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path: root/tools/memory-model/scripts/README
AgeCommit message (Expand)Author
2019-06-19tools/memory-model: Do not use "herd" to refer to "herd7"Andrea Parri
2019-01-21tools/memory-model: Add scripts to check github litmus testsPaul E. McKenney
> Russell King's ARM Linux kernel treeRussell King
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+arch/x86/resctrl filesystems/resctrl
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+security/LSM security/lsm-development
+security/LSM-sctp security/SCTP
+serial/driver driver-api/serial/driver
+serial/index driver-api/serial/index
+serial/moxa-smartio driver-api/tty/moxa-smartio
+serial/n_gsm driver-api/tty/n_gsm
+serial/serial-iso7816 driver-api/serial/serial-iso7816
+serial/serial-rs485 driver-api/serial/serial-rs485
+serial/tty driver-api/tty/tty_ldisc
+sh/booting arch/sh/booting
+sh/features arch/sh/features
+sh/index arch/sh/index
+sh/new-machine arch/sh/new-machine
+sh/register-banks arch/sh/register-banks
+sparc/adi arch/sparc/adi
+sparc/console arch/sparc/console
+sparc/features arch/sparc/features
+sparc/index arch/sparc/index
+sparc/oradax/oracle-dax arch/sparc/oradax/oracle-dax
+staging/kprobes trace/kprobes
+sysctl/abi admin-guide/sysctl/abi
+sysctl/fs admin-guide/sysctl/fs
+sysctl/index admin-guide/sysctl/index
+sysctl/kernel admin-guide/sysctl/kernel
+sysctl/net admin-guide/sysctl/net
+sysctl/sunrpc admin-guide/sysctl/sunrpc
+sysctl/user admin-guide/sysctl/user
+sysctl/vm admin-guide/sysctl/vm
+thermal/cpu-cooling-api driver-api/thermal/cpu-cooling-api
+thermal/exynos_thermal driver-api/thermal/exynos_thermal
+thermal/exynos_thermal_emulation driver-api/thermal/exynos_thermal_emulation
+thermal/index driver-api/thermal/index
+thermal/intel_powerclamp admin-guide/thermal/intel_powerclamp
+thermal/nouveau_thermal driver-api/thermal/nouveau_thermal
+thermal/power_allocator driver-api/thermal/power_allocator
+thermal/sysfs-api driver-api/thermal/sysfs-api
+thermal/x86_pkg_temperature_thermal driver-api/thermal/x86_pkg_temperature_thermal
+tpm/index security/tpm/index
+tpm/tpm_vtpm_proxy security/tpm/tpm_vtpm_proxy
+trace/coresight trace/coresight/coresight
+trace/coresight-cpu-debug trace/coresight/coresight-cpu-debug
+trace/rv/da_monitor_synthesis trace/rv/monitor_synthesis
+translations/it_IT/admin-guide/security-bugs translations/it_IT/process/security-bugs
+translations/it_IT/process/clang-format translations/it_IT/dev-tools/clang-format
+translations/it_IT/process/magic-number translations/it_IT/staging/magic-number
+translations/it_IT/riscv/patch-acceptance translations/it_IT/arch/riscv/patch-acceptance
+translations/ja_JP/howto translations/ja_JP/process/howto
+translations/ko_KR/howto translations/ko_KR/process/howto
+translations/sp_SP/howto translations/sp_SP/process/howto
+translations/sp_SP/submitting-patches translations/sp_SP/process/submitting-patches
+translations/zh_CN/admin-guide/security-bugs translations/zh_CN/process/security-bugs
+translations/zh_CN/arch translations/zh_CN/arch/index
+translations/zh_CN/arm64/amu translations/zh_CN/arch/arm64/amu
+translations/zh_CN/arm64/elf_hwcaps translations/zh_CN/arch/arm64/elf_hwcaps
+translations/zh_CN/arm64/hugetlbpage translations/zh_CN/arch/arm64/hugetlbpage
+translations/zh_CN/arm64/index translations/zh_CN/arch/arm64/index
+translations/zh_CN/arm64/perf translations/zh_CN/arch/arm64/perf
+translations/zh_CN/coding-style translations/zh_CN/process/coding-style
+translations/zh_CN/loongarch/booting translations/zh_CN/arch/loongarch/booting
+translations/zh_CN/loongarch/features translations/zh_CN/arch/loongarch/features
+translations/zh_CN/loongarch/index translations/zh_CN/arch/loongarch/index
+translations/zh_CN/loongarch/introduction translations/zh_CN/arch/loongarch/introduction
+translations/zh_CN/loongarch/irq-chip-model translations/zh_CN/arch/loongarch/irq-chip-model
+translations/zh_CN/mips/booting translations/zh_CN/arch/mips/booting
+translations/zh_CN/mips/features translations/zh_CN/arch/mips/features
+translations/zh_CN/mips/index translations/zh_CN/arch/mips/index
+translations/zh_CN/mips/ingenic-tcu translations/zh_CN/arch/mips/ingenic-tcu
+translations/zh_CN/openrisc/index translations/zh_CN/arch/openrisc/index
+translations/zh_CN/openrisc/openrisc_port translations/zh_CN/arch/openrisc/openrisc_port
+translations/zh_CN/openrisc/todo translations/zh_CN/arch/openrisc/todo
+translations/zh_CN/parisc/debugging translations/zh_CN/arch/parisc/debugging
+translations/zh_CN/parisc/index translations/zh_CN/arch/parisc/index
+translations/zh_CN/parisc/registers translations/zh_CN/arch/parisc/registers
+translations/zh_CN/riscv/boot-image-header translations/zh_CN/arch/riscv/boot-image-header
+translations/zh_CN/riscv/index translations/zh_CN/arch/riscv/index
+translations/zh_CN/riscv/patch-acceptance translations/zh_CN/arch/riscv/patch-acceptance
+translations/zh_CN/riscv/vm-layout translations/zh_CN/arch/riscv/vm-layout
+translations/zh_CN/vm/active_mm translations/zh_CN/mm/active_mm
+translations/zh_CN/vm/balance translations/zh_CN/mm/balance
+translations/zh_CN/vm/damon/api translations/zh_CN/mm/damon/api
+translations/zh_CN/vm/damon/design translations/zh_CN/mm/damon/design
+translations/zh_CN/vm/damon/faq translations/zh_CN/mm/damon/faq
+translations/zh_CN/vm/damon/index translations/zh_CN/mm/damon/index
+translations/zh_CN/vm/free_page_reporting translations/zh_CN/mm/free_page_reporting
+translations/zh_CN/vm/highmem translations/zh_CN/mm/highmem
+translations/zh_CN/vm/hmm translations/zh_CN/mm/hmm
+translations/zh_CN/vm/hugetlbfs_reserv translations/zh_CN/mm/hugetlbfs_reserv
+translations/zh_CN/vm/hwpoison translations/zh_CN/mm/hwpoison
+translations/zh_CN/vm/index translations/zh_CN/mm/index
+translations/zh_CN/vm/ksm translations/zh_CN/mm/ksm
+translations/zh_CN/vm/memory-model translations/zh_CN/mm/memory-model
+translations/zh_CN/vm/mmu_notifier translations/zh_CN/mm/mmu_notifier
+translations/zh_CN/vm/numa translations/zh_CN/mm/numa
+translations/zh_CN/vm/overcommit-accounting translations/zh_CN/mm/overcommit-accounting
+translations/zh_CN/vm/page_frags translations/zh_CN/mm/page_frags
+translations/zh_CN/vm/page_owner translations/zh_CN/mm/page_owner
+translations/zh_CN/vm/page_table_check translations/zh_CN/mm/page_table_check
+translations/zh_CN/vm/remap_file_pages translations/zh_CN/mm/remap_file_pages
+translations/zh_CN/vm/split_page_table_lock translations/zh_CN/mm/split_page_table_lock
+translations/zh_CN/vm/zsmalloc translations/zh_CN/mm/zsmalloc
+translations/zh_TW/arm64/amu translations/zh_TW/arch/arm64/amu
+translations/zh_TW/arm64/elf_hwcaps translations/zh_TW/arch/arm64/elf_hwcaps
+translations/zh_TW/arm64/hugetlbpage translations/zh_TW/arch/arm64/hugetlbpage
+translations/zh_TW/arm64/index translations/zh_TW/arch/arm64/index
+translations/zh_TW/arm64/perf translations/zh_TW/arch/arm64/perf
+tty/device_drivers/oxsemi-tornado misc-devices/oxsemi-tornado
+tty/index driver-api/tty/index
+tty/n_tty driver-api/tty/n_tty
+tty/tty_buffer driver-api/tty/tty_buffer
+tty/tty_driver driver-api/tty/tty_driver
+tty/tty_internals driver-api/tty/tty_internals
+tty/tty_ldisc driver-api/tty/tty_ldisc
+tty/tty_port driver-api/tty/tty_port
+tty/tty_struct driver-api/tty/tty_struct
+usb/typec driver-api/usb/typec
+usb/usb3-debug-port driver-api/usb/usb3-debug-port
+userspace-api/media/drivers/st-vgxy61 userspace-api/media/drivers/vgxy61
+userspace-api/media/v4l/pixfmt-meta-d4xx userspace-api/media/v4l/metafmt-d4xx
+userspace-api/media/v4l/pixfmt-meta-intel-ipu3 userspace-api/media/v4l/metafmt-intel-ipu3
+userspace-api/media/v4l/pixfmt-meta-rkisp1 userspace-api/media/v4l/metafmt-rkisp1
+userspace-api/media/v4l/pixfmt-meta-uvc userspace-api/media/v4l/metafmt-uvc
+userspace-api/media/v4l/pixfmt-meta-vivid userspace-api/media/v4l/metafmt-vivid
+userspace-api/media/v4l/pixfmt-meta-vsp1-hgo userspace-api/media/v4l/metafmt-vsp1-hgo
+userspace-api/media/v4l/pixfmt-meta-vsp1-hgt userspace-api/media/v4l/metafmt-vsp1-hgt
+virt/coco/sevguest virt/coco/sev-guest
+virt/kvm/amd-memory-encryption virt/kvm/x86/amd-memory-encryption
+virt/kvm/arm/psci virt/kvm/arm/fw-pseudo-registers
+virt/kvm/cpuid virt/kvm/x86/cpuid
+virt/kvm/hypercalls virt/kvm/x86/hypercalls
+virt/kvm/mmu virt/kvm/x86/mmu
+virt/kvm/msr virt/kvm/x86/msr
+virt/kvm/nested-vmx virt/kvm/x86/nested-vmx
+virt/kvm/running-nested-guests virt/kvm/x86/running-nested-guests
+virt/kvm/s390-diag virt/kvm/s390/s390-diag
+virt/kvm/s390-pv virt/kvm/s390/s390-pv
+virt/kvm/s390-pv-boot virt/kvm/s390/s390-pv-boot
+virt/kvm/timekeeping virt/kvm/x86/timekeeping
+virt/kvm/x86/halt-polling virt/kvm/halt-polling
+virtual/index virt/index
+virtual/kvm/amd-memory-encryption virt/kvm/x86/amd-memory-encryption
+virtual/kvm/cpuid virt/kvm/x86/cpuid
+virtual/kvm/index virt/kvm/index
+virtual/kvm/vcpu-requests virt/kvm/vcpu-requests
+virtual/paravirt_ops virt/paravirt_ops
+vm/active_mm mm/active_mm
+vm/arch_pgtable_helpers mm/arch_pgtable_helpers
+vm/balance mm/balance
+vm/bootmem mm/bootmem
+vm/damon/api mm/damon/api
+vm/damon/design mm/damon/design
+vm/damon/faq mm/damon/faq
+vm/damon/index mm/damon/index
+vm/free_page_reporting mm/free_page_reporting
+vm/highmem mm/highmem
+vm/hmm mm/hmm
+vm/hugetlbfs_reserv mm/hugetlbfs_reserv
+vm/hugetlbpage admin-guide/mm/hugetlbpage
+vm/hwpoison mm/hwpoison
+vm/idle_page_tracking admin-guide/mm/idle_page_tracking
+vm/index mm/index
+vm/ksm mm/ksm
+vm/memory-model mm/memory-model
+vm/mmu_notifier mm/mmu_notifier
+vm/numa mm/numa
+vm/numa_memory_policy admin-guide/mm/numa_memory_policy
+vm/oom mm/oom
+vm/overcommit-accounting mm/overcommit-accounting
+vm/page_allocation mm/page_allocation
+vm/page_cache mm/page_cache
+vm/page_frags mm/page_frags
+vm/page_migration mm/page_migration
+vm/page_owner mm/page_owner
+vm/page_reclaim mm/page_reclaim
+vm/page_table_check mm/page_table_check
+vm/page_tables mm/page_tables
+vm/pagemap admin-guide/mm/pagemap
+vm/physical_memory mm/physical_memory
+vm/process_addrs mm/process_addrs
+vm/remap_file_pages mm/remap_file_pages
+vm/shmfs mm/shmfs
+vm/slab mm/slab
+vm/slub admin-guide/mm/slab
+vm/soft-dirty admin-guide/mm/soft-dirty
+vm/split_page_table_lock mm/split_page_table_lock
+vm/swap mm/swap
+vm/swap_numa admin-guide/mm/swap_numa
+vm/transhuge mm/transhuge
+vm/unevictable-lru mm/unevictable-lru
+vm/userfaultfd admin-guide/mm/userfaultfd
+vm/vmalloc mm/vmalloc
+vm/vmalloced-kernel-stacks mm/vmalloced-kernel-stacks
+vm/vmemmap_dedup mm/vmemmap_dedup
+vm/zsmalloc mm/zsmalloc
+vm/zswap admin-guide/mm/zswap
+watch_queue core-api/watch_queue
+x86/amd-memory-encryption arch/x86/amd-memory-encryption
+x86/amd_hsmp arch/x86/amd_hsmp
+x86/boot arch/x86/boot
+x86/booting-dt arch/x86/booting-dt
+x86/buslock arch/x86/buslock
+x86/cpuinfo arch/x86/cpuinfo
+x86/earlyprintk arch/x86/earlyprintk
+x86/elf_auxvec arch/x86/elf_auxvec
+x86/entry_64 arch/x86/entry_64
+x86/exception-tables arch/x86/exception-tables
+x86/features arch/x86/features
+x86/i386/IO-APIC arch/x86/i386/IO-APIC
+x86/i386/index arch/x86/i386/index
+x86/ifs arch/x86/ifs
+x86/index arch/x86/index
+x86/intel-hfi arch/x86/intel-hfi
+x86/intel_txt arch/x86/intel_txt
+x86/iommu arch/x86/iommu
+x86/kernel-stacks arch/x86/kernel-stacks
+x86/mds arch/x86/mds
+x86/microcode arch/x86/microcode
+x86/mtrr arch/x86/mtrr
+x86/orc-unwinder arch/x86/orc-unwinder
+x86/pat arch/x86/pat
+x86/protection-keys core-api/protection-keys
+x86/pti arch/x86/pti
+x86/resctrl filesystems/resctrl
+x86/resctrl_ui filesystems/resctrl
+x86/sgx arch/x86/sgx
+x86/sva arch/x86/sva
+x86/tdx arch/x86/tdx
+x86/tlb arch/x86/tlb
+x86/topology arch/x86/topology
+x86/tsx_async_abort arch/x86/tsx_async_abort
+x86/usb-legacy-support arch/x86/usb-legacy-support
+x86/x86_64/5level-paging arch/x86/x86_64/5level-paging
+x86/x86_64/cpu-hotplug-spec arch/x86/x86_64/cpu-hotplug-spec
+x86/x86_64/fake-numa-for-cpusets arch/x86/x86_64/fake-numa-for-cpusets
+x86/x86_64/fsgs arch/x86/x86_64/fsgs
+x86/x86_64/index arch/x86/x86_64/index
+x86/x86_64/machinecheck arch/x86/x86_64/machinecheck
+x86/x86_64/mm arch/x86/x86_64/mm
+x86/x86_64/uefi arch/x86/x86_64/uefi
+x86/xstate arch/x86/xstate
+x86/zero-page arch/x86/zero-page
+xilinx/eemi driver-api/xilinx/eemi
+xilinx/index driver-api/xilinx/index
+xtensa/atomctl arch/xtensa/atomctl
+xtensa/booting arch/xtensa/booting
+xtensa/features arch/xtensa/features
+xtensa/index arch/xtensa/index
+xtensa/mmu arch/xtensa/mmu
diff --git a/Documentation/ABI/README b/Documentation/ABI/README
index 8bac9cb09a6d..315fffe1f831 100644
--- a/Documentation/ABI/README
+++ b/Documentation/ABI/README
@@ -1,4 +1,5 @@
-This directory attempts to document the ABI between the Linux kernel and
+This part of the documentation inside Documentation/ABI directory
+attempts to document the ABI between the Linux kernel and
userspace, and the relative stability of these interfaces. Due to the
everchanging nature of Linux, and the differing maturity levels, these
interfaces should be used by userspace programs in different ways.
@@ -45,7 +46,9 @@ Every file in these directories will contain the following information:
What: Short description of the interface
Date: Date created
-KernelVersion: Kernel version this feature first showed up in.
+KernelVersion: (Optional) Kernel version this feature first showed up in.
+ Note: git history often provides more accurate version
+ info, so this field may be omitted.
Contact: Primary contact for this interface (may be a mailing list)
Description: Long description of the interface and how to use it.
Users: All users of this interface who wish to be notified when
diff --git a/Documentation/ABI/obsolete/automount-tracefs-debugfs b/Documentation/ABI/obsolete/automount-tracefs-debugfs
new file mode 100644
index 000000000000..a5196ec78cb5
--- /dev/null
+++ b/Documentation/ABI/obsolete/automount-tracefs-debugfs
@@ -0,0 +1,20 @@
+What: /sys/kernel/debug/tracing
+Date: May 2008
+KernelVersion: 2.6.27
+Contact: linux-trace-kernel@vger.kernel.org
+Description:
+
+ The ftrace was first added to the kernel, its interface was placed
+ into the debugfs file system under the "tracing" directory. Access
+ to the files were in /sys/kernel/debug/tracing. As systems wanted
+ access to the tracing interface without having to enable debugfs, a
+ new interface was created called "tracefs". This was a stand alone
+ file system and was usually mounted in /sys/kernel/tracing.
+
+ To allow older tooling to continue to operate, when mounting
+ debugfs, the tracefs file system would automatically get mounted in
+ the "tracing" directory of debugfs. The tracefs interface was added
+ in January 2015 in the v4.1 kernel.
+
+ All tooling should now be using tracefs directly and the "tracing"
+ directory in debugfs should be removed by January 2030.
diff --git a/Documentation/ABI/obsolete/o2cb b/Documentation/ABI/obsolete/o2cb
index fe7e45e17bc7..8f39b596731d 100644
--- a/Documentation/ABI/obsolete/o2cb
+++ b/Documentation/ABI/obsolete/o2cb
@@ -1,11 +1,11 @@
What: /sys/o2cb
Date: Dec 2005
KernelVersion: 2.6.16
-Contact: ocfs2-devel@oss.oracle.com
+Contact: ocfs2-devel@lists.linux.dev
Description: Ocfs2-tools looks at 'interface-revision' for versioning
information. Each logmask/ file controls a set of debug prints
and can be written into with the strings "allow", "deny", or
"off". Reading the file returns the current state.
Was renamed to /sys/fs/u2cb/
Users: ocfs2-tools. It's sufficient to mail proposed changes to
- ocfs2-devel@oss.oracle.com.
+ ocfs2-devel@lists.linux.dev.
diff --git a/Documentation/ABI/obsolete/sysfs-bus-iio b/Documentation/ABI/obsolete/sysfs-bus-iio
index b64394b0b374..a13523561958 100644
--- a/Documentation/ABI/obsolete/sysfs-bus-iio
+++ b/Documentation/ABI/obsolete/sysfs-bus-iio
@@ -48,10 +48,6 @@ What: /sys/.../iio:deviceX/scan_elements/in_timestamp_en
What: /sys/.../iio:deviceX/scan_elements/in_voltageY_supply_en
What: /sys/.../iio:deviceX/scan_elements/in_voltageY_en
What: /sys/.../iio:deviceX/scan_elements/in_voltageY-voltageZ_en
-What: /sys/.../iio:deviceX/scan_elements/in_voltageY_i_en
-What: /sys/.../iio:deviceX/scan_elements/in_voltageY_q_en
-What: /sys/.../iio:deviceX/scan_elements/in_voltage_i_en
-What: /sys/.../iio:deviceX/scan_elements/in_voltage_q_en
What: /sys/.../iio:deviceX/scan_elements/in_incli_x_en
What: /sys/.../iio:deviceX/scan_elements/in_incli_y_en
What: /sys/.../iio:deviceX/scan_elements/in_pressureY_en
@@ -73,10 +69,6 @@ What: /sys/.../iio:deviceX/scan_elements/in_incli_type
What: /sys/.../iio:deviceX/scan_elements/in_voltageY_type
What: /sys/.../iio:deviceX/scan_elements/in_voltage_type
What: /sys/.../iio:deviceX/scan_elements/in_voltageY_supply_type
-What: /sys/.../iio:deviceX/scan_elements/in_voltageY_i_type
-What: /sys/.../iio:deviceX/scan_elements/in_voltageY_q_type
-What: /sys/.../iio:deviceX/scan_elements/in_voltage_i_type
-What: /sys/.../iio:deviceX/scan_elements/in_voltage_q_type
What: /sys/.../iio:deviceX/scan_elements/in_timestamp_type
What: /sys/.../iio:deviceX/scan_elements/in_pressureY_type
What: /sys/.../iio:deviceX/scan_elements/in_pressure_type
@@ -110,10 +102,6 @@ Description:
What: /sys/.../iio:deviceX/scan_elements/in_voltageY_index
What: /sys/.../iio:deviceX/scan_elements/in_voltageY_supply_index
-What: /sys/.../iio:deviceX/scan_elements/in_voltageY_i_index
-What: /sys/.../iio:deviceX/scan_elements/in_voltageY_q_index
-What: /sys/.../iio:deviceX/scan_elements/in_voltage_i_index
-What: /sys/.../iio:deviceX/scan_elements/in_voltage_q_index
What: /sys/.../iio:deviceX/scan_elements/in_accel_x_index
What: /sys/.../iio:deviceX/scan_elements/in_accel_y_index
What: /sys/.../iio:deviceX/scan_elements/in_accel_z_index
diff --git a/Documentation/ABI/obsolete/sysfs-driver-samsung-laptop b/Documentation/ABI/obsolete/sysfs-driver-samsung-laptop
new file mode 100644
index 000000000000..204c3f3a1d78
--- /dev/null
+++ b/Documentation/ABI/obsolete/sysfs-driver-samsung-laptop
@@ -0,0 +1,10 @@
+What: /sys/devices/platform/samsung/battery_life_extender
+Date: December 1, 2011
+KernelVersion: 3.3
+Contact: Corentin Chary <corentin.chary@gmail.com>
+Description: Max battery charge level can be modified, battery cycle
+ life can be extended by reducing the max battery charge
+ level.
+
+ - 0 means normal battery mode (100% charge)
+ - 1 means battery life extender mode (80% charge)
diff --git a/Documentation/ABI/obsolete/sysfs-gpio b/Documentation/ABI/obsolete/sysfs-gpio
index b8b0fd341c17..0d3f12c4dcbd 100644
--- a/Documentation/ABI/obsolete/sysfs-gpio
+++ b/Documentation/ABI/obsolete/sysfs-gpio
@@ -19,14 +19,22 @@ Description:
/export ... asks the kernel to export a GPIO to userspace
/unexport ... to return a GPIO to the kernel
/gpioN ... for each exported GPIO #N OR
- /<LINE-NAME> ... for a properly named GPIO line
/value ... always readable, writes fail for input GPIOs
/direction ... r/w as: in, out (default low); write: high, low
/edge ... r/w as: none, falling, rising, both
+ /active_low ... r/w as: 0, 1
/gpiochipN ... for each gpiochip; #N is its first GPIO
/base ... (r/o) same as N
- /label ... (r/o) descriptive, not necessarily unique
+ /label ... (r/o) descriptive chip name
/ngpio ... (r/o) number of GPIOs; numbered N to N + (ngpio - 1)
+ /gpio<OFFSET>
+ /value ... always readable, writes fail for input GPIOs
+ /direction ... r/w as: in, out (default low); write: high, low
+ /chipX ... for each gpiochip; #X is the gpio device ID
+ /export ... asks the kernel to export a GPIO at HW offset X to userspace
+ /unexport ... to return a GPIO at HW offset X to the kernel
+ /label ... (r/o) descriptive chip name
+ /ngpio ... (r/o) number of GPIOs exposed by the chip
- This ABI is deprecated and will be removed after 2020. It is
- replaced with the GPIO character device.
+ This ABI is obsoleted by Documentation/ABI/testing/gpio-cdev and will be
+ removed after 2020.
diff --git a/Documentation/ABI/obsolete/sysfs-kernel-kexec-kdump b/Documentation/ABI/obsolete/sysfs-kernel-kexec-kdump
new file mode 100644
index 000000000000..ba26a6a1d2be
--- /dev/null
+++ b/Documentation/ABI/obsolete/sysfs-kernel-kexec-kdump
@@ -0,0 +1,71 @@
+NOTE: all the ABIs listed in this file are deprecated and will be removed after 2028.
+
+Here are the alternative ABIs:
++------------------------------------+-----------------------------------------+
+| Deprecated | Alternative |
++------------------------------------+-----------------------------------------+
+| /sys/kernel/kexec_loaded | /sys/kernel/kexec/loaded |
++------------------------------------+-----------------------------------------+
+| /sys/kernel/kexec_crash_loaded | /sys/kernel/kexec/crash_loaded |
++------------------------------------+-----------------------------------------+
+| /sys/kernel/kexec_crash_size | /sys/kernel/kexec/crash_size |
++------------------------------------+-----------------------------------------+
+| /sys/kernel/crash_elfcorehdr_size | /sys/kernel/kexec/crash_elfcorehdr_size |
++------------------------------------+-----------------------------------------+
+| /sys/kernel/kexec_crash_cma_ranges | /sys/kernel/kexec/crash_cma_ranges |
++------------------------------------+-----------------------------------------+
+
+
+What: /sys/kernel/kexec_loaded
+Date: Jun 2006
+Contact: kexec@lists.infradead.org
+Description: read only
+ Indicates whether a new kernel image has been loaded
+ into memory using the kexec system call. It shows 1 if
+ a kexec image is present and ready to boot, or 0 if none
+ is loaded.
+User: kexec tools, kdump service
+
+What: /sys/kernel/kexec_crash_loaded
+Date: Jun 2006
+Contact: kexec@lists.infradead.org
+Description: read only
+ Indicates whether a crash (kdump) kernel is currently
+ loaded into memory. It shows 1 if a crash kernel has been
+ successfully loaded for panic handling, or 0 if no crash
+ kernel is present.
+User: Kexec tools, Kdump service
+
+What: /sys/kernel/kexec_crash_size
+Date: Dec 2009
+Contact: kexec@lists.infradead.org
+Description: read/write
+ Shows the amount of memory reserved for loading the crash
+ (kdump) kernel. It reports the size, in bytes, of the
+ crash kernel area defined by the crashkernel= parameter.
+ This interface also allows reducing the crashkernel
+ reservation by writing a smaller value, and the reclaimed
+ space is added back to the system RAM.
+User: Kdump service
+
+What: /sys/kernel/crash_elfcorehdr_size
+Date: Aug 2023
+Contact: kexec@lists.infradead.org
+Description: read only
+ Indicates the preferred size of the memory buffer for the
+ ELF core header used by the crash (kdump) kernel. It defines
+ how much space is needed to hold metadata about the crashed
+ system, including CPU and memory information. This information
+ is used by the user space utility kexec to support updating the
+ in-kernel kdump image during hotplug operations.
+User: Kexec tools
+
+What: /sys/kernel/kexec_crash_cma_ranges
+Date: Nov 2025
+Contact: kexec@lists.infradead.org
+Description: read only
+ Provides information about the memory ranges reserved from
+ the Contiguous Memory Allocator (CMA) area that are allocated
+ to the crash (kdump) kernel. It lists the start and end physical
+ addresses of CMA regions assigned for crashkernel use.
+User: kdump service
diff --git a/Documentation/ABI/obsolete/sysfs-platform-ideapad-laptop b/Documentation/ABI/obsolete/sysfs-platform-ideapad-laptop
new file mode 100644
index 000000000000..c1dbd19c679c
--- /dev/null
+++ b/Documentation/ABI/obsolete/sysfs-platform-ideapad-laptop
@@ -0,0 +1,8 @@
+What: /sys/bus/platform/devices/VPC2004:*/conservation_mode
+Date: Aug 2017
+KernelVersion: 4.14
+Contact: platform-driver-x86@vger.kernel.org
+Description:
+ Controls whether the conservation mode is enabled or not.
+ This feature limits the maximum battery charge percentage to
+ around 50-60% in order to prolong the lifetime of the battery.
diff --git a/Documentation/ABI/obsolete/sysfs-selinux-user b/Documentation/ABI/obsolete/sysfs-selinux-user
new file mode 100644
index 000000000000..8ab7557f283f
--- /dev/null
+++ b/Documentation/ABI/obsolete/sysfs-selinux-user
@@ -0,0 +1,12 @@
+What: /sys/fs/selinux/user
+Date: April 2005 (predates git)
+KernelVersion: 2.6.12-rc2 (predates git)
+Contact: selinux@vger.kernel.org
+Description:
+
+ The selinuxfs "user" node allows userspace to request a list
+ of security contexts that can be reached for a given SELinux
+ user from a given starting context. This was used by libselinux
+ when various login-style programs requested contexts for
+ users, but libselinux stopped using it in 2020.
+ Kernel support will be removed no sooner than Dec 2025.
diff --git a/Documentation/ABI/removed/o2cb b/Documentation/ABI/removed/o2cb
index 20c91adca6d4..61cff238fbe8 100644
--- a/Documentation/ABI/removed/o2cb
+++ b/Documentation/ABI/removed/o2cb
@@ -1,10 +1,10 @@
What: /sys/o2cb symlink
Date: May 2011
KernelVersion: 3.0
-Contact: ocfs2-devel@oss.oracle.com
+Contact: ocfs2-devel@lists.linux.dev
Description: This is a symlink: /sys/o2cb to /sys/fs/o2cb. The symlink is
removed when new versions of ocfs2-tools which know to look
in /sys/fs/o2cb are sufficiently prevalent. Don't code new
software to look here, it should try /sys/fs/o2cb instead.
Users: ocfs2-tools. It's sufficient to mail proposed changes to
- ocfs2-devel@oss.oracle.com.
+ ocfs2-devel@lists.linux.dev.
diff --git a/Documentation/ABI/testing/sysfs-class-cxl b/Documentation/ABI/removed/sysfs-class-cxl
index 594fda254130..266c413b96e8 100644
--- a/Documentation/ABI/testing/sysfs-class-cxl
+++ b/Documentation/ABI/removed/sysfs-class-cxl
@@ -1,3 +1,5 @@
+The cxl driver was removed in 6.15.
+
Please note that attributes that are shared between devices are stored in
the directory pointed to by the symlink device/.
For example, the real path of the attribute /sys/class/cxl/afu0.0s/irqs_max is
@@ -7,7 +9,7 @@ For example, the real path of the attribute /sys/class/cxl/afu0.0s/irqs_max is
Slave contexts (eg. /sys/class/cxl/afu0.0s):
What: /sys/class/cxl/<afu>/afu_err_buf
-Date: September 2014
+Date: September 2014, removed February 2025
Contact: linuxppc-dev@lists.ozlabs.org
Description: read only
AFU Error Buffer contents. The contents of this file are
@@ -18,7 +20,7 @@ Description: read only
What: /sys/class/cxl/<afu>/irqs_max
-Date: September 2014
+Date: September 2014, removed February 2025
Contact: linuxppc-dev@lists.ozlabs.org
Description: read/write
Decimal value of maximum number of interrupts that can be
@@ -29,7 +31,7 @@ Description: read/write
Users: https://github.com/ibm-capi/libcxl
What: /sys/class/cxl/<afu>/irqs_min
-Date: September 2014
+Date: September 2014, removed February 2025
Contact: linuxppc-dev@lists.ozlabs.org
Description: read only
Decimal value of the minimum number of interrupts that
@@ -39,15 +41,15 @@ Description: read only
Users: https://github.com/ibm-capi/libcxl
What: /sys/class/cxl/<afu>/mmio_size
-Date: September 2014
+Date: September 2014, removed February 2025
Contact: linuxppc-dev@lists.ozlabs.org
Description: read only
- Decimal value of the size of the MMIO space that may be mmaped
+ Decimal value of the size of the MMIO space that may be mmapped
by userspace.
Users: https://github.com/ibm-capi/libcxl
What: /sys/class/cxl/<afu>/modes_supported
-Date: September 2014
+Date: September 2014, removed February 2025
Contact: linuxppc-dev@lists.ozlabs.org
Description: read only
List of the modes this AFU supports. One per line.
@@ -55,7 +57,7 @@ Description: read only
Users: https://github.com/ibm-capi/libcxl
What: /sys/class/cxl/<afu>/mode
-Date: September 2014
+Date: September 2014, removed February 2025
Contact: linuxppc-dev@lists.ozlabs.org
Description: read/write
The current mode the AFU is using. Will be one of the modes
@@ -65,7 +67,7 @@ Users: https://github.com/ibm-capi/libcxl
What: /sys/class/cxl/<afu>/prefault_mode
-Date: September 2014
+Date: September 2014, removed February 2025
Contact: linuxppc-dev@lists.ozlabs.org
Description: read/write
Set the mode for prefaulting in segments into the segment table
@@ -85,7 +87,7 @@ Description: read/write
Users: https://github.com/ibm-capi/libcxl
What: /sys/class/cxl/<afu>/reset
-Date: September 2014
+Date: September 2014, removed February 2025
Contact: linuxppc-dev@lists.ozlabs.org
Description: write only
Writing 1 here will reset the AFU provided there are not
@@ -93,14 +95,14 @@ Description: write only
Users: https://github.com/ibm-capi/libcxl
What: /sys/class/cxl/<afu>/api_version
-Date: September 2014
+Date: September 2014, removed February 2025
Contact: linuxppc-dev@lists.ozlabs.org
Description: read only
Decimal value of the current version of the kernel/user API.
Users: https://github.com/ibm-capi/libcxl
What: /sys/class/cxl/<afu>/api_version_compatible
-Date: September 2014
+Date: September 2014, removed February 2025
Contact: linuxppc-dev@lists.ozlabs.org
Description: read only
Decimal value of the lowest version of the userspace API
@@ -114,7 +116,7 @@ An AFU may optionally export one or more PCIe like configuration records, known
as AFU configuration records, which will show up here (if present).
What: /sys/class/cxl/<afu>/cr<config num>/vendor
-Date: February 2015
+Date: February 2015, removed February 2025
Contact: linuxppc-dev@lists.ozlabs.org
Description: read only
Hexadecimal value of the vendor ID found in this AFU
@@ -122,7 +124,7 @@ Description: read only
Users: https://github.com/ibm-capi/libcxl
What: /sys/class/cxl/<afu>/cr<config num>/device
-Date: February 2015
+Date: February 2015, removed February 2025
Contact: linuxppc-dev@lists.ozlabs.org
Description: read only
Hexadecimal value of the device ID found in this AFU
@@ -130,7 +132,7 @@ Description: read only
Users: https://github.com/ibm-capi/libcxl
What: /sys/class/cxl/<afu>/cr<config num>/class
-Date: February 2015
+Date: February 2015, removed February 2025
Contact: linuxppc-dev@lists.ozlabs.org
Description: read only
Hexadecimal value of the class code found in this AFU
@@ -138,7 +140,7 @@ Description: read only
Users: https://github.com/ibm-capi/libcxl
What: /sys/class/cxl/<afu>/cr<config num>/config
-Date: February 2015
+Date: February 2015, removed February 2025
Contact: linuxppc-dev@lists.ozlabs.org
Description: read only
This binary file provides raw access to the AFU configuration
@@ -152,22 +154,22 @@ Users: https://github.com/ibm-capi/libcxl
Master contexts (eg. /sys/class/cxl/afu0.0m)
What: /sys/class/cxl/<afu>m/mmio_size
-Date: September 2014
+Date: September 2014, removed February 2025
Contact: linuxppc-dev@lists.ozlabs.org
Description: read only
- Decimal value of the size of the MMIO space that may be mmaped
+ Decimal value of the size of the MMIO space that may be mmapped
by userspace. This includes all slave contexts space also.
Users: https://github.com/ibm-capi/libcxl
What: /sys/class/cxl/<afu>m/pp_mmio_len
-Date: September 2014
+Date: September 2014, removed February 2025
Contact: linuxppc-dev@lists.ozlabs.org
Description: read only
Decimal value of the Per Process MMIO space length.
Users: https://github.com/ibm-capi/libcxl
What: /sys/class/cxl/<afu>m/pp_mmio_off
-Date: September 2014
+Date: September 2014, removed February 2025
Contact: linuxppc-dev@lists.ozlabs.org
Description: read only
(not in a guest)
@@ -178,21 +180,21 @@ Users: https://github.com/ibm-capi/libcxl
Card info (eg. /sys/class/cxl/card0)
What: /sys/class/cxl/<card>/caia_version
-Date: September 2014
+Date: September 2014, removed February 2025
Contact: linuxppc-dev@lists.ozlabs.org
Description: read only
Identifies the CAIA Version the card implements.
Users: https://github.com/ibm-capi/libcxl
What: /sys/class/cxl/<card>/psl_revision
-Date: September 2014
+Date: September 2014, removed February 2025
Contact: linuxppc-dev@lists.ozlabs.org
Description: read only
Identifies the revision level of the PSL.
Users: https://github.com/ibm-capi/libcxl
What: /sys/class/cxl/<card>/base_image
-Date: September 2014
+Date: September 2014, removed February 2025
Contact: linuxppc-dev@lists.ozlabs.org
Description: read only
(not in a guest)
@@ -203,7 +205,7 @@ Description: read only
Users: https://github.com/ibm-capi/libcxl
What: /sys/class/cxl/<card>/image_loaded
-Date: September 2014
+Date: September 2014, removed February 2025
Contact: linuxppc-dev@lists.ozlabs.org
Description: read only
(not in a guest)
@@ -212,7 +214,7 @@ Description: read only
Users: https://github.com/ibm-capi/libcxl
What: /sys/class/cxl/<card>/load_image_on_perst
-Date: December 2014
+Date: December 2014, removed February 2025
Contact: linuxppc-dev@lists.ozlabs.org
Description: read/write
(not in a guest)
@@ -229,7 +231,7 @@ Description: read/write
Users: https://github.com/ibm-capi/libcxl
What: /sys/class/cxl/<card>/reset
-Date: October 2014
+Date: October 2014, removed February 2025
Contact: linuxppc-dev@lists.ozlabs.org
Description: write only
Writing 1 will issue a PERST to card provided there are no
@@ -240,7 +242,7 @@ Description: write only
Users: https://github.com/ibm-capi/libcxl
What: /sys/class/cxl/<card>/perst_reloads_same_image
-Date: July 2015
+Date: July 2015, removed February 2025
Contact: linuxppc-dev@lists.ozlabs.org
Description: read/write
(not in a guest)
@@ -254,7 +256,7 @@ Description: read/write
Users: https://github.com/ibm-capi/libcxl
What: /sys/class/cxl/<card>/psl_timebase_synced
-Date: March 2016
+Date: March 2016, removed February 2025
Contact: linuxppc-dev@lists.ozlabs.org
Description: read only
Returns 1 if the psl timebase register is synchronized
@@ -262,7 +264,7 @@ Description: read only
Users: https://github.com/ibm-capi/libcxl
What: /sys/class/cxl/<card>/tunneled_ops_supported
-Date: May 2018
+Date: May 2018, removed February 2025
Contact: linuxppc-dev@lists.ozlabs.org
Description: read only
Returns 1 if tunneled operations are supported in capi mode,
diff --git a/Documentation/ABI/removed/sysfs-class-rfkill b/Documentation/ABI/removed/sysfs-class-rfkill
index f25174eafd55..20cb688af173 100644
--- a/Documentation/ABI/removed/sysfs-class-rfkill
+++ b/Documentation/ABI/removed/sysfs-class-rfkill
@@ -4,7 +4,7 @@ For details to this subsystem look at Documentation/driver-api/rfkill.rst.
What: /sys/class/rfkill/rfkill[0-9]+/claim
Date: 09-Jul-2007
-KernelVersion v2.6.22
+KernelVersion: v2.6.22
Contact: linux-wireless@vger.kernel.org
Description: This file was deprecated because there no longer was a way to
claim just control over a single rfkill instance.
diff --git a/Documentation/ABI/removed/sysfs-firmware-efi-vars b/Documentation/ABI/removed/sysfs-firmware-efi-vars
new file mode 100644
index 000000000000..8d97368b149b
--- /dev/null
+++ b/Documentation/ABI/removed/sysfs-firmware-efi-vars
@@ -0,0 +1,12 @@
+What: /sys/firmware/efi/vars
+Date: April 2004, removed March 2023
+Description:
+ This directory exposed interfaces for interacting with
+ EFI variables. For more information on EFI variables,
+ see 'Variable Services' in the UEFI specification
+ (section 7.2 in specification version 2.3 Errata D).
+
+ The 'efivars' sysfs interface was removed in March of 2023,
+ after being considered deprecated no later than September
+ of 2020. Its functionality has been replaced by the
+ 'efivarfs' filesystem.
diff --git a/Documentation/ABI/stable/o2cb b/Documentation/ABI/stable/o2cb
index b62a967f01a0..3a83b5c54e93 100644
--- a/Documentation/ABI/stable/o2cb
+++ b/Documentation/ABI/stable/o2cb
@@ -1,10 +1,10 @@
What: /sys/fs/o2cb/
Date: Dec 2005
KernelVersion: 2.6.16
-Contact: ocfs2-devel@oss.oracle.com
+Contact: ocfs2-devel@lists.linux.dev
Description: Ocfs2-tools looks at 'interface-revision' for versioning
information. Each logmask/ file controls a set of debug prints
and can be written into with the strings "allow", "deny", or
"off". Reading the file returns the current state.
Users: ocfs2-tools. It's sufficient to mail proposed changes to
- ocfs2-devel@oss.oracle.com.
+ ocfs2-devel@lists.linux.dev.
diff --git a/Documentation/ABI/stable/sysfs-block b/Documentation/ABI/stable/sysfs-block
index c57e5b7cb532..0ed10aeff86b 100644
--- a/Documentation/ABI/stable/sysfs-block
+++ b/Documentation/ABI/stable/sysfs-block
@@ -21,10 +21,63 @@ Description:
device is offset from the internal allocation unit's
natural alignment.
+What: /sys/block/<disk>/atomic_write_max_bytes
+Date: February 2024
+Contact: Himanshu Madhani <himanshu.madhani@oracle.com>
+Description:
+ [RO] This parameter specifies the maximum atomic write
+ size reported by the device. This parameter is relevant
+ for merging of writes, where a merged atomic write
+ operation must not exceed this number of bytes.
+ This parameter may be greater than the value in
+ atomic_write_unit_max_bytes as
+ atomic_write_unit_max_bytes will be rounded down to a
+ power-of-two and atomic_write_unit_max_bytes may also be
+ limited by some other queue limits, such as max_segments.
+ This parameter - along with atomic_write_unit_min_bytes
+ and atomic_write_unit_max_bytes - will not be larger than
+ max_hw_sectors_kb, but may be larger than max_sectors_kb.
+
+
+What: /sys/block/<disk>/atomic_write_unit_min_bytes
+Date: February 2024
+Contact: Himanshu Madhani <himanshu.madhani@oracle.com>
+Description:
+ [RO] This parameter specifies the smallest block which can
+ be written atomically with an atomic write operation. All
+ atomic write operations must begin at a
+ atomic_write_unit_min boundary and must be multiples of
+ atomic_write_unit_min. This value must be a power-of-two.
+
+
+What: /sys/block/<disk>/atomic_write_unit_max_bytes
+Date: February 2024
+Contact: Himanshu Madhani <himanshu.madhani@oracle.com>
+Description:
+ [RO] This parameter defines the largest block which can be
+ written atomically with an atomic write operation. This
+ value must be a multiple of atomic_write_unit_min and must
+ be a power-of-two. This value will not be larger than
+ atomic_write_max_bytes.
+
+
+What: /sys/block/<disk>/atomic_write_boundary_bytes
+Date: February 2024
+Contact: Himanshu Madhani <himanshu.madhani@oracle.com>
+Description:
+ [RO] A device may need to internally split an atomic write I/O
+ which straddles a given logical block address boundary. This
+ parameter specifies the size in bytes of the atomic boundary if
+ one is reported by the device. This value must be a
+ power-of-two and at least the size as in
+ atomic_write_unit_max_bytes.
+ Any attempt to merge atomic write I/Os must not result in a
+ merged I/O which crosses this boundary (if any).
+
What: /sys/block/<disk>/diskseq
Date: February 2021
-Contact: Matteo Croce <mcroce@microsoft.com>
+Contact: Matteo Croce <teknoraver@meta.com>
Description:
The /sys/block/<disk>/diskseq files reports the disk
sequence number, which is a monotonically increasing
@@ -56,6 +109,10 @@ Contact: Martin K. Petersen <martin.petersen@oracle.com>
Description:
Indicates whether a storage device is capable of storing
integrity metadata. Set if the device is T10 PI-capable.
+ This flag is set to 1 if the storage media is formatted
+ with T10 Protection Information. If the storage media is
+ not formatted with T10 Protection Information, this flag
+ is set to 0.
What: /sys/block/<disk>/integrity/format
@@ -64,6 +121,13 @@ Contact: Martin K. Petersen <martin.petersen@oracle.com>
Description:
Metadata format for integrity capable block device.
E.g. T10-DIF-TYPE1-CRC.
+ This field describes the type of T10 Protection Information
+ that the block device can send and receive.
+ If the device can store application integrity metadata but
+ no T10 Protection Information profile is used, this field
+ contains "nop".
+ If the device does not support integrity metadata, this
+ field contains "none".
What: /sys/block/<disk>/integrity/protection_interval_bytes
@@ -89,7 +153,17 @@ Date: June 2008
Contact: Martin K. Petersen <martin.petersen@oracle.com>
Description:
Number of bytes of integrity tag space available per
- 512 bytes of data.
+ protection_interval_bytes, which is typically
+ the device's logical block size.
+ This field describes the size of the application tag
+ if the storage device is formatted with T10 Protection
+ Information and permits use of the application tag.
+ The tag_size is reported in bytes and indicates the
+ space available for adding an opaque tag to each block
+ (protection_interval_bytes).
+ If the device does not support T10 Protection Information
+ (even if the device provides application integrity
+ metadata space), this field is set to 0.
What: /sys/block/<disk>/integrity/write_generate
@@ -101,6 +175,16 @@ Description:
devices that support receiving integrity metadata.
+What: /sys/block/<disk>/partscan
+Date: May 2024
+Contact: Christoph Hellwig <hch@lst.de>
+Description:
+ The /sys/block/<disk>/partscan files reports if partition
+ scanning is enabled for the disk. It returns "1" if partition
+ scanning is enabled, or "0" if not. The value type is a 32-bit
+ unsigned integer, but only "0" and "1" are valid values.
+
+
What: /sys/block/<disk>/<partition>/alignment_offset
Date: April 2009
Contact: Martin K. Petersen <martin.petersen@oracle.com>
@@ -166,6 +250,17 @@ Description:
encryption, refer to Documentation/block/inline-encryption.rst.
+What: /sys/block/<disk>/queue/crypto/hw_wrapped_keys
+Date: February 2025
+Contact: linux-block@vger.kernel.org
+Description:
+ [RO] The presence of this file indicates that the device
+ supports hardware-wrapped inline encryption keys, i.e. key blobs
+ that can only be unwrapped and used by dedicated hardware. For
+ more information about hardware-wrapped inline encryption keys,
+ see Documentation/block/inline-encryption.rst.
+
+
What: /sys/block/<disk>/queue/crypto/max_dun_bits
Date: February 2022
Contact: linux-block@vger.kernel.org
@@ -204,6 +299,15 @@ Description:
use with inline encryption.
+What: /sys/block/<disk>/queue/crypto/raw_keys
+Date: February 2025
+Contact: linux-block@vger.kernel.org
+Description:
+ [RO] The presence of this file indicates that the device
+ supports raw inline encryption keys, i.e. keys that are managed
+ in raw, plaintext form in software.
+
+
What: /sys/block/<disk>/queue/dax
Date: June 2016
Contact: linux-block@vger.kernel.org
@@ -295,7 +399,7 @@ Description:
capable of executing requests targeting different sector ranges
in parallel. For instance, single LUN multi-actuator hard-disks
will have an independent_access_ranges directory if the device
- correctly advertizes the sector ranges of its actuators.
+ correctly advertises the sector ranges of its actuators.
The independent_access_ranges directory contains one directory
per access range, with each range described using the sector
@@ -361,6 +465,13 @@ Description:
[RW] This file is used to control (on/off) the iostats
accounting of the disk.
+What: /sys/block/<disk>/queue/iostats_passthrough
+Date: October 2024
+Contact: linux-block@vger.kernel.org
+Description:
+ [RW] This file is used to control (on/off) the iostats
+ accounting of the disk for passthrough commands.
+
What: /sys/block/<disk>/queue/logical_block_size
Date: May 2009
@@ -436,6 +547,21 @@ Description:
[RO] Maximum size in bytes of a single element in a DMA
scatter/gather list.
+What: /sys/block/<disk>/queue/max_write_streams
+Date: November 2024
+Contact: linux-block@vger.kernel.org
+Description:
+ [RO] Maximum number of write streams supported, 0 if not
+ supported. If supported, valid values are 1 through
+ max_write_streams, inclusive.
+
+What: /sys/block/<disk>/queue/write_stream_granularity
+Date: November 2024
+Contact: linux-block@vger.kernel.org
+Description:
+ [RO] Granularity of a write stream in bytes. The granularity
+ of a write stream is the size that should be discarded or
+ overwritten together to avoid write amplification in the device.
What: /sys/block/<disk>/queue/max_segments
Date: March 2010
@@ -477,16 +603,10 @@ Date: July 2003
Contact: linux-block@vger.kernel.org
Description:
[RW] This controls how many requests may be allocated in the
- block layer for read or write requests. Note that the total
- allocated number may be twice this amount, since it applies only
- to reads or writes (not the accumulated sum).
-
- To avoid priority inversion through request starvation, a
- request queue maintains a separate request pool per each cgroup
- when CONFIG_BLK_CGROUP is enabled, and this parameter applies to
- each such per-block-cgroup request pool. IOW, if there are N
- block cgroups, each request queue may have up to N request
- pools, each independently regulated by nr_requests.
+ block layer. Noted this value only represents the quantity for a
+ single blk_mq_tags instance. The actual number for the entire
+ device depends on the hardware queue count, whether elevator is
+ enabled, and whether tags are shared.
What: /sys/block/<disk>/queue/nr_zones
@@ -531,6 +651,9 @@ Description:
[RW] Maximum number of kilobytes to read-ahead for filesystems
on this block device.
+ For MADV_HUGEPAGE, the readahead size may exceed this setting
+ since its granularity is based on the hugepage size.
+
What: /sys/block/<disk>/queue/rotational
Date: January 2009
@@ -584,18 +707,6 @@ Description:
the data. If no such restriction exists, this file will contain
'0'. This file is writable for testing purposes.
-
-What: /sys/block/<disk>/queue/throttle_sample_time
-Date: March 2017
-Contact: linux-block@vger.kernel.org
-Description:
- [RW] This is the time window that blk-throttle samples data, in
- millisecond. blk-throttle makes decision based on the
- samplings. Lower time means cgroups have more smooth throughput,
- but higher CPU overhead. This exists only when
- CONFIG_BLK_DEV_THROTTLING_LOW is enabled.
-
-
What: /sys/block/<disk>/queue/virt_boundary_mask
Date: April 2021
Contact: linux-block@vger.kernel.org
@@ -614,7 +725,7 @@ Contact: linux-block@vger.kernel.org
Description:
[RW] If the device is registered for writeback throttling, then
this file shows the target minimum read latency. If this latency
- is exceeded in a given window of time (see wb_window_usec), then
+ is exceeded in a given window of time (see curr_win_nsec), then
the writeback throttling will start scaling back writes. Writing
a value of '0' to this file disables the feature. Writing a
value of '-1' to this file resets the value to the default
@@ -661,6 +772,39 @@ Description:
0, write zeroes is not supported by the device.
+What: /sys/block/<disk>/queue/write_zeroes_unmap_max_hw_bytes
+Date: January 2025
+Contact: Zhang Yi <yi.zhang@huawei.com>
+Description:
+ [RO] This file indicates whether a device supports zeroing data
+ in a specified block range without incurring the cost of
+ physically writing zeroes to the media for each individual
+ block. If this parameter is set to write_zeroes_max_bytes, the
+ device implements a zeroing operation which opportunistically
+ avoids writing zeroes to media while still guaranteeing that
+ subsequent reads from the specified block range will return
+ zeroed data. This operation is a best-effort optimization, a
+ device may fall back to physically writing zeroes to the media
+ due to other factors such as misalignment or being asked to
+ clear a block range smaller than the device's internal
+ allocation unit. If this parameter is set to 0, the device may
+ have to write each logical block media during a zeroing
+ operation.
+
+
+What: /sys/block/<disk>/queue/write_zeroes_unmap_max_bytes
+Date: January 2025
+Contact: Zhang Yi <yi.zhang@huawei.com>
+Description:
+ [RW] While write_zeroes_unmap_max_hw_bytes is the hardware limit
+ for the device, this setting is the software limit. Since the
+ unmap write zeroes operation is a best-effort optimization, some
+ devices may still physically writing zeroes to media. So the
+ speed of this operation is not guaranteed. Writing a value of
+ '0' to this file disables this operation. Otherwise, this
+ parameter should be equal to write_zeroes_unmap_max_hw_bytes.
+
+
What: /sys/block/<disk>/queue/zone_append_max_bytes
Date: May 2020
Contact: linux-block@vger.kernel.org
diff --git a/Documentation/ABI/stable/sysfs-bus-mhi b/Documentation/ABI/stable/sysfs-bus-mhi
index 96ccc3385a2b..8b9698fa0beb 100644
--- a/Documentation/ABI/stable/sysfs-bus-mhi
+++ b/Documentation/ABI/stable/sysfs-bus-mhi
@@ -1,7 +1,7 @@
What: /sys/bus/mhi/devices/.../serialnumber
Date: Sept 2020
KernelVersion: 5.10
-Contact: Bhaumik Bhatt <bbhatt@codeaurora.org>
+Contact: mhi@lists.linux.dev
Description: The file holds the serial number of the client device obtained
using a BHI (Boot Host Interface) register read after at least
one attempt to power up the device has been done. If read
@@ -12,7 +12,7 @@ Users: Any userspace application or clients interested in device info.
What: /sys/bus/mhi/devices/.../oem_pk_hash
Date: Sept 2020
KernelVersion: 5.10
-Contact: Bhaumik Bhatt <bbhatt@codeaurora.org>
+Contact: mhi@lists.linux.dev
Description: The file holds the OEM PK Hash value of the endpoint device
obtained using a BHI (Boot Host Interface) register read after
at least one attempt to power up the device has been done. If
@@ -29,3 +29,16 @@ Description: Initiates a SoC reset on the MHI controller. A SoC reset is
This can be useful as a method of recovery if the device is
non-responsive, or as a means of loading new firmware as a
system administration task.
+
+What: /sys/bus/mhi/devices/.../trigger_edl
+Date: April 2024
+KernelVersion: 6.10
+Contact: mhi@lists.linux.dev
+Description: Writing a non-zero value to this file will force devices to
+ enter EDL (Emergency Download) mode. This entry only exists for
+ devices capable of entering the EDL mode using the standard EDL
+ triggering mechanism defined in the MHI spec v1.2. Once in EDL
+ mode, the flash programmer image can be downloaded to the
+ device to enter the flash programmer execution environment.
+ This can be useful if user wants to use QDL (Qualcomm Download,
+ which is used to download firmware over EDL) to update firmware.
diff --git a/Documentation/ABI/stable/sysfs-bus-nvmem b/Documentation/ABI/stable/sysfs-bus-nvmem
index c399323f37de..0ae8cb074acf 100644
--- a/Documentation/ABI/stable/sysfs-bus-nvmem
+++ b/Documentation/ABI/stable/sysfs-bus-nvmem
@@ -1,6 +1,23 @@
+What: /sys/bus/nvmem/devices/.../force_ro
+Date: June 2024
+KernelVersion: 6.11
+Contact: Marek Vasut <marex@denx.de>
+Description:
+ This read/write attribute allows users to set read-write
+ devices as read-only and back to read-write from userspace.
+ This can be used to unlock and relock write-protection of
+ devices which are generally locked, except during sporadic
+ programming operation.
+ Read returns '0' or '1' for read-write or read-only modes
+ respectively.
+ Write parses one of 'YyTt1NnFf0', or [oO][NnFf] for "on"
+ and "off", i.e. what kstrtobool() supports.
+ Note: This file is only present if CONFIG_NVMEM_SYSFS
+ is enabled.
+
What: /sys/bus/nvmem/devices/.../nvmem
Date: July 2015
-KernelVersion: 4.2
+KernelVersion: 4.2
Contact: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Description:
This file allows user to read/write the raw NVMEM contents.
@@ -20,3 +37,14 @@ Description:
...
*
0001000
+
+What: /sys/bus/nvmem/devices/.../type
+Date: November 2018
+KernelVersion: 5.0
+Contact: Alexandre Belloni <alexandre.belloni@bootlin.com>
+Description:
+ This read-only attribute allows user to read the NVMEM
+ device type. Supported types are "Unknown", "EEPROM",
+ "OTP", "Battery backed", "FRAM".
+ Note: This file is only present if CONFIG_NVMEM_SYSFS
+ is enabled.
diff --git a/Documentation/ABI/stable/sysfs-class-backlight b/Documentation/ABI/stable/sysfs-class-backlight
index 023fb52645f8..40b8c46b95b2 100644
--- a/Documentation/ABI/stable/sysfs-class-backlight
+++ b/Documentation/ABI/stable/sysfs-class-backlight
@@ -3,10 +3,11 @@ Date: April 2005
KernelVersion: 2.6.12
Contact: Richard Purdie <rpurdie@rpsys.net>
Description:
- Control BACKLIGHT power, values are FB_BLANK_* from fb.h
+ Control BACKLIGHT power, values are compatible with
+ FB_BLANK_* from fb.h
- - FB_BLANK_UNBLANK (0) : power on.
- - FB_BLANK_POWERDOWN (4) : power off
+ - 0 (FB_BLANK_UNBLANK) : power on.
+ - 4 (FB_BLANK_POWERDOWN) : power off
Users: HAL
What: /sys/class/backlight/<backlight>/brightness
@@ -25,7 +26,12 @@ Date: March 2006
KernelVersion: 2.6.17
Contact: Richard Purdie <rpurdie@rpsys.net>
Description:
- Show the actual brightness by querying the hardware.
+ Show the actual brightness by querying the hardware. Due
+ to implementation differences in hardware this may not
+ match the value in 'brightness'. For example some hardware
+ may treat blanking differently or have custom power saving
+ features. Userspace should generally use the values in
+ 'brightness' to make decisions.
Users: HAL
What: /sys/class/backlight/<backlight>/max_brightness
diff --git a/Documentation/ABI/stable/sysfs-class-bluetooth b/Documentation/ABI/stable/sysfs-class-bluetooth
new file mode 100644
index 000000000000..36be02471174
--- /dev/null
+++ b/Documentation/ABI/stable/sysfs-class-bluetooth
@@ -0,0 +1,9 @@
+What: /sys/class/bluetooth/hci<index>/reset
+Date: 14-Jan-2025
+KernelVersion: 6.13
+Contact: linux-bluetooth@vger.kernel.org
+Description: This write-only attribute allows users to trigger the vendor reset
+ method on the Bluetooth device when arbitrary data is written.
+ The reset may or may not be done through the device transport
+ (e.g., UART/USB), and can also be done through an out-of-band
+ approach such as GPIO.
diff --git a/Documentation/ABI/stable/sysfs-class-infiniband b/Documentation/ABI/stable/sysfs-class-infiniband
index ebf08c604336..694f23a03a28 100644
--- a/Documentation/ABI/stable/sysfs-class-infiniband
+++ b/Documentation/ABI/stable/sysfs-class-infiniband
@@ -356,7 +356,7 @@ Description:
pkeys/<n>: (RO) Displays the contents of the physical
key table n = 0..126
- mcgs/: (RO) Muticast group table
+ mcgs/: (RO) Multicast group table
<m>/gid_idx/0: (RO) Display the GID mapping m = 1..2
diff --git a/Documentation/ABI/stable/sysfs-class-rfkill b/Documentation/ABI/stable/sysfs-class-rfkill
index 037979f7dc4b..67b605e3dd16 100644
--- a/Documentation/ABI/stable/sysfs-class-rfkill
+++ b/Documentation/ABI/stable/sysfs-class-rfkill
@@ -16,7 +16,7 @@ Description: The rfkill class subsystem folder.
What: /sys/class/rfkill/rfkill[0-9]+/name
Date: 09-Jul-2007
-KernelVersion v2.6.22
+KernelVersion: v2.6.22
Contact: linux-wireless@vger.kernel.org
Description: Name assigned by driver to this key (interface or driver name).
Values: arbitrary string.
@@ -24,7 +24,7 @@ Values: arbitrary string.
What: /sys/class/rfkill/rfkill[0-9]+/type
Date: 09-Jul-2007
-KernelVersion v2.6.22
+KernelVersion: v2.6.22
Contact: linux-wireless@vger.kernel.org
Description: Driver type string ("wlan", "bluetooth", etc).
Values: See include/linux/rfkill.h.
@@ -32,7 +32,7 @@ Values: See include/linux/rfkill.h.
What: /sys/class/rfkill/rfkill[0-9]+/persistent
Date: 09-Jul-2007
-KernelVersion v2.6.22
+KernelVersion: v2.6.22
Contact: linux-wireless@vger.kernel.org
Description: Whether the soft blocked state is initialised from non-volatile
storage at startup.
@@ -44,7 +44,7 @@ Values: A numeric value:
What: /sys/class/rfkill/rfkill[0-9]+/state
Date: 09-Jul-2007
-KernelVersion v2.6.22
+KernelVersion: v2.6.22
Contact: linux-wireless@vger.kernel.org
Description: Current state of the transmitter.
This file was scheduled to be removed in 2014, but due to its
@@ -67,7 +67,7 @@ Values: A numeric value.
What: /sys/class/rfkill/rfkill[0-9]+/hard
Date: 12-March-2010
-KernelVersion v2.6.34
+KernelVersion: v2.6.34
Contact: linux-wireless@vger.kernel.org
Description: Current hardblock state. This file is read only.
Values: A numeric value.
@@ -81,7 +81,7 @@ Values: A numeric value.
What: /sys/class/rfkill/rfkill[0-9]+/soft
Date: 12-March-2010
-KernelVersion v2.6.34
+KernelVersion: v2.6.34
Contact: linux-wireless@vger.kernel.org
Description: Current softblock state. This file is read and write.
Values: A numeric value.
diff --git a/Documentation/ABI/stable/sysfs-devices-node b/Documentation/ABI/stable/sysfs-devices-node
index 402af4b2b905..2d0e023f22a7 100644
--- a/Documentation/ABI/stable/sysfs-devices-node
+++ b/Documentation/ABI/stable/sysfs-devices-node
@@ -177,6 +177,12 @@ Description:
The cache write policy: 0 for write-back, 1 for write-through,
other or unknown.
+What: /sys/devices/system/node/nodeX/memory_side_cache/indexY/address_mode
+Date: March 2025
+Contact: Dave Jiang <dave.jiang@intel.com>
+Description:
+ The address mode: 0 for reserved, 1 for extended-linear.
+
What: /sys/devices/system/node/nodeX/x86/sgx_total_bytes
Date: November 2021
Contact: Jarkko Sakkinen <jarkko@kernel.org>
@@ -221,3 +227,12 @@ Contact: Jiaqi Yan <jiaqiyan@google.com>
Description:
Of the raw poisoned pages on a NUMA node, how many pages are
recovered by memory error recovery attempt.
+
+What: /sys/devices/system/node/nodeX/reclaim
+Date: June 2025
+Contact: Linux Memory Management list <linux-mm@kvack.org>
+Description:
+ Perform user-triggered proactive reclaim on a NUMA node.
+ This interface is equivalent to the memcg variant.
+
+ See Documentation/admin-guide/cgroup-v2.rst
diff --git a/Documentation/ABI/stable/sysfs-devices-system-cpu b/Documentation/ABI/stable/sysfs-devices-system-cpu
index 902392d7eddf..cf78bd99f6c8 100644
--- a/Documentation/ABI/stable/sysfs-devices-system-cpu
+++ b/Documentation/ABI/stable/sysfs-devices-system-cpu
@@ -24,12 +24,6 @@ Description: Default value for the Data Stream Control Register (DSCR) on
If set by a process it will be inherited by child processes.
Values: 64 bit unsigned integer (bit field)
-What: /sys/devices/system/cpu/cpuX/topology/physical_package_id
-Description: physical package id of cpuX. Typically corresponds to a physical
- socket number, but the actual value is architecture and platform
- dependent.
-Values: integer
-
What: /sys/devices/system/cpu/cpuX/topology/die_id
Description: the CPU die ID of cpuX. Typically it is the hardware platform's
identifier (rather than the kernel's). The actual value is
@@ -86,10 +80,6 @@ What: /sys/devices/system/cpu/cpuX/topology/die_cpus
Description: internal kernel map of CPUs within the same die.
Values: hexadecimal bitmask.
-What: /sys/devices/system/cpu/cpuX/topology/ppin
-Description: per-socket protected processor inventory number
-Values: hexadecimal.
-
What: /sys/devices/system/cpu/cpuX/topology/die_cpus_list
Description: human-readable list of CPUs within the same die.
The format is like 0-3, 8-11, 14,17.
diff --git a/Documentation/ABI/stable/sysfs-driver-dma-idxd b/Documentation/ABI/stable/sysfs-driver-dma-idxd
index 534b7a3d59fc..4a355e6747ae 100644
--- a/Documentation/ABI/stable/sysfs-driver-dma-idxd
+++ b/Documentation/ABI/stable/sysfs-driver-dma-idxd
@@ -84,7 +84,7 @@ What: /sys/bus/dsa/devices/dsa<m>/pasid_enabled
Date: Oct 27, 2020
KernelVersion: 5.11.0
Contact: dmaengine@vger.kernel.org
-Description: To indicate if PASID (process address space identifier) is
+Description: To indicate if user PASID (process address space identifier) is
enabled or not for this device.
What: /sys/bus/dsa/devices/dsa<m>/state
@@ -246,14 +246,14 @@ Description: Controls whether PRS disable is turned on for the workqueue.
capability.
What: /sys/bus/dsa/devices/wq<m>.<n>/occupancy
-Date May 25, 2021
+Date: May 25, 2021
KernelVersion: 5.14.0
Contact: dmaengine@vger.kernel.org
Description: Show the current number of entries in this WQ if WQ Occupancy
Support bit WQ capabilities is 1.
What: /sys/bus/dsa/devices/wq<m>.<n>/enqcmds_retries
-Date Oct 29, 2021
+Date: Oct 29, 2021
KernelVersion: 5.17.0
Contact: dmaengine@vger.kernel.org
Description: Indicate the number of retires for an enqcmds submission on a sharedwq.
@@ -270,6 +270,12 @@ Description: Shows the operation capability bits displayed in bitmap format
correlates to the operations allowed. It's visible only
on platforms that support the capability.
+What: /sys/bus/dsa/devices/wq<m>.<n>/driver_name
+Date: Sept 8, 2023
+KernelVersion: 6.7.0
+Contact: dmaengine@vger.kernel.org
+Description: Name of driver to be bounded to the wq.
+
What: /sys/bus/dsa/devices/engine<m>.<n>/group_id
Date: Oct 25, 2019
KernelVersion: 5.6.0
diff --git a/Documentation/ABI/stable/sysfs-driver-misc-cp500 b/Documentation/ABI/stable/sysfs-driver-misc-cp500
new file mode 100644
index 000000000000..525bd18a2db4
--- /dev/null
+++ b/Documentation/ABI/stable/sysfs-driver-misc-cp500
@@ -0,0 +1,25 @@
+What: /sys/devices/pciXXXX:XX/0000:XX:XX.X/0000:XX:XX.X/version
+Date: June 2024
+KernelVersion: 6.11
+Contact: Gerhard Engleder <eg@keba.com>
+Description: Version of the FPGA configuration bitstream as printable string.
+ This file is read only.
+Users: KEBA
+
+What: /sys/devices/pciXXXX:XX/0000:XX:XX.X/0000:XX:XX.X/keep_cfg
+Date: June 2024
+KernelVersion: 6.11
+Contact: Gerhard Engleder <eg@keba.com>
+Description: Flag which signals if FPGA shall keep or reload configuration
+ bitstream on reset. Normal FPGA behavior and default is to keep
+ configuration bitstream and to only reset the configured logic.
+
+ Reloading configuration on reset enables an update of the
+ configuration bitstream with a simple reboot. Otherwise it is
+ necessary to power cycle the device to reload the new
+ configuration bitstream.
+
+ This file is read/write. The values are as follows:
+ 1 = keep configuration bitstream on reset, default
+ 0 = reload configuration bitstream on reset
+Users: KEBA
diff --git a/Documentation/ABI/stable/sysfs-driver-mlxreg-io b/Documentation/ABI/stable/sysfs-driver-mlxreg-io
index 60953903d007..f59461111221 100644
--- a/Documentation/ABI/stable/sysfs-driver-mlxreg-io
+++ b/Documentation/ABI/stable/sysfs-driver-mlxreg-io
@@ -662,3 +662,154 @@ Description: This file shows the system reset cause due to AC power failure.
Value 1 in file means this is reset cause, 0 - otherwise.
The file is read only.
+
+What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld5_pn
+What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld5_version
+What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld5_version_min
+Date: August 2023
+KernelVersion: 6.6
+Contact: Vadim Pasternak <vadimp@nvidia.com>
+Description: These files show with which CPLD part numbers, version and minor
+ versions have been burned the 5-th CPLD device equipped on a
+ system.
+
+ The files are read only.
+
+What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/jtag_cap
+Date: August 2023
+KernelVersion: 6.6
+Contact: Vadim Pasternak <vadimp@nvidia.com>
+Description: This file indicates the available method of CPLD/FPGA devices
+ field update through the JTAG chain:
+
+ b00 - field update through LPC bus register memory space.
+ b01 - Reserved.
+ b10 - Reserved.
+ b11 - field update through CPU GPIOs bit-banging.
+
+ The file is read only.
+
+What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lid_open
+Date: August 2023
+KernelVersion: 6.6
+Contact: Vadim Pasternak <vadimp@nvidia.com>
+Description: 1 - indicates that system lid is opened, otherwise 0.
+
+ The file is read only.
+
+What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_long_pwr_pb
+Date: August 2023
+KernelVersion: 6.6
+Contact: Vadim Pasternak <vadimp@nvidia.com>
+Description: This file if set 1 indicates that system has been reset by
+ long press of power button.
+
+ The file is read only.
+
+What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_swb_dc_dc_pwr_fail
+Date: August 2023
+KernelVersion: 6.6
+Contact: Vadim Pasternak <vadimp@nvidia.com>
+Description: This file shows 1 in case the system reset happened due to the
+ failure of any DC-DC power converter devices equipped on the
+ switch board.
+
+ The file is read only.
+
+What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/global_wp_request
+Date: May 2025
+KernelVersion: 6.16
+Contact: Vadim Pasternak <vadimp@nvidia.com>
+Description: This file when written 1 activates request to allow access to
+ the write protected flashes. Such request can be performed only
+ for system equipped with BMC (Board Management Controller),
+ which can grant access to protected flashes. In case BMC allows
+ access - it will respond with "global_wp_response". BMC decides
+ regarding time window of granted access. After granted window is
+ expired, BMC will change value back to 0.
+ Default value is 0.
+
+ The file is read/write.
+
+What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/global_wp_response
+Date: May 2025
+KernelVersion: 6.16
+Contact: Vadim Pasternak <vadimp@nvidia.com>
+Description: This file, when set 1, indicates that access to protected
+ flashes have been granted to host CPU by BMC.
+ Default value is 0.
+
+ The file is read only.
+
+What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/shutdown_unlock
+Date: May 2025
+KernelVersion: 6.16
+Contact: Vadim Pasternak <vadimp@nvidia.com>
+Description: When ASICs are getting overheated, system protection
+ hardware mechanism enforces system reboot. After system
+ reboot ASICs come up in locked state. To unlock ASICs,
+ this file should be written 1
+ Default value is 0.
+
+ The file is read/write.
+
+What: /sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/*-00**/mlxreg-io.*/hwmon/hwmon*/boot_progress
+Date: May 2025
+KernelVersion: 6.16
+Contact: Vadim Pasternak <vadimp@nvidia.com>
+Description: These files show the Data Process Unit board boot progress
+ state. Valid states are:
+ - 4 : OS starting.
+ - 5 : OS running.
+ - 6 : Low-Power Standby.
+
+ The file is read only.
+
+What: /sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/*-00**/mlxreg-io.*/hwmon/hwmon*/dpu_id
+Date: May 2025
+KernelVersion: 6.16
+Contact: Vadim Pasternak <vadimp@nvidia.com>
+Description: This file shows hardware Id of Data Process Unit board.
+
+ The file is read only.
+
+What: /sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/*-00**/mlxreg-io.*/hwmon/hwmon*/reset_aux_pwr_or_reload
+What: /sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/*-00**/mlxreg-io.*/hwmon/hwmon*/reset_dpu_thermal
+What: /sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/*-00**/mlxreg-io.*/hwmon/hwmon*/reset_from_main_board
+Date: May 2025
+KernelVersion: 6.16
+Contact: Vadim Pasternak <vadimp@nvidia.com>
+Description: These files expose the cause of the most recent reset of the Data
+ Processing Unit (DPU) board. The possible causes are:
+ - Power auxiliary outage or power reload.
+ - Thermal shutdown.
+ - Reset request from the main board.
+ Value 1 in file means this is reset cause, 0 - otherwise. Only one of
+ the above causes could be 1 at the same time, representing only last
+ reset cause.
+
+ The files are read only.
+
+What: /sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/*-00**/mlxreg-io.*/hwmon/hwmon*/perst_rst
+What: /sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/*-00**/mlxreg-io.*/hwmon/hwmon*/phy_rst
+What: /sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/*-00**/mlxreg-io.*/hwmon/hwmon*/tpm_rst
+What: /sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/*-00**/mlxreg-io.*/hwmon/hwmon*/usbphy_rst
+Date: May 2025
+KernelVersion: 6.16
+Contact: Vadim Pasternak <vadimp@nvidia.com>
+Description: These files allow to reset hardware components of Data Process
+ Unit board. Respectively PCI, Ethernet PHY, TPM and USB PHY
+ resets.
+ Default values for all the attributes is 1. Writing 0 will
+ cause reset of the related component.
+
+ The files are read/write.
+
+What: /sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/*-00**/mlxreg-io.*/hwmon/hwmon*/ufm_upgrade
+Date: May 2025
+KernelVersion: 6.16
+Contact: Vadim Pasternak <vadimp@nvidia.com>
+Description: These files show status of Unified Fabric Manager upgrade.
+ state. 0 - means upgrade is done, 1 - otherwise.
+
+ The file is read only.
diff --git a/Documentation/ABI/stable/sysfs-driver-qaic b/Documentation/ABI/stable/sysfs-driver-qaic
new file mode 100644
index 000000000000..c767a93342b3
--- /dev/null
+++ b/Documentation/ABI/stable/sysfs-driver-qaic
@@ -0,0 +1,19 @@
+What: /sys/bus/pci/drivers/qaic/XXXX:XX:XX.X/accel/accel<minor_nr>/dbc<N>_state
+Date: October 2025
+KernelVersion: 6.19
+Contact: Jeff Hugo <jeff.hugo@oss.qualcomm.com>
+Description: Represents the current state of DMA Bridge channel (DBC). Below are the possible
+ states:
+
+ =================== ==========================================================
+ IDLE (0) DBC is free and can be activated
+ ASSIGNED (1) DBC is activated and a workload is running on device
+ BEFORE_SHUTDOWN (2) Sub-system associated with this workload has crashed and
+ it will shutdown soon
+ AFTER_SHUTDOWN (3) Sub-system associated with this workload has crashed and
+ it has shutdown
+ BEFORE_POWER_UP (4) Sub-system associated with this workload is shutdown and
+ it will be powered up soon
+ AFTER_POWER_UP (5) Sub-system associated with this workload is now powered up
+ =================== ==========================================================
+Users: Any userspace application or clients interested in DBC state.
diff --git a/Documentation/ABI/stable/sysfs-firmware-efi-vars b/Documentation/ABI/stable/sysfs-firmware-efi-vars
deleted file mode 100644
index 46ccd233e359..000000000000
--- a/Documentation/ABI/stable/sysfs-firmware-efi-vars
+++ /dev/null
@@ -1,79 +0,0 @@
-What: /sys/firmware/efi/vars
-Date: April 2004
-Contact: Matt Domsch <Matt_Domsch@dell.com>
-Description:
- This directory exposes interfaces for interactive with
- EFI variables. For more information on EFI variables,
- see 'Variable Services' in the UEFI specification
- (section 7.2 in specification version 2.3 Errata D).
-
- In summary, EFI variables are named, and are classified
- into separate namespaces through the use of a vendor
- GUID. They also have an arbitrary binary value
- associated with them.
-
- The efivars module enumerates these variables and
- creates a separate directory for each one found. Each
- directory has a name of the form "<key>-<vendor guid>"
- and contains the following files:
-
- =============== ========================================
- attributes: A read-only text file enumerating the
- EFI variable flags. Potential values
- include:
-
- EFI_VARIABLE_NON_VOLATILE
- EFI_VARIABLE_BOOTSERVICE_ACCESS
- EFI_VARIABLE_RUNTIME_ACCESS
- EFI_VARIABLE_HARDWARE_ERROR_RECORD
- EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS
-
- See the EFI documentation for an
- explanation of each of these variables.
-
- data: A read-only binary file that can be read
- to attain the value of the EFI variable
-
- guid: The vendor GUID of the variable. This
- should always match the GUID in the
- variable's name.
-
- raw_var: A binary file that can be read to obtain
- a structure that contains everything
- there is to know about the variable.
- For structure definition see "struct
- efi_variable" in the kernel sources.
-
- This file can also be written to in
- order to update the value of a variable.
- For this to work however, all fields of
- the "struct efi_variable" passed must
- match byte for byte with the structure
- read out of the file, save for the value
- portion.
-
- **Note** the efi_variable structure
- read/written with this file contains a
- 'long' type that may change widths
- depending on your underlying
- architecture.
-
- size: As ASCII representation of the size of
- the variable's value.
- =============== ========================================
-
-
- In addition, two other magic binary files are provided
- in the top-level directory and are used for adding and
- removing variables:
-
- =============== ========================================
- new_var: Takes a "struct efi_variable" and
- instructs the EFI firmware to create a
- new variable.
-
- del_var: Takes a "struct efi_variable" and
- instructs the EFI firmware to remove any
- variable that has a matching vendor GUID
- and variable key name.
- =============== ========================================
diff --git a/Documentation/ABI/stable/sysfs-kernel-time-aux-clocks b/Documentation/ABI/stable/sysfs-kernel-time-aux-clocks
new file mode 100644
index 000000000000..825508f42af6
--- /dev/null
+++ b/Documentation/ABI/stable/sysfs-kernel-time-aux-clocks
@@ -0,0 +1,5 @@
+What: /sys/kernel/time/aux_clocks/<ID>/enable
+Date: May 2025
+Contact: Thomas Gleixner <tglx@linutronix.de>
+Description:
+ Controls the enablement of auxiliary clock timekeepers.
diff --git a/Documentation/ABI/stable/sysfs-platform-wmi-bmof b/Documentation/ABI/stable/sysfs-platform-wmi-bmof
new file mode 100644
index 000000000000..2881244e3f09
--- /dev/null
+++ b/Documentation/ABI/stable/sysfs-platform-wmi-bmof
@@ -0,0 +1,7 @@
+What: /sys/bus/wmi/devices/05901221-D566-11D1-B2F0-00A0C9062910[-X]/bmof
+Date: Jun 2017
+KernelVersion: 4.13
+Description:
+ Binary MOF metadata used to describe the details of available ACPI WMI interfaces.
+
+ See Documentation/wmi/devices/wmi-bmof.rst for details.
diff --git a/Documentation/ABI/stable/vdso b/Documentation/ABI/stable/vdso
index 951838d42781..85dbb6a160df 100644
--- a/Documentation/ABI/stable/vdso
+++ b/Documentation/ABI/stable/vdso
@@ -9,9 +9,11 @@ maps an ELF DSO into that program's address space. This DSO is called
the vDSO and it often contains useful and highly-optimized alternatives
to real syscalls.
-These functions are called just like ordinary C function according to
-your platform's ABI. Call them from a sensible context. (For example,
-if you set CS on x86 to something strange, the vDSO functions are
+These functions are called according to your platform's ABI. On many
+platforms they are called just like ordinary C function. On other platforms
+(ex: powerpc) they are called with the same convention as system calls which
+is different from ordinary C functions. Call them from a sensible context.
+(For example, if you set CS on x86 to something strange, the vDSO functions are
within their rights to crash.) In addition, if you pass a bad
pointer to a vDSO function, you might get SIGSEGV instead of -EFAULT.
diff --git a/Documentation/ABI/testing/configfs-tsm-report b/Documentation/ABI/testing/configfs-tsm-report
new file mode 100644
index 000000000000..534408bc1408
--- /dev/null
+++ b/Documentation/ABI/testing/configfs-tsm-report
@@ -0,0 +1,145 @@
+What: /sys/kernel/config/tsm/report/$name/inblob
+Date: September, 2023
+KernelVersion: v6.7
+Contact: linux-coco@lists.linux.dev
+Description:
+ (WO) Up to 64 bytes of user specified binary data. For replay
+ protection this should include a nonce, but the kernel does not
+ place any restrictions on the content.
+
+What: /sys/kernel/config/tsm/report/$name/outblob
+Date: September, 2023
+KernelVersion: v6.7
+Contact: linux-coco@lists.linux.dev
+Description:
+ (RO) Binary attestation report generated from @inblob and other
+ options The format of the report is implementation specific
+ where the implementation is conveyed via the @provider
+ attribute.
+
+What: /sys/kernel/config/tsm/report/$name/auxblob
+Date: October, 2023
+KernelVersion: v6.7
+Contact: linux-coco@lists.linux.dev
+Description:
+ (RO) Optional supplemental data that a TSM may emit, visibility
+ of this attribute depends on TSM, and may be empty if no
+ auxiliary data is available.
+
+ When @provider is "sev_guest" this file contains the
+ "cert_table" from SEV-ES Guest-Hypervisor Communication Block
+ Standardization v2.03 Section 4.1.8.1 MSG_REPORT_REQ.
+ https://www.amd.com/content/dam/amd/en/documents/epyc-technical-docs/specifications/56421.pdf
+
+What: /sys/kernel/config/tsm/report/$name/manifestblob
+Date: January, 2024
+KernelVersion: v6.10
+Contact: linux-coco@lists.linux.dev
+Description:
+ (RO) Optional supplemental data that a TSM may emit, visibility
+ of this attribute depends on TSM, and may be empty if no
+ manifest data is available.
+
+ See 'service_provider' for information on the format of the
+ manifest blob.
+
+What: /sys/kernel/config/tsm/report/$name/provider
+Date: September, 2023
+KernelVersion: v6.7
+Contact: linux-coco@lists.linux.dev
+Description:
+ (RO) A name for the format-specification of @outblob like
+ "sev_guest" [1] or "tdx_guest" [2] in the near term, or a
+ common standard format in the future.
+
+ [1]: SEV Secure Nested Paging Firmware ABI Specification
+ Revision 1.55 Table 22
+ https://www.amd.com/content/dam/amd/en/documents/epyc-technical-docs/specifications/56860.pdf
+
+ [2]: Intel® Trust Domain Extensions Data Center Attestation
+ Primitives : Quote Generation Library and Quote Verification
+ Library Revision 0.8 Appendix 4,5
+ https://download.01.org/intel-sgx/latest/dcap-latest/linux/docs/Intel_TDX_DCAP_Quoting_Library_API.pdf
+
+What: /sys/kernel/config/tsm/report/$name/generation
+Date: September, 2023
+KernelVersion: v6.7
+Contact: linux-coco@lists.linux.dev
+Description:
+ (RO) The value in this attribute increments each time @inblob or
+ any option is written. Userspace can detect conflicts by
+ checking generation before writing to any attribute and making
+ sure the number of writes matches expectations after reading
+ @outblob, or it can prevent conflicts by creating a report
+ instance per requesting context.
+
+What: /sys/kernel/config/tsm/report/$name/privlevel
+Date: September, 2023
+KernelVersion: v6.7
+Contact: linux-coco@lists.linux.dev
+Description:
+ (WO) Attribute is visible if a TSM implementation provider
+ supports the concept of attestation reports for TVMs running at
+ different privilege levels, like SEV-SNP "VMPL", specify the
+ privilege level via this attribute. The minimum acceptable
+ value is conveyed via @privlevel_floor and the maximum
+ acceptable value is TSM_PRIVLEVEL_MAX (3).
+
+What: /sys/kernel/config/tsm/report/$name/privlevel_floor
+Date: September, 2023
+KernelVersion: v6.7
+Contact: linux-coco@lists.linux.dev
+Description:
+ (RO) Indicates the minimum permissible value that can be written
+ to @privlevel.
+
+What: /sys/kernel/config/tsm/report/$name/service_provider
+Date: January, 2024
+KernelVersion: v6.10
+Contact: linux-coco@lists.linux.dev
+Description:
+ (WO) Attribute is visible if a TSM implementation provider
+ supports the concept of attestation reports from a service
+ provider for TVMs, like SEV-SNP running under an SVSM.
+ Specifying the service provider via this attribute will create
+ an attestation report as specified by the service provider.
+ The only currently supported service provider is "svsm".
+
+ For the "svsm" service provider, see the Secure VM Service Module
+ for SEV-SNP Guests v1.00 Section 7. For the doc, search for
+ "site:amd.com "Secure VM Service Module for SEV-SNP
+ Guests", docID: 58019"
+
+What: /sys/kernel/config/tsm/report/$name/service_guid
+Date: January, 2024
+KernelVersion: v6.10
+Contact: linux-coco@lists.linux.dev
+Description:
+ (WO) Attribute is visible if a TSM implementation provider
+ supports the concept of attestation reports from a service
+ provider for TVMs, like SEV-SNP running under an SVSM.
+ Specifying an empty/null GUID (00000000-0000-0000-0000-000000)
+ requests all active services within the service provider be
+ part of the attestation report. Specifying a GUID request
+ an attestation report of just the specified service using the
+ manifest form specified by the service_manifest_version
+ attribute.
+
+ See 'service_provider' for information on the format of the
+ service guid.
+
+What: /sys/kernel/config/tsm/report/$name/service_manifest_version
+Date: January, 2024
+KernelVersion: v6.10
+Contact: linux-coco@lists.linux.dev
+Description:
+ (WO) Attribute is visible if a TSM implementation provider
+ supports the concept of attestation reports from a service
+ provider for TVMs, like SEV-SNP running under an SVSM.
+ Indicates the service manifest version requested for the
+ attestation report (default 0). If this field is not set by
+ the user, the default manifest version of the service (the
+ service's initial/first manifest version) is returned.
+
+ See 'service_provider' for information on the format of the
+ service manifest version.
diff --git a/Documentation/ABI/testing/configfs-usb-gadget-acm b/Documentation/ABI/testing/configfs-usb-gadget-acm
index d21092d75a05..25e68be9eb66 100644
--- a/Documentation/ABI/testing/configfs-usb-gadget-acm
+++ b/Documentation/ABI/testing/configfs-usb-gadget-acm
@@ -6,3 +6,10 @@ Description:
This item contains just one readonly attribute: port_num.
It contains the port number of the /dev/ttyGS<n> device
associated with acm function's instance "name".
+
+What: /config/usb-gadget/gadget/functions/acm.name/protocol
+Date: Aug 2024
+KernelVersion: 6.13
+Description:
+ Reported bInterfaceProtocol for the ACM device. For legacy
+ reasons, this defaults to 1 (USB_CDC_ACM_PROTO_AT_V25TER).
diff --git a/Documentation/ABI/testing/configfs-usb-gadget-ffs b/Documentation/ABI/testing/configfs-usb-gadget-ffs
index e39b27653c65..bf8936ff6d38 100644
--- a/Documentation/ABI/testing/configfs-usb-gadget-ffs
+++ b/Documentation/ABI/testing/configfs-usb-gadget-ffs
@@ -4,6 +4,14 @@ KernelVersion: 3.13
Description: The purpose of this directory is to create and remove it.
A corresponding USB function instance is created/removed.
- There are no attributes here.
- All parameters are set through FunctionFS.
+ All attributes are read only:
+
+ ============= ============================================
+ ready 1 if the function is ready to be used, E.G.
+ if userspace has written descriptors and
+ strings to ep0, so the gadget can be
+ enabled - 0 otherwise.
+ ============= ============================================
+
+ All other parameters are set through FunctionFS.
diff --git a/Documentation/ABI/testing/configfs-usb-gadget-midi2 b/Documentation/ABI/testing/configfs-usb-gadget-midi2
new file mode 100644
index 000000000000..d76a52e2ca7f
--- /dev/null
+++ b/Documentation/ABI/testing/configfs-usb-gadget-midi2
@@ -0,0 +1,54 @@
+What: /config/usb-gadget/gadget/functions/midi2.name
+Date: Jul 2023
+KernelVersion: 6.6
+Description:
+ The attributes:
+
+ ============ ===============================================
+ process_ump Flag to process UMP Stream messages (0 or 1)
+ static_block Flag for static blocks (0 or 1)
+ iface_name MIDI interface name string
+ ============ ===============================================
+
+What: /config/usb-gadget/gadget/functions/midi2.name/ep.number
+Date: Jul 2023
+KernelVersion: 6.6
+Description:
+ This group contains a UMP Endpoint configuration.
+ A new Endpoint starts from 0, and can be up to 3.
+
+ The attributes:
+
+ ============= ===============================================
+ protocol_caps MIDI protocol capabilities (1, 2 or 3 for both)
+ protocol Default MIDI protocol (1 or 2)
+ ep_name UMP Endpoint name string
+ product_id Product ID string
+ manufacturer Manufacture ID (24 bit)
+ family Device family ID (16 bit)
+ model Device model ID (16 bit)
+ sw_revision Software Revision (32 bit)
+ ============= ===============================================
+
+What: /config/usb-gadget/gadget/functions/midi2.name/ep.number/block.number
+Date: Jul 2023
+KernelVersion: 6.6
+Description:
+ This group contains a UMP Function Block configuration.
+ A new block starts from 0, and can be up to 31.
+
+ The attributes:
+
+ ================= ==============================================
+ name Function Block name string
+ direction 1: input, 2: output, 3: bidirectional
+ first_group The first UMP Group number (0-15)
+ num_groups The number of groups in this FB (1-16)
+ midi1_first_group The first UMP Group number for MIDI 1.0 (0-15)
+ midi1_num_groups The number of groups for MIDI 1.0 (0-16)
+ ui_hint 0: unknown, 1: receiver, 2: sender, 3: both
+ midi_ci_version Supported MIDI-CI version number (8 bit)
+ is_midi1 Legacy MIDI 1.0 device (0, 1 or 2)
+ sysex8_streams Max number of SysEx8 streams (8 bit)
+ active Active FB flag (0 or 1)
+ ================= ==============================================
diff --git a/Documentation/ABI/testing/configfs-usb-gadget-uac1 b/Documentation/ABI/testing/configfs-usb-gadget-uac1
index c4ba92f004c3..64188a85592b 100644
--- a/Documentation/ABI/testing/configfs-usb-gadget-uac1
+++ b/Documentation/ABI/testing/configfs-usb-gadget-uac1
@@ -30,4 +30,12 @@ Description:
req_number the number of pre-allocated requests
for both capture and playback
function_name name of the interface
+ p_it_name playback input terminal name
+ p_it_ch_name playback channels name
+ p_ot_name playback output terminal name
+ p_fu_vol_name playback mute/volume functional unit name
+ c_it_name capture input terminal name
+ c_it_ch_name capture channels name
+ c_ot_name capture output terminal name
+ c_fu_vol_name capture mute/volume functional unit name
===================== =======================================
diff --git a/Documentation/ABI/testing/configfs-usb-gadget-uac2 b/Documentation/ABI/testing/configfs-usb-gadget-uac2
index 3371c39f651d..133e995c3e92 100644
--- a/Documentation/ABI/testing/configfs-usb-gadget-uac2
+++ b/Documentation/ABI/testing/configfs-usb-gadget-uac2
@@ -35,4 +35,17 @@ Description:
req_number the number of pre-allocated requests
for both capture and playback
function_name name of the interface
+ if_ctrl_name topology control name
+ clksrc_in_name input clock name
+ clksrc_out_name output clock name
+ p_it_name playback input terminal name
+ p_it_ch_name playback input first channel name
+ p_ot_name playback output terminal name
+ p_fu_vol_name playback mute/volume function unit name
+ c_it_name capture input terminal name
+ c_it_ch_name capture input first channel name
+ c_ot_name capture output terminal name
+ c_fu_vol_name capture mute/volume functional unit name
+ c_terminal_type code of the capture terminal type
+ p_terminal_type code of the playback terminal type
===================== =======================================
diff --git a/Documentation/ABI/testing/configfs-usb-gadget-uvc b/Documentation/ABI/testing/configfs-usb-gadget-uvc
index 4feb692c4c1d..b6720768d63d 100644
--- a/Documentation/ABI/testing/configfs-usb-gadget-uvc
+++ b/Documentation/ABI/testing/configfs-usb-gadget-uvc
@@ -342,6 +342,70 @@ Description: Specific uncompressed frame descriptors
support
========================= =====================================
+What: /config/usb-gadget/gadget/functions/uvc.name/streaming/framebased
+Date: Sept 2024
+KernelVersion: 5.15
+Description: Framebased format descriptors
+
+What: /config/usb-gadget/gadget/functions/uvc.name/streaming/framebased/name
+Date: Sept 2024
+KernelVersion: 5.15
+Description: Specific framebased format descriptors
+
+ ================== =======================================
+ bFormatIndex unique id for this format descriptor;
+ only defined after parent header is
+ linked into the streaming class;
+ read-only
+ bmaControls this format's data for bmaControls in
+ the streaming header
+ bmInterlaceFlags specifies interlace information,
+ read-only
+ bAspectRatioY the X dimension of the picture aspect
+ ratio, read-only
+ bAspectRatioX the Y dimension of the picture aspect
+ ratio, read-only
+ bDefaultFrameIndex optimum frame index for this stream
+ bBitsPerPixel number of bits per pixel used to
+ specify color in the decoded video
+ frame
+ guidFormat globally unique id used to identify
+ stream-encoding format
+ ================== =======================================
+
+What: /config/usb-gadget/gadget/functions/uvc.name/streaming/framebased/name/name
+Date: Sept 2024
+KernelVersion: 5.15
+Description: Specific framebased frame descriptors
+
+ ========================= =====================================
+ bFrameIndex unique id for this framedescriptor;
+ only defined after parent format is
+ linked into the streaming header;
+ read-only
+ dwFrameInterval indicates how frame interval can be
+ programmed; a number of values
+ separated by newline can be specified
+ dwDefaultFrameInterval the frame interval the device would
+ like to use as default
+ dwBytesPerLine Specifies the number of bytes per line
+ of video for packed fixed frame size
+ formats, allowing the receiver to
+ perform stride alignment of the video.
+ If the bVariableSize value (above) is
+ TRUE (1), or if the format does not
+ permit such alignment, this value shall
+ be set to zero (0).
+ dwMaxBitRate the maximum bit rate at the shortest
+ frame interval in bps
+ dwMinBitRate the minimum bit rate at the longest
+ frame interval in bps
+ wHeight height of decoded bitmap frame in px
+ wWidth width of decoded bitmam frame in px
+ bmCapabilities still image support, fixed frame-rate
+ support
+ ========================= =====================================
+
What: /config/usb-gadget/gadget/functions/uvc.name/streaming/header
Date: Dec 2014
KernelVersion: 4.0
diff --git a/Documentation/ABI/testing/debugfs-alienware-wmi b/Documentation/ABI/testing/debugfs-alienware-wmi
new file mode 100644
index 000000000000..c7f525d6baac
--- /dev/null
+++ b/Documentation/ABI/testing/debugfs-alienware-wmi
@@ -0,0 +1,64 @@
+What: /sys/kernel/debug/alienware-wmi-<wmi_device_name>/system_description
+Date: March 2025
+KernelVersion: 6.15
+Contact: Kurt Borja <kuurtb@gmail.com>
+Description:
+ This file exposes the raw ``system_description`` number reported
+ by the WMAX device.
+
+ Only present on devices with the AWCC interface.
+
+ See Documentation/admin-guide/laptops/alienware-wmi.rst for
+ details.
+
+ RO
+
+What: /sys/kernel/debug/alienware-wmi-<wmi_device_name>/hwmon_data
+Date: March 2025
+KernelVersion: 6.15
+Contact: Kurt Borja <kuurtb@gmail.com>
+Description:
+ This file exposes HWMON private data.
+
+ Includes fan sensor count, temperature sensor count, internal
+ fan IDs and internal temp IDs.
+
+ See Documentation/admin-guide/laptops/alienware-wmi.rst for
+ details.
+
+ RO
+
+What: /sys/kernel/debug/alienware-wmi-<wmi_device_name>/pprof_data
+Date: March 2025
+KernelVersion: 6.15
+Contact: Kurt Borja <kuurtb@gmail.com>
+Description:
+ This file exposes Platform Profile private data.
+
+ Includes internal mapping to platform profiles and thermal
+ profile IDs.
+
+ See Documentation/admin-guide/laptops/alienware-wmi.rst for
+ details.
+
+ RO
+
+What: /sys/kernel/debug/alienware-wmi-<wmi_device_name>/gpio_ctl/total_gpios
+Date: May 2025
+KernelVersion: 6.16
+Contact: Kurt Borja <kuurtb@gmail.com>
+Description:
+ Total number of GPIO pins reported by the device.
+
+ RO
+
+What: /sys/kernel/debug/alienware-wmi-<wmi_device_name>/gpio_ctl/pinX
+Date: May 2025
+KernelVersion: 6.16
+Contact: Kurt Borja <kuurtb@gmail.com>
+Description:
+ This file controls GPIO pin X status.
+
+ See Documentation/wmi/devices/alienware-wmi.rst for details.
+
+ RW
diff --git a/Documentation/ABI/testing/debugfs-amd-iommu b/Documentation/ABI/testing/debugfs-amd-iommu
new file mode 100644
index 000000000000..5621a66aa693
--- /dev/null
+++ b/Documentation/ABI/testing/debugfs-amd-iommu
@@ -0,0 +1,131 @@
+What: /sys/kernel/debug/iommu/amd/iommu<x>/mmio
+Date: January 2025
+Contact: Dheeraj Kumar Srivastava <dheerajkumar.srivastava@amd.com>
+Description:
+ This file provides read/write access for user input. Users specify the
+ MMIO register offset for iommu<x>, and the file outputs the corresponding
+ MMIO register value of iommu<x>
+
+ Example::
+
+ $ echo "0x18" > /sys/kernel/debug/iommu/amd/iommu00/mmio
+ $ cat /sys/kernel/debug/iommu/amd/iommu00/mmio
+
+ Output::
+
+ Offset:0x18 Value:0x000c22000003f48d
+
+What: /sys/kernel/debug/iommu/amd/iommu<x>/capability
+Date: January 2025
+Contact: Dheeraj Kumar Srivastava <dheerajkumar.srivastava@amd.com>
+Description:
+ This file provides read/write access for user input. Users specify the
+ capability register offset for iommu<x>, and the file outputs the
+ corresponding capability register value of iommu<x>.
+
+ Example::
+
+ $ echo "0x10" > /sys/kernel/debug/iommu/amd/iommu00/capability
+ $ cat /sys/kernel/debug/iommu/amd/iommu00/capability
+
+ Output::
+
+ Offset:0x10 Value:0x00203040
+
+What: /sys/kernel/debug/iommu/amd/iommu<x>/cmdbuf
+Date: January 2025
+Contact: Dheeraj Kumar Srivastava <dheerajkumar.srivastava@amd.com>
+Description:
+ This file is a read-only output file containing iommu<x> command
+ buffer entries.
+
+ Examples::
+
+ $ cat /sys/kernel/debug/iommu/amd/iommu<x>/cmdbuf
+
+ Output::
+
+ CMD Buffer Head Offset:339 Tail Offset:339
+ 0: 00835001 10000001 00003c00 00000000
+ 1: 00000000 30000005 fffff003 7fffffff
+ 2: 00835001 10000001 00003c01 00000000
+ 3: 00000000 30000005 fffff003 7fffffff
+ 4: 00835001 10000001 00003c02 00000000
+ 5: 00000000 30000005 fffff003 7fffffff
+ 6: 00835001 10000001 00003c03 00000000
+ 7: 00000000 30000005 fffff003 7fffffff
+ 8: 00835001 10000001 00003c04 00000000
+ 9: 00000000 30000005 fffff003 7fffffff
+ 10: 00835001 10000001 00003c05 00000000
+ 11: 00000000 30000005 fffff003 7fffffff
+ [...]
+
+What: /sys/kernel/debug/iommu/amd/devid
+Date: January 2025
+Contact: Dheeraj Kumar Srivastava <dheerajkumar.srivastava@amd.com>
+Description:
+ This file provides read/write access for user input. Users specify the
+ device ID, which can be used to dump IOMMU data structures such as the
+ interrupt remapping table and device table.
+
+ Example:
+
+ 1.
+ ::
+
+ $ echo 0000:01:00.0 > /sys/kernel/debug/iommu/amd/devid
+ $ cat /sys/kernel/debug/iommu/amd/devid
+
+ Output::
+
+ 0000:01:00.0
+
+ 2.
+ ::
+
+ $ echo 01:00.0 > /sys/kernel/debug/iommu/amd/devid
+ $ cat /sys/kernel/debug/iommu/amd/devid
+
+ Output::
+
+ 0000:01:00.0
+
+What: /sys/kernel/debug/iommu/amd/devtbl
+Date: January 2025
+Contact: Dheeraj Kumar Srivastava <dheerajkumar.srivastava@amd.com>
+Description:
+ This file is a read-only output file containing the device table entry
+ for the device ID provided in /sys/kernel/debug/iommu/amd/devid.
+
+ Example::
+
+ $ cat /sys/kernel/debug/iommu/amd/devtbl
+
+ Output::
+
+ DeviceId QWORD[3] QWORD[2] QWORD[1] QWORD[0] iommu
+ 0000:01:00.0 0000000000000000 20000001373b8013 0000000000000038 6000000114d7b603 iommu3
+
+What: /sys/kernel/debug/iommu/amd/irqtbl
+Date: January 2025
+Contact: Dheeraj Kumar Srivastava <dheerajkumar.srivastava@amd.com>
+Description:
+ This file is a read-only output file containing valid IRT table entries
+ for the device ID provided in /sys/kernel/debug/iommu/amd/devid.
+
+ Example::
+
+ $ cat /sys/kernel/debug/iommu/amd/irqtbl
+
+ Output::
+
+ DeviceId 0000:01:00.0
+ IRT[0000] 0000000000000020 0000000000000241
+ IRT[0001] 0000000000000020 0000000000000841
+ IRT[0002] 0000000000000020 0000000000002041
+ IRT[0003] 0000000000000020 0000000000008041
+ IRT[0004] 0000000000000020 0000000000020041
+ IRT[0005] 0000000000000020 0000000000080041
+ IRT[0006] 0000000000000020 0000000000200041
+ IRT[0007] 0000000000000020 0000000000800041
+ [...]
diff --git a/Documentation/ABI/testing/debugfs-cec-error-inj b/Documentation/ABI/testing/debugfs-cec-error-inj
index 8debcb08a3b5..c512f71bba8e 100644
--- a/Documentation/ABI/testing/debugfs-cec-error-inj
+++ b/Documentation/ABI/testing/debugfs-cec-error-inj
@@ -1,6 +1,6 @@
What: /sys/kernel/debug/cec/*/error-inj
Date: March 2018
-Contact: Hans Verkuil <hverkuil-cisco@xs4all.nl>
+Contact: Hans Verkuil <hverkuil@kernel.org>
Description:
The CEC Framework allows for CEC error injection commands through
diff --git a/Documentation/ABI/testing/debugfs-cxl b/Documentation/ABI/testing/debugfs-cxl
index fe61d372e3fa..2989d4da96c1 100644
--- a/Documentation/ABI/testing/debugfs-cxl
+++ b/Documentation/ABI/testing/debugfs-cxl
@@ -14,12 +14,27 @@ Description:
event to its internal Informational Event log, updates the
Event Status register, and if configured, interrupts the host.
It is not an error to inject poison into an address that
- already has poison present and no error is returned. The
- inject_poison attribute is only visible for devices supporting
- the capability.
+ already has poison present and no error is returned. If the
+ device returns 'Inject Poison Limit Reached' an -EBUSY error
+ is returned to the user. The inject_poison attribute is only
+ visible for devices supporting the capability.
+ TEST-ONLY INTERFACE: This interface is intended for testing
+ and validation purposes only. It is not a data repair mechanism
+ and should never be used on production systems or live data.
-What: /sys/kernel/debug/memX/clear_poison
+ DATA LOSS RISK: For CXL persistent memory (PMEM) devices,
+ poison injection can result in permanent data loss. Injected
+ poison may render data permanently inaccessible even after
+ clearing, as the clear operation writes zeros and does not
+ recover original data.
+
+ SYSTEM STABILITY RISK: For volatile memory, poison injection
+ can cause kernel crashes, system instability, or unpredictable
+ behavior if the poisoned addresses are accessed by running code
+ or critical kernel structures.
+
+What: /sys/kernel/debug/cxl/memX/clear_poison
Date: April, 2023
KernelVersion: v6.4
Contact: linux-cxl@vger.kernel.org
@@ -33,3 +48,110 @@ Description:
device cannot clear poison from the address, -ENXIO is returned.
The clear_poison attribute is only visible for devices
supporting the capability.
+
+ TEST-ONLY INTERFACE: This interface is intended for testing
+ and validation purposes only. It is not a data repair mechanism
+ and should never be used on production systems or live data.
+
+ CLEAR IS NOT DATA RECOVERY: This operation writes zeros to the
+ specified address range and removes the address from the poison
+ list. It does NOT recover or restore original data that may have
+ been present before poison injection. Any original data at the
+ cleared address is permanently lost and replaced with zeros.
+
+ CLEAR IS NOT A REPAIR MECHANISM: This interface is for testing
+ purposes only and should not be used as a data repair tool.
+ Clearing poison is fundamentally different from data recovery
+ or error correction.
+
+What: /sys/kernel/debug/cxl/regionX/inject_poison
+Date: August, 2025
+Contact: linux-cxl@vger.kernel.org
+Description:
+ (WO) When a Host Physical Address (HPA) is written to this
+ attribute, the region driver translates it to a Device
+ Physical Address (DPA) and identifies the corresponding
+ memdev. It then sends an inject poison command to that memdev
+ at the translated DPA. Refer to the memdev ABI entry at:
+ /sys/kernel/debug/cxl/memX/inject_poison for the detailed
+ behavior. This attribute is only visible if all memdevs
+ participating in the region support both inject and clear
+ poison commands.
+
+ TEST-ONLY INTERFACE: This interface is intended for testing
+ and validation purposes only. It is not a data repair mechanism
+ and should never be used on production systems or live data.
+
+ DATA LOSS RISK: For CXL persistent memory (PMEM) devices,
+ poison injection can result in permanent data loss. Injected
+ poison may render data permanently inaccessible even after
+ clearing, as the clear operation writes zeros and does not
+ recover original data.
+
+ SYSTEM STABILITY RISK: For volatile memory, poison injection
+ can cause kernel crashes, system instability, or unpredictable
+ behavior if the poisoned addresses are accessed by running code
+ or critical kernel structures.
+
+What: /sys/kernel/debug/cxl/regionX/clear_poison
+Date: August, 2025
+Contact: linux-cxl@vger.kernel.org
+Description:
+ (WO) When a Host Physical Address (HPA) is written to this
+ attribute, the region driver translates it to a Device
+ Physical Address (DPA) and identifies the corresponding
+ memdev. It then sends a clear poison command to that memdev
+ at the translated DPA. Refer to the memdev ABI entry at:
+ /sys/kernel/debug/cxl/memX/clear_poison for the detailed
+ behavior. This attribute is only visible if all memdevs
+ participating in the region support both inject and clear
+ poison commands.
+
+ TEST-ONLY INTERFACE: This interface is intended for testing
+ and validation purposes only. It is not a data repair mechanism
+ and should never be used on production systems or live data.
+
+ CLEAR IS NOT DATA RECOVERY: This operation writes zeros to the
+ specified address range and removes the address from the poison
+ list. It does NOT recover or restore original data that may have
+ been present before poison injection. Any original data at the
+ cleared address is permanently lost and replaced with zeros.
+
+ CLEAR IS NOT A REPAIR MECHANISM: This interface is for testing
+ purposes only and should not be used as a data repair tool.
+ Clearing poison is fundamentally different from data recovery
+ or error correction.
+
+What: /sys/kernel/debug/cxl/einj_types
+Date: January, 2024
+KernelVersion: v6.9
+Contact: linux-cxl@vger.kernel.org
+Description:
+ (RO) Prints the CXL protocol error types made available by
+ the platform in the format:
+
+ 0x<error number> <error type>
+
+ The possible error types are (as of ACPI v6.5):
+
+ 0x1000 CXL.cache Protocol Correctable
+ 0x2000 CXL.cache Protocol Uncorrectable non-fatal
+ 0x4000 CXL.cache Protocol Uncorrectable fatal
+ 0x8000 CXL.mem Protocol Correctable
+ 0x10000 CXL.mem Protocol Uncorrectable non-fatal
+ 0x20000 CXL.mem Protocol Uncorrectable fatal
+
+ The <error number> can be written to einj_inject to inject
+ <error type> into a chosen dport.
+
+What: /sys/kernel/debug/cxl/$dport_dev/einj_inject
+Date: January, 2024
+KernelVersion: v6.9
+Contact: linux-cxl@vger.kernel.org
+Description:
+ (WO) Writing an integer to this file injects the corresponding
+ CXL protocol error into $dport_dev ($dport_dev will be a device
+ name from /sys/bus/pci/devices). The integer to type mapping for
+ injection can be found by reading from einj_types. If the dport
+ was enumerated in RCH mode, a CXL 1.1 error is injected, otherwise
+ a CXL 2.0 error is injected.
diff --git a/Documentation/ABI/testing/debugfs-dell-wmi-ddv b/Documentation/ABI/testing/debugfs-dell-wmi-ddv
index fbcc5d6f7388..81cfc788be15 100644
--- a/Documentation/ABI/testing/debugfs-dell-wmi-ddv
+++ b/Documentation/ABI/testing/debugfs-dell-wmi-ddv
@@ -3,19 +3,32 @@ Date: September 2022
KernelVersion: 6.1
Contact: Armin Wolf <W_Armin@gmx.de>
Description:
- This file contains the contents of the fan sensor information buffer,
- which contains fan sensor entries and a terminating character (0xFF).
+ This file contains the contents of the fan sensor information
+ buffer, which contains fan sensor entries and a terminating
+ character (0xFF).
- Each fan sensor entry consists of three bytes with an unknown meaning,
- interested people may use this file for reverse-engineering.
+ Each fan sensor entry contains:
+
+ - fan type (single byte)
+ - fan speed in RPM (two bytes, little endian)
+
+ See Documentation/wmi/devices/dell-wmi-ddv.rst for details.
What: /sys/kernel/debug/dell-wmi-ddv-<wmi_device_name>/thermal_sensor_information
Date: September 2022
KernelVersion: 6.1
Contact: Armin Wolf <W_Armin@gmx.de>
Description:
- This file contains the contents of the thermal sensor information buffer,
- which contains thermal sensor entries and a terminating character (0xFF).
+ This file contains the contents of the thermal sensor information
+ buffer, which contains thermal sensor entries and a terminating
+ character (0xFF).
+
+ Each thermal sensor entry contains:
+
+ - thermal type (single byte)
+ - current temperature (single byte)
+ - min. temperature (single byte)
+ - max. temperature (single byte)
+ - unknown field (single byte)
- Each thermal sensor entry consists of five bytes with an unknown meaning,
- interested people may use this file for reverse-engineering.
+ See Documentation/wmi/devices/dell-wmi-ddv.rst for details.
diff --git a/Documentation/ABI/testing/debugfs-driver-habanalabs b/Documentation/ABI/testing/debugfs-driver-habanalabs
index 85f6d04f528b..3318a14f35b9 100644
--- a/Documentation/ABI/testing/debugfs-driver-habanalabs
+++ b/Documentation/ABI/testing/debugfs-driver-habanalabs
@@ -1,4 +1,4 @@
-What: /sys/kernel/debug/habanalabs/hl<n>/addr
+What: /sys/kernel/debug/accel/<parent_device>/addr
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
@@ -8,34 +8,34 @@ Description: Sets the device address to be used for read or write through
only when the IOMMU is disabled.
The acceptable value is a string that starts with "0x"
-What: /sys/kernel/debug/habanalabs/hl<n>/clk_gate
+What: /sys/kernel/debug/accel/<parent_device>/clk_gate
Date: May 2020
KernelVersion: 5.8
Contact: ogabbay@kernel.org
Description: This setting is now deprecated as clock gating is handled solely by the f/w
-What: /sys/kernel/debug/habanalabs/hl<n>/command_buffers
+What: /sys/kernel/debug/accel/<parent_device>/command_buffers
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
Description: Displays a list with information about the currently allocated
command buffers
-What: /sys/kernel/debug/habanalabs/hl<n>/command_submission
+What: /sys/kernel/debug/accel/<parent_device>/command_submission
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
Description: Displays a list with information about the currently active
command submissions
-What: /sys/kernel/debug/habanalabs/hl<n>/command_submission_jobs
+What: /sys/kernel/debug/accel/<parent_device>/command_submission_jobs
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
Description: Displays a list with detailed information about each JOB (CB) of
each active command submission
-What: /sys/kernel/debug/habanalabs/hl<n>/data32
+What: /sys/kernel/debug/accel/<parent_device>/data32
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
@@ -50,7 +50,7 @@ Description: Allows the root user to read or write directly through the
If the IOMMU is disabled, it also allows the root user to read
or write from the host a device VA of a host mapped memory
-What: /sys/kernel/debug/habanalabs/hl<n>/data64
+What: /sys/kernel/debug/accel/<parent_device>/data64
Date: Jan 2020
KernelVersion: 5.6
Contact: ogabbay@kernel.org
@@ -65,7 +65,7 @@ Description: Allows the root user to read or write 64 bit data directly
If the IOMMU is disabled, it also allows the root user to read
or write from the host a device VA of a host mapped memory
-What: /sys/kernel/debug/habanalabs/hl<n>/data_dma
+What: /sys/kernel/debug/accel/<parent_device>/data_dma
Date: Apr 2021
KernelVersion: 5.13
Contact: ogabbay@kernel.org
@@ -79,11 +79,11 @@ Description: Allows the root user to read from the device's internal
a very long time.
This interface doesn't support concurrency in the same device.
In GAUDI and GOYA, this action can cause undefined behavior
- in case the it is done while the device is executing user
+ in case it is done while the device is executing user
workloads.
Only supported on GAUDI at this stage.
-What: /sys/kernel/debug/habanalabs/hl<n>/device
+What: /sys/kernel/debug/accel/<parent_device>/device
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
@@ -91,14 +91,14 @@ Description: Enables the root user to set the device to specific state.
Valid values are "disable", "enable", "suspend", "resume".
User can read this property to see the valid values
-What: /sys/kernel/debug/habanalabs/hl<n>/device_release_watchdog_timeout
+What: /sys/kernel/debug/accel/<parent_device>/device_release_watchdog_timeout
Date: Oct 2022
KernelVersion: 6.2
Contact: ttayar@habana.ai
-Description: The watchdog timeout value in seconds for a device relese upon
+Description: The watchdog timeout value in seconds for a device release upon
certain error cases, after which the device is reset.
-What: /sys/kernel/debug/habanalabs/hl<n>/dma_size
+What: /sys/kernel/debug/accel/<parent_device>/dma_size
Date: Apr 2021
KernelVersion: 5.13
Contact: ogabbay@kernel.org
@@ -108,7 +108,7 @@ Description: Specify the size of the DMA transaction when using DMA to read
When the write is finished, the user can read the "data_dma"
blob
-What: /sys/kernel/debug/habanalabs/hl<n>/dump_razwi_events
+What: /sys/kernel/debug/accel/<parent_device>/dump_razwi_events
Date: Aug 2022
KernelVersion: 5.20
Contact: fkassabri@habana.ai
@@ -117,7 +117,7 @@ Description: Dumps all razwi events to dmesg if exist.
the routine will clear the status register.
Usage: cat dump_razwi_events
-What: /sys/kernel/debug/habanalabs/hl<n>/dump_security_violations
+What: /sys/kernel/debug/accel/<parent_device>/dump_security_violations
Date: Jan 2021
KernelVersion: 5.12
Contact: ogabbay@kernel.org
@@ -125,14 +125,14 @@ Description: Dumps all security violations to dmesg. This will also ack
all security violations meanings those violations will not be
dumped next time user calls this API
-What: /sys/kernel/debug/habanalabs/hl<n>/engines
+What: /sys/kernel/debug/accel/<parent_device>/engines
Date: Jul 2019
KernelVersion: 5.3
Contact: ogabbay@kernel.org
Description: Displays the status registers values of the device engines and
their derived idle status
-What: /sys/kernel/debug/habanalabs/hl<n>/i2c_addr
+What: /sys/kernel/debug/accel/<parent_device>/i2c_addr
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
@@ -140,7 +140,7 @@ Description: Sets I2C device address for I2C transaction that is generated
by the device's CPU, Not available when device is loaded with secured
firmware
-What: /sys/kernel/debug/habanalabs/hl<n>/i2c_bus
+What: /sys/kernel/debug/accel/<parent_device>/i2c_bus
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
@@ -148,7 +148,7 @@ Description: Sets I2C bus address for I2C transaction that is generated by
the device's CPU, Not available when device is loaded with secured
firmware
-What: /sys/kernel/debug/habanalabs/hl<n>/i2c_data
+What: /sys/kernel/debug/accel/<parent_device>/i2c_data
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
@@ -157,7 +157,7 @@ Description: Triggers an I2C transaction that is generated by the device's
reading from the file generates a read transaction, Not available
when device is loaded with secured firmware
-What: /sys/kernel/debug/habanalabs/hl<n>/i2c_len
+What: /sys/kernel/debug/accel/<parent_device>/i2c_len
Date: Dec 2021
KernelVersion: 5.17
Contact: obitton@habana.ai
@@ -165,7 +165,7 @@ Description: Sets I2C length in bytes for I2C transaction that is generated b
the device's CPU, Not available when device is loaded with secured
firmware
-What: /sys/kernel/debug/habanalabs/hl<n>/i2c_reg
+What: /sys/kernel/debug/accel/<parent_device>/i2c_reg
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
@@ -173,35 +173,35 @@ Description: Sets I2C register id for I2C transaction that is generated by
the device's CPU, Not available when device is loaded with secured
firmware
-What: /sys/kernel/debug/habanalabs/hl<n>/led0
+What: /sys/kernel/debug/accel/<parent_device>/led0
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
Description: Sets the state of the first S/W led on the device, Not available
when device is loaded with secured firmware
-What: /sys/kernel/debug/habanalabs/hl<n>/led1
+What: /sys/kernel/debug/accel/<parent_device>/led1
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
Description: Sets the state of the second S/W led on the device, Not available
when device is loaded with secured firmware
-What: /sys/kernel/debug/habanalabs/hl<n>/led2
+What: /sys/kernel/debug/accel/<parent_device>/led2
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
Description: Sets the state of the third S/W led on the device, Not available
when device is loaded with secured firmware
-What: /sys/kernel/debug/habanalabs/hl<n>/memory_scrub
+What: /sys/kernel/debug/accel/<parent_device>/memory_scrub
Date: May 2022
KernelVersion: 5.19
Contact: dhirschfeld@habana.ai
Description: Allows the root user to scrub the dram memory. The scrubbing
value can be set using the debugfs file memory_scrub_val.
-What: /sys/kernel/debug/habanalabs/hl<n>/memory_scrub_val
+What: /sys/kernel/debug/accel/<parent_device>/memory_scrub_val
Date: May 2022
KernelVersion: 5.19
Contact: dhirschfeld@habana.ai
@@ -209,7 +209,7 @@ Description: The value to which the dram will be set to when the user
scrubs the dram using 'memory_scrub' debugfs file and
the scrubbing value when using module param 'memory_scrub'
-What: /sys/kernel/debug/habanalabs/hl<n>/mmu
+What: /sys/kernel/debug/accel/<parent_device>/mmu
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
@@ -217,19 +217,19 @@ Description: Displays the hop values and physical address for a given ASID
and virtual address. The user should write the ASID and VA into
the file and then read the file to get the result.
e.g. to display info about VA 0x1000 for ASID 1 you need to do:
- echo "1 0x1000" > /sys/kernel/debug/habanalabs/hl0/mmu
+ echo "1 0x1000" > /sys/kernel/debug/accel/<parent_device>/mmu
-What: /sys/kernel/debug/habanalabs/hl<n>/mmu_error
+What: /sys/kernel/debug/accel/<parent_device>/mmu_error
Date: Mar 2021
KernelVersion: 5.12
Contact: fkassabri@habana.ai
Description: Check and display page fault or access violation mmu errors for
all MMUs specified in mmu_cap_mask.
e.g. to display error info for MMU hw cap bit 9, you need to do:
- echo "0x200" > /sys/kernel/debug/habanalabs/hl0/mmu_error
- cat /sys/kernel/debug/habanalabs/hl0/mmu_error
+ echo "0x200" > /sys/kernel/debug/accel/<parent_device>/mmu_error
+ cat /sys/kernel/debug/accel/<parent_device>/mmu_error
-What: /sys/kernel/debug/habanalabs/hl<n>/monitor_dump
+What: /sys/kernel/debug/accel/<parent_device>/monitor_dump
Date: Mar 2022
KernelVersion: 5.19
Contact: osharabi@habana.ai
@@ -243,7 +243,7 @@ Description: Allows the root user to dump monitors status from the device's
This interface doesn't support concurrency in the same device.
Only supported on GAUDI.
-What: /sys/kernel/debug/habanalabs/hl<n>/monitor_dump_trig
+What: /sys/kernel/debug/accel/<parent_device>/monitor_dump_trig
Date: Mar 2022
KernelVersion: 5.19
Contact: osharabi@habana.ai
@@ -253,14 +253,20 @@ Description: Triggers dump of monitor data. The value to trigger the operatio
When the write is finished, the user can read the "monitor_dump"
blob
-What: /sys/kernel/debug/habanalabs/hl<n>/set_power_state
+What: /sys/kernel/debug/accel/<parent_device>/server_type
+Date: Feb 2024
+KernelVersion: 6.11
+Contact: trisin@habana.ai
+Description: Exposes the device's server type, maps to enum hl_server_type.
+
+What: /sys/kernel/debug/accel/<parent_device>/set_power_state
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
Description: Sets the PCI power state. Valid values are "1" for D0 and "2"
for D3Hot
-What: /sys/kernel/debug/habanalabs/hl<n>/skip_reset_on_timeout
+What: /sys/kernel/debug/accel/<parent_device>/skip_reset_on_timeout
Date: Jun 2021
KernelVersion: 5.13
Contact: ynudelman@habana.ai
@@ -268,7 +274,7 @@ Description: Sets the skip reset on timeout option for the device. Value of
"0" means device will be reset in case some CS has timed out,
otherwise it will not be reset.
-What: /sys/kernel/debug/habanalabs/hl<n>/state_dump
+What: /sys/kernel/debug/accel/<parent_device>/state_dump
Date: Oct 2021
KernelVersion: 5.15
Contact: ynudelman@habana.ai
@@ -279,7 +285,7 @@ Description: Gets the state dump occurring on a CS timeout or failure.
Writing an integer X discards X state dumps, so that the
next read would return X+1-st newest state dump.
-What: /sys/kernel/debug/habanalabs/hl<n>/stop_on_err
+What: /sys/kernel/debug/accel/<parent_device>/stop_on_err
Date: Mar 2020
KernelVersion: 5.6
Contact: ogabbay@kernel.org
@@ -287,21 +293,21 @@ Description: Sets the stop-on_error option for the device engines. Value of
"0" is for disable, otherwise enable.
Relevant only for GOYA and GAUDI.
-What: /sys/kernel/debug/habanalabs/hl<n>/timeout_locked
+What: /sys/kernel/debug/accel/<parent_device>/timeout_locked
Date: Sep 2021
KernelVersion: 5.16
Contact: obitton@habana.ai
Description: Sets the command submission timeout value in seconds.
-What: /sys/kernel/debug/habanalabs/hl<n>/userptr
+What: /sys/kernel/debug/accel/<parent_device>/userptr
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
-Description: Displays a list with information about the currently user
+Description: Displays a list with information about the current user
pointers (user virtual addresses) that are pinned and mapped
to DMA addresses
-What: /sys/kernel/debug/habanalabs/hl<n>/userptr_lookup
+What: /sys/kernel/debug/accel/<parent_device>/userptr_lookup
Date: Oct 2021
KernelVersion: 5.15
Contact: ogabbay@kernel.org
@@ -309,7 +315,7 @@ Description: Allows to search for specific user pointers (user virtual
addresses) that are pinned and mapped to DMA addresses, and see
their resolution to the specific dma address.
-What: /sys/kernel/debug/habanalabs/hl<n>/vm
+What: /sys/kernel/debug/accel/<parent_device>/vm
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
diff --git a/Documentation/ABI/testing/debugfs-driver-qat b/Documentation/ABI/testing/debugfs-driver-qat
new file mode 100644
index 000000000000..3f1efbbad6ca
--- /dev/null
+++ b/Documentation/ABI/testing/debugfs-driver-qat
@@ -0,0 +1,109 @@
+What: /sys/kernel/debug/qat_<device>_<BDF>/fw_counters
+Date: November 2023
+KernelVersion: 6.6
+Contact: qat-linux@intel.com
+Description: (RO) Read returns the number of requests sent to the FW and the number of responses
+ received from the FW for each Acceleration Engine
+ Reported firmware counters::
+
+ <N>: Number of requests sent from Acceleration Engine N to FW and responses
+ Acceleration Engine N received from FW
+
+What: /sys/kernel/debug/qat_<device>_<BDF>/heartbeat/config
+Date: November 2023
+KernelVersion: 6.6
+Contact: qat-linux@intel.com
+Description: (RW) Read returns value of the Heartbeat update period.
+ Write to the file changes this period value.
+
+ This period should reflect planned polling interval of device
+ health status. High frequency Heartbeat monitoring wastes CPU cycles
+ but minimizes the customer’s system downtime. Also, if there are
+ large service requests that take some time to complete, high frequency
+ Heartbeat monitoring could result in false reports of unresponsiveness
+ and in those cases, period needs to be increased.
+
+ This parameter is effective only for c3xxx, c62x, dh895xcc devices.
+ 4xxx has this value internally fixed to 200ms.
+
+ Default value is set to 500. Minimal allowed value is 200.
+ All values are expressed in milliseconds.
+
+What: /sys/kernel/debug/qat_<device>_<BDF>/heartbeat/queries_failed
+Date: November 2023
+KernelVersion: 6.6
+Contact: qat-linux@intel.com
+Description: (RO) Read returns the number of times the device became unresponsive.
+
+ Attribute returns value of the counter which is incremented when
+ status query results negative.
+
+What: /sys/kernel/debug/qat_<device>_<BDF>/heartbeat/queries_sent
+Date: November 2023
+KernelVersion: 6.6
+Contact: qat-linux@intel.com
+Description: (RO) Read returns the number of times the control process checked
+ if the device is responsive.
+
+ Attribute returns value of the counter which is incremented on
+ every status query.
+
+What: /sys/kernel/debug/qat_<device>_<BDF>/heartbeat/status
+Date: November 2023
+KernelVersion: 6.6
+Contact: qat-linux@intel.com
+Description: (RO) Read returns the device health status.
+
+ Returns 0 when device is healthy or -1 when is unresponsive
+ or the query failed to send.
+
+ The driver does not monitor for Heartbeat. It is left for a user
+ to poll the status periodically.
+
+What: /sys/kernel/debug/qat_<device>_<BDF>/pm_status
+Date: January 2024
+KernelVersion: 6.7
+Contact: qat-linux@intel.com
+Description: (RO) Read returns power management information specific to the
+ QAT device.
+
+ This attribute is only available for qat_4xxx and qat_6xxx devices.
+
+What: /sys/kernel/debug/qat_<device>_<BDF>/cnv_errors
+Date: January 2024
+KernelVersion: 6.7
+Contact: qat-linux@intel.com
+Description: (RO) Read returns, for each Acceleration Engine (AE), the number
+ of errors and the type of the last error detected by the device
+ when performing verified compression.
+ Reported counters::
+
+ <N>: Number of Compress and Verify (CnV) errors and type
+ of the last CnV error detected by Acceleration
+ Engine N.
+
+What: /sys/kernel/debug/qat_<device>_<BDF>/heartbeat/inject_error
+Date: March 2024
+KernelVersion: 6.8
+Contact: qat-linux@intel.com
+Description: (WO) Write to inject an error that simulates an heartbeat
+ failure. This is to be used for testing purposes.
+
+ After writing this file, the driver stops arbitration on a
+ random engine and disables the fetching of heartbeat counters.
+ If a workload is running on the device, a job submitted to the
+ accelerator might not get a response and a read of the
+ `heartbeat/status` attribute might report -1, i.e. device
+ unresponsive.
+ The error is unrecoverable thus the device must be restarted to
+ restore its functionality.
+
+ This attribute is available only when the kernel is built with
+ CONFIG_CRYPTO_DEV_QAT_ERROR_INJECTION=y.
+
+ A write of 1 enables error injection.
+
+ The following example shows how to enable error injection::
+
+ # cd /sys/kernel/debug/qat_<device>_<BDF>
+ # echo 1 > heartbeat/inject_error
diff --git a/Documentation/ABI/testing/debugfs-driver-qat_telemetry b/Documentation/ABI/testing/debugfs-driver-qat_telemetry
new file mode 100644
index 000000000000..06097ee0f154
--- /dev/null
+++ b/Documentation/ABI/testing/debugfs-driver-qat_telemetry
@@ -0,0 +1,259 @@
+What: /sys/kernel/debug/qat_<device>_<BDF>/telemetry/control
+Date: March 2024
+KernelVersion: 6.8
+Contact: qat-linux@intel.com
+Description: (RW) Enables/disables the reporting of telemetry metrics.
+
+ Allowed values to write:
+ ========================
+ * 0: disable telemetry
+ * 1: enable telemetry
+ * 2, 3, 4: enable telemetry and calculate minimum, maximum
+ and average for each counter over 2, 3 or 4 samples
+
+ Returned values:
+ ================
+ * 1-4: telemetry is enabled and running
+ * 0: telemetry is disabled
+
+ Example.
+
+ Writing '3' to this file starts the collection of
+ telemetry metrics. Samples are collected every second and
+ stored in a circular buffer of size 3. These values are then
+ used to calculate the minimum, maximum and average for each
+ counter. After enabling, counters can be retrieved through
+ the ``device_data`` file::
+
+ echo 3 > /sys/kernel/debug/qat_4xxx_0000:6b:00.0/telemetry/control
+
+ Writing '0' to this file stops the collection of telemetry
+ metrics::
+
+ echo 0 > /sys/kernel/debug/qat_4xxx_0000:6b:00.0/telemetry/control
+
+ This attribute is only available for qat_4xxx and qat_6xxx devices.
+
+What: /sys/kernel/debug/qat_<device>_<BDF>/telemetry/device_data
+Date: March 2024
+KernelVersion: 6.8
+Contact: qat-linux@intel.com
+Description: (RO) Reports device telemetry counters.
+ Reads report metrics about performance and utilization of
+ a QAT device:
+
+ ======================= ========================================
+ Field Description
+ ======================= ========================================
+ sample_cnt number of acquisitions of telemetry data
+ from the device. Reads are performed
+ every 1000 ms.
+ pci_trans_cnt number of PCIe partial transactions
+ max_rd_lat maximum logged read latency [ns] (could
+ be any read operation)
+ rd_lat_acc_avg average read latency [ns]
+ max_gp_lat max get to put latency [ns] (only takes
+ samples for AE0)
+ gp_lat_acc_avg average get to put latency [ns]
+ bw_in PCIe, write bandwidth [Mbps]
+ bw_out PCIe, read bandwidth [Mbps]
+ re_acc_avg average ring empty time [ns]
+ at_page_req_lat_avg Address Translator(AT), average page
+ request latency [ns]
+ at_trans_lat_avg AT, average page translation latency [ns]
+ at_max_tlb_used AT, maximum uTLB used
+ util_cpr<N> utilization of Compression slice N [%]
+ exec_cpr<N> execution count of Compression slice N
+ util_xlt<N> utilization of Translator slice N [%]
+ exec_xlt<N> execution count of Translator slice N
+ util_dcpr<N> utilization of Decompression slice N [%]
+ exec_dcpr<N> execution count of Decompression slice N
+ util_cnv<N> utilization of Compression and verify slice N [%]
+ exec_cnv<N> execution count of Compression and verify slice N
+ util_dcprz<N> utilization of Decompression slice N [%]
+ exec_dcprz<N> execution count of Decompression slice N
+ util_pke<N> utilization of PKE N [%]
+ exec_pke<N> execution count of PKE N
+ util_ucs<N> utilization of UCS slice N [%]
+ exec_ucs<N> execution count of UCS slice N
+ util_wat<N> utilization of Wireless Authentication
+ slice N [%]
+ exec_wat<N> execution count of Wireless Authentication
+ slice N
+ util_wcp<N> utilization of Wireless Cipher slice N [%]
+ exec_wcp<N> execution count of Wireless Cipher slice N
+ util_cph<N> utilization of Cipher slice N [%]
+ exec_cph<N> execution count of Cipher slice N
+ util_ath<N> utilization of Authentication slice N [%]
+ exec_ath<N> execution count of Authentication slice N
+ cmdq_wait_cnv<N> wait time for cmdq N to get Compression and verify
+ slice ownership
+ cmdq_exec_cnv<N> Compression and verify slice execution time while
+ owned by cmdq N
+ cmdq_drain_cnv<N> time taken for cmdq N to release Compression and
+ verify slice ownership
+ cmdq_wait_dcprz<N> wait time for cmdq N to get Decompression
+ slice N ownership
+ cmdq_exec_dcprz<N> Decompression slice execution time while
+ owned by cmdq N
+ cmdq_drain_dcprz<N> time taken for cmdq N to release Decompression
+ slice ownership
+ cmdq_wait_pke<N> wait time for cmdq N to get PKE slice ownership
+ cmdq_exec_pke<N> PKE slice execution time while owned by cmdq N
+ cmdq_drain_pke<N> time taken for cmdq N to release PKE slice
+ ownership
+ cmdq_wait_ucs<N> wait time for cmdq N to get UCS slice ownership
+ cmdq_exec_ucs<N> UCS slice execution time while owned by cmdq N
+ cmdq_drain_ucs<N> time taken for cmdq N to release UCS slice
+ ownership
+ cmdq_wait_ath<N> wait time for cmdq N to get Authentication slice
+ ownership
+ cmdq_exec_ath<N> Authentication slice execution time while owned
+ by cmdq N
+ cmdq_drain_ath<N> time taken for cmdq N to release Authentication
+ slice ownership
+ ======================= ========================================
+
+ The telemetry report file can be read with the following command::
+
+ cat /sys/kernel/debug/qat_4xxx_0000:6b:00.0/telemetry/device_data
+
+ If ``control`` is set to 1, only the current values of the
+ counters are displayed::
+
+ <counter_name> <current>
+
+ If ``control`` is 2, 3 or 4, counters are displayed in the
+ following format::
+
+ <counter_name> <current> <min> <max> <avg>
+
+ If a device lacks of a specific accelerator, the corresponding
+ attribute is not reported.
+
+ This attribute is only available for qat_4xxx and qat_6xxx devices.
+
+What: /sys/kernel/debug/qat_<device>_<BDF>/telemetry/rp_<A/B/C/D>_data
+Date: March 2024
+KernelVersion: 6.8
+Contact: qat-linux@intel.com
+Description: (RW) Selects up to 4 Ring Pairs (RP) to monitor, one per file,
+ and report telemetry counters related to each.
+
+ Allowed values to write:
+ ========================
+ * 0 to ``<num_rps - 1>``:
+ Ring pair to be monitored. The value of ``num_rps`` can be
+ retrieved through ``/sys/bus/pci/devices/<BDF>/qat/num_rps``.
+ See Documentation/ABI/testing/sysfs-driver-qat.
+
+ Reads report metrics about performance and utilization of
+ the selected RP:
+
+ ======================= ========================================
+ Field Description
+ ======================= ========================================
+ sample_cnt number of acquisitions of telemetry data
+ from the device. Reads are performed
+ every 1000 ms
+ rp_num RP number associated with slot <A/B/C/D>
+ service_type service associated to the RP
+ pci_trans_cnt number of PCIe partial transactions
+ gp_lat_acc_avg average get to put latency [ns]
+ bw_in PCIe, write bandwidth [Mbps]
+ bw_out PCIe, read bandwidth [Mbps]
+ at_glob_devtlb_hit Message descriptor DevTLB hit rate
+ at_glob_devtlb_miss Message descriptor DevTLB miss rate
+ tl_at_payld_devtlb_hit Payload DevTLB hit rate
+ tl_at_payld_devtlb_miss Payload DevTLB miss rate
+ ======================= ========================================
+
+ Example.
+
+ Writing the value '32' to the file ``rp_C_data`` starts the
+ collection of telemetry metrics for ring pair 32::
+
+ echo 32 > /sys/kernel/debug/qat_4xxx_0000:6b:00.0/telemetry/rp_C_data
+
+ Once a ring pair is selected, statistics can be read accessing
+ the file::
+
+ cat /sys/kernel/debug/qat_4xxx_0000:6b:00.0/telemetry/rp_C_data
+
+ If ``control`` is set to 1, only the current values of the
+ counters are displayed::
+
+ <counter_name> <current>
+
+ If ``control`` is 2, 3 or 4, counters are displayed in the
+ following format::
+
+ <counter_name> <current> <min> <max> <avg>
+
+
+ On QAT GEN4 devices there are 64 RPs on a PF, so the allowed
+ values are 0..63. This number is absolute to the device.
+ If Virtual Functions (VF) are used, the ring pair number can
+ be derived from the Bus, Device, Function of the VF:
+
+ ============ ====== ====== ====== ======
+ PCI BDF/VF RP0 RP1 RP2 RP3
+ ============ ====== ====== ====== ======
+ 0000:6b:0.1 RP 0 RP 1 RP 2 RP 3
+ 0000:6b:0.2 RP 4 RP 5 RP 6 RP 7
+ 0000:6b:0.3 RP 8 RP 9 RP 10 RP 11
+ 0000:6b:0.4 RP 12 RP 13 RP 14 RP 15
+ 0000:6b:0.5 RP 16 RP 17 RP 18 RP 19
+ 0000:6b:0.6 RP 20 RP 21 RP 22 RP 23
+ 0000:6b:0.7 RP 24 RP 25 RP 26 RP 27
+ 0000:6b:1.0 RP 28 RP 29 RP 30 RP 31
+ 0000:6b:1.1 RP 32 RP 33 RP 34 RP 35
+ 0000:6b:1.2 RP 36 RP 37 RP 38 RP 39
+ 0000:6b:1.3 RP 40 RP 41 RP 42 RP 43
+ 0000:6b:1.4 RP 44 RP 45 RP 46 RP 47
+ 0000:6b:1.5 RP 48 RP 49 RP 50 RP 51
+ 0000:6b:1.6 RP 52 RP 53 RP 54 RP 55
+ 0000:6b:1.7 RP 56 RP 57 RP 58 RP 59
+ 0000:6b:2.0 RP 60 RP 61 RP 62 RP 63
+ ============ ====== ====== ====== ======
+
+ The mapping is only valid for the BDFs of VFs on the host.
+
+
+ The service provided on a ring-pair varies depending on the
+ configuration. The configuration for a given device can be
+ queried and set using ``cfg_services``.
+ See Documentation/ABI/testing/sysfs-driver-qat for details.
+
+ The following table reports how ring pairs are mapped to VFs
+ on the PF 0000:6b:0.0 configured for `sym;asym` or `asym;sym`:
+
+ =========== ============ =========== ============ ===========
+ PCI BDF/VF RP0/service RP1/service RP2/service RP3/service
+ =========== ============ =========== ============ ===========
+ 0000:6b:0.1 RP 0 asym RP 1 sym RP 2 asym RP 3 sym
+ 0000:6b:0.2 RP 4 asym RP 5 sym RP 6 asym RP 7 sym
+ 0000:6b:0.3 RP 8 asym RP 9 sym RP10 asym RP11 sym
+ ... ... ... ... ...
+ =========== ============ =========== ============ ===========
+
+ All VFs follow the same pattern.
+
+
+ The following table reports how ring pairs are mapped to VFs on
+ the PF 0000:6b:0.0 configured for `dc`:
+
+ =========== ============ =========== ============ ===========
+ PCI BDF/VF RP0/service RP1/service RP2/service RP3/service
+ =========== ============ =========== ============ ===========
+ 0000:6b:0.1 RP 0 dc RP 1 dc RP 2 dc RP 3 dc
+ 0000:6b:0.2 RP 4 dc RP 5 dc RP 6 dc RP 7 dc
+ 0000:6b:0.3 RP 8 dc RP 9 dc RP10 dc RP11 dc
+ ... ... ... ... ...
+ =========== ============ =========== ============ ===========
+
+ The mapping of a RP to a service can be retrieved using
+ ``rp2srv`` from sysfs.
+ See Documentation/ABI/testing/sysfs-driver-qat for details.
+
+ This attribute is only available for qat_4xxx and qat_6xxx devices.
diff --git a/Documentation/ABI/testing/debugfs-dwc-pcie b/Documentation/ABI/testing/debugfs-dwc-pcie
new file mode 100644
index 000000000000..92b76f52a408
--- /dev/null
+++ b/Documentation/ABI/testing/debugfs-dwc-pcie
@@ -0,0 +1,157 @@
+What: /sys/kernel/debug/dwc_pcie_<dev>/rasdes_debug/lane_detect
+Date: February 2025
+Contact: Shradha Todi <shradha.t@samsung.com>
+Description: (RW) Write the lane number to be checked for detection. Read
+ will return whether PHY indicates receiver detection on the
+ selected lane. The default selected lane is Lane0.
+
+What: /sys/kernel/debug/dwc_pcie_<dev>/rasdes_debug/rx_valid
+Date: February 2025
+Contact: Shradha Todi <shradha.t@samsung.com>
+Description: (RW) Write the lane number to be checked as valid or invalid.
+ Read will return the status of PIPE RXVALID signal of the
+ selected lane. The default selected lane is Lane0.
+
+What: /sys/kernel/debug/dwc_pcie_<dev>/rasdes_err_inj/<error>
+Date: February 2025
+Contact: Shradha Todi <shradha.t@samsung.com>
+Description: The "rasdes_err_inj" is a directory which can be used to inject
+ errors into the system. The possible errors that can be injected
+ are:
+
+ 1) tx_lcrc - TLP LCRC error injection TX Path
+ 2) b16_crc_dllp - 16b CRC error injection of ACK/NAK DLLP
+ 3) b16_crc_upd_fc - 16b CRC error injection of Update-FC DLLP
+ 4) tx_ecrc - TLP ECRC error injection TX Path
+ 5) fcrc_tlp - TLP's FCRC error injection TX Path
+ 6) parity_tsos - Parity error of TSOS
+ 7) parity_skpos - Parity error on SKPOS
+ 8) rx_lcrc - LCRC error injection RX Path
+ 9) rx_ecrc - ECRC error injection RX Path
+ 10) tlp_err_seq - TLPs SEQ# error
+ 11) ack_nak_dllp_seq - DLLPS ACK/NAK SEQ# error
+ 12) ack_nak_dllp - ACK/NAK DLLPs transmission block
+ 13) upd_fc_dllp - UpdateFC DLLPs transmission block
+ 14) nak_dllp - Always transmission for NAK DLLP
+ 15) inv_sync_hdr_sym - Invert SYNC header
+ 16) com_pad_ts1 - COM/PAD TS1 order set
+ 17) com_pad_ts2 - COM/PAD TS2 order set
+ 18) com_fts - COM/FTS FTS order set
+ 19) com_idl - COM/IDL E-idle order set
+ 20) end_edb - END/EDB symbol
+ 21) stp_sdp - STP/SDP symbol
+ 22) com_skp - COM/SKP SKP order set
+ 23) posted_tlp_hdr - Posted TLP Header credit value control
+ 24) non_post_tlp_hdr - Non-Posted TLP Header credit value control
+ 25) cmpl_tlp_hdr - Completion TLP Header credit value control
+ 26) posted_tlp_data - Posted TLP Data credit value control
+ 27) non_post_tlp_data - Non-Posted TLP Data credit value control
+ 28) cmpl_tlp_data - Completion TLP Data credit value control
+ 29) duplicate_tlp - Generates duplicate TLPs
+ 30) nullified_tlp - Generates Nullified TLPs
+
+ (WO) Write to the attribute will prepare controller to inject
+ the respective error in the next transmission of data.
+
+ Parameter required to write will change in the following ways:
+
+ - Errors 9 and 10 are sequence errors. The write command:
+
+ echo <count> <diff> > /sys/kernel/debug/dwc_pcie_<dev>/rasdes_err_inj/<error>
+
+ <count>
+ Number of errors to be injected
+ <diff>
+ The difference to add or subtract from natural
+ sequence number to generate sequence error.
+ Allowed range from -4095 to 4095
+
+ - Errors 23 to 28 are credit value error insertions. The write
+ command:
+
+ echo <count> <diff> <vc> > /sys/kernel/debug/dwc_pcie_<dev>/rasdes_err_inj/<error>
+
+ <count>
+ Number of errors to be injected
+ <diff>
+ The difference to add or subtract from UpdateFC
+ credit value. Allowed range from -4095 to 4095
+ <vc>
+ Target VC number
+
+ - All other errors. The write command:
+
+ echo <count> > /sys/kernel/debug/dwc_pcie_<dev>/rasdes_err_inj/<error>
+
+ <count>
+ Number of errors to be injected
+
+What: /sys/kernel/debug/dwc_pcie_<dev>/rasdes_event_counters/<event>/counter_enable
+Date: February 2025
+Contact: Shradha Todi <shradha.t@samsung.com>
+Description: The "rasdes_event_counters" is the directory which can be used
+ to collect statistical data about the number of times a certain
+ event has occurred in the controller. The list of possible
+ events are:
+
+ 1) EBUF Overflow
+ 2) EBUF Underrun
+ 3) Decode Error
+ 4) Running Disparity Error
+ 5) SKP OS Parity Error
+ 6) SYNC Header Error
+ 7) Rx Valid De-assertion
+ 8) CTL SKP OS Parity Error
+ 9) 1st Retimer Parity Error
+ 10) 2nd Retimer Parity Error
+ 11) Margin CRC and Parity Error
+ 12) Detect EI Infer
+ 13) Receiver Error
+ 14) RX Recovery Req
+ 15) N_FTS Timeout
+ 16) Framing Error
+ 17) Deskew Error
+ 18) Framing Error In L0
+ 19) Deskew Uncompleted Error
+ 20) Bad TLP
+ 21) LCRC Error
+ 22) Bad DLLP
+ 23) Replay Number Rollover
+ 24) Replay Timeout
+ 25) Rx Nak DLLP
+ 26) Tx Nak DLLP
+ 27) Retry TLP
+ 28) FC Timeout
+ 29) Poisoned TLP
+ 30) ECRC Error
+ 31) Unsupported Request
+ 32) Completer Abort
+ 33) Completion Timeout
+ 34) EBUF SKP Add
+ 35) EBUF SKP Del
+
+ (RW) Write 1 to enable the event counter and write 0 to disable
+ the event counter. Read will return whether the counter is
+ currently enabled or disabled. Counter is disabled by default.
+
+What: /sys/kernel/debug/dwc_pcie_<dev>/rasdes_event_counters/<event>/counter_value
+Date: February 2025
+Contact: Shradha Todi <shradha.t@samsung.com>
+Description: (RO) Read will return the current value of the event counter.
+ To reset the counter, counter should be disabled first and then
+ enabled back using the "counter_enable" attribute.
+
+What: /sys/kernel/debug/dwc_pcie_<dev>/rasdes_event_counters/<event>/lane_select
+Date: February 2025
+Contact: Shradha Todi <shradha.t@samsung.com>
+Description: (RW) Some lanes in the event list are lane specific events.
+ These include events from 1 to 11, as well as, 34 and 35. Write
+ the lane number for which you wish the counter to be enabled,
+ disabled, or value dumped. Read will return the current
+ selected lane number. Lane0 is selected by default.
+
+What: /sys/kernel/debug/dwc_pcie_<dev>/ltssm_status
+Date: February 2025
+Contact: Hans Zhang <18255117159@163.com>
+Description: (RO) Read will return the current PCIe LTSSM state in both
+ string and raw value.
diff --git a/Documentation/ABI/testing/debugfs-hisi-hpre b/Documentation/ABI/testing/debugfs-hisi-hpre
index 82abf92df429..29fb7d5ffc69 100644
--- a/Documentation/ABI/testing/debugfs-hisi-hpre
+++ b/Documentation/ABI/testing/debugfs-hisi-hpre
@@ -101,7 +101,7 @@ What: /sys/kernel/debug/hisi_hpre/<bdf>/qm/status
Date: Apr 2020
Contact: linux-crypto@vger.kernel.org
Description: Dump the status of the QM.
- Four states: initiated, started, stopped and closed.
+ Two states: work, stop.
Available for both PF and VF, and take no other effect on HPRE.
What: /sys/kernel/debug/hisi_hpre/<bdf>/qm/diff_regs
@@ -111,6 +111,28 @@ Description: QM debug registers(regs) read hardware register value. This
node is used to show the change of the qm register values. This
node can be help users to check the change of register values.
+What: /sys/kernel/debug/hisi_hpre/<bdf>/qm/qm_state
+Date: Jan 2024
+Contact: linux-crypto@vger.kernel.org
+Description: Dump the state of the device.
+ 0: busy, 1: idle.
+ Only available for PF, and take no other effect on HPRE.
+
+What: /sys/kernel/debug/hisi_hpre/<bdf>/qm/dev_timeout
+Date: Feb 2024
+Contact: linux-crypto@vger.kernel.org
+Description: Set the wait time when stop queue fails. Available for both PF
+ and VF, and take no other effect on HPRE.
+ 0: not wait(default), others value: wait dev_timeout * 20 microsecond.
+
+What: /sys/kernel/debug/hisi_hpre/<bdf>/qm/dev_state
+Date: Feb 2024
+Contact: linux-crypto@vger.kernel.org
+Description: Dump the stop queue status of the QM. The default value is 0,
+ if dev_timeout is set, when stop queue fails, the dev_state
+ will return non-zero value. Available for both PF and VF,
+ and take no other effect on HPRE.
+
What: /sys/kernel/debug/hisi_hpre/<bdf>/hpre_dfx/diff_regs
Date: Mar 2022
Contact: linux-crypto@vger.kernel.org
@@ -162,3 +184,10 @@ Date: Apr 2020
Contact: linux-crypto@vger.kernel.org
Description: Dump the total number of time out requests.
Available for both PF and VF, and take no other effect on HPRE.
+
+What: /sys/kernel/debug/hisi_hpre/<bdf>/cap_regs
+Date: Oct 2024
+Contact: linux-crypto@vger.kernel.org
+Description: Dump the values of the qm and hpre capability bit registers and
+ support the query of device specifications to facilitate fault locating.
+ Available for both PF and VF, and take no other effect on HPRE.
diff --git a/Documentation/ABI/testing/debugfs-hisi-migration b/Documentation/ABI/testing/debugfs-hisi-migration
new file mode 100644
index 000000000000..2c01b2d387dd
--- /dev/null
+++ b/Documentation/ABI/testing/debugfs-hisi-migration
@@ -0,0 +1,25 @@
+What: /sys/kernel/debug/vfio/<device>/migration/hisi_acc/dev_data
+Date: Jan 2025
+KernelVersion: 6.13
+Contact: Longfang Liu <liulongfang@huawei.com>
+Description: Read the configuration data and some status data
+ required for device live migration. These data include device
+ status data, queue configuration data, some task configuration
+ data and device attribute data. The output format of the data
+ is defined by the live migration driver.
+
+What: /sys/kernel/debug/vfio/<device>/migration/hisi_acc/migf_data
+Date: Jan 2025
+KernelVersion: 6.13
+Contact: Longfang Liu <liulongfang@huawei.com>
+Description: Read the data from the last completed live migration.
+ This data includes the same device status data as in "dev_data".
+ The migf_data is the dev_data that is migrated.
+
+What: /sys/kernel/debug/vfio/<device>/migration/hisi_acc/cmd_state
+Date: Jan 2025
+KernelVersion: 6.13
+Contact: Longfang Liu <liulongfang@huawei.com>
+Description: Used to obtain the device command sending and receiving
+ channel status. Returns failure or success logs based on the
+ results.
diff --git a/Documentation/ABI/testing/debugfs-hisi-sec b/Documentation/ABI/testing/debugfs-hisi-sec
index 93c530d1bf0f..82bf4a0dc7f7 100644
--- a/Documentation/ABI/testing/debugfs-hisi-sec
+++ b/Documentation/ABI/testing/debugfs-hisi-sec
@@ -81,7 +81,7 @@ What: /sys/kernel/debug/hisi_sec2/<bdf>/qm/status
Date: Apr 2020
Contact: linux-crypto@vger.kernel.org
Description: Dump the status of the QM.
- Four states: initiated, started, stopped and closed.
+ Two states: work, stop.
Available for both PF and VF, and take no other effect on SEC.
What: /sys/kernel/debug/hisi_sec2/<bdf>/qm/diff_regs
@@ -91,6 +91,28 @@ Description: QM debug registers(regs) read hardware register value. This
node is used to show the change of the qm register values. This
node can be help users to check the change of register values.
+What: /sys/kernel/debug/hisi_sec2/<bdf>/qm/qm_state
+Date: Jan 2024
+Contact: linux-crypto@vger.kernel.org
+Description: Dump the state of the device.
+ 0: busy, 1: idle.
+ Only available for PF, and take no other effect on SEC.
+
+What: /sys/kernel/debug/hisi_sec2/<bdf>/qm/dev_timeout
+Date: Feb 2024
+Contact: linux-crypto@vger.kernel.org
+Description: Set the wait time when stop queue fails. Available for both PF
+ and VF, and take no other effect on SEC.
+ 0: not wait(default), others value: wait dev_timeout * 20 microsecond.
+
+What: /sys/kernel/debug/hisi_sec2/<bdf>/qm/dev_state
+Date: Feb 2024
+Contact: linux-crypto@vger.kernel.org
+Description: Dump the stop queue status of the QM. The default value is 0,
+ if dev_timeout is set, when stop queue fails, the dev_state
+ will return non-zero value. Available for both PF and VF,
+ and take no other effect on SEC.
+
What: /sys/kernel/debug/hisi_sec2/<bdf>/sec_dfx/diff_regs
Date: Mar 2022
Contact: linux-crypto@vger.kernel.org
@@ -135,3 +157,10 @@ Contact: linux-crypto@vger.kernel.org
Description: Dump the total number of completed but marked error requests
to be received.
Available for both PF and VF, and take no other effect on SEC.
+
+What: /sys/kernel/debug/hisi_sec2/<bdf>/cap_regs
+Date: Oct 2024
+Contact: linux-crypto@vger.kernel.org
+Description: Dump the values of the qm and sec capability bit registers and
+ support the query of device specifications to facilitate fault locating.
+ Available for both PF and VF, and take no other effect on SEC.
diff --git a/Documentation/ABI/testing/debugfs-hisi-zip b/Documentation/ABI/testing/debugfs-hisi-zip
index fd3f314cf8d1..0abd65d27e9b 100644
--- a/Documentation/ABI/testing/debugfs-hisi-zip
+++ b/Documentation/ABI/testing/debugfs-hisi-zip
@@ -94,7 +94,7 @@ What: /sys/kernel/debug/hisi_zip/<bdf>/qm/status
Date: Apr 2020
Contact: linux-crypto@vger.kernel.org
Description: Dump the status of the QM.
- Four states: initiated, started, stopped and closed.
+ Two states: work, stop.
Available for both PF and VF, and take no other effect on ZIP.
What: /sys/kernel/debug/hisi_zip/<bdf>/qm/diff_regs
@@ -104,6 +104,28 @@ Description: QM debug registers(regs) read hardware register value. This
node is used to show the change of the qm registers value. This
node can be help users to check the change of register values.
+What: /sys/kernel/debug/hisi_zip/<bdf>/qm/qm_state
+Date: Jan 2024
+Contact: linux-crypto@vger.kernel.org
+Description: Dump the state of the device.
+ 0: busy, 1: idle.
+ Only available for PF, and take no other effect on ZIP.
+
+What: /sys/kernel/debug/hisi_zip/<bdf>/qm/dev_timeout
+Date: Feb 2024
+Contact: linux-crypto@vger.kernel.org
+Description: Set the wait time when stop queue fails. Available for both PF
+ and VF, and take no other effect on ZIP.
+ 0: not wait(default), others value: wait dev_timeout * 20 microsecond.
+
+What: /sys/kernel/debug/hisi_zip/<bdf>/qm/dev_state
+Date: Feb 2024
+Contact: linux-crypto@vger.kernel.org
+Description: Dump the stop queue status of the QM. The default value is 0,
+ if dev_timeout is set, when stop queue fails, the dev_state
+ will return non-zero value. Available for both PF and VF,
+ and take no other effect on ZIP.
+
What: /sys/kernel/debug/hisi_zip/<bdf>/zip_dfx/diff_regs
Date: Mar 2022
Contact: linux-crypto@vger.kernel.org
@@ -136,3 +158,10 @@ Contact: linux-crypto@vger.kernel.org
Description: Dump the total number of BD type error requests
to be received.
Available for both PF and VF, and take no other effect on ZIP.
+
+What: /sys/kernel/debug/hisi_zip/<bdf>/cap_regs
+Date: Oct 2024
+Contact: linux-crypto@vger.kernel.org
+Description: Dump the values of the qm and zip capability bit registers and
+ support the query of device specifications to facilitate fault locating.
+ Available for both PF and VF, and take no other effect on ZIP.
diff --git a/Documentation/ABI/testing/debugfs-iio-ad9467 b/Documentation/ABI/testing/debugfs-iio-ad9467
new file mode 100644
index 000000000000..0352fca1f7f2
--- /dev/null
+++ b/Documentation/ABI/testing/debugfs-iio-ad9467
@@ -0,0 +1,39 @@
+What: /sys/kernel/debug/iio/iio:deviceX/calibration_table_dump
+KernelVersion: 6.11
+Contact: linux-iio@vger.kernel.org
+Description:
+ This dumps the calibration table that was filled during the
+ digital interface tuning process.
+
+What: /sys/kernel/debug/iio/iio:deviceX/in_voltage_test_mode_available
+KernelVersion: 6.11
+Contact: linux-iio@vger.kernel.org
+Description:
+ List all the available test tones:
+ - off
+ - midscale_short
+ - pos_fullscale
+ - neg_fullscale
+ - checkerboard
+ - prbs23
+ - prbs9
+ - one_zero_toggle
+ - user
+ - bit_toggle
+ - sync
+ - one_bit_high
+ - mixed_bit_frequency
+ - ramp
+
+ Note that depending on the actual device being used, some of the
+ above might not be available (and they won't be listed when
+ reading the file).
+
+What: /sys/kernel/debug/iio/iio:deviceX/in_voltageY_test_mode
+KernelVersion: 6.11
+Contact: linux-iio@vger.kernel.org
+Description:
+ Writing to this file will initiate one of available test tone on
+ channel Y. Reading it, shows which test is running. In cases
+ where an IIO backend is available and supports the test tone,
+ additional information about the data correctness is given.
diff --git a/Documentation/ABI/testing/debugfs-iio-backend b/Documentation/ABI/testing/debugfs-iio-backend
new file mode 100644
index 000000000000..01ab94469432
--- /dev/null
+++ b/Documentation/ABI/testing/debugfs-iio-backend
@@ -0,0 +1,20 @@
+What: /sys/kernel/debug/iio/iio:deviceX/backendY/name
+KernelVersion: 6.11
+Contact: linux-iio@vger.kernel.org
+Description:
+ Name of Backend Y connected to device X.
+
+What: /sys/kernel/debug/iio/iio:deviceX/backendY/direct_reg_access
+KernelVersion: 6.11
+Contact: linux-iio@vger.kernel.org
+Description:
+ Directly access the registers of backend Y. Typical usage is:
+
+ Reading address 0x50
+ echo 0x50 > direct_reg_access
+ cat direct_reg_access
+
+ Writing address 0x50
+ echo 0x50 0x3 > direct_reg_access
+ //readback address 0x50
+ cat direct_reg_access
diff --git a/Documentation/ABI/testing/debugfs-intel-iommu b/Documentation/ABI/testing/debugfs-intel-iommu
new file mode 100644
index 000000000000..2ab8464504a9
--- /dev/null
+++ b/Documentation/ABI/testing/debugfs-intel-iommu
@@ -0,0 +1,276 @@
+What: /sys/kernel/debug/iommu/intel/iommu_regset
+Date: December 2023
+Contact: Jingqi Liu <Jingqi.liu@intel.com>
+Description:
+ This file dumps all the register contents for each IOMMU device.
+
+ Example in Kabylake:
+
+ ::
+
+ $ sudo cat /sys/kernel/debug/iommu/intel/iommu_regset
+
+ IOMMU: dmar0 Register Base Address: 26be37000
+
+ Name Offset Contents
+ VER 0x00 0x0000000000000010
+ GCMD 0x18 0x0000000000000000
+ GSTS 0x1c 0x00000000c7000000
+ FSTS 0x34 0x0000000000000000
+ FECTL 0x38 0x0000000000000000
+
+ [...]
+
+ IOMMU: dmar1 Register Base Address: fed90000
+
+ Name Offset Contents
+ VER 0x00 0x0000000000000010
+ GCMD 0x18 0x0000000000000000
+ GSTS 0x1c 0x00000000c7000000
+ FSTS 0x34 0x0000000000000000
+ FECTL 0x38 0x0000000000000000
+
+ [...]
+
+ IOMMU: dmar2 Register Base Address: fed91000
+
+ Name Offset Contents
+ VER 0x00 0x0000000000000010
+ GCMD 0x18 0x0000000000000000
+ GSTS 0x1c 0x00000000c7000000
+ FSTS 0x34 0x0000000000000000
+ FECTL 0x38 0x0000000000000000
+
+ [...]
+
+What: /sys/kernel/debug/iommu/intel/ir_translation_struct
+Date: December 2023
+Contact: Jingqi Liu <Jingqi.liu@intel.com>
+Description:
+ This file dumps the table entries for Interrupt
+ remapping and Interrupt posting.
+
+ Example in Kabylake:
+
+ ::
+
+ $ sudo cat /sys/kernel/debug/iommu/intel/ir_translation_struct
+
+ Remapped Interrupt supported on IOMMU: dmar0
+ IR table address:100900000
+
+ Entry SrcID DstID Vct IRTE_high IRTE_low
+ 0 00:0a.0 00000080 24 0000000000040050 000000800024000d
+ 1 00:0a.0 00000001 ef 0000000000040050 0000000100ef000d
+
+ Remapped Interrupt supported on IOMMU: dmar1
+ IR table address:100300000
+ Entry SrcID DstID Vct IRTE_high IRTE_low
+ 0 00:02.0 00000002 26 0000000000040010 000000020026000d
+
+ [...]
+
+ ****
+
+ Posted Interrupt supported on IOMMU: dmar0
+ IR table address:100900000
+ Entry SrcID PDA_high PDA_low Vct IRTE_high IRTE_low
+
+What: /sys/kernel/debug/iommu/intel/dmar_translation_struct
+Date: December 2023
+Contact: Jingqi Liu <Jingqi.liu@intel.com>
+Description:
+ This file dumps Intel IOMMU DMA remapping tables, such
+ as root table, context table, PASID directory and PASID
+ table entries in debugfs. For legacy mode, it doesn't
+ support PASID, and hence PASID field is defaulted to
+ '-1' and other PASID related fields are invalid.
+
+ Example in Kabylake:
+
+ ::
+
+ $ sudo cat /sys/kernel/debug/iommu/intel/dmar_translation_struct
+
+ IOMMU dmar1: Root Table Address: 0x103027000
+ B.D.F Root_entry
+ 00:02.0 0x0000000000000000:0x000000010303e001
+
+ Context_entry
+ 0x0000000000000102:0x000000010303f005
+
+ PASID PASID_table_entry
+ -1 0x0000000000000000:0x0000000000000000:0x0000000000000000
+
+ IOMMU dmar0: Root Table Address: 0x103028000
+ B.D.F Root_entry
+ 00:0a.0 0x0000000000000000:0x00000001038a7001
+
+ Context_entry
+ 0x0000000000000000:0x0000000103220e7d
+
+ PASID PASID_table_entry
+ 0 0x0000000000000000:0x0000000000800002:0x00000001038a5089
+
+ [...]
+
+What: /sys/kernel/debug/iommu/intel/invalidation_queue
+Date: December 2023
+Contact: Jingqi Liu <Jingqi.liu@intel.com>
+Description:
+ This file exports invalidation queue internals of each
+ IOMMU device.
+
+ Example in Kabylake:
+
+ ::
+
+ $ sudo cat /sys/kernel/debug/iommu/intel/invalidation_queue
+
+ Invalidation queue on IOMMU: dmar0
+ Base: 0x10022e000 Head: 20 Tail: 20
+ Index qw0 qw1 qw2
+ 0 0000000000000014 0000000000000000 0000000000000000
+ 1 0000000200000025 0000000100059c04 0000000000000000
+ 2 0000000000000014 0000000000000000 0000000000000000
+
+ qw3 status
+ 0000000000000000 0000000000000000
+ 0000000000000000 0000000000000000
+ 0000000000000000 0000000000000000
+
+ [...]
+
+ Invalidation queue on IOMMU: dmar1
+ Base: 0x10026e000 Head: 32 Tail: 32
+ Index qw0 qw1 status
+ 0 0000000000000004 0000000000000000 0000000000000000
+ 1 0000000200000025 0000000100059804 0000000000000000
+ 2 0000000000000011 0000000000000000 0000000000000000
+
+ [...]
+
+What: /sys/kernel/debug/iommu/intel/dmar_perf_latency
+Date: December 2023
+Contact: Jingqi Liu <Jingqi.liu@intel.com>
+Description:
+ This file is used to control and show counts of
+ execution time ranges for various types per DMAR.
+
+ Firstly, write a value to
+ /sys/kernel/debug/iommu/intel/dmar_perf_latency
+ to enable sampling.
+
+ The possible values are as follows:
+
+ * 0 - disable sampling all latency data
+
+ * 1 - enable sampling IOTLB invalidation latency data
+
+ * 2 - enable sampling devTLB invalidation latency data
+
+ * 3 - enable sampling intr entry cache invalidation latency data
+
+ Next, read /sys/kernel/debug/iommu/intel/dmar_perf_latency gives
+ a snapshot of sampling result of all enabled monitors.
+
+ Examples in Kabylake:
+
+ ::
+
+ 1) Disable sampling all latency data:
+
+ $ sudo echo 0 > /sys/kernel/debug/iommu/intel/dmar_perf_latency
+
+ 2) Enable sampling IOTLB invalidation latency data
+
+ $ sudo echo 1 > /sys/kernel/debug/iommu/intel/dmar_perf_latency
+
+ $ sudo cat /sys/kernel/debug/iommu/intel/dmar_perf_latency
+
+ IOMMU: dmar0 Register Base Address: 26be37000
+ <0.1us 0.1us-1us 1us-10us 10us-100us 100us-1ms
+ inv_iotlb 0 0 0 0 0
+
+ 1ms-10ms >=10ms min(us) max(us) average(us)
+ inv_iotlb 0 0 0 0 0
+
+ [...]
+
+ IOMMU: dmar2 Register Base Address: fed91000
+ <0.1us 0.1us-1us 1us-10us 10us-100us 100us-1ms
+ inv_iotlb 0 0 18 0 0
+
+ 1ms-10ms >=10ms min(us) max(us) average(us)
+ inv_iotlb 0 0 2 2 2
+
+ 3) Enable sampling devTLB invalidation latency data
+
+ $ sudo echo 2 > /sys/kernel/debug/iommu/intel/dmar_perf_latency
+
+ $ sudo cat /sys/kernel/debug/iommu/intel/dmar_perf_latency
+
+ IOMMU: dmar0 Register Base Address: 26be37000
+ <0.1us 0.1us-1us 1us-10us 10us-100us 100us-1ms
+ inv_devtlb 0 0 0 0 0
+
+ >=10ms min(us) max(us) average(us)
+ inv_devtlb 0 0 0 0
+
+ [...]
+
+What: /sys/kernel/debug/iommu/intel/<bdf>/domain_translation_struct
+Date: December 2023
+Contact: Jingqi Liu <Jingqi.liu@intel.com>
+Description:
+ This file dumps a specified page table of Intel IOMMU
+ in legacy mode or scalable mode.
+
+ For a device that only supports legacy mode, dump its
+ page table by the debugfs file in the debugfs device
+ directory. e.g.
+ /sys/kernel/debug/iommu/intel/0000:00:02.0/domain_translation_struct.
+
+ For a device that supports scalable mode, dump the
+ page table of specified pasid by the debugfs file in
+ the debugfs pasid directory. e.g.
+ /sys/kernel/debug/iommu/intel/0000:00:02.0/1/domain_translation_struct.
+
+ Examples in Kabylake:
+
+ ::
+
+ 1) Dump the page table of device "0000:00:02.0" that only supports legacy mode.
+
+ $ sudo cat /sys/kernel/debug/iommu/intel/0000:00:02.0/domain_translation_struct
+
+ Device 0000:00:02.0 @0x1017f8000
+ IOVA_PFN PML5E PML4E
+ 0x000000008d800 | 0x0000000000000000 0x00000001017f9003
+ 0x000000008d801 | 0x0000000000000000 0x00000001017f9003
+ 0x000000008d802 | 0x0000000000000000 0x00000001017f9003
+
+ PDPE PDE PTE
+ 0x00000001017fa003 0x00000001017fb003 0x000000008d800003
+ 0x00000001017fa003 0x00000001017fb003 0x000000008d801003
+ 0x00000001017fa003 0x00000001017fb003 0x000000008d802003
+
+ [...]
+
+ 2) Dump the page table of device "0000:00:0a.0" with PASID "1" that
+ supports scalable mode.
+
+ $ sudo cat /sys/kernel/debug/iommu/intel/0000:00:0a.0/1/domain_translation_struct
+
+ Device 0000:00:0a.0 with pasid 1 @0x10c112000
+ IOVA_PFN PML5E PML4E
+ 0x0000000000000 | 0x0000000000000000 0x000000010df93003
+ 0x0000000000001 | 0x0000000000000000 0x000000010df93003
+ 0x0000000000002 | 0x0000000000000000 0x000000010df93003
+
+ PDPE PDE PTE
+ 0x0000000106ae6003 0x0000000104b38003 0x0000000147c00803
+ 0x0000000106ae6003 0x0000000104b38003 0x0000000147c01803
+ 0x0000000106ae6003 0x0000000104b38003 0x0000000147c02803
+
+ [...]
diff --git a/Documentation/ABI/testing/debugfs-msi-wmi-platform b/Documentation/ABI/testing/debugfs-msi-wmi-platform
new file mode 100644
index 000000000000..71f9992168d8
--- /dev/null
+++ b/Documentation/ABI/testing/debugfs-msi-wmi-platform
@@ -0,0 +1,14 @@
+What: /sys/kernel/debug/msi-wmi-platform-<wmi_device_name>/*
+Date: April 2024
+KernelVersion: 6.10
+Contact: Armin Wolf <W_Armin@gmx.de>
+Description:
+ This file allows to execute the associated WMI method with the same name.
+
+ To start the execution, write a buffer containing the method arguments
+ at file offset 0. Partial writes or writes at a different offset are not
+ supported.
+
+ The buffer returned by the WMI method can then be read from the file.
+
+ See Documentation/wmi/devices/msi-wmi-platform.rst for details.
diff --git a/Documentation/ABI/testing/debugfs-pcie-ptm b/Documentation/ABI/testing/debugfs-pcie-ptm
new file mode 100644
index 000000000000..602d41363571
--- /dev/null
+++ b/Documentation/ABI/testing/debugfs-pcie-ptm
@@ -0,0 +1,70 @@
+What: /sys/kernel/debug/pcie_ptm_*/local_clock
+Date: May 2025
+Contact: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+Description:
+ (RO) PTM local clock in nanoseconds. Applicable for both Root
+ Complex and Endpoint controllers.
+
+What: /sys/kernel/debug/pcie_ptm_*/master_clock
+Date: May 2025
+Contact: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+Description:
+ (RO) PTM master clock in nanoseconds. Applicable only for
+ Endpoint controllers.
+
+What: /sys/kernel/debug/pcie_ptm_*/t1
+Date: May 2025
+Contact: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+Description:
+ (RO) PTM T1 timestamp in nanoseconds. Applicable only for
+ Endpoint controllers.
+
+What: /sys/kernel/debug/pcie_ptm_*/t2
+Date: May 2025
+Contact: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+Description:
+ (RO) PTM T2 timestamp in nanoseconds. Applicable only for
+ Root Complex controllers.
+
+What: /sys/kernel/debug/pcie_ptm_*/t3
+Date: May 2025
+Contact: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+Description:
+ (RO) PTM T3 timestamp in nanoseconds. Applicable only for
+ Root Complex controllers.
+
+What: /sys/kernel/debug/pcie_ptm_*/t4
+Date: May 2025
+Contact: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+Description:
+ (RO) PTM T4 timestamp in nanoseconds. Applicable only for
+ Endpoint controllers.
+
+What: /sys/kernel/debug/pcie_ptm_*/context_update
+Date: May 2025
+Contact: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+Description:
+ (RW) Control the PTM context update mode. Applicable only for
+ Endpoint controllers.
+
+ Following values are supported:
+
+ * auto = PTM context auto update trigger for every 10ms
+
+ * manual = PTM context manual update. Writing 'manual' to this
+ file triggers PTM context update (default)
+
+What: /sys/kernel/debug/pcie_ptm_*/context_valid
+Date: May 2025
+Contact: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+Description:
+ (RW) Control the PTM context validity (local clock timing).
+ Applicable only for Root Complex controllers. PTM context is
+ invalidated by hardware if the Root Complex enters low power
+ mode or changes link frequency.
+
+ Following values are supported:
+
+ * 0 = PTM context invalid (default)
+
+ * 1 = PTM context valid
diff --git a/Documentation/ABI/testing/debugfs-pktcdvd b/Documentation/ABI/testing/debugfs-pktcdvd
deleted file mode 100644
index f6f65a4faea0..000000000000
--- a/Documentation/ABI/testing/debugfs-pktcdvd
+++ /dev/null
@@ -1,18 +0,0 @@
-What: /sys/kernel/debug/pktcdvd/pktcdvd[0-7]
-Date: Oct. 2006
-KernelVersion: 2.6.20
-Contact: Thomas Maier <balagi@justmail.de>
-Description:
-
-The pktcdvd module (packet writing driver) creates
-these files in debugfs:
-
-/sys/kernel/debug/pktcdvd/pktcdvd[0-7]/
-
- ==== ====== ====================================
- info 0444 Lots of driver statistics and infos.
- ==== ====== ====================================
-
-Example::
-
- cat /sys/kernel/debug/pktcdvd/pktcdvd0/info
diff --git a/Documentation/ABI/testing/debugfs-scmi-raw b/Documentation/ABI/testing/debugfs-scmi-raw
index 97678cc9535c..5847b96b3896 100644
--- a/Documentation/ABI/testing/debugfs-scmi-raw
+++ b/Documentation/ABI/testing/debugfs-scmi-raw
@@ -31,6 +31,42 @@ Description: SCMI Raw asynchronous message injection/snooping facility; write
(receiving an EOF at each message boundary).
Users: Debugging, any userspace test suite
+What: /sys/kernel/debug/scmi/<n>/raw/message_poll
+Date: June 2025
+KernelVersion: 6.16
+Contact: cristian.marussi@arm.com
+Description: SCMI Raw message injection/snooping facility using polling mode;
+ write a complete SCMI command message (header included) in
+ little-endian binary format to have it sent to the configured
+ backend SCMI server for instance <n>, using polling mode on
+ the reception path. (if transport is polling capable)
+ Any subsequently received response can be read from this same
+ entry if it arrived within the configured timeout.
+ Each write to the entry causes one command request to be built
+ and sent while the replies are read back one message at time
+ (receiving an EOF at each message boundary).
+Users: Debugging, any userspace test suite
+
+What: /sys/kernel/debug/scmi/<n>/raw/message_poll_async
+Date: June 2025
+KernelVersion: 6.16
+Contact: cristian.marussi@arm.com
+Description: SCMI Raw asynchronous message injection/snooping facility using
+ polling-mode; write a complete SCMI asynchronous command message
+ (header included) in little-endian binary format to have it sent
+ to the configured backend SCMI server for instance <n>, using
+ polling-mode on the reception path of the immediate part of the
+ asynchronous command. (if transport is polling capable)
+ Any subsequently received response can be read from this same
+ entry if it arrived within the configured timeout.
+ Any additional delayed response received afterwards can be read
+ from this same entry too if it arrived within the configured
+ timeout.
+ Each write to the entry causes one command request to be built
+ and sent while the replies are read back one message at time
+ (receiving an EOF at each message boundary).
+Users: Debugging, any userspace test suite
+
What: /sys/kernel/debug/scmi/<n>/raw/errors
Date: March 2023
KernelVersion: 6.3
@@ -115,3 +151,58 @@ Description: SCMI Raw asynchronous message injection/snooping facility; write
exist only if the transport is configured to have more than
one default channel.
Users: Debugging, any userspace test suite
+
+
+What: /sys/kernel/debug/scmi/<n>/raw/channels/<m>/message_poll
+Date: June 2025
+KernelVersion: 6.16
+Contact: cristian.marussi@arm.com
+Description: SCMI Raw message injection/snooping facility using polling mode;
+ write a complete SCMI command message (header included) in
+ little-endian binary format to have it sent to the configured
+ backend SCMI server for instance <n> through the <m> transport
+ channel, using polling mode on the reception path.
+ (if transport is polling capable)
+ Any subsequently received response can be read from this same
+ entry if it arrived on channel <m> within the configured
+ timeout.
+ Each write to the entry causes one command request to be built
+ and sent while the replies are read back one message at time
+ (receiving an EOF at each message boundary).
+ Channel identifier <m> matches the SCMI protocol number which
+ has been associated with this transport channel in the DT
+ description, with base protocol number 0x10 being the default
+ channel for this instance.
+ Note that these per-channel entries rooted at <..>/channels
+ exist only if the transport is configured to have more than
+ one default channel.
+Users: Debugging, any userspace test suite
+
+What: /sys/kernel/debug/scmi/<n>/raw/channels/<m>/message_poll_async
+Date: June 2025
+KernelVersion: 6.16
+Contact: cristian.marussi@arm.com
+Description: SCMI Raw asynchronous message injection/snooping facility using
+ polling-mode; write a complete SCMI asynchronous command message
+ (header included) in little-endian binary format to have it sent
+ to the configured backend SCMI server for instance <n> through
+ the <m> transport channel, using polling mode on the reception
+ path of the immediate part of the asynchronous command.
+ (if transport is polling capable)
+ Any subsequently received response can be read from this same
+ entry if it arrived on channel <m> within the configured
+ timeout.
+ Any additional delayed response received afterwards can be read
+ from this same entry too if it arrived within the configured
+ timeout.
+ Each write to the entry causes one command request to be built
+ and sent while the replies are read back one message at time
+ (receiving an EOF at each message boundary).
+ Channel identifier <m> matches the SCMI protocol number which
+ has been associated with this transport channel in the DT
+ description, with base protocol number 0x10 being the default
+ channel for this instance.
+ Note that these per-channel entries rooted at <..>/channels
+ exist only if the transport is configured to have more than
+ one default channel.
+Users: Debugging, any userspace test suite
diff --git a/Documentation/ABI/testing/debugfs-tpmi b/Documentation/ABI/testing/debugfs-tpmi
new file mode 100644
index 000000000000..c493a1403d2f
--- /dev/null
+++ b/Documentation/ABI/testing/debugfs-tpmi
@@ -0,0 +1,40 @@
+What: /sys/kernel/debug/tpmi-<n>/pfs_dump
+Date: November 2023
+KernelVersion: 6.6
+Contact: srinivas.pandruvada@linux.intel.com
+Description:
+The PFS (PM Feature Structure) table, shows details of each power
+management feature. This includes:
+tpmi_id, number of entries, entry size, offset, vsec offset, lock status
+and disabled status.
+Users: Debugging, any user space test suite
+
+What: /sys/kernel/debug/tpmi-<n>/tpmi-id-<n>/mem_dump
+Date: November 2023
+KernelVersion: 6.6
+Contact: srinivas.pandruvada@linux.intel.com
+Description:
+Shows the memory dump of the MMIO region for a TPMI ID.
+Users: Debugging, any user space test suite
+
+What: /sys/kernel/debug/tpmi-<n>/tpmi-id-<n>/mem_write
+Date: November 2023
+KernelVersion: 6.6
+Contact: srinivas.pandruvada@linux.intel.com
+Description:
+Allows to write at any offset. It doesn't check for Read/Write access
+as hardware will not allow to write at read-only memory. This write is
+at offset multiples of 4. The format is instance,offset,contents.
+Example:
+echo 0,0x20,0xff > mem_write
+echo 1,64,64 > mem_write
+Users: Debugging, any user space test suite
+
+What: /sys/kernel/debug/tpmi-<n>/plr/domain<n>/status
+Date: Aug 2024
+KernelVersion: 6.11
+Contact: Tero Kristo <tero.kristo@linux.intel.com>
+Description:
+Shows the currently active Performance Limit Reasons for die level and the
+individual CPUs under the die. The contents of this file are sticky, and
+clearing all the statuses can be done by writing "0\n" to this file.
diff --git a/Documentation/ABI/testing/debugfs-turris-mox-rwtm b/Documentation/ABI/testing/debugfs-turris-mox-rwtm
deleted file mode 100644
index 813987d5de4e..000000000000
--- a/Documentation/ABI/testing/debugfs-turris-mox-rwtm
+++ /dev/null
@@ -1,14 +0,0 @@
-What: /sys/kernel/debug/turris-mox-rwtm/do_sign
-Date: Jun 2020
-KernelVersion: 5.8
-Contact: Marek Behún <kabel@kernel.org>
-Description:
-
- ======= ===========================================================
- (Write) Message to sign with the ECDSA private key stored in
- device's OTP. The message must be exactly 64 bytes
- (since this is intended for SHA-512 hashes).
- (Read) The resulting signature, 136 bytes. This contains the
- R and S values of the ECDSA signature, both in
- big-endian format.
- ======= ===========================================================
diff --git a/Documentation/ABI/testing/debugfs-vfio b/Documentation/ABI/testing/debugfs-vfio
new file mode 100644
index 000000000000..70ec2d454686
--- /dev/null
+++ b/Documentation/ABI/testing/debugfs-vfio
@@ -0,0 +1,31 @@
+What: /sys/kernel/debug/vfio
+Date: December 2023
+KernelVersion: 6.8
+Contact: Longfang Liu <liulongfang@huawei.com>
+Description: This debugfs file directory is used for debugging
+ of vfio devices, it's a common directory for all vfio devices.
+ Vfio core will create a device subdirectory under this
+ directory.
+
+What: /sys/kernel/debug/vfio/<device>/migration
+Date: December 2023
+KernelVersion: 6.8
+Contact: Longfang Liu <liulongfang@huawei.com>
+Description: This debugfs file directory is used for debugging
+ of vfio devices that support live migration.
+ The debugfs of each vfio device that supports live migration
+ could be created under this directory.
+
+What: /sys/kernel/debug/vfio/<device>/migration/state
+Date: December 2023
+KernelVersion: 6.8
+Contact: Longfang Liu <liulongfang@huawei.com>
+Description: Read the live migration status of the vfio device.
+ The contents of the state file reflects the migration state
+ relative to those defined in the vfio_device_mig_state enum
+
+What: /sys/kernel/debug/vfio/<device>/migration/features
+Date: Oct 2025
+KernelVersion: 6.18
+Contact: Cédric Le Goater <clg@redhat.com>
+Description: Read the migration features of the vfio device.
diff --git a/Documentation/ABI/testing/gpio-cdev b/Documentation/ABI/testing/gpio-cdev
index 66bdcd188b6c..c9689b2a6fed 100644
--- a/Documentation/ABI/testing/gpio-cdev
+++ b/Documentation/ABI/testing/gpio-cdev
@@ -6,8 +6,9 @@ Description:
The character device files /dev/gpiochip* are the interface
between GPIO chips and userspace.
- The ioctl(2)-based ABI is defined and documented in
- [include/uapi]<linux/gpio.h>.
+ The ioctl(2)-based ABI is defined in
+ [include/uapi]<linux/gpio.h> and documented in
+ Documentation/userspace-api/gpio/chardev.rst.
The following file operations are supported:
@@ -17,8 +18,8 @@ Description:
ioctl(2)
Initiate various actions.
- See the inline documentation in [include/uapi]<linux/gpio.h>
- for descriptions of all ioctls.
+ See Documentation/userspace-api/gpio/chardev.rst
+ for a description of all ioctls.
close(2)
Stops and free up the I/O contexts that was associated
diff --git a/Documentation/ABI/testing/ima_policy b/Documentation/ABI/testing/ima_policy
index 49db0ff288e5..d4b3696a9efb 100644
--- a/Documentation/ABI/testing/ima_policy
+++ b/Documentation/ABI/testing/ima_policy
@@ -20,9 +20,10 @@ Description:
rule format: action [condition ...]
action: measure | dont_measure | appraise | dont_appraise |
- audit | hash | dont_hash
+ audit | dont_audit | hash | dont_hash
condition:= base | lsm [option]
base: [[func=] [mask=] [fsmagic=] [fsuuid=] [fsname=]
+ [fs_subtype=]
[uid=] [euid=] [gid=] [egid=]
[fowner=] [fgroup=]]
lsm: [[subj_user=] [subj_role=] [subj_type=]
@@ -57,9 +58,9 @@ Description:
stored in security.ima xattr. Requires
specifying "digest_type=verity" first.)
- appraise_flag:= [check_blacklist]
- Currently, blacklist check is only for files signed with appended
- signature.
+ appraise_flag:= [check_blacklist] (deprecated)
+ Setting the check_blacklist flag is no longer necessary.
+ All appraisal functions set it by default.
digest_type:= verity
Require fs-verity's file digest instead of the
regular IMA file hash.
diff --git a/Documentation/ABI/testing/procfs-diskstats b/Documentation/ABI/testing/procfs-diskstats
index e58d641443d3..6a719cf2075c 100644
--- a/Documentation/ABI/testing/procfs-diskstats
+++ b/Documentation/ABI/testing/procfs-diskstats
@@ -8,7 +8,7 @@ Description:
== ===================================
1 major number
- 2 minor mumber
+ 2 minor number
3 device name
4 reads completed successfully
5 reads merged
diff --git a/Documentation/ABI/testing/sysfs-auxdisplay-linedisp b/Documentation/ABI/testing/sysfs-auxdisplay-linedisp
new file mode 100644
index 000000000000..55f1b559e84e
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-auxdisplay-linedisp
@@ -0,0 +1,90 @@
+What: /sys/.../message
+Date: October 2021
+KernelVersion: 5.16
+Description:
+ Controls the text message displayed on character line displays.
+
+ Reading returns the current message with a trailing newline.
+ Writing updates the displayed message. Messages longer than the
+ display width will automatically scroll. Trailing newlines in
+ input are automatically trimmed.
+
+ Writing an empty string clears the display.
+
+ Example:
+ echo "Hello World" > message
+ cat message # Returns "Hello World\n"
+
+What: /sys/.../num_chars
+Date: November 2025
+KernelVersion: 6.18
+Contact: Jean-François Lessard <jefflessard3@gmail.com>
+Description:
+ Read-only attribute showing the character width capacity of
+ the line display device. Messages longer than this will scroll.
+
+ Example:
+ cat num_chars # Returns "16\n" for 16-char display
+
+What: /sys/.../scroll_step_ms
+Date: October 2021
+KernelVersion: 5.16
+Description:
+ Controls the scrolling speed for messages longer than the display
+ width, specified in milliseconds per scroll step.
+
+ Setting to 0 disables scrolling. Default is 500ms.
+
+ Example:
+ echo "250" > scroll_step_ms # 4Hz scrolling
+ cat scroll_step_ms # Returns "250\n"
+
+What: /sys/.../map_seg7
+Date: January 2024
+KernelVersion: 6.9
+Description:
+ Read/write binary blob representing the ASCII-to-7-segment
+ display conversion table used by the linedisp driver, as defined
+ by struct seg7_conversion_map in <linux/map_to_7segment.h>.
+
+ Only visible on displays with 7-segment capability.
+
+ This attribute is not human-readable. Writes must match the
+ struct size exactly, else -EINVAL is returned; reads return the
+ entire mapping as a binary blob.
+
+ This interface and its implementation match existing conventions
+ used in segment-mapped display drivers since 2005.
+
+ ABI note: This style of binary sysfs attribute *is an exception*
+ to current "one value per file, text only" sysfs rules, for
+ historical compatibility and driver uniformity. New drivers are
+ discouraged from introducing additional binary sysfs ABIs.
+
+ Reference interface guidance:
+ - include/uapi/linux/map_to_7segment.h
+
+What: /sys/.../map_seg14
+Date: January 2024
+KernelVersion: 6.9
+Description:
+ Read/write binary blob representing the ASCII-to-14-segment
+ display conversion table used by the linedisp driver, as defined
+ by struct seg14_conversion_map in <linux/map_to_14segment.h>.
+
+ Only visible on displays with 14-segment capability.
+
+ This attribute is not human-readable. Writes must match the
+ struct size exactly, else -EINVAL is returned; reads return the
+ entire mapping as a binary blob.
+
+ This interface and its implementation match existing conventions
+ used by segment-mapped display drivers since 2005.
+
+ ABI note: This style of binary sysfs attribute *is an exception*
+ to current "one value per file, text only" sysfs rules, for
+ historical compatibility and driver uniformity. New drivers are
+ discouraged from introducing additional binary sysfs ABIs.
+
+ Reference interface guidance:
+ - include/uapi/linux/map_to_14segment.h
diff --git a/Documentation/ABI/testing/sysfs-block-bcache b/Documentation/ABI/testing/sysfs-block-bcache
index 9e4bbc5d51fd..9344a657ca70 100644
--- a/Documentation/ABI/testing/sysfs-block-bcache
+++ b/Documentation/ABI/testing/sysfs-block-bcache
@@ -106,13 +106,6 @@ Description:
will be discarded from the cache. Should not be turned off with
writeback caching enabled.
-What: /sys/block/<disk>/bcache/discard
-Date: November 2010
-Contact: Kent Overstreet <kent.overstreet@gmail.com>
-Description:
- For a cache, a boolean allowing discard/TRIM to be turned off
- or back on if the device supports it.
-
What: /sys/block/<disk>/bcache/bucket_size
Date: November 2010
Contact: Kent Overstreet <kent.overstreet@gmail.com>
diff --git a/Documentation/ABI/testing/sysfs-block-device b/Documentation/ABI/testing/sysfs-block-device
index 7ac7b19b2f72..2d543cfa4079 100644
--- a/Documentation/ABI/testing/sysfs-block-device
+++ b/Documentation/ABI/testing/sysfs-block-device
@@ -95,3 +95,25 @@ Description:
This file does not exist if the HBA driver does not implement
support for the SATA NCQ priority feature, regardless of the
device support for this feature.
+
+
+What: /sys/block/*/device/cdl_supported
+Date: May, 2023
+KernelVersion: v6.5
+Contact: linux-scsi@vger.kernel.org
+Description:
+ (RO) Indicates if the device supports the command duration
+ limits feature found in some ATA and SCSI devices.
+
+
+What: /sys/block/*/device/cdl_enable
+Date: May, 2023
+KernelVersion: v6.5
+Contact: linux-scsi@vger.kernel.org
+Description:
+ (RW) For a device supporting the command duration limits
+ feature, write to the file to turn on or off the feature.
+ By default this feature is turned off.
+ Writing "1" to this file enables the use of command duration
+ limits for read and write commands in the kernel and turns on
+ the feature on the device. Writing "0" disables the feature.
diff --git a/Documentation/ABI/testing/sysfs-block-zram b/Documentation/ABI/testing/sysfs-block-zram
index 628a00fb20a9..36c57de0a10a 100644
--- a/Documentation/ABI/testing/sysfs-block-zram
+++ b/Documentation/ABI/testing/sysfs-block-zram
@@ -22,14 +22,6 @@ Description:
device. The reset operation frees all the memory associated
with this device.
-What: /sys/block/zram<id>/max_comp_streams
-Date: February 2014
-Contact: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
-Description:
- The max_comp_streams file is read-write and specifies the
- number of backend's zcomp_strm compression streams (number of
- concurrent compress operations).
-
What: /sys/block/zram<id>/comp_algorithm
Date: February 2014
Contact: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
@@ -151,3 +143,10 @@ Contact: Sergey Senozhatsky <senozhatsky@chromium.org>
Description:
The recompress file is write-only and triggers re-compression
with secondary compression algorithms.
+
+What: /sys/block/zram<id>/algorithm_params
+Date: August 2024
+Contact: Sergey Senozhatsky <senozhatsky@chromium.org>
+Description:
+ The algorithm_params file is write-only and is used to setup
+ compression algorithm parameters.
diff --git a/Documentation/ABI/testing/sysfs-bus-acpi b/Documentation/ABI/testing/sysfs-bus-acpi
index 58abacf59b2a..6f2b907a8013 100644
--- a/Documentation/ABI/testing/sysfs-bus-acpi
+++ b/Documentation/ABI/testing/sysfs-bus-acpi
@@ -1,6 +1,6 @@
What: /sys/bus/acpi/devices/.../path
Date: December 2006
-Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
+Contact: Rafael J. Wysocki <rafael@kernel.org>
Description:
This attribute indicates the full path of ACPI namespace
object associated with the device object. For example,
@@ -12,7 +12,7 @@ Description:
What: /sys/bus/acpi/devices/.../modalias
Date: July 2007
-Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
+Contact: Rafael J. Wysocki <rafael@kernel.org>
Description:
This attribute indicates the PNP IDs of the device object.
That is acpi:HHHHHHHH:[CCCCCCC:]. Where each HHHHHHHH or
@@ -20,7 +20,7 @@ Description:
What: /sys/bus/acpi/devices/.../hid
Date: April 2005
-Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
+Contact: Rafael J. Wysocki <rafael@kernel.org>
Description:
This attribute indicates the hardware ID (_HID) of the
device object. For example, PNP0103.
@@ -29,14 +29,14 @@ Description:
What: /sys/bus/acpi/devices/.../description
Date: October 2012
-Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
+Contact: Rafael J. Wysocki <rafael@kernel.org>
Description:
This attribute contains the output of the device object's
_STR control method, if present.
What: /sys/bus/acpi/devices/.../adr
Date: October 2012
-Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
+Contact: Rafael J. Wysocki <rafael@kernel.org>
Description:
This attribute contains the output of the device object's
_ADR control method, which is present for ACPI device
@@ -45,14 +45,14 @@ Description:
What: /sys/bus/acpi/devices/.../uid
Date: October 2012
-Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
+Contact: Rafael J. Wysocki <rafael@kernel.org>
Description:
This attribute contains the output of the device object's
_UID control method, if present.
What: /sys/bus/acpi/devices/.../eject
Date: December 2006
-Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
+Contact: Rafael J. Wysocki <rafael@kernel.org>
Description:
Writing 1 to this attribute will trigger hot removal of
this device object. This file exists for every device
@@ -60,7 +60,7 @@ Description:
What: /sys/bus/acpi/devices/.../status
Date: Jan, 2014
-Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
+Contact: Rafael J. Wysocki <rafael@kernel.org>
Description:
(RO) Returns the ACPI device status: enabled, disabled or
functioning or present, if the method _STA is present.
@@ -90,7 +90,7 @@ Description:
What: /sys/bus/acpi/devices/.../hrv
Date: Apr, 2016
-Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
+Contact: Rafael J. Wysocki <rafael@kernel.org>
Description:
(RO) Allows users to read the hardware version of non-PCI
hardware, if the _HRV control method is present. It is mostly
diff --git a/Documentation/ABI/testing/sysfs-bus-auxiliary b/Documentation/ABI/testing/sysfs-bus-auxiliary
new file mode 100644
index 000000000000..cc856079690f
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-auxiliary
@@ -0,0 +1,9 @@
+What: /sys/bus/auxiliary/devices/.../irqs/
+Date: April, 2024
+Contact: Shay Drory <shayd@nvidia.com>
+Description:
+ The /sys/devices/.../irqs directory contains a variable set of
+ files, with each file is named as irq number similar to PCI PF
+ or VF's irq number located in msi_irqs directory.
+ These irq files are added and removed dynamically when an IRQ
+ is requested and freed respectively for the PCI SF.
diff --git a/Documentation/ABI/testing/sysfs-bus-cdx b/Documentation/ABI/testing/sysfs-bus-cdx
index 7af477f49998..e84277531414 100644
--- a/Documentation/ABI/testing/sysfs-bus-cdx
+++ b/Documentation/ABI/testing/sysfs-bus-cdx
@@ -28,14 +28,57 @@ Description:
of a device manufacturer.
Combination of Vendor ID and Device ID identifies a device.
+What: /sys/bus/cdx/devices/.../subsystem_vendor
+Date: July 2023
+Contact: puneet.gupta@amd.com
+Description:
+ Subsystem Vendor ID for this CDX device, in hexadecimal.
+ Subsystem Vendor ID is 16 bit identifier specific to the
+ card manufacturer.
+
+What: /sys/bus/cdx/devices/.../subsystem_device
+Date: July 2023
+Contact: puneet.gupta@amd.com
+Description:
+ Subsystem Device ID for this CDX device, in hexadecimal
+ Subsystem Device ID is 16 bit identifier specific to the
+ card manufacturer.
+
+What: /sys/bus/cdx/devices/.../class
+Date: July 2023
+Contact: puneet.gupta@amd.com
+Description:
+ This file contains the class of the CDX device, in hexadecimal.
+ Class is 24 bit identifier specifies the functionality of the device.
+
+What: /sys/bus/cdx/devices/.../revision
+Date: July 2023
+Contact: puneet.gupta@amd.com
+Description:
+ This file contains the revision field of the CDX device, in hexadecimal.
+ Revision is 8 bit revision identifier of the device.
+
+What: /sys/bus/cdx/devices/.../enable
+Date: October 2023
+Contact: abhijit.gangurde@amd.com
+Description:
+ CDX bus should be disabled before updating the devices in FPGA.
+ Writing n/0/off will attempt to disable the CDX bus and.
+ writing y/1/on will attempt to enable the CDX bus. Reading this file
+ gives the current state of the bus, 1 for enabled and 0 for disabled.
+
+ For example::
+
+ # echo 1 > /sys/bus/cdx/.../enable
+
What: /sys/bus/cdx/devices/.../reset
Date: March 2023
Contact: nipun.gupta@amd.com
Description:
- Writing y/1/on to this file resets the CDX device.
- On resetting the device, the corresponding driver is notified
- twice, once before the device is being reset, and again after
- the reset has been complete.
+ Writing y/1/on to this file resets the CDX device or all devices
+ on the bus. On resetting the device, the corresponding driver is
+ notified twice, once before the device is being reset, and again
+ after the reset has been complete.
For example::
@@ -54,3 +97,25 @@ Description:
For example::
# echo 1 > /sys/bus/cdx/devices/.../remove
+
+What: /sys/bus/cdx/devices/.../resource<N>
+Date: July 2023
+Contact: puneet.gupta@amd.com
+Description:
+ The resource binary file contains the content of the memory
+ regions. These files can be m'maped from userspace.
+
+What: /sys/bus/cdx/devices/.../modalias
+Date: July 2023
+Contact: nipun.gupta@amd.com
+Description:
+ This attribute indicates the CDX ID of the device.
+ That is in the format:
+ cdx:vXXXXdXXXXsvXXXXsdXXXXcXXXXXX,
+ where:
+
+ - vXXXX contains the vendor ID;
+ - dXXXX contains the device ID;
+ - svXXXX contains the subsystem vendor ID;
+ - sdXXXX contains the subsystem device ID;
+ - cXXXXXX contains the device class.
diff --git a/Documentation/ABI/testing/sysfs-bus-coreboot b/Documentation/ABI/testing/sysfs-bus-coreboot
index 9c5accecc470..8e8d6af24a4c 100644
--- a/Documentation/ABI/testing/sysfs-bus-coreboot
+++ b/Documentation/ABI/testing/sysfs-bus-coreboot
@@ -21,7 +21,7 @@ What: /sys/bus/coreboot/devices/cbmem-<id>/address
Date: August 2022
Contact: Jack Rosenthal <jrosenth@chromium.org>
Description:
- This is the pyhsical memory address that the CBMEM entry's data
+ This is the physical memory address that the CBMEM entry's data
begins at, in hexadecimal (e.g., ``0x76ffe000``).
What: /sys/bus/coreboot/devices/cbmem-<id>/size
diff --git a/Documentation/ABI/testing/sysfs-bus-coresight-devices-cti b/Documentation/ABI/testing/sysfs-bus-coresight-devices-cti
index bf2869c413e7..a2aef7f5a6d7 100644
--- a/Documentation/ABI/testing/sysfs-bus-coresight-devices-cti
+++ b/Documentation/ABI/testing/sysfs-bus-coresight-devices-cti
@@ -1,241 +1,247 @@
What: /sys/bus/coresight/devices/<cti-name>/enable
Date: March 2020
-KernelVersion 5.7
+KernelVersion: 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (RW) Enable/Disable the CTI hardware.
What: /sys/bus/coresight/devices/<cti-name>/powered
Date: March 2020
-KernelVersion 5.7
+KernelVersion: 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Read) Indicate if the CTI hardware is powered.
What: /sys/bus/coresight/devices/<cti-name>/ctmid
Date: March 2020
-KernelVersion 5.7
+KernelVersion: 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Read) Display the associated CTM ID
What: /sys/bus/coresight/devices/<cti-name>/nr_trigger_cons
Date: March 2020
-KernelVersion 5.7
+KernelVersion: 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Read) Number of devices connected to triggers on this CTI
What: /sys/bus/coresight/devices/<cti-name>/triggers<N>/name
Date: March 2020
-KernelVersion 5.7
+KernelVersion: 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Read) Name of connected device <N>
What: /sys/bus/coresight/devices/<cti-name>/triggers<N>/in_signals
Date: March 2020
-KernelVersion 5.7
+KernelVersion: 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Read) Input trigger signals from connected device <N>
What: /sys/bus/coresight/devices/<cti-name>/triggers<N>/in_types
Date: March 2020
-KernelVersion 5.7
+KernelVersion: 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Read) Functional types for the input trigger signals
from connected device <N>
What: /sys/bus/coresight/devices/<cti-name>/triggers<N>/out_signals
Date: March 2020
-KernelVersion 5.7
+KernelVersion: 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Read) Output trigger signals to connected device <N>
What: /sys/bus/coresight/devices/<cti-name>/triggers<N>/out_types
Date: March 2020
-KernelVersion 5.7
+KernelVersion: 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Read) Functional types for the output trigger signals
to connected device <N>
What: /sys/bus/coresight/devices/<cti-name>/regs/inout_sel
Date: March 2020
-KernelVersion 5.7
+KernelVersion: 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (RW) Select the index for inen and outen registers.
What: /sys/bus/coresight/devices/<cti-name>/regs/inen
Date: March 2020
-KernelVersion 5.7
+KernelVersion: 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (RW) Read or write the CTIINEN register selected by inout_sel.
What: /sys/bus/coresight/devices/<cti-name>/regs/outen
Date: March 2020
-KernelVersion 5.7
+KernelVersion: 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (RW) Read or write the CTIOUTEN register selected by inout_sel.
What: /sys/bus/coresight/devices/<cti-name>/regs/gate
Date: March 2020
-KernelVersion 5.7
+KernelVersion: 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (RW) Read or write CTIGATE register.
What: /sys/bus/coresight/devices/<cti-name>/regs/asicctl
Date: March 2020
-KernelVersion 5.7
+KernelVersion: 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (RW) Read or write ASICCTL register.
What: /sys/bus/coresight/devices/<cti-name>/regs/intack
Date: March 2020
-KernelVersion 5.7
+KernelVersion: 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Write) Write the INTACK register.
What: /sys/bus/coresight/devices/<cti-name>/regs/appset
Date: March 2020
-KernelVersion 5.7
+KernelVersion: 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (RW) Set CTIAPPSET register to activate channel. Read back to
determine current value of register.
What: /sys/bus/coresight/devices/<cti-name>/regs/appclear
Date: March 2020
-KernelVersion 5.7
+KernelVersion: 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Write) Write APPCLEAR register to deactivate channel.
What: /sys/bus/coresight/devices/<cti-name>/regs/apppulse
Date: March 2020
-KernelVersion 5.7
+KernelVersion: 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Write) Write APPPULSE to pulse a channel active for one clock
cycle.
What: /sys/bus/coresight/devices/<cti-name>/regs/chinstatus
Date: March 2020
-KernelVersion 5.7
+KernelVersion: 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Read) Read current status of channel inputs.
What: /sys/bus/coresight/devices/<cti-name>/regs/choutstatus
Date: March 2020
-KernelVersion 5.7
+KernelVersion: 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Read) read current status of channel outputs.
What: /sys/bus/coresight/devices/<cti-name>/regs/triginstatus
Date: March 2020
-KernelVersion 5.7
+KernelVersion: 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Read) read current status of input trigger signals
What: /sys/bus/coresight/devices/<cti-name>/regs/trigoutstatus
Date: March 2020
-KernelVersion 5.7
+KernelVersion: 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Read) read current status of output trigger signals.
What: /sys/bus/coresight/devices/<cti-name>/channels/trigin_attach
Date: March 2020
-KernelVersion 5.7
+KernelVersion: 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Write) Attach a CTI input trigger to a CTM channel.
What: /sys/bus/coresight/devices/<cti-name>/channels/trigin_detach
Date: March 2020
-KernelVersion 5.7
+KernelVersion: 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Write) Detach a CTI input trigger from a CTM channel.
What: /sys/bus/coresight/devices/<cti-name>/channels/trigout_attach
Date: March 2020
-KernelVersion 5.7
+KernelVersion: 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Write) Attach a CTI output trigger to a CTM channel.
What: /sys/bus/coresight/devices/<cti-name>/channels/trigout_detach
Date: March 2020
-KernelVersion 5.7
+KernelVersion: 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Write) Detach a CTI output trigger from a CTM channel.
What: /sys/bus/coresight/devices/<cti-name>/channels/chan_gate_enable
Date: March 2020
-KernelVersion 5.7
+KernelVersion: 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (RW) Enable CTIGATE for single channel (Write) or list enabled
channels through the gate (R).
What: /sys/bus/coresight/devices/<cti-name>/channels/chan_gate_disable
Date: March 2020
-KernelVersion 5.7
+KernelVersion: 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Write) Disable CTIGATE for single channel.
What: /sys/bus/coresight/devices/<cti-name>/channels/chan_set
Date: March 2020
-KernelVersion 5.7
+KernelVersion: 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Write) Activate a single channel.
What: /sys/bus/coresight/devices/<cti-name>/channels/chan_clear
Date: March 2020
-KernelVersion 5.7
+KernelVersion: 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Write) Deactivate a single channel.
What: /sys/bus/coresight/devices/<cti-name>/channels/chan_pulse
Date: March 2020
-KernelVersion 5.7
+KernelVersion: 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Write) Pulse a single channel - activate for a single clock cycle.
What: /sys/bus/coresight/devices/<cti-name>/channels/trigout_filtered
Date: March 2020
-KernelVersion 5.7
+KernelVersion: 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Read) List of output triggers filtered across all connections.
What: /sys/bus/coresight/devices/<cti-name>/channels/trig_filter_enable
Date: March 2020
-KernelVersion 5.7
+KernelVersion: 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (RW) Enable or disable trigger output signal filtering.
What: /sys/bus/coresight/devices/<cti-name>/channels/chan_inuse
Date: March 2020
-KernelVersion 5.7
+KernelVersion: 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Read) show channels with at least one attached trigger signal.
What: /sys/bus/coresight/devices/<cti-name>/channels/chan_free
Date: March 2020
-KernelVersion 5.7
+KernelVersion: 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Read) show channels with no attached trigger signals.
What: /sys/bus/coresight/devices/<cti-name>/channels/chan_xtrigs_sel
Date: March 2020
-KernelVersion 5.7
+KernelVersion: 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (RW) Write channel number to select a channel to view, read to
see selected channel number.
What: /sys/bus/coresight/devices/<cti-name>/channels/chan_xtrigs_in
Date: March 2020
-KernelVersion 5.7
+KernelVersion: 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Read) Read to see input triggers connected to selected view
channel.
What: /sys/bus/coresight/devices/<cti-name>/channels/chan_xtrigs_out
Date: March 2020
-KernelVersion 5.7
+KernelVersion: 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Read) Read to see output triggers connected to selected view
channel.
What: /sys/bus/coresight/devices/<cti-name>/channels/chan_xtrigs_reset
Date: March 2020
-KernelVersion 5.7
+KernelVersion: 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Write) Clear all channel / trigger programming.
+
+What: /sys/bus/coresight/devices/<cti-name>/label
+Date: Aug 2025
+KernelVersion 6.18
+Contact: Mao Jinlong <quic_jinlmao@quicinc.com>
+Description: (Read) Show hardware context information of device.
diff --git a/Documentation/ABI/testing/sysfs-bus-coresight-devices-dummy-source b/Documentation/ABI/testing/sysfs-bus-coresight-devices-dummy-source
new file mode 100644
index 000000000000..321e3ee1fc9d
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-coresight-devices-dummy-source
@@ -0,0 +1,21 @@
+What: /sys/bus/coresight/devices/dummy_source<N>/enable_source
+Date: Dec 2024
+KernelVersion: 6.14
+Contact: Mao Jinlong <quic_jinlmao@quicinc.com>
+Description: (RW) Enable/disable tracing of dummy source. A sink should be activated
+ before enabling the source. The path of coresight components linking
+ the source to the sink is configured and managed automatically by the
+ coresight framework.
+
+What: /sys/bus/coresight/devices/dummy_source<N>/traceid
+Date: Dec 2024
+KernelVersion: 6.14
+Contact: Mao Jinlong <quic_jinlmao@quicinc.com>
+Description: (R) Show the trace ID that will appear in the trace stream
+ coming from this trace entity.
+
+What: /sys/bus/coresight/devices/dummy_source<N>/label
+Date: Aug 2025
+KernelVersion 6.18
+Contact: Mao Jinlong <quic_jinlmao@quicinc.com>
+Description: (Read) Show hardware context information of device.
diff --git a/Documentation/ABI/testing/sysfs-bus-coresight-devices-etb10 b/Documentation/ABI/testing/sysfs-bus-coresight-devices-etb10
index 9a383f6a74eb..f30526949687 100644
--- a/Documentation/ABI/testing/sysfs-bus-coresight-devices-etb10
+++ b/Documentation/ABI/testing/sysfs-bus-coresight-devices-etb10
@@ -19,6 +19,12 @@ Description: (RW) Disables write access to the Trace RAM by stopping the
into the Trace RAM following the trigger event is equal to the
value stored in this register+1 (from ARM ETB-TRM).
+What: /sys/bus/coresight/devices/<memory_map>.etb/label
+Date: Aug 2025
+KernelVersion 6.18
+Contact: Mao Jinlong <quic_jinlmao@quicinc.com>
+Description: (Read) Show hardware context information of device.
+
What: /sys/bus/coresight/devices/<memory_map>.etb/mgmt/rdp
Date: March 2016
KernelVersion: 4.7
diff --git a/Documentation/ABI/testing/sysfs-bus-coresight-devices-etm3x b/Documentation/ABI/testing/sysfs-bus-coresight-devices-etm3x
index 234c33fbdb55..245c322c91f1 100644
--- a/Documentation/ABI/testing/sysfs-bus-coresight-devices-etm3x
+++ b/Documentation/ABI/testing/sysfs-bus-coresight-devices-etm3x
@@ -22,7 +22,7 @@ Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RW) Used in conjunction with @addr_idx. Specifies
characteristics about the address comparator being configure,
for example the access type, the kind of instruction to trace,
- processor contect ID to trigger on, etc. Individual fields in
+ processor context ID to trigger on, etc. Individual fields in
the access type register may vary on the version of the trace
entity.
@@ -31,7 +31,7 @@ Date: November 2014
KernelVersion: 3.19
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RW) Used in conjunction with @addr_idx. Specifies the range of
- addresses to trigger on. Inclusion or exclusion is specificed
+ addresses to trigger on. Inclusion or exclusion is specified
in the corresponding access type register.
What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/addr_single
@@ -251,6 +251,12 @@ KernelVersion: 4.4
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RO) Holds the cpu number this tracer is affined to.
+What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/label
+Date: Aug 2025
+KernelVersion 6.18
+Contact: Mao Jinlong <quic_jinlmao@quicinc.com>
+Description: (Read) Show hardware context information of device.
+
What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/mgmt/etmccr
Date: September 2015
KernelVersion: 4.4
@@ -304,19 +310,19 @@ What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/mgmt/etmtsscr
Date: September 2015
KernelVersion: 4.4
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
-Description: (RO) Print the content of the ETM Trace Start/Stop Conrol
+Description: (RO) Print the content of the ETM Trace Start/Stop Control
register (0x018). The value is read directly from the HW.
What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/mgmt/etmtecr1
Date: September 2015
KernelVersion: 4.4
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
-Description: (RO) Print the content of the ETM Enable Conrol #1
+Description: (RO) Print the content of the ETM Enable Control #1
register (0x024). The value is read directly from the HW.
What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/mgmt/etmtecr2
Date: September 2015
KernelVersion: 4.4
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
-Description: (RO) Print the content of the ETM Enable Conrol #2
+Description: (RO) Print the content of the ETM Enable Control #2
register (0x01c). The value is read directly from the HW.
diff --git a/Documentation/ABI/testing/sysfs-bus-coresight-devices-etm4x b/Documentation/ABI/testing/sysfs-bus-coresight-devices-etm4x
index 08b1964f27d3..6f19a6a5f2e1 100644
--- a/Documentation/ABI/testing/sysfs-bus-coresight-devices-etm4x
+++ b/Documentation/ABI/testing/sysfs-bus-coresight-devices-etm4x
@@ -329,6 +329,12 @@ Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RW) Access the selected single show PE comparator control
register.
+What: /sys/bus/coresight/devices/etm<N>/label
+Date: Aug 2025
+KernelVersion 6.18
+Contact: Mao Jinlong <quic_jinlmao@quicinc.com>
+Description: (Read) Show hardware context information of device.
+
What: /sys/bus/coresight/devices/etm<N>/mgmt/trcoslsr
Date: April 2015
KernelVersion: 4.01
@@ -446,7 +452,7 @@ Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Returns the maximum size of the data value, data address,
- VMID, context ID and instuction address in the trace unit
+ VMID, context ID and instruction address in the trace unit
(0x1E8). The value is taken directly from the HW.
What: /sys/bus/coresight/devices/etm<N>/trcidr/trcidr3
diff --git a/Documentation/ABI/testing/sysfs-bus-coresight-devices-funnel b/Documentation/ABI/testing/sysfs-bus-coresight-devices-funnel
index d75acda5e1b3..86938e9bbcde 100644
--- a/Documentation/ABI/testing/sysfs-bus-coresight-devices-funnel
+++ b/Documentation/ABI/testing/sysfs-bus-coresight-devices-funnel
@@ -10,3 +10,9 @@ Date: November 2014
KernelVersion: 3.19
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RW) Defines input port priority order.
+
+What: /sys/bus/coresight/devices/<memory_map>.funnel/label
+Date: Aug 2025
+KernelVersion 6.18
+Contact: Mao Jinlong <quic_jinlmao@quicinc.com>
+Description: (Read) Show hardware context information of device.
diff --git a/Documentation/ABI/testing/sysfs-bus-coresight-devices-stm b/Documentation/ABI/testing/sysfs-bus-coresight-devices-stm
index 53e1f4815d64..848e2ffc1480 100644
--- a/Documentation/ABI/testing/sysfs-bus-coresight-devices-stm
+++ b/Documentation/ABI/testing/sysfs-bus-coresight-devices-stm
@@ -51,3 +51,9 @@ KernelVersion: 4.7
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RW) Holds the trace ID that will appear in the trace stream
coming from this trace entity.
+
+What: /sys/bus/coresight/devices/<memory_map>.stm/label
+Date: Aug 2025
+KernelVersion 6.18
+Contact: Mao Jinlong <quic_jinlmao@quicinc.com>
+Description: (Read) Show hardware context information of device.
diff --git a/Documentation/ABI/testing/sysfs-bus-coresight-devices-tmc b/Documentation/ABI/testing/sysfs-bus-coresight-devices-tmc
index 6aa527296c71..55e298b9c4a4 100644
--- a/Documentation/ABI/testing/sysfs-bus-coresight-devices-tmc
+++ b/Documentation/ABI/testing/sysfs-bus-coresight-devices-tmc
@@ -91,3 +91,25 @@ Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RW) Size of the trace buffer for TMC-ETR when used in SYSFS
mode. Writable only for TMC-ETR configurations. The value
should be aligned to the kernel pagesize.
+
+What: /sys/bus/coresight/devices/<memory_map>.tmc/buf_modes_available
+Date: August 2023
+KernelVersion: 6.7
+Contact: Anshuman Khandual <anshuman.khandual@arm.com>
+Description: (Read) Shows all supported Coresight TMC-ETR buffer modes available
+ for the users to configure explicitly. This file is available only
+ for TMC ETR devices.
+
+What: /sys/bus/coresight/devices/<memory_map>.tmc/buf_mode_preferred
+Date: August 2023
+KernelVersion: 6.7
+Contact: Anshuman Khandual <anshuman.khandual@arm.com>
+Description: (RW) Current Coresight TMC-ETR buffer mode selected. But user could
+ only provide a mode which is supported for a given ETR device. This
+ file is available only for TMC ETR devices.
+
+What: /sys/bus/coresight/devices/<memory_map>.tmc/label
+Date: Aug 2025
+KernelVersion 6.18
+Contact: Mao Jinlong <quic_jinlmao@quicinc.com>
+Description: (Read) Show hardware context information of device.
diff --git a/Documentation/ABI/testing/sysfs-bus-coresight-devices-tpdm b/Documentation/ABI/testing/sysfs-bus-coresight-devices-tpdm
index 4a58e649550d..98f1c6545027 100644
--- a/Documentation/ABI/testing/sysfs-bus-coresight-devices-tpdm
+++ b/Documentation/ABI/testing/sysfs-bus-coresight-devices-tpdm
@@ -1,6 +1,6 @@
What: /sys/bus/coresight/devices/<tpdm-name>/integration_test
Date: January 2023
-KernelVersion 6.2
+KernelVersion: 6.2
Contact: Jinlong Mao (QUIC) <quic_jinlmao@quicinc.com>, Tao Zhang (QUIC) <quic_taozha@quicinc.com>
Description:
(Write) Run integration test for tpdm. Integration test
@@ -11,3 +11,270 @@ Description:
Accepts only one of the 2 values - 1 or 2.
1 : Generate 64 bits data
2 : Generate 32 bits data
+
+What: /sys/bus/coresight/devices/<tpdm-name>/reset_dataset
+Date: March 2023
+KernelVersion: 6.7
+Contact: Jinlong Mao (QUIC) <quic_jinlmao@quicinc.com>, Tao Zhang (QUIC) <quic_taozha@quicinc.com>
+Description:
+ (Write) Reset the dataset of the tpdm.
+
+ Accepts only one value - 1.
+ 1 : Reset the dataset of the tpdm
+
+What: /sys/bus/coresight/devices/<tpdm-name>/dsb_trig_type
+Date: March 2023
+KernelVersion: 6.7
+Contact: Jinlong Mao (QUIC) <quic_jinlmao@quicinc.com>, Tao Zhang (QUIC) <quic_taozha@quicinc.com>
+Description:
+ (RW) Set/Get the trigger type of the DSB for tpdm.
+
+ Accepts only one of the 2 values - 0 or 1.
+ 0 : Set the DSB trigger type to false
+ 1 : Set the DSB trigger type to true
+
+What: /sys/bus/coresight/devices/<tpdm-name>/dsb_trig_ts
+Date: March 2023
+KernelVersion: 6.7
+Contact: Jinlong Mao (QUIC) <quic_jinlmao@quicinc.com>, Tao Zhang (QUIC) <quic_taozha@quicinc.com>
+Description:
+ (RW) Set/Get the trigger timestamp of the DSB for tpdm.
+
+ Accepts only one of the 2 values - 0 or 1.
+ 0 : Set the DSB trigger type to false
+ 1 : Set the DSB trigger type to true
+
+What: /sys/bus/coresight/devices/<tpdm-name>/dsb_mode
+Date: March 2023
+KernelVersion: 6.7
+Contact: Jinlong Mao (QUIC) <quic_jinlmao@quicinc.com>, Tao Zhang (QUIC) <quic_taozha@quicinc.com>
+Description:
+ (RW) Set/Get the programming mode of the DSB for tpdm.
+
+ Accepts the value needs to be greater than 0. What data
+ bits do is listed below.
+ Bit[0:1] : Test mode control bit for choosing the inputs.
+ Bit[3] : Set to 0 for low performance mode. Set to 1 for high
+ performance mode.
+ Bit[4:8] : Select byte lane for high performance mode.
+
+What: /sys/bus/coresight/devices/<tpdm-name>/dsb_edge/ctrl_idx
+Date: March 2023
+KernelVersion: 6.7
+Contact: Jinlong Mao (QUIC) <quic_jinlmao@quicinc.com>, Tao Zhang (QUIC) <quic_taozha@quicinc.com>
+Description:
+ (RW) Set/Get the index number of the edge detection for the DSB
+ subunit TPDM. Since there are at most 256 edge detections, this
+ value ranges from 0 to 255.
+
+What: /sys/bus/coresight/devices/<tpdm-name>/dsb_edge/ctrl_val
+Date: March 2023
+KernelVersion: 6.7
+Contact: Jinlong Mao (QUIC) <quic_jinlmao@quicinc.com>, Tao Zhang (QUIC) <quic_taozha@quicinc.com>
+Description:
+ Write a data to control the edge detection corresponding to
+ the index number. Before writing data to this sysfs file,
+ "ctrl_idx" should be written first to configure the index
+ number of the edge detection which needs to be controlled.
+
+ Accepts only one of the following values.
+ 0 - Rising edge detection
+ 1 - Falling edge detection
+ 2 - Rising and falling edge detection (toggle detection)
+
+
+What: /sys/bus/coresight/devices/<tpdm-name>/dsb_edge/ctrl_mask
+Date: March 2023
+KernelVersion: 6.7
+Contact: Jinlong Mao (QUIC) <quic_jinlmao@quicinc.com>, Tao Zhang (QUIC) <quic_taozha@quicinc.com>
+Description:
+ Write a data to mask the edge detection corresponding to the index
+ number. Before writing data to this sysfs file, "ctrl_idx" should
+ be written first to configure the index number of the edge detection
+ which needs to be masked.
+
+ Accepts only one of the 2 values - 0 or 1.
+
+What: /sys/bus/coresight/devices/<tpdm-name>/dsb_edge/edcr[0:15]
+Date: March 2023
+KernelVersion: 6.7
+Contact: Jinlong Mao (QUIC) <quic_jinlmao@quicinc.com>, Tao Zhang (QUIC) <quic_taozha@quicinc.com>
+Description:
+ Read a set of the edge control value of the DSB in TPDM.
+
+What: /sys/bus/coresight/devices/<tpdm-name>/dsb_edge/edcmr[0:7]
+Date: March 2023
+KernelVersion: 6.7
+Contact: Jinlong Mao (QUIC) <quic_jinlmao@quicinc.com>, Tao Zhang (QUIC) <quic_taozha@quicinc.com>
+Description:
+ Read a set of the edge control mask of the DSB in TPDM.
+
+What: /sys/bus/coresight/devices/<tpdm-name>/dsb_trig_patt/xpr[0:7]
+Date: March 2023
+KernelVersion: 6.7
+Contact: Jinlong Mao (QUIC) <quic_jinlmao@quicinc.com>, Tao Zhang (QUIC) <quic_taozha@quicinc.com>
+Description:
+ (RW) Set/Get the value of the trigger pattern for the DSB
+ subunit TPDM.
+
+What: /sys/bus/coresight/devices/<tpdm-name>/dsb_trig_patt/xpmr[0:7]
+Date: March 2023
+KernelVersion: 6.7
+Contact: Jinlong Mao (QUIC) <quic_jinlmao@quicinc.com>, Tao Zhang (QUIC) <quic_taozha@quicinc.com>
+Description:
+ (RW) Set/Get the mask of the trigger pattern for the DSB
+ subunit TPDM.
+
+What: /sys/bus/coresight/devices/<tpdm-name>/dsb_patt/tpr[0:7]
+Date: March 2023
+KernelVersion: 6.7
+Contact: Jinlong Mao (QUIC) <quic_jinlmao@quicinc.com>, Tao Zhang (QUIC) <quic_taozha@quicinc.com>
+Description:
+ (RW) Set/Get the value of the pattern for the DSB subunit TPDM.
+
+What: /sys/bus/coresight/devices/<tpdm-name>/dsb_patt/tpmr[0:7]
+Date: March 2023
+KernelVersion: 6.7
+Contact: Jinlong Mao (QUIC) <quic_jinlmao@quicinc.com>, Tao Zhang (QUIC) <quic_taozha@quicinc.com>
+Description:
+ (RW) Set/Get the mask of the pattern for the DSB subunit TPDM.
+
+What: /sys/bus/coresight/devices/<tpdm-name>/dsb_patt/enable_ts
+Date: March 2023
+KernelVersion: 6.7
+Contact: Jinlong Mao (QUIC) <quic_jinlmao@quicinc.com>, Tao Zhang (QUIC) <quic_taozha@quicinc.com>
+Description:
+ (Write) Set the pattern timestamp of DSB tpdm. Read
+ the pattern timestamp of DSB tpdm.
+
+ Accepts only one of the 2 values - 0 or 1.
+ 0 : Disable DSB pattern timestamp.
+ 1 : Enable DSB pattern timestamp.
+
+What: /sys/bus/coresight/devices/<tpdm-name>/dsb_patt/set_type
+Date: March 2023
+KernelVersion: 6.7
+Contact: Jinlong Mao (QUIC) <quic_jinlmao@quicinc.com>, Tao Zhang (QUIC) <quic_taozha@quicinc.com>
+Description:
+ (Write) Set the pattern type of DSB tpdm. Read
+ the pattern type of DSB tpdm.
+
+ Accepts only one of the 2 values - 0 or 1.
+ 0 : Set the DSB pattern type to value.
+ 1 : Set the DSB pattern type to toggle.
+
+What: /sys/bus/coresight/devices/<tpdm-name>/dsb_msr/msr[0:31]
+Date: March 2023
+KernelVersion: 6.7
+Contact: Jinlong Mao (QUIC) <quic_jinlmao@quicinc.com>, Tao Zhang (QUIC) <quic_taozha@quicinc.com>
+Description:
+ (RW) Set/Get the MSR(mux select register) for the DSB subunit
+ TPDM.
+
+What: /sys/bus/coresight/devices/<tpdm-name>/cmb_mode
+Date: January 2024
+KernelVersion: 6.9
+Contact: Jinlong Mao (QUIC) <quic_jinlmao@quicinc.com>, Tao Zhang (QUIC) <quic_taozha@quicinc.com>
+Description: (Write) Set the data collection mode of CMB tpdm. Continuous
+ change creates CMB data set elements on every CMBCLK edge.
+ Trace-on-change creates CMB data set elements only when a new
+ data set element differs in value from the previous element
+ in a CMB data set.
+
+ Accepts only one of the 2 values - 0 or 1.
+ 0 : Continuous CMB collection mode.
+ 1 : Trace-on-change CMB collection mode.
+
+What: /sys/bus/coresight/devices/<tpdm-name>/cmb_trig_patt/xpr[0:1]
+Date: January 2024
+KernelVersion: 6.9
+Contact: Jinlong Mao (QUIC) <quic_jinlmao@quicinc.com>, Tao Zhang (QUIC) <quic_taozha@quicinc.com>
+Description:
+ (RW) Set/Get the value of the trigger pattern for the CMB
+ subunit TPDM.
+
+What: /sys/bus/coresight/devices/<tpdm-name>/cmb_trig_patt/xpmr[0:1]
+Date: January 2024
+KernelVersion: 6.9
+Contact: Jinlong Mao (QUIC) <quic_jinlmao@quicinc.com>, Tao Zhang (QUIC) <quic_taozha@quicinc.com>
+Description:
+ (RW) Set/Get the mask of the trigger pattern for the CMB
+ subunit TPDM.
+
+What: /sys/bus/coresight/devices/<tpdm-name>/dsb_patt/tpr[0:1]
+Date: January 2024
+KernelVersion: 6.9
+Contact: Jinlong Mao (QUIC) <quic_jinlmao@quicinc.com>, Tao Zhang (QUIC) <quic_taozha@quicinc.com>
+Description:
+ (RW) Set/Get the value of the pattern for the CMB subunit TPDM.
+
+What: /sys/bus/coresight/devices/<tpdm-name>/dsb_patt/tpmr[0:1]
+Date: January 2024
+KernelVersion: 6.9
+Contact: Jinlong Mao (QUIC) <quic_jinlmao@quicinc.com>, Tao Zhang (QUIC) <quic_taozha@quicinc.com>
+Description:
+ (RW) Set/Get the mask of the pattern for the CMB subunit TPDM.
+
+What: /sys/bus/coresight/devices/<tpdm-name>/cmb_patt/enable_ts
+Date: January 2024
+KernelVersion: 6.9
+Contact: Jinlong Mao (QUIC) <quic_jinlmao@quicinc.com>, Tao Zhang (QUIC) <quic_taozha@quicinc.com>
+Description:
+ (Write) Set the pattern timestamp of CMB tpdm. Read
+ the pattern timestamp of CMB tpdm.
+
+ Accepts only one of the 2 values - 0 or 1.
+ 0 : Disable CMB pattern timestamp.
+ 1 : Enable CMB pattern timestamp.
+
+What: /sys/bus/coresight/devices/<tpdm-name>/cmb_trig_ts
+Date: January 2024
+KernelVersion: 6.9
+Contact: Jinlong Mao (QUIC) <quic_jinlmao@quicinc.com>, Tao Zhang (QUIC) <quic_taozha@quicinc.com>
+Description:
+ (RW) Set/Get the trigger timestamp of the CMB for tpdm.
+
+ Accepts only one of the 2 values - 0 or 1.
+ 0 : Set the CMB trigger type to false
+ 1 : Set the CMB trigger type to true
+
+What: /sys/bus/coresight/devices/<tpdm-name>/cmb_ts_all
+Date: January 2024
+KernelVersion: 6.9
+Contact: Jinlong Mao (QUIC) <quic_jinlmao@quicinc.com>, Tao Zhang (QUIC) <quic_taozha@quicinc.com>
+Description:
+ (RW) Read or write the status of timestamp upon all interface.
+ Only value 0 and 1 can be written to this node. Set this node to 1 to request
+ timestamp to all trace packet.
+ Accepts only one of the 2 values - 0 or 1.
+ 0 : Disable the timestamp of all trace packets.
+ 1 : Enable the timestamp of all trace packets.
+
+What: /sys/bus/coresight/devices/<tpdm-name>/cmb_msr/msr[0:31]
+Date: January 2024
+KernelVersion: 6.9
+Contact: Jinlong Mao (QUIC) <quic_jinlmao@quicinc.com>, Tao Zhang (QUIC) <quic_taozha@quicinc.com>
+Description:
+ (RW) Set/Get the MSR(mux select register) for the CMB subunit
+ TPDM.
+
+What: /sys/bus/coresight/devices/<tpdm-name>/mcmb_trig_lane
+Date: Feb 2025
+KernelVersion 6.15
+Contact: Jinlong Mao (QUIC) <quic_jinlmao@quicinc.com>, Tao Zhang (QUIC) <quic_taozha@quicinc.com>
+Description:
+ (RW) Set/Get which lane participates in the output pattern
+ match cross trigger mechanism for the MCMB subunit TPDM.
+
+What: /sys/bus/coresight/devices/<tpdm-name>/mcmb_lanes_select
+Date: Feb 2025
+KernelVersion 6.15
+Contact: Jinlong Mao (QUIC) <quic_jinlmao@quicinc.com>, Tao Zhang (QUIC) <quic_taozha@quicinc.com>
+Description:
+ (RW) Set/Get the enablement of the individual lane.
+
+What: /sys/bus/coresight/devices/<tpdm-name>/label
+Date: Aug 2025
+KernelVersion 6.18
+Contact: Mao Jinlong <quic_jinlmao@quicinc.com>
+Description: (Read) Show hardware context information of device.
diff --git a/Documentation/ABI/testing/sysfs-bus-coresight-devices-trbe b/Documentation/ABI/testing/sysfs-bus-coresight-devices-trbe
index ad3bbc6fa751..8a4b749ed26e 100644
--- a/Documentation/ABI/testing/sysfs-bus-coresight-devices-trbe
+++ b/Documentation/ABI/testing/sysfs-bus-coresight-devices-trbe
@@ -12,3 +12,9 @@ Contact: Anshuman Khandual <anshuman.khandual@arm.com>
Description: (Read) Shows if TRBE updates in the memory are with access
and dirty flag updates as well. This value is fetched from
the TRBIDR register.
+
+What: /sys/bus/coresight/devices/trbe<cpu>/label
+Date: Aug 2025
+KernelVersion 6.18
+Contact: Mao Jinlong <quic_jinlmao@quicinc.com>
+Description: (Read) Show hardware context information of device.
diff --git a/Documentation/ABI/testing/sysfs-bus-counter b/Documentation/ABI/testing/sysfs-bus-counter
index 1417c4272c6c..3e7eddd8aff3 100644
--- a/Documentation/ABI/testing/sysfs-bus-counter
+++ b/Documentation/ABI/testing/sysfs-bus-counter
@@ -22,11 +22,11 @@ Description:
phase clock.
What: /sys/bus/counter/devices/counterX/external_input_phase_clock_select_available
-KernelVersion: 6.4
-Contact: linux-iio@vger.kernel.org
+KernelVersion: 6.4
+Contact: linux-iio@vger.kernel.org
Description:
- Discrete set of available values for the respective device
- configuration are listed in this file.
+ Discrete set of available values for the respective device
+ configuration are listed in this file.
What: /sys/bus/counter/devices/counterX/countY/count
KernelVersion: 5.2
@@ -34,6 +34,14 @@ Contact: linux-iio@vger.kernel.org
Description:
Count data of Count Y represented as a string.
+What: /sys/bus/counter/devices/counterX/countY/compare
+KernelVersion: 6.15
+Contact: linux-iio@vger.kernel.org
+Description:
+ If the counter device supports compare registers -- registers
+ used to compare counter channels against a particular count --
+ the compare count for channel Y is provided by this attribute.
+
What: /sys/bus/counter/devices/counterX/countY/capture
KernelVersion: 6.1
Contact: linux-iio@vger.kernel.org
@@ -90,6 +98,60 @@ Description:
counter does not freeze at the boundary points, but
counts continuously throughout.
+ interrupt on terminal count:
+ The output signal is initially low, and will remain low
+ until the counter reaches zero. The output signal then
+ goes high and remains high until a new preset value is
+ set.
+
+ hardware retriggerable one-shot:
+ The output signal is initially high. The output signal
+ will go low by a trigger input signal, and will remain
+ low until the counter reaches zero. The output will then
+ go high and remain high until the next trigger. A
+ trigger results in loading the counter to the preset
+ value and setting the output signal low, thus starting
+ the one-shot pulse.
+
+ rate generator:
+ The output signal is initially high. When the counter
+ has decremented to 1, the output signal goes low for one
+ clock pulse. The output signal then goes high again, the
+ counter is reloaded to the preset value, and the process
+ repeats in a periodic manner as such.
+
+ square wave mode:
+ The output signal is initially high.
+
+ If the initial count is even, the counter is decremented
+ by two on succeeding clock pulses. When the count
+ expires, the output signal changes value and the
+ counter is reloaded to the preset value. The process
+ repeats in periodic manner as such.
+
+ If the initial count is odd, the initial count minus one
+ (an even number) is loaded and then is decremented by
+ two on succeeding clock pulses. One clock pulse after
+ the count expires, the output signal goes low and the
+ counter is reloaded to the preset value minus one.
+ Succeeding clock pulses decrement the count by two. When
+ the count expires, the output goes high again and the
+ counter is reloaded to the preset value minus one. The
+ process repeats in a periodic manner as such.
+
+ software triggered strobe:
+ The output signal is initially high. When the count
+ expires, the output will go low for one clock pulse and
+ then go high again. The counting sequence is "triggered"
+ by setting the preset value.
+
+ hardware triggered strobe:
+ The output signal is initially high. Counting is started
+ by a trigger input signal. When the count expires, the
+ output signal will go low for one clock pulse and then
+ go high again. A trigger results in loading the counter
+ to the preset value.
+
What: /sys/bus/counter/devices/counterX/countY/count_mode_available
What: /sys/bus/counter/devices/counterX/countY/error_noise_available
What: /sys/bus/counter/devices/counterX/countY/function_available
@@ -249,23 +311,24 @@ What: /sys/bus/counter/devices/counterX/cascade_counts_enable_component_id
What: /sys/bus/counter/devices/counterX/external_input_phase_clock_select_component_id
What: /sys/bus/counter/devices/counterX/countY/capture_component_id
What: /sys/bus/counter/devices/counterX/countY/ceiling_component_id
-What: /sys/bus/counter/devices/counterX/countY/floor_component_id
+What: /sys/bus/counter/devices/counterX/countY/compare_component_id
What: /sys/bus/counter/devices/counterX/countY/count_mode_component_id
What: /sys/bus/counter/devices/counterX/countY/direction_component_id
What: /sys/bus/counter/devices/counterX/countY/enable_component_id
What: /sys/bus/counter/devices/counterX/countY/error_noise_component_id
+What: /sys/bus/counter/devices/counterX/countY/floor_component_id
+What: /sys/bus/counter/devices/counterX/countY/num_overflows_component_id
What: /sys/bus/counter/devices/counterX/countY/prescaler_component_id
What: /sys/bus/counter/devices/counterX/countY/preset_component_id
What: /sys/bus/counter/devices/counterX/countY/preset_enable_component_id
What: /sys/bus/counter/devices/counterX/countY/signalZ_action_component_id
-What: /sys/bus/counter/devices/counterX/countY/num_overflows_component_id
What: /sys/bus/counter/devices/counterX/signalY/cable_fault_component_id
What: /sys/bus/counter/devices/counterX/signalY/cable_fault_enable_component_id
What: /sys/bus/counter/devices/counterX/signalY/filter_clock_prescaler_component_id
+What: /sys/bus/counter/devices/counterX/signalY/frequency_component_id
What: /sys/bus/counter/devices/counterX/signalY/index_polarity_component_id
What: /sys/bus/counter/devices/counterX/signalY/polarity_component_id
What: /sys/bus/counter/devices/counterX/signalY/synchronous_mode_component_id
-What: /sys/bus/counter/devices/counterX/signalY/frequency_component_id
KernelVersion: 5.16
Contact: linux-iio@vger.kernel.org
Description:
diff --git a/Documentation/ABI/testing/sysfs-bus-cxl b/Documentation/ABI/testing/sysfs-bus-cxl
index 48ac0d911801..c80a1b5a03db 100644
--- a/Documentation/ABI/testing/sysfs-bus-cxl
+++ b/Documentation/ABI/testing/sysfs-bus-cxl
@@ -1,5 +1,5 @@
What: /sys/bus/cxl/flush
-Date: Januarry, 2022
+Date: January, 2022
KernelVersion: v5.18
Contact: linux-cxl@vger.kernel.org
Description:
@@ -18,6 +18,24 @@ Description:
specification.
+What: /sys/bus/cxl/devices/memX/payload_max
+Date: December, 2020
+KernelVersion: v5.12
+Contact: linux-cxl@vger.kernel.org
+Description:
+ (RO) Maximum size (in bytes) of the mailbox command payload
+ registers. Linux caps this at 1MB if the device reports a
+ larger size.
+
+
+What: /sys/bus/cxl/devices/memX/label_storage_size
+Date: May, 2021
+KernelVersion: v5.13
+Contact: linux-cxl@vger.kernel.org
+Description:
+ (RO) Size (in bytes) of the Label Storage Area (LSA).
+
+
What: /sys/bus/cxl/devices/memX/ram/size
Date: December, 2020
KernelVersion: v5.12
@@ -28,6 +46,23 @@ Description:
Payload in the CXL-2.0 specification.
+What: /sys/bus/cxl/devices/memX/ram/qos_class
+Date: May, 2023
+KernelVersion: v6.8
+Contact: linux-cxl@vger.kernel.org
+Description:
+ (RO) For CXL host platforms that support "QoS Telemetry"
+ this attribute conveys a comma delimited list of platform
+ specific cookies that identifies a QoS performance class
+ for the volatile partition of the CXL mem device. These
+ class-ids can be compared against a similar "qos_class"
+ published for a root decoder. While it is not required
+ that the endpoints map their local memory-class to a
+ matching platform class, mismatches are not recommended
+ and there are platform specific performance related
+ side-effects that may result. First class-id is displayed.
+
+
What: /sys/bus/cxl/devices/memX/pmem/size
Date: December, 2020
KernelVersion: v5.12
@@ -38,6 +73,23 @@ Description:
Payload in the CXL-2.0 specification.
+What: /sys/bus/cxl/devices/memX/pmem/qos_class
+Date: May, 2023
+KernelVersion: v6.8
+Contact: linux-cxl@vger.kernel.org
+Description:
+ (RO) For CXL host platforms that support "QoS Telemetry"
+ this attribute conveys a comma delimited list of platform
+ specific cookies that identifies a QoS performance class
+ for the persistent partition of the CXL mem device. These
+ class-ids can be compared against a similar "qos_class"
+ published for a root decoder. While it is not required
+ that the endpoints map their local memory-class to a
+ matching platform class, mismatches are not recommended
+ and there are platform specific performance related
+ side-effects that may result. First class-id is displayed.
+
+
What: /sys/bus/cxl/devices/memX/serial
Date: January, 2022
KernelVersion: v5.18
@@ -58,6 +110,65 @@ Description:
affinity for this device.
+What: /sys/bus/cxl/devices/memX/security/state
+Date: June, 2023
+KernelVersion: v6.5
+Contact: linux-cxl@vger.kernel.org
+Description:
+ (RO) Reading this file will display the CXL security state for
+ that device. Such states can be: 'disabled', 'sanitize', when
+ a sanitization is currently underway; or those available only
+ for persistent memory: 'locked', 'unlocked' or 'frozen'. This
+ sysfs entry is select/poll capable from userspace to notify
+ upon completion of a sanitize operation.
+
+
+What: /sys/bus/cxl/devices/memX/security/sanitize
+Date: June, 2023
+KernelVersion: v6.5
+Contact: linux-cxl@vger.kernel.org
+Description:
+ (WO) Write a boolean 'true' string value to this attribute to
+ sanitize the device to securely re-purpose or decommission it.
+ This is done by ensuring that all user data and meta-data,
+ whether it resides in persistent capacity, volatile capacity,
+ or the LSA, is made permanently unavailable by whatever means
+ is appropriate for the media type. This functionality requires
+ the device to be disabled, that is, not actively decoding any
+ HPA ranges. This permits avoiding explicit global CPU cache
+ management, relying instead for it to be done when a region
+ transitions between software programmed and hardware committed
+ states. If this file is not present, then there is no hardware
+ support for the operation.
+
+
+What /sys/bus/cxl/devices/memX/security/erase
+Date: June, 2023
+KernelVersion: v6.5
+Contact: linux-cxl@vger.kernel.org
+Description:
+ (WO) Write a boolean 'true' string value to this attribute to
+ secure erase user data by changing the media encryption keys for
+ all user data areas of the device. This functionality requires
+ the device to be disabled, that is, not actively decoding any
+ HPA ranges. This permits avoiding explicit global CPU cache
+ management, relying instead for it to be done when a region
+ transitions between software programmed and hardware committed
+ states. If this file is not present, then there is no hardware
+ support for the operation.
+
+
+What: /sys/bus/cxl/devices/memX/firmware/
+Date: April, 2023
+KernelVersion: v6.5
+Contact: linux-cxl@vger.kernel.org
+Description:
+ (RW) Firmware uploader mechanism. The different files under
+ this directory can be used to upload and activate new
+ firmware for CXL devices. The interfaces under this are
+ documented in sysfs-class-firmware.
+
+
What: /sys/bus/cxl/devices/*/devtype
Date: June, 2021
KernelVersion: v5.14
@@ -119,6 +230,21 @@ Description:
hardware decoder target list.
+What: /sys/bus/cxl/devices/portX/decoders_committed
+Date: October, 2023
+KernelVersion: v6.7
+Contact: linux-cxl@vger.kernel.org
+Description:
+ (RO) A memory device is considered active when any of its
+ decoders are in the "committed" state (See CXL 3.0 8.2.4.19.7
+ CXL HDM Decoder n Control Register). Hotplug and destructive
+ operations like "sanitize" are blocked while device is actively
+ decoding a Host Physical Address range. Note that this number
+ may be elevated without any regionX objects active or even
+ enumerated, as this may be due to decoders established by
+ platform firmware or a previous kernel (kexec).
+
+
What: /sys/bus/cxl/devices/decoderX.Y
Date: June, 2021
KernelVersion: v5.14
@@ -213,14 +339,13 @@ KernelVersion: v6.0
Contact: linux-cxl@vger.kernel.org
Description:
(RW) When a CXL decoder is of devtype "cxl_decoder_endpoint" it
- translates from a host physical address range, to a device local
- address range. Device-local address ranges are further split
- into a 'ram' (volatile memory) range and 'pmem' (persistent
- memory) range. The 'mode' attribute emits one of 'ram', 'pmem',
- 'mixed', or 'none'. The 'mixed' indication is for error cases
- when a decoder straddles the volatile/persistent partition
- boundary, and 'none' indicates the decoder is not actively
- decoding, or no DPA allocation policy has been set.
+ translates from a host physical address range, to a device
+ local address range. Device-local address ranges are further
+ split into a 'ram' (volatile memory) range and 'pmem'
+ (persistent memory) range. The 'mode' attribute emits one of
+ 'ram', 'pmem', or 'none'. The 'none' indicates the decoder is
+ not actively decoding, or no DPA allocation policy has been
+ set.
'mode' can be written, when the decoder is in the 'disabled'
state, with either 'ram' or 'pmem' to set the boundaries for the
@@ -310,6 +435,21 @@ Description:
provided it is currently idle / not bound to a driver.
+What: /sys/bus/cxl/devices/decoderX.Y/qos_class
+Date: May, 2023
+KernelVersion: v6.5
+Contact: linux-cxl@vger.kernel.org
+Description:
+ (RO) For CXL host platforms that support "QoS Telemetry" this
+ root-decoder-only attribute conveys a platform specific cookie
+ that identifies a QoS performance class for the CXL Window.
+ This class-id can be compared against a similar "qos_class"
+ published for each memory-type that an endpoint supports. While
+ it is not required that endpoints map their local memory-class
+ to a matching platform class, mismatches are not recommended and
+ there are platform specific side-effects that may result.
+
+
What: /sys/bus/cxl/devices/regionZ/uuid
Date: May, 2022
KernelVersion: v6.0
@@ -356,8 +496,17 @@ Description:
changed, only freed by writing 0. The kernel makes no guarantees
that data is maintained over an address space freeing event, and
there is no guarantee that a free followed by an allocate
- results in the same address being allocated.
+ results in the same address being allocated. If extended linear
+ cache is present, the size indicates extended linear cache size
+ plus the CXL region size.
+What: /sys/bus/cxl/devices/regionZ/extended_linear_cache_size
+Date: October, 2025
+KernelVersion: v6.19
+Contact: linux-cxl@vger.kernel.org
+Description:
+ (RO) The size of extended linear cache, if there is an extended
+ linear cache. Otherwise the attribute will not be visible.
What: /sys/bus/cxl/devices/regionZ/mode
Date: January, 2023
@@ -429,3 +578,49 @@ Description:
attribute is only visible for devices supporting the
capability. The retrieved errors are logged as kernel
events when cxl_poison event tracing is enabled.
+
+
+What: /sys/bus/cxl/devices/regionZ/accessY/read_bandwidth
+ /sys/bus/cxl/devices/regionZ/accessY/write_bandwidth
+Date: Jan, 2024
+KernelVersion: v6.9
+Contact: linux-cxl@vger.kernel.org
+Description:
+ (RO) The aggregated read or write bandwidth of the region. The
+ number is the accumulated read or write bandwidth of all CXL memory
+ devices that contributes to the region in MB/s. It is
+ identical data that should appear in
+ /sys/devices/system/node/nodeX/accessY/initiators/read_bandwidth or
+ /sys/devices/system/node/nodeX/accessY/initiators/write_bandwidth.
+ See Documentation/ABI/stable/sysfs-devices-node. access0 provides
+ the number to the closest initiator and access1 provides the
+ number to the closest CPU.
+
+
+What: /sys/bus/cxl/devices/regionZ/accessY/read_latency
+ /sys/bus/cxl/devices/regionZ/accessY/write_latency
+Date: Jan, 2024
+KernelVersion: v6.9
+Contact: linux-cxl@vger.kernel.org
+Description:
+ (RO) The read or write latency of the region. The number is
+ the worst read or write latency of all CXL memory devices that
+ contributes to the region in nanoseconds. It is identical data
+ that should appear in
+ /sys/devices/system/node/nodeX/accessY/initiators/read_latency or
+ /sys/devices/system/node/nodeX/accessY/initiators/write_latency.
+ See Documentation/ABI/stable/sysfs-devices-node. access0 provides
+ the number to the closest initiator and access1 provides the
+ number to the closest CPU.
+
+
+What: /sys/bus/cxl/devices/nvdimm-bridge0/ndbusX/nmemY/cxl/dirty_shutdown
+Date: Feb, 2025
+KernelVersion: v6.15
+Contact: linux-cxl@vger.kernel.org
+Description:
+ (RO) The device dirty shutdown count value, which is the number
+ of times the device could have incurred in potential data loss.
+ The count is persistent across power loss and wraps back to 0
+ upon overflow. If this file is not present, the device does not
+ have the necessary support for dirty tracking.
diff --git a/Documentation/ABI/testing/sysfs-bus-dax b/Documentation/ABI/testing/sysfs-bus-dax
new file mode 100644
index 000000000000..b34266bfae49
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-dax
@@ -0,0 +1,153 @@
+What: /sys/bus/dax/devices/daxX.Y/align
+Date: October, 2020
+KernelVersion: v5.10
+Contact: nvdimm@lists.linux.dev
+Description:
+ (RW) Provides a way to specify an alignment for a dax device.
+ Values allowed are constrained by the physical address ranges
+ that back the dax device, and also by arch requirements.
+
+What: /sys/bus/dax/devices/daxX.Y/mapping
+Date: October, 2020
+KernelVersion: v5.10
+Contact: nvdimm@lists.linux.dev
+Description:
+ (WO) Provides a way to allocate a mapping range under a dax
+ device. Specified in the format <start>-<end>.
+
+What: /sys/bus/dax/devices/daxX.Y/mapping[0..N]/start
+What: /sys/bus/dax/devices/daxX.Y/mapping[0..N]/end
+What: /sys/bus/dax/devices/daxX.Y/mapping[0..N]/page_offset
+Date: October, 2020
+KernelVersion: v5.10
+Contact: nvdimm@lists.linux.dev
+Description:
+ (RO) A dax device may have multiple constituent discontiguous
+ address ranges. These are represented by the different
+ 'mappingX' subdirectories. The 'start' attribute indicates the
+ start physical address for the given range. The 'end' attribute
+ indicates the end physical address for the given range. The
+ 'page_offset' attribute indicates the offset of the current
+ range in the dax device.
+
+What: /sys/bus/dax/devices/daxX.Y/resource
+Date: June, 2019
+KernelVersion: v5.3
+Contact: nvdimm@lists.linux.dev
+Description:
+ (RO) The resource attribute indicates the starting physical
+ address of a dax device. In case of a device with multiple
+ constituent ranges, it indicates the starting address of the
+ first range.
+
+What: /sys/bus/dax/devices/daxX.Y/size
+Date: October, 2020
+KernelVersion: v5.10
+Contact: nvdimm@lists.linux.dev
+Description:
+ (RW) The size attribute indicates the total size of a dax
+ device. For creating subdivided dax devices, or for resizing
+ an existing device, the new size can be written to this as
+ part of the reconfiguration process.
+
+What: /sys/bus/dax/devices/daxX.Y/numa_node
+Date: November, 2019
+KernelVersion: v5.5
+Contact: nvdimm@lists.linux.dev
+Description:
+ (RO) If NUMA is enabled and the platform has affinitized the
+ backing device for this dax device, emit the CPU node
+ affinity for this device.
+
+What: /sys/bus/dax/devices/daxX.Y/target_node
+Date: February, 2019
+KernelVersion: v5.1
+Contact: nvdimm@lists.linux.dev
+Description:
+ (RO) The target-node attribute is the Linux numa-node that a
+ device-dax instance may create when it is online. Prior to
+ being online the device's 'numa_node' property reflects the
+ closest online cpu node which is the typical expectation of a
+ device 'numa_node'. Once it is online it becomes its own
+ distinct numa node.
+
+What: $(readlink -f /sys/bus/dax/devices/daxX.Y)/../dax_region/available_size
+Date: October, 2020
+KernelVersion: v5.10
+Contact: nvdimm@lists.linux.dev
+Description:
+ (RO) The available_size attribute tracks available dax region
+ capacity. This only applies to volatile hmem devices, not pmem
+ devices, since pmem devices are defined by nvdimm namespace
+ boundaries.
+
+What: $(readlink -f /sys/bus/dax/devices/daxX.Y)/../dax_region/size
+Date: July, 2017
+KernelVersion: v5.1
+Contact: nvdimm@lists.linux.dev
+Description:
+ (RO) The size attribute indicates the size of a given dax region
+ in bytes.
+
+What: $(readlink -f /sys/bus/dax/devices/daxX.Y)/../dax_region/align
+Date: October, 2020
+KernelVersion: v5.10
+Contact: nvdimm@lists.linux.dev
+Description:
+ (RO) The align attribute indicates alignment of the dax region.
+ Changes on align may not always be valid, when say certain
+ mappings were created with 2M and then we switch to 1G. This
+ validates all ranges against the new value being attempted, post
+ resizing.
+
+What: $(readlink -f /sys/bus/dax/devices/daxX.Y)/../dax_region/seed
+Date: October, 2020
+KernelVersion: v5.10
+Contact: nvdimm@lists.linux.dev
+Description:
+ (RO) The seed device is a concept for dynamic dax regions to be
+ able to split the region amongst multiple sub-instances. The
+ seed device, similar to libnvdimm seed devices, is a device
+ that starts with zero capacity allocated and unbound to a
+ driver.
+
+What: $(readlink -f /sys/bus/dax/devices/daxX.Y)/../dax_region/create
+Date: October, 2020
+KernelVersion: v5.10
+Contact: nvdimm@lists.linux.dev
+Description:
+ (RW) The create interface to the dax region provides a way to
+ create a new unconfigured dax device under the given region, which
+ can then be configured (with a size etc.) and then probed.
+
+What: $(readlink -f /sys/bus/dax/devices/daxX.Y)/../dax_region/delete
+Date: October, 2020
+KernelVersion: v5.10
+Contact: nvdimm@lists.linux.dev
+Description:
+ (WO) The delete interface for a dax region provides for deletion
+ of any 0-sized and idle dax devices.
+
+What: $(readlink -f /sys/bus/dax/devices/daxX.Y)/../dax_region/id
+Date: July, 2017
+KernelVersion: v5.1
+Contact: nvdimm@lists.linux.dev
+Description:
+ (RO) The id attribute indicates the region id of a dax region.
+
+What: /sys/bus/dax/devices/daxX.Y/memmap_on_memory
+Date: January, 2024
+KernelVersion: v6.8
+Contact: nvdimm@lists.linux.dev
+Description:
+ (RW) Control the memmap_on_memory setting if the dax device
+ were to be hotplugged as system memory. This determines whether
+ the 'altmap' for the hotplugged memory will be placed on the
+ device being hotplugged (memmap_on_memory=1) or if it will be
+ placed on regular memory (memmap_on_memory=0). This attribute
+ must be set before the device is handed over to the 'kmem'
+ driver (i.e. hotplugged into system-ram). Additionally, this
+ depends on CONFIG_MHP_MEMMAP_ON_MEMORY, and a globally enabled
+ memmap_on_memory parameter for memory_hotplug. This is
+ typically set on the kernel command line -
+ memory_hotplug.memmap_on_memory set to 'true' or 'force'."
diff --git a/Documentation/ABI/testing/sysfs-bus-event_source-devices b/Documentation/ABI/testing/sysfs-bus-event_source-devices
new file mode 100644
index 000000000000..79b268319df1
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-event_source-devices
@@ -0,0 +1,24 @@
+What: /sys/bus/event_source/devices/<pmu>
+Date: 2014/02/24
+Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org>
+Description: Performance Monitoring Unit (<pmu>)
+
+ Each <pmu> directory, for a PMU device, is a name
+ optionally followed by an underscore and then either a
+ decimal or hexadecimal number. For example, cpu is a
+ PMU name without a suffix as is intel_bts,
+ uncore_imc_0 is a PMU name with a 0 numeric suffix,
+ ddr_pmu_87e1b0000000 is a PMU name with a hex
+ suffix. The hex suffix must be more than two
+ characters long to avoid ambiguity with PMUs like the
+ S390 cpum_cf.
+
+ Tools can treat PMUs with the same name that differ by
+ suffix as instances of the same PMU for the sake of,
+ for example, opening an event. For example, the PMUs
+ uncore_imc_free_running_0 and
+ uncore_imc_free_running_1 have an event data_read;
+ opening the data_read event on a PMU specified as
+ uncore_imc_free_running should be treated as opening
+ the data_read event on PMU uncore_imc_free_running_0
+ and PMU uncore_imc_free_running_1.
diff --git a/Documentation/ABI/testing/sysfs-bus-event_source-devices-caps b/Documentation/ABI/testing/sysfs-bus-event_source-devices-caps
index 8757dcf41c08..a5f506f7d481 100644
--- a/Documentation/ABI/testing/sysfs-bus-event_source-devices-caps
+++ b/Documentation/ABI/testing/sysfs-bus-event_source-devices-caps
@@ -16,3 +16,9 @@ Description:
Example output in powerpc:
grep . /sys/bus/event_source/devices/cpu/caps/*
/sys/bus/event_source/devices/cpu/caps/pmu_name:POWER9
+
+ The "branch_counter_nr" in the supported platform exposes the
+ maximum number of counters which can be shown in the u64 counters
+ of PERF_SAMPLE_BRANCH_COUNTERS, while the "branch_counter_width"
+ exposes the width of each counter. Both of them can be used by
+ the perf tool to parse the logged counters in each branch.
diff --git a/Documentation/ABI/testing/sysfs-bus-event_source-devices-events b/Documentation/ABI/testing/sysfs-bus-event_source-devices-events
index 505f080d20a1..0fe1b9487202 100644
--- a/Documentation/ABI/testing/sysfs-bus-event_source-devices-events
+++ b/Documentation/ABI/testing/sysfs-bus-event_source-devices-events
@@ -37,6 +37,14 @@ Description: Per-pmu performance monitoring events specific to the running syste
performance monitoring event supported by the <pmu>. The name
of the file is the name of the event.
+ As performance monitoring event names are case insensitive
+ in the perf tool, the perf tool only looks for all lower
+ case or all upper case event names in sysfs to avoid
+ scanning the directory. It is therefore required the
+ name of the event here is either completely lower or upper
+ case, with no mixed-case characters. Numbers, '.', '_', and
+ '-' are also allowed.
+
File contents:
<term>[=<value>][,<term>[=<value>]]...
@@ -47,7 +55,7 @@ Description: Per-pmu performance monitoring events specific to the running syste
If a <term> is specified alone (without an assigned value), it
is implied that 0x1 is assigned to that <term>.
- Examples (each of these lines would be in a seperate file):
+ Examples (each of these lines would be in a separate file):
event=0x2abc
event=0x423,inv,cmask=0x3
@@ -83,7 +91,7 @@ Description: Perf event scaling factors
A string representing a floating point value expressed in
scientific notation to be multiplied by the event count
- recieved from the kernel to match the unit specified in the
+ received from the kernel to match the unit specified in the
<event>.unit file.
Example:
diff --git a/Documentation/ABI/testing/sysfs-bus-event_source-devices-hisi_ptt b/Documentation/ABI/testing/sysfs-bus-event_source-devices-hisi_ptt
new file mode 100644
index 000000000000..1119766564d7
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-event_source-devices-hisi_ptt
@@ -0,0 +1,113 @@
+What: /sys/bus/event_source/devices/hisi_ptt<sicl_id>_<core_id>/tune
+Date: October 2022
+KernelVersion: 6.1
+Contact: Yicong Yang <yangyicong@hisilicon.com>
+Description: This directory contains files for tuning the PCIe link
+ parameters(events). Each file is named after the event
+ of the PCIe link.
+
+ See Documentation/trace/hisi-ptt.rst for more information.
+
+What: /sys/bus/event_source/devices/hisi_ptt<sicl_id>_<core_id>/tune/qos_tx_cpl
+Date: October 2022
+KernelVersion: 6.1
+Contact: Yicong Yang <yangyicong@hisilicon.com>
+Description: (RW) Controls the weight of Tx completion TLPs, which influence
+ the proportion of outbound completion TLPs on the PCIe link.
+ The available tune data is [0, 1, 2]. Writing a negative value
+ will return an error, and out of range values will be converted
+ to 2. The value indicates a probable level of the event.
+
+What: /sys/bus/event_source/devices/hisi_ptt<sicl_id>_<core_id>/tune/qos_tx_np
+Date: October 2022
+KernelVersion: 6.1
+Contact: Yicong Yang <yangyicong@hisilicon.com>
+Description: (RW) Controls the weight of Tx non-posted TLPs, which influence
+ the proportion of outbound non-posted TLPs on the PCIe link.
+ The available tune data is [0, 1, 2]. Writing a negative value
+ will return an error, and out of range values will be converted
+ to 2. The value indicates a probable level of the event.
+
+What: /sys/bus/event_source/devices/hisi_ptt<sicl_id>_<core_id>/tune/qos_tx_p
+Date: October 2022
+KernelVersion: 6.1
+Contact: Yicong Yang <yangyicong@hisilicon.com>
+Description: (RW) Controls the weight of Tx posted TLPs, which influence the
+ proportion of outbound posted TLPs on the PCIe link.
+ The available tune data is [0, 1, 2]. Writing a negative value
+ will return an error, and out of range values will be converted
+ to 2. The value indicates a probable level of the event.
+
+What: /sys/bus/event_source/devices/hisi_ptt<sicl_id>_<core_id>/tune/rx_alloc_buf_level
+Date: October 2022
+KernelVersion: 6.1
+Contact: Yicong Yang <yangyicong@hisilicon.com>
+Description: (RW) Control the allocated buffer watermark for inbound packets.
+ The packets will be stored in the buffer first and then transmitted
+ either when the watermark reached or when timed out.
+ The available tune data is [0, 1, 2]. Writing a negative value
+ will return an error, and out of range values will be converted
+ to 2. The value indicates a probable level of the event.
+
+What: /sys/bus/event_source/devices/hisi_ptt<sicl_id>_<core_id>/tune/tx_alloc_buf_level
+Date: October 2022
+KernelVersion: 6.1
+Contact: Yicong Yang <yangyicong@hisilicon.com>
+Description: (RW) Control the allocated buffer watermark of outbound packets.
+ The packets will be stored in the buffer first and then transmitted
+ either when the watermark reached or when timed out.
+ The available tune data is [0, 1, 2]. Writing a negative value
+ will return an error, and out of range values will be converted
+ to 2. The value indicates a probable level of the event.
+
+What: /sys/devices/hisi_ptt<sicl_id>_<core_id>/root_port_filters
+Date: May 2023
+KernelVersion: 6.5
+Contact: Yicong Yang <yangyicong@hisilicon.com>
+Description: This directory contains the files providing the PCIe Root Port filters
+ information used for PTT trace. Each file is named after the supported
+ Root Port device name <domain>:<bus>:<device>.<function>.
+
+ See the description of the "filter" in Documentation/trace/hisi-ptt.rst
+ for more information.
+
+What: /sys/devices/hisi_ptt<sicl_id>_<core_id>/root_port_filters/multiselect
+Date: May 2023
+KernelVersion: 6.5
+Contact: Yicong Yang <yangyicong@hisilicon.com>
+Description: (Read) Indicates if this kind of filter can be selected at the same
+ time as others filters, or must be used on it's own. 1 indicates
+ the former case and 0 indicates the latter.
+
+What: /sys/devices/hisi_ptt<sicl_id>_<core_id>/root_port_filters/<bdf>
+Date: May 2023
+KernelVersion: 6.5
+Contact: Yicong Yang <yangyicong@hisilicon.com>
+Description: (Read) Indicates the filter value of this Root Port filter, which
+ can be used to control the TLP headers to trace by the PTT trace.
+
+What: /sys/devices/hisi_ptt<sicl_id>_<core_id>/requester_filters
+Date: May 2023
+KernelVersion: 6.5
+Contact: Yicong Yang <yangyicong@hisilicon.com>
+Description: This directory contains the files providing the PCIe Requester filters
+ information used for PTT trace. Each file is named after the supported
+ Endpoint device name <domain>:<bus>:<device>.<function>.
+
+ See the description of the "filter" in Documentation/trace/hisi-ptt.rst
+ for more information.
+
+What: /sys/devices/hisi_ptt<sicl_id>_<core_id>/requester_filters/multiselect
+Date: May 2023
+KernelVersion: 6.5
+Contact: Yicong Yang <yangyicong@hisilicon.com>
+Description: (Read) Indicates if this kind of filter can be selected at the same
+ time as others filters, or must be used on it's own. 1 indicates
+ the former case and 0 indicates the latter.
+
+What: /sys/devices/hisi_ptt<sicl_id>_<core_id>/requester_filters/<bdf>
+Date: May 2023
+KernelVersion: 6.5
+Contact: Yicong Yang <yangyicong@hisilicon.com>
+Description: (Read) Indicates the filter value of this Requester filter, which
+ can be used to control the TLP headers to trace by the PTT trace.
diff --git a/Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_gpci b/Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_gpci
index 12e2bf92783f..40f7cd240591 100644
--- a/Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_gpci
+++ b/Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_gpci
@@ -80,3 +80,163 @@ Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org>
Description: read only
This sysfs file exposes the cpumask which is designated to make
HCALLs to retrieve hv-gpci pmu event counter data.
+
+What: /sys/devices/hv_gpci/interface/processor_bus_topology
+Date: July 2023
+Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org>
+Description: admin read only
+ This sysfs file exposes the system topology information by making HCALL
+ H_GET_PERF_COUNTER_INFO. The HCALL is made with counter request value
+ PROCESSOR_BUS_TOPOLOGY(0xD0).
+
+ * This sysfs file will be created only for power10 and above platforms.
+
+ * User needs root privileges to read data from this sysfs file.
+
+ * This sysfs file will be created, only when the HCALL returns "H_SUCCESS",
+ "H_AUTHORITY" or "H_PARAMETER" as the return type.
+
+ HCALL with return error type "H_AUTHORITY" can be resolved during
+ runtime by setting "Enable Performance Information Collection" option.
+
+ * The end user reading this sysfs file must decode the content as per
+ underlying platform/firmware.
+
+ Possible error codes while reading this sysfs file:
+
+ * "-EPERM" : Partition is not permitted to retrieve performance information,
+ required to set "Enable Performance Information Collection" option.
+
+ * "-EIO" : Can't retrieve system information because of invalid buffer length/invalid address
+ or because of some hardware error. Refer to getPerfCountInfo documentation for
+ more information.
+
+ * "-EFBIG" : System information exceeds PAGE_SIZE.
+
+What: /sys/devices/hv_gpci/interface/processor_config
+Date: July 2023
+Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org>
+Description: admin read only
+ This sysfs file exposes the system topology information by making HCALL
+ H_GET_PERF_COUNTER_INFO. The HCALL is made with counter request value
+ PROCESSOR_CONFIG(0x90).
+
+ * This sysfs file will be created only for power10 and above platforms.
+
+ * User needs root privileges to read data from this sysfs file.
+
+ * This sysfs file will be created, only when the HCALL returns "H_SUCCESS",
+ "H_AUTHORITY" or "H_PARAMETER" as the return type.
+
+ HCALL with return error type "H_AUTHORITY" can be resolved during
+ runtime by setting "Enable Performance Information Collection" option.
+
+ * The end user reading this sysfs file must decode the content as per
+ underlying platform/firmware.
+
+ Possible error codes while reading this sysfs file:
+
+ * "-EPERM" : Partition is not permitted to retrieve performance information,
+ required to set "Enable Performance Information Collection" option.
+
+ * "-EIO" : Can't retrieve system information because of invalid buffer length/invalid address
+ or because of some hardware error. Refer to getPerfCountInfo documentation for
+ more information.
+
+ * "-EFBIG" : System information exceeds PAGE_SIZE.
+
+What: /sys/devices/hv_gpci/interface/affinity_domain_via_virtual_processor
+Date: July 2023
+Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org>
+Description: admin read only
+ This sysfs file exposes the system topology information by making HCALL
+ H_GET_PERF_COUNTER_INFO. The HCALL is made with counter request value
+ AFFINITY_DOMAIN_INFORMATION_BY_VIRTUAL_PROCESSOR(0xA0).
+
+ * This sysfs file will be created only for power10 and above platforms.
+
+ * User needs root privileges to read data from this sysfs file.
+
+ * This sysfs file will be created, only when the HCALL returns "H_SUCCESS",
+ "H_AUTHORITY" or "H_PARAMETER" as the return type.
+
+ HCALL with return error type "H_AUTHORITY" can be resolved during
+ runtime by setting "Enable Performance Information Collection" option.
+
+ * The end user reading this sysfs file must decode the content as per
+ underlying platform/firmware.
+
+ Possible error codes while reading this sysfs file:
+
+ * "-EPERM" : Partition is not permitted to retrieve performance information,
+ required to set "Enable Performance Information Collection" option.
+
+ * "-EIO" : Can't retrieve system information because of invalid buffer length/invalid address
+ or because of some hardware error. Refer to getPerfCountInfo documentation for
+ more information.
+
+ * "-EFBIG" : System information exceeds PAGE_SIZE.
+
+What: /sys/devices/hv_gpci/interface/affinity_domain_via_domain
+Date: July 2023
+Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org>
+Description: admin read only
+ This sysfs file exposes the system topology information by making HCALL
+ H_GET_PERF_COUNTER_INFO. The HCALL is made with counter request value
+ AFFINITY_DOMAIN_INFORMATION_BY_DOMAIN(0xB0).
+
+ * This sysfs file will be created only for power10 and above platforms.
+
+ * User needs root privileges to read data from this sysfs file.
+
+ * This sysfs file will be created, only when the HCALL returns "H_SUCCESS",
+ "H_AUTHORITY" or "H_PARAMETER" as the return type.
+
+ HCALL with return error type "H_AUTHORITY" can be resolved during
+ runtime by setting "Enable Performance Information Collection" option.
+
+ * The end user reading this sysfs file must decode the content as per
+ underlying platform/firmware.
+
+ Possible error codes while reading this sysfs file:
+
+ * "-EPERM" : Partition is not permitted to retrieve performance information,
+ required to set "Enable Performance Information Collection" option.
+
+ * "-EIO" : Can't retrieve system information because of invalid buffer length/invalid address
+ or because of some hardware error. Refer to getPerfCountInfo documentation for
+ more information.
+
+ * "-EFBIG" : System information exceeds PAGE_SIZE.
+
+What: /sys/devices/hv_gpci/interface/affinity_domain_via_partition
+Date: July 2023
+Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org>
+Description: admin read only
+ This sysfs file exposes the system topology information by making HCALL
+ H_GET_PERF_COUNTER_INFO. The HCALL is made with counter request value
+ AFFINITY_DOMAIN_INFORMATION_BY_PARTITION(0xB1).
+
+ * This sysfs file will be created only for power10 and above platforms.
+
+ * User needs root privileges to read data from this sysfs file.
+
+ * This sysfs file will be created, only when the HCALL returns "H_SUCCESS",
+ "H_AUTHORITY" or "H_PARAMETER" as the return type.
+
+ HCALL with return error type "H_AUTHORITY" can be resolved during
+ runtime by setting "Enable Performance Information Collection" option.
+
+ * The end user reading this sysfs file must decode the content as per
+ underlying platform/firmware.
+
+ Possible error codes while reading this sysfs file:
+
+ * "-EPERM" : Partition is not permitted to retrieve performance information,
+ required to set "Enable Performance Information Collection" option.
+
+ * "-EIO" : Can't retrieve system information because of invalid buffer length/invalid address
+ or because of some hardware error. Refer to getPerfCountInfo documentation for
+ more information.
+
+ * "-EFBIG" : System information exceeds PAGE_SIZE.
diff --git a/Documentation/ABI/testing/sysfs-bus-event_source-devices-vpa-dtl b/Documentation/ABI/testing/sysfs-bus-event_source-devices-vpa-dtl
new file mode 100644
index 000000000000..7b7c789a5cf5
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-event_source-devices-vpa-dtl
@@ -0,0 +1,25 @@
+What: /sys/bus/event_source/devices/vpa_dtl/format
+Date: February 2025
+Contact: Linux on PowerPC Developer List <linuxppc-dev at lists.ozlabs.org>
+Description: Read-only. Attribute group to describe the magic bits
+ that go into perf_event_attr.config for a particular pmu.
+ (See ABI/testing/sysfs-bus-event_source-devices-format).
+
+ Each attribute under this group defines a bit range of the
+ perf_event_attr.config. Supported attribute are listed
+ below::
+
+ event = "config:0-7" - event ID
+
+ For example::
+
+ dtl_cede = "event=0x1"
+
+What: /sys/bus/event_source/devices/vpa_dtl/events
+Date: February 2025
+Contact: Linux on PowerPC Developer List <linuxppc-dev at lists.ozlabs.org>
+Description: (RO) Attribute group to describe performance monitoring events
+ for the Virtual Processor Dispatch Trace Log. Each attribute in
+ this group describes a single performance monitoring event
+ supported by vpa_dtl pmu. The name of the file is the name of
+ the event (See ABI/testing/sysfs-bus-event_source-devices-events).
diff --git a/Documentation/ABI/testing/sysfs-bus-event_source-devices-vpa-pmu b/Documentation/ABI/testing/sysfs-bus-event_source-devices-vpa-pmu
new file mode 100644
index 000000000000..a116aee9709a
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-event_source-devices-vpa-pmu
@@ -0,0 +1,25 @@
+What: /sys/bus/event_source/devices/vpa_pmu/format
+Date: November 2024
+Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org>
+Description: Read-only. Attribute group to describe the magic bits
+ that go into perf_event_attr.config for a particular pmu.
+ (See ABI/testing/sysfs-bus-event_source-devices-format).
+
+ Each attribute under this group defines a bit range of the
+ perf_event_attr.config. Supported attribute are listed
+ below::
+
+ event = "config:0-31" - event ID
+
+ For example::
+
+ l1_to_l2_lat = "event=0x1"
+
+What: /sys/bus/event_source/devices/vpa_pmu/events
+Date: November 2024
+Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org>
+Description: Read-only. Attribute group to describe performance monitoring
+ events for the Virtual Processor Area events. Each attribute
+ in this group describes a single performance monitoring event
+ supported by vpa_pmu. The name of the file is the name of
+ the event (See ABI/testing/sysfs-bus-event_source-devices-events).
diff --git a/Documentation/ABI/testing/sysfs-bus-fsi-devices-sbefifo b/Documentation/ABI/testing/sysfs-bus-fsi-devices-sbefifo
index 531fe9d6b40a..c7393b4dd2d8 100644
--- a/Documentation/ABI/testing/sysfs-bus-fsi-devices-sbefifo
+++ b/Documentation/ABI/testing/sysfs-bus-fsi-devices-sbefifo
@@ -5,6 +5,6 @@ Description:
Indicates whether or not this SBE device has experienced a
timeout; i.e. the SBE did not respond within the time allotted
by the driver. A value of 1 indicates that a timeout has
- ocurred and no transfers have completed since the timeout. A
- value of 0 indicates that no timeout has ocurred, or if one
- has, more recent transfers have completed successful.
+ occurred and no transfers have completed since the timeout. A
+ value of 0 indicates that no timeout has occurred, or if one
+ has, more recent transfers have completed successfully.
diff --git a/Documentation/ABI/testing/sysfs-bus-i2c-devices-fsa9480 b/Documentation/ABI/testing/sysfs-bus-i2c-devices-fsa9480
index 42dfc9399d2d..288bc2fa9547 100644
--- a/Documentation/ABI/testing/sysfs-bus-i2c-devices-fsa9480
+++ b/Documentation/ABI/testing/sysfs-bus-i2c-devices-fsa9480
@@ -8,7 +8,7 @@ Description:
NONE no device
USB USB device is attached
UART UART is attached
- CHARGER Charger is attaced
+ CHARGER Charger is attached
JIG JIG is attached
======= ======================
diff --git a/Documentation/ABI/testing/sysfs-bus-i2c-devices-m24lr b/Documentation/ABI/testing/sysfs-bus-i2c-devices-m24lr
new file mode 100644
index 000000000000..7c51ce8d38ba
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-i2c-devices-m24lr
@@ -0,0 +1,100 @@
+What: /sys/bus/i2c/devices/<busnum>-<primary-addr>/unlock
+Date: 2025-07-04
+KernelVersion: 6.17
+Contact: Abd-Alrhman Masalkhi <abd.masalkhi@gmail.com>
+Description:
+ Write-only attribute used to present a password and unlock
+ access to protected areas of the M24LR chip, including
+ configuration registers such as the Sector Security Status
+ (SSS) bytes. A valid password must be written to enable write
+ access to these regions via the I2C interface.
+
+ Format:
+ - Hexadecimal string representing a 32-bit (4-byte) password
+ - Accepts 1 to 8 hex digits (e.g., "c", "1F", "a1b2c3d4")
+ - No "0x" prefix, whitespace, or trailing newline
+ - Case-insensitive
+
+ Behavior:
+ - If the password matches the internal stored value,
+ access to protected memory/configuration is granted
+ - If the password does not match the internally stored value,
+ it will fail silently
+
+What: /sys/bus/i2c/devices/<busnum>-<primary-addr>/new_pass
+Date: 2025-07-04
+KernelVersion: 6.17
+Contact: Abd-Alrhman Masalkhi <abd.masalkhi@gmail.com>
+Description:
+ Write-only attribute used to update the password required to
+ unlock the M24LR chip.
+
+ Format:
+ - Hexadecimal string representing a new 32-bit password
+ - Accepts 1 to 8 hex digits (e.g., "1A", "ffff", "c0ffee00")
+ - No "0x" prefix, whitespace, or trailing newline
+ - Case-insensitive
+
+ Behavior:
+ - Overwrites the current password stored in the I2C password
+ register
+ - Requires the device to be unlocked before changing the
+ password
+ - If the device is locked, the write silently fails
+
+What: /sys/bus/i2c/devices/<busnum>-<primary-addr>/uid
+Date: 2025-07-04
+KernelVersion: 6.17
+Contact: Abd-Alrhman Masalkhi <abd.masalkhi@gmail.com>
+Description:
+ Read-only attribute that exposes the 8-byte unique identifier
+ programmed into the M24LR chip at the factory.
+
+ Format:
+ - Lowercase hexadecimal string representing a 64-bit value
+ - 1 to 16 hex digits (e.g., "e00204f12345678")
+ - No "0x" prefix
+ - Includes a trailing newline
+
+What: /sys/bus/i2c/devices/<busnum>-<primary-addr>/total_sectors
+Date: 2025-07-04
+KernelVersion: 6.17
+Contact: Abd-Alrhman Masalkhi <abd.masalkhi@gmail.com>
+Description:
+ Read-only attribute that exposes the total number of EEPROM
+ sectors available in the M24LR chip.
+
+ Format:
+ - 1 to 2 hex digits (e.g. "F")
+ - No "0x" prefix
+ - Includes a trailing newline
+
+ Notes:
+ - Value is encoded by the chip and corresponds to the EEPROM
+ size (e.g., 3 = 4 kbit for M24LR04E-R)
+
+What: /sys/bus/i2c/devices/<busnum>-<primary-addr>/sss
+Date: 2025-07-04
+KernelVersion: 6.17
+Contact: Abd-Alrhman Masalkhi <abd.masalkhi@gmail.com>
+Description:
+ Read/write binary attribute representing the Sector Security
+ Status (SSS) bytes for all EEPROM sectors in STMicroelectronics
+ M24LR chips.
+
+ Each EEPROM sector has one SSS byte, which controls I2C and
+ RF access through protection bits and optional password
+ authentication.
+
+ Format:
+ - The file contains one byte per EEPROM sector
+ - Byte at offset N corresponds to sector N
+ - Binary access only; use tools like dd, Python, or C that
+ support byte-level I/O and offset control.
+
+ Notes:
+ - The number of valid bytes in this file is equal to the
+ value exposed by 'total_sectors' file
+ - Write access requires prior password authentication in
+ I2C mode
+ - Refer to the M24LR datasheet for full SSS bit layout
diff --git a/Documentation/ABI/testing/sysfs-bus-i2c-devices-turris-omnia-mcu b/Documentation/ABI/testing/sysfs-bus-i2c-devices-turris-omnia-mcu
new file mode 100644
index 000000000000..35a8f6dae5bf
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-i2c-devices-turris-omnia-mcu
@@ -0,0 +1,113 @@
+What: /sys/bus/i2c/devices/<mcu_device>/board_revision
+Date: September 2024
+KernelVersion: 6.11
+Contact: Marek Behún <kabel@kernel.org>
+Description: (RO) Contains board revision number.
+
+ Only available if board information is burned in the MCU (older
+ revisions have board information burned in the ATSHA204-A chip).
+
+ Format: %u.
+
+What: /sys/bus/i2c/devices/<mcu_device>/first_mac_address
+Date: September 2024
+KernelVersion: 6.11
+Contact: Marek Behún <kabel@kernel.org>
+Description: (RO) Contains device first MAC address. Each Turris Omnia is
+ allocated 3 MAC addresses. The two additional addresses are
+ computed from the first one by incrementing it.
+
+ Only available if board information is burned in the MCU (older
+ revisions have board information burned in the ATSHA204-A chip).
+
+ Format: %pM.
+
+What: /sys/bus/i2c/devices/<mcu_device>/front_button_mode
+Date: September 2024
+KernelVersion: 6.11
+Contact: Marek Behún <kabel@kernel.org>
+Description: (RW) The front button on the Turris Omnia router can be
+ configured either to change the intensity of all the LEDs on the
+ front panel, or to send the press event to the CPU as an
+ interrupt.
+
+ This file switches between these two modes:
+ - ``mcu`` makes the button press event be handled by the MCU to
+ change the LEDs panel intensity.
+ - ``cpu`` makes the button press event be handled by the CPU.
+
+ Format: %s.
+
+What: /sys/bus/i2c/devices/<mcu_device>/front_button_poweron
+Date: September 2024
+KernelVersion: 6.11
+Contact: Marek Behún <kabel@kernel.org>
+Description: (RW) Newer versions of the microcontroller firmware of the
+ Turris Omnia router support powering off the router into true
+ low power mode. The router can be powered on by pressing the
+ front button.
+
+ This file configures whether front button power on is enabled.
+
+ This file is present only if the power off feature is supported
+ by the firmware.
+
+ Format: %i.
+
+What: /sys/bus/i2c/devices/<mcu_device>/fw_features
+Date: September 2024
+KernelVersion: 6.11
+Contact: Marek Behún <kabel@kernel.org>
+Description: (RO) Newer versions of the microcontroller firmware report the
+ features they support. These can be read from this file. If the
+ MCU firmware is too old, this file reads 0x0.
+
+ Format: 0x%x.
+
+What: /sys/bus/i2c/devices/<mcu_device>/fw_version_hash_application
+Date: September 2024
+KernelVersion: 6.11
+Contact: Marek Behún <kabel@kernel.org>
+Description: (RO) Contains the version hash (commit hash) of the application
+ part of the microcontroller firmware.
+
+ Format: %s.
+
+What: /sys/bus/i2c/devices/<mcu_device>/fw_version_hash_bootloader
+Date: September 2024
+KernelVersion: 6.11
+Contact: Marek Behún <kabel@kernel.org>
+Description: (RO) Contains the version hash (commit hash) of the bootloader
+ part of the microcontroller firmware.
+
+ Format: %s.
+
+What: /sys/bus/i2c/devices/<mcu_device>/mcu_type
+Date: September 2024
+KernelVersion: 6.11
+Contact: Marek Behún <kabel@kernel.org>
+Description: (RO) Contains the microcontroller type (STM32, GD32, MKL).
+
+ Format: %s.
+
+What: /sys/bus/i2c/devices/<mcu_device>/reset_selector
+Date: September 2024
+KernelVersion: 6.11
+Contact: Marek Behún <kabel@kernel.org>
+Description: (RO) Contains the selected factory reset level, determined by
+ how long the rear reset button was held by the user during board
+ reset.
+
+ Format: %i.
+
+What: /sys/bus/i2c/devices/<mcu_device>/serial_number
+Date: September 2024
+KernelVersion: 6.11
+Contact: Marek Behún <kabel@kernel.org>
+Description: (RO) Contains the 64-bit board serial number in hexadecimal
+ format.
+
+ Only available if board information is burned in the MCU (older
+ revisions have board information burned in the ATSHA204-A chip).
+
+ Format: %016X.
diff --git a/Documentation/ABI/testing/sysfs-bus-i3c b/Documentation/ABI/testing/sysfs-bus-i3c
index 1f4a2662335b..c812ab180ff4 100644
--- a/Documentation/ABI/testing/sysfs-bus-i3c
+++ b/Documentation/ABI/testing/sysfs-bus-i3c
@@ -67,7 +67,7 @@ What: /sys/bus/i3c/devices/i3c-<bus-id>/pid
KernelVersion: 5.0
Contact: linux-i3c@vger.kernel.org
Description:
- PID stands for Provisional ID and is used to uniquely identify
+ PID stands for Provisioned ID and is used to uniquely identify
a device on a bus. This PID contains information about the
vendor, the part and an instance ID so that several devices of
the same type can be connected on the same bus.
@@ -88,6 +88,21 @@ Description:
This entry describes the HDRCAP of the master controller
driving the bus.
+What: /sys/bus/i3c/devices/i3c-<bus-id>/hotjoin
+KernelVersion: 6.8
+Contact: linux-i3c@vger.kernel.org
+Description:
+ I3C’s Hot-Join mechanism allows an I3C Device to inform the
+ Active Controller that a newly-joined Target is present on the
+ I3C Bus and is ready to receive a Dynamic Address, in order to
+ become fully functional on the Bus. Hot-Join is used when the
+ Target is mounted on the same I3C bus and remains depowered
+ until needed or until the Target is physically inserted into the
+ I3C bus
+
+ This entry allows to enable or disable Hot-join of the Current
+ Controller driving the bus.
+
What: /sys/bus/i3c/devices/i3c-<bus-id>/<bus-id>-<device-pid>
KernelVersion: 5.0
Contact: linux-i3c@vger.kernel.org
@@ -123,7 +138,7 @@ What: /sys/bus/i3c/devices/i3c-<bus-id>/<bus-id>-<device-pid>/pid
KernelVersion: 5.0
Contact: linux-i3c@vger.kernel.org
Description:
- PID stands for Provisional ID and is used to uniquely identify
+ PID stands for Provisioned ID and is used to uniquely identify
a device on a bus. This PID contains information about the
vendor, the part and an instance ID so that several devices of
the same type can be connected on the same bus.
diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio
index 7140e8e7313f..5f87dcee78f7 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio
+++ b/Documentation/ABI/testing/sysfs-bus-iio
@@ -94,6 +94,7 @@ Description:
What: /sys/bus/iio/devices/iio:deviceX/sampling_frequency
What: /sys/bus/iio/devices/iio:deviceX/in_intensity_sampling_frequency
What: /sys/bus/iio/devices/iio:deviceX/buffer/sampling_frequency
+What: /sys/bus/iio/devices/iio:deviceX/events/sampling_frequency
What: /sys/bus/iio/devices/triggerX/sampling_frequency
KernelVersion: 2.6.35
Contact: linux-iio@vger.kernel.org
@@ -140,8 +141,6 @@ Description:
What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_raw
What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_raw
-What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_i_raw
-What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_q_raw
KernelVersion: 2.6.35
Contact: linux-iio@vger.kernel.org
Description:
@@ -168,19 +167,18 @@ Description:
is required is a consistent labeling. Units after application
of scale and offset are millivolts.
-What: /sys/bus/iio/devices/iio:deviceX/in_currentY_raw
-What: /sys/bus/iio/devices/iio:deviceX/in_currentY_supply_raw
-KernelVersion: 3.17
+What: /sys/bus/iio/devices/iio:deviceX/in_altvoltageY_rms_raw
+KernelVersion: 6.18
Contact: linux-iio@vger.kernel.org
Description:
- Raw (unscaled no bias removal etc.) current measurement from
- channel Y. In special cases where the channel does not
- correspond to externally available input one of the named
- versions may be used. The number must always be specified and
- unique to allow association with event codes. Units after
- application of scale and offset are milliamps.
+ Raw (unscaled) Root Mean Square (RMS) voltage measurement from
+ channel Y. Units after application of scale and offset are
+ millivolts.
What: /sys/bus/iio/devices/iio:deviceX/in_powerY_raw
+What: /sys/bus/iio/devices/iio:deviceX/in_powerY_active_raw
+What: /sys/bus/iio/devices/iio:deviceX/in_powerY_reactive_raw
+What: /sys/bus/iio/devices/iio:deviceX/in_powerY_apparent_raw
KernelVersion: 4.5
Contact: linux-iio@vger.kernel.org
Description:
@@ -189,6 +187,13 @@ Description:
unique to allow association with event codes. Units after
application of scale and offset are milliwatts.
+What: /sys/bus/iio/devices/iio:deviceX/in_powerY_powerfactor
+KernelVersion: 6.18
+Contact: linux-iio@vger.kernel.org
+Description:
+ Power factor measurement from channel Y. Power factor is the
+ ratio of active power to apparent power. The value is unitless.
+
What: /sys/bus/iio/devices/iio:deviceX/in_capacitanceY_raw
KernelVersion: 3.2
Contact: linux-iio@vger.kernel.org
@@ -227,7 +232,7 @@ Description:
same scaling as _raw.
What: /sys/bus/iio/devices/iio:deviceX/in_temp_raw
-What: /sys/bus/iio/devices/iio:deviceX/in_tempX_raw
+What: /sys/bus/iio/devices/iio:deviceX/in_tempY_raw
What: /sys/bus/iio/devices/iio:deviceX/in_temp_x_raw
What: /sys/bus/iio/devices/iio:deviceX/in_temp_y_raw
What: /sys/bus/iio/devices/iio:deviceX/in_temp_ambient_raw
@@ -243,7 +248,8 @@ Description:
less measurements. Units after application of scale and offset
are milli degrees Celsius.
-What: /sys/bus/iio/devices/iio:deviceX/in_tempX_input
+What: /sys/bus/iio/devices/iio:deviceX/in_tempY_input
+What: /sys/bus/iio/devices/iio:deviceX/in_temp_input
KernelVersion: 2.6.38
Contact: linux-iio@vger.kernel.org
Description:
@@ -279,6 +285,35 @@ Description:
but should match other such assignments on device).
Units after application of scale and offset are m/s^2.
+What: /sys/bus/iio/devices/iio:deviceX/in_deltaangl_x_raw
+What: /sys/bus/iio/devices/iio:deviceX/in_deltaangl_y_raw
+What: /sys/bus/iio/devices/iio:deviceX/in_deltaangl_z_raw
+KernelVersion: 6.5
+Contact: linux-iio@vger.kernel.org
+Description:
+ Angular displacement between two consecutive samples on x, y or
+ z (may be arbitrarily assigned but should match other such
+ assignments on device).
+ In order to compute the total angular displacement during a
+ desired period of time, the application should sum-up the delta
+ angle samples acquired during that time.
+ Units after application of scale and offset are radians.
+
+What: /sys/bus/iio/devices/iio:deviceX/in_deltavelocity_x_raw
+What: /sys/bus/iio/devices/iio:deviceX/in_deltavelocity_y_raw
+What: /sys/bus/iio/devices/iio:deviceX/in_deltavelocity_z_raw
+KernelVersion: 6.5
+Contact: linux-iio@vger.kernel.org
+Description:
+ The linear velocity change between two consecutive samples on x,
+ y or z (may be arbitrarily assigned but should match other such
+ assignments on device).
+ In order to compute the total linear velocity change during a
+ desired period of time, the application should sum-up the delta
+ velocity samples acquired during that time.
+ Units after application of scale and offset are meters per
+ second.
+
What: /sys/bus/iio/devices/iio:deviceX/in_angl_raw
What: /sys/bus/iio/devices/iio:deviceX/in_anglY_raw
KernelVersion: 4.17
@@ -333,10 +368,21 @@ Description:
What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_peak_raw
What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_peak_raw
What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_peak_raw
+What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_peak_raw
+What: /sys/bus/iio/devices/iio:deviceX/in_temp_peak_raw
KernelVersion: 2.6.36
Contact: linux-iio@vger.kernel.org
Description:
- Highest value since some reset condition. These
+ Highest value since some reset condition. These
+ attributes allow access to this and are otherwise
+ the direct equivalent of the <type>Y[_name]_raw attributes.
+
+What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_trough_raw
+What: /sys/bus/iio/devices/iio:deviceX/in_temp_trough_raw
+KernelVersion: 6.7
+Contact: linux-iio@vger.kernel.org
+Description:
+ Lowest value since some reset condition. These
attributes allow access to this and are otherwise
the direct equivalent of the <type>Y[_name]_raw attributes.
@@ -375,11 +421,11 @@ Contact: linux-iio@vger.kernel.org
Description:
Scaled humidity measurement in milli percent.
-What: /sys/bus/iio/devices/iio:deviceX/in_X_mean_raw
+What: /sys/bus/iio/devices/iio:deviceX/in_Y_mean_raw
KernelVersion: 3.5
Contact: linux-iio@vger.kernel.org
Description:
- Averaged raw measurement from channel X. The number of values
+ Averaged raw measurement from channel Y. The number of values
used for averaging is device specific. The converting rules for
normal raw values also applies to the averaged raw values.
@@ -387,18 +433,14 @@ What: /sys/bus/iio/devices/iio:deviceX/in_accel_offset
What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_offset
What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_offset
What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_offset
+What: /sys/bus/iio/devices/iio:deviceX/in_altvoltage_q_offset
+What: /sys/bus/iio/devices/iio:deviceX/in_altvoltage_i_offset
What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_offset
What: /sys/bus/iio/devices/iio:deviceX/in_voltage_offset
What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_i_offset
What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_q_offset
-What: /sys/bus/iio/devices/iio:deviceX/in_voltage_q_offset
-What: /sys/bus/iio/devices/iio:deviceX/in_voltage_i_offset
What: /sys/bus/iio/devices/iio:deviceX/in_currentY_offset
What: /sys/bus/iio/devices/iio:deviceX/in_current_offset
-What: /sys/bus/iio/devices/iio:deviceX/in_currentY_i_offset
-What: /sys/bus/iio/devices/iio:deviceX/in_currentY_q_offset
-What: /sys/bus/iio/devices/iio:deviceX/in_current_q_offset
-What: /sys/bus/iio/devices/iio:deviceX/in_current_i_offset
What: /sys/bus/iio/devices/iio:deviceX/in_tempY_offset
What: /sys/bus/iio/devices/iio:deviceX/in_temp_offset
What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_offset
@@ -407,7 +449,7 @@ What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_offset
What: /sys/bus/iio/devices/iio:deviceX/in_magn_offset
What: /sys/bus/iio/devices/iio:deviceX/in_rot_offset
What: /sys/bus/iio/devices/iio:deviceX/in_angl_offset
-What: /sys/bus/iio/devices/iio:deviceX/in_capacitanceX_offset
+What: /sys/bus/iio/devices/iio:deviceX/in_capacitanceY_offset
KernelVersion: 2.6.35
Contact: linux-iio@vger.kernel.org
Description:
@@ -426,21 +468,15 @@ Description:
to the _raw output.
What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_scale
-What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_i_scale
What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_q_scale
What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_scale
What: /sys/bus/iio/devices/iio:deviceX/in_voltage_scale
-What: /sys/bus/iio/devices/iio:deviceX/in_voltage_i_scale
-What: /sys/bus/iio/devices/iio:deviceX/in_voltage_q_scale
What: /sys/bus/iio/devices/iio:deviceX/in_voltage-voltage_scale
What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_scale
What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_scale
What: /sys/bus/iio/devices/iio:deviceX/in_currentY_scale
What: /sys/bus/iio/devices/iio:deviceX/in_currentY_supply_scale
What: /sys/bus/iio/devices/iio:deviceX/in_current_scale
-What: /sys/bus/iio/devices/iio:deviceX/in_currentY_i_scale
-What: /sys/bus/iio/devices/iio:deviceX/in_currentY_q_scale
-What: /sys/bus/iio/devices/iio:deviceX/in_current_i_scale
What: /sys/bus/iio/devices/iio:deviceX/in_current_q_scale
What: /sys/bus/iio/devices/iio:deviceX/in_accel_scale
What: /sys/bus/iio/devices/iio:deviceX/in_accel_peak_scale
@@ -461,10 +497,15 @@ What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_scale
What: /sys/bus/iio/devices/iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_scale
What: /sys/bus/iio/devices/iio:deviceX/in_illuminance_scale
What: /sys/bus/iio/devices/iio:deviceX/in_countY_scale
+What: /sys/bus/iio/devices/iio:deviceX/in_deltaangl_scale
+What: /sys/bus/iio/devices/iio:deviceX/in_deltavelocity_scale
What: /sys/bus/iio/devices/iio:deviceX/in_angl_scale
What: /sys/bus/iio/devices/iio:deviceX/in_intensity_x_scale
What: /sys/bus/iio/devices/iio:deviceX/in_intensity_y_scale
What: /sys/bus/iio/devices/iio:deviceX/in_intensity_z_scale
+What: /sys/bus/iio/devices/iio:deviceX/in_intensity_red_scale
+What: /sys/bus/iio/devices/iio:deviceX/in_intensity_green_scale
+What: /sys/bus/iio/devices/iio:deviceX/in_intensity_blue_scale
What: /sys/bus/iio/devices/iio:deviceX/in_concentration_co2_scale
KernelVersion: 2.6.35
Contact: linux-iio@vger.kernel.org
@@ -480,13 +521,27 @@ Description:
What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_calibbias
What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_calibbias
What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_calibbias
+What: /sys/bus/iio/devices/iio:deviceX/in_altvoltageY_i_calibbias
+What: /sys/bus/iio/devices/iio:deviceX/in_altvoltageY_q_calibbias
What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibbias
What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibbias
What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibbias
+What: /sys/bus/iio/devices/iio:deviceX/in_capacitance_calibbias
+What: /sys/bus/iio/devices/iio:deviceX/in_illuminance_calibbias
What: /sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibbias
-What: /sys/bus/iio/devices/iio:deviceX/in_proximity0_calibbias
-What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_calibbias
+What: /sys/bus/iio/devices/iio:deviceX/in_intensityY_calibbias
+What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_calibbias
+What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_calibbias
+What: /sys/bus/iio/devices/iio:deviceX/in_magn_z_calibbias
What: /sys/bus/iio/devices/iio:deviceX/in_pressure_calibbias
+What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_calibbias
+What: /sys/bus/iio/devices/iio:deviceX/in_proximity_calibbias
+What: /sys/bus/iio/devices/iio:deviceX/in_proximity0_calibbias
+What: /sys/bus/iio/devices/iio:deviceX/in_resistance_calibbias
+What: /sys/bus/iio/devices/iio:deviceX/in_temp_calibbias
+What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_calibbias
+What: /sys/bus/iio/devices/iio:deviceX/out_currentY_calibbias
+What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_calibbias
KernelVersion: 2.6.35
Contact: linux-iio@vger.kernel.org
Description:
@@ -498,6 +553,10 @@ Description:
What: /sys/bus/iio/devices/iio:deviceX/in_accel_calibbias_available
What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_calibbias_available
+What: /sys/bus/iio/devices/iio:deviceX/in_temp_calibbias_available
+What: /sys/bus/iio/devices/iio:deviceX/in_proximity_calibbias_available
+What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_calibbias_available
+What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_calibbias_available
KernelVersion: 5.8
Contact: linux-iio@vger.kernel.org
Description:
@@ -506,25 +565,54 @@ Description:
- a small discrete set of values like "0 2 4 6 8"
- a range specified as "[min step max]"
-What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_calibscale
-What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_calibscale
-What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_i_calibscale
-What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_q_calibscale
-What: /sys/bus/iio/devices/iio:deviceX/in_voltage_i_calibscale
-What: /sys/bus/iio/devices/iio:deviceX/in_voltage_q_calibscale
-What: /sys/bus/iio/devices/iio:deviceX/in_altvoltage_calibscale
-What: /sys/bus/iio/devices/iio:deviceX/in_voltage_calibscale
+What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_convdelay
+KernelVersion: 6.17
+Contact: linux-iio@vger.kernel.org
+Description:
+ Delay of start of conversion from common reference point shared
+ by all channels. Can be writable when used to compensate for
+ delay variation introduced by external filters feeding a
+ simultaneous sampling ADC.
+
+ E.g., for the ad7606 ADC series, this value is intended as a
+ configurable time delay in seconds, to correct delay introduced
+ by an optional external filtering circuit.
+
+What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_convdelay_available
+KernelVersion: 6.16
+Contact: linux-iio@vger.kernel.org
+Description:
+ Available values of convdelay. Maybe expressed as:
+
+ - a range specified as "[min step max]"
+
+ If shared across all channels, <type>_convdelay_available
+ is used.
+
What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_calibscale
What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_calibscale
What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_calibscale
+What: /sys/bus/iio/devices/iio:deviceX/in_altvoltage_calibscale
What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibscale
What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibscale
What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibscale
+What: /sys/bus/iio/devices/iio:deviceX/in_capacitance_calibscale
+What: /sys/bus/iio/devices/iio:deviceX/in_illuminance_calibscale
What: /sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibscale
-What: /sys/bus/iio/devices/iio:deviceX/in_proximity0_calibscale
-What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_calibscale
+What: /sys/bus/iio/devices/iio:deviceX/in_intensity_both_calibscale
+What: /sys/bus/iio/devices/iio:deviceX/in_intensity_calibscale
+What: /sys/bus/iio/devices/iio:deviceX/in_intensity_ir_calibscale
+What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_calibscale
+What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_calibscale
+What: /sys/bus/iio/devices/iio:deviceX/in_magn_z_calibscale
What: /sys/bus/iio/devices/iio:deviceX/in_pressure_calibscale
-What: /sys/bus/iio/devices/iio:deviceX/in_illuminance_calibscale
+What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_calibscale
+What: /sys/bus/iio/devices/iio:deviceX/in_proximity0_calibscale
+What: /sys/bus/iio/devices/iio:deviceX/in_voltage_calibscale
+What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_calibscale
+What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_calibscale
+What: /sys/bus/iio/devices/iio:deviceX/out_currentY_calibscale
+What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_calibscale
KernelVersion: 2.6.35
Contact: linux-iio@vger.kernel.org
Description:
@@ -532,6 +620,20 @@ Description:
production inaccuracies). If shared across all channels,
<type>_calibscale is used.
+What: /sys/bus/iio/devices/iio:deviceX/in_illuminanceY_calibscale_available
+What: /sys/bus/iio/devices/iio:deviceX/in_intensityY_calibscale_available
+What: /sys/bus/iio/devices/iio:deviceX/in_proximityY_calibscale_available
+What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_calibscale_available
+KernelVersion: 4.8
+Contact: linux-iio@vger.kernel.org
+Description:
+ Available values of calibscale. Maybe expressed as either of:
+
+ - a small discrete set of values like "1 8 16"
+ - a range specified as "[min step max]"
+
+ If shared across all channels, <type>_calibscale_available is used.
+
What: /sys/bus/iio/devices/iio:deviceX/in_activity_calibgender
What: /sys/bus/iio/devices/iio:deviceX/in_energy_calibgender
What: /sys/bus/iio/devices/iio:deviceX/in_distance_calibgender
@@ -576,10 +678,10 @@ What: /sys/.../iio:deviceX/in_magn_scale_available
What: /sys/.../iio:deviceX/in_illuminance_scale_available
What: /sys/.../iio:deviceX/in_intensity_scale_available
What: /sys/.../iio:deviceX/in_proximity_scale_available
-What: /sys/.../iio:deviceX/in_voltageX_scale_available
+What: /sys/.../iio:deviceX/in_voltageY_scale_available
What: /sys/.../iio:deviceX/in_voltage-voltage_scale_available
-What: /sys/.../iio:deviceX/out_voltageX_scale_available
-What: /sys/.../iio:deviceX/out_altvoltageX_scale_available
+What: /sys/.../iio:deviceX/out_voltageY_scale_available
+What: /sys/.../iio:deviceX/out_altvoltageY_scale_available
What: /sys/.../iio:deviceX/in_capacitance_scale_available
What: /sys/.../iio:deviceX/in_pressure_scale_available
What: /sys/.../iio:deviceX/in_pressureY_scale_available
@@ -587,7 +689,9 @@ KernelVersion: 2.6.35
Contact: linux-iio@vger.kernel.org
Description:
If a discrete set of scale values is available, they
- are listed in this attribute.
+ are listed in this attribute. Unlike illumination,
+ multiplying intensity by intensity_scale does not
+ yield value with any standardized unit.
What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_hardwaregain
What: /sys/bus/iio/devices/iio:deviceX/in_intensity_hardwaregain
@@ -595,6 +699,7 @@ What: /sys/bus/iio/devices/iio:deviceX/in_intensity_red_hardwaregain
What: /sys/bus/iio/devices/iio:deviceX/in_intensity_green_hardwaregain
What: /sys/bus/iio/devices/iio:deviceX/in_intensity_blue_hardwaregain
What: /sys/bus/iio/devices/iio:deviceX/in_intensity_clear_hardwaregain
+What: /sys/bus/iio/devices/iio:deviceX/in_illuminance_hardwaregain
KernelVersion: 2.6.35
Contact: linux-iio@vger.kernel.org
Description:
@@ -662,7 +767,10 @@ Description:
1kohm_to_gnd: connected to ground via an 1kOhm resistor,
2.5kohm_to_gnd: connected to ground via a 2.5kOhm resistor,
6kohm_to_gnd: connected to ground via a 6kOhm resistor,
+ 7.7kohm_to_gnd: connected to ground via a 7.7kOhm resistor,
20kohm_to_gnd: connected to ground via a 20kOhm resistor,
+ 32kohm_to_gnd: connected to ground via a 32kOhm resistor,
+ 42kohm_to_gnd: connected to ground via a 42kOhm resistor,
90kohm_to_gnd: connected to ground via a 90kOhm resistor,
100kohm_to_gnd: connected to ground via an 100kOhm resistor,
125kohm_to_gnd: connected to ground via an 125kOhm resistor,
@@ -723,7 +831,11 @@ Description:
all the other channels, since it involves changing the VCO
fundamental output frequency.
+What: /sys/bus/iio/devices/iio:deviceX/in_altvoltageY_i_phase
+What: /sys/bus/iio/devices/iio:deviceX/in_altvoltageY_q_phase
What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_phase
+What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_i_phase
+What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_q_phase
KernelVersion: 3.4.0
Contact: linux-iio@vger.kernel.org
Description:
@@ -786,6 +898,7 @@ What: /sys/.../iio:deviceX/events/in_tempY_thresh_rising_en
What: /sys/.../iio:deviceX/events/in_tempY_thresh_falling_en
What: /sys/.../iio:deviceX/events/in_capacitanceY_thresh_rising_en
What: /sys/.../iio:deviceX/events/in_capacitanceY_thresh_falling_en
+What: /sys/.../iio:deviceX/events/in_pressure_thresh_rising_en
KernelVersion: 2.6.37
Contact: linux-iio@vger.kernel.org
Description:
@@ -814,6 +927,7 @@ What: /sys/.../iio:deviceX/events/in_accel_y_roc_rising_en
What: /sys/.../iio:deviceX/events/in_accel_y_roc_falling_en
What: /sys/.../iio:deviceX/events/in_accel_z_roc_rising_en
What: /sys/.../iio:deviceX/events/in_accel_z_roc_falling_en
+What: /sys/.../iio:deviceX/events/in_accel_x&y&z_roc_rising_en
What: /sys/.../iio:deviceX/events/in_anglvel_x_roc_rising_en
What: /sys/.../iio:deviceX/events/in_anglvel_x_roc_falling_en
What: /sys/.../iio:deviceX/events/in_anglvel_y_roc_rising_en
@@ -889,6 +1003,7 @@ Description:
to the raw signal, allowing slow tracking to resume and the
adaptive threshold event detection to function as expected.
+What: /sys/.../events/in_accel_mag_adaptive_rising_value
What: /sys/.../events/in_accel_thresh_rising_value
What: /sys/.../events/in_accel_thresh_falling_value
What: /sys/.../events/in_accel_x_raw_thresh_rising_value
@@ -933,6 +1048,7 @@ What: /sys/.../events/in_capacitanceY_thresh_rising_value
What: /sys/.../events/in_capacitanceY_thresh_falling_value
What: /sys/.../events/in_capacitanceY_thresh_adaptive_rising_value
What: /sys/.../events/in_capacitanceY_thresh_falling_rising_value
+What: /sys/.../events/in_pressure_thresh_rising_value
KernelVersion: 2.6.37
Contact: linux-iio@vger.kernel.org
Description:
@@ -1035,6 +1151,7 @@ Description:
will get activated once in_voltage0_raw goes above 1200 and will become
deactivated again once the value falls below 1150.
+What: /sys/.../events/in_accel_roc_rising_value
What: /sys/.../events/in_accel_x_raw_roc_rising_value
What: /sys/.../events/in_accel_x_raw_roc_falling_value
What: /sys/.../events/in_accel_y_raw_roc_rising_value
@@ -1081,6 +1198,8 @@ Description:
value is in raw device units or in processed units (as _raw
and _input do on sysfs direct channel read attributes).
+What: /sys/.../events/in_accel_mag_adaptive_rising_period
+What: /sys/.../events/in_accel_roc_rising_period
What: /sys/.../events/in_accel_x_thresh_rising_period
What: /sys/.../events/in_accel_x_thresh_falling_period
What: /sys/.../events/in_accel_x_roc_rising_period
@@ -1250,6 +1369,15 @@ Description:
number or direction is not specified, applies to all channels of
this type.
+What: /sys/.../iio:deviceX/events/in_accel_x_mag_adaptive_rising_en
+What: /sys/.../iio:deviceX/events/in_accel_y_mag_adaptive_rising_en
+What: /sys/.../iio:deviceX/events/in_accel_z_mag_adaptive_rising_en
+KernelVersion: 2.6.37
+Contact: linux-iio@vger.kernel.org
+Description:
+ Similar to in_accel_x_thresh[_rising|_falling]_en, but here the
+ magnitude of the channel is compared to the adaptive threshold.
+
What: /sys/.../iio:deviceX/events/in_accel_mag_referenced_en
What: /sys/.../iio:deviceX/events/in_accel_mag_referenced_rising_en
What: /sys/.../iio:deviceX/events/in_accel_mag_referenced_falling_en
@@ -1332,6 +1460,12 @@ Description:
What: /sys/.../iio:deviceX/bufferY/in_accel_x_en
What: /sys/.../iio:deviceX/bufferY/in_accel_y_en
What: /sys/.../iio:deviceX/bufferY/in_accel_z_en
+What: /sys/.../iio:deviceX/bufferY/in_deltaangl_x_en
+What: /sys/.../iio:deviceX/bufferY/in_deltaangl_y_en
+What: /sys/.../iio:deviceX/bufferY/in_deltaangl_z_en
+What: /sys/.../iio:deviceX/bufferY/in_deltavelocity_x_en
+What: /sys/.../iio:deviceX/bufferY/in_deltavelocity_y_en
+What: /sys/.../iio:deviceX/bufferY/in_deltavelocity_z_en
What: /sys/.../iio:deviceX/bufferY/in_anglvel_x_en
What: /sys/.../iio:deviceX/bufferY/in_anglvel_y_en
What: /sys/.../iio:deviceX/bufferY/in_anglvel_z_en
@@ -1346,10 +1480,6 @@ What: /sys/.../iio:deviceX/bufferY/in_timestamp_en
What: /sys/.../iio:deviceX/bufferY/in_voltageY_supply_en
What: /sys/.../iio:deviceX/bufferY/in_voltageY_en
What: /sys/.../iio:deviceX/bufferY/in_voltageY-voltageZ_en
-What: /sys/.../iio:deviceX/bufferY/in_voltageY_i_en
-What: /sys/.../iio:deviceX/bufferY/in_voltageY_q_en
-What: /sys/.../iio:deviceX/bufferY/in_voltage_i_en
-What: /sys/.../iio:deviceX/bufferY/in_voltage_q_en
What: /sys/.../iio:deviceX/bufferY/in_incli_x_en
What: /sys/.../iio:deviceX/bufferY/in_incli_y_en
What: /sys/.../iio:deviceX/bufferY/in_pressureY_en
@@ -1362,16 +1492,14 @@ Description:
Scan element control for triggered data capture.
What: /sys/.../iio:deviceX/bufferY/in_accel_type
+What: /sys/.../iio:deviceX/bufferY/in_deltaangl_type
+What: /sys/.../iio:deviceX/bufferY/in_deltavelocity_type
What: /sys/.../iio:deviceX/bufferY/in_anglvel_type
What: /sys/.../iio:deviceX/bufferY/in_magn_type
What: /sys/.../iio:deviceX/bufferY/in_incli_type
What: /sys/.../iio:deviceX/bufferY/in_voltageY_type
What: /sys/.../iio:deviceX/bufferY/in_voltage_type
What: /sys/.../iio:deviceX/bufferY/in_voltageY_supply_type
-What: /sys/.../iio:deviceX/bufferY/in_voltageY_i_type
-What: /sys/.../iio:deviceX/bufferY/in_voltageY_q_type
-What: /sys/.../iio:deviceX/bufferY/in_voltage_i_type
-What: /sys/.../iio:deviceX/bufferY/in_voltage_q_type
What: /sys/.../iio:deviceX/bufferY/in_timestamp_type
What: /sys/.../iio:deviceX/bufferY/in_pressureY_type
What: /sys/.../iio:deviceX/bufferY/in_pressure_type
@@ -1409,13 +1537,15 @@ Description:
What: /sys/.../iio:deviceX/bufferY/in_voltageY_index
What: /sys/.../iio:deviceX/bufferY/in_voltageY_supply_index
-What: /sys/.../iio:deviceX/bufferY/in_voltageY_i_index
-What: /sys/.../iio:deviceX/bufferY/in_voltageY_q_index
-What: /sys/.../iio:deviceX/bufferY/in_voltage_i_index
-What: /sys/.../iio:deviceX/bufferY/in_voltage_q_index
What: /sys/.../iio:deviceX/bufferY/in_accel_x_index
What: /sys/.../iio:deviceX/bufferY/in_accel_y_index
What: /sys/.../iio:deviceX/bufferY/in_accel_z_index
+What: /sys/.../iio:deviceX/bufferY/in_deltaangl_x_index
+What: /sys/.../iio:deviceX/bufferY/in_deltaangl_y_index
+What: /sys/.../iio:deviceX/bufferY/in_deltaangl_z_index
+What: /sys/.../iio:deviceX/bufferY/in_deltavelocity_x_index
+What: /sys/.../iio:deviceX/bufferY/in_deltavelocity_y_index
+What: /sys/.../iio:deviceX/bufferY/in_deltavelocity_z_index
What: /sys/.../iio:deviceX/bufferY/in_anglvel_x_index
What: /sys/.../iio:deviceX/bufferY/in_anglvel_y_index
What: /sys/.../iio:deviceX/bufferY/in_anglvel_z_index
@@ -1461,7 +1591,7 @@ Description:
This attribute is used to read the amount of quadrature error
present in the device at a given time.
-What: /sys/.../iio:deviceX/in_accelX_power_mode
+What: /sys/.../iio:deviceX/in_accelY_power_mode
KernelVersion: 3.11
Contact: linux-iio@vger.kernel.org
Description:
@@ -1473,6 +1603,9 @@ Description:
What: /sys/.../iio:deviceX/in_energy_input
What: /sys/.../iio:deviceX/in_energy_raw
+What: /sys/.../iio:deviceX/in_energyY_active_raw
+What: /sys/.../iio:deviceX/in_energyY_reactive_raw
+What: /sys/.../iio:deviceX/in_energyY_apparent_raw
KernelVersion: 4.0
Contact: linux-iio@vger.kernel.org
Description:
@@ -1529,7 +1662,13 @@ What: /sys/.../iio:deviceX/in_intensityY_raw
What: /sys/.../iio:deviceX/in_intensityY_ir_raw
What: /sys/.../iio:deviceX/in_intensityY_both_raw
What: /sys/.../iio:deviceX/in_intensityY_uv_raw
+What: /sys/.../iio:deviceX/in_intensityY_uva_raw
+What: /sys/.../iio:deviceX/in_intensityY_uvb_raw
What: /sys/.../iio:deviceX/in_intensityY_duv_raw
+What: /sys/.../iio:deviceX/in_intensity_red_raw
+What: /sys/.../iio:deviceX/in_intensity_green_raw
+What: /sys/.../iio:deviceX/in_intensity_blue_raw
+What: /sys/.../iio:deviceX/in_intensity_clear_raw
KernelVersion: 3.4
Contact: linux-iio@vger.kernel.org
Description:
@@ -1537,8 +1676,9 @@ Description:
that measurements contain visible and infrared light
components or just infrared light, respectively. Modifier
uv indicates that measurements contain ultraviolet light
- components. Modifier duv indicates that measurements
- contain deep ultraviolet light components.
+ components. Modifiers uva, uvb and duv indicate that
+ measurements contain A, B or deep (C) ultraviolet light
+ components respectively.
What: /sys/.../iio:deviceX/in_uvindex_input
KernelVersion: 4.6
@@ -1587,22 +1727,31 @@ Description:
Raw value of rotation from true/magnetic north measured with
or without compensation from tilt sensors.
-What: /sys/bus/iio/devices/iio:deviceX/in_currentX_raw
-What: /sys/bus/iio/devices/iio:deviceX/in_currentX_i_raw
-What: /sys/bus/iio/devices/iio:deviceX/in_currentX_q_raw
-KernelVersion: 3.18
+What: /sys/bus/iio/devices/iio:deviceX/in_currentY_raw
+What: /sys/bus/iio/devices/iio:deviceX/in_currentY_supply_raw
+KernelVersion: 3.17
Contact: linux-iio@vger.kernel.org
Description:
- Raw current measurement from channel X. Units are in milliamps
+ Raw current measurement from channel Y. Units are in milliamps
after application of scale and offset. If no offset or scale is
present, output should be considered as processed with the
- unit in milliamps.
+ unit in milliamps. In special cases where the channel does not
+ correspond to externally available input one of the named
+ versions may be used.
Channels with 'i' and 'q' modifiers always exist in pairs and both
channels refer to the same signal. The 'i' channel contains the in-phase
component of the signal while the 'q' channel contains the quadrature
component.
+What: /sys/bus/iio/devices/iio:deviceX/in_altcurrentY_rms_raw
+KernelVersion: 6.18
+Contact: linux-iio@vger.kernel.org
+Description:
+ Raw (unscaled no bias removal etc.) Root Mean Square (RMS) current
+ measurement from channel Y. Units after application of scale and
+ offset are milliamps.
+
What: /sys/.../iio:deviceX/in_energy_en
What: /sys/.../iio:deviceX/in_distance_en
What: /sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_en
@@ -1760,9 +1909,9 @@ Description:
hardware fifo watermark level.
What: /sys/bus/iio/devices/iio:deviceX/in_temp_calibemissivity
-What: /sys/bus/iio/devices/iio:deviceX/in_tempX_calibemissivity
+What: /sys/bus/iio/devices/iio:deviceX/in_tempY_calibemissivity
What: /sys/bus/iio/devices/iio:deviceX/in_temp_object_calibemissivity
-What: /sys/bus/iio/devices/iio:deviceX/in_tempX_object_calibemissivity
+What: /sys/bus/iio/devices/iio:deviceX/in_tempY_object_calibemissivity
KernelVersion: 4.1
Contact: linux-iio@vger.kernel.org
Description:
@@ -1783,17 +1932,17 @@ Description:
is considered as one sample for <type>[_name]_sampling_frequency.
What: /sys/bus/iio/devices/iio:deviceX/in_concentration_raw
-What: /sys/bus/iio/devices/iio:deviceX/in_concentrationX_raw
+What: /sys/bus/iio/devices/iio:deviceX/in_concentrationY_raw
What: /sys/bus/iio/devices/iio:deviceX/in_concentration_co2_raw
-What: /sys/bus/iio/devices/iio:deviceX/in_concentrationX_co2_raw
+What: /sys/bus/iio/devices/iio:deviceX/in_concentrationY_co2_raw
What: /sys/bus/iio/devices/iio:deviceX/in_concentration_ethanol_raw
-What: /sys/bus/iio/devices/iio:deviceX/in_concentrationX_ethanol_raw
+What: /sys/bus/iio/devices/iio:deviceX/in_concentrationY_ethanol_raw
What: /sys/bus/iio/devices/iio:deviceX/in_concentration_h2_raw
-What: /sys/bus/iio/devices/iio:deviceX/in_concentrationX_h2_raw
+What: /sys/bus/iio/devices/iio:deviceX/in_concentrationY_h2_raw
What: /sys/bus/iio/devices/iio:deviceX/in_concentration_o2_raw
-What: /sys/bus/iio/devices/iio:deviceX/in_concentrationX_o2_raw
+What: /sys/bus/iio/devices/iio:deviceX/in_concentrationY_o2_raw
What: /sys/bus/iio/devices/iio:deviceX/in_concentration_voc_raw
-What: /sys/bus/iio/devices/iio:deviceX/in_concentrationX_voc_raw
+What: /sys/bus/iio/devices/iio:deviceX/in_concentrationY_voc_raw
KernelVersion: 4.3
Contact: linux-iio@vger.kernel.org
Description:
@@ -1801,9 +1950,9 @@ Description:
after application of scale and offset are percents.
What: /sys/bus/iio/devices/iio:deviceX/in_resistance_raw
-What: /sys/bus/iio/devices/iio:deviceX/in_resistanceX_raw
+What: /sys/bus/iio/devices/iio:deviceX/in_resistanceY_raw
What: /sys/bus/iio/devices/iio:deviceX/out_resistance_raw
-What: /sys/bus/iio/devices/iio:deviceX/out_resistanceX_raw
+What: /sys/bus/iio/devices/iio:deviceX/out_resistanceY_raw
KernelVersion: 4.3
Contact: linux-iio@vger.kernel.org
Description:
@@ -1992,7 +2141,7 @@ Description:
One of the following thermocouple types: B, E, J, K, N, R, S, T.
What: /sys/bus/iio/devices/iio:deviceX/in_temp_object_calibambient
-What: /sys/bus/iio/devices/iio:deviceX/in_tempX_object_calibambient
+What: /sys/bus/iio/devices/iio:deviceX/in_tempY_object_calibambient
KernelVersion: 5.10
Contact: linux-iio@vger.kernel.org
Description:
@@ -2068,9 +2217,9 @@ Description:
- a range specified as "[min step max]"
-What: /sys/bus/iio/devices/iio:deviceX/in_voltageX_sampling_frequency
+What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_sampling_frequency
What: /sys/bus/iio/devices/iio:deviceX/in_powerY_sampling_frequency
-What: /sys/bus/iio/devices/iio:deviceX/in_currentZ_sampling_frequency
+What: /sys/bus/iio/devices/iio:deviceX/in_currentY_sampling_frequency
KernelVersion: 5.20
Contact: linux-iio@vger.kernel.org
Description:
@@ -2163,3 +2312,149 @@ Contact: linux-iio@vger.kernel.org
Description:
An example format is 16-bytes, 2-digits-per-byte, HEX-string
representing the sensor unique ID number.
+
+What: /sys/bus/iio/devices/iio:deviceX/filter_type_available
+What: /sys/bus/iio/devices/iio:deviceX/in_voltage-voltage_filter_type_available
+KernelVersion: 6.1
+Contact: linux-iio@vger.kernel.org
+Description:
+ Reading returns a list with the possible filter modes. Options
+ for the attribute:
+
+ * "none" - Filter is disabled/bypassed.
+ * "sinc1" - The digital sinc1 filter. Fast 1st
+ conversion time. Poor noise performance.
+ * "sinc3" - The digital sinc3 filter. Moderate 1st
+ conversion time. Good noise performance.
+ * "sinc3+pf1" - Sinc3 + device specific Post Filter 1.
+ * "sinc3+pf2" - Sinc3 + device specific Post Filter 2.
+ * "sinc3+pf3" - Sinc3 + device specific Post Filter 3.
+ * "sinc3+pf4" - Sinc3 + device specific Post Filter 4.
+ * "sinc3+rej60" - Sinc3 + 60Hz rejection.
+ * "sinc3+sinc1" - Sinc3 + averaging by 8. Low 1st conversion
+ time.
+ * "sinc4" - Sinc 4. Excellent noise performance. Long
+ 1st conversion time.
+ * "sinc4+lp" - Sinc4 + Low Pass Filter.
+ * "sinc4+sinc1" - Sinc4 + averaging by 8. Low 1st conversion
+ time.
+ * "sinc4+rej60" - Sinc4 + 60Hz rejection.
+ * "sinc5" - The digital sinc5 filter. Excellent noise
+ performance
+ * "sinc5+avg" - Sinc5 + averaging by 4.
+ * "sinc5+pf1" - Sinc5 + device specific Post Filter 1.
+ * "sinc5+sinc1" - Sinc5 + Sinc1.
+ * "sinc5+sinc1+pf1" - Sinc5 + Sinc1 + device specific Post Filter 1.
+ * "sinc5+sinc1+pf2" - Sinc5 + Sinc1 + device specific Post Filter 2.
+ * "sinc5+sinc1+pf3" - Sinc5 + Sinc1 + device specific Post Filter 3.
+ * "sinc5+sinc1+pf4" - Sinc5 + Sinc1 + device specific Post Filter 4.
+ * "wideband" - filter with wideband low ripple passband
+ and sharp transition band.
+
+What: /sys/bus/iio/devices/iio:deviceX/filter_type
+What: /sys/bus/iio/devices/iio:deviceX/in_voltageY-voltageZ_filter_type
+KernelVersion: 6.1
+Contact: linux-iio@vger.kernel.org
+Description:
+ Specifies which filter type apply to the channel. The possible
+ values are given by the filter_type_available attribute.
+
+What: /sys/.../events/in_proximity_thresh_either_runningperiod
+KernelVersion: 6.6
+Contact: linux-iio@vger.kernel.org
+Description:
+ A running period of time (in seconds) for which
+ in_proximity_thresh_either_runningcount amount of conditions
+ must occur before an event is generated. If direction is not
+ specified then this period applies to both directions.
+
+What: /sys/.../events/in_proximity_thresh_either_runningcount
+KernelVersion: 6.6
+Contact: linux-iio@vger.kernel.org
+Description:
+ Number of conditions that must occur, during a running
+ period, before an event is generated.
+
+What: /sys/bus/iio/devices/iio:deviceX/in_colortemp_raw
+KernelVersion: 6.7
+Contact: linux-iio@vger.kernel.org
+Description:
+ Represents light color temperature, which measures light color
+ temperature in Kelvin.
+
+What: /sys/bus/iio/devices/iio:deviceX/in_chromaticity_x_raw
+What: /sys/bus/iio/devices/iio:deviceX/in_chromaticity_y_raw
+KernelVersion: 6.7
+Contact: linux-iio@vger.kernel.org
+Description:
+ The x and y light color coordinate on the CIE 1931 chromaticity
+ diagram.
+
+What: /sys/bus/iio/devices/iio:deviceX/events/in_altvoltageY_mag_either_label
+What: /sys/bus/iio/devices/iio:deviceX/events/in_altvoltageY_mag_rising_label
+What: /sys/bus/iio/devices/iio:deviceX/events/in_altvoltageY_thresh_falling_label
+What: /sys/bus/iio/devices/iio:deviceX/events/in_altvoltageY_thresh_rising_label
+What: /sys/bus/iio/devices/iio:deviceX/events/in_anglvelY_mag_rising_label
+What: /sys/bus/iio/devices/iio:deviceX/events/in_anglY_thresh_rising_label
+What: /sys/bus/iio/devices/iio:deviceX/events/in_phaseY_mag_rising_label
+KernelVersion: 6.7
+Contact: linux-iio@vger.kernel.org
+Description:
+ Optional symbolic label to a device channel event.
+ If a label is defined for this event add that to the event
+ specific attributes. This is useful for userspace to be able to
+ better identify an individual event.
+
+What: /sys/.../events/in_accel_gesture_tap_wait_timeout
+KernelVersion: 6.7
+Contact: linux-iio@vger.kernel.org
+Description:
+ Enable tap gesture confirmation with timeout.
+
+What: /sys/.../events/in_accel_gesture_tap_wait_dur
+KernelVersion: 6.7
+Contact: linux-iio@vger.kernel.org
+Description:
+ Timeout value in seconds for tap gesture confirmation.
+
+What: /sys/.../events/in_accel_gesture_tap_wait_dur_available
+KernelVersion: 6.7
+Contact: linux-iio@vger.kernel.org
+Description:
+ List of available timeout value for tap gesture confirmation.
+
+What: /sys/.../iio:deviceX/in_shunt_resistor
+What: /sys/.../iio:deviceX/in_current_shunt_resistor
+What: /sys/.../iio:deviceX/in_power_shunt_resistor
+KernelVersion: 6.10
+Contact: linux-iio@vger.kernel.org
+Description:
+ The value of current sense resistor in Ohms.
+
+What: /sys/.../iio:deviceX/in_attention_input
+KernelVersion: 6.13
+Contact: linux-iio@vger.kernel.org
+Description:
+ Value representing the user's attention to the system expressed
+ in units as percentage. This usually means if the user is
+ looking at the screen or not.
+
+What: /sys/.../events/in_accel_value_available
+KernelVersion: 6.18
+Contact: linux-iio@vger.kernel.org
+Description:
+ List of available threshold values for acceleration event
+ generation. Applies to all event types on in_accel channels.
+ Units after application of scale and offset are m/s^2.
+ Expressed as:
+
+ - a range specified as "[min step max]"
+
+What: /sys/.../events/in_accel_period_available
+KernelVersion: 6.18
+Contact: linux-iio@vger.kernel.org
+Description:
+ List of available periods for accelerometer event detection in
+ seconds, expressed as:
+
+ - a range specified as "[min step max]"
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-ad9739a b/Documentation/ABI/testing/sysfs-bus-iio-ad9739a
new file mode 100644
index 000000000000..ed59299e6f8d
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-iio-ad9739a
@@ -0,0 +1,19 @@
+What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_operating_mode
+KernelVersion: 6.9
+Contact: linux-iio@vger.kernel.org
+Description:
+ DAC operating mode. One of the following modes can be selected:
+
+ * normal: This is DAC normal mode.
+ * mixed-mode: In this mode the output is effectively chopped at
+ the DAC sample rate. This has the effect of
+ reducing the power of the fundamental signal while
+ increasing the power of the images centered around
+ the DAC sample rate, thus improving the output
+ power of these images.
+
+What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_operating_mode_available
+KernelVersion: 6.9
+Contact: linux-iio@vger.kernel.org
+Description:
+ Available operating modes.
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-adc-ad-sigma-delta b/Documentation/ABI/testing/sysfs-bus-iio-adc-ad-sigma-delta
new file mode 100644
index 000000000000..a5a8a579f4f3
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-iio-adc-ad-sigma-delta
@@ -0,0 +1,23 @@
+What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_sys_calibration
+KernelVersion: 5.5
+Contact: linux-iio@vger.kernel.org
+Description:
+ This attribute, if available, initiates the system calibration procedure. This is done on a
+ single channel at a time. Write '1' to start the calibration.
+
+What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_sys_calibration_mode_available
+KernelVersion: 5.5
+Contact: linux-iio@vger.kernel.org
+Description:
+ This attribute, if available, returns a list with the possible calibration modes.
+ There are two available options:
+ "zero_scale" - calibrate to zero scale
+ "full_scale" - calibrate to full scale
+
+What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_sys_calibration_mode
+KernelVersion: 5.5
+Contact: linux-iio@vger.kernel.org
+Description:
+ This attribute, if available, sets up the calibration mode used in the system calibration
+ procedure. Reading returns the current calibration mode.
+ Writing sets the system calibration mode.
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-adc-ad4130 b/Documentation/ABI/testing/sysfs-bus-iio-adc-ad4130
index f24ed6687e90..d3fad27421d6 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio-adc-ad4130
+++ b/Documentation/ABI/testing/sysfs-bus-iio-adc-ad4130
@@ -4,43 +4,17 @@ Contact: linux-iio@vger.kernel.org
Description:
Reading returns a list with the possible filter modes.
- * "sinc4" - Sinc 4. Excellent noise performance. Long
- 1st conversion time. No natural 50/60Hz rejection.
-
- * "sinc4+sinc1" - Sinc4 + averaging by 8. Low 1st conversion
- time.
-
- * "sinc3" - Sinc3. Moderate 1st conversion time.
- Good noise performance.
-
- * "sinc3+rej60" - Sinc3 + 60Hz rejection. At a sampling
- frequency of 50Hz, achieves simultaneous 50Hz and 60Hz
- rejection.
-
- * "sinc3+sinc1" - Sinc3 + averaging by 8. Low 1st conversion
- time. Best used with a sampling frequency of at least
- 216.19Hz.
-
- * "sinc3+pf1" - Sinc3 + Post Filter 1. 53dB rejection @
- 50Hz, 58dB rejection @ 60Hz.
-
- * "sinc3+pf2" - Sinc3 + Post Filter 2. 70dB rejection @
- 50Hz, 70dB rejection @ 60Hz.
-
- * "sinc3+pf3" - Sinc3 + Post Filter 3. 99dB rejection @
- 50Hz, 103dB rejection @ 60Hz.
-
- * "sinc3+pf4" - Sinc3 + Post Filter 4. 103dB rejection @
- 50Hz, 109dB rejection @ 60Hz.
+ This ABI is only kept for backwards compatibility and the values
+ returned are identical to filter_type_available attribute
+ documented in Documentation/ABI/testing/sysfs-bus-iio. Please,
+ use filter_type_available like ABI to provide filter options for
+ new drivers.
What: /sys/bus/iio/devices/iio:deviceX/in_voltageY-voltageZ_filter_mode
KernelVersion: 6.2
Contact: linux-iio@vger.kernel.org
Description:
- Set the filter mode of the differential channel. When the filter
- mode changes, the in_voltageY-voltageZ_sampling_frequency and
- in_voltageY-voltageZ_sampling_frequency_available attributes
- might also change to accommodate the new filter mode.
- If the current sampling frequency is out of range for the new
- filter mode, the sampling frequency will be changed to the
- closest valid one.
+ This ABI is only kept for backwards compatibility and the values
+ returned are identical to in_voltageY-voltageZ_filter_type
+ attribute documented in Documentation/ABI/testing/sysfs-bus-iio.
+ Please, use in_voltageY-voltageZ_filter_type for new drivers.
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-adc-ad7192 b/Documentation/ABI/testing/sysfs-bus-iio-adc-ad7192
index f8315202c8f0..28be1cabf112 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio-adc-ad7192
+++ b/Documentation/ABI/testing/sysfs-bus-iio-adc-ad7192
@@ -19,33 +19,9 @@ Description:
the bridge can be disconnected (when it is not being used
using the bridge_switch_en attribute.
-What: /sys/bus/iio/devices/iio:deviceX/in_voltagex_sys_calibration
-KernelVersion:
-Contact: linux-iio@vger.kernel.org
-Description:
- Initiates the system calibration procedure. This is done on a
- single channel at a time. Write '1' to start the calibration.
-
What: /sys/bus/iio/devices/iio:deviceX/in_voltage2-voltage2_shorted_raw
KernelVersion:
Contact: linux-iio@vger.kernel.org
Description:
Measure voltage from AIN2 pin connected to AIN(+)
and AIN(-) shorted.
-
-What: /sys/bus/iio/devices/iio:deviceX/in_voltagex_sys_calibration_mode_available
-KernelVersion:
-Contact: linux-iio@vger.kernel.org
-Description:
- Reading returns a list with the possible calibration modes.
- There are two available options:
- "zero_scale" - calibrate to zero scale
- "full_scale" - calibrate to full scale
-
-What: /sys/bus/iio/devices/iio:deviceX/in_voltagex_sys_calibration_mode
-KernelVersion:
-Contact: linux-iio@vger.kernel.org
-Description:
- Sets up the calibration mode used in the system calibration
- procedure. Reading returns the current calibration mode.
- Writing sets the system calibration mode.
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-adc-max9611 b/Documentation/ABI/testing/sysfs-bus-iio-adc-max9611
deleted file mode 100644
index 6d2d2b094941..000000000000
--- a/Documentation/ABI/testing/sysfs-bus-iio-adc-max9611
+++ /dev/null
@@ -1,17 +0,0 @@
-What: /sys/bus/iio/devices/iio:deviceX/in_power_shunt_resistor
-Date: March 2017
-KernelVersion: 4.12
-Contact: linux-iio@vger.kernel.org
-Description: The value of the shunt resistor used to compute power drain on
- common input voltage pin (RS+). In Ohms.
-
-What: /sys/bus/iio/devices/iio:deviceX/in_current_shunt_resistor
-Date: March 2017
-KernelVersion: 4.12
-Contact: linux-iio@vger.kernel.org
-Description: The value of the shunt resistor used to compute current flowing
- between RS+ and RS- voltage sense inputs. In Ohms.
-
-These attributes describe a single physical component, exposed as two distinct
-attributes as it is used to calculate two different values: power load and
-current flowing between RS+ and RS- inputs.
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-adc-mcp3564 b/Documentation/ABI/testing/sysfs-bus-iio-adc-mcp3564
new file mode 100644
index 000000000000..b168aa44b233
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-iio-adc-mcp3564
@@ -0,0 +1,53 @@
+What: /sys/bus/iio/devices/iio:deviceX/boost_current_gain
+KernelVersion: 6.4
+Contact: linux-iio@vger.kernel.org
+Description:
+ This attribute is used to set the gain of the biasing current
+ circuit of the Delta-Sigma modulator. The different BOOST
+ settings are applied to the entire modulator circuit, including
+ the voltage reference buffers.
+
+What: /sys/bus/iio/devices/iio:deviceX/boost_current_gain_available
+KernelVersion: 6.4
+Contact: linux-iio@vger.kernel.org
+Description:
+ Reading returns a list with the possible gain values for
+ the current biasing circuit of the Delta-Sigma modulator.
+
+What: /sys/bus/iio/devices/iio:deviceX/auto_zeroing_mux_enable
+KernelVersion: 6.4
+Contact: linux-iio@vger.kernel.org
+Description:
+ This attribute is used to enable the analog input multiplexer
+ auto-zeroing algorithm (the input multiplexer and the ADC
+ include an offset cancellation algorithm that cancels the offset
+ contribution of the ADC). When the offset cancellation algorithm
+ is enabled, ADC takes two conversions, one with the differential
+ input as VIN+/VIN-, one with VIN+/VIN- inverted. In this case the
+ conversion time is multiplied by two compared to the default
+ case where the algorithm is disabled. This technique allows the
+ cancellation of the ADC offset error and the achievement of
+ ultra-low offset without any digital calibration. The resulting
+ offset is the residue of the difference between the two
+ conversions, which is on the order of magnitude of the noise
+ floor. This offset is effectively canceled at every conversion,
+ so the residual offset error temperature drift is extremely low.
+ Write '1' to enable it, write '0' to disable it.
+
+What: /sys/bus/iio/devices/iio:deviceX/auto_zeroing_ref_enable
+KernelVersion: 6.4
+Contact: linux-iio@vger.kernel.org
+Description:
+ This attribute is used to enable the chopping algorithm for the
+ internal voltage reference buffer. This setting has no effect
+ when external voltage reference is selected.
+ Internal voltage reference buffer injects a certain quantity of
+ 1/f noise into the system that can be modulated with the
+ incoming input signals and can limit the SNR performance at
+ higher Oversampling Ratio values (over 256). To overcome this
+ limitation, the buffer includes an auto-zeroing algorithm that
+ greatly reduces (cancels out) the 1/f noise and cancels the
+ offset value of the reference buffer. As a result, the SNR of
+ the system is not affected by this 1/f noise component of the
+ reference buffer, even at maximum oversampling ratio values.
+ Write '1' to enable it, write '0' to disable it.
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-adc-pac1934 b/Documentation/ABI/testing/sysfs-bus-iio-adc-pac1934
new file mode 100644
index 000000000000..625b7f867847
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-iio-adc-pac1934
@@ -0,0 +1,9 @@
+What: /sys/bus/iio/devices/iio:deviceX/in_shunt_resistorY
+KernelVersion: 6.7
+Contact: linux-iio@vger.kernel.org
+Description:
+ The value of the shunt resistor may be known only at runtime
+ and set by a client application. This attribute allows to
+ set its value in micro-ohms. X is the IIO index of the device.
+ Y is the channel number. The value is used to calculate
+ current, power and accumulated energy.
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-chemical-sgp40 b/Documentation/ABI/testing/sysfs-bus-iio-chemical-sgp40
index 469a7c00fad4..a95547e874f1 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio-chemical-sgp40
+++ b/Documentation/ABI/testing/sysfs-bus-iio-chemical-sgp40
@@ -15,17 +15,3 @@ Description:
Set the relative humidity. This value is sent to the sensor for
humidity compensation.
Default value: 50000 (50 % relative humidity)
-
-What: /sys/bus/iio/devices/iio:deviceX/in_resistance_calibbias
-Date: August 2021
-KernelVersion: 5.15
-Contact: Andreas Klinger <ak@it-klinger.de>
-Description:
- Set the bias value for the resistance which is used for
- calculation of in_concentration_input as follows:
-
- x = (in_resistance_raw - in_resistance_calibbias) * 0.65
-
- in_concentration_input = 500 / (1 + e^x)
-
- Default value: 30000
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-cros-ec b/Documentation/ABI/testing/sysfs-bus-iio-cros-ec
index adf24c40126f..9e3926243797 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio-cros-ec
+++ b/Documentation/ABI/testing/sysfs-bus-iio-cros-ec
@@ -7,16 +7,6 @@ Description:
corresponding calibration offsets can be read from `*_calibbias`
entries.
-What: /sys/bus/iio/devices/iio:deviceX/location
-Date: July 2015
-KernelVersion: 4.7
-Contact: linux-iio@vger.kernel.org
-Description:
- This attribute returns a string with the physical location where
- the motion sensor is placed. For example, in a laptop a motion
- sensor can be located on the base or on the lid. Current valid
- values are 'base' and 'lid'.
-
What: /sys/bus/iio/devices/iio:deviceX/id
Date: September 2017
KernelVersion: 4.14
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-dac b/Documentation/ABI/testing/sysfs-bus-iio-dac
new file mode 100644
index 000000000000..810eaac5533c
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-iio-dac
@@ -0,0 +1,61 @@
+What: /sys/bus/iio/devices/iio:deviceX/out_currentY_toggle_en
+KernelVersion: 5.18
+Contact: linux-iio@vger.kernel.org
+Description:
+ Toggle enable. Write 1 to enable toggle or 0 to disable it. This
+ is useful when one wants to change the DAC output codes. For
+ autonomous toggling, the way it should be done is:
+
+ - disable toggle operation;
+ - change out_currentY_rawN, where N is the integer value of the symbol;
+ - enable toggle operation.
+
+What: /sys/bus/iio/devices/iio:deviceX/out_currentY_rawN
+KernelVersion: 5.18
+Contact: linux-iio@vger.kernel.org
+Description:
+ This attribute has the same meaning as out_currentY_raw. It is
+ specific to toggle enabled channels and refers to the DAC output
+ code in INPUT_N (_rawN), where N is the integer value of the symbol.
+ The same scale and offset as in out_currentY_raw applies.
+
+What: /sys/bus/iio/devices/iio:deviceX/out_currentY_symbol
+KernelVersion: 5.18
+Contact: linux-iio@vger.kernel.org
+Description:
+ Performs a SW switch to a predefined output symbol. This attribute
+ is specific to toggle enabled channels and allows switching between
+ multiple predefined symbols. Each symbol corresponds to a different
+ output, denoted as out_currentY_rawN, where N is the integer value
+ of the symbol. Writing an integer value N will select out_currentY_rawN.
+
+What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_toggle_en
+KernelVersion: 5.18
+Contact: linux-iio@vger.kernel.org
+Description:
+ Toggle enable. Write 1 to enable toggle or 0 to disable it. This
+ is useful when one wants to change the DAC output codes. For
+ autonomous toggling, the way it should be done is:
+
+ - disable toggle operation;
+ - change out_voltageY_rawN, where N is the integer value of the symbol;
+ - enable toggle operation.
+
+What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_rawN
+KernelVersion: 5.18
+Contact: linux-iio@vger.kernel.org
+Description:
+ This attribute has the same meaning as out_currentY_raw. It is
+ specific to toggle enabled channels and refers to the DAC output
+ code in INPUT_N (_rawN), where N is the integer value of the symbol.
+ The same scale and offset as in out_currentY_raw applies.
+
+What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_symbol
+KernelVersion: 5.18
+Contact: linux-iio@vger.kernel.org
+Description:
+ Performs a SW switch to a predefined output symbol. This attribute
+ is specific to toggle enabled channels and allows switching between
+ multiple predefined symbols. Each symbol corresponds to a different
+ output, denoted as out_voltageY_rawN, where N is the integer value
+ of the symbol. Writing an integer value N will select out_voltageY_rawN.
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-dac-ltc2688 b/Documentation/ABI/testing/sysfs-bus-iio-dac-ltc2688
index 1c35971277ba..ae95a5477382 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio-dac-ltc2688
+++ b/Documentation/ABI/testing/sysfs-bus-iio-dac-ltc2688
@@ -53,34 +53,3 @@ KernelVersion: 5.18
Contact: linux-iio@vger.kernel.org
Description:
Returns the available values for the dither phase.
-
-What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_toggle_en
-KernelVersion: 5.18
-Contact: linux-iio@vger.kernel.org
-Description:
- Toggle enable. Write 1 to enable toggle or 0 to disable it. This is
- useful when one wants to change the DAC output codes. The way it should
- be done is:
-
- - disable toggle operation;
- - change out_voltageY_raw0 and out_voltageY_raw1;
- - enable toggle operation.
-
-What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_raw0
-What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_raw1
-KernelVersion: 5.18
-Contact: linux-iio@vger.kernel.org
-Description:
- It has the same meaning as out_voltageY_raw. This attribute is
- specific to toggle enabled channels and refers to the DAC output
- code in INPUT_A (_raw0) and INPUT_B (_raw1). The same scale and offset
- as in out_voltageY_raw applies.
-
-What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_symbol
-KernelVersion: 5.18
-Contact: linux-iio@vger.kernel.org
-Description:
- Performs a SW toggle. This attribute is specific to toggle
- enabled channels and allows to toggle between out_voltageY_raw0
- and out_voltageY_raw1 through software. Writing 0 will select
- out_voltageY_raw0 while 1 selects out_voltageY_raw1.
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-filter-admv8818 b/Documentation/ABI/testing/sysfs-bus-iio-filter-admv8818
index f6c035752639..c431f0a13cf5 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio-filter-admv8818
+++ b/Documentation/ABI/testing/sysfs-bus-iio-filter-admv8818
@@ -3,10 +3,12 @@ KernelVersion:
Contact: linux-iio@vger.kernel.org
Description:
Reading this returns the valid values that can be written to the
- on_altvoltage0_mode attribute:
+ filter_mode attribute:
- auto -> Adjust bandpass filter to track changes in input clock rate.
- manual -> disable/unregister the clock rate notifier / input clock tracking.
+ - bypass -> bypass low pass filter, high pass filter and disable/unregister
+ the clock rate notifier
What: /sys/bus/iio/devices/iio:deviceX/filter_mode
KernelVersion:
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-frequency-admv1013 b/Documentation/ABI/testing/sysfs-bus-iio-frequency-admv1013
index de1e323e5d47..9cf8cd0dd2df 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio-frequency-admv1013
+++ b/Documentation/ABI/testing/sysfs-bus-iio-frequency-admv1013
@@ -1,10 +1,10 @@
-What: /sys/bus/iio/devices/iio:deviceX/in_altvoltage0-1_i_calibphase
+What: /sys/bus/iio/devices/iio:deviceX/in_altvoltage0-altvoltage1_i_calibphase
KernelVersion:
Contact: linux-iio@vger.kernel.org
Description:
Read/write unscaled value for the Local Oscillatior path quadrature I phase shift.
-What: /sys/bus/iio/devices/iio:deviceX/in_altvoltage0-1_q_calibphase
+What: /sys/bus/iio/devices/iio:deviceX/in_altvoltage0-altvoltage1_q_calibphase
KernelVersion:
Contact: linux-iio@vger.kernel.org
Description:
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-ina2xx-adc b/Documentation/ABI/testing/sysfs-bus-iio-ina2xx-adc
index 8916f7ec6507..8dbca113112d 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio-ina2xx-adc
+++ b/Documentation/ABI/testing/sysfs-bus-iio-ina2xx-adc
@@ -13,12 +13,3 @@ Description:
available for reading data. However, samples can be occasionally skipped
or repeated, depending on the beat between the capture and conversion
rates.
-
-What: /sys/bus/iio/devices/iio:deviceX/in_shunt_resistor
-Date: December 2015
-KernelVersion: 4.4
-Contact: linux-iio@vger.kernel.org
-Description:
- The value of the shunt resistor may be known only at runtime fom an
- eeprom content read by a client application. This attribute allows to
- set its value in ohms.
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-inv_icm42600 b/Documentation/ABI/testing/sysfs-bus-iio-inv_icm42600
new file mode 100644
index 000000000000..7eeacfb7650d
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-iio-inv_icm42600
@@ -0,0 +1,18 @@
+What: /sys/bus/iio/devices/iio:deviceX/in_accel_power_mode
+KernelVersion: 6.11
+Contact: linux-iio@vger.kernel.org
+Description:
+ Accelerometer power mode. Setting this attribute will set the
+ requested power mode to use if the ODR support it. If ODR
+ support only 1 mode, power mode will be enforced.
+ Reading this attribute will return the current accelerometer
+ power mode if the sensor is on, or the requested value if the
+ sensor is off. The value between real and requested value can
+ be different for ODR supporting only 1 mode.
+
+What: /sys/bus/iio/devices/iio:deviceX/in_accel_power_mode_available
+KernelVersion: 6.11
+Contact: linux-iio@vger.kernel.org
+Description:
+ List of available accelerometer power modes that can be set in
+ in_accel_power_mode attribute.
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-resolver-ad2s1210 b/Documentation/ABI/testing/sysfs-bus-iio-resolver-ad2s1210
new file mode 100644
index 000000000000..f92c79342b93
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-iio-resolver-ad2s1210
@@ -0,0 +1,27 @@
+What: /sys/bus/iio/devices/iio:deviceX/events/in_altvoltage0_mag_rising_reset_max
+KernelVersion: 6.7
+Contact: linux-iio@vger.kernel.org
+Description:
+ Reading returns the current Degradation of Signal Reset Maximum
+ Threshold value in millivolts. Writing sets the value.
+
+What: /sys/bus/iio/devices/iio:deviceX/events/in_altvoltage0_mag_rising_reset_max_available
+KernelVersion: 6.7
+Contact: linux-iio@vger.kernel.org
+Description:
+ Reading returns the allowable voltage range for
+ in_altvoltage0_mag_rising_reset_max.
+
+What: /sys/bus/iio/devices/iio:deviceX/events/in_altvoltage0_mag_rising_reset_min
+KernelVersion: 6.7
+Contact: linux-iio@vger.kernel.org
+Description:
+ Reading returns the current Degradation of Signal Reset Minimum
+ Threshold value in millivolts. Writing sets the value.
+
+What: /sys/bus/iio/devices/iio:deviceX/events/in_altvoltage0_mag_rising_reset_min_available
+KernelVersion: 6.7
+Contact: linux-iio@vger.kernel.org
+Description:
+ Reading returns the allowable voltage range for
+ in_altvoltage0_mag_rising_reset_min.
diff --git a/Documentation/ABI/testing/sysfs-bus-nfit b/Documentation/ABI/testing/sysfs-bus-nfit
index e7282d184a74..ed483a11c58c 100644
--- a/Documentation/ABI/testing/sysfs-bus-nfit
+++ b/Documentation/ABI/testing/sysfs-bus-nfit
@@ -121,7 +121,7 @@ KernelVersion: v4.7
Contact: nvdimm@lists.linux.dev
Description:
(RO) ACPI specification 6.2 section 5.2.25.9, defines an
- identifier for an NVDIMM, which refelects the id attribute.
+ identifier for an NVDIMM, which reflects the id attribute.
What: /sys/bus/nd/devices/nmemX/nfit/subsystem_vendor
diff --git a/Documentation/ABI/testing/sysfs-bus-nvdimm b/Documentation/ABI/testing/sysfs-bus-nvdimm
index de8c5a59c77f..64eb8f4c6a41 100644
--- a/Documentation/ABI/testing/sysfs-bus-nvdimm
+++ b/Documentation/ABI/testing/sysfs-bus-nvdimm
@@ -18,10 +18,12 @@ Description: (RO) Attribute group to describe the magic bits
Each attribute under this group defines a bit range of the
perf_event_attr.config. Supported attribute is listed
below::
+
event = "config:0-4" - event ID
For example::
- ctl_res_cnt = "event=0x1"
+
+ ctl_res_cnt = "event=0x1"
What: /sys/bus/event_source/devices/nmemX/events
Date: February 2022
diff --git a/Documentation/ABI/testing/sysfs-bus-optee-devices b/Documentation/ABI/testing/sysfs-bus-optee-devices
index 0f58701367b6..af31e5a22d89 100644
--- a/Documentation/ABI/testing/sysfs-bus-optee-devices
+++ b/Documentation/ABI/testing/sysfs-bus-optee-devices
@@ -6,3 +6,12 @@ Description:
OP-TEE bus provides reference to registered drivers under this directory. The <uuid>
matches Trusted Application (TA) driver and corresponding TA in secure OS. Drivers
are free to create needed API under optee-ta-<uuid> directory.
+
+What: /sys/bus/tee/devices/optee-ta-<uuid>/need_supplicant
+Date: November 2023
+KernelVersion: 6.7
+Contact: op-tee@lists.trustedfirmware.org
+Description:
+ Allows to distinguish whether an OP-TEE based TA/device requires user-space
+ tee-supplicant to function properly or not. This attribute will be present for
+ devices which depend on tee-supplicant to be running.
diff --git a/Documentation/ABI/testing/sysfs-bus-papr-pmem b/Documentation/ABI/testing/sysfs-bus-papr-pmem
index 4ac0673901e7..34ee8c59ab25 100644
--- a/Documentation/ABI/testing/sysfs-bus-papr-pmem
+++ b/Documentation/ABI/testing/sysfs-bus-papr-pmem
@@ -8,7 +8,7 @@ Description:
more bits set in the dimm-health-bitmap retrieved in
response to H_SCM_HEALTH hcall. The details of the bit
flags returned in response to this hcall is available
- at 'Documentation/powerpc/papr_hcalls.rst' . Below are
+ at 'Documentation/arch/powerpc/papr_hcalls.rst' . Below are
the flags reported in this sysfs file:
* "not_armed"
@@ -30,7 +30,7 @@ Description:
Indicating that contents of the
NVDIMM have been scrubbed.
* "locked"
- Indicating that NVDIMM contents cant
+ Indicating that NVDIMM contents can't
be modified until next power cycle.
What: /sys/bus/nd/devices/nmemX/papr/perf_stats
diff --git a/Documentation/ABI/testing/sysfs-bus-pci b/Documentation/ABI/testing/sysfs-bus-pci
index ecf47559f495..b767db2c52cb 100644
--- a/Documentation/ABI/testing/sysfs-bus-pci
+++ b/Documentation/ABI/testing/sysfs-bus-pci
@@ -163,6 +163,17 @@ Description:
will be present in sysfs. Writing 1 to this file
will perform reset.
+What: /sys/bus/pci/devices/.../reset_subordinate
+Date: October 2024
+Contact: linux-pci@vger.kernel.org
+Description:
+ This is visible only for bridge devices. If you want to reset
+ all devices attached through the subordinate bus of a specific
+ bridge device, writing 1 to this will try to do it. This will
+ affect all devices attached to the system through this bridge
+ similiar to writing 1 to their individual "reset" file, so use
+ with caution.
+
What: /sys/bus/pci/devices/.../vpd
Date: February 2008
Contact: Ben Hutchings <bwh@kernel.org>
@@ -500,3 +511,194 @@ Description:
console drivers from the device. Raw users of pci-sysfs
resourceN attributes must be terminated prior to resizing.
Success of the resizing operation is not guaranteed.
+
+What: /sys/bus/pci/devices/.../leds/*:enclosure:*/brightness
+What: /sys/class/leds/*:enclosure:*/brightness
+Date: August 2024
+KernelVersion: 6.12
+Description:
+ LED indications on PCIe storage enclosures which are controlled
+ through the NPEM interface (Native PCIe Enclosure Management,
+ PCIe r6.1 sec 6.28) are accessible as led class devices, both
+ below /sys/class/leds and below NPEM-capable PCI devices.
+
+ Although these led class devices could be manipulated manually,
+ in practice they are typically manipulated automatically by an
+ application such as ledmon(8).
+
+ The name of a led class device is as follows:
+ <bdf>:enclosure:<indication>
+ where:
+
+ - <bdf> is the domain, bus, device and function number
+ (e.g. 10000:02:05.0)
+ - <indication> is a short description of the LED indication
+
+ Valid indications per PCIe r6.1 table 6-27 are:
+
+ - ok (drive is functioning normally)
+ - locate (drive is being identified by an admin)
+ - fail (drive is not functioning properly)
+ - rebuild (drive is part of an array that is rebuilding)
+ - pfa (drive is predicted to fail soon)
+ - hotspare (drive is marked to be used as a replacement)
+ - ica (drive is part of an array that is degraded)
+ - ifa (drive is part of an array that is failed)
+ - idt (drive is not the right type for the connector)
+ - disabled (drive is disabled, removal is safe)
+ - specific0 to specific7 (enclosure-specific indications)
+
+ Broadly, the indications fall into one of these categories:
+
+ - to signify drive state (ok, locate, fail, idt, disabled)
+ - to signify drive role or state in a software RAID array
+ (rebuild, pfa, hotspare, ica, ifa)
+ - to signify any other role or state (specific0 to specific7)
+
+ Mandatory indications per PCIe r6.1 sec 7.9.19.2 comprise:
+ ok, locate, fail, rebuild. All others are optional.
+ A led class device is only visible if the corresponding
+ indication is supported by the device.
+
+ To manipulate the indications, write 0 (LED_OFF) or 1 (LED_ON)
+ to the "brightness" file. Note that manipulating an indication
+ may implicitly manipulate other indications at the vendor's
+ discretion. E.g. when the user lights up the "ok" indication,
+ the vendor may choose to automatically turn off the "fail"
+ indication. The current state of an indication can be
+ retrieved by reading its "brightness" file.
+
+ The PCIe Base Specification allows vendors leeway to choose
+ different colors or blinking patterns for the indications,
+ but they typically follow the IBPI standard. E.g. the "locate"
+ indication is usually presented as one or two LEDs blinking at
+ 4 Hz frequency:
+ https://en.wikipedia.org/wiki/International_Blinking_Pattern_Interpretation
+
+ PCI Firmware Specification r3.3 sec 4.7 defines a DSM interface
+ to facilitate shared access by operating system and platform
+ firmware to a device's NPEM registers. The kernel will use
+ this DSM interface where available, instead of accessing NPEM
+ registers directly. The DSM interface does not support the
+ enclosure-specific indications "specific0" to "specific7",
+ hence the corresponding led class devices are unavailable if
+ the DSM interface is used.
+
+What: /sys/bus/pci/devices/.../doe_features
+Date: March 2025
+Contact: Linux PCI developers <linux-pci@vger.kernel.org>
+Description:
+ This directory contains a list of the supported Data Object
+ Exchange (DOE) features. The features are the file name.
+ The contents of each file is the raw Vendor ID and data
+ object feature values.
+
+ The value comes from the device and specifies the vendor and
+ data object type supported. The lower (RHS of the colon) is
+ the data object type in hex. The upper (LHS of the colon)
+ is the vendor ID.
+
+ As all DOE devices must support the DOE discovery feature,
+ if DOE is supported you will at least see the doe_discovery
+ file, with this contents:
+
+ # cat doe_features/doe_discovery
+ 0001:00
+
+ If the device supports other features you will see other
+ files as well. For example if CMA/SPDM and secure CMA/SPDM
+ are supported the doe_features directory will look like
+ this:
+
+ # ls doe_features
+ 0001:01 0001:02 doe_discovery
+
+What: /sys/bus/pci/devices/.../serial_number
+Date: December 2025
+Contact: Matthew Wood <thepacketgeek@gmail.com>
+Description:
+ This is visible only for PCI devices that support the serial
+ number extended capability. The file is read only and due to
+ the possible sensitivity of accessible serial numbers, admin
+ only.
+
+What: /sys/bus/pci/devices/.../tsm/
+Contact: linux-coco@lists.linux.dev
+Description:
+ This directory only appears if a physical device function
+ supports authentication (PCIe CMA-SPDM), interface security
+ (PCIe TDISP), and is accepted for secure operation by the
+ platform TSM driver. This attribute directory appears
+ dynamically after the platform TSM driver loads. So, only after
+ the /sys/class/tsm/tsm0 device arrives can tools assume that
+ devices without a tsm/ attribute directory will never have one;
+ before that, the security capabilities of the device relative to
+ the platform TSM are unknown. See
+ Documentation/ABI/testing/sysfs-class-tsm.
+
+What: /sys/bus/pci/devices/.../tsm/connect
+Contact: linux-coco@lists.linux.dev
+Description:
+ (RW) Write the name of a TSM (TEE Security Manager) device from
+ /sys/class/tsm to this file to establish a connection with the
+ device. This typically includes an SPDM (DMTF Security
+ Protocols and Data Models) session over PCIe DOE (Data Object
+ Exchange) and may also include PCIe IDE (Integrity and Data
+ Encryption) establishment. Reads from this attribute return the
+ name of the connected TSM or the empty string if not
+ connected. A TSM device signals its readiness to accept PCI
+ connection via a KOBJ_CHANGE event.
+
+What: /sys/bus/pci/devices/.../tsm/disconnect
+Contact: linux-coco@lists.linux.dev
+Description:
+ (WO) Write the name of the TSM device that was specified
+ to 'connect' to teardown the connection.
+
+What: /sys/bus/pci/devices/.../tsm/dsm
+Contact: linux-coco@lists.linux.dev
+Description: (RO) Return PCI device name of this device's DSM (Device
+ Security Manager). When a device is in the connected state it
+ indicates that the platform TSM (TEE Security Manager) has made
+ a secure-session connection with a device's DSM. A DSM is always
+ physical function 0 and when the device supports TDISP (TEE
+ Device Interface Security Protocol) its managed functions also
+ populate this tsm/dsm attribute. The managed functions of a DSM
+ are SR-IOV (Single Root I/O Virtualization) virtual functions,
+ non-zero functions of a multi-function device, or downstream
+ endpoints depending on whether the DSM is an SR-IOV physical
+ function, function0 of a multi-function device, or an upstream
+ PCIe switch port. This is a "link" TSM attribute, see
+ Documentation/ABI/testing/sysfs-class-tsm.
+
+What: /sys/bus/pci/devices/.../tsm/bound
+Contact: linux-coco@lists.linux.dev
+Description: (RO) Return the device name of the TSM when the device is in a
+ TDISP (TEE Device Interface Security Protocol) operational state
+ (LOCKED, RUN, or ERROR, not UNLOCKED). Bound devices consume
+ platform TSM resources and depend on the device's configuration
+ (e.g. BME (Bus Master Enable) and MSE (Memory Space Enable)
+ among other settings) to remain stable for the duration of the
+ bound state. This attribute is only visible for devices that
+ support TDISP operation, and it is only populated after
+ successful connect and TSM bind. The TSM bind operation is
+ initiated by VFIO/IOMMUFD. This is a "link" TSM attribute, see
+ Documentation/ABI/testing/sysfs-class-tsm.
+
+What: /sys/bus/pci/devices/.../authenticated
+Contact: linux-pci@vger.kernel.org
+Description:
+ When the device's tsm/ directory is present device
+ authentication (PCIe CMA-SPDM) and link encryption (PCIe IDE)
+ are handled by the platform TSM (TEE Security Manager). When the
+ tsm/ directory is not present this attribute reflects only the
+ native CMA-SPDM authentication state with the kernel's
+ certificate store.
+
+ If the attribute is not present, it indicates that
+ authentication is unsupported by the device, or the TSM has no
+ available authentication methods for the device.
+
+ When present and the tsm/ attribute directory is present, the
+ authenticated attribute is an alias for the device 'connect'
+ state. See the 'tsm/connect' attribute for more details.
diff --git a/Documentation/ABI/testing/sysfs-bus-pci-devices-aer b/Documentation/ABI/testing/sysfs-bus-pci-devices-aer
new file mode 100644
index 000000000000..5ed284523956
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-pci-devices-aer
@@ -0,0 +1,163 @@
+PCIe Device AER statistics
+--------------------------
+
+These attributes show up under all the devices that are AER capable. These
+statistical counters indicate the errors "as seen/reported by the device".
+Note that this may mean that if an endpoint is causing problems, the AER
+counters may increment at its link partner (e.g. root port) because the
+errors may be "seen" / reported by the link partner and not the
+problematic endpoint itself (which may report all counters as 0 as it never
+saw any problems).
+
+What: /sys/bus/pci/devices/<dev>/aer_dev_correctable
+Date: July 2018
+KernelVersion: 4.19.0
+Contact: linux-pci@vger.kernel.org, rajatja@google.com
+Description: List of correctable errors seen and reported by this
+ PCI device using ERR_COR. Note that since multiple errors may
+ be reported using a single ERR_COR message, thus
+ TOTAL_ERR_COR at the end of the file may not match the actual
+ total of all the errors in the file. Sample output::
+
+ localhost /sys/devices/pci0000:00/0000:00:1c.0 # cat aer_dev_correctable
+ Receiver Error 2
+ Bad TLP 0
+ Bad DLLP 0
+ RELAY_NUM Rollover 0
+ Replay Timer Timeout 0
+ Advisory Non-Fatal 0
+ Corrected Internal Error 0
+ Header Log Overflow 0
+ TOTAL_ERR_COR 2
+
+What: /sys/bus/pci/devices/<dev>/aer_dev_fatal
+Date: July 2018
+KernelVersion: 4.19.0
+Contact: linux-pci@vger.kernel.org, rajatja@google.com
+Description: List of uncorrectable fatal errors seen and reported by this
+ PCI device using ERR_FATAL. Note that since multiple errors may
+ be reported using a single ERR_FATAL message, thus
+ TOTAL_ERR_FATAL at the end of the file may not match the actual
+ total of all the errors in the file. Sample output::
+
+ localhost /sys/devices/pci0000:00/0000:00:1c.0 # cat aer_dev_fatal
+ Undefined 0
+ Data Link Protocol 0
+ Surprise Down Error 0
+ Poisoned TLP 0
+ Flow Control Protocol 0
+ Completion Timeout 0
+ Completer Abort 0
+ Unexpected Completion 0
+ Receiver Overflow 0
+ Malformed TLP 0
+ ECRC 0
+ Unsupported Request 0
+ ACS Violation 0
+ Uncorrectable Internal Error 0
+ MC Blocked TLP 0
+ AtomicOp Egress Blocked 0
+ TLP Prefix Blocked Error 0
+ TOTAL_ERR_FATAL 0
+
+What: /sys/bus/pci/devices/<dev>/aer_dev_nonfatal
+Date: July 2018
+KernelVersion: 4.19.0
+Contact: linux-pci@vger.kernel.org, rajatja@google.com
+Description: List of uncorrectable nonfatal errors seen and reported by this
+ PCI device using ERR_NONFATAL. Note that since multiple errors
+ may be reported using a single ERR_FATAL message, thus
+ TOTAL_ERR_NONFATAL at the end of the file may not match the
+ actual total of all the errors in the file. Sample output::
+
+ localhost /sys/devices/pci0000:00/0000:00:1c.0 # cat aer_dev_nonfatal
+ Undefined 0
+ Data Link Protocol 0
+ Surprise Down Error 0
+ Poisoned TLP 0
+ Flow Control Protocol 0
+ Completion Timeout 0
+ Completer Abort 0
+ Unexpected Completion 0
+ Receiver Overflow 0
+ Malformed TLP 0
+ ECRC 0
+ Unsupported Request 0
+ ACS Violation 0
+ Uncorrectable Internal Error 0
+ MC Blocked TLP 0
+ AtomicOp Egress Blocked 0
+ TLP Prefix Blocked Error 0
+ TOTAL_ERR_NONFATAL 0
+
+PCIe Rootport AER statistics
+----------------------------
+
+These attributes show up under only the rootports (or root complex event
+collectors) that are AER capable. These indicate the number of error messages as
+"reported to" the rootport. Please note that the rootports also transmit
+(internally) the ERR_* messages for errors seen by the internal rootport PCI
+device, so these counters include them and are thus cumulative of all the error
+messages on the PCI hierarchy originating at that root port.
+
+What: /sys/bus/pci/devices/<dev>/aer_rootport_total_err_cor
+Date: July 2018
+KernelVersion: 4.19.0
+Contact: linux-pci@vger.kernel.org, rajatja@google.com
+Description: Total number of ERR_COR messages reported to rootport.
+
+What: /sys/bus/pci/devices/<dev>/aer_rootport_total_err_fatal
+Date: July 2018
+KernelVersion: 4.19.0
+Contact: linux-pci@vger.kernel.org, rajatja@google.com
+Description: Total number of ERR_FATAL messages reported to rootport.
+
+What: /sys/bus/pci/devices/<dev>/aer_rootport_total_err_nonfatal
+Date: July 2018
+KernelVersion: 4.19.0
+Contact: linux-pci@vger.kernel.org, rajatja@google.com
+Description: Total number of ERR_NONFATAL messages reported to rootport.
+
+PCIe AER ratelimits
+-------------------
+
+These attributes show up under all the devices that are AER capable.
+They represent configurable ratelimits of logs per error type.
+
+See Documentation/PCI/pcieaer-howto.rst for more info on ratelimits.
+
+What: /sys/bus/pci/devices/<dev>/aer/correctable_ratelimit_interval_ms
+Date: May 2025
+KernelVersion: 6.16.0
+Contact: linux-pci@vger.kernel.org
+Description: Writing 0 disables AER correctable error log ratelimiting.
+ Writing a positive value sets the ratelimit interval in ms.
+ Default is DEFAULT_RATELIMIT_INTERVAL (5000 ms).
+
+What: /sys/bus/pci/devices/<dev>/aer/correctable_ratelimit_burst
+Date: May 2025
+KernelVersion: 6.16.0
+Contact: linux-pci@vger.kernel.org
+Description: Ratelimit burst for correctable error logs. Writing a value
+ changes the number of errors (burst) allowed per interval
+ before ratelimiting. Reading gets the current ratelimit
+ burst. Default is DEFAULT_RATELIMIT_BURST (10).
+
+What: /sys/bus/pci/devices/<dev>/aer/nonfatal_ratelimit_interval_ms
+Date: May 2025
+KernelVersion: 6.16.0
+Contact: linux-pci@vger.kernel.org
+Description: Writing 0 disables AER non-fatal uncorrectable error log
+ ratelimiting. Writing a positive value sets the ratelimit
+ interval in ms. Default is DEFAULT_RATELIMIT_INTERVAL
+ (5000 ms).
+
+What: /sys/bus/pci/devices/<dev>/aer/nonfatal_ratelimit_burst
+Date: May 2025
+KernelVersion: 6.16.0
+Contact: linux-pci@vger.kernel.org
+Description: Ratelimit burst for non-fatal uncorrectable error logs.
+ Writing a value changes the number of errors (burst)
+ allowed per interval before ratelimiting. Reading gets the
+ current ratelimit burst. Default is DEFAULT_RATELIMIT_BURST
+ (10).
diff --git a/Documentation/ABI/testing/sysfs-bus-pci-devices-aer_stats b/Documentation/ABI/testing/sysfs-bus-pci-devices-aer_stats
deleted file mode 100644
index 860db53037a5..000000000000
--- a/Documentation/ABI/testing/sysfs-bus-pci-devices-aer_stats
+++ /dev/null
@@ -1,119 +0,0 @@
-PCIe Device AER statistics
---------------------------
-
-These attributes show up under all the devices that are AER capable. These
-statistical counters indicate the errors "as seen/reported by the device".
-Note that this may mean that if an endpoint is causing problems, the AER
-counters may increment at its link partner (e.g. root port) because the
-errors may be "seen" / reported by the link partner and not the
-problematic endpoint itself (which may report all counters as 0 as it never
-saw any problems).
-
-What: /sys/bus/pci/devices/<dev>/aer_dev_correctable
-Date: July 2018
-KernelVersion: 4.19.0
-Contact: linux-pci@vger.kernel.org, rajatja@google.com
-Description: List of correctable errors seen and reported by this
- PCI device using ERR_COR. Note that since multiple errors may
- be reported using a single ERR_COR message, thus
- TOTAL_ERR_COR at the end of the file may not match the actual
- total of all the errors in the file. Sample output::
-
- localhost /sys/devices/pci0000:00/0000:00:1c.0 # cat aer_dev_correctable
- Receiver Error 2
- Bad TLP 0
- Bad DLLP 0
- RELAY_NUM Rollover 0
- Replay Timer Timeout 0
- Advisory Non-Fatal 0
- Corrected Internal Error 0
- Header Log Overflow 0
- TOTAL_ERR_COR 2
-
-What: /sys/bus/pci/devices/<dev>/aer_dev_fatal
-Date: July 2018
-KernelVersion: 4.19.0
-Contact: linux-pci@vger.kernel.org, rajatja@google.com
-Description: List of uncorrectable fatal errors seen and reported by this
- PCI device using ERR_FATAL. Note that since multiple errors may
- be reported using a single ERR_FATAL message, thus
- TOTAL_ERR_FATAL at the end of the file may not match the actual
- total of all the errors in the file. Sample output::
-
- localhost /sys/devices/pci0000:00/0000:00:1c.0 # cat aer_dev_fatal
- Undefined 0
- Data Link Protocol 0
- Surprise Down Error 0
- Poisoned TLP 0
- Flow Control Protocol 0
- Completion Timeout 0
- Completer Abort 0
- Unexpected Completion 0
- Receiver Overflow 0
- Malformed TLP 0
- ECRC 0
- Unsupported Request 0
- ACS Violation 0
- Uncorrectable Internal Error 0
- MC Blocked TLP 0
- AtomicOp Egress Blocked 0
- TLP Prefix Blocked Error 0
- TOTAL_ERR_FATAL 0
-
-What: /sys/bus/pci/devices/<dev>/aer_dev_nonfatal
-Date: July 2018
-KernelVersion: 4.19.0
-Contact: linux-pci@vger.kernel.org, rajatja@google.com
-Description: List of uncorrectable nonfatal errors seen and reported by this
- PCI device using ERR_NONFATAL. Note that since multiple errors
- may be reported using a single ERR_FATAL message, thus
- TOTAL_ERR_NONFATAL at the end of the file may not match the
- actual total of all the errors in the file. Sample output::
-
- localhost /sys/devices/pci0000:00/0000:00:1c.0 # cat aer_dev_nonfatal
- Undefined 0
- Data Link Protocol 0
- Surprise Down Error 0
- Poisoned TLP 0
- Flow Control Protocol 0
- Completion Timeout 0
- Completer Abort 0
- Unexpected Completion 0
- Receiver Overflow 0
- Malformed TLP 0
- ECRC 0
- Unsupported Request 0
- ACS Violation 0
- Uncorrectable Internal Error 0
- MC Blocked TLP 0
- AtomicOp Egress Blocked 0
- TLP Prefix Blocked Error 0
- TOTAL_ERR_NONFATAL 0
-
-PCIe Rootport AER statistics
-----------------------------
-
-These attributes show up under only the rootports (or root complex event
-collectors) that are AER capable. These indicate the number of error messages as
-"reported to" the rootport. Please note that the rootports also transmit
-(internally) the ERR_* messages for errors seen by the internal rootport PCI
-device, so these counters include them and are thus cumulative of all the error
-messages on the PCI hierarchy originating at that root port.
-
-What: /sys/bus/pci/devices/<dev>/aer_stats/aer_rootport_total_err_cor
-Date: July 2018
-KernelVersion: 4.19.0
-Contact: linux-pci@vger.kernel.org, rajatja@google.com
-Description: Total number of ERR_COR messages reported to rootport.
-
-What: /sys/bus/pci/devices/<dev>/aer_stats/aer_rootport_total_err_fatal
-Date: July 2018
-KernelVersion: 4.19.0
-Contact: linux-pci@vger.kernel.org, rajatja@google.com
-Description: Total number of ERR_FATAL messages reported to rootport.
-
-What: /sys/bus/pci/devices/<dev>/aer_stats/aer_rootport_total_err_nonfatal
-Date: July 2018
-KernelVersion: 4.19.0
-Contact: linux-pci@vger.kernel.org, rajatja@google.com
-Description: Total number of ERR_NONFATAL messages reported to rootport.
diff --git a/Documentation/ABI/testing/sysfs-bus-pci-devices-avs b/Documentation/ABI/testing/sysfs-bus-pci-devices-avs
new file mode 100644
index 000000000000..ebff3fa12055
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-pci-devices-avs
@@ -0,0 +1,8 @@
+What: /sys/devices/pci0000:00/<dev>/avs/fw_version
+Date: February 2024
+Contact: Cezary Rojewski <cezary.rojewski@intel.com>
+Description:
+ Version of AudioDSP firmware ASoC avs driver is communicating
+ with.
+
+ Format: %d.%d.%d.%d, type:major:minor:build.
diff --git a/Documentation/ABI/testing/sysfs-bus-pci-drivers-xhci_hcd b/Documentation/ABI/testing/sysfs-bus-pci-drivers-xhci_hcd
index 5a775b8f6543..fc82aa4e54b0 100644
--- a/Documentation/ABI/testing/sysfs-bus-pci-drivers-xhci_hcd
+++ b/Documentation/ABI/testing/sysfs-bus-pci-drivers-xhci_hcd
@@ -75,3 +75,13 @@ Description:
The default value is 1 (GNU Remote Debug command).
Other permissible value is 0 which is for vendor defined debug
target.
+
+What: /sys/bus/pci/drivers/xhci_hcd/.../dbc_poll_interval_ms
+Date: February 2024
+Contact: Mathias Nyman <mathias.nyman@linux.intel.com>
+Description:
+ This attribute adjust the polling interval used to check for
+ DbC events. Unit is milliseconds. Accepted values range from 0
+ up to 5000. The default value is 64 ms.
+ This polling interval is used while DbC is enabled but has no
+ active data transfers.
diff --git a/Documentation/ABI/testing/sysfs-bus-platform-drivers-amd_x3d_vcache b/Documentation/ABI/testing/sysfs-bus-platform-drivers-amd_x3d_vcache
new file mode 100644
index 000000000000..ac3431736f5c
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-platform-drivers-amd_x3d_vcache
@@ -0,0 +1,12 @@
+What: /sys/bus/platform/drivers/amd_x3d_vcache/AMDI0101:00/amd_x3d_mode
+Date: November 2024
+KernelVersion: 6.13
+Contact: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
+Description: (RW) AMD 3D V-Cache optimizer allows users to switch CPU core
+ rankings dynamically.
+
+ This file switches between these two modes:
+ - "frequency" cores within the faster CCD are prioritized before
+ those in the slower CCD.
+ - "cache" cores within the larger L3 CCD are prioritized before
+ those in the smaller L3 CCD.
diff --git a/Documentation/ABI/testing/sysfs-bus-platform-onboard-usb-dev b/Documentation/ABI/testing/sysfs-bus-platform-onboard-usb-dev
new file mode 100644
index 000000000000..b06a48c3c85a
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-platform-onboard-usb-dev
@@ -0,0 +1,9 @@
+What: /sys/bus/platform/devices/<dev>/always_powered_in_suspend
+Date: June 2022
+KernelVersion: 5.20
+Contact: Matthias Kaehlcke <matthias@kaehlcke.net>
+ linux-usb@vger.kernel.org
+Description:
+ (RW) Controls whether the USB hub remains always powered
+ during system suspend or not. This attribute is not
+ available for non-hub devices.
diff --git a/Documentation/ABI/testing/sysfs-bus-platform-onboard-usb-hub b/Documentation/ABI/testing/sysfs-bus-platform-onboard-usb-hub
deleted file mode 100644
index 42deb0552065..000000000000
--- a/Documentation/ABI/testing/sysfs-bus-platform-onboard-usb-hub
+++ /dev/null
@@ -1,8 +0,0 @@
-What: /sys/bus/platform/devices/<dev>/always_powered_in_suspend
-Date: June 2022
-KernelVersion: 5.20
-Contact: Matthias Kaehlcke <matthias@kaehlcke.net>
- linux-usb@vger.kernel.org
-Description:
- (RW) Controls whether the USB hub remains always powered
- during system suspend or not. \ No newline at end of file
diff --git a/Documentation/ABI/testing/sysfs-bus-spi-devices-spi-nor b/Documentation/ABI/testing/sysfs-bus-spi-devices-spi-nor
index c800621eff95..9ed5582ddea2 100644
--- a/Documentation/ABI/testing/sysfs-bus-spi-devices-spi-nor
+++ b/Documentation/ABI/testing/sysfs-bus-spi-devices-spi-nor
@@ -25,6 +25,9 @@ KernelVersion: 5.14
Contact: linux-mtd@lists.infradead.org
Description: (RO) Part name of the SPI NOR flash.
+ The attribute is optional. User space should not rely on
+ it to be present or even correct. Instead, user space
+ should read the jedec_id attribute.
What: /sys/bus/spi/devices/.../spi-nor/sfdp
Date: April 2021
diff --git a/Documentation/ABI/testing/sysfs-bus-thunderbolt b/Documentation/ABI/testing/sysfs-bus-thunderbolt
index 76ab3e1fe374..221b6c75ed93 100644
--- a/Documentation/ABI/testing/sysfs-bus-thunderbolt
+++ b/Documentation/ABI/testing/sysfs-bus-thunderbolt
@@ -1,7 +1,7 @@
What: /sys/bus/thunderbolt/devices/.../domainX/boot_acl
Date: Jun 2018
KernelVersion: 4.17
-Contact: thunderbolt-software@lists.01.org
+Contact: Mika Westerberg <mika.westerberg@linux.intel.com>
Description: Holds a comma separated list of device unique_ids that
are allowed to be connected automatically during system
startup (e.g boot devices). The list always contains
@@ -33,7 +33,7 @@ Description: This attribute tells whether the system supports
What: /sys/bus/thunderbolt/devices/.../domainX/iommu_dma_protection
Date: Mar 2019
KernelVersion: 4.21
-Contact: thunderbolt-software@lists.01.org
+Contact: Mika Westerberg <mika.westerberg@linux.intel.com>
Description: This attribute tells whether the system uses IOMMU
for DMA protection. Value of 1 means IOMMU is used 0 means
it is not (DMA protection is solely based on Thunderbolt
@@ -42,7 +42,7 @@ Description: This attribute tells whether the system uses IOMMU
What: /sys/bus/thunderbolt/devices/.../domainX/security
Date: Sep 2017
KernelVersion: 4.13
-Contact: thunderbolt-software@lists.01.org
+Contact: Mika Westerberg <mika.westerberg@linux.intel.com>
Description: This attribute holds current Thunderbolt security level
set by the system BIOS. Possible values are:
@@ -64,7 +64,7 @@ Description: This attribute holds current Thunderbolt security level
What: /sys/bus/thunderbolt/devices/.../authorized
Date: Sep 2017
KernelVersion: 4.13
-Contact: thunderbolt-software@lists.01.org
+Contact: Mika Westerberg <mika.westerberg@linux.intel.com>
Description: This attribute is used to authorize Thunderbolt devices
after they have been connected. If the device is not
authorized, no PCIe devices are available to the system.
@@ -98,7 +98,7 @@ Description: This attribute is used to authorize Thunderbolt devices
What: /sys/bus/thunderbolt/devices/.../boot
Date: Jun 2018
KernelVersion: 4.17
-Contact: thunderbolt-software@lists.01.org
+Contact: Mika Westerberg <mika.westerberg@linux.intel.com>
Description: This attribute contains 1 if Thunderbolt device was already
authorized on boot and 0 otherwise.
@@ -113,7 +113,7 @@ Description: This attribute contains the generation of the Thunderbolt
What: /sys/bus/thunderbolt/devices/.../key
Date: Sep 2017
KernelVersion: 4.13
-Contact: thunderbolt-software@lists.01.org
+Contact: Mika Westerberg <mika.westerberg@linux.intel.com>
Description: When a devices supports Thunderbolt secure connect it will
have this attribute. Writing 32 byte hex string changes
authorization to use the secure connection method instead.
@@ -123,14 +123,14 @@ Description: When a devices supports Thunderbolt secure connect it will
What: /sys/bus/thunderbolt/devices/.../device
Date: Sep 2017
KernelVersion: 4.13
-Contact: thunderbolt-software@lists.01.org
+Contact: Mika Westerberg <mika.westerberg@linux.intel.com>
Description: This attribute contains id of this device extracted from
the device DROM.
What: /sys/bus/thunderbolt/devices/.../device_name
Date: Sep 2017
KernelVersion: 4.13
-Contact: thunderbolt-software@lists.01.org
+Contact: Mika Westerberg <mika.westerberg@linux.intel.com>
Description: This attribute contains name of this device extracted from
the device DROM.
@@ -172,21 +172,21 @@ Description: This attribute reports number of TX lanes the device is
What: /sys/bus/thunderbolt/devices/.../vendor
Date: Sep 2017
KernelVersion: 4.13
-Contact: thunderbolt-software@lists.01.org
+Contact: Mika Westerberg <mika.westerberg@linux.intel.com>
Description: This attribute contains vendor id of this device extracted
from the device DROM.
What: /sys/bus/thunderbolt/devices/.../vendor_name
Date: Sep 2017
KernelVersion: 4.13
-Contact: thunderbolt-software@lists.01.org
+Contact: Mika Westerberg <mika.westerberg@linux.intel.com>
Description: This attribute contains vendor name of this device extracted
from the device DROM.
What: /sys/bus/thunderbolt/devices/.../unique_id
Date: Sep 2017
KernelVersion: 4.13
-Contact: thunderbolt-software@lists.01.org
+Contact: Mika Westerberg <mika.westerberg@linux.intel.com>
Description: This attribute contains unique_id string of this device.
This is either read from hardware registers (UUID on
newer hardware) or based on UID from the device DROM.
@@ -195,7 +195,7 @@ Description: This attribute contains unique_id string of this device.
What: /sys/bus/thunderbolt/devices/.../nvm_version
Date: Sep 2017
KernelVersion: 4.13
-Contact: thunderbolt-software@lists.01.org
+Contact: Mika Westerberg <mika.westerberg@linux.intel.com>
Description: If the device has upgradeable firmware the version
number is available here. Format: %x.%x, major.minor.
If the device is in safe mode reading the file returns
@@ -204,7 +204,7 @@ Description: If the device has upgradeable firmware the version
What: /sys/bus/thunderbolt/devices/.../nvm_authenticate
Date: Sep 2017
KernelVersion: 4.13
-Contact: thunderbolt-software@lists.01.org
+Contact: Mika Westerberg <mika.westerberg@linux.intel.com>
Description: When new NVM image is written to the non-active NVM
area (through non_activeX NVMem device), the
authentication procedure is started by writing to
@@ -246,7 +246,7 @@ Description: For supported devices, automatically authenticate the new Thunderbo
What: /sys/bus/thunderbolt/devices/<xdomain>.<service>/key
Date: Jan 2018
KernelVersion: 4.15
-Contact: thunderbolt-software@lists.01.org
+Contact: Mika Westerberg <mika.westerberg@linux.intel.com>
Description: This contains name of the property directory the XDomain
service exposes. This entry describes the protocol in
question. Following directories are already reserved by
@@ -261,35 +261,35 @@ Description: This contains name of the property directory the XDomain
What: /sys/bus/thunderbolt/devices/<xdomain>.<service>/modalias
Date: Jan 2018
KernelVersion: 4.15
-Contact: thunderbolt-software@lists.01.org
+Contact: Mika Westerberg <mika.westerberg@linux.intel.com>
Description: Stores the same MODALIAS value emitted by uevent for
the XDomain service. Format: tbtsvc:kSpNvNrN
What: /sys/bus/thunderbolt/devices/<xdomain>.<service>/prtcid
Date: Jan 2018
KernelVersion: 4.15
-Contact: thunderbolt-software@lists.01.org
+Contact: Mika Westerberg <mika.westerberg@linux.intel.com>
Description: This contains XDomain protocol identifier the XDomain
service supports.
What: /sys/bus/thunderbolt/devices/<xdomain>.<service>/prtcvers
Date: Jan 2018
KernelVersion: 4.15
-Contact: thunderbolt-software@lists.01.org
+Contact: Mika Westerberg <mika.westerberg@linux.intel.com>
Description: This contains XDomain protocol version the XDomain
service supports.
What: /sys/bus/thunderbolt/devices/<xdomain>.<service>/prtcrevs
Date: Jan 2018
KernelVersion: 4.15
-Contact: thunderbolt-software@lists.01.org
+Contact: Mika Westerberg <mika.westerberg@linux.intel.com>
Description: This contains XDomain software version the XDomain
service supports.
What: /sys/bus/thunderbolt/devices/<xdomain>.<service>/prtcstns
Date: Jan 2018
KernelVersion: 4.15
-Contact: thunderbolt-software@lists.01.org
+Contact: Mika Westerberg <mika.westerberg@linux.intel.com>
Description: This contains XDomain service specific settings as
bitmask. Format: %x
diff --git a/Documentation/ABI/testing/sysfs-bus-umc b/Documentation/ABI/testing/sysfs-bus-umc
deleted file mode 100644
index 948fec412446..000000000000
--- a/Documentation/ABI/testing/sysfs-bus-umc
+++ /dev/null
@@ -1,28 +0,0 @@
-What: /sys/bus/umc/
-Date: July 2008
-KernelVersion: 2.6.27
-Contact: David Vrabel <david.vrabel@csr.com>
-Description:
- The Wireless Host Controller Interface (WHCI)
- specification describes a PCI-based device with
- multiple capabilities; the UWB Multi-interface
- Controller (UMC).
-
- The umc bus presents each of the individual
- capabilties as a device.
-
-What: /sys/bus/umc/devices/.../capability_id
-Date: July 2008
-KernelVersion: 2.6.27
-Contact: David Vrabel <david.vrabel@csr.com>
-Description:
- The ID of this capability, with 0 being the radio
- controller capability.
-
-What: /sys/bus/umc/devices/.../version
-Date: July 2008
-KernelVersion: 2.6.27
-Contact: David Vrabel <david.vrabel@csr.com>
-Description:
- The specification version this capability's hardware
- interface complies with.
diff --git a/Documentation/ABI/testing/sysfs-bus-usb b/Documentation/ABI/testing/sysfs-bus-usb
index cb172db41b34..af9b653422f1 100644
--- a/Documentation/ABI/testing/sysfs-bus-usb
+++ b/Documentation/ABI/testing/sysfs-bus-usb
@@ -28,40 +28,6 @@ Description:
drivers, non-authorized one are not. By default, wired
USB devices are authorized.
- Certified Wireless USB devices are not authorized
- initially and should be (by writing 1) after the
- device has been authenticated.
-
-What: /sys/bus/usb/device/.../wusb_cdid
-Date: July 2008
-KernelVersion: 2.6.27
-Contact: David Vrabel <david.vrabel@csr.com>
-Description:
- For Certified Wireless USB devices only.
-
- A devices's CDID, as 16 space-separated hex octets.
-
-What: /sys/bus/usb/device/.../wusb_ck
-Date: July 2008
-KernelVersion: 2.6.27
-Contact: David Vrabel <david.vrabel@csr.com>
-Description:
- For Certified Wireless USB devices only.
-
- Write the device's connection key (CK) to start the
- authentication of the device. The CK is 16
- space-separated hex octets.
-
-What: /sys/bus/usb/device/.../wusb_disconnect
-Date: July 2008
-KernelVersion: 2.6.27
-Contact: David Vrabel <david.vrabel@csr.com>
-Description:
- For Certified Wireless USB devices only.
-
- Write a 1 to force the device to disconnect
- (equivalent to unplugging a wired USB device).
-
What: /sys/bus/usb/drivers/.../new_id
Date: October 2011
Contact: linux-usb@vger.kernel.org
@@ -292,6 +258,16 @@ Description:
which is marked with early_stop has failed to initialize, it will ignore
all future connections until this attribute is clear.
+What: /sys/bus/usb/devices/.../<hub_interface>/port<X>/state
+Date: June 2023
+Contact: Roy Luo <royluo@google.com>
+Description:
+ Indicates current state of the USB device attached to the port.
+ Valid states are: 'not-attached', 'attached', 'powered',
+ 'reconnecting', 'unauthenticated', 'default', 'addressed',
+ 'configured', and 'suspended'. This file supports poll() to
+ monitor the state change from user space.
+
What: /sys/bus/usb/devices/.../power/usb2_lpm_l1_timeout
Date: May 2013
Contact: Mathias Nyman <mathias.nyman@linux.intel.com>
@@ -337,6 +313,15 @@ Description:
Inter-Chip SSIC devices support asymmetric lanes up to 4 lanes per
direction. Devices before USB 3.2 are single lane (tx_lanes = 1)
+What: /sys/bus/usb/devices/.../typec
+Date: November 2023
+Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com>
+Description:
+ Symlink to the USB Type-C partner device. USB Type-C partner
+ represents the component that communicates over the
+ Configuration Channel (CC signal on USB Type-C connectors and
+ cables) with the local port.
+
What: /sys/bus/usb/devices/usbX/bAlternateSetting
Description:
The current interface alternate setting number, in decimal.
@@ -457,6 +442,16 @@ What: /sys/bus/usb/devices/usbX/descriptors
Description:
Contains the interface descriptors, in binary.
+What: /sys/bus/usb/devices/usbX/bos_descriptors
+Date: March 2024
+Contact: Elbert Mai <code@elbertmai.com>
+Description:
+ Binary file containing the cached binary device object store (BOS)
+ of the device. This consists of the BOS descriptor followed by the
+ set of device capability descriptors. All descriptors read from
+ this file are in bus-endian format. Note that the kernel will not
+ request the BOS from a device if its bcdUSB is less than 0x0201.
+
What: /sys/bus/usb/devices/usbX/idProduct
Description:
Product ID, in hexadecimal.
diff --git a/Documentation/ABI/testing/sysfs-bus-vdpa b/Documentation/ABI/testing/sysfs-bus-vdpa
index 28a6111202ba..2c833b5163f2 100644
--- a/Documentation/ABI/testing/sysfs-bus-vdpa
+++ b/Documentation/ABI/testing/sysfs-bus-vdpa
@@ -1,6 +1,6 @@
-What: /sys/bus/vdpa/driver_autoprobe
+What: /sys/bus/vdpa/drivers_autoprobe
Date: March 2020
-Contact: virtualization@lists.linux-foundation.org
+Contact: virtualization@lists.linux.dev
Description:
This file determines whether new devices are immediately bound
to a driver after the creation. It initially contains 1, which
@@ -12,17 +12,17 @@ Description:
What: /sys/bus/vdpa/driver_probe
Date: March 2020
-Contact: virtualization@lists.linux-foundation.org
+Contact: virtualization@lists.linux.dev
Description:
Writing a device name to this file will cause the kernel binds
devices to a compatible driver.
- This can be useful when /sys/bus/vdpa/driver_autoprobe is
+ This can be useful when /sys/bus/vdpa/drivers_autoprobe is
disabled.
What: /sys/bus/vdpa/drivers/.../bind
Date: March 2020
-Contact: virtualization@lists.linux-foundation.org
+Contact: virtualization@lists.linux.dev
Description:
Writing a device name to this file will cause the driver to
attempt to bind to the device. This is useful for overriding
@@ -30,7 +30,7 @@ Description:
What: /sys/bus/vdpa/drivers/.../unbind
Date: March 2020
-Contact: virtualization@lists.linux-foundation.org
+Contact: virtualization@lists.linux.dev
Description:
Writing a device name to this file will cause the driver to
attempt to unbind from the device. This may be useful when
@@ -38,7 +38,7 @@ Description:
What: /sys/bus/vdpa/devices/.../driver_override
Date: November 2021
-Contact: virtualization@lists.linux-foundation.org
+Contact: virtualization@lists.linux.dev
Description:
This file allows the driver for a device to be specified.
When specified, only a driver with a name matching the value
diff --git a/Documentation/ABI/testing/sysfs-bus-wmi b/Documentation/ABI/testing/sysfs-bus-wmi
new file mode 100644
index 000000000000..d71a219c610e
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-wmi
@@ -0,0 +1,81 @@
+What: /sys/bus/wmi/devices/.../driver_override
+Date: February 2024
+Contact: Armin Wolf <W_Armin@gmx.de>
+Description:
+ This file allows the driver for a device to be specified which
+ will override standard ID table matching.
+ When specified, only a driver with a name matching the value
+ written to driver_override will have an opportunity to bind
+ to the device.
+ The override is specified by writing a string to the
+ driver_override file (echo wmi-event-dummy > driver_override).
+ The override may be cleared with an empty string (echo > \
+ driver_override) which returns the device to standard matching
+ rules binding.
+ Writing to driver_override does not automatically unbind the
+ device from its current driver or make any attempt to automatically
+ load the specified driver. If no driver with a matching name is
+ currently loaded in the kernel, the device will not bind to any
+ driver.
+ This also allows devices to opt-out of driver binding using a
+ driver_override name such as "none". Only a single driver may be
+ specified in the override, there is no support for parsing delimiters.
+
+What: /sys/bus/wmi/devices/.../modalias
+Date: November 20:15
+Contact: Andy Lutomirski <luto@kernel.org>
+Description:
+ This file contains the MODALIAS value emitted by uevent for a
+ given WMI device.
+
+ Format: wmi:XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX.
+
+What: /sys/bus/wmi/devices/.../guid
+Date: November 2015
+Contact: Andy Lutomirski <luto@kernel.org>
+Description:
+ This file contains the GUID used to match WMI devices to
+ compatible WMI drivers. This GUID is not necessarily unique
+ inside a given machine, it is solely used to identify the
+ interface exposed by a given WMI device.
+
+What: /sys/bus/wmi/devices/.../object_id
+Date: November 2015
+Contact: Andy Lutomirski <luto@kernel.org>
+Description:
+ This file contains the WMI object ID used internally to construct
+ the ACPI method names used by non-event WMI devices. It contains
+ two ASCII letters.
+
+What: /sys/bus/wmi/devices/.../notify_id
+Date: November 2015
+Contact: Andy Lutomirski <luto@kernel.org>
+Description:
+ This file contains the WMI notify ID used internally to map ACPI
+ events to WMI event devices. It contains two ASCII letters.
+
+What: /sys/bus/wmi/devices/.../instance_count
+Date: November 2015
+Contact: Andy Lutomirski <luto@kernel.org>
+Description:
+ This file contains the number of WMI object instances being
+ present on a given WMI device. It contains a non-negative
+ number.
+
+What: /sys/bus/wmi/devices/.../expensive
+Date: November 2015
+Contact: Andy Lutomirski <luto@kernel.org>
+Description:
+ This file contains a boolean flag signaling if interacting with
+ the given WMI device will consume significant CPU resources.
+ The WMI driver core will take care of enabling/disabling such
+ WMI devices.
+
+What: /sys/bus/wmi/devices/.../setable
+Date: May 2017
+Contact: Darren Hart (VMware) <dvhart@infradead.org>
+Description:
+ This file contains a boolean flags signaling the data block
+ associated with the given WMI device is writable. If the
+ given WMI device is not associated with a data block, then
+ this file will not exist.
diff --git a/Documentation/ABI/testing/sysfs-class b/Documentation/ABI/testing/sysfs-class
index 676530fcf747..906735faa1b8 100644
--- a/Documentation/ABI/testing/sysfs-class
+++ b/Documentation/ABI/testing/sysfs-class
@@ -1,5 +1,5 @@
What: /sys/class/
-Date: Febuary 2006
+Date: February 2006
Contact: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Description:
The /sys/class directory will consist of a group of
diff --git a/Documentation/ABI/testing/sysfs-class-chromeos b/Documentation/ABI/testing/sysfs-class-chromeos
index 74ece942722e..7fa5be6cc774 100644
--- a/Documentation/ABI/testing/sysfs-class-chromeos
+++ b/Documentation/ABI/testing/sysfs-class-chromeos
@@ -31,3 +31,23 @@ Date: August 2015
KernelVersion: 4.2
Description:
Show the information about the EC software and hardware.
+
+What: /sys/class/chromeos/cros_ec/usbpdmuxinfo
+Date: February 2025
+Description:
+ Show PD mux status for each typec port with following flags:
+ - "USB": USB connected
+ - "DP": DP connected
+ - "POLARITY": CC line Polarity inverted
+ - "HPD_IRQ": Hot Plug Detect interrupt is asserted
+ - "HPD_LVL": Hot Plug Detect level is asserted
+ - "SAFE": DP is in safe mode
+ - "TBT": TBT enabled
+ - "USB4": USB4 enabled
+
+What: /sys/class/chromeos/cros_ec/ap_mode_entry
+Date: February 2025
+Description:
+ Show if the AP mode entry EC feature is supported.
+ It indicates whether the EC waits for direction from the AP
+ to enter Type-C altmodes or USB4 mode.
diff --git a/Documentation/ABI/testing/sysfs-class-devfreq b/Documentation/ABI/testing/sysfs-class-devfreq
index 5e6b74f30406..df8ba88b9f6a 100644
--- a/Documentation/ABI/testing/sysfs-class-devfreq
+++ b/Documentation/ABI/testing/sysfs-class-devfreq
@@ -52,6 +52,9 @@ Description:
echo 0 > /sys/class/devfreq/.../trans_stat
+ If the transition table is bigger than PAGE_SIZE, reading
+ this will return an -EFBIG error.
+
What: /sys/class/devfreq/.../available_frequencies
Date: October 2012
Contact: Nishanth Menon <nm@ti.com>
@@ -129,3 +132,12 @@ Description:
A list of governors that support the node:
- simple_ondemand
+
+What: /sys/class/devfreq/.../related_cpus
+Date: June 2025
+Contact: Linux power management list <linux-pm@vger.kernel.org>
+Description: The list of CPUs whose performance is closely related to the
+ frequency of this devfreq domain.
+
+ This file is only present if a specific devfreq device is
+ closely associated with a subset of CPUs.
diff --git a/Documentation/ABI/testing/sysfs-class-drm b/Documentation/ABI/testing/sysfs-class-drm
new file mode 100644
index 000000000000..d23fed5e29a7
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-drm
@@ -0,0 +1,8 @@
+What: /sys/class/drm/.../boot_display
+Date: January 2026
+Contact: Linux DRI developers <dri-devel@vger.kernel.org>
+Description:
+ This file indicates that displays connected to the device were
+ used to display the boot sequence. If a display connected to
+ the device was used to display the boot sequence the file will
+ be present and contain "1".
diff --git a/Documentation/ABI/testing/sysfs-class-firmware b/Documentation/ABI/testing/sysfs-class-firmware
index 978d3d500400..fba87a55f3ca 100644
--- a/Documentation/ABI/testing/sysfs-class-firmware
+++ b/Documentation/ABI/testing/sysfs-class-firmware
@@ -1,7 +1,7 @@
What: /sys/class/firmware/.../data
Date: July 2022
KernelVersion: 5.19
-Contact: Russ Weight <russell.h.weight@intel.com>
+Contact: Russ Weight <russ.weight@linux.dev>
Description: The data sysfs file is used for firmware-fallback and for
firmware uploads. Cat a firmware image to this sysfs file
after you echo 1 to the loading sysfs file. When the firmware
@@ -13,7 +13,7 @@ Description: The data sysfs file is used for firmware-fallback and for
What: /sys/class/firmware/.../cancel
Date: July 2022
KernelVersion: 5.19
-Contact: Russ Weight <russell.h.weight@intel.com>
+Contact: Russ Weight <russ.weight@linux.dev>
Description: Write-only. For firmware uploads, write a "1" to this file to
request that the transfer of firmware data to the lower-level
device be canceled. This request will be rejected (EBUSY) if
@@ -23,7 +23,7 @@ Description: Write-only. For firmware uploads, write a "1" to this file to
What: /sys/class/firmware/.../error
Date: July 2022
KernelVersion: 5.19
-Contact: Russ Weight <russell.h.weight@intel.com>
+Contact: Russ Weight <russ.weight@linux.dev>
Description: Read-only. Returns a string describing a failed firmware
upload. This string will be in the form of <STATUS>:<ERROR>,
where <STATUS> will be one of the status strings described
@@ -37,7 +37,7 @@ Description: Read-only. Returns a string describing a failed firmware
What: /sys/class/firmware/.../loading
Date: July 2022
KernelVersion: 5.19
-Contact: Russ Weight <russell.h.weight@intel.com>
+Contact: Russ Weight <russ.weight@linux.dev>
Description: The loading sysfs file is used for both firmware-fallback and
for firmware uploads. Echo 1 onto the loading file to indicate
you are writing a firmware file to the data sysfs node. Echo
@@ -49,7 +49,7 @@ Description: The loading sysfs file is used for both firmware-fallback and
What: /sys/class/firmware/.../remaining_size
Date: July 2022
KernelVersion: 5.19
-Contact: Russ Weight <russell.h.weight@intel.com>
+Contact: Russ Weight <russ.weight@linux.dev>
Description: Read-only. For firmware upload, this file contains the size
of the firmware data that remains to be transferred to the
lower-level device driver. The size value is initialized to
@@ -62,7 +62,7 @@ Description: Read-only. For firmware upload, this file contains the size
What: /sys/class/firmware/.../status
Date: July 2022
KernelVersion: 5.19
-Contact: Russ Weight <russell.h.weight@intel.com>
+Contact: Russ Weight <russ.weight@linux.dev>
Description: Read-only. Returns a string describing the current status of
a firmware upload. The string will be one of the following:
idle, "receiving", "preparing", "transferring", "programming".
@@ -70,7 +70,7 @@ Description: Read-only. Returns a string describing the current status of
What: /sys/class/firmware/.../timeout
Date: July 2022
KernelVersion: 5.19
-Contact: Russ Weight <russell.h.weight@intel.com>
+Contact: Russ Weight <russ.weight@linux.dev>
Description: This file supports the timeout mechanism for firmware
fallback. This file has no affect on firmware uploads. For
more information on timeouts please see the documentation
diff --git a/Documentation/ABI/testing/sysfs-class-firmware-attributes b/Documentation/ABI/testing/sysfs-class-firmware-attributes
index 4cdba3477176..2713efa509b4 100644
--- a/Documentation/ABI/testing/sysfs-class-firmware-attributes
+++ b/Documentation/ABI/testing/sysfs-class-firmware-attributes
@@ -22,6 +22,11 @@ Description:
- integer: a range of numerical values
- string
+ HP specific types
+ -----------------
+ - ordered-list - a set of ordered list valid values
+
+
All attribute types support the following values:
current_value:
@@ -126,6 +131,21 @@ Description:
value will not be effective through sysfs until this rule is
met.
+ HP specific class extensions
+ ------------------------------
+
+ On HP systems the following additional attributes are available:
+
+ "ordered-list"-type specific properties:
+
+ elements:
+ A file that can be read to obtain the possible
+ list of values of the <attr>. Values are separated using
+ semi-colon (``;``) and listed according to their priority.
+ An element listed first has the highest priority. Writing
+ the list in a different order to current_value alters
+ the priority order for the particular attribute.
+
What: /sys/class/firmware-attributes/*/authentication/
Date: February 2021
KernelVersion: 5.11
@@ -173,7 +193,7 @@ Description:
mechanism:
The means of authentication. This attribute is mandatory.
- Only supported type currently is "password".
+ Supported types are "password" or "certificate".
max_password_length:
A file that can be read to obtain the
@@ -206,7 +226,7 @@ Description:
Drivers may emit a CHANGE uevent when a password is set or unset
userspace may check it again.
- On Dell and Lenovo systems, if Admin password is set, then all BIOS attributes
+ On Dell, Lenovo and HP systems, if Admin password is set, then all BIOS attributes
require password validation.
On Lenovo systems if you change the Admin password the new password is not active until
the next boot.
@@ -243,8 +263,8 @@ Description:
index:
Used with HDD and NVME authentication to set the drive index
- that is being referenced (e.g hdd0, hdd1 etc)
- This attribute defaults to device 0.
+ that is being referenced (e.g hdd1, hdd2 etc)
+ This attribute defaults to device 1.
certificate, signature, save_signature:
These attributes are used for certificate based authentication. This is
@@ -283,6 +303,7 @@ Description:
being configured allowing anyone to make changes.
After any of these operations the system must reboot for the changes to
take effect.
+ Admin and System certificates are supported from 2025 systems onward.
certificate_thumbprint:
Read only attribute used to display the MD5, SHA1 and SHA256 thumbprints
@@ -296,6 +317,15 @@ Description:
echo "signature" > authentication/Admin/signature
echo "password" > authentication/Admin/certificate_to_password
+ HP specific class extensions
+ --------------------------------
+
+ On HP systems the following additional settings are available:
+
+ role: enhanced-bios-auth:
+ This role is specific to Secure Platform Management (SPM) attribute.
+ It requires configuring an endorsement (kek) and signing certificate (sk).
+
What: /sys/class/firmware-attributes/*/attributes/pending_reboot
Date: February 2021
@@ -311,7 +341,7 @@ Description:
== =========================================
0 All BIOS attributes setting are current
1 A reboot is necessary to get pending BIOS
- attribute changes applied
+ attribute changes applied
== =========================================
Note, userspace applications need to follow below steps for efficient
@@ -354,6 +384,36 @@ Description:
Note that any changes to this attribute requires a reboot
for changes to take effect.
+What: /sys/class/firmware-attributes/*/attributes/save_settings
+Date: August 2023
+KernelVersion: 6.6
+Contact: Mark Pearson <mpearson-lenovo@squebb.ca>
+Description:
+ On Lenovo platforms there is a limitation in the number of times an attribute can be
+ saved. This is an architectural limitation and it limits the number of attributes
+ that can be modified to 48.
+ A solution for this is instead of the attribute being saved after every modification,
+ to allow a user to bulk set the attributes, and then trigger a final save. This allows
+ unlimited attributes.
+
+ Read the attribute to check what save mode is enabled (single or bulk).
+ E.g:
+ # cat /sys/class/firmware-attributes/thinklmi/attributes/save_settings
+ single
+
+ Write the attribute with 'bulk' to enable bulk save mode.
+ Write the attribute with 'single' to enable saving, after every attribute set.
+ The default setting is single mode.
+ E.g:
+ # echo bulk > /sys/class/firmware-attributes/thinklmi/attributes/save_settings
+
+ When in bulk mode write 'save' to trigger a save of all currently modified attributes.
+ Note, once a save has been triggered, in bulk mode, attributes can no longer be set and
+ will return a permissions error. This is to prevent users hitting the 48+ save limitation
+ (which requires entering the BIOS to clear the error condition)
+ E.g:
+ # echo save > /sys/class/firmware-attributes/thinklmi/attributes/save_settings
+
What: /sys/class/firmware-attributes/*/attributes/debug_cmd
Date: July 2021
KernelVersion: 5.14
@@ -364,3 +424,71 @@ Description:
use it to enable extra debug attributes or BIOS features for testing purposes.
Note that any changes to this attribute requires a reboot for changes to take effect.
+
+
+ HP specific class extensions - Secure Platform Manager (SPM)
+ --------------------------------
+
+What: /sys/class/firmware-attributes/*/authentication/SPM/kek
+Date: March 2023
+KernelVersion: 5.18
+Contact: "Jorge Lopez" <jorge.lopez2@hp.com>
+Description:
+ 'kek' Key-Encryption-Key is a write-only file that can be used to configure the
+ RSA public key that will be used by the BIOS to verify
+ signatures when setting the signing key. When written,
+ the bytes should correspond to the KEK certificate
+ (x509 .DER format containing an OU). The size of the
+ certificate must be less than or equal to 4095 bytes.
+
+What: /sys/class/firmware-attributes/*/authentication/SPM/sk
+Date: March 2023
+KernelVersion: 5.18
+Contact: "Jorge Lopez" <jorge.lopez2@hp.com>
+Description:
+ 'sk' Signature Key is a write-only file that can be used to configure the RSA
+ public key that will be used by the BIOS to verify signatures
+ when configuring BIOS settings and security features. When
+ written, the bytes should correspond to the modulus of the
+ public key. The exponent is assumed to be 0x10001.
+
+What: /sys/class/firmware-attributes/*/authentication/SPM/status
+Date: March 2023
+KernelVersion: 5.18
+Contact: "Jorge Lopez" <jorge.lopez2@hp.com>
+Description:
+ 'status' is a read-only file that returns ASCII text in JSON format reporting
+ the status information.
+
+ "State": "not provisioned | provisioned | provisioning in progress",
+ "Version": "Major.Minor",
+ "Nonce": <16-bit unsigned number display in base 10>,
+ "FeaturesInUse": <16-bit unsigned number display in base 10>,
+ "EndorsementKeyMod": "<256 bytes in base64>",
+ "SigningKeyMod": "<256 bytes in base64>"
+
+What: /sys/class/firmware-attributes/*/attributes/Sure_Start/audit_log_entries
+Date: March 2023
+KernelVersion: 5.18
+Contact: "Jorge Lopez" <jorge.lopez2@hp.com>
+Description:
+ 'audit_log_entries' is a read-only file that returns the events in the log.
+
+ Audit log entry format
+
+ Byte 0-15: Requested Audit Log entry (Each Audit log is 16 bytes)
+ Byte 16-127: Unused
+
+What: /sys/class/firmware-attributes/*/attributes/Sure_Start/audit_log_entry_count
+Date: March 2023
+KernelVersion: 5.18
+Contact: "Jorge Lopez" <jorge.lopez2@hp.com>
+Description:
+ 'audit_log_entry_count' is a read-only file that returns the number of existing
+ audit log events available to be read. Values are separated using comma. (``,``)
+
+ [No of entries],[log entry size],[Max number of entries supported]
+
+ log entry size identifies audit log size for the current BIOS version.
+ The current size is 16 bytes but it can be up to 128 bytes long in future BIOS
+ versions.
diff --git a/Documentation/ABI/testing/sysfs-class-hwmon b/Documentation/ABI/testing/sysfs-class-hwmon
index 638f4c6d4ec7..cfd0d0bab483 100644
--- a/Documentation/ABI/testing/sysfs-class-hwmon
+++ b/Documentation/ABI/testing/sysfs-class-hwmon
@@ -149,6 +149,15 @@ Description:
RW
+What: /sys/class/hwmon/hwmonX/inY_fault
+Description:
+ Reports a voltage hard failure (eg: shorted component)
+
+ - 1: Failed
+ - 0: Ok
+
+ RO
+
What: /sys/class/hwmon/hwmonX/cpuY_vid
Description:
CPU core reference voltage.
@@ -381,6 +390,15 @@ Description:
RW
+What: /sys/class/hwmon/hwmonX/tempY_max_alarm
+Description:
+ Maximum temperature alarm flag.
+
+ - 0: OK
+ - 1: temperature has reached tempY_max
+
+ RO
+
What: /sys/class/hwmon/hwmonX/tempY_min
Description:
Temperature min value.
@@ -389,6 +407,15 @@ Description:
RW
+What: /sys/class/hwmon/hwmonX/tempY_min_alarm
+Description:
+ Minimum temperature alarm flag.
+
+ - 0: OK
+ - 1: temperature has reached tempY_min
+
+ RO
+
What: /sys/class/hwmon/hwmonX/tempY_max_hyst
Description:
Temperature hysteresis value for max limit.
@@ -434,12 +461,7 @@ Description:
- 0: OK
- 1: temperature has reached tempY_crit
- RW
-
- Contrary to regular alarm flags which clear themselves
- automatically when read, this one sticks until cleared by
- the user. This is done by writing 0 to the file. Writing
- other values is unsupported.
+ RO
What: /sys/class/hwmon/hwmonX/tempY_crit_hyst
Description:
@@ -462,6 +484,15 @@ Description:
RW
+What: /sys/class/hwmon/hwmonX/tempY_emergency_alarm
+Description:
+ Emergency high temperature alarm flag.
+
+ - 0: OK
+ - 1: temperature has reached tempY_emergency
+
+ RO
+
What: /sys/class/hwmon/hwmonX/tempY_emergency_hyst
Description:
Temperature hysteresis value for emergency limit.
@@ -887,15 +918,15 @@ Description:
RW
-What: /sys/class/hwmon/hwmonX/humidityY_input
+What: /sys/class/hwmon/hwmonX/humidityY_alarm
Description:
- Humidity
+ Humidity limit detection
- Unit: milli-percent (per cent mille, pcm)
+ - 0: OK
+ - 1: Humidity limit has been reached
RO
-
What: /sys/class/hwmon/hwmonX/humidityY_enable
Description:
Enable or disable the sensors
@@ -908,6 +939,92 @@ Description:
RW
+What: /sys/class/hwmon/hwmonX/humidityY_fault
+Description:
+ Reports a humidity sensor failure.
+
+ - 1: Failed
+ - 0: Ok
+
+ RO
+
+What: /sys/class/hwmon/hwmonX/humidityY_input
+Description:
+ Humidity
+
+ Unit: milli-percent (per cent mille, pcm)
+
+ RO
+
+What: /sys/class/hwmon/hwmonX/humidityY_label
+Description:
+ Suggested humidity channel label.
+
+ Text string
+
+ Should only be created if the driver has hints about what
+ this humidity channel is being used for, and user-space
+ doesn't. In all other cases, the label is provided by
+ user-space.
+
+ RO
+
+What: /sys/class/hwmon/hwmonX/humidityY_max
+Description:
+ Humidity max value.
+
+ Unit: milli-percent (per cent mille, pcm)
+
+ RW
+
+What: /sys/class/hwmon/hwmonX/humidityY_max_alarm
+Description:
+ Maximum humidity detection
+
+ - 0: OK
+ - 1: Maximum humidity detected
+
+ RO
+
+What: /sys/class/hwmon/hwmonX/humidityY_max_hyst
+Description:
+ Humidity hysteresis value for max limit.
+
+ Unit: milli-percent (per cent mille, pcm)
+
+ Must be reported as an absolute humidity, NOT a delta
+ from the max value.
+
+ RW
+
+What: /sys/class/hwmon/hwmonX/humidityY_min
+Description:
+ Humidity min value.
+
+ Unit: milli-percent (per cent mille, pcm)
+
+ RW
+
+What: /sys/class/hwmon/hwmonX/humidityY_min_alarm
+Description:
+ Minimum humidity detection
+
+ - 0: OK
+ - 1: Minimum humidity detected
+
+ RO
+
+What: /sys/class/hwmon/hwmonX/humidityY_min_hyst
+Description:
+ Humidity hysteresis value for min limit.
+
+ Unit: milli-percent (per cent mille, pcm)
+
+ Must be reported as an absolute humidity, NOT a delta
+ from the min value.
+
+ RW
+
What: /sys/class/hwmon/hwmonX/humidityY_rated_min
Description:
Minimum rated humidity.
diff --git a/Documentation/ABI/testing/sysfs-class-intel_pmt-features b/Documentation/ABI/testing/sysfs-class-intel_pmt-features
new file mode 100644
index 000000000000..cddb30e5bdf6
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-intel_pmt-features
@@ -0,0 +1,134 @@
+What: /sys/class/intel_pmt/features-<PCI BDF>/
+Date: 2025-04-24
+KernelVersion: 6.16
+Contact: david.e.box@linux.intel.com
+Description:
+ The `features-<PCI BDF>/` directory represents the "features"
+ capability exposed by Intel PMT (Platform Monitoring Technology)
+ for the given PCI device.
+
+ Each directory corresponds to a PMT feature and contains
+ attributes describing the available telemetry, monitoring, or
+ control functionalities.
+
+Directory Structure:
+
+ /sys/class/intel_pmt/features-<PCI BDF>/
+ ├── accelerator_telemetry/ # Per-accelerator telemetry data
+ ├── crash_log/ # Contains system crash telemetry logs
+ ├── per_core_environment_telemetry/ # Environmental telemetry per core
+ ├── per_core_performance_telemetry/ # Performance telemetry per core
+ ├── per_rmid_energy_telemetry/ # Energy telemetry for RMIDs
+ ├── per_rmid_perf_telemetry/ # Performance telemetry for RMIDs
+ ├── tpmi_control/ # TPMI-related controls and telemetry
+ ├── tracing/ # PMT tracing features
+ └── uncore_telemetry/ # Uncore telemetry data
+
+Common Files (Present in all feature directories):
+
+ caps
+ - Read-only
+ - Lists available capabilities for this feature.
+
+ guids
+ - Read-only
+ - Lists GUIDs associated with this feature.
+
+Additional Attributes (Conditional Presence):
+
+ max_command_size
+ - Read-only
+ - Present if the feature supports out-of-band MCTP access.
+ - Maximum supported MCTP command size for out-of-band PMT access (bytes).
+
+ max_stream_size
+ - Read-only
+ - Present if the feature supports out-of-band MCTP access.
+ - Maximum supported MCTP stream size (bytes).
+
+ min_watcher_period_ms
+ - Read-only
+ - Present if the feature supports the watcher API.
+ The watcher API provides a writable control interface that allows user
+ configuration of monitoring behavior, such as setting the sampling or
+ reporting interval.
+ - Minimum supported time period for the watcher interface (milliseconds).
+
+ num_rmids
+ - Read-only
+ - Present if the feature supports RMID (Resource Monitoring ID) telemetry.
+ RMIDs are identifiers used by hardware to track and report resource usage,
+ such as memory bandwidth or energy consumption, on a per-logical-entity
+ basis (e.g., per core, thread, or process group).
+ - Maximum number of RMIDs tracked simultaneously.
+
+Example:
+For a device with PCI BDF `0000:00:03.1`, the directory tree could look like:
+
+ /sys/class/intel_pmt/features-0000:00:03.1/
+ ├── accelerator_telemetry/
+ │ ├── caps
+ │ ├── guids
+ │ ├── max_command_size
+ │ ├── max_stream_size
+ │ ├── min_watcher_period_ms
+ ├── crash_log/
+ │ ├── caps
+ │ ├── guids
+ │ ├── max_command_size
+ │ ├── max_stream_size
+ ├── per_core_environment_telemetry/
+ │ ├── caps
+ │ ├── guids
+ │ ├── max_command_size
+ │ ├── max_stream_size
+ │ ├── min_watcher_period_ms
+ ├── per_rmid_energy_telemetry/
+ │ ├── caps
+ │ ├── guids
+ │ ├── max_command_size
+ │ ├── max_stream_size
+ │ ├── min_watcher_period_ms
+ │ ├── num_rmids
+ ├── tpmi_control/
+ │ ├── caps
+ │ ├── guids
+ ├── tracing/
+ │ ├── caps
+ │ ├── guids
+ ├── uncore_telemetry/
+ │ ├── caps
+ │ ├── guids
+ │ ├── max_command_size
+ │ ├── max_stream_size
+ │ ├── min_watcher_period_ms
+
+Notes:
+ - Some attributes are only present if the corresponding feature supports
+ the capability (e.g., `max_command_size` for MCTP-capable features).
+ - Features supporting RMIDs include `num_rmids`.
+ - Features supporting the watcher API include `min_watcher_period_ms`.
+ - The `caps` file provides additional information about the functionality
+ of the feature.
+
+Example 'caps' content for the 'tracing' feature:
+
+ /sys/class/intel_pmt/features-0000:00:03.1/
+ ├── tracing/
+ │ ├── caps
+
+ telemetry Available: No
+ watcher Available: Yes
+ crashlog Available: No
+ streaming Available: No
+ threashold Available: No
+ window Available: No
+ config Available: Yes
+ tracing Available: No
+ inband Available: Yes
+ oob Available: Yes
+ secure_chan Available: No
+ pmt_sp Available: Yes
+ pmt_sp_policy Available: Yes
+ mailbox Available: Yes
+ bios_lock Available: Yes
diff --git a/Documentation/ABI/testing/sysfs-class-led b/Documentation/ABI/testing/sysfs-class-led
index 2e24ac3bd7ef..0313b82644f2 100644
--- a/Documentation/ABI/testing/sysfs-class-led
+++ b/Documentation/ABI/testing/sysfs-class-led
@@ -72,6 +72,12 @@ Description:
/sys/class/leds/<led> once a given trigger is selected. For
their documentation see `sysfs-class-led-trigger-*`.
+ Writing "none" removes the trigger for this LED.
+
+ Writing "default" sets the trigger to the LED's default trigger
+ (which would often be configured in the device tree for the
+ hardware).
+
What: /sys/class/leds/<led>/inverted
Date: January 2011
KernelVersion: 2.6.38
diff --git a/Documentation/ABI/testing/sysfs-class-led-driver-aw200xx b/Documentation/ABI/testing/sysfs-class-led-driver-aw200xx
new file mode 100644
index 000000000000..6d4449cf9d71
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-led-driver-aw200xx
@@ -0,0 +1,5 @@
+What: /sys/class/leds/<led>/dim
+Date: May 2023
+Description: 64-level DIM current. If you write a negative value or
+ "auto", the dim will be calculated according to the
+ brightness.
diff --git a/Documentation/ABI/testing/sysfs-class-led-driver-turris-omnia b/Documentation/ABI/testing/sysfs-class-led-driver-turris-omnia
index c4d46970c1cf..369b4ae8be5f 100644
--- a/Documentation/ABI/testing/sysfs-class-led-driver-turris-omnia
+++ b/Documentation/ABI/testing/sysfs-class-led-driver-turris-omnia
@@ -12,3 +12,17 @@ Description: (RW) On the front panel of the Turris Omnia router there is also
able to change this setting from software.
Format: %i
+
+What: /sys/class/leds/<led>/device/gamma_correction
+Date: August 2023
+KernelVersion: 6.6
+Contact: Marek Behún <kabel@kernel.org>
+Description: (RW) Newer versions of the microcontroller firmware of the
+ Turris Omnia router support gamma correction for the RGB LEDs.
+ This feature can be enabled/disabled by writing to this file.
+
+ If the feature is not supported because the MCU firmware is too
+ old, the file always reads as 0, and writing to the file results
+ in the EOPNOTSUPP error.
+
+ Format: %i
diff --git a/Documentation/ABI/testing/sysfs-class-led-trigger-netdev b/Documentation/ABI/testing/sysfs-class-led-trigger-netdev
index 646540950e38..ed46b37ab8a2 100644
--- a/Documentation/ABI/testing/sysfs-class-led-trigger-netdev
+++ b/Documentation/ABI/testing/sysfs-class-led-trigger-netdev
@@ -13,6 +13,11 @@ Description:
Specifies the duration of the LED blink in milliseconds.
Defaults to 50 ms.
+ When offloaded is true, the interval value MUST be set to the
+ default value and cannot be changed.
+ Trying to set any value in this specific mode will return
+ an EINVAL error.
+
What: /sys/class/leds/<led>/link
Date: Dec 2017
KernelVersion: 4.16
@@ -39,6 +44,9 @@ Description:
If set to 1, the LED will blink for the milliseconds specified
in interval to signal transmission.
+ When offloaded is true, the blink interval is controlled by
+ hardware and won't reflect the value set in interval.
+
What: /sys/class/leds/<led>/rx
Date: Dec 2017
KernelVersion: 4.16
@@ -50,3 +58,135 @@ Description:
If set to 1, the LED will blink for the milliseconds specified
in interval to signal reception.
+
+ When offloaded is true, the blink interval is controlled by
+ hardware and won't reflect the value set in interval.
+
+What: /sys/class/leds/<led>/offloaded
+Date: Jun 2023
+KernelVersion: 6.5
+Contact: linux-leds@vger.kernel.org
+Description:
+ Communicate whether the LED trigger modes are offloaded to
+ hardware or whether software fallback is used.
+
+ If 0, the LED is using software fallback to blink.
+
+ If 1, the LED blinking in requested mode is offloaded to
+ hardware.
+
+What: /sys/class/leds/<led>/link_10
+Date: Jun 2023
+KernelVersion: 6.5
+Contact: linux-leds@vger.kernel.org
+Description:
+ Signal the link speed state of 10Mbps of the named network device.
+
+ If set to 0 (default), the LED's normal state is off.
+
+ If set to 1, the LED's normal state reflects the link state
+ speed of 10MBps of the named network device.
+ Setting this value also immediately changes the LED state.
+
+ Present only if the named network device supports 10Mbps link speed.
+
+What: /sys/class/leds/<led>/link_100
+Date: Jun 2023
+KernelVersion: 6.5
+Contact: linux-leds@vger.kernel.org
+Description:
+ Signal the link speed state of 100Mbps of the named network device.
+
+ If set to 0 (default), the LED's normal state is off.
+
+ If set to 1, the LED's normal state reflects the link state
+ speed of 100Mbps of the named network device.
+ Setting this value also immediately changes the LED state.
+
+ Present only if the named network device supports 100Mbps link speed.
+
+What: /sys/class/leds/<led>/link_1000
+Date: Jun 2023
+KernelVersion: 6.5
+Contact: linux-leds@vger.kernel.org
+Description:
+ Signal the link speed state of 1000Mbps of the named network device.
+
+ If set to 0 (default), the LED's normal state is off.
+
+ If set to 1, the LED's normal state reflects the link state
+ speed of 1000Mbps of the named network device.
+ Setting this value also immediately changes the LED state.
+
+ Present only if the named network device supports 1000Mbps link speed.
+
+What: /sys/class/leds/<led>/link_2500
+Date: Nov 2023
+KernelVersion: 6.8
+Contact: linux-leds@vger.kernel.org
+Description:
+ Signal the link speed state of 2500Mbps of the named network device.
+
+ If set to 0 (default), the LED's normal state is off.
+
+ If set to 1, the LED's normal state reflects the link state
+ speed of 2500Mbps of the named network device.
+ Setting this value also immediately changes the LED state.
+
+ Present only if the named network device supports 2500Mbps link speed.
+
+What: /sys/class/leds/<led>/link_5000
+Date: Nov 2023
+KernelVersion: 6.8
+Contact: linux-leds@vger.kernel.org
+Description:
+ Signal the link speed state of 5000Mbps of the named network device.
+
+ If set to 0 (default), the LED's normal state is off.
+
+ If set to 1, the LED's normal state reflects the link state
+ speed of 5000Mbps of the named network device.
+ Setting this value also immediately changes the LED state.
+
+ Present only if the named network device supports 5000Mbps link speed.
+
+What: /sys/class/leds/<led>/link_10000
+Date: Nov 2023
+KernelVersion: 6.8
+Contact: linux-leds@vger.kernel.org
+Description:
+ Signal the link speed state of 10000Mbps of the named network device.
+
+ If set to 0 (default), the LED's normal state is off.
+
+ If set to 1, the LED's normal state reflects the link state
+ speed of 10000Mbps of the named network device.
+ Setting this value also immediately changes the LED state.
+
+ Present only if the named network device supports 10000Mbps link speed.
+
+What: /sys/class/leds/<led>/half_duplex
+Date: Jun 2023
+KernelVersion: 6.5
+Contact: linux-leds@vger.kernel.org
+Description:
+ Signal the link half duplex state of the named network device.
+
+ If set to 0 (default), the LED's normal state is off.
+
+ If set to 1, the LED's normal state reflects the link half
+ duplex state of the named network device.
+ Setting this value also immediately changes the LED state.
+
+What: /sys/class/leds/<led>/full_duplex
+Date: Jun 2023
+KernelVersion: 6.5
+Contact: linux-leds@vger.kernel.org
+Description:
+ Signal the link full duplex state of the named network device.
+
+ If set to 0 (default), the LED's normal state is off.
+
+ If set to 1, the LED's normal state reflects the link full
+ duplex state of the named network device.
+ Setting this value also immediately changes the LED state.
diff --git a/Documentation/ABI/testing/sysfs-class-led-trigger-pattern b/Documentation/ABI/testing/sysfs-class-led-trigger-pattern
index 8c57d2780554..22f28f2e9ac4 100644
--- a/Documentation/ABI/testing/sysfs-class-led-trigger-pattern
+++ b/Documentation/ABI/testing/sysfs-class-led-trigger-pattern
@@ -12,6 +12,16 @@ Description:
The exact format is described in:
Documentation/devicetree/bindings/leds/leds-trigger-pattern.txt
+What: /sys/class/leds/<led>/hr_pattern
+Date: April 2024
+Description:
+ Specify a software pattern for the LED, that supports altering
+ the brightness for the specified duration with one software
+ timer. It can do gradual dimming and step change of brightness.
+
+ Unlike the /sys/class/leds/<led>/pattern, this attribute runs
+ a pattern on high-resolution timer (hrtimer).
+
What: /sys/class/leds/<led>/hw_pattern
Date: September 2018
KernelVersion: 4.20
diff --git a/Documentation/ABI/testing/sysfs-class-led-trigger-tty b/Documentation/ABI/testing/sysfs-class-led-trigger-tty
index 2bf6b24e781b..308fbc3627cd 100644
--- a/Documentation/ABI/testing/sysfs-class-led-trigger-tty
+++ b/Documentation/ABI/testing/sysfs-class-led-trigger-tty
@@ -1,6 +1,62 @@
-What: /sys/class/leds/<led>/ttyname
+What: /sys/class/leds/<tty_led>/ttyname
Date: Dec 2020
KernelVersion: 5.10
Contact: linux-leds@vger.kernel.org
Description:
Specifies the tty device name of the triggering tty
+
+What: /sys/class/leds/<tty_led>/rx
+Date: February 2024
+KernelVersion: 6.8
+Description:
+ Signal reception (rx) of data on the named tty device.
+ If set to 0, the LED will not blink on reception.
+ If set to 1 (default), the LED will blink on reception.
+
+What: /sys/class/leds/<tty_led>/tx
+Date: February 2024
+KernelVersion: 6.8
+Description:
+ Signal transmission (tx) of data on the named tty device.
+ If set to 0, the LED will not blink on transmission.
+ If set to 1 (default), the LED will blink on transmission.
+
+What: /sys/class/leds/<tty_led>/cts
+Date: February 2024
+KernelVersion: 6.8
+Description:
+ CTS = Clear To Send
+ DCE is ready to accept data from the DTE.
+ If the line state is detected, the LED is switched on.
+ If set to 0 (default), the LED will not evaluate CTS.
+ If set to 1, the LED will evaluate CTS.
+
+What: /sys/class/leds/<tty_led>/dsr
+Date: February 2024
+KernelVersion: 6.8
+Description:
+ DSR = Data Set Ready
+ DCE is ready to receive and send data.
+ If the line state is detected, the LED is switched on.
+ If set to 0 (default), the LED will not evaluate DSR.
+ If set to 1, the LED will evaluate DSR.
+
+What: /sys/class/leds/<tty_led>/dcd
+Date: February 2024
+KernelVersion: 6.8
+Description:
+ DCD = Data Carrier Detect
+ DTE is receiving a carrier from the DCE.
+ If the line state is detected, the LED is switched on.
+ If set to 0 (default), the LED will not evaluate CAR (DCD).
+ If set to 1, the LED will evaluate CAR (DCD).
+
+What: /sys/class/leds/<tty_led>/rng
+Date: February 2024
+KernelVersion: 6.8
+Description:
+ RNG = Ring Indicator
+ DCE has detected an incoming ring signal on the telephone
+ line. If the line state is detected, the LED is switched on.
+ If set to 0 (default), the LED will not evaluate RNG.
+ If set to 1, the LED will evaluate RNG.
diff --git a/Documentation/ABI/testing/sysfs-class-mtd b/Documentation/ABI/testing/sysfs-class-mtd
index 3bc7c0a95c92..f77fa4f6d465 100644
--- a/Documentation/ABI/testing/sysfs-class-mtd
+++ b/Documentation/ABI/testing/sysfs-class-mtd
@@ -39,7 +39,7 @@ KernelVersion: 2.6.29
Contact: linux-mtd@lists.infradead.org
Description:
Major and minor numbers of the character device corresponding
- to the read-only variant of thie MTD device (in
+ to the read-only variant of the MTD device (in
<major>:<minor> format). In this case <minor> will be odd.
What: /sys/class/mtd/mtdX/erasesize
diff --git a/Documentation/ABI/testing/sysfs-class-net b/Documentation/ABI/testing/sysfs-class-net
index 1419103d11f9..ebf21beba846 100644
--- a/Documentation/ABI/testing/sysfs-class-net
+++ b/Documentation/ABI/testing/sysfs-class-net
@@ -82,7 +82,7 @@ KernelVersion: 2.6.12
Contact: netdev@vger.kernel.org
Description:
Indicates the current physical link state of the interface.
- Posssible values are:
+ Possible values are:
== =====================
0 physical link is down
diff --git a/Documentation/ABI/testing/sysfs-class-net-phydev b/Documentation/ABI/testing/sysfs-class-net-phydev
index ac722dd5e694..31615c59bff9 100644
--- a/Documentation/ABI/testing/sysfs-class-net-phydev
+++ b/Documentation/ABI/testing/sysfs-class-net-phydev
@@ -26,6 +26,16 @@ Description:
This ID is used to match the device with the appropriate
driver.
+What: /sys/class/mdio_bus/<bus>/<device>/c45_phy_ids/mmd<n>_device_id
+Date: June 2025
+KernelVersion: 6.17
+Contact: netdev@vger.kernel.org
+Description:
+ This attribute contains the 32-bit PHY Identifier as reported
+ by the device during bus enumeration, encoded in hexadecimal.
+ These C45 IDs are used to match the device with the appropriate
+ driver. These files are invisible to the C22 device.
+
What: /sys/class/mdio_bus/<bus>/<device>/phy_interface
Date: February 2014
KernelVersion: 3.15
diff --git a/Documentation/ABI/testing/sysfs-class-net-qmi b/Documentation/ABI/testing/sysfs-class-net-qmi
index 47e6b9732337..b028f5bc86db 100644
--- a/Documentation/ABI/testing/sysfs-class-net-qmi
+++ b/Documentation/ABI/testing/sysfs-class-net-qmi
@@ -62,7 +62,7 @@ Description:
What: /sys/class/net/<iface>/qmi/pass_through
Date: January 2021
KernelVersion: 5.12
-Contact: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
+Contact: Subash Abhinov Kasiviswanathan <quic_subashab@quicinc.com>
Description:
Boolean. Default: 'N'
diff --git a/Documentation/ABI/testing/sysfs-class-net-queues b/Documentation/ABI/testing/sysfs-class-net-queues
index 978b76358661..84aa25e0d14d 100644
--- a/Documentation/ABI/testing/sysfs-class-net-queues
+++ b/Documentation/ABI/testing/sysfs-class-net-queues
@@ -1,4 +1,4 @@
-What: /sys/class/<iface>/queues/rx-<queue>/rps_cpus
+What: /sys/class/net/<iface>/queues/rx-<queue>/rps_cpus
Date: March 2010
KernelVersion: 2.6.35
Contact: netdev@vger.kernel.org
@@ -8,7 +8,7 @@ Description:
network device queue. Possible values depend on the number
of available CPU(s) in the system.
-What: /sys/class/<iface>/queues/rx-<queue>/rps_flow_cnt
+What: /sys/class/net/<iface>/queues/rx-<queue>/rps_flow_cnt
Date: April 2010
KernelVersion: 2.6.35
Contact: netdev@vger.kernel.org
@@ -16,7 +16,7 @@ Description:
Number of Receive Packet Steering flows being currently
processed by this particular network device receive queue.
-What: /sys/class/<iface>/queues/tx-<queue>/tx_timeout
+What: /sys/class/net/<iface>/queues/tx-<queue>/tx_timeout
Date: November 2011
KernelVersion: 3.3
Contact: netdev@vger.kernel.org
@@ -24,7 +24,7 @@ Description:
Indicates the number of transmit timeout events seen by this
network interface transmit queue.
-What: /sys/class/<iface>/queues/tx-<queue>/tx_maxrate
+What: /sys/class/net/<iface>/queues/tx-<queue>/tx_maxrate
Date: March 2015
KernelVersion: 4.1
Contact: netdev@vger.kernel.org
@@ -32,17 +32,17 @@ Description:
A Mbps max-rate set for the queue, a value of zero means disabled,
default is disabled.
-What: /sys/class/<iface>/queues/tx-<queue>/xps_cpus
+What: /sys/class/net/<iface>/queues/tx-<queue>/xps_cpus
Date: November 2010
KernelVersion: 2.6.38
Contact: netdev@vger.kernel.org
Description:
Mask of the CPU(s) currently enabled to participate into the
Transmit Packet Steering packet processing flow for this
- network device transmit queue. Possible vaules depend on the
+ network device transmit queue. Possible values depend on the
number of available CPU(s) in the system.
-What: /sys/class/<iface>/queues/tx-<queue>/xps_rxqs
+What: /sys/class/net/<iface>/queues/tx-<queue>/xps_rxqs
Date: June 2018
KernelVersion: 4.18.0
Contact: netdev@vger.kernel.org
@@ -53,7 +53,7 @@ Description:
number of available receive queue(s) in the network device.
Default is disabled.
-What: /sys/class/<iface>/queues/tx-<queue>/byte_queue_limits/hold_time
+What: /sys/class/net/<iface>/queues/tx-<queue>/byte_queue_limits/hold_time
Date: November 2011
KernelVersion: 3.3
Contact: netdev@vger.kernel.org
@@ -62,7 +62,7 @@ Description:
of this particular network device transmit queue.
Default value is 1000.
-What: /sys/class/<iface>/queues/tx-<queue>/byte_queue_limits/inflight
+What: /sys/class/net/<iface>/queues/tx-<queue>/byte_queue_limits/inflight
Date: November 2011
KernelVersion: 3.3
Contact: netdev@vger.kernel.org
@@ -70,7 +70,7 @@ Description:
Indicates the number of bytes (objects) in flight on this
network device transmit queue.
-What: /sys/class/<iface>/queues/tx-<queue>/byte_queue_limits/limit
+What: /sys/class/net/<iface>/queues/tx-<queue>/byte_queue_limits/limit
Date: November 2011
KernelVersion: 3.3
Contact: netdev@vger.kernel.org
@@ -79,7 +79,7 @@ Description:
on this network device transmit queue. This value is clamped
to be within the bounds defined by limit_max and limit_min.
-What: /sys/class/<iface>/queues/tx-<queue>/byte_queue_limits/limit_max
+What: /sys/class/net/<iface>/queues/tx-<queue>/byte_queue_limits/limit_max
Date: November 2011
KernelVersion: 3.3
Contact: netdev@vger.kernel.org
@@ -88,7 +88,7 @@ Description:
queued on this network device transmit queue. See
include/linux/dynamic_queue_limits.h for the default value.
-What: /sys/class/<iface>/queues/tx-<queue>/byte_queue_limits/limit_min
+What: /sys/class/net/<iface>/queues/tx-<queue>/byte_queue_limits/limit_min
Date: November 2011
KernelVersion: 3.3
Contact: netdev@vger.kernel.org
@@ -96,3 +96,26 @@ Description:
Indicates the absolute minimum limit of bytes allowed to be
queued on this network device transmit queue. Default value is
0.
+
+What: /sys/class/net/<iface>/queues/tx-<queue>/byte_queue_limits/stall_thrs
+Date: Jan 2024
+KernelVersion: 6.9
+Contact: netdev@vger.kernel.org
+Description:
+ Tx completion stall detection threshold in ms. Kernel will
+ guarantee to detect all stalls longer than this threshold but
+ may also detect stalls longer than half of the threshold.
+
+What: /sys/class/net/<iface>/queues/tx-<queue>/byte_queue_limits/stall_cnt
+Date: Jan 2024
+KernelVersion: 6.9
+Contact: netdev@vger.kernel.org
+Description:
+ Number of detected Tx completion stalls.
+
+What: /sys/class/net/<iface>/queues/tx-<queue>/byte_queue_limits/stall_max
+Date: Jan 2024
+KernelVersion: 6.9
+Contact: netdev@vger.kernel.org
+Description:
+ Longest detected Tx completion stall. Write 0 to clear.
diff --git a/Documentation/ABI/testing/sysfs-class-net-statistics b/Documentation/ABI/testing/sysfs-class-net-statistics
index 55db27815361..53e508c6936a 100644
--- a/Documentation/ABI/testing/sysfs-class-net-statistics
+++ b/Documentation/ABI/testing/sysfs-class-net-statistics
@@ -1,4 +1,4 @@
-What: /sys/class/<iface>/statistics/collisions
+What: /sys/class/net/<iface>/statistics/collisions
Date: April 2005
KernelVersion: 2.6.12
Contact: netdev@vger.kernel.org
@@ -6,7 +6,7 @@ Description:
Indicates the number of collisions seen by this network device.
This value might not be relevant with all MAC layers.
-What: /sys/class/<iface>/statistics/multicast
+What: /sys/class/net/<iface>/statistics/multicast
Date: April 2005
KernelVersion: 2.6.12
Contact: netdev@vger.kernel.org
@@ -14,7 +14,7 @@ Description:
Indicates the number of multicast packets received by this
network device.
-What: /sys/class/<iface>/statistics/rx_bytes
+What: /sys/class/net/<iface>/statistics/rx_bytes
Date: April 2005
KernelVersion: 2.6.12
Contact: netdev@vger.kernel.org
@@ -23,7 +23,7 @@ Description:
See the network driver for the exact meaning of when this
value is incremented.
-What: /sys/class/<iface>/statistics/rx_compressed
+What: /sys/class/net/<iface>/statistics/rx_compressed
Date: April 2005
KernelVersion: 2.6.12
Contact: netdev@vger.kernel.org
@@ -32,7 +32,7 @@ Description:
network device. This value might only be relevant for interfaces
that support packet compression (e.g: PPP).
-What: /sys/class/<iface>/statistics/rx_crc_errors
+What: /sys/class/net/<iface>/statistics/rx_crc_errors
Date: April 2005
KernelVersion: 2.6.12
Contact: netdev@vger.kernel.org
@@ -41,7 +41,7 @@ Description:
by this network device. Note that the specific meaning might
depend on the MAC layer used by the interface.
-What: /sys/class/<iface>/statistics/rx_dropped
+What: /sys/class/net/<iface>/statistics/rx_dropped
Date: April 2005
KernelVersion: 2.6.12
Contact: netdev@vger.kernel.org
@@ -51,7 +51,7 @@ Description:
packet processing. See the network driver for the exact
meaning of this value.
-What: /sys/class/<iface>/statistics/rx_errors
+What: /sys/class/net/<iface>/statistics/rx_errors
Date: April 2005
KernelVersion: 2.6.12
Contact: netdev@vger.kernel.org
@@ -59,7 +59,7 @@ Description:
Indicates the number of receive errors on this network device.
See the network driver for the exact meaning of this value.
-What: /sys/class/<iface>/statistics/rx_fifo_errors
+What: /sys/class/net/<iface>/statistics/rx_fifo_errors
Date: April 2005
KernelVersion: 2.6.12
Contact: netdev@vger.kernel.org
@@ -68,7 +68,7 @@ Description:
network device. See the network driver for the exact
meaning of this value.
-What: /sys/class/<iface>/statistics/rx_frame_errors
+What: /sys/class/net/<iface>/statistics/rx_frame_errors
Date: April 2005
KernelVersion: 2.6.12
Contact: netdev@vger.kernel.org
@@ -78,7 +78,7 @@ Description:
on the MAC layer protocol used. See the network driver for
the exact meaning of this value.
-What: /sys/class/<iface>/statistics/rx_length_errors
+What: /sys/class/net/<iface>/statistics/rx_length_errors
Date: April 2005
KernelVersion: 2.6.12
Contact: netdev@vger.kernel.org
@@ -87,7 +87,7 @@ Description:
error, oversized or undersized. See the network driver for the
exact meaning of this value.
-What: /sys/class/<iface>/statistics/rx_missed_errors
+What: /sys/class/net/<iface>/statistics/rx_missed_errors
Date: April 2005
KernelVersion: 2.6.12
Contact: netdev@vger.kernel.org
@@ -96,7 +96,7 @@ Description:
due to lack of capacity in the receive side. See the network
driver for the exact meaning of this value.
-What: /sys/class/<iface>/statistics/rx_nohandler
+What: /sys/class/net/<iface>/statistics/rx_nohandler
Date: February 2016
KernelVersion: 4.6
Contact: netdev@vger.kernel.org
@@ -104,7 +104,7 @@ Description:
Indicates the number of received packets that were dropped on
an inactive device by the network core.
-What: /sys/class/<iface>/statistics/rx_over_errors
+What: /sys/class/net/<iface>/statistics/rx_over_errors
Date: April 2005
KernelVersion: 2.6.12
Contact: netdev@vger.kernel.org
@@ -114,7 +114,7 @@ Description:
(e.g: larger than MTU). See the network driver for the exact
meaning of this value.
-What: /sys/class/<iface>/statistics/rx_packets
+What: /sys/class/net/<iface>/statistics/rx_packets
Date: April 2005
KernelVersion: 2.6.12
Contact: netdev@vger.kernel.org
@@ -122,7 +122,7 @@ Description:
Indicates the total number of good packets received by this
network device.
-What: /sys/class/<iface>/statistics/tx_aborted_errors
+What: /sys/class/net/<iface>/statistics/tx_aborted_errors
Date: April 2005
KernelVersion: 2.6.12
Contact: netdev@vger.kernel.org
@@ -132,7 +132,7 @@ Description:
a medium collision). See the network driver for the exact
meaning of this value.
-What: /sys/class/<iface>/statistics/tx_bytes
+What: /sys/class/net/<iface>/statistics/tx_bytes
Date: April 2005
KernelVersion: 2.6.12
Contact: netdev@vger.kernel.org
@@ -143,7 +143,7 @@ Description:
transmitted packets or all packets that have been queued for
transmission.
-What: /sys/class/<iface>/statistics/tx_carrier_errors
+What: /sys/class/net/<iface>/statistics/tx_carrier_errors
Date: April 2005
KernelVersion: 2.6.12
Contact: netdev@vger.kernel.org
@@ -152,7 +152,7 @@ Description:
because of carrier errors (e.g: physical link down). See the
network driver for the exact meaning of this value.
-What: /sys/class/<iface>/statistics/tx_compressed
+What: /sys/class/net/<iface>/statistics/tx_compressed
Date: April 2005
KernelVersion: 2.6.12
Contact: netdev@vger.kernel.org
@@ -161,7 +161,7 @@ Description:
this might only be relevant for devices that support
compression (e.g: PPP).
-What: /sys/class/<iface>/statistics/tx_dropped
+What: /sys/class/net/<iface>/statistics/tx_dropped
Date: April 2005
KernelVersion: 2.6.12
Contact: netdev@vger.kernel.org
@@ -170,7 +170,7 @@ Description:
See the driver for the exact reasons as to why the packets were
dropped.
-What: /sys/class/<iface>/statistics/tx_errors
+What: /sys/class/net/<iface>/statistics/tx_errors
Date: April 2005
KernelVersion: 2.6.12
Contact: netdev@vger.kernel.org
@@ -179,7 +179,7 @@ Description:
a network device. See the driver for the exact reasons as to
why the packets were dropped.
-What: /sys/class/<iface>/statistics/tx_fifo_errors
+What: /sys/class/net/<iface>/statistics/tx_fifo_errors
Date: April 2005
KernelVersion: 2.6.12
Contact: netdev@vger.kernel.org
@@ -188,7 +188,7 @@ Description:
FIFO error. See the driver for the exact reasons as to why the
packets were dropped.
-What: /sys/class/<iface>/statistics/tx_heartbeat_errors
+What: /sys/class/net/<iface>/statistics/tx_heartbeat_errors
Date: April 2005
KernelVersion: 2.6.12
Contact: netdev@vger.kernel.org
@@ -197,7 +197,7 @@ Description:
reported as heartbeat errors. See the driver for the exact
reasons as to why the packets were dropped.
-What: /sys/class/<iface>/statistics/tx_packets
+What: /sys/class/net/<iface>/statistics/tx_packets
Date: April 2005
KernelVersion: 2.6.12
Contact: netdev@vger.kernel.org
@@ -206,7 +206,7 @@ Description:
device. See the driver for whether this reports the number of all
attempted or successful transmissions.
-What: /sys/class/<iface>/statistics/tx_window_errors
+What: /sys/class/net/<iface>/statistics/tx_window_errors
Date: April 2005
KernelVersion: 2.6.12
Contact: netdev@vger.kernel.org
diff --git a/Documentation/ABI/testing/sysfs-class-pktcdvd b/Documentation/ABI/testing/sysfs-class-pktcdvd
deleted file mode 100644
index ba1ce626591d..000000000000
--- a/Documentation/ABI/testing/sysfs-class-pktcdvd
+++ /dev/null
@@ -1,97 +0,0 @@
-sysfs interface
----------------
-The pktcdvd module (packet writing driver) creates the following files in the
-sysfs: (<devid> is in the format major:minor)
-
-What: /sys/class/pktcdvd/add
-What: /sys/class/pktcdvd/remove
-What: /sys/class/pktcdvd/device_map
-Date: Oct. 2006
-KernelVersion: 2.6.20
-Contact: Thomas Maier <balagi@justmail.de>
-Description:
-
- ========== ==============================================
- add (WO) Write a block device id (major:minor) to
- create a new pktcdvd device and map it to the
- block device.
-
- remove (WO) Write the pktcdvd device id (major:minor)
- to remove the pktcdvd device.
-
- device_map (RO) Shows the device mapping in format:
- pktcdvd[0-7] <pktdevid> <blkdevid>
- ========== ==============================================
-
-
-What: /sys/class/pktcdvd/pktcdvd[0-7]/dev
-What: /sys/class/pktcdvd/pktcdvd[0-7]/uevent
-Date: Oct. 2006
-KernelVersion: 2.6.20
-Contact: Thomas Maier <balagi@justmail.de>
-Description:
- dev: (RO) Device id
-
- uevent: (WO) To send a uevent
-
-
-What: /sys/class/pktcdvd/pktcdvd[0-7]/stat/packets_started
-What: /sys/class/pktcdvd/pktcdvd[0-7]/stat/packets_finished
-What: /sys/class/pktcdvd/pktcdvd[0-7]/stat/kb_written
-What: /sys/class/pktcdvd/pktcdvd[0-7]/stat/kb_read
-What: /sys/class/pktcdvd/pktcdvd[0-7]/stat/kb_read_gather
-What: /sys/class/pktcdvd/pktcdvd[0-7]/stat/reset
-Date: Oct. 2006
-KernelVersion: 2.6.20
-Contact: Thomas Maier <balagi@justmail.de>
-Description:
- packets_started: (RO) Number of started packets.
-
- packets_finished: (RO) Number of finished packets.
-
- kb_written: (RO) kBytes written.
-
- kb_read: (RO) kBytes read.
-
- kb_read_gather: (RO) kBytes read to fill write packets.
-
- reset: (WO) Write any value to it to reset
- pktcdvd device statistic values, like
- bytes read/written.
-
-
-What: /sys/class/pktcdvd/pktcdvd[0-7]/write_queue/size
-What: /sys/class/pktcdvd/pktcdvd[0-7]/write_queue/congestion_off
-What: /sys/class/pktcdvd/pktcdvd[0-7]/write_queue/congestion_on
-Date: Oct. 2006
-KernelVersion: 2.6.20
-Contact: Thomas Maier <balagi@justmail.de>
-Description:
- ============== ================================================
- size (RO) Contains the size of the bio write queue.
-
- congestion_off (RW) If bio write queue size is below this mark,
- accept new bio requests from the block layer.
-
- congestion_on (RW) If bio write queue size is higher as this
- mark, do no longer accept bio write requests
- from the block layer and wait till the pktcdvd
- device has processed enough bio's so that bio
- write queue size is below congestion off mark.
- A value of <= 0 disables congestion control.
- ============== ================================================
-
-
-Example:
---------
-To use the pktcdvd sysfs interface directly, you can do::
-
- # create a new pktcdvd device mapped to /dev/hdc
- echo "22:0" >/sys/class/pktcdvd/add
- cat /sys/class/pktcdvd/device_map
- # assuming device pktcdvd0 was created, look at stat's
- cat /sys/class/pktcdvd/pktcdvd0/stat/kb_written
- # print the device id of the mapped block device
- fgrep pktcdvd0 /sys/class/pktcdvd/device_map
- # remove device, using pktcdvd0 device id 253:0
- echo "253:0" >/sys/class/pktcdvd/remove
diff --git a/Documentation/ABI/testing/sysfs-class-platform-profile b/Documentation/ABI/testing/sysfs-class-platform-profile
new file mode 100644
index 000000000000..fcab26894ec3
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-platform-profile
@@ -0,0 +1,50 @@
+What: /sys/class/platform-profile/platform-profile-X/name
+Date: March 2025
+KernelVersion: 6.14
+Description: Name of the class device given by the driver.
+
+ RO
+
+What: /sys/class/platform-profile/platform-profile-X/choices
+Date: March 2025
+KernelVersion: 6.14
+Description: This file contains a space-separated list of profiles supported
+ for this device.
+
+ Drivers must use the following standard profile-names:
+
+ ==================== ========================================
+ low-power Low power consumption
+ cool Cooler operation
+ quiet Quieter operation
+ balanced Balance between low power consumption
+ and performance
+ balanced-performance Balance between performance and low
+ power consumption with a slight bias
+ towards performance
+ performance High performance operation
+ max-power Higher performance operation that may exceed
+ internal battery draw limits when on AC power
+ custom Driver defined custom profile
+ ==================== ========================================
+
+ RO
+
+What: /sys/class/platform-profile/platform-profile-X/profile
+Date: March 2025
+KernelVersion: 6.14
+Description: Reading this file gives the current selected profile for this
+ device. Writing this file with one of the strings from
+ platform_profile_choices changes the profile to the new value.
+
+ This file can be monitored for changes by polling for POLLPRI,
+ POLLPRI will be signaled on any changes, independent of those
+ changes coming from a userspace write; or coming from another
+ source such as e.g. a hotkey triggered profile change handled
+ either directly by the embedded-controller or fully handled
+ inside the kernel.
+
+ This file may also emit the string 'custom' to indicate
+ that the driver is using a driver defined custom profile.
+
+ RW
diff --git a/Documentation/ABI/testing/sysfs-class-power b/Documentation/ABI/testing/sysfs-class-power
index 7c81f0a25a48..4b21d5d23251 100644
--- a/Documentation/ABI/testing/sysfs-class-power
+++ b/Documentation/ABI/testing/sysfs-class-power
@@ -377,24 +377,60 @@ What: /sys/class/power_supply/<supply_name>/charge_type
Date: July 2009
Contact: linux-pm@vger.kernel.org
Description:
- Represents the type of charging currently being applied to the
- battery. "Trickle", "Fast", and "Standard" all mean different
- charging speeds. "Adaptive" means that the charger uses some
- algorithm to adjust the charge rate dynamically, without
- any user configuration required. "Custom" means that the charger
- uses the charge_control_* properties as configuration for some
- different algorithm. "Long Life" means the charger reduces its
- charging rate in order to prolong the battery health. "Bypass"
- means the charger bypasses the charging path around the
- integrated converter allowing for a "smart" wall adaptor to
- perform the power conversion externally.
+ Select the charging algorithm to use for a battery.
+
+ Standard:
+ Fully charge the battery at a moderate rate.
+ Fast:
+ Quickly charge the battery using fast-charge
+ technology. This is typically harder on the battery
+ than standard charging and may lower its lifespan.
+ Trickle:
+ Users who primarily operate the system while
+ plugged into an external power source can extend
+ battery life with this mode. Vendor tooling may
+ call this "Primarily AC Use".
+ Adaptive:
+ Automatically optimize battery charge rate based
+ on typical usage pattern.
+ Custom:
+ Use the charge_control_* properties to determine
+ when to start and stop charging. Advanced users
+ can use this to drastically extend battery life.
+ Long Life:
+ The charger reduces its charging rate in order to
+ prolong the battery health.
+ Bypass:
+ The charger bypasses the charging path around the
+ integrated converter allowing for a "smart" wall
+ adaptor to perform the power conversion externally.
Access: Read, Write
+ Reading this returns the current active value, e.g. 'Standard'.
+ Check charge_types to get the values supported by the battery.
+
Valid values:
"Unknown", "N/A", "Trickle", "Fast", "Standard",
"Adaptive", "Custom", "Long Life", "Bypass"
+What: /sys/class/power_supply/<supply_name>/charge_types
+Date: December 2024
+Contact: linux-pm@vger.kernel.org
+Description:
+ Identical to charge_type but reading returns a list of supported
+ charge-types with the currently active type surrounded by square
+ brackets, e.g.: "Fast [Standard] Long_Life".
+
+ power_supply class devices may support both charge_type and
+ charge_types for backward compatibility. In this case both will
+ always have the same active value and the active value can be
+ changed by writing either property.
+
+ Note charge-types which contain a space such as "Long Life" will
+ have the space replaced by a '_' resulting in e.g. "Long_Life".
+ When writing charge-types both variants are accepted.
+
What: /sys/class/power_supply/<supply_name>/charge_term_current
Date: July 2014
Contact: linux-pm@vger.kernel.org
@@ -417,10 +453,10 @@ Description:
Valid values:
"Unknown", "Good", "Overheat", "Dead",
- "Over voltage", "Unspecified failure", "Cold",
+ "Over voltage", "Under voltage", "Unspecified failure", "Cold",
"Watchdog timer expire", "Safety timer expire",
"Over current", "Calibration required", "Warm",
- "Cool", "Hot", "No battery"
+ "Cool", "Hot", "No battery", "Blown fuse", "Cell imbalance"
What: /sys/class/power_supply/<supply_name>/precharge_current
Date: June 2017
@@ -472,11 +508,12 @@ Description:
Access: Read, Write
Valid values:
- ================ ====================================
- auto: Charge normally, respect thresholds
- inhibit-charge: Do not charge while AC is attached
- force-discharge: Force discharge while AC is attached
- ================ ====================================
+ ===================== ========================================
+ auto: Charge normally, respect thresholds
+ inhibit-charge: Do not charge while AC is attached
+ inhibit-charge-awake: inhibit-charge only when device is awake
+ force-discharge: Force discharge while AC is attached
+ ===================== ========================================
What: /sys/class/power_supply/<supply_name>/technology
Date: May 2007
@@ -516,6 +553,43 @@ Description:
Integer > 0: representing full cycles
Integer = 0: cycle_count info is not available
+What: /sys/class/power_supply/<supply_name>/internal_resistance
+Date: August 2025
+Contact: linux-arm-msm@vger.kernel.org
+Description:
+ Represent the battery's internal resistance, often referred
+ to as Equivalent Series Resistance (ESR). It is a dynamic
+ parameter that reflects the opposition to current flow within
+ the cell. It is not a fixed value but varies significantly
+ based on several operational conditions, including battery
+ state of charge (SoC), temperature, and whether the battery
+ is in a charging or discharging state.
+
+ Access: Read
+
+ Valid values: Represented in microohms
+
+What: /sys/class/power_supply/<supply_name>/state_of_health
+Date: August 2025
+Contact: linux-arm-msm@vger.kernel.org
+Description:
+ The state_of_health parameter quantifies the overall condition
+ of a battery as a percentage, reflecting its ability to deliver
+ rated performance relative to its original specifications. It is
+ dynamically computed using a combination of learned capacity
+ and impedance-based degradation indicators, both of which evolve
+ over the battery's lifecycle.
+ Note that the exact algorithms are kept secret by most battery
+ vendors and the value from different battery vendors cannot be
+ compared with each other as there is no vendor-agnostic definition
+ of "performance". Also this usually cannot be used for any
+ calculations (i.e. this is not the factor between charge_full and
+ charge_full_design).
+
+ Access: Read
+
+ Valid values: 0 - 100 (percent)
+
**USB Properties**
What: /sys/class/power_supply/<supply_name>/input_current_limit
@@ -592,7 +666,12 @@ Description:
the supply, for example it can show if USB-PD capable source
is attached.
- Access: Read-Only
+ Access: For power-supplies which consume USB power such
+ as battery charger chips, this indicates the type of
+ the connected USB power source and is Read-Only.
+
+ For power-supplies which act as a USB power-source such as
+ e.g. the UCS1002 USB Port Power Controller this is writable.
Valid values:
"Unknown", "SDP", "DCP", "CDP", "ACA", "C", "PD",
@@ -772,3 +851,55 @@ Description:
Access: Read
Valid values: 1-31
+
+What: /sys/class/power_supply/<supply_name>/extensions/<extension_name>
+Date: March 2025
+Contact: linux-pm@vger.kernel.org
+Description:
+ Reports the extensions registered to the power supply.
+ Each entry is a link to the device which registered the extension.
+
+ Access: Read
+
+What: /sys/class/power_supply/max8971-charger/fast_charge_timer
+Date: May 2025
+KernelVersion: 6.15.0
+Contact: Svyatoslav Ryhel <clamor95@gmail.com>
+Description:
+ This entry shows and sets the maximum time the max8971
+ charger operates in fast-charge mode. When the timer expires
+ the device will terminate fast-charge mode (charging current
+ will drop to 0 A) and will trigger interrupt.
+
+ Valid values:
+
+ - 4 - 10 (hours), step by 1
+ - 0: disabled.
+
+What: /sys/class/power_supply/max8971-charger/top_off_threshold_current
+Date: May 2025
+KernelVersion: 6.15.0
+Contact: Svyatoslav Ryhel <clamor95@gmail.com>
+Description:
+ This entry shows and sets the charging current threshold for
+ entering top-off charging mode. When charging current in fast
+ charge mode drops below this value, the charger will trigger
+ interrupt and start top-off charging mode.
+
+ Valid values:
+
+ - 50000 - 200000 (microamps), step by 50000 (rounded down)
+
+What: /sys/class/power_supply/max8971-charger/top_off_timer
+Date: May 2025
+KernelVersion: 6.15.0
+Contact: Svyatoslav Ryhel <clamor95@gmail.com>
+Description:
+ This entry shows and sets the maximum time the max8971
+ charger operates in top-off charge mode. When the timer expires
+ the device will terminate top-off charge mode (charging current
+ will drop to 0 A) and will trigger interrupt.
+
+ Valid values:
+
+ - 0 - 70 (minutes), step by 10 (rounded down)
diff --git a/Documentation/ABI/testing/sysfs-class-power-gaokun b/Documentation/ABI/testing/sysfs-class-power-gaokun
new file mode 100644
index 000000000000..0633aed7b355
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-power-gaokun
@@ -0,0 +1,27 @@
+What: /sys/class/power_supply/gaokun-ec-battery/smart_charge_delay
+Date: March 2025
+KernelVersion: 6.15
+Contact: Pengyu Luo <mitltlatltl@gmail.com>
+Description:
+ This entry allows configuration of smart charging delay.
+
+ Smart charging behavior: when the power adapter is connected
+ for delay hours, battery charging will follow the rules of
+ charge_control_start_threshold and charge_control_end_threshold.
+ For more information about charge control, please refer to
+ sysfs-class-power.
+
+ Access: Read, Write
+
+ Valid values: In hours (non-negative)
+
+What: /sys/class/power_supply/gaokun-ec-battery/battery_adaptive_charge
+Date: March 2025
+KernelVersion: 6.15
+Contact: Pengyu Luo <mitltlatltl@gmail.com>
+Description:
+ This entry allows enabling battery adaptive charging.
+
+ Access: Read, Write
+
+ Valid values: 0 (disabled) or 1 (enabled)
diff --git a/Documentation/ABI/testing/sysfs-class-power-max1720x b/Documentation/ABI/testing/sysfs-class-power-max1720x
new file mode 100644
index 000000000000..7d895bfda9ce
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-power-max1720x
@@ -0,0 +1,32 @@
+What: /sys/class/power_supply/max1720x/temp_ain1
+Date: January 2025
+KernelVersion: 6.14
+Contact: Dimitri Fedrau <dimitri.fedrau@liebherr.com>
+Description:
+ Reports the current temperature reading from AIN1 thermistor.
+
+ Access: Read
+
+ Valid values: Represented in 1/10 Degrees Celsius
+
+What: /sys/class/power_supply/max1720x/temp_ain2
+Date: January 2025
+KernelVersion: 6.14
+Contact: Dimitri Fedrau <dimitri.fedrau@liebherr.com>
+Description:
+ Reports the current temperature reading from AIN2 thermistor.
+
+ Access: Read
+
+ Valid values: Represented in 1/10 Degrees Celsius
+
+What: /sys/class/power_supply/max1720x/temp_int
+Date: January 2025
+KernelVersion: 6.14
+Contact: Dimitri Fedrau <dimitri.fedrau@liebherr.com>
+Description:
+ Reports the current temperature reading from internal die.
+
+ Access: Read
+
+ Valid values: Represented in 1/10 Degrees Celsius
diff --git a/Documentation/ABI/testing/sysfs-class-power-rt9756 b/Documentation/ABI/testing/sysfs-class-power-rt9756
new file mode 100644
index 000000000000..c4d6c2b4715d
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-power-rt9756
@@ -0,0 +1,30 @@
+What: /sys/class/power_supply/rt9756-*/watchdog_timer
+Date: Dec 2025
+KernelVersion: 6.19
+Contact: ChiYuan Huang <cy_huang@richtek.com>
+Description:
+ This entry shows and sets the watchdog timer when rt9756 charger
+ operates in charging mode. When the timer expires, the device
+ will disable the charging. To prevent the timer expires, any
+ host communication can make the timer restarted.
+
+ Access: Read, Write
+
+ Valid values:
+ - 500, 1000, 5000, 30000, 40000, 80000, 128000 or 255000 (milliseconds),
+ - 0: disabled
+
+What: /sys/class/power_supply/rt9756-*/operation_mode
+Date: Dec 2025
+KernelVersion: 6.19
+Contact: ChiYuan Huang <cy_huang@richtek.com>
+Description:
+ This entry shows and set the operation mode when rt9756 charger
+ operates in charging phase. If 'bypass' mode is used, internal
+ path will connect vbus directly to vbat. Else, default 'div2'
+ mode for the switch-cap charging.
+
+ Access: Read, Write
+
+ Valid values:
+ - 'bypass' or 'div2'
diff --git a/Documentation/ABI/testing/sysfs-class-power-wilco b/Documentation/ABI/testing/sysfs-class-power-wilco
index 82af180fcaab..083c4641b4c4 100644
--- a/Documentation/ABI/testing/sysfs-class-power-wilco
+++ b/Documentation/ABI/testing/sysfs-class-power-wilco
@@ -22,7 +22,7 @@ Description:
Long Life:
Customized charge rate for last longer battery life.
On Wilco device this mode is pre-configured in the factory
- through EC's private PID. Swiching to a different mode will
+ through EC's private PID. Switching to a different mode will
be denied by Wilco EC when Long Life mode is enabled.
What: /sys/class/power_supply/wilco-charger/charge_control_start_threshold
diff --git a/Documentation/ABI/testing/sysfs-class-remoteproc b/Documentation/ABI/testing/sysfs-class-remoteproc
index 0c9ee55098b8..b2b8e2db2503 100644
--- a/Documentation/ABI/testing/sysfs-class-remoteproc
+++ b/Documentation/ABI/testing/sysfs-class-remoteproc
@@ -81,7 +81,7 @@ Description: Remote processor coredump configuration
collected userspace will directly read from the remote
processor's device memory. Extra buffer will not be used to
copy the dump. Also recovery process will not proceed until
- all data is read by usersapce.
+ all data is read by userspace.
What: /sys/class/remoteproc/.../recovery
Date: July 2020
diff --git a/Documentation/ABI/testing/sysfs-class-tee b/Documentation/ABI/testing/sysfs-class-tee
new file mode 100644
index 000000000000..c9144d16003e
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-tee
@@ -0,0 +1,15 @@
+What: /sys/class/tee/tee{,priv}X/rpmb_routing_model
+Date: May 2024
+KernelVersion: 6.10
+Contact: op-tee@lists.trustedfirmware.org
+Description:
+ RPMB frames can be routed to the RPMB device via the
+ user-space daemon tee-supplicant or the RPMB subsystem
+ in the kernel. The value "user" means that the driver
+ will route the RPMB frames via user space. Conversely,
+ "kernel" means that the frames are routed via the RPMB
+ subsystem without assistance from tee-supplicant. It
+ should be assumed that RPMB frames are routed via user
+ space if the variable is absent. The primary purpose
+ of this variable is to let systemd know whether
+ tee-supplicant is needed in the early boot with initramfs.
diff --git a/Documentation/ABI/testing/sysfs-class-thermal b/Documentation/ABI/testing/sysfs-class-thermal
index 8eee37982b2a..968d89e15e8e 100644
--- a/Documentation/ABI/testing/sysfs-class-thermal
+++ b/Documentation/ABI/testing/sysfs-class-thermal
@@ -4,7 +4,7 @@ Description:
This is given by thermal zone driver as part of registration.
E.g: "acpitz" indicates it's an ACPI thermal device.
In order to keep it consistent with hwmon sys attribute; this
- shouldbe a short, lowercase string, not containing spaces nor
+ should be a short, lowercase string, not containing spaces nor
dashes.
RO, Required
diff --git a/Documentation/ABI/testing/sysfs-class-tsm b/Documentation/ABI/testing/sysfs-class-tsm
new file mode 100644
index 000000000000..6fc1a5ac6da1
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-tsm
@@ -0,0 +1,19 @@
+What: /sys/class/tsm/tsmN
+Contact: linux-coco@lists.linux.dev
+Description:
+ "tsmN" is a device that represents the generic attributes of a
+ platform TEE Security Manager. It is typically a child of a
+ platform enumerated TSM device. /sys/class/tsm/tsmN/uevent
+ signals when the PCI layer is able to support establishment of
+ link encryption and other device-security features coordinated
+ through a platform tsm.
+
+What: /sys/class/tsm/tsmN/streamH.R.E
+Contact: linux-pci@vger.kernel.org
+Description:
+ (RO) When a host bridge has established a secure connection via
+ the platform TSM, symlink appears. The primary function of this
+ is have a system global review of TSM resource consumption
+ across host bridges. The link points to the endpoint PCI device
+ and matches the same link published by the host bridge. See
+ Documentation/ABI/testing/sysfs-devices-pci-host-bridge.
diff --git a/Documentation/ABI/testing/sysfs-class-typec b/Documentation/ABI/testing/sysfs-class-typec
index 281b995beb05..38e101c17a00 100644
--- a/Documentation/ABI/testing/sysfs-class-typec
+++ b/Documentation/ABI/testing/sysfs-class-typec
@@ -149,6 +149,19 @@ Description:
advertise to the partner. The currently used capabilities are in
brackets. Selection happens by writing to the file.
+What: /sys/class/typec/<port>/usb_capability
+Date: November 2024
+Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com>
+Description: Lists the supported USB Modes. The default USB mode that is used
+ next time with the Enter_USB Message is in brackets. The default
+ mode can be changed by writing to the file when supported by the
+ driver.
+
+ Valid values:
+ - usb2 (USB 2.0)
+ - usb3 (USB 3.2)
+ - usb4 (USB4)
+
USB Type-C partner devices (eg. /sys/class/typec/port0-partner/)
What: /sys/class/typec/<port>-partner/accessory_mode
@@ -220,6 +233,20 @@ Description:
directory exists, it will have an attribute file for every VDO
in Discover Identity command result.
+What: /sys/class/typec/<port>-partner/usb_mode
+Date: November 2024
+Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com>
+Description: The USB Modes that the partner device supports. The active mode
+ is displayed in brackets. The active USB mode can be changed by
+ writing to this file when the port driver is able to send Data
+ Reset Message to the partner. That requires USB Power Delivery
+ contract between the partner and the port.
+
+ Valid values:
+ - usb2 (USB 2.0)
+ - usb3 (USB 3.2)
+ - usb4 (USB4)
+
USB Type-C cable devices (eg. /sys/class/typec/port0-cable/)
Note: Electronically Marked Cables will have a device also for one cable plug
diff --git a/Documentation/ABI/testing/sysfs-class-usb_power_delivery b/Documentation/ABI/testing/sysfs-class-usb_power_delivery
index 1bf9d1d7902c..c754458a527e 100644
--- a/Documentation/ABI/testing/sysfs-class-usb_power_delivery
+++ b/Documentation/ABI/testing/sysfs-class-usb_power_delivery
@@ -124,6 +124,13 @@ Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Description:
The voltage the supply supports in millivolts.
+What: /sys/class/usb_power_delivery/.../source-capabilities/<position>:fixed_supply/peak_current
+Date: October 2023
+Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com>
+Description:
+ This file shows the value of the Fixed Power Source Peak Current
+ Capability field.
+
What: /sys/class/usb_power_delivery/.../source-capabilities/<position>:fixed_supply/maximum_current
Date: May 2022
Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com>
@@ -247,3 +254,31 @@ Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Description:
The PPS Power Limited bit indicates whether or not the source
supply will exceed the rated output power if requested.
+
+Standard Power Range (SPR) Adjustable Voltage Supplies
+
+What: /sys/class/usb_power_delivery/.../<capability>/<position>:spr_adjustable_voltage_supply
+Date: Oct 2025
+Contact: Badhri Jagan Sridharan <badhri@google.com>
+Description:
+ Adjustable Voltage Supply (AVS) Augmented PDO (APDO).
+
+What: /sys/class/usb_power_delivery/.../<capability>/<position>:spr_adjustable_voltage_supply/maximum_current_9V_to_15V
+Date: Oct 2025
+Contact: Badhri Jagan Sridharan <badhri@google.com>
+Description:
+ Maximum Current for 9V to 15V range in milliamperes.
+
+What: /sys/class/usb_power_delivery/.../<capability>/<position>:spr_adjustable_voltage_supply/maximum_current_15V_to_20V
+Date: Oct 2025
+Contact: Badhri Jagan Sridharan <badhri@google.com>
+Description:
+ Maximum Current for greater than 15V till 20V range in
+ milliamperes.
+
+What: /sys/class/usb_power_delivery/.../<capability>/<position>:spr_adjustable_voltage_supply/peak_current
+Date: Oct 2025
+Contact: Badhri Jagan Sridharan <badhri@google.com>
+Description:
+ This file shows the value of the Adjustable Voltage Supply Peak Current
+ Capability field.
diff --git a/Documentation/ABI/testing/sysfs-class-usb_role b/Documentation/ABI/testing/sysfs-class-usb_role
index 3b810a425a52..9fab3f06679e 100644
--- a/Documentation/ABI/testing/sysfs-class-usb_role
+++ b/Documentation/ABI/testing/sysfs-class-usb_role
@@ -19,3 +19,9 @@ Description:
- none
- host
- device
+
+What: /sys/class/usb_role/<switch>/connector
+Date: Feb 2024
+Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com>
+Description:
+ Optional symlink to the USB Type-C connector.
diff --git a/Documentation/ABI/testing/sysfs-class-uwb_rc b/Documentation/ABI/testing/sysfs-class-uwb_rc
deleted file mode 100644
index a7ea169dc4eb..000000000000
--- a/Documentation/ABI/testing/sysfs-class-uwb_rc
+++ /dev/null
@@ -1,156 +0,0 @@
-What: /sys/class/uwb_rc
-Date: July 2008
-KernelVersion: 2.6.27
-Contact: linux-usb@vger.kernel.org
-Description:
- Interfaces for WiMedia Ultra Wideband Common Radio
- Platform (UWB) radio controllers.
-
- Familiarity with the ECMA-368 'High Rate Ultra
- Wideband MAC and PHY Specification' is assumed.
-
-What: /sys/class/uwb_rc/beacon_timeout_ms
-Date: July 2008
-KernelVersion: 2.6.27
-Description:
- If no beacons are received from a device for at least
- this time, the device will be considered to have gone
- and it will be removed. The default is 3 superframes
- (~197 ms) as required by the specification.
-
-What: /sys/class/uwb_rc/uwb<N>/
-Date: July 2008
-KernelVersion: 2.6.27
-Contact: linux-usb@vger.kernel.org
-Description:
- An individual UWB radio controller.
-
-What: /sys/class/uwb_rc/uwb<N>/beacon
-Date: July 2008
-KernelVersion: 2.6.27
-Contact: linux-usb@vger.kernel.org
-Description:
- Write:
-
- <channel>
-
- to force a specific channel to be used when beaconing,
- or, if <channel> is -1, to prohibit beaconing. If
- <channel> is 0, then the default channel selection
- algorithm will be used. Valid channels depends on the
- radio controller's supported band groups.
-
- Reading returns the currently active channel, or -1 if
- the radio controller is not beaconing.
-
-What: /sys/class/uwb_rc/uwb<N>/ASIE
-Date: August 2014
-KernelVersion: 3.18
-Contact: linux-usb@vger.kernel.org
-Description:
-
- The application-specific information element (ASIE)
- included in this device's beacon, in space separated
- hex octets.
-
- Reading returns the current ASIE. Writing replaces
- the current ASIE with the one written.
-
-What: /sys/class/uwb_rc/uwb<N>/scan
-Date: July 2008
-KernelVersion: 2.6.27
-Contact: linux-usb@vger.kernel.org
-Description:
- Write:
-
- <channel> <type> [<bpst offset>]
-
- to start (or stop) scanning on a channel. <type> is one of:
-
- == =======================================
- 0 scan
- 1 scan outside BP
- 2 scan while inactive
- 3 scanning disabled
- 4 scan (with start time of <bpst offset>)
- == =======================================
-
-What: /sys/class/uwb_rc/uwb<N>/mac_address
-Date: July 2008
-KernelVersion: 2.6.27
-Contact: linux-usb@vger.kernel.org
-Description:
- The EUI-48, in colon-separated hex octets, for this
- radio controller. A write will change the radio
- controller's EUI-48 but only do so while the device is
- not beaconing or scanning.
-
-What: /sys/class/uwb_rc/uwb<N>/wusbhc
-Date: July 2008
-KernelVersion: 2.6.27
-Contact: linux-usb@vger.kernel.org
-Description:
- A symlink to the device (if any) of the WUSB Host
- Controller PAL using this radio controller.
-
-What: /sys/class/uwb_rc/uwb<N>/<EUI-48>/
-Date: July 2008
-KernelVersion: 2.6.27
-Contact: linux-usb@vger.kernel.org
-Description:
- A neighbour UWB device that has either been detected
- as part of a scan or is a member of the radio
- controllers beacon group.
-
-What: /sys/class/uwb_rc/uwb<N>/<EUI-48>/BPST
-Date: July 2008
-KernelVersion: 2.6.27
-Contact: linux-usb@vger.kernel.org
-Description:
- The time (using the radio controllers internal 1 ms
- interval superframe timer) of the last beacon from
- this device was received.
-
-What: /sys/class/uwb_rc/uwb<N>/<EUI-48>/DevAddr
-Date: July 2008
-KernelVersion: 2.6.27
-Contact: linux-usb@vger.kernel.org
-Description:
- The current DevAddr of this device in colon separated
- hex octets.
-
-What: /sys/class/uwb_rc/uwb<N>/<EUI-48>/EUI_48
-Date: July 2008
-KernelVersion: 2.6.27
-Contact: linux-usb@vger.kernel.org
-Description:
-
- The EUI-48 of this device in colon separated hex
- octets.
-
-What: /sys/class/uwb_rc/uwb<N>/<EUI-48>/IEs
-Date: July 2008
-KernelVersion: 2.6.27
-Contact: linux-usb@vger.kernel.org
-Description:
- The latest IEs included in this device's beacon, in
- space separated hex octets with one IE per line.
-
-What: /sys/class/uwb_rc/uwb<N>/<EUI-48>/LQE
-Date: July 2008
-KernelVersion: 2.6.27
-Contact: linux-usb@vger.kernel.org
-Description:
- Link Quality Estimate - the Signal to Noise Ratio
- (SNR) of all packets received from this device in dB.
- This gives an estimate on a suitable PHY rate. Refer
- to [ECMA-368] section 13.3 for more details.
-
-What: /sys/class/uwb_rc/uwb<N>/<EUI-48>/RSSI
-Date: July 2008
-KernelVersion: 2.6.27
-Contact: linux-usb@vger.kernel.org
-Description:
- Received Signal Strength Indication - the strength of
- the received signal in dB. LQE is a more useful
- measure of the radio link quality.
diff --git a/Documentation/ABI/testing/sysfs-class-uwb_rc-wusbhc b/Documentation/ABI/testing/sysfs-class-uwb_rc-wusbhc
deleted file mode 100644
index 55eb55cac92e..000000000000
--- a/Documentation/ABI/testing/sysfs-class-uwb_rc-wusbhc
+++ /dev/null
@@ -1,57 +0,0 @@
-What: /sys/class/uwb_rc/uwb<N>/wusbhc/wusb_chid
-Date: July 2008
-KernelVersion: 2.6.27
-Contact: David Vrabel <david.vrabel@csr.com>
-Description:
- Write the CHID (16 space-separated hex octets) for this host controller.
- This starts the host controller, allowing it to accept connection from
- WUSB devices.
-
- Set an all zero CHID to stop the host controller.
-
-What: /sys/class/uwb_rc/uwb<N>/wusbhc/wusb_trust_timeout
-Date: July 2008
-KernelVersion: 2.6.27
-Contact: David Vrabel <david.vrabel@csr.com>
-Description:
- Devices that haven't sent a WUSB packet to the host
- within 'wusb_trust_timeout' ms are considered to have
- disconnected and are removed. The default value of
- 4000 ms is the value required by the WUSB
- specification.
-
- Since this relates to security (specifically, the
- lifetime of PTKs and GTKs) it should not be changed
- from the default.
-
-What: /sys/class/uwb_rc/uwb<N>/wusbhc/wusb_phy_rate
-Date: August 2009
-KernelVersion: 2.6.32
-Contact: David Vrabel <david.vrabel@csr.com>
-Description:
- The maximum PHY rate to use for all connected devices.
- This is only of limited use for testing and
- development as the hardware's automatic rate
- adaptation is better then this simple control.
-
- Refer to [ECMA-368] section 10.3.1.1 for the value to
- use.
-
-What: /sys/class/uwb_rc/uwb<N>/wusbhc/wusb_dnts
-Date: June 2013
-KernelVersion: 3.11
-Contact: Thomas Pugliese <thomas.pugliese@gmail.com>
-Description:
- The device notification time slot (DNTS) count and inverval in
- milliseconds that the WUSB host should use. This controls how
- often the devices will have the opportunity to send
- notifications to the host.
-
-What: /sys/class/uwb_rc/uwb<N>/wusbhc/wusb_retry_count
-Date: June 2013
-KernelVersion: 3.11
-Contact: Thomas Pugliese <thomas.pugliese@gmail.com>
-Description:
- The number of retries that the WUSB host should attempt
- before reporting an error for a bus transaction. The range of
- valid values is [0..15], where 0 indicates infinite retries.
diff --git a/Documentation/ABI/testing/sysfs-class-watchdog b/Documentation/ABI/testing/sysfs-class-watchdog
index 94fb74615951..70eabccf0557 100644
--- a/Documentation/ABI/testing/sysfs-class-watchdog
+++ b/Documentation/ABI/testing/sysfs-class-watchdog
@@ -76,7 +76,7 @@ Description:
timeout when the pretimeout interrupt is delivered. Pretimeout
is an optional feature.
-What: /sys/class/watchdog/watchdogn/pretimeout_avaialable_governors
+What: /sys/class/watchdog/watchdogn/pretimeout_available_governors
Date: February 2017
Contact: Wim Van Sebroeck <wim@iguana.be>
Description:
diff --git a/Documentation/ABI/testing/sysfs-devices-hisi_ptt b/Documentation/ABI/testing/sysfs-devices-hisi_ptt
deleted file mode 100644
index 82de6d710266..000000000000
--- a/Documentation/ABI/testing/sysfs-devices-hisi_ptt
+++ /dev/null
@@ -1,61 +0,0 @@
-What: /sys/devices/hisi_ptt<sicl_id>_<core_id>/tune
-Date: October 2022
-KernelVersion: 6.1
-Contact: Yicong Yang <yangyicong@hisilicon.com>
-Description: This directory contains files for tuning the PCIe link
- parameters(events). Each file is named after the event
- of the PCIe link.
-
- See Documentation/trace/hisi-ptt.rst for more information.
-
-What: /sys/devices/hisi_ptt<sicl_id>_<core_id>/tune/qos_tx_cpl
-Date: October 2022
-KernelVersion: 6.1
-Contact: Yicong Yang <yangyicong@hisilicon.com>
-Description: (RW) Controls the weight of Tx completion TLPs, which influence
- the proportion of outbound completion TLPs on the PCIe link.
- The available tune data is [0, 1, 2]. Writing a negative value
- will return an error, and out of range values will be converted
- to 2. The value indicates a probable level of the event.
-
-What: /sys/devices/hisi_ptt<sicl_id>_<core_id>/tune/qos_tx_np
-Date: October 2022
-KernelVersion: 6.1
-Contact: Yicong Yang <yangyicong@hisilicon.com>
-Description: (RW) Controls the weight of Tx non-posted TLPs, which influence
- the proportion of outbound non-posted TLPs on the PCIe link.
- The available tune data is [0, 1, 2]. Writing a negative value
- will return an error, and out of range values will be converted
- to 2. The value indicates a probable level of the event.
-
-What: /sys/devices/hisi_ptt<sicl_id>_<core_id>/tune/qos_tx_p
-Date: October 2022
-KernelVersion: 6.1
-Contact: Yicong Yang <yangyicong@hisilicon.com>
-Description: (RW) Controls the weight of Tx posted TLPs, which influence the
- proportion of outbound posted TLPs on the PCIe link.
- The available tune data is [0, 1, 2]. Writing a negative value
- will return an error, and out of range values will be converted
- to 2. The value indicates a probable level of the event.
-
-What: /sys/devices/hisi_ptt<sicl_id>_<core_id>/tune/rx_alloc_buf_level
-Date: October 2022
-KernelVersion: 6.1
-Contact: Yicong Yang <yangyicong@hisilicon.com>
-Description: (RW) Control the allocated buffer watermark for inbound packets.
- The packets will be stored in the buffer first and then transmitted
- either when the watermark reached or when timed out.
- The available tune data is [0, 1, 2]. Writing a negative value
- will return an error, and out of range values will be converted
- to 2. The value indicates a probable level of the event.
-
-What: /sys/devices/hisi_ptt<sicl_id>_<core_id>/tune/tx_alloc_buf_level
-Date: October 2022
-KernelVersion: 6.1
-Contact: Yicong Yang <yangyicong@hisilicon.com>
-Description: (RW) Control the allocated buffer watermark of outbound packets.
- The packets will be stored in the buffer first and then transmitted
- either when the watermark reached or when timed out.
- The available tune data is [0, 1, 2]. Writing a negative value
- will return an error, and out of range values will be converted
- to 2. The value indicates a probable level of the event.
diff --git a/Documentation/ABI/testing/sysfs-devices-memory b/Documentation/ABI/testing/sysfs-devices-memory
index d8b0f80b9e33..cec65827e602 100644
--- a/Documentation/ABI/testing/sysfs-devices-memory
+++ b/Documentation/ABI/testing/sysfs-devices-memory
@@ -110,3 +110,11 @@ Description:
link is created for memory section 9 on node0.
/sys/devices/system/node/node0/memory9 -> ../../memory/memory9
+
+What: /sys/devices/system/memory/crash_hotplug
+Date: Aug 2023
+Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org>
+Description:
+ (RO) indicates whether or not the kernel updates relevant kexec
+ segments on memory hot un/plug and/or on/offline events, avoiding the
+ need to reload kdump kernel.
diff --git a/Documentation/ABI/testing/sysfs-devices-online b/Documentation/ABI/testing/sysfs-devices-online
index f990026c0740..c3359fec2980 100644
--- a/Documentation/ABI/testing/sysfs-devices-online
+++ b/Documentation/ABI/testing/sysfs-devices-online
@@ -17,4 +17,4 @@ Description:
After a successful execution of the bus type's .offline()
callback the device cannot be used for any purpose until either
it is removed (i.e. device_del() is called for it), or its bus
- type's .online() is exeucted successfully.
+ type's .online() is executed successfully.
diff --git a/Documentation/ABI/testing/sysfs-devices-pci-host-bridge b/Documentation/ABI/testing/sysfs-devices-pci-host-bridge
new file mode 100644
index 000000000000..b91ec3450811
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-devices-pci-host-bridge
@@ -0,0 +1,45 @@
+What: /sys/devices/pciDDDD:BB
+ /sys/devices/.../pciDDDD:BB
+Contact: linux-pci@vger.kernel.org
+Description:
+ A PCI host bridge device parents a PCI bus device topology. PCI
+ controllers may also parent host bridges. The DDDD:BB format
+ conveys the PCI domain (ACPI segment) number and root bus number
+ (in hexadecimal) of the host bridge. Note that the domain number
+ may be larger than the 16-bits that the "DDDD" format implies
+ for emulated host-bridges.
+
+What: pciDDDD:BB/firmware_node
+Contact: linux-pci@vger.kernel.org
+Description:
+ (RO) Symlink to the platform firmware device object "companion"
+ of the host bridge. For example, an ACPI device with an _HID of
+ PNP0A08 (/sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00). See
+ /sys/devices/pciDDDD:BB entry for details about the DDDD:BB
+ format.
+
+What: pciDDDD:BB/streamH.R.E
+Contact: linux-pci@vger.kernel.org
+Description:
+ (RO) When a platform has established a secure connection, PCIe
+ IDE, between two Partner Ports, this symlink appears. A stream
+ consumes a Stream ID slot in each of the Host bridge (H), Root
+ Port (R) and Endpoint (E). The link points to the Endpoint PCI
+ device in the Selective IDE Stream pairing. Specifically, "R"
+ and "E" represent the assigned Selective IDE Stream Register
+ Block in the Root Port and Endpoint, and "H" represents a
+ platform specific pool of stream resources shared by the Root
+ Ports in a host bridge. See /sys/devices/pciDDDD:BB entry for
+ details about the DDDD:BB format.
+
+What: pciDDDD:BB/available_secure_streams
+Contact: linux-pci@vger.kernel.org
+Description:
+ (RO) When a host bridge has Root Ports that support PCIe IDE
+ (link encryption and integrity protection) there may be a
+ limited number of Selective IDE Streams that can be used for
+ establishing new end-to-end secure links. This attribute
+ decrements upon secure link setup, and increments upon secure
+ link teardown. The in-use stream count is determined by counting
+ stream symlinks. See /sys/devices/pciDDDD:BB entry for details
+ about the DDDD:BB format.
diff --git a/Documentation/ABI/testing/sysfs-devices-platform-kunpeng_hccs b/Documentation/ABI/testing/sysfs-devices-platform-kunpeng_hccs
new file mode 100644
index 000000000000..d1b3a95a5518
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-devices-platform-kunpeng_hccs
@@ -0,0 +1,126 @@
+What: /sys/devices/platform/HISI04Bx:00/chipX/all_linked
+What: /sys/devices/platform/HISI04Bx:00/chipX/linked_full_lane
+What: /sys/devices/platform/HISI04Bx:00/chipX/crc_err_cnt
+Date: November 2023
+KernelVersion: 6.6
+Contact: Huisong Li <lihuisong@huawei.com>
+Description:
+ The /sys/devices/platform/HISI04Bx:00/chipX/ directory
+ contains read-only attributes exposing some summarization
+ information of all HCCS ports under a specified chip.
+ The X in 'chipX' indicates the Xth chip on platform.
+
+ There are following attributes in this directory:
+
+ ================= ==== =========================================
+ all_linked: (RO) if all enabled ports on this chip are
+ linked (bool).
+ linked_full_lane: (RO) if all linked ports on this chip are full
+ lane (bool).
+ crc_err_cnt: (RO) total CRC err count for all ports on this
+ chip.
+ ================= ==== =========================================
+
+What: /sys/devices/platform/HISI04Bx:00/chipX/dieY/all_linked
+What: /sys/devices/platform/HISI04Bx:00/chipX/dieY/linked_full_lane
+What: /sys/devices/platform/HISI04Bx:00/chipX/dieY/crc_err_cnt
+Date: November 2023
+KernelVersion: 6.6
+Contact: Huisong Li <lihuisong@huawei.com>
+Description:
+ The /sys/devices/platform/HISI04Bx:00/chipX/dieY/ directory
+ contains read-only attributes exposing some summarization
+ information of all HCCS ports under a specified die.
+ The Y in 'dieY' indicates the hardware id of the die on chip who
+ has chip id X.
+
+ There are following attributes in this directory:
+
+ ================= ==== =========================================
+ all_linked: (RO) if all enabled ports on this die are
+ linked (bool).
+ linked_full_lane: (RO) if all linked ports on this die are full
+ lane (bool).
+ crc_err_cnt: (RO) total CRC err count for all ports on this
+ die.
+ ================= ==== =========================================
+
+What: /sys/devices/platform/HISI04Bx:00/chipX/dieY/hccsN/type
+What: /sys/devices/platform/HISI04Bx:00/chipX/dieY/hccsN/lane_mode
+What: /sys/devices/platform/HISI04Bx:00/chipX/dieY/hccsN/enable
+What: /sys/devices/platform/HISI04Bx:00/chipX/dieY/hccsN/cur_lane_num
+What: /sys/devices/platform/HISI04Bx:00/chipX/dieY/hccsN/link_fsm
+What: /sys/devices/platform/HISI04Bx:00/chipX/dieY/hccsN/lane_mask
+What: /sys/devices/platform/HISI04Bx:00/chipX/dieY/hccsN/crc_err_cnt
+Date: November 2023
+KernelVersion: 6.6
+Contact: Huisong Li <lihuisong@huawei.com>
+Description:
+ The /sys/devices/platform/HISI04Bx/chipX/dieX/hccsN/ directory
+ contains read-only attributes exposing information about
+ a HCCS port. The N value in 'hccsN' indicates this port id.
+ The X in 'chipX' indicates the ID of the chip to which the
+ HCCS port belongs. For example, X ranges from to 'n - 1' if the
+ chip number on platform is n.
+ The Y in 'dieY' indicates the hardware id of the die to which
+ the hccs port belongs.
+ Note: type, lane_mode and enable are fixed attributes on running
+ platform.
+
+ The HCCS port have the following attributes:
+
+ ============= ==== =============================================
+ type: (RO) port type (string), e.g. HCCS-v1 -> H32
+ lane_mode: (RO) the lane mode of this port (string), e.g. x8
+ enable: (RO) indicate if this port is enabled (bool).
+ cur_lane_num: (RO) current lane number of this port.
+ link_fsm: (RO) link finite state machine of this port.
+ lane_mask: (RO) current lane mask of this port, every bit
+ indicates a lane.
+ crc_err_cnt: (RO) CRC err count on this port.
+ ============= ==== =============================================
+
+What: /sys/devices/platform/HISI04Bx:00/used_types
+Date: August 2024
+KernelVersion: 6.12
+Contact: Huisong Li <lihuisong@huawei.com>
+Description:
+ This interface is used to show all HCCS types used on the
+ platform, like, HCCS-v1, HCCS-v2 and so on.
+
+What: /sys/devices/platform/HISI04Bx:00/available_inc_dec_lane_types
+What: /sys/devices/platform/HISI04Bx:00/dec_lane_of_type
+What: /sys/devices/platform/HISI04Bx:00/inc_lane_of_type
+Date: August 2024
+KernelVersion: 6.12
+Contact: Huisong Li <lihuisong@huawei.com>
+Description:
+ These interfaces under /sys/devices/platform/HISI04Bx/ are
+ used to support the low power consumption feature of some
+ HCCS types by changing the number of lanes used. The interfaces
+ changing the number of lanes used are 'dec_lane_of_type' and
+ 'inc_lane_of_type' which require root privileges. These
+ interfaces aren't exposed if no HCCS type on platform support
+ this feature. Please note that decreasing lane number is only
+ allowed if all the specified HCCS ports are not busy.
+
+ The low power consumption interfaces are as follows:
+
+ ============================= ==== ================================
+ available_inc_dec_lane_types: (RO) available HCCS types (string) to
+ increase and decrease the number
+ of lane used, e.g. HCCS-v2.
+ dec_lane_of_type: (WO) input HCCS type supported
+ decreasing lane to decrease the
+ used lane number of all specified
+ HCCS type ports on platform to
+ the minimum.
+ You can query the 'cur_lane_num'
+ to get the minimum lane number
+ after executing successfully.
+ inc_lane_of_type: (WO) input HCCS type supported
+ increasing lane to increase the
+ used lane number of all specified
+ HCCS type ports on platform to
+ the full lane state.
+ ============================= ==== ================================
diff --git a/Documentation/ABI/testing/sysfs-devices-power b/Documentation/ABI/testing/sysfs-devices-power
index 54195530e97a..9bf7c8a267c5 100644
--- a/Documentation/ABI/testing/sysfs-devices-power
+++ b/Documentation/ABI/testing/sysfs-devices-power
@@ -1,6 +1,6 @@
What: /sys/devices/.../power/
Date: January 2009
-Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
+Contact: Rafael J. Wysocki <rafael@kernel.org>
Description:
The /sys/devices/.../power directory contains attributes
allowing the user space to check and modify some power
@@ -8,7 +8,7 @@ Description:
What: /sys/devices/.../power/wakeup
Date: January 2009
-Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
+Contact: Rafael J. Wysocki <rafael@kernel.org>
Description:
The /sys/devices/.../power/wakeup attribute allows the user
space to check if the device is enabled to wake up the system
@@ -34,7 +34,7 @@ Description:
What: /sys/devices/.../power/control
Date: January 2009
-Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
+Contact: Rafael J. Wysocki <rafael@kernel.org>
Description:
The /sys/devices/.../power/control attribute allows the user
space to control the run-time power management of the device.
@@ -53,10 +53,10 @@ Description:
What: /sys/devices/.../power/async
Date: January 2009
-Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
+Contact: Rafael J. Wysocki <rafael@kernel.org>
Description:
The /sys/devices/.../async attribute allows the user space to
- enable or diasble the device's suspend and resume callbacks to
+ enable or disable the device's suspend and resume callbacks to
be executed asynchronously (ie. in separate threads, in parallel
with the main suspend/resume thread) during system-wide power
transitions (eg. suspend to RAM, hibernation).
@@ -79,7 +79,7 @@ Description:
What: /sys/devices/.../power/wakeup_count
Date: September 2010
-Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
+Contact: Rafael J. Wysocki <rafael@kernel.org>
Description:
The /sys/devices/.../wakeup_count attribute contains the number
of signaled wakeup events associated with the device. This
@@ -90,7 +90,7 @@ Description:
What: /sys/devices/.../power/wakeup_active_count
Date: September 2010
-Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
+Contact: Rafael J. Wysocki <rafael@kernel.org>
Description:
The /sys/devices/.../wakeup_active_count attribute contains the
number of times the processing of wakeup events associated with
@@ -102,7 +102,7 @@ Description:
What: /sys/devices/.../power/wakeup_abort_count
Date: February 2012
-Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
+Contact: Rafael J. Wysocki <rafael@kernel.org>
Description:
The /sys/devices/.../wakeup_abort_count attribute contains the
number of times the processing of a wakeup event associated with
@@ -114,7 +114,7 @@ Description:
What: /sys/devices/.../power/wakeup_expire_count
Date: February 2012
-Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
+Contact: Rafael J. Wysocki <rafael@kernel.org>
Description:
The /sys/devices/.../wakeup_expire_count attribute contains the
number of times a wakeup event associated with the device has
@@ -126,7 +126,7 @@ Description:
What: /sys/devices/.../power/wakeup_active
Date: September 2010
-Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
+Contact: Rafael J. Wysocki <rafael@kernel.org>
Description:
The /sys/devices/.../wakeup_active attribute contains either 1,
or 0, depending on whether or not a wakeup event associated with
@@ -138,7 +138,7 @@ Description:
What: /sys/devices/.../power/wakeup_total_time_ms
Date: September 2010
-Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
+Contact: Rafael J. Wysocki <rafael@kernel.org>
Description:
The /sys/devices/.../wakeup_total_time_ms attribute contains
the total time of processing wakeup events associated with the
@@ -149,7 +149,7 @@ Description:
What: /sys/devices/.../power/wakeup_max_time_ms
Date: September 2010
-Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
+Contact: Rafael J. Wysocki <rafael@kernel.org>
Description:
The /sys/devices/.../wakeup_max_time_ms attribute contains
the maximum time of processing a single wakeup event associated
@@ -161,7 +161,7 @@ Description:
What: /sys/devices/.../power/wakeup_last_time_ms
Date: September 2010
-Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
+Contact: Rafael J. Wysocki <rafael@kernel.org>
Description:
The /sys/devices/.../wakeup_last_time_ms attribute contains
the value of the monotonic clock corresponding to the time of
@@ -173,7 +173,7 @@ Description:
What: /sys/devices/.../power/wakeup_prevent_sleep_time_ms
Date: February 2012
-Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
+Contact: Rafael J. Wysocki <rafael@kernel.org>
Description:
The /sys/devices/.../wakeup_prevent_sleep_time_ms attribute
contains the total time the device has been preventing
@@ -203,7 +203,7 @@ Description:
What: /sys/devices/.../power/pm_qos_resume_latency_us
Date: March 2012
-Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
+Contact: Rafael J. Wysocki <rafael@kernel.org>
Description:
The /sys/devices/.../power/pm_qos_resume_latency_us attribute
contains the PM QoS resume latency limit for the given device,
@@ -223,7 +223,7 @@ Description:
What: /sys/devices/.../power/pm_qos_latency_tolerance_us
Date: January 2014
-Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
+Contact: Rafael J. Wysocki <rafael@kernel.org>
Description:
The /sys/devices/.../power/pm_qos_latency_tolerance_us attribute
contains the PM QoS active state latency tolerance limit for the
@@ -248,7 +248,7 @@ Description:
What: /sys/devices/.../power/pm_qos_no_power_off
Date: September 2012
-Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
+Contact: Rafael J. Wysocki <rafael@kernel.org>
Description:
The /sys/devices/.../power/pm_qos_no_power_off attribute
is used for manipulating the PM QoS "no power off" flag. If
@@ -263,7 +263,7 @@ Description:
What: /sys/devices/.../power/runtime_status
Date: April 2010
-Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
+Contact: Rafael J. Wysocki <rafael@kernel.org>
Description:
The /sys/devices/.../power/runtime_status attribute contains
the current runtime PM status of the device, which may be
@@ -274,15 +274,15 @@ What: /sys/devices/.../power/runtime_active_time
Date: Jul 2010
Contact: Arjan van de Ven <arjan@linux.intel.com>
Description:
- Reports the total time that the device has been active.
- Used for runtime PM statistics.
+ Reports the total time that the device has been active, in
+ milliseconds. Used for runtime PM statistics.
What: /sys/devices/.../power/runtime_suspended_time
Date: Jul 2010
Contact: Arjan van de Ven <arjan@linux.intel.com>
Description:
- Reports total time that the device has been suspended.
- Used for runtime PM statistics.
+ Reports total time that the device has been suspended, in
+ milliseconds. Used for runtime PM statistics.
What: /sys/devices/.../power/runtime_usage
Date: Apr 2010
diff --git a/Documentation/ABI/testing/sysfs-devices-system-cpu b/Documentation/ABI/testing/sysfs-devices-system-cpu
index f54867cadb0f..3a05604c21bf 100644
--- a/Documentation/ABI/testing/sysfs-devices-system-cpu
+++ b/Documentation/ABI/testing/sysfs-devices-system-cpu
@@ -111,6 +111,7 @@ What: /sys/devices/system/cpu/cpuidle/available_governors
/sys/devices/system/cpu/cpuidle/current_driver
/sys/devices/system/cpu/cpuidle/current_governor
/sys/devices/system/cpu/cpuidle/current_governer_ro
+ /sys/devices/system/cpu/cpuidle/intel_c1_demotion
Date: September 2007
Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org>
Description: Discover cpuidle policy and mechanism
@@ -132,7 +133,11 @@ Description: Discover cpuidle policy and mechanism
current_governor_ro: (RO) displays current idle policy.
- See Documentation/admin-guide/pm/cpuidle.rst and
+ intel_c1_demotion: (RW) enables/disables the C1 demotion
+ feature on Intel CPUs.
+
+ See Documentation/admin-guide/pm/cpuidle.rst,
+ Documentation/admin-guide/pm/intel_idle.rst, and
Documentation/driver-api/pm/cpuidle.rst for more information.
@@ -268,6 +273,60 @@ Description: Discover CPUs in the same CPU frequency coordination domain
This file is only present if the acpi-cpufreq or the cppc-cpufreq
drivers are in use.
+What: /sys/devices/system/cpu/cpuX/cpufreq/auto_select
+Date: May 2025
+Contact: linux-pm@vger.kernel.org
+Description: Autonomous selection enable
+
+ Read/write interface to control autonomous selection enable
+ Read returns autonomous selection status:
+ 0: autonomous selection is disabled
+ 1: autonomous selection is enabled
+
+ Write 'y' or '1' or 'on' to enable autonomous selection.
+ Write 'n' or '0' or 'off' to disable autonomous selection.
+
+ This file is only present if the cppc-cpufreq driver is in use.
+
+What: /sys/devices/system/cpu/cpuX/cpufreq/auto_act_window
+Date: May 2025
+Contact: linux-pm@vger.kernel.org
+Description: Autonomous activity window
+
+ This file indicates a moving utilization sensitivity window to
+ the platform's autonomous selection policy.
+
+ Read/write an integer represents autonomous activity window (in
+ microseconds) from/to this file. The max value to write is
+ 1270000000 but the max significand is 127. This means that if 128
+ is written to this file, 127 will be stored. If the value is
+ greater than 130, only the first two digits will be saved as
+ significand.
+
+ Writing a zero value to this file enable the platform to
+ determine an appropriate Activity Window depending on the workload.
+
+ Writing to this file only has meaning when Autonomous Selection is
+ enabled.
+
+ This file is only present if the cppc-cpufreq driver is in use.
+
+What: /sys/devices/system/cpu/cpuX/cpufreq/energy_performance_preference_val
+Date: May 2025
+Contact: linux-pm@vger.kernel.org
+Description: Energy performance preference
+
+ Read/write an 8-bit integer from/to this file. This file
+ represents a range of values from 0 (performance preference) to
+ 0xFF (energy efficiency preference) that influences the rate of
+ performance increase/decrease and the result of the hardware's
+ energy efficiency and performance optimization policies.
+
+ Writing to this file only has meaning when Autonomous Selection is
+ enabled.
+
+ This file is only present if the cppc-cpufreq driver is in use.
+
What: /sys/devices/system/cpu/cpu*/cache/index3/cache_disable_{0,1}
Date: August 2008
@@ -354,9 +413,6 @@ Description: Parameters for the CPU cache attributes
- ReadWriteAllocate:
both writeallocate and readallocate
- attributes:
- LEGACY used only on IA64 and is same as write_policy
-
coherency_line_size:
the minimum amount of data in bytes that gets
transferred from memory to cache
@@ -426,7 +482,7 @@ What: /sys/devices/system/cpu/cpuX/cpufreq/throttle_stats
/sys/devices/system/cpu/cpuX/cpufreq/throttle_stats/occ_reset
Date: March 2016
Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org>
- Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
+ Linux for PowerPC mailing list <linuxppc-dev@lists.ozlabs.org>
Description: POWERNV CPUFreq driver's frequency throttle stats directory and
attributes
@@ -476,7 +532,7 @@ What: /sys/devices/system/cpu/cpufreq/policyX/throttle_stats
/sys/devices/system/cpu/cpufreq/policyX/throttle_stats/occ_reset
Date: March 2016
Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org>
- Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
+ Linux for PowerPC mailing list <linuxppc-dev@lists.ozlabs.org>
Description: POWERNV CPUFreq driver's frequency throttle stats directory and
attributes
@@ -488,6 +544,7 @@ What: /sys/devices/system/cpu/cpuX/regs/
/sys/devices/system/cpu/cpuX/regs/identification/
/sys/devices/system/cpu/cpuX/regs/identification/midr_el1
/sys/devices/system/cpu/cpuX/regs/identification/revidr_el1
+ /sys/devices/system/cpu/cpuX/regs/identification/aidr_el1
/sys/devices/system/cpu/cpuX/regs/identification/smidr_el1
Date: June 2016
Contact: Linux ARM Kernel Mailing list <linux-arm-kernel@lists.infradead.org>
@@ -513,17 +570,23 @@ Description: information about CPUs heterogeneity.
cpu_capacity: capacity of cpuX.
What: /sys/devices/system/cpu/vulnerabilities
+ /sys/devices/system/cpu/vulnerabilities/gather_data_sampling
+ /sys/devices/system/cpu/vulnerabilities/indirect_target_selection
+ /sys/devices/system/cpu/vulnerabilities/itlb_multihit
+ /sys/devices/system/cpu/vulnerabilities/l1tf
+ /sys/devices/system/cpu/vulnerabilities/mds
/sys/devices/system/cpu/vulnerabilities/meltdown
+ /sys/devices/system/cpu/vulnerabilities/mmio_stale_data
+ /sys/devices/system/cpu/vulnerabilities/old_microcode
+ /sys/devices/system/cpu/vulnerabilities/reg_file_data_sampling
+ /sys/devices/system/cpu/vulnerabilities/retbleed
+ /sys/devices/system/cpu/vulnerabilities/spec_store_bypass
/sys/devices/system/cpu/vulnerabilities/spectre_v1
/sys/devices/system/cpu/vulnerabilities/spectre_v2
- /sys/devices/system/cpu/vulnerabilities/spec_store_bypass
- /sys/devices/system/cpu/vulnerabilities/l1tf
- /sys/devices/system/cpu/vulnerabilities/mds
/sys/devices/system/cpu/vulnerabilities/srbds
+ /sys/devices/system/cpu/vulnerabilities/tsa
/sys/devices/system/cpu/vulnerabilities/tsx_async_abort
- /sys/devices/system/cpu/vulnerabilities/itlb_multihit
- /sys/devices/system/cpu/vulnerabilities/mmio_stale_data
- /sys/devices/system/cpu/vulnerabilities/retbleed
+ /sys/devices/system/cpu/vulnerabilities/vmscape
Date: January 2018
Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org>
Description: Information about CPU vulnerabilities
@@ -555,6 +618,7 @@ Description: Control Symmetric Multi Threading (SMT)
================ =========================================
"on" SMT is enabled
"off" SMT is disabled
+ "<N>" SMT is enabled with N threads per core.
"forceoff" SMT is force disabled. Cannot be changed.
"notsupported" SMT is not supported by the CPU
"notimplemented" SMT runtime toggling is not
@@ -562,7 +626,8 @@ Description: Control Symmetric Multi Threading (SMT)
================ =========================================
If control status is "forceoff" or "notsupported" writes
- are rejected.
+ are rejected. Note that enabling SMT on PowerPC skips
+ offline cores.
What: /sys/devices/system/cpu/cpuX/power/energy_perf_bias
Date: March 2019
@@ -605,10 +670,22 @@ Description: Umwait control
Note that a value of zero means there is no limit.
Low order two bits must be zero.
+What: /sys/devices/system/cpu/sev
+ /sys/devices/system/cpu/sev/vmpl
+Date: May 2024
+Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org>
+Description: Secure Encrypted Virtualization (SEV) information
+
+ This directory is only present when running as an SEV-SNP guest.
+
+ vmpl: Reports the Virtual Machine Privilege Level (VMPL) at which
+ the SEV-SNP guest is running.
+
+
What: /sys/devices/system/cpu/svm
Date: August 2019
Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org>
- Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
+ Linux for PowerPC mailing list <linuxppc-dev@lists.ozlabs.org>
Description: Secure Virtual Machine
If 1, it means the system is using the Protected Execution
@@ -617,7 +694,7 @@ Description: Secure Virtual Machine
What: /sys/devices/system/cpu/cpuX/purr
Date: Apr 2005
-Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
+Contact: Linux for PowerPC mailing list <linuxppc-dev@lists.ozlabs.org>
Description: PURR ticks for this CPU since the system boot.
The Processor Utilization Resources Register (PURR) is
@@ -628,7 +705,7 @@ Description: PURR ticks for this CPU since the system boot.
What: /sys/devices/system/cpu/cpuX/spurr
Date: Dec 2006
-Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
+Contact: Linux for PowerPC mailing list <linuxppc-dev@lists.ozlabs.org>
Description: SPURR ticks for this CPU since the system boot.
The Scaled Processor Utilization Resources Register
@@ -640,7 +717,7 @@ Description: SPURR ticks for this CPU since the system boot.
What: /sys/devices/system/cpu/cpuX/idle_purr
Date: Apr 2020
-Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
+Contact: Linux for PowerPC mailing list <linuxppc-dev@lists.ozlabs.org>
Description: PURR ticks for cpuX when it was idle.
This sysfs interface exposes the number of PURR ticks
@@ -648,7 +725,7 @@ Description: PURR ticks for cpuX when it was idle.
What: /sys/devices/system/cpu/cpuX/idle_spurr
Date: Apr 2020
-Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
+Contact: Linux for PowerPC mailing list <linuxppc-dev@lists.ozlabs.org>
Description: SPURR ticks for cpuX when it was idle.
This sysfs interface exposes the number of SPURR ticks
@@ -670,7 +747,7 @@ Description: Preferred MTE tag checking mode
"async" Prefer asynchronous mode
================ ==============================================
- See also: Documentation/arm64/memory-tagging-extension.rst
+ See also: Documentation/arch/arm64/memory-tagging-extension.rst
What: /sys/devices/system/cpu/nohz_full
Date: Apr 2015
@@ -686,3 +763,28 @@ Description:
(RO) the list of CPUs that are isolated and don't
participate in load balancing. These CPUs are set by
boot parameter "isolcpus=".
+
+What: /sys/devices/system/cpu/housekeeping
+Date: Oct 2025
+Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org>
+Description:
+ (RO) the list of logical CPUs that are designated by the kernel as
+ "housekeeping". Each CPU are responsible for handling essential
+ system-wide background tasks, including RCU callbacks, delayed
+ timer callbacks, and unbound workqueues, minimizing scheduling
+ jitter on low-latency, isolated CPUs. These CPUs are set when boot
+ parameter "isolcpus=nohz" or "nohz_full=" is specified.
+
+What: /sys/devices/system/cpu/crash_hotplug
+Date: Aug 2023
+Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org>
+Description:
+ (RO) indicates whether or not the kernel updates relevant kexec
+ segments on memory hot un/plug and/or on/offline events, avoiding the
+ need to reload kdump kernel.
+
+What: /sys/devices/system/cpu/enabled
+Date: Nov 2022
+Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org>
+Description:
+ (RO) the list of CPUs that can be brought online.
diff --git a/Documentation/ABI/testing/sysfs-devices-virtual-misc-tdx_guest b/Documentation/ABI/testing/sysfs-devices-virtual-misc-tdx_guest
new file mode 100644
index 000000000000..8fca56c8c9df
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-devices-virtual-misc-tdx_guest
@@ -0,0 +1,63 @@
+What: /sys/devices/virtual/misc/tdx_guest/measurements/MRNAME[:HASH]
+Date: April, 2025
+KernelVersion: v6.16
+Contact: linux-coco@lists.linux.dev
+Description:
+ Value of a TDX measurement register (MR). MRNAME and HASH above
+ are placeholders. The optional suffix :HASH is used for MRs
+ that have associated hash algorithms. See below for a complete
+ list of TDX MRs exposed via sysfs. Refer to Intel TDX Module
+ ABI Specification for the definition of TDREPORT and the full
+ list of TDX measurements.
+
+ Intel TDX Module ABI Specification can be found at:
+ https://www.intel.com/content/www/us/en/developer/tools/trust-domain-extensions/documentation.html#architecture
+
+ See also:
+ https://docs.kernel.org/driver-api/coco/measurement-registers.html
+
+What: /sys/devices/virtual/misc/tdx_guest/measurements/mrconfigid
+Date: April, 2025
+KernelVersion: v6.16
+Contact: linux-coco@lists.linux.dev
+Description:
+ (RO) MRCONFIGID - 48-byte immutable storage typically used for
+ software-defined ID for non-owner-defined configuration of the
+ guest TD – e.g., run-time or OS configuration.
+
+What: /sys/devices/virtual/misc/tdx_guest/measurements/mrowner
+Date: April, 2025
+KernelVersion: v6.16
+Contact: linux-coco@lists.linux.dev
+Description:
+ (RO) MROWNER - 48-byte immutable storage typically used for
+ software-defined ID for the guest TD’s owner.
+
+What: /sys/devices/virtual/misc/tdx_guest/measurements/mrownerconfig
+Date: April, 2025
+KernelVersion: v6.16
+Contact: linux-coco@lists.linux.dev
+Description:
+ (RO) MROWNERCONFIG - 48-byte immutable storage typically used
+ for software-defined ID for owner-defined configuration of the
+ guest TD – e.g., specific to the workload rather than the
+ run-time or OS.
+
+What: /sys/devices/virtual/misc/tdx_guest/measurements/mrtd:sha384
+Date: April, 2025
+KernelVersion: v6.16
+Contact: linux-coco@lists.linux.dev
+Description:
+ (RO) MRTD - Measurement of the initial contents of the TD.
+
+What: /sys/devices/virtual/misc/tdx_guest/measurements/rtmr[0123]:sha384
+Date: April, 2025
+KernelVersion: v6.16
+Contact: linux-coco@lists.linux.dev
+Description:
+ (RW) RTMR[0123] - 4 Run-Time extendable Measurement Registers.
+ Read from any of these returns the current value of the
+ corresponding RTMR. Write extends the written buffer to the
+ RTMR. All writes must start at offset 0 and be 48 bytes in
+ size. Partial writes will result in EINVAL returned by the
+ write() syscall.
diff --git a/Documentation/ABI/testing/sysfs-driver-amd-sfh b/Documentation/ABI/testing/sysfs-driver-amd-sfh
new file mode 100644
index 000000000000..c053126a83bb
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-driver-amd-sfh
@@ -0,0 +1,13 @@
+What: /sys/bus/pci/drivers/pcie_mp2_amd/*/hpd
+Date: April 2025
+Contact: mario.limonciello@amd.com
+Description:
+ Human presence detection (HPD) enable/disable.
+ When HPD is enabled, the device will be able to detect the
+ presence of a human and will send an interrupt that can be
+ used to wake the system from a low power state.
+ When HPD is disabled, the device will not be able to detect
+ the presence of a human.
+
+ Access: Read/Write
+ Valid values: enabled/disabled
diff --git a/Documentation/ABI/testing/sysfs-driver-ccp b/Documentation/ABI/testing/sysfs-driver-ccp
index 7aded9b75553..ee6b787eee7a 100644
--- a/Documentation/ABI/testing/sysfs-driver-ccp
+++ b/Documentation/ABI/testing/sysfs-driver-ccp
@@ -85,3 +85,21 @@ Description:
Possible values:
0: Not enforced
1: Enforced
+
+What: /sys/bus/pci/devices/<BDF>/bootloader_version
+Date: June 2023
+KernelVersion: 6.4
+Contact: mario.limonciello@amd.com
+Description:
+ The /sys/bus/pci/devices/<BDF>/bootloader_version
+ file reports the firmware version of the AMD AGESA
+ bootloader.
+
+What: /sys/bus/pci/devices/<BDF>/tee_version
+Date: June 2023
+KernelVersion: 6.4
+Contact: mario.limonciello@amd.com
+Description:
+ The /sys/bus/pci/devices/<BDF>/tee_version
+ file reports the firmware version of the AMD Trusted
+ Execution Environment (TEE).
diff --git a/Documentation/ABI/testing/sysfs-driver-chromeos-acpi b/Documentation/ABI/testing/sysfs-driver-chromeos-acpi
index c308926e1568..d46b1c85840d 100644
--- a/Documentation/ABI/testing/sysfs-driver-chromeos-acpi
+++ b/Documentation/ABI/testing/sysfs-driver-chromeos-acpi
@@ -1,4 +1,5 @@
What: /sys/bus/platform/devices/GGL0001:*/BINF.2
+ /sys/bus/platform/devices/GOOG0016:*/BINF.2
Date: May 2022
KernelVersion: 5.19
Description:
@@ -10,6 +11,7 @@ Description:
== ===============================
What: /sys/bus/platform/devices/GGL0001:*/BINF.3
+ /sys/bus/platform/devices/GOOG0016:*/BINF.3
Date: May 2022
KernelVersion: 5.19
Description:
@@ -23,6 +25,7 @@ Description:
== =====================================
What: /sys/bus/platform/devices/GGL0001:*/CHSW
+ /sys/bus/platform/devices/GOOG0016:*/CHSW
Date: May 2022
KernelVersion: 5.19
Description:
@@ -38,6 +41,7 @@ Description:
==== ===========================================
What: /sys/bus/platform/devices/GGL0001:*/FMAP
+ /sys/bus/platform/devices/GOOG0016:*/FMAP
Date: May 2022
KernelVersion: 5.19
Description:
@@ -45,6 +49,7 @@ Description:
processor firmware flashmap.
What: /sys/bus/platform/devices/GGL0001:*/FRID
+ /sys/bus/platform/devices/GOOG0016:*/FRID
Date: May 2022
KernelVersion: 5.19
Description:
@@ -52,6 +57,7 @@ Description:
main processor firmware.
What: /sys/bus/platform/devices/GGL0001:*/FWID
+ /sys/bus/platform/devices/GOOG0016:*/FWID
Date: May 2022
KernelVersion: 5.19
Description:
@@ -59,6 +65,7 @@ Description:
main processor firmware.
What: /sys/bus/platform/devices/GGL0001:*/GPIO.X/GPIO.0
+ /sys/bus/platform/devices/GOOG0016:*/GPIO.X/GPIO.0
Date: May 2022
KernelVersion: 5.19
Description:
@@ -73,6 +80,7 @@ Description:
=========== ==================================
What: /sys/bus/platform/devices/GGL0001:*/GPIO.X/GPIO.1
+ /sys/bus/platform/devices/GOOG0016:*/GPIO.X/GPIO.1
Date: May 2022
KernelVersion: 5.19
Description:
@@ -84,6 +92,7 @@ Description:
== =======================
What: /sys/bus/platform/devices/GGL0001:*/GPIO.X/GPIO.2
+ /sys/bus/platform/devices/GOOG0016:*/GPIO.X/GPIO.2
Date: May 2022
KernelVersion: 5.19
Description:
@@ -91,18 +100,21 @@ Description:
controller.
What: /sys/bus/platform/devices/GGL0001:*/GPIO.X/GPIO.3
+ /sys/bus/platform/devices/GOOG0016:*/GPIO.X/GPIO.3
Date: May 2022
KernelVersion: 5.19
Description:
Returns name of the GPIO controller.
What: /sys/bus/platform/devices/GGL0001:*/HWID
+ /sys/bus/platform/devices/GOOG0016:*/HWID
Date: May 2022
KernelVersion: 5.19
Description:
Returns hardware ID for the Chromebook.
What: /sys/bus/platform/devices/GGL0001:*/MECK
+ /sys/bus/platform/devices/GOOG0016:*/MECK
Date: May 2022
KernelVersion: 5.19
Description:
@@ -113,6 +125,7 @@ Description:
present, or if the firmware was unable to read the extended registers, this buffer size can be zero.
What: /sys/bus/platform/devices/GGL0001:*/VBNV.0
+ /sys/bus/platform/devices/GOOG0016:*/VBNV.0
Date: May 2022
KernelVersion: 5.19
Description:
@@ -122,6 +135,7 @@ Description:
clock data).
What: /sys/bus/platform/devices/GGL0001:*/VBNV.1
+ /sys/bus/platform/devices/GOOG0016:*/VBNV.1
Date: May 2022
KernelVersion: 5.19
Description:
@@ -129,9 +143,10 @@ Description:
storage block.
What: /sys/bus/platform/devices/GGL0001:*/VDAT
+ /sys/bus/platform/devices/GOOG0016:*/VDAT
Date: May 2022
KernelVersion: 5.19
Description:
Returns the verified boot data block shared between the
firmware verification step and the kernel verification step
- (binary).
+ (hex dump).
diff --git a/Documentation/ABI/testing/sysfs-driver-eud b/Documentation/ABI/testing/sysfs-driver-eud
index 83f3872182a4..2bab0db2d2f0 100644
--- a/Documentation/ABI/testing/sysfs-driver-eud
+++ b/Documentation/ABI/testing/sysfs-driver-eud
@@ -1,4 +1,4 @@
-What: /sys/bus/platform/drivers/eud/.../enable
+What: /sys/bus/platform/drivers/qcom_eud/.../enable
Date: February 2022
Contact: Souradeep Chowdhury <quic_schowdhu@quicinc.com>
Description:
diff --git a/Documentation/ABI/testing/sysfs-driver-framer-pef2256 b/Documentation/ABI/testing/sysfs-driver-framer-pef2256
new file mode 100644
index 000000000000..29f97783bf07
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-driver-framer-pef2256
@@ -0,0 +1,8 @@
+What: /sys/bus/platform/devices/xxx/version
+Date: Sep 2025
+Contact: netdev@vger.kernel.org
+Description: Reports the version of the PEF2256 framer
+
+ Access: Read
+
+ Valid values: Represented as string
diff --git a/Documentation/ABI/testing/sysfs-driver-ge-achc b/Documentation/ABI/testing/sysfs-driver-ge-achc
index a9e7a079190c..c3e77def4b20 100644
--- a/Documentation/ABI/testing/sysfs-driver-ge-achc
+++ b/Documentation/ABI/testing/sysfs-driver-ge-achc
@@ -5,7 +5,7 @@ Description: Write 1 to this file to update the ACHC microcontroller
firmware via the EzPort interface. For this the kernel
will load "achc.bin" via the firmware API (so usually
from /lib/firmware). The write will block until the FW
- has either been flashed successfully or an error occured.
+ has either been flashed successfully or an error occurred.
What: /sys/bus/spi/<dev>/reset
Date: Jul 2021
diff --git a/Documentation/ABI/testing/sysfs-driver-habanalabs b/Documentation/ABI/testing/sysfs-driver-habanalabs
index 1b98b6503b23..4244f5af4b54 100644
--- a/Documentation/ABI/testing/sysfs-driver-habanalabs
+++ b/Documentation/ABI/testing/sysfs-driver-habanalabs
@@ -1,4 +1,4 @@
-What: /sys/class/habanalabs/hl<n>/armcp_kernel_ver
+What: /sys/class/accel/accel<n>/device/armcp_kernel_ver
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
@@ -6,7 +6,7 @@ Description: Version of the Linux kernel running on the device's CPU.
Will be DEPRECATED in Linux kernel version 5.10, and be
replaced with cpucp_kernel_ver
-What: /sys/class/habanalabs/hl<n>/armcp_ver
+What: /sys/class/accel/accel<n>/device/armcp_ver
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
@@ -14,7 +14,7 @@ Description: Version of the application running on the device's CPU
Will be DEPRECATED in Linux kernel version 5.10, and be
replaced with cpucp_ver
-What: /sys/class/habanalabs/hl<n>/clk_max_freq_mhz
+What: /sys/class/accel/accel<n>/device/clk_max_freq_mhz
Date: Jun 2019
KernelVersion: 5.7
Contact: ogabbay@kernel.org
@@ -24,58 +24,58 @@ Description: Allows the user to set the maximum clock frequency, in MHz.
frequency value of the device clock. This property is valid
only for the Gaudi ASIC family
-What: /sys/class/habanalabs/hl<n>/clk_cur_freq_mhz
+What: /sys/class/accel/accel<n>/device/clk_cur_freq_mhz
Date: Jun 2019
KernelVersion: 5.7
Contact: ogabbay@kernel.org
Description: Displays the current frequency, in MHz, of the device clock.
This property is valid only for the Gaudi ASIC family
-What: /sys/class/habanalabs/hl<n>/cpld_ver
+What: /sys/class/accel/accel<n>/device/cpld_ver
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
Description: Version of the Device's CPLD F/W
-What: /sys/class/habanalabs/hl<n>/cpucp_kernel_ver
+What: /sys/class/accel/accel<n>/device/cpucp_kernel_ver
Date: Oct 2020
KernelVersion: 5.10
Contact: ogabbay@kernel.org
Description: Version of the Linux kernel running on the device's CPU
-What: /sys/class/habanalabs/hl<n>/cpucp_ver
+What: /sys/class/accel/accel<n>/device/cpucp_ver
Date: Oct 2020
KernelVersion: 5.10
Contact: ogabbay@kernel.org
Description: Version of the application running on the device's CPU
-What: /sys/class/habanalabs/hl<n>/device_type
+What: /sys/class/accel/accel<n>/device/device_type
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
Description: Displays the code name of the device according to its type.
The supported values are: "GOYA"
-What: /sys/class/habanalabs/hl<n>/eeprom
+What: /sys/class/accel/accel<n>/device/eeprom
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
Description: A binary file attribute that contains the contents of the
on-board EEPROM
-What: /sys/class/habanalabs/hl<n>/fuse_ver
+What: /sys/class/accel/accel<n>/device/fuse_ver
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
Description: Displays the device's version from the eFuse
-What: /sys/class/habanalabs/hl<n>/fw_os_ver
+What: /sys/class/accel/accel<n>/device/fw_os_ver
Date: Dec 2021
KernelVersion: 5.18
Contact: ogabbay@kernel.org
Description: Version of the firmware OS running on the device's CPU
-What: /sys/class/habanalabs/hl<n>/hard_reset
+What: /sys/class/accel/accel<n>/device/hard_reset
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
@@ -83,14 +83,14 @@ Description: Interface to trigger a hard-reset operation for the device.
Hard-reset will reset ALL internal components of the device
except for the PCI interface and the internal PLLs
-What: /sys/class/habanalabs/hl<n>/hard_reset_cnt
+What: /sys/class/accel/accel<n>/device/hard_reset_cnt
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
Description: Displays how many times the device have undergone a hard-reset
operation since the driver was loaded
-What: /sys/class/habanalabs/hl<n>/high_pll
+What: /sys/class/accel/accel<n>/device/high_pll
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
@@ -98,7 +98,7 @@ Description: Allows the user to set the maximum clock frequency for MME, TPC
and IC when the power management profile is set to "automatic".
This property is valid only for the Goya ASIC family
-What: /sys/class/habanalabs/hl<n>/ic_clk
+What: /sys/class/accel/accel<n>/device/ic_clk
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
@@ -110,27 +110,27 @@ Description: Allows the user to set the maximum clock frequency, in Hz, of
frequency value of the IC. This property is valid only for the
Goya ASIC family
-What: /sys/class/habanalabs/hl<n>/ic_clk_curr
+What: /sys/class/accel/accel<n>/device/ic_clk_curr
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
Description: Displays the current clock frequency, in Hz, of the Interconnect
fabric. This property is valid only for the Goya ASIC family
-What: /sys/class/habanalabs/hl<n>/infineon_ver
+What: /sys/class/accel/accel<n>/device/infineon_ver
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
Description: Version of the Device's power supply F/W code. Relevant only to GOYA and GAUDI
-What: /sys/class/habanalabs/hl<n>/max_power
+What: /sys/class/accel/accel<n>/device/max_power
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
Description: Allows the user to set the maximum power consumption of the
device in milliwatts.
-What: /sys/class/habanalabs/hl<n>/mme_clk
+What: /sys/class/accel/accel<n>/device/mme_clk
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
@@ -142,21 +142,33 @@ Description: Allows the user to set the maximum clock frequency, in Hz, of
frequency value of the MME. This property is valid only for the
Goya ASIC family
-What: /sys/class/habanalabs/hl<n>/mme_clk_curr
+What: /sys/class/accel/accel<n>/device/mme_clk_curr
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
Description: Displays the current clock frequency, in Hz, of the MME compute
engine. This property is valid only for the Goya ASIC family
-What: /sys/class/habanalabs/hl<n>/pci_addr
+What: /sys/class/accel/accel<n>/device/module_id
+Date: Nov 2023
+KernelVersion: not yet upstreamed
+Contact: ogabbay@kernel.org
+Description: Displays the device's module id
+
+What: /sys/class/accel/accel<n>/device/parent_device
+Date: Nov 2023
+KernelVersion: 6.8
+Contact: ttayar@habana.ai
+Description: Displays the name of the parent device of the accel device
+
+What: /sys/class/accel/accel<n>/device/pci_addr
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
Description: Displays the PCI address of the device. This is needed so the
user would be able to open a device based on its PCI address
-What: /sys/class/habanalabs/hl<n>/pm_mng_profile
+What: /sys/class/accel/accel<n>/device/pm_mng_profile
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
@@ -170,19 +182,19 @@ Description: Power management profile. Values are "auto", "manual". In "auto"
ic_clk, mme_clk and tpc_clk. This property is valid only for
the Goya ASIC family
-What: /sys/class/habanalabs/hl<n>/preboot_btl_ver
+What: /sys/class/accel/accel<n>/device/preboot_btl_ver
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
Description: Version of the device's preboot F/W code
-What: /sys/class/habanalabs/hl<n>/security_enabled
+What: /sys/class/accel/accel<n>/device/security_enabled
Date: Oct 2022
KernelVersion: 6.1
Contact: obitton@habana.ai
Description: Displays the device's security status
-What: /sys/class/habanalabs/hl<n>/soft_reset
+What: /sys/class/accel/accel<n>/device/soft_reset
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
@@ -190,14 +202,14 @@ Description: Interface to trigger a soft-reset operation for the device.
Soft-reset will reset only the compute and DMA engines of the
device
-What: /sys/class/habanalabs/hl<n>/soft_reset_cnt
+What: /sys/class/accel/accel<n>/device/soft_reset_cnt
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
Description: Displays how many times the device have undergone a soft-reset
operation since the driver was loaded
-What: /sys/class/habanalabs/hl<n>/status
+What: /sys/class/accel/accel<n>/device/status
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
@@ -215,13 +227,13 @@ Description: Status of the card:
a compute-reset which is executed after a device release
(relevant for Gaudi2 only).
-What: /sys/class/habanalabs/hl<n>/thermal_ver
+What: /sys/class/accel/accel<n>/device/thermal_ver
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
Description: Version of the Device's thermal daemon
-What: /sys/class/habanalabs/hl<n>/tpc_clk
+What: /sys/class/accel/accel<n>/device/tpc_clk
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
@@ -233,20 +245,20 @@ Description: Allows the user to set the maximum clock frequency, in Hz, of
frequency value of the TPC. This property is valid only for
Goya ASIC family
-What: /sys/class/habanalabs/hl<n>/tpc_clk_curr
+What: /sys/class/accel/accel<n>/device/tpc_clk_curr
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
Description: Displays the current clock frequency, in Hz, of the TPC compute
engines. This property is valid only for the Goya ASIC family
-What: /sys/class/habanalabs/hl<n>/uboot_ver
+What: /sys/class/accel/accel<n>/device/uboot_ver
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
Description: Version of the u-boot running on the device's CPU
-What: /sys/class/habanalabs/hl<n>/vrm_ver
+What: /sys/class/accel/accel<n>/device/vrm_ver
Date: Jan 2022
KernelVersion: 5.17
Contact: ogabbay@kernel.org
diff --git a/Documentation/ABI/testing/sysfs-driver-hid-appletb-kbd b/Documentation/ABI/testing/sysfs-driver-hid-appletb-kbd
new file mode 100644
index 000000000000..8c9718d83e9d
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-driver-hid-appletb-kbd
@@ -0,0 +1,13 @@
+What: /sys/bus/hid/drivers/hid-appletb-kbd/<dev>/mode
+Date: March, 2025
+KernelVersion: 6.15
+Contact: linux-input@vger.kernel.org
+Description:
+ The set of keys displayed on the Touch Bar.
+ Valid values are:
+ == =================
+ 0 Escape key only
+ 1 Function keys
+ 2 Media/brightness keys
+ 3 None
+ == =================
diff --git a/Documentation/ABI/testing/sysfs-driver-hid-corsair-void b/Documentation/ABI/testing/sysfs-driver-hid-corsair-void
new file mode 100644
index 000000000000..83fa625c0025
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-driver-hid-corsair-void
@@ -0,0 +1,38 @@
+What: /sys/bus/hid/drivers/hid-corsair-void/<dev>/fw_version_headset
+Date: January 2024
+KernelVersion: 6.13
+Contact: Stuart Hayhurst <stuart.a.hayhurst@gmail.com>
+Description: (R) The firmware version of the headset
+ * Returns -ENODATA if no version was reported
+
+What: /sys/bus/hid/drivers/hid-corsair-void/<dev>/fw_version_receiver
+Date: January 2024
+KernelVersion: 6.13
+Contact: Stuart Hayhurst <stuart.a.hayhurst@gmail.com>
+Description: (R) The firmware version of the receiver
+
+What: /sys/bus/hid/drivers/hid-corsair-void/<dev>/microphone_up
+Date: July 2023
+KernelVersion: 6.13
+Contact: Stuart Hayhurst <stuart.a.hayhurst@gmail.com>
+Description: (R) Get the physical position of the microphone
+ * 1 -> Microphone up
+ * 0 -> Microphone down
+
+What: /sys/bus/hid/drivers/hid-corsair-void/<dev>/send_alert
+Date: July 2023
+KernelVersion: 6.13
+Contact: Stuart Hayhurst <stuart.a.hayhurst@gmail.com>
+Description: (W) Play a built-in notification from the headset (0 / 1)
+
+What: /sys/bus/hid/drivers/hid-corsair-void/<dev>/set_sidetone
+Date: December 2023
+KernelVersion: 6.13
+Contact: Stuart Hayhurst <stuart.a.hayhurst@gmail.com>
+Description: (W) Set the sidetone volume (0 - sidetone_max)
+
+What: /sys/bus/hid/drivers/hid-corsair-void/<dev>/sidetone_max
+Date: July 2024
+KernelVersion: 6.13
+Contact: Stuart Hayhurst <stuart.a.hayhurst@gmail.com>
+Description: (R) Report the maximum sidetone volume
diff --git a/Documentation/ABI/testing/sysfs-driver-intel-i915-hwmon b/Documentation/ABI/testing/sysfs-driver-intel-i915-hwmon
index 8d7d8f05f6cd..a885e5316d02 100644
--- a/Documentation/ABI/testing/sysfs-driver-intel-i915-hwmon
+++ b/Documentation/ABI/testing/sysfs-driver-intel-i915-hwmon
@@ -1,4 +1,4 @@
-What: /sys/devices/.../hwmon/hwmon<i>/in0_input
+What: /sys/bus/pci/drivers/i915/.../hwmon/hwmon<i>/in0_input
Date: February 2023
KernelVersion: 6.2
Contact: intel-gfx@lists.freedesktop.org
@@ -6,7 +6,7 @@ Description: RO. Current Voltage in millivolt.
Only supported for particular Intel i915 graphics platforms.
-What: /sys/devices/.../hwmon/hwmon<i>/power1_max
+What: /sys/bus/pci/drivers/i915/.../hwmon/hwmon<i>/power1_max
Date: February 2023
KernelVersion: 6.2
Contact: intel-gfx@lists.freedesktop.org
@@ -20,7 +20,7 @@ Description: RW. Card reactive sustained (PL1/Tau) power limit in microwatts.
Only supported for particular Intel i915 graphics platforms.
-What: /sys/devices/.../hwmon/hwmon<i>/power1_rated_max
+What: /sys/bus/pci/drivers/i915/.../hwmon/hwmon<i>/power1_rated_max
Date: February 2023
KernelVersion: 6.2
Contact: intel-gfx@lists.freedesktop.org
@@ -28,7 +28,7 @@ Description: RO. Card default power limit (default TDP setting).
Only supported for particular Intel i915 graphics platforms.
-What: /sys/devices/.../hwmon/hwmon<i>/power1_max_interval
+What: /sys/bus/pci/drivers/i915/.../hwmon/hwmon<i>/power1_max_interval
Date: February 2023
KernelVersion: 6.2
Contact: intel-gfx@lists.freedesktop.org
@@ -37,7 +37,7 @@ Description: RW. Sustained power limit interval (Tau in PL1/Tau) in
Only supported for particular Intel i915 graphics platforms.
-What: /sys/devices/.../hwmon/hwmon<i>/power1_crit
+What: /sys/bus/pci/drivers/i915/.../hwmon/hwmon<i>/power1_crit
Date: February 2023
KernelVersion: 6.2
Contact: intel-gfx@lists.freedesktop.org
@@ -50,7 +50,7 @@ Description: RW. Card reactive critical (I1) power limit in microwatts.
Only supported for particular Intel i915 graphics platforms.
-What: /sys/devices/.../hwmon/hwmon<i>/curr1_crit
+What: /sys/bus/pci/drivers/i915/.../hwmon/hwmon<i>/curr1_crit
Date: February 2023
KernelVersion: 6.2
Contact: intel-gfx@lists.freedesktop.org
@@ -63,7 +63,7 @@ Description: RW. Card reactive critical (I1) power limit in milliamperes.
Only supported for particular Intel i915 graphics platforms.
-What: /sys/devices/.../hwmon/hwmon<i>/energy1_input
+What: /sys/bus/pci/drivers/i915/.../hwmon/hwmon<i>/energy1_input
Date: February 2023
KernelVersion: 6.2
Contact: intel-gfx@lists.freedesktop.org
@@ -75,3 +75,19 @@ Description: RO. Energy input of device or gt in microjoules.
for the gt.
Only supported for particular Intel i915 graphics platforms.
+
+What: /sys/bus/pci/drivers/i915/.../hwmon/hwmon<i>/fan1_input
+Date: November 2024
+KernelVersion: 6.12
+Contact: intel-gfx@lists.freedesktop.org
+Description: RO. Fan speed of device in RPM.
+
+ Only supported for particular Intel i915 graphics platforms.
+
+What: /sys/bus/pci/drivers/i915/.../hwmon/hwmon<i>/temp1_input
+Date: November 2024
+KernelVersion: 6.12
+Contact: intel-gfx@lists.freedesktop.org
+Description: RO. GPU package temperature in millidegree Celsius.
+
+ Only supported for particular Intel i915 graphics platforms.
diff --git a/Documentation/ABI/testing/sysfs-driver-intel-m10-bmc b/Documentation/ABI/testing/sysfs-driver-intel-m10-bmc
index a8ab58035c95..faeae8fedb14 100644
--- a/Documentation/ABI/testing/sysfs-driver-intel-m10-bmc
+++ b/Documentation/ABI/testing/sysfs-driver-intel-m10-bmc
@@ -17,7 +17,7 @@ Description: Read only. Returns the firmware version of Intel MAX10
What: /sys/bus/.../drivers/intel-m10-bmc/.../mac_address
Date: January 2021
KernelVersion: 5.12
-Contact: Russ Weight <russell.h.weight@intel.com>
+Contact: Matthew Gerlach <matthew.gerlach@altera.com>
Description: Read only. Returns the first MAC address in a block
of sequential MAC addresses assigned to the board
that is managed by the Intel MAX10 BMC. It is stored in
@@ -28,7 +28,7 @@ Description: Read only. Returns the first MAC address in a block
What: /sys/bus/.../drivers/intel-m10-bmc/.../mac_count
Date: January 2021
KernelVersion: 5.12
-Contact: Russ Weight <russell.h.weight@intel.com>
+Contact: Matthew Gerlach <matthew.gerlach@altera.com>
Description: Read only. Returns the number of sequential MAC
addresses assigned to the board managed by the Intel
MAX10 BMC. This value is stored in FLASH and is mirrored
diff --git a/Documentation/ABI/testing/sysfs-driver-intel-m10-bmc-sec-update b/Documentation/ABI/testing/sysfs-driver-intel-m10-bmc-sec-update
index 0a41afe0ab4c..3a6ca780c75c 100644
--- a/Documentation/ABI/testing/sysfs-driver-intel-m10-bmc-sec-update
+++ b/Documentation/ABI/testing/sysfs-driver-intel-m10-bmc-sec-update
@@ -1,7 +1,7 @@
What: /sys/bus/platform/drivers/intel-m10bmc-sec-update/.../security/sr_root_entry_hash
Date: Sep 2022
KernelVersion: 5.20
-Contact: Russ Weight <russell.h.weight@intel.com>
+Contact: Matthew Gerlach <matthew.gerlach@altera.com>
Description: Read only. Returns the root entry hash for the static
region if one is programmed, else it returns the
string: "hash not programmed". This file is only
@@ -11,7 +11,7 @@ Description: Read only. Returns the root entry hash for the static
What: /sys/bus/platform/drivers/intel-m10bmc-sec-update/.../security/pr_root_entry_hash
Date: Sep 2022
KernelVersion: 5.20
-Contact: Russ Weight <russell.h.weight@intel.com>
+Contact: Matthew Gerlach <matthew.gerlach@altera.com>
Description: Read only. Returns the root entry hash for the partial
reconfiguration region if one is programmed, else it
returns the string: "hash not programmed". This file
@@ -21,7 +21,7 @@ Description: Read only. Returns the root entry hash for the partial
What: /sys/bus/platform/drivers/intel-m10bmc-sec-update/.../security/bmc_root_entry_hash
Date: Sep 2022
KernelVersion: 5.20
-Contact: Russ Weight <russell.h.weight@intel.com>
+Contact: Matthew Gerlach <matthew.gerlach@altera.com>
Description: Read only. Returns the root entry hash for the BMC image
if one is programmed, else it returns the string:
"hash not programmed". This file is only visible if the
@@ -31,7 +31,7 @@ Description: Read only. Returns the root entry hash for the BMC image
What: /sys/bus/platform/drivers/intel-m10bmc-sec-update/.../security/sr_canceled_csks
Date: Sep 2022
KernelVersion: 5.20
-Contact: Russ Weight <russell.h.weight@intel.com>
+Contact: Matthew Gerlach <matthew.gerlach@altera.com>
Description: Read only. Returns a list of indices for canceled code
signing keys for the static region. The standard bitmap
list format is used (e.g. "1,2-6,9").
@@ -39,7 +39,7 @@ Description: Read only. Returns a list of indices for canceled code
What: /sys/bus/platform/drivers/intel-m10bmc-sec-update/.../security/pr_canceled_csks
Date: Sep 2022
KernelVersion: 5.20
-Contact: Russ Weight <russell.h.weight@intel.com>
+Contact: Matthew Gerlach <matthew.gerlach@altera.com>
Description: Read only. Returns a list of indices for canceled code
signing keys for the partial reconfiguration region. The
standard bitmap list format is used (e.g. "1,2-6,9").
@@ -47,7 +47,7 @@ Description: Read only. Returns a list of indices for canceled code
What: /sys/bus/platform/drivers/intel-m10bmc-sec-update/.../security/bmc_canceled_csks
Date: Sep 2022
KernelVersion: 5.20
-Contact: Russ Weight <russell.h.weight@intel.com>
+Contact: Matthew Gerlach <matthew.gerlach@altera.com>
Description: Read only. Returns a list of indices for canceled code
signing keys for the BMC. The standard bitmap list format
is used (e.g. "1,2-6,9").
@@ -55,7 +55,7 @@ Description: Read only. Returns a list of indices for canceled code
What: /sys/bus/platform/drivers/intel-m10bmc-sec-update/.../security/flash_count
Date: Sep 2022
KernelVersion: 5.20
-Contact: Russ Weight <russell.h.weight@intel.com>
+Contact: Matthew Gerlach <matthew.gerlach@altera.com>
Description: Read only. Returns number of times the secure update
staging area has been flashed.
Format: "%u".
diff --git a/Documentation/ABI/testing/sysfs-driver-intel-xe-hwmon b/Documentation/ABI/testing/sysfs-driver-intel-xe-hwmon
new file mode 100644
index 000000000000..d9e2b17c6872
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-driver-intel-xe-hwmon
@@ -0,0 +1,198 @@
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power1_max
+Date: September 2023
+KernelVersion: 6.5
+Contact: intel-xe@lists.freedesktop.org
+Description: RW. Card reactive sustained (PL1) power limit in microwatts.
+
+ The power controller will throttle the operating frequency
+ if the power averaged over a window (typically seconds)
+ exceeds this limit. A read value of 0 means that the PL1
+ power limit is disabled, writing 0 disables the
+ limit. Writing values > 0 and <= TDP will enable the power limit.
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power1_rated_max
+Date: September 2023
+KernelVersion: 6.5
+Contact: intel-xe@lists.freedesktop.org
+Description: RO. Card default power limit (default TDP setting).
+
+ Only supported for particular Intel Xe graphics platforms.
+
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/energy1_input
+Date: September 2023
+KernelVersion: 6.5
+Contact: intel-xe@lists.freedesktop.org
+Description: RO. Card energy input of device in microjoules.
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power1_max_interval
+Date: October 2023
+KernelVersion: 6.6
+Contact: intel-xe@lists.freedesktop.org
+Description: RW. Card sustained power limit interval (Tau in PL1/Tau) in
+ milliseconds over which sustained power is averaged.
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power2_max
+Date: February 2024
+KernelVersion: 6.8
+Contact: intel-xe@lists.freedesktop.org
+Description: RW. Package reactive sustained (PL1) power limit in microwatts.
+
+ The power controller will throttle the operating frequency
+ if the power averaged over a window (typically seconds)
+ exceeds this limit. A read value of 0 means that the PL1
+ power limit is disabled, writing 0 disables the
+ limit. Writing values > 0 and <= TDP will enable the power limit.
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power2_rated_max
+Date: February 2024
+KernelVersion: 6.8
+Contact: intel-xe@lists.freedesktop.org
+Description: RO. Package default power limit (default TDP setting).
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power1_crit
+Date: May 2025
+KernelVersion: 6.15
+Contact: intel-xe@lists.freedesktop.org
+Description: RW. Card reactive critical (I1) power limit in microwatts.
+
+ Card reactive critical (I1) power limit in microwatts is exposed
+ for client products. The power controller will throttle the
+ operating frequency if the power averaged over a window exceeds
+ this limit.
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/curr1_crit
+Date: May 2025
+KernelVersion: 6.15
+Contact: intel-xe@lists.freedesktop.org
+Description: RW. Card reactive critical (I1) power limit in milliamperes.
+
+ Card reactive critical (I1) power limit in milliamperes is
+ exposed for server products. The power controller will throttle
+ the operating frequency if the power averaged over a window
+ exceeds this limit.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/energy2_input
+Date: February 2024
+KernelVersion: 6.8
+Contact: intel-xe@lists.freedesktop.org
+Description: RO. Package energy input of device in microjoules.
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power2_max_interval
+Date: February 2024
+KernelVersion: 6.8
+Contact: intel-xe@lists.freedesktop.org
+Description: RW. Package sustained power limit interval (Tau in PL1/Tau) in
+ milliseconds over which sustained power is averaged.
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/in1_input
+Date: February 2024
+KernelVersion: 6.8
+Contact: intel-xe@lists.freedesktop.org
+Description: RO. Package current voltage in millivolt.
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/temp2_input
+Date: March 2025
+KernelVersion: 6.15
+Contact: intel-xe@lists.freedesktop.org
+Description: RO. Package temperature in millidegree Celsius.
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/temp3_input
+Date: March 2025
+KernelVersion: 6.15
+Contact: intel-xe@lists.freedesktop.org
+Description: RO. VRAM temperature in millidegree Celsius.
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/fan1_input
+Date: March 2025
+KernelVersion: 6.16
+Contact: intel-xe@lists.freedesktop.org
+Description: RO. Fan 1 speed in RPM.
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/fan2_input
+Date: March 2025
+KernelVersion: 6.16
+Contact: intel-xe@lists.freedesktop.org
+Description: RO. Fan 2 speed in RPM.
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/fan3_input
+Date: March 2025
+KernelVersion: 6.16
+Contact: intel-xe@lists.freedesktop.org
+Description: RO. Fan 3 speed in RPM.
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power1_cap
+Date: May 2025
+KernelVersion: 6.15
+Contact: intel-xe@lists.freedesktop.org
+Description: RW. Card burst (PL2) power limit in microwatts.
+
+ The power controller will throttle the operating frequency
+ if the power averaged over a window (typically milli seconds)
+ exceeds this limit. A read value of 0 means that the PL2
+ power limit is disabled, writing 0 disables the limit.
+ PL2 is greater than PL1 and its time window is lesser
+ compared to PL1.
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power2_cap
+Date: May 2025
+KernelVersion: 6.15
+Contact: intel-xe@lists.freedesktop.org
+Description: RW. Package burst (PL2) power limit in microwatts.
+
+ The power controller will throttle the operating frequency
+ if the power averaged over a window (typically milli seconds)
+ exceeds this limit. A read value of 0 means that the PL2
+ power limit is disabled, writing 0 disables the limit.
+ PL2 is greater than PL1 and its time window is lesser
+ compared to PL1.
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power1_cap_interval
+Date: May 2025
+KernelVersion: 6.15
+Contact: intel-xe@lists.freedesktop.org
+Description: RW. Card burst power limit interval (Tau in PL2/Tau) in
+ milliseconds over which sustained power is averaged.
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power2_cap_interval
+Date: May 2025
+KernelVersion: 6.15
+Contact: intel-xe@lists.freedesktop.org
+Description: RW. Package burst power limit interval (Tau in PL2/Tau) in
+ milliseconds over which sustained power is averaged.
+
+ Only supported for particular Intel Xe graphics platforms.
diff --git a/Documentation/ABI/testing/sysfs-driver-intel-xe-sriov b/Documentation/ABI/testing/sysfs-driver-intel-xe-sriov
new file mode 100644
index 000000000000..2fd7e9b7bacc
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-driver-intel-xe-sriov
@@ -0,0 +1,159 @@
+What: /sys/bus/pci/drivers/xe/.../sriov_admin/
+Date: October 2025
+KernelVersion: 6.19
+Contact: intel-xe@lists.freedesktop.org
+Description:
+ This directory appears for the particular Intel Xe device when:
+
+ - device supports SR-IOV, and
+ - device is a Physical Function (PF), and
+ - driver support for the SR-IOV PF is enabled on given device.
+
+ This directory is used as a root for all attributes required to
+ manage both Physical Function (PF) and Virtual Functions (VFs).
+
+
+What: /sys/bus/pci/drivers/xe/.../sriov_admin/pf/
+Date: October 2025
+KernelVersion: 6.19
+Contact: intel-xe@lists.freedesktop.org
+Description:
+ This directory holds attributes related to the SR-IOV Physical
+ Function (PF).
+
+
+What: /sys/bus/pci/drivers/xe/.../sriov_admin/vf1/
+What: /sys/bus/pci/drivers/xe/.../sriov_admin/vf2/
+What: /sys/bus/pci/drivers/xe/.../sriov_admin/vf<N>/
+Date: October 2025
+KernelVersion: 6.19
+Contact: intel-xe@lists.freedesktop.org
+Description:
+ These directories hold attributes related to the SR-IOV Virtual
+ Functions (VFs).
+
+ Note that the VF number <N> is 1-based as described in PCI SR-IOV
+ specification as the Xe driver follows that naming schema.
+
+ There could be "vf1", "vf2" and so on, up to "vf<N>", where <N>
+ matches the value of the "sriov_totalvfs" attribute.
+
+
+What: /sys/bus/pci/drivers/xe/.../sriov_admin/pf/profile/exec_quantum_ms
+What: /sys/bus/pci/drivers/xe/.../sriov_admin/pf/profile/preempt_timeout_us
+What: /sys/bus/pci/drivers/xe/.../sriov_admin/pf/profile/sched_priority
+What: /sys/bus/pci/drivers/xe/.../sriov_admin/vf<n>/profile/exec_quantum_ms
+What: /sys/bus/pci/drivers/xe/.../sriov_admin/vf<n>/profile/preempt_timeout_us
+What: /sys/bus/pci/drivers/xe/.../sriov_admin/vf<n>/profile/sched_priority
+Date: October 2025
+KernelVersion: 6.19
+Contact: intel-xe@lists.freedesktop.org
+Description:
+ These files expose scheduling parameters for the PF and its VFs, and
+ are visible only on Intel Xe platforms that use time-sliced GPU sharing.
+ They can be changed even if VFs are enabled and running and reflect the
+ settings of all tiles/GTs assigned to the given function.
+
+ exec_quantum_ms: (RW) unsigned integer
+ The GT execution quantum (EQ) in [ms] for the given function.
+ Actual quantum value might be aligned per HW/FW requirements.
+
+ Default is 0 (unlimited).
+
+ preempt_timeout_us: (RW) unsigned integer
+ The GT preemption timeout in [us] of the given function.
+ Actual timeout value might be aligned per HW/FW requirements.
+
+ Default is 0 (unlimited).
+
+ sched_priority: (RW/RO) string
+ The GT scheduling priority of the given function.
+
+ "low" - function will be scheduled on the GPU for its EQ/PT
+ only if function has any work already submitted.
+
+ "normal" - functions will be scheduled on the GPU for its EQ/PT
+ irrespective of whether it has submitted a work or not.
+
+ "high" - function will be scheduled on the GPU for its EQ/PT
+ in the next time-slice after the current one completes
+ and function has a work submitted.
+
+ Default is "low".
+
+ When read, this file will display the current and available
+ scheduling priorities. The currently active priority level will
+ be enclosed in square brackets, like:
+
+ [low] normal high
+
+ This file can be read-only if changing the priority is not
+ supported.
+
+ Writes to these attributes may fail with errors like:
+ -EINVAL if provided input is malformed or not recognized,
+ -EPERM if change is not applicable on given HW/FW,
+ -EIO if FW refuses to change the provisioning.
+
+ Reads from these attributes may fail with:
+ -EUCLEAN if value is not consistent across all tiles/GTs.
+
+
+What: /sys/bus/pci/drivers/xe/.../sriov_admin/.bulk_profile/exec_quantum_ms
+What: /sys/bus/pci/drivers/xe/.../sriov_admin/.bulk_profile/preempt_timeout_us
+What: /sys/bus/pci/drivers/xe/.../sriov_admin/.bulk_profile/sched_priority
+Date: October 2025
+KernelVersion: 6.19
+Contact: intel-xe@lists.freedesktop.org
+Description:
+ These files allows bulk reconfiguration of the scheduling parameters
+ of the PF or VFs and are available only for Intel Xe platforms with
+ GPU sharing based on the time-slice basis. These scheduling parameters
+ can be changed even if VFs are enabled and running.
+
+ exec_quantum_ms: (WO) unsigned integer
+ The GT execution quantum (EQ) in [ms] to be applied to all functions.
+ See sriov_admin/{pf,vf<N>}/profile/exec_quantum_ms for more details.
+
+ preempt_timeout_us: (WO) unsigned integer
+ The GT preemption timeout (PT) in [us] to be applied to all functions.
+ See sriov_admin/{pf,vf<N>}/profile/preempt_timeout_us for more details.
+
+ sched_priority: (RW/RO) string
+ The GT scheduling priority to be applied for all functions.
+ See sriov_admin/{pf,vf<N>}/profile/sched_priority for more details.
+
+ Writes to these attributes may fail with errors like:
+ -EINVAL if provided input is malformed or not recognized,
+ -EPERM if change is not applicable on given HW/FW,
+ -EIO if FW refuses to change the provisioning.
+
+
+What: /sys/bus/pci/drivers/xe/.../sriov_admin/vf<n>/stop
+Date: October 2025
+KernelVersion: 6.19
+Contact: intel-xe@lists.freedesktop.org
+Description:
+ This file allows to control scheduling of the VF on the Intel Xe GPU
+ platforms. It allows to implement custom policy mechanism in case VFs
+ are misbehaving or triggering adverse events above defined thresholds.
+
+ stop: (WO) bool
+ All GT executions of given function shall be immediately stopped.
+ To allow scheduling this VF again, the VF FLR must be triggered.
+
+ Writes to this attribute may fail with errors like:
+ -EINVAL if provided input is malformed or not recognized,
+ -EPERM if change is not applicable on given HW/FW,
+ -EIO if FW refuses to change the scheduling.
+
+
+What: /sys/bus/pci/drivers/xe/.../sriov_admin/pf/device
+What: /sys/bus/pci/drivers/xe/.../sriov_admin/vf<n>/device
+Date: October 2025
+KernelVersion: 6.19
+Contact: intel-xe@lists.freedesktop.org
+Description:
+ These are symlinks to the underlying PCI device entry representing
+ given Xe SR-IOV function. For the PF, this link is always present.
+ For VFs, this link is present only for currently enabled VFs.
diff --git a/Documentation/ABI/testing/sysfs-driver-panfrost-profiling b/Documentation/ABI/testing/sysfs-driver-panfrost-profiling
new file mode 100644
index 000000000000..7597c420e54b
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-driver-panfrost-profiling
@@ -0,0 +1,10 @@
+What: /sys/bus/platform/drivers/panfrost/.../profiling
+Date: February 2024
+KernelVersion: 6.8.0
+Contact: Adrian Larumbe <adrian.larumbe@collabora.com>
+Description:
+ Get/set drm fdinfo's engine and cycles profiling status.
+ Valid values are:
+ 0: Don't enable fdinfo job profiling sources.
+ 1: Enable fdinfo job profiling sources, this enables both the GPU's
+ timestamp and cycle counter registers.
diff --git a/Documentation/ABI/testing/sysfs-driver-panthor-profiling b/Documentation/ABI/testing/sysfs-driver-panthor-profiling
new file mode 100644
index 000000000000..af05fccedc15
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-driver-panthor-profiling
@@ -0,0 +1,10 @@
+What: /sys/bus/platform/drivers/panthor/.../profiling
+Date: September 2024
+KernelVersion: 6.11.0
+Contact: Adrian Larumbe <adrian.larumbe@collabora.com>
+Description:
+ Bitmask to enable drm fdinfo's job profiling measurements.
+ Valid values are:
+ 0: Don't enable fdinfo job profiling sources.
+ 1: Enable GPU cycle measurements for running jobs.
+ 2: Enable GPU timestamp sampling for running jobs.
diff --git a/Documentation/ABI/testing/sysfs-driver-qaic b/Documentation/ABI/testing/sysfs-driver-qaic
new file mode 100644
index 000000000000..f794fd734163
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-driver-qaic
@@ -0,0 +1,18 @@
+What: /sys/bus/pci/drivers/qaic/XXXX:XX:XX.X/ce_count
+Date: May 2025
+KernelVersion: 6.17
+Contact: dri-devel@lists.freedesktop.org
+Description: Number of correctable errors received from device since driver is loaded.
+
+What: /sys/bus/pci/drivers/qaic/XXXX:XX:XX.X/ue_count
+Date: May 2025
+KernelVersion: 6.17
+Contact: dri-devel@lists.freedesktop.org
+Description: Number of uncorrectable errors received from device since driver is loaded.
+
+What: /sys/bus/pci/drivers/qaic/XXXX:XX:XX.X/ue_nonfatal_count
+Date: May 2025
+KernelVersion: 6.17
+Contact: dri-devel@lists.freedesktop.org
+Description: Number of uncorrectable non-fatal errors received from device since driver
+ is loaded.
diff --git a/Documentation/ABI/testing/sysfs-driver-qat b/Documentation/ABI/testing/sysfs-driver-qat
index 087842b1969e..b0561b9fc4eb 100644
--- a/Documentation/ABI/testing/sysfs-driver-qat
+++ b/Documentation/ABI/testing/sysfs-driver-qat
@@ -14,7 +14,7 @@ Description: (RW) Reports the current state of the QAT device. Write to
It is possible to transition the device from up to down only
if the device is up and vice versa.
- This attribute is only available for qat_4xxx devices.
+ This attribute is available for qat_4xxx and qat_6xxx devices.
What: /sys/bus/pci/devices/<BDF>/qat/cfg_services
Date: June 2022
@@ -23,11 +23,28 @@ Contact: qat-linux@intel.com
Description: (RW) Reports the current configuration of the QAT device.
Write to the file to change the configured services.
- The values are:
+ One or more services can be enabled per device.
+ Certain configurations are restricted to specific device types;
+ where applicable this is explicitly indicated, for example
+ (qat_6xxx) denotes applicability exclusively to that device series.
- * sym;asym: the device is configured for running crypto
- services
- * dc: the device is configured for running compression services
+ The available services include:
+
+ * sym: Configures the device for symmetric cryptographic operations.
+ * asym: Configures the device for asymmetric cryptographic operations.
+ * dc: Configures the device for compression and decompression
+ operations.
+ * dcc: Similar to dc, but with the additional dc chaining feature
+ enabled, cipher then compress (qat_6xxx), hash then compression.
+ If this is not required choose dc.
+ * decomp: Configures the device for decompression operations (qat_6xxx).
+
+ Service combinations are permitted for all services except dcc.
+ On QAT GEN4 devices (qat_4xxx driver) a maximum of two services can be
+ combined and on QAT GEN6 devices (qat_6xxx driver ) a maximum of three
+ services can be combined.
+ The order of services is not significant. For instance, sym;asym is
+ functionally equivalent to asym;sym.
It is possible to set the configuration only if the device
is in the `down` state (see /sys/bus/pci/devices/<BDF>/qat/state)
@@ -46,4 +63,105 @@ Description: (RW) Reports the current configuration of the QAT device.
# cat /sys/bus/pci/devices/<BDF>/qat/cfg_services
dc
- This attribute is only available for qat_4xxx devices.
+ This attribute is available for qat_4xxx and qat_6xxx devices.
+
+What: /sys/bus/pci/devices/<BDF>/qat/pm_idle_enabled
+Date: June 2023
+KernelVersion: 6.5
+Contact: qat-linux@intel.com
+Description: (RW) This configuration option provides a way to force the device into remaining in
+ the MAX power state.
+ If idle support is enabled the device will transition to the `MIN` power state when
+ idle, otherwise will stay in the MAX power state.
+ Write to the file to enable or disable idle support.
+
+ The values are:
+
+ * 0: idle support is disabled
+ * 1: idle support is enabled
+
+ Default value is 1.
+
+ It is possible to set the pm_idle_enabled value only if the device
+ is in the `down` state (see /sys/bus/pci/devices/<BDF>/qat/state)
+
+ The following example shows how to change the pm_idle_enabled of
+ a device::
+
+ # cat /sys/bus/pci/devices/<BDF>/qat/state
+ up
+ # cat /sys/bus/pci/devices/<BDF>/qat/pm_idle_enabled
+ 1
+ # echo down > /sys/bus/pci/devices/<BDF>/qat/state
+ # echo 0 > /sys/bus/pci/devices/<BDF>/qat/pm_idle_enabled
+ # echo up > /sys/bus/pci/devices/<BDF>/qat/state
+ # cat /sys/bus/pci/devices/<BDF>/qat/pm_idle_enabled
+ 0
+
+ This attribute is available for qat_4xxx and qat_6xxx devices.
+
+What: /sys/bus/pci/devices/<BDF>/qat/rp2srv
+Date: January 2024
+KernelVersion: 6.7
+Contact: qat-linux@intel.com
+Description:
+ (RW) This attribute provides a way for a user to query a
+ specific ring pair for the type of service that it is currently
+ configured for.
+
+ When written to, the value is cached and used to perform the
+ read operation. Allowed values are in the range 0 to N-1, where
+ N is the max number of ring pairs supported by a device. This
+ can be queried using the attribute qat/num_rps.
+
+ A read returns the service associated to the ring pair queried.
+
+ The values are:
+
+ * dc: the ring pair is configured for running compression services
+ * sym: the ring pair is configured for running symmetric crypto
+ services
+ * asym: the ring pair is configured for running asymmetric crypto
+ services
+
+ Example usage::
+
+ # echo 1 > /sys/bus/pci/devices/<BDF>/qat/rp2srv
+ # cat /sys/bus/pci/devices/<BDF>/qat/rp2srv
+ sym
+
+ This attribute is available for qat_4xxx and qat_6xxx devices.
+
+What: /sys/bus/pci/devices/<BDF>/qat/num_rps
+Date: January 2024
+KernelVersion: 6.7
+Contact: qat-linux@intel.com
+Description:
+ (RO) Returns the number of ring pairs that a single device has.
+
+ Example usage::
+
+ # cat /sys/bus/pci/devices/<BDF>/qat/num_rps
+ 64
+
+ This attribute is available for qat_4xxx and qat_6xxx devices.
+
+What: /sys/bus/pci/devices/<BDF>/qat/auto_reset
+Date: May 2024
+KernelVersion: 6.9
+Contact: qat-linux@intel.com
+Description: (RW) Reports the current state of the autoreset feature
+ for a QAT device
+
+ Write to the attribute to enable or disable device auto reset.
+
+ Device auto reset is disabled by default.
+
+ The values are:
+
+ * 1/Yy/on: auto reset enabled. If the device encounters an
+ unrecoverable error, it will be reset automatically.
+ * 0/Nn/off: auto reset disabled. If the device encounters an
+ unrecoverable error, it will not be reset.
+
+ This attribute is available for qat_4xxx and qat_6xxx devices.
diff --git a/Documentation/ABI/testing/sysfs-driver-qat_ras b/Documentation/ABI/testing/sysfs-driver-qat_ras
new file mode 100644
index 000000000000..82ceb04445ec
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-driver-qat_ras
@@ -0,0 +1,41 @@
+What: /sys/bus/pci/devices/<BDF>/qat_ras/errors_correctable
+Date: January 2024
+KernelVersion: 6.7
+Contact: qat-linux@intel.com
+Description: (RO) Reports the number of correctable errors detected by the device.
+
+ This attribute is only available for qat_4xxx and qat_6xxx devices.
+
+What: /sys/bus/pci/devices/<BDF>/qat_ras/errors_nonfatal
+Date: January 2024
+KernelVersion: 6.7
+Contact: qat-linux@intel.com
+Description: (RO) Reports the number of non fatal errors detected by the device.
+
+ This attribute is only available for qat_4xxx and qat_6xxx devices.
+
+What: /sys/bus/pci/devices/<BDF>/qat_ras/errors_fatal
+Date: January 2024
+KernelVersion: 6.7
+Contact: qat-linux@intel.com
+Description: (RO) Reports the number of fatal errors detected by the device.
+
+ This attribute is only available for qat_4xxx and qat_6xxx devices.
+
+What: /sys/bus/pci/devices/<BDF>/qat_ras/reset_error_counters
+Date: January 2024
+KernelVersion: 6.7
+Contact: qat-linux@intel.com
+Description: (WO) Write to resets all error counters of a device.
+
+ The following example reports how to reset the counters::
+
+ # echo 1 > /sys/bus/pci/devices/<BDF>/qat_ras/reset_error_counters
+ # cat /sys/bus/pci/devices/<BDF>/qat_ras/errors_correctable
+ 0
+ # cat /sys/bus/pci/devices/<BDF>/qat_ras/errors_nonfatal
+ 0
+ # cat /sys/bus/pci/devices/<BDF>/qat_ras/errors_fatal
+ 0
+
+ This attribute is only available for qat_4xxx and qat_6xxx devices.
diff --git a/Documentation/ABI/testing/sysfs-driver-qat_rl b/Documentation/ABI/testing/sysfs-driver-qat_rl
new file mode 100644
index 000000000000..d534f89b4971
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-driver-qat_rl
@@ -0,0 +1,226 @@
+What: /sys/bus/pci/devices/<BDF>/qat_rl/sla_op
+Date: January 2024
+KernelVersion: 6.7
+Contact: qat-linux@intel.com
+Description:
+ (WO) This attribute is used to perform an operation on an SLA.
+ The supported operations are: add, update, rm, rm_all, and get.
+
+ Input values must be filled through the associated attribute in
+ this group before a write to this file.
+ If the operation completes successfully, the associated
+ attributes will be updated.
+ The associated attributes are: cir, pir, srv, rp, and id.
+
+ Supported operations:
+
+ * add: Creates a new SLA with the provided inputs from user.
+ * Inputs: cir, pir, srv, and rp
+ * Output: id
+
+ * get: Returns the configuration of the specified SLA in id attribute
+ * Inputs: id
+ * Outputs: cir, pir, srv, and rp
+
+ * update: Updates the SLA with new values set in the following attributes
+ * Inputs: id, cir, and pir
+
+ * rm: Removes the specified SLA in the id attribute.
+ * Inputs: id
+
+ * rm_all: Removes all the configured SLAs.
+ * Inputs: None
+
+ This attribute is only available for qat_4xxx and qat_6xxx devices.
+
+What: /sys/bus/pci/devices/<BDF>/qat_rl/rp
+Date: January 2024
+KernelVersion: 6.7
+Contact: qat-linux@intel.com
+Description:
+ (RW) When read, reports the current assigned ring pairs for the
+ queried SLA.
+ When wrote to, configures the ring pairs associated to a new SLA.
+
+ The value is a 64-bit bit mask and is written/displayed in hex.
+ Each bit of this mask represents a single ring pair i.e.,
+ bit 1 == ring pair id 0; bit 3 == ring pair id 2.
+
+ Selected ring pairs must to be assigned to a single service,
+ i.e. the one provided with the srv attribute. The service
+ assigned to a certain ring pair can be checked by querying
+ the attribute qat/rp2srv.
+
+ The maximum number of ring pairs is 4 per SLA.
+
+ Applicability in sla_op:
+
+ * WRITE: add operation
+ * READ: get operation
+
+ Example usage::
+
+ ## Read
+ # echo 4 > /sys/bus/pci/devices/<BDF>/qat_rl/id
+ # cat /sys/bus/pci/devices/<BDF>/qat_rl/rp
+ 0x5
+
+ ## Write
+ # echo 0x5 > /sys/bus/pci/devices/<BDF>/qat_rl/rp
+
+ This attribute is only available for qat_4xxx and qat_6xxx devices.
+
+What: /sys/bus/pci/devices/<BDF>/qat_rl/id
+Date: January 2024
+KernelVersion: 6.7
+Contact: qat-linux@intel.com
+Description:
+ (RW) If written to, the value is used to retrieve a particular
+ SLA and operate on it.
+ This is valid only for the following operations: update, rm,
+ and get.
+ A read of this attribute is only guaranteed to have correct data
+ after creation of an SLA.
+
+ Applicability in sla_op:
+
+ * WRITE: rm and update operations
+ * READ: add and get operations
+
+ Example usage::
+
+ ## Read
+ ## Set attributes e.g. cir, pir, srv, etc
+ # echo "add" > /sys/bus/pci/devices/<BDF>/qat_rl/sla_op
+ # cat /sys/bus/pci/devices/<BDF>/qat_rl/id
+ 4
+
+ ## Write
+ # echo 7 > /sys/bus/pci/devices/<BDF>/qat_rl/id
+ # echo "get" > /sys/bus/pci/devices/<BDF>/qat_rl/sla_op
+ # cat /sys/bus/pci/devices/<BDF>/qat_rl/rp
+ 0x5 ## ring pair ID 0 and ring pair ID 2
+
+ This attribute is only available for qat_4xxx and qat_6xxx devices.
+
+What: /sys/bus/pci/devices/<BDF>/qat_rl/cir
+Date: January 2024
+KernelVersion: 6.7
+Contact: qat-linux@intel.com
+Description:
+ (RW) Committed information rate (CIR). Rate guaranteed to be
+ achieved by a particular SLA. The value is expressed in
+ permille scale, i.e. 1000 refers to the maximum device
+ throughput for a selected service.
+
+ After sending a "get" to sla_op, this will be populated with the
+ CIR for that queried SLA.
+ Write to this file before sending an "add/update" sla_op, to set
+ the SLA to the specified value.
+
+ Applicability in sla_op:
+
+ * WRITE: add and update operations
+ * READ: get operation
+
+ Example usage::
+
+ ## Write
+ # echo 500 > /sys/bus/pci/devices/<BDF>/qat_rl/cir
+ # echo "add" /sys/bus/pci/devices/<BDF>/qat_rl/sla_op
+
+ ## Read
+ # echo 4 > /sys/bus/pci/devices/<BDF>/qat_rl/id
+ # echo "get" > /sys/bus/pci/devices/<BDF>/qat_rl/sla_op
+ # cat /sys/bus/pci/devices/<BDF>/qat_rl/cir
+ 500
+
+ This attribute is only available for qat_4xxx and qat_6xxx devices.
+
+What: /sys/bus/pci/devices/<BDF>/qat_rl/pir
+Date: January 2024
+KernelVersion: 6.7
+Contact: qat-linux@intel.com
+Description:
+ (RW) Peak information rate (PIR). The maximum rate that can be
+ achieved by that particular SLA. An SLA can reach a value
+ between CIR and PIR when the device is not fully utilized by
+ requests from other users (assigned to different SLAs).
+
+ After sending a "get" to sla_op, this will be populated with the
+ PIR for that queried SLA.
+ Write to this file before sending an "add/update" sla_op, to set
+ the SLA to the specified value.
+
+ Applicability in sla_op:
+
+ * WRITE: add and update operations
+ * READ: get operation
+
+ Example usage::
+
+ ## Write
+ # echo 750 > /sys/bus/pci/devices/<BDF>/qat_rl/pir
+ # echo "add" > /sys/bus/pci/devices/<BDF>/qat_rl/sla_op
+
+ ## Read
+ # echo 4 > /sys/bus/pci/devices/<BDF>/qat_rl/id
+ # echo "get" > /sys/bus/pci/devices/<BDF>/qat_rl/sla_op
+ # cat /sys/bus/pci/devices/<BDF>/qat_rl/pir
+ 750
+
+ This attribute is only available for qat_4xxx and qat_6xxx devices.
+
+What: /sys/bus/pci/devices/<BDF>/qat_rl/srv
+Date: January 2024
+KernelVersion: 6.7
+Contact: qat-linux@intel.com
+Description:
+ (RW) Service (SRV). Represents the service (sym, asym, dc)
+ associated to an SLA.
+ Can be written to or queried to set/show the SRV type for an SLA.
+ The SRV attribute is used to specify the SRV type before adding
+ an SLA. After an SLA is configured, reports the service
+ associated to that SLA.
+
+ Applicability in sla_op:
+
+ * WRITE: add and update operations
+ * READ: get operation
+
+ Example usage::
+
+ ## Write
+ # echo "dc" > /sys/bus/pci/devices/<BDF>/qat_rl/srv
+ # echo "add" > /sys/bus/pci/devices/<BDF>/qat_rl/sla_op
+ # cat /sys/bus/pci/devices/<BDF>/qat_rl/id
+ 4
+
+ ## Read
+ # echo 4 > /sys/bus/pci/devices/<BDF>/qat_rl/id
+ # echo "get" > /sys/bus/pci/devices/<BDF>/qat_rl/sla_op
+ # cat /sys/bus/pci/devices/<BDF>/qat_rl/srv
+ dc
+
+ This attribute is only available for qat_4xxx and qat_6xxx devices.
+
+What: /sys/bus/pci/devices/<BDF>/qat_rl/cap_rem
+Date: January 2024
+KernelVersion: 6.7
+Contact: qat-linux@intel.com
+Description:
+ (RW) This file will return the remaining capability for a
+ particular service/sla. This is the remaining value that a new
+ SLA can be set to or a current SLA can be increased with.
+
+ Example usage::
+
+ # echo "asym" > /sys/bus/pci/devices/<BDF>/qat_rl/cap_rem
+ # cat /sys/bus/pci/devices/<BDF>/qat_rl/cap_rem
+ 250
+ # echo 250 > /sys/bus/pci/devices/<BDF>/qat_rl/cir
+ # echo "add" > /sys/bus/pci/devices/<BDF>/qat_rl/sla_op
+ # cat /sys/bus/pci/devices/<BDF>/qat_rl/cap_rem
+ 0
+
+ This attribute is only available for qat_4xxx and qat_6xxx devices.
diff --git a/Documentation/ABI/testing/sysfs-driver-samsung-laptop b/Documentation/ABI/testing/sysfs-driver-samsung-laptop
index 28c9c040de5d..408cb0ddf4aa 100644
--- a/Documentation/ABI/testing/sysfs-driver-samsung-laptop
+++ b/Documentation/ABI/testing/sysfs-driver-samsung-laptop
@@ -20,17 +20,6 @@ Description: Some Samsung laptops have different "performance levels"
and it's still unknown if this value even changes
anything, other than making the user feel a bit better.
-What: /sys/devices/platform/samsung/battery_life_extender
-Date: December 1, 2011
-KernelVersion: 3.3
-Contact: Corentin Chary <corentin.chary@gmail.com>
-Description: Max battery charge level can be modified, battery cycle
- life can be extended by reducing the max battery charge
- level.
-
- - 0 means normal battery mode (100% charge)
- - 1 means battery life extender mode (80% charge)
-
What: /sys/devices/platform/samsung/usb_charge
Date: December 1, 2011
KernelVersion: 3.3
diff --git a/Documentation/ABI/testing/sysfs-driver-spi-intel b/Documentation/ABI/testing/sysfs-driver-spi-intel
new file mode 100644
index 000000000000..d7c9139ddbf3
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-driver-spi-intel
@@ -0,0 +1,20 @@
+What: /sys/devices/.../intel_spi_protected
+Date: Feb 2025
+KernelVersion: 6.13
+Contact: Alexander Usyskin <alexander.usyskin@intel.com>
+Description: This attribute allows the userspace to check if the
+ Intel SPI flash controller is write protected from the host.
+
+What: /sys/devices/.../intel_spi_locked
+Date: Feb 2025
+KernelVersion: 6.13
+Contact: Alexander Usyskin <alexander.usyskin@intel.com>
+Description: This attribute allows the user space to check if the
+ Intel SPI flash controller locks supported opcodes.
+
+What: /sys/devices/.../intel_spi_bios_locked
+Date: Feb 2025
+KernelVersion: 6.13
+Contact: Alexander Usyskin <alexander.usyskin@intel.com>
+Description: This attribute allows the user space to check if the
+ Intel SPI flash controller BIOS region is locked for writes.
diff --git a/Documentation/ABI/testing/sysfs-driver-tegra-fuse b/Documentation/ABI/testing/sysfs-driver-tegra-fuse
index 69f5af632657..b8936fad2ccf 100644
--- a/Documentation/ABI/testing/sysfs-driver-tegra-fuse
+++ b/Documentation/ABI/testing/sysfs-driver-tegra-fuse
@@ -3,7 +3,7 @@ Date: February 2014
Contact: Peter De Schrijver <pdeschrijver@nvidia.com>
Description: read-only access to the efuses on Tegra20, Tegra30, Tegra114
and Tegra124 SoC's from NVIDIA. The efuses contain write once
- data programmed at the factory. The data is layed out in 32bit
+ data programmed at the factory. The data is laid out in 32bit
words in LSB first format. Each bit represents a single value
as decoded from the fuse registers. Bits order/assignment
exactly matches the HW registers, including any unused bits.
diff --git a/Documentation/ABI/testing/sysfs-driver-typec-displayport b/Documentation/ABI/testing/sysfs-driver-typec-displayport
index 256c87c5219a..314acd54e13e 100644
--- a/Documentation/ABI/testing/sysfs-driver-typec-displayport
+++ b/Documentation/ABI/testing/sysfs-driver-typec-displayport
@@ -62,3 +62,13 @@ Description:
by VESA DisplayPort Alt Mode on USB Type-C Standard.
- 0 when HPD’s logical state is low (HPD_Low) as defined by
VESA DisplayPort Alt Mode on USB Type-C Standard.
+
+What: /sys/bus/typec/devices/.../displayport/irq_hpd
+Date: June 2025
+Contact: RD Babiera <rdbabiera@google.com>
+Description:
+ IRQ_HPD events are sent over the USB PD protocol in Status Update and
+ Attention messages. IRQ_HPD can only be asserted when HPD is high,
+ and is asserted when an IRQ_HPD has been issued since the last Status
+ Update. This is a read only node that returns the number of IRQ events
+ raised in the driver's lifetime.
diff --git a/Documentation/ABI/testing/sysfs-driver-ufs b/Documentation/ABI/testing/sysfs-driver-ufs
index 228aa43e14ed..a90612ab5780 100644
--- a/Documentation/ABI/testing/sysfs-driver-ufs
+++ b/Documentation/ABI/testing/sysfs-driver-ufs
@@ -711,7 +711,7 @@ Description: This file shows the thin provisioning type. This is one of
The file is read only.
-What: /sys/class/scsi_device/*/device/unit_descriptor/physical_memory_resourse_count
+What: /sys/class/scsi_device/*/device/unit_descriptor/physical_memory_resource_count
Date: February 2018
Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
Description: This file shows the total physical memory resources. This is
@@ -920,14 +920,16 @@ Description: This file shows whether the configuration descriptor is locked.
What: /sys/bus/platform/drivers/ufshcd/*/attributes/max_number_of_rtt
What: /sys/bus/platform/devices/*.ufs/attributes/max_number_of_rtt
-Date: February 2018
-Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
+Date: May 2024
+Contact: Avri Altman <avri.altman@wdc.com>
Description: This file provides the maximum current number of
- outstanding RTTs in device that is allowed. The full
- information about the attribute could be found at
- UFS specifications 2.1.
+ outstanding RTTs in device that is allowed. bMaxNumOfRTT is a
+ read-write persistent attribute and is equal to two after device
+ manufacturing. It shall not be set to a value greater than
+ bDeviceRTTCap value, and it may be set only when the hw queues are
+ empty.
- The file is read only.
+ The file is read write.
What: /sys/bus/platform/drivers/ufshcd/*/attributes/exception_event_control
What: /sys/bus/platform/devices/*.ufs/attributes/exception_event_control
@@ -994,7 +996,7 @@ Description: This file shows the amount of physical memory needed
What: /sys/bus/platform/drivers/ufshcd/*/rpm_lvl
What: /sys/bus/platform/devices/*.ufs/rpm_lvl
Date: September 2014
-Contact: Subhash Jadavani <subhashj@codeaurora.org>
+Contact: Can Guo <quic_cang@quicinc.com>
Description: This entry could be used to set or show the UFS device
runtime power management level. The current driver
implementation supports 7 levels with next target states:
@@ -1021,7 +1023,7 @@ Description: This entry could be used to set or show the UFS device
What: /sys/bus/platform/drivers/ufshcd/*/rpm_target_dev_state
What: /sys/bus/platform/devices/*.ufs/rpm_target_dev_state
Date: February 2018
-Contact: Subhash Jadavani <subhashj@codeaurora.org>
+Contact: Can Guo <quic_cang@quicinc.com>
Description: This entry shows the target power mode of an UFS device
for the chosen runtime power management level.
@@ -1030,7 +1032,7 @@ Description: This entry shows the target power mode of an UFS device
What: /sys/bus/platform/drivers/ufshcd/*/rpm_target_link_state
What: /sys/bus/platform/devices/*.ufs/rpm_target_link_state
Date: February 2018
-Contact: Subhash Jadavani <subhashj@codeaurora.org>
+Contact: Can Guo <quic_cang@quicinc.com>
Description: This entry shows the target state of an UFS UIC link
for the chosen runtime power management level.
@@ -1039,7 +1041,7 @@ Description: This entry shows the target state of an UFS UIC link
What: /sys/bus/platform/drivers/ufshcd/*/spm_lvl
What: /sys/bus/platform/devices/*.ufs/spm_lvl
Date: September 2014
-Contact: Subhash Jadavani <subhashj@codeaurora.org>
+Contact: Can Guo <quic_cang@quicinc.com>
Description: This entry could be used to set or show the UFS device
system power management level. The current driver
implementation supports 7 levels with next target states:
@@ -1066,7 +1068,7 @@ Description: This entry could be used to set or show the UFS device
What: /sys/bus/platform/drivers/ufshcd/*/spm_target_dev_state
What: /sys/bus/platform/devices/*.ufs/spm_target_dev_state
Date: February 2018
-Contact: Subhash Jadavani <subhashj@codeaurora.org>
+Contact: Can Guo <quic_cang@quicinc.com>
Description: This entry shows the target power mode of an UFS device
for the chosen system power management level.
@@ -1075,7 +1077,7 @@ Description: This entry shows the target power mode of an UFS device
What: /sys/bus/platform/drivers/ufshcd/*/spm_target_link_state
What: /sys/bus/platform/devices/*.ufs/spm_target_link_state
Date: February 2018
-Contact: Subhash Jadavani <subhashj@codeaurora.org>
+Contact: Can Guo <quic_cang@quicinc.com>
Description: This entry shows the target state of an UFS UIC link
for the chosen system power management level.
@@ -1084,7 +1086,7 @@ Description: This entry shows the target state of an UFS UIC link
What: /sys/bus/platform/drivers/ufshcd/*/monitor/monitor_enable
What: /sys/bus/platform/devices/*.ufs/monitor/monitor_enable
Date: January 2021
-Contact: Can Guo <cang@codeaurora.org>
+Contact: Can Guo <quic_cang@quicinc.com>
Description: This file shows the status of performance monitor enablement
and it can be used to start/stop the monitor. When the monitor
is stopped, the performance data collected is also cleared.
@@ -1092,7 +1094,7 @@ Description: This file shows the status of performance monitor enablement
What: /sys/bus/platform/drivers/ufshcd/*/monitor/monitor_chunk_size
What: /sys/bus/platform/devices/*.ufs/monitor/monitor_chunk_size
Date: January 2021
-Contact: Can Guo <cang@codeaurora.org>
+Contact: Can Guo <quic_cang@quicinc.com>
Description: This file tells the monitor to focus on requests transferring
data of specific chunk size (in Bytes). 0 means any chunk size.
It can only be changed when monitor is disabled.
@@ -1100,7 +1102,7 @@ Description: This file tells the monitor to focus on requests transferring
What: /sys/bus/platform/drivers/ufshcd/*/monitor/read_total_sectors
What: /sys/bus/platform/devices/*.ufs/monitor/read_total_sectors
Date: January 2021
-Contact: Can Guo <cang@codeaurora.org>
+Contact: Can Guo <quic_cang@quicinc.com>
Description: This file shows how many sectors (in 512 Bytes) have been
sent from device to host after monitor gets started.
@@ -1109,7 +1111,7 @@ Description: This file shows how many sectors (in 512 Bytes) have been
What: /sys/bus/platform/drivers/ufshcd/*/monitor/read_total_busy
What: /sys/bus/platform/devices/*.ufs/monitor/read_total_busy
Date: January 2021
-Contact: Can Guo <cang@codeaurora.org>
+Contact: Can Guo <quic_cang@quicinc.com>
Description: This file shows how long (in micro seconds) has been spent
sending data from device to host after monitor gets started.
@@ -1118,7 +1120,7 @@ Description: This file shows how long (in micro seconds) has been spent
What: /sys/bus/platform/drivers/ufshcd/*/monitor/read_nr_requests
What: /sys/bus/platform/devices/*.ufs/monitor/read_nr_requests
Date: January 2021
-Contact: Can Guo <cang@codeaurora.org>
+Contact: Can Guo <quic_cang@quicinc.com>
Description: This file shows how many read requests have been sent after
monitor gets started.
@@ -1127,7 +1129,7 @@ Description: This file shows how many read requests have been sent after
What: /sys/bus/platform/drivers/ufshcd/*/monitor/read_req_latency_max
What: /sys/bus/platform/devices/*.ufs/monitor/read_req_latency_max
Date: January 2021
-Contact: Can Guo <cang@codeaurora.org>
+Contact: Can Guo <quic_cang@quicinc.com>
Description: This file shows the maximum latency (in micro seconds) of
read requests after monitor gets started.
@@ -1136,7 +1138,7 @@ Description: This file shows the maximum latency (in micro seconds) of
What: /sys/bus/platform/drivers/ufshcd/*/monitor/read_req_latency_min
What: /sys/bus/platform/devices/*.ufs/monitor/read_req_latency_min
Date: January 2021
-Contact: Can Guo <cang@codeaurora.org>
+Contact: Can Guo <quic_cang@quicinc.com>
Description: This file shows the minimum latency (in micro seconds) of
read requests after monitor gets started.
@@ -1145,7 +1147,7 @@ Description: This file shows the minimum latency (in micro seconds) of
What: /sys/bus/platform/drivers/ufshcd/*/monitor/read_req_latency_avg
What: /sys/bus/platform/devices/*.ufs/monitor/read_req_latency_avg
Date: January 2021
-Contact: Can Guo <cang@codeaurora.org>
+Contact: Can Guo <quic_cang@quicinc.com>
Description: This file shows the average latency (in micro seconds) of
read requests after monitor gets started.
@@ -1154,7 +1156,7 @@ Description: This file shows the average latency (in micro seconds) of
What: /sys/bus/platform/drivers/ufshcd/*/monitor/read_req_latency_sum
What: /sys/bus/platform/devices/*.ufs/monitor/read_req_latency_sum
Date: January 2021
-Contact: Can Guo <cang@codeaurora.org>
+Contact: Can Guo <quic_cang@quicinc.com>
Description: This file shows the total latency (in micro seconds) of
read requests sent after monitor gets started.
@@ -1163,7 +1165,7 @@ Description: This file shows the total latency (in micro seconds) of
What: /sys/bus/platform/drivers/ufshcd/*/monitor/write_total_sectors
What: /sys/bus/platform/devices/*.ufs/monitor/write_total_sectors
Date: January 2021
-Contact: Can Guo <cang@codeaurora.org>
+Contact: Can Guo <quic_cang@quicinc.com>
Description: This file shows how many sectors (in 512 Bytes) have been sent
from host to device after monitor gets started.
@@ -1172,7 +1174,7 @@ Description: This file shows how many sectors (in 512 Bytes) have been sent
What: /sys/bus/platform/drivers/ufshcd/*/monitor/write_total_busy
What: /sys/bus/platform/devices/*.ufs/monitor/write_total_busy
Date: January 2021
-Contact: Can Guo <cang@codeaurora.org>
+Contact: Can Guo <quic_cang@quicinc.com>
Description: This file shows how long (in micro seconds) has been spent
sending data from host to device after monitor gets started.
@@ -1181,7 +1183,7 @@ Description: This file shows how long (in micro seconds) has been spent
What: /sys/bus/platform/drivers/ufshcd/*/monitor/write_nr_requests
What: /sys/bus/platform/devices/*.ufs/monitor/write_nr_requests
Date: January 2021
-Contact: Can Guo <cang@codeaurora.org>
+Contact: Can Guo <quic_cang@quicinc.com>
Description: This file shows how many write requests have been sent after
monitor gets started.
@@ -1190,7 +1192,7 @@ Description: This file shows how many write requests have been sent after
What: /sys/bus/platform/drivers/ufshcd/*/monitor/write_req_latency_max
What: /sys/bus/platform/devices/*.ufs/monitor/write_req_latency_max
Date: January 2021
-Contact: Can Guo <cang@codeaurora.org>
+Contact: Can Guo <quic_cang@quicinc.com>
Description: This file shows the maximum latency (in micro seconds) of write
requests after monitor gets started.
@@ -1199,7 +1201,7 @@ Description: This file shows the maximum latency (in micro seconds) of write
What: /sys/bus/platform/drivers/ufshcd/*/monitor/write_req_latency_min
What: /sys/bus/platform/devices/*.ufs/monitor/write_req_latency_min
Date: January 2021
-Contact: Can Guo <cang@codeaurora.org>
+Contact: Can Guo <quic_cang@quicinc.com>
Description: This file shows the minimum latency (in micro seconds) of write
requests after monitor gets started.
@@ -1208,7 +1210,7 @@ Description: This file shows the minimum latency (in micro seconds) of write
What: /sys/bus/platform/drivers/ufshcd/*/monitor/write_req_latency_avg
What: /sys/bus/platform/devices/*.ufs/monitor/write_req_latency_avg
Date: January 2021
-Contact: Can Guo <cang@codeaurora.org>
+Contact: Can Guo <quic_cang@quicinc.com>
Description: This file shows the average latency (in micro seconds) of write
requests after monitor gets started.
@@ -1217,16 +1219,65 @@ Description: This file shows the average latency (in micro seconds) of write
What: /sys/bus/platform/drivers/ufshcd/*/monitor/write_req_latency_sum
What: /sys/bus/platform/devices/*.ufs/monitor/write_req_latency_sum
Date: January 2021
-Contact: Can Guo <cang@codeaurora.org>
+Contact: Can Guo <quic_cang@quicinc.com>
Description: This file shows the total latency (in micro seconds) of write
requests after monitor gets started.
The file is read only.
+What: /sys/bus/platform/drivers/ufshcd/*/power_info/lane
+What: /sys/bus/platform/devices/*.ufs/power_info/lane
+Date: September 2023
+Contact: Can Guo <quic_cang@quicinc.com>
+Description: This file shows how many lanes are enabled on the UFS link,
+ i.e., an output 2 means UFS link is operating with 2 lanes.
+
+ The file is read only.
+
+What: /sys/bus/platform/drivers/ufshcd/*/power_info/mode
+What: /sys/bus/platform/devices/*.ufs/power_info/mode
+Date: September 2023
+Contact: Can Guo <quic_cang@quicinc.com>
+Description: This file shows the PA power mode of UFS.
+
+ The file is read only.
+
+What: /sys/bus/platform/drivers/ufshcd/*/power_info/rate
+What: /sys/bus/platform/devices/*.ufs/power_info/rate
+Date: September 2023
+Contact: Can Guo <quic_cang@quicinc.com>
+Description: This file shows the speed rate of UFS link.
+
+ The file is read only.
+
+What: /sys/bus/platform/drivers/ufshcd/*/power_info/gear
+What: /sys/bus/platform/devices/*.ufs/power_info/gear
+Date: September 2023
+Contact: Can Guo <quic_cang@quicinc.com>
+Description: This file shows the gear of UFS link.
+
+ The file is read only.
+
+What: /sys/bus/platform/drivers/ufshcd/*/power_info/dev_pm
+What: /sys/bus/platform/devices/*.ufs/power_info/dev_pm
+Date: September 2023
+Contact: Can Guo <quic_cang@quicinc.com>
+Description: This file shows the UFS device power mode.
+
+ The file is read only.
+
+What: /sys/bus/platform/drivers/ufshcd/*/power_info/link_state
+What: /sys/bus/platform/devices/*.ufs/power_info/link_state
+Date: September 2023
+Contact: Can Guo <quic_cang@quicinc.com>
+Description: This file shows the state of UFS link.
+
+ The file is read only.
+
What: /sys/bus/platform/drivers/ufshcd/*/device_descriptor/wb_presv_us_en
What: /sys/bus/platform/devices/*.ufs/device_descriptor/wb_presv_us_en
Date: June 2020
-Contact: Asutosh Das <asutoshd@codeaurora.org>
+Contact: Asutosh Das <quic_asutoshd@quicinc.com>
Description: This entry shows if preserve user-space was configured
The file is read only.
@@ -1234,7 +1285,7 @@ Description: This entry shows if preserve user-space was configured
What: /sys/bus/platform/drivers/ufshcd/*/device_descriptor/wb_shared_alloc_units
What: /sys/bus/platform/devices/*.ufs/device_descriptor/wb_shared_alloc_units
Date: June 2020
-Contact: Asutosh Das <asutoshd@codeaurora.org>
+Contact: Asutosh Das <quic_asutoshd@quicinc.com>
Description: This entry shows the shared allocated units of WB buffer
The file is read only.
@@ -1242,7 +1293,7 @@ Description: This entry shows the shared allocated units of WB buffer
What: /sys/bus/platform/drivers/ufshcd/*/device_descriptor/wb_type
What: /sys/bus/platform/devices/*.ufs/device_descriptor/wb_type
Date: June 2020
-Contact: Asutosh Das <asutoshd@codeaurora.org>
+Contact: Asutosh Das <quic_asutoshd@quicinc.com>
Description: This entry shows the configured WB type.
0x1 for shared buffer mode. 0x0 for dedicated buffer mode.
@@ -1251,7 +1302,7 @@ Description: This entry shows the configured WB type.
What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/wb_buff_cap_adj
What: /sys/bus/platform/devices/*.ufs/geometry_descriptor/wb_buff_cap_adj
Date: June 2020
-Contact: Asutosh Das <asutoshd@codeaurora.org>
+Contact: Asutosh Das <quic_asutoshd@quicinc.com>
Description: This entry shows the total user-space decrease in shared
buffer mode.
The value of this parameter is 3 for TLC NAND when SLC mode
@@ -1262,7 +1313,7 @@ Description: This entry shows the total user-space decrease in shared
What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/wb_max_alloc_units
What: /sys/bus/platform/devices/*.ufs/geometry_descriptor/wb_max_alloc_units
Date: June 2020
-Contact: Asutosh Das <asutoshd@codeaurora.org>
+Contact: Asutosh Das <quic_asutoshd@quicinc.com>
Description: This entry shows the Maximum total WriteBooster Buffer size
which is supported by the entire device.
@@ -1271,7 +1322,7 @@ Description: This entry shows the Maximum total WriteBooster Buffer size
What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/wb_max_wb_luns
What: /sys/bus/platform/devices/*.ufs/geometry_descriptor/wb_max_wb_luns
Date: June 2020
-Contact: Asutosh Das <asutoshd@codeaurora.org>
+Contact: Asutosh Das <quic_asutoshd@quicinc.com>
Description: This entry shows the maximum number of luns that can support
WriteBooster.
@@ -1280,7 +1331,7 @@ Description: This entry shows the maximum number of luns that can support
What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/wb_sup_red_type
What: /sys/bus/platform/devices/*.ufs/geometry_descriptor/wb_sup_red_type
Date: June 2020
-Contact: Asutosh Das <asutoshd@codeaurora.org>
+Contact: Asutosh Das <quic_asutoshd@quicinc.com>
Description: The supportability of user space reduction mode
and preserve user space mode.
00h: WriteBooster Buffer can be configured only in
@@ -1295,7 +1346,7 @@ Description: The supportability of user space reduction mode
What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/wb_sup_wb_type
What: /sys/bus/platform/devices/*.ufs/geometry_descriptor/wb_sup_wb_type
Date: June 2020
-Contact: Asutosh Das <asutoshd@codeaurora.org>
+Contact: Asutosh Das <quic_asutoshd@quicinc.com>
Description: The supportability of WriteBooster Buffer type.
=== ==========================================================
@@ -1310,7 +1361,7 @@ Description: The supportability of WriteBooster Buffer type.
What: /sys/bus/platform/drivers/ufshcd/*/flags/wb_enable
What: /sys/bus/platform/devices/*.ufs/flags/wb_enable
Date: June 2020
-Contact: Asutosh Das <asutoshd@codeaurora.org>
+Contact: Asutosh Das <quic_asutoshd@quicinc.com>
Description: This entry shows the status of WriteBooster.
== ============================
@@ -1323,7 +1374,7 @@ Description: This entry shows the status of WriteBooster.
What: /sys/bus/platform/drivers/ufshcd/*/flags/wb_flush_en
What: /sys/bus/platform/devices/*.ufs/flags/wb_flush_en
Date: June 2020
-Contact: Asutosh Das <asutoshd@codeaurora.org>
+Contact: Asutosh Das <quic_asutoshd@quicinc.com>
Description: This entry shows if flush is enabled.
== =================================
@@ -1336,7 +1387,7 @@ Description: This entry shows if flush is enabled.
What: /sys/bus/platform/drivers/ufshcd/*/flags/wb_flush_during_h8
What: /sys/bus/platform/devices/*.ufs/flags/wb_flush_during_h8
Date: June 2020
-Contact: Asutosh Das <asutoshd@codeaurora.org>
+Contact: Asutosh Das <quic_asutoshd@quicinc.com>
Description: Flush WriteBooster Buffer during hibernate state.
== =================================================
@@ -1351,7 +1402,7 @@ Description: Flush WriteBooster Buffer during hibernate state.
What: /sys/bus/platform/drivers/ufshcd/*/attributes/wb_avail_buf
What: /sys/bus/platform/devices/*.ufs/attributes/wb_avail_buf
Date: June 2020
-Contact: Asutosh Das <asutoshd@codeaurora.org>
+Contact: Asutosh Das <quic_asutoshd@quicinc.com>
Description: This entry shows the amount of unused WriteBooster buffer
available.
@@ -1360,7 +1411,7 @@ Description: This entry shows the amount of unused WriteBooster buffer
What: /sys/bus/platform/drivers/ufshcd/*/attributes/wb_cur_buf
What: /sys/bus/platform/devices/*.ufs/attributes/wb_cur_buf
Date: June 2020
-Contact: Asutosh Das <asutoshd@codeaurora.org>
+Contact: Asutosh Das <quic_asutoshd@quicinc.com>
Description: This entry shows the amount of unused current buffer.
The file is read only.
@@ -1368,7 +1419,7 @@ Description: This entry shows the amount of unused current buffer.
What: /sys/bus/platform/drivers/ufshcd/*/attributes/wb_flush_status
What: /sys/bus/platform/devices/*.ufs/attributes/wb_flush_status
Date: June 2020
-Contact: Asutosh Das <asutoshd@codeaurora.org>
+Contact: Asutosh Das <quic_asutoshd@quicinc.com>
Description: This entry shows the flush operation status.
@@ -1385,7 +1436,7 @@ Description: This entry shows the flush operation status.
What: /sys/bus/platform/drivers/ufshcd/*/attributes/wb_life_time_est
What: /sys/bus/platform/devices/*.ufs/attributes/wb_life_time_est
Date: June 2020
-Contact: Asutosh Das <asutoshd@codeaurora.org>
+Contact: Asutosh Das <quic_asutoshd@quicinc.com>
Description: This entry shows an indication of the WriteBooster Buffer
lifetime based on the amount of performed program/erase cycles
@@ -1399,7 +1450,7 @@ Description: This entry shows an indication of the WriteBooster Buffer
What: /sys/class/scsi_device/*/device/unit_descriptor/wb_buf_alloc_units
Date: June 2020
-Contact: Asutosh Das <asutoshd@codeaurora.org>
+Contact: Asutosh Das <quic_asutoshd@quicinc.com>
Description: This entry shows the configured size of WriteBooster buffer.
0400h corresponds to 4GB.
@@ -1426,287 +1477,294 @@ Description: This entry shows the status of WriteBooster buffer flushing
If flushing is enabled, the device executes the flush
operation when the command queue is empty.
-What: /sys/bus/platform/drivers/ufshcd/*/device_descriptor/hpb_version
-What: /sys/bus/platform/devices/*.ufs/device_descriptor/hpb_version
-Date: June 2021
-Contact: Daejun Park <daejun7.park@samsung.com>
-Description: This entry shows the HPB specification version.
- The full information about the descriptor can be found in the UFS
- HPB (Host Performance Booster) Extension specifications.
- Example: version 1.2.3 = 0123h
-
- The file is read only.
+What: /sys/bus/platform/drivers/ufshcd/*/wb_flush_threshold
+What: /sys/bus/platform/devices/*.ufs/wb_flush_threshold
+Date: June 2023
+Contact: Lu Hongfei <luhongfei@vivo.com>
+Description:
+ wb_flush_threshold represents the threshold for flushing WriteBooster buffer,
+ whose value expressed in unit of 10% granularity, such as '1' representing 10%,
+ '2' representing 20%, and so on.
+ If avail_wb_buff < wb_flush_threshold, it indicates that WriteBooster buffer needs to
+ be flushed, otherwise it is not necessary.
-What: /sys/bus/platform/drivers/ufshcd/*/device_descriptor/hpb_control
-What: /sys/bus/platform/devices/*.ufs/device_descriptor/hpb_control
-Date: June 2021
-Contact: Daejun Park <daejun7.park@samsung.com>
-Description: This entry shows an indication of the HPB control mode.
- 00h: Host control mode
- 01h: Device control mode
+Contact: Daniil Lunev <dlunev@chromium.org>
+What: /sys/bus/platform/drivers/ufshcd/*/capabilities/
+What: /sys/bus/platform/devices/*.ufs/capabilities/
+Date: August 2022
+Description: The group represents the effective capabilities of the
+ host-device pair. i.e. the capabilities which are enabled in the
+ driver for the specific host controller, supported by the host
+ controller and are supported and/or have compatible
+ configuration on the device side.
- The file is read only.
+Contact: Daniil Lunev <dlunev@chromium.org>
+What: /sys/bus/platform/drivers/ufshcd/*/capabilities/clock_scaling
+What: /sys/bus/platform/devices/*.ufs/capabilities/clock_scaling
+Date: August 2022
+Contact: Daniil Lunev <dlunev@chromium.org>
+Description: Indicates status of clock scaling.
-What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/hpb_region_size
-What: /sys/bus/platform/devices/*.ufs/geometry_descriptor/hpb_region_size
-Date: June 2021
-Contact: Daejun Park <daejun7.park@samsung.com>
-Description: This entry shows the bHPBRegionSize which can be calculated
- as in the following (in bytes):
- HPB Region size = 512B * 2^bHPBRegionSize
+ == ============================
+ 0 Clock scaling is not supported.
+ 1 Clock scaling is supported.
+ == ============================
The file is read only.
-What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/hpb_number_lu
-What: /sys/bus/platform/devices/*.ufs/geometry_descriptor/hpb_number_lu
-Date: June 2021
-Contact: Daejun Park <daejun7.park@samsung.com>
-Description: This entry shows the maximum number of HPB LU supported by
- the device.
- 00h: HPB is not supported by the device.
- 01h ~ 20h: Maximum number of HPB LU supported by the device
-
- The file is read only.
+What: /sys/bus/platform/drivers/ufshcd/*/capabilities/write_booster
+What: /sys/bus/platform/devices/*.ufs/capabilities/write_booster
+Date: August 2022
+Contact: Daniil Lunev <dlunev@chromium.org>
+Description: Indicates status of Write Booster.
-What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/hpb_subregion_size
-What: /sys/bus/platform/devices/*.ufs/geometry_descriptor/hpb_subregion_size
-Date: June 2021
-Contact: Daejun Park <daejun7.park@samsung.com>
-Description: This entry shows the bHPBSubRegionSize, which can be
- calculated as in the following (in bytes) and shall be a multiple of
- logical block size:
- HPB Sub-Region size = 512B x 2^bHPBSubRegionSize
- bHPBSubRegionSize shall not exceed bHPBRegionSize.
+ == ============================
+ 0 Write Booster can not be enabled.
+ 1 Write Booster can be enabled.
+ == ============================
The file is read only.
-What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/hpb_max_active_regions
-What: /sys/bus/platform/devices/*.ufs/geometry_descriptor/hpb_max_active_regions
-Date: June 2021
-Contact: Daejun Park <daejun7.park@samsung.com>
-Description: This entry shows the maximum number of active HPB regions that
- is supported by the device.
+What: /sys/bus/platform/drivers/ufshcd/*/rtc_update_ms
+What: /sys/bus/platform/devices/*.ufs/rtc_update_ms
+Date: November 2023
+Contact: Bean Huo <beanhuo@micron.com>
+Description:
+ rtc_update_ms indicates how often the host should synchronize or update the
+ UFS RTC. If set to 0, this will disable UFS RTC periodic update.
+What: /sys/devices/platform/.../ufshci_capabilities/version
+Date: August 2024
+Contact: Avri Altman <avri.altman@wdc.com>
+Description:
+ Host Capabilities register group: UFS version register.
+ Symbol - VER. This file shows the UFSHCD version.
+ Example: Version 3.12 would be represented as 0000_0312h.
The file is read only.
-What: /sys/class/scsi_device/*/device/unit_descriptor/hpb_lu_max_active_regions
-Date: June 2021
-Contact: Daejun Park <daejun7.park@samsung.com>
-Description: This entry shows the maximum number of HPB regions assigned to
- the HPB logical unit.
-
+What: /sys/devices/platform/.../ufshci_capabilities/product_id
+Date: August 2024
+Contact: Avri Altman <avri.altman@wdc.com>
+Description:
+ Host Capabilities register group: product ID register.
+ Symbol - HCPID. This file shows the UFSHCD product id.
+ The content of this register is vendor specific.
The file is read only.
-What: /sys/class/scsi_device/*/device/unit_descriptor/hpb_pinned_region_start_offset
-Date: June 2021
-Contact: Daejun Park <daejun7.park@samsung.com>
-Description: This entry shows the start offset of HPB pinned region.
-
+What: /sys/devices/platform/.../ufshci_capabilities/man_id
+Date: August 2024
+Contact: Avri Altman <avri.altman@wdc.com>
+Description:
+ Host Capabilities register group: manufacturer ID register.
+ Symbol - HCMID. This file shows the UFSHCD manufacturer id.
+ The Manufacturer ID is defined by JEDEC in JEDEC-JEP106.
The file is read only.
-What: /sys/class/scsi_device/*/device/unit_descriptor/hpb_number_pinned_regions
-Date: June 2021
-Contact: Daejun Park <daejun7.park@samsung.com>
-Description: This entry shows the number of HPB pinned regions assigned to
- the HPB logical unit.
+What: /sys/bus/platform/drivers/ufshcd/*/critical_health
+What: /sys/bus/platform/devices/*.ufs/critical_health
+Date: February 2025
+Contact: Avri Altman <avri.altman@wdc.com>
+Description: Report the number of times a critical health event has been
+ reported by a UFS device. Further insight into the specific
+ issue can be gained by reading one of: bPreEOLInfo,
+ bDeviceLifeTimeEstA, bDeviceLifeTimeEstB,
+ bWriteBoosterBufferLifeTimeEst, and bRPMBLifeTimeEst.
The file is read only.
-What: /sys/class/scsi_device/*/device/hpb_stats/hit_cnt
-Date: June 2021
-Contact: Daejun Park <daejun7.park@samsung.com>
-Description: This entry shows the number of reads that changed to HPB read.
+What: /sys/bus/platform/drivers/ufshcd/*/clkscale_enable
+What: /sys/bus/platform/devices/*.ufs/clkscale_enable
+Date: January 2025
+Contact: Ziqi Chen <quic_ziqichen@quicinc.com>
+Description:
+ This attribute shows whether the UFS clock scaling is enabled or not.
+ And it can be used to enable/disable the clock scaling by writing
+ 1 or 0 to this attribute.
- The file is read only.
+ The attribute is read/write.
-What: /sys/class/scsi_device/*/device/hpb_stats/miss_cnt
-Date: June 2021
-Contact: Daejun Park <daejun7.park@samsung.com>
-Description: This entry shows the number of reads that cannot be changed to
- HPB read.
+What: /sys/bus/platform/drivers/ufshcd/*/clkgate_enable
+What: /sys/bus/platform/devices/*.ufs/clkgate_enable
+Date: January 2025
+Contact: Ziqi Chen <quic_ziqichen@quicinc.com>
+Description:
+ This attribute shows whether the UFS clock gating is enabled or not.
+ And it can be used to enable/disable the clock gating by writing
+ 1 or 0 to this attribute.
- The file is read only.
+ The attribute is read/write.
-What: /sys/class/scsi_device/*/device/hpb_stats/rcmd_noti_cnt
-Date: June 2021
-Contact: Daejun Park <daejun7.park@samsung.com>
-Description: This entry shows the number of response UPIUs that has
- recommendations for activating sub-regions and/or inactivating region.
+What: /sys/bus/platform/drivers/ufshcd/*/clkgate_delay_ms
+What: /sys/bus/platform/devices/*.ufs/clkgate_delay_ms
+Date: January 2025
+Contact: Ziqi Chen <quic_ziqichen@quicinc.com>
+Description:
+ This attribute shows and sets the number of milliseconds of idle time
+ before the UFS driver starts to perform clock gating. This can
+ prevent the UFS from frequently performing clock gating/ungating.
- The file is read only.
+ The attribute is read/write.
-What: /sys/class/scsi_device/*/device/hpb_stats/rcmd_active_cnt
-Date: June 2021
-Contact: Daejun Park <daejun7.park@samsung.com>
-Description: For the HPB device control mode, this entry shows the number of
- active sub-regions recommended by response UPIUs. For the HPB host control
- mode, this entry shows the number of active sub-regions recommended by the
- HPB host control mode heuristic algorithm.
+What: /sys/bus/platform/drivers/ufshcd/*/device_lvl_exception_count
+What: /sys/bus/platform/devices/*.ufs/device_lvl_exception_count
+Date: March 2025
+Contact: Bao D. Nguyen <quic_nguyenb@quicinc.com>
+Description:
+ This attribute is applicable to ufs devices compliant to the
+ JEDEC specifications version 4.1 or later. The
+ device_lvl_exception_count is a counter indicating the number of
+ times the device level exceptions have occurred since the last
+ time this variable is reset. Writing a 0 value to this
+ attribute will reset the device_lvl_exception_count. If the
+ device_lvl_exception_count reads a positive value, the user
+ application should read the device_lvl_exception_id attribute to
+ know more information about the exception.
+
+ The attribute is read/write.
+
+What: /sys/bus/platform/drivers/ufshcd/*/device_lvl_exception_id
+What: /sys/bus/platform/devices/*.ufs/device_lvl_exception_id
+Date: March 2025
+Contact: Bao D. Nguyen <quic_nguyenb@quicinc.com>
+Description:
+ Reading the device_lvl_exception_id returns the
+ qDeviceLevelExceptionID attribute of the ufs device JEDEC
+ specification version 4.1. The definition of the
+ qDeviceLevelExceptionID is the ufs device vendor specific
+ implementation. Refer to the device manufacturer datasheet for
+ more information on the meaning of the qDeviceLevelExceptionID
+ attribute value.
+
+ The attribute is read only.
+
+What: /sys/bus/platform/drivers/ufshcd/*/wb_resize_enable
+What: /sys/bus/platform/devices/*.ufs/wb_resize_enable
+Date: April 2025
+Contact: Huan Tang <tanghuan@vivo.com>
+Description:
+ The host can enable the WriteBooster buffer resize by setting this
+ attribute.
- The file is read only.
+ ======== ======================================
+ idle There is no resize operation
+ decrease Decrease WriteBooster buffer size
+ increase Increase WriteBooster buffer size
+ ======== ======================================
-What: /sys/class/scsi_device/*/device/hpb_stats/rcmd_inactive_cnt
-Date: June 2021
-Contact: Daejun Park <daejun7.park@samsung.com>
-Description: For the HPB device control mode, this entry shows the number of
- inactive regions recommended by response UPIUs. For the HPB host control
- mode, this entry shows the number of inactive regions recommended by the
- HPB host control mode heuristic algorithm.
+ The file is write only.
- The file is read only.
+What: /sys/bus/platform/drivers/ufshcd/*/attributes/wb_resize_hint
+What: /sys/bus/platform/devices/*.ufs/attributes/wb_resize_hint
+Date: April 2025
+Contact: Huan Tang <tanghuan@vivo.com>
+Description:
+ wb_resize_hint indicates hint information about which type of resize
+ for WriteBooster buffer is recommended by the device.
-What: /sys/class/scsi_device/*/device/hpb_stats/map_req_cnt
-Date: June 2021
-Contact: Daejun Park <daejun7.park@samsung.com>
-Description: This entry shows the number of read buffer commands for
- activating sub-regions recommended by response UPIUs.
+ ========= ======================================
+ keep Recommend keep the buffer size
+ decrease Recommend to decrease the buffer size
+ increase Recommend to increase the buffer size
+ ========= ======================================
The file is read only.
-What: /sys/class/scsi_device/*/device/hpb_params/requeue_timeout_ms
-Date: June 2021
-Contact: Daejun Park <daejun7.park@samsung.com>
-Description: This entry shows the requeue timeout threshold for write buffer
- command in ms. The value can be changed by writing an integer to
- this entry.
-
-What: /sys/bus/platform/drivers/ufshcd/*/attributes/max_data_size_hpb_single_cmd
-What: /sys/bus/platform/devices/*.ufs/attributes/max_data_size_hpb_single_cmd
-Date: June 2021
-Contact: Daejun Park <daejun7.park@samsung.com>
-Description: This entry shows the maximum HPB data size for using a single HPB
- command.
+What: /sys/bus/platform/drivers/ufshcd/*/attributes/wb_resize_status
+What: /sys/bus/platform/devices/*.ufs/attributes/wb_resize_status
+Date: April 2025
+Contact: Huan Tang <tanghuan@vivo.com>
+Description:
+ The host can check the resize operation status of the WriteBooster
+ buffer by reading this attribute.
- === ========
- 00h 4KB
- 01h 8KB
- 02h 12KB
- ...
- FFh 1024KB
- === ========
+ ================ ========================================
+ idle Resize operation is not issued
+ in_progress Resize operation in progress
+ complete_success Resize operation completed successfully
+ general_failure Resize operation general failure
+ ================ ========================================
The file is read only.
-What: /sys/bus/platform/drivers/ufshcd/*/flags/hpb_enable
-What: /sys/bus/platform/devices/*.ufs/flags/hpb_enable
-Date: June 2021
-Contact: Daejun Park <daejun7.park@samsung.com>
-Description: This entry shows the status of HPB.
+What: /sys/bus/platform/drivers/ufshcd/*/hid/analysis_trigger
+What: /sys/bus/platform/devices/*.ufs/hid/analysis_trigger
+Date: May 2025
+Contact: Huan Tang <tanghuan@vivo.com>
+Description:
+ The host can enable or disable HID analysis operation.
- == ============================
- 0 HPB is not enabled.
- 1 HPB is enabled
- == ============================
+ ======= =========================================
+ disable disable HID analysis operation
+ enable enable HID analysis operation
+ ======= =========================================
- The file is read only.
+ The file is write only.
-Contact: Daniil Lunev <dlunev@chromium.org>
-What: /sys/bus/platform/drivers/ufshcd/*/capabilities/
-What: /sys/bus/platform/devices/*.ufs/capabilities/
-Date: August 2022
-Description: The group represents the effective capabilities of the
- host-device pair. i.e. the capabilities which are enabled in the
- driver for the specific host controller, supported by the host
- controller and are supported and/or have compatible
- configuration on the device side.
+What: /sys/bus/platform/drivers/ufshcd/*/hid/defrag_trigger
+What: /sys/bus/platform/devices/*.ufs/hid/defrag_trigger
+Date: May 2025
+Contact: Huan Tang <tanghuan@vivo.com>
+Description:
+ The host can enable or disable HID defragmentation operation.
-Contact: Daniil Lunev <dlunev@chromium.org>
-What: /sys/bus/platform/drivers/ufshcd/*/capabilities/clock_scaling
-What: /sys/bus/platform/devices/*.ufs/capabilities/clock_scaling
-Date: August 2022
-Contact: Daniil Lunev <dlunev@chromium.org>
-Description: Indicates status of clock scaling.
+ ======= =========================================
+ disable disable HID defragmentation operation
+ enable enable HID defragmentation operation
+ ======= =========================================
- == ============================
- 0 Clock scaling is not supported.
- 1 Clock scaling is supported.
- == ============================
+ The attribute is write only.
- The file is read only.
+What: /sys/bus/platform/drivers/ufshcd/*/hid/fragmented_size
+What: /sys/bus/platform/devices/*.ufs/hid/fragmented_size
+Date: May 2025
+Contact: Huan Tang <tanghuan@vivo.com>
+Description:
+ The total fragmented size in the device is reported through
+ this attribute.
-What: /sys/bus/platform/drivers/ufshcd/*/capabilities/write_booster
-What: /sys/bus/platform/devices/*.ufs/capabilities/write_booster
-Date: August 2022
-Contact: Daniil Lunev <dlunev@chromium.org>
-Description: Indicates status of Write Booster.
+ The attribute is read only.
- == ============================
- 0 Write Booster can not be enabled.
- 1 Write Booster can be enabled.
- == ============================
+What: /sys/bus/platform/drivers/ufshcd/*/hid/defrag_size
+What: /sys/bus/platform/devices/*.ufs/hid/defrag_size
+Date: May 2025
+Contact: Huan Tang <tanghuan@vivo.com>
+Description:
+ The host sets the size to be defragmented by an HID
+ defragmentation operation.
- The file is read only.
+ The attribute is read/write.
-What: /sys/class/scsi_device/*/device/hpb_param_sysfs/activation_thld
-Date: February 2021
-Contact: Avri Altman <avri.altman@wdc.com>
-Description: In host control mode, reads are the major source of activation
- trials. Once this threshold hs met, the region is added to the
- "to-be-activated" list. Since we reset the read counter upon
- write, this include sending a rb command updating the region
- ppn as well.
-
-What: /sys/class/scsi_device/*/device/hpb_param_sysfs/normalization_factor
-Date: February 2021
-Contact: Avri Altman <avri.altman@wdc.com>
-Description: In host control mode, we think of the regions as "buckets".
- Those buckets are being filled with reads, and emptied on write.
- We use entries_per_srgn - the amount of blocks in a subregion as
- our bucket size. This applies because HPB1.0 only handles
- single-block reads. Once the bucket size is crossed, we trigger
- a normalization work - not only to avoid overflow, but mainly
- because we want to keep those counters normalized, as we are
- using those reads as a comparative score, to make various decisions.
- The normalization is dividing (shift right) the read counter by
- the normalization_factor. If during consecutive normalizations
- an active region has exhausted its reads - inactivate it.
-
-What: /sys/class/scsi_device/*/device/hpb_param_sysfs/eviction_thld_enter
-Date: February 2021
-Contact: Avri Altman <avri.altman@wdc.com>
-Description: Region deactivation is often due to the fact that eviction took
- place: A region becomes active at the expense of another. This is
- happening when the max-active-regions limit has been crossed.
- In host mode, eviction is considered an extreme measure. We
- want to verify that the entering region has enough reads, and
- the exiting region has much fewer reads. eviction_thld_enter is
- the min reads that a region must have in order to be considered
- a candidate for evicting another region.
-
-What: /sys/class/scsi_device/*/device/hpb_param_sysfs/eviction_thld_exit
-Date: February 2021
-Contact: Avri Altman <avri.altman@wdc.com>
-Description: Same as above for the exiting region. A region is considered to
- be a candidate for eviction only if it has fewer reads than
- eviction_thld_exit.
+What: /sys/bus/platform/drivers/ufshcd/*/hid/progress_ratio
+What: /sys/bus/platform/devices/*.ufs/hid/progress_ratio
+Date: May 2025
+Contact: Huan Tang <tanghuan@vivo.com>
+Description:
+ Defragmentation progress is reported by this attribute,
+ indicates the ratio of the completed defragmentation size
+ over the requested defragmentation size.
-What: /sys/class/scsi_device/*/device/hpb_param_sysfs/read_timeout_ms
-Date: February 2021
-Contact: Avri Altman <avri.altman@wdc.com>
-Description: In order not to hang on to "cold" regions, we inactivate
- a region that has no READ access for a predefined amount of
- time - read_timeout_ms. If read_timeout_ms has expired, and the
- region is dirty, it is less likely that we can make any use of
- HPB reading it so we inactivate it. Still, deactivation has
- its overhead, and we may still benefit from HPB reading this
- region if it is clean - see read_timeout_expiries.
-
-What: /sys/class/scsi_device/*/device/hpb_param_sysfs/read_timeout_expiries
-Date: February 2021
-Contact: Avri Altman <avri.altman@wdc.com>
-Description: If the region read timeout has expired, but the region is clean,
- just re-wind its timer for another spin. Do that as long as it
- is clean and did not exhaust its read_timeout_expiries threshold.
+ ==== ============================================
+ 1 1%
+ ...
+ 100 100%
+ ==== ============================================
-What: /sys/class/scsi_device/*/device/hpb_param_sysfs/timeout_polling_interval_ms
-Date: February 2021
-Contact: Avri Altman <avri.altman@wdc.com>
-Description: The frequency with which the delayed worker that checks the
- read_timeouts is awakened.
+ The attribute is read only.
-What: /sys/class/scsi_device/*/device/hpb_param_sysfs/inflight_map_req
-Date: February 2021
-Contact: Avri Altman <avri.altman@wdc.com>
-Description: In host control mode the host is the originator of map requests.
- To avoid flooding the device with map requests, use a simple throttling
- mechanism that limits the number of inflight map requests.
+What: /sys/bus/platform/drivers/ufshcd/*/hid/state
+What: /sys/bus/platform/devices/*.ufs/hid/state
+Date: May 2025
+Contact: Huan Tang <tanghuan@vivo.com>
+Description:
+ The HID state is reported by this attribute.
+
+ ==================== ===========================
+ idle Idle (analysis required)
+ analysis_in_progress Analysis in progress
+ defrag_required Defrag required
+ defrag_in_progress Defrag in progress
+ defrag_completed Defrag completed
+ defrag_not_required Defrag is not required
+ ==================== ===========================
+
+ The attribute is read only.
diff --git a/Documentation/ABI/testing/sysfs-driver-uio_pci_sva-pasid b/Documentation/ABI/testing/sysfs-driver-uio_pci_sva-pasid
new file mode 100644
index 000000000000..6892fe46cea8
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-driver-uio_pci_sva-pasid
@@ -0,0 +1,29 @@
+What: /sys/bus/pci/drivers/uio_pci_sva/<pci_dev>/pasid
+Date: September 2025
+Contact: Yaxing Guo <guoyaxing@bosc.ac.cn>
+Description:
+ Process Address Space ID (PASID) assigned by IOMMU driver to
+ the device for use with Shared Virtual Addressing (SVA).
+
+ This read-only attribute exposes the PASID (A 20-bit identifier
+ used in PCIe Address Translation Services and iommu table walks)
+ allocated by the IOMMU driver during sva device binding.
+
+ User-space UIO applications must read this attribute to obtain
+ the PASID and program it into the device's configuration registers.
+ This enables the device to perform DMA using user-space virtual
+ address, with address translation handled by IOMMU.
+
+ UIO User-space applications must:
+ - Opening device and Mapping the device's register space via /dev/uioX
+ (This triggers the IOMMU driver to allocate the PASID)
+ - Reading the PASID from sysfs
+ - Writing the PASID to a device-specific register (with example offset)
+ The code may be like:
+
+ map = mmap(..., "/dev/uio0", ...);
+
+ f = fopen("/sys/.../pasid", "r");
+ fscanf(f, "%d", &pasid);
+
+ map[REG_PASID_OFFSET] = pasid;
diff --git a/Documentation/ABI/testing/sysfs-driver-uniwill-laptop b/Documentation/ABI/testing/sysfs-driver-uniwill-laptop
new file mode 100644
index 000000000000..eaeb659793d2
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-driver-uniwill-laptop
@@ -0,0 +1,53 @@
+What: /sys/bus/platform/devices/INOU0000:XX/fn_lock_toggle_enable
+Date: November 2025
+KernelVersion: 6.19
+Contact: Armin Wolf <W_Armin@gmx.de>
+Description:
+ Allows userspace applications to enable/disable the FN lock feature
+ of the integrated keyboard by writing "1"/"0" into this file.
+
+ Reading this file returns the current enable status of the FN lock functionality.
+
+What: /sys/bus/platform/devices/INOU0000:XX/super_key_toggle_enable
+Date: November 2025
+KernelVersion: 6.19
+Contact: Armin Wolf <W_Armin@gmx.de>
+Description:
+ Allows userspace applications to enable/disable the super key functionality
+ of the integrated keyboard by writing "1"/"0" into this file.
+
+ Reading this file returns the current enable status of the super key functionality.
+
+What: /sys/bus/platform/devices/INOU0000:XX/touchpad_toggle_enable
+Date: November 2025
+KernelVersion: 6.19
+Contact: Armin Wolf <W_Armin@gmx.de>
+Description:
+ Allows userspace applications to enable/disable the touchpad toggle functionality
+ of the integrated touchpad by writing "1"/"0" into this file.
+
+ Reading this file returns the current enable status of the touchpad toggle
+ functionality.
+
+What: /sys/bus/platform/devices/INOU0000:XX/rainbow_animation
+Date: November 2025
+KernelVersion: 6.19
+Contact: Armin Wolf <W_Armin@gmx.de>
+Description:
+ Forces the integrated lightbar to display a rainbow animation when the machine
+ is not suspended. Writing "1"/"0" into this file enables/disables this
+ functionality.
+
+ Reading this file returns the current status of the rainbow animation functionality.
+
+What: /sys/bus/platform/devices/INOU0000:XX/breathing_in_suspend
+Date: November 2025
+KernelVersion: 6.19
+Contact: Armin Wolf <W_Armin@gmx.de>
+Description:
+ Causes the integrated lightbar to display a breathing animation when the machine
+ has been suspended and is running on AC power. Writing "1"/"0" into this file
+ enables/disables this functionality.
+
+ Reading this file returns the current status of the breathing animation
+ functionality.
diff --git a/Documentation/ABI/testing/sysfs-edac-ecs b/Documentation/ABI/testing/sysfs-edac-ecs
new file mode 100644
index 000000000000..87c885c4eb1a
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-edac-ecs
@@ -0,0 +1,74 @@
+What: /sys/bus/edac/devices/<dev-name>/ecs_fruX
+Date: March 2025
+KernelVersion: 6.15
+Contact: linux-edac@vger.kernel.org
+Description:
+ The sysfs EDAC bus devices /<dev-name>/ecs_fruX subdirectory
+ pertains to the memory media ECS (Error Check Scrub) control
+ feature, where <dev-name> directory corresponds to a device
+ registered with the EDAC device driver for the ECS feature.
+ /ecs_fruX belongs to the media FRUs (Field Replaceable Unit)
+ under the memory device.
+
+ The sysfs ECS attr nodes are only present if the parent
+ driver has implemented the corresponding attr callback
+ function and provided the necessary operations to the EDAC
+ device driver during registration.
+
+What: /sys/bus/edac/devices/<dev-name>/ecs_fruX/log_entry_type
+Date: March 2025
+KernelVersion: 6.15
+Contact: linux-edac@vger.kernel.org
+Description:
+ (RW) The log entry type of how the DDR5 ECS log is reported.
+
+ - 0 - per DRAM.
+
+ - 1 - per memory media FRU.
+
+ - All other values are reserved.
+
+What: /sys/bus/edac/devices/<dev-name>/ecs_fruX/mode
+Date: March 2025
+KernelVersion: 6.15
+Contact: linux-edac@vger.kernel.org
+Description:
+ (RW) The mode of how the DDR5 ECS counts the errors.
+ Error count is tracked based on two different modes
+ selected by DDR5 ECS Control Feature - Codeword mode and
+ Row Count mode. If the ECS is under Codeword mode, then
+ the error count increments each time a codeword with check
+ bit errors is detected. If the ECS is under Row Count mode,
+ then the error counter increments each time a row with
+ check bit errors is detected.
+
+ - 0 - ECS counts rows in the memory media that have ECC errors.
+
+ - 1 - ECS counts codewords with errors, specifically, it counts
+ the number of ECC-detected errors in the memory media.
+
+ - All other values are reserved.
+
+What: /sys/bus/edac/devices/<dev-name>/ecs_fruX/reset
+Date: March 2025
+KernelVersion: 6.15
+Contact: linux-edac@vger.kernel.org
+Description:
+ (WO) ECS reset ECC counter.
+
+ - 1 - reset ECC counter to the default value.
+
+ - All other values are reserved.
+
+What: /sys/bus/edac/devices/<dev-name>/ecs_fruX/threshold
+Date: March 2025
+KernelVersion: 6.15
+Contact: linux-edac@vger.kernel.org
+Description:
+ (RW) DDR5 ECS threshold count per gigabits of memory cells.
+ The ECS error count is subject to the ECS Threshold count
+ per Gbit, which masks error counts less than the Threshold.
+
+ Supported values are 256, 1024 and 4096.
+
+ All other values are reserved.
diff --git a/Documentation/ABI/testing/sysfs-edac-memory-repair b/Documentation/ABI/testing/sysfs-edac-memory-repair
new file mode 100644
index 000000000000..0434a3b23ff3
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-edac-memory-repair
@@ -0,0 +1,206 @@
+What: /sys/bus/edac/devices/<dev-name>/mem_repairX
+Date: March 2025
+KernelVersion: 6.15
+Contact: linux-edac@vger.kernel.org
+Description:
+ The sysfs EDAC bus devices /<dev-name>/mem_repairX subdirectory
+ pertains to the memory media repair features control, such as
+ PPR (Post Package Repair), memory sparing etc, where <dev-name>
+ directory corresponds to a device registered with the EDAC
+ device driver for the memory repair features.
+
+ Post Package Repair is a maintenance operation requests the memory
+ device to perform a repair operation on its media. It is a memory
+ self-healing feature that fixes a failing memory location by
+ replacing it with a spare row in a DRAM device. For example, a
+ CXL memory device with DRAM components that support PPR features may
+ implement PPR maintenance operations. DRAM components may support
+ two types of PPR functions: hard PPR, for a permanent row repair, and
+ soft PPR, for a temporary row repair. Soft PPR may be much faster
+ than hard PPR, but the repair is lost with a power cycle.
+
+ The sysfs attributes nodes for a repair feature are only
+ present if the parent driver has implemented the corresponding
+ attr callback function and provided the necessary operations
+ to the EDAC device driver during registration.
+
+ In some states of system configuration (e.g. before address
+ decoders have been configured), memory devices (e.g. CXL)
+ may not have an active mapping in the main host address
+ physical address map. As such, the memory to repair must be
+ identified by a device specific physical addressing scheme
+ using a device physical address(DPA). The DPA and other control
+ attributes to use will be presented in related error records.
+
+What: /sys/bus/edac/devices/<dev-name>/mem_repairX/repair_type
+Date: March 2025
+KernelVersion: 6.15
+Contact: linux-edac@vger.kernel.org
+Description:
+ (RO) Memory repair type. For eg. post package repair,
+ memory sparing etc. Valid values are:
+
+ - ppr - Post package repair.
+
+ - cacheline-sparing
+
+ - row-sparing
+
+ - bank-sparing
+
+ - rank-sparing
+
+ - All other values are reserved.
+
+What: /sys/bus/edac/devices/<dev-name>/mem_repairX/persist_mode
+Date: March 2025
+KernelVersion: 6.15
+Contact: linux-edac@vger.kernel.org
+Description:
+ (RW) Get/Set the current persist repair mode set for a
+ repair function. Persist repair modes supported in the
+ device, based on a memory repair function, either is temporary,
+ which is lost with a power cycle or permanent. Valid values are:
+
+ - 0 - Soft memory repair (temporary repair).
+
+ - 1 - Hard memory repair (permanent repair).
+
+ - All other values are reserved.
+
+What: /sys/bus/edac/devices/<dev-name>/mem_repairX/repair_safe_when_in_use
+Date: March 2025
+KernelVersion: 6.15
+Contact: linux-edac@vger.kernel.org
+Description:
+ (RO) True if memory media is accessible and data is retained
+ during the memory repair operation.
+ The data may not be retained and memory requests may not be
+ correctly processed during a repair operation. In such case
+ repair operation can not be executed at runtime. The memory
+ must be taken offline.
+
+What: /sys/bus/edac/devices/<dev-name>/mem_repairX/hpa
+Date: March 2025
+KernelVersion: 6.15
+Contact: linux-edac@vger.kernel.org
+Description:
+ (RW) Host Physical Address (HPA) of the memory to repair.
+ The HPA to use will be provided in related error records.
+
+What: /sys/bus/edac/devices/<dev-name>/mem_repairX/dpa
+Date: March 2025
+KernelVersion: 6.15
+Contact: linux-edac@vger.kernel.org
+Description:
+ (RW) Device Physical Address (DPA) of the memory to repair.
+ The specific DPA to use will be provided in related error
+ records.
+
+ In some states of system configuration (e.g. before address
+ decoders have been configured), memory devices (e.g. CXL)
+ may not have an active mapping in the main host address
+ physical address map. As such, the memory to repair must be
+ identified by a device specific physical addressing scheme
+ using a DPA. The device physical address(DPA) to use will be
+ presented in related error records.
+
+What: /sys/bus/edac/devices/<dev-name>/mem_repairX/nibble_mask
+Date: March 2025
+KernelVersion: 6.15
+Contact: linux-edac@vger.kernel.org
+Description:
+ (RW) Read/Write Nibble mask of the memory to repair.
+ Nibble mask identifies one or more nibbles in error on the
+ memory bus that produced the error event. Nibble Mask bit 0
+ shall be set if nibble 0 on the memory bus produced the
+ event, etc. For example, CXL PPR and sparing, a nibble mask
+ bit set to 1 indicates the request to perform repair
+ operation in the specific device. All nibble mask bits set
+ to 1 indicates the request to perform the operation in all
+ devices. Eg. for CXL memory repair, the specific value of
+ nibble mask to use will be provided in related error records.
+ For more details, See nibble mask field in CXL spec ver 3.1,
+ section 8.2.9.7.1.2 Table 8-103 soft PPR and section
+ 8.2.9.7.1.3 Table 8-104 hard PPR, section 8.2.9.7.1.4
+ Table 8-105 memory sparing.
+
+What: /sys/bus/edac/devices/<dev-name>/mem_repairX/min_hpa
+What: /sys/bus/edac/devices/<dev-name>/mem_repairX/max_hpa
+What: /sys/bus/edac/devices/<dev-name>/mem_repairX/min_dpa
+What: /sys/bus/edac/devices/<dev-name>/mem_repairX/max_dpa
+Date: March 2025
+KernelVersion: 6.15
+Contact: linux-edac@vger.kernel.org
+Description:
+ (RW) The supported range of memory address that is to be
+ repaired. The memory device may give the supported range of
+ attributes to use and it will depend on the memory device
+ and the portion of memory to repair.
+ The userspace may receive the specific value of attributes
+ to use for a repair operation from the memory device via
+ related error records and trace events, for eg. CXL DRAM
+ and CXL general media error records in CXL memory devices.
+
+What: /sys/bus/edac/devices/<dev-name>/mem_repairX/bank_group
+What: /sys/bus/edac/devices/<dev-name>/mem_repairX/bank
+What: /sys/bus/edac/devices/<dev-name>/mem_repairX/rank
+What: /sys/bus/edac/devices/<dev-name>/mem_repairX/row
+What: /sys/bus/edac/devices/<dev-name>/mem_repairX/column
+What: /sys/bus/edac/devices/<dev-name>/mem_repairX/channel
+What: /sys/bus/edac/devices/<dev-name>/mem_repairX/sub_channel
+Date: March 2025
+KernelVersion: 6.15
+Contact: linux-edac@vger.kernel.org
+Description:
+ (RW) The control attributes for the memory to be repaired.
+ The specific value of attributes to use depends on the
+ portion of memory to repair and will be reported to the host
+ in related error records and be available to userspace
+ in trace events, such as CXL DRAM and CXL general media
+ error records of CXL memory devices.
+
+ When readng back these attributes, it returns the current
+ value of memory requested to be repaired.
+
+ bank_group - The bank group of the memory to repair.
+
+ bank - The bank number of the memory to repair.
+
+ rank - The rank of the memory to repair. Rank is defined as a
+ set of memory devices on a channel that together execute a
+ transaction.
+
+ row - The row number of the memory to repair.
+
+ column - The column number of the memory to repair.
+
+ channel - The channel of the memory to repair. Channel is
+ defined as an interface that can be independently accessed
+ for a transaction.
+
+ sub_channel - The subchannel of the memory to repair.
+
+ The requirement to set these attributes varies based on the
+ repair function. The attributes in sysfs are not present
+ unless required for a repair function.
+
+ For example, CXL spec ver 3.1, Section 8.2.9.7.1.2 Table 8-103
+ soft PPR and Section 8.2.9.7.1.3 Table 8-104 hard PPR operations,
+ these attributes are not required to set. CXL spec ver 3.1,
+ Section 8.2.9.7.1.4 Table 8-105 memory sparing, these attributes
+ are required to set based on memory sparing granularity.
+
+What: /sys/bus/edac/devices/<dev-name>/mem_repairX/repair
+Date: March 2025
+KernelVersion: 6.15
+Contact: linux-edac@vger.kernel.org
+Description:
+ (WO) Issue the memory repair operation for the specified
+ memory repair attributes. The operation may fail if resources
+ are insufficient based on the requirements of the memory
+ device and repair function.
+
+ - 1 - Issue the repair operation.
+
+ - All other values are reserved.
diff --git a/Documentation/ABI/testing/sysfs-edac-scrub b/Documentation/ABI/testing/sysfs-edac-scrub
new file mode 100644
index 000000000000..ab6014743da5
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-edac-scrub
@@ -0,0 +1,85 @@
+What: /sys/bus/edac/devices/<dev-name>/scrubX
+Date: March 2025
+KernelVersion: 6.15
+Contact: linux-edac@vger.kernel.org
+Description:
+ The sysfs EDAC bus devices /<dev-name>/scrubX subdirectory
+ belongs to an instance of memory scrub control feature,
+ where <dev-name> directory corresponds to a device/memory
+ region registered with the EDAC device driver for the
+ scrub control feature.
+
+ The sysfs scrub attr nodes are only present if the parent
+ driver has implemented the corresponding attr callback
+ function and provided the necessary operations to the EDAC
+ device driver during registration.
+
+What: /sys/bus/edac/devices/<dev-name>/scrubX/addr
+Date: March 2025
+KernelVersion: 6.15
+Contact: linux-edac@vger.kernel.org
+Description:
+ (RW) The base address of the memory region to be scrubbed
+ for on-demand scrubbing. Setting address starts scrubbing.
+ The size must be set before that.
+
+ The readback addr value is non-zero if the requested
+ on-demand scrubbing is in progress, zero otherwise.
+
+What: /sys/bus/edac/devices/<dev-name>/scrubX/size
+Date: March 2025
+KernelVersion: 6.15
+Contact: linux-edac@vger.kernel.org
+Description:
+ (RW) The size of the memory region to be scrubbed
+ (on-demand scrubbing).
+
+What: /sys/bus/edac/devices/<dev-name>/scrubX/enable_background
+Date: March 2025
+KernelVersion: 6.15
+Contact: linux-edac@vger.kernel.org
+Description:
+ (RW) Start/Stop background (patrol) scrubbing if supported.
+
+What: /sys/bus/edac/devices/<dev-name>/scrubX/min_cycle_duration
+Date: March 2025
+KernelVersion: 6.15
+Contact: linux-edac@vger.kernel.org
+Description:
+ (RO) Supported minimum scrub cycle duration in seconds
+ by the memory scrubber.
+
+ Device-based scrub: returns the minimum scrub cycle
+ supported by the memory device.
+
+ Region-based scrub: returns the max of minimum scrub cycles
+ supported by individual memory devices that back the region.
+
+What: /sys/bus/edac/devices/<dev-name>/scrubX/max_cycle_duration
+Date: March 2025
+KernelVersion: 6.15
+Contact: linux-edac@vger.kernel.org
+Description:
+ (RO) Supported maximum scrub cycle duration in seconds
+ by the memory scrubber.
+
+ Device-based scrub: returns the maximum scrub cycle supported
+ by the memory device.
+
+ Region-based scrub: returns the min of maximum scrub cycles
+ supported by individual memory devices that back the region.
+
+ If the memory device does not provide maximum scrub cycle
+ information, return the maximum supported value of the scrub
+ cycle field.
+
+What: /sys/bus/edac/devices/<dev-name>/scrubX/current_cycle_duration
+Date: March 2025
+KernelVersion: 6.15
+Contact: linux-edac@vger.kernel.org
+Description:
+ (RW) The current scrub cycle duration in seconds and must be
+ within the supported range by the memory scrubber.
+
+ Scrub has an overhead when running and that may want to be
+ reduced by taking longer to do it.
diff --git a/Documentation/ABI/testing/sysfs-firmware-acpi b/Documentation/ABI/testing/sysfs-firmware-acpi
index 819939d858c9..72e7c9161ce7 100644
--- a/Documentation/ABI/testing/sysfs-firmware-acpi
+++ b/Documentation/ABI/testing/sysfs-firmware-acpi
@@ -84,7 +84,7 @@ Description:
hotplug events associated with the given class of
devices and will allow those devices to be ejected with
the help of the _EJ0 control method. Unsetting it
- effectively disables hotplug for the correspoinding
+ effectively disables hotplug for the corresponding
class of devices.
======== =======================================================
@@ -108,15 +108,15 @@ Description:
number of a "General Purpose Events" (GPE).
A GPE vectors to a specified handler in AML, which
- can do a anything the BIOS writer wants from
+ can do anything the BIOS writer wants from
OS context. GPE 0x12, for example, would vector
to a level or edge handler called _L12 or _E12.
The handler may do its business and return.
- Or the handler may send send a Notify event
+ Or the handler may send a Notify event
to a Linux device driver registered on an ACPI device,
such as a battery, or a processor.
- To figure out where all the SCI's are coming from,
+ To figure out where all the SCIs are coming from,
/sys/firmware/acpi/interrupts contains a file listing
every possible source, and the count of how many
times it has triggered::
@@ -248,3 +248,24 @@ Description:
# cat ff_pwr_btn
7 enabled
+What: /sys/firmware/acpi/memory_ranges/rangeX
+Date: February 2025
+Contact: Tony Luck <tony.luck@intel.com>
+Description:
+ On systems with the ACPI MRRM table reports the parameters for
+ each range.
+
+ base: Starting system physical address.
+
+ length: Length of this range in bytes.
+
+ node: NUMA node that this range belongs to. Negative numbers
+ indicate that the node number could not be determined (e.g
+ for an address range that is reserved for future hot add of
+ memory).
+
+ local_region_id: ID associated with access by agents
+ local to this range of addresses.
+
+ remote_region_id: ID associated with access by agents
+ non-local to this range of addresses.
diff --git a/Documentation/ABI/testing/sysfs-firmware-dmi-entries b/Documentation/ABI/testing/sysfs-firmware-dmi-entries
index fe0289c87768..b6c23807b804 100644
--- a/Documentation/ABI/testing/sysfs-firmware-dmi-entries
+++ b/Documentation/ABI/testing/sysfs-firmware-dmi-entries
@@ -2,7 +2,7 @@ What: /sys/firmware/dmi/entries/
Date: February 2011
Contact: Mike Waychison <mikew@google.com>
Description:
- Many machines' firmware (x86 and ia64) export DMI /
+ Many machines' firmware (x86 and arm64) export DMI /
SMBIOS tables to the operating system. Getting at this
information is often valuable to userland, especially in
cases where there are OEM extensions used.
diff --git a/Documentation/ABI/testing/sysfs-firmware-efi b/Documentation/ABI/testing/sysfs-firmware-efi
index 5e4d0b27cdfe..927e362d4974 100644
--- a/Documentation/ABI/testing/sysfs-firmware-efi
+++ b/Documentation/ABI/testing/sysfs-firmware-efi
@@ -36,3 +36,10 @@ Description: Displays the content of the Runtime Configuration Interface
Table version 2 on Dell EMC PowerEdge systems in binary format
Users: It is used by Dell EMC OpenManage Server Administrator tool to
populate BIOS setup page.
+
+What: /sys/firmware/efi/ovmf_debug_log
+Date: July 2025
+Contact: Gerd Hoffmann <kraxel@redhat.com>, linux-efi@vger.kernel.org
+Description: Displays the content of the OVMF debug log buffer. The file is
+ only present in case the firmware supports logging to a memory
+ buffer.
diff --git a/Documentation/ABI/testing/sysfs-firmware-initrd b/Documentation/ABI/testing/sysfs-firmware-initrd
new file mode 100644
index 000000000000..20bf7cf77a19
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-firmware-initrd
@@ -0,0 +1,8 @@
+What: /sys/firmware/initrd
+Date: December 2023
+Contact: Alexander Graf <graf@amazon.com>
+Description:
+ When the kernel was booted with an initrd and the
+ "retain_initrd" option is set on the kernel command
+ line, /sys/firmware/initrd contains the contents of the
+ initrd that the kernel was booted with.
diff --git a/Documentation/ABI/testing/sysfs-firmware-opal-powercap b/Documentation/ABI/testing/sysfs-firmware-opal-powercap
index c9b66ec4f165..d2d12ee89288 100644
--- a/Documentation/ABI/testing/sysfs-firmware-opal-powercap
+++ b/Documentation/ABI/testing/sysfs-firmware-opal-powercap
@@ -1,6 +1,6 @@
What: /sys/firmware/opal/powercap
Date: August 2017
-Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
+Contact: Linux for PowerPC mailing list <linuxppc-dev@lists.ozlabs.org>
Description: Powercap directory for Powernv (P8, P9) servers
Each folder in this directory contains a
@@ -11,7 +11,7 @@ What: /sys/firmware/opal/powercap/system-powercap
/sys/firmware/opal/powercap/system-powercap/powercap-max
/sys/firmware/opal/powercap/system-powercap/powercap-current
Date: August 2017
-Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
+Contact: Linux for PowerPC mailing list <linuxppc-dev@lists.ozlabs.org>
Description: System powercap directory and attributes applicable for
Powernv (P8, P9) servers
diff --git a/Documentation/ABI/testing/sysfs-firmware-opal-psr b/Documentation/ABI/testing/sysfs-firmware-opal-psr
index cc2ece70e365..1e55b56a0f89 100644
--- a/Documentation/ABI/testing/sysfs-firmware-opal-psr
+++ b/Documentation/ABI/testing/sysfs-firmware-opal-psr
@@ -1,6 +1,6 @@
What: /sys/firmware/opal/psr
Date: August 2017
-Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
+Contact: Linux for PowerPC mailing list <linuxppc-dev@lists.ozlabs.org>
Description: Power-Shift-Ratio directory for Powernv P9 servers
Power-Shift-Ratio allows to provide hints the firmware
@@ -10,7 +10,7 @@ Description: Power-Shift-Ratio directory for Powernv P9 servers
What: /sys/firmware/opal/psr/cpu_to_gpu_X
Date: August 2017
-Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
+Contact: Linux for PowerPC mailing list <linuxppc-dev@lists.ozlabs.org>
Description: PSR sysfs attributes for Powernv P9 servers
Power-Shift-Ratio between CPU and GPU for a given chip
diff --git a/Documentation/ABI/testing/sysfs-firmware-opal-sensor-groups b/Documentation/ABI/testing/sysfs-firmware-opal-sensor-groups
index 3a2dfe542e8c..fcb1fb4795b6 100644
--- a/Documentation/ABI/testing/sysfs-firmware-opal-sensor-groups
+++ b/Documentation/ABI/testing/sysfs-firmware-opal-sensor-groups
@@ -1,6 +1,6 @@
What: /sys/firmware/opal/sensor_groups
Date: August 2017
-Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
+Contact: Linux for PowerPC mailing list <linuxppc-dev@lists.ozlabs.org>
Description: Sensor groups directory for POWER9 powernv servers
Each folder in this directory contains a sensor group
@@ -11,7 +11,7 @@ Description: Sensor groups directory for POWER9 powernv servers
What: /sys/firmware/opal/sensor_groups/<sensor_group_name>/clear
Date: August 2017
-Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
+Contact: Linux for PowerPC mailing list <linuxppc-dev@lists.ozlabs.org>
Description: Sysfs file to clear the min-max of all the sensors
belonging to the group.
diff --git a/Documentation/ABI/testing/sysfs-firmware-papr-energy-scale-info b/Documentation/ABI/testing/sysfs-firmware-papr-energy-scale-info
index 141a6b371469..f5cefb81ac9d 100644
--- a/Documentation/ABI/testing/sysfs-firmware-papr-energy-scale-info
+++ b/Documentation/ABI/testing/sysfs-firmware-papr-energy-scale-info
@@ -1,6 +1,6 @@
What: /sys/firmware/papr/energy_scale_info
Date: February 2022
-Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
+Contact: Linux for PowerPC mailing list <linuxppc-dev@lists.ozlabs.org>
Description: Directory hosting a set of platform attributes like
energy/frequency on Linux running as a PAPR guest.
@@ -10,20 +10,20 @@ Description: Directory hosting a set of platform attributes like
What: /sys/firmware/papr/energy_scale_info/<id>
Date: February 2022
-Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
+Contact: Linux for PowerPC mailing list <linuxppc-dev@lists.ozlabs.org>
Description: Energy, frequency attributes directory for POWERVM servers
What: /sys/firmware/papr/energy_scale_info/<id>/desc
Date: February 2022
-Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
+Contact: Linux for PowerPC mailing list <linuxppc-dev@lists.ozlabs.org>
Description: String description of the energy attribute of <id>
What: /sys/firmware/papr/energy_scale_info/<id>/value
Date: February 2022
-Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
+Contact: Linux for PowerPC mailing list <linuxppc-dev@lists.ozlabs.org>
Description: Numeric value of the energy attribute of <id>
What: /sys/firmware/papr/energy_scale_info/<id>/value_desc
Date: February 2022
-Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
+Contact: Linux for PowerPC mailing list <linuxppc-dev@lists.ozlabs.org>
Description: String value of the energy attribute of <id>
diff --git a/Documentation/ABI/testing/sysfs-firmware-sgi_uv b/Documentation/ABI/testing/sysfs-firmware-sgi_uv
index 12ed843e1d3e..7fe9244b87bb 100644
--- a/Documentation/ABI/testing/sysfs-firmware-sgi_uv
+++ b/Documentation/ABI/testing/sysfs-firmware-sgi_uv
@@ -102,12 +102,12 @@ Description:
conn_port
The conn_hub entry contains a value representing the unique
- oridinal value of the hub on the other end of the fabric
+ ordinal value of the hub on the other end of the fabric
cable plugged into the port. If the port is disconnected,
the value returned will be -1.
The conn_port entry contains a value representing the unique
- oridinal value of the port on the other end of the fabric cable
+ ordinal value of the port on the other end of the fabric cable
plugged into the port. If the port is disconnected, the value
returned will be -1.
diff --git a/Documentation/ABI/testing/sysfs-firmware-turris-mox-rwtm b/Documentation/ABI/testing/sysfs-firmware-turris-mox-rwtm
index ea5e5b489bc7..26741cb84504 100644
--- a/Documentation/ABI/testing/sysfs-firmware-turris-mox-rwtm
+++ b/Documentation/ABI/testing/sysfs-firmware-turris-mox-rwtm
@@ -12,15 +12,6 @@ Contact: Marek Behún <kabel@kernel.org>
Description: (Read) MAC addresses burned into eFuses of this Turris Mox board.
Format: %pM
-What: /sys/firmware/turris-mox-rwtm/pubkey
-Date: August 2019
-KernelVersion: 5.4
-Contact: Marek Behún <kabel@kernel.org>
-Description: (Read) ECDSA public key (in pubkey hex compressed form) computed
- as pair to the ECDSA private key burned into eFuses of this
- Turris Mox Board.
- Format: string
-
What: /sys/firmware/turris-mox-rwtm/ram_size
Date: August 2019
KernelVersion: 5.4
diff --git a/Documentation/ABI/testing/sysfs-fs-erofs b/Documentation/ABI/testing/sysfs-fs-erofs
index 284224d1b56f..76d9808ed581 100644
--- a/Documentation/ABI/testing/sysfs-fs-erofs
+++ b/Documentation/ABI/testing/sysfs-fs-erofs
@@ -5,7 +5,7 @@ Description: Shows all enabled kernel features.
Supported features:
zero_padding, compr_cfgs, big_pcluster, chunked_file,
device_table, compr_head2, sb_chksum, ztailpacking,
- dedupe, fragments.
+ dedupe, fragments, 48bit, metabox.
What: /sys/fs/erofs/<disk>/sync_decompress
Date: November 2021
@@ -16,3 +16,30 @@ Description: Control strategy of sync decompression:
readahead on atomic contexts only.
- 1 (force on): enable for readpage and readahead.
- 2 (force off): disable for all situations.
+
+What: /sys/fs/erofs/<disk>/drop_caches
+Date: November 2024
+Contact: "Guo Chunhai" <guochunhai@vivo.com>
+Description: Writing to this will drop compression-related caches,
+ currently used to drop in-memory pclusters and cached
+ compressed folios:
+
+ - 1 : invalidate cached compressed folios
+ - 2 : drop in-memory pclusters
+ - 3 : drop in-memory pclusters and cached compressed folios
+
+What: /sys/fs/erofs/accel
+Date: May 2025
+Contact: "Bo Liu" <liubo03@inspur.com>
+Description: Used to set or show hardware accelerators in effect
+ and multiple accelerators are separated by '\n'.
+ Supported accelerator(s): qat_deflate.
+ Disable all accelerators with an empty string (echo > accel).
+
+What: /sys/fs/erofs/<disk>/dir_ra_bytes
+Date: July 2025
+Contact: "Chao Yu" <chao@kernel.org>
+Description: Used to set or show readahead bytes during readdir(), by
+ default the value is 16384.
+
+ - 0: disable readahead.
diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs
index 8140fc98f5ae..770470e0598b 100644
--- a/Documentation/ABI/testing/sysfs-fs-f2fs
+++ b/Documentation/ABI/testing/sysfs-fs-f2fs
@@ -54,9 +54,9 @@ Description: Controls the in-place-update policy.
0x00 DISABLE disable IPU(=default option in LFS mode)
0x01 FORCE all the time
0x02 SSR if SSR mode is activated
- 0x04 UTIL if FS utilization is over threashold
+ 0x04 UTIL if FS utilization is over threshold
0x08 SSR_UTIL if SSR mode is activated and FS utilization is over
- threashold
+ threshold
0x10 FSYNC activated in fsync path only for high performance
flash storages. IPU will be triggered only if the
# of dirty pages over min_fsync_blocks.
@@ -102,9 +102,9 @@ What: /sys/fs/f2fs/<disk>/max_small_discards
Date: November 2013
Contact: "Jaegeuk Kim" <jaegeuk.kim@samsung.com>
Description: Controls the issue rate of discard commands that consist of small
- blocks less than 2MB. The candidates to be discarded are cached until
- checkpoint is triggered, and issued during the checkpoint.
- By default, it is disabled with 0.
+ blocks less than 2MB. The candidates to be discarded are cached during
+ checkpoint, and issued by issue_discard thread after checkpoint.
+ It is enabled by default.
What: /sys/fs/f2fs/<disk>/max_ordered_discard
Date: October 2022
@@ -117,7 +117,7 @@ Date: December 2021
Contact: "Konstantin Vyshetsky" <vkon@google.com>
Description: Controls the number of discards a thread will issue at a time.
Higher number will allow the discard thread to finish its work
- faster, at the cost of higher latency for incomming I/O.
+ faster, at the cost of higher latency for incoming I/O.
What: /sys/fs/f2fs/<disk>/min_discard_issue_time
Date: December 2021
@@ -205,7 +205,7 @@ Description: Controls the idle timing of system, if there is no FS operation
What: /sys/fs/f2fs/<disk>/discard_idle_interval
Date: September 2018
Contact: "Chao Yu" <yuchao0@huawei.com>
-Contact: "Sahitya Tummala" <stummala@codeaurora.org>
+Contact: "Sahitya Tummala" <quic_stummala@quicinc.com>
Description: Controls the idle timing of discard thread given
this time interval.
Default is 5 secs.
@@ -213,7 +213,7 @@ Description: Controls the idle timing of discard thread given
What: /sys/fs/f2fs/<disk>/gc_idle_interval
Date: September 2018
Contact: "Chao Yu" <yuchao0@huawei.com>
-Contact: "Sahitya Tummala" <stummala@codeaurora.org>
+Contact: "Sahitya Tummala" <quic_stummala@quicinc.com>
Description: Controls the idle timing for gc path. Set to 5 seconds by default.
What: /sys/fs/f2fs/<disk>/iostat_enable
@@ -270,7 +270,7 @@ Description: Shows all enabled kernel features.
inode_checksum, flexible_inline_xattr, quota_ino,
inode_crtime, lost_found, verity, sb_checksum,
casefold, readonly, compression, test_dummy_encryption_v2,
- atomic_write, pin_file, encrypted_casefold.
+ atomic_write, pin_file, encrypted_casefold, linear_lookup.
What: /sys/fs/f2fs/<disk>/inject_rate
Date: May 2016
@@ -311,10 +311,13 @@ Description: Do background GC aggressively when set. Set to 0 by default.
GC approach and turns SSR mode on.
gc urgent low(2): lowers the bar of checking I/O idling in
order to process outstanding discard commands and GC a
- little bit aggressively. uses cost benefit GC approach.
+ little bit aggressively. always uses cost benefit GC approach,
+ and will override age-threshold GC approach if ATGC is enabled
+ at the same time.
gc urgent mid(3): does GC forcibly in a period of given
gc_urgent_sleep_time and executes a mid level of I/O idling check.
- uses cost benefit GC approach.
+ always uses cost benefit GC approach, and will override
+ age-threshold GC approach if ATGC is enabled at the same time.
What: /sys/fs/f2fs/<disk>/gc_urgent_sleep_time
Date: August 2017
@@ -331,10 +334,10 @@ Date: January 2018
Contact: Jaegeuk Kim <jaegeuk@kernel.org>
Description: This indicates how many GC can be failed for the pinned
file. If it exceeds this, F2FS doesn't guarantee its pinning
- state. 2048 trials is set by default.
+ state. 2048 trials is set by default, and 65535 as maximum.
What: /sys/fs/f2fs/<disk>/extension_list
-Date: Feburary 2018
+Date: February 2018
Contact: "Chao Yu" <yuchao0@huawei.com>
Description: Used to control configure extension list:
- Query: cat /sys/fs/f2fs/<disk>/extension_list
@@ -344,7 +347,7 @@ Description: Used to control configure extension list:
- [c] means add/del cold file extension
What: /sys/fs/f2fs/<disk>/unusable
-Date April 2019
+Date: April 2019
Contact: "Daniel Rosenberg" <drosen@google.com>
Description: If checkpoint=disable, it displays the number of blocks that
are unusable.
@@ -352,7 +355,7 @@ Description: If checkpoint=disable, it displays the number of blocks that
would be unusable if checkpoint=disable were to be set.
What: /sys/fs/f2fs/<disk>/encoding
-Date July 2019
+Date: July 2019
Contact: "Daniel Rosenberg" <drosen@google.com>
Description: Displays name and version of the encoding set for the filesystem.
If no encoding is set, displays (none)
@@ -498,6 +501,21 @@ Description: Show status of f2fs checkpoint in real time.
CP_RESIZEFS_FLAG 0x00004000
=============================== ==============================
+What: /sys/fs/f2fs/<disk>/stat/issued_discard
+Date: December 2023
+Contact: "Zhiguo Niu" <zhiguo.niu@unisoc.com>
+Description: Shows the number of issued discard.
+
+What: /sys/fs/f2fs/<disk>/stat/queued_discard
+Date: December 2023
+Contact: "Zhiguo Niu" <zhiguo.niu@unisoc.com>
+Description: Shows the number of queued discard.
+
+What: /sys/fs/f2fs/<disk>/stat/undiscard_blks
+Date: December 2023
+Contact: "Zhiguo Niu" <zhiguo.niu@unisoc.com>
+Description: Shows the total number of undiscard blocks.
+
What: /sys/fs/f2fs/<disk>/ckpt_thread_ioprio
Date: January 2021
Contact: "Daeho Jeong" <daehojeong@google.com>
@@ -564,6 +582,12 @@ Description: When ATGC is on, it controls age threshold to bypass GCing young
candidates whose age is not beyond the threshold, by default it was
initialized as 604800 seconds (equals to 7 days).
+What: /sys/fs/f2fs/<disk>/atgc_enabled
+Date: Feb 2024
+Contact: "Jinbao Liu" <liujinbao1@xiaomi.com>
+Description: It represents whether ATGC is on or off. The value is 1 which
+ indicates that ATGC is on, and 0 indicates that it is off.
+
What: /sys/fs/f2fs/<disk>/gc_reclaimed_segments
Date: July 2021
Contact: "Daeho Jeong" <daehojeong@google.com>
@@ -619,6 +643,12 @@ Contact: "Jaegeuk Kim" <jaegeuk@kernel.org>
Description: Shows the number of unusable blocks in a section which was defined by
the zone capacity reported by underlying zoned device.
+What: /sys/fs/f2fs/<disk>/max_open_zones
+Date: November 2025
+Contact: "Yongpeng Yang" <yangyongpeng@xiaomi.com>
+Description: Shows the max number of zones that F2FS can write concurrently when a zoned
+ device is mounted.
+
What: /sys/fs/f2fs/<disk>/current_atomic_write
Date: July 2022
Contact: "Daeho Jeong" <daehojeong@google.com>
@@ -686,29 +716,34 @@ Description: Support configuring fault injection type, should be
enabled with fault_injection option, fault type value
is shown below, it supports single or combined type.
- =================== ===========
- Type_Name Type_Value
- =================== ===========
- FAULT_KMALLOC 0x000000001
- FAULT_KVMALLOC 0x000000002
- FAULT_PAGE_ALLOC 0x000000004
- FAULT_PAGE_GET 0x000000008
- FAULT_ALLOC_BIO 0x000000010 (obsolete)
- FAULT_ALLOC_NID 0x000000020
- FAULT_ORPHAN 0x000000040
- FAULT_BLOCK 0x000000080
- FAULT_DIR_DEPTH 0x000000100
- FAULT_EVICT_INODE 0x000000200
- FAULT_TRUNCATE 0x000000400
- FAULT_READ_IO 0x000000800
- FAULT_CHECKPOINT 0x000001000
- FAULT_DISCARD 0x000002000
- FAULT_WRITE_IO 0x000004000
- FAULT_SLAB_ALLOC 0x000008000
- FAULT_DQUOT_INIT 0x000010000
- FAULT_LOCK_OP 0x000020000
- FAULT_BLKADDR 0x000040000
- =================== ===========
+ =========================== ==========
+ Type_Name Type_Value
+ =========================== ==========
+ FAULT_KMALLOC 0x00000001
+ FAULT_KVMALLOC 0x00000002
+ FAULT_PAGE_ALLOC 0x00000004
+ FAULT_PAGE_GET 0x00000008
+ FAULT_ALLOC_BIO 0x00000010 (obsolete)
+ FAULT_ALLOC_NID 0x00000020
+ FAULT_ORPHAN 0x00000040
+ FAULT_BLOCK 0x00000080
+ FAULT_DIR_DEPTH 0x00000100
+ FAULT_EVICT_INODE 0x00000200
+ FAULT_TRUNCATE 0x00000400
+ FAULT_READ_IO 0x00000800
+ FAULT_CHECKPOINT 0x00001000
+ FAULT_DISCARD 0x00002000
+ FAULT_WRITE_IO 0x00004000
+ FAULT_SLAB_ALLOC 0x00008000
+ FAULT_DQUOT_INIT 0x00010000
+ FAULT_LOCK_OP 0x00020000
+ FAULT_BLKADDR_VALIDITY 0x00040000
+ FAULT_BLKADDR_CONSISTENCE 0x00080000
+ FAULT_NO_SEGMENT 0x00100000
+ FAULT_INCONSISTENT_FOOTER 0x00200000
+ FAULT_TIMEOUT 0x00400000 (1000ms)
+ FAULT_VMALLOC 0x00800000
+ =========================== ==========
What: /sys/fs/f2fs/<disk>/discard_io_aware_gran
Date: January 2023
@@ -740,3 +775,167 @@ Description: When compress cache is on, it controls cached page
If cached page percent exceed threshold, then deny caching compress page.
The value should be in range of (0, 100], by default it was initialized
as 20(%).
+
+What: /sys/fs/f2fs/<disk>/discard_io_aware
+Date: November 2023
+Contact: "Chao Yu" <chao@kernel.org>
+Description: It controls to enable/disable IO aware feature for background discard.
+ By default, the value is 1 which indicates IO aware is on.
+
+What: /sys/fs/f2fs/<disk>/blkzone_alloc_policy
+Date: July 2024
+Contact: "Yuanhong Liao" <liaoyuanhong@vivo.com>
+Description: The zone UFS we are currently using consists of two parts:
+ conventional zones and sequential zones. It can be used to control which part
+ to prioritize for writes, with a default value of 0.
+
+ ======================== =========================================
+ value description
+ blkzone_alloc_policy = 0 Prioritize writing to sequential zones
+ blkzone_alloc_policy = 1 Only allow writing to sequential zones
+ blkzone_alloc_policy = 2 Prioritize writing to conventional zones
+ ======================== =========================================
+
+What: /sys/fs/f2fs/<disk>/migration_window_granularity
+Date: September 2024
+Contact: "Daeho Jeong" <daehojeong@google.com>
+Description: Controls migration window granularity of garbage collection on large
+ section. it can control the scanning window granularity for GC migration
+ in a unit of segment, while migration_granularity controls the number
+ of segments which can be migrated at the same turn.
+
+What: /sys/fs/f2fs/<disk>/reserved_segments
+Date: September 2024
+Contact: "Daeho Jeong" <daehojeong@google.com>
+Description: In order to fine tune GC behavior, we can control the number of
+ reserved segments.
+
+What: /sys/fs/f2fs/<disk>/gc_no_zoned_gc_percent
+Date: September 2024
+Contact: "Daeho Jeong" <daehojeong@google.com>
+Description: If the percentage of free sections over total sections is above this
+ number, F2FS do not garbage collection for zoned devices through the
+ background GC thread. the default number is "60".
+
+What: /sys/fs/f2fs/<disk>/gc_boost_zoned_gc_percent
+Date: September 2024
+Contact: "Daeho Jeong" <daehojeong@google.com>
+Description: If the percentage of free sections over total sections is under this
+ number, F2FS boosts garbage collection for zoned devices through the
+ background GC thread. the default number is "25".
+
+What: /sys/fs/f2fs/<disk>/gc_valid_thresh_ratio
+Date: September 2024
+Contact: "Daeho Jeong" <daehojeong@google.com>
+Description: It controls the valid block ratio threshold not to trigger excessive GC
+ for zoned devices. The initial value of it is 95(%). F2FS will stop the
+ background GC thread from initiating GC for sections having valid blocks
+ exceeding the ratio.
+
+What: /sys/fs/f2fs/<disk>/max_read_extent_count
+Date: November 2024
+Contact: "Chao Yu" <chao@kernel.org>
+Description: It controls max read extent count for per-inode, the value of threshold
+ is 10240 by default.
+
+What: /sys/fs/f2fs/tuning/reclaim_caches_kb
+Date: February 2025
+Contact: "Jaegeuk Kim" <jaegeuk@kernel.org>
+Description: It reclaims the given KBs of file-backed pages registered by
+ ioctl(F2FS_IOC_DONATE_RANGE).
+ For example, writing N tries to drop N KBs spaces in LRU.
+
+What: /sys/fs/f2fs/<disk>/carve_out
+Date: March 2025
+Contact: "Daeho Jeong" <daehojeong@google.com>
+Description: For several zoned storage devices, vendors will provide extra space which
+ was used for device level GC than specs and F2FS can use this space for
+ filesystem level GC. To do that, we can reserve the space using
+ reserved_blocks. However, it is not enough, since this extra space should
+ not be shown to users. So, with this new sysfs node, we can hide the space
+ by subtracting reserved_blocks from total bytes.
+
+What: /sys/fs/f2fs/<disk>/encoding_flags
+Date: April 2025
+Contact: "Chao Yu" <chao@kernel.org>
+Description: This is a read-only entry to show the value of sb.s_encoding_flags, the
+ value is hexadecimal.
+
+ ============================ ==========
+ Flag_Name Flag_Value
+ ============================ ==========
+ SB_ENC_STRICT_MODE_FL 0x00000001
+ SB_ENC_NO_COMPAT_FALLBACK_FL 0x00000002
+ ============================ ==========
+
+What: /sys/fs/f2fs/<disk>/reserved_pin_section
+Date: June 2025
+Contact: "Chao Yu" <chao@kernel.org>
+Description: This threshold is used to control triggering garbage collection while
+ fallocating on pinned file, so, it can guarantee there is enough free
+ reserved section before preallocating on pinned file.
+ By default, the value is ovp_sections, especially, for zoned ufs, the
+ value is 1.
+
+What: /sys/fs/f2fs/<disk>/gc_boost_gc_multiple
+Date: June 2025
+Contact: "Daeho Jeong" <daehojeong@google.com>
+Description: Set a multiplier for the background GC migration window when F2FS GC is
+ boosted. The range should be from 1 to the segment count in a section.
+ Default: 5
+
+What: /sys/fs/f2fs/<disk>/gc_boost_gc_greedy
+Date: June 2025
+Contact: "Daeho Jeong" <daehojeong@google.com>
+Description: Control GC algorithm for boost GC. 0: cost benefit, 1: greedy
+ Default: 1
+
+What: /sys/fs/f2fs/<disk>/effective_lookup_mode
+Date: August 2025
+Contact: "Daniel Lee" <chullee@google.com>
+Description:
+ This is a read-only entry to show the effective directory lookup mode
+ F2FS is currently using for casefolded directories.
+ This considers both the "lookup_mode" mount option and the on-disk
+ encoding flag, SB_ENC_NO_COMPAT_FALLBACK_FL.
+
+ Possible values are:
+ - "perf": Hash-only lookup.
+ - "compat": Hash-based lookup with a linear search fallback enabled
+ - "auto:perf": lookup_mode is auto and fallback is disabled on-disk
+ - "auto:compat": lookup_mode is auto and fallback is enabled on-disk
+
+What: /sys/fs/f2fs/<disk>/bggc_io_aware
+Date: August 2025
+Contact: "Liao Yuanhong" <liaoyuanhong@vivo.com>
+Description: Used to adjust the BG_GC priority when pending IO, with a default value
+ of 0. Specifically, for ZUFS, the default value is 1.
+
+ ================== ======================================================
+ value description
+ bggc_io_aware = 0 skip background GC if there is any kind of pending IO
+ bggc_io_aware = 1 skip background GC if there is pending read IO
+ bggc_io_aware = 2 don't aware IO for background GC
+ ================== ======================================================
+
+What: /sys/fs/f2fs/<disk>/allocate_section_hint
+Date: August 2025
+Contact: "Liao Yuanhong" <liaoyuanhong@vivo.com>
+Description: Indicates the hint section between the first device and others in multi-devices
+ setup. It defaults to the end of the first device in sections. For a single storage
+ device, it defaults to the total number of sections. It can be manually set to match
+ scenarios where multi-devices are mapped to the same dm device.
+
+What: /sys/fs/f2fs/<disk>/allocate_section_policy
+Date: August 2025
+Contact: "Liao Yuanhong" <liaoyuanhong@vivo.com>
+Description: Controls write priority in multi-devices setups. A value of 0 means normal writing.
+ A value of 1 prioritizes writing to devices before the allocate_section_hint. A value of 2
+ prioritizes writing to devices after the allocate_section_hint. The default is 0.
+
+ =========================== ==========================================================
+ value description
+ allocate_section_policy = 0 Normal writing
+ allocate_section_policy = 1 Prioritize writing to section before allocate_section_hint
+ allocate_section_policy = 2 Prioritize writing to section after allocate_section_hint
+ =========================== ==========================================================
diff --git a/Documentation/ABI/testing/sysfs-fs-virtiofs b/Documentation/ABI/testing/sysfs-fs-virtiofs
new file mode 100644
index 000000000000..4839dbce997e
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-fs-virtiofs
@@ -0,0 +1,11 @@
+What: /sys/fs/virtiofs/<n>/tag
+Date: Feb 2024
+Contact: virtio-fs@lists.linux.dev
+Description:
+ [RO] The mount "tag" that can be used to mount this filesystem.
+
+What: /sys/fs/virtiofs/<n>/device
+Date: Feb 2024
+Contact: virtio-fs@lists.linux.dev
+Description:
+ Symlink to the virtio device that exports this filesystem.
diff --git a/Documentation/ABI/testing/sysfs-fs-xfs b/Documentation/ABI/testing/sysfs-fs-xfs
index f704925f6fe9..7da4de948b46 100644
--- a/Documentation/ABI/testing/sysfs-fs-xfs
+++ b/Documentation/ABI/testing/sysfs-fs-xfs
@@ -1,7 +1,7 @@
What: /sys/fs/xfs/<disk>/log/log_head_lsn
Date: July 2014
KernelVersion: 3.17
-Contact: xfs@oss.sgi.com
+Contact: linux-xfs@vger.kernel.org
Description:
The log sequence number (LSN) of the current head of the
log. The LSN is exported in "cycle:basic block" format.
@@ -10,30 +10,28 @@ Users: xfstests
What: /sys/fs/xfs/<disk>/log/log_tail_lsn
Date: July 2014
KernelVersion: 3.17
-Contact: xfs@oss.sgi.com
+Contact: linux-xfs@vger.kernel.org
Description:
The log sequence number (LSN) of the current tail of the
log. The LSN is exported in "cycle:basic block" format.
-What: /sys/fs/xfs/<disk>/log/reserve_grant_head
-Date: July 2014
-KernelVersion: 3.17
-Contact: xfs@oss.sgi.com
+What: /sys/fs/xfs/<disk>/log/reserve_grant_head_bytes
+Date: June 2024
+KernelVersion: 6.11
+Contact: linux-xfs@vger.kernel.org
Description:
The current state of the log reserve grant head. It
represents the total log reservation of all currently
- outstanding transactions. The grant head is exported in
- "cycle:bytes" format.
+ outstanding transactions in bytes.
Users: xfstests
-What: /sys/fs/xfs/<disk>/log/write_grant_head
-Date: July 2014
-KernelVersion: 3.17
-Contact: xfs@oss.sgi.com
+What: /sys/fs/xfs/<disk>/log/write_grant_head_bytes
+Date: June 2024
+KernelVersion: 6.11
+Contact: linux-xfs@vger.kernel.org
Description:
The current state of the log write grant head. It
represents the total log reservation of all currently
outstanding transactions, including regrants due to
- rolling transactions. The grant head is exported in
- "cycle:bytes" format.
+ rolling transactions in bytes.
Users: xfstests
diff --git a/Documentation/ABI/testing/sysfs-kernel-address_bits b/Documentation/ABI/testing/sysfs-kernel-address_bits
index 5d09ff84d4d6..3b72e48086aa 100644
--- a/Documentation/ABI/testing/sysfs-kernel-address_bits
+++ b/Documentation/ABI/testing/sysfs-kernel-address_bits
@@ -1,4 +1,4 @@
-What: /sys/kernel/address_bit
+What: /sys/kernel/address_bits
Date: May 2023
KernelVersion: 6.3
Contact: Thomas Weißschuh <linux@weissschuh.net>
diff --git a/Documentation/ABI/testing/sysfs-kernel-fadump b/Documentation/ABI/testing/sysfs-kernel-fadump
index 8f7a64a81783..b64b7622e6fc 100644
--- a/Documentation/ABI/testing/sysfs-kernel-fadump
+++ b/Documentation/ABI/testing/sysfs-kernel-fadump
@@ -38,3 +38,22 @@ Contact: linuxppc-dev@lists.ozlabs.org
Description: read only
Provide information about the amount of memory reserved by
FADump to save the crash dump in bytes.
+
+What: /sys/kernel/fadump/hotplug_ready
+Date: Apr 2024
+Contact: linuxppc-dev@lists.ozlabs.org
+Description: read only
+ Kdump udev rule re-registers fadump on memory add/remove events,
+ primarily to update the elfcorehdr. This sysfs indicates the
+ kdump udev rule that fadump re-registration is not required on
+ memory add/remove events because elfcorehdr is now prepared in
+ the second/fadump kernel.
+User: kexec-tools
+
+What: /sys/kernel/fadump/bootargs_append
+Date: May 2024
+Contact: linuxppc-dev@lists.ozlabs.org
+Description: read/write
+ This is a special sysfs file available to setup additional
+ parameters to be passed to capture kernel. For HASH MMU it
+ is exported only if RMA size higher than 768MB.
diff --git a/Documentation/ABI/testing/sysfs-kernel-hardlockup_count b/Documentation/ABI/testing/sysfs-kernel-hardlockup_count
new file mode 100644
index 000000000000..dfdd4078b077
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-kernel-hardlockup_count
@@ -0,0 +1,7 @@
+What: /sys/kernel/hardlockup_count
+Date: May 2025
+KernelVersion: 6.16
+Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org>
+Description:
+ Shows how many times the system has detected a hard lockup since last boot.
+ Available only if CONFIG_HARDLOCKUP_DETECTOR is enabled.
diff --git a/Documentation/ABI/testing/sysfs-kernel-kexec-kdump b/Documentation/ABI/testing/sysfs-kernel-kexec-kdump
new file mode 100644
index 000000000000..f59051b5d96d
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-kernel-kexec-kdump
@@ -0,0 +1,61 @@
+What: /sys/kernel/kexec/*
+Date: Nov 2025
+Contact: kexec@lists.infradead.org
+Description:
+ The /sys/kernel/kexec/* directory contains sysfs files
+ that provide information about the configuration status
+ of kexec and kdump.
+
+What: /sys/kernel/kexec/loaded
+Date: Nov 2025
+Contact: kexec@lists.infradead.org
+Description: read only
+ Indicates whether a new kernel image has been loaded
+ into memory using the kexec system call. It shows 1 if
+ a kexec image is present and ready to boot, or 0 if none
+ is loaded.
+User: kexec tools, kdump service
+
+What: /sys/kernel/kexec/crash_loaded
+Date: Nov 2025
+Contact: kexec@lists.infradead.org
+Description: read only
+ Indicates whether a crash (kdump) kernel is currently
+ loaded into memory. It shows 1 if a crash kernel has been
+ successfully loaded for panic handling, or 0 if no crash
+ kernel is present.
+User: Kexec tools, Kdump service
+
+What: /sys/kernel/kexec/crash_size
+Date: Nov 2025
+Contact: kexec@lists.infradead.org
+Description: read/write
+ Shows the amount of memory reserved for loading the crash
+ (kdump) kernel. It reports the size, in bytes, of the
+ crash kernel area defined by the crashkernel= parameter.
+ This interface also allows reducing the crashkernel
+ reservation by writing a smaller value, and the reclaimed
+ space is added back to the system RAM.
+User: Kdump service
+
+What: /sys/kernel/kexec/crash_elfcorehdr_size
+Date: Nov 2025
+Contact: kexec@lists.infradead.org
+Description: read only
+ Indicates the preferred size of the memory buffer for the
+ ELF core header used by the crash (kdump) kernel. It defines
+ how much space is needed to hold metadata about the crashed
+ system, including CPU and memory information. This information
+ is used by the user space utility kexec to support updating the
+ in-kernel kdump image during hotplug operations.
+User: Kexec tools
+
+What: /sys/kernel/kexec/crash_cma_ranges
+Date: Nov 2025
+Contact: kexec@lists.infradead.org
+Description: read only
+ Provides information about the memory ranges reserved from
+ the Contiguous Memory Allocator (CMA) area that are allocated
+ to the crash (kdump) kernel. It lists the start and end physical
+ addresses of CMA regions assigned for crashkernel use.
+User: kdump service
diff --git a/Documentation/ABI/testing/sysfs-kernel-livepatch b/Documentation/ABI/testing/sysfs-kernel-livepatch
index a5df9b4910dc..3c3f36b32b57 100644
--- a/Documentation/ABI/testing/sysfs-kernel-livepatch
+++ b/Documentation/ABI/testing/sysfs-kernel-livepatch
@@ -47,6 +47,23 @@ Description:
disabled when the feature is used. See
Documentation/livepatch/livepatch.rst for more information.
+What: /sys/kernel/livepatch/<patch>/replace
+Date: Jun 2024
+KernelVersion: 6.11.0
+Contact: live-patching@vger.kernel.org
+Description:
+ An attribute which indicates whether the patch supports
+ atomic-replace.
+
+What: /sys/kernel/livepatch/<patch>/stack_order
+Date: Jan 2025
+KernelVersion: 6.14.0
+Description:
+ This attribute specifies the sequence in which live patch modules
+ are applied to the system. If multiple live patches modify the same
+ function, the implementation with the biggest 'stack_order' number
+ is used, unless a transition is currently in progress.
+
What: /sys/kernel/livepatch/<patch>/<object>
Date: Nov 2014
KernelVersion: 3.19.0
diff --git a/Documentation/ABI/testing/sysfs-kernel-mm-cma b/Documentation/ABI/testing/sysfs-kernel-mm-cma
index 02b2bb60c296..aaf2a5d8b13b 100644
--- a/Documentation/ABI/testing/sysfs-kernel-mm-cma
+++ b/Documentation/ABI/testing/sysfs-kernel-mm-cma
@@ -23,3 +23,22 @@ Date: Feb 2021
Contact: Minchan Kim <minchan@kernel.org>
Description:
the number of pages CMA API failed to allocate
+
+What: /sys/kernel/mm/cma/<cma-heap-name>/release_pages_success
+Date: Feb 2024
+Contact: Anshuman Khandual <anshuman.khandual@arm.com>
+Description:
+ the number of pages CMA API succeeded to release
+
+What: /sys/kernel/mm/cma/<cma-heap-name>/total_pages
+Date: Jun 2024
+Contact: Frank van der Linden <fvdl@google.com>
+Description:
+ The size of the CMA area in pages.
+
+What: /sys/kernel/mm/cma/<cma-heap-name>/available_pages
+Date: Jun 2024
+Contact: Frank van der Linden <fvdl@google.com>
+Description:
+ The number of pages in the CMA area that are still
+ available for CMA allocation.
diff --git a/Documentation/ABI/testing/sysfs-kernel-mm-damon b/Documentation/ABI/testing/sysfs-kernel-mm-damon
index 2744f21b5a6b..4fb8b7a6d625 100644
--- a/Documentation/ABI/testing/sysfs-kernel-mm-damon
+++ b/Documentation/ABI/testing/sysfs-kernel-mm-damon
@@ -25,12 +25,18 @@ Description: Writing 'on' or 'off' to this file makes the kdamond starts or
stops, respectively. Reading the file returns the keywords
based on the current status. Writing 'commit' to this file
makes the kdamond reads the user inputs in the sysfs files
- except 'state' again. Writing 'update_schemes_stats' to the
- file updates contents of schemes stats files of the kdamond.
- Writing 'update_schemes_tried_regions' to the file updates
- contents of 'tried_regions' directory of every scheme directory
- of this kdamond. Writing 'clear_schemes_tried_regions' to the
- file removes contents of the 'tried_regions' directory.
+ except 'state' again. Writing 'commit_schemes_quota_goals' to
+ this file makes the kdamond reads the quota goal files again.
+ Writing 'update_schemes_stats' to the file updates contents of
+ schemes stats files of the kdamond. Writing
+ 'update_schemes_tried_regions' to the file updates contents of
+ 'tried_regions' directory of every scheme directory of this
+ kdamond. Writing 'update_schemes_tried_bytes' to the file
+ updates only '.../tried_regions/total_bytes' files of this
+ kdamond. Writing 'clear_schemes_tried_regions' to the file
+ removes contents of the 'tried_regions' directory. Writing
+ 'update_schemes_effective_quotas' to the file updates
+ '.../quotas/effective_bytes' files of this kdamond.
What: /sys/kernel/mm/damon/admin/kdamonds/<K>/pid
Date: Mar 2022
@@ -38,6 +44,13 @@ Contact: SeongJae Park <sj@kernel.org>
Description: Reading this file returns the pid of the kdamond if it is
running.
+What: /sys/kernel/mm/damon/admin/kdamonds/<K>/refresh_ms
+Date: Jul 2025
+Contact: SeongJae Park <sj@kernel.org>
+Description: Writing a value to this file sets the time interval for
+ automatic DAMON status file contents update. Writing '0'
+ disables the update. Reading this file returns the value.
+
What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/nr_contexts
Date: Mar 2022
Contact: SeongJae Park <sj@kernel.org>
@@ -64,6 +77,13 @@ Description: Writing a keyword for a monitoring operations set ('vaddr' for
Note that only the operations sets that listed in
'avail_operations' file are valid inputs.
+What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/addr_unit
+Date: Aug 2025
+Contact: SeongJae Park <sj@kernel.org>
+Description: Writing an integer to this file sets the 'address unit'
+ parameter of the given operations set of the context. Reading
+ the file returns the last-written 'address unit' value.
+
What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/monitoring_attrs/intervals/sample_us
Date: Mar 2022
Contact: SeongJae Park <sj@kernel.org>
@@ -85,6 +105,36 @@ Description: Writing a value to this file sets the update interval of the
DAMON context in microseconds as the value. Reading this file
returns the value.
+What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/monitoring_attrs/intervals/intrvals_goal/access_bp
+Date: Feb 2025
+Contact: SeongJae Park <sj@kernel.org>
+Description: Writing a value to this file sets the monitoring intervals
+ auto-tuning target DAMON-observed access events ratio within
+ the given time interval (aggrs in same directory), in bp
+ (1/10,000). Reading this file returns the value.
+
+What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/monitoring_attrs/intervals/intrvals_goal/aggrs
+Date: Feb 2025
+Contact: SeongJae Park <sj@kernel.org>
+Description: Writing a value to this file sets the time interval to achieve
+ the monitoring intervals auto-tuning target DAMON-observed
+ access events ratio (access_bp in same directory) within.
+ Reading this file returns the value.
+
+What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/monitoring_attrs/intervals/intrvals_goal/min_sample_us
+Date: Feb 2025
+Contact: SeongJae Park <sj@kernel.org>
+Description: Writing a value to this file sets the minimum value of
+ auto-tuned sampling interval in microseconds. Reading this
+ file returns the value.
+
+What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/monitoring_attrs/intervals/intrvals_goal/max_sample_us
+Date: Feb 2025
+Contact: SeongJae Park <sj@kernel.org>
+Description: Writing a value to this file sets the maximum value of
+ auto-tuned sampling interval in microseconds. Reading this
+ file returns the value.
+
What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/monitoring_attrs/nr_regions/min
WDate: Mar 2022
@@ -114,6 +164,13 @@ Description: Writing to and reading from this file sets and gets the pid of
the target process if the context is for virtual address spaces
monitoring, respectively.
+What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/targets/<T>/obsolete_target
+Date: Oct 2025
+Contact: SeongJae Park <sj@kernel.org>
+Description: Writing to and reading from this file sets and gets the
+ obsoleteness of the matching parameters commit destination
+ target.
+
What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/targets/<T>/regions/nr_regions
Date: Mar 2022
Contact: SeongJae Park <sj@kernel.org>
@@ -149,10 +206,23 @@ Contact: SeongJae Park <sj@kernel.org>
Description: Writing to and reading from this file sets and gets the action
of the scheme.
+What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/target_nid
+Date: Jun 2024
+Contact: SeongJae Park <sj@kernel.org>
+Description: Action's target NUMA node id. Supported by only relevant
+ actions.
+
+What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/apply_interval_us
+Date: Sep 2023
+Contact: SeongJae Park <sj@kernel.org>
+Description: Writing a value to this file sets the action apply interval of
+ the scheme in microseconds. Reading this file returns the
+ value.
+
What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/access_pattern/sz/min
Date: Mar 2022
Contact: SeongJae Park <sj@kernel.org>
-Description: Writing to and reading from this file sets and gets the mimimum
+Description: Writing to and reading from this file sets and gets the minimum
size of the scheme's target regions in bytes.
What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/access_pattern/sz/max
@@ -197,12 +267,55 @@ Contact: SeongJae Park <sj@kernel.org>
Description: Writing to and reading from this file sets and gets the size
quota of the scheme in bytes.
+What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/quotas/effective_bytes
+Date: Feb 2024
+Contact: SeongJae Park <sj@kernel.org>
+Description: Reading from this file gets the effective size quota of the
+ scheme in bytes, which adjusted for the time quota and goals.
+
What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/quotas/reset_interval_ms
Date: Mar 2022
Contact: SeongJae Park <sj@kernel.org>
Description: Writing to and reading from this file sets and gets the quotas
charge reset interval of the scheme in milliseconds.
+What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/quotas/goals/nr_goals
+Date: Nov 2023
+Contact: SeongJae Park <sj@kernel.org>
+Description: Writing a number 'N' to this file creates the number of
+ directories for setting automatic tuning of the scheme's
+ aggressiveness named '0' to 'N-1' under the goals/ directory.
+
+What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/quotas/goals/<G>/target_metric
+Date: Feb 2024
+Contact: SeongJae Park <sj@kernel.org>
+Description: Writing to and reading from this file sets and gets the quota
+ auto-tuning goal metric.
+
+What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/quotas/goals/<G>/target_value
+Date: Nov 2023
+Contact: SeongJae Park <sj@kernel.org>
+Description: Writing to and reading from this file sets and gets the target
+ value of the goal metric.
+
+What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/quotas/goals/<G>/current_value
+Date: Nov 2023
+Contact: SeongJae Park <sj@kernel.org>
+Description: Writing to and reading from this file sets and gets the current
+ value of the goal metric.
+
+What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/quotas/goals/<G>/nid
+Date: Apr 2025
+Contact: SeongJae Park <sj@kernel.org>
+Description: Writing to and reading from this file sets and gets the nid
+ parameter of the goal.
+
+What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/quotas/goals/<G>/path
+Date: Oct 2025
+Contact: SeongJae Park <sj@kernel.org>
+Description: Writing to and reading from this file sets and gets the path
+ parameter of the goal.
+
What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/quotas/weights/sz_permil
Date: Mar 2022
Contact: SeongJae Park <sj@kernel.org>
@@ -269,8 +382,10 @@ What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/filters/
Date: Dec 2022
Contact: SeongJae Park <sj@kernel.org>
Description: Writing to and reading from this file sets and gets the type of
- the memory of the interest. 'anon' for anonymous pages, or
- 'memcg' for specific memory cgroup can be written and read.
+ the memory of the interest. 'anon' for anonymous pages,
+ 'memcg' for specific memory cgroup, 'young' for young pages,
+ 'addr' for address range (an open-ended interval), or 'target'
+ for DAMON monitoring target can be written and read.
What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/filters/<F>/memcg_path
Date: Dec 2022
@@ -279,13 +394,91 @@ Description: If 'memcg' is written to the 'type' file, writing to and
reading from this file sets and gets the path to the memory
cgroup of the interest.
+What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/filters/<F>/addr_start
+Date: Jul 2023
+Contact: SeongJae Park <sj@kernel.org>
+Description: If 'addr' is written to the 'type' file, writing to or reading
+ from this file sets or gets the start address of the address
+ range for the filter.
+
+What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/filters/<F>/addr_end
+Date: Jul 2023
+Contact: SeongJae Park <sj@kernel.org>
+Description: If 'addr' is written to the 'type' file, writing to or reading
+ from this file sets or gets the end address of the address
+ range for the filter.
+
+What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/filters/<F>/min
+Date: Feb 2025
+Contact: SeongJae Park <sj@kernel.org>
+Description: If 'hugepage_size' is written to the 'type' file, writing to
+ or reading from this file sets or gets the minimum size of the
+ hugepage for the filter.
+
+What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/filters/<F>/max
+Date: Feb 2025
+Contact: SeongJae Park <sj@kernel.org>
+Description: If 'hugepage_size' is written to the 'type' file, writing to
+ or reading from this file sets or gets the maximum size of the
+ hugepage for the filter.
+
+What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/filters/<F>/target_idx
+Date: Dec 2022
+Contact: SeongJae Park <sj@kernel.org>
+Description: If 'target' is written to the 'type' file, writing to or
+ reading from this file sets or gets the index of the DAMON
+ monitoring target of the interest.
+
What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/filters/<F>/matching
Date: Dec 2022
Contact: SeongJae Park <sj@kernel.org>
-Description: Writing 'Y' or 'N' to this file sets whether to filter out
- pages that do or do not match to the 'type' and 'memcg_path',
- respectively. Filter out means the action of the scheme will
- not be applied to.
+Description: Writing 'Y' or 'N' to this file sets whether the filter is for
+ the memory of the 'type', or all except the 'type'.
+
+What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/filters/<F>/allow
+Date: Jan 2025
+Contact: SeongJae Park <sj@kernel.org>
+Description: Writing 'Y' or 'N' to this file sets whether to allow or reject
+ applying the scheme's action to the memory that satisfies the
+ 'type' and the 'matching' of the directory.
+
+What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/core_filters
+Date: Feb 2025
+Contact: SeongJae Park <sj@kernel.org>
+Description: Directory for DAMON core layer-handled DAMOS filters. Files
+ under this directory works same to those of
+ /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/filters
+ directory.
+
+What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/ops_filters
+Date: Feb 2025
+Contact: SeongJae Park <sj@kernel.org>
+Description: Directory for DAMON operations set layer-handled DAMOS filters.
+ Files under this directory works same to those of
+ /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/filters
+ directory.
+
+What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/dests/nr_dests
+Date: Jul 2025
+Contact: SeongJae Park <sj@kernel.org>
+Description: Writing a number 'N' to this file creates the number of
+ directories for setting action destinations of the scheme named
+ '0' to 'N-1' under the dests/ directory.
+
+What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/dests/<D>/id
+Date: Jul 2025
+Contact: SeongJae Park <sj@kernel.org>
+Description: Writing to and reading from this file sets and gets the id of
+ the DAMOS action destination. For DAMOS_MIGRATE_{HOT,COLD}
+ actions, the destination node's node id can be written and
+ read.
+
+What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/dests/<D>/weight
+Date: Jul 2025
+Contact: SeongJae Park <sj@kernel.org>
+Description: Writing to and reading from this file sets and gets the weight
+ of the DAMOS action destination to select as the destination of
+ each action among the destinations.
What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/stats/nr_tried
Date: Mar 2022
@@ -311,12 +504,25 @@ Contact: SeongJae Park <sj@kernel.org>
Description: Reading this file returns the total size of regions that the
action of the scheme has successfully applied in bytes.
+What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/stats/sz_ops_filter_passed
+Date: Dec 2024
+Contact: SeongJae Park <sj@kernel.org>
+Description: Reading this file returns the total size of memory that passed
+ DAMON operations layer-handled filters of the scheme in bytes.
+
What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/stats/qt_exceeds
Date: Mar 2022
Contact: SeongJae Park <sj@kernel.org>
Description: Reading this file returns the number of the exceed events of
the scheme's quotas.
+What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/tried_regions/total_bytes
+Date: Jul 2023
+Contact: SeongJae Park <sj@kernel.org>
+Description: Reading this file returns the total amount of memory that
+ corresponding DAMON-based Operation Scheme's action has tried
+ to be applied.
+
What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/tried_regions/<R>/start
Date: Oct 2022
Contact: SeongJae Park <sj@kernel.org>
@@ -344,3 +550,10 @@ Contact: SeongJae Park <sj@kernel.org>
Description: Reading this file returns the 'age' of a memory region that
corresponding DAMON-based Operation Scheme's action has tried
to be applied.
+
+What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/tried_regions/<R>/sz_filter_passed
+Date: Dec 2024
+Contact: SeongJae Park <sj@kernel.org>
+Description: Reading this file returns the size of the memory in the region
+ that passed DAMON operations layer-handled filters of the
+ scheme in bytes.
diff --git a/Documentation/ABI/testing/sysfs-kernel-mm-mempolicy b/Documentation/ABI/testing/sysfs-kernel-mm-mempolicy
new file mode 100644
index 000000000000..8ac327fd7fb6
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-kernel-mm-mempolicy
@@ -0,0 +1,4 @@
+What: /sys/kernel/mm/mempolicy/
+Date: January 2024
+Contact: Linux memory management mailing list <linux-mm@kvack.org>
+Description: Interface for Mempolicy
diff --git a/Documentation/ABI/testing/sysfs-kernel-mm-mempolicy-weighted-interleave b/Documentation/ABI/testing/sysfs-kernel-mm-mempolicy-weighted-interleave
new file mode 100644
index 000000000000..649c0e9b895c
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-kernel-mm-mempolicy-weighted-interleave
@@ -0,0 +1,54 @@
+What: /sys/kernel/mm/mempolicy/weighted_interleave/
+Date: January 2024
+Contact: Linux memory management mailing list <linux-mm@kvack.org>
+Description: Configuration Interface for the Weighted Interleave policy
+
+What: /sys/kernel/mm/mempolicy/weighted_interleave/nodeN
+Date: January 2024
+Contact: Linux memory management mailing list <linux-mm@kvack.org>
+Description: Weight configuration interface for nodeN
+
+ The interleave weight for a memory node (N). These weights are
+ utilized by tasks which have set their mempolicy to
+ MPOL_WEIGHTED_INTERLEAVE.
+
+ These weights only affect new allocations, and changes at runtime
+ will not cause migrations on already allocated pages.
+
+ The minimum weight for a node is always 1.
+
+ Minimum weight: 1
+ Maximum weight: 255
+
+ Writing invalid values (i.e. any values not in [1,255],
+ empty string, ...) will return -EINVAL.
+
+ Changing the weight to a valid value will automatically
+ switch the system to manual mode as well.
+
+What: /sys/kernel/mm/mempolicy/weighted_interleave/auto
+Date: May 2025
+Contact: Linux memory management mailing list <linux-mm@kvack.org>
+Description: Auto-weighting configuration interface
+
+ Configuration mode for weighted interleave. 'true' indicates
+ that the system is in auto mode, and a 'false' indicates that
+ the system is in manual mode.
+
+ In auto mode, all node weights are re-calculated and overwritten
+ (visible via the nodeN interfaces) whenever new bandwidth data
+ is made available during either boot or hotplug events.
+
+ In manual mode, node weights can only be updated by the user.
+ Note that nodes that are onlined with previously set weights
+ will reuse those weights. If they were not previously set or
+ are onlined with missing bandwidth data, the weights will use
+ a default weight of 1.
+
+ Writing any true value string (e.g. Y or 1) will enable auto
+ mode, while writing any false value string (e.g. N or 0) will
+ enable manual mode. All other strings are ignored and will
+ return -EINVAL.
+
+ Writing a new weight to a node directly via the nodeN interface
+ will also automatically switch the system to manual mode.
diff --git a/Documentation/ABI/testing/sysfs-kernel-mm-numa b/Documentation/ABI/testing/sysfs-kernel-mm-numa
index 77e559d4ed80..90e375ff54cb 100644
--- a/Documentation/ABI/testing/sysfs-kernel-mm-numa
+++ b/Documentation/ABI/testing/sysfs-kernel-mm-numa
@@ -16,9 +16,13 @@ Description: Enable/disable demoting pages during reclaim
Allowing page migration during reclaim enables these
systems to migrate pages from fast tiers to slow tiers
when the fast tier is under pressure. This migration
- is performed before swap. It may move data to a NUMA
- node that does not fall into the cpuset of the
- allocating process which might be construed to violate
- the guarantees of cpusets. This should not be enabled
- on systems which need strict cpuset location
- guarantees.
+ is performed before swap if an eligible numa node is
+ present in cpuset.mems for the cgroup (or if cpuset v1
+ is being used). If cpusets.mems changes at runtime, it
+ may move data to a NUMA node that does not fall into the
+ cpuset of the new cpusets.mems, which might be construed
+ to violate the guarantees of cpusets. Shared memory,
+ such as libraries, owned by another cgroup may still be
+ demoted and result in memory use on a node not present
+ in cpusets.mem. This should not be enabled on systems
+ which need strict cpuset location guarantees.
diff --git a/Documentation/ABI/testing/sysfs-kernel-mm-transparent-hugepage b/Documentation/ABI/testing/sysfs-kernel-mm-transparent-hugepage
new file mode 100644
index 000000000000..7bfbb9cc2c11
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-kernel-mm-transparent-hugepage
@@ -0,0 +1,18 @@
+What: /sys/kernel/mm/transparent_hugepage/
+Date: April 2024
+Contact: Linux memory management mailing list <linux-mm@kvack.org>
+Description:
+ /sys/kernel/mm/transparent_hugepage/ contains a number of files and
+ subdirectories,
+
+ - defrag
+ - enabled
+ - hpage_pmd_size
+ - khugepaged
+ - shmem_enabled
+ - use_zero_page
+ - subdirectories of the form hugepages-<size>kB, where <size>
+ is the page size of the hugepages supported by the kernel/CPU
+ combination.
+
+ See Documentation/admin-guide/mm/transhuge.rst for details.
diff --git a/Documentation/ABI/testing/sysfs-kernel-rcu_stall_count b/Documentation/ABI/testing/sysfs-kernel-rcu_stall_count
new file mode 100644
index 000000000000..a4a97a7f4a4d
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-kernel-rcu_stall_count
@@ -0,0 +1,6 @@
+What: /sys/kernel/rcu_stall_count
+Date: May 2025
+KernelVersion: 6.16
+Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org>
+Description:
+ Shows how many times the system has detected an RCU stall since last boot.
diff --git a/Documentation/ABI/testing/sysfs-kernel-reboot b/Documentation/ABI/testing/sysfs-kernel-reboot
index 837330fb2511..52571fd5ddba 100644
--- a/Documentation/ABI/testing/sysfs-kernel-reboot
+++ b/Documentation/ABI/testing/sysfs-kernel-reboot
@@ -1,7 +1,7 @@
What: /sys/kernel/reboot
Date: November 2020
KernelVersion: 5.11
-Contact: Matteo Croce <mcroce@microsoft.com>
+Contact: Matteo Croce <teknoraver@meta.com>
Description: Interface to set the kernel reboot behavior, similarly to
what can be done via the reboot= cmdline option.
(see Documentation/admin-guide/kernel-parameters.txt)
@@ -9,24 +9,32 @@ Description: Interface to set the kernel reboot behavior, similarly to
What: /sys/kernel/reboot/mode
Date: November 2020
KernelVersion: 5.11
-Contact: Matteo Croce <mcroce@microsoft.com>
+Contact: Matteo Croce <teknoraver@meta.com>
Description: Reboot mode. Valid values are: cold warm hard soft gpio
What: /sys/kernel/reboot/type
Date: November 2020
KernelVersion: 5.11
-Contact: Matteo Croce <mcroce@microsoft.com>
+Contact: Matteo Croce <teknoraver@meta.com>
Description: Reboot type. Valid values are: bios acpi kbd triple efi pci
What: /sys/kernel/reboot/cpu
Date: November 2020
KernelVersion: 5.11
-Contact: Matteo Croce <mcroce@microsoft.com>
+Contact: Matteo Croce <teknoraver@meta.com>
Description: CPU number to use to reboot.
What: /sys/kernel/reboot/force
Date: November 2020
KernelVersion: 5.11
-Contact: Matteo Croce <mcroce@microsoft.com>
+Contact: Matteo Croce <teknoraver@meta.com>
Description: Don't wait for any other CPUs on reboot and
avoid anything that could hang.
+
+What: /sys/kernel/reboot/hw_protection
+Date: April 2025
+KernelVersion: 6.15
+Contact: Ahmad Fatoum <a.fatoum@pengutronix.de>
+Description: Hardware protection action taken on critical events like
+ overtemperature or imminent voltage loss.
+ Valid values are: reboot shutdown
diff --git a/Documentation/ABI/testing/sysfs-kernel-slab b/Documentation/ABI/testing/sysfs-kernel-slab
index cd5fb8fa3ddf..b26e4299f822 100644
--- a/Documentation/ABI/testing/sysfs-kernel-slab
+++ b/Documentation/ABI/testing/sysfs-kernel-slab
@@ -2,7 +2,7 @@ What: /sys/kernel/slab
Date: May 2007
KernelVersion: 2.6.22
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
- Christoph Lameter <cl@linux-foundation.org>
+ Christoph Lameter <cl@gentwo.org>
Description:
The /sys/kernel/slab directory contains a snapshot of the
internal state of the SLUB allocator for each cache. Certain
@@ -14,7 +14,7 @@ What: /sys/kernel/slab/<cache>/aliases
Date: May 2007
KernelVersion: 2.6.22
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
- Christoph Lameter <cl@linux-foundation.org>
+ Christoph Lameter <cl@gentwo.org>
Description:
The aliases file is read-only and specifies how many caches
have merged into this cache.
@@ -23,7 +23,7 @@ What: /sys/kernel/slab/<cache>/align
Date: May 2007
KernelVersion: 2.6.22
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
- Christoph Lameter <cl@linux-foundation.org>
+ Christoph Lameter <cl@gentwo.org>
Description:
The align file is read-only and specifies the cache's object
alignment in bytes.
@@ -32,18 +32,19 @@ What: /sys/kernel/slab/<cache>/alloc_calls
Date: May 2007
KernelVersion: 2.6.22
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
- Christoph Lameter <cl@linux-foundation.org>
+ Christoph Lameter <cl@gentwo.org>
Description:
The alloc_calls file is read-only and lists the kernel code
locations from which allocations for this cache were performed.
The alloc_calls file only contains information if debugging is
- enabled for that cache (see Documentation/mm/slub.rst).
+ enabled for that cache (see
+ Documentation/admin-guide/mm/slab.rst).
What: /sys/kernel/slab/<cache>/alloc_fastpath
Date: February 2008
KernelVersion: 2.6.25
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
- Christoph Lameter <cl@linux-foundation.org>
+ Christoph Lameter <cl@gentwo.org>
Description:
The alloc_fastpath file shows how many objects have been
allocated using the fast path. It can be written to clear the
@@ -54,7 +55,7 @@ What: /sys/kernel/slab/<cache>/alloc_from_partial
Date: February 2008
KernelVersion: 2.6.25
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
- Christoph Lameter <cl@linux-foundation.org>
+ Christoph Lameter <cl@gentwo.org>
Description:
The alloc_from_partial file shows how many times a cpu slab has
been full and it has been refilled by using a slab from the list
@@ -66,7 +67,7 @@ What: /sys/kernel/slab/<cache>/alloc_refill
Date: February 2008
KernelVersion: 2.6.25
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
- Christoph Lameter <cl@linux-foundation.org>
+ Christoph Lameter <cl@gentwo.org>
Description:
The alloc_refill file shows how many times the per-cpu freelist
was empty but there were objects available as the result of
@@ -77,7 +78,7 @@ What: /sys/kernel/slab/<cache>/alloc_slab
Date: February 2008
KernelVersion: 2.6.25
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
- Christoph Lameter <cl@linux-foundation.org>
+ Christoph Lameter <cl@gentwo.org>
Description:
The alloc_slab file is shows how many times a new slab had to
be allocated from the page allocator. It can be written to
@@ -88,7 +89,7 @@ What: /sys/kernel/slab/<cache>/alloc_slowpath
Date: February 2008
KernelVersion: 2.6.25
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
- Christoph Lameter <cl@linux-foundation.org>
+ Christoph Lameter <cl@gentwo.org>
Description:
The alloc_slowpath file shows how many objects have been
allocated using the slow path because of a refill or
@@ -100,7 +101,7 @@ What: /sys/kernel/slab/<cache>/cache_dma
Date: May 2007
KernelVersion: 2.6.22
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
- Christoph Lameter <cl@linux-foundation.org>
+ Christoph Lameter <cl@gentwo.org>
Description:
The cache_dma file is read-only and specifies whether objects
are from ZONE_DMA.
@@ -110,7 +111,7 @@ What: /sys/kernel/slab/<cache>/cpu_slabs
Date: May 2007
KernelVersion: 2.6.22
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
- Christoph Lameter <cl@linux-foundation.org>
+ Christoph Lameter <cl@gentwo.org>
Description:
The cpu_slabs file is read-only and displays how many cpu slabs
are active and their NUMA locality.
@@ -119,7 +120,7 @@ What: /sys/kernel/slab/<cache>/cpuslab_flush
Date: April 2009
KernelVersion: 2.6.31
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
- Christoph Lameter <cl@linux-foundation.org>
+ Christoph Lameter <cl@gentwo.org>
Description:
The file cpuslab_flush shows how many times a cache's cpu slabs
have been flushed as the result of destroying or shrinking a
@@ -132,7 +133,7 @@ What: /sys/kernel/slab/<cache>/ctor
Date: May 2007
KernelVersion: 2.6.22
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
- Christoph Lameter <cl@linux-foundation.org>
+ Christoph Lameter <cl@gentwo.org>
Description:
The ctor file is read-only and specifies the cache's object
constructor function, which is invoked for each object when a
@@ -142,7 +143,7 @@ What: /sys/kernel/slab/<cache>/deactivate_empty
Date: February 2008
KernelVersion: 2.6.25
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
- Christoph Lameter <cl@linux-foundation.org>
+ Christoph Lameter <cl@gentwo.org>
Description:
The deactivate_empty file shows how many times an empty cpu slab
was deactivated. It can be written to clear the current count.
@@ -152,7 +153,7 @@ What: /sys/kernel/slab/<cache>/deactivate_full
Date: February 2008
KernelVersion: 2.6.25
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
- Christoph Lameter <cl@linux-foundation.org>
+ Christoph Lameter <cl@gentwo.org>
Description:
The deactivate_full file shows how many times a full cpu slab
was deactivated. It can be written to clear the current count.
@@ -162,7 +163,7 @@ What: /sys/kernel/slab/<cache>/deactivate_remote_frees
Date: February 2008
KernelVersion: 2.6.25
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
- Christoph Lameter <cl@linux-foundation.org>
+ Christoph Lameter <cl@gentwo.org>
Description:
The deactivate_remote_frees file shows how many times a cpu slab
has been deactivated and contained free objects that were freed
@@ -173,7 +174,7 @@ What: /sys/kernel/slab/<cache>/deactivate_to_head
Date: February 2008
KernelVersion: 2.6.25
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
- Christoph Lameter <cl@linux-foundation.org>
+ Christoph Lameter <cl@gentwo.org>
Description:
The deactivate_to_head file shows how many times a partial cpu
slab was deactivated and added to the head of its node's partial
@@ -184,7 +185,7 @@ What: /sys/kernel/slab/<cache>/deactivate_to_tail
Date: February 2008
KernelVersion: 2.6.25
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
- Christoph Lameter <cl@linux-foundation.org>
+ Christoph Lameter <cl@gentwo.org>
Description:
The deactivate_to_tail file shows how many times a partial cpu
slab was deactivated and added to the tail of its node's partial
@@ -195,7 +196,7 @@ What: /sys/kernel/slab/<cache>/destroy_by_rcu
Date: May 2007
KernelVersion: 2.6.22
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
- Christoph Lameter <cl@linux-foundation.org>
+ Christoph Lameter <cl@gentwo.org>
Description:
The destroy_by_rcu file is read-only and specifies whether
slabs (not objects) are freed by rcu.
@@ -204,7 +205,7 @@ What: /sys/kernel/slab/<cache>/free_add_partial
Date: February 2008
KernelVersion: 2.6.25
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
- Christoph Lameter <cl@linux-foundation.org>
+ Christoph Lameter <cl@gentwo.org>
Description:
The free_add_partial file shows how many times an object has
been freed in a full slab so that it had to added to its node's
@@ -215,17 +216,17 @@ What: /sys/kernel/slab/<cache>/free_calls
Date: May 2007
KernelVersion: 2.6.22
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
- Christoph Lameter <cl@linux-foundation.org>
+ Christoph Lameter <cl@gentwo.org>
Description:
The free_calls file is read-only and lists the locations of
object frees if slab debugging is enabled (see
- Documentation/mm/slub.rst).
+ Documentation/admin-guide/mm/slab.rst).
What: /sys/kernel/slab/<cache>/free_fastpath
Date: February 2008
KernelVersion: 2.6.25
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
- Christoph Lameter <cl@linux-foundation.org>
+ Christoph Lameter <cl@gentwo.org>
Description:
The free_fastpath file shows how many objects have been freed
using the fast path because it was an object from the cpu slab.
@@ -236,7 +237,7 @@ What: /sys/kernel/slab/<cache>/free_frozen
Date: February 2008
KernelVersion: 2.6.25
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
- Christoph Lameter <cl@linux-foundation.org>
+ Christoph Lameter <cl@gentwo.org>
Description:
The free_frozen file shows how many objects have been freed to
a frozen slab (i.e. a remote cpu slab). It can be written to
@@ -247,7 +248,7 @@ What: /sys/kernel/slab/<cache>/free_remove_partial
Date: February 2008
KernelVersion: 2.6.25
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
- Christoph Lameter <cl@linux-foundation.org>
+ Christoph Lameter <cl@gentwo.org>
Description:
The free_remove_partial file shows how many times an object has
been freed to a now-empty slab so that it had to be removed from
@@ -259,7 +260,7 @@ What: /sys/kernel/slab/<cache>/free_slab
Date: February 2008
KernelVersion: 2.6.25
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
- Christoph Lameter <cl@linux-foundation.org>
+ Christoph Lameter <cl@gentwo.org>
Description:
The free_slab file shows how many times an empty slab has been
freed back to the page allocator. It can be written to clear
@@ -270,7 +271,7 @@ What: /sys/kernel/slab/<cache>/free_slowpath
Date: February 2008
KernelVersion: 2.6.25
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
- Christoph Lameter <cl@linux-foundation.org>
+ Christoph Lameter <cl@gentwo.org>
Description:
The free_slowpath file shows how many objects have been freed
using the slow path (i.e. to a full or partial slab). It can
@@ -281,7 +282,7 @@ What: /sys/kernel/slab/<cache>/hwcache_align
Date: May 2007
KernelVersion: 2.6.22
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
- Christoph Lameter <cl@linux-foundation.org>
+ Christoph Lameter <cl@gentwo.org>
Description:
The hwcache_align file is read-only and specifies whether
objects are aligned on cachelines.
@@ -301,7 +302,7 @@ What: /sys/kernel/slab/<cache>/object_size
Date: May 2007
KernelVersion: 2.6.22
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
- Christoph Lameter <cl@linux-foundation.org>
+ Christoph Lameter <cl@gentwo.org>
Description:
The object_size file is read-only and specifies the cache's
object size.
@@ -310,7 +311,7 @@ What: /sys/kernel/slab/<cache>/objects
Date: May 2007
KernelVersion: 2.6.22
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
- Christoph Lameter <cl@linux-foundation.org>
+ Christoph Lameter <cl@gentwo.org>
Description:
The objects file is read-only and displays how many objects are
active and from which nodes they are from.
@@ -319,7 +320,7 @@ What: /sys/kernel/slab/<cache>/objects_partial
Date: April 2008
KernelVersion: 2.6.26
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
- Christoph Lameter <cl@linux-foundation.org>
+ Christoph Lameter <cl@gentwo.org>
Description:
The objects_partial file is read-only and displays how many
objects are on partial slabs and from which nodes they are
@@ -329,7 +330,7 @@ What: /sys/kernel/slab/<cache>/objs_per_slab
Date: May 2007
KernelVersion: 2.6.22
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
- Christoph Lameter <cl@linux-foundation.org>
+ Christoph Lameter <cl@gentwo.org>
Description:
The file objs_per_slab is read-only and specifies how many
objects may be allocated from a single slab of the order
@@ -339,7 +340,7 @@ What: /sys/kernel/slab/<cache>/order
Date: May 2007
KernelVersion: 2.6.22
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
- Christoph Lameter <cl@linux-foundation.org>
+ Christoph Lameter <cl@gentwo.org>
Description:
The order file specifies the page order at which new slabs are
allocated. It is writable and can be changed to increase the
@@ -356,7 +357,7 @@ What: /sys/kernel/slab/<cache>/order_fallback
Date: April 2008
KernelVersion: 2.6.26
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
- Christoph Lameter <cl@linux-foundation.org>
+ Christoph Lameter <cl@gentwo.org>
Description:
The order_fallback file shows how many times an allocation of a
new slab has not been possible at the cache's order and instead
@@ -369,7 +370,7 @@ What: /sys/kernel/slab/<cache>/partial
Date: May 2007
KernelVersion: 2.6.22
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
- Christoph Lameter <cl@linux-foundation.org>
+ Christoph Lameter <cl@gentwo.org>
Description:
The partial file is read-only and displays how long many
partial slabs there are and how long each node's list is.
@@ -378,7 +379,7 @@ What: /sys/kernel/slab/<cache>/poison
Date: May 2007
KernelVersion: 2.6.22
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
- Christoph Lameter <cl@linux-foundation.org>
+ Christoph Lameter <cl@gentwo.org>
Description:
The poison file specifies whether objects should be poisoned
when a new slab is allocated.
@@ -387,7 +388,7 @@ What: /sys/kernel/slab/<cache>/reclaim_account
Date: May 2007
KernelVersion: 2.6.22
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
- Christoph Lameter <cl@linux-foundation.org>
+ Christoph Lameter <cl@gentwo.org>
Description:
The reclaim_account file specifies whether the cache's objects
are reclaimable (and grouped by their mobility).
@@ -396,7 +397,7 @@ What: /sys/kernel/slab/<cache>/red_zone
Date: May 2007
KernelVersion: 2.6.22
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
- Christoph Lameter <cl@linux-foundation.org>
+ Christoph Lameter <cl@gentwo.org>
Description:
The red_zone file specifies whether the cache's objects are red
zoned.
@@ -405,7 +406,7 @@ What: /sys/kernel/slab/<cache>/remote_node_defrag_ratio
Date: January 2008
KernelVersion: 2.6.25
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
- Christoph Lameter <cl@linux-foundation.org>
+ Christoph Lameter <cl@gentwo.org>
Description:
The file remote_node_defrag_ratio specifies the percentage of
times SLUB will attempt to refill the cpu slab with a partial
@@ -419,7 +420,7 @@ What: /sys/kernel/slab/<cache>/sanity_checks
Date: May 2007
KernelVersion: 2.6.22
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
- Christoph Lameter <cl@linux-foundation.org>
+ Christoph Lameter <cl@gentwo.org>
Description:
The sanity_checks file specifies whether expensive checks
should be performed on free and, at minimum, enables double free
@@ -430,7 +431,7 @@ What: /sys/kernel/slab/<cache>/shrink
Date: May 2007
KernelVersion: 2.6.22
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
- Christoph Lameter <cl@linux-foundation.org>
+ Christoph Lameter <cl@gentwo.org>
Description:
The shrink file is used to reclaim unused slab cache
memory from a cache. Empty per-cpu or partial slabs
@@ -446,7 +447,7 @@ What: /sys/kernel/slab/<cache>/slab_size
Date: May 2007
KernelVersion: 2.6.22
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
- Christoph Lameter <cl@linux-foundation.org>
+ Christoph Lameter <cl@gentwo.org>
Description:
The slab_size file is read-only and specifies the object size
with metadata (debugging information and alignment) in bytes.
@@ -455,7 +456,7 @@ What: /sys/kernel/slab/<cache>/slabs
Date: May 2007
KernelVersion: 2.6.22
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
- Christoph Lameter <cl@linux-foundation.org>
+ Christoph Lameter <cl@gentwo.org>
Description:
The slabs file is read-only and displays how long many slabs
there are (both cpu and partial) and from which nodes they are
@@ -465,7 +466,7 @@ What: /sys/kernel/slab/<cache>/store_user
Date: May 2007
KernelVersion: 2.6.22
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
- Christoph Lameter <cl@linux-foundation.org>
+ Christoph Lameter <cl@gentwo.org>
Description:
The store_user file specifies whether the location of
allocation or free should be tracked for a cache.
@@ -474,7 +475,7 @@ What: /sys/kernel/slab/<cache>/total_objects
Date: April 2008
KernelVersion: 2.6.26
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
- Christoph Lameter <cl@linux-foundation.org>
+ Christoph Lameter <cl@gentwo.org>
Description:
The total_objects file is read-only and displays how many total
objects a cache has and from which nodes they are from.
@@ -483,7 +484,7 @@ What: /sys/kernel/slab/<cache>/trace
Date: May 2007
KernelVersion: 2.6.22
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
- Christoph Lameter <cl@linux-foundation.org>
+ Christoph Lameter <cl@gentwo.org>
Description:
The trace file specifies whether object allocations and frees
should be traced.
@@ -492,7 +493,7 @@ What: /sys/kernel/slab/<cache>/validate
Date: May 2007
KernelVersion: 2.6.22
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
- Christoph Lameter <cl@linux-foundation.org>
+ Christoph Lameter <cl@gentwo.org>
Description:
Writing to the validate file causes SLUB to traverse all of its
cache's objects and check the validity of metadata.
@@ -506,14 +507,14 @@ Description:
What: /sys/kernel/slab/<cache>/slabs_cpu_partial
Date: Aug 2011
-Contact: Christoph Lameter <cl@linux.com>
+Contact: Christoph Lameter <cl@gentwo.org>
Description:
This read-only file shows the number of partialli allocated
frozen slabs.
What: /sys/kernel/slab/<cache>/cpu_partial
Date: Aug 2011
-Contact: Christoph Lameter <cl@linux.com>
+Contact: Christoph Lameter <cl@gentwo.org>
Description:
This read-only file shows the number of per cpu partial
pages to keep around.
diff --git a/Documentation/ABI/testing/sysfs-kernel-softlockup_count b/Documentation/ABI/testing/sysfs-kernel-softlockup_count
new file mode 100644
index 000000000000..337ff5531b5f
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-kernel-softlockup_count
@@ -0,0 +1,7 @@
+What: /sys/kernel/softlockup_count
+Date: May 2025
+KernelVersion: 6.16
+Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org>
+Description:
+ Shows how many times the system has detected a soft lockup since last boot.
+ Available only if CONFIG_SOFTLOCKUP_DETECTOR is enabled.
diff --git a/Documentation/ABI/testing/sysfs-memory-page-offline b/Documentation/ABI/testing/sysfs-memory-page-offline
index e14703f12fdf..00f4e35f916f 100644
--- a/Documentation/ABI/testing/sysfs-memory-page-offline
+++ b/Documentation/ABI/testing/sysfs-memory-page-offline
@@ -10,7 +10,7 @@ Description:
dropping it if possible. The kernel will then be placed
on the bad page list and never be reused.
- The offlining is done in kernel specific granuality.
+ The offlining is done in kernel specific granularity.
Normally it's the base page size of the kernel, but
this might change.
@@ -35,7 +35,7 @@ Description:
to access this page assuming it's poisoned by the
hardware.
- The offlining is done in kernel specific granuality.
+ The offlining is done in kernel specific granularity.
Normally it's the base page size of the kernel, but
this might change.
diff --git a/Documentation/ABI/testing/sysfs-module b/Documentation/ABI/testing/sysfs-module
index 08886367d047..6bc9af6229f0 100644
--- a/Documentation/ABI/testing/sysfs-module
+++ b/Documentation/ABI/testing/sysfs-module
@@ -59,4 +59,17 @@ Description: Module taint flags:
F force-loaded module
C staging driver module
E unsigned module
+ K livepatch module
+ N in-kernel test module
== =====================
+
+What: /sys/module/grant_table/parameters/free_per_iteration
+Date: July 2023
+KernelVersion: 6.5 but backported to all supported stable branches
+Contact: Xen developer discussion <xen-devel@lists.xenproject.org>
+Description: Read and write number of grant entries to attempt to free per iteration.
+
+ Note: Future versions of Xen and Linux may provide a better
+ interface for controlling the rate of deferred grant reclaim
+ or may not need it at all.
+Users: Qubes OS (https://www.qubes-os.org)
diff --git a/Documentation/ABI/testing/sysfs-nvmem-cells b/Documentation/ABI/testing/sysfs-nvmem-cells
new file mode 100644
index 000000000000..c7c9444f92a8
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-nvmem-cells
@@ -0,0 +1,21 @@
+What: /sys/bus/nvmem/devices/.../cells/<cell-name>
+Date: May 2023
+KernelVersion: 6.5
+Contact: Miquel Raynal <miquel.raynal@bootlin.com>
+Description:
+ The "cells" folder contains one file per cell exposed by the
+ NVMEM device. The name of the file is: "<name>@<byte>,<bit>",
+ with <name> being the cell name and <where> its location in
+ the NVMEM device, in hexadecimal bytes and bits (without the
+ '0x' prefix, to mimic device tree node names). The length of
+ the file is the size of the cell (when known). The content of
+ the file is the binary content of the cell (may sometimes be
+ ASCII, likely without trailing character).
+ Note: This file is only present if CONFIG_NVMEM_SYSFS
+ is enabled.
+
+ Example::
+
+ hexdump -C /sys/bus/nvmem/devices/1-00563/cells/product-name@d,0
+ 00000000 54 4e 34 38 4d 2d 50 2d 44 4e |TN48M-P-DN|
+ 0000000a
diff --git a/Documentation/ABI/testing/sysfs-ocfs2 b/Documentation/ABI/testing/sysfs-ocfs2
index b7cc516a8a8a..494d7c1ac710 100644
--- a/Documentation/ABI/testing/sysfs-ocfs2
+++ b/Documentation/ABI/testing/sysfs-ocfs2
@@ -1,13 +1,13 @@
What: /sys/fs/ocfs2/
Date: April 2008
-Contact: ocfs2-devel@oss.oracle.com
+Contact: ocfs2-devel@lists.linux.dev
Description:
The /sys/fs/ocfs2 directory contains knobs used by the
ocfs2-tools to interact with the filesystem.
What: /sys/fs/ocfs2/max_locking_protocol
Date: April 2008
-Contact: ocfs2-devel@oss.oracle.com
+Contact: ocfs2-devel@lists.linux.dev
Description:
The /sys/fs/ocfs2/max_locking_protocol file displays version
of ocfs2 locking supported by the filesystem. This version
@@ -28,7 +28,7 @@ Description:
What: /sys/fs/ocfs2/loaded_cluster_plugins
Date: April 2008
-Contact: ocfs2-devel@oss.oracle.com
+Contact: ocfs2-devel@lists.linux.dev
Description:
The /sys/fs/ocfs2/loaded_cluster_plugins file describes
the available plugins to support ocfs2 cluster operation.
@@ -48,7 +48,7 @@ Description:
What: /sys/fs/ocfs2/active_cluster_plugin
Date: April 2008
-Contact: ocfs2-devel@oss.oracle.com
+Contact: ocfs2-devel@lists.linux.dev
Description:
The /sys/fs/ocfs2/active_cluster_plugin displays which
cluster plugin is currently in use by the filesystem.
@@ -65,7 +65,7 @@ Description:
What: /sys/fs/ocfs2/cluster_stack
Date: April 2008
-Contact: ocfs2-devel@oss.oracle.com
+Contact: ocfs2-devel@lists.linux.dev
Description:
The /sys/fs/ocfs2/cluster_stack file contains the name
of current ocfs2 cluster stack. This value is set by
@@ -86,4 +86,4 @@ Description:
stack return an error.
Users:
- ocfs2-tools <ocfs2-tools-devel@oss.oracle.com>
+ ocfs2-tools <ocfs2-tools-devel@lists.linux.dev>
diff --git a/Documentation/ABI/testing/sysfs-platform-alienware-wmi b/Documentation/ABI/testing/sysfs-platform-alienware-wmi
new file mode 100644
index 000000000000..4877b3745f4e
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-platform-alienware-wmi
@@ -0,0 +1,14 @@
+What: /sys/class/hwmon/hwmonX/fanY_boost
+Date: March 2025
+KernelVersion: 6.15
+Contact: Kurt Borja <kuurtb@gmail.com>
+Description:
+ This file exposes fan boost control for Dell gaming laptops with
+ the AWCC WMI interface.
+
+ See Documentation/admin-guide/laptops/alienware-wmi.rst for
+ details.
+
+ Integer value in the range 0 to 255
+
+ RW
diff --git a/Documentation/ABI/testing/sysfs-platform-asus-wmi b/Documentation/ABI/testing/sysfs-platform-asus-wmi
index a77a004a1baa..89acb6638df8 100644
--- a/Documentation/ABI/testing/sysfs-platform-asus-wmi
+++ b/Documentation/ABI/testing/sysfs-platform-asus-wmi
@@ -63,6 +63,7 @@ Date: Aug 2022
KernelVersion: 6.1
Contact: "Luke Jones" <luke@ljones.dev>
Description:
+ DEPRECATED, WILL BE REMOVED SOON: please use asus-armoury
Switch the GPU hardware MUX mode. Laptops with this feature can
can be toggled to boot with only the dGPU (discrete mode) or in
standard Optimus/Hybrid mode. On switch a reboot is required:
@@ -75,6 +76,7 @@ Date: Aug 2022
KernelVersion: 5.17
Contact: "Luke Jones" <luke@ljones.dev>
Description:
+ DEPRECATED, WILL BE REMOVED SOON: please use asus-armoury
Disable discrete GPU:
* 0 - Enable dGPU,
* 1 - Disable dGPU
@@ -84,6 +86,7 @@ Date: Aug 2022
KernelVersion: 5.17
Contact: "Luke Jones" <luke@ljones.dev>
Description:
+ DEPRECATED, WILL BE REMOVED SOON: please use asus-armoury
Enable the external GPU paired with ROG X-Flow laptops.
Toggling this setting will also trigger ACPI to disable the dGPU:
@@ -95,6 +98,134 @@ Date: Aug 2022
KernelVersion: 5.17
Contact: "Luke Jones" <luke@ljones.dev>
Description:
+ DEPRECATED, WILL BE REMOVED SOON: please use asus-armoury
Enable an LCD response-time boost to reduce or remove ghosting:
* 0 - Disable,
* 1 - Enable
+
+What: /sys/devices/platform/<platform>/charge_mode
+Date: Jun 2023
+KernelVersion: 6.5
+Contact: "Luke Jones" <luke@ljones.dev>
+Description:
+ DEPRECATED, WILL BE REMOVED SOON: please use asus-armoury
+ Get the current charging mode being used:
+ * 1 - Barrel connected charger,
+ * 2 - USB-C charging
+ * 3 - Both connected, barrel used for charging
+
+What: /sys/devices/platform/<platform>/egpu_connected
+Date: Jun 2023
+KernelVersion: 6.5
+Contact: "Luke Jones" <luke@ljones.dev>
+Description:
+ DEPRECATED, WILL BE REMOVED SOON: please use asus-armoury
+ Show if the egpu (XG Mobile) is correctly connected:
+ * 0 - False,
+ * 1 - True
+
+What: /sys/devices/platform/<platform>/mini_led_mode
+Date: Jun 2023
+KernelVersion: 6.5
+Contact: "Luke Jones" <luke@ljones.dev>
+Description:
+ DEPRECATED, WILL BE REMOVED SOON: please use asus-armoury
+ Change the mini-LED mode:
+ * 0 - Single-zone,
+ * 1 - Multi-zone
+ * 2 - Multi-zone strong (available on newer generation mini-led)
+
+What: /sys/devices/platform/<platform>/available_mini_led_mode
+Date: Apr 2024
+KernelVersion: 6.10
+Contact: "Luke Jones" <luke@ljones.dev>
+Description:
+ DEPRECATED, WILL BE REMOVED SOON: please use asus-armoury
+ List the available mini-led modes.
+
+What: /sys/devices/platform/<platform>/ppt_pl1_spl
+Date: Jun 2023
+KernelVersion: 6.5
+Contact: "Luke Jones" <luke@ljones.dev>
+Description:
+ DEPRECATED, WILL BE REMOVED SOON: please use asus-armoury
+ Set the Package Power Target total of CPU: PL1 on Intel, SPL on AMD.
+ Shown on Intel+Nvidia or AMD+Nvidia based systems:
+
+ * min=5, max=250
+
+What: /sys/devices/platform/<platform>/ppt_pl2_sppt
+Date: Jun 2023
+KernelVersion: 6.5
+Contact: "Luke Jones" <luke@ljones.dev>
+Description:
+ DEPRECATED, WILL BE REMOVED SOON: please use asus-armoury
+ Set the Slow Package Power Tracking Limit of CPU: PL2 on Intel, SPPT,
+ on AMD. Shown on Intel+Nvidia or AMD+Nvidia based systems:
+
+ * min=5, max=250
+
+What: /sys/devices/platform/<platform>/ppt_fppt
+Date: Jun 2023
+KernelVersion: 6.5
+Contact: "Luke Jones" <luke@ljones.dev>
+Description:
+ DEPRECATED, WILL BE REMOVED SOON: please use asus-armoury
+ Set the Fast Package Power Tracking Limit of CPU. AMD+Nvidia only:
+ * min=5, max=250
+
+What: /sys/devices/platform/<platform>/ppt_apu_sppt
+Date: Jun 2023
+KernelVersion: 6.5
+Contact: "Luke Jones" <luke@ljones.dev>
+Description:
+ DEPRECATED, WILL BE REMOVED SOON: please use asus-armoury
+ Set the APU SPPT limit. Shown on full AMD systems only:
+ * min=5, max=130
+
+What: /sys/devices/platform/<platform>/ppt_platform_sppt
+Date: Jun 2023
+KernelVersion: 6.5
+Contact: "Luke Jones" <luke@ljones.dev>
+Description:
+ DEPRECATED, WILL BE REMOVED SOON: please use asus-armoury
+ Set the platform SPPT limit. Shown on full AMD systems only:
+ * min=5, max=130
+
+What: /sys/devices/platform/<platform>/nv_dynamic_boost
+Date: Jun 2023
+KernelVersion: 6.5
+Contact: "Luke Jones" <luke@ljones.dev>
+Description:
+ DEPRECATED, WILL BE REMOVED SOON: please use asus-armoury
+ Set the dynamic boost limit of the Nvidia dGPU:
+ * min=5, max=25
+
+What: /sys/devices/platform/<platform>/nv_temp_target
+Date: Jun 2023
+KernelVersion: 6.5
+Contact: "Luke Jones" <luke@ljones.dev>
+Description:
+ DEPRECATED, WILL BE REMOVED SOON: please use asus-armoury
+ Set the target temperature limit of the Nvidia dGPU:
+ * min=75, max=87
+
+What: /sys/devices/platform/<platform>/boot_sound
+Date: Apr 2024
+KernelVersion: 6.10
+Contact: "Luke Jones" <luke@ljones.dev>
+Description:
+ DEPRECATED, WILL BE REMOVED SOON: please use asus-armoury
+ Set if the BIOS POST sound is played on boot.
+ * 0 - False,
+ * 1 - True
+
+What: /sys/devices/platform/<platform>/mcu_powersave
+Date: Apr 2024
+KernelVersion: 6.10
+Contact: "Luke Jones" <luke@ljones.dev>
+Description:
+ DEPRECATED, WILL BE REMOVED SOON: please use asus-armoury
+ Set if the MCU can go in to low-power mode on system sleep
+ * 0 - False,
+ * 1 - True
diff --git a/Documentation/ABI/testing/sysfs-platform-ayaneo-ec b/Documentation/ABI/testing/sysfs-platform-ayaneo-ec
new file mode 100644
index 000000000000..4cffbf5fc7ca
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-platform-ayaneo-ec
@@ -0,0 +1,19 @@
+What: /sys/devices/platform/ayaneo-ec/controller_power
+Date: Nov 2025
+KernelVersion: 6.19
+Contact: "Antheas Kapenekakis" <lkml@antheas.dev>
+Description:
+ Current controller power state. Allows turning on and off
+ the controller power (e.g. for power savings). Write 1 to
+ turn on, 0 to turn off. File is readable and writable.
+
+What: /sys/devices/platform/ayaneo-ec/controller_modules
+Date: Nov 2025
+KernelVersion: 6.19
+Contact: "Antheas Kapenekakis" <lkml@antheas.dev>
+Description:
+ Shows which controller modules are currently connected to
+ the device. Possible values are "left", "right" and "both".
+ File is read-only. The Windows software for this device
+ will only set controller power to 1 if both module sides
+ are connected (i.e. this file returns "both").
diff --git a/Documentation/ABI/testing/sysfs-platform-dell-laptop b/Documentation/ABI/testing/sysfs-platform-dell-laptop
index 82bcfe9df66e..701529653283 100644
--- a/Documentation/ABI/testing/sysfs-platform-dell-laptop
+++ b/Documentation/ABI/testing/sysfs-platform-dell-laptop
@@ -15,7 +15,7 @@ KernelVersion: 3.19
Contact: Gabriele Mazzotta <gabriele.mzt@gmail.com>,
Pali Rohár <pali@kernel.org>
Description:
- This file allows to specifiy the on/off threshold value,
+ This file allows to specify the on/off threshold value,
as reported by the ambient light sensor.
What: /sys/class/leds/dell::kbd_backlight/start_triggers
diff --git a/Documentation/ABI/testing/sysfs-platform-dell-privacy-wmi b/Documentation/ABI/testing/sysfs-platform-dell-privacy-wmi
index 1f1f274a6979..b4da7b2ea0ca 100644
--- a/Documentation/ABI/testing/sysfs-platform-dell-privacy-wmi
+++ b/Documentation/ABI/testing/sysfs-platform-dell-privacy-wmi
@@ -1,4 +1,4 @@
-What: /sys/bus/wmi/devices/6932965F-1671-4CEB-B988-D3AB0A901919/dell_privacy_supported_type
+What: /sys/bus/wmi/devices/6932965F-1671-4CEB-B988-D3AB0A901919[-X]/dell_privacy_supported_type
Date: Apr 2021
KernelVersion: 5.13
Contact: "<perry.yuan@dell.com>"
@@ -29,12 +29,12 @@ Description:
For example to check which privacy devices are supported::
- # cat /sys/bus/wmi/drivers/dell-privacy/6932965F-1671-4CEB-B988-D3AB0A901919/dell_privacy_supported_type
+ # cat /sys/bus/wmi/drivers/dell-privacy/6932965F-1671-4CEB-B988-D3AB0A901919*/dell_privacy_supported_type
[Microphone Mute] [supported]
[Camera Shutter] [supported]
[ePrivacy Screen] [unsupported]
-What: /sys/bus/wmi/devices/6932965F-1671-4CEB-B988-D3AB0A901919/dell_privacy_current_state
+What: /sys/bus/wmi/devices/6932965F-1671-4CEB-B988-D3AB0A901919[-X]/dell_privacy_current_state
Date: Apr 2021
KernelVersion: 5.13
Contact: "<perry.yuan@dell.com>"
@@ -66,6 +66,6 @@ Description:
For example to check all supported current privacy device states::
- # cat /sys/bus/wmi/drivers/dell-privacy/6932965F-1671-4CEB-B988-D3AB0A901919/dell_privacy_current_state
+ # cat /sys/bus/wmi/drivers/dell-privacy/6932965F-1671-4CEB-B988-D3AB0A901919*/dell_privacy_current_state
[Microphone] [unmuted]
[Camera Shutter] [unmuted]
diff --git a/Documentation/ABI/testing/sysfs-platform-dell-wmi-ddv b/Documentation/ABI/testing/sysfs-platform-dell-wmi-ddv
index 1d97ad615c66..a9d39d9e8865 100644
--- a/Documentation/ABI/testing/sysfs-platform-dell-wmi-ddv
+++ b/Documentation/ABI/testing/sysfs-platform-dell-wmi-ddv
@@ -3,5 +3,7 @@ Date: September 2022
KernelVersion: 6.1
Contact: Armin Wolf <W_Armin@gmx.de>
Description:
- Reports the Dell ePPID (electronic Dell Piece Part Identification)
+ Reports the Dell ePPID (electronic Piece Part Identification)
of the ACPI battery.
+
+ See Documentation/wmi/devices/dell-wmi-ddv.rst for details.
diff --git a/Documentation/ABI/testing/sysfs-platform-dfl-fme b/Documentation/ABI/testing/sysfs-platform-dfl-fme
index d6ab34e81b9b..2d5b78d2cf51 100644
--- a/Documentation/ABI/testing/sysfs-platform-dfl-fme
+++ b/Documentation/ABI/testing/sysfs-platform-dfl-fme
@@ -90,7 +90,7 @@ KernelVersion: 5.4
Contact: Wu Hao <hao.wu@intel.com>
Description: Read-Write. Read this file to get errors detected on FME.
Write this file to clear errors logged in fme_errors. Write
- fials with -EINVAL if input parsing fails or input error code
+ fails with -EINVAL if input parsing fails or input error code
doesn't match.
What: /sys/bus/platform/devices/dfl-fme.0/errors/first_error
diff --git a/Documentation/ABI/testing/sysfs-platform-hidma b/Documentation/ABI/testing/sysfs-platform-hidma
index fca40a54df59..a80aeda85ef6 100644
--- a/Documentation/ABI/testing/sysfs-platform-hidma
+++ b/Documentation/ABI/testing/sysfs-platform-hidma
@@ -2,7 +2,7 @@ What: /sys/devices/platform/hidma-*/chid
/sys/devices/platform/QCOM8061:*/chid
Date: Dec 2015
KernelVersion: 4.4
-Contact: "Sinan Kaya <okaya@codeaurora.org>"
+Contact: "Sinan Kaya <okaya@kernel.org>"
Description:
Contains the ID of the channel within the HIDMA instance.
It is used to associate a given HIDMA channel with the
diff --git a/Documentation/ABI/testing/sysfs-platform-hidma-mgmt b/Documentation/ABI/testing/sysfs-platform-hidma-mgmt
index 3b6c5c9eabdc..0373745b4e18 100644
--- a/Documentation/ABI/testing/sysfs-platform-hidma-mgmt
+++ b/Documentation/ABI/testing/sysfs-platform-hidma-mgmt
@@ -2,7 +2,7 @@ What: /sys/devices/platform/hidma-mgmt*/chanops/chan*/priority
/sys/devices/platform/QCOM8060:*/chanops/chan*/priority
Date: Nov 2015
KernelVersion: 4.4
-Contact: "Sinan Kaya <okaya@codeaurora.org>"
+Contact: "Sinan Kaya <okaya@kernel.org>"
Description:
Contains either 0 or 1 and indicates if the DMA channel is a
low priority (0) or high priority (1) channel.
@@ -11,7 +11,7 @@ What: /sys/devices/platform/hidma-mgmt*/chanops/chan*/weight
/sys/devices/platform/QCOM8060:*/chanops/chan*/weight
Date: Nov 2015
KernelVersion: 4.4
-Contact: "Sinan Kaya <okaya@codeaurora.org>"
+Contact: "Sinan Kaya <okaya@kernel.org>"
Description:
Contains 0..15 and indicates the weight of the channel among
equal priority channels during round robin scheduling.
@@ -20,7 +20,7 @@ What: /sys/devices/platform/hidma-mgmt*/chreset_timeout_cycles
/sys/devices/platform/QCOM8060:*/chreset_timeout_cycles
Date: Nov 2015
KernelVersion: 4.4
-Contact: "Sinan Kaya <okaya@codeaurora.org>"
+Contact: "Sinan Kaya <okaya@kernel.org>"
Description:
Contains the platform specific cycle value to wait after a
reset command is issued. If the value is chosen too short,
@@ -32,7 +32,7 @@ What: /sys/devices/platform/hidma-mgmt*/dma_channels
/sys/devices/platform/QCOM8060:*/dma_channels
Date: Nov 2015
KernelVersion: 4.4
-Contact: "Sinan Kaya <okaya@codeaurora.org>"
+Contact: "Sinan Kaya <okaya@kernel.org>"
Description:
Contains the number of dma channels supported by one instance
of HIDMA hardware. The value may change from chip to chip.
@@ -41,7 +41,7 @@ What: /sys/devices/platform/hidma-mgmt*/hw_version_major
/sys/devices/platform/QCOM8060:*/hw_version_major
Date: Nov 2015
KernelVersion: 4.4
-Contact: "Sinan Kaya <okaya@codeaurora.org>"
+Contact: "Sinan Kaya <okaya@kernel.org>"
Description:
Version number major for the hardware.
@@ -49,7 +49,7 @@ What: /sys/devices/platform/hidma-mgmt*/hw_version_minor
/sys/devices/platform/QCOM8060:*/hw_version_minor
Date: Nov 2015
KernelVersion: 4.4
-Contact: "Sinan Kaya <okaya@codeaurora.org>"
+Contact: "Sinan Kaya <okaya@kernel.org>"
Description:
Version number minor for the hardware.
@@ -57,7 +57,7 @@ What: /sys/devices/platform/hidma-mgmt*/max_rd_xactions
/sys/devices/platform/QCOM8060:*/max_rd_xactions
Date: Nov 2015
KernelVersion: 4.4
-Contact: "Sinan Kaya <okaya@codeaurora.org>"
+Contact: "Sinan Kaya <okaya@kernel.org>"
Description:
Contains a value between 0 and 31. Maximum number of
read transactions that can be issued back to back.
@@ -69,7 +69,7 @@ What: /sys/devices/platform/hidma-mgmt*/max_read_request
/sys/devices/platform/QCOM8060:*/max_read_request
Date: Nov 2015
KernelVersion: 4.4
-Contact: "Sinan Kaya <okaya@codeaurora.org>"
+Contact: "Sinan Kaya <okaya@kernel.org>"
Description:
Size of each read request. The value needs to be a power
of two and can be between 128 and 1024.
@@ -78,7 +78,7 @@ What: /sys/devices/platform/hidma-mgmt*/max_wr_xactions
/sys/devices/platform/QCOM8060:*/max_wr_xactions
Date: Nov 2015
KernelVersion: 4.4
-Contact: "Sinan Kaya <okaya@codeaurora.org>"
+Contact: "Sinan Kaya <okaya@kernel.org>"
Description:
Contains a value between 0 and 31. Maximum number of
write transactions that can be issued back to back.
@@ -91,7 +91,7 @@ What: /sys/devices/platform/hidma-mgmt*/max_write_request
/sys/devices/platform/QCOM8060:*/max_write_request
Date: Nov 2015
KernelVersion: 4.4
-Contact: "Sinan Kaya <okaya@codeaurora.org>"
+Contact: "Sinan Kaya <okaya@kernel.org>"
Description:
Size of each write request. The value needs to be a power
of two and can be between 128 and 1024.
diff --git a/Documentation/ABI/testing/sysfs-platform-ideapad-laptop b/Documentation/ABI/testing/sysfs-platform-ideapad-laptop
index 4989ab266682..5ec0dee9e707 100644
--- a/Documentation/ABI/testing/sysfs-platform-ideapad-laptop
+++ b/Documentation/ABI/testing/sysfs-platform-ideapad-laptop
@@ -27,15 +27,6 @@ Description:
* 1 -> Switched On
* 0 -> Switched Off
-What: /sys/bus/platform/devices/VPC2004:*/conservation_mode
-Date: Aug 2017
-KernelVersion: 4.14
-Contact: platform-driver-x86@vger.kernel.org
-Description:
- Controls whether the conservation mode is enabled or not.
- This feature limits the maximum battery charge percentage to
- around 50-60% in order to prolong the lifetime of the battery.
-
What: /sys/bus/platform/devices/VPC2004:*/fn_lock
Date: May 2018
KernelVersion: 4.18
diff --git a/Documentation/ABI/testing/sysfs-platform-intel-wmi-sbl-fw-update b/Documentation/ABI/testing/sysfs-platform-intel-wmi-sbl-fw-update
index 02ae1e9bbfc8..7ffd1579b8f7 100644
--- a/Documentation/ABI/testing/sysfs-platform-intel-wmi-sbl-fw-update
+++ b/Documentation/ABI/testing/sysfs-platform-intel-wmi-sbl-fw-update
@@ -1,4 +1,4 @@
-What: /sys/bus/wmi/devices/44FADEB1-B204-40F2-8581-394BBDC1B651/firmware_update_request
+What: /sys/bus/wmi/devices/44FADEB1-B204-40F2-8581-394BBDC1B651[-X]/firmware_update_request
Date: April 2020
KernelVersion: 5.7
Contact: "Jithu Joseph" <jithu.joseph@intel.com>
diff --git a/Documentation/ABI/testing/sysfs-platform-intel-wmi-thunderbolt b/Documentation/ABI/testing/sysfs-platform-intel-wmi-thunderbolt
index fd3a7ec79760..10ef1282c9d2 100644
--- a/Documentation/ABI/testing/sysfs-platform-intel-wmi-thunderbolt
+++ b/Documentation/ABI/testing/sysfs-platform-intel-wmi-thunderbolt
@@ -1,4 +1,4 @@
-What: /sys/devices/platform/<platform>/force_power
+What: /sys/bus/wmi/devices/86CCFD48-205E-4A77-9C48-2021CBEDE341[-X]/force_power
Date: September 2017
KernelVersion: 4.15
Contact: "Mario Limonciello" <mario.limonciello@outlook.com>
diff --git a/Documentation/ABI/testing/sysfs-platform-kim b/Documentation/ABI/testing/sysfs-platform-kim
index 6a52d6d2b601..0a38caa62a32 100644
--- a/Documentation/ABI/testing/sysfs-platform-kim
+++ b/Documentation/ABI/testing/sysfs-platform-kim
@@ -9,7 +9,7 @@ Description:
The device name flows down to architecture specific board
initialization file from the ATAGS bootloader
firmware. The name exposed is read from the user-space
- dameon and opens the device when install is requested.
+ daemon and opens the device when install is requested.
What: /sys/devices/platform/kim/baud_rate
Date: January 2010
diff --git a/Documentation/ABI/testing/sysfs-platform-mellanox-bootctl b/Documentation/ABI/testing/sysfs-platform-mellanox-bootctl
index 9b99a81babb1..09f783fa0a53 100644
--- a/Documentation/ABI/testing/sysfs-platform-mellanox-bootctl
+++ b/Documentation/ABI/testing/sysfs-platform-mellanox-bootctl
@@ -75,3 +75,88 @@ KernelVersion: 6.4
Contact: "Liming Sun <limings@nvidia.com>"
Description:
The file used to access the BlueField boot fifo.
+
+What: /sys/bus/platform/devices/MLNXBF04:00/rsh_log
+Date: May 2023
+KernelVersion: 6.4
+Contact: "Liming Sun <limings@nvidia.com>"
+Description:
+ The file used to write BlueField boot log with the format
+ "[INFO|WARN|ERR|ASSERT ]<msg>". Log level 'INFO' is used by
+ default if not specified.
+
+What: /sys/bus/platform/devices/MLNXBF04:00/oob_mac
+Date: August 2023
+KernelVersion: 6.5
+Contact: "David Thompson <davthompson@nvidia.com>"
+Description:
+ The "oob_mac" sysfs attribute holds the MAC address for
+ the out-of-band 1Gbps Ethernet port. This MAC address is
+ provided on a board-level label.
+
+What: /sys/bus/platform/devices/MLNXBF04:00/opn
+Date: August 2023
+KernelVersion: 6.5
+Contact: "David Thompson <davthompson@nvidia.com>"
+Description:
+ The "opn" sysfs attribute holds the board's part number.
+ This value is provided on a board-level label.
+
+What: /sys/bus/platform/devices/MLNXBF04:00/sku
+Date: August 2023
+KernelVersion: 6.5
+Contact: "David Thompson <davthompson@nvidia.com>"
+Description:
+ The "sku" sysfs attribute holds the board's SKU number.
+ This value is provided on a board-level label.
+
+What: /sys/bus/platform/devices/MLNXBF04:00/modl
+Date: August 2023
+KernelVersion: 6.5
+Contact: "David Thompson <davthompson@nvidia.com>"
+Description:
+ The "modl" sysfs attribute holds the board's model number.
+ This value is provided on a board-level label.
+
+What: /sys/bus/platform/devices/MLNXBF04:00/sn
+Date: August 2023
+KernelVersion: 6.5
+Contact: "David Thompson <davthompson@nvidia.com>"
+Description:
+ The "sn" sysfs attribute holds the board's serial number.
+ This value is provided on a board-level label.
+
+What: /sys/bus/platform/devices/MLNXBF04:00/uuid
+Date: August 2023
+KernelVersion: 6.5
+Contact: "David Thompson <davthompson@nvidia.com>"
+Description:
+ The "uuid" sysfs attribute holds the board's UUID.
+ This value is provided by the manufacturing team.
+
+What: /sys/bus/platform/devices/MLNXBF04:00/rev
+Date: August 2023
+KernelVersion: 6.5
+Contact: "David Thompson <davthompson@nvidia.com>"
+Description:
+ The "rev" sysfs attribute holds the board's revision.
+ This value is provided on a board-level label.
+
+What: /sys/bus/platform/devices/MLNXBF04:00/mfg_lock
+Date: August 2023
+KernelVersion: 6.5
+Contact: "David Thompson <davthompson@nvidia.com>"
+Description:
+ The "mfg_lock" sysfs attribute is write-only.
+ A successful write to this attribute will latch the
+ board-level attributes into EEPROM, making them read-only.
+
+What: /sys/bus/platform/devices/MLNXBF04:00/rtc_battery
+Date: June 2025
+KernelVersion: 6.15
+Contact: "Xiangrong Li <xiangrongl@nvidia.com>"
+Description:
+ The "rtc_battery" sysfs attribute is read-only.
+ A successful read from this attribute returns the status of
+ the board's RTC battery. The RTC battery status register is
+ also cleared upon successful read operation.
diff --git a/Documentation/ABI/testing/sysfs-platform-mellanox-pmc b/Documentation/ABI/testing/sysfs-platform-mellanox-pmc
new file mode 100644
index 000000000000..29b3f9c58e00
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-platform-mellanox-pmc
@@ -0,0 +1,64 @@
+HID Driver Description
+MLNXBFD0 mlxbf-pmc Performance counters (BlueField-1)
+MLNXBFD1 mlxbf-pmc Performance counters (BlueField-2)
+MLNXBFD2 mlxbf-pmc Performance counters (BlueField-3)
+
+What: /sys/bus/platform/devices/<HID>/hwmon/hwmonX/<block>/event_list
+Date: Dec 2020
+KernelVersion: 5.10
+Contact: "Shravan Kumar Ramani <shravankr@nvidia.com>"
+Description:
+ List of events supported by the counters in the specific block.
+ It is used to extract the event number or ID associated with
+ each event.
+
+What: /sys/bus/platform/devices/<HID>/hwmon/hwmonX/<block>/event<N>
+Date: Dec 2020
+KernelVersion: 5.10
+Contact: "Shravan Kumar Ramani <shravankr@nvidia.com>"
+Description:
+ Event monitored by corresponding counter. This is used to
+ program or read back the event that should be or is currently
+ being monitored by counter<N>.
+
+What: /sys/bus/platform/devices/<HID>/hwmon/hwmonX/<block>/counter<N>
+Date: Dec 2020
+KernelVersion: 5.10
+Contact: "Shravan Kumar Ramani <shravankr@nvidia.com>"
+Description:
+ Counter value of the event being monitored. This is used to
+ read the counter value of the event which was programmed using
+ event<N>. This is also used to clear or reset the counter value
+ by writing 0 to the counter sysfs.
+
+What: /sys/bus/platform/devices/<HID>/hwmon/hwmonX/<block>/enable
+Date: Dec 2020
+KernelVersion: 5.10
+Contact: "Shravan Kumar Ramani <shravankr@nvidia.com>"
+Description:
+ Start or stop counters. This is used to start the counters
+ for monitoring the programmed events and also to stop the
+ counters after the desired duration. Writing value 1 will
+ start all the counters in the block, and writing 0 will
+ stop all the counters together.
+
+What: /sys/bus/platform/devices/<HID>/hwmon/hwmonX/<block>/<reg>
+Date: Dec 2020
+KernelVersion: 5.10
+Contact: "Shravan Kumar Ramani <shravankr@nvidia.com>"
+Description:
+ Value of register. This is used to read or reset the registers
+ where various performance statistics are counted for each block.
+ Writing 0 to the sysfs will clear the counter, writing any other
+ value is not allowed.
+
+What: /sys/bus/platform/devices/<HID>/hwmon/hwmonX/<block>/count_clock
+Date: Mar 2025
+KernelVersion: 6.14
+Contact: "Shravan Kumar Ramani <shravankr@nvidia.com>"
+Description:
+ Use a counter for counting cycles. This is used to repurpose/dedicate
+ any of the counters in the block to counting cycles. Each counter is
+ represented by a bit (bit 0 for counter0, bit1 for counter1 and so on)
+ and setting the corresponding bit will reserve that specific counter
+ for counting cycles and override the event<N> setting.
diff --git a/Documentation/ABI/testing/sysfs-platform-oxp b/Documentation/ABI/testing/sysfs-platform-oxp
new file mode 100644
index 000000000000..b3f39fc21dfa
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-platform-oxp
@@ -0,0 +1,25 @@
+What: /sys/devices/platform/<platform>/tt_toggle
+Date: Jun 2023
+KernelVersion: 6.5
+Contact: "Antheas Kapenekakis" <lkml@antheas.dev>
+Description:
+ Takeover TDP controls from the device. OneXPlayer devices have a
+ turbo button that can be used to switch between two TDP modes
+ (usually 15W and 25W). By setting this attribute to 1, this
+ functionality is disabled, handing TDP control over to (Windows)
+ userspace software and the Turbo button turns into a keyboard
+ shortcut over the AT keyboard of the device. In addition,
+ using this setting is a prerequisite for PWM control for most
+ newer models (otherwise it NOOPs).
+
+What: /sys/devices/platform/<platform>/tt_led
+Date: April 2025
+KernelVersion: 6.16
+Contact: "Antheas Kapenekakis" <lkml@antheas.dev>
+Description:
+ Some OneXPlayer devices (e.g., X1 series) feature a little LED
+ nested in the Turbo button. This LED is illuminated when the
+ device is in the higher TDP mode (e.g., 25W). Once tt_toggle
+ is engaged, this LED is left dangling to its last state. This
+ attribute allows userspace to control the LED state manually
+ (either with 1 or 0). Only a subset of devices contain this LED.
diff --git a/Documentation/ABI/testing/sysfs-platform-power-on-reason b/Documentation/ABI/testing/sysfs-platform-power-on-reason
new file mode 100644
index 000000000000..c3b29dbc64bf
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-platform-power-on-reason
@@ -0,0 +1,12 @@
+What: /sys/devices/platform/.../power_on_reason
+Date: June 2023
+KernelVersion: 6.5
+Contact: Kamel Bouhara <kamel.bouhara@bootlin.com>
+Description: Shows system power on reason. The following strings/reasons can
+ be read (the list can be extended):
+ "regular power-up", "RTC wakeup", "watchdog timeout",
+ "software reset", "reset button action", "CPU clock failure",
+ "crystal oscillator failure", "brown-out reset",
+ "unknown reason".
+
+ The file is read only.
diff --git a/Documentation/ABI/testing/sysfs-platform-silicom b/Documentation/ABI/testing/sysfs-platform-silicom
new file mode 100644
index 000000000000..4d1cc5bdbcc5
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-platform-silicom
@@ -0,0 +1,30 @@
+What: /sys/devices/platform/silicom-platform/uc_version
+Date: November 2023
+KernelVersion: 6.7
+Contact: Henry Shi <henrys@silicom-usa.com>
+Description:
+ This file allows to read microcontroller firmware
+ version of current platform.
+
+What: /sys/devices/platform/silicom-platform/power_cycle
+Date: November 2023
+KernelVersion: 6.7
+Contact: Henry Shi <henrys@silicom-usa.com>
+Description:
+ This file allow user to power cycle the platform.
+ Default value is 0; when set to 1, it powers down
+ the platform, waits 5 seconds, then powers on the
+ device. It returns to default value after power cycle.
+
+ 0 - default value.
+
+What: /sys/devices/platform/silicom-platform/efuse_status
+Date: November 2023
+KernelVersion: 6.7
+Contact: Henry Shi <henrys@silicom-usa.com>
+Description:
+ This file is read only. It returns the current
+ OTP status:
+
+ 0 - not programmed.
+ 1 - programmed.
diff --git a/Documentation/ABI/testing/sysfs-platform-sst-atom b/Documentation/ABI/testing/sysfs-platform-sst-atom
index 0154b0fba759..4bb2e6135c2e 100644
--- a/Documentation/ABI/testing/sysfs-platform-sst-atom
+++ b/Documentation/ABI/testing/sysfs-platform-sst-atom
@@ -4,7 +4,7 @@ KernelVersion: 4.10
Contact: "Sebastien Guiriec" <sebastien.guiriec@intel.com>
Description:
LPE Firmware version for SST driver on all atom
- plaforms (BYT/CHT/Merrifield/BSW).
+ platforms (BYT/CHT/Merrifield/BSW).
If the FW has never been loaded it will display::
"FW not yet loaded"
diff --git a/Documentation/ABI/testing/sysfs-platform_profile b/Documentation/ABI/testing/sysfs-platform_profile
index baf1d125f9f8..125324ab53a9 100644
--- a/Documentation/ABI/testing/sysfs-platform_profile
+++ b/Documentation/ABI/testing/sysfs-platform_profile
@@ -33,3 +33,8 @@ Description: Reading this file gives the current selected profile for this
source such as e.g. a hotkey triggered profile change handled
either directly by the embedded-controller or fully handled
inside the kernel.
+
+ This file may also emit the string 'custom' to indicate
+ that multiple platform profiles drivers are in use but
+ have different values. This string can not be written to
+ this interface and is solely for informational purposes.
diff --git a/Documentation/ABI/testing/sysfs-power b/Documentation/ABI/testing/sysfs-power
index a3942b1036e2..d38da077905a 100644
--- a/Documentation/ABI/testing/sysfs-power
+++ b/Documentation/ABI/testing/sysfs-power
@@ -1,6 +1,6 @@
What: /sys/power/
Date: August 2006
-Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
+Contact: Rafael J. Wysocki <rafael@kernel.org>
Description:
The /sys/power directory will contain files that will
provide a unified interface to the power management
@@ -8,7 +8,7 @@ Description:
What: /sys/power/state
Date: November 2016
-Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
+Contact: Rafael J. Wysocki <rafael@kernel.org>
Description:
The /sys/power/state file controls system sleep states.
Reading from this file returns the available sleep state
@@ -23,7 +23,7 @@ Description:
What: /sys/power/mem_sleep
Date: November 2016
-Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
+Contact: Rafael J. Wysocki <rafael@kernel.org>
Description:
The /sys/power/mem_sleep file controls the operating mode of
system suspend. Reading from it returns the available modes
@@ -41,7 +41,7 @@ Description:
What: /sys/power/disk
Date: September 2006
-Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
+Contact: Rafael J. Wysocki <rafael@kernel.org>
Description:
The /sys/power/disk file controls the operating mode of the
suspend-to-disk mechanism. Reading from this file returns
@@ -90,7 +90,7 @@ Description:
What: /sys/power/image_size
Date: August 2006
-Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
+Contact: Rafael J. Wysocki <rafael@kernel.org>
Description:
The /sys/power/image_size file controls the size of the image
created by the suspend-to-disk mechanism. It can be written a
@@ -107,7 +107,7 @@ Description:
What: /sys/power/pm_trace
Date: August 2006
-Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
+Contact: Rafael J. Wysocki <rafael@kernel.org>
Description:
The /sys/power/pm_trace file controls the code which saves the
last PM event point in the RTC across reboots, so that you can
@@ -131,7 +131,7 @@ Description:
CAUTION: Using it will cause your machine's real-time (CMOS)
clock to be set to a random invalid time after a resume.
-What; /sys/power/pm_trace_dev_match
+What: /sys/power/pm_trace_dev_match
Date: October 2010
Contact: James Hogan <jhogan@kernel.org>
Description:
@@ -156,7 +156,7 @@ Description:
What: /sys/power/pm_async
Date: January 2009
-Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
+Contact: Rafael J. Wysocki <rafael@kernel.org>
Description:
The /sys/power/pm_async file controls the switch allowing the
user space to enable or disable asynchronous suspend and resume
@@ -169,7 +169,7 @@ Description:
What: /sys/power/wakeup_count
Date: July 2010
-Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
+Contact: Rafael J. Wysocki <rafael@kernel.org>
Description:
The /sys/power/wakeup_count file allows user space to put the
system into a sleep state while taking into account the
@@ -184,7 +184,7 @@ Description:
What: /sys/power/reserved_size
Date: May 2011
-Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
+Contact: Rafael J. Wysocki <rafael@kernel.org>
Description:
The /sys/power/reserved_size file allows user space to control
the amount of memory reserved for allocations made by device
@@ -198,7 +198,7 @@ Description:
What: /sys/power/autosleep
Date: April 2012
-Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
+Contact: Rafael J. Wysocki <rafael@kernel.org>
Description:
The /sys/power/autosleep file can be written one of the strings
returned by reads from /sys/power/state. If that happens, a
@@ -215,7 +215,7 @@ Description:
What: /sys/power/wake_lock
Date: February 2012
-Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
+Contact: Rafael J. Wysocki <rafael@kernel.org>
Description:
The /sys/power/wake_lock file allows user space to create
wakeup source objects and activate them on demand (if one of
@@ -242,7 +242,7 @@ Description:
What: /sys/power/wake_unlock
Date: February 2012
-Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
+Contact: Rafael J. Wysocki <rafael@kernel.org>
Description:
The /sys/power/wake_unlock file allows user space to deactivate
wakeup sources created with the help of /sys/power/wake_lock.
@@ -283,7 +283,7 @@ Description:
What: /sys/power/pm_debug_messages
Date: July 2017
-Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
+Contact: Rafael J. Wysocki <rafael@kernel.org>
Description:
The /sys/power/pm_debug_messages file controls the printing
of debug messages from the system suspend/hiberbation
@@ -454,3 +454,19 @@ Description:
disables it. Reads from the file return the current value.
The default is "1" if the build-time "SUSPEND_SKIP_SYNC" config
flag is unset, or "0" otherwise.
+
+What: /sys/power/hibernate_compression_threads
+Date: October 2025
+Contact: <luoxueqin@kylinos.cn>
+Description:
+ Controls the number of threads used for compression
+ and decompression of hibernation images.
+
+ The value can be adjusted at runtime to balance
+ performance and CPU utilization.
+
+ The change takes effect on the next hibernation or
+ resume operation.
+
+ Minimum value: 1
+ Default value: 3
diff --git a/Documentation/ABI/testing/sysfs-pps-gen b/Documentation/ABI/testing/sysfs-pps-gen
new file mode 100644
index 000000000000..2519207b88fd
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-pps-gen
@@ -0,0 +1,43 @@
+What: /sys/class/pps-gen/
+Date: February 2025
+KernelVersion: 6.13
+Contact: Rodolfo Giometti <giometti@enneenne.com>
+Description:
+ The /sys/class/pps-gen/ directory contains files and
+ directories that provide a unified interface to the PPS
+ generators.
+
+What: /sys/class/pps-gen/pps-genX/
+Date: February 2025
+KernelVersion: 6.13
+Contact: Rodolfo Giometti <giometti@enneenne.com>
+Description:
+ The /sys/class/pps-gen/pps-genX/ directory is related to X-th
+ PPS generator in the system. Each directory contain files to
+ manage and control its PPS generator.
+
+What: /sys/class/pps-gen/pps-genX/enable
+Date: February 2025
+KernelVersion: 6.13
+Contact: Rodolfo Giometti <giometti@enneenne.com>
+Description:
+ This write-only file enables or disables generation of the
+ PPS signal.
+
+What: /sys/class/pps-gen/pps-genX/system
+Date: February 2025
+KernelVersion: 6.13
+Contact: Rodolfo Giometti <giometti@enneenne.com>
+Description:
+ This read-only file returns "1" if the generator takes the
+ timing from the system clock, while it returns "0" if not
+ (i.e. from a peripheral device clock).
+
+What: /sys/class/pps-gen/pps-genX/time
+Date: February 2025
+KernelVersion: 6.13
+Contact: Rodolfo Giometti <giometti@enneenne.com>
+Description:
+ This read-only file contains the current time stored into the
+ generator clock as two integers representing the current time
+ seconds and nanoseconds.
diff --git a/Documentation/ABI/testing/sysfs-pps-gen-tio b/Documentation/ABI/testing/sysfs-pps-gen-tio
new file mode 100644
index 000000000000..3c34ff17a335
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-pps-gen-tio
@@ -0,0 +1,6 @@
+What: /sys/class/pps-gen/pps-genx/enable
+Date: April 2025
+KernelVersion: 6.15
+Contact: Subramanian Mohan<subramanian.mohan@intel.com>
+Description:
+ Enable or disable PPS TIO generator output.
diff --git a/Documentation/ABI/testing/sysfs-secvar b/Documentation/ABI/testing/sysfs-secvar
index 857cf12b0904..1016967a730f 100644
--- a/Documentation/ABI/testing/sysfs-secvar
+++ b/Documentation/ABI/testing/sysfs-secvar
@@ -22,9 +22,13 @@ Description: A string indicating which backend is in use by the firmware.
and is expected to be "ibm,edk2-compat-v1".
On pseries/PLPKS, this is generated by the kernel based on the
- version number in the SB_VERSION variable in the keystore, and
- has the form "ibm,plpks-sb-v<version>", or
- "ibm,plpks-sb-unknown" if there is no SB_VERSION variable.
+ version number in the SB_VERSION variable in the keystore. The
+ version numbering in the SB_VERSION variable starts from 1. The
+ format string takes the form "ibm,plpks-sb-v<version>" in the
+ case of dynamic key management mode. If the SB_VERSION variable
+ does not exist (or there is an error while reading it), it takes
+ the form "ibm,plpks-sb-v0", indicating that the key management
+ mode is static.
What: /sys/firmware/secvar/vars/<variable name>
Date: August 2019
@@ -34,6 +38,13 @@ Description: Each secure variable is represented as a directory named as
representation. The data and size can be determined by reading
their respective attribute files.
+ Only secvars relevant to the key management mode are exposed.
+ Only in the dynamic key management mode should the user have
+ access (read and write) to the secure boot secvars db, dbx,
+ grubdb, grubdbx, and sbat. These secvars are not consumed in the
+ static key management mode. PK, trustedcadb and moduledb are the
+ secvars common to both static and dynamic key management modes.
+
What: /sys/firmware/secvar/vars/<variable_name>/size
Date: August 2019
Contact: Nayna Jain <nayna@linux.ibm.com>
diff --git a/Documentation/ABI/testing/sysfs-timecard b/Documentation/ABI/testing/sysfs-timecard
index 220478156297..3ae41b7634ac 100644
--- a/Documentation/ABI/testing/sysfs-timecard
+++ b/Documentation/ABI/testing/sysfs-timecard
@@ -258,24 +258,29 @@ Description: (RW) When retrieving the PHC with the PTP SYS_OFFSET_EXTENDED
the estimated point where the FPGA latches the PHC time. This
value may be changed by writing an unsigned integer.
-What: /sys/class/timecard/ocpN/ttyGNSS
-What: /sys/class/timecard/ocpN/ttyGNSS2
-Date: September 2021
+What: /sys/class/timecard/ocpN/tty
+Date: August 2024
+Contact: Vadim Fedorenko <vadim.fedorenko@linux.dev>
+Description: (RO) Directory containing the sysfs nodes for TTY attributes
+
+What: /sys/class/timecard/ocpN/tty/ttyGNSS
+What: /sys/class/timecard/ocpN/tty/ttyGNSS2
+Date: August 2024
Contact: Jonathan Lemon <jonathan.lemon@gmail.com>
-Description: These optional attributes link to the TTY serial ports
- associated with the GNSS devices.
+Description: (RO) These optional attributes contain names of the TTY serial
+ ports associated with the GNSS devices.
-What: /sys/class/timecard/ocpN/ttyMAC
-Date: September 2021
+What: /sys/class/timecard/ocpN/tty/ttyMAC
+Date: August 2024
Contact: Jonathan Lemon <jonathan.lemon@gmail.com>
-Description: This optional attribute links to the TTY serial port
- associated with the Miniature Atomic Clock.
+Description: (RO) This optional attribute contains name of the TTY serial
+ port associated with the Miniature Atomic Clock.
-What: /sys/class/timecard/ocpN/ttyNMEA
-Date: September 2021
+What: /sys/class/timecard/ocpN/tty/ttyNMEA
+Date: August 2024
Contact: Jonathan Lemon <jonathan.lemon@gmail.com>
-Description: This optional attribute links to the TTY serial port
- which outputs the PHC time in NMEA ZDA format.
+Description: (RO) This optional attribute contains name of the TTY serial
+ port which outputs the PHC time in NMEA ZDA format.
What: /sys/class/timecard/ocpN/utc_tai_offset
Date: September 2021
diff --git a/Documentation/ABI/testing/sysfs-tty b/Documentation/ABI/testing/sysfs-tty
index 820e412d38a8..895c47f05f6f 100644
--- a/Documentation/ABI/testing/sysfs-tty
+++ b/Documentation/ABI/testing/sysfs-tty
@@ -87,19 +87,22 @@ What: /sys/class/tty/ttyS<x>/close_delay
Date: October 2012
Contact: Alan Cox <alan@linux.intel.com>
Description:
- Show the closing delay time for this port in ms.
+ Show the closing delay time for this port in centiseconds.
- These sysfs values expose the TIOCGSERIAL interface via
- sysfs rather than via ioctls.
+ These sysfs values expose the TIOCGSERIAL interface via
+ sysfs rather than via ioctls.
What: /sys/class/tty/ttyS<x>/closing_wait
Date: October 2012
Contact: Alan Cox <alan@linux.intel.com>
Description:
- Show the close wait time for this port in ms.
+ Show the close wait time for this port in centiseconds.
- These sysfs values expose the TIOCGSERIAL interface via
- sysfs rather than via ioctls.
+ Waiting forever is represented as 0. If waiting on close is
+ disabled then the value is 65535.
+
+ These sysfs values expose the TIOCGSERIAL interface via
+ sysfs rather than via ioctls.
What: /sys/class/tty/ttyS<x>/custom_divisor
Date: October 2012
diff --git a/Documentation/ABI/testing/sysfs-wusb_cbaf b/Documentation/ABI/testing/sysfs-wusb_cbaf
deleted file mode 100644
index 2969d3694ec0..000000000000
--- a/Documentation/ABI/testing/sysfs-wusb_cbaf
+++ /dev/null
@@ -1,101 +0,0 @@
-What: /sys/bus/usb/drivers/wusb_cbaf/.../wusb_*
-Date: August 2008
-KernelVersion: 2.6.27
-Contact: David Vrabel <david.vrabel@csr.com>
-Description:
- Various files for managing Cable Based Association of
- (wireless) USB devices.
-
- The sequence of operations should be:
-
- 1. Device is plugged in.
-
- 2. The connection manager (CM) sees a device with CBA capability.
- (the wusb_chid etc. files in /sys/devices/blah/OURDEVICE).
-
- 3. The CM writes the host name, supported band groups,
- and the CHID (host ID) into the wusb_host_name,
- wusb_host_band_groups and wusb_chid files. These
- get sent to the device and the CDID (if any) for
- this host is requested.
-
- 4. The CM can verify that the device's supported band
- groups (wusb_device_band_groups) are compatible
- with the host.
-
- 5. The CM reads the wusb_cdid file.
-
- 6. The CM looks it up its database.
-
- - If it has a matching CHID,CDID entry, the device
- has been authorized before and nothing further
- needs to be done.
-
- - If the CDID is zero (or the CM doesn't find a
- matching CDID in its database), the device is
- assumed to be not known. The CM may associate
- the host with device by: writing a randomly
- generated CDID to wusb_cdid and then a random CK
- to wusb_ck (this uploads the new CC to the
- device).
-
- CMD may choose to prompt the user before
- associating with a new device.
-
- 7. Device is unplugged.
-
- References:
- [WUSB-AM]
- Association Models Supplement to the
- Certified Wireless Universal Serial Bus
- Specification, version 1.0.
-
-What: /sys/bus/usb/drivers/wusb_cbaf/.../wusb_chid
-Date: August 2008
-KernelVersion: 2.6.27
-Contact: David Vrabel <david.vrabel@csr.com>
-Description:
- The CHID of the host formatted as 16 space-separated
- hex octets.
-
- Writes fetches device's supported band groups and the
- the CDID for any existing association with this host.
-
-What: /sys/bus/usb/drivers/wusb_cbaf/.../wusb_host_name
-Date: August 2008
-KernelVersion: 2.6.27
-Contact: David Vrabel <david.vrabel@csr.com>
-Description:
- A friendly name for the host as a UTF-8 encoded string.
-
-What: /sys/bus/usb/drivers/wusb_cbaf/.../wusb_host_band_groups
-Date: August 2008
-KernelVersion: 2.6.27
-Contact: David Vrabel <david.vrabel@csr.com>
-Description:
- The band groups supported by the host, in the format
- defined in [WUSB-AM].
-
-What: /sys/bus/usb/drivers/wusb_cbaf/.../wusb_device_band_groups
-Date: August 2008
-KernelVersion: 2.6.27
-Contact: David Vrabel <david.vrabel@csr.com>
-Description:
- The band groups supported by the device, in the format
- defined in [WUSB-AM].
-
-What: /sys/bus/usb/drivers/wusb_cbaf/.../wusb_cdid
-Date: August 2008
-KernelVersion: 2.6.27
-Contact: David Vrabel <david.vrabel@csr.com>
-Description:
- The device's CDID formatted as 16 space-separated hex
- octets.
-
-What: /sys/bus/usb/drivers/wusb_cbaf/.../wusb_ck
-Date: August 2008
-KernelVersion: 2.6.27
-Contact: David Vrabel <david.vrabel@csr.com>
-Description:
- Write 16 space-separated random, hex octets to
- associate with the device.
diff --git a/Documentation/Kconfig b/Documentation/Kconfig
index 3a0e7ac0c4e3..8b6c4b84b218 100644
--- a/Documentation/Kconfig
+++ b/Documentation/Kconfig
@@ -19,7 +19,7 @@ config WARN_ABI_ERRORS
described at Documentation/ABI/README. Yet, as they're manually
written, it would be possible that some of those files would
have errors that would break them for being parsed by
- scripts/get_abi.pl. Add a check to verify them.
+ tools/docs/get_abi.py. Add a check to verify them.
If unsure, select 'N'.
diff --git a/Documentation/Makefile b/Documentation/Makefile
index 023fa658a0a8..e96ac6dcac4f 100644
--- a/Documentation/Makefile
+++ b/Documentation/Makefile
@@ -5,14 +5,16 @@
# for cleaning
subdir- := devicetree/bindings
+ifneq ($(MAKECMDGOALS),cleandocs)
# Check for broken documentation file references
ifeq ($(CONFIG_WARN_MISSING_DOCUMENTS),y)
-$(shell $(srctree)/scripts/documentation-file-ref-check --warn)
+$(shell $(srctree)/tools/docs/documentation-file-ref-check --warn)
endif
# Check for broken ABI files
ifeq ($(CONFIG_WARN_ABI_ERRORS),y)
-$(shell $(srctree)/scripts/get_abi.pl validate --dir $(srctree)/Documentation/ABI)
+$(shell $(srctree)/tools/docs/get_abi.py --dir $(srctree)/Documentation/ABI validate)
+endif
endif
# You can set these variables from the command line.
@@ -21,16 +23,21 @@ SPHINXOPTS =
SPHINXDIRS = .
DOCS_THEME =
DOCS_CSS =
-_SPHINXDIRS = $(sort $(patsubst $(srctree)/Documentation/%/index.rst,%,$(wildcard $(srctree)/Documentation/*/index.rst)))
-SPHINX_CONF = conf.py
+RUSTDOC =
PAPER =
BUILDDIR = $(obj)/output
PDFLATEX = xelatex
LATEXOPTS = -interaction=batchmode -no-shell-escape
-ifeq ($(findstring 1, $(KBUILD_VERBOSE)),)
-SPHINXOPTS += "-q"
-endif
+PYTHONPYCACHEPREFIX ?= $(abspath $(BUILDDIR)/__pycache__)
+
+# Wrapper for sphinx-build
+
+BUILD_WRAPPER = $(srctree)/tools/docs/sphinx-build-wrapper
+
+# For denylisting "variable font" files
+# Can be overridden by setting as an env variable
+FONTS_CONF_DENY_VF ?= $(HOME)/deny-vf
# User-friendly check for sphinx-build
HAVE_SPHINX := $(shell if which $(SPHINXBUILD) >/dev/null 2>&1; then echo 1; else echo 0; fi)
@@ -40,120 +47,46 @@ ifeq ($(HAVE_SPHINX),0)
.DEFAULT:
$(warning The '$(SPHINXBUILD)' command was not found. Make sure you have Sphinx installed and in PATH, or set the SPHINXBUILD make variable to point to the full path of the '$(SPHINXBUILD)' executable.)
@echo
- @$(srctree)/scripts/sphinx-pre-install
+ @$(srctree)/tools/docs/sphinx-pre-install
@echo " SKIP Sphinx $@ target."
else # HAVE_SPHINX
-# User-friendly check for pdflatex and latexmk
-HAVE_PDFLATEX := $(shell if which $(PDFLATEX) >/dev/null 2>&1; then echo 1; else echo 0; fi)
-HAVE_LATEXMK := $(shell if which latexmk >/dev/null 2>&1; then echo 1; else echo 0; fi)
-
-ifeq ($(HAVE_LATEXMK),1)
- PDFLATEX := latexmk -$(PDFLATEX)
-endif #HAVE_LATEXMK
-
-# Internal variables.
-PAPEROPT_a4 = -D latex_paper_size=a4
-PAPEROPT_letter = -D latex_paper_size=letter
-KERNELDOC = $(srctree)/scripts/kernel-doc
-KERNELDOC_CONF = -D kerneldoc_srctree=$(srctree) -D kerneldoc_bin=$(KERNELDOC)
-ALLSPHINXOPTS = $(KERNELDOC_CONF) $(PAPEROPT_$(PAPER)) $(SPHINXOPTS)
-# the i18n builder cannot share the environment and doctrees with the others
-I18NSPHINXOPTS = $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) .
-
-# commands; the 'cmd' from scripts/Kbuild.include is not *loopable*
-loop_cmd = $(echo-cmd) $(cmd_$(1)) || exit;
-
-# $2 sphinx builder e.g. "html"
-# $3 name of the build subfolder / e.g. "userspace-api/media", used as:
-# * dest folder relative to $(BUILDDIR) and
-# * cache folder relative to $(BUILDDIR)/.doctrees
-# $4 dest subfolder e.g. "man" for man pages at userspace-api/media/man
-# $5 reST source folder relative to $(srctree)/$(src),
-# e.g. "userspace-api/media" for the linux-tv book-set at ./Documentation/userspace-api/media
-
-quiet_cmd_sphinx = SPHINX $@ --> file://$(abspath $(BUILDDIR)/$3/$4)
- cmd_sphinx = $(MAKE) BUILDDIR=$(abspath $(BUILDDIR)) $(build)=Documentation/userspace-api/media $2 && \
- PYTHONDONTWRITEBYTECODE=1 \
- BUILDDIR=$(abspath $(BUILDDIR)) SPHINX_CONF=$(abspath $(srctree)/$(src)/$5/$(SPHINX_CONF)) \
- $(PYTHON3) $(srctree)/scripts/jobserver-exec \
- $(CONFIG_SHELL) $(srctree)/Documentation/sphinx/parallel-wrapper.sh \
- $(SPHINXBUILD) \
- -b $2 \
- -c $(abspath $(srctree)/$(src)) \
- -d $(abspath $(BUILDDIR)/.doctrees/$3) \
- -D version=$(KERNELVERSION) -D release=$(KERNELRELEASE) \
- $(ALLSPHINXOPTS) \
- $(abspath $(srctree)/$(src)/$5) \
- $(abspath $(BUILDDIR)/$3/$4) && \
- if [ "x$(DOCS_CSS)" != "x" ]; then \
- cp $(if $(patsubst /%,,$(DOCS_CSS)),$(abspath $(srctree)/$(DOCS_CSS)),$(DOCS_CSS)) $(BUILDDIR)/$3/_static/; \
- fi
-
-htmldocs:
- @$(srctree)/scripts/sphinx-pre-install --version-check
- @+$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,html,$(var),,$(var)))
-
-texinfodocs:
- @$(srctree)/scripts/sphinx-pre-install --version-check
- @+$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,texinfo,$(var),texinfo,$(var)))
-
-# Note: the 'info' Make target is generated by sphinx itself when
-# running the texinfodocs target define above.
-infodocs: texinfodocs
- $(MAKE) -C $(BUILDDIR)/texinfo info
-
-linkcheckdocs:
- @$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,linkcheck,$(var),,$(var)))
-
-latexdocs:
- @$(srctree)/scripts/sphinx-pre-install --version-check
- @+$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,latex,$(var),latex,$(var)))
-
-ifeq ($(HAVE_PDFLATEX),0)
-
-pdfdocs:
- $(warning The '$(PDFLATEX)' command was not found. Make sure you have it installed and in PATH to produce PDF output.)
- @echo " SKIP Sphinx $@ target."
-
-else # HAVE_PDFLATEX
-
-pdfdocs: latexdocs
- @$(srctree)/scripts/sphinx-pre-install --version-check
- $(foreach var,$(SPHINXDIRS), \
- $(MAKE) PDFLATEX="$(PDFLATEX)" LATEXOPTS="$(LATEXOPTS)" -C $(BUILDDIR)/$(var)/latex || exit; \
- mkdir -p $(BUILDDIR)/$(var)/pdf; \
- mv $(subst .tex,.pdf,$(wildcard $(BUILDDIR)/$(var)/latex/*.tex)) $(BUILDDIR)/$(var)/pdf/; \
- )
+# Common documentation targets
+htmldocs mandocs infodocs texinfodocs latexdocs epubdocs xmldocs pdfdocs linkcheckdocs:
+ $(Q)PYTHONPYCACHEPREFIX="$(PYTHONPYCACHEPREFIX)" \
+ $(srctree)/tools/docs/sphinx-pre-install --version-check
+ +$(Q)PYTHONPYCACHEPREFIX="$(PYTHONPYCACHEPREFIX)" \
+ $(PYTHON3) $(BUILD_WRAPPER) $@ \
+ --sphinxdirs="$(SPHINXDIRS)" $(RUSTDOC) \
+ --builddir="$(BUILDDIR)" --deny-vf=$(FONTS_CONF_DENY_VF) \
+ --theme=$(DOCS_THEME) --css=$(DOCS_CSS) --paper=$(PAPER)
-endif # HAVE_PDFLATEX
-epubdocs:
- @$(srctree)/scripts/sphinx-pre-install --version-check
- @+$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,epub,$(var),epub,$(var)))
-
-xmldocs:
- @$(srctree)/scripts/sphinx-pre-install --version-check
- @+$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,xml,$(var),xml,$(var)))
-
-endif # HAVE_SPHINX
+endif
# The following targets are independent of HAVE_SPHINX, and the rules should
# work or silently pass without Sphinx.
+htmldocs-redirects: $(srctree)/Documentation/.renames.txt
+ @tools/docs/gen-redirects.py --output $(BUILDDIR) < $<
+
refcheckdocs:
- $(Q)cd $(srctree);scripts/documentation-file-ref-check
+ $(Q)cd $(srctree); tools/docs/documentation-file-ref-check
cleandocs:
$(Q)rm -rf $(BUILDDIR)
- $(Q)$(MAKE) BUILDDIR=$(abspath $(BUILDDIR)) $(build)=Documentation/userspace-api/media clean
+
+# Used only on help
+_SPHINXDIRS = $(shell printf "%s\n" $(patsubst $(srctree)/Documentation/%/index.rst,%,$(wildcard $(srctree)/Documentation/*/index.rst)) | sort -f)
dochelp:
@echo ' Linux kernel internal documentation in different formats from ReST:'
@echo ' htmldocs - HTML'
+ @echo ' htmldocs-redirects - generate HTML redirects for moved pages'
@echo ' texinfodocs - Texinfo'
@echo ' infodocs - Info'
+ @echo ' mandocs - Man pages'
@echo ' latexdocs - LaTeX'
@echo ' pdfdocs - PDF'
@echo ' epubdocs - EPUB'
@@ -165,13 +98,17 @@ dochelp:
@echo ' cleandocs - clean all generated files'
@echo
@echo ' make SPHINXDIRS="s1 s2" [target] Generate only docs of folder s1, s2'
- @echo ' valid values for SPHINXDIRS are: $(_SPHINXDIRS)'
- @echo
- @echo ' make SPHINX_CONF={conf-file} [target] use *additional* sphinx-build'
- @echo ' configuration. This is e.g. useful to build with nit-picking config.'
+ @echo ' top level values for SPHINXDIRS are: $(_SPHINXDIRS)'
+ @echo ' you may also use a subdirectory like SPHINXDIRS=userspace-api/media,'
+ @echo ' provided that there is an index.rst file at the subdirectory.'
@echo
@echo ' make DOCS_THEME={sphinx-theme} selects a different Sphinx theme.'
@echo
@echo ' make DOCS_CSS={a .css file} adds a DOCS_CSS override file for html/epub output.'
@echo
+ @echo ' make PAPER={a4|letter} Specifies the paper size used for LaTeX/PDF output.'
+ @echo
+ @echo ' make FONTS_CONF_DENY_VF={path} sets a deny list to block variable Noto CJK fonts'
+ @echo ' for PDF build. See tools/lib/python/kdoc/latex_fonts.py for more details'
+ @echo
@echo ' Default location for the generated documents is Documentation/output'
diff --git a/Documentation/PCI/boot-interrupts.rst b/Documentation/PCI/boot-interrupts.rst
index 2ec70121bfca..931077bb0953 100644
--- a/Documentation/PCI/boot-interrupts.rst
+++ b/Documentation/PCI/boot-interrupts.rst
@@ -61,7 +61,7 @@ Conditions
==========
The use of threaded interrupts is the most likely condition to trigger
-this problem today. Threaded interrupts may not be reenabled after the IRQ
+this problem today. Threaded interrupts may not be re-enabled after the IRQ
handler wakes. These "one shot" conditions mean that the threaded interrupt
needs to keep the interrupt line masked until the threaded handler has run.
Especially when dealing with high data rate interrupts, the thread needs to
diff --git a/Documentation/PCI/controller/index.rst b/Documentation/PCI/controller/index.rst
new file mode 100644
index 000000000000..c2ce9ccdcfa0
--- /dev/null
+++ b/Documentation/PCI/controller/index.rst
@@ -0,0 +1,10 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+===========================================
+PCI Native Host Bridge and Endpoint Drivers
+===========================================
+
+.. toctree::
+ :maxdepth: 2
+
+ rcar-pcie-firmware
diff --git a/Documentation/PCI/controller/rcar-pcie-firmware.rst b/Documentation/PCI/controller/rcar-pcie-firmware.rst
new file mode 100644
index 000000000000..67d3bf66e315
--- /dev/null
+++ b/Documentation/PCI/controller/rcar-pcie-firmware.rst
@@ -0,0 +1,32 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=================================================
+Firmware of PCIe controller for Renesas R-Car V4H
+=================================================
+
+Renesas R-Car V4H (r8a779g0) has a PCIe controller, requiring a specific
+firmware download during startup.
+
+However, Renesas currently cannot distribute the firmware free of charge.
+
+The firmware file "104_PCIe_fw_addr_data_ver1.05.txt" (note that the file name
+might be different between different datasheet revisions) can be found in the
+datasheet encoded as text, and as such, the file's content must be converted
+back to binary form. This can be achieved using the following example script:
+
+.. code-block:: sh
+
+ $ awk '/^\s*0x[0-9A-Fa-f]{4}\s+0x[0-9A-Fa-f]{4}/ { print substr($2,5,2) substr($2,3,2) }' \
+ 104_PCIe_fw_addr_data_ver1.05.txt | \
+ xxd -p -r > rcar_gen4_pcie.bin
+
+Once the text content has been converted into a binary firmware file, verify
+its checksum as follows:
+
+.. code-block:: sh
+
+ $ sha1sum rcar_gen4_pcie.bin
+ 1d0bd4b189b4eb009f5d564b1f93a79112994945 rcar_gen4_pcie.bin
+
+The resulting binary file called "rcar_gen4_pcie.bin" should be placed in the
+"/lib/firmware" directory before the driver runs.
diff --git a/Documentation/PCI/endpoint/index.rst b/Documentation/PCI/endpoint/index.rst
index 4d2333e7ae06..dd1f62e731c9 100644
--- a/Documentation/PCI/endpoint/index.rst
+++ b/Documentation/PCI/endpoint/index.rst
@@ -15,6 +15,7 @@ PCI Endpoint Framework
pci-ntb-howto
pci-vntb-function
pci-vntb-howto
+ pci-nvme-function
function/binding/pci-test
function/binding/pci-ntb
diff --git a/Documentation/PCI/endpoint/pci-endpoint-cfs.rst b/Documentation/PCI/endpoint/pci-endpoint-cfs.rst
index fb73345cfb8a..e69c2872ce3b 100644
--- a/Documentation/PCI/endpoint/pci-endpoint-cfs.rst
+++ b/Documentation/PCI/endpoint/pci-endpoint-cfs.rst
@@ -86,7 +86,7 @@ The <EPF Device> directory can have a list of symbolic links
be created by the user to represent the virtual functions that are bound to
the physical function. In the above directory structure <EPF Device 11> is a
physical function and <EPF Device 31> is a virtual function. An EPF device once
-it's linked to another EPF device, cannot be linked to a EPC device.
+it's linked to another EPF device, cannot be linked to an EPC device.
EPC Device
==========
@@ -108,7 +108,7 @@ entries corresponding to EPC device will be created by the EPC core.
The <EPC Device> directory will have a list of symbolic links to
<EPF Device>. These symbolic links should be created by the user to
represent the functions present in the endpoint device. Only <EPF Device>
-that represents a physical function can be linked to a EPC device.
+that represents a physical function can be linked to an EPC device.
The <EPC Device> directory will also have a *start* field. Once
"1" is written to this field, the endpoint device will be ready to
diff --git a/Documentation/PCI/endpoint/pci-endpoint.rst b/Documentation/PCI/endpoint/pci-endpoint.rst
index 4f5622a65555..0741c8cbd74e 100644
--- a/Documentation/PCI/endpoint/pci-endpoint.rst
+++ b/Documentation/PCI/endpoint/pci-endpoint.rst
@@ -57,11 +57,10 @@ by the PCI controller driver.
The PCI controller driver can then create a new EPC device by invoking
devm_pci_epc_create()/pci_epc_create().
-* devm_pci_epc_destroy()/pci_epc_destroy()
+* pci_epc_destroy()
- The PCI controller driver can destroy the EPC device created by either
- devm_pci_epc_create() or pci_epc_create() using devm_pci_epc_destroy() or
- pci_epc_destroy().
+ The PCI controller driver can destroy the EPC device created by
+ pci_epc_create() using pci_epc_destroy().
* pci_epc_linkup()
@@ -117,6 +116,35 @@ by the PCI endpoint function driver.
The PCI endpoint function driver should use pci_epc_mem_free_addr() to
free the memory space allocated using pci_epc_mem_alloc_addr().
+* pci_epc_map_addr()
+
+ A PCI endpoint function driver should use pci_epc_map_addr() to map to a RC
+ PCI address the CPU address of local memory obtained with
+ pci_epc_mem_alloc_addr().
+
+* pci_epc_unmap_addr()
+
+ A PCI endpoint function driver should use pci_epc_unmap_addr() to unmap the
+ CPU address of local memory mapped to a RC address with pci_epc_map_addr().
+
+* pci_epc_mem_map()
+
+ A PCI endpoint controller may impose constraints on the RC PCI addresses that
+ can be mapped. The function pci_epc_mem_map() allows endpoint function
+ drivers to allocate and map controller memory while handling such
+ constraints. This function will determine the size of the memory that must be
+ allocated with pci_epc_mem_alloc_addr() for successfully mapping a RC PCI
+ address range. This function will also indicate the size of the PCI address
+ range that was actually mapped, which can be less than the requested size, as
+ well as the offset into the allocated memory to use for accessing the mapped
+ RC PCI address range.
+
+* pci_epc_mem_unmap()
+
+ A PCI endpoint function driver can use pci_epc_mem_unmap() to unmap and free
+ controller memory that was allocated and mapped using pci_epc_mem_map().
+
+
Other EPC APIs
~~~~~~~~~~~~~~
@@ -169,11 +197,11 @@ by the PCI endpoint function driver.
* pci_epf_register_driver()
The PCI Endpoint Function driver should implement the following ops:
- * bind: ops to perform when a EPC device has been bound to EPF device
- * unbind: ops to perform when a binding has been lost between a EPC
+ * bind: ops to perform when an EPC device has been bound to EPF device
+ * unbind: ops to perform when a binding has been lost between an EPC
device and EPF device
- * linkup: ops to perform when the EPC device has established a
- connection with a host system
+ * add_cfs: optional ops to create function specific configfs
+ attributes
The PCI Function driver can then register the PCI EPF driver by using
pci_epf_register_driver().
@@ -223,7 +251,7 @@ pci-ep-cfs.c can be used as reference for using these APIs.
* pci_epf_bind()
pci_epf_bind() should be invoked when the EPF device has been bound to
- a EPC device.
+ an EPC device.
* pci_epf_unbind()
diff --git a/Documentation/PCI/endpoint/pci-ntb-howto.rst b/Documentation/PCI/endpoint/pci-ntb-howto.rst
index 1884bf29caba..4261e7157ef1 100644
--- a/Documentation/PCI/endpoint/pci-ntb-howto.rst
+++ b/Documentation/PCI/endpoint/pci-ntb-howto.rst
@@ -88,13 +88,10 @@ commands can be used::
# echo 0x104c > functions/pci_epf_ntb/func1/vendorid
# echo 0xb00d > functions/pci_epf_ntb/func1/deviceid
-In order to configure NTB specific attributes, a new sub-directory to func1
-should be created::
-
- # mkdir functions/pci_epf_ntb/func1/pci_epf_ntb.0/
-
-The NTB function driver will populate this directory with various attributes
-that can be configured by the user::
+The PCI endpoint framework also automatically creates a sub-directory in the
+function attribute directory. This sub-directory has the same name as the name
+of the function device and is populated with the following NTB specific
+attributes that can be configured by the user::
# ls functions/pci_epf_ntb/func1/pci_epf_ntb.0/
db_count mw1 mw2 mw3 mw4 num_mws
diff --git a/Documentation/PCI/endpoint/pci-nvme-function.rst b/Documentation/PCI/endpoint/pci-nvme-function.rst
new file mode 100644
index 000000000000..a68015317f7f
--- /dev/null
+++ b/Documentation/PCI/endpoint/pci-nvme-function.rst
@@ -0,0 +1,13 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=================
+PCI NVMe Function
+=================
+
+:Author: Damien Le Moal <dlemoal@kernel.org>
+
+The PCI NVMe endpoint function implements a PCI NVMe controller using the NVMe
+subsystem target core code. The driver for this function resides with the NVMe
+subsystem as drivers/nvme/target/pci-epf.c.
+
+See Documentation/nvme/nvme-pci-endpoint-target.rst for more details.
diff --git a/Documentation/PCI/endpoint/pci-test-howto.rst b/Documentation/PCI/endpoint/pci-test-howto.rst
index 909f770a07d6..dd66858cde46 100644
--- a/Documentation/PCI/endpoint/pci-test-howto.rst
+++ b/Documentation/PCI/endpoint/pci-test-howto.rst
@@ -81,8 +81,8 @@ device, the following commands can be used::
# echo 0x104c > functions/pci_epf_test/func1/vendorid
# echo 0xb500 > functions/pci_epf_test/func1/deviceid
- # echo 16 > functions/pci_epf_test/func1/msi_interrupts
- # echo 8 > functions/pci_epf_test/func1/msix_interrupts
+ # echo 32 > functions/pci_epf_test/func1/msi_interrupts
+ # echo 2048 > functions/pci_epf_test/func1/msix_interrupts
Binding pci-epf-test Device to EP Controller
@@ -123,113 +123,98 @@ above::
Using Endpoint Test function Device
-----------------------------------
-pcitest.sh added in tools/pci/ can be used to run all the default PCI endpoint
-tests. To compile this tool the following commands should be used::
+Kselftest added in tools/testing/selftests/pci_endpoint can be used to run all
+the default PCI endpoint tests. To build the Kselftest for PCI endpoint
+subsystem, the following commands should be used::
# cd <kernel-dir>
- # make -C tools/pci
+ # make -C tools/testing/selftests/pci_endpoint
or if you desire to compile and install in your system::
# cd <kernel-dir>
- # make -C tools/pci install
+ # make -C tools/testing/selftests/pci_endpoint INSTALL_PATH=/usr/bin install
-The tool and script will be located in <rootfs>/usr/bin/
+The test will be located in <rootfs>/usr/bin/
-
-pcitest.sh Output
-~~~~~~~~~~~~~~~~~
+Kselftest Output
+~~~~~~~~~~~~~~~~
::
- # pcitest.sh
- BAR tests
-
- BAR0: OKAY
- BAR1: OKAY
- BAR2: OKAY
- BAR3: OKAY
- BAR4: NOT OKAY
- BAR5: NOT OKAY
-
- Interrupt tests
-
- SET IRQ TYPE TO LEGACY: OKAY
- LEGACY IRQ: NOT OKAY
- SET IRQ TYPE TO MSI: OKAY
- MSI1: OKAY
- MSI2: OKAY
- MSI3: OKAY
- MSI4: OKAY
- MSI5: OKAY
- MSI6: OKAY
- MSI7: OKAY
- MSI8: OKAY
- MSI9: OKAY
- MSI10: OKAY
- MSI11: OKAY
- MSI12: OKAY
- MSI13: OKAY
- MSI14: OKAY
- MSI15: OKAY
- MSI16: OKAY
- MSI17: NOT OKAY
- MSI18: NOT OKAY
- MSI19: NOT OKAY
- MSI20: NOT OKAY
- MSI21: NOT OKAY
- MSI22: NOT OKAY
- MSI23: NOT OKAY
- MSI24: NOT OKAY
- MSI25: NOT OKAY
- MSI26: NOT OKAY
- MSI27: NOT OKAY
- MSI28: NOT OKAY
- MSI29: NOT OKAY
- MSI30: NOT OKAY
- MSI31: NOT OKAY
- MSI32: NOT OKAY
- SET IRQ TYPE TO MSI-X: OKAY
- MSI-X1: OKAY
- MSI-X2: OKAY
- MSI-X3: OKAY
- MSI-X4: OKAY
- MSI-X5: OKAY
- MSI-X6: OKAY
- MSI-X7: OKAY
- MSI-X8: OKAY
- MSI-X9: NOT OKAY
- MSI-X10: NOT OKAY
- MSI-X11: NOT OKAY
- MSI-X12: NOT OKAY
- MSI-X13: NOT OKAY
- MSI-X14: NOT OKAY
- MSI-X15: NOT OKAY
- MSI-X16: NOT OKAY
- [...]
- MSI-X2047: NOT OKAY
- MSI-X2048: NOT OKAY
-
- Read Tests
-
- SET IRQ TYPE TO MSI: OKAY
- READ ( 1 bytes): OKAY
- READ ( 1024 bytes): OKAY
- READ ( 1025 bytes): OKAY
- READ (1024000 bytes): OKAY
- READ (1024001 bytes): OKAY
-
- Write Tests
-
- WRITE ( 1 bytes): OKAY
- WRITE ( 1024 bytes): OKAY
- WRITE ( 1025 bytes): OKAY
- WRITE (1024000 bytes): OKAY
- WRITE (1024001 bytes): OKAY
-
- Copy Tests
-
- COPY ( 1 bytes): OKAY
- COPY ( 1024 bytes): OKAY
- COPY ( 1025 bytes): OKAY
- COPY (1024000 bytes): OKAY
- COPY (1024001 bytes): OKAY
+ # pci_endpoint_test
+ TAP version 13
+ 1..16
+ # Starting 16 tests from 9 test cases.
+ # RUN pci_ep_bar.BAR0.BAR_TEST ...
+ # OK pci_ep_bar.BAR0.BAR_TEST
+ ok 1 pci_ep_bar.BAR0.BAR_TEST
+ # RUN pci_ep_bar.BAR1.BAR_TEST ...
+ # OK pci_ep_bar.BAR1.BAR_TEST
+ ok 2 pci_ep_bar.BAR1.BAR_TEST
+ # RUN pci_ep_bar.BAR2.BAR_TEST ...
+ # OK pci_ep_bar.BAR2.BAR_TEST
+ ok 3 pci_ep_bar.BAR2.BAR_TEST
+ # RUN pci_ep_bar.BAR3.BAR_TEST ...
+ # OK pci_ep_bar.BAR3.BAR_TEST
+ ok 4 pci_ep_bar.BAR3.BAR_TEST
+ # RUN pci_ep_bar.BAR4.BAR_TEST ...
+ # OK pci_ep_bar.BAR4.BAR_TEST
+ ok 5 pci_ep_bar.BAR4.BAR_TEST
+ # RUN pci_ep_bar.BAR5.BAR_TEST ...
+ # OK pci_ep_bar.BAR5.BAR_TEST
+ ok 6 pci_ep_bar.BAR5.BAR_TEST
+ # RUN pci_ep_basic.CONSECUTIVE_BAR_TEST ...
+ # OK pci_ep_basic.CONSECUTIVE_BAR_TEST
+ ok 7 pci_ep_basic.CONSECUTIVE_BAR_TEST
+ # RUN pci_ep_basic.LEGACY_IRQ_TEST ...
+ # OK pci_ep_basic.LEGACY_IRQ_TEST
+ ok 8 pci_ep_basic.LEGACY_IRQ_TEST
+ # RUN pci_ep_basic.MSI_TEST ...
+ # OK pci_ep_basic.MSI_TEST
+ ok 9 pci_ep_basic.MSI_TEST
+ # RUN pci_ep_basic.MSIX_TEST ...
+ # OK pci_ep_basic.MSIX_TEST
+ ok 10 pci_ep_basic.MSIX_TEST
+ # RUN pci_ep_data_transfer.memcpy.READ_TEST ...
+ # OK pci_ep_data_transfer.memcpy.READ_TEST
+ ok 11 pci_ep_data_transfer.memcpy.READ_TEST
+ # RUN pci_ep_data_transfer.memcpy.WRITE_TEST ...
+ # OK pci_ep_data_transfer.memcpy.WRITE_TEST
+ ok 12 pci_ep_data_transfer.memcpy.WRITE_TEST
+ # RUN pci_ep_data_transfer.memcpy.COPY_TEST ...
+ # OK pci_ep_data_transfer.memcpy.COPY_TEST
+ ok 13 pci_ep_data_transfer.memcpy.COPY_TEST
+ # RUN pci_ep_data_transfer.dma.READ_TEST ...
+ # OK pci_ep_data_transfer.dma.READ_TEST
+ ok 14 pci_ep_data_transfer.dma.READ_TEST
+ # RUN pci_ep_data_transfer.dma.WRITE_TEST ...
+ # OK pci_ep_data_transfer.dma.WRITE_TEST
+ ok 15 pci_ep_data_transfer.dma.WRITE_TEST
+ # RUN pci_ep_data_transfer.dma.COPY_TEST ...
+ # OK pci_ep_data_transfer.dma.COPY_TEST
+ ok 16 pci_ep_data_transfer.dma.COPY_TEST
+ # PASSED: 16 / 16 tests passed.
+ # Totals: pass:16 fail:0 xfail:0 xpass:0 skip:0 error:0
+
+
+Testcase 16 (pci_ep_data_transfer.dma.COPY_TEST) will fail for most of the DMA
+capable endpoint controllers due to the absence of the MEMCPY over DMA. For such
+controllers, it is advisable to skip this testcase using this
+command::
+
+ # pci_endpoint_test -f pci_ep_bar -f pci_ep_basic -v memcpy -T COPY_TEST -v dma
+
+Kselftest EP Doorbell
+~~~~~~~~~~~~~~~~~~~~~
+
+If the Endpoint MSI controller is used for the doorbell usecase, run below
+command for testing it:
+
+ # pci_endpoint_test -f pcie_ep_doorbell
+
+ # Starting 1 tests from 1 test cases.
+ # RUN pcie_ep_doorbell.DOORBELL_TEST ...
+ # OK pcie_ep_doorbell.DOORBELL_TEST
+ ok 1 pcie_ep_doorbell.DOORBELL_TEST
+ # PASSED: 1 / 1 tests passed.
+ # Totals: pass:1 fail:0 xfail:0 xpass:0 skip:0 error:0
diff --git a/Documentation/PCI/endpoint/pci-vntb-howto.rst b/Documentation/PCI/endpoint/pci-vntb-howto.rst
index 4ab8e4a26d4b..9a7a2f0a6849 100644
--- a/Documentation/PCI/endpoint/pci-vntb-howto.rst
+++ b/Documentation/PCI/endpoint/pci-vntb-howto.rst
@@ -84,17 +84,15 @@ commands can be used::
# echo 0x1957 > functions/pci_epf_vntb/func1/vendorid
# echo 0x0809 > functions/pci_epf_vntb/func1/deviceid
-In order to configure NTB specific attributes, a new sub-directory to func1
-should be created::
-
- # mkdir functions/pci_epf_vntb/func1/pci_epf_vntb.0/
-
-The NTB function driver will populate this directory with various attributes
-that can be configured by the user::
+The PCI endpoint framework also automatically creates a sub-directory in the
+function attribute directory. This sub-directory has the same name as the name
+of the function device and is populated with the following NTB specific
+attributes that can be configured by the user::
# ls functions/pci_epf_vntb/func1/pci_epf_vntb.0/
- db_count mw1 mw2 mw3 mw4 num_mws
- spad_count
+ ctrl_bar db_count mw1_bar mw2_bar mw3_bar mw4_bar spad_count
+ db_bar mw1 mw2 mw3 mw4 num_mws vbus_number
+ vntb_vid vntb_pid
A sample configuration for NTB function is given below::
@@ -103,7 +101,11 @@ A sample configuration for NTB function is given below::
# echo 1 > functions/pci_epf_vntb/func1/pci_epf_vntb.0/num_mws
# echo 0x100000 > functions/pci_epf_vntb/func1/pci_epf_vntb.0/mw1
-A sample configuration for virtual NTB driver for virutal PCI bus::
+By default, each construct is assigned a BAR, as needed and in order.
+Should a specific BAR setup be required by the platform, BAR may be assigned
+to each construct using the related ``XYZ_bar`` entry.
+
+A sample configuration for virtual NTB driver for virtual PCI bus::
# echo 0x1957 > functions/pci_epf_vntb/func1/pci_epf_vntb.0/vntb_vid
# echo 0x080A > functions/pci_epf_vntb/func1/pci_epf_vntb.0/vntb_pid
diff --git a/Documentation/PCI/index.rst b/Documentation/PCI/index.rst
index e73f84aebde3..5d720d2a415e 100644
--- a/Documentation/PCI/index.rst
+++ b/Documentation/PCI/index.rst
@@ -17,4 +17,6 @@ PCI Bus Subsystem
pci-error-recovery
pcieaer-howto
endpoint/index
+ controller/index
boot-interrupts
+ tph
diff --git a/Documentation/PCI/msi-howto.rst b/Documentation/PCI/msi-howto.rst
index 8ae461e97c54..0692c9aec66f 100644
--- a/Documentation/PCI/msi-howto.rst
+++ b/Documentation/PCI/msi-howto.rst
@@ -103,7 +103,7 @@ min_vecs argument set to this limit, and the PCI core will return -ENOSPC
if it can't meet the minimum number of vectors.
The flags argument is used to specify which type of interrupt can be used
-by the device and the driver (PCI_IRQ_LEGACY, PCI_IRQ_MSI, PCI_IRQ_MSIX).
+by the device and the driver (PCI_IRQ_INTX, PCI_IRQ_MSI, PCI_IRQ_MSIX).
A convenient short-hand (PCI_IRQ_ALL_TYPES) is also available to ask for
any possible kind of interrupt. If the PCI_IRQ_AFFINITY flag is set,
pci_alloc_irq_vectors() will spread the interrupts around the available CPUs.
@@ -236,7 +236,7 @@ including a full 'lspci -v' so we can add the quirks to the kernel.
Disabling MSIs below a bridge
-----------------------------
-Some PCI bridges are not able to route MSIs between busses properly.
+Some PCI bridges are not able to route MSIs between buses properly.
In this case, MSIs must be disabled on all devices behind the bridge.
Some bridges allow you to enable MSIs by changing some bits in their
@@ -290,7 +290,7 @@ PCI_IRQ_MSI or PCI_IRQ_MSIX flags.
List of device drivers MSI(-X) APIs
===================================
-The PCI/MSI subystem has a dedicated C file for its exported device driver
+The PCI/MSI subsystem has a dedicated C file for its exported device driver
APIs — `drivers/pci/msi/api.c`. The following functions are exported:
.. kernel-doc:: drivers/pci/msi/api.c
diff --git a/Documentation/PCI/pci-error-recovery.rst b/Documentation/PCI/pci-error-recovery.rst
index 9981d330da8f..43bc4e3665b4 100644
--- a/Documentation/PCI/pci-error-recovery.rst
+++ b/Documentation/PCI/pci-error-recovery.rst
@@ -13,11 +13,11 @@ PCI Error Recovery
Many PCI bus controllers are able to detect a variety of hardware
PCI errors on the bus, such as parity errors on the data and address
buses, as well as SERR and PERR errors. Some of the more advanced
-chipsets are able to deal with these errors; these include PCI-E chipsets,
+chipsets are able to deal with these errors; these include PCIe chipsets,
and the PCI-host bridges found on IBM Power4, Power5 and Power6-based
pSeries boxes. A typical action taken is to disconnect the affected device,
halting all I/O to it. The goal of a disconnection is to avoid system
-corruption; for example, to halt system memory corruption due to DMA's
+corruption; for example, to halt system memory corruption due to DMAs
to "wild" addresses. Typically, a reconnection mechanism is also
offered, so that the affected PCI device(s) are reset and put back
into working condition. The reset phase requires coordination
@@ -108,8 +108,8 @@ A driver does not have to implement all of these callbacks; however,
if it implements any, it must implement error_detected(). If a callback
is not implemented, the corresponding feature is considered unsupported.
For example, if mmio_enabled() and resume() aren't there, then it
-is assumed that the driver is not doing any direct recovery and requires
-a slot reset. Typically a driver will want to know about
+is assumed that the driver does not need these callbacks
+for recovery. Typically a driver will want to know about
a slot_reset().
The actual steps taken by a platform to recover from a PCI error
@@ -122,6 +122,10 @@ A PCI bus error is detected by the PCI hardware. On powerpc, the slot
is isolated, in that all I/O is blocked: all reads return 0xffffffff,
all writes are ignored.
+Similarly, on platforms supporting Downstream Port Containment
+(PCIe r7.0 sec 6.2.11), the link to the sub-hierarchy with the
+faulting device is disabled. Any device in the sub-hierarchy
+becomes inaccessible.
STEP 1: Notification
--------------------
@@ -141,6 +145,9 @@ shouldn't do any new IOs. Called in task context. This is sort of a
All drivers participating in this system must implement this call.
The driver must return one of the following result codes:
+ - PCI_ERS_RESULT_RECOVERED
+ Driver returns this if it thinks the device is usable despite
+ the error and does not need further intervention.
- PCI_ERS_RESULT_CAN_RECOVER
Driver returns this if it thinks it might be able to recover
the HW by just banging IOs or if it wants to be given
@@ -178,9 +185,9 @@ is STEP 6 (Permanent Failure).
complex and not worth implementing.
The current powerpc implementation doesn't much care if the device
- attempts I/O at this point, or not. I/O's will fail, returning
+ attempts I/O at this point, or not. I/Os will fail, returning
a value of 0xff on read, and writes will be dropped. If more than
- EEH_MAX_FAILS I/O's are attempted to a frozen adapter, EEH
+ EEH_MAX_FAILS I/Os are attempted to a frozen adapter, EEH
assumes that the device driver has gone into an infinite loop
and prints an error to syslog. A reboot is then required to
get the device working again.
@@ -199,12 +206,30 @@ reset or some such, but not restart operations. This callback is made if
all drivers on a segment agree that they can try to recover and if no automatic
link reset was performed by the HW. If the platform can't just re-enable IOs
without a slot reset or a link reset, it will not call this callback, and
-instead will have gone directly to STEP 3 (Link Reset) or STEP 4 (Slot Reset)
+instead will have gone directly to STEP 3 (Link Reset) or STEP 4 (Slot Reset).
+
+.. note::
+
+ On platforms supporting Advanced Error Reporting (PCIe r7.0 sec 6.2),
+ the faulting device may already be accessible in STEP 1 (Notification).
+ Drivers should nevertheless defer accesses to STEP 2 (MMIO Enabled)
+ to be compatible with EEH on powerpc and with s390 (where devices are
+ inaccessible until STEP 2).
+
+ On platforms supporting Downstream Port Containment, the link to the
+ sub-hierarchy with the faulting device is re-enabled in STEP 3 (Link
+ Reset). Hence devices in the sub-hierarchy are inaccessible until
+ STEP 4 (Slot Reset).
+
+ For errors such as Surprise Down (PCIe r7.0 sec 6.2.7), the device
+ may not even be accessible in STEP 4 (Slot Reset). Drivers can detect
+ accessibility by checking whether reads from the device return all 1's
+ (PCI_POSSIBLE_ERROR()).
.. note::
The following is proposed; no platform implements this yet:
- Proposal: All I/O's should be done _synchronously_ from within
+ Proposal: All I/Os should be done _synchronously_ from within
this callback, errors triggered by them will be returned via
the normal pci_check_whatever() API, no new error_detected()
callback will be issued due to an error happening here. However,
@@ -234,14 +259,14 @@ The driver should return one of the following result codes:
The next step taken depends on the results returned by the drivers.
If all drivers returned PCI_ERS_RESULT_RECOVERED, then the platform
-proceeds to either STEP3 (Link Reset) or to STEP 5 (Resume Operations).
+proceeds to either STEP 3 (Link Reset) or to STEP 5 (Resume Operations).
If any driver returned PCI_ERS_RESULT_NEED_RESET, then the platform
proceeds to STEP 4 (Slot Reset)
STEP 3: Link Reset
------------------
-The platform resets the link. This is a PCI-Express specific step
+The platform resets the link. This is a PCIe specific step
and is done whenever a fatal error has been detected that can be
"solved" by resetting the link.
@@ -258,18 +283,18 @@ Powerpc platforms implement two levels of slot reset:
soft reset(default) and fundamental(optional) reset.
Powerpc soft reset consists of asserting the adapter #RST line and then
-restoring the PCI BAR's and PCI configuration header to a state
+restoring the PCI BARs and PCI configuration header to a state
that is equivalent to what it would be after a fresh system
power-on followed by power-on BIOS/system firmware initialization.
Soft reset is also known as hot-reset.
-Powerpc fundamental reset is supported by PCI Express cards only
+Powerpc fundamental reset is supported by PCIe cards only
and results in device's state machines, hardware logic, port states and
configuration registers to initialize to their default conditions.
For most PCI devices, a soft reset will be sufficient for recovery.
Optional fundamental reset is provided to support a limited number
-of PCI Express devices for which a soft reset is not sufficient
+of PCIe devices for which a soft reset is not sufficient
for recovery.
If the platform supports PCI hotplug, then the reset might be
@@ -301,6 +326,21 @@ be recovered, there is nothing more that can be done; the platform
will typically report a "permanent failure" in such a case. The
device will be considered "dead" in this case.
+Drivers typically need to call pci_restore_state() after reset to
+re-initialize the device's config space registers and thereby
+bring it from D0\ :sub:`uninitialized` into D0\ :sub:`active` state
+(PCIe r7.0 sec 5.3.1.1). The PCI core invokes pci_save_state()
+on enumeration after initializing config space to ensure that a
+saved state is available for subsequent error recovery.
+Drivers which modify config space on probe may need to invoke
+pci_save_state() afterwards to record those changes for later
+error recovery. When going into system suspend, pci_save_state()
+is called for every PCI device and that state will be restored
+not only on resume, but also on any subsequent error recovery.
+In the unlikely event that the saved state recorded on suspend
+is unsuitable for error recovery, drivers should call
+pci_save_state() on resume.
+
Drivers for multi-function cards will need to coordinate among
themselves as to which driver instance will perform any "one-shot"
or global device initialization. For example, the Symbios sym53cxx2
@@ -313,7 +353,7 @@ Result codes:
- PCI_ERS_RESULT_DISCONNECT
Same as above.
-Drivers for PCI Express cards that require a fundamental reset must
+Drivers for PCIe cards that require a fundamental reset must
set the needs_freset bit in the pci_dev structure in their probe function.
For example, the QLogic qla2xxx driver sets the needs_freset bit for certain
PCI card types::
@@ -362,9 +402,9 @@ permanent failure in some way. If the device is hotplug-capable,
the operator will probably want to remove and replace the device.
Note, however, not all failures are truly "permanent". Some are
caused by over-heating, some by a poorly seated card. Many
-PCI error events are caused by software bugs, e.g. DMA's to
+PCI error events are caused by software bugs, e.g. DMAs to
wild addresses or bogus split transactions due to programming
-errors. See the discussion in powerpc/eeh-pci-error-recovery.txt
+errors. See the discussion in Documentation/arch/powerpc/eeh-pci-error-recovery.rst
for additional detail on real-life experience of the causes of
software errors.
@@ -404,7 +444,7 @@ That is, the recovery API only requires that:
.. note::
Implementation details for the powerpc platform are discussed in
- the file Documentation/powerpc/eeh-pci-error-recovery.rst
+ the file Documentation/arch/powerpc/eeh-pci-error-recovery.rst
As of this writing, there is a growing list of device drivers with
patches implementing error recovery. Not all of these patches are in
diff --git a/Documentation/PCI/pci.rst b/Documentation/PCI/pci.rst
index cced568d78e9..f4d2662871ab 100644
--- a/Documentation/PCI/pci.rst
+++ b/Documentation/PCI/pci.rst
@@ -52,7 +52,7 @@ driver generally needs to perform the following initialization:
- Enable DMA/processing engines
When done using the device, and perhaps the module needs to be unloaded,
-the driver needs to take the follow steps:
+the driver needs to take the following steps:
- Disable the device from generating IRQs
- Release the IRQ (free_irq())
@@ -335,7 +335,7 @@ causes the PCI support to program CPU vector data into the PCI device
capability registers. Many architectures, chip-sets, or BIOSes do NOT
support MSI or MSI-X and a call to pci_alloc_irq_vectors with just
the PCI_IRQ_MSI and PCI_IRQ_MSIX flags will fail, so try to always
-specify PCI_IRQ_LEGACY as well.
+specify PCI_IRQ_INTX as well.
Drivers that have different interrupt handlers for MSI/MSI-X and
legacy INTx should chose the right one based on the msi_enabled
diff --git a/Documentation/PCI/pcieaer-howto.rst b/Documentation/PCI/pcieaer-howto.rst
index 0b36b9ebfa4b..3210c4792978 100644
--- a/Documentation/PCI/pcieaer-howto.rst
+++ b/Documentation/PCI/pcieaer-howto.rst
@@ -16,264 +16,221 @@ Overview
About this guide
----------------
-This guide describes the basics of the PCI Express Advanced Error
+This guide describes the basics of the PCI Express (PCIe) Advanced Error
Reporting (AER) driver and provides information on how to use it, as
-well as how to enable the drivers of endpoint devices to conform with
-PCI Express AER driver.
+well as how to enable the drivers of Endpoint devices to conform with
+the PCIe AER driver.
-What is the PCI Express AER Driver?
------------------------------------
+What is the PCIe AER Driver?
+----------------------------
-PCI Express error signaling can occur on the PCI Express link itself
-or on behalf of transactions initiated on the link. PCI Express
+PCIe error signaling can occur on the PCIe link itself
+or on behalf of transactions initiated on the link. PCIe
defines two error reporting paradigms: the baseline capability and
the Advanced Error Reporting capability. The baseline capability is
-required of all PCI Express components providing a minimum defined
+required of all PCIe components providing a minimum defined
set of error reporting requirements. Advanced Error Reporting
-capability is implemented with a PCI Express advanced error reporting
+capability is implemented with a PCIe Advanced Error Reporting
extended capability structure providing more robust error reporting.
-The PCI Express AER driver provides the infrastructure to support PCI
-Express Advanced Error Reporting capability. The PCI Express AER
-driver provides three basic functions:
+The PCIe AER driver provides the infrastructure to support PCIe Advanced
+Error Reporting capability. The PCIe AER driver provides three basic
+functions:
- Gathers the comprehensive error information if errors occurred.
- Reports error to the users.
- Performs error recovery actions.
-AER driver only attaches root ports which support PCI-Express AER
-capability.
+The AER driver only attaches to Root Ports and RCECs that support the PCIe
+AER capability.
User Guide
==========
-Include the PCI Express AER Root Driver into the Linux Kernel
--------------------------------------------------------------
+Include the PCIe AER Root Driver into the Linux Kernel
+------------------------------------------------------
-The PCI Express AER Root driver is a Root Port service driver attached
-to the PCI Express Port Bus driver. If a user wants to use it, the driver
-has to be compiled. Option CONFIG_PCIEAER supports this capability. It
-depends on CONFIG_PCIEPORTBUS, so pls. set CONFIG_PCIEPORTBUS=y and
-CONFIG_PCIEAER = y.
+The PCIe AER driver is a Root Port service driver attached
+via the PCIe Port Bus driver. If a user wants to use it, the driver
+must be compiled. It is enabled with CONFIG_PCIEAER, which
+depends on CONFIG_PCIEPORTBUS.
-Load PCI Express AER Root Driver
---------------------------------
+Load PCIe AER Root Driver
+-------------------------
Some systems have AER support in firmware. Enabling Linux AER support at
-the same time the firmware handles AER may result in unpredictable
+the same time the firmware handles AER would result in unpredictable
behavior. Therefore, Linux does not handle AER events unless the firmware
-grants AER control to the OS via the ACPI _OSC method. See the PCI FW 3.0
+grants AER control to the OS via the ACPI _OSC method. See the PCI Firmware
Specification for details regarding _OSC usage.
AER error output
----------------
When a PCIe AER error is captured, an error message will be output to
-console. If it's a correctable error, it is output as a warning.
+console. If it's a correctable error, it is output as a warning message.
Otherwise, it is printed as an error. So users could choose different
log level to filter out correctable error messages.
Below shows an example::
- 0000:50:00.0: PCIe Bus Error: severity=Uncorrected (Fatal), type=Transaction Layer, id=0500(Requester ID)
+ 0000:50:00.0: PCIe Bus Error: severity=Uncorrectable (Fatal), type=Transaction Layer, (Requester ID)
0000:50:00.0: device [8086:0329] error status/mask=00100000/00000000
- 0000:50:00.0: [20] Unsupported Request (First)
- 0000:50:00.0: TLP Header: 04000001 00200a03 05010000 00050100
+ 0000:50:00.0: [20] UnsupReq (First)
+ 0000:50:00.0: TLP Header: 0x04000001 0x00200a03 0x05010000 0x00050100
+
+In the example, 'Requester ID' means the ID of the device that sent
+the error message to the Root Port. Please refer to PCIe specs for other
+fields.
+
+AER Ratelimits
+--------------
+
+Since error messages can be generated for each transaction, we may see
+large volumes of errors reported. To prevent spammy devices from flooding
+the console/stalling execution, messages are throttled by device and error
+type (correctable vs. non-fatal uncorrectable). Fatal errors, including
+DPC errors, are not ratelimited.
+
+AER uses the default ratelimit of DEFAULT_RATELIMIT_BURST (10 events) over
+DEFAULT_RATELIMIT_INTERVAL (5 seconds).
-In the example, 'Requester ID' means the ID of the device who sends
-the error message to root port. Pls. refer to pci express specs for
-other fields.
+Ratelimits are exposed in the form of sysfs attributes and configurable.
+See Documentation/ABI/testing/sysfs-bus-pci-devices-aer.
AER Statistics / Counters
-------------------------
When PCIe AER errors are captured, the counters / statistics are also exposed
in the form of sysfs attributes which are documented at
-Documentation/ABI/testing/sysfs-bus-pci-devices-aer_stats
+Documentation/ABI/testing/sysfs-bus-pci-devices-aer.
Developer Guide
===============
-To enable AER aware support requires a software driver to configure
-the AER capability structure within its device and to provide callbacks.
+To enable error recovery, a software driver must provide callbacks.
-To support AER better, developers need understand how AER does work
-firstly.
+To support AER better, developers need to understand how AER works.
-PCI Express errors are classified into two types: correctable errors
-and uncorrectable errors. This classification is based on the impacts
+PCIe errors are classified into two types: correctable errors
+and uncorrectable errors. This classification is based on the impact
of those errors, which may result in degraded performance or function
failure.
Correctable errors pose no impacts on the functionality of the
-interface. The PCI Express protocol can recover without any software
+interface. The PCIe protocol can recover without any software
intervention or any loss of data. These errors are detected and
-corrected by hardware. Unlike correctable errors, uncorrectable
+corrected by hardware.
+
+Unlike correctable errors, uncorrectable
errors impact functionality of the interface. Uncorrectable errors
-can cause a particular transaction or a particular PCI Express link
+can cause a particular transaction or a particular PCIe link
to be unreliable. Depending on those error conditions, uncorrectable
errors are further classified into non-fatal errors and fatal errors.
Non-fatal errors cause the particular transaction to be unreliable,
-but the PCI Express link itself is fully functional. Fatal errors, on
+but the PCIe link itself is fully functional. Fatal errors, on
the other hand, cause the link to be unreliable.
-When AER is enabled, a PCI Express device will automatically send an
-error message to the PCIe root port above it when the device captures
+When PCIe error reporting is enabled, a device will automatically send an
+error message to the Root Port above it when it captures
an error. The Root Port, upon receiving an error reporting message,
-internally processes and logs the error message in its PCI Express
-capability structure. Error information being logged includes storing
-the error reporting agent's requestor ID into the Error Source
+internally processes and logs the error message in its AER
+Capability structure. Error information being logged includes storing
+the error reporting agent's Requester ID into the Error Source
Identification Registers and setting the error bits of the Root Error
-Status Register accordingly. If AER error reporting is enabled in Root
-Error Command Register, the Root Port generates an interrupt if an
+Status Register accordingly. If AER error reporting is enabled in the Root
+Error Command Register, the Root Port generates an interrupt when an
error is detected.
-Note that the errors as described above are related to the PCI Express
+Note that the errors as described above are related to the PCIe
hierarchy and links. These errors do not include any device specific
errors because device specific errors will still get sent directly to
the device driver.
-Configure the AER capability structure
---------------------------------------
-
-AER aware drivers of PCI Express component need change the device
-control registers to enable AER. They also could change AER registers,
-including mask and severity registers. Helper function
-pci_enable_pcie_error_reporting could be used to enable AER. See
-section 3.3.
-
Provide callbacks
-----------------
-callback reset_link to reset pci express link
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-This callback is used to reset the pci express physical link when a
-fatal error happens. The root port aer service driver provides a
-default reset_link function, but different upstream ports might
-have different specifications to reset pci express link, so all
-upstream ports should provide their own reset_link functions.
-
-Section 3.2.2.2 provides more detailed info on when to call
-reset_link.
-
PCI error-recovery callbacks
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-The PCI Express AER Root driver uses error callbacks to coordinate
+The PCIe AER Root driver uses error callbacks to coordinate
with downstream device drivers associated with a hierarchy in question
when performing error recovery actions.
Data struct pci_driver has a pointer, err_handler, to point to
pci_error_handlers who consists of a couple of callback function
-pointers. AER driver follows the rules defined in
-pci-error-recovery.txt except pci express specific parts (e.g.
-reset_link). Pls. refer to pci-error-recovery.txt for detailed
+pointers. The AER driver follows the rules defined in
+pci-error-recovery.rst except PCIe-specific parts (see
+below). Please refer to pci-error-recovery.rst for detailed
definitions of the callbacks.
-Below sections specify when to call the error callback functions.
+The sections below specify when to call the error callback functions.
Correctable errors
~~~~~~~~~~~~~~~~~~
Correctable errors pose no impacts on the functionality of
-the interface. The PCI Express protocol can recover without any
+the interface. The PCIe protocol can recover without any
software intervention or any loss of data. These errors do not
require any recovery actions. The AER driver clears the device's
correctable error status register accordingly and logs these errors.
-Non-correctable (non-fatal and fatal) errors
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+Uncorrectable (non-fatal and fatal) errors
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+The AER driver performs a Secondary Bus Reset to recover from
+uncorrectable errors. The reset is applied at the port above
+the originating device: If the originating device is an Endpoint,
+only the Endpoint is reset. If on the other hand the originating
+device has subordinate devices, those are all affected by the
+reset as well.
+
+If the originating device is a Root Complex Integrated Endpoint,
+there's no port above where a Secondary Bus Reset could be applied.
+In this case, the AER driver instead applies a Function Level Reset.
-If an error message indicates a non-fatal error, performing link reset
+If an error message indicates a non-fatal error, performing a reset
at upstream is not required. The AER driver calls error_detected(dev,
pci_channel_io_normal) to all drivers associated within a hierarchy in
-question. for example::
+question. For example::
- EndPoint<==>DownstreamPort B<==>UpstreamPort A<==>RootPort
+ Endpoint <==> Downstream Port B <==> Upstream Port A <==> Root Port
-If Upstream port A captures an AER error, the hierarchy consists of
-Downstream port B and EndPoint.
+If Upstream Port A captures an AER error, the hierarchy consists of
+Downstream Port B and Endpoint.
A driver may return PCI_ERS_RESULT_CAN_RECOVER,
PCI_ERS_RESULT_DISCONNECT, or PCI_ERS_RESULT_NEED_RESET, depending on
-whether it can recover or the AER driver calls mmio_enabled as next.
+whether it can recover without a reset, considers the device unrecoverable
+or needs a reset for recovery. If all affected drivers agree that they can
+recover without a reset, it is skipped. Should one driver request a reset,
+it overrides all other drivers.
If an error message indicates a fatal error, kernel will broadcast
error_detected(dev, pci_channel_io_frozen) to all drivers within
-a hierarchy in question. Then, performing link reset at upstream is
-necessary. As different kinds of devices might use different approaches
-to reset link, AER port service driver is required to provide the
-function to reset link via callback parameter of pcie_do_recovery()
-function. If reset_link is not NULL, recovery function will use it
-to reset the link. If error_detected returns PCI_ERS_RESULT_CAN_RECOVER
-and reset_link returns PCI_ERS_RESULT_RECOVERED, the error handling goes
-to mmio_enabled.
-
-helper functions
-----------------
-::
-
- int pci_enable_pcie_error_reporting(struct pci_dev *dev);
-
-pci_enable_pcie_error_reporting enables the device to send error
-messages to root port when an error is detected. Note that devices
-don't enable the error reporting by default, so device drivers need
-call this function to enable it.
-
-::
+a hierarchy in question. Then, performing a reset at upstream is
+necessary. If error_detected returns PCI_ERS_RESULT_CAN_RECOVER
+to indicate that recovery without a reset is possible, the error
+handling goes to mmio_enabled, but afterwards a reset is still
+performed.
- int pci_disable_pcie_error_reporting(struct pci_dev *dev);
+In other words, for non-fatal errors, drivers may opt in to a reset.
+But for fatal errors, they cannot opt out of a reset, based on the
+assumption that the link is unreliable.
-pci_disable_pcie_error_reporting disables the device to send error
-messages to root port when an error is detected.
-
-::
-
- int pci_aer_clear_nonfatal_status(struct pci_dev *dev);`
-
-pci_aer_clear_nonfatal_status clears non-fatal errors in the uncorrectable
-error status register.
-
-Frequent Asked Questions
-------------------------
+Frequently Asked Questions
+--------------------------
Q:
- What happens if a PCI Express device driver does not provide an
+ What happens if a PCIe device driver does not provide an
error recovery handler (pci_driver->err_handler is equal to NULL)?
A:
- The devices attached with the driver won't be recovered. If the
- error is fatal, kernel will print out warning messages. Please refer
- to section 3 for more information.
-
-Q:
- What happens if an upstream port service driver does not provide
- callback reset_link?
-
-A:
- Fatal error recovery will fail if the errors are reported by the
- upstream ports who are attached by the service driver.
-
-Q:
- How does this infrastructure deal with driver that is not PCI
- Express aware?
-
-A:
- This infrastructure calls the error callback functions of the
- driver when an error happens. But if the driver is not aware of
- PCI Express, the device might not report its own errors to root
- port.
-
-Q:
- What modifications will that driver need to make it compatible
- with the PCI Express AER Root driver?
-
-A:
- It could call the helper functions to enable AER in devices and
- cleanup uncorrectable status register. Pls. refer to section 3.3.
+ The devices attached with the driver won't be recovered.
+ The kernel will print out informational messages to identify
+ unrecoverable devices.
Software error injection
@@ -294,7 +251,7 @@ After reboot with new kernel or insert the module, a device file named
Then, you need a user space tool named aer-inject, which can be gotten
from:
- https://git.kernel.org/cgit/linux/kernel/git/gong.chen/aer-inject.git/
+ https://github.com/intel/aer-inject.git
-More information about aer-inject can be found in the document comes
-with its source code.
+More information about aer-inject can be found in the document in
+its source code.
diff --git a/Documentation/PCI/pciebus-howto.rst b/Documentation/PCI/pciebus-howto.rst
index f882ff62c51f..375d9ce171f6 100644
--- a/Documentation/PCI/pciebus-howto.rst
+++ b/Documentation/PCI/pciebus-howto.rst
@@ -139,7 +139,7 @@ driver data structure.
static struct pcie_port_service_driver root_aerdrv = {
.name = (char *)device_name,
- .id_table = &service_id[0],
+ .id_table = service_id,
.probe = aerdrv_load,
.remove = aerdrv_unload,
@@ -213,8 +213,16 @@ PCI Config Registers
--------------------
Each service driver runs its PCI config operations on its own
-capability structure except the PCI Express capability structure, in
-which Root Control register and Device Control register are shared
-between PME and AER. This patch assumes that all service drivers
-will be well behaved and not overwrite other service driver's
-configuration settings.
+capability structure except the PCI Express capability structure,
+that is shared between many drivers including the service drivers.
+RMW Capability accessors (pcie_capability_clear_and_set_word(),
+pcie_capability_set_word(), and pcie_capability_clear_word()) protect
+a selected set of PCI Express Capability Registers:
+
+* Link Control Register
+* Root Control Register
+* Link Control 2 Register
+
+Any change to those registers should be performed using RMW accessors to
+avoid problems due to concurrent updates. For the up-to-date list of
+protected registers, see pcie_capability_clear_and_set_word().
diff --git a/Documentation/PCI/tph.rst b/Documentation/PCI/tph.rst
new file mode 100644
index 000000000000..e8993be64fd6
--- /dev/null
+++ b/Documentation/PCI/tph.rst
@@ -0,0 +1,132 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+
+===========
+TPH Support
+===========
+
+:Copyright: 2024 Advanced Micro Devices, Inc.
+:Authors: - Eric van Tassell <eric.vantassell@amd.com>
+ - Wei Huang <wei.huang2@amd.com>
+
+
+Overview
+========
+
+TPH (TLP Processing Hints) is a PCIe feature that allows endpoint devices
+to provide optimization hints for requests that target memory space.
+These hints, in a format called Steering Tags (STs), are embedded in the
+requester's TLP headers, enabling the system hardware, such as the Root
+Complex, to better manage platform resources for these requests.
+
+For example, on platforms with TPH-based direct data cache injection
+support, an endpoint device can include appropriate STs in its DMA
+traffic to specify which cache the data should be written to. This allows
+the CPU core to have a higher probability of getting data from cache,
+potentially improving performance and reducing latency in data
+processing.
+
+
+How to Use TPH
+==============
+
+TPH is presented as an optional extended capability in PCIe. The Linux
+kernel handles TPH discovery during boot, but it is up to the device
+driver to request TPH enablement if it is to be utilized. Once enabled,
+the driver uses the provided API to obtain the Steering Tag for the
+target memory and to program the ST into the device's ST table.
+
+Enable TPH support in Linux
+---------------------------
+
+To support TPH, the kernel must be built with the CONFIG_PCIE_TPH option
+enabled.
+
+Manage TPH
+----------
+
+To enable TPH for a device, use the following function::
+
+ int pcie_enable_tph(struct pci_dev *pdev, int mode);
+
+This function enables TPH support for device with a specific ST mode.
+Current supported modes include:
+
+ * PCI_TPH_ST_NS_MODE - NO ST Mode
+ * PCI_TPH_ST_IV_MODE - Interrupt Vector Mode
+ * PCI_TPH_ST_DS_MODE - Device Specific Mode
+
+`pcie_enable_tph()` checks whether the requested mode is actually
+supported by the device before enabling. The device driver can figure out
+which TPH mode is supported and can be properly enabled based on the
+return value of `pcie_enable_tph()`.
+
+To disable TPH, use the following function::
+
+ void pcie_disable_tph(struct pci_dev *pdev);
+
+Manage ST
+---------
+
+Steering Tags are platform specific. PCIe spec does not specify where STs
+are from. Instead PCI Firmware Specification defines an ACPI _DSM method
+(see the `Revised _DSM for Cache Locality TPH Features ECN
+<https://members.pcisig.com/wg/PCI-SIG/document/15470>`_) for retrieving
+STs for a target memory of various properties. This method is what is
+supported in this implementation.
+
+To retrieve a Steering Tag for a target memory associated with a specific
+CPU, use the following function::
+
+ int pcie_tph_get_cpu_st(struct pci_dev *pdev, enum tph_mem_type type,
+ unsigned int cpu_uid, u16 *tag);
+
+The `type` argument is used to specify the memory type, either volatile
+or persistent, of the target memory. The `cpu_uid` argument specifies the
+CPU where the memory is associated to.
+
+After the ST value is retrieved, the device driver can use the following
+function to write the ST into the device::
+
+ int pcie_tph_set_st_entry(struct pci_dev *pdev, unsigned int index,
+ u16 tag);
+
+The `index` argument is the ST table entry index the ST tag will be
+written into. `pcie_tph_set_st_entry()` will figure out the proper
+location of ST table, either in the MSI-X table or in the TPH Extended
+Capability space, and write the Steering Tag into the ST entry pointed by
+the `index` argument.
+
+It is completely up to the driver to decide how to use these TPH
+functions. For example a network device driver can use the TPH APIs above
+to update the Steering Tag when interrupt affinity of a RX/TX queue has
+been changed. Here is a sample code for IRQ affinity notifier:
+
+.. code-block:: c
+
+ static void irq_affinity_notified(struct irq_affinity_notify *notify,
+ const cpumask_t *mask)
+ {
+ struct drv_irq *irq;
+ unsigned int cpu_id;
+ u16 tag;
+
+ irq = container_of(notify, struct drv_irq, affinity_notify);
+ cpumask_copy(irq->cpu_mask, mask);
+
+ /* Pick a right CPU as the target - here is just an example */
+ cpu_id = cpumask_first(irq->cpu_mask);
+
+ if (pcie_tph_get_cpu_st(irq->pdev, TPH_MEM_TYPE_VM, cpu_id,
+ &tag))
+ return;
+
+ if (pcie_tph_set_st_entry(irq->pdev, irq->msix_nr, tag))
+ return;
+ }
+
+Disable TPH system-wide
+-----------------------
+
+There is a kernel command line option available to control TPH feature:
+ * "notph": TPH will be disabled for all endpoint devices.
diff --git a/Documentation/RCU/Design/Data-Structures/Data-Structures.rst b/Documentation/RCU/Design/Data-Structures/Data-Structures.rst
index b34990c7c377..1b0aad184dd7 100644
--- a/Documentation/RCU/Design/Data-Structures/Data-Structures.rst
+++ b/Documentation/RCU/Design/Data-Structures/Data-Structures.rst
@@ -286,6 +286,39 @@ in order to detect the beginnings and ends of grace periods in a
distributed fashion. The values flow from ``rcu_state`` to ``rcu_node``
(down the tree from the root to the leaves) to ``rcu_data``.
++-----------------------------------------------------------------------+
+| **Quick Quiz**: |
++-----------------------------------------------------------------------+
+| Given that the root rcu_node structure has a gp_seq field, |
+| why does RCU maintain a separate gp_seq in the rcu_state structure? |
+| Why not just use the root rcu_node's gp_seq as the official record |
+| and update it directly when starting a new grace period? |
++-----------------------------------------------------------------------+
+| **Answer**: |
++-----------------------------------------------------------------------+
+| On single-node RCU trees (where the root node is also a leaf), |
+| updating the root node's gp_seq immediately would create unnecessary |
+| lock contention. Here's why: |
+| |
+| If we did rcu_seq_start() directly on the root node's gp_seq: |
+| |
+| 1. All CPUs would immediately see their node's gp_seq from their rdp's|
+| gp_seq, in rcu_pending(). They would all then invoke the RCU-core. |
+| 2. Which calls note_gp_changes() and try to acquire the node lock. |
+| 3. But rnp->qsmask isn't initialized yet (happens later in |
+| rcu_gp_init()) |
+| 4. So each CPU would acquire the lock, find it can't determine if it |
+| needs to report quiescent state (no qsmask), update rdp->gp_seq, |
+| and release the lock. |
+| 5. Result: Lots of lock acquisitions with no grace period progress |
+| |
+| By having a separate rcu_state.gp_seq, we can increment the official |
+| grace period counter without immediately affecting what CPUs see in |
+| their nodes. The hierarchical propagation in rcu_gp_init() then |
+| updates the root node's gp_seq and qsmask together under the same lock|
+| acquisition, avoiding this useless contention. |
++-----------------------------------------------------------------------+
+
Miscellaneous
'''''''''''''
@@ -921,10 +954,10 @@ This portion of the ``rcu_data`` structure is declared as follows:
::
- 1 int dynticks_snap;
+ 1 int watching_snap;
2 unsigned long dynticks_fqs;
-The ``->dynticks_snap`` field is used to take a snapshot of the
+The ``->watching_snap`` field is used to take a snapshot of the
corresponding CPU's dyntick-idle state when forcing quiescent states,
and is therefore accessed from other CPUs. Finally, the
``->dynticks_fqs`` field is used to count the number of times this CPU
@@ -935,8 +968,8 @@ This portion of the rcu_data structure is declared as follows:
::
- 1 long dynticks_nesting;
- 2 long dynticks_nmi_nesting;
+ 1 long nesting;
+ 2 long nmi_nesting;
3 atomic_t dynticks;
4 bool rcu_need_heavy_qs;
5 bool rcu_urgent_qs;
@@ -945,14 +978,14 @@ These fields in the rcu_data structure maintain the per-CPU dyntick-idle
state for the corresponding CPU. The fields may be accessed only from
the corresponding CPU (and from tracing) unless otherwise stated.
-The ``->dynticks_nesting`` field counts the nesting depth of process
+The ``->nesting`` field counts the nesting depth of process
execution, so that in normal circumstances this counter has value zero
or one. NMIs, irqs, and tracers are counted by the
-``->dynticks_nmi_nesting`` field. Because NMIs cannot be masked, changes
+``->nmi_nesting`` field. Because NMIs cannot be masked, changes
to this variable have to be undertaken carefully using an algorithm
provided by Andy Lutomirski. The initial transition from idle adds one,
and nested transitions add two, so that a nesting level of five is
-represented by a ``->dynticks_nmi_nesting`` value of nine. This counter
+represented by a ``->nmi_nesting`` value of nine. This counter
can therefore be thought of as counting the number of reasons why this
CPU cannot be permitted to enter dyntick-idle mode, aside from
process-level transitions.
@@ -960,12 +993,12 @@ process-level transitions.
However, it turns out that when running in non-idle kernel context, the
Linux kernel is fully capable of entering interrupt handlers that never
exit and perhaps also vice versa. Therefore, whenever the
-``->dynticks_nesting`` field is incremented up from zero, the
-``->dynticks_nmi_nesting`` field is set to a large positive number, and
-whenever the ``->dynticks_nesting`` field is decremented down to zero,
-the ``->dynticks_nmi_nesting`` field is set to zero. Assuming that
+``->nesting`` field is incremented up from zero, the
+``->nmi_nesting`` field is set to a large positive number, and
+whenever the ``->nesting`` field is decremented down to zero,
+the ``->nmi_nesting`` field is set to zero. Assuming that
the number of misnested interrupts is not sufficient to overflow the
-counter, this approach corrects the ``->dynticks_nmi_nesting`` field
+counter, this approach corrects the ``->nmi_nesting`` field
every time the corresponding CPU enters the idle loop from process
context.
@@ -992,8 +1025,8 @@ code.
+-----------------------------------------------------------------------+
| **Quick Quiz**: |
+-----------------------------------------------------------------------+
-| Why not simply combine the ``->dynticks_nesting`` and |
-| ``->dynticks_nmi_nesting`` counters into a single counter that just |
+| Why not simply combine the ``->nesting`` and |
+| ``->nmi_nesting`` counters into a single counter that just |
| counts the number of reasons that the corresponding CPU is non-idle? |
+-----------------------------------------------------------------------+
| **Answer**: |
diff --git a/Documentation/RCU/Design/Expedited-Grace-Periods/Expedited-Grace-Periods.rst b/Documentation/RCU/Design/Expedited-Grace-Periods/Expedited-Grace-Periods.rst
index 93d899d53258..414f8a2012d6 100644
--- a/Documentation/RCU/Design/Expedited-Grace-Periods/Expedited-Grace-Periods.rst
+++ b/Documentation/RCU/Design/Expedited-Grace-Periods/Expedited-Grace-Periods.rst
@@ -181,7 +181,7 @@ operations is carried out at several levels:
of this wait (or series of waits, as the case may be) is to permit a
concurrent CPU-hotplug operation to complete.
#. In the case of RCU-sched, one of the last acts of an outgoing CPU is
- to invoke ``rcu_report_dead()``, which reports a quiescent state for
+ to invoke ``rcutree_report_cpu_dead()``, which reports a quiescent state for
that CPU. However, this is likely paranoia-induced redundancy.
+-----------------------------------------------------------------------+
diff --git a/Documentation/RCU/Design/Memory-Ordering/Tree-RCU-Memory-Ordering.rst b/Documentation/RCU/Design/Memory-Ordering/Tree-RCU-Memory-Ordering.rst
index 5750f125361b..1a5ff1a9f02e 100644
--- a/Documentation/RCU/Design/Memory-Ordering/Tree-RCU-Memory-Ordering.rst
+++ b/Documentation/RCU/Design/Memory-Ordering/Tree-RCU-Memory-Ordering.rst
@@ -147,11 +147,11 @@ RCU read-side critical sections preceding and following the current
idle sojourn.
This case is handled by calls to the strongly ordered
``atomic_add_return()`` read-modify-write atomic operation that
-is invoked within ``rcu_dynticks_eqs_enter()`` at idle-entry
-time and within ``rcu_dynticks_eqs_exit()`` at idle-exit time.
-The grace-period kthread invokes ``rcu_dynticks_snap()`` and
-``rcu_dynticks_in_eqs_since()`` (both of which invoke
-an ``atomic_add_return()`` of zero) to detect idle CPUs.
+is invoked within ``ct_kernel_exit_state()`` at idle-entry
+time and within ``ct_kernel_enter_state()`` at idle-exit time.
+The grace-period kthread invokes first ``ct_rcu_watching_cpu_acquire()``
+(preceded by a full memory barrier) and ``rcu_watching_snap_stopped_since()``
+(both of which rely on acquire semantics) to detect idle CPUs.
+-----------------------------------------------------------------------+
| **Quick Quiz**: |
diff --git a/Documentation/RCU/Design/Memory-Ordering/TreeRCU-callback-registry.svg b/Documentation/RCU/Design/Memory-Ordering/TreeRCU-callback-registry.svg
index 7ac6f9269806..63eff867175a 100644
--- a/Documentation/RCU/Design/Memory-Ordering/TreeRCU-callback-registry.svg
+++ b/Documentation/RCU/Design/Memory-Ordering/TreeRCU-callback-registry.svg
@@ -566,15 +566,6 @@
style="font-size:192px;font-style:normal;font-weight:bold;text-anchor:start;fill:#000000;stroke-width:0.025in;font-family:Courier">rcutree_migrate_callbacks()</text>
<text
xml:space="preserve"
- x="8335.4873"
- y="5357.1006"
- font-style="normal"
- font-weight="bold"
- font-size="192"
- id="text202-7-9-6-0"
- style="font-size:192px;font-style:normal;font-weight:bold;text-anchor:start;fill:#000000;stroke-width:0.025in;font-family:Courier">rcu_migrate_callbacks()</text>
- <text
- xml:space="preserve"
x="8768.4678"
y="6224.9038"
font-style="normal"
diff --git a/Documentation/RCU/Design/Memory-Ordering/TreeRCU-dyntick.svg b/Documentation/RCU/Design/Memory-Ordering/TreeRCU-dyntick.svg
index 423df00c4df9..3fbc19c48a58 100644
--- a/Documentation/RCU/Design/Memory-Ordering/TreeRCU-dyntick.svg
+++ b/Documentation/RCU/Design/Memory-Ordering/TreeRCU-dyntick.svg
@@ -528,7 +528,7 @@
font-style="normal"
y="-8652.5312"
x="2466.7822"
- xml:space="preserve">dyntick_save_progress_counter()</text>
+ xml:space="preserve">rcu_watching_snap_save()</text>
<text
style="font-size:192px;font-style:normal;font-weight:bold;text-anchor:start;fill:#000000;stroke-width:0.025in;font-family:Courier"
id="text202-7-2-7-2-0"
@@ -537,7 +537,7 @@
font-style="normal"
y="-8368.1475"
x="2463.3262"
- xml:space="preserve">rcu_implicit_dynticks_qs()</text>
+ xml:space="preserve">rcu_watching_snap_recheck()</text>
</g>
<g
id="g4504"
@@ -607,7 +607,7 @@
font-weight="bold"
font-size="192"
id="text202-7-5-3-27-6"
- style="font-size:192px;font-style:normal;font-weight:bold;text-anchor:start;fill:#000000;stroke-width:0.025in;font-family:Courier">rcu_dynticks_eqs_enter()</text>
+ style="font-size:192px;font-style:normal;font-weight:bold;text-anchor:start;fill:#000000;stroke-width:0.025in;font-family:Courier">ct_kernel_exit_state()</text>
<text
xml:space="preserve"
x="3745.7725"
@@ -638,7 +638,7 @@
font-weight="bold"
font-size="192"
id="text202-7-5-3-27-6-1"
- style="font-size:192px;font-style:normal;font-weight:bold;text-anchor:start;fill:#000000;stroke-width:0.025in;font-family:Courier">rcu_dynticks_eqs_exit()</text>
+ style="font-size:192px;font-style:normal;font-weight:bold;text-anchor:start;fill:#000000;stroke-width:0.025in;font-family:Courier">ct_kernel_enter_state()</text>
<text
xml:space="preserve"
x="3745.7725"
diff --git a/Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp-fqs.svg b/Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp-fqs.svg
index 7ddc094d7f28..25c7acc8a4c2 100644
--- a/Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp-fqs.svg
+++ b/Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp-fqs.svg
@@ -844,7 +844,7 @@
font-style="normal"
y="1547.8876"
x="4417.6396"
- xml:space="preserve">dyntick_save_progress_counter()</text>
+ xml:space="preserve">rcu_watching_snap_save()</text>
<g
style="fill:none;stroke-width:0.025in"
transform="translate(6501.9719,-10685.904)"
@@ -899,7 +899,7 @@
font-style="normal"
y="1858.8729"
x="4414.1836"
- xml:space="preserve">rcu_implicit_dynticks_qs()</text>
+ xml:space="preserve">rcu_watching_snap_recheck()</text>
<text
xml:space="preserve"
x="14659.87"
@@ -977,7 +977,7 @@
font-weight="bold"
font-size="192"
id="text202-7-5-3-27-6"
- style="font-size:192px;font-style:normal;font-weight:bold;text-anchor:start;fill:#000000;stroke-width:0.025in;font-family:Courier">rcu_dynticks_eqs_enter()</text>
+ style="font-size:192px;font-style:normal;font-weight:bold;text-anchor:start;fill:#000000;stroke-width:0.025in;font-family:Courier">ct_kernel_exit_state()</text>
<text
xml:space="preserve"
x="3745.7725"
@@ -1008,7 +1008,7 @@
font-weight="bold"
font-size="192"
id="text202-7-5-3-27-6-1"
- style="font-size:192px;font-style:normal;font-weight:bold;text-anchor:start;fill:#000000;stroke-width:0.025in;font-family:Courier">rcu_dynticks_eqs_exit()</text>
+ style="font-size:192px;font-style:normal;font-weight:bold;text-anchor:start;fill:#000000;stroke-width:0.025in;font-family:Courier">ct_kernel_enter_state()</text>
<text
xml:space="preserve"
x="3745.7725"
@@ -1135,7 +1135,7 @@
font-weight="bold"
font-size="192"
id="text202-7-5-3-27-6-5"
- style="font-size:192px;font-style:normal;font-weight:bold;text-anchor:start;fill:#000000;stroke-width:0.025in;font-family:Courier">rcu_report_dead()</text>
+ style="font-size:192px;font-style:normal;font-weight:bold;text-anchor:start;fill:#000000;stroke-width:0.025in;font-family:Courier">rcutree_report_cpu_dead()</text>
<text
xml:space="preserve"
x="3745.7725"
@@ -1256,7 +1256,7 @@
font-style="normal"
y="3679.27"
x="-3804.9949"
- xml:space="preserve">rcu_cpu_starting()</text>
+ xml:space="preserve">rcutree_report_cpu_starting()</text>
<g
style="fill:none;stroke-width:0.025in"
id="g3107-7-5-0"
diff --git a/Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp.svg b/Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp.svg
index 069f6f8371c2..d05bc7b27edb 100644
--- a/Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp.svg
+++ b/Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp.svg
@@ -1448,15 +1448,6 @@
style="font-size:192px;font-style:normal;font-weight:bold;text-anchor:start;fill:#000000;stroke-width:0.025in;font-family:Courier">rcutree_migrate_callbacks()</text>
<text
xml:space="preserve"
- x="8335.4873"
- y="5357.1006"
- font-style="normal"
- font-weight="bold"
- font-size="192"
- id="text202-7-9-6-0"
- style="font-size:192px;font-style:normal;font-weight:bold;text-anchor:start;fill:#000000;stroke-width:0.025in;font-family:Courier">rcu_migrate_callbacks()</text>
- <text
- xml:space="preserve"
x="8768.4678"
y="6224.9038"
font-style="normal"
@@ -2983,7 +2974,7 @@
font-style="normal"
y="38114.047"
x="-334.33856"
- xml:space="preserve">dyntick_save_progress_counter()</text>
+ xml:space="preserve">rcu_watching_snap_save()</text>
<g
style="fill:none;stroke-width:0.025in"
transform="translate(1749.9916,25880.249)"
@@ -3038,7 +3029,7 @@
font-style="normal"
y="38425.035"
x="-337.79462"
- xml:space="preserve">rcu_implicit_dynticks_qs()</text>
+ xml:space="preserve">rcu_watching_snap_recheck()</text>
<text
xml:space="preserve"
x="9907.8887"
@@ -3116,7 +3107,7 @@
font-weight="bold"
font-size="192"
id="text202-7-5-3-27-6"
- style="font-size:192px;font-style:normal;font-weight:bold;text-anchor:start;fill:#000000;stroke-width:0.025in;font-family:Courier">rcu_dynticks_eqs_enter()</text>
+ style="font-size:192px;font-style:normal;font-weight:bold;text-anchor:start;fill:#000000;stroke-width:0.025in;font-family:Courier">ct_kernel_exit_state()</text>
<text
xml:space="preserve"
x="3745.7725"
@@ -3147,7 +3138,7 @@
font-weight="bold"
font-size="192"
id="text202-7-5-3-27-6-1"
- style="font-size:192px;font-style:normal;font-weight:bold;text-anchor:start;fill:#000000;stroke-width:0.025in;font-family:Courier">rcu_dynticks_eqs_exit()</text>
+ style="font-size:192px;font-style:normal;font-weight:bold;text-anchor:start;fill:#000000;stroke-width:0.025in;font-family:Courier">ct_kernel_enter_state()</text>
<text
xml:space="preserve"
x="3745.7725"
@@ -3274,7 +3265,7 @@
font-weight="bold"
font-size="192"
id="text202-7-5-3-27-6-5"
- style="font-size:192px;font-style:normal;font-weight:bold;text-anchor:start;fill:#000000;stroke-width:0.025in;font-family:Courier">rcu_report_dead()</text>
+ style="font-size:192px;font-style:normal;font-weight:bold;text-anchor:start;fill:#000000;stroke-width:0.025in;font-family:Courier">rcutree_report_cpu_dead()</text>
<text
xml:space="preserve"
x="3745.7725"
@@ -3395,7 +3386,7 @@
font-style="normal"
y="3679.27"
x="-3804.9949"
- xml:space="preserve">rcu_cpu_starting()</text>
+ xml:space="preserve">rcutree_report_cpu_starting()</text>
<g
style="fill:none;stroke-width:0.025in"
id="g3107-7-5-0"
diff --git a/Documentation/RCU/Design/Memory-Ordering/TreeRCU-hotplug.svg b/Documentation/RCU/Design/Memory-Ordering/TreeRCU-hotplug.svg
index 2c9310ba29ba..a92356ce4011 100644
--- a/Documentation/RCU/Design/Memory-Ordering/TreeRCU-hotplug.svg
+++ b/Documentation/RCU/Design/Memory-Ordering/TreeRCU-hotplug.svg
@@ -516,7 +516,7 @@
font-style="normal"
y="-8652.5312"
x="2466.7822"
- xml:space="preserve">dyntick_save_progress_counter()</text>
+ xml:space="preserve">rcu_watching_snap_save()</text>
<text
style="font-size:192px;font-style:normal;font-weight:bold;text-anchor:start;fill:#000000;stroke-width:0.025in;font-family:Courier"
id="text202-7-2-7-2-0"
@@ -525,7 +525,7 @@
font-style="normal"
y="-8368.1475"
x="2463.3262"
- xml:space="preserve">rcu_implicit_dynticks_qs()</text>
+ xml:space="preserve">rcu_watching_snap_recheck()</text>
<text
sodipodi:linespacing="125%"
style="font-size:192px;font-style:normal;font-weight:bold;line-height:125%;text-anchor:start;fill:#000000;stroke-width:0.025in;font-family:Courier"
@@ -607,7 +607,7 @@
font-weight="bold"
font-size="192"
id="text202-7-5-3-27-6"
- style="font-size:192px;font-style:normal;font-weight:bold;text-anchor:start;fill:#000000;stroke-width:0.025in;font-family:Courier">rcu_report_dead()</text>
+ style="font-size:192px;font-style:normal;font-weight:bold;text-anchor:start;fill:#000000;stroke-width:0.025in;font-family:Courier">rcutree_report_cpu_dead()</text>
<text
xml:space="preserve"
x="3745.7725"
@@ -728,7 +728,7 @@
font-style="normal"
y="3679.27"
x="-3804.9949"
- xml:space="preserve">rcu_cpu_starting()</text>
+ xml:space="preserve">rcutree_report_cpu_starting()</text>
<g
style="fill:none;stroke-width:0.025in"
id="g3107-7-5-0"
diff --git a/Documentation/RCU/Design/Requirements/Requirements.rst b/Documentation/RCU/Design/Requirements/Requirements.rst
index 49387d823619..ba417a08b93d 100644
--- a/Documentation/RCU/Design/Requirements/Requirements.rst
+++ b/Documentation/RCU/Design/Requirements/Requirements.rst
@@ -1955,12 +1955,12 @@ if offline CPUs block an RCU grace period for too long.
An offline CPU's quiescent state will be reported either:
-1. As the CPU goes offline using RCU's hotplug notifier (rcu_report_dead()).
+1. As the CPU goes offline using RCU's hotplug notifier (rcutree_report_cpu_dead()).
2. When grace period initialization (rcu_gp_init()) detects a
race either with CPU offlining or with a task unblocking on a leaf
``rcu_node`` structure whose CPUs are all offline.
-The CPU-online path (rcu_cpu_starting()) should never need to report
+The CPU-online path (rcutree_report_cpu_starting()) should never need to report
a quiescent state for an offline CPU. However, as a debugging measure,
it does emit a warning if a quiescent state was not already reported
for that CPU.
@@ -1970,6 +1970,130 @@ corresponding CPU's leaf node lock is held. This avoids race conditions
between RCU's hotplug notifier hooks, the grace period initialization
code, and the FQS loop, all of which refer to or modify this bookkeeping.
+Note that grace period initialization (rcu_gp_init()) must carefully sequence
+CPU hotplug scanning with grace period state changes. For example, the
+following race could occur in rcu_gp_init() if rcu_seq_start() were to happen
+after the CPU hotplug scanning::
+
+ CPU0 (rcu_gp_init) CPU1 CPU2
+ --------------------- ---- ----
+ // Hotplug scan first (WRONG ORDER)
+ rcu_for_each_leaf_node(rnp) {
+ rnp->qsmaskinit = rnp->qsmaskinitnext;
+ }
+ rcutree_report_cpu_starting()
+ rnp->qsmaskinitnext |= mask;
+ rcu_read_lock()
+ r0 = *X;
+ r1 = *X;
+ X = NULL;
+ cookie = get_state_synchronize_rcu();
+ // cookie = 8 (future GP)
+ rcu_seq_start(&rcu_state.gp_seq);
+ // gp_seq = 5
+
+ // CPU1 now invisible to this GP!
+ rcu_for_each_node_breadth_first() {
+ rnp->qsmask = rnp->qsmaskinit;
+ // CPU1 not included!
+ }
+
+ // GP completes without CPU1
+ rcu_seq_end(&rcu_state.gp_seq);
+ // gp_seq = 8
+ poll_state_synchronize_rcu(cookie);
+ // Returns true!
+ kfree(r1);
+ r2 = *r0; // USE-AFTER-FREE!
+
+By incrementing ``gp_seq`` first, CPU1's RCU read-side critical section
+is guaranteed to not be missed by CPU2.
+
+Concurrent Quiescent State Reporting for Offline CPUs
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+RCU must ensure that CPUs going offline report quiescent states to avoid
+blocking grace periods. This requires careful synchronization to handle
+race conditions
+
+Race condition causing Offline CPU to hang GP
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+A race between CPU offlining and new GP initialization (gp_init()) may occur
+because rcu_report_qs_rnp() in rcutree_report_cpu_dead() must temporarily
+release the ``rcu_node`` lock to wake the RCU grace-period kthread::
+
+ CPU1 (going offline) CPU0 (GP kthread)
+ -------------------- -----------------
+ rcutree_report_cpu_dead()
+ rcu_report_qs_rnp()
+ // Must release rnp->lock to wake GP kthread
+ raw_spin_unlock_irqrestore_rcu_node()
+ // Wakes up and starts new GP
+ rcu_gp_init()
+ // First loop:
+ copies qsmaskinitnext->qsmaskinit
+ // CPU1 still in qsmaskinitnext!
+
+ // Second loop:
+ rnp->qsmask = rnp->qsmaskinit
+ mask = rnp->qsmask & ~rnp->qsmaskinitnext
+ // mask is 0! CPU1 still in both masks
+ // Reacquire lock (but too late)
+ rnp->qsmaskinitnext &= ~mask // Finally clears bit
+
+Without ``ofl_lock``, the new grace period includes the offline CPU and waits
+forever for its quiescent state causing a GP hang.
+
+A solution with ofl_lock
+^^^^^^^^^^^^^^^^^^^^^^^^
+
+The ``ofl_lock`` (offline lock) prevents rcu_gp_init() from running during
+the vulnerable window when rcu_report_qs_rnp() has released ``rnp->lock``::
+
+ CPU0 (rcu_gp_init) CPU1 (rcutree_report_cpu_dead)
+ ------------------ ------------------------------
+ rcu_for_each_leaf_node(rnp) {
+ arch_spin_lock(&ofl_lock) -----> arch_spin_lock(&ofl_lock) [BLOCKED]
+
+ // Safe: CPU1 can't interfere
+ rnp->qsmaskinit = rnp->qsmaskinitnext
+
+ arch_spin_unlock(&ofl_lock) ---> // Now CPU1 can proceed
+ } // But snapshot already taken
+
+Another race causing GP hangs in rcu_gpu_init(): Reporting QS for Now-offline CPUs
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+After the first loop takes an atomic snapshot of online CPUs, as shown above,
+the second loop in rcu_gp_init() detects CPUs that went offline between
+releasing ``ofl_lock`` and acquiring the per-node ``rnp->lock``.
+This detection is crucial because:
+
+1. The CPU might have gone offline after the snapshot but before the second loop
+2. The offline CPU cannot report its own QS if it's already dead
+3. Without this detection, the grace period would wait forever for CPUs that
+ are now offline.
+
+The second loop performs this detection safely::
+
+ rcu_for_each_node_breadth_first(rnp) {
+ raw_spin_lock_irqsave_rcu_node(rnp, flags);
+ rnp->qsmask = rnp->qsmaskinit; // Apply the snapshot
+
+ // Detect CPUs offline after snapshot
+ mask = rnp->qsmask & ~rnp->qsmaskinitnext;
+
+ if (mask && rcu_is_leaf_node(rnp))
+ rcu_report_qs_rnp(mask, ...) // Report QS for offline CPUs
+ }
+
+This approach ensures atomicity: quiescent state reporting for offline CPUs
+happens either in rcu_gp_init() (second loop) or in rcutree_report_cpu_dead(),
+never both and never neither. The ``rnp->lock`` held throughout the sequence
+prevents races - rcutree_report_cpu_dead() also acquires this lock when
+clearing ``qsmaskinitnext``, ensuring mutual exclusion.
+
Scheduler and RCU
~~~~~~~~~~~~~~~~~
@@ -2071,41 +2195,7 @@ call.
Because RCU avoids interrupting idle CPUs, it is illegal to execute an
RCU read-side critical section on an idle CPU. (Kernels built with
-``CONFIG_PROVE_RCU=y`` will splat if you try it.) The RCU_NONIDLE()
-macro and ``_rcuidle`` event tracing is provided to work around this
-restriction. In addition, rcu_is_watching() may be used to test
-whether or not it is currently legal to run RCU read-side critical
-sections on this CPU. I learned of the need for diagnostics on the one
-hand and RCU_NONIDLE() on the other while inspecting idle-loop code.
-Steven Rostedt supplied ``_rcuidle`` event tracing, which is used quite
-heavily in the idle loop. However, there are some restrictions on the
-code placed within RCU_NONIDLE():
-
-#. Blocking is prohibited. In practice, this is not a serious
- restriction given that idle tasks are prohibited from blocking to
- begin with.
-#. Although nesting RCU_NONIDLE() is permitted, they cannot nest
- indefinitely deeply. However, given that they can be nested on the
- order of a million deep, even on 32-bit systems, this should not be a
- serious restriction. This nesting limit would probably be reached
- long after the compiler OOMed or the stack overflowed.
-#. Any code path that enters RCU_NONIDLE() must sequence out of that
- same RCU_NONIDLE(). For example, the following is grossly
- illegal:
-
- ::
-
- 1 RCU_NONIDLE({
- 2 do_something();
- 3 goto bad_idea; /* BUG!!! */
- 4 do_something_else();});
- 5 bad_idea:
-
-
- It is just as illegal to transfer control into the middle of
- RCU_NONIDLE()'s argument. Yes, in theory, you could transfer in
- as long as you also transferred out, but in practice you could also
- expect to get sharply worded review comments.
+``CONFIG_PROVE_RCU=y`` will splat if you try it.)
It is similarly socially unacceptable to interrupt an ``nohz_full`` CPU
running in userspace. RCU must therefore track ``nohz_full`` userspace
@@ -2391,6 +2481,7 @@ section.
#. `Sched Flavor (Historical)`_
#. `Sleepable RCU`_
#. `Tasks RCU`_
+#. `Tasks Trace RCU`_
Bottom-Half Flavor (Historical)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -2546,15 +2637,16 @@ synchronize_srcu() for some other domain ``ss1``, and if an
that was held across as ``ss``-domain synchronize_srcu(), deadlock
would again be possible. Such a deadlock cycle could extend across an
arbitrarily large number of different SRCU domains. Again, with great
-power comes great responsibility.
+power comes great responsibility, though lockdep is now able to detect
+this sort of deadlock.
-Unlike the other RCU flavors, SRCU read-side critical sections can run
-on idle and even offline CPUs. This ability requires that
-srcu_read_lock() and srcu_read_unlock() contain memory barriers,
-which means that SRCU readers will run a bit slower than would RCU
-readers. It also motivates the smp_mb__after_srcu_read_unlock() API,
-which, in combination with srcu_read_unlock(), guarantees a full
-memory barrier.
+Unlike the other RCU flavors, SRCU read-side critical sections can run on
+idle and even offline CPUs, with the exception of srcu_read_lock_fast()
+and friends. This ability requires that srcu_read_lock() and
+srcu_read_unlock() contain memory barriers, which means that SRCU
+readers will run a bit slower than would RCU readers. It also motivates
+the smp_mb__after_srcu_read_unlock() API, which, in combination with
+srcu_read_unlock(), guarantees a full memory barrier.
Also unlike other RCU flavors, synchronize_srcu() may **not** be
invoked from CPU-hotplug notifiers, due to the fact that SRCU grace
@@ -2590,15 +2682,15 @@ run some tests first. SRCU just might need a few adjustment to deal with
that sort of load. Of course, your mileage may vary based on the speed
of your CPUs and the size of your memory.
-The `SRCU
-API <https://lwn.net/Articles/609973/#RCU%20Per-Flavor%20API%20Table>`__
+The `SRCU API
+<https://lwn.net/Articles/609973/#RCU%20Per-Flavor%20API%20Table>`__
includes srcu_read_lock(), srcu_read_unlock(),
-srcu_dereference(), srcu_dereference_check(),
-synchronize_srcu(), synchronize_srcu_expedited(),
-call_srcu(), srcu_barrier(), and srcu_read_lock_held(). It
-also includes DEFINE_SRCU(), DEFINE_STATIC_SRCU(), and
-init_srcu_struct() APIs for defining and initializing
-``srcu_struct`` structures.
+srcu_dereference(), srcu_dereference_check(), synchronize_srcu(),
+synchronize_srcu_expedited(), call_srcu(), srcu_barrier(),
+and srcu_read_lock_held(). It also includes DEFINE_SRCU(),
+DEFINE_STATIC_SRCU(), DEFINE_SRCU_FAST(), DEFINE_STATIC_SRCU_FAST(),
+init_srcu_struct(), and init_srcu_struct_fast() APIs for defining and
+initializing ``srcu_struct`` structures.
More recently, the SRCU API has added polling interfaces:
@@ -2644,6 +2736,16 @@ critical sections that are delimited by voluntary context switches, that
is, calls to schedule(), cond_resched(), and
synchronize_rcu_tasks(). In addition, transitions to and from
userspace execution also delimit tasks-RCU read-side critical sections.
+Idle tasks are ignored by Tasks RCU, and Tasks Rude RCU may be used to
+interact with them.
+
+Note well that involuntary context switches are *not* Tasks-RCU quiescent
+states. After all, in preemptible kernels, a task executing code in a
+trampoline might be preempted. In this case, the Tasks-RCU grace period
+clearly cannot end until that task resumes and its execution leaves that
+trampoline. This means, among other things, that cond_resched() does
+not provide a Tasks RCU quiescent state. (Instead, use rcu_softirq_qs()
+from softirq or rcu_tasks_classic_qs() otherwise.)
The tasks-RCU API is quite compact, consisting only of
call_rcu_tasks(), synchronize_rcu_tasks(), and
@@ -2666,9 +2768,13 @@ moniker. And this operation is considered to be quite rude by real-time
workloads that don't want their ``nohz_full`` CPUs receiving IPIs and
by battery-powered systems that don't want their idle CPUs to be awakened.
+Once kernel entry/exit and deep-idle functions have been properly tagged
+``noinstr``, Tasks RCU can start paying attention to idle tasks (except
+those that are idle from RCU's perspective) and then Tasks Rude RCU can
+be removed from the kernel.
+
The tasks-rude-RCU API is also reader-marking-free and thus quite compact,
-consisting of call_rcu_tasks_rude(), synchronize_rcu_tasks_rude(),
-and rcu_barrier_tasks_rude().
+consisting solely of synchronize_rcu_tasks_rude().
Tasks Trace RCU
~~~~~~~~~~~~~~~
diff --git a/Documentation/RCU/RTFP.txt b/Documentation/RCU/RTFP.txt
index db8f16b392aa..8d4e8de4c460 100644
--- a/Documentation/RCU/RTFP.txt
+++ b/Documentation/RCU/RTFP.txt
@@ -641,7 +641,7 @@ Orran Krieger and Rusty Russell and Dipankar Sarma and Maneesh Soni"
,Month="July"
,Year="2001"
,note="Available:
-\url{http://www.linuxsymposium.org/2001/abstracts/readcopy.php}
+\url{https://kernel.org/doc/ols/2001/read-copy.pdf}
\url{http://www.rdrop.com/users/paulmck/RCU/rclock_OLS.2001.05.01c.pdf}
[Viewed June 23, 2004]"
,annotation={
@@ -1480,7 +1480,7 @@ Suparna Bhattacharya"
,Year="2006"
,pages="v2 123-138"
,note="Available:
-\url{http://www.linuxsymposium.org/2006/view_abstract.php?content_key=184}
+\url{https://kernel.org/doc/ols/2006/ols2006v2-pages-131-146.pdf}
\url{http://www.rdrop.com/users/paulmck/RCU/OLSrtRCU.2006.08.11a.pdf}
[Viewed January 1, 2007]"
,annotation={
@@ -1511,7 +1511,7 @@ Canis Rufus and Zoicon5 and Anome and Hal Eisen"
,Year="2006"
,pages="v2 249-254"
,note="Available:
-\url{http://www.linuxsymposium.org/2006/view_abstract.php?content_key=184}
+\url{https://kernel.org/doc/ols/2006/ols2006v2-pages-249-262.pdf}
[Viewed January 11, 2009]"
,annotation={
Uses RCU-protected radix tree for a lockless page cache.
diff --git a/Documentation/RCU/checklist.rst b/Documentation/RCU/checklist.rst
index bd3c58c44bef..4b30f701225f 100644
--- a/Documentation/RCU/checklist.rst
+++ b/Documentation/RCU/checklist.rst
@@ -68,7 +68,14 @@ over a rather long period of time, but improvements are always welcome!
rcu_read_lock_sched(), or by the appropriate update-side lock.
Explicit disabling of preemption (preempt_disable(), for example)
can serve as rcu_read_lock_sched(), but is less readable and
- prevents lockdep from detecting locking issues.
+ prevents lockdep from detecting locking issues. Acquiring a
+ raw spinlock also enters an RCU read-side critical section.
+
+ The guard(rcu)() and scoped_guard(rcu) primitives designate
+ the remainder of the current scope or the next statement,
+ respectively, as the RCU read-side critical section. Use of
+ these guards can be less error-prone than rcu_read_lock(),
+ rcu_read_unlock(), and friends.
Please note that you *cannot* rely on code known to be built
only in non-preemptible kernels. Such code can and will break,
@@ -193,14 +200,13 @@ over a rather long period of time, but improvements are always welcome!
when publicizing a pointer to a structure that can
be traversed by an RCU read-side critical section.
-5. If any of call_rcu(), call_srcu(), call_rcu_tasks(),
- call_rcu_tasks_rude(), or call_rcu_tasks_trace() is used,
- the callback function may be invoked from softirq context,
- and in any case with bottom halves disabled. In particular,
- this callback function cannot block. If you need the callback
- to block, run that code in a workqueue handler scheduled from
- the callback. The queue_rcu_work() function does this for you
- in the case of call_rcu().
+5. If any of call_rcu(), call_srcu(), call_rcu_tasks(), or
+ call_rcu_tasks_trace() is used, the callback function may be
+ invoked from softirq context, and in any case with bottom halves
+ disabled. In particular, this callback function cannot block.
+ If you need the callback to block, run that code in a workqueue
+ handler scheduled from the callback. The queue_rcu_work()
+ function does this for you in the case of call_rcu().
6. Since synchronize_rcu() can block, it cannot be called
from any sort of irq context. The same rule applies
@@ -241,15 +247,22 @@ over a rather long period of time, but improvements are always welcome!
srcu_struct. The rules for the expedited RCU grace-period-wait
primitives are the same as for their non-expedited counterparts.
- If the updater uses call_rcu_tasks() or synchronize_rcu_tasks(),
- then the readers must refrain from executing voluntary
- context switches, that is, from blocking. If the updater uses
- call_rcu_tasks_trace() or synchronize_rcu_tasks_trace(), then
- the corresponding readers must use rcu_read_lock_trace() and
- rcu_read_unlock_trace(). If an updater uses call_rcu_tasks_rude()
- or synchronize_rcu_tasks_rude(), then the corresponding readers
- must use anything that disables preemption, for example,
- preempt_disable() and preempt_enable().
+ Similarly, it is necessary to correctly use the RCU Tasks flavors:
+
+ a. If the updater uses synchronize_rcu_tasks() or
+ call_rcu_tasks(), then the readers must refrain from
+ executing voluntary context switches, that is, from
+ blocking.
+
+ b. If the updater uses call_rcu_tasks_trace()
+ or synchronize_rcu_tasks_trace(), then the
+ corresponding readers must use rcu_read_lock_trace()
+ and rcu_read_unlock_trace().
+
+ c. If an updater uses synchronize_rcu_tasks_rude(),
+ then the corresponding readers must use anything that
+ disables preemption, for example, preempt_disable()
+ and preempt_enable().
Mixing things up will result in confusion and broken kernels, and
has even resulted in an exploitable security issue. Therefore,
@@ -318,11 +331,9 @@ over a rather long period of time, but improvements are always welcome!
d. Periodically invoke rcu_barrier(), permitting a limited
number of updates per grace period.
- The same cautions apply to call_srcu(), call_rcu_tasks(),
- call_rcu_tasks_rude(), and call_rcu_tasks_trace(). This is
- why there is an srcu_barrier(), rcu_barrier_tasks(),
- rcu_barrier_tasks_rude(), and rcu_barrier_tasks_rude(),
- respectively.
+ The same cautions apply to call_srcu(), call_rcu_tasks(), and
+ call_rcu_tasks_trace(). This is why there is an srcu_barrier(),
+ rcu_barrier_tasks(), and rcu_barrier_tasks_trace(), respectively.
Note that although these primitives do take action to avoid
memory exhaustion when any given CPU has too many callbacks,
@@ -376,15 +387,16 @@ over a rather long period of time, but improvements are always welcome!
to safely access and/or modify that data structure.
Do not assume that RCU callbacks will be executed on the same
- CPU that executed the corresponding call_rcu() or call_srcu().
- For example, if a given CPU goes offline while having an RCU
- callback pending, then that RCU callback will execute on some
- surviving CPU. (If this was not the case, a self-spawning RCU
- callback would prevent the victim CPU from ever going offline.)
- Furthermore, CPUs designated by rcu_nocbs= might well *always*
- have their RCU callbacks executed on some other CPUs, in fact,
- for some real-time workloads, this is the whole point of using
- the rcu_nocbs= kernel boot parameter.
+ CPU that executed the corresponding call_rcu(), call_srcu(),
+ call_rcu_tasks(), or call_rcu_tasks_trace(). For example, if
+ a given CPU goes offline while having an RCU callback pending,
+ then that RCU callback will execute on some surviving CPU.
+ (If this was not the case, a self-spawning RCU callback would
+ prevent the victim CPU from ever going offline.) Furthermore,
+ CPUs designated by rcu_nocbs= might well *always* have their
+ RCU callbacks executed on some other CPUs, in fact, for some
+ real-time workloads, this is the whole point of using the
+ rcu_nocbs= kernel boot parameter.
In addition, do not assume that callbacks queued in a given order
will be invoked in that order, even if they all are queued on the
@@ -399,15 +411,19 @@ over a rather long period of time, but improvements are always welcome!
13. Unlike most flavors of RCU, it *is* permissible to block in an
SRCU read-side critical section (demarked by srcu_read_lock()
and srcu_read_unlock()), hence the "SRCU": "sleepable RCU".
- Please note that if you don't need to sleep in read-side critical
- sections, you should be using RCU rather than SRCU, because RCU
- is almost always faster and easier to use than is SRCU.
-
- Also unlike other forms of RCU, explicit initialization and
- cleanup is required either at build time via DEFINE_SRCU()
- or DEFINE_STATIC_SRCU() or at runtime via init_srcu_struct()
- and cleanup_srcu_struct(). These last two are passed a
- "struct srcu_struct" that defines the scope of a given
+ As with RCU, guard(srcu)() and scoped_guard(srcu) forms are
+ available, and often provide greater ease of use. Please note
+ that if you don't need to sleep in read-side critical sections,
+ you should be using RCU rather than SRCU, because RCU is almost
+ always faster and easier to use than is SRCU.
+
+ Also unlike other forms of RCU, explicit initialization
+ and cleanup is required either at build time via
+ DEFINE_SRCU(), DEFINE_STATIC_SRCU(), DEFINE_SRCU_FAST(),
+ or DEFINE_STATIC_SRCU_FAST() or at runtime via either
+ init_srcu_struct() or init_srcu_struct_fast() and
+ cleanup_srcu_struct(). These last three are passed a
+ `struct srcu_struct` that defines the scope of a given
SRCU domain. Once initialized, the srcu_struct is passed
to srcu_read_lock(), srcu_read_unlock() synchronize_srcu(),
synchronize_srcu_expedited(), and call_srcu(). A given
@@ -437,10 +453,13 @@ over a rather long period of time, but improvements are always welcome!
real-time workloads than is synchronize_rcu_expedited().
It is also permissible to sleep in RCU Tasks Trace read-side
- critical, which are delimited by rcu_read_lock_trace() and
- rcu_read_unlock_trace(). However, this is a specialized flavor
- of RCU, and you should not use it without first checking with
- its current users. In most cases, you should instead use SRCU.
+ critical section, which are delimited by rcu_read_lock_trace()
+ and rcu_read_unlock_trace(). However, this is a specialized
+ flavor of RCU, and you should not use it without first checking
+ with its current users. In most cases, you should instead
+ use SRCU. As with RCU and SRCU, guard(rcu_tasks_trace)() and
+ scoped_guard(rcu_tasks_trace) are available, and often provide
+ greater ease of use.
Note that rcu_assign_pointer() relates to SRCU just as it does to
other forms of RCU, but instead of rcu_dereference() you should
@@ -483,6 +502,12 @@ over a rather long period of time, but improvements are always welcome!
since the last time that you passed that same object to
call_rcu() (or friends).
+ CONFIG_RCU_STRICT_GRACE_PERIOD:
+ combine with KASAN to check for pointers leaked out
+ of RCU read-side critical sections. This Kconfig
+ option is tough on both performance and scalability,
+ and so is limited to four-CPU systems.
+
__rcu sparse checks:
tag the pointer to the RCU-protected data structure
with __rcu, and sparse will warn you if you access that
@@ -492,9 +517,9 @@ over a rather long period of time, but improvements are always welcome!
These debugging aids can help you find problems that are
otherwise extremely difficult to spot.
-17. If you pass a callback function defined within a module to one of
- call_rcu(), call_srcu(), call_rcu_tasks(), call_rcu_tasks_rude(),
- or call_rcu_tasks_trace(), then it is necessary to wait for all
+17. If you pass a callback function defined within a module
+ to one of call_rcu(), call_srcu(), call_rcu_tasks(), or
+ call_rcu_tasks_trace(), then it is necessary to wait for all
pending callbacks to be invoked before unloading that module.
Note that it is absolutely *not* sufficient to wait for a grace
period! For example, synchronize_rcu() implementation is *not*
@@ -507,7 +532,6 @@ over a rather long period of time, but improvements are always welcome!
- call_rcu() -> rcu_barrier()
- call_srcu() -> srcu_barrier()
- call_rcu_tasks() -> rcu_barrier_tasks()
- - call_rcu_tasks_rude() -> rcu_barrier_tasks_rude()
- call_rcu_tasks_trace() -> rcu_barrier_tasks_trace()
However, these barrier functions are absolutely *not* guaranteed
@@ -524,7 +548,6 @@ over a rather long period of time, but improvements are always welcome!
- Either synchronize_srcu() or synchronize_srcu_expedited(),
together with and srcu_barrier()
- synchronize_rcu_tasks() and rcu_barrier_tasks()
- - synchronize_tasks_rude() and rcu_barrier_tasks_rude()
- synchronize_tasks_trace() and rcu_barrier_tasks_trace()
If necessary, you can use something like workqueues to execute
diff --git a/Documentation/RCU/index.rst b/Documentation/RCU/index.rst
index 84a79903f6a8..ef26c78507d3 100644
--- a/Documentation/RCU/index.rst
+++ b/Documentation/RCU/index.rst
@@ -1,13 +1,13 @@
.. SPDX-License-Identifier: GPL-2.0
-.. _rcu_concepts:
+.. _rcu_handbook:
============
-RCU concepts
+RCU Handbook
============
.. toctree::
- :maxdepth: 3
+ :maxdepth: 2
checklist
lockdep
diff --git a/Documentation/RCU/listRCU.rst b/Documentation/RCU/listRCU.rst
index bdc4bcc5289f..d8bb98623c12 100644
--- a/Documentation/RCU/listRCU.rst
+++ b/Documentation/RCU/listRCU.rst
@@ -8,6 +8,15 @@ One of the most common uses of RCU is protecting read-mostly linked lists
that all of the required memory ordering is provided by the list macros.
This document describes several list-based RCU use cases.
+When iterating a list while holding the rcu_read_lock(), writers may
+modify the list. The reader is guaranteed to see all of the elements
+which were added to the list before they acquired the rcu_read_lock()
+and are still on the list when they drop the rcu_read_unlock().
+Elements which are added to, or removed from the list may or may not
+be seen. If the writer calls list_replace_rcu(), the reader may see
+either the old element or the new element; they will not see both,
+nor will they see neither.
+
Example 1: Read-mostly list: Deferred Destruction
-------------------------------------------------
@@ -325,7 +334,7 @@ If the system-call audit module were to ever need to reject stale data, one way
to accomplish this would be to add a ``deleted`` flag and a ``lock`` spinlock to the
``audit_entry`` structure, and modify audit_filter_task() as follows::
- static enum audit_state audit_filter_task(struct task_struct *tsk)
+ static struct audit_entry *audit_filter_task(struct task_struct *tsk, char **key)
{
struct audit_entry *e;
enum audit_state state;
@@ -337,16 +346,18 @@ to accomplish this would be to add a ``deleted`` flag and a ``lock`` spinlock to
if (e->deleted) {
spin_unlock(&e->lock);
rcu_read_unlock();
- return AUDIT_BUILD_CONTEXT;
+ return NULL;
}
rcu_read_unlock();
if (state == AUDIT_STATE_RECORD)
*key = kstrdup(e->rule.filterkey, GFP_ATOMIC);
- return state;
+ /* As long as e->lock is held, e is valid and
+ * its value is not stale */
+ return e;
}
}
rcu_read_unlock();
- return AUDIT_BUILD_CONTEXT;
+ return NULL;
}
The ``audit_del_rule()`` function would need to set the ``deleted`` flag under the
diff --git a/Documentation/RCU/lockdep-splat.rst b/Documentation/RCU/lockdep-splat.rst
index 2a5c79db57dc..bcbc4b3c88d7 100644
--- a/Documentation/RCU/lockdep-splat.rst
+++ b/Documentation/RCU/lockdep-splat.rst
@@ -10,7 +10,7 @@ misuses of the RCU API, most notably using one of the rcu_dereference()
family to access an RCU-protected pointer without the proper protection.
When such misuse is detected, an lockdep-RCU splat is emitted.
-The usual cause of a lockdep-RCU slat is someone accessing an
+The usual cause of a lockdep-RCU splat is someone accessing an
RCU-protected data structure without either (1) being in the right kind of
RCU read-side critical section or (2) holding the right update-side lock.
This problem can therefore be serious: it might result in random memory
diff --git a/Documentation/RCU/lockdep.rst b/Documentation/RCU/lockdep.rst
index 69e73a39bd11..741b157bbacb 100644
--- a/Documentation/RCU/lockdep.rst
+++ b/Documentation/RCU/lockdep.rst
@@ -106,7 +106,7 @@ or the RCU-protected data that it points to can change concurrently.
Like rcu_dereference(), when lockdep is enabled, RCU list and hlist
traversal primitives check for being called from within an RCU read-side
critical section. However, a lockdep expression can be passed to them
-as a additional optional argument. With this lockdep expression, these
+as an additional optional argument. With this lockdep expression, these
traversal primitives will complain only if the lockdep expression is
false and they are called from outside any RCU read-side critical section.
diff --git a/Documentation/RCU/rcu_dereference.rst b/Documentation/RCU/rcu_dereference.rst
index 3b739f6243c8..2524dcdadde2 100644
--- a/Documentation/RCU/rcu_dereference.rst
+++ b/Documentation/RCU/rcu_dereference.rst
@@ -3,13 +3,26 @@
PROPER CARE AND FEEDING OF RETURN VALUES FROM rcu_dereference()
===============================================================
-Most of the time, you can use values from rcu_dereference() or one of
-the similar primitives without worries. Dereferencing (prefix "*"),
-field selection ("->"), assignment ("="), address-of ("&"), addition and
-subtraction of constants, and casts all work quite naturally and safely.
-
-It is nevertheless possible to get into trouble with other operations.
-Follow these rules to keep your RCU code working properly:
+Proper care and feeding of address and data dependencies is critically
+important to correct use of things like RCU. To this end, the pointers
+returned from the rcu_dereference() family of primitives carry address and
+data dependencies. These dependencies extend from the rcu_dereference()
+macro's load of the pointer to the later use of that pointer to compute
+either the address of a later memory access (representing an address
+dependency) or the value written by a later memory access (representing
+a data dependency).
+
+Most of the time, these dependencies are preserved, permitting you to
+freely use values from rcu_dereference(). For example, dereferencing
+(prefix "*"), field selection ("->"), assignment ("="), address-of
+("&"), casts, and addition or subtraction of constants all work quite
+naturally and safely. However, because current compilers do not take
+either address or data dependencies into account it is still possible
+to get into trouble.
+
+Follow these rules to preserve the address and data dependencies emanating
+from your calls to rcu_dereference() and friends, thus keeping your RCU
+readers working properly:
- You must use one of the rcu_dereference() family of primitives
to load an RCU-protected pointer, otherwise CONFIG_PROVE_RCU
@@ -395,7 +408,10 @@ member of the rcu_dereference() to use in various situations:
RCU flavors, an RCU read-side critical section is entered
using rcu_read_lock(), anything that disables bottom halves,
anything that disables interrupts, or anything that disables
- preemption.
+ preemption. Please note that spinlock critical sections
+ are also implied RCU read-side critical sections, even when
+ they are preemptible, as they are in kernels built with
+ CONFIG_PREEMPT_RT=y.
2. If the access might be within an RCU read-side critical section
on the one hand, or protected by (say) my_lock on the other,
diff --git a/Documentation/RCU/rcubarrier.rst b/Documentation/RCU/rcubarrier.rst
index 6da7f66da2a8..12a7b059654f 100644
--- a/Documentation/RCU/rcubarrier.rst
+++ b/Documentation/RCU/rcubarrier.rst
@@ -329,10 +329,7 @@ Answer:
was first added back in 2005. This is because on_each_cpu()
disables preemption, which acted as an RCU read-side critical
section, thus preventing CPU 0's grace period from completing
- until on_each_cpu() had dealt with all of the CPUs. However,
- with the advent of preemptible RCU, rcu_barrier() no longer
- waited on nonpreemptible regions of code in preemptible kernels,
- that being the job of the new rcu_barrier_sched() function.
+ until on_each_cpu() had dealt with all of the CPUs.
However, with the RCU flavor consolidation around v4.20, this
possibility was once again ruled out, because the consolidated
diff --git a/Documentation/RCU/rculist_nulls.rst b/Documentation/RCU/rculist_nulls.rst
index 9a734bf54b76..21e40fcc08de 100644
--- a/Documentation/RCU/rculist_nulls.rst
+++ b/Documentation/RCU/rculist_nulls.rst
@@ -18,7 +18,16 @@ to solve following problem.
Without 'nulls', a typical RCU linked list managing objects which are
allocated with SLAB_TYPESAFE_BY_RCU kmem_cache can use the following
-algorithms:
+algorithms. Following examples assume 'obj' is a pointer to such
+objects, which is having below type.
+
+::
+
+ struct object {
+ struct hlist_node obj_node;
+ atomic_t refcnt;
+ unsigned int key;
+ };
1) Lookup algorithm
-------------------
@@ -26,11 +35,13 @@ algorithms:
::
begin:
- rcu_read_lock()
+ rcu_read_lock();
obj = lockless_lookup(key);
if (obj) {
- if (!try_get_ref(obj)) // might fail for free objects
+ if (!try_get_ref(obj)) { // might fail for free objects
+ rcu_read_unlock();
goto begin;
+ }
/*
* Because a writer could delete object, and a writer could
* reuse these object before the RCU grace period, we
@@ -54,7 +65,7 @@ but a version with an additional memory barrier (smp_rmb())
struct hlist_node *node, *next;
for (pos = rcu_dereference((head)->first);
pos && ({ next = pos->next; smp_rmb(); prefetch(next); 1; }) &&
- ({ tpos = hlist_entry(pos, typeof(*tpos), member); 1; });
+ ({ obj = hlist_entry(pos, typeof(*obj), obj_node); 1; });
pos = rcu_dereference(next))
if (obj->key == key)
return obj;
@@ -66,10 +77,10 @@ And note the traditional hlist_for_each_entry_rcu() misses this smp_rmb()::
struct hlist_node *node;
for (pos = rcu_dereference((head)->first);
pos && ({ prefetch(pos->next); 1; }) &&
- ({ tpos = hlist_entry(pos, typeof(*tpos), member); 1; });
+ ({ obj = hlist_entry(pos, typeof(*obj), obj_node); 1; });
pos = rcu_dereference(pos->next))
- if (obj->key == key)
- return obj;
+ if (obj->key == key)
+ return obj;
return NULL;
Quoting Corey Minyard::
@@ -86,7 +97,7 @@ Quoting Corey Minyard::
2) Insertion algorithm
----------------------
-We need to make sure a reader cannot read the new 'obj->obj_next' value
+We need to make sure a reader cannot read the new 'obj->obj_node.next' value
and previous value of 'obj->key'. Otherwise, an item could be deleted
from a chain, and inserted into another chain. If new chain was empty
before the move, 'next' pointer is NULL, and lockless reader can not
@@ -129,8 +140,7 @@ very very fast (before the end of RCU grace period)
Avoiding extra smp_rmb()
========================
-With hlist_nulls we can avoid extra smp_rmb() in lockless_lookup()
-and extra _release() in insert function.
+With hlist_nulls we can avoid extra smp_rmb() in lockless_lookup().
For example, if we choose to store the slot number as the 'nulls'
end-of-list marker for each slot of the hash table, we can detect
@@ -142,6 +152,9 @@ the beginning. If the object was moved to the same chain,
then the reader doesn't care: It might occasionally
scan the list again without harm.
+Note that using hlist_nulls means the type of 'obj_node' field of
+'struct object' becomes 'struct hlist_nulls_node'.
+
1) lookup algorithm
-------------------
@@ -151,7 +164,7 @@ scan the list again without harm.
head = &table[slot];
begin:
rcu_read_lock();
- hlist_nulls_for_each_entry_rcu(obj, node, head, member) {
+ hlist_nulls_for_each_entry_rcu(obj, node, head, obj_node) {
if (obj->key == key) {
if (!try_get_ref(obj)) { // might fail for free objects
rcu_read_unlock();
@@ -182,6 +195,9 @@ scan the list again without harm.
2) Insert algorithm
-------------------
+Same to the above one, but uses hlist_nulls_add_head_rcu() instead of
+hlist_add_head_rcu().
+
::
/*
diff --git a/Documentation/RCU/stallwarn.rst b/Documentation/RCU/stallwarn.rst
index ca7b7cd806a1..d7c8eff63317 100644
--- a/Documentation/RCU/stallwarn.rst
+++ b/Documentation/RCU/stallwarn.rst
@@ -96,6 +96,13 @@ warnings:
the ``rcu_.*timer wakeup didn't happen for`` console-log message,
which will include additional debugging information.
+- A timer issue causes time to appear to jump forward, so that RCU
+ believes that the RCU CPU stall-warning timeout has been exceeded
+ when in fact much less time has passed. This could be due to
+ timer hardware bugs, timer driver bugs, or even corruption of
+ the "jiffies" global variable. These sorts of timer hardware
+ and driver bugs are not uncommon when testing new hardware.
+
- A low-level kernel issue that either fails to invoke one of the
variants of rcu_eqs_enter(true), rcu_eqs_exit(true), ct_idle_enter(),
ct_idle_exit(), ct_irq_enter(), or ct_irq_exit() on the one
@@ -112,7 +119,7 @@ warnings:
uncommon in large datacenter. In one memorable case some decades
back, a CPU failed in a running system, becoming unresponsive,
but not causing an immediate crash. This resulted in a series
- of RCU CPU stall warnings, eventually leading the realization
+ of RCU CPU stall warnings, eventually leading to the realization
that the CPU had failed.
The RCU, RCU-sched, RCU-tasks, and RCU-tasks-trace implementations have
@@ -249,7 +256,7 @@ ticks this GP)" indicates that this CPU has not taken any scheduling-clock
interrupts during the current stalled grace period.
The "idle=" portion of the message prints the dyntick-idle state.
-The hex number before the first "/" is the low-order 12 bits of the
+The hex number before the first "/" is the low-order 16 bits of the
dynticks counter, which will have an even-numbered value if the CPU
is in dyntick-idle mode and an odd-numbered value otherwise. The hex
number between the two "/"s is the value of the nesting, which will be
diff --git a/Documentation/RCU/torture.rst b/Documentation/RCU/torture.rst
index b3b6dfa85248..1ad5cc793811 100644
--- a/Documentation/RCU/torture.rst
+++ b/Documentation/RCU/torture.rst
@@ -185,7 +185,7 @@ argument.
Not all changes require that all scenarios be run. For example, a change
to Tree SRCU might run only the SRCU-N and SRCU-P scenarios using the
--configs argument to kvm.sh as follows: "--configs 'SRCU-N SRCU-P'".
-Large systems can run multiple copies of of the full set of scenarios,
+Large systems can run multiple copies of the full set of scenarios,
for example, a system with 448 hardware threads can run five instances
of the full set concurrently. To make this happen::
@@ -318,7 +318,7 @@ Suppose that a previous kvm.sh run left its output in this directory::
tools/testing/selftests/rcutorture/res/2022.11.03-11.26.28
-Then this run can be re-run without rebuilding as follow:
+Then this run can be re-run without rebuilding as follow::
kvm-again.sh tools/testing/selftests/rcutorture/res/2022.11.03-11.26.28
@@ -344,7 +344,7 @@ painstaking and error-prone.
And this is why the kvm-remote.sh script exists.
-If you the following command works::
+If the following command works::
ssh system0 date
@@ -364,7 +364,7 @@ systems must come first.
The kvm.sh ``--dryrun scenarios`` argument is useful for working out
how many scenarios may be run in one batch across a group of systems.
-You can also re-run a previous remote run in a manner similar to kvm.sh:
+You can also re-run a previous remote run in a manner similar to kvm.sh::
kvm-remote.sh "system0 system1 system2 system3 system4 system5" \
tools/testing/selftests/rcutorture/res/2022.11.03-11.26.28-remote \
diff --git a/Documentation/RCU/whatisRCU.rst b/Documentation/RCU/whatisRCU.rst
index 8eddef28d3a1..a1582bd653d1 100644
--- a/Documentation/RCU/whatisRCU.rst
+++ b/Documentation/RCU/whatisRCU.rst
@@ -15,6 +15,9 @@ to start learning about RCU:
| 2014 Big API Table https://lwn.net/Articles/609973/
| 6. The RCU API, 2019 Edition https://lwn.net/Articles/777036/
| 2019 Big API Table https://lwn.net/Articles/777165/
+| 7. The RCU API, 2024 Edition https://lwn.net/Articles/988638/
+| 2024 Background Information https://lwn.net/Articles/988641/
+| 2024 Big API Table https://lwn.net/Articles/988666/
For those preferring video:
@@ -59,8 +62,8 @@ experiment with should focus on Section 2. People who prefer to start
with example uses should focus on Sections 3 and 4. People who need to
understand the RCU implementation should focus on Section 5, then dive
into the kernel source code. People who reason best by analogy should
-focus on Section 6. Section 7 serves as an index to the docbook API
-documentation, and Section 8 is the traditional answer key.
+focus on Section 6 and 7. Section 8 serves as an index to the docbook
+API documentation, and Section 9 is the traditional answer key.
So, start with the section that makes the most sense to you and your
preferred method of learning. If you need to know everything about
@@ -172,14 +175,25 @@ rcu_read_lock()
critical section. Reference counts may be used in conjunction
with RCU to maintain longer-term references to data structures.
+ Note that anything that disables bottom halves, preemption,
+ or interrupts also enters an RCU read-side critical section.
+ Acquiring a spinlock also enters an RCU read-side critical
+ sections, even for spinlocks that do not disable preemption,
+ as is the case in kernels built with CONFIG_PREEMPT_RT=y.
+ Sleeplocks do *not* enter RCU read-side critical sections.
+
rcu_read_unlock()
^^^^^^^^^^^^^^^^^
void rcu_read_unlock(void);
This temporal primitives is used by a reader to inform the
reclaimer that the reader is exiting an RCU read-side critical
- section. Note that RCU read-side critical sections may be nested
- and/or overlapping.
+ section. Anything that enables bottom halves, preemption,
+ or interrupts also exits an RCU read-side critical section.
+ Releasing a spinlock also exits an RCU read-side critical section.
+
+ Note that RCU read-side critical sections may be nested and/or
+ overlapping.
synchronize_rcu()
^^^^^^^^^^^^^^^^^
@@ -239,21 +253,25 @@ rcu_assign_pointer()
^^^^^^^^^^^^^^^^^^^^
void rcu_assign_pointer(p, typeof(p) v);
- Yes, rcu_assign_pointer() **is** implemented as a macro, though it
- would be cool to be able to declare a function in this manner.
- (Compiler experts will no doubt disagree.)
+ Yes, rcu_assign_pointer() **is** implemented as a macro, though
+ it would be cool to be able to declare a function in this manner.
+ (And there has been some discussion of adding overloaded functions
+ to the C language, so who knows?)
The updater uses this spatial macro to assign a new value to an
RCU-protected pointer, in order to safely communicate the change
in value from the updater to the reader. This is a spatial (as
opposed to temporal) macro. It does not evaluate to an rvalue,
- but it does execute any memory-barrier instructions required
- for a given CPU architecture. Its ordering properties are that
- of a store-release operation.
-
- Perhaps just as important, it serves to document (1) which
- pointers are protected by RCU and (2) the point at which a
- given structure becomes accessible to other CPUs. That said,
+ but it does provide any compiler directives and memory-barrier
+ instructions required for a given compile or CPU architecture.
+ Its ordering properties are that of a store-release operation,
+ that is, any prior loads and stores required to initialize the
+ structure are ordered before the store that publishes the pointer
+ to that structure.
+
+ Perhaps just as important, rcu_assign_pointer() serves to document
+ (1) which pointers are protected by RCU and (2) the point at which
+ a given structure becomes accessible to other CPUs. That said,
rcu_assign_pointer() is most frequently used indirectly, via
the _rcu list-manipulation primitives such as list_add_rcu().
@@ -272,7 +290,11 @@ rcu_dereference()
executes any needed memory-barrier instructions for a given
CPU architecture. Currently, only Alpha needs memory barriers
within rcu_dereference() -- on other CPUs, it compiles to a
- volatile load.
+ volatile load. However, no mainstream C compilers respect
+ address dependencies, so rcu_dereference() uses volatile casts,
+ which, in combination with the coding guidelines listed in
+ rcu_dereference.rst, prevent current compilers from breaking
+ these dependencies.
Common coding practice uses rcu_dereference() to copy an
RCU-protected pointer to a local variable, then dereferences
@@ -416,7 +438,7 @@ their assorted primitives.
This section shows a simple use of the core RCU API to protect a
global pointer to a dynamically allocated structure. More-typical
-uses of RCU may be found in listRCU.rst, arrayRCU.rst, and NMI-RCU.rst.
+uses of RCU may be found in listRCU.rst and NMI-RCU.rst.
::
struct foo {
@@ -499,8 +521,8 @@ So, to sum up:
data item.
See checklist.rst for additional rules to follow when using RCU.
-And again, more-typical uses of RCU may be found in listRCU.rst,
-arrayRCU.rst, and NMI-RCU.rst.
+And again, more-typical uses of RCU may be found in listRCU.rst
+and NMI-RCU.rst.
.. _4_whatisRCU:
@@ -952,8 +974,18 @@ unfortunately any spinlock in a ``SLAB_TYPESAFE_BY_RCU`` object must be
initialized after each and every call to kmem_cache_alloc(), which renders
reference-free spinlock acquisition completely unsafe. Therefore, when
using ``SLAB_TYPESAFE_BY_RCU``, make proper use of a reference counter.
-(Those willing to use a kmem_cache constructor may also use locking,
-including cache-friendly sequence locking.)
+If using refcount_t, the specialized refcount_{add|inc}_not_zero_acquire()
+and refcount_set_release() APIs should be used to ensure correct operation
+ordering when verifying object identity and when initializing newly
+allocated objects. Acquire fence in refcount_{add|inc}_not_zero_acquire()
+ensures that identity checks happen *after* reference count is taken.
+refcount_set_release() should be called after a newly allocated object is
+fully initialized and release fence ensures that new values are visible
+*before* refcount can be successfully taken by other users. Once
+refcount_set_release() is called, the object should be considered visible
+by other tasks.
+(Those willing to initialize their locks in a kmem_cache constructor
+may also use locking, including cache-friendly sequence locking.)
With traditional reference counting -- such as that implemented by the
kref library in Linux -- there is typically code that runs when the last
@@ -989,32 +1021,41 @@ RCU list traversal::
list_entry_rcu
list_entry_lockless
list_first_entry_rcu
+ list_first_or_null_rcu
+ list_tail_rcu
list_next_rcu
+ list_next_or_null_rcu
list_for_each_entry_rcu
list_for_each_entry_continue_rcu
list_for_each_entry_from_rcu
- list_first_or_null_rcu
- list_next_or_null_rcu
+ list_for_each_entry_lockless
hlist_first_rcu
hlist_next_rcu
hlist_pprev_rcu
hlist_for_each_entry_rcu
+ hlist_for_each_entry_rcu_notrace
hlist_for_each_entry_rcu_bh
hlist_for_each_entry_from_rcu
hlist_for_each_entry_continue_rcu
hlist_for_each_entry_continue_rcu_bh
hlist_nulls_first_rcu
+ hlist_nulls_next_rcu
hlist_nulls_for_each_entry_rcu
+ hlist_nulls_for_each_entry_safe
hlist_bl_first_rcu
hlist_bl_for_each_entry_rcu
RCU pointer/list update::
rcu_assign_pointer
+ rcu_replace_pointer
+ INIT_LIST_HEAD_RCU
list_add_rcu
list_add_tail_rcu
list_del_rcu
list_replace_rcu
+ list_splice_init_rcu
+ list_splice_tail_init_rcu
hlist_add_behind_rcu
hlist_add_before_rcu
hlist_add_head_rcu
@@ -1022,34 +1063,53 @@ RCU pointer/list update::
hlist_del_rcu
hlist_del_init_rcu
hlist_replace_rcu
- list_splice_init_rcu
- list_splice_tail_init_rcu
hlist_nulls_del_init_rcu
hlist_nulls_del_rcu
hlist_nulls_add_head_rcu
+ hlist_nulls_add_tail_rcu
+ hlist_nulls_add_fake
+ hlists_swap_heads_rcu
hlist_bl_add_head_rcu
- hlist_bl_del_init_rcu
hlist_bl_del_rcu
hlist_bl_set_first_rcu
RCU::
- Critical sections Grace period Barrier
-
- rcu_read_lock synchronize_net rcu_barrier
- rcu_read_unlock synchronize_rcu
- rcu_dereference synchronize_rcu_expedited
- rcu_read_lock_held call_rcu
- rcu_dereference_check kfree_rcu
- rcu_dereference_protected
+ Critical sections Grace period Barrier
+
+ rcu_read_lock synchronize_net rcu_barrier
+ rcu_read_unlock synchronize_rcu
+ guard(rcu)() synchronize_rcu_expedited
+ scoped_guard(rcu) synchronize_rcu_mult
+ rcu_dereference call_rcu
+ rcu_dereference_check call_rcu_hurry
+ rcu_dereference_protected kfree_rcu
+ rcu_read_lock_held kvfree_rcu
+ rcu_read_lock_any_held kfree_rcu_mightsleep
+ rcu_pointer_handoff cond_synchronize_rcu
+ unrcu_pointer cond_synchronize_rcu_full
+ cond_synchronize_rcu_expedited
+ cond_synchronize_rcu_expedited_full
+ get_completed_synchronize_rcu
+ get_completed_synchronize_rcu_full
+ get_state_synchronize_rcu
+ get_state_synchronize_rcu_full
+ poll_state_synchronize_rcu
+ poll_state_synchronize_rcu_full
+ same_state_synchronize_rcu
+ same_state_synchronize_rcu_full
+ start_poll_synchronize_rcu
+ start_poll_synchronize_rcu_full
+ start_poll_synchronize_rcu_expedited
+ start_poll_synchronize_rcu_expedited_full
bh::
Critical sections Grace period Barrier
- rcu_read_lock_bh call_rcu rcu_barrier
- rcu_read_unlock_bh synchronize_rcu
- [local_bh_disable] synchronize_rcu_expedited
+ rcu_read_lock_bh [Same as RCU] [Same as RCU]
+ rcu_read_unlock_bh
+ [local_bh_disable]
[and friends]
rcu_dereference_bh
rcu_dereference_bh_check
@@ -1060,9 +1120,9 @@ sched::
Critical sections Grace period Barrier
- rcu_read_lock_sched call_rcu rcu_barrier
- rcu_read_unlock_sched synchronize_rcu
- [preempt_disable] synchronize_rcu_expedited
+ rcu_read_lock_sched [Same as RCU] [Same as RCU]
+ rcu_read_unlock_sched
+ [preempt_disable]
[and friends]
rcu_read_lock_sched_notrace
rcu_read_unlock_sched_notrace
@@ -1072,52 +1132,112 @@ sched::
rcu_read_lock_sched_held
+RCU: Initialization/cleanup/ordering::
+
+ RCU_INIT_POINTER
+ RCU_INITIALIZER
+ RCU_POINTER_INITIALIZER
+ init_rcu_head
+ destroy_rcu_head
+ init_rcu_head_on_stack
+ destroy_rcu_head_on_stack
+ SLAB_TYPESAFE_BY_RCU
+
+
+RCU: Quiescents states and control::
+
+ cond_resched_tasks_rcu_qs
+ rcu_all_qs
+ rcu_softirq_qs_periodic
+ rcu_end_inkernel_boot
+ rcu_expedite_gp
+ rcu_gp_is_expedited
+ rcu_unexpedite_gp
+ rcu_cpu_stall_reset
+ rcu_head_after_call_rcu
+ rcu_is_watching
+
+
+RCU-sync primitive::
+
+ rcu_sync_is_idle
+ rcu_sync_init
+ rcu_sync_enter
+ rcu_sync_exit
+ rcu_sync_dtor
+
+
RCU-Tasks::
- Critical sections Grace period Barrier
+ Critical sections Grace period Barrier
- N/A call_rcu_tasks rcu_barrier_tasks
+ N/A call_rcu_tasks rcu_barrier_tasks
synchronize_rcu_tasks
RCU-Tasks-Rude::
- Critical sections Grace period Barrier
+ Critical sections Grace period Barrier
- N/A call_rcu_tasks_rude rcu_barrier_tasks_rude
- synchronize_rcu_tasks_rude
+ N/A synchronize_rcu_tasks_rude rcu_barrier_tasks_rude
+ call_rcu_tasks_rude
RCU-Tasks-Trace::
- Critical sections Grace period Barrier
+ Critical sections Grace period Barrier
- rcu_read_lock_trace call_rcu_tasks_trace rcu_barrier_tasks_trace
+ rcu_read_lock_trace call_rcu_tasks_trace rcu_barrier_tasks_trace
rcu_read_unlock_trace synchronize_rcu_tasks_trace
+ guard(rcu_tasks_trace)()
+ scoped_guard(rcu_tasks_trace)
-SRCU::
+SRCU list traversal::
+ list_for_each_entry_srcu
+ hlist_for_each_entry_srcu
- Critical sections Grace period Barrier
- srcu_read_lock call_srcu srcu_barrier
- srcu_read_unlock synchronize_srcu
- srcu_dereference synchronize_srcu_expedited
+SRCU::
+
+ Critical sections Grace period Barrier
+
+ srcu_read_lock call_srcu srcu_barrier
+ srcu_read_unlock synchronize_srcu
+ srcu_read_lock_fast synchronize_srcu_expedited
+ srcu_read_unlock_fast get_state_synchronize_srcu
+ srcu_read_lock_nmisafe start_poll_synchronize_srcu
+ srcu_read_unlock_nmisafe start_poll_synchronize_srcu_expedited
+ srcu_read_lock_notrace poll_state_synchronize_srcu
+ srcu_read_unlock_notrace
+ srcu_down_read
+ srcu_up_read
+ srcu_down_read_fast
+ srcu_up_read_fast
+ guard(srcu)()
+ scoped_guard(srcu)
+ srcu_read_lock_held
+ srcu_dereference
srcu_dereference_check
+ srcu_dereference_notrace
srcu_read_lock_held
-SRCU: Initialization/cleanup::
+
+SRCU: Initialization/cleanup/ordering::
DEFINE_SRCU
DEFINE_STATIC_SRCU
+ DEFINE_SRCU_FAST // for srcu_read_lock_fast() and friends
+ DEFINE_STATIC_SRCU_FAST // for srcu_read_lock_fast() and friends
init_srcu_struct
+ init_srcu_struct_fast
cleanup_srcu_struct
+ smp_mb__after_srcu_read_unlock
All: lockdep-checked RCU utility APIs::
RCU_LOCKDEP_WARN
rcu_sleep_check
- RCU_NONIDLE
All: Unchecked RCU-protected pointer access::
diff --git a/Documentation/accel/amdxdna/amdnpu.rst b/Documentation/accel/amdxdna/amdnpu.rst
new file mode 100644
index 000000000000..42e54904f9a8
--- /dev/null
+++ b/Documentation/accel/amdxdna/amdnpu.rst
@@ -0,0 +1,281 @@
+.. SPDX-License-Identifier: GPL-2.0-only
+
+.. include:: <isonum.txt>
+
+=========
+ AMD NPU
+=========
+
+:Copyright: |copy| 2024 Advanced Micro Devices, Inc.
+:Author: Sonal Santan <sonal.santan@amd.com>
+
+Overview
+========
+
+AMD NPU (Neural Processing Unit) is a multi-user AI inference accelerator
+integrated into AMD client APU. NPU enables efficient execution of Machine
+Learning applications like CNN, LLM, etc. NPU is based on
+`AMD XDNA Architecture`_. NPU is managed by **amdxdna** driver.
+
+
+Hardware Description
+====================
+
+AMD NPU consists of the following hardware components:
+
+AMD XDNA Array
+--------------
+
+AMD XDNA Array comprises of 2D array of compute and memory tiles built with
+`AMD AI Engine Technology`_. Each column has 4 rows of compute tiles and 1
+row of memory tile. Each compute tile contains a VLIW processor with its own
+dedicated program and data memory. The memory tile acts as L2 memory. The 2D
+array can be partitioned at a column boundary creating a spatially isolated
+partition which can be bound to a workload context.
+
+Each column also has dedicated DMA engines to move data between host DDR and
+memory tile.
+
+AMD Phoenix and AMD Hawk Point client NPU have a 4x5 topology, i.e., 4 rows of
+compute tiles arranged into 5 columns. AMD Strix Point client APU have 4x8
+topology, i.e., 4 rows of compute tiles arranged into 8 columns.
+
+Shared L2 Memory
+----------------
+
+The single row of memory tiles create a pool of software managed on chip L2
+memory. DMA engines are used to move data between host DDR and memory tiles.
+AMD Phoenix and AMD Hawk Point NPUs have a total of 2560 KB of L2 memory.
+AMD Strix Point NPU has a total of 4096 KB of L2 memory.
+
+Microcontroller
+---------------
+
+A microcontroller runs NPU Firmware which is responsible for command processing,
+XDNA Array partition setup, XDNA Array configuration, workload context
+management and workload orchestration.
+
+NPU Firmware uses a dedicated instance of an isolated non-privileged context
+called ERT to service each workload context. ERT is also used to execute user
+provided ``ctrlcode`` associated with the workload context.
+
+NPU Firmware uses a single isolated privileged context called MERT to service
+management commands from the amdxdna driver.
+
+Mailboxes
+---------
+
+The microcontroller and amdxdna driver use a privileged channel for management
+tasks like setting up of contexts, telemetry, query, error handling, setting up
+user channel, etc. As mentioned before, privileged channel requests are
+serviced by MERT. The privileged channel is bound to a single mailbox.
+
+The microcontroller and amdxdna driver use a dedicated user channel per
+workload context. The user channel is primarily used for submitting work to
+the NPU. As mentioned before, a user channel requests are serviced by an
+instance of ERT. Each user channel is bound to its own dedicated mailbox.
+
+PCIe EP
+-------
+
+NPU is visible to the x86 host CPU as a PCIe device with multiple BARs and some
+MSI-X interrupt vectors. NPU uses a dedicated high bandwidth SoC level fabric
+for reading or writing into host memory. Each instance of ERT gets its own
+dedicated MSI-X interrupt. MERT gets a single instance of MSI-X interrupt.
+
+The number of PCIe BARs varies depending on the specific device. Based on their
+functions, PCIe BARs can generally be categorized into the following types.
+
+* PSP BAR: Expose the AMD PSP (Platform Security Processor) function
+* SMU BAR: Expose the AMD SMU (System Management Unit) function
+* SRAM BAR: Expose ring buffers for the mailbox
+* Mailbox BAR: Expose the mailbox control registers (head, tail and ISR
+ registers etc.)
+* Public Register BAR: Expose public registers
+
+On specific devices, the above-mentioned BAR type might be combined into a
+single physical PCIe BAR. Or a module might require two physical PCIe BARs to
+be fully functional. For example,
+
+* On AMD Phoenix device, PSP, SMU, Public Register BARs are on PCIe BAR index 0.
+* On AMD Strix Point device, Mailbox and Public Register BARs are on PCIe BAR
+ index 0. The PSP has some registers in PCIe BAR index 0 (Public Register BAR)
+ and PCIe BAR index 4 (PSP BAR).
+
+Process Isolation Hardware
+--------------------------
+
+As explained before, XDNA Array can be dynamically divided into isolated
+spatial partitions, each of which may have one or more columns. The spatial
+partition is setup by programming the column isolation registers by the
+microcontroller. Each spatial partition is associated with a PASID which is
+also programmed by the microcontroller. Hence multiple spatial partitions in
+the NPU can make concurrent host access protected by PASID.
+
+The NPU FW itself uses microcontroller MMU enforced isolated contexts for
+servicing user and privileged channel requests.
+
+
+Mixed Spatial and Temporal Scheduling
+=====================================
+
+AMD XDNA architecture supports mixed spatial and temporal (time sharing)
+scheduling of 2D array. This means that spatial partitions may be setup and
+torn down dynamically to accommodate various workloads. A *spatial* partition
+may be *exclusively* bound to one workload context while another partition may
+be *temporarily* bound to more than one workload contexts. The microcontroller
+updates the PASID for a temporarily shared partition to match the context that
+has been bound to the partition at any moment.
+
+Resource Solver
+---------------
+
+The Resource Solver component of the amdxdna driver manages the allocation
+of 2D array among various workloads. Every workload describes the number
+of columns required to run the NPU binary in its metadata. The Resource Solver
+component uses hints passed by the workload and its own heuristics to
+decide 2D array (re)partition strategy and mapping of workloads for spatial and
+temporal sharing of columns. The FW enforces the context-to-column(s) resource
+binding decisions made by the Resource Solver.
+
+AMD Phoenix and AMD Hawk Point client NPU can support 6 concurrent workload
+contexts. AMD Strix Point can support 16 concurrent workload contexts.
+
+
+Application Binaries
+====================
+
+A NPU application workload is comprised of two separate binaries which are
+generated by the NPU compiler.
+
+1. AMD XDNA Array overlay, which is used to configure a NPU spatial partition.
+ The overlay contains instructions for setting up the stream switch
+ configuration and ELF for the compute tiles. The overlay is loaded on the
+ spatial partition bound to the workload by the associated ERT instance.
+ Refer to the
+ `Versal Adaptive SoC AIE-ML Architecture Manual (AM020)`_ for more details.
+
+2. ``ctrlcode``, used for orchestrating the overlay loaded on the spatial
+ partition. ``ctrlcode`` is executed by the ERT running in protected mode on
+ the microcontroller in the context of the workload. ``ctrlcode`` is made up
+ of a sequence of opcodes named ``XAie_TxnOpcode``. Refer to the
+ `AI Engine Run Time`_ for more details.
+
+
+Special Host Buffers
+====================
+
+Per-context Instruction Buffer
+------------------------------
+
+Every workload context uses a host resident 64 MB buffer which is memory
+mapped into the ERT instance created to service the workload. The ``ctrlcode``
+used by the workload is copied into this special memory. This buffer is
+protected by PASID like all other input/output buffers used by that workload.
+Instruction buffer is also mapped into the user space of the workload.
+
+Global Privileged Buffer
+------------------------
+
+In addition, the driver also allocates a single buffer for maintenance tasks
+like recording errors from MERT. This global buffer uses the global IOMMU
+domain and is only accessible by MERT.
+
+
+High-level Use Flow
+===================
+
+Here are the steps to run a workload on AMD NPU:
+
+1. Compile the workload into an overlay and a ``ctrlcode`` binary.
+2. Userspace opens a context in the driver and provides the overlay.
+3. The driver checks with the Resource Solver for provisioning a set of columns
+ for the workload.
+4. The driver then asks MERT to create a context on the device with the desired
+ columns.
+5. MERT then creates an instance of ERT. MERT also maps the Instruction Buffer
+ into ERT memory.
+6. The userspace then copies the ``ctrlcode`` to the Instruction Buffer.
+7. Userspace then creates a command buffer with pointers to input, output, and
+ instruction buffer; it then submits command buffer with the driver and goes
+ to sleep waiting for completion.
+8. The driver sends the command over the Mailbox to ERT.
+9. ERT *executes* the ``ctrlcode`` in the instruction buffer.
+10. Execution of the ``ctrlcode`` kicks off DMAs to and from the host DDR while
+ AMD XDNA Array is running.
+11. When ERT reaches end of ``ctrlcode``, it raises an MSI-X to send completion
+ signal to the driver which then wakes up the waiting workload.
+
+
+Boot Flow
+=========
+
+amdxdna driver uses PSP to securely load signed NPU FW and kick off the boot
+of the NPU microcontroller. amdxdna driver then waits for the alive signal in
+a special location on BAR 0. The NPU is switched off during SoC suspend and
+turned on after resume where the NPU FW is reloaded, and the handshake is
+performed again.
+
+
+Userspace components
+====================
+
+Compiler
+--------
+
+Peano is an LLVM based open-source single core compiler for AMD XDNA Array
+compute tile. Peano is available at:
+https://github.com/Xilinx/llvm-aie
+
+IRON is an open-source array compiler for AMD XDNA Array based NPU which uses
+Peano underneath. IRON is available at:
+https://github.com/Xilinx/mlir-aie
+
+Usermode Driver (UMD)
+---------------------
+
+The open-source XRT runtime stack interfaces with amdxdna kernel driver. XRT
+can be found at:
+https://github.com/Xilinx/XRT
+
+The open-source XRT shim for NPU is can be found at:
+https://github.com/amd/xdna-driver
+
+
+DMA Operation
+=============
+
+DMA operation instructions are encoded in the ``ctrlcode`` as
+``XAIE_IO_BLOCKWRITE`` opcode. When ERT executes ``XAIE_IO_BLOCKWRITE``, DMA
+operations between host DDR and L2 memory are effected.
+
+
+Error Handling
+==============
+
+When MERT detects an error in AMD XDNA Array, it pauses execution for that
+workload context and sends an asynchronous message to the driver over the
+privileged channel. The driver then sends a buffer pointer to MERT to capture
+the register states for the partition bound to faulting workload context. The
+driver then decodes the error by reading the contents of the buffer pointer.
+
+
+Telemetry
+=========
+
+MERT can report various kinds of telemetry information like the following:
+
+* L1 interrupt counter
+* DMA counter
+* Deep Sleep counter
+* etc.
+
+
+References
+==========
+
+- `AMD XDNA Architecture <https://www.amd.com/en/technologies/xdna.html>`_
+- `AMD AI Engine Technology <https://www.xilinx.com/products/technology/ai-engine.html>`_
+- `Peano <https://github.com/Xilinx/llvm-aie>`_
+- `Versal Adaptive SoC AIE-ML Architecture Manual (AM020) <https://docs.amd.com/r/en-US/am020-versal-aie-ml>`_
+- `AI Engine Run Time <https://github.com/Xilinx/aie-rt/tree/release/main_aig>`_
diff --git a/Documentation/accel/amdxdna/index.rst b/Documentation/accel/amdxdna/index.rst
new file mode 100644
index 000000000000..38c16939f1fc
--- /dev/null
+++ b/Documentation/accel/amdxdna/index.rst
@@ -0,0 +1,11 @@
+.. SPDX-License-Identifier: GPL-2.0-only
+
+=====================================
+ accel/amdxdna NPU driver
+=====================================
+
+The accel/amdxdna driver supports the AMD NPU (Neural Processing Unit).
+
+.. toctree::
+
+ amdnpu
diff --git a/Documentation/accel/index.rst b/Documentation/accel/index.rst
index e94a0160b6a0..d8fa332d60a8 100644
--- a/Documentation/accel/index.rst
+++ b/Documentation/accel/index.rst
@@ -8,7 +8,9 @@ Compute Accelerators
:maxdepth: 1
introduction
+ amdxdna/index
qaic/index
+ rocket/index
.. only:: subproject and html
diff --git a/Documentation/accel/introduction.rst b/Documentation/accel/introduction.rst
index 89984dfececf..ae3030136637 100644
--- a/Documentation/accel/introduction.rst
+++ b/Documentation/accel/introduction.rst
@@ -101,8 +101,8 @@ External References
email threads
-------------
-* `Initial discussion on the New subsystem for acceleration devices <https://lkml.org/lkml/2022/7/31/83>`_ - Oded Gabbay (2022)
-* `patch-set to add the new subsystem <https://lkml.org/lkml/2022/10/22/544>`_ - Oded Gabbay (2022)
+* `Initial discussion on the New subsystem for acceleration devices <https://lore.kernel.org/lkml/CAFCwf11=9qpNAepL7NL+YAV_QO=Wv6pnWPhKHKAepK3fNn+2Dg@mail.gmail.com/>`_ - Oded Gabbay (2022)
+* `patch-set to add the new subsystem <https://lore.kernel.org/lkml/20221022214622.18042-1-ogabbay@kernel.org/>`_ - Oded Gabbay (2022)
Conference talks
----------------
diff --git a/Documentation/accel/qaic/aic080.rst b/Documentation/accel/qaic/aic080.rst
new file mode 100644
index 000000000000..d563771ea6ce
--- /dev/null
+++ b/Documentation/accel/qaic/aic080.rst
@@ -0,0 +1,14 @@
+.. SPDX-License-Identifier: GPL-2.0-only
+
+===============================
+ Qualcomm Cloud AI 80 (AIC080)
+===============================
+
+Overview
+========
+
+The Qualcomm Cloud AI 80/AIC080 family of products are a derivative of AIC100.
+The number of NSPs and clock rates are reduced to fit within resource
+constrained solutions. The PCIe Product ID is 0xa080.
+
+As a derivative product, all AIC100 documentation applies.
diff --git a/Documentation/accel/qaic/aic100.rst b/Documentation/accel/qaic/aic100.rst
index c80d0f1307db..41331cf580b1 100644
--- a/Documentation/accel/qaic/aic100.rst
+++ b/Documentation/accel/qaic/aic100.rst
@@ -36,8 +36,9 @@ AIC100 DID (0xa100).
AIC100 does not implement FLR (function level reset).
-AIC100 implements MSI but does not implement MSI-X. AIC100 requires 17 MSIs to
-operate (1 for MHI, 16 for the DMA Bridge).
+AIC100 implements MSI but does not implement MSI-X. AIC100 prefers 17 MSIs to
+operate (1 for MHI, 16 for the DMA Bridge). Falling back to 1 MSI is possible in
+scenarios where reserving 32 MSIs isn't feasible.
As a PCIe device, AIC100 utilizes BARs to provide host interfaces to the device
hardware. AIC100 provides 3, 64-bit BARs.
@@ -220,10 +221,16 @@ of the defined channels, and their uses.
+----------------+---------+----------+----------------------------------------+
| QAIC_DEBUG | 18 & 19 | AMSS | Not used. |
+----------------+---------+----------+----------------------------------------+
-| QAIC_TIMESYNC | 20 & 21 | SBL/AMSS | Used to synchronize timestamps in the |
+| QAIC_TIMESYNC | 20 & 21 | SBL | Used to synchronize timestamps in the |
| | | | device side logs with the host time |
| | | | source. |
+----------------+---------+----------+----------------------------------------+
+| QAIC_TIMESYNC | 22 & 23 | AMSS | Used to periodically synchronize |
+| _PERIODIC | | | timestamps in the device side logs with|
+| | | | the host time source. |
++----------------+---------+----------+----------------------------------------+
+| IPCR | 24 & 25 | AMSS | AF_QIPCRTR clients and servers. |
++----------------+---------+----------+----------------------------------------+
DMA Bridge
==========
@@ -480,8 +487,8 @@ one user crashes, the fallout of that should be limited to that workload and not
impact other workloads. SSR accomplishes this.
If a particular workload crashes, QSM notifies the host via the QAIC_SSR MHI
-channel. This notification identifies the workload by it's assigned DBC. A
-multi-stage recovery process is then used to cleanup both sides, and get the
+channel. This notification identifies the workload by its assigned DBC. A
+multi-stage recovery process is then used to cleanup both sides, and gets the
DBC/NSPs into a working state.
When SSR occurs, any state in the workload is lost. Any inputs that were in
@@ -489,6 +496,27 @@ process, or queued by not yet serviced, are lost. The loaded artifacts will
remain in on-card DDR, but the host will need to re-activate the workload if
it desires to recover the workload.
+When SSR occurs for a specific NSP, the assigned DBC goes through the
+following state transactions in order:
+
+DBC_STATE_BEFORE_SHUTDOWN
+ Indicates that the affected NSP was found in an unrecoverable error
+ condition.
+DBC_STATE_AFTER_SHUTDOWN
+ Indicates that the NSP is under reset.
+DBC_STATE_BEFORE_POWER_UP
+ Indicates that the NSP's debug information has been collected, and is
+ ready to be collected by the host (if desired). At that stage the NSP
+ is restarted by QSM.
+DBC_STATE_AFTER_POWER_UP
+ Indicates that the NSP has been restarted, fully operational and is
+ in idle state.
+
+SSR also has an optional crashdump collection feature. If enabled, the host can
+collect the memory dump for the crashed NSP and dump it to the user space via
+the dev_coredump subsystem. The host can also decline the crashdump collection
+request from the device.
+
Reliability, Accessibility, Serviceability (RAS)
================================================
diff --git a/Documentation/accel/qaic/index.rst b/Documentation/accel/qaic/index.rst
index ad19b88d1a66..967b9dd8bace 100644
--- a/Documentation/accel/qaic/index.rst
+++ b/Documentation/accel/qaic/index.rst
@@ -10,4 +10,5 @@ accelerator cards.
.. toctree::
qaic
+ aic080
aic100
diff --git a/Documentation/accel/qaic/qaic.rst b/Documentation/accel/qaic/qaic.rst
index 72a70ab6e3a8..ef27e262cb91 100644
--- a/Documentation/accel/qaic/qaic.rst
+++ b/Documentation/accel/qaic/qaic.rst
@@ -10,6 +10,9 @@ accelerator products.
Interrupts
==========
+IRQ Storm Mitigation
+--------------------
+
While the AIC100 DMA Bridge hardware implements an IRQ storm mitigation
mechanism, it is still possible for an IRQ storm to occur. A storm can happen
if the workload is particularly quick, and the host is responsive. If the host
@@ -33,15 +36,35 @@ polling mode and reenables the IRQ line.
This mitigation in QAIC is very effective. The same lprnet usecase that
generates 100k IRQs per second (per /proc/interrupts) is reduced to roughly 64
IRQs over 5 minutes while keeping the host system stable, and having the same
-workload throughput performance (within run to run noise variation).
+workload throughput performance (within run-to-run noise variation).
+
+Single MSI Mode
+---------------
+
+MultiMSI is not well supported on all systems; virtualized ones even less so
+(circa 2023). Between hypervisors masking the PCIe MSI capability structure to
+large memory requirements for vIOMMUs (required for supporting MultiMSI), it is
+useful to be able to fall back to a single MSI when needed.
+
+To support this fallback, we allow the case where only one MSI is able to be
+allocated, and share that one MSI between MHI and the DBCs. The device detects
+when only one MSI has been configured and directs the interrupts for the DBCs
+to the interrupt normally used for MHI. Unfortunately, this means that the
+interrupt handlers for every DBC and MHI wake up for every interrupt that
+arrives; however, the DBC threaded irq handlers only are started when work to be
+done is detected (MHI will always start its threaded handler).
+
+If the DBC is configured to force MSI interrupts, this can circumvent the
+software IRQ storm mitigation mentioned above. Since the MSI is shared it is
+never disabled, allowing each new entry to the FIFO to trigger a new interrupt.
Neural Network Control (NNC) Protocol
=====================================
-The implementation of NNC is split between the KMD (QAIC) and UMD. In general
+The implementation of NNC is split between the KMD (QAIC) and UMD. In general,
QAIC understands how to encode/decode NNC wire protocol, and elements of the
-protocol which require kernel space knowledge to process (for example, mapping
+protocol which requires kernel space knowledge to process (for example, mapping
host memory to device IOVAs). QAIC understands the structure of a message, and
all of the transactions. QAIC does not understand commands (the payload of a
passthrough transaction).
@@ -70,8 +93,15 @@ commands (does not impact QAIC).
uAPI
====
+QAIC creates an accel device per physical PCIe device. This accel device exists
+for as long as the PCIe device is known to Linux.
+
+The PCIe device may not be in the state to accept requests from userspace at
+all times. QAIC will trigger KOBJ_ONLINE/OFFLINE uevents to advertise when the
+device can accept requests (ONLINE) and when the device is no longer accepting
+requests (OFFLINE) because of a reset or other state transition.
+
QAIC defines a number of driver specific IOCTLs as part of the userspace API.
-This section describes those APIs.
DRM_IOCTL_QAIC_MANAGE
This IOCTL allows userspace to send a NNC request to the QSM. The call will
@@ -117,11 +147,15 @@ DRM_IOCTL_QAIC_PERF_STATS_BO
recent execution of a BO. This allows userspace to construct an end to end
timeline of the BO processing for a performance analysis.
-DRM_IOCTL_QAIC_PART_DEV
- This IOCTL allows userspace to request a duplicate "shadow device". This extra
- accelN device is associated with a specific partition of resources on the
- AIC100 device and can be used for limiting a process to some subset of
- resources.
+DRM_IOCTL_QAIC_DETACH_SLICE_BO
+ This IOCTL allows userspace to remove the slicing information from a BO that
+ was originally provided by a call to DRM_IOCTL_QAIC_ATTACH_SLICE_BO. This
+ is the inverse of DRM_IOCTL_QAIC_ATTACH_SLICE_BO. The BO must be idle for
+ DRM_IOCTL_QAIC_DETACH_SLICE_BO to be called. After a successful detach slice
+ operation the BO may have new slicing information attached with a new call
+ to DRM_IOCTL_QAIC_ATTACH_SLICE_BO. After detach slice, the BO cannot be
+ executed until after a new attach slice operation. Combining attach slice
+ and detach slice calls allows userspace to use a BO with multiple workloads.
Userspace Client Isolation
==========================
@@ -168,3 +202,8 @@ overrides this for that call. Default is 5000 (5 seconds).
Sets the polling interval in microseconds (us) when datapath polling is active.
Takes effect at the next polling interval. Default is 100 (100 us).
+
+**timesync_delay_ms (unsigned int)**
+
+Sets the time interval in milliseconds (ms) between two consecutive timesync
+operations. Default is 1000 (1000 ms).
diff --git a/Documentation/accel/rocket/index.rst b/Documentation/accel/rocket/index.rst
new file mode 100644
index 000000000000..70f97bccf100
--- /dev/null
+++ b/Documentation/accel/rocket/index.rst
@@ -0,0 +1,19 @@
+.. SPDX-License-Identifier: GPL-2.0-only
+
+=====================================
+ accel/rocket Rockchip NPU driver
+=====================================
+
+The accel/rocket driver supports the Neural Processing Units (NPUs) inside some
+Rockchip SoCs such as the RK3588. Rockchip calls it RKNN and sometimes RKNPU.
+
+The hardware is described in chapter 36 in the RK3588 TRM.
+
+This driver just powers the hardware on and off, allocates and maps buffers to
+the device and submits jobs to the frontend unit. Everything else is done in
+userspace, as a Gallium driver (also called rocket) that is part of the Mesa3D
+project.
+
+Hardware currently supported:
+
+* RK3588
diff --git a/Documentation/accounting/delay-accounting.rst b/Documentation/accounting/delay-accounting.rst
index f61c01fc376e..86d7902a657f 100644
--- a/Documentation/accounting/delay-accounting.rst
+++ b/Documentation/accounting/delay-accounting.rst
@@ -100,29 +100,29 @@ Get delays, since system boot, for pid 10::
# ./getdelays -d -p 10
(output similar to next case)
-Get sum of delays, since system boot, for all pids with tgid 5::
+Get sum and peak of delays, since system boot, for all pids with tgid 242::
- # ./getdelays -d -t 5
+ bash-4.4# ./getdelays -d -t 242
print delayacct stats ON
- TGID 5
-
-
- CPU count real total virtual total delay total delay average
- 8 7000000 6872122 3382277 0.423ms
- IO count delay total delay average
- 0 0 0.000ms
- SWAP count delay total delay average
- 0 0 0.000ms
- RECLAIM count delay total delay average
- 0 0 0.000ms
- THRASHING count delay total delay average
- 0 0 0.000ms
- COMPACT count delay total delay average
- 0 0 0.000ms
- WPCOPY count delay total delay average
- 0 0 0.000ms
- IRQ count delay total delay average
- 0 0 0.000ms
+ TGID 242
+
+
+ CPU count real total virtual total delay total delay average delay max delay min
+ 39 156000000 156576579 2111069 0.054ms 0.212296ms 0.031307ms
+ IO count delay total delay average delay max delay min
+ 0 0 0.000ms 0.000000ms 0.000000ms
+ SWAP count delay total delay average delay max delay min
+ 0 0 0.000ms 0.000000ms 0.000000ms
+ RECLAIM count delay total delay average delay max delay min
+ 0 0 0.000ms 0.000000ms 0.000000ms
+ THRASHING count delay total delay average delay max delay min
+ 0 0 0.000ms 0.000000ms 0.000000ms
+ COMPACT count delay total delay average delay max delay min
+ 0 0 0.000ms 0.000000ms 0.000000ms
+ WPCOPY count delay total delay average delay max delay min
+ 156 11215873 0.072ms 0.207403ms 0.033913ms
+ IRQ count delay total delay average delay max delay min
+ 0 0 0.000ms 0.000000ms 0.000000ms
Get IO accounting for pid 1, it works only with -p::
@@ -131,3 +131,84 @@ Get IO accounting for pid 1, it works only with -p::
linuxrc: read=65536, write=0, cancelled_write=0
The above command can be used with -v to get more debug information.
+
+After the system starts, use `delaytop` to get the system-wide delay information,
+which includes system-wide PSI information and Top-N high-latency tasks.
+Note: PSI support requires `CONFIG_PSI=y` and `psi=1` for full functionality.
+
+`delaytop` is an interactive tool for monitoring system pressure and task delays.
+It supports multiple sorting options, display modes, and real-time keyboard controls.
+
+Basic usage with default settings (sorts by CPU delay, shows top 20 tasks, refreshes every 2 seconds)::
+
+ bash# ./delaytop
+ System Pressure Information: (avg10/avg60vg300/total)
+ CPU some: 0.0%/ 0.0%/ 0.0%/ 106137(ms)
+ CPU full: 0.0%/ 0.0%/ 0.0%/ 0(ms)
+ Memory full: 0.0%/ 0.0%/ 0.0%/ 0(ms)
+ Memory some: 0.0%/ 0.0%/ 0.0%/ 0(ms)
+ IO full: 0.0%/ 0.0%/ 0.0%/ 2240(ms)
+ IO some: 0.0%/ 0.0%/ 0.0%/ 2783(ms)
+ IRQ full: 0.0%/ 0.0%/ 0.0%/ 0(ms)
+ [o]sort [M]memverbose [q]quit
+ Top 20 processes (sorted by cpu delay):
+ PID TGID COMMAND CPU(ms) IO(ms) IRQ(ms) MEM(ms)
+ ------------------------------------------------------------------------
+ 110 110 kworker/15:0H-s 27.91 0.00 0.00 0.00
+ 57 57 cpuhp/7 3.18 0.00 0.00 0.00
+ 99 99 cpuhp/14 2.97 0.00 0.00 0.00
+ 51 51 cpuhp/6 0.90 0.00 0.00 0.00
+ 44 44 kworker/4:0H-sy 0.80 0.00 0.00 0.00
+ 60 60 ksoftirqd/7 0.74 0.00 0.00 0.00
+ 76 76 idle_inject/10 0.31 0.00 0.00 0.00
+ 100 100 idle_inject/14 0.30 0.00 0.00 0.00
+ 1309 1309 systemsettings 0.29 0.00 0.00 0.00
+ 45 45 cpuhp/5 0.22 0.00 0.00 0.00
+ 63 63 cpuhp/8 0.20 0.00 0.00 0.00
+ 87 87 cpuhp/12 0.18 0.00 0.00 0.00
+ 93 93 cpuhp/13 0.17 0.00 0.00 0.00
+ 1265 1265 acpid 0.17 0.00 0.00 0.00
+ 1552 1552 sshd 0.17 0.00 0.00 0.00
+ 2584 2584 sddm-helper 0.16 0.00 0.00 0.00
+ 1284 1284 rtkit-daemon 0.15 0.00 0.00 0.00
+ 1326 1326 nde-netfilter 0.14 0.00 0.00 0.00
+ 27 27 cpuhp/2 0.13 0.00 0.00 0.00
+ 631 631 kworker/11:2-rc 0.11 0.00 0.00 0.00
+
+Interactive keyboard controls during runtime::
+
+ o - Select sort field (CPU, IO, IRQ, Memory, etc.)
+ M - Toggle display mode (Default/Memory Verbose)
+ q - Quit
+
+Available sort fields(use -s/--sort or interactive command)::
+
+ cpu(c) - CPU delay
+ blkio(i) - I/O delay
+ irq(q) - IRQ delay
+ mem(m) - Total memory delay
+ swapin(s) - Swapin delay (memory verbose mode only)
+ freepages(r) - Freepages reclaim delay (memory verbose mode only)
+ thrashing(t) - Thrashing delay (memory verbose mode only)
+ compact(p) - Compaction delay (memory verbose mode only)
+ wpcopy(w) - Write page copy delay (memory verbose mode only)
+
+Advanced usage examples::
+
+ # ./delaytop -s blkio
+ Sorted by IO delay
+
+ # ./delaytop -s mem -M
+ Sorted by memory delay in memory verbose mode
+
+ # ./delaytop -p pid
+ Print delayacct stats
+
+ # ./delaytop -P num
+ Display the top N tasks
+
+ # ./delaytop -n num
+ Set delaytop refresh frequency (num times)
+
+ # ./delaytop -d secs
+ Specify refresh interval as secs
diff --git a/Documentation/accounting/psi.rst b/Documentation/accounting/psi.rst
index df6062eb3abb..d455db3e5808 100644
--- a/Documentation/accounting/psi.rst
+++ b/Documentation/accounting/psi.rst
@@ -178,7 +178,7 @@ Userspace monitor usage example
Cgroup2 interface
=================
-In a system with a CONFIG_CGROUP=y kernel and the cgroup2 filesystem
+In a system with a CONFIG_CGROUPS=y kernel and the cgroup2 filesystem
mounted, pressure stall information is also tracked for tasks grouped
into cgroups. Each subdirectory in the cgroupfs mountpoint contains
cpu.pressure, memory.pressure, and io.pressure files; the format is
diff --git a/Documentation/accounting/taskstats-struct.rst b/Documentation/accounting/taskstats-struct.rst
index ca90fd489c9a..acca51c34157 100644
--- a/Documentation/accounting/taskstats-struct.rst
+++ b/Documentation/accounting/taskstats-struct.rst
@@ -47,7 +47,7 @@ should not change the relative position of each field within the struct.
1) Common and basic accounting fields::
/* The version number of this struct. This field is always set to
- * TAKSTATS_VERSION, which is defined in <linux/taskstats.h>.
+ * TASKSTATS_VERSION, which is defined in <linux/taskstats.h>.
* Each time the struct is changed, the value should be incremented.
*/
__u16 version;
diff --git a/Documentation/accounting/taskstats.rst b/Documentation/accounting/taskstats.rst
index 2a28b7f55c10..173c1e7bf5ef 100644
--- a/Documentation/accounting/taskstats.rst
+++ b/Documentation/accounting/taskstats.rst
@@ -76,41 +76,43 @@ The messages are in the format::
The taskstats payload is one of the following three kinds:
1. Commands: Sent from user to kernel. Commands to get data on
-a pid/tgid consist of one attribute, of type TASKSTATS_CMD_ATTR_PID/TGID,
-containing a u32 pid or tgid in the attribute payload. The pid/tgid denotes
-the task/process for which userspace wants statistics.
-
-Commands to register/deregister interest in exit data from a set of cpus
-consist of one attribute, of type
-TASKSTATS_CMD_ATTR_REGISTER/DEREGISTER_CPUMASK and contain a cpumask in the
-attribute payload. The cpumask is specified as an ascii string of
-comma-separated cpu ranges e.g. to listen to exit data from cpus 1,2,3,5,7,8
-the cpumask would be "1-3,5,7-8". If userspace forgets to deregister interest
-in cpus before closing the listening socket, the kernel cleans up its interest
-set over time. However, for the sake of efficiency, an explicit deregistration
-is advisable.
+ a pid/tgid consist of one attribute, of type TASKSTATS_CMD_ATTR_PID/TGID,
+ containing a u32 pid or tgid in the attribute payload. The pid/tgid denotes
+ the task/process for which userspace wants statistics.
+
+ Commands to register/deregister interest in exit data from a set of cpus
+ consist of one attribute, of type
+ TASKSTATS_CMD_ATTR_REGISTER/DEREGISTER_CPUMASK and contain a cpumask in the
+ attribute payload. The cpumask is specified as an ascii string of
+ comma-separated cpu ranges e.g. to listen to exit data from cpus 1,2,3,5,7,8
+ the cpumask would be "1-3,5,7-8". If userspace forgets to deregister
+ interest in cpus before closing the listening socket, the kernel cleans up
+ its interest set over time. However, for the sake of efficiency, an explicit
+ deregistration is advisable.
2. Response for a command: sent from the kernel in response to a userspace
-command. The payload is a series of three attributes of type:
+ command. The payload is a series of three attributes of type:
-a) TASKSTATS_TYPE_AGGR_PID/TGID : attribute containing no payload but indicates
-a pid/tgid will be followed by some stats.
+ a) TASKSTATS_TYPE_AGGR_PID/TGID: attribute containing no payload but
+ indicates a pid/tgid will be followed by some stats.
-b) TASKSTATS_TYPE_PID/TGID: attribute whose payload is the pid/tgid whose stats
-are being returned.
+ b) TASKSTATS_TYPE_PID/TGID: attribute whose payload is the pid/tgid whose
+ stats are being returned.
-c) TASKSTATS_TYPE_STATS: attribute with a struct taskstats as payload. The
-same structure is used for both per-pid and per-tgid stats.
+ c) TASKSTATS_TYPE_STATS: attribute with a struct taskstats as payload. The
+ same structure is used for both per-pid and per-tgid stats.
3. New message sent by kernel whenever a task exits. The payload consists of a
series of attributes of the following type:
-a) TASKSTATS_TYPE_AGGR_PID: indicates next two attributes will be pid+stats
-b) TASKSTATS_TYPE_PID: contains exiting task's pid
-c) TASKSTATS_TYPE_STATS: contains the exiting task's per-pid stats
-d) TASKSTATS_TYPE_AGGR_TGID: indicates next two attributes will be tgid+stats
-e) TASKSTATS_TYPE_TGID: contains tgid of process to which task belongs
-f) TASKSTATS_TYPE_STATS: contains the per-tgid stats for exiting task's process
+ a) TASKSTATS_TYPE_AGGR_PID: indicates next two attributes will be pid+stats
+ b) TASKSTATS_TYPE_PID: contains exiting task's pid
+ c) TASKSTATS_TYPE_STATS: contains the exiting task's per-pid stats
+ d) TASKSTATS_TYPE_AGGR_TGID: indicates next two attributes will be
+ tgid+stats
+ e) TASKSTATS_TYPE_TGID: contains tgid of process to which task belongs
+ f) TASKSTATS_TYPE_STATS: contains the per-tgid stats for exiting task's
+ process
per-tgid stats
diff --git a/Documentation/admin-guide/LSM/SELinux.rst b/Documentation/admin-guide/LSM/SELinux.rst
index 520a1c2c6fd2..cdd65164ca96 100644
--- a/Documentation/admin-guide/LSM/SELinux.rst
+++ b/Documentation/admin-guide/LSM/SELinux.rst
@@ -2,6 +2,17 @@
SELinux
=======
+Information about the SELinux kernel subsystem can be found at the
+following links:
+
+ https://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux.git/tree/README.md
+
+ https://github.com/selinuxproject/selinux-kernel/wiki
+
+Information about the SELinux userspace can be found at:
+
+ https://github.com/SELinuxProject/selinux/wiki
+
If you want to use SELinux, chances are you will want
to use the distro-provided policies, or install the
latest reference policy release from
diff --git a/Documentation/admin-guide/LSM/SafeSetID.rst b/Documentation/admin-guide/LSM/SafeSetID.rst
index 0ec34863c674..6d439c987563 100644
--- a/Documentation/admin-guide/LSM/SafeSetID.rst
+++ b/Documentation/admin-guide/LSM/SafeSetID.rst
@@ -41,7 +41,7 @@ namespace). The higher level goal is to allow for uid-based sandboxing of system
services without having to give out CAP_SETUID all over the place just so that
non-root programs can drop to even-lesser-privileged uids. This is especially
relevant when one non-root daemon on the system should be allowed to spawn other
-processes as different uids, but its undesirable to give the daemon a
+processes as different uids, but it's undesirable to give the daemon a
basically-root-equivalent CAP_SETUID.
diff --git a/Documentation/admin-guide/LSM/Smack.rst b/Documentation/admin-guide/LSM/Smack.rst
index 6d44f4fdbf59..c5ed775f2d10 100644
--- a/Documentation/admin-guide/LSM/Smack.rst
+++ b/Documentation/admin-guide/LSM/Smack.rst
@@ -601,10 +601,15 @@ specification.
Task Attribute
~~~~~~~~~~~~~~
-The Smack label of a process can be read from /proc/<pid>/attr/current. A
-process can read its own Smack label from /proc/self/attr/current. A
+The Smack label of a process can be read from ``/proc/<pid>/attr/current``. A
+process can read its own Smack label from ``/proc/self/attr/current``. A
privileged process can change its own Smack label by writing to
-/proc/self/attr/current but not the label of another process.
+``/proc/self/attr/current`` but not the label of another process.
+
+Format of writing is : only the label or the label followed by one of the
+3 trailers: ``\n`` (by common agreement for ``/proc/...`` interfaces),
+``\0`` (because some applications incorrectly include it),
+``\n\0`` (because we think some applications may incorrectly include it).
File Attribute
~~~~~~~~~~~~~~
@@ -696,6 +701,11 @@ sockets.
A privileged program may set this to match the label of another
task with which it hopes to communicate.
+UNIX domain socket (UDS) with a BSD address functions both as a file in a
+filesystem and as a socket. As a file, it carries the SMACK64 attribute. This
+attribute is not involved in Smack security enforcement and is immutably
+assigned the label "*".
+
Smack Netlabel Exceptions
~~~~~~~~~~~~~~~~~~~~~~~~~
diff --git a/Documentation/admin-guide/LSM/apparmor.rst b/Documentation/admin-guide/LSM/apparmor.rst
index 6cf81bbd7ce8..47939ee89d74 100644
--- a/Documentation/admin-guide/LSM/apparmor.rst
+++ b/Documentation/admin-guide/LSM/apparmor.rst
@@ -18,8 +18,11 @@ set ``CONFIG_SECURITY_APPARMOR=y``
If AppArmor should be selected as the default security module then set::
- CONFIG_DEFAULT_SECURITY="apparmor"
- CONFIG_SECURITY_APPARMOR_BOOTPARAM_VALUE=1
+ CONFIG_DEFAULT_SECURITY_APPARMOR=y
+
+The CONFIG_LSM parameter manages the order and selection of LSMs.
+Specify apparmor as the first "major" module (e.g. AppArmor, SELinux, Smack)
+in the list.
Build the kernel
diff --git a/Documentation/admin-guide/LSM/index.rst b/Documentation/admin-guide/LSM/index.rst
index a6ba95fbaa9f..b44ef68f6e4d 100644
--- a/Documentation/admin-guide/LSM/index.rst
+++ b/Documentation/admin-guide/LSM/index.rst
@@ -47,3 +47,5 @@ subdirectories.
tomoyo
Yama
SafeSetID
+ ipe
+ landlock
diff --git a/Documentation/admin-guide/LSM/ipe.rst b/Documentation/admin-guide/LSM/ipe.rst
new file mode 100644
index 000000000000..a756d8158531
--- /dev/null
+++ b/Documentation/admin-guide/LSM/ipe.rst
@@ -0,0 +1,835 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Integrity Policy Enforcement (IPE)
+==================================
+
+.. NOTE::
+
+ This is the documentation for admins, system builders, or individuals
+ attempting to use IPE. If you're looking for more developer-focused
+ documentation about IPE please see :doc:`the design docs </security/ipe>`.
+
+Overview
+--------
+
+Integrity Policy Enforcement (IPE) is a Linux Security Module that takes a
+complementary approach to access control. Unlike traditional access control
+mechanisms that rely on labels and paths for decision-making, IPE focuses
+on the immutable security properties inherent to system components. These
+properties are fundamental attributes or features of a system component
+that cannot be altered, ensuring a consistent and reliable basis for
+security decisions.
+
+To elaborate, in the context of IPE, system components primarily refer to
+files or the devices these files reside on. However, this is just a
+starting point. The concept of system components is flexible and can be
+extended to include new elements as the system evolves. The immutable
+properties include the origin of a file, which remains constant and
+unchangeable over time. For example, IPE policies can be crafted to trust
+files originating from the initramfs. Since initramfs is typically verified
+by the bootloader, its files are deemed trustworthy; "file is from
+initramfs" becomes an immutable property under IPE's consideration.
+
+The immutable property concept extends to the security features enabled on
+a file's origin, such as dm-verity or fs-verity, which provide a layer of
+integrity and trust. For example, IPE allows the definition of policies
+that trust files from a dm-verity protected device. dm-verity ensures the
+integrity of an entire device by providing a verifiable and immutable state
+of its contents. Similarly, fs-verity offers filesystem-level integrity
+checks, allowing IPE to enforce policies that trust files protected by
+fs-verity. These two features cannot be turned off once established, so
+they are considered immutable properties. These examples demonstrate how
+IPE leverages immutable properties, such as a file's origin and its
+integrity protection mechanisms, to make access control decisions.
+
+For the IPE policy, specifically, it grants the ability to enforce
+stringent access controls by assessing security properties against
+reference values defined within the policy. This assessment can be based on
+the existence of a security property (e.g., verifying if a file originates
+from initramfs) or evaluating the internal state of an immutable security
+property. The latter includes checking the roothash of a dm-verity
+protected device, determining whether dm-verity possesses a valid
+signature, assessing the digest of a fs-verity protected file, or
+determining whether fs-verity possesses a valid built-in signature. This
+nuanced approach to policy enforcement enables a highly secure and
+customizable system defense mechanism, tailored to specific security
+requirements and trust models.
+
+To enable IPE, ensure that ``CONFIG_SECURITY_IPE`` (under
+:menuselection:`Security -> Integrity Policy Enforcement (IPE)`) config
+option is enabled.
+
+Use Cases
+---------
+
+IPE works best in fixed-function devices: devices in which their purpose
+is clearly defined and not supposed to be changed (e.g. network firewall
+device in a data center, an IoT device, etcetera), where all software and
+configuration is built and provisioned by the system owner.
+
+IPE is a long-way off for use in general-purpose computing: the Linux
+community as a whole tends to follow a decentralized trust model (known as
+the web of trust), which IPE has no support for it yet. Instead, IPE
+supports PKI (public key infrastructure), which generally designates a
+set of trusted entities that provide a measure of absolute trust.
+
+Additionally, while most packages are signed today, the files inside
+the packages (for instance, the executables), tend to be unsigned. This
+makes it difficult to utilize IPE in systems where a package manager is
+expected to be functional, without major changes to the package manager
+and ecosystem behind it.
+
+The digest_cache LSM [#digest_cache_lsm]_ is a system that when combined with IPE,
+could be used to enable and support general-purpose computing use cases.
+
+Known Limitations
+-----------------
+
+IPE cannot verify the integrity of anonymous executable memory, such as
+the trampolines created by gcc closures and libffi (<3.4.2), or JIT'd code.
+Unfortunately, as this is dynamically generated code, there is no way
+for IPE to ensure the integrity of this code to form a trust basis.
+
+IPE cannot verify the integrity of programs written in interpreted
+languages when these scripts are invoked by passing these program files
+to the interpreter. This is because the way interpreters execute these
+files; the scripts themselves are not evaluated as executable code
+through one of IPE's hooks, but they are merely text files that are read
+(as opposed to compiled executables). However, with the introduction of the
+``AT_EXECVE_CHECK`` flag (:doc:`AT_EXECVE_CHECK </userspace-api/check_exec>`),
+interpreters can use it to signal the kernel that a script file will be executed,
+and request the kernel to perform LSM security checks on it.
+
+IPE's EXECUTE operation enforcement differs between compiled executables and
+interpreted scripts: For compiled executables, enforcement is triggered
+automatically by the kernel during ``execve()``, ``execveat()``, ``mmap()``
+and ``mprotect()`` syscalls when loading executable content. For interpreted
+scripts, enforcement requires explicit interpreter integration using
+``execveat()`` with ``AT_EXECVE_CHECK`` flag. Unlike exec syscalls that IPE
+intercepts during the execution process, this mechanism needs the interpreter
+to take the initiative, and existing interpreters won't be automatically
+supported unless the signal call is added.
+
+Threat Model
+------------
+
+IPE specifically targets the risk of tampering with user-space executable
+code after the kernel has initially booted, including the kernel modules
+loaded from userspace via ``modprobe`` or ``insmod``.
+
+To illustrate, consider a scenario where an untrusted binary, possibly
+malicious, is downloaded along with all necessary dependencies, including a
+loader and libc. The primary function of IPE in this context is to prevent
+the execution of such binaries and their dependencies.
+
+IPE achieves this by verifying the integrity and authenticity of all
+executable code before allowing them to run. It conducts a thorough
+check to ensure that the code's integrity is intact and that they match an
+authorized reference value (digest, signature, etc) as per the defined
+policy. If a binary does not pass this verification process, either
+because its integrity has been compromised or it does not meet the
+authorization criteria, IPE will deny its execution. Additionally, IPE
+generates audit logs which may be utilized to detect and analyze failures
+resulting from policy violation.
+
+Tampering threat scenarios include modification or replacement of
+executable code by a range of actors including:
+
+- Actors with physical access to the hardware
+- Actors with local network access to the system
+- Actors with access to the deployment system
+- Compromised internal systems under external control
+- Malicious end users of the system
+- Compromised end users of the system
+- Remote (external) compromise of the system
+
+IPE does not mitigate threats arising from malicious but authorized
+developers (with access to a signing certificate), or compromised
+developer tools used by them (i.e. return-oriented programming attacks).
+Additionally, IPE draws hard security boundary between userspace and
+kernelspace. As a result, kernel-level exploits are considered outside
+the scope of IPE and mitigation is left to other mechanisms.
+
+Policy
+------
+
+IPE policy is a plain-text [#devdoc]_ policy composed of multiple statements
+over several lines. There is one required line, at the top of the
+policy, indicating the policy name, and the policy version, for
+instance::
+
+ policy_name=Ex_Policy policy_version=0.0.0
+
+The policy name is a unique key identifying this policy in a human
+readable name. This is used to create nodes under securityfs as well as
+uniquely identify policies to deploy new policies vs update existing
+policies.
+
+The policy version indicates the current version of the policy (NOT the
+policy syntax version). This is used to prevent rollback of policy to
+potentially insecure previous versions of the policy.
+
+The next portion of IPE policy are rules. Rules are formed by key=value
+pairs, known as properties. IPE rules require two properties: ``action``,
+which determines what IPE does when it encounters a match against the
+rule, and ``op``, which determines when the rule should be evaluated.
+The ordering is significant, a rule must start with ``op``, and end with
+``action``. Thus, a minimal rule is::
+
+ op=EXECUTE action=ALLOW
+
+This example will allow any execution. Additional properties are used to
+assess immutable security properties about the files being evaluated.
+These properties are intended to be descriptions of systems within the
+kernel that can provide a measure of integrity verification, such that IPE
+can determine the trust of the resource based on the value of the property.
+
+Rules are evaluated top-to-bottom. As a result, any revocation rules,
+or denies should be placed early in the file to ensure that these rules
+are evaluated before a rule with ``action=ALLOW``.
+
+IPE policy supports comments. The character '#' will function as a
+comment, ignoring all characters to the right of '#' until the newline.
+
+The default behavior of IPE evaluations can also be expressed in policy,
+through the ``DEFAULT`` statement. This can be done at a global level,
+or a per-operation level::
+
+ # Global
+ DEFAULT action=ALLOW
+
+ # Operation Specific
+ DEFAULT op=EXECUTE action=ALLOW
+
+A default must be set for all known operations in IPE. If you want to
+preserve older policies being compatible with newer kernels that can introduce
+new operations, set a global default of ``ALLOW``, then override the
+defaults on a per-operation basis (as above).
+
+With configurable policy-based LSMs, there's several issues with
+enforcing the configurable policies at startup, around reading and
+parsing the policy:
+
+1. The kernel *should* not read files from userspace, so directly reading
+ the policy file is prohibited.
+2. The kernel command line has a character limit, and one kernel module
+ should not reserve the entire character limit for its own
+ configuration.
+3. There are various boot loaders in the kernel ecosystem, so handing
+ off a memory block would be costly to maintain.
+
+As a result, IPE has addressed this problem through a concept of a "boot
+policy". A boot policy is a minimal policy which is compiled into the
+kernel. This policy is intended to get the system to a state where
+userspace is set up and ready to receive commands, at which point a more
+complex policy can be deployed via securityfs. The boot policy can be
+specified via ``SECURITY_IPE_BOOT_POLICY`` config option, which accepts
+a path to a plain-text version of the IPE policy to apply. This policy
+will be compiled into the kernel. If not specified, IPE will be disabled
+until a policy is deployed and activated through securityfs.
+
+Deploying Policies
+~~~~~~~~~~~~~~~~~~
+
+Policies can be deployed from userspace through securityfs. These policies
+are signed through the PKCS#7 message format to enforce some level of
+authorization of the policies (prohibiting an attacker from gaining
+unconstrained root, and deploying an "allow all" policy). These
+policies must be signed by a certificate that chains to the
+``SYSTEM_TRUSTED_KEYRING``, or to the secondary and/or platform keyrings if
+``CONFIG_IPE_POLICY_SIG_SECONDARY_KEYRING`` and/or
+``CONFIG_IPE_POLICY_SIG_PLATFORM_KEYRING`` are enabled, respectively.
+With openssl, the policy can be signed by::
+
+ openssl smime -sign \
+ -in "$MY_POLICY" \
+ -signer "$MY_CERTIFICATE" \
+ -inkey "$MY_PRIVATE_KEY" \
+ -noattr \
+ -nodetach \
+ -nosmimecap \
+ -outform der \
+ -out "$MY_POLICY.p7b"
+
+Deploying the policies is done through securityfs, through the
+``new_policy`` node. To deploy a policy, simply cat the file into the
+securityfs node::
+
+ cat "$MY_POLICY.p7b" > /sys/kernel/security/ipe/new_policy
+
+Upon success, this will create one subdirectory under
+``/sys/kernel/security/ipe/policies/``. The subdirectory will be the
+``policy_name`` field of the policy deployed, so for the example above,
+the directory will be ``/sys/kernel/security/ipe/policies/Ex_Policy``.
+Within this directory, there will be seven files: ``pkcs7``, ``policy``,
+``name``, ``version``, ``active``, ``update``, and ``delete``.
+
+The ``pkcs7`` file is read-only. Reading it returns the raw PKCS#7 data
+that was provided to the kernel, representing the policy. If the policy being
+read is the boot policy, this will return ``ENOENT``, as it is not signed.
+
+The ``policy`` file is read only. Reading it returns the PKCS#7 inner
+content of the policy, which will be the plain text policy.
+
+The ``active`` file is used to set a policy as the currently active policy.
+This file is rw, and accepts a value of ``"1"`` to set the policy as active.
+Since only a single policy can be active at one time, all other policies
+will be marked inactive. The policy being marked active must have a policy
+version greater or equal to the currently-running version.
+
+The ``update`` file is used to update a policy that is already present
+in the kernel. This file is write-only and accepts a PKCS#7 signed
+policy. Two checks will always be performed on this policy: First, the
+``policy_names`` must match with the updated version and the existing
+version. Second the updated policy must have a policy version greater than
+the currently-running version. This is to prevent rollback attacks.
+
+The ``delete`` file is used to remove a policy that is no longer needed.
+This file is write-only and accepts a value of ``1`` to delete the policy.
+On deletion, the securityfs node representing the policy will be removed.
+However, delete the current active policy is not allowed and will return
+an operation not permitted error.
+
+Similarly, writing to both ``update`` and ``new_policy`` could result in
+bad message(policy syntax error) or file exists error. The latter error happens
+when trying to deploy a policy with a ``policy_name`` while the kernel already
+has a deployed policy with the same ``policy_name``.
+
+Deploying a policy will *not* cause IPE to start enforcing the policy. IPE will
+only enforce the policy marked active. Note that only one policy can be active
+at a time.
+
+Once deployment is successful, the policy can be activated, by writing file
+``/sys/kernel/security/ipe/policies/$policy_name/active``.
+For example, the ``Ex_Policy`` can be activated by::
+
+ echo 1 > "/sys/kernel/security/ipe/policies/Ex_Policy/active"
+
+From above point on, ``Ex_Policy`` is now the enforced policy on the
+system.
+
+IPE also provides a way to delete policies. This can be done via the
+``delete`` securityfs node,
+``/sys/kernel/security/ipe/policies/$policy_name/delete``.
+Writing ``1`` to that file deletes the policy::
+
+ echo 1 > "/sys/kernel/security/ipe/policies/$policy_name/delete"
+
+There is only one requirement to delete a policy: the policy being deleted
+must be inactive.
+
+.. NOTE::
+
+ If a traditional MAC system is enabled (SELinux, apparmor, smack), all
+ writes to ipe's securityfs nodes require ``CAP_MAC_ADMIN``.
+
+Modes
+~~~~~
+
+IPE supports two modes of operation: permissive (similar to SELinux's
+permissive mode) and enforced. In permissive mode, all events are
+checked and policy violations are logged, but the policy is not really
+enforced. This allows users to test policies before enforcing them.
+
+The default mode is enforce, and can be changed via the kernel command
+line parameter ``ipe.enforce=(0|1)``, or the securityfs node
+``/sys/kernel/security/ipe/enforce``.
+
+.. NOTE::
+
+ If a traditional MAC system is enabled (SELinux, apparmor, smack, etcetera),
+ all writes to ipe's securityfs nodes require ``CAP_MAC_ADMIN``.
+
+Audit Events
+~~~~~~~~~~~~
+
+1420 AUDIT_IPE_ACCESS
+^^^^^^^^^^^^^^^^^^^^^
+Event Examples::
+
+ type=1420 audit(1653364370.067:61): ipe_op=EXECUTE ipe_hook=MMAP enforcing=1 pid=2241 comm="ld-linux.so" path="/deny/lib/libc.so.6" dev="sda2" ino=14549020 rule="DEFAULT action=DENY"
+ type=1300 audit(1653364370.067:61): SYSCALL arch=c000003e syscall=9 success=no exit=-13 a0=7f1105a28000 a1=195000 a2=5 a3=812 items=0 ppid=2219 pid=2241 auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=pts0 ses=2 comm="ld-linux.so" exe="/tmp/ipe-test/lib/ld-linux.so" subj=unconfined key=(null)
+ type=1327 audit(1653364370.067:61): 707974686F6E3300746573742F6D61696E2E7079002D6E00
+
+ type=1420 audit(1653364735.161:64): ipe_op=EXECUTE ipe_hook=MMAP enforcing=1 pid=2472 comm="mmap_test" path=? dev=? ino=? rule="DEFAULT action=DENY"
+ type=1300 audit(1653364735.161:64): SYSCALL arch=c000003e syscall=9 success=no exit=-13 a0=0 a1=1000 a2=4 a3=21 items=0 ppid=2219 pid=2472 auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=pts0 ses=2 comm="mmap_test" exe="/root/overlake_test/upstream_test/vol_fsverity/bin/mmap_test" subj=unconfined key=(null)
+ type=1327 audit(1653364735.161:64): 707974686F6E3300746573742F6D61696E2E7079002D6E00
+
+This event indicates that IPE made an access control decision; the IPE
+specific record (1420) is always emitted in conjunction with a
+``AUDITSYSCALL`` record.
+
+Determining whether IPE is in permissive or enforced mode can be derived
+from ``success`` property and exit code of the ``AUDITSYSCALL`` record.
+
+
+Field descriptions:
+
++-----------+------------+-----------+---------------------------------------------------------------------------------+
+| Field | Value Type | Optional? | Description of Value |
++===========+============+===========+=================================================================================+
+| ipe_op | string | No | The IPE operation name associated with the log |
++-----------+------------+-----------+---------------------------------------------------------------------------------+
+| ipe_hook | string | No | The name of the LSM hook that triggered the IPE event |
++-----------+------------+-----------+---------------------------------------------------------------------------------+
+| enforcing | integer | No | The current IPE enforcing state 1 is in enforcing mode, 0 is in permissive mode |
++-----------+------------+-----------+---------------------------------------------------------------------------------+
+| pid | integer | No | The pid of the process that triggered the IPE event. |
++-----------+------------+-----------+---------------------------------------------------------------------------------+
+| comm | string | No | The command line program name of the process that triggered the IPE event |
++-----------+------------+-----------+---------------------------------------------------------------------------------+
+| path | string | Yes | The absolute path to the evaluated file |
++-----------+------------+-----------+---------------------------------------------------------------------------------+
+| ino | integer | Yes | The inode number of the evaluated file |
++-----------+------------+-----------+---------------------------------------------------------------------------------+
+| dev | string | Yes | The device name of the evaluated file, e.g. vda |
++-----------+------------+-----------+---------------------------------------------------------------------------------+
+| rule | string | No | The matched policy rule |
++-----------+------------+-----------+---------------------------------------------------------------------------------+
+
+1421 AUDIT_IPE_CONFIG_CHANGE
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+Event Example::
+
+ type=1421 audit(1653425583.136:54): old_active_pol_name="Allow_All" old_active_pol_version=0.0.0 old_policy_digest=sha256:E3B0C44298FC1C149AFBF4C8996FB92427AE41E4649B934CA495991B7852B855 new_active_pol_name="boot_verified" new_active_pol_version=0.0.0 new_policy_digest=sha256:820EEA5B40CA42B51F68962354BA083122A20BB846F26765076DD8EED7B8F4DB auid=4294967295 ses=4294967295 lsm=ipe res=1
+ type=1300 audit(1653425583.136:54): SYSCALL arch=c000003e syscall=1 success=yes exit=2 a0=3 a1=5596fcae1fb0 a2=2 a3=2 items=0 ppid=184 pid=229 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=pts0 ses=4294967295 comm="python3" exe="/usr/bin/python3.10" key=(null)
+ type=1327 audit(1653425583.136:54): PROCTITLE proctitle=707974686F6E3300746573742F6D61696E2E7079002D66002E2
+
+This event indicates that IPE switched the active poliy from one to another
+along with the version and the hash digest of the two policies.
+Note IPE can only have one policy active at a time, all access decision
+evaluation is based on the current active policy.
+The normal procedure to deploy a new policy is loading the policy to deploy
+into the kernel first, then switch the active policy to it.
+
+This record will always be emitted in conjunction with a ``AUDITSYSCALL`` record for the ``write`` syscall.
+
+Field descriptions:
+
++------------------------+------------+-----------+---------------------------------------------------+
+| Field | Value Type | Optional? | Description of Value |
++========================+============+===========+===================================================+
+| old_active_pol_name | string | Yes | The name of previous active policy |
++------------------------+------------+-----------+---------------------------------------------------+
+| old_active_pol_version | string | Yes | The version of previous active policy |
++------------------------+------------+-----------+---------------------------------------------------+
+| old_policy_digest | string | Yes | The hash of previous active policy |
++------------------------+------------+-----------+---------------------------------------------------+
+| new_active_pol_name | string | No | The name of current active policy |
++------------------------+------------+-----------+---------------------------------------------------+
+| new_active_pol_version | string | No | The version of current active policy |
++------------------------+------------+-----------+---------------------------------------------------+
+| new_policy_digest | string | No | The hash of current active policy |
++------------------------+------------+-----------+---------------------------------------------------+
+| auid | integer | No | The login user ID |
++------------------------+------------+-----------+---------------------------------------------------+
+| ses | integer | No | The login session ID |
++------------------------+------------+-----------+---------------------------------------------------+
+| lsm | string | No | The lsm name associated with the event |
++------------------------+------------+-----------+---------------------------------------------------+
+| res | integer | No | The result of the audited operation(success/fail) |
++------------------------+------------+-----------+---------------------------------------------------+
+
+1422 AUDIT_IPE_POLICY_LOAD
+^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+Event Example::
+
+ type=1422 audit(1653425529.927:53): policy_name="boot_verified" policy_version=0.0.0 policy_digest=sha256:820EEA5B40CA42B51F68962354BA083122A20BB846F26765076DD8EED7B8F4DB auid=4294967295 ses=4294967295 lsm=ipe res=1 errno=0
+ type=1300 audit(1653425529.927:53): arch=c000003e syscall=1 success=yes exit=2567 a0=3 a1=5596fcae1fb0 a2=a07 a3=2 items=0 ppid=184 pid=229 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=pts0 ses=4294967295 comm="python3" exe="/usr/bin/python3.10" key=(null)
+ type=1327 audit(1653425529.927:53): PROCTITLE proctitle=707974686F6E3300746573742F6D61696E2E7079002D66002E2E
+
+This record indicates a new policy has been loaded into the kernel with the policy name, policy version and policy hash.
+
+This record will always be emitted in conjunction with a ``AUDITSYSCALL`` record for the ``write`` syscall.
+
+Field descriptions:
+
++----------------+------------+-----------+-------------------------------------------------------------+
+| Field | Value Type | Optional? | Description of Value |
++================+============+===========+=============================================================+
+| policy_name | string | Yes | The policy_name |
++----------------+------------+-----------+-------------------------------------------------------------+
+| policy_version | string | Yes | The policy_version |
++----------------+------------+-----------+-------------------------------------------------------------+
+| policy_digest | string | Yes | The policy hash |
++----------------+------------+-----------+-------------------------------------------------------------+
+| auid | integer | No | The login user ID |
++----------------+------------+-----------+-------------------------------------------------------------+
+| ses | integer | No | The login session ID |
++----------------+------------+-----------+-------------------------------------------------------------+
+| lsm | string | No | The lsm name associated with the event |
++----------------+------------+-----------+-------------------------------------------------------------+
+| res | integer | No | The result of the audited operation(success/fail) |
++----------------+------------+-----------+-------------------------------------------------------------+
+| errno | integer | No | Error code from policy loading operations (see table below) |
++----------------+------------+-----------+-------------------------------------------------------------+
+
+Policy error codes (errno):
+
+The following table lists the error codes that may appear in the errno field while loading or updating the policy:
+
++----------------+--------------------------------------------------------+
+| Error Code | Description |
++================+========================================================+
+| 0 | Success |
++----------------+--------------------------------------------------------+
+| -EPERM | Insufficient permission |
++----------------+--------------------------------------------------------+
+| -EEXIST | Same name policy already deployed |
++----------------+--------------------------------------------------------+
+| -EBADMSG | Policy is invalid |
++----------------+--------------------------------------------------------+
+| -ENOMEM | Out of memory (OOM) |
++----------------+--------------------------------------------------------+
+| -ERANGE | Policy version number overflow |
++----------------+--------------------------------------------------------+
+| -EINVAL | Policy version parsing error |
++----------------+--------------------------------------------------------+
+| -ENOKEY | Key used to sign the IPE policy not found in keyring |
++----------------+--------------------------------------------------------+
+| -EKEYREJECTED | Policy signature verification failed |
++----------------+--------------------------------------------------------+
+| -ESTALE | Attempting to update an IPE policy with older version |
++----------------+--------------------------------------------------------+
+| -ENOENT | Policy was deleted while updating |
++----------------+--------------------------------------------------------+
+
+1404 AUDIT_MAC_STATUS
+^^^^^^^^^^^^^^^^^^^^^
+
+Event Examples::
+
+ type=1404 audit(1653425689.008:55): enforcing=0 old_enforcing=1 auid=4294967295 ses=4294967295 enabled=1 old-enabled=1 lsm=ipe res=1
+ type=1300 audit(1653425689.008:55): arch=c000003e syscall=1 success=yes exit=2 a0=1 a1=55c1065e5c60 a2=2 a3=0 items=0 ppid=405 pid=441 auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=)
+ type=1327 audit(1653425689.008:55): proctitle="-bash"
+
+ type=1404 audit(1653425689.008:55): enforcing=1 old_enforcing=0 auid=4294967295 ses=4294967295 enabled=1 old-enabled=1 lsm=ipe res=1
+ type=1300 audit(1653425689.008:55): arch=c000003e syscall=1 success=yes exit=2 a0=1 a1=55c1065e5c60 a2=2 a3=0 items=0 ppid=405 pid=441 auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=)
+ type=1327 audit(1653425689.008:55): proctitle="-bash"
+
+This record will always be emitted in conjunction with a ``AUDITSYSCALL`` record for the ``write`` syscall.
+
+Field descriptions:
+
++---------------+------------+-----------+-------------------------------------------------------------------------------------------------+
+| Field | Value Type | Optional? | Description of Value |
++===============+============+===========+=================================================================================================+
+| enforcing | integer | No | The enforcing state IPE is being switched to, 1 is in enforcing mode, 0 is in permissive mode |
++---------------+------------+-----------+-------------------------------------------------------------------------------------------------+
+| old_enforcing | integer | No | The enforcing state IPE is being switched from, 1 is in enforcing mode, 0 is in permissive mode |
++---------------+------------+-----------+-------------------------------------------------------------------------------------------------+
+| auid | integer | No | The login user ID |
++---------------+------------+-----------+-------------------------------------------------------------------------------------------------+
+| ses | integer | No | The login session ID |
++---------------+------------+-----------+-------------------------------------------------------------------------------------------------+
+| enabled | integer | No | The new TTY audit enabled setting |
++---------------+------------+-----------+-------------------------------------------------------------------------------------------------+
+| old-enabled | integer | No | The old TTY audit enabled setting |
++---------------+------------+-----------+-------------------------------------------------------------------------------------------------+
+| lsm | string | No | The lsm name associated with the event |
++---------------+------------+-----------+-------------------------------------------------------------------------------------------------+
+| res | integer | No | The result of the audited operation(success/fail) |
++---------------+------------+-----------+-------------------------------------------------------------------------------------------------+
+
+
+Success Auditing
+^^^^^^^^^^^^^^^^
+
+IPE supports success auditing. When enabled, all events that pass IPE
+policy and are not blocked will emit an audit event. This is disabled by
+default, and can be enabled via the kernel command line
+``ipe.success_audit=(0|1)`` or
+``/sys/kernel/security/ipe/success_audit`` securityfs file.
+
+This is *very* noisy, as IPE will check every userspace binary on the
+system, but is useful for debugging policies.
+
+.. NOTE::
+
+ If a traditional MAC system is enabled (SELinux, apparmor, smack, etcetera),
+ all writes to ipe's securityfs nodes require ``CAP_MAC_ADMIN``.
+
+Properties
+----------
+
+As explained above, IPE properties are ``key=value`` pairs expressed in IPE
+policy. Two properties are built-into the policy parser: 'op' and 'action'.
+The other properties are used to restrict immutable security properties
+about the files being evaluated. Currently those properties are:
+'``boot_verified``', '``dmverity_signature``', '``dmverity_roothash``',
+'``fsverity_signature``', '``fsverity_digest``'. A description of all
+properties supported by IPE are listed below:
+
+op
+~~
+
+Indicates the operation for a rule to apply to. Must be in every rule,
+as the first token. IPE supports the following operations:
+
+ ``EXECUTE``
+
+ Pertains to any file attempting to be executed, or loaded as an
+ executable.
+
+ ``FIRMWARE``:
+
+ Pertains to firmware being loaded via the firmware_class interface.
+ This covers both the preallocated buffer and the firmware file
+ itself.
+
+ ``KMODULE``:
+
+ Pertains to loading kernel modules via ``modprobe`` or ``insmod``.
+
+ ``KEXEC_IMAGE``:
+
+ Pertains to kernel images loading via ``kexec``.
+
+ ``KEXEC_INITRAMFS``
+
+ Pertains to initrd images loading via ``kexec --initrd``.
+
+ ``POLICY``:
+
+ Controls loading policies via reading a kernel-space initiated read.
+
+ An example of such is loading IMA policies by writing the path
+ to the policy file to ``$securityfs/ima/policy``
+
+ ``X509_CERT``:
+
+ Controls loading IMA certificates through the Kconfigs,
+ ``CONFIG_IMA_X509_PATH`` and ``CONFIG_EVM_X509_PATH``.
+
+action
+~~~~~~
+
+ Determines what IPE should do when a rule matches. Must be in every
+ rule, as the final clause. Can be one of:
+
+ ``ALLOW``:
+
+ If the rule matches, explicitly allow access to the resource to proceed
+ without executing any more rules.
+
+ ``DENY``:
+
+ If the rule matches, explicitly prohibit access to the resource to
+ proceed without executing any more rules.
+
+boot_verified
+~~~~~~~~~~~~~
+
+ This property can be utilized for authorization of files from initramfs.
+ The format of this property is::
+
+ boot_verified=(TRUE|FALSE)
+
+
+ .. WARNING::
+
+ This property will trust files from initramfs(rootfs). It should
+ only be used during early booting stage. Before mounting the real
+ rootfs on top of the initramfs, initramfs script will recursively
+ remove all files and directories on the initramfs. This is typically
+ implemented by using switch_root(8) [#switch_root]_. Therefore the
+ initramfs will be empty and not accessible after the real
+ rootfs takes over. It is advised to switch to a different policy
+ that doesn't rely on the property after this point.
+ This ensures that the trust policies remain relevant and effective
+ throughout the system's operation.
+
+dmverity_roothash
+~~~~~~~~~~~~~~~~~
+
+ This property can be utilized for authorization or revocation of
+ specific dm-verity volumes, identified via their root hashes. It has a
+ dependency on the DM_VERITY module. This property is controlled by
+ the ``IPE_PROP_DM_VERITY`` config option, it will be automatically
+ selected when ``SECURITY_IPE`` and ``DM_VERITY`` are all enabled.
+ The format of this property is::
+
+ dmverity_roothash=DigestName:HexadecimalString
+
+ The supported DigestNames for dmverity_roothash are [#dmveritydigests]_
+
+ + blake2b-512
+ + blake2s-256
+ + sha256
+ + sha384
+ + sha512
+ + sha3-224
+ + sha3-256
+ + sha3-384
+ + sha3-512
+ + sm3
+ + rmd160
+
+dmverity_signature
+~~~~~~~~~~~~~~~~~~
+
+ This property can be utilized for authorization of all dm-verity
+ volumes that have a signed roothash that validated by a keyring
+ specified by dm-verity's configuration, either the system trusted
+ keyring, or the secondary keyring. It depends on
+ ``DM_VERITY_VERIFY_ROOTHASH_SIG`` config option and is controlled by
+ the ``IPE_PROP_DM_VERITY_SIGNATURE`` config option, it will be automatically
+ selected when ``SECURITY_IPE``, ``DM_VERITY`` and
+ ``DM_VERITY_VERIFY_ROOTHASH_SIG`` are all enabled.
+ The format of this property is::
+
+ dmverity_signature=(TRUE|FALSE)
+
+fsverity_digest
+~~~~~~~~~~~~~~~
+
+ This property can be utilized for authorization of specific fsverity
+ enabled files, identified via their fsverity digests.
+ It depends on ``FS_VERITY`` config option and is controlled by
+ the ``IPE_PROP_FS_VERITY`` config option, it will be automatically
+ selected when ``SECURITY_IPE`` and ``FS_VERITY`` are all enabled.
+ The format of this property is::
+
+ fsverity_digest=DigestName:HexadecimalString
+
+ The supported DigestNames for fsverity_digest are [#fsveritydigest]_
+
+ + sha256
+ + sha512
+
+fsverity_signature
+~~~~~~~~~~~~~~~~~~
+
+ This property is used to authorize all fs-verity enabled files that have
+ been verified by fs-verity's built-in signature mechanism. The signature
+ verification relies on a key stored within the ".fs-verity" keyring. It
+ depends on ``FS_VERITY_BUILTIN_SIGNATURES`` config option and
+ it is controlled by the ``IPE_PROP_FS_VERITY`` config option,
+ it will be automatically selected when ``SECURITY_IPE``, ``FS_VERITY``
+ and ``FS_VERITY_BUILTIN_SIGNATURES`` are all enabled.
+ The format of this property is::
+
+ fsverity_signature=(TRUE|FALSE)
+
+Policy Examples
+---------------
+
+Allow all
+~~~~~~~~~
+
+::
+
+ policy_name=Allow_All policy_version=0.0.0
+ DEFAULT action=ALLOW
+
+Allow only initramfs
+~~~~~~~~~~~~~~~~~~~~
+
+::
+
+ policy_name=Allow_Initramfs policy_version=0.0.0
+ DEFAULT action=DENY
+
+ op=EXECUTE boot_verified=TRUE action=ALLOW
+
+Allow any signed and validated dm-verity volume and the initramfs
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+::
+
+ policy_name=Allow_Signed_DMV_And_Initramfs policy_version=0.0.0
+ DEFAULT action=DENY
+
+ op=EXECUTE boot_verified=TRUE action=ALLOW
+ op=EXECUTE dmverity_signature=TRUE action=ALLOW
+
+Prohibit execution from a specific dm-verity volume
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+::
+
+ policy_name=Deny_DMV_By_Roothash policy_version=0.0.0
+ DEFAULT action=DENY
+
+ op=EXECUTE dmverity_roothash=sha256:cd2c5bae7c6c579edaae4353049d58eb5f2e8be0244bf05345bc8e5ed257baff action=DENY
+
+ op=EXECUTE boot_verified=TRUE action=ALLOW
+ op=EXECUTE dmverity_signature=TRUE action=ALLOW
+
+Allow only a specific dm-verity volume
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+::
+
+ policy_name=Allow_DMV_By_Roothash policy_version=0.0.0
+ DEFAULT action=DENY
+
+ op=EXECUTE dmverity_roothash=sha256:401fcec5944823ae12f62726e8184407a5fa9599783f030dec146938 action=ALLOW
+
+Allow any fs-verity file with a valid built-in signature
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+::
+
+ policy_name=Allow_Signed_And_Validated_FSVerity policy_version=0.0.0
+ DEFAULT action=DENY
+
+ op=EXECUTE fsverity_signature=TRUE action=ALLOW
+
+Allow execution of a specific fs-verity file
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+::
+
+ policy_name=ALLOW_FSV_By_Digest policy_version=0.0.0
+ DEFAULT action=DENY
+
+ op=EXECUTE fsverity_digest=sha256:fd88f2b8824e197f850bf4c5109bea5cf0ee38104f710843bb72da796ba5af9e action=ALLOW
+
+Additional Information
+----------------------
+
+- `Github Repository <https://github.com/microsoft/ipe>`_
+- :doc:`Developer and design docs for IPE </security/ipe>`
+
+FAQ
+---
+
+Q:
+ What's the difference between other LSMs which provide a measure of
+ trust-based access control?
+
+A:
+
+ In general, there's two other LSMs that can provide similar functionality:
+ IMA, and Loadpin.
+
+ IMA and IPE are functionally very similar. The significant difference between
+ the two is the policy. [#devdoc]_
+
+ Loadpin and IPE differ fairly dramatically, as Loadpin only covers the IPE's
+ kernel read operations, whereas IPE is capable of controlling execution
+ on top of kernel read. The trust model is also different; Loadpin roots its
+ trust in the initial super-block, whereas trust in IPE is stemmed from kernel
+ itself (via ``SYSTEM_TRUSTED_KEYS``).
+
+-----------
+
+.. [#digest_cache_lsm] https://lore.kernel.org/lkml/20240415142436.2545003-1-roberto.sassu@huaweicloud.com/
+
+.. [#devdoc] Please see :doc:`the design docs </security/ipe>` for more on
+ this topic.
+
+.. [#switch_root] https://man7.org/linux/man-pages/man8/switch_root.8.html
+
+.. [#dmveritydigests] These hash algorithms are based on values accepted by
+ the Linux crypto API; IPE does not impose any
+ restrictions on the digest algorithm itself;
+ thus, this list may be out of date.
+
+.. [#fsveritydigest] These hash algorithms are based on values accepted by the
+ kernel's fsverity support; IPE does not impose any
+ restrictions on the digest algorithm itself;
+ thus, this list may be out of date.
diff --git a/Documentation/admin-guide/LSM/landlock.rst b/Documentation/admin-guide/LSM/landlock.rst
new file mode 100644
index 000000000000..9e61607def08
--- /dev/null
+++ b/Documentation/admin-guide/LSM/landlock.rst
@@ -0,0 +1,158 @@
+.. SPDX-License-Identifier: GPL-2.0
+.. Copyright © 2025 Microsoft Corporation
+
+================================
+Landlock: system-wide management
+================================
+
+:Author: Mickaël Salaün
+:Date: March 2025
+
+Landlock can leverage the audit framework to log events.
+
+User space documentation can be found here:
+Documentation/userspace-api/landlock.rst.
+
+Audit
+=====
+
+Denied access requests are logged by default for a sandboxed program if `audit`
+is enabled. This default behavior can be changed with the
+sys_landlock_restrict_self() flags (cf.
+Documentation/userspace-api/landlock.rst). Landlock logs can also be masked
+thanks to audit rules. Landlock can generate 2 audit record types.
+
+Record types
+------------
+
+AUDIT_LANDLOCK_ACCESS
+ This record type identifies a denied access request to a kernel resource.
+ The ``domain`` field indicates the ID of the domain that blocked the
+ request. The ``blockers`` field indicates the cause(s) of this denial
+ (separated by a comma), and the following fields identify the kernel object
+ (similar to SELinux). There may be more than one of this record type per
+ audit event.
+
+ Example with a file link request generating two records in the same event::
+
+ domain=195ba459b blockers=fs.refer path="/usr/bin" dev="vda2" ino=351
+ domain=195ba459b blockers=fs.make_reg,fs.refer path="/usr/local" dev="vda2" ino=365
+
+AUDIT_LANDLOCK_DOMAIN
+ This record type describes the status of a Landlock domain. The ``status``
+ field can be either ``allocated`` or ``deallocated``.
+
+ The ``allocated`` status is part of the same audit event and follows
+ the first logged ``AUDIT_LANDLOCK_ACCESS`` record of a domain. It identifies
+ Landlock domain information at the time of the sys_landlock_restrict_self()
+ call with the following fields:
+
+ - the ``domain`` ID
+ - the enforcement ``mode``
+ - the domain creator's ``pid``
+ - the domain creator's ``uid``
+ - the domain creator's executable path (``exe``)
+ - the domain creator's command line (``comm``)
+
+ Example::
+
+ domain=195ba459b status=allocated mode=enforcing pid=300 uid=0 exe="/root/sandboxer" comm="sandboxer"
+
+ The ``deallocated`` status is an event on its own and it identifies a
+ Landlock domain release. After such event, it is guarantee that the
+ related domain ID will never be reused during the lifetime of the system.
+ The ``domain`` field indicates the ID of the domain which is released, and
+ the ``denials`` field indicates the total number of denied access request,
+ which might not have been logged according to the audit rules and
+ sys_landlock_restrict_self()'s flags.
+
+ Example::
+
+ domain=195ba459b status=deallocated denials=3
+
+
+Event samples
+--------------
+
+Here are two examples of log events (see serial numbers).
+
+In this example a sandboxed program (``kill``) tries to send a signal to the
+init process, which is denied because of the signal scoping restriction
+(``LL_SCOPED=s``)::
+
+ $ LL_FS_RO=/ LL_FS_RW=/ LL_SCOPED=s LL_FORCE_LOG=1 ./sandboxer kill 1
+
+This command generates two events, each identified with a unique serial
+number following a timestamp (``msg=audit(1729738800.268:30)``). The first
+event (serial ``30``) contains 4 records. The first record
+(``type=LANDLOCK_ACCESS``) shows an access denied by the domain `1a6fdc66f`.
+The cause of this denial is signal scopping restriction
+(``blockers=scope.signal``). The process that would have receive this signal
+is the init process (``opid=1 ocomm="systemd"``).
+
+The second record (``type=LANDLOCK_DOMAIN``) describes (``status=allocated``)
+domain `1a6fdc66f`. This domain was created by process ``286`` executing the
+``/root/sandboxer`` program launched by the root user.
+
+The third record (``type=SYSCALL``) describes the syscall, its provided
+arguments, its result (``success=no exit=-1``), and the process that called it.
+
+The fourth record (``type=PROCTITLE``) shows the command's name as an
+hexadecimal value. This can be translated with ``python -c
+'print(bytes.fromhex("6B696C6C0031"))'``.
+
+Finally, the last record (``type=LANDLOCK_DOMAIN``) is also the only one from
+the second event (serial ``31``). It is not tied to a direct user space action
+but an asynchronous one to free resources tied to a Landlock domain
+(``status=deallocated``). This can be useful to know that the following logs
+will not concern the domain ``1a6fdc66f`` anymore. This record also summarize
+the number of requests this domain denied (``denials=1``), whether they were
+logged or not.
+
+.. code-block::
+
+ type=LANDLOCK_ACCESS msg=audit(1729738800.268:30): domain=1a6fdc66f blockers=scope.signal opid=1 ocomm="systemd"
+ type=LANDLOCK_DOMAIN msg=audit(1729738800.268:30): domain=1a6fdc66f status=allocated mode=enforcing pid=286 uid=0 exe="/root/sandboxer" comm="sandboxer"
+ type=SYSCALL msg=audit(1729738800.268:30): arch=c000003e syscall=62 success=no exit=-1 [..] ppid=272 pid=286 auid=0 uid=0 gid=0 [...] comm="kill" [...]
+ type=PROCTITLE msg=audit(1729738800.268:30): proctitle=6B696C6C0031
+ type=LANDLOCK_DOMAIN msg=audit(1729738800.324:31): domain=1a6fdc66f status=deallocated denials=1
+
+Here is another example showcasing filesystem access control::
+
+ $ LL_FS_RO=/ LL_FS_RW=/tmp LL_FORCE_LOG=1 ./sandboxer sh -c "echo > /etc/passwd"
+
+The related audit logs contains 8 records from 3 different events (serials 33,
+34 and 35) created by the same domain `1a6fdc679`::
+
+ type=LANDLOCK_ACCESS msg=audit(1729738800.221:33): domain=1a6fdc679 blockers=fs.write_file path="/dev/tty" dev="devtmpfs" ino=9
+ type=LANDLOCK_DOMAIN msg=audit(1729738800.221:33): domain=1a6fdc679 status=allocated mode=enforcing pid=289 uid=0 exe="/root/sandboxer" comm="sandboxer"
+ type=SYSCALL msg=audit(1729738800.221:33): arch=c000003e syscall=257 success=no exit=-13 [...] ppid=272 pid=289 auid=0 uid=0 gid=0 [...] comm="sh" [...]
+ type=PROCTITLE msg=audit(1729738800.221:33): proctitle=7368002D63006563686F203E202F6574632F706173737764
+ type=LANDLOCK_ACCESS msg=audit(1729738800.221:34): domain=1a6fdc679 blockers=fs.write_file path="/etc/passwd" dev="vda2" ino=143821
+ type=SYSCALL msg=audit(1729738800.221:34): arch=c000003e syscall=257 success=no exit=-13 [...] ppid=272 pid=289 auid=0 uid=0 gid=0 [...] comm="sh" [...]
+ type=PROCTITLE msg=audit(1729738800.221:34): proctitle=7368002D63006563686F203E202F6574632F706173737764
+ type=LANDLOCK_DOMAIN msg=audit(1729738800.261:35): domain=1a6fdc679 status=deallocated denials=2
+
+
+Event filtering
+---------------
+
+If you get spammed with audit logs related to Landlock, this is either an
+attack attempt or a bug in the security policy. We can put in place some
+filters to limit noise with two complementary ways:
+
+- with sys_landlock_restrict_self()'s flags if we can fix the sandboxed
+ programs,
+- or with audit rules (see :manpage:`auditctl(8)`).
+
+Additional documentation
+========================
+
+* `Linux Audit Documentation`_
+* Documentation/userspace-api/landlock.rst
+* Documentation/security/landlock.rst
+* https://landlock.io
+
+.. Links
+.. _Linux Audit Documentation:
+ https://github.com/linux-audit/audit-documentation/wiki
diff --git a/Documentation/admin-guide/LSM/tomoyo.rst b/Documentation/admin-guide/LSM/tomoyo.rst
index 4bc9c2b4da6f..bdb2c2e2a1b2 100644
--- a/Documentation/admin-guide/LSM/tomoyo.rst
+++ b/Documentation/admin-guide/LSM/tomoyo.rst
@@ -9,8 +9,8 @@ TOMOYO is a name-based MAC extension (LSM module) for the Linux kernel.
LiveCD-based tutorials are available at
-http://tomoyo.sourceforge.jp/1.8/ubuntu12.04-live.html
-http://tomoyo.sourceforge.jp/1.8/centos6-live.html
+https://tomoyo.sourceforge.net/1.8/ubuntu12.04-live.html
+https://tomoyo.sourceforge.net/1.8/centos6-live.html
Though these tutorials use non-LSM version of TOMOYO, they are useful for you
to know what TOMOYO is.
@@ -21,45 +21,32 @@ How to enable TOMOYO?
Build the kernel with ``CONFIG_SECURITY_TOMOYO=y`` and pass ``security=tomoyo`` on
kernel's command line.
-Please see http://tomoyo.osdn.jp/2.5/ for details.
+Please see https://tomoyo.sourceforge.net/2.6/ for details.
Where is documentation?
=======================
User <-> Kernel interface documentation is available at
-https://tomoyo.osdn.jp/2.5/policy-specification/index.html .
+https://tomoyo.sourceforge.net/2.6/policy-specification/index.html .
Materials we prepared for seminars and symposiums are available at
-https://osdn.jp/projects/tomoyo/docs/?category_id=532&language_id=1 .
+https://sourceforge.net/projects/tomoyo/files/docs/ .
Below lists are chosen from three aspects.
What is TOMOYO?
TOMOYO Linux Overview
- https://osdn.jp/projects/tomoyo/docs/lca2009-takeda.pdf
+ https://sourceforge.net/projects/tomoyo/files/docs/lca2009-takeda.pdf
TOMOYO Linux: pragmatic and manageable security for Linux
- https://osdn.jp/projects/tomoyo/docs/freedomhectaipei-tomoyo.pdf
+ https://sourceforge.net/projects/tomoyo/files/docs/freedomhectaipei-tomoyo.pdf
TOMOYO Linux: A Practical Method to Understand and Protect Your Own Linux Box
- https://osdn.jp/projects/tomoyo/docs/PacSec2007-en-no-demo.pdf
+ https://sourceforge.net/projects/tomoyo/files/docs/PacSec2007-en-no-demo.pdf
What can TOMOYO do?
Deep inside TOMOYO Linux
- https://osdn.jp/projects/tomoyo/docs/lca2009-kumaneko.pdf
+ https://sourceforge.net/projects/tomoyo/files/docs/lca2009-kumaneko.pdf
The role of "pathname based access control" in security.
- https://osdn.jp/projects/tomoyo/docs/lfj2008-bof.pdf
+ https://sourceforge.net/projects/tomoyo/files/docs/lfj2008-bof.pdf
History of TOMOYO?
Realities of Mainlining
- https://osdn.jp/projects/tomoyo/docs/lfj2008.pdf
-
-What is future plan?
-====================
-
-We believe that inode based security and name based security are complementary
-and both should be used together. But unfortunately, so far, we cannot enable
-multiple LSM modules at the same time. We feel sorry that you have to give up
-SELinux/SMACK/AppArmor etc. when you want to use TOMOYO.
-
-We hope that LSM becomes stackable in future. Meanwhile, you can use non-LSM
-version of TOMOYO, available at http://tomoyo.osdn.jp/1.8/ .
-LSM version of TOMOYO is a subset of non-LSM version of TOMOYO. We are planning
-to port non-LSM version's functionalities to LSM versions.
+ https://sourceforge.net/projects/tomoyo/files/docs/lfj2008.pdf
diff --git a/Documentation/admin-guide/RAS/address-translation.rst b/Documentation/admin-guide/RAS/address-translation.rst
new file mode 100644
index 000000000000..f0ca17b43cd3
--- /dev/null
+++ b/Documentation/admin-guide/RAS/address-translation.rst
@@ -0,0 +1,24 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Address translation
+===================
+
+x86 AMD
+-------
+
+Zen-based AMD systems include a Data Fabric that manages the layout of
+physical memory. Devices attached to the Fabric, like memory controllers,
+I/O, etc., may not have a complete view of the system physical memory map.
+These devices may provide a "normalized", i.e. device physical, address
+when reporting memory errors. Normalized addresses must be translated to
+a system physical address for the kernel to action on the memory.
+
+AMD Address Translation Library (CONFIG_AMD_ATL) provides translation for
+this case.
+
+Glossary of acronyms used in address translation for Zen-based systems
+
+* CCM = Cache Coherent Moderator
+* COD = Cluster-on-Die
+* COH_ST = Coherent Station
+* DF = Data Fabric
diff --git a/Documentation/admin-guide/RAS/error-decoding.rst b/Documentation/admin-guide/RAS/error-decoding.rst
new file mode 100644
index 000000000000..26a72f3fe5de
--- /dev/null
+++ b/Documentation/admin-guide/RAS/error-decoding.rst
@@ -0,0 +1,21 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Error decoding
+==============
+
+x86
+---
+
+Error decoding on AMD systems should be done using the rasdaemon tool:
+https://github.com/mchehab/rasdaemon/
+
+While the daemon is running, it would automatically log and decode
+errors. If not, one can still decode such errors by supplying the
+hardware information from the error::
+
+ $ rasdaemon -p --status <STATUS> --ipid <IPID> --smca
+
+Also, the user can pass particular family and model to decode the error
+string::
+
+ $ rasdaemon -p --status <STATUS> --ipid <IPID> --smca --family <CPU Family> --model <CPU Model> --bank <BANK_NUM>
diff --git a/Documentation/admin-guide/RAS/index.rst b/Documentation/admin-guide/RAS/index.rst
new file mode 100644
index 000000000000..f4087040a7c0
--- /dev/null
+++ b/Documentation/admin-guide/RAS/index.rst
@@ -0,0 +1,7 @@
+.. SPDX-License-Identifier: GPL-2.0
+.. toctree::
+ :maxdepth: 2
+
+ main
+ error-decoding
+ address-translation
diff --git a/Documentation/admin-guide/RAS/main.rst b/Documentation/admin-guide/RAS/main.rst
new file mode 100644
index 000000000000..5a45db32c49b
--- /dev/null
+++ b/Documentation/admin-guide/RAS/main.rst
@@ -0,0 +1,1087 @@
+.. SPDX-License-Identifier: GPL-2.0
+.. include:: <isonum.txt>
+
+==================================================
+Reliability, Availability and Serviceability (RAS)
+==================================================
+
+This documents different aspects of the RAS functionality present in the
+kernel.
+
+RAS concepts
+************
+
+Reliability, Availability and Serviceability (RAS) is a concept used on
+servers meant to measure their robustness.
+
+Reliability
+ is the probability that a system will produce correct outputs.
+
+ * Generally measured as Mean Time Between Failures (MTBF)
+ * Enhanced by features that help to avoid, detect and repair hardware faults
+
+Availability
+ is the probability that a system is operational at a given time
+
+ * Generally measured as a percentage of downtime per a period of time
+ * Often uses mechanisms to detect and correct hardware faults in
+ runtime;
+
+Serviceability (or maintainability)
+ is the simplicity and speed with which a system can be repaired or
+ maintained
+
+ * Generally measured on Mean Time Between Repair (MTBR)
+
+Improving RAS
+-------------
+
+In order to reduce systems downtime, a system should be capable of detecting
+hardware errors, and, when possible correcting them in runtime. It should
+also provide mechanisms to detect hardware degradation, in order to warn
+the system administrator to take the action of replacing a component before
+it causes data loss or system downtime.
+
+Among the monitoring measures, the most usual ones include:
+
+* CPU – detect errors at instruction execution and at L1/L2/L3 caches;
+* Memory – add error correction logic (ECC) to detect and correct errors;
+* I/O – add CRC checksums for transferred data;
+* Storage – RAID, journal file systems, checksums,
+ Self-Monitoring, Analysis and Reporting Technology (SMART).
+
+By monitoring the number of occurrences of error detections, it is possible
+to identify if the probability of hardware errors is increasing, and, on such
+case, do a preventive maintenance to replace a degraded component while
+those errors are correctable.
+
+Types of errors
+---------------
+
+Most mechanisms used on modern systems use technologies like Hamming
+Codes that allow error correction when the number of errors on a bit packet
+is below a threshold. If the number of errors is above, those mechanisms
+can indicate with a high degree of confidence that an error happened, but
+they can't correct.
+
+Also, sometimes an error occur on a component that it is not used. For
+example, a part of the memory that it is not currently allocated.
+
+That defines some categories of errors:
+
+* **Correctable Error (CE)** - the error detection mechanism detected and
+ corrected the error. Such errors are usually not fatal, although some
+ Kernel mechanisms allow the system administrator to consider them as fatal.
+
+* **Uncorrected Error (UE)** - the amount of errors happened above the error
+ correction threshold, and the system was unable to auto-correct.
+
+* **Fatal Error** - when an UE error happens on a critical component of the
+ system (for example, a piece of the Kernel got corrupted by an UE), the
+ only reliable way to avoid data corruption is to hang or reboot the machine.
+
+* **Non-fatal Error** - when an UE error happens on an unused component,
+ like a CPU in power down state or an unused memory bank, the system may
+ still run, eventually replacing the affected hardware by a hot spare,
+ if available.
+
+ Also, when an error happens on a userspace process, it is also possible to
+ kill such process and let userspace restart it.
+
+The mechanism for handling non-fatal errors is usually complex and may
+require the help of some userspace application, in order to apply the
+policy desired by the system administrator.
+
+Identifying a bad hardware component
+------------------------------------
+
+Just detecting a hardware flaw is usually not enough, as the system needs
+to pinpoint to the minimal replaceable unit (MRU) that should be exchanged
+to make the hardware reliable again.
+
+So, it requires not only error logging facilities, but also mechanisms that
+will translate the error message to the silkscreen or component label for
+the MRU.
+
+Typically, it is very complex for memory, as modern CPUs interlace memory
+from different memory modules, in order to provide a better performance. The
+DMI BIOS usually have a list of memory module labels, with can be obtained
+using the ``dmidecode`` tool. For example, on a desktop machine, it shows::
+
+ Memory Device
+ Total Width: 64 bits
+ Data Width: 64 bits
+ Size: 16384 MB
+ Form Factor: SODIMM
+ Set: None
+ Locator: ChannelA-DIMM0
+ Bank Locator: BANK 0
+ Type: DDR4
+ Type Detail: Synchronous
+ Speed: 2133 MHz
+ Rank: 2
+ Configured Clock Speed: 2133 MHz
+
+On the above example, a DDR4 SO-DIMM memory module is located at the
+system's memory labeled as "BANK 0", as given by the *bank locator* field.
+Please notice that, on such system, the *total width* is equal to the
+*data width*. It means that such memory module doesn't have error
+detection/correction mechanisms.
+
+Unfortunately, not all systems use the same field to specify the memory
+bank. On this example, from an older server, ``dmidecode`` shows::
+
+ Memory Device
+ Array Handle: 0x1000
+ Error Information Handle: Not Provided
+ Total Width: 72 bits
+ Data Width: 64 bits
+ Size: 8192 MB
+ Form Factor: DIMM
+ Set: 1
+ Locator: DIMM_A1
+ Bank Locator: Not Specified
+ Type: DDR3
+ Type Detail: Synchronous Registered (Buffered)
+ Speed: 1600 MHz
+ Rank: 2
+ Configured Clock Speed: 1600 MHz
+
+There, the DDR3 RDIMM memory module is located at the system's memory labeled
+as "DIMM_A1", as given by the *locator* field. Please notice that this
+memory module has 64 bits of *data width* and 72 bits of *total width*. So,
+it has 8 extra bits to be used by error detection and correction mechanisms.
+Such kind of memory is called Error-correcting code memory (ECC memory).
+
+To make things even worse, it is not uncommon that systems with different
+labels on their system's board to use exactly the same BIOS, meaning that
+the labels provided by the BIOS won't match the real ones.
+
+ECC memory
+----------
+
+As mentioned in the previous section, ECC memory has extra bits to be
+used for error correction. In the above example, a memory module has
+64 bits of *data width*, and 72 bits of *total width*. The extra 8
+bits which are used for the error detection and correction mechanisms
+are referred to as the *syndrome*\ [#f1]_\ [#f2]_.
+
+So, when the cpu requests the memory controller to write a word with
+*data width*, the memory controller calculates the *syndrome* in real time,
+using Hamming code, or some other error correction code, like SECDED+,
+producing a code with *total width* size. Such code is then written
+on the memory modules.
+
+At read, the *total width* bits code is converted back, using the same
+ECC code used on write, producing a word with *data width* and a *syndrome*.
+The word with *data width* is sent to the CPU, even when errors happen.
+
+The memory controller also looks at the *syndrome* in order to check if
+there was an error, and if the ECC code was able to fix such error.
+If the error was corrected, a Corrected Error (CE) happened. If not, an
+Uncorrected Error (UE) happened.
+
+The information about the CE/UE errors is stored on some special registers
+at the memory controller and can be accessed by reading such registers,
+either by BIOS, by some special CPUs or by Linux EDAC driver. On x86 64
+bit CPUs, such errors can also be retrieved via the Machine Check
+Architecture (MCA)\ [#f3]_.
+
+.. [#f1] Please notice that several memory controllers allow operation on a
+ mode called "Lock-Step", where it groups two memory modules together,
+ doing 128-bit reads/writes. That gives 16 bits for error correction, with
+ significantly improves the error correction mechanism, at the expense
+ that, when an error happens, there's no way to know what memory module is
+ to blame. So, it has to blame both memory modules.
+
+.. [#f2] Some memory controllers also allow using memory in mirror mode.
+ On such mode, the same data is written to two memory modules. At read,
+ the system checks both memory modules, in order to check if both provide
+ identical data. On such configuration, when an error happens, there's no
+ way to know what memory module is to blame. So, it has to blame both
+ memory modules (or 4 memory modules, if the system is also on Lock-step
+ mode).
+
+.. [#f3] For more details about the Machine Check Architecture (MCA),
+ please read Documentation/arch/x86/x86_64/machinecheck.rst at the Kernel tree.
+
+EDAC - Error Detection And Correction
+*************************************
+
+.. note::
+
+ "bluesmoke" was the name for this device driver subsystem when it
+ was "out-of-tree" and maintained at http://bluesmoke.sourceforge.net.
+ That site is mostly archaic now and can be used only for historical
+ purposes.
+
+ When the subsystem was pushed upstream for the first time, on
+ Kernel 2.6.16, it was renamed to ``EDAC``.
+
+Purpose
+-------
+
+The ``edac`` kernel module's goal is to detect and report hardware errors
+that occur within the computer system running under linux.
+
+Memory
+------
+
+Memory Correctable Errors (CE) and Uncorrectable Errors (UE) are the
+primary errors being harvested. These types of errors are harvested by
+the ``edac_mc`` device.
+
+Detecting CE events, then harvesting those events and reporting them,
+**can** but must not necessarily be a predictor of future UE events. With
+CE events only, the system can and will continue to operate as no data
+has been damaged yet.
+
+However, preventive maintenance and proactive part replacement of memory
+modules exhibiting CEs can reduce the likelihood of the dreaded UE events
+and system panics.
+
+Other hardware elements
+-----------------------
+
+A new feature for EDAC, the ``edac_device`` class of device, was added in
+the 2.6.23 version of the kernel.
+
+This new device type allows for non-memory type of ECC hardware detectors
+to have their states harvested and presented to userspace via the sysfs
+interface.
+
+Some architectures have ECC detectors for L1, L2 and L3 caches,
+along with DMA engines, fabric switches, main data path switches,
+interconnections, and various other hardware data paths. If the hardware
+reports it, then an edac_device device probably can be constructed to
+harvest and present that to userspace.
+
+
+PCI bus scanning
+----------------
+
+In addition, PCI devices are scanned for PCI Bus Parity and SERR Errors
+in order to determine if errors are occurring during data transfers.
+
+The presence of PCI Parity errors must be examined with a grain of salt.
+There are several add-in adapters that do **not** follow the PCI specification
+with regards to Parity generation and reporting. The specification says
+the vendor should tie the parity status bits to 0 if they do not intend
+to generate parity. Some vendors do not do this, and thus the parity bit
+can "float" giving false positives.
+
+There is a PCI device attribute located in sysfs that is checked by
+the EDAC PCI scanning code. If that attribute is set, PCI parity/error
+scanning is skipped for that device. The attribute is::
+
+ broken_parity_status
+
+and is located in ``/sys/devices/pci<XXX>/0000:XX:YY.Z`` directories for
+PCI devices.
+
+
+Versioning
+----------
+
+EDAC is composed of a "core" module (``edac_core.ko``) and several Memory
+Controller (MC) driver modules. On a given system, the CORE is loaded
+and one MC driver will be loaded. Both the CORE and the MC driver (or
+``edac_device`` driver) have individual versions that reflect current
+release level of their respective modules.
+
+Thus, to "report" on what version a system is running, one must report
+both the CORE's and the MC driver's versions.
+
+
+Loading
+-------
+
+If ``edac`` was statically linked with the kernel then no loading
+is necessary. If ``edac`` was built as modules then simply modprobe
+the ``edac`` pieces that you need. You should be able to modprobe
+hardware-specific modules and have the dependencies load the necessary
+core modules.
+
+Example::
+
+ $ modprobe amd76x_edac
+
+loads both the ``amd76x_edac.ko`` memory controller module and the
+``edac_mc.ko`` core module.
+
+
+Sysfs interface
+---------------
+
+EDAC presents a ``sysfs`` interface for control and reporting purposes. It
+lives in the /sys/devices/system/edac directory.
+
+Within this directory there currently reside 2 components:
+
+ ======= ==============================
+ mc memory controller(s) system
+ pci PCI control and status system
+ ======= ==============================
+
+
+
+Memory Controller (mc) Model
+----------------------------
+
+Each ``mc`` device controls a set of memory modules [#f4]_. These modules
+are laid out in a Chip-Select Row (``csrowX``) and Channel table (``chX``).
+There can be multiple csrows and multiple channels.
+
+.. [#f4] Nowadays, the term DIMM (Dual In-line Memory Module) is widely
+ used to refer to a memory module, although there are other memory
+ packaging alternatives, like SO-DIMM, SIMM, etc. The UEFI
+ specification (Version 2.7) defines a memory module in the Common
+ Platform Error Record (CPER) section to be an SMBIOS Memory Device
+ (Type 17). Along this document, and inside the EDAC subsystem, the term
+ "dimm" is used for all memory modules, even when they use a
+ different kind of packaging.
+
+Memory controllers allow for several csrows, with 8 csrows being a
+typical value. Yet, the actual number of csrows depends on the layout of
+a given motherboard, memory controller and memory module characteristics.
+
+Dual channels allow for dual data length (e. g. 128 bits, on 64 bit systems)
+data transfers to/from the CPU from/to memory. Some newer chipsets allow
+for more than 2 channels, like Fully Buffered DIMMs (FB-DIMMs) memory
+controllers. The following example will assume 2 channels:
+
+ +------------+-----------------------+
+ | CS Rows | Channels |
+ +------------+-----------+-----------+
+ | | ``ch0`` | ``ch1`` |
+ +============+===========+===========+
+ | |**DIMM_A0**|**DIMM_B0**|
+ +------------+-----------+-----------+
+ | ``csrow0`` | rank0 | rank0 |
+ +------------+-----------+-----------+
+ | ``csrow1`` | rank1 | rank1 |
+ +------------+-----------+-----------+
+ | |**DIMM_A1**|**DIMM_B1**|
+ +------------+-----------+-----------+
+ | ``csrow2`` | rank0 | rank0 |
+ +------------+-----------+-----------+
+ | ``csrow3`` | rank1 | rank1 |
+ +------------+-----------+-----------+
+
+In the above example, there are 4 physical slots on the motherboard
+for memory DIMMs:
+
+ +---------+---------+
+ | DIMM_A0 | DIMM_B0 |
+ +---------+---------+
+ | DIMM_A1 | DIMM_B1 |
+ +---------+---------+
+
+Labels for these slots are usually silk-screened on the motherboard.
+Slots labeled ``A`` are channel 0 in this example. Slots labeled ``B`` are
+channel 1. Notice that there are two csrows possible on a physical DIMM.
+These csrows are allocated their csrow assignment based on the slot into
+which the memory DIMM is placed. Thus, when 1 DIMM is placed in each
+Channel, the csrows cross both DIMMs.
+
+Memory DIMMs come single or dual "ranked". A rank is a populated csrow.
+In the example above 2 dual ranked DIMMs are similarly placed. Thus,
+both csrow0 and csrow1 are populated. On the other hand, when 2 single
+ranked DIMMs are placed in slots DIMM_A0 and DIMM_B0, then they will
+have just one csrow (csrow0) and csrow1 will be empty. The pattern
+repeats itself for csrow2 and csrow3. Also note that some memory
+controllers don't have any logic to identify the memory module, see
+``rankX`` directories below.
+
+The representation of the above is reflected in the directory
+tree in EDAC's sysfs interface. Starting in directory
+``/sys/devices/system/edac/mc``, each memory controller will be
+represented by its own ``mcX`` directory, where ``X`` is the
+index of the MC::
+
+ ..../edac/mc/
+ |
+ |->mc0
+ |->mc1
+ |->mc2
+ ....
+
+Within each of the ``mcX`` directory are several EDAC control and
+attribute files.
+
+``mcX`` directories
+-------------------
+
+In ``mcX`` directories are EDAC control and attribute files for
+this ``X`` instance of the memory controllers.
+
+For a description of the sysfs API, please see:
+
+ Documentation/ABI/testing/sysfs-devices-edac
+
+
+``dimmX`` or ``rankX`` directories
+----------------------------------
+
+The recommended way to use the EDAC subsystem is to look at the information
+provided by the ``dimmX`` or ``rankX`` directories [#f5]_.
+
+A typical EDAC system has the following structure under
+``/sys/devices/system/edac/``\ [#f6]_::
+
+ /sys/devices/system/edac/
+ ├── mc
+ │   ├── mc0
+ │   │   ├── ce_count
+ │   │   ├── ce_noinfo_count
+ │   │   ├── dimm0
+ │   │   │   ├── dimm_ce_count
+ │   │   │   ├── dimm_dev_type
+ │   │   │   ├── dimm_edac_mode
+ │   │   │   ├── dimm_label
+ │   │   │   ├── dimm_location
+ │   │   │   ├── dimm_mem_type
+ │   │   │   ├── dimm_ue_count
+ │   │   │   ├── size
+ │   │   │   └── uevent
+ │   │   ├── max_location
+ │   │   ├── mc_name
+ │   │   ├── reset_counters
+ │   │   ├── seconds_since_reset
+ │   │   ├── size_mb
+ │   │   ├── ue_count
+ │   │   ├── ue_noinfo_count
+ │   │   └── uevent
+ │   ├── mc1
+ │   │   ├── ce_count
+ │   │   ├── ce_noinfo_count
+ │   │   ├── dimm0
+ │   │   │   ├── dimm_ce_count
+ │   │   │   ├── dimm_dev_type
+ │   │   │   ├── dimm_edac_mode
+ │   │   │   ├── dimm_label
+ │   │   │   ├── dimm_location
+ │   │   │   ├── dimm_mem_type
+ │   │   │   ├── dimm_ue_count
+ │   │   │   ├── size
+ │   │   │   └── uevent
+ │   │   ├── max_location
+ │   │   ├── mc_name
+ │   │   ├── reset_counters
+ │   │   ├── seconds_since_reset
+ │   │   ├── size_mb
+ │   │   ├── ue_count
+ │   │   ├── ue_noinfo_count
+ │   │   └── uevent
+ │   └── uevent
+ └── uevent
+
+In the ``dimmX`` directories are EDAC control and attribute files for
+this ``X`` memory module:
+
+- ``size`` - Total memory managed by this csrow attribute file
+
+ This attribute file displays, in count of megabytes, the memory
+ that this csrow contains.
+
+- ``dimm_ue_count`` - Uncorrectable Errors count attribute file
+
+ This attribute file displays the total count of uncorrectable
+ errors that have occurred on this DIMM. If panic_on_ue is set
+ this counter will not have a chance to increment, since EDAC
+ will panic the system.
+
+- ``dimm_ce_count`` - Correctable Errors count attribute file
+
+ This attribute file displays the total count of correctable
+ errors that have occurred on this DIMM. This count is very
+ important to examine. CEs provide early indications that a
+ DIMM is beginning to fail. This count field should be
+ monitored for non-zero values and report such information
+ to the system administrator.
+
+- ``dimm_dev_type`` - Device type attribute file
+
+ This attribute file will display what type of DRAM device is
+ being utilized on this DIMM.
+ Examples:
+
+ - x1
+ - x2
+ - x4
+ - x8
+
+- ``dimm_edac_mode`` - EDAC Mode of operation attribute file
+
+ This attribute file will display what type of Error detection
+ and correction is being utilized.
+
+- ``dimm_label`` - memory module label control file
+
+ This control file allows this DIMM to have a label assigned
+ to it. With this label in the module, when errors occur
+ the output can provide the DIMM label in the system log.
+ This becomes vital for panic events to isolate the
+ cause of the UE event.
+
+ DIMM Labels must be assigned after booting, with information
+ that correctly identifies the physical slot with its
+ silk screen label. This information is currently very
+ motherboard specific and determination of this information
+ must occur in userland at this time.
+
+- ``dimm_location`` - location of the memory module
+
+ The location can have up to 3 levels, and describe how the
+ memory controller identifies the location of a memory module.
+ Depending on the type of memory and memory controller, it
+ can be:
+
+ - *csrow* and *channel* - used when the memory controller
+ doesn't identify a single DIMM - e. g. in ``rankX`` dir;
+ - *branch*, *channel*, *slot* - typically used on FB-DIMM memory
+ controllers;
+ - *channel*, *slot* - used on Nehalem and newer Intel drivers.
+
+- ``dimm_mem_type`` - Memory Type attribute file
+
+ This attribute file will display what type of memory is currently
+ on this csrow. Normally, either buffered or unbuffered memory.
+ Examples:
+
+ - Registered-DDR
+ - Unbuffered-DDR
+
+.. [#f5] On some systems, the memory controller doesn't have any logic
+ to identify the memory module. On such systems, the directory is called ``rankX``.
+ On modern Intel memory controllers, the memory controller identifies the
+ memory modules directly. On such systems, the directory is called ``dimmX``.
+
+.. [#f6] There are also some ``power`` directories and ``subsystem``
+ symlinks inside the sysfs mapping that are automatically created by
+ the sysfs subsystem. Currently, they serve no purpose.
+
+
+System Logging
+--------------
+
+If logging for UEs and CEs is enabled, then system logs will contain
+information indicating that errors have been detected::
+
+ EDAC MC0: CE page 0x283, offset 0xce0, grain 8, syndrome 0x6ec3, row 0, channel 1 "DIMM_B1": amd76x_edac
+ EDAC MC0: CE page 0x1e5, offset 0xfb0, grain 8, syndrome 0xb741, row 0, channel 1 "DIMM_B1": amd76x_edac
+
+
+The structure of the message is:
+
+ +---------------------------------------+-------------+
+ | Content | Example |
+ +=======================================+=============+
+ | The memory controller | MC0 |
+ +---------------------------------------+-------------+
+ | Error type | CE |
+ +---------------------------------------+-------------+
+ | Memory page | 0x283 |
+ +---------------------------------------+-------------+
+ | Offset in the page | 0xce0 |
+ +---------------------------------------+-------------+
+ | The byte granularity | grain 8 |
+ | or resolution of the error | |
+ +---------------------------------------+-------------+
+ | The error syndrome | 0xb741 |
+ +---------------------------------------+-------------+
+ | Memory row | row 0 |
+ +---------------------------------------+-------------+
+ | Memory channel | channel 1 |
+ +---------------------------------------+-------------+
+ | DIMM label, if set prior | DIMM B1 |
+ +---------------------------------------+-------------+
+ | And then an optional, driver-specific | |
+ | message that may have additional | |
+ | information. | |
+ +---------------------------------------+-------------+
+
+Both UEs and CEs with no info will lack all but memory controller, error
+type, a notice of "no info" and then an optional, driver-specific error
+message.
+
+
+PCI Bus Parity Detection
+------------------------
+
+On Header Type 00 devices, the primary status is looked at for any
+parity error regardless of whether parity is enabled on the device or
+not. (The spec indicates parity is generated in some cases). On Header
+Type 01 bridges, the secondary status register is also looked at to see
+if parity occurred on the bus on the other side of the bridge.
+
+
+Sysfs configuration
+-------------------
+
+Under ``/sys/devices/system/edac/pci`` are control and attribute files as
+follows:
+
+
+- ``check_pci_parity`` - Enable/Disable PCI Parity checking control file
+
+ This control file enables or disables the PCI Bus Parity scanning
+ operation. Writing a 1 to this file enables the scanning. Writing
+ a 0 to this file disables the scanning.
+
+ Enable::
+
+ echo "1" >/sys/devices/system/edac/pci/check_pci_parity
+
+ Disable::
+
+ echo "0" >/sys/devices/system/edac/pci/check_pci_parity
+
+
+- ``pci_parity_count`` - Parity Count
+
+ This attribute file will display the number of parity errors that
+ have been detected.
+
+
+Module parameters
+-----------------
+
+- ``edac_mc_panic_on_ue`` - Panic on UE control file
+
+ An uncorrectable error will cause a machine panic. This is usually
+ desirable. It is a bad idea to continue when an uncorrectable error
+ occurs - it is indeterminate what was uncorrected and the operating
+ system context might be so mangled that continuing will lead to further
+ corruption. If the kernel has MCE configured, then EDAC will never
+ notice the UE.
+
+ LOAD TIME::
+
+ module/kernel parameter: edac_mc_panic_on_ue=[0|1]
+
+ RUN TIME::
+
+ echo "1" > /sys/module/edac_core/parameters/edac_mc_panic_on_ue
+
+
+- ``edac_mc_log_ue`` - Log UE control file
+
+
+ Generate kernel messages describing uncorrectable errors. These errors
+ are reported through the system message log system. UE statistics
+ will be accumulated even when UE logging is disabled.
+
+ LOAD TIME::
+
+ module/kernel parameter: edac_mc_log_ue=[0|1]
+
+ RUN TIME::
+
+ echo "1" > /sys/module/edac_core/parameters/edac_mc_log_ue
+
+
+- ``edac_mc_log_ce`` - Log CE control file
+
+
+ Generate kernel messages describing correctable errors. These
+ errors are reported through the system message log system.
+ CE statistics will be accumulated even when CE logging is disabled.
+
+ LOAD TIME::
+
+ module/kernel parameter: edac_mc_log_ce=[0|1]
+
+ RUN TIME::
+
+ echo "1" > /sys/module/edac_core/parameters/edac_mc_log_ce
+
+
+- ``edac_mc_poll_msec`` - Polling period control file
+
+
+ The time period, in milliseconds, for polling for error information.
+ Too small a value wastes resources. Too large a value might delay
+ necessary handling of errors and might loose valuable information for
+ locating the error. 1000 milliseconds (once each second) is the current
+ default. Systems which require all the bandwidth they can get, may
+ increase this.
+
+ LOAD TIME::
+
+ module/kernel parameter: edac_mc_poll_msec=[0|1]
+
+ RUN TIME::
+
+ echo "1000" > /sys/module/edac_core/parameters/edac_mc_poll_msec
+
+
+- ``panic_on_pci_parity`` - Panic on PCI PARITY Error
+
+
+ This control file enables or disables panicking when a parity
+ error has been detected.
+
+
+ module/kernel parameter::
+
+ edac_panic_on_pci_pe=[0|1]
+
+ Enable::
+
+ echo "1" > /sys/module/edac_core/parameters/edac_panic_on_pci_pe
+
+ Disable::
+
+ echo "0" > /sys/module/edac_core/parameters/edac_panic_on_pci_pe
+
+
+
+EDAC device type
+----------------
+
+In the header file, edac_pci.h, there is a series of edac_device structures
+and APIs for the EDAC_DEVICE.
+
+User space access to an edac_device is through the sysfs interface.
+
+At the location ``/sys/devices/system/edac`` (sysfs) new edac_device devices
+will appear.
+
+There is a three level tree beneath the above ``edac`` directory. For example,
+the ``test_device_edac`` device (found at the http://bluesmoke.sourceforget.net
+website) installs itself as::
+
+ /sys/devices/system/edac/test-instance
+
+in this directory are various controls, a symlink and one or more ``instance``
+directories.
+
+The standard default controls are:
+
+ ============== =======================================================
+ log_ce boolean to log CE events
+ log_ue boolean to log UE events
+ panic_on_ue boolean to ``panic`` the system if an UE is encountered
+ (default off, can be set true via startup script)
+ poll_msec time period between POLL cycles for events
+ ============== =======================================================
+
+The test_device_edac device adds at least one of its own custom control:
+
+ ============== ==================================================
+ test_bits which in the current test driver does nothing but
+ show how it is installed. A ported driver can
+ add one or more such controls and/or attributes
+ for specific uses.
+ One out-of-tree driver uses controls here to allow
+ for ERROR INJECTION operations to hardware
+ injection registers
+ ============== ==================================================
+
+The symlink points to the 'struct dev' that is registered for this edac_device.
+
+Instances
+---------
+
+One or more instance directories are present. For the ``test_device_edac``
+case:
+
+ +----------------+
+ | test-instance0 |
+ +----------------+
+
+
+In this directory there are two default counter attributes, which are totals of
+counter in deeper subdirectories.
+
+ ============== ====================================
+ ce_count total of CE events of subdirectories
+ ue_count total of UE events of subdirectories
+ ============== ====================================
+
+Blocks
+------
+
+At the lowest directory level is the ``block`` directory. There can be 0, 1
+or more blocks specified in each instance:
+
+ +-------------+
+ | test-block0 |
+ +-------------+
+
+In this directory the default attributes are:
+
+ ============== ================================================
+ ce_count which is counter of CE events for this ``block``
+ of hardware being monitored
+ ue_count which is counter of UE events for this ``block``
+ of hardware being monitored
+ ============== ================================================
+
+
+The ``test_device_edac`` device adds 4 attributes and 1 control:
+
+ ================== ====================================================
+ test-block-bits-0 for every POLL cycle this counter
+ is incremented
+ test-block-bits-1 every 10 cycles, this counter is bumped once,
+ and test-block-bits-0 is set to 0
+ test-block-bits-2 every 100 cycles, this counter is bumped once,
+ and test-block-bits-1 is set to 0
+ test-block-bits-3 every 1000 cycles, this counter is bumped once,
+ and test-block-bits-2 is set to 0
+ ================== ====================================================
+
+
+ ================== ====================================================
+ reset-counters writing ANY thing to this control will
+ reset all the above counters.
+ ================== ====================================================
+
+
+Use of the ``test_device_edac`` driver should enable any others to create their own
+unique drivers for their hardware systems.
+
+The ``test_device_edac`` sample driver is located at the
+http://bluesmoke.sourceforge.net project site for EDAC.
+
+
+Usage of EDAC APIs on Nehalem and newer Intel CPUs
+--------------------------------------------------
+
+On older Intel architectures, the memory controller was part of the North
+Bridge chipset. Nehalem, Sandy Bridge, Ivy Bridge, Haswell, Sky Lake and
+newer Intel architectures integrated an enhanced version of the memory
+controller (MC) inside the CPUs.
+
+This chapter will cover the differences of the enhanced memory controllers
+found on newer Intel CPUs, such as ``i7core_edac``, ``sb_edac`` and
+``sbx_edac`` drivers.
+
+.. note::
+
+ The Xeon E7 processor families use a separate chip for the memory
+ controller, called Intel Scalable Memory Buffer. This section doesn't
+ apply for such families.
+
+1) There is one Memory Controller per Quick Patch Interconnect
+ (QPI). At the driver, the term "socket" means one QPI. This is
+ associated with a physical CPU socket.
+
+ Each MC have 3 physical read channels, 3 physical write channels and
+ 3 logic channels. The driver currently sees it as just 3 channels.
+ Each channel can have up to 3 DIMMs.
+
+ The minimum known unity is DIMMs. There are no information about csrows.
+ As EDAC API maps the minimum unity is csrows, the driver sequentially
+ maps channel/DIMM into different csrows.
+
+ For example, supposing the following layout::
+
+ Ch0 phy rd0, wr0 (0x063f4031): 2 ranks, UDIMMs
+ dimm 0 1024 Mb offset: 0, bank: 8, rank: 1, row: 0x4000, col: 0x400
+ dimm 1 1024 Mb offset: 4, bank: 8, rank: 1, row: 0x4000, col: 0x400
+ Ch1 phy rd1, wr1 (0x063f4031): 2 ranks, UDIMMs
+ dimm 0 1024 Mb offset: 0, bank: 8, rank: 1, row: 0x4000, col: 0x400
+ Ch2 phy rd3, wr3 (0x063f4031): 2 ranks, UDIMMs
+ dimm 0 1024 Mb offset: 0, bank: 8, rank: 1, row: 0x4000, col: 0x400
+
+ The driver will map it as::
+
+ csrow0: channel 0, dimm0
+ csrow1: channel 0, dimm1
+ csrow2: channel 1, dimm0
+ csrow3: channel 2, dimm0
+
+ exports one DIMM per csrow.
+
+ Each QPI is exported as a different memory controller.
+
+2) The MC has the ability to inject errors to test drivers. The drivers
+ implement this functionality via some error injection nodes:
+
+ For injecting a memory error, there are some sysfs nodes, under
+ ``/sys/devices/system/edac/mc/mc?/``:
+
+ - ``inject_addrmatch/*``:
+ Controls the error injection mask register. It is possible to specify
+ several characteristics of the address to match an error code::
+
+ dimm = the affected dimm. Numbers are relative to a channel;
+ rank = the memory rank;
+ channel = the channel that will generate an error;
+ bank = the affected bank;
+ page = the page address;
+ column (or col) = the address column.
+
+ each of the above values can be set to "any" to match any valid value.
+
+ At driver init, all values are set to any.
+
+ For example, to generate an error at rank 1 of dimm 2, for any channel,
+ any bank, any page, any column::
+
+ echo 2 >/sys/devices/system/edac/mc/mc0/inject_addrmatch/dimm
+ echo 1 >/sys/devices/system/edac/mc/mc0/inject_addrmatch/rank
+
+ To return to the default behaviour of matching any, you can do::
+
+ echo any >/sys/devices/system/edac/mc/mc0/inject_addrmatch/dimm
+ echo any >/sys/devices/system/edac/mc/mc0/inject_addrmatch/rank
+
+ - ``inject_eccmask``:
+ specifies what bits will have troubles,
+
+ - ``inject_section``:
+ specifies what ECC cache section will get the error::
+
+ 3 for both
+ 2 for the highest
+ 1 for the lowest
+
+ - ``inject_type``:
+ specifies the type of error, being a combination of the following bits::
+
+ bit 0 - repeat
+ bit 1 - ecc
+ bit 2 - parity
+
+ - ``inject_enable``:
+ starts the error generation when something different than 0 is written.
+
+ All inject vars can be read. root permission is needed for write.
+
+ Datasheet states that the error will only be generated after a write on an
+ address that matches inject_addrmatch. It seems, however, that reading will
+ also produce an error.
+
+ For example, the following code will generate an error for any write access
+ at socket 0, on any DIMM/address on channel 2::
+
+ echo 2 >/sys/devices/system/edac/mc/mc0/inject_addrmatch/channel
+ echo 2 >/sys/devices/system/edac/mc/mc0/inject_type
+ echo 64 >/sys/devices/system/edac/mc/mc0/inject_eccmask
+ echo 3 >/sys/devices/system/edac/mc/mc0/inject_section
+ echo 1 >/sys/devices/system/edac/mc/mc0/inject_enable
+ dd if=/dev/mem of=/dev/null seek=16k bs=4k count=1 >& /dev/null
+
+ For socket 1, it is needed to replace "mc0" by "mc1" at the above
+ commands.
+
+ The generated error message will look like::
+
+ EDAC MC0: UE row 0, channel-a= 0 channel-b= 0 labels "-": NON_FATAL (addr = 0x0075b980, socket=0, Dimm=0, Channel=2, syndrome=0x00000040, count=1, Err=8c0000400001009f:4000080482 (read error: read ECC error))
+
+3) Corrected Error memory register counters
+
+ Those newer MCs have some registers to count memory errors. The driver
+ uses those registers to report Corrected Errors on devices with Registered
+ DIMMs.
+
+ However, those counters don't work with Unregistered DIMM. As the chipset
+ offers some counters that also work with UDIMMs (but with a worse level of
+ granularity than the default ones), the driver exposes those registers for
+ UDIMM memories.
+
+ They can be read by looking at the contents of ``all_channel_counts/``::
+
+ $ for i in /sys/devices/system/edac/mc/mc0/all_channel_counts/*; do echo $i; cat $i; done
+ /sys/devices/system/edac/mc/mc0/all_channel_counts/udimm0
+ 0
+ /sys/devices/system/edac/mc/mc0/all_channel_counts/udimm1
+ 0
+ /sys/devices/system/edac/mc/mc0/all_channel_counts/udimm2
+ 0
+
+ What happens here is that errors on different csrows, but at the same
+ dimm number will increment the same counter.
+ So, in this memory mapping::
+
+ csrow0: channel 0, dimm0
+ csrow1: channel 0, dimm1
+ csrow2: channel 1, dimm0
+ csrow3: channel 2, dimm0
+
+ The hardware will increment udimm0 for an error at the first dimm at either
+ csrow0, csrow2 or csrow3;
+
+ The hardware will increment udimm1 for an error at the second dimm at either
+ csrow0, csrow2 or csrow3;
+
+ The hardware will increment udimm2 for an error at the third dimm at either
+ csrow0, csrow2 or csrow3;
+
+4) Standard error counters
+
+ The standard error counters are generated when an mcelog error is received
+ by the driver. Since, with UDIMM, this is counted by software, it is
+ possible that some errors could be lost. With RDIMM's, they display the
+ contents of the registers
+
+Reference documents used on ``amd64_edac``
+------------------------------------------
+
+``amd64_edac`` module is based on the following documents
+(available from http://support.amd.com/en-us/search/tech-docs):
+
+1. :Title: BIOS and Kernel Developer's Guide for AMD Athlon 64 and AMD
+ Opteron Processors
+ :AMD publication #: 26094
+ :Revision: 3.26
+ :Link: http://support.amd.com/TechDocs/26094.PDF
+
+2. :Title: BIOS and Kernel Developer's Guide for AMD NPT Family 0Fh
+ Processors
+ :AMD publication #: 32559
+ :Revision: 3.00
+ :Issue Date: May 2006
+ :Link: http://support.amd.com/TechDocs/32559.pdf
+
+3. :Title: BIOS and Kernel Developer's Guide (BKDG) For AMD Family 10h
+ Processors
+ :AMD publication #: 31116
+ :Revision: 3.00
+ :Issue Date: September 07, 2007
+ :Link: http://support.amd.com/TechDocs/31116.pdf
+
+4. :Title: BIOS and Kernel Developer's Guide (BKDG) for AMD Family 15h
+ Models 30h-3Fh Processors
+ :AMD publication #: 49125
+ :Revision: 3.06
+ :Issue Date: 2/12/2015 (latest release)
+ :Link: http://support.amd.com/TechDocs/49125_15h_Models_30h-3Fh_BKDG.pdf
+
+5. :Title: BIOS and Kernel Developer's Guide (BKDG) for AMD Family 15h
+ Models 60h-6Fh Processors
+ :AMD publication #: 50742
+ :Revision: 3.01
+ :Issue Date: 7/23/2015 (latest release)
+ :Link: http://support.amd.com/TechDocs/50742_15h_Models_60h-6Fh_BKDG.pdf
+
+6. :Title: BIOS and Kernel Developer's Guide (BKDG) for AMD Family 16h
+ Models 00h-0Fh Processors
+ :AMD publication #: 48751
+ :Revision: 3.03
+ :Issue Date: 2/23/2015 (latest release)
+ :Link: http://support.amd.com/TechDocs/48751_16h_bkdg.pdf
+
+Credits
+=======
+
+* Written by Doug Thompson <dougthompson@xmission.com>
+
+ - 7 Dec 2005
+ - 17 Jul 2007 Updated
+
+* |copy| Mauro Carvalho Chehab
+
+ - 05 Aug 2009 Nehalem interface
+ - 26 Oct 2016 Converted to ReST and cleanups at the Nehalem section
+
+* EDAC authors/maintainers:
+
+ - Doug Thompson, Dave Jiang, Dave Peterson et al,
+ - Mauro Carvalho Chehab
+ - Borislav Petkov
+ - original author: Thayne Harbaugh
diff --git a/Documentation/admin-guide/README.rst b/Documentation/admin-guide/README.rst
index 9a969c0157f1..05301f03b717 100644
--- a/Documentation/admin-guide/README.rst
+++ b/Documentation/admin-guide/README.rst
@@ -165,7 +165,7 @@ Configuring the kernel
"make xconfig" Qt based configuration tool.
- "make gconfig" GTK+ based configuration tool.
+ "make gconfig" GTK based configuration tool.
"make oldconfig" Default all questions based on the contents of
your existing ./.config file and asking about
@@ -176,7 +176,7 @@ Configuring the kernel
values without prompting.
"make defconfig" Create a ./.config file by using the default
- symbol values from either arch/$ARCH/defconfig
+ symbol values from either arch/$ARCH/configs/defconfig
or arch/$ARCH/configs/${PLATFORM}_defconfig,
depending on the architecture.
@@ -259,12 +259,14 @@ Configuring the kernel
Compiling the kernel
--------------------
- - Make sure you have at least gcc 5.1 available.
+ - Make sure you have at least gcc 8.1 available.
For more information, refer to :ref:`Documentation/process/changes.rst <changes>`.
- - Do a ``make`` to create a compressed kernel image. It is also
- possible to do ``make install`` if you have lilo installed to suit the
- kernel makefiles, but you may want to check your particular lilo setup first.
+ - Do a ``make`` to create a compressed kernel image. It is also possible to do
+ ``make install`` if you have lilo installed or if your distribution has an
+ install script recognised by the kernel's installer. Most popular
+ distributions will have a recognized install script. You may want to
+ check your distribution's setup first.
To do the actual install, you have to be root, but none of the normal
build should require that. Don't take the name of root in vain.
@@ -301,32 +303,51 @@ Compiling the kernel
image (e.g. .../linux/arch/x86/boot/bzImage after compilation)
to the place where your regular bootable kernel is found.
- - Booting a kernel directly from a floppy without the assistance of a
- bootloader such as LILO, is no longer supported.
-
- If you boot Linux from the hard drive, chances are you use LILO, which
- uses the kernel image as specified in the file /etc/lilo.conf. The
- kernel image file is usually /vmlinuz, /boot/vmlinuz, /bzImage or
- /boot/bzImage. To use the new kernel, save a copy of the old image
- and copy the new image over the old one. Then, you MUST RERUN LILO
- to update the loading map! If you don't, you won't be able to boot
- the new kernel image.
-
- Reinstalling LILO is usually a matter of running /sbin/lilo.
- You may wish to edit /etc/lilo.conf to specify an entry for your
- old kernel image (say, /vmlinux.old) in case the new one does not
- work. See the LILO docs for more information.
-
- After reinstalling LILO, you should be all set. Shutdown the system,
+ - Booting a kernel directly from a storage device without the assistance
+ of a bootloader such as LILO or GRUB, is no longer supported in BIOS
+ (non-EFI systems). On UEFI/EFI systems, however, you can use EFISTUB
+ which allows the motherboard to boot directly to the kernel.
+ On modern workstations and desktops, it's generally recommended to use a
+ bootloader as difficulties can arise with multiple kernels and secure boot.
+ For more details on EFISTUB,
+ see "Documentation/admin-guide/efi-stub.rst".
+
+ - It's important to note that as of 2016 LILO (LInux LOader) is no longer in
+ active development, though as it was extremely popular, it often comes up
+ in documentation. Popular alternatives include GRUB2, rEFInd, Syslinux,
+ systemd-boot, or EFISTUB. For various reasons, it's not recommended to use
+ software that's no longer in active development.
+
+ - Chances are your distribution includes an install script and running
+ ``make install`` will be all that's needed. Should that not be the case
+ you'll have to identify your bootloader and reference its documentation or
+ configure your EFI.
+
+Legacy LILO Instructions
+------------------------
+
+
+ - If you use LILO the kernel images are specified in the file /etc/lilo.conf.
+ The kernel image file is usually /vmlinuz, /boot/vmlinuz, /bzImage or
+ /boot/bzImage. To use the new kernel, save a copy of the old image and copy
+ the new image over the old one. Then, you MUST RERUN LILO to update the
+ loading map! If you don't, you won't be able to boot the new kernel image.
+
+ - Reinstalling LILO is usually a matter of running /sbin/lilo. You may wish
+ to edit /etc/lilo.conf to specify an entry for your old kernel image
+ (say, /vmlinux.old) in case the new one does not work. See the LILO docs
+ for more information.
+
+ - After reinstalling LILO, you should be all set. Shutdown the system,
reboot, and enjoy!
- If you ever need to change the default root device, video mode,
- etc. in the kernel image, use your bootloader's boot options
- where appropriate. No need to recompile the kernel to change
- these parameters.
+ - If you ever need to change the default root device, video mode, etc. in the
+ kernel image, use your bootloader's boot options where appropriate. No need
+ to recompile the kernel to change these parameters.
- Reboot with the new kernel and enjoy.
+
If something goes wrong
-----------------------
@@ -335,5 +356,5 @@ instructions at 'Documentation/admin-guide/reporting-issues.rst'.
Hints on understanding kernel bug reports are in
'Documentation/admin-guide/bug-hunting.rst'. More on debugging the kernel
-with gdb is in 'Documentation/dev-tools/gdb-kernel-debugging.rst' and
-'Documentation/dev-tools/kgdb.rst'.
+with gdb is in 'Documentation/process/debugging/gdb-kernel-debugging.rst' and
+'Documentation/process/debugging/kgdb.rst'.
diff --git a/Documentation/admin-guide/abi-obsolete-files.rst b/Documentation/admin-guide/abi-obsolete-files.rst
new file mode 100644
index 000000000000..3061a916b4b5
--- /dev/null
+++ b/Documentation/admin-guide/abi-obsolete-files.rst
@@ -0,0 +1,7 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Obsolete ABI Files
+==================
+
+.. kernel-abi:: obsolete
+ :no-symbols:
diff --git a/Documentation/admin-guide/abi-obsolete.rst b/Documentation/admin-guide/abi-obsolete.rst
index d095867899c5..640f3903e847 100644
--- a/Documentation/admin-guide/abi-obsolete.rst
+++ b/Documentation/admin-guide/abi-obsolete.rst
@@ -1,3 +1,5 @@
+.. SPDX-License-Identifier: GPL-2.0
+
ABI obsolete symbols
====================
@@ -7,5 +9,5 @@ marked to be removed at some later point in time.
The description of the interface will document the reason why it is
obsolete and when it can be expected to be removed.
-.. kernel-abi:: $srctree/Documentation/ABI/obsolete
- :rst:
+.. kernel-abi:: obsolete
+ :no-files:
diff --git a/Documentation/admin-guide/abi-removed-files.rst b/Documentation/admin-guide/abi-removed-files.rst
new file mode 100644
index 000000000000..f1bdfadd2ec4
--- /dev/null
+++ b/Documentation/admin-guide/abi-removed-files.rst
@@ -0,0 +1,7 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Removed ABI Files
+=================
+
+.. kernel-abi:: removed
+ :no-symbols:
diff --git a/Documentation/admin-guide/abi-removed.rst b/Documentation/admin-guide/abi-removed.rst
index f7e9e43023c1..88832d3eacd6 100644
--- a/Documentation/admin-guide/abi-removed.rst
+++ b/Documentation/admin-guide/abi-removed.rst
@@ -1,5 +1,7 @@
+.. SPDX-License-Identifier: GPL-2.0
+
ABI removed symbols
===================
-.. kernel-abi:: $srctree/Documentation/ABI/removed
- :rst:
+.. kernel-abi:: removed
+ :no-files:
diff --git a/Documentation/admin-guide/abi-stable-files.rst b/Documentation/admin-guide/abi-stable-files.rst
new file mode 100644
index 000000000000..f867738fc178
--- /dev/null
+++ b/Documentation/admin-guide/abi-stable-files.rst
@@ -0,0 +1,7 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Stable ABI Files
+================
+
+.. kernel-abi:: stable
+ :no-symbols:
diff --git a/Documentation/admin-guide/abi-stable.rst b/Documentation/admin-guide/abi-stable.rst
index 70490736e0d3..528c68401f4b 100644
--- a/Documentation/admin-guide/abi-stable.rst
+++ b/Documentation/admin-guide/abi-stable.rst
@@ -1,3 +1,5 @@
+.. SPDX-License-Identifier: GPL-2.0
+
ABI stable symbols
==================
@@ -10,5 +12,5 @@ for at least 2 years.
Most interfaces (like syscalls) are expected to never change and always
be available.
-.. kernel-abi:: $srctree/Documentation/ABI/stable
- :rst:
+.. kernel-abi:: stable
+ :no-files:
diff --git a/Documentation/admin-guide/abi-testing-files.rst b/Documentation/admin-guide/abi-testing-files.rst
new file mode 100644
index 000000000000..1da868e42fdb
--- /dev/null
+++ b/Documentation/admin-guide/abi-testing-files.rst
@@ -0,0 +1,7 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Testing ABI Files
+=================
+
+.. kernel-abi:: testing
+ :no-symbols:
diff --git a/Documentation/admin-guide/abi-testing.rst b/Documentation/admin-guide/abi-testing.rst
index b205b16a72d0..6153ebd38e2d 100644
--- a/Documentation/admin-guide/abi-testing.rst
+++ b/Documentation/admin-guide/abi-testing.rst
@@ -1,3 +1,5 @@
+.. SPDX-License-Identifier: GPL-2.0
+
ABI testing symbols
===================
@@ -16,5 +18,5 @@ Programs that use these interfaces are strongly encouraged to add their
name to the description of these interfaces, so that the kernel
developers can easily notify them if any changes occur.
-.. kernel-abi:: $srctree/Documentation/ABI/testing
- :rst:
+.. kernel-abi:: testing
+ :no-files:
diff --git a/Documentation/admin-guide/abi.rst b/Documentation/admin-guide/abi.rst
index bcab3ef2597c..c6039359e585 100644
--- a/Documentation/admin-guide/abi.rst
+++ b/Documentation/admin-guide/abi.rst
@@ -1,7 +1,14 @@
+.. SPDX-License-Identifier: GPL-2.0
+
=====================
Linux ABI description
=====================
+.. kernel-abi:: README
+
+ABI symbols
+-----------
+
.. toctree::
:maxdepth: 2
@@ -9,3 +16,14 @@ Linux ABI description
abi-testing
abi-obsolete
abi-removed
+
+ABI files
+---------
+
+.. toctree::
+ :maxdepth: 2
+
+ abi-stable-files
+ abi-testing-files
+ abi-obsolete-files
+ abi-removed-files
diff --git a/Documentation/admin-guide/acpi/cppc_sysfs.rst b/Documentation/admin-guide/acpi/cppc_sysfs.rst
index e53d76365aa7..36981c667823 100644
--- a/Documentation/admin-guide/acpi/cppc_sysfs.rst
+++ b/Documentation/admin-guide/acpi/cppc_sysfs.rst
@@ -75,4 +75,4 @@ taking two different snapshots of feedback counters at time T1 and T2.
delivered_counter_delta = fbc_t2[del] - fbc_t1[del]
reference_counter_delta = fbc_t2[ref] - fbc_t1[ref]
- delivered_perf = (refernce_perf x delivered_counter_delta) / reference_counter_delta
+ delivered_perf = (reference_perf x delivered_counter_delta) / reference_counter_delta
diff --git a/Documentation/admin-guide/acpi/ssdt-overlays.rst b/Documentation/admin-guide/acpi/ssdt-overlays.rst
index b5fbf54dca19..5ea9f4a3b76e 100644
--- a/Documentation/admin-guide/acpi/ssdt-overlays.rst
+++ b/Documentation/admin-guide/acpi/ssdt-overlays.rst
@@ -103,7 +103,7 @@ allows a persistent, OS independent way of storing the user defined SSDTs. There
is also work underway to implement EFI support for loading user defined SSDTs
and using this method will make it easier to convert to the EFI loading
mechanism when that will arrive. To enable it, the
-CONFIG_EFI_CUSTOM_SSDT_OVERLAYS shoyld be chosen to y.
+CONFIG_EFI_CUSTOM_SSDT_OVERLAYS should be chosen to y.
In order to load SSDTs from an EFI variable the ``"efivar_ssdt=..."`` kernel
command line parameter can be used (the name has a limitation of 16 characters).
diff --git a/Documentation/admin-guide/aoe/udev.txt b/Documentation/admin-guide/aoe/udev.txt
index 5fb756466bc7..d55ecb411c21 100644
--- a/Documentation/admin-guide/aoe/udev.txt
+++ b/Documentation/admin-guide/aoe/udev.txt
@@ -2,7 +2,7 @@
# They may be installed along the following lines. Check the section
# 8 udev manpage to see whether your udev supports SUBSYSTEM, and
# whether it uses one or two equal signs for SUBSYSTEM and KERNEL.
-#
+#
# ecashin@makki ~$ su
# Password:
# bash# find /etc -type f -name udev.conf
@@ -13,7 +13,7 @@
# 10-wacom.rules 50-udev.rules
# bash# cp /path/to/linux/Documentation/admin-guide/aoe/udev.txt \
# /etc/udev/rules.d/60-aoe.rules
-#
+#
# aoe char devices
SUBSYSTEM=="aoe", KERNEL=="discover", NAME="etherd/%k", GROUP="disk", MODE="0220"
@@ -22,5 +22,5 @@ SUBSYSTEM=="aoe", KERNEL=="interfaces", NAME="etherd/%k", GROUP="disk", MODE="02
SUBSYSTEM=="aoe", KERNEL=="revalidate", NAME="etherd/%k", GROUP="disk", MODE="0220"
SUBSYSTEM=="aoe", KERNEL=="flush", NAME="etherd/%k", GROUP="disk", MODE="0220"
-# aoe block devices
+# aoe block devices
KERNEL=="etherd*", GROUP="disk"
diff --git a/Documentation/admin-guide/bcache.rst b/Documentation/admin-guide/bcache.rst
index bb5032a99234..f71f349553e4 100644
--- a/Documentation/admin-guide/bcache.rst
+++ b/Documentation/admin-guide/bcache.rst
@@ -17,8 +17,7 @@ The latest bcache kernel code can be found from mainline Linux kernel:
It's designed around the performance characteristics of SSDs - it only allocates
in erase block sized buckets, and it uses a hybrid btree/log to track cached
extents (which can be anywhere from a single sector to the bucket size). It's
-designed to avoid random writes at all costs; it fills up an erase block
-sequentially, then issues a discard before reusing it.
+designed to avoid random writes at all costs.
Both writethrough and writeback caching are supported. Writeback defaults to
off, but can be switched on and off arbitrarily at runtime. Bcache goes to
@@ -508,9 +507,6 @@ cache_miss_collisions
cache miss, but raced with a write and data was already present (usually 0
since the synchronization for cache misses was rewritten)
-cache_readaheads
- Count of times readahead occurred.
-
Sysfs - cache set
~~~~~~~~~~~~~~~~~
@@ -621,19 +617,11 @@ bucket_size
cache_replacement_policy
One of either lru, fifo or random.
-discard
- Boolean; if on a discard/TRIM will be issued to each bucket before it is
- reused. Defaults to off, since SATA TRIM is an unqueued command (and thus
- slow).
-
freelist_percent
Size of the freelist as a percentage of nbuckets. Can be written to to
increase the number of buckets kept on the freelist, which lets you
artificially reduce the size of the cache at runtime. Mostly for testing
- purposes (i.e. testing how different size caches affect your hit rate), but
- since buckets are discarded when they move on to the freelist will also make
- the SSD's garbage collection easier by effectively giving it more reserved
- space.
+ purposes (i.e. testing how different size caches affect your hit rate).
io_errors
Number of errors that have occurred, decayed by io_error_halflife.
diff --git a/Documentation/admin-guide/blockdev/index.rst b/Documentation/admin-guide/blockdev/index.rst
index 957ccf617797..3262397ebe8f 100644
--- a/Documentation/admin-guide/blockdev/index.rst
+++ b/Documentation/admin-guide/blockdev/index.rst
@@ -11,6 +11,7 @@ Block Devices
nbd
paride
ramdisk
+ zoned_loop
zram
drbd/index
diff --git a/Documentation/admin-guide/blockdev/paride.rst b/Documentation/admin-guide/blockdev/paride.rst
index e85ad37cc0e5..b2f627d4c2f8 100644
--- a/Documentation/admin-guide/blockdev/paride.rst
+++ b/Documentation/admin-guide/blockdev/paride.rst
@@ -118,7 +118,7 @@ and high-level drivers that you would use:
================ ============ ========
All parports and all protocol drivers are probed automatically unless probe=0
-parameter is used. So just "modprobe epat" is enough for a Imation SuperDisk
+parameter is used. So just "modprobe epat" is enough for an Imation SuperDisk
drive to work.
Manual device creation::
diff --git a/Documentation/admin-guide/blockdev/zoned_loop.rst b/Documentation/admin-guide/blockdev/zoned_loop.rst
new file mode 100644
index 000000000000..806adde664db
--- /dev/null
+++ b/Documentation/admin-guide/blockdev/zoned_loop.rst
@@ -0,0 +1,182 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=======================
+Zoned Loop Block Device
+=======================
+
+.. Contents:
+
+ 1) Overview
+ 2) Creating a Zoned Device
+ 3) Deleting a Zoned Device
+ 4) Example
+
+
+1) Overview
+-----------
+
+The zoned loop block device driver (zloop) allows a user to create a zoned block
+device using one regular file per zone as backing storage. This driver does not
+directly control any hardware and uses read, write and truncate operations to
+regular files of a file system to emulate a zoned block device.
+
+Using zloop, zoned block devices with a configurable capacity, zone size and
+number of conventional zones can be created. The storage for each zone of the
+device is implemented using a regular file with a maximum size equal to the zone
+size. The size of a file backing a conventional zone is always equal to the zone
+size. The size of a file backing a sequential zone indicates the amount of data
+sequentially written to the file, that is, the size of the file directly
+indicates the position of the write pointer of the zone.
+
+When resetting a sequential zone, its backing file size is truncated to zero.
+Conversely, for a zone finish operation, the backing file is truncated to the
+zone size. With this, the maximum capacity of a zloop zoned block device created
+can be larger configured to be larger than the storage space available on the
+backing file system. Of course, for such configuration, writing more data than
+the storage space available on the backing file system will result in write
+errors.
+
+The zoned loop block device driver implements a complete zone transition state
+machine. That is, zones can be empty, implicitly opened, explicitly opened,
+closed or full. The current implementation does not support any limits on the
+maximum number of open and active zones.
+
+No user tools are necessary to create and delete zloop devices.
+
+2) Creating a Zoned Device
+--------------------------
+
+Once the zloop module is loaded (or if zloop is compiled in the kernel), the
+character device file /dev/zloop-control can be used to add a zloop device.
+This is done by writing an "add" command directly to the /dev/zloop-control
+device::
+
+ $ modprobe zloop
+ $ ls -l /dev/zloop*
+ crw-------. 1 root root 10, 123 Jan 6 19:18 /dev/zloop-control
+
+ $ mkdir -p <base directory/<device ID>
+ $ echo "add [options]" > /dev/zloop-control
+
+The options available for the add command can be listed by reading the
+/dev/zloop-control device::
+
+ $ cat /dev/zloop-control
+ add id=%d,capacity_mb=%u,zone_size_mb=%u,zone_capacity_mb=%u,conv_zones=%u,base_dir=%s,nr_queues=%u,queue_depth=%u,buffered_io
+ remove id=%d
+
+In more details, the options that can be used with the "add" command are as
+follows.
+
+=================== =========================================================
+id Device number (the X in /dev/zloopX).
+ Default: automatically assigned.
+capacity_mb Device total capacity in MiB. This is always rounded up
+ to the nearest higher multiple of the zone size.
+ Default: 16384 MiB (16 GiB).
+zone_size_mb Device zone size in MiB. Default: 256 MiB.
+zone_capacity_mb Device zone capacity (must always be equal to or lower
+ than the zone size. Default: zone size.
+conv_zones Total number of conventioanl zones starting from
+ sector 0
+ Default: 8
+base_dir Path to the base directory where to create the directory
+ containing the zone files of the device.
+ Default=/var/local/zloop.
+ The device directory containing the zone files is always
+ named with the device ID. E.g. the default zone file
+ directory for /dev/zloop0 is /var/local/zloop/0.
+nr_queues Number of I/O queues of the zoned block device. This
+ value is always capped by the number of online CPUs
+ Default: 1
+queue_depth Maximum I/O queue depth per I/O queue.
+ Default: 64
+buffered_io Do buffered IOs instead of direct IOs (default: false)
+zone_append Enable or disable a zloop device native zone append
+ support.
+ Default: 1 (enabled).
+ If native zone append support is disabled, the block layer
+ will emulate this operation using regular write
+ operations.
+ordered_zone_append Enable zloop mitigation of zone append reordering.
+ Default: disabled.
+ This is useful for testing file systems file data mapping
+ (extents), as when enabled, this can significantly reduce
+ the number of data extents needed to for a file data
+ mapping.
+=================== =========================================================
+
+3) Deleting a Zoned Device
+--------------------------
+
+Deleting an unused zoned loop block device is done by issuing the "remove"
+command to /dev/zloop-control, specifying the ID of the device to remove::
+
+ $ echo "remove id=X" > /dev/zloop-control
+
+The remove command does not have any option.
+
+A zoned device that was removed can be re-added again without any change to the
+state of the device zones: the device zones are restored to their last state
+before the device was removed. Adding again a zoned device after it was removed
+must always be done using the same configuration as when the device was first
+added. If a zone configuration change is detected, an error will be returned and
+the zoned device will not be created.
+
+To fully delete a zoned device, after executing the remove operation, the device
+base directory containing the backing files of the device zones must be deleted.
+
+4) Example
+----------
+
+The following sequence of commands creates a 2GB zoned device with zones of 64
+MB and a zone capacity of 63 MB::
+
+ $ modprobe zloop
+ $ mkdir -p /var/local/zloop/0
+ $ echo "add capacity_mb=2048,zone_size_mb=64,zone_capacity=63MB" > /dev/zloop-control
+
+For the device created (/dev/zloop0), the zone backing files are all created
+under the default base directory (/var/local/zloop)::
+
+ $ ls -l /var/local/zloop/0
+ total 0
+ -rw-------. 1 root root 67108864 Jan 6 22:23 cnv-000000
+ -rw-------. 1 root root 67108864 Jan 6 22:23 cnv-000001
+ -rw-------. 1 root root 67108864 Jan 6 22:23 cnv-000002
+ -rw-------. 1 root root 67108864 Jan 6 22:23 cnv-000003
+ -rw-------. 1 root root 67108864 Jan 6 22:23 cnv-000004
+ -rw-------. 1 root root 67108864 Jan 6 22:23 cnv-000005
+ -rw-------. 1 root root 67108864 Jan 6 22:23 cnv-000006
+ -rw-------. 1 root root 67108864 Jan 6 22:23 cnv-000007
+ -rw-------. 1 root root 0 Jan 6 22:23 seq-000008
+ -rw-------. 1 root root 0 Jan 6 22:23 seq-000009
+ ...
+
+The zoned device created (/dev/zloop0) can then be used normally::
+
+ $ lsblk -z
+ NAME ZONED ZONE-SZ ZONE-NR ZONE-AMAX ZONE-OMAX ZONE-APP ZONE-WGRAN
+ zloop0 host-managed 64M 32 0 0 1M 4K
+ $ blkzone report /dev/zloop0
+ start: 0x000000000, len 0x020000, cap 0x020000, wptr 0x000000 reset:0 non-seq:0, zcond: 0(nw) [type: 1(CONVENTIONAL)]
+ start: 0x000020000, len 0x020000, cap 0x020000, wptr 0x000000 reset:0 non-seq:0, zcond: 0(nw) [type: 1(CONVENTIONAL)]
+ start: 0x000040000, len 0x020000, cap 0x020000, wptr 0x000000 reset:0 non-seq:0, zcond: 0(nw) [type: 1(CONVENTIONAL)]
+ start: 0x000060000, len 0x020000, cap 0x020000, wptr 0x000000 reset:0 non-seq:0, zcond: 0(nw) [type: 1(CONVENTIONAL)]
+ start: 0x000080000, len 0x020000, cap 0x020000, wptr 0x000000 reset:0 non-seq:0, zcond: 0(nw) [type: 1(CONVENTIONAL)]
+ start: 0x0000a0000, len 0x020000, cap 0x020000, wptr 0x000000 reset:0 non-seq:0, zcond: 0(nw) [type: 1(CONVENTIONAL)]
+ start: 0x0000c0000, len 0x020000, cap 0x020000, wptr 0x000000 reset:0 non-seq:0, zcond: 0(nw) [type: 1(CONVENTIONAL)]
+ start: 0x0000e0000, len 0x020000, cap 0x020000, wptr 0x000000 reset:0 non-seq:0, zcond: 0(nw) [type: 1(CONVENTIONAL)]
+ start: 0x000100000, len 0x020000, cap 0x01f800, wptr 0x000000 reset:0 non-seq:0, zcond: 1(em) [type: 2(SEQ_WRITE_REQUIRED)]
+ start: 0x000120000, len 0x020000, cap 0x01f800, wptr 0x000000 reset:0 non-seq:0, zcond: 1(em) [type: 2(SEQ_WRITE_REQUIRED)]
+ ...
+
+Deleting this device is done using the command::
+
+ $ echo "remove id=0" > /dev/zloop-control
+
+The removed device can be re-added again using the same "add" command as when
+the device was first created. To fully delete a zoned device, its backing files
+should also be deleted after executing the remove command::
+
+ $ rm -r /var/local/zloop/0
diff --git a/Documentation/admin-guide/blockdev/zram.rst b/Documentation/admin-guide/blockdev/zram.rst
index e4551579cb12..3e273c1bb749 100644
--- a/Documentation/admin-guide/blockdev/zram.rst
+++ b/Documentation/admin-guide/blockdev/zram.rst
@@ -47,12 +47,14 @@ The list of possible return codes:
-ENOMEM zram was not able to allocate enough memory to fulfil your
needs.
-EINVAL invalid input has been provided.
+-EAGAIN re-try operation later (e.g. when attempting to run recompress
+ and writeback simultaneously).
======== =============================================================
If you use 'echo', the returned value is set by the 'echo' utility,
and, in general case, something like::
- echo 3 > /sys/block/zram0/max_comp_streams
+ echo foo > /sys/block/zram0/comp_algorithm
if [ $? -ne 0 ]; then
handle_error
fi
@@ -71,21 +73,7 @@ This creates 4 devices: /dev/zram{0,1,2,3}
num_devices parameter is optional and tells zram how many devices should be
pre-created. Default: 1.
-2) Set max number of compression streams
-========================================
-
-Regardless of the value passed to this attribute, ZRAM will always
-allocate multiple compression streams - one per online CPU - thus
-allowing several concurrent compression operations. The number of
-allocated compression streams goes down when some of the CPUs
-become offline. There is no single-compression-stream mode anymore,
-unless you are running a UP system or have only 1 CPU online.
-
-To find out how many streams are currently available::
-
- cat /sys/block/zram0/max_comp_streams
-
-3) Select compression algorithm
+2) Select compression algorithm
===============================
Using comp_algorithm device attribute one can see available and
@@ -102,15 +90,39 @@ Examples::
#select lzo compression algorithm
echo lzo > /sys/block/zram0/comp_algorithm
-For the time being, the `comp_algorithm` content does not necessarily
-show every compression algorithm supported by the kernel. We keep this
-list primarily to simplify device configuration and one can configure
-a new device with a compression algorithm that is not listed in
-`comp_algorithm`. The thing is that, internally, ZRAM uses Crypto API
-and, if some of the algorithms were built as modules, it's impossible
-to list all of them using, for instance, /proc/crypto or any other
-method. This, however, has an advantage of permitting the usage of
-custom crypto compression modules (implementing S/W or H/W compression).
+For the time being, the `comp_algorithm` content shows only compression
+algorithms that are supported by zram.
+
+3) Set compression algorithm parameters: Optional
+=================================================
+
+Compression algorithms may support specific parameters which can be
+tweaked for particular dataset. ZRAM has an `algorithm_params` device
+attribute which provides a per-algorithm params configuration.
+
+For example, several compression algorithms support `level` parameter.
+In addition, certain compression algorithms support pre-trained dictionaries,
+which significantly change algorithms' characteristics. In order to configure
+compression algorithm to use external pre-trained dictionary, pass full
+path to the `dict` along with other parameters::
+
+ #pass path to pre-trained zstd dictionary
+ echo "algo=zstd dict=/etc/dictionary" > /sys/block/zram0/algorithm_params
+
+ #same, but using algorithm priority
+ echo "priority=1 dict=/etc/dictionary" > \
+ /sys/block/zram0/algorithm_params
+
+ #pass path to pre-trained zstd dictionary and compression level
+ echo "algo=zstd level=8 dict=/etc/dictionary" > \
+ /sys/block/zram0/algorithm_params
+
+Parameters are algorithm specific: not all algorithms support pre-trained
+dictionaries, not all algorithms support `level`. Furthermore, for certain
+algorithms `level` controls the compression level (the higher the value the
+better the compression ratio, it even can take negatives values for some
+algorithms), for other algorithms `level` is acceleration level (the higher
+the value the lower the compression ratio).
4) Set Disksize
===============
@@ -202,9 +214,8 @@ mem_limit WO specifies the maximum amount of memory ZRAM can
writeback_limit WO specifies the maximum amount of write IO zram
can write out to backing device as 4KB unit
writeback_limit_enable RW show and set writeback_limit feature
-max_comp_streams RW the number of possible concurrent compress
- operations
comp_algorithm RW show and change the compression algorithm
+algorithm_params WO setup compression algorithm parameters
compact WO trigger memory compaction
debug_stat RO this file is used for zram debugging purposes
backing_dev RW set up backend storage for zram to write out
@@ -284,7 +295,7 @@ a single line of text and contains the following stats separated by whitespace:
============== =============================================================
9) Deactivate
-=============
+==============
::
@@ -306,6 +317,26 @@ a single line of text and contains the following stats separated by whitespace:
Optional Feature
================
+IDLE pages tracking
+-------------------
+
+zram has built-in support for idle pages tracking (that is, allocated but
+not used pages). This feature is useful for e.g. zram writeback and
+recompression. In order to mark pages as idle, execute the following command::
+
+ echo all > /sys/block/zramX/idle
+
+This will mark all allocated zram pages as idle. The idle mark will be
+removed only when the page (block) is accessed (e.g. overwritten or freed).
+Additionally, when CONFIG_ZRAM_TRACK_ENTRY_ACTIME is enabled, pages can be
+marked as idle based on how many seconds have passed since the last access to
+a particular zram page::
+
+ echo 86400 > /sys/block/zramX/idle
+
+In this example, all pages which haven't been accessed in more than 86400
+seconds (one day) will be marked idle.
+
writeback
---------
@@ -320,24 +351,7 @@ If admin wants to use incompressible page writeback, they could do it via::
echo huge > /sys/block/zramX/writeback
-To use idle page writeback, first, user need to declare zram pages
-as idle::
-
- echo all > /sys/block/zramX/idle
-
-From now on, any pages on zram are idle pages. The idle mark
-will be removed until someone requests access of the block.
-IOW, unless there is access request, those pages are still idle pages.
-Additionally, when CONFIG_ZRAM_MEMORY_TRACKING is enabled pages can be
-marked as idle based on how long (in seconds) it's been since they were
-last accessed::
-
- echo 86400 > /sys/block/zramX/idle
-
-In this example all pages which haven't been accessed in more than 86400
-seconds (one day) will be marked idle.
-
-Admin can request writeback of those idle pages at right timing via::
+Admin can request writeback of idle pages at right timing via::
echo idle > /sys/block/zramX/writeback
@@ -358,6 +372,23 @@ they could write a page index into the interface::
echo "page_index=1251" > /sys/block/zramX/writeback
+In Linux 6.16 this interface underwent some rework. First, the interface
+now supports `key=value` format for all of its parameters (`type=huge_idle`,
+etc.) Second, the support for `page_indexes` was introduced, which specify
+`LOW-HIGH` range (or ranges) of pages to be written-back. This reduces the
+number of syscalls, but more importantly this enables optimal post-processing
+target selection strategy. Usage example::
+
+ echo "type=idle" > /sys/block/zramX/writeback
+ echo "page_indexes=1-100 page_indexes=200-300" > \
+ /sys/block/zramX/writeback
+
+We also now permit multiple page_index params per call and a mix of
+single pages and page ranges::
+
+ echo page_index=42 page_index=99 page_indexes=100-200 \
+ page_indexes=500-700 > /sys/block/zramX/writeback
+
If there are lots of write IO with flash device, potentially, it has
flash wearout problem so that admin needs to design write limitation
to guarantee storage health for entire product life.
@@ -466,7 +497,10 @@ of equal or greater size:::
#recompress idle pages larger than 2000 bytes
echo "type=idle threshold=2000" > /sys/block/zramX/recompress
-Recompression of idle pages requires memory tracking.
+It is also possible to limit the number of pages zram re-compression will
+attempt to recompress:::
+
+ echo "type=huge_idle max_pages=42" > /sys/block/zramX/recompress
During re-compression for every page, that matches re-compression criteria,
ZRAM iterates the list of registered alternative compression algorithms in
@@ -482,11 +516,14 @@ registered compression algorithms, increases our chances of finding the
algorithm that successfully compresses a particular page. Sometimes, however,
it is convenient (and sometimes even necessary) to limit recompression to
only one particular algorithm so that it will not try any other algorithms.
-This can be achieved by providing a algo=NAME parameter:::
+This can be achieved by providing a `algo` or `priority` parameter:::
#use zstd algorithm only (if registered)
echo "type=huge algo=zstd" > /sys/block/zramX/recompress
+ #use zstd algorithm only (if zstd was registered under priority 1)
+ echo "type=huge priority=1" > /sys/block/zramX/recompress
+
memory tracking
===============
diff --git a/Documentation/admin-guide/bootconfig.rst b/Documentation/admin-guide/bootconfig.rst
index 91339efdcb54..7a86042c9b6d 100644
--- a/Documentation/admin-guide/bootconfig.rst
+++ b/Documentation/admin-guide/bootconfig.rst
@@ -265,7 +265,7 @@ The final kernel cmdline will be the following::
Config File Limitation
======================
-Currently the maximum config size size is 32KB and the total key-words (not
+Currently the maximum config size is 32KB and the total key-words (not
key-value entries) must be under 1024 nodes.
Note: this is not the number of entries but nodes, an entry must consume
more than 2 nodes (a key-word and a value). So theoretically, it will be
diff --git a/Documentation/admin-guide/braille-console.rst b/Documentation/admin-guide/braille-console.rst
index 18e79337dcfd..153472e93cae 100644
--- a/Documentation/admin-guide/braille-console.rst
+++ b/Documentation/admin-guide/braille-console.rst
@@ -21,8 +21,8 @@ override the baud rate to 115200, etc.
By default, the braille device will just show the last kernel message (console
mode). To review previous messages, press the Insert key to switch to the VT
review mode. In review mode, the arrow keys permit to browse in the VT content,
-:kbd:`PAGE-UP`/:kbd:`PAGE-DOWN` keys go at the top/bottom of the screen, and
-the :kbd:`HOME` key goes back
+`PAGE-UP`/`PAGE-DOWN` keys go at the top/bottom of the screen, and
+the `HOME` key goes back
to the cursor, hence providing very basic screen reviewing facility.
Sound feedback can be obtained by adding the ``braille_console.sound=1`` kernel
diff --git a/Documentation/admin-guide/bug-bisect.rst b/Documentation/admin-guide/bug-bisect.rst
index 325c5d0ed34a..f4f867cabb17 100644
--- a/Documentation/admin-guide/bug-bisect.rst
+++ b/Documentation/admin-guide/bug-bisect.rst
@@ -1,76 +1,165 @@
-Bisecting a bug
-+++++++++++++++
+.. SPDX-License-Identifier: (GPL-2.0+ OR CC-BY-4.0)
+.. [see the bottom of this file for redistribution information]
-Last updated: 28 October 2016
+======================
+Bisecting a regression
+======================
-Introduction
-============
+This document describes how to use a ``git bisect`` to find the source code
+change that broke something -- for example when some functionality stopped
+working after upgrading from Linux 6.0 to 6.1.
-Always try the latest kernel from kernel.org and build from source. If you are
-not confident in doing that please report the bug to your distribution vendor
-instead of to a kernel developer.
+The text focuses on the gist of the process. If you are new to bisecting the
+kernel, better follow Documentation/admin-guide/verify-bugs-and-bisect-regressions.rst
+instead: it depicts everything from start to finish while covering multiple
+aspects even kernel developers occasionally forget. This includes detecting
+situations early where a bisection would be a waste of time, as nobody would
+care about the result -- for example, because the problem happens after the
+kernel marked itself as 'tainted', occurs in an abandoned version, was already
+fixed, or is caused by a .config change you or your Linux distributor performed.
-Finding bugs is not always easy. Have a go though. If you can't find it don't
-give up. Report as much as you have found to the relevant maintainer. See
-MAINTAINERS for who that is for the subsystem you have worked on.
+Finding the change causing a kernel issue using a bisection
+===========================================================
-Before you submit a bug report read
-'Documentation/admin-guide/reporting-issues.rst'.
+*Note: the following process assumes you prepared everything for a bisection.
+This includes having a Git clone with the appropriate sources, installing the
+software required to build and install kernels, as well as a .config file stored
+in a safe place (the following example assumes '~/prepared_kernel_.config') to
+use as pristine base at each bisection step; ideally, you have also worked out
+a fully reliable and straight-forward way to reproduce the regression, too.*
-Devices not appearing
-=====================
+* Preparation: start the bisection and tell Git about the points in the history
+ you consider to be working and broken, which Git calls 'good' and 'bad'::
-Often this is caused by udev/systemd. Check that first before blaming it
-on the kernel.
+ git bisect start
+ git bisect good v6.0
+ git bisect bad v6.1
-Finding patch that caused a bug
-===============================
+ Instead of Git tags like 'v6.0' and 'v6.1' you can specify commit-ids, too.
-Using the provided tools with ``git`` makes finding bugs easy provided the bug
-is reproducible.
+1. Copy your prepared .config into the build directory and adjust it to the
+ needs of the codebase Git checked out for testing::
-Steps to do it:
+ cp ~/prepared_kernel_.config .config
+ make olddefconfig
-- build the Kernel from its git source
-- start bisect with [#f1]_::
-
- $ git bisect start
-
-- mark the broken changeset with::
-
- $ git bisect bad [commit]
-
-- mark a changeset where the code is known to work with::
-
- $ git bisect good [commit]
-
-- rebuild the Kernel and test
-- interact with git bisect by using either::
-
- $ git bisect good
-
- or::
-
- $ git bisect bad
-
- depending if the bug happened on the changeset you're testing
-- After some interactions, git bisect will give you the changeset that
- likely caused the bug.
-
-- For example, if you know that the current version is bad, and version
- 4.8 is good, you could do::
-
- $ git bisect start
- $ git bisect bad # Current version is bad
- $ git bisect good v4.8
-
-
-.. [#f1] You can, optionally, provide both good and bad arguments at git
- start with ``git bisect start [BAD] [GOOD]``
-
-For further references, please read:
-
-- The man page for ``git-bisect``
-- `Fighting regressions with git bisect <https://www.kernel.org/pub/software/scm/git/docs/git-bisect-lk2009.html>`_
-- `Fully automated bisecting with "git bisect run" <https://lwn.net/Articles/317154>`_
-- `Using Git bisect to figure out when brokenness was introduced <http://webchick.net/node/99>`_
+2. Now build, install, and boot a kernel. This might fail for unrelated reasons,
+ for example, when a compile error happens at the current stage of the
+ bisection a later change resolves. In such cases run ``git bisect skip`` and
+ go back to step 1.
+
+3. Check if the functionality that regressed works in the kernel you just built.
+
+ If it works, execute::
+
+ git bisect good
+
+ If it is broken, run::
+
+ git bisect bad
+
+ Note, getting this wrong just once will send the rest of the bisection
+ totally off course. To prevent having to start anew later you thus want to
+ ensure what you tell Git is correct; it is thus often wise to spend a few
+ minutes more on testing in case your reproducer is unreliable.
+
+ After issuing one of these two commands, Git will usually check out another
+ bisection point and print something like 'Bisecting: 675 revisions left to
+ test after this (roughly 10 steps)'. In that case go back to step 1.
+
+ If Git instead prints something like 'cafecaca0c0dacafecaca0c0dacafecaca0c0da
+ is the first bad commit', then you have finished the bisection. In that case
+ move to the next point below. Note, right after displaying that line Git will
+ show some details about the culprit including its patch description; this can
+ easily fill your terminal, so you might need to scroll up to see the message
+ mentioning the culprit's commit-id.
+
+ In case you missed Git's output, you can always run ``git bisect log`` to
+ print the status: it will show how many steps remain or mention the result of
+ the bisection.
+
+* Recommended complementary task: put the bisection log and the current .config
+ file aside for the bug report; furthermore tell Git to reset the sources to
+ the state before the bisection::
+
+ git bisect log > ~/bisection-log
+ cp .config ~/bisection-config-culprit
+ git bisect reset
+
+* Recommended optional task: try reverting the culprit on top of the latest
+ codebase and check if that fixes your bug; if that is the case, it validates
+ the bisection and enables developers to resolve the regression through a
+ revert.
+
+ To try this, update your clone and check out latest mainline. Then tell Git
+ to revert the change by specifying its commit-id::
+
+ git revert --no-edit cafec0cacaca0
+
+ Git might reject this, for example when the bisection landed on a merge
+ commit. In that case, abandon the attempt. Do the same, if Git fails to revert
+ the culprit on its own because later changes depend on it -- at least unless
+ you bisected a stable or longterm kernel series, in which case you want to
+ check out its latest codebase and try a revert there.
+
+ If a revert succeeds, build and test another kernel to check if reverting
+ resolved your regression.
+
+With that the process is complete. Now report the regression as described by
+Documentation/admin-guide/reporting-issues.rst.
+
+Bisecting linux-next
+--------------------
+
+If you face a problem only happening in linux-next, bisect between the
+linux-next branches 'stable' and 'master'. The following commands will start
+the process for a linux-next tree you added as a remote called 'next'::
+
+ git bisect start
+ git bisect good next/stable
+ git bisect bad next/master
+
+The 'stable' branch refers to the state of linux-mainline that the current
+linux-next release (found in the 'master' branch) is based on -- the former
+thus should be free of any problems that show up in -next, but not in Linus'
+tree.
+
+This will bisect across a wide range of changes, some of which you might have
+used in earlier linux-next releases without problems. Sadly there is no simple
+way to avoid checking them: bisecting from one linux-next release to a later
+one (say between 'next-20241020' and 'next-20241021') is impossible, as they
+share no common history.
+
+Additional reading material
+---------------------------
+
+* The `man page for 'git bisect' <https://git-scm.com/docs/git-bisect>`_ and
+ `fighting regressions with 'git bisect' <https://git-scm.com/docs/git-bisect-lk2009.html>`_
+ in the Git documentation.
+* `Working with git bisect <https://nathanchance.dev/posts/working-with-git-bisect/>`_
+ from kernel developer Nathan Chancellor.
+* `Using Git bisect to figure out when brokenness was introduced <http://webchick.net/node/99>`_.
+* `Fully automated bisecting with 'git bisect run' <https://lwn.net/Articles/317154>`_.
+
+..
+ end-of-content
+..
+ This document is maintained by Thorsten Leemhuis <linux@leemhuis.info>. If
+ you spot a typo or small mistake, feel free to let him know directly and
+ he'll fix it. You are free to do the same in a mostly informal way if you
+ want to contribute changes to the text -- but for copyright reasons please CC
+ linux-doc@vger.kernel.org and 'sign-off' your contribution as
+ Documentation/process/submitting-patches.rst explains in the section 'Sign
+ your work - the Developer's Certificate of Origin'.
+..
+ This text is available under GPL-2.0+ or CC-BY-4.0, as stated at the top
+ of the file. If you want to distribute this text under CC-BY-4.0 only,
+ please use 'The Linux kernel development community' for author attribution
+ and link this as source:
+ https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/plain/Documentation/admin-guide/bug-bisect.rst
+
+..
+ Note: Only the content of this RST file as found in the Linux kernel sources
+ is available under CC-BY-4.0, as versions of this text that were processed
+ (for example by the kernel's build system) might contain content taken from
+ files which use a more restrictive license.
diff --git a/Documentation/admin-guide/bug-hunting.rst b/Documentation/admin-guide/bug-hunting.rst
index 95299b08c405..7da0504388ec 100644
--- a/Documentation/admin-guide/bug-hunting.rst
+++ b/Documentation/admin-guide/bug-hunting.rst
@@ -196,7 +196,7 @@ will see the assembler code for the routine shown, but if your kernel has
debug symbols the C code will also be available. (Debug symbols can be enabled
in the kernel hacking menu of the menu configuration.) For example::
- $ objdump -r -S -l --disassemble net/dccp/ipv4.o
+ $ objdump -r -S -l --disassemble net/ipv4/tcp.o
.. note::
@@ -244,15 +244,15 @@ Reporting the bug
Once you find where the bug happened, by inspecting its location,
you could either try to fix it yourself or report it upstream.
-In order to report it upstream, you should identify the mailing list
-used for the development of the affected code. This can be done by using
-the ``get_maintainer.pl`` script.
+In order to report it upstream, you should identify the bug tracker, if any, or
+mailing list used for the development of the affected code. This can be done by
+using the ``get_maintainer.pl`` script.
For example, if you find a bug at the gspca's sonixj.c file, you can get
its maintainers with::
- $ ./scripts/get_maintainer.pl -f drivers/media/usb/gspca/sonixj.c
- Hans Verkuil <hverkuil@xs4all.nl> (odd fixer:GSPCA USB WEBCAM DRIVER,commit_signer:1/1=100%)
+ $ ./scripts/get_maintainer.pl --bug -f drivers/media/usb/gspca/sonixj.c
+ Hans Verkuil <hverkuil@kernel.org> (odd fixer:GSPCA USB WEBCAM DRIVER,commit_signer:1/1=100%)
Mauro Carvalho Chehab <mchehab@kernel.org> (maintainer:MEDIA INPUT INFRASTRUCTURE (V4L/DVB),commit_signer:1/1=100%)
Tejun Heo <tj@kernel.org> (commit_signer:1/1=100%)
Bhaktipriya Shridhar <bhaktipriya96@gmail.com> (commit_signer:1/1=100%,authored:1/1=100%,added_lines:4/4=100%,removed_lines:9/9=100%)
@@ -267,11 +267,12 @@ Please notice that it will point to:
- The driver maintainer (Hans Verkuil);
- The subsystem maintainer (Mauro Carvalho Chehab);
- The driver and/or subsystem mailing list (linux-media@vger.kernel.org);
-- the Linux Kernel mailing list (linux-kernel@vger.kernel.org).
+- The Linux Kernel mailing list (linux-kernel@vger.kernel.org);
+- The bug reporting URIs for the driver/subsystem (none in the above example).
-Usually, the fastest way to have your bug fixed is to report it to mailing
-list used for the development of the code (linux-media ML) copying the
-driver maintainer (Hans).
+If the listing contains bug reporting URIs at the end, please prefer them over
+email. Otherwise, please report bugs to the mailing list used for the
+development of the code (linux-media ML) copying the driver maintainer (Hans).
If you are totally stumped as to whom to send the report, and
``get_maintainer.pl`` didn't provide you anything useful, send it to
@@ -367,12 +368,3 @@ processed by ``klogd``::
Aug 29 09:51:01 blizard kernel: Call Trace: [oops:_oops_ioctl+48/80] [_sys_ioctl+254/272] [_system_call+82/128]
Aug 29 09:51:01 blizard kernel: Code: c7 00 05 00 00 00 eb 08 90 90 90 90 90 90 90 90 89 ec 5d c3
----------------------------------------------------------------------------
-
-::
-
- Dr. G.W. Wettstein Oncology Research Div. Computing Facility
- Roger Maris Cancer Center INTERNET: greg@wind.rmcc.com
- 820 4th St. N.
- Fargo, ND 58122
- Phone: 701-234-7556
diff --git a/Documentation/admin-guide/cgroup-v1/cgroups.rst b/Documentation/admin-guide/cgroup-v1/cgroups.rst
index 9343148ee993..463f98453323 100644
--- a/Documentation/admin-guide/cgroup-v1/cgroups.rst
+++ b/Documentation/admin-guide/cgroup-v1/cgroups.rst
@@ -13,7 +13,7 @@ Portions Copyright (c) 2004-2006 Silicon Graphics, Inc.
Modified by Paul Jackson <pj@sgi.com>
-Modified by Christoph Lameter <cl@linux.com>
+Modified by Christoph Lameter <cl@gentwo.org>
.. CONTENTS:
@@ -570,7 +570,7 @@ visible to cgroup_for_each_child/descendant_*() iterators. The
subsystem may choose to fail creation by returning -errno. This
callback can be used to implement reliable state sharing and
propagation along the hierarchy. See the comment on
-cgroup_for_each_descendant_pre() for details.
+cgroup_for_each_live_descendant_pre() for details.
``void css_offline(struct cgroup *cgrp);``
(cgroup_mutex held by caller)
diff --git a/Documentation/admin-guide/cgroup-v1/cpusets.rst b/Documentation/admin-guide/cgroup-v1/cpusets.rst
index ae646d621a8a..c7909e5ac136 100644
--- a/Documentation/admin-guide/cgroup-v1/cpusets.rst
+++ b/Documentation/admin-guide/cgroup-v1/cpusets.rst
@@ -10,7 +10,7 @@ Written by Simon.Derr@bull.net
- Portions Copyright (c) 2004-2006 Silicon Graphics, Inc.
- Modified by Paul Jackson <pj@sgi.com>
-- Modified by Christoph Lameter <cl@linux.com>
+- Modified by Christoph Lameter <cl@gentwo.org>
- Modified by Paul Menage <menage@google.com>
- Modified by Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
@@ -179,7 +179,7 @@ files describing that cpuset:
- cpuset.mem_hardwall flag: is memory allocation hardwalled
- cpuset.memory_pressure: measure of how much paging pressure in cpuset
- cpuset.memory_spread_page flag: if set, spread page cache evenly on allowed nodes
- - cpuset.memory_spread_slab flag: if set, spread slab cache evenly on allowed nodes
+ - cpuset.memory_spread_slab flag: OBSOLETE. Doesn't have any function.
- cpuset.sched_load_balance flag: if set, load balance within CPUs on that cpuset
- cpuset.sched_relax_domain_level: the searching range when migrating tasks
@@ -568,7 +568,7 @@ on the next tick. For some applications in special situation, waiting
The 'cpuset.sched_relax_domain_level' file allows you to request changing
this searching range as you like. This file takes int value which
-indicates size of searching range in levels ideally as follows,
+indicates size of searching range in levels approximately as follows,
otherwise initial value -1 that indicates the cpuset has no request.
====== ===========================================================
@@ -581,6 +581,11 @@ otherwise initial value -1 that indicates the cpuset has no request.
5 search system wide [on NUMA system]
====== ===========================================================
+Not all levels can be present and values can change depending on the
+system architecture and kernel configuration. Check
+/sys/kernel/debug/sched/domains/cpu*/domain*/ for system-specific
+details.
+
The system default is architecture dependent. The system default
can be changed using the relax_domain_level= boot parameter.
diff --git a/Documentation/admin-guide/cgroup-v1/freezer-subsystem.rst b/Documentation/admin-guide/cgroup-v1/freezer-subsystem.rst
index 582d3427de3f..a964aff373b1 100644
--- a/Documentation/admin-guide/cgroup-v1/freezer-subsystem.rst
+++ b/Documentation/admin-guide/cgroup-v1/freezer-subsystem.rst
@@ -125,3 +125,7 @@ to unfreeze all tasks in the container::
This is the basic mechanism which should do the right thing for user space task
in a simple scenario.
+
+This freezer implementation is affected by shortcomings (see commit
+76f969e8948d8 ("cgroup: cgroup v2 freezer")) and cgroup v2 freezer is
+recommended.
diff --git a/Documentation/admin-guide/cgroup-v1/hugetlb.rst b/Documentation/admin-guide/cgroup-v1/hugetlb.rst
index 0fa724d82abb..493a8e386700 100644
--- a/Documentation/admin-guide/cgroup-v1/hugetlb.rst
+++ b/Documentation/admin-guide/cgroup-v1/hugetlb.rst
@@ -65,10 +65,12 @@ files include::
1. Page fault accounting
-hugetlb.<hugepagesize>.limit_in_bytes
-hugetlb.<hugepagesize>.max_usage_in_bytes
-hugetlb.<hugepagesize>.usage_in_bytes
-hugetlb.<hugepagesize>.failcnt
+::
+
+ hugetlb.<hugepagesize>.limit_in_bytes
+ hugetlb.<hugepagesize>.max_usage_in_bytes
+ hugetlb.<hugepagesize>.usage_in_bytes
+ hugetlb.<hugepagesize>.failcnt
The HugeTLB controller allows users to limit the HugeTLB usage (page fault) per
control group and enforces the limit during page fault. Since HugeTLB
@@ -82,10 +84,12 @@ getting SIGBUS.
2. Reservation accounting
-hugetlb.<hugepagesize>.rsvd.limit_in_bytes
-hugetlb.<hugepagesize>.rsvd.max_usage_in_bytes
-hugetlb.<hugepagesize>.rsvd.usage_in_bytes
-hugetlb.<hugepagesize>.rsvd.failcnt
+::
+
+ hugetlb.<hugepagesize>.rsvd.limit_in_bytes
+ hugetlb.<hugepagesize>.rsvd.max_usage_in_bytes
+ hugetlb.<hugepagesize>.rsvd.usage_in_bytes
+ hugetlb.<hugepagesize>.rsvd.failcnt
The HugeTLB controller allows to limit the HugeTLB reservations per control
group and enforces the controller limit at reservation time and at the fault of
diff --git a/Documentation/admin-guide/cgroup-v1/memcg_test.rst b/Documentation/admin-guide/cgroup-v1/memcg_test.rst
index a402359abb99..9f8e27355cba 100644
--- a/Documentation/admin-guide/cgroup-v1/memcg_test.rst
+++ b/Documentation/admin-guide/cgroup-v1/memcg_test.rst
@@ -62,7 +62,7 @@ Please note that implementation details can be changed.
At cancel(), simply usage -= PAGE_SIZE.
-Under below explanation, we assume CONFIG_MEM_RES_CTRL_SWAP=y.
+Under below explanation, we assume CONFIG_SWAP=y.
4. Anonymous
============
@@ -102,7 +102,7 @@ Under below explanation, we assume CONFIG_MEM_RES_CTRL_SWAP=y.
The logic is very clear. (About migration, see below)
Note:
- __remove_from_page_cache() is called by remove_from_page_cache()
+ __filemap_remove_folio() is called by filemap_remove_folio()
and __remove_mapping().
6. Shmem(tmpfs) Page Cache
diff --git a/Documentation/admin-guide/cgroup-v1/memory.rst b/Documentation/admin-guide/cgroup-v1/memory.rst
index 47d1d7d932a8..d6b1db8cc7eb 100644
--- a/Documentation/admin-guide/cgroup-v1/memory.rst
+++ b/Documentation/admin-guide/cgroup-v1/memory.rst
@@ -78,32 +78,50 @@ Brief summary of control files.
memory.memsw.max_usage_in_bytes show max memory+Swap usage recorded
memory.soft_limit_in_bytes set/show soft limit of memory usage
This knob is not available on CONFIG_PREEMPT_RT systems.
+ This knob is deprecated and shouldn't be
+ used.
memory.stat show various statistics
memory.use_hierarchy set/show hierarchical account enabled
This knob is deprecated and shouldn't be
used.
memory.force_empty trigger forced page reclaim
memory.pressure_level set memory pressure notifications
+ This knob is deprecated and shouldn't be
+ used.
memory.swappiness set/show swappiness parameter of vmscan
(See sysctl's vm.swappiness)
- memory.move_charge_at_immigrate set/show controls of moving charges
+ Per memcg knob does not exist in cgroup v2.
+ memory.move_charge_at_immigrate This knob is deprecated.
+ memory.oom_control set/show oom controls.
This knob is deprecated and shouldn't be
used.
- memory.oom_control set/show oom controls.
memory.numa_stat show the number of memory usage per numa
node
- memory.kmem.limit_in_bytes This knob is deprecated and writing to
- it will return -ENOTSUPP.
+ memory.kmem.limit_in_bytes Deprecated knob to set and read the kernel
+ memory hard limit. Kernel hard limit is not
+ supported since 5.16. Writing any value to
+ do file will not have any effect same as if
+ nokmem kernel parameter was specified.
+ Kernel memory is still charged and reported
+ by memory.kmem.usage_in_bytes.
memory.kmem.usage_in_bytes show current kernel memory allocation
memory.kmem.failcnt show the number of kernel memory usage
hits limits
memory.kmem.max_usage_in_bytes show max kernel memory usage recorded
memory.kmem.tcp.limit_in_bytes set/show hard limit for tcp buf memory
+ This knob is deprecated and shouldn't be
+ used.
memory.kmem.tcp.usage_in_bytes show current tcp buf memory allocation
+ This knob is deprecated and shouldn't be
+ used.
memory.kmem.tcp.failcnt show the number of tcp buf memory usage
hits limits
+ This knob is deprecated and shouldn't be
+ used.
memory.kmem.tcp.max_usage_in_bytes show max tcp buf memory usage recorded
+ This knob is deprecated and shouldn't be
+ used.
==================================== ==========================================
1. History
@@ -197,11 +215,11 @@ are not accounted. We just account pages under usual VM management.
RSS pages are accounted at page_fault unless they've already been accounted
for earlier. A file page will be accounted for as Page Cache when it's
-inserted into inode (radix-tree). While it's mapped into the page tables of
+inserted into inode (xarray). While it's mapped into the page tables of
processes, duplicate accounting is carefully avoided.
An RSS page is unaccounted when it's fully unmapped. A PageCache page is
-unaccounted when it's removed from radix-tree. Even if RSS pages are fully
+unaccounted when it's removed from xarray. Even if RSS pages are fully
unmapped (by kswapd), they may exist as SwapCache in the system until they
are really freed. Such SwapCaches are also accounted.
A swapped-in page is accounted after adding into swapcache.
@@ -224,10 +242,6 @@ behind this approach is that a cgroup that aggressively uses a shared
page will eventually get charged for it (once it is uncharged from
the cgroup that brought it in -- this will happen on memory pressure).
-But see :ref:`section 8.2 <cgroup-v1-memory-movable-charges>` when moving a
-task to another cgroup, its pages may be recharged to the new cgroup, if
-move_charge_at_immigrate has been chosen.
-
2.4 Swap Extension
--------------------------------------
@@ -295,14 +309,14 @@ When oom event notifier is registered, event will be delivered.
Lock order is as follows::
- Page lock (PG_locked bit of page->flags)
+ folio_lock
mm->page_table_lock or split pte_lock
- lock_page_memcg (memcg->move_lock)
+ folio_memcg_lock (memcg->move_lock)
mapping->i_pages lock
lruvec->lru_lock.
Per-node-per-memcgroup LRU (cgroup's private LRU) is guarded by
-lruvec->lru_lock; PG_lru bit of page->flags is cleared before
+lruvec->lru_lock; the folio LRU flag is cleared before
isolating a page from its LRU under lruvec->lru_lock.
.. _cgroup-v1-memory-kernel-extension:
@@ -546,6 +560,7 @@ memory.stat file includes following statistics:
event happens each time a page is unaccounted from the
cgroup.
swap # of bytes of swap usage
+ swapcached # of bytes of swap cached in memory
dirty # of bytes that are waiting to get written back to the disk.
writeback # of bytes of file/anon cache that are queued for syncing to
disk.
@@ -595,6 +610,10 @@ memory.stat file includes following statistics:
'rss + mapped_file" will give you resident set size of cgroup.
+ Note that some kernel configurations might account complete larger
+ allocations (e.g., THP) towards 'rss' and 'mapped_file', even if
+ only some, but not all that memory is mapped.
+
(Note: file and shmem may be shared among other cgroups. In that case,
mapped_file is accounted only when the memory cgroup is owner of page
cache.)
@@ -687,8 +706,10 @@ For compatibility reasons writing 1 to memory.use_hierarchy will always pass::
# echo 1 > memory.use_hierarchy
-7. Soft limits
-==============
+7. Soft limits (DEPRECATED)
+===========================
+
+THIS IS DEPRECATED!
Soft limits allow for greater sharing of memory. The idea behind soft limits
is to allow control groups to use as much of the memory as needed, provided
@@ -734,78 +755,8 @@ If we want to change this to 1G, we can at any time use::
THIS IS DEPRECATED!
-It's expensive and unreliable! It's better practice to launch workload
-tasks directly from inside their target cgroup. Use dedicated workload
-cgroups to allow fine-grained policy adjustments without having to
-move physical pages between control domains.
-
-Users can move charges associated with a task along with task migration, that
-is, uncharge task's pages from the old cgroup and charge them to the new cgroup.
-This feature is not supported in !CONFIG_MMU environments because of lack of
-page tables.
-
-8.1 Interface
--------------
-
-This feature is disabled by default. It can be enabled (and disabled again) by
-writing to memory.move_charge_at_immigrate of the destination cgroup.
-
-If you want to enable it::
-
- # echo (some positive value) > memory.move_charge_at_immigrate
-
-.. note::
- Each bits of move_charge_at_immigrate has its own meaning about what type
- of charges should be moved. See :ref:`section 8.2
- <cgroup-v1-memory-movable-charges>` for details.
-
-.. note::
- Charges are moved only when you move mm->owner, in other words,
- a leader of a thread group.
-
-.. note::
- If we cannot find enough space for the task in the destination cgroup, we
- try to make space by reclaiming memory. Task migration may fail if we
- cannot make enough space.
-
-.. note::
- It can take several seconds if you move charges much.
-
-And if you want disable it again::
-
- # echo 0 > memory.move_charge_at_immigrate
-
-.. _cgroup-v1-memory-movable-charges:
-
-8.2 Type of charges which can be moved
---------------------------------------
-
-Each bit in move_charge_at_immigrate has its own meaning about what type of
-charges should be moved. But in any case, it must be noted that an account of
-a page or a swap can be moved only when it is charged to the task's current
-(old) memory cgroup.
-
-+---+--------------------------------------------------------------------------+
-|bit| what type of charges would be moved ? |
-+===+==========================================================================+
-| 0 | A charge of an anonymous page (or swap of it) used by the target task. |
-| | You must enable Swap Extension (see 2.4) to enable move of swap charges. |
-+---+--------------------------------------------------------------------------+
-| 1 | A charge of file pages (normal file, tmpfs file (e.g. ipc shared memory) |
-| | and swaps of tmpfs file) mmapped by the target task. Unlike the case of |
-| | anonymous pages, file pages (and swaps) in the range mmapped by the task |
-| | will be moved even if the task hasn't done page fault, i.e. they might |
-| | not be the task's "RSS", but other task's "RSS" that maps the same file. |
-| | And mapcount of the page is ignored (the page can be moved even if |
-| | page_mapcount(page) > 1). You must enable Swap Extension (see 2.4) to |
-| | enable move of swap charges. |
-+---+--------------------------------------------------------------------------+
-
-8.3 TODO
---------
-
-- All of moving charge operations are done under cgroup_mutex. It's not good
- behavior to hold the mutex too long, so we may need some trick.
+Reading memory.move_charge_at_immigrate will always return 0 and writing
+to it will always return -EINVAL.
9. Memory thresholds
====================
@@ -828,8 +779,10 @@ It's applicable for root and non-root cgroup.
.. _cgroup-v1-memory-oom-control:
-10. OOM Control
-===============
+10. OOM Control (DEPRECATED)
+============================
+
+THIS IS DEPRECATED!
memory.oom_control file is for OOM notification and other controls.
@@ -876,8 +829,10 @@ At reading, current status of OOM is shown.
The number of processes belonging to this cgroup killed by any
kind of OOM killer.
-11. Memory Pressure
-===================
+11. Memory Pressure (DEPRECATED)
+================================
+
+THIS IS DEPRECATED!
The pressure level notifications can be used to monitor the memory
allocation cost; based on the pressure, applications can implement
@@ -909,7 +864,7 @@ experiences some pressure. In this situation, only group C will receive the
notification, i.e. groups A and B will not receive it. This is done to avoid
excessive "broadcasting" of messages, which disturbs the system and which is
especially bad if we are low on memory or thrashing. Group B, will receive
-notification only if there are no event listers for group C.
+notification only if there are no event listeners for group C.
There are three optional modes that specify different propagation behavior:
diff --git a/Documentation/admin-guide/cgroup-v1/pids.rst b/Documentation/admin-guide/cgroup-v1/pids.rst
index 6acebd9e72c8..0f9f9a7b1f6c 100644
--- a/Documentation/admin-guide/cgroup-v1/pids.rst
+++ b/Documentation/admin-guide/cgroup-v1/pids.rst
@@ -36,7 +36,8 @@ superset of parent/child/pids.current.
The pids.events file contains event counters:
- - max: Number of times fork failed because limit was hit.
+ - max: Number of times fork failed in the cgroup because limit was hit in
+ self or ancestors.
Example
-------
diff --git a/Documentation/admin-guide/cgroup-v2.rst b/Documentation/admin-guide/cgroup-v2.rst
index f67c0829350b..7f5b59d95fce 100644
--- a/Documentation/admin-guide/cgroup-v2.rst
+++ b/Documentation/admin-guide/cgroup-v2.rst
@@ -15,6 +15,9 @@ v1 is available under :ref:`Documentation/admin-guide/cgroup-v1/index.rst <cgrou
.. CONTENTS
+ [Whenever any new section is added to this document, please also add
+ an entry here.]
+
1. Introduction
1-1. Terminology
1-2. What is cgroup?
@@ -25,9 +28,10 @@ v1 is available under :ref:`Documentation/admin-guide/cgroup-v1/index.rst <cgrou
2-2-2. Threads
2-3. [Un]populated Notification
2-4. Controlling Controllers
- 2-4-1. Enabling and Disabling
- 2-4-2. Top-down Constraint
- 2-4-3. No Internal Process Constraint
+ 2-4-1. Availability
+ 2-4-2. Enabling and Disabling
+ 2-4-3. Top-down Constraint
+ 2-4-4. No Internal Process Constraint
2-5. Delegation
2-5-1. Model of Delegation
2-5-2. Delegation Containment
@@ -49,7 +53,8 @@ v1 is available under :ref:`Documentation/admin-guide/cgroup-v1/index.rst <cgrou
5-2. Memory
5-2-1. Memory Interface Files
5-2-2. Usage Guidelines
- 5-2-3. Memory Ownership
+ 5-2-3. Reclaim Protection
+ 5-2-4. Memory Ownership
5-3. IO
5-3-1. IO Interface Files
5-3-2. Writeback
@@ -61,16 +66,18 @@ v1 is available under :ref:`Documentation/admin-guide/cgroup-v1/index.rst <cgrou
5-4-1. PID Interface Files
5-5. Cpuset
5.5-1. Cpuset Interface Files
- 5-6. Device
+ 5-6. Device controller
5-7. RDMA
5-7-1. RDMA Interface Files
- 5-8. HugeTLB
- 5.8-1. HugeTLB Interface Files
- 5-9. Misc
- 5.9-1 Miscellaneous cgroup Interface Files
- 5.9-2 Migration and Ownership
- 5-10. Others
- 5-10-1. perf_event
+ 5-8. DMEM
+ 5-8-1. DMEM Interface Files
+ 5-9. HugeTLB
+ 5.9-1. HugeTLB Interface Files
+ 5-10. Misc
+ 5.10-1 Misc Interface Files
+ 5.10-2 Migration and Ownership
+ 5-11. Others
+ 5-11-1. perf_event
5-N. Non-normative information
5-N-1. CPU controller root cgroup process behaviour
5-N-2. IO controller root cgroup process behaviour
@@ -210,6 +217,42 @@ cgroup v2 currently supports the following mount options.
relying on the original semantics (e.g. specifying bogusly
high 'bypass' protection values at higher tree levels).
+ memory_hugetlb_accounting
+ Count HugeTLB memory usage towards the cgroup's overall
+ memory usage for the memory controller (for the purpose of
+ statistics reporting and memory protetion). This is a new
+ behavior that could regress existing setups, so it must be
+ explicitly opted in with this mount option.
+
+ A few caveats to keep in mind:
+
+ * There is no HugeTLB pool management involved in the memory
+ controller. The pre-allocated pool does not belong to anyone.
+ Specifically, when a new HugeTLB folio is allocated to
+ the pool, it is not accounted for from the perspective of the
+ memory controller. It is only charged to a cgroup when it is
+ actually used (for e.g at page fault time). Host memory
+ overcommit management has to consider this when configuring
+ hard limits. In general, HugeTLB pool management should be
+ done via other mechanisms (such as the HugeTLB controller).
+ * Failure to charge a HugeTLB folio to the memory controller
+ results in SIGBUS. This could happen even if the HugeTLB pool
+ still has pages available (but the cgroup limit is hit and
+ reclaim attempt fails).
+ * Charging HugeTLB memory towards the memory controller affects
+ memory protection and reclaim dynamics. Any userspace tuning
+ (of low, min limits for e.g) needs to take this into account.
+ * HugeTLB pages utilized while this option is not selected
+ will not be tracked by the memory controller (even if cgroup
+ v2 is remounted later on).
+
+ pids_localevents
+ The option restores v1-like behavior of pids.events:max, that is only
+ local (inside cgroup proper) fork failures are counted. Without this
+ option pids.events.max represents any pids.max enforcemnt across
+ cgroup's subtree.
+
+
Organizing Processes and Threads
--------------------------------
@@ -364,6 +407,13 @@ constraint, a threaded controller must be able to handle competition
between threads in a non-leaf cgroup and its child cgroups. Each
threaded controller defines how such competitions are handled.
+Currently, the following controllers are threaded and can be enabled
+in a threaded cgroup::
+
+- cpu
+- cpuset
+- perf_event
+- pids
[Un]populated Notification
--------------------------
@@ -391,6 +441,15 @@ both cgroups.
Controlling Controllers
-----------------------
+Availability
+~~~~~~~~~~~~
+
+A controller is available in a cgroup when it is supported by the kernel (i.e.,
+compiled in, not disabled and not attached to a v1 hierarchy) and listed in the
+"cgroup.controllers" file. Availability means the controller's interface files
+are exposed in the cgroup’s directory, allowing the distribution of the target
+resource to be observed or controlled within that cgroup.
+
Enabling and Disabling
~~~~~~~~~~~~~~~~~~~~~~
@@ -490,10 +549,12 @@ cgroup namespace on namespace creation.
Because the resource control interface files in a given directory
control the distribution of the parent's resources, the delegatee
shouldn't be allowed to write to them. For the first method, this is
-achieved by not granting access to these files. For the second, the
-kernel rejects writes to all files other than "cgroup.procs" and
-"cgroup.subtree_control" on a namespace root from inside the
-namespace.
+achieved by not granting access to these files. For the second, files
+outside the namespace should be hidden from the delegatee by the means
+of at least mount namespacing, and the kernel rejects writes to all
+files on a namespace root from inside the cgroup namespace, except for
+those files listed in "/sys/kernel/cgroup/delegate" (including
+"cgroup.procs", "cgroup.threads", "cgroup.subtree_control", etc.).
The end results are equivalent for both delegation types. Once
delegated, the user can build sub-hierarchy under the directory,
@@ -938,6 +999,32 @@ All cgroup core files are prefixed with "cgroup."
A dying cgroup can consume system resources not exceeding
limits, which were active at the moment of cgroup deletion.
+ nr_subsys_<cgroup_subsys>
+ Total number of live cgroup subsystems (e.g memory
+ cgroup) at and beneath the current cgroup.
+
+ nr_dying_subsys_<cgroup_subsys>
+ Total number of dying cgroup subsystems (e.g. memory
+ cgroup) at and beneath the current cgroup.
+
+ cgroup.stat.local
+ A read-only flat-keyed file which exists in non-root cgroups.
+ The following entry is defined:
+
+ frozen_usec
+ Cumulative time that this cgroup has spent between freezing and
+ thawing, regardless of whether by self or ancestor groups.
+ NB: (not) reaching "frozen" state is not accounted here.
+
+ Using the following ASCII representation of a cgroup's freezer
+ state, ::
+
+ 1 _____
+ frozen 0 __/ \__
+ ab cd
+
+ the duration being measured is the span between a and c.
+
cgroup.freeze
A read-write single value file which exists on non-root cgroups.
Allowed values are "0" and "1". The default is "0".
@@ -1022,30 +1109,53 @@ cpufreq governor about the minimum desired frequency which should always be
provided by a CPU, as well as the maximum desired frequency, which should not
be exceeded by a CPU.
-WARNING: cgroup2 doesn't yet support control of realtime processes and
-the cpu controller can only be enabled when all RT processes are in
-the root cgroup. Be aware that system management software may already
-have placed RT processes into nonroot cgroups during the system boot
-process, and these processes may need to be moved to the root cgroup
-before the cpu controller can be enabled.
+WARNING: cgroup2 cpu controller doesn't yet support the (bandwidth) control of
+realtime processes. For a kernel built with the CONFIG_RT_GROUP_SCHED option
+enabled for group scheduling of realtime processes, the cpu controller can only
+be enabled when all RT processes are in the root cgroup. Be aware that system
+management software may already have placed RT processes into non-root cgroups
+during the system boot process, and these processes may need to be moved to the
+root cgroup before the cpu controller can be enabled with a
+CONFIG_RT_GROUP_SCHED enabled kernel.
+
+With CONFIG_RT_GROUP_SCHED disabled, this limitation does not apply and some of
+the interface files either affect realtime processes or account for them. See
+the following section for details. Only the cpu controller is affected by
+CONFIG_RT_GROUP_SCHED. Other controllers can be used for the resource control of
+realtime processes irrespective of CONFIG_RT_GROUP_SCHED.
CPU Interface Files
~~~~~~~~~~~~~~~~~~~
-All time durations are in microseconds.
+The interaction of a process with the cpu controller depends on its scheduling
+policy and the underlying scheduler. From the point of view of the cpu controller,
+processes can be categorized as follows:
+
+* Processes under the fair-class scheduler
+* Processes under a BPF scheduler with the ``cgroup_set_weight`` callback
+* Everything else: ``SCHED_{FIFO,RR,DEADLINE}`` and processes under a BPF scheduler
+ without the ``cgroup_set_weight`` callback
+
+For details on when a process is under the fair-class scheduler or a BPF scheduler,
+check out :ref:`Documentation/scheduler/sched-ext.rst <sched-ext>`.
+
+For each of the following interface files, the above categories
+will be referred to. All time durations are in microseconds.
cpu.stat
A read-only flat-keyed file.
This file exists whether the controller is enabled or not.
- It always reports the following three stats:
+ It always reports the following three stats, which account for all the
+ processes in the cgroup:
- usage_usec
- user_usec
- system_usec
- and the following three when the controller is enabled:
+ and the following five when the controller is enabled, which account for
+ only the processes under the fair-class scheduler:
- nr_periods
- nr_throttled
@@ -1057,7 +1167,15 @@ All time durations are in microseconds.
A read-write single value file which exists on non-root
cgroups. The default is "100".
- The weight in the range [1, 10000].
+ For non idle groups (cpu.idle = 0), the weight is in the
+ range [1, 10000].
+
+ If the cgroup has been configured to be SCHED_IDLE (cpu.idle = 1),
+ then the weight will show as a 0.
+
+ This file affects only processes under the fair-class scheduler and a BPF
+ scheduler with the ``cgroup_set_weight`` callback depending on what the
+ callback actually does.
cpu.weight.nice
A read-write single value file which exists on non-root
@@ -1071,6 +1189,10 @@ All time durations are in microseconds.
granularity is coarser for the nice values, the read value is
the closest approximation of the current weight.
+ This file affects only processes under the fair-class scheduler and a BPF
+ scheduler with the ``cgroup_set_weight`` callback depending on what the
+ callback actually does.
+
cpu.max
A read-write two value file which exists on non-root cgroups.
The default is "max 100000".
@@ -1083,45 +1205,67 @@ All time durations are in microseconds.
$PERIOD duration. "max" for $MAX indicates no limit. If only
one number is written, $MAX is updated.
+ This file affects only processes under the fair-class scheduler.
+
cpu.max.burst
A read-write single value file which exists on non-root
cgroups. The default is "0".
The burst in the range [0, $MAX].
+ This file affects only processes under the fair-class scheduler.
+
cpu.pressure
A read-write nested-keyed file.
Shows pressure stall information for CPU. See
:ref:`Documentation/accounting/psi.rst <psi>` for details.
+ This file accounts for all the processes in the cgroup.
+
cpu.uclamp.min
- A read-write single value file which exists on non-root cgroups.
- The default is "0", i.e. no utilization boosting.
+ A read-write single value file which exists on non-root cgroups.
+ The default is "0", i.e. no utilization boosting.
- The requested minimum utilization (protection) as a percentage
- rational number, e.g. 12.34 for 12.34%.
+ The requested minimum utilization (protection) as a percentage
+ rational number, e.g. 12.34 for 12.34%.
- This interface allows reading and setting minimum utilization clamp
- values similar to the sched_setattr(2). This minimum utilization
- value is used to clamp the task specific minimum utilization clamp.
+ This interface allows reading and setting minimum utilization clamp
+ values similar to the sched_setattr(2). This minimum utilization
+ value is used to clamp the task specific minimum utilization clamp,
+ including those of realtime processes.
- The requested minimum utilization (protection) is always capped by
- the current value for the maximum utilization (limit), i.e.
- `cpu.uclamp.max`.
+ The requested minimum utilization (protection) is always capped by
+ the current value for the maximum utilization (limit), i.e.
+ `cpu.uclamp.max`.
+
+ This file affects all the processes in the cgroup.
cpu.uclamp.max
- A read-write single value file which exists on non-root cgroups.
- The default is "max". i.e. no utilization capping
+ A read-write single value file which exists on non-root cgroups.
+ The default is "max". i.e. no utilization capping
- The requested maximum utilization (limit) as a percentage rational
- number, e.g. 98.76 for 98.76%.
+ The requested maximum utilization (limit) as a percentage rational
+ number, e.g. 98.76 for 98.76%.
- This interface allows reading and setting maximum utilization clamp
- values similar to the sched_setattr(2). This maximum utilization
- value is used to clamp the task specific maximum utilization clamp.
+ This interface allows reading and setting maximum utilization clamp
+ values similar to the sched_setattr(2). This maximum utilization
+ value is used to clamp the task specific maximum utilization clamp,
+ including those of realtime processes.
+
+ This file affects all the processes in the cgroup.
+
+ cpu.idle
+ A read-write single value file which exists on non-root cgroups.
+ The default is 0.
+ This is the cgroup analog of the per-task SCHED_IDLE sched policy.
+ Setting this value to a 1 will make the scheduling policy of the
+ cgroup SCHED_IDLE. The threads inside the cgroup will retain their
+ own relative priorities, but the cgroup itself will be treated as
+ very low priority relative to its peers.
+ This file affects only processes under the fair-class scheduler.
Memory
------
@@ -1174,7 +1318,7 @@ PAGE_SIZE multiple when read back.
smaller overages.
Effective min boundary is limited by memory.min values of
- all ancestor cgroups. If there is memory.min overcommitment
+ ancestor cgroups. If there is memory.min overcommitment
(child cgroup or cgroups are requiring more protected memory
than parent will allow), then each child cgroup will get
the part of parent's protection proportional to its
@@ -1183,9 +1327,6 @@ PAGE_SIZE multiple when read back.
Putting more memory than generally available under this
protection is discouraged and may lead to constant OOMs.
- If a memory cgroup is not populated with processes,
- its memory.min is ignored.
-
memory.low
A read-write single value file which exists on non-root
cgroups. The default is "0".
@@ -1200,7 +1341,7 @@ PAGE_SIZE multiple when read back.
smaller overages.
Effective low boundary is limited by memory.low values of
- all ancestor cgroups. If there is memory.low overcommitment
+ ancestor cgroups. If there is memory.low overcommitment
(child cgroup or cgroups are requiring more protected memory
than parent will allow), then each child cgroup will get
the part of parent's protection proportional to its
@@ -1213,23 +1354,37 @@ PAGE_SIZE multiple when read back.
A read-write single value file which exists on non-root
cgroups. The default is "max".
- Memory usage throttle limit. This is the main mechanism to
- control memory usage of a cgroup. If a cgroup's usage goes
+ Memory usage throttle limit. If a cgroup's usage goes
over the high boundary, the processes of the cgroup are
throttled and put under heavy reclaim pressure.
Going over the high limit never invokes the OOM killer and
- under extreme conditions the limit may be breached.
+ under extreme conditions the limit may be breached. The high
+ limit should be used in scenarios where an external process
+ monitors the limited cgroup to alleviate heavy reclaim
+ pressure.
+
+ If memory.high is opened with O_NONBLOCK then the synchronous
+ reclaim is bypassed. This is useful for admin processes that
+ need to dynamically adjust the job's memory limits without
+ expending their own CPU resources on memory reclamation. The
+ job will trigger the reclaim and/or get throttled on its
+ next charge request.
+
+ Please note that with O_NONBLOCK, there is a chance that the
+ target memory cgroup may take indefinite amount of time to
+ reduce usage below the limit due to delayed charge request or
+ busy-hitting its memory to slow down reclaim.
memory.max
A read-write single value file which exists on non-root
cgroups. The default is "max".
- Memory usage hard limit. This is the final protection
- mechanism. If a cgroup's memory usage reaches this limit and
- can't be reduced, the OOM killer is invoked in the cgroup.
- Under certain circumstances, the usage may go over the limit
- temporarily.
+ Memory usage hard limit. This is the main mechanism to limit
+ memory usage of a cgroup. If a cgroup's memory usage reaches
+ this limit and can't be reduced, the OOM killer is invoked in
+ the cgroup. Under certain circumstances, the usage may go
+ over the limit temporarily.
In default configuration regular 0-order allocations always
succeed unless OOM killer chooses current task as a victim.
@@ -1238,9 +1393,17 @@ PAGE_SIZE multiple when read back.
Caller could retry them differently, return into userspace
as -ENOMEM or silently ignore in cases like disk readahead.
- This is the ultimate protection mechanism. As long as the
- high limit is used and monitored properly, this limit's
- utility is limited to providing the final safety net.
+ If memory.max is opened with O_NONBLOCK, then the synchronous
+ reclaim and oom-kill are bypassed. This is useful for admin
+ processes that need to dynamically adjust the job's memory limits
+ without expending their own CPU resources on memory reclamation.
+ The job will trigger the reclaim and/or oom-kill on its next
+ charge request.
+
+ Please note that with O_NONBLOCK, there is a chance that the
+ target memory cgroup may take indefinite amount of time to
+ reduce usage below the limit due to delayed charge request or
+ busy-hitting its memory to slow down reclaim.
memory.reclaim
A write-only nested-keyed file which exists for all cgroups.
@@ -1248,17 +1411,10 @@ PAGE_SIZE multiple when read back.
This is a simple interface to trigger memory reclaim in the
target cgroup.
- This file accepts a single key, the number of bytes to reclaim.
- No nested keys are currently supported.
-
Example::
echo "1G" > memory.reclaim
- The interface can be later extended with nested keys to
- configure the reclaim behavior. For example, specify the
- type of memory to reclaim from (anon, file, ..).
-
Please note that the kernel can over or under reclaim from
the target cgroup. If less bytes are reclaimed than the
specified amount, -EAGAIN is returned.
@@ -1270,12 +1426,29 @@ PAGE_SIZE multiple when read back.
This means that the networking layer will not adapt based on
reclaim induced by memory.reclaim.
+The following nested keys are defined.
+
+ ========== ================================
+ swappiness Swappiness value to reclaim with
+ ========== ================================
+
+ Specifying a swappiness value instructs the kernel to perform
+ the reclaim with that swappiness value. Note that this has the
+ same semantics as vm.swappiness applied to memcg reclaim with
+ all the existing limitations and potential future extensions.
+
+ The valid range for swappiness is [0-200, max], setting
+ swappiness=max exclusively reclaims anonymous memory.
+
memory.peak
- A read-only single value file which exists on non-root
- cgroups.
+ A read-write single value file which exists on non-root cgroups.
+
+ The max memory usage recorded for the cgroup and its descendants since
+ either the creation of the cgroup or the most recent reset for that FD.
- The max memory usage recorded for the cgroup and its
- descendants since the creation of the cgroup.
+ A write of any non-empty string to this file resets it to the
+ current memory usage for subsequent reads through the same
+ file descriptor.
memory.oom.group
A read-write single value file which exists on non-root
@@ -1340,6 +1513,10 @@ PAGE_SIZE multiple when read back.
oom_group_kill
The number of times a group OOM has occurred.
+ sock_throttled
+ The number of times network sockets associated with
+ this cgroup are throttled.
+
memory.events.local
Similar to memory.events but the fields in the file are local
to the cgroup i.e. not hierarchical. The file modified event
@@ -1364,7 +1541,10 @@ PAGE_SIZE multiple when read back.
anon
Amount of memory used in anonymous mappings such as
- brk(), sbrk(), and mmap(MAP_ANONYMOUS)
+ brk(), sbrk(), and mmap(MAP_ANONYMOUS). Note that
+ some kernel configurations might account complete larger
+ allocations (e.g., THP) if only some, but not all the
+ memory of such an allocation is mapped anymore.
file
Amount of memory used to cache filesystem data,
@@ -1384,7 +1564,7 @@ PAGE_SIZE multiple when read back.
sec_pagetables
Amount of memory allocated for secondary page tables,
this currently includes KVM mmu allocations on x86
- and arm64.
+ and arm64 and IOMMU page tables.
percpu (npn)
Amount of memory used for storing per-cpu kernel
@@ -1407,7 +1587,10 @@ PAGE_SIZE multiple when read back.
Amount of application memory swapped out to zswap.
file_mapped
- Amount of cached filesystem data mapped with mmap()
+ Amount of cached filesystem data mapped with mmap(). Note
+ that some kernel configurations might account complete
+ larger allocations (e.g., THP) if only some, but not
+ not all the memory of such an allocation is mapped.
file_dirty
Amount of cached filesystem data that was modified but
@@ -1479,6 +1662,12 @@ PAGE_SIZE multiple when read back.
workingset_nodereclaim
Number of times a shadow node has been reclaimed
+ pswpin (npn)
+ Number of pages swapped into memory
+
+ pswpout (npn)
+ Number of pages swapped out of memory
+
pgscan (npn)
Amount of scanned pages (in an inactive LRU list)
@@ -1494,6 +1683,9 @@ PAGE_SIZE multiple when read back.
pgscan_khugepaged (npn)
Amount of scanned pages by khugepaged (in an inactive LRU list)
+ pgscan_proactive (npn)
+ Amount of scanned pages proactively (in an inactive LRU list)
+
pgsteal_kswapd (npn)
Amount of reclaimed pages by kswapd
@@ -1503,6 +1695,9 @@ PAGE_SIZE multiple when read back.
pgsteal_khugepaged (npn)
Amount of reclaimed pages by khugepaged
+ pgsteal_proactive (npn)
+ Amount of reclaimed pages proactively
+
pgfault (npn)
Total number of page faults incurred
@@ -1524,6 +1719,24 @@ PAGE_SIZE multiple when read back.
pglazyfreed (npn)
Amount of reclaimed lazyfree pages
+ swpin_zero
+ Number of pages swapped into memory and filled with zero, where I/O
+ was optimized out because the page content was detected to be zero
+ during swapout.
+
+ swpout_zero
+ Number of zero-filled pages swapped out with I/O skipped due to the
+ content being detected as zero.
+
+ zswpin
+ Number of pages moved in to memory from zswap.
+
+ zswpout
+ Number of pages moved out of memory to zswap.
+
+ zswpwb
+ Number of pages written from zswap to swap.
+
thp_fault_alloc (npn)
Number of transparent hugepages which were allocated to satisfy
a page fault. This counter is not present when CONFIG_TRANSPARENT_HUGEPAGE
@@ -1534,6 +1747,42 @@ PAGE_SIZE multiple when read back.
collapsing an existing range of pages. This counter is not
present when CONFIG_TRANSPARENT_HUGEPAGE is not set.
+ thp_swpout (npn)
+ Number of transparent hugepages which are swapout in one piece
+ without splitting.
+
+ thp_swpout_fallback (npn)
+ Number of transparent hugepages which were split before swapout.
+ Usually because failed to allocate some continuous swap space
+ for the huge page.
+
+ numa_pages_migrated (npn)
+ Number of pages migrated by NUMA balancing.
+
+ numa_pte_updates (npn)
+ Number of pages whose page table entries are modified by
+ NUMA balancing to produce NUMA hinting faults on access.
+
+ numa_hint_faults (npn)
+ Number of NUMA hinting faults.
+
+ pgdemote_kswapd
+ Number of pages demoted by kswapd.
+
+ pgdemote_direct
+ Number of pages demoted directly.
+
+ pgdemote_khugepaged
+ Number of pages demoted by khugepaged.
+
+ pgdemote_proactive
+ Number of pages demoted by proactively.
+
+ hugetlb
+ Amount of memory used by hugetlb pages. This metric only shows
+ up if hugetlb usage is accounted for in memory.current (i.e.
+ cgroup is mounted with the memory_hugetlb_accounting option).
+
memory.numa_stat
A read-only nested-keyed file which exists on non-root cgroups.
@@ -1582,6 +1831,16 @@ PAGE_SIZE multiple when read back.
Healthy workloads are not expected to reach this limit.
+ memory.swap.peak
+ A read-write single value file which exists on non-root cgroups.
+
+ The max swap usage recorded for the cgroup and its descendants since
+ the creation of the cgroup or the most recent reset for that FD.
+
+ A write of any non-empty string to this file resets it to the
+ current memory usage for subsequent reads through the same
+ file descriptor.
+
memory.swap.max
A read-write single value file which exists on non-root
cgroups. The default is "max".
@@ -1629,6 +1888,24 @@ PAGE_SIZE multiple when read back.
limit, it will refuse to take any more stores before existing
entries fault back in or are written out to disk.
+ memory.zswap.writeback
+ A read-write single value file. The default value is "1".
+ Note that this setting is hierarchical, i.e. the writeback would be
+ implicitly disabled for child cgroups if the upper hierarchy
+ does so.
+
+ When this is set to 0, all swapping attempts to swapping devices
+ are disabled. This included both zswap writebacks, and swapping due
+ to zswap store failures. If the zswap store failures are recurring
+ (for e.g if the pages are incompressible), users can observe
+ reclaim inefficiency after disabling writeback (because the same
+ pages might be rejected again and again).
+
+ Note that this is subtly different from setting memory.swap.max to
+ 0, as it still allows for pages to be written to the zswap pool.
+ This setting has no effect if zswap is disabled, and swapping
+ is allowed unless memory.swap.max is set to 0.
+
memory.pressure
A read-only nested-keyed file.
@@ -1659,6 +1936,27 @@ memory - is necessary to determine whether a workload needs more
memory; unfortunately, memory pressure monitoring mechanism isn't
implemented yet.
+Reclaim Protection
+~~~~~~~~~~~~~~~~~~
+
+The protection configured with "memory.low" or "memory.min" applies relatively
+to the target of the reclaim (i.e. any of memory cgroup limits, proactive
+memory.reclaim or global reclaim apparently located in the root cgroup).
+The protection value configured for B applies unchanged to the reclaim
+targeting A (i.e. caused by competition with the sibling E)::
+
+ root - ... - A - B - C
+ \ ` D
+ ` E
+
+When the reclaim targets ancestors of A, the effective protection of B is
+capped by the protection value configured for A (and any other intermediate
+ancestors between A and the target).
+
+To express indifference about relative sibling protection, it is suggested to
+use memory_recursiveprot. Configuring all descendants of a parent with finite
+protection to "max" works but it may unnecessarily skew memory.events:low
+field.
Memory Ownership
~~~~~~~~~~~~~~~~
@@ -2018,37 +2316,41 @@ IO Priority
~~~~~~~~~~~
A single attribute controls the behavior of the I/O priority cgroup policy,
-namely the blkio.prio.class attribute. The following values are accepted for
+namely the io.prio.class attribute. The following values are accepted for
that attribute:
no-change
Do not modify the I/O priority class.
- none-to-rt
- For requests that do not have an I/O priority class (NONE),
- change the I/O priority class into RT. Do not modify
- the I/O priority class of other requests.
+ promote-to-rt
+ For requests that have a non-RT I/O priority class, change it into RT.
+ Also change the priority level of these requests to 4. Do not modify
+ the I/O priority of requests that have priority class RT.
restrict-to-be
For requests that do not have an I/O priority class or that have I/O
- priority class RT, change it into BE. Do not modify the I/O priority
- class of requests that have priority class IDLE.
+ priority class RT, change it into BE. Also change the priority level
+ of these requests to 0. Do not modify the I/O priority class of
+ requests that have priority class IDLE.
idle
Change the I/O priority class of all requests into IDLE, the lowest
I/O priority class.
+ none-to-rt
+ Deprecated. Just an alias for promote-to-rt.
+
The following numerical values are associated with the I/O priority policies:
-+-------------+---+
-| no-change | 0 |
-+-------------+---+
-| none-to-rt | 1 |
-+-------------+---+
-| rt-to-be | 2 |
-+-------------+---+
-| all-to-idle | 3 |
-+-------------+---+
++----------------+---+
+| no-change | 0 |
++----------------+---+
+| promote-to-rt | 1 |
++----------------+---+
+| restrict-to-be | 2 |
++----------------+---+
+| idle | 3 |
++----------------+---+
The numerical value that corresponds to each I/O priority class is as follows:
@@ -2064,9 +2366,13 @@ The numerical value that corresponds to each I/O priority class is as follows:
The algorithm to set the I/O priority class for a request is as follows:
-- Translate the I/O priority class policy into a number.
-- Change the request I/O priority class into the maximum of the I/O priority
- class policy number and the numerical I/O priority class.
+- If I/O priority class policy is promote-to-rt, change the request I/O
+ priority class to IOPRIO_CLASS_RT and change the request I/O priority
+ level to 4.
+- If I/O priority class policy is not promote-to-rt, translate the I/O priority
+ class policy into a number, then change the request I/O priority class
+ into the maximum of the I/O priority class policy number and the numerical
+ I/O priority class.
PID
---
@@ -2094,11 +2400,31 @@ PID Interface Files
Hard limit of number of processes.
pids.current
- A read-only single value file which exists on all cgroups.
+ A read-only single value file which exists on non-root cgroups.
The number of processes currently in the cgroup and its
descendants.
+ pids.peak
+ A read-only single value file which exists on non-root cgroups.
+
+ The maximum value that the number of processes in the cgroup and its
+ descendants has ever reached.
+
+ pids.events
+ A read-only flat-keyed file which exists on non-root cgroups. Unless
+ specified otherwise, a value change in this file generates a file
+ modified event. The following entries are defined.
+
+ max
+ The number of times the cgroup's total number of processes hit the pids.max
+ limit (see also pids_localevents).
+
+ pids.events.local
+ Similar to pids.events but the fields in the file are local
+ to the cgroup i.e. not hierarchical. The file modified event
+ generated on this file reflects only the local events.
+
Organisational operations are not blocked by cgroup policies, so it is
possible to have pids.current > pids.max. This can be done by either
setting the limit to be smaller than pids.current, or attaching enough
@@ -2215,6 +2541,60 @@ Cpuset Interface Files
Its value will be affected by memory nodes hotplug events.
+ cpuset.cpus.exclusive
+ A read-write multiple values file which exists on non-root
+ cpuset-enabled cgroups.
+
+ It lists all the exclusive CPUs that are allowed to be used
+ to create a new cpuset partition. Its value is not used
+ unless the cgroup becomes a valid partition root. See the
+ "cpuset.cpus.partition" section below for a description of what
+ a cpuset partition is.
+
+ When the cgroup becomes a partition root, the actual exclusive
+ CPUs that are allocated to that partition are listed in
+ "cpuset.cpus.exclusive.effective" which may be different
+ from "cpuset.cpus.exclusive". If "cpuset.cpus.exclusive"
+ has previously been set, "cpuset.cpus.exclusive.effective"
+ is always a subset of it.
+
+ Users can manually set it to a value that is different from
+ "cpuset.cpus". One constraint in setting it is that the list of
+ CPUs must be exclusive with respect to "cpuset.cpus.exclusive"
+ of its sibling. If "cpuset.cpus.exclusive" of a sibling cgroup
+ isn't set, its "cpuset.cpus" value, if set, cannot be a subset
+ of it to leave at least one CPU available when the exclusive
+ CPUs are taken away.
+
+ For a parent cgroup, any one of its exclusive CPUs can only
+ be distributed to at most one of its child cgroups. Having an
+ exclusive CPU appearing in two or more of its child cgroups is
+ not allowed (the exclusivity rule). A value that violates the
+ exclusivity rule will be rejected with a write error.
+
+ The root cgroup is a partition root and all its available CPUs
+ are in its exclusive CPU set.
+
+ cpuset.cpus.exclusive.effective
+ A read-only multiple values file which exists on all non-root
+ cpuset-enabled cgroups.
+
+ This file shows the effective set of exclusive CPUs that
+ can be used to create a partition root. The content
+ of this file will always be a subset of its parent's
+ "cpuset.cpus.exclusive.effective" if its parent is not the root
+ cgroup. It will also be a subset of "cpuset.cpus.exclusive"
+ if it is set. If "cpuset.cpus.exclusive" is not set, it is
+ treated to have an implicit value of "cpuset.cpus" in the
+ formation of local partition.
+
+ cpuset.cpus.isolated
+ A read-only and root cgroup only multiple values file.
+
+ This file shows the set of all isolated CPUs used in existing
+ isolated partitions. It will be empty if no isolated partition
+ is created.
+
cpuset.cpus.partition
A read-write single value file which exists on non-root
cpuset-enabled cgroups. This flag is owned by the parent cgroup
@@ -2228,25 +2608,40 @@ Cpuset Interface Files
"isolated" Partition root without load balancing
========== =====================================
- The root cgroup is always a partition root and its state
- cannot be changed. All other non-root cgroups start out as
- "member".
+ A cpuset partition is a collection of cpuset-enabled cgroups with
+ a partition root at the top of the hierarchy and its descendants
+ except those that are separate partition roots themselves and
+ their descendants. A partition has exclusive access to the
+ set of exclusive CPUs allocated to it. Other cgroups outside
+ of that partition cannot use any CPUs in that set.
+
+ There are two types of partitions - local and remote. A local
+ partition is one whose parent cgroup is also a valid partition
+ root. A remote partition is one whose parent cgroup is not a
+ valid partition root itself. Writing to "cpuset.cpus.exclusive"
+ is optional for the creation of a local partition as its
+ "cpuset.cpus.exclusive" file will assume an implicit value that
+ is the same as "cpuset.cpus" if it is not set. Writing the
+ proper "cpuset.cpus.exclusive" values down the cgroup hierarchy
+ before the target partition root is mandatory for the creation
+ of a remote partition.
+
+ Currently, a remote partition cannot be created under a local
+ partition. All the ancestors of a remote partition root except
+ the root cgroup cannot be a partition root.
+
+ The root cgroup is always a partition root and its state cannot
+ be changed. All other non-root cgroups start out as "member".
When set to "root", the current cgroup is the root of a new
- partition or scheduling domain that comprises itself and all
- its descendants except those that are separate partition roots
- themselves and their descendants.
-
- When set to "isolated", the CPUs in that partition root will
- be in an isolated state without any load balancing from the
- scheduler. Tasks placed in such a partition with multiple
- CPUs should be carefully distributed and bound to each of the
- individual CPUs for optimal performance.
+ partition or scheduling domain. The set of exclusive CPUs is
+ determined by the value of its "cpuset.cpus.exclusive.effective".
- The value shown in "cpuset.cpus.effective" of a partition root
- is the CPUs that the partition root can dedicate to a potential
- new child partition root. The new child subtracts available
- CPUs from its parent "cpuset.cpus.effective".
+ When set to "isolated", the CPUs in that partition will be in
+ an isolated state without any load balancing from the scheduler
+ and excluded from the unbound workqueues. Tasks placed in such
+ a partition with multiple CPUs should be carefully distributed
+ and bound to each of the individual CPUs for optimal performance.
A partition root ("root" or "isolated") can be in one of the
two possible states - valid or invalid. An invalid partition
@@ -2270,37 +2665,33 @@ Cpuset Interface Files
In the case of an invalid partition root, a descriptive string on
why the partition is invalid is included within parentheses.
- For a partition root to become valid, the following conditions
+ For a local partition root to be valid, the following conditions
must be met.
- 1) The "cpuset.cpus" is exclusive with its siblings , i.e. they
- are not shared by any of its siblings (exclusivity rule).
- 2) The parent cgroup is a valid partition root.
- 3) The "cpuset.cpus" is not empty and must contain at least
- one of the CPUs from parent's "cpuset.cpus", i.e. they overlap.
- 4) The "cpuset.cpus.effective" cannot be empty unless there is
+ 1) The parent cgroup is a valid partition root.
+ 2) The "cpuset.cpus.exclusive.effective" file cannot be empty,
+ though it may contain offline CPUs.
+ 3) The "cpuset.cpus.effective" cannot be empty unless there is
no task associated with this partition.
- External events like hotplug or changes to "cpuset.cpus" can
- cause a valid partition root to become invalid and vice versa.
- Note that a task cannot be moved to a cgroup with empty
- "cpuset.cpus.effective".
+ For a remote partition root to be valid, all the above conditions
+ except the first one must be met.
- For a valid partition root with the sibling cpu exclusivity
- rule enabled, changes made to "cpuset.cpus" that violate the
- exclusivity rule will invalidate the partition as well as its
- sibling partitions with conflicting cpuset.cpus values. So
- care must be taking in changing "cpuset.cpus".
+ External events like hotplug or changes to "cpuset.cpus" or
+ "cpuset.cpus.exclusive" can cause a valid partition root to
+ become invalid and vice versa. Note that a task cannot be
+ moved to a cgroup with empty "cpuset.cpus.effective".
A valid non-root parent partition may distribute out all its CPUs
- to its child partitions when there is no task associated with it.
+ to its child local partitions when there is no task associated
+ with it.
- Care must be taken to change a valid partition root to
- "member" as all its child partitions, if present, will become
+ Care must be taken to change a valid partition root to "member"
+ as all its child local partitions, if present, will become
invalid causing disruption to tasks running in those child
partitions. These inactivated partitions could be recovered if
their parent is switched back to a partition root with a proper
- set of "cpuset.cpus".
+ value in "cpuset.cpus" or "cpuset.cpus.exclusive".
Poll and inotify events are triggered whenever the state of
"cpuset.cpus.partition" changes. That includes changes caused
@@ -2310,6 +2701,11 @@ Cpuset Interface Files
to "cpuset.cpus.partition" without the need to do continuous
polling.
+ A user can pre-configure certain CPUs to an isolated state
+ with load balancing disabled at boot time with the "isolcpus"
+ kernel boot command line option. If those CPUs are to be put
+ into a partition, they have to be used in an isolated partition.
+
Device controller
-----------------
@@ -2374,6 +2770,49 @@ RDMA Interface Files
mlx4_0 hca_handle=1 hca_object=20
ocrdma1 hca_handle=1 hca_object=23
+DMEM
+----
+
+The "dmem" controller regulates the distribution and accounting of
+device memory regions. Because each memory region may have its own page size,
+which does not have to be equal to the system page size, the units are always bytes.
+
+DMEM Interface Files
+~~~~~~~~~~~~~~~~~~~~
+
+ dmem.max, dmem.min, dmem.low
+ A readwrite nested-keyed file that exists for all the cgroups
+ except root that describes current configured resource limit
+ for a region.
+
+ An example for xe follows::
+
+ drm/0000:03:00.0/vram0 1073741824
+ drm/0000:03:00.0/stolen max
+
+ The semantics are the same as for the memory cgroup controller, and are
+ calculated in the same way.
+
+ dmem.capacity
+ A read-only file that describes maximum region capacity.
+ It only exists on the root cgroup. Not all memory can be
+ allocated by cgroups, as the kernel reserves some for
+ internal use.
+
+ An example for xe follows::
+
+ drm/0000:03:00.0/vram0 8514437120
+ drm/0000:03:00.0/stolen 67108864
+
+ dmem.current
+ A read-only file that describes current resource usage.
+ It exists for all the cgroup except root.
+
+ An example for xe follows::
+
+ drm/0000:03:00.0/vram0 12550144
+ drm/0000:03:00.0/stolen 8650752
+
HugeTLB
-------
@@ -2439,13 +2878,22 @@ Miscellaneous controller provides 3 interface files. If two misc resources (res_
res_b 10
misc.current
- A read-only flat-keyed file shown in the non-root cgroups. It shows
+ A read-only flat-keyed file shown in the all cgroups. It shows
the current usage of the resources in the cgroup and its children.::
$ cat misc.current
res_a 3
res_b 0
+ misc.peak
+ A read-only flat-keyed file shown in all cgroups. It shows the
+ historical maximum usage of the resources in the cgroup and its
+ children.::
+
+ $ cat misc.peak
+ res_a 10
+ res_b 8
+
misc.max
A read-write flat-keyed file shown in the non root cgroups. Allowed
maximum usage of the resources in the cgroup and its children.::
@@ -2475,6 +2923,11 @@ Miscellaneous controller provides 3 interface files. If two misc resources (res_
The number of times the cgroup's resource usage was
about to go over the max boundary.
+ misc.events.local
+ Similar to misc.events but the fields in the file are local to the
+ cgroup i.e. not hierarchical. The file modified event generated on
+ this file reflects only the local events.
+
Migration and Ownership
~~~~~~~~~~~~~~~~~~~~~~~
@@ -2683,7 +3136,7 @@ Filesystem Support for Writeback
--------------------------------
A filesystem can support cgroup writeback by updating
-address_space_operations->writepage[s]() to annotate bio's using the
+address_space_operations->writepages() to annotate bio's using the
following two functions.
wbc_init_bio(@wbc, @bio)
@@ -2693,7 +3146,7 @@ following two functions.
a queue (device) has been associated with the bio and
before submission.
- wbc_account_cgroup_owner(@wbc, @page, @bytes)
+ wbc_account_cgroup_owner(@wbc, @folio, @bytes)
Should be called for each data segment being written out.
While this function doesn't care exactly when it's called
during the writeback session, it's the easiest and most
@@ -2725,8 +3178,8 @@ Deprecated v1 Core Features
- "cgroup.clone_children" is removed.
-- /proc/cgroups is meaningless for v2. Use "cgroup.controllers" file
- at the root instead.
+- /proc/cgroups is meaningless for v2. Use "cgroup.controllers" or
+ "cgroup.stat" files at the root instead.
Issues with v1 and Rationales for v2
diff --git a/Documentation/admin-guide/cifs/changes.rst b/Documentation/admin-guide/cifs/changes.rst
index 3147bbae9c43..8c42c4de510b 100644
--- a/Documentation/admin-guide/cifs/changes.rst
+++ b/Documentation/admin-guide/cifs/changes.rst
@@ -5,5 +5,5 @@ Changes
See https://wiki.samba.org/index.php/LinuxCIFSKernel for summary
information about fixes/improvements to CIFS/SMB2/SMB3 support (changes
to cifs.ko module) by kernel version (and cifs internal module version).
-This may be easier to read than parsing the output of "git log fs/cifs"
-by release.
+This may be easier to read than parsing the output of
+"git log fs/smb/client" by release.
diff --git a/Documentation/admin-guide/cifs/introduction.rst b/Documentation/admin-guide/cifs/introduction.rst
index 53ea62906aa5..ffc6e2564dd5 100644
--- a/Documentation/admin-guide/cifs/introduction.rst
+++ b/Documentation/admin-guide/cifs/introduction.rst
@@ -28,7 +28,7 @@ Introduction
high performance safe distributed caching (leases/oplocks), optional packet
signing, large files, Unicode support and other internationalization
improvements. Since both Samba server and this filesystem client support the
- CIFS Unix extensions, and the Linux client also suppors SMB3 POSIX extensions,
+ CIFS Unix extensions, and the Linux client also supports SMB3 POSIX extensions,
the combination can provide a reasonable alternative to other network and
cluster file systems for fileserving in some Linux to Linux environments,
not just in Linux to Windows (or Linux to Mac) environments.
diff --git a/Documentation/admin-guide/cifs/todo.rst b/Documentation/admin-guide/cifs/todo.rst
index 2646ed2e2d3e..9a65c670774e 100644
--- a/Documentation/admin-guide/cifs/todo.rst
+++ b/Documentation/admin-guide/cifs/todo.rst
@@ -2,7 +2,8 @@
TODO
====
-Version 2.14 December 21, 2018
+As of 6.7 kernel. See https://wiki.samba.org/index.php/LinuxCIFSKernel
+for list of features added by release
A Partial List of Missing Features
==================================
@@ -12,22 +13,22 @@ for visible, important contributions to this module. Here
is a partial list of the known problems and missing features:
a) SMB3 (and SMB3.1.1) missing optional features:
+ multichannel performance optimizations, algorithmic channel selection,
+ directory leases optimizations,
+ support for faster packet signing (GMAC),
+ support for compression over the network,
+ T10 copy offload ie "ODX" (copy chunk, and "Duplicate Extents" ioctl
+ are currently the only two server side copy mechanisms supported)
- - multichannel (partially integrated), integration of multichannel with RDMA
- - directory leases (improved metadata caching). Currently only implemented for root dir
- - T10 copy offload ie "ODX" (copy chunk, and "Duplicate Extents" ioctl
- currently the only two server side copy mechanisms supported)
+b) Better optimized compounding and error handling for sparse file support,
+ perhaps addition of new optional SMB3.1.1 fsctls to make collapse range
+ and insert range more atomic
-b) improved sparse file support (fiemap and SEEK_HOLE are implemented
- but additional features would be supportable by the protocol such
- as FALLOC_FL_COLLAPSE_RANGE and FALLOC_FL_INSERT_RANGE)
-
-c) Directory entry caching relies on a 1 second timer, rather than
- using Directory Leases, currently only the root file handle is cached longer
- by leveraging Directory Leases
+c) Support for SMB3.1.1 over QUIC (and perhaps other socket based protocols
+ like SCTP)
d) quota support (needs minor kernel change since quota calls otherwise
- won't make it to network filesystems or deviceless filesystems).
+ won't make it to network filesystems or deviceless filesystems).
e) Additional use cases can be optimized to use "compounding" (e.g.
open/query/close and open/setinfo/close) to reduce the number of
@@ -92,23 +93,20 @@ t) split cifs and smb3 support into separate modules so legacy (and less
v) Additional testing of POSIX Extensions for SMB3.1.1
-w) Add support for additional strong encryption types, and additional spnego
- authentication mechanisms (see MS-SMB2). GCM-256 is now partially implemented.
+w) Support for the Mac SMB3.1.1 extensions to improve interop with Apple servers
+
+x) Support for additional authentication options (e.g. IAKERB, peer-to-peer
+ Kerberos, SCRAM and others supported by existing servers)
-x) Finish support for SMB3.1.1 compression
+y) Improved tracing, more eBPF trace points, better scripts for performance
+ analysis
Known Bugs
==========
See https://bugzilla.samba.org - search on product "CifsVFS" for
current bug list. Also check http://bugzilla.kernel.org (Product = File System, Component = CIFS)
-
-1) existing symbolic links (Windows reparse points) are recognized but
- can not be created remotely. They are implemented for Samba and those that
- support the CIFS Unix extensions, although earlier versions of Samba
- overly restrict the pathnames.
-2) follow_link and readdir code does not follow dfs junctions
- but recognizes them
+and xfstest results e.g. https://wiki.samba.org/index.php/Xfstest-results-smb3
Misc testing to do
==================
diff --git a/Documentation/admin-guide/cifs/usage.rst b/Documentation/admin-guide/cifs/usage.rst
index 2e151cd8c2e4..d989ae5778ba 100644
--- a/Documentation/admin-guide/cifs/usage.rst
+++ b/Documentation/admin-guide/cifs/usage.rst
@@ -45,7 +45,7 @@ Installation instructions
If you have built the CIFS vfs as module (successfully) simply
type ``make modules_install`` (or if you prefer, manually copy the file to
-the modules directory e.g. /lib/modules/2.4.10-4GB/kernel/fs/cifs/cifs.ko).
+the modules directory e.g. /lib/modules/6.3.0-060300-generic/kernel/fs/smb/client/cifs.ko).
If you have built the CIFS vfs into the kernel itself, follow the instructions
for your distribution on how to install a new kernel (usually you
@@ -66,22 +66,22 @@ If cifs is built as a module, then the size and number of network buffers
and maximum number of simultaneous requests to one server can be configured.
Changing these from their defaults is not recommended. By executing modinfo::
- modinfo kernel/fs/cifs/cifs.ko
+ modinfo <path to cifs.ko>
-on kernel/fs/cifs/cifs.ko the list of configuration changes that can be made
+on kernel/fs/smb/client/cifs.ko the list of configuration changes that can be made
at module initialization time (by running insmod cifs.ko) can be seen.
Recommendations
===============
-To improve security the SMB2.1 dialect or later (usually will get SMB3) is now
+To improve security the SMB2.1 dialect or later (usually will get SMB3.1.1) is now
the new default. To use old dialects (e.g. to mount Windows XP) use "vers=1.0"
on mount (or vers=2.0 for Windows Vista). Note that the CIFS (vers=1.0) is
much older and less secure than the default dialect SMB3 which includes
many advanced security features such as downgrade attack detection
and encrypted shares and stronger signing and authentication algorithms.
There are additional mount options that may be helpful for SMB3 to get
-improved POSIX behavior (NB: can use vers=3.0 to force only SMB3, never 2.1):
+improved POSIX behavior (NB: can use vers=3 to force SMB3 or later, never 2.1):
``mfsymlinks`` and either ``cifsacl`` or ``modefromsid`` (usually with ``idsfromsid``)
@@ -270,6 +270,8 @@ configured for Unix Extensions (and the client has not disabled
illegal Windows/NTFS/SMB characters to a remap range (this mount parameter
is the default for SMB3). This remap (``mapposix``) range is also
compatible with Mac (and "Services for Mac" on some older Windows).
+When POSIX Extensions for SMB 3.1.1 are negotiated, remapping is automatically
+disabled.
CIFS VFS Mount Options
======================
@@ -715,6 +717,7 @@ DebugData Displays information about active CIFS sessions and
Stats Lists summary resource usage information as well as per
share statistics.
open_files List all the open file handles on all active SMB sessions.
+mount_params List of all mount parameters available for the module
======================= =======================================================
Configuration pseudo-files:
@@ -722,40 +725,26 @@ Configuration pseudo-files:
======================= =======================================================
SecurityFlags Flags which control security negotiation and
also packet signing. Authentication (may/must)
- flags (e.g. for NTLM and/or NTLMv2) may be combined with
+ flags (e.g. for NTLMv2) may be combined with
the signing flags. Specifying two different password
hashing mechanisms (as "must use") on the other hand
does not make much sense. Default flags are::
- 0x07007
-
- (NTLM, NTLMv2 and packet signing allowed). The maximum
- allowable flags if you want to allow mounts to servers
- using weaker password hashes is 0x37037 (lanman,
- plaintext, ntlm, ntlmv2, signing allowed). Some
- SecurityFlags require the corresponding menuconfig
- options to be enabled. Enabling plaintext
- authentication currently requires also enabling
- lanman authentication in the security flags
- because the cifs module only supports sending
- laintext passwords using the older lanman dialect
- form of the session setup SMB. (e.g. for authentication
- using plain text passwords, set the SecurityFlags
- to 0x30030)::
+ 0x00C5
+
+ (NTLMv2 and packet signing allowed). Some SecurityFlags
+ may require enabling a corresponding menuconfig option.
may use packet signing 0x00001
must use packet signing 0x01001
- may use NTLM (most common password hash) 0x00002
- must use NTLM 0x02002
may use NTLMv2 0x00004
must use NTLMv2 0x04004
- may use Kerberos security 0x00008
- must use Kerberos 0x08008
- may use lanman (weak) password hash 0x00010
- must use lanman password hash 0x10010
- may use plaintext passwords 0x00020
- must use plaintext passwords 0x20020
- (reserved for future packet encryption) 0x00040
+ may use Kerberos security (krb5) 0x00008
+ must use Kerberos 0x08008
+ may use NTLMSSP 0x00080
+ must use NTLMSSP 0x80080
+ seal (packet encryption) 0x00040
+ must seal 0x40040
cifsFYI If set to non-zero value, additional debug information
will be logged to the system error log. This field
@@ -864,6 +853,11 @@ i.e.::
echo "value" > /sys/module/cifs/parameters/<param>
+More detailed descriptions of the available module parameters and their values
+can be seen by doing:
+
+ modinfo cifs (or modinfo smb3)
+
================= ==========================================================
1. enable_oplocks Enable or disable oplocks. Oplocks are enabled by default.
[Y/y/1]. To disable use any of [N/n/0].
diff --git a/Documentation/admin-guide/device-mapper/delay.rst b/Documentation/admin-guide/device-mapper/delay.rst
index 917ba8c33359..a1e673c0e782 100644
--- a/Documentation/admin-guide/device-mapper/delay.rst
+++ b/Documentation/admin-guide/device-mapper/delay.rst
@@ -3,29 +3,52 @@ dm-delay
========
Device-Mapper's "delay" target delays reads and/or writes
-and maps them to different devices.
+and/or flushes and optionally maps them to different devices.
-Parameters::
+Arguments::
<device> <offset> <delay> [<write_device> <write_offset> <write_delay>
[<flush_device> <flush_offset> <flush_delay>]]
-With separate write parameters, the first set is only used for reads.
+Table line has to either have 3, 6 or 9 arguments:
+
+3: apply offset and delay to read, write and flush operations on device
+
+6: apply offset and delay to device, also apply write_offset and write_delay
+ to write and flush operations on optionally different write_device with
+ optionally different sector offset
+
+9: same as 6 arguments plus define flush_offset and flush_delay explicitly
+ on/with optionally different flush_device/flush_offset.
+
Offsets are specified in sectors.
+
Delays are specified in milliseconds.
+
Example scripts
===============
::
-
#!/bin/sh
- # Create device delaying rw operation for 500ms
- echo "0 `blockdev --getsz $1` delay $1 0 500" | dmsetup create delayed
+ #
+ # Create mapped device named "delayed" delaying read, write and flush operations for 500ms.
+ #
+ dmsetup create delayed --table "0 `blockdev --getsz $1` delay $1 0 500"
::
+ #!/bin/sh
+ #
+ # Create mapped device delaying write and flush operations for 400ms and
+ # splitting reads to device $1 but writes and flushes to different device $2
+ # to different offsets of 2048 and 4096 sectors respectively.
+ #
+ dmsetup create delayed --table "0 `blockdev --getsz $1` delay $1 2048 0 $2 4096 400"
+::
#!/bin/sh
- # Create device delaying only write operation for 500ms and
- # splitting reads and writes to different devices $1 $2
- echo "0 `blockdev --getsz $1` delay $1 0 0 $2 0 500" | dmsetup create delayed
+ #
+ # Create mapped device delaying reads for 50ms, writes for 100ms and flushes for 333ms
+ # onto the same backing device at offset 0 sectors.
+ #
+ dmsetup create delayed --table "0 `blockdev --getsz $1` delay $1 0 50 $2 0 100 $1 0 333"
diff --git a/Documentation/admin-guide/device-mapper/dm-crypt.rst b/Documentation/admin-guide/device-mapper/dm-crypt.rst
index aa2d04d95df6..4467f6d4b632 100644
--- a/Documentation/admin-guide/device-mapper/dm-crypt.rst
+++ b/Documentation/admin-guide/device-mapper/dm-crypt.rst
@@ -113,6 +113,11 @@ same_cpu_crypt
The default is to use an unbound workqueue so that encryption work
is automatically balanced between available CPUs.
+high_priority
+ Set dm-crypt workqueues and the writer thread to high priority. This
+ improves throughput and latency of dm-crypt while degrading general
+ responsiveness of the system.
+
submit_from_crypt_cpus
Disable offloading writes to a separate thread after encryption.
There are some situations where offloading write bios from the
@@ -141,6 +146,11 @@ integrity:<bytes>:<type>
integrity for the encrypted device. The additional space is then
used for storing authentication tag (and persistent IV if needed).
+integrity_key_size:<bytes>
+ Optionally set the integrity key size if it differs from the digest size.
+ It allows the use of wrapped key algorithms where the key size is
+ independent of the cryptographic key size.
+
sector_size:<bytes>
Use <bytes> as the encryption unit instead of 512 bytes sectors.
This option can be in range 512 - 4096 bytes and must be power of two.
@@ -155,6 +165,27 @@ iv_large_sectors
The <iv_offset> must be multiple of <sector_size> (in 512 bytes units)
if this flag is specified.
+integrity_key_size:<bytes>
+ Use an integrity key of <bytes> size instead of using an integrity key size
+ of the digest size of the used HMAC algorithm.
+
+
+Module parameters::
+ max_read_size
+ Maximum size of read requests. When a request larger than this size
+ is received, dm-crypt will split the request. The splitting improves
+ concurrency (the split requests could be encrypted in parallel by multiple
+ cores), but it also causes overhead. The user should tune this parameters to
+ fit the actual workload.
+
+ max_write_size
+ Maximum size of write requests. When a request larger than this size
+ is received, dm-crypt will split the request. The splitting improves
+ concurrency (the split requests could be encrypted in parallel by multiple
+ cores), but it also causes overhead. The user should tune this parameters to
+ fit the actual workload.
+
+
Example scripts
===============
LUKS (Linux Unified Key Setup) is now the preferred way to set up disk
diff --git a/Documentation/admin-guide/device-mapper/dm-flakey.rst b/Documentation/admin-guide/device-mapper/dm-flakey.rst
index f7104c01b0f7..f967c5fea219 100644
--- a/Documentation/admin-guide/device-mapper/dm-flakey.rst
+++ b/Documentation/admin-guide/device-mapper/dm-flakey.rst
@@ -67,6 +67,16 @@ Optional feature parameters:
Perform the replacement only if bio->bi_opf has all the
selected flags set.
+ random_read_corrupt <probability>
+ During <down interval>, replace random byte in a read bio
+ with a random value. probability is an integer between
+ 0 and 1000000000 meaning 0% to 100% probability of corruption.
+
+ random_write_corrupt <probability>
+ During <down interval>, replace random byte in a write bio
+ with a random value. probability is an integer between
+ 0 and 1000000000 meaning 0% to 100% probability of corruption.
+
Examples:
Replaces the 32nd byte of READ bios with the value 1::
diff --git a/Documentation/admin-guide/device-mapper/dm-integrity.rst b/Documentation/admin-guide/device-mapper/dm-integrity.rst
index 8db172efa272..c2e18ecc065c 100644
--- a/Documentation/admin-guide/device-mapper/dm-integrity.rst
+++ b/Documentation/admin-guide/device-mapper/dm-integrity.rst
@@ -25,7 +25,7 @@ mode it calculates and verifies the integrity tag internally. In this
mode, the dm-integrity target can be used to detect silent data
corruption on the disk or in the I/O path.
-There's an alternate mode of operation where dm-integrity uses bitmap
+There's an alternate mode of operation where dm-integrity uses a bitmap
instead of a journal. If a bit in the bitmap is 1, the corresponding
region's data and integrity tags are not synchronized - if the machine
crashes, the unsynchronized regions will be recalculated. The bitmap mode
@@ -38,6 +38,15 @@ the device. But it will only format the device if the superblock contains
zeroes. If the superblock is neither valid nor zeroed, the dm-integrity
target can't be loaded.
+Accesses to the on-disk metadata area containing checksums (aka tags) are
+buffered using dm-bufio. When an access to any given metadata area
+occurs, each unique metadata area gets its own buffer(s). The buffer size
+is capped at the size of the metadata area, but may be smaller, thereby
+requiring multiple buffers to represent the full metadata area. A smaller
+buffer size will produce a smaller resulting read/write operation to the
+metadata area for small reads/writes. The metadata is still read even in
+a full write to the data covered by a single buffer.
+
To use the target for the first time:
1. overwrite the superblock with zeroes
@@ -83,6 +92,11 @@ Target arguments:
allowed. This mode is useful for data recovery if the
device cannot be activated in any of the other standard
modes.
+ I - inline mode - in this mode, dm-integrity will store integrity
+ data directly in the underlying device sectors.
+ The underlying device must have an integrity profile that
+ allows storing user integrity data and provides enough
+ space for the selected integrity tag.
5. the number of additional arguments
@@ -93,7 +107,7 @@ journal_sectors:number
device. If the device is already formatted, the value from the
superblock is used.
-interleave_sectors:number
+interleave_sectors:number (default 32768)
The number of interleaved sectors. This values is rounded down to
a power of two. If the device is already formatted, the value from
the superblock is used.
@@ -102,20 +116,16 @@ meta_device:device
Don't interleave the data and metadata on the device. Use a
separate device for metadata.
-buffer_sectors:number
- The number of sectors in one buffer. The value is rounded down to
- a power of two.
-
- The tag area is accessed using buffers, the buffer size is
- configurable. The large buffer size means that the I/O size will
- be larger, but there could be less I/Os issued.
+buffer_sectors:number (default 128)
+ The number of sectors in one metadata buffer. The value is rounded
+ down to a power of two.
-journal_watermark:number
+journal_watermark:number (default 50)
The journal watermark in percents. When the size of the journal
exceeds this watermark, the thread that flushes the journal will
be started.
-commit_time:number
+commit_time:number (default 10000)
Commit time in milliseconds. When this time passes, the journal is
written. The journal is also written immediately if the FLUSH
request is received.
@@ -163,11 +173,10 @@ journal_mac:algorithm(:key) (the key is optional)
the journal. Thus, modified sector number would be detected at
this stage.
-block_size:number
- The size of a data block in bytes. The larger the block size the
+block_size:number (default 512)
+ The size of a data block in bytes. The larger the block size the
less overhead there is for per-block integrity metadata.
- Supported values are 512, 1024, 2048 and 4096 bytes. If not
- specified the default block size is 512 bytes.
+ Supported values are 512, 1024, 2048 and 4096 bytes.
sectors_per_bit:number
In the bitmap mode, this parameter specifies the number of
@@ -209,6 +218,12 @@ table and swap the tables with suspend and resume). The other arguments
should not be changed when reloading the target because the layout of disk
data depend on them and the reloaded target would be non-functional.
+For example, on a device using the default interleave_sectors of 32768, a
+block_size of 512, and an internal_hash of crc32c with a tag size of 4
+bytes, it will take 128 KiB of tags to track a full data area, requiring
+256 sectors of metadata per data area. With the default buffer_sectors of
+128, that means there will be 2 buffers per metadata area, or 2 buffers
+per 16 MiB of data.
Status line:
@@ -286,7 +301,8 @@ The layout of the formatted block device:
Each run contains:
* tag area - it contains integrity tags. There is one tag for each
- sector in the data area
+ sector in the data area. The size of this area is always 4KiB or
+ greater.
* data area - it contains data sectors. The number of data sectors
in one run must be a power of two. log2 of this value is stored
in the superblock.
diff --git a/Documentation/admin-guide/device-mapper/dm-pcache.rst b/Documentation/admin-guide/device-mapper/dm-pcache.rst
new file mode 100644
index 000000000000..09d327ef4b14
--- /dev/null
+++ b/Documentation/admin-guide/device-mapper/dm-pcache.rst
@@ -0,0 +1,202 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=================================
+dm-pcache — Persistent Cache
+=================================
+
+*Author: Dongsheng Yang <dongsheng.yang@linux.dev>*
+
+This document describes *dm-pcache*, a Device-Mapper target that lets a
+byte-addressable *DAX* (persistent-memory, “pmem”) region act as a
+high-performance, crash-persistent cache in front of a slower block
+device. The code lives in `drivers/md/dm-pcache/`.
+
+Quick feature summary
+=====================
+
+* *Write-back* caching (only mode currently supported).
+* *16 MiB segments* allocated on the pmem device.
+* *Data CRC32* verification (optional, per cache).
+* Crash-safe: every metadata structure is duplicated (`PCACHE_META_INDEX_MAX
+ == 2`) and protected with CRC+sequence numbers.
+* *Multi-tree indexing* (indexing trees sharded by logical address) for high PMem parallelism
+* Pure *DAX path* I/O – no extra BIO round-trips
+* *Log-structured write-back* that preserves backend crash-consistency
+
+
+Constructor
+===========
+
+::
+
+ pcache <cache_dev> <backing_dev> [<number_of_optional_arguments> <cache_mode writeback> <data_crc true|false>]
+
+========================= ====================================================
+``cache_dev`` Any DAX-capable block device (``/dev/pmem0``…).
+ All metadata *and* cached blocks are stored here.
+
+``backing_dev`` The slow block device to be cached.
+
+``cache_mode`` Optional, Only ``writeback`` is accepted at the
+ moment.
+
+``data_crc`` Optional, default to ``false``
+
+ * ``true`` – store CRC32 for every cached entry
+ and verify on reads
+ * ``false`` – skip CRC (faster)
+========================= ====================================================
+
+Example
+-------
+
+.. code-block:: shell
+
+ dmsetup create pcache_sdb --table \
+ "0 $(blockdev --getsz /dev/sdb) pcache /dev/pmem0 /dev/sdb 4 cache_mode writeback data_crc true"
+
+The first time a pmem device is used, dm-pcache formats it automatically
+(super-block, cache_info, etc.).
+
+
+Status line
+===========
+
+``dmsetup status <device>`` (``STATUSTYPE_INFO``) prints:
+
+::
+
+ <sb_flags> <seg_total> <cache_segs> <segs_used> \
+ <gc_percent> <cache_flags> \
+ <key_head_seg>:<key_head_off> \
+ <dirty_tail_seg>:<dirty_tail_off> \
+ <key_tail_seg>:<key_tail_off>
+
+Field meanings
+--------------
+
+=============================== =============================================
+``sb_flags`` Super-block flags (e.g. endian marker).
+
+``seg_total`` Number of physical *pmem* segments.
+
+``cache_segs`` Number of segments used for cache.
+
+``segs_used`` Segments currently allocated (bitmap weight).
+
+``gc_percent`` Current GC high-water mark (0-90).
+
+``cache_flags`` Bit 0 – DATA_CRC enabled
+ Bit 1 – INIT_DONE (cache initialised)
+ Bits 2-5 – cache mode (0 == WB).
+
+``key_head`` Where new key-sets are being written.
+
+``dirty_tail`` First dirty key-set that still needs
+ write-back to the backing device.
+
+``key_tail`` First key-set that may be reclaimed by GC.
+=============================== =============================================
+
+
+Messages
+========
+
+*Change GC trigger*
+
+::
+
+ dmsetup message <dev> 0 gc_percent <0-90>
+
+
+Theory of operation
+===================
+
+Sub-devices
+-----------
+
+==================== =========================================================
+backing_dev Any block device (SSD/HDD/loop/LVM, etc.).
+cache_dev DAX device; must expose direct-access memory.
+==================== =========================================================
+
+Segments and key-sets
+---------------------
+
+* The pmem space is divided into *16 MiB segments*.
+* Each write allocates space from a per-CPU *data_head* inside a segment.
+* A *cache-key* records a logical range on the origin and where it lives
+ inside pmem (segment + offset + generation).
+* 128 keys form a *key-set* (kset); ksets are written sequentially in pmem
+ and are themselves crash-safe (CRC).
+* The pair *(key_tail, dirty_tail)* delimit clean/dirty and live/dead ksets.
+
+Write-back
+----------
+
+Dirty keys are queued into a tree; a background worker copies data
+back to the backing_dev and advances *dirty_tail*. A FLUSH/FUA bio from the
+upper layers forces an immediate metadata commit.
+
+Garbage collection
+------------------
+
+GC starts when ``segs_used >= seg_total * gc_percent / 100``. It walks
+from *key_tail*, frees segments whose every key has been invalidated, and
+advances *key_tail*.
+
+CRC verification
+----------------
+
+If ``data_crc is enabled`` dm-pcache computes a CRC32 over every cached data
+range when it is inserted and stores it in the on-media key. Reads
+validate the CRC before copying to the caller.
+
+
+Failure handling
+================
+
+* *pmem media errors* – all metadata copies are read with
+ ``copy_mc_to_kernel``; an uncorrectable error logs and aborts initialisation.
+* *Cache full* – if no free segment can be found, writes return ``-EBUSY``;
+ dm-pcache retries internally (request deferral).
+* *System crash* – on attach, the driver replays ksets from *key_tail* to
+ rebuild the in-core trees; every segment’s generation guards against
+ use-after-free keys.
+
+
+Limitations & TODO
+==================
+
+* Only *write-back* mode; other modes planned.
+* Only FIFO cache invalidate; other (LRU, ARC...) planned.
+* Table reload is not supported currently.
+* Discard planned.
+
+
+Example workflow
+================
+
+.. code-block:: shell
+
+ # 1. Create devices
+ dmsetup create pcache_sdb --table \
+ "0 $(blockdev --getsz /dev/sdb) pcache /dev/pmem0 /dev/sdb 4 cache_mode writeback data_crc true"
+
+ # 2. Put a filesystem on top
+ mkfs.ext4 /dev/mapper/pcache_sdb
+ mount /dev/mapper/pcache_sdb /mnt
+
+ # 3. Tune GC threshold to 80 %
+ dmsetup message pcache_sdb 0 gc_percent 80
+
+ # 4. Observe status
+ watch -n1 'dmsetup status pcache_sdb'
+
+ # 5. Shutdown
+ umount /mnt
+ dmsetup remove pcache_sdb
+
+
+``dm-pcache`` is under active development; feedback, bug reports and patches
+are very welcome!
diff --git a/Documentation/admin-guide/device-mapper/index.rst b/Documentation/admin-guide/device-mapper/index.rst
index cde52cc09645..f1c1f4b824ba 100644
--- a/Documentation/admin-guide/device-mapper/index.rst
+++ b/Documentation/admin-guide/device-mapper/index.rst
@@ -18,6 +18,7 @@ Device Mapper
dm-integrity
dm-io
dm-log
+ dm-pcache
dm-queue-length
dm-raid
dm-service-time
@@ -34,6 +35,8 @@ Device Mapper
switch
thin-provisioning
unstriped
+ vdo-design
+ vdo
verity
writecache
zero
diff --git a/Documentation/admin-guide/device-mapper/thin-provisioning.rst b/Documentation/admin-guide/device-mapper/thin-provisioning.rst
index bafebf79da4b..b2fa49a5608a 100644
--- a/Documentation/admin-guide/device-mapper/thin-provisioning.rst
+++ b/Documentation/admin-guide/device-mapper/thin-provisioning.rst
@@ -80,11 +80,11 @@ less sharing than average you'll need a larger-than-average metadata device.
As a guide, we suggest you calculate the number of bytes to use in the
metadata device as 48 * $data_dev_size / $data_block_size but round it up
-to 2MB if the answer is smaller. If you're creating large numbers of
+to 2MiB if the answer is smaller. If you're creating large numbers of
snapshots which are recording large amounts of change, you may find you
need to increase this.
-The largest size supported is 16GB: If the device is larger,
+The largest size supported is 16GiB: If the device is larger,
a warning will be issued and the excess space will not be used.
Reloading a pool table
@@ -107,13 +107,13 @@ Using an existing pool device
$data_block_size gives the smallest unit of disk space that can be
allocated at a time expressed in units of 512-byte sectors.
-$data_block_size must be between 128 (64KB) and 2097152 (1GB) and a
-multiple of 128 (64KB). $data_block_size cannot be changed after the
+$data_block_size must be between 128 (64KiB) and 2097152 (1GiB) and a
+multiple of 128 (64KiB). $data_block_size cannot be changed after the
thin-pool is created. People primarily interested in thin provisioning
-may want to use a value such as 1024 (512KB). People doing lots of
-snapshotting may want a smaller value such as 128 (64KB). If you are
+may want to use a value such as 1024 (512KiB). People doing lots of
+snapshotting may want a smaller value such as 128 (64KiB). If you are
not zeroing newly-allocated data, a larger $data_block_size in the
-region of 256000 (128MB) is suggested.
+region of 262144 (128MiB) is suggested.
$low_water_mark is expressed in blocks of size $data_block_size. If
free space on the data device drops below this level then a dm event
@@ -291,7 +291,7 @@ i) Constructor
error_if_no_space:
Error IOs, instead of queueing, if no space.
- Data block size must be between 64KB (128 sectors) and 1GB
+ Data block size must be between 64KiB (128 sectors) and 1GiB
(2097152 sectors) inclusive.
diff --git a/Documentation/admin-guide/device-mapper/vdo-design.rst b/Documentation/admin-guide/device-mapper/vdo-design.rst
new file mode 100644
index 000000000000..faa0ecd4a5ae
--- /dev/null
+++ b/Documentation/admin-guide/device-mapper/vdo-design.rst
@@ -0,0 +1,633 @@
+.. SPDX-License-Identifier: GPL-2.0-only
+
+================
+Design of dm-vdo
+================
+
+The dm-vdo (virtual data optimizer) target provides inline deduplication,
+compression, zero-block elimination, and thin provisioning. A dm-vdo target
+can be backed by up to 256TB of storage, and can present a logical size of
+up to 4PB. This target was originally developed at Permabit Technology
+Corp. starting in 2009. It was first released in 2013 and has been used in
+production environments ever since. It was made open-source in 2017 after
+Permabit was acquired by Red Hat. This document describes the design of
+dm-vdo. For usage, see vdo.rst in the same directory as this file.
+
+Because deduplication rates fall drastically as the block size increases, a
+vdo target has a maximum block size of 4K. However, it can achieve
+deduplication rates of 254:1, i.e. up to 254 copies of a given 4K block can
+reference a single 4K of actual storage. It can achieve compression rates
+of 14:1. All zero blocks consume no storage at all.
+
+Theory of Operation
+===================
+
+The design of dm-vdo is based on the idea that deduplication is a two-part
+problem. The first is to recognize duplicate data. The second is to avoid
+storing multiple copies of those duplicates. Therefore, dm-vdo has two main
+parts: a deduplication index (called UDS) that is used to discover
+duplicate data, and a data store with a reference counted block map that
+maps from logical block addresses to the actual storage location of the
+data.
+
+Zones and Threading
+-------------------
+
+Due to the complexity of data optimization, the number of metadata
+structures involved in a single write operation to a vdo target is larger
+than most other targets. Furthermore, because vdo must operate on small
+block sizes in order to achieve good deduplication rates, acceptable
+performance can only be achieved through parallelism. Therefore, vdo's
+design attempts to be lock-free.
+
+Most of a vdo's main data structures are designed to be easily divided into
+"zones" such that any given bio must only access a single zone of any zoned
+structure. Safety with minimal locking is achieved by ensuring that during
+normal operation, each zone is assigned to a specific thread, and only that
+thread will access the portion of the data structure in that zone.
+Associated with each thread is a work queue. Each bio is associated with a
+request object (the "data_vio") which will be added to a work queue when
+the next phase of its operation requires access to the structures in the
+zone associated with that queue.
+
+Another way of thinking about this arrangement is that the work queue for
+each zone has an implicit lock on the structures it manages for all its
+operations, because vdo guarantees that no other thread will alter those
+structures.
+
+Although each structure is divided into zones, this division is not
+reflected in the on-disk representation of each data structure. Therefore,
+the number of zones for each structure, and hence the number of threads,
+can be reconfigured each time a vdo target is started.
+
+The Deduplication Index
+-----------------------
+
+In order to identify duplicate data efficiently, vdo was designed to
+leverage some common characteristics of duplicate data. From empirical
+observations, we gathered two key insights. The first is that in most data
+sets with significant amounts of duplicate data, the duplicates tend to
+have temporal locality. When a duplicate appears, it is more likely that
+other duplicates will be detected, and that those duplicates will have been
+written at about the same time. This is why the index keeps records in
+temporal order. The second insight is that new data is more likely to
+duplicate recent data than it is to duplicate older data and in general,
+there are diminishing returns to looking further back in time. Therefore,
+when the index is full, it should cull its oldest records to make space for
+new ones. Another important idea behind the design of the index is that the
+ultimate goal of deduplication is to reduce storage costs. Since there is a
+trade-off between the storage saved and the resources expended to achieve
+those savings, vdo does not attempt to find every last duplicate block. It
+is sufficient to find and eliminate most of the redundancy.
+
+Each block of data is hashed to produce a 16-byte block name. An index
+record consists of this block name paired with the presumed location of
+that data on the underlying storage. However, it is not possible to
+guarantee that the index is accurate. In the most common case, this occurs
+because it is too costly to update the index when a block is over-written
+or discarded. Doing so would require either storing the block name along
+with the blocks, which is difficult to do efficiently in block-based
+storage, or reading and rehashing each block before overwriting it.
+Inaccuracy can also result from a hash collision where two different blocks
+have the same name. In practice, this is extremely unlikely, but because
+vdo does not use a cryptographic hash, a malicious workload could be
+constructed. Because of these inaccuracies, vdo treats the locations in the
+index as hints, and reads each indicated block to verify that it is indeed
+a duplicate before sharing the existing block with a new one.
+
+Records are collected into groups called chapters. New records are added to
+the newest chapter, called the open chapter. This chapter is stored in a
+format optimized for adding and modifying records, and the content of the
+open chapter is not finalized until it runs out of space for new records.
+When the open chapter fills up, it is closed and a new open chapter is
+created to collect new records.
+
+Closing a chapter converts it to a different format which is optimized for
+reading. The records are written to a series of record pages based on the
+order in which they were received. This means that records with temporal
+locality should be on a small number of pages, reducing the I/O required to
+retrieve them. The chapter also compiles an index that indicates which
+record page contains any given name. This index means that a request for a
+name can determine exactly which record page may contain that record,
+without having to load the entire chapter from storage. This index uses
+only a subset of the block name as its key, so it cannot guarantee that an
+index entry refers to the desired block name. It can only guarantee that if
+there is a record for this name, it will be on the indicated page. Closed
+chapters are read-only structures and their contents are never altered in
+any way.
+
+Once enough records have been written to fill up all the available index
+space, the oldest chapter is removed to make space for new chapters. Any
+time a request finds a matching record in the index, that record is copied
+into the open chapter. This ensures that useful block names remain available
+in the index, while unreferenced block names are forgotten over time.
+
+In order to find records in older chapters, the index also maintains a
+higher level structure called the volume index, which contains entries
+mapping each block name to the chapter containing its newest record. This
+mapping is updated as records for the block name are copied or updated,
+ensuring that only the newest record for a given block name can be found.
+An older record for a block name will no longer be found even though it has
+not been deleted from its chapter. Like the chapter index, the volume index
+uses only a subset of the block name as its key and can not definitively
+say that a record exists for a name. It can only say which chapter would
+contain the record if a record exists. The volume index is stored entirely
+in memory and is saved to storage only when the vdo target is shut down.
+
+From the viewpoint of a request for a particular block name, it will first
+look up the name in the volume index. This search will either indicate that
+the name is new, or which chapter to search. If it returns a chapter, the
+request looks up its name in the chapter index. This will indicate either
+that the name is new, or which record page to search. Finally, if it is not
+new, the request will look for its name in the indicated record page.
+This process may require up to two page reads per request (one for the
+chapter index page and one for the request page). However, recently
+accessed pages are cached so that these page reads can be amortized across
+many block name requests.
+
+The volume index and the chapter indexes are implemented using a
+memory-efficient structure called a delta index. Instead of storing the
+entire block name (the key) for each entry, the entries are sorted by name
+and only the difference between adjacent keys (the delta) is stored.
+Because we expect the hashes to be randomly distributed, the size of the
+deltas follows an exponential distribution. Because of this distribution,
+the deltas are expressed using a Huffman code to take up even less space.
+The entire sorted list of keys is called a delta list. This structure
+allows the index to use many fewer bytes per entry than a traditional hash
+table, but it is slightly more expensive to look up entries, because a
+request must read every entry in a delta list to add up the deltas in order
+to find the record it needs. The delta index reduces this lookup cost by
+splitting its key space into many sub-lists, each starting at a fixed key
+value, so that each individual list is short.
+
+The default index size can hold 64 million records, corresponding to about
+256GB of data. This means that the index can identify duplicate data if the
+original data was written within the last 256GB of writes. This range is
+called the deduplication window. If new writes duplicate data that is older
+than that, the index will not be able to find it because the records of the
+older data have been removed. This means that if an application writes a
+200 GB file to a vdo target and then immediately writes it again, the two
+copies will deduplicate perfectly. Doing the same with a 500 GB file will
+result in no deduplication, because the beginning of the file will no
+longer be in the index by the time the second write begins (assuming there
+is no duplication within the file itself).
+
+If an application anticipates a data workload that will see useful
+deduplication beyond the 256GB threshold, vdo can be configured to use a
+larger index with a correspondingly larger deduplication window. (This
+configuration can only be set when the target is created, not altered
+later. It is important to consider the expected workload for a vdo target
+before configuring it.) There are two ways to do this.
+
+One way is to increase the memory size of the index, which also increases
+the amount of backing storage required. Doubling the size of the index will
+double the length of the deduplication window at the expense of doubling
+the storage size and the memory requirements.
+
+The other option is to enable sparse indexing. Sparse indexing increases
+the deduplication window by a factor of 10, at the expense of also
+increasing the storage size by a factor of 10. However with sparse
+indexing, the memory requirements do not increase. The trade-off is
+slightly more computation per request and a slight decrease in the amount
+of deduplication detected. For most workloads with significant amounts of
+duplicate data, sparse indexing will detect 97-99% of the deduplication
+that a standard index will detect.
+
+The vio and data_vio Structures
+-------------------------------
+
+A vio (short for Vdo I/O) is conceptually similar to a bio, with additional
+fields and data to track vdo-specific information. A struct vio maintains a
+pointer to a bio but also tracks other fields specific to the operation of
+vdo. The vio is kept separate from its related bio because there are many
+circumstances where vdo completes the bio but must continue to do work
+related to deduplication or compression.
+
+Metadata reads and writes, and other writes that originate within vdo, use
+a struct vio directly. Application reads and writes use a larger structure
+called a data_vio to track information about their progress. A struct
+data_vio contain a struct vio and also includes several other fields
+related to deduplication and other vdo features. The data_vio is the
+primary unit of application work in vdo. Each data_vio proceeds through a
+set of steps to handle the application data, after which it is reset and
+returned to a pool of data_vios for reuse.
+
+There is a fixed pool of 2048 data_vios. This number was chosen to bound
+the amount of work that is required to recover from a crash. In addition,
+benchmarks have indicated that increasing the size of the pool does not
+significantly improve performance.
+
+The Data Store
+--------------
+
+The data store is implemented by three main data structures, all of which
+work in concert to reduce or amortize metadata updates across as many data
+writes as possible.
+
+*The Slab Depot*
+
+Most of the vdo volume belongs to the slab depot. The depot contains a
+collection of slabs. The slabs can be up to 32GB, and are divided into
+three sections. Most of a slab consists of a linear sequence of 4K blocks.
+These blocks are used either to store data, or to hold portions of the
+block map (see below). In addition to the data blocks, each slab has a set
+of reference counters, using 1 byte for each data block. Finally each slab
+has a journal.
+
+Reference updates are written to the slab journal. Slab journal blocks are
+written out either when they are full, or when the recovery journal
+requests they do so in order to allow the main recovery journal (see below)
+to free up space. The slab journal is used both to ensure that the main
+recovery journal can regularly free up space, and also to amortize the cost
+of updating individual reference blocks. The reference counters are kept in
+memory and are written out, a block at a time in oldest-dirtied-order, only
+when there is a need to reclaim slab journal space. The write operations
+are performed in the background as needed so they do not add latency to
+particular I/O operations.
+
+Each slab is independent of every other. They are assigned to "physical
+zones" in round-robin fashion. If there are P physical zones, then slab n
+is assigned to zone n mod P.
+
+The slab depot maintains an additional small data structure, the "slab
+summary," which is used to reduce the amount of work needed to come back
+online after a crash. The slab summary maintains an entry for each slab
+indicating whether or not the slab has ever been used, whether all of its
+reference count updates have been persisted to storage, and approximately
+how full it is. During recovery, each physical zone will attempt to recover
+at least one slab, stopping whenever it has recovered a slab which has some
+free blocks. Once each zone has some space, or has determined that none is
+available, the target can resume normal operation in a degraded mode. Read
+and write requests can be serviced, perhaps with degraded performance,
+while the remainder of the dirty slabs are recovered.
+
+*The Block Map*
+
+The block map contains the logical to physical mapping. It can be thought
+of as an array with one entry per logical address. Each entry is 5 bytes,
+36 bits of which contain the physical block number which holds the data for
+the given logical address. The other 4 bits are used to indicate the nature
+of the mapping. Of the 16 possible states, one represents a logical address
+which is unmapped (i.e. it has never been written, or has been discarded),
+one represents an uncompressed block, and the other 14 states are used to
+indicate that the mapped data is compressed, and which of the compression
+slots in the compressed block contains the data for this logical address.
+
+In practice, the array of mapping entries is divided into "block map
+pages," each of which fits in a single 4K block. Each block map page
+consists of a header and 812 mapping entries. Each mapping page is actually
+a leaf of a radix tree which consists of block map pages at each level.
+There are 60 radix trees which are assigned to "logical zones" in round
+robin fashion. (If there are L logical zones, tree n will belong to zone n
+mod L.) At each level, the trees are interleaved, so logical addresses
+0-811 belong to tree 0, logical addresses 812-1623 belong to tree 1, and so
+on. The interleaving is maintained all the way up to the 60 root nodes.
+Choosing 60 trees results in an evenly distributed number of trees per zone
+for a large number of possible logical zone counts. The storage for the 60
+tree roots is allocated at format time. All other block map pages are
+allocated out of the slabs as needed. This flexible allocation avoids the
+need to pre-allocate space for the entire set of logical mappings and also
+makes growing the logical size of a vdo relatively easy.
+
+In operation, the block map maintains two caches. It is prohibitive to keep
+the entire leaf level of the trees in memory, so each logical zone
+maintains its own cache of leaf pages. The size of this cache is
+configurable at target start time. The second cache is allocated at start
+time, and is large enough to hold all the non-leaf pages of the entire
+block map. This cache is populated as pages are needed.
+
+*The Recovery Journal*
+
+The recovery journal is used to amortize updates across the block map and
+slab depot. Each write request causes an entry to be made in the journal.
+Entries are either "data remappings" or "block map remappings." For a data
+remapping, the journal records the logical address affected and its old and
+new physical mappings. For a block map remapping, the journal records the
+block map page number and the physical block allocated for it. Block map
+pages are never reclaimed or repurposed, so the old mapping is always 0.
+
+Each journal entry is an intent record summarizing the metadata updates
+that are required for a data_vio. The recovery journal issues a flush
+before each journal block write to ensure that the physical data for the
+new block mappings in that block are stable on storage, and journal block
+writes are all issued with the FUA bit set to ensure the recovery journal
+entries themselves are stable. The journal entry and the data write it
+represents must be stable on disk before the other metadata structures may
+be updated to reflect the operation. These entries allow the vdo device to
+reconstruct the logical to physical mappings after an unexpected
+interruption such as a loss of power.
+
+*Write Path*
+
+All write I/O to vdo is asynchronous. Each bio will be acknowledged as soon
+as vdo has done enough work to guarantee that it can complete the write
+eventually. Generally, the data for acknowledged but unflushed write I/O
+can be treated as though it is cached in memory. If an application
+requires data to be stable on storage, it must issue a flush or write the
+data with the FUA bit set like any other asynchronous I/O. Shutting down
+the vdo target will also flush any remaining I/O.
+
+Application write bios follow the steps outlined below.
+
+1. A data_vio is obtained from the data_vio pool and associated with the
+ application bio. If there are no data_vios available, the incoming bio
+ will block until a data_vio is available. This provides back pressure
+ to the application. The data_vio pool is protected by a spin lock.
+
+ The newly acquired data_vio is reset and the bio's data is copied into
+ the data_vio if it is a write and the data is not all zeroes. The data
+ must be copied because the application bio can be acknowledged before
+ the data_vio processing is complete, which means later processing steps
+ will no longer have access to the application bio. The application bio
+ may also be smaller than 4K, in which case the data_vio will have
+ already read the underlying block and the data is instead copied over
+ the relevant portion of the larger block.
+
+2. The data_vio places a claim (the "logical lock") on the logical address
+ of the bio. It is vital to prevent simultaneous modifications of the
+ same logical address, because deduplication involves sharing blocks.
+ This claim is implemented as an entry in a hashtable where the key is
+ the logical address and the value is a pointer to the data_vio
+ currently handling that address.
+
+ If a data_vio looks in the hashtable and finds that another data_vio is
+ already operating on that logical address, it waits until the previous
+ operation finishes. It also sends a message to inform the current
+ lock holder that it is waiting. Most notably, a new data_vio waiting
+ for a logical lock will flush the previous lock holder out of the
+ compression packer (step 8d) rather than allowing it to continue
+ waiting to be packed.
+
+ This stage requires the data_vio to get an implicit lock on the
+ appropriate logical zone to prevent concurrent modifications of the
+ hashtable. This implicit locking is handled by the zone divisions
+ described above.
+
+3. The data_vio traverses the block map tree to ensure that all the
+ necessary internal tree nodes have been allocated, by trying to find
+ the leaf page for its logical address. If any interior tree page is
+ missing, it is allocated at this time out of the same physical storage
+ pool used to store application data.
+
+ a. If any page-node in the tree has not yet been allocated, it must be
+ allocated before the write can continue. This step requires the
+ data_vio to lock the page-node that needs to be allocated. This
+ lock, like the logical block lock in step 2, is a hashtable entry
+ that causes other data_vios to wait for the allocation process to
+ complete.
+
+ The implicit logical zone lock is released while the allocation is
+ happening, in order to allow other operations in the same logical
+ zone to proceed. The details of allocation are the same as in
+ step 4. Once a new node has been allocated, that node is added to
+ the tree using a similar process to adding a new data block mapping.
+ The data_vio journals the intent to add the new node to the block
+ map tree (step 10), updates the reference count of the new block
+ (step 11), and reacquires the implicit logical zone lock to add the
+ new mapping to the parent tree node (step 12). Once the tree is
+ updated, the data_vio proceeds down the tree. Any other data_vios
+ waiting on this allocation also proceed.
+
+ b. In the steady-state case, the block map tree nodes will already be
+ allocated, so the data_vio just traverses the tree until it finds
+ the required leaf node. The location of the mapping (the "block map
+ slot") is recorded in the data_vio so that later steps do not need
+ to traverse the tree again. The data_vio then releases the implicit
+ logical zone lock.
+
+4. If the block is a zero block, skip to step 9. Otherwise, an attempt is
+ made to allocate a free data block. This allocation ensures that the
+ data_vio can write its data somewhere even if deduplication and
+ compression are not possible. This stage gets an implicit lock on a
+ physical zone to search for free space within that zone.
+
+ The data_vio will search each slab in a zone until it finds a free
+ block or decides there are none. If the first zone has no free space,
+ it will proceed to search the next physical zone by taking the implicit
+ lock for that zone and releasing the previous one until it finds a
+ free block or runs out of zones to search. The data_vio will acquire a
+ struct pbn_lock (the "physical block lock") on the free block. The
+ struct pbn_lock also has several fields to record the various kinds of
+ claims that data_vios can have on physical blocks. The pbn_lock is
+ added to a hashtable like the logical block locks in step 2. This
+ hashtable is also covered by the implicit physical zone lock. The
+ reference count of the free block is updated to prevent any other
+ data_vio from considering it free. The reference counters are a
+ sub-component of the slab and are thus also covered by the implicit
+ physical zone lock.
+
+5. If an allocation was obtained, the data_vio has all the resources it
+ needs to complete the write. The application bio can safely be
+ acknowledged at this point. The acknowledgment happens on a separate
+ thread to prevent the application callback from blocking other data_vio
+ operations.
+
+ If an allocation could not be obtained, the data_vio continues to
+ attempt to deduplicate or compress the data, but the bio is not
+ acknowledged because the vdo device may be out of space.
+
+6. At this point vdo must determine where to store the application data.
+ The data_vio's data is hashed and the hash (the "record name") is
+ recorded in the data_vio.
+
+7. The data_vio reserves or joins a struct hash_lock, which manages all of
+ the data_vios currently writing the same data. Active hash locks are
+ tracked in a hashtable similar to the way logical block locks are
+ tracked in step 2. This hashtable is covered by the implicit lock on
+ the hash zone.
+
+ If there is no existing hash lock for this data_vio's record_name, the
+ data_vio obtains a hash lock from the pool, adds it to the hashtable,
+ and sets itself as the new hash lock's "agent." The hash_lock pool is
+ also covered by the implicit hash zone lock. The hash lock agent will
+ do all the work to decide where the application data will be
+ written. If a hash lock for the data_vio's record_name already exists,
+ and the data_vio's data is the same as the agent's data, the new
+ data_vio will wait for the agent to complete its work and then share
+ its result.
+
+ In the rare case that a hash lock exists for the data_vio's hash but
+ the data does not match the hash lock's agent, the data_vio skips to
+ step 8h and attempts to write its data directly. This can happen if two
+ different data blocks produce the same hash, for example.
+
+8. The hash lock agent attempts to deduplicate or compress its data with
+ the following steps.
+
+ a. The agent initializes and sends its embedded deduplication request
+ (struct uds_request) to the deduplication index. This does not
+ require the data_vio to get any locks because the index components
+ manage their own locking. The data_vio waits until it either gets a
+ response from the index or times out.
+
+ b. If the deduplication index returns advice, the data_vio attempts to
+ obtain a physical block lock on the indicated physical address, in
+ order to read the data and verify that it is the same as the
+ data_vio's data, and that it can accept more references. If the
+ physical address is already locked by another data_vio, the data at
+ that address may soon be overwritten so it is not safe to use the
+ address for deduplication.
+
+ c. If the data matches and the physical block can add references, the
+ agent and any other data_vios waiting on it will record this
+ physical block as their new physical address and proceed to step 9
+ to record their new mapping. If there are more data_vios in the hash
+ lock than there are references available, one of the remaining
+ data_vios becomes the new agent and continues to step 8d as if no
+ valid advice was returned.
+
+ d. If no usable duplicate block was found, the agent first checks that
+ it has an allocated physical block (from step 3) that it can write
+ to. If the agent does not have an allocation, some other data_vio in
+ the hash lock that does have an allocation takes over as agent. If
+ none of the data_vios have an allocated physical block, these writes
+ are out of space, so they proceed to step 13 for cleanup.
+
+ e. The agent attempts to compress its data. If the data does not
+ compress, the data_vio will continue to step 8h to write its data
+ directly.
+
+ If the compressed size is small enough, the agent will release the
+ implicit hash zone lock and go to the packer (struct packer) where
+ it will be placed in a bin (struct packer_bin) along with other
+ data_vios. All compression operations require the implicit lock on
+ the packer zone.
+
+ The packer can combine up to 14 compressed blocks in a single 4k
+ data block. Compression is only helpful if vdo can pack at least 2
+ data_vios into a single data block. This means that a data_vio may
+ wait in the packer for an arbitrarily long time for other data_vios
+ to fill out the compressed block. There is a mechanism for vdo to
+ evict waiting data_vios when continuing to wait would cause
+ problems. Circumstances causing an eviction include an application
+ flush, device shutdown, or a subsequent data_vio trying to overwrite
+ the same logical block address. A data_vio may also be evicted from
+ the packer if it cannot be paired with any other compressed block
+ before more compressible blocks need to use its bin. An evicted
+ data_vio will proceed to step 8h to write its data directly.
+
+ f. If the agent fills a packer bin, either because all 14 of its slots
+ are used or because it has no remaining space, it is written out
+ using the allocated physical block from one of its data_vios. Step
+ 8d has already ensured that an allocation is available.
+
+ g. Each data_vio sets the compressed block as its new physical address.
+ The data_vio obtains an implicit lock on the physical zone and
+ acquires the struct pbn_lock for the compressed block, which is
+ modified to be a shared lock. Then it releases the implicit physical
+ zone lock and proceeds to step 8i.
+
+ h. Any data_vio evicted from the packer will have an allocation from
+ step 3. It will write its data to that allocated physical block.
+
+ i. After the data is written, if the data_vio is the agent of a hash
+ lock, it will reacquire the implicit hash zone lock and share its
+ physical address with as many other data_vios in the hash lock as
+ possible. Each data_vio will then proceed to step 9 to record its
+ new mapping.
+
+ j. If the agent actually wrote new data (whether compressed or not),
+ the deduplication index is updated to reflect the location of the
+ new data. The agent then releases the implicit hash zone lock.
+
+9. The data_vio determines the previous mapping of the logical address.
+ There is a cache for block map leaf pages (the "block map cache"),
+ because there are usually too many block map leaf nodes to store
+ entirely in memory. If the desired leaf page is not in the cache, the
+ data_vio will reserve a slot in the cache and load the desired page
+ into it, possibly evicting an older cached page. The data_vio then
+ finds the current physical address for this logical address (the "old
+ physical mapping"), if any, and records it. This step requires a lock
+ on the block map cache structures, covered by the implicit logical zone
+ lock.
+
+10. The data_vio makes an entry in the recovery journal containing the
+ logical block address, the old physical mapping, and the new physical
+ mapping. Making this journal entry requires holding the implicit
+ recovery journal lock. The data_vio will wait in the journal until all
+ recovery blocks up to the one containing its entry have been written
+ and flushed to ensure the transaction is stable on storage.
+
+11. Once the recovery journal entry is stable, the data_vio makes two slab
+ journal entries: an increment entry for the new mapping, and a
+ decrement entry for the old mapping. These two operations each require
+ holding a lock on the affected physical slab, covered by its implicit
+ physical zone lock. For correctness during recovery, the slab journal
+ entries in any given slab journal must be in the same order as the
+ corresponding recovery journal entries. Therefore, if the two entries
+ are in different zones, they are made concurrently, and if they are in
+ the same zone, the increment is always made before the decrement in
+ order to avoid underflow. After each slab journal entry is made in
+ memory, the associated reference count is also updated in memory.
+
+12. Once both of the reference count updates are done, the data_vio
+ acquires the implicit logical zone lock and updates the
+ logical-to-physical mapping in the block map to point to the new
+ physical block. At this point the write operation is complete.
+
+13. If the data_vio has a hash lock, it acquires the implicit hash zone
+ lock and releases its hash lock to the pool.
+
+ The data_vio then acquires the implicit physical zone lock and releases
+ the struct pbn_lock it holds for its allocated block. If it had an
+ allocation that it did not use, it also sets the reference count for
+ that block back to zero to free it for use by subsequent data_vios.
+
+ The data_vio then acquires the implicit logical zone lock and releases
+ the logical block lock acquired in step 2.
+
+ The application bio is then acknowledged if it has not previously been
+ acknowledged, and the data_vio is returned to the pool.
+
+*Read Path*
+
+An application read bio follows a much simpler set of steps. It does steps
+1 and 2 in the write path to obtain a data_vio and lock its logical
+address. If there is already a write data_vio in progress for that logical
+address that is guaranteed to complete, the read data_vio will copy the
+data from the write data_vio and return it. Otherwise, it will look up the
+logical-to-physical mapping by traversing the block map tree as in step 3,
+and then read and possibly decompress the indicated data at the indicated
+physical block address. A read data_vio will not allocate block map tree
+nodes if they are missing. If the interior block map nodes do not exist
+yet, the logical block map address must still be unmapped and the read
+data_vio will return all zeroes. A read data_vio handles cleanup and
+acknowledgment as in step 13, although it only needs to release the logical
+lock and return itself to the pool.
+
+*Small Writes*
+
+All storage within vdo is managed as 4KB blocks, but it can accept writes
+as small as 512 bytes. Processing a write that is smaller than 4K requires
+a read-modify-write operation that reads the relevant 4K block, copies the
+new data over the appropriate sectors of the block, and then launches a
+write operation for the modified data block. The read and write stages of
+this operation are nearly identical to the normal read and write
+operations, and a single data_vio is used throughout this operation.
+
+*Recovery*
+
+When a vdo is restarted after a crash, it will attempt to recover from the
+recovery journal. During the pre-resume phase of the next start, the
+recovery journal is read. The increment portion of valid entries are played
+into the block map. Next, valid entries are played, in order as required,
+into the slab journals. Finally, each physical zone attempts to replay at
+least one slab journal to reconstruct the reference counts of one slab.
+Once each zone has some free space (or has determined that it has none),
+the vdo comes back online, while the remainder of the slab journals are
+used to reconstruct the rest of the reference counts in the background.
+
+*Read-only Rebuild*
+
+If a vdo encounters an unrecoverable error, it will enter read-only mode.
+This mode indicates that some previously acknowledged data may have been
+lost. The vdo may be instructed to rebuild as best it can in order to
+return to a writable state. However, this is never done automatically due
+to the possibility that data has been lost. During a read-only rebuild, the
+block map is recovered from the recovery journal as before. However, the
+reference counts are not rebuilt from the slab journals. Instead, the
+reference counts are zeroed, the entire block map is traversed, and the
+reference counts are updated from the block mappings. While this may lose
+some data, it ensures that the block map and reference counts are
+consistent with each other. This allows vdo to resume normal operation and
+accept further writes.
diff --git a/Documentation/admin-guide/device-mapper/vdo.rst b/Documentation/admin-guide/device-mapper/vdo.rst
new file mode 100644
index 000000000000..8a67b320a97b
--- /dev/null
+++ b/Documentation/admin-guide/device-mapper/vdo.rst
@@ -0,0 +1,413 @@
+.. SPDX-License-Identifier: GPL-2.0-only
+
+======
+dm-vdo
+======
+
+The dm-vdo (virtual data optimizer) device mapper target provides
+block-level deduplication, compression, and thin provisioning. As a device
+mapper target, it can add these features to the storage stack, compatible
+with any file system. The vdo target does not protect against data
+corruption, relying instead on integrity protection of the storage below
+it. It is strongly recommended that lvm be used to manage vdo volumes. See
+lvmvdo(7).
+
+Userspace component
+===================
+
+Formatting a vdo volume requires the use of the 'vdoformat' tool, available
+at:
+
+https://github.com/dm-vdo/vdo/
+
+In most cases, a vdo target will recover from a crash automatically the
+next time it is started. In cases where it encountered an unrecoverable
+error (either during normal operation or crash recovery) the target will
+enter or come up in read-only mode. Because read-only mode is indicative of
+data-loss, a positive action must be taken to bring vdo out of read-only
+mode. The 'vdoforcerebuild' tool, available from the same repo, is used to
+prepare a read-only vdo to exit read-only mode. After running this tool,
+the vdo target will rebuild its metadata the next time it is
+started. Although some data may be lost, the rebuilt vdo's metadata will be
+internally consistent and the target will be writable again.
+
+The repo also contains additional userspace tools which can be used to
+inspect a vdo target's on-disk metadata. Fortunately, these tools are
+rarely needed except by dm-vdo developers.
+
+Metadata requirements
+=====================
+
+Each vdo volume reserves 3GB of space for metadata, or more depending on
+its configuration. It is helpful to check that the space saved by
+deduplication and compression is not cancelled out by the metadata
+requirements. An estimation of the space saved for a specific dataset can
+be computed with the vdo estimator tool, which is available at:
+
+https://github.com/dm-vdo/vdoestimator/
+
+Target interface
+================
+
+Table line
+----------
+
+::
+
+ <offset> <logical device size> vdo V4 <storage device>
+ <storage device size> <minimum I/O size> <block map cache size>
+ <block map era length> [optional arguments]
+
+
+Required parameters:
+
+ offset:
+ The offset, in sectors, at which the vdo volume's logical
+ space begins.
+
+ logical device size:
+ The size of the device which the vdo volume will service,
+ in sectors. Must match the current logical size of the vdo
+ volume.
+
+ storage device:
+ The device holding the vdo volume's data and metadata.
+
+ storage device size:
+ The size of the device holding the vdo volume, as a number
+ of 4096-byte blocks. Must match the current size of the vdo
+ volume.
+
+ minimum I/O size:
+ The minimum I/O size for this vdo volume to accept, in
+ bytes. Valid values are 512 or 4096. The recommended value
+ is 4096.
+
+ block map cache size:
+ The size of the block map cache, as a number of 4096-byte
+ blocks. The minimum and recommended value is 32768 blocks.
+ If the logical thread count is non-zero, the cache size
+ must be at least 4096 blocks per logical thread.
+
+ block map era length:
+ The speed with which the block map cache writes out
+ modified block map pages. A smaller era length is likely to
+ reduce the amount of time spent rebuilding, at the cost of
+ increased block map writes during normal operation. The
+ maximum and recommended value is 16380; the minimum value
+ is 1.
+
+Optional parameters:
+--------------------
+Some or all of these parameters may be specified as <key> <value> pairs.
+
+Thread related parameters:
+
+Different categories of work are assigned to separate thread groups, and
+the number of threads in each group can be configured separately.
+
+If <hash>, <logical>, and <physical> are all set to 0, the work handled by
+all three thread types will be handled by a single thread. If any of these
+values are non-zero, all of them must be non-zero.
+
+ ack:
+ The number of threads used to complete bios. Since
+ completing a bio calls an arbitrary completion function
+ outside the vdo volume, threads of this type allow the vdo
+ volume to continue processing requests even when bio
+ completion is slow. The default is 1.
+
+ bio:
+ The number of threads used to issue bios to the underlying
+ storage. Threads of this type allow the vdo volume to
+ continue processing requests even when bio submission is
+ slow. The default is 4.
+
+ bioRotationInterval:
+ The number of bios to enqueue on each bio thread before
+ switching to the next thread. The value must be greater
+ than 0 and not more than 1024; the default is 64.
+
+ cpu:
+ The number of threads used to do CPU-intensive work, such
+ as hashing and compression. The default is 1.
+
+ hash:
+ The number of threads used to manage data comparisons for
+ deduplication based on the hash value of data blocks. The
+ default is 0.
+
+ logical:
+ The number of threads used to manage caching and locking
+ based on the logical address of incoming bios. The default
+ is 0; the maximum is 60.
+
+ physical:
+ The number of threads used to manage administration of the
+ underlying storage device. At format time, a slab size for
+ the vdo is chosen; the vdo storage device must be large
+ enough to have at least 1 slab per physical thread. The
+ default is 0; the maximum is 16.
+
+Miscellaneous parameters:
+
+ maxDiscard:
+ The maximum size of discard bio accepted, in 4096-byte
+ blocks. I/O requests to a vdo volume are normally split
+ into 4096-byte blocks, and processed up to 2048 at a time.
+ However, discard requests to a vdo volume can be
+ automatically split to a larger size, up to <maxDiscard>
+ 4096-byte blocks in a single bio, and are limited to 1500
+ at a time. Increasing this value may provide better overall
+ performance, at the cost of increased latency for the
+ individual discard requests. The default and minimum is 1;
+ the maximum is UINT_MAX / 4096.
+
+ deduplication:
+ Whether deduplication is enabled. The default is 'on'; the
+ acceptable values are 'on' and 'off'.
+
+ compression:
+ Whether compression is enabled. The default is 'off'; the
+ acceptable values are 'on' and 'off'.
+
+Device modification
+-------------------
+
+A modified table may be loaded into a running, non-suspended vdo volume.
+The modifications will take effect when the device is next resumed. The
+modifiable parameters are <logical device size>, <physical device size>,
+<maxDiscard>, <compression>, and <deduplication>.
+
+If the logical device size or physical device size are changed, upon
+successful resume vdo will store the new values and require them on future
+startups. These two parameters may not be decreased. The logical device
+size may not exceed 4 PB. The physical device size must increase by at
+least 32832 4096-byte blocks if at all, and must not exceed the size of the
+underlying storage device. Additionally, when formatting the vdo device, a
+slab size is chosen: the physical device size may never increase above the
+size which provides 8192 slabs, and each increase must be large enough to
+add at least one new slab.
+
+Examples:
+
+Start a previously-formatted vdo volume with 1 GB logical space and 1 GB
+physical space, storing to /dev/dm-1 which has more than 1 GB of space.
+
+::
+
+ dmsetup create vdo0 --table \
+ "0 2097152 vdo V4 /dev/dm-1 262144 4096 32768 16380"
+
+Grow the logical size to 4 GB.
+
+::
+
+ dmsetup reload vdo0 --table \
+ "0 8388608 vdo V4 /dev/dm-1 262144 4096 32768 16380"
+ dmsetup resume vdo0
+
+Grow the physical size to 2 GB.
+
+::
+
+ dmsetup reload vdo0 --table \
+ "0 8388608 vdo V4 /dev/dm-1 524288 4096 32768 16380"
+ dmsetup resume vdo0
+
+Grow the physical size by 1 GB more and increase max discard sectors.
+
+::
+
+ dmsetup reload vdo0 --table \
+ "0 10485760 vdo V4 /dev/dm-1 786432 4096 32768 16380 maxDiscard 8"
+ dmsetup resume vdo0
+
+Stop the vdo volume.
+
+::
+
+ dmsetup remove vdo0
+
+Start the vdo volume again. Note that the logical and physical device sizes
+must still match, but other parameters can change.
+
+::
+
+ dmsetup create vdo1 --table \
+ "0 10485760 vdo V4 /dev/dm-1 786432 512 65550 5000 hash 1 logical 3 physical 2"
+
+Messages
+--------
+All vdo devices accept messages in the form:
+
+::
+
+ dmsetup message <target-name> 0 <message-name> <message-parameters>
+
+The messages are:
+
+ stats:
+ Outputs the current view of the vdo statistics. Mostly used
+ by the vdostats userspace program to interpret the output
+ buffer.
+
+ config:
+ Outputs useful vdo configuration information. Mostly used
+ by users who want to recreate a similar VDO volume and
+ want to know the creation configuration used.
+
+ dump:
+ Dumps many internal structures to the system log. This is
+ not always safe to run, so it should only be used to debug
+ a hung vdo. Optional parameters to specify structures to
+ dump are:
+
+ viopool: The pool of I/O requests incoming bios
+ pools: A synonym of 'viopool'
+ vdo: Most of the structures managing on-disk data
+ queues: Basic information about each vdo thread
+ threads: A synonym of 'queues'
+ default: Equivalent to 'queues vdo'
+ all: All of the above.
+
+ dump-on-shutdown:
+ Perform a default dump next time vdo shuts down.
+
+
+Status
+------
+
+::
+
+ <device> <operating mode> <in recovery> <index state>
+ <compression state> <physical blocks used> <total physical blocks>
+
+ device:
+ The name of the vdo volume.
+
+ operating mode:
+ The current operating mode of the vdo volume; values may be
+ 'normal', 'recovering' (the volume has detected an issue
+ with its metadata and is attempting to repair itself), and
+ 'read-only' (an error has occurred that forces the vdo
+ volume to only support read operations and not writes).
+
+ in recovery:
+ Whether the vdo volume is currently in recovery mode;
+ values may be 'recovering' or '-' which indicates not
+ recovering.
+
+ index state:
+ The current state of the deduplication index in the vdo
+ volume; values may be 'closed', 'closing', 'error',
+ 'offline', 'online', 'opening', and 'unknown'.
+
+ compression state:
+ The current state of compression in the vdo volume; values
+ may be 'offline' and 'online'.
+
+ used physical blocks:
+ The number of physical blocks in use by the vdo volume.
+
+ total physical blocks:
+ The total number of physical blocks the vdo volume may use;
+ the difference between this value and the
+ <used physical blocks> is the number of blocks the vdo
+ volume has left before being full.
+
+Memory Requirements
+===================
+
+A vdo target requires a fixed 38 MB of RAM along with the following amounts
+that scale with the target:
+
+- 1.15 MB of RAM for each 1 MB of configured block map cache size. The
+ block map cache requires a minimum of 150 MB.
+- 1.6 MB of RAM for each 1 TB of logical space.
+- 268 MB of RAM for each 1 TB of physical storage managed by the volume.
+
+The deduplication index requires additional memory which scales with the
+size of the deduplication window. For dense indexes, the index requires 1
+GB of RAM per 1 TB of window. For sparse indexes, the index requires 1 GB
+of RAM per 10 TB of window. The index configuration is set when the target
+is formatted and may not be modified.
+
+Module Parameters
+=================
+
+The vdo driver has a numeric parameter 'log_level' which controls the
+verbosity of logging from the driver. The default setting is 6
+(LOGLEVEL_INFO and more severe messages).
+
+Run-time Usage
+==============
+
+When using dm-vdo, it is important to be aware of the ways in which its
+behavior differs from other storage targets.
+
+- There is no guarantee that over-writes of existing blocks will succeed.
+ Because the underlying storage may be multiply referenced, over-writing
+ an existing block generally requires a vdo to have a free block
+ available.
+
+- When blocks are no longer in use, sending a discard request for those
+ blocks lets the vdo release references for those blocks. If the vdo is
+ thinly provisioned, discarding unused blocks is essential to prevent the
+ target from running out of space. However, due to the sharing of
+ duplicate blocks, no discard request for any given logical block is
+ guaranteed to reclaim space.
+
+- Assuming the underlying storage properly implements flush requests, vdo
+ is resilient against crashes, however, unflushed writes may or may not
+ persist after a crash.
+
+- Each write to a vdo target entails a significant amount of processing.
+ However, much of the work is paralellizable. Therefore, vdo targets
+ achieve better throughput at higher I/O depths, and can support up 2048
+ requests in parallel.
+
+Tuning
+======
+
+The vdo device has many options, and it can be difficult to make optimal
+choices without perfect knowledge of the workload. Additionally, most
+configuration options must be set when a vdo target is started, and cannot
+be changed without shutting it down completely; the configuration cannot be
+changed while the target is active. Ideally, tuning with simulated
+workloads should be performed before deploying vdo in production
+environments.
+
+The most important value to adjust is the block map cache size. In order to
+service a request for any logical address, a vdo must load the portion of
+the block map which holds the relevant mapping. These mappings are cached.
+Performance will suffer when the working set does not fit in the cache. By
+default, a vdo allocates 128 MB of metadata cache in RAM to support
+efficient access to 100 GB of logical space at a time. It should be scaled
+up proportionally for larger working sets.
+
+The logical and physical thread counts should also be adjusted. A logical
+thread controls a disjoint section of the block map, so additional logical
+threads increase parallelism and can increase throughput. Physical threads
+control a disjoint section of the data blocks, so additional physical
+threads can also increase throughput. However, excess threads can waste
+resources and increase contention.
+
+Bio submission threads control the parallelism involved in sending I/O to
+the underlying storage; fewer threads mean there is more opportunity to
+reorder I/O requests for performance benefit, but also that each I/O
+request has to wait longer before being submitted.
+
+Bio acknowledgment threads are used for finishing I/O requests. This is
+done on dedicated threads since the amount of work required to execute a
+bio's callback can not be controlled by the vdo itself. Usually one thread
+is sufficient but additional threads may be beneficial, particularly when
+bios have CPU-heavy callbacks.
+
+CPU threads are used for hashing and for compression; in workloads with
+compression enabled, more threads may result in higher throughput.
+
+Hash threads are used to sort active requests by hash and determine whether
+they should deduplicate; the most CPU intensive actions done by these
+threads are comparison of 4096-byte data blocks. In most cases, a single
+hash thread is sufficient.
diff --git a/Documentation/admin-guide/device-mapper/verity.rst b/Documentation/admin-guide/device-mapper/verity.rst
index a65c1602cb23..8c3f1f967a3c 100644
--- a/Documentation/admin-guide/device-mapper/verity.rst
+++ b/Documentation/admin-guide/device-mapper/verity.rst
@@ -87,6 +87,15 @@ panic_on_corruption
Panic the device when a corrupted block is discovered. This option is
not compatible with ignore_corruption and restart_on_corruption.
+restart_on_error
+ Restart the system when an I/O error is detected.
+ This option can be combined with the restart_on_corruption option.
+
+panic_on_error
+ Panic the device when an I/O error is detected. This option is
+ not compatible with the restart_on_error option but can be combined
+ with the panic_on_corruption option.
+
ignore_zero_blocks
Do not verify blocks that are expected to contain zeroes and always return
zeroes instead. This may be useful if the partition contains unused blocks
@@ -142,8 +151,15 @@ root_hash_sig_key_desc <key_description>
already in the secondary trusted keyring.
try_verify_in_tasklet
- If verity hashes are in cache, verify data blocks in kernel tasklet instead
- of workqueue. This option can reduce IO latency.
+ If verity hashes are in cache and the IO size does not exceed the limit,
+ verify data blocks in bottom half instead of workqueue. This option can
+ reduce IO latency. The size limits can be configured via
+ /sys/module/dm_verity/parameters/use_bh_bytes. The four parameters
+ correspond to limits for IOPRIO_CLASS_NONE, IOPRIO_CLASS_RT,
+ IOPRIO_CLASS_BE and IOPRIO_CLASS_IDLE in turn.
+ For example:
+ <none>,<rt>,<be>,<idle>
+ 4096,4096,4096,4096
Theory of operation
===================
diff --git a/Documentation/admin-guide/devices.txt b/Documentation/admin-guide/devices.txt
index 06c525e01ea5..94c98be1329a 100644
--- a/Documentation/admin-guide/devices.txt
+++ b/Documentation/admin-guide/devices.txt
@@ -2691,18 +2691,9 @@
45 = /dev/ttyMM1 Marvell MPSC - port 1 (obsolete unused)
46 = /dev/ttyCPM0 PPC CPM (SCC or SMC) - port 0
...
- 47 = /dev/ttyCPM5 PPC CPM (SCC or SMC) - port 5
- 50 = /dev/ttyIOC0 Altix serial card
- ...
- 81 = /dev/ttyIOC31 Altix serial card
+ 51 = /dev/ttyCPM5 PPC CPM (SCC or SMC) - port 5
82 = /dev/ttyVR0 NEC VR4100 series SIU
83 = /dev/ttyVR1 NEC VR4100 series DSIU
- 84 = /dev/ttyIOC84 Altix ioc4 serial card
- ...
- 115 = /dev/ttyIOC115 Altix ioc4 serial card
- 116 = /dev/ttySIOC0 Altix ioc3 serial card
- ...
- 147 = /dev/ttySIOC31 Altix ioc3 serial card
148 = /dev/ttyPSC0 PPC PSC - port 0
...
153 = /dev/ttyPSC5 PPC PSC - port 5
@@ -2713,6 +2704,9 @@
...
185 = /dev/ttyNX15 Hilscher netX serial port 15
186 = /dev/ttyJ0 JTAG1 DCC protocol based serial port emulation
+
+ If maximum number of uartlite serial ports is more than 4, then the driver
+ uses dynamic allocation instead of static allocation for major number.
187 = /dev/ttyUL0 Xilinx uartlite - port 0
...
190 = /dev/ttyUL3 Xilinx uartlite - port 3
@@ -2761,10 +2755,7 @@
43 = /dev/ttycusmx2 Callout device for ttySMX2
46 = /dev/cucpm0 Callout device for ttyCPM0
...
- 49 = /dev/cucpm5 Callout device for ttyCPM5
- 50 = /dev/cuioc40 Callout device for ttyIOC40
- ...
- 81 = /dev/cuioc431 Callout device for ttyIOC431
+ 51 = /dev/cucpm5 Callout device for ttyCPM5
82 = /dev/cuvr0 Callout device for ttyVR0
83 = /dev/cuvr1 Callout device for ttyVR1
diff --git a/Documentation/admin-guide/dynamic-debug-howto.rst b/Documentation/admin-guide/dynamic-debug-howto.rst
index 8dc668cc1216..095a63892257 100644
--- a/Documentation/admin-guide/dynamic-debug-howto.rst
+++ b/Documentation/admin-guide/dynamic-debug-howto.rst
@@ -26,6 +26,11 @@ Dynamic debug provides:
- format string
- class name (as known/declared by each module)
+NOTE: To actually get the debug-print output on the console, you may
+need to adjust the kernel ``loglevel=``, or use ``ignore_loglevel``.
+Read about these kernel parameters in
+Documentation/admin-guide/kernel-parameters.rst.
+
Viewing Dynamic Debug Behaviour
===============================
@@ -216,13 +221,15 @@ The flags are::
t Include thread ID, or <intr>
m Include module name
f Include the function name
+ s Include the source file name
l Include line number
+ d Include call trace
For ``print_hex_dump_debug()`` and ``print_hex_dump_bytes()``, only
the ``p`` flag has meaning, other flags are ignored.
-Note the regexp ``^[-+=][flmpt_]+$`` matches a flags specification.
-To clear all flags at once, use ``=_`` or ``-flmpt``.
+Note the regexp ``^[-+=][fslmptd_]+$`` matches a flags specification.
+To clear all flags at once, use ``=_`` or ``-fslmptd``.
Debug messages during Boot Process
@@ -258,7 +265,7 @@ Debug Messages at Module Initialization Time
When ``modprobe foo`` is called, modprobe scans ``/proc/cmdline`` for
``foo.params``, strips ``foo.``, and passes them to the kernel along with
-params given in modprobe args or ``/etc/modprob.d/*.conf`` files,
+params given in modprobe args or ``/etc/modprobe.d/*.conf`` files,
in the following order:
1. parameters given via ``/etc/modprobe.d/*.conf``::
@@ -320,13 +327,13 @@ Examples
:#> ddcmd 'format "nfsd: READ" +p'
// enable messages in files of which the paths include string "usb"
- :#> ddcmd 'file *usb* +p' > /proc/dynamic_debug/control
+ :#> ddcmd 'file *usb* +p'
// enable all messages
- :#> ddcmd '+p' > /proc/dynamic_debug/control
+ :#> ddcmd '+p'
// add module, function to all enabled messages
- :#> ddcmd '+mf' > /proc/dynamic_debug/control
+ :#> ddcmd '+mf'
// boot-args example, with newlines and comments for readability
Kernel command line: ...
diff --git a/Documentation/admin-guide/edid.rst b/Documentation/admin-guide/edid.rst
index 80deeb21a265..1a9b965aa486 100644
--- a/Documentation/admin-guide/edid.rst
+++ b/Documentation/admin-guide/edid.rst
@@ -24,37 +24,4 @@ restrictions later on.
As a remedy for such situations, the kernel configuration item
CONFIG_DRM_LOAD_EDID_FIRMWARE was introduced. It allows to provide an
individually prepared or corrected EDID data set in the /lib/firmware
-directory from where it is loaded via the firmware interface. The code
-(see drivers/gpu/drm/drm_edid_load.c) contains built-in data sets for
-commonly used screen resolutions (800x600, 1024x768, 1280x1024, 1600x1200,
-1680x1050, 1920x1080) as binary blobs, but the kernel source tree does
-not contain code to create these data. In order to elucidate the origin
-of the built-in binary EDID blobs and to facilitate the creation of
-individual data for a specific misbehaving monitor, commented sources
-and a Makefile environment are given here.
-
-To create binary EDID and C source code files from the existing data
-material, simply type "make" in tools/edid/.
-
-If you want to create your own EDID file, copy the file 1024x768.S,
-replace the settings with your own data and add a new target to the
-Makefile. Please note that the EDID data structure expects the timing
-values in a different way as compared to the standard X11 format.
-
-X11:
- HTimings:
- hdisp hsyncstart hsyncend htotal
- VTimings:
- vdisp vsyncstart vsyncend vtotal
-
-EDID::
-
- #define XPIX hdisp
- #define XBLANK htotal-hdisp
- #define XOFFSET hsyncstart-hdisp
- #define XPULSE hsyncend-hsyncstart
-
- #define YPIX vdisp
- #define YBLANK vtotal-vdisp
- #define YOFFSET vsyncstart-vdisp
- #define YPULSE vsyncend-vsyncstart
+directory from where it is loaded via the firmware interface.
diff --git a/Documentation/admin-guide/efi-stub.rst b/Documentation/admin-guide/efi-stub.rst
index b24e7c40d832..f8e7407698bd 100644
--- a/Documentation/admin-guide/efi-stub.rst
+++ b/Documentation/admin-guide/efi-stub.rst
@@ -15,7 +15,7 @@ between architectures is in drivers/firmware/efi/libstub.
For arm64, there is no compressed kernel support, so the Image itself
masquerades as a PE/COFF image and the EFI stub is linked into the
-kernel. The arm64 EFI stub lives in arch/arm64/kernel/efi-entry.S
+kernel. The arm64 EFI stub lives in drivers/firmware/efi/libstub/arm64.c
and drivers/firmware/efi/libstub/arm64-stub.c.
By using the EFI boot stub it's possible to boot a Linux kernel
@@ -79,6 +79,9 @@ because the image we're executing is interpreted by the EFI shell,
which understands relative paths, whereas the rest of the command line
is passed to bzImage.efi.
+.. hint::
+ It is also possible to provide an initrd using a Linux-specific UEFI
+ protocol at boot time. See :ref:`pe-coff-entry-point` for details.
The "dtb=" option
-----------------
diff --git a/Documentation/admin-guide/ext4.rst b/Documentation/admin-guide/ext4.rst
index 5740d85439ff..ac0c709ea9e7 100644
--- a/Documentation/admin-guide/ext4.rst
+++ b/Documentation/admin-guide/ext4.rst
@@ -212,16 +212,6 @@ When mounting an ext4 filesystem, the following option are accepted:
that ext4's inode table readahead algorithm will pre-read into the
buffer cache. The default value is 32 blocks.
- nouser_xattr
- Disables Extended User Attributes. See the attr(5) manual page for
- more information about extended attributes.
-
- noacl
- This option disables POSIX Access Control List support. If ACL support
- is enabled in the kernel configuration (CONFIG_EXT4_FS_POSIX_ACL), ACL
- is enabled by default on mount. See the acl(5) manual page for more
- information about acl.
-
bsddf (*)
Make 'df' act like BSD.
@@ -248,11 +238,10 @@ When mounting an ext4 filesystem, the following option are accepted:
configured using tune2fs)
data_err=ignore(*)
- Just print an error message if an error occurs in a file data buffer in
- ordered mode.
+ Just print an error message if an error occurs in a file data buffer.
+
data_err=abort
- Abort the journal if an error occurs in a file data buffer in ordered
- mode.
+ Abort the journal if an error occurs in a file data buffer.
grpid | bsdgroups
New objects have the group ID of their parent.
@@ -409,7 +398,7 @@ There are 3 different data modes:
* writeback mode
In data=writeback mode, ext4 does not journal data at all. This mode provides
- a similar level of journaling as that of XFS, JFS, and ReiserFS in its default
+ a similar level of journaling as that of XFS and JFS in its default
mode - metadata journaling. A crash+recovery can cause incorrect data to
appear in files which were written shortly before the crash. This mode will
typically provide the best ext4 performance.
diff --git a/Documentation/admin-guide/features.rst b/Documentation/admin-guide/features.rst
index 8c167082a84f..7651eca38227 100644
--- a/Documentation/admin-guide/features.rst
+++ b/Documentation/admin-guide/features.rst
@@ -1,3 +1,3 @@
.. SPDX-License-Identifier: GPL-2.0
-.. kernel-feat:: $srctree/Documentation/features
+.. kernel-feat:: features
diff --git a/Documentation/admin-guide/gpio/gpio-aggregator.rst b/Documentation/admin-guide/gpio/gpio-aggregator.rst
index 5cd1e7221756..8374a9df9105 100644
--- a/Documentation/admin-guide/gpio/gpio-aggregator.rst
+++ b/Documentation/admin-guide/gpio/gpio-aggregator.rst
@@ -69,6 +69,113 @@ write-only attribute files in sysfs.
$ echo gpio-aggregator.0 > delete_device
+Aggregating GPIOs using Configfs
+--------------------------------
+
+**Group:** ``/config/gpio-aggregator``
+
+ This is the root directory of the gpio-aggregator configfs tree.
+
+**Group:** ``/config/gpio-aggregator/<example-name>``
+
+ This directory represents a GPIO aggregator device. You can assign any
+ name to ``<example-name>`` (e.g. ``agg0``), except names starting with
+ ``_sysfs`` prefix, which are reserved for auto-generated configfs
+ entries corresponding to devices created via Sysfs.
+
+**Attribute:** ``/config/gpio-aggregator/<example-name>/live``
+
+ The ``live`` attribute allows to trigger the actual creation of the device
+ once it's fully configured. Accepted values are:
+
+ * ``1``, ``yes``, ``true`` : enable the virtual device
+ * ``0``, ``no``, ``false`` : disable the virtual device
+
+**Attribute:** ``/config/gpio-aggregator/<example-name>/dev_name``
+
+ The read-only ``dev_name`` attribute exposes the name of the device as it
+ will appear in the system on the platform bus (e.g. ``gpio-aggregator.0``).
+ This is useful for identifying a character device for the newly created
+ aggregator. If it's ``gpio-aggregator.0``,
+ ``/sys/devices/platform/gpio-aggregator.0/gpiochipX`` path tells you that the
+ GPIO device id is ``X``.
+
+You must create subdirectories for each virtual line you want to
+instantiate, named exactly as ``line0``, ``line1``, ..., ``lineY``, when
+you want to instantiate ``Y+1`` (Y >= 0) lines. Configure all lines before
+activating the device by setting ``live`` to 1.
+
+**Group:** ``/config/gpio-aggregator/<example-name>/<lineY>/``
+
+ This directory represents a GPIO line to include in the aggregator.
+
+**Attribute:** ``/config/gpio-aggregator/<example-name>/<lineY>/key``
+
+**Attribute:** ``/config/gpio-aggregator/<example-name>/<lineY>/offset``
+
+ The default values after creating the ``<lineY>`` directory are:
+
+ * ``key`` : <empty>
+ * ``offset`` : -1
+
+ ``key`` must always be explicitly configured, while ``offset`` depends.
+ Two configuration patterns exist for each ``<lineY>``:
+
+ (a). For lookup by GPIO line name:
+
+ * Set ``key`` to the line name.
+ * Ensure ``offset`` remains -1 (the default).
+
+ (b). For lookup by GPIO chip name and the line offset within the chip:
+
+ * Set ``key`` to the chip name.
+ * Set ``offset`` to the line offset (0 <= ``offset`` < 65535).
+
+**Attribute:** ``/config/gpio-aggregator/<example-name>/<lineY>/name``
+
+ The ``name`` attribute sets a custom name for lineY. If left unset, the
+ line will remain unnamed.
+
+Once the configuration is done, the ``'live'`` attribute must be set to 1
+in order to instantiate the aggregator device. It can be set back to 0 to
+destroy the virtual device. The module will synchronously wait for the new
+aggregator device to be successfully probed and if this doesn't happen, writing
+to ``'live'`` will result in an error. This is a different behaviour from the
+case when you create it using sysfs ``new_device`` interface.
+
+.. note::
+
+ For aggregators created via Sysfs, the configfs entries are
+ auto-generated and appear as ``/config/gpio-aggregator/_sysfs.<N>/``. You
+ cannot add or remove line directories with mkdir(2)/rmdir(2). To modify
+ lines, you must use the "delete_device" interface to tear down the
+ existing device and reconfigure it from scratch. However, you can still
+ toggle the aggregator with the ``live`` attribute and adjust the
+ ``key``, ``offset``, and ``name`` attributes for each line when ``live``
+ is set to 0 by hand (i.e. it's not waiting for deferred probe).
+
+Sample configuration commands
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+.. code-block:: sh
+
+ # Create a directory for an aggregator device
+ $ mkdir /sys/kernel/config/gpio-aggregator/agg0
+
+ # Configure each line
+ $ mkdir /sys/kernel/config/gpio-aggregator/agg0/line0
+ $ echo gpiochip0 > /sys/kernel/config/gpio-aggregator/agg0/line0/key
+ $ echo 6 > /sys/kernel/config/gpio-aggregator/agg0/line0/offset
+ $ echo test0 > /sys/kernel/config/gpio-aggregator/agg0/line0/name
+ $ mkdir /sys/kernel/config/gpio-aggregator/agg0/line1
+ $ echo gpiochip0 > /sys/kernel/config/gpio-aggregator/agg0/line1/key
+ $ echo 7 > /sys/kernel/config/gpio-aggregator/agg0/line1/offset
+ $ echo test1 > /sys/kernel/config/gpio-aggregator/agg0/line1/name
+
+ # Activate the aggregator device
+ $ echo 1 > /sys/kernel/config/gpio-aggregator/agg0/live
+
+
Generic GPIO Driver
-------------------
diff --git a/Documentation/admin-guide/gpio/gpio-mockup.rst b/Documentation/admin-guide/gpio/gpio-mockup.rst
index 493071da1738..d6e7438a7550 100644
--- a/Documentation/admin-guide/gpio/gpio-mockup.rst
+++ b/Documentation/admin-guide/gpio/gpio-mockup.rst
@@ -3,6 +3,14 @@
GPIO Testing Driver
===================
+.. note::
+
+ This module has been obsoleted by the more flexible gpio-sim.rst.
+ New developments should use that API and existing developments are
+ encouraged to migrate as soon as possible.
+ This module will continue to be maintained but no new features will be
+ added.
+
The GPIO Testing Driver (gpio-mockup) provides a way to create simulated GPIO
chips for testing purposes. The lines exposed by these chips can be accessed
using the standard GPIO character device interface as well as manipulated
diff --git a/Documentation/admin-guide/gpio/gpio-sim.rst b/Documentation/admin-guide/gpio/gpio-sim.rst
index 1cc5567a4bbe..f5135a14ef2e 100644
--- a/Documentation/admin-guide/gpio/gpio-sim.rst
+++ b/Documentation/admin-guide/gpio/gpio-sim.rst
@@ -50,8 +50,11 @@ the number of lines exposed by this bank.
**Attribute:** ``/config/gpio-sim/gpio-device/gpio-bankX/lineY/name``
-This group represents a single line at the offset Y. The 'name' attribute
-allows to set the line name as represented by the 'gpio-line-names' property.
+**Attribute:** ``/config/gpio-sim/gpio-device/gpio-bankX/lineY/valid``
+
+This group represents a single line at the offset Y. The ``valid`` attribute
+indicates whether the line can be used as GPIO. The ``name`` attribute allows
+to set the line name as represented by the 'gpio-line-names' property.
**Item:** ``/config/gpio-sim/gpio-device/gpio-bankX/lineY/hog``
@@ -71,7 +74,7 @@ specific lines. The name of those subdirectories must take the form of:
``'line<offset>'`` (e.g. ``'line0'``, ``'line20'``, etc.) as the name will be
used by the module to assign the config to the specific line at given offset.
-Once the confiuration is complete, the ``'live'`` attribute must be set to 1 in
+Once the configuration is complete, the ``'live'`` attribute must be set to 1 in
order to instantiate the chip. It can be set back to 0 to destroy the simulated
chip. The module will synchronously wait for the new simulated device to be
successfully probed and if this doesn't happen, writing to ``'live'`` will
diff --git a/Documentation/admin-guide/gpio/gpio-virtuser.rst b/Documentation/admin-guide/gpio/gpio-virtuser.rst
new file mode 100644
index 000000000000..7e7c0df51640
--- /dev/null
+++ b/Documentation/admin-guide/gpio/gpio-virtuser.rst
@@ -0,0 +1,177 @@
+.. SPDX-License-Identifier: GPL-2.0-only
+
+Virtual GPIO Consumer
+=====================
+
+The virtual GPIO Consumer module allows users to instantiate virtual devices
+that request GPIOs and then control their behavior over debugfs. Virtual
+consumer devices can be instantiated from device-tree or over configfs.
+
+A virtual consumer uses the driver-facing GPIO APIs and allows to cover it with
+automated tests driven by user-space. The GPIOs are requested using
+``gpiod_get_array()`` and so we support multiple GPIOs per connector ID.
+
+Creating GPIO consumers
+-----------------------
+
+The gpio-consumer module registers a configfs subsystem called
+``'gpio-virtuser'``. For details of the configfs filesystem, please refer to
+the configfs documentation.
+
+The user can create a hierarchy of configfs groups and items as well as modify
+values of exposed attributes. Once the consumer is instantiated, this hierarchy
+will be translated to appropriate device properties. The general structure is:
+
+**Group:** ``/config/gpio-virtuser``
+
+This is the top directory of the gpio-consumer configfs tree.
+
+**Group:** ``/config/gpio-consumer/example-name``
+
+**Attribute:** ``/config/gpio-consumer/example-name/live``
+
+**Attribute:** ``/config/gpio-consumer/example-name/dev_name``
+
+This is a directory representing a GPIO consumer device.
+
+The read-only ``dev_name`` attribute exposes the name of the device as it will
+appear in the system on the platform bus. This is useful for locating the
+associated debugfs directory under
+``/sys/kernel/debug/gpio-virtuser/$dev_name``.
+
+The ``'live'`` attribute allows to trigger the actual creation of the device
+once it's fully configured. The accepted values are: ``'1'`` to enable the
+virtual device and ``'0'`` to disable and tear it down.
+
+Creating GPIO lookup tables
+---------------------------
+
+Users can create a number of configfs groups under the device group:
+
+**Group:** ``/config/gpio-consumer/example-name/con_id``
+
+The ``'con_id'`` directory represents a single GPIO lookup and its value maps
+to the ``'con_id'`` argument of the ``gpiod_get()`` function. For example:
+``con_id`` == ``'reset'`` maps to the ``reset-gpios`` device property.
+
+Users can assign a number of GPIOs to each lookup. Each GPIO is a sub-directory
+with a user-defined name under the ``'con_id'`` group.
+
+**Attribute:** ``/config/gpio-consumer/example-name/con_id/0/key``
+
+**Attribute:** ``/config/gpio-consumer/example-name/con_id/0/offset``
+
+**Attribute:** ``/config/gpio-consumer/example-name/con_id/0/drive``
+
+**Attribute:** ``/config/gpio-consumer/example-name/con_id/0/pull``
+
+**Attribute:** ``/config/gpio-consumer/example-name/con_id/0/active_low``
+
+**Attribute:** ``/config/gpio-consumer/example-name/con_id/0/transitory``
+
+This is a group describing a single GPIO in the ``con_id-gpios`` property.
+
+For virtual consumers created using configfs we use machine lookup tables so
+this group can be considered as a mapping between the filesystem and the fields
+of a single entry in ``'struct gpiod_lookup'``.
+
+The ``'key'`` attribute represents either the name of the chip this GPIO
+belongs to or the GPIO line name. This depends on the value of the ``'offset'``
+attribute: if its value is >= 0, then ``'key'`` represents the label of the
+chip to lookup while ``'offset'`` represents the offset of the line in that
+chip. If ``'offset'`` is < 0, then ``'key'`` represents the name of the line.
+
+The remaining attributes map to the ``'flags'`` field of the GPIO lookup
+struct. The first two take string values as arguments:
+
+**``'drive'``:** ``'push-pull'``, ``'open-drain'``, ``'open-source'``
+**``'pull'``:** ``'pull-up'``, ``'pull-down'``, ``'pull-disabled'``, ``'as-is'``
+
+``'active_low'`` and ``'transitory'`` are boolean attributes.
+
+Activating GPIO consumers
+-------------------------
+
+Once the configuration is complete, the ``'live'`` attribute must be set to 1 in
+order to instantiate the consumer. It can be set back to 0 to destroy the
+virtual device. The module will synchronously wait for the new simulated device
+to be successfully probed and if this doesn't happen, writing to ``'live'`` will
+result in an error.
+
+Device-tree
+-----------
+
+Virtual GPIO consumers can also be defined in device-tree. The compatible string
+must be: ``"gpio-virtuser"`` with at least one property following the
+standardized GPIO pattern.
+
+An example device-tree code defining a virtual GPIO consumer:
+
+.. code-block :: none
+
+ gpio-virt-consumer {
+ compatible = "gpio-virtuser";
+
+ foo-gpios = <&gpio0 5 GPIO_ACTIVE_LOW>, <&gpio1 2 0>;
+ bar-gpios = <&gpio0 6 0>;
+ };
+
+Controlling virtual GPIO consumers
+----------------------------------
+
+Once active, the device will export debugfs attributes for controlling GPIO
+arrays as well as each requested GPIO line separately. Let's consider the
+following device property: ``foo-gpios = <&gpio0 0 0>, <&gpio0 4 0>;``.
+
+The following debugfs attribute groups will be created:
+
+**Group:** ``/sys/kernel/debug/gpio-virtuser/$dev_name/gpiod:foo/``
+
+This is the group that will contain the attributes for the entire GPIO array.
+
+**Attribute:** ``/sys/kernel/debug/gpio-virtuser/$dev_name/gpiod:foo/values``
+
+**Attribute:** ``/sys/kernel/debug/gpio-virtuser/$dev_name/gpiod:foo/values_atomic``
+
+Both attributes allow to read and set arrays of GPIO values. User must pass
+exactly the number of values that the array contains in the form of a string
+containing zeroes and ones representing inactive and active GPIO states
+respectively. In this example: ``echo 11 > values``.
+
+The ``values_atomic`` attribute works the same as ``values`` but the kernel
+will execute the GPIO driver callbacks in interrupt context.
+
+**Group:** ``/sys/kernel/debug/gpio-virtuser/$dev_name/gpiod:foo:$index/``
+
+This is a group that represents a single GPIO with ``$index`` being its offset
+in the array.
+
+**Attribute:** ``/sys/kernel/debug/gpio-virtuser/$dev_name/gpiod:foo:$index/consumer``
+
+Allows to set and read the consumer label of the GPIO line.
+
+**Attribute:** ``/sys/kernel/debug/gpio-virtuser/$dev_name/gpiod:foo:$index/debounce``
+
+Allows to set and read the debounce period of the GPIO line.
+
+**Attribute:** ``/sys/kernel/debug/gpio-virtuser/$dev_name/gpiod:foo:$index/direction``
+
+**Attribute:** ``/sys/kernel/debug/gpio-virtuser/$dev_name/gpiod:foo:$index/direction_atomic``
+
+These two attributes allow to set the direction of the GPIO line. They accept
+"input" and "output" as values. The atomic variant executes the driver callback
+in interrupt context.
+
+**Attribute:** ``/sys/kernel/debug/gpio-virtuser/$dev_name/gpiod:foo:$index/interrupts``
+
+If the line is requested in input mode, writing ``1`` to this attribute will
+make the module listen for edge interrupts on the GPIO. Writing ``0`` disables
+the monitoring. Reading this attribute returns the current number of registered
+interrupts (both edges).
+
+**Attribute:** ``/sys/kernel/debug/gpio-virtuser/$dev_name/gpiod:foo:$index/value``
+
+**Attribute:** ``/sys/kernel/debug/gpio-virtuser/$dev_name/gpiod:foo:$index/value_atomic``
+
+Both attributes allow to read and set values of individual requested GPIO lines.
+They accept the following values: ``1`` and ``0``.
diff --git a/Documentation/admin-guide/gpio/index.rst b/Documentation/admin-guide/gpio/index.rst
index f6861ca16ffe..712f379731cb 100644
--- a/Documentation/admin-guide/gpio/index.rst
+++ b/Documentation/admin-guide/gpio/index.rst
@@ -1,16 +1,17 @@
.. SPDX-License-Identifier: GPL-2.0
====
-gpio
+GPIO
====
.. toctree::
:maxdepth: 1
+ Character Device Userspace API <../../userspace-api/gpio/chardev>
gpio-aggregator
- sysfs
- gpio-mockup
gpio-sim
+ gpio-virtuser
+ Obsolete APIs <obsolete>
.. only:: subproject and html
diff --git a/Documentation/admin-guide/gpio/obsolete.rst b/Documentation/admin-guide/gpio/obsolete.rst
new file mode 100644
index 000000000000..5adbff02d61f
--- /dev/null
+++ b/Documentation/admin-guide/gpio/obsolete.rst
@@ -0,0 +1,13 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+==================
+Obsolete GPIO APIs
+==================
+
+.. toctree::
+ :maxdepth: 1
+
+ Character Device Userspace API (v1) <../../userspace-api/gpio/chardev_v1>
+ Sysfs Interface <../../userspace-api/gpio/sysfs>
+ Mockup Testing Module <gpio-mockup>
+
diff --git a/Documentation/admin-guide/highuid.rst b/Documentation/admin-guide/highuid.rst
deleted file mode 100644
index 6ee70465c0ea..000000000000
--- a/Documentation/admin-guide/highuid.rst
+++ /dev/null
@@ -1,80 +0,0 @@
-===================================================
-Notes on the change from 16-bit UIDs to 32-bit UIDs
-===================================================
-
-:Author: Chris Wing <wingc@umich.edu>
-:Last updated: January 11, 2000
-
-- kernel code MUST take into account __kernel_uid_t and __kernel_uid32_t
- when communicating between user and kernel space in an ioctl or data
- structure.
-
-- kernel code should use uid_t and gid_t in kernel-private structures and
- code.
-
-What's left to be done for 32-bit UIDs on all Linux architectures:
-
-- Disk quotas have an interesting limitation that is not related to the
- maximum UID/GID. They are limited by the maximum file size on the
- underlying filesystem, because quota records are written at offsets
- corresponding to the UID in question.
- Further investigation is needed to see if the quota system can cope
- properly with huge UIDs. If it can deal with 64-bit file offsets on all
- architectures, this should not be a problem.
-
-- Decide whether or not to keep backwards compatibility with the system
- accounting file, or if we should break it as the comments suggest
- (currently, the old 16-bit UID and GID are still written to disk, and
- part of the former pad space is used to store separate 32-bit UID and
- GID)
-
-- Need to validate that OS emulation calls the 16-bit UID
- compatibility syscalls, if the OS being emulated used 16-bit UIDs, or
- uses the 32-bit UID system calls properly otherwise.
-
- This affects at least:
-
- - iBCS on Intel
-
- - sparc32 emulation on sparc64
- (need to support whatever new 32-bit UID system calls are added to
- sparc32)
-
-- Validate that all filesystems behave properly.
-
- At present, 32-bit UIDs _should_ work for:
-
- - ext2
- - ufs
- - isofs
- - nfs
- - coda
- - udf
-
- Ioctl() fixups have been made for:
-
- - ncpfs
- - smbfs
-
- Filesystems with simple fixups to prevent 16-bit UID wraparound:
-
- - minix
- - sysv
- - qnx4
-
- Other filesystems have not been checked yet.
-
-- The ncpfs and smpfs filesystems cannot presently use 32-bit UIDs in
- all ioctl()s. Some new ioctl()s have been added with 32-bit UIDs, but
- more are needed. (as well as new user<->kernel data structures)
-
-- The ELF core dump format only supports 16-bit UIDs on arm, i386, m68k,
- sh, and sparc32. Fixing this is probably not that important, but would
- require adding a new ELF section.
-
-- The ioctl()s used to control the in-kernel NFS server only support
- 16-bit UIDs on arm, i386, m68k, sh, and sparc32.
-
-- make sure that the UID mapping feature of AX25 networking works properly
- (it should be safe because it's always used a 32-bit integer to
- communicate between user and kernel)
diff --git a/Documentation/admin-guide/hw-vuln/attack_vector_controls.rst b/Documentation/admin-guide/hw-vuln/attack_vector_controls.rst
new file mode 100644
index 000000000000..d0bdbd81dcf9
--- /dev/null
+++ b/Documentation/admin-guide/hw-vuln/attack_vector_controls.rst
@@ -0,0 +1,236 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Attack Vector Controls
+======================
+
+Attack vector controls provide a simple method to configure only the mitigations
+for CPU vulnerabilities which are relevant given the intended use of a system.
+Administrators are encouraged to consider which attack vectors are relevant and
+disable all others in order to recoup system performance.
+
+When new relevant CPU vulnerabilities are found, they will be added to these
+attack vector controls so administrators will likely not need to reconfigure
+their command line parameters as mitigations will continue to be correctly
+applied based on the chosen attack vector controls.
+
+Attack Vectors
+--------------
+
+There are 5 sets of attack-vector mitigations currently supported by the kernel:
+
+#. :ref:`user_kernel`
+#. :ref:`user_user`
+#. :ref:`guest_host`
+#. :ref:`guest_guest`
+#. :ref:`smt`
+
+To control the enabled attack vectors, see :ref:`cmdline`.
+
+.. _user_kernel:
+
+User-to-Kernel
+^^^^^^^^^^^^^^
+
+The user-to-kernel attack vector involves a malicious userspace program
+attempting to leak kernel data into userspace by exploiting a CPU vulnerability.
+The kernel data involved might be limited to certain kernel memory, or include
+all memory in the system, depending on the vulnerability exploited.
+
+If no untrusted userspace applications are being run, such as with single-user
+systems, consider disabling user-to-kernel mitigations.
+
+Note that the CPU vulnerabilities mitigated by Linux have generally not been
+shown to be exploitable from browser-based sandboxes. User-to-kernel
+mitigations are therefore mostly relevant if unknown userspace applications may
+be run by untrusted users.
+
+*user-to-kernel mitigations are enabled by default*
+
+.. _user_user:
+
+User-to-User
+^^^^^^^^^^^^
+
+The user-to-user attack vector involves a malicious userspace program attempting
+to influence the behavior of another unsuspecting userspace program in order to
+exfiltrate data. The vulnerability of a userspace program is based on the
+program itself and the interfaces it provides.
+
+If no untrusted userspace applications are being run, consider disabling
+user-to-user mitigations.
+
+Note that because the Linux kernel contains a mapping of all physical memory,
+preventing a malicious userspace program from leaking data from another
+userspace program requires mitigating user-to-kernel attacks as well for
+complete protection.
+
+*user-to-user mitigations are enabled by default*
+
+.. _guest_host:
+
+Guest-to-Host
+^^^^^^^^^^^^^
+
+The guest-to-host attack vector involves a malicious VM attempting to leak
+hypervisor data into the VM. The data involved may be limited, or may
+potentially include all memory in the system, depending on the vulnerability
+exploited.
+
+If no untrusted VMs are being run, consider disabling guest-to-host mitigations.
+
+*guest-to-host mitigations are enabled by default if KVM support is present*
+
+.. _guest_guest:
+
+Guest-to-Guest
+^^^^^^^^^^^^^^
+
+The guest-to-guest attack vector involves a malicious VM attempting to influence
+the behavior of another unsuspecting VM in order to exfiltrate data. The
+vulnerability of a VM is based on the code inside the VM itself and the
+interfaces it provides.
+
+If no untrusted VMs, or only a single VM is being run, consider disabling
+guest-to-guest mitigations.
+
+Similar to the user-to-user attack vector, preventing a malicious VM from
+leaking data from another VM requires mitigating guest-to-host attacks as well
+due to the Linux kernel phys map.
+
+*guest-to-guest mitigations are enabled by default if KVM support is present*
+
+.. _smt:
+
+Cross-Thread
+^^^^^^^^^^^^
+
+The cross-thread attack vector involves a malicious userspace program or
+malicious VM either observing or attempting to influence the behavior of code
+running on the SMT sibling thread in order to exfiltrate data.
+
+Many cross-thread attacks can only be mitigated if SMT is disabled, which will
+result in reduced CPU core count and reduced performance.
+
+If cross-thread mitigations are fully enabled ('auto,nosmt'), all mitigations
+for cross-thread attacks will be enabled. SMT may be disabled depending on
+which vulnerabilities are present in the CPU.
+
+If cross-thread mitigations are partially enabled ('auto'), mitigations for
+cross-thread attacks will be enabled but SMT will not be disabled.
+
+If cross-thread mitigations are disabled, no mitigations for cross-thread
+attacks will be enabled.
+
+Cross-thread mitigation may not be required if core-scheduling or similar
+techniques are used to prevent untrusted workloads from running on SMT siblings.
+
+*cross-thread mitigations default to partially enabled*
+
+.. _cmdline:
+
+Command Line Controls
+---------------------
+
+Attack vectors are controlled through the mitigations= command line option. The
+value provided begins with a global option and then may optionally include one
+or more options to disable various attack vectors.
+
+Format:
+ | ``mitigations=[global]``
+ | ``mitigations=[global],[attack vectors]``
+
+Global options:
+
+============ =============================================================
+Option Description
+============ =============================================================
+'off' All attack vectors disabled.
+'auto' All attack vectors enabled, partial cross-thread mitigations.
+'auto,nosmt' All attack vectors enabled, full cross-thread mitigations.
+============ =============================================================
+
+Attack vector options:
+
+================= =======================================
+Option Description
+================= =======================================
+'no_user_kernel' Disables user-to-kernel mitigations.
+'no_user_user' Disables user-to-user mitigations.
+'no_guest_host' Disables guest-to-host mitigations.
+'no_guest_guest' Disables guest-to-guest mitigations
+'no_cross_thread' Disables all cross-thread mitigations.
+================= =======================================
+
+Multiple attack vector options may be specified in a comma-separated list. If
+the global option is not specified, it defaults to 'auto'. The global option
+'off' is equivalent to disabling all attack vectors.
+
+Examples:
+ | ``mitigations=auto,no_user_kernel``
+
+ Enable all attack vectors except user-to-kernel. Partial cross-thread
+ mitigations.
+
+ | ``mitigations=auto,nosmt,no_guest_host,no_guest_guest``
+
+ Enable all attack vectors and cross-thread mitigations except for
+ guest-to-host and guest-to-guest mitigations.
+
+ | ``mitigations=,no_cross_thread``
+
+ Enable all attack vectors but not cross-thread mitigations.
+
+Interactions with command-line options
+--------------------------------------
+
+Vulnerability-specific controls (e.g. "retbleed=off") take precedence over all
+attack vector controls. Mitigations for individual vulnerabilities may be
+turned on or off via their command-line options regardless of the attack vector
+controls.
+
+Summary of attack-vector mitigations
+------------------------------------
+
+When a vulnerability is mitigated due to an attack-vector control, the default
+mitigation option for that particular vulnerability is used. To use a different
+mitigation, please use the vulnerability-specific command line option.
+
+The table below summarizes which vulnerabilities are mitigated when different
+attack vectors are enabled and assuming the CPU is vulnerable.
+
+=============== ============== ============ ============= ============== ============ ========
+Vulnerability User-to-Kernel User-to-User Guest-to-Host Guest-to-Guest Cross-Thread Notes
+=============== ============== ============ ============= ============== ============ ========
+BHI X X
+ITS X X
+GDS X X X X * (Note 1)
+L1TF X X * (Note 2)
+MDS X X X X * (Note 2)
+MMIO X X X X * (Note 2)
+Meltdown X
+Retbleed X X * (Note 3)
+RFDS X X X X
+Spectre_v1 X
+Spectre_v2 X X
+Spectre_v2_user X X * (Note 1)
+SRBDS X X X X
+SRSO X X X X
+SSB X
+TAA X X X X * (Note 2)
+TSA X X X X
+VMSCAPE X
+=============== ============== ============ ============= ============== ============ ========
+
+Notes:
+ 1 -- Can be mitigated without disabling SMT.
+
+ 2 -- Disables SMT if cross-thread mitigations are fully enabled and the CPU
+ is vulnerable
+
+ 3 -- Disables SMT if cross-thread mitigations are fully enabled, the CPU is
+ vulnerable, and STIBP is not supported
+
+When an attack-vector is disabled, all mitigations for the vulnerabilities
+listed in the above table are disabled, unless mitigation is required for a
+different enabled attack-vector or a mitigation is explicitly selected via a
+vulnerability-specific command line option.
diff --git a/Documentation/admin-guide/hw-vuln/core-scheduling.rst b/Documentation/admin-guide/hw-vuln/core-scheduling.rst
index cf1eeefdfc32..a92e10ec402e 100644
--- a/Documentation/admin-guide/hw-vuln/core-scheduling.rst
+++ b/Documentation/admin-guide/hw-vuln/core-scheduling.rst
@@ -67,8 +67,8 @@ arg4:
will be performed for all tasks in the task group of ``pid``.
arg5:
- userspace pointer to an unsigned long for storing the cookie returned by
- ``PR_SCHED_CORE_GET`` command. Should be 0 for all other commands.
+ userspace pointer to an unsigned long long for storing the cookie returned
+ by ``PR_SCHED_CORE_GET`` command. Should be 0 for all other commands.
In order for a process to push a cookie to, or pull a cookie from a process, it
is required to have the ptrace access mode: `PTRACE_MODE_READ_REALCREDS` to the
diff --git a/Documentation/admin-guide/hw-vuln/gather_data_sampling.rst b/Documentation/admin-guide/hw-vuln/gather_data_sampling.rst
new file mode 100644
index 000000000000..264bfa937f7d
--- /dev/null
+++ b/Documentation/admin-guide/hw-vuln/gather_data_sampling.rst
@@ -0,0 +1,109 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+GDS - Gather Data Sampling
+==========================
+
+Gather Data Sampling is a hardware vulnerability which allows unprivileged
+speculative access to data which was previously stored in vector registers.
+
+Problem
+-------
+When a gather instruction performs loads from memory, different data elements
+are merged into the destination vector register. However, when a gather
+instruction that is transiently executed encounters a fault, stale data from
+architectural or internal vector registers may get transiently forwarded to the
+destination vector register instead. This will allow a malicious attacker to
+infer stale data using typical side channel techniques like cache timing
+attacks. GDS is a purely sampling-based attack.
+
+The attacker uses gather instructions to infer the stale vector register data.
+The victim does not need to do anything special other than use the vector
+registers. The victim does not need to use gather instructions to be
+vulnerable.
+
+Because the buffers are shared between Hyper-Threads cross Hyper-Thread attacks
+are possible.
+
+Attack scenarios
+----------------
+Without mitigation, GDS can infer stale data across virtually all
+permission boundaries:
+
+ Non-enclaves can infer SGX enclave data
+ Userspace can infer kernel data
+ Guests can infer data from hosts
+ Guest can infer guest from other guests
+ Users can infer data from other users
+
+Because of this, it is important to ensure that the mitigation stays enabled in
+lower-privilege contexts like guests and when running outside SGX enclaves.
+
+The hardware enforces the mitigation for SGX. Likewise, VMMs should ensure
+that guests are not allowed to disable the GDS mitigation. If a host erred and
+allowed this, a guest could theoretically disable GDS mitigation, mount an
+attack, and re-enable it.
+
+Mitigation mechanism
+--------------------
+This issue is mitigated in microcode. The microcode defines the following new
+bits:
+
+ ================================ === ============================
+ IA32_ARCH_CAPABILITIES[GDS_CTRL] R/O Enumerates GDS vulnerability
+ and mitigation support.
+ IA32_ARCH_CAPABILITIES[GDS_NO] R/O Processor is not vulnerable.
+ IA32_MCU_OPT_CTRL[GDS_MITG_DIS] R/W Disables the mitigation
+ 0 by default.
+ IA32_MCU_OPT_CTRL[GDS_MITG_LOCK] R/W Locks GDS_MITG_DIS=0. Writes
+ to GDS_MITG_DIS are ignored
+ Can't be cleared once set.
+ ================================ === ============================
+
+GDS can also be mitigated on systems that don't have updated microcode by
+disabling AVX. This can be done by setting gather_data_sampling="force" or
+"clearcpuid=avx" on the kernel command-line.
+
+If used, these options will disable AVX use by turning off XSAVE YMM support.
+However, the processor will still enumerate AVX support. Userspace that
+does not follow proper AVX enumeration to check both AVX *and* XSAVE YMM
+support will break.
+
+Mitigation control on the kernel command line
+---------------------------------------------
+The mitigation can be disabled by setting "gather_data_sampling=off" or
+"mitigations=off" on the kernel command line. Not specifying either will default
+to the mitigation being enabled. Specifying "gather_data_sampling=force" will
+use the microcode mitigation when available or disable AVX on affected systems
+where the microcode hasn't been updated to include the mitigation.
+
+GDS System Information
+------------------------
+The kernel provides vulnerability status information through sysfs. For
+GDS this can be accessed by the following sysfs file:
+
+/sys/devices/system/cpu/vulnerabilities/gather_data_sampling
+
+The possible values contained in this file are:
+
+ ============================== =============================================
+ Not affected Processor not vulnerable.
+ Vulnerable Processor vulnerable and mitigation disabled.
+ Vulnerable: No microcode Processor vulnerable and microcode is missing
+ mitigation.
+ Mitigation: AVX disabled,
+ no microcode Processor is vulnerable and microcode is missing
+ mitigation. AVX disabled as mitigation.
+ Mitigation: Microcode Processor is vulnerable and mitigation is in
+ effect.
+ Mitigation: Microcode (locked) Processor is vulnerable and mitigation is in
+ effect and cannot be disabled.
+ Unknown: Dependent on
+ hypervisor status Running on a virtual guest processor that is
+ affected but with no way to know if host
+ processor is mitigated or vulnerable.
+ ============================== =============================================
+
+GDS Default mitigation
+----------------------
+The updated microcode will enable the mitigation by default. The kernel's
+default action is to leave the mitigation enabled.
diff --git a/Documentation/admin-guide/hw-vuln/index.rst b/Documentation/admin-guide/hw-vuln/index.rst
index e0614760a99e..55d747511f83 100644
--- a/Documentation/admin-guide/hw-vuln/index.rst
+++ b/Documentation/admin-guide/hw-vuln/index.rst
@@ -9,13 +9,21 @@ are configurable at compile, boot or run time.
.. toctree::
:maxdepth: 1
+ attack_vector_controls
spectre
l1tf
mds
tsx_async_abort
- multihit.rst
- special-register-buffer-data-sampling.rst
- core-scheduling.rst
- l1d_flush.rst
- processor_mmio_stale_data.rst
- cross-thread-rsb.rst
+ multihit
+ special-register-buffer-data-sampling
+ core-scheduling
+ l1d_flush
+ processor_mmio_stale_data
+ cross-thread-rsb
+ srso
+ gather_data_sampling
+ reg-file-data-sampling
+ rsb
+ old_microcode
+ indirect-target-selection
+ vmscape
diff --git a/Documentation/admin-guide/hw-vuln/indirect-target-selection.rst b/Documentation/admin-guide/hw-vuln/indirect-target-selection.rst
new file mode 100644
index 000000000000..d9ca64108d23
--- /dev/null
+++ b/Documentation/admin-guide/hw-vuln/indirect-target-selection.rst
@@ -0,0 +1,168 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Indirect Target Selection (ITS)
+===============================
+
+ITS is a vulnerability in some Intel CPUs that support Enhanced IBRS and were
+released before Alder Lake. ITS may allow an attacker to control the prediction
+of indirect branches and RETs located in the lower half of a cacheline.
+
+ITS is assigned CVE-2024-28956 with a CVSS score of 4.7 (Medium).
+
+Scope of Impact
+---------------
+- **eIBRS Guest/Host Isolation**: Indirect branches in KVM/kernel may still be
+ predicted with unintended target corresponding to a branch in the guest.
+
+- **Intra-Mode BTI**: In-kernel training such as through cBPF or other native
+ gadgets.
+
+- **Indirect Branch Prediction Barrier (IBPB)**: After an IBPB, indirect
+ branches may still be predicted with targets corresponding to direct branches
+ executed prior to the IBPB. This is fixed by the IPU 2025.1 microcode, which
+ should be available via distro updates. Alternatively microcode can be
+ obtained from Intel's github repository [#f1]_.
+
+Affected CPUs
+-------------
+Below is the list of ITS affected CPUs [#f2]_ [#f3]_:
+
+ ======================== ============ ==================== ===============
+ Common name Family_Model eIBRS Intra-mode BTI
+ Guest/Host Isolation
+ ======================== ============ ==================== ===============
+ SKYLAKE_X (step >= 6) 06_55H Affected Affected
+ ICELAKE_X 06_6AH Not affected Affected
+ ICELAKE_D 06_6CH Not affected Affected
+ ICELAKE_L 06_7EH Not affected Affected
+ TIGERLAKE_L 06_8CH Not affected Affected
+ TIGERLAKE 06_8DH Not affected Affected
+ KABYLAKE_L (step >= 12) 06_8EH Affected Affected
+ KABYLAKE (step >= 13) 06_9EH Affected Affected
+ COMETLAKE 06_A5H Affected Affected
+ COMETLAKE_L 06_A6H Affected Affected
+ ROCKETLAKE 06_A7H Not affected Affected
+ ======================== ============ ==================== ===============
+
+- All affected CPUs enumerate Enhanced IBRS feature.
+- IBPB isolation is affected on all ITS affected CPUs, and need a microcode
+ update for mitigation.
+- None of the affected CPUs enumerate BHI_CTRL which was introduced in Golden
+ Cove (Alder Lake and Sapphire Rapids). This can help guests to determine the
+ host's affected status.
+- Intel Atom CPUs are not affected by ITS.
+
+Mitigation
+----------
+As only the indirect branches and RETs that have their last byte of instruction
+in the lower half of the cacheline are vulnerable to ITS, the basic idea behind
+the mitigation is to not allow indirect branches in the lower half.
+
+This is achieved by relying on existing retpoline support in the kernel, and in
+compilers. ITS-vulnerable retpoline sites are runtime patched to point to newly
+added ITS-safe thunks. These safe thunks consists of indirect branch in the
+second half of the cacheline. Not all retpoline sites are patched to thunks, if
+a retpoline site is evaluated to be ITS-safe, it is replaced with an inline
+indirect branch.
+
+Dynamic thunks
+~~~~~~~~~~~~~~
+From a dynamically allocated pool of safe-thunks, each vulnerable site is
+replaced with a new thunk, such that they get a unique address. This could
+improve the branch prediction accuracy. Also, it is a defense-in-depth measure
+against aliasing.
+
+Note, for simplicity, indirect branches in eBPF programs are always replaced
+with a jump to a static thunk in __x86_indirect_its_thunk_array. If required,
+in future this can be changed to use dynamic thunks.
+
+All vulnerable RETs are replaced with a static thunk, they do not use dynamic
+thunks. This is because RETs get their prediction from RSB mostly that does not
+depend on source address. RETs that underflow RSB may benefit from dynamic
+thunks. But, RETs significantly outnumber indirect branches, and any benefit
+from a unique source address could be outweighed by the increased icache
+footprint and iTLB pressure.
+
+Retpoline
+~~~~~~~~~
+Retpoline sequence also mitigates ITS-unsafe indirect branches. For this
+reason, when retpoline is enabled, ITS mitigation only relocates the RETs to
+safe thunks. Unless user requested the RSB-stuffing mitigation.
+
+RSB Stuffing
+~~~~~~~~~~~~
+RSB-stuffing via Call Depth Tracking is a mitigation for Retbleed RSB-underflow
+attacks. And it also mitigates RETs that are vulnerable to ITS.
+
+Mitigation in guests
+^^^^^^^^^^^^^^^^^^^^
+All guests deploy ITS mitigation by default, irrespective of eIBRS enumeration
+and Family/Model of the guest. This is because eIBRS feature could be hidden
+from a guest. One exception to this is when a guest enumerates BHI_DIS_S, which
+indicates that the guest is running on an unaffected host.
+
+To prevent guests from unnecessarily deploying the mitigation on unaffected
+platforms, Intel has defined ITS_NO bit(62) in MSR IA32_ARCH_CAPABILITIES. When
+a guest sees this bit set, it should not enumerate the ITS bug. Note, this bit
+is not set by any hardware, but is **intended for VMMs to synthesize** it for
+guests as per the host's affected status.
+
+Mitigation options
+^^^^^^^^^^^^^^^^^^
+The ITS mitigation can be controlled using the "indirect_target_selection"
+kernel parameter. The available options are:
+
+ ======== ===================================================================
+ on (default) Deploy the "Aligned branch/return thunks" mitigation.
+ If spectre_v2 mitigation enables retpoline, aligned-thunks are only
+ deployed for the affected RET instructions. Retpoline mitigates
+ indirect branches.
+
+ off Disable ITS mitigation.
+
+ vmexit Equivalent to "=on" if the CPU is affected by guest/host isolation
+ part of ITS. Otherwise, mitigation is not deployed. This option is
+ useful when host userspace is not in the threat model, and only
+ attacks from guest to host are considered.
+
+ stuff Deploy RSB-fill mitigation when retpoline is also deployed.
+ Otherwise, deploy the default mitigation. When retpoline mitigation
+ is enabled, RSB-stuffing via Call-Depth-Tracking also mitigates
+ ITS.
+
+ force Force the ITS bug and deploy the default mitigation.
+ ======== ===================================================================
+
+Sysfs reporting
+---------------
+
+The sysfs file showing ITS mitigation status is:
+
+ /sys/devices/system/cpu/vulnerabilities/indirect_target_selection
+
+Note, microcode mitigation status is not reported in this file.
+
+The possible values in this file are:
+
+.. list-table::
+
+ * - Not affected
+ - The processor is not vulnerable.
+ * - Vulnerable
+ - System is vulnerable and no mitigation has been applied.
+ * - Vulnerable, KVM: Not affected
+ - System is vulnerable to intra-mode BTI, but not affected by eIBRS
+ guest/host isolation.
+ * - Mitigation: Aligned branch/return thunks
+ - The mitigation is enabled, affected indirect branches and RETs are
+ relocated to safe thunks.
+ * - Mitigation: Retpolines, Stuffing RSB
+ - The mitigation is enabled using retpoline and RSB stuffing.
+
+References
+----------
+.. [#f1] Microcode repository - https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files
+
+.. [#f2] Affected Processors list - https://www.intel.com/content/www/us/en/developer/topic-technology/software-security-guidance/processors-affected-consolidated-product-cpu-model.html
+
+.. [#f3] Affected Processors list (machine readable) - https://github.com/intel/Intel-affected-processor-list
diff --git a/Documentation/admin-guide/hw-vuln/l1d_flush.rst b/Documentation/admin-guide/hw-vuln/l1d_flush.rst
index 210020bc3f56..35dc25159b28 100644
--- a/Documentation/admin-guide/hw-vuln/l1d_flush.rst
+++ b/Documentation/admin-guide/hw-vuln/l1d_flush.rst
@@ -31,7 +31,7 @@ specifically opt into the feature to enable it.
Mitigation
----------
-When PR_SET_L1D_FLUSH is enabled for a task a flush of the L1D cache is
+When PR_SPEC_L1D_FLUSH is enabled for a task a flush of the L1D cache is
performed when the task is scheduled out and the incoming task belongs to a
different process and therefore to a different address space.
diff --git a/Documentation/admin-guide/hw-vuln/mds.rst b/Documentation/admin-guide/hw-vuln/mds.rst
index 48ca0bd85604..754679db0ce8 100644
--- a/Documentation/admin-guide/hw-vuln/mds.rst
+++ b/Documentation/admin-guide/hw-vuln/mds.rst
@@ -102,9 +102,19 @@ The possible values in this file are:
* - 'Vulnerable'
- The processor is vulnerable, but no mitigation enabled
* - 'Vulnerable: Clear CPU buffers attempted, no microcode'
- - The processor is vulnerable but microcode is not updated.
-
- The mitigation is enabled on a best effort basis. See :ref:`vmwerv`
+ - The processor is vulnerable but microcode is not updated. The
+ mitigation is enabled on a best effort basis.
+
+ If the processor is vulnerable but the availability of the microcode
+ based mitigation mechanism is not advertised via CPUID, the kernel
+ selects a best effort mitigation mode. This mode invokes the mitigation
+ instructions without a guarantee that they clear the CPU buffers.
+
+ This is done to address virtualization scenarios where the host has the
+ microcode update applied, but the hypervisor is not yet updated to
+ expose the CPUID to the guest. If the host has updated microcode the
+ protection takes effect; otherwise a few CPU cycles are wasted
+ pointlessly.
* - 'Mitigation: Clear CPU buffers'
- The processor is vulnerable and the CPU buffer clearing mitigation is
enabled.
@@ -119,24 +129,6 @@ to the above information:
'SMT Host state unknown' Kernel runs in a VM, Host SMT state unknown
======================== ============================================
-.. _vmwerv:
-
-Best effort mitigation mode
-^^^^^^^^^^^^^^^^^^^^^^^^^^^
-
- If the processor is vulnerable, but the availability of the microcode based
- mitigation mechanism is not advertised via CPUID the kernel selects a best
- effort mitigation mode. This mode invokes the mitigation instructions
- without a guarantee that they clear the CPU buffers.
-
- This is done to address virtualization scenarios where the host has the
- microcode update applied, but the hypervisor is not yet updated to expose
- the CPUID to the guest. If the host has updated microcode the protection
- takes effect otherwise a few cpu cycles are wasted pointlessly.
-
- The state in the mds sysfs file reflects this situation accordingly.
-
-
Mitigation mechanism
-------------------------
@@ -222,7 +214,7 @@ XEON PHI specific considerations
command line with the 'ring3mwait=disable' command line option.
XEON PHI is not affected by the other MDS variants and MSBDS is mitigated
- before the CPU enters a idle state. As XEON PHI is not affected by L1TF
+ before the CPU enters an idle state. As XEON PHI is not affected by L1TF
either disabling SMT is not required for full protection.
.. _mds_smt_control:
diff --git a/Documentation/admin-guide/hw-vuln/old_microcode.rst b/Documentation/admin-guide/hw-vuln/old_microcode.rst
new file mode 100644
index 000000000000..6ded8f86b8d0
--- /dev/null
+++ b/Documentation/admin-guide/hw-vuln/old_microcode.rst
@@ -0,0 +1,21 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=============
+Old Microcode
+=============
+
+The kernel keeps a table of released microcode. Systems that had
+microcode older than this at boot will say "Vulnerable". This means
+that the system was vulnerable to some known CPU issue. It could be
+security or functional, the kernel does not know or care.
+
+You should update the CPU microcode to mitigate any exposure. This is
+usually accomplished by updating the files in
+/lib/firmware/intel-ucode/ via normal distribution updates. Intel also
+distributes these files in a github repo:
+
+ https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files.git
+
+Just like all the other hardware vulnerabilities, exposure is
+determined at boot. Runtime microcode updates do not change the status
+of this vulnerability.
diff --git a/Documentation/admin-guide/hw-vuln/processor_mmio_stale_data.rst b/Documentation/admin-guide/hw-vuln/processor_mmio_stale_data.rst
index c98fd11907cc..6dba18dbb9ab 100644
--- a/Documentation/admin-guide/hw-vuln/processor_mmio_stale_data.rst
+++ b/Documentation/admin-guide/hw-vuln/processor_mmio_stale_data.rst
@@ -157,9 +157,7 @@ This is achieved by using the otherwise unused and obsolete VERW instruction in
combination with a microcode update. The microcode clears the affected CPU
buffers when the VERW instruction is executed.
-Kernel reuses the MDS function to invoke the buffer clearing:
-
- mds_clear_cpu_buffers()
+Kernel does the buffer clearing with x86_clear_cpu_buffers().
On MDS affected CPUs, the kernel already invokes CPU buffer clear on
kernel/userspace, hypervisor/guest and C-state (idle) transitions. No
@@ -225,8 +223,19 @@ The possible values in this file are:
* - 'Vulnerable'
- The processor is vulnerable, but no mitigation enabled
* - 'Vulnerable: Clear CPU buffers attempted, no microcode'
- - The processor is vulnerable, but microcode is not updated. The
+ - The processor is vulnerable but microcode is not updated. The
mitigation is enabled on a best effort basis.
+
+ If the processor is vulnerable but the availability of the microcode
+ based mitigation mechanism is not advertised via CPUID, the kernel
+ selects a best effort mitigation mode. This mode invokes the mitigation
+ instructions without a guarantee that they clear the CPU buffers.
+
+ This is done to address virtualization scenarios where the host has the
+ microcode update applied, but the hypervisor is not yet updated to
+ expose the CPUID to the guest. If the host has updated microcode the
+ protection takes effect; otherwise a few CPU cycles are wasted
+ pointlessly.
* - 'Mitigation: Clear CPU buffers'
- The processor is vulnerable and the CPU buffer clearing mitigation is
enabled.
diff --git a/Documentation/admin-guide/hw-vuln/reg-file-data-sampling.rst b/Documentation/admin-guide/hw-vuln/reg-file-data-sampling.rst
new file mode 100644
index 000000000000..ad15417d39f9
--- /dev/null
+++ b/Documentation/admin-guide/hw-vuln/reg-file-data-sampling.rst
@@ -0,0 +1,96 @@
+==================================
+Register File Data Sampling (RFDS)
+==================================
+
+Register File Data Sampling (RFDS) is a microarchitectural vulnerability that
+only affects Intel Atom parts(also branded as E-cores). RFDS may allow
+a malicious actor to infer data values previously used in floating point
+registers, vector registers, or integer registers. RFDS does not provide the
+ability to choose which data is inferred. CVE-2023-28746 is assigned to RFDS.
+
+Affected Processors
+===================
+Below is the list of affected Intel processors [#f1]_:
+
+ =================== ============
+ Common name Family_Model
+ =================== ============
+ ATOM_GOLDMONT 06_5CH
+ ATOM_GOLDMONT_D 06_5FH
+ ATOM_GOLDMONT_PLUS 06_7AH
+ ATOM_TREMONT_D 06_86H
+ ATOM_TREMONT 06_96H
+ ALDERLAKE 06_97H
+ ALDERLAKE_L 06_9AH
+ ATOM_TREMONT_L 06_9CH
+ RAPTORLAKE 06_B7H
+ RAPTORLAKE_P 06_BAH
+ ATOM_GRACEMONT 06_BEH
+ RAPTORLAKE_S 06_BFH
+ =================== ============
+
+Mitigation
+==========
+Intel released a microcode update that enables software to clear sensitive
+information using the VERW instruction. Like MDS, RFDS deploys the same
+mitigation strategy to force the CPU to clear the affected buffers before an
+attacker can extract the secrets. This is achieved by using the otherwise
+unused and obsolete VERW instruction in combination with a microcode update.
+The microcode clears the affected CPU buffers when the VERW instruction is
+executed.
+
+Mitigation points
+-----------------
+VERW is executed by the kernel before returning to user space, and by KVM
+before VMentry. None of the affected cores support SMT, so VERW is not required
+at C-state transitions.
+
+New bits in IA32_ARCH_CAPABILITIES
+----------------------------------
+Newer processors and microcode update on existing affected processors added new
+bits to IA32_ARCH_CAPABILITIES MSR. These bits can be used to enumerate
+vulnerability and mitigation capability:
+
+- Bit 27 - RFDS_NO - When set, processor is not affected by RFDS.
+- Bit 28 - RFDS_CLEAR - When set, processor is affected by RFDS, and has the
+ microcode that clears the affected buffers on VERW execution.
+
+Mitigation control on the kernel command line
+---------------------------------------------
+The kernel command line allows to control RFDS mitigation at boot time with the
+parameter "reg_file_data_sampling=". The valid arguments are:
+
+ ========== =================================================================
+ on If the CPU is vulnerable, enable mitigation; CPU buffer clearing
+ on exit to userspace and before entering a VM.
+ off Disables mitigation.
+ ========== =================================================================
+
+Mitigation default is selected by CONFIG_MITIGATION_RFDS.
+
+Mitigation status information
+-----------------------------
+The Linux kernel provides a sysfs interface to enumerate the current
+vulnerability status of the system: whether the system is vulnerable, and
+which mitigations are active. The relevant sysfs file is:
+
+ /sys/devices/system/cpu/vulnerabilities/reg_file_data_sampling
+
+The possible values in this file are:
+
+ .. list-table::
+
+ * - 'Not affected'
+ - The processor is not vulnerable
+ * - 'Vulnerable'
+ - The processor is vulnerable, but no mitigation enabled
+ * - 'Vulnerable: No microcode'
+ - The processor is vulnerable but microcode is not updated.
+ * - 'Mitigation: Clear Register File'
+ - The processor is vulnerable and the CPU buffer clearing mitigation is
+ enabled.
+
+References
+----------
+.. [#f1] Affected Processors
+ https://www.intel.com/content/www/us/en/developer/topic-technology/software-security-guidance/processors-affected-consolidated-product-cpu-model.html
diff --git a/Documentation/admin-guide/hw-vuln/rsb.rst b/Documentation/admin-guide/hw-vuln/rsb.rst
new file mode 100644
index 000000000000..21dbf9cf25f8
--- /dev/null
+++ b/Documentation/admin-guide/hw-vuln/rsb.rst
@@ -0,0 +1,268 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=======================
+RSB-related mitigations
+=======================
+
+.. warning::
+ Please keep this document up-to-date, otherwise you will be
+ volunteered to update it and convert it to a very long comment in
+ bugs.c!
+
+Since 2018 there have been many Spectre CVEs related to the Return Stack
+Buffer (RSB) (sometimes referred to as the Return Address Stack (RAS) or
+Return Address Predictor (RAP) on AMD).
+
+Information about these CVEs and how to mitigate them is scattered
+amongst a myriad of microarchitecture-specific documents.
+
+This document attempts to consolidate all the relevant information in
+once place and clarify the reasoning behind the current RSB-related
+mitigations. It's meant to be as concise as possible, focused only on
+the current kernel mitigations: what are the RSB-related attack vectors
+and how are they currently being mitigated?
+
+It's *not* meant to describe how the RSB mechanism operates or how the
+exploits work. More details about those can be found in the references
+below.
+
+Rather, this is basically a glorified comment, but too long to actually
+be one. So when the next CVE comes along, a kernel developer can
+quickly refer to this as a refresher to see what we're actually doing
+and why.
+
+At a high level, there are two classes of RSB attacks: RSB poisoning
+(Intel and AMD) and RSB underflow (Intel only). They must each be
+considered individually for each attack vector (and microarchitecture
+where applicable).
+
+----
+
+RSB poisoning (Intel and AMD)
+=============================
+
+SpectreRSB
+~~~~~~~~~~
+
+RSB poisoning is a technique used by SpectreRSB [#spectre-rsb]_ where
+an attacker poisons an RSB entry to cause a victim's return instruction
+to speculate to an attacker-controlled address. This can happen when
+there are unbalanced CALLs/RETs after a context switch or VMEXIT.
+
+* All attack vectors can potentially be mitigated by flushing out any
+ poisoned RSB entries using an RSB filling sequence
+ [#intel-rsb-filling]_ [#amd-rsb-filling]_ when transitioning between
+ untrusted and trusted domains. But this has a performance impact and
+ should be avoided whenever possible.
+
+ .. DANGER::
+ **FIXME**: Currently we're flushing 32 entries. However, some CPU
+ models have more than 32 entries. The loop count needs to be
+ increased for those. More detailed information is needed about RSB
+ sizes.
+
+* On context switch, the user->user mitigation requires ensuring the
+ RSB gets filled or cleared whenever IBPB gets written [#cond-ibpb]_
+ during a context switch:
+
+ * AMD:
+ On Zen 4+, IBPB (or SBPB [#amd-sbpb]_ if used) clears the RSB.
+ This is indicated by IBPB_RET in CPUID [#amd-ibpb-rsb]_.
+
+ On Zen < 4, the RSB filling sequence [#amd-rsb-filling]_ must be
+ always be done in addition to IBPB [#amd-ibpb-no-rsb]_. This is
+ indicated by X86_BUG_IBPB_NO_RET.
+
+ * Intel:
+ IBPB always clears the RSB:
+
+ "Software that executed before the IBPB command cannot control
+ the predicted targets of indirect branches executed after the
+ command on the same logical processor. The term indirect branch
+ in this context includes near return instructions, so these
+ predicted targets may come from the RSB." [#intel-ibpb-rsb]_
+
+* On context switch, user->kernel attacks are prevented by SMEP. User
+ space can only insert user space addresses into the RSB. Even
+ non-canonical addresses can't be inserted due to the page gap at the
+ end of the user canonical address space reserved by TASK_SIZE_MAX.
+ A SMEP #PF at instruction fetch prevents the kernel from speculatively
+ executing user space.
+
+ * AMD:
+ "Finally, branches that are predicted as 'ret' instructions get
+ their predicted targets from the Return Address Predictor (RAP).
+ AMD recommends software use a RAP stuffing sequence (mitigation
+ V2-3 in [2]) and/or Supervisor Mode Execution Protection (SMEP)
+ to ensure that the addresses in the RAP are safe for
+ speculation. Collectively, we refer to these mitigations as "RAP
+ Protection"." [#amd-smep-rsb]_
+
+ * Intel:
+ "On processors with enhanced IBRS, an RSB overwrite sequence may
+ not suffice to prevent the predicted target of a near return
+ from using an RSB entry created in a less privileged predictor
+ mode. Software can prevent this by enabling SMEP (for
+ transitions from user mode to supervisor mode) and by having
+ IA32_SPEC_CTRL.IBRS set during VM exits." [#intel-smep-rsb]_
+
+* On VMEXIT, guest->host attacks are mitigated by eIBRS (and PBRSB
+ mitigation if needed):
+
+ * AMD:
+ "When Automatic IBRS is enabled, the internal return address
+ stack used for return address predictions is cleared on VMEXIT."
+ [#amd-eibrs-vmexit]_
+
+ * Intel:
+ "On processors with enhanced IBRS, an RSB overwrite sequence may
+ not suffice to prevent the predicted target of a near return
+ from using an RSB entry created in a less privileged predictor
+ mode. Software can prevent this by enabling SMEP (for
+ transitions from user mode to supervisor mode) and by having
+ IA32_SPEC_CTRL.IBRS set during VM exits. Processors with
+ enhanced IBRS still support the usage model where IBRS is set
+ only in the OS/VMM for OSes that enable SMEP. To do this, such
+ processors will ensure that guest behavior cannot control the
+ RSB after a VM exit once IBRS is set, even if IBRS was not set
+ at the time of the VM exit." [#intel-eibrs-vmexit]_
+
+ Note that some Intel CPUs are susceptible to Post-barrier Return
+ Stack Buffer Predictions (PBRSB) [#intel-pbrsb]_, where the last
+ CALL from the guest can be used to predict the first unbalanced RET.
+ In this case the PBRSB mitigation is needed in addition to eIBRS.
+
+AMD RETBleed / SRSO / Branch Type Confusion
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+On AMD, poisoned RSB entries can also be created by the AMD RETBleed
+variant [#retbleed-paper]_ [#amd-btc]_ or by Speculative Return Stack
+Overflow [#amd-srso]_ (Inception [#inception-paper]_). The kernel
+protects itself by replacing every RET in the kernel with a branch to a
+single safe RET.
+
+----
+
+RSB underflow (Intel only)
+==========================
+
+RSB Alternate (RSBA) ("Intel Retbleed")
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Some Intel Skylake-generation CPUs are susceptible to the Intel variant
+of RETBleed [#retbleed-paper]_ (Return Stack Buffer Underflow
+[#intel-rsbu]_). If a RET is executed when the RSB buffer is empty due
+to mismatched CALLs/RETs or returning from a deep call stack, the branch
+predictor can fall back to using the Branch Target Buffer (BTB). If a
+user forces a BTB collision then the RET can speculatively branch to a
+user-controlled address.
+
+* Note that RSB filling doesn't fully mitigate this issue. If there
+ are enough unbalanced RETs, the RSB may still underflow and fall back
+ to using a poisoned BTB entry.
+
+* On context switch, user->user underflow attacks are mitigated by the
+ conditional IBPB [#cond-ibpb]_ on context switch which effectively
+ clears the BTB:
+
+ * "The indirect branch predictor barrier (IBPB) is an indirect branch
+ control mechanism that establishes a barrier, preventing software
+ that executed before the barrier from controlling the predicted
+ targets of indirect branches executed after the barrier on the same
+ logical processor." [#intel-ibpb-btb]_
+
+* On context switch and VMEXIT, user->kernel and guest->host RSB
+ underflows are mitigated by IBRS or eIBRS:
+
+ * "Enabling IBRS (including enhanced IBRS) will mitigate the "RSBU"
+ attack demonstrated by the researchers. As previously documented,
+ Intel recommends the use of enhanced IBRS, where supported. This
+ includes any processor that enumerates RRSBA but not RRSBA_DIS_S."
+ [#intel-rsbu]_
+
+ However, note that eIBRS and IBRS do not mitigate intra-mode attacks.
+ Like RRSBA below, this is mitigated by clearing the BHB on kernel
+ entry.
+
+ As an alternative to classic IBRS, call depth tracking (combined with
+ retpolines) can be used to track kernel returns and fill the RSB when
+ it gets close to being empty.
+
+Restricted RSB Alternate (RRSBA)
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Some newer Intel CPUs have Restricted RSB Alternate (RRSBA) behavior,
+which, similar to RSBA described above, also falls back to using the BTB
+on RSB underflow. The only difference is that the predicted targets are
+restricted to the current domain when eIBRS is enabled:
+
+* "Restricted RSB Alternate (RRSBA) behavior allows alternate branch
+ predictors to be used by near RET instructions when the RSB is
+ empty. When eIBRS is enabled, the predicted targets of these
+ alternate predictors are restricted to those belonging to the
+ indirect branch predictor entries of the current prediction domain.
+ [#intel-eibrs-rrsba]_
+
+When a CPU with RRSBA is vulnerable to Branch History Injection
+[#bhi-paper]_ [#intel-bhi]_, an RSB underflow could be used for an
+intra-mode BTI attack. This is mitigated by clearing the BHB on
+kernel entry.
+
+However if the kernel uses retpolines instead of eIBRS, it needs to
+disable RRSBA:
+
+* "Where software is using retpoline as a mitigation for BHI or
+ intra-mode BTI, and the processor both enumerates RRSBA and
+ enumerates RRSBA_DIS controls, it should disable this behavior."
+ [#intel-retpoline-rrsba]_
+
+----
+
+References
+==========
+
+.. [#spectre-rsb] `Spectre Returns! Speculation Attacks using the Return Stack Buffer <https://arxiv.org/pdf/1807.07940.pdf>`_
+
+.. [#intel-rsb-filling] "Empty RSB Mitigation on Skylake-generation" in `Retpoline: A Branch Target Injection Mitigation <https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/technical-documentation/retpoline-branch-target-injection-mitigation.html#inpage-nav-5-1>`_
+
+.. [#amd-rsb-filling] "Mitigation V2-3" in `Software Techniques for Managing Speculation <https://www.amd.com/content/dam/amd/en/documents/processor-tech-docs/programmer-references/software-techniques-for-managing-speculation.pdf>`_
+
+.. [#cond-ibpb] Whether IBPB is written depends on whether the prev and/or next task is protected from Spectre attacks. It typically requires opting in per task or system-wide. For more details see the documentation for the ``spectre_v2_user`` cmdline option in Documentation/admin-guide/kernel-parameters.txt.
+
+.. [#amd-sbpb] IBPB without flushing of branch type predictions. Only exists for AMD.
+
+.. [#amd-ibpb-rsb] "Function 8000_0008h -- Processor Capacity Parameters and Extended Feature Identification" in `AMD64 Architecture Programmer's Manual Volume 3: General-Purpose and System Instructions <https://www.amd.com/content/dam/amd/en/documents/processor-tech-docs/programmer-references/24594.pdf>`_. SBPB behaves the same way according to `this email <https://lore.kernel.org/5175b163a3736ca5fd01cedf406735636c99a>`_.
+
+.. [#amd-ibpb-no-rsb] `Spectre Attacks: Exploiting Speculative Execution <https://comsec.ethz.ch/wp-content/files/ibpb_sp25.pdf>`_
+
+.. [#intel-ibpb-rsb] "Introduction" in `Post-barrier Return Stack Buffer Predictions / CVE-2022-26373 / INTEL-SA-00706 <https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/advisory-guidance/post-barrier-return-stack-buffer-predictions.html>`_
+
+.. [#amd-smep-rsb] "Existing Mitigations" in `Technical Guidance for Mitigating Branch Type Confusion <https://www.amd.com/content/dam/amd/en/documents/resources/technical-guidance-for-mitigating-branch-type-confusion.pdf>`_
+
+.. [#intel-smep-rsb] "Enhanced IBRS" in `Indirect Branch Restricted Speculation <https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/technical-documentation/indirect-branch-restricted-speculation.html>`_
+
+.. [#amd-eibrs-vmexit] "Extended Feature Enable Register (EFER)" in `AMD64 Architecture Programmer's Manual Volume 2: System Programming <https://www.amd.com/content/dam/amd/en/documents/processor-tech-docs/programmer-references/24593.pdf>`_
+
+.. [#intel-eibrs-vmexit] "Enhanced IBRS" in `Indirect Branch Restricted Speculation <https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/technical-documentation/indirect-branch-restricted-speculation.html>`_
+
+.. [#intel-pbrsb] `Post-barrier Return Stack Buffer Predictions / CVE-2022-26373 / INTEL-SA-00706 <https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/advisory-guidance/post-barrier-return-stack-buffer-predictions.html>`_
+
+.. [#retbleed-paper] `RETBleed: Arbitrary Speculative Code Execution with Return Instruction <https://comsec.ethz.ch/wp-content/files/retbleed_sec22.pdf>`_
+
+.. [#amd-btc] `Technical Guidance for Mitigating Branch Type Confusion <https://www.amd.com/content/dam/amd/en/documents/resources/technical-guidance-for-mitigating-branch-type-confusion.pdf>`_
+
+.. [#amd-srso] `Technical Update Regarding Speculative Return Stack Overflow <https://www.amd.com/content/dam/amd/en/documents/corporate/cr/speculative-return-stack-overflow-whitepaper.pdf>`_
+
+.. [#inception-paper] `Inception: Exposing New Attack Surfaces with Training in Transient Execution <https://comsec.ethz.ch/wp-content/files/inception_sec23.pdf>`_
+
+.. [#intel-rsbu] `Return Stack Buffer Underflow / Return Stack Buffer Underflow / CVE-2022-29901, CVE-2022-28693 / INTEL-SA-00702 <https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/advisory-guidance/return-stack-buffer-underflow.html>`_
+
+.. [#intel-ibpb-btb] `Indirect Branch Predictor Barrier' <https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/technical-documentation/indirect-branch-predictor-barrier.html>`_
+
+.. [#intel-eibrs-rrsba] "Guidance for RSBU" in `Return Stack Buffer Underflow / Return Stack Buffer Underflow / CVE-2022-29901, CVE-2022-28693 / INTEL-SA-00702 <https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/advisory-guidance/return-stack-buffer-underflow.html>`_
+
+.. [#bhi-paper] `Branch History Injection: On the Effectiveness of Hardware Mitigations Against Cross-Privilege Spectre-v2 Attacks <http://download.vusec.net/papers/bhi-spectre-bhb_sec22.pdf>`_
+
+.. [#intel-bhi] `Branch History Injection and Intra-mode Branch Target Injection / CVE-2022-0001, CVE-2022-0002 / INTEL-SA-00598 <https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/technical-documentation/branch-history-injection.html>`_
+
+.. [#intel-retpoline-rrsba] "Retpoline" in `Branch History Injection and Intra-mode Branch Target Injection / CVE-2022-0001, CVE-2022-0002 / INTEL-SA-00598 <https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/technical-documentation/branch-history-injection.html>`_
diff --git a/Documentation/admin-guide/hw-vuln/spectre.rst b/Documentation/admin-guide/hw-vuln/spectre.rst
index 4d186f599d90..4bb8549bee82 100644
--- a/Documentation/admin-guide/hw-vuln/spectre.rst
+++ b/Documentation/admin-guide/hw-vuln/spectre.rst
@@ -138,11 +138,10 @@ associated with the source address of the indirect branch. Specifically,
the BHB might be shared across privilege levels even in the presence of
Enhanced IBRS.
-Currently the only known real-world BHB attack vector is via
-unprivileged eBPF. Therefore, it's highly recommended to not enable
-unprivileged eBPF, especially when eIBRS is used (without retpolines).
-For a full mitigation against BHB attacks, it's recommended to use
-retpolines (or eIBRS combined with retpolines).
+Previously the only known real-world BHB attack vector was via unprivileged
+eBPF. Further research has found attacks that don't require unprivileged eBPF.
+For a full mitigation against BHB attacks it is recommended to set BHI_DIS_S or
+use the BHB clearing sequence.
Attack scenarios
----------------
@@ -407,7 +406,7 @@ The possible values in this file are:
- Single threaded indirect branch prediction (STIBP) status for protection
between different hyper threads. This feature can be controlled through
- prctl per process, or through kernel command line options. This is x86
+ prctl per process, or through kernel command line options. This is an x86
only feature. For more details see below.
==================== ========================================================
@@ -430,6 +429,23 @@ The possible values in this file are:
'PBRSB-eIBRS: Not affected' CPU is not affected by PBRSB
=========================== =======================================================
+ - Branch History Injection (BHI) protection status:
+
+.. list-table::
+
+ * - BHI: Not affected
+ - System is not affected
+ * - BHI: Retpoline
+ - System is protected by retpoline
+ * - BHI: BHI_DIS_S
+ - System is protected by BHI_DIS_S
+ * - BHI: SW loop, KVM SW loop
+ - System is protected by software clearing sequence
+ * - BHI: Vulnerable
+ - System is vulnerable to BHI
+ * - BHI: Vulnerable, KVM: SW loop
+ - System is vulnerable; KVM is protected by software clearing sequence
+
Full mitigation might require a microcode update from the CPU
vendor. When the necessary microcode is not available, the kernel will
report vulnerability.
@@ -473,8 +489,8 @@ Spectre variant 2
-mindirect-branch=thunk-extern -mindirect-branch-register options.
If the kernel is compiled with a Clang compiler, the compiler needs
to support -mretpoline-external-thunk option. The kernel config
- CONFIG_RETPOLINE needs to be turned on, and the CPU needs to run with
- the latest updated microcode.
+ CONFIG_MITIGATION_RETPOLINE needs to be turned on, and the CPU needs
+ to run with the latest updated microcode.
On Intel Skylake-era systems the mitigation covers most, but not all,
cases. See :ref:`[3] <spec_ref3>` for more details.
@@ -484,11 +500,18 @@ Spectre variant 2
Systems which support enhanced IBRS (eIBRS) enable IBRS protection once at
boot, by setting the IBRS bit, and they're automatically protected against
- Spectre v2 variant attacks, including cross-thread branch target injections
- on SMT systems (STIBP). In other words, eIBRS enables STIBP too.
+ some Spectre v2 variant attacks. The BHB can still influence the choice of
+ indirect branch predictor entry, and although branch predictor entries are
+ isolated between modes when eIBRS is enabled, the BHB itself is not isolated
+ between modes. Systems which support BHI_DIS_S will set it to protect against
+ BHI attacks.
- Legacy IBRS systems clear the IBRS bit on exit to userspace and
- therefore explicitly enable STIBP for that
+ On Intel's enhanced IBRS systems, this includes cross-thread branch target
+ injections on SMT systems (STIBP). In other words, Intel eIBRS enables
+ STIBP, too.
+
+ AMD Automatic IBRS does not protect userspace, and Legacy IBRS systems clear
+ the IBRS bit on exit to userspace, therefore both explicitly enable STIBP.
The retpoline mitigation is turned on by default on vulnerable
CPUs. It can be forced on or off by the administrator
@@ -569,73 +592,19 @@ Spectre variant 2
Mitigation control on the kernel command line
---------------------------------------------
-Spectre variant 2 mitigation can be disabled or force enabled at the
-kernel command line.
-
- nospectre_v1
-
- [X86,PPC] Disable mitigations for Spectre Variant 1
- (bounds check bypass). With this option data leaks are
- possible in the system.
-
- nospectre_v2
-
- [X86] Disable all mitigations for the Spectre variant 2
- (indirect branch prediction) vulnerability. System may
- allow data leaks with this option, which is equivalent
- to spectre_v2=off.
-
-
- spectre_v2=
-
- [X86] Control mitigation of Spectre variant 2
- (indirect branch speculation) vulnerability.
- The default operation protects the kernel from
- user space attacks.
-
- on
- unconditionally enable, implies
- spectre_v2_user=on
- off
- unconditionally disable, implies
- spectre_v2_user=off
- auto
- kernel detects whether your CPU model is
- vulnerable
-
- Selecting 'on' will, and 'auto' may, choose a
- mitigation method at run time according to the
- CPU, the available microcode, the setting of the
- CONFIG_RETPOLINE configuration option, and the
- compiler with which the kernel was built.
-
- Selecting 'on' will also enable the mitigation
- against user space to user space task attacks.
-
- Selecting 'off' will disable both the kernel and
- the user space protections.
-
- Specific mitigations can also be selected manually:
-
- retpoline auto pick between generic,lfence
- retpoline,generic Retpolines
- retpoline,lfence LFENCE; indirect branch
- retpoline,amd alias for retpoline,lfence
- eibrs Enhanced/Auto IBRS
- eibrs,retpoline Enhanced/Auto IBRS + Retpolines
- eibrs,lfence Enhanced/Auto IBRS + LFENCE
- ibrs use IBRS to protect kernel
+In general the kernel selects reasonable default mitigations for the
+current CPU.
- Not specifying this option is equivalent to
- spectre_v2=auto.
+Spectre default mitigations can be disabled or changed at the kernel
+command line with the following options:
- In general the kernel by default selects
- reasonable mitigations for the current CPU. To
- disable Spectre variant 2 mitigations, boot with
- spectre_v2=off. Spectre variant 1 mitigations
- cannot be disabled.
+ - nospectre_v1
+ - nospectre_v2
+ - spectre_v2={option}
+ - spectre_v2_user={option}
+ - spectre_bhi={option}
-For spectre_v2_user see Documentation/admin-guide/kernel-parameters.txt
+For more details on the available options, refer to Documentation/admin-guide/kernel-parameters.txt
Mitigation selection guide
--------------------------
@@ -695,7 +664,7 @@ Intel white papers:
.. _spec_ref1:
-[1] `Intel analysis of speculative execution side channels <https://newsroom.intel.com/wp-content/uploads/sites/11/2018/01/Intel-Analysis-of-Speculative-Execution-Side-Channels.pdf>`_.
+[1] `Intel analysis of speculative execution side channels <https://www.intel.com/content/dam/www/public/us/en/documents/white-papers/analysis-of-speculative-execution-side-channels-white-paper.pdf>`_.
.. _spec_ref2:
@@ -713,7 +682,7 @@ AMD white papers:
.. _spec_ref5:
-[5] `AMD64 technology indirect branch control extension <https://developer.amd.com/wp-content/resources/Architecture_Guidelines_Update_Indirect_Branch_Control.pdf>`_.
+[5] `AMD64 technology indirect branch control extension <https://www.amd.com/content/dam/amd/en/documents/processor-tech-docs/white-papers/111006-architecture-guidelines-update-amd64-technology-indirect-branch-control-extension.pdf>`_.
.. _spec_ref6:
@@ -739,7 +708,7 @@ MIPS white paper:
.. _spec_ref10:
-[10] `MIPS: response on speculative execution and side channel vulnerabilities <https://www.mips.com/blog/mips-response-on-speculative-execution-and-side-channel-vulnerabilities/>`_.
+[10] `MIPS: response on speculative execution and side channel vulnerabilities <https://web.archive.org/web/20220512003005if_/https://www.mips.com/blog/mips-response-on-speculative-execution-and-side-channel-vulnerabilities/>`_.
Academic papers:
diff --git a/Documentation/admin-guide/hw-vuln/srso.rst b/Documentation/admin-guide/hw-vuln/srso.rst
new file mode 100644
index 000000000000..66af95251a3d
--- /dev/null
+++ b/Documentation/admin-guide/hw-vuln/srso.rst
@@ -0,0 +1,242 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Speculative Return Stack Overflow (SRSO)
+========================================
+
+This is a mitigation for the speculative return stack overflow (SRSO)
+vulnerability found on AMD processors. The mechanism is by now the well
+known scenario of poisoning CPU functional units - the Branch Target
+Buffer (BTB) and Return Address Predictor (RAP) in this case - and then
+tricking the elevated privilege domain (the kernel) into leaking
+sensitive data.
+
+AMD CPUs predict RET instructions using a Return Address Predictor (aka
+Return Address Stack/Return Stack Buffer). In some cases, a non-architectural
+CALL instruction (i.e., an instruction predicted to be a CALL but is
+not actually a CALL) can create an entry in the RAP which may be used
+to predict the target of a subsequent RET instruction.
+
+The specific circumstances that lead to this varies by microarchitecture
+but the concern is that an attacker can mis-train the CPU BTB to predict
+non-architectural CALL instructions in kernel space and use this to
+control the speculative target of a subsequent kernel RET, potentially
+leading to information disclosure via a speculative side-channel.
+
+The issue is tracked under CVE-2023-20569.
+
+Affected processors
+-------------------
+
+AMD Zen, generations 1-4. That is, all families 0x17 and 0x19. Older
+processors have not been investigated.
+
+System information and options
+------------------------------
+
+First of all, it is required that the latest microcode be loaded for
+mitigations to be effective.
+
+The sysfs file showing SRSO mitigation status is:
+
+ /sys/devices/system/cpu/vulnerabilities/spec_rstack_overflow
+
+The possible values in this file are:
+
+ * 'Not affected':
+
+ The processor is not vulnerable
+
+* 'Vulnerable':
+
+ The processor is vulnerable and no mitigations have been applied.
+
+ * 'Vulnerable: No microcode':
+
+ The processor is vulnerable, no microcode extending IBPB
+ functionality to address the vulnerability has been applied.
+
+ * 'Vulnerable: Safe RET, no microcode':
+
+ The "Safe RET" mitigation (see below) has been applied to protect the
+ kernel, but the IBPB-extending microcode has not been applied. User
+ space tasks may still be vulnerable.
+
+ * 'Vulnerable: Microcode, no safe RET':
+
+ Extended IBPB functionality microcode patch has been applied. It does
+ not address User->Kernel and Guest->Host transitions protection but it
+ does address User->User and VM->VM attack vectors.
+
+ Note that User->User mitigation is controlled by how the IBPB aspect in
+ the Spectre v2 mitigation is selected:
+
+ * conditional IBPB:
+
+ where each process can select whether it needs an IBPB issued
+ around it PR_SPEC_DISABLE/_ENABLE etc, see :doc:`spectre`
+
+ * strict:
+
+ i.e., always on - by supplying spectre_v2_user=on on the kernel
+ command line
+
+ (spec_rstack_overflow=microcode)
+
+ * 'Mitigation: Safe RET':
+
+ Combined microcode/software mitigation. It complements the
+ extended IBPB microcode patch functionality by addressing
+ User->Kernel and Guest->Host transitions protection.
+
+ Selected by default or by spec_rstack_overflow=safe-ret
+
+ * 'Mitigation: IBPB':
+
+ Similar protection as "safe RET" above but employs an IBPB barrier on
+ privilege domain crossings (User->Kernel, Guest->Host).
+
+ (spec_rstack_overflow=ibpb)
+
+ * 'Mitigation: IBPB on VMEXIT':
+
+ Mitigation addressing the cloud provider scenario - the Guest->Host
+ transitions only.
+
+ (spec_rstack_overflow=ibpb-vmexit)
+
+ * 'Mitigation: Reduced Speculation':
+
+ This mitigation gets automatically enabled when the above one "IBPB on
+ VMEXIT" has been selected and the CPU supports the BpSpecReduce bit.
+
+ It gets automatically enabled on machines which have the
+ SRSO_USER_KERNEL_NO=1 CPUID bit. In that case, the code logic is to switch
+ to the above =ibpb-vmexit mitigation because the user/kernel boundary is
+ not affected anymore and thus "safe RET" is not needed.
+
+ After enabling the IBPB on VMEXIT mitigation option, the BpSpecReduce bit
+ is detected (functionality present on all such machines) and that
+ practically overrides IBPB on VMEXIT as it has a lot less performance
+ impact and takes care of the guest->host attack vector too.
+
+In order to exploit vulnerability, an attacker needs to:
+
+ - gain local access on the machine
+
+ - break kASLR
+
+ - find gadgets in the running kernel in order to use them in the exploit
+
+ - potentially create and pin an additional workload on the sibling
+ thread, depending on the microarchitecture (not necessary on fam 0x19)
+
+ - run the exploit
+
+Considering the performance implications of each mitigation type, the
+default one is 'Mitigation: safe RET' which should take care of most
+attack vectors, including the local User->Kernel one.
+
+As always, the user is advised to keep her/his system up-to-date by
+applying software updates regularly.
+
+The default setting will be reevaluated when needed and especially when
+new attack vectors appear.
+
+As one can surmise, 'Mitigation: safe RET' does come at the cost of some
+performance depending on the workload. If one trusts her/his userspace
+and does not want to suffer the performance impact, one can always
+disable the mitigation with spec_rstack_overflow=off.
+
+Similarly, 'Mitigation: IBPB' is another full mitigation type employing
+an indirect branch prediction barrier after having applied the required
+microcode patch for one's system. This mitigation comes also at
+a performance cost.
+
+Mitigation: Safe RET
+--------------------
+
+The mitigation works by ensuring all RET instructions speculate to
+a controlled location, similar to how speculation is controlled in the
+retpoline sequence. To accomplish this, the __x86_return_thunk forces
+the CPU to mispredict every function return using a 'safe return'
+sequence.
+
+To ensure the safety of this mitigation, the kernel must ensure that the
+safe return sequence is itself free from attacker interference. In Zen3
+and Zen4, this is accomplished by creating a BTB alias between the
+untraining function srso_alias_untrain_ret() and the safe return
+function srso_alias_safe_ret() which results in evicting a potentially
+poisoned BTB entry and using that safe one for all function returns.
+
+In older Zen1 and Zen2, this is accomplished using a reinterpretation
+technique similar to Retbleed one: srso_untrain_ret() and
+srso_safe_ret().
+
+Checking the safe RET mitigation actually works
+-----------------------------------------------
+
+In case one wants to validate whether the SRSO safe RET mitigation works
+on a kernel, one could use two performance counters
+
+* PMC_0xc8 - Count of RET/RET lw retired
+* PMC_0xc9 - Count of RET/RET lw retired mispredicted
+
+and compare the number of RETs retired properly vs those retired
+mispredicted, in kernel mode. Another way of specifying those events
+is::
+
+ # perf list ex_ret_near_ret
+
+ List of pre-defined events (to be used in -e or -M):
+
+ core:
+ ex_ret_near_ret
+ [Retired Near Returns]
+ ex_ret_near_ret_mispred
+ [Retired Near Returns Mispredicted]
+
+Either the command using the event mnemonics::
+
+ # perf stat -e ex_ret_near_ret:k -e ex_ret_near_ret_mispred:k sleep 10s
+
+or using the raw PMC numbers::
+
+ # perf stat -e cpu/event=0xc8,umask=0/k -e cpu/event=0xc9,umask=0/k sleep 10s
+
+should give the same amount. I.e., every RET retired should be
+mispredicted::
+
+ [root@brent: ~/kernel/linux/tools/perf> ./perf stat -e cpu/event=0xc8,umask=0/k -e cpu/event=0xc9,umask=0/k sleep 10s
+
+ Performance counter stats for 'sleep 10s':
+
+ 137,167 cpu/event=0xc8,umask=0/k
+ 137,173 cpu/event=0xc9,umask=0/k
+
+ 10.004110303 seconds time elapsed
+
+ 0.000000000 seconds user
+ 0.004462000 seconds sys
+
+vs the case when the mitigation is disabled (spec_rstack_overflow=off)
+or not functioning properly, showing usually a lot smaller number of
+mispredicted retired RETs vs the overall count of retired RETs during
+a workload::
+
+ [root@brent: ~/kernel/linux/tools/perf> ./perf stat -e cpu/event=0xc8,umask=0/k -e cpu/event=0xc9,umask=0/k sleep 10s
+
+ Performance counter stats for 'sleep 10s':
+
+ 201,627 cpu/event=0xc8,umask=0/k
+ 4,074 cpu/event=0xc9,umask=0/k
+
+ 10.003267252 seconds time elapsed
+
+ 0.002729000 seconds user
+ 0.000000000 seconds sys
+
+Also, there is a selftest which performs the above, go to
+tools/testing/selftests/x86/ and do::
+
+ make srso
+ ./srso
diff --git a/Documentation/admin-guide/hw-vuln/tsx_async_abort.rst b/Documentation/admin-guide/hw-vuln/tsx_async_abort.rst
index 014167ef8dd1..444f84e22a91 100644
--- a/Documentation/admin-guide/hw-vuln/tsx_async_abort.rst
+++ b/Documentation/admin-guide/hw-vuln/tsx_async_abort.rst
@@ -98,7 +98,19 @@ The possible values in this file are:
* - 'Vulnerable'
- The CPU is affected by this vulnerability and the microcode and kernel mitigation are not applied.
* - 'Vulnerable: Clear CPU buffers attempted, no microcode'
- - The system tries to clear the buffers but the microcode might not support the operation.
+ - The processor is vulnerable but microcode is not updated. The
+ mitigation is enabled on a best effort basis.
+
+ If the processor is vulnerable but the availability of the microcode
+ based mitigation mechanism is not advertised via CPUID, the kernel
+ selects a best effort mitigation mode. This mode invokes the mitigation
+ instructions without a guarantee that they clear the CPU buffers.
+
+ This is done to address virtualization scenarios where the host has the
+ microcode update applied, but the hypervisor is not yet updated to
+ expose the CPUID to the guest. If the host has updated microcode the
+ protection takes effect; otherwise a few CPU cycles are wasted
+ pointlessly.
* - 'Mitigation: Clear CPU buffers'
- The microcode has been updated to clear the buffers. TSX is still enabled.
* - 'Mitigation: TSX disabled'
@@ -106,25 +118,6 @@ The possible values in this file are:
* - 'Not affected'
- The CPU is not affected by this issue.
-.. _ucode_needed:
-
-Best effort mitigation mode
-^^^^^^^^^^^^^^^^^^^^^^^^^^^
-
-If the processor is vulnerable, but the availability of the microcode-based
-mitigation mechanism is not advertised via CPUID the kernel selects a best
-effort mitigation mode. This mode invokes the mitigation instructions
-without a guarantee that they clear the CPU buffers.
-
-This is done to address virtualization scenarios where the host has the
-microcode update applied, but the hypervisor is not yet updated to expose the
-CPUID to the guest. If the host has updated microcode the protection takes
-effect; otherwise a few CPU cycles are wasted pointlessly.
-
-The state in the tsx_async_abort sysfs file reflects this situation
-accordingly.
-
-
Mitigation mechanism
--------------------
diff --git a/Documentation/admin-guide/hw-vuln/vmscape.rst b/Documentation/admin-guide/hw-vuln/vmscape.rst
new file mode 100644
index 000000000000..d9b9a2b6c114
--- /dev/null
+++ b/Documentation/admin-guide/hw-vuln/vmscape.rst
@@ -0,0 +1,110 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+VMSCAPE
+=======
+
+VMSCAPE is a vulnerability that may allow a guest to influence the branch
+prediction in host userspace. It particularly affects hypervisors like QEMU.
+
+Even if a hypervisor may not have any sensitive data like disk encryption keys,
+guest-userspace may be able to attack the guest-kernel using the hypervisor as
+a confused deputy.
+
+Affected processors
+-------------------
+
+The following CPU families are affected by VMSCAPE:
+
+**Intel processors:**
+ - Skylake generation (Parts without Enhanced-IBRS)
+ - Cascade Lake generation - (Parts affected by ITS guest/host separation)
+ - Alder Lake and newer (Parts affected by BHI)
+
+Note that, BHI affected parts that use BHB clearing software mitigation e.g.
+Icelake are not vulnerable to VMSCAPE.
+
+**AMD processors:**
+ - Zen series (families 0x17, 0x19, 0x1a)
+
+** Hygon processors:**
+ - Family 0x18
+
+Mitigation
+----------
+
+Conditional IBPB
+----------------
+
+Kernel tracks when a CPU has run a potentially malicious guest and issues an
+IBPB before the first exit to userspace after VM-exit. If userspace did not run
+between VM-exit and the next VM-entry, no IBPB is issued.
+
+Note that the existing userspace mitigation against Spectre-v2 is effective in
+protecting the userspace. They are insufficient to protect the userspace VMMs
+from a malicious guest. This is because Spectre-v2 mitigations are applied at
+context switch time, while the userspace VMM can run after a VM-exit without a
+context switch.
+
+Vulnerability enumeration and mitigation is not applied inside a guest. This is
+because nested hypervisors should already be deploying IBPB to isolate
+themselves from nested guests.
+
+SMT considerations
+------------------
+
+When Simultaneous Multi-Threading (SMT) is enabled, hypervisors can be
+vulnerable to cross-thread attacks. For complete protection against VMSCAPE
+attacks in SMT environments, STIBP should be enabled.
+
+The kernel will issue a warning if SMT is enabled without adequate STIBP
+protection. Warning is not issued when:
+
+- SMT is disabled
+- STIBP is enabled system-wide
+- Intel eIBRS is enabled (which implies STIBP protection)
+
+System information and options
+------------------------------
+
+The sysfs file showing VMSCAPE mitigation status is:
+
+ /sys/devices/system/cpu/vulnerabilities/vmscape
+
+The possible values in this file are:
+
+ * 'Not affected':
+
+ The processor is not vulnerable to VMSCAPE attacks.
+
+ * 'Vulnerable':
+
+ The processor is vulnerable and no mitigation has been applied.
+
+ * 'Mitigation: IBPB before exit to userspace':
+
+ Conditional IBPB mitigation is enabled. The kernel tracks when a CPU has
+ run a potentially malicious guest and issues an IBPB before the first
+ exit to userspace after VM-exit.
+
+ * 'Mitigation: IBPB on VMEXIT':
+
+ IBPB is issued on every VM-exit. This occurs when other mitigations like
+ RETBLEED or SRSO are already issuing IBPB on VM-exit.
+
+Mitigation control on the kernel command line
+----------------------------------------------
+
+The mitigation can be controlled via the ``vmscape=`` command line parameter:
+
+ * ``vmscape=off``:
+
+ Disable the VMSCAPE mitigation.
+
+ * ``vmscape=ibpb``:
+
+ Enable conditional IBPB mitigation (default when CONFIG_MITIGATION_VMSCAPE=y).
+
+ * ``vmscape=force``:
+
+ Force vulnerability detection and mitigation even on processors that are
+ not known to be affected.
diff --git a/Documentation/admin-guide/hw_random.rst b/Documentation/admin-guide/hw_random.rst
index d494601717f1..bfc39f1cf470 100644
--- a/Documentation/admin-guide/hw_random.rst
+++ b/Documentation/admin-guide/hw_random.rst
@@ -14,10 +14,9 @@ into that core.
To make the most effective use of these mechanisms, you
should download the support software as well. Download the
-latest version of the "rng-tools" package from the
-hw_random driver's official Web site:
+latest version of the "rng-tools" package from:
- http://sourceforge.net/projects/gkernel/
+ https://github.com/nhorman/rng-tools
Those tools use /dev/hwrng to fill the kernel entropy pool,
which is used internally and exported by the /dev/urandom and
diff --git a/Documentation/admin-guide/index.rst b/Documentation/admin-guide/index.rst
index 43ea35613dfc..259d79fbeb94 100644
--- a/Documentation/admin-guide/index.rst
+++ b/Documentation/admin-guide/index.rst
@@ -1,3 +1,4 @@
+=================================================
The Linux kernel user's and administrator's guide
=================================================
@@ -6,6 +7,9 @@ added to the kernel over time. There is, as yet, little overall order or
organization here — this material was not written to be a single, coherent
document! With luck things will improve quickly over time.
+General guides to kernel administration
+---------------------------------------
+
This initial section contains overall information, including the README
file describing the kernel as a whole, documentation on kernel parameters,
etc.
@@ -14,19 +18,44 @@ etc.
:maxdepth: 1
README
- kernel-parameters
devices
- sysctl/index
- abi
features
-This section describes CPU vulnerabilities and their mitigations.
+A big part of the kernel's administrative interface is the /proc and sysfs
+virtual filesystems; these documents describe how to interact with tem
+
+.. toctree::
+ :maxdepth: 1
+
+ sysfs-rules
+ sysctl/index
+ cputopology
+ abi
+
+Security-related documentation:
.. toctree::
:maxdepth: 1
hw-vuln/index
+ LSM/index
+ perf-security
+
+Booting the kernel
+------------------
+
+.. toctree::
+ :maxdepth: 1
+
+ bootconfig
+ kernel-parameters
+ efi-stub
+ initrd
+
+
+Tracking down and identifying problems
+--------------------------------------
Here is a set of documents aimed at users who are trying to track down
problems and bugs in particular.
@@ -37,6 +66,7 @@ problems and bugs in particular.
reporting-issues
reporting-regressions
quickly-build-trimmed-linux
+ verify-bugs-and-bisect-regressions
bug-hunting
bug-bisect
tainted-kernels
@@ -46,94 +76,119 @@ problems and bugs in particular.
kdump/index
perf/index
pstore-blk
+ clearing-warn-once
+ kernel-per-CPU-kthreads
+ lockup-watchdogs
+ RAS/index
+ sysrq
-This is the beginning of a section with information of interest to
-application developers. Documents covering various aspects of the kernel
-ABI will be found here.
+
+Core-kernel subsystems
+----------------------
+
+These documents describe core-kernel administration interfaces that are
+likely to be of interest on almost any system.
.. toctree::
:maxdepth: 1
- sysfs-rules
+ cgroup-v2
+ cgroup-v1/index
+ cpu-load
+ mm/index
+ module-signing
+ namespaces/index
+ numastat
+ pm/index
+ syscall-user-dispatch
-This is the beginning of a section with information of interest to
-application developers and system integrators doing analysis of the
-Linux kernel for safety critical applications. Documents supporting
-analysis of kernel interactions with applications, and key kernel
-subsystems expectations will be found here.
+Support for non-native binary formats. Note that some of these
+documents are ... old ...
.. toctree::
:maxdepth: 1
- workload-tracing
+ binfmt-misc
+ java
+ mono
+
-The rest of this manual consists of various unordered guides on how to
-configure specific aspects of kernel behavior to your liking.
+Block-layer and filesystem administration
+-----------------------------------------
.. toctree::
:maxdepth: 1
- acpi/index
- aoe/index
- auxdisplay/index
bcache
binderfs
- binfmt-misc
blockdev/index
- bootconfig
- braille-console
- btmrvl
- cgroup-v1/index
- cgroup-v2
cifs/index
- clearing-warn-once
- cpu-load
- cputopology
- dell_rbu
device-mapper/index
- edid
- efi-stub
ext4
filesystem-monitoring
nfs/index
- gpio/index
- highuid
- hw_random
- initrd
iostats
- java
jfs
- kernel-per-CPU-kthreads
+ md
+ ufs
+ xfs
+
+Device-specific guides
+----------------------
+
+How to configure your hardware within your Linux system.
+
+.. toctree::
+ :maxdepth: 1
+
+ acpi/index
+ aoe/index
+ auxdisplay/index
+ braille-console
+ btmrvl
+ dell_rbu
+ edid
+ gpio/index
+ hw_random
laptops/index
lcd-panel-cgram
- ldm
- lockup-watchdogs
- LSM/index
- md
media/index
- mm/index
- module-signing
- mono
- namespaces/index
- numastat
+ nvme-multipath
parport
- perf-security
- pm/index
pnp
rapidio
- ras
rtc
serial-console
svga
- syscall-user-dispatch
- sysrq
thermal/index
thunderbolt
- ufs
- unicode
vga-softcursor
video-output
- xfs
+
+Workload analysis
+-----------------
+
+This is the beginning of a section with information of interest to
+application developers and system integrators doing analysis of the
+Linux kernel for safety critical applications. Documents supporting
+analysis of kernel interactions with applications, and key kernel
+subsystems expectations will be found here.
+
+.. toctree::
+ :maxdepth: 1
+
+ workload-tracing
+
+Everything else
+---------------
+
+A few hard-to-categorize and generally obsolete documents.
+
+.. toctree::
+ :maxdepth: 1
+
+ ldm
+ unicode
.. only:: subproject and html
diff --git a/Documentation/admin-guide/iostats.rst b/Documentation/admin-guide/iostats.rst
index 609a3201fd4e..9453196ade51 100644
--- a/Documentation/admin-guide/iostats.rst
+++ b/Documentation/admin-guide/iostats.rst
@@ -2,62 +2,39 @@
I/O statistics fields
=====================
-Since 2.4.20 (and some versions before, with patches), and 2.5.45,
-more extensive disk statistics have been introduced to help measure disk
-activity. Tools such as ``sar`` and ``iostat`` typically interpret these and do
-the work for you, but in case you are interested in creating your own
-tools, the fields are explained here.
-
-In 2.4 now, the information is found as additional fields in
-``/proc/partitions``. In 2.6 and upper, the same information is found in two
-places: one is in the file ``/proc/diskstats``, and the other is within
-the sysfs file system, which must be mounted in order to obtain
-the information. Throughout this document we'll assume that sysfs
-is mounted on ``/sys``, although of course it may be mounted anywhere.
-Both ``/proc/diskstats`` and sysfs use the same source for the information
-and so should not differ.
-
-Here are examples of these different formats::
-
- 2.4:
- 3 0 39082680 hda 446216 784926 9550688 4382310 424847 312726 5922052 19310380 0 3376340 23705160
- 3 1 9221278 hda1 35486 0 35496 38030 0 0 0 0 0 38030 38030
-
- 2.6+ sysfs:
- 446216 784926 9550688 4382310 424847 312726 5922052 19310380 0 3376340 23705160
- 35486 38030 38030 38030
-
- 2.6+ diskstats:
- 3 0 hda 446216 784926 9550688 4382310 424847 312726 5922052 19310380 0 3376340 23705160
- 3 1 hda1 35486 38030 38030 38030
-
- 4.18+ diskstats:
- 3 0 hda 446216 784926 9550688 4382310 424847 312726 5922052 19310380 0 3376340 23705160 0 0 0 0
-
-On 2.4 you might execute ``grep 'hda ' /proc/partitions``. On 2.6+, you have
-a choice of ``cat /sys/block/hda/stat`` or ``grep 'hda ' /proc/diskstats``.
-
-The advantage of one over the other is that the sysfs choice works well
-if you are watching a known, small set of disks. ``/proc/diskstats`` may
-be a better choice if you are watching a large number of disks because
-you'll avoid the overhead of 50, 100, or 500 or more opens/closes with
-each snapshot of your disk statistics.
-
-In 2.4, the statistics fields are those after the device name. In
-the above example, the first field of statistics would be 446216.
-By contrast, in 2.6+ if you look at ``/sys/block/hda/stat``, you'll
-find just the 15 fields, beginning with 446216. If you look at
-``/proc/diskstats``, the 15 fields will be preceded by the major and
-minor device numbers, and device name. Each of these formats provides
-15 fields of statistics, each meaning exactly the same things.
-All fields except field 9 are cumulative since boot. Field 9 should
-go to zero as I/Os complete; all others only increase (unless they
-overflow and wrap). Wrapping might eventually occur on a very busy
-or long-lived system; so applications should be prepared to deal with
-it. Regarding wrapping, the types of the fields are either unsigned
-int (32 bit) or unsigned long (32-bit or 64-bit, depending on your
-machine) as noted per-field below. Unless your observations are very
-spread in time, these fields should not wrap twice before you notice it.
+The kernel exposes disk statistics via ``/proc/diskstats`` and
+``/sys/block/<device>/stat``. These stats are usually accessed via tools
+such as ``sar`` and ``iostat``.
+
+Here are examples using a disk with two partitions::
+
+ /proc/diskstats:
+ 259 0 nvme0n1 255999 814 12369153 47919 996852 81 36123024 425995 0 301795 580470 0 0 0 0 60602 106555
+ 259 1 nvme0n1p1 492 813 17572 96 848 81 108288 210 0 76 307 0 0 0 0 0 0
+ 259 2 nvme0n1p2 255401 1 12343477 47799 996004 0 36014736 425784 0 344336 473584 0 0 0 0 0 0
+
+ /sys/block/nvme0n1/stat:
+ 255999 814 12369153 47919 996858 81 36123056 426009 0 301809 580491 0 0 0 0 60605 106562
+
+ /sys/block/nvme0n1/nvme0n1p1/stat:
+ 492 813 17572 96 848 81 108288 210 0 76 307 0 0 0 0 0 0
+
+Both files contain the same 17 statistics. ``/sys/block/<device>/stat``
+contains the fields for ``<device>``. In ``/proc/diskstats`` the fields
+are prefixed with the major and minor device numbers and the device
+name. In the example above, the first stat value for ``nvme0n1`` is
+255999 in both files.
+
+The sysfs ``stat`` file is efficient for monitoring a small, known set
+of disks. If you're tracking a large number of devices,
+``/proc/diskstats`` is often the better choice since it avoids the
+overhead of opening and closing multiple files for each snapshot.
+
+All fields are cumulative, monotonic counters, except for field 9, which
+resets to zero as I/Os complete. The remaining fields reset at boot, on
+device reattachment or reinitialization, or when the underlying counter
+overflows. Applications reading these counters should detect and handle
+resets when comparing stat snapshots.
Each set of stats only applies to the indicated device; if you want
system-wide stats you'll have to find all the devices and sum them all up.
diff --git a/Documentation/admin-guide/kdump/kdump.rst b/Documentation/admin-guide/kdump/kdump.rst
index a748e7eb4429..7b011eb116a7 100644
--- a/Documentation/admin-guide/kdump/kdump.rst
+++ b/Documentation/admin-guide/kdump/kdump.rst
@@ -17,7 +17,7 @@ You can use common commands, such as cp, scp or makedumpfile to copy
the memory image to a dump file on the local disk, or across the network
to a remote system.
-Kdump and kexec are currently supported on the x86, x86_64, ppc64, ia64,
+Kdump and kexec are currently supported on the x86, x86_64, ppc64,
s390x, arm and arm64 architectures.
When the system kernel boots, it reserves a small section of memory for
@@ -113,7 +113,7 @@ There are two possible methods of using Kdump.
2) Or use the system kernel binary itself as dump-capture kernel and there is
no need to build a separate dump-capture kernel. This is possible
only with the architectures which support a relocatable kernel. As
- of today, i386, x86_64, ppc64, ia64, arm and arm64 architectures support
+ of today, i386, x86_64, ppc64, arm and arm64 architectures support
relocatable kernel.
Building a relocatable kernel is advantageous from the point of view that
@@ -136,10 +136,6 @@ System kernel config options
CONFIG_KEXEC_CORE=y
- Subsequently, CRASH_CORE is selected by KEXEC_CORE::
-
- CONFIG_CRASH_CORE=y
-
2) Enable "sysfs file system support" in "Filesystem" -> "Pseudo
filesystems." This is usually enabled by default::
@@ -168,6 +164,10 @@ Dump-capture kernel config options (Arch Independent)
CONFIG_CRASH_DUMP=y
+ And this will select VMCORE_INFO and CRASH_RESERVE::
+ CONFIG_VMCORE_INFO=y
+ CONFIG_CRASH_RESERVE=y
+
2) Enable "/proc/vmcore support" under "Filesystems" -> "Pseudo filesystems"::
CONFIG_PROC_VMCORE=y
@@ -180,10 +180,6 @@ Dump-capture kernel config options (Arch Dependent, i386 and x86_64)
1) On i386, enable high memory support under "Processor type and
features"::
- CONFIG_HIGHMEM64G=y
-
- or::
-
CONFIG_HIGHMEM4G
2) With CONFIG_SMP=y, usually nr_cpus=1 need specified on the kernel
@@ -191,9 +187,7 @@ Dump-capture kernel config options (Arch Dependent, i386 and x86_64)
CPU is enough for kdump kernel to dump vmcore on most of systems.
However, you can also specify nr_cpus=X to enable multiple processors
- in kdump kernel. In this case, "disable_cpu_apicid=" is needed to
- tell kdump kernel which cpu is 1st kernel's BSP. Please refer to
- admin-guide/kernel-parameters.txt for more details.
+ in kdump kernel.
With CONFIG_SMP=n, the above things are not related.
@@ -236,24 +230,6 @@ Dump-capture kernel config options (Arch Dependent, ppc64)
Make and install the kernel and its modules.
-Dump-capture kernel config options (Arch Dependent, ia64)
-----------------------------------------------------------
-
-- No specific options are required to create a dump-capture kernel
- for ia64, other than those specified in the arch independent section
- above. This means that it is possible to use the system kernel
- as a dump-capture kernel if desired.
-
- The crashkernel region can be automatically placed by the system
- kernel at runtime. This is done by specifying the base address as 0,
- or omitting it all together::
-
- crashkernel=256M@0
-
- or::
-
- crashkernel=256M
-
Dump-capture kernel config options (Arch Dependent, arm)
----------------------------------------------------------
@@ -335,6 +311,27 @@ crashkernel syntax
crashkernel=0,low
+4) crashkernel=size,cma
+
+ Reserve additional crash kernel memory from CMA. This reservation is
+ usable by the first system's userspace memory and kernel movable
+ allocations (memory balloon, zswap). Pages allocated from this memory
+ range will not be included in the vmcore so this should not be used if
+ dumping of userspace memory is intended and it has to be expected that
+ some movable kernel pages may be missing from the dump.
+
+ A standard crashkernel reservation, as described above, is still needed
+ to hold the crash kernel and initrd.
+
+ This option increases the risk of a kdump failure: DMA transfers
+ configured by the first kernel may end up corrupting the second
+ kernel's memory.
+
+ This reservation method is intended for systems that can't afford to
+ sacrifice enough memory for standard crashkernel reservation and where
+ less reliable and possibly incomplete kdump is preferable to no kdump at
+ all.
+
Boot into System Kernel
-----------------------
1) Update the boot loader (such as grub, yaboot, or lilo) configuration
@@ -348,11 +345,6 @@ Boot into System Kernel
On ppc64, use "crashkernel=128M@32M".
- On ia64, 256M@256M is a generous value that typically works.
- The region may be automatically placed on ia64, see the
- dump-capture kernel config option notes above.
- If use sparse memory, the size should be rounded to GRANULE boundaries.
-
On s390x, typically use "crashkernel=xxM". The value of xx is dependent
on the memory consumption of the kdump system. In general this is not
dependent on the memory size of the production system.
@@ -383,10 +375,6 @@ For ppc64:
- Use vmlinux
-For ia64:
-
- - Use vmlinux or vmlinuz.gz
-
For s390x:
- Use image or bzImage
@@ -428,14 +416,10 @@ to load dump-capture kernel::
--initrd=<initrd-for-dump-capture-kernel> \
--append="root=<root-dev> <arch-specific-options>"
-Please note, that --args-linux does not need to be specified for ia64.
-It is planned to make this a no-op on that architecture, but for now
-it should be omitted
-
Following are the arch specific command line options to be used while
loading dump-capture kernel.
-For i386, x86_64 and ia64:
+For i386 and x86_64:
"1 irqpoll nr_cpus=1 reset_devices"
@@ -485,10 +469,9 @@ Notes on loading the dump-capture kernel:
to use multi-thread programs with it, such as parallel dump feature of
makedumpfile. Otherwise, the multi-thread program may have a great
performance degradation. To enable multi-cpu support, you should bring up an
- SMP dump-capture kernel and specify maxcpus/nr_cpus, disable_cpu_apicid=[X]
- options while loading it.
+ SMP dump-capture kernel and specify maxcpus/nr_cpus options while loading it.
-* For s390x there are two kdump modes: If a ELF header is specified with
+* For s390x there are two kdump modes: If an ELF header is specified with
the elfcorehdr= kernel parameter, it is used by the kdump kernel as it
is done on all other architectures. If no elfcorehdr= kernel parameter is
specified, the s390x kdump kernel dynamically creates the header. The
@@ -585,6 +568,38 @@ from within add_taint() whenever the value set in this bitmask matches with the
bit flag being set by add_taint().
This will cause a kdump to occur at the add_taint()->panic() call.
+Write the dump file to encrypted disk volume
+============================================
+
+CONFIG_CRASH_DM_CRYPT can be enabled to support saving the dump file to an
+encrypted disk volume (only x86_64 supported for now). User space can interact
+with /sys/kernel/config/crash_dm_crypt_keys for setup,
+
+1. Tell the first kernel what logon keys are needed to unlock the disk volumes,
+ # Add key #1
+ mkdir /sys/kernel/config/crash_dm_crypt_keys/7d26b7b4-e342-4d2d-b660-7426b0996720
+ # Add key #1's description
+ echo cryptsetup:7d26b7b4-e342-4d2d-b660-7426b0996720 > /sys/kernel/config/crash_dm_crypt_keys/description
+
+ # how many keys do we have now?
+ cat /sys/kernel/config/crash_dm_crypt_keys/count
+ 1
+
+ # Add key #2 in the same way
+
+ # how many keys do we have now?
+ cat /sys/kernel/config/crash_dm_crypt_keys/count
+ 2
+
+ # To support CPU/memory hot-plugging, re-use keys already saved to reserved
+ # memory
+ echo true > /sys/kernel/config/crash_dm_crypt_key/reuse
+
+2. Load the dump-capture kernel
+
+3. After the dump-capture kerne get booted, restore the keys to user keyring
+ echo yes > /sys/kernel/crash_dm_crypt_keys/restore
+
Contact
=======
diff --git a/Documentation/admin-guide/kdump/vmcoreinfo.rst b/Documentation/admin-guide/kdump/vmcoreinfo.rst
index c18d94fa6470..404a15f6782c 100644
--- a/Documentation/admin-guide/kdump/vmcoreinfo.rst
+++ b/Documentation/admin-guide/kdump/vmcoreinfo.rst
@@ -65,11 +65,11 @@ Defines the beginning of the text section. In general, _stext indicates
the kernel start address. Used to convert a virtual address from the
direct kernel map to a physical address.
-vmap_area_list
---------------
+VMALLOC_START
+-------------
-Stores the virtual area list. makedumpfile gets the vmalloc start value
-from this variable and its value is necessary for vmalloc translation.
+Stores the base address of vmalloc area. makedumpfile gets this value
+since is necessary for vmalloc translation.
mem_map
-------
@@ -141,8 +141,8 @@ nodemask_t
The size of a nodemask_t type. Used to compute the number of online
nodes.
-(page, flags|_refcount|mapping|lru|_mapcount|private|compound_dtor|compound_order|compound_head)
--------------------------------------------------------------------------------------------------
+(page, flags|_refcount|mapping|lru|_mapcount|private|compound_order|compound_head)
+----------------------------------------------------------------------------------
User-space tools compute their values based on the offset of these
variables. The variables are used when excluding unnecessary pages.
@@ -172,7 +172,7 @@ variables.
Offset of the free_list's member. This value is used to compute the number
of free pages.
-Each zone has a free_area structure array called free_area[MAX_ORDER + 1].
+Each zone has a free_area structure array called free_area[NR_PAGE_ORDERS].
The free_list represents a linked list of free page blocks.
(list_head, next|prev)
@@ -189,11 +189,11 @@ Offsets of the vmap_area's members. They carry vmalloc-specific
information. Makedumpfile gets the start address of the vmalloc region
from this.
-(zone.free_area, MAX_ORDER + 1)
--------------------------------
+(zone.free_area, NR_PAGE_ORDERS)
+--------------------------------
Free areas descriptor. User-space tools use this value to iterate the
-free_area ranges. MAX_ORDER is used by the zone buddy allocator.
+free_area ranges. NR_PAGE_ORDERS is used by the zone buddy allocator.
prb
---
@@ -325,25 +325,19 @@ NR_FREE_PAGES
On linux-2.6.21 or later, the number of free pages is in
vm_stat[NR_FREE_PAGES]. Used to get the number of free pages.
-PG_lru|PG_private|PG_swapcache|PG_swapbacked|PG_slab|PG_hwpoision|PG_head_mask
-------------------------------------------------------------------------------
+PG_lru|PG_private|PG_swapcache|PG_swapbacked|PG_hwpoison|PG_head_mask
+--------------------------------------------------------------------------
Page attributes. These flags are used to filter various unnecessary for
dumping pages.
-PAGE_BUDDY_MAPCOUNT_VALUE(~PG_buddy)|PAGE_OFFLINE_MAPCOUNT_VALUE(~PG_offline)
------------------------------------------------------------------------------
+PAGE_SLAB_MAPCOUNT_VALUE|PAGE_BUDDY_MAPCOUNT_VALUE|PAGE_OFFLINE_MAPCOUNT_VALUE|PAGE_HUGETLB_MAPCOUNT_VALUE|PAGE_UNACCEPTED_MAPCOUNT_VALUE
+------------------------------------------------------------------------------------------------------------------------------------------
More page attributes. These flags are used to filter various unnecessary for
dumping pages.
-HUGETLB_PAGE_DTOR
------------------
-
-The HUGETLB_PAGE_DTOR flag denotes hugetlbfs pages. Makedumpfile
-excludes these pages.
-
x86_64
======
@@ -419,36 +413,6 @@ of a higher page table lookup overhead, and also consumes more page
table space per process. Used to check whether PAE was enabled in the
crash kernel when converting virtual addresses to physical addresses.
-ia64
-====
-
-pgdat_list|(pgdat_list, MAX_NUMNODES)
--------------------------------------
-
-pg_data_t array storing all NUMA nodes information. MAX_NUMNODES
-indicates the number of the nodes.
-
-node_memblk|(node_memblk, NR_NODE_MEMBLKS)
-------------------------------------------
-
-List of node memory chunks. Filled when parsing the SRAT table to obtain
-information about memory nodes. NR_NODE_MEMBLKS indicates the number of
-node memory chunks.
-
-These values are used to compute the number of nodes the crashed kernel used.
-
-node_memblk_s|(node_memblk_s, start_paddr)|(node_memblk_s, size)
-----------------------------------------------------------------
-
-The size of a struct node_memblk_s and the offsets of the
-node_memblk_s's members. Used to compute the number of nodes.
-
-PGTABLE_3|PGTABLE_4
--------------------
-
-User-space tools need to know whether the crash kernel was in 3-level or
-4-level paging mode. Used to distinguish the page table.
-
ARM64
=====
@@ -624,3 +588,9 @@ Used to get the correct ranges:
* VMALLOC_START ~ VMALLOC_END : vmalloc() / ioremap() space.
* VMEMMAP_START ~ VMEMMAP_END : vmemmap space, used for struct page array.
* KERNEL_LINK_ADDR : start address of Kernel link and BPF
+
+va_kernel_pa_offset
+-------------------
+
+Indicates the offset between the kernel virtual and physical mappings.
+Used to translate virtual to physical addresses.
diff --git a/Documentation/admin-guide/kernel-parameters.rst b/Documentation/admin-guide/kernel-parameters.rst
index 1ba8f2a44aac..02a725536cc5 100644
--- a/Documentation/admin-guide/kernel-parameters.rst
+++ b/Documentation/admin-guide/kernel-parameters.rst
@@ -1,3 +1,5 @@
+.. SPDX-License-Identifier: GPL-2.0
+
.. _kernelparameters:
The kernel's command-line parameters
@@ -27,6 +29,16 @@ kernel command line (/proc/cmdline) and collects module parameters
when it loads a module, so the kernel command line can be used for
loadable modules too.
+This document may not be entirely up to date and comprehensive. The command
+"modinfo -p ${modulename}" shows a current list of all parameters of a loadable
+module. Loadable modules, after being loaded into the running kernel, also
+reveal their parameters in /sys/module/${modulename}/parameters/. Some of these
+parameters may be changed at runtime by the command
+``echo -n ${value} > /sys/module/${modulename}/parameters/${parm}``.
+
+Special handling
+----------------
+
Hyphens (dashes) and underscores are equivalent in parameter names, so::
log_buf_len=1M print-fatal-signals=1
@@ -39,8 +51,8 @@ Double-quotes can be used to protect spaces in values, e.g.::
param="spaces in here"
-cpu lists:
-----------
+cpu lists
+~~~~~~~~~
Some kernel parameters take a list of CPUs as a value, e.g. isolcpus,
nohz_full, irqaffinity, rcu_nocbs. The format of this list is:
@@ -80,115 +92,25 @@ The special case-tolerant group name "all" has a meaning of selecting all CPUs,
so that "nohz_full=all" is the equivalent of "nohz_full=0-N".
The semantics of "N" and "all" is supported on a level of bitmaps and holds for
-all users of bitmap_parse().
+all users of bitmap_parselist().
-This document may not be entirely up to date and comprehensive. The command
-"modinfo -p ${modulename}" shows a current list of all parameters of a loadable
-module. Loadable modules, after being loaded into the running kernel, also
-reveal their parameters in /sys/module/${modulename}/parameters/. Some of these
-parameters may be changed at runtime by the command
-``echo -n ${value} > /sys/module/${modulename}/parameters/${parm}``.
+Metric suffixes
+~~~~~~~~~~~~~~~
-The parameters listed below are only valid if certain kernel build options were
-enabled and if respective hardware is present. The text in square brackets at
-the beginning of each description states the restrictions within which a
-parameter is applicable::
-
- ACPI ACPI support is enabled.
- AGP AGP (Accelerated Graphics Port) is enabled.
- ALSA ALSA sound support is enabled.
- APIC APIC support is enabled.
- APM Advanced Power Management support is enabled.
- APPARMOR AppArmor support is enabled.
- ARM ARM architecture is enabled.
- ARM64 ARM64 architecture is enabled.
- AX25 Appropriate AX.25 support is enabled.
- CLK Common clock infrastructure is enabled.
- CMA Contiguous Memory Area support is enabled.
- DRM Direct Rendering Management support is enabled.
- DYNAMIC_DEBUG Build in debug messages and enable them at runtime
- EDD BIOS Enhanced Disk Drive Services (EDD) is enabled
- EFI EFI Partitioning (GPT) is enabled
- EVM Extended Verification Module
- FB The frame buffer device is enabled.
- FTRACE Function tracing enabled.
- GCOV GCOV profiling is enabled.
- HIBERNATION HIBERNATION is enabled.
- HW Appropriate hardware is enabled.
- HYPER_V HYPERV support is enabled.
- IA-64 IA-64 architecture is enabled.
- IMA Integrity measurement architecture is enabled.
- IP_PNP IP DHCP, BOOTP, or RARP is enabled.
- IPV6 IPv6 support is enabled.
- ISAPNP ISA PnP code is enabled.
- ISDN Appropriate ISDN support is enabled.
- ISOL CPU Isolation is enabled.
- JOY Appropriate joystick support is enabled.
- KGDB Kernel debugger support is enabled.
- KVM Kernel Virtual Machine support is enabled.
- LIBATA Libata driver is enabled
- LP Printer support is enabled.
- LOONGARCH LoongArch architecture is enabled.
- LOOP Loopback device support is enabled.
- M68k M68k architecture is enabled.
- These options have more detailed description inside of
- Documentation/arch/m68k/kernel-options.rst.
- MDA MDA console support is enabled.
- MIPS MIPS architecture is enabled.
- MOUSE Appropriate mouse support is enabled.
- MSI Message Signaled Interrupts (PCI).
- MTD MTD (Memory Technology Device) support is enabled.
- NET Appropriate network support is enabled.
- NUMA NUMA support is enabled.
- NFS Appropriate NFS support is enabled.
- OF Devicetree is enabled.
- PV_OPS A paravirtualized kernel is enabled.
- PARISC The PA-RISC architecture is enabled.
- PCI PCI bus support is enabled.
- PCIE PCI Express support is enabled.
- PCMCIA The PCMCIA subsystem is enabled.
- PNP Plug & Play support is enabled.
- PPC PowerPC architecture is enabled.
- PPT Parallel port support is enabled.
- PS2 Appropriate PS/2 support is enabled.
- RAM RAM disk support is enabled.
- RISCV RISCV architecture is enabled.
- RDT Intel Resource Director Technology.
- S390 S390 architecture is enabled.
- SCSI Appropriate SCSI support is enabled.
- A lot of drivers have their options described inside
- the Documentation/scsi/ sub-directory.
- SECURITY Different security models are enabled.
- SELINUX SELinux support is enabled.
- SERIAL Serial support is enabled.
- SH SuperH architecture is enabled.
- SMP The kernel is an SMP kernel.
- SPARC Sparc architecture is enabled.
- SWSUSP Software suspend (hibernation) is enabled.
- SUSPEND System suspend states are enabled.
- TPM TPM drivers are enabled.
- UMS USB Mass Storage support is enabled.
- USB USB support is enabled.
- USBHID USB Human Interface Device support is enabled.
- V4L Video For Linux support is enabled.
- VMMIO Driver for memory mapped virtio devices is enabled.
- VGA The VGA console has been enabled.
- VT Virtual terminal support is enabled.
- WDT Watchdog support is enabled.
- X86-32 X86-32, aka i386 architecture is enabled.
- X86-64 X86-64 architecture is enabled.
- More X86-64 boot options can be found in
- Documentation/arch/x86/x86_64/boot-options.rst.
- X86 Either 32-bit or 64-bit x86 (same as X86-32+X86-64)
- X86_UV SGI UV support is enabled.
- XEN Xen support is enabled
- XTENSA xtensa architecture is enabled.
-
-In addition, the following text indicates that the option::
-
- BUGS= Relates to possible processor bugs on the said processor.
- KNL Is a kernel start-up parameter.
- BOOT Is a boot loader parameter.
+The [KMG] suffix is commonly described after a number of kernel
+parameter values. 'K', 'M', 'G', 'T', 'P', and 'E' suffixes are allowed.
+These letters represent the _binary_ multipliers 'Kilo', 'Mega', 'Giga',
+'Tera', 'Peta', and 'Exa', equaling 2^10, 2^20, 2^30, 2^40, 2^50, and
+2^60 bytes respectively. Such letter suffixes can also be entirely omitted.
+
+Kernel Build Options
+--------------------
+
+The parameters listed below are only valid if certain kernel build options
+were enabled and if respective hardware is present. This list should be kept
+in alphabetical order. The text in square brackets at the beginning
+of each description states the restrictions within which a parameter
+is applicable.
Parameters denoted with BOOT are actually interpreted by the boot
loader, and have no meaning to the kernel directly.
@@ -196,10 +118,9 @@ Do not modify the syntax of boot loader parameters without extreme
need or coordination with <Documentation/arch/x86/boot.rst>.
There are also arch-specific kernel-parameters not documented here.
-See for example <Documentation/arch/x86/x86_64/boot-options.rst>.
Note that ALL kernel parameters listed below are CASE SENSITIVE, and that
-a trailing = on the name of any parameter states that that parameter will
+a trailing = on the name of any parameter states that the parameter will
be entered as an environment variable, whereas its absence indicates that
it will appear as a kernel argument readable via /proc/cmdline by programs
running once the system is up.
@@ -210,15 +131,5 @@ a fixed number of characters. This limit depends on the architecture
and is between 256 and 4096 characters. It is defined in the file
./include/uapi/asm-generic/setup.h as COMMAND_LINE_SIZE.
-Finally, the [KMG] suffix is commonly described after a number of kernel
-parameter values. These 'K', 'M', and 'G' letters represent the _binary_
-multipliers 'Kilo', 'Mega', and 'Giga', equaling 2^10, 2^20, and 2^30
-bytes respectively. Such letter suffixes can also be entirely omitted:
-
.. include:: kernel-parameters.txt
:literal:
-
-Todo
-----
-
- Add more DRM drivers.
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 9e5bab29685f..a8d0afde7f85 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -1,21 +1,138 @@
- acpi= [HW,ACPI,X86,ARM64]
+ ACPI ACPI support is enabled.
+ AGP AGP (Accelerated Graphics Port) is enabled.
+ ALSA ALSA sound support is enabled.
+ APIC APIC support is enabled.
+ APM Advanced Power Management support is enabled.
+ APPARMOR AppArmor support is enabled.
+ ARM ARM architecture is enabled.
+ ARM64 ARM64 architecture is enabled.
+ AX25 Appropriate AX.25 support is enabled.
+ CLK Common clock infrastructure is enabled.
+ CMA Contiguous Memory Area support is enabled.
+ DRM Direct Rendering Management support is enabled.
+ DYNAMIC_DEBUG Build in debug messages and enable them at runtime
+ EARLY Parameter processed too early to be embedded in initrd.
+ EDD BIOS Enhanced Disk Drive Services (EDD) is enabled
+ EFI EFI Partitioning (GPT) is enabled
+ EVM Extended Verification Module
+ FB The frame buffer device is enabled.
+ FTRACE Function tracing enabled.
+ GCOV GCOV profiling is enabled.
+ HIBERNATION HIBERNATION is enabled.
+ HW Appropriate hardware is enabled.
+ HYPER_V HYPERV support is enabled.
+ IMA Integrity measurement architecture is enabled.
+ IP_PNP IP DHCP, BOOTP, or RARP is enabled.
+ IPV6 IPv6 support is enabled.
+ ISAPNP ISA PnP code is enabled.
+ ISDN Appropriate ISDN support is enabled.
+ ISOL CPU Isolation is enabled.
+ JOY Appropriate joystick support is enabled.
+ KGDB Kernel debugger support is enabled.
+ KVM Kernel Virtual Machine support is enabled.
+ LIBATA Libata driver is enabled
+ LOONGARCH LoongArch architecture is enabled.
+ LOOP Loopback device support is enabled.
+ LP Printer support is enabled.
+ M68k M68k architecture is enabled.
+ These options have more detailed description inside of
+ Documentation/arch/m68k/kernel-options.rst.
+ MDA MDA console support is enabled.
+ MIPS MIPS architecture is enabled.
+ MOUSE Appropriate mouse support is enabled.
+ MSI Message Signaled Interrupts (PCI).
+ MTD MTD (Memory Technology Device) support is enabled.
+ NET Appropriate network support is enabled.
+ NFS Appropriate NFS support is enabled.
+ NUMA NUMA support is enabled.
+ OF Devicetree is enabled.
+ PARISC The PA-RISC architecture is enabled.
+ PCI PCI bus support is enabled.
+ PCIE PCI Express support is enabled.
+ PCMCIA The PCMCIA subsystem is enabled.
+ PNP Plug & Play support is enabled.
+ PPC PowerPC architecture is enabled.
+ PPT Parallel port support is enabled.
+ PS2 Appropriate PS/2 support is enabled.
+ PV_OPS A paravirtualized kernel is enabled.
+ RAM RAM disk support is enabled.
+ RDT Intel Resource Director Technology.
+ RISCV RISCV architecture is enabled.
+ S390 S390 architecture is enabled.
+ SCSI Appropriate SCSI support is enabled.
+ A lot of drivers have their options described inside
+ the Documentation/scsi/ sub-directory.
+ SDW SoundWire support is enabled.
+ SECURITY Different security models are enabled.
+ SELINUX SELinux support is enabled.
+ SERIAL Serial support is enabled.
+ SH SuperH architecture is enabled.
+ SMP The kernel is an SMP kernel.
+ SPARC Sparc architecture is enabled.
+ SUSPEND System suspend states are enabled.
+ SWSUSP Software suspend (hibernation) is enabled.
+ TPM TPM drivers are enabled.
+ UMS USB Mass Storage support is enabled.
+ USB USB support is enabled.
+ USBHID USB Human Interface Device support is enabled.
+ V4L Video For Linux support is enabled.
+ VGA The VGA console has been enabled.
+ VMMIO Driver for memory mapped virtio devices is enabled.
+ VT Virtual terminal support is enabled.
+ WDT Watchdog support is enabled.
+ X86-32 X86-32, aka i386 architecture is enabled.
+ X86-64 X86-64 architecture is enabled.
+ X86 Either 32-bit or 64-bit x86 (same as X86-32+X86-64)
+ X86_UV SGI UV support is enabled.
+ XEN Xen support is enabled
+ XTENSA xtensa architecture is enabled.
+
+In addition, the following text indicates that the option
+
+ BOOT Is a boot loader parameter.
+ BUGS= Relates to possible processor bugs on the said processor.
+ KNL Is a kernel start-up parameter.
+
+
+Kernel parameters
+
+ accept_memory= [MM]
+ Format: { eager | lazy }
+ default: lazy
+ By default, unaccepted memory is accepted lazily to
+ avoid prolonged boot times. The lazy option will add
+ some runtime overhead until all memory is eventually
+ accepted. In most cases the overhead is negligible.
+ For some workloads or for debugging purposes
+ accept_memory=eager can be used to accept all memory
+ at once during boot.
+
+ acpi= [HW,ACPI,X86,ARM64,RISCV64,EARLY]
Advanced Configuration and Power Interface
Format: { force | on | off | strict | noirq | rsdt |
- copy_dsdt }
+ copy_dsdt | nospcr }
force -- enable ACPI if default was off
- on -- enable ACPI but allow fallback to DT [arm64]
+ on -- enable ACPI but allow fallback to DT [arm64,riscv64]
off -- disable ACPI if default was on
noirq -- do not use ACPI for IRQ routing
strict -- Be less tolerant of platforms that are not
strictly ACPI specification compliant.
rsdt -- prefer RSDT over (default) XSDT
copy_dsdt -- copy DSDT to memory
- For ARM64, ONLY "acpi=off", "acpi=on" or "acpi=force"
+ nocmcff -- Disable firmware first mode for corrected
+ errors. This disables parsing the HEST CMC error
+ source to check if firmware has set the FF flag. This
+ may result in duplicate corrected error reports.
+ nospcr -- disable console in ACPI SPCR table as
+ default _serial_ console on ARM64
+ For ARM64, ONLY "acpi=off", "acpi=on", "acpi=force" or
+ "acpi=nospcr" are available
+ For RISCV64, ONLY "acpi=off", "acpi=on" or "acpi=force"
are available
See also Documentation/power/runtime_pm.rst, pci=noacpi
- acpi_apic_instance= [ACPI, IOAPIC]
+ acpi_apic_instance= [ACPI,IOAPIC,EARLY]
Format: <int>
2: use 2nd APIC table, if available
1,0: use 1st APIC table
@@ -30,7 +147,7 @@
If set to native, use the device's native backlight mode.
If set to none, disable the ACPI backlight interface.
- acpi_force_32bit_fadt_addr
+ acpi_force_32bit_fadt_addr [ACPI,EARLY]
force FADT to use 32 bit addresses rather than the
64 bit X_* addresses. Some firmware have broken 64
bit addresses for force ACPI ignore these and use
@@ -86,7 +203,7 @@
no: ACPI OperationRegions are not marked as reserved,
no further checks are performed.
- acpi_force_table_verification [HW,ACPI]
+ acpi_force_table_verification [HW,ACPI,EARLY]
Enable table checksum verification during early stage.
By default, this is disabled due to x86 early mapping
size limitation.
@@ -126,7 +243,7 @@
acpi_no_memhotplug [ACPI] Disable memory hotplug. Useful for kdump
kernels.
- acpi_no_static_ssdt [HW,ACPI]
+ acpi_no_static_ssdt [HW,ACPI,EARLY]
Disable installation of static SSDTs at early boot time
By default, SSDTs contained in the RSDT/XSDT will be
installed automatically and they will appear under
@@ -140,7 +257,7 @@
Ignore the ACPI-based watchdog interface (WDAT) and let
a native driver control the watchdog device instead.
- acpi_rsdp= [ACPI,EFI,KEXEC]
+ acpi_rsdp= [ACPI,EFI,KEXEC,EARLY]
Pass the RSDP address to the kernel, mostly used
on machines running EFI runtime service to boot the
second kernel for kdump.
@@ -217,10 +334,10 @@
to assume that this machine's pmtimer latches its value
and always returns good values.
- acpi_sci= [HW,ACPI] ACPI System Control Interrupt trigger mode
+ acpi_sci= [HW,ACPI,EARLY] ACPI System Control Interrupt trigger mode
Format: { level | edge | high | low }
- acpi_skip_timer_override [HW,ACPI]
+ acpi_skip_timer_override [HW,ACPI,EARLY]
Recognize and ignore IRQ0/pin2 Interrupt Override.
For broken nForce2 BIOS resulting in XT-PIC timer.
@@ -255,11 +372,11 @@
behave incorrectly in some ways with respect to system
suspend and resume to be ignored (use wisely).
- acpi_use_timer_override [HW,ACPI]
+ acpi_use_timer_override [HW,ACPI,EARLY]
Use timer override. For some broken Nvidia NF5 boards
that require a timer override, but don't have HPET
- add_efi_memmap [EFI; X86] Include EFI memory map in
+ add_efi_memmap [EFI,X86,EARLY] Include EFI memory map in
kernel's map of available physical RAM.
agp= [AGP]
@@ -296,7 +413,7 @@
do not want to use tracing_snapshot_alloc() as it needs
to be done where GFP_KERNEL allocations are allowed.
- allow_mismatched_32bit_el0 [ARM64]
+ allow_mismatched_32bit_el0 [ARM64,EARLY]
Allow execve() of 32-bit applications and setting of the
PER_LINUX32 personality on systems where only a strict
subset of the CPUs support 32-bit EL0. When this
@@ -304,7 +421,7 @@
EL0 is indicated by /sys/devices/system/cpu/aarch32_el0
and hot-unplug operations may be restricted.
- See Documentation/arm64/asymmetric-32bit.rst for more
+ See Documentation/arch/arm64/asymmetric-32bit.rst for more
information.
amd_iommu= [HW,X86-64]
@@ -318,11 +435,17 @@
allowed anymore to lift isolation
requirements as needed. This option
does not override iommu=pt
- force_enable - Force enable the IOMMU on platforms known
- to be buggy with IOMMU enabled. Use this
- option with care.
- pgtbl_v1 - Use v1 page table for DMA-API (Default).
- pgtbl_v2 - Use v2 page table for DMA-API.
+ force_enable - Force enable the IOMMU on platforms known
+ to be buggy with IOMMU enabled. Use this
+ option with care.
+ pgtbl_v1 - Use v1 page table for DMA-API (Default).
+ pgtbl_v2 - Use v2 page table for DMA-API.
+ irtcachedis - Disable Interrupt Remapping Table (IRT) caching.
+ nohugepages - Limit page-sizes used for v1 page-tables
+ to 4 KiB.
+ v2_pgsizes_only - Limit page-sizes used for v1 page-tables
+ to 4KiB/2Mib/1GiB.
+
amd_iommu_dump= [HW,X86-64]
Enable AMD IOMMU driver option to dump the ACPI table
@@ -339,7 +462,7 @@
This mode requires kvm-amd.avic=1.
(Default when IOMMU HW support is present.)
- amd_pstate= [X86]
+ amd_pstate= [X86,EARLY]
disable
Do not enable amd_pstate as the default
scaling driver for the supported processors
@@ -362,6 +485,11 @@
selects a performance level in this range and appropriate
to the current workload.
+ amd_prefcore=
+ [X86]
+ disable
+ Disable amd-pstate preferred core.
+
amijoy.map= [HW,JOY] Amiga joystick support
Map of devices attached to JOY0DAT and JOY1DAT
Format: <a>,<b>
@@ -379,17 +507,15 @@
not play well with APC CPU idle - disable it if you have
APC and your system crashes randomly.
- apic= [APIC,X86] Advanced Programmable Interrupt Controller
+ apic [APIC,X86-64] Use IO-APIC. Default.
+
+ apic= [APIC,X86,EARLY] Advanced Programmable Interrupt Controller
Change the output verbosity while booting
Format: { quiet (default) | verbose | debug }
Change the amount of debugging information output
when initialising the APIC and IO-APIC components.
- For X86-32, this can also be used to specify an APIC
- driver name.
- Format: apic=driver_name
- Examples: apic=bigsmp
- apic_extnmi= [APIC,X86] External NMI delivery setting
+ apic_extnmi= [APIC,X86,EARLY] External NMI delivery setting
Format: { bsp (default) | all | none }
bsp: External NMI is delivered only to CPU 0
all: External NMIs are broadcast to all CPUs as a
@@ -398,6 +524,10 @@
useful so that a dump capture kernel won't be
shot down by NMI
+ apicpmtimer Do APIC timer calibration using the pmtimer. Implies
+ apicmaintimer. Useful when your PIT timer is totally
+ broken.
+
autoconf= [IPV6]
See Documentation/networking/ipv6.rst.
@@ -414,21 +544,33 @@
arcrimi= [HW,NET] ARCnet - "RIM I" (entirely mem-mapped) cards
Format: <io>,<irq>,<nodeID>
+ arm64.no32bit_el0 [ARM64] Unconditionally disable the execution of
+ 32 bit applications.
+
arm64.nobti [ARM64] Unconditionally disable Branch Target
Identification support
- arm64.nopauth [ARM64] Unconditionally disable Pointer Authentication
+ arm64.nogcs [ARM64] Unconditionally disable Guarded Control Stack
support
+ arm64.nomops [ARM64] Unconditionally disable Memory Copy and Memory
+ Set instructions support
+
+ arm64.nompam [ARM64] Unconditionally disable Memory Partitioning And
+ Monitoring support
+
arm64.nomte [ARM64] Unconditionally disable Memory Tagging Extension
support
- arm64.nosve [ARM64] Unconditionally disable Scalable Vector
- Extension support
+ arm64.nopauth [ARM64] Unconditionally disable Pointer Authentication
+ support
arm64.nosme [ARM64] Unconditionally disable Scalable Matrix
Extension support
+ arm64.nosve [ARM64] Unconditionally disable Scalable Vector
+ Extension support
+
ataflop= [HW,M68k]
atarimouse= [HW,MOUSE] Atari Mouse
@@ -490,24 +632,37 @@
Format: <io>,<irq>,<mode>
See header of drivers/net/hamradio/baycom_ser_hdx.c.
+ bdev_allow_write_mounted=
+ Format: <bool>
+ Control the ability to open a mounted block device
+ for writing, i.e., allow / disallow writes that bypass
+ the FS. This was implemented as a means to prevent
+ fuzzers from crashing the kernel by overwriting the
+ metadata underneath a mounted FS without its awareness.
+ This also prevents destructive formatting of mounted
+ filesystems by naive storage tooling that don't use
+ O_EXCL. Default is Y and can be changed through the
+ Kconfig option CONFIG_BLK_DEV_WRITE_MOUNTED.
+
bert_disable [ACPI]
Disable BERT OS support on buggy BIOSes.
- bgrt_disable [ACPI][X86]
+ bgrt_disable [ACPI,X86,EARLY]
Disable BGRT to avoid flickering OEM logo.
blkdevparts= Manual partition parsing of block device(s) for
embedded devices based on command line input.
See Documentation/block/cmdline-partition.rst
- boot_delay= Milliseconds to delay each printk during boot.
+ boot_delay= [KNL,EARLY]
+ Milliseconds to delay each printk during boot.
Only works if CONFIG_BOOT_PRINTK_DELAY is enabled,
and you may also have to specify "lpj=". Boot_delay
values larger than 10 seconds (10000) are assumed
erroneous and ignored.
Format: integer
- bootconfig [KNL]
+ bootconfig [KNL,EARLY]
Extended command line options can be added to an initrd
and this will cause the kernel to look for it.
@@ -542,14 +697,32 @@
trust validation.
format: { id:<keyid> | builtin }
- cca= [MIPS] Override the kernel pages' cache coherency
+ cca= [MIPS,EARLY] Override the kernel pages' cache coherency
algorithm. Accepted values range from 0 to 7
inclusive. See arch/mips/include/asm/pgtable-bits.h
for platform specific values (SB1, Loongson3 and
others).
ccw_timeout_log [S390]
- See Documentation/s390/common_io.rst for details.
+ See Documentation/arch/s390/common_io.rst for details.
+
+ cfi= [X86-64] Set Control Flow Integrity checking features
+ when CONFIG_FINEIBT is enabled.
+ Format: feature[,feature...]
+ Default: auto
+
+ auto: Use FineIBT if IBT available, otherwise kCFI.
+ Under FineIBT, enable "paranoid" mode when
+ FRED is not available.
+ off: Turn off CFI checking.
+ kcfi: Use kCFI (disable FineIBT).
+ fineibt: Use FineIBT (even if IBT not available).
+ norand: Do not re-randomize CFI hashes.
+ paranoid: Add caller hash checking under FineIBT.
+ bhi: Enable register poisoning to stop speculation
+ across FineIBT. (Disabled by default.)
+ warn: Do not enforce CFI checking: warn only.
+ debug: Report CFI initialization details.
cgroup_disable= [KNL] Disable a particular controller or optional feature
Format: {name of the controller(s) or feature(s) to disable}
@@ -576,12 +749,32 @@
named mounts. Specifying both "all" and "named" disables
all v1 hierarchies.
+ cgroup_v1_proc= [KNL] Show also missing controllers in /proc/cgroups
+ Format: { "true" | "false" }
+ /proc/cgroups lists only v1 controllers by default.
+ This compatibility option enables listing also v2
+ controllers (whose v1 code is not compiled!), so that
+ semi-legacy software can check this file to decide
+ about usage of v2 (sic) controllers.
+
+ cgroup_favordynmods= [KNL] Enable or Disable favordynmods.
+ Format: { "true" | "false" }
+ Defaults to the value of CONFIG_CGROUP_FAVOR_DYNMODS.
+
cgroup.memory= [KNL] Pass options to the cgroup memory controller.
Format: <string>
nosocket -- Disable socket memory accounting.
nokmem -- Disable kernel memory accounting.
nobpf -- Disable BPF memory accounting.
+ check_pages= [MM,EARLY] Enable sanity checking of pages after
+ allocations / before freeing. This adds checks to catch
+ double-frees, use-after-frees, and other sources of
+ page corruption by inspecting page internals (flags,
+ mapcount/refcount, memcg_data, etc.).
+ Format: { "0" | "1" }
+ Default: 0 (1 if CONFIG_DEBUG_VM is set)
+
checkreqprot= [SELINUX] Set initial checkreqprot flag value.
Format: { "0" | "1" }
See security/selinux/Kconfig help text.
@@ -594,7 +787,7 @@
Setting checkreqprot to 1 is deprecated.
cio_ignore= [S390]
- See Documentation/s390/common_io.rst for details.
+ See Documentation/arch/s390/common_io.rst for details.
clearcpuid=X[,X...] [X86]
Disable CPUID feature X for the kernel. See
@@ -653,19 +846,13 @@
[X86-64] hpet,tsc
clocksource.arm_arch_timer.evtstrm=
- [ARM,ARM64]
+ [ARM,ARM64,EARLY]
Format: <bool>
Enable/disable the eventstream feature of the ARM
architected timer so that code using WFE-based polling
loops can be debugged more effectively on production
systems.
- clocksource.max_cswd_read_retries= [KNL]
- Number of clocksource_watchdog() retries due to
- external delays before the clock will be marked
- unstable. Defaults to two retries, that is,
- three attempts to read the clock under test.
-
clocksource.verify_n_cpus= [KNL]
Limit the number of CPUs checked for clocksources
marked with CLOCK_SOURCE_VERIFY_PERCPU that
@@ -683,7 +870,7 @@
10 seconds when built into the kernel.
cma=nn[MG]@[start[MG][-end[MG]]]
- [KNL,CMA]
+ [KNL,CMA,EARLY]
Sets the size of kernel global memory area for
contiguous memory allocations and optionally the
placement constraint by the physical address range of
@@ -692,7 +879,7 @@
kernel/dma/contiguous.c
cma_pernuma=nn[MG]
- [ARM64,KNL,CMA]
+ [KNL,CMA,EARLY]
Sets the size of kernel per-numa memory area for
contiguous memory allocations. A value of 0 disables
per-numa CMA altogether. And If this option is not
@@ -702,6 +889,17 @@
which is located in node nid, if the allocation fails,
they will fallback to the global default memory area.
+ numa_cma=<node>:nn[MG][,<node>:nn[MG]]
+ [KNL,CMA,EARLY]
+ Sets the size of kernel numa memory area for
+ contiguous memory allocations. It will reserve CMA
+ area for the specified node.
+
+ With numa CMA enabled, DMA users on node nid will
+ first try to allocate buffer from the numa area
+ which is located in node nid, if the allocation fails,
+ they will fallback to the global default memory area.
+
cmo_free_hint= [PPC] Format: { yes | no }
Specify whether pages are marked as being inactive
when they are freed. This is used in CMO environments
@@ -709,7 +907,7 @@
a hypervisor.
Default: yes
- coherent_pool=nn[KMG] [ARM,KNL]
+ coherent_pool=nn[KMG] [ARM,KNL,EARLY]
Sets the size of memory pool for coherent, atomic dma
allocations, by default set to 256K.
@@ -727,7 +925,7 @@
condev= [HW,S390] console device
conmode=
- con3215_drop= [S390] 3215 console drop mode.
+ con3215_drop= [S390,EARLY] 3215 console drop mode.
Format: y|n|Y|N|1|0
When set to true, drop data on the 3215 console when
the console buffer is full. In this case the
@@ -755,6 +953,25 @@
Documentation/networking/netconsole.rst for an
alternative.
+ <DEVNAME>:<n>.<n>[,options]
+ Use the specified serial port on the serial core bus.
+ The addressing uses DEVNAME of the physical serial port
+ device, followed by the serial core controller instance,
+ and the serial port instance. The options are the same
+ as documented for the ttyS addressing above.
+
+ The mapping of the serial ports to the tty instances
+ can be viewed with:
+
+ $ ls -d /sys/bus/serial-base/devices/*:*.*/tty/*
+ /sys/bus/serial-base/devices/00:04:0.0/tty/ttyS0
+
+ In the above example, the console can be addressed with
+ console=00:04:0.0. Note that a console addressed this
+ way will only get added when the related device driver
+ is ready. The use of an earlycon parameter in addition to
+ the console may be desired for console output early on.
+
uart[8250],io,<addr>[,options]
uart[8250],mmio,<addr>[,options]
uart[8250],mmio16,<addr>[,options]
@@ -818,20 +1035,6 @@
Format:
<first_slot>,<last_slot>,<port>,<enum_bit>[,<debug>]
- cpu0_hotplug [X86] Turn on CPU0 hotplug feature when
- CONFIG_BOOTPARAM_HOTPLUG_CPU0 is off.
- Some features depend on CPU0. Known dependencies are:
- 1. Resume from suspend/hibernate depends on CPU0.
- Suspend/hibernate will fail if CPU0 is offline and you
- need to online CPU0 before suspend/hibernate.
- 2. PIC interrupts also depend on CPU0. CPU0 can't be
- removed if a PIC interrupt is detected.
- It's said poweroff/reboot may depend on CPU0 on some
- machines although I haven't seen such issues so far
- after CPU0 is offline on a few tested machines.
- If the dependencies are under your control, you can
- turn on cpu0_hotplug.
-
cpuidle.off=1 [CPU_IDLE]
disable the cpuidle sub-system
@@ -847,28 +1050,38 @@
kernel before the cpufreq driver probes.
cpu_init_udelay=N
- [X86] Delay for N microsec between assert and de-assert
+ [X86,EARLY] Delay for N microsec between assert and de-assert
of APIC INIT to start processors. This delay occurs
on every CPU online, such as boot, and resume from suspend.
Default: 10000
+ cpuhp.parallel=
+ [SMP] Enable/disable parallel bringup of secondary CPUs
+ Format: <bool>
+ Default is enabled if CONFIG_HOTPLUG_PARALLEL=y. Otherwise
+ the parameter has no effect.
+
crash_kexec_post_notifiers
- Run kdump after running panic-notifiers and dumping
- kmsg. This only for the users who doubt kdump always
- succeeds in any situation.
- Note that this also increases risks of kdump failure,
- because some panic notifiers can make the crashed
- kernel more unstable.
+ Only jump to kdump kernel after running the panic
+ notifiers and dumping kmsg. This option increases
+ the risks of a kdump failure, since some panic
+ notifiers can make the crashed kernel more unstable.
+ In configurations where kdump may not be reliable,
+ running the panic notifiers could allow collecting
+ more data on dmesg, like stack traces from other CPUS
+ or extra data dumped by panic_print. Note that some
+ configurations enable this option unconditionally,
+ like Hyper-V, PowerPC (fadump) and AMD SEV-SNP.
crashkernel=size[KMG][@offset[KMG]]
- [KNL] Using kexec, Linux can switch to a 'crash kernel'
+ [KNL,EARLY] Using kexec, Linux can switch to a 'crash kernel'
upon panic. This parameter reserves the physical
memory region [offset, offset + size] for that kernel
image. If '@offset' is omitted, then a suitable offset
is selected automatically.
- [KNL, X86-64, ARM64] Select a region under 4G first, and
- fall back to reserve region above 4G when '@offset'
- hasn't been specified.
+ [KNL, X86-64, ARM64, RISCV, LoongArch] Select a region
+ under 4G first, and fall back to reserve region above
+ 4G when '@offset' hasn't been specified.
See Documentation/admin-guide/kdump/kdump.rst for further details.
crashkernel=range1:size1[,range2:size2,...][@offset]
@@ -879,29 +1092,54 @@
Documentation/admin-guide/kdump/kdump.rst for an example.
crashkernel=size[KMG],high
- [KNL, X86-64, ARM64] range could be above 4G. Allow kernel
- to allocate physical memory region from top, so could
- be above 4G if system have more than 4G ram installed.
- Otherwise memory region will be allocated below 4G, if
- available.
+ [KNL, X86-64, ARM64, RISCV, LoongArch] range could be
+ above 4G.
+ Allow kernel to allocate physical memory region from top,
+ so could be above 4G if system have more than 4G ram
+ installed. Otherwise memory region will be allocated
+ below 4G, if available.
It will be ignored if crashkernel=X is specified.
crashkernel=size[KMG],low
- [KNL, X86-64, ARM64] range under 4G. When crashkernel=X,high
- is passed, kernel could allocate physical memory region
- above 4G, that cause second kernel crash on system
- that require some amount of low memory, e.g. swiotlb
- requires at least 64M+32K low memory, also enough extra
- low memory is needed to make sure DMA buffers for 32-bit
- devices won't run out. Kernel would try to allocate
+ [KNL, X86-64, ARM64, RISCV, LoongArch] range under 4G.
+ When crashkernel=X,high is passed, kernel could allocate
+ physical memory region above 4G, that cause second kernel
+ crash on system that require some amount of low memory,
+ e.g. swiotlb requires at least 64M+32K low memory, also
+ enough extra low memory is needed to make sure DMA buffers
+ for 32-bit devices won't run out. Kernel would try to allocate
default size of memory below 4G automatically. The default
size is platform dependent.
--> x86: max(swiotlb_size_or_default() + 8MiB, 256MiB)
--> arm64: 128MiB
+ --> riscv: 128MiB
+ --> loongarch: 128MiB
This one lets the user specify own low range under 4G
for second kernel instead.
0: to disable low allocation.
It will be ignored when crashkernel=X,high is not used
or memory reserved is below 4G.
+ crashkernel=size[KMG],cma
+ [KNL, X86, ppc] Reserve additional crash kernel memory from
+ CMA. This reservation is usable by the first system's
+ userspace memory and kernel movable allocations (memory
+ balloon, zswap). Pages allocated from this memory range
+ will not be included in the vmcore so this should not
+ be used if dumping of userspace memory is intended and
+ it has to be expected that some movable kernel pages
+ may be missing from the dump.
+
+ A standard crashkernel reservation, as described above,
+ is still needed to hold the crash kernel and initrd.
+
+ This option increases the risk of a kdump failure: DMA
+ transfers configured by the first kernel may end up
+ corrupting the second kernel's memory.
+
+ This reservation method is intended for systems that
+ can't afford to sacrifice enough memory for standard
+ crashkernel reservation and where less reliable and
+ possibly incomplete kdump is preferable to no kdump at
+ all.
cryptomgr.notests
[KNL] Disable crypto self-tests
@@ -929,10 +1167,10 @@
Format: <port#>,<type>
See also Documentation/input/devices/joystick-parport.rst
- debug [KNL] Enable kernel debugging (events log level).
+ debug [KNL,EARLY] Enable kernel debugging (events log level).
debug_boot_weak_hash
- [KNL] Enable printing [hashed] pointers early in the
+ [KNL,EARLY] Enable printing [hashed] pointers early in the
boot sequence. If enabled, we use a weak hash instead
of siphash to hash pointers. Use this option if you are
seeing instances of '(___ptrval___)') and need to see a
@@ -949,29 +1187,29 @@
will print _a_lot_ more information - normally only
useful to lockdep developers.
- debug_objects [KNL] Enable object debugging
+ debug_objects [KNL,EARLY] Enable object debugging
debug_guardpage_minorder=
- [KNL] When CONFIG_DEBUG_PAGEALLOC is set, this
+ [KNL,EARLY] When CONFIG_DEBUG_PAGEALLOC is set, this
parameter allows control of the order of pages that will
be intentionally kept free (and hence protected) by the
buddy allocator. Bigger value increase the probability
of catching random memory corruption, but reduce the
amount of memory for normal system use. The maximum
- possible value is MAX_ORDER/2. Setting this parameter
- to 1 or 2 should be enough to identify most random
- memory corruption problems caused by bugs in kernel or
- driver code when a CPU writes to (or reads from) a
- random memory location. Note that there exists a class
- of memory corruptions problems caused by buggy H/W or
- F/W or by drivers badly programming DMA (basically when
- memory is written at bus level and the CPU MMU is
- bypassed) which are not detectable by
- CONFIG_DEBUG_PAGEALLOC, hence this option will not help
- tracking down these problems.
+ possible value is MAX_PAGE_ORDER/2. Setting this
+ parameter to 1 or 2 should be enough to identify most
+ random memory corruption problems caused by bugs in
+ kernel or driver code when a CPU writes to (or reads
+ from) a random memory location. Note that there exists
+ a class of memory corruptions problems caused by buggy
+ H/W or F/W or by drivers badly programming DMA
+ (basically when memory is written at bus level and the
+ CPU MMU is bypassed) which are not detectable by
+ CONFIG_DEBUG_PAGEALLOC, hence this option will not
+ help tracking down these problems.
debug_pagealloc=
- [KNL] When CONFIG_DEBUG_PAGEALLOC is set, this parameter
+ [KNL,EARLY] When CONFIG_DEBUG_PAGEALLOC is set, this parameter
enables the feature at boot time. By default, it is
disabled and the system will work mostly the same as a
kernel built without CONFIG_DEBUG_PAGEALLOC.
@@ -979,14 +1217,10 @@
useful to also enable the page_owner functionality.
on: enable the feature
- debugfs= [KNL] This parameter enables what is exposed to userspace
- and debugfs internal clients.
- Format: { on, no-mount, off }
+ debugfs= [KNL,EARLY] This parameter enables what is exposed to
+ userspace and debugfs internal clients.
+ Format: { on, off }
on: All functions are enabled.
- no-mount:
- Filesystem is not registered but kernel clients can
- access APIs and a crashkernel can be used to read
- its content. There is nothing to mount.
off: Filesystem is not registered and clients
get a -EPERM as result when trying to register files
or directories within debugfs.
@@ -1059,7 +1293,7 @@
dhash_entries= [KNL]
Set number of hash buckets for dentry cache.
- disable_1tb_segments [PPC]
+ disable_1tb_segments [PPC,EARLY]
Disables the use of 1TB hash page table segments. This
causes the kernel to fall back to 256MB segments which
can be useful when debugging issues that require an SLB
@@ -1068,41 +1302,32 @@
disable= [IPV6]
See Documentation/networking/ipv6.rst.
- disable_radix [PPC]
+ disable_radix [PPC,EARLY]
Disable RADIX MMU mode on POWER9
disable_tlbie [PPC]
Disable TLBIE instruction. Currently does not work
with KVM, with HASH MMU, or with coherent accelerators.
- disable_cpu_apicid= [X86,APIC,SMP]
- Format: <int>
- The number of initial APIC ID for the
- corresponding CPU to be disabled at boot,
- mostly used for the kdump 2nd kernel to
- disable BSP to wake up multiple CPUs without
- causing system reset or hang due to sending
- INIT from AP to BSP.
-
- disable_ddw [PPC/PSERIES]
+ disable_ddw [PPC/PSERIES,EARLY]
Disable Dynamic DMA Window support. Use this
to workaround buggy firmware.
disable_ipv6= [IPV6]
See Documentation/networking/ipv6.rst.
- disable_mtrr_cleanup [X86]
+ disable_mtrr_cleanup [X86,EARLY]
The kernel tries to adjust MTRR layout from continuous
to discrete, to make X server driver able to add WB
entry later. This parameter disables that.
- disable_mtrr_trim [X86, Intel and AMD only]
+ disable_mtrr_trim [X86, Intel and AMD only,EARLY]
By default the kernel will trim any uncacheable
memory out of your available memory pool based on
MTRR settings. This parameter disables that behavior,
possibly causing your machine to run very slowly.
- disable_timer_pin_1 [X86]
+ disable_timer_pin_1 [X86,EARLY]
Disable PIN 1 of APIC timer
Can be useful to work around chipset bugs.
@@ -1125,6 +1350,26 @@
The filter can be disabled or changed to another
driver later using sysfs.
+ reg_file_data_sampling=
+ [X86] Controls mitigation for Register File Data
+ Sampling (RFDS) vulnerability. RFDS is a CPU
+ vulnerability which may allow userspace to infer
+ kernel data values previously stored in floating point
+ registers, vector registers, or integer registers.
+ RFDS only affects Intel Atom processors.
+
+ on: Turns ON the mitigation.
+ off: Turns OFF the mitigation.
+
+ This parameter overrides the compile time default set
+ by CONFIG_MITIGATION_RFDS. Mitigation cannot be
+ disabled when other VERW based mitigations (like MDS)
+ are enabled. In order to disable RFDS mitigation all
+ VERW based mitigations need to be disabled.
+
+ For details see:
+ Documentation/admin-guide/hw-vuln/reg-file-data-sampling.rst
+
driver_async_probe= [KNL]
List of driver names to be probed asynchronously. *
matches with all driver names. If * is specified, the
@@ -1137,22 +1382,16 @@
panels may send no or incorrect EDID data sets.
This parameter allows to specify an EDID data sets
in the /lib/firmware directory that are used instead.
- Generic built-in EDID data sets are used, if one of
- edid/1024x768.bin, edid/1280x1024.bin,
- edid/1680x1050.bin, or edid/1920x1080.bin is given
- and no file with the same name exists. Details and
- instructions how to build your own EDID data are
- available in Documentation/admin-guide/edid.rst. An EDID
- data set will only be used for a particular connector,
- if its name and a colon are prepended to the EDID
- name. Each connector may use a unique EDID data
- set by separating the files with a comma. An EDID
+ An EDID data set will only be used for a particular
+ connector, if its name and a colon are prepended to
+ the EDID name. Each connector may use a unique EDID
+ data set by separating the files with a comma. An EDID
data set with no connector name will be used for
any connectors not explicitly specified.
dscc4.setup= [NET]
- dt_cpu_ftrs= [PPC]
+ dt_cpu_ftrs= [PPC,EARLY]
Format: {"off" | "known"}
Control how the dt_cpu_ftrs device-tree binding is
used for CPU feature discovery and setup (if it
@@ -1172,12 +1411,12 @@
Documentation/admin-guide/dynamic-debug-howto.rst
for details.
- early_ioremap_debug [KNL]
+ early_ioremap_debug [KNL,EARLY]
Enable debug messages in early_ioremap support. This
is useful for tracking down temporary early mappings
which are not unmapped.
- earlycon= [KNL] Output early console device and options.
+ earlycon= [KNL,EARLY] Output early console device and options.
When used with no options, the early console is
determined by stdout-path property in device tree's
@@ -1313,7 +1552,7 @@
address must be provided, and the serial port must
already be setup and configured.
- earlyprintk= [X86,SH,ARM,M68k,S390]
+ earlyprintk= [X86,SH,ARM,M68k,S390,UM,EARLY]
earlyprintk=vga
earlyprintk=sclp
earlyprintk=xen
@@ -1321,13 +1560,18 @@
earlyprintk=serial[,0x...[,baudrate]]
earlyprintk=ttySn[,baudrate]
earlyprintk=dbgp[debugController#]
- earlyprintk=pciserial[,force],bus:device.function[,baudrate]
+ earlyprintk=mmio32,membase[,{nocfg|baudrate}]
+ earlyprintk=pciserial[,force],bus:device.function[,{nocfg|baudrate}]
earlyprintk=xdbc[xhciController#]
+ earlyprintk=bios
earlyprintk is useful when the kernel crashes before
the normal console is initialized. It is not enabled by
default because it has some cosmetic problems.
+ Use "nocfg" to skip UART configuration, assume
+ BIOS/firmware has configured UART correctly.
+
Append ",keep" to not disable it when the real console
takes over.
@@ -1353,6 +1597,8 @@
The sclp output can only be used on s390.
+ The bios output can only be used on SuperH.
+
The optional "force" to "pciserial" enables use of a
PCI device even when its classcode is not of the
UART class.
@@ -1368,7 +1614,7 @@
edd= [EDD]
Format: {"off" | "on" | "skip[mbr]"}
- efi= [EFI]
+ efi= [EFI,EARLY]
Format: { "debug", "disable_early_pci_dma",
"nochunk", "noruntime", "nosoftreserve",
"novamap", "no_disable_early_pci_dma" }
@@ -1389,33 +1635,12 @@
no_disable_early_pci_dma: Leave the busmaster bit set
on all PCI bridges while in the EFI boot stub
- efi_no_storage_paranoia [EFI; X86]
+ efi_no_storage_paranoia [EFI,X86,EARLY]
Using this parameter you can use more than 50% of
your efi variable storage. Use this parameter only if
you are really sure that your UEFI does sane gc and
fulfills the spec otherwise your board may brick.
- efi_fake_mem= nn[KMG]@ss[KMG]:aa[,nn[KMG]@ss[KMG]:aa,..] [EFI; X86]
- Add arbitrary attribute to specific memory range by
- updating original EFI memory map.
- Region of memory which aa attribute is added to is
- from ss to ss+nn.
-
- If efi_fake_mem=2G@4G:0x10000,2G@0x10a0000000:0x10000
- is specified, EFI_MEMORY_MORE_RELIABLE(0x10000)
- attribute is added to range 0x100000000-0x180000000 and
- 0x10a0000000-0x1120000000.
-
- If efi_fake_mem=8G@9G:0x40000 is specified, the
- EFI_MEMORY_SP(0x40000) attribute is added to
- range 0x240000000-0x43fffffff.
-
- Using this parameter you can do debugging of EFI memmap
- related features. For example, you can do debugging of
- Address Range Mirroring feature even if your box
- doesn't support it, or mark specific memory as
- "soft reserved".
-
efivar_ssdt= [EFI; X86] Name of an EFI variable that contains an SSDT
that is to be dynamically loaded by Linux. If there are
multiple variables with the same name but with different
@@ -1426,7 +1651,7 @@
eisa_irq_edge= [PARISC,HW]
See header of drivers/parisc/eisa.c.
- ekgdboc= [X86,KGDB] Allow early kernel console debugging
+ ekgdboc= [X86,KGDB,EARLY] Allow early kernel console debugging
Format: ekgdboc=kbd
This is designed to be used in conjunction with
@@ -1441,13 +1666,13 @@
See comment before function elanfreq_setup() in
arch/x86/kernel/cpu/cpufreq/elanfreq.c.
- elfcorehdr=[size[KMG]@]offset[KMG] [IA64,PPC,SH,X86,S390]
+ elfcorehdr=[size[KMG]@]offset[KMG] [PPC,SH,X86,S390,EARLY]
Specifies physical address of start of kernel core
image elf header and optionally the size. Generally
kexec loader will pass this option to capture kernel.
See Documentation/admin-guide/kdump/kdump.rst for details.
- enable_mtrr_cleanup [X86]
+ enable_mtrr_cleanup [X86,EARLY]
The kernel tries to adjust MTRR layout from continuous
to discrete, to make X server driver able to add WB
entry later. This parameter enables that.
@@ -1480,7 +1705,7 @@
Permit 'security.evm' to be updated regardless of
current integrity status.
- early_page_ext [KNL] Enforces page_ext initialization to earlier
+ early_page_ext [KNL,EARLY] Enforces page_ext initialization to earlier
stages so cover more early boot allocations.
Please note that as side effect some optimizations
might be disabled to achieve that (e.g. parallelized
@@ -1491,6 +1716,7 @@
failslab=
fail_usercopy=
fail_page_alloc=
+ fail_skb_realloc=
fail_make_request=[KNL]
General fault injection mechanism.
Format: <interval>,<probability>,<space>,<times>
@@ -1504,12 +1730,6 @@
floppy= [HW]
See Documentation/admin-guide/blockdev/floppy.rst.
- force_pal_cache_flush
- [IA-64] Avoid check_sal_cache_flush which may hang on
- buggy SAL_CACHE_FLUSH implementations. Using this
- parameter will force ia64_sal_cache_flush to call
- ia64_pal_cache_flush instead of SAL_CACHE_FLUSH.
-
forcepae [X86-32]
Forcefully enable Physical Address Extension (PAE).
Many Pentium M systems disable PAE but may have a
@@ -1517,6 +1737,12 @@
Warning: use of this parameter will taint the kernel
and may cause unknown problems.
+ fred= [X86-64]
+ Enable/disable Flexible Return and Event Delivery.
+ Format: { on | off }
+ on: enable FRED when it's present.
+ off: disable FRED, the default setting.
+
ftrace=[tracer]
[FTRACE] will set and start the specified tracer
as early as possible in order to facilitate early
@@ -1539,12 +1765,28 @@
The above will cause the "foo" tracing instance to trigger
a snapshot at the end of boot up.
- ftrace_dump_on_oops[=orig_cpu]
+ ftrace_dump_on_oops[=2(orig_cpu) | =<instance>][,<instance> |
+ ,<instance>=2(orig_cpu)]
[FTRACE] will dump the trace buffers on oops.
- If no parameter is passed, ftrace will dump
- buffers of all CPUs, but if you pass orig_cpu, it will
- dump only the buffer of the CPU that triggered the
- oops.
+ If no parameter is passed, ftrace will dump global
+ buffers of all CPUs, if you pass 2 or orig_cpu, it
+ will dump only the buffer of the CPU that triggered
+ the oops, or the specific instance will be dumped if
+ its name is passed. Multiple instance dump is also
+ supported, and instances are separated by commas. Each
+ instance supports only dump on CPU that triggered the
+ oops by passing 2 or orig_cpu to it.
+
+ ftrace_dump_on_oops=foo=orig_cpu
+
+ The above will dump only the buffer of "foo" instance
+ on CPU that triggered the oops.
+
+ ftrace_dump_on_oops,foo,bar=orig_cpu
+
+ The above will dump global buffer on all CPUs, the
+ buffer of "foo" instance on all CPUs and the buffer
+ of "bar" instance on CPU that triggered the oops.
ftrace_filter=[function-list]
[FTRACE] Limit the functions traced by the function
@@ -1578,7 +1820,7 @@
can be changed at run time by the max_graph_depth file
in the tracefs tracing directory. default: 0 (no limit)
- fw_devlink= [KNL] Create device links between consumer and supplier
+ fw_devlink= [KNL,EARLY] Create device links between consumer and supplier
devices by scanning the firmware to infer the
consumer/supplier relationships. This feature is
especially useful when drivers are loaded as modules as
@@ -1597,12 +1839,12 @@
rpm -- Like "on", but also use to order runtime PM.
fw_devlink.strict=<bool>
- [KNL] Treat all inferred dependencies as mandatory
+ [KNL,EARLY] Treat all inferred dependencies as mandatory
dependencies. This only applies for fw_devlink=on|rpm.
Format: <bool>
fw_devlink.sync_state =
- [KNL] When all devices that could probe have finished
+ [KNL,EARLY] When all devices that could probe have finished
probing, this parameter controls what to do with
devices that haven't yet received their sync_state()
calls.
@@ -1623,10 +1865,32 @@
gamma= [HW,DRM]
- gart_fix_e820= [X86-64] disable the fix e820 for K8 GART
+ gart_fix_e820= [X86-64,EARLY] disable the fix e820 for K8 GART
Format: off | on
default: on
+ gather_data_sampling=
+ [X86,INTEL,EARLY] Control the Gather Data Sampling (GDS)
+ mitigation.
+
+ Gather Data Sampling is a hardware vulnerability which
+ allows unprivileged speculative access to data which was
+ previously stored in vector registers.
+
+ This issue is mitigated by default in updated microcode.
+ The mitigation may have a performance impact but can be
+ disabled. On systems without the microcode mitigation
+ disabling AVX serves as a mitigation.
+
+ force: Disable AVX to mitigate systems without
+ microcode mitigation. No effect if the microcode
+ mitigation is present. Known to cause crashes in
+ userspace with buggy AVX enumeration.
+
+ off: Disable GDS mitigation.
+
+ gbpages [X86] Use GB pages for kernel direct mappings.
+
gcov_persist= [GCOV] When non-zero (default), profiling data for
kernel modules is saved and remains accessible via
debugfs, even when the module is unloaded/reloaded.
@@ -1674,7 +1938,9 @@
allocation boundaries as a proactive defense
against bounds-checking flaws in the kernel's
copy_to_user()/copy_from_user() interface.
- on Perform hardened usercopy checks (default).
+ The default is determined by
+ CONFIG_HARDENED_USERCOPY_DEFAULT_ON.
+ on Perform hardened usercopy checks.
off Disable hardened usercopy checks.
hardlockup_all_cpu_backtrace=
@@ -1682,13 +1948,32 @@
backtraces on all cpus.
Format: 0 | 1
+ hash_pointers=
+ [KNL,EARLY]
+ By default, when pointers are printed to the console
+ or buffers via the %p format string, that pointer is
+ "hashed", i.e. obscured by hashing the pointer value.
+ This is a security feature that hides actual kernel
+ addresses from unprivileged users, but it also makes
+ debugging the kernel more difficult since unequal
+ pointers can no longer be compared. The choices are:
+ Format: { auto | always | never }
+ Default: auto
+
+ auto - Hash pointers unless slab_debug is enabled.
+ always - Always hash pointers (even if slab_debug is
+ enabled).
+ never - Never hash pointers. This option should only
+ be specified when debugging the kernel. Do
+ not use on production kernels. The boot
+ param "no_hash_pointers" is an alias for
+ this mode.
+
hashdist= [KNL,NUMA] Large hashes allocated during boot
are distributed across NUMA nodes. Defaults on
for 64-bit NUMA, off otherwise.
Format: 0 | 1 (for off | on)
- hcl= [IA-64] SGI's Hardware Graph compatibility layer
-
hd= [EIDE] (E)IDE hard drive subsystem geometry
Format: <cyl>,<head>,<sect>
@@ -1706,7 +1991,35 @@
(that will set all pages holding image data
during restoration read-only).
- highmem=nn[KMG] [KNL,BOOT] forces the highmem zone to have an exact
+ hibernate.compressor= [HIBERNATION] Compression algorithm to be
+ used with hibernation.
+ Format: { lzo | lz4 }
+ Default: lzo
+
+ lzo: Select LZO compression algorithm to
+ compress/decompress hibernation image.
+
+ lz4: Select LZ4 compression algorithm to
+ compress/decompress hibernation image.
+
+ hibernate.pm_test_delay=
+ [HIBERNATION]
+ Sets the number of seconds to remain in a hibernation test
+ mode before resuming the system (see
+ /sys/power/pm_test). Only available when CONFIG_PM_DEBUG
+ is set. Default value is 5.
+
+ hibernate_compression_threads=
+ [HIBERNATION]
+ Set the number of threads used for compressing or decompressing
+ hibernation images.
+
+ Format: <integer>
+ Default: 3
+ Minimum: 1
+ Example: hibernate_compression_threads=4
+
+ highmem=nn[KMG] [KNL,BOOT,EARLY] forces the highmem zone to have an exact
size of <nn>. This works even on boxes that have no
highmem otherwise. This also works to reduce highmem
size on bigger boxes.
@@ -1717,7 +2030,7 @@
hlt [BUGS=ARM,SH]
- hostname= [KNL] Set the hostname (aka UTS nodename).
+ hostname= [KNL,EARLY] Set the hostname (aka UTS nodename).
Format: <string>
This allows setting the system's hostname during early
startup. This sets the name returned by gethostname.
@@ -1741,7 +2054,7 @@
hpet_mmap= [X86, HPET_MMAP] Allow userspace to mmap HPET
registers. Default set by CONFIG_HPET_MMAP_DEFAULT.
- hugepages= [HW] Number of HugeTLB pages to allocate at boot.
+ hugepages= [HW,EARLY] Number of HugeTLB pages to allocate at boot.
If this follows hugepagesz (below), it specifies
the number of pages of hugepagesz to be allocated.
If this is the first HugeTLB parameter on the command
@@ -1753,16 +2066,25 @@
<node>:<integer>[,<node>:<integer>]
hugepagesz=
- [HW] The size of the HugeTLB pages. This is used in
- conjunction with hugepages (above) to allocate huge
- pages of a specific size at boot. The pair
- hugepagesz=X hugepages=Y can be specified once for
- each supported huge page size. Huge page sizes are
- architecture dependent. See also
+ [HW,EARLY] The size of the HugeTLB pages. This is
+ used in conjunction with hugepages (above) to
+ allocate huge pages of a specific size at boot. The
+ pair hugepagesz=X hugepages=Y can be specified once
+ for each supported huge page size. Huge page sizes
+ are architecture dependent. See also
Documentation/admin-guide/mm/hugetlbpage.rst.
Format: size[KMG]
- hugetlb_cma= [HW,CMA] The size of a CMA area used for allocation
+ hugepage_alloc_threads=
+ [HW] The number of threads that should be used to
+ allocate hugepages during boot. This option can be
+ used to improve system bootup time when allocating
+ a large amount of huge pages.
+ The default value is 25% of the available hardware threads.
+
+ Note that this parameter only applies to non-gigantic huge pages.
+
+ hugetlb_cma= [HW,CMA,EARLY] The size of a CMA area used for allocation
of gigantic hugepages. Or using node format, the size
of a CMA area per node can be specified.
Format: nn[KMGTPE] or (node format)
@@ -1772,6 +2094,13 @@
hugepages using the CMA allocator. If enabled, the
boot-time allocation of gigantic hugepages is skipped.
+ hugetlb_cma_only=
+ [HW,CMA,EARLY] When allocating new HugeTLB pages, only
+ try to allocate from the CMA areas.
+
+ This option does nothing if hugetlb_cma= is not also
+ specified.
+
hugetlb_free_vmemmap=
[KNL] Requires CONFIG_HUGETLB_PAGE_OPTIMIZE_VMEMMAP
enabled.
@@ -1793,14 +2122,20 @@
the added memory block itself do not be affected.
hung_task_panic=
- [KNL] Should the hung task detector generate panics.
- Format: 0 | 1
+ [KNL] Number of hung tasks to trigger kernel panic.
+ Format: <int>
+
+ When set to a non-zero value, a kernel panic will be triggered if
+ the number of detected hung tasks reaches this value.
- A value of 1 instructs the kernel to panic when a
- hung task is detected. The default value is controlled
- by the CONFIG_BOOTPARAM_HUNG_TASK_PANIC build-time
- option. The value selected by this boot parameter can
- be changed later by the kernel.hung_task_panic sysctl.
+ 0: don't panic
+ 1: panic immediately on first hung task
+ N: panic after N hung tasks are detected in a single scan
+
+ The default value is controlled by the
+ CONFIG_BOOTPARAM_HUNG_TASK_PANIC build-time option. The value
+ selected by this boot parameter can be changed later by the
+ kernel.hung_task_panic sysctl.
hvc_iucv= [S390] Number of z/VM IUCV hypervisor console (HVC)
terminal devices. Valid values: 0..8
@@ -1808,9 +2143,16 @@
If specified, z/VM IUCV HVC accepts connections
from listed z/VM user IDs only.
- hv_nopvspin [X86,HYPER_V] Disables the paravirt spinlock optimizations
- which allow the hypervisor to 'idle' the
- guest on lock contention.
+ hv_nopvspin [X86,HYPER_V,EARLY]
+ Disables the paravirt spinlock optimizations
+ which allow the hypervisor to 'idle' the guest
+ on lock contention.
+
+ hw_protection= [HW]
+ Format: reboot | shutdown
+
+ Hardware protection action taken on critical events like
+ overtemperature or imminent voltage loss.
i2c_bus= [HW] Override the default board specific I2C bus speed
or register an additional I2C bus that is not
@@ -1818,6 +2160,28 @@
Format:
<bus_id>,<clkrate>
+ i2c_touchscreen_props= [HW,ACPI,X86]
+ Set device-properties for ACPI-enumerated I2C-attached
+ touchscreen, to e.g. fix coordinates of upside-down
+ mounted touchscreens. If you need this option please
+ submit a drivers/platform/x86/touchscreen_dmi.c patch
+ adding a DMI quirk for this.
+
+ Format:
+ <ACPI_HW_ID>:<prop_name>=<val>[:prop_name=val][:...]
+ Where <val> is one of:
+ Omit "=<val>" entirely Set a boolean device-property
+ Unsigned number Set a u32 device-property
+ Anything else Set a string device-property
+
+ Examples (split over multiple lines):
+ i2c_touchscreen_props=GDIX1001:touchscreen-inverted-x:
+ touchscreen-inverted-y
+
+ i2c_touchscreen_props=MSSL1680:touchscreen-size-x=1920:
+ touchscreen-size-y=1080:touchscreen-inverted-y:
+ firmware-name=gsl1680-vendor-model.fw:silead,home-button
+
i8042.debug [HW] Toggle i8042 debug mode
i8042.unmask_kbd_data
[HW] Enable printing of interrupt data from the KBD port
@@ -1865,18 +2229,33 @@
0 -- machine default
1 -- force brightness inversion
+ ia32_emulation= [X86-64]
+ Format: <bool>
+ When true, allows loading 32-bit programs and executing 32-bit
+ syscalls, essentially overriding IA32_EMULATION_DEFAULT_DISABLED at
+ boot time. When false, unconditionally disables IA32 emulation.
+
icn= [HW,ISDN]
Format: <io>[,<membase>[,<icn_id>[,<icn_id2>]]]
- idle= [X86]
+ idle= [X86,EARLY]
Format: idle=poll, idle=halt, idle=nomwait
- Poll forces a polling idle loop that can slightly
- improve the performance of waking up a idle CPU, but
- will use a lot of power and make the system run hot.
- Not recommended.
+
+ idle=poll: Don't do power saving in the idle loop
+ using HLT, but poll for rescheduling event. This will
+ make the CPUs eat a lot more power, but may be useful
+ to get slightly better performance in multiprocessor
+ benchmarks. It also makes some profiling using
+ performance counters more accurate. Please note that
+ on systems with MONITOR/MWAIT support (like Intel
+ EM64T CPUs) this option has no performance advantage
+ over the normal idle loop. It may also interact badly
+ with hyperthreading.
+
idle=halt: Halt is forced to be used for CPU idle.
In such case C2/C3 won't be used again.
+
idle=nomwait: Disable mwait for CPU C-states
idxd.sva= [HW]
@@ -1891,7 +2270,7 @@
for the device. By default it is set to false (0).
ieee754= [MIPS] Select IEEE Std 754 conformance mode
- Format: { strict | legacy | 2008 | relaxed }
+ Format: { strict | legacy | 2008 | relaxed | emulated }
Default: strict
Choose which programs will be accepted for execution
@@ -1911,6 +2290,8 @@
by the FPU
relaxed accept any binaries regardless of whether
supported by the FPU
+ emulated accept any binaries but enable FPU emulator
+ if binary mode is unsupported by the FPU.
The FPU emulator is always able to support both NaN
encodings, so if no FPU hardware is present or it has
@@ -1925,7 +2306,7 @@
mode generally follows that for the NaN encoding,
except where unsupported by hardware.
- ignore_loglevel [KNL]
+ ignore_loglevel [KNL,EARLY]
Ignore loglevel setting - this will print /all/
kernel messages to the console. Useful for debugging.
We also add it as printk module parameter, so users
@@ -2018,6 +2399,28 @@
different crypto accelerators. This option can be used
to achieve best performance for particular HW.
+ ima= [IMA] Enable or disable IMA
+ Format: { "off" | "on" }
+ Default: "on"
+ Note that disabling IMA is limited to kdump kernel.
+
+ indirect_target_selection= [X86,Intel] Mitigation control for Indirect
+ Target Selection(ITS) bug in Intel CPUs. Updated
+ microcode is also required for a fix in IBPB.
+
+ on: Enable mitigation (default).
+ off: Disable mitigation.
+ force: Force the ITS bug and deploy default
+ mitigation.
+ vmexit: Only deploy mitigation if CPU is affected by
+ guest/host isolation part of ITS.
+ stuff: Deploy RSB-fill mitigation when retpoline is
+ also deployed. Otherwise, deploy the default
+ mitigation.
+
+ For details see:
+ Documentation/admin-guide/hw-vuln/indirect-target-selection.rst
+
init= [KNL]
Format: <full_path>
Run specified binary instead of /sbin/init as init
@@ -2043,21 +2446,21 @@
unpacking being completed before device_ and
late_ initcalls.
- initrd= [BOOT] Specify the location of the initial ramdisk
+ initrd= [BOOT,EARLY] Specify the location of the initial ramdisk
- initrdmem= [KNL] Specify a physical address and size from which to
+ initrdmem= [KNL,EARLY] Specify a physical address and size from which to
load the initrd. If an initrd is compiled in or
specified in the bootparams, it takes priority over this
setting.
Format: ss[KMG],nn[KMG]
Default is 0, 0
- init_on_alloc= [MM] Fill newly allocated pages and heap objects with
+ init_on_alloc= [MM,EARLY] Fill newly allocated pages and heap objects with
zeroes.
Format: 0 | 1
Default set by CONFIG_INIT_ON_ALLOC_DEFAULT_ON.
- init_on_free= [MM] Fill freed pages and heap objects with zeroes.
+ init_on_free= [MM,EARLY] Fill freed pages and heap objects with zeroes.
Format: 0 | 1
Default set by CONFIG_INIT_ON_FREE_DEFAULT_ON.
@@ -2113,10 +2516,20 @@
0 disables intel_idle and fall back on acpi_idle.
1 to 9 specify maximum depth of C-state.
- intel_pstate= [X86]
+ intel_pstate= [X86,EARLY]
disable
Do not enable intel_pstate as the default
scaling driver for the supported processors
+ active
+ Use intel_pstate driver to bypass the scaling
+ governors layer of cpufreq and provides it own
+ algorithms for p-state selection. There are two
+ P-state selection algorithms provided by
+ intel_pstate in the active mode: powersave and
+ performance. The way they both operate depends
+ on whether or not the hardware managed P-states
+ (HWP) feature has been enabled in the processor
+ and possibly on the processor model.
passive
Use intel_pstate as a scaling driver, but configure it
to work with generic cpufreq governors (instead of
@@ -2146,35 +2559,93 @@
per_cpu_perf_limits
Allow per-logical-CPU P-State performance control limits using
cpufreq sysfs interface
+ no_cas
+ Do not enable capacity-aware scheduling (CAS) on
+ hybrid systems
- intremap= [X86-64, Intel-IOMMU]
+ intremap= [X86-64,Intel-IOMMU,EARLY]
on enable Interrupt Remapping (default)
off disable Interrupt Remapping
nosid disable Source ID checking
no_x2apic_optout
BIOS x2APIC opt-out request will be ignored
nopost disable Interrupt Posting
+ posted_msi
+ enable MSIs delivered as posted interrupts
iomem= Disable strict checking of access to MMIO memory
strict regions from userspace.
relaxed
- iommu= [X86]
+ iommu= [X86,EARLY]
+
off
+ Don't initialize and use any kind of IOMMU.
+
force
+ Force the use of the hardware IOMMU even when
+ it is not actually needed (e.g. because < 3 GB
+ memory).
+
noforce
+ Don't force hardware IOMMU usage when it is not
+ needed. (default).
+
biomerge
panic
nopanic
merge
nomerge
+
soft
- pt [X86]
- nopt [X86]
- nobypass [PPC/POWERNV]
+ Use software bounce buffering (SWIOTLB) (default for
+ Intel machines). This can be used to prevent the usage
+ of an available hardware IOMMU.
+
+ [X86]
+ pt
+ [X86]
+ nopt
+ [PPC/POWERNV]
+ nobypass
Disable IOMMU bypass, using IOMMU for PCI devices.
- iommu.forcedac= [ARM64, X86] Control IOVA allocation for PCI devices.
+ [X86]
+ AMD Gart HW IOMMU-specific options:
+
+ <size>
+ Set the size of the remapping area in bytes.
+
+ allowed
+ Overwrite iommu off workarounds for specific chipsets
+
+ fullflush
+ Flush IOMMU on each allocation (default).
+
+ nofullflush
+ Don't use IOMMU fullflush.
+
+ memaper[=<order>]
+ Allocate an own aperture over RAM with size
+ 32MB<<order. (default: order=1, i.e. 64MB)
+
+ merge
+ Do scatter-gather (SG) merging. Implies "force"
+ (experimental).
+
+ nomerge
+ Don't do scatter-gather (SG) merging.
+
+ noaperture
+ Ask the IOMMU not to touch the aperture for AGP.
+
+ noagp
+ Don't initialize the AGP driver and use full aperture.
+
+ panic
+ Always panic when IOMMU overflows.
+
+ iommu.forcedac= [ARM64,X86,EARLY] Control IOVA allocation for PCI devices.
Format: { "0" | "1" }
0 - Try to allocate a 32-bit DMA address first, before
falling back to the full range if needed.
@@ -2182,7 +2653,7 @@
forcing Dual Address Cycle for PCI cards supporting
greater than 32-bit addressing.
- iommu.strict= [ARM64, X86] Configure TLB invalidation behaviour
+ iommu.strict= [ARM64,X86,S390,EARLY] Configure TLB invalidation behaviour
Format: { "0" | "1" }
0 - Lazy mode.
Request that DMA unmap operations use deferred
@@ -2198,7 +2669,7 @@
legacy driver-specific options takes precedence.
iommu.passthrough=
- [ARM64, X86] Configure DMA to bypass the IOMMU by default.
+ [ARM64,X86,EARLY] Configure DMA to bypass the IOMMU by default.
Format: { "0" | "1" }
0 - Use IOMMU translation for DMA.
1 - Bypass the IOMMU for DMA.
@@ -2208,7 +2679,7 @@
See comment before marvel_specify_io7 in
arch/alpha/kernel/core_marvel.c.
- io_delay= [X86] I/O delay method
+ io_delay= [X86,EARLY] I/O delay method
0x80
Standard port 0x80 based delay
0xed
@@ -2221,37 +2692,61 @@
ip= [IP_PNP]
See Documentation/admin-guide/nfs/nfsroot.rst.
- ipcmni_extend [KNL] Extend the maximum number of unique System V
+ ipcmni_extend [KNL,EARLY] Extend the maximum number of unique System V
IPC identifiers from 32,768 to 16,777,216.
+ ipe.enforce= [IPE]
+ Format: <bool>
+ Determine whether IPE starts in permissive (0) or
+ enforce (1) mode. The default is enforce.
+
+ ipe.success_audit=
+ [IPE]
+ Format: <bool>
+ Start IPE with success auditing enabled, emitting
+ an audit event when a binary is allowed. The default
+ is 0.
+
irqaffinity= [SMP] Set the default irq affinity mask
The argument is a cpu list, as described above.
irqchip.gicv2_force_probe=
- [ARM, ARM64]
+ [ARM,ARM64,EARLY]
Format: <bool>
Force the kernel to look for the second 4kB page
of a GICv2 controller even if the memory range
exposed by the device tree is too small.
irqchip.gicv3_nolpi=
- [ARM, ARM64]
+ [ARM,ARM64,EARLY]
Force the kernel to ignore the availability of
LPIs (and by consequence ITSs). Intended for system
that use the kernel as a bootloader, and thus want
to let secondary kernels in charge of setting up
LPIs.
- irqchip.gicv3_pseudo_nmi= [ARM64]
+ irqchip.gicv3_pseudo_nmi= [ARM64,EARLY]
Enables support for pseudo-NMIs in the kernel. This
requires the kernel to be built with
CONFIG_ARM64_PSEUDO_NMI.
+ irqchip.riscv_imsic_noipi
+ [RISC-V,EARLY]
+ Force the kernel to not use IMSIC software injected MSIs
+ as IPIs. Intended for system where IMSIC is trap-n-emulated,
+ and thus want to reduce MMIO traps when triggering IPIs
+ to multiple harts.
+
irqfixup [HW]
When an interrupt is not handled search all handlers
for it. Intended to get systems with badly broken
firmware running.
+ irqhandler.duration_warn_us= [KNL]
+ Warn if an IRQ handler exceeds the specified duration
+ threshold in microseconds. Useful for identifying
+ long-running IRQs in the system.
+
irqpoll [HW]
When an interrupt is not handled search all handlers
for it. Also check all handlers each timer
@@ -2269,7 +2764,9 @@
specified in the flag list (default: domain):
nohz
- Disable the tick when a single task runs.
+ Disable the tick when a single task runs as well as
+ disabling other kernel noises like having RCU callbacks
+ offloaded. This is equivalent to the nohz_full parameter.
A residual 1Hz tick is offloaded to workqueues, which you
need to affine to housekeeping through the global
@@ -2387,15 +2884,15 @@
parameter KASAN will print report only for the first
invalid access.
- keep_bootcon [KNL]
+ keep_bootcon [KNL,EARLY]
Do not unregister boot console at start. This is only
useful for debugging when something happens in the window
between unregistering the boot console and initializing
the real console.
- keepinitrd [HW,ARM]
+ keepinitrd [HW,ARM] See retain_initrd.
- kernelcore= [KNL,X86,IA-64,PPC]
+ kernelcore= [KNL,X86,PPC,EARLY]
Format: nn[KMGTPE] | nn% | "mirror"
This parameter specifies the amount of memory usable by
the kernel for non-movable allocations. The requested
@@ -2420,7 +2917,7 @@
for Movable pages. "nn[KMGTPE]", "nn%", and "mirror"
are exclusive, so you cannot specify multiple forms.
- kgdbdbgp= [KGDB,HW] kgdb over EHCI usb debug port.
+ kgdbdbgp= [KGDB,HW,EARLY] kgdb over EHCI usb debug port.
Format: <Controller#>[,poll interval]
The controller # is the number of the ehci usb debug
port as it is probed via PCI. The poll interval is
@@ -2441,7 +2938,7 @@
kms, kbd format: kms,kbd
kms, kbd and serial format: kms,kbd,<ser_dev>[,baud]
- kgdboc_earlycon= [KGDB,HW]
+ kgdboc_earlycon= [KGDB,HW,EARLY]
If the boot console provides the ability to read
characters and can work in polling mode, you can use
this parameter to tell kgdb to use it as a backend
@@ -2456,14 +2953,39 @@
blank and the first boot console that implements
read() will be picked.
- kgdbwait [KGDB] Stop kernel execution and enter the
+ kgdbwait [KGDB,EARLY] Stop kernel execution and enter the
kernel debugger at the earliest opportunity.
+ kho= [KEXEC,EARLY]
+ Format: { "0" | "1" | "off" | "on" | "y" | "n" }
+ Enables or disables Kexec HandOver.
+ "0" | "off" | "n" - kexec handover is disabled
+ "1" | "on" | "y" - kexec handover is enabled
+
+ kho_scratch= [KEXEC,EARLY]
+ Format: ll[KMG],mm[KMG],nn[KMG] | nn%
+ Defines the size of the KHO scratch region. The KHO
+ scratch regions are physically contiguous memory
+ ranges that can only be used for non-kernel
+ allocations. That way, even when memory is heavily
+ fragmented with handed over memory, the kexeced
+ kernel will always have enough contiguous ranges to
+ bootstrap itself.
+
+ It is possible to specify the exact amount of
+ memory in the form of "ll[KMG],mm[KMG],nn[KMG]"
+ where the first parameter defines the size of a low
+ memory scratch area, the second parameter defines
+ the size of a global scratch area and the third
+ parameter defines the size of additional per-node
+ scratch areas. The form "nn%" defines scale factor
+ (in percents) of memory that was used during boot.
+
kmac= [MIPS] Korina ethernet MAC address.
Configure the RouterBoard 532 series on-chip
Ethernet adapter MAC address.
- kmemleak= [KNL] Boot-time kmemleak enable/disable
+ kmemleak= [KNL,EARLY] Boot-time kmemleak enable/disable
Valid arguments: on, off
Default: on
Built with CONFIG_DEBUG_KMEMLEAK_DEFAULT_OFF=y,
@@ -2482,8 +3004,8 @@
See also Documentation/trace/kprobetrace.rst "Kernel
Boot Parameter" section.
- kpti= [ARM64] Control page table isolation of user
- and kernel address spaces.
+ kpti= [ARM64,EARLY] Control page table isolation of
+ user and kernel address spaces.
Default: enabled on cores which need mitigation.
0: force disabled
1: force enabled
@@ -2522,6 +3044,23 @@
Default is Y (on).
+ kvm.enable_virt_at_load=[KVM,ARM64,LOONGARCH,MIPS,RISCV,X86]
+ If enabled, KVM will enable virtualization in hardware
+ when KVM is loaded, and disable virtualization when KVM
+ is unloaded (if KVM is built as a module).
+
+ If disabled, KVM will dynamically enable and disable
+ virtualization on-demand when creating and destroying
+ VMs, i.e. on the 0=>1 and 1=>0 transitions of the
+ number of VMs.
+
+ Enabling virtualization at module load avoids potential
+ latency for creation of the 0=>1 VM, as KVM serializes
+ virtualization enabling across all online CPUs. The
+ "cost" of enabling virtualization when KVM is loaded,
+ is that doing so may interfere with using out-of-tree
+ hypervisors that want to "own" virtualization hardware.
+
kvm.enable_vmware_backdoor=[KVM] Support VMware backdoor PV interface.
Default is false (don't support).
@@ -2551,50 +3090,95 @@
If the value is 0 (the default), KVM will pick a period based
on the ratio, such that a page is zapped after 1 hour on average.
- kvm-amd.nested= [KVM,AMD] Allow nested virtualization in KVM/SVM.
- Default is 1 (enabled)
-
- kvm-amd.npt= [KVM,AMD] Disable nested paging (virtualized MMU)
- for all guests.
- Default is 1 (enabled) if in 64-bit or 32-bit PAE mode.
+ kvm-amd.nested= [KVM,AMD] Control nested virtualization feature in
+ KVM/SVM. Default is 1 (enabled).
+
+ kvm-amd.npt= [KVM,AMD] Control KVM's use of Nested Page Tables,
+ a.k.a. Two-Dimensional Page Tables. Default is 1
+ (enabled). Disable by KVM if hardware lacks support
+ for NPT.
+
+ kvm-amd.ciphertext_hiding_asids=
+ [KVM,AMD] Ciphertext hiding prevents disallowed accesses
+ to SNP private memory from reading ciphertext. Instead,
+ reads will see constant default values (0xff).
+
+ If ciphertext hiding is enabled, the joint SEV-ES and
+ SEV-SNP ASID space is partitioned into separate SEV-ES
+ and SEV-SNP ASID ranges, with the SEV-SNP range being
+ [1..max_snp_asid] and the SEV-ES range being
+ (max_snp_asid..min_sev_asid), where min_sev_asid is
+ enumerated by CPUID.0x.8000_001F[EDX].
+
+ A non-zero value enables SEV-SNP ciphertext hiding and
+ adjusts the ASID ranges for SEV-ES and SEV-SNP guests.
+ KVM caps the number of SEV-SNP ASIDs at the maximum
+ possible value, e.g. specifying -1u will assign all
+ joint SEV-ES and SEV-SNP ASIDs to SEV-SNP. Note,
+ assigning all joint ASIDs to SEV-SNP, i.e. configuring
+ max_snp_asid == min_sev_asid-1, will effectively make
+ SEV-ES unusable.
kvm-arm.mode=
- [KVM,ARM] Select one of KVM/arm64's modes of operation.
+ [KVM,ARM,EARLY] Select one of KVM/arm64's modes of
+ operation.
none: Forcefully disable KVM.
nvhe: Standard nVHE-based mode, without support for
protected guests.
- protected: nVHE-based mode with support for guests whose
- state is kept private from the host.
+ protected: Mode with support for guests whose state is
+ kept private from the host, using VHE or
+ nVHE depending on HW support.
nested: VHE-based mode with support for nested
- virtualization. Requires at least ARMv8.3
- hardware.
+ virtualization. Requires at least ARMv8.4
+ hardware (with FEAT_NV2).
Defaults to VHE/nVHE based on hardware support. Setting
mode to "protected" will disable kexec and hibernation
- for the host. "nested" is experimental and should be
- used with extreme caution.
+ for the host. To force nVHE on VHE hardware, add
+ "arm64_sw.hvhe=0 id_aa64mmfr1.vh=0" to the
+ command-line.
+ "nested" is experimental and should be used with
+ extreme caution.
kvm-arm.vgic_v3_group0_trap=
- [KVM,ARM] Trap guest accesses to GICv3 group-0
+ [KVM,ARM,EARLY] Trap guest accesses to GICv3 group-0
system registers
kvm-arm.vgic_v3_group1_trap=
- [KVM,ARM] Trap guest accesses to GICv3 group-1
+ [KVM,ARM,EARLY] Trap guest accesses to GICv3 group-1
system registers
kvm-arm.vgic_v3_common_trap=
- [KVM,ARM] Trap guest accesses to GICv3 common
+ [KVM,ARM,EARLY] Trap guest accesses to GICv3 common
system registers
kvm-arm.vgic_v4_enable=
- [KVM,ARM] Allow use of GICv4 for direct injection of
- LPIs.
+ [KVM,ARM,EARLY] Allow use of GICv4 for direct
+ injection of LPIs.
+
+ kvm-arm.wfe_trap_policy=
+ [KVM,ARM] Control when to set WFE instruction trap for
+ KVM VMs. Traps are allowed but not guaranteed by the
+ CPU architecture.
+
+ trap: set WFE instruction trap
+
+ notrap: clear WFE instruction trap
- kvm_cma_resv_ratio=n [PPC]
+ kvm-arm.wfi_trap_policy=
+ [KVM,ARM] Control when to set WFI instruction trap for
+ KVM VMs. Traps are allowed but not guaranteed by the
+ CPU architecture.
+
+ trap: set WFI instruction trap
+
+ notrap: clear WFI instruction trap
+
+ kvm_cma_resv_ratio=n [PPC,EARLY]
Reserves given percentage from system memory area for
contiguous memory allocation for KVM hash pagetable
allocation.
@@ -2602,30 +3186,33 @@
Format: <integer>
Default: 5
- kvm-intel.ept= [KVM,Intel] Disable extended page tables
- (virtualized MMU) support on capable Intel chips.
- Default is 1 (enabled)
+ kvm-intel.ept= [KVM,Intel] Control KVM's use of Extended Page Tables,
+ a.k.a. Two-Dimensional Page Tables. Default is 1
+ (enabled). Disable by KVM if hardware lacks support
+ for EPT.
kvm-intel.emulate_invalid_guest_state=
- [KVM,Intel] Disable emulation of invalid guest state.
- Ignored if kvm-intel.enable_unrestricted_guest=1, as
- guest state is never invalid for unrestricted guests.
- This param doesn't apply to nested guests (L2), as KVM
- never emulates invalid L2 guest state.
- Default is 1 (enabled)
+ [KVM,Intel] Control whether to emulate invalid guest
+ state. Ignored if kvm-intel.enable_unrestricted_guest=1,
+ as guest state is never invalid for unrestricted
+ guests. This param doesn't apply to nested guests (L2),
+ as KVM never emulates invalid L2 guest state.
+ Default is 1 (enabled).
kvm-intel.flexpriority=
- [KVM,Intel] Disable FlexPriority feature (TPR shadow).
- Default is 1 (enabled)
+ [KVM,Intel] Control KVM's use of FlexPriority feature
+ (TPR shadow). Default is 1 (enabled). Disable by KVM if
+ hardware lacks support for it.
kvm-intel.nested=
- [KVM,Intel] Enable VMX nesting (nVMX).
- Default is 0 (disabled)
+ [KVM,Intel] Control nested virtualization feature in
+ KVM/VMX. Default is 1 (enabled).
kvm-intel.unrestricted_guest=
- [KVM,Intel] Disable unrestricted guest feature
- (virtualized real and unpaged mode) on capable
- Intel chips. Default is 1 (enabled)
+ [KVM,Intel] Control KVM's use of unrestricted guest
+ feature (virtualized real and unpaged mode). Default
+ is 1 (enabled). Disable by KVM if EPT is disabled or
+ hardware lacks support for it.
kvm-intel.vmentry_l1d_flush=[KVM,Intel] Mitigation for L1 Terminal Fault
CVE-2018-3620.
@@ -2639,11 +3226,12 @@
Default is cond (do L1 cache flush in specific instances)
- kvm-intel.vpid= [KVM,Intel] Disable Virtual Processor Identification
- feature (tagged TLBs) on capable Intel chips.
- Default is 1 (enabled)
+ kvm-intel.vpid= [KVM,Intel] Control KVM's use of Virtual Processor
+ Identification feature (tagged TLBs). Default is 1
+ (enabled). Disable by KVM if hardware lacks support
+ for it.
- l1d_flush= [X86,INTEL]
+ l1d_flush= [X86,INTEL,EARLY]
Control mitigation for L1D based snooping vulnerability.
Certain CPUs are vulnerable to an exploit against CPU
@@ -2660,7 +3248,7 @@
on - enable the interface for the mitigation
- l1tf= [X86] Control mitigation of the L1TF vulnerability on
+ l1tf= [X86,EARLY] Control mitigation of the L1TF vulnerability on
affected CPUs
The kernel PTE inversion protection is unconditionally
@@ -2729,7 +3317,7 @@
l3cr= [PPC]
- lapic [X86-32,APIC] Enable the local APIC even if BIOS
+ lapic [X86-32,APIC,EARLY] Enable the local APIC even if BIOS
disabled it.
lapic= [X86,APIC] Do not use TSC deadline
@@ -2737,7 +3325,7 @@
back to the programmable timer unit in the LAPIC.
Format: notscdeadline
- lapic_timer_c2_ok [X86,APIC] trust the local apic timer
+ lapic_timer_c2_ok [X86,APIC,EARLY] trust the local apic timer
in C2 power state.
libata.dma= [LIBATA] DMA control
@@ -2832,6 +3420,8 @@
* max_sec_lba48: Set or clear transfer size limit to
65535 sectors.
+ * external: Mark port as external (hotplug-capable).
+
* [no]lpm: Enable or disable link power management.
* [no]setxfer: Indicate if transfer speed mode setting
@@ -2861,7 +3451,7 @@
lockd.nlm_udpport=M [NFS] Assign UDP port.
Format: <integer>
- lockdown= [SECURITY]
+ lockdown= [SECURITY,EARLY]
{ integrity | confidentiality }
Enable the kernel lockdown feature. If set to
integrity, kernel features that allow userland to
@@ -2870,6 +3460,38 @@
to extract confidential information from the kernel
are also disabled.
+ locktorture.acq_writer_lim= [KNL]
+ Set the time limit in jiffies for a lock
+ acquisition. Acquisitions exceeding this limit
+ will result in a splat once they do complete.
+
+ locktorture.bind_readers= [KNL]
+ Specify the list of CPUs to which the readers are
+ to be bound.
+
+ locktorture.bind_writers= [KNL]
+ Specify the list of CPUs to which the writers are
+ to be bound.
+
+ locktorture.call_rcu_chains= [KNL]
+ Specify the number of self-propagating call_rcu()
+ chains to set up. These are used to ensure that
+ there is a high probability of an RCU grace period
+ in progress at any given time. Defaults to 0,
+ which disables these call_rcu() chains.
+
+ locktorture.long_hold= [KNL]
+ Specify the duration in milliseconds for the
+ occasional long-duration lock hold time. Defaults
+ to 100 milliseconds. Select 0 to disable.
+
+ locktorture.nested_locks= [KNL]
+ Specify the maximum lock nesting depth that
+ locktorture is to exercise, up to a limit of 8
+ (MAX_NESTED_LOCKS). Specify zero to disable.
+ Note that this parameter is ineffective on types
+ of locks that do not support nested acquisition.
+
locktorture.nreaders_stress= [KNL]
Set the number of locking read-acquisition kthreads.
Defaults to being automatically set based on the
@@ -2885,6 +3507,25 @@
Set time (s) between CPU-hotplug operations, or
zero to disable CPU-hotplug testing.
+ locktorture.rt_boost= [KNL]
+ Do periodic testing of real-time lock priority
+ boosting. Select 0 to disable, 1 to boost
+ only rt_mutex, and 2 to boost unconditionally.
+ Defaults to 2, which might seem to be an
+ odd choice, but which should be harmless for
+ non-real-time spinlocks, due to their disabling
+ of preemption. Note that non-realtime mutexes
+ disable boosting.
+
+ locktorture.rt_boost_factor= [KNL]
+ Number that determines how often and for how
+ long priority boosting is exercised. This is
+ scaled down by the number of writers, so that the
+ number of boosts per unit time remains roughly
+ constant as the number of writers increases.
+ On the other hand, the duration of each boost
+ increases with the number of writers.
+
locktorture.shuffle_interval= [KNL]
Set task-shuffle interval (jiffies). Shuffling
tasks allows some CPUs to go into dyntick-idle
@@ -2910,10 +3551,15 @@
locktorture.verbose= [KNL]
Enable additional printk() statements.
+ locktorture.writer_fifo= [KNL]
+ Run the write-side locktorture kthreads at
+ sched_set_fifo() real-time priority.
+
logibm.irq= [HW,MOUSE] Logitech Bus Mouse Driver
Format: <irq>
- loglevel= All Kernel Messages with a loglevel smaller than the
+ loglevel= [KNL,EARLY]
+ All Kernel Messages with a loglevel smaller than the
console loglevel will be printed to the console. It can
also be changed with klogd or other programs. The
loglevels are defined as follows:
@@ -2927,13 +3573,15 @@
6 (KERN_INFO) informational
7 (KERN_DEBUG) debug-level messages
- log_buf_len=n[KMG] Sets the size of the printk ring buffer,
- in bytes. n must be a power of two and greater
- than the minimal size. The minimal size is defined
- by LOG_BUF_SHIFT kernel config parameter. There is
- also CONFIG_LOG_CPU_MAX_BUF_SHIFT config parameter
- that allows to increase the default size depending on
- the number of CPUs. See init/Kconfig for more details.
+ log_buf_len=n[KMG] [KNL,EARLY]
+ Sets the size of the printk ring buffer, in bytes.
+ n must be a power of two and greater than the
+ minimal size. The minimal size is defined by
+ LOG_BUF_SHIFT kernel config parameter. There
+ is also CONFIG_LOG_CPU_MAX_BUF_SHIFT config
+ parameter that allows to increase the default size
+ depending on the number of CPUs. See init/Kconfig
+ for more details.
logo.nologo [FB] Disables display of the built-in Linux logo.
This may be used to provide more screen space for
@@ -2971,27 +3619,17 @@
unlikely, in the extreme case this might damage your
hardware.
- ltpc= [NET]
- Format: <io>,<irq>,<dma>
-
lsm.debug [SECURITY] Enable LSM initialization debugging output.
lsm=lsm1,...,lsmN
[SECURITY] Choose order of LSM initialization. This
overrides CONFIG_LSM, and the "security=" parameter.
- machvec= [IA-64] Force the use of a particular machine-vector
- (machvec) in a generic kernel.
- Example: machvec=hpzx1
-
machtype= [Loongson] Share the same kernel image file between
different yeeloong laptops.
Example: machtype=lemote-yeeloong-2f-7inch
- max_addr=nn[KMG] [KNL,BOOT,IA-64] All physical memory greater
- than or equal to this physical address is ignored.
-
- maxcpus= [SMP] Maximum number of processors that an SMP kernel
+ maxcpus= [SMP,EARLY] Maximum number of processors that an SMP kernel
will bring up during bootup. maxcpus=n : n >= 0 limits
the kernel to bring up 'n' processors. Surely after
bootup you can bring up the other plugged cpu by executing
@@ -3007,9 +3645,77 @@
devices can be requested on-demand with the
/dev/loop-control interface.
- mce [X86-32] Machine Check Exception
+ mce= [X86-{32,64}]
+
+ Please see Documentation/arch/x86/x86_64/machinecheck.rst for sysfs runtime tunables.
+
+ off
+ disable machine check
+
+ no_cmci
+ disable CMCI(Corrected Machine Check Interrupt) that
+ Intel processor supports. Usually this disablement is
+ not recommended, but it might be handy if your
+ hardware is misbehaving.
+
+ Note that you'll get more problems without CMCI than
+ with due to the shared banks, i.e. you might get
+ duplicated error logs.
+
+ dont_log_ce
+ don't make logs for corrected errors. All events
+ reported as corrected are silently cleared by OS. This
+ option will be useful if you have no interest in any
+ of corrected errors.
+
+ ignore_ce
+ disable features for corrected errors, e.g.
+ polling timer and CMCI. All events reported as
+ corrected are not cleared by OS and remained in its
+ error banks.
+
+ Usually this disablement is not recommended, however
+ if there is an agent checking/clearing corrected
+ errors (e.g. BIOS or hardware monitoring
+ applications), conflicting with OS's error handling,
+ and you cannot deactivate the agent, then this option
+ will be a help.
+
+ no_lmce
+ do not opt-in to Local MCE delivery. Use legacy method
+ to broadcast MCEs.
+
+ bootlog
+ enable logging of machine checks left over from
+ booting. Disabled by default on AMD Fam10h and older
+ because some BIOS leave bogus ones.
+
+ If your BIOS doesn't do that it's a good idea to
+ enable though to make sure you log even machine check
+ events that result in a reboot. On Intel systems it is
+ enabled by default.
+
+ nobootlog
+ disable boot machine check logging.
+
+ monarchtimeout (number)
+ sets the time in us to wait for other CPUs on machine
+ checks. 0 to disable.
+
+ bios_cmci_threshold
+ don't overwrite the bios-set CMCI threshold. This boot
+ option prevents Linux from overwriting the CMCI
+ threshold set by the bios. Without this option, Linux
+ always sets the CMCI threshold to 1. Enabling this may
+ make memory predictive failure analysis less effective
+ if the bios sets thresholds for memory errors since we
+ will not see details for all errors.
+
+ recovery
+ force-enable recoverable machine check code paths
+
+ Everything else is in sysfs now.
- mce=option [X86-64] See Documentation/arch/x86/x86_64/boot-options.rst
md= [HW] RAID subsystems devices and level
See Documentation/admin-guide/md.rst.
@@ -3018,7 +3724,7 @@
Format: <first>,<last>
Specifies range of consoles to be captured by the MDA.
- mds= [X86,INTEL]
+ mds= [X86,INTEL,EARLY]
Control mitigation for the Micro-architectural Data
Sampling (MDS) vulnerability.
@@ -3050,11 +3756,12 @@
For details see: Documentation/admin-guide/hw-vuln/mds.rst
- mem=nn[KMG] [HEXAGON] Set the memory size.
+ mem=nn[KMG] [HEXAGON,EARLY] Set the memory size.
Must be specified, otherwise memory size will be 0.
- mem=nn[KMG] [KNL,BOOT] Force usage of a specific amount of memory
- Amount of memory to be used in cases as follows:
+ mem=nn[KMG] [KNL,BOOT,EARLY] Force usage of a specific amount
+ of memory Amount of memory to be used in cases
+ as follows:
1 for test;
2 when the kernel is not able to see the whole system memory;
@@ -3078,8 +3785,8 @@
if system memory of hypervisor is not sufficient.
mem=nn[KMG]@ss[KMG]
- [ARM,MIPS] - override the memory layout reported by
- firmware.
+ [ARM,MIPS,EARLY] - override the memory layout
+ reported by firmware.
Define a memory region of size nn[KMG] starting at
ss[KMG].
Multiple different regions can be specified with
@@ -3088,28 +3795,28 @@
mem=nopentium [BUGS=X86-32] Disable usage of 4MB pages for kernel
memory.
- memblock=debug [KNL] Enable memblock debug messages.
+ memblock=debug [KNL,EARLY] Enable memblock debug messages.
memchunk=nn[KMG]
[KNL,SH] Allow user to override the default size for
per-device physically contiguous DMA buffers.
- memhp_default_state=online/offline
+ memhp_default_state=online/offline/online_kernel/online_movable
[KNL] Set the initial state for the memory hotplug
onlining policy. If not specified, the default value is
set according to the
- CONFIG_MEMORY_HOTPLUG_DEFAULT_ONLINE kernel config
- option.
+ CONFIG_MHP_DEFAULT_ONLINE_TYPE kernel config
+ options.
See Documentation/admin-guide/mm/memory-hotplug.rst.
- memmap=exactmap [KNL,X86] Enable setting of an exact
+ memmap=exactmap [KNL,X86,EARLY] Enable setting of an exact
E820 memory map, as specified by the user.
Such memmap=exactmap lines can be constructed based on
BIOS output or other requirements. See the memmap=nn@ss
option description.
memmap=nn[KMG]@ss[KMG]
- [KNL, X86, MIPS, XTENSA] Force usage of a specific region of memory.
+ [KNL, X86,MIPS,XTENSA,EARLY] Force usage of a specific region of memory.
Region of memory to be used is from ss to ss+nn.
If @ss[KMG] is omitted, it is equivalent to mem=nn[KMG],
which limits max address to nn[KMG].
@@ -3119,11 +3826,11 @@
memmap=100M@2G,100M#3G,1G!1024G
memmap=nn[KMG]#ss[KMG]
- [KNL,ACPI] Mark specific memory as ACPI data.
+ [KNL,ACPI,EARLY] Mark specific memory as ACPI data.
Region of memory to be marked is from ss to ss+nn.
memmap=nn[KMG]$ss[KMG]
- [KNL,ACPI] Mark specific memory as reserved.
+ [KNL,ACPI,EARLY] Mark specific memory as reserved.
Region of memory to be reserved is from ss to ss+nn.
Example: Exclude memory from 0x18690000-0x1869ffff
memmap=64K$0x18690000
@@ -3133,14 +3840,14 @@
like Grub2, otherwise '$' and the following number
will be eaten.
- memmap=nn[KMG]!ss[KMG]
+ memmap=nn[KMG]!ss[KMG,EARLY]
[KNL,X86] Mark specific memory as protected.
Region of memory to be used, from ss to ss+nn.
The memory region may be marked as e820 type 12 (0xc)
and is NVDIMM or ADR memory.
memmap=<size>%<offset>-<oldtype>+<newtype>
- [KNL,ACPI] Convert memory within the specified region
+ [KNL,ACPI,EARLY] Convert memory within the specified region
from <oldtype> to <newtype>. If "-<oldtype>" is left
out, the whole region will be marked as <newtype>,
even if previously unavailable. If "+<newtype>" is left
@@ -3148,25 +3855,25 @@
specified as e820 types, e.g., 1 = RAM, 2 = reserved,
3 = ACPI, 12 = PRAM.
- memory_corruption_check=0/1 [X86]
+ memory_corruption_check=0/1 [X86,EARLY]
Some BIOSes seem to corrupt the first 64k of
memory when doing things like suspend/resume.
Setting this option will scan the memory
looking for corruption. Enabling this will
both detect corruption and prevent the kernel
from using the memory being corrupted.
- However, its intended as a diagnostic tool; if
+ However, it's intended as a diagnostic tool; if
repeatable BIOS-originated corruption always
affects the same memory, you can use memmap=
to prevent the kernel from using that memory.
- memory_corruption_check_size=size [X86]
+ memory_corruption_check_size=size [X86,EARLY]
By default it checks for corruption in the low
64k, making this memory unavailable for normal
use. Use this parameter to scan for
corruption in more or less memory.
- memory_corruption_check_period=seconds [X86]
+ memory_corruption_check_period=seconds [X86,EARLY]
By default it checks for corruption every 60
seconds. Use this parameter to check at some
other rate. 0 disables periodic checking.
@@ -3190,7 +3897,7 @@
Note that even when enabled, there are a few cases where
the feature is not effective.
- memtest= [KNL,X86,ARM,M68K,PPC,RISCV] Enable memtest
+ memtest= [KNL,X86,ARM,M68K,PPC,RISCV,EARLY] Enable memtest
Format: <integer>
default : 0 <disable>
Specifies the number of memtest passes to be
@@ -3202,9 +3909,7 @@
mem_encrypt= [X86-64] AMD Secure Memory Encryption (SME) control
Valid arguments: on, off
- Default (depends on kernel configuration option):
- on (CONFIG_AMD_MEM_ENCRYPT_ACTIVE_BY_DEFAULT=y)
- off (CONFIG_AMD_MEM_ENCRYPT_ACTIVE_BY_DEFAULT=n)
+ Default: off
mem_encrypt=on: Activate SME
mem_encrypt=off: Do not activate SME
@@ -3217,10 +3922,6 @@
deep - Suspend-To-RAM or equivalent (if supported)
See Documentation/admin-guide/pm/sleep-states.rst.
- mfgpt_irq= [IA-32] Specify the IRQ to use for the
- Multi-Function General Purpose Timers on AMD Geode
- platforms.
-
mfgptfix [X86-32] Fix MFGPT timers on AMD Geode platforms when
the BIOS has incorrectly applied a workaround. TinyBIOS
version 0.98 is known to be affected, 0.99 fixes the
@@ -3228,8 +3929,18 @@
mga= [HW,DRM]
- min_addr=nn[KMG] [KNL,BOOT,IA-64] All physical memory below this
- physical address is ignored.
+ microcode= [X86] Control the behavior of the microcode loader.
+ Available options, comma separated:
+
+ base_rev=X - with <X> with format: <u32>
+ Set the base microcode revision of each thread when in
+ debug mode.
+
+ dis_ucode_ldr: disable the microcode loader
+
+ force_minrev:
+ Enable or disable the microcode minimal revision
+ enforcement for the runtime microcode loader.
mini2440= [ARM,HW,KNL]
Format:[0..2][b][c][t]
@@ -3253,33 +3964,42 @@
https://repo.or.cz/w/linux-2.6/mini2440.git
mitigations=
- [X86,PPC,S390,ARM64] Control optional mitigations for
+ [X86,PPC,S390,ARM64,EARLY] Control optional mitigations for
CPU vulnerabilities. This is a set of curated,
arch-independent options, each of which is an
aggregation of existing arch-specific options.
+ Note, "mitigations" is supported if and only if the
+ kernel was built with CPU_MITIGATIONS=y.
+
off
Disable all optional CPU mitigations. This
improves system performance, but it may also
expose users to several CPU vulnerabilities.
- Equivalent to: nopti [X86,PPC]
- if nokaslr then kpti=0 [ARM64]
- nospectre_v1 [X86,PPC]
- nobp=0 [S390]
- nospectre_v2 [X86,PPC,S390,ARM64]
- spectre_v2_user=off [X86]
- spec_store_bypass_disable=off [X86,PPC]
- ssbd=force-off [ARM64]
- nospectre_bhb [ARM64]
+ Equivalent to: if nokaslr then kpti=0 [ARM64]
+ gather_data_sampling=off [X86]
+ indirect_target_selection=off [X86]
+ kvm.nx_huge_pages=off [X86]
l1tf=off [X86]
mds=off [X86]
- tsx_async_abort=off [X86]
- kvm.nx_huge_pages=off [X86]
- srbds=off [X86,INTEL]
+ mmio_stale_data=off [X86]
no_entry_flush [PPC]
no_uaccess_flush [PPC]
- mmio_stale_data=off [X86]
+ nobp=0 [S390]
+ nopti [X86,PPC]
+ nospectre_bhb [ARM64]
+ nospectre_v1 [X86,PPC]
+ nospectre_v2 [X86,PPC,S390,ARM64]
+ reg_file_data_sampling=off [X86]
retbleed=off [X86]
+ spec_rstack_overflow=off [X86]
+ spec_store_bypass_disable=off [X86,PPC]
+ spectre_bhi=off [X86]
+ spectre_v2_user=off [X86]
+ srbds=off [X86,INTEL]
+ ssbd=force-off [ARM64]
+ tsx_async_abort=off [X86]
+ vmscape=off [X86]
Exceptions:
This does not have any effect on
@@ -3304,8 +4024,12 @@
mmio_stale_data=full,nosmt [X86]
retbleed=auto,nosmt [X86]
+ [X86] After one of the above options, additionally
+ supports attack-vector based controls as documented in
+ Documentation/admin-guide/hw-vuln/attack_vector_controls.rst
+
mminit_loglevel=
- [KNL] When CONFIG_DEBUG_MEMORY_INIT is set, this
+ [KNL,EARLY] When CONFIG_DEBUG_MEMORY_INIT is set, this
parameter allows control of the logging verbosity for
the additional memory initialisation checks. A value
of 0 disables mminit logging and a level of 4 will
@@ -3313,7 +4037,7 @@
so loglevel=8 may also need to be specified.
mmio_stale_data=
- [X86,INTEL] Control mitigation for the Processor
+ [X86,INTEL,EARLY] Control mitigation for the Processor
MMIO Stale Data vulnerabilities.
Processor MMIO Stale Data is a class of
@@ -3388,7 +4112,7 @@
mousedev.yres= [MOUSE] Vertical screen resolution, used for devices
reporting absolute coordinates, such as tablets
- movablecore= [KNL,X86,IA-64,PPC]
+ movablecore= [KNL,X86,PPC,EARLY]
Format: nn[KMGTPE] | nn%
This parameter is the complement to kernelcore=, it
specifies the amount of memory used for migratable
@@ -3399,7 +4123,7 @@
that the amount of memory usable for all allocations
is not too small.
- movable_node [KNL] Boot-time switch to make hotplugable memory
+ movable_node [KNL,EARLY] Boot-time switch to make hotplugable memory
NUMA nodes to be movable. This means that the memory
of such nodes will be usable only for movable
allocations which rules out almost all kernel
@@ -3414,26 +4138,25 @@
mtdparts= [MTD]
See drivers/mtd/parsers/cmdlinepart.c
- mtdset= [ARM]
- ARM/S3C2412 JIVE boot control
-
- See arch/arm/mach-s3c/mach-jive.c
-
mtouchusb.raw_coordinates=
[HW] Make the MicroTouch USB driver use raw coordinates
('y', default) or cooked coordinates ('n')
- mtrr_chunk_size=nn[KMG] [X86]
+ mtrr=debug [X86,EARLY]
+ Enable printing debug information related to MTRR
+ registers at boot time.
+
+ mtrr_chunk_size=nn[KMG,X86,EARLY]
used for mtrr cleanup. It is largest continuous chunk
that could hold holes aka. UC entries.
- mtrr_gran_size=nn[KMG] [X86]
+ mtrr_gran_size=nn[KMG,X86,EARLY]
Used for mtrr cleanup. It is granularity of mtrr block.
Default is 1.
Large value could prevent small alignment from
using up MTRRs.
- mtrr_spare_reg_nr=n [X86]
+ mtrr_spare_reg_nr=n [X86,EARLY]
Format: <integer>
Range: 0,7 : spare reg number
Default : 1
@@ -3481,6 +4204,13 @@
[NFS] set the TCP port on which the NFSv4 callback
channel should listen.
+ nfs.delay_retrans=
+ [NFS] specifies the number of times the NFSv4 client
+ retries the request before returning an EAGAIN error,
+ after a reply of NFS4ERR_DELAY from the server.
+ Only applies if the softerr mount option is enabled,
+ and the specified value is >= 0.
+
nfs.enable_ino64=
[NFS] enable 64-bit inode numbers.
If zero, the NFS client will fake up a 32-bit inode
@@ -3593,10 +4323,12 @@
Format: [state][,regs][,debounce][,die]
nmi_watchdog= [KNL,BUGS=X86] Debugging features for SMP kernels
- Format: [panic,][nopanic,][num]
+ Format: [panic,][nopanic,][rNNN,][num]
Valid num: 0 or 1
0 - turn hardlockup detector in nmi_watchdog off
1 - turn hardlockup detector in nmi_watchdog on
+ rNNN - configure the watchdog with raw perf event 0xNNN
+
When panic is specified, panic when an NMI watchdog
timeout occurs (or 'nopanic' to not panic on an NMI
watchdog, if CONFIG_BOOTPARAM_HARDLOCKUP_PANIC is set)
@@ -3612,27 +4344,22 @@
emulation library even if a 387 maths coprocessor
is present.
- no4lvl [RISCV] Disable 4-level and 5-level paging modes. Forces
- kernel to use 3-level paging instead.
+ no4lvl [RISCV,EARLY] Disable 4-level and 5-level paging modes.
+ Forces kernel to use 3-level paging instead.
- no5lvl [X86-64,RISCV] Disable 5-level paging mode. Forces
+ no5lvl [X86-64,RISCV,EARLY] Disable 5-level paging mode. Forces
kernel to use 4-level paging instead.
- noaliencache [MM, NUMA, SLAB] Disables the allocation of alien
- caches in the slab allocator. Saves per-node memory,
- but will impact performance.
-
noalign [KNL,ARM]
- noaltinstr [S390] Disables alternative instructions patching
- (CPU alternatives feature).
-
- noapic [SMP,APIC] Tells the kernel to not make use of any
+ noapic [SMP,APIC,EARLY] Tells the kernel to not make use of any
IOAPICs that may be present in the system.
+ noapictimer [APIC,X86] Don't set up the APIC timer
+
noautogroup Disable scheduler automatic task group creation.
- nocache [ARM]
+ nocache [ARM,EARLY]
no_console_suspend
[HW] Never suspend the console
@@ -3650,15 +4377,13 @@
turn on/off it dynamically.
no_debug_objects
- [KNL] Disable object debugging
+ [KNL,EARLY] Disable object debugging
nodsp [SH] Disable hardware DSP at boot time.
- noefi Disable EFI runtime services support.
+ noefi [EFI,EARLY] Disable EFI runtime services support.
- no_entry_flush [PPC] Don't flush the L1-D cache when entering the kernel.
-
- noexec [IA-64]
+ no_entry_flush [PPC,EARLY] Don't flush the L1-D cache when entering the kernel.
noexec32 [X86-64]
This affects only 32-bit executables.
@@ -3679,31 +4404,16 @@
register save and restore. The kernel will only save
legacy floating-point registers on task switch.
- nohalt [IA-64] Tells the kernel not to use the power saving
- function PAL_HALT_LIGHT when idle. This increases
- power-consumption. On the positive side, it reduces
- interrupt wake-up latency, which may improve performance
- in certain environments such as networked servers or
- real-time systems.
+ nogbpages [X86] Do not use GB pages for kernel direct mappings.
no_hash_pointers
- Force pointers printed to the console or buffers to be
- unhashed. By default, when a pointer is printed via %p
- format string, that pointer is "hashed", i.e. obscured
- by hashing the pointer value. This is a security feature
- that hides actual kernel addresses from unprivileged
- users, but it also makes debugging the kernel more
- difficult since unequal pointers can no longer be
- compared. However, if this command-line option is
- specified, then all normal pointers will have their true
- value printed. This option should only be specified when
- debugging the kernel. Please do not use on production
- kernels.
+ [KNL,EARLY]
+ Alias for "hash_pointers=never".
nohibernate [HIBERNATION] Disable hibernation and resume.
- nohlt [ARM,ARM64,MICROBLAZE,SH] Forces the kernel to busy wait
- in do_idle() and not use the arch_cpu_idle()
+ nohlt [ARM,ARM64,MICROBLAZE,MIPS,PPC,RISCV,SH] Forces the kernel to
+ busy wait in do_idle() and not use the arch_cpu_idle()
implementation; requires CONFIG_GENERIC_IDLE_POLL_SETUP
to be effective. This is useful on platforms where the
sleep(SH) or wfi(ARM,ARM64) instructions do not work
@@ -3711,9 +4421,11 @@
the impact of the sleep instructions. This is also
useful when using JTAG debugger.
- nohugeiomap [KNL,X86,PPC,ARM64] Disable kernel huge I/O mappings.
+ nohpet [X86] Don't use the HPET timer.
+
+ nohugeiomap [KNL,X86,PPC,ARM64,EARLY] Disable kernel huge I/O mappings.
- nohugevmalloc [KNL,X86,PPC,ARM64] Disable kernel huge vmalloc mappings.
+ nohugevmalloc [KNL,X86,PPC,ARM64,EARLY] Disable kernel huge vmalloc mappings.
nohz= [KNL] Boottime enable/disable dynamic ticks
Valid arguments: on, off
@@ -3735,13 +4447,11 @@
noinitrd [RAM] Tells the kernel not to load any configured
initial RAM disk.
- nointremap [X86-64, Intel-IOMMU] Do not enable interrupt
+ nointremap [X86-64,Intel-IOMMU,EARLY] Do not enable interrupt
remapping.
[Deprecated - use intremap=off]
- nointroute [IA-64]
-
- noinvpcid [X86] Disable the INVPCID cpu feature.
+ noinvpcid [X86,EARLY] Disable the INVPCID cpu feature.
noiotrap [SH] Disables trapped I/O port accesses.
@@ -3750,23 +4460,19 @@
noisapnp [ISAPNP] Disables ISA PnP code.
- nojitter [IA-64] Disables jitter checking for ITC timers.
-
- nokaslr [KNL]
+ nokaslr [KNL,EARLY]
When CONFIG_RANDOMIZE_BASE is set, this disables
kernel and module base offset ASLR (Address Space
Layout Randomization).
- no-kvmapf [X86,KVM] Disable paravirtualized asynchronous page
+ no-kvmapf [X86,KVM,EARLY] Disable paravirtualized asynchronous page
fault handling.
- no-kvmclock [X86,KVM] Disable paravirtualized KVM clock driver
+ no-kvmclock [X86,KVM,EARLY] Disable paravirtualized KVM clock driver
- nolapic [X86-32,APIC] Do not enable or use the local APIC.
+ nolapic [X86-32,APIC,EARLY] Do not enable or use the local APIC.
- nolapic_timer [X86-32,APIC] Do not use the local APIC timer.
-
- nomca [IA-64] Disable machine check abort handling
+ nolapic_timer [X86-32,APIC,EARLY] Do not use the local APIC timer.
nomce [X86-32] Disable Machine Check Exception
@@ -3789,23 +4495,23 @@
shutdown the other cpus. Instead use the REBOOT_VECTOR
irq.
- nopat [X86] Disable PAT (page attribute table extension of
+ nopat [X86,EARLY] Disable PAT (page attribute table extension of
pagetables) support.
- nopcid [X86-64] Disable the PCID cpu feature.
+ nopcid [X86-64,EARLY] Disable the PCID cpu feature.
nopku [X86] Disable Memory Protection Keys CPU feature found
in some Intel CPUs.
- nopti [X86-64]
+ nopti [X86-64,EARLY]
Equivalent to pti=off
- nopv= [X86,XEN,KVM,HYPER_V,VMWARE]
+ nopv= [X86,XEN,KVM,HYPER_V,VMWARE,EARLY]
Disables the PV optimizations forcing the guest to run
as generic guest with no PV drivers. Currently support
XEN HVM, KVM, HYPER_V and VMWARE guest.
- nopvspin [X86,XEN,KVM]
+ nopvspin [X86,XEN,KVM,EARLY]
Disables the qspinlock slow path using PV optimizations
which allow the hypervisor to 'idle' the guest on lock
contention.
@@ -3819,61 +4525,62 @@
noresume [SWSUSP] Disables resume and restores original swap
space.
- nosbagart [IA-64]
-
no-scroll [VGA] Disables scrollback.
This is required for the Braillex ib80-piezo Braille
reader made by F.H. Papenmeier (Germany).
- nosgx [X86-64,SGX] Disables Intel SGX kernel support.
+ nosgx [X86-64,SGX,EARLY] Disables Intel SGX kernel support.
- nosmap [PPC]
+ nosmap [PPC,EARLY]
Disable SMAP (Supervisor Mode Access Prevention)
even if it is supported by processor.
- nosmep [PPC64s]
+ nosmep [PPC64s,EARLY]
Disable SMEP (Supervisor Mode Execution Prevention)
even if it is supported by processor.
- nosmp [SMP] Tells an SMP kernel to act as a UP kernel,
+ nosmp [SMP,EARLY] Tells an SMP kernel to act as a UP kernel,
and disable the IO APIC. legacy for "maxcpus=0".
- nosmt [KNL,S390] Disable symmetric multithreading (SMT).
+ nosmt [KNL,MIPS,PPC,EARLY] Disable symmetric multithreading (SMT).
Equivalent to smt=1.
- [KNL,X86] Disable symmetric multithreading (SMT).
+ [KNL,X86,PPC,S390] Disable symmetric multithreading (SMT).
nosmt=force: Force disable SMT, cannot be undone
via the sysfs control file.
nosoftlockup [KNL] Disable the soft-lockup detector.
nospec_store_bypass_disable
- [HW] Disable all mitigations for the Speculative Store Bypass vulnerability
+ [HW,EARLY] Disable all mitigations for the Speculative
+ Store Bypass vulnerability
- nospectre_bhb [ARM64] Disable all mitigations for Spectre-BHB (branch
+ nospectre_bhb [ARM64,EARLY] Disable all mitigations for Spectre-BHB (branch
history injection) vulnerability. System may allow data leaks
with this option.
- nospectre_v1 [X86,PPC] Disable mitigations for Spectre Variant 1
+ nospectre_v1 [X86,PPC,EARLY] Disable mitigations for Spectre Variant 1
(bounds check bypass). With this option data leaks are
possible in the system.
- nospectre_v2 [X86,PPC_E500,ARM64] Disable all mitigations for
- the Spectre variant 2 (indirect branch prediction)
- vulnerability. System may allow data leaks with this
- option.
+ nospectre_v2 [X86,PPC_E500,ARM64,EARLY] Disable all mitigations
+ for the Spectre variant 2 (indirect branch
+ prediction) vulnerability. System may allow data
+ leaks with this option.
- no-steal-acc [X86,PV_OPS,ARM64,PPC/PSERIES] Disable paravirtualized
- steal time accounting. steal time is computed, but
- won't influence scheduler behaviour
+ no-steal-acc [X86,PV_OPS,ARM64,PPC/PSERIES,RISCV,LOONGARCH,EARLY]
+ Disable paravirtualized steal time accounting. steal time
+ is computed, but won't influence scheduler behaviour
nosync [HW,M68K] Disables sync negotiation for all devices.
- no_timer_check [X86,APIC] Disables the code which tests for
- broken timer IRQ sources.
+ no_timer_check [X86,APIC] Disables the code which tests for broken
+ timer IRQ sources, i.e., the IO-APIC timer. This can
+ work around problems with incorrect timer
+ initialization on some boards.
no_uaccess_flush
- [PPC] Don't flush the L1-D cache after accessing user data.
+ [PPC,EARLY] Don't flush the L1-D cache after accessing user data.
novmcoredd [KNL,KDUMP]
Disable device dump. Device dump allows drivers to
@@ -3887,15 +4594,15 @@
is set.
no-vmw-sched-clock
- [X86,PV_OPS] Disable paravirtualized VMware scheduler
- clock and use the default one.
+ [X86,PV_OPS,EARLY] Disable paravirtualized VMware
+ scheduler clock and use the default one.
nowatchdog [KNL] Disable both lockup detectors, i.e.
soft-lockup and NMI watchdog (hard-lockup).
- nowb [ARM]
+ nowb [ARM,EARLY]
- nox2apic [X86-64,APIC] Do not enable x2APIC mode.
+ nox2apic [X86-64,APIC,EARLY] Do not enable x2APIC mode.
NOTE: this parameter will be ignored on systems with the
LEGACY_XAPIC_DISABLED bit set in the
@@ -3920,20 +4627,7 @@
parameter, xsave area per process might occupy more
memory on xsaves enabled systems.
- nps_mtm_hs_ctr= [KNL,ARC]
- This parameter sets the maximum duration, in
- cycles, each HW thread of the CTOP can run
- without interruptions, before HW switches it.
- The actual maximum duration is 16 times this
- parameter's value.
- Format: integer between 1 and 255
- Default: 255
-
- nptcg= [IA-64] Override max number of concurrent global TLB
- purges which is reported from either PAL_VM_SUMMARY or
- SAL PALO.
-
- nr_cpus= [SMP] Maximum number of processors that an SMP kernel
+ nr_cpus= [SMP,EARLY] Maximum number of processors that an SMP kernel
could support. nr_cpus=n : n >= 1 limits the kernel to
support 'n' processors. It could be larger than the
number of already plugged CPU during bootup, later in
@@ -3944,8 +4638,29 @@
nr_uarts= [SERIAL] maximum number of UARTs to be registered.
- numa=off [KNL, ARM64, PPC, RISCV, SPARC, X86] Disable NUMA, Only
- set up a single NUMA node spanning all memory.
+ numa=off [KNL, ARM64, PPC, RISCV, SPARC, X86, EARLY]
+ Disable NUMA, Only set up a single NUMA node
+ spanning all memory.
+
+ numa=fake=<size>[MG]
+ [KNL, ARM64, RISCV, X86, EARLY]
+ If given as a memory unit, fills all system RAM with
+ nodes of size interleaved over physical nodes.
+
+ numa=fake=<N>
+ [KNL, ARM64, RISCV, X86, EARLY]
+ If given as an integer, fills all system RAM with N
+ fake nodes interleaved over physical nodes.
+
+ numa=fake=<N>U
+ [KNL, ARM64, RISCV, X86, EARLY]
+ If given as an integer followed by 'U', it will
+ divide each physical node into N emulated nodes.
+
+ numa=noacpi [X86] Don't parse the SRAT table for NUMA setup
+
+ numa=nohmat [X86] Don't parse the HMAT table for NUMA setup, or
+ soft-reserved memory partitioning.
numa_balancing= [KNL,ARM64,PPC,RISCV,S390,X86] Enable or disable automatic
NUMA balancing.
@@ -3956,7 +4671,7 @@
This can be set from sysctl after boot.
See Documentation/admin-guide/sysctl/vm.rst for details.
- ohci1394_dma=early [HW] enable debugging via the ohci1394 driver.
+ ohci1394_dma=early [HW,EARLY] enable debugging via the ohci1394 driver.
See Documentation/core-api/debugging-via-ohci1394.rst for more
info.
@@ -3982,7 +4697,8 @@
Once locked, the boundary cannot be changed.
1 indicates lock status, 0 indicates unlock status.
- oops=panic Always panic on oopses. Default is to just kill the
+ oops=panic [KNL,EARLY]
+ Always panic on oopses. Default is to just kill the
process, but there is a small probability of
deadlocking the machine.
This will also cause panics on machine check exceptions.
@@ -3990,21 +4706,19 @@
page_alloc.shuffle=
[KNL] Boolean flag to control whether the page allocator
- should randomize its free lists. The randomization may
- be automatically enabled if the kernel detects it is
- running on a platform with a direct-mapped memory-side
- cache, and this parameter can be used to
- override/disable that behavior. The state of the flag
- can be read from sysfs at:
+ should randomize its free lists. This parameter can be
+ used to enable/disable page randomization. The state of
+ the flag can be read from sysfs at:
/sys/module/page_alloc/parameters/shuffle.
+ This parameter is only available if CONFIG_SHUFFLE_PAGE_ALLOCATOR=y.
- page_owner= [KNL] Boot-time page_owner enabling option.
+ page_owner= [KNL,EARLY] Boot-time page_owner enabling option.
Storage of the information about who allocated
each page is disabled in default. With this switch,
we can turn it on.
on: enable the feature
- page_poison= [KNL] Boot-time parameter changing the state of
+ page_poison= [KNL,EARLY] Boot-time parameter changing the state of
poisoning on the buddy allocator, available with
CONFIG_PAGE_POISONING=y.
off: turn off poisoning (default)
@@ -4014,7 +4728,7 @@
[KNL] Minimal page reporting order
Format: <integer>
Adjust the minimal page reporting order. The page
- reporting is disabled when it exceeds MAX_ORDER.
+ reporting is disabled when it exceeds MAX_PAGE_ORDER.
panic= [KNL] Kernel behaviour on panic: delay <timeout>
timeout > 0: seconds before rebooting
@@ -4022,6 +4736,23 @@
timeout < 0: reboot immediately
Format: <timeout>
+ panic_on_taint= [KNL,EARLY]
+ Bitmask for conditionally calling panic() in add_taint()
+ Format: <hex>[,nousertaint]
+ Hexadecimal bitmask representing the set of TAINT flags
+ that will cause the kernel to panic when add_taint() is
+ called with any of the flags in this set.
+ The optional switch "nousertaint" can be utilized to
+ prevent userspace forced crashes by writing to sysctl
+ /proc/sys/kernel/tainted any flagset matching with the
+ bitmask set on panic_on_taint.
+ See Documentation/admin-guide/tainted-kernels.rst for
+ extra details on the taint flags that users can pick
+ to compose the bitmask to assign to panic_on_taint.
+
+ panic_on_warn=1 panic() instead of WARN(). Useful to cause kdump
+ on a WARN().
+
panic_print= Bitmask for printing system info when panic happens.
User can chose combination of the following bits:
bit 0: print all tasks info
@@ -4029,28 +4760,32 @@
bit 2: print timer info
bit 3: print locks info if CONFIG_LOCKDEP is on
bit 4: print ftrace buffer
- bit 5: print all printk messages in buffer
+ bit 5: replay all kernel messages on consoles at the end of panic
bit 6: print all CPUs backtrace (if available in the arch)
+ bit 7: print only tasks in uninterruptible (blocked) state
*Be aware* that this option may print a _lot_ of lines,
so there are risks of losing older messages in the log.
Use this option carefully, maybe worth to setup a
bigger log buffer with "log_buf_len" along with this.
- panic_on_taint= Bitmask for conditionally calling panic() in add_taint()
- Format: <hex>[,nousertaint]
- Hexadecimal bitmask representing the set of TAINT flags
- that will cause the kernel to panic when add_taint() is
- called with any of the flags in this set.
- The optional switch "nousertaint" can be utilized to
- prevent userspace forced crashes by writing to sysctl
- /proc/sys/kernel/tainted any flagset matching with the
- bitmask set on panic_on_taint.
- See Documentation/admin-guide/tainted-kernels.rst for
- extra details on the taint flags that users can pick
- to compose the bitmask to assign to panic_on_taint.
+ panic_sys_info= A comma separated list of extra information to be dumped
+ on panic.
+ Format: val[,val...]
+ Where @val can be any of the following:
- panic_on_warn panic() instead of WARN(). Useful to cause kdump
- on a WARN().
+ tasks: print all tasks info
+ mem: print system memory info
+ timers: print timers info
+ locks: print locks info if CONFIG_LOCKDEP is on
+ ftrace: print ftrace buffer
+ all_bt: print all CPUs backtrace (if available in the arch)
+ blocked_tasks: print only tasks in uninterruptible (blocked) state
+
+ This is a human readable alternative to the 'panic_print' option.
+
+ panic_console_replay
+ When panic happens, replay all kernel messages on
+ consoles at the end of panic.
parkbd.port= [HW] Parallel port number the keyboard adapter is
connected to, default is 0.
@@ -4171,14 +4906,14 @@
mode 0, bit 1 is for mode 1, and so on. Mode 0 only
allowed by default.
- pause_on_oops=
+ pause_on_oops=<int>
Halt all CPUs after the first oops has been printed for
the specified number of seconds. This is to be used if
your oopses keep scrolling off the screen.
pcbit= [HW,ISDN]
- pci=option[,option...] [PCI] various PCI subsystem options.
+ pci=option[,option...] [PCI,EARLY] various PCI subsystem options.
Some options herein operate on a specific device
or a set of devices (<pci_dev>). These are
@@ -4404,14 +5139,51 @@
bridges without forcing it upstream. Note:
this removes isolation between devices and
may put more devices in an IOMMU group.
+ config_acs=
+ Format:
+ <ACS flags>@<pci_dev>[; ...]
+ Specify one or more PCI devices (in the format
+ specified above) optionally prepended with flags
+ and separated by semicolons. The respective
+ capabilities will be enabled, disabled or
+ unchanged based on what is specified in
+ flags.
+
+ ACS Flags is defined as follows:
+ bit-0 : ACS Source Validation
+ bit-1 : ACS Translation Blocking
+ bit-2 : ACS P2P Request Redirect
+ bit-3 : ACS P2P Completion Redirect
+ bit-4 : ACS Upstream Forwarding
+ bit-5 : ACS P2P Egress Control
+ bit-6 : ACS Direct Translated P2P
+ Each bit can be marked as:
+ '0' – force disabled
+ '1' – force enabled
+ 'x' – unchanged
+ For example,
+ pci=config_acs=10x@pci:0:0
+ would configure all devices that support
+ ACS to enable P2P Request Redirect, disable
+ Translation Blocking, and leave Source
+ Validation unchanged from whatever power-up
+ or firmware set it to.
+
+ Note: this may remove isolation between devices
+ and may put more devices in an IOMMU group.
force_floating [S390] Force usage of floating interrupts.
nomio [S390] Do not use MIO instructions.
norid [S390] ignore the RID field and force use of
one PCI domain per PCI function
+ notph [PCIE] If the PCIE_TPH kernel config parameter
+ is enabled, this kernel boot option can be used
+ to disable PCIe TLP Processing Hints support
+ system-wide.
- pcie_aspm= [PCIE] Forcibly enable or disable PCIe Active State Power
+ pcie_aspm= [PCIE] Forcibly enable or ignore PCIe Active State Power
Management.
- off Disable ASPM.
+ off Don't touch ASPM configuration at all. Leave any
+ configuration done by firmware unchanged.
force Enable ASPM even on devices that claim not to support it.
WARNING: Forcing ASPM on may cause system lockups.
@@ -4447,7 +5219,8 @@
Format: { 0 | 1 }
See arch/parisc/kernel/pdc_chassis.c
- percpu_alloc= Select which percpu first chunk allocator to use.
+ percpu_alloc= [MM,EARLY]
+ Select which percpu first chunk allocator to use.
Currently supported values are "embed" and "page".
Archs may support subset or none of the selections.
See comments in mm/percpu.c for details on each
@@ -4473,6 +5246,18 @@
that number, otherwise (e.g., 'pmu_override=on'), MMCR1
remains 0.
+ pm_async= [PM]
+ Format: off
+ This parameter sets the initial value of the
+ /sys/power/pm_async sysfs knob at boot time.
+ If set to "off", disables asynchronous suspend and
+ resume of devices during system-wide power transitions.
+ This can be useful on platforms where device
+ dependencies are not well-defined, or for debugging
+ power management issues. Asynchronous operations are
+ enabled by default.
+
+
pm_debug_messages [SUSPEND,KNL]
Enable suspend/resume debug messages during boot up.
@@ -4509,6 +5294,11 @@
may be specified.
Format: <port>,<port>....
+ possible_cpus= [SMP,S390,X86]
+ Format: <unsigned int>
+ Set the number of possible CPUs, overriding the
+ regular discovery mechanisms (such as ACPI/FW, etc).
+
powersave=off [PPC] This option disables power saving features.
It specifically disables cpuidle and sets the
platform machine description specific power_save
@@ -4516,12 +5306,12 @@
execution priority.
ppc_strict_facility_enable
- [PPC] This option catches any kernel floating point,
+ [PPC,ENABLE] This option catches any kernel floating point,
Altivec, VSX and SPE outside of regions specifically
allowed (eg kernel_enable_fpu()/kernel_disable_fpu()).
There is some performance impact when enabling this.
- ppc_tm= [PPC]
+ ppc_tm= [PPC,EARLY]
Format: {"off"}
Disable Hardware Transactional Memory
@@ -4530,7 +5320,14 @@
none - Limited to cond_resched() calls
voluntary - Limited to cond_resched() and might_sleep() calls
full - Any section that isn't explicitly preempt disabled
- can be preempted anytime.
+ can be preempted anytime. Tasks will also yield
+ contended spinlocks (if the critical section isn't
+ explicitly preempt disabled beyond the lock itself).
+ lazy - Scheduler controlled. Similar to full but instead
+ of preempting the task immediately, the task gets
+ one HZ tick time to yield itself before the
+ preemption will be forced. One preemption is when the
+ task returns to user space.
print-fatal-signals=
[KNL] debug: print fatal signals
@@ -4560,6 +5357,14 @@
Format: <bool>
default: 0 (auto_verbose is enabled)
+ printk.debug_non_panic_cpus=
+ Allows storing messages from non-panic CPUs into
+ the printk log buffer during panic(). They are
+ flushed to consoles by the panic-CPU on
+ a best-effort basis.
+ Format: <bool> (1/Y/y=enable, 0/N/n=disable)
+ Default: disabled
+
printk.devkmsg={on,off,ratelimit}
Control writing to /dev/kmsg.
on - unlimited logging to /dev/kmsg from userspace
@@ -4570,6 +5375,16 @@
printk.time= Show timing data prefixed to each printk message line
Format: <bool> (1/Y/y=enable, 0/N/n=disable)
+ proc_mem.force_override= [KNL]
+ Format: {always | ptrace | never}
+ Traditionally /proc/pid/mem allows memory permissions to be
+ overridden without restrictions. This option may be set to
+ restrict that. Can be one of:
+ - 'always': traditional behavior always allows mem overrides.
+ - 'ptrace': only allow mem overrides for active ptracers.
+ - 'never': never allow mem overrides.
+ If not specified, default is the CONFIG_PROC_MEM_* choice.
+
processor.max_cstate= [HW,ACPI]
Limit processor to maximum C-state
max_cstate=9 overrides any DMI blacklist limit.
@@ -4580,11 +5395,9 @@
profile= [KNL] Enable kernel profiling via /proc/profile
Format: [<profiletype>,]<number>
- Param: <profiletype>: "schedule", "sleep", or "kvm"
+ Param: <profiletype>: "schedule" or "kvm"
[defaults to kernel profiling]
Param: "schedule" - profile schedule points.
- Param: "sleep" - profile D-state sleeping (millisecs).
- Requires CONFIG_SCHEDSTATS
Param: "kvm" - profile VM exits.
Param: <number> - step/bucket size as a power of 2 for
statistical time based profiling.
@@ -4593,7 +5406,9 @@
prot_virt= [S390] enable hosting protected virtual machines
isolated from the hypervisor (if hardware supports
- that).
+ that). If enabled, the default kernel base address
+ might be overridden even when Kernel Address Space
+ Layout Randomization is disabled.
Format: <bool>
psi= [KNL] Enable or disable pressure stall information
@@ -4631,7 +5446,7 @@
[KNL] Number of legacy pty's. Overwrites compiled-in
default number.
- quiet [KNL] Disable most log messages
+ quiet [KNL,EARLY] Disable most log messages
r128= [HW,DRM]
@@ -4648,17 +5463,17 @@
ramdisk_start= [RAM] RAM disk image start address
random.trust_cpu=off
- [KNL] Disable trusting the use of the CPU's
+ [KNL,EARLY] Disable trusting the use of the CPU's
random number generator (if available) to
initialize the kernel's RNG.
random.trust_bootloader=off
- [KNL] Disable trusting the use of the a seed
+ [KNL,EARLY] Disable trusting the use of the a seed
passed by the bootloader (if available) to
initialize the kernel's RNG.
randomize_kstack_offset=
- [KNL] Enable or disable kernel stack offset
+ [KNL,EARLY] Enable or disable kernel stack offset
randomization, which provides roughly 5 bits of
entropy, frustrating memory corruption attacks
that depend on stack address determinism or
@@ -4717,6 +5532,17 @@
Set maximum number of finished RCU callbacks to
process in one batch.
+ rcutree.csd_lock_suppress_rcu_stall= [KNL]
+ Do only a one-line RCU CPU stall warning when
+ there is an ongoing too-long CSD-lock wait.
+
+ rcutree.do_rcu_barrier= [KNL]
+ Request a call to rcu_barrier(). This is
+ throttled so that userspace tests can safely
+ hammer on the sysfs variable if they so choose.
+ If triggered before the RCU grace-period machinery
+ is fully active, this will error out with EAGAIN.
+
rcutree.dump_tree= [KNL]
Dump the structure of the rcu_node combining tree
out at early boot. This is used for diagnostic
@@ -4736,43 +5562,6 @@
the propagation of recent CPU-hotplug changes up
the rcu_node combining tree.
- rcutree.use_softirq= [KNL]
- If set to zero, move all RCU_SOFTIRQ processing to
- per-CPU rcuc kthreads. Defaults to a non-zero
- value, meaning that RCU_SOFTIRQ is used by default.
- Specify rcutree.use_softirq=0 to use rcuc kthreads.
-
- But note that CONFIG_PREEMPT_RT=y kernels disable
- this kernel boot parameter, forcibly setting it
- to zero.
-
- rcutree.rcu_fanout_exact= [KNL]
- Disable autobalancing of the rcu_node combining
- tree. This is used by rcutorture, and might
- possibly be useful for architectures having high
- cache-to-cache transfer latencies.
-
- rcutree.rcu_fanout_leaf= [KNL]
- Change the number of CPUs assigned to each
- leaf rcu_node structure. Useful for very
- large systems, which will choose the value 64,
- and for NUMA systems with large remote-access
- latencies, which will choose a value aligned
- with the appropriate hardware boundaries.
-
- rcutree.rcu_min_cached_objs= [KNL]
- Minimum number of objects which are cached and
- maintained per one CPU. Object size is equal
- to PAGE_SIZE. The cache allows to reduce the
- pressure to page allocator, also it makes the
- whole algorithm to behave better in low memory
- condition.
-
- rcutree.rcu_delay_page_cache_fill_msec= [KNL]
- Set the page-cache refill delay (in milliseconds)
- in response to low-memory conditions. The range
- of permitted values is in the range 0:100000.
-
rcutree.jiffies_till_first_fqs= [KNL]
Set delay from grace-period initialization to
first attempt to force quiescent states.
@@ -4811,21 +5600,6 @@
When RCU_NOCB_CPU is set, also adjust the
priority of NOCB callback kthreads.
- rcutree.rcu_divisor= [KNL]
- Set the shift-right count to use to compute
- the callback-invocation batch limit bl from
- the number of callbacks queued on this CPU.
- The result will be bounded below by the value of
- the rcutree.blimit kernel parameter. Every bl
- callbacks, the softirq handler will exit in
- order to allow the CPU to do other work.
-
- Please note that this callback-invocation batch
- limit applies only to non-offloaded callback
- invocation. Offloaded callbacks are instead
- invoked in the context of an rcuoc kthread, which
- scheduler will preempt as it does any other task.
-
rcutree.nocb_nobypass_lim_per_jiffy= [KNL]
On callback-offloaded (rcu_nocbs) CPUs,
RCU reduces the lock contention that would
@@ -4839,13 +5613,13 @@
the ->nocb_bypass queue. The definition of "too
many" is supplied by this kernel boot parameter.
- rcutree.rcu_nocb_gp_stride= [KNL]
- Set the number of NOCB callback kthreads in
- each group, which defaults to the square root
- of the number of CPUs. Larger numbers reduce
- the wakeup overhead on the global grace-period
- kthread, but increases that same overhead on
- each group's NOCB grace-period kthread.
+ rcutree.nohz_full_patience_delay= [KNL]
+ On callback-offloaded (rcu_nocbs) CPUs, avoid
+ disturbing RCU unless the grace period has
+ reached the specified age in milliseconds.
+ Defaults to zero. Large values will be capped
+ at five seconds. All values will be rounded down
+ to the nearest value representable by jiffies.
rcutree.qhimark= [KNL]
Set threshold of queued RCU callbacks beyond which
@@ -4864,6 +5638,56 @@
on rcutree.qhimark at boot time and to zero to
disable more aggressive help enlistment.
+ rcutree.rcu_delay_page_cache_fill_msec= [KNL]
+ Set the page-cache refill delay (in milliseconds)
+ in response to low-memory conditions. The range
+ of permitted values is in the range 0:100000.
+
+ rcutree.rcu_divisor= [KNL]
+ Set the shift-right count to use to compute
+ the callback-invocation batch limit bl from
+ the number of callbacks queued on this CPU.
+ The result will be bounded below by the value of
+ the rcutree.blimit kernel parameter. Every bl
+ callbacks, the softirq handler will exit in
+ order to allow the CPU to do other work.
+
+ Please note that this callback-invocation batch
+ limit applies only to non-offloaded callback
+ invocation. Offloaded callbacks are instead
+ invoked in the context of an rcuoc kthread, which
+ scheduler will preempt as it does any other task.
+
+ rcutree.rcu_fanout_exact= [KNL]
+ Disable autobalancing of the rcu_node combining
+ tree. This is used by rcutorture, and might
+ possibly be useful for architectures having high
+ cache-to-cache transfer latencies.
+
+ rcutree.rcu_fanout_leaf= [KNL]
+ Change the number of CPUs assigned to each
+ leaf rcu_node structure. Useful for very
+ large systems, which will choose the value 64,
+ and for NUMA systems with large remote-access
+ latencies, which will choose a value aligned
+ with the appropriate hardware boundaries.
+
+ rcutree.rcu_min_cached_objs= [KNL]
+ Minimum number of objects which are cached and
+ maintained per one CPU. Object size is equal
+ to PAGE_SIZE. The cache allows to reduce the
+ pressure to page allocator, also it makes the
+ whole algorithm to behave better in low memory
+ condition.
+
+ rcutree.rcu_nocb_gp_stride= [KNL]
+ Set the number of NOCB callback kthreads in
+ each group, which defaults to the square root
+ of the number of CPUs. Larger numbers reduce
+ the wakeup overhead on the global grace-period
+ kthread, but increases that same overhead on
+ each group's NOCB grace-period kthread.
+
rcutree.rcu_kick_kthreads= [KNL]
Cause the grace-period kthread to get an extra
wake_up() if it sleeps three times longer than
@@ -4871,6 +5695,13 @@
This wake_up() will be accompanied by a
WARN_ONCE() splat and an ftrace_dump().
+ rcutree.rcu_resched_ns= [KNL]
+ Limit the time spend invoking a batch of RCU
+ callbacks to the specified number of nanoseconds.
+ By default, this limit is checked only once
+ every 32 callbacks in order to limit the pain
+ inflicted by local_clock() overhead.
+
rcutree.rcu_unlock_delay= [KNL]
In CONFIG_RCU_STRICT_GRACE_PERIOD=y kernels,
this specifies an rcu_read_unlock()-time delay
@@ -4885,6 +5716,36 @@
rcu_node tree with an eye towards determining
why a new grace period has not yet started.
+ rcutree.use_softirq= [KNL]
+ If set to zero, move all RCU_SOFTIRQ processing to
+ per-CPU rcuc kthreads. Defaults to a non-zero
+ value, meaning that RCU_SOFTIRQ is used by default.
+ Specify rcutree.use_softirq=0 to use rcuc kthreads.
+
+ But note that CONFIG_PREEMPT_RT=y kernels disable
+ this kernel boot parameter, forcibly setting it
+ to zero.
+
+ rcutree.enable_rcu_lazy= [KNL]
+ To save power, batch RCU callbacks and flush after
+ delay, memory pressure or callback list growing too
+ big.
+
+ rcutree.rcu_normal_wake_from_gp= [KNL]
+ Reduces a latency of synchronize_rcu() call. This approach
+ maintains its own track of synchronize_rcu() callers, so it
+ does not interact with regular callbacks because it does not
+ use a call_rcu[_hurry]() path. Please note, this is for a
+ normal grace period.
+
+ How to enable it:
+
+ echo 1 > /sys/module/rcutree/parameters/rcu_normal_wake_from_gp
+ or pass a boot parameter "rcutree.rcu_normal_wake_from_gp=1"
+
+ Default is 1 if num_possible_cpus() <= 16 and it is not explicitly
+ disabled by the boot parameter passing 0.
+
rcuscale.gp_async= [KNL]
Measure performance of asynchronous
grace-period primitives such as call_rcu().
@@ -4906,6 +5767,15 @@
test until boot completes in order to avoid
interference.
+ rcuscale.kfree_by_call_rcu= [KNL]
+ In kernels built with CONFIG_RCU_LAZY=y, test
+ call_rcu() instead of kfree_rcu().
+
+ rcuscale.kfree_mult= [KNL]
+ Instead of allocating an object of size kfree_obj,
+ allocate one of kfree_mult * sizeof(kfree_obj).
+ Defaults to 1.
+
rcuscale.kfree_rcu_test= [KNL]
Set to measure performance of kfree_rcu() flooding.
@@ -4931,6 +5801,12 @@
Number of loops doing rcuscale.kfree_alloc_num number
of allocations and frees.
+ rcuscale.minruntime= [KNL]
+ Set the minimum test run time in seconds. This
+ does not affect the data-collection interval,
+ but instead allows better measurement of things
+ like CPU consumption.
+
rcuscale.nreaders= [KNL]
Set number of RCU readers. The value -1 selects
N, where N is the number of CPUs. A value
@@ -4945,7 +5821,7 @@
the same as for rcuscale.nreaders.
N, where N is the number of CPUs
- rcuscale.perf_type= [KNL]
+ rcuscale.scale_type= [KNL]
Specify the RCU implementation to test.
rcuscale.shutdown= [KNL]
@@ -4961,6 +5837,11 @@
in microseconds. The default of zero says
no holdoff.
+ rcuscale.writer_holdoff_jiffies= [KNL]
+ Additional write-side holdoff between grace
+ periods, but in jiffies. The default of zero
+ says no holdoff.
+
rcutorture.fqs_duration= [KNL]
Set duration of force_quiescent_state bursts
in microseconds.
@@ -4996,7 +5877,42 @@
rcutorture.gp_cond= [KNL]
Use conditional/asynchronous update-side
- primitives, if available.
+ normal-grace-period primitives, if available.
+
+ rcutorture.gp_cond_exp= [KNL]
+ Use conditional/asynchronous update-side
+ expedited-grace-period primitives, if available.
+
+ rcutorture.gp_cond_full= [KNL]
+ Use conditional/asynchronous update-side
+ normal-grace-period primitives that also take
+ concurrent expedited grace periods into account,
+ if available.
+
+ rcutorture.gp_cond_exp_full= [KNL]
+ Use conditional/asynchronous update-side
+ expedited-grace-period primitives that also take
+ concurrent normal grace periods into account,
+ if available.
+
+ rcutorture.gp_cond_wi= [KNL]
+ Nominal wait interval for normal conditional
+ grace periods (specified by rcutorture's
+ gp_cond and gp_cond_full module parameters),
+ in microseconds. The actual wait interval will
+ be randomly selected to nanosecond granularity up
+ to this wait interval. Defaults to 16 jiffies,
+ for example, 16,000 microseconds on a system
+ with HZ=1000.
+
+ rcutorture.gp_cond_wi_exp= [KNL]
+ Nominal wait interval for expedited conditional
+ grace periods (specified by rcutorture's
+ gp_cond_exp and gp_cond_exp_full module
+ parameters), in microseconds. The actual wait
+ interval will be randomly selected to nanosecond
+ granularity up to this wait interval. Defaults to
+ 128 microseconds.
rcutorture.gp_exp= [KNL]
Use expedited update-side primitives, if available.
@@ -5005,6 +5921,43 @@
Use normal (non-expedited) asynchronous
update-side primitives, if available.
+ rcutorture.gp_poll= [KNL]
+ Use polled update-side normal-grace-period
+ primitives, if available.
+
+ rcutorture.gp_poll_exp= [KNL]
+ Use polled update-side expedited-grace-period
+ primitives, if available.
+
+ rcutorture.gp_poll_full= [KNL]
+ Use polled update-side normal-grace-period
+ primitives that also take concurrent expedited
+ grace periods into account, if available.
+
+ rcutorture.gp_poll_exp_full= [KNL]
+ Use polled update-side expedited-grace-period
+ primitives that also take concurrent normal
+ grace periods into account, if available.
+
+ rcutorture.gp_poll_wi= [KNL]
+ Nominal wait interval for normal conditional
+ grace periods (specified by rcutorture's
+ gp_poll and gp_poll_full module parameters),
+ in microseconds. The actual wait interval will
+ be randomly selected to nanosecond granularity up
+ to this wait interval. Defaults to 16 jiffies,
+ for example, 16,000 microseconds on a system
+ with HZ=1000.
+
+ rcutorture.gp_poll_wi_exp= [KNL]
+ Nominal wait interval for expedited conditional
+ grace periods (specified by rcutorture's
+ gp_poll_exp and gp_poll_exp_full module
+ parameters), in microseconds. The actual wait
+ interval will be randomly selected to nanosecond
+ granularity up to this wait interval. Defaults to
+ 128 microseconds.
+
rcutorture.gp_sync= [KNL]
Use normal (non-expedited) synchronous
update-side primitives, if available. If all
@@ -5013,6 +5966,31 @@
are zero, rcutorture acts as if is interpreted
they are all non-zero.
+ rcutorture.gpwrap_lag= [KNL]
+ Enable grace-period wrap lag testing. Setting
+ to false prevents the gpwrap lag test from
+ running. Default is true.
+
+ rcutorture.gpwrap_lag_gps= [KNL]
+ Set the value for grace-period wrap lag during
+ active lag testing periods. This controls how many
+ grace periods differences we tolerate between
+ rdp and rnp's gp_seq before setting overflow flag.
+ The default is always set to 8.
+
+ rcutorture.gpwrap_lag_cycle_mins= [KNL]
+ Set the total cycle duration for gpwrap lag
+ testing in minutes. This is the total time for
+ one complete cycle of active and inactive
+ testing periods. Default is 30 minutes.
+
+ rcutorture.gpwrap_lag_active_mins= [KNL]
+ Set the duration for which gpwrap lag is active
+ within each cycle, in minutes. During this time,
+ the grace-period wrap lag will be set to the
+ value specified by gpwrap_lag_gps. Default is
+ 5 minutes.
+
rcutorture.irqreader= [KNL]
Run RCU readers from irq handlers, or, more
accurately, from a timer handler. Not all RCU
@@ -5058,10 +6036,21 @@
Set time (jiffies) between CPU-hotplug operations,
or zero to disable CPU-hotplug testing.
- rcutorture.read_exit= [KNL]
- Set the number of read-then-exit kthreads used
- to test the interaction of RCU updaters and
- task-exit processing.
+ rcutorture.preempt_duration= [KNL]
+ Set duration (in milliseconds) of preemptions
+ by a high-priority FIFO real-time task. Set to
+ zero (the default) to disable. The CPUs to
+ preempt are selected randomly from the set that
+ are online at a given point in time. Races with
+ CPUs going offline are ignored, with that attempt
+ at preemption skipped.
+
+ rcutorture.preempt_interval= [KNL]
+ Set interval (in milliseconds, defaulting to one
+ second) between preemptions by a high-priority
+ FIFO real-time task. This delay is mediated
+ by an hrtimer and is further fuzzed to avoid
+ inadvertent synchronizations.
rcutorture.read_exit_burst= [KNL]
The number of times in a given read-then-exit
@@ -5072,6 +6061,14 @@
The delay, in seconds, between successive
read-then-exit testing episodes.
+ rcutorture.reader_flavor= [KNL]
+ A bit mask indicating which readers to use.
+ If there is more than one bit set, the readers
+ are entered from low-order bit up, and are
+ exited in the opposite order. For SRCU, the
+ 0x1 bit is normal readers, 0x2 NMI-safe readers,
+ and 0x4 light-weight readers.
+
rcutorture.shuffle_interval= [KNL]
Set task-shuffle interval (s). Shuffling tasks
allows some CPUs to go into dyntick-idle mode
@@ -5087,14 +6084,29 @@
rcutorture.stall_cpu_block= [KNL]
Sleep while stalling if set. This will result
- in warnings from preemptible RCU in addition
- to any other stall-related activity.
+ in warnings from preemptible RCU in addition to
+ any other stall-related activity. Note that
+ in kernels built with CONFIG_PREEMPTION=n and
+ CONFIG_PREEMPT_COUNT=y, this parameter will
+ cause the CPU to pass through a quiescent state.
+ Given CONFIG_PREEMPTION=n, this will suppress
+ RCU CPU stall warnings, but will instead result
+ in scheduling-while-atomic splats.
+
+ Use of this module parameter results in splats.
+
rcutorture.stall_cpu_holdoff= [KNL]
Time to wait (s) after boot before inducing stall.
rcutorture.stall_cpu_irqsoff= [KNL]
- Disable interrupts while stalling if set.
+ Disable interrupts while stalling if set, but only
+ on the first stall in the set.
+
+ rcutorture.stall_cpu_repeat= [KNL]
+ Number of times to repeat the stall sequence,
+ so that rcutorture.stall_cpu_repeat=3 will result
+ in four stall sequences.
rcutorture.stall_gp_kthread= [KNL]
Duration (s) of forced sleep within RCU
@@ -5120,6 +6132,11 @@
rcutorture.test_boost_duration= [KNL]
Duration (s) of each individual boost test.
+ rcutorture.test_boost_holdoff= [KNL]
+ Holdoff time (s) from start of test to the start
+ of RCU priority-boost testing. Defaults to zero,
+ that is, no holdoff.
+
rcutorture.test_boost_interval= [KNL]
Interval (s) between each boost test.
@@ -5137,6 +6154,12 @@
Dump ftrace buffer after reporting RCU CPU
stall warning.
+ rcupdate.rcu_cpu_stall_notifiers= [KNL]
+ Provide RCU CPU stall notifiers, but see the
+ warnings in the RCU_CPU_STALL_NOTIFIER Kconfig
+ option's help text. TL;DR: You almost certainly
+ do not want rcupdate.rcu_cpu_stall_notifiers.
+
rcupdate.rcu_cpu_stall_suppress= [KNL]
Suppress RCU CPU stall warning messages.
@@ -5233,6 +6256,13 @@
number avoids disturbing real-time workloads,
but lengthens grace periods.
+ rcupdate.rcu_task_lazy_lim= [KNL]
+ Number of callbacks on a given CPU that will
+ cancel laziness on that CPU. Use -1 to disable
+ cancellation of laziness, but be advised that
+ doing so increases the danger of OOM due to
+ callback flooding.
+
rcupdate.rcu_task_stall_info= [KNL]
Set initial timeout in jiffies for RCU task stall
informational messages, which give some indication
@@ -5262,6 +6292,21 @@
A change in value does not take effect until
the beginning of the next grace period.
+ rcupdate.rcu_tasks_lazy_ms= [KNL]
+ Set timeout in milliseconds RCU Tasks asynchronous
+ callback batching for call_rcu_tasks().
+ A negative value will take the default. A value
+ of zero will disable batching. Batching is
+ always disabled for synchronize_rcu_tasks().
+
+ rcupdate.rcu_tasks_trace_lazy_ms= [KNL]
+ Set timeout in milliseconds RCU Tasks
+ Trace asynchronous callback batching for
+ call_rcu_tasks_trace(). A negative value
+ will take the default. A value of zero will
+ disable batching. Batching is always disabled
+ for synchronize_rcu_tasks_trace().
+
rcupdate.rcu_self_test= [KNL]
Run the RCU early boot self tests
@@ -5270,7 +6315,7 @@
Run specified binary instead of /init from the ramdisk,
used for early userspace startup. See initrd.
- rdrand= [X86]
+ rdrand= [X86,EARLY]
force - Override the decision by the kernel to hide the
advertisement of RDRAND support (this affects
certain AMD processors because of buggy BIOS
@@ -5280,7 +6325,7 @@
rdt= [HW,X86,RDT]
Turn on/off individual RDT features. List is:
cmt, mbmtotal, mbmlocal, l3cat, l3cdp, l2cat, l2cdp,
- mba, smba, bmec.
+ mba, smba, bmec, abmc, sdciae.
E.g. to turn on cmt and turn off mba use:
rdt=cmt,!mba
@@ -5298,12 +6343,67 @@
reboot_cpu is s[mp]#### with #### being the processor
to be used for rebooting.
+ acpi
+ Use the ACPI RESET_REG in the FADT. If ACPI is not
+ configured or the ACPI reset does not work, the reboot
+ path attempts the reset using the keyboard controller.
+
+ bios
+ Use the CPU reboot vector for warm reset
+
+ cold
+ Set the cold reboot flag
+
+ default
+ There are some built-in platform specific "quirks"
+ - you may see: "reboot: <name> series board detected.
+ Selecting <type> for reboots." In the case where you
+ think the quirk is in error (e.g. you have newer BIOS,
+ or newer board) using this option will ignore the
+ built-in quirk table, and use the generic default
+ reboot actions.
+
+ efi
+ Use efi reset_system runtime service. If EFI is not
+ configured or the EFI reset does not work, the reboot
+ path attempts the reset using the keyboard controller.
+
+ force
+ Don't stop other CPUs on reboot. This can make reboot
+ more reliable in some cases.
+
+ kbd
+ Use the keyboard controller. cold reset (default)
+
+ pci
+ Use a write to the PCI config space register 0xcf9 to
+ trigger reboot.
+
+ triple
+ Force a triple fault (init)
+
+ warm
+ Don't set the cold reboot flag
+
+ Using warm reset will be much faster especially on big
+ memory systems because the BIOS will not go through
+ the memory check. Disadvantage is that not all
+ hardware will be completely reinitialized on reboot so
+ there may be boot problems on some systems.
+
+
refscale.holdoff= [KNL]
Set test-start holdoff period. The purpose of
this parameter is to delay the start of the
test until boot completes in order to avoid
interference.
+ refscale.lookup_instances= [KNL]
+ Number of data elements to use for the forms of
+ SLAB_TYPESAFE_BY_RCU testing. A negative number
+ is negated and multiplied by nr_cpu_ids, while
+ zero specifies nr_cpu_ids.
+
refscale.loops= [KNL]
Set the number of loops over the synchronization
primitive under test. Increasing this number
@@ -5343,6 +6443,13 @@
print every Nth verbose statement, where N is the value
specified.
+ regulator_ignore_unused
+ [REGULATOR]
+ Prevents regulator framework from disabling regulators
+ that are unused, due no driver claiming them. This may
+ be useful for debug and development, but should not be
+ needed on a platform with proper driver support.
+
relax_domain_level=
[KNL, SMP] Set scheduler's default relax_domain_level.
See Documentation/admin-guide/cgroup-v1/cpusets.rst.
@@ -5353,7 +6460,29 @@
them. If <base> is less than 0x10000, the region
is assumed to be I/O ports; otherwise it is memory.
- reservetop= [X86-32]
+ reserve_mem= [RAM]
+ Format: nn[KMG]:<align>:<label>
+ Reserve physical memory and label it with a name that
+ other subsystems can use to access it. This is typically
+ used for systems that do not wipe the RAM, and this command
+ line will try to reserve the same physical memory on
+ soft reboots. Note, it is not guaranteed to be the same
+ location. For example, if anything about the system changes
+ or if booting a different kernel. It can also fail if KASLR
+ places the kernel at the location of where the RAM reservation
+ was from a previous boot, the new reservation will be at a
+ different location.
+ Any subsystem using this feature must add a way to verify
+ that the contents of the physical memory is from a previous
+ boot, as there may be cases where the memory will not be
+ located at the same location.
+
+ The format is size:align:label for example, to request
+ 12 megabytes of 4096 alignment for ramoops:
+
+ reserve_mem=12M:4096:oops ramoops.mem_name=oops
+
+ reservetop= [X86-32,EARLY]
Format: nn[KMG]
Reserves a hole at the top of the kernel virtual
address space.
@@ -5379,7 +6508,8 @@
Useful for devices that are detected asynchronously
(e.g. USB and MMC devices).
- retain_initrd [RAM] Keep initrd memory after extraction
+ retain_initrd [RAM] Keep initrd memory after extraction. After boot, it will
+ be accessible via /sys/firmware/initrd.
retbleed= [X86] Control mitigation of RETBleed (Arbitrary
Speculative Code Execution with Return Instructions)
@@ -5392,7 +6522,7 @@
that don't.
off - no mitigation
- auto - automatically select a migitation
+ auto - automatically select a mitigation
auto,nosmt - automatically select a mitigation,
disabling SMT if necessary for
the full mitigation (only on Zen1
@@ -5430,46 +6560,73 @@
2 The "airplane mode" button toggles between everything
blocked and everything unblocked.
- rhash_entries= [KNL,NET]
- Set number of hash buckets for route cache
-
ring3mwait=disable
[KNL] Disable ring 3 MONITOR/MWAIT feature on supported
CPUs.
+ riscv_isa_fallback [RISCV,EARLY]
+ When CONFIG_RISCV_ISA_FALLBACK is not enabled, permit
+ falling back to detecting extension support by parsing
+ "riscv,isa" property on devicetree systems when the
+ replacement properties are not found. See the Kconfig
+ entry for RISCV_ISA_FALLBACK.
+
ro [KNL] Mount root device read-only on boot
- rodata= [KNL]
+ rodata= [KNL,EARLY]
on Mark read-only kernel memory as read-only (default).
off Leave read-only kernel memory writable for debugging.
- full Mark read-only kernel memory and aliases as read-only
- [arm64]
+ noalias Mark read-only kernel memory as read-only but retain
+ writable aliases in the direct map for regions outside
+ of the kernel image. [arm64]
rockchip.usb_uart
+ [EARLY]
Enable the uart passthrough on the designated usb port
on Rockchip SoCs. When active, the signals of the
debug-uart get routed to the D+ and D- pins of the usb
port and the regular usb controller gets disabled.
root= [KNL] Root filesystem
- See name_to_dev_t comment in init/do_mounts.c.
+ Usually this is a block device specifier of some kind,
+ see the early_lookup_bdev comment in
+ block/early-lookup.c for details.
+ Alternatively this can be "ram" for the legacy initial
+ ramdisk, "nfs" and "cifs" for root on a network file
+ system, or "mtd" and "ubi" for mounting from raw flash.
rootdelay= [KNL] Delay (in seconds) to pause before attempting to
mount the root filesystem
rootflags= [KNL] Set root filesystem mount option string
+ initramfs_options= [KNL]
+ Specify mount options for for the initramfs mount.
+
rootfstype= [KNL] Set root filesystem type
rootwait [KNL] Wait (indefinitely) for root device to show up.
Useful for devices that are detected asynchronously
(e.g. USB and MMC devices).
+ rootwait= [KNL] Maximum time (in seconds) to wait for root device
+ to show up before attempting to mount the root
+ filesystem.
+
rproc_mem=nn[KMG][@address]
[KNL,ARM,CMA] Remoteproc physical memory block.
Memory area to be used by remote processor image,
managed by CMA.
+ rseq_debug= [KNL] Enable or disable restartable sequence
+ debug mode. Defaults to CONFIG_RSEQ_DEBUG_DEFAULT_ENABLE.
+ Format: <bool>
+
+ rt_group_sched= [KNL] Enable or disable SCHED_RR/FIFO group scheduling
+ when CONFIG_RT_GROUP_SCHED=y. Defaults to
+ !CONFIG_RT_GROUP_SCHED_DEFAULT_DISABLED.
+ Format: <bool>
+
rw [KNL] Mount root device read-write on boot
S [KNL] Run init in single mode
@@ -5477,9 +6634,10 @@
s390_iommu= [HW,S390]
Set s390 IOTLB flushing mode
strict
- With strict flushing every unmap operation will result in
- an IOTLB flush. Default is lazy flushing before reuse,
- which is faster.
+ With strict flushing every unmap operation will result
+ in an IOTLB flush. Default is lazy flushing before
+ reuse, which is faster. Deprecated, equivalent to
+ iommu.strict=1.
s390_iommu_aperture= [KNL,S390]
Specifies the size of the per device DMA address space
@@ -5496,7 +6654,12 @@
sa1100ir [NET]
See drivers/net/irda/sa1100_ir.c.
- sched_verbose [KNL] Enables verbose scheduler debug messages.
+ sched_proxy_exec= [KNL]
+ Enables or disables "proxy execution" style
+ solution to mutex-based priority inversion.
+ Format: <bool>
+
+ sched_verbose [KNL,EARLY] Enables verbose scheduler debug messages.
schedstats= [KNL,X86] Enable or disable scheduled statistics.
Allowed values are enable and disable. This feature
@@ -5504,6 +6667,7 @@
but is useful for debugging and performance tuning.
sched_thermal_decay_shift=
+ [Deprecated]
[KNL, SMP] Set a decay shift for scheduler thermal
pressure signal. Thermal pressure signal follows the
default decay period of other scheduler pelt
@@ -5611,7 +6775,11 @@
non-zero "wait" parameter. See weight_single
and weight_many.
- skew_tick= [KNL] Offset the periodic timer tick per cpu to mitigate
+ sdw_mclk_divider=[SDW]
+ Specify the MCLK divider for Intel SoundWire buses in
+ case the BIOS does not provide the clock rate properly.
+
+ skew_tick= [KNL,EARLY] Offset the periodic timer tick per cpu to mitigate
xtime_lock contention on larger systems, and/or RCU lock
contention on all systems with CONFIG_MAXSMP set.
Format: { "0" | "1" }
@@ -5633,7 +6801,16 @@
serialnumber [BUGS=X86-32]
- sev=option[,option...] [X86-64] See Documentation/arch/x86/x86_64/boot-options.rst
+ sev=option[,option...] [X86-64]
+
+ debug
+ Enable debug messages.
+
+ nosnp
+ Do not enable SEV-SNP (applies to host/hypervisor
+ only). Setting 'nosnp' avoids the RMP check overhead
+ in memory accesses when users do not want to run
+ SEV-SNP guests.
shapers= [NET]
Maximal number of shapers.
@@ -5647,14 +6824,47 @@
apic=verbose is specified.
Example: apic=debug show_lapic=all
- simeth= [IA-64]
- simscsi=
+ slab_debug[=options[,slabs][;[options[,slabs]]...] [MM]
+ Enabling slab_debug allows one to determine the
+ culprit if slab objects become corrupted. Enabling
+ slab_debug can create guard zones around objects and
+ may poison objects when not in use. Also tracks the
+ last alloc / free. For more information see
+ Documentation/admin-guide/mm/slab.rst.
+ (slub_debug legacy name also accepted for now)
- slram= [HW,MTD]
+ Using this option implies the "no_hash_pointers"
+ option which can be undone by adding the
+ "hash_pointers=always" option.
+
+ slab_max_order= [MM]
+ Determines the maximum allowed order for slabs.
+ A high setting may cause OOMs due to memory
+ fragmentation. For more information see
+ Documentation/admin-guide/mm/slab.rst.
+ (slub_max_order legacy name also accepted for now)
slab_merge [MM]
Enable merging of slabs with similar size when the
kernel is built without CONFIG_SLAB_MERGE_DEFAULT.
+ (slub_merge legacy name also accepted for now)
+
+ slab_min_objects= [MM]
+ The minimum number of objects per slab. SLUB will
+ increase the slab order up to slab_max_order to
+ generate a sufficiently large slab able to contain
+ the number of objects indicated. The higher the number
+ of objects the smaller the overhead of tracking slabs
+ and the less frequently locks need to be acquired.
+ For more information see
+ Documentation/admin-guide/mm/slab.rst.
+ (slub_min_objects legacy name also accepted for now)
+
+ slab_min_order= [MM]
+ Determines the minimum page order for slabs. Must be
+ lower or equal to slab_max_order. For more information see
+ Documentation/admin-guide/mm/slab.rst.
+ (slub_min_order legacy name also accepted for now)
slab_nomerge [MM]
Disable merging of slabs with similar size. May be
@@ -5667,48 +6877,21 @@
cache (risks via metadata attacks are mostly
unchanged). Debug options disable merging on their
own.
- For more information see Documentation/mm/slub.rst.
-
- slab_max_order= [MM, SLAB]
- Determines the maximum allowed order for slabs.
- A high setting may cause OOMs due to memory
- fragmentation. Defaults to 1 for systems with
- more than 32MB of RAM, 0 otherwise.
-
- slub_debug[=options[,slabs][;[options[,slabs]]...] [MM, SLUB]
- Enabling slub_debug allows one to determine the
- culprit if slab objects become corrupted. Enabling
- slub_debug can create guard zones around objects and
- may poison objects when not in use. Also tracks the
- last alloc / free. For more information see
- Documentation/mm/slub.rst.
-
- slub_max_order= [MM, SLUB]
- Determines the maximum allowed order for slabs.
- A high setting may cause OOMs due to memory
- fragmentation. For more information see
- Documentation/mm/slub.rst.
-
- slub_min_objects= [MM, SLUB]
- The minimum number of objects per slab. SLUB will
- increase the slab order up to slub_max_order to
- generate a sufficiently large slab able to contain
- the number of objects indicated. The higher the number
- of objects the smaller the overhead of tracking slabs
- and the less frequently locks need to be acquired.
- For more information see Documentation/mm/slub.rst.
-
- slub_min_order= [MM, SLUB]
- Determines the minimum page order for slabs. Must be
- lower than slub_max_order.
- For more information see Documentation/mm/slub.rst.
-
- slub_merge [MM, SLUB]
- Same with slab_merge.
+ For more information see
+ Documentation/admin-guide/mm/slab.rst.
+ (slub_nomerge legacy name also accepted for now)
+
+ slab_strict_numa [MM]
+ Support memory policies on a per object level
+ in the slab allocator. The default is for memory
+ policies to be applied at the folio level when
+ a new folio is needed or a partial folio is
+ retrieved from the lists. Increases overhead
+ in the slab fastpaths but gains more accurate
+ NUMA kernel object placement which helps with slow
+ interconnects in NUMA systems.
- slub_nomerge [MM, SLUB]
- Same with slab_nomerge. This is supported for legacy.
- See slab_nomerge for more information.
+ slram= [HW,MTD]
smart2= [HW]
Format: <io1>[,<io2>[,...,<io8>]]
@@ -5724,6 +6907,13 @@
This feature may be more efficiently disabled
using the csdlock_debug- kernel parameter.
+ smp.panic_on_ipistall= [KNL]
+ If a csd_lock_timeout extends for more than
+ the specified number of milliseconds, panic the
+ system. By default, let CSD-lock acquisition
+ take as long as they take. Specifying 300,000
+ for this value provides a 5-minute timeout.
+
smsc-ircc2.nopnp [HW] Don't use PNP to discover SMC devices
smsc-ircc2.ircc_cfg= [HW] Device configuration I/O port
smsc-ircc2.ircc_sir= [HW] SIR base I/O port
@@ -5735,10 +6925,10 @@
1: Fast pin select (default)
2: ATC IRMode
- smt= [KNL,S390] Set the maximum number of threads (logical
- CPUs) to use per physical CPU on systems capable of
- symmetric multithreading (SMT). Will be capped to the
- actual hardware limit.
+ smt= [KNL,MIPS,S390,EARLY] Set the maximum number of threads
+ (logical CPUs) to use per physical CPU on systems
+ capable of symmetric multithreading (SMT). Will
+ be capped to the actual hardware limit.
Format: <integer>
Default: -1 (no limit)
@@ -5760,7 +6950,22 @@
sonypi.*= [HW] Sony Programmable I/O Control Device driver
See Documentation/admin-guide/laptops/sonypi.rst
- spectre_v2= [X86] Control mitigation of Spectre variant 2
+ spectre_bhi= [X86] Control mitigation of Branch History Injection
+ (BHI) vulnerability. This setting affects the
+ deployment of the HW BHI control and the SW BHB
+ clearing sequence.
+
+ on - (default) Enable the HW or SW mitigation as
+ needed. This protects the kernel from
+ both syscalls and VMs.
+ vmexit - On systems which don't have the HW mitigation
+ available, enable the SW mitigation on vmexit
+ ONLY. On such systems, the host kernel is
+ protected from VM-originated BHI attacks, but
+ may still be vulnerable to syscall attacks.
+ off - Disable the mitigation.
+
+ spectre_v2= [X86,EARLY] Control mitigation of Spectre variant 2
(indirect branch speculation) vulnerability.
The default operation protects the kernel from
user space attacks.
@@ -5775,11 +6980,13 @@
Selecting 'on' will, and 'auto' may, choose a
mitigation method at run time according to the
CPU, the available microcode, the setting of the
- CONFIG_RETPOLINE configuration option, and the
- compiler with which the kernel was built.
+ CONFIG_MITIGATION_RETPOLINE configuration option,
+ and the compiler with which the kernel was built.
Selecting 'on' will also enable the mitigation
against user space to user space task attacks.
+ Selecting specific mitigation does not force enable
+ user mitigations.
Selecting 'off' will disable both the kernel and
the user space protections.
@@ -5839,8 +7046,19 @@
Not specifying this option is equivalent to
spectre_v2_user=auto.
+ spec_rstack_overflow=
+ [X86,EARLY] Control RAS overflow mitigation on AMD Zen CPUs
+
+ off - Disable mitigation
+ microcode - Enable microcode mitigation only
+ safe-ret - Enable sw-only safe RET mitigation (default)
+ ibpb - Enable mitigation by issuing IBPB on
+ kernel entry
+ ibpb-vmexit - Issue IBPB only on VMEXIT
+ (cloud-specific mitigation)
+
spec_store_bypass_disable=
- [HW] Control Speculative Store Bypass (SSB) Disable mitigation
+ [HW,EARLY] Control Speculative Store Bypass (SSB) Disable mitigation
(Speculative Store Bypass vulnerability)
Certain CPUs are vulnerable to an exploit against a
@@ -5891,11 +7109,6 @@
Not specifying this option is equivalent to
spec_store_bypass_disable=auto.
- spia_io_base= [HW,MTD]
- spia_fio_base=
- spia_pedr=
- spia_peddr=
-
split_lock_detect=
[X86] Enable split lock detection or bus lock detection
@@ -5936,7 +7149,7 @@
#DB exception for bus lock is triggered only when
CPL > 0.
- srbds= [X86,INTEL]
+ srbds= [X86,INTEL,EARLY]
Control the Special Register Buffer Data Sampling
(SRBDS) mitigation.
@@ -6023,7 +7236,7 @@
srcutree.convert_to_big must have the 0x10 bit
set for contention-based conversions to occur.
- ssbd= [ARM64,HW]
+ ssbd= [ARM64,HW,EARLY]
Speculative Store Bypass Disable control
On CPUs that are vulnerable to the Speculative
@@ -6047,14 +7260,19 @@
growing up) the main stack are reserved for no other
mapping. Default value is 256 pages.
- stack_depot_disable= [KNL]
+ stack_depot_disable= [KNL,EARLY]
Setting this to true through kernel command line will
disable the stack depot thereby saving the static memory
consumed by the stack hash table. By default this is set
to false.
+ stack_depot_max_pools= [KNL,EARLY]
+ Specify the maximum number of pools to use for storing
+ stack traces. Pools are allocated on-demand up to this
+ limit. Default value is 8191 pools.
+
stacktrace [FTRACE]
- Enabled the stack tracer on boot up.
+ Enable the stack tracer on boot up.
stacktrace_filter=[function-list]
[FTRACE] Limit the functions that the stack tracer
@@ -6086,16 +7304,19 @@
be used to filter out binaries which have
not yet been made aware of AT_MINSIGSTKSZ.
- stress_hpt [PPC]
+ stress_hpt [PPC,EARLY]
Limits the number of kernel HPT entries in the hash
page table to increase the rate of hash page table
faults on kernel addresses.
- stress_slb [PPC]
+ stress_slb [PPC,EARLY]
Limits the number of kernel SLB entries, and flushes
them frequently to increase the rate of SLB faults
on kernel addresses.
+ no_slb_preload [PPC,EARLY]
+ Disables slb preloading for userspace.
+
sunrpc.min_resvport=
sunrpc.max_resvport=
[NFS,SUNRPC]
@@ -6151,7 +7372,7 @@
This parameter controls use of the Protected
Execution Facility on pSeries.
- swiotlb= [ARM,IA-64,PPC,MIPS,X86]
+ swiotlb= [ARM,PPC,MIPS,X86,S390,EARLY]
Format: { <int> [,<int>] | force | noforce }
<int> -- Number of I/O TLB slabs
<int> -- Second integer after comma. Number of swiotlb
@@ -6161,7 +7382,7 @@
wouldn't be automatically used by the kernel
noforce -- Never use bounce buffers (for debugging)
- switches= [HW,M68k]
+ switches= [HW,M68k,EARLY]
sysctl.*= [KNL]
Set a sysctl parameter, right before loading the init
@@ -6207,10 +7428,6 @@
-1: disable all critical trip points in all thermal zones
<degrees C>: override all critical trip points
- thermal.nocrt= [HW,ACPI]
- Set to disable actions on ACPI thermal zone
- critical and hot trip points.
-
thermal.off= [HW,ACPI]
1: disable ACPI thermal control
@@ -6224,11 +7441,30 @@
<deci-seconds>: poll all this frequency
0: no polling (default)
- threadirqs [KNL]
+ thp_anon= [KNL]
+ Format: <size>[KMG],<size>[KMG]:<state>;<size>[KMG]-<size>[KMG]:<state>
+ state is one of "always", "madvise", "never" or "inherit".
+ Control the default behavior of the system with respect
+ to anonymous transparent hugepages.
+ Can be used multiple times for multiple anon THP sizes.
+ See Documentation/admin-guide/mm/transhuge.rst for more
+ details.
+
+ threadirqs [KNL,EARLY]
Force threading of all interrupt handlers except those
marked explicitly IRQF_NO_THREAD.
- topology= [S390]
+ thp_shmem= [KNL]
+ Format: <size>[KMG],<size>[KMG]:<policy>;<size>[KMG]-<size>[KMG]:<policy>
+ Control the default policy of each hugepage size for the
+ internal shmem mount. <policy> is one of policies available
+ for the shmem mount ("always", "inherit", "never", "within_size",
+ and "advise").
+ It can be used multiple times for multiple shmem THP sizes.
+ See Documentation/admin-guide/mm/transhuge.rst for more
+ details.
+
+ topology= [S390,EARLY]
Format: {off | on}
Specify if the kernel should make use of the cpu
topology information if the hardware supports this.
@@ -6236,12 +7472,6 @@
e.g. base its process migration decisions on it.
Default is on.
- topology_updates= [KNL, PPC, NUMA]
- Format: {off}
- Specify if the kernel should ignore (off)
- topology updates sent by the hypervisor to this
- LPAR.
-
torture.disable_onoff_at_boot= [KNL]
Prevent the CPU-hotplug component of torturing
until after init has spawned.
@@ -6261,7 +7491,22 @@
torture.verbose_sleep_duration= [KNL]
Duration of each verbose-printk() sleep in jiffies.
- tp720= [HW,PS2]
+ tpm.disable_pcr_integrity= [HW,TPM]
+ Do not protect PCR registers from unintended physical
+ access, or interposers in the bus by the means of
+ having an integrity protected session wrapped around
+ TPM2_PCR_Extend command. Consider this in a situation
+ where TPM is heavily utilized by IMA, thus protection
+ causing a major performance hit, and the space where
+ machines are deployed is by other means guarded.
+
+ tpm_crb_ffa.busy_timeout_ms= [ARM64,TPM]
+ Maximum time in milliseconds to retry sending a message
+ to the TPM service before giving up. This parameter controls
+ how long the system will continue retrying when the TPM
+ service is busy.
+ Format: <unsigned int>
+ Default: 2000 (2 seconds)
tpm_suspend_pcr=[HW,TPM]
Format: integer pcr id
@@ -6272,6 +7517,13 @@
This will guarantee that all the other pcrs
are saved.
+ tpm_tis.interrupts= [HW,TPM]
+ Enable interrupts for the MMIO based physical layer
+ for the FIFO interface. By default it is set to false
+ (0). For more information about TPM hardware interfaces
+ defined by Trusted Computing Group (TCG) see
+ https://trustedcomputinggroup.org/resource/pc-client-platform-tpm-profile-ptp-specification/
+
tp_printk [FTRACE]
Have the tracepoints sent to printk as well as the
tracing ring buffer. This is useful for early boot up
@@ -6282,7 +7534,7 @@
To turn off having tracepoints sent to printk,
echo 0 > /proc/sys/kernel/tracepoint_printk
Note, echoing 1 into this file without the
- tracepoint_printk kernel cmdline option has no effect.
+ tp_printk kernel cmdline option has no effect.
The tp_printk_stop_on_boot (see below) can also be used
to stop the printing of events to console at
@@ -6312,7 +7564,7 @@
(converted into nanoseconds). Fast, but
depending on the architecture, may not be
in sync between CPUs.
- global - Event time stamps are synchronize across
+ global - Event time stamps are synchronized across
CPUs. May be slower than the local clock,
but better for some race conditions.
counter - Simple counting of events (1, 2, ..)
@@ -6334,6 +7586,14 @@
comma-separated list of trace events to enable. See
also Documentation/trace/events.rst
+ To enable modules, use :mod: keyword:
+
+ trace_event=:mod:<module>
+
+ The value before :mod: will only enable specific events
+ that are part of the module. See the above mentioned
+ document for more information.
+
trace_instance=[instance-info]
[FTRACE] Create a ring buffer instance early in boot up.
This will be listed in:
@@ -6354,6 +7614,59 @@
the same thing would happen if it was left off). The irq_handler_entry
event, and all events under the "initcall" system.
+ Flags can be added to the instance to modify its behavior when it is
+ created. The flags are separated by '^'.
+
+ The available flags are:
+
+ traceoff - Have the tracing instance tracing disabled after it is created.
+ traceprintk - Have trace_printk() write into this trace instance
+ (note, "printk" and "trace_printk" can also be used)
+
+ trace_instance=foo^traceoff^traceprintk,sched,irq
+
+ The flags must come before the defined events.
+
+ If memory has been reserved (see memmap for x86), the instance
+ can use that memory:
+
+ memmap=12M$0x284500000 trace_instance=boot_map@0x284500000:12M
+
+ The above will create a "boot_map" instance that uses the physical
+ memory at 0x284500000 that is 12Megs. The per CPU buffers of that
+ instance will be split up accordingly.
+
+ Alternatively, the memory can be reserved by the reserve_mem option:
+
+ reserve_mem=12M:4096:trace trace_instance=boot_map@trace
+
+ This will reserve 12 megabytes at boot up with a 4096 byte alignment
+ and place the ring buffer in this memory. Note that due to KASLR, the
+ memory may not be the same location each time, which will not preserve
+ the buffer content.
+
+ Also note that the layout of the ring buffer data may change between
+ kernel versions where the validator will fail and reset the ring buffer
+ if the layout is not the same as the previous kernel.
+
+ If the ring buffer is used for persistent bootups and has events enabled,
+ it is recommend to disable tracing so that events from a previous boot do not
+ mix with events of the current boot (unless you are debugging a random crash
+ at boot up).
+
+ reserve_mem=12M:4096:trace trace_instance=boot_map^traceoff^traceprintk@trace,sched,irq
+
+ Note, saving the trace buffer across reboots does require that the system
+ is set up to not wipe memory. For instance, CONFIG_RESET_ATTACK_MITIGATION
+ can force a memory reset on boot which will clear any trace that was stored.
+ This is just one of many ways that can clear memory. Make sure your system
+ keeps the content of memory across reboots before relying on this option.
+
+ NB: Both the mapped address and size must be page aligned for the architecture.
+
+ See also Documentation/trace/debugging.rst
+
+
trace_options=[option-list]
[FTRACE] Enable or disable tracer options at boot.
The option-list is a comma delimited list of options
@@ -6371,12 +7684,12 @@
section.
trace_trigger=[trigger-list]
- [FTRACE] Add a event trigger on specific events.
+ [FTRACE] Add an event trigger on specific events.
Set a trigger on top of a specific event, with an optional
filter.
- The format is is "trace_trigger=<event>.<trigger>[ if <filter>],..."
- Where more than one trigger may be specified that are comma deliminated.
+ The format is "trace_trigger=<event>.<trigger>[ if <filter>],..."
+ Where more than one trigger may be specified that are comma delimited.
For example:
@@ -6384,11 +7697,20 @@
The above will enable the "stacktrace" trigger on the "sched_switch"
event but only trigger it if the "prev_state" of the "sched_switch"
- event is "2" (TASK_UNINTERUPTIBLE).
+ event is "2" (TASK_UNINTERRUPTIBLE).
See also "Event triggers" in Documentation/trace/events.rst
+ traceoff_after_boot
+ [FTRACE] Sometimes tracing is used to debug issues
+ during the boot process. Since the trace buffer has a
+ limited amount of storage, it may be prudent to
+ disable tracing after the boot is finished, otherwise
+ the critical information may be overwritten. With this
+ option, the main tracing buffer will be turned off at
+ the end of the boot process.
+
traceoff_on_warning
[FTRACE] enable this option to disable tracing when a
warning is hit. This turns off "tracing_on". Tracing can
@@ -6410,6 +7732,20 @@
See Documentation/admin-guide/mm/transhuge.rst
for more details.
+ transparent_hugepage_shmem= [KNL]
+ Format: [always|within_size|advise|never|deny|force]
+ Can be used to control the hugepage allocation policy for
+ the internal shmem mount.
+ See Documentation/admin-guide/mm/transhuge.rst
+ for more details.
+
+ transparent_hugepage_tmpfs= [KNL]
+ Format: [always|within_size|advise|never]
+ Can be used to control the default hugepage allocation policy
+ for the tmpfs mount.
+ See Documentation/admin-guide/mm/transhuge.rst
+ for more details.
+
trusted.source= [KEYS]
Format: <string>
This parameter identifies the trust source as a backend
@@ -6418,6 +7754,7 @@
- "tpm"
- "tee"
- "caam"
+ - "dcp"
If not specified then it defaults to iterating through
the trust source list starting with TPM and assigns the
first trust source as a backend which is initialized
@@ -6433,6 +7770,31 @@
If not specified, "default" is used. In this case,
the RNG's choice is left to each individual trust source.
+ trusted.dcp_use_otp_key
+ This is intended to be used in combination with
+ trusted.source=dcp and will select the DCP OTP key
+ instead of the DCP UNIQUE key blob encryption.
+
+ trusted.dcp_skip_zk_test
+ This is intended to be used in combination with
+ trusted.source=dcp and will disable the check if the
+ blob key is all zeros. This is helpful for situations where
+ having this key zero'ed is acceptable. E.g. in testing
+ scenarios.
+
+ tsa= [X86] Control mitigation for Transient Scheduler
+ Attacks on AMD CPUs. Search the following in your
+ favourite search engine for more details:
+
+ "Technical guidance for mitigating transient scheduler
+ attacks".
+
+ off - disable the mitigation
+ on - enable the mitigation (default)
+ user - mitigate only user/kernel transitions
+ vm - mitigate only guest/host transitions
+
+
tsc= Disable clocksource stability checks for TSC.
Format: <string>
[x86] reliable: mark tsc clocksource as reliable, this
@@ -6462,7 +7824,7 @@
can be overridden by a later tsc=nowatchdog. A console
message will flag any such suppression or overriding.
- tsc_early_khz= [X86] Skip early TSC calibration and use the given
+ tsc_early_khz= [X86,EARLY] Skip early TSC calibration and use the given
value instead. Useful when the early TSC frequency discovery
procedure is not reliable, such as on overclocked systems
with CPUID.16h support and partial CPUID.15h support.
@@ -6497,7 +7859,7 @@
See Documentation/admin-guide/hw-vuln/tsx_async_abort.rst
for more details.
- tsx_async_abort= [X86,INTEL] Control mitigation for the TSX Async
+ tsx_async_abort= [X86,INTEL,EARLY] Control mitigation for the TSX Async
Abort (TAA) vulnerability.
Similar to Micro-architectural Data Sampling (MDS)
@@ -6560,12 +7922,34 @@
Note that genuine overcurrent events won't be
reported either.
+ unaligned_scalar_speed=
+ [RISCV]
+ Format: {slow | fast | unsupported}
+ Allow skipping scalar unaligned access speed tests. This
+ is useful for testing alternative code paths and to skip
+ the tests in environments where they run too slowly. All
+ CPUs must have the same scalar unaligned access speed.
+
+ unaligned_vector_speed=
+ [RISCV]
+ Format: {slow | fast | unsupported}
+ Allow skipping vector unaligned access speed tests. This
+ is useful for testing alternative code paths and to skip
+ the tests in environments where they run too slowly. All
+ CPUs must have the same vector unaligned access speed.
+
unknown_nmi_panic
[X86] Cause panic on unknown NMI.
+ unwind_debug [X86-64,EARLY]
+ Enable unwinder debug output. This can be
+ useful for debugging certain unwinder error
+ conditions, including corrupt stacks and
+ bad/missing unwinder metadata.
+
usbcore.authorized_default=
[USB] Default USB device authorization:
- (default -1 = authorized except for wireless USB,
+ (default -1 = authorized (same as 1),
0 = not authorized, 1 = authorized, 2 = authorized
if device connected to internal port)
@@ -6663,6 +8047,9 @@
pause after every control message);
o = USB_QUIRK_HUB_SLOW_RESET (Hub needs extra
delay after resetting its port);
+ p = USB_QUIRK_SHORT_SET_ADDRESS_REQ_TIMEOUT
+ (Reduce timeout of the SET_ADDRESS
+ request from 5000 ms to 500 ms);
Example: quirks=0781:5580:bk,0a5c:5834:gij
usbhid.mousepoll=
@@ -6677,6 +8064,9 @@
usb-storage.delay_use=
[UMS] The delay in seconds before a new device is
scanned for Logical Units (default 1).
+ Optionally the delay in milliseconds if the value has
+ suffix with "ms".
+ Example: delay_use=2567ms
usb-storage.quirks=
[UMS] A list of quirks entries to supplement or
@@ -6743,13 +8133,6 @@
16 - SIGBUS faults
Example: user_debug=31
- userpte=
- [X86] Flags controlling user PTE allocations.
-
- nohigh = do not allocate PTE pages in
- HIGHMEM regardless of setting
- of CONFIG_HIGHPTE.
-
vdso= [X86,SH,SPARC]
On X86_32, this is an alias for vdso32=. Otherwise:
@@ -6770,10 +8153,7 @@
Try vdso32=0 if you encounter an error that says:
dl_main: Assertion `(void *) ph->p_vaddr == _rtld_local._dl_sysinfo_dso' failed!
- vector= [IA-64,SMP]
- vector=percpu: enable percpu vector domain
-
- video= [FB] Frame buffer configuration
+ video= [FB,EARLY] Frame buffer configuration
See Documentation/fb/modedb.rst.
video.brightness_switch_enabled= [ACPI]
@@ -6821,13 +8201,16 @@
P Enable page structure init time poisoning
- Disable all of the above options
- vmalloc=nn[KMG] [KNL,BOOT] Forces the vmalloc area to have an exact
- size of <nn>. This can be used to increase the
- minimum size (128MB on x86). It can also be used to
- decrease the size and leave more room for directly
- mapped kernel RAM.
+ vmalloc=nn[KMG] [KNL,BOOT,EARLY] Forces the vmalloc area to have an
+ exact size of <nn>. This can be used to increase
+ the minimum size (128MB on x86, arm32 platforms).
+ It can also be used to decrease the size and leave more room
+ for directly mapped kernel RAM. Note that this parameter does
+ not exist on many other platforms (including arm64, alpha,
+ loongarch, arc, csky, hexagon, microblaze, mips, nios2, openrisc,
+ parisc, m64k, powerpc, riscv, sh, um, xtensa, s390, sparc).
- vmcp_cma=nn[MG] [KNL,S390]
+ vmcp_cma=nn[MG] [KNL,S390,EARLY]
Sets the memory size reserved for contiguous memory
allocations for the vmcp device driver.
@@ -6840,7 +8223,17 @@
vmpoff= [KNL,S390] Perform z/VM CP command after power off.
Format: <command>
- vsyscall= [X86-64]
+ vmscape= [X86] Controls mitigation for VMscape attacks.
+ VMscape attacks can leak information from a userspace
+ hypervisor to a guest via speculative side-channels.
+
+ off - disable the mitigation
+ ibpb - use Indirect Branch Prediction Barrier
+ (IBPB) mitigation (default)
+ force - force vulnerability detection even on
+ unaffected processors
+
+ vsyscall= [X86-64,EARLY]
Controls the behavior of vsyscalls (i.e. calls to
fixed addresses of 0xffffffffff600x00 from legacy
code). Most statically-linked binaries and older
@@ -6867,7 +8260,7 @@
vt.cur_default= [VT] Default cursor shape.
Format: 0xCCBBAA, where AA, BB, and CC are the same as
the parameters of the <Esc>[?A;B;Cc escape sequence;
- see VGA-softcursor.txt. Default: 2 = underline.
+ see vga-softcursor.rst. Default: 2 = underline.
vt.default_blu= [VT]
Format: <blue0>,<blue1>,<blue2>,...,<blue15>
@@ -6922,6 +8315,13 @@
disables both lockup detectors. Default is 10
seconds.
+ workqueue.unbound_cpus=
+ [KNL,SMP] Specify to constrain one or some CPUs
+ to use in unbound workqueues.
+ Format: <cpu-list>
+ By default, all online CPUs are available for
+ unbound workqueues.
+
workqueue.watchdog_thresh=
If CONFIG_WQ_WATCHDOG is configured, workqueue can
warn stall conditions and dump internal state to
@@ -6931,14 +8331,33 @@
it can be updated at runtime by writing to the
corresponding sysfs file.
- workqueue.disable_numa
- By default, all work items queued to unbound
- workqueues are affine to the NUMA nodes they're
- issued on, which results in better behavior in
- general. If NUMA affinity needs to be disabled for
- whatever reason, this option can be used. Note
- that this also can be controlled per-workqueue for
- workqueues visible under /sys/bus/workqueue/.
+ workqueue.panic_on_stall=<uint>
+ Panic when workqueue stall is detected by
+ CONFIG_WQ_WATCHDOG. It sets the number times of the
+ stall to trigger panic.
+
+ The default is 0, which disables the panic on stall.
+
+ workqueue.cpu_intensive_thresh_us=
+ Per-cpu work items which run for longer than this
+ threshold are automatically considered CPU intensive
+ and excluded from concurrency management to prevent
+ them from noticeably delaying other per-cpu work
+ items. Default is 10000 (10ms).
+
+ If CONFIG_WQ_CPU_INTENSIVE_REPORT is set, the kernel
+ will report the work functions which violate this
+ threshold repeatedly. They are likely good
+ candidates for using WQ_UNBOUND workqueues instead.
+
+ workqueue.cpu_intensive_warning_thresh=<uint>
+ If CONFIG_WQ_CPU_INTENSIVE_REPORT is set, the kernel
+ will report the work functions which violate the
+ intensive_threshold_us repeatedly. In order to prevent
+ spurious warnings, start printing only after a work
+ function has violated this threshold number of times.
+
+ The default is 4 times. 0 disables the warning.
workqueue.power_efficient
Per-cpu workqueues are generally preferred because
@@ -6955,6 +8374,18 @@
The default value of this parameter is determined by
the config option CONFIG_WQ_POWER_EFFICIENT_DEFAULT.
+ workqueue.default_affinity_scope=
+ Select the default affinity scope to use for unbound
+ workqueues. Can be one of "cpu", "smt", "cache",
+ "numa" and "system". Default is "cache". For more
+ information, see the Affinity Scopes section in
+ Documentation/core-api/workqueue.rst.
+
+ This can be changed after boot by writing to the
+ matching /sys/module/workqueue/parameters file. All
+ workqueues with the "default" affinity scope will be
+ updated accordingly.
+
workqueue.debug_force_rr_cpu
Workqueue used to implicitly guarantee that work
items queued without explicit CPU specified are put
@@ -6966,13 +8397,13 @@
When enabled, memory and cache locality will be
impacted.
- writecombine= [LOONGARCH] Control the MAT (Memory Access Type) of
- ioremap_wc().
+ writecombine= [LOONGARCH,EARLY] Control the MAT (Memory Access
+ Type) of ioremap_wc().
on - Enable writecombine, use WUC for ioremap_wc()
off - Disable writecombine, use SUC for ioremap_wc()
- x2apic_phys [X86-64,APIC] Use x2apic physical mode instead of
+ x2apic_phys [X86-64,APIC,EARLY] Use x2apic physical mode instead of
default x2apic cluster mode on platforms
supporting x2apic.
@@ -6983,7 +8414,7 @@
save/restore/migration must be enabled to handle larger
domains.
- xen_emul_unplug= [HW,X86,XEN]
+ xen_emul_unplug= [HW,X86,XEN,EARLY]
Unplug Xen emulated devices
Format: [unplug0,][unplug1]
ide-disks -- unplug primary master IDE devices
@@ -6995,21 +8426,22 @@
the unplug protocol
never -- do not unplug even if version check succeeds
- xen_legacy_crash [X86,XEN]
+ xen_legacy_crash [X86,XEN,EARLY]
Crash from Xen panic notifier, without executing late
panic() code such as dumping handler.
- xen_msr_safe= [X86,XEN]
+ xen_mc_debug [X86,XEN,EARLY]
+ Enable multicall debugging when running as a Xen PV guest.
+ Enabling this feature will reduce performance a little
+ bit, so it should only be enabled for obtaining extended
+ debug data in case of multicall errors.
+
+ xen_msr_safe= [X86,XEN,EARLY]
Format: <bool>
Select whether to always use non-faulting (safe) MSR
access functions when running as Xen PV guest. The
default value is controlled by CONFIG_XEN_PV_MSR_SAFE.
- xen_nopvspin [X86,XEN]
- Disables the qspinlock slowpath using Xen PV optimizations.
- This parameter is obsoleted by "nopvspin" parameter, which
- has equivalent effect for XEN platform.
-
xen_nopv [X86]
Disables the PV optimizations forcing the HVM guest to
run as generic HVM guest with no PV drivers.
@@ -7017,7 +8449,7 @@
has equivalent effect for XEN platform.
xen_no_vector_callback
- [KNL,X86,XEN] Disable the vector callback for Xen
+ [KNL,X86,XEN,EARLY] Disable the vector callback for Xen
event channel interrupts.
xen_scrub_pages= [XEN]
@@ -7026,7 +8458,7 @@
with /sys/devices/system/xen_memory/xen_memory0/scrub_pages.
Default value controlled with CONFIG_XEN_SCRUB_PAGES_DEFAULT.
- xen_timer_slop= [X86-64,XEN]
+ xen_timer_slop= [X86-64,XEN,EARLY]
Set the timer slop (in nanoseconds) for the virtual Xen
timers (default is 100000). This adjusts the minimum
delta of virtualized Xen timers, where lower values
@@ -7079,7 +8511,7 @@
host controller quirks. Meaning of each bit can be
consulted in header drivers/usb/host/xhci.h.
- xmon [PPC]
+ xmon [PPC,EARLY]
Format: { early | on | rw | ro | off }
Controls if xmon debugger is enabled. Default is off.
Passing only "xmon" is equivalent to "xmon=early".
@@ -7097,4 +8529,3 @@
memory, and other data can't be written using
xmon commands.
off xmon is disabled.
-
diff --git a/Documentation/admin-guide/kernel-per-CPU-kthreads.rst b/Documentation/admin-guide/kernel-per-CPU-kthreads.rst
index 993c2a05f5ee..ee9a6c94f383 100644
--- a/Documentation/admin-guide/kernel-per-CPU-kthreads.rst
+++ b/Documentation/admin-guide/kernel-per-CPU-kthreads.rst
@@ -243,13 +243,9 @@ To reduce its OS jitter, do any of the following:
3. Do any of the following needed to avoid jitter that your
application cannot tolerate:
- a. Build your kernel with CONFIG_SLUB=y rather than
- CONFIG_SLAB=y, thus avoiding the slab allocator's periodic
- use of each CPU's workqueues to run its cache_reap()
- function.
- b. Avoid using oprofile, thus avoiding OS jitter from
+ a. Avoid using oprofile, thus avoiding OS jitter from
wq_sync_buffer().
- c. Limit your CPU frequency so that a CPU-frequency
+ b. Limit your CPU frequency so that a CPU-frequency
governor is not required, possibly enlisting the aid of
special heatsinks or other cooling technologies. If done
correctly, and if you CPU architecture permits, you should
@@ -259,7 +255,7 @@ To reduce its OS jitter, do any of the following:
WARNING: Please check your CPU specifications to
make sure that this is safe on your particular system.
- d. As of v3.18, Christoph Lameter's on-demand vmstat workers
+ c. As of v3.18, Christoph Lameter's on-demand vmstat workers
commit prevents OS jitter due to vmstat_update() on
CONFIG_SMP=y systems. Before v3.18, is not possible
to entirely get rid of the OS jitter, but you can
@@ -274,7 +270,7 @@ To reduce its OS jitter, do any of the following:
(based on an earlier one from Gilad Ben-Yossef) that
reduces or even eliminates vmstat overhead for some
workloads at https://lore.kernel.org/r/00000140e9dfd6bd-40db3d4f-c1be-434f-8132-7820f81bb586-000000@email.amazonses.com.
- e. If running on high-end powerpc servers, build with
+ d. If running on high-end powerpc servers, build with
CONFIG_PPC_RTAS_DAEMON=n. This prevents the RTAS
daemon from running on each CPU every second or so.
(This will require editing Kconfig files and will defeat
@@ -282,12 +278,7 @@ To reduce its OS jitter, do any of the following:
due to the rtas_event_scan() function.
WARNING: Please check your CPU specifications to
make sure that this is safe on your particular system.
- f. If running on Cell Processor, build your kernel with
- CBE_CPUFREQ_SPU_GOVERNOR=n to avoid OS jitter from
- spu_gov_work().
- WARNING: Please check your CPU specifications to
- make sure that this is safe on your particular system.
- g. If running on PowerMAC, build your kernel with
+ e. If running on PowerMAC, build your kernel with
CONFIG_PMAC_RACKMETER=n to disable the CPU-meter,
avoiding OS jitter from rackmeter_do_timer().
@@ -319,7 +310,7 @@ To reduce its OS jitter, do at least one of the following:
to do.
Name:
- rcuop/%d and rcuos/%d
+ rcuop/%d, rcuos/%d, and rcuog/%d
Purpose:
Offload RCU callbacks from the corresponding CPU.
diff --git a/Documentation/admin-guide/laptops/alienware-wmi.rst b/Documentation/admin-guide/laptops/alienware-wmi.rst
new file mode 100644
index 000000000000..27a32a8057da
--- /dev/null
+++ b/Documentation/admin-guide/laptops/alienware-wmi.rst
@@ -0,0 +1,127 @@
+.. SPDX-License-Identifier: GPL-2.0-or-later
+
+====================
+Alienware WMI Driver
+====================
+
+Kurt Borja <kuurtb@gmail.com>
+
+This is a driver for the "WMAX" WMI device, which is found in most Dell gaming
+laptops and controls various special features.
+
+Before the launch of M-Series laptops (~2018), the "WMAX" device controlled
+basic RGB lighting, deep sleep mode, HDMI mode and amplifier status.
+
+Later, this device was completely repurpused. Now it mostly deals with thermal
+profiles, sensor monitoring and overclocking. This interface is named "AWCC" and
+is known to be used by the AWCC OEM application to control these features.
+
+The alienware-wmi driver controls both interfaces.
+
+AWCC Interface
+==============
+
+WMI device documentation: Documentation/wmi/devices/alienware-wmi.rst
+
+Supported devices
+-----------------
+
+- Alienware M-Series laptops
+- Alienware X-Series laptops
+- Alienware Aurora Desktops
+- Dell G-Series laptops
+
+If you believe your device supports the AWCC interface and you don't have any of
+the features described in this document, try the following alienware-wmi module
+parameters:
+
+- ``force_platform_profile=1``: Forces probing for platform profile support
+- ``force_hwmon=1``: Forces probing for HWMON support
+
+If the module loads successfully with these parameters, consider submitting a
+patch adding your model to the ``awcc_dmi_table`` located in
+``drivers/platform/x86/dell/alienware-wmi-wmax.c`` or contacting the maintainer
+for further guidance.
+
+Status
+------
+
+The following features are currently supported:
+
+- :ref:`Platform Profile <platform-profile>`:
+
+ - Thermal profile control
+
+ - G-Mode toggling
+
+- :ref:`HWMON <hwmon>`:
+
+ - Sensor monitoring
+
+ - Manual fan control
+
+.. _platform-profile:
+
+Platform Profile
+----------------
+
+The AWCC interface exposes various firmware defined thermal profiles. These are
+exposed to user-space through the Platform Profile class interface. Refer to
+:ref:`sysfs-class-platform-profile <abi_file_testing_sysfs_class_platform_profile>`
+for more information.
+
+The name of the platform-profile class device exported by this driver is
+"alienware-wmi" and it's path can be found with:
+
+::
+
+ grep -l "alienware-wmi" /sys/class/platform-profile/platform-profile-*/name | sed 's|/[^/]*$||'
+
+If the device supports G-Mode, it is also toggled when selecting the
+``performance`` profile.
+
+.. note::
+ You may set the ``force_gmode`` module parameter to always try to toggle this
+ feature, without checking if your model supports it.
+
+.. _hwmon:
+
+HWMON
+-----
+
+The AWCC interface also supports sensor monitoring and manual fan control. Both
+of these features are exposed to user-space through the HWMON interface.
+
+The name of the hwmon class device exported by this driver is "alienware_wmi"
+and it's path can be found with:
+
+::
+
+ grep -l "alienware_wmi" /sys/class/hwmon/hwmon*/name | sed 's|/[^/]*$||'
+
+Sensor monitoring is done through the standard HWMON interface. Refer to
+:ref:`sysfs-class-hwmon <abi_file_testing_sysfs_class_hwmon>` for more
+information.
+
+Manual fan control on the other hand, is not exposed directly by the AWCC
+interface. Instead it let's us control a fan `boost` value. This `boost` value
+has the following aproximate behavior over the fan pwm:
+
+::
+
+ pwm = pwm_base + (fan_boost / 255) * (pwm_max - pwm_base)
+
+Due to the above behavior, the fan `boost` control is exposed to user-space
+through the following, custom hwmon sysfs attribute:
+
+=============================== ======= =======================================
+Name Perm Description
+=============================== ======= =======================================
+fan[1-4]_boost RW Fan boost value.
+
+ Integer value between 0 and 255
+=============================== ======= =======================================
+
+.. note::
+ In some devices, manual fan control only works reliably if the ``custom``
+ platform profile is selected.
diff --git a/Documentation/admin-guide/laptops/index.rst b/Documentation/admin-guide/laptops/index.rst
index cd9a1c2695fd..6432c251dc95 100644
--- a/Documentation/admin-guide/laptops/index.rst
+++ b/Documentation/admin-guide/laptops/index.rst
@@ -7,11 +7,14 @@ Laptop Drivers
.. toctree::
:maxdepth: 1
+ alienware-wmi
asus-laptop
disk-shock-protection
laptop-mode
lg-laptop
+ samsung-galaxybook
sony-laptop
sonypi
thinkpad-acpi
toshiba_haps
+ uniwill-laptop
diff --git a/Documentation/admin-guide/laptops/laptop-mode.rst b/Documentation/admin-guide/laptops/laptop-mode.rst
index b61cc601d298..66eb9cd918b5 100644
--- a/Documentation/admin-guide/laptops/laptop-mode.rst
+++ b/Documentation/admin-guide/laptops/laptop-mode.rst
@@ -61,7 +61,7 @@ Caveats
Check your drive's rating, and don't wear down your drive's lifetime if you
don't need to.
-* If you mount some of your ext3/reiserfs filesystems with the -n option, then
+* If you mount some of your ext3 filesystems with the -n option, then
the control script will not be able to remount them correctly. You must set
DO_REMOUNTS=0 in the control script, otherwise it will remount them with the
wrong options -- or it will fail because it cannot write to /etc/mtab.
@@ -96,7 +96,7 @@ control script increases dirty_expire_centisecs and dirty_writeback_centisecs in
dirtied are not forced to be written to disk as often. The control script also
changes the dirty background ratio, so that background writeback of dirty pages
is not done anymore. Combined with a higher commit value (also 10 minutes) for
-ext3 or ReiserFS filesystems (also done automatically by the control script),
+ext3 filesystem (also done automatically by the control script),
this results in concentration of disk activity in a small time interval which
occurs only once every 10 minutes, or whenever the disk is forced to spin up by
a cache miss. The disk can then be spun down in the periods of inactivity.
@@ -587,7 +587,7 @@ Control script::
FST=$(deduce_fstype $MP)
fi
case "$FST" in
- "ext3"|"reiserfs")
+ "ext3")
PARSEDOPTS="$(parse_mount_opts commit "$OPTS")"
mount $DEV -t $FST $MP -o remount,$PARSEDOPTS,commit=$MAX_AGE$NOATIME_OPT
;;
@@ -647,7 +647,7 @@ Control script::
FST=$(deduce_fstype $MP)
fi
case "$FST" in
- "ext3"|"reiserfs")
+ "ext3")
PARSEDOPTS="$(parse_mount_opts_wfstab $DEV commit $OPTS)"
PARSEDOPTS="$(parse_yesno_opts_wfstab $DEV atime atime $PARSEDOPTS)"
mount $DEV -t $FST $MP -o remount,$PARSEDOPTS
diff --git a/Documentation/admin-guide/laptops/lg-laptop.rst b/Documentation/admin-guide/laptops/lg-laptop.rst
index 67fd6932cef4..c4dd534f91ed 100644
--- a/Documentation/admin-guide/laptops/lg-laptop.rst
+++ b/Documentation/admin-guide/laptops/lg-laptop.rst
@@ -48,8 +48,8 @@ This value is reset to 100 when the kernel boots.
Fan mode
--------
-Writing 1/0 to /sys/devices/platform/lg-laptop/fan_mode disables/enables
-the fan silent mode.
+Writing 0/1/2 to /sys/devices/platform/lg-laptop/fan_mode sets fan mode to
+Optimal/Silent/Performance respectively.
USB charge
diff --git a/Documentation/admin-guide/laptops/samsung-galaxybook.rst b/Documentation/admin-guide/laptops/samsung-galaxybook.rst
new file mode 100644
index 000000000000..752b8f1a4a74
--- /dev/null
+++ b/Documentation/admin-guide/laptops/samsung-galaxybook.rst
@@ -0,0 +1,174 @@
+.. SPDX-License-Identifier: GPL-2.0-or-later
+
+==========================
+Samsung Galaxy Book Driver
+==========================
+
+Joshua Grisham <josh@joshuagrisham.com>
+
+This is a Linux x86 platform driver for Samsung Galaxy Book series notebook
+devices which utilizes Samsung's ``SCAI`` ACPI device in order to control
+extra features and receive various notifications.
+
+Supported devices
+=================
+
+Any device with one of the supported ACPI device IDs should be supported. This
+covers most of the "Samsung Galaxy Book" series notebooks that are currently
+available as of this writing, and could include other Samsung notebook devices
+as well.
+
+Status
+======
+
+The following features are currently supported:
+
+- :ref:`Keyboard backlight <keyboard-backlight>` control
+- :ref:`Performance mode <performance-mode>` control implemented using the
+ platform profile interface
+- :ref:`Battery charge control end threshold
+ <battery-charge-control-end-threshold>` (stop charging battery at given
+ percentage value) implemented as a battery hook
+- :ref:`Firmware Attributes <firmware-attributes>` to allow control of various
+ device settings
+- :ref:`Handling of Fn hotkeys <keyboard-hotkey-actions>` for various actions
+- :ref:`Handling of ACPI notifications and hotkeys
+ <acpi-notifications-and-hotkey-actions>`
+
+Because different models of these devices can vary in their features, there is
+logic built within the driver which attempts to test each implemented feature
+for a valid response before enabling its support (registering additional devices
+or extensions, adding sysfs attributes, etc). Therefore, it can be important to
+note that not all features may be supported for your particular device.
+
+The following features might be possible to implement but will require
+additional investigation and are therefore not supported at this time:
+
+- "Dolby Atmos" mode for the speakers
+- "Outdoor Mode" for increasing screen brightness on models with ``SAM0427``
+- "Silent Mode" on models with ``SAM0427``
+
+.. _keyboard-backlight:
+
+Keyboard backlight
+==================
+
+A new LED class named ``samsung-galaxybook::kbd_backlight`` is created which
+will then expose the device using the standard sysfs-based LED interface at
+``/sys/class/leds/samsung-galaxybook::kbd_backlight``. Brightness can be
+controlled by writing the desired value to the ``brightness`` sysfs attribute or
+with any other desired userspace utility.
+
+.. note::
+ Most of these devices have an ambient light sensor which also turns
+ off the keyboard backlight under well-lit conditions. This behavior does not
+ seem possible to control at this time, but can be good to be aware of.
+
+.. _performance-mode:
+
+Performance mode
+================
+
+This driver implements the
+Documentation/userspace-api/sysfs-platform_profile.rst interface for working
+with the "performance mode" function of the Samsung ACPI device.
+
+Mapping of each Samsung "performance mode" to its respective platform profile is
+performed dynamically by the driver, as not all models support all of the same
+performance modes. Your device might have one or more of the following mappings:
+
+- "Silent" maps to ``low-power``
+- "Quiet" maps to ``quiet``
+- "Optimized" maps to ``balanced``
+- "High performance" maps to ``performance``
+
+The result of the mapping can be printed in the kernel log when the module is
+loaded. Supported profiles can also be retrieved from
+``/sys/firmware/acpi/platform_profile_choices``, while
+``/sys/firmware/acpi/platform_profile`` can be used to read or write the
+currently selected profile.
+
+The ``balanced`` platform profile will be set during module load if no profile
+has been previously set.
+
+.. _battery-charge-control-end-threshold:
+
+Battery charge control end threshold
+====================================
+
+This platform driver will add the ability to set the battery's charge control
+end threshold, but does not have the ability to set a start threshold.
+
+This feature is typically called "Battery Saver" by the various Samsung
+applications in Windows, but in Linux we have implemented the standardized
+"charge control threshold" sysfs interface on the battery device to allow for
+controlling this functionality from the userspace.
+
+The sysfs attribute
+``/sys/class/power_supply/BAT1/charge_control_end_threshold`` can be used to
+read or set the desired charge end threshold.
+
+If you wish to maintain interoperability with the Samsung Settings application
+in Windows, then you should set the value to 100 to represent "off", or enable
+the feature using only one of the following values: 50, 60, 70, 80, or 90.
+Otherwise, the driver will accept any value between 1 and 100 as the percentage
+that you wish the battery to stop charging at.
+
+.. note::
+ Some devices have been observed as automatically "turning off" the charge
+ control end threshold if an input value of less than 30 is given.
+
+.. _firmware-attributes:
+
+Firmware Attributes
+===================
+
+The following enumeration-typed firmware attributes are set up by this driver
+and should be accessible under
+``/sys/class/firmware-attributes/samsung-galaxybook/attributes/`` if your device
+supports them:
+
+- ``power_on_lid_open`` (device should power on when the lid is opened)
+- ``usb_charging`` (USB ports can deliver power to connected devices even when
+ the device is powered off or in a low sleep state)
+- ``block_recording`` (blocks access to camera and microphone)
+
+All of these attributes are simple boolean-like enumeration values which use 0
+to represent "off" and 1 to represent "on". Use the ``current_value`` attribute
+to get or change the setting on the device.
+
+Note that when ``block_recording`` is updated, the input device "Samsung Galaxy
+Book Lens Cover" will receive a ``SW_CAMERA_LENS_COVER`` switch event which
+reflects the current state.
+
+.. _keyboard-hotkey-actions:
+
+Keyboard hotkey actions (i8042 filter)
+======================================
+
+The i8042 filter will swallow the keyboard events for the Fn+F9 hotkey (Multi-
+level keyboard backlight toggle) and Fn+F10 hotkey (Block recording toggle)
+and instead execute their actions within the driver itself.
+
+Fn+F9 will cycle through the brightness levels of the keyboard backlight. A
+notification will be sent using ``led_classdev_notify_brightness_hw_changed``
+so that the userspace can be aware of the change. This mimics the behavior of
+other existing devices where the brightness level is cycled internally by the
+embedded controller and then reported via a notification.
+
+Fn+F10 will toggle the value of the "block recording" setting, which blocks
+or allows usage of the built-in camera and microphone (and generates the same
+Lens Cover switch event mentioned above).
+
+.. _acpi-notifications-and-hotkey-actions:
+
+ACPI notifications and hotkey actions
+=====================================
+
+ACPI notifications will generate ACPI netlink events under the device class
+``samsung-galaxybook`` and bus ID matching the Samsung ACPI device ID found on
+your device. The events can be received using userspace tools such as
+``acpi_listen`` and ``acpid``.
+
+The Fn+F11 Performance mode hotkey will be handled by the driver; each keypress
+will cycle to the next available platform profile.
diff --git a/Documentation/admin-guide/laptops/sonypi.rst b/Documentation/admin-guide/laptops/sonypi.rst
index 190da1234314..7541f56e0007 100644
--- a/Documentation/admin-guide/laptops/sonypi.rst
+++ b/Documentation/admin-guide/laptops/sonypi.rst
@@ -25,7 +25,7 @@ generate, like:
(when available)
Those events (see linux/sonypi.h) can be polled using the character device node
-/dev/sonypi (major 10, minor auto allocated or specified as a option).
+/dev/sonypi (major 10, minor auto allocated or specified as an option).
A simple daemon which translates the jogdial movements into mouse wheel events
can be downloaded at: <http://popies.net/sonypi/>
diff --git a/Documentation/admin-guide/laptops/thinkpad-acpi.rst b/Documentation/admin-guide/laptops/thinkpad-acpi.rst
index e27a1c3f634e..4ab0fef7d440 100644
--- a/Documentation/admin-guide/laptops/thinkpad-acpi.rst
+++ b/Documentation/admin-guide/laptops/thinkpad-acpi.rst
@@ -53,6 +53,7 @@ detailed description):
- Lap mode sensor
- Setting keyboard language
- WWAN Antenna type
+ - Auxmac
A compatibility table by model and feature is maintained on the web
site, http://ibm-acpi.sf.net/. I appreciate any success or failure
@@ -443,7 +444,11 @@ event code Key Notes
0x1008 0x07 FN+F8 IBM: toggle screen expand
Lenovo: configure UltraNav,
- or toggle screen expand
+ or toggle screen expand.
+ On 2024 platforms replaced by
+ 0x131f (see below) and on newer
+ platforms (2025 +) keycode is
+ replaced by 0x1401 (see below).
0x1009 0x08 FN+F9 -
@@ -503,6 +508,11 @@ event code Key Notes
0x1019 0x18 unknown
+0x131f ... FN+F8 Platform Mode change (2024 systems).
+ Implemented in driver.
+
+0x1401 ... FN+F8 Platform Mode change (2025 + systems).
+ Implemented in driver.
... ... ...
0x1020 0x1F unknown
@@ -1511,6 +1521,25 @@ Currently 2 antenna types are supported as mentioned below:
The property is read-only. If the platform doesn't have support the sysfs
class is not created.
+Auxmac
+------
+
+sysfs: auxmac
+
+Some newer Thinkpads have a feature called MAC Address Pass-through. This
+feature is implemented by the system firmware to provide a system unique MAC,
+that can override a dock or USB ethernet dongle MAC, when connected to a
+network. This property enables user-space to easily determine the MAC address
+if the feature is enabled.
+
+The values of this auxiliary MAC are:
+
+ cat /sys/devices/platform/thinkpad_acpi/auxmac
+
+If the feature is disabled, the value will be 'disabled'.
+
+This property is read-only.
+
Adaptive keyboard
-----------------
diff --git a/Documentation/admin-guide/laptops/uniwill-laptop.rst b/Documentation/admin-guide/laptops/uniwill-laptop.rst
new file mode 100644
index 000000000000..a16baf15516b
--- /dev/null
+++ b/Documentation/admin-guide/laptops/uniwill-laptop.rst
@@ -0,0 +1,60 @@
+.. SPDX-License-Identifier: GPL-2.0+
+
+Uniwill laptop extra features
+=============================
+
+On laptops manufactured by Uniwill (either directly or as ODM), the ``uniwill-laptop`` driver
+handles various platform-specific features.
+
+Module Loading
+--------------
+
+The ``uniwill-laptop`` driver relies on a DMI table to automatically load on supported devices.
+When using the ``force`` module parameter, this DMI check will be omitted, allowing the driver
+to be loaded on unsupported devices for testing purposes.
+
+Hotkeys
+-------
+
+Usually the FN keys work without a special driver. However as soon as the ``uniwill-laptop`` driver
+is loaded, the FN keys need to be handled manually. This is done automatically by the driver itself.
+
+Keyboard settings
+-----------------
+
+The ``uniwill-laptop`` driver allows the user to enable/disable:
+
+ - the FN and super key lock functionality of the integrated keyboard
+ - the touchpad toggle functionality of the integrated touchpad
+
+See Documentation/ABI/testing/sysfs-driver-uniwill-laptop for details.
+
+Hwmon interface
+---------------
+
+The ``uniwill-laptop`` driver supports reading of the CPU and GPU temperature and supports up to
+two fans. Userspace applications can access sensor readings over the hwmon sysfs interface.
+
+Platform profile
+----------------
+
+Support for changing the platform performance mode is currently not implemented.
+
+Battery Charging Control
+------------------------
+
+The ``uniwill-laptop`` driver supports controlling the battery charge limit. This happens over
+the standard ``charge_control_end_threshold`` power supply sysfs attribute. All values
+between 1 and 100 percent are supported.
+
+Additionally the driver signals the presence of battery charging issues through the standard
+``health`` power supply sysfs attribute.
+
+Lightbar
+--------
+
+The ``uniwill-laptop`` driver exposes the lightbar found on some models as a standard multicolor
+LED class device. The default name of this LED class device is ``uniwill:multicolor:status``.
+
+See Documentation/ABI/testing/sysfs-driver-uniwill-laptop for details on how to control the various
+animation modes of the lightbar.
diff --git a/Documentation/admin-guide/md.rst b/Documentation/admin-guide/md.rst
index 4ff2cc291d18..dc7eab191caa 100644
--- a/Documentation/admin-guide/md.rst
+++ b/Documentation/admin-guide/md.rst
@@ -238,6 +238,16 @@ All md devices contain:
the number of devices in a raid4/5/6, or to support external
metadata formats which mandate such clipping.
+ logical_block_size
+ Configure the array's logical block size in bytes. This attribute
+ is only supported for 1.x meta. Write the value before starting
+ array. The final array LBS uses the maximum between this
+ configuration and LBS of all combined devices. Note that
+ LBS cannot exceed PAGE_SIZE before RAID supports folio.
+ WARNING: Arrays created on new kernel cannot be assembled at old
+ kernel due to padding check, Set module parameter 'check_new_feature'
+ to false to bypass, but data loss may occur.
+
reshape_position
This is either ``none`` or a sector number within the devices of
the array where ``reshape`` is up to. If this is set, the three
@@ -347,6 +357,54 @@ All md devices contain:
active-idle
like active, but no writes have been seen for a while (safe_mode_delay).
+ consistency_policy
+ This indicates how the array maintains consistency in case of unexpected
+ shutdown. It can be:
+
+ none
+ Array has no redundancy information, e.g. raid0, linear.
+
+ resync
+ Full resync is performed and all redundancy is regenerated when the
+ array is started after unclean shutdown.
+
+ bitmap
+ Resync assisted by a write-intent bitmap.
+
+ journal
+ For raid4/5/6, journal device is used to log transactions and replay
+ after unclean shutdown.
+
+ ppl
+ For raid5 only, Partial Parity Log is used to close the write hole and
+ eliminate resync.
+
+ The accepted values when writing to this file are ``ppl`` and ``resync``,
+ used to enable and disable PPL.
+
+ uuid
+ This indicates the UUID of the array in the following format:
+ xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
+
+ bitmap_type
+ [RW] When read, this file will display the current and available
+ bitmap for this array. The currently active bitmap will be enclosed
+ in [] brackets. Writing an bitmap name or ID to this file will switch
+ control of this array to that new bitmap. Note that writing a new
+ bitmap for created array is forbidden.
+
+ none
+ No bitmap
+ bitmap
+ The default internal bitmap
+ llbitmap
+ The lockless internal bitmap
+
+If bitmap_type is not none, then additional bitmap attributes bitmap/xxx or
+llbitmap/xxx will be created after md device KOBJ_CHANGE event.
+
+If bitmap_type is bitmap, then the md device will also contain:
+
bitmap/location
This indicates where the write-intent bitmap for the array is
stored.
@@ -401,35 +459,23 @@ All md devices contain:
once the array becomes non-degraded, and this fact has been
recorded in the metadata.
- consistency_policy
- This indicates how the array maintains consistency in case of unexpected
- shutdown. It can be:
-
- none
- Array has no redundancy information, e.g. raid0, linear.
-
- resync
- Full resync is performed and all redundancy is regenerated when the
- array is started after unclean shutdown.
-
- bitmap
- Resync assisted by a write-intent bitmap.
+If bitmap_type is llbitmap, then the md device will also contain:
- journal
- For raid4/5/6, journal device is used to log transactions and replay
- after unclean shutdown.
+ llbitmap/bits
+ This is read-only, show status of bitmap bits, the number of each
+ value.
- ppl
- For raid5 only, Partial Parity Log is used to close the write hole and
- eliminate resync.
-
- The accepted values when writing to this file are ``ppl`` and ``resync``,
- used to enable and disable PPL.
+ llbitmap/metadata
+ This is read-only, show bitmap metadata, include chunksize, chunkshift,
+ chunks, offset and daemon_sleep.
- uuid
- This indicates the UUID of the array in the following format:
- xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
+ llbitmap/daemon_sleep
+ This is read-write, time in seconds that daemon function will be
+ triggered to clear dirty bits.
+ llbitmap/barrier_idle
+ This is read-write, time in seconds that page barrier will be idled,
+ means dirty bits in the page will be cleared.
As component devices are added to an md array, they appear in the ``md``
directory as new directories named::
@@ -758,7 +804,7 @@ These currently include:
journal_mode (currently raid5 only)
The cache mode for raid5. raid5 could include an extra disk for
- caching. The mode can be "write-throuth" and "write-back". The
+ caching. The mode can be "write-through" or "write-back". The
default is "write-through".
ppl_write_hint
diff --git a/Documentation/admin-guide/media/building.rst b/Documentation/admin-guide/media/building.rst
index a06473429916..7a413ba07f93 100644
--- a/Documentation/admin-guide/media/building.rst
+++ b/Documentation/admin-guide/media/building.rst
@@ -15,7 +15,7 @@ Please notice, however, that, if:
you should use the main media development tree ``master`` branch:
- https://git.linuxtv.org/media_tree.git/
+ https://git.linuxtv.org/media.git/
In this case, you may find some useful information at the
`LinuxTv wiki pages <https://linuxtv.org/wiki>`_:
diff --git a/Documentation/admin-guide/media/c3-isp.dot b/Documentation/admin-guide/media/c3-isp.dot
new file mode 100644
index 000000000000..42dc931ee84a
--- /dev/null
+++ b/Documentation/admin-guide/media/c3-isp.dot
@@ -0,0 +1,26 @@
+digraph board {
+ rankdir=TB
+ n00000001 [label="{{<port0> 0 | <port1> 1} | c3-isp-core\n/dev/v4l-subdev0 | {<port2> 2 | <port3> 3 | <port4> 4 | <port5> 5}}", shape=Mrecord, style=filled, fillcolor=green]
+ n00000001:port3 -> n00000008:port0
+ n00000001:port4 -> n0000000b:port0
+ n00000001:port5 -> n0000000e:port0
+ n00000001:port2 -> n00000027
+ n00000008 [label="{{<port0> 0} | c3-isp-resizer0\n/dev/v4l-subdev1 | {<port1> 1}}", shape=Mrecord, style=filled, fillcolor=green]
+ n00000008:port1 -> n00000016 [style=bold]
+ n0000000b [label="{{<port0> 0} | c3-isp-resizer1\n/dev/v4l-subdev2 | {<port1> 1}}", shape=Mrecord, style=filled, fillcolor=green]
+ n0000000b:port1 -> n0000001a [style=bold]
+ n0000000e [label="{{<port0> 0} | c3-isp-resizer2\n/dev/v4l-subdev3 | {<port1> 1}}", shape=Mrecord, style=filled, fillcolor=green]
+ n0000000e:port1 -> n00000023 [style=bold]
+ n00000011 [label="{{<port0> 0} | c3-mipi-adapter\n/dev/v4l-subdev4 | {<port1> 1}}", shape=Mrecord, style=filled, fillcolor=green]
+ n00000011:port1 -> n00000001:port0 [style=bold]
+ n00000016 [label="c3-isp-cap0\n/dev/video0", shape=box, style=filled, fillcolor=yellow]
+ n0000001a [label="c3-isp-cap1\n/dev/video1", shape=box, style=filled, fillcolor=yellow]
+ n0000001e [label="{{<port0> 0} | c3-mipi-csi2\n/dev/v4l-subdev5 | {<port1> 1}}", shape=Mrecord, style=filled, fillcolor=green]
+ n0000001e:port1 -> n00000011:port0 [style=bold]
+ n00000023 [label="c3-isp-cap2\n/dev/video2", shape=box, style=filled, fillcolor=yellow]
+ n00000027 [label="c3-isp-stats\n/dev/video3", shape=box, style=filled, fillcolor=yellow]
+ n0000002b [label="c3-isp-params\n/dev/video4", shape=box, style=filled, fillcolor=yellow]
+ n0000002b -> n00000001:port1
+ n0000003f [label="{{} | imx290 2-001a\n/dev/v4l-subdev6 | {<port0> 0}}", shape=Mrecord, style=filled, fillcolor=green]
+ n0000003f:port0 -> n0000001e:port0 [style=bold]
+}
diff --git a/Documentation/admin-guide/media/c3-isp.rst b/Documentation/admin-guide/media/c3-isp.rst
new file mode 100644
index 000000000000..ac508b8c6831
--- /dev/null
+++ b/Documentation/admin-guide/media/c3-isp.rst
@@ -0,0 +1,101 @@
+.. SPDX-License-Identifier: (GPL-2.0-only OR MIT)
+
+.. include:: <isonum.txt>
+
+=================================================
+Amlogic C3 Image Signal Processing (C3ISP) driver
+=================================================
+
+Introduction
+============
+
+This file documents the Amlogic C3ISP driver located under
+drivers/media/platform/amlogic/c3/isp.
+
+The current version of the driver supports the C3ISP found on
+Amlogic C308L processor.
+
+The driver implements V4L2, Media controller and V4L2 subdev interfaces.
+Camera sensor using V4L2 subdev interface in the kernel is supported.
+
+The driver has been tested on AW419-C308L-Socket platform.
+
+Amlogic C3 ISP
+==============
+
+The Camera hardware found on C308L processors and supported by
+the driver consists of:
+
+- 1 MIPI-CSI-2 module: handles the physical layer of the MIPI CSI-2 receiver and
+ receives data from the connected camera sensor.
+- 1 MIPI-ADAPTER module: organizes MIPI data to meet ISP input requirements and
+ send MIPI data to ISP.
+- 1 ISP (Image Signal Processing) module: contains a pipeline of image processing
+ hardware blocks. The ISP pipeline contains three resizers at the end each of
+ them connected to a DMA interface which writes the output data to memory.
+
+A high-level functional view of the C3 ISP is presented below.::
+
+ +----------+ +-------+
+ | Resizer |--->| WRMIF |
+ +---------+ +------------+ +--------------+ +-------+ |----------+ +-------+
+ | Sensor |--->| MIPI CSI-2 |--->| MIPI ADAPTER |--->| ISP |---|----------+ +-------+
+ +---------+ +------------+ +--------------+ +-------+ | Resizer |--->| WRMIF |
+ +----------+ +-------+
+ |----------+ +-------+
+ | Resizer |--->| WRMIF |
+ +----------+ +-------+
+
+Driver architecture and design
+==============================
+
+With the goal to model the hardware links between the modules and to expose a
+clean, logical and usable interface, the driver registers the following V4L2
+sub-devices:
+
+- 1 `c3-mipi-csi2` sub-device - the MIPI CSI-2 receiver
+- 1 `c3-mipi-adapter` sub-device - the MIPI adapter
+- 1 `c3-isp-core` sub-device - the ISP core
+- 3 `c3-isp-resizer` sub-devices - the ISP resizers
+
+The `c3-isp-core` sub-device is linked to 2 video device nodes for statistics
+capture and parameters programming:
+
+- the `c3-isp-stats` capture video device node for statistics capture
+- the `c3-isp-params` output video device for parameters programming
+
+Each `c3-isp-resizer` sub-device is linked to a capture video device node where
+frames are captured from:
+
+- `c3-isp-resizer0` is linked to the `c3-isp-cap0` capture video device
+- `c3-isp-resizer1` is linked to the `c3-isp-cap1` capture video device
+- `c3-isp-resizer2` is linked to the `c3-isp-cap2` capture video device
+
+The media controller pipeline graph is as follows (with connected a
+IMX290 camera sensor):
+
+.. _isp_topology_graph:
+
+.. kernel-figure:: c3-isp.dot
+ :alt: c3-isp.dot
+ :align: center
+
+ Media pipeline topology
+
+Implementation
+==============
+
+Runtime configuration of the ISP hardware is performed on the `c3-isp-params`
+video device node using the :ref:`V4L2_META_FMT_C3ISP_PARAMS
+<v4l2-meta-fmt-c3isp-params>` as data format. The buffer structure is defined by
+:c:type:`c3_isp_params_cfg`.
+
+Statistics are captured from the `c3-isp-stats` video device node using the
+:ref:`V4L2_META_FMT_C3ISP_STATS <v4l2-meta-fmt-c3isp-stats>` data format.
+
+The final picture size and format is configured using the V4L2 video
+capture interface on the `c3-isp-cap[0, 2]` video device nodes.
+
+The Amlogic C3 ISP is supported by `libcamera <https://libcamera.org>`_ with a
+dedicated pipeline handler and algorithms that perform run-time image correction
+and enhancement.
diff --git a/Documentation/admin-guide/media/cec.rst b/Documentation/admin-guide/media/cec.rst
index 6b30e355cf23..b2e7a300494a 100644
--- a/Documentation/admin-guide/media/cec.rst
+++ b/Documentation/admin-guide/media/cec.rst
@@ -42,10 +42,14 @@ dongles):
``persistent_config``: by default this is off, but when set to 1 the driver
will store the current settings to the device's internal eeprom and restore
it the next time the device is connected to the USB port.
+
- RainShadow Tech. Note: this driver does not support the persistent_config
module option of the Pulse-Eight driver. The hardware supports it, but I
have no plans to add this feature. But I accept patches :-)
+- Extron DA HD 4K PLUS HDMI Distribution Amplifier. See
+ :ref:`extron_da_hd_4k_plus` for more information.
+
Miscellaneous:
- vivid: emulates a CEC receiver and CEC transmitter.
@@ -378,3 +382,86 @@ it later using ``--analyze-pin``.
You can also use this as a full-fledged CEC device by configuring it
using ``cec-ctl --tv -p0.0.0.0`` or ``cec-ctl --playback -p1.0.0.0``.
+
+.. _extron_da_hd_4k_plus:
+
+Extron DA HD 4K PLUS CEC Adapter driver
+=======================================
+
+This driver is for the Extron DA HD 4K PLUS series of HDMI Distribution
+Amplifiers: https://www.extron.com/product/dahd4kplusseries
+
+The 2, 4 and 6 port models are supported.
+
+Firmware version 1.02.0001 or higher is required.
+
+Note that older Extron hardware revisions have a problem with the CEC voltage,
+which may mean that CEC will not work. This is fixed in hardware revisions
+E34814 and up.
+
+The CEC support has two modes: the first is a manual mode where userspace has
+to manually control CEC for the HDMI Input and all HDMI Outputs. While this gives
+full control, it is also complicated.
+
+The second mode is an automatic mode, which is selected if the module option
+``vendor_id`` is set. In that case the driver controls CEC and CEC messages
+received in the input will be distributed to the outputs. It is still possible
+to use the /dev/cecX devices to talk to the connected devices directly, but it is
+the driver that configures everything and deals with things like Hotplug Detect
+changes.
+
+The driver also takes care of the EDIDs: /dev/videoX devices are created to
+read the EDIDs and (for the HDMI Input port) to set the EDID.
+
+By default userspace is responsible to set the EDID for the HDMI Input
+according to the EDIDs of the connected displays. But if the ``manufacturer_name``
+module option is set, then the driver will take care of setting the EDID
+of the HDMI Input based on the supported resolutions of the connected displays.
+Currently the driver only supports resolutions 1080p60 and 4kp60: if all connected
+displays support 4kp60, then it will advertise 4kp60 on the HDMI input, otherwise
+it will fall back to an EDID that just reports 1080p60.
+
+The status of the Extron is reported in ``/sys/kernel/debug/cec/cecX/status``.
+
+The extron-da-hd-4k-plus driver implements the following module options:
+
+``debug``
+---------
+
+If set to 1, then all serial port traffic is shown.
+
+``vendor_id``
+-------------
+
+The CEC Vendor ID to report to connected displays.
+
+If set, then the driver will take care of distributing CEC messages received
+on the input to the HDMI outputs. This is done for the following CEC messages:
+
+- <Standby>
+- <Image View On> and <Text View On>
+- <Give Device Power Status>
+- <Set System Audio Mode>
+- <Request Current Latency>
+
+If not set, then userspace is responsible for this, and it will have to
+configure the CEC devices for HDMI Input and the HDMI Outputs manually.
+
+``manufacturer_name``
+---------------------
+
+A three character manufacturer name that is used in the EDID for the HDMI
+Input. If not set, then userspace is responsible for configuring an EDID.
+If set, then the driver will update the EDID automatically based on the
+resolutions supported by the connected displays, and it will not be possible
+anymore to manually set the EDID for the HDMI Input.
+
+``hpd_never_low``
+-----------------
+
+If set, then the Hotplug Detect pin of the HDMI Input will always be high,
+even if nothing is connected to the HDMI Outputs. If not set (the default)
+then the Hotplug Detect pin of the HDMI input will go low if all the detected
+Hotplug Detect pins of the HDMI Outputs are also low.
+
+This option may be changed dynamically.
diff --git a/Documentation/admin-guide/media/em28xx-cardlist.rst b/Documentation/admin-guide/media/em28xx-cardlist.rst
index ace65718ea22..7dac07986d91 100644
--- a/Documentation/admin-guide/media/em28xx-cardlist.rst
+++ b/Documentation/admin-guide/media/em28xx-cardlist.rst
@@ -438,3 +438,11 @@ EM28xx cards list
- MyGica iGrabber
- em2860
- 1f4d:1abe
+ * - 106
+ - Hauppauge USB QuadHD ATSC
+ - em28274
+ - 2040:846d
+ * - 107
+ - MyGica UTV3 Analog USB2.0 TV Box
+ - em2860
+ - eb1a:2860
diff --git a/Documentation/admin-guide/media/i2c-cardlist.rst b/Documentation/admin-guide/media/i2c-cardlist.rst
index 1825a0bb47bd..fff962558cd5 100644
--- a/Documentation/admin-guide/media/i2c-cardlist.rst
+++ b/Documentation/admin-guide/media/i2c-cardlist.rst
@@ -91,7 +91,6 @@ ov5647 OmniVision OV5647 sensor
ov5670 OmniVision OV5670 sensor
ov5675 OmniVision OV5675 sensor
ov5695 OmniVision OV5695 sensor
-ov6650 OmniVision OV6650 sensor
ov7251 OmniVision OV7251 sensor
ov7640 OmniVision OV7640 sensor
ov7670 OmniVision OV7670 sensor
diff --git a/Documentation/admin-guide/media/imx.rst b/Documentation/admin-guide/media/imx.rst
index b8fa70f854fd..bb68100d8acb 100644
--- a/Documentation/admin-guide/media/imx.rst
+++ b/Documentation/admin-guide/media/imx.rst
@@ -96,7 +96,7 @@ Some of the features of this driver include:
motion compensation modes: low, medium, and high motion. Pipelines are
defined that allow sending frames to the VDIC subdev directly from the
CSI. There is also support in the future for sending frames to the
- VDIC from memory buffers via a output/mem2mem devices.
+ VDIC from memory buffers via output/mem2mem devices.
- Includes a Frame Interval Monitor (FIM) that can correct vertical sync
problems with the ADV718x video decoders.
diff --git a/Documentation/admin-guide/media/index.rst b/Documentation/admin-guide/media/index.rst
index 43f4a292b245..b11737ae6c04 100644
--- a/Documentation/admin-guide/media/index.rst
+++ b/Documentation/admin-guide/media/index.rst
@@ -20,16 +20,13 @@ Documentation/driver-api/media/index.rst
- for driver development information and Kernel APIs used by
media devices;
-The media subsystem
-===================
+Documentation/process/debugging/media_specific_debugging_guide.rst
-.. only:: html
-
- .. class:: toc-title
-
- Table of Contents
+ - for advice about essential tools and techniques to debug drivers on this
+ subsystem
.. toctree::
+ :caption: Table of Contents
:maxdepth: 2
:numbered:
diff --git a/Documentation/admin-guide/media/ipu3.rst b/Documentation/admin-guide/media/ipu3.rst
index 83b3cd03b35c..9c190942932e 100644
--- a/Documentation/admin-guide/media/ipu3.rst
+++ b/Documentation/admin-guide/media/ipu3.rst
@@ -98,7 +98,7 @@ frames in packed raw Bayer format to IPU3 CSI2 receiver.
# and that ov5670 sensor is connected to i2c bus 10 with address 0x36
export SDEV=$(media-ctl -d $MDEV -e "ov5670 10-0036")
- # Establish the link for the media devices using media-ctl [#f3]_
+ # Establish the link for the media devices using media-ctl
media-ctl -d $MDEV -l "ov5670:0 -> ipu3-csi2 0:0[1]"
# Set the format for the media devices
@@ -589,12 +589,8 @@ preserved.
References
==========
-.. [#f5] drivers/staging/media/ipu3/include/uapi/intel-ipu3.h
-
.. [#f1] https://github.com/intel/nvt
.. [#f2] http://git.ideasonboard.org/yavta.git
-.. [#f3] http://git.ideasonboard.org/?p=media-ctl.git;a=summary
-
.. [#f4] ImgU limitation requires an additional 16x16 for all input resolutions
diff --git a/Documentation/admin-guide/media/ipu6-isys.rst b/Documentation/admin-guide/media/ipu6-isys.rst
new file mode 100644
index 000000000000..d05086824a74
--- /dev/null
+++ b/Documentation/admin-guide/media/ipu6-isys.rst
@@ -0,0 +1,161 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+.. include:: <isonum.txt>
+
+========================================================
+Intel Image Processing Unit 6 (IPU6) Input System driver
+========================================================
+
+Copyright |copy| 2023--2024 Intel Corporation
+
+Introduction
+============
+
+This file documents the Intel IPU6 (6th generation Image Processing Unit)
+Input System (MIPI CSI2 receiver) drivers located under
+drivers/media/pci/intel/ipu6.
+
+The Intel IPU6 can be found in certain Intel SoCs but not in all SKUs:
+
+* Tiger Lake
+* Jasper Lake
+* Alder Lake
+* Raptor Lake
+* Meteor Lake
+
+Intel IPU6 is made up of two components - Input System (ISYS) and Processing
+System (PSYS).
+
+The Input System mainly works as MIPI CSI-2 receiver which receives and
+processes the image data from the sensors and outputs the frames to memory.
+
+There are 2 driver modules - intel-ipu6 and intel-ipu6-isys. intel-ipu6 is an
+IPU6 common driver which does PCI configuration, firmware loading and parsing,
+firmware authentication, DMA mapping and IPU-MMU (internal Memory mapping Unit)
+configuration. intel_ipu6_isys implements V4L2, Media Controller and V4L2
+sub-device interfaces. The IPU6 ISYS driver supports camera sensors connected
+to the IPU6 ISYS through V4L2 sub-device sensor drivers.
+
+.. Note:: See Documentation/driver-api/media/drivers/ipu6.rst for more
+ information about the IPU6 hardware.
+
+Input system driver
+===================
+
+The Input System driver mainly configures CSI-2 D-PHY, constructs the firmware
+stream configuration, sends commands to firmware, gets response from hardware
+and firmware and then returns buffers to user. The ISYS is represented as
+several V4L2 sub-devices as well as video nodes.
+
+.. kernel-figure:: ipu6_isys_graph.svg
+ :alt: ipu6 isys media graph with multiple streams support
+
+ IPU6 ISYS media graph with multiple streams support
+
+The graph has been produced using the following command:
+
+.. code-block:: none
+
+ fdp -Gsplines=true -Tsvg < dot > dot.svg
+
+Capturing frames with IPU6 ISYS
+-------------------------------
+
+IPU6 ISYS is used to capture frames from the camera sensors connected to the
+CSI2 ports. The supported input formats of ISYS are listed in table below:
+
+.. tabularcolumns:: |p{0.8cm}|p{4.0cm}|p{4.0cm}|
+
+.. flat-table::
+ :header-rows: 1
+
+ * - IPU6 ISYS supported input formats
+
+ * - RGB565, RGB888
+
+ * - UYVY8, YUYV8
+
+ * - RAW8, RAW10, RAW12
+
+.. _ipu6_isys_capture_examples:
+
+Examples
+~~~~~~~~
+
+Here is an example of IPU6 ISYS raw capture on Dell XPS 9315 laptop. On this
+machine, ov01a10 sensor is connected to IPU ISYS CSI-2 port 2, which can
+generate images at sBGGR10 with resolution 1280x800.
+
+Using the media controller APIs, we can configure ov01a10 sensor by
+media-ctl [#f1]_ and yavta [#f2]_ to transmit frames to IPU6 ISYS.
+
+.. code-block:: none
+
+ # Example 1 capture frame from ov01a10 camera sensor
+ # This example assumes /dev/media0 as the IPU ISYS media device
+ export MDEV=/dev/media0
+
+ # Establish the link for the media devices using media-ctl
+ media-ctl -d $MDEV -l "\"ov01a10 3-0036\":0 -> \"Intel IPU6 CSI2 2\":0[1]"
+
+ # Set the format for the media devices
+ media-ctl -d $MDEV -V "ov01a10:0 [fmt:SBGGR10/1280x800]"
+ media-ctl -d $MDEV -V "Intel IPU6 CSI2 2:0 [fmt:SBGGR10/1280x800]"
+ media-ctl -d $MDEV -V "Intel IPU6 CSI2 2:1 [fmt:SBGGR10/1280x800]"
+
+Once the media pipeline is configured, desired sensor specific settings
+(such as exposure and gain settings) can be set, using the yavta tool.
+
+e.g
+
+.. code-block:: none
+
+ # and that ov01a10 sensor is connected to i2c bus 3 with address 0x36
+ export SDEV=$(media-ctl -d $MDEV -e "ov01a10 3-0036")
+
+ yavta -w 0x009e0903 400 $SDEV
+ yavta -w 0x009e0913 1000 $SDEV
+ yavta -w 0x009e0911 2000 $SDEV
+
+Once the desired sensor settings are set, frame captures can be done as below.
+
+e.g
+
+.. code-block:: none
+
+ yavta --data-prefix -u -c10 -n5 -I -s 1280x800 --file=/tmp/frame-#.bin \
+ -f SBGGR10 $(media-ctl -d $MDEV -e "Intel IPU6 ISYS Capture 0")
+
+With the above command, 10 frames are captured at 1280x800 resolution with
+sBGGR10 format. The captured frames are available as /tmp/frame-#.bin files.
+
+Here is another example of IPU6 ISYS RAW and metadata capture from camera
+sensor ov2740 on Lenovo X1 Yoga laptop.
+
+.. code-block:: none
+
+ media-ctl -l "\"ov2740 14-0036\":0 -> \"Intel IPU6 CSI2 1\":0[1]"
+ media-ctl -l "\"Intel IPU6 CSI2 1\":1 -> \"Intel IPU6 ISYS Capture 0\":0[1]"
+ media-ctl -l "\"Intel IPU6 CSI2 1\":2 -> \"Intel IPU6 ISYS Capture 1\":0[1]"
+
+ # set routing
+ media-ctl -R "\"Intel IPU6 CSI2 1\" [0/0->1/0[1],0/1->2/1[1]]"
+
+ media-ctl -V "\"Intel IPU6 CSI2 1\":0/0 [fmt:SGRBG10/1932x1092]"
+ media-ctl -V "\"Intel IPU6 CSI2 1\":0/1 [fmt:GENERIC_8/97x1]"
+ media-ctl -V "\"Intel IPU6 CSI2 1\":1/0 [fmt:SGRBG10/1932x1092]"
+ media-ctl -V "\"Intel IPU6 CSI2 1\":2/1 [fmt:GENERIC_8/97x1]"
+
+ CAPTURE_DEV=$(media-ctl -e "Intel IPU6 ISYS Capture 0")
+ ./yavta --data-prefix -c100 -n5 -I -s1932x1092 --file=/tmp/frame-#.bin \
+ -f SGRBG10 ${CAPTURE_DEV}
+
+ CAPTURE_META=$(media-ctl -e "Intel IPU6 ISYS Capture 1")
+ ./yavta --data-prefix -c100 -n5 -I -s97x1 -B meta-capture \
+ --file=/tmp/meta-#.bin -f GENERIC_8 ${CAPTURE_META}
+
+References
+==========
+
+.. [#f1] https://git.ideasonboard.org/media-ctl.git
+.. [#f2] https://git.ideasonboard.org/yavta.git
diff --git a/Documentation/admin-guide/media/ipu6_isys_graph.svg b/Documentation/admin-guide/media/ipu6_isys_graph.svg
new file mode 100644
index 000000000000..c8539ef320d2
--- /dev/null
+++ b/Documentation/admin-guide/media/ipu6_isys_graph.svg
@@ -0,0 +1,548 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN"
+ "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+<!-- Generated by graphviz version 2.43.0 (0)
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+<!-- Title: board Pages: 1 -->
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diff --git a/Documentation/admin-guide/media/ivtv.rst b/Documentation/admin-guide/media/ivtv.rst
index 101f16d0263e..8b65ac3f5321 100644
--- a/Documentation/admin-guide/media/ivtv.rst
+++ b/Documentation/admin-guide/media/ivtv.rst
@@ -3,7 +3,7 @@
The ivtv driver
===============
-Author: Hans Verkuil <hverkuil@xs4all.nl>
+Author: Hans Verkuil <hverkuil@kernel.org>
This is a v4l2 device driver for the Conexant cx23415/6 MPEG encoder/decoder.
The cx23415 can do both encoding and decoding, the cx23416 can only do MPEG
diff --git a/Documentation/admin-guide/media/mali-c55-graph.dot b/Documentation/admin-guide/media/mali-c55-graph.dot
new file mode 100644
index 000000000000..0775ba42bf4c
--- /dev/null
+++ b/Documentation/admin-guide/media/mali-c55-graph.dot
@@ -0,0 +1,19 @@
+digraph board {
+ rankdir=TB
+ n00000001 [label="{{} | mali-c55 tpg\n/dev/v4l-subdev0 | {<port0> 0}}", shape=Mrecord, style=filled, fillcolor=green]
+ n00000001:port0 -> n00000003:port0 [style=dashed]
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+ n00000003:port1 -> n00000007:port0 [style=bold]
+ n00000003:port2 -> n00000007:port2 [style=bold]
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diff --git a/Documentation/admin-guide/media/mali-c55.rst b/Documentation/admin-guide/media/mali-c55.rst
new file mode 100644
index 000000000000..315f982000c4
--- /dev/null
+++ b/Documentation/admin-guide/media/mali-c55.rst
@@ -0,0 +1,413 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+==========================================
+ARM Mali-C55 Image Signal Processor driver
+==========================================
+
+Introduction
+============
+
+This file documents the driver for ARM's Mali-C55 Image Signal Processor. The
+driver is located under drivers/media/platform/arm/mali-c55.
+
+The Mali-C55 ISP receives data in either raw Bayer format or RGB/YUV format from
+sensors through either a parallel interface or a memory bus before processing it
+and outputting it through an internal DMA engine. Two output pipelines are
+possible (though one may not be fitted, depending on the implementation). These
+are referred to as "Full resolution" and "Downscale", but the naming is historic
+and both pipes are capable of cropping/scaling operations. The full resolution
+pipe is also capable of outputting RAW data, bypassing much of the ISP's
+processing. The downscale pipe cannot output RAW data. An integrated test
+pattern generator can be used to drive the ISP and produce image data in the
+absence of a connected camera sensor. The driver module is named mali_c55, and
+is enabled through the CONFIG_VIDEO_MALI_C55 config option.
+
+The driver implements V4L2, Media Controller and V4L2 Subdevice interfaces and
+expects camera sensors connected to the ISP to have V4L2 subdevice interfaces.
+
+Mali-C55 ISP hardware
+=====================
+
+A high level functional view of the Mali-C55 ISP is presented below. The ISP
+takes input from either a live source or through a DMA engine for memory input,
+depending on the SoC integration.::
+
+ +---------+ +----------+ +--------+
+ | Sensor |--->| CSI-2 Rx | "Full Resolution" | DMA |
+ +---------+ +----------+ |\ Output +--->| Writer |
+ | | \ | +--------+
+ | | \ +----------+ +------+---> Streaming I/O
+ +------------+ +------->| | | | |
+ | | | |-->| Mali-C55 |--+
+ | DMA Reader |--------------->| | | ISP | |
+ | | | / | | | +---> Streaming I/O
+ +------------+ | / +----------+ | |
+ |/ +------+
+ | +--------+
+ +--->| DMA |
+ "Downscaled" | Writer |
+ Output +--------+
+
+Media Controller Topology
+=========================
+
+An example of the ISP's topology (as implemented in a system with an IMX415
+camera sensor and generic CSI-2 receiver) is below:
+
+
+.. kernel-figure:: mali-c55-graph.dot
+ :alt: mali-c55-graph.dot
+ :align: center
+
+The driver has 4 V4L2 subdevices:
+
+- `mali_c55 isp`: Responsible for configuring input crop and color space
+ conversion
+- `mali_c55 tpg`: The test pattern generator, emulating a camera sensor.
+- `mali_c55 resizer fr`: The Full-Resolution pipe resizer
+- `mali_c55 resizer ds`: The Downscale pipe resizer
+
+The driver has 3 V4L2 video devices:
+
+- `mali-c55 fr`: The full-resolution pipe's capture device
+- `mali-c55 ds`: The downscale pipe's capture device
+- `mali-c55 3a stats`: The 3A statistics capture device
+
+Frame sequences are synchronised across to two capture devices, meaning if one
+pipe is started later than the other the sequence numbers returned in its
+buffers will match those of the other pipe rather than starting from zero.
+
+Idiosyncrasies
+--------------
+
+**mali-c55 isp**
+The `mali-c55 isp` subdevice has a single sink pad to which all sources of data
+should be connected. The active source is selected by enabling the appropriate
+media link and disabling all others. The ISP has two source pads, reflecting the
+different paths through which it can internally route data. Tap points within
+the ISP allow users to divert data to avoid processing by some or all of the
+hardware's processing steps. The diagram below is intended only to highlight how
+the bypassing works and is not a true reflection of those processing steps; for
+a high-level functional block diagram see ARM's developer page for the
+ISP [3]_::
+
+ +--------------------------------------------------------------+
+ | Possible Internal ISP Data Routes |
+ | +------------+ +----------+ +------------+ |
+ +---+ | | | | | Colour | +---+
+ | 0 |--+-->| Processing |->| Demosaic |->| Space |--->| 1 |
+ +---+ | | | | | | Conversion | +---+
+ | | +------------+ +----------+ +------------+ |
+ | | +---+
+ | +---------------------------------------------------| 2 |
+ | +---+
+ | |
+ +--------------------------------------------------------------+
+
+
+.. flat-table::
+ :header-rows: 1
+
+ * - Pad
+ - Direction
+ - Purpose
+
+ * - 0
+ - sink
+ - Data input, connected to the TPG and camera sensors
+
+ * - 1
+ - source
+ - RGB/YUV data, connected to the FR and DS V4L2 subdevices
+
+ * - 2
+ - source
+ - RAW bayer data, connected to the FR V4L2 subdevices
+
+The ISP is limited to both input and output resolutions between 640x480 and
+8192x8192, and this is reflected in the ISP and resizer subdevice's .set_fmt()
+operations.
+
+**mali-c55 resizer fr**
+The `mali-c55 resizer fr` subdevice has two _sink_ pads to reflect the different
+insertion points in the hardware (either RAW or demosaiced data):
+
+.. flat-table::
+ :header-rows: 1
+
+ * - Pad
+ - Direction
+ - Purpose
+
+ * - 0
+ - sink
+ - Data input connected to the ISP's demosaiced stream.
+
+ * - 1
+ - source
+ - Data output connected to the capture video device
+
+ * - 2
+ - sink
+ - Data input connected to the ISP's raw data stream
+
+The data source in use is selected through the routing API; two routes each of a
+single stream are available:
+
+.. flat-table::
+ :header-rows: 1
+
+ * - Sink Pad
+ - Source Pad
+ - Purpose
+
+ * - 0
+ - 1
+ - Demosaiced data route
+
+ * - 2
+ - 1
+ - Raw data route
+
+
+If the demosaiced route is active then the FR pipe is only capable of output
+in RGB/YUV formats. If the raw route is active then the output reflects the
+input (which may be either Bayer or RGB/YUV data).
+
+Using the driver to capture video
+=================================
+
+Using the media controller APIs we can configure the input source and ISP to
+capture images in a variety of formats. In the examples below, configuring the
+media graph is done with the v4l-utils [1]_ package's media-ctl utility.
+Capturing the images is done with yavta [2]_.
+
+Configuring the input source
+----------------------------
+
+The first step is to set the input source that we wish by enabling the correct
+media link. Using the example topology above, we can select the TPG as follows:
+
+.. code-block:: none
+
+ media-ctl -l "'lte-csi2-rx':1->'mali-c55 isp':0[0]"
+ media-ctl -l "'mali-c55 tpg':0->'mali-c55 isp':0[1]"
+
+Configuring which video devices will stream data
+------------------------------------------------
+
+The driver will wait for all video devices to have their VIDIOC_STREAMON ioctl
+called before it tells the sensor to start streaming. To facilitate this we need
+to enable links to the video devices that we want to use. In the example below
+we enable the links to both of the image capture video devices
+
+.. code-block:: none
+
+ media-ctl -l "'mali-c55 resizer fr':1->'mali-c55 fr':0[1]"
+ media-ctl -l "'mali-c55 resizer ds':1->'mali-c55 ds':0[1]"
+
+Capturing bayer data from the source and processing to RGB/YUV
+--------------------------------------------------------------
+
+To capture 1920x1080 bayer data from the source and push it through the ISP's
+full processing pipeline, we configure the data formats appropriately on the
+source, ISP and resizer subdevices and set the FR resizer's routing to select
+processed data. The media bus format on the resizer's source pad will be either
+RGB121212_1X36 or YUV10_1X30, depending on whether you want to capture RGB or
+YUV. The ISP's debayering block outputs RGB data natively, setting the source
+pad format to YUV10_1X30 enables the colour space conversion block.
+
+In this example we target RGB565 output, so select RGB121212_1X36 as the resizer
+source pad's format:
+
+.. code-block:: none
+
+ # Set formats on the TPG and ISP
+ media-ctl -V "'mali-c55 tpg':0[fmt:SRGGB20_1X20/1920x1080]"
+ media-ctl -V "'mali-c55 isp':0[fmt:SRGGB20_1X20/1920x1080]"
+ media-ctl -V "'mali-c55 isp':1[fmt:SRGGB20_1X20/1920x1080]"
+
+ # Set routing on the FR resizer
+ media-ctl -R "'mali-c55 resizer fr'[0/0->1/0[1],2/0->1/0[0]]"
+
+ # Set format on the resizer, must be done AFTER the routing.
+ media-ctl -V "'mali-c55 resizer fr':1[fmt:RGB121212_1X36/1920x1080]"
+
+The downscale output can also be used to stream data at the same time. In this
+case since only processed data can be captured through the downscale output no
+routing need be set:
+
+.. code-block:: none
+
+ # Set format on the resizer
+ media-ctl -V "'mali-c55 resizer ds':1[fmt:RGB121212_1X36/1920x1080]"
+
+Following which images can be captured from both the FR and DS output's video
+devices (simultaneously, if desired):
+
+.. code-block:: none
+
+ yavta -f RGB565 -s 1920x1080 -c10 /dev/video0
+ yavta -f RGB565 -s 1920x1080 -c10 /dev/video1
+
+Cropping the image
+~~~~~~~~~~~~~~~~~~
+
+Both the full resolution and downscale pipes can crop to a minimum resolution of
+640x480. To crop the image simply configure the resizer's sink pad's crop and
+compose rectangles and set the format on the video device:
+
+.. code-block:: none
+
+ media-ctl -V "'mali-c55 resizer fr':0[fmt:RGB121212_1X36/1920x1080 crop:(480,270)/640x480 compose:(0,0)/640x480]"
+ media-ctl -V "'mali-c55 resizer fr':1[fmt:RGB121212_1X36/640x480]"
+ yavta -f RGB565 -s 640x480 -c10 /dev/video0
+
+Downscaling the image
+~~~~~~~~~~~~~~~~~~~~~
+
+Both the full resolution and downscale pipes can downscale the image by up to 8x
+provided the minimum 640x480 output resolution is adhered to. For the best image
+result the scaling ratio for each direction should be the same. To configure
+scaling we use the compose rectangle on the resizer's sink pad:
+
+.. code-block:: none
+
+ media-ctl -V "'mali-c55 resizer fr':0[fmt:RGB121212_1X36/1920x1080 crop:(0,0)/1920x1080 compose:(0,0)/640x480]"
+ media-ctl -V "'mali-c55 resizer fr':1[fmt:RGB121212_1X36/640x480]"
+ yavta -f RGB565 -s 640x480 -c10 /dev/video0
+
+Capturing images in YUV formats
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+If we need to output YUV data rather than RGB the color space conversion block
+needs to be active, which is achieved by setting MEDIA_BUS_FMT_YUV10_1X30 on the
+resizer's source pad. We can then configure a capture format like NV12 (here in
+its multi-planar variant)
+
+.. code-block:: none
+
+ media-ctl -V "'mali-c55 resizer fr':1[fmt:YUV10_1X30/1920x1080]"
+ yavta -f NV12M -s 1920x1080 -c10 /dev/video0
+
+Capturing RGB data from the source and processing it with the resizers
+----------------------------------------------------------------------
+
+The Mali-C55 ISP can work with sensors capable of outputting RGB data. In this
+case although none of the image quality blocks would be used it can still
+crop/scale the data in the usual way. For this reason RGB data input to the ISP
+still goes through the ISP subdevice's pad 1 to the resizer.
+
+To achieve this, the ISP's sink pad's format is set to
+MEDIA_BUS_FMT_RGB202020_1X60 - this reflects the format that data must be in to
+work with the ISP. Converting the camera sensor's output to that format is the
+responsibility of external hardware.
+
+In this example we ask the test pattern generator to give us RGB data instead of
+bayer.
+
+.. code-block:: none
+
+ media-ctl -V "'mali-c55 tpg':0[fmt:RGB202020_1X60/1920x1080]"
+ media-ctl -V "'mali-c55 isp':0[fmt:RGB202020_1X60/1920x1080]"
+
+Cropping or scaling the data can be done in exactly the same way as outlined
+earlier.
+
+Capturing raw data from the source and outputting it unmodified
+-----------------------------------------------------------------
+
+The ISP can additionally capture raw data from the source and output it on the
+full resolution pipe only, completely unmodified. In this case the downscale
+pipe can still process the data normally and be used at the same time.
+
+To configure raw bypass the FR resizer's subdevice's routing table needs to be
+configured, followed by formats in the appropriate places:
+
+.. code-block:: none
+
+ media-ctl -R "'mali-c55 resizer fr'[0/0->1/0[0],2/0->1/0[1]]"
+ media-ctl -V "'mali-c55 isp':0[fmt:RGB202020_1X60/1920x1080]"
+ media-ctl -V "'mali-c55 resizer fr':2[fmt:RGB202020_1X60/1920x1080]"
+ media-ctl -V "'mali-c55 resizer fr':1[fmt:RGB202020_1X60/1920x1080]"
+
+ # Set format on the video device and stream
+ yavta -f RGB565 -s 1920x1080 -c10 /dev/video0
+
+.. _mali-c55-3a-stats:
+
+Capturing ISP Statistics
+========================
+
+The ISP is capable of producing statistics for consumption by image processing
+algorithms running in userspace. These statistics can be captured by queueing
+buffers to the `mali-c55 3a stats` V4L2 Device whilst the ISP is streaming. Only
+the :ref:`V4L2_META_FMT_MALI_C55_STATS <v4l2-meta-fmt-mali-c55-stats>`
+format is supported, so no format-setting need be done:
+
+.. code-block:: none
+
+ # We assume the media graph has been configured to support RGB565 capture
+ # from the mali-c55 fr V4L2 Device, which is at /dev/video0. The statistics
+ # V4L2 device is at /dev/video3
+
+ yavta -f RGB565 -s 1920x1080 -c32 /dev/video0 && \
+ yavta -c10 -F /dev/video3
+
+The layout of the buffer is described by :c:type:`mali_c55_stats_buffer`,
+but broadly statistics are generated to support three image processing
+algorithms; AEXP (Auto-Exposure), AWB (Auto-White Balance) and AF (Auto-Focus).
+These stats can be drawn from various places in the Mali C55 ISP pipeline, known
+as "tap points". This high-level block diagram is intended to explain where in
+the processing flow the statistics can be drawn from::
+
+ +--> AEXP-2 +----> AEXP-1 +--> AF-0
+ | +----> AF-1 |
+ | | |
+ +---------+ | +--------------+ | +--------------+ |
+ | Input +-+-->+ Digital Gain +---+-->+ Black Level +---+---+
+ +---------+ +--------------+ +--------------+ |
+ +-----------------------------------------------------------------+
+ |
+ | +--------------+ +---------+ +----------------+
+ +-->| Sinter Noise +-+ White +--+--->| Lens Shading +--+---------------+
+ | Reduction | | Balance | | | | | |
+ +--------------+ +---------+ | +----------------+ | |
+ +---> AEXP-0 (A) +--> AEXP-0 (B) |
+ +--------------------------------------------------------------------------+
+ |
+ | +----------------+ +--------------+ +----------------+
+ +-->| Tone mapping +-+--->| Demosaicing +->+ Purple Fringe +-+-----------+
+ | | | +--------------+ | Correction | | |
+ +----------------+ +-> AEXP-IRIDIX +----------------+ +---> AWB-0 |
+ +----------------------------------------------------------------------------+
+ | +-------------+ +-------------+
+ +------------------->| Colour +---+--->| Output |
+ | Correction | | | Pipelines |
+ +-------------+ | +-------------+
+ +--> AWB-1
+
+By default all statistics are drawn from the 0th tap point for each algorithm;
+I.E. AEXP statistics from AEXP-0 (A), AWB statistics from AWB-0 and AF
+statistics from AF-0. This is configurable for AEXP and AWB statsistics through
+programming the ISP's parameters.
+
+.. _mali-c55-3a-params:
+
+Programming ISP Parameters
+==========================
+
+The ISP can be programmed with various parameters from userspace to apply to the
+hardware before and during video stream. This allows userspace to dynamically
+change values such as black level, white balance and lens shading gains and so
+on.
+
+The buffer format and how to populate it are described by the
+:ref:`V4L2_META_FMT_MALI_C55_PARAMS <v4l2-meta-fmt-mali-c55-params>` format,
+which should be set as the data format for the `mali-c55 3a params` video node.
+
+References
+==========
+.. [1] https://git.linuxtv.org/v4l-utils.git/
+.. [2] https://git.ideasonboard.org/yavta.git
+.. [3] https://developer.arm.com/Processors/Mali-C55
diff --git a/Documentation/admin-guide/media/mgb4.rst b/Documentation/admin-guide/media/mgb4.rst
new file mode 100644
index 000000000000..5ac69b833a7a
--- /dev/null
+++ b/Documentation/admin-guide/media/mgb4.rst
@@ -0,0 +1,385 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+.. include:: <isonum.txt>
+
+The mgb4 driver
+===============
+
+Copyright |copy| 2023 - 2025 Digiteq Automotive
+ author: Martin Tůma <martin.tuma@digiteqautomotive.com>
+
+This is a v4l2 device driver for the Digiteq Automotive FrameGrabber 4, a PCIe
+card capable of capturing and generating FPD-Link III and GMSL2/3 video streams
+as used in the automotive industry.
+
+sysfs interface
+---------------
+
+The mgb4 driver provides a sysfs interface, that is used to configure video
+stream related parameters (some of them must be set properly before the v4l2
+device can be opened) and obtain the video device/stream status.
+
+There are two types of parameters - global / PCI card related, found under
+``/sys/class/video4linux/videoX/device`` and module specific found under
+``/sys/class/video4linux/videoX``.
+
+Global (PCI card) parameters
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+**module_type** (R):
+ Module type.
+
+ | 0 - No module present
+ | 1 - FPDL3
+ | 2 - GMSL (one serializer, two daisy chained deserializers)
+ | 3 - GMSL (one serializer, two deserializers)
+ | 4 - GMSL (two deserializers with two daisy chain outputs)
+
+**module_version** (R):
+ Module version number. Zero in case of a missing module.
+
+**fw_type** (R):
+ Firmware type.
+
+ | 1 - FPDL3
+ | 2 - GMSL
+
+**fw_version** (R):
+ Firmware version number.
+
+**serial_number** (R):
+ Card serial number. The format is::
+
+ PRODUCT-REVISION-SERIES-SERIAL
+
+ where each component is a 8b number.
+
+Common FPDL3/GMSL input parameters
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+**input_id** (R):
+ Input number ID, zero based.
+
+**oldi_lane_width** (RW):
+ Number of deserializer output lanes.
+
+ | 0 - single
+ | 1 - dual (default)
+
+**color_mapping** (RW):
+ Mapping of the incoming bits in the signal to the colour bits of the pixels.
+
+ | 0 - OLDI/JEIDA
+ | 1 - SPWG/VESA (default)
+
+**link_status** (R):
+ Video link status. If the link is locked, chips are properly connected and
+ communicating at the same speed and protocol. The link can be locked without
+ an active video stream.
+
+ A value of 0 is equivalent to the V4L2_IN_ST_NO_SYNC flag of the V4L2
+ VIDIOC_ENUMINPUT status bits.
+
+ | 0 - unlocked
+ | 1 - locked
+
+**stream_status** (R):
+ Video stream status. A stream is detected if the link is locked, the input
+ pixel clock is running and the DE signal is moving.
+
+ A value of 0 is equivalent to the V4L2_IN_ST_NO_SIGNAL flag of the V4L2
+ VIDIOC_ENUMINPUT status bits.
+
+ | 0 - not detected
+ | 1 - detected
+
+**video_width** (R):
+ Video stream width. This is the actual width as detected by the HW.
+
+ The value is identical to what VIDIOC_QUERY_DV_TIMINGS returns in the width
+ field of the v4l2_bt_timings struct.
+
+**video_height** (R):
+ Video stream height. This is the actual height as detected by the HW.
+
+ The value is identical to what VIDIOC_QUERY_DV_TIMINGS returns in the height
+ field of the v4l2_bt_timings struct.
+
+**vsync_status** (R):
+ The type of VSYNC pulses as detected by the video format detector.
+
+ The value is equivalent to the flags returned by VIDIOC_QUERY_DV_TIMINGS in
+ the polarities field of the v4l2_bt_timings struct.
+
+ | 0 - active low
+ | 1 - active high
+ | 2 - not available
+
+**hsync_status** (R):
+ The type of HSYNC pulses as detected by the video format detector.
+
+ The value is equivalent to the flags returned by VIDIOC_QUERY_DV_TIMINGS in
+ the polarities field of the v4l2_bt_timings struct.
+
+ | 0 - active low
+ | 1 - active high
+ | 2 - not available
+
+**vsync_gap_length** (RW):
+ If the incoming video signal does not contain synchronization VSYNC and
+ HSYNC pulses, these must be generated internally in the FPGA to achieve
+ the correct frame ordering. This value indicates, how many "empty" pixels
+ (pixels with deasserted Data Enable signal) are necessary to generate the
+ internal VSYNC pulse.
+
+**hsync_gap_length** (RW):
+ If the incoming video signal does not contain synchronization VSYNC and
+ HSYNC pulses, these must be generated internally in the FPGA to achieve
+ the correct frame ordering. This value indicates, how many "empty" pixels
+ (pixels with deasserted Data Enable signal) are necessary to generate the
+ internal HSYNC pulse. The value must be greater than 1 and smaller than
+ vsync_gap_length.
+
+**pclk_frequency** (R):
+ Input pixel clock frequency in kHz.
+
+ The value is identical to what VIDIOC_QUERY_DV_TIMINGS returns in
+ the pixelclock field of the v4l2_bt_timings struct.
+
+ *Note: The frequency_range parameter must be set properly first to get
+ a valid frequency here.*
+
+**hsync_width** (R):
+ Width of the HSYNC signal in PCLK clock ticks.
+
+ The value is identical to what VIDIOC_QUERY_DV_TIMINGS returns in
+ the hsync field of the v4l2_bt_timings struct.
+
+**vsync_width** (R):
+ Width of the VSYNC signal in PCLK clock ticks.
+
+ The value is identical to what VIDIOC_QUERY_DV_TIMINGS returns in
+ the vsync field of the v4l2_bt_timings struct.
+
+**hback_porch** (R):
+ Number of PCLK pulses between deassertion of the HSYNC signal and the first
+ valid pixel in the video line (marked by DE=1).
+
+ The value is identical to what VIDIOC_QUERY_DV_TIMINGS returns in
+ the hbackporch field of the v4l2_bt_timings struct.
+
+**hfront_porch** (R):
+ Number of PCLK pulses between the end of the last valid pixel in the video
+ line (marked by DE=1) and assertion of the HSYNC signal.
+
+ The value is identical to what VIDIOC_QUERY_DV_TIMINGS returns in
+ the hfrontporch field of the v4l2_bt_timings struct.
+
+**vback_porch** (R):
+ Number of video lines between deassertion of the VSYNC signal and the video
+ line with the first valid pixel (marked by DE=1).
+
+ The value is identical to what VIDIOC_QUERY_DV_TIMINGS returns in
+ the vbackporch field of the v4l2_bt_timings struct.
+
+**vfront_porch** (R):
+ Number of video lines between the end of the last valid pixel line (marked
+ by DE=1) and assertion of the VSYNC signal.
+
+ The value is identical to what VIDIOC_QUERY_DV_TIMINGS returns in
+ the vfrontporch field of the v4l2_bt_timings struct.
+
+**frequency_range** (RW)
+ PLL frequency range of the OLDI input clock generator. The PLL frequency is
+ derived from the Pixel Clock Frequency (PCLK) and is equal to PCLK if
+ oldi_lane_width is set to "single" and PCLK/2 if oldi_lane_width is set to
+ "dual".
+
+ | 0 - PLL < 50MHz (default)
+ | 1 - PLL >= 50MHz
+
+ *Note: This parameter can not be changed while the input v4l2 device is
+ open.*
+
+Common FPDL3/GMSL output parameters
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+**output_id** (R):
+ Output number ID, zero based.
+
+**video_source** (RW):
+ Output video source. If set to 0 or 1, the source is the corresponding card
+ input and the v4l2 output devices are disabled. If set to 2 or 3, the source
+ is the corresponding v4l2 video output device. The default is
+ the corresponding v4l2 output, i.e. 2 for OUT1 and 3 for OUT2.
+
+ | 0 - input 0
+ | 1 - input 1
+ | 2 - v4l2 output 0
+ | 3 - v4l2 output 1
+
+ *Note: This parameter can not be changed while ANY of the input/output v4l2
+ devices is open.*
+
+**display_width** (RW):
+ Display width. There is no autodetection of the connected display, so the
+ proper value must be set before the start of streaming. The default width
+ is 1280.
+
+ *Note: This parameter can not be changed while the output v4l2 device is
+ open.*
+
+**display_height** (RW):
+ Display height. There is no autodetection of the connected display, so the
+ proper value must be set before the start of streaming. The default height
+ is 640.
+
+ *Note: This parameter can not be changed while the output v4l2 device is
+ open.*
+
+**frame_rate** (RW):
+ Output video signal frame rate limit in frames per second. Due to
+ the limited output pixel clock steps, the card can not always generate
+ a frame rate perfectly matching the value required by the connected display.
+ Using this parameter one can limit the frame rate by "crippling" the signal
+ so that the lines are not equal (the porches of the last line differ) but
+ the signal appears like having the exact frame rate to the connected display.
+ The default frame rate limit is 60Hz.
+
+**hsync_polarity** (RW):
+ HSYNC signal polarity.
+
+ | 0 - active low (default)
+ | 1 - active high
+
+**vsync_polarity** (RW):
+ VSYNC signal polarity.
+
+ | 0 - active low (default)
+ | 1 - active high
+
+**de_polarity** (RW):
+ DE signal polarity.
+
+ | 0 - active low
+ | 1 - active high (default)
+
+**pclk_frequency** (RW):
+ Output pixel clock frequency. Allowed values are between 25000-190000(kHz)
+ and there is a non-linear stepping between two consecutive allowed
+ frequencies. The driver finds the nearest allowed frequency to the given
+ value and sets it. When reading this property, you get the exact
+ frequency set by the driver. The default frequency is 61150kHz.
+
+ *Note: This parameter can not be changed while the output v4l2 device is
+ open.*
+
+**hsync_width** (RW):
+ Width of the HSYNC signal in pixels. The default value is 40.
+
+**vsync_width** (RW):
+ Width of the VSYNC signal in video lines. The default value is 20.
+
+**hback_porch** (RW):
+ Number of PCLK pulses between deassertion of the HSYNC signal and the first
+ valid pixel in the video line (marked by DE=1). The default value is 50.
+
+**hfront_porch** (RW):
+ Number of PCLK pulses between the end of the last valid pixel in the video
+ line (marked by DE=1) and assertion of the HSYNC signal. The default value
+ is 50.
+
+**vback_porch** (RW):
+ Number of video lines between deassertion of the VSYNC signal and the video
+ line with the first valid pixel (marked by DE=1). The default value is 31.
+
+**vfront_porch** (RW):
+ Number of video lines between the end of the last valid pixel line (marked
+ by DE=1) and assertion of the VSYNC signal. The default value is 30.
+
+FPDL3 specific input parameters
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+**fpdl3_input_width** (RW):
+ Number of deserializer input lines.
+
+ | 0 - auto (default)
+ | 1 - single
+ | 2 - dual
+
+FPDL3 specific output parameters
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+**fpdl3_output_width** (RW):
+ Number of serializer output lines.
+
+ | 0 - auto (default)
+ | 1 - single
+ | 2 - dual
+
+GMSL specific input parameters
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+**gmsl_mode** (RW):
+ GMSL speed mode.
+
+ | 0 - 12Gb/s (default)
+ | 1 - 6Gb/s
+ | 2 - 3Gb/s
+ | 3 - 1.5Gb/s
+
+**gmsl_stream_id** (RW):
+ The GMSL multi-stream contains up to four video streams. This parameter
+ selects which stream is captured by the video input. The value is the
+ zero-based index of the stream. The default stream id is 0.
+
+ *Note: This parameter can not be changed while the input v4l2 device is
+ open.*
+
+**gmsl_fec** (RW):
+ GMSL Forward Error Correction (FEC).
+
+ | 0 - disabled
+ | 1 - enabled (default)
+
+MTD partitions
+--------------
+
+The mgb4 driver creates a MTD device with two partitions:
+ - mgb4-fw.X - FPGA firmware.
+ - mgb4-data.X - Factory settings, e.g. card serial number.
+
+The *mgb4-fw* partition is writable and is used for FW updates, *mgb4-data* is
+read-only. The *X* attached to the partition name represents the card number.
+Depending on the CONFIG_MTD_PARTITIONED_MASTER kernel configuration, you may
+also have a third partition named *mgb4-flash* available in the system. This
+partition represents the whole, unpartitioned, card's FLASH memory and one should
+not fiddle with it...
+
+IIO (triggers)
+--------------
+
+The mgb4 driver creates an Industrial I/O (IIO) device that provides trigger and
+signal level status capability. The following scan elements are available:
+
+**activity**:
+ The trigger levels and pending status.
+
+ | bit 1 - trigger 1 pending
+ | bit 2 - trigger 2 pending
+ | bit 5 - trigger 1 level
+ | bit 6 - trigger 2 level
+
+**timestamp**:
+ The trigger event timestamp.
+
+The iio device can operate either in "raw" mode where you can fetch the signal
+levels (activity bits 5 and 6) using sysfs access or in triggered buffer mode.
+In the triggered buffer mode you can follow the signal level changes (activity
+bits 1 and 2) using the iio device in /dev. If you enable the timestamps, you
+will also get the exact trigger event time that can be matched to a video frame
+(every mgb4 video frame has a timestamp with the same clock source).
+
+*Note: although the activity sample always contains all the status bits, it makes
+no sense to get the pending bits in raw mode or the level bits in the triggered
+buffer mode - the values do not represent valid data in such case.*
diff --git a/Documentation/admin-guide/media/omap4_camera.rst b/Documentation/admin-guide/media/omap4_camera.rst
deleted file mode 100644
index 2ada9b1e6897..000000000000
--- a/Documentation/admin-guide/media/omap4_camera.rst
+++ /dev/null
@@ -1,62 +0,0 @@
-.. SPDX-License-Identifier: GPL-2.0
-
-OMAP4 ISS Driver
-================
-
-Author: Sergio Aguirre <sergio.a.aguirre@gmail.com>
-
-Copyright (C) 2012, Texas Instruments
-
-Introduction
-------------
-
-The OMAP44XX family of chips contains the Imaging SubSystem (a.k.a. ISS),
-Which contains several components that can be categorized in 3 big groups:
-
-- Interfaces (2 Interfaces: CSI2-A & CSI2-B/CCP2)
-- ISP (Image Signal Processor)
-- SIMCOP (Still Image Coprocessor)
-
-For more information, please look in [#f1]_ for latest version of:
-"OMAP4430 Multimedia Device Silicon Revision 2.x"
-
-As of Revision AB, the ISS is described in detail in section 8.
-
-This driver is supporting **only** the CSI2-A/B interfaces for now.
-
-It makes use of the Media Controller framework [#f2]_, and inherited most of the
-code from OMAP3 ISP driver (found under drivers/media/platform/ti/omap3isp/\*),
-except that it doesn't need an IOMMU now for ISS buffers memory mapping.
-
-Supports usage of MMAP buffers only (for now).
-
-Tested platforms
-----------------
-
-- OMAP4430SDP, w/ ES2.1 GP & SEVM4430-CAM-V1-0 (Contains IMX060 & OV5640, in
- which only the last one is supported, outputting YUV422 frames).
-
-- TI Blaze MDP, w/ OMAP4430 ES2.2 EMU (Contains 1 IMX060 & 2 OV5650 sensors, in
- which only the OV5650 are supported, outputting RAW10 frames).
-
-- PandaBoard, Rev. A2, w/ OMAP4430 ES2.1 GP & OV adapter board, tested with
- following sensors:
- * OV5640
- * OV5650
-
-- Tested on mainline kernel:
-
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=summary
-
- Tag: v3.3 (commit c16fa4f2ad19908a47c63d8fa436a1178438c7e7)
-
-File list
----------
-drivers/staging/media/omap4iss/
-include/linux/platform_data/media/omap4iss.h
-
-References
-----------
-
-.. [#f1] http://focus.ti.com/general/docs/wtbu/wtbudocumentcenter.tsp?navigationId=12037&templateId=6123#62
-.. [#f2] http://lwn.net/Articles/420485/
diff --git a/Documentation/admin-guide/media/pci-cardlist.rst b/Documentation/admin-guide/media/pci-cardlist.rst
index 42528795d4da..239879634ea5 100644
--- a/Documentation/admin-guide/media/pci-cardlist.rst
+++ b/Documentation/admin-guide/media/pci-cardlist.rst
@@ -77,6 +77,7 @@ ipu3-cio2 Intel ipu3-cio2 driver
ivtv Conexant cx23416/cx23415 MPEG encoder/decoder
ivtvfb Conexant cx23415 framebuffer
mantis MANTIS based cards
+mgb4 Digiteq Automotive MGB4 frame grabber
mxb Siemens-Nixdorf 'Multimedia eXtension Board'
netup-unidvb NetUP Universal DVB card
ngene Micronas nGene
@@ -85,7 +86,6 @@ saa7134 Philips SAA7134
saa7164 NXP SAA7164
smipcie SMI PCIe DVBSky cards
solo6x10 Bluecherry / Softlogic 6x10 capture cards (MPEG-4/H.264)
-sta2x11_vip STA2X11 VIP Video For Linux
tw5864 Techwell TW5864 video/audio grabber and encoder
tw686x Intersil/Techwell TW686x
tw68 Techwell tw68x Video For Linux
diff --git a/Documentation/admin-guide/media/platform-cardlist.rst b/Documentation/admin-guide/media/platform-cardlist.rst
index 1230ae4037ad..63f4b19c3628 100644
--- a/Documentation/admin-guide/media/platform-cardlist.rst
+++ b/Documentation/admin-guide/media/platform-cardlist.rst
@@ -18,8 +18,6 @@ am437x-vpfe TI AM437x VPFE
aspeed-video Aspeed AST2400 and AST2500
atmel-isc ATMEL Image Sensor Controller (ISC)
atmel-isi ATMEL Image Sensor Interface (ISI)
-c8sectpfe SDR platform devices
-c8sectpfe SDR platform devices
cafe_ccic Marvell 88ALP01 (Cafe) CMOS Camera Controller
cdns-csi2rx Cadence MIPI-CSI2 RX Controller
cdns-csi2tx Cadence MIPI-CSI2 TX Controller
diff --git a/Documentation/admin-guide/media/qcom_camss.rst b/Documentation/admin-guide/media/qcom_camss.rst
index a72e17d09cb7..8a8f3ff40105 100644
--- a/Documentation/admin-guide/media/qcom_camss.rst
+++ b/Documentation/admin-guide/media/qcom_camss.rst
@@ -18,7 +18,7 @@ The driver implements V4L2, Media controller and V4L2 subdev interfaces.
Camera sensor using V4L2 subdev interface in the kernel is supported.
The driver is implemented using as a reference the Qualcomm Camera Subsystem
-driver for Android as found in Code Aurora [#f1]_ [#f2]_.
+driver for Android as found in Code Linaro [#f1]_ [#f2]_.
Qualcomm Camera Subsystem hardware
@@ -181,5 +181,5 @@ Referenced 2018-06-22.
References
----------
-.. [#f1] https://source.codeaurora.org/quic/la/kernel/msm-3.10/
-.. [#f2] https://source.codeaurora.org/quic/la/kernel/msm-3.18/
+.. [#f1] https://git.codelinaro.org/clo/la/kernel/msm-3.10/
+.. [#f2] https://git.codelinaro.org/clo/la/kernel/msm-3.18/
diff --git a/Documentation/admin-guide/media/radio-cardlist.rst b/Documentation/admin-guide/media/radio-cardlist.rst
index a82a146bf912..cec724256812 100644
--- a/Documentation/admin-guide/media/radio-cardlist.rst
+++ b/Documentation/admin-guide/media/radio-cardlist.rst
@@ -30,7 +30,6 @@ radio-terratec TerraTec ActiveRadio ISA Standalone
radio-timb Enable the Timberdale radio driver
radio-trust Trust FM radio card
radio-typhoon Typhoon Radio (a.k.a. EcoRadio)
-radio-wl1273 Texas Instruments WL1273 I2C FM Radio
fm_drv ISA radio devices
fm_drv ISA radio devices
radio-zoltrix Zoltrix Radio
diff --git a/Documentation/admin-guide/media/raspberrypi-pisp-be.dot b/Documentation/admin-guide/media/raspberrypi-pisp-be.dot
new file mode 100644
index 000000000000..55671dc1d443
--- /dev/null
+++ b/Documentation/admin-guide/media/raspberrypi-pisp-be.dot
@@ -0,0 +1,20 @@
+digraph board {
+ rankdir=TB
+ n00000001 [label="{{<port0> 0 | <port1> 1 | <port2> 2 | <port7> 7} | pispbe\n | {<port3> 3 | <port4> 4 | <port5> 5 | <port6> 6}}", shape=Mrecord, style=filled, fillcolor=green]
+ n00000001:port3 -> n0000001c [style=bold]
+ n00000001:port4 -> n00000022 [style=bold]
+ n00000001:port5 -> n00000028 [style=bold]
+ n00000001:port6 -> n0000002e [style=bold]
+ n0000000a [label="pispbe-input\n/dev/video0", shape=box, style=filled, fillcolor=yellow]
+ n0000000a -> n00000001:port0 [style=bold]
+ n00000010 [label="pispbe-tdn_input\n/dev/video1", shape=box, style=filled, fillcolor=yellow]
+ n00000010 -> n00000001:port1 [style=bold]
+ n00000016 [label="pispbe-stitch_input\n/dev/video2", shape=box, style=filled, fillcolor=yellow]
+ n00000016 -> n00000001:port2 [style=bold]
+ n0000001c [label="pispbe-output0\n/dev/video3", shape=box, style=filled, fillcolor=yellow]
+ n00000022 [label="pispbe-output1\n/dev/video4", shape=box, style=filled, fillcolor=yellow]
+ n00000028 [label="pispbe-tdn_output\n/dev/video5", shape=box, style=filled, fillcolor=yellow]
+ n0000002e [label="pispbe-stitch_output\n/dev/video6", shape=box, style=filled, fillcolor=yellow]
+ n00000034 [label="pispbe-config\n/dev/video7", shape=box, style=filled, fillcolor=yellow]
+ n00000034 -> n00000001:port7 [style=bold]
+}
diff --git a/Documentation/admin-guide/media/raspberrypi-pisp-be.rst b/Documentation/admin-guide/media/raspberrypi-pisp-be.rst
new file mode 100644
index 000000000000..0fcf46f26276
--- /dev/null
+++ b/Documentation/admin-guide/media/raspberrypi-pisp-be.rst
@@ -0,0 +1,109 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=========================================================
+Raspberry Pi PiSP Back End Memory-to-Memory ISP (pisp-be)
+=========================================================
+
+The PiSP Back End
+=================
+
+The PiSP Back End is a memory-to-memory Image Signal Processor (ISP) which reads
+image data from DRAM memory and performs image processing as specified by the
+application through the parameters in a configuration buffer, before writing
+pixel data back to memory through two distinct output channels.
+
+The ISP registers and programming model are documented in the `Raspberry Pi
+Image Signal Processor (PiSP) Specification document`_
+
+The PiSP Back End ISP processes images in tiles. The handling of image
+tessellation and the computation of low-level configuration parameters is
+realized by a free software library called `libpisp
+<https://github.com/raspberrypi/libpisp>`_.
+
+The full image processing pipeline, which involves capturing RAW Bayer data from
+an image sensor through a MIPI CSI-2 compatible capture interface, storing them
+in DRAM memory and processing them in the PiSP Back End to obtain images usable
+by an application is implemented in `libcamera <https://libcamera.org>`_ as
+part of the Raspberry Pi platform support.
+
+The pisp-be driver
+==================
+
+The Raspberry Pi PiSP Back End (pisp-be) driver is located under
+drivers/media/platform/raspberrypi/pisp-be. It uses the `V4L2 API` to register
+a number of video capture and output devices, the `V4L2 subdev API` to register
+a subdevice for the ISP that connects the video devices in a single media graph
+realized using the `Media Controller (MC) API`.
+
+The media topology registered by the `pisp-be` driver is represented below:
+
+.. _pips-be-topology:
+
+.. kernel-figure:: raspberrypi-pisp-be.dot
+ :alt: Diagram of the default media pipeline topology
+ :align: center
+
+
+The media graph registers the following video device nodes:
+
+- pispbe-input: output device for images to be submitted to the ISP for
+ processing.
+- pispbe-tdn_input: output device for temporal denoise.
+- pispbe-stitch_input: output device for image stitching (HDR).
+- pispbe-output0: first capture device for processed images.
+- pispbe-output1: second capture device for processed images.
+- pispbe-tdn_output: capture device for temporal denoise.
+- pispbe-stitch_output: capture device for image stitching (HDR).
+- pispbe-config: output device for ISP configuration parameters.
+
+pispbe-input
+------------
+
+Images to be processed by the ISP are queued to the `pispbe-input` output device
+node. For a list of image formats supported as input to the ISP refer to the
+`Raspberry Pi Image Signal Processor (PiSP) Specification document`_.
+
+pispbe-tdn_input, pispbe-tdn_output
+-----------------------------------
+
+The `pispbe-tdn_input` output video device receives images to be processed by
+the temporal denoise block which are captured from the `pispbe-tdn_output`
+capture video device. Userspace is responsible for maintaining queues on both
+devices, and ensuring that buffers completed on the output are queued to the
+input.
+
+pispbe-stitch_input, pispbe-stitch_output
+-----------------------------------------
+
+To realize HDR (high dynamic range) image processing the image stitching and
+tonemapping blocks are used. The `pispbe-stitch_output` writes images to memory
+and the `pispbe-stitch_input` receives the previously written frame to process
+it along with the current input image. Userspace is responsible for maintaining
+queues on both devices, and ensuring that buffers completed on the output are
+queued to the input.
+
+pispbe-output0, pispbe-output1
+------------------------------
+
+The two capture devices write to memory the pixel data as processed by the ISP.
+
+pispbe-config
+-------------
+
+The `pispbe-config` output video devices receives a buffer of configuration
+parameters that define the desired image processing to be performed by the ISP.
+
+The format of the ISP configuration parameter is defined by
+:c:type:`pisp_be_tiles_config` C structure and the meaning of each parameter is
+described in the `Raspberry Pi Image Signal Processor (PiSP) Specification
+document`_.
+
+ISP configuration
+=================
+
+The ISP configuration is described solely by the content of the parameters
+buffer. The only parameter that userspace needs to configure using the V4L2 API
+is the image format on the output and capture video devices for validation of
+the content of the parameters buffer.
+
+.. _Raspberry Pi Image Signal Processor (PiSP) Specification document: https://datasheets.raspberrypi.com/camera/raspberry-pi-image-signal-processor-specification.pdf
diff --git a/Documentation/admin-guide/media/raspberrypi-rp1-cfe.dot b/Documentation/admin-guide/media/raspberrypi-rp1-cfe.dot
new file mode 100644
index 000000000000..7717f2291049
--- /dev/null
+++ b/Documentation/admin-guide/media/raspberrypi-rp1-cfe.dot
@@ -0,0 +1,27 @@
+digraph board {
+ rankdir=TB
+ n00000001 [label="{{<port0> 0} | csi2\n/dev/v4l-subdev0 | {<port1> 1 | <port2> 2 | <port3> 3 | <port4> 4}}", shape=Mrecord, style=filled, fillcolor=green]
+ n00000001:port1 -> n00000011 [style=dashed]
+ n00000001:port1 -> n00000007:port0
+ n00000001:port2 -> n00000015
+ n00000001:port2 -> n00000007:port0 [style=dashed]
+ n00000001:port3 -> n00000019 [style=dashed]
+ n00000001:port3 -> n00000007:port0 [style=dashed]
+ n00000001:port4 -> n0000001d [style=dashed]
+ n00000001:port4 -> n00000007:port0 [style=dashed]
+ n00000007 [label="{{<port0> 0 | <port1> 1} | pisp-fe\n/dev/v4l-subdev1 | {<port2> 2 | <port3> 3 | <port4> 4}}", shape=Mrecord, style=filled, fillcolor=green]
+ n00000007:port2 -> n00000021
+ n00000007:port3 -> n00000025 [style=dashed]
+ n00000007:port4 -> n00000029
+ n0000000d [label="{imx219 6-0010\n/dev/v4l-subdev2 | {<port0> 0}}", shape=Mrecord, style=filled, fillcolor=green]
+ n0000000d:port0 -> n00000001:port0 [style=bold]
+ n00000011 [label="rp1-cfe-csi2-ch0\n/dev/video0", shape=box, style=filled, fillcolor=yellow]
+ n00000015 [label="rp1-cfe-csi2-ch1\n/dev/video1", shape=box, style=filled, fillcolor=yellow]
+ n00000019 [label="rp1-cfe-csi2-ch2\n/dev/video2", shape=box, style=filled, fillcolor=yellow]
+ n0000001d [label="rp1-cfe-csi2-ch3\n/dev/video3", shape=box, style=filled, fillcolor=yellow]
+ n00000021 [label="rp1-cfe-fe-image0\n/dev/video4", shape=box, style=filled, fillcolor=yellow]
+ n00000025 [label="rp1-cfe-fe-image1\n/dev/video5", shape=box, style=filled, fillcolor=yellow]
+ n00000029 [label="rp1-cfe-fe-stats\n/dev/video6", shape=box, style=filled, fillcolor=yellow]
+ n0000002d [label="rp1-cfe-fe-config\n/dev/video7", shape=box, style=filled, fillcolor=yellow]
+ n0000002d -> n00000007:port1
+}
diff --git a/Documentation/admin-guide/media/raspberrypi-rp1-cfe.rst b/Documentation/admin-guide/media/raspberrypi-rp1-cfe.rst
new file mode 100644
index 000000000000..668d978a9875
--- /dev/null
+++ b/Documentation/admin-guide/media/raspberrypi-rp1-cfe.rst
@@ -0,0 +1,78 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+============================================
+Raspberry Pi PiSP Camera Front End (rp1-cfe)
+============================================
+
+The PiSP Camera Front End
+=========================
+
+The PiSP Camera Front End (CFE) is a module which combines a CSI-2 receiver with
+a simple ISP, called the Front End (FE).
+
+The CFE has four DMA engines and can write frames from four separate streams
+received from the CSI-2 to the memory. One of those streams can also be routed
+directly to the FE, which can do minimal image processing, write two versions
+(e.g. non-scaled and downscaled versions) of the received frames to memory and
+provide statistics of the received frames.
+
+The FE registers are documented in the `Raspberry Pi Image Signal Processor
+(ISP) Specification document
+<https://datasheets.raspberrypi.com/camera/raspberry-pi-image-signal-processor-specification.pdf>`_,
+and example code for FE can be found in `libpisp
+<https://github.com/raspberrypi/libpisp>`_.
+
+The rp1-cfe driver
+==================
+
+The Raspberry Pi PiSP Camera Front End (rp1-cfe) driver is located under
+drivers/media/platform/raspberrypi/rp1-cfe. It uses the `V4L2 API` to register
+a number of video capture and output devices, the `V4L2 subdev API` to register
+subdevices for the CSI-2 received and the FE that connects the video devices in
+a single media graph realized using the `Media Controller (MC) API`.
+
+The media topology registered by the `rp1-cfe` driver, in this particular
+example connected to an imx219 sensor, is the following one:
+
+.. _rp1-cfe-topology:
+
+.. kernel-figure:: raspberrypi-rp1-cfe.dot
+ :alt: Diagram of an example media pipeline topology
+ :align: center
+
+The media graph contains the following video device nodes:
+
+- rp1-cfe-csi2-ch0: capture device for the first CSI-2 stream
+- rp1-cfe-csi2-ch1: capture device for the second CSI-2 stream
+- rp1-cfe-csi2-ch2: capture device for the third CSI-2 stream
+- rp1-cfe-csi2-ch3: capture device for the fourth CSI-2 stream
+- rp1-cfe-fe-image0: capture device for the first FE output
+- rp1-cfe-fe-image1: capture device for the second FE output
+- rp1-cfe-fe-stats: capture device for the FE statistics
+- rp1-cfe-fe-config: output device for FE configuration
+
+rp1-cfe-csi2-chX
+----------------
+
+The rp1-cfe-csi2-chX capture devices are normal V4L2 capture devices which
+can be used to capture video frames or metadata received from the CSI-2.
+
+rp1-cfe-fe-image0, rp1-cfe-fe-image1
+------------------------------------
+
+The rp1-cfe-fe-image0 and rp1-cfe-fe-image1 capture devices are used to write
+the processed frames to memory.
+
+rp1-cfe-fe-stats
+----------------
+
+The format of the FE statistics buffer is defined by
+:c:type:`pisp_statistics` C structure and the meaning of each parameter is
+described in the `PiSP specification` document.
+
+rp1-cfe-fe-config
+-----------------
+
+The format of the FE configuration buffer is defined by
+:c:type:`pisp_fe_config` C structure and the meaning of each parameter is
+described in the `PiSP specification` document.
diff --git a/Documentation/admin-guide/media/rkcif-rk3568-vicap.dot b/Documentation/admin-guide/media/rkcif-rk3568-vicap.dot
new file mode 100644
index 000000000000..3fac59335459
--- /dev/null
+++ b/Documentation/admin-guide/media/rkcif-rk3568-vicap.dot
@@ -0,0 +1,8 @@
+digraph board {
+ rankdir=TB
+ n00000001 [label="{{<port0> 0} | rkcif-dvp0\n/dev/v4l-subdev0 | {<port1> 1}}", shape=Mrecord, style=filled, fillcolor=green]
+ n00000001:port1 -> n00000004
+ n00000004 [label="rkcif-dvp0-id0\n/dev/video0", shape=box, style=filled, fillcolor=yellow]
+ n00000025 [label="{{} | it6801 2-0048\n/dev/v4l-subdev1 | {<port0> 0}}", shape=Mrecord, style=filled, fillcolor=green]
+ n00000025:port0 -> n00000001:port0
+}
diff --git a/Documentation/admin-guide/media/rkcif.rst b/Documentation/admin-guide/media/rkcif.rst
new file mode 100644
index 000000000000..2558c121abc4
--- /dev/null
+++ b/Documentation/admin-guide/media/rkcif.rst
@@ -0,0 +1,79 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=========================================
+Rockchip Camera Interface (CIF)
+=========================================
+
+Introduction
+============
+
+The Rockchip Camera Interface (CIF) is featured in many Rockchip SoCs in
+different variants.
+The different variants are combinations of common building blocks, such as
+
+* INTERFACE blocks of different types, namely
+
+ * the Digital Video Port (DVP, a parallel data interface)
+ * the interface block for the MIPI CSI-2 receiver
+
+* CROP units
+
+* MIPI CSI-2 receiver (not available on all variants): This unit is referred
+ to as MIPI CSI HOST in the Rockchip documentation.
+ Technically, it is a separate hardware block, but it is strongly coupled to
+ the CIF and therefore included here.
+
+* MUX units (not available on all variants) that pass the video data to an
+ image signal processor (ISP)
+
+* SCALE units (not available on all variants)
+
+* DMA engines that transfer video data into system memory using a
+ double-buffering mechanism called ping-pong mode
+
+* Support for four streams per INTERFACE block (not available on all
+ variants), e.g., for MIPI CSI-2 Virtual Channels (VCs)
+
+This document describes the different variants of the CIF, their hardware
+layout, as well as their representation in the media controller centric rkcif
+device driver, which is located under drivers/media/platform/rockchip/rkcif.
+
+Variants
+========
+
+Rockchip PX30 Video Input Processor (VIP)
+-----------------------------------------
+
+The PX30 Video Input Processor (VIP) features a digital video port that accepts
+parallel video data or BT.656.
+Since these protocols do not feature multiple streams, the VIP has one DMA
+engine that transfers the input video data into system memory.
+
+The rkcif driver represents this hardware variant by exposing one V4L2 subdevice
+(the DVP INTERFACE/CROP block) and one V4L2 device (the DVP DMA engine).
+
+Rockchip RK3568 Video Capture (VICAP)
+-------------------------------------
+
+The RK3568 Video Capture (VICAP) unit features a digital video port and a MIPI
+CSI-2 receiver that can receive video data independently.
+The DVP accepts parallel video data, BT.656 and BT.1120.
+Since the BT.1120 protocol may feature more than one stream, the RK3568 VICAP
+DVP features four DMA engines that can capture different streams.
+Similarly, the RK3568 VICAP MIPI CSI-2 receiver features four DMA engines to
+handle different Virtual Channels (VCs).
+
+The rkcif driver represents this hardware variant by exposing up the following
+V4L2 subdevices:
+
+* rkcif-dvp0: INTERFACE/CROP block for the DVP
+
+and the following video devices:
+
+* rkcif-dvp0-id0: The support for multiple streams on the DVP is not yet
+ implemented, as it is hard to find test hardware. Thus, this video device
+ represents the first DMA engine of the RK3568 DVP.
+
+.. kernel-figure:: rkcif-rk3568-vicap.dot
+ :alt: Topology of the RK3568 Video Capture (VICAP) unit
+ :align: center
diff --git a/Documentation/admin-guide/media/rkisp1.rst b/Documentation/admin-guide/media/rkisp1.rst
index ccf418713623..6c878c71442f 100644
--- a/Documentation/admin-guide/media/rkisp1.rst
+++ b/Documentation/admin-guide/media/rkisp1.rst
@@ -10,8 +10,8 @@ Introduction
============
This file documents the driver for the Rockchip ISP1 that is part of RK3288
-and RK3399 SoCs. The driver is located under drivers/staging/media/rkisp1
-and uses the Media-Controller API.
+and RK3399 SoCs. The driver is located under drivers/media/platform/rockchip/
+rkisp1 and uses the Media-Controller API.
Revisions
=========
@@ -114,11 +114,18 @@ to be applied to the hardware during a video stream, allowing userspace
to dynamically modify values such as black level, cross talk corrections
and others.
-The buffer format is defined by struct :c:type:`rkisp1_params_cfg`, and
-userspace should set
+The ISP driver supports two different parameters configuration methods, the
+`fixed parameters format` or the `extensible parameters format`.
+
+When using the `fixed parameters` method the buffer format is defined by struct
+:c:type:`rkisp1_params_cfg`, and userspace should set
:ref:`V4L2_META_FMT_RK_ISP1_PARAMS <v4l2-meta-fmt-rk-isp1-params>` as the
dataformat.
+When using the `extensible parameters` method the buffer format is defined by
+struct :c:type:`rkisp1_ext_params_cfg`, and userspace should set
+:ref:`V4L2_META_FMT_RK_ISP1_EXT_PARAMS <v4l2-meta-fmt-rk-isp1-ext-params>` as
+the dataformat.
Capturing Video Frames Example
==============================
diff --git a/Documentation/admin-guide/media/saa7134.rst b/Documentation/admin-guide/media/saa7134.rst
index 51eae7eb5ab7..18d7cbc897db 100644
--- a/Documentation/admin-guide/media/saa7134.rst
+++ b/Documentation/admin-guide/media/saa7134.rst
@@ -67,7 +67,7 @@ Changes / Fixes
Please mail to linux-media AT vger.kernel.org unified diffs against
the linux media git tree:
- https://git.linuxtv.org/media_tree.git/
+ https://git.linuxtv.org/media.git/
This is done by committing a patch at a clone of the git tree and
submitting the patch using ``git send-email``. Don't forget to
diff --git a/Documentation/admin-guide/media/si4713.rst b/Documentation/admin-guide/media/si4713.rst
index be8e6b49b7b4..85dcf1cd2df8 100644
--- a/Documentation/admin-guide/media/si4713.rst
+++ b/Documentation/admin-guide/media/si4713.rst
@@ -13,7 +13,7 @@ Contact: Eduardo Valentin <eduardo.valentin@nokia.com>
Information about the Device
----------------------------
-This chip is a Silicon Labs product. It is a I2C device, currently on 0x63 address.
+This chip is a Silicon Labs product. It is an I2C device, currently on 0x63 address.
Basically, it has transmission and signal noise level measurement features.
The Si4713 integrates transmit functions for FM broadcast stereo transmission.
@@ -28,7 +28,7 @@ Users must comply with local regulations on radio frequency (RF) transmission.
Device driver description
-------------------------
-There are two modules to handle this device. One is a I2C device driver
+There are two modules to handle this device. One is an I2C device driver
and the other is a platform driver.
The I2C device driver exports a v4l2-subdev interface to the kernel.
@@ -113,7 +113,7 @@ Here is a summary of them:
- acomp_attack_time - Sets the attack time for audio dynamic range control.
- acomp_release_time - Sets the release time for audio dynamic range control.
-* Limiter setups audio deviation limiter feature. Once a over deviation occurs,
+* Limiter sets up the audio deviation limiter feature. Once an over deviation occurs,
it is possible to adjust the front-end gain of the audio input and always
prevent over deviation.
diff --git a/Documentation/admin-guide/media/starfive_camss.rst b/Documentation/admin-guide/media/starfive_camss.rst
new file mode 100644
index 000000000000..ca42e9447c47
--- /dev/null
+++ b/Documentation/admin-guide/media/starfive_camss.rst
@@ -0,0 +1,72 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+.. include:: <isonum.txt>
+
+================================
+Starfive Camera Subsystem driver
+================================
+
+Introduction
+------------
+
+This file documents the driver for the Starfive Camera Subsystem found on
+Starfive JH7110 SoC. The driver is located under drivers/staging/media/starfive/
+camss.
+
+The driver implements V4L2, Media controller and v4l2_subdev interfaces. Camera
+sensor using V4L2 subdev interface in the kernel is supported.
+
+The driver has been successfully used on the Gstreamer 1.18.5 with v4l2src
+plugin.
+
+
+Starfive Camera Subsystem hardware
+----------------------------------
+
+The Starfive Camera Subsystem hardware consists of::
+
+ |\ +---------------+ +-----------+
+ +----------+ | \ | | | |
+ | | | | | | | |
+ | MIPI |----->| |----->| ISP |----->| |
+ | | | | | | | |
+ +----------+ | | | | | Memory |
+ |MUX| +---------------+ | Interface |
+ +----------+ | | | |
+ | | | |---------------------------->| |
+ | Parallel |----->| | | |
+ | | | | | |
+ +----------+ | / | |
+ |/ +-----------+
+
+- MIPI: The MIPI interface, receiving data from a MIPI CSI-2 camera sensor.
+
+- Parallel: The parallel interface, receiving data from a parallel sensor.
+
+- ISP: The ISP, processing raw Bayer data from an image sensor and producing
+ YUV frames.
+
+
+Topology
+--------
+
+The media controller pipeline graph is as follows:
+
+.. _starfive_camss_graph:
+
+.. kernel-figure:: starfive_camss_graph.dot
+ :alt: starfive_camss_graph.dot
+ :align: center
+
+The driver has 2 video devices:
+
+- capture_raw: The capture device, capturing image data directly from a sensor.
+- capture_yuv: The capture device, capturing YUV frame data processed by the
+ ISP module
+
+The driver has 3 subdevices:
+
+- stf_isp: is responsible for all the isp operations, outputs YUV frames.
+- cdns_csi2rx: a CSI-2 bridge supporting up to 4 CSI lanes in input, and 4
+ different pixel streams in output.
+- imx219: an image sensor, image data is sent through MIPI CSI-2.
diff --git a/Documentation/admin-guide/media/starfive_camss_graph.dot b/Documentation/admin-guide/media/starfive_camss_graph.dot
new file mode 100644
index 000000000000..8eff1f161ac7
--- /dev/null
+++ b/Documentation/admin-guide/media/starfive_camss_graph.dot
@@ -0,0 +1,12 @@
+digraph board {
+ rankdir=TB
+ n00000001 [label="{{<port0> 0} | stf_isp\n/dev/v4l-subdev0 | {<port1> 1}}", shape=Mrecord, style=filled, fillcolor=green]
+ n00000001:port1 -> n00000008 [style=dashed]
+ n00000004 [label="capture_raw\n/dev/video0", shape=box, style=filled, fillcolor=yellow]
+ n00000008 [label="capture_yuv\n/dev/video1", shape=box, style=filled, fillcolor=yellow]
+ n0000000e [label="{{<port0> 0} | cdns_csi2rx.19800000.csi-bridge\n | {<port1> 1 | <port2> 2 | <port3> 3 | <port4> 4}}", shape=Mrecord, style=filled, fillcolor=green]
+ n0000000e:port1 -> n00000001:port0 [style=dashed]
+ n0000000e:port1 -> n00000004 [style=dashed]
+ n00000018 [label="{{} | imx219 6-0010\n/dev/v4l-subdev1 | {<port0> 0}}", shape=Mrecord, style=filled, fillcolor=green]
+ n00000018:port0 -> n0000000e:port0 [style=bold]
+}
diff --git a/Documentation/admin-guide/media/tuner-cardlist.rst b/Documentation/admin-guide/media/tuner-cardlist.rst
index 362617c59c5d..65ecf48ddf24 100644
--- a/Documentation/admin-guide/media/tuner-cardlist.rst
+++ b/Documentation/admin-guide/media/tuner-cardlist.rst
@@ -97,4 +97,6 @@ Tuner number Card name
89 Sony BTF-PG472Z PAL/SECAM
90 Sony BTF-PK467Z NTSC-M-JP
91 Sony BTF-PB463Z NTSC-M
+92 Silicon Labs Si2157 tuner
+93 Tena TNF931D-DFDR1
============ =====================================================
diff --git a/Documentation/admin-guide/media/v4l-drivers.rst b/Documentation/admin-guide/media/v4l-drivers.rst
index 1c41f87c3917..393f83e8dc4d 100644
--- a/Documentation/admin-guide/media/v4l-drivers.rst
+++ b/Documentation/admin-guide/media/v4l-drivers.rst
@@ -10,23 +10,30 @@ Video4Linux (V4L) driver-specific documentation
:maxdepth: 2
bttv
+ c3-isp
cafe_ccic
cx88
fimc
imx
imx7
ipu3
+ ipu6-isys
ivtv
+ mali-c55
+ mgb4
omap3isp
- omap4_camera
philips
qcom_camss
+ raspberrypi-pisp-be
rcar-fdp1
+ rkcif
rkisp1
+ raspberrypi-rp1-cfe
saa7134
si470x
si4713
si476x
+ starfive_camss
vimc
visl
vivid
diff --git a/Documentation/admin-guide/media/visl.rst b/Documentation/admin-guide/media/visl.rst
index 7d2dc78341c9..cd45145cde68 100644
--- a/Documentation/admin-guide/media/visl.rst
+++ b/Documentation/admin-guide/media/visl.rst
@@ -49,6 +49,10 @@ Module parameters
visl_dprintk_frame_start, visl_dprintk_nframes, but controls the dumping of
buffer data through debugfs instead.
+- tpg_verbose: Write extra information on each output frame to ease debugging
+ the API. When set to true, the output frames are not stable for a given input
+ as some information like pointers or queue status will be added to them.
+
What is the default use case for this driver?
---------------------------------------------
@@ -57,8 +61,12 @@ This assumes that a working client is run against visl and that the ftrace and
OUTPUT buffer data is subsequently used to debug a work-in-progress
implementation.
-Information on reference frames, their timestamps, the status of the OUTPUT and
-CAPTURE queues and more can be read directly from the CAPTURE buffers.
+Even though no video decoding is actually done, the output frames can be used
+against a reference for a given input, except if tpg_verbose is set to true.
+
+Depending on the tpg_verbose parameter value, information on reference frames,
+their timestamps, the status of the OUTPUT and CAPTURE queues and more can be
+read directly from the CAPTURE buffers.
Supported codecs
----------------
@@ -71,6 +79,7 @@ The following codecs are supported:
- VP9
- H.264
- HEVC
+- AV1
visl trace events
-----------------
@@ -78,7 +87,8 @@ The trace events are defined on a per-codec basis, e.g.:
.. code-block:: bash
- $ ls /sys/kernel/debug/tracing/events/ | grep visl
+ $ ls /sys/kernel/tracing/events/ | grep visl
+ visl_av1_controls
visl_fwht_controls
visl_h264_controls
visl_hevc_controls
@@ -90,13 +100,13 @@ For example, in order to dump HEVC SPS data:
.. code-block:: bash
- $ echo 1 > /sys/kernel/debug/tracing/events/visl_hevc_controls/v4l2_ctrl_hevc_sps/enable
+ $ echo 1 > /sys/kernel/tracing/events/visl_hevc_controls/v4l2_ctrl_hevc_sps/enable
The SPS data will be dumped to the trace buffer, i.e.:
.. code-block:: bash
- $ cat /sys/kernel/debug/tracing/trace
+ $ cat /sys/kernel/tracing/trace
video_parameter_set_id 0
seq_parameter_set_id 0
pic_width_in_luma_samples 1920
diff --git a/Documentation/admin-guide/media/vivid.rst b/Documentation/admin-guide/media/vivid.rst
index 58ac25b2c385..034ca7c77fb9 100644
--- a/Documentation/admin-guide/media/vivid.rst
+++ b/Documentation/admin-guide/media/vivid.rst
@@ -60,7 +60,7 @@ all configurable using the following module options:
- node_types:
which devices should each driver instance create. An array of
- hexadecimal values, one for each instance. The default is 0x1d3d.
+ hexadecimal values, one for each instance. The default is 0xe1d3d.
Each value is a bitmask with the following meaning:
- bit 0: Video Capture node
@@ -302,6 +302,15 @@ all configurable using the following module options:
- 0: forbid hints
- 1: allow hints
+- supports_requests:
+
+ specifies if the device should support the Request API. There are
+ three possible values, default is 1:
+
+ - 0: no request
+ - 1: supports requests
+ - 2: requires requests
+
Taken together, all these module options allow you to precisely customize
the driver behavior and test your application with all sorts of permutations.
It is also very suitable to emulate hardware that is not yet available, e.g.
@@ -313,13 +322,13 @@ Video Capture
This is probably the most frequently used feature. The video capture device
can be configured by using the module options num_inputs, input_types and
-ccs_cap_mode (see section 1 for more detailed information), but by default
-four inputs are configured: a webcam, a TV tuner, an S-Video and an HDMI
-input, one input for each input type. Those are described in more detail
-below.
+ccs_cap_mode (see "Configuring the driver" for more detailed information),
+but by default four inputs are configured: a webcam, a TV tuner, an S-Video
+and an HDMI input, one input for each input type. Those are described in more
+detail below.
Special attention has been given to the rate at which new frames become
-available. The jitter will be around 1 jiffie (that depends on the HZ
+available. The jitter will be around 1 jiffy (that depends on the HZ
configuration of your kernel, so usually 1/100, 1/250 or 1/1000 of a second),
but the long-term behavior is exactly following the framerate. So a
framerate of 59.94 Hz is really different from 60 Hz. If the framerate
@@ -434,10 +443,10 @@ Video Output
------------
The video output device can be configured by using the module options
-num_outputs, output_types and ccs_out_mode (see section 1 for more detailed
-information), but by default two outputs are configured: an S-Video and an
-HDMI input, one output for each output type. Those are described in more detail
-below.
+num_outputs, output_types and ccs_out_mode (see "Configuring the driver"
+for more detailed information), but by default two outputs are configured:
+an S-Video and an HDMI input, one output for each output type. Those are
+described in more detail below.
Like with video capture the framerate is also exact in the long term.
@@ -1011,11 +1020,6 @@ Digital Video Controls
affects the reported colorspace since DVI_D outputs will always use
sRGB.
-- Display Present:
-
- sets the presence of a "display" on the HDMI output. This affects
- the tx_edid_present, tx_hotplug and tx_rxsense controls.
-
FM Radio Receiver Controls
~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -1130,35 +1134,34 @@ Metadata Capture Controls
if set, then the generated metadata stream contains Source Clock information.
-Video, VBI and RDS Looping
---------------------------
-The vivid driver supports looping of video output to video input, VBI output
-to VBI input and RDS output to RDS input. For video/VBI looping this emulates
-as if a cable was hooked up between the output and input connector. So video
-and VBI looping is only supported between S-Video and HDMI inputs and outputs.
-VBI is only valid for S-Video as it makes no sense for HDMI.
+Video, Sliced VBI and HDMI CEC Looping
+--------------------------------------
-Since radio is wireless this looping always happens if the radio receiver
-frequency is close to the radio transmitter frequency. In that case the radio
-transmitter will 'override' the emulated radio stations.
-
-Looping is currently supported only between devices created by the same
-vivid driver instance.
+Video Looping functionality is supported for devices created by the same
+vivid driver instance, as well as across multiple instances of the vivid driver.
+The vivid driver supports looping of video and Sliced VBI data between an S-Video output
+and an S-Video input. It also supports looping of video and HDMI CEC data between an
+HDMI output and an HDMI input.
+To enable looping, set the 'HDMI/S-Video XXX-N Is Connected To' control(s) to select
+whether an input uses the Test Pattern Generator, or is disconnected, or is connected
+to an output. An input can be connected to an output from any vivid instance.
+The inputs and outputs are numbered XXX-N where XXX is the vivid instance number
+(see module option n_devs). If there is only one vivid instance (the default), then
+XXX will be 000. And N is the Nth S-Video/HDMI input or output of that instance.
+If vivid is loaded without module options, then you can connect the S-Video 000-0 input
+to the S-Video 000-0 output, or the HDMI 000-0 input to the HDMI 000-0 output.
+This is the equivalent of connecting or disconnecting a cable between an input and an
+output in a physical device.
-Video and Sliced VBI looping
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+If an 'HDMI/S-Video XXX-N Is Connected To' control selected an output, then the video
+output will be looped to the video input provided that:
-The way to enable video/VBI looping is currently fairly crude. A 'Loop Video'
-control is available in the "Vivid" control class of the video
-capture and VBI capture devices. When checked the video looping will be enabled.
-Once enabled any video S-Video or HDMI input will show a static test pattern
-until the video output has started. At that time the video output will be
-looped to the video input provided that:
+- the currently selected input matches the input indicated by the control name.
-- the input type matches the output type. So the HDMI input cannot receive
- video from the S-Video output.
+- in the vivid instance of the output connector, the currently selected output matches
+ the output indicated by the control's value.
- the video resolution of the video input must match that of the video output.
So it is not possible to loop a 50 Hz (720x576) S-Video output to a 60 Hz
@@ -1185,6 +1188,8 @@ looped to the video input provided that:
"DV Timings Signal Mode" for the HDMI input should be configured so that a
valid signal is passed to the video input.
+If any condition is not valid, then the 'Noise' test pattern is shown.
+
The framerates do not have to match, although this might change in the future.
By default you will see the OSD text superimposed on top of the looped video.
@@ -1198,17 +1203,26 @@ and WSS (50 Hz formats) VBI data is looped. Teletext VBI data is not looped.
Radio & RDS Looping
-~~~~~~~~~~~~~~~~~~~
-
-As mentioned in section 6 the radio receiver emulates stations are regular
-frequency intervals. Depending on the frequency of the radio receiver a
-signal strength value is calculated (this is returned by VIDIOC_G_TUNER).
-However, it will also look at the frequency set by the radio transmitter and
-if that results in a higher signal strength than the settings of the radio
-transmitter will be used as if it was a valid station. This also includes
-the RDS data (if any) that the transmitter 'transmits'. This is received
-faithfully on the receiver side. Note that when the driver is loaded the
-frequencies of the radio receiver and transmitter are not identical, so
+-------------------
+
+The vivid driver supports looping of RDS output to RDS input.
+
+Since radio is wireless this looping always happens if the radio receiver
+frequency is close to the radio transmitter frequency. In that case the radio
+transmitter will 'override' the emulated radio stations.
+
+RDS looping is currently supported only between devices created by the same
+vivid driver instance.
+
+As mentioned in the "Radio Receiver" section, the radio receiver emulates
+stations at regular frequency intervals. Depending on the frequency of the
+radio receiver a signal strength value is calculated (this is returned by
+VIDIOC_G_TUNER). However, it will also look at the frequency set by the radio
+transmitter and if that results in a higher signal strength than the settings
+of the radio transmitter will be used as if it was a valid station. This also
+includes the RDS data (if any) that the transmitter 'transmits'. This is
+received faithfully on the receiver side. Note that when the driver is loaded
+the frequencies of the radio receiver and transmitter are not identical, so
initially no looping takes place.
@@ -1218,8 +1232,8 @@ Cropping, Composing, Scaling
This driver supports cropping, composing and scaling in any combination. Normally
which features are supported can be selected through the Vivid controls,
but it is also possible to hardcode it when the module is loaded through the
-ccs_cap_mode and ccs_out_mode module options. See section 1 on the details of
-these module options.
+ccs_cap_mode and ccs_out_mode module options. See "Configuring the driver" on
+the details of these module options.
This allows you to test your application for all these variations.
@@ -1260,7 +1274,8 @@ is set, then the alpha component is only used for the color red and set to
The driver has to be configured to support the multiplanar formats. By default
the driver instances are single-planar. This can be changed by setting the
-multiplanar module option, see section 1 for more details on that option.
+multiplanar module option, see "Configuring the driver" for more details on that
+option.
If the driver instance is using the multiplanar formats/API, then the first
single planar format (YUYV) and the multiplanar NV16M and NV61M formats the
@@ -1270,74 +1285,6 @@ data_offset to be non-zero, so this is a useful feature for testing applications
Video output will also honor any data_offset that the application set.
-Capture Overlay
----------------
-
-Note: capture overlay support is implemented primarily to test the existing
-V4L2 capture overlay API. In practice few if any GPUs support such overlays
-anymore, and neither are they generally needed anymore since modern hardware
-is so much more capable. By setting flag 0x10000 in the node_types module
-option the vivid driver will create a simple framebuffer device that can be
-used for testing this API. Whether this API should be used for new drivers is
-questionable.
-
-This driver has support for a destructive capture overlay with bitmap clipping
-and list clipping (up to 16 rectangles) capabilities. Overlays are not
-supported for multiplanar formats. It also honors the struct v4l2_window field
-setting: if it is set to FIELD_TOP or FIELD_BOTTOM and the capture setting is
-FIELD_ALTERNATE, then only the top or bottom fields will be copied to the overlay.
-
-The overlay only works if you are also capturing at that same time. This is a
-vivid limitation since it copies from a buffer to the overlay instead of
-filling the overlay directly. And if you are not capturing, then no buffers
-are available to fill.
-
-In addition, the pixelformat of the capture format and that of the framebuffer
-must be the same for the overlay to work. Otherwise VIDIOC_OVERLAY will return
-an error.
-
-In order to really see what it going on you will need to create two vivid
-instances: the first with a framebuffer enabled. You configure the capture
-overlay of the second instance to use the framebuffer of the first, then
-you start capturing in the second instance. For the first instance you setup
-the output overlay for the video output, turn on video looping and capture
-to see the blended framebuffer overlay that's being written to by the second
-instance. This setup would require the following commands:
-
-.. code-block:: none
-
- $ sudo modprobe vivid n_devs=2 node_types=0x10101,0x1
- $ v4l2-ctl -d1 --find-fb
- /dev/fb1 is the framebuffer associated with base address 0x12800000
- $ sudo v4l2-ctl -d2 --set-fbuf fb=1
- $ v4l2-ctl -d1 --set-fbuf fb=1
- $ v4l2-ctl -d0 --set-fmt-video=pixelformat='AR15'
- $ v4l2-ctl -d1 --set-fmt-video-out=pixelformat='AR15'
- $ v4l2-ctl -d2 --set-fmt-video=pixelformat='AR15'
- $ v4l2-ctl -d0 -i2
- $ v4l2-ctl -d2 -i2
- $ v4l2-ctl -d2 -c horizontal_movement=4
- $ v4l2-ctl -d1 --overlay=1
- $ v4l2-ctl -d0 -c loop_video=1
- $ v4l2-ctl -d2 --stream-mmap --overlay=1
-
-And from another console:
-
-.. code-block:: none
-
- $ v4l2-ctl -d1 --stream-out-mmap
-
-And yet another console:
-
-.. code-block:: none
-
- $ qv4l2
-
-and start streaming.
-
-As you can see, this is not for the faint of heart...
-
-
Output Overlay
--------------
@@ -1396,7 +1343,7 @@ Some Future Improvements
Just as a reminder and in no particular order:
- Add a virtual alsa driver to test audio
-- Add virtual sub-devices and media controller support
+- Add virtual sub-devices
- Some support for testing compressed video
- Add support to loop raw VBI output to raw VBI input
- Add support to loop teletext sliced VBI output to VBI input
@@ -1405,12 +1352,10 @@ Just as a reminder and in no particular order:
- Add ARGB888 overlay support: better testing of the alpha channel
- Improve pixel aspect support in the tpg code by passing a real v4l2_fract
- Use per-queue locks and/or per-device locks to improve throughput
-- Add support to loop from a specific output to a specific input across
- vivid instances
- The SDR radio should use the same 'frequencies' for stations as the normal
radio receiver, and give back noise if the frequency doesn't match up with
a station frequency
- Make a thread for the RDS generation, that would help in particular for the
"Controls" RDS Rx I/O Mode as the read-only RDS controls could be updated
in real-time.
-- Changing the EDID should cause hotplug detect emulation to happen.
+- Changing the EDID doesn't wait 100 ms before setting the HPD signal.
diff --git a/Documentation/admin-guide/mm/cma_debugfs.rst b/Documentation/admin-guide/mm/cma_debugfs.rst
index 7367e6294ef6..4120e9cb0cd5 100644
--- a/Documentation/admin-guide/mm/cma_debugfs.rst
+++ b/Documentation/admin-guide/mm/cma_debugfs.rst
@@ -12,10 +12,16 @@ its CMA name like below:
The structure of the files created under that directory is as follows:
- - [RO] base_pfn: The base PFN (Page Frame Number) of the zone.
+ - [RO] base_pfn: The base PFN (Page Frame Number) of the CMA area.
+ This is the same as ranges/0/base_pfn.
- [RO] count: Amount of memory in the CMA area.
- [RO] order_per_bit: Order of pages represented by one bit.
- - [RO] bitmap: The bitmap of page states in the zone.
+ - [RO] bitmap: The bitmap of allocated pages in the area.
+ This is the same as ranges/0/base_pfn.
+ - [RO] ranges/N/base_pfn: The base PFN of contiguous range N
+ in the CMA area.
+ - [RO] ranges/N/bitmap: The bit map of allocated pages in
+ range N in the CMA area.
- [WO] alloc: Allocate N pages from that CMA area. For example::
echo 5 > <debugfs>/cma/<cma_name>/alloc
diff --git a/Documentation/admin-guide/mm/damon/index.rst b/Documentation/admin-guide/mm/damon/index.rst
index 33d37bb2fb4e..3ce3164480c7 100644
--- a/Documentation/admin-guide/mm/damon/index.rst
+++ b/Documentation/admin-guide/mm/damon/index.rst
@@ -1,12 +1,11 @@
.. SPDX-License-Identifier: GPL-2.0
-==========================
-DAMON: Data Access MONitor
-==========================
+================================================================
+DAMON: Data Access MONitoring and Access-aware System Operations
+================================================================
-:doc:`DAMON </mm/damon/index>` allows light-weight data access monitoring.
-Using DAMON, users can analyze the memory access patterns of their systems and
-optimize those.
+:doc:`DAMON </mm/damon/index>` is a Linux kernel subsystem for efficient data
+access monitoring and access-aware system operations.
.. toctree::
:maxdepth: 2
@@ -15,3 +14,4 @@ optimize those.
usage
reclaim
lru_sort
+ stat
diff --git a/Documentation/admin-guide/mm/damon/lru_sort.rst b/Documentation/admin-guide/mm/damon/lru_sort.rst
index 7b0775d281b4..72a943202676 100644
--- a/Documentation/admin-guide/mm/damon/lru_sort.rst
+++ b/Documentation/admin-guide/mm/damon/lru_sort.rst
@@ -211,6 +211,28 @@ End of target memory region in physical address.
The end physical address of memory region that DAMON_LRU_SORT will do work
against. By default, biggest System RAM is used as the region.
+addr_unit
+---------
+
+A scale factor for memory addresses and bytes.
+
+This parameter is for setting and getting the :ref:`address unit
+<damon_design_addr_unit>` parameter of the DAMON instance for DAMON_RECLAIM.
+
+``monitor_region_start`` and ``monitor_region_end`` should be provided in this
+unit. For example, let's suppose ``addr_unit``, ``monitor_region_start`` and
+``monitor_region_end`` are set as ``1024``, ``0`` and ``10``, respectively.
+Then DAMON_LRU_SORT will work for 10 KiB length of physical address range that
+starts from address zero (``[0 * 1024, 10 * 1024)`` in bytes).
+
+Stat parameters having ``bytes_`` prefix are also in this unit. For example,
+let's suppose values of ``addr_unit``, ``bytes_lru_sort_tried_hot_regions`` and
+``bytes_lru_sorted_hot_regions`` are ``1024``, ``42``, and ``32``,
+respectively. Then it means DAMON_LRU_SORT tried to LRU-sort 42 KiB of hot
+memory and successfully LRU-sorted 32 KiB of the memory in total.
+
+If unsure, use only the default value (``1``) and forget about this.
+
kdamond_pid
-----------
diff --git a/Documentation/admin-guide/mm/damon/reclaim.rst b/Documentation/admin-guide/mm/damon/reclaim.rst
index 343e25b252f4..8eba3da8dcee 100644
--- a/Documentation/admin-guide/mm/damon/reclaim.rst
+++ b/Documentation/admin-guide/mm/damon/reclaim.rst
@@ -117,6 +117,33 @@ milliseconds.
1 second by default.
+quota_mem_pressure_us
+---------------------
+
+Desired level of memory pressure-stall time in microseconds.
+
+While keeping the caps that set by other quotas, DAMON_RECLAIM automatically
+increases and decreases the effective level of the quota aiming this level of
+memory pressure is incurred. System-wide ``some`` memory PSI in microseconds
+per quota reset interval (``quota_reset_interval_ms``) is collected and
+compared to this value to see if the aim is satisfied. Value zero means
+disabling this auto-tuning feature.
+
+Disabled by default.
+
+quota_autotune_feedback
+-----------------------
+
+User-specifiable feedback for auto-tuning of the effective quota.
+
+While keeping the caps that set by other quotas, DAMON_RECLAIM automatically
+increases and decreases the effective level of the quota aiming receiving this
+feedback of value ``10,000`` from the user. DAMON_RECLAIM assumes the feedback
+value and the quota are positively proportional. Value zero means disabling
+this auto-tuning feature.
+
+Disabled by default.
+
wmarks_interval
---------------
@@ -205,6 +232,28 @@ The end physical address of memory region that DAMON_RECLAIM will do work
against. That is, DAMON_RECLAIM will find cold memory regions in this region
and reclaims. By default, biggest System RAM is used as the region.
+addr_unit
+---------
+
+A scale factor for memory addresses and bytes.
+
+This parameter is for setting and getting the :ref:`address unit
+<damon_design_addr_unit>` parameter of the DAMON instance for DAMON_RECLAIM.
+
+``monitor_region_start`` and ``monitor_region_end`` should be provided in this
+unit. For example, let's suppose ``addr_unit``, ``monitor_region_start`` and
+``monitor_region_end`` are set as ``1024``, ``0`` and ``10``, respectively.
+Then DAMON_RECLAIM will work for 10 KiB length of physical address range that
+starts from address zero (``[0 * 1024, 10 * 1024)`` in bytes).
+
+``bytes_reclaim_tried_regions`` and ``bytes_reclaimed_regions`` are also in
+this unit. For example, let's suppose values of ``addr_unit``,
+``bytes_reclaim_tried_regions`` and ``bytes_reclaimed_regions`` are ``1024``,
+``42``, and ``32``, respectively. Then it means DAMON_RECLAIM tried to reclaim
+42 KiB memory and successfully reclaimed 32 KiB memory in total.
+
+If unsure, use only the default value (``1``) and forget about this.
+
skip_anon
---------
diff --git a/Documentation/admin-guide/mm/damon/start.rst b/Documentation/admin-guide/mm/damon/start.rst
index 9f88afc734da..ec8c34b2d32f 100644
--- a/Documentation/admin-guide/mm/damon/start.rst
+++ b/Documentation/admin-guide/mm/damon/start.rst
@@ -7,7 +7,7 @@ Getting Started
This document briefly describes how you can use DAMON by demonstrating its
default user space tool. Please note that this document describes only a part
of its features for brevity. Please refer to the usage `doc
-<https://github.com/awslabs/damo/blob/next/USAGE.md>`_ of the tool for more
+<https://github.com/damonitor/damo/blob/next/USAGE.md>`_ of the tool for more
details.
@@ -26,7 +26,7 @@ User Space Tool
For the demonstration, we will use the default user space tool for DAMON,
called DAMON Operator (DAMO). It is available at
-https://github.com/awslabs/damo. The examples below assume that ``damo`` is on
+https://github.com/damonitor/damo. The examples below assume that ``damo`` is on
your ``$PATH``. It's not mandatory, though.
Because DAMO is using the sysfs interface (refer to :doc:`usage` for the
@@ -34,18 +34,69 @@ detail) of DAMON, you should ensure :doc:`sysfs </filesystems/sysfs>` is
mounted.
+Snapshot Data Access Patterns
+=============================
+
+The commands below show the memory access pattern of a program at the moment of
+the execution. ::
+
+ $ git clone https://github.com/sjp38/masim; cd masim; make
+ $ sudo damo start "./masim ./configs/stairs.cfg --quiet"
+ $ sudo damo report access
+ heatmap: 641111111000000000000000000000000000000000000000000000[...]33333333333333335557984444[...]7
+ # min/max temperatures: -1,840,000,000, 370,010,000, column size: 3.925 MiB
+ 0 addr 86.182 TiB size 8.000 KiB access 0 % age 14.900 s
+ 1 addr 86.182 TiB size 8.000 KiB access 60 % age 0 ns
+ 2 addr 86.182 TiB size 3.422 MiB access 0 % age 4.100 s
+ 3 addr 86.182 TiB size 2.004 MiB access 95 % age 2.200 s
+ 4 addr 86.182 TiB size 29.688 MiB access 0 % age 14.100 s
+ 5 addr 86.182 TiB size 29.516 MiB access 0 % age 16.700 s
+ 6 addr 86.182 TiB size 29.633 MiB access 0 % age 17.900 s
+ 7 addr 86.182 TiB size 117.652 MiB access 0 % age 18.400 s
+ 8 addr 126.990 TiB size 62.332 MiB access 0 % age 9.500 s
+ 9 addr 126.990 TiB size 13.980 MiB access 0 % age 5.200 s
+ 10 addr 126.990 TiB size 9.539 MiB access 100 % age 3.700 s
+ 11 addr 126.990 TiB size 16.098 MiB access 0 % age 6.400 s
+ 12 addr 127.987 TiB size 132.000 KiB access 0 % age 2.900 s
+ total size: 314.008 MiB
+ $ sudo damo stop
+
+The first command of the above example downloads and builds an artificial
+memory access generator program called ``masim``. The second command asks DAMO
+to start the program via the given command and make DAMON monitors the newly
+started process. The third command retrieves the current snapshot of the
+monitored access pattern of the process from DAMON and shows the pattern in a
+human readable format.
+
+The first line of the output shows the relative access temperature (hotness) of
+the regions in a single row hetmap format. Each column on the heatmap
+represents regions of same size on the monitored virtual address space. The
+position of the colun on the row and the number on the column represents the
+relative location and access temperature of the region. ``[...]`` means
+unmapped huge regions on the virtual address spaces. The second line shows
+additional information for better understanding the heatmap.
+
+Each line of the output from the third line shows which virtual address range
+(``addr XX size XX``) of the process is how frequently (``access XX %``)
+accessed for how long time (``age XX``). For example, the evelenth region of
+~9.5 MiB size is being most frequently accessed for last 3.7 seconds. Finally,
+the fourth command stops DAMON.
+
+Note that DAMON can monitor not only virtual address spaces but multiple types
+of address spaces including the physical address space.
+
+
Recording Data Access Patterns
==============================
The commands below record the memory access patterns of a program and save the
monitoring results to a file. ::
- $ git clone https://github.com/sjp38/masim
- $ cd masim; make; ./masim ./configs/zigzag.cfg &
+ $ ./masim ./configs/zigzag.cfg &
$ sudo damo record -o damon.data $(pidof masim)
-The first two lines of the commands download an artificial memory access
-generator program and run it in the background. The generator will repeatedly
+The line of the commands run the artificial memory access
+generator program again. The generator will repeatedly
access two 100 MiB sized memory regions one by one. You can substitute this
with your real workload. The last line asks ``damo`` to record the access
pattern in the ``damon.data`` file.
@@ -57,7 +108,7 @@ Visualizing Recorded Patterns
You can visualize the pattern in a heatmap, showing which memory region
(x-axis) got accessed when (y-axis) and how frequently (number).::
- $ sudo damo report heats --heatmap stdout
+ $ sudo damo report heatmap
22222222222222222222222222222222222222211111111111111111111111111111111111111100
44444444444444444444444444444444444444434444444444444444444444444444444444443200
44444444444444444444444444444444444444433444444444444444444444444444444444444200
@@ -119,9 +170,9 @@ set size has chronologically changed.::
Data Access Pattern Aware Memory Management
===========================================
-Below three commands make every memory region of size >=4K that doesn't
-accessed for >=60 seconds in your workload to be swapped out. ::
+Below command makes every memory region of size >=4K that has not accessed for
+>=60 seconds in your workload to be swapped out. ::
- $ echo "#min-size max-size min-acc max-acc min-age max-age action" > test_scheme
- $ echo "4K max 0 0 60s max pageout" >> test_scheme
- $ damo schemes -c test_scheme <pid of your workload>
+ $ sudo damo start --damos_access_rate 0 0 --damos_sz_region 4K max \
+ --damos_age 60s max --damos_action pageout \
+ --target_pid <pid of your workload>
diff --git a/Documentation/admin-guide/mm/damon/stat.rst b/Documentation/admin-guide/mm/damon/stat.rst
new file mode 100644
index 000000000000..e5a5a2c4f803
--- /dev/null
+++ b/Documentation/admin-guide/mm/damon/stat.rst
@@ -0,0 +1,86 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+===================================
+Data Access Monitoring Results Stat
+===================================
+
+Data Access Monitoring Results Stat (DAMON_STAT) is a static kernel module that
+is aimed to be used for simple access pattern monitoring. It monitors accesses
+on the system's entire physical memory using DAMON, and provides simplified
+access monitoring results statistics, namely idle time percentiles and
+estimated memory bandwidth.
+
+.. _damon_stat_monitoring_accuracy_overhead:
+
+Monitoring Accuracy and Overhead
+================================
+
+DAMON_STAT uses monitoring intervals :ref:`auto-tuning
+<damon_design_monitoring_intervals_autotuning>` to make its accuracy high and
+overhead minimum. It auto-tunes the intervals aiming 4 % of observable access
+events to be captured in each snapshot, while limiting the resulting sampling
+interval to be 5 milliseconds in minimum and 10 seconds in maximum. On a few
+production server systems, it resulted in consuming only 0.x % single CPU time,
+while capturing reasonable quality of access patterns. The tuning-resulting
+intervals can be retrieved via ``aggr_interval_us`` :ref:`parameter
+<damon_stat_aggr_interval_us>`.
+
+Interface: Module Parameters
+============================
+
+To use this feature, you should first ensure your system is running on a kernel
+that is built with ``CONFIG_DAMON_STAT=y``. The feature can be enabled by
+default at build time, by setting ``CONFIG_DAMON_STAT_ENABLED_DEFAULT`` true.
+
+To let sysadmins enable or disable it at boot and/or runtime, and read the
+monitoring results, DAMON_STAT provides module parameters. Following
+sections are descriptions of the parameters.
+
+enabled
+-------
+
+Enable or disable DAMON_STAT.
+
+You can enable DAMON_STAT by setting the value of this parameter as ``Y``.
+Setting it as ``N`` disables DAMON_STAT. The default value is set by
+``CONFIG_DAMON_STAT_ENABLED_DEFAULT`` build config option.
+
+.. _damon_stat_aggr_interval_us:
+
+aggr_interval_us
+----------------
+
+Auto-tuned aggregation time interval in microseconds.
+
+Users can read the aggregation interval of DAMON that is being used by the
+DAMON instance for DAMON_STAT. It is :ref:`auto-tuned
+<damon_stat_monitoring_accuracy_overhead>` and therefore the value is
+dynamically changed.
+
+estimated_memory_bandwidth
+--------------------------
+
+Estimated memory bandwidth consumption (bytes per second) of the system.
+
+DAMON_STAT reads observed access events on the current DAMON results snapshot
+and converts it to memory bandwidth consumption estimation in bytes per second.
+The resulting metric is exposed to user via this read-only parameter. Because
+DAMON uses sampling, this is only an estimation of the access intensity rather
+than accurate memory bandwidth.
+
+memory_idle_ms_percentiles
+--------------------------
+
+Per-byte idle time (milliseconds) percentiles of the system.
+
+DAMON_STAT calculates how long each byte of the memory was not accessed until
+now (idle time), based on the current DAMON results snapshot. For regions
+having access frequency (nr_accesses) larger than zero, how long the current
+access frequency level was kept multiplied by ``-1`` becomes the idlee time of
+every byte of the region. If a region has zero access frequency (nr_accesses),
+how long the region was keeping the zero access frequency (age) becomes the
+idle time of every byte of the region. Then, DAMON_STAT exposes the
+percentiles of the idle time values via this read-only parameter. Reading the
+parameter returns 101 idle time values in milliseconds, separated by comma.
+Each value represents 0-th, 1st, 2nd, 3rd, ..., 99th and 100th percentile idle
+times.
diff --git a/Documentation/admin-guide/mm/damon/usage.rst b/Documentation/admin-guide/mm/damon/usage.rst
index 9b823fec974d..9991dad60fcf 100644
--- a/Documentation/admin-guide/mm/damon/usage.rst
+++ b/Documentation/admin-guide/mm/damon/usage.rst
@@ -7,30 +7,19 @@ Detailed Usages
DAMON provides below interfaces for different users.
- *DAMON user space tool.*
- `This <https://github.com/awslabs/damo>`_ is for privileged people such as
+ `This <https://github.com/damonitor/damo>`_ is for privileged people such as
system administrators who want a just-working human-friendly interface.
Using this, users can use the DAMON’s major features in a human-friendly way.
- It may not be highly tuned for special cases, though. It supports both
- virtual and physical address spaces monitoring. For more detail, please
- refer to its `usage document
- <https://github.com/awslabs/damo/blob/next/USAGE.md>`_.
+ It may not be highly tuned for special cases, though. For more detail,
+ please refer to its `usage document
+ <https://github.com/damonitor/damo/blob/next/USAGE.md>`_.
- *sysfs interface.*
:ref:`This <sysfs_interface>` is for privileged user space programmers who
want more optimized use of DAMON. Using this, users can use DAMON’s major
features by reading from and writing to special sysfs files. Therefore,
you can write and use your personalized DAMON sysfs wrapper programs that
reads/writes the sysfs files instead of you. The `DAMON user space tool
- <https://github.com/awslabs/damo>`_ is one example of such programs. It
- supports both virtual and physical address spaces monitoring. Note that this
- interface provides only simple :ref:`statistics <damos_stats>` for the
- monitoring results. For detailed monitoring results, DAMON provides a
- :ref:`tracepoint <tracepoint>`.
-- *debugfs interface. (DEPRECATED!)*
- :ref:`This <debugfs_interface>` is almost identical to :ref:`sysfs interface
- <sysfs_interface>`. This is deprecated, so users should move to the
- :ref:`sysfs interface <sysfs_interface>`. If you depend on this and cannot
- move, please report your usecase to damon@lists.linux.dev and
- linux-mm@kvack.org.
+ <https://github.com/damonitor/damo>`_ is one example of such programs.
- *Kernel Space Programming Interface.*
:doc:`This </mm/damon/api>` is for kernel space programmers. Using this,
users can utilize every feature of DAMON most flexibly and efficiently by
@@ -64,124 +53,162 @@ Files Hierarchy
The files hierarchy of DAMON sysfs interface is shown below. In the below
figure, parents-children relations are represented with indentations, each
directory is having ``/`` suffix, and files in each directory are separated by
-comma (","). ::
-
- /sys/kernel/mm/damon/admin
- │ kdamonds/nr_kdamonds
- │ │ 0/state,pid
- │ │ │ contexts/nr_contexts
- │ │ │ │ 0/avail_operations,operations
- │ │ │ │ │ monitoring_attrs/
+comma (",").
+
+.. parsed-literal::
+
+ :ref:`/sys/kernel/mm/damon <sysfs_root>`/admin
+ │ :ref:`kdamonds <sysfs_kdamonds>`/nr_kdamonds
+ │ │ :ref:`0 <sysfs_kdamond>`/state,pid,refresh_ms
+ │ │ │ :ref:`contexts <sysfs_contexts>`/nr_contexts
+ │ │ │ │ :ref:`0 <sysfs_context>`/avail_operations,operations,addr_unit
+ │ │ │ │ │ :ref:`monitoring_attrs <sysfs_monitoring_attrs>`/
│ │ │ │ │ │ intervals/sample_us,aggr_us,update_us
+ │ │ │ │ │ │ │ intervals_goal/access_bp,aggrs,min_sample_us,max_sample_us
│ │ │ │ │ │ nr_regions/min,max
- │ │ │ │ │ targets/nr_targets
- │ │ │ │ │ │ 0/pid_target
- │ │ │ │ │ │ │ regions/nr_regions
- │ │ │ │ │ │ │ │ 0/start,end
+ │ │ │ │ │ :ref:`targets <sysfs_targets>`/nr_targets
+ │ │ │ │ │ │ :ref:`0 <sysfs_target>`/pid_target,obsolete_target
+ │ │ │ │ │ │ │ :ref:`regions <sysfs_regions>`/nr_regions
+ │ │ │ │ │ │ │ │ :ref:`0 <sysfs_region>`/start,end
│ │ │ │ │ │ │ │ ...
│ │ │ │ │ │ ...
- │ │ │ │ │ schemes/nr_schemes
- │ │ │ │ │ │ 0/action
- │ │ │ │ │ │ │ access_pattern/
+ │ │ │ │ │ :ref:`schemes <sysfs_schemes>`/nr_schemes
+ │ │ │ │ │ │ :ref:`0 <sysfs_scheme>`/action,target_nid,apply_interval_us
+ │ │ │ │ │ │ │ :ref:`access_pattern <sysfs_access_pattern>`/
│ │ │ │ │ │ │ │ sz/min,max
│ │ │ │ │ │ │ │ nr_accesses/min,max
│ │ │ │ │ │ │ │ age/min,max
- │ │ │ │ │ │ │ quotas/ms,bytes,reset_interval_ms
+ │ │ │ │ │ │ │ :ref:`quotas <sysfs_quotas>`/ms,bytes,reset_interval_ms,effective_bytes
│ │ │ │ │ │ │ │ weights/sz_permil,nr_accesses_permil,age_permil
- │ │ │ │ │ │ │ watermarks/metric,interval_us,high,mid,low
- │ │ │ │ │ │ │ filters/nr_filters
- │ │ │ │ │ │ │ │ 0/type,matching,memcg_id
- │ │ │ │ │ │ │ stats/nr_tried,sz_tried,nr_applied,sz_applied,qt_exceeds
- │ │ │ │ │ │ │ tried_regions/
- │ │ │ │ │ │ │ │ 0/start,end,nr_accesses,age
+ │ │ │ │ │ │ │ │ :ref:`goals <sysfs_schemes_quota_goals>`/nr_goals
+ │ │ │ │ │ │ │ │ │ 0/target_metric,target_value,current_value,nid,path
+ │ │ │ │ │ │ │ :ref:`watermarks <sysfs_watermarks>`/metric,interval_us,high,mid,low
+ │ │ │ │ │ │ │ :ref:`{core_,ops_,}filters <sysfs_filters>`/nr_filters
+ │ │ │ │ │ │ │ │ 0/type,matching,allow,memcg_path,addr_start,addr_end,target_idx,min,max
+ │ │ │ │ │ │ │ :ref:`dests <damon_sysfs_dests>`/nr_dests
+ │ │ │ │ │ │ │ │ 0/id,weight
+ │ │ │ │ │ │ │ :ref:`stats <sysfs_schemes_stats>`/nr_tried,sz_tried,nr_applied,sz_applied,sz_ops_filter_passed,qt_exceeds
+ │ │ │ │ │ │ │ :ref:`tried_regions <sysfs_schemes_tried_regions>`/total_bytes
+ │ │ │ │ │ │ │ │ 0/start,end,nr_accesses,age,sz_filter_passed
│ │ │ │ │ │ │ │ ...
│ │ │ │ │ │ ...
│ │ │ │ ...
│ │ ...
+.. _sysfs_root:
+
Root
----
The root of the DAMON sysfs interface is ``<sysfs>/kernel/mm/damon/``, and it
has one directory named ``admin``. The directory contains the files for
-privileged user space programs' control of DAMON. User space tools or deamons
+privileged user space programs' control of DAMON. User space tools or daemons
having the root permission could use this directory.
+.. _sysfs_kdamonds:
+
kdamonds/
---------
-The monitoring-related information including request specifications and results
-are called DAMON context. DAMON executes each context with a kernel thread
-called kdamond, and multiple kdamonds could run in parallel.
-
Under the ``admin`` directory, one directory, ``kdamonds``, which has files for
-controlling the kdamonds exist. In the beginning, this directory has only one
-file, ``nr_kdamonds``. Writing a number (``N``) to the file creates the number
-of child directories named ``0`` to ``N-1``. Each directory represents each
+controlling the kdamonds (refer to
+:ref:`design <damon_design_execution_model_and_data_structures>` for more
+details) exists. In the beginning, this directory has only one file,
+``nr_kdamonds``. Writing a number (``N``) to the file creates the number of
+child directories named ``0`` to ``N-1``. Each directory represents each
kdamond.
+.. _sysfs_kdamond:
+
kdamonds/<N>/
-------------
-In each kdamond directory, two files (``state`` and ``pid``) and one directory
-(``contexts``) exist.
+In each kdamond directory, three files (``state``, ``pid`` and ``refresh_ms``)
+and one directory (``contexts``) exist.
Reading ``state`` returns ``on`` if the kdamond is currently running, or
-``off`` if it is not running. Writing ``on`` or ``off`` makes the kdamond be
-in the state. Writing ``commit`` to the ``state`` file makes kdamond reads the
-user inputs in the sysfs files except ``state`` file again. Writing
-``update_schemes_stats`` to ``state`` file updates the contents of stats files
-for each DAMON-based operation scheme of the kdamond. For details of the
-stats, please refer to :ref:`stats section <sysfs_schemes_stats>`. Writing
-``update_schemes_tried_regions`` to ``state`` file updates the DAMON-based
-operation scheme action tried regions directory for each DAMON-based operation
-scheme of the kdamond. Writing ``clear_schemes_tried_regions`` to ``state``
-file clears the DAMON-based operating scheme action tried regions directory for
-each DAMON-based operation scheme of the kdamond. For details of the
-DAMON-based operation scheme action tried regions directory, please refer to
-:ref:tried_regions section <sysfs_schemes_tried_regions>`.
+``off`` if it is not running.
+
+Users can write below commands for the kdamond to the ``state`` file.
+
+- ``on``: Start running.
+- ``off``: Stop running.
+- ``commit``: Read the user inputs in the sysfs files except ``state`` file
+ again. Monitoring :ref:`target region <sysfs_regions>` inputs are also be
+ ignored if no target region is specified.
+- ``update_tuned_intervals``: Update the contents of ``sample_us`` and
+ ``aggr_us`` files of the kdamond with the auto-tuning applied ``sampling
+ interval`` and ``aggregation interval`` for the files. Please refer to
+ :ref:`intervals_goal section <damon_usage_sysfs_monitoring_intervals_goal>`
+ for more details.
+- ``commit_schemes_quota_goals``: Read the DAMON-based operation schemes'
+ :ref:`quota goals <sysfs_schemes_quota_goals>`.
+- ``update_schemes_stats``: Update the contents of stats files for each
+ DAMON-based operation scheme of the kdamond. For details of the stats,
+ please refer to :ref:`stats section <sysfs_schemes_stats>`.
+- ``update_schemes_tried_regions``: Update the DAMON-based operation scheme
+ action tried regions directory for each DAMON-based operation scheme of the
+ kdamond. For details of the DAMON-based operation scheme action tried
+ regions directory, please refer to
+ :ref:`tried_regions section <sysfs_schemes_tried_regions>`.
+- ``update_schemes_tried_bytes``: Update only ``.../tried_regions/total_bytes``
+ files.
+- ``clear_schemes_tried_regions``: Clear the DAMON-based operating scheme
+ action tried regions directory for each DAMON-based operation scheme of the
+ kdamond.
+- ``update_schemes_effective_quotas``: Update the contents of
+ ``effective_bytes`` files for each DAMON-based operation scheme of the
+ kdamond. For more details, refer to :ref:`quotas directory <sysfs_quotas>`.
If the state is ``on``, reading ``pid`` shows the pid of the kdamond thread.
+Users can ask the kernel to periodically update files showing auto-tuned
+parameters and DAMOS stats instead of manually writing
+``update_tuned_intervals`` like keywords to ``state`` file. For this, users
+should write the desired update time interval in milliseconds to ``refresh_ms``
+file. If the interval is zero, the periodic update is disabled. Reading the
+file shows currently set time interval.
+
``contexts`` directory contains files for controlling the monitoring contexts
that this kdamond will execute.
+.. _sysfs_contexts:
+
kdamonds/<N>/contexts/
----------------------
In the beginning, this directory has only one file, ``nr_contexts``. Writing a
number (``N``) to the file creates the number of child directories named as
-``0`` to ``N-1``. Each directory represents each monitoring context. At the
-moment, only one context per kdamond is supported, so only ``0`` or ``1`` can
-be written to the file.
+``0`` to ``N-1``. Each directory represents each monitoring context (refer to
+:ref:`design <damon_design_execution_model_and_data_structures>` for more
+details). At the moment, only one context per kdamond is supported, so only
+``0`` or ``1`` can be written to the file.
-.. _sysfs_contexts:
+.. _sysfs_context:
contexts/<N>/
-------------
-In each context directory, two files (``avail_operations`` and ``operations``)
-and three directories (``monitoring_attrs``, ``targets``, and ``schemes``)
-exist.
+In each context directory, three files (``avail_operations``, ``operations``
+and ``addr_unit``) and three directories (``monitoring_attrs``, ``targets``,
+and ``schemes``) exist.
-DAMON supports multiple types of monitoring operations, including those for
-virtual address space and the physical address space. You can get the list of
-available monitoring operations set on the currently running kernel by reading
+DAMON supports multiple types of :ref:`monitoring operations
+<damon_design_configurable_operations_set>`, including those for virtual address
+space and the physical address space. You can get the list of available
+monitoring operations set on the currently running kernel by reading
``avail_operations`` file. Based on the kernel configuration, the file will
-list some or all of below keywords.
-
- - vaddr: Monitor virtual address spaces of specific processes
- - fvaddr: Monitor fixed virtual address ranges
- - paddr: Monitor the physical address space of the system
-
-Please refer to :ref:`regions sysfs directory <sysfs_regions>` for detailed
-differences between the operations sets in terms of the monitoring target
-regions.
+list different available operation sets. Please refer to the :ref:`design
+<damon_operations_set>` for the list of all available operation sets and their
+brief explanations.
You can set and get what type of monitoring operations DAMON will use for the
context by writing one of the keywords listed in ``avail_operations`` file and
reading from the ``operations`` file.
+``addr_unit`` file is for setting and getting the :ref:`address unit
+<damon_design_addr_unit>` parameter of the operations set.
+
.. _sysfs_monitoring_attrs:
contexts/<N>/monitoring_attrs/
@@ -205,6 +232,27 @@ writing to and rading from the files.
For more details about the intervals and monitoring regions range, please refer
to the Design document (:doc:`/mm/damon/design`).
+.. _damon_usage_sysfs_monitoring_intervals_goal:
+
+contexts/<N>/monitoring_attrs/intervals/intervals_goal/
+-------------------------------------------------------
+
+Under the ``intervals`` directory, one directory for automated tuning of
+``sample_us`` and ``aggr_us``, namely ``intervals_goal`` directory also exists.
+Under the directory, four files for the auto-tuning control, namely
+``access_bp``, ``aggrs``, ``min_sample_us`` and ``max_sample_us`` exist.
+Please refer to the :ref:`design document of the feature
+<damon_design_monitoring_intervals_autotuning>` for the internal of the tuning
+mechanism. Reading and writing the four files under ``intervals_goal``
+directory shows and updates the tuning parameters that described in the
+:ref:design doc <damon_design_monitoring_intervals_autotuning>` with the same
+names. The tuning starts with the user-set ``sample_us`` and ``aggr_us``. The
+tuning-applied current values of the two intervals can be read from the
+``sample_us`` and ``aggr_us`` files after writing ``update_tuned_intervals`` to
+the ``state`` file.
+
+.. _sysfs_targets:
+
contexts/<N>/targets/
---------------------
@@ -212,32 +260,35 @@ In the beginning, this directory has only one file, ``nr_targets``. Writing a
number (``N``) to the file creates the number of child directories named ``0``
to ``N-1``. Each directory represents each monitoring target.
+.. _sysfs_target:
+
targets/<N>/
------------
-In each target directory, one file (``pid_target``) and one directory
-(``regions``) exist.
+In each target directory, two files (``pid_target`` and ``obsolete_target``)
+and one directory (``regions``) exist.
If you wrote ``vaddr`` to the ``contexts/<N>/operations``, each target should
be a process. You can specify the process to DAMON by writing the pid of the
process to the ``pid_target`` file.
+Users can selectively remove targets in the middle of the targets array by
+writing non-zero value to ``obsolete_target`` file and committing it (writing
+``commit`` to ``state`` file). DAMON will remove the matching targets from its
+internal targets array. Users are responsible to construct target directories
+again, so that those correctly represent the changed internal targets array.
+
+
.. _sysfs_regions:
targets/<N>/regions
-------------------
-When ``vaddr`` monitoring operations set is being used (``vaddr`` is written to
-the ``contexts/<N>/operations`` file), DAMON automatically sets and updates the
-monitoring target regions so that entire memory mappings of target processes
-can be covered. However, users could want to set the initial monitoring region
-to specific address ranges.
-
-In contrast, DAMON do not automatically sets and updates the monitoring target
-regions when ``fvaddr`` or ``paddr`` monitoring operations sets are being used
-(``fvaddr`` or ``paddr`` have written to the ``contexts/<N>/operations``).
-Therefore, users should set the monitoring target regions by themselves in the
-cases.
+In case of ``fvaddr`` or ``paddr`` monitoring operations sets, users are
+required to set the monitoring target address ranges. In case of ``vaddr``
+operations set, it is not mandatory, but users can optionally set the initial
+monitoring region to specific address ranges. Please refer to the :ref:`design
+<damon_design_vaddr_target_regions_construction>` for more details.
For such cases, users can explicitly set the initial monitoring target regions
as they want, by writing proper values to the files under this directory.
@@ -246,6 +297,13 @@ In the beginning, this directory has only one file, ``nr_regions``. Writing a
number (``N``) to the file creates the number of child directories named ``0``
to ``N-1``. Each directory represents each initial monitoring target region.
+If ``nr_regions`` is zero when committing new DAMON parameters online (writing
+``commit`` to ``state`` file of :ref:`kdamond <sysfs_kdamond>`), the commit
+logic ignores the target regions. In other words, the current monitoring
+results for the target are preserved.
+
+.. _sysfs_region:
+
regions/<N>/
------------
@@ -256,104 +314,126 @@ region by writing to and reading from the files, respectively.
Each region should not overlap with others. ``end`` of directory ``N`` should
be equal or smaller than ``start`` of directory ``N+1``.
+.. _sysfs_schemes:
+
contexts/<N>/schemes/
---------------------
-For usual DAMON-based data access aware memory management optimizations, users
-would normally want the system to apply a memory management action to a memory
-region of a specific access pattern. DAMON receives such formalized operation
-schemes from the user and applies those to the target memory regions. Users
-can get and set the schemes by reading from and writing to files under this
-directory.
+The directory for DAMON-based Operation Schemes (:ref:`DAMOS
+<damon_design_damos>`). Users can get and set the schemes by reading from and
+writing to files under this directory.
In the beginning, this directory has only one file, ``nr_schemes``. Writing a
number (``N``) to the file creates the number of child directories named ``0``
to ``N-1``. Each directory represents each DAMON-based operation scheme.
+.. _sysfs_scheme:
+
schemes/<N>/
------------
-In each scheme directory, five directories (``access_pattern``, ``quotas``,
-``watermarks``, ``filters``, ``stats``, and ``tried_regions``) and one file
-(``action``) exist.
-
-The ``action`` file is for setting and getting what action you want to apply to
-memory regions having specific access pattern of the interest. The keywords
-that can be written to and read from the file and their meaning are as below.
-
-Note that support of each action depends on the running DAMON operations set
-`implementation <sysfs_contexts>`.
-
- - ``willneed``: Call ``madvise()`` for the region with ``MADV_WILLNEED``.
- Supported by ``vaddr`` and ``fvaddr`` operations set.
- - ``cold``: Call ``madvise()`` for the region with ``MADV_COLD``.
- Supported by ``vaddr`` and ``fvaddr`` operations set.
- - ``pageout``: Call ``madvise()`` for the region with ``MADV_PAGEOUT``.
- Supported by ``vaddr``, ``fvaddr`` and ``paddr`` operations set.
- - ``hugepage``: Call ``madvise()`` for the region with ``MADV_HUGEPAGE``.
- Supported by ``vaddr`` and ``fvaddr`` operations set.
- - ``nohugepage``: Call ``madvise()`` for the region with ``MADV_NOHUGEPAGE``.
- Supported by ``vaddr`` and ``fvaddr`` operations set.
- - ``lru_prio``: Prioritize the region on its LRU lists.
- Supported by ``paddr`` operations set.
- - ``lru_deprio``: Deprioritize the region on its LRU lists.
- Supported by ``paddr`` operations set.
- - ``stat``: Do nothing but count the statistics.
- Supported by all operations sets.
+In each scheme directory, eight directories (``access_pattern``, ``quotas``,
+``watermarks``, ``core_filters``, ``ops_filters``, ``filters``, ``dests``,
+``stats``, and ``tried_regions``) and three files (``action``, ``target_nid``
+and ``apply_interval``) exist.
+
+The ``action`` file is for setting and getting the scheme's :ref:`action
+<damon_design_damos_action>`. The keywords that can be written to and read
+from the file and their meaning are same to those of the list on
+:ref:`design doc <damon_design_damos_action>`.
+
+The ``target_nid`` file is for setting the migration target node, which is
+only meaningful when the ``action`` is either ``migrate_hot`` or
+``migrate_cold``.
+
+The ``apply_interval_us`` file is for setting and getting the scheme's
+:ref:`apply_interval <damon_design_damos>` in microseconds.
+
+.. _sysfs_access_pattern:
schemes/<N>/access_pattern/
---------------------------
-The target access pattern of each DAMON-based operation scheme is constructed
-with three ranges including the size of the region in bytes, number of
-monitored accesses per aggregate interval, and number of aggregated intervals
-for the age of the region.
+The directory for the target access :ref:`pattern
+<damon_design_damos_access_pattern>` of the given DAMON-based operation scheme.
Under the ``access_pattern`` directory, three directories (``sz``,
``nr_accesses``, and ``age``) each having two files (``min`` and ``max``)
exist. You can set and get the access pattern for the given scheme by writing
to and reading from the ``min`` and ``max`` files under ``sz``,
-``nr_accesses``, and ``age`` directories, respectively.
+``nr_accesses``, and ``age`` directories, respectively. Note that the ``min``
+and the ``max`` form a closed interval.
+
+.. _sysfs_quotas:
schemes/<N>/quotas/
-------------------
-Optimal ``target access pattern`` for each ``action`` is workload dependent, so
-not easy to find. Worse yet, setting a scheme of some action too aggressive
-can cause severe overhead. To avoid such overhead, users can limit time and
-size quota for each scheme. In detail, users can ask DAMON to try to use only
-up to specific time (``time quota``) for applying the action, and to apply the
-action to only up to specific amount (``size quota``) of memory regions having
-the target access pattern within a given time interval (``reset interval``).
+The directory for the :ref:`quotas <damon_design_damos_quotas>` of the given
+DAMON-based operation scheme.
-When the quota limit is expected to be exceeded, DAMON prioritizes found memory
-regions of the ``target access pattern`` based on their size, access frequency,
-and age. For personalized prioritization, users can set the weights for the
-three properties.
-
-Under ``quotas`` directory, three files (``ms``, ``bytes``,
-``reset_interval_ms``) and one directory (``weights``) having three files
-(``sz_permil``, ``nr_accesses_permil``, and ``age_permil``) in it exist.
+Under ``quotas`` directory, four files (``ms``, ``bytes``,
+``reset_interval_ms``, ``effective_bytes``) and two directories (``weights`` and
+``goals``) exist.
You can set the ``time quota`` in milliseconds, ``size quota`` in bytes, and
``reset interval`` in milliseconds by writing the values to the three files,
-respectively. You can also set the prioritization weights for size, access
-frequency, and age in per-thousand unit by writing the values to the three
-files under the ``weights`` directory.
+respectively. Then, DAMON tries to use only up to ``time quota`` milliseconds
+for applying the ``action`` to memory regions of the ``access_pattern``, and to
+apply the action to only up to ``bytes`` bytes of memory regions within the
+``reset_interval_ms``. Setting both ``ms`` and ``bytes`` zero disables the
+quota limits unless at least one :ref:`goal <sysfs_schemes_quota_goals>` is
+set.
+
+The time quota is internally transformed to a size quota. Between the
+transformed size quota and user-specified size quota, smaller one is applied.
+Based on the user-specified :ref:`goal <sysfs_schemes_quota_goals>`, the
+effective size quota is further adjusted. Reading ``effective_bytes`` returns
+the current effective size quota. The file is not updated in real time, so
+users should ask DAMON sysfs interface to update the content of the file for
+the stats by writing a special keyword, ``update_schemes_effective_quotas`` to
+the relevant ``kdamonds/<N>/state`` file.
+
+Under ``weights`` directory, three files (``sz_permil``,
+``nr_accesses_permil``, and ``age_permil``) exist.
+You can set the :ref:`prioritization weights
+<damon_design_damos_quotas_prioritization>` for size, access frequency, and age
+in per-thousand unit by writing the values to the three files under the
+``weights`` directory.
+
+.. _sysfs_schemes_quota_goals:
+
+schemes/<N>/quotas/goals/
+-------------------------
+
+The directory for the :ref:`automatic quota tuning goals
+<damon_design_damos_quotas_auto_tuning>` of the given DAMON-based operation
+scheme.
+
+In the beginning, this directory has only one file, ``nr_goals``. Writing a
+number (``N``) to the file creates the number of child directories named ``0``
+to ``N-1``. Each directory represents each goal and current achievement.
+Among the multiple feedback, the best one is used.
+
+Each goal directory contains five files, namely ``target_metric``,
+``target_value``, ``current_value`` ``nid`` and ``path``. Users can set and
+get the five parameters for the quota auto-tuning goals that specified on the
+:ref:`design doc <damon_design_damos_quotas_auto_tuning>` by writing to and
+reading from each of the files. Note that users should further write
+``commit_schemes_quota_goals`` to the ``state`` file of the :ref:`kdamond
+directory <sysfs_kdamond>` to pass the feedback to DAMON.
+
+.. _sysfs_watermarks:
schemes/<N>/watermarks/
-----------------------
-To allow easy activation and deactivation of each scheme based on system
-status, DAMON provides a feature called watermarks. The feature receives five
-values called ``metric``, ``interval``, ``high``, ``mid``, and ``low``. The
-``metric`` is the system metric such as free memory ratio that can be measured.
-If the metric value of the system is higher than the value in ``high`` or lower
-than ``low`` at the memoent, the scheme is deactivated. If the value is lower
-than ``mid``, the scheme is activated.
+The directory for the :ref:`watermarks <damon_design_damos_watermarks>` of the
+given DAMON-based operation scheme.
Under the watermarks directory, five files (``metric``, ``interval_us``,
-``high``, ``mid``, and ``low``) for setting each value exist. You can set and
+``high``, ``mid``, and ``low``) for setting the metric, the time interval
+between check of the metric, and the three watermarks exist. You can set and
get the five values by writing to the files, respectively.
Keywords and meanings of those that can be written to the ``metric`` file are
@@ -364,88 +444,149 @@ as below.
The ``interval`` should written in microseconds unit.
-schemes/<N>/filters/
---------------------
+.. _sysfs_filters:
-Users could know something more than the kernel for specific types of memory.
-In the case, users could do their own management for the memory and hence
-doesn't want DAMOS bothers that. Users could limit DAMOS by setting the access
-pattern of the scheme and/or the monitoring regions for the purpose, but that
-can be inefficient in some cases. In such cases, users could set non-access
-pattern driven filters using files in this directory.
+schemes/<N>/{core\_,ops\_,}filters/
+-----------------------------------
-In the beginning, this directory has only one file, ``nr_filters``. Writing a
+Directories for :ref:`filters <damon_design_damos_filters>` of the given
+DAMON-based operation scheme.
+
+``core_filters`` and ``ops_filters`` directories are for the filters handled by
+the DAMON core layer and operations set layer, respectively. ``filters``
+directory can be used for installing filters regardless of their handled
+layers. Filters that requested by ``core_filters`` and ``ops_filters`` will be
+installed before those of ``filters``. All three directories have same files.
+
+Use of ``filters`` directory can make expecting evaluation orders of given
+filters with the files under directory bit confusing. Users are hence
+recommended to use ``core_filters`` and ``ops_filters`` directories. The
+``filters`` directory could be deprecated in future.
+
+In the beginning, the directory has only one file, ``nr_filters``. Writing a
number (``N``) to the file creates the number of child directories named ``0``
to ``N-1``. Each directory represents each filter. The filters are evaluated
in the numeric order.
-Each filter directory contains three files, namely ``type``, ``matcing``, and
-``memcg_path``. You can write one of two special keywords, ``anon`` for
-anonymous pages, or ``memcg`` for specific memory cgroup filtering. In case of
-the memory cgroup filtering, you can specify the memory cgroup of the interest
-by writing the path of the memory cgroup from the cgroups mount point to
-``memcg_path`` file. You can write ``Y`` or ``N`` to ``matching`` file to
-filter out pages that does or does not match to the type, respectively. Then,
-the scheme's action will not be applied to the pages that specified to be
-filtered out.
+Each filter directory contains nine files, namely ``type``, ``matching``,
+``allow``, ``memcg_path``, ``addr_start``, ``addr_end``, ``min``, ``max``
+and ``target_idx``. To ``type`` file, you can write the type of the filter.
+Refer to :ref:`the design doc <damon_design_damos_filters>` for available type
+names, their meaning and on what layer those are handled.
+
+For ``memcg`` type, you can specify the memory cgroup of the interest by
+writing the path of the memory cgroup from the cgroups mount point to
+``memcg_path`` file. For ``addr`` type, you can specify the start and end
+address of the range (open-ended interval) to ``addr_start`` and ``addr_end``
+files, respectively. For ``hugepage_size`` type, you can specify the minimum
+and maximum size of the range (closed interval) to ``min`` and ``max`` files,
+respectively. For ``target`` type, you can specify the index of the target
+between the list of the DAMON context's monitoring targets list to
+``target_idx`` file.
+
+You can write ``Y`` or ``N`` to ``matching`` file to specify whether the filter
+is for memory that matches the ``type``. You can write ``Y`` or ``N`` to
+``allow`` file to specify if applying the action to the memory that satisfies
+the ``type`` and ``matching`` should be allowed or not.
For example, below restricts a DAMOS action to be applied to only non-anonymous
pages of all memory cgroups except ``/having_care_already``.::
+ # cd ops_filters/0/
# echo 2 > nr_filters
- # # filter out anonymous pages
+ # # disallow anonymous pages
echo anon > 0/type
echo Y > 0/matching
+ echo N > 0/allow
# # further filter out all cgroups except one at '/having_care_already'
echo memcg > 1/type
echo /having_care_already > 1/memcg_path
- echo N > 1/matching
+ echo Y > 1/matching
+ echo N > 1/allow
+
+Refer to the :ref:`DAMOS filters design documentation
+<damon_design_damos_filters>` for more details including how multiple filters
+of different ``allow`` works, when each of the filters are supported, and
+differences on stats.
+
+.. _damon_sysfs_dests:
-Note that filters are currently supported only when ``paddr``
-`implementation <sysfs_contexts>` is being used.
+schemes/<N>/dests/
+------------------
+
+Directory for specifying the destinations of given DAMON-based operation
+scheme's action. This directory is ignored if the action of the given scheme
+is not supporting multiple destinations. Only ``DAMOS_MIGRATE_{HOT,COLD}``
+actions are supporting multiple destinations.
+
+In the beginning, the directory has only one file, ``nr_dests``. Writing a
+number (``N``) to the file creates the number of child directories named ``0``
+to ``N-1``. Each directory represents each action destination.
+
+Each destination directory contains two files, namely ``id`` and ``weight``.
+Users can write and read the identifier of the destination to ``id`` file.
+For ``DAMOS_MIGRATE_{HOT,COLD}`` actions, the migrate destination node's node
+id should be written to ``id`` file. Users can write and read the weight of
+the destination among the given destinations to the ``weight`` file. The
+weight can be an arbitrary integer. When DAMOS apply the action to each entity
+of the memory region, it will select the destination of the action based on the
+relative weights of the destinations.
.. _sysfs_schemes_stats:
schemes/<N>/stats/
------------------
-DAMON counts the total number and bytes of regions that each scheme is tried to
-be applied, the two numbers for the regions that each scheme is successfully
-applied, and the total number of the quota limit exceeds. This statistics can
-be used for online analysis or tuning of the schemes.
+DAMON counts statistics for each scheme. This statistics can be used for
+online analysis or tuning of the schemes. Refer to :ref:`design doc
+<damon_design_damos_stat>` for more details about the stats.
The statistics can be retrieved by reading the files under ``stats`` directory
-(``nr_tried``, ``sz_tried``, ``nr_applied``, ``sz_applied``, and
-``qt_exceeds``), respectively. The files are not updated in real time, so you
-should ask DAMON sysfs interface to updte the content of the files for the
-stats by writing a special keyword, ``update_schemes_stats`` to the relevant
-``kdamonds/<N>/state`` file.
+(``nr_tried``, ``sz_tried``, ``nr_applied``, ``sz_applied``,
+``sz_ops_filter_passed``, and ``qt_exceeds``), respectively. The files are not
+updated in real time, so you should ask DAMON sysfs interface to update the
+content of the files for the stats by writing a special keyword,
+``update_schemes_stats`` to the relevant ``kdamonds/<N>/state`` file.
.. _sysfs_schemes_tried_regions:
schemes/<N>/tried_regions/
--------------------------
+This directory initially has one file, ``total_bytes``.
+
When a special keyword, ``update_schemes_tried_regions``, is written to the
-relevant ``kdamonds/<N>/state`` file, DAMON creates directories named integer
-starting from ``0`` under this directory. Each directory contains files
-exposing detailed information about each of the memory region that the
-corresponding scheme's ``action`` has tried to be applied under this directory,
-during next :ref:`aggregation interval <sysfs_monitoring_attrs>`. The
-information includes address range, ``nr_accesses``, , and ``age`` of the
-region.
+relevant ``kdamonds/<N>/state`` file, DAMON updates the ``total_bytes`` file so
+that reading it returns the total size of the scheme tried regions, and creates
+directories named integer starting from ``0`` under this directory. Each
+directory contains files exposing detailed information about each of the memory
+region that the corresponding scheme's ``action`` has tried to be applied under
+this directory, during next :ref:`apply interval <damon_design_damos>` of the
+corresponding scheme. The information includes address range, ``nr_accesses``,
+and ``age`` of the region.
+
+Writing ``update_schemes_tried_bytes`` to the relevant ``kdamonds/<N>/state``
+file will only update the ``total_bytes`` file, and will not create the
+subdirectories.
The directories will be removed when another special keyword,
``clear_schemes_tried_regions``, is written to the relevant
``kdamonds/<N>/state`` file.
+The expected usage of this directory is investigations of schemes' behaviors,
+and query-like efficient data access monitoring results retrievals. For the
+latter use case, in particular, users can set the ``action`` as ``stat`` and
+set the ``access pattern`` as their interested pattern that they want to query.
+
+.. _sysfs_schemes_tried_region:
+
tried_regions/<N>/
------------------
-In each region directory, you will find four files (``start``, ``end``,
-``nr_accesses``, and ``age``). Reading the files will show the start and end
-addresses, ``nr_accesses``, and ``age`` of the region that corresponding
-DAMON-based operation scheme ``action`` has tried to be applied.
+In each region directory, you will find five files (``start``, ``end``,
+``nr_accesses``, ``age``, and ``sz_filter_passed``). Reading the files will
+show the properties of the region that corresponding DAMON-based operation
+scheme ``action`` has tried to be applied.
Example
~~~~~~~
@@ -484,327 +625,60 @@ memory rate becomes larger than 60%, or lower than 30%". ::
# echo 300 > watermarks/low
Please note that it's highly recommended to use user space tools like `damo
-<https://github.com/awslabs/damo>`_ rather than manually reading and writing
+<https://github.com/damonitor/damo>`_ rather than manually reading and writing
the files as above. Above is only for an example.
-.. _debugfs_interface:
-
-debugfs Interface (DEPRECATED!)
-===============================
-
-.. note::
-
- THIS IS DEPRECATED!
-
- DAMON debugfs interface is deprecated, so users should move to the
- :ref:`sysfs interface <sysfs_interface>`. If you depend on this and cannot
- move, please report your usecase to damon@lists.linux.dev and
- linux-mm@kvack.org.
-
-DAMON exports eight files, ``attrs``, ``target_ids``, ``init_regions``,
-``schemes``, ``monitor_on``, ``kdamond_pid``, ``mk_contexts`` and
-``rm_contexts`` under its debugfs directory, ``<debugfs>/damon/``.
-
-
-Attributes
-----------
-
-Users can get and set the ``sampling interval``, ``aggregation interval``,
-``update interval``, and min/max number of monitoring target regions by
-reading from and writing to the ``attrs`` file. To know about the monitoring
-attributes in detail, please refer to the :doc:`/mm/damon/design`. For
-example, below commands set those values to 5 ms, 100 ms, 1,000 ms, 10 and
-1000, and then check it again::
-
- # cd <debugfs>/damon
- # echo 5000 100000 1000000 10 1000 > attrs
- # cat attrs
- 5000 100000 1000000 10 1000
-
-
-Target IDs
-----------
-
-Some types of address spaces supports multiple monitoring target. For example,
-the virtual memory address spaces monitoring can have multiple processes as the
-monitoring targets. Users can set the targets by writing relevant id values of
-the targets to, and get the ids of the current targets by reading from the
-``target_ids`` file. In case of the virtual address spaces monitoring, the
-values should be pids of the monitoring target processes. For example, below
-commands set processes having pids 42 and 4242 as the monitoring targets and
-check it again::
-
- # cd <debugfs>/damon
- # echo 42 4242 > target_ids
- # cat target_ids
- 42 4242
-
-Users can also monitor the physical memory address space of the system by
-writing a special keyword, "``paddr\n``" to the file. Because physical address
-space monitoring doesn't support multiple targets, reading the file will show a
-fake value, ``42``, as below::
-
- # cd <debugfs>/damon
- # echo paddr > target_ids
- # cat target_ids
- 42
-
-Note that setting the target ids doesn't start the monitoring.
-
-
-Initial Monitoring Target Regions
----------------------------------
-
-In case of the virtual address space monitoring, DAMON automatically sets and
-updates the monitoring target regions so that entire memory mappings of target
-processes can be covered. However, users can want to limit the monitoring
-region to specific address ranges, such as the heap, the stack, or specific
-file-mapped area. Or, some users can know the initial access pattern of their
-workloads and therefore want to set optimal initial regions for the 'adaptive
-regions adjustment'.
-
-In contrast, DAMON do not automatically sets and updates the monitoring target
-regions in case of physical memory monitoring. Therefore, users should set the
-monitoring target regions by themselves.
-
-In such cases, users can explicitly set the initial monitoring target regions
-as they want, by writing proper values to the ``init_regions`` file. The input
-should be a sequence of three integers separated by white spaces that represent
-one region in below form.::
-
- <target idx> <start address> <end address>
-
-The ``target idx`` should be the index of the target in ``target_ids`` file,
-starting from ``0``, and the regions should be passed in address order. For
-example, below commands will set a couple of address ranges, ``1-100`` and
-``100-200`` as the initial monitoring target region of pid 42, which is the
-first one (index ``0``) in ``target_ids``, and another couple of address
-ranges, ``20-40`` and ``50-100`` as that of pid 4242, which is the second one
-(index ``1``) in ``target_ids``.::
-
- # cd <debugfs>/damon
- # cat target_ids
- 42 4242
- # echo "0 1 100 \
- 0 100 200 \
- 1 20 40 \
- 1 50 100" > init_regions
-
-Note that this sets the initial monitoring target regions only. In case of
-virtual memory monitoring, DAMON will automatically updates the boundary of the
-regions after one ``update interval``. Therefore, users should set the
-``update interval`` large enough in this case, if they don't want the
-update.
-
-
-Schemes
--------
-
-For usual DAMON-based data access aware memory management optimizations, users
-would simply want the system to apply a memory management action to a memory
-region of a specific access pattern. DAMON receives such formalized operation
-schemes from the user and applies those to the target processes.
-
-Users can get and set the schemes by reading from and writing to ``schemes``
-debugfs file. Reading the file also shows the statistics of each scheme. To
-the file, each of the schemes should be represented in each line in below
-form::
-
- <target access pattern> <action> <quota> <watermarks>
-
-You can disable schemes by simply writing an empty string to the file.
-
-Target Access Pattern
-~~~~~~~~~~~~~~~~~~~~~
-
-The ``<target access pattern>`` is constructed with three ranges in below
-form::
-
- min-size max-size min-acc max-acc min-age max-age
-
-Specifically, bytes for the size of regions (``min-size`` and ``max-size``),
-number of monitored accesses per aggregate interval for access frequency
-(``min-acc`` and ``max-acc``), number of aggregate intervals for the age of
-regions (``min-age`` and ``max-age``) are specified. Note that the ranges are
-closed interval.
-
-Action
-~~~~~~
-
-The ``<action>`` is a predefined integer for memory management actions, which
-DAMON will apply to the regions having the target access pattern. The
-supported numbers and their meanings are as below.
-
- - 0: Call ``madvise()`` for the region with ``MADV_WILLNEED``. Ignored if
- ``target`` is ``paddr``.
- - 1: Call ``madvise()`` for the region with ``MADV_COLD``. Ignored if
- ``target`` is ``paddr``.
- - 2: Call ``madvise()`` for the region with ``MADV_PAGEOUT``.
- - 3: Call ``madvise()`` for the region with ``MADV_HUGEPAGE``. Ignored if
- ``target`` is ``paddr``.
- - 4: Call ``madvise()`` for the region with ``MADV_NOHUGEPAGE``. Ignored if
- ``target`` is ``paddr``.
- - 5: Do nothing but count the statistics
-
-Quota
-~~~~~
-
-Optimal ``target access pattern`` for each ``action`` is workload dependent, so
-not easy to find. Worse yet, setting a scheme of some action too aggressive
-can cause severe overhead. To avoid such overhead, users can limit time and
-size quota for the scheme via the ``<quota>`` in below form::
-
- <ms> <sz> <reset interval> <priority weights>
-
-This makes DAMON to try to use only up to ``<ms>`` milliseconds for applying
-the action to memory regions of the ``target access pattern`` within the
-``<reset interval>`` milliseconds, and to apply the action to only up to
-``<sz>`` bytes of memory regions within the ``<reset interval>``. Setting both
-``<ms>`` and ``<sz>`` zero disables the quota limits.
-
-When the quota limit is expected to be exceeded, DAMON prioritizes found memory
-regions of the ``target access pattern`` based on their size, access frequency,
-and age. For personalized prioritization, users can set the weights for the
-three properties in ``<priority weights>`` in below form::
-
- <size weight> <access frequency weight> <age weight>
-
-Watermarks
-~~~~~~~~~~
-
-Some schemes would need to run based on current value of the system's specific
-metrics like free memory ratio. For such cases, users can specify watermarks
-for the condition.::
-
- <metric> <check interval> <high mark> <middle mark> <low mark>
-
-``<metric>`` is a predefined integer for the metric to be checked. The
-supported numbers and their meanings are as below.
-
- - 0: Ignore the watermarks
- - 1: System's free memory rate (per thousand)
-
-The value of the metric is checked every ``<check interval>`` microseconds.
-
-If the value is higher than ``<high mark>`` or lower than ``<low mark>``, the
-scheme is deactivated. If the value is lower than ``<mid mark>``, the scheme
-is activated.
-
-.. _damos_stats:
-
-Statistics
-~~~~~~~~~~
-
-It also counts the total number and bytes of regions that each scheme is tried
-to be applied, the two numbers for the regions that each scheme is successfully
-applied, and the total number of the quota limit exceeds. This statistics can
-be used for online analysis or tuning of the schemes.
-
-The statistics can be shown by reading the ``schemes`` file. Reading the file
-will show each scheme you entered in each line, and the five numbers for the
-statistics will be added at the end of each line.
-
-Example
-~~~~~~~
-
-Below commands applies a scheme saying "If a memory region of size in [4KiB,
-8KiB] is showing accesses per aggregate interval in [0, 5] for aggregate
-interval in [10, 20], page out the region. For the paging out, use only up to
-10ms per second, and also don't page out more than 1GiB per second. Under the
-limitation, page out memory regions having longer age first. Also, check the
-free memory rate of the system every 5 seconds, start the monitoring and paging
-out when the free memory rate becomes lower than 50%, but stop it if the free
-memory rate becomes larger than 60%, or lower than 30%".::
-
- # cd <debugfs>/damon
- # scheme="4096 8192 0 5 10 20 2" # target access pattern and action
- # scheme+=" 10 $((1024*1024*1024)) 1000" # quotas
- # scheme+=" 0 0 100" # prioritization weights
- # scheme+=" 1 5000000 600 500 300" # watermarks
- # echo "$scheme" > schemes
-
-
-Turning On/Off
---------------
-
-Setting the files as described above doesn't incur effect unless you explicitly
-start the monitoring. You can start, stop, and check the current status of the
-monitoring by writing to and reading from the ``monitor_on`` file. Writing
-``on`` to the file starts the monitoring of the targets with the attributes.
-Writing ``off`` to the file stops those. DAMON also stops if every target
-process is terminated. Below example commands turn on, off, and check the
-status of DAMON::
-
- # cd <debugfs>/damon
- # echo on > monitor_on
- # echo off > monitor_on
- # cat monitor_on
- off
-
-Please note that you cannot write to the above-mentioned debugfs files while
-the monitoring is turned on. If you write to the files while DAMON is running,
-an error code such as ``-EBUSY`` will be returned.
-
-
-Monitoring Thread PID
----------------------
-
-DAMON does requested monitoring with a kernel thread called ``kdamond``. You
-can get the pid of the thread by reading the ``kdamond_pid`` file. When the
-monitoring is turned off, reading the file returns ``none``. ::
-
- # cd <debugfs>/damon
- # cat monitor_on
- off
- # cat kdamond_pid
- none
- # echo on > monitor_on
- # cat kdamond_pid
- 18594
-
-
-Using Multiple Monitoring Threads
----------------------------------
-
-One ``kdamond`` thread is created for each monitoring context. You can create
-and remove monitoring contexts for multiple ``kdamond`` required use case using
-the ``mk_contexts`` and ``rm_contexts`` files.
-
-Writing the name of the new context to the ``mk_contexts`` file creates a
-directory of the name on the DAMON debugfs directory. The directory will have
-DAMON debugfs files for the context. ::
-
- # cd <debugfs>/damon
- # ls foo
- # ls: cannot access 'foo': No such file or directory
- # echo foo > mk_contexts
- # ls foo
- # attrs init_regions kdamond_pid schemes target_ids
-
-If the context is not needed anymore, you can remove it and the corresponding
-directory by putting the name of the context to the ``rm_contexts`` file. ::
-
- # echo foo > rm_contexts
- # ls foo
- # ls: cannot access 'foo': No such file or directory
-
-Note that ``mk_contexts``, ``rm_contexts``, and ``monitor_on`` files are in the
-root directory only.
-
-
.. _tracepoint:
-Tracepoint for Monitoring Results
-=================================
+Tracepoints for Monitoring Results
+==================================
+
+Users can get the monitoring results via the :ref:`tried_regions
+<sysfs_schemes_tried_regions>`. The interface is useful for getting a
+snapshot, but it could be inefficient for fully recording all the monitoring
+results. For the purpose, two trace points, namely ``damon:damon_aggregated``
+and ``damon:damos_before_apply``, are provided. ``damon:damon_aggregated``
+provides the whole monitoring results, while ``damon:damos_before_apply``
+provides the monitoring results for regions that each DAMON-based Operation
+Scheme (:ref:`DAMOS <damon_design_damos>`) is gonna be applied. Hence,
+``damon:damos_before_apply`` is more useful for recording internal behavior of
+DAMOS, or DAMOS target access
+:ref:`pattern <damon_design_damos_access_pattern>` based query-like efficient
+monitoring results recording.
+
+While the monitoring is turned on, you could record the tracepoint events and
+show results using tracepoint supporting tools like ``perf``. For example::
-DAMON provides the monitoring results via a tracepoint,
-``damon:damon_aggregated``. While the monitoring is turned on, you could
-record the tracepoint events and show results using tracepoint supporting tools
-like ``perf``. For example::
-
- # echo on > monitor_on
+ # echo on > kdamonds/0/state
# perf record -e damon:damon_aggregated &
# sleep 5
# kill 9 $(pidof perf)
- # echo off > monitor_on
+ # echo off > kdamonds/0/state
# perf script
+ kdamond.0 46568 [027] 79357.842179: damon:damon_aggregated: target_id=0 nr_regions=11 122509119488-135708762112: 0 864
+ [...]
+
+Each line of the perf script output represents each monitoring region. The
+first five fields are as usual other tracepoint outputs. The sixth field
+(``target_id=X``) shows the ide of the monitoring target of the region. The
+seventh field (``nr_regions=X``) shows the total number of monitoring regions
+for the target. The eighth field (``X-Y:``) shows the start (``X``) and end
+(``Y``) addresses of the region in bytes. The ninth field (``X``) shows the
+``nr_accesses`` of the region (refer to
+:ref:`design <damon_design_region_based_sampling>` for more details of the
+counter). Finally the tenth field (``X``) shows the ``age`` of the region
+(refer to :ref:`design <damon_design_age_tracking>` for more details of the
+counter).
+
+If the event was ``damon:damos_beofre_apply``, the ``perf script`` output would
+be somewhat like below::
+
+ kdamond.0 47293 [000] 80801.060214: damon:damos_before_apply: ctx_idx=0 scheme_idx=0 target_idx=0 nr_regions=11 121932607488-135128711168: 0 136
+ [...]
+
+Each line of the output represents each monitoring region that each DAMON-based
+Operation Scheme was about to be applied at the traced time. The first five
+fields are as usual. It shows the index of the DAMON context (``ctx_idx=X``)
+of the scheme in the list of the contexts of the context's kdamond, the index
+of the scheme (``scheme_idx=X``) in the list of the schemes of the context, in
+addition to the output of ``damon_aggregated`` tracepoint.
diff --git a/Documentation/admin-guide/mm/hugetlbpage.rst b/Documentation/admin-guide/mm/hugetlbpage.rst
index e4d4b4a8dc97..67a941903fd2 100644
--- a/Documentation/admin-guide/mm/hugetlbpage.rst
+++ b/Documentation/admin-guide/mm/hugetlbpage.rst
@@ -145,7 +145,17 @@ hugepages
It will allocate 1 2M hugepage on node0 and 2 2M hugepages on node1.
If the node number is invalid, the parameter will be ignored.
+hugepage_alloc_threads
+ Specify the number of threads that should be used to allocate hugepages
+ during boot. This parameter can be used to improve system bootup time
+ when allocating a large amount of huge pages.
+ The default value is 25% of the available hardware threads.
+ Example to use 8 allocation threads::
+
+ hugepage_alloc_threads=8
+
+ Note that this parameter only applies to non-gigantic huge pages.
default_hugepagesz
Specify the default huge page size. This parameter can
only be specified once on the command line. default_hugepagesz can
@@ -376,6 +386,13 @@ Note that the number of overcommit and reserve pages remain global quantities,
as we don't know until fault time, when the faulting task's mempolicy is
applied, from which node the huge page allocation will be attempted.
+The hugetlb may be migrated between the per-node hugepages pool in the following
+scenarios: memory offline, memory failure, longterm pinning, syscalls(mbind,
+migrate_pages and move_pages), alloc_contig_range() and alloc_contig_pages().
+Now only memory offline, memory failure and syscalls allow fallbacking to allocate
+a new hugetlb on a different node if the current node is unable to allocate during
+hugetlb migration, that means these 3 cases can break the per-node hugepages pool.
+
.. _using_huge_pages:
Using Huge Pages
diff --git a/Documentation/admin-guide/mm/index.rst b/Documentation/admin-guide/mm/index.rst
index 1f883abf3f00..bbb563cba5d2 100644
--- a/Documentation/admin-guide/mm/index.rst
+++ b/Documentation/admin-guide/mm/index.rst
@@ -10,7 +10,7 @@ processes address space and many other cool things.
Linux memory management is a complex system with many configurable
settings. Most of these settings are available via ``/proc``
-filesystem and can be quired and adjusted using ``sysctl``. These APIs
+filesystem and can be queried and adjusted using ``sysctl``. These APIs
are described in Documentation/admin-guide/sysctl/vm.rst and in `man 5 proc`_.
.. _man 5 proc: http://man7.org/linux/man-pages/man5/proc.5.html
@@ -37,8 +37,9 @@ the Linux memory management.
numaperf
pagemap
shrinker_debugfs
+ slab
soft-dirty
- swap_numa
transhuge
userfaultfd
zswap
+ kho
diff --git a/Documentation/admin-guide/mm/kho.rst b/Documentation/admin-guide/mm/kho.rst
new file mode 100644
index 000000000000..6dc18ed4b886
--- /dev/null
+++ b/Documentation/admin-guide/mm/kho.rst
@@ -0,0 +1,115 @@
+.. SPDX-License-Identifier: GPL-2.0-or-later
+
+====================
+Kexec Handover Usage
+====================
+
+Kexec HandOver (KHO) is a mechanism that allows Linux to preserve memory
+regions, which could contain serialized system states, across kexec.
+
+This document expects that you are familiar with the base KHO
+:ref:`concepts <kho-concepts>`. If you have not read
+them yet, please do so now.
+
+Prerequisites
+=============
+
+KHO is available when the kernel is compiled with ``CONFIG_KEXEC_HANDOVER``
+set to y. Every KHO producer may have its own config option that you
+need to enable if you would like to preserve their respective state across
+kexec.
+
+To use KHO, please boot the kernel with the ``kho=on`` command line
+parameter. You may use ``kho_scratch`` parameter to define size of the
+scratch regions. For example ``kho_scratch=16M,512M,256M`` will reserve a
+16 MiB low memory scratch area, a 512 MiB global scratch region, and 256 MiB
+per NUMA node scratch regions on boot.
+
+Perform a KHO kexec
+===================
+
+First, before you perform a KHO kexec, you need to move the system into
+the :ref:`KHO finalization phase <kho-finalization-phase>` ::
+
+ $ echo 1 > /sys/kernel/debug/kho/out/finalize
+
+After this command, the KHO FDT is available in
+``/sys/kernel/debug/kho/out/fdt``. Other subsystems may also register
+their own preserved sub FDTs under
+``/sys/kernel/debug/kho/out/sub_fdts/``.
+
+Next, load the target payload and kexec into it. It is important that you
+use the ``-s`` parameter to use the in-kernel kexec file loader, as user
+space kexec tooling currently has no support for KHO with the user space
+based file loader ::
+
+ # kexec -l /path/to/bzImage --initrd /path/to/initrd -s
+ # kexec -e
+
+The new kernel will boot up and contain some of the previous kernel's state.
+
+For example, if you used ``reserve_mem`` command line parameter to create
+an early memory reservation, the new kernel will have that memory at the
+same physical address as the old kernel.
+
+Abort a KHO exec
+================
+
+You can move the system out of KHO finalization phase again by calling ::
+
+ $ echo 0 > /sys/kernel/debug/kho/out/active
+
+After this command, the KHO FDT is no longer available in
+``/sys/kernel/debug/kho/out/fdt``.
+
+debugfs Interfaces
+==================
+
+Currently KHO creates the following debugfs interfaces. Notice that these
+interfaces may change in the future. They will be moved to sysfs once KHO is
+stabilized.
+
+``/sys/kernel/debug/kho/out/finalize``
+ Kexec HandOver (KHO) allows Linux to transition the state of
+ compatible drivers into the next kexec'ed kernel. To do so,
+ device drivers will instruct KHO to preserve memory regions,
+ which could contain serialized kernel state.
+ While the state is serialized, they are unable to perform
+ any modifications to state that was serialized, such as
+ handed over memory allocations.
+
+ When this file contains "1", the system is in the transition
+ state. When contains "0", it is not. To switch between the
+ two states, echo the respective number into this file.
+
+``/sys/kernel/debug/kho/out/fdt``
+ When KHO state tree is finalized, the kernel exposes the
+ flattened device tree blob that carries its current KHO
+ state in this file. Kexec user space tooling can use this
+ as input file for the KHO payload image.
+
+``/sys/kernel/debug/kho/out/scratch_len``
+ Lengths of KHO scratch regions, which are physically contiguous
+ memory regions that will always stay available for future kexec
+ allocations. Kexec user space tools can use this file to determine
+ where it should place its payload images.
+
+``/sys/kernel/debug/kho/out/scratch_phys``
+ Physical locations of KHO scratch regions. Kexec user space tools
+ can use this file in conjunction to scratch_phys to determine where
+ it should place its payload images.
+
+``/sys/kernel/debug/kho/out/sub_fdts/``
+ In the KHO finalization phase, KHO producers register their own
+ FDT blob under this directory.
+
+``/sys/kernel/debug/kho/in/fdt``
+ When the kernel was booted with Kexec HandOver (KHO),
+ the state tree that carries metadata about the previous
+ kernel's state is in this file in the format of flattened
+ device tree. This file may disappear when all consumers of
+ it finished to interpret their metadata.
+
+``/sys/kernel/debug/kho/in/sub_fdts/``
+ Similar to ``kho/out/sub_fdts/``, but contains sub FDT blobs
+ of KHO producers passed from the old kernel.
diff --git a/Documentation/admin-guide/mm/ksm.rst b/Documentation/admin-guide/mm/ksm.rst
index 7626392fe82c..ad8e7a41f3b5 100644
--- a/Documentation/admin-guide/mm/ksm.rst
+++ b/Documentation/admin-guide/mm/ksm.rst
@@ -80,6 +80,9 @@ pages_to_scan
how many pages to scan before ksmd goes to sleep
e.g. ``echo 100 > /sys/kernel/mm/ksm/pages_to_scan``.
+ The pages_to_scan value cannot be changed if ``advisor_mode`` has
+ been set to scan-time.
+
Default: 100 (chosen for demonstration purposes)
sleep_millisecs
@@ -155,10 +158,44 @@ stable_node_chains_prune_millisecs
scan. It's a noop if not a single KSM page hit the
``max_page_sharing`` yet.
+smart_scan
+ Historically KSM checked every candidate page for each scan. It did
+ not take into account historic information. When smart scan is
+ enabled, pages that have previously not been de-duplicated get
+ skipped. How often these pages are skipped depends on how often
+ de-duplication has already been tried and failed. By default this
+ optimization is enabled. The ``pages_skipped`` metric shows how
+ effective the setting is.
+
+advisor_mode
+ The ``advisor_mode`` selects the current advisor. Two modes are
+ supported: none and scan-time. The default is none. By setting
+ ``advisor_mode`` to scan-time, the scan time advisor is enabled.
+ The section about ``advisor`` explains in detail how the scan time
+ advisor works.
+
+adivsor_max_cpu
+ specifies the upper limit of the cpu percent usage of the ksmd
+ background thread. The default is 70.
+
+advisor_target_scan_time
+ specifies the target scan time in seconds to scan all the candidate
+ pages. The default value is 200 seconds.
+
+advisor_min_pages_to_scan
+ specifies the lower limit of the ``pages_to_scan`` parameter of the
+ scan time advisor. The default is 500.
+
+adivsor_max_pages_to_scan
+ specifies the upper limit of the ``pages_to_scan`` parameter of the
+ scan time advisor. The default is 30000.
+
The effectiveness of KSM and MADV_MERGEABLE is shown in ``/sys/kernel/mm/ksm/``:
general_profit
how effective is KSM. The calculation is explained below.
+pages_scanned
+ how many pages are being scanned for ksm
pages_shared
how many shared pages are being used
pages_sharing
@@ -167,12 +204,21 @@ pages_unshared
how many pages unique but repeatedly checked for merging
pages_volatile
how many pages changing too fast to be placed in a tree
+pages_skipped
+ how many pages did the "smart" page scanning algorithm skip
full_scans
how many times all mergeable areas have been scanned
stable_node_chains
the number of KSM pages that hit the ``max_page_sharing`` limit
stable_node_dups
number of duplicated KSM pages
+ksm_zero_pages
+ how many zero pages that are still mapped into processes were mapped by
+ KSM when deduplicating.
+
+When ``use_zero_pages`` is/was enabled, the sum of ``pages_sharing`` +
+``ksm_zero_pages`` represents the actual number of pages saved by KSM.
+if ``use_zero_pages`` has never been enabled, ``ksm_zero_pages`` is 0.
A high ratio of ``pages_sharing`` to ``pages_shared`` indicates good
sharing, but a high ratio of ``pages_unshared`` to ``pages_sharing``
@@ -196,21 +242,25 @@ several times, which are unprofitable memory consumed.
1) How to determine whether KSM save memory or consume memory in system-wide
range? Here is a simple approximate calculation for reference::
- general_profit =~ pages_sharing * sizeof(page) - (all_rmap_items) *
+ general_profit =~ ksm_saved_pages * sizeof(page) - (all_rmap_items) *
sizeof(rmap_item);
- where all_rmap_items can be easily obtained by summing ``pages_sharing``,
- ``pages_shared``, ``pages_unshared`` and ``pages_volatile``.
+ where ksm_saved_pages equals to the sum of ``pages_sharing`` +
+ ``ksm_zero_pages`` of the system, and all_rmap_items can be easily
+ obtained by summing ``pages_sharing``, ``pages_shared``, ``pages_unshared``
+ and ``pages_volatile``.
2) The KSM profit inner a single process can be similarly obtained by the
following approximate calculation::
- process_profit =~ ksm_merging_pages * sizeof(page) -
+ process_profit =~ ksm_saved_pages * sizeof(page) -
ksm_rmap_items * sizeof(rmap_item).
- where ksm_merging_pages is shown under the directory ``/proc/<pid>/``,
- and ksm_rmap_items is shown in ``/proc/<pid>/ksm_stat``. The process profit
- is also shown in ``/proc/<pid>/ksm_stat`` as ksm_process_profit.
+ where ksm_saved_pages equals to the sum of ``ksm_merging_pages`` and
+ ``ksm_zero_pages``, both of which are shown under the directory
+ ``/proc/<pid>/ksm_stat``, and ksm_rmap_items is also shown in
+ ``/proc/<pid>/ksm_stat``. The process profit is also shown in
+ ``/proc/<pid>/ksm_stat`` as ksm_process_profit.
From the perspective of application, a high ratio of ``ksm_rmap_items`` to
``ksm_merging_pages`` means a bad madvise-applied policy, so developers or
@@ -239,6 +289,35 @@ ksm_swpin_copy
note that KSM page might be copied when swapping in because do_swap_page()
cannot do all the locking needed to reconstitute a cross-anon_vma KSM page.
+Advisor
+=======
+
+The number of candidate pages for KSM is dynamic. It can be often observed
+that during the startup of an application more candidate pages need to be
+processed. Without an advisor the ``pages_to_scan`` parameter needs to be
+sized for the maximum number of candidate pages. The scan time advisor can
+changes the ``pages_to_scan`` parameter based on demand.
+
+The advisor can be enabled, so KSM can automatically adapt to changes in the
+number of candidate pages to scan. Two advisors are implemented: none and
+scan-time. With none, no advisor is enabled. The default is none.
+
+The scan time advisor changes the ``pages_to_scan`` parameter based on the
+observed scan times. The possible values for the ``pages_to_scan`` parameter is
+limited by the ``advisor_max_cpu`` parameter. In addition there is also the
+``advisor_target_scan_time`` parameter. This parameter sets the target time to
+scan all the KSM candidate pages. The parameter ``advisor_target_scan_time``
+decides how aggressive the scan time advisor scans candidate pages. Lower
+values make the scan time advisor to scan more aggressively. This is the most
+important parameter for the configuration of the scan time advisor.
+
+The initial value and the maximum value can be changed with
+``advisor_min_pages_to_scan`` and ``advisor_max_pages_to_scan``. The default
+values are sufficient for most workloads and use cases.
+
+The ``pages_to_scan`` parameter is re-calculated after a scan has been completed.
+
+
--
Izik Eidus,
Hugh Dickins, 17 Nov 2009
diff --git a/Documentation/admin-guide/mm/memory-hotplug.rst b/Documentation/admin-guide/mm/memory-hotplug.rst
index 1b02fe5807cc..33c886f3d198 100644
--- a/Documentation/admin-guide/mm/memory-hotplug.rst
+++ b/Documentation/admin-guide/mm/memory-hotplug.rst
@@ -33,7 +33,7 @@ used to expose persistent memory, other performance-differentiated memory and
reserved memory regions as ordinary system RAM to Linux.
Linux only supports memory hot(un)plug on selected 64 bit architectures, such as
-x86_64, arm64, ppc64, s390x and ia64.
+x86_64, arm64, ppc64 and s390x.
Memory Hot(Un)Plug Granularity
------------------------------
@@ -75,7 +75,7 @@ Memory hotunplug consists of two phases:
(1) Offlining memory blocks
(2) Removing the memory from Linux
-In the fist phase, memory is "hidden" from the page allocator again, for
+In the first phase, memory is "hidden" from the page allocator again, for
example, by migrating busy memory to other memory locations and removing all
relevant free pages from the page allocator After this phase, the memory is no
longer visible in memory statistics of the system.
@@ -250,15 +250,15 @@ Observing the State of Memory Blocks
The state (online/offline/going-offline) of a memory block can be observed
either via::
- % cat /sys/device/system/memory/memoryXXX/state
+ % cat /sys/devices/system/memory/memoryXXX/state
Or alternatively (1/0) via::
- % cat /sys/device/system/memory/memoryXXX/online
+ % cat /sys/devices/system/memory/memoryXXX/online
For an online memory block, the managing zone can be observed via::
- % cat /sys/device/system/memory/memoryXXX/valid_zones
+ % cat /sys/devices/system/memory/memoryXXX/valid_zones
Configuring Memory Hot(Un)Plug
==============================
@@ -280,8 +280,8 @@ The following files are currently defined:
blocks; configure auto-onlining.
The default value depends on the
- CONFIG_MEMORY_HOTPLUG_DEFAULT_ONLINE kernel configuration
- option.
+ CONFIG_MHP_DEFAULT_ONLINE_TYPE kernel configuration
+ options.
See the ``state`` property of memory blocks for details.
``block_size_bytes`` read-only: the size in bytes of a memory block.
@@ -291,6 +291,15 @@ The following files are currently defined:
Availability depends on the CONFIG_ARCH_MEMORY_PROBE
kernel configuration option.
``uevent`` read-write: generic udev file for device subsystems.
+``crash_hotplug`` read-only: when changes to the system memory map
+ occur due to hot un/plug of memory, this file contains
+ '1' if the kernel updates the kdump capture kernel memory
+ map itself (via elfcorehdr and other relevant kexec
+ segments), or '0' if userspace must update the kdump
+ capture kernel memory map.
+
+ Availability depends on the CONFIG_MEMORY_HOTPLUG kernel
+ configuration option.
====================== =========================================================
.. note::
@@ -318,7 +327,7 @@ however, a memory block might span memory holes. A memory block spanning memory
holes cannot be offlined.
For example, assume 1 GiB memory block size. A device for a memory starting at
-0x100000000 is ``/sys/device/system/memory/memory4``::
+0x100000000 is ``/sys/devices/system/memory/memory4``::
(0x100000000 / 1Gib = 4)
@@ -433,6 +442,18 @@ The following module parameters are currently defined:
memory in a way that huge pages in bigger
granularity cannot be formed on hotplugged
memory.
+
+ With value "force" it could result in memory
+ wastage due to memmap size limitations. For
+ example, if the memmap for a memory block
+ requires 1 MiB, but the pageblock size is 2
+ MiB, 1 MiB of hotplugged memory will be wasted.
+ Note that there are still cases where the
+ feature cannot be enforced: for example, if the
+ memmap is smaller than a single page, or if the
+ architecture does not support the forced mode
+ in all configurations.
+
``online_policy`` read-write: Set the basic policy used for
automatic zone selection when onlining memory
blocks without specifying a target zone.
@@ -669,7 +690,7 @@ when still encountering permanently unmovable pages within ZONE_MOVABLE
(-> BUG), memory offlining will keep retrying until it eventually succeeds.
When offlining is triggered from user space, the offlining context can be
-terminated by sending a fatal signal. A timeout based offlining can easily be
+terminated by sending a signal. A timeout based offlining can easily be
implemented via::
% timeout $TIMEOUT offline_block | failure_handling
diff --git a/Documentation/admin-guide/mm/multigen_lru.rst b/Documentation/admin-guide/mm/multigen_lru.rst
index 33e068830497..9cb54b4ff5d9 100644
--- a/Documentation/admin-guide/mm/multigen_lru.rst
+++ b/Documentation/admin-guide/mm/multigen_lru.rst
@@ -151,8 +151,9 @@ generations less than or equal to ``min_gen_nr``.
``min_gen_nr`` should be less than ``max_gen_nr-1``, since
``max_gen_nr`` and ``max_gen_nr-1`` are not fully aged (equivalent to
the active list) and therefore cannot be evicted. ``swappiness``
-overrides the default value in ``/proc/sys/vm/swappiness``.
-``nr_to_reclaim`` limits the number of pages to evict.
+overrides the default value in ``/proc/sys/vm/swappiness`` and the valid
+range is [0-200, max], with max being exclusively used for the reclamation
+of anonymous memory. ``nr_to_reclaim`` limits the number of pages to evict.
A typical use case is that a job scheduler runs this command before it
tries to land a new job on a server. If it fails to materialize enough
diff --git a/Documentation/admin-guide/mm/numa_memory_policy.rst b/Documentation/admin-guide/mm/numa_memory_policy.rst
index 46515ad2337f..a70f20ce1ffb 100644
--- a/Documentation/admin-guide/mm/numa_memory_policy.rst
+++ b/Documentation/admin-guide/mm/numa_memory_policy.rst
@@ -109,7 +109,7 @@ VMA Policy
* A task may install a new VMA policy on a sub-range of a
previously mmap()ed region. When this happens, Linux splits
the existing virtual memory area into 2 or 3 VMAs, each with
- it's own policy.
+ its own policy.
* By default, VMA policy applies only to pages allocated after
the policy is installed. Any pages already faulted into the
@@ -250,6 +250,15 @@ MPOL_PREFERRED_MANY
can fall back to all existing numa nodes. This is effectively
MPOL_PREFERRED allowed for a mask rather than a single node.
+MPOL_WEIGHTED_INTERLEAVE
+ This mode operates the same as MPOL_INTERLEAVE, except that
+ interleaving behavior is executed based on weights set in
+ /sys/kernel/mm/mempolicy/weighted_interleave/
+
+ Weighted interleave allocates pages on nodes according to a
+ weight. For example if nodes [0,1] are weighted [5,2], 5 pages
+ will be allocated on node0 for every 2 pages allocated on node1.
+
NUMA memory policy supports the following optional mode flags:
MPOL_F_STATIC_NODES
diff --git a/Documentation/admin-guide/mm/pagemap.rst b/Documentation/admin-guide/mm/pagemap.rst
index c8f380271cad..c57e61b5d8aa 100644
--- a/Documentation/admin-guide/mm/pagemap.rst
+++ b/Documentation/admin-guide/mm/pagemap.rst
@@ -21,7 +21,8 @@ There are four components to pagemap:
* Bit 56 page exclusively mapped (since 4.2)
* Bit 57 pte is uffd-wp write-protected (since 5.13) (see
Documentation/admin-guide/mm/userfaultfd.rst)
- * Bits 58-60 zero
+ * Bit 58 pte is a guard region (since 6.15) (see madvise (2) man page)
+ * Bits 59-60 zero
* Bit 61 page is file-page or shared-anon (since 3.5)
* Bit 62 page swapped
* Bit 63 page present
@@ -37,12 +38,28 @@ There are four components to pagemap:
precisely which pages are mapped (or in swap) and comparing mapped
pages between processes.
+ Traditionally, bit 56 indicates that a page is mapped exactly once and bit
+ 56 is clear when a page is mapped multiple times, even when mapped in the
+ same process multiple times. In some kernel configurations, the semantics
+ for pages part of a larger allocation (e.g., THP) can differ: bit 56 is set
+ if all pages part of the corresponding large allocation are *certainly*
+ mapped in the same process, even if the page is mapped multiple times in that
+ process. Bit 56 is clear when any page page of the larger allocation
+ is *maybe* mapped in a different process. In some cases, a large allocation
+ might be treated as "maybe mapped by multiple processes" even though this
+ is no longer the case.
+
Efficient users of this interface will use ``/proc/pid/maps`` to
determine which areas of memory are actually mapped and llseek to
skip over unmapped regions.
* ``/proc/kpagecount``. This file contains a 64-bit count of the number of
- times each page is mapped, indexed by PFN.
+ times each page is mapped, indexed by PFN. Some kernel configurations do
+ not track the precise number of times a page part of a larger allocation
+ (e.g., THP) is mapped. In these configurations, the average number of
+ mappings per page in this larger allocation is returned instead. However,
+ if any page of the large allocation is mapped, the returned value will
+ be at least 1.
The page-types tool in the tools/mm directory can be used to query the
number of times a page is mapped.
@@ -98,7 +115,8 @@ Short descriptions to the page flags
A free memory block managed by the buddy system allocator.
The buddy system organizes free memory in blocks of various orders.
An order N block has 2^N physically contiguous pages, with the BUDDY flag
- set for and _only_ for the first page.
+ set for all pages.
+ Before 4.6 only the first page of the block had the flag set.
15 - COMPOUND_HEAD
A compound page with order N consists of 2^N physically contiguous pages.
A compound page with order 2 takes the form of "HTTT", where H donates its
@@ -118,7 +136,7 @@ Short descriptions to the page flags
21 - KSM
Identical memory pages dynamically shared between one or more processes.
22 - THP
- Contiguous pages which construct transparent hugepages.
+ Contiguous pages which construct THP of any size and mapped by any granularity.
23 - OFFLINE
The page is logically offline.
24 - ZERO_PAGE
@@ -173,27 +191,6 @@ LRU related page flags
The page-types tool in the tools/mm directory can be used to query the
above flags.
-Using pagemap to do something useful
-====================================
-
-The general procedure for using pagemap to find out about a process' memory
-usage goes like this:
-
- 1. Read ``/proc/pid/maps`` to determine which parts of the memory space are
- mapped to what.
- 2. Select the maps you are interested in -- all of them, or a particular
- library, or the stack or the heap, etc.
- 3. Open ``/proc/pid/pagemap`` and seek to the pages you would like to examine.
- 4. Read a u64 for each page from pagemap.
- 5. Open ``/proc/kpagecount`` and/or ``/proc/kpageflags``. For each PFN you
- just read, seek to that entry in the file, and read the data you want.
-
-For example, to find the "unique set size" (USS), which is the amount of
-memory that a process is using that is not shared with any other process,
-you can go through every map in the process, find the PFNs, look those up
-in kpagecount, and tally up the number of pages that are only referenced
-once.
-
Exceptions for Shared Memory
============================
@@ -227,3 +224,94 @@ Before Linux 3.11 pagemap bits 55-60 were used for "page-shift" (which is
always 12 at most architectures). Since Linux 3.11 their meaning changes
after first clear of soft-dirty bits. Since Linux 4.2 they are used for
flags unconditionally.
+
+Pagemap Scan IOCTL
+==================
+
+The ``PAGEMAP_SCAN`` IOCTL on the pagemap file can be used to get or optionally
+clear the info about page table entries. The following operations are supported
+in this IOCTL:
+
+- Scan the address range and get the memory ranges matching the provided criteria.
+ This is performed when the output buffer is specified.
+- Write-protect the pages. The ``PM_SCAN_WP_MATCHING`` is used to write-protect
+ the pages of interest. The ``PM_SCAN_CHECK_WPASYNC`` aborts the operation if
+ non-Async Write Protected pages are found. The ``PM_SCAN_WP_MATCHING`` can be
+ used with or without ``PM_SCAN_CHECK_WPASYNC``.
+- Both of those operations can be combined into one atomic operation where we can
+ get and write protect the pages as well.
+
+Following flags about pages are currently supported:
+
+- ``PAGE_IS_WPALLOWED`` - Page has async-write-protection enabled
+- ``PAGE_IS_WRITTEN`` - Page has been written to from the time it was write protected
+- ``PAGE_IS_FILE`` - Page is file backed
+- ``PAGE_IS_PRESENT`` - Page is present in the memory
+- ``PAGE_IS_SWAPPED`` - Page is in swapped
+- ``PAGE_IS_PFNZERO`` - Page has zero PFN
+- ``PAGE_IS_HUGE`` - Page is PMD-mapped THP or Hugetlb backed
+- ``PAGE_IS_SOFT_DIRTY`` - Page is soft-dirty
+- ``PAGE_IS_GUARD`` - Page is a part of a guard region
+
+The ``struct pm_scan_arg`` is used as the argument of the IOCTL.
+
+ 1. The size of the ``struct pm_scan_arg`` must be specified in the ``size``
+ field. This field will be helpful in recognizing the structure if extensions
+ are done later.
+ 2. The flags can be specified in the ``flags`` field. The ``PM_SCAN_WP_MATCHING``
+ and ``PM_SCAN_CHECK_WPASYNC`` are the only added flags at this time. The get
+ operation is optionally performed depending upon if the output buffer is
+ provided or not.
+ 3. The range is specified through ``start`` and ``end``.
+ 4. The walk can abort before visiting the complete range such as the user buffer
+ can get full etc. The walk ending address is specified in``end_walk``.
+ 5. The output buffer of ``struct page_region`` array and size is specified in
+ ``vec`` and ``vec_len``.
+ 6. The optional maximum requested pages are specified in the ``max_pages``.
+ 7. The masks are specified in ``category_mask``, ``category_anyof_mask``,
+ ``category_inverted`` and ``return_mask``.
+
+Find pages which have been written and WP them as well::
+
+ struct pm_scan_arg arg = {
+ .size = sizeof(arg),
+ .flags = PM_SCAN_CHECK_WPASYNC | PM_SCAN_CHECK_WPASYNC,
+ ..
+ .category_mask = PAGE_IS_WRITTEN,
+ .return_mask = PAGE_IS_WRITTEN,
+ };
+
+Find pages which have been written, are file backed, not swapped and either
+present or huge::
+
+ struct pm_scan_arg arg = {
+ .size = sizeof(arg),
+ .flags = 0,
+ ..
+ .category_mask = PAGE_IS_WRITTEN | PAGE_IS_SWAPPED,
+ .category_inverted = PAGE_IS_SWAPPED,
+ .category_anyof_mask = PAGE_IS_PRESENT | PAGE_IS_HUGE,
+ .return_mask = PAGE_IS_WRITTEN | PAGE_IS_SWAPPED |
+ PAGE_IS_PRESENT | PAGE_IS_HUGE,
+ };
+
+The ``PAGE_IS_WRITTEN`` flag can be considered as a better-performing alternative
+of soft-dirty flag. It doesn't get affected by VMA merging of the kernel and hence
+the user can find the true soft-dirty pages in case of normal pages. (There may
+still be extra dirty pages reported for THP or Hugetlb pages.)
+
+"PAGE_IS_WRITTEN" category is used with uffd write protect-enabled ranges to
+implement memory dirty tracking in userspace:
+
+ 1. The userfaultfd file descriptor is created with ``userfaultfd`` syscall.
+ 2. The ``UFFD_FEATURE_WP_UNPOPULATED`` and ``UFFD_FEATURE_WP_ASYNC`` features
+ are set by ``UFFDIO_API`` IOCTL.
+ 3. The memory range is registered with ``UFFDIO_REGISTER_MODE_WP`` mode
+ through ``UFFDIO_REGISTER`` IOCTL.
+ 4. Then any part of the registered memory or the whole memory region must
+ be write protected using ``PAGEMAP_SCAN`` IOCTL with flag ``PM_SCAN_WP_MATCHING``
+ or the ``UFFDIO_WRITEPROTECT`` IOCTL can be used. Both of these perform the
+ same operation. The former is better in terms of performance.
+ 5. Now the ``PAGEMAP_SCAN`` IOCTL can be used to either just find pages which
+ have been written to since they were last marked and/or optionally write protect
+ the pages as well.
diff --git a/Documentation/admin-guide/mm/slab.rst b/Documentation/admin-guide/mm/slab.rst
new file mode 100644
index 000000000000..14429ab90611
--- /dev/null
+++ b/Documentation/admin-guide/mm/slab.rst
@@ -0,0 +1,469 @@
+========================================
+Short users guide for the slab allocator
+========================================
+
+The slab allocator includes full debugging support (when built with
+CONFIG_SLUB_DEBUG=y) but it is off by default (unless built with
+CONFIG_SLUB_DEBUG_ON=y). You can enable debugging only for selected
+slabs in order to avoid an impact on overall system performance which
+may make a bug more difficult to find.
+
+In order to switch debugging on one can add an option ``slab_debug``
+to the kernel command line. That will enable full debugging for
+all slabs.
+
+Typically one would then use the ``slabinfo`` command to get statistical
+data and perform operation on the slabs. By default ``slabinfo`` only lists
+slabs that have data in them. See "slabinfo -h" for more options when
+running the command. ``slabinfo`` can be compiled with
+::
+
+ gcc -o slabinfo tools/mm/slabinfo.c
+
+Some of the modes of operation of ``slabinfo`` require that slub debugging
+be enabled on the command line. F.e. no tracking information will be
+available without debugging on and validation can only partially
+be performed if debugging was not switched on.
+
+Some more sophisticated uses of slab_debug:
+-------------------------------------------
+
+Parameters may be given to ``slab_debug``. If none is specified then full
+debugging is enabled. Format:
+
+slab_debug=<Debug-Options>
+ Enable options for all slabs
+
+slab_debug=<Debug-Options>,<slab name1>,<slab name2>,...
+ Enable options only for select slabs (no spaces
+ after a comma)
+
+Multiple blocks of options for all slabs or selected slabs can be given, with
+blocks of options delimited by ';'. The last of "all slabs" blocks is applied
+to all slabs except those that match one of the "select slabs" block. Options
+of the first "select slabs" blocks that matches the slab's name are applied.
+
+Possible debug options are::
+
+ F Sanity checks on (enables SLAB_DEBUG_CONSISTENCY_CHECKS
+ Sorry SLAB legacy issues)
+ Z Red zoning
+ P Poisoning (object and padding)
+ U User tracking (free and alloc)
+ T Trace (please only use on single slabs)
+ A Enable failslab filter mark for the cache
+ O Switch debugging off for caches that would have
+ caused higher minimum slab orders
+ - Switch all debugging off (useful if the kernel is
+ configured with CONFIG_SLUB_DEBUG_ON)
+
+F.e. in order to boot just with sanity checks and red zoning one would specify::
+
+ slab_debug=FZ
+
+Trying to find an issue in the dentry cache? Try::
+
+ slab_debug=,dentry
+
+to only enable debugging on the dentry cache. You may use an asterisk at the
+end of the slab name, in order to cover all slabs with the same prefix. For
+example, here's how you can poison the dentry cache as well as all kmalloc
+slabs::
+
+ slab_debug=P,kmalloc-*,dentry
+
+Red zoning and tracking may realign the slab. We can just apply sanity checks
+to the dentry cache with::
+
+ slab_debug=F,dentry
+
+Debugging options may require the minimum possible slab order to increase as
+a result of storing the metadata (for example, caches with PAGE_SIZE object
+sizes). This has a higher likelihood of resulting in slab allocation errors
+in low memory situations or if there's high fragmentation of memory. To
+switch off debugging for such caches by default, use::
+
+ slab_debug=O
+
+You can apply different options to different list of slab names, using blocks
+of options. This will enable red zoning for dentry and user tracking for
+kmalloc. All other slabs will not get any debugging enabled::
+
+ slab_debug=Z,dentry;U,kmalloc-*
+
+You can also enable options (e.g. sanity checks and poisoning) for all caches
+except some that are deemed too performance critical and don't need to be
+debugged by specifying global debug options followed by a list of slab names
+with "-" as options::
+
+ slab_debug=FZ;-,zs_handle,zspage
+
+The state of each debug option for a slab can be found in the respective files
+under::
+
+ /sys/kernel/slab/<slab name>/
+
+If the file contains 1, the option is enabled, 0 means disabled. The debug
+options from the ``slab_debug`` parameter translate to the following files::
+
+ F sanity_checks
+ Z red_zone
+ P poison
+ U store_user
+ T trace
+ A failslab
+
+failslab file is writable, so writing 1 or 0 will enable or disable
+the option at runtime. Write returns -EINVAL if cache is an alias.
+Careful with tracing: It may spew out lots of information and never stop if
+used on the wrong slab.
+
+Slab merging
+============
+
+If no debug options are specified then SLUB may merge similar slabs together
+in order to reduce overhead and increase cache hotness of objects.
+``slabinfo -a`` displays which slabs were merged together.
+
+Slab validation
+===============
+
+SLUB can validate all object if the kernel was booted with slab_debug. In
+order to do so you must have the ``slabinfo`` tool. Then you can do
+::
+
+ slabinfo -v
+
+which will test all objects. Output will be generated to the syslog.
+
+This also works in a more limited way if boot was without slab debug.
+In that case ``slabinfo -v`` simply tests all reachable objects. Usually
+these are in the cpu slabs and the partial slabs. Full slabs are not
+tracked by SLUB in a non debug situation.
+
+Getting more performance
+========================
+
+To some degree SLUB's performance is limited by the need to take the
+list_lock once in a while to deal with partial slabs. That overhead is
+governed by the order of the allocation for each slab. The allocations
+can be influenced by kernel parameters:
+
+.. slab_min_objects=x (default: automatically scaled by number of cpus)
+.. slab_min_order=x (default 0)
+.. slab_max_order=x (default 3 (PAGE_ALLOC_COSTLY_ORDER))
+
+``slab_min_objects``
+ allows to specify how many objects must at least fit into one
+ slab in order for the allocation order to be acceptable. In
+ general slub will be able to perform this number of
+ allocations on a slab without consulting centralized resources
+ (list_lock) where contention may occur.
+
+``slab_min_order``
+ specifies a minimum order of slabs. A similar effect like
+ ``slab_min_objects``.
+
+``slab_max_order``
+ specified the order at which ``slab_min_objects`` should no
+ longer be checked. This is useful to avoid SLUB trying to
+ generate super large order pages to fit ``slab_min_objects``
+ of a slab cache with large object sizes into one high order
+ page. Setting command line parameter
+ ``debug_guardpage_minorder=N`` (N > 0), forces setting
+ ``slab_max_order`` to 0, what cause minimum possible order of
+ slabs allocation.
+
+``slab_strict_numa``
+ Enables the application of memory policies on each
+ allocation. This results in more accurate placement of
+ objects which may result in the reduction of accesses
+ to remote nodes. The default is to only apply memory
+ policies at the folio level when a new folio is acquired
+ or a folio is retrieved from the lists. Enabling this
+ option reduces the fastpath performance of the slab allocator.
+
+SLUB Debug output
+=================
+
+Here is a sample of slub debug output::
+
+ ====================================================================
+ BUG kmalloc-8: Right Redzone overwritten
+ --------------------------------------------------------------------
+
+ INFO: 0xc90f6d28-0xc90f6d2b. First byte 0x00 instead of 0xcc
+ INFO: Slab 0xc528c530 flags=0x400000c3 inuse=61 fp=0xc90f6d58
+ INFO: Object 0xc90f6d20 @offset=3360 fp=0xc90f6d58
+ INFO: Allocated in get_modalias+0x61/0xf5 age=53 cpu=1 pid=554
+
+ Bytes b4 (0xc90f6d10): 00 00 00 00 00 00 00 00 5a 5a 5a 5a 5a 5a 5a 5a ........ZZZZZZZZ
+ Object (0xc90f6d20): 31 30 31 39 2e 30 30 35 1019.005
+ Redzone (0xc90f6d28): 00 cc cc cc .
+ Padding (0xc90f6d50): 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZ
+
+ [<c010523d>] dump_trace+0x63/0x1eb
+ [<c01053df>] show_trace_log_lvl+0x1a/0x2f
+ [<c010601d>] show_trace+0x12/0x14
+ [<c0106035>] dump_stack+0x16/0x18
+ [<c017e0fa>] object_err+0x143/0x14b
+ [<c017e2cc>] check_object+0x66/0x234
+ [<c017eb43>] __slab_free+0x239/0x384
+ [<c017f446>] kfree+0xa6/0xc6
+ [<c02e2335>] get_modalias+0xb9/0xf5
+ [<c02e23b7>] dmi_dev_uevent+0x27/0x3c
+ [<c027866a>] dev_uevent+0x1ad/0x1da
+ [<c0205024>] kobject_uevent_env+0x20a/0x45b
+ [<c020527f>] kobject_uevent+0xa/0xf
+ [<c02779f1>] store_uevent+0x4f/0x58
+ [<c027758e>] dev_attr_store+0x29/0x2f
+ [<c01bec4f>] sysfs_write_file+0x16e/0x19c
+ [<c0183ba7>] vfs_write+0xd1/0x15a
+ [<c01841d7>] sys_write+0x3d/0x72
+ [<c0104112>] sysenter_past_esp+0x5f/0x99
+ [<b7f7b410>] 0xb7f7b410
+ =======================
+
+ FIX kmalloc-8: Restoring Redzone 0xc90f6d28-0xc90f6d2b=0xcc
+
+If SLUB encounters a corrupted object (full detection requires the kernel
+to be booted with slab_debug) then the following output will be dumped
+into the syslog:
+
+1. Description of the problem encountered
+
+ This will be a message in the system log starting with::
+
+ ===============================================
+ BUG <slab cache affected>: <What went wrong>
+ -----------------------------------------------
+
+ INFO: <corruption start>-<corruption_end> <more info>
+ INFO: Slab <address> <slab information>
+ INFO: Object <address> <object information>
+ INFO: Allocated in <kernel function> age=<jiffies since alloc> cpu=<allocated by
+ cpu> pid=<pid of the process>
+ INFO: Freed in <kernel function> age=<jiffies since free> cpu=<freed by cpu>
+ pid=<pid of the process>
+
+ (Object allocation / free information is only available if SLAB_STORE_USER is
+ set for the slab. slab_debug sets that option)
+
+2. The object contents if an object was involved.
+
+ Various types of lines can follow the BUG SLUB line:
+
+ Bytes b4 <address> : <bytes>
+ Shows a few bytes before the object where the problem was detected.
+ Can be useful if the corruption does not stop with the start of the
+ object.
+
+ Object <address> : <bytes>
+ The bytes of the object. If the object is inactive then the bytes
+ typically contain poison values. Any non-poison value shows a
+ corruption by a write after free.
+
+ Redzone <address> : <bytes>
+ The Redzone following the object. The Redzone is used to detect
+ writes after the object. All bytes should always have the same
+ value. If there is any deviation then it is due to a write after
+ the object boundary.
+
+ (Redzone information is only available if SLAB_RED_ZONE is set.
+ slab_debug sets that option)
+
+ Padding <address> : <bytes>
+ Unused data to fill up the space in order to get the next object
+ properly aligned. In the debug case we make sure that there are
+ at least 4 bytes of padding. This allows the detection of writes
+ before the object.
+
+3. A stackdump
+
+ The stackdump describes the location where the error was detected. The cause
+ of the corruption is may be more likely found by looking at the function that
+ allocated or freed the object.
+
+4. Report on how the problem was dealt with in order to ensure the continued
+ operation of the system.
+
+ These are messages in the system log beginning with::
+
+ FIX <slab cache affected>: <corrective action taken>
+
+ In the above sample SLUB found that the Redzone of an active object has
+ been overwritten. Here a string of 8 characters was written into a slab that
+ has the length of 8 characters. However, a 8 character string needs a
+ terminating 0. That zero has overwritten the first byte of the Redzone field.
+ After reporting the details of the issue encountered the FIX SLUB message
+ tells us that SLUB has restored the Redzone to its proper value and then
+ system operations continue.
+
+Emergency operations
+====================
+
+Minimal debugging (sanity checks alone) can be enabled by booting with::
+
+ slab_debug=F
+
+This will be generally be enough to enable the resiliency features of slub
+which will keep the system running even if a bad kernel component will
+keep corrupting objects. This may be important for production systems.
+Performance will be impacted by the sanity checks and there will be a
+continual stream of error messages to the syslog but no additional memory
+will be used (unlike full debugging).
+
+No guarantees. The kernel component still needs to be fixed. Performance
+may be optimized further by locating the slab that experiences corruption
+and enabling debugging only for that cache
+
+I.e.::
+
+ slab_debug=F,dentry
+
+If the corruption occurs by writing after the end of the object then it
+may be advisable to enable a Redzone to avoid corrupting the beginning
+of other objects::
+
+ slab_debug=FZ,dentry
+
+Extended slabinfo mode and plotting
+===================================
+
+The ``slabinfo`` tool has a special 'extended' ('-X') mode that includes:
+ - Slabcache Totals
+ - Slabs sorted by size (up to -N <num> slabs, default 1)
+ - Slabs sorted by loss (up to -N <num> slabs, default 1)
+
+Additionally, in this mode ``slabinfo`` does not dynamically scale
+sizes (G/M/K) and reports everything in bytes (this functionality is
+also available to other slabinfo modes via '-B' option) which makes
+reporting more precise and accurate. Moreover, in some sense the `-X'
+mode also simplifies the analysis of slabs' behaviour, because its
+output can be plotted using the ``slabinfo-gnuplot.sh`` script. So it
+pushes the analysis from looking through the numbers (tons of numbers)
+to something easier -- visual analysis.
+
+To generate plots:
+
+a) collect slabinfo extended records, for example::
+
+ while [ 1 ]; do slabinfo -X >> FOO_STATS; sleep 1; done
+
+b) pass stats file(-s) to ``slabinfo-gnuplot.sh`` script::
+
+ slabinfo-gnuplot.sh FOO_STATS [FOO_STATS2 .. FOO_STATSN]
+
+ The ``slabinfo-gnuplot.sh`` script will pre-processes the collected records
+ and generates 3 png files (and 3 pre-processing cache files) per STATS
+ file:
+ - Slabcache Totals: FOO_STATS-totals.png
+ - Slabs sorted by size: FOO_STATS-slabs-by-size.png
+ - Slabs sorted by loss: FOO_STATS-slabs-by-loss.png
+
+Another use case, when ``slabinfo-gnuplot.sh`` can be useful, is when you
+need to compare slabs' behaviour "prior to" and "after" some code
+modification. To help you out there, ``slabinfo-gnuplot.sh`` script
+can 'merge' the `Slabcache Totals` sections from different
+measurements. To visually compare N plots:
+
+a) Collect as many STATS1, STATS2, .. STATSN files as you need::
+
+ while [ 1 ]; do slabinfo -X >> STATS<X>; sleep 1; done
+
+b) Pre-process those STATS files::
+
+ slabinfo-gnuplot.sh STATS1 STATS2 .. STATSN
+
+c) Execute ``slabinfo-gnuplot.sh`` in '-t' mode, passing all of the
+ generated pre-processed \*-totals::
+
+ slabinfo-gnuplot.sh -t STATS1-totals STATS2-totals .. STATSN-totals
+
+ This will produce a single plot (png file).
+
+ Plots, expectedly, can be large so some fluctuations or small spikes
+ can go unnoticed. To deal with that, ``slabinfo-gnuplot.sh`` has two
+ options to 'zoom-in'/'zoom-out':
+
+ a) ``-s %d,%d`` -- overwrites the default image width and height
+ b) ``-r %d,%d`` -- specifies a range of samples to use (for example,
+ in ``slabinfo -X >> FOO_STATS; sleep 1;`` case, using a ``-r
+ 40,60`` range will plot only samples collected between 40th and
+ 60th seconds).
+
+
+DebugFS files for SLUB
+======================
+
+For more information about current state of SLUB caches with the user tracking
+debug option enabled, debugfs files are available, typically under
+/sys/kernel/debug/slab/<cache>/ (created only for caches with enabled user
+tracking). There are 2 types of these files with the following debug
+information:
+
+1. alloc_traces::
+
+ Prints information about unique allocation traces of the currently
+ allocated objects. The output is sorted by frequency of each trace.
+
+ Information in the output:
+ Number of objects, allocating function, possible memory wastage of
+ kmalloc objects(total/per-object), minimal/average/maximal jiffies
+ since alloc, pid range of the allocating processes, cpu mask of
+ allocating cpus, numa node mask of origins of memory, and stack trace.
+
+ Example:::
+
+ 338 pci_alloc_dev+0x2c/0xa0 waste=521872/1544 age=290837/291891/293509 pid=1 cpus=106 nodes=0-1
+ __kmem_cache_alloc_node+0x11f/0x4e0
+ kmalloc_trace+0x26/0xa0
+ pci_alloc_dev+0x2c/0xa0
+ pci_scan_single_device+0xd2/0x150
+ pci_scan_slot+0xf7/0x2d0
+ pci_scan_child_bus_extend+0x4e/0x360
+ acpi_pci_root_create+0x32e/0x3b0
+ pci_acpi_scan_root+0x2b9/0x2d0
+ acpi_pci_root_add.cold.11+0x110/0xb0a
+ acpi_bus_attach+0x262/0x3f0
+ device_for_each_child+0xb7/0x110
+ acpi_dev_for_each_child+0x77/0xa0
+ acpi_bus_attach+0x108/0x3f0
+ device_for_each_child+0xb7/0x110
+ acpi_dev_for_each_child+0x77/0xa0
+ acpi_bus_attach+0x108/0x3f0
+
+2. free_traces::
+
+ Prints information about unique freeing traces of the currently allocated
+ objects. The freeing traces thus come from the previous life-cycle of the
+ objects and are reported as not available for objects allocated for the first
+ time. The output is sorted by frequency of each trace.
+
+ Information in the output:
+ Number of objects, freeing function, minimal/average/maximal jiffies since free,
+ pid range of the freeing processes, cpu mask of freeing cpus, and stack trace.
+
+ Example:::
+
+ 1980 <not-available> age=4294912290 pid=0 cpus=0
+ 51 acpi_ut_update_ref_count+0x6a6/0x782 age=236886/237027/237772 pid=1 cpus=1
+ kfree+0x2db/0x420
+ acpi_ut_update_ref_count+0x6a6/0x782
+ acpi_ut_update_object_reference+0x1ad/0x234
+ acpi_ut_remove_reference+0x7d/0x84
+ acpi_rs_get_prt_method_data+0x97/0xd6
+ acpi_get_irq_routing_table+0x82/0xc4
+ acpi_pci_irq_find_prt_entry+0x8e/0x2e0
+ acpi_pci_irq_lookup+0x3a/0x1e0
+ acpi_pci_irq_enable+0x77/0x240
+ pcibios_enable_device+0x39/0x40
+ do_pci_enable_device.part.0+0x5d/0xe0
+ pci_enable_device_flags+0xfc/0x120
+ pci_enable_device+0x13/0x20
+ virtio_pci_probe+0x9e/0x170
+ local_pci_probe+0x48/0x80
+ pci_device_probe+0x105/0x1c0
+
+Christoph Lameter, May 30, 2007
+Sergey Senozhatsky, October 23, 2015
diff --git a/Documentation/admin-guide/mm/swap_numa.rst b/Documentation/admin-guide/mm/swap_numa.rst
deleted file mode 100644
index 2e630627bcee..000000000000
--- a/Documentation/admin-guide/mm/swap_numa.rst
+++ /dev/null
@@ -1,78 +0,0 @@
-===========================================
-Automatically bind swap device to numa node
-===========================================
-
-If the system has more than one swap device and swap device has the node
-information, we can make use of this information to decide which swap
-device to use in get_swap_pages() to get better performance.
-
-
-How to use this feature
-=======================
-
-Swap device has priority and that decides the order of it to be used. To make
-use of automatically binding, there is no need to manipulate priority settings
-for swap devices. e.g. on a 2 node machine, assume 2 swap devices swapA and
-swapB, with swapA attached to node 0 and swapB attached to node 1, are going
-to be swapped on. Simply swapping them on by doing::
-
- # swapon /dev/swapA
- # swapon /dev/swapB
-
-Then node 0 will use the two swap devices in the order of swapA then swapB and
-node 1 will use the two swap devices in the order of swapB then swapA. Note
-that the order of them being swapped on doesn't matter.
-
-A more complex example on a 4 node machine. Assume 6 swap devices are going to
-be swapped on: swapA and swapB are attached to node 0, swapC is attached to
-node 1, swapD and swapE are attached to node 2 and swapF is attached to node3.
-The way to swap them on is the same as above::
-
- # swapon /dev/swapA
- # swapon /dev/swapB
- # swapon /dev/swapC
- # swapon /dev/swapD
- # swapon /dev/swapE
- # swapon /dev/swapF
-
-Then node 0 will use them in the order of::
-
- swapA/swapB -> swapC -> swapD -> swapE -> swapF
-
-swapA and swapB will be used in a round robin mode before any other swap device.
-
-node 1 will use them in the order of::
-
- swapC -> swapA -> swapB -> swapD -> swapE -> swapF
-
-node 2 will use them in the order of::
-
- swapD/swapE -> swapA -> swapB -> swapC -> swapF
-
-Similaly, swapD and swapE will be used in a round robin mode before any
-other swap devices.
-
-node 3 will use them in the order of::
-
- swapF -> swapA -> swapB -> swapC -> swapD -> swapE
-
-
-Implementation details
-======================
-
-The current code uses a priority based list, swap_avail_list, to decide
-which swap device to use and if multiple swap devices share the same
-priority, they are used round robin. This change here replaces the single
-global swap_avail_list with a per-numa-node list, i.e. for each numa node,
-it sees its own priority based list of available swap devices. Swap
-device's priority can be promoted on its matching node's swap_avail_list.
-
-The current swap device's priority is set as: user can set a >=0 value,
-or the system will pick one starting from -1 then downwards. The priority
-value in the swap_avail_list is the negated value of the swap device's
-due to plist being sorted from low to high. The new policy doesn't change
-the semantics for priority >=0 cases, the previous starting from -1 then
-downwards now becomes starting from -2 then downwards and -1 is reserved
-as the promoted value. So if multiple swap devices are attached to the same
-node, they will all be promoted to priority -1 on that node's plist and will
-be used round robin before any other swap devices.
diff --git a/Documentation/admin-guide/mm/transhuge.rst b/Documentation/admin-guide/mm/transhuge.rst
index b0cc8243e093..5fbc3d89bb07 100644
--- a/Documentation/admin-guide/mm/transhuge.rst
+++ b/Documentation/admin-guide/mm/transhuge.rst
@@ -45,10 +45,25 @@ components:
the two is using hugepages just because of the fact the TLB miss is
going to run faster.
+Modern kernels support "multi-size THP" (mTHP), which introduces the
+ability to allocate memory in blocks that are bigger than a base page
+but smaller than traditional PMD-size (as described above), in
+increments of a power-of-2 number of pages. mTHP can back anonymous
+memory (for example 16K, 32K, 64K, etc). These THPs continue to be
+PTE-mapped, but in many cases can still provide similar benefits to
+those outlined above: Page faults are significantly reduced (by a
+factor of e.g. 4, 8, 16, etc), but latency spikes are much less
+prominent because the size of each page isn't as huge as the PMD-sized
+variant and there is less memory to clear in each page fault. Some
+architectures also employ TLB compression mechanisms to squeeze more
+entries in when a set of PTEs are virtually and physically contiguous
+and approporiately aligned. In this case, TLB misses will occur less
+often.
+
THP can be enabled system wide or restricted to certain tasks or even
memory ranges inside task's address space. Unless THP is completely
disabled, there is ``khugepaged`` daemon that scans memory and
-collapses sequences of basic pages into huge pages.
+collapses sequences of basic pages into PMD-sized huge pages.
The THP behaviour is controlled via :ref:`sysfs <thp_sysfs>`
interface and using madvise(2) and prctl(2) system calls.
@@ -92,15 +107,48 @@ sysfs
Global THP controls
-------------------
-Transparent Hugepage Support for anonymous memory can be entirely disabled
+Transparent Hugepage Support for anonymous memory can be disabled
(mostly for debugging purposes) or only enabled inside MADV_HUGEPAGE
regions (to avoid the risk of consuming more memory resources) or enabled
-system wide. This can be achieved with one of::
+system wide. This can be achieved per-supported-THP-size with one of::
+
+ echo always >/sys/kernel/mm/transparent_hugepage/hugepages-<size>kB/enabled
+ echo madvise >/sys/kernel/mm/transparent_hugepage/hugepages-<size>kB/enabled
+ echo never >/sys/kernel/mm/transparent_hugepage/hugepages-<size>kB/enabled
+
+where <size> is the hugepage size being addressed, the available sizes
+for which vary by system.
+
+.. note:: Setting "never" in all sysfs THP controls does **not** disable
+ Transparent Huge Pages globally. This is because ``madvise(...,
+ MADV_COLLAPSE)`` ignores these settings and collapses ranges to
+ PMD-sized huge pages unconditionally.
+
+For example::
+
+ echo always >/sys/kernel/mm/transparent_hugepage/hugepages-2048kB/enabled
+
+Alternatively it is possible to specify that a given hugepage size
+will inherit the top-level "enabled" value::
+
+ echo inherit >/sys/kernel/mm/transparent_hugepage/hugepages-<size>kB/enabled
+
+For example::
+
+ echo inherit >/sys/kernel/mm/transparent_hugepage/hugepages-2048kB/enabled
+
+The top-level setting (for use with "inherit") can be set by issuing
+one of the following commands::
echo always >/sys/kernel/mm/transparent_hugepage/enabled
echo madvise >/sys/kernel/mm/transparent_hugepage/enabled
echo never >/sys/kernel/mm/transparent_hugepage/enabled
+By default, PMD-sized hugepages have enabled="inherit" and all other
+hugepage sizes have enabled="never". If enabling multiple hugepage
+sizes, the kernel will select the most appropriate enabled size for a
+given allocation.
+
It's also possible to limit defrag efforts in the VM to generate
anonymous hugepages in case they're not immediately free to madvise
regions or to never try to defrag memory and simply fallback to regular
@@ -144,27 +192,83 @@ madvise
behaviour.
never
- should be self-explanatory.
+ should be self-explanatory. Note that ``madvise(...,
+ MADV_COLLAPSE)`` can still cause transparent huge pages to be
+ obtained even if this mode is specified everywhere.
-By default kernel tries to use huge zero page on read page fault to
-anonymous mapping. It's possible to disable huge zero page by writing 0
-or enable it back by writing 1::
+By default kernel tries to use huge, PMD-mappable zero page on read
+page fault to anonymous mapping. It's possible to disable huge zero
+page by writing 0 or enable it back by writing 1::
echo 0 >/sys/kernel/mm/transparent_hugepage/use_zero_page
echo 1 >/sys/kernel/mm/transparent_hugepage/use_zero_page
-Some userspace (such as a test program, or an optimized memory allocation
-library) may want to know the size (in bytes) of a transparent hugepage::
+Some userspace (such as a test program, or an optimized memory
+allocation library) may want to know the size (in bytes) of a
+PMD-mappable transparent hugepage::
cat /sys/kernel/mm/transparent_hugepage/hpage_pmd_size
-khugepaged will be automatically started when
-transparent_hugepage/enabled is set to "always" or "madvise, and it'll
-be automatically shutdown if it's set to "never".
+All THPs at fault and collapse time will be added to _deferred_list,
+and will therefore be split under memory presure if they are considered
+"underused". A THP is underused if the number of zero-filled pages in
+the THP is above max_ptes_none (see below). It is possible to disable
+this behaviour by writing 0 to shrink_underused, and enable it by writing
+1 to it::
+
+ echo 0 > /sys/kernel/mm/transparent_hugepage/shrink_underused
+ echo 1 > /sys/kernel/mm/transparent_hugepage/shrink_underused
+
+khugepaged will be automatically started when PMD-sized THP is enabled
+(either of the per-size anon control or the top-level control are set
+to "always" or "madvise"), and it'll be automatically shutdown when
+PMD-sized THP is disabled (when both the per-size anon control and the
+top-level control are "never")
+
+process THP controls
+--------------------
+
+A process can control its own THP behaviour using the ``PR_SET_THP_DISABLE``
+and ``PR_GET_THP_DISABLE`` pair of prctl(2) calls. The THP behaviour set using
+``PR_SET_THP_DISABLE`` is inherited across fork(2) and execve(2). These calls
+support the following arguments::
+
+ prctl(PR_SET_THP_DISABLE, 1, 0, 0, 0):
+ This will disable THPs completely for the process, irrespective
+ of global THP controls or madvise(..., MADV_COLLAPSE) being used.
+
+ prctl(PR_SET_THP_DISABLE, 1, PR_THP_DISABLE_EXCEPT_ADVISED, 0, 0):
+ This will disable THPs for the process except when the usage of THPs is
+ advised. Consequently, THPs will only be used when:
+ - Global THP controls are set to "always" or "madvise" and
+ madvise(..., MADV_HUGEPAGE) or madvise(..., MADV_COLLAPSE) is used.
+ - Global THP controls are set to "never" and madvise(..., MADV_COLLAPSE)
+ is used. This is the same behavior as if THPs would not be disabled on
+ a process level.
+ Note that MADV_COLLAPSE is currently always rejected if
+ madvise(..., MADV_NOHUGEPAGE) is set on an area.
+
+ prctl(PR_SET_THP_DISABLE, 0, 0, 0, 0):
+ This will re-enable THPs for the process, as if they were never disabled.
+ Whether THPs will actually be used depends on global THP controls and
+ madvise() calls.
+
+ prctl(PR_GET_THP_DISABLE, 0, 0, 0, 0):
+ This returns a value whose bits indicate how THP-disable is configured:
+ Bits
+ 1 0 Value Description
+ |0|0| 0 No THP-disable behaviour specified.
+ |0|1| 1 THP is entirely disabled for this process.
+ |1|1| 3 THP-except-advised mode is set for this process.
Khugepaged controls
-------------------
+.. note::
+ khugepaged currently only searches for opportunities to collapse to
+ PMD-sized THP and no attempt is made to collapse to other THP
+ sizes.
+
khugepaged runs usually at low frequency so while one may not want to
invoke defrag algorithms synchronously during the page faults, it
should be worth invoking defrag at least in khugepaged. However it's
@@ -226,52 +330,130 @@ collapsed, resulting fewer pages being collapsed into
THPs, and lower memory access performance.
``max_ptes_shared`` specifies how many pages can be shared across multiple
-processes. Exceeding the number would block the collapse::
+processes. khugepaged might treat pages of THPs as shared if any page of
+that THP is shared. Exceeding the number would block the collapse::
/sys/kernel/mm/transparent_hugepage/khugepaged/max_ptes_shared
A higher value may increase memory footprint for some workloads.
-Boot parameter
-==============
-
-You can change the sysfs boot time defaults of Transparent Hugepage
-Support by passing the parameter ``transparent_hugepage=always`` or
-``transparent_hugepage=madvise`` or ``transparent_hugepage=never``
-to the kernel command line.
+Boot parameters
+===============
+
+You can change the sysfs boot time default for the top-level "enabled"
+control by passing the parameter ``transparent_hugepage=always`` or
+``transparent_hugepage=madvise`` or ``transparent_hugepage=never`` to the
+kernel command line.
+
+Alternatively, each supported anonymous THP size can be controlled by
+passing ``thp_anon=<size>[KMG],<size>[KMG]:<state>;<size>[KMG]-<size>[KMG]:<state>``,
+where ``<size>`` is the THP size (must be a power of 2 of PAGE_SIZE and
+supported anonymous THP) and ``<state>`` is one of ``always``, ``madvise``,
+``never`` or ``inherit``.
+
+For example, the following will set 16K, 32K, 64K THP to ``always``,
+set 128K, 512K to ``inherit``, set 256K to ``madvise`` and 1M, 2M
+to ``never``::
+
+ thp_anon=16K-64K:always;128K,512K:inherit;256K:madvise;1M-2M:never
+
+``thp_anon=`` may be specified multiple times to configure all THP sizes as
+required. If ``thp_anon=`` is specified at least once, any anon THP sizes
+not explicitly configured on the command line are implicitly set to
+``never``.
+
+``transparent_hugepage`` setting only affects the global toggle. If
+``thp_anon`` is not specified, PMD_ORDER THP will default to ``inherit``.
+However, if a valid ``thp_anon`` setting is provided by the user, the
+PMD_ORDER THP policy will be overridden. If the policy for PMD_ORDER
+is not defined within a valid ``thp_anon``, its policy will default to
+``never``.
+
+Similarly to ``transparent_hugepage``, you can control the hugepage
+allocation policy for the internal shmem mount by using the kernel parameter
+``transparent_hugepage_shmem=<policy>``, where ``<policy>`` is one of the
+seven valid policies for shmem (``always``, ``within_size``, ``advise``,
+``never``, ``deny``, and ``force``).
+
+Similarly to ``transparent_hugepage_shmem``, you can control the default
+hugepage allocation policy for the tmpfs mount by using the kernel parameter
+``transparent_hugepage_tmpfs=<policy>``, where ``<policy>`` is one of the
+four valid policies for tmpfs (``always``, ``within_size``, ``advise``,
+``never``). The tmpfs mount default policy is ``never``.
+
+Additionally, Kconfig options are available to set the default hugepage
+policies for shmem (``CONFIG_TRANSPARENT_HUGEPAGE_SHMEM_HUGE_*``) and tmpfs
+(``CONFIG_TRANSPARENT_HUGEPAGE_TMPFS_HUGE_*``) at build time. Refer to the
+Kconfig help for more details.
+
+In the same manner as ``thp_anon`` controls each supported anonymous THP
+size, ``thp_shmem`` controls each supported shmem THP size. ``thp_shmem``
+has the same format as ``thp_anon``, but also supports the policy
+``within_size``.
+
+``thp_shmem=`` may be specified multiple times to configure all THP sizes
+as required. If ``thp_shmem=`` is specified at least once, any shmem THP
+sizes not explicitly configured on the command line are implicitly set to
+``never``.
+
+``transparent_hugepage_shmem`` setting only affects the global toggle. If
+``thp_shmem`` is not specified, PMD_ORDER hugepage will default to
+``inherit``. However, if a valid ``thp_shmem`` setting is provided by the
+user, the PMD_ORDER hugepage policy will be overridden. If the policy for
+PMD_ORDER is not defined within a valid ``thp_shmem``, its policy will
+default to ``never``.
Hugepages in tmpfs/shmem
========================
-You can control hugepage allocation policy in tmpfs with mount option
-``huge=``. It can have following values:
+Traditionally, tmpfs only supported a single huge page size ("PMD"). Today,
+it also supports smaller sizes just like anonymous memory, often referred
+to as "multi-size THP" (mTHP). Huge pages of any size are commonly
+represented in the kernel as "large folios".
+
+While there is fine control over the huge page sizes to use for the internal
+shmem mount (see below), ordinary tmpfs mounts will make use of all available
+huge page sizes without any control over the exact sizes, behaving more like
+other file systems.
+
+tmpfs mounts
+------------
+
+The THP allocation policy for tmpfs mounts can be adjusted using the mount
+option: ``huge=``. It can have following values:
always
Attempt to allocate huge pages every time we need a new page;
+ Always try PMD-sized huge pages first, and fall back to smaller-sized
+ huge pages if the PMD-sized huge page allocation fails;
never
- Do not allocate huge pages;
+ Do not allocate huge pages. Note that ``madvise(..., MADV_COLLAPSE)``
+ can still cause transparent huge pages to be obtained even if this mode
+ is specified everywhere;
within_size
- Only allocate huge page if it will be fully within i_size.
- Also respect fadvise()/madvise() hints;
+ Only allocate huge page if it will be fully within i_size;
+ Always try PMD-sized huge pages first, and fall back to smaller-sized
+ huge pages if the PMD-sized huge page allocation fails;
+ Also respect madvise() hints;
advise
- Only allocate huge pages if requested with fadvise()/madvise();
+ Only allocate huge pages if requested with madvise();
+
+Remember, that the kernel may use huge pages of all available sizes, and
+that no fine control as for the internal tmpfs mount is available.
-The default policy is ``never``.
+The default policy in the past was ``never``, but it can now be adjusted
+using the kernel parameter ``transparent_hugepage_tmpfs=<policy>``.
``mount -o remount,huge= /mountpoint`` works fine after mount: remounting
``huge=never`` will not attempt to break up huge pages at all, just stop more
from being allocated.
-There's also sysfs knob to control hugepage allocation policy for internal
-shmem mount: /sys/kernel/mm/transparent_hugepage/shmem_enabled. The mount
-is used for SysV SHM, memfds, shared anonymous mmaps (of /dev/zero or
-MAP_ANONYMOUS), GPU drivers' DRM objects, Ashmem.
-
-In addition to policies listed above, shmem_enabled allows two further
-values:
+In addition to policies listed above, the sysfs knob
+/sys/kernel/mm/transparent_hugepage/shmem_enabled will affect the
+allocation policy of tmpfs mounts, when set to the following values:
deny
For use in emergencies, to force the huge option off from
@@ -279,27 +461,68 @@ deny
force
Force the huge option on for all - very useful for testing;
+shmem / internal tmpfs
+----------------------
+The mount internal tmpfs mount is used for SysV SHM, memfds, shared anonymous
+mmaps (of /dev/zero or MAP_ANONYMOUS), GPU drivers' DRM objects, Ashmem.
+
+To control the THP allocation policy for this internal tmpfs mount, the
+sysfs knob /sys/kernel/mm/transparent_hugepage/shmem_enabled and the knobs
+per THP size in
+'/sys/kernel/mm/transparent_hugepage/hugepages-<size>kB/shmem_enabled'
+can be used.
+
+The global knob has the same semantics as the ``huge=`` mount options
+for tmpfs mounts, except that the different huge page sizes can be controlled
+individually, and will only use the setting of the global knob when the
+per-size knob is set to 'inherit'.
+
+The options 'force' and 'deny' are dropped for the individual sizes, which
+are rather testing artifacts from the old ages.
+
+always
+ Attempt to allocate <size> huge pages every time we need a new page;
+
+inherit
+ Inherit the top-level "shmem_enabled" value. By default, PMD-sized hugepages
+ have enabled="inherit" and all other hugepage sizes have enabled="never";
+
+never
+ Do not allocate <size> huge pages. Note that ``madvise(...,
+ MADV_COLLAPSE)`` can still cause transparent huge pages to be obtained
+ even if this mode is specified everywhere;
+
+within_size
+ Only allocate <size> huge page if it will be fully within i_size.
+ Also respect madvise() hints;
+
+advise
+ Only allocate <size> huge pages if requested with madvise();
+
Need of application restart
===========================
-The transparent_hugepage/enabled values and tmpfs mount option only affect
-future behavior. So to make them effective you need to restart any
-application that could have been using hugepages. This also applies to the
-regions registered in khugepaged.
+The transparent_hugepage/enabled and
+transparent_hugepage/hugepages-<size>kB/enabled values and tmpfs mount
+option only affect future behavior. So to make them effective you need
+to restart any application that could have been using hugepages. This
+also applies to the regions registered in khugepaged.
Monitoring usage
================
-The number of anonymous transparent huge pages currently used by the
+The number of PMD-sized anonymous transparent huge pages currently used by the
system is available by reading the AnonHugePages field in ``/proc/meminfo``.
-To identify what applications are using anonymous transparent huge pages,
-it is necessary to read ``/proc/PID/smaps`` and count the AnonHugePages fields
-for each mapping.
+To identify what applications are using PMD-sized anonymous transparent huge
+pages, it is necessary to read ``/proc/PID/smaps`` and count the AnonHugePages
+fields for each mapping. (Note that AnonHugePages only applies to traditional
+PMD-sized THP for historical reasons and should have been called
+AnonHugePmdMapped).
The number of file transparent huge pages mapped to userspace is available
by reading ShmemPmdMapped and ShmemHugePages fields in ``/proc/meminfo``.
To identify what applications are mapping file transparent huge pages, it
-is necessary to read ``/proc/PID/smaps`` and count the FileHugeMapped fields
+is necessary to read ``/proc/PID/smaps`` and count the FilePmdMapped fields
for each mapping.
Note that reading the smaps file is expensive and reading it
@@ -310,7 +533,7 @@ monitor how successfully the system is providing huge pages for use.
thp_fault_alloc
is incremented every time a huge page is successfully
- allocated to handle a page fault.
+ allocated and charged to handle a page fault.
thp_collapse_alloc
is incremented by khugepaged when it has found
@@ -318,7 +541,7 @@ thp_collapse_alloc
successfully allocated a new huge page to store the data.
thp_fault_fallback
- is incremented if a page fault fails to allocate
+ is incremented if a page fault fails to allocate or charge
a huge page and instead falls back to using small pages.
thp_fault_fallback_charge
@@ -332,20 +555,23 @@ thp_collapse_alloc_failed
the allocation.
thp_file_alloc
- is incremented every time a file huge page is successfully
- allocated.
+ is incremented every time a shmem huge page is successfully
+ allocated (Note that despite being named after "file", the counter
+ measures only shmem).
thp_file_fallback
- is incremented if a file huge page is attempted to be allocated
- but fails and instead falls back to using small pages.
+ is incremented if a shmem huge page is attempted to be allocated
+ but fails and instead falls back to using small pages. (Note that
+ despite being named after "file", the counter measures only shmem).
thp_file_fallback_charge
- is incremented if a file huge page cannot be charged and instead
+ is incremented if a shmem huge page cannot be charged and instead
falls back to using small pages even though the allocation was
- successful.
+ successful. (Note that despite being named after "file", the
+ counter measures only shmem).
thp_file_mapped
- is incremented every time a file huge page is mapped into
+ is incremented every time a file or shmem huge page is mapped into
user address space.
thp_split_page
@@ -364,6 +590,12 @@ thp_deferred_split_page
splitting it would free up some memory. Pages on split queue are
going to be split under memory pressure.
+thp_underused_split_page
+ is incremented when a huge page on the split queue was split
+ because it was underused. A THP is underused if the number of
+ zero pages in the THP is above a certain threshold
+ (/sys/kernel/mm/transparent_hugepage/khugepaged/max_ptes_none).
+
thp_split_pmd
is incremented every time a PMD split into table of PTEs.
This can happen, for instance, when application calls mprotect() or
@@ -388,6 +620,92 @@ thp_swpout_fallback
Usually because failed to allocate some continuous swap space
for the huge page.
+In /sys/kernel/mm/transparent_hugepage/hugepages-<size>kB/stats, There are
+also individual counters for each huge page size, which can be utilized to
+monitor the system's effectiveness in providing huge pages for usage. Each
+counter has its own corresponding file.
+
+anon_fault_alloc
+ is incremented every time a huge page is successfully
+ allocated and charged to handle a page fault.
+
+anon_fault_fallback
+ is incremented if a page fault fails to allocate or charge
+ a huge page and instead falls back to using huge pages with
+ lower orders or small pages.
+
+anon_fault_fallback_charge
+ is incremented if a page fault fails to charge a huge page and
+ instead falls back to using huge pages with lower orders or
+ small pages even though the allocation was successful.
+
+zswpout
+ is incremented every time a huge page is swapped out to zswap in one
+ piece without splitting.
+
+swpin
+ is incremented every time a huge page is swapped in from a non-zswap
+ swap device in one piece.
+
+swpin_fallback
+ is incremented if swapin fails to allocate or charge a huge page
+ and instead falls back to using huge pages with lower orders or
+ small pages.
+
+swpin_fallback_charge
+ is incremented if swapin fails to charge a huge page and instead
+ falls back to using huge pages with lower orders or small pages
+ even though the allocation was successful.
+
+swpout
+ is incremented every time a huge page is swapped out to a non-zswap
+ swap device in one piece without splitting.
+
+swpout_fallback
+ is incremented if a huge page has to be split before swapout.
+ Usually because failed to allocate some continuous swap space
+ for the huge page.
+
+shmem_alloc
+ is incremented every time a shmem huge page is successfully
+ allocated.
+
+shmem_fallback
+ is incremented if a shmem huge page is attempted to be allocated
+ but fails and instead falls back to using small pages.
+
+shmem_fallback_charge
+ is incremented if a shmem huge page cannot be charged and instead
+ falls back to using small pages even though the allocation was
+ successful.
+
+split
+ is incremented every time a huge page is successfully split into
+ smaller orders. This can happen for a variety of reasons but a
+ common reason is that a huge page is old and is being reclaimed.
+
+split_failed
+ is incremented if kernel fails to split huge
+ page. This can happen if the page was pinned by somebody.
+
+split_deferred
+ is incremented when a huge page is put onto split queue.
+ This happens when a huge page is partially unmapped and splitting
+ it would free up some memory. Pages on split queue are going to
+ be split under memory pressure, if splitting is possible.
+
+nr_anon
+ the number of anonymous THP we have in the whole system. These THPs
+ might be currently entirely mapped or have partially unmapped/unused
+ subpages.
+
+nr_anon_partially_mapped
+ the number of anonymous THP which are likely partially mapped, possibly
+ wasting memory, and have been queued for deferred memory reclamation.
+ Note that in corner some cases (e.g., failed migration), we might detect
+ an anonymous THP as "partially mapped" and count it here, even though it
+ is not actually partially mapped anymore.
+
As the system ages, allocating huge pages may be expensive as the
system uses memory compaction to copy data around memory to free a
huge page for use. There are some counters in ``/proc/vmstat`` to help
@@ -413,7 +731,7 @@ for huge pages.
Optimizing the applications
===========================
-To be guaranteed that the kernel will map a 2M page immediately in any
+To be guaranteed that the kernel will map a THP immediately in any
memory region, the mmap region has to be hugepage naturally
aligned. posix_memalign() can provide that guarantee.
diff --git a/Documentation/admin-guide/mm/userfaultfd.rst b/Documentation/admin-guide/mm/userfaultfd.rst
index 7c304e432205..e5cc8848dcb3 100644
--- a/Documentation/admin-guide/mm/userfaultfd.rst
+++ b/Documentation/admin-guide/mm/userfaultfd.rst
@@ -113,6 +113,9 @@ events, except page fault notifications, may be generated:
areas. ``UFFD_FEATURE_MINOR_SHMEM`` is the analogous feature indicating
support for shmem virtual memory areas.
+- ``UFFD_FEATURE_MOVE`` indicates that the kernel supports moving an
+ existing page contents from userspace.
+
The userland application should set the feature flags it intends to use
when invoking the ``UFFDIO_API`` ioctl, to request that those features be
enabled if supported.
@@ -244,6 +247,56 @@ write-protected (so future writes will also result in a WP fault). These ioctls
support a mode flag (``UFFDIO_COPY_MODE_WP`` or ``UFFDIO_CONTINUE_MODE_WP``
respectively) to configure the mapping this way.
+If the userfaultfd context has ``UFFD_FEATURE_WP_ASYNC`` feature bit set,
+any vma registered with write-protection will work in async mode rather
+than the default sync mode.
+
+In async mode, there will be no message generated when a write operation
+happens, meanwhile the write-protection will be resolved automatically by
+the kernel. It can be seen as a more accurate version of soft-dirty
+tracking and it can be different in a few ways:
+
+ - The dirty result will not be affected by vma changes (e.g. vma
+ merging) because the dirty is only tracked by the pte.
+
+ - It supports range operations by default, so one can enable tracking on
+ any range of memory as long as page aligned.
+
+ - Dirty information will not get lost if the pte was zapped due to
+ various reasons (e.g. during split of a shmem transparent huge page).
+
+ - Due to a reverted meaning of soft-dirty (page clean when uffd-wp bit
+ set; dirty when uffd-wp bit cleared), it has different semantics on
+ some of the memory operations. For example: ``MADV_DONTNEED`` on
+ anonymous (or ``MADV_REMOVE`` on a file mapping) will be treated as
+ dirtying of memory by dropping uffd-wp bit during the procedure.
+
+The user app can collect the "written/dirty" status by looking up the
+uffd-wp bit for the pages being interested in /proc/pagemap.
+
+The page will not be under track of uffd-wp async mode until the page is
+explicitly write-protected by ``ioctl(UFFDIO_WRITEPROTECT)`` with the mode
+flag ``UFFDIO_WRITEPROTECT_MODE_WP`` set. Trying to resolve a page fault
+that was tracked by async mode userfaultfd-wp is invalid.
+
+When userfaultfd-wp async mode is used alone, it can be applied to all
+kinds of memory.
+
+Memory Poisioning Emulation
+---------------------------
+
+In response to a fault (either missing or minor), an action userspace can
+take to "resolve" it is to issue a ``UFFDIO_POISON``. This will cause any
+future faulters to either get a SIGBUS, or in KVM's case the guest will
+receive an MCE as if there were hardware memory poisoning.
+
+This is used to emulate hardware memory poisoning. Imagine a VM running on a
+machine which experiences a real hardware memory error. Later, we live migrate
+the VM to another physical machine. Since we want the migration to be
+transparent to the guest, we want that same address range to act as if it was
+still poisoned, even though it's on a new physical host which ostensibly
+doesn't have a memory error in the exact same spot.
+
QEMU/KVM
========
diff --git a/Documentation/admin-guide/mm/zswap.rst b/Documentation/admin-guide/mm/zswap.rst
index c5c2c7dbb155..2464425c783d 100644
--- a/Documentation/admin-guide/mm/zswap.rst
+++ b/Documentation/admin-guide/mm/zswap.rst
@@ -49,40 +49,29 @@ compressed pool.
Design
======
-Zswap receives pages for compression through the Frontswap API and is able to
+Zswap receives pages for compression from the swap subsystem and is able to
evict pages from its own compressed pool on an LRU basis and write them back to
the backing swap device in the case that the compressed pool is full.
-Zswap makes use of zpool for the managing the compressed memory pool. Each
-allocation in zpool is not directly accessible by address. Rather, a handle is
+Zswap makes use of zsmalloc for the managing the compressed memory pool. Each
+allocation in zsmalloc is not directly accessible by address. Rather, a handle is
returned by the allocation routine and that handle must be mapped before being
accessed. The compressed memory pool grows on demand and shrinks as compressed
-pages are freed. The pool is not preallocated. By default, a zpool
-of type selected in ``CONFIG_ZSWAP_ZPOOL_DEFAULT`` Kconfig option is created,
-but it can be overridden at boot time by setting the ``zpool`` attribute,
-e.g. ``zswap.zpool=zbud``. It can also be changed at runtime using the sysfs
-``zpool`` attribute, e.g.::
+pages are freed. The pool is not preallocated.
- echo zbud > /sys/module/zswap/parameters/zpool
-
-The zbud type zpool allocates exactly 1 page to store 2 compressed pages, which
-means the compression ratio will always be 2:1 or worse (because of half-full
-zbud pages). The zsmalloc type zpool has a more complex compressed page
-storage method, and it can achieve greater storage densities.
-
-When a swap page is passed from frontswap to zswap, zswap maintains a mapping
-of the swap entry, a combination of the swap type and swap offset, to the zpool
+When a swap page is passed from swapout to zswap, zswap maintains a mapping of
+the swap entry, a combination of the swap type and swap offset, to the zsmalloc
handle that references that compressed swap page. This mapping is achieved
-with a red-black tree per swap type. The swap offset is the search key for the
-tree nodes.
+with an xarray per swap type. The swap offset is the search key for the xarray
+nodes.
-During a page fault on a PTE that is a swap entry, frontswap calls the zswap
-load function to decompress the page into the page allocated by the page fault
-handler.
+During a page fault on a PTE that is a swap entry, the swapin code calls the
+zswap load function to decompress the page into the page allocated by the page
+fault handler.
Once there are no PTEs referencing a swap page stored in zswap (i.e. the count
-in the swap_map goes to 0) the swap code calls the zswap invalidate function,
-via frontswap, to free the compressed entry.
+in the swap_map goes to 0) the swap code calls the zswap invalidate function
+to free the compressed entry.
Zswap seeks to be simple in its policies. Sysfs attributes allow for one user
controlled policy:
@@ -98,11 +87,11 @@ attribute, e.g.::
echo lzo > /sys/module/zswap/parameters/compressor
-When the zpool and/or compressor parameter is changed at runtime, any existing
-compressed pages are not modified; they are left in their own zpool. When a
-request is made for a page in an old zpool, it is uncompressed using its
-original compressor. Once all pages are removed from an old zpool, the zpool
-and its compressor are freed.
+When the compressor parameter is changed at runtime, any existing compressed
+pages are not modified; they are left in their own pool. When a request is
+made for a page in an old pool, it is uncompressed using its original
+compressor. Once all pages are removed from an old pool, the pool and its
+compressor are freed.
Some of the pages in zswap are same-value filled pages (i.e. contents of the
page have same value or repetitive pattern). These pages include zero-filled
@@ -111,35 +100,6 @@ checked if it is a same-value filled page before compressing it. If true, the
compressed length of the page is set to zero and the pattern or same-filled
value is stored.
-Same-value filled pages identification feature is enabled by default and can be
-disabled at boot time by setting the ``same_filled_pages_enabled`` attribute
-to 0, e.g. ``zswap.same_filled_pages_enabled=0``. It can also be enabled and
-disabled at runtime using the sysfs ``same_filled_pages_enabled``
-attribute, e.g.::
-
- echo 1 > /sys/module/zswap/parameters/same_filled_pages_enabled
-
-When zswap same-filled page identification is disabled at runtime, it will stop
-checking for the same-value filled pages during store operation.
-In other words, every page will be then considered non-same-value filled.
-However, the existing pages which are marked as same-value filled pages remain
-stored unchanged in zswap until they are either loaded or invalidated.
-
-In some circumstances it might be advantageous to make use of just the zswap
-ability to efficiently store same-filled pages without enabling the whole
-compressed page storage.
-In this case the handling of non-same-value pages by zswap (enabled by default)
-can be disabled by setting the ``non_same_filled_pages_enabled`` attribute
-to 0, e.g. ``zswap.non_same_filled_pages_enabled=0``.
-It can also be enabled and disabled at runtime using the sysfs
-``non_same_filled_pages_enabled`` attribute, e.g.::
-
- echo 1 > /sys/module/zswap/parameters/non_same_filled_pages_enabled
-
-Disabling both ``zswap.same_filled_pages_enabled`` and
-``zswap.non_same_filled_pages_enabled`` effectively disables accepting any new
-pages by zswap.
-
To prevent zswap from shrinking pool when zswap is full and there's a high
pressure on swap (this will result in flipping pages in and out zswap pool
without any real benefit but with a performance drop for the system), a
@@ -153,6 +113,26 @@ attribute, e. g.::
Setting this parameter to 100 will disable the hysteresis.
+Some users cannot tolerate the swapping that comes with zswap store failures
+and zswap writebacks. Swapping can be disabled entirely (without disabling
+zswap itself) on a cgroup-basis as follows::
+
+ echo 0 > /sys/fs/cgroup/<cgroup-name>/memory.zswap.writeback
+
+Note that if the store failures are recurring (for e.g if the pages are
+incompressible), users can observe reclaim inefficiency after disabling
+writeback (because the same pages might be rejected again and again).
+
+When there is a sizable amount of cold memory residing in the zswap pool, it
+can be advantageous to proactively write these cold pages to swap and reclaim
+the memory for other use cases. By default, the zswap shrinker is disabled.
+User can enable it as follows::
+
+ echo Y > /sys/module/zswap/parameters/shrinker_enabled
+
+This can be enabled at the boot time if ``CONFIG_ZSWAP_SHRINKER_DEFAULT_ON`` is
+selected.
+
A debugfs interface is provided for various statistic about pool size, number
of pages stored, same-value filled pages and various counters for the reasons
pages are rejected.
diff --git a/Documentation/admin-guide/module-signing.rst b/Documentation/admin-guide/module-signing.rst
index 7d7c7c8a545c..a8667a777490 100644
--- a/Documentation/admin-guide/module-signing.rst
+++ b/Documentation/admin-guide/module-signing.rst
@@ -28,10 +28,10 @@ trusted userspace bits.
This facility uses X.509 ITU-T standard certificates to encode the public keys
involved. The signatures are not themselves encoded in any industrial standard
-type. The facility currently only supports the RSA public key encryption
-standard (though it is pluggable and permits others to be used). The possible
-hash algorithms that can be used are SHA-1, SHA-224, SHA-256, SHA-384, and
-SHA-512 (the algorithm is selected by data in the signature).
+type. The built-in facility currently only supports the RSA & NIST P-384 ECDSA
+public key signing standard (though it is pluggable and permits others to be
+used). The possible hash algorithms that can be used are SHA-2 and SHA-3 of
+sizes 256, 384, and 512 (the algorithm is selected by data in the signature).
==========================
@@ -81,11 +81,12 @@ This has a number of options available:
sign the modules with:
=============================== ==========================================
- ``CONFIG_MODULE_SIG_SHA1`` :menuselection:`Sign modules with SHA-1`
- ``CONFIG_MODULE_SIG_SHA224`` :menuselection:`Sign modules with SHA-224`
``CONFIG_MODULE_SIG_SHA256`` :menuselection:`Sign modules with SHA-256`
``CONFIG_MODULE_SIG_SHA384`` :menuselection:`Sign modules with SHA-384`
``CONFIG_MODULE_SIG_SHA512`` :menuselection:`Sign modules with SHA-512`
+ ``CONFIG_MODULE_SIG_SHA3_256`` :menuselection:`Sign modules with SHA3-256`
+ ``CONFIG_MODULE_SIG_SHA3_384`` :menuselection:`Sign modules with SHA3-384`
+ ``CONFIG_MODULE_SIG_SHA3_512`` :menuselection:`Sign modules with SHA3-512`
=============================== ==========================================
The algorithm selected here will also be built into the kernel (rather
@@ -145,6 +146,10 @@ into vmlinux) using parameters in the::
file (which is also generated if it does not already exist).
+One can select between RSA (``MODULE_SIG_KEY_TYPE_RSA``) and ECDSA
+(``MODULE_SIG_KEY_TYPE_ECDSA``) to generate either RSA 4k or NIST
+P-384 keypair.
+
It is strongly recommended that you provide your own x509.genkey file.
Most notably, in the x509.genkey file, the req_distinguished_name section
@@ -266,7 +271,7 @@ for which it has a public key. Otherwise, it will also load modules that are
unsigned. Any module for which the kernel has a key, but which proves to have
a signature mismatch will not be permitted to load.
-Any module that has an unparseable signature will be rejected.
+Any module that has an unparsable signature will be rejected.
=========================================
diff --git a/Documentation/admin-guide/namespaces/resource-control.rst b/Documentation/admin-guide/namespaces/resource-control.rst
index 369556e00f0c..553a44803231 100644
--- a/Documentation/admin-guide/namespaces/resource-control.rst
+++ b/Documentation/admin-guide/namespaces/resource-control.rst
@@ -1,17 +1,17 @@
-===========================
-Namespaces research control
-===========================
+====================================
+User namespaces and resource control
+====================================
-There are a lot of kinds of objects in the kernel that don't have
-individual limits or that have limits that are ineffective when a set
-of processes is allowed to switch user ids. With user namespaces
-enabled in a kernel for people who don't trust their users or their
-users programs to play nice this problems becomes more acute.
+The kernel contains many kinds of objects that either don't have
+individual limits or that have limits which are ineffective when
+a set of processes is allowed to switch their UID. On a system
+where the admins don't trust their users or their users' programs,
+user namespaces expose the system to potential misuse of resources.
-Therefore it is recommended that memory control groups be enabled in
-kernels that enable user namespaces, and it is further recommended
-that userspace configure memory control groups to limit how much
-memory user's they don't trust to play nice can use.
+In order to mitigate this, we recommend that admins enable memory
+control groups on any system that enables user namespaces.
+Furthermore, we recommend that admins configure the memory control
+groups to limit the maximum memory usable by any untrusted user.
Memory control groups can be configured by installing the libcgroup
package present on most distros editing /etc/cgrules.conf,
diff --git a/Documentation/admin-guide/nfs/nfsroot.rst b/Documentation/admin-guide/nfs/nfsroot.rst
index 135218f33394..06990309c6ff 100644
--- a/Documentation/admin-guide/nfs/nfsroot.rst
+++ b/Documentation/admin-guide/nfs/nfsroot.rst
@@ -342,7 +342,7 @@ They depend on various facilities being available:
When using pxelinux, the kernel image is specified using
"kernel <relative-path-below /tftpboot>". The nfsroot parameters
are passed to the kernel by adding them to the "append" line.
- It is common to use serial console in conjunction with pxeliunx,
+ It is common to use serial console in conjunction with pxelinux,
see Documentation/admin-guide/serial-console.rst for more information.
For more information on isolinux, including how to create bootdisks
diff --git a/Documentation/admin-guide/nvme-multipath.rst b/Documentation/admin-guide/nvme-multipath.rst
new file mode 100644
index 000000000000..97ca1ccef459
--- /dev/null
+++ b/Documentation/admin-guide/nvme-multipath.rst
@@ -0,0 +1,72 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+====================
+Linux NVMe multipath
+====================
+
+This document describes NVMe multipath and its path selection policies supported
+by the Linux NVMe host driver.
+
+
+Introduction
+============
+
+The NVMe multipath feature in Linux integrates namespaces with the same
+identifier into a single block device. Using multipath enhances the reliability
+and stability of I/O access while improving bandwidth performance. When a user
+sends I/O to this merged block device, the multipath mechanism selects one of
+the underlying block devices (paths) according to the configured policy.
+Different policies result in different path selections.
+
+
+Policies
+========
+
+All policies follow the ANA (Asymmetric Namespace Access) mechanism, meaning
+that when an optimized path is available, it will be chosen over a non-optimized
+one. Current the NVMe multipath policies include numa(default), round-robin and
+queue-depth.
+
+To set the desired policy (e.g., round-robin), use one of the following methods:
+ 1. echo -n "round-robin" > /sys/module/nvme_core/parameters/iopolicy
+ 2. or add the "nvme_core.iopolicy=round-robin" to cmdline.
+
+
+NUMA
+----
+
+The NUMA policy selects the path closest to the NUMA node of the current CPU for
+I/O distribution. This policy maintains the nearest paths to each NUMA node
+based on network interface connections.
+
+When to use the NUMA policy:
+ 1. Multi-core Systems: Optimizes memory access in multi-core and
+ multi-processor systems, especially under NUMA architecture.
+ 2. High Affinity Workloads: Binds I/O processing to the CPU to reduce
+ communication and data transfer delays across nodes.
+
+
+Round-Robin
+-----------
+
+The round-robin policy distributes I/O requests evenly across all paths to
+enhance throughput and resource utilization. Each I/O operation is sent to the
+next path in sequence.
+
+When to use the round-robin policy:
+ 1. Balanced Workloads: Effective for balanced and predictable workloads with
+ similar I/O size and type.
+ 2. Homogeneous Path Performance: Utilizes all paths efficiently when
+ performance characteristics (e.g., latency, bandwidth) are similar.
+
+
+Queue-Depth
+-----------
+
+The queue-depth policy manages I/O requests based on the current queue depth
+of each path, selecting the path with the least number of in-flight I/Os.
+
+When to use the queue-depth policy:
+ 1. High load with small I/Os: Effectively balances load across paths when
+ the load is high, and I/O operations consist of small, relatively
+ fixed-sized requests.
diff --git a/Documentation/admin-guide/perf/alibaba_pmu.rst b/Documentation/admin-guide/perf/alibaba_pmu.rst
index 11de998bb480..7d840023903f 100644
--- a/Documentation/admin-guide/perf/alibaba_pmu.rst
+++ b/Documentation/admin-guide/perf/alibaba_pmu.rst
@@ -88,6 +88,11 @@ data bandwidth::
-e ali_drw_27080/hif_rmw/ \
-e ali_drw_27080/cycle/ -- sleep 10
+Example usage of counting all memory read/write bandwidth by metric::
+
+ perf stat -M ddr_read_bandwidth.all -- sleep 10
+ perf stat -M ddr_write_bandwidth.all -- sleep 10
+
The average DRAM bandwidth can be calculated as follows:
- Read Bandwidth = perf_hif_rd * DDRC_WIDTH * DDRC_Freq / DDRC_Cycle
diff --git a/Documentation/admin-guide/perf/ampere_cspmu.rst b/Documentation/admin-guide/perf/ampere_cspmu.rst
new file mode 100644
index 000000000000..94f93f5aee6c
--- /dev/null
+++ b/Documentation/admin-guide/perf/ampere_cspmu.rst
@@ -0,0 +1,29 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+============================================
+Ampere SoC Performance Monitoring Unit (PMU)
+============================================
+
+Ampere SoC PMU is a generic PMU IP that follows Arm CoreSight PMU architecture.
+Therefore, the driver is implemented as a submodule of arm_cspmu driver. At the
+first phase it's used for counting MCU events on AmpereOne.
+
+
+MCU PMU events
+--------------
+
+The PMU driver supports setting filters for "rank", "bank", and "threshold".
+Note, that the filters are per PMU instance rather than per event.
+
+
+Example for perf tool use::
+
+ / # perf list ampere
+
+ ampere_mcu_pmu_0/act_sent/ [Kernel PMU event]
+ <...>
+ ampere_mcu_pmu_1/rd_sent/ [Kernel PMU event]
+ <...>
+
+ / # perf stat -a -e ampere_mcu_pmu_0/act_sent,bank=5,rank=3,threshold=2/,ampere_mcu_pmu_1/rd_sent/ \
+ sleep 1
diff --git a/Documentation/admin-guide/perf/arm-ni.rst b/Documentation/admin-guide/perf/arm-ni.rst
new file mode 100644
index 000000000000..d26a8f697c36
--- /dev/null
+++ b/Documentation/admin-guide/perf/arm-ni.rst
@@ -0,0 +1,17 @@
+====================================
+Arm Network-on Chip Interconnect PMU
+====================================
+
+NI-700 and friends implement a distinct PMU for each clock domain within the
+interconnect. Correspondingly, the driver exposes multiple PMU devices named
+arm_ni_<x>_cd_<y>, where <x> is an (arbitrary) instance identifier and <y> is
+the clock domain ID within that particular instance. If multiple NI instances
+exist within a system, the PMU devices can be correlated with the underlying
+hardware instance via sysfs parentage.
+
+Each PMU exposes base event aliases for the interface types present in its clock
+domain. These require qualifying with the "eventid" and "nodeid" parameters
+to specify the event code to count and the interface at which to count it
+(per the configured hardware ID as reflected in the xxNI_NODE_INFO register).
+The exception is the "cycles" alias for the PMU cycle counter, which is encoded
+with the PMU node type and needs no further qualification.
diff --git a/Documentation/admin-guide/perf/cxl.rst b/Documentation/admin-guide/perf/cxl.rst
new file mode 100644
index 000000000000..9233ea0d0b10
--- /dev/null
+++ b/Documentation/admin-guide/perf/cxl.rst
@@ -0,0 +1,68 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+======================================
+CXL Performance Monitoring Unit (CPMU)
+======================================
+
+The CXL rev 3.0 specification provides a definition of CXL Performance
+Monitoring Unit in section 13.2: Performance Monitoring.
+
+CXL components (e.g. Root Port, Switch Upstream Port, End Point) may have
+any number of CPMU instances. CPMU capabilities are fully discoverable from
+the devices. The specification provides event definitions for all CXL protocol
+message types and a set of additional events for things commonly counted on
+CXL devices (e.g. DRAM events).
+
+CPMU driver
+===========
+
+The CPMU driver registers a perf PMU with the name pmu_mem<X>.<Y> on the CXL bus
+representing the Yth CPMU for memX.
+
+ /sys/bus/cxl/device/pmu_mem<X>.<Y>
+
+The associated PMU is registered as
+
+ /sys/bus/event_sources/devices/cxl_pmu_mem<X>.<Y>
+
+In common with other CXL bus devices, the id has no specific meaning and the
+relationship to specific CXL device should be established via the device parent
+of the device on the CXL bus.
+
+PMU driver provides description of available events and filter options in sysfs.
+
+The "format" directory describes all formats of the config (event vendor id,
+group id and mask) config1 (threshold, filter enables) and config2 (filter
+parameters) fields of the perf_event_attr structure. The "events" directory
+describes all documented events show in perf list.
+
+The events shown in perf list are the most fine grained events with a single
+bit of the event mask set. More general events may be enable by setting
+multiple mask bits in config. For example, all Device to Host Read Requests
+may be captured on a single counter by setting the bits for all of
+
+* d2h_req_rdcurr
+* d2h_req_rdown
+* d2h_req_rdshared
+* d2h_req_rdany
+* d2h_req_rdownnodata
+
+Example of usage::
+
+ $#perf list
+ cxl_pmu_mem0.0/clock_ticks/ [Kernel PMU event]
+ cxl_pmu_mem0.0/d2h_req_rdshared/ [Kernel PMU event]
+ cxl_pmu_mem0.0/h2d_req_snpcur/ [Kernel PMU event]
+ cxl_pmu_mem0.0/h2d_req_snpdata/ [Kernel PMU event]
+ cxl_pmu_mem0.0/h2d_req_snpinv/ [Kernel PMU event]
+ -----------------------------------------------------------
+
+ $# perf stat -a -e cxl_pmu_mem0.0/clock_ticks/ -e cxl_pmu_mem0.0/d2h_req_rdshared/
+
+Vendor specific events may also be available and if so can be used via
+
+ $# perf stat -a -e cxl_pmu_mem0.0/vid=VID,gid=GID,mask=MASK/
+
+The driver does not support sampling so "perf record" is unsupported.
+It only supports system-wide counting so attaching to a task is
+unsupported.
diff --git a/Documentation/admin-guide/perf/dwc_pcie_pmu.rst b/Documentation/admin-guide/perf/dwc_pcie_pmu.rst
new file mode 100644
index 000000000000..167f9281fbf5
--- /dev/null
+++ b/Documentation/admin-guide/perf/dwc_pcie_pmu.rst
@@ -0,0 +1,94 @@
+======================================================================
+Synopsys DesignWare Cores (DWC) PCIe Performance Monitoring Unit (PMU)
+======================================================================
+
+DesignWare Cores (DWC) PCIe PMU
+===============================
+
+The PMU is a PCIe configuration space register block provided by each PCIe Root
+Port in a Vendor-Specific Extended Capability named RAS D.E.S (Debug, Error
+injection, and Statistics).
+
+As the name indicates, the RAS DES capability supports system level
+debugging, AER error injection, and collection of statistics. To facilitate
+collection of statistics, Synopsys DesignWare Cores PCIe controller
+provides the following two features:
+
+- one 64-bit counter for Time Based Analysis (RX/TX data throughput and
+ time spent in each low-power LTSSM state) and
+- one 32-bit counter per event for Event Counting (error and non-error
+ events for a specified lane)
+
+Note: There is no interrupt for counter overflow.
+
+Time Based Analysis
+-------------------
+
+Using this feature you can obtain information regarding RX/TX data
+throughput and time spent in each low-power LTSSM state by the controller.
+The PMU measures data in two categories:
+
+- Group#0: Percentage of time the controller stays in LTSSM states.
+- Group#1: Amount of data processed (Units of 16 bytes).
+
+Lane Event counters
+-------------------
+
+Using this feature you can obtain Error and Non-Error information in
+specific lane by the controller. The PMU event is selected by all of:
+
+- Group i
+- Event j within the Group i
+- Lane k
+
+Some of the events only exist for specific configurations.
+
+DesignWare Cores (DWC) PCIe PMU Driver
+=======================================
+
+This driver adds PMU devices for each PCIe Root Port named based on the SBDF of
+the Root Port. For example,
+
+ 0001:30:03.0 PCI bridge: Device 1ded:8000 (rev 01)
+
+the PMU device name for this Root Port is dwc_rootport_13018.
+
+The DWC PCIe PMU driver registers a perf PMU driver, which provides
+description of available events and configuration options in sysfs, see
+/sys/bus/event_source/devices/dwc_rootport_{sbdf}.
+
+The "format" directory describes format of the config fields of the
+perf_event_attr structure. The "events" directory provides configuration
+templates for all documented events. For example,
+"rx_pcie_tlp_data_payload" is an equivalent of "eventid=0x21,type=0x0".
+
+The "perf list" command shall list the available events from sysfs, e.g.::
+
+ $# perf list | grep dwc_rootport
+ <...>
+ dwc_rootport_13018/Rx_PCIe_TLP_Data_Payload/ [Kernel PMU event]
+ <...>
+ dwc_rootport_13018/rx_memory_read,lane=?/ [Kernel PMU event]
+
+Time Based Analysis Event Usage
+-------------------------------
+
+Example usage of counting PCIe RX TLP data payload (Units of bytes)::
+
+ $# perf stat -a -e dwc_rootport_13018/Rx_PCIe_TLP_Data_Payload/
+
+The average RX/TX bandwidth can be calculated using the following formula:
+
+ PCIe RX Bandwidth = rx_pcie_tlp_data_payload / Measure_Time_Window
+ PCIe TX Bandwidth = tx_pcie_tlp_data_payload / Measure_Time_Window
+
+Lane Event Usage
+-------------------------------
+
+Each lane has the same event set and to avoid generating a list of hundreds
+of events, the user need to specify the lane ID explicitly, e.g.::
+
+ $# perf stat -a -e dwc_rootport_13018/rx_memory_read,lane=4/
+
+The driver does not support sampling, therefore "perf record" will not
+work. Per-task (without "-a") perf sessions are not supported.
diff --git a/Documentation/admin-guide/perf/fujitsu_uncore_pmu.rst b/Documentation/admin-guide/perf/fujitsu_uncore_pmu.rst
new file mode 100644
index 000000000000..2ec0249e37b6
--- /dev/null
+++ b/Documentation/admin-guide/perf/fujitsu_uncore_pmu.rst
@@ -0,0 +1,115 @@
+.. SPDX-License-Identifier: GPL-2.0-only
+
+================================================
+Fujitsu Uncore Performance Monitoring Unit (PMU)
+================================================
+
+This driver supports the Uncore MAC PMUs and the Uncore PCI PMUs found
+in Fujitsu chips.
+Each MAC PMU on these chips is exposed as a uncore perf PMU with device name
+mac_iod<iod>_mac<mac>_ch<ch>.
+And each PCI PMU on these chips is exposed as a uncore perf PMU with device name
+pci_iod<iod>_pci<pci>.
+
+The driver provides a description of its available events and configuration
+options in sysfs, see /sys/bus/event_sources/devices/mac_iod<iod>_mac<mac>_ch<ch>/
+and /sys/bus/event_sources/devices/pci_iod<iod>_pci<pci>/.
+This driver exports:
+
+- formats, used by perf user space and other tools to configure events
+- events, used by perf user space and other tools to create events
+ symbolically, e.g.::
+
+ perf stat -a -e mac_iod0_mac0_ch0/event=0x21/ ls
+ perf stat -a -e pci_iod0_pci0/event=0x24/ ls
+
+- cpumask, used by perf user space and other tools to know on which CPUs
+ to open the events
+
+This driver supports the following events for MAC:
+
+- cycles
+ This event counts MAC cycles at MAC frequency.
+- read-count
+ This event counts the number of read requests to MAC.
+- read-count-request
+ This event counts the number of read requests including retry to MAC.
+- read-count-return
+ This event counts the number of responses to read requests to MAC.
+- read-count-request-pftgt
+ This event counts the number of read requests including retry with PFTGT
+ flag.
+- read-count-request-normal
+ This event counts the number of read requests including retry without PFTGT
+ flag.
+- read-count-return-pftgt-hit
+ This event counts the number of responses to read requests which hit the
+ PFTGT buffer.
+- read-count-return-pftgt-miss
+ This event counts the number of responses to read requests which miss the
+ PFTGT buffer.
+- read-wait
+ This event counts outstanding read requests issued by DDR memory controller
+ per cycle.
+- write-count
+ This event counts the number of write requests to MAC (including zero write,
+ full write, partial write, write cancel).
+- write-count-write
+ This event counts the number of full write requests to MAC (not including
+ zero write).
+- write-count-pwrite
+ This event counts the number of partial write requests to MAC.
+- memory-read-count
+ This event counts the number of read requests from MAC to memory.
+- memory-write-count
+ This event counts the number of full write requests from MAC to memory.
+- memory-pwrite-count
+ This event counts the number of partial write requests from MAC to memory.
+- ea-mac
+ This event counts energy consumption of MAC.
+- ea-memory
+ This event counts energy consumption of memory.
+- ea-memory-mac-write
+ This event counts the number of write requests from MAC to memory.
+- ea-ha
+ This event counts energy consumption of HA.
+
+ 'ea' is the abbreviation for 'Energy Analyzer'.
+
+Examples for use with perf::
+
+ perf stat -e mac_iod0_mac0_ch0/ea-mac/ ls
+
+And, this driver supports the following events for PCI:
+
+- pci-port0-cycles
+ This event counts PCI cycles at PCI frequency in port0.
+- pci-port0-read-count
+ This event counts read transactions for data transfer in port0.
+- pci-port0-read-count-bus
+ This event counts read transactions for bus usage in port0.
+- pci-port0-write-count
+ This event counts write transactions for data transfer in port0.
+- pci-port0-write-count-bus
+ This event counts write transactions for bus usage in port0.
+- pci-port1-cycles
+ This event counts PCI cycles at PCI frequency in port1.
+- pci-port1-read-count
+ This event counts read transactions for data transfer in port1.
+- pci-port1-read-count-bus
+ This event counts read transactions for bus usage in port1.
+- pci-port1-write-count
+ This event counts write transactions for data transfer in port1.
+- pci-port1-write-count-bus
+ This event counts write transactions for bus usage in port1.
+- ea-pci
+ This event counts energy consumption of PCI.
+
+ 'ea' is the abbreviation for 'Energy Analyzer'.
+
+Examples for use with perf::
+
+ perf stat -e pci_iod0_pci0/ea-pci/ ls
+
+Given that these are uncore PMUs the driver does not support sampling, therefore
+"perf record" will not work. Per-task perf sessions are not supported.
diff --git a/Documentation/admin-guide/perf/hisi-pcie-pmu.rst b/Documentation/admin-guide/perf/hisi-pcie-pmu.rst
index 7e863662e2d4..083ca50de896 100644
--- a/Documentation/admin-guide/perf/hisi-pcie-pmu.rst
+++ b/Documentation/admin-guide/perf/hisi-pcie-pmu.rst
@@ -28,7 +28,9 @@ The "identifier" sysfs file allows users to identify the version of the
PMU hardware device.
The "bus" sysfs file allows users to get the bus number of Root Ports
-monitored by PMU.
+monitored by PMU. Furthermore users can get the Root Ports range in
+[bdf_min, bdf_max] from "bdf_min" and "bdf_max" sysfs attributes
+respectively.
Example usage of perf::
@@ -37,9 +39,21 @@ Example usage of perf::
hisi_pcie0_core0/rx_mwr_cnt/ [kernel PMU event]
------------------------------------------
- $# perf stat -e hisi_pcie0_core0/rx_mwr_latency/
- $# perf stat -e hisi_pcie0_core0/rx_mwr_cnt/
- $# perf stat -g -e hisi_pcie0_core0/rx_mwr_latency/ -e hisi_pcie0_core0/rx_mwr_cnt/
+ $# perf stat -e hisi_pcie0_core0/rx_mwr_latency,port=0xffff/
+ $# perf stat -e hisi_pcie0_core0/rx_mwr_cnt,port=0xffff/
+
+The related events usually used to calculate the bandwidth, latency or others.
+They need to start and end counting at the same time, therefore related events
+are best used in the same event group to get the expected value. There are two
+ways to know if they are related events:
+
+a) By event name, such as the latency events "xxx_latency, xxx_cnt" or
+ bandwidth events "xxx_flux, xxx_time".
+b) By event type, such as "event=0xXXXX, event=0x1XXXX".
+
+Example usage of perf group::
+
+ $# perf stat -e "{hisi_pcie0_core0/rx_mwr_latency,port=0xffff/,hisi_pcie0_core0/rx_mwr_cnt,port=0xffff/}"
The current driver does not support sampling. So "perf record" is unsupported.
Also attach to a task is unsupported for PCIe PMU.
@@ -51,8 +65,12 @@ Filter options
PMU could only monitor the performance of traffic downstream target Root
Ports or downstream target Endpoint. PCIe PMU driver support "port" and
- "bdf" interfaces for users, and these two interfaces aren't supported at the
- same time.
+ "bdf" interfaces for users.
+ Please notice that, one of these two interfaces must be set, and these two
+ interfaces aren't supported at the same time. If they are both set, only
+ "port" filter is valid.
+ If "port" filter not being set or is set explicitly to zero (default), the
+ "bdf" filter will be in effect, because "bdf=0" meaning 0000:000:00.0.
- port
@@ -95,7 +113,7 @@ Filter options
Example usage of perf::
- $# perf stat -e hisi_pcie0_core0/rx_mrd_flux,trig_len=0x4,trig_mode=1/ sleep 5
+ $# perf stat -e hisi_pcie0_core0/rx_mrd_flux,port=0xffff,trig_len=0x4,trig_mode=1/ sleep 5
3. Threshold filter
@@ -109,7 +127,7 @@ Filter options
Example usage of perf::
- $# perf stat -e hisi_pcie0_core0/rx_mrd_flux,thr_len=0x4,thr_mode=1/ sleep 5
+ $# perf stat -e hisi_pcie0_core0/rx_mrd_flux,port=0xffff,thr_len=0x4,thr_mode=1/ sleep 5
4. TLP Length filter
@@ -127,4 +145,4 @@ Filter options
Example usage of perf::
- $# perf stat -e hisi_pcie0_core0/rx_mrd_flux,len_mode=0x1/ sleep 5
+ $# perf stat -e hisi_pcie0_core0/rx_mrd_flux,port=0xffff,len_mode=0x1/ sleep 5
diff --git a/Documentation/admin-guide/perf/hisi-pmu.rst b/Documentation/admin-guide/perf/hisi-pmu.rst
index 546979360513..d56b2d690709 100644
--- a/Documentation/admin-guide/perf/hisi-pmu.rst
+++ b/Documentation/admin-guide/perf/hisi-pmu.rst
@@ -18,10 +18,10 @@ HiSilicon SoC uncore PMU driver
Each device PMU has separate registers for event counting, control and
interrupt, and the PMU driver shall register perf PMU drivers like L3C,
HHA and DDRC etc. The available events and configuration options shall
-be described in the sysfs, see:
+be described in the sysfs, see::
+
+/sys/bus/event_source/devices/hisi_sccl{X}_<l3c{Y}/hha{Y}/ddrc{Y}>
-/sys/devices/hisi_sccl{X}_<l3c{Y}/hha{Y}/ddrc{Y}>/, or
-/sys/bus/event_source/devices/hisi_sccl{X}_<l3c{Y}/hha{Y}/ddrc{Y}>.
The "perf list" command shall list the available events from sysfs.
Each L3C, HHA and DDRC is registered as a separate PMU with perf. The PMU
@@ -36,7 +36,10 @@ e.g. hisi_sccl1_hha0/rx_operations is RX_OPERATIONS event of HHA index #0 in
SCCL ID #1.
The driver also provides a "cpumask" sysfs attribute, which shows the CPU core
-ID used to count the uncore PMU event.
+ID used to count the uncore PMU event. An "associated_cpus" sysfs attribute is
+also provided to show the CPUs associated with this PMU. The "cpumask" indicates
+the CPUs to open the events, usually as a hint for userspaces tools like perf.
+It only contains one associated CPU from the "associated_cpus".
Example usage of perf::
@@ -56,14 +59,18 @@ Example usage of perf::
For HiSilicon uncore PMU v2 whose identifier is 0x30, the topology is the same
as PMU v1, but some new functions are added to the hardware.
-(a) L3C PMU supports filtering by core/thread within the cluster which can be
+1. L3C PMU supports filtering by core/thread within the cluster which can be
specified as a bitmap::
$# perf stat -a -e hisi_sccl3_l3c0/config=0x02,tt_core=0x3/ sleep 5
This will only count the operations from core/thread 0 and 1 in this cluster.
-(b) Tracetag allow the user to chose to count only read, write or atomic
+User should not use tt_core_deprecated to specify the core/thread filtering.
+This option is provided for backward compatiblility and only support 8bit
+which may not cover all the core/thread sharing L3C.
+
+2. Tracetag allow the user to chose to count only read, write or atomic
operations via the tt_req parameeter in perf. The default value counts all
operations. tt_req is 3bits, 3'b100 represents read operations, 3'b101
represents write operations, 3'b110 represents atomic store operations and
@@ -73,14 +80,16 @@ represents write operations, 3'b110 represents atomic store operations and
This will only count the read operations in this cluster.
-(c) Datasrc allows the user to check where the data comes from. It is 5 bits.
+3. Datasrc allows the user to check where the data comes from. It is 5 bits.
Some important codes are as follows:
-5'b00001: comes from L3C in this die;
-5'b01000: comes from L3C in the cross-die;
-5'b01001: comes from L3C which is in another socket;
-5'b01110: comes from the local DDR;
-5'b01111: comes from the cross-die DDR;
-5'b10000: comes from cross-socket DDR;
+
+- 5'b00001: comes from L3C in this die;
+- 5'b01000: comes from L3C in the cross-die;
+- 5'b01001: comes from L3C which is in another socket;
+- 5'b01110: comes from the local DDR;
+- 5'b01111: comes from the cross-die DDR;
+- 5'b10000: comes from cross-socket DDR;
+
etc, it is mainly helpful to find that the data source is nearest from the CPU
cores. If datasrc_cfg is used in the multi-chips, the datasrc_skt shall be
configured in perf command::
@@ -88,15 +97,69 @@ configured in perf command::
$# perf stat -a -e hisi_sccl3_l3c0/config=0xb9,datasrc_cfg=0xE/,
hisi_sccl3_l3c0/config=0xb9,datasrc_cfg=0xF/ sleep 5
-(d)Some HiSilicon SoCs encapsulate multiple CPU and IO dies. Each CPU die
+4. Some HiSilicon SoCs encapsulate multiple CPU and IO dies. Each CPU die
contains several Compute Clusters (CCLs). The I/O dies are called Super I/O
clusters (SICL) containing multiple I/O clusters (ICLs). Each CCL/ICL in the
SoC has a unique ID. Each ID is 11bits, include a 6-bit SCCL-ID and 5-bit
CCL/ICL-ID. For I/O die, the ICL-ID is followed by:
-5'b00000: I/O_MGMT_ICL;
-5'b00001: Network_ICL;
-5'b00011: HAC_ICL;
-5'b10000: PCIe_ICL;
+
+- 5'b00000: I/O_MGMT_ICL;
+- 5'b00001: Network_ICL;
+- 5'b00011: HAC_ICL;
+- 5'b10000: PCIe_ICL;
+
+5. uring_channel: UC PMU events 0x47~0x59 supports filtering by tx request
+uring channel. It is 2 bits. Some important codes are as follows:
+
+- 2'b11: count the events which sent to the uring_ext (MATA) channel;
+- 2'b01: is the same as 2'b11;
+- 2'b10: count the events which sent to the uring (non-MATA) channel;
+- 2'b00: default value, count the events which sent to both uring and
+ uring_ext channels;
+
+6. ch: NoC PMU supports filtering the event counts of certain transaction
+channel with this option. The current supported channels are as follows:
+
+- 3'b010: Request channel
+- 3'b100: Snoop channel
+- 3'b110: Response channel
+- 3'b111: Data channel
+
+7. tt_en: NoC PMU supports counting only transactions that have tracetag set
+if this option is set. See the 2nd list for more information about tracetag.
+
+For HiSilicon uncore PMU v3 whose identifier is 0x40, some uncore PMUs are
+further divided into parts for finer granularity of tracing, each part has its
+own dedicated PMU, and all such PMUs together cover the monitoring job of events
+on particular uncore device. Such PMUs are described in sysfs with name format
+slightly changed::
+
+/sys/bus/event_source/devices/hisi_sccl{X}_<l3c{Y}_{Z}/ddrc{Y}_{Z}/noc{Y}_{Z}>
+
+Z is the sub-id, indicating different PMUs for part of hardware device.
+
+Usage of most PMUs with different sub-ids are identical. Specially, L3C PMU
+provides ``ext`` option to allow exploration of even finer granual statistics
+of L3C PMU. L3C PMU driver uses that as hint of termination when delivering
+perf command to hardware:
+
+- ext=0: Default, could be used with event names.
+- ext=1 and ext=2: Must be used with event codes, event names are not supported.
+
+An example of perf command could be::
+
+ $# perf stat -a -e hisi_sccl0_l3c1_0/rd_spipe/ sleep 5
+
+or::
+
+ $# perf stat -a -e hisi_sccl0_l3c1_0/event=0x1,ext=1/ sleep 5
+
+As above, ``hisi_sccl0_l3c1_0`` locates PMU of Super CPU CLuster 0, L3 cache 1
+pipe0.
+
+First command locates the first part of L3C since ``ext=0`` is implied by
+default. Second command issues the counting on another part of L3C with the
+event ``0x1``.
Users could configure IDs to count data come from specific CCL/ICL, by setting
srcid_cmd & srcid_msk, and data desitined for specific CCL/ICL by setting
diff --git a/Documentation/admin-guide/perf/hns3-pmu.rst b/Documentation/admin-guide/perf/hns3-pmu.rst
index 75a40846d47f..1195e570f2d6 100644
--- a/Documentation/admin-guide/perf/hns3-pmu.rst
+++ b/Documentation/admin-guide/perf/hns3-pmu.rst
@@ -16,7 +16,7 @@ HNS3 PMU driver
The HNS3 PMU driver registers a perf PMU with the name of its sicl id.::
- /sys/devices/hns3_pmu_sicl_<sicl_id>
+ /sys/bus/event_source/devices/hns3_pmu_sicl_<sicl_id>
PMU driver provides description of available events, filter modes, format,
identifier and cpumask in sysfs.
@@ -40,9 +40,9 @@ device.
Example usage of checking event code and subevent code::
- $# cat /sys/devices/hns3_pmu_sicl_0/events/dly_tx_normal_to_mac_time
+ $# cat /sys/bus/event_source/devices/hns3_pmu_sicl_0/events/dly_tx_normal_to_mac_time
config=0x00204
- $# cat /sys/devices/hns3_pmu_sicl_0/events/dly_tx_normal_to_mac_packet_num
+ $# cat /sys/bus/event_source/devices/hns3_pmu_sicl_0/events/dly_tx_normal_to_mac_packet_num
config=0x10204
Each performance statistic has a pair of events to get two values to
@@ -60,7 +60,7 @@ computation to calculate real performance data is:::
Example usage of checking supported filter mode::
- $# cat /sys/devices/hns3_pmu_sicl_0/filtermode/bw_ssu_rpu_byte_num
+ $# cat /sys/bus/event_source/devices/hns3_pmu_sicl_0/filtermode/bw_ssu_rpu_byte_num
filter mode supported: global/port/port-tc/func/func-queue/
Example usage of perf::
diff --git a/Documentation/admin-guide/perf/imx-ddr.rst b/Documentation/admin-guide/perf/imx-ddr.rst
index 90926d0fb8ec..77418ae5a290 100644
--- a/Documentation/admin-guide/perf/imx-ddr.rst
+++ b/Documentation/admin-guide/perf/imx-ddr.rst
@@ -13,8 +13,8 @@ is one register for each counter. Counter 0 is special in that it always counts
interrupt is raised. If any other counter overflows, it continues counting, and
no interrupt is raised.
-The "format" directory describes format of the config (event ID) and config1
-(AXI filtering) fields of the perf_event_attr structure, see /sys/bus/event_source/
+The "format" directory describes format of the config (event ID) and config1/2
+(AXI filter setting) fields of the perf_event_attr structure, see /sys/bus/event_source/
devices/imx8_ddr0/format/. The "events" directory describes the events types
hardware supported that can be used with perf tool, see /sys/bus/event_source/
devices/imx8_ddr0/events/. The "caps" directory describes filter features implemented
@@ -28,12 +28,11 @@ in DDR PMU, see /sys/bus/events_source/devices/imx8_ddr0/caps/.
AXI filtering is only used by CSV modes 0x41 (axid-read) and 0x42 (axid-write)
to count reading or writing matches filter setting. Filter setting is various
from different DRAM controller implementations, which is distinguished by quirks
-in the driver. You also can dump info from userspace, filter in "caps" directory
-indicates whether PMU supports AXI ID filter or not; enhanced_filter indicates
-whether PMU supports enhanced AXI ID filter or not. Value 0 for un-supported, and
-value 1 for supported.
+in the driver. You also can dump info from userspace, "caps" directory show the
+type of AXI filter (filter, enhanced_filter and super_filter). Value 0 for
+un-supported, and value 1 for supported.
-* With DDR_CAP_AXI_ID_FILTER quirk(filter: 1, enhanced_filter: 0).
+* With DDR_CAP_AXI_ID_FILTER quirk(filter: 1, enhanced_filter: 0, super_filter: 0).
Filter is defined with two configuration parts:
--AXI_ID defines AxID matching value.
--AXI_MASKING defines which bits of AxID are meaningful for the matching.
@@ -65,7 +64,37 @@ value 1 for supported.
perf stat -a -e imx8_ddr0/axid-read,axi_id=0x12/ cmd, which will monitor ARID=0x12
-* With DDR_CAP_AXI_ID_FILTER_ENHANCED quirk(filter: 1, enhanced_filter: 1).
+* With DDR_CAP_AXI_ID_FILTER_ENHANCED quirk(filter: 1, enhanced_filter: 1, super_filter: 0).
This is an extension to the DDR_CAP_AXI_ID_FILTER quirk which permits
counting the number of bytes (as opposed to the number of bursts) from DDR
read and write transactions concurrently with another set of data counters.
+
+* With DDR_CAP_AXI_ID_PORT_CHANNEL_FILTER quirk(filter: 0, enhanced_filter: 0, super_filter: 1).
+ There is a limitation in previous AXI filter, it cannot filter different IDs
+ at the same time as the filter is shared between counters. This quirk is the
+ extension of AXI ID filter. One improvement is that counter 1-3 has their own
+ filter, means that it supports concurrently filter various IDs. Another
+ improvement is that counter 1-3 supports AXI PORT and CHANNEL selection. Support
+ selecting address channel or data channel.
+
+ Filter is defined with 2 configuration registers per counter 1-3.
+ --Counter N MASK COMP register - including AXI_ID and AXI_MASKING.
+ --Counter N MUX CNTL register - including AXI CHANNEL and AXI PORT.
+
+ - 0: address channel
+ - 1: data channel
+
+ PMU in DDR subsystem, only one single port0 exists, so axi_port is reserved
+ which should be 0.
+
+ .. code-block:: bash
+
+ perf stat -a -e imx8_ddr0/axid-read,axi_mask=0xMMMM,axi_id=0xDDDD,axi_channel=0xH/ cmd
+ perf stat -a -e imx8_ddr0/axid-write,axi_mask=0xMMMM,axi_id=0xDDDD,axi_channel=0xH/ cmd
+
+ .. note::
+
+ axi_channel is inverted in userspace, and it will be reverted in driver
+ automatically. So that users do not need specify axi_channel if want to
+ monitor data channel from DDR transactions, since data channel is more
+ meaningful.
diff --git a/Documentation/admin-guide/perf/index.rst b/Documentation/admin-guide/perf/index.rst
index 9de64a40adab..47d9a3df6329 100644
--- a/Documentation/admin-guide/perf/index.rst
+++ b/Documentation/admin-guide/perf/index.rst
@@ -13,11 +13,20 @@ Performance monitor support
imx-ddr
qcom_l2_pmu
qcom_l3_pmu
+ starfive_starlink_pmu
+ mrvl-odyssey-ddr-pmu
+ mrvl-odyssey-tad-pmu
arm-ccn
arm-cmn
+ arm-ni
xgene-pmu
arm_dsu_pmu
thunderx2-pmu
alibaba_pmu
+ dwc_pcie_pmu
nvidia-pmu
meson-ddr-pmu
+ cxl
+ ampere_cspmu
+ mrvl-pem-pmu
+ fujitsu_uncore_pmu
diff --git a/Documentation/admin-guide/perf/mrvl-odyssey-ddr-pmu.rst b/Documentation/admin-guide/perf/mrvl-odyssey-ddr-pmu.rst
new file mode 100644
index 000000000000..2e817593a4d9
--- /dev/null
+++ b/Documentation/admin-guide/perf/mrvl-odyssey-ddr-pmu.rst
@@ -0,0 +1,80 @@
+===================================================================
+Marvell Odyssey DDR PMU Performance Monitoring Unit (PMU UNCORE)
+===================================================================
+
+Odyssey DRAM Subsystem supports eight counters for monitoring performance
+and software can program those counters to monitor any of the defined
+performance events. Supported performance events include those counted
+at the interface between the DDR controller and the PHY, interface between
+the DDR Controller and the CHI interconnect, or within the DDR Controller.
+
+Additionally DSS also supports two fixed performance event counters, one
+for ddr reads and the other for ddr writes.
+
+The counter will be operating in either manual or auto mode.
+
+The PMU driver exposes the available events and format options under sysfs::
+
+ /sys/bus/event_source/devices/mrvl_ddr_pmu_<>/events/
+ /sys/bus/event_source/devices/mrvl_ddr_pmu_<>/format/
+
+Examples::
+
+ $ perf list | grep ddr
+ mrvl_ddr_pmu_<>/ddr_act_bypass_access/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_bsm_alloc/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_bsm_starvation/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_cam_active_access/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_cam_mwr/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_cam_rd_active_access/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_cam_rd_or_wr_access/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_cam_read/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_cam_wr_access/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_cam_write/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_capar_error/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_crit_ref/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_ddr_reads/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_ddr_writes/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_dfi_cmd_is_retry/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_dfi_cycles/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_dfi_parity_poison/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_dfi_rd_data_access/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_dfi_wr_data_access/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_dqsosc_mpc/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_dqsosc_mrr/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_enter_mpsm/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_enter_powerdown/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_enter_selfref/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_hif_pri_rdaccess/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_hif_rd_access/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_hif_rd_or_wr_access/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_hif_rmw_access/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_hif_wr_access/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_hpri_sched_rd_crit_access/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_load_mode/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_lpri_sched_rd_crit_access/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_precharge/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_precharge_for_other/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_precharge_for_rdwr/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_raw_hazard/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_rd_bypass_access/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_rd_crc_error/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_rd_uc_ecc_error/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_rdwr_transitions/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_refresh/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_retry_fifo_full/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_spec_ref/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_tcr_mrr/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_war_hazard/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_waw_hazard/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_win_limit_reached_rd/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_win_limit_reached_wr/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_wr_crc_error/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_wr_trxn_crit_access/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_write_combine/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_zqcl/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_zqlatch/ [Kernel PMU event]
+ mrvl_ddr_pmu_<>/ddr_zqstart/ [Kernel PMU event]
+
+ $ perf stat -e ddr_cam_read,ddr_cam_write,ddr_cam_active_access,ddr_cam
+ rd_or_wr_access,ddr_cam_rd_active_access,ddr_cam_mwr <workload>
diff --git a/Documentation/admin-guide/perf/mrvl-odyssey-tad-pmu.rst b/Documentation/admin-guide/perf/mrvl-odyssey-tad-pmu.rst
new file mode 100644
index 000000000000..ad1975b14087
--- /dev/null
+++ b/Documentation/admin-guide/perf/mrvl-odyssey-tad-pmu.rst
@@ -0,0 +1,37 @@
+====================================================================
+Marvell Odyssey LLC-TAD Performance Monitoring Unit (PMU UNCORE)
+====================================================================
+
+Each TAD provides eight 64-bit counters for monitoring
+cache behavior.The driver always configures the same counter for
+all the TADs. The user would end up effectively reserving one of
+eight counters in every TAD to look across all TADs.
+The occurrences of events are aggregated and presented to the user
+at the end of running the workload. The driver does not provide a
+way for the user to partition TADs so that different TADs are used for
+different applications.
+
+The performance events reflect various internal or interface activities.
+By combining the values from multiple performance counters, cache
+performance can be measured in terms such as: cache miss rate, cache
+allocations, interface retry rate, internal resource occupancy, etc.
+
+The PMU driver exposes the available events and format options under sysfs::
+
+ /sys/bus/event_source/devices/tad/events/
+ /sys/bus/event_source/devices/tad/format/
+
+Examples::
+
+ $ perf list | grep tad
+ tad/tad_alloc_any/ [Kernel PMU event]
+ tad/tad_alloc_dtg/ [Kernel PMU event]
+ tad/tad_alloc_ltg/ [Kernel PMU event]
+ tad/tad_hit_any/ [Kernel PMU event]
+ tad/tad_hit_dtg/ [Kernel PMU event]
+ tad/tad_hit_ltg/ [Kernel PMU event]
+ tad/tad_req_msh_in_exlmn/ [Kernel PMU event]
+ tad/tad_tag_rd/ [Kernel PMU event]
+ tad/tad_tot_cycle/ [Kernel PMU event]
+
+ $ perf stat -e tad_alloc_dtg,tad_alloc_ltg,tad_alloc_any,tad_hit_dtg,tad_hit_ltg,tad_hit_any,tad_tag_rd <workload>
diff --git a/Documentation/admin-guide/perf/mrvl-pem-pmu.rst b/Documentation/admin-guide/perf/mrvl-pem-pmu.rst
new file mode 100644
index 000000000000..c39007149b97
--- /dev/null
+++ b/Documentation/admin-guide/perf/mrvl-pem-pmu.rst
@@ -0,0 +1,56 @@
+=================================================================
+Marvell Odyssey PEM Performance Monitoring Unit (PMU UNCORE)
+=================================================================
+
+The PCI Express Interface Units(PEM) are associated with a corresponding
+monitoring unit. This includes performance counters to track various
+characteristics of the data that is transmitted over the PCIe link.
+
+The counters track inbound and outbound transactions which
+includes separate counters for posted/non-posted/completion TLPs.
+Also, inbound and outbound memory read requests along with their
+latencies can also be monitored. Address Translation Services(ATS)events
+such as ATS Translation, ATS Page Request, ATS Invalidation along with
+their corresponding latencies are also tracked.
+
+There are separate 64 bit counters to measure posted/non-posted/completion
+tlps in inbound and outbound transactions. ATS events are measured by
+different counters.
+
+The PMU driver exposes the available events and format options under sysfs,
+/sys/bus/event_source/devices/mrvl_pcie_rc_pmu_<>/events/
+/sys/bus/event_source/devices/mrvl_pcie_rc_pmu_<>/format/
+
+Examples::
+
+ # perf list | grep mrvl_pcie_rc_pmu
+ mrvl_pcie_rc_pmu_<>/ats_inv/ [Kernel PMU event]
+ mrvl_pcie_rc_pmu_<>/ats_inv_latency/ [Kernel PMU event]
+ mrvl_pcie_rc_pmu_<>/ats_pri/ [Kernel PMU event]
+ mrvl_pcie_rc_pmu_<>/ats_pri_latency/ [Kernel PMU event]
+ mrvl_pcie_rc_pmu_<>/ats_trans/ [Kernel PMU event]
+ mrvl_pcie_rc_pmu_<>/ats_trans_latency/ [Kernel PMU event]
+ mrvl_pcie_rc_pmu_<>/ib_inflight/ [Kernel PMU event]
+ mrvl_pcie_rc_pmu_<>/ib_reads/ [Kernel PMU event]
+ mrvl_pcie_rc_pmu_<>/ib_req_no_ro_ebus/ [Kernel PMU event]
+ mrvl_pcie_rc_pmu_<>/ib_req_no_ro_ncb/ [Kernel PMU event]
+ mrvl_pcie_rc_pmu_<>/ib_tlp_cpl_partid/ [Kernel PMU event]
+ mrvl_pcie_rc_pmu_<>/ib_tlp_dwords_cpl_partid/ [Kernel PMU event]
+ mrvl_pcie_rc_pmu_<>/ib_tlp_dwords_npr/ [Kernel PMU event]
+ mrvl_pcie_rc_pmu_<>/ib_tlp_dwords_pr/ [Kernel PMU event]
+ mrvl_pcie_rc_pmu_<>/ib_tlp_npr/ [Kernel PMU event]
+ mrvl_pcie_rc_pmu_<>/ib_tlp_pr/ [Kernel PMU event]
+ mrvl_pcie_rc_pmu_<>/ob_inflight_partid/ [Kernel PMU event]
+ mrvl_pcie_rc_pmu_<>/ob_merges_cpl_partid/ [Kernel PMU event]
+ mrvl_pcie_rc_pmu_<>/ob_merges_npr_partid/ [Kernel PMU event]
+ mrvl_pcie_rc_pmu_<>/ob_merges_pr_partid/ [Kernel PMU event]
+ mrvl_pcie_rc_pmu_<>/ob_reads_partid/ [Kernel PMU event]
+ mrvl_pcie_rc_pmu_<>/ob_tlp_cpl_partid/ [Kernel PMU event]
+ mrvl_pcie_rc_pmu_<>/ob_tlp_dwords_cpl_partid/ [Kernel PMU event]
+ mrvl_pcie_rc_pmu_<>/ob_tlp_dwords_npr_partid/ [Kernel PMU event]
+ mrvl_pcie_rc_pmu_<>/ob_tlp_dwords_pr_partid/ [Kernel PMU event]
+ mrvl_pcie_rc_pmu_<>/ob_tlp_npr_partid/ [Kernel PMU event]
+ mrvl_pcie_rc_pmu_<>/ob_tlp_pr_partid/ [Kernel PMU event]
+
+
+ # perf stat -e ib_inflight,ib_reads,ib_req_no_ro_ebus,ib_req_no_ro_ncb <workload>
diff --git a/Documentation/admin-guide/perf/nvidia-pmu.rst b/Documentation/admin-guide/perf/nvidia-pmu.rst
index 2e0d47cfe7ea..f538ef67e0e8 100644
--- a/Documentation/admin-guide/perf/nvidia-pmu.rst
+++ b/Documentation/admin-guide/perf/nvidia-pmu.rst
@@ -34,7 +34,7 @@ strongly-ordered (SO) PCIE write traffic to local/remote memory. Please see
traffic coverage.
The events and configuration options of this PMU device are described in sysfs,
-see /sys/bus/event_sources/devices/nvidia_scf_pmu_<socket-id>.
+see /sys/bus/event_source/devices/nvidia_scf_pmu_<socket-id>.
Example usage:
@@ -66,7 +66,7 @@ Please see :ref:`NVIDIA_Uncore_PMU_Traffic_Coverage_Section` for more info about
the PMU traffic coverage.
The events and configuration options of this PMU device are described in sysfs,
-see /sys/bus/event_sources/devices/nvidia_nvlink_c2c0_pmu_<socket-id>.
+see /sys/bus/event_source/devices/nvidia_nvlink_c2c0_pmu_<socket-id>.
Example usage:
@@ -86,6 +86,22 @@ Example usage:
perf stat -a -e nvidia_nvlink_c2c0_pmu_3/event=0x0/
+The NVLink-C2C has two ports that can be connected to one GPU (occupying both
+ports) or to two GPUs (one GPU per port). The user can use "port" bitmap
+parameter to select the port(s) to monitor. Each bit represents the port number,
+e.g. "port=0x1" corresponds to port 0 and "port=0x3" is for port 0 and 1. The
+PMU will monitor both ports by default if not specified.
+
+Example for port filtering:
+
+* Count event id 0x0 from the GPU connected with socket 0 on port 0::
+
+ perf stat -a -e nvidia_nvlink_c2c0_pmu_0/event=0x0,port=0x1/
+
+* Count event id 0x0 from the GPUs connected with socket 0 on port 0 and port 1::
+
+ perf stat -a -e nvidia_nvlink_c2c0_pmu_0/event=0x0,port=0x3/
+
NVLink-C2C1 PMU
-------------------
@@ -96,7 +112,7 @@ Please see :ref:`NVIDIA_Uncore_PMU_Traffic_Coverage_Section` for more info about
the PMU traffic coverage.
The events and configuration options of this PMU device are described in sysfs,
-see /sys/bus/event_sources/devices/nvidia_nvlink_c2c1_pmu_<socket-id>.
+see /sys/bus/event_source/devices/nvidia_nvlink_c2c1_pmu_<socket-id>.
Example usage:
@@ -116,6 +132,22 @@ Example usage:
perf stat -a -e nvidia_nvlink_c2c1_pmu_3/event=0x0/
+The NVLink-C2C has two ports that can be connected to one GPU (occupying both
+ports) or to two GPUs (one GPU per port). The user can use "port" bitmap
+parameter to select the port(s) to monitor. Each bit represents the port number,
+e.g. "port=0x1" corresponds to port 0 and "port=0x3" is for port 0 and 1. The
+PMU will monitor both ports by default if not specified.
+
+Example for port filtering:
+
+* Count event id 0x0 from the GPU connected with socket 0 on port 0::
+
+ perf stat -a -e nvidia_nvlink_c2c1_pmu_0/event=0x0,port=0x1/
+
+* Count event id 0x0 from the GPUs connected with socket 0 on port 0 and port 1::
+
+ perf stat -a -e nvidia_nvlink_c2c1_pmu_0/event=0x0,port=0x3/
+
CNVLink PMU
---------------
@@ -125,13 +157,14 @@ to local memory. For PCIE traffic, this PMU captures read and relaxed ordered
for more info about the PMU traffic coverage.
The events and configuration options of this PMU device are described in sysfs,
-see /sys/bus/event_sources/devices/nvidia_cnvlink_pmu_<socket-id>.
+see /sys/bus/event_source/devices/nvidia_cnvlink_pmu_<socket-id>.
Each SoC socket can be connected to one or more sockets via CNVLink. The user can
use "rem_socket" bitmap parameter to select the remote socket(s) to monitor.
Each bit represents the socket number, e.g. "rem_socket=0xE" corresponds to
-socket 1 to 3.
-/sys/bus/event_sources/devices/nvidia_cnvlink_pmu_<socket-id>/format/rem_socket
+socket 1 to 3. The PMU will monitor all remote sockets by default if not
+specified.
+/sys/bus/event_source/devices/nvidia_cnvlink_pmu_<socket-id>/format/rem_socket
shows the valid bits that can be set in the "rem_socket" parameter.
The PMU can not distinguish the remote traffic initiator, therefore it does not
@@ -165,12 +198,13 @@ local/remote memory. Please see :ref:`NVIDIA_Uncore_PMU_Traffic_Coverage_Section
for more info about the PMU traffic coverage.
The events and configuration options of this PMU device are described in sysfs,
-see /sys/bus/event_sources/devices/nvidia_pcie_pmu_<socket-id>.
+see /sys/bus/event_source/devices/nvidia_pcie_pmu_<socket-id>.
Each SoC socket can support multiple root ports. The user can use
"root_port" bitmap parameter to select the port(s) to monitor, i.e.
-"root_port=0xF" corresponds to root port 0 to 3.
-/sys/bus/event_sources/devices/nvidia_pcie_pmu_<socket-id>/format/root_port
+"root_port=0xF" corresponds to root port 0 to 3. The PMU will monitor all root
+ports by default if not specified.
+/sys/bus/event_source/devices/nvidia_pcie_pmu_<socket-id>/format/root_port
shows the valid bits that can be set in the "root_port" parameter.
Example usage:
diff --git a/Documentation/admin-guide/perf/qcom_l2_pmu.rst b/Documentation/admin-guide/perf/qcom_l2_pmu.rst
index c130178a4a55..c37c6be9b8d8 100644
--- a/Documentation/admin-guide/perf/qcom_l2_pmu.rst
+++ b/Documentation/admin-guide/perf/qcom_l2_pmu.rst
@@ -10,7 +10,7 @@ There is one logical L2 PMU exposed, which aggregates the results from
the physical PMUs.
The driver provides a description of its available events and configuration
-options in sysfs, see /sys/devices/l2cache_0.
+options in sysfs, see /sys/bus/event_source/devices/l2cache_0.
The "format" directory describes the format of the events.
diff --git a/Documentation/admin-guide/perf/qcom_l3_pmu.rst b/Documentation/admin-guide/perf/qcom_l3_pmu.rst
index a3d014a46bfd..a66556b7e985 100644
--- a/Documentation/admin-guide/perf/qcom_l3_pmu.rst
+++ b/Documentation/admin-guide/perf/qcom_l3_pmu.rst
@@ -9,7 +9,7 @@ PMU with device name l3cache_<socket>_<instance>. User space is responsible
for aggregating across slices.
The driver provides a description of its available events and configuration
-options in sysfs, see /sys/devices/l3cache*. Given that these are uncore PMUs
+options in sysfs, see /sys/bus/event_source/devices/l3cache*. Given that these are uncore PMUs
the driver also exposes a "cpumask" sysfs attribute which contains a mask
consisting of one CPU per socket which will be used to handle all the PMU
events on that socket.
diff --git a/Documentation/admin-guide/perf/starfive_starlink_pmu.rst b/Documentation/admin-guide/perf/starfive_starlink_pmu.rst
new file mode 100644
index 000000000000..2932ddb4eb76
--- /dev/null
+++ b/Documentation/admin-guide/perf/starfive_starlink_pmu.rst
@@ -0,0 +1,46 @@
+================================================
+StarFive StarLink Performance Monitor Unit (PMU)
+================================================
+
+StarFive StarLink Performance Monitor Unit (PMU) exists within the
+StarLink Coherent Network on Chip (CNoC) that connects multiple CPU
+clusters with an L3 memory system.
+
+The uncore PMU supports overflow interrupt, up to 16 programmable 64bit
+event counters, and an independent 64bit cycle counter.
+The PMU can only be accessed via Memory Mapped I/O and are common to the
+cores connected to the same PMU.
+
+Driver exposes supported PMU events in sysfs "events" directory under::
+
+ /sys/bus/event_source/devices/starfive_starlink_pmu/events/
+
+Driver exposes cpu used to handle PMU events in sysfs "cpumask" directory
+under::
+
+ /sys/bus/event_source/devices/starfive_starlink_pmu/cpumask/
+
+Driver describes the format of config (event ID) in sysfs "format" directory
+under::
+
+ /sys/bus/event_source/devices/starfive_starlink_pmu/format/
+
+Example of perf usage::
+
+ $ perf list
+
+ starfive_starlink_pmu/cycles/ [Kernel PMU event]
+ starfive_starlink_pmu/read_hit/ [Kernel PMU event]
+ starfive_starlink_pmu/read_miss/ [Kernel PMU event]
+ starfive_starlink_pmu/read_request/ [Kernel PMU event]
+ starfive_starlink_pmu/release_request/ [Kernel PMU event]
+ starfive_starlink_pmu/write_hit/ [Kernel PMU event]
+ starfive_starlink_pmu/write_miss/ [Kernel PMU event]
+ starfive_starlink_pmu/write_request/ [Kernel PMU event]
+ starfive_starlink_pmu/writeback/ [Kernel PMU event]
+
+
+ $ perf stat -a -e /starfive_starlink_pmu/cycles/ sleep 1
+
+Sampling is not supported. As a result, "perf record" is not supported.
+Attaching to a task is not supported, only system-wide counting is supported.
diff --git a/Documentation/admin-guide/perf/thunderx2-pmu.rst b/Documentation/admin-guide/perf/thunderx2-pmu.rst
index 01f158238ae1..9255f7bf9452 100644
--- a/Documentation/admin-guide/perf/thunderx2-pmu.rst
+++ b/Documentation/admin-guide/perf/thunderx2-pmu.rst
@@ -22,7 +22,7 @@ The thunderx2_pmu driver registers per-socket perf PMUs for the DMC and
L3C devices. Each PMU can be used to count up to 4 (DMC/L3C) or up to 8
(CCPI2) events simultaneously. The PMUs provide a description of their
available events and configuration options under sysfs, see
-/sys/devices/uncore_<l3c_S/dmc_S/ccpi2_S/>; S is the socket id.
+/sys/bus/event_source/devices/uncore_<l3c_S/dmc_S/ccpi2_S/>; S is the socket id.
The driver does not support sampling, therefore "perf record" will not
work. Per-task perf sessions are also not supported.
diff --git a/Documentation/admin-guide/perf/xgene-pmu.rst b/Documentation/admin-guide/perf/xgene-pmu.rst
index 644f8ed89152..98ccb8e777c4 100644
--- a/Documentation/admin-guide/perf/xgene-pmu.rst
+++ b/Documentation/admin-guide/perf/xgene-pmu.rst
@@ -13,7 +13,7 @@ PMU (perf) driver
The xgene-pmu driver registers several perf PMU drivers. Each of the perf
driver provides description of its available events and configuration options
-in sysfs, see /sys/devices/<l3cX/iobX/mcbX/mcX>/.
+in sysfs, see /sys/bus/event_source/devices/<l3cX/iobX/mcbX/mcX>/.
The "format" directory describes format of the config (event ID),
config1 (agent ID) fields of the perf_event_attr structure. The "events"
diff --git a/Documentation/admin-guide/pm/amd-pstate.rst b/Documentation/admin-guide/pm/amd-pstate.rst
index 1cf40f69278c..e1771f2225d5 100644
--- a/Documentation/admin-guide/pm/amd-pstate.rst
+++ b/Documentation/admin-guide/pm/amd-pstate.rst
@@ -72,7 +72,7 @@ to manage each performance update behavior. ::
Lowest non- | | | |
linear perf ------>+-----------------------+ +-----------------------+
| | | |
- | | Lowest perf ---->| |
+ | | Min perf ---->| |
| | | |
Lowest perf ------>+-----------------------+ +-----------------------+
| | | |
@@ -262,6 +262,17 @@ lowest non-linear performance in `AMD CPPC Performance Capability
<perf_cap_>`_.)
This attribute is read-only.
+``amd_pstate_hw_prefcore``
+
+Whether the platform supports the preferred core feature and it has been
+enabled. This attribute is read-only.
+
+``amd_pstate_prefcore_ranking``
+
+The performance ranking of the core. This number doesn't have any unit, but
+larger numbers are preferred at the time of reading. This can change at
+runtime based on platform conditions. This attribute is read-only.
+
``energy_performance_available_preferences``
A list of all the supported EPP preferences that could be used for
@@ -281,6 +292,22 @@ integer values defined between 0 to 255 when EPP feature is enabled by platform
firmware, if EPP feature is disabled, driver will ignore the written value
This attribute is read-write.
+``boost``
+The `boost` sysfs attribute provides control over the CPU core
+performance boost, allowing users to manage the maximum frequency limitation
+of the CPU. This attribute can be used to enable or disable the boost feature
+on individual CPUs.
+
+When the boost feature is enabled, the CPU can dynamically increase its frequency
+beyond the base frequency, providing enhanced performance for demanding workloads.
+On the other hand, disabling the boost feature restricts the CPU to operate at the
+base frequency, which may be desirable in certain scenarios to prioritize power
+efficiency or manage temperature.
+
+To manipulate the `boost` attribute, users can write a value of `0` to disable the
+boost or `1` to enable it, for the respective CPU using the sysfs path
+`/sys/devices/system/cpu/cpuX/cpufreq/boost`, where `X` represents the CPU number.
+
Other performance and frequency values can be read back from
``/sys/devices/system/cpu/cpuX/acpi_cppc/``, see :ref:`cppc_sysfs`.
@@ -300,8 +327,8 @@ platforms. The AMD P-States mechanism is the more performance and energy
efficiency frequency management method on AMD processors.
-AMD Pstate Driver Operation Modes
-=================================
+``amd-pstate`` Driver Operation Modes
+======================================
``amd_pstate`` CPPC has 3 operation modes: autonomous (active) mode,
non-autonomous (passive) mode and guided autonomous (guided) mode.
@@ -353,6 +380,48 @@ is activated. In this mode, driver requests minimum and maximum performance
level and the platform autonomously selects a performance level in this range
and appropriate to the current workload.
+``amd-pstate`` Preferred Core
+=================================
+
+The core frequency is subjected to the process variation in semiconductors.
+Not all cores are able to reach the maximum frequency respecting the
+infrastructure limits. Consequently, AMD has redefined the concept of
+maximum frequency of a part. This means that a fraction of cores can reach
+maximum frequency. To find the best process scheduling policy for a given
+scenario, OS needs to know the core ordering informed by the platform through
+highest performance capability register of the CPPC interface.
+
+``amd-pstate`` preferred core enables the scheduler to prefer scheduling on
+cores that can achieve a higher frequency with lower voltage. The preferred
+core rankings can dynamically change based on the workload, platform conditions,
+thermals and ageing.
+
+The priority metric will be initialized by the ``amd-pstate`` driver. The ``amd-pstate``
+driver will also determine whether or not ``amd-pstate`` preferred core is
+supported by the platform.
+
+``amd-pstate`` driver will provide an initial core ordering when the system boots.
+The platform uses the CPPC interfaces to communicate the core ranking to the
+operating system and scheduler to make sure that OS is choosing the cores
+with highest performance firstly for scheduling the process. When ``amd-pstate``
+driver receives a message with the highest performance change, it will
+update the core ranking and set the cpu's priority.
+
+``amd-pstate`` Preferred Core Switch
+=====================================
+Kernel Parameters
+-----------------
+
+``amd-pstate`` peferred core`` has two states: enable and disable.
+Enable/disable states can be chosen by different kernel parameters.
+Default enable ``amd-pstate`` preferred core.
+
+``amd_prefcore=disable``
+
+For systems that support ``amd-pstate`` preferred core, the core rankings will
+always be advertised by the platform. But OS can choose to ignore that via the
+kernel parameter ``amd_prefcore=disable``.
+
User Space Interface in ``sysfs`` - General
===========================================
@@ -361,10 +430,10 @@ Global Attributes
``amd-pstate`` exposes several global attributes (files) in ``sysfs`` to
control its functionality at the system level. They are located in the
-``/sys/devices/system/cpu/amd-pstate/`` directory and affect all CPUs.
+``/sys/devices/system/cpu/amd_pstate/`` directory and affect all CPUs.
``status``
- Operation mode of the driver: "active", "passive" or "disable".
+ Operation mode of the driver: "active", "passive", "guided" or "disable".
"active"
The driver is functional and in the ``active mode``
@@ -385,6 +454,19 @@ control its functionality at the system level. They are located in the
to the operation mode represented by that string - or to be
unregistered in the "disable" case.
+``prefcore``
+ Preferred core state of the driver: "enabled" or "disabled".
+
+ "enabled"
+ Enable the ``amd-pstate`` preferred core.
+
+ "disabled"
+ Disable the ``amd-pstate`` preferred core
+
+
+ This attribute is read-only to check the state of preferred core set
+ by the kernel parameter.
+
``cpupower`` tool support for ``amd-pstate``
===============================================
diff --git a/Documentation/admin-guide/pm/cpufreq.rst b/Documentation/admin-guide/pm/cpufreq.rst
index 6adb7988e0eb..738d7b4dc33a 100644
--- a/Documentation/admin-guide/pm/cpufreq.rst
+++ b/Documentation/admin-guide/pm/cpufreq.rst
@@ -231,7 +231,7 @@ are the following:
present).
The existence of the limit may be a result of some (often unintentional)
- BIOS settings, restrictions coming from a service processor or another
+ BIOS settings, restrictions coming from a service processor or other
BIOS/HW-based mechanisms.
This does not cover ACPI thermal limitations which can be discovered
@@ -248,6 +248,20 @@ are the following:
If that frequency cannot be determined, this attribute should not
be present.
+``cpuinfo_avg_freq``
+ An average frequency (in KHz) of all CPUs belonging to a given policy,
+ derived from a hardware provided feedback and reported on a time frame
+ spanning at most few milliseconds.
+
+ This is expected to be based on the frequency the hardware actually runs
+ at and, as such, might require specialised hardware support (such as AMU
+ extension on ARM). If one cannot be determined, this attribute should
+ not be present.
+
+ Note that failed attempt to retrieve current frequency for a given
+ CPU(s) will result in an appropriate error, i.e.: EAGAIN for CPU that
+ remains idle (raised on ARM).
+
``cpuinfo_max_freq``
Maximum possible operating frequency the CPUs belonging to this policy
can run at (in kHz).
@@ -260,13 +274,13 @@ are the following:
The time it takes to switch the CPUs belonging to this policy from one
P-state to another, in nanoseconds.
- If unknown or if known to be so high that the scaling driver does not
- work with the `ondemand`_ governor, -1 (:c:macro:`CPUFREQ_ETERNAL`)
- will be returned by reads from this attribute.
-
``related_cpus``
List of all (online and offline) CPUs belonging to this policy.
+``scaling_available_frequencies``
+ List of available frequencies of the CPUs belonging to this policy
+ (in kHz).
+
``scaling_available_governors``
List of ``CPUFreq`` scaling governors present in the kernel that can
be attached to this policy or (if the |intel_pstate| scaling driver is
@@ -289,7 +303,8 @@ are the following:
Some architectures (e.g. ``x86``) may attempt to provide information
more precisely reflecting the current CPU frequency through this
attribute, but that still may not be the exact current CPU frequency as
- seen by the hardware at the moment.
+ seen by the hardware at the moment. This behavior though, is only
+ available via c:macro:``CPUFREQ_ARCH_CUR_FREQ`` option.
``scaling_driver``
The scaling driver currently in use.
@@ -379,7 +394,9 @@ policy limits change after that.
This governor does not do anything by itself. Instead, it allows user space
to set the CPU frequency for the policy it is attached to by writing to the
-``scaling_setspeed`` attribute of that policy.
+``scaling_setspeed`` attribute of that policy. Though the intention may be to
+set an exact frequency for the policy, the actual frequency may vary depending
+on hardware coordination, thermal and power limits, and other factors.
``schedutil``
-------------
@@ -421,8 +438,8 @@ This governor exposes only one tunable:
``rate_limit_us``
Minimum time (in microseconds) that has to pass between two consecutive
- runs of governor computations (default: 1000 times the scaling driver's
- transition latency).
+ runs of governor computations (default: 1.5 times the scaling driver's
+ transition latency or the maximum 2ms).
The purpose of this tunable is to reduce the scheduler context overhead
of the governor which might be excessive without it.
@@ -470,17 +487,17 @@ This governor exposes the following tunables:
This is how often the governor's worker routine should run, in
microseconds.
- Typically, it is set to values of the order of 10000 (10 ms). Its
- default value is equal to the value of ``cpuinfo_transition_latency``
- for each policy this governor is attached to (but since the unit here
- is greater by 1000, this means that the time represented by
- ``sampling_rate`` is 1000 times greater than the transition latency by
- default).
+ Typically, it is set to values of the order of 2000 (2 ms). Its
+ default value is to add a 50% breathing room
+ to ``cpuinfo_transition_latency`` on each policy this governor is
+ attached to. The minimum is typically the length of two scheduler
+ ticks.
If this tunable is per-policy, the following shell command sets the time
- represented by it to be 750 times as high as the transition latency::
+ represented by it to be 1.5 times as high as the transition latency
+ (the default)::
- # echo `$(($(cat cpuinfo_transition_latency) * 750 / 1000)) > ondemand/sampling_rate
+ # echo `$(($(cat cpuinfo_transition_latency) * 3 / 2))` > ondemand/sampling_rate
``up_threshold``
If the estimated CPU load is above this value (in percent), the governor
diff --git a/Documentation/admin-guide/pm/cpuidle.rst b/Documentation/admin-guide/pm/cpuidle.rst
index 19754beb5a4e..be4c1120e3f0 100644
--- a/Documentation/admin-guide/pm/cpuidle.rst
+++ b/Documentation/admin-guide/pm/cpuidle.rst
@@ -269,61 +269,56 @@ Namely, when invoked to select an idle state for a CPU (i.e. an idle state that
the CPU will ask the processor hardware to enter), it attempts to predict the
idle duration and uses the predicted value for idle state selection.
-It first obtains the time until the closest timer event with the assumption
-that the scheduler tick will be stopped. That time, referred to as the *sleep
-length* in what follows, is the upper bound on the time before the next CPU
-wakeup. It is used to determine the sleep length range, which in turn is needed
-to get the sleep length correction factor.
-
-The ``menu`` governor maintains two arrays of sleep length correction factors.
-One of them is used when tasks previously running on the given CPU are waiting
-for some I/O operations to complete and the other one is used when that is not
-the case. Each array contains several correction factor values that correspond
-to different sleep length ranges organized so that each range represented in the
-array is approximately 10 times wider than the previous one.
-
-The correction factor for the given sleep length range (determined before
-selecting the idle state for the CPU) is updated after the CPU has been woken
-up and the closer the sleep length is to the observed idle duration, the closer
-to 1 the correction factor becomes (it must fall between 0 and 1 inclusive).
-The sleep length is multiplied by the correction factor for the range that it
-falls into to obtain the first approximation of the predicted idle duration.
-
-Next, the governor uses a simple pattern recognition algorithm to refine its
+It first uses a simple pattern recognition algorithm to obtain a preliminary
idle duration prediction. Namely, it saves the last 8 observed idle duration
values and, when predicting the idle duration next time, it computes the average
and variance of them. If the variance is small (smaller than 400 square
milliseconds) or it is small relative to the average (the average is greater
that 6 times the standard deviation), the average is regarded as the "typical
-interval" value. Otherwise, the longest of the saved observed idle duration
+interval" value. Otherwise, either the longest or the shortest (depending on
+which one is farther from the average) of the saved observed idle duration
values is discarded and the computation is repeated for the remaining ones.
+
Again, if the variance of them is small (in the above sense), the average is
taken as the "typical interval" value and so on, until either the "typical
-interval" is determined or too many data points are disregarded, in which case
-the "typical interval" is assumed to equal "infinity" (the maximum unsigned
-integer value). The "typical interval" computed this way is compared with the
-sleep length multiplied by the correction factor and the minimum of the two is
-taken as the predicted idle duration.
-
-Then, the governor computes an extra latency limit to help "interactive"
-workloads. It uses the observation that if the exit latency of the selected
-idle state is comparable with the predicted idle duration, the total time spent
-in that state probably will be very short and the amount of energy to save by
-entering it will be relatively small, so likely it is better to avoid the
-overhead related to entering that state and exiting it. Thus selecting a
-shallower state is likely to be a better option then. The first approximation
-of the extra latency limit is the predicted idle duration itself which
-additionally is divided by a value depending on the number of tasks that
-previously ran on the given CPU and now they are waiting for I/O operations to
-complete. The result of that division is compared with the latency limit coming
-from the power management quality of service, or `PM QoS <cpu-pm-qos_>`_,
-framework and the minimum of the two is taken as the limit for the idle states'
-exit latency.
+interval" is determined or too many data points are disregarded. In the latter
+case, if the size of the set of data points still under consideration is
+sufficiently large, the next idle duration is not likely to be above the largest
+idle duration value still in that set, so that value is taken as the predicted
+next idle duration. Finally, if the set of data points still under
+consideration is too small, no prediction is made.
+
+If the preliminary prediction of the next idle duration computed this way is
+long enough, the governor obtains the time until the closest timer event with
+the assumption that the scheduler tick will be stopped. That time, referred to
+as the *sleep length* in what follows, is the upper bound on the time before the
+next CPU wakeup. It is used to determine the sleep length range, which in turn
+is needed to get the sleep length correction factor.
+
+The ``menu`` governor maintains an array containing several correction factor
+values that correspond to different sleep length ranges organized so that each
+range represented in the array is approximately 10 times wider than the previous
+one.
+
+The correction factor for the given sleep length range (determined before
+selecting the idle state for the CPU) is updated after the CPU has been woken
+up and the closer the sleep length is to the observed idle duration, the closer
+to 1 the correction factor becomes (it must fall between 0 and 1 inclusive).
+The sleep length is multiplied by the correction factor for the range that it
+falls into to obtain an approximation of the predicted idle duration that is
+compared to the "typical interval" determined previously and the minimum of
+the two is taken as the final idle duration prediction.
+
+If the "typical interval" value is small, which means that the CPU is likely
+to be woken up soon enough, the sleep length computation is skipped as it may
+be costly and the idle duration is simply predicted to equal the "typical
+interval" value.
Now, the governor is ready to walk the list of idle states and choose one of
them. For this purpose, it compares the target residency of each state with
-the predicted idle duration and the exit latency of it with the computed latency
-limit. It selects the state with the target residency closest to the predicted
+the predicted idle duration and the exit latency of it with the with the latency
+limit coming from the power management quality of service, or `PM QoS <cpu-pm-qos_>`_,
+framework. It selects the state with the target residency closest to the predicted
idle duration, but still below it, and exit latency that does not exceed the
limit.
@@ -585,6 +580,15 @@ the given CPU as the upper limit for the exit latency of the idle states that
they are allowed to select for that CPU. They should never select any idle
states with exit latency beyond that limit.
+While the above CPU QoS constraints apply to CPU idle time management, user
+space may also request a CPU system wakeup latency QoS limit, via the
+`cpu_wakeup_latency` file. This QoS constraint is respected when selecting a
+suitable idle state for the CPUs, while entering the system-wide suspend-to-idle
+sleep state, but also to the regular CPU idle time management.
+
+Note that, the management of the `cpu_wakeup_latency` file works according to
+the 'cpu_dma_latency' file from user space point of view. Moreover, the unit
+is also microseconds.
Idle States Control Via Kernel Command Line
===========================================
diff --git a/Documentation/admin-guide/pm/intel_idle.rst b/Documentation/admin-guide/pm/intel_idle.rst
index b799a43da62e..ed6f055d4b14 100644
--- a/Documentation/admin-guide/pm/intel_idle.rst
+++ b/Documentation/admin-guide/pm/intel_idle.rst
@@ -38,6 +38,27 @@ instruction at all.
only way to pass early-configuration-time parameters to it is via the kernel
command line.
+Sysfs Interface
+===============
+
+The ``intel_idle`` driver exposes the following ``sysfs`` attributes in
+``/sys/devices/system/cpu/cpuidle/``:
+
+``intel_c1_demotion``
+ Enable or disable C1 demotion for all CPUs in the system. This file is
+ only exposed on platforms that support the C1 demotion feature and where
+ it was tested. Value 0 means that C1 demotion is disabled, value 1 means
+ that it is enabled. Write 0 or 1 to disable or enable C1 demotion for
+ all CPUs.
+
+ The C1 demotion feature involves the platform firmware demoting deep
+ C-state requests from the OS (e.g., C6 requests) to C1. The idea is that
+ firmware monitors CPU wake-up rate, and if it is higher than a
+ platform-specific threshold, the firmware demotes deep C-state requests
+ to C1. For example, Linux requests C6, but firmware noticed too many
+ wake-ups per second, and it keeps the CPU in C1. When the CPU stays in
+ C1 long enough, the platform promotes it back to C6. This may improve
+ some workloads' performance, but it may also increase power consumption.
.. _intel-idle-enumeration-of-states:
@@ -170,7 +191,7 @@ and ``idle=nomwait``. If any of them is present in the kernel command line, the
``MWAIT`` instruction is not allowed to be used, so the initialization of
``intel_idle`` will fail.
-Apart from that there are four module parameters recognized by ``intel_idle``
+Apart from that there are five module parameters recognized by ``intel_idle``
itself that can be set via the kernel command line (they cannot be updated via
sysfs, so that is the only way to change their values).
@@ -192,11 +213,19 @@ even if they have been enumerated (see :ref:`cpu-pm-qos` in
Documentation/admin-guide/pm/cpuidle.rst).
Setting ``max_cstate`` to 0 causes the ``intel_idle`` initialization to fail.
-The ``no_acpi`` and ``use_acpi`` module parameters (recognized by ``intel_idle``
-if the kernel has been configured with ACPI support) can be set to make the
-driver ignore the system's ACPI tables entirely or use them for all of the
-recognized processor models, respectively (they both are unset by default and
-``use_acpi`` has no effect if ``no_acpi`` is set).
+The ``no_acpi``, ``use_acpi`` and ``no_native`` module parameters are
+recognized by ``intel_idle`` if the kernel has been configured with ACPI
+support. In the case that ACPI is not configured these flags have no impact
+on functionality.
+
+``no_acpi`` - Do not use ACPI at all. Only native mode is available, no
+ACPI mode.
+
+``use_acpi`` - No-op in ACPI mode, the driver will consult ACPI tables for
+C-states on/off status in native mode.
+
+``no_native`` - Work only in ACPI mode, no native mode available (ignore
+all custom tables).
The value of the ``states_off`` module parameter (0 by default) represents a
list of idle states to be disabled by default in the form of a bitmask.
@@ -216,6 +245,21 @@ are ignored).
The idle states disabled this way can be enabled (on a per-CPU basis) from user
space via ``sysfs``.
+The ``ibrs_off`` module parameter is a boolean flag (defaults to
+false). If set, it is used to control if IBRS (Indirect Branch Restricted
+Speculation) should be turned off when the CPU enters an idle state.
+This flag does not affect CPUs that use Enhanced IBRS which can remain
+on with little performance impact.
+
+For some CPUs, IBRS will be selected as mitigation for Spectre v2 and Retbleed
+security vulnerabilities by default. Leaving the IBRS mode on while idling may
+have a performance impact on its sibling CPU. The IBRS mode will be turned off
+by default when the CPU enters into a deep idle state, but not in some
+shallower ones. Setting the ``ibrs_off`` module parameter will force the IBRS
+mode to off when the CPU is in any one of the available idle states. This may
+help performance of a sibling CPU at the expense of a slightly higher wakeup
+latency for the idle CPU.
+
.. _intel-idle-core-and-package-idle-states:
diff --git a/Documentation/admin-guide/pm/intel_pstate.rst b/Documentation/admin-guide/pm/intel_pstate.rst
index bf13ad25a32f..fde967b0c2e0 100644
--- a/Documentation/admin-guide/pm/intel_pstate.rst
+++ b/Documentation/admin-guide/pm/intel_pstate.rst
@@ -48,8 +48,9 @@ only way to pass early-configuration-time parameters to it is via the kernel
command line. However, its configuration can be adjusted via ``sysfs`` to a
great extent. In some configurations it even is possible to unregister it via
``sysfs`` which allows another ``CPUFreq`` scaling driver to be loaded and
-registered (see `below <status_attr_>`_).
+registered (see :ref:`below <status_attr>`).
+.. _operation_modes:
Operation Modes
===============
@@ -62,6 +63,8 @@ a certain performance scaling algorithm. Which of them will be in effect
depends on what kernel command line options are used and on the capabilities of
the processor.
+.. _active_mode:
+
Active Mode
-----------
@@ -94,6 +97,8 @@ Which of the P-state selection algorithms is used by default depends on the
Namely, if that option is set, the ``performance`` algorithm will be used by
default, and the other one will be used by default if it is not set.
+.. _active_mode_hwp:
+
Active Mode With HWP
~~~~~~~~~~~~~~~~~~~~
@@ -123,7 +128,7 @@ Energy-Performance Bias (EPB) knob (otherwise), which means that the processor's
internal P-state selection logic is expected to focus entirely on performance.
This will override the EPP/EPB setting coming from the ``sysfs`` interface
-(see `Energy vs Performance Hints`_ below). Moreover, any attempts to change
+(see :ref:`energy_performance_hints` below). Moreover, any attempts to change
the EPP/EPB to a value different from 0 ("performance") via ``sysfs`` in this
configuration will be rejected.
@@ -192,6 +197,8 @@ This is the default P-state selection algorithm if the
:c:macro:`CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE` kernel configuration option
is not set.
+.. _passive_mode:
+
Passive Mode
------------
@@ -289,12 +296,12 @@ Unlike ``_PSS`` objects in the ACPI tables, ``intel_pstate`` always exposes
the entire range of available P-states, including the whole turbo range, to the
``CPUFreq`` core and (in the passive mode) to generic scaling governors. This
generally causes turbo P-states to be set more often when ``intel_pstate`` is
-used relative to ACPI-based CPU performance scaling (see `below <acpi-cpufreq_>`_
-for more information).
+used relative to ACPI-based CPU performance scaling (see
+:ref:`below <acpi-cpufreq>` for more information).
Moreover, since ``intel_pstate`` always knows what the real turbo threshold is
(even if the Configurable TDP feature is enabled in the processor), its
-``no_turbo`` attribute in ``sysfs`` (described `below <no_turbo_attr_>`_) should
+``no_turbo`` attribute in ``sysfs`` (described :ref:`below <no_turbo_attr>`) should
work as expected in all cases (that is, if set to disable turbo P-states, it
always should prevent ``intel_pstate`` from using them).
@@ -307,12 +314,12 @@ pieces of information on it to be known, including:
* The minimum supported P-state.
- * The maximum supported `non-turbo P-state <turbo_>`_.
+ * The maximum supported :ref:`non-turbo P-state <turbo>`.
* Whether or not turbo P-states are supported at all.
- * The maximum supported `one-core turbo P-state <turbo_>`_ (if turbo P-states
- are supported).
+ * The maximum supported :ref:`one-core turbo P-state <turbo>` (if turbo
+ P-states are supported).
* The scaling formula to translate the driver's internal representation
of P-states into frequencies and the other way around.
@@ -329,9 +336,111 @@ information listed above is the same for all of the processors supporting the
HWP feature, which is why ``intel_pstate`` works with all of them.]
+Support for Hybrid Processors
+=============================
+
+Some processors supported by ``intel_pstate`` contain two or more types of CPU
+cores differing by the maximum turbo P-state, performance vs power characteristics,
+cache sizes, and possibly other properties. They are commonly referred to as
+hybrid processors. To support them, ``intel_pstate`` requires HWP to be enabled
+and it assumes the HWP performance units to be the same for all CPUs in the
+system, so a given HWP performance level always represents approximately the
+same physical performance regardless of the core (CPU) type.
+
+Hybrid Processors with SMT
+--------------------------
+
+On systems where SMT (Simultaneous Multithreading), also referred to as
+HyperThreading (HT) in the context of Intel processors, is enabled on at least
+one core, ``intel_pstate`` assigns performance-based priorities to CPUs. Namely,
+the priority of a given CPU reflects its highest HWP performance level which
+causes the CPU scheduler to generally prefer more performant CPUs, so the less
+performant CPUs are used when the other ones are fully loaded. However, SMT
+siblings (that is, logical CPUs sharing one physical core) are treated in a
+special way such that if one of them is in use, the effective priority of the
+other ones is lowered below the priorities of the CPUs located in the other
+physical cores.
+
+This approach maximizes performance in the majority of cases, but unfortunately
+it also leads to excessive energy usage in some important scenarios, like video
+playback, which is not generally desirable. While there is no other viable
+choice with SMT enabled because the effective capacity and utilization of SMT
+siblings are hard to determine, hybrid processors without SMT can be handled in
+more energy-efficient ways.
+
+.. _CAS:
+
+Capacity-Aware Scheduling Support
+---------------------------------
+
+The capacity-aware scheduling (CAS) support in the CPU scheduler is enabled by
+``intel_pstate`` by default on hybrid processors without SMT. CAS generally
+causes the scheduler to put tasks on a CPU so long as there is a sufficient
+amount of spare capacity on it, and if the utilization of a given task is too
+high for it, the task will need to go somewhere else.
+
+Since CAS takes CPU capacities into account, it does not require CPU
+prioritization and it allows tasks to be distributed more symmetrically among
+the more performant and less performant CPUs. Once placed on a CPU with enough
+capacity to accommodate it, a task may just continue to run there regardless of
+whether or not the other CPUs are fully loaded, so on average CAS reduces the
+utilization of the more performant CPUs which causes the energy usage to be more
+balanced because the more performant CPUs are generally less energy-efficient
+than the less performant ones.
+
+In order to use CAS, the scheduler needs to know the capacity of each CPU in
+the system and it needs to be able to compute scale-invariant utilization of
+CPUs, so ``intel_pstate`` provides it with the requisite information.
+
+First of all, the capacity of each CPU is represented by the ratio of its highest
+HWP performance level, multiplied by 1024, to the highest HWP performance level
+of the most performant CPU in the system, which works because the HWP performance
+units are the same for all CPUs. Second, the frequency-invariance computations,
+carried out by the scheduler to always express CPU utilization in the same units
+regardless of the frequency it is currently running at, are adjusted to take the
+CPU capacity into account. All of this happens when ``intel_pstate`` has
+registered itself with the ``CPUFreq`` core and it has figured out that it is
+running on a hybrid processor without SMT.
+
+Energy-Aware Scheduling Support
+-------------------------------
+
+If ``CONFIG_ENERGY_MODEL`` has been set during kernel configuration and
+``intel_pstate`` runs on a hybrid processor without SMT, in addition to enabling
+:ref:`CAS` it registers an Energy Model for the processor. This allows the
+Energy-Aware Scheduling (EAS) support to be enabled in the CPU scheduler if
+``schedutil`` is used as the ``CPUFreq`` governor which requires ``intel_pstate``
+to operate in the :ref:`passive mode <passive_mode>`.
+
+The Energy Model registered by ``intel_pstate`` is artificial (that is, it is
+based on abstract cost values and it does not include any real power numbers)
+and it is relatively simple to avoid unnecessary computations in the scheduler.
+There is a performance domain in it for every CPU in the system and the cost
+values for these performance domains have been chosen so that running a task on
+a less performant (small) CPU appears to be always cheaper than running that
+task on a more performant (big) CPU. However, for two CPUs of the same type,
+the cost difference depends on their current utilization, and the CPU whose
+current utilization is higher generally appears to be a more expensive
+destination for a given task. This helps to balance the load among CPUs of the
+same type.
+
+Since EAS works on top of CAS, high-utilization tasks are always migrated to
+CPUs with enough capacity to accommodate them, but thanks to EAS, low-utilization
+tasks tend to be placed on the CPUs that look less expensive to the scheduler.
+Effectively, this causes the less performant and less loaded CPUs to be
+preferred as long as they have enough spare capacity to run the given task
+which generally leads to reduced energy usage.
+
+The Energy Model created by ``intel_pstate`` can be inspected by looking at
+the ``energy_model`` directory in ``debugfs`` (typlically mounted on
+``/sys/kernel/debug/``).
+
+
User Space Interface in ``sysfs``
=================================
+.. _global_attributes:
+
Global Attributes
-----------------
@@ -344,8 +453,8 @@ argument is passed to the kernel in the command line.
``max_perf_pct``
Maximum P-state the driver is allowed to set in percent of the
- maximum supported performance level (the highest supported `turbo
- P-state <turbo_>`_).
+ maximum supported performance level (the highest supported :ref:`turbo
+ P-state <turbo>`).
This attribute will not be exposed if the
``intel_pstate=per_cpu_perf_limits`` argument is present in the kernel
@@ -353,8 +462,8 @@ argument is passed to the kernel in the command line.
``min_perf_pct``
Minimum P-state the driver is allowed to set in percent of the
- maximum supported performance level (the highest supported `turbo
- P-state <turbo_>`_).
+ maximum supported performance level (the highest supported :ref:`turbo
+ P-state <turbo>`).
This attribute will not be exposed if the
``intel_pstate=per_cpu_perf_limits`` argument is present in the kernel
@@ -363,18 +472,18 @@ argument is passed to the kernel in the command line.
``num_pstates``
Number of P-states supported by the processor (between 0 and 255
inclusive) including both turbo and non-turbo P-states (see
- `Turbo P-states Support`_).
+ :ref:`turbo`).
This attribute is present only if the value exposed by it is the same
for all of the CPUs in the system.
The value of this attribute is not affected by the ``no_turbo``
- setting described `below <no_turbo_attr_>`_.
+ setting described :ref:`below <no_turbo_attr>`.
This attribute is read-only.
``turbo_pct``
- Ratio of the `turbo range <turbo_>`_ size to the size of the entire
+ Ratio of the :ref:`turbo range <turbo>` size to the size of the entire
range of supported P-states, in percent.
This attribute is present only if the value exposed by it is the same
@@ -386,7 +495,7 @@ argument is passed to the kernel in the command line.
``no_turbo``
If set (equal to 1), the driver is not allowed to set any turbo P-states
- (see `Turbo P-states Support`_). If unset (equal to 0, which is the
+ (see :ref:`turbo`). If unset (equal to 0, which is the
default), turbo P-states can be set by the driver.
[Note that ``intel_pstate`` does not support the general ``boost``
attribute (supported by some other scaling drivers) which is replaced
@@ -395,11 +504,11 @@ argument is passed to the kernel in the command line.
This attribute does not affect the maximum supported frequency value
supplied to the ``CPUFreq`` core and exposed via the policy interface,
but it affects the maximum possible value of per-policy P-state limits
- (see `Interpretation of Policy Attributes`_ below for details).
+ (see :ref:`policy_attributes_interpretation` below for details).
``hwp_dynamic_boost``
This attribute is only present if ``intel_pstate`` works in the
- `active mode with the HWP feature enabled <Active Mode With HWP_>`_ in
+ :ref:`active mode with the HWP feature enabled <active_mode_hwp>` in
the processor. If set (equal to 1), it causes the minimum P-state limit
to be increased dynamically for a short time whenever a task previously
waiting on I/O is selected to run on a given logical CPU (the purpose
@@ -414,12 +523,12 @@ argument is passed to the kernel in the command line.
Operation mode of the driver: "active", "passive" or "off".
"active"
- The driver is functional and in the `active mode
- <Active Mode_>`_.
+ The driver is functional and in the :ref:`active mode
+ <active_mode>`.
"passive"
- The driver is functional and in the `passive mode
- <Passive Mode_>`_.
+ The driver is functional and in the :ref:`passive mode
+ <passive_mode>`.
"off"
The driver is not functional (it is not registered as a scaling
@@ -447,13 +556,15 @@ argument is passed to the kernel in the command line.
attribute to "1" enables the energy-efficiency optimizations and setting
to "0" disables them.
+.. _policy_attributes_interpretation:
+
Interpretation of Policy Attributes
-----------------------------------
The interpretation of some ``CPUFreq`` policy attributes described in
Documentation/admin-guide/pm/cpufreq.rst is special with ``intel_pstate``
as the current scaling driver and it generally depends on the driver's
-`operation mode <Operation Modes_>`_.
+:ref:`operation mode <operation_modes>`.
First of all, the values of the ``cpuinfo_max_freq``, ``cpuinfo_min_freq`` and
``scaling_cur_freq`` attributes are produced by applying a processor-specific
@@ -462,9 +573,10 @@ Also, the values of the ``scaling_max_freq`` and ``scaling_min_freq``
attributes are capped by the frequency corresponding to the maximum P-state that
the driver is allowed to set.
-If the ``no_turbo`` `global attribute <no_turbo_attr_>`_ is set, the driver is
-not allowed to use turbo P-states, so the maximum value of ``scaling_max_freq``
-and ``scaling_min_freq`` is limited to the maximum non-turbo P-state frequency.
+If the ``no_turbo`` :ref:`global attribute <no_turbo_attr>` is set, the driver
+is not allowed to use turbo P-states, so the maximum value of
+``scaling_max_freq`` and ``scaling_min_freq`` is limited to the maximum
+non-turbo P-state frequency.
Accordingly, setting ``no_turbo`` causes ``scaling_max_freq`` and
``scaling_min_freq`` to go down to that value if they were above it before.
However, the old values of ``scaling_max_freq`` and ``scaling_min_freq`` will be
@@ -476,7 +588,7 @@ and ``scaling_min_freq`` corresponds to the maximum supported turbo P-state,
which also is the value of ``cpuinfo_max_freq`` in either case.
Next, the following policy attributes have special meaning if
-``intel_pstate`` works in the `active mode <Active Mode_>`_:
+``intel_pstate`` works in the :ref:`active mode <active_mode>`:
``scaling_available_governors``
List of P-state selection algorithms provided by ``intel_pstate``.
@@ -497,20 +609,22 @@ processor:
Shows the base frequency of the CPU. Any frequency above this will be
in the turbo frequency range.
-The meaning of these attributes in the `passive mode <Passive Mode_>`_ is the
+The meaning of these attributes in the :ref:`passive mode <passive_mode>` is the
same as for other scaling drivers.
Additionally, the value of the ``scaling_driver`` attribute for ``intel_pstate``
depends on the operation mode of the driver. Namely, it is either
-"intel_pstate" (in the `active mode <Active Mode_>`_) or "intel_cpufreq" (in the
-`passive mode <Passive Mode_>`_).
+"intel_pstate" (in the :ref:`active mode <active_mode>`) or "intel_cpufreq"
+(in the :ref:`passive mode <passive_mode>`).
+
+.. _pstate_limits_coordination:
Coordination of P-State Limits
------------------------------
``intel_pstate`` allows P-state limits to be set in two ways: with the help of
-the ``max_perf_pct`` and ``min_perf_pct`` `global attributes
-<Global Attributes_>`_ or via the ``scaling_max_freq`` and ``scaling_min_freq``
+the ``max_perf_pct`` and ``min_perf_pct`` :ref:`global attributes
+<global_attributes>` or via the ``scaling_max_freq`` and ``scaling_min_freq``
``CPUFreq`` policy attributes. The coordination between those limits is based
on the following rules, regardless of the current operation mode of the driver:
@@ -532,17 +646,18 @@ on the following rules, regardless of the current operation mode of the driver:
3. The global and per-policy limits can be set independently.
-In the `active mode with the HWP feature enabled <Active Mode With HWP_>`_, the
+In the :ref:`active mode with the HWP feature enabled <active_mode_hwp>`, the
resulting effective values are written into hardware registers whenever the
limits change in order to request its internal P-state selection logic to always
set P-states within these limits. Otherwise, the limits are taken into account
-by scaling governors (in the `passive mode <Passive Mode_>`_) and by the driver
-every time before setting a new P-state for a CPU.
+by scaling governors (in the :ref:`passive mode <passive_mode>`) and by the
+driver every time before setting a new P-state for a CPU.
Additionally, if the ``intel_pstate=per_cpu_perf_limits`` command line argument
is passed to the kernel, ``max_perf_pct`` and ``min_perf_pct`` are not exposed
at all and the only way to set the limits is by using the policy attributes.
+.. _energy_performance_hints:
Energy vs Performance Hints
---------------------------
@@ -602,9 +717,9 @@ output.
On those systems each ``_PSS`` object returns a list of P-states supported by
the corresponding CPU which basically is a subset of the P-states range that can
be used by ``intel_pstate`` on the same system, with one exception: the whole
-`turbo range <turbo_>`_ is represented by one item in it (the topmost one). By
-convention, the frequency returned by ``_PSS`` for that item is greater by 1 MHz
-than the frequency of the highest non-turbo P-state listed by it, but the
+:ref:`turbo range <turbo>` is represented by one item in it (the topmost one).
+By convention, the frequency returned by ``_PSS`` for that item is greater by
+1 MHz than the frequency of the highest non-turbo P-state listed by it, but the
corresponding P-state representation (following the hardware specification)
returned for it matches the maximum supported turbo P-state (or is the
special value 255 meaning essentially "go as high as you can get").
@@ -630,18 +745,18 @@ benefit from running at turbo frequencies will be given non-turbo P-states
instead.
One more issue related to that may appear on systems supporting the
-`Configurable TDP feature <turbo_>`_ allowing the platform firmware to set the
-turbo threshold. Namely, if that is not coordinated with the lists of P-states
-returned by ``_PSS`` properly, there may be more than one item corresponding to
-a turbo P-state in those lists and there may be a problem with avoiding the
-turbo range (if desirable or necessary). Usually, to avoid using turbo
-P-states overall, ``acpi-cpufreq`` simply avoids using the topmost state listed
-by ``_PSS``, but that is not sufficient when there are other turbo P-states in
-the list returned by it.
+:ref:`Configurable TDP feature <turbo>` allowing the platform firmware to set
+the turbo threshold. Namely, if that is not coordinated with the lists of
+P-states returned by ``_PSS`` properly, there may be more than one item
+corresponding to a turbo P-state in those lists and there may be a problem with
+avoiding the turbo range (if desirable or necessary). Usually, to avoid using
+turbo P-states overall, ``acpi-cpufreq`` simply avoids using the topmost state
+listed by ``_PSS``, but that is not sufficient when there are other turbo
+P-states in the list returned by it.
Apart from the above, ``acpi-cpufreq`` works like ``intel_pstate`` in the
-`passive mode <Passive Mode_>`_, except that the number of P-states it can set
-is limited to the ones listed by the ACPI ``_PSS`` objects.
+:ref:`passive mode <passive_mode>`, except that the number of P-states it can
+set is limited to the ones listed by the ACPI ``_PSS`` objects.
Kernel Command Line Options for ``intel_pstate``
@@ -656,11 +771,11 @@ of them have to be prepended with the ``intel_pstate=`` prefix.
processor is supported by it.
``active``
- Register ``intel_pstate`` in the `active mode <Active Mode_>`_ to start
- with.
+ Register ``intel_pstate`` in the :ref:`active mode <active_mode>` to
+ start with.
``passive``
- Register ``intel_pstate`` in the `passive mode <Passive Mode_>`_ to
+ Register ``intel_pstate`` in the :ref:`passive mode <passive_mode>` to
start with.
``force``
@@ -693,9 +808,12 @@ of them have to be prepended with the ``intel_pstate=`` prefix.
and this option has no effect.
``per_cpu_perf_limits``
- Use per-logical-CPU P-State limits (see `Coordination of P-state
- Limits`_ for details).
+ Use per-logical-CPU P-State limits (see
+ :ref:`pstate_limits_coordination` for details).
+``no_cas``
+ Do not enable :ref:`capacity-aware scheduling <CAS>` which is enabled
+ by default on hybrid systems without SMT.
Diagnostics and Tuning
======================
@@ -707,7 +825,7 @@ There are two static trace events that can be used for ``intel_pstate``
diagnostics. One of them is the ``cpu_frequency`` trace event generally used
by ``CPUFreq``, and the other one is the ``pstate_sample`` trace event specific
to ``intel_pstate``. Both of them are triggered by ``intel_pstate`` only if
-it works in the `active mode <Active Mode_>`_.
+it works in the :ref:`active mode <active_mode>`.
The following sequence of shell commands can be used to enable them and see
their output (if the kernel is generally configured to support event tracing)::
@@ -719,7 +837,7 @@ their output (if the kernel is generally configured to support event tracing)::
gnome-terminal--4510 [001] ..s. 1177.680733: pstate_sample: core_busy=107 scaled=94 from=26 to=26 mperf=1143818 aperf=1230607 tsc=29838618 freq=2474476
cat-5235 [002] ..s. 1177.681723: cpu_frequency: state=2900000 cpu_id=2
-If ``intel_pstate`` works in the `passive mode <Passive Mode_>`_, the
+If ``intel_pstate`` works in the :ref:`passive mode <passive_mode>`, the
``cpu_frequency`` trace event will be triggered either by the ``schedutil``
scaling governor (for the policies it is attached to), or by the ``CPUFreq``
core (for the policies with other scaling governors).
diff --git a/Documentation/admin-guide/pm/intel_uncore_frequency_scaling.rst b/Documentation/admin-guide/pm/intel_uncore_frequency_scaling.rst
index 09169d935835..d367ba4d744a 100644
--- a/Documentation/admin-guide/pm/intel_uncore_frequency_scaling.rst
+++ b/Documentation/admin-guide/pm/intel_uncore_frequency_scaling.rst
@@ -5,7 +5,7 @@
Intel Uncore Frequency Scaling
==============================
-:Copyright: |copy| 2022 Intel Corporation
+:Copyright: |copy| 2022-2023 Intel Corporation
:Author: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
@@ -58,3 +58,127 @@ Each package_*_die_* contains the following attributes:
``current_freq_khz``
This attribute is used to get the current uncore frequency.
+
+SoCs with TPMI (Topology Aware Register and PM Capsule Interface)
+-----------------------------------------------------------------
+
+An SoC can contain multiple power domains with individual or collection
+of mesh partitions. This partition is called fabric cluster.
+
+Certain type of meshes will need to run at the same frequency, they will
+be placed in the same fabric cluster. Benefit of fabric cluster is that it
+offers a scalable mechanism to deal with partitioned fabrics in a SoC.
+
+The current sysfs interface supports controls at package and die level.
+This interface is not enough to support more granular control at
+fabric cluster level.
+
+SoCs with the support of TPMI (Topology Aware Register and PM Capsule
+Interface), can have multiple power domains. Each power domain can
+contain one or more fabric clusters.
+
+To represent controls at fabric cluster level in addition to the
+controls at package and die level (like systems without TPMI
+support), sysfs is enhanced. This granular interface is presented in the
+sysfs with directories names prefixed with "uncore". For example:
+uncore00, uncore01 etc.
+
+The scope of control is specified by attributes "package_id", "domain_id"
+and "fabric_cluster_id" in the directory.
+
+Attributes in each directory:
+
+``domain_id``
+ This attribute is used to get the power domain id of this instance.
+
+``die_id``
+ This attribute is used to get the Linux die id of this instance.
+ This attribute is only present for domains with core agents and
+ when the CPUID leaf 0x1f presents die ID.
+
+``fabric_cluster_id``
+ This attribute is used to get the fabric cluster id of this instance.
+
+``package_id``
+ This attribute is used to get the package id of this instance.
+
+``agent_types``
+ This attribute displays all the hardware agents present within the
+ domain. Each agent has the capability to control one or more hardware
+ subsystems, which include: core, cache, memory, and I/O.
+
+The other attributes are same as presented at package_*_die_* level.
+
+In most of current use cases, the "max_freq_khz" and "min_freq_khz"
+is updated at "package_*_die_*" level. This model will be still supported
+with the following approach:
+
+When user uses controls at "package_*_die_*" level, then every fabric
+cluster is affected in that package and die. For example: user changes
+"max_freq_khz" in the package_00_die_00, then "max_freq_khz" for uncore*
+directory with the same package id will be updated. In this case user can
+still update "max_freq_khz" at each uncore* level, which is more restrictive.
+Similarly, user can update "min_freq_khz" at "package_*_die_*" level
+to apply at each uncore* level.
+
+Support for "current_freq_khz" is available only at each fabric cluster
+level (i.e., in uncore* directory).
+
+Efficiency vs. Latency Tradeoff
+-------------------------------
+
+The Efficiency Latency Control (ELC) feature improves performance
+per watt. With this feature hardware power management algorithms
+optimize trade-off between latency and power consumption. For some
+latency sensitive workloads further tuning can be done by SW to
+get desired performance.
+
+The hardware monitors the average CPU utilization across all cores
+in a power domain at regular intervals and decides an uncore frequency.
+While this may result in the best performance per watt, workload may be
+expecting higher performance at the expense of power. Consider an
+application that intermittently wakes up to perform memory reads on an
+otherwise idle system. In such cases, if hardware lowers uncore
+frequency, then there may be delay in ramp up of frequency to meet
+target performance.
+
+The ELC control defines some parameters which can be changed from SW.
+If the average CPU utilization is below a user-defined threshold
+(elc_low_threshold_percent attribute below), the user-defined uncore
+floor frequency will be used (elc_floor_freq_khz attribute below)
+instead of hardware calculated minimum.
+
+Similarly in high load scenario where the CPU utilization goes above
+the high threshold value (elc_high_threshold_percent attribute below)
+instead of jumping to maximum uncore frequency, frequency is increased
+in 100MHz steps. This avoids consuming unnecessarily high power
+immediately with CPU utilization spikes.
+
+Attributes for efficiency latency control:
+
+``elc_floor_freq_khz``
+ This attribute is used to get/set the efficiency latency floor frequency.
+ If this variable is lower than the 'min_freq_khz', it is ignored by
+ the firmware.
+
+``elc_low_threshold_percent``
+ This attribute is used to get/set the efficiency latency control low
+ threshold. This attribute is in percentages of CPU utilization.
+
+``elc_high_threshold_percent``
+ This attribute is used to get/set the efficiency latency control high
+ threshold. This attribute is in percentages of CPU utilization.
+
+``elc_high_threshold_enable``
+ This attribute is used to enable/disable the efficiency latency control
+ high threshold. Write '1' to enable, '0' to disable.
+
+Example system configuration below, which does following:
+ * when CPU utilization is less than 10%: sets uncore frequency to 800MHz
+ * when CPU utilization is higher than 95%: increases uncore frequency in
+ 100MHz steps, until power limit is reached
+
+ elc_floor_freq_khz:800000
+ elc_high_threshold_percent:95
+ elc_high_threshold_enable:1
+ elc_low_threshold_percent:10
diff --git a/Documentation/admin-guide/pnp.rst b/Documentation/admin-guide/pnp.rst
index 3eda08191d13..24d80e3eb309 100644
--- a/Documentation/admin-guide/pnp.rst
+++ b/Documentation/admin-guide/pnp.rst
@@ -129,9 +129,6 @@ pnp_put_protocol
pnp_register_protocol
use this to register a new PnP protocol
-pnp_unregister_protocol
- use this function to remove a PnP protocol from the Plug and Play Layer
-
pnp_register_driver
adds a PnP driver to the Plug and Play Layer
diff --git a/Documentation/admin-guide/pstore-blk.rst b/Documentation/admin-guide/pstore-blk.rst
index 2d22ead9520e..1bb2a1c292aa 100644
--- a/Documentation/admin-guide/pstore-blk.rst
+++ b/Documentation/admin-guide/pstore-blk.rst
@@ -76,7 +76,7 @@ kmsg_size
~~~~~~~~~
The chunk size in KB for oops/panic front-end. It **MUST** be a multiple of 4.
-It's optional if you do not care oops/panic log.
+It's optional if you do not care about the oops/panic log.
There are multiple chunks for oops/panic front-end depending on the remaining
space except other pstore front-ends.
@@ -88,7 +88,7 @@ pmsg_size
~~~~~~~~~
The chunk size in KB for pmsg front-end. It **MUST** be a multiple of 4.
-It's optional if you do not care pmsg log.
+It's optional if you do not care about the pmsg log.
Unlike oops/panic front-end, there is only one chunk for pmsg front-end.
@@ -100,7 +100,7 @@ console_size
~~~~~~~~~~~~
The chunk size in KB for console front-end. It **MUST** be a multiple of 4.
-It's optional if you do not care console log.
+It's optional if you do not care about the console log.
Similar to pmsg front-end, there is only one chunk for console front-end.
@@ -111,7 +111,7 @@ ftrace_size
~~~~~~~~~~~
The chunk size in KB for ftrace front-end. It **MUST** be a multiple of 4.
-It's optional if you do not care console log.
+It's optional if you do not care about the ftrace log.
Similar to oops front-end, there are multiple chunks for ftrace front-end
depending on the count of cpu processors. Each chunk size is equal to
diff --git a/Documentation/admin-guide/quickly-build-trimmed-linux.rst b/Documentation/admin-guide/quickly-build-trimmed-linux.rst
index ff4f4cc8522b..cb4b78468a93 100644
--- a/Documentation/admin-guide/quickly-build-trimmed-linux.rst
+++ b/Documentation/admin-guide/quickly-build-trimmed-linux.rst
@@ -215,12 +215,14 @@ again.
reduce the compile time enormously, especially if you are running an
universal kernel from a commodity Linux distribution.
- There is a catch: the make target 'localmodconfig' will disable kernel
- features you have not directly or indirectly through some program utilized
- since you booted the system. You can reduce or nearly eliminate that risk by
- using tricks outlined in the reference section; for quick testing purposes
- that risk is often negligible, but it is an aspect you want to keep in mind
- in case your kernel behaves oddly.
+ There is a catch: 'localmodconfig' is likely to disable kernel features you
+ did not use since you booted your Linux -- like drivers for currently
+ disconnected peripherals or a virtualization software not haven't used yet.
+ You can reduce or nearly eliminate that risk with tricks the reference
+ section outlines; but when building a kernel just for quick testing purposes
+ it is often negligible if such features are missing. But you should keep that
+ aspect in mind when using a kernel built with this make target, as it might
+ be the reason why something you only use occasionally stopped working.
[:ref:`details<configuration>`]
@@ -271,6 +273,9 @@ again.
does nothing at all; in that case you have to manually install your kernel,
as outlined in the reference section.
+ If you are running an immutable Linux distribution, check its documentation
+ and the web to find out how to install your own kernel there.
+
[:ref:`details<install>`]
.. _another_sbs:
@@ -291,29 +296,29 @@ again.
version you care about, as git otherwise might retrieve the entire commit
history::
- git fetch --shallow-exclude=v6.1 origin
-
- If you modified the sources (for example by applying a patch), you now need
- to discard those modifications; that's because git otherwise will not be able
- to switch to the sources of another version due to potential conflicting
- changes::
-
- git reset --hard
+ git fetch --shallow-exclude=v6.0 origin
- Now checkout the version you are interested in, as explained above::
+ Now switch to the version you are interested in -- but be aware the command
+ used here will discard any modifications you performed, as they would
+ conflict with the sources you want to checkout::
- git checkout --detach origin/master
+ git checkout --force --detach origin/master
At this point you might want to patch the sources again or set/modify a build
- tag, as explained earlier; afterwards adjust the build configuration to the
- new codebase and build your next kernel::
+ tag, as explained earlier. Afterwards adjust the build configuration to the
+ new codebase using olddefconfig, which will now adjust the configuration file
+ you prepared earlier using localmodconfig (~/linux/.config) for your next
+ kernel::
# reminder: if you want to apply patches, do it at this point
# reminder: you might want to update your build tag at this point
make olddefconfig
+
+ Now build your kernel::
+
make -j $(nproc --all)
- Install the kernel as outlined above::
+ Afterwards install the kernel as outlined above::
command -v installkernel && sudo make modules_install install
@@ -342,7 +347,7 @@ again.
[:ref:`details<uninstall>`]
-.. _submit_improvements:
+.. _submit_improvements_qbtl:
Did you run into trouble following any of the above steps that is not cleared up
by the reference section below? Or do you have ideas how to improve the text?
@@ -584,11 +589,11 @@ versions and individual commits at hand at any time::
curl -L \
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/clone.bundle \
-o linux-stable.git.bundle
- git clone clone.bundle ~/linux/
+ git clone linux-stable.git.bundle ~/linux/
rm linux-stable.git.bundle
cd ~/linux/
- git remote set-url origin
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
+ git remote set-url origin \
+ https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
git fetch origin
git checkout --detach origin/master
@@ -728,7 +733,7 @@ can easily happen that your self-built kernel will lack modules for tasks you
did not perform before utilizing this make target. That's because those tasks
require kernel modules that are normally autoloaded when you perform that task
for the first time; if you didn't perform that task at least once before using
-localmodonfig, the latter will thus assume these modules are superfluous and
+localmodconfig, the latter will thus assume these modules are superfluous and
disable them.
You can try to avoid this by performing typical tasks that often will autoload
@@ -879,7 +884,7 @@ When a build error occurs, it might be caused by some aspect of your machine's
setup that often can be fixed quickly; other times though the problem lies in
the code and can only be fixed by a developer. A close examination of the
failure messages coupled with some research on the internet will often tell you
-which of the two it is. To perform such a investigation, restart the build
+which of the two it is. To perform such an investigation, restart the build
process like this::
make V=1
@@ -1065,7 +1070,7 @@ complicated, and harder to follow.
That being said: this of course is a balancing act. Hence, if you think an
additional use-case is worth describing, suggest it to the maintainers of this
-document, as :ref:`described above <submit_improvements>`.
+document, as :ref:`described above <submit_improvements_qbtl>`.
..
diff --git a/Documentation/admin-guide/ramoops.rst b/Documentation/admin-guide/ramoops.rst
index e9f85142182d..2eabef31220d 100644
--- a/Documentation/admin-guide/ramoops.rst
+++ b/Documentation/admin-guide/ramoops.rst
@@ -23,6 +23,8 @@ and type of the memory area are set using three variables:
* ``mem_size`` for the size. The memory size will be rounded down to a
power of two.
* ``mem_type`` to specify if the memory type (default is pgprot_writecombine).
+ * ``mem_name`` to specify a memory region defined by ``reserve_mem`` command
+ line parameter.
Typically the default value of ``mem_type=0`` should be used as that sets the pstore
mapping to pgprot_writecombine. Setting ``mem_type=1`` attempts to use
@@ -118,6 +120,17 @@ Setting the ramoops parameters can be done in several different manners:
return ret;
}
+ D. Using a region of memory reserved via ``reserve_mem`` command line
+ parameter. The address and size will be defined by the ``reserve_mem``
+ parameter. Note, that ``reserve_mem`` may not always allocate memory
+ in the same location, and cannot be relied upon. Testing will need
+ to be done, and it may not work on every machine, nor every kernel.
+ Consider this a "best effort" approach. The ``reserve_mem`` option
+ takes a size, alignment and name as arguments. The name is used
+ to map the memory to a label that can be retrieved by ramoops.
+
+ reserve_mem=2M:4096:oops ramoops.mem_name=oops
+
You can specify either RAM memory or peripheral devices' memory. However, when
specifying RAM, be sure to reserve the memory by issuing memblock_reserve()
very early in the architecture code, e.g.::
diff --git a/Documentation/admin-guide/ras.rst b/Documentation/admin-guide/ras.rst
deleted file mode 100644
index 8e03751d126d..000000000000
--- a/Documentation/admin-guide/ras.rst
+++ /dev/null
@@ -1,1219 +0,0 @@
-.. include:: <isonum.txt>
-
-============================================
-Reliability, Availability and Serviceability
-============================================
-
-RAS concepts
-************
-
-Reliability, Availability and Serviceability (RAS) is a concept used on
-servers meant to measure their robustness.
-
-Reliability
- is the probability that a system will produce correct outputs.
-
- * Generally measured as Mean Time Between Failures (MTBF)
- * Enhanced by features that help to avoid, detect and repair hardware faults
-
-Availability
- is the probability that a system is operational at a given time
-
- * Generally measured as a percentage of downtime per a period of time
- * Often uses mechanisms to detect and correct hardware faults in
- runtime;
-
-Serviceability (or maintainability)
- is the simplicity and speed with which a system can be repaired or
- maintained
-
- * Generally measured on Mean Time Between Repair (MTBR)
-
-Improving RAS
--------------
-
-In order to reduce systems downtime, a system should be capable of detecting
-hardware errors, and, when possible correcting them in runtime. It should
-also provide mechanisms to detect hardware degradation, in order to warn
-the system administrator to take the action of replacing a component before
-it causes data loss or system downtime.
-
-Among the monitoring measures, the most usual ones include:
-
-* CPU – detect errors at instruction execution and at L1/L2/L3 caches;
-* Memory – add error correction logic (ECC) to detect and correct errors;
-* I/O – add CRC checksums for transferred data;
-* Storage – RAID, journal file systems, checksums,
- Self-Monitoring, Analysis and Reporting Technology (SMART).
-
-By monitoring the number of occurrences of error detections, it is possible
-to identify if the probability of hardware errors is increasing, and, on such
-case, do a preventive maintenance to replace a degraded component while
-those errors are correctable.
-
-Types of errors
----------------
-
-Most mechanisms used on modern systems use technologies like Hamming
-Codes that allow error correction when the number of errors on a bit packet
-is below a threshold. If the number of errors is above, those mechanisms
-can indicate with a high degree of confidence that an error happened, but
-they can't correct.
-
-Also, sometimes an error occur on a component that it is not used. For
-example, a part of the memory that it is not currently allocated.
-
-That defines some categories of errors:
-
-* **Correctable Error (CE)** - the error detection mechanism detected and
- corrected the error. Such errors are usually not fatal, although some
- Kernel mechanisms allow the system administrator to consider them as fatal.
-
-* **Uncorrected Error (UE)** - the amount of errors happened above the error
- correction threshold, and the system was unable to auto-correct.
-
-* **Fatal Error** - when an UE error happens on a critical component of the
- system (for example, a piece of the Kernel got corrupted by an UE), the
- only reliable way to avoid data corruption is to hang or reboot the machine.
-
-* **Non-fatal Error** - when an UE error happens on an unused component,
- like a CPU in power down state or an unused memory bank, the system may
- still run, eventually replacing the affected hardware by a hot spare,
- if available.
-
- Also, when an error happens on a userspace process, it is also possible to
- kill such process and let userspace restart it.
-
-The mechanism for handling non-fatal errors is usually complex and may
-require the help of some userspace application, in order to apply the
-policy desired by the system administrator.
-
-Identifying a bad hardware component
-------------------------------------
-
-Just detecting a hardware flaw is usually not enough, as the system needs
-to pinpoint to the minimal replaceable unit (MRU) that should be exchanged
-to make the hardware reliable again.
-
-So, it requires not only error logging facilities, but also mechanisms that
-will translate the error message to the silkscreen or component label for
-the MRU.
-
-Typically, it is very complex for memory, as modern CPUs interlace memory
-from different memory modules, in order to provide a better performance. The
-DMI BIOS usually have a list of memory module labels, with can be obtained
-using the ``dmidecode`` tool. For example, on a desktop machine, it shows::
-
- Memory Device
- Total Width: 64 bits
- Data Width: 64 bits
- Size: 16384 MB
- Form Factor: SODIMM
- Set: None
- Locator: ChannelA-DIMM0
- Bank Locator: BANK 0
- Type: DDR4
- Type Detail: Synchronous
- Speed: 2133 MHz
- Rank: 2
- Configured Clock Speed: 2133 MHz
-
-On the above example, a DDR4 SO-DIMM memory module is located at the
-system's memory labeled as "BANK 0", as given by the *bank locator* field.
-Please notice that, on such system, the *total width* is equal to the
-*data width*. It means that such memory module doesn't have error
-detection/correction mechanisms.
-
-Unfortunately, not all systems use the same field to specify the memory
-bank. On this example, from an older server, ``dmidecode`` shows::
-
- Memory Device
- Array Handle: 0x1000
- Error Information Handle: Not Provided
- Total Width: 72 bits
- Data Width: 64 bits
- Size: 8192 MB
- Form Factor: DIMM
- Set: 1
- Locator: DIMM_A1
- Bank Locator: Not Specified
- Type: DDR3
- Type Detail: Synchronous Registered (Buffered)
- Speed: 1600 MHz
- Rank: 2
- Configured Clock Speed: 1600 MHz
-
-There, the DDR3 RDIMM memory module is located at the system's memory labeled
-as "DIMM_A1", as given by the *locator* field. Please notice that this
-memory module has 64 bits of *data width* and 72 bits of *total width*. So,
-it has 8 extra bits to be used by error detection and correction mechanisms.
-Such kind of memory is called Error-correcting code memory (ECC memory).
-
-To make things even worse, it is not uncommon that systems with different
-labels on their system's board to use exactly the same BIOS, meaning that
-the labels provided by the BIOS won't match the real ones.
-
-ECC memory
-----------
-
-As mentioned in the previous section, ECC memory has extra bits to be
-used for error correction. In the above example, a memory module has
-64 bits of *data width*, and 72 bits of *total width*. The extra 8
-bits which are used for the error detection and correction mechanisms
-are referred to as the *syndrome*\ [#f1]_\ [#f2]_.
-
-So, when the cpu requests the memory controller to write a word with
-*data width*, the memory controller calculates the *syndrome* in real time,
-using Hamming code, or some other error correction code, like SECDED+,
-producing a code with *total width* size. Such code is then written
-on the memory modules.
-
-At read, the *total width* bits code is converted back, using the same
-ECC code used on write, producing a word with *data width* and a *syndrome*.
-The word with *data width* is sent to the CPU, even when errors happen.
-
-The memory controller also looks at the *syndrome* in order to check if
-there was an error, and if the ECC code was able to fix such error.
-If the error was corrected, a Corrected Error (CE) happened. If not, an
-Uncorrected Error (UE) happened.
-
-The information about the CE/UE errors is stored on some special registers
-at the memory controller and can be accessed by reading such registers,
-either by BIOS, by some special CPUs or by Linux EDAC driver. On x86 64
-bit CPUs, such errors can also be retrieved via the Machine Check
-Architecture (MCA)\ [#f3]_.
-
-.. [#f1] Please notice that several memory controllers allow operation on a
- mode called "Lock-Step", where it groups two memory modules together,
- doing 128-bit reads/writes. That gives 16 bits for error correction, with
- significantly improves the error correction mechanism, at the expense
- that, when an error happens, there's no way to know what memory module is
- to blame. So, it has to blame both memory modules.
-
-.. [#f2] Some memory controllers also allow using memory in mirror mode.
- On such mode, the same data is written to two memory modules. At read,
- the system checks both memory modules, in order to check if both provide
- identical data. On such configuration, when an error happens, there's no
- way to know what memory module is to blame. So, it has to blame both
- memory modules (or 4 memory modules, if the system is also on Lock-step
- mode).
-
-.. [#f3] For more details about the Machine Check Architecture (MCA),
- please read Documentation/arch/x86/x86_64/machinecheck.rst at the Kernel tree.
-
-EDAC - Error Detection And Correction
-*************************************
-
-.. note::
-
- "bluesmoke" was the name for this device driver subsystem when it
- was "out-of-tree" and maintained at http://bluesmoke.sourceforge.net.
- That site is mostly archaic now and can be used only for historical
- purposes.
-
- When the subsystem was pushed upstream for the first time, on
- Kernel 2.6.16, it was renamed to ``EDAC``.
-
-Purpose
--------
-
-The ``edac`` kernel module's goal is to detect and report hardware errors
-that occur within the computer system running under linux.
-
-Memory
-------
-
-Memory Correctable Errors (CE) and Uncorrectable Errors (UE) are the
-primary errors being harvested. These types of errors are harvested by
-the ``edac_mc`` device.
-
-Detecting CE events, then harvesting those events and reporting them,
-**can** but must not necessarily be a predictor of future UE events. With
-CE events only, the system can and will continue to operate as no data
-has been damaged yet.
-
-However, preventive maintenance and proactive part replacement of memory
-modules exhibiting CEs can reduce the likelihood of the dreaded UE events
-and system panics.
-
-Other hardware elements
------------------------
-
-A new feature for EDAC, the ``edac_device`` class of device, was added in
-the 2.6.23 version of the kernel.
-
-This new device type allows for non-memory type of ECC hardware detectors
-to have their states harvested and presented to userspace via the sysfs
-interface.
-
-Some architectures have ECC detectors for L1, L2 and L3 caches,
-along with DMA engines, fabric switches, main data path switches,
-interconnections, and various other hardware data paths. If the hardware
-reports it, then a edac_device device probably can be constructed to
-harvest and present that to userspace.
-
-
-PCI bus scanning
-----------------
-
-In addition, PCI devices are scanned for PCI Bus Parity and SERR Errors
-in order to determine if errors are occurring during data transfers.
-
-The presence of PCI Parity errors must be examined with a grain of salt.
-There are several add-in adapters that do **not** follow the PCI specification
-with regards to Parity generation and reporting. The specification says
-the vendor should tie the parity status bits to 0 if they do not intend
-to generate parity. Some vendors do not do this, and thus the parity bit
-can "float" giving false positives.
-
-There is a PCI device attribute located in sysfs that is checked by
-the EDAC PCI scanning code. If that attribute is set, PCI parity/error
-scanning is skipped for that device. The attribute is::
-
- broken_parity_status
-
-and is located in ``/sys/devices/pci<XXX>/0000:XX:YY.Z`` directories for
-PCI devices.
-
-
-Versioning
-----------
-
-EDAC is composed of a "core" module (``edac_core.ko``) and several Memory
-Controller (MC) driver modules. On a given system, the CORE is loaded
-and one MC driver will be loaded. Both the CORE and the MC driver (or
-``edac_device`` driver) have individual versions that reflect current
-release level of their respective modules.
-
-Thus, to "report" on what version a system is running, one must report
-both the CORE's and the MC driver's versions.
-
-
-Loading
--------
-
-If ``edac`` was statically linked with the kernel then no loading
-is necessary. If ``edac`` was built as modules then simply modprobe
-the ``edac`` pieces that you need. You should be able to modprobe
-hardware-specific modules and have the dependencies load the necessary
-core modules.
-
-Example::
-
- $ modprobe amd76x_edac
-
-loads both the ``amd76x_edac.ko`` memory controller module and the
-``edac_mc.ko`` core module.
-
-
-Sysfs interface
----------------
-
-EDAC presents a ``sysfs`` interface for control and reporting purposes. It
-lives in the /sys/devices/system/edac directory.
-
-Within this directory there currently reside 2 components:
-
- ======= ==============================
- mc memory controller(s) system
- pci PCI control and status system
- ======= ==============================
-
-
-
-Memory Controller (mc) Model
-----------------------------
-
-Each ``mc`` device controls a set of memory modules [#f4]_. These modules
-are laid out in a Chip-Select Row (``csrowX``) and Channel table (``chX``).
-There can be multiple csrows and multiple channels.
-
-.. [#f4] Nowadays, the term DIMM (Dual In-line Memory Module) is widely
- used to refer to a memory module, although there are other memory
- packaging alternatives, like SO-DIMM, SIMM, etc. The UEFI
- specification (Version 2.7) defines a memory module in the Common
- Platform Error Record (CPER) section to be an SMBIOS Memory Device
- (Type 17). Along this document, and inside the EDAC subsystem, the term
- "dimm" is used for all memory modules, even when they use a
- different kind of packaging.
-
-Memory controllers allow for several csrows, with 8 csrows being a
-typical value. Yet, the actual number of csrows depends on the layout of
-a given motherboard, memory controller and memory module characteristics.
-
-Dual channels allow for dual data length (e. g. 128 bits, on 64 bit systems)
-data transfers to/from the CPU from/to memory. Some newer chipsets allow
-for more than 2 channels, like Fully Buffered DIMMs (FB-DIMMs) memory
-controllers. The following example will assume 2 channels:
-
- +------------+-----------------------+
- | CS Rows | Channels |
- +------------+-----------+-----------+
- | | ``ch0`` | ``ch1`` |
- +============+===========+===========+
- | |**DIMM_A0**|**DIMM_B0**|
- +------------+-----------+-----------+
- | ``csrow0`` | rank0 | rank0 |
- +------------+-----------+-----------+
- | ``csrow1`` | rank1 | rank1 |
- +------------+-----------+-----------+
- | |**DIMM_A1**|**DIMM_B1**|
- +------------+-----------+-----------+
- | ``csrow2`` | rank0 | rank0 |
- +------------+-----------+-----------+
- | ``csrow3`` | rank1 | rank1 |
- +------------+-----------+-----------+
-
-In the above example, there are 4 physical slots on the motherboard
-for memory DIMMs:
-
- +---------+---------+
- | DIMM_A0 | DIMM_B0 |
- +---------+---------+
- | DIMM_A1 | DIMM_B1 |
- +---------+---------+
-
-Labels for these slots are usually silk-screened on the motherboard.
-Slots labeled ``A`` are channel 0 in this example. Slots labeled ``B`` are
-channel 1. Notice that there are two csrows possible on a physical DIMM.
-These csrows are allocated their csrow assignment based on the slot into
-which the memory DIMM is placed. Thus, when 1 DIMM is placed in each
-Channel, the csrows cross both DIMMs.
-
-Memory DIMMs come single or dual "ranked". A rank is a populated csrow.
-In the example above 2 dual ranked DIMMs are similarly placed. Thus,
-both csrow0 and csrow1 are populated. On the other hand, when 2 single
-ranked DIMMs are placed in slots DIMM_A0 and DIMM_B0, then they will
-have just one csrow (csrow0) and csrow1 will be empty. The pattern
-repeats itself for csrow2 and csrow3. Also note that some memory
-controllers don't have any logic to identify the memory module, see
-``rankX`` directories below.
-
-The representation of the above is reflected in the directory
-tree in EDAC's sysfs interface. Starting in directory
-``/sys/devices/system/edac/mc``, each memory controller will be
-represented by its own ``mcX`` directory, where ``X`` is the
-index of the MC::
-
- ..../edac/mc/
- |
- |->mc0
- |->mc1
- |->mc2
- ....
-
-Under each ``mcX`` directory each ``csrowX`` is again represented by a
-``csrowX``, where ``X`` is the csrow index::
-
- .../mc/mc0/
- |
- |->csrow0
- |->csrow2
- |->csrow3
- ....
-
-Notice that there is no csrow1, which indicates that csrow0 is composed
-of a single ranked DIMMs. This should also apply in both Channels, in
-order to have dual-channel mode be operational. Since both csrow2 and
-csrow3 are populated, this indicates a dual ranked set of DIMMs for
-channels 0 and 1.
-
-Within each of the ``mcX`` and ``csrowX`` directories are several EDAC
-control and attribute files.
-
-``mcX`` directories
--------------------
-
-In ``mcX`` directories are EDAC control and attribute files for
-this ``X`` instance of the memory controllers.
-
-For a description of the sysfs API, please see:
-
- Documentation/ABI/testing/sysfs-devices-edac
-
-
-``dimmX`` or ``rankX`` directories
-----------------------------------
-
-The recommended way to use the EDAC subsystem is to look at the information
-provided by the ``dimmX`` or ``rankX`` directories [#f5]_.
-
-A typical EDAC system has the following structure under
-``/sys/devices/system/edac/``\ [#f6]_::
-
- /sys/devices/system/edac/
- ├── mc
- │   ├── mc0
- │   │   ├── ce_count
- │   │   ├── ce_noinfo_count
- │   │   ├── dimm0
- │   │   │   ├── dimm_ce_count
- │   │   │   ├── dimm_dev_type
- │   │   │   ├── dimm_edac_mode
- │   │   │   ├── dimm_label
- │   │   │   ├── dimm_location
- │   │   │   ├── dimm_mem_type
- │   │   │   ├── dimm_ue_count
- │   │   │   ├── size
- │   │   │   └── uevent
- │   │   ├── max_location
- │   │   ├── mc_name
- │   │   ├── reset_counters
- │   │   ├── seconds_since_reset
- │   │   ├── size_mb
- │   │   ├── ue_count
- │   │   ├── ue_noinfo_count
- │   │   └── uevent
- │   ├── mc1
- │   │   ├── ce_count
- │   │   ├── ce_noinfo_count
- │   │   ├── dimm0
- │   │   │   ├── dimm_ce_count
- │   │   │   ├── dimm_dev_type
- │   │   │   ├── dimm_edac_mode
- │   │   │   ├── dimm_label
- │   │   │   ├── dimm_location
- │   │   │   ├── dimm_mem_type
- │   │   │   ├── dimm_ue_count
- │   │   │   ├── size
- │   │   │   └── uevent
- │   │   ├── max_location
- │   │   ├── mc_name
- │   │   ├── reset_counters
- │   │   ├── seconds_since_reset
- │   │   ├── size_mb
- │   │   ├── ue_count
- │   │   ├── ue_noinfo_count
- │   │   └── uevent
- │   └── uevent
- └── uevent
-
-In the ``dimmX`` directories are EDAC control and attribute files for
-this ``X`` memory module:
-
-- ``size`` - Total memory managed by this csrow attribute file
-
- This attribute file displays, in count of megabytes, the memory
- that this csrow contains.
-
-- ``dimm_ue_count`` - Uncorrectable Errors count attribute file
-
- This attribute file displays the total count of uncorrectable
- errors that have occurred on this DIMM. If panic_on_ue is set
- this counter will not have a chance to increment, since EDAC
- will panic the system.
-
-- ``dimm_ce_count`` - Correctable Errors count attribute file
-
- This attribute file displays the total count of correctable
- errors that have occurred on this DIMM. This count is very
- important to examine. CEs provide early indications that a
- DIMM is beginning to fail. This count field should be
- monitored for non-zero values and report such information
- to the system administrator.
-
-- ``dimm_dev_type`` - Device type attribute file
-
- This attribute file will display what type of DRAM device is
- being utilized on this DIMM.
- Examples:
-
- - x1
- - x2
- - x4
- - x8
-
-- ``dimm_edac_mode`` - EDAC Mode of operation attribute file
-
- This attribute file will display what type of Error detection
- and correction is being utilized.
-
-- ``dimm_label`` - memory module label control file
-
- This control file allows this DIMM to have a label assigned
- to it. With this label in the module, when errors occur
- the output can provide the DIMM label in the system log.
- This becomes vital for panic events to isolate the
- cause of the UE event.
-
- DIMM Labels must be assigned after booting, with information
- that correctly identifies the physical slot with its
- silk screen label. This information is currently very
- motherboard specific and determination of this information
- must occur in userland at this time.
-
-- ``dimm_location`` - location of the memory module
-
- The location can have up to 3 levels, and describe how the
- memory controller identifies the location of a memory module.
- Depending on the type of memory and memory controller, it
- can be:
-
- - *csrow* and *channel* - used when the memory controller
- doesn't identify a single DIMM - e. g. in ``rankX`` dir;
- - *branch*, *channel*, *slot* - typically used on FB-DIMM memory
- controllers;
- - *channel*, *slot* - used on Nehalem and newer Intel drivers.
-
-- ``dimm_mem_type`` - Memory Type attribute file
-
- This attribute file will display what type of memory is currently
- on this csrow. Normally, either buffered or unbuffered memory.
- Examples:
-
- - Registered-DDR
- - Unbuffered-DDR
-
-.. [#f5] On some systems, the memory controller doesn't have any logic
- to identify the memory module. On such systems, the directory is called ``rankX`` and works on a similar way as the ``csrowX`` directories.
- On modern Intel memory controllers, the memory controller identifies the
- memory modules directly. On such systems, the directory is called ``dimmX``.
-
-.. [#f6] There are also some ``power`` directories and ``subsystem``
- symlinks inside the sysfs mapping that are automatically created by
- the sysfs subsystem. Currently, they serve no purpose.
-
-``csrowX`` directories
-----------------------
-
-When CONFIG_EDAC_LEGACY_SYSFS is enabled, sysfs will contain the ``csrowX``
-directories. As this API doesn't work properly for Rambus, FB-DIMMs and
-modern Intel Memory Controllers, this is being deprecated in favor of
-``dimmX`` directories.
-
-In the ``csrowX`` directories are EDAC control and attribute files for
-this ``X`` instance of csrow:
-
-
-- ``ue_count`` - Total Uncorrectable Errors count attribute file
-
- This attribute file displays the total count of uncorrectable
- errors that have occurred on this csrow. If panic_on_ue is set
- this counter will not have a chance to increment, since EDAC
- will panic the system.
-
-
-- ``ce_count`` - Total Correctable Errors count attribute file
-
- This attribute file displays the total count of correctable
- errors that have occurred on this csrow. This count is very
- important to examine. CEs provide early indications that a
- DIMM is beginning to fail. This count field should be
- monitored for non-zero values and report such information
- to the system administrator.
-
-
-- ``size_mb`` - Total memory managed by this csrow attribute file
-
- This attribute file displays, in count of megabytes, the memory
- that this csrow contains.
-
-
-- ``mem_type`` - Memory Type attribute file
-
- This attribute file will display what type of memory is currently
- on this csrow. Normally, either buffered or unbuffered memory.
- Examples:
-
- - Registered-DDR
- - Unbuffered-DDR
-
-
-- ``edac_mode`` - EDAC Mode of operation attribute file
-
- This attribute file will display what type of Error detection
- and correction is being utilized.
-
-
-- ``dev_type`` - Device type attribute file
-
- This attribute file will display what type of DRAM device is
- being utilized on this DIMM.
- Examples:
-
- - x1
- - x2
- - x4
- - x8
-
-
-- ``ch0_ce_count`` - Channel 0 CE Count attribute file
-
- This attribute file will display the count of CEs on this
- DIMM located in channel 0.
-
-
-- ``ch0_ue_count`` - Channel 0 UE Count attribute file
-
- This attribute file will display the count of UEs on this
- DIMM located in channel 0.
-
-
-- ``ch0_dimm_label`` - Channel 0 DIMM Label control file
-
-
- This control file allows this DIMM to have a label assigned
- to it. With this label in the module, when errors occur
- the output can provide the DIMM label in the system log.
- This becomes vital for panic events to isolate the
- cause of the UE event.
-
- DIMM Labels must be assigned after booting, with information
- that correctly identifies the physical slot with its
- silk screen label. This information is currently very
- motherboard specific and determination of this information
- must occur in userland at this time.
-
-
-- ``ch1_ce_count`` - Channel 1 CE Count attribute file
-
-
- This attribute file will display the count of CEs on this
- DIMM located in channel 1.
-
-
-- ``ch1_ue_count`` - Channel 1 UE Count attribute file
-
-
- This attribute file will display the count of UEs on this
- DIMM located in channel 0.
-
-
-- ``ch1_dimm_label`` - Channel 1 DIMM Label control file
-
- This control file allows this DIMM to have a label assigned
- to it. With this label in the module, when errors occur
- the output can provide the DIMM label in the system log.
- This becomes vital for panic events to isolate the
- cause of the UE event.
-
- DIMM Labels must be assigned after booting, with information
- that correctly identifies the physical slot with its
- silk screen label. This information is currently very
- motherboard specific and determination of this information
- must occur in userland at this time.
-
-
-System Logging
---------------
-
-If logging for UEs and CEs is enabled, then system logs will contain
-information indicating that errors have been detected::
-
- EDAC MC0: CE page 0x283, offset 0xce0, grain 8, syndrome 0x6ec3, row 0, channel 1 "DIMM_B1": amd76x_edac
- EDAC MC0: CE page 0x1e5, offset 0xfb0, grain 8, syndrome 0xb741, row 0, channel 1 "DIMM_B1": amd76x_edac
-
-
-The structure of the message is:
-
- +---------------------------------------+-------------+
- | Content | Example |
- +=======================================+=============+
- | The memory controller | MC0 |
- +---------------------------------------+-------------+
- | Error type | CE |
- +---------------------------------------+-------------+
- | Memory page | 0x283 |
- +---------------------------------------+-------------+
- | Offset in the page | 0xce0 |
- +---------------------------------------+-------------+
- | The byte granularity | grain 8 |
- | or resolution of the error | |
- +---------------------------------------+-------------+
- | The error syndrome | 0xb741 |
- +---------------------------------------+-------------+
- | Memory row | row 0 |
- +---------------------------------------+-------------+
- | Memory channel | channel 1 |
- +---------------------------------------+-------------+
- | DIMM label, if set prior | DIMM B1 |
- +---------------------------------------+-------------+
- | And then an optional, driver-specific | |
- | message that may have additional | |
- | information. | |
- +---------------------------------------+-------------+
-
-Both UEs and CEs with no info will lack all but memory controller, error
-type, a notice of "no info" and then an optional, driver-specific error
-message.
-
-
-PCI Bus Parity Detection
-------------------------
-
-On Header Type 00 devices, the primary status is looked at for any
-parity error regardless of whether parity is enabled on the device or
-not. (The spec indicates parity is generated in some cases). On Header
-Type 01 bridges, the secondary status register is also looked at to see
-if parity occurred on the bus on the other side of the bridge.
-
-
-Sysfs configuration
--------------------
-
-Under ``/sys/devices/system/edac/pci`` are control and attribute files as
-follows:
-
-
-- ``check_pci_parity`` - Enable/Disable PCI Parity checking control file
-
- This control file enables or disables the PCI Bus Parity scanning
- operation. Writing a 1 to this file enables the scanning. Writing
- a 0 to this file disables the scanning.
-
- Enable::
-
- echo "1" >/sys/devices/system/edac/pci/check_pci_parity
-
- Disable::
-
- echo "0" >/sys/devices/system/edac/pci/check_pci_parity
-
-
-- ``pci_parity_count`` - Parity Count
-
- This attribute file will display the number of parity errors that
- have been detected.
-
-
-Module parameters
------------------
-
-- ``edac_mc_panic_on_ue`` - Panic on UE control file
-
- An uncorrectable error will cause a machine panic. This is usually
- desirable. It is a bad idea to continue when an uncorrectable error
- occurs - it is indeterminate what was uncorrected and the operating
- system context might be so mangled that continuing will lead to further
- corruption. If the kernel has MCE configured, then EDAC will never
- notice the UE.
-
- LOAD TIME::
-
- module/kernel parameter: edac_mc_panic_on_ue=[0|1]
-
- RUN TIME::
-
- echo "1" > /sys/module/edac_core/parameters/edac_mc_panic_on_ue
-
-
-- ``edac_mc_log_ue`` - Log UE control file
-
-
- Generate kernel messages describing uncorrectable errors. These errors
- are reported through the system message log system. UE statistics
- will be accumulated even when UE logging is disabled.
-
- LOAD TIME::
-
- module/kernel parameter: edac_mc_log_ue=[0|1]
-
- RUN TIME::
-
- echo "1" > /sys/module/edac_core/parameters/edac_mc_log_ue
-
-
-- ``edac_mc_log_ce`` - Log CE control file
-
-
- Generate kernel messages describing correctable errors. These
- errors are reported through the system message log system.
- CE statistics will be accumulated even when CE logging is disabled.
-
- LOAD TIME::
-
- module/kernel parameter: edac_mc_log_ce=[0|1]
-
- RUN TIME::
-
- echo "1" > /sys/module/edac_core/parameters/edac_mc_log_ce
-
-
-- ``edac_mc_poll_msec`` - Polling period control file
-
-
- The time period, in milliseconds, for polling for error information.
- Too small a value wastes resources. Too large a value might delay
- necessary handling of errors and might loose valuable information for
- locating the error. 1000 milliseconds (once each second) is the current
- default. Systems which require all the bandwidth they can get, may
- increase this.
-
- LOAD TIME::
-
- module/kernel parameter: edac_mc_poll_msec=[0|1]
-
- RUN TIME::
-
- echo "1000" > /sys/module/edac_core/parameters/edac_mc_poll_msec
-
-
-- ``panic_on_pci_parity`` - Panic on PCI PARITY Error
-
-
- This control file enables or disables panicking when a parity
- error has been detected.
-
-
- module/kernel parameter::
-
- edac_panic_on_pci_pe=[0|1]
-
- Enable::
-
- echo "1" > /sys/module/edac_core/parameters/edac_panic_on_pci_pe
-
- Disable::
-
- echo "0" > /sys/module/edac_core/parameters/edac_panic_on_pci_pe
-
-
-
-EDAC device type
-----------------
-
-In the header file, edac_pci.h, there is a series of edac_device structures
-and APIs for the EDAC_DEVICE.
-
-User space access to an edac_device is through the sysfs interface.
-
-At the location ``/sys/devices/system/edac`` (sysfs) new edac_device devices
-will appear.
-
-There is a three level tree beneath the above ``edac`` directory. For example,
-the ``test_device_edac`` device (found at the http://bluesmoke.sourceforget.net
-website) installs itself as::
-
- /sys/devices/system/edac/test-instance
-
-in this directory are various controls, a symlink and one or more ``instance``
-directories.
-
-The standard default controls are:
-
- ============== =======================================================
- log_ce boolean to log CE events
- log_ue boolean to log UE events
- panic_on_ue boolean to ``panic`` the system if an UE is encountered
- (default off, can be set true via startup script)
- poll_msec time period between POLL cycles for events
- ============== =======================================================
-
-The test_device_edac device adds at least one of its own custom control:
-
- ============== ==================================================
- test_bits which in the current test driver does nothing but
- show how it is installed. A ported driver can
- add one or more such controls and/or attributes
- for specific uses.
- One out-of-tree driver uses controls here to allow
- for ERROR INJECTION operations to hardware
- injection registers
- ============== ==================================================
-
-The symlink points to the 'struct dev' that is registered for this edac_device.
-
-Instances
----------
-
-One or more instance directories are present. For the ``test_device_edac``
-case:
-
- +----------------+
- | test-instance0 |
- +----------------+
-
-
-In this directory there are two default counter attributes, which are totals of
-counter in deeper subdirectories.
-
- ============== ====================================
- ce_count total of CE events of subdirectories
- ue_count total of UE events of subdirectories
- ============== ====================================
-
-Blocks
-------
-
-At the lowest directory level is the ``block`` directory. There can be 0, 1
-or more blocks specified in each instance:
-
- +-------------+
- | test-block0 |
- +-------------+
-
-In this directory the default attributes are:
-
- ============== ================================================
- ce_count which is counter of CE events for this ``block``
- of hardware being monitored
- ue_count which is counter of UE events for this ``block``
- of hardware being monitored
- ============== ================================================
-
-
-The ``test_device_edac`` device adds 4 attributes and 1 control:
-
- ================== ====================================================
- test-block-bits-0 for every POLL cycle this counter
- is incremented
- test-block-bits-1 every 10 cycles, this counter is bumped once,
- and test-block-bits-0 is set to 0
- test-block-bits-2 every 100 cycles, this counter is bumped once,
- and test-block-bits-1 is set to 0
- test-block-bits-3 every 1000 cycles, this counter is bumped once,
- and test-block-bits-2 is set to 0
- ================== ====================================================
-
-
- ================== ====================================================
- reset-counters writing ANY thing to this control will
- reset all the above counters.
- ================== ====================================================
-
-
-Use of the ``test_device_edac`` driver should enable any others to create their own
-unique drivers for their hardware systems.
-
-The ``test_device_edac`` sample driver is located at the
-http://bluesmoke.sourceforge.net project site for EDAC.
-
-
-Usage of EDAC APIs on Nehalem and newer Intel CPUs
---------------------------------------------------
-
-On older Intel architectures, the memory controller was part of the North
-Bridge chipset. Nehalem, Sandy Bridge, Ivy Bridge, Haswell, Sky Lake and
-newer Intel architectures integrated an enhanced version of the memory
-controller (MC) inside the CPUs.
-
-This chapter will cover the differences of the enhanced memory controllers
-found on newer Intel CPUs, such as ``i7core_edac``, ``sb_edac`` and
-``sbx_edac`` drivers.
-
-.. note::
-
- The Xeon E7 processor families use a separate chip for the memory
- controller, called Intel Scalable Memory Buffer. This section doesn't
- apply for such families.
-
-1) There is one Memory Controller per Quick Patch Interconnect
- (QPI). At the driver, the term "socket" means one QPI. This is
- associated with a physical CPU socket.
-
- Each MC have 3 physical read channels, 3 physical write channels and
- 3 logic channels. The driver currently sees it as just 3 channels.
- Each channel can have up to 3 DIMMs.
-
- The minimum known unity is DIMMs. There are no information about csrows.
- As EDAC API maps the minimum unity is csrows, the driver sequentially
- maps channel/DIMM into different csrows.
-
- For example, supposing the following layout::
-
- Ch0 phy rd0, wr0 (0x063f4031): 2 ranks, UDIMMs
- dimm 0 1024 Mb offset: 0, bank: 8, rank: 1, row: 0x4000, col: 0x400
- dimm 1 1024 Mb offset: 4, bank: 8, rank: 1, row: 0x4000, col: 0x400
- Ch1 phy rd1, wr1 (0x063f4031): 2 ranks, UDIMMs
- dimm 0 1024 Mb offset: 0, bank: 8, rank: 1, row: 0x4000, col: 0x400
- Ch2 phy rd3, wr3 (0x063f4031): 2 ranks, UDIMMs
- dimm 0 1024 Mb offset: 0, bank: 8, rank: 1, row: 0x4000, col: 0x400
-
- The driver will map it as::
-
- csrow0: channel 0, dimm0
- csrow1: channel 0, dimm1
- csrow2: channel 1, dimm0
- csrow3: channel 2, dimm0
-
- exports one DIMM per csrow.
-
- Each QPI is exported as a different memory controller.
-
-2) The MC has the ability to inject errors to test drivers. The drivers
- implement this functionality via some error injection nodes:
-
- For injecting a memory error, there are some sysfs nodes, under
- ``/sys/devices/system/edac/mc/mc?/``:
-
- - ``inject_addrmatch/*``:
- Controls the error injection mask register. It is possible to specify
- several characteristics of the address to match an error code::
-
- dimm = the affected dimm. Numbers are relative to a channel;
- rank = the memory rank;
- channel = the channel that will generate an error;
- bank = the affected bank;
- page = the page address;
- column (or col) = the address column.
-
- each of the above values can be set to "any" to match any valid value.
-
- At driver init, all values are set to any.
-
- For example, to generate an error at rank 1 of dimm 2, for any channel,
- any bank, any page, any column::
-
- echo 2 >/sys/devices/system/edac/mc/mc0/inject_addrmatch/dimm
- echo 1 >/sys/devices/system/edac/mc/mc0/inject_addrmatch/rank
-
- To return to the default behaviour of matching any, you can do::
-
- echo any >/sys/devices/system/edac/mc/mc0/inject_addrmatch/dimm
- echo any >/sys/devices/system/edac/mc/mc0/inject_addrmatch/rank
-
- - ``inject_eccmask``:
- specifies what bits will have troubles,
-
- - ``inject_section``:
- specifies what ECC cache section will get the error::
-
- 3 for both
- 2 for the highest
- 1 for the lowest
-
- - ``inject_type``:
- specifies the type of error, being a combination of the following bits::
-
- bit 0 - repeat
- bit 1 - ecc
- bit 2 - parity
-
- - ``inject_enable``:
- starts the error generation when something different than 0 is written.
-
- All inject vars can be read. root permission is needed for write.
-
- Datasheet states that the error will only be generated after a write on an
- address that matches inject_addrmatch. It seems, however, that reading will
- also produce an error.
-
- For example, the following code will generate an error for any write access
- at socket 0, on any DIMM/address on channel 2::
-
- echo 2 >/sys/devices/system/edac/mc/mc0/inject_addrmatch/channel
- echo 2 >/sys/devices/system/edac/mc/mc0/inject_type
- echo 64 >/sys/devices/system/edac/mc/mc0/inject_eccmask
- echo 3 >/sys/devices/system/edac/mc/mc0/inject_section
- echo 1 >/sys/devices/system/edac/mc/mc0/inject_enable
- dd if=/dev/mem of=/dev/null seek=16k bs=4k count=1 >& /dev/null
-
- For socket 1, it is needed to replace "mc0" by "mc1" at the above
- commands.
-
- The generated error message will look like::
-
- EDAC MC0: UE row 0, channel-a= 0 channel-b= 0 labels "-": NON_FATAL (addr = 0x0075b980, socket=0, Dimm=0, Channel=2, syndrome=0x00000040, count=1, Err=8c0000400001009f:4000080482 (read error: read ECC error))
-
-3) Corrected Error memory register counters
-
- Those newer MCs have some registers to count memory errors. The driver
- uses those registers to report Corrected Errors on devices with Registered
- DIMMs.
-
- However, those counters don't work with Unregistered DIMM. As the chipset
- offers some counters that also work with UDIMMs (but with a worse level of
- granularity than the default ones), the driver exposes those registers for
- UDIMM memories.
-
- They can be read by looking at the contents of ``all_channel_counts/``::
-
- $ for i in /sys/devices/system/edac/mc/mc0/all_channel_counts/*; do echo $i; cat $i; done
- /sys/devices/system/edac/mc/mc0/all_channel_counts/udimm0
- 0
- /sys/devices/system/edac/mc/mc0/all_channel_counts/udimm1
- 0
- /sys/devices/system/edac/mc/mc0/all_channel_counts/udimm2
- 0
-
- What happens here is that errors on different csrows, but at the same
- dimm number will increment the same counter.
- So, in this memory mapping::
-
- csrow0: channel 0, dimm0
- csrow1: channel 0, dimm1
- csrow2: channel 1, dimm0
- csrow3: channel 2, dimm0
-
- The hardware will increment udimm0 for an error at the first dimm at either
- csrow0, csrow2 or csrow3;
-
- The hardware will increment udimm1 for an error at the second dimm at either
- csrow0, csrow2 or csrow3;
-
- The hardware will increment udimm2 for an error at the third dimm at either
- csrow0, csrow2 or csrow3;
-
-4) Standard error counters
-
- The standard error counters are generated when an mcelog error is received
- by the driver. Since, with UDIMM, this is counted by software, it is
- possible that some errors could be lost. With RDIMM's, they display the
- contents of the registers
-
-Reference documents used on ``amd64_edac``
-------------------------------------------
-
-``amd64_edac`` module is based on the following documents
-(available from http://support.amd.com/en-us/search/tech-docs):
-
-1. :Title: BIOS and Kernel Developer's Guide for AMD Athlon 64 and AMD
- Opteron Processors
- :AMD publication #: 26094
- :Revision: 3.26
- :Link: http://support.amd.com/TechDocs/26094.PDF
-
-2. :Title: BIOS and Kernel Developer's Guide for AMD NPT Family 0Fh
- Processors
- :AMD publication #: 32559
- :Revision: 3.00
- :Issue Date: May 2006
- :Link: http://support.amd.com/TechDocs/32559.pdf
-
-3. :Title: BIOS and Kernel Developer's Guide (BKDG) For AMD Family 10h
- Processors
- :AMD publication #: 31116
- :Revision: 3.00
- :Issue Date: September 07, 2007
- :Link: http://support.amd.com/TechDocs/31116.pdf
-
-4. :Title: BIOS and Kernel Developer's Guide (BKDG) for AMD Family 15h
- Models 30h-3Fh Processors
- :AMD publication #: 49125
- :Revision: 3.06
- :Issue Date: 2/12/2015 (latest release)
- :Link: http://support.amd.com/TechDocs/49125_15h_Models_30h-3Fh_BKDG.pdf
-
-5. :Title: BIOS and Kernel Developer's Guide (BKDG) for AMD Family 15h
- Models 60h-6Fh Processors
- :AMD publication #: 50742
- :Revision: 3.01
- :Issue Date: 7/23/2015 (latest release)
- :Link: http://support.amd.com/TechDocs/50742_15h_Models_60h-6Fh_BKDG.pdf
-
-6. :Title: BIOS and Kernel Developer's Guide (BKDG) for AMD Family 16h
- Models 00h-0Fh Processors
- :AMD publication #: 48751
- :Revision: 3.03
- :Issue Date: 2/23/2015 (latest release)
- :Link: http://support.amd.com/TechDocs/48751_16h_bkdg.pdf
-
-Credits
-=======
-
-* Written by Doug Thompson <dougthompson@xmission.com>
-
- - 7 Dec 2005
- - 17 Jul 2007 Updated
-
-* |copy| Mauro Carvalho Chehab
-
- - 05 Aug 2009 Nehalem interface
- - 26 Oct 2016 Converted to ReST and cleanups at the Nehalem section
-
-* EDAC authors/maintainers:
-
- - Doug Thompson, Dave Jiang, Dave Peterson et al,
- - Mauro Carvalho Chehab
- - Borislav Petkov
- - original author: Thayne Harbaugh
diff --git a/Documentation/admin-guide/reporting-issues.rst b/Documentation/admin-guide/reporting-issues.rst
index 2fd5a030235a..a68e6d909274 100644
--- a/Documentation/admin-guide/reporting-issues.rst
+++ b/Documentation/admin-guide/reporting-issues.rst
@@ -41,7 +41,7 @@ If you are facing multiple issues with the Linux kernel at once, report each
separately. While writing your report, include all information relevant to the
issue, like the kernel and the distro used. In case of a regression, CC the
regressions mailing list (regressions@lists.linux.dev) to your report. Also try
-to pin-point the culprit with a bisection; if you succeed, include its
+to pinpoint the culprit with a bisection; if you succeed, include its
commit-id and CC everyone in the sign-off-by chain.
Once the report is out, answer any questions that come up and help where you
@@ -206,7 +206,7 @@ Reporting issues only occurring in older kernel version lines
This subsection is for you, if you tried the latest mainline kernel as outlined
above, but failed to reproduce your issue there; at the same time you want to
see the issue fixed in a still supported stable or longterm series or vendor
-kernels regularly rebased on those. If that the case, follow these steps:
+kernels regularly rebased on those. If that is the case, follow these steps:
* Prepare yourself for the possibility that going through the next few steps
might not get the issue solved in older releases: the fix might be too big
@@ -312,7 +312,7 @@ small modifications to a kernel based on a recent Linux version; that for
example often holds true for the mainline kernels shipped by Debian GNU/Linux
Sid or Fedora Rawhide. Some developers will also accept reports about issues
with kernels from distributions shipping the latest stable kernel, as long as
-its only slightly modified; that for example is often the case for Arch Linux,
+it's only slightly modified; that for example is often the case for Arch Linux,
regular Fedora releases, and openSUSE Tumbleweed. But keep in mind, you better
want to use a mainline Linux and avoid using a stable kernel for this
process, as outlined in the section 'Install a fresh kernel for testing' in more
@@ -611,7 +611,7 @@ better place.
How to read the MAINTAINERS file
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-To illustrate how to use the :ref:`MAINTAINERS <maintainers>` file, lets assume
+To illustrate how to use the :ref:`MAINTAINERS <maintainers>` file, let's assume
the WiFi in your Laptop suddenly misbehaves after updating the kernel. In that
case it's likely an issue in the WiFi driver. Obviously it could also be some
code it builds upon, but unless you suspect something like that stick to the
@@ -1543,7 +1543,7 @@ as well, because that will speed things up.
And note, it helps developers a great deal if you can specify the exact version
that introduced the problem. Hence if possible within a reasonable time frame,
-try to find that version using vanilla kernels. Lets assume something broke when
+try to find that version using vanilla kernels. Let's assume something broke when
your distributor released a update from Linux kernel 5.10.5 to 5.10.8. Then as
instructed above go and check the latest kernel from that version line, say
5.10.9. If it shows the problem, try a vanilla 5.10.5 to ensure that no patches
diff --git a/Documentation/admin-guide/reporting-regressions.rst b/Documentation/admin-guide/reporting-regressions.rst
index d8adccdae23f..946518355a2c 100644
--- a/Documentation/admin-guide/reporting-regressions.rst
+++ b/Documentation/admin-guide/reporting-regressions.rst
@@ -31,7 +31,7 @@ The important bits (aka "TL;DR")
Linux kernel regression tracking bot "regzbot" track the issue by specifying
when the regression started like this::
- #regzbot introduced v5.13..v5.14-rc1
+ #regzbot introduced: v5.13..v5.14-rc1
All the details on Linux kernel regressions relevant for users
@@ -42,12 +42,12 @@ The important basics
--------------------
-What is a "regression" and what is the "no regressions rule"?
+What is a "regression" and what is the "no regressions" rule?
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
It's a regression if some application or practical use case running fine with
one Linux kernel works worse or not at all with a newer version compiled using a
-similar configuration. The "no regressions rule" forbids this to take place; if
+similar configuration. The "no regressions" rule forbids this to take place; if
it happens by accident, developers that caused it are expected to quickly fix
the issue.
@@ -173,7 +173,7 @@ Additional details about regressions
------------------------------------
-What is the goal of the "no regressions rule"?
+What is the goal of the "no regressions" rule?
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Users should feel safe when updating kernel versions and not have to worry
@@ -199,8 +199,8 @@ Exceptions to this rule are extremely rare; in the past developers almost always
turned out to be wrong when they assumed a particular situation was warranting
an exception.
-Who ensures the "no regressions" is actually followed?
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+Who ensures the "no regressions" rule is actually followed?
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The subsystem maintainers should take care of that, which are watched and
supported by the tree maintainers -- e.g. Linus Torvalds for mainline and
diff --git a/Documentation/admin-guide/serial-console.rst b/Documentation/admin-guide/serial-console.rst
index 8c8b94e54e26..1609e7479249 100644
--- a/Documentation/admin-guide/serial-console.rst
+++ b/Documentation/admin-guide/serial-console.rst
@@ -59,7 +59,7 @@ times. In this case, there are the following two rules:
the hardware is not available.
The result might be surprising. For example, the following two command
-lines have the same result:
+lines have the same result::
console=ttyS1,9600 console=tty0 console=tty1
console=tty0 console=ttyS1,9600 console=tty1
@@ -78,7 +78,9 @@ If no console device is specified, the first device found capable of
acting as a system console will be used. At this time, the system
first looks for a VGA card and then for a serial port. So if you don't
have a VGA card in your system the first serial port will automatically
-become the console.
+become the console, unless the kernel is configured with the
+CONFIG_NULL_TTY_DEFAULT_CONSOLE option, then it will default to using the
+ttynull device.
You will need to create a new device to use ``/dev/console``. The official
``/dev/console`` is now character device 5,1.
diff --git a/Documentation/admin-guide/spkguide.txt b/Documentation/admin-guide/spkguide.txt
index 74ea7f391942..0d5965138f8f 100644
--- a/Documentation/admin-guide/spkguide.txt
+++ b/Documentation/admin-guide/spkguide.txt
@@ -7,7 +7,7 @@ Last modified on Mon Sep 27 14:26:31 2010
Document version 1.3
Copyright (c) 2005 Gene Collins
-Copyright (c) 2008 Samuel Thibault
+Copyright (c) 2008, 2023 Samuel Thibault
Copyright (c) 2009, 2010 the Speakup Team
Permission is granted to copy, distribute and/or modify this document
@@ -83,8 +83,7 @@ spkout -- Speak Out
txprt -- Transport
dummy -- Plain text terminal
-Note: Speakup does * NOT * support usb connections! Speakup also does *
-NOT * support the internal Tripletalk!
+Note: Speakup does * NOT * support the internal Tripletalk!
Speakup does support two other synthesizers, but because they work in
conjunction with other software, they must be loaded as modules after
@@ -94,6 +93,12 @@ These are as follows:
decpc -- DecTalk PC (not available at boot up)
soft -- One of several software synthesizers (not available at boot up)
+By default speakup looks for the synthesizer on the ttyS0 serial port. This can
+be changed with the device parameter of the modules, for instance for
+DoubleTalk LT:
+
+speakup_ltlk.dev=ttyUSB0
+
See the sections on loading modules and software synthesizers later in
this manual for further details. It should be noted here that the
speakup.synth boot parameter will have no effect if Speakup has been
diff --git a/Documentation/admin-guide/syscall-user-dispatch.rst b/Documentation/admin-guide/syscall-user-dispatch.rst
index e3cfffef5a63..c1768d9e80fa 100644
--- a/Documentation/admin-guide/syscall-user-dispatch.rst
+++ b/Documentation/admin-guide/syscall-user-dispatch.rst
@@ -53,20 +53,25 @@ following prctl:
prctl(PR_SET_SYSCALL_USER_DISPATCH, <op>, <offset>, <length>, [selector])
-<op> is either PR_SYS_DISPATCH_ON or PR_SYS_DISPATCH_OFF, to enable and
-disable the mechanism globally for that thread. When
-PR_SYS_DISPATCH_OFF is used, the other fields must be zero.
-
-[<offset>, <offset>+<length>) delimit a memory region interval
-from which syscalls are always executed directly, regardless of the
-userspace selector. This provides a fast path for the C library, which
-includes the most common syscall dispatchers in the native code
-applications, and also provides a way for the signal handler to return
+<op> is either PR_SYS_DISPATCH_EXCLUSIVE_ON/PR_SYS_DISPATCH_INCLUSIVE_ON
+or PR_SYS_DISPATCH_OFF, to enable and disable the mechanism globally for
+that thread. When PR_SYS_DISPATCH_OFF is used, the other fields must be zero.
+
+For PR_SYS_DISPATCH_EXCLUSIVE_ON [<offset>, <offset>+<length>) delimit
+a memory region interval from which syscalls are always executed directly,
+regardless of the userspace selector. This provides a fast path for the
+C library, which includes the most common syscall dispatchers in the native
+code applications, and also provides a way for the signal handler to return
without triggering a nested SIGSYS on (rt\_)sigreturn. Users of this
interface should make sure that at least the signal trampoline code is
included in this region. In addition, for syscalls that implement the
trampoline code on the vDSO, that trampoline is never intercepted.
+For PR_SYS_DISPATCH_INCLUSIVE_ON [<offset>, <offset>+<length>) delimit
+a memory region interval from which syscalls are dispatched based on
+the userspace selector. Syscalls from outside of the range are always
+executed directly.
+
[selector] is a pointer to a char-sized region in the process memory
region, that provides a quick way to enable disable syscall redirection
thread-wide, without the need to invoke the kernel directly. selector
diff --git a/Documentation/admin-guide/sysctl/fs.rst b/Documentation/admin-guide/sysctl/fs.rst
index a321b84eccaa..9b7f65c3efd8 100644
--- a/Documentation/admin-guide/sysctl/fs.rst
+++ b/Documentation/admin-guide/sysctl/fs.rst
@@ -38,20 +38,25 @@ requests. ``aio-max-nr`` allows you to change the maximum value
``aio-max-nr`` does not result in the
pre-allocation or re-sizing of any kernel data structures.
+dentry-negative
+----------------------------
+
+Policy for negative dentries. Set to 1 to always delete the dentry when a
+file is removed, and 0 to disable it. By default, this behavior is disabled.
dentry-state
------------
-This file shows the values in ``struct dentry_stat``, as defined in
-``linux/include/linux/dcache.h``::
+This file shows the values in ``struct dentry_stat_t``, as defined in
+``fs/dcache.c``::
struct dentry_stat_t dentry_stat {
- int nr_dentry;
- int nr_unused;
- int age_limit; /* age in seconds */
- int want_pages; /* pages requested by system */
- int nr_negative; /* # of unused negative dentries */
- int dummy; /* Reserved for future use */
+ long nr_dentry;
+ long nr_unused;
+ long age_limit; /* age in seconds */
+ long want_pages; /* pages requested by system */
+ long nr_negative; /* # of unused negative dentries */
+ long dummy; /* Reserved for future use */
};
Dentries are dynamically allocated and deallocated.
@@ -159,8 +164,8 @@ pipe-user-pages-soft
--------------------
Maximum total number of pages a non-privileged user may allocate for pipes
-before the pipe size gets limited to a single page. Once this limit is reached,
-new pipes will be limited to a single page in size for this user in order to
+before the pipe size gets limited to two pages. Once this limit is reached,
+new pipes will be limited to two pages in size for this user in order to
limit total memory usage, and trying to increase them using ``fcntl()`` will be
denied until usage goes below the limit again. The default value allows to
allocate up to 1024 pipes at their default size. When set to 0, no limit is
@@ -332,3 +337,38 @@ Each "watch" costs roughly 90 bytes on a 32-bit kernel, and roughly 160 bytes
on a 64-bit one.
The current default value for ``max_user_watches`` is 4% of the
available low memory, divided by the "watch" cost in bytes.
+
+5. /proc/sys/fs/fuse - Configuration options for FUSE filesystems
+=====================================================================
+
+This directory contains the following configuration options for FUSE
+filesystems:
+
+``/proc/sys/fs/fuse/max_pages_limit`` is a read/write file for
+setting/getting the maximum number of pages that can be used for servicing
+requests in FUSE.
+
+``/proc/sys/fs/fuse/default_request_timeout`` is a read/write file for
+setting/getting the default timeout (in seconds) for a fuse server to
+reply to a kernel-issued request in the event where the server did not
+specify a timeout at mount. If the server set a timeout,
+then default_request_timeout will be ignored. The default
+"default_request_timeout" is set to 0. 0 indicates no default timeout.
+The maximum value that can be set is 65535.
+
+``/proc/sys/fs/fuse/max_request_timeout`` is a read/write file for
+setting/getting the maximum timeout (in seconds) for a fuse server to
+reply to a kernel-issued request. A value greater than 0 automatically opts
+the server into a timeout that will be set to at most "max_request_timeout",
+even if the server did not specify a timeout and default_request_timeout is
+set to 0. If max_request_timeout is greater than 0 and the server set a timeout
+greater than max_request_timeout or default_request_timeout is set to a value
+greater than max_request_timeout, the system will use max_request_timeout as the
+timeout. 0 indicates no max request timeout. The maximum value that can be set
+is 65535.
+
+For timeouts, if the server does not respond to the request by the time
+the set timeout elapses, then the connection to the fuse server will be aborted.
+Please note that the timeouts are not 100% precise (eg you may set 60 seconds but
+the timeout may kick in after 70 seconds). The upper margin of error for the
+timeout is roughly FUSE_TIMEOUT_TIMER_FREQ seconds.
diff --git a/Documentation/admin-guide/sysctl/index.rst b/Documentation/admin-guide/sysctl/index.rst
index 03346f98c7b9..4dd2c9b5d752 100644
--- a/Documentation/admin-guide/sysctl/index.rst
+++ b/Documentation/admin-guide/sysctl/index.rst
@@ -66,25 +66,31 @@ This documentation is about:
=============== ===============================================================
abi/ execution domains & personalities
-debug/ <empty>
-dev/ device specific information (eg dev/cdrom/info)
+<$ARCH> tuning controls for various CPU architecture (e.g. csky, s390)
+crypto/ <undocumented>
+debug/ <undocumented>
+dev/ device specific information (e.g. dev/cdrom/info)
fs/ specific filesystems
filehandle, inode, dentry and quota tuning
binfmt_misc <Documentation/admin-guide/binfmt-misc.rst>
kernel/ global kernel info / tuning
miscellaneous stuff
+ some architecture-specific controls
+ security (LSM) stuff
net/ networking stuff, for documentation look in:
<Documentation/networking/>
proc/ <empty>
sunrpc/ SUN Remote Procedure Call (NFS)
+user/ Per user namespace limits
vm/ memory management tuning
buffer and cache management
-user/ Per user per user namespace limits
+xen/ <undocumented>
=============== ===============================================================
-These are the subdirs I have on my system. There might be more
-or other subdirs in another setup. If you see another dir, I'd
-really like to hear about it :-)
+These are the subdirs I have on my system or have been discovered by
+searching through the source code. There might be more or other subdirs
+in another setup. If you see another dir, I'd really like to hear about
+it :-)
.. toctree::
:maxdepth: 1
diff --git a/Documentation/admin-guide/sysctl/kernel.rst b/Documentation/admin-guide/sysctl/kernel.rst
index d85d90f5d000..239da22c4e28 100644
--- a/Documentation/admin-guide/sysctl/kernel.rst
+++ b/Documentation/admin-guide/sysctl/kernel.rst
@@ -177,6 +177,7 @@ core_pattern
%E executable path
%c maximum size of core file by resource limit RLIMIT_CORE
%C CPU the task ran on
+ %F pidfd number
%<OTHER> both are dropped
======== ==========================================
@@ -212,6 +213,17 @@ pid>/``).
This value defaults to 0.
+core_sort_vma
+=============
+
+The default coredump writes VMAs in address order. By setting
+``core_sort_vma`` to 1, VMAs will be written from smallest size
+to largest size. This is known to break at least elfutils, but
+can be handy when dealing with very large (and truncated)
+coredumps where the more useful debugging details are included
+in the smaller VMAs.
+
+
core_uses_pid
=============
@@ -296,12 +308,30 @@ kernel panic). This will output the contents of the ftrace buffers to
the console. This is very useful for capturing traces that lead to
crashes and outputting them to a serial console.
-= ===================================================
-0 Disabled (default).
-1 Dump buffers of all CPUs.
-2 Dump the buffer of the CPU that triggered the oops.
-= ===================================================
+======================= ===========================================
+0 Disabled (default).
+1 Dump buffers of all CPUs.
+2(orig_cpu) Dump the buffer of the CPU that triggered the
+ oops.
+<instance> Dump the specific instance buffer on all CPUs.
+<instance>=2(orig_cpu) Dump the specific instance buffer on the CPU
+ that triggered the oops.
+======================= ===========================================
+
+Multiple instance dump is also supported, and instances are separated
+by commas. If global buffer also needs to be dumped, please specify
+the dump mode (1/2/orig_cpu) first for global buffer.
+
+So for example to dump "foo" and "bar" instance buffer on all CPUs,
+user can::
+ echo "foo,bar" > /proc/sys/kernel/ftrace_dump_on_oops
+
+To dump global buffer and "foo" instance buffer on all
+CPUs along with the "bar" instance buffer on CPU that triggered the
+oops, user can::
+
+ echo "1,foo,bar=2" > /proc/sys/kernel/ftrace_dump_on_oops
ftrace_enabled, stack_tracer_enabled
====================================
@@ -367,13 +397,14 @@ a hung task is detected.
hung_task_panic
===============
-Controls the kernel's behavior when a hung task is detected.
+When set to a non-zero value, a kernel panic will be triggered if the
+number of hung tasks found during a single scan reaches this value.
This file shows up if ``CONFIG_DETECT_HUNG_TASK`` is enabled.
-= =================================================
+= =======================================================
0 Continue operation. This is the default behavior.
-1 Panic immediately.
-= =================================================
+N Panic when N hung tasks are found during a single scan.
+= =======================================================
hung_task_check_count
@@ -383,6 +414,20 @@ The upper bound on the number of tasks that are checked.
This file shows up if ``CONFIG_DETECT_HUNG_TASK`` is enabled.
+hung_task_detect_count
+======================
+
+Indicates the total number of tasks that have been detected as hung since
+the system boot.
+
+This file shows up if ``CONFIG_DETECT_HUNG_TASK`` is enabled.
+
+hung_task_sys_info
+==================
+A comma separated list of extra system information to be dumped when
+hung task is detected, for example, "tasks,mem,timers,locks,...".
+Refer 'panic_sys_info' section below for more details.
+
hung_task_timeout_secs
======================
@@ -436,7 +481,7 @@ ignore-unaligned-usertrap
On architectures where unaligned accesses cause traps, and where this
feature is supported (``CONFIG_SYSCTL_ARCH_UNALIGN_NO_WARN``;
-currently, ``arc``, ``ia64`` and ``loongarch``), controls whether all
+currently, ``arc``, ``parisc`` and ``loongarch``), controls whether all
unaligned traps are logged.
= =============================================================
@@ -445,11 +490,46 @@ unaligned traps are logged.
setting.
= =============================================================
-See also `unaligned-trap`_ and `unaligned-dump-stack`_. On ``ia64``,
-this allows system administrators to override the
-``IA64_THREAD_UAC_NOPRINT`` ``prctl`` and avoid logs being flooded.
+See also `unaligned-trap`_.
+
+io_uring_disabled
+=================
+
+Prevents all processes from creating new io_uring instances. Enabling this
+shrinks the kernel's attack surface.
+
+= ======================================================================
+0 All processes can create io_uring instances as normal. This is the
+ default setting.
+1 io_uring creation is disabled (io_uring_setup() will fail with
+ -EPERM) for unprivileged processes not in the io_uring_group group.
+ Existing io_uring instances can still be used. See the
+ documentation for io_uring_group for more information.
+2 io_uring creation is disabled for all processes. io_uring_setup()
+ always fails with -EPERM. Existing io_uring instances can still be
+ used.
+= ======================================================================
+
+
+io_uring_group
+==============
+
+When io_uring_disabled is set to 1, a process must either be
+privileged (CAP_SYS_ADMIN) or be in the io_uring_group group in order
+to create an io_uring instance. If io_uring_group is set to -1 (the
+default), only processes with the CAP_SYS_ADMIN capability may create
+io_uring instances.
+kernel_sys_info
+===============
+A comma separated list of extra system information to be dumped when
+soft/hard lockup is detected, for example, "tasks,mem,timers,locks,...".
+Refer 'panic_sys_info' section below for more details.
+
+It serves as the default kernel control knob, which will take effect
+when a kernel module calls sys_info() with parameter==0.
+
kexec_load_disabled
===================
@@ -511,6 +591,11 @@ if leaking kernel pointer values to unprivileged users is a concern.
When ``kptr_restrict`` is set to 2, kernel pointers printed using
%pK will be replaced with 0s regardless of privileges.
+softlockup_sys_info & hardlockup_sys_info
+=========================================
+A comma separated list of extra system information to be dumped when
+soft/hard lockup is detected, for example, "tasks,mem,timers,locks,...".
+Refer 'panic_sys_info' section below for more details.
modprobe
========
@@ -568,6 +653,9 @@ default (``MSGMNB``).
``msgmni`` is the maximum number of IPC queues. 32000 by default
(``MSGMNI``).
+All of these parameters are set per ipc namespace. The maximum number of bytes
+in POSIX message queues is limited by ``RLIMIT_MSGQUEUE``. This limit is
+respected hierarchically in the each user namespace.
msg_next_id, sem_next_id, and shm_next_id (System V IPC)
========================================================
@@ -822,8 +910,9 @@ bit 1 print system memory info
bit 2 print timer info
bit 3 print locks info if ``CONFIG_LOCKDEP`` is on
bit 4 print ftrace buffer
-bit 5 print all printk messages in buffer
+bit 5 replay all kernel messages on consoles at the end of panic
bit 6 print all CPUs backtrace (if available in the arch)
+bit 7 print only tasks in uninterruptible (blocked) state
===== ============================================
So for example to print tasks and memory info on panic, user can::
@@ -831,6 +920,24 @@ So for example to print tasks and memory info on panic, user can::
echo 3 > /proc/sys/kernel/panic_print
+panic_sys_info
+==============
+
+A comma separated list of extra information to be dumped on panic,
+for example, "tasks,mem,timers,...". It is a human readable alternative
+to 'panic_print'. Possible values are:
+
+============= ===================================================
+tasks print all tasks info
+mem print system memory info
+timers print timers info
+locks print locks info if CONFIG_LOCKDEP is on
+ftrace print ftrace buffer
+all_bt print all CPUs backtrace (if available in the arch)
+blocked_tasks print only tasks in uninterruptible (blocked) state
+============= ===================================================
+
+
panic_on_rcu_stall
==================
@@ -941,16 +1048,31 @@ enabled, otherwise writing to this file will return ``-EBUSY``.
The default value is 8.
-perf_user_access (arm64 only)
-=================================
+perf_user_access (arm64 and riscv only)
+=======================================
+
+Controls user space access for reading perf event counters.
+
+* for arm64
+ The default value is 0 (access disabled).
+
+ When set to 1, user space can read performance monitor counter registers
+ directly.
-Controls user space access for reading perf event counters. When set to 1,
-user space can read performance monitor counter registers directly.
+ See Documentation/arch/arm64/perf.rst for more information.
-The default value is 0 (access disabled).
+* for riscv
+ When set to 0, user space access is disabled.
-See Documentation/arm64/perf.rst for more information.
+ The default value is 1, user space can read performance monitor counter
+ registers through perf, any direct access without perf intervention will trigger
+ an illegal instruction.
+ When set to 2, which enables legacy mode (user space has direct access to cycle
+ and insret CSRs only). Note that this legacy value is deprecated and will be
+ removed once all user space applications are fixed.
+
+ Note that the time CSR is always directly accessible to all modes.
pid_max
=======
@@ -1023,7 +1145,8 @@ printk_ratelimit_burst
While long term we enforce one message per `printk_ratelimit`_
seconds, we do allow a burst of messages to pass through.
``printk_ratelimit_burst`` specifies the number of messages we can
-send before ratelimiting kicks in.
+send before ratelimiting kicks in. After `printk_ratelimit`_ seconds
+have elapsed, another burst of messages may be sent.
The default value is 10 messages.
@@ -1134,7 +1257,8 @@ automatically on platforms where it can run (that is,
platforms with asymmetric CPU topologies and having an Energy
Model available). If your platform happens to meet the
requirements for EAS but you do not want to use it, change
-this value to 0.
+this value to 0. On Non-EAS platforms, write operation fails and
+read doesn't return anything.
task_delayacct
===============
@@ -1228,15 +1352,20 @@ are doing anyway :)
shmall
======
-This parameter sets the total amount of shared memory pages that
-can be used system wide. Hence, ``shmall`` should always be at least
-``ceil(shmmax/PAGE_SIZE)``.
+This parameter sets the total amount of shared memory pages that can be used
+inside ipc namespace. The shared memory pages counting occurs for each ipc
+namespace separately and is not inherited. Hence, ``shmall`` should always be at
+least ``ceil(shmmax/PAGE_SIZE)``.
If you are not sure what the default ``PAGE_SIZE`` is on your Linux
system, you can run the following command::
# getconf PAGE_SIZE
+To reduce or disable the ability to allocate shared memory, you must create a
+new ipc namespace, set this parameter to the required value and prohibit the
+creation of a new ipc namespace in the current user namespace or cgroups can
+be used.
shmmax
======
@@ -1372,7 +1501,7 @@ stack_erasing
=============
This parameter can be used to control kernel stack erasing at the end
-of syscalls for kernels built with ``CONFIG_GCC_PLUGIN_STACKLEAK``.
+of syscalls for kernels built with ``CONFIG_KSTACK_ERASE``.
That erasing reduces the information which kernel stack leak bugs
can reveal and blocks some uninitialized stack variable attacks.
@@ -1380,7 +1509,7 @@ The tradeoff is the performance impact: on a single CPU system kernel
compilation sees a 1% slowdown, other systems and workloads may vary.
= ====================================================================
-0 Kernel stack erasing is disabled, STACKLEAK_METRICS are not updated.
+0 Kernel stack erasing is disabled, KSTACK_ERASE_METRICS are not updated.
1 Kernel stack erasing is enabled (default), it is performed before
returning to the userspace at the end of syscalls.
= ====================================================================
@@ -1462,6 +1591,13 @@ constant ``FUTEX_TID_MASK`` (0x3fffffff).
If a value outside of this range is written to ``threads-max`` an
``EINVAL`` error occurs.
+timer_migration
+===============
+
+When set to a non-zero value, attempt to migrate timers away from idle cpus to
+allow them to remain in low power states longer.
+
+Default is set (1).
traceoff_on_warning
===================
@@ -1490,22 +1626,6 @@ See Documentation/admin-guide/kernel-parameters.rst and
Documentation/trace/boottime-trace.rst.
-.. _unaligned-dump-stack:
-
-unaligned-dump-stack (ia64)
-===========================
-
-When logging unaligned accesses, controls whether the stack is
-dumped.
-
-= ===================================================
-0 Do not dump the stack. This is the default setting.
-1 Dump the stack.
-= ===================================================
-
-See also `ignore-unaligned-usertrap`_.
-
-
unaligned-trap
==============
diff --git a/Documentation/admin-guide/sysctl/net.rst b/Documentation/admin-guide/sysctl/net.rst
index 466c560b0c30..369a738a6819 100644
--- a/Documentation/admin-guide/sysctl/net.rst
+++ b/Documentation/admin-guide/sysctl/net.rst
@@ -71,6 +71,8 @@ two flavors of JITs, the newer eBPF JIT currently supported on:
- s390x
- riscv64
- riscv32
+ - loongarch64
+ - arc
And the older cBPF JIT supported on the following archs:
@@ -205,6 +207,19 @@ Will increase power usage.
Default: 0 (off)
+mem_pcpu_rsv
+------------
+
+Per-cpu reserved forward alloc cache size in page units. Default 1MB per CPU.
+
+bypass_prot_mem
+---------------
+
+Skip charging socket buffers to the global per-protocol memory
+accounting controlled by net.ipv4.tcp_mem, net.ipv4.udp_mem, etc.
+
+Default: 0 (off)
+
rmem_default
------------
@@ -215,6 +230,8 @@ rmem_max
The maximum receive socket buffer size in bytes.
+Default: 4194304
+
rps_default_mask
----------------
@@ -240,6 +257,8 @@ wmem_max
The maximum send socket buffer size in bytes.
+Default: 4194304
+
message_burst and message_cost
------------------------------
@@ -336,15 +355,18 @@ skb_defer_max
-------------
Max size (in skbs) of the per-cpu list of skbs being freed
-by the cpu which allocated them. Used by TCP stack so far.
+by the cpu which allocated them.
-Default: 64
+Default: 128
optmem_max
----------
Maximum ancillary buffer size allowed per socket. Ancillary data is a sequence
-of struct cmsghdr structures with appended data.
+of struct cmsghdr structures with appended data. TCP tx zerocopy also uses
+optmem_max as a limit for its internal structures.
+
+Default : 128 KB
fb_tunnels_only_for_init_net
----------------------------
@@ -386,12 +408,29 @@ Default : 0 (for compatibility reasons)
txrehash
--------
-Controls default hash rethink behaviour on listening socket when SO_TXREHASH
-option is set to SOCK_TXREHASH_DEFAULT (i. e. not overridden by setsockopt).
+Controls default hash rethink behaviour on socket when SO_TXREHASH option is set
+to SOCK_TXREHASH_DEFAULT (i. e. not overridden by setsockopt).
If set to 1 (default), hash rethink is performed on listening socket.
If set to 0, hash rethink is not performed.
+txq_reselection_ms
+------------------
+
+Controls how often (in ms) a busy connected flow can select another tx queue.
+
+A resection is desirable when/if user thread has migrated and XPS
+would select a different queue. Same can occur without XPS
+if the flow hash has changed.
+
+But switching txq can introduce reorders, especially if the
+old queue is under high pressure. Modern TCP stacks deal
+well with reorders if they happen not too often.
+
+To disable this feature, set the value to 0.
+
+Default : 1000
+
gro_normal_batch
----------------
diff --git a/Documentation/admin-guide/sysctl/vm.rst b/Documentation/admin-guide/sysctl/vm.rst
index 45ba1f4dc004..4d71211fdad8 100644
--- a/Documentation/admin-guide/sysctl/vm.rst
+++ b/Documentation/admin-guide/sysctl/vm.rst
@@ -28,6 +28,7 @@ Currently, these files are in /proc/sys/vm:
- compact_memory
- compaction_proactiveness
- compact_unevictable_allowed
+- defrag_mode
- dirty_background_bytes
- dirty_background_ratio
- dirty_bytes
@@ -36,6 +37,7 @@ Currently, these files are in /proc/sys/vm:
- dirtytime_expire_seconds
- dirty_writeback_centisecs
- drop_caches
+- enable_soft_offline
- extfrag_threshold
- highmem_is_dirtyable
- hugetlb_shm_group
@@ -43,6 +45,7 @@ Currently, these files are in /proc/sys/vm:
- legacy_va_layout
- lowmem_reserve_ratio
- max_map_count
+- mem_profiling (only if CONFIG_MEM_ALLOC_PROFILING=y)
- memory_failure_early_kill
- memory_failure_recovery
- min_free_kbytes
@@ -72,6 +75,7 @@ Currently, these files are in /proc/sys/vm:
- unprivileged_userfaultfd
- user_reserve_kbytes
- vfs_cache_pressure
+- vfs_cache_pressure_denom
- watermark_boost_factor
- watermark_scale_factor
- zone_reclaim_mode
@@ -128,6 +132,12 @@ to latency spikes in unsuspecting applications. The kernel employs
various heuristics to avoid wasting CPU cycles if it detects that
proactive compaction is not being effective.
+Setting the value above 80 will, in addition to lowering the acceptable level
+of fragmentation, make the compaction code more sensitive to increases in
+fragmentation, i.e. compaction will trigger more often, but reduce
+fragmentation by a smaller amount.
+This makes the fragmentation level more stable over time.
+
Be careful when setting it to extreme values like 100, as that may
cause excessive background compaction activity.
@@ -143,6 +153,14 @@ On CONFIG_PREEMPT_RT the default value is 0 in order to avoid a page fault, due
to compaction, which would block the task from becoming active until the fault
is resolved.
+defrag_mode
+===========
+
+When set to 1, the page allocator tries harder to avoid fragmentation
+and maintain the ability to produce huge pages / higher-order pages.
+
+It is recommended to enable this right after boot, as fragmentation,
+once it occurred, can be long-lasting or even permanent.
dirty_background_bytes
======================
@@ -266,6 +284,43 @@ used::
These are informational only. They do not mean that anything is wrong
with your system. To disable them, echo 4 (bit 2) into drop_caches.
+enable_soft_offline
+===================
+Correctable memory errors are very common on servers. Soft-offline is kernel's
+solution for memory pages having (excessive) corrected memory errors.
+
+For different types of page, soft-offline has different behaviors / costs.
+
+- For a raw error page, soft-offline migrates the in-use page's content to
+ a new raw page.
+
+- For a page that is part of a transparent hugepage, soft-offline splits the
+ transparent hugepage into raw pages, then migrates only the raw error page.
+ As a result, user is transparently backed by 1 less hugepage, impacting
+ memory access performance.
+
+- For a page that is part of a HugeTLB hugepage, soft-offline first migrates
+ the entire HugeTLB hugepage, during which a free hugepage will be consumed
+ as migration target. Then the original hugepage is dissolved into raw
+ pages without compensation, reducing the capacity of the HugeTLB pool by 1.
+
+It is user's call to choose between reliability (staying away from fragile
+physical memory) vs performance / capacity implications in transparent and
+HugeTLB cases.
+
+For all architectures, enable_soft_offline controls whether to soft offline
+memory pages. When set to 1, kernel attempts to soft offline the pages
+whenever it thinks needed. When set to 0, kernel returns EOPNOTSUPP to
+the request to soft offline the pages. Its default value is 1.
+
+It is worth mentioning that after setting enable_soft_offline to 0, the
+following requests to soft offline pages will not be performed:
+
+- Request to soft offline pages from RAS Correctable Errors Collector.
+
+- On ARM, the request to soft offline pages from GHES driver.
+
+- On PARISC, the request to soft offline pages from Page Deallocation Table.
extfrag_threshold
=================
@@ -410,8 +465,8 @@ The minimum value is 1 (1/1 -> 100%). The value less than 1 completely
disables protection of the pages.
-max_map_count:
-==============
+max_map_count
+=============
This file contains the maximum number of memory map areas a process
may have. Memory map areas are used as a side-effect of calling
@@ -425,8 +480,23 @@ e.g., up to one or two maps per allocation.
The default value is 65530.
-memory_failure_early_kill:
-==========================
+mem_profiling
+==============
+
+Enable memory profiling (when CONFIG_MEM_ALLOC_PROFILING=y)
+
+1: Enable memory profiling.
+
+0: Disable memory profiling.
+
+Enabling memory profiling introduces a small performance overhead for all
+memory allocations.
+
+The default value depends on CONFIG_MEM_ALLOC_PROFILING_ENABLED_BY_DEFAULT.
+
+
+memory_failure_early_kill
+=========================
Control how to kill processes when uncorrected memory error (typically
a 2bit error in a memory module) is detected in the background by hardware
@@ -742,8 +812,8 @@ overcommit_memory
This value contains a flag that enables memory overcommitment.
-When this flag is 0, the kernel attempts to estimate the amount
-of free memory left when userspace requests more memory.
+When this flag is 0, the kernel compares the userspace memory request
+size against total memory plus swap and rejects obvious overcommits.
When this flag is 1, the kernel pretends there is always enough
memory until it actually runs out.
@@ -954,19 +1024,28 @@ vfs_cache_pressure
This percentage value controls the tendency of the kernel to reclaim
the memory which is used for caching of directory and inode objects.
-At the default value of vfs_cache_pressure=100 the kernel will attempt to
-reclaim dentries and inodes at a "fair" rate with respect to pagecache and
-swapcache reclaim. Decreasing vfs_cache_pressure causes the kernel to prefer
-to retain dentry and inode caches. When vfs_cache_pressure=0, the kernel will
-never reclaim dentries and inodes due to memory pressure and this can easily
-lead to out-of-memory conditions. Increasing vfs_cache_pressure beyond 100
-causes the kernel to prefer to reclaim dentries and inodes.
+At the default value of vfs_cache_pressure=vfs_cache_pressure_denom the kernel
+will attempt to reclaim dentries and inodes at a "fair" rate with respect to
+pagecache and swapcache reclaim. Decreasing vfs_cache_pressure causes the
+kernel to prefer to retain dentry and inode caches. When vfs_cache_pressure=0,
+the kernel will never reclaim dentries and inodes due to memory pressure and
+this can easily lead to out-of-memory conditions. Increasing vfs_cache_pressure
+beyond vfs_cache_pressure_denom causes the kernel to prefer to reclaim dentries
+and inodes.
-Increasing vfs_cache_pressure significantly beyond 100 may have negative
-performance impact. Reclaim code needs to take various locks to find freeable
-directory and inode objects. With vfs_cache_pressure=1000, it will look for
-ten times more freeable objects than there are.
+Increasing vfs_cache_pressure significantly beyond vfs_cache_pressure_denom may
+have negative performance impact. Reclaim code needs to take various locks to
+find freeable directory and inode objects. When vfs_cache_pressure equals
+(10 * vfs_cache_pressure_denom), it will look for ten times more freeable
+objects than there are.
+
+Note: This setting should always be used together with vfs_cache_pressure_denom.
+
+vfs_cache_pressure_denom
+========================
+Defaults to 100 (minimum allowed value). Requires corresponding
+vfs_cache_pressure setting to take effect.
watermark_boost_factor
======================
diff --git a/Documentation/admin-guide/sysrq.rst b/Documentation/admin-guide/sysrq.rst
index 51906e47327b..9c7aa817adc7 100644
--- a/Documentation/admin-guide/sysrq.rst
+++ b/Documentation/admin-guide/sysrq.rst
@@ -49,37 +49,46 @@ How do I use the magic SysRq key?
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
On x86
- You press the key combo :kbd:`ALT-SysRq-<command key>`.
+ You press the key combo `ALT-SysRq-<command key>`.
.. note::
Some
keyboards may not have a key labeled 'SysRq'. The 'SysRq' key is
also known as the 'Print Screen' key. Also some keyboards cannot
handle so many keys being pressed at the same time, so you might
- have better luck with press :kbd:`Alt`, press :kbd:`SysRq`,
- release :kbd:`SysRq`, press :kbd:`<command key>`, release everything.
+ have better luck with press `Alt`, press `SysRq`,
+ release `SysRq`, press `<command key>`, release everything.
On SPARC
- You press :kbd:`ALT-STOP-<command key>`, I believe.
+ You press `ALT-STOP-<command key>`, I believe.
On the serial console (PC style standard serial ports only)
You send a ``BREAK``, then within 5 seconds a command key. Sending
``BREAK`` twice is interpreted as a normal BREAK.
On PowerPC
- Press :kbd:`ALT - Print Screen` (or :kbd:`F13`) - :kbd:`<command key>`.
- :kbd:`Print Screen` (or :kbd:`F13`) - :kbd:`<command key>` may suffice.
+ Press `ALT - Print Screen` (or `F13`) - `<command key>`.
+ `Print Screen` (or `F13`) - `<command key>` may suffice.
On other
If you know of the key combos for other architectures, please
submit a patch to be included in this section.
On all
- Write a character to /proc/sysrq-trigger. e.g.::
+ Write a single character to /proc/sysrq-trigger.
+ Only the first character is processed, the rest of the string is
+ ignored. However, it is not recommended to write any extra characters
+ as the behavior is undefined and might change in the future versions.
+ E.g.::
echo t > /proc/sysrq-trigger
-The :kbd:`<command key>` is case sensitive.
+ Alternatively, write multiple characters prepended by underscore.
+ This way, all characters will be processed. E.g.::
+
+ echo _reisub > /proc/sysrq-trigger
+
+The `<command key>` is case sensitive.
What are the 'command' keys?
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -152,6 +161,8 @@ Command Function
will be printed to your console. (``0``, for example would make
it so that only emergency messages like PANICs or OOPSes would
make it to your console.)
+
+``R`` Replay the kernel log messages on consoles.
=========== ===================================================================
Okay, so what can I use them for?
@@ -202,14 +213,21 @@ processes.
"just thaw ``it(j)``" is useful if your system becomes unresponsive due to a
frozen (probably root) filesystem via the FIFREEZE ioctl.
+``Replay logs(R)`` is useful to view the kernel log messages when system is hung
+or you are not able to use dmesg command to view the messages in printk buffer.
+User may have to press the key combination multiple times if console system is
+busy. If it is completely locked up, then messages won't be printed. Output
+messages depend on current console loglevel, which can be modified using
+sysrq[0-9] (see above).
+
Sometimes SysRq seems to get 'stuck' after using it, what can I do?
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
When this happens, try tapping shift, alt and control on both sides of the
keyboard, and hitting an invalid sysrq sequence again. (i.e., something like
-:kbd:`alt-sysrq-z`).
+`alt-sysrq-z`).
-Switching to another virtual console (:kbd:`ALT+Fn`) and then back again
+Switching to another virtual console (`ALT+Fn`) and then back again
should also help.
I hit SysRq, but nothing seems to happen, what's wrong?
@@ -272,7 +290,7 @@ exception the header line from the sysrq command is passed to all console
consumers as if the current loglevel was maximum. If only the header
is emitted it is almost certain that the kernel loglevel is too low.
Should you require the output on the console channel then you will need
-to temporarily up the console loglevel using :kbd:`alt-sysrq-8` or::
+to temporarily up the console loglevel using `alt-sysrq-8` or::
echo 8 > /proc/sysrq-trigger
diff --git a/Documentation/admin-guide/tainted-kernels.rst b/Documentation/admin-guide/tainted-kernels.rst
index 92a8a07f5c43..ed1f8f1e86c5 100644
--- a/Documentation/admin-guide/tainted-kernels.rst
+++ b/Documentation/admin-guide/tainted-kernels.rst
@@ -34,7 +34,7 @@ name of the command ('Comm:') that triggered the event::
You'll find a 'Not tainted: ' there if the kernel was not tainted at the
time of the event; if it was, then it will print 'Tainted: ' and characters
-either letters or blanks. In above example it looks like this::
+either letters or blanks. In the example above it looks like this::
Tainted: P W O
@@ -52,7 +52,7 @@ At runtime, you can query the tainted state by reading
tainted; any other number indicates the reasons why it is. The easiest way to
decode that number is the script ``tools/debugging/kernel-chktaint``, which your
distribution might ship as part of a package called ``linux-tools`` or
-``kernel-tools``; if it doesn't you can download the script from
+``kernel-tools``; if it doesn't, you can download the script from
`git.kernel.org <https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/plain/tools/debugging/kernel-chktaint>`_
and execute it with ``sh kernel-chktaint``, which would print something like
this on the machine that had the statements in the logs that were quoted earlier::
@@ -101,6 +101,7 @@ Bit Log Number Reason that got the kernel tainted
16 _/X 65536 auxiliary taint, defined for and used by distros
17 _/T 131072 kernel was built with the struct randomization plugin
18 _/N 262144 an in-kernel test has been run
+ 19 _/J 524288 userspace used a mutating debug operation in fwctl
=== === ====== ========================================================
Note: The character ``_`` is representing a blank in this table to make reading
@@ -182,3 +183,9 @@ More detailed explanation for tainting
produce extremely unusual kernel structure layouts (even performance
pathological ones), which is important to know when debugging. Set at
build time.
+
+ 18) ``N`` if an in-kernel test, such as a KUnit test, has been run.
+
+ 19) ``J`` if userspace opened /dev/fwctl/* and performed a FWTCL_RPC_DEBUG_WRITE
+ to use the devices debugging features. Device debugging features could
+ cause the device to malfunction in undefined ways.
diff --git a/Documentation/admin-guide/thermal/index.rst b/Documentation/admin-guide/thermal/index.rst
index 193b7b01a87d..e48bc0a1951b 100644
--- a/Documentation/admin-guide/thermal/index.rst
+++ b/Documentation/admin-guide/thermal/index.rst
@@ -6,3 +6,4 @@ Thermal Subsystem
:maxdepth: 1
intel_powerclamp
+ intel_thermal_throttle
diff --git a/Documentation/admin-guide/thermal/intel_thermal_throttle.rst b/Documentation/admin-guide/thermal/intel_thermal_throttle.rst
new file mode 100644
index 000000000000..f4fbf9d5a4ec
--- /dev/null
+++ b/Documentation/admin-guide/thermal/intel_thermal_throttle.rst
@@ -0,0 +1,91 @@
+.. SPDX-License-Identifier: GPL-2.0
+.. include:: <isonum.txt>
+
+=======================================
+Intel thermal throttle events reporting
+=======================================
+
+:Author: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
+
+Introduction
+------------
+
+Intel processors have built in automatic and adaptive thermal monitoring
+mechanisms that force the processor to reduce its power consumption in order
+to operate within predetermined temperature limits.
+
+Refer to section "THERMAL MONITORING AND PROTECTION" in the "Intel® 64 and
+IA-32 Architectures Software Developer’s Manual Volume 3 (3A, 3B, 3C, & 3D):
+System Programming Guide" for more details.
+
+In general, there are two mechanisms to control the core temperature of the
+processor. They are called "Thermal Monitor 1 (TM1) and Thermal Monitor 2 (TM2)".
+
+The status of the temperature sensor that triggers the thermal monitor (TM1/TM2)
+is indicated through the "thermal status flag" and "thermal status log flag" in
+MSR_IA32_THERM_STATUS for core level and MSR_IA32_PACKAGE_THERM_STATUS for
+package level.
+
+Thermal Status flag, bit 0 — When set, indicates that the processor core
+temperature is currently at the trip temperature of the thermal monitor and that
+the processor power consumption is being reduced via either TM1 or TM2, depending
+on which is enabled. When clear, the flag indicates that the core temperature is
+below the thermal monitor trip temperature. This flag is read only.
+
+Thermal Status Log flag, bit 1 — When set, indicates that the thermal sensor has
+tripped since the last power-up or reset or since the last time that software
+cleared this flag. This flag is a sticky bit; once set it remains set until
+cleared by software or until a power-up or reset of the processor. The default
+state is clear.
+
+It is possible that when user reads MSR_IA32_THERM_STATUS or
+MSR_IA32_PACKAGE_THERM_STATUS, TM1/TM2 is not active. In this case,
+"Thermal Status flag" will read "0" and the "Thermal Status Log flag" will be set
+to show any previous "TM1/TM2" activation. But since it needs to be cleared by
+the software, it can't show the number of occurrences of "TM1/TM2" activations.
+
+Hence, Linux provides counters of how many times the "Thermal Status flag" was
+set. Also presents how long the "Thermal Status flag" was active in milliseconds.
+Using these counters, users can check if the performance was limited because of
+thermal events. It is recommended to read from sysfs instead of directly reading
+MSRs as the "Thermal Status Log flag" is reset by the driver to implement rate
+control.
+
+Sysfs Interface
+---------------
+
+Thermal throttling events are presented for each CPU under
+"/sys/devices/system/cpu/cpuX/thermal_throttle/", where "X" is the CPU number.
+
+All these counters are read-only. They can't be reset to 0. So, they can potentially
+overflow after reaching the maximum 64 bit unsigned integer.
+
+``core_throttle_count``
+ Shows the number of times "Thermal Status flag" changed from 0 to 1 for this
+ CPU since OS boot and thermal vector is initialized. This is a 64 bit counter.
+
+``package_throttle_count``
+ Shows the number of times "Thermal Status flag" changed from 0 to 1 for the
+ package containing this CPU since OS boot and thermal vector is initialized.
+ Package status is broadcast to all CPUs; all CPUs in the package increment
+ this count. This is a 64-bit counter.
+
+``core_throttle_max_time_ms``
+ Shows the maximum amount of time for which "Thermal Status flag" has been
+ set to 1 for this CPU at the core level since OS boot and thermal vector
+ is initialized.
+
+``package_throttle_max_time_ms``
+ Shows the maximum amount of time for which "Thermal Status flag" has been
+ set to 1 for the package containing this CPU since OS boot and thermal
+ vector is initialized.
+
+``core_throttle_total_time_ms``
+ Shows the cumulative time for which "Thermal Status flag" has been
+ set to 1 for this CPU for core level since OS boot and thermal vector
+ is initialized.
+
+``package_throttle_total_time_ms``
+ Shows the cumulative time for which "Thermal Status flag" has been set
+ to 1 for the package containing this CPU since OS boot and thermal vector
+ is initialized.
diff --git a/Documentation/admin-guide/thunderbolt.rst b/Documentation/admin-guide/thunderbolt.rst
index 2ed79f41a411..07303c1346fb 100644
--- a/Documentation/admin-guide/thunderbolt.rst
+++ b/Documentation/admin-guide/thunderbolt.rst
@@ -28,7 +28,7 @@ should be a userspace tool that handles all the low-level details, keeps
a database of the authorized devices and prompts users for new connections.
More details about the sysfs interface for Thunderbolt devices can be
-found in ``Documentation/ABI/testing/sysfs-bus-thunderbolt``.
+found in Documentation/ABI/testing/sysfs-bus-thunderbolt.
Those users who just want to connect any device without any sort of
manual work can add following line to
@@ -203,10 +203,10 @@ host controller or a device, it is important that the firmware can be
upgraded to the latest where possible bugs in it have been fixed.
Typically OEMs provide this firmware from their support site.
-There is also a central site which has links where to download firmware
-for some machines:
-
- `Thunderbolt Updates <https://thunderbolttechnology.net/updates>`_
+Currently, recommended method of updating firmware is through "fwupd" tool.
+It uses LVFS (Linux Vendor Firmware Service) portal by default to get the
+latest firmware from hardware vendors and updates connected devices if found
+compatible. For details refer to: https://github.com/fwupd/fwupd.
Before you upgrade firmware on a device, host or retimer, please make
sure it is a suitable upgrade. Failing to do that may render the device
@@ -215,18 +215,40 @@ tools!
Host NVM upgrade on Apple Macs is not supported.
-Once the NVM image has been downloaded, you need to plug in a
-Thunderbolt device so that the host controller appears. It does not
-matter which device is connected (unless you are upgrading NVM on a
-device - then you need to connect that particular device).
+Fwupd is installed by default. If you don't have it on your system, simply
+use your distro package manager to get it.
+
+To see possible updates through fwupd, you need to plug in a Thunderbolt
+device so that the host controller appears. It does not matter which
+device is connected (unless you are upgrading NVM on a device - then you
+need to connect that particular device).
Note an OEM-specific method to power the controller up ("force power") may
be available for your system in which case there is no need to plug in a
Thunderbolt device.
-After that we can write the firmware to the non-active parts of the NVM
-of the host or device. As an example here is how Intel NUC6i7KYK (Skull
-Canyon) Thunderbolt controller NVM is upgraded::
+Updating firmware using fwupd is straightforward - refer to official
+readme on fwupd github.
+
+If firmware image is written successfully, the device shortly disappears.
+Once it comes back, the driver notices it and initiates a full power
+cycle. After a while device appears again and this time it should be
+fully functional.
+
+Device of interest should display new version under "Current version"
+and "Update State: Success" in fwupd's interface.
+
+Upgrading firmware manually
+---------------------------------------------------------------
+If possible, use fwupd to updated the firmware. However, if your device OEM
+has not uploaded the firmware to LVFS, but it is available for download
+from their side, you can use method below to directly upgrade the
+firmware.
+
+Manual firmware update can be done with 'dd' tool. To update firmware
+using this method, you need to write it to the non-active parts of NVM
+of the host or device. Example on how to update Intel NUC6i7KYK
+(Skull Canyon) Thunderbolt controller NVM::
# dd if=KYK_TBT_FW_0018.bin of=/sys/bus/thunderbolt/devices/0-0/nvm_non_active0/nvmem
@@ -235,10 +257,8 @@ upgrade process as follows::
# echo 1 > /sys/bus/thunderbolt/devices/0-0/nvm_authenticate
-If no errors are returned, the host controller shortly disappears. Once
-it comes back the driver notices it and initiates a full power cycle.
-After a while the host controller appears again and this time it should
-be fully functional.
+If no errors are returned, device should behave as described in previous
+section.
We can verify that the new NVM firmware is active by running the following
commands::
@@ -296,6 +316,39 @@ information is missing.
To recover from this mode, one needs to flash a valid NVM image to the
host controller in the same way it is done in the previous chapter.
+Tunneling events
+----------------
+The driver sends ``KOBJ_CHANGE`` events to userspace when there is a
+tunneling change in the ``thunderbolt_domain``. The notification carries
+following environment variables::
+
+ TUNNEL_EVENT=<EVENT>
+ TUNNEL_DETAILS=0:12 <-> 1:20 (USB3)
+
+Possible values for ``<EVENT>`` are:
+
+ activated
+ The tunnel was activated (created).
+
+ changed
+ There is a change in this tunnel. For example bandwidth allocation was
+ changed.
+
+ deactivated
+ The tunnel was torn down.
+
+ low bandwidth
+ The tunnel is not getting optimal bandwidth.
+
+ insufficient bandwidth
+ There is not enough bandwidth for the current tunnel requirements.
+
+The ``TUNNEL_DETAILS`` is only provided if the tunnel is known. For
+example, in case of Firmware Connection Manager this is missing or does
+not provide full tunnel information. In case of Software Connection Manager
+this includes full tunnel details. The format currently matches what the
+driver uses when logging. This may change over time.
+
Networking over Thunderbolt cable
---------------------------------
Thunderbolt technology allows software communication between two hosts
@@ -325,12 +378,7 @@ Forcing power
Many OEMs include a method that can be used to force the power of a
Thunderbolt controller to an "On" state even if nothing is connected.
If supported by your machine this will be exposed by the WMI bus with
-a sysfs attribute called "force_power".
-
-For example the intel-wmi-thunderbolt driver exposes this attribute in:
- /sys/bus/wmi/devices/86CCFD48-205E-4A77-9C48-2021CBEDE341/force_power
-
- To force the power to on, write 1 to this attribute file.
- To disable force power, write 0 to this attribute file.
+a sysfs attribute called "force_power", see
+Documentation/ABI/testing/sysfs-platform-intel-wmi-thunderbolt for details.
Note: it's currently not possible to query the force power state of a platform.
diff --git a/Documentation/admin-guide/verify-bugs-and-bisect-regressions.rst b/Documentation/admin-guide/verify-bugs-and-bisect-regressions.rst
new file mode 100644
index 000000000000..d83601f2a459
--- /dev/null
+++ b/Documentation/admin-guide/verify-bugs-and-bisect-regressions.rst
@@ -0,0 +1,2222 @@
+.. SPDX-License-Identifier: (GPL-2.0+ OR CC-BY-4.0)
+.. [see the bottom of this file for redistribution information]
+
+=========================================
+How to verify bugs and bisect regressions
+=========================================
+
+This document describes how to check if some Linux kernel problem occurs in code
+currently supported by developers -- to then explain how to locate the change
+causing the issue, if it is a regression (e.g. did not happen with earlier
+versions).
+
+The text aims at people running kernels from mainstream Linux distributions on
+commodity hardware who want to report a kernel bug to the upstream Linux
+developers. Despite this intent, the instructions work just as well for users
+who are already familiar with building their own kernels: they help avoid
+mistakes occasionally made even by experienced developers.
+
+..
+ Note: if you see this note, you are reading the text's source file. You
+ might want to switch to a rendered version: it makes it a lot easier to
+ read and navigate this document -- especially when you want to look something
+ up in the reference section, then jump back to where you left off.
+..
+ Find the latest rendered version of this text here:
+ https://docs.kernel.org/admin-guide/verify-bugs-and-bisect-regressions.html
+
+The essence of the process (aka 'TL;DR')
+========================================
+
+*[If you are new to building or bisecting Linux, ignore this section and head
+over to the* ':ref:`step-by-step guide <introguide_bissbs>`' *below. It utilizes
+the same commands as this section while describing them in brief fashion. The
+steps are nevertheless easy to follow and together with accompanying entries
+in a reference section mention many alternatives, pitfalls, and additional
+aspects, all of which might be essential in your present case.]*
+
+**In case you want to check if a bug is present in code currently supported by
+developers**, execute just the *preparations* and *segment 1*; while doing so,
+consider the newest Linux kernel you regularly use to be the 'working' kernel.
+In the following example that's assumed to be 6.0, which is why its sources
+will be used to prepare the .config file.
+
+**In case you face a regression**, follow the steps at least till the end of
+*segment 2*. Then you can submit a preliminary report -- or continue with
+*segment 3*, which describes how to perform a bisection needed for a
+full-fledged regression report. In the following example 6.0.13 is assumed to be
+the 'working' kernel and 6.1.5 to be the first 'broken', which is why 6.0
+will be considered the 'good' release and used to prepare the .config file.
+
+* **Preparations**: set up everything to build your own kernels::
+
+ # * Remove any software that depends on externally maintained kernel modules
+ # or builds any automatically during bootup.
+ # * Ensure Secure Boot permits booting self-compiled Linux kernels.
+ # * If you are not already running the 'working' kernel, reboot into it.
+ # * Install compilers and everything else needed for building Linux.
+ # * Ensure to have 15 Gigabyte free space in your home directory.
+ git clone -o mainline --no-checkout \
+ https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git ~/linux/
+ cd ~/linux/
+ git remote add -t master stable \
+ https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
+ git switch --detach v6.0
+ # * Hint: if you used an existing clone, ensure no stale .config is around.
+ make olddefconfig
+ # * Ensure the former command picked the .config of the 'working' kernel.
+ # * Connect external hardware (USB keys, tokens, ...), start a VM, bring up
+ # VPNs, mount network shares, and briefly try the feature that is broken.
+ yes '' | make localmodconfig
+ ./scripts/config --set-str CONFIG_LOCALVERSION '-local'
+ ./scripts/config -e CONFIG_LOCALVERSION_AUTO
+ # * Note, when short on storage space, check the guide for an alternative:
+ ./scripts/config -d DEBUG_INFO_NONE -e KALLSYMS_ALL -e DEBUG_KERNEL \
+ -e DEBUG_INFO -e DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT -e KALLSYMS
+ # * Hint: at this point you might want to adjust the build configuration;
+ # you'll have to, if you are running Debian.
+ make olddefconfig
+ cp .config ~/kernel-config-working
+
+* **Segment 1**: build a kernel from the latest mainline codebase.
+
+ This among others checks if the problem was fixed already and which developers
+ later need to be told about the problem; in case of a regression, this rules
+ out a .config change as root of the problem.
+
+ a) Checking out latest mainline code::
+
+ cd ~/linux/
+ git switch --discard-changes --detach mainline/master
+
+ b) Build, install, and boot a kernel::
+
+ cp ~/kernel-config-working .config
+ make olddefconfig
+ make -j $(nproc --all)
+ # * Make sure there is enough disk space to hold another kernel:
+ df -h /boot/ /lib/modules/
+ # * Note: on Arch Linux, its derivatives and a few other distributions
+ # the following commands will do nothing at all or only part of the
+ # job. See the step-by-step guide for further details.
+ sudo make modules_install
+ command -v installkernel && sudo make install
+ # * Check how much space your self-built kernel actually needs, which
+ # enables you to make better estimates later:
+ du -ch /boot/*$(make -s kernelrelease)* | tail -n 1
+ du -sh /lib/modules/$(make -s kernelrelease)/
+ # * Hint: the output of the following command will help you pick the
+ # right kernel from the boot menu:
+ make -s kernelrelease | tee -a ~/kernels-built
+ reboot
+ # * Once booted, ensure you are running the kernel you just built by
+ # checking if the output of the next two commands matches:
+ tail -n 1 ~/kernels-built
+ uname -r
+ cat /proc/sys/kernel/tainted
+
+ c) Check if the problem occurs with this kernel as well.
+
+* **Segment 2**: ensure the 'good' kernel is also a 'working' kernel.
+
+ This among others verifies the trimmed .config file actually works well, as
+ bisecting with it otherwise would be a waste of time:
+
+ a) Start by checking out the sources of the 'good' version::
+
+ cd ~/linux/
+ git switch --discard-changes --detach v6.0
+
+ b) Build, install, and boot a kernel as described earlier in *segment 1,
+ section b* -- just feel free to skip the 'du' commands, as you have a rough
+ estimate already.
+
+ c) Ensure the feature that regressed with the 'broken' kernel actually works
+ with this one.
+
+* **Segment 3**: perform and validate the bisection.
+
+ a) Retrieve the sources for your 'bad' version::
+
+ git remote set-branches --add stable linux-6.1.y
+ git fetch stable
+
+ b) Initialize the bisection::
+
+ cd ~/linux/
+ git bisect start
+ git bisect good v6.0
+ git bisect bad v6.1.5
+
+ c) Build, install, and boot a kernel as described earlier in *segment 1,
+ section b*.
+
+ In case building or booting the kernel fails for unrelated reasons, run
+ ``git bisect skip``. In all other outcomes, check if the regressed feature
+ works with the newly built kernel. If it does, tell Git by executing
+ ``git bisect good``; if it does not, run ``git bisect bad`` instead.
+
+ All three commands will make Git check out another commit; then re-execute
+ this step (e.g. build, install, boot, and test a kernel to then tell Git
+ the outcome). Do so again and again until Git shows which commit broke
+ things. If you run short of disk space during this process, check the
+ section 'Complementary tasks: cleanup during and after the process'
+ below.
+
+ d) Once your finished the bisection, put a few things away::
+
+ cd ~/linux/
+ git bisect log > ~/bisect-log
+ cp .config ~/bisection-config-culprit
+ git bisect reset
+
+ e) Try to verify the bisection result::
+
+ git switch --discard-changes --detach mainline/master
+ git revert --no-edit cafec0cacaca0
+ cp ~/kernel-config-working .config
+ ./scripts/config --set-str CONFIG_LOCALVERSION '-local-cafec0cacaca0-reverted'
+
+ This is optional, as some commits are impossible to revert. But if the
+ second command worked flawlessly, build, install, and boot one more kernel
+ kernel; just this time skip the first command copying the base .config file
+ over, as that already has been taken care off.
+
+* **Complementary tasks**: cleanup during and after the process.
+
+ a) To avoid running out of disk space during a bisection, you might need to
+ remove some kernels you built earlier. You most likely want to keep those
+ you built during segment 1 and 2 around for a while, but you will most
+ likely no longer need kernels tested during the actual bisection
+ (Segment 3 c). You can list them in build order using::
+
+ ls -ltr /lib/modules/*-local*
+
+ To then for example erase a kernel that identifies itself as
+ '6.0-rc1-local-gcafec0cacaca0', use this::
+
+ sudo rm -rf /lib/modules/6.0-rc1-local-gcafec0cacaca0
+ sudo kernel-install -v remove 6.0-rc1-local-gcafec0cacaca0
+ # * Note, on some distributions kernel-install is missing
+ # or does only part of the job.
+
+ b) If you performed a bisection and successfully validated the result, feel
+ free to remove all kernels built during the actual bisection (Segment 3 c);
+ the kernels you built earlier and later you might want to keep around for
+ a week or two.
+
+* **Optional task**: test a debug patch or a proposed fix later::
+
+ git fetch mainline
+ git switch --discard-changes --detach mainline/master
+ git apply /tmp/foobars-proposed-fix-v1.patch
+ cp ~/kernel-config-working .config
+ ./scripts/config --set-str CONFIG_LOCALVERSION '-local-foobars-fix-v1'
+
+ Build, install, and boot a kernel as described in *segment 1, section b* --
+ but this time omit the first command copying the build configuration over,
+ as that has been taken care of already.
+
+.. _introguide_bissbs:
+
+Step-by-step guide on how to verify bugs and bisect regressions
+===============================================================
+
+This guide describes how to set up your own Linux kernels for investigating bugs
+or regressions you intend to report. How far you want to follow the instructions
+depends on your issue:
+
+Execute all steps till the end of *segment 1* to **verify if your kernel problem
+is present in code supported by Linux kernel developers**. If it is, you are all
+set to report the bug -- unless it did not happen with earlier kernel versions,
+as then your want to at least continue with *segment 2* to **check if the issue
+qualifies as regression** which receive priority treatment. Depending on the
+outcome you then are ready to report a bug or submit a preliminary regression
+report; instead of the latter your could also head straight on and follow
+*segment 3* to **perform a bisection** for a full-fledged regression report
+developers are obliged to act upon.
+
+ :ref:`Preparations: set up everything to build your own kernels <introprep_bissbs>`.
+
+ :ref:`Segment 1: try to reproduce the problem with the latest codebase <introlatestcheck_bissbs>`.
+
+ :ref:`Segment 2: check if the kernels you build work fine <introworkingcheck_bissbs>`.
+
+ :ref:`Segment 3: perform a bisection and validate the result <introbisect_bissbs>`.
+
+ :ref:`Complementary tasks: cleanup during and after following this guide <introclosure_bissbs>`.
+
+ :ref:`Optional tasks: test reverts, patches, or later versions <introoptional_bissbs>`.
+
+The steps in each segment illustrate the important aspects of the process, while
+a comprehensive reference section holds additional details for almost all of the
+steps. The reference section sometimes also outlines alternative approaches,
+pitfalls, as well as problems that might occur at the particular step -- and how
+to get things rolling again.
+
+For further details on how to report Linux kernel issues or regressions check
+out Documentation/admin-guide/reporting-issues.rst, which works in conjunction
+with this document. It among others explains why you need to verify bugs with
+the latest 'mainline' kernel (e.g. versions like 6.0, 6.1-rc1, or 6.1-rc6),
+even if you face a problem with a kernel from a 'stable/longterm' series
+(say 6.0.13).
+
+For users facing a regression that document also explains why sending a
+preliminary report after segment 2 might be wise, as the regression and its
+culprit might be known already. For further details on what actually qualifies
+as a regression check out Documentation/admin-guide/reporting-regressions.rst.
+
+If you run into any problems while following this guide or have ideas how to
+improve it, :ref:`please let the kernel developers know <submit_improvements_vbbr>`.
+
+.. _introprep_bissbs:
+
+Preparations: set up everything to build your own kernels
+---------------------------------------------------------
+
+The following steps lay the groundwork for all further tasks.
+
+Note: the instructions assume you are building and testing on the same
+machine; if you want to compile the kernel on another system, check
+:ref:`Build kernels on a different machine <buildhost_bis>` below.
+
+.. _backup_bissbs:
+
+* Create a fresh backup and put system repair and restore tools at hand, just
+ to be prepared for the unlikely case of something going sideways.
+
+ [:ref:`details <backup_bisref>`]
+
+.. _vanilla_bissbs:
+
+* Remove all software that depends on externally developed kernel drivers or
+ builds them automatically. That includes but is not limited to DKMS, openZFS,
+ VirtualBox, and Nvidia's graphics drivers (including the GPLed kernel module).
+
+ [:ref:`details <vanilla_bisref>`]
+
+.. _secureboot_bissbs:
+
+* On platforms with 'Secure Boot' or similar solutions, prepare everything to
+ ensure the system will permit your self-compiled kernel to boot. The
+ quickest and easiest way to achieve this on commodity x86 systems is to
+ disable such techniques in the BIOS setup utility; alternatively, remove
+ their restrictions through a process initiated by
+ ``mokutil --disable-validation``.
+
+ [:ref:`details <secureboot_bisref>`]
+
+.. _rangecheck_bissbs:
+
+* Determine the kernel versions considered 'good' and 'bad' throughout this
+ guide:
+
+ * Do you follow this guide to verify if a bug is present in the code the
+ primary developers care for? Then consider the version of the newest kernel
+ you regularly use currently as 'good' (e.g. 6.0, 6.0.13, or 6.1-rc2).
+
+ * Do you face a regression, e.g. something broke or works worse after
+ switching to a newer kernel version? In that case it depends on the version
+ range during which the problem appeared:
+
+ * Something regressed when updating from a stable/longterm release
+ (say 6.0.13) to a newer mainline series (like 6.1-rc7 or 6.1) or a
+ stable/longterm version based on one (say 6.1.5)? Then consider the
+ mainline release your working kernel is based on to be the 'good'
+ version (e.g. 6.0) and the first version to be broken as the 'bad' one
+ (e.g. 6.1-rc7, 6.1, or 6.1.5). Note, at this point it is merely assumed
+ that 6.0 is fine; this hypothesis will be checked in segment 2.
+
+ * Something regressed when switching from one mainline version (say 6.0) to
+ a later one (like 6.1-rc1) or a stable/longterm release based on it
+ (say 6.1.5)? Then regard the last working version (e.g. 6.0) as 'good' and
+ the first broken (e.g. 6.1-rc1 or 6.1.5) as 'bad'.
+
+ * Something regressed when updating within a stable/longterm series (say
+ from 6.0.13 to 6.0.15)? Then consider those versions as 'good' and 'bad'
+ (e.g. 6.0.13 and 6.0.15), as you need to bisect within that series.
+
+ *Note, do not confuse 'good' version with 'working' kernel; the latter term
+ throughout this guide will refer to the last kernel that has been working
+ fine.*
+
+ [:ref:`details <rangecheck_bisref>`]
+
+.. _bootworking_bissbs:
+
+* Boot into the 'working' kernel and briefly use the apparently broken feature.
+
+ [:ref:`details <bootworking_bisref>`]
+
+.. _diskspace_bissbs:
+
+* Ensure to have enough free space for building Linux. 15 Gigabyte in your home
+ directory should typically suffice. If you have less available, be sure to pay
+ attention to later steps about retrieving the Linux sources and handling of
+ debug symbols: both explain approaches reducing the amount of space, which
+ should allow you to master these tasks with about 4 Gigabytes free space.
+
+ [:ref:`details <diskspace_bisref>`]
+
+.. _buildrequires_bissbs:
+
+* Install all software required to build a Linux kernel. Often you will need:
+ 'bc', 'binutils' ('ld' et al.), 'bison', 'flex', 'gcc', 'git', 'openssl',
+ 'pahole', 'perl', and the development headers for 'libelf' and 'openssl'. The
+ reference section shows how to quickly install those on various popular Linux
+ distributions.
+
+ [:ref:`details <buildrequires_bisref>`]
+
+.. _sources_bissbs:
+
+* Retrieve the mainline Linux sources; then change into the directory holding
+ them, as all further commands in this guide are meant to be executed from
+ there.
+
+ *Note, the following describe how to retrieve the sources using a full
+ mainline clone, which downloads about 2,75 GByte as of early 2024. The*
+ :ref:`reference section describes two alternatives <sources_bisref>` *:
+ one downloads less than 500 MByte, the other works better with unreliable
+ internet connections.*
+
+ Execute the following command to retrieve a fresh mainline codebase while
+ preparing things to add branches for stable/longterm series later::
+
+ git clone -o mainline --no-checkout \
+ https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git ~/linux/
+ cd ~/linux/
+ git remote add -t master stable \
+ https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
+
+ [:ref:`details <sources_bisref>`]
+
+.. _stablesources_bissbs:
+
+* Is one of the versions you earlier established as 'good' or 'bad' a stable or
+ longterm release (say 6.1.5)? Then download the code for the series it belongs
+ to ('linux-6.1.y' in this example)::
+
+ git remote set-branches --add stable linux-6.1.y
+ git fetch stable
+
+.. _oldconfig_bissbs:
+
+* Start preparing a kernel build configuration (the '.config' file).
+
+ Before doing so, ensure you are still running the 'working' kernel an earlier
+ step told you to boot; if you are unsure, check the current kernelrelease
+ identifier using ``uname -r``.
+
+ Afterwards check out the source code for the version earlier established as
+ 'good'. In the following example command this is assumed to be 6.0; note that
+ the version number in this and all later Git commands needs to be prefixed
+ with a 'v'::
+
+ git switch --discard-changes --detach v6.0
+
+ Now create a build configuration file::
+
+ make olddefconfig
+
+ The kernel build scripts then will try to locate the build configuration file
+ for the running kernel and then adjust it for the needs of the kernel sources
+ you checked out. While doing so, it will print a few lines you need to check.
+
+ Look out for a line starting with '# using defaults found in'. It should be
+ followed by a path to a file in '/boot/' that contains the release identifier
+ of your currently working kernel. If the line instead continues with something
+ like 'arch/x86/configs/x86_64_defconfig', then the build infra failed to find
+ the .config file for your running kernel -- in which case you have to put one
+ there manually, as explained in the reference section.
+
+ In case you can not find such a line, look for one containing '# configuration
+ written to .config'. If that's the case you have a stale build configuration
+ lying around. Unless you intend to use it, delete it; afterwards run
+ 'make olddefconfig' again and check if it now picked up the right config file
+ as base.
+
+ [:ref:`details <oldconfig_bisref>`]
+
+.. _localmodconfig_bissbs:
+
+* Disable any kernel modules apparently superfluous for your setup. This is
+ optional, but especially wise for bisections, as it speeds up the build
+ process enormously -- at least unless the .config file picked up in the
+ previous step was already tailored to your and your hardware needs, in which
+ case you should skip this step.
+
+ To prepare the trimming, connect external hardware you occasionally use (USB
+ keys, tokens, ...), quickly start a VM, and bring up VPNs. And if you rebooted
+ since you started that guide, ensure that you tried using the feature causing
+ trouble since you started the system. Only then trim your .config::
+
+ yes '' | make localmodconfig
+
+ There is a catch to this, as the 'apparently' in initial sentence of this step
+ and the preparation instructions already hinted at:
+
+ The 'localmodconfig' target easily disables kernel modules for features only
+ used occasionally -- like modules for external peripherals not yet connected
+ since booting, virtualization software not yet utilized, VPN tunnels, and a
+ few other things. That's because some tasks rely on kernel modules Linux only
+ loads when you execute tasks like the aforementioned ones for the first time.
+
+ This drawback of localmodconfig is nothing you should lose sleep over, but
+ something to keep in mind: if something is misbehaving with the kernels built
+ during this guide, this is most likely the reason. You can reduce or nearly
+ eliminate the risk with tricks outlined in the reference section; but when
+ building a kernel just for quick testing purposes this is usually not worth
+ spending much effort on, as long as it boots and allows to properly test the
+ feature that causes trouble.
+
+ [:ref:`details <localmodconfig_bisref>`]
+
+.. _tagging_bissbs:
+
+* Ensure all the kernels you will build are clearly identifiable using a special
+ tag and a unique version number::
+
+ ./scripts/config --set-str CONFIG_LOCALVERSION '-local'
+ ./scripts/config -e CONFIG_LOCALVERSION_AUTO
+
+ [:ref:`details <tagging_bisref>`]
+
+.. _debugsymbols_bissbs:
+
+* Decide how to handle debug symbols.
+
+ In the context of this document it is often wise to enable them, as there is a
+ decent chance you will need to decode a stack trace from a 'panic', 'Oops',
+ 'warning', or 'BUG'::
+
+ ./scripts/config -d DEBUG_INFO_NONE -e KALLSYMS_ALL -e DEBUG_KERNEL \
+ -e DEBUG_INFO -e DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT -e KALLSYMS
+
+ But if you are extremely short on storage space, you might want to disable
+ debug symbols instead::
+
+ ./scripts/config -d DEBUG_INFO -d DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT \
+ -d DEBUG_INFO_DWARF4 -d DEBUG_INFO_DWARF5 -e CONFIG_DEBUG_INFO_NONE
+
+ [:ref:`details <debugsymbols_bisref>`]
+
+.. _configmods_bissbs:
+
+* Check if you may want or need to adjust some other kernel configuration
+ options:
+
+ * Are you running Debian? Then you want to avoid known problems by performing
+ additional adjustments explained in the reference section.
+
+ [:ref:`details <configmods_distros_bisref>`].
+
+ * If you want to influence other aspects of the configuration, do so now using
+ your preferred tool. Note, to use make targets like 'menuconfig' or
+ 'nconfig', you will need to install the development files of ncurses; for
+ 'xconfig' you likewise need the Qt5 or Qt6 headers.
+
+ [:ref:`details <configmods_individual_bisref>`].
+
+.. _saveconfig_bissbs:
+
+* Reprocess the .config after the latest adjustments and store it in a safe
+ place::
+
+ make olddefconfig
+ cp .config ~/kernel-config-working
+
+ [:ref:`details <saveconfig_bisref>`]
+
+.. _introlatestcheck_bissbs:
+
+Segment 1: try to reproduce the problem with the latest codebase
+----------------------------------------------------------------
+
+The following steps verify if the problem occurs with the code currently
+supported by developers. In case you face a regression, it also checks that the
+problem is not caused by some .config change, as reporting the issue then would
+be a waste of time. [:ref:`details <introlatestcheck_bisref>`]
+
+.. _checkoutmaster_bissbs:
+
+* Check out the latest Linux codebase.
+
+ * Are your 'good' and 'bad' versions from the same stable or longterm series?
+ Then check the `front page of kernel.org <https://kernel.org/>`_: if it
+ lists a release from that series without an '[EOL]' tag, checkout the series
+ latest version ('linux-6.1.y' in the following example)::
+
+ cd ~/linux/
+ git switch --discard-changes --detach stable/linux-6.1.y
+
+ Your series is unsupported, if is not listed or carrying a 'end of life'
+ tag. In that case you might want to check if a successor series (say
+ linux-6.2.y) or mainline (see next point) fix the bug.
+
+ * In all other cases, run::
+
+ cd ~/linux/
+ git switch --discard-changes --detach mainline/master
+
+ [:ref:`details <checkoutmaster_bisref>`]
+
+.. _build_bissbs:
+
+* Build the image and the modules of your first kernel using the config file you
+ prepared::
+
+ cp ~/kernel-config-working .config
+ make olddefconfig
+ make -j $(nproc --all)
+
+ If you want your kernel packaged up as deb, rpm, or tar file, see the
+ reference section for alternatives, which obviously will require other
+ steps to install as well.
+
+ [:ref:`details <build_bisref>`]
+
+.. _install_bissbs:
+
+* Install your newly built kernel.
+
+ Before doing so, consider checking if there is still enough space for it::
+
+ df -h /boot/ /lib/modules/
+
+ For now assume 150 MByte in /boot/ and 200 in /lib/modules/ will suffice; how
+ much your kernels actually require will be determined later during this guide.
+
+ Now install the kernel's modules and its image, which will be stored in
+ parallel to the your Linux distribution's kernels::
+
+ sudo make modules_install
+ command -v installkernel && sudo make install
+
+ The second command ideally will take care of three steps required at this
+ point: copying the kernel's image to /boot/, generating an initramfs, and
+ adding an entry for both to the boot loader's configuration.
+
+ Sadly some distributions (among them Arch Linux, its derivatives, and many
+ immutable Linux distributions) will perform none or only some of those tasks.
+ You therefore want to check if all of them were taken care of and manually
+ perform those that were not. The reference section provides further details on
+ that; your distribution's documentation might help, too.
+
+ Once you figured out the steps needed at this point, consider writing them
+ down: if you will build more kernels as described in segment 2 and 3, you will
+ have to perform those again after executing ``command -v installkernel [...]``.
+
+ [:ref:`details <install_bisref>`]
+
+.. _storagespace_bissbs:
+
+* In case you plan to follow this guide further, check how much storage space
+ the kernel, its modules, and other related files like the initramfs consume::
+
+ du -ch /boot/*$(make -s kernelrelease)* | tail -n 1
+ du -sh /lib/modules/$(make -s kernelrelease)/
+
+ Write down or remember those two values for later: they enable you to prevent
+ running out of disk space accidentally during a bisection.
+
+ [:ref:`details <storagespace_bisref>`]
+
+.. _kernelrelease_bissbs:
+
+* Show and store the kernelrelease identifier of the kernel you just built::
+
+ make -s kernelrelease | tee -a ~/kernels-built
+
+ Remember the identifier momentarily, as it will help you pick the right kernel
+ from the boot menu upon restarting.
+
+* Reboot into your newly built kernel. To ensure your actually started the one
+ you just built, you might want to verify if the output of these commands
+ matches::
+
+ tail -n 1 ~/kernels-built
+ uname -r
+
+.. _tainted_bissbs:
+
+* Check if the kernel marked itself as 'tainted'::
+
+ cat /proc/sys/kernel/tainted
+
+ If that command does not return '0', check the reference section, as the cause
+ for this might interfere with your testing.
+
+ [:ref:`details <tainted_bisref>`]
+
+.. _recheckbroken_bissbs:
+
+* Verify if your bug occurs with the newly built kernel. If it does not, check
+ out the instructions in the reference section to ensure nothing went sideways
+ during your tests.
+
+ [:ref:`details <recheckbroken_bisref>`]
+
+.. _recheckstablebroken_bissbs:
+
+* Did you just built a stable or longterm kernel? And were you able to reproduce
+ the regression with it? Then you should test the latest mainline codebase as
+ well, because the result determines which developers the bug must be submitted
+ to.
+
+ To prepare that test, check out current mainline::
+
+ cd ~/linux/
+ git switch --discard-changes --detach mainline/master
+
+ Now use the checked out code to build and install another kernel using the
+ commands the earlier steps already described in more detail::
+
+ cp ~/kernel-config-working .config
+ make olddefconfig
+ make -j $(nproc --all)
+ # * Check if the free space suffices holding another kernel:
+ df -h /boot/ /lib/modules/
+ sudo make modules_install
+ command -v installkernel && sudo make install
+ make -s kernelrelease | tee -a ~/kernels-built
+ reboot
+
+ Confirm you booted the kernel you intended to start and check its tainted
+ status::
+
+ tail -n 1 ~/kernels-built
+ uname -r
+ cat /proc/sys/kernel/tainted
+
+ Now verify if this kernel is showing the problem. If it does, then you need
+ to report the bug to the primary developers; if it does not, report it to the
+ stable team. See Documentation/admin-guide/reporting-issues.rst for details.
+
+ [:ref:`details <recheckstablebroken_bisref>`]
+
+Do you follow this guide to verify if a problem is present in the code
+currently supported by Linux kernel developers? Then you are done at this
+point. If you later want to remove the kernel you just built, check out
+:ref:`Complementary tasks: cleanup during and after following this guide <introclosure_bissbs>`.
+
+In case you face a regression, move on and execute at least the next segment
+as well.
+
+.. _introworkingcheck_bissbs:
+
+Segment 2: check if the kernels you build work fine
+---------------------------------------------------
+
+In case of a regression, you now want to ensure the trimmed configuration file
+you created earlier works as expected; a bisection with the .config file
+otherwise would be a waste of time. [:ref:`details <introworkingcheck_bisref>`]
+
+.. _recheckworking_bissbs:
+
+* Build your own variant of the 'working' kernel and check if the feature that
+ regressed works as expected with it.
+
+ Start by checking out the sources for the version earlier established as
+ 'good' (once again assumed to be 6.0 here)::
+
+ cd ~/linux/
+ git switch --discard-changes --detach v6.0
+
+ Now use the checked out code to configure, build, and install another kernel
+ using the commands the previous subsection explained in more detail::
+
+ cp ~/kernel-config-working .config
+ make olddefconfig
+ make -j $(nproc --all)
+ # * Check if the free space suffices holding another kernel:
+ df -h /boot/ /lib/modules/
+ sudo make modules_install
+ command -v installkernel && sudo make install
+ make -s kernelrelease | tee -a ~/kernels-built
+ reboot
+
+ When the system booted, you may want to verify once again that the
+ kernel you started is the one you just built::
+
+ tail -n 1 ~/kernels-built
+ uname -r
+
+ Now check if this kernel works as expected; if not, consult the reference
+ section for further instructions.
+
+ [:ref:`details <recheckworking_bisref>`]
+
+.. _introbisect_bissbs:
+
+Segment 3: perform the bisection and validate the result
+--------------------------------------------------------
+
+With all the preparations and precaution builds taken care of, you are now ready
+to begin the bisection. This will make you build quite a few kernels -- usually
+about 15 in case you encountered a regression when updating to a newer series
+(say from 6.0.13 to 6.1.5). But do not worry, due to the trimmed build
+configuration created earlier this works a lot faster than many people assume:
+overall on average it will often just take about 10 to 15 minutes to compile
+each kernel on commodity x86 machines.
+
+.. _bisectstart_bissbs:
+
+* Start the bisection and tell Git about the versions earlier established as
+ 'good' (6.0 in the following example command) and 'bad' (6.1.5)::
+
+ cd ~/linux/
+ git bisect start
+ git bisect good v6.0
+ git bisect bad v6.1.5
+
+ [:ref:`details <bisectstart_bisref>`]
+
+.. _bisectbuild_bissbs:
+
+* Now use the code Git checked out to build, install, and boot a kernel using
+ the commands introduced earlier::
+
+ cp ~/kernel-config-working .config
+ make olddefconfig
+ make -j $(nproc --all)
+ # * Check if the free space suffices holding another kernel:
+ df -h /boot/ /lib/modules/
+ sudo make modules_install
+ command -v installkernel && sudo make install
+ make -s kernelrelease | tee -a ~/kernels-built
+ reboot
+
+ If compilation fails for some reason, run ``git bisect skip`` and restart
+ executing the stack of commands from the beginning.
+
+ In case you skipped the 'test latest codebase' step in the guide, check its
+ description as for why the 'df [...]' and 'make -s kernelrelease [...]'
+ commands are here.
+
+ Important note: the latter command from this point on will print release
+ identifiers that might look odd or wrong to you -- which they are not, as it's
+ totally normal to see release identifiers like '6.0-rc1-local-gcafec0cacaca0'
+ if you bisect between versions 6.1 and 6.2 for example.
+
+ [:ref:`details <bisectbuild_bisref>`]
+
+.. _bisecttest_bissbs:
+
+* Now check if the feature that regressed works in the kernel you just built.
+
+ You again might want to start by making sure the kernel you booted is the one
+ you just built::
+
+ cd ~/linux/
+ tail -n 1 ~/kernels-built
+ uname -r
+
+ Now verify if the feature that regressed works at this kernel bisection point.
+ If it does, run this::
+
+ git bisect good
+
+ If it does not, run this::
+
+ git bisect bad
+
+ Be sure about what you tell Git, as getting this wrong just once will send the
+ rest of the bisection totally off course.
+
+ While the bisection is ongoing, Git will use the information you provided to
+ find and check out another bisection point for you to test. While doing so, it
+ will print something like 'Bisecting: 675 revisions left to test after this
+ (roughly 10 steps)' to indicate how many further changes it expects to be
+ tested. Now build and install another kernel using the instructions from the
+ previous step; afterwards follow the instructions in this step again.
+
+ Repeat this again and again until you finish the bisection -- that's the case
+ when Git after tagging a change as 'good' or 'bad' prints something like
+ 'cafecaca0c0dacafecaca0c0dacafecaca0c0da is the first bad commit'; right
+ afterwards it will show some details about the culprit including the patch
+ description of the change. The latter might fill your terminal screen, so you
+ might need to scroll up to see the message mentioning the culprit;
+ alternatively, run ``git bisect log > ~/bisection-log``.
+
+ [:ref:`details <bisecttest_bisref>`]
+
+.. _bisectlog_bissbs:
+
+* Store Git's bisection log and the current .config file in a safe place before
+ telling Git to reset the sources to the state before the bisection::
+
+ cd ~/linux/
+ git bisect log > ~/bisection-log
+ cp .config ~/bisection-config-culprit
+ git bisect reset
+
+ [:ref:`details <bisectlog_bisref>`]
+
+.. _revert_bissbs:
+
+* Try reverting the culprit on top of latest mainline to see if this fixes your
+ regression.
+
+ This is optional, as it might be impossible or hard to realize. The former is
+ the case, if the bisection determined a merge commit as the culprit; the
+ latter happens if other changes depend on the culprit. But if the revert
+ succeeds, it is worth building another kernel, as it validates the result of
+ a bisection, which can easily deroute; it furthermore will let kernel
+ developers know, if they can resolve the regression with a quick revert.
+
+ Begin by checking out the latest codebase depending on the range you bisected:
+
+ * Did you face a regression within a stable/longterm series (say between
+ 6.0.13 and 6.0.15) that does not happen in mainline? Then check out the
+ latest codebase for the affected series like this::
+
+ git fetch stable
+ git switch --discard-changes --detach linux-6.0.y
+
+ * In all other cases check out latest mainline::
+
+ git fetch mainline
+ git switch --discard-changes --detach mainline/master
+
+ If you bisected a regression within a stable/longterm series that also
+ happens in mainline, there is one more thing to do: look up the mainline
+ commit-id. To do so, use a command like ``git show abcdcafecabcd`` to
+ view the patch description of the culprit. There will be a line near
+ the top which looks like 'commit cafec0cacaca0 upstream.' or
+ 'Upstream commit cafec0cacaca0'; use that commit-id in the next command
+ and not the one the bisection blamed.
+
+ Now try reverting the culprit by specifying its commit id::
+
+ git revert --no-edit cafec0cacaca0
+
+ If that fails, give up trying and move on to the next step; if it works,
+ adjust the tag to facilitate the identification and prevent accidentally
+ overwriting another kernel::
+
+ cp ~/kernel-config-working .config
+ ./scripts/config --set-str CONFIG_LOCALVERSION '-local-cafec0cacaca0-reverted'
+
+ Build a kernel using the familiar command sequence, just without copying the
+ the base .config over::
+
+ make olddefconfig &&
+ make -j $(nproc --all)
+ # * Check if the free space suffices holding another kernel:
+ df -h /boot/ /lib/modules/
+ sudo make modules_install
+ command -v installkernel && sudo make install
+ make -s kernelrelease | tee -a ~/kernels-built
+ reboot
+
+ Now check one last time if the feature that made you perform a bisection works
+ with that kernel: if everything went well, it should not show the regression.
+
+ [:ref:`details <revert_bisref>`]
+
+.. _introclosure_bissbs:
+
+Complementary tasks: cleanup during and after the bisection
+-----------------------------------------------------------
+
+During and after following this guide you might want or need to remove some of
+the kernels you installed: the boot menu otherwise will become confusing or
+space might run out.
+
+.. _makeroom_bissbs:
+
+* To remove one of the kernels you installed, look up its 'kernelrelease'
+ identifier. This guide stores them in '~/kernels-built', but the following
+ command will print them as well::
+
+ ls -ltr /lib/modules/*-local*
+
+ You in most situations want to remove the oldest kernels built during the
+ actual bisection (e.g. segment 3 of this guide). The two ones you created
+ beforehand (e.g. to test the latest codebase and the version considered
+ 'good') might become handy to verify something later -- thus better keep them
+ around, unless you are really short on storage space.
+
+ To remove the modules of a kernel with the kernelrelease identifier
+ '*6.0-rc1-local-gcafec0cacaca0*', start by removing the directory holding its
+ modules::
+
+ sudo rm -rf /lib/modules/6.0-rc1-local-gcafec0cacaca0
+
+ Afterwards try the following command::
+
+ sudo kernel-install -v remove 6.0-rc1-local-gcafec0cacaca0
+
+ On quite a few distributions this will delete all other kernel files installed
+ while also removing the kernel's entry from the boot menu. But on some
+ distributions kernel-install does not exist or leaves boot-loader entries or
+ kernel image and related files behind; in that case remove them as described
+ in the reference section.
+
+ [:ref:`details <makeroom_bisref>`]
+
+.. _finishingtouch_bissbs:
+
+* Once you have finished the bisection, do not immediately remove anything you
+ set up, as you might need a few things again. What is safe to remove depends
+ on the outcome of the bisection:
+
+ * Could you initially reproduce the regression with the latest codebase and
+ after the bisection were able to fix the problem by reverting the culprit on
+ top of the latest codebase? Then you want to keep those two kernels around
+ for a while, but safely remove all others with a '-local' in the release
+ identifier.
+
+ * Did the bisection end on a merge-commit or seems questionable for other
+ reasons? Then you want to keep as many kernels as possible around for a few
+ days: it's pretty likely that you will be asked to recheck something.
+
+ * In other cases it likely is a good idea to keep the following kernels around
+ for some time: the one built from the latest codebase, the one created from
+ the version considered 'good', and the last three or four you compiled
+ during the actual bisection process.
+
+ [:ref:`details <finishingtouch_bisref>`]
+
+.. _introoptional_bissbs:
+
+Optional: test reverts, patches, or later versions
+--------------------------------------------------
+
+While or after reporting a bug, you might want or potentially will be asked to
+test reverts, debug patches, proposed fixes, or other versions. In that case
+follow these instructions.
+
+* Update your Git clone and check out the latest code.
+
+ * In case you want to test mainline, fetch its latest changes before checking
+ its code out::
+
+ git fetch mainline
+ git switch --discard-changes --detach mainline/master
+
+ * In case you want to test a stable or longterm kernel, first add the branch
+ holding the series you are interested in (6.2 in the example), unless you
+ already did so earlier::
+
+ git remote set-branches --add stable linux-6.2.y
+
+ Then fetch the latest changes and check out the latest version from the
+ series::
+
+ git fetch stable
+ git switch --discard-changes --detach stable/linux-6.2.y
+
+* Copy your kernel build configuration over::
+
+ cp ~/kernel-config-working .config
+
+* Your next step depends on what you want to do:
+
+ * In case you just want to test the latest codebase, head to the next step,
+ you are already all set.
+
+ * In case you want to test if a revert fixes an issue, revert one or multiple
+ changes by specifying their commit ids::
+
+ git revert --no-edit cafec0cacaca0
+
+ Now give that kernel a special tag to facilitates its identification and
+ prevent accidentally overwriting another kernel::
+
+ ./scripts/config --set-str CONFIG_LOCALVERSION '-local-cafec0cacaca0-reverted'
+
+ * In case you want to test a patch, store the patch in a file like
+ '/tmp/foobars-proposed-fix-v1.patch' and apply it like this::
+
+ git apply /tmp/foobars-proposed-fix-v1.patch
+
+ In case of multiple patches, repeat this step with the others.
+
+ Now give that kernel a special tag to facilitates its identification and
+ prevent accidentally overwriting another kernel::
+
+ ./scripts/config --set-str CONFIG_LOCALVERSION '-local-foobars-fix-v1'
+
+* Build a kernel using the familiar commands, just without copying the kernel
+ build configuration over, as that has been taken care of already::
+
+ make olddefconfig &&
+ make -j $(nproc --all)
+ # * Check if the free space suffices holding another kernel:
+ df -h /boot/ /lib/modules/
+ sudo make modules_install
+ command -v installkernel && sudo make install
+ make -s kernelrelease | tee -a ~/kernels-built
+ reboot
+
+* Now verify you booted the newly built kernel and check it.
+
+[:ref:`details <introoptional_bisref>`]
+
+.. _submit_improvements_vbbr:
+
+Conclusion
+----------
+
+You have reached the end of the step-by-step guide.
+
+Did you run into trouble following any of the above steps not cleared up by the
+reference section below? Did you spot errors? Or do you have ideas how to
+improve the guide?
+
+If any of that applies, please take a moment and let the maintainer of this
+document know by email (Thorsten Leemhuis <linux@leemhuis.info>), ideally while
+CCing the Linux docs mailing list (linux-doc@vger.kernel.org). Such feedback is
+vital to improve this text further, which is in everybody's interest, as it
+will enable more people to master the task described here -- and hopefully also
+improve similar guides inspired by this one.
+
+
+Reference section for the step-by-step guide
+============================================
+
+This section holds additional information for almost all the items in the above
+step-by-step guide.
+
+Preparations for building your own kernels
+------------------------------------------
+
+ *The steps in this section lay the groundwork for all further tests.*
+ [:ref:`... <introprep_bissbs>`]
+
+The steps in all later sections of this guide depend on those described here.
+
+[:ref:`back to step-by-step guide <introprep_bissbs>`].
+
+.. _backup_bisref:
+
+Prepare for emergencies
+~~~~~~~~~~~~~~~~~~~~~~~
+
+ *Create a fresh backup and put system repair and restore tools at hand.*
+ [:ref:`... <backup_bissbs>`]
+
+Remember, you are dealing with computers, which sometimes do unexpected things
+-- especially if you fiddle with crucial parts like the kernel of an operating
+system. That's what you are about to do in this process. Hence, better prepare
+for something going sideways, even if that should not happen.
+
+[:ref:`back to step-by-step guide <backup_bissbs>`]
+
+.. _vanilla_bisref:
+
+Remove anything related to externally maintained kernel modules
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+ *Remove all software that depends on externally developed kernel drivers or
+ builds them automatically.* [:ref:`...<vanilla_bissbs>`]
+
+Externally developed kernel modules can easily cause trouble during a bisection.
+
+But there is a more important reason why this guide contains this step: most
+kernel developers will not care about reports about regressions occurring with
+kernels that utilize such modules. That's because such kernels are not
+considered 'vanilla' anymore, as Documentation/admin-guide/reporting-issues.rst
+explains in more detail.
+
+[:ref:`back to step-by-step guide <vanilla_bissbs>`]
+
+.. _secureboot_bisref:
+
+Deal with techniques like Secure Boot
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+ *On platforms with 'Secure Boot' or similar techniques, prepare everything to
+ ensure the system will permit your self-compiled kernel to boot later.*
+ [:ref:`... <secureboot_bissbs>`]
+
+Many modern systems allow only certain operating systems to start; that's why
+they reject booting self-compiled kernels by default.
+
+You ideally deal with this by making your platform trust your self-built kernels
+with the help of a certificate. How to do that is not described
+here, as it requires various steps that would take the text too far away from
+its purpose; 'Documentation/admin-guide/module-signing.rst' and various web
+sides already explain everything needed in more detail.
+
+Temporarily disabling solutions like Secure Boot is another way to make your own
+Linux boot. On commodity x86 systems it is possible to do this in the BIOS Setup
+utility; the required steps vary a lot between machines and therefore cannot be
+described here.
+
+On mainstream x86 Linux distributions there is a third and universal option:
+disable all Secure Boot restrictions for your Linux environment. You can
+initiate this process by running ``mokutil --disable-validation``; this will
+tell you to create a one-time password, which is safe to write down. Now
+restart; right after your BIOS performed all self-tests the bootloader Shim will
+show a blue box with a message 'Press any key to perform MOK management'. Hit
+some key before the countdown exposes, which will open a menu. Choose 'Change
+Secure Boot state'. Shim's 'MokManager' will now ask you to enter three
+randomly chosen characters from the one-time password specified earlier. Once
+you provided them, confirm you really want to disable the validation.
+Afterwards, permit MokManager to reboot the machine.
+
+[:ref:`back to step-by-step guide <secureboot_bissbs>`]
+
+.. _bootworking_bisref:
+
+Boot the last kernel that was working
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+ *Boot into the last working kernel and briefly recheck if the feature that
+ regressed really works.* [:ref:`...<bootworking_bissbs>`]
+
+This will make later steps that cover creating and trimming the configuration do
+the right thing.
+
+[:ref:`back to step-by-step guide <bootworking_bissbs>`]
+
+.. _diskspace_bisref:
+
+Space requirements
+~~~~~~~~~~~~~~~~~~
+
+ *Ensure to have enough free space for building Linux.*
+ [:ref:`... <diskspace_bissbs>`]
+
+The numbers mentioned are rough estimates with a big extra charge to be on the
+safe side, so often you will need less.
+
+If you have space constraints, be sure to hay attention to the :ref:`step about
+debug symbols' <debugsymbols_bissbs>` and its :ref:`accompanying reference
+section' <debugsymbols_bisref>`, as disabling then will reduce the consumed disk
+space by quite a few gigabytes.
+
+[:ref:`back to step-by-step guide <diskspace_bissbs>`]
+
+.. _rangecheck_bisref:
+
+Bisection range
+~~~~~~~~~~~~~~~
+
+ *Determine the kernel versions considered 'good' and 'bad' throughout this
+ guide.* [:ref:`...<rangecheck_bissbs>`]
+
+Establishing the range of commits to be checked is mostly straightforward,
+except when a regression occurred when switching from a release of one stable
+series to a release of a later series (e.g. from 6.0.13 to 6.1.5). In that case
+Git will need some hand holding, as there is no straight line of descent.
+
+That's because with the release of 6.0 mainline carried on to 6.1 while the
+stable series 6.0.y branched to the side. It's therefore theoretically possible
+that the issue you face with 6.1.5 only worked in 6.0.13, as it was fixed by a
+commit that went into one of the 6.0.y releases, but never hit mainline or the
+6.1.y series. Thankfully that normally should not happen due to the way the
+stable/longterm maintainers maintain the code. It's thus pretty safe to assume
+6.0 as a 'good' kernel. That assumption will be tested anyway, as that kernel
+will be built and tested in the segment '2' of this guide; Git would force you
+to do this as well, if you tried bisecting between 6.0.13 and 6.1.15.
+
+[:ref:`back to step-by-step guide <rangecheck_bissbs>`]
+
+.. _buildrequires_bisref:
+
+Install build requirements
+~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+ *Install all software required to build a Linux kernel.*
+ [:ref:`...<buildrequires_bissbs>`]
+
+The kernel is pretty stand-alone, but besides tools like the compiler you will
+sometimes need a few libraries to build one. How to install everything needed
+depends on your Linux distribution and the configuration of the kernel you are
+about to build.
+
+Here are a few examples what you typically need on some mainstream
+distributions:
+
+* Arch Linux and derivatives::
+
+ sudo pacman --needed -S bc binutils bison flex gcc git kmod libelf openssl \
+ pahole perl zlib ncurses qt6-base
+
+* Debian, Ubuntu, and derivatives::
+
+ sudo apt install bc binutils bison dwarves flex gcc git kmod libelf-dev \
+ libssl-dev make openssl pahole perl-base pkg-config zlib1g-dev \
+ libncurses-dev qt6-base-dev g++
+
+* Fedora and derivatives::
+
+ sudo dnf install binutils \
+ /usr/bin/{bc,bison,flex,gcc,git,openssl,make,perl,pahole,rpmbuild} \
+ /usr/include/{libelf.h,openssl/pkcs7.h,zlib.h,ncurses.h,qt6/QtGui/QAction}
+
+* openSUSE and derivatives::
+
+ sudo zypper install bc binutils bison dwarves flex gcc git \
+ kernel-install-tools libelf-devel make modutils openssl openssl-devel \
+ perl-base zlib-devel rpm-build ncurses-devel qt6-base-devel
+
+These commands install a few packages that are often, but not always needed. You
+for example might want to skip installing the development headers for ncurses,
+which you will only need in case you later might want to adjust the kernel build
+configuration using make the targets 'menuconfig' or 'nconfig'; likewise omit
+the headers of Qt6 if you do not plan to adjust the .config using 'xconfig'.
+
+You furthermore might need additional libraries and their development headers
+for tasks not covered in this guide -- for example when building utilities from
+the kernel's tools/ directory.
+
+[:ref:`back to step-by-step guide <buildrequires_bissbs>`]
+
+.. _sources_bisref:
+
+Download the sources using Git
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+ *Retrieve the Linux mainline sources.*
+ [:ref:`...<sources_bissbs>`]
+
+The step-by-step guide outlines how to download the Linux sources using a full
+Git clone of Linus' mainline repository. There is nothing more to say about
+that -- but there are two alternatives ways to retrieve the sources that might
+work better for you:
+
+* If you have an unreliable internet connection, consider
+ :ref:`using a 'Git bundle'<sources_bundle_bisref>`.
+
+* If downloading the complete repository would take too long or requires too
+ much storage space, consider :ref:`using a 'shallow
+ clone'<sources_shallow_bisref>`.
+
+.. _sources_bundle_bisref:
+
+Downloading Linux mainline sources using a bundle
+"""""""""""""""""""""""""""""""""""""""""""""""""
+
+Use the following commands to retrieve the Linux mainline sources using a
+bundle::
+
+ wget -c \
+ https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/clone.bundle
+ git clone --no-checkout clone.bundle ~/linux/
+ cd ~/linux/
+ git remote remove origin
+ git remote add mainline \
+ https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
+ git fetch mainline
+ git remote add -t master stable \
+ https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
+
+In case the 'wget' command fails, just re-execute it, it will pick up where
+it left off.
+
+[:ref:`back to step-by-step guide <sources_bissbs>`]
+[:ref:`back to section intro <sources_bisref>`]
+
+.. _sources_shallow_bisref:
+
+Downloading Linux mainline sources using a shallow clone
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+First, execute the following command to retrieve the latest mainline codebase::
+
+ git clone -o mainline --no-checkout --depth 1 -b master \
+ https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git ~/linux/
+ cd ~/linux/
+ git remote add -t master stable \
+ https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
+
+Now deepen your clone's history to the second predecessor of the mainline
+release of your 'good' version. In case the latter are 6.0 or 6.0.13, 5.19 would
+be the first predecessor and 5.18 the second -- hence deepen the history up to
+that version::
+
+ git fetch --shallow-exclude=v5.18 mainline
+
+Afterwards add the stable Git repository as remote and all required stable
+branches as explained in the step-by-step guide.
+
+Note, shallow clones have a few peculiar characteristics:
+
+* For bisections the history needs to be deepened a few mainline versions
+ farther than it seems necessary, as explained above already. That's because
+ Git otherwise will be unable to revert or describe most of the commits within
+ a range (say 6.1..6.2), as they are internally based on earlier kernels
+ releases (like 6.0-rc2 or 5.19-rc3).
+
+* This document in most places uses ``git fetch`` with ``--shallow-exclude=``
+ to specify the earliest version you care about (or to be precise: its git
+ tag). You alternatively can use the parameter ``--shallow-since=`` to specify
+ an absolute (say ``'2023-07-15'``) or relative (``'12 months'``) date to
+ define the depth of the history you want to download. When using them while
+ bisecting mainline, ensure to deepen the history to at least 7 months before
+ the release of the mainline release your 'good' kernel is based on.
+
+* Be warned, when deepening your clone you might encounter an error like
+ 'fatal: error in object: unshallow cafecaca0c0dacafecaca0c0dacafecaca0c0da'.
+ In that case run ``git repack -d`` and try again.
+
+[:ref:`back to step-by-step guide <sources_bissbs>`]
+[:ref:`back to section intro <sources_bisref>`]
+
+.. _oldconfig_bisref:
+
+Start defining the build configuration for your kernel
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+ *Start preparing a kernel build configuration (the '.config' file).*
+ [:ref:`... <oldconfig_bissbs>`]
+
+*Note, this is the first of multiple steps in this guide that create or modify
+build artifacts. The commands used in this guide store them right in the source
+tree to keep things simple. In case you prefer storing the build artifacts
+separately, create a directory like '~/linux-builddir/' and add the parameter
+``O=~/linux-builddir/`` to all make calls used throughout this guide. You will
+have to point other commands there as well -- among them the ``./scripts/config
+[...]`` commands, which will require ``--file ~/linux-builddir/.config`` to
+locate the right build configuration.*
+
+Two things can easily go wrong when creating a .config file as advised:
+
+* The oldconfig target will use a .config file from your build directory, if
+ one is already present there (e.g. '~/linux/.config'). That's totally fine if
+ that's what you intend (see next step), but in all other cases you want to
+ delete it. This for example is important in case you followed this guide
+ further, but due to problems come back here to redo the configuration from
+ scratch.
+
+* Sometimes olddefconfig is unable to locate the .config file for your running
+ kernel and will use defaults, as briefly outlined in the guide. In that case
+ check if your distribution ships the configuration somewhere and manually put
+ it in the right place (e.g. '~/linux/.config') if it does. On distributions
+ where /proc/config.gz exists this can be achieved using this command::
+
+ zcat /proc/config.gz > .config
+
+ Once you put it there, run ``make olddefconfig`` again to adjust it to the
+ needs of the kernel about to be built.
+
+Note, the olddefconfig target will set any undefined build options to their
+default value. If you prefer to set such configuration options manually, use
+``make oldconfig`` instead. Then for each undefined configuration option you
+will be asked how to proceed; in case you are unsure what to answer, simply hit
+'enter' to apply the default value. Note though that for bisections you normally
+want to go with the defaults, as you otherwise might enable a new feature that
+causes a problem looking like regressions (for example due to security
+restrictions).
+
+Occasionally odd things happen when trying to use a config file prepared for one
+kernel (say 6.1) on an older mainline release -- especially if it is much older
+(say 5.15). That's one of the reasons why the previous step in the guide told
+you to boot the kernel where everything works. If you manually add a .config
+file you thus want to ensure it's from the working kernel and not from a one
+that shows the regression.
+
+In case you want to build kernels for another machine, locate its kernel build
+configuration; usually ``ls /boot/config-$(uname -r)`` will print its name. Copy
+that file to the build machine and store it as ~/linux/.config; afterwards run
+``make olddefconfig`` to adjust it.
+
+[:ref:`back to step-by-step guide <oldconfig_bissbs>`]
+
+.. _localmodconfig_bisref:
+
+Trim the build configuration for your kernel
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+ *Disable any kernel modules apparently superfluous for your setup.*
+ [:ref:`... <localmodconfig_bissbs>`]
+
+As explained briefly in the step-by-step guide already: with localmodconfig it
+can easily happen that your self-built kernels will lack modules for tasks you
+did not perform at least once before utilizing this make target. That happens
+when a task requires kernel modules which are only autoloaded when you execute
+it for the first time. So when you never performed that task since starting your
+kernel the modules will not have been loaded -- and from localmodconfig's point
+of view look superfluous, which thus disables them to reduce the amount of code
+to be compiled.
+
+You can try to avoid this by performing typical tasks that often will autoload
+additional kernel modules: start a VM, establish VPN connections, loop-mount a
+CD/DVD ISO, mount network shares (CIFS, NFS, ...), and connect all external
+devices (2FA keys, headsets, webcams, ...) as well as storage devices with file
+systems you otherwise do not utilize (btrfs, ext4, FAT, NTFS, XFS, ...). But it
+is hard to think of everything that might be needed -- even kernel developers
+often forget one thing or another at this point.
+
+Do not let that risk bother you, especially when compiling a kernel only for
+testing purposes: everything typically crucial will be there. And if you forget
+something important you can turn on a missing feature manually later and quickly
+run the commands again to compile and install a kernel that has everything you
+need.
+
+But if you plan to build and use self-built kernels regularly, you might want to
+reduce the risk by recording which modules your system loads over the course of
+a few weeks. You can automate this with `modprobed-db
+<https://github.com/graysky2/modprobed-db>`_. Afterwards use ``LSMOD=<path>`` to
+point localmodconfig to the list of modules modprobed-db noticed being used::
+
+ yes '' | make LSMOD='${HOME}'/.config/modprobed.db localmodconfig
+
+That parameter also allows you to build trimmed kernels for another machine in
+case you copied a suitable .config over to use as base (see previous step). Just
+run ``lsmod > lsmod_foo-machine`` on that system and copy the generated file to
+your build's host home directory. Then run these commands instead of the one the
+step-by-step guide mentions::
+
+ yes '' | make LSMOD=~/lsmod_foo-machine localmodconfig
+
+[:ref:`back to step-by-step guide <localmodconfig_bissbs>`]
+
+.. _tagging_bisref:
+
+Tag the kernels about to be build
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+ *Ensure all the kernels you will build are clearly identifiable using a
+ special tag and a unique version identifier.* [:ref:`... <tagging_bissbs>`]
+
+This allows you to differentiate your distribution's kernels from those created
+during this process, as the file or directories for the latter will contain
+'-local' in the name; it also helps picking the right entry in the boot menu and
+not lose track of you kernels, as their version numbers will look slightly
+confusing during the bisection.
+
+[:ref:`back to step-by-step guide <tagging_bissbs>`]
+
+.. _debugsymbols_bisref:
+
+Decide to enable or disable debug symbols
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+ *Decide how to handle debug symbols.* [:ref:`... <debugsymbols_bissbs>`]
+
+Having debug symbols available can be important when your kernel throws a
+'panic', 'Oops', 'warning', or 'BUG' later when running, as then you will be
+able to find the exact place where the problem occurred in the code. But
+collecting and embedding the needed debug information takes time and consumes
+quite a bit of space: in late 2022 the build artifacts for a typical x86 kernel
+trimmed with localmodconfig consumed around 5 Gigabyte of space with debug
+symbols, but less than 1 when they were disabled. The resulting kernel image and
+modules are bigger as well, which increases storage requirements for /boot/ and
+load times.
+
+In case you want a small kernel and are unlikely to decode a stack trace later,
+you thus might want to disable debug symbols to avoid those downsides. If it
+later turns out that you need them, just enable them as shown and rebuild the
+kernel.
+
+You on the other hand definitely want to enable them for this process, if there
+is a decent chance that you need to decode a stack trace later. The section
+'Decode failure messages' in Documentation/admin-guide/reporting-issues.rst
+explains this process in more detail.
+
+[:ref:`back to step-by-step guide <debugsymbols_bissbs>`]
+
+.. _configmods_bisref:
+
+Adjust build configuration
+~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+ *Check if you may want or need to adjust some other kernel configuration
+ options:*
+
+Depending on your needs you at this point might want or have to adjust some
+kernel configuration options.
+
+.. _configmods_distros_bisref:
+
+Distro specific adjustments
+"""""""""""""""""""""""""""
+
+ *Are you running* [:ref:`... <configmods_bissbs>`]
+
+The following sections help you to avoid build problems that are known to occur
+when following this guide on a few commodity distributions.
+
+**Debian:**
+
+* Remove a stale reference to a certificate file that would cause your build to
+ fail::
+
+ ./scripts/config --set-str SYSTEM_TRUSTED_KEYS ''
+
+ Alternatively, download the needed certificate and make that configuration
+ option point to it, as `the Debian handbook explains in more detail
+ <https://debian-handbook.info/browse/stable/sect.kernel-compilation.html>`_
+ -- or generate your own, as explained in
+ Documentation/admin-guide/module-signing.rst.
+
+[:ref:`back to step-by-step guide <configmods_bissbs>`]
+
+.. _configmods_individual_bisref:
+
+Individual adjustments
+""""""""""""""""""""""
+
+ *If you want to influence the other aspects of the configuration, do so
+ now.* [:ref:`... <configmods_bissbs>`]
+
+At this point you can use a command like ``make menuconfig`` or ``make nconfig``
+to enable or disable certain features using a text-based user interface; to use
+a graphical configuration utility, run ``make xconfig`` instead. Both of them
+require development libraries from toolkits they are rely on (ncurses
+respectively Qt5 or Qt6); an error message will tell you if something required
+is missing.
+
+[:ref:`back to step-by-step guide <configmods_bissbs>`]
+
+.. _saveconfig_bisref:
+
+Put the .config file aside
+~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+ *Reprocess the .config after the latest changes and store it in a safe place.*
+ [:ref:`... <saveconfig_bissbs>`]
+
+Put the .config you prepared aside, as you want to copy it back to the build
+directory every time during this guide before you start building another
+kernel. That's because going back and forth between different versions can alter
+.config files in odd ways; those occasionally cause side effects that could
+confuse testing or in some cases render the result of your bisection
+meaningless.
+
+[:ref:`back to step-by-step guide <saveconfig_bissbs>`]
+
+.. _introlatestcheck_bisref:
+
+Try to reproduce the problem with the latest codebase
+-----------------------------------------------------
+
+ *Verify the regression is not caused by some .config change and check if it
+ still occurs with the latest codebase.* [:ref:`... <introlatestcheck_bissbs>`]
+
+For some readers it might seem unnecessary to check the latest codebase at this
+point, especially if you did that already with a kernel prepared by your
+distributor or face a regression within a stable/longterm series. But it's
+highly recommended for these reasons:
+
+* You will run into any problems caused by your setup before you actually begin
+ a bisection. That will make it a lot easier to differentiate between 'this
+ most likely is some problem in my setup' and 'this change needs to be skipped
+ during the bisection, as the kernel sources at that stage contain an unrelated
+ problem that causes building or booting to fail'.
+
+* These steps will rule out if your problem is caused by some change in the
+ build configuration between the 'working' and the 'broken' kernel. This for
+ example can happen when your distributor enabled an additional security
+ feature in the newer kernel which was disabled or not yet supported by the
+ older kernel. That security feature might get into the way of something you
+ do -- in which case your problem from the perspective of the Linux kernel
+ upstream developers is not a regression, as
+ Documentation/admin-guide/reporting-regressions.rst explains in more detail.
+ You thus would waste your time if you'd try to bisect this.
+
+* If the cause for your regression was already fixed in the latest mainline
+ codebase, you'd perform the bisection for nothing. This holds true for a
+ regression you encountered with a stable/longterm release as well, as they are
+ often caused by problems in mainline changes that were backported -- in which
+ case the problem will have to be fixed in mainline first. Maybe it already was
+ fixed there and the fix is already in the process of being backported.
+
+* For regressions within a stable/longterm series it's furthermore crucial to
+ know if the issue is specific to that series or also happens in the mainline
+ kernel, as the report needs to be sent to different people:
+
+ * Regressions specific to a stable/longterm series are the stable team's
+ responsibility; mainline Linux developers might or might not care.
+
+ * Regressions also happening in mainline are something the regular Linux
+ developers and maintainers have to handle; the stable team does not care
+ and does not need to be involved in the report, they just should be told
+ to backport the fix once it's ready.
+
+ Your report might be ignored if you send it to the wrong party -- and even
+ when you get a reply there is a decent chance that developers tell you to
+ evaluate which of the two cases it is before they take a closer look.
+
+[:ref:`back to step-by-step guide <introlatestcheck_bissbs>`]
+
+.. _checkoutmaster_bisref:
+
+Check out the latest Linux codebase
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+ *Check out the latest Linux codebase.*
+ [:ref:`... <checkoutmaster_bissbs>`]
+
+In case you later want to recheck if an ever newer codebase might fix the
+problem, remember to run that ``git fetch --shallow-exclude [...]`` command
+again mentioned earlier to update your local Git repository.
+
+[:ref:`back to step-by-step guide <checkoutmaster_bissbs>`]
+
+.. _build_bisref:
+
+Build your kernel
+~~~~~~~~~~~~~~~~~
+
+ *Build the image and the modules of your first kernel using the config file
+ you prepared.* [:ref:`... <build_bissbs>`]
+
+A lot can go wrong at this stage, but the instructions below will help you help
+yourself. Another subsection explains how to directly package your kernel up as
+deb, rpm or tar file.
+
+Dealing with build errors
+"""""""""""""""""""""""""
+
+When a build error occurs, it might be caused by some aspect of your machine's
+setup that often can be fixed quickly; other times though the problem lies in
+the code and can only be fixed by a developer. A close examination of the
+failure messages coupled with some research on the internet will often tell you
+which of the two it is. To perform such investigation, restart the build
+process like this::
+
+ make V=1
+
+The ``V=1`` activates verbose output, which might be needed to see the actual
+error. To make it easier to spot, this command also omits the ``-j $(nproc
+--all)`` used earlier to utilize every CPU core in the system for the job -- but
+this parallelism also results in some clutter when failures occur.
+
+After a few seconds the build process should run into the error again. Now try
+to find the most crucial line describing the problem. Then search the internet
+for the most important and non-generic section of that line (say 4 to 8 words);
+avoid or remove anything that looks remotely system-specific, like your username
+or local path names like ``/home/username/linux/``. First try your regular
+internet search engine with that string, afterwards search Linux kernel mailing
+lists via `lore.kernel.org/all/ <https://lore.kernel.org/all/>`_.
+
+This most of the time will find something that will explain what is wrong; quite
+often one of the hits will provide a solution for your problem, too. If you
+do not find anything that matches your problem, try again from a different angle
+by modifying your search terms or using another line from the error messages.
+
+In the end, most issues you run into have likely been encountered and
+reported by others already. That includes issues where the cause is not your
+system, but lies in the code. If you run into one of those, you might thus find
+a solution (e.g. a patch) or workaround for your issue, too.
+
+Package your kernel up
+""""""""""""""""""""""
+
+The step-by-step guide uses the default make targets (e.g. 'bzImage' and
+'modules' on x86) to build the image and the modules of your kernel, which later
+steps of the guide then install. You instead can also directly build everything
+and directly package it up by using one of the following targets:
+
+* ``make -j $(nproc --all) bindeb-pkg`` to generate a deb package
+
+* ``make -j $(nproc --all) binrpm-pkg`` to generate a rpm package
+
+* ``make -j $(nproc --all) tarbz2-pkg`` to generate a bz2 compressed tarball
+
+This is just a selection of available make targets for this purpose, see
+``make help`` for others. You can also use these targets after running
+``make -j $(nproc --all)``, as they will pick up everything already built.
+
+If you employ the targets to generate deb or rpm packages, ignore the
+step-by-step guide's instructions on installing and removing your kernel;
+instead install and remove the packages using the package utility for the format
+(e.g. dpkg and rpm) or a package management utility build on top of them (apt,
+aptitude, dnf/yum, zypper, ...). Be aware that the packages generated using
+these two make targets are designed to work on various distributions utilizing
+those formats, they thus will sometimes behave differently than your
+distribution's kernel packages.
+
+[:ref:`back to step-by-step guide <build_bissbs>`]
+
+.. _install_bisref:
+
+Put the kernel in place
+~~~~~~~~~~~~~~~~~~~~~~~
+
+ *Install the kernel you just built.* [:ref:`... <install_bissbs>`]
+
+What you need to do after executing the command in the step-by-step guide
+depends on the existence and the implementation of ``/sbin/installkernel``
+executable on your distribution.
+
+If installkernel is found, the kernel's build system will delegate the actual
+installation of your kernel image to this executable, which then performs some
+or all of these tasks:
+
+* On almost all Linux distributions installkernel will store your kernel's
+ image in /boot/, usually as '/boot/vmlinuz-<kernelrelease_id>'; often it will
+ put a 'System.map-<kernelrelease_id>' alongside it.
+
+* On most distributions installkernel will then generate an 'initramfs'
+ (sometimes also called 'initrd'), which usually are stored as
+ '/boot/initramfs-<kernelrelease_id>.img' or
+ '/boot/initrd-<kernelrelease_id>'. Commodity distributions rely on this file
+ for booting, hence ensure to execute the make target 'modules_install' first,
+ as your distribution's initramfs generator otherwise will be unable to find
+ the modules that go into the image.
+
+* On some distributions installkernel will then add an entry for your kernel
+ to your bootloader's configuration.
+
+You have to take care of some or all of the tasks yourself, if your
+distribution lacks an installkernel script or does only handle part of them.
+Consult the distribution's documentation for details. If in doubt, install the
+kernel manually::
+
+ sudo install -m 0600 $(make -s image_name) /boot/vmlinuz-$(make -s kernelrelease)
+ sudo install -m 0600 System.map /boot/System.map-$(make -s kernelrelease)
+
+Now generate your initramfs using the tools your distribution provides for this
+process. Afterwards add your kernel to your bootloader configuration and reboot.
+
+[:ref:`back to step-by-step guide <install_bissbs>`]
+
+.. _storagespace_bisref:
+
+Storage requirements per kernel
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+ *Check how much storage space the kernel, its modules, and other related files
+ like the initramfs consume.* [:ref:`... <storagespace_bissbs>`]
+
+The kernels built during a bisection consume quite a bit of space in /boot/ and
+/lib/modules/, especially if you enabled debug symbols. That makes it easy to
+fill up volumes during a bisection -- and due to that even kernels which used to
+work earlier might fail to boot. To prevent that you will need to know how much
+space each installed kernel typically requires.
+
+Note, most of the time the pattern '/boot/*$(make -s kernelrelease)*' used in
+the guide will match all files needed to boot your kernel -- but neither the
+path nor the naming scheme are mandatory. On some distributions you thus will
+need to look in different places.
+
+[:ref:`back to step-by-step guide <storagespace_bissbs>`]
+
+.. _tainted_bisref:
+
+Check if your newly built kernel considers itself 'tainted'
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+ *Check if the kernel marked itself as 'tainted'.*
+ [:ref:`... <tainted_bissbs>`]
+
+Linux marks itself as tainted when something happens that potentially leads to
+follow-up errors that look totally unrelated. That is why developers might
+ignore or react scantly to reports from tainted kernels -- unless of course the
+kernel set the flag right when the reported bug occurred.
+
+That's why you want check why a kernel is tainted as explained in
+Documentation/admin-guide/tainted-kernels.rst; doing so is also in your own
+interest, as your testing might be flawed otherwise.
+
+[:ref:`back to step-by-step guide <tainted_bissbs>`]
+
+.. _recheckbroken_bisref:
+
+Check the kernel built from a recent mainline codebase
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+ *Verify if your bug occurs with the newly built kernel.*
+ [:ref:`... <recheckbroken_bissbs>`]
+
+There are a couple of reasons why your bug or regression might not show up with
+the kernel you built from the latest codebase. These are the most frequent:
+
+* The bug was fixed meanwhile.
+
+* What you suspected to be a regression was caused by a change in the build
+ configuration the provider of your kernel carried out.
+
+* Your problem might be a race condition that does not show up with your kernel;
+ the trimmed build configuration, a different setting for debug symbols, the
+ compiler used, and various other things can cause this.
+
+* In case you encountered the regression with a stable/longterm kernel it might
+ be a problem that is specific to that series; the next step in this guide will
+ check this.
+
+[:ref:`back to step-by-step guide <recheckbroken_bissbs>`]
+
+.. _recheckstablebroken_bisref:
+
+Check the kernel built from the latest stable/longterm codebase
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+ *Are you facing a regression within a stable/longterm release, but failed to
+ reproduce it with the kernel you just built using the latest mainline sources?
+ Then check if the latest codebase for the particular series might already fix
+ the problem.* [:ref:`... <recheckstablebroken_bissbs>`]
+
+If this kernel does not show the regression either, there most likely is no need
+for a bisection.
+
+[:ref:`back to step-by-step guide <recheckstablebroken_bissbs>`]
+
+.. _introworkingcheck_bisref:
+
+Ensure the 'good' version is really working well
+------------------------------------------------
+
+ *Check if the kernels you build work fine.*
+ [:ref:`... <introworkingcheck_bissbs>`]
+
+This section will reestablish a known working base. Skipping it might be
+appealing, but is usually a bad idea, as it does something important:
+
+It will ensure the .config file you prepared earlier actually works as expected.
+That is in your own interest, as trimming the configuration is not foolproof --
+and you might be building and testing ten or more kernels for nothing before
+starting to suspect something might be wrong with the build configuration.
+
+That alone is reason enough to spend the time on this, but not the only reason.
+
+Many readers of this guide normally run kernels that are patched, use add-on
+modules, or both. Those kernels thus are not considered 'vanilla' -- therefore
+it's possible that the thing that regressed might never have worked in vanilla
+builds of the 'good' version in the first place.
+
+There is a third reason for those that noticed a regression between
+stable/longterm kernels of different series (e.g. 6.0.13..6.1.5): it will
+ensure the kernel version you assumed to be 'good' earlier in the process (e.g.
+6.0) actually is working.
+
+[:ref:`back to step-by-step guide <introworkingcheck_bissbs>`]
+
+.. _recheckworking_bisref:
+
+Build your own version of the 'good' kernel
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+ *Build your own variant of the working kernel and check if the feature that
+ regressed works as expected with it.* [:ref:`... <recheckworking_bissbs>`]
+
+In case the feature that broke with newer kernels does not work with your first
+self-built kernel, find and resolve the cause before moving on. There are a
+multitude of reasons why this might happen. Some ideas where to look:
+
+* Check the taint status and the output of ``dmesg``, maybe something unrelated
+ went wrong.
+
+* Maybe localmodconfig did something odd and disabled the module required to
+ test the feature? Then you might want to recreate a .config file based on the
+ one from the last working kernel and skip trimming it down; manually disabling
+ some features in the .config might work as well to reduce the build time.
+
+* Maybe it's not a kernel regression and something that is caused by some fluke,
+ a broken initramfs (also known as initrd), new firmware files, or an updated
+ userland software?
+
+* Maybe it was a feature added to your distributor's kernel which vanilla Linux
+ at that point never supported?
+
+Note, if you found and fixed problems with the .config file, you want to use it
+to build another kernel from the latest codebase, as your earlier tests with
+mainline and the latest version from an affected stable/longterm series were
+most likely flawed.
+
+[:ref:`back to step-by-step guide <recheckworking_bissbs>`]
+
+Perform a bisection and validate the result
+-------------------------------------------
+
+ *With all the preparations and precaution builds taken care of, you are now
+ ready to begin the bisection.* [:ref:`... <introbisect_bissbs>`]
+
+The steps in this segment perform and validate the bisection.
+
+[:ref:`back to step-by-step guide <introbisect_bissbs>`].
+
+.. _bisectstart_bisref:
+
+Start the bisection
+~~~~~~~~~~~~~~~~~~~
+
+ *Start the bisection and tell Git about the versions earlier established as
+ 'good' and 'bad'.* [:ref:`... <bisectstart_bissbs>`]
+
+This will start the bisection process; the last of the commands will make Git
+check out a commit round about half-way between the 'good' and the 'bad' changes
+for you to test.
+
+[:ref:`back to step-by-step guide <bisectstart_bissbs>`]
+
+.. _bisectbuild_bisref:
+
+Build a kernel from the bisection point
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+ *Build, install, and boot a kernel from the code Git checked out using the
+ same commands you used earlier.* [:ref:`... <bisectbuild_bissbs>`]
+
+There are two things worth of note here:
+
+* Occasionally building the kernel will fail or it might not boot due some
+ problem in the code at the bisection point. In that case run this command::
+
+ git bisect skip
+
+ Git will then check out another commit nearby which with a bit of luck should
+ work better. Afterwards restart executing this step.
+
+* Those slightly odd looking version identifiers can happen during bisections,
+ because the Linux kernel subsystems prepare their changes for a new mainline
+ release (say 6.2) before its predecessor (e.g. 6.1) is finished. They thus
+ base them on a somewhat earlier point like 6.1-rc1 or even 6.0 -- and then
+ get merged for 6.2 without rebasing nor squashing them once 6.1 is out. This
+ leads to those slightly odd looking version identifiers coming up during
+ bisections.
+
+[:ref:`back to step-by-step guide <bisectbuild_bissbs>`]
+
+.. _bisecttest_bisref:
+
+Bisection checkpoint
+~~~~~~~~~~~~~~~~~~~~
+
+ *Check if the feature that regressed works in the kernel you just built.*
+ [:ref:`... <bisecttest_bissbs>`]
+
+Ensure what you tell Git is accurate: getting it wrong just one time will bring
+the rest of the bisection totally off course, hence all testing after that point
+will be for nothing.
+
+[:ref:`back to step-by-step guide <bisecttest_bissbs>`]
+
+.. _bisectlog_bisref:
+
+Put the bisection log away
+~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+ *Store Git's bisection log and the current .config file in a safe place.*
+ [:ref:`... <bisectlog_bissbs>`]
+
+As indicated above: declaring just one kernel wrongly as 'good' or 'bad' will
+render the end result of a bisection useless. In that case you'd normally have
+to restart the bisection from scratch. The log can prevent that, as it might
+allow someone to point out where a bisection likely went sideways -- and then
+instead of testing ten or more kernels you might only have to build a few to
+resolve things.
+
+The .config file is put aside, as there is a decent chance that developers might
+ask for it after you report the regression.
+
+[:ref:`back to step-by-step guide <bisectlog_bissbs>`]
+
+.. _revert_bisref:
+
+Try reverting the culprit
+~~~~~~~~~~~~~~~~~~~~~~~~~
+
+ *Try reverting the culprit on top of the latest codebase to see if this fixes
+ your regression.* [:ref:`... <revert_bissbs>`]
+
+This is an optional step, but whenever possible one you should try: there is a
+decent chance that developers will ask you to perform this step when you bring
+the bisection result up. So give it a try, you are in the flow already, building
+one more kernel shouldn't be a big deal at this point.
+
+The step-by-step guide covers everything relevant already except one slightly
+rare thing: did you bisected a regression that also happened with mainline using
+a stable/longterm series, but Git failed to revert the commit in mainline? Then
+try to revert the culprit in the affected stable/longterm series -- and if that
+succeeds, test that kernel version instead.
+
+[:ref:`back to step-by-step guide <revert_bissbs>`]
+
+Cleanup steps during and after following this guide
+---------------------------------------------------
+
+ *During and after following this guide you might want or need to remove some
+ of the kernels you installed.* [:ref:`... <introclosure_bissbs>`]
+
+The steps in this section describe clean-up procedures.
+
+[:ref:`back to step-by-step guide <introclosure_bissbs>`].
+
+.. _makeroom_bisref:
+
+Cleaning up during the bisection
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+ *To remove one of the kernels you installed, look up its 'kernelrelease'
+ identifier.* [:ref:`... <makeroom_bissbs>`]
+
+The kernels you install during this process are easy to remove later, as its
+parts are only stored in two places and clearly identifiable. You thus do not
+need to worry to mess up your machine when you install a kernel manually (and
+thus bypass your distribution's packaging system): all parts of your kernels are
+relatively easy to remove later.
+
+One of the two places is a directory in /lib/modules/, which holds the modules
+for each installed kernel. This directory is named after the kernel's release
+identifier; hence, to remove all modules for one of the kernels you built,
+simply remove its modules directory in /lib/modules/.
+
+The other place is /boot/, where typically two up to five files will be placed
+during installation of a kernel. All of them usually contain the release name in
+their file name, but how many files and their exact names depend somewhat on
+your distribution's installkernel executable and its initramfs generator. On
+some distributions the ``kernel-install remove...`` command mentioned in the
+step-by-step guide will delete all of these files for you while also removing
+the menu entry for the kernel from your bootloader configuration. On others you
+have to take care of these two tasks yourself. The following command should
+interactively remove the three main files of a kernel with the release name
+'6.0-rc1-local-gcafec0cacaca0'::
+
+ rm -i /boot/{System.map,vmlinuz,initr}-6.0-rc1-local-gcafec0cacaca0
+
+Afterwards check for other files in /boot/ that have
+'6.0-rc1-local-gcafec0cacaca0' in their name and consider deleting them as well.
+Now remove the boot entry for the kernel from your bootloader's configuration;
+the steps to do that vary quite a bit between Linux distributions.
+
+Note, be careful with wildcards like '*' when deleting files or directories
+for kernels manually: you might accidentally remove files of a 6.0.13 kernel
+when all you want is to remove 6.0 or 6.0.1.
+
+[:ref:`back to step-by-step guide <makeroom_bissbs>`]
+
+Cleaning up after the bisection
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+.. _finishingtouch_bisref:
+
+ *Once you have finished the bisection, do not immediately remove anything
+ you set up, as you might need a few things again.*
+ [:ref:`... <finishingtouch_bissbs>`]
+
+When you are really short of storage space removing the kernels as described in
+the step-by-step guide might not free as much space as you would like. In that
+case consider running ``rm -rf ~/linux/*`` as well now. This will remove the
+build artifacts and the Linux sources, but will leave the Git repository
+(~/linux/.git/) behind -- a simple ``git reset --hard`` thus will bring the
+sources back.
+
+Removing the repository as well would likely be unwise at this point: there
+is a decent chance developers will ask you to build another kernel to
+perform additional tests -- like testing a debug patch or a proposed fix.
+Details on how to perform those can be found in the section :ref:`Optional
+tasks: test reverts, patches, or later versions <introoptional_bissbs>`.
+
+Additional tests are also the reason why you want to keep the
+~/kernel-config-working file around for a few weeks.
+
+[:ref:`back to step-by-step guide <finishingtouch_bissbs>`]
+
+.. _introoptional_bisref:
+
+Test reverts, patches, or later versions
+----------------------------------------
+
+ *While or after reporting a bug, you might want or potentially will be asked
+ to test reverts, patches, proposed fixes, or other versions.*
+ [:ref:`... <introoptional_bissbs>`]
+
+All the commands used in this section should be pretty straight forward, so
+there is not much to add except one thing: when setting a kernel tag as
+instructed, ensure it is not much longer than the one used in the example, as
+problems will arise if the kernelrelease identifier exceeds 63 characters.
+
+[:ref:`back to step-by-step guide <introoptional_bissbs>`].
+
+
+Additional information
+======================
+
+.. _buildhost_bis:
+
+Build kernels on a different machine
+------------------------------------
+
+To compile kernels on another system, slightly alter the step-by-step guide's
+instructions:
+
+* Start following the guide on the machine where you want to install and test
+ the kernels later.
+
+* After executing ':ref:`Boot into the working kernel and briefly use the
+ apparently broken feature <bootworking_bissbs>`', save the list of loaded
+ modules to a file using ``lsmod > ~/test-machine-lsmod``. Then locate the
+ build configuration for the running kernel (see ':ref:`Start defining the
+ build configuration for your kernel <oldconfig_bisref>`' for hints on where
+ to find it) and store it as '~/test-machine-config-working'. Transfer both
+ files to the home directory of your build host.
+
+* Continue the guide on the build host (e.g. with ':ref:`Ensure to have enough
+ free space for building [...] <diskspace_bissbs>`').
+
+* When you reach ':ref:`Start preparing a kernel build configuration[...]
+ <oldconfig_bissbs>`': before running ``make olddefconfig`` for the first time,
+ execute the following command to base your configuration on the one from the
+ test machine's 'working' kernel::
+
+ cp ~/test-machine-config-working ~/linux/.config
+
+* During the next step to ':ref:`disable any apparently superfluous kernel
+ modules <localmodconfig_bissbs>`' use the following command instead::
+
+ yes '' | make localmodconfig LSMOD=~/lsmod_foo-machine localmodconfig
+
+* Continue the guide, but ignore the instructions outlining how to compile,
+ install, and reboot into a kernel every time they come up. Instead build
+ like this::
+
+ cp ~/kernel-config-working .config
+ make olddefconfig &&
+ make -j $(nproc --all) targz-pkg
+
+ This will generate a gzipped tar file whose name is printed in the last
+ line shown; for example, a kernel with the kernelrelease identifier
+ '6.0.0-rc1-local-g928a87efa423' built for x86 machines usually will
+ be stored as '~/linux/linux-6.0.0-rc1-local-g928a87efa423-x86.tar.gz'.
+
+ Copy that file to your test machine's home directory.
+
+* Switch to the test machine to check if you have enough space to hold another
+ kernel. Then extract the file you transferred::
+
+ sudo tar -xvzf ~/linux-6.0.0-rc1-local-g928a87efa423-x86.tar.gz -C /
+
+ Afterwards :ref:`generate the initramfs and add the kernel to your boot
+ loader's configuration <install_bisref>`; on some distributions the following
+ command will take care of both these tasks::
+
+ sudo /sbin/installkernel 6.0.0-rc1-local-g928a87efa423 /boot/vmlinuz-6.0.0-rc1-local-g928a87efa423
+
+ Now reboot and ensure you started the intended kernel.
+
+This approach even works when building for another architecture: just install
+cross-compilers and add the appropriate parameters to every invocation of make
+(e.g. ``make ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- [...]``).
+
+Additional reading material
+---------------------------
+
+* The `man page for 'git bisect' <https://git-scm.com/docs/git-bisect>`_ and
+ `fighting regressions with 'git bisect' <https://git-scm.com/docs/git-bisect-lk2009.html>`_
+ in the Git documentation.
+* `Working with git bisect <https://nathanchance.dev/posts/working-with-git-bisect/>`_
+ from kernel developer Nathan Chancellor.
+* `Using Git bisect to figure out when brokenness was introduced <http://webchick.net/node/99>`_.
+* `Fully automated bisecting with 'git bisect run' <https://lwn.net/Articles/317154>`_.
+
+..
+ end-of-content
+..
+ This document is maintained by Thorsten Leemhuis <linux@leemhuis.info>. If
+ you spot a typo or small mistake, feel free to let him know directly and
+ he'll fix it. You are free to do the same in a mostly informal way if you
+ want to contribute changes to the text -- but for copyright reasons please CC
+ linux-doc@vger.kernel.org and 'sign-off' your contribution as
+ Documentation/process/submitting-patches.rst explains in the section 'Sign
+ your work - the Developer's Certificate of Origin'.
+..
+ This text is available under GPL-2.0+ or CC-BY-4.0, as stated at the top
+ of the file. If you want to distribute this text under CC-BY-4.0 only,
+ please use 'The Linux kernel development community' for author attribution
+ and link this as source:
+ https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/plain/Documentation/admin-guide/verify-bugs-and-bisect-regressions.rst
+
+..
+ Note: Only the content of this RST file as found in the Linux kernel sources
+ is available under CC-BY-4.0, as versions of this text that were processed
+ (for example by the kernel's build system) might contain content taken from
+ files which use a more restrictive license.
diff --git a/Documentation/admin-guide/workload-tracing.rst b/Documentation/admin-guide/workload-tracing.rst
index b2e254ec8ee8..35963491b9f1 100644
--- a/Documentation/admin-guide/workload-tracing.rst
+++ b/Documentation/admin-guide/workload-tracing.rst
@@ -82,8 +82,8 @@ Install tools to build Linux kernel and tools in kernel repository.
scripts/ver_linux is a good way to check if your system already has
the necessary tools::
- sudo apt-get build-essentials flex bison yacc
- sudo apt install libelf-dev systemtap-sdt-dev libaudit-dev libslang2-dev libperl-dev libdw-dev
+ sudo apt-get install build-essential flex bison yacc
+ sudo apt install libelf-dev systemtap-sdt-dev libslang2-dev libperl-dev libdw-dev
cscope is a good tool to browse kernel sources. Let's install it now::
@@ -196,11 +196,11 @@ Let’s checkout the latest Linux repository and build cscope database::
cscope -R -p10 # builds cscope.out database before starting browse session
cscope -d -p10 # starts browse session on cscope.out database
-Note: Run "cscope -R -p10" to build the database and c"scope -d -p10" to
-enter into the browsing session. cscope by default cscope.out database.
-To get out of this mode press ctrl+d. -p option is used to specify the
-number of file path components to display. -p10 is optimal for browsing
-kernel sources.
+Note: Run "cscope -R -p10" to build the database and "cscope -d -p10" to
+enter into the browsing session. cscope by default uses the cscope.out
+database. To get out of this mode press ctrl+d. -p option is used to
+specify the number of file path components to display. -p10 is optimal
+for browsing kernel sources.
What is perf and how do we use it?
==================================
diff --git a/Documentation/admin-guide/xfs.rst b/Documentation/admin-guide/xfs.rst
index 3a9c041d7f6c..c85cd327af28 100644
--- a/Documentation/admin-guide/xfs.rst
+++ b/Documentation/admin-guide/xfs.rst
@@ -34,22 +34,6 @@ When mounting an XFS filesystem, the following options are accepted.
to the file. Specifying a fixed ``allocsize`` value turns off
the dynamic behaviour.
- attr2 or noattr2
- The options enable/disable an "opportunistic" improvement to
- be made in the way inline extended attributes are stored
- on-disk. When the new form is used for the first time when
- ``attr2`` is selected (either when setting or removing extended
- attributes) the on-disk superblock feature bit field will be
- updated to reflect this format being in use.
-
- The default behaviour is determined by the on-disk feature
- bit indicating that ``attr2`` behaviour is active. If either
- mount option is set, then that becomes the new default used
- by the filesystem.
-
- CRC enabled filesystems always use the ``attr2`` format, and so
- will reject the ``noattr2`` mount option if it is set.
-
discard or nodiscard (default)
Enable/disable the issuing of commands to let the block
device reclaim space freed by the filesystem. This is
@@ -75,12 +59,6 @@ When mounting an XFS filesystem, the following options are accepted.
across the entire filesystem rather than just on directories
configured to use it.
- ikeep or noikeep (default)
- When ``ikeep`` is specified, XFS does not delete empty inode
- clusters and keeps them around on disk. When ``noikeep`` is
- specified, empty inode clusters are returned to the free
- space pool.
-
inode32 or inode64 (default)
When ``inode32`` is specified, it indicates that XFS limits
inode creation to locations which will not result in inode
@@ -124,6 +102,14 @@ When mounting an XFS filesystem, the following options are accepted.
controls the size of each buffer and so is also relevant to
this case.
+ lifetime (default) or nolifetime
+ Enable data placement based on write life time hints provided
+ by the user. This turns on co-allocation of data of similar
+ life times when statistically favorable to reduce garbage
+ collection cost.
+
+ These options are only available for zoned rt file systems.
+
logbsize=value
Set the size of each in-memory log buffer. The size may be
specified in bytes, or in kilobytes with a "k" suffix.
@@ -143,6 +129,25 @@ When mounting an XFS filesystem, the following options are accepted.
optional, and the log section can be separate from the data
section or contained within it.
+ max_atomic_write=value
+ Set the maximum size of an atomic write. The size may be
+ specified in bytes, in kilobytes with a "k" suffix, in megabytes
+ with a "m" suffix, or in gigabytes with a "g" suffix. The size
+ cannot be larger than the maximum write size, larger than the
+ size of any allocation group, or larger than the size of a
+ remapping operation that the log can complete atomically.
+
+ The default value is to set the maximum I/O completion size
+ to allow each CPU to handle one at a time.
+
+ max_open_zones=value
+ Specify the max number of zones to keep open for writing on a
+ zoned rt device. Many open zones aids file data separation
+ but may impact performance on HDDs.
+
+ If ``max_open_zones`` is not specified, the value is determined
+ by the capabilities and the size of the zoned rt device.
+
noalign
Data allocations will not be aligned at stripe unit
boundaries. This is only relevant to filesystems created
@@ -192,7 +197,7 @@ When mounting an XFS filesystem, the following options are accepted.
are any integer multiple of a valid ``sunit`` value.
Typically the only time these mount options are necessary if
- after an underlying RAID device has had it's geometry
+ after an underlying RAID device has had its geometry
modified, such as adding a new disk to a RAID5 lun and
reshaping it.
@@ -226,9 +231,8 @@ latest version and try again.
The deprecation will take place in two parts. Support for mounting V4
filesystems can now be disabled at kernel build time via Kconfig option.
-The option will default to yes until September 2025, at which time it
-will be changed to default to no. In September 2030, support will be
-removed from the codebase entirely.
+These options were changed to default to no in September 2025. In
+September 2030, support will be removed from the codebase entirely.
Note: Distributors may choose to withdraw V4 format support earlier than
the dates listed above.
@@ -241,8 +245,6 @@ Deprecated Mount Options
============================ ================
Mounting with V4 filesystem September 2030
Mounting ascii-ci filesystem September 2030
-ikeep/noikeep September 2025
-attr2/noattr2 September 2025
============================ ================
@@ -258,6 +260,8 @@ Removed Mount Options
osyncisdsync/osyncisosync v4.0
barrier v4.19
nobarrier v4.19
+ ikeep/noikeep v6.18
+ attr2/noattr2 v6.18
=========================== =======
sysctls
@@ -285,9 +289,6 @@ The following sysctls are available for the XFS filesystem:
removes unused preallocation from clean inodes and releases
the unused space back to the free pool.
- fs.xfs.speculative_cow_prealloc_lifetime
- This is an alias for speculative_prealloc_lifetime.
-
fs.xfs.error_level (Min: 0 Default: 3 Max: 11)
A volume knob for error reporting when internal errors occur.
This will generate detailed messages & backtraces for filesystem
@@ -314,17 +315,6 @@ The following sysctls are available for the XFS filesystem:
This option is intended for debugging only.
- fs.xfs.irix_symlink_mode (Min: 0 Default: 0 Max: 1)
- Controls whether symlinks are created with mode 0777 (default)
- or whether their mode is affected by the umask (irix mode).
-
- fs.xfs.irix_sgid_inherit (Min: 0 Default: 0 Max: 1)
- Controls files created in SGID directories.
- If the group ID of the new file does not match the effective group
- ID or one of the supplementary group IDs of the parent dir, the
- ISGID bit is cleared if the irix_sgid_inherit compatibility sysctl
- is set.
-
fs.xfs.inherit_sync (Min: 0 Default: 1 Max: 1)
Setting this to "1" will cause the "sync" flag set
by the **xfs_io(8)** chattr command on a directory to be
@@ -360,24 +350,20 @@ The following sysctls are available for the XFS filesystem:
Deprecated Sysctls
==================
-=========================================== ================
- Name Removal Schedule
-=========================================== ================
-fs.xfs.irix_sgid_inherit September 2025
-fs.xfs.irix_symlink_mode September 2025
-fs.xfs.speculative_cow_prealloc_lifetime September 2025
-=========================================== ================
-
+None currently.
Removed Sysctls
===============
-============================= =======
- Name Removed
-============================= =======
- fs.xfs.xfsbufd_centisec v4.0
- fs.xfs.age_buffer_centisecs v4.0
-============================= =======
+========================================== =======
+ Name Removed
+========================================== =======
+ fs.xfs.xfsbufd_centisec v4.0
+ fs.xfs.age_buffer_centisecs v4.0
+ fs.xfs.irix_symlink_mode v6.18
+ fs.xfs.irix_sgid_inherit v6.18
+ fs.xfs.speculative_cow_prealloc_lifetime v6.18
+========================================== =======
Error handling
==============
@@ -542,3 +528,24 @@ The interesting knobs for XFS workqueues are as follows:
nice Relative priority of scheduling the threads. These are the
same nice levels that can be applied to userspace processes.
============ ===========
+
+Zoned Filesystems
+=================
+
+For zoned file systems, the following attributes are exposed in:
+
+ /sys/fs/xfs/<dev>/zoned/
+
+ max_open_zones (Min: 1 Default: Varies Max: UINTMAX)
+ This read-only attribute exposes the maximum number of open zones
+ available for data placement. The value is determined at mount time and
+ is limited by the capabilities of the backing zoned device, file system
+ size and the max_open_zones mount option.
+
+ zonegc_low_space (Min: 0 Default: 0 Max: 100)
+ Define a percentage for how much of the unused space that GC should keep
+ available for writing. A high value will reclaim more of the space
+ occupied by unused blocks, creating a larger buffer against write
+ bursts at the cost of increased write amplification. Regardless
+ of this value, garbage collection will always aim to free a minimum
+ amount of blocks to keep max_open_zones open for data placement purposes.
diff --git a/Documentation/arch/arc/features.rst b/Documentation/arch/arc/features.rst
index b793583d688a..49ff446ff744 100644
--- a/Documentation/arch/arc/features.rst
+++ b/Documentation/arch/arc/features.rst
@@ -1,3 +1,3 @@
.. SPDX-License-Identifier: GPL-2.0
-.. kernel-feat:: $srctree/Documentation/features arc
+.. kernel-feat:: features arc
diff --git a/Documentation/arm/arm.rst b/Documentation/arch/arm/arm.rst
index 99d660fdf73f..7b41b89dd9bd 100644
--- a/Documentation/arm/arm.rst
+++ b/Documentation/arch/arm/arm.rst
@@ -141,7 +141,7 @@ ST506 hard drives
`*configure` harddrive set to 2). I've got an internal 20MB and a great
big external 5.25" FH 64MB drive (who could ever want more :-) ).
- I've just got 240K/s off it (a dd with bs=128k); thats about half of what
+ I've just got 240K/s off it (a dd with bs=128k); that's about half of what
RiscOS gets; but it's a heck of a lot better than the 50K/s I was getting
last week :-)
diff --git a/Documentation/arm/booting.rst b/Documentation/arch/arm/booting.rst
index 5974e37b3d20..5974e37b3d20 100644
--- a/Documentation/arm/booting.rst
+++ b/Documentation/arch/arm/booting.rst
diff --git a/Documentation/arm/cluster-pm-race-avoidance.rst b/Documentation/arch/arm/cluster-pm-race-avoidance.rst
index aa58603d3f28..aa58603d3f28 100644
--- a/Documentation/arm/cluster-pm-race-avoidance.rst
+++ b/Documentation/arch/arm/cluster-pm-race-avoidance.rst
diff --git a/Documentation/arch/arm/features.rst b/Documentation/arch/arm/features.rst
new file mode 100644
index 000000000000..0e76aaf68eca
--- /dev/null
+++ b/Documentation/arch/arm/features.rst
@@ -0,0 +1,3 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+.. kernel-feat:: features arm
diff --git a/Documentation/arm/firmware.rst b/Documentation/arch/arm/firmware.rst
index efd844baec1d..efd844baec1d 100644
--- a/Documentation/arm/firmware.rst
+++ b/Documentation/arch/arm/firmware.rst
diff --git a/Documentation/arm/google/chromebook-boot-flow.rst b/Documentation/arch/arm/google/chromebook-boot-flow.rst
index 36da77684bba..36da77684bba 100644
--- a/Documentation/arm/google/chromebook-boot-flow.rst
+++ b/Documentation/arch/arm/google/chromebook-boot-flow.rst
diff --git a/Documentation/arm/index.rst b/Documentation/arch/arm/index.rst
index fd43502ae924..fd43502ae924 100644
--- a/Documentation/arm/index.rst
+++ b/Documentation/arch/arm/index.rst
diff --git a/Documentation/arm/interrupts.rst b/Documentation/arch/arm/interrupts.rst
index 2ae70e0e9732..2ae70e0e9732 100644
--- a/Documentation/arm/interrupts.rst
+++ b/Documentation/arch/arm/interrupts.rst
diff --git a/Documentation/arm/ixp4xx.rst b/Documentation/arch/arm/ixp4xx.rst
index a57235616294..17aafc610908 100644
--- a/Documentation/arm/ixp4xx.rst
+++ b/Documentation/arch/arm/ixp4xx.rst
@@ -78,9 +78,9 @@ IXP4xx provides two methods of accessing PCI memory space:
1) A direct mapped window from 0x48000000 to 0x4bffffff (64MB).
To access PCI via this space, we simply ioremap() the BAR
into the kernel and we can use the standard read[bwl]/write[bwl]
- macros. This is the preffered method due to speed but it
+ macros. This is the preferred method due to speed but it
limits the system to just 64MB of PCI memory. This can be
- problamatic if using video cards and other memory-heavy devices.
+ problematic if using video cards and other memory-heavy devices.
2) If > 64MB of memory space is required, the IXP4xx can be
configured to use indirect registers to access PCI This allows
diff --git a/Documentation/arm/kernel_mode_neon.rst b/Documentation/arch/arm/kernel_mode_neon.rst
index 9bfb71a2a9b9..9bfb71a2a9b9 100644
--- a/Documentation/arm/kernel_mode_neon.rst
+++ b/Documentation/arch/arm/kernel_mode_neon.rst
diff --git a/Documentation/arm/kernel_user_helpers.rst b/Documentation/arch/arm/kernel_user_helpers.rst
index eb6f3d916622..eb6f3d916622 100644
--- a/Documentation/arm/kernel_user_helpers.rst
+++ b/Documentation/arch/arm/kernel_user_helpers.rst
diff --git a/Documentation/arm/keystone/knav-qmss.rst b/Documentation/arch/arm/keystone/knav-qmss.rst
index 7f7638d80b42..7f7638d80b42 100644
--- a/Documentation/arm/keystone/knav-qmss.rst
+++ b/Documentation/arch/arm/keystone/knav-qmss.rst
diff --git a/Documentation/arm/keystone/overview.rst b/Documentation/arch/arm/keystone/overview.rst
index cd90298c493c..cd90298c493c 100644
--- a/Documentation/arm/keystone/overview.rst
+++ b/Documentation/arch/arm/keystone/overview.rst
diff --git a/Documentation/arm/marvell.rst b/Documentation/arch/arm/marvell.rst
index 3d369a566038..3d369a566038 100644
--- a/Documentation/arm/marvell.rst
+++ b/Documentation/arch/arm/marvell.rst
diff --git a/Documentation/arm/mem_alignment.rst b/Documentation/arch/arm/mem_alignment.rst
index aa22893b62bc..64bd77959300 100644
--- a/Documentation/arm/mem_alignment.rst
+++ b/Documentation/arch/arm/mem_alignment.rst
@@ -12,7 +12,7 @@ ones.
Of course this is a bad idea to rely on the alignment trap to perform
unaligned memory access in general. If those access are predictable, you
-are better to use the macros provided by include/asm/unaligned.h. The
+are better to use the macros provided by include/linux/unaligned.h. The
alignment trap can fixup misaligned access for the exception cases, but at
a high performance cost. It better be rare.
diff --git a/Documentation/arm/memory.rst b/Documentation/arch/arm/memory.rst
index 0cb1e2938823..0cb1e2938823 100644
--- a/Documentation/arm/memory.rst
+++ b/Documentation/arch/arm/memory.rst
diff --git a/Documentation/arm/microchip.rst b/Documentation/arch/arm/microchip.rst
index e721d855f2c9..e721d855f2c9 100644
--- a/Documentation/arm/microchip.rst
+++ b/Documentation/arch/arm/microchip.rst
diff --git a/Documentation/arm/netwinder.rst b/Documentation/arch/arm/netwinder.rst
index 8eab66caa2ac..8eab66caa2ac 100644
--- a/Documentation/arm/netwinder.rst
+++ b/Documentation/arch/arm/netwinder.rst
diff --git a/Documentation/arm/nwfpe/index.rst b/Documentation/arch/arm/nwfpe/index.rst
index 3c4d2f9aa10e..3c4d2f9aa10e 100644
--- a/Documentation/arm/nwfpe/index.rst
+++ b/Documentation/arch/arm/nwfpe/index.rst
diff --git a/Documentation/arm/nwfpe/netwinder-fpe.rst b/Documentation/arch/arm/nwfpe/netwinder-fpe.rst
index cbb320960fc4..cbb320960fc4 100644
--- a/Documentation/arm/nwfpe/netwinder-fpe.rst
+++ b/Documentation/arch/arm/nwfpe/netwinder-fpe.rst
diff --git a/Documentation/arm/nwfpe/notes.rst b/Documentation/arch/arm/nwfpe/notes.rst
index 102e55af8439..102e55af8439 100644
--- a/Documentation/arm/nwfpe/notes.rst
+++ b/Documentation/arch/arm/nwfpe/notes.rst
diff --git a/Documentation/arm/nwfpe/nwfpe.rst b/Documentation/arch/arm/nwfpe/nwfpe.rst
index 35cd90dacbff..35cd90dacbff 100644
--- a/Documentation/arm/nwfpe/nwfpe.rst
+++ b/Documentation/arch/arm/nwfpe/nwfpe.rst
diff --git a/Documentation/arm/nwfpe/todo.rst b/Documentation/arch/arm/nwfpe/todo.rst
index 393f11b14540..393f11b14540 100644
--- a/Documentation/arm/nwfpe/todo.rst
+++ b/Documentation/arch/arm/nwfpe/todo.rst
diff --git a/Documentation/arm/omap/dss.rst b/Documentation/arch/arm/omap/dss.rst
index a40c4d9c717a..a40c4d9c717a 100644
--- a/Documentation/arm/omap/dss.rst
+++ b/Documentation/arch/arm/omap/dss.rst
diff --git a/Documentation/arm/omap/index.rst b/Documentation/arch/arm/omap/index.rst
index 8b365b212e49..8b365b212e49 100644
--- a/Documentation/arm/omap/index.rst
+++ b/Documentation/arch/arm/omap/index.rst
diff --git a/Documentation/arm/omap/omap.rst b/Documentation/arch/arm/omap/omap.rst
index f440c0f4613f..f440c0f4613f 100644
--- a/Documentation/arm/omap/omap.rst
+++ b/Documentation/arch/arm/omap/omap.rst
diff --git a/Documentation/arm/omap/omap_pm.rst b/Documentation/arch/arm/omap/omap_pm.rst
index a335e4c8ce2c..a335e4c8ce2c 100644
--- a/Documentation/arm/omap/omap_pm.rst
+++ b/Documentation/arch/arm/omap/omap_pm.rst
diff --git a/Documentation/arm/porting.rst b/Documentation/arch/arm/porting.rst
index bd21958bdb2d..bd21958bdb2d 100644
--- a/Documentation/arm/porting.rst
+++ b/Documentation/arch/arm/porting.rst
diff --git a/Documentation/arm/pxa/mfp.rst b/Documentation/arch/arm/pxa/mfp.rst
index ac34e5d7ee44..ac34e5d7ee44 100644
--- a/Documentation/arm/pxa/mfp.rst
+++ b/Documentation/arch/arm/pxa/mfp.rst
diff --git a/Documentation/arm/sa1100/assabet.rst b/Documentation/arch/arm/sa1100/assabet.rst
index a761e128fb08..a761e128fb08 100644
--- a/Documentation/arm/sa1100/assabet.rst
+++ b/Documentation/arch/arm/sa1100/assabet.rst
diff --git a/Documentation/arm/sa1100/cerf.rst b/Documentation/arch/arm/sa1100/cerf.rst
index 7fa71b609bf9..7fa71b609bf9 100644
--- a/Documentation/arm/sa1100/cerf.rst
+++ b/Documentation/arch/arm/sa1100/cerf.rst
diff --git a/Documentation/arm/sa1100/index.rst b/Documentation/arch/arm/sa1100/index.rst
index c9aed43280ff..c9aed43280ff 100644
--- a/Documentation/arm/sa1100/index.rst
+++ b/Documentation/arch/arm/sa1100/index.rst
diff --git a/Documentation/arm/sa1100/lart.rst b/Documentation/arch/arm/sa1100/lart.rst
index 94c0568d1095..94c0568d1095 100644
--- a/Documentation/arm/sa1100/lart.rst
+++ b/Documentation/arch/arm/sa1100/lart.rst
diff --git a/Documentation/arm/sa1100/serial_uart.rst b/Documentation/arch/arm/sa1100/serial_uart.rst
index ea983642b9be..ea983642b9be 100644
--- a/Documentation/arm/sa1100/serial_uart.rst
+++ b/Documentation/arch/arm/sa1100/serial_uart.rst
diff --git a/Documentation/arm/samsung/bootloader-interface.rst b/Documentation/arch/arm/samsung/bootloader-interface.rst
index a56f325dae78..a56f325dae78 100644
--- a/Documentation/arm/samsung/bootloader-interface.rst
+++ b/Documentation/arch/arm/samsung/bootloader-interface.rst
diff --git a/Documentation/arm/samsung/clksrc-change-registers.awk b/Documentation/arch/arm/samsung/clksrc-change-registers.awk
index 7be1b8aa7cd9..7be1b8aa7cd9 100755
--- a/Documentation/arm/samsung/clksrc-change-registers.awk
+++ b/Documentation/arch/arm/samsung/clksrc-change-registers.awk
diff --git a/Documentation/arm/samsung/gpio.rst b/Documentation/arch/arm/samsung/gpio.rst
index 27fae0d50361..27fae0d50361 100644
--- a/Documentation/arm/samsung/gpio.rst
+++ b/Documentation/arch/arm/samsung/gpio.rst
diff --git a/Documentation/arm/samsung/index.rst b/Documentation/arch/arm/samsung/index.rst
index 8142cce3d23e..8142cce3d23e 100644
--- a/Documentation/arm/samsung/index.rst
+++ b/Documentation/arch/arm/samsung/index.rst
diff --git a/Documentation/arm/samsung/overview.rst b/Documentation/arch/arm/samsung/overview.rst
index 8b15a190169b..8b15a190169b 100644
--- a/Documentation/arm/samsung/overview.rst
+++ b/Documentation/arch/arm/samsung/overview.rst
diff --git a/Documentation/arm/setup.rst b/Documentation/arch/arm/setup.rst
index 8e12ef3fb9a7..8e12ef3fb9a7 100644
--- a/Documentation/arm/setup.rst
+++ b/Documentation/arch/arm/setup.rst
diff --git a/Documentation/arm/spear/overview.rst b/Documentation/arch/arm/spear/overview.rst
index 1a77f6b213b6..1a77f6b213b6 100644
--- a/Documentation/arm/spear/overview.rst
+++ b/Documentation/arch/arm/spear/overview.rst
diff --git a/Documentation/arm/sti/overview.rst b/Documentation/arch/arm/sti/overview.rst
index ae16aced800f..ae16aced800f 100644
--- a/Documentation/arm/sti/overview.rst
+++ b/Documentation/arch/arm/sti/overview.rst
diff --git a/Documentation/arm/sti/stih407-overview.rst b/Documentation/arch/arm/sti/stih407-overview.rst
index 027e75bc7b7c..027e75bc7b7c 100644
--- a/Documentation/arm/sti/stih407-overview.rst
+++ b/Documentation/arch/arm/sti/stih407-overview.rst
diff --git a/Documentation/arm/sti/stih418-overview.rst b/Documentation/arch/arm/sti/stih418-overview.rst
index b563c1f4fe5a..b563c1f4fe5a 100644
--- a/Documentation/arm/sti/stih418-overview.rst
+++ b/Documentation/arch/arm/sti/stih418-overview.rst
diff --git a/Documentation/arm/stm32/overview.rst b/Documentation/arch/arm/stm32/overview.rst
index 85cfc8410798..85cfc8410798 100644
--- a/Documentation/arm/stm32/overview.rst
+++ b/Documentation/arch/arm/stm32/overview.rst
diff --git a/Documentation/arm/stm32/stm32-dma-mdma-chaining.rst b/Documentation/arch/arm/stm32/stm32-dma-mdma-chaining.rst
index 2945e0e33104..301aa30890ae 100644
--- a/Documentation/arm/stm32/stm32-dma-mdma-chaining.rst
+++ b/Documentation/arch/arm/stm32/stm32-dma-mdma-chaining.rst
@@ -359,7 +359,7 @@ Driver updates for STM32 DMA-MDMA chaining support in foo driver
descriptor you want a callback to be called at the end of the transfer
(dmaengine_prep_slave_sg()) or the period (dmaengine_prep_dma_cyclic()).
Depending on the direction, set the callback on the descriptor that finishes
- the overal transfer:
+ the overall transfer:
* DMA_DEV_TO_MEM: set the callback on the "MDMA" descriptor
* DMA_MEM_TO_DEV: set the callback on the "DMA" descriptor
@@ -371,7 +371,7 @@ Driver updates for STM32 DMA-MDMA chaining support in foo driver
As STM32 MDMA channel transfer is triggered by STM32 DMA, you must issue
STM32 MDMA channel before STM32 DMA channel.
- If any, your callback will be called to warn you about the end of the overal
+ If any, your callback will be called to warn you about the end of the overall
transfer or the period completion.
Don't forget to terminate both channels. STM32 DMA channel is configured in
diff --git a/Documentation/arm/stm32/stm32f429-overview.rst b/Documentation/arch/arm/stm32/stm32f429-overview.rst
index a7ebe8ea6697..a7ebe8ea6697 100644
--- a/Documentation/arm/stm32/stm32f429-overview.rst
+++ b/Documentation/arch/arm/stm32/stm32f429-overview.rst
diff --git a/Documentation/arm/stm32/stm32f746-overview.rst b/Documentation/arch/arm/stm32/stm32f746-overview.rst
index 78befddc7740..335f0855a858 100644
--- a/Documentation/arm/stm32/stm32f746-overview.rst
+++ b/Documentation/arch/arm/stm32/stm32f746-overview.rst
@@ -15,7 +15,7 @@ It features:
- SD/MMC/SDIO support
- Ethernet controller
- USB OTFG FS & HS controllers
-- I2C, SPI, CAN busses support
+- I2C, SPI, CAN buses support
- Several 16 & 32 bits general purpose timers
- Serial Audio interface
- LCD controller
diff --git a/Documentation/arm/stm32/stm32f769-overview.rst b/Documentation/arch/arm/stm32/stm32f769-overview.rst
index e482980ddf21..ef31aadee68f 100644
--- a/Documentation/arm/stm32/stm32f769-overview.rst
+++ b/Documentation/arch/arm/stm32/stm32f769-overview.rst
@@ -15,7 +15,7 @@ It features:
- SD/MMC/SDIO support*2
- Ethernet controller
- USB OTFG FS & HS controllers
-- I2C*4, SPI*6, CAN*3 busses support
+- I2C*4, SPI*6, CAN*3 buses support
- Several 16 & 32 bits general purpose timers
- Serial Audio interface*2
- LCD controller
diff --git a/Documentation/arm/stm32/stm32h743-overview.rst b/Documentation/arch/arm/stm32/stm32h743-overview.rst
index 4e15f1a42730..7659df24d362 100644
--- a/Documentation/arm/stm32/stm32h743-overview.rst
+++ b/Documentation/arch/arm/stm32/stm32h743-overview.rst
@@ -15,7 +15,7 @@ It features:
- SD/MMC/SDIO support
- Ethernet controller
- USB OTFG FS & HS controllers
-- I2C, SPI, CAN busses support
+- I2C, SPI, CAN buses support
- Several 16 & 32 bits general purpose timers
- Serial Audio interface
- LCD controller
diff --git a/Documentation/arm/stm32/stm32h750-overview.rst b/Documentation/arch/arm/stm32/stm32h750-overview.rst
index 0e51235c9547..be032b77d1f1 100644
--- a/Documentation/arm/stm32/stm32h750-overview.rst
+++ b/Documentation/arch/arm/stm32/stm32h750-overview.rst
@@ -15,7 +15,7 @@ It features:
- SD/MMC/SDIO support
- Ethernet controller
- USB OTFG FS & HS controllers
-- I2C, SPI, CAN busses support
+- I2C, SPI, CAN buses support
- Several 16 & 32 bits general purpose timers
- Serial Audio interface
- LCD controller
diff --git a/Documentation/arm/stm32/stm32mp13-overview.rst b/Documentation/arch/arm/stm32/stm32mp13-overview.rst
index 3bb9492dad49..b5e9589fb06f 100644
--- a/Documentation/arm/stm32/stm32mp13-overview.rst
+++ b/Documentation/arch/arm/stm32/stm32mp13-overview.rst
@@ -24,7 +24,7 @@ More details:
- ADC/DAC
- USB EHCI/OHCI controllers
- USB OTG
-- I2C, SPI, CAN busses support
+- I2C, SPI, CAN buses support
- Several general purpose timers
- Serial Audio interface
- LCD controller
diff --git a/Documentation/arm/stm32/stm32mp151-overview.rst b/Documentation/arch/arm/stm32/stm32mp151-overview.rst
index f42a2ac309c0..b58c256ede9a 100644
--- a/Documentation/arm/stm32/stm32mp151-overview.rst
+++ b/Documentation/arch/arm/stm32/stm32mp151-overview.rst
@@ -23,7 +23,7 @@ More details:
- ADC/DAC
- USB EHCI/OHCI controllers
- USB OTG
-- I2C, SPI busses support
+- I2C, SPI buses support
- Several general purpose timers
- Serial Audio interface
- LCD-TFT controller
diff --git a/Documentation/arm/stm32/stm32mp157-overview.rst b/Documentation/arch/arm/stm32/stm32mp157-overview.rst
index f62fdc8e7d8d..f62fdc8e7d8d 100644
--- a/Documentation/arm/stm32/stm32mp157-overview.rst
+++ b/Documentation/arch/arm/stm32/stm32mp157-overview.rst
diff --git a/Documentation/arm/sunxi.rst b/Documentation/arch/arm/sunxi.rst
index b85d1e2f2d47..b85d1e2f2d47 100644
--- a/Documentation/arm/sunxi.rst
+++ b/Documentation/arch/arm/sunxi.rst
diff --git a/Documentation/arm/sunxi/clocks.rst b/Documentation/arch/arm/sunxi/clocks.rst
index 23bd03f3e21f..dfe6d4887210 100644
--- a/Documentation/arm/sunxi/clocks.rst
+++ b/Documentation/arch/arm/sunxi/clocks.rst
@@ -5,7 +5,7 @@ Frequently asked questions about the sunxi clock system
This document contains useful bits of information that people tend to ask
about the sunxi clock system, as well as accompanying ASCII art when adequate.
-Q: Why is the main 24MHz oscillator gatable? Wouldn't that break the
+Q: Why is the main 24MHz oscillator gateable? Wouldn't that break the
system?
A: The 24MHz oscillator allows gating to save power. Indeed, if gated
diff --git a/Documentation/arm/swp_emulation.rst b/Documentation/arch/arm/swp_emulation.rst
index 6a608a9c3715..bf205e3de36e 100644
--- a/Documentation/arm/swp_emulation.rst
+++ b/Documentation/arch/arm/swp_emulation.rst
@@ -1,7 +1,7 @@
Software emulation of deprecated SWP instruction (CONFIG_SWP_EMULATE)
---------------------------------------------------------------------
-ARMv6 architecture deprecates use of the SWP/SWPB instructions, and recommeds
+ARMv6 architecture deprecates use of the SWP/SWPB instructions, and recommends
moving to the load-locked/store-conditional instructions LDREX and STREX.
ARMv7 multiprocessing extensions introduce the ability to disable these
diff --git a/Documentation/arm/tcm.rst b/Documentation/arch/arm/tcm.rst
index 1dc6c39220f9..7ce17a248af9 100644
--- a/Documentation/arm/tcm.rst
+++ b/Documentation/arch/arm/tcm.rst
@@ -71,7 +71,7 @@ in <asm/tcm.h>. Using this interface it is possible to:
- Have the remaining TCM RAM added to a special
allocation pool with gen_pool_create() and gen_pool_add()
- and provice tcm_alloc() and tcm_free() for this
+ and provide tcm_alloc() and tcm_free() for this
memory. Such a heap is great for things like saving
device state when shutting off device power domains.
diff --git a/Documentation/arm/uefi.rst b/Documentation/arch/arm/uefi.rst
index baebe688a006..2b7ad9bd7cd2 100644
--- a/Documentation/arm/uefi.rst
+++ b/Documentation/arch/arm/uefi.rst
@@ -50,7 +50,7 @@ The stub populates the FDT /chosen node with (and the kernel scans for) the
following parameters:
========================== ====== ===========================================
-Name Size Description
+Name Type Description
========================== ====== ===========================================
linux,uefi-system-table 64-bit Physical address of the UEFI System Table.
@@ -67,4 +67,6 @@ linux,uefi-mmap-desc-ver 32-bit Version of the mmap descriptor format.
kaslr-seed 64-bit Entropy used to randomize the kernel image
base address location.
+
+bootargs String Kernel command line
========================== ====== ===========================================
diff --git a/Documentation/arm/vfp/release-notes.rst b/Documentation/arch/arm/vfp/release-notes.rst
index c6b04937cee3..c6b04937cee3 100644
--- a/Documentation/arm/vfp/release-notes.rst
+++ b/Documentation/arch/arm/vfp/release-notes.rst
diff --git a/Documentation/arm/vlocks.rst b/Documentation/arch/arm/vlocks.rst
index a40a1742110b..737aa8661a21 100644
--- a/Documentation/arm/vlocks.rst
+++ b/Documentation/arch/arm/vlocks.rst
@@ -155,7 +155,7 @@ the basic algorithm:
optimisation.
If there are too many CPUs to read the currently_voting array in
- one transaction then multiple transations are still required. The
+ one transaction then multiple transactions are still required. The
implementation uses a simple loop of word-sized loads for this
case. The number of transactions is still fewer than would be
required if bytes were loaded individually.
diff --git a/Documentation/arm64/acpi_object_usage.rst b/Documentation/arch/arm64/acpi_object_usage.rst
index 484ef9676653..06d8a87971ef 100644
--- a/Documentation/arm64/acpi_object_usage.rst
+++ b/Documentation/arch/arm64/acpi_object_usage.rst
@@ -17,16 +17,37 @@ For ACPI on arm64, tables also fall into the following categories:
- Recommended: BERT, EINJ, ERST, HEST, PCCT, SSDT
- - Optional: BGRT, CPEP, CSRT, DBG2, DRTM, ECDT, FACS, FPDT, IBFT,
- IORT, MCHI, MPST, MSCT, NFIT, PMTT, RASF, SBST, SLIT, SPMI, SRAT,
- STAO, TCPA, TPM2, UEFI, XENV
+ - Optional: AGDI, BGRT, CEDT, CPEP, CSRT, DBG2, DRTM, ECDT, FACS, FPDT,
+ HMAT, IBFT, IORT, MCHI, MPAM, MPST, MSCT, NFIT, PMTT, PPTT, RASF, SBST,
+ SDEI, SLIT, SPMI, SRAT, STAO, TCPA, TPM2, UEFI, XENV
- - Not supported: BOOT, DBGP, DMAR, ETDT, HPET, IVRS, LPIT, MSDM, OEMx,
- PSDT, RSDT, SLIC, WAET, WDAT, WDRT, WPBT
+ - Not supported: AEST, APMT, BOOT, DBGP, DMAR, ETDT, HPET, IVRS, LPIT,
+ MSDM, OEMx, PDTT, PSDT, RAS2, RSDT, SLIC, WAET, WDAT, WDRT, WPBT
====== ========================================================================
Table Usage for ARMv8 Linux
====== ========================================================================
+AEST Signature Reserved (signature == "AEST")
+
+ **Arm Error Source Table**
+
+ This table informs the OS of any error nodes in the system that are
+ compliant with the Arm RAS architecture.
+
+AGDI Signature Reserved (signature == "AGDI")
+
+ **Arm Generic diagnostic Dump and Reset Device Interface Table**
+
+ This table describes a non-maskable event, that is used by the platform
+ firmware, to request the OS to generate a diagnostic dump and reset the device.
+
+APMT Signature Reserved (signature == "APMT")
+
+ **Arm Performance Monitoring Table**
+
+ This table describes the properties of PMU support implemented by
+ components in the system.
+
BERT Section 18.3 (signature == "BERT")
**Boot Error Record Table**
@@ -47,6 +68,13 @@ BGRT Section 5.2.22 (signature == "BGRT")
Optional, not currently supported, with no real use-case for an
ARM server.
+CEDT Signature Reserved (signature == "CEDT")
+
+ **CXL Early Discovery Table**
+
+ This table allows the OS to discover any CXL Host Bridges and the Host
+ Bridge registers.
+
CPEP Section 5.2.18 (signature == "CPEP")
**Corrected Platform Error Polling table**
@@ -184,6 +212,15 @@ HEST Section 18.3.2 (signature == "HEST")
Must be supplied if RAS support is provided by the platform. It
is recommended this table be supplied.
+HMAT Section 5.2.28 (signature == "HMAT")
+
+ **Heterogeneous Memory Attribute Table**
+
+ This table describes the memory attributes, such as memory side cache
+ attributes and bandwidth and latency details, related to Memory Proximity
+ Domains. The OS uses this information to optimize the system memory
+ configuration.
+
HPET Signature Reserved (signature == "HPET")
**High Precision Event timer Table**
@@ -241,6 +278,13 @@ MCHI Signature Reserved (signature == "MCHI")
Optional, not currently supported.
+MPAM Signature Reserved (signature == "MPAM")
+
+ **Memory Partitioning And Monitoring table**
+
+ This table allows the OS to discover the MPAM controls implemented by
+ the subsystems.
+
MPST Section 5.2.21 (signature == "MPST")
**Memory Power State Table**
@@ -281,18 +325,39 @@ PCCT Section 14.1 (signature == "PCCT)
Recommend for use on arm64; use of PCC is recommended when using CPPC
to control performance and power for platform processors.
+PDTT Section 5.2.29 (signature == "PDTT")
+
+ **Platform Debug Trigger Table**
+
+ This table describes PCC channels used to gather debug logs of
+ non-architectural features.
+
+
PMTT Section 5.2.21.12 (signature == "PMTT")
**Platform Memory Topology Table**
Optional, not currently supported.
+PPTT Section 5.2.30 (signature == "PPTT")
+
+ **Processor Properties Topology Table**
+
+ This table provides the processor and cache topology.
+
PSDT Section 5.2.11.3 (signature == "PSDT")
**Persistent System Description Table**
Obsolete table, will not be supported.
+RAS2 Section 5.2.21 (signature == "RAS2")
+
+ **RAS Features 2 table**
+
+ This table provides interfaces for the RAS capabilities implemented in
+ the platform.
+
RASF Section 5.2.20 (signature == "RASF")
**RAS Feature table**
@@ -318,6 +383,12 @@ SBST Section 5.2.14 (signature == "SBST")
Optional, not currently supported.
+SDEI Signature Reserved (signature == "SDEI")
+
+ **Software Delegated Exception Interface table**
+
+ This table advertises the presence of the SDEI interface.
+
SLIC Signature Reserved (signature == "SLIC")
**Software LIcensing table**
diff --git a/Documentation/arch/arm64/amu.rst b/Documentation/arch/arm64/amu.rst
new file mode 100644
index 000000000000..ac1b3f0e211d
--- /dev/null
+++ b/Documentation/arch/arm64/amu.rst
@@ -0,0 +1,119 @@
+.. _amu_index:
+
+=======================================================
+Activity Monitors Unit (AMU) extension in AArch64 Linux
+=======================================================
+
+Author: Ionela Voinescu <ionela.voinescu@arm.com>
+
+Date: 2019-09-10
+
+This document briefly describes the provision of Activity Monitors Unit
+support in AArch64 Linux.
+
+
+Architecture overview
+---------------------
+
+The activity monitors extension is an optional extension introduced by the
+ARMv8.4 CPU architecture.
+
+The activity monitors unit, implemented in each CPU, provides performance
+counters intended for system management use. The AMU extension provides a
+system register interface to the counter registers and also supports an
+optional external memory-mapped interface.
+
+Version 1 of the Activity Monitors architecture implements a counter group
+of four fixed and architecturally defined 64-bit event counters.
+
+ - CPU cycle counter: increments at the frequency of the CPU.
+ - Constant counter: increments at the fixed frequency of the system
+ clock.
+ - Instructions retired: increments with every architecturally executed
+ instruction.
+ - Memory stall cycles: counts instruction dispatch stall cycles caused by
+ misses in the last level cache within the clock domain.
+
+When in WFI or WFE these counters do not increment.
+
+The Activity Monitors architecture provides space for up to 16 architected
+event counters. Future versions of the architecture may use this space to
+implement additional architected event counters.
+
+Additionally, version 1 implements a counter group of up to 16 auxiliary
+64-bit event counters.
+
+On cold reset all counters reset to 0.
+
+
+Basic support
+-------------
+
+The kernel can safely run a mix of CPUs with and without support for the
+activity monitors extension. Therefore, when CONFIG_ARM64_AMU_EXTN is
+selected we unconditionally enable the capability to allow any late CPU
+(secondary or hotplugged) to detect and use the feature.
+
+When the feature is detected on a CPU, we flag the availability of the
+feature but this does not guarantee the correct functionality of the
+counters, only the presence of the extension.
+
+Firmware (code running at higher exception levels, e.g. arm-tf) support is
+needed to:
+
+ - Enable access for lower exception levels (EL2 and EL1) to the AMU
+ registers.
+ - Enable the counters. If not enabled these will read as 0.
+ - Save/restore the counters before/after the CPU is being put/brought up
+ from the 'off' power state.
+
+When using kernels that have this feature enabled but boot with broken
+firmware the user may experience panics or lockups when accessing the
+counter registers. Even if these symptoms are not observed, the values
+returned by the register reads might not correctly reflect reality. Most
+commonly, the counters will read as 0, indicating that they are not
+enabled.
+
+If proper support is not provided in firmware it's best to disable
+CONFIG_ARM64_AMU_EXTN. To be noted that for security reasons, this does not
+bypass the setting of AMUSERENR_EL0 to trap accesses from EL0 (userspace) to
+EL1 (kernel). Therefore, firmware should still ensure accesses to AMU registers
+are not trapped in EL2/EL3.
+
+The fixed counters of AMUv1 are accessible through the following system
+register definitions:
+
+ - SYS_AMEVCNTR0_CORE_EL0
+ - SYS_AMEVCNTR0_CONST_EL0
+ - SYS_AMEVCNTR0_INST_RET_EL0
+ - SYS_AMEVCNTR0_MEM_STALL_EL0
+
+Auxiliary platform specific counters can be accessed using
+SYS_AMEVCNTR1_EL0(n), where n is a value between 0 and 15.
+
+Details can be found in: arch/arm64/include/asm/sysreg.h.
+
+
+Userspace access
+----------------
+
+Currently, access from userspace to the AMU registers is disabled due to:
+
+ - Security reasons: they might expose information about code executed in
+ secure mode.
+ - Purpose: AMU counters are intended for system management use.
+
+Also, the presence of the feature is not visible to userspace.
+
+
+Virtualization
+--------------
+
+Currently, access from userspace (EL0) and kernelspace (EL1) on the KVM
+guest side is disabled due to:
+
+ - Security reasons: they might expose information about code executed
+ by other guests or the host.
+
+Any attempt to access the AMU registers will result in an UNDEFINED
+exception being injected into the guest.
diff --git a/Documentation/arm64/arm-acpi.rst b/Documentation/arch/arm64/arm-acpi.rst
index 47ecb9930dde..e59e4505d0d9 100644
--- a/Documentation/arm64/arm-acpi.rst
+++ b/Documentation/arch/arm64/arm-acpi.rst
@@ -1,40 +1,41 @@
-=====================
-ACPI on ARMv8 Servers
-=====================
-
-ACPI can be used for ARMv8 general purpose servers designed to follow
-the ARM SBSA (Server Base System Architecture) [0] and SBBR (Server
-Base Boot Requirements) [1] specifications. Please note that the SBBR
-can be retrieved simply by visiting [1], but the SBSA is currently only
-available to those with an ARM login due to ARM IP licensing concerns.
-
-The ARMv8 kernel implements the reduced hardware model of ACPI version
+===================
+ACPI on Arm systems
+===================
+
+ACPI can be used for Armv8 and Armv9 systems designed to follow
+the BSA (Arm Base System Architecture) [0] and BBR (Arm
+Base Boot Requirements) [1] specifications. Both BSA and BBR are publicly
+accessible documents.
+Arm Servers, in addition to being BSA compliant, comply with a set
+of rules defined in SBSA (Server Base System Architecture) [2].
+
+The Arm kernel implements the reduced hardware model of ACPI version
5.1 or later. Links to the specification and all external documents
it refers to are managed by the UEFI Forum. The specification is
available at http://www.uefi.org/specifications and documents referenced
by the specification can be found via http://www.uefi.org/acpi.
-If an ARMv8 system does not meet the requirements of the SBSA and SBBR,
+If an Arm system does not meet the requirements of the BSA and BBR,
or cannot be described using the mechanisms defined in the required ACPI
specifications, then ACPI may not be a good fit for the hardware.
While the documents mentioned above set out the requirements for building
-industry-standard ARMv8 servers, they also apply to more than one operating
+industry-standard Arm systems, they also apply to more than one operating
system. The purpose of this document is to describe the interaction between
-ACPI and Linux only, on an ARMv8 system -- that is, what Linux expects of
+ACPI and Linux only, on an Arm system -- that is, what Linux expects of
ACPI and what ACPI can expect of Linux.
-Why ACPI on ARM?
+Why ACPI on Arm?
----------------
Before examining the details of the interface between ACPI and Linux, it is
useful to understand why ACPI is being used. Several technologies already
exist in Linux for describing non-enumerable hardware, after all. In this
-section we summarize a blog post [2] from Grant Likely that outlines the
-reasoning behind ACPI on ARMv8 servers. Actually, we snitch a good portion
+section we summarize a blog post [3] from Grant Likely that outlines the
+reasoning behind ACPI on Arm systems. Actually, we snitch a good portion
of the summary text almost directly, to be honest.
-The short form of the rationale for ACPI on ARM is:
+The short form of the rationale for ACPI on Arm is:
- ACPI’s byte code (AML) allows the platform to encode hardware behavior,
while DT explicitly does not support this. For hardware vendors, being
@@ -47,7 +48,7 @@ The short form of the rationale for ACPI on ARM is:
- In the enterprise server environment, ACPI has established bindings (such
as for RAS) which are currently used in production systems. DT does not.
- Such bindings could be defined in DT at some point, but doing so means ARM
+ Such bindings could be defined in DT at some point, but doing so means Arm
and x86 would end up using completely different code paths in both firmware
and the kernel.
@@ -98,7 +99,7 @@ to replace the kernel.
When a Linux driver or subsystem is first implemented using ACPI, it by
definition ends up requiring a specific version of the ACPI specification
--- it's baseline. ACPI firmware must continue to work, even though it may
+-- its baseline. ACPI firmware must continue to work, even though it may
not be optimal, with the earliest kernel version that first provides support
for that baseline version of ACPI. There may be a need for additional drivers,
but adding new functionality (e.g., CPU power management) should not break
@@ -108,7 +109,7 @@ recent version of the kernel.
Relationship with Device Tree
-----------------------------
-ACPI support in drivers and subsystems for ARMv8 should never be mutually
+ACPI support in drivers and subsystems for Arm should never be mutually
exclusive with DT support at compile time.
At boot time the kernel will only use one description method depending on
@@ -121,15 +122,15 @@ time).
Booting using ACPI tables
-------------------------
-The only defined method for passing ACPI tables to the kernel on ARMv8
+The only defined method for passing ACPI tables to the kernel on Arm
is via the UEFI system configuration table. Just so it is explicit, this
means that ACPI is only supported on platforms that boot via UEFI.
-When an ARMv8 system boots, it can either have DT information, ACPI tables,
+When an Arm system boots, it can either have DT information, ACPI tables,
or in some very unusual cases, both. If no command line parameters are used,
the kernel will try to use DT for device enumeration; if there is no DT
present, the kernel will try to use ACPI tables, but only if they are present.
-In neither is available, the kernel will not boot. If acpi=force is used
+If neither is available, the kernel will not boot. If acpi=force is used
on the command line, the kernel will attempt to use ACPI tables first, but
fall back to DT if there are no ACPI tables present. The basic idea is that
the kernel will not fail to boot unless it absolutely has no other choice.
@@ -169,7 +170,7 @@ hardware reduced mode must be set to zero.
For the ACPI core to operate properly, and in turn provide the information
the kernel needs to configure devices, it expects to find the following
-tables (all section numbers refer to the ACPI 6.1 specification):
+tables (all section numbers refer to the ACPI 6.5 specification):
- RSDP (Root System Description Pointer), section 5.2.5
@@ -184,20 +185,76 @@ tables (all section numbers refer to the ACPI 6.1 specification):
- GTDT (Generic Timer Description Table), section 5.2.24
+ - PPTT (Processor Properties Topology Table), section 5.2.30
+
+ - DBG2 (DeBuG port table 2), section 5.2.6, specifically Table 5-6.
+
+ - APMT (Arm Performance Monitoring unit Table), section 5.2.6, specifically Table 5-6.
+
+ - AGDI (Arm Generic diagnostic Dump and Reset Device Interface Table), section 5.2.6, specifically Table 5-6.
+
- If PCI is supported, the MCFG (Memory mapped ConFiGuration
- Table), section 5.2.6, specifically Table 5-31.
+ Table), section 5.2.6, specifically Table 5-6.
- If booting without a console=<device> kernel parameter is
supported, the SPCR (Serial Port Console Redirection table),
- section 5.2.6, specifically Table 5-31.
+ section 5.2.6, specifically Table 5-6.
- If necessary to describe the I/O topology, SMMUs and GIC ITSs,
the IORT (Input Output Remapping Table, section 5.2.6, specifically
- Table 5-31).
+ Table 5-6).
+
+ - If NUMA is supported, the following tables are required:
+
+ - SRAT (System Resource Affinity Table), section 5.2.16
+
+ - SLIT (System Locality distance Information Table), section 5.2.17
+
+ - If NUMA is supported, and the system contains heterogeneous memory,
+ the HMAT (Heterogeneous Memory Attribute Table), section 5.2.28.
+
+ - If the ACPI Platform Error Interfaces are required, the following
+ tables are conditionally required:
+
+ - BERT (Boot Error Record Table, section 18.3.1)
+
+ - EINJ (Error INJection table, section 18.6.1)
+
+ - ERST (Error Record Serialization Table, section 18.5)
+
+ - HEST (Hardware Error Source Table, section 18.3.2)
+
+ - SDEI (Software Delegated Exception Interface table, section 5.2.6,
+ specifically Table 5-6)
+
+ - AEST (Arm Error Source Table, section 5.2.6,
+ specifically Table 5-6)
+
+ - RAS2 (ACPI RAS2 feature table, section 5.2.21)
+
+ - If the system contains controllers using PCC channel, the
+ PCCT (Platform Communications Channel Table), section 14.1
+
+ - If the system contains a controller to capture board-level system state,
+ and communicates with the host via PCC, the PDTT (Platform Debug Trigger
+ Table), section 5.2.29.
+
+ - If NVDIMM is supported, the NFIT (NVDIMM Firmware Interface Table), section 5.2.26
+
+ - If video framebuffer is present, the BGRT (Boot Graphics Resource Table), section 5.2.23
+
+ - If IPMI is implemented, the SPMI (Server Platform Management Interface),
+ section 5.2.6, specifically Table 5-6.
+
+ - If the system contains a CXL Host Bridge, the CEDT (CXL Early Discovery
+ Table), section 5.2.6, specifically Table 5-6.
+
+ - If the system supports MPAM, the MPAM (Memory Partitioning And Monitoring table), section 5.2.6,
+ specifically Table 5-6.
+
+ - If the system lacks persistent storage, the IBFT (ISCSI Boot Firmware
+ Table), section 5.2.6, specifically Table 5-6.
- - If NUMA is supported, the SRAT (System Resource Affinity Table)
- and SLIT (System Locality distance Information Table), sections
- 5.2.16 and 5.2.17, respectively.
If the above tables are not all present, the kernel may or may not be
able to boot properly since it may not be able to configure all of the
@@ -269,16 +326,14 @@ Drivers should look for device properties in the _DSD object ONLY; the _DSD
object is described in the ACPI specification section 6.2.5, but this only
describes how to define the structure of an object returned via _DSD, and
how specific data structures are defined by specific UUIDs. Linux should
-only use the _DSD Device Properties UUID [5]:
+only use the _DSD Device Properties UUID [4]:
- UUID: daffd814-6eba-4d8c-8a91-bc9bbf4aa301
- - https://www.uefi.org/sites/default/files/resources/_DSD-device-properties-UUID.pdf
-
-The UEFI Forum provides a mechanism for registering device properties [4]
-so that they may be used across all operating systems supporting ACPI.
-Device properties that have not been registered with the UEFI Forum should
-not be used.
+Common device properties can be registered by creating a pull request to [4] so
+that they may be used across all operating systems supporting ACPI.
+Device properties that have not been registered with the UEFI Forum can be used
+but not as "uefi-" common properties.
Before creating new device properties, check to be sure that they have not
been defined before and either registered in the Linux kernel documentation
@@ -306,7 +361,7 @@ process.
Once registration and review have been completed, the kernel provides an
interface for looking up device properties in a manner independent of
-whether DT or ACPI is being used. This API should be used [6]; it can
+whether DT or ACPI is being used. This API should be used [5]; it can
eliminate some duplication of code paths in driver probing functions and
discourage divergence between DT bindings and ACPI device properties.
@@ -448,15 +503,15 @@ ASWG
----
The ACPI specification changes regularly. During the year 2014, for instance,
version 5.1 was released and version 6.0 substantially completed, with most of
-the changes being driven by ARM-specific requirements. Proposed changes are
+the changes being driven by Arm-specific requirements. Proposed changes are
presented and discussed in the ASWG (ACPI Specification Working Group) which
is a part of the UEFI Forum. The current version of the ACPI specification
-is 6.1 release in January 2016.
+is 6.5 release in August 2022.
Participation in this group is open to all UEFI members. Please see
http://www.uefi.org/workinggroup for details on group membership.
-It is the intent of the ARMv8 ACPI kernel code to follow the ACPI specification
+It is the intent of the Arm ACPI kernel code to follow the ACPI specification
as closely as possible, and to only implement functionality that complies with
the released standards from UEFI ASWG. As a practical matter, there will be
vendors that provide bad ACPI tables or violate the standards in some way.
@@ -470,12 +525,12 @@ likely be willing to assist in submitting ECRs.
Linux Code
----------
-Individual items specific to Linux on ARM, contained in the Linux
+Individual items specific to Linux on Arm, contained in the Linux
source code, are in the list that follows:
ACPI_OS_NAME
This macro defines the string to be returned when
- an ACPI method invokes the _OS method. On ARM64
+ an ACPI method invokes the _OS method. On Arm
systems, this macro will be "Linux" by default.
The command line parameter acpi_os=<string>
can be used to set it to some other value. The
@@ -485,36 +540,28 @@ ACPI_OS_NAME
ACPI Objects
------------
Detailed expectations for ACPI tables and object are listed in the file
-Documentation/arm64/acpi_object_usage.rst.
+Documentation/arch/arm64/acpi_object_usage.rst.
References
----------
-[0] http://silver.arm.com
- document ARM-DEN-0029, or newer:
- "Server Base System Architecture", version 2.3, dated 27 Mar 2014
+[0] https://developer.arm.com/documentation/den0094/latest
+ document Arm-DEN-0094: "Arm Base System Architecture", version 1.0C, dated 6 Oct 2022
+
+[1] https://developer.arm.com/documentation/den0044/latest
+ Document Arm-DEN-0044: "Arm Base Boot Requirements", version 2.0G, dated 15 Apr 2022
-[1] http://infocenter.arm.com/help/topic/com.arm.doc.den0044a/Server_Base_Boot_Requirements.pdf
- Document ARM-DEN-0044A, or newer: "Server Base Boot Requirements, System
- Software on ARM Platforms", dated 16 Aug 2014
+[2] https://developer.arm.com/documentation/den0029/latest
+ Document Arm-DEN-0029: "Arm Server Base System Architecture", version 7.1, dated 06 Oct 2022
-[2] http://www.secretlab.ca/archives/151,
+[3] http://www.secretlab.ca/archives/151,
10 Jan 2015, Copyright (c) 2015,
Linaro Ltd., written by Grant Likely.
-[3] AMD ACPI for Seattle platform documentation
- http://amd-dev.wpengine.netdna-cdn.com/wordpress/media/2012/10/Seattle_ACPI_Guide.pdf
-
-
-[4] http://www.uefi.org/acpi
- please see the link for the "ACPI _DSD Device
- Property Registry Instructions"
-
-[5] http://www.uefi.org/acpi
- please see the link for the "_DSD (Device
- Specific Data) Implementation Guide"
+[4] _DSD (Device Specific Data) Implementation Guide
+ https://github.com/UEFI/DSD-Guide/blob/main/dsd-guide.pdf
-[6] Kernel code for the unified device
+[5] Kernel code for the unified device
property interface can be found in
include/linux/property.h and drivers/base/property.c.
diff --git a/Documentation/arch/arm64/arm-cca.rst b/Documentation/arch/arm64/arm-cca.rst
new file mode 100644
index 000000000000..c48b7d4ab6bd
--- /dev/null
+++ b/Documentation/arch/arm64/arm-cca.rst
@@ -0,0 +1,69 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=====================================
+Arm Confidential Compute Architecture
+=====================================
+
+Arm systems that support the Realm Management Extension (RME) contain
+hardware to allow a VM guest to be run in a way which protects the code
+and data of the guest from the hypervisor. It extends the older "two
+world" model (Normal and Secure World) into four worlds: Normal, Secure,
+Root and Realm. Linux can then also be run as a guest to a monitor
+running in the Realm world.
+
+The monitor running in the Realm world is known as the Realm Management
+Monitor (RMM) and implements the Realm Management Monitor
+specification[1]. The monitor acts a bit like a hypervisor (e.g. it runs
+in EL2 and manages the stage 2 page tables etc of the guests running in
+Realm world), however much of the control is handled by a hypervisor
+running in the Normal World. The Normal World hypervisor uses the Realm
+Management Interface (RMI) defined by the RMM specification to request
+the RMM to perform operations (e.g. mapping memory or executing a vCPU).
+
+The RMM defines an environment for guests where the address space (IPA)
+is split into two. The lower half is protected - any memory that is
+mapped in this half cannot be seen by the Normal World and the RMM
+restricts what operations the Normal World can perform on this memory
+(e.g. the Normal World cannot replace pages in this region without the
+guest's cooperation). The upper half is shared, the Normal World is free
+to make changes to the pages in this region, and is able to emulate MMIO
+devices in this region too.
+
+A guest running in a Realm may also communicate with the RMM using the
+Realm Services Interface (RSI) to request changes in its environment or
+to perform attestation about its environment. In particular it may
+request that areas of the protected address space are transitioned
+between 'RAM' and 'EMPTY' (in either direction). This allows a Realm
+guest to give up memory to be returned to the Normal World, or to
+request new memory from the Normal World. Without an explicit request
+from the Realm guest the RMM will otherwise prevent the Normal World
+from making these changes.
+
+Linux as a Realm Guest
+----------------------
+
+To run Linux as a guest within a Realm, the following must be provided
+either by the VMM or by a `boot loader` run in the Realm before Linux:
+
+ * All protected RAM described to Linux (by DT or ACPI) must be marked
+ RIPAS RAM before handing control over to Linux.
+
+ * MMIO devices must be either unprotected (e.g. emulated by the Normal
+ World) or marked RIPAS DEV.
+
+ * MMIO devices emulated by the Normal World and used very early in boot
+ (specifically earlycon) must be specified in the upper half of IPA.
+ For earlycon this can be done by specifying the address on the
+ command line, e.g. with an IPA size of 33 bits and the base address
+ of the emulated UART at 0x1000000: ``earlycon=uart,mmio,0x101000000``
+
+ * Linux will use bounce buffers for communicating with unprotected
+ devices. It will transition some protected memory to RIPAS EMPTY and
+ expect to be able to access unprotected pages at the same IPA address
+ but with the highest valid IPA bit set. The expectation is that the
+ VMM will remove the physical pages from the protected mapping and
+ provide those pages as unprotected pages.
+
+References
+----------
+[1] https://developer.arm.com/documentation/den0137/
diff --git a/Documentation/arm64/asymmetric-32bit.rst b/Documentation/arch/arm64/asymmetric-32bit.rst
index 64a0b505da7d..57b8d7476f71 100644
--- a/Documentation/arm64/asymmetric-32bit.rst
+++ b/Documentation/arch/arm64/asymmetric-32bit.rst
@@ -55,7 +55,7 @@ sysfs
The subset of CPUs capable of running 32-bit tasks is described in
``/sys/devices/system/cpu/aarch32_el0`` and is documented further in
-``Documentation/ABI/testing/sysfs-devices-system-cpu``.
+Documentation/ABI/testing/sysfs-devices-system-cpu.
**Note:** CPUs are advertised by this file as they are detected and so
late-onlining of 32-bit-capable CPUs can result in the file contents
@@ -153,3 +153,11 @@ asymmetric system, a broken guest at EL1 could still attempt to execute
mode will return to host userspace with an ``exit_reason`` of
``KVM_EXIT_FAIL_ENTRY`` and will remain non-runnable until successfully
re-initialised by a subsequent ``KVM_ARM_VCPU_INIT`` operation.
+
+NOHZ FULL
+---------
+
+To avoid perturbing an adaptive-ticks CPU (specified using
+``nohz_full=``) when a 32-bit task is forcefully migrated, these CPUs
+are treated as 64-bit-only when support for asymmetric 32-bit systems
+is enabled.
diff --git a/Documentation/arch/arm64/booting.rst b/Documentation/arch/arm64/booting.rst
new file mode 100644
index 000000000000..26efca09aef3
--- /dev/null
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+=====================
+Booting AArch64 Linux
+=====================
+
+Author: Will Deacon <will.deacon@arm.com>
+
+Date : 07 September 2012
+
+This document is based on the ARM booting document by Russell King and
+is relevant to all public releases of the AArch64 Linux kernel.
+
+The AArch64 exception model is made up of a number of exception levels
+(EL0 - EL3), with EL0, EL1 and EL2 having a secure and a non-secure
+counterpart. EL2 is the hypervisor level, EL3 is the highest priority
+level and exists only in secure mode. Both are architecturally optional.
+
+For the purposes of this document, we will use the term `boot loader`
+simply to define all software that executes on the CPU(s) before control
+is passed to the Linux kernel. This may include secure monitor and
+hypervisor code, or it may just be a handful of instructions for
+preparing a minimal boot environment.
+
+Essentially, the boot loader should provide (as a minimum) the
+following:
+
+1. Setup and initialise the RAM
+2. Setup the device tree
+3. Decompress the kernel image
+4. Call the kernel image
+
+
+1. Setup and initialise RAM
+---------------------------
+
+Requirement: MANDATORY
+
+The boot loader is expected to find and initialise all RAM that the
+kernel will use for volatile data storage in the system. It performs
+this in a machine dependent manner. (It may use internal algorithms
+to automatically locate and size all RAM, or it may use knowledge of
+the RAM in the machine, or any other method the boot loader designer
+sees fit.)
+
+For Arm Confidential Compute Realms this includes ensuring that all
+protected RAM has a Realm IPA state (RIPAS) of "RAM".
+
+
+2. Setup the device tree
+-------------------------
+
+Requirement: MANDATORY
+
+The device tree blob (dtb) must be placed on an 8-byte boundary and must
+not exceed 2 megabytes in size. Since the dtb will be mapped cacheable
+using blocks of up to 2 megabytes in size, it must not be placed within
+any 2M region which must be mapped with any specific attributes.
+
+NOTE: versions prior to v4.2 also require that the DTB be placed within
+the 512 MB region starting at text_offset bytes below the kernel Image.
+
+3. Decompress the kernel image
+------------------------------
+
+Requirement: OPTIONAL
+
+The AArch64 kernel does not currently provide a decompressor and
+therefore requires decompression (gzip etc.) to be performed by the boot
+loader if a compressed Image target (e.g. Image.gz) is used. For
+bootloaders that do not implement this requirement, the uncompressed
+Image target is available instead.
+
+
+4. Call the kernel image
+------------------------
+
+Requirement: MANDATORY
+
+The decompressed kernel image contains a 64-byte header as follows::
+
+ u32 code0; /* Executable code */
+ u32 code1; /* Executable code */
+ u64 text_offset; /* Image load offset, little endian */
+ u64 image_size; /* Effective Image size, little endian */
+ u64 flags; /* kernel flags, little endian */
+ u64 res2 = 0; /* reserved */
+ u64 res3 = 0; /* reserved */
+ u64 res4 = 0; /* reserved */
+ u32 magic = 0x644d5241; /* Magic number, little endian, "ARM\x64" */
+ u32 res5; /* reserved (used for PE COFF offset) */
+
+
+Header notes:
+
+- As of v3.17, all fields are little endian unless stated otherwise.
+
+- code0/code1 are responsible for branching to stext.
+
+- when booting through EFI, code0/code1 are initially skipped.
+ res5 is an offset to the PE header and the PE header has the EFI
+ entry point (efi_stub_entry). When the stub has done its work, it
+ jumps to code0 to resume the normal boot process.
+
+- Prior to v3.17, the endianness of text_offset was not specified. In
+ these cases image_size is zero and text_offset is 0x80000 in the
+ endianness of the kernel. Where image_size is non-zero image_size is
+ little-endian and must be respected. Where image_size is zero,
+ text_offset can be assumed to be 0x80000.
+
+- The flags field (introduced in v3.17) is a little-endian 64-bit field
+ composed as follows:
+
+ ============= ===============================================================
+ Bit 0 Kernel endianness. 1 if BE, 0 if LE.
+ Bit 1-2 Kernel Page size.
+
+ * 0 - Unspecified.
+ * 1 - 4K
+ * 2 - 16K
+ * 3 - 64K
+ Bit 3 Kernel physical placement
+
+ 0
+ 2MB aligned base should be as close as possible
+ to the base of DRAM, since memory below it is not
+ accessible via the linear mapping
+ 1
+ 2MB aligned base such that all image_size bytes
+ counted from the start of the image are within
+ the 48-bit addressable range of physical memory
+ Bits 4-63 Reserved.
+ ============= ===============================================================
+
+- When image_size is zero, a bootloader should attempt to keep as much
+ memory as possible free for use by the kernel immediately after the
+ end of the kernel image. The amount of space required will vary
+ depending on selected features, and is effectively unbound.
+
+The Image must be placed text_offset bytes from a 2MB aligned base
+address anywhere in usable system RAM and called there. The region
+between the 2 MB aligned base address and the start of the image has no
+special significance to the kernel, and may be used for other purposes.
+At least image_size bytes from the start of the image must be free for
+use by the kernel.
+NOTE: versions prior to v4.6 cannot make use of memory below the
+physical offset of the Image so it is recommended that the Image be
+placed as close as possible to the start of system RAM.
+
+If an initrd/initramfs is passed to the kernel at boot, it must reside
+entirely within a 1 GB aligned physical memory window of up to 32 GB in
+size that fully covers the kernel Image as well.
+
+Any memory described to the kernel (even that below the start of the
+image) which is not marked as reserved from the kernel (e.g., with a
+memreserve region in the device tree) will be considered as available to
+the kernel.
+
+Before jumping into the kernel, the following conditions must be met:
+
+- Quiesce all DMA capable devices so that memory does not get
+ corrupted by bogus network packets or disk data. This will save
+ you many hours of debug.
+
+- Primary CPU general-purpose register settings:
+
+ - x0 = physical address of device tree blob (dtb) in system RAM.
+ - x1 = 0 (reserved for future use)
+ - x2 = 0 (reserved for future use)
+ - x3 = 0 (reserved for future use)
+
+- CPU mode
+
+ All forms of interrupts must be masked in PSTATE.DAIF (Debug, SError,
+ IRQ and FIQ).
+ The CPU must be in non-secure state, either in EL2 (RECOMMENDED in order
+ to have access to the virtualisation extensions), or in EL1.
+
+- Caches, MMUs
+
+ The MMU must be off.
+
+ The instruction cache may be on or off, and must not hold any stale
+ entries corresponding to the loaded kernel image.
+
+ The address range corresponding to the loaded kernel image must be
+ cleaned to the PoC. In the presence of a system cache or other
+ coherent masters with caches enabled, this will typically require
+ cache maintenance by VA rather than set/way operations.
+ System caches which respect the architected cache maintenance by VA
+ operations must be configured and may be enabled.
+ System caches which do not respect architected cache maintenance by VA
+ operations (not recommended) must be configured and disabled.
+
+- Architected timers
+
+ CNTFRQ must be programmed with the timer frequency and CNTVOFF must
+ be programmed with a consistent value on all CPUs. If entering the
+ kernel at EL1, CNTHCTL_EL2 must have EL1PCTEN (bit 0) set where
+ available.
+
+- Coherency
+
+ All CPUs to be booted by the kernel must be part of the same coherency
+ domain on entry to the kernel. This may require IMPLEMENTATION DEFINED
+ initialisation to enable the receiving of maintenance operations on
+ each CPU.
+
+- System registers
+
+ All writable architected system registers at or below the exception
+ level where the kernel image will be entered must be initialised by
+ software at a higher exception level to prevent execution in an UNKNOWN
+ state.
+
+ For all systems:
+ - If EL3 is present:
+
+ - SCR_EL3.FIQ must have the same value across all CPUs the kernel is
+ executing on.
+ - The value of SCR_EL3.FIQ must be the same as the one present at boot
+ time whenever the kernel is executing.
+
+ - If EL3 is present and the kernel is entered at EL2:
+
+ - SCR_EL3.HCE (bit 8) must be initialised to 0b1.
+
+ For systems with a GICv5 interrupt controller to be used in v5 mode:
+
+ - If the kernel is entered at EL1 and EL2 is present:
+
+ - ICH_HFGRTR_EL2.ICC_PPI_ACTIVERn_EL1 (bit 20) must be initialised to 0b1.
+ - ICH_HFGRTR_EL2.ICC_PPI_PRIORITYRn_EL1 (bit 19) must be initialised to 0b1.
+ - ICH_HFGRTR_EL2.ICC_PPI_PENDRn_EL1 (bit 18) must be initialised to 0b1.
+ - ICH_HFGRTR_EL2.ICC_PPI_ENABLERn_EL1 (bit 17) must be initialised to 0b1.
+ - ICH_HFGRTR_EL2.ICC_PPI_HMRn_EL1 (bit 16) must be initialised to 0b1.
+ - ICH_HFGRTR_EL2.ICC_IAFFIDR_EL1 (bit 7) must be initialised to 0b1.
+ - ICH_HFGRTR_EL2.ICC_ICSR_EL1 (bit 6) must be initialised to 0b1.
+ - ICH_HFGRTR_EL2.ICC_PCR_EL1 (bit 5) must be initialised to 0b1.
+ - ICH_HFGRTR_EL2.ICC_HPPIR_EL1 (bit 4) must be initialised to 0b1.
+ - ICH_HFGRTR_EL2.ICC_HAPR_EL1 (bit 3) must be initialised to 0b1.
+ - ICH_HFGRTR_EL2.ICC_CR0_EL1 (bit 2) must be initialised to 0b1.
+ - ICH_HFGRTR_EL2.ICC_IDRn_EL1 (bit 1) must be initialised to 0b1.
+ - ICH_HFGRTR_EL2.ICC_APR_EL1 (bit 0) must be initialised to 0b1.
+
+ - ICH_HFGWTR_EL2.ICC_PPI_ACTIVERn_EL1 (bit 20) must be initialised to 0b1.
+ - ICH_HFGWTR_EL2.ICC_PPI_PRIORITYRn_EL1 (bit 19) must be initialised to 0b1.
+ - ICH_HFGWTR_EL2.ICC_PPI_PENDRn_EL1 (bit 18) must be initialised to 0b1.
+ - ICH_HFGWTR_EL2.ICC_PPI_ENABLERn_EL1 (bit 17) must be initialised to 0b1.
+ - ICH_HFGWTR_EL2.ICC_ICSR_EL1 (bit 6) must be initialised to 0b1.
+ - ICH_HFGWTR_EL2.ICC_PCR_EL1 (bit 5) must be initialised to 0b1.
+ - ICH_HFGWTR_EL2.ICC_CR0_EL1 (bit 2) must be initialised to 0b1.
+ - ICH_HFGWTR_EL2.ICC_APR_EL1 (bit 0) must be initialised to 0b1.
+
+ - ICH_HFGITR_EL2.GICRCDNMIA (bit 10) must be initialised to 0b1.
+ - ICH_HFGITR_EL2.GICRCDIA (bit 9) must be initialised to 0b1.
+ - ICH_HFGITR_EL2.GICCDDI (bit 8) must be initialised to 0b1.
+ - ICH_HFGITR_EL2.GICCDEOI (bit 7) must be initialised to 0b1.
+ - ICH_HFGITR_EL2.GICCDHM (bit 6) must be initialised to 0b1.
+ - ICH_HFGITR_EL2.GICCDRCFG (bit 5) must be initialised to 0b1.
+ - ICH_HFGITR_EL2.GICCDPEND (bit 4) must be initialised to 0b1.
+ - ICH_HFGITR_EL2.GICCDAFF (bit 3) must be initialised to 0b1.
+ - ICH_HFGITR_EL2.GICCDPRI (bit 2) must be initialised to 0b1.
+ - ICH_HFGITR_EL2.GICCDDIS (bit 1) must be initialised to 0b1.
+ - ICH_HFGITR_EL2.GICCDEN (bit 0) must be initialised to 0b1.
+
+ - The DT or ACPI tables must describe a GICv5 interrupt controller.
+
+ For systems with a GICv3 interrupt controller to be used in v3 mode:
+ - If EL3 is present:
+
+ - ICC_SRE_EL3.Enable (bit 3) must be initialised to 0b1.
+ - ICC_SRE_EL3.SRE (bit 0) must be initialised to 0b1.
+ - ICC_CTLR_EL3.PMHE (bit 6) must be set to the same value across
+ all CPUs the kernel is executing on, and must stay constant
+ for the lifetime of the kernel.
+
+ - If the kernel is entered at EL1:
+
+ - ICC_SRE_EL2.Enable (bit 3) must be initialised to 0b1
+ - ICC_SRE_EL2.SRE (bit 0) must be initialised to 0b1.
+
+ - The DT or ACPI tables must describe a GICv3 interrupt controller.
+
+ For systems with a GICv3 interrupt controller to be used in
+ compatibility (v2) mode:
+
+ - If EL3 is present:
+
+ ICC_SRE_EL3.SRE (bit 0) must be initialised to 0b0.
+
+ - If the kernel is entered at EL1:
+
+ ICC_SRE_EL2.SRE (bit 0) must be initialised to 0b0.
+
+ - The DT or ACPI tables must describe a GICv2 interrupt controller.
+
+ For CPUs with pointer authentication functionality:
+
+ - If EL3 is present:
+
+ - SCR_EL3.APK (bit 16) must be initialised to 0b1
+ - SCR_EL3.API (bit 17) must be initialised to 0b1
+
+ - If the kernel is entered at EL1:
+
+ - HCR_EL2.APK (bit 40) must be initialised to 0b1
+ - HCR_EL2.API (bit 41) must be initialised to 0b1
+
+ For CPUs with Activity Monitors Unit v1 (AMUv1) extension present:
+
+ - If EL3 is present:
+
+ - CPTR_EL3.TAM (bit 30) must be initialised to 0b0
+ - CPTR_EL2.TAM (bit 30) must be initialised to 0b0
+ - AMCNTENSET0_EL0 must be initialised to 0b1111
+ - AMCNTENSET1_EL0 must be initialised to a platform specific value
+ having 0b1 set for the corresponding bit for each of the auxiliary
+ counters present.
+
+ - If the kernel is entered at EL1:
+
+ - AMCNTENSET0_EL0 must be initialised to 0b1111
+ - AMCNTENSET1_EL0 must be initialised to a platform specific value
+ having 0b1 set for the corresponding bit for each of the auxiliary
+ counters present.
+
+ For CPUs with the Fine Grained Traps (FEAT_FGT) extension present:
+
+ - If EL3 is present and the kernel is entered at EL2:
+
+ - SCR_EL3.FGTEn (bit 27) must be initialised to 0b1.
+
+ For CPUs with the Fine Grained Traps 2 (FEAT_FGT2) extension present:
+
+ - If EL3 is present and the kernel is entered at EL2:
+
+ - SCR_EL3.FGTEn2 (bit 59) must be initialised to 0b1.
+
+ For CPUs with support for HCRX_EL2 (FEAT_HCX) present:
+
+ - If EL3 is present and the kernel is entered at EL2:
+
+ - SCR_EL3.HXEn (bit 38) must be initialised to 0b1.
+
+ For CPUs with Advanced SIMD and floating point support:
+
+ - If EL3 is present:
+
+ - CPTR_EL3.TFP (bit 10) must be initialised to 0b0.
+
+ - If EL2 is present and the kernel is entered at EL1:
+
+ - CPTR_EL2.TFP (bit 10) must be initialised to 0b0.
+
+ For CPUs with the Scalable Vector Extension (FEAT_SVE) present:
+
+ - if EL3 is present:
+
+ - CPTR_EL3.EZ (bit 8) must be initialised to 0b1.
+
+ - ZCR_EL3.LEN must be initialised to the same value for all CPUs the
+ kernel is executed on.
+
+ - If the kernel is entered at EL1 and EL2 is present:
+
+ - CPTR_EL2.TZ (bit 8) must be initialised to 0b0.
+
+ - CPTR_EL2.ZEN (bits 17:16) must be initialised to 0b11.
+
+ - ZCR_EL2.LEN must be initialised to the same value for all CPUs the
+ kernel will execute on.
+
+ For CPUs with the Scalable Matrix Extension (FEAT_SME):
+
+ - If EL3 is present:
+
+ - CPTR_EL3.ESM (bit 12) must be initialised to 0b1.
+
+ - SCR_EL3.EnTP2 (bit 41) must be initialised to 0b1.
+
+ - SMCR_EL3.LEN must be initialised to the same value for all CPUs the
+ kernel will execute on.
+
+ - If the kernel is entered at EL1 and EL2 is present:
+
+ - CPTR_EL2.TSM (bit 12) must be initialised to 0b0.
+
+ - CPTR_EL2.SMEN (bits 25:24) must be initialised to 0b11.
+
+ - SCTLR_EL2.EnTP2 (bit 60) must be initialised to 0b1.
+
+ - SMCR_EL2.LEN must be initialised to the same value for all CPUs the
+ kernel will execute on.
+
+ - HFGRTR_EL2.nTPIDR2_EL0 (bit 55) must be initialised to 0b01.
+
+ - HFGWTR_EL2.nTPIDR2_EL0 (bit 55) must be initialised to 0b01.
+
+ - HFGRTR_EL2.nSMPRI_EL1 (bit 54) must be initialised to 0b01.
+
+ - HFGWTR_EL2.nSMPRI_EL1 (bit 54) must be initialised to 0b01.
+
+ For CPUs with the Scalable Matrix Extension FA64 feature (FEAT_SME_FA64):
+
+ - If EL3 is present:
+
+ - SMCR_EL3.FA64 (bit 31) must be initialised to 0b1.
+
+ - If the kernel is entered at EL1 and EL2 is present:
+
+ - SMCR_EL2.FA64 (bit 31) must be initialised to 0b1.
+
+ For CPUs with the Memory Tagging Extension feature (FEAT_MTE2):
+
+ - If EL3 is present:
+
+ - SCR_EL3.ATA (bit 26) must be initialised to 0b1.
+
+ - If the kernel is entered at EL1 and EL2 is present:
+
+ - HCR_EL2.ATA (bit 56) must be initialised to 0b1.
+
+ For CPUs with the Scalable Matrix Extension version 2 (FEAT_SME2):
+
+ - If EL3 is present:
+
+ - SMCR_EL3.EZT0 (bit 30) must be initialised to 0b1.
+
+ - If the kernel is entered at EL1 and EL2 is present:
+
+ - SMCR_EL2.EZT0 (bit 30) must be initialised to 0b1.
+
+ For CPUs with the Branch Record Buffer Extension (FEAT_BRBE):
+
+ - If EL3 is present:
+
+ - MDCR_EL3.SBRBE (bits 33:32) must be initialised to 0b01 or 0b11.
+
+ - If the kernel is entered at EL1 and EL2 is present:
+
+ - BRBCR_EL2.CC (bit 3) must be initialised to 0b1.
+ - BRBCR_EL2.MPRED (bit 4) must be initialised to 0b1.
+
+ - HDFGRTR_EL2.nBRBDATA (bit 61) must be initialised to 0b1.
+ - HDFGRTR_EL2.nBRBCTL (bit 60) must be initialised to 0b1.
+ - HDFGRTR_EL2.nBRBIDR (bit 59) must be initialised to 0b1.
+
+ - HDFGWTR_EL2.nBRBDATA (bit 61) must be initialised to 0b1.
+ - HDFGWTR_EL2.nBRBCTL (bit 60) must be initialised to 0b1.
+
+ - HFGITR_EL2.nBRBIALL (bit 56) must be initialised to 0b1.
+ - HFGITR_EL2.nBRBINJ (bit 55) must be initialised to 0b1.
+
+ For CPUs with the Performance Monitors Extension (FEAT_PMUv3p9):
+
+ - If EL3 is present:
+
+ - MDCR_EL3.EnPM2 (bit 7) must be initialised to 0b1.
+
+ - If the kernel is entered at EL1 and EL2 is present:
+
+ - HDFGRTR2_EL2.nPMICNTR_EL0 (bit 2) must be initialised to 0b1.
+ - HDFGRTR2_EL2.nPMICFILTR_EL0 (bit 3) must be initialised to 0b1.
+ - HDFGRTR2_EL2.nPMUACR_EL1 (bit 4) must be initialised to 0b1.
+
+ - HDFGWTR2_EL2.nPMICNTR_EL0 (bit 2) must be initialised to 0b1.
+ - HDFGWTR2_EL2.nPMICFILTR_EL0 (bit 3) must be initialised to 0b1.
+ - HDFGWTR2_EL2.nPMUACR_EL1 (bit 4) must be initialised to 0b1.
+
+ For CPUs with SPE data source filtering (FEAT_SPE_FDS):
+
+ - If EL3 is present:
+
+ - MDCR_EL3.EnPMS3 (bit 42) must be initialised to 0b1.
+
+ - If the kernel is entered at EL1 and EL2 is present:
+
+ - HDFGRTR2_EL2.nPMSDSFR_EL1 (bit 19) must be initialised to 0b1.
+ - HDFGWTR2_EL2.nPMSDSFR_EL1 (bit 19) must be initialised to 0b1.
+
+ For CPUs with Memory Copy and Memory Set instructions (FEAT_MOPS):
+
+ - If the kernel is entered at EL1 and EL2 is present:
+
+ - HCRX_EL2.MSCEn (bit 11) must be initialised to 0b1.
+
+ - HCRX_EL2.MCE2 (bit 10) must be initialised to 0b1 and the hypervisor
+ must handle MOPS exceptions as described in :ref:`arm64_mops_hyp`.
+
+ For CPUs with the Extended Translation Control Register feature (FEAT_TCR2):
+
+ - If EL3 is present:
+
+ - SCR_EL3.TCR2En (bit 43) must be initialised to 0b1.
+
+ - If the kernel is entered at EL1 and EL2 is present:
+
+ - HCRX_EL2.TCR2En (bit 14) must be initialised to 0b1.
+
+ For CPUs with the Stage 1 Permission Indirection Extension feature (FEAT_S1PIE):
+
+ - If EL3 is present:
+
+ - SCR_EL3.PIEn (bit 45) must be initialised to 0b1.
+
+ - If the kernel is entered at EL1 and EL2 is present:
+
+ - HFGRTR_EL2.nPIR_EL1 (bit 58) must be initialised to 0b1.
+
+ - HFGWTR_EL2.nPIR_EL1 (bit 58) must be initialised to 0b1.
+
+ - HFGRTR_EL2.nPIRE0_EL1 (bit 57) must be initialised to 0b1.
+
+ - HFGRWR_EL2.nPIRE0_EL1 (bit 57) must be initialised to 0b1.
+
+ - For CPUs with Guarded Control Stacks (FEAT_GCS):
+
+ - GCSCR_EL1 must be initialised to 0.
+
+ - GCSCRE0_EL1 must be initialised to 0.
+
+ - If EL3 is present:
+
+ - SCR_EL3.GCSEn (bit 39) must be initialised to 0b1.
+
+ - If EL2 is present:
+
+ - GCSCR_EL2 must be initialised to 0.
+
+ - If the kernel is entered at EL1 and EL2 is present:
+
+ - HCRX_EL2.GCSEn must be initialised to 0b1.
+
+ - HFGITR_EL2.nGCSEPP (bit 59) must be initialised to 0b1.
+
+ - HFGITR_EL2.nGCSSTR_EL1 (bit 58) must be initialised to 0b1.
+
+ - HFGITR_EL2.nGCSPUSHM_EL1 (bit 57) must be initialised to 0b1.
+
+ - HFGRTR_EL2.nGCS_EL1 (bit 53) must be initialised to 0b1.
+
+ - HFGRTR_EL2.nGCS_EL0 (bit 52) must be initialised to 0b1.
+
+ - HFGWTR_EL2.nGCS_EL1 (bit 53) must be initialised to 0b1.
+
+ - HFGWTR_EL2.nGCS_EL0 (bit 52) must be initialised to 0b1.
+
+ - For CPUs with debug architecture i.e FEAT_Debugv8pN (all versions):
+
+ - If EL3 is present:
+
+ - MDCR_EL3.TDA (bit 9) must be initialized to 0b0
+
+ - For CPUs with FEAT_PMUv3:
+
+ - If EL3 is present:
+
+ - MDCR_EL3.TPM (bit 6) must be initialized to 0b0
+
+The requirements described above for CPU mode, caches, MMUs, architected
+timers, coherency and system registers apply to all CPUs. All CPUs must
+enter the kernel in the same exception level. Where the values documented
+disable traps it is permissible for these traps to be enabled so long as
+those traps are handled transparently by higher exception levels as though
+the values documented were set.
+
+The boot loader is expected to enter the kernel on each CPU in the
+following manner:
+
+- The primary CPU must jump directly to the first instruction of the
+ kernel image. The device tree blob passed by this CPU must contain
+ an 'enable-method' property for each cpu node. The supported
+ enable-methods are described below.
+
+ It is expected that the bootloader will generate these device tree
+ properties and insert them into the blob prior to kernel entry.
+
+- CPUs with a "spin-table" enable-method must have a 'cpu-release-addr'
+ property in their cpu node. This property identifies a
+ naturally-aligned 64-bit zero-initalised memory location.
+
+ These CPUs should spin outside of the kernel in a reserved area of
+ memory (communicated to the kernel by a /memreserve/ region in the
+ device tree) polling their cpu-release-addr location, which must be
+ contained in the reserved region. A wfe instruction may be inserted
+ to reduce the overhead of the busy-loop and a sev will be issued by
+ the primary CPU. When a read of the location pointed to by the
+ cpu-release-addr returns a non-zero value, the CPU must jump to this
+ value. The value will be written as a single 64-bit little-endian
+ value, so CPUs must convert the read value to their native endianness
+ before jumping to it.
+
+- CPUs with a "psci" enable method should remain outside of
+ the kernel (i.e. outside of the regions of memory described to the
+ kernel in the memory node, or in a reserved area of memory described
+ to the kernel by a /memreserve/ region in the device tree). The
+ kernel will issue CPU_ON calls as described in ARM document number ARM
+ DEN 0022A ("Power State Coordination Interface System Software on ARM
+ processors") to bring CPUs into the kernel.
+
+ The device tree should contain a 'psci' node, as described in
+ Documentation/devicetree/bindings/arm/psci.yaml.
+
+- Secondary CPU general-purpose register settings
+
+ - x0 = 0 (reserved for future use)
+ - x1 = 0 (reserved for future use)
+ - x2 = 0 (reserved for future use)
+ - x3 = 0 (reserved for future use)
diff --git a/Documentation/arm64/cpu-feature-registers.rst b/Documentation/arch/arm64/cpu-feature-registers.rst
index c7adc7897df6..add66afc7b03 100644
--- a/Documentation/arm64/cpu-feature-registers.rst
+++ b/Documentation/arch/arm64/cpu-feature-registers.rst
@@ -72,14 +72,15 @@ there are some issues with their usage.
process could be migrated to another CPU by the time it uses the
register value, unless the CPU affinity is set. Hence, there is no
guarantee that the value reflects the processor that it is
- currently executing on. The REVIDR is not exposed due to this
- constraint, as REVIDR makes sense only in conjunction with the
- MIDR. Alternately, MIDR_EL1 and REVIDR_EL1 are exposed via sysfs
- at::
+ currently executing on. REVIDR and AIDR are not exposed due to this
+ constraint, as these registers only make sense in conjunction with
+ the MIDR. Alternately, MIDR_EL1, REVIDR_EL1, and AIDR_EL1 are exposed
+ via sysfs at::
/sys/devices/system/cpu/cpu$ID/regs/identification/
- \- midr
- \- revidr
+ \- midr_el1
+ \- revidr_el1
+ \- aidr_el1
3. Implementation
--------------------
@@ -152,6 +153,8 @@ infrastructure:
+------------------------------+---------+---------+
| DIT | [51-48] | y |
+------------------------------+---------+---------+
+ | MPAM | [43-40] | n |
+ +------------------------------+---------+---------+
| SVE | [35-32] | y |
+------------------------------+---------+---------+
| GIC | [27-24] | n |
@@ -175,6 +178,8 @@ infrastructure:
+------------------------------+---------+---------+
| Name | bits | visible |
+------------------------------+---------+---------+
+ | SME | [27-24] | y |
+ +------------------------------+---------+---------+
| MTE | [11-8] | y |
+------------------------------+---------+---------+
| SSBS | [7-4] | y |
@@ -266,6 +271,8 @@ infrastructure:
+------------------------------+---------+---------+
| SHA3 | [35-32] | y |
+------------------------------+---------+---------+
+ | B16B16 | [27-24] | y |
+ +------------------------------+---------+---------+
| BF16 | [23-20] | y |
+------------------------------+---------+---------+
| BitPerm | [19-16] | y |
@@ -288,6 +295,18 @@ infrastructure:
+------------------------------+---------+---------+
| Name | bits | visible |
+------------------------------+---------+---------+
+ | CSSC | [55-52] | y |
+ +------------------------------+---------+---------+
+ | RPRFM | [51-48] | y |
+ +------------------------------+---------+---------+
+ | BC | [23-20] | y |
+ +------------------------------+---------+---------+
+ | MOPS | [19-16] | y |
+ +------------------------------+---------+---------+
+ | APA3 | [15-12] | y |
+ +------------------------------+---------+---------+
+ | GPA3 | [11-8] | y |
+ +------------------------------+---------+---------+
| RPRES | [7-4] | y |
+------------------------------+---------+---------+
| WFXT | [3-0] | y |
diff --git a/Documentation/arch/arm64/cpu-hotplug.rst b/Documentation/arch/arm64/cpu-hotplug.rst
new file mode 100644
index 000000000000..8fb438bf7781
--- /dev/null
+++ b/Documentation/arch/arm64/cpu-hotplug.rst
@@ -0,0 +1,79 @@
+.. SPDX-License-Identifier: GPL-2.0
+.. _cpuhp_index:
+
+====================
+CPU Hotplug and ACPI
+====================
+
+CPU hotplug in the arm64 world is commonly used to describe the kernel taking
+CPUs online/offline using PSCI. This document is about ACPI firmware allowing
+CPUs that were not available during boot to be added to the system later.
+
+``possible`` and ``present`` refer to the state of the CPU as seen by linux.
+
+
+CPU Hotplug on physical systems - CPUs not present at boot
+----------------------------------------------------------
+
+Physical systems need to mark a CPU that is ``possible`` but not ``present`` as
+being ``present``. An example would be a dual socket machine, where the package
+in one of the sockets can be replaced while the system is running.
+
+This is not supported.
+
+In the arm64 world CPUs are not a single device but a slice of the system.
+There are no systems that support the physical addition (or removal) of CPUs
+while the system is running, and ACPI is not able to sufficiently describe
+them.
+
+e.g. New CPUs come with new caches, but the platform's cache topology is
+described in a static table, the PPTT. How caches are shared between CPUs is
+not discoverable, and must be described by firmware.
+
+e.g. The GIC redistributor for each CPU must be accessed by the driver during
+boot to discover the system wide supported features. ACPI's MADT GICC
+structures can describe a redistributor associated with a disabled CPU, but
+can't describe whether the redistributor is accessible, only that it is not
+'always on'.
+
+arm64's ACPI tables assume that everything described is ``present``.
+
+
+CPU Hotplug on virtual systems - CPUs not enabled at boot
+---------------------------------------------------------
+
+Virtual systems have the advantage that all the properties the system will
+ever have can be described at boot. There are no power-domain considerations
+as such devices are emulated.
+
+CPU Hotplug on virtual systems is supported. It is distinct from physical
+CPU Hotplug as all resources are described as ``present``, but CPUs may be
+marked as disabled by firmware. Only the CPU's online/offline behaviour is
+influenced by firmware. An example is where a virtual machine boots with a
+single CPU, and additional CPUs are added once a cloud orchestrator deploys
+the workload.
+
+For a virtual machine, the VMM (e.g. Qemu) plays the part of firmware.
+
+Virtual hotplug is implemented as a firmware policy affecting which CPUs can be
+brought online. Firmware can enforce its policy via PSCI's return codes. e.g.
+``DENIED``.
+
+The ACPI tables must describe all the resources of the virtual machine. CPUs
+that firmware wishes to disable either from boot (or later) should not be
+``enabled`` in the MADT GICC structures, but should have the ``online capable``
+bit set, to indicate they can be enabled later. The boot CPU must be marked as
+``enabled``. The 'always on' GICR structure must be used to describe the
+redistributors.
+
+CPUs described as ``online capable`` but not ``enabled`` can be set to enabled
+by the DSDT's Processor object's _STA method. On virtual systems the _STA method
+must always report the CPU as ``present``. Changes to the firmware policy can
+be notified to the OS via device-check or eject-request.
+
+CPUs described as ``enabled`` in the static table, should not have their _STA
+modified dynamically by firmware. Soft-restart features such as kexec will
+re-read the static properties of the system from these static tables, and
+may malfunction if these no longer describe the running system. Linux will
+re-discover the dynamic properties of the system from the _STA method later
+during boot.
diff --git a/Documentation/arch/arm64/elf_hwcaps.rst b/Documentation/arch/arm64/elf_hwcaps.rst
new file mode 100644
index 000000000000..a15df4956849
--- /dev/null
+++ b/Documentation/arch/arm64/elf_hwcaps.rst
@@ -0,0 +1,452 @@
+.. _elf_hwcaps_index:
+
+================
+ARM64 ELF hwcaps
+================
+
+This document describes the usage and semantics of the arm64 ELF hwcaps.
+
+
+1. Introduction
+---------------
+
+Some hardware or software features are only available on some CPU
+implementations, and/or with certain kernel configurations, but have no
+architected discovery mechanism available to userspace code at EL0. The
+kernel exposes the presence of these features to userspace through a set
+of flags called hwcaps, exposed in the auxiliary vector.
+
+Userspace software can test for features by acquiring the AT_HWCAP,
+AT_HWCAP2 or AT_HWCAP3 entry of the auxiliary vector, and testing
+whether the relevant flags are set, e.g.::
+
+ bool floating_point_is_present(void)
+ {
+ unsigned long hwcaps = getauxval(AT_HWCAP);
+ if (hwcaps & HWCAP_FP)
+ return true;
+
+ return false;
+ }
+
+Where software relies on a feature described by a hwcap, it should check
+the relevant hwcap flag to verify that the feature is present before
+attempting to make use of the feature.
+
+Features cannot be probed reliably through other means. When a feature
+is not available, attempting to use it may result in unpredictable
+behaviour, and is not guaranteed to result in any reliable indication
+that the feature is unavailable, such as a SIGILL.
+
+
+2. Interpretation of hwcaps
+---------------------------
+
+The majority of hwcaps are intended to indicate the presence of features
+which are described by architected ID registers inaccessible to
+userspace code at EL0. These hwcaps are defined in terms of ID register
+fields, and should be interpreted with reference to the definition of
+these fields in the ARM Architecture Reference Manual (ARM ARM).
+
+Such hwcaps are described below in the form::
+
+ Functionality implied by idreg.field == val.
+
+Such hwcaps indicate the availability of functionality that the ARM ARM
+defines as being present when idreg.field has value val, but do not
+indicate that idreg.field is precisely equal to val, nor do they
+indicate the absence of functionality implied by other values of
+idreg.field.
+
+Other hwcaps may indicate the presence of features which cannot be
+described by ID registers alone. These may be described without
+reference to ID registers, and may refer to other documentation.
+
+
+3. The hwcaps exposed in AT_HWCAP
+---------------------------------
+
+HWCAP_FP
+ Functionality implied by ID_AA64PFR0_EL1.FP == 0b0000.
+
+HWCAP_ASIMD
+ Functionality implied by ID_AA64PFR0_EL1.AdvSIMD == 0b0000.
+
+HWCAP_EVTSTRM
+ The generic timer is configured to generate events at a frequency of
+ approximately 10KHz.
+
+HWCAP_AES
+ Functionality implied by ID_AA64ISAR0_EL1.AES == 0b0001.
+
+HWCAP_PMULL
+ Functionality implied by ID_AA64ISAR0_EL1.AES == 0b0010.
+
+HWCAP_SHA1
+ Functionality implied by ID_AA64ISAR0_EL1.SHA1 == 0b0001.
+
+HWCAP_SHA2
+ Functionality implied by ID_AA64ISAR0_EL1.SHA2 == 0b0001.
+
+HWCAP_CRC32
+ Functionality implied by ID_AA64ISAR0_EL1.CRC32 == 0b0001.
+
+HWCAP_ATOMICS
+ Functionality implied by ID_AA64ISAR0_EL1.Atomic == 0b0010.
+
+HWCAP_FPHP
+ Functionality implied by ID_AA64PFR0_EL1.FP == 0b0001.
+
+HWCAP_ASIMDHP
+ Functionality implied by ID_AA64PFR0_EL1.AdvSIMD == 0b0001.
+
+HWCAP_CPUID
+ EL0 access to certain ID registers is available, to the extent
+ described by Documentation/arch/arm64/cpu-feature-registers.rst.
+
+ These ID registers may imply the availability of features.
+
+HWCAP_ASIMDRDM
+ Functionality implied by ID_AA64ISAR0_EL1.RDM == 0b0001.
+
+HWCAP_JSCVT
+ Functionality implied by ID_AA64ISAR1_EL1.JSCVT == 0b0001.
+
+HWCAP_FCMA
+ Functionality implied by ID_AA64ISAR1_EL1.FCMA == 0b0001.
+
+HWCAP_LRCPC
+ Functionality implied by ID_AA64ISAR1_EL1.LRCPC == 0b0001.
+
+HWCAP_DCPOP
+ Functionality implied by ID_AA64ISAR1_EL1.DPB == 0b0001.
+
+HWCAP_SHA3
+ Functionality implied by ID_AA64ISAR0_EL1.SHA3 == 0b0001.
+
+HWCAP_SM3
+ Functionality implied by ID_AA64ISAR0_EL1.SM3 == 0b0001.
+
+HWCAP_SM4
+ Functionality implied by ID_AA64ISAR0_EL1.SM4 == 0b0001.
+
+HWCAP_ASIMDDP
+ Functionality implied by ID_AA64ISAR0_EL1.DP == 0b0001.
+
+HWCAP_SHA512
+ Functionality implied by ID_AA64ISAR0_EL1.SHA2 == 0b0010.
+
+HWCAP_SVE
+ Functionality implied by ID_AA64PFR0_EL1.SVE == 0b0001.
+
+HWCAP_ASIMDFHM
+ Functionality implied by ID_AA64ISAR0_EL1.FHM == 0b0001.
+
+HWCAP_DIT
+ Functionality implied by ID_AA64PFR0_EL1.DIT == 0b0001.
+
+HWCAP_USCAT
+ Functionality implied by ID_AA64MMFR2_EL1.AT == 0b0001.
+
+HWCAP_ILRCPC
+ Functionality implied by ID_AA64ISAR1_EL1.LRCPC == 0b0010.
+
+HWCAP_FLAGM
+ Functionality implied by ID_AA64ISAR0_EL1.TS == 0b0001.
+
+HWCAP_SSBS
+ Functionality implied by ID_AA64PFR1_EL1.SSBS == 0b0010.
+
+HWCAP_SB
+ Functionality implied by ID_AA64ISAR1_EL1.SB == 0b0001.
+
+HWCAP_PACA
+ Functionality implied by ID_AA64ISAR1_EL1.APA == 0b0001 or
+ ID_AA64ISAR1_EL1.API == 0b0001, as described by
+ Documentation/arch/arm64/pointer-authentication.rst.
+
+HWCAP_PACG
+ Functionality implied by ID_AA64ISAR1_EL1.GPA == 0b0001 or
+ ID_AA64ISAR1_EL1.GPI == 0b0001, as described by
+ Documentation/arch/arm64/pointer-authentication.rst.
+
+HWCAP_GCS
+ Functionality implied by ID_AA64PFR1_EL1.GCS == 0b1, as
+ described by Documentation/arch/arm64/gcs.rst.
+
+HWCAP_CMPBR
+ Functionality implied by ID_AA64ISAR2_EL1.CSSC == 0b0010.
+
+HWCAP_FPRCVT
+ Functionality implied by ID_AA64ISAR3_EL1.FPRCVT == 0b0001.
+
+HWCAP_F8MM8
+ Functionality implied by ID_AA64FPFR0_EL1.F8MM8 == 0b0001.
+
+HWCAP_F8MM4
+ Functionality implied by ID_AA64FPFR0_EL1.F8MM4 == 0b0001.
+
+HWCAP_SVE_F16MM
+ Functionality implied by ID_AA64PFR0_EL1.SVE == 0b0001 and
+ ID_AA64ZFR0_EL1.F16MM == 0b0001.
+
+HWCAP_SVE_ELTPERM
+ Functionality implied by ID_AA64PFR0_EL1.SVE == 0b0001 and
+ ID_AA64ZFR0_EL1.ELTPERM == 0b0001.
+
+HWCAP_SVE_AES2
+ Functionality implied by ID_AA64PFR0_EL1.SVE == 0b0001 and
+ ID_AA64ZFR0_EL1.AES == 0b0011.
+
+HWCAP_SVE_BFSCALE
+ Functionality implied by ID_AA64PFR0_EL1.SVE == 0b0001 and
+ ID_AA64ZFR0_EL1.B16B16 == 0b0010.
+
+HWCAP_SVE2P2
+ Functionality implied by ID_AA64PFR0_EL1.SVE == 0b0001 and
+ ID_AA64ZFR0_EL1.SVEver == 0b0011.
+
+HWCAP_SME2P2
+ Functionality implied by ID_AA64SMFR0_EL1.SMEver == 0b0011.
+
+HWCAP_SME_SBITPERM
+ Functionality implied by ID_AA64SMFR0_EL1.SBitPerm == 0b1.
+
+HWCAP_SME_AES
+ Functionality implied by ID_AA64SMFR0_EL1.AES == 0b1.
+
+HWCAP_SME_SFEXPA
+ Functionality implied by ID_AA64SMFR0_EL1.SFEXPA == 0b1.
+
+HWCAP_SME_STMOP
+ Functionality implied by ID_AA64SMFR0_EL1.STMOP == 0b1.
+
+HWCAP_SME_SMOP4
+ Functionality implied by ID_AA64SMFR0_EL1.SMOP4 == 0b1.
+
+HWCAP2_DCPODP
+ Functionality implied by ID_AA64ISAR1_EL1.DPB == 0b0010.
+
+HWCAP2_SVE2
+ Functionality implied by ID_AA64PFR0_EL1.SVE == 0b0001 and
+ ID_AA64ZFR0_EL1.SVEver == 0b0001.
+
+HWCAP2_SVEAES
+ Functionality implied by ID_AA64PFR0_EL1.SVE == 0b0001 and
+ ID_AA64ZFR0_EL1.AES == 0b0001.
+
+HWCAP2_SVEPMULL
+ Functionality implied by ID_AA64PFR0_EL1.SVE == 0b0001 and
+ ID_AA64ZFR0_EL1.AES == 0b0010.
+
+HWCAP2_SVEBITPERM
+ Functionality implied by ID_AA64PFR0_EL1.SVE == 0b0001 and
+ ID_AA64ZFR0_EL1.BitPerm == 0b0001.
+
+HWCAP2_SVESHA3
+ Functionality implied by ID_AA64PFR0_EL1.SVE == 0b0001 and
+ ID_AA64ZFR0_EL1.SHA3 == 0b0001.
+
+HWCAP2_SVESM4
+ Functionality implied by ID_AA64PFR0_EL1.SVE == 0b0001 and
+ ID_AA64ZFR0_EL1.SM4 == 0b0001.
+
+HWCAP2_FLAGM2
+ Functionality implied by ID_AA64ISAR0_EL1.TS == 0b0010.
+
+HWCAP2_FRINT
+ Functionality implied by ID_AA64ISAR1_EL1.FRINTTS == 0b0001.
+
+HWCAP2_SVEI8MM
+ Functionality implied by ID_AA64PFR0_EL1.SVE == 0b0001 and
+ ID_AA64ZFR0_EL1.I8MM == 0b0001.
+
+HWCAP2_SVEF32MM
+ Functionality implied by ID_AA64PFR0_EL1.SVE == 0b0001 and
+ ID_AA64ZFR0_EL1.F32MM == 0b0001.
+
+HWCAP2_SVEF64MM
+ Functionality implied by ID_AA64PFR0_EL1.SVE == 0b0001 and
+ ID_AA64ZFR0_EL1.F64MM == 0b0001.
+
+HWCAP2_SVEBF16
+ Functionality implied by ID_AA64PFR0_EL1.SVE == 0b0001 and
+ ID_AA64ZFR0_EL1.BF16 == 0b0001.
+
+HWCAP2_I8MM
+ Functionality implied by ID_AA64ISAR1_EL1.I8MM == 0b0001.
+
+HWCAP2_BF16
+ Functionality implied by ID_AA64ISAR1_EL1.BF16 == 0b0001.
+
+HWCAP2_DGH
+ Functionality implied by ID_AA64ISAR1_EL1.DGH == 0b0001.
+
+HWCAP2_RNG
+ Functionality implied by ID_AA64ISAR0_EL1.RNDR == 0b0001.
+
+HWCAP2_BTI
+ Functionality implied by ID_AA64PFR1_EL1.BT == 0b0001.
+
+HWCAP2_MTE
+ Functionality implied by ID_AA64PFR1_EL1.MTE == 0b0010, as described
+ by Documentation/arch/arm64/memory-tagging-extension.rst.
+
+HWCAP2_ECV
+ Functionality implied by ID_AA64MMFR0_EL1.ECV == 0b0001.
+
+HWCAP2_AFP
+ Functionality implied by ID_AA64MMFR1_EL1.AFP == 0b0001.
+
+HWCAP2_RPRES
+ Functionality implied by ID_AA64ISAR2_EL1.RPRES == 0b0001.
+
+HWCAP2_MTE3
+ Functionality implied by ID_AA64PFR1_EL1.MTE == 0b0011, as described
+ by Documentation/arch/arm64/memory-tagging-extension.rst.
+
+HWCAP2_SME
+ Functionality implied by ID_AA64PFR1_EL1.SME == 0b0001, as described
+ by Documentation/arch/arm64/sme.rst.
+
+HWCAP2_SME_I16I64
+ Functionality implied by ID_AA64SMFR0_EL1.I16I64 == 0b1111.
+
+HWCAP2_SME_F64F64
+ Functionality implied by ID_AA64SMFR0_EL1.F64F64 == 0b1.
+
+HWCAP2_SME_I8I32
+ Functionality implied by ID_AA64SMFR0_EL1.I8I32 == 0b1111.
+
+HWCAP2_SME_F16F32
+ Functionality implied by ID_AA64SMFR0_EL1.F16F32 == 0b1.
+
+HWCAP2_SME_B16F32
+ Functionality implied by ID_AA64SMFR0_EL1.B16F32 == 0b1.
+
+HWCAP2_SME_F32F32
+ Functionality implied by ID_AA64SMFR0_EL1.F32F32 == 0b1.
+
+HWCAP2_SME_FA64
+ Functionality implied by ID_AA64SMFR0_EL1.FA64 == 0b1.
+
+HWCAP2_WFXT
+ Functionality implied by ID_AA64ISAR2_EL1.WFXT == 0b0010.
+
+HWCAP2_EBF16
+ Functionality implied by ID_AA64ISAR1_EL1.BF16 == 0b0010.
+
+HWCAP2_SVE_EBF16
+ Functionality implied by ID_AA64PFR0_EL1.SVE == 0b0001 and
+ ID_AA64ZFR0_EL1.BF16 == 0b0010.
+
+HWCAP2_CSSC
+ Functionality implied by ID_AA64ISAR2_EL1.CSSC == 0b0001.
+
+HWCAP2_RPRFM
+ Functionality implied by ID_AA64ISAR2_EL1.RPRFM == 0b0001.
+
+HWCAP2_SVE2P1
+ Functionality implied by ID_AA64PFR0_EL1.SVE == 0b0001 and
+ ID_AA64ZFR0_EL1.SVEver == 0b0010.
+
+HWCAP2_SME2
+ Functionality implied by ID_AA64SMFR0_EL1.SMEver == 0b0001.
+
+HWCAP2_SME2P1
+ Functionality implied by ID_AA64SMFR0_EL1.SMEver == 0b0010.
+
+HWCAP2_SMEI16I32
+ Functionality implied by ID_AA64SMFR0_EL1.I16I32 == 0b0101
+
+HWCAP2_SMEBI32I32
+ Functionality implied by ID_AA64SMFR0_EL1.BI32I32 == 0b1
+
+HWCAP2_SMEB16B16
+ Functionality implied by ID_AA64SMFR0_EL1.B16B16 == 0b1
+
+HWCAP2_SMEF16F16
+ Functionality implied by ID_AA64SMFR0_EL1.F16F16 == 0b1
+
+HWCAP2_MOPS
+ Functionality implied by ID_AA64ISAR2_EL1.MOPS == 0b0001.
+
+HWCAP2_HBC
+ Functionality implied by ID_AA64ISAR2_EL1.BC == 0b0001.
+
+HWCAP2_SVE_B16B16
+ Functionality implied by ID_AA64PFR0_EL1.SVE == 0b0001 and
+ ID_AA64ZFR0_EL1.B16B16 == 0b0001.
+
+HWCAP2_LRCPC3
+ Functionality implied by ID_AA64ISAR1_EL1.LRCPC == 0b0011.
+
+HWCAP2_LSE128
+ Functionality implied by ID_AA64ISAR0_EL1.Atomic == 0b0011.
+
+HWCAP2_FPMR
+ Functionality implied by ID_AA64PFR2_EL1.FMR == 0b0001.
+
+HWCAP2_LUT
+ Functionality implied by ID_AA64ISAR2_EL1.LUT == 0b0001.
+
+HWCAP2_FAMINMAX
+ Functionality implied by ID_AA64ISAR3_EL1.FAMINMAX == 0b0001.
+
+HWCAP2_F8CVT
+ Functionality implied by ID_AA64FPFR0_EL1.F8CVT == 0b1.
+
+HWCAP2_F8FMA
+ Functionality implied by ID_AA64FPFR0_EL1.F8FMA == 0b1.
+
+HWCAP2_F8DP4
+ Functionality implied by ID_AA64FPFR0_EL1.F8DP4 == 0b1.
+
+HWCAP2_F8DP2
+ Functionality implied by ID_AA64FPFR0_EL1.F8DP2 == 0b1.
+
+HWCAP2_F8E4M3
+ Functionality implied by ID_AA64FPFR0_EL1.F8E4M3 == 0b1.
+
+HWCAP2_F8E5M2
+ Functionality implied by ID_AA64FPFR0_EL1.F8E5M2 == 0b1.
+
+HWCAP2_SME_LUTV2
+ Functionality implied by ID_AA64SMFR0_EL1.LUTv2 == 0b1.
+
+HWCAP2_SME_F8F16
+ Functionality implied by ID_AA64SMFR0_EL1.F8F16 == 0b1.
+
+HWCAP2_SME_F8F32
+ Functionality implied by ID_AA64SMFR0_EL1.F8F32 == 0b1.
+
+HWCAP2_SME_SF8FMA
+ Functionality implied by ID_AA64SMFR0_EL1.SF8FMA == 0b1.
+
+HWCAP2_SME_SF8DP4
+ Functionality implied by ID_AA64SMFR0_EL1.SF8DP4 == 0b1.
+
+HWCAP2_SME_SF8DP2
+ Functionality implied by ID_AA64SMFR0_EL1.SF8DP2 == 0b1.
+
+HWCAP2_SME_SF8DP4
+ Functionality implied by ID_AA64SMFR0_EL1.SF8DP4 == 0b1.
+
+HWCAP2_POE
+ Functionality implied by ID_AA64MMFR3_EL1.S1POE == 0b0001.
+
+HWCAP3_MTE_FAR
+ Functionality implied by ID_AA64PFR2_EL1.MTEFAR == 0b0001.
+
+HWCAP3_MTE_STORE_ONLY
+ Functionality implied by ID_AA64PFR2_EL1.MTESTOREONLY == 0b0001.
+
+HWCAP3_LSFE
+ Functionality implied by ID_AA64ISAR3_EL1.LSFE == 0b0001
+
+
+4. Unused AT_HWCAP bits
+-----------------------
+
+For interoperation with userspace, the kernel guarantees that bits 62
+and 63 of AT_HWCAP will always be returned as 0.
diff --git a/Documentation/arch/arm64/features.rst b/Documentation/arch/arm64/features.rst
new file mode 100644
index 000000000000..03321f4309d0
--- /dev/null
+++ b/Documentation/arch/arm64/features.rst
@@ -0,0 +1,3 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+.. kernel-feat:: features arm64
diff --git a/Documentation/arch/arm64/gcs.rst b/Documentation/arch/arm64/gcs.rst
new file mode 100644
index 000000000000..226c0b008456
--- /dev/null
+++ b/Documentation/arch/arm64/gcs.rst
@@ -0,0 +1,227 @@
+===============================================
+Guarded Control Stack support for AArch64 Linux
+===============================================
+
+This document outlines briefly the interface provided to userspace by Linux in
+order to support use of the ARM Guarded Control Stack (GCS) feature.
+
+This is an outline of the most important features and issues only and not
+intended to be exhaustive.
+
+
+
+1. General
+-----------
+
+* GCS is an architecture feature intended to provide greater protection
+ against return oriented programming (ROP) attacks and to simplify the
+ implementation of features that need to collect stack traces such as
+ profiling.
+
+* When GCS is enabled a separate guarded control stack is maintained by the
+ PE which is writeable only through specific GCS operations. This
+ stores the call stack only, when a procedure call instruction is
+ performed the current PC is pushed onto the GCS and on RET the
+ address in the LR is verified against that on the top of the GCS.
+
+* When active the current GCS pointer is stored in the system register
+ GCSPR_EL0. This is readable by userspace but can only be updated
+ via specific GCS instructions.
+
+* The architecture provides instructions for switching between guarded
+ control stacks with checks to ensure that the new stack is a valid
+ target for switching.
+
+* The functionality of GCS is similar to that provided by the x86 Shadow
+ Stack feature, due to sharing of userspace interfaces the ABI refers to
+ shadow stacks rather than GCS.
+
+* Support for GCS is reported to userspace via HWCAP_GCS in the aux vector
+ AT_HWCAP entry.
+
+* GCS is enabled per thread. While there is support for disabling GCS
+ at runtime this should be done with great care.
+
+* GCS memory access faults are reported as normal memory access faults.
+
+* GCS specific errors (those reported with EC 0x2d) will be reported as
+ SIGSEGV with a si_code of SEGV_CPERR (control protection error).
+
+* GCS is supported only for AArch64.
+
+* On systems where GCS is supported GCSPR_EL0 is always readable by EL0
+ regardless of the GCS configuration for the thread.
+
+* The architecture supports enabling GCS without verifying that return values
+ in LR match those in the GCS, the LR will be ignored. This is not supported
+ by Linux.
+
+
+
+2. Enabling and disabling Guarded Control Stacks
+-------------------------------------------------
+
+* GCS is enabled and disabled for a thread via the PR_SET_SHADOW_STACK_STATUS
+ prctl(), this takes a single flags argument specifying which GCS features
+ should be used.
+
+* When set PR_SHADOW_STACK_ENABLE flag allocates a Guarded Control Stack
+ and enables GCS for the thread, enabling the functionality controlled by
+ GCSCRE0_EL1.{nTR, RVCHKEN, PCRSEL}.
+
+* When set the PR_SHADOW_STACK_PUSH flag enables the functionality controlled
+ by GCSCRE0_EL1.PUSHMEn, allowing explicit GCS pushes.
+
+* When set the PR_SHADOW_STACK_WRITE flag enables the functionality controlled
+ by GCSCRE0_EL1.STREn, allowing explicit stores to the Guarded Control Stack.
+
+* Any unknown flags will cause PR_SET_SHADOW_STACK_STATUS to return -EINVAL.
+
+* PR_LOCK_SHADOW_STACK_STATUS is passed a bitmask of features with the same
+ values as used for PR_SET_SHADOW_STACK_STATUS. Any future changes to the
+ status of the specified GCS mode bits will be rejected.
+
+* PR_LOCK_SHADOW_STACK_STATUS allows any bit to be locked, this allows
+ userspace to prevent changes to any future features.
+
+* There is no support for a process to remove a lock that has been set for
+ it.
+
+* PR_SET_SHADOW_STACK_STATUS and PR_LOCK_SHADOW_STACK_STATUS affect only the
+ thread that called them, any other running threads will be unaffected.
+
+* New threads inherit the GCS configuration of the thread that created them.
+
+* GCS is disabled on exec().
+
+* The current GCS configuration for a thread may be read with the
+ PR_GET_SHADOW_STACK_STATUS prctl(), this returns the same flags that
+ are passed to PR_SET_SHADOW_STACK_STATUS.
+
+* If GCS is disabled for a thread after having previously been enabled then
+ the stack will remain allocated for the lifetime of the thread. At present
+ any attempt to reenable GCS for the thread will be rejected, this may be
+ revisited in future.
+
+* It should be noted that since enabling GCS will result in GCS becoming
+ active immediately it is not normally possible to return from the function
+ that invoked the prctl() that enabled GCS. It is expected that the normal
+ usage will be that GCS is enabled very early in execution of a program.
+
+
+
+3. Allocation of Guarded Control Stacks
+----------------------------------------
+
+* When GCS is enabled for a thread a new Guarded Control Stack will be
+ allocated for it of half the standard stack size or 2 gigabytes,
+ whichever is smaller.
+
+* When a new thread is created by a thread which has GCS enabled then a
+ new Guarded Control Stack will be allocated for the new thread with
+ half the size of the standard stack.
+
+* When a stack is allocated by enabling GCS or during thread creation then
+ the top 8 bytes of the stack will be initialised to 0 and GCSPR_EL0 will
+ be set to point to the address of this 0 value, this can be used to
+ detect the top of the stack.
+
+* Additional Guarded Control Stacks can be allocated using the
+ map_shadow_stack() system call.
+
+* Stacks allocated using map_shadow_stack() can optionally have an end of
+ stack marker and cap placed at the top of the stack. If the flag
+ SHADOW_STACK_SET_TOKEN is specified a cap will be placed on the stack,
+ if SHADOW_STACK_SET_MARKER is not specified the cap will be the top 8
+ bytes of the stack and if it is specified then the cap will be the next
+ 8 bytes. While specifying just SHADOW_STACK_SET_MARKER by itself is
+ valid since the marker is all bits 0 it has no observable effect.
+
+* Stacks allocated using map_shadow_stack() must have a size which is a
+ multiple of 8 bytes larger than 8 bytes and must be 8 bytes aligned.
+
+* An address can be specified to map_shadow_stack(), if one is provided then
+ it must be aligned to a page boundary.
+
+* When a thread is freed the Guarded Control Stack initially allocated for
+ that thread will be freed. Note carefully that if the stack has been
+ switched this may not be the stack currently in use by the thread.
+
+
+4. Signal handling
+--------------------
+
+* A new signal frame record gcs_context encodes the current GCS mode and
+ pointer for the interrupted context on signal delivery. This will always
+ be present on systems that support GCS.
+
+* The record contains a flag field which reports the current GCS configuration
+ for the interrupted context as PR_GET_SHADOW_STACK_STATUS would.
+
+* The signal handler is run with the same GCS configuration as the interrupted
+ context.
+
+* When GCS is enabled for the interrupted thread a signal handling specific
+ GCS cap token will be written to the GCS, this is an architectural GCS cap
+ with the token type (bits 0..11) all clear. The GCSPR_EL0 reported in the
+ signal frame will point to this cap token.
+
+* The signal handler will use the same GCS as the interrupted context.
+
+* When GCS is enabled on signal entry a frame with the address of the signal
+ return handler will be pushed onto the GCS, allowing return from the signal
+ handler via RET as normal. This will not be reported in the gcs_context in
+ the signal frame.
+
+
+5. Signal return
+-----------------
+
+When returning from a signal handler:
+
+* If there is a gcs_context record in the signal frame then the GCS flags
+ and GCSPR_EL0 will be restored from that context prior to further
+ validation.
+
+* If there is no gcs_context record in the signal frame then the GCS
+ configuration will be unchanged.
+
+* If GCS is enabled on return from a signal handler then GCSPR_EL0 must
+ point to a valid GCS signal cap record, this will be popped from the
+ GCS prior to signal return.
+
+* If the GCS configuration is locked when returning from a signal then any
+ attempt to change the GCS configuration will be treated as an error. This
+ is true even if GCS was not enabled prior to signal entry.
+
+* GCS may be disabled via signal return but any attempt to enable GCS via
+ signal return will be rejected.
+
+
+6. ptrace extensions
+---------------------
+
+* A new regset NT_ARM_GCS is defined for use with PTRACE_GETREGSET and
+ PTRACE_SETREGSET.
+
+* The GCS mode, including enable and disable, may be configured via ptrace.
+ If GCS is enabled via ptrace no new GCS will be allocated for the thread.
+
+* Configuration via ptrace ignores locking of GCS mode bits.
+
+
+7. ELF coredump extensions
+---------------------------
+
+* NT_ARM_GCS notes will be added to each coredump for each thread of the
+ dumped process. The contents will be equivalent to the data that would
+ have been read if a PTRACE_GETREGSET of the corresponding type were
+ executed for each thread when the coredump was generated.
+
+
+
+8. /proc extensions
+--------------------
+
+* Guarded Control Stack pages will include "ss" in their VmFlags in
+ /proc/<pid>/smaps.
diff --git a/Documentation/arm64/hugetlbpage.rst b/Documentation/arch/arm64/hugetlbpage.rst
index a110124c11e3..a110124c11e3 100644
--- a/Documentation/arm64/hugetlbpage.rst
+++ b/Documentation/arch/arm64/hugetlbpage.rst
diff --git a/Documentation/arch/arm64/index.rst b/Documentation/arch/arm64/index.rst
new file mode 100644
index 000000000000..6a012c98bdcd
--- /dev/null
+++ b/Documentation/arch/arm64/index.rst
@@ -0,0 +1,42 @@
+.. _arm64_index:
+
+==================
+ARM64 Architecture
+==================
+
+.. toctree::
+ :maxdepth: 1
+
+ acpi_object_usage
+ amu
+ arm-acpi
+ arm-cca
+ asymmetric-32bit
+ booting
+ cpu-feature-registers
+ cpu-hotplug
+ elf_hwcaps
+ gcs
+ hugetlbpage
+ kdump
+ legacy_instructions
+ memory
+ memory-tagging-extension
+ mops
+ perf
+ pointer-authentication
+ ptdump
+ silicon-errata
+ sme
+ sve
+ tagged-address-abi
+ tagged-pointers
+
+ features
+
+.. only:: subproject and html
+
+ Indices
+ =======
+
+ * :ref:`genindex`
diff --git a/Documentation/arm64/kasan-offsets.sh b/Documentation/arch/arm64/kasan-offsets.sh
index 2dc5f9e18039..2dc5f9e18039 100644
--- a/Documentation/arm64/kasan-offsets.sh
+++ b/Documentation/arch/arm64/kasan-offsets.sh
diff --git a/Documentation/arch/arm64/kdump.rst b/Documentation/arch/arm64/kdump.rst
new file mode 100644
index 000000000000..56a89f45df28
--- /dev/null
+++ b/Documentation/arch/arm64/kdump.rst
@@ -0,0 +1,92 @@
+=======================================
+crashkernel memory reservation on arm64
+=======================================
+
+Author: Baoquan He <bhe@redhat.com>
+
+Kdump mechanism is used to capture a corrupted kernel vmcore so that
+it can be subsequently analyzed. In order to do this, a preliminarily
+reserved memory is needed to pre-load the kdump kernel and boot such
+kernel if corruption happens.
+
+That reserved memory for kdump is adapted to be able to minimally
+accommodate the kdump kernel and the user space programs needed for the
+vmcore collection.
+
+Kernel parameter
+================
+
+Through the kernel parameters below, memory can be reserved accordingly
+during the early stage of the first kernel booting so that a continuous
+large chunk of memomy can be found. The low memory reservation needs to
+be considered if the crashkernel is reserved from the high memory area.
+
+- crashkernel=size@offset
+- crashkernel=size
+- crashkernel=size,high crashkernel=size,low
+
+Low memory and high memory
+==========================
+
+For kdump reservations, low memory is the memory area under a specific
+limit, usually decided by the accessible address bits of the DMA-capable
+devices needed by the kdump kernel to run. Those devices not related to
+vmcore dumping can be ignored. On arm64, the low memory upper bound is
+not fixed: it is 1G on the RPi4 platform but 4G on most other systems.
+On special kernels built with CONFIG_ZONE_(DMA|DMA32) disabled, the
+whole system RAM is low memory. Outside of the low memory described
+above, the rest of system RAM is considered high memory.
+
+Implementation
+==============
+
+1) crashkernel=size@offset
+--------------------------
+
+The crashkernel memory must be reserved at the user-specified region or
+fail if already occupied.
+
+
+2) crashkernel=size
+-------------------
+
+The crashkernel memory region will be reserved in any available position
+according to the search order:
+
+Firstly, the kernel searches the low memory area for an available region
+with the specified size.
+
+If searching for low memory fails, the kernel falls back to searching
+the high memory area for an available region of the specified size. If
+the reservation in high memory succeeds, a default size reservation in
+the low memory will be done. Currently the default size is 128M,
+sufficient for the low memory needs of the kdump kernel.
+
+Note: crashkernel=size is the recommended option for crashkernel kernel
+reservations. The user would not need to know the system memory layout
+for a specific platform.
+
+3) crashkernel=size,high crashkernel=size,low
+---------------------------------------------
+
+crashkernel=size,(high|low) are an important supplement to
+crashkernel=size. They allows the user to specify how much memory needs
+to be allocated from the high memory and low memory respectively. On
+many systems the low memory is precious and crashkernel reservations
+from this area should be kept to a minimum.
+
+To reserve memory for crashkernel=size,high, searching is first
+attempted from the high memory region. If the reservation succeeds, the
+low memory reservation will be done subsequently.
+
+If reservation from the high memory failed, the kernel falls back to
+searching the low memory with the specified size in crashkernel=,high.
+If it succeeds, no further reservation for low memory is needed.
+
+Notes:
+
+- If crashkernel=,low is not specified, the default low memory
+ reservation will be done automatically.
+
+- if crashkernel=0,low is specified, it means that the low memory
+ reservation is omitted intentionally.
diff --git a/Documentation/arm64/legacy_instructions.rst b/Documentation/arch/arm64/legacy_instructions.rst
index 54401b22cb8f..54401b22cb8f 100644
--- a/Documentation/arm64/legacy_instructions.rst
+++ b/Documentation/arch/arm64/legacy_instructions.rst
diff --git a/Documentation/arm64/memory-tagging-extension.rst b/Documentation/arch/arm64/memory-tagging-extension.rst
index dbae47bba25e..679725030731 100644
--- a/Documentation/arm64/memory-tagging-extension.rst
+++ b/Documentation/arch/arm64/memory-tagging-extension.rst
@@ -221,7 +221,7 @@ programs should not retry in case of a non-zero system call return.
``NT_ARM_TAGGED_ADDR_CTRL`` allow ``ptrace()`` access to the tagged
address ABI control and MTE configuration of a process as per the
``prctl()`` options described in
-Documentation/arm64/tagged-address-abi.rst and above. The corresponding
+Documentation/arch/arm64/tagged-address-abi.rst and above. The corresponding
``regset`` is 1 element of 8 bytes (``sizeof(long))``).
Core dump support
diff --git a/Documentation/arch/arm64/memory.rst b/Documentation/arch/arm64/memory.rst
new file mode 100644
index 000000000000..678fbb418c3a
--- /dev/null
+++ b/Documentation/arch/arm64/memory.rst
@@ -0,0 +1,100 @@
+==============================
+Memory Layout on AArch64 Linux
+==============================
+
+Author: Catalin Marinas <catalin.marinas@arm.com>
+
+This document describes the virtual memory layout used by the AArch64
+Linux kernel. The architecture allows up to 4 levels of translation
+tables with a 4KB page size and up to 3 levels with a 64KB page size.
+
+AArch64 Linux uses either 3 levels or 4 levels of translation tables
+with the 4KB page configuration, allowing 39-bit (512GB) or 48-bit
+(256TB) virtual addresses, respectively, for both user and kernel. With
+64KB pages, only 2 levels of translation tables, allowing 42-bit (4TB)
+virtual address, are used but the memory layout is the same.
+
+ARMv8.2 adds optional support for Large Virtual Address space. This is
+only available when running with a 64KB page size and expands the
+number of descriptors in the first level of translation.
+
+TTBRx selection is given by bit 55 of the virtual address. The
+swapper_pg_dir contains only kernel (global) mappings while the user pgd
+contains only user (non-global) mappings. The swapper_pg_dir address is
+written to TTBR1 and never written to TTBR0.
+
+When using KVM without the Virtualization Host Extensions, the
+hypervisor maps kernel pages in EL2 at a fixed (and potentially
+random) offset from the linear mapping. See the kern_hyp_va macro and
+kvm_update_va_mask function for more details. MMIO devices such as
+GICv2 gets mapped next to the HYP idmap page, as do vectors when
+ARM64_SPECTRE_V3A is enabled for particular CPUs.
+
+When using KVM with the Virtualization Host Extensions, no additional
+mappings are created, since the host kernel runs directly in EL2.
+
+52-bit VA support in the kernel
+-------------------------------
+If the ARMv8.2-LVA optional feature is present, and we are running
+with a 64KB page size; then it is possible to use 52-bits of address
+space for both userspace and kernel addresses. However, any kernel
+binary that supports 52-bit must also be able to fall back to 48-bit
+at early boot time if the hardware feature is not present.
+
+This fallback mechanism necessitates the kernel .text to be in the
+higher addresses such that they are invariant to 48/52-bit VAs. Due
+to the kasan shadow being a fraction of the entire kernel VA space,
+the end of the kasan shadow must also be in the higher half of the
+kernel VA space for both 48/52-bit. (Switching from 48-bit to 52-bit,
+the end of the kasan shadow is invariant and dependent on ~0UL,
+whilst the start address will "grow" towards the lower addresses).
+
+In order to optimise phys_to_virt and virt_to_phys, the PAGE_OFFSET
+is kept constant at 0xFFF0000000000000 (corresponding to 52-bit),
+this obviates the need for an extra variable read. The physvirt
+offset and vmemmap offsets are computed at early boot to enable
+this logic.
+
+As a single binary will need to support both 48-bit and 52-bit VA
+spaces, the VMEMMAP must be sized large enough for 52-bit VAs and
+also must be sized large enough to accommodate a fixed PAGE_OFFSET.
+
+Most code in the kernel should not need to consider the VA_BITS, for
+code that does need to know the VA size the variables are
+defined as follows:
+
+VA_BITS constant the *maximum* VA space size
+
+VA_BITS_MIN constant the *minimum* VA space size
+
+vabits_actual variable the *actual* VA space size
+
+
+Maximum and minimum sizes can be useful to ensure that buffers are
+sized large enough or that addresses are positioned close enough for
+the "worst" case.
+
+52-bit userspace VAs
+--------------------
+To maintain compatibility with software that relies on the ARMv8.0
+VA space maximum size of 48-bits, the kernel will, by default,
+return virtual addresses to userspace from a 48-bit range.
+
+Software can "opt-in" to receiving VAs from a 52-bit space by
+specifying an mmap hint parameter that is larger than 48-bit.
+
+For example:
+
+.. code-block:: c
+
+ maybe_high_address = mmap(~0UL, size, prot, flags,...);
+
+It is also possible to build a debug kernel that returns addresses
+from a 52-bit space by enabling the following kernel config options:
+
+.. code-block:: sh
+
+ CONFIG_EXPERT=y && CONFIG_ARM64_FORCE_52BIT=y
+
+Note that this option is only intended for debugging applications
+and should not be used in production.
diff --git a/Documentation/arch/arm64/mops.rst b/Documentation/arch/arm64/mops.rst
new file mode 100644
index 000000000000..2ef5b147f8dc
--- /dev/null
+++ b/Documentation/arch/arm64/mops.rst
@@ -0,0 +1,44 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+===================================
+Memory copy/set instructions (MOPS)
+===================================
+
+A MOPS memory copy/set operation consists of three consecutive CPY* or SET*
+instructions: a prologue, main and epilogue (for example: CPYP, CPYM, CPYE).
+
+A main or epilogue instruction can take a MOPS exception for various reasons,
+for example when a task is migrated to a CPU with a different MOPS
+implementation, or when the instruction's alignment and size requirements are
+not met. The software exception handler is then expected to reset the registers
+and restart execution from the prologue instruction. Normally this is handled
+by the kernel.
+
+For more details refer to "D1.3.5.7 Memory Copy and Memory Set exceptions" in
+the Arm Architecture Reference Manual DDI 0487K.a (Arm ARM).
+
+.. _arm64_mops_hyp:
+
+Hypervisor requirements
+-----------------------
+
+A hypervisor running a Linux guest must handle all MOPS exceptions from the
+guest kernel, as Linux may not be able to handle the exception at all times.
+For example, a MOPS exception can be taken when the hypervisor migrates a vCPU
+to another physical CPU with a different MOPS implementation.
+
+To do this, the hypervisor must:
+
+ - Set HCRX_EL2.MCE2 to 1 so that the exception is taken to the hypervisor.
+
+ - Have an exception handler that implements the algorithm from the Arm ARM
+ rules CNTMJ and MWFQH.
+
+ - Set the guest's PSTATE.SS to 0 in the exception handler, to handle a
+ potential step of the current instruction.
+
+ Note: Clearing PSTATE.SS is needed so that a single step exception is taken
+ on the next instruction (the prologue instruction). Otherwise prologue
+ would get silently stepped over and the single step exception taken on the
+ main instruction. Note that if the guest instruction is not being stepped
+ then clearing PSTATE.SS has no effect.
diff --git a/Documentation/arch/arm64/perf.rst b/Documentation/arch/arm64/perf.rst
new file mode 100644
index 000000000000..997fd716b82f
--- /dev/null
+++ b/Documentation/arch/arm64/perf.rst
@@ -0,0 +1,238 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+.. _perf_index:
+
+====
+Perf
+====
+
+Perf Event Attributes
+=====================
+
+:Author: Andrew Murray <andrew.murray@arm.com>
+:Date: 2019-03-06
+
+exclude_user
+------------
+
+This attribute excludes userspace.
+
+Userspace always runs at EL0 and thus this attribute will exclude EL0.
+
+
+exclude_kernel
+--------------
+
+This attribute excludes the kernel.
+
+The kernel runs at EL2 with VHE and EL1 without. Guest kernels always run
+at EL1.
+
+For the host this attribute will exclude EL1 and additionally EL2 on a VHE
+system.
+
+For the guest this attribute will exclude EL1. Please note that EL2 is
+never counted within a guest.
+
+
+exclude_hv
+----------
+
+This attribute excludes the hypervisor.
+
+For a VHE host this attribute is ignored as we consider the host kernel to
+be the hypervisor.
+
+For a non-VHE host this attribute will exclude EL2 as we consider the
+hypervisor to be any code that runs at EL2 which is predominantly used for
+guest/host transitions.
+
+For the guest this attribute has no effect. Please note that EL2 is
+never counted within a guest.
+
+
+exclude_host / exclude_guest
+----------------------------
+
+These attributes exclude the KVM host and guest, respectively.
+
+The KVM host may run at EL0 (userspace), EL1 (non-VHE kernel) and EL2 (VHE
+kernel or non-VHE hypervisor).
+
+The KVM guest may run at EL0 (userspace) and EL1 (kernel).
+
+Due to the overlapping exception levels between host and guests we cannot
+exclusively rely on the PMU's hardware exception filtering - therefore we
+must enable/disable counting on the entry and exit to the guest. This is
+performed differently on VHE and non-VHE systems.
+
+For non-VHE systems we exclude EL2 for exclude_host - upon entering and
+exiting the guest we disable/enable the event as appropriate based on the
+exclude_host and exclude_guest attributes.
+
+For VHE systems we exclude EL1 for exclude_guest and exclude both EL0,EL2
+for exclude_host. Upon entering and exiting the guest we modify the event
+to include/exclude EL0 as appropriate based on the exclude_host and
+exclude_guest attributes.
+
+The statements above also apply when these attributes are used within a
+non-VHE guest however please note that EL2 is never counted within a guest.
+
+
+Accuracy
+--------
+
+On non-VHE hosts we enable/disable counters on the entry/exit of host/guest
+transition at EL2 - however there is a period of time between
+enabling/disabling the counters and entering/exiting the guest. We are
+able to eliminate counters counting host events on the boundaries of guest
+entry/exit when counting guest events by filtering out EL2 for
+exclude_host. However when using !exclude_hv there is a small blackout
+window at the guest entry/exit where host events are not captured.
+
+On VHE systems there are no blackout windows.
+
+Perf Userspace PMU Hardware Counter Access
+==========================================
+
+Overview
+--------
+The perf userspace tool relies on the PMU to monitor events. It offers an
+abstraction layer over the hardware counters since the underlying
+implementation is cpu-dependent.
+Arm64 allows userspace tools to have access to the registers storing the
+hardware counters' values directly.
+
+This targets specifically self-monitoring tasks in order to reduce the overhead
+by directly accessing the registers without having to go through the kernel.
+
+How-to
+------
+The focus is set on the armv8 PMUv3 which makes sure that the access to the pmu
+registers is enabled and that the userspace has access to the relevant
+information in order to use them.
+
+In order to have access to the hardware counters, the global sysctl
+kernel/perf_user_access must first be enabled:
+
+.. code-block:: sh
+
+ echo 1 > /proc/sys/kernel/perf_user_access
+
+It is necessary to open the event using the perf tool interface with config1:1
+attr bit set: the sys_perf_event_open syscall returns a fd which can
+subsequently be used with the mmap syscall in order to retrieve a page of memory
+containing information about the event. The PMU driver uses this page to expose
+to the user the hardware counter's index and other necessary data. Using this
+index enables the user to access the PMU registers using the `mrs` instruction.
+Access to the PMU registers is only valid while the sequence lock is unchanged.
+In particular, the PMSELR_EL0 register is zeroed each time the sequence lock is
+changed.
+
+The userspace access is supported in libperf using the perf_evsel__mmap()
+and perf_evsel__read() functions. See `tools/lib/perf/tests/test-evsel.c`_ for
+an example.
+
+About heterogeneous systems
+---------------------------
+On heterogeneous systems such as big.LITTLE, userspace PMU counter access can
+only be enabled when the tasks are pinned to a homogeneous subset of cores and
+the corresponding PMU instance is opened by specifying the 'type' attribute.
+The use of generic event types is not supported in this case.
+
+Have a look at `tools/perf/arch/arm64/tests/user-events.c`_ for an example. It
+can be run using the perf tool to check that the access to the registers works
+correctly from userspace:
+
+.. code-block:: sh
+
+ perf test -v user
+
+About chained events and counter sizes
+--------------------------------------
+The user can request either a 32-bit (config1:0 == 0) or 64-bit (config1:0 == 1)
+counter along with userspace access. The sys_perf_event_open syscall will fail
+if a 64-bit counter is requested and the hardware doesn't support 64-bit
+counters. Chained events are not supported in conjunction with userspace counter
+access. If a 32-bit counter is requested on hardware with 64-bit counters, then
+userspace must treat the upper 32-bits read from the counter as UNKNOWN. The
+'pmc_width' field in the user page will indicate the valid width of the counter
+and should be used to mask the upper bits as needed.
+
+.. Links
+.. _tools/perf/arch/arm64/tests/user-events.c:
+ https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/tools/perf/arch/arm64/tests/user-events.c
+.. _tools/lib/perf/tests/test-evsel.c:
+ https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/tools/lib/perf/tests/test-evsel.c
+
+Event Counting Threshold
+==========================================
+
+Overview
+--------
+
+FEAT_PMUv3_TH (Armv8.8) permits a PMU counter to increment only on
+events whose count meets a specified threshold condition. For example if
+threshold_compare is set to 2 ('Greater than or equal'), and the
+threshold is set to 2, then the PMU counter will now only increment by
+when an event would have previously incremented the PMU counter by 2 or
+more on a single processor cycle.
+
+To increment by 1 after passing the threshold condition instead of the
+number of events on that cycle, add the 'threshold_count' option to the
+commandline.
+
+How-to
+------
+
+These are the parameters for controlling the feature:
+
+.. list-table::
+ :header-rows: 1
+
+ * - Parameter
+ - Description
+ * - threshold
+ - Value to threshold the event by. A value of 0 means that
+ thresholding is disabled and the other parameters have no effect.
+ * - threshold_compare
+ - | Comparison function to use, with the following values supported:
+ |
+ | 0: Not-equal
+ | 1: Equals
+ | 2: Greater-than-or-equal
+ | 3: Less-than
+ * - threshold_count
+ - If this is set, count by 1 after passing the threshold condition
+ instead of the value of the event on this cycle.
+
+The threshold, threshold_compare and threshold_count values can be
+provided per event, for example:
+
+.. code-block:: sh
+
+ perf stat -e stall_slot/threshold=2,threshold_compare=2/ \
+ -e dtlb_walk/threshold=10,threshold_compare=3,threshold_count/
+
+In this example the stall_slot event will count by 2 or more on every
+cycle where 2 or more stalls happen. And dtlb_walk will count by 1 on
+every cycle where the number of dtlb walks were less than 10.
+
+The maximum supported threshold value can be read from the caps of each
+PMU, for example:
+
+.. code-block:: sh
+
+ cat /sys/bus/event_source/devices/armv8_pmuv3/caps/threshold_max
+
+ 0x000000ff
+
+If a value higher than this is given, then opening the event will result
+in an error. The highest possible maximum is 4095, as the config field
+for threshold is limited to 12 bits, and the Perf tool will refuse to
+parse higher values.
+
+If the PMU doesn't support FEAT_PMUv3_TH, then threshold_max will read
+0, and attempting to set a threshold value will also result in an error.
+threshold_max will also read as 0 on aarch32 guests, even if the host
+is running on hardware with the feature.
diff --git a/Documentation/arm64/pointer-authentication.rst b/Documentation/arch/arm64/pointer-authentication.rst
index e5dad2e40aa8..e5dad2e40aa8 100644
--- a/Documentation/arm64/pointer-authentication.rst
+++ b/Documentation/arch/arm64/pointer-authentication.rst
diff --git a/Documentation/arch/arm64/ptdump.rst b/Documentation/arch/arm64/ptdump.rst
new file mode 100644
index 000000000000..51eb902ba41a
--- /dev/null
+++ b/Documentation/arch/arm64/ptdump.rst
@@ -0,0 +1,94 @@
+======================
+Kernel page table dump
+======================
+
+ptdump is a debugfs interface that provides a detailed dump of the
+kernel page tables. It offers a comprehensive overview of the kernel
+virtual memory layout as well as the attributes associated with the
+various regions in a human-readable format. It is useful to dump the
+kernel page tables to verify permissions and memory types. Examining the
+page table entries and permissions helps identify potential security
+vulnerabilities such as mappings with overly permissive access rights or
+improper memory protections.
+
+Memory hotplug allows dynamic expansion or contraction of available
+memory without requiring a system reboot. To maintain the consistency
+and integrity of the memory management data structures, arm64 makes use
+of the ``mem_hotplug_lock`` semaphore in write mode. Additionally, in
+read mode, ``mem_hotplug_lock`` supports an efficient implementation of
+``get_online_mems()`` and ``put_online_mems()``. These protect the
+offlining of memory being accessed by the ptdump code.
+
+In order to dump the kernel page tables, enable the following
+configurations and mount debugfs::
+
+ CONFIG_PTDUMP_DEBUGFS=y
+
+ mount -t debugfs nodev /sys/kernel/debug
+ cat /sys/kernel/debug/kernel_page_tables
+
+On analysing the output of ``cat /sys/kernel/debug/kernel_page_tables``
+one can derive information about the virtual address range of the entry,
+followed by size of the memory region covered by this entry, the
+hierarchical structure of the page tables and finally the attributes
+associated with each page. The page attributes provide information about
+access permissions, execution capability, type of mapping such as leaf
+level PTE or block level PGD, PMD and PUD, and access status of a page
+within the kernel memory. Assessing these attributes can assist in
+understanding the memory layout, access patterns and security
+characteristics of the kernel pages.
+
+Kernel virtual memory layout example::
+
+ start address end address size attributes
+ +---------------------------------------------------------------------------------------+
+ | ---[ Linear Mapping start ]---------------------------------------------------------- |
+ | .................. |
+ | 0xfff0000000000000-0xfff0000000210000 2112K PTE RW NX SHD AF UXN MEM/NORMAL-TAGGED |
+ | 0xfff0000000210000-0xfff0000001c00000 26560K PTE ro NX SHD AF UXN MEM/NORMAL |
+ | .................. |
+ | ---[ Linear Mapping end ]------------------------------------------------------------ |
+ +---------------------------------------------------------------------------------------+
+ | ---[ Modules start ]----------------------------------------------------------------- |
+ | .................. |
+ | 0xffff800000000000-0xffff800008000000 128M PTE |
+ | .................. |
+ | ---[ Modules end ]------------------------------------------------------------------- |
+ +---------------------------------------------------------------------------------------+
+ | ---[ vmalloc() area ]---------------------------------------------------------------- |
+ | .................. |
+ | 0xffff800008010000-0xffff800008200000 1984K PTE ro x SHD AF UXN MEM/NORMAL |
+ | 0xffff800008200000-0xffff800008e00000 12M PTE ro x SHD AF CON UXN MEM/NORMAL |
+ | .................. |
+ | ---[ vmalloc() end ]----------------------------------------------------------------- |
+ +---------------------------------------------------------------------------------------+
+ | ---[ Fixmap start ]------------------------------------------------------------------ |
+ | .................. |
+ | 0xfffffbfffdb80000-0xfffffbfffdb90000 64K PTE ro x SHD AF UXN MEM/NORMAL |
+ | 0xfffffbfffdb90000-0xfffffbfffdba0000 64K PTE ro NX SHD AF UXN MEM/NORMAL |
+ | .................. |
+ | ---[ Fixmap end ]-------------------------------------------------------------------- |
+ +---------------------------------------------------------------------------------------+
+ | ---[ PCI I/O start ]----------------------------------------------------------------- |
+ | .................. |
+ | 0xfffffbfffe800000-0xfffffbffff800000 16M PTE |
+ | .................. |
+ | ---[ PCI I/O end ]------------------------------------------------------------------- |
+ +---------------------------------------------------------------------------------------+
+ | ---[ vmemmap start ]----------------------------------------------------------------- |
+ | .................. |
+ | 0xfffffc0002000000-0xfffffc0002200000 2M PTE RW NX SHD AF UXN MEM/NORMAL |
+ | 0xfffffc0002200000-0xfffffc0020000000 478M PTE |
+ | .................. |
+ | ---[ vmemmap end ]------------------------------------------------------------------- |
+ +---------------------------------------------------------------------------------------+
+
+``cat /sys/kernel/debug/kernel_page_tables`` output::
+
+ 0xfff0000001c00000-0xfff0000080000000 2020M PTE RW NX SHD AF UXN MEM/NORMAL-TAGGED
+ 0xfff0000080000000-0xfff0000800000000 30G PMD
+ 0xfff0000800000000-0xfff0000800700000 7M PTE RW NX SHD AF UXN MEM/NORMAL-TAGGED
+ 0xfff0000800700000-0xfff0000800710000 64K PTE ro NX SHD AF UXN MEM/NORMAL-TAGGED
+ 0xfff0000800710000-0xfff0000880000000 2089920K PTE RW NX SHD AF UXN MEM/NORMAL-TAGGED
+ 0xfff0000880000000-0xfff0040000000000 4062G PMD
+ 0xfff0040000000000-0xffff800000000000 3964T PGD
diff --git a/Documentation/arch/arm64/silicon-errata.rst b/Documentation/arch/arm64/silicon-errata.rst
new file mode 100644
index 000000000000..a7ec57060f64
--- /dev/null
+++ b/Documentation/arch/arm64/silicon-errata.rst
@@ -0,0 +1,307 @@
+=======================================
+Silicon Errata and Software Workarounds
+=======================================
+
+Author: Will Deacon <will.deacon@arm.com>
+
+Date : 27 November 2015
+
+It is an unfortunate fact of life that hardware is often produced with
+so-called "errata", which can cause it to deviate from the architecture
+under specific circumstances. For hardware produced by ARM, these
+errata are broadly classified into the following categories:
+
+ ========== ========================================================
+ Category A A critical error without a viable workaround.
+ Category B A significant or critical error with an acceptable
+ workaround.
+ Category C A minor error that is not expected to occur under normal
+ operation.
+ ========== ========================================================
+
+For more information, consult one of the "Software Developers Errata
+Notice" documents available on infocenter.arm.com (registration
+required).
+
+As far as Linux is concerned, Category B errata may require some special
+treatment in the operating system. For example, avoiding a particular
+sequence of code, or configuring the processor in a particular way. A
+less common situation may require similar actions in order to declassify
+a Category A erratum into a Category C erratum. These are collectively
+known as "software workarounds" and are only required in the minority of
+cases (e.g. those cases that both require a non-secure workaround *and*
+can be triggered by Linux).
+
+For software workarounds that may adversely impact systems unaffected by
+the erratum in question, a Kconfig entry is added under "Kernel
+Features" -> "ARM errata workarounds via the alternatives framework".
+With the exception of workarounds for errata deemed "rare" by Arm, these
+are enabled by default and patched in at runtime when an affected CPU is
+detected. For less-intrusive workarounds, a Kconfig option is not
+available and the code is structured (preferably with a comment) in such
+a way that the erratum will not be hit.
+
+This approach can make it slightly onerous to determine exactly which
+errata are worked around in an arbitrary kernel source tree, so this
+file acts as a registry of software workarounds in the Linux Kernel and
+will be updated when new workarounds are committed and backported to
+stable kernels.
+
++----------------+-----------------+-----------------+-----------------------------+
+| Implementor | Component | Erratum ID | Kconfig |
++================+=================+=================+=============================+
+| Allwinner | A64/R18 | UNKNOWN1 | SUN50I_ERRATUM_UNKNOWN1 |
++----------------+-----------------+-----------------+-----------------------------+
++----------------+-----------------+-----------------+-----------------------------+
+| Ampere | AmpereOne | AC03_CPU_38 | AMPERE_ERRATUM_AC03_CPU_38 |
++----------------+-----------------+-----------------+-----------------------------+
+| Ampere | AmpereOne AC04 | AC04_CPU_10 | AMPERE_ERRATUM_AC03_CPU_38 |
++----------------+-----------------+-----------------+-----------------------------+
+| Ampere | AmpereOne AC04 | AC04_CPU_23 | AMPERE_ERRATUM_AC04_CPU_23 |
++----------------+-----------------+-----------------+-----------------------------+
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A510 | #2457168 | ARM64_ERRATUM_2457168 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A510 | #2064142 | ARM64_ERRATUM_2064142 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A510 | #2038923 | ARM64_ERRATUM_2038923 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A510 | #1902691 | ARM64_ERRATUM_1902691 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A510 | #2051678 | ARM64_ERRATUM_2051678 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A510 | #2077057 | ARM64_ERRATUM_2077057 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A510 | #2441009 | ARM64_ERRATUM_2441009 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A510 | #2658417 | ARM64_ERRATUM_2658417 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A510 | #3117295 | ARM64_ERRATUM_3117295 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A520 | #2966298 | ARM64_ERRATUM_2966298 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A53 | #826319 | ARM64_ERRATUM_826319 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A53 | #827319 | ARM64_ERRATUM_827319 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A53 | #824069 | ARM64_ERRATUM_824069 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A53 | #819472 | ARM64_ERRATUM_819472 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A53 | #845719 | ARM64_ERRATUM_845719 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A53 | #843419 | ARM64_ERRATUM_843419 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A55 | #1024718 | ARM64_ERRATUM_1024718 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A55 | #1530923 | ARM64_ERRATUM_1530923 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A55 | #2441007 | ARM64_ERRATUM_2441007 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A57 | #832075 | ARM64_ERRATUM_832075 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A57 | #852523 | N/A |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A57 | #834220 | ARM64_ERRATUM_834220 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A57 | #1319537 | ARM64_ERRATUM_1319367 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A57 | #1742098 | ARM64_ERRATUM_1742098 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A72 | #853709 | N/A |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A72 | #1319367 | ARM64_ERRATUM_1319367 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A72 | #1655431 | ARM64_ERRATUM_1742098 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A73 | #858921 | ARM64_ERRATUM_858921 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A76 | #1188873,1418040| ARM64_ERRATUM_1418040 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A76 | #1165522 | ARM64_ERRATUM_1165522 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A76 | #1286807 | ARM64_ERRATUM_1286807 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A76 | #1463225 | ARM64_ERRATUM_1463225 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A76 | #1490853 | N/A |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A76 | #3324349 | ARM64_ERRATUM_3194386 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A77 | #1491015 | N/A |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A77 | #1508412 | ARM64_ERRATUM_1508412 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A77 | #3324348 | ARM64_ERRATUM_3194386 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A78 | #3324344 | ARM64_ERRATUM_3194386 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A78C | #3324346,3324347| ARM64_ERRATUM_3194386 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A710 | #2119858 | ARM64_ERRATUM_2119858 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A710 | #2054223 | ARM64_ERRATUM_2054223 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A710 | #2224489 | ARM64_ERRATUM_2224489 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A710 | #3324338 | ARM64_ERRATUM_3194386 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A715 | #2645198 | ARM64_ERRATUM_2645198 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A715 | #3456084 | ARM64_ERRATUM_3194386 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A720 | #3456091 | ARM64_ERRATUM_3194386 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A725 | #3456106 | ARM64_ERRATUM_3194386 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-X1 | #1502854 | N/A |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-X1 | #3324344 | ARM64_ERRATUM_3194386 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-X1C | #3324346 | ARM64_ERRATUM_3194386 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-X2 | #2119858 | ARM64_ERRATUM_2119858 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-X2 | #2224489 | ARM64_ERRATUM_2224489 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-X2 | #3324338 | ARM64_ERRATUM_3194386 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-X3 | #3324335 | ARM64_ERRATUM_3194386 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-X4 | #3194386 | ARM64_ERRATUM_3194386 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-X925 | #3324334 | ARM64_ERRATUM_3194386 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Neoverse-N1 | #1188873,1418040| ARM64_ERRATUM_1418040 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Neoverse-N1 | #1349291 | N/A |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Neoverse-N1 | #1490853 | N/A |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Neoverse-N1 | #1542419 | ARM64_ERRATUM_1542419 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Neoverse-N1 | #3324349 | ARM64_ERRATUM_3194386 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Neoverse-N2 | #2139208 | ARM64_ERRATUM_2139208 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Neoverse-N2 | #2067961 | ARM64_ERRATUM_2067961 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Neoverse-N2 | #2253138 | ARM64_ERRATUM_2253138 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Neoverse-N2 | #3324339 | ARM64_ERRATUM_3194386 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Neoverse-N3 | #3456111 | ARM64_ERRATUM_3194386 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Neoverse-V1 | #1619801 | N/A |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Neoverse-V1 | #3324341 | ARM64_ERRATUM_3194386 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Neoverse-V2 | #3324336 | ARM64_ERRATUM_3194386 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Neoverse-V3 | #3312417 | ARM64_ERRATUM_3194386 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Neoverse-V3AE | #3312417 | ARM64_ERRATUM_3194386 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | MMU-500 | #841119,826419 | ARM_SMMU_MMU_500_CPRE_ERRATA|
+| | | #562869,1047329 | |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | MMU-600 | #1076982,1209401| N/A |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | MMU-700 | #2268618,2812531| N/A |
++----------------+-----------------+-----------------+-----------------------------+
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | GIC-700 | #2941627 | ARM64_ERRATUM_2941627 |
++----------------+-----------------+-----------------+-----------------------------+
++----------------+-----------------+-----------------+-----------------------------+
+| Broadcom | Brahma-B53 | N/A | ARM64_ERRATUM_845719 |
++----------------+-----------------+-----------------+-----------------------------+
+| Broadcom | Brahma-B53 | N/A | ARM64_ERRATUM_843419 |
++----------------+-----------------+-----------------+-----------------------------+
++----------------+-----------------+-----------------+-----------------------------+
+| Cavium | ThunderX ITS | #22375,24313 | CAVIUM_ERRATUM_22375 |
++----------------+-----------------+-----------------+-----------------------------+
+| Cavium | ThunderX ITS | #23144 | CAVIUM_ERRATUM_23144 |
++----------------+-----------------+-----------------+-----------------------------+
+| Cavium | ThunderX GICv3 | #23154,38545 | CAVIUM_ERRATUM_23154 |
++----------------+-----------------+-----------------+-----------------------------+
+| Cavium | ThunderX GICv3 | #38539 | N/A |
++----------------+-----------------+-----------------+-----------------------------+
+| Cavium | ThunderX Core | #27456 | CAVIUM_ERRATUM_27456 |
++----------------+-----------------+-----------------+-----------------------------+
+| Cavium | ThunderX Core | #30115 | CAVIUM_ERRATUM_30115 |
++----------------+-----------------+-----------------+-----------------------------+
+| Cavium | ThunderX SMMUv2 | #27704 | N/A |
++----------------+-----------------+-----------------+-----------------------------+
+| Cavium | ThunderX2 SMMUv3| #74 | N/A |
++----------------+-----------------+-----------------+-----------------------------+
+| Cavium | ThunderX2 SMMUv3| #126 | N/A |
++----------------+-----------------+-----------------+-----------------------------+
+| Cavium | ThunderX2 Core | #219 | CAVIUM_TX2_ERRATUM_219 |
++----------------+-----------------+-----------------+-----------------------------+
++----------------+-----------------+-----------------+-----------------------------+
+| Marvell | ARM-MMU-500 | #582743 | N/A |
++----------------+-----------------+-----------------+-----------------------------+
++----------------+-----------------+-----------------+-----------------------------+
+| NVIDIA | Carmel Core | N/A | NVIDIA_CARMEL_CNP_ERRATUM |
++----------------+-----------------+-----------------+-----------------------------+
+| NVIDIA | T241 GICv3/4.x | T241-FABRIC-4 | N/A |
++----------------+-----------------+-----------------+-----------------------------+
++----------------+-----------------+-----------------+-----------------------------+
+| Freescale/NXP | LS2080A/LS1043A | A-008585 | FSL_ERRATUM_A008585 |
++----------------+-----------------+-----------------+-----------------------------+
++----------------+-----------------+-----------------+-----------------------------+
+| Hisilicon | Hip0{5,6,7} | #161010101 | HISILICON_ERRATUM_161010101 |
++----------------+-----------------+-----------------+-----------------------------+
+| Hisilicon | Hip0{6,7} | #161010701 | N/A |
++----------------+-----------------+-----------------+-----------------------------+
+| Hisilicon | Hip0{6,7} | #161010803 | N/A |
++----------------+-----------------+-----------------+-----------------------------+
+| Hisilicon | Hip07 | #161600802 | HISILICON_ERRATUM_161600802 |
++----------------+-----------------+-----------------+-----------------------------+
+| Hisilicon | Hip08 SMMU PMCG | #162001800 | N/A |
++----------------+-----------------+-----------------+-----------------------------+
+| Hisilicon | Hip{08,09,09A,10| #162001900 | N/A |
+| | ,10C,11} | | |
+| | SMMU PMCG | | |
++----------------+-----------------+-----------------+-----------------------------+
+| Hisilicon | Hip09 | #162100801 | HISILICON_ERRATUM_162100801 |
++----------------+-----------------+-----------------+-----------------------------+
++----------------+-----------------+-----------------+-----------------------------+
+| Qualcomm Tech. | Kryo/Falkor v1 | E1003 | QCOM_FALKOR_ERRATUM_1003 |
++----------------+-----------------+-----------------+-----------------------------+
+| Qualcomm Tech. | Kryo/Falkor v1 | E1009 | QCOM_FALKOR_ERRATUM_1009 |
++----------------+-----------------+-----------------+-----------------------------+
+| Qualcomm Tech. | QDF2400 ITS | E0065 | QCOM_QDF2400_ERRATUM_0065 |
++----------------+-----------------+-----------------+-----------------------------+
+| Qualcomm Tech. | Falkor v{1,2} | E1041 | QCOM_FALKOR_ERRATUM_1041 |
++----------------+-----------------+-----------------+-----------------------------+
+| Qualcomm Tech. | Kryo4xx Gold | N/A | ARM64_ERRATUM_1463225 |
++----------------+-----------------+-----------------+-----------------------------+
+| Qualcomm Tech. | Kryo4xx Gold | N/A | ARM64_ERRATUM_1418040 |
++----------------+-----------------+-----------------+-----------------------------+
+| Qualcomm Tech. | Kryo4xx Silver | N/A | ARM64_ERRATUM_1530923 |
++----------------+-----------------+-----------------+-----------------------------+
+| Qualcomm Tech. | Kryo4xx Silver | N/A | ARM64_ERRATUM_1024718 |
++----------------+-----------------+-----------------+-----------------------------+
+| Qualcomm Tech. | Kryo4xx Gold | N/A | ARM64_ERRATUM_1286807 |
++----------------+-----------------+-----------------+-----------------------------+
++----------------+-----------------+-----------------+-----------------------------+
+| Rockchip | RK3588 | #3588001 | ROCKCHIP_ERRATUM_3588001 |
++----------------+-----------------+-----------------+-----------------------------+
+| Rockchip | RK3568 | #3568002 | ROCKCHIP_ERRATUM_3568002 |
++----------------+-----------------+-----------------+-----------------------------+
++----------------+-----------------+-----------------+-----------------------------+
+| Fujitsu | A64FX | E#010001 | FUJITSU_ERRATUM_010001 |
++----------------+-----------------+-----------------+-----------------------------+
++----------------+-----------------+-----------------+-----------------------------+
+| ASR | ASR8601 | #8601001 | N/A |
++----------------+-----------------+-----------------+-----------------------------+
++----------------+-----------------+-----------------+-----------------------------+
+| Microsoft | Azure Cobalt 100| #2139208 | ARM64_ERRATUM_2139208 |
++----------------+-----------------+-----------------+-----------------------------+
+| Microsoft | Azure Cobalt 100| #2067961 | ARM64_ERRATUM_2067961 |
++----------------+-----------------+-----------------+-----------------------------+
+| Microsoft | Azure Cobalt 100| #2253138 | ARM64_ERRATUM_2253138 |
++----------------+-----------------+-----------------+-----------------------------+
+| Microsoft | Azure Cobalt 100| #3324339 | ARM64_ERRATUM_3194386 |
++----------------+-----------------+-----------------+-----------------------------+
diff --git a/Documentation/arm64/sme.rst b/Documentation/arch/arm64/sme.rst
index 1c43ea12eb4f..583f2ee9cb97 100644
--- a/Documentation/arm64/sme.rst
+++ b/Documentation/arch/arm64/sme.rst
@@ -69,29 +69,19 @@ model features for SME is included in Appendix A.
vectors from 0 to VL/8-1 stored in the same endianness invariant format as is
used for SVE vectors.
-* On thread creation TPIDR2_EL0 is preserved unless CLONE_SETTLS is specified,
- in which case it is set to 0.
+* On thread creation PSTATE.ZA and TPIDR2_EL0 are preserved unless CLONE_VM
+ is specified, in which case PSTATE.ZA is set to 0 and TPIDR2_EL0 is set to 0.
2. Vector lengths
------------------
-SME defines a second vector length similar to the SVE vector length which is
+SME defines a second vector length similar to the SVE vector length which
controls the size of the streaming mode SVE vectors and the ZA matrix array.
The ZA matrix is square with each side having as many bytes as a streaming
mode SVE vector.
-3. Sharing of streaming and non-streaming mode SVE state
----------------------------------------------------------
-
-It is implementation defined which if any parts of the SVE state are shared
-between streaming and non-streaming modes. When switching between modes
-via software interfaces such as ptrace if no register content is provided as
-part of switching no state will be assumed to be shared and everything will
-be zeroed.
-
-
-4. System call behaviour
+3. System call behaviour
-------------------------
* On syscall PSTATE.ZA is preserved, if PSTATE.ZA==1 then the contents of the
@@ -112,10 +102,10 @@ be zeroed.
exceptions for execve() described in section 6.
-5. Signal handling
+4. Signal handling
-------------------
-* Signal handlers are invoked with streaming mode and ZA disabled.
+* Signal handlers are invoked with PSTATE.SM=0, PSTATE.ZA=0, and TPIDR2_EL0=0.
* A new signal frame record TPIDR2_MAGIC is added formatted as a struct
tpidr2_context to allow access to TPIDR2_EL0 from signal handlers.
@@ -238,12 +228,12 @@ prctl(PR_SME_SET_VL, unsigned long arg)
bits of Z0..Z31 except for Z0 bits [127:0] .. Z31 bits [127:0] to become
unspecified, including both streaming and non-streaming SVE state.
Calling PR_SME_SET_VL with vl equal to the thread's current vector
- length, or calling PR_SME_SET_VL with the PR_SVE_SET_VL_ONEXEC flag,
+ length, or calling PR_SME_SET_VL with the PR_SME_SET_VL_ONEXEC flag,
does not constitute a change to the vector length for this purpose.
- * Changing the vector length causes PSTATE.ZA and PSTATE.SM to be cleared.
+ * Changing the vector length causes PSTATE.ZA to be cleared.
Calling PR_SME_SET_VL with vl equal to the thread's current vector
- length, or calling PR_SME_SET_VL with the PR_SVE_SET_VL_ONEXEC flag,
+ length, or calling PR_SME_SET_VL with the PR_SME_SET_VL_ONEXEC flag,
does not constitute a change to the vector length for this purpose.
@@ -322,7 +312,7 @@ The regset data starts with struct user_za_header, containing:
VL is supported.
* The size and layout of the payload depends on the header fields. The
- SME_PT_ZA_*() macros are provided to facilitate access to the data.
+ ZA_PT_ZA*() macros are provided to facilitate access to the data.
* In either case, for SETREGSET it is permissible to omit the payload, in which
case the vector length and flags are changed and PSTATE.ZA is set to 0
@@ -346,6 +336,10 @@ The regset data starts with struct user_za_header, containing:
* Writes to NT_ARM_ZT will set PSTATE.ZA to 1.
+* If any register data is provided along with SME_PT_VL_ONEXEC then the
+ registers data will be interpreted with the current vector length, not
+ the vector length configured for use on exec.
+
8. ELF coredump extensions
---------------------------
@@ -379,9 +373,8 @@ The regset data starts with struct user_za_header, containing:
/proc/sys/abi/sme_default_vector_length
Writing the text representation of an integer to this file sets the system
- default vector length to the specified value, unless the value is greater
- than the maximum vector length supported by the system in which case the
- default vector length is set to that maximum.
+ default vector length to the specified value rounded to a supported value
+ using the same rules as for setting vector length via PR_SME_SET_VL.
The result can be determined by reopening the file and reading its
contents.
@@ -465,4 +458,4 @@ References
[2] arch/arm64/include/uapi/asm/ptrace.h
AArch64 Linux ptrace ABI definitions
-[3] Documentation/arm64/cpu-feature-registers.rst
+[3] Documentation/arch/arm64/cpu-feature-registers.rst
diff --git a/Documentation/arm64/sve.rst b/Documentation/arch/arm64/sve.rst
index 1b90a30382ac..a61c9d0efe4d 100644
--- a/Documentation/arm64/sve.rst
+++ b/Documentation/arch/arm64/sve.rst
@@ -117,11 +117,6 @@ the SVE instruction set architecture.
* The SVE registers are not used to pass arguments to or receive results from
any syscall.
-* In practice the affected registers/bits will be preserved or will be replaced
- with zeros on return from a syscall, but userspace should not make
- assumptions about this. The kernel behaviour may vary on a case-by-case
- basis.
-
* All other SVE state of a thread, including the currently configured vector
length, the state of the PR_SVE_VL_INHERIT flag, and the deferred vector
length (if any), is preserved across all syscalls, subject to the specific
@@ -407,6 +402,15 @@ The regset data starts with struct user_sve_header, containing:
streaming mode and any SETREGSET of NT_ARM_SSVE will enter streaming mode
if the target was not in streaming mode.
+* On systems that do not support SVE it is permitted to use SETREGSET to
+ write SVE_PT_REGS_FPSIMD formatted data via NT_ARM_SVE, in this case the
+ vector length should be specified as 0. This allows streaming mode to be
+ disabled on systems with SME but not SVE.
+
+* If any register data is provided along with SVE_PT_VL_ONEXEC then the
+ registers data will be interpreted with the current vector length, not
+ the vector length configured for use on exec.
+
* The effect of writing a partial, incomplete payload is unspecified.
@@ -428,9 +432,8 @@ The regset data starts with struct user_sve_header, containing:
/proc/sys/abi/sve_default_vector_length
Writing the text representation of an integer to this file sets the system
- default vector length to the specified value, unless the value is greater
- than the maximum vector length supported by the system in which case the
- default vector length is set to that maximum.
+ default vector length to the specified value rounded to a supported value
+ using the same rules as for setting vector length via PR_SVE_SET_VL.
The result can be determined by reopening the file and reading its
contents.
@@ -606,7 +609,7 @@ References
[2] arch/arm64/include/uapi/asm/ptrace.h
AArch64 Linux ptrace ABI definitions
-[3] Documentation/arm64/cpu-feature-registers.rst
+[3] Documentation/arch/arm64/cpu-feature-registers.rst
[4] ARM IHI0055C
http://infocenter.arm.com/help/topic/com.arm.doc.ihi0055c/IHI0055C_beta_aapcs64.pdf
diff --git a/Documentation/arm64/tagged-address-abi.rst b/Documentation/arch/arm64/tagged-address-abi.rst
index 540a1d4fc6c9..fe24a3f158c5 100644
--- a/Documentation/arm64/tagged-address-abi.rst
+++ b/Documentation/arch/arm64/tagged-address-abi.rst
@@ -107,7 +107,7 @@ following behaviours are guaranteed:
A definition of the meaning of tagged pointers on AArch64 can be found
-in Documentation/arm64/tagged-pointers.rst.
+in Documentation/arch/arm64/tagged-pointers.rst.
3. AArch64 Tagged Address ABI Exceptions
-----------------------------------------
diff --git a/Documentation/arm64/tagged-pointers.rst b/Documentation/arch/arm64/tagged-pointers.rst
index 19d284b70384..f87a925ca9a5 100644
--- a/Documentation/arm64/tagged-pointers.rst
+++ b/Documentation/arch/arm64/tagged-pointers.rst
@@ -22,7 +22,7 @@ Passing tagged addresses to the kernel
All interpretation of userspace memory addresses by the kernel assumes
an address tag of 0x00, unless the application enables the AArch64
Tagged Address ABI explicitly
-(Documentation/arm64/tagged-address-abi.rst).
+(Documentation/arch/arm64/tagged-address-abi.rst).
This includes, but is not limited to, addresses found in:
@@ -60,11 +60,12 @@ that signal handlers in applications making use of tags cannot rely
on the tag information for user virtual addresses being maintained
in these fields unless the flag was set.
-Due to architecture limitations, bits 63:60 of the fault address
-are not preserved in response to synchronous tag check faults
-(SEGV_MTESERR) even if SA_EXPOSE_TAGBITS was set. Applications should
-treat the values of these bits as undefined in order to accommodate
-future architecture revisions which may preserve the bits.
+If FEAT_MTE_TAGGED_FAR (Armv8.9) is supported, bits 63:60 of the fault address
+are preserved in response to synchronous tag check faults (SEGV_MTESERR)
+otherwise not preserved even if SA_EXPOSE_TAGBITS was set.
+Applications should interpret the values of these bits based on
+the support for the HWCAP3_MTE_FAR. If the support is not present,
+the values of these bits should be considered as undefined otherwise valid.
For signals raised in response to watchpoint debug exceptions, the
tag information will be preserved regardless of the SA_EXPOSE_TAGBITS
diff --git a/Documentation/arch/ia64/aliasing.rst b/Documentation/arch/ia64/aliasing.rst
deleted file mode 100644
index 36a1e1d4842b..000000000000
--- a/Documentation/arch/ia64/aliasing.rst
+++ /dev/null
@@ -1,246 +0,0 @@
-==================================
-Memory Attribute Aliasing on IA-64
-==================================
-
-Bjorn Helgaas <bjorn.helgaas@hp.com>
-
-May 4, 2006
-
-
-Memory Attributes
-=================
-
- Itanium supports several attributes for virtual memory references.
- The attribute is part of the virtual translation, i.e., it is
- contained in the TLB entry. The ones of most interest to the Linux
- kernel are:
-
- == ======================
- WB Write-back (cacheable)
- UC Uncacheable
- WC Write-coalescing
- == ======================
-
- System memory typically uses the WB attribute. The UC attribute is
- used for memory-mapped I/O devices. The WC attribute is uncacheable
- like UC is, but writes may be delayed and combined to increase
- performance for things like frame buffers.
-
- The Itanium architecture requires that we avoid accessing the same
- page with both a cacheable mapping and an uncacheable mapping[1].
-
- The design of the chipset determines which attributes are supported
- on which regions of the address space. For example, some chipsets
- support either WB or UC access to main memory, while others support
- only WB access.
-
-Memory Map
-==========
-
- Platform firmware describes the physical memory map and the
- supported attributes for each region. At boot-time, the kernel uses
- the EFI GetMemoryMap() interface. ACPI can also describe memory
- devices and the attributes they support, but Linux/ia64 currently
- doesn't use this information.
-
- The kernel uses the efi_memmap table returned from GetMemoryMap() to
- learn the attributes supported by each region of physical address
- space. Unfortunately, this table does not completely describe the
- address space because some machines omit some or all of the MMIO
- regions from the map.
-
- The kernel maintains another table, kern_memmap, which describes the
- memory Linux is actually using and the attribute for each region.
- This contains only system memory; it does not contain MMIO space.
-
- The kern_memmap table typically contains only a subset of the system
- memory described by the efi_memmap. Linux/ia64 can't use all memory
- in the system because of constraints imposed by the identity mapping
- scheme.
-
- The efi_memmap table is preserved unmodified because the original
- boot-time information is required for kexec.
-
-Kernel Identity Mappings
-========================
-
- Linux/ia64 identity mappings are done with large pages, currently
- either 16MB or 64MB, referred to as "granules." Cacheable mappings
- are speculative[2], so the processor can read any location in the
- page at any time, independent of the programmer's intentions. This
- means that to avoid attribute aliasing, Linux can create a cacheable
- identity mapping only when the entire granule supports cacheable
- access.
-
- Therefore, kern_memmap contains only full granule-sized regions that
- can referenced safely by an identity mapping.
-
- Uncacheable mappings are not speculative, so the processor will
- generate UC accesses only to locations explicitly referenced by
- software. This allows UC identity mappings to cover granules that
- are only partially populated, or populated with a combination of UC
- and WB regions.
-
-User Mappings
-=============
-
- User mappings are typically done with 16K or 64K pages. The smaller
- page size allows more flexibility because only 16K or 64K has to be
- homogeneous with respect to memory attributes.
-
-Potential Attribute Aliasing Cases
-==================================
-
- There are several ways the kernel creates new mappings:
-
-mmap of /dev/mem
-----------------
-
- This uses remap_pfn_range(), which creates user mappings. These
- mappings may be either WB or UC. If the region being mapped
- happens to be in kern_memmap, meaning that it may also be mapped
- by a kernel identity mapping, the user mapping must use the same
- attribute as the kernel mapping.
-
- If the region is not in kern_memmap, the user mapping should use
- an attribute reported as being supported in the EFI memory map.
-
- Since the EFI memory map does not describe MMIO on some
- machines, this should use an uncacheable mapping as a fallback.
-
-mmap of /sys/class/pci_bus/.../legacy_mem
------------------------------------------
-
- This is very similar to mmap of /dev/mem, except that legacy_mem
- only allows mmap of the one megabyte "legacy MMIO" area for a
- specific PCI bus. Typically this is the first megabyte of
- physical address space, but it may be different on machines with
- several VGA devices.
-
- "X" uses this to access VGA frame buffers. Using legacy_mem
- rather than /dev/mem allows multiple instances of X to talk to
- different VGA cards.
-
- The /dev/mem mmap constraints apply.
-
-mmap of /proc/bus/pci/.../??.?
-------------------------------
-
- This is an MMIO mmap of PCI functions, which additionally may or
- may not be requested as using the WC attribute.
-
- If WC is requested, and the region in kern_memmap is either WC
- or UC, and the EFI memory map designates the region as WC, then
- the WC mapping is allowed.
-
- Otherwise, the user mapping must use the same attribute as the
- kernel mapping.
-
-read/write of /dev/mem
-----------------------
-
- This uses copy_from_user(), which implicitly uses a kernel
- identity mapping. This is obviously safe for things in
- kern_memmap.
-
- There may be corner cases of things that are not in kern_memmap,
- but could be accessed this way. For example, registers in MMIO
- space are not in kern_memmap, but could be accessed with a UC
- mapping. This would not cause attribute aliasing. But
- registers typically can be accessed only with four-byte or
- eight-byte accesses, and the copy_from_user() path doesn't allow
- any control over the access size, so this would be dangerous.
-
-ioremap()
----------
-
- This returns a mapping for use inside the kernel.
-
- If the region is in kern_memmap, we should use the attribute
- specified there.
-
- If the EFI memory map reports that the entire granule supports
- WB, we should use that (granules that are partially reserved
- or occupied by firmware do not appear in kern_memmap).
-
- If the granule contains non-WB memory, but we can cover the
- region safely with kernel page table mappings, we can use
- ioremap_page_range() as most other architectures do.
-
- Failing all of the above, we have to fall back to a UC mapping.
-
-Past Problem Cases
-==================
-
-mmap of various MMIO regions from /dev/mem by "X" on Intel platforms
---------------------------------------------------------------------
-
- The EFI memory map may not report these MMIO regions.
-
- These must be allowed so that X will work. This means that
- when the EFI memory map is incomplete, every /dev/mem mmap must
- succeed. It may create either WB or UC user mappings, depending
- on whether the region is in kern_memmap or the EFI memory map.
-
-mmap of 0x0-0x9FFFF /dev/mem by "hwinfo" on HP sx1000 with VGA enabled
-----------------------------------------------------------------------
-
- The EFI memory map reports the following attributes:
-
- =============== ======= ==================
- 0x00000-0x9FFFF WB only
- 0xA0000-0xBFFFF UC only (VGA frame buffer)
- 0xC0000-0xFFFFF WB only
- =============== ======= ==================
-
- This mmap is done with user pages, not kernel identity mappings,
- so it is safe to use WB mappings.
-
- The kernel VGA driver may ioremap the VGA frame buffer at 0xA0000,
- which uses a granule-sized UC mapping. This granule will cover some
- WB-only memory, but since UC is non-speculative, the processor will
- never generate an uncacheable reference to the WB-only areas unless
- the driver explicitly touches them.
-
-mmap of 0x0-0xFFFFF legacy_mem by "X"
--------------------------------------
-
- If the EFI memory map reports that the entire range supports the
- same attributes, we can allow the mmap (and we will prefer WB if
- supported, as is the case with HP sx[12]000 machines with VGA
- disabled).
-
- If EFI reports the range as partly WB and partly UC (as on sx[12]000
- machines with VGA enabled), we must fail the mmap because there's no
- safe attribute to use.
-
- If EFI reports some of the range but not all (as on Intel firmware
- that doesn't report the VGA frame buffer at all), we should fail the
- mmap and force the user to map just the specific region of interest.
-
-mmap of 0xA0000-0xBFFFF legacy_mem by "X" on HP sx1000 with VGA disabled
-------------------------------------------------------------------------
-
- The EFI memory map reports the following attributes::
-
- 0x00000-0xFFFFF WB only (no VGA MMIO hole)
-
- This is a special case of the previous case, and the mmap should
- fail for the same reason as above.
-
-read of /sys/devices/.../rom
-----------------------------
-
- For VGA devices, this may cause an ioremap() of 0xC0000. This
- used to be done with a UC mapping, because the VGA frame buffer
- at 0xA0000 prevents use of a WB granule. The UC mapping causes
- an MCA on HP sx[12]000 chipsets.
-
- We should use WB page table mappings to avoid covering the VGA
- frame buffer.
-
-Notes
-=====
-
- [1] SDM rev 2.2, vol 2, sec 4.4.1.
- [2] SDM rev 2.2, vol 2, sec 4.4.6.
diff --git a/Documentation/arch/ia64/efirtc.rst b/Documentation/arch/ia64/efirtc.rst
deleted file mode 100644
index fd8328408301..000000000000
--- a/Documentation/arch/ia64/efirtc.rst
+++ /dev/null
@@ -1,144 +0,0 @@
-==========================
-EFI Real Time Clock driver
-==========================
-
-S. Eranian <eranian@hpl.hp.com>
-
-March 2000
-
-1. Introduction
-===============
-
-This document describes the efirtc.c driver has provided for
-the IA-64 platform.
-
-The purpose of this driver is to supply an API for kernel and user applications
-to get access to the Time Service offered by EFI version 0.92.
-
-EFI provides 4 calls one can make once the OS is booted: GetTime(),
-SetTime(), GetWakeupTime(), SetWakeupTime() which are all supported by this
-driver. We describe those calls as well the design of the driver in the
-following sections.
-
-2. Design Decisions
-===================
-
-The original ideas was to provide a very simple driver to get access to,
-at first, the time of day service. This is required in order to access, in a
-portable way, the CMOS clock. A program like /sbin/hwclock uses such a clock
-to initialize the system view of the time during boot.
-
-Because we wanted to minimize the impact on existing user-level apps using
-the CMOS clock, we decided to expose an API that was very similar to the one
-used today with the legacy RTC driver (driver/char/rtc.c). However, because
-EFI provides a simpler services, not all ioctl() are available. Also
-new ioctl()s have been introduced for things that EFI provides but not the
-legacy.
-
-EFI uses a slightly different way of representing the time, noticeably
-the reference date is different. Year is the using the full 4-digit format.
-The Epoch is January 1st 1998. For backward compatibility reasons we don't
-expose this new way of representing time. Instead we use something very
-similar to the struct tm, i.e. struct rtc_time, as used by hwclock.
-One of the reasons for doing it this way is to allow for EFI to still evolve
-without necessarily impacting any of the user applications. The decoupling
-enables flexibility and permits writing wrapper code is ncase things change.
-
-The driver exposes two interfaces, one via the device file and a set of
-ioctl()s. The other is read-only via the /proc filesystem.
-
-As of today we don't offer a /proc/sys interface.
-
-To allow for a uniform interface between the legacy RTC and EFI time service,
-we have created the include/linux/rtc.h header file to contain only the
-"public" API of the two drivers. The specifics of the legacy RTC are still
-in include/linux/mc146818rtc.h.
-
-
-3. Time of day service
-======================
-
-The part of the driver gives access to the time of day service of EFI.
-Two ioctl()s, compatible with the legacy RTC calls:
-
- Read the CMOS clock::
-
- ioctl(d, RTC_RD_TIME, &rtc);
-
- Write the CMOS clock::
-
- ioctl(d, RTC_SET_TIME, &rtc);
-
-The rtc is a pointer to a data structure defined in rtc.h which is close
-to a struct tm::
-
- struct rtc_time {
- int tm_sec;
- int tm_min;
- int tm_hour;
- int tm_mday;
- int tm_mon;
- int tm_year;
- int tm_wday;
- int tm_yday;
- int tm_isdst;
- };
-
-The driver takes care of converting back an forth between the EFI time and
-this format.
-
-Those two ioctl()s can be exercised with the hwclock command:
-
-For reading::
-
- # /sbin/hwclock --show
- Mon Mar 6 15:32:32 2000 -0.910248 seconds
-
-For setting::
-
- # /sbin/hwclock --systohc
-
-Root privileges are required to be able to set the time of day.
-
-4. Wakeup Alarm service
-=======================
-
-EFI provides an API by which one can program when a machine should wakeup,
-i.e. reboot. This is very different from the alarm provided by the legacy
-RTC which is some kind of interval timer alarm. For this reason we don't use
-the same ioctl()s to get access to the service. Instead we have
-introduced 2 news ioctl()s to the interface of an RTC.
-
-We have added 2 new ioctl()s that are specific to the EFI driver:
-
- Read the current state of the alarm::
-
- ioctl(d, RTC_WKALM_RD, &wkt)
-
- Set the alarm or change its status::
-
- ioctl(d, RTC_WKALM_SET, &wkt)
-
-The wkt structure encapsulates a struct rtc_time + 2 extra fields to get
-status information::
-
- struct rtc_wkalrm {
-
- unsigned char enabled; /* =1 if alarm is enabled */
- unsigned char pending; /* =1 if alarm is pending */
-
- struct rtc_time time;
- }
-
-As of today, none of the existing user-level apps supports this feature.
-However writing such a program should be hard by simply using those two
-ioctl().
-
-Root privileges are required to be able to set the alarm.
-
-5. References
-=============
-
-Checkout the following Web site for more information on EFI:
-
-http://developer.intel.com/technology/efi/
diff --git a/Documentation/arch/ia64/err_inject.rst b/Documentation/arch/ia64/err_inject.rst
deleted file mode 100644
index 900f71e93a29..000000000000
--- a/Documentation/arch/ia64/err_inject.rst
+++ /dev/null
@@ -1,1067 +0,0 @@
-========================================
-IPF Machine Check (MC) error inject tool
-========================================
-
-IPF Machine Check (MC) error inject tool is used to inject MC
-errors from Linux. The tool is a test bed for IPF MC work flow including
-hardware correctable error handling, OS recoverable error handling, MC
-event logging, etc.
-
-The tool includes two parts: a kernel driver and a user application
-sample. The driver provides interface to PAL to inject error
-and query error injection capabilities. The driver code is in
-arch/ia64/kernel/err_inject.c. The application sample (shown below)
-provides a combination of various errors and calls the driver's interface
-(sysfs interface) to inject errors or query error injection capabilities.
-
-The tool can be used to test Intel IPF machine MC handling capabilities.
-It's especially useful for people who can not access hardware MC injection
-tool to inject error. It's also very useful to integrate with other
-software test suits to do stressful testing on IPF.
-
-Below is a sample application as part of the whole tool. The sample
-can be used as a working test tool. Or it can be expanded to include
-more features. It also can be a integrated into a library or other user
-application to have more thorough test.
-
-The sample application takes err.conf as error configuration input. GCC
-compiles the code. After you install err_inject driver, you can run
-this sample application to inject errors.
-
-Errata: Itanium 2 Processors Specification Update lists some errata against
-the pal_mc_error_inject PAL procedure. The following err.conf has been tested
-on latest Montecito PAL.
-
-err.conf::
-
- #This is configuration file for err_inject_tool.
- #The format of the each line is:
- #cpu, loop, interval, err_type_info, err_struct_info, err_data_buffer
- #where
- # cpu: logical cpu number the error will be inject in.
- # loop: times the error will be injected.
- # interval: In second. every so often one error is injected.
- # err_type_info, err_struct_info: PAL parameters.
- #
- #Note: All values are hex w/o or w/ 0x prefix.
-
-
- #On cpu2, inject only total 0x10 errors, interval 5 seconds
- #corrected, data cache, hier-2, physical addr(assigned by tool code).
- #working on Montecito latest PAL.
- 2, 10, 5, 4101, 95
-
- #On cpu4, inject and consume total 0x10 errors, interval 5 seconds
- #corrected, data cache, hier-2, physical addr(assigned by tool code).
- #working on Montecito latest PAL.
- 4, 10, 5, 4109, 95
-
- #On cpu15, inject and consume total 0x10 errors, interval 5 seconds
- #recoverable, DTR0, hier-2.
- #working on Montecito latest PAL.
- 0xf, 0x10, 5, 4249, 15
-
-The sample application source code:
-
-err_injection_tool.c::
-
- /*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- * NON INFRINGEMENT. See the GNU General Public License for more
- * details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Copyright (C) 2006 Intel Co
- * Fenghua Yu <fenghua.yu@intel.com>
- *
- */
- #include <sys/types.h>
- #include <sys/stat.h>
- #include <fcntl.h>
- #include <stdio.h>
- #include <sched.h>
- #include <unistd.h>
- #include <stdlib.h>
- #include <stdarg.h>
- #include <string.h>
- #include <errno.h>
- #include <time.h>
- #include <sys/ipc.h>
- #include <sys/sem.h>
- #include <sys/wait.h>
- #include <sys/mman.h>
- #include <sys/shm.h>
-
- #define MAX_FN_SIZE 256
- #define MAX_BUF_SIZE 256
- #define DATA_BUF_SIZE 256
- #define NR_CPUS 512
- #define MAX_TASK_NUM 2048
- #define MIN_INTERVAL 5 // seconds
- #define ERR_DATA_BUFFER_SIZE 3 // Three 8-byte.
- #define PARA_FIELD_NUM 5
- #define MASK_SIZE (NR_CPUS/64)
- #define PATH_FORMAT "/sys/devices/system/cpu/cpu%d/err_inject/"
-
- int sched_setaffinity(pid_t pid, unsigned int len, unsigned long *mask);
-
- int verbose;
- #define vbprintf if (verbose) printf
-
- int log_info(int cpu, const char *fmt, ...)
- {
- FILE *log;
- char fn[MAX_FN_SIZE];
- char buf[MAX_BUF_SIZE];
- va_list args;
-
- sprintf(fn, "%d.log", cpu);
- log=fopen(fn, "a+");
- if (log==NULL) {
- perror("Error open:");
- return -1;
- }
-
- va_start(args, fmt);
- vprintf(fmt, args);
- memset(buf, 0, MAX_BUF_SIZE);
- vsprintf(buf, fmt, args);
- va_end(args);
-
- fwrite(buf, sizeof(buf), 1, log);
- fclose(log);
-
- return 0;
- }
-
- typedef unsigned long u64;
- typedef unsigned int u32;
-
- typedef union err_type_info_u {
- struct {
- u64 mode : 3, /* 0-2 */
- err_inj : 3, /* 3-5 */
- err_sev : 2, /* 6-7 */
- err_struct : 5, /* 8-12 */
- struct_hier : 3, /* 13-15 */
- reserved : 48; /* 16-63 */
- } err_type_info_u;
- u64 err_type_info;
- } err_type_info_t;
-
- typedef union err_struct_info_u {
- struct {
- u64 siv : 1, /* 0 */
- c_t : 2, /* 1-2 */
- cl_p : 3, /* 3-5 */
- cl_id : 3, /* 6-8 */
- cl_dp : 1, /* 9 */
- reserved1 : 22, /* 10-31 */
- tiv : 1, /* 32 */
- trigger : 4, /* 33-36 */
- trigger_pl : 3, /* 37-39 */
- reserved2 : 24; /* 40-63 */
- } err_struct_info_cache;
- struct {
- u64 siv : 1, /* 0 */
- tt : 2, /* 1-2 */
- tc_tr : 2, /* 3-4 */
- tr_slot : 8, /* 5-12 */
- reserved1 : 19, /* 13-31 */
- tiv : 1, /* 32 */
- trigger : 4, /* 33-36 */
- trigger_pl : 3, /* 37-39 */
- reserved2 : 24; /* 40-63 */
- } err_struct_info_tlb;
- struct {
- u64 siv : 1, /* 0 */
- regfile_id : 4, /* 1-4 */
- reg_num : 7, /* 5-11 */
- reserved1 : 20, /* 12-31 */
- tiv : 1, /* 32 */
- trigger : 4, /* 33-36 */
- trigger_pl : 3, /* 37-39 */
- reserved2 : 24; /* 40-63 */
- } err_struct_info_register;
- struct {
- u64 reserved;
- } err_struct_info_bus_processor_interconnect;
- u64 err_struct_info;
- } err_struct_info_t;
-
- typedef union err_data_buffer_u {
- struct {
- u64 trigger_addr; /* 0-63 */
- u64 inj_addr; /* 64-127 */
- u64 way : 5, /* 128-132 */
- index : 20, /* 133-152 */
- : 39; /* 153-191 */
- } err_data_buffer_cache;
- struct {
- u64 trigger_addr; /* 0-63 */
- u64 inj_addr; /* 64-127 */
- u64 way : 5, /* 128-132 */
- index : 20, /* 133-152 */
- reserved : 39; /* 153-191 */
- } err_data_buffer_tlb;
- struct {
- u64 trigger_addr; /* 0-63 */
- } err_data_buffer_register;
- struct {
- u64 reserved; /* 0-63 */
- } err_data_buffer_bus_processor_interconnect;
- u64 err_data_buffer[ERR_DATA_BUFFER_SIZE];
- } err_data_buffer_t;
-
- typedef union capabilities_u {
- struct {
- u64 i : 1,
- d : 1,
- rv : 1,
- tag : 1,
- data : 1,
- mesi : 1,
- dp : 1,
- reserved1 : 3,
- pa : 1,
- va : 1,
- wi : 1,
- reserved2 : 20,
- trigger : 1,
- trigger_pl : 1,
- reserved3 : 30;
- } capabilities_cache;
- struct {
- u64 d : 1,
- i : 1,
- rv : 1,
- tc : 1,
- tr : 1,
- reserved1 : 27,
- trigger : 1,
- trigger_pl : 1,
- reserved2 : 30;
- } capabilities_tlb;
- struct {
- u64 gr_b0 : 1,
- gr_b1 : 1,
- fr : 1,
- br : 1,
- pr : 1,
- ar : 1,
- cr : 1,
- rr : 1,
- pkr : 1,
- dbr : 1,
- ibr : 1,
- pmc : 1,
- pmd : 1,
- reserved1 : 3,
- regnum : 1,
- reserved2 : 15,
- trigger : 1,
- trigger_pl : 1,
- reserved3 : 30;
- } capabilities_register;
- struct {
- u64 reserved;
- } capabilities_bus_processor_interconnect;
- } capabilities_t;
-
- typedef struct resources_s {
- u64 ibr0 : 1,
- ibr2 : 1,
- ibr4 : 1,
- ibr6 : 1,
- dbr0 : 1,
- dbr2 : 1,
- dbr4 : 1,
- dbr6 : 1,
- reserved : 48;
- } resources_t;
-
-
- long get_page_size(void)
- {
- long page_size=sysconf(_SC_PAGESIZE);
- return page_size;
- }
-
- #define PAGE_SIZE (get_page_size()==-1?0x4000:get_page_size())
- #define SHM_SIZE (2*PAGE_SIZE*NR_CPUS)
- #define SHM_VA 0x2000000100000000
-
- int shmid;
- void *shmaddr;
-
- int create_shm(void)
- {
- key_t key;
- char fn[MAX_FN_SIZE];
-
- /* cpu0 is always existing */
- sprintf(fn, PATH_FORMAT, 0);
- if ((key = ftok(fn, 's')) == -1) {
- perror("ftok");
- return -1;
- }
-
- shmid = shmget(key, SHM_SIZE, 0644 | IPC_CREAT);
- if (shmid == -1) {
- if (errno==EEXIST) {
- shmid = shmget(key, SHM_SIZE, 0);
- if (shmid == -1) {
- perror("shmget");
- return -1;
- }
- }
- else {
- perror("shmget");
- return -1;
- }
- }
- vbprintf("shmid=%d", shmid);
-
- /* connect to the segment: */
- shmaddr = shmat(shmid, (void *)SHM_VA, 0);
- if (shmaddr == (void*)-1) {
- perror("shmat");
- return -1;
- }
-
- memset(shmaddr, 0, SHM_SIZE);
- mlock(shmaddr, SHM_SIZE);
-
- return 0;
- }
-
- int free_shm()
- {
- munlock(shmaddr, SHM_SIZE);
- shmdt(shmaddr);
- semctl(shmid, 0, IPC_RMID);
-
- return 0;
- }
-
- #ifdef _SEM_SEMUN_UNDEFINED
- union semun
- {
- int val;
- struct semid_ds *buf;
- unsigned short int *array;
- struct seminfo *__buf;
- };
- #endif
-
- u32 mode=1; /* 1: physical mode; 2: virtual mode. */
- int one_lock=1;
- key_t key[NR_CPUS];
- int semid[NR_CPUS];
-
- int create_sem(int cpu)
- {
- union semun arg;
- char fn[MAX_FN_SIZE];
- int sid;
-
- sprintf(fn, PATH_FORMAT, cpu);
- sprintf(fn, "%s/%s", fn, "err_type_info");
- if ((key[cpu] = ftok(fn, 'e')) == -1) {
- perror("ftok");
- return -1;
- }
-
- if (semid[cpu]!=0)
- return 0;
-
- /* clear old semaphore */
- if ((sid = semget(key[cpu], 1, 0)) != -1)
- semctl(sid, 0, IPC_RMID);
-
- /* get one semaphore */
- if ((semid[cpu] = semget(key[cpu], 1, IPC_CREAT | IPC_EXCL)) == -1) {
- perror("semget");
- printf("Please remove semaphore with key=0x%lx, then run the tool.\n",
- (u64)key[cpu]);
- return -1;
- }
-
- vbprintf("semid[%d]=0x%lx, key[%d]=%lx\n",cpu,(u64)semid[cpu],cpu,
- (u64)key[cpu]);
- /* initialize the semaphore to 1: */
- arg.val = 1;
- if (semctl(semid[cpu], 0, SETVAL, arg) == -1) {
- perror("semctl");
- return -1;
- }
-
- return 0;
- }
-
- static int lock(int cpu)
- {
- struct sembuf lock;
-
- lock.sem_num = cpu;
- lock.sem_op = 1;
- semop(semid[cpu], &lock, 1);
-
- return 0;
- }
-
- static int unlock(int cpu)
- {
- struct sembuf unlock;
-
- unlock.sem_num = cpu;
- unlock.sem_op = -1;
- semop(semid[cpu], &unlock, 1);
-
- return 0;
- }
-
- void free_sem(int cpu)
- {
- semctl(semid[cpu], 0, IPC_RMID);
- }
-
- int wr_multi(char *fn, unsigned long *data, int size)
- {
- int fd;
- char buf[MAX_BUF_SIZE];
- int ret;
-
- if (size==1)
- sprintf(buf, "%lx", *data);
- else if (size==3)
- sprintf(buf, "%lx,%lx,%lx", data[0], data[1], data[2]);
- else {
- fprintf(stderr,"write to file with wrong size!\n");
- return -1;
- }
-
- fd=open(fn, O_RDWR);
- if (!fd) {
- perror("Error:");
- return -1;
- }
- ret=write(fd, buf, sizeof(buf));
- close(fd);
- return ret;
- }
-
- int wr(char *fn, unsigned long data)
- {
- return wr_multi(fn, &data, 1);
- }
-
- int rd(char *fn, unsigned long *data)
- {
- int fd;
- char buf[MAX_BUF_SIZE];
-
- fd=open(fn, O_RDONLY);
- if (fd<0) {
- perror("Error:");
- return -1;
- }
- read(fd, buf, MAX_BUF_SIZE);
- *data=strtoul(buf, NULL, 16);
- close(fd);
- return 0;
- }
-
- int rd_status(char *path, int *status)
- {
- char fn[MAX_FN_SIZE];
- sprintf(fn, "%s/status", path);
- if (rd(fn, (u64*)status)<0) {
- perror("status reading error.\n");
- return -1;
- }
-
- return 0;
- }
-
- int rd_capabilities(char *path, u64 *capabilities)
- {
- char fn[MAX_FN_SIZE];
- sprintf(fn, "%s/capabilities", path);
- if (rd(fn, capabilities)<0) {
- perror("capabilities reading error.\n");
- return -1;
- }
-
- return 0;
- }
-
- int rd_all(char *path)
- {
- unsigned long err_type_info, err_struct_info, err_data_buffer;
- int status;
- unsigned long capabilities, resources;
- char fn[MAX_FN_SIZE];
-
- sprintf(fn, "%s/err_type_info", path);
- if (rd(fn, &err_type_info)<0) {
- perror("err_type_info reading error.\n");
- return -1;
- }
- printf("err_type_info=%lx\n", err_type_info);
-
- sprintf(fn, "%s/err_struct_info", path);
- if (rd(fn, &err_struct_info)<0) {
- perror("err_struct_info reading error.\n");
- return -1;
- }
- printf("err_struct_info=%lx\n", err_struct_info);
-
- sprintf(fn, "%s/err_data_buffer", path);
- if (rd(fn, &err_data_buffer)<0) {
- perror("err_data_buffer reading error.\n");
- return -1;
- }
- printf("err_data_buffer=%lx\n", err_data_buffer);
-
- sprintf(fn, "%s/status", path);
- if (rd("status", (u64*)&status)<0) {
- perror("status reading error.\n");
- return -1;
- }
- printf("status=%d\n", status);
-
- sprintf(fn, "%s/capabilities", path);
- if (rd(fn,&capabilities)<0) {
- perror("capabilities reading error.\n");
- return -1;
- }
- printf("capabilities=%lx\n", capabilities);
-
- sprintf(fn, "%s/resources", path);
- if (rd(fn, &resources)<0) {
- perror("resources reading error.\n");
- return -1;
- }
- printf("resources=%lx\n", resources);
-
- return 0;
- }
-
- int query_capabilities(char *path, err_type_info_t err_type_info,
- u64 *capabilities)
- {
- char fn[MAX_FN_SIZE];
- err_struct_info_t err_struct_info;
- err_data_buffer_t err_data_buffer;
-
- err_struct_info.err_struct_info=0;
- memset(err_data_buffer.err_data_buffer, -1, ERR_DATA_BUFFER_SIZE*8);
-
- sprintf(fn, "%s/err_type_info", path);
- wr(fn, err_type_info.err_type_info);
- sprintf(fn, "%s/err_struct_info", path);
- wr(fn, 0x0);
- sprintf(fn, "%s/err_data_buffer", path);
- wr_multi(fn, err_data_buffer.err_data_buffer, ERR_DATA_BUFFER_SIZE);
-
- // Fire pal_mc_error_inject procedure.
- sprintf(fn, "%s/call_start", path);
- wr(fn, mode);
-
- if (rd_capabilities(path, capabilities)<0)
- return -1;
-
- return 0;
- }
-
- int query_all_capabilities()
- {
- int status;
- err_type_info_t err_type_info;
- int err_sev, err_struct, struct_hier;
- int cap=0;
- u64 capabilities;
- char path[MAX_FN_SIZE];
-
- err_type_info.err_type_info=0; // Initial
- err_type_info.err_type_info_u.mode=0; // Query mode;
- err_type_info.err_type_info_u.err_inj=0;
-
- printf("All capabilities implemented in pal_mc_error_inject:\n");
- sprintf(path, PATH_FORMAT ,0);
- for (err_sev=0;err_sev<3;err_sev++)
- for (err_struct=0;err_struct<5;err_struct++)
- for (struct_hier=0;struct_hier<5;struct_hier++)
- {
- status=-1;
- capabilities=0;
- err_type_info.err_type_info_u.err_sev=err_sev;
- err_type_info.err_type_info_u.err_struct=err_struct;
- err_type_info.err_type_info_u.struct_hier=struct_hier;
-
- if (query_capabilities(path, err_type_info, &capabilities)<0)
- continue;
-
- if (rd_status(path, &status)<0)
- continue;
-
- if (status==0) {
- cap=1;
- printf("For err_sev=%d, err_struct=%d, struct_hier=%d: ",
- err_sev, err_struct, struct_hier);
- printf("capabilities 0x%lx\n", capabilities);
- }
- }
- if (!cap) {
- printf("No capabilities supported.\n");
- return 0;
- }
-
- return 0;
- }
-
- int err_inject(int cpu, char *path, err_type_info_t err_type_info,
- err_struct_info_t err_struct_info,
- err_data_buffer_t err_data_buffer)
- {
- int status;
- char fn[MAX_FN_SIZE];
-
- log_info(cpu, "err_type_info=%lx, err_struct_info=%lx, ",
- err_type_info.err_type_info,
- err_struct_info.err_struct_info);
- log_info(cpu,"err_data_buffer=[%lx,%lx,%lx]\n",
- err_data_buffer.err_data_buffer[0],
- err_data_buffer.err_data_buffer[1],
- err_data_buffer.err_data_buffer[2]);
- sprintf(fn, "%s/err_type_info", path);
- wr(fn, err_type_info.err_type_info);
- sprintf(fn, "%s/err_struct_info", path);
- wr(fn, err_struct_info.err_struct_info);
- sprintf(fn, "%s/err_data_buffer", path);
- wr_multi(fn, err_data_buffer.err_data_buffer, ERR_DATA_BUFFER_SIZE);
-
- // Fire pal_mc_error_inject procedure.
- sprintf(fn, "%s/call_start", path);
- wr(fn,mode);
-
- if (rd_status(path, &status)<0) {
- vbprintf("fail: read status\n");
- return -100;
- }
-
- if (status!=0) {
- log_info(cpu, "fail: status=%d\n", status);
- return status;
- }
-
- return status;
- }
-
- static int construct_data_buf(char *path, err_type_info_t err_type_info,
- err_struct_info_t err_struct_info,
- err_data_buffer_t *err_data_buffer,
- void *va1)
- {
- char fn[MAX_FN_SIZE];
- u64 virt_addr=0, phys_addr=0;
-
- vbprintf("va1=%lx\n", (u64)va1);
- memset(&err_data_buffer->err_data_buffer_cache, 0, ERR_DATA_BUFFER_SIZE*8);
-
- switch (err_type_info.err_type_info_u.err_struct) {
- case 1: // Cache
- switch (err_struct_info.err_struct_info_cache.cl_id) {
- case 1: //Virtual addr
- err_data_buffer->err_data_buffer_cache.inj_addr=(u64)va1;
- break;
- case 2: //Phys addr
- sprintf(fn, "%s/virtual_to_phys", path);
- virt_addr=(u64)va1;
- if (wr(fn,virt_addr)<0)
- return -1;
- rd(fn, &phys_addr);
- err_data_buffer->err_data_buffer_cache.inj_addr=phys_addr;
- break;
- default:
- printf("Not supported cl_id\n");
- break;
- }
- break;
- case 2: // TLB
- break;
- case 3: // Register file
- break;
- case 4: // Bus/system interconnect
- default:
- printf("Not supported err_struct\n");
- break;
- }
-
- return 0;
- }
-
- typedef struct {
- u64 cpu;
- u64 loop;
- u64 interval;
- u64 err_type_info;
- u64 err_struct_info;
- u64 err_data_buffer[ERR_DATA_BUFFER_SIZE];
- } parameters_t;
-
- parameters_t line_para;
- int para;
-
- static int empty_data_buffer(u64 *err_data_buffer)
- {
- int empty=1;
- int i;
-
- for (i=0;i<ERR_DATA_BUFFER_SIZE; i++)
- if (err_data_buffer[i]!=-1)
- empty=0;
-
- return empty;
- }
-
- int err_inj()
- {
- err_type_info_t err_type_info;
- err_struct_info_t err_struct_info;
- err_data_buffer_t err_data_buffer;
- int count;
- FILE *fp;
- unsigned long cpu, loop, interval, err_type_info_conf, err_struct_info_conf;
- u64 err_data_buffer_conf[ERR_DATA_BUFFER_SIZE];
- int num;
- int i;
- char path[MAX_FN_SIZE];
- parameters_t parameters[MAX_TASK_NUM]={};
- pid_t child_pid[MAX_TASK_NUM];
- time_t current_time;
- int status;
-
- if (!para) {
- fp=fopen("err.conf", "r");
- if (fp==NULL) {
- perror("Error open err.conf");
- return -1;
- }
-
- num=0;
- while (!feof(fp)) {
- char buf[256];
- memset(buf,0,256);
- fgets(buf, 256, fp);
- count=sscanf(buf, "%lx, %lx, %lx, %lx, %lx, %lx, %lx, %lx\n",
- &cpu, &loop, &interval,&err_type_info_conf,
- &err_struct_info_conf,
- &err_data_buffer_conf[0],
- &err_data_buffer_conf[1],
- &err_data_buffer_conf[2]);
- if (count!=PARA_FIELD_NUM+3) {
- err_data_buffer_conf[0]=-1;
- err_data_buffer_conf[1]=-1;
- err_data_buffer_conf[2]=-1;
- count=sscanf(buf, "%lx, %lx, %lx, %lx, %lx\n",
- &cpu, &loop, &interval,&err_type_info_conf,
- &err_struct_info_conf);
- if (count!=PARA_FIELD_NUM)
- continue;
- }
-
- parameters[num].cpu=cpu;
- parameters[num].loop=loop;
- parameters[num].interval= interval>MIN_INTERVAL
- ?interval:MIN_INTERVAL;
- parameters[num].err_type_info=err_type_info_conf;
- parameters[num].err_struct_info=err_struct_info_conf;
- memcpy(parameters[num++].err_data_buffer,
- err_data_buffer_conf,ERR_DATA_BUFFER_SIZE*8) ;
-
- if (num>=MAX_TASK_NUM)
- break;
- }
- }
- else {
- parameters[0].cpu=line_para.cpu;
- parameters[0].loop=line_para.loop;
- parameters[0].interval= line_para.interval>MIN_INTERVAL
- ?line_para.interval:MIN_INTERVAL;
- parameters[0].err_type_info=line_para.err_type_info;
- parameters[0].err_struct_info=line_para.err_struct_info;
- memcpy(parameters[0].err_data_buffer,
- line_para.err_data_buffer,ERR_DATA_BUFFER_SIZE*8) ;
-
- num=1;
- }
-
- /* Create semaphore: If one_lock, one semaphore for all processors.
- Otherwise, one semaphore for each processor. */
- if (one_lock) {
- if (create_sem(0)) {
- printf("Can not create semaphore...exit\n");
- free_sem(0);
- return -1;
- }
- }
- else {
- for (i=0;i<num;i++) {
- if (create_sem(parameters[i].cpu)) {
- printf("Can not create semaphore for cpu%d...exit\n",i);
- free_sem(parameters[num].cpu);
- return -1;
- }
- }
- }
-
- /* Create a shm segment which will be used to inject/consume errors on.*/
- if (create_shm()==-1) {
- printf("Error to create shm...exit\n");
- return -1;
- }
-
- for (i=0;i<num;i++) {
- pid_t pid;
-
- current_time=time(NULL);
- log_info(parameters[i].cpu, "\nBegine at %s", ctime(&current_time));
- log_info(parameters[i].cpu, "Configurations:\n");
- log_info(parameters[i].cpu,"On cpu%ld: loop=%lx, interval=%lx(s)",
- parameters[i].cpu,
- parameters[i].loop,
- parameters[i].interval);
- log_info(parameters[i].cpu," err_type_info=%lx,err_struct_info=%lx\n",
- parameters[i].err_type_info,
- parameters[i].err_struct_info);
-
- sprintf(path, PATH_FORMAT, (int)parameters[i].cpu);
- err_type_info.err_type_info=parameters[i].err_type_info;
- err_struct_info.err_struct_info=parameters[i].err_struct_info;
- memcpy(err_data_buffer.err_data_buffer,
- parameters[i].err_data_buffer,
- ERR_DATA_BUFFER_SIZE*8);
-
- pid=fork();
- if (pid==0) {
- unsigned long mask[MASK_SIZE];
- int j, k;
-
- void *va1, *va2;
-
- /* Allocate two memory areas va1 and va2 in shm */
- va1=shmaddr+parameters[i].cpu*PAGE_SIZE;
- va2=shmaddr+parameters[i].cpu*PAGE_SIZE+PAGE_SIZE;
-
- vbprintf("va1=%lx, va2=%lx\n", (u64)va1, (u64)va2);
- memset(va1, 0x1, PAGE_SIZE);
- memset(va2, 0x2, PAGE_SIZE);
-
- if (empty_data_buffer(err_data_buffer.err_data_buffer))
- /* If not specified yet, construct data buffer
- * with va1
- */
- construct_data_buf(path, err_type_info,
- err_struct_info, &err_data_buffer,va1);
-
- for (j=0;j<MASK_SIZE;j++)
- mask[j]=0;
-
- cpu=parameters[i].cpu;
- k = cpu%64;
- j = cpu/64;
- mask[j] = 1UL << k;
-
- if (sched_setaffinity(0, MASK_SIZE*8, mask)==-1) {
- perror("Error sched_setaffinity:");
- return -1;
- }
-
- for (j=0; j<parameters[i].loop; j++) {
- log_info(parameters[i].cpu,"Injection ");
- log_info(parameters[i].cpu,"on cpu%ld: #%d/%ld ",
-
- parameters[i].cpu,j+1, parameters[i].loop);
-
- /* Hold the lock */
- if (one_lock)
- lock(0);
- else
- /* Hold lock on this cpu */
- lock(parameters[i].cpu);
-
- if ((status=err_inject(parameters[i].cpu,
- path, err_type_info,
- err_struct_info, err_data_buffer))
- ==0) {
- /* consume the error for "inject only"*/
- memcpy(va2, va1, PAGE_SIZE);
- memcpy(va1, va2, PAGE_SIZE);
- log_info(parameters[i].cpu,
- "successful\n");
- }
- else {
- log_info(parameters[i].cpu,"fail:");
- log_info(parameters[i].cpu,
- "status=%d\n", status);
- unlock(parameters[i].cpu);
- break;
- }
- if (one_lock)
- /* Release the lock */
- unlock(0);
- /* Release lock on this cpu */
- else
- unlock(parameters[i].cpu);
-
- if (j < parameters[i].loop-1)
- sleep(parameters[i].interval);
- }
- current_time=time(NULL);
- log_info(parameters[i].cpu, "Done at %s", ctime(&current_time));
- return 0;
- }
- else if (pid<0) {
- perror("Error fork:");
- continue;
- }
- child_pid[i]=pid;
- }
- for (i=0;i<num;i++)
- waitpid(child_pid[i], NULL, 0);
-
- if (one_lock)
- free_sem(0);
- else
- for (i=0;i<num;i++)
- free_sem(parameters[i].cpu);
-
- printf("All done.\n");
-
- return 0;
- }
-
- void help()
- {
- printf("err_inject_tool:\n");
- printf("\t-q: query all capabilities. default: off\n");
- printf("\t-m: procedure mode. 1: physical 2: virtual. default: 1\n");
- printf("\t-i: inject errors. default: off\n");
- printf("\t-l: one lock per cpu. default: one lock for all\n");
- printf("\t-e: error parameters:\n");
- printf("\t\tcpu,loop,interval,err_type_info,err_struct_info[,err_data_buffer[0],err_data_buffer[1],err_data_buffer[2]]\n");
- printf("\t\t cpu: logical cpu number the error will be inject in.\n");
- printf("\t\t loop: times the error will be injected.\n");
- printf("\t\t interval: In second. every so often one error is injected.\n");
- printf("\t\t err_type_info, err_struct_info: PAL parameters.\n");
- printf("\t\t err_data_buffer: PAL parameter. Optional. If not present,\n");
- printf("\t\t it's constructed by tool automatically. Be\n");
- printf("\t\t careful to provide err_data_buffer and make\n");
- printf("\t\t sure it's working with the environment.\n");
- printf("\t Note:no space between error parameters.\n");
- printf("\t default: Take error parameters from err.conf instead of command line.\n");
- printf("\t-v: verbose. default: off\n");
- printf("\t-h: help\n\n");
- printf("The tool will take err.conf file as ");
- printf("input to inject single or multiple errors ");
- printf("on one or multiple cpus in parallel.\n");
- }
-
- int main(int argc, char **argv)
- {
- char c;
- int do_err_inj=0;
- int do_query_all=0;
- int count;
- u32 m;
-
- /* Default one lock for all cpu's */
- one_lock=1;
- while ((c = getopt(argc, argv, "m:iqvhle:")) != EOF)
- switch (c) {
- case 'm': /* Procedure mode. 1: phys 2: virt */
- count=sscanf(optarg, "%x", &m);
- if (count!=1 || (m!=1 && m!=2)) {
- printf("Wrong mode number.\n");
- help();
- return -1;
- }
- mode=m;
- break;
- case 'i': /* Inject errors */
- do_err_inj=1;
- break;
- case 'q': /* Query */
- do_query_all=1;
- break;
- case 'v': /* Verbose */
- verbose=1;
- break;
- case 'l': /* One lock per cpu */
- one_lock=0;
- break;
- case 'e': /* error arguments */
- /* Take parameters:
- * #cpu, loop, interval, err_type_info, err_struct_info[, err_data_buffer]
- * err_data_buffer is optional. Recommend not to specify
- * err_data_buffer. Better to use tool to generate it.
- */
- count=sscanf(optarg,
- "%lx, %lx, %lx, %lx, %lx, %lx, %lx, %lx\n",
- &line_para.cpu,
- &line_para.loop,
- &line_para.interval,
- &line_para.err_type_info,
- &line_para.err_struct_info,
- &line_para.err_data_buffer[0],
- &line_para.err_data_buffer[1],
- &line_para.err_data_buffer[2]);
- if (count!=PARA_FIELD_NUM+3) {
- line_para.err_data_buffer[0]=-1,
- line_para.err_data_buffer[1]=-1,
- line_para.err_data_buffer[2]=-1;
- count=sscanf(optarg, "%lx, %lx, %lx, %lx, %lx\n",
- &line_para.cpu,
- &line_para.loop,
- &line_para.interval,
- &line_para.err_type_info,
- &line_para.err_struct_info);
- if (count!=PARA_FIELD_NUM) {
- printf("Wrong error arguments.\n");
- help();
- return -1;
- }
- }
- para=1;
- break;
- continue;
- break;
- case 'h':
- help();
- return 0;
- default:
- break;
- }
-
- if (do_query_all)
- query_all_capabilities();
- if (do_err_inj)
- err_inj();
-
- if (!do_query_all && !do_err_inj)
- help();
-
- return 0;
- }
diff --git a/Documentation/arch/ia64/features.rst b/Documentation/arch/ia64/features.rst
deleted file mode 100644
index d7226fdcf5f8..000000000000
--- a/Documentation/arch/ia64/features.rst
+++ /dev/null
@@ -1,3 +0,0 @@
-.. SPDX-License-Identifier: GPL-2.0
-
-.. kernel-feat:: $srctree/Documentation/features ia64
diff --git a/Documentation/arch/ia64/fsys.rst b/Documentation/arch/ia64/fsys.rst
deleted file mode 100644
index a702d2cc94b6..000000000000
--- a/Documentation/arch/ia64/fsys.rst
+++ /dev/null
@@ -1,303 +0,0 @@
-===================================
-Light-weight System Calls for IA-64
-===================================
-
- Started: 13-Jan-2003
-
- Last update: 27-Sep-2003
-
- David Mosberger-Tang
- <davidm@hpl.hp.com>
-
-Using the "epc" instruction effectively introduces a new mode of
-execution to the ia64 linux kernel. We call this mode the
-"fsys-mode". To recap, the normal states of execution are:
-
- - kernel mode:
- Both the register stack and the memory stack have been
- switched over to kernel memory. The user-level state is saved
- in a pt-regs structure at the top of the kernel memory stack.
-
- - user mode:
- Both the register stack and the kernel stack are in
- user memory. The user-level state is contained in the
- CPU registers.
-
- - bank 0 interruption-handling mode:
- This is the non-interruptible state which all
- interruption-handlers start execution in. The user-level
- state remains in the CPU registers and some kernel state may
- be stored in bank 0 of registers r16-r31.
-
-In contrast, fsys-mode has the following special properties:
-
- - execution is at privilege level 0 (most-privileged)
-
- - CPU registers may contain a mixture of user-level and kernel-level
- state (it is the responsibility of the kernel to ensure that no
- security-sensitive kernel-level state is leaked back to
- user-level)
-
- - execution is interruptible and preemptible (an fsys-mode handler
- can disable interrupts and avoid all other interruption-sources
- to avoid preemption)
-
- - neither the memory-stack nor the register-stack can be trusted while
- in fsys-mode (they point to the user-level stacks, which may
- be invalid, or completely bogus addresses)
-
-In summary, fsys-mode is much more similar to running in user-mode
-than it is to running in kernel-mode. Of course, given that the
-privilege level is at level 0, this means that fsys-mode requires some
-care (see below).
-
-
-How to tell fsys-mode
-=====================
-
-Linux operates in fsys-mode when (a) the privilege level is 0 (most
-privileged) and (b) the stacks have NOT been switched to kernel memory
-yet. For convenience, the header file <asm-ia64/ptrace.h> provides
-three macros::
-
- user_mode(regs)
- user_stack(task,regs)
- fsys_mode(task,regs)
-
-The "regs" argument is a pointer to a pt_regs structure. The "task"
-argument is a pointer to the task structure to which the "regs"
-pointer belongs to. user_mode() returns TRUE if the CPU state pointed
-to by "regs" was executing in user mode (privilege level 3).
-user_stack() returns TRUE if the state pointed to by "regs" was
-executing on the user-level stack(s). Finally, fsys_mode() returns
-TRUE if the CPU state pointed to by "regs" was executing in fsys-mode.
-The fsys_mode() macro is equivalent to the expression::
-
- !user_mode(regs) && user_stack(task,regs)
-
-How to write an fsyscall handler
-================================
-
-The file arch/ia64/kernel/fsys.S contains a table of fsyscall-handlers
-(fsyscall_table). This table contains one entry for each system call.
-By default, a system call is handled by fsys_fallback_syscall(). This
-routine takes care of entering (full) kernel mode and calling the
-normal Linux system call handler. For performance-critical system
-calls, it is possible to write a hand-tuned fsyscall_handler. For
-example, fsys.S contains fsys_getpid(), which is a hand-tuned version
-of the getpid() system call.
-
-The entry and exit-state of an fsyscall handler is as follows:
-
-Machine state on entry to fsyscall handler
-------------------------------------------
-
- ========= ===============================================================
- r10 0
- r11 saved ar.pfs (a user-level value)
- r15 system call number
- r16 "current" task pointer (in normal kernel-mode, this is in r13)
- r32-r39 system call arguments
- b6 return address (a user-level value)
- ar.pfs previous frame-state (a user-level value)
- PSR.be cleared to zero (i.e., little-endian byte order is in effect)
- - all other registers may contain values passed in from user-mode
- ========= ===============================================================
-
-Required machine state on exit to fsyscall handler
---------------------------------------------------
-
- ========= ===========================================================
- r11 saved ar.pfs (as passed into the fsyscall handler)
- r15 system call number (as passed into the fsyscall handler)
- r32-r39 system call arguments (as passed into the fsyscall handler)
- b6 return address (as passed into the fsyscall handler)
- ar.pfs previous frame-state (as passed into the fsyscall handler)
- ========= ===========================================================
-
-Fsyscall handlers can execute with very little overhead, but with that
-speed comes a set of restrictions:
-
- * Fsyscall-handlers MUST check for any pending work in the flags
- member of the thread-info structure and if any of the
- TIF_ALLWORK_MASK flags are set, the handler needs to fall back on
- doing a full system call (by calling fsys_fallback_syscall).
-
- * Fsyscall-handlers MUST preserve incoming arguments (r32-r39, r11,
- r15, b6, and ar.pfs) because they will be needed in case of a
- system call restart. Of course, all "preserved" registers also
- must be preserved, in accordance to the normal calling conventions.
-
- * Fsyscall-handlers MUST check argument registers for containing a
- NaT value before using them in any way that could trigger a
- NaT-consumption fault. If a system call argument is found to
- contain a NaT value, an fsyscall-handler may return immediately
- with r8=EINVAL, r10=-1.
-
- * Fsyscall-handlers MUST NOT use the "alloc" instruction or perform
- any other operation that would trigger mandatory RSE
- (register-stack engine) traffic.
-
- * Fsyscall-handlers MUST NOT write to any stacked registers because
- it is not safe to assume that user-level called a handler with the
- proper number of arguments.
-
- * Fsyscall-handlers need to be careful when accessing per-CPU variables:
- unless proper safe-guards are taken (e.g., interruptions are avoided),
- execution may be pre-empted and resumed on another CPU at any given
- time.
-
- * Fsyscall-handlers must be careful not to leak sensitive kernel'
- information back to user-level. In particular, before returning to
- user-level, care needs to be taken to clear any scratch registers
- that could contain sensitive information (note that the current
- task pointer is not considered sensitive: it's already exposed
- through ar.k6).
-
- * Fsyscall-handlers MUST NOT access user-memory without first
- validating access-permission (this can be done typically via
- probe.r.fault and/or probe.w.fault) and without guarding against
- memory access exceptions (this can be done with the EX() macros
- defined by asmmacro.h).
-
-The above restrictions may seem draconian, but remember that it's
-possible to trade off some of the restrictions by paying a slightly
-higher overhead. For example, if an fsyscall-handler could benefit
-from the shadow register bank, it could temporarily disable PSR.i and
-PSR.ic, switch to bank 0 (bsw.0) and then use the shadow registers as
-needed. In other words, following the above rules yields extremely
-fast system call execution (while fully preserving system call
-semantics), but there is also a lot of flexibility in handling more
-complicated cases.
-
-Signal handling
-===============
-
-The delivery of (asynchronous) signals must be delayed until fsys-mode
-is exited. This is accomplished with the help of the lower-privilege
-transfer trap: arch/ia64/kernel/process.c:do_notify_resume_user()
-checks whether the interrupted task was in fsys-mode and, if so, sets
-PSR.lp and returns immediately. When fsys-mode is exited via the
-"br.ret" instruction that lowers the privilege level, a trap will
-occur. The trap handler clears PSR.lp again and returns immediately.
-The kernel exit path then checks for and delivers any pending signals.
-
-PSR Handling
-============
-
-The "epc" instruction doesn't change the contents of PSR at all. This
-is in contrast to a regular interruption, which clears almost all
-bits. Because of that, some care needs to be taken to ensure things
-work as expected. The following discussion describes how each PSR bit
-is handled.
-
-======= =======================================================================
-PSR.be Cleared when entering fsys-mode. A srlz.d instruction is used
- to ensure the CPU is in little-endian mode before the first
- load/store instruction is executed. PSR.be is normally NOT
- restored upon return from an fsys-mode handler. In other
- words, user-level code must not rely on PSR.be being preserved
- across a system call.
-PSR.up Unchanged.
-PSR.ac Unchanged.
-PSR.mfl Unchanged. Note: fsys-mode handlers must not write-registers!
-PSR.mfh Unchanged. Note: fsys-mode handlers must not write-registers!
-PSR.ic Unchanged. Note: fsys-mode handlers can clear the bit, if needed.
-PSR.i Unchanged. Note: fsys-mode handlers can clear the bit, if needed.
-PSR.pk Unchanged.
-PSR.dt Unchanged.
-PSR.dfl Unchanged. Note: fsys-mode handlers must not write-registers!
-PSR.dfh Unchanged. Note: fsys-mode handlers must not write-registers!
-PSR.sp Unchanged.
-PSR.pp Unchanged.
-PSR.di Unchanged.
-PSR.si Unchanged.
-PSR.db Unchanged. The kernel prevents user-level from setting a hardware
- breakpoint that triggers at any privilege level other than
- 3 (user-mode).
-PSR.lp Unchanged.
-PSR.tb Lazy redirect. If a taken-branch trap occurs while in
- fsys-mode, the trap-handler modifies the saved machine state
- such that execution resumes in the gate page at
- syscall_via_break(), with privilege level 3. Note: the
- taken branch would occur on the branch invoking the
- fsyscall-handler, at which point, by definition, a syscall
- restart is still safe. If the system call number is invalid,
- the fsys-mode handler will return directly to user-level. This
- return will trigger a taken-branch trap, but since the trap is
- taken _after_ restoring the privilege level, the CPU has already
- left fsys-mode, so no special treatment is needed.
-PSR.rt Unchanged.
-PSR.cpl Cleared to 0.
-PSR.is Unchanged (guaranteed to be 0 on entry to the gate page).
-PSR.mc Unchanged.
-PSR.it Unchanged (guaranteed to be 1).
-PSR.id Unchanged. Note: the ia64 linux kernel never sets this bit.
-PSR.da Unchanged. Note: the ia64 linux kernel never sets this bit.
-PSR.dd Unchanged. Note: the ia64 linux kernel never sets this bit.
-PSR.ss Lazy redirect. If set, "epc" will cause a Single Step Trap to
- be taken. The trap handler then modifies the saved machine
- state such that execution resumes in the gate page at
- syscall_via_break(), with privilege level 3.
-PSR.ri Unchanged.
-PSR.ed Unchanged. Note: This bit could only have an effect if an fsys-mode
- handler performed a speculative load that gets NaTted. If so, this
- would be the normal & expected behavior, so no special treatment is
- needed.
-PSR.bn Unchanged. Note: fsys-mode handlers may clear the bit, if needed.
- Doing so requires clearing PSR.i and PSR.ic as well.
-PSR.ia Unchanged. Note: the ia64 linux kernel never sets this bit.
-======= =======================================================================
-
-Using fast system calls
-=======================
-
-To use fast system calls, userspace applications need simply call
-__kernel_syscall_via_epc(). For example
-
--- example fgettimeofday() call --
-
--- fgettimeofday.S --
-
-::
-
- #include <asm/asmmacro.h>
-
- GLOBAL_ENTRY(fgettimeofday)
- .prologue
- .save ar.pfs, r11
- mov r11 = ar.pfs
- .body
-
- mov r2 = 0xa000000000020660;; // gate address
- // found by inspection of System.map for the
- // __kernel_syscall_via_epc() function. See
- // below for how to do this for real.
-
- mov b7 = r2
- mov r15 = 1087 // gettimeofday syscall
- ;;
- br.call.sptk.many b6 = b7
- ;;
-
- .restore sp
-
- mov ar.pfs = r11
- br.ret.sptk.many rp;; // return to caller
- END(fgettimeofday)
-
--- end fgettimeofday.S --
-
-In reality, getting the gate address is accomplished by two extra
-values passed via the ELF auxiliary vector (include/asm-ia64/elf.h)
-
- * AT_SYSINFO : is the address of __kernel_syscall_via_epc()
- * AT_SYSINFO_EHDR : is the address of the kernel gate ELF DSO
-
-The ELF DSO is a pre-linked library that is mapped in by the kernel at
-the gate page. It is a proper ELF shared object so, with a dynamic
-loader that recognises the library, you should be able to make calls to
-the exported functions within it as with any other shared library.
-AT_SYSINFO points into the kernel DSO at the
-__kernel_syscall_via_epc() function for historical reasons (it was
-used before the kernel DSO) and as a convenience.
diff --git a/Documentation/arch/ia64/ia64.rst b/Documentation/arch/ia64/ia64.rst
deleted file mode 100644
index b725019a9492..000000000000
--- a/Documentation/arch/ia64/ia64.rst
+++ /dev/null
@@ -1,49 +0,0 @@
-===========================================
-Linux kernel release for the IA-64 Platform
-===========================================
-
- These are the release notes for Linux since version 2.4 for IA-64
- platform. This document provides information specific to IA-64
- ONLY, to get additional information about the Linux kernel also
- read the original Linux README provided with the kernel.
-
-Installing the Kernel
-=====================
-
- - IA-64 kernel installation is the same as the other platforms, see
- original README for details.
-
-
-Software Requirements
-=====================
-
- Compiling and running this kernel requires an IA-64 compliant GCC
- compiler. And various software packages also compiled with an
- IA-64 compliant GCC compiler.
-
-
-Configuring the Kernel
-======================
-
- Configuration is the same, see original README for details.
-
-
-Compiling the Kernel:
-
- - Compiling this kernel doesn't differ from other platform so read
- the original README for details BUT make sure you have an IA-64
- compliant GCC compiler.
-
-IA-64 Specifics
-===============
-
- - General issues:
-
- * Hardly any performance tuning has been done. Obvious targets
- include the library routines (IP checksum, etc.). Less
- obvious targets include making sure we don't flush the TLB
- needlessly, etc.
-
- * SMP locks cleanup/optimization
-
- * IA32 support. Currently experimental. It mostly works.
diff --git a/Documentation/arch/ia64/index.rst b/Documentation/arch/ia64/index.rst
deleted file mode 100644
index 761f2154dfa2..000000000000
--- a/Documentation/arch/ia64/index.rst
+++ /dev/null
@@ -1,19 +0,0 @@
-.. SPDX-License-Identifier: GPL-2.0
-
-==================
-IA-64 Architecture
-==================
-
-.. toctree::
- :maxdepth: 1
-
- ia64
- aliasing
- efirtc
- err_inject
- fsys
- irq-redir
- mca
- serial
-
- features
diff --git a/Documentation/arch/ia64/irq-redir.rst b/Documentation/arch/ia64/irq-redir.rst
deleted file mode 100644
index 6bbbbe4f73ef..000000000000
--- a/Documentation/arch/ia64/irq-redir.rst
+++ /dev/null
@@ -1,80 +0,0 @@
-==============================
-IRQ affinity on IA64 platforms
-==============================
-
-07.01.2002, Erich Focht <efocht@ess.nec.de>
-
-
-By writing to /proc/irq/IRQ#/smp_affinity the interrupt routing can be
-controlled. The behavior on IA64 platforms is slightly different from
-that described in Documentation/core-api/irq/irq-affinity.rst for i386 systems.
-
-Because of the usage of SAPIC mode and physical destination mode the
-IRQ target is one particular CPU and cannot be a mask of several
-CPUs. Only the first non-zero bit is taken into account.
-
-
-Usage examples
-==============
-
-The target CPU has to be specified as a hexadecimal CPU mask. The
-first non-zero bit is the selected CPU. This format has been kept for
-compatibility reasons with i386.
-
-Set the delivery mode of interrupt 41 to fixed and route the
-interrupts to CPU #3 (logical CPU number) (2^3=0x08)::
-
- echo "8" >/proc/irq/41/smp_affinity
-
-Set the default route for IRQ number 41 to CPU 6 in lowest priority
-delivery mode (redirectable)::
-
- echo "r 40" >/proc/irq/41/smp_affinity
-
-The output of the command::
-
- cat /proc/irq/IRQ#/smp_affinity
-
-gives the target CPU mask for the specified interrupt vector. If the CPU
-mask is preceded by the character "r", the interrupt is redirectable
-(i.e. lowest priority mode routing is used), otherwise its route is
-fixed.
-
-
-
-Initialization and default behavior
-===================================
-
-If the platform features IRQ redirection (info provided by SAL) all
-IO-SAPIC interrupts are initialized with CPU#0 as their default target
-and the routing is the so called "lowest priority mode" (actually
-fixed SAPIC mode with hint). The XTP chipset registers are used as hints
-for the IRQ routing. Currently in Linux XTP registers can have three
-values:
-
- - minimal for an idle task,
- - normal if any other task runs,
- - maximal if the CPU is going to be switched off.
-
-The IRQ is routed to the CPU with lowest XTP register value, the
-search begins at the default CPU. Therefore most of the interrupts
-will be handled by CPU #0.
-
-If the platform doesn't feature interrupt redirection IOSAPIC fixed
-routing is used. The target CPUs are distributed in a round robin
-manner. IRQs will be routed only to the selected target CPUs. Check
-with::
-
- cat /proc/interrupts
-
-
-
-Comments
-========
-
-On large (multi-node) systems it is recommended to route the IRQs to
-the node to which the corresponding device is connected.
-For systems like the NEC AzusA we get IRQ node-affinity for free. This
-is because usually the chipsets on each node redirect the interrupts
-only to their own CPUs (as they cannot see the XTP registers on the
-other nodes).
diff --git a/Documentation/arch/ia64/mca.rst b/Documentation/arch/ia64/mca.rst
deleted file mode 100644
index 08270bba44a4..000000000000
--- a/Documentation/arch/ia64/mca.rst
+++ /dev/null
@@ -1,198 +0,0 @@
-=============================================================
-An ad-hoc collection of notes on IA64 MCA and INIT processing
-=============================================================
-
-Feel free to update it with notes about any area that is not clear.
-
----
-
-MCA/INIT are completely asynchronous. They can occur at any time, when
-the OS is in any state. Including when one of the cpus is already
-holding a spinlock. Trying to get any lock from MCA/INIT state is
-asking for deadlock. Also the state of structures that are protected
-by locks is indeterminate, including linked lists.
-
----
-
-The complicated ia64 MCA process. All of this is mandated by Intel's
-specification for ia64 SAL, error recovery and unwind, it is not as
-if we have a choice here.
-
-* MCA occurs on one cpu, usually due to a double bit memory error.
- This is the monarch cpu.
-
-* SAL sends an MCA rendezvous interrupt (which is a normal interrupt)
- to all the other cpus, the slaves.
-
-* Slave cpus that receive the MCA interrupt call down into SAL, they
- end up spinning disabled while the MCA is being serviced.
-
-* If any slave cpu was already spinning disabled when the MCA occurred
- then it cannot service the MCA interrupt. SAL waits ~20 seconds then
- sends an unmaskable INIT event to the slave cpus that have not
- already rendezvoused.
-
-* Because MCA/INIT can be delivered at any time, including when the cpu
- is down in PAL in physical mode, the registers at the time of the
- event are _completely_ undefined. In particular the MCA/INIT
- handlers cannot rely on the thread pointer, PAL physical mode can
- (and does) modify TP. It is allowed to do that as long as it resets
- TP on return. However MCA/INIT events expose us to these PAL
- internal TP changes. Hence curr_task().
-
-* If an MCA/INIT event occurs while the kernel was running (not user
- space) and the kernel has called PAL then the MCA/INIT handler cannot
- assume that the kernel stack is in a fit state to be used. Mainly
- because PAL may or may not maintain the stack pointer internally.
- Because the MCA/INIT handlers cannot trust the kernel stack, they
- have to use their own, per-cpu stacks. The MCA/INIT stacks are
- preformatted with just enough task state to let the relevant handlers
- do their job.
-
-* Unlike most other architectures, the ia64 struct task is embedded in
- the kernel stack[1]. So switching to a new kernel stack means that
- we switch to a new task as well. Because various bits of the kernel
- assume that current points into the struct task, switching to a new
- stack also means a new value for current.
-
-* Once all slaves have rendezvoused and are spinning disabled, the
- monarch is entered. The monarch now tries to diagnose the problem
- and decide if it can recover or not.
-
-* Part of the monarch's job is to look at the state of all the other
- tasks. The only way to do that on ia64 is to call the unwinder,
- as mandated by Intel.
-
-* The starting point for the unwind depends on whether a task is
- running or not. That is, whether it is on a cpu or is blocked. The
- monarch has to determine whether or not a task is on a cpu before it
- knows how to start unwinding it. The tasks that received an MCA or
- INIT event are no longer running, they have been converted to blocked
- tasks. But (and its a big but), the cpus that received the MCA
- rendezvous interrupt are still running on their normal kernel stacks!
-
-* To distinguish between these two cases, the monarch must know which
- tasks are on a cpu and which are not. Hence each slave cpu that
- switches to an MCA/INIT stack, registers its new stack using
- set_curr_task(), so the monarch can tell that the _original_ task is
- no longer running on that cpu. That gives us a decent chance of
- getting a valid backtrace of the _original_ task.
-
-* MCA/INIT can be nested, to a depth of 2 on any cpu. In the case of a
- nested error, we want diagnostics on the MCA/INIT handler that
- failed, not on the task that was originally running. Again this
- requires set_curr_task() so the MCA/INIT handlers can register their
- own stack as running on that cpu. Then a recursive error gets a
- trace of the failing handler's "task".
-
-[1]
- My (Keith Owens) original design called for ia64 to separate its
- struct task and the kernel stacks. Then the MCA/INIT data would be
- chained stacks like i386 interrupt stacks. But that required
- radical surgery on the rest of ia64, plus extra hard wired TLB
- entries with its associated performance degradation. David
- Mosberger vetoed that approach. Which meant that separate kernel
- stacks meant separate "tasks" for the MCA/INIT handlers.
-
----
-
-INIT is less complicated than MCA. Pressing the nmi button or using
-the equivalent command on the management console sends INIT to all
-cpus. SAL picks one of the cpus as the monarch and the rest are
-slaves. All the OS INIT handlers are entered at approximately the same
-time. The OS monarch prints the state of all tasks and returns, after
-which the slaves return and the system resumes.
-
-At least that is what is supposed to happen. Alas there are broken
-versions of SAL out there. Some drive all the cpus as monarchs. Some
-drive them all as slaves. Some drive one cpu as monarch, wait for that
-cpu to return from the OS then drive the rest as slaves. Some versions
-of SAL cannot even cope with returning from the OS, they spin inside
-SAL on resume. The OS INIT code has workarounds for some of these
-broken SAL symptoms, but some simply cannot be fixed from the OS side.
-
----
-
-The scheduler hooks used by ia64 (curr_task, set_curr_task) are layer
-violations. Unfortunately MCA/INIT start off as massive layer
-violations (can occur at _any_ time) and they build from there.
-
-At least ia64 makes an attempt at recovering from hardware errors, but
-it is a difficult problem because of the asynchronous nature of these
-errors. When processing an unmaskable interrupt we sometimes need
-special code to cope with our inability to take any locks.
-
----
-
-How is ia64 MCA/INIT different from x86 NMI?
-
-* x86 NMI typically gets delivered to one cpu. MCA/INIT gets sent to
- all cpus.
-
-* x86 NMI cannot be nested. MCA/INIT can be nested, to a depth of 2
- per cpu.
-
-* x86 has a separate struct task which points to one of multiple kernel
- stacks. ia64 has the struct task embedded in the single kernel
- stack, so switching stack means switching task.
-
-* x86 does not call the BIOS so the NMI handler does not have to worry
- about any registers having changed. MCA/INIT can occur while the cpu
- is in PAL in physical mode, with undefined registers and an undefined
- kernel stack.
-
-* i386 backtrace is not very sensitive to whether a process is running
- or not. ia64 unwind is very, very sensitive to whether a process is
- running or not.
-
----
-
-What happens when MCA/INIT is delivered what a cpu is running user
-space code?
-
-The user mode registers are stored in the RSE area of the MCA/INIT on
-entry to the OS and are restored from there on return to SAL, so user
-mode registers are preserved across a recoverable MCA/INIT. Since the
-OS has no idea what unwind data is available for the user space stack,
-MCA/INIT never tries to backtrace user space. Which means that the OS
-does not bother making the user space process look like a blocked task,
-i.e. the OS does not copy pt_regs and switch_stack to the user space
-stack. Also the OS has no idea how big the user space RSE and memory
-stacks are, which makes it too risky to copy the saved state to a user
-mode stack.
-
----
-
-How do we get a backtrace on the tasks that were running when MCA/INIT
-was delivered?
-
-mca.c:::ia64_mca_modify_original_stack(). That identifies and
-verifies the original kernel stack, copies the dirty registers from
-the MCA/INIT stack's RSE to the original stack's RSE, copies the
-skeleton struct pt_regs and switch_stack to the original stack, fills
-in the skeleton structures from the PAL minstate area and updates the
-original stack's thread.ksp. That makes the original stack look
-exactly like any other blocked task, i.e. it now appears to be
-sleeping. To get a backtrace, just start with thread.ksp for the
-original task and unwind like any other sleeping task.
-
----
-
-How do we identify the tasks that were running when MCA/INIT was
-delivered?
-
-If the previous task has been verified and converted to a blocked
-state, then sos->prev_task on the MCA/INIT stack is updated to point to
-the previous task. You can look at that field in dumps or debuggers.
-To help distinguish between the handler and the original tasks,
-handlers have _TIF_MCA_INIT set in thread_info.flags.
-
-The sos data is always in the MCA/INIT handler stack, at offset
-MCA_SOS_OFFSET. You can get that value from mca_asm.h or calculate it
-as KERNEL_STACK_SIZE - sizeof(struct pt_regs) - sizeof(struct
-ia64_sal_os_state), with 16 byte alignment for all structures.
-
-Also the comm field of the MCA/INIT task is modified to include the pid
-of the original task, for humans to use. For example, a comm field of
-'MCA 12159' means that pid 12159 was running when the MCA was
-delivered.
diff --git a/Documentation/arch/ia64/serial.rst b/Documentation/arch/ia64/serial.rst
deleted file mode 100644
index 1de70c305a79..000000000000
--- a/Documentation/arch/ia64/serial.rst
+++ /dev/null
@@ -1,165 +0,0 @@
-==============
-Serial Devices
-==============
-
-Serial Device Naming
-====================
-
- As of 2.6.10, serial devices on ia64 are named based on the
- order of ACPI and PCI enumeration. The first device in the
- ACPI namespace (if any) becomes /dev/ttyS0, the second becomes
- /dev/ttyS1, etc., and PCI devices are named sequentially
- starting after the ACPI devices.
-
- Prior to 2.6.10, there were confusing exceptions to this:
-
- - Firmware on some machines (mostly from HP) provides an HCDP
- table[1] that tells the kernel about devices that can be used
- as a serial console. If the user specified "console=ttyS0"
- or the EFI ConOut path contained only UART devices, the
- kernel registered the device described by the HCDP as
- /dev/ttyS0.
-
- - If there was no HCDP, we assumed there were UARTs at the
- legacy COM port addresses (I/O ports 0x3f8 and 0x2f8), so
- the kernel registered those as /dev/ttyS0 and /dev/ttyS1.
-
- Any additional ACPI or PCI devices were registered sequentially
- after /dev/ttyS0 as they were discovered.
-
- With an HCDP, device names changed depending on EFI configuration
- and "console=" arguments. Without an HCDP, device names didn't
- change, but we registered devices that might not really exist.
-
- For example, an HP rx1600 with a single built-in serial port
- (described in the ACPI namespace) plus an MP[2] (a PCI device) has
- these ports:
-
- ========== ========== ============ ============ =======
- Type MMIO pre-2.6.10 pre-2.6.10 2.6.10+
- address
- (EFI console (EFI console
- on builtin) on MP port)
- ========== ========== ============ ============ =======
- builtin 0xff5e0000 ttyS0 ttyS1 ttyS0
- MP UPS 0xf8031000 ttyS1 ttyS2 ttyS1
- MP Console 0xf8030000 ttyS2 ttyS0 ttyS2
- MP 2 0xf8030010 ttyS3 ttyS3 ttyS3
- MP 3 0xf8030038 ttyS4 ttyS4 ttyS4
- ========== ========== ============ ============ =======
-
-Console Selection
-=================
-
- EFI knows what your console devices are, but it doesn't tell the
- kernel quite enough to actually locate them. The DIG64 HCDP
- table[1] does tell the kernel where potential serial console
- devices are, but not all firmware supplies it. Also, EFI supports
- multiple simultaneous consoles and doesn't tell the kernel which
- should be the "primary" one.
-
- So how do you tell Linux which console device to use?
-
- - If your firmware supplies the HCDP, it is simplest to
- configure EFI with a single device (either a UART or a VGA
- card) as the console. Then you don't need to tell Linux
- anything; the kernel will automatically use the EFI console.
-
- (This works only in 2.6.6 or later; prior to that you had
- to specify "console=ttyS0" to get a serial console.)
-
- - Without an HCDP, Linux defaults to a VGA console unless you
- specify a "console=" argument.
-
- NOTE: Don't assume that a serial console device will be /dev/ttyS0.
- It might be ttyS1, ttyS2, etc. Make sure you have the appropriate
- entries in /etc/inittab (for getty) and /etc/securetty (to allow
- root login).
-
-Early Serial Console
-====================
-
- The kernel can't start using a serial console until it knows where
- the device lives. Normally this happens when the driver enumerates
- all the serial devices, which can happen a minute or more after the
- kernel starts booting.
-
- 2.6.10 and later kernels have an "early uart" driver that works
- very early in the boot process. The kernel will automatically use
- this if the user supplies an argument like "console=uart,io,0x3f8",
- or if the EFI console path contains only a UART device and the
- firmware supplies an HCDP.
-
-Troubleshooting Serial Console Problems
-=======================================
-
- No kernel output after elilo prints "Uncompressing Linux... done":
-
- - You specified "console=ttyS0" but Linux changed the device
- to which ttyS0 refers. Configure exactly one EFI console
- device[3] and remove the "console=" option.
-
- - The EFI console path contains both a VGA device and a UART.
- EFI and elilo use both, but Linux defaults to VGA. Remove
- the VGA device from the EFI console path[3].
-
- - Multiple UARTs selected as EFI console devices. EFI and
- elilo use all selected devices, but Linux uses only one.
- Make sure only one UART is selected in the EFI console
- path[3].
-
- - You're connected to an HP MP port[2] but have a non-MP UART
- selected as EFI console device. EFI uses the MP as a
- console device even when it isn't explicitly selected.
- Either move the console cable to the non-MP UART, or change
- the EFI console path[3] to the MP UART.
-
- Long pause (60+ seconds) between "Uncompressing Linux... done" and
- start of kernel output:
-
- - No early console because you used "console=ttyS<n>". Remove
- the "console=" option if your firmware supplies an HCDP.
-
- - If you don't have an HCDP, the kernel doesn't know where
- your console lives until the driver discovers serial
- devices. Use "console=uart,io,0x3f8" (or appropriate
- address for your machine).
-
- Kernel and init script output works fine, but no "login:" prompt:
-
- - Add getty entry to /etc/inittab for console tty. Look for
- the "Adding console on ttyS<n>" message that tells you which
- device is the console.
-
- "login:" prompt, but can't login as root:
-
- - Add entry to /etc/securetty for console tty.
-
- No ACPI serial devices found in 2.6.17 or later:
-
- - Turn on CONFIG_PNP and CONFIG_PNPACPI. Prior to 2.6.17, ACPI
- serial devices were discovered by 8250_acpi. In 2.6.17,
- 8250_acpi was replaced by the combination of 8250_pnp and
- CONFIG_PNPACPI.
-
-
-
-[1]
- http://www.dig64.org/specifications/agreement
- The table was originally defined as the "HCDP" for "Headless
- Console/Debug Port." The current version is the "PCDP" for
- "Primary Console and Debug Port Devices."
-
-[2]
- The HP MP (management processor) is a PCI device that provides
- several UARTs. One of the UARTs is often used as a console; the
- EFI Boot Manager identifies it as "Acpi(HWP0002,700)/Pci(...)/Uart".
- The external connection is usually a 25-pin connector, and a
- special dongle converts that to three 9-pin connectors, one of
- which is labelled "Console."
-
-[3]
- EFI console devices are configured using the EFI Boot Manager
- "Boot option maintenance" menu. You may have to interrupt the
- boot sequence to use this menu, and you will have to reset the
- box after changing console configuration.
diff --git a/Documentation/arch/index.rst b/Documentation/arch/index.rst
index 80ee31016584..3f9962e45c09 100644
--- a/Documentation/arch/index.rst
+++ b/Documentation/arch/index.rst
@@ -10,18 +10,17 @@ implementation.
:maxdepth: 2
arc/index
- ../arm/index
- ../arm64/index
- ia64/index
- ../loongarch/index
+ arm/index
+ arm64/index
+ loongarch/index
m68k/index
- ../mips/index
+ mips/index
nios2/index
openrisc/index
parisc/index
- ../powerpc/index
- ../riscv/index
- ../s390/index
+ powerpc/index
+ riscv/index
+ s390/index
sh/index
sparc/index
x86/index
diff --git a/Documentation/loongarch/booting.rst b/Documentation/arch/loongarch/booting.rst
index 91eccd410478..91eccd410478 100644
--- a/Documentation/loongarch/booting.rst
+++ b/Documentation/arch/loongarch/booting.rst
diff --git a/Documentation/arch/loongarch/features.rst b/Documentation/arch/loongarch/features.rst
new file mode 100644
index 000000000000..009f44c7951f
--- /dev/null
+++ b/Documentation/arch/loongarch/features.rst
@@ -0,0 +1,3 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+.. kernel-feat:: features loongarch
diff --git a/Documentation/loongarch/index.rst b/Documentation/arch/loongarch/index.rst
index c779bfa00c05..c779bfa00c05 100644
--- a/Documentation/loongarch/index.rst
+++ b/Documentation/arch/loongarch/index.rst
diff --git a/Documentation/arch/loongarch/introduction.rst b/Documentation/arch/loongarch/introduction.rst
new file mode 100644
index 000000000000..5e6db78abeaf
--- /dev/null
+++ b/Documentation/arch/loongarch/introduction.rst
@@ -0,0 +1,390 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=========================
+Introduction to LoongArch
+=========================
+
+LoongArch is a new RISC ISA, which is a bit like MIPS or RISC-V. There are
+currently 3 variants: a reduced 32-bit version (LA32R), a standard 32-bit
+version (LA32S) and a 64-bit version (LA64). There are 4 privilege levels
+(PLVs) defined in LoongArch: PLV0~PLV3, from high to low. Kernel runs at PLV0
+while applications run at PLV3. This document introduces the registers, basic
+instruction set, virtual memory and some other topics of LoongArch.
+
+Registers
+=========
+
+LoongArch registers include general purpose registers (GPRs), floating point
+registers (FPRs), vector registers (VRs) and control status registers (CSRs)
+used in privileged mode (PLV0).
+
+GPRs
+----
+
+LoongArch has 32 GPRs ( ``$r0`` ~ ``$r31`` ); each one is 32-bit wide in LA32
+and 64-bit wide in LA64. ``$r0`` is hard-wired to zero, and the other registers
+are not architecturally special. (Except ``$r1``, which is hard-wired as the
+link register of the BL instruction.)
+
+The kernel uses a variant of the LoongArch register convention, as described in
+the LoongArch ELF psABI spec, in :ref:`References <loongarch-references>`:
+
+================= =============== =================== ============
+Name Alias Usage Preserved
+ across calls
+================= =============== =================== ============
+``$r0`` ``$zero`` Constant zero Unused
+``$r1`` ``$ra`` Return address No
+``$r2`` ``$tp`` TLS/Thread pointer Unused
+``$r3`` ``$sp`` Stack pointer Yes
+``$r4``-``$r11`` ``$a0``-``$a7`` Argument registers No
+``$r4``-``$r5`` ``$v0``-``$v1`` Return value No
+``$r12``-``$r20`` ``$t0``-``$t8`` Temp registers No
+``$r21`` ``$u0`` Percpu base address Unused
+``$r22`` ``$fp`` Frame pointer Yes
+``$r23``-``$r31`` ``$s0``-``$s8`` Static registers Yes
+================= =============== =================== ============
+
+.. Note::
+ The register ``$r21`` is reserved in the ELF psABI, but used by the Linux
+ kernel for storing the percpu base address. It normally has no ABI name,
+ but is called ``$u0`` in the kernel. You may also see ``$v0`` or ``$v1``
+ in some old code,however they are deprecated aliases of ``$a0`` and ``$a1``
+ respectively.
+
+FPRs
+----
+
+LoongArch has 32 FPRs ( ``$f0`` ~ ``$f31`` ) when FPU is present. Each one is
+64-bit wide on the LA64 cores.
+
+The floating-point register convention is the same as described in the
+LoongArch ELF psABI spec:
+
+================= ================== =================== ============
+Name Alias Usage Preserved
+ across calls
+================= ================== =================== ============
+``$f0``-``$f7`` ``$fa0``-``$fa7`` Argument registers No
+``$f0``-``$f1`` ``$fv0``-``$fv1`` Return value No
+``$f8``-``$f23`` ``$ft0``-``$ft15`` Temp registers No
+``$f24``-``$f31`` ``$fs0``-``$fs7`` Static registers Yes
+================= ================== =================== ============
+
+.. Note::
+ You may see ``$fv0`` or ``$fv1`` in some old code, however they are
+ deprecated aliases of ``$fa0`` and ``$fa1`` respectively.
+
+VRs
+----
+
+There are currently 2 vector extensions to LoongArch:
+
+- LSX (Loongson SIMD eXtension) with 128-bit vectors,
+- LASX (Loongson Advanced SIMD eXtension) with 256-bit vectors.
+
+LSX brings ``$v0`` ~ ``$v31`` while LASX brings ``$x0`` ~ ``$x31`` as the vector
+registers.
+
+The VRs overlap with FPRs: for example, on a core implementing LSX and LASX,
+the lower 128 bits of ``$x0`` is shared with ``$v0``, and the lower 64 bits of
+``$v0`` is shared with ``$f0``; same with all other VRs.
+
+CSRs
+----
+
+CSRs can only be accessed from privileged mode (PLV0):
+
+================= ===================================== ==============
+Address Full Name Abbrev Name
+================= ===================================== ==============
+0x0 Current Mode Information CRMD
+0x1 Pre-exception Mode Information PRMD
+0x2 Extension Unit Enable EUEN
+0x3 Miscellaneous Control MISC
+0x4 Exception Configuration ECFG
+0x5 Exception Status ESTAT
+0x6 Exception Return Address ERA
+0x7 Bad (Faulting) Virtual Address BADV
+0x8 Bad (Faulting) Instruction Word BADI
+0xC Exception Entrypoint Address EENTRY
+0x10 TLB Index TLBIDX
+0x11 TLB Entry High-order Bits TLBEHI
+0x12 TLB Entry Low-order Bits 0 TLBELO0
+0x13 TLB Entry Low-order Bits 1 TLBELO1
+0x18 Address Space Identifier ASID
+0x19 Page Global Directory Address for PGDL
+ Lower-half Address Space
+0x1A Page Global Directory Address for PGDH
+ Higher-half Address Space
+0x1B Page Global Directory Address PGD
+0x1C Page Walk Control for Lower- PWCL
+ half Address Space
+0x1D Page Walk Control for Higher- PWCH
+ half Address Space
+0x1E STLB Page Size STLBPS
+0x1F Reduced Virtual Address Configuration RVACFG
+0x20 CPU Identifier CPUID
+0x21 Privileged Resource Configuration 1 PRCFG1
+0x22 Privileged Resource Configuration 2 PRCFG2
+0x23 Privileged Resource Configuration 3 PRCFG3
+0x30+n (0≤n≤15) Saved Data register SAVEn
+0x40 Timer Identifier TID
+0x41 Timer Configuration TCFG
+0x42 Timer Value TVAL
+0x43 Compensation of Timer Count CNTC
+0x44 Timer Interrupt Clearing TICLR
+0x60 LLBit Control LLBCTL
+0x80 Implementation-specific Control 1 IMPCTL1
+0x81 Implementation-specific Control 2 IMPCTL2
+0x88 TLB Refill Exception Entrypoint TLBRENTRY
+ Address
+0x89 TLB Refill Exception BAD (Faulting) TLBRBADV
+ Virtual Address
+0x8A TLB Refill Exception Return Address TLBRERA
+0x8B TLB Refill Exception Saved Data TLBRSAVE
+ Register
+0x8C TLB Refill Exception Entry Low-order TLBRELO0
+ Bits 0
+0x8D TLB Refill Exception Entry Low-order TLBRELO1
+ Bits 1
+0x8E TLB Refill Exception Entry High-order TLBEHI
+ Bits
+0x8F TLB Refill Exception Pre-exception TLBRPRMD
+ Mode Information
+0x90 Machine Error Control MERRCTL
+0x91 Machine Error Information 1 MERRINFO1
+0x92 Machine Error Information 2 MERRINFO2
+0x93 Machine Error Exception Entrypoint MERRENTRY
+ Address
+0x94 Machine Error Exception Return MERRERA
+ Address
+0x95 Machine Error Exception Saved Data MERRSAVE
+ Register
+0x98 Cache TAGs CTAG
+0x180+n (0≤n≤3) Direct Mapping Configuration Window n DMWn
+0x200+2n (0≤n≤31) Performance Monitor Configuration n PMCFGn
+0x201+2n (0≤n≤31) Performance Monitor Overall Counter n PMCNTn
+0x300 Memory Load/Store WatchPoint MWPC
+ Overall Control
+0x301 Memory Load/Store WatchPoint MWPS
+ Overall Status
+0x310+8n (0≤n≤7) Memory Load/Store WatchPoint n MWPnCFG1
+ Configuration 1
+0x311+8n (0≤n≤7) Memory Load/Store WatchPoint n MWPnCFG2
+ Configuration 2
+0x312+8n (0≤n≤7) Memory Load/Store WatchPoint n MWPnCFG3
+ Configuration 3
+0x313+8n (0≤n≤7) Memory Load/Store WatchPoint n MWPnCFG4
+ Configuration 4
+0x380 Instruction Fetch WatchPoint FWPC
+ Overall Control
+0x381 Instruction Fetch WatchPoint FWPS
+ Overall Status
+0x390+8n (0≤n≤7) Instruction Fetch WatchPoint n FWPnCFG1
+ Configuration 1
+0x391+8n (0≤n≤7) Instruction Fetch WatchPoint n FWPnCFG2
+ Configuration 2
+0x392+8n (0≤n≤7) Instruction Fetch WatchPoint n FWPnCFG3
+ Configuration 3
+0x393+8n (0≤n≤7) Instruction Fetch WatchPoint n FWPnCFG4
+ Configuration 4
+0x500 Debug Register DBG
+0x501 Debug Exception Return Address DERA
+0x502 Debug Exception Saved Data Register DSAVE
+================= ===================================== ==============
+
+ERA, TLBRERA, MERRERA and DERA are sometimes also known as EPC, TLBREPC, MERREPC
+and DEPC respectively.
+
+Basic Instruction Set
+=====================
+
+Instruction formats
+-------------------
+
+LoongArch instructions are 32 bits wide, belonging to 9 basic instruction
+formats (and variants of them):
+
+=========== ==========================
+Format name Composition
+=========== ==========================
+2R Opcode + Rj + Rd
+3R Opcode + Rk + Rj + Rd
+4R Opcode + Ra + Rk + Rj + Rd
+2RI8 Opcode + I8 + Rj + Rd
+2RI12 Opcode + I12 + Rj + Rd
+2RI14 Opcode + I14 + Rj + Rd
+2RI16 Opcode + I16 + Rj + Rd
+1RI21 Opcode + I21L + Rj + I21H
+I26 Opcode + I26L + I26H
+=========== ==========================
+
+Rd is the destination register operand, while Rj, Rk and Ra ("a" stands for
+"additional") are the source register operands. I8/I12/I14/I16/I21/I26 are
+immediate operands of respective width. The longer I21 and I26 are stored
+in separate higher and lower parts in the instruction word, denoted by the "L"
+and "H" suffixes.
+
+List of Instructions
+--------------------
+
+For brevity, only instruction names (mnemonics) are listed here; please see the
+:ref:`References <loongarch-references>` for details.
+
+
+1. Arithmetic Instructions::
+
+ ADD.W SUB.W ADDI.W ADD.D SUB.D ADDI.D
+ SLT SLTU SLTI SLTUI
+ AND OR NOR XOR ANDN ORN ANDI ORI XORI
+ MUL.W MULH.W MULH.WU DIV.W DIV.WU MOD.W MOD.WU
+ MUL.D MULH.D MULH.DU DIV.D DIV.DU MOD.D MOD.DU
+ PCADDI PCADDU12I PCADDU18I
+ LU12I.W LU32I.D LU52I.D ADDU16I.D
+
+2. Bit-shift Instructions::
+
+ SLL.W SRL.W SRA.W ROTR.W SLLI.W SRLI.W SRAI.W ROTRI.W
+ SLL.D SRL.D SRA.D ROTR.D SLLI.D SRLI.D SRAI.D ROTRI.D
+
+3. Bit-manipulation Instructions::
+
+ EXT.W.B EXT.W.H CLO.W CLO.D SLZ.W CLZ.D CTO.W CTO.D CTZ.W CTZ.D
+ BYTEPICK.W BYTEPICK.D BSTRINS.W BSTRINS.D BSTRPICK.W BSTRPICK.D
+ REVB.2H REVB.4H REVB.2W REVB.D REVH.2W REVH.D BITREV.4B BITREV.8B BITREV.W BITREV.D
+ MASKEQZ MASKNEZ
+
+4. Branch Instructions::
+
+ BEQ BNE BLT BGE BLTU BGEU BEQZ BNEZ B BL JIRL
+
+5. Load/Store Instructions::
+
+ LD.B LD.BU LD.H LD.HU LD.W LD.WU LD.D ST.B ST.H ST.W ST.D
+ LDX.B LDX.BU LDX.H LDX.HU LDX.W LDX.WU LDX.D STX.B STX.H STX.W STX.D
+ LDPTR.W LDPTR.D STPTR.W STPTR.D
+ PRELD PRELDX
+
+6. Atomic Operation Instructions::
+
+ LL.W SC.W LL.D SC.D
+ AMSWAP.W AMSWAP.D AMADD.W AMADD.D AMAND.W AMAND.D AMOR.W AMOR.D AMXOR.W AMXOR.D
+ AMMAX.W AMMAX.D AMMIN.W AMMIN.D
+
+7. Barrier Instructions::
+
+ IBAR DBAR
+
+8. Special Instructions::
+
+ SYSCALL BREAK CPUCFG NOP IDLE ERTN(ERET) DBCL(DBGCALL) RDTIMEL.W RDTIMEH.W RDTIME.D
+ ASRTLE.D ASRTGT.D
+
+9. Privileged Instructions::
+
+ CSRRD CSRWR CSRXCHG
+ IOCSRRD.B IOCSRRD.H IOCSRRD.W IOCSRRD.D IOCSRWR.B IOCSRWR.H IOCSRWR.W IOCSRWR.D
+ CACOP TLBP(TLBSRCH) TLBRD TLBWR TLBFILL TLBCLR TLBFLUSH INVTLB LDDIR LDPTE
+
+Virtual Memory
+==============
+
+LoongArch supports direct-mapped virtual memory and page-mapped virtual memory.
+
+Direct-mapped virtual memory is configured by CSR.DMWn (n=0~3), it has a simple
+relationship between virtual address (VA) and physical address (PA)::
+
+ VA = PA + FixedOffset
+
+Page-mapped virtual memory has arbitrary relationship between VA and PA, which
+is recorded in TLB and page tables. LoongArch's TLB includes a fully-associative
+MTLB (Multiple Page Size TLB) and set-associative STLB (Single Page Size TLB).
+
+By default, the whole virtual address space of LA32 is configured like this:
+
+============ =========================== =============================
+Name Address Range Attributes
+============ =========================== =============================
+``UVRANGE`` ``0x00000000 - 0x7FFFFFFF`` Page-mapped, Cached, PLV0~3
+``KPRANGE0`` ``0x80000000 - 0x9FFFFFFF`` Direct-mapped, Uncached, PLV0
+``KPRANGE1`` ``0xA0000000 - 0xBFFFFFFF`` Direct-mapped, Cached, PLV0
+``KVRANGE`` ``0xC0000000 - 0xFFFFFFFF`` Page-mapped, Cached, PLV0
+============ =========================== =============================
+
+User mode (PLV3) can only access UVRANGE. For direct-mapped KPRANGE0 and
+KPRANGE1, PA is equal to VA with bit30~31 cleared. For example, the uncached
+direct-mapped VA of 0x00001000 is 0x80001000, and the cached direct-mapped
+VA of 0x00001000 is 0xA0001000.
+
+By default, the whole virtual address space of LA64 is configured like this:
+
+============ ====================== ======================================
+Name Address Range Attributes
+============ ====================== ======================================
+``XUVRANGE`` ``0x0000000000000000 - Page-mapped, Cached, PLV0~3
+ 0x3FFFFFFFFFFFFFFF``
+``XSPRANGE`` ``0x4000000000000000 - Direct-mapped, Cached / Uncached, PLV0
+ 0x7FFFFFFFFFFFFFFF``
+``XKPRANGE`` ``0x8000000000000000 - Direct-mapped, Cached / Uncached, PLV0
+ 0xBFFFFFFFFFFFFFFF``
+``XKVRANGE`` ``0xC000000000000000 - Page-mapped, Cached, PLV0
+ 0xFFFFFFFFFFFFFFFF``
+============ ====================== ======================================
+
+User mode (PLV3) can only access XUVRANGE. For direct-mapped XSPRANGE and
+XKPRANGE, PA is equal to VA with bits 60~63 cleared, and the cache attribute
+is configured by bits 60~61 in VA: 0 is for strongly-ordered uncached, 1 is
+for coherent cached, and 2 is for weakly-ordered uncached.
+
+Currently we only use XKPRANGE for direct mapping and XSPRANGE is reserved.
+
+To put this in action: the strongly-ordered uncached direct-mapped VA (in
+XKPRANGE) of 0x00000000_00001000 is 0x80000000_00001000, the coherent cached
+direct-mapped VA (in XKPRANGE) of 0x00000000_00001000 is 0x90000000_00001000,
+and the weakly-ordered uncached direct-mapped VA (in XKPRANGE) of 0x00000000
+_00001000 is 0xA0000000_00001000.
+
+Relationship of Loongson and LoongArch
+======================================
+
+LoongArch is a RISC ISA which is different from any other existing ones, while
+Loongson is a family of processors. Loongson includes 3 series: Loongson-1 is
+the 32-bit processor series, Loongson-2 is the low-end 64-bit processor series,
+and Loongson-3 is the high-end 64-bit processor series. Old Loongson is based on
+MIPS, while New Loongson is based on LoongArch. Take Loongson-3 as an example:
+Loongson-3A1000/3B1500/3A2000/3A3000/3A4000 are MIPS-compatible, while Loongson-
+3A5000 (and future revisions) are all based on LoongArch.
+
+.. _loongarch-references:
+
+References
+==========
+
+Official web site of Loongson Technology Corp. Ltd.:
+
+ http://www.loongson.cn/
+
+Developer web site of Loongson and LoongArch (Software and Documentation):
+
+ http://www.loongnix.cn/
+
+ https://github.com/loongson/
+
+ https://loongson.github.io/LoongArch-Documentation/
+
+Documentation of LoongArch ISA:
+
+ https://github.com/loongson/LoongArch-Documentation/releases/latest/download/LoongArch-Vol1-v1.10-CN.pdf (in Chinese)
+
+ https://github.com/loongson/LoongArch-Documentation/releases/latest/download/LoongArch-Vol1-v1.10-EN.pdf (in English)
+
+Documentation of LoongArch ELF psABI:
+
+ https://github.com/loongson/LoongArch-Documentation/releases/latest/download/LoongArch-ELF-ABI-v2.01-CN.pdf (in Chinese)
+
+ https://github.com/loongson/LoongArch-Documentation/releases/latest/download/LoongArch-ELF-ABI-v2.01-EN.pdf (in English)
+
+Linux kernel repository of Loongson and LoongArch:
+
+ https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson.git
diff --git a/Documentation/arch/loongarch/irq-chip-model.rst b/Documentation/arch/loongarch/irq-chip-model.rst
new file mode 100644
index 000000000000..8f5c3345109e
--- /dev/null
+++ b/Documentation/arch/loongarch/irq-chip-model.rst
@@ -0,0 +1,256 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=======================================
+IRQ chip model (hierarchy) of LoongArch
+=======================================
+
+Currently, LoongArch based processors (e.g. Loongson-3A5000) can only work together
+with LS7A chipsets. The irq chips in LoongArch computers include CPUINTC (CPU Core
+Interrupt Controller), LIOINTC (Legacy I/O Interrupt Controller), EIOINTC (Extended
+I/O Interrupt Controller), HTVECINTC (Hyper-Transport Vector Interrupt Controller),
+PCH-PIC (Main Interrupt Controller in LS7A chipset), PCH-LPC (LPC Interrupt Controller
+in LS7A chipset) and PCH-MSI (MSI Interrupt Controller).
+
+CPUINTC is a per-core controller (in CPU), LIOINTC/EIOINTC/HTVECINTC are per-package
+controllers (in CPU), while PCH-PIC/PCH-LPC/PCH-MSI are controllers out of CPU (i.e.,
+in chipsets). These controllers (in other words, irqchips) are linked in a hierarchy,
+and there are two models of hierarchy (legacy model and extended model).
+
+Legacy IRQ model
+================
+
+In this model, IPI (Inter-Processor Interrupt) and CPU Local Timer interrupt go
+to CPUINTC directly, CPU UARTS interrupts go to LIOINTC, while all other devices
+interrupts go to PCH-PIC/PCH-LPC/PCH-MSI and gathered by HTVECINTC, and then go
+to LIOINTC, and then CPUINTC::
+
+ +-----+ +---------+ +-------+
+ | IPI | --> | CPUINTC | <-- | Timer |
+ +-----+ +---------+ +-------+
+ ^
+ |
+ +---------+ +-------+
+ | LIOINTC | <-- | UARTs |
+ +---------+ +-------+
+ ^
+ |
+ +-----------+
+ | HTVECINTC |
+ +-----------+
+ ^ ^
+ | |
+ +---------+ +---------+
+ | PCH-PIC | | PCH-MSI |
+ +---------+ +---------+
+ ^ ^ ^
+ | | |
+ +---------+ +---------+ +---------+
+ | PCH-LPC | | Devices | | Devices |
+ +---------+ +---------+ +---------+
+ ^
+ |
+ +---------+
+ | Devices |
+ +---------+
+
+Extended IRQ model
+==================
+
+In this model, IPI (Inter-Processor Interrupt) and CPU Local Timer interrupt go
+to CPUINTC directly, CPU UARTS interrupts go to LIOINTC, while all other devices
+interrupts go to PCH-PIC/PCH-LPC/PCH-MSI and gathered by EIOINTC, and then go to
+to CPUINTC directly::
+
+ +-----+ +---------+ +-------+
+ | IPI | --> | CPUINTC | <-- | Timer |
+ +-----+ +---------+ +-------+
+ ^ ^
+ | |
+ +---------+ +---------+ +-------+
+ | EIOINTC | | LIOINTC | <-- | UARTs |
+ +---------+ +---------+ +-------+
+ ^ ^
+ | |
+ +---------+ +---------+
+ | PCH-PIC | | PCH-MSI |
+ +---------+ +---------+
+ ^ ^ ^
+ | | |
+ +---------+ +---------+ +---------+
+ | PCH-LPC | | Devices | | Devices |
+ +---------+ +---------+ +---------+
+ ^
+ |
+ +---------+
+ | Devices |
+ +---------+
+
+Virtual Extended IRQ model
+==========================
+
+In this model, IPI (Inter-Processor Interrupt) and CPU Local Timer interrupt
+go to CPUINTC directly, CPU UARTS interrupts go to PCH-PIC, while all other
+devices interrupts go to PCH-PIC/PCH-MSI and gathered by V-EIOINTC (Virtual
+Extended I/O Interrupt Controller), and then go to CPUINTC directly::
+
+ +-----+ +-------------------+ +-------+
+ | IPI |--> | CPUINTC(0-255vcpu)| <-- | Timer |
+ +-----+ +-------------------+ +-------+
+ ^
+ |
+ +-----------+
+ | V-EIOINTC |
+ +-----------+
+ ^ ^
+ | |
+ +---------+ +---------+
+ | PCH-PIC | | PCH-MSI |
+ +---------+ +---------+
+ ^ ^ ^
+ | | |
+ +--------+ +---------+ +---------+
+ | UARTs | | Devices | | Devices |
+ +--------+ +---------+ +---------+
+
+
+Description
+-----------
+V-EIOINTC (Virtual Extended I/O Interrupt Controller) is an extension of
+EIOINTC, it only works in VM mode which runs in KVM hypervisor. Interrupts can
+be routed to up to four vCPUs via standard EIOINTC, however with V-EIOINTC
+interrupts can be routed to up to 256 virtual cpus.
+
+With standard EIOINTC, interrupt routing setting includes two parts: eight
+bits for CPU selection and four bits for CPU IP (Interrupt Pin) selection.
+For CPU selection there is four bits for EIOINTC node selection, four bits
+for EIOINTC CPU selection. Bitmap method is used for CPU selection and
+CPU IP selection, so interrupt can only route to CPU0 - CPU3 and IP0-IP3 in
+one EIOINTC node.
+
+With V-EIOINTC it supports to route more CPUs and CPU IP (Interrupt Pin),
+there are two newly added registers with V-EIOINTC.
+
+EXTIOI_VIRT_FEATURES
+--------------------
+This register is read-only register, which indicates supported features with
+V-EIOINTC. Feature EXTIOI_HAS_INT_ENCODE and EXTIOI_HAS_CPU_ENCODE is added.
+
+Feature EXTIOI_HAS_INT_ENCODE is part of standard EIOINTC. If it is 1, it
+indicates that CPU Interrupt Pin selection can be normal method rather than
+bitmap method, so interrupt can be routed to IP0 - IP15.
+
+Feature EXTIOI_HAS_CPU_ENCODE is extension of V-EIOINTC. If it is 1, it
+indicates that CPU selection can be normal method rather than bitmap method,
+so interrupt can be routed to CPU0 - CPU255.
+
+EXTIOI_VIRT_CONFIG
+------------------
+This register is read-write register, for compatibility interrupt routed uses
+the default method which is the same with standard EIOINTC. If the bit is set
+with 1, it indicated HW to use normal method rather than bitmap method.
+
+Advanced Extended IRQ model
+===========================
+
+In this model, IPI (Inter-Processor Interrupt) and CPU Local Timer interrupt go
+to CPUINTC directly, CPU UARTS interrupts go to LIOINTC, PCH-MSI interrupts go
+to AVECINTC, and then go to CPUINTC directly, while all other devices interrupts
+go to PCH-PIC/PCH-LPC and gathered by EIOINTC, and then go to CPUINTC directly::
+
+ +-----+ +-----------------------+ +-------+
+ | IPI | --> | CPUINTC | <-- | Timer |
+ +-----+ +-----------------------+ +-------+
+ ^ ^ ^
+ | | |
+ +---------+ +----------+ +---------+ +-------+
+ | EIOINTC | | AVECINTC | | LIOINTC | <-- | UARTs |
+ +---------+ +----------+ +---------+ +-------+
+ ^ ^
+ | |
+ +---------+ +---------+
+ | PCH-PIC | | PCH-MSI |
+ +---------+ +---------+
+ ^ ^ ^
+ | | |
+ +---------+ +---------+ +---------+
+ | Devices | | PCH-LPC | | Devices |
+ +---------+ +---------+ +---------+
+ ^
+ |
+ +---------+
+ | Devices |
+ +---------+
+
+ACPI-related definitions
+========================
+
+CPUINTC::
+
+ ACPI_MADT_TYPE_CORE_PIC;
+ struct acpi_madt_core_pic;
+ enum acpi_madt_core_pic_version;
+
+LIOINTC::
+
+ ACPI_MADT_TYPE_LIO_PIC;
+ struct acpi_madt_lio_pic;
+ enum acpi_madt_lio_pic_version;
+
+EIOINTC::
+
+ ACPI_MADT_TYPE_EIO_PIC;
+ struct acpi_madt_eio_pic;
+ enum acpi_madt_eio_pic_version;
+
+HTVECINTC::
+
+ ACPI_MADT_TYPE_HT_PIC;
+ struct acpi_madt_ht_pic;
+ enum acpi_madt_ht_pic_version;
+
+PCH-PIC::
+
+ ACPI_MADT_TYPE_BIO_PIC;
+ struct acpi_madt_bio_pic;
+ enum acpi_madt_bio_pic_version;
+
+PCH-MSI::
+
+ ACPI_MADT_TYPE_MSI_PIC;
+ struct acpi_madt_msi_pic;
+ enum acpi_madt_msi_pic_version;
+
+PCH-LPC::
+
+ ACPI_MADT_TYPE_LPC_PIC;
+ struct acpi_madt_lpc_pic;
+ enum acpi_madt_lpc_pic_version;
+
+References
+==========
+
+Documentation of Loongson-3A5000:
+
+ https://github.com/loongson/LoongArch-Documentation/releases/latest/download/Loongson-3A5000-usermanual-1.02-CN.pdf (in Chinese)
+
+ https://github.com/loongson/LoongArch-Documentation/releases/latest/download/Loongson-3A5000-usermanual-1.02-EN.pdf (in English)
+
+Documentation of Loongson's LS7A chipset:
+
+ https://github.com/loongson/LoongArch-Documentation/releases/latest/download/Loongson-7A1000-usermanual-2.00-CN.pdf (in Chinese)
+
+ https://github.com/loongson/LoongArch-Documentation/releases/latest/download/Loongson-7A1000-usermanual-2.00-EN.pdf (in English)
+
+.. Note::
+ - CPUINTC is CSR.ECFG/CSR.ESTAT and its interrupt controller described
+ in Section 7.4 of "LoongArch Reference Manual, Vol 1";
+ - LIOINTC is "Legacy I/OInterrupts" described in Section 11.1 of
+ "Loongson 3A5000 Processor Reference Manual";
+ - EIOINTC is "Extended I/O Interrupts" described in Section 11.2 of
+ "Loongson 3A5000 Processor Reference Manual";
+ - HTVECINTC is "HyperTransport Interrupts" described in Section 14.3 of
+ "Loongson 3A5000 Processor Reference Manual";
+ - PCH-PIC/PCH-MSI is "Interrupt Controller" described in Section 5 of
+ "Loongson 7A1000 Bridge User Manual";
+ - PCH-LPC is "LPC Interrupts" described in Section 24.3 of
+ "Loongson 7A1000 Bridge User Manual".
diff --git a/Documentation/arch/m68k/buddha-driver.rst b/Documentation/arch/m68k/buddha-driver.rst
index 20e401413991..5d1bc824978b 100644
--- a/Documentation/arch/m68k/buddha-driver.rst
+++ b/Documentation/arch/m68k/buddha-driver.rst
@@ -173,7 +173,7 @@ When accessing IDE registers with A6=1 (for example $84x),
the timing will always be mode 0 8-bit compatible, no matter
what you have selected in the speed register:
-781ns select, IOR/IOW after 4 clock cycles (=314ns) aktive.
+781ns select, IOR/IOW after 4 clock cycles (=314ns) active.
All the timings with a very short select-signal (the 355ns
fast accesses) depend on the accelerator card used in the
diff --git a/Documentation/arch/m68k/features.rst b/Documentation/arch/m68k/features.rst
index 5107a2119472..de7f0ccf7fc8 100644
--- a/Documentation/arch/m68k/features.rst
+++ b/Documentation/arch/m68k/features.rst
@@ -1,3 +1,3 @@
.. SPDX-License-Identifier: GPL-2.0
-.. kernel-feat:: $srctree/Documentation/features m68k
+.. kernel-feat:: features m68k
diff --git a/Documentation/mips/booting.rst b/Documentation/arch/mips/booting.rst
index 7c18a4eab48b..7c18a4eab48b 100644
--- a/Documentation/mips/booting.rst
+++ b/Documentation/arch/mips/booting.rst
diff --git a/Documentation/arch/mips/features.rst b/Documentation/arch/mips/features.rst
new file mode 100644
index 000000000000..6e0ffe3e7354
--- /dev/null
+++ b/Documentation/arch/mips/features.rst
@@ -0,0 +1,3 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+.. kernel-feat:: features mips
diff --git a/Documentation/mips/index.rst b/Documentation/arch/mips/index.rst
index 037f85a08fe3..037f85a08fe3 100644
--- a/Documentation/mips/index.rst
+++ b/Documentation/arch/mips/index.rst
diff --git a/Documentation/mips/ingenic-tcu.rst b/Documentation/arch/mips/ingenic-tcu.rst
index 2ce4cb1314dc..2ce4cb1314dc 100644
--- a/Documentation/mips/ingenic-tcu.rst
+++ b/Documentation/arch/mips/ingenic-tcu.rst
diff --git a/Documentation/arch/nios2/features.rst b/Documentation/arch/nios2/features.rst
index 8449e63f69b2..89913810ccb5 100644
--- a/Documentation/arch/nios2/features.rst
+++ b/Documentation/arch/nios2/features.rst
@@ -1,3 +1,3 @@
.. SPDX-License-Identifier: GPL-2.0
-.. kernel-feat:: $srctree/Documentation/features nios2
+.. kernel-feat:: features nios2
diff --git a/Documentation/arch/openrisc/features.rst b/Documentation/arch/openrisc/features.rst
index 3f7c40d219f2..bae2e25adfd6 100644
--- a/Documentation/arch/openrisc/features.rst
+++ b/Documentation/arch/openrisc/features.rst
@@ -1,3 +1,3 @@
.. SPDX-License-Identifier: GPL-2.0
-.. kernel-feat:: $srctree/Documentation/features openrisc
+.. kernel-feat:: features openrisc
diff --git a/Documentation/arch/openrisc/openrisc_port.rst b/Documentation/arch/openrisc/openrisc_port.rst
index 657ac4af7be6..60b0a9e51d70 100644
--- a/Documentation/arch/openrisc/openrisc_port.rst
+++ b/Documentation/arch/openrisc/openrisc_port.rst
@@ -7,10 +7,10 @@ target architecture, specifically, is the 32-bit OpenRISC 1000 family (or1k).
For information about OpenRISC processors and ongoing development:
- ======= =============================
+ ======= ==============================
website https://openrisc.io
- email openrisc@lists.librecores.org
- ======= =============================
+ email linux-openrisc@vger.kernel.org
+ ======= ==============================
---------------------------------------------------------------------
@@ -27,11 +27,11 @@ Toolchain binaries can be obtained from openrisc.io or our github releases page.
Instructions for building the different toolchains can be found on openrisc.io
or Stafford's toolchain build and release scripts.
- ========== =================================================
- binaries https://github.com/openrisc/or1k-gcc/releases
+ ========== ==========================================================
+ binaries https://github.com/stffrdhrn/or1k-toolchain-build/releases
toolchains https://openrisc.io/software
building https://github.com/stffrdhrn/or1k-toolchain-build
- ========== =================================================
+ ========== ==========================================================
2) Building
@@ -40,6 +40,12 @@ Build the Linux kernel as usual::
make ARCH=openrisc CROSS_COMPILE="or1k-linux-" defconfig
make ARCH=openrisc CROSS_COMPILE="or1k-linux-"
+If you want to embed initramfs in the kernel, also pass ``CONFIG_INITRAMFS_SOURCE``. For example::
+
+ make ARCH=openrisc CROSS_COMPILE="or1k-linux-" CONFIG_INITRAMFS_SOURCE="path/to/rootfs path/to/devnodes"
+
+For more information on this, please check Documentation/filesystems/ramfs-rootfs-initramfs.rst.
+
3) Running on FPGA (optional)
The OpenRISC community typically uses FuseSoC to manage building and programming
@@ -106,7 +112,7 @@ History
a much improved version with changes all around.
10-04-2004 Matjaz Breskvar (phoenix@bsemi.com)
- alot of bugfixes all over.
+ a lot of bugfixes all over.
ethernet support, functional http and telnet servers.
running many standard linux apps.
@@ -114,7 +120,7 @@ History
port to 2.6.x
30-11-2004 Matjaz Breskvar (phoenix@bsemi.com)
- lots of bugfixes and enhancments.
+ lots of bugfixes and enhancements.
added opencores framebuffer driver.
09-10-2010 Jonas Bonn (jonas@southpole.se)
diff --git a/Documentation/arch/parisc/features.rst b/Documentation/arch/parisc/features.rst
index 501d7c450037..b3aa4d243b93 100644
--- a/Documentation/arch/parisc/features.rst
+++ b/Documentation/arch/parisc/features.rst
@@ -1,3 +1,3 @@
.. SPDX-License-Identifier: GPL-2.0
-.. kernel-feat:: $srctree/Documentation/features parisc
+.. kernel-feat:: features parisc
diff --git a/Documentation/powerpc/associativity.rst b/Documentation/arch/powerpc/associativity.rst
index 4d01c7368561..4d01c7368561 100644
--- a/Documentation/powerpc/associativity.rst
+++ b/Documentation/arch/powerpc/associativity.rst
diff --git a/Documentation/arch/powerpc/booting.rst b/Documentation/arch/powerpc/booting.rst
new file mode 100644
index 000000000000..472e97891aef
--- /dev/null
+++ b/Documentation/arch/powerpc/booting.rst
@@ -0,0 +1,110 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+DeviceTree Booting
+------------------
+
+During the development of the Linux/ppc64 kernel, and more specifically, the
+addition of new platform types outside of the old IBM pSeries/iSeries pair, it
+was decided to enforce some strict rules regarding the kernel entry and
+bootloader <-> kernel interfaces, in order to avoid the degeneration that had
+become the ppc32 kernel entry point and the way a new platform should be added
+to the kernel. The legacy iSeries platform breaks those rules as it predates
+this scheme, but no new board support will be accepted in the main tree that
+doesn't follow them properly. In addition, since the advent of the arch/powerpc
+merged architecture for ppc32 and ppc64, new 32-bit platforms and 32-bit
+platforms which move into arch/powerpc will be required to use these rules as
+well.
+
+The main requirement that will be defined in more detail below is the presence
+of a device-tree whose format is defined after Open Firmware specification.
+However, in order to make life easier to embedded board vendors, the kernel
+doesn't require the device-tree to represent every device in the system and only
+requires some nodes and properties to be present. For example, the kernel does
+not require you to create a node for every PCI device in the system. It is a
+requirement to have a node for PCI host bridges in order to provide interrupt
+routing information and memory/IO ranges, among others. It is also recommended
+to define nodes for on chip devices and other buses that don't specifically fit
+in an existing OF specification. This creates a great flexibility in the way the
+kernel can then probe those and match drivers to device, without having to hard
+code all sorts of tables. It also makes it more flexible for board vendors to do
+minor hardware upgrades without significantly impacting the kernel code or
+cluttering it with special cases.
+
+
+Entry point
+~~~~~~~~~~~
+
+There is one single entry point to the kernel, at the start
+of the kernel image. That entry point supports two calling
+conventions:
+
+ a) Boot from Open Firmware. If your firmware is compatible
+ with Open Firmware (IEEE 1275) or provides an OF compatible
+ client interface API (support for "interpret" callback of
+ forth words isn't required), you can enter the kernel with:
+
+ r5 : OF callback pointer as defined by IEEE 1275
+ bindings to powerpc. Only the 32-bit client interface
+ is currently supported
+
+ r3, r4 : address & length of an initrd if any or 0
+
+ The MMU is either on or off; the kernel will run the
+ trampoline located in arch/powerpc/kernel/prom_init.c to
+ extract the device-tree and other information from open
+ firmware and build a flattened device-tree as described
+ in b). prom_init() will then re-enter the kernel using
+ the second method. This trampoline code runs in the
+ context of the firmware, which is supposed to handle all
+ exceptions during that time.
+
+ b) Direct entry with a flattened device-tree block. This entry
+ point is called by a) after the OF trampoline and can also be
+ called directly by a bootloader that does not support the Open
+ Firmware client interface. It is also used by "kexec" to
+ implement "hot" booting of a new kernel from a previous
+ running one. This method is what I will describe in more
+ details in this document, as method a) is simply standard Open
+ Firmware, and thus should be implemented according to the
+ various standard documents defining it and its binding to the
+ PowerPC platform. The entry point definition then becomes:
+
+ r3 : physical pointer to the device-tree block
+ (defined in chapter II) in RAM
+
+ r4 : physical pointer to the kernel itself. This is
+ used by the assembly code to properly disable the MMU
+ in case you are entering the kernel with MMU enabled
+ and a non-1:1 mapping.
+
+ r5 : NULL (as to differentiate with method a)
+
+Note about SMP entry: Either your firmware puts your other
+CPUs in some sleep loop or spin loop in ROM where you can get
+them out via a soft reset or some other means, in which case
+you don't need to care, or you'll have to enter the kernel
+with all CPUs. The way to do that with method b) will be
+described in a later revision of this document.
+
+Board supports (platforms) are not exclusive config options. An
+arbitrary set of board supports can be built in a single kernel
+image. The kernel will "know" what set of functions to use for a
+given platform based on the content of the device-tree. Thus, you
+should:
+
+ a) add your platform support as a _boolean_ option in
+ arch/powerpc/Kconfig, following the example of PPC_PSERIES
+ and PPC_PMAC. The latter is probably a good
+ example of a board support to start from.
+
+ b) create your main platform file as
+ "arch/powerpc/platforms/myplatform/myboard_setup.c" and add it
+ to the Makefile under the condition of your ``CONFIG_``
+ option. This file will define a structure of type "ppc_md"
+ containing the various callbacks that the generic code will
+ use to get to your platform specific code
+
+A kernel image may support multiple platforms, but only if the
+platforms feature the same core architecture. A single kernel build
+cannot support both configurations with Book E and configurations
+with classic Powerpc architectures.
diff --git a/Documentation/powerpc/bootwrapper.rst b/Documentation/arch/powerpc/bootwrapper.rst
index cdfa2bc8425f..cdfa2bc8425f 100644
--- a/Documentation/powerpc/bootwrapper.rst
+++ b/Documentation/arch/powerpc/bootwrapper.rst
diff --git a/Documentation/powerpc/cpu_families.rst b/Documentation/arch/powerpc/cpu_families.rst
index eb7e60649b43..f55433c6b8f3 100644
--- a/Documentation/powerpc/cpu_families.rst
+++ b/Documentation/arch/powerpc/cpu_families.rst
@@ -128,24 +128,6 @@ IBM BookE
- All 32 bit::
+--------------+
- | 401 |
- +--------------+
- |
- |
- v
- +--------------+
- | 403 |
- +--------------+
- |
- |
- v
- +--------------+
- | 405 |
- +--------------+
- |
- |
- v
- +--------------+
| 440 |
+--------------+
|
diff --git a/Documentation/powerpc/cpu_features.rst b/Documentation/arch/powerpc/cpu_features.rst
index b7bcdd2f41bb..b7bcdd2f41bb 100644
--- a/Documentation/powerpc/cpu_features.rst
+++ b/Documentation/arch/powerpc/cpu_features.rst
diff --git a/Documentation/powerpc/dawr-power9.rst b/Documentation/arch/powerpc/dawr-power9.rst
index 310f2e0cea81..310f2e0cea81 100644
--- a/Documentation/powerpc/dawr-power9.rst
+++ b/Documentation/arch/powerpc/dawr-power9.rst
diff --git a/Documentation/arch/powerpc/dexcr.rst b/Documentation/arch/powerpc/dexcr.rst
new file mode 100644
index 000000000000..ab0724212fcd
--- /dev/null
+++ b/Documentation/arch/powerpc/dexcr.rst
@@ -0,0 +1,195 @@
+.. SPDX-License-Identifier: GPL-2.0-or-later
+
+==========================================
+DEXCR (Dynamic Execution Control Register)
+==========================================
+
+Overview
+========
+
+The DEXCR is a privileged special purpose register (SPR) introduced in
+PowerPC ISA 3.1B (Power10) that allows per-cpu control over several dynamic
+execution behaviours. These behaviours include speculation (e.g., indirect
+branch target prediction) and enabling return-oriented programming (ROP)
+protection instructions.
+
+The execution control is exposed in hardware as up to 32 bits ('aspects') in
+the DEXCR. Each aspect controls a certain behaviour, and can be set or cleared
+to enable/disable the aspect. There are several variants of the DEXCR for
+different purposes:
+
+DEXCR
+ A privileged SPR that can control aspects for userspace and kernel space
+HDEXCR
+ A hypervisor-privileged SPR that can control aspects for the hypervisor and
+ enforce aspects for the kernel and userspace.
+UDEXCR
+ An optional ultravisor-privileged SPR that can control aspects for the ultravisor.
+
+Userspace can examine the current DEXCR state using a dedicated SPR that
+provides a non-privileged read-only view of the userspace DEXCR aspects.
+There is also an SPR that provides a read-only view of the hypervisor enforced
+aspects, which ORed with the userspace DEXCR view gives the effective DEXCR
+state for a process.
+
+
+Configuration
+=============
+
+prctl
+-----
+
+A process can control its own userspace DEXCR value using the
+``PR_PPC_GET_DEXCR`` and ``PR_PPC_SET_DEXCR`` pair of
+:manpage:`prctl(2)` commands. These calls have the form::
+
+ prctl(PR_PPC_GET_DEXCR, unsigned long which, 0, 0, 0);
+ prctl(PR_PPC_SET_DEXCR, unsigned long which, unsigned long ctrl, 0, 0);
+
+The possible 'which' and 'ctrl' values are as follows. Note there is no relation
+between the 'which' value and the DEXCR aspect's index.
+
+.. flat-table::
+ :header-rows: 1
+ :widths: 2 7 1
+
+ * - ``prctl()`` which
+ - Aspect name
+ - Aspect index
+
+ * - ``PR_PPC_DEXCR_SBHE``
+ - Speculative Branch Hint Enable (SBHE)
+ - 0
+
+ * - ``PR_PPC_DEXCR_IBRTPD``
+ - Indirect Branch Recurrent Target Prediction Disable (IBRTPD)
+ - 3
+
+ * - ``PR_PPC_DEXCR_SRAPD``
+ - Subroutine Return Address Prediction Disable (SRAPD)
+ - 4
+
+ * - ``PR_PPC_DEXCR_NPHIE``
+ - Non-Privileged Hash Instruction Enable (NPHIE)
+ - 5
+
+.. flat-table::
+ :header-rows: 1
+ :widths: 2 8
+
+ * - ``prctl()`` ctrl
+ - Meaning
+
+ * - ``PR_PPC_DEXCR_CTRL_EDITABLE``
+ - This aspect can be configured with PR_PPC_SET_DEXCR (get only)
+
+ * - ``PR_PPC_DEXCR_CTRL_SET``
+ - This aspect is set / set this aspect
+
+ * - ``PR_PPC_DEXCR_CTRL_CLEAR``
+ - This aspect is clear / clear this aspect
+
+ * - ``PR_PPC_DEXCR_CTRL_SET_ONEXEC``
+ - This aspect will be set after exec / set this aspect after exec
+
+ * - ``PR_PPC_DEXCR_CTRL_CLEAR_ONEXEC``
+ - This aspect will be clear after exec / clear this aspect after exec
+
+Note that
+
+* which is a plain value, not a bitmask. Aspects must be worked with individually.
+
+* ctrl is a bitmask. ``PR_PPC_GET_DEXCR`` returns both the current and onexec
+ configuration. For example, ``PR_PPC_GET_DEXCR`` may return
+ ``PR_PPC_DEXCR_CTRL_EDITABLE | PR_PPC_DEXCR_CTRL_SET |
+ PR_PPC_DEXCR_CTRL_CLEAR_ONEXEC``. This would indicate the aspect is currently
+ set, it will be cleared when you run exec, and you can change this with the
+ ``PR_PPC_SET_DEXCR`` prctl.
+
+* The set/clear terminology refers to setting/clearing the bit in the DEXCR.
+ For example::
+
+ prctl(PR_PPC_SET_DEXCR, PR_PPC_DEXCR_IBRTPD, PR_PPC_DEXCR_CTRL_SET, 0, 0);
+
+ will set the IBRTPD aspect bit in the DEXCR, causing indirect branch prediction
+ to be disabled.
+
+* The status returned by ``PR_PPC_GET_DEXCR`` represents what value the process
+ would like applied. It does not include any alternative overrides, such as if
+ the hypervisor is enforcing the aspect be set. To see the true DEXCR state
+ software should read the appropriate SPRs directly.
+
+* The aspect state when starting a process is copied from the parent's state on
+ :manpage:`fork(2)`. The state is reset to a fixed value on
+ :manpage:`execve(2)`. The PR_PPC_SET_DEXCR prctl() can control both of these
+ values.
+
+* The ``*_ONEXEC`` controls do not change the current process's DEXCR.
+
+Use ``PR_PPC_SET_DEXCR`` with one of ``PR_PPC_DEXCR_CTRL_SET`` or
+``PR_PPC_DEXCR_CTRL_CLEAR`` to edit a given aspect.
+
+Common error codes for both getting and setting the DEXCR are as follows:
+
+.. flat-table::
+ :header-rows: 1
+ :widths: 2 8
+
+ * - Error
+ - Meaning
+
+ * - ``EINVAL``
+ - The DEXCR is not supported by the kernel.
+
+ * - ``ENODEV``
+ - The aspect is not recognised by the kernel or not supported by the
+ hardware.
+
+``PR_PPC_SET_DEXCR`` may also report the following error codes:
+
+.. flat-table::
+ :header-rows: 1
+ :widths: 2 8
+
+ * - Error
+ - Meaning
+
+ * - ``EINVAL``
+ - The ctrl value contains unrecognised flags.
+
+ * - ``EINVAL``
+ - The ctrl value contains mutually conflicting flags (e.g.,
+ ``PR_PPC_DEXCR_CTRL_SET | PR_PPC_DEXCR_CTRL_CLEAR``)
+
+ * - ``EPERM``
+ - This aspect cannot be modified with prctl() (check for the
+ PR_PPC_DEXCR_CTRL_EDITABLE flag with PR_PPC_GET_DEXCR).
+
+ * - ``EPERM``
+ - The process does not have sufficient privilege to perform the operation.
+ For example, clearing NPHIE on exec is a privileged operation (a process
+ can still clear its own NPHIE aspect without privileges).
+
+This interface allows a process to control its own DEXCR aspects, and also set
+the initial DEXCR value for any children in its process tree (up to the next
+child to use an ``*_ONEXEC`` control). This allows fine-grained control over the
+default value of the DEXCR, for example allowing containers to run with different
+default values.
+
+
+coredump and ptrace
+===================
+
+The userspace values of the DEXCR and HDEXCR (in this order) are exposed under
+``NT_PPC_DEXCR``. These are each 64 bits and readonly, and are intended to
+assist with core dumps. The DEXCR may be made writable in future. The top 32
+bits of both registers (corresponding to the non-userspace bits) are masked off.
+
+If the kernel config ``CONFIG_CHECKPOINT_RESTORE`` is enabled, then
+``NT_PPC_HASHKEYR`` is available and exposes the HASHKEYR value of the process
+for reading and writing. This is a tradeoff between increased security and
+checkpoint/restore support: a process should normally have no need to know its
+secret key, but restoring a process requires setting its original key. The key
+therefore appears in core dumps, and an attacker may be able to retrieve it from
+a coredump and effectively bypass ROP protection on any threads that share this
+key (potentially all threads from the same parent that have not run ``exec()``).
diff --git a/Documentation/powerpc/dscr.rst b/Documentation/arch/powerpc/dscr.rst
index 2ab99006014c..f735ec5375d5 100644
--- a/Documentation/powerpc/dscr.rst
+++ b/Documentation/arch/powerpc/dscr.rst
@@ -6,7 +6,7 @@ DSCR register in powerpc allows user to have some control of prefetch of data
stream in the processor. Please refer to the ISA documents or related manual
for more detailed information regarding how to use this DSCR to attain this
control of the prefetches . This document here provides an overview of kernel
-support for DSCR, related kernel objects, it's functionalities and exported
+support for DSCR, related kernel objects, its functionalities and exported
user interface.
(A) Data Structures:
diff --git a/Documentation/powerpc/eeh-pci-error-recovery.rst b/Documentation/arch/powerpc/eeh-pci-error-recovery.rst
index d6643a91bdf8..153d0af055b6 100644
--- a/Documentation/powerpc/eeh-pci-error-recovery.rst
+++ b/Documentation/arch/powerpc/eeh-pci-error-recovery.rst
@@ -315,7 +315,6 @@ network daemons and file systems that didn't need to be disturbed.
ideally, the reset should happen at or below the block layer,
so that the file systems are not disturbed.
- Reiserfs does not tolerate errors returned from the block device.
Ext3fs seems to be tolerant, retrying reads/writes until it does
succeed. Both have been only lightly tested in this scenario.
diff --git a/Documentation/arch/powerpc/elf_hwcaps.rst b/Documentation/arch/powerpc/elf_hwcaps.rst
new file mode 100644
index 000000000000..fce7489877b5
--- /dev/null
+++ b/Documentation/arch/powerpc/elf_hwcaps.rst
@@ -0,0 +1,232 @@
+.. _elf_hwcaps_powerpc:
+
+==================
+POWERPC ELF HWCAPs
+==================
+
+This document describes the usage and semantics of the powerpc ELF HWCAPs.
+
+
+1. Introduction
+---------------
+
+Some hardware or software features are only available on some CPU
+implementations, and/or with certain kernel configurations, but have no other
+discovery mechanism available to userspace code. The kernel exposes the
+presence of these features to userspace through a set of flags called HWCAPs,
+exposed in the auxiliary vector.
+
+Userspace software can test for features by acquiring the AT_HWCAP or
+AT_HWCAP2 entry of the auxiliary vector, and testing whether the relevant
+flags are set, e.g.::
+
+ bool floating_point_is_present(void)
+ {
+ unsigned long HWCAPs = getauxval(AT_HWCAP);
+ if (HWCAPs & PPC_FEATURE_HAS_FPU)
+ return true;
+
+ return false;
+ }
+
+Where software relies on a feature described by a HWCAP, it should check the
+relevant HWCAP flag to verify that the feature is present before attempting to
+make use of the feature.
+
+HWCAP is the preferred method to test for the presence of a feature rather
+than probing through other means, which may not be reliable or may cause
+unpredictable behaviour.
+
+Software that targets a particular platform does not necessarily have to
+test for required or implied features. For example if the program requires
+FPU, VMX, VSX, it is not necessary to test those HWCAPs, and it may be
+impossible to do so if the compiler generates code requiring those features.
+
+2. Facilities
+-------------
+
+The Power ISA uses the term "facility" to describe a class of instructions,
+registers, interrupts, etc. The presence or absence of a facility indicates
+whether this class is available to be used, but the specifics depend on the
+ISA version. For example, if the VSX facility is available, the VSX
+instructions that can be used differ between the v3.0B and v3.1B ISA
+versions.
+
+3. Categories
+-------------
+
+The Power ISA before v3.0 uses the term "category" to describe certain
+classes of instructions and operating modes which may be optional or
+mutually exclusive, the exact meaning of the HWCAP flag may depend on
+context, e.g., the presence of the BOOKE feature implies that the server
+category is not implemented.
+
+4. HWCAP allocation
+-------------------
+
+HWCAPs are allocated as described in Power Architecture 64-Bit ELF V2 ABI
+Specification (which will be reflected in the kernel's uapi headers).
+
+5. The HWCAPs exposed in AT_HWCAP
+---------------------------------
+
+PPC_FEATURE_32
+ 32-bit CPU
+
+PPC_FEATURE_64
+ 64-bit CPU (userspace may be running in 32-bit mode).
+
+PPC_FEATURE_601_INSTR
+ The processor is PowerPC 601.
+ Unused in the kernel since f0ed73f3fa2c ("powerpc: Remove PowerPC 601")
+
+PPC_FEATURE_HAS_ALTIVEC
+ Vector (aka Altivec, VMX) facility is available.
+
+PPC_FEATURE_HAS_FPU
+ Floating point facility is available.
+
+PPC_FEATURE_HAS_MMU
+ Memory management unit is present and enabled.
+
+PPC_FEATURE_HAS_4xxMAC
+ The processor is 40x or 44x family.
+ Unused in the kernel since 732b32daef80 ("powerpc: Remove core support for 40x")
+
+PPC_FEATURE_UNIFIED_CACHE
+ The processor has a unified L1 cache for instructions and data, as
+ found in NXP e200.
+ Unused in the kernel since 39c8bf2b3cc1 ("powerpc: Retire e200 core (mpc555x processor)")
+
+PPC_FEATURE_HAS_SPE
+ Signal Processing Engine facility is available.
+
+PPC_FEATURE_HAS_EFP_SINGLE
+ Embedded Floating Point single precision operations are available.
+
+PPC_FEATURE_HAS_EFP_DOUBLE
+ Embedded Floating Point double precision operations are available.
+
+PPC_FEATURE_NO_TB
+ The timebase facility (mftb instruction) is not available.
+ This is a 601 specific HWCAP, so if it is known that the processor
+ running is not a 601, via other HWCAPs or other means, it is not
+ required to test this bit before using the timebase.
+ Unused in the kernel since f0ed73f3fa2c ("powerpc: Remove PowerPC 601")
+
+PPC_FEATURE_POWER4
+ The processor is POWER4 or PPC970/FX/MP.
+ POWER4 support dropped from the kernel since 471d7ff8b51b ("powerpc/64s: Remove POWER4 support")
+
+PPC_FEATURE_POWER5
+ The processor is POWER5.
+
+PPC_FEATURE_POWER5_PLUS
+ The processor is POWER5+.
+
+PPC_FEATURE_CELL
+ The processor is Cell.
+
+PPC_FEATURE_BOOKE
+ The processor implements the embedded category ("BookE") architecture.
+
+PPC_FEATURE_SMT
+ The processor implements SMT.
+
+PPC_FEATURE_ICACHE_SNOOP
+ The processor icache is coherent with the dcache, and instruction storage
+ can be made consistent with data storage for the purpose of executing
+ instructions with the sequence (as described in, e.g., POWER9 Processor
+ User's Manual, 4.6.2.2 Instruction Cache Block Invalidate (icbi))::
+
+ sync
+ icbi (to any address)
+ isync
+
+PPC_FEATURE_ARCH_2_05
+ The processor supports the v2.05 userlevel architecture. Processors
+ supporting later architectures DO NOT set this feature.
+
+PPC_FEATURE_PA6T
+ The processor is PA6T.
+
+PPC_FEATURE_HAS_DFP
+ DFP facility is available.
+
+PPC_FEATURE_POWER6_EXT
+ The processor is POWER6.
+
+PPC_FEATURE_ARCH_2_06
+ The processor supports the v2.06 userlevel architecture. Processors
+ supporting later architectures also set this feature.
+
+PPC_FEATURE_HAS_VSX
+ VSX facility is available.
+
+PPC_FEATURE_PSERIES_PERFMON_COMPAT
+ The processor supports architected PMU events in the range 0xE0-0xFF.
+
+PPC_FEATURE_TRUE_LE
+ The processor supports true little-endian mode.
+
+PPC_FEATURE_PPC_LE
+ The processor supports "PowerPC Little-Endian", that uses address
+ munging to make storage access appear to be little-endian, but the
+ data is stored in a different format that is unsuitable to be
+ accessed by other agents not running in this mode.
+
+6. The HWCAPs exposed in AT_HWCAP2
+----------------------------------
+
+PPC_FEATURE2_ARCH_2_07
+ The processor supports the v2.07 userlevel architecture. Processors
+ supporting later architectures also set this feature.
+
+PPC_FEATURE2_HTM
+ Transactional Memory feature is available.
+
+PPC_FEATURE2_DSCR
+ DSCR facility is available.
+
+PPC_FEATURE2_EBB
+ EBB facility is available.
+
+PPC_FEATURE2_ISEL
+ isel instruction is available. This is superseded by ARCH_2_07 and
+ later.
+
+PPC_FEATURE2_TAR
+ TAR facility is available.
+
+PPC_FEATURE2_VEC_CRYPTO
+ v2.07 crypto instructions are available.
+
+PPC_FEATURE2_HTM_NOSC
+ System calls fail if called in a transactional state, see
+ Documentation/arch/powerpc/syscall64-abi.rst
+
+PPC_FEATURE2_ARCH_3_00
+ The processor supports the v3.0B / v3.0C userlevel architecture. Processors
+ supporting later architectures also set this feature.
+
+PPC_FEATURE2_HAS_IEEE128
+ IEEE 128-bit binary floating point is supported with VSX
+ quad-precision instructions and data types.
+
+PPC_FEATURE2_DARN
+ darn instruction is available.
+
+PPC_FEATURE2_SCV
+ The scv 0 instruction may be used for system calls, see
+ Documentation/arch/powerpc/syscall64-abi.rst.
+
+PPC_FEATURE2_HTM_NO_SUSPEND
+ A limited Transactional Memory facility that does not support suspend is
+ available, see Documentation/arch/powerpc/transactional_memory.rst.
+
+PPC_FEATURE2_ARCH_3_1
+ The processor supports the v3.1 userlevel architecture. Processors
+ supporting later architectures also set this feature.
+
+PPC_FEATURE2_MMA
+ MMA facility is available.
diff --git a/Documentation/powerpc/elfnote.rst b/Documentation/arch/powerpc/elfnote.rst
index 3ec8d61e9a33..3ec8d61e9a33 100644
--- a/Documentation/powerpc/elfnote.rst
+++ b/Documentation/arch/powerpc/elfnote.rst
diff --git a/Documentation/arch/powerpc/features.rst b/Documentation/arch/powerpc/features.rst
new file mode 100644
index 000000000000..ee4b95e04202
--- /dev/null
+++ b/Documentation/arch/powerpc/features.rst
@@ -0,0 +1,3 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+.. kernel-feat:: features powerpc
diff --git a/Documentation/powerpc/firmware-assisted-dump.rst b/Documentation/arch/powerpc/firmware-assisted-dump.rst
index e363fc48529a..7e266e749cd5 100644
--- a/Documentation/powerpc/firmware-assisted-dump.rst
+++ b/Documentation/arch/powerpc/firmware-assisted-dump.rst
@@ -120,6 +120,28 @@ to ensure that crash data is preserved to process later.
e.g.
# echo 1 > /sys/firmware/opal/mpipl/release_core
+-- Support for Additional Kernel Arguments in Fadump
+ Fadump has a feature that allows passing additional kernel arguments
+ to the fadump kernel. This feature was primarily designed to disable
+ kernel functionalities that are not required for the fadump kernel
+ and to reduce its memory footprint while collecting the dump.
+
+ Command to Add Additional Kernel Parameters to Fadump:
+ e.g.
+ # echo "nr_cpus=16" > /sys/kernel/fadump/bootargs_append
+
+ The above command is sufficient to add additional arguments to fadump.
+ An explicit service restart is not required.
+
+ Command to Retrieve the Additional Fadump Arguments:
+ e.g.
+ # cat /sys/kernel/fadump/bootargs_append
+
+Note: Additional kernel arguments for fadump with HASH MMU is only
+ supported if the RMA size is greater than 768 MB. If the RMA
+ size is less than 768 MB, the kernel does not export the
+ /sys/kernel/fadump/bootargs_append sysfs node.
+
Implementation details:
-----------------------
@@ -134,12 +156,12 @@ that are run. If there is dump data, then the
memory is held.
If there is no waiting dump data, then only the memory required to
-hold CPU state, HPTE region, boot memory dump, FADump header and
-elfcore header, is usually reserved at an offset greater than boot
-memory size (see Fig. 1). This area is *not* released: this region
-will be kept permanently reserved, so that it can act as a receptacle
-for a copy of the boot memory content in addition to CPU state and
-HPTE region, in the case a crash does occur.
+hold CPU state, HPTE region, boot memory dump, and FADump header is
+usually reserved at an offset greater than boot memory size (see Fig. 1).
+This area is *not* released: this region will be kept permanently
+reserved, so that it can act as a receptacle for a copy of the boot
+memory content in addition to CPU state and HPTE region, in the case
+a crash does occur.
Since this reserved memory area is used only after the system crash,
there is no point in blocking this significant chunk of memory from
@@ -153,22 +175,22 @@ that were present in CMA region::
o Memory Reservation during first kernel
- Low memory Top of memory
- 0 boot memory size |<--- Reserved dump area --->| |
- | | | Permanent Reservation | |
- V V | | V
- +-----------+-----/ /---+---+----+-------+-----+-----+----+--+
- | | |///|////| DUMP | HDR | ELF |////| |
- +-----------+-----/ /---+---+----+-------+-----+-----+----+--+
- | ^ ^ ^ ^ ^
- | | | | | |
- \ CPU HPTE / | |
- ------------------------------ | |
- Boot memory content gets transferred | |
- to reserved area by firmware at the | |
- time of crash. | |
- FADump Header |
- (meta area) |
+ Low memory Top of memory
+ 0 boot memory size |<------ Reserved dump area ----->| |
+ | | | Permanent Reservation | |
+ V V | | V
+ +-----------+-----/ /---+---+----+-----------+-------+----+-----+
+ | | |///|////| DUMP | HDR |////| |
+ +-----------+-----/ /---+---+----+-----------+-------+----+-----+
+ | ^ ^ ^ ^ ^
+ | | | | | |
+ \ CPU HPTE / | |
+ -------------------------------- | |
+ Boot memory content gets transferred | |
+ to reserved area by firmware at the | |
+ time of crash. | |
+ FADump Header |
+ (meta area) |
|
|
Metadata: This area holds a metadata structure whose
@@ -186,13 +208,20 @@ that were present in CMA region::
0 boot memory size |
| |<------------ Crash preserved area ------------>|
V V |<--- Reserved dump area --->| |
- +-----------+-----/ /---+---+----+-------+-----+-----+----+--+
- | | |///|////| DUMP | HDR | ELF |////| |
- +-----------+-----/ /---+---+----+-------+-----+-----+----+--+
- | |
- V V
- Used by second /proc/vmcore
- kernel to boot
+ +----+---+--+-----/ /---+---+----+-------+-----+-----+-------+
+ | |ELF| | |///|////| DUMP | HDR |/////| |
+ +----+---+--+-----/ /---+---+----+-------+-----+-----+-------+
+ | | | | | |
+ ----- ------------------------------ ---------------
+ \ | |
+ \ | |
+ \ | |
+ \ | ----------------------------
+ \ | /
+ \ | /
+ \ | /
+ /proc/vmcore
+
+---+
|///| -> Regions (CPU, HPTE & Metadata) marked like this in the above
@@ -200,6 +229,12 @@ that were present in CMA region::
does not have CPU & HPTE regions while Metadata region is
not supported on pSeries currently.
+ +---+
+ |ELF| -> elfcorehdr, it is created in second kernel after crash.
+ +---+
+
+ Note: Memory from 0 to the boot memory size is used by second kernel
+
Fig. 2
@@ -353,26 +388,6 @@ TODO:
- Need to come up with the better approach to find out more
accurate boot memory size that is required for a kernel to
boot successfully when booted with restricted memory.
- - The FADump implementation introduces a FADump crash info structure
- in the scratch area before the ELF core header. The idea of introducing
- this structure is to pass some important crash info data to the second
- kernel which will help second kernel to populate ELF core header with
- correct data before it gets exported through /proc/vmcore. The current
- design implementation does not address a possibility of introducing
- additional fields (in future) to this structure without affecting
- compatibility. Need to come up with the better approach to address this.
-
- The possible approaches are:
-
- 1. Introduce version field for version tracking, bump up the version
- whenever a new field is added to the structure in future. The version
- field can be used to find out what fields are valid for the current
- version of the structure.
- 2. Reserve the area of predefined size (say PAGE_SIZE) for this
- structure and have unused area as reserved (initialized to zero)
- for future field additions.
-
- The advantage of approach 1 over 2 is we don't need to reserve extra space.
Author: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
diff --git a/Documentation/arch/powerpc/htm.rst b/Documentation/arch/powerpc/htm.rst
new file mode 100644
index 000000000000..fcb4eb6306b1
--- /dev/null
+++ b/Documentation/arch/powerpc/htm.rst
@@ -0,0 +1,104 @@
+.. SPDX-License-Identifier: GPL-2.0
+.. _htm:
+
+===================================
+HTM (Hardware Trace Macro)
+===================================
+
+Athira Rajeev, 2 Mar 2025
+
+.. contents::
+ :depth: 3
+
+
+Basic overview
+==============
+
+H_HTM is used as an interface for executing Hardware Trace Macro (HTM)
+functions, including setup, configuration, control and dumping of the HTM data.
+For using HTM, it is required to setup HTM buffers and HTM operations can
+be controlled using the H_HTM hcall. The hcall can be invoked for any core/chip
+of the system from within a partition itself. To use this feature, a debugfs
+folder called "htmdump" is present under /sys/kernel/debug/powerpc.
+
+
+HTM debugfs example usage
+=========================
+
+.. code-block:: sh
+
+ # ls /sys/kernel/debug/powerpc/htmdump/
+ coreindexonchip htmcaps htmconfigure htmflags htminfo htmsetup
+ htmstart htmstatus htmtype nodalchipindex nodeindex trace
+
+Details on each file:
+
+* nodeindex, nodalchipindex, coreindexonchip specifies which partition to configure the HTM for.
+* htmtype: specifies the type of HTM. Supported target is hardwareTarget.
+* trace: is to read the HTM data.
+* htmconfigure: Configure/Deconfigure the HTM. Writing 1 to the file will configure the trace, writing 0 to the file will do deconfigure.
+* htmstart: start/Stop the HTM. Writing 1 to the file will start the tracing, writing 0 to the file will stop the tracing.
+* htmstatus: get the status of HTM. This is needed to understand the HTM state after each operation.
+* htmsetup: set the HTM buffer size. Size of HTM buffer is in power of 2
+* htminfo: provides the system processor configuration details. This is needed to understand the appropriate values for nodeindex, nodalchipindex, coreindexonchip.
+* htmcaps : provides the HTM capabilities like minimum/maximum buffer size, what kind of tracing the HTM supports etc.
+* htmflags : allows to pass flags to hcall. Currently supports controlling the wrapping of HTM buffer.
+
+To see the system processor configuration details:
+
+.. code-block:: sh
+
+ # cat /sys/kernel/debug/powerpc/htmdump/htminfo > htminfo_file
+
+The result can be interpreted using hexdump.
+
+To collect HTM traces for a partition represented by nodeindex as
+zero, nodalchipindex as 1 and coreindexonchip as 12
+
+.. code-block:: sh
+
+ # cd /sys/kernel/debug/powerpc/htmdump/
+ # echo 2 > htmtype
+ # echo 33 > htmsetup ( sets 8GB memory for HTM buffer, number is size in power of 2 )
+
+This requires a CEC reboot to get the HTM buffers allocated.
+
+.. code-block:: sh
+
+ # cd /sys/kernel/debug/powerpc/htmdump/
+ # echo 2 > htmtype
+ # echo 0 > nodeindex
+ # echo 1 > nodalchipindex
+ # echo 12 > coreindexonchip
+ # echo 1 > htmflags # to set noWrap for HTM buffers
+ # echo 1 > htmconfigure # Configure the HTM
+ # echo 1 > htmstart # Start the HTM
+ # echo 0 > htmstart # Stop the HTM
+ # echo 0 > htmconfigure # Deconfigure the HTM
+ # cat htmstatus # Dump the status of HTM entries as data
+
+Above will set the htmtype and core details, followed by executing respective HTM operation.
+
+Read the HTM trace data
+========================
+
+After starting the trace collection, run the workload
+of interest. Stop the trace collection after required period
+of time, and read the trace file.
+
+.. code-block:: sh
+
+ # cat /sys/kernel/debug/powerpc/htmdump/trace > trace_file
+
+This trace file will contain the relevant instruction traces
+collected during the workload execution. And can be used as
+input file for trace decoders to understand data.
+
+Benefits of using HTM debugfs interface
+=======================================
+
+It is now possible to collect traces for a particular core/chip
+from within any partition of the system and decode it. Through
+this enablement, a small partition can be dedicated to collect the
+trace data and analyze to provide important information for Performance
+analysis, Software tuning, or Hardware debug.
diff --git a/Documentation/powerpc/hvcs.rst b/Documentation/arch/powerpc/hvcs.rst
index 6808acde672f..6808acde672f 100644
--- a/Documentation/powerpc/hvcs.rst
+++ b/Documentation/arch/powerpc/hvcs.rst
diff --git a/Documentation/powerpc/imc.rst b/Documentation/arch/powerpc/imc.rst
index 633bcee7dc85..633bcee7dc85 100644
--- a/Documentation/powerpc/imc.rst
+++ b/Documentation/arch/powerpc/imc.rst
diff --git a/Documentation/arch/powerpc/index.rst b/Documentation/arch/powerpc/index.rst
new file mode 100644
index 000000000000..1be2ee3f0361
--- /dev/null
+++ b/Documentation/arch/powerpc/index.rst
@@ -0,0 +1,49 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=======
+powerpc
+=======
+
+.. toctree::
+ :maxdepth: 1
+
+ associativity
+ booting
+ bootwrapper
+ cpu_families
+ cpu_features
+ dawr-power9
+ dexcr
+ dscr
+ eeh-pci-error-recovery
+ elf_hwcaps
+ elfnote
+ firmware-assisted-dump
+ htm
+ hvcs
+ imc
+ isa-versions
+ kaslr-booke32
+ mpc52xx
+ kvm-nested
+ papr_hcalls
+ pci_iov_resource_on_powernv
+ pmu-ebb
+ ptrace
+ qe_firmware
+ syscall64-abi
+ transactional_memory
+ ultravisor
+ vas-api
+ vcpudispatch_stats
+ vmemmap_dedup
+ vpa-dtl
+
+ features
+
+.. only:: subproject and html
+
+ Indices
+ =======
+
+ * :ref:`genindex`
diff --git a/Documentation/powerpc/isa-versions.rst b/Documentation/arch/powerpc/isa-versions.rst
index a8d6b6028b3e..a8d6b6028b3e 100644
--- a/Documentation/powerpc/isa-versions.rst
+++ b/Documentation/arch/powerpc/isa-versions.rst
diff --git a/Documentation/powerpc/kasan.txt b/Documentation/arch/powerpc/kasan.txt
index f032b4eaf205..a4f647e4fffa 100644
--- a/Documentation/powerpc/kasan.txt
+++ b/Documentation/arch/powerpc/kasan.txt
@@ -40,7 +40,7 @@ checks can be delayed until after the MMU is set is up, and we can just not
instrument any code that runs with translations off after booting. This is the
current approach.
-To avoid this limitiation, the KASAN shadow would have to be placed inside the
+To avoid this limitation, the KASAN shadow would have to be placed inside the
linear mapping, using the same high-bits trick we use for the rest of the linear
mapping. This is tricky:
diff --git a/Documentation/powerpc/kaslr-booke32.rst b/Documentation/arch/powerpc/kaslr-booke32.rst
index 5681c1d1b65b..5681c1d1b65b 100644
--- a/Documentation/powerpc/kaslr-booke32.rst
+++ b/Documentation/arch/powerpc/kaslr-booke32.rst
diff --git a/Documentation/arch/powerpc/kvm-nested.rst b/Documentation/arch/powerpc/kvm-nested.rst
new file mode 100644
index 000000000000..574592505604
--- /dev/null
+++ b/Documentation/arch/powerpc/kvm-nested.rst
@@ -0,0 +1,656 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+====================================
+Nested KVM on POWER
+====================================
+
+Introduction
+============
+
+This document explains how a guest operating system can act as a
+hypervisor and run nested guests through the use of hypercalls, if the
+hypervisor has implemented them. The terms L0, L1, and L2 are used to
+refer to different software entities. L0 is the hypervisor mode entity
+that would normally be called the "host" or "hypervisor". L1 is a
+guest virtual machine that is directly run under L0 and is initiated
+and controlled by L0. L2 is a guest virtual machine that is initiated
+and controlled by L1 acting as a hypervisor.
+
+Existing API
+============
+
+Linux/KVM has had support for Nesting as an L0 or L1 since 2018
+
+The L0 code was added::
+
+ commit 8e3f5fc1045dc49fd175b978c5457f5f51e7a2ce
+ Author: Paul Mackerras <paulus@ozlabs.org>
+ Date: Mon Oct 8 16:31:03 2018 +1100
+ KVM: PPC: Book3S HV: Framework and hcall stubs for nested virtualization
+
+The L1 code was added::
+
+ commit 360cae313702cdd0b90f82c261a8302fecef030a
+ Author: Paul Mackerras <paulus@ozlabs.org>
+ Date: Mon Oct 8 16:31:04 2018 +1100
+ KVM: PPC: Book3S HV: Nested guest entry via hypercall
+
+This API works primarily using a single hcall h_enter_nested(). This
+call made by the L1 to tell the L0 to start an L2 vCPU with the given
+state. The L0 then starts this L2 and runs until an L2 exit condition
+is reached. Once the L2 exits, the state of the L2 is given back to
+the L1 by the L0. The full L2 vCPU state is always transferred from
+and to L1 when the L2 is run. The L0 doesn't keep any state on the L2
+vCPU (except in the short sequence in the L0 on L1 -> L2 entry and L2
+-> L1 exit).
+
+The only state kept by the L0 is the partition table. The L1 registers
+it's partition table using the h_set_partition_table() hcall. All
+other state held by the L0 about the L2s is cached state (such as
+shadow page tables).
+
+The L1 may run any L2 or vCPU without first informing the L0. It
+simply starts the vCPU using h_enter_nested(). The creation of L2s and
+vCPUs is done implicitly whenever h_enter_nested() is called.
+
+In this document, we call this existing API the v1 API.
+
+New PAPR API
+===============
+
+The new PAPR API changes from the v1 API such that the creating L2 and
+associated vCPUs is explicit. In this document, we call this the v2
+API.
+
+h_enter_nested() is replaced with H_GUEST_VCPU_RUN(). Before this can
+be called the L1 must explicitly create the L2 using h_guest_create()
+and any associated vCPUs() created with h_guest_create_vCPU(). Getting
+and setting vCPU state can also be performed using h_guest_{g|s}et
+hcall.
+
+The basic execution flow is for an L1 to create an L2, run it, and
+delete it is:
+
+- L1 and L0 negotiate capabilities with H_GUEST_{G,S}ET_CAPABILITIES()
+ (normally at L1 boot time).
+
+- L1 requests the L0 create an L2 with H_GUEST_CREATE() and receives a token
+
+- L1 requests the L0 create an L2 vCPU with H_GUEST_CREATE_VCPU()
+
+- L1 and L0 communicate the vCPU state using the H_GUEST_{G,S}ET() hcall
+
+- L1 requests the L0 runs the vCPU running H_GUEST_VCPU_RUN() hcall
+
+- L1 deletes L2 with H_GUEST_DELETE()
+
+More details of the individual hcalls follows:
+
+HCALL Details
+=============
+
+This documentation is provided to give an overall understating of the
+API. It doesn't aim to provide all the details required to implement
+an L1 or L0. Latest version of PAPR can be referred to for more details.
+
+All these HCALLs are made by the L1 to the L0.
+
+H_GUEST_GET_CAPABILITIES()
+--------------------------
+
+This is called to get the capabilities of the L0 nested
+hypervisor. This includes capabilities such the CPU versions (eg
+POWER9, POWER10) that are supported as L2s::
+
+ H_GUEST_GET_CAPABILITIES(uint64 flags)
+
+ Parameters:
+ Input:
+ flags: Reserved
+ Output:
+ R3: Return code
+ R4: Hypervisor Supported Capabilities bitmap 1
+
+H_GUEST_SET_CAPABILITIES()
+--------------------------
+
+This is called to inform the L0 of the capabilities of the L1
+hypervisor. The set of flags passed here are the same as
+H_GUEST_GET_CAPABILITIES()
+
+Typically, GET will be called first and then SET will be called with a
+subset of the flags returned from GET. This process allows the L0 and
+L1 to negotiate an agreed set of capabilities::
+
+ H_GUEST_SET_CAPABILITIES(uint64 flags,
+ uint64 capabilitiesBitmap1)
+ Parameters:
+ Input:
+ flags: Reserved
+ capabilitiesBitmap1: Only capabilities advertised through
+ H_GUEST_GET_CAPABILITIES
+ Output:
+ R3: Return code
+ R4: If R3 = H_P2: The number of invalid bitmaps
+ R5: If R3 = H_P2: The index of first invalid bitmap
+
+H_GUEST_CREATE()
+----------------
+
+This is called to create an L2. A unique ID of the L2 created
+(similar to an LPID) is returned, which can be used on subsequent HCALLs to
+identify the L2::
+
+ H_GUEST_CREATE(uint64 flags,
+ uint64 continueToken);
+ Parameters:
+ Input:
+ flags: Reserved
+ continueToken: Initial call set to -1. Subsequent calls,
+ after H_Busy or H_LongBusyOrder has been
+ returned, value that was returned in R4.
+ Output:
+ R3: Return code. Notable:
+ H_Not_Enough_Resources: Unable to create Guest VCPU due to not
+ enough Hypervisor memory. See H_GUEST_CREATE_GET_STATE(flags =
+ takeOwnershipOfVcpuState)
+ R4: If R3 = H_Busy or_H_LongBusyOrder -> continueToken
+
+H_GUEST_CREATE_VCPU()
+---------------------
+
+This is called to create a vCPU associated with an L2. The L2 id
+(returned from H_GUEST_CREATE()) should be passed it. Also passed in
+is a unique (for this L2) vCPUid. This vCPUid is allocated by the
+L1::
+
+ H_GUEST_CREATE_VCPU(uint64 flags,
+ uint64 guestId,
+ uint64 vcpuId);
+ Parameters:
+ Input:
+ flags: Reserved
+ guestId: ID obtained from H_GUEST_CREATE
+ vcpuId: ID of the vCPU to be created. This must be within the
+ range of 0 to 2047
+ Output:
+ R3: Return code. Notable:
+ H_Not_Enough_Resources: Unable to create Guest VCPU due to not
+ enough Hypervisor memory. See H_GUEST_CREATE_GET_STATE(flags =
+ takeOwnershipOfVcpuState)
+
+H_GUEST_GET_STATE()
+-------------------
+
+This is called to get state associated with an L2 (Guest-wide or vCPU specific).
+This info is passed via the Guest State Buffer (GSB), a standard format as
+explained later in this doc, necessary details below:
+
+This can get either L2 wide or vcpu specific information. Examples of
+L2 wide is the timebase offset or process scoped page table
+info. Examples of vCPU specific are GPRs or VSRs. A bit in the flags
+parameter specifies if this call is L2 wide or vCPU specific and the
+IDs in the GSB must match this.
+
+The L1 provides a pointer to the GSB as a parameter to this call. Also
+provided is the L2 and vCPU IDs associated with the state to set.
+
+The L1 writes only the IDs and sizes in the GSB. L0 writes the
+associated values for each ID in the GSB::
+
+ H_GUEST_GET_STATE(uint64 flags,
+ uint64 guestId,
+ uint64 vcpuId,
+ uint64 dataBuffer,
+ uint64 dataBufferSizeInBytes);
+ Parameters:
+ Input:
+ flags:
+ Bit 0: getGuestWideState: Request state of the Guest instead
+ of an individual VCPU.
+ Bit 1: getHostWideState: Request stats of the Host. This causes
+ the guestId and vcpuId parameters to be ignored and attempting
+ to get the VCPU/Guest state will cause an error.
+ Bits 2-63: Reserved
+ guestId: ID obtained from H_GUEST_CREATE
+ vcpuId: ID of the vCPU pass to H_GUEST_CREATE_VCPU
+ dataBuffer: A L1 real address of the GSB.
+ If takeOwnershipOfVcpuState, size must be at least the size
+ returned by ID=0x0001
+ dataBufferSizeInBytes: Size of dataBuffer
+ Output:
+ R3: Return code
+ R4: If R3 = H_Invalid_Element_Id: The array index of the bad
+ element ID.
+ If R3 = H_Invalid_Element_Size: The array index of the bad
+ element size.
+ If R3 = H_Invalid_Element_Value: The array index of the bad
+ element value.
+
+H_GUEST_SET_STATE()
+-------------------
+
+This is called to set L2 wide or vCPU specific L2 state. This info is
+passed via the Guest State Buffer (GSB), necessary details below:
+
+This can set either L2 wide or vcpu specific information. Examples of
+L2 wide is the timebase offset or process scoped page table
+info. Examples of vCPU specific are GPRs or VSRs. A bit in the flags
+parameter specifies if this call is L2 wide or vCPU specific and the
+IDs in the GSB must match this.
+
+The L1 provides a pointer to the GSB as a parameter to this call. Also
+provided is the L2 and vCPU IDs associated with the state to set.
+
+The L1 writes all values in the GSB and the L0 only reads the GSB for
+this call::
+
+ H_GUEST_SET_STATE(uint64 flags,
+ uint64 guestId,
+ uint64 vcpuId,
+ uint64 dataBuffer,
+ uint64 dataBufferSizeInBytes);
+ Parameters:
+ Input:
+ flags:
+ Bit 0: getGuestWideState: Request state of the Guest instead
+ of an individual VCPU.
+ Bit 1: returnOwnershipOfVcpuState Return Guest VCPU state. See
+ GET_STATE takeOwnershipOfVcpuState
+ Bits 2-63: Reserved
+ guestId: ID obtained from H_GUEST_CREATE
+ vcpuId: ID of the vCPU pass to H_GUEST_CREATE_VCPU
+ dataBuffer: A L1 real address of the GSB.
+ If takeOwnershipOfVcpuState, size must be at least the size
+ returned by ID=0x0001
+ dataBufferSizeInBytes: Size of dataBuffer
+ Output:
+ R3: Return code
+ R4: If R3 = H_Invalid_Element_Id: The array index of the bad
+ element ID.
+ If R3 = H_Invalid_Element_Size: The array index of the bad
+ element size.
+ If R3 = H_Invalid_Element_Value: The array index of the bad
+ element value.
+
+H_GUEST_RUN_VCPU()
+------------------
+
+This is called to run an L2 vCPU. The L2 and vCPU IDs are passed in as
+parameters. The vCPU runs with the state set previously using
+H_GUEST_SET_STATE(). When the L2 exits, the L1 will resume from this
+hcall.
+
+This hcall also has associated input and output GSBs. Unlike
+H_GUEST_{S,G}ET_STATE(), these GSB pointers are not passed in as
+parameters to the hcall (This was done in the interest of
+performance). The locations of these GSBs must be preregistered using
+the H_GUEST_SET_STATE() call with ID 0x0c00 and 0x0c01 (see table
+below).
+
+The input GSB may contain only VCPU specific elements to be set. This
+GSB may also contain zero elements (ie 0 in the first 4 bytes of the
+GSB) if nothing needs to be set.
+
+On exit from the hcall, the output buffer is filled with elements
+determined by the L0. The reason for the exit is contained in GPR4 (ie
+NIP is put in GPR4). The elements returned depend on the exit
+type. For example, if the exit reason is the L2 doing a hcall (GPR4 =
+0xc00), then GPR3-12 are provided in the output GSB as this is the
+state likely needed to service the hcall. If additional state is
+needed, H_GUEST_GET_STATE() may be called by the L1.
+
+To synthesize interrupts in the L2, when calling H_GUEST_RUN_VCPU()
+the L1 may set a flag (as a hcall parameter) and the L0 will
+synthesize the interrupt in the L2. Alternatively, the L1 may
+synthesize the interrupt itself using H_GUEST_SET_STATE() or the
+H_GUEST_RUN_VCPU() input GSB to set the state appropriately::
+
+ H_GUEST_RUN_VCPU(uint64 flags,
+ uint64 guestId,
+ uint64 vcpuId,
+ uint64 dataBuffer,
+ uint64 dataBufferSizeInBytes);
+ Parameters:
+ Input:
+ flags:
+ Bit 0: generateExternalInterrupt: Generate an external interrupt
+ Bit 1: generatePrivilegedDoorbell: Generate a Privileged Doorbell
+ Bit 2: sendToSystemReset”: Generate a System Reset Interrupt
+ Bits 3-63: Reserved
+ guestId: ID obtained from H_GUEST_CREATE
+ vcpuId: ID of the vCPU pass to H_GUEST_CREATE_VCPU
+ Output:
+ R3: Return code
+ R4: If R3 = H_Success: The reason L1 VCPU exited (ie. NIA)
+ 0x000: The VCPU stopped running for an unspecified reason. An
+ example of this is the Hypervisor stopping a VCPU running
+ due to an outstanding interrupt for the Host Partition.
+ 0x980: HDEC
+ 0xC00: HCALL
+ 0xE00: HDSI
+ 0xE20: HISI
+ 0xE40: HEA
+ 0xF80: HV Fac Unavail
+ If R3 = H_Invalid_Element_Id, H_Invalid_Element_Size, or
+ H_Invalid_Element_Value: R4 is offset of the invalid element
+ in the input buffer.
+
+H_GUEST_DELETE()
+----------------
+
+This is called to delete an L2. All associated vCPUs are also
+deleted. No specific vCPU delete call is provided.
+
+A flag may be provided to delete all guests. This is used to reset the
+L0 in the case of kdump/kexec::
+
+ H_GUEST_DELETE(uint64 flags,
+ uint64 guestId)
+ Parameters:
+ Input:
+ flags:
+ Bit 0: deleteAllGuests: deletes all guests
+ Bits 1-63: Reserved
+ guestId: ID obtained from H_GUEST_CREATE
+ Output:
+ R3: Return code
+
+Guest State Buffer
+==================
+
+The Guest State Buffer (GSB) is the main method of communicating state
+about the L2 between the L1 and L0 via H_GUEST_{G,S}ET() and
+H_GUEST_VCPU_RUN() calls.
+
+State may be associated with a whole L2 (eg timebase offset) or a
+specific L2 vCPU (eg. GPR state). Only L2 VCPU state maybe be set by
+H_GUEST_VCPU_RUN().
+
+All data in the GSB is big endian (as is standard in PAPR)
+
+The Guest state buffer has a header which gives the number of
+elements, followed by the GSB elements themselves.
+
+GSB header:
+
++----------+----------+-------------------------------------------+
+| Offset | Size | Purpose |
+| Bytes | Bytes | |
++==========+==========+===========================================+
+| 0 | 4 | Number of elements |
++----------+----------+-------------------------------------------+
+| 4 | | Guest state buffer elements |
++----------+----------+-------------------------------------------+
+
+GSB element:
+
++----------+----------+-------------------------------------------+
+| Offset | Size | Purpose |
+| Bytes | Bytes | |
++==========+==========+===========================================+
+| 0 | 2 | ID |
++----------+----------+-------------------------------------------+
+| 2 | 2 | Size of Value |
++----------+----------+-------------------------------------------+
+| 4 | As above | Value |
++----------+----------+-------------------------------------------+
+
+The ID in the GSB element specifies what is to be set. This includes
+archtected state like GPRs, VSRs, SPRs, plus also some meta data about
+the partition like the timebase offset and partition scoped page
+table information.
+
++--------+-------+----+--------+----------------------------------+
+| ID | Size | RW |(H)ost | Details |
+| | Bytes | |(G)uest | |
+| | | |(T)hread| |
+| | | |Scope | |
++========+=======+====+========+==================================+
+| 0x0000 | | RW | TG | NOP element |
++--------+-------+----+--------+----------------------------------+
+| 0x0001 | 0x08 | R | G | Size of L0 vCPU state. See: |
+| | | | | H_GUEST_GET_STATE: |
+| | | | | flags = takeOwnershipOfVcpuState |
++--------+-------+----+--------+----------------------------------+
+| 0x0002 | 0x08 | R | G | Size Run vCPU out buffer |
++--------+-------+----+--------+----------------------------------+
+| 0x0003 | 0x04 | RW | G | Logical PVR |
++--------+-------+----+--------+----------------------------------+
+| 0x0004 | 0x08 | RW | G | TB Offset (L1 relative) |
++--------+-------+----+--------+----------------------------------+
+| 0x0005 | 0x18 | RW | G |Partition scoped page tbl info: |
+| | | | | |
+| | | | |- 0x00 Addr part scope table |
+| | | | |- 0x08 Num addr bits |
+| | | | |- 0x10 Size root dir |
++--------+-------+----+--------+----------------------------------+
+| 0x0006 | 0x10 | RW | G |Process Table Information: |
+| | | | | |
+| | | | |- 0x0 Addr proc scope table |
+| | | | |- 0x8 Table size. |
++--------+-------+----+--------+----------------------------------+
+| 0x0007-| | | | Reserved |
+| 0x07FF | | | | |
++--------+-------+----+--------+----------------------------------+
+| 0x0800 | 0x08 | R | H | Current usage in bytes of the |
+| | | | | L0's Guest Management Space |
+| | | | | for an L1-Lpar. |
++--------+-------+----+--------+----------------------------------+
+| 0x0801 | 0x08 | R | H | Max bytes available in the |
+| | | | | L0's Guest Management Space for |
+| | | | | an L1-Lpar |
++--------+-------+----+--------+----------------------------------+
+| 0x0802 | 0x08 | R | H | Current usage in bytes of the |
+| | | | | L0's Guest Page Table Management |
+| | | | | Space for an L1-Lpar |
++--------+-------+----+--------+----------------------------------+
+| 0x0803 | 0x08 | R | H | Max bytes available in the L0's |
+| | | | | Guest Page Table Management |
+| | | | | Space for an L1-Lpar |
++--------+-------+----+--------+----------------------------------+
+| 0x0804 | 0x08 | R | H | Cumulative Reclaimed bytes from |
+| | | | | L0 Guest's Page Table Management |
+| | | | | Space due to overcommit |
++--------+-------+----+--------+----------------------------------+
+| 0x0805-| | | | Reserved |
+| 0x0BFF | | | | |
++--------+-------+----+--------+----------------------------------+
+| 0x0C00 | 0x10 | RW | T |Run vCPU Input Buffer: |
+| | | | | |
+| | | | |- 0x0 Addr of buffer |
+| | | | |- 0x8 Buffer Size. |
++--------+-------+----+--------+----------------------------------+
+| 0x0C01 | 0x10 | RW | T |Run vCPU Output Buffer: |
+| | | | | |
+| | | | |- 0x0 Addr of buffer |
+| | | | |- 0x8 Buffer Size. |
++--------+-------+----+--------+----------------------------------+
+| 0x0C02 | 0x08 | RW | T | vCPU VPA Address |
++--------+-------+----+--------+----------------------------------+
+| 0x0C03-| | | | Reserved |
+| 0x0FFF | | | | |
++--------+-------+----+--------+----------------------------------+
+| 0x1000-| 0x08 | RW | T | GPR 0-31 |
+| 0x101F | | | | |
++--------+-------+----+--------+----------------------------------+
+| 0x1020 | 0x08 | T | T | HDEC expiry TB |
++--------+-------+----+--------+----------------------------------+
+| 0x1021 | 0x08 | RW | T | NIA |
++--------+-------+----+--------+----------------------------------+
+| 0x1022 | 0x08 | RW | T | MSR |
++--------+-------+----+--------+----------------------------------+
+| 0x1023 | 0x08 | RW | T | LR |
++--------+-------+----+--------+----------------------------------+
+| 0x1024 | 0x08 | RW | T | XER |
++--------+-------+----+--------+----------------------------------+
+| 0x1025 | 0x08 | RW | T | CTR |
++--------+-------+----+--------+----------------------------------+
+| 0x1026 | 0x08 | RW | T | CFAR |
++--------+-------+----+--------+----------------------------------+
+| 0x1027 | 0x08 | RW | T | SRR0 |
++--------+-------+----+--------+----------------------------------+
+| 0x1028 | 0x08 | RW | T | SRR1 |
++--------+-------+----+--------+----------------------------------+
+| 0x1029 | 0x08 | RW | T | DAR |
++--------+-------+----+--------+----------------------------------+
+| 0x102A | 0x08 | RW | T | DEC expiry TB |
++--------+-------+----+--------+----------------------------------+
+| 0x102B | 0x08 | RW | T | VTB |
++--------+-------+----+--------+----------------------------------+
+| 0x102C | 0x08 | RW | T | LPCR |
++--------+-------+----+--------+----------------------------------+
+| 0x102D | 0x08 | RW | T | HFSCR |
++--------+-------+----+--------+----------------------------------+
+| 0x102E | 0x08 | RW | T | FSCR |
++--------+-------+----+--------+----------------------------------+
+| 0x102F | 0x08 | RW | T | FPSCR |
++--------+-------+----+--------+----------------------------------+
+| 0x1030 | 0x08 | RW | T | DAWR0 |
++--------+-------+----+--------+----------------------------------+
+| 0x1031 | 0x08 | RW | T | DAWR1 |
++--------+-------+----+--------+----------------------------------+
+| 0x1032 | 0x08 | RW | T | CIABR |
++--------+-------+----+--------+----------------------------------+
+| 0x1033 | 0x08 | RW | T | PURR |
++--------+-------+----+--------+----------------------------------+
+| 0x1034 | 0x08 | RW | T | SPURR |
++--------+-------+----+--------+----------------------------------+
+| 0x1035 | 0x08 | RW | T | IC |
++--------+-------+----+--------+----------------------------------+
+| 0x1036-| 0x08 | RW | T | SPRG 0-3 |
+| 0x1039 | | | | |
++--------+-------+----+--------+----------------------------------+
+| 0x103A | 0x08 | W | T | PPR |
++--------+-------+----+--------+----------------------------------+
+| 0x103B | 0x08 | RW | T | MMCR 0-3 |
+| 0x103E | | | | |
++--------+-------+----+--------+----------------------------------+
+| 0x103F | 0x08 | RW | T | MMCRA |
++--------+-------+----+--------+----------------------------------+
+| 0x1040 | 0x08 | RW | T | SIER |
++--------+-------+----+--------+----------------------------------+
+| 0x1041 | 0x08 | RW | T | SIER 2 |
++--------+-------+----+--------+----------------------------------+
+| 0x1042 | 0x08 | RW | T | SIER 3 |
++--------+-------+----+--------+----------------------------------+
+| 0x1043 | 0x08 | RW | T | BESCR |
++--------+-------+----+--------+----------------------------------+
+| 0x1044 | 0x08 | RW | T | EBBHR |
++--------+-------+----+--------+----------------------------------+
+| 0x1045 | 0x08 | RW | T | EBBRR |
++--------+-------+----+--------+----------------------------------+
+| 0x1046 | 0x08 | RW | T | AMR |
++--------+-------+----+--------+----------------------------------+
+| 0x1047 | 0x08 | RW | T | IAMR |
++--------+-------+----+--------+----------------------------------+
+| 0x1048 | 0x08 | RW | T | AMOR |
++--------+-------+----+--------+----------------------------------+
+| 0x1049 | 0x08 | RW | T | UAMOR |
++--------+-------+----+--------+----------------------------------+
+| 0x104A | 0x08 | RW | T | SDAR |
++--------+-------+----+--------+----------------------------------+
+| 0x104B | 0x08 | RW | T | SIAR |
++--------+-------+----+--------+----------------------------------+
+| 0x104C | 0x08 | RW | T | DSCR |
++--------+-------+----+--------+----------------------------------+
+| 0x104D | 0x08 | RW | T | TAR |
++--------+-------+----+--------+----------------------------------+
+| 0x104E | 0x08 | RW | T | DEXCR |
++--------+-------+----+--------+----------------------------------+
+| 0x104F | 0x08 | RW | T | HDEXCR |
++--------+-------+----+--------+----------------------------------+
+| 0x1050 | 0x08 | RW | T | HASHKEYR |
++--------+-------+----+--------+----------------------------------+
+| 0x1051 | 0x08 | RW | T | HASHPKEYR |
++--------+-------+----+--------+----------------------------------+
+| 0x1052 | 0x08 | RW | T | CTRL |
++--------+-------+----+--------+----------------------------------+
+| 0x1053 | 0x08 | RW | T | DPDES |
++--------+-------+----+--------+----------------------------------+
+| 0x1054-| | | | Reserved |
+| 0x1FFF | | | | |
++--------+-------+----+--------+----------------------------------+
+| 0x2000 | 0x04 | RW | T | CR |
++--------+-------+----+--------+----------------------------------+
+| 0x2001 | 0x04 | RW | T | PIDR |
++--------+-------+----+--------+----------------------------------+
+| 0x2002 | 0x04 | RW | T | DSISR |
++--------+-------+----+--------+----------------------------------+
+| 0x2003 | 0x04 | RW | T | VSCR |
++--------+-------+----+--------+----------------------------------+
+| 0x2004 | 0x04 | RW | T | VRSAVE |
++--------+-------+----+--------+----------------------------------+
+| 0x2005 | 0x04 | RW | T | DAWRX0 |
++--------+-------+----+--------+----------------------------------+
+| 0x2006 | 0x04 | RW | T | DAWRX1 |
++--------+-------+----+--------+----------------------------------+
+| 0x2007-| 0x04 | RW | T | PMC 1-6 |
+| 0x200c | | | | |
++--------+-------+----+--------+----------------------------------+
+| 0x200D | 0x04 | RW | T | WORT |
++--------+-------+----+--------+----------------------------------+
+| 0x200E | 0x04 | RW | T | PSPB |
++--------+-------+----+--------+----------------------------------+
+| 0x200F-| | | | Reserved |
+| 0x2FFF | | | | |
++--------+-------+----+--------+----------------------------------+
+| 0x3000-| 0x10 | RW | T | VSR 0-63 |
+| 0x303F | | | | |
++--------+-------+----+--------+----------------------------------+
+| 0x3040-| | | | Reserved |
+| 0xEFFF | | | | |
++--------+-------+----+--------+----------------------------------+
+| 0xF000 | 0x08 | R | T | HDAR |
++--------+-------+----+--------+----------------------------------+
+| 0xF001 | 0x04 | R | T | HDSISR |
++--------+-------+----+--------+----------------------------------+
+| 0xF002 | 0x04 | R | T | HEIR |
++--------+-------+----+--------+----------------------------------+
+| 0xF003 | 0x08 | R | T | ASDR |
++--------+-------+----+--------+----------------------------------+
+
+
+Miscellaneous info
+==================
+
+State not in ptregs/hvregs
+--------------------------
+
+In the v1 API, some state is not in the ptregs/hvstate. This includes
+the vector register and some SPRs. For the L1 to set this state for
+the L2, the L1 loads up these hardware registers before the
+h_enter_nested() call and the L0 ensures they end up as the L2 state
+(by not touching them).
+
+The v2 API removes this and explicitly sets this state via the GSB.
+
+L1 Implementation details: Caching state
+----------------------------------------
+
+In the v1 API, all state is sent from the L1 to the L0 and vice versa
+on every h_enter_nested() hcall. If the L0 is not currently running
+any L2s, the L0 has no state information about them. The only
+exception to this is the location of the partition table, registered
+via h_set_partition_table().
+
+The v2 API changes this so that the L0 retains the L2 state even when
+it's vCPUs are no longer running. This means that the L1 only needs to
+communicate with the L0 about L2 state when it needs to modify the L2
+state, or when it's value is out of date. This provides an opportunity
+for performance optimisation.
+
+When a vCPU exits from a H_GUEST_RUN_VCPU() call, the L1 internally
+marks all L2 state as invalid. This means that if the L1 wants to know
+the L2 state (say via a kvm_get_one_reg() call), it needs call
+H_GUEST_GET_STATE() to get that state. Once it's read, it's marked as
+valid in L1 until the L2 is run again.
+
+Also, when an L1 modifies L2 vcpu state, it doesn't need to write it
+to the L0 until that L2 vcpu runs again. Hence when the L1 updates
+state (say via a kvm_set_one_reg() call), it writes to an internal L1
+copy and only flushes this copy to the L0 when the L2 runs again via
+the H_GUEST_VCPU_RUN() input buffer.
+
+This lazy updating of state by the L1 avoids unnecessary
+H_GUEST_{G|S}ET_STATE() calls.
diff --git a/Documentation/powerpc/mpc52xx.rst b/Documentation/arch/powerpc/mpc52xx.rst
index 5243b1763fad..5243b1763fad 100644
--- a/Documentation/powerpc/mpc52xx.rst
+++ b/Documentation/arch/powerpc/mpc52xx.rst
diff --git a/Documentation/powerpc/papr_hcalls.rst b/Documentation/arch/powerpc/papr_hcalls.rst
index fce8bc793660..805e1cb9bab9 100644
--- a/Documentation/powerpc/papr_hcalls.rst
+++ b/Documentation/arch/powerpc/papr_hcalls.rst
@@ -22,7 +22,7 @@ privileged operations. Currently there are two PAPR compliant hypervisors:
On PPC64 arch a guest kernel running on top of a PAPR hypervisor is called
a *pSeries guest*. A pseries guest runs in a supervisor mode (HV=0) and must
issue hypercalls to the hypervisor whenever it needs to perform an action
-that is hypervisor priviledged [3]_ or for other services managed by the
+that is hypervisor privileged [3]_ or for other services managed by the
hypervisor.
Hence a Hypercall (hcall) is essentially a request by the pseries guest
@@ -289,6 +289,17 @@ to be issued multiple times in order to be completely serviced. The
subsequent hcalls to the hypervisor until the hcall is completely serviced
at which point H_SUCCESS or other error is returned by the hypervisor.
+**H_HTM**
+
+| Input: flags, target, operation (op), op-param1, op-param2, op-param3
+| Out: *dumphtmbufferdata*
+| Return Value: *H_Success,H_Busy,H_LongBusyOrder,H_Partial,H_Parameter,
+ H_P2,H_P3,H_P4,H_P5,H_P6,H_State,H_Not_Available,H_Authority*
+
+H_HTM supports setup, configuration, control and dumping of Hardware Trace
+Macro (HTM) function and its data. HTM buffer stores tracing data for functions
+like core instruction, core LLAT and nest.
+
References
==========
.. [1] "Power Architecture Platform Reference"
diff --git a/Documentation/powerpc/pci_iov_resource_on_powernv.rst b/Documentation/arch/powerpc/pci_iov_resource_on_powernv.rst
index f5a5793e1613..f5a5793e1613 100644
--- a/Documentation/powerpc/pci_iov_resource_on_powernv.rst
+++ b/Documentation/arch/powerpc/pci_iov_resource_on_powernv.rst
diff --git a/Documentation/powerpc/pmu-ebb.rst b/Documentation/arch/powerpc/pmu-ebb.rst
index 4f474758eb55..4f474758eb55 100644
--- a/Documentation/powerpc/pmu-ebb.rst
+++ b/Documentation/arch/powerpc/pmu-ebb.rst
diff --git a/Documentation/powerpc/ptrace.rst b/Documentation/arch/powerpc/ptrace.rst
index 77725d69eb4a..5629edf4d56e 100644
--- a/Documentation/powerpc/ptrace.rst
+++ b/Documentation/arch/powerpc/ptrace.rst
@@ -15,7 +15,7 @@ that's extendable and that covers both BookE and server processors, so
that GDB doesn't need to special-case each of them. We added the
following 3 new ptrace requests.
-1. PTRACE_PPC_GETHWDEBUGINFO
+1. PPC_PTRACE_GETHWDBGINFO
============================
Query for GDB to discover the hardware debug features. The main info to
@@ -48,7 +48,7 @@ features will have bits indicating whether there is support for::
#define PPC_DEBUG_FEATURE_DATA_BP_DAWR 0x10
#define PPC_DEBUG_FEATURE_DATA_BP_ARCH_31 0x20
-2. PTRACE_SETHWDEBUG
+2. PPC_PTRACE_SETHWDEBUG
Sets a hardware breakpoint or watchpoint, according to the provided structure::
@@ -88,7 +88,7 @@ that the BookE supports. COMEFROM breakpoints available in server processors
are not contemplated, but that is out of the scope of this work.
ptrace will return an integer (handle) uniquely identifying the breakpoint or
-watchpoint just created. This integer will be used in the PTRACE_DELHWDEBUG
+watchpoint just created. This integer will be used in the PPC_PTRACE_DELHWDEBUG
request to ask for its removal. Return -ENOSPC if the requested breakpoint
can't be allocated on the registers.
@@ -150,7 +150,7 @@ Some examples of using the structure to:
p.addr2 = (uint64_t) end_range;
p.condition_value = 0;
-3. PTRACE_DELHWDEBUG
+3. PPC_PTRACE_DELHWDEBUG
Takes an integer which identifies an existing breakpoint or watchpoint
(i.e., the value returned from PTRACE_SETHWDEBUG), and deletes the
diff --git a/Documentation/powerpc/qe_firmware.rst b/Documentation/arch/powerpc/qe_firmware.rst
index 42f5103140c9..a358f152b7e7 100644
--- a/Documentation/powerpc/qe_firmware.rst
+++ b/Documentation/arch/powerpc/qe_firmware.rst
@@ -232,11 +232,11 @@ For example, to match the 8323, revision 1.0::
'extended_modes' is a bitfield that defines special functionality which has an
impact on the device drivers. Each bit has its own impact and has special
instructions for the driver associated with it. This field is stored in
-the QE library and available to any driver that calles qe_get_firmware_info().
+the QE library and available to any driver that calls qe_get_firmware_info().
'vtraps' is an array of 8 words that contain virtual trap values for each
virtual traps. As with 'extended_modes', this field is stored in the QE
-library and available to any driver that calles qe_get_firmware_info().
+library and available to any driver that calls qe_get_firmware_info().
'microcode' (type: struct qe_microcode):
For each RISC processor there is one 'microcode' structure. The first
diff --git a/Documentation/powerpc/syscall64-abi.rst b/Documentation/arch/powerpc/syscall64-abi.rst
index 56490c4c0c07..56490c4c0c07 100644
--- a/Documentation/powerpc/syscall64-abi.rst
+++ b/Documentation/arch/powerpc/syscall64-abi.rst
diff --git a/Documentation/powerpc/transactional_memory.rst b/Documentation/arch/powerpc/transactional_memory.rst
index 040a20675fd1..040a20675fd1 100644
--- a/Documentation/powerpc/transactional_memory.rst
+++ b/Documentation/arch/powerpc/transactional_memory.rst
diff --git a/Documentation/powerpc/ultravisor.rst b/Documentation/arch/powerpc/ultravisor.rst
index ba6b1bf1cc44..6d0407b2f5a1 100644
--- a/Documentation/powerpc/ultravisor.rst
+++ b/Documentation/arch/powerpc/ultravisor.rst
@@ -134,7 +134,7 @@ Hardware
* PTCR and partition table entries (partition table is in secure
memory). An attempt to write to PTCR will cause a Hypervisor
- Emulation Assitance interrupt.
+ Emulation Assistance interrupt.
* LDBAR (LD Base Address Register) and IMC (In-Memory Collection)
non-architected registers. An attempt to write to them will cause a
diff --git a/Documentation/powerpc/vas-api.rst b/Documentation/arch/powerpc/vas-api.rst
index bdb50fed903e..a9625a2fa0c6 100644
--- a/Documentation/powerpc/vas-api.rst
+++ b/Documentation/arch/powerpc/vas-api.rst
@@ -46,7 +46,7 @@ request queue into the application's virtual address space.
The application can then submit one or more requests to the engine by
using copy/paste instructions and pasting the CRBs to the virtual address
(aka paste_address) returned by mmap(). User space can close the
-established connection or send window by closing the file descriptior
+established connection or send window by closing the file descriptor
(close(fd)) or upon the process exit.
Note that applications can send several requests with the same window or
@@ -240,7 +240,7 @@ issued. This signal returns with the following siginfo struct::
siginfo.si_signo = SIGSEGV;
siginfo.si_errno = EFAULT;
siginfo.si_code = SEGV_MAPERR;
- siginfo.si_addr = CSB adress;
+ siginfo.si_addr = CSB address;
In the case of multi-thread applications, NX send windows can be shared
across all threads. For example, a child thread can open a send window,
diff --git a/Documentation/powerpc/vcpudispatch_stats.rst b/Documentation/arch/powerpc/vcpudispatch_stats.rst
index 5704657a5987..5704657a5987 100644
--- a/Documentation/powerpc/vcpudispatch_stats.rst
+++ b/Documentation/arch/powerpc/vcpudispatch_stats.rst
diff --git a/Documentation/arch/powerpc/vmemmap_dedup.rst b/Documentation/arch/powerpc/vmemmap_dedup.rst
new file mode 100644
index 000000000000..dc4db59fdf87
--- /dev/null
+++ b/Documentation/arch/powerpc/vmemmap_dedup.rst
@@ -0,0 +1,101 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+==========
+Device DAX
+==========
+
+The device-dax interface uses the tail deduplication technique explained in
+Documentation/mm/vmemmap_dedup.rst
+
+On powerpc, vmemmap deduplication is only used with radix MMU translation. Also
+with a 64K page size, only the devdax namespace with 1G alignment uses vmemmap
+deduplication.
+
+With 2M PMD level mapping, we require 32 struct pages and a single 64K vmemmap
+page can contain 1024 struct pages (64K/sizeof(struct page)). Hence there is no
+vmemmap deduplication possible.
+
+With 1G PUD level mapping, we require 16384 struct pages and a single 64K
+vmemmap page can contain 1024 struct pages (64K/sizeof(struct page)). Hence we
+require 16 64K pages in vmemmap to map the struct page for 1G PUD level mapping.
+
+Here's how things look like on device-dax after the sections are populated::
+ +-----------+ ---virt_to_page---> +-----------+ mapping to +-----------+
+ | | | 0 | -------------> | 0 |
+ | | +-----------+ +-----------+
+ | | | 1 | -------------> | 1 |
+ | | +-----------+ +-----------+
+ | | | 2 | ----------------^ ^ ^ ^ ^ ^
+ | | +-----------+ | | | | |
+ | | | 3 | ------------------+ | | | |
+ | | +-----------+ | | | |
+ | | | 4 | --------------------+ | | |
+ | PUD | +-----------+ | | |
+ | level | | . | ----------------------+ | |
+ | mapping | +-----------+ | |
+ | | | . | ------------------------+ |
+ | | +-----------+ |
+ | | | 15 | --------------------------+
+ | | +-----------+
+ | |
+ | |
+ | |
+ +-----------+
+
+
+With 4K page size, 2M PMD level mapping requires 512 struct pages and a single
+4K vmemmap page contains 64 struct pages(4K/sizeof(struct page)). Hence we
+require 8 4K pages in vmemmap to map the struct page for 2M pmd level mapping.
+
+Here's how things look like on device-dax after the sections are populated::
+
+ +-----------+ ---virt_to_page---> +-----------+ mapping to +-----------+
+ | | | 0 | -------------> | 0 |
+ | | +-----------+ +-----------+
+ | | | 1 | -------------> | 1 |
+ | | +-----------+ +-----------+
+ | | | 2 | ----------------^ ^ ^ ^ ^ ^
+ | | +-----------+ | | | | |
+ | | | 3 | ------------------+ | | | |
+ | | +-----------+ | | | |
+ | | | 4 | --------------------+ | | |
+ | PMD | +-----------+ | | |
+ | level | | 5 | ----------------------+ | |
+ | mapping | +-----------+ | |
+ | | | 6 | ------------------------+ |
+ | | +-----------+ |
+ | | | 7 | --------------------------+
+ | | +-----------+
+ | |
+ | |
+ | |
+ +-----------+
+
+With 1G PUD level mapping, we require 262144 struct pages and a single 4K
+vmemmap page can contain 64 struct pages (4K/sizeof(struct page)). Hence we
+require 4096 4K pages in vmemmap to map the struct pages for 1G PUD level
+mapping.
+
+Here's how things look like on device-dax after the sections are populated::
+
+ +-----------+ ---virt_to_page---> +-----------+ mapping to +-----------+
+ | | | 0 | -------------> | 0 |
+ | | +-----------+ +-----------+
+ | | | 1 | -------------> | 1 |
+ | | +-----------+ +-----------+
+ | | | 2 | ----------------^ ^ ^ ^ ^ ^
+ | | +-----------+ | | | | |
+ | | | 3 | ------------------+ | | | |
+ | | +-----------+ | | | |
+ | | | 4 | --------------------+ | | |
+ | PUD | +-----------+ | | |
+ | level | | . | ----------------------+ | |
+ | mapping | +-----------+ | |
+ | | | . | ------------------------+ |
+ | | +-----------+ |
+ | | | 4095 | --------------------------+
+ | | +-----------+
+ | |
+ | |
+ | |
+ +-----------+
diff --git a/Documentation/arch/powerpc/vpa-dtl.rst b/Documentation/arch/powerpc/vpa-dtl.rst
new file mode 100644
index 000000000000..58d0022f993a
--- /dev/null
+++ b/Documentation/arch/powerpc/vpa-dtl.rst
@@ -0,0 +1,156 @@
+.. SPDX-License-Identifier: GPL-2.0
+.. _vpa-dtl:
+
+===================================
+DTL (Dispatch Trace Log)
+===================================
+
+Athira Rajeev, 19 April 2025
+
+.. contents::
+ :depth: 3
+
+
+Basic overview
+==============
+
+The pseries Shared Processor Logical Partition(SPLPAR) machines can
+retrieve a log of dispatch and preempt events from the hypervisor
+using data from Disptach Trace Log(DTL) buffer. With this information,
+user can retrieve when and why each dispatch & preempt has occurred.
+The vpa-dtl PMU exposes the Virtual Processor Area(VPA) DTL counters
+via perf.
+
+Infrastructure used
+===================
+
+The VPA DTL PMU counters do not interrupt on overflow or generate any
+PMI interrupts. Therefore, hrtimer is used to poll the DTL data. The timer
+nterval can be provided by user via sample_period field in nano seconds.
+vpa dtl pmu has one hrtimer added per vpa-dtl pmu thread. DTL (Dispatch
+Trace Log) contains information about dispatch/preempt, enqueue time etc.
+We directly copy the DTL buffer data as part of auxiliary buffer and it
+will be processed later. This will avoid time taken to create samples
+in the kernel space. The PMU driver collecting Dispatch Trace Log (DTL)
+entries makes use of AUX support in perf infrastructure. On the tools side,
+this data is made available as PERF_RECORD_AUXTRACE records.
+
+To correlate each DTL entry with other events across CPU's, an auxtrace_queue
+is created for each CPU. Each auxtrace queue has a array/list of auxtrace buffers.
+All auxtrace queues is maintained in auxtrace heap. The queues are sorted
+based on timestamp. When the different PERF_RECORD_XX records are processed,
+compare the timestamp of perf record with timestamp of top element in the
+auxtrace heap so that DTL events can be co-related with other events
+Process the auxtrace queue if the timestamp of element from heap is
+lower than timestamp from entry in perf record. Sometimes it could happen that
+one buffer is only partially processed. if the timestamp of occurrence of
+another event is more than currently processed element in the queue, it will
+move on to next perf record. So keep track of position of buffer to continue
+processing next time. Update the timestamp of the auxtrace heap with the timestamp
+of last processed entry from the auxtrace buffer.
+
+This infrastructure ensures dispatch trace log entries can be correlated
+and presented along with other events like sched.
+
+vpa-dtl PMU example usage
+=========================
+
+.. code-block:: sh
+
+ # ls /sys/devices/vpa_dtl/
+ events format perf_event_mux_interval_ms power subsystem type uevent
+
+
+To capture the DTL data using perf record:
+.. code-block:: sh
+
+ # ./perf record -a -e sched:\*,vpa_dtl/dtl_all/ -c 1000000000 sleep 1
+
+The result can be interpreted using perf record. Snippet of perf report -D
+
+.. code-block:: sh
+
+ # ./perf report -D
+
+There are different PERF_RECORD_XX records. In that records corresponding to
+auxtrace buffers includes:
+
+1. PERF_RECORD_AUX
+ Conveys that new data is available in AUX area
+
+2. PERF_RECORD_AUXTRACE_INFO
+ Describes offset and size of auxtrace data in the buffers
+
+3. PERF_RECORD_AUXTRACE
+ This is the record that defines the auxtrace data which here in case of
+ vpa-dtl pmu is dispatch trace log data.
+
+Snippet from perf report -D showing the PERF_RECORD_AUXTRACE dump
+
+.. code-block:: sh
+
+0 0 0x39b10 [0x30]: PERF_RECORD_AUXTRACE size: 0x690 offset: 0 ref: 0 idx: 0 tid: -1 cpu: 0
+.
+. ... VPA DTL PMU data: size 1680 bytes, entries is 35
+. 00000000: boot_tb: 21349649546353231, tb_freq: 512000000
+. 00000030: dispatch_reason:decrementer interrupt, preempt_reason:H_CEDE, enqueue_to_dispatch_time:7064, ready_to_enqueue_time:187, waiting_to_ready_time:6611773
+. 00000060: dispatch_reason:priv doorbell, preempt_reason:H_CEDE, enqueue_to_dispatch_time:146, ready_to_enqueue_time:0, waiting_to_ready_time:15359437
+. 00000090: dispatch_reason:decrementer interrupt, preempt_reason:H_CEDE, enqueue_to_dispatch_time:4868, ready_to_enqueue_time:232, waiting_to_ready_time:5100709
+. 000000c0: dispatch_reason:priv doorbell, preempt_reason:H_CEDE, enqueue_to_dispatch_time:179, ready_to_enqueue_time:0, waiting_to_ready_time:30714243
+. 000000f0: dispatch_reason:priv doorbell, preempt_reason:H_CEDE, enqueue_to_dispatch_time:197, ready_to_enqueue_time:0, waiting_to_ready_time:15350648
+. 00000120: dispatch_reason:priv doorbell, preempt_reason:H_CEDE, enqueue_to_dispatch_time:213, ready_to_enqueue_time:0, waiting_to_ready_time:15353446
+. 00000150: dispatch_reason:priv doorbell, preempt_reason:H_CEDE, enqueue_to_dispatch_time:212, ready_to_enqueue_time:0, waiting_to_ready_time:15355126
+. 00000180: dispatch_reason:decrementer interrupt, preempt_reason:H_CEDE, enqueue_to_dispatch_time:6368, ready_to_enqueue_time:164, waiting_to_ready_time:5104665
+
+Above is representation of dtl entry of below format:
+
+struct dtl_entry {
+ u8 dispatch_reason;
+ u8 preempt_reason;
+ u16 processor_id;
+ u32 enqueue_to_dispatch_time;
+ u32 ready_to_enqueue_time;
+ u32 waiting_to_ready_time;
+ u64 timebase;
+ u64 fault_addr;
+ u64 srr0;
+ u64 srr1;
+
+};
+
+First two fields represent the dispatch reason and preempt reason. The post
+processing of PERF_RECORD_AUXTRACE records will translate to meaningful data
+for user to consume.
+
+Visualize the dispatch trace log entries with perf report
+=========================================================
+
+.. code-block:: sh
+
+ # ./perf record -a -e sched:*,vpa_dtl/dtl_all/ -c 1000000000 sleep 1
+ [ perf record: Woken up 1 times to write data ]
+ [ perf record: Captured and wrote 0.300 MB perf.data ]
+
+ # ./perf report
+ # Samples: 321 of event 'vpa-dtl'
+ # Event count (approx.): 321
+ #
+ # Children Self Command Shared Object Symbol
+ # ........ ........ ....... ................. ..............................
+ #
+ 100.00% 100.00% swapper [kernel.kallsyms] [k] plpar_hcall_norets_notrace
+
+Visualize the dispatch trace log entries with perf script
+=========================================================
+
+.. code-block:: sh
+
+ # ./perf script
+ migration/9 67 [009] 105373.359903: sched:sched_waking: comm=perf pid=13418 prio=120 target_cpu=009
+ migration/9 67 [009] 105373.359904: sched:sched_migrate_task: comm=perf pid=13418 prio=120 orig_cpu=9 dest_cpu=10
+ migration/9 67 [009] 105373.359907: sched:sched_stat_runtime: comm=migration/9 pid=67 runtime=4050 [ns]
+ migration/9 67 [009] 105373.359908: sched:sched_switch: prev_comm=migration/9 prev_pid=67 prev_prio=0 prev_state=S ==> next_comm=swapper/9 next_pid=0 next_prio=120
+ :256 256 [016] 105373.359913: vpa-dtl: timebase: 21403600706628832 dispatch_reason:decrementer interrupt, preempt_reason:H_CEDE, enqueue_to_dispatch_time:4854, ready_to_enqueue_time:139, waiting_to_ready_time:511842115 c0000000000fcd28 plpar_hcall_norets_notrace+0x18 ([kernel.kallsyms])
+ :256 256 [017] 105373.360012: vpa-dtl: timebase: 21403600706679454 dispatch_reason:priv doorbell, preempt_reason:H_CEDE, enqueue_to_dispatch_time:236, ready_to_enqueue_time:0, waiting_to_ready_time:133864583 c0000000000fcd28 plpar_hcall_norets_notrace+0x18 ([kernel.kallsyms])
+ perf 13418 [010] 105373.360048: sched:sched_stat_runtime: comm=perf pid=13418 runtime=139748 [ns]
+ perf 13418 [010] 105373.360052: sched:sched_waking: comm=migration/10 pid=72 prio=0 target_cpu=010
diff --git a/Documentation/arch/riscv/acpi.rst b/Documentation/arch/riscv/acpi.rst
new file mode 100644
index 000000000000..9870a282815b
--- /dev/null
+++ b/Documentation/arch/riscv/acpi.rst
@@ -0,0 +1,10 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+==============
+ACPI on RISC-V
+==============
+
+The ISA string parsing rules for ACPI are defined by `Version ASCIIDOC
+Conversion, 12/2022 of the RISC-V specifications, as defined by tag
+"riscv-isa-release-1239329-2023-05-23" (commit 1239329
+) <https://github.com/riscv/riscv-isa-manual/releases/tag/riscv-isa-release-1239329-2023-05-23>`_
diff --git a/Documentation/arch/riscv/boot-image-header.rst b/Documentation/arch/riscv/boot-image-header.rst
new file mode 100644
index 000000000000..df2ffc173e80
--- /dev/null
+++ b/Documentation/arch/riscv/boot-image-header.rst
@@ -0,0 +1,59 @@
+=================================
+Boot image header in RISC-V Linux
+=================================
+
+:Author: Atish Patra <atish.patra@wdc.com>
+:Date: 20 May 2019
+
+This document only describes the boot image header details for RISC-V Linux.
+
+The following 64-byte header is present in decompressed Linux kernel image::
+
+ u32 code0; /* Executable code */
+ u32 code1; /* Executable code */
+ u64 text_offset; /* Image load offset, little endian */
+ u64 image_size; /* Effective Image size, little endian */
+ u64 flags; /* kernel flags, little endian */
+ u32 version; /* Version of this header */
+ u32 res1 = 0; /* Reserved */
+ u64 res2 = 0; /* Reserved */
+ u64 magic = 0x5643534952; /* Magic number, little endian, "RISCV" */
+ u32 magic2 = 0x05435352; /* Magic number 2, little endian, "RSC\x05" */
+ u32 res3; /* Reserved for PE COFF offset */
+
+This header format is compliant with PE/COFF header and largely inspired from
+ARM64 header. Thus, both ARM64 & RISC-V header can be combined into one common
+header in future.
+
+Notes
+=====
+
+- This header is also reused to support EFI stub for RISC-V. EFI specification
+ needs PE/COFF image header in the beginning of the kernel image in order to
+ load it as an EFI application. In order to support EFI stub, code0 is replaced
+ with "MZ" magic string and res3(at offset 0x3c) points to the rest of the
+ PE/COFF header.
+
+- version field indicate header version number
+
+ ========== =============
+ Bits 0:15 Minor version
+ Bits 16:31 Major version
+ ========== =============
+
+ This preserves compatibility across newer and older version of the header.
+ The current version is defined as 0.2.
+
+- The "magic" field is deprecated as of version 0.2. In a future
+ release, it may be removed. This originally should have matched up
+ with the ARM64 header "magic" field, but unfortunately does not.
+ The "magic2" field replaces it, matching up with the ARM64 header.
+
+- In current header, the flags field has only one field.
+
+ ===== ====================================
+ Bit 0 Kernel endianness. 1 if BE, 0 if LE.
+ ===== ====================================
+
+- Image size is mandatory for boot loader to load kernel image. Booting will
+ fail otherwise.
diff --git a/Documentation/arch/riscv/boot.rst b/Documentation/arch/riscv/boot.rst
new file mode 100644
index 000000000000..6077b587a842
--- /dev/null
+++ b/Documentation/arch/riscv/boot.rst
@@ -0,0 +1,169 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+===============================================
+RISC-V Kernel Boot Requirements and Constraints
+===============================================
+
+:Author: Alexandre Ghiti <alexghiti@rivosinc.com>
+:Date: 23 May 2023
+
+This document describes what the RISC-V kernel expects from bootloaders and
+firmware, and also the constraints that any developer must have in mind when
+touching the early boot process. For the purposes of this document, the
+``early boot process`` refers to any code that runs before the final virtual
+mapping is set up.
+
+Pre-kernel Requirements and Constraints
+=======================================
+
+The RISC-V kernel expects the following of bootloaders and platform firmware:
+
+Register state
+--------------
+
+The RISC-V kernel expects:
+
+ * ``$a0`` to contain the hartid of the current core.
+ * ``$a1`` to contain the address of the devicetree in memory.
+
+CSR state
+---------
+
+The RISC-V kernel expects:
+
+ * ``$satp = 0``: the MMU, if present, must be disabled.
+
+Reserved memory for resident firmware
+-------------------------------------
+
+The RISC-V kernel must not map any resident memory, or memory protected with
+PMPs, in the direct mapping, so the firmware must correctly mark those regions
+as per the devicetree specification and/or the UEFI specification.
+
+Kernel location
+---------------
+
+The RISC-V kernel expects to be placed at a PMD boundary (2MB aligned for rv64
+and 4MB aligned for rv32). Note that the EFI stub will physically relocate the
+kernel if that's not the case.
+
+Hardware description
+--------------------
+
+The firmware can pass either a devicetree or ACPI tables to the RISC-V kernel.
+
+The devicetree is either passed directly to the kernel from the previous stage
+using the ``$a1`` register, or when booting with UEFI, it can be passed using the
+EFI configuration table.
+
+The ACPI tables are passed to the kernel using the EFI configuration table. In
+this case, a tiny devicetree is still created by the EFI stub. Please refer to
+"EFI stub and devicetree" section below for details about this devicetree.
+
+Kernel entry
+------------
+
+On SMP systems, there are 2 methods to enter the kernel:
+
+- ``RISCV_BOOT_SPINWAIT``: the firmware releases all harts in the kernel, one hart
+ wins a lottery and executes the early boot code while the other harts are
+ parked waiting for the initialization to finish. This method is mostly used to
+ support older firmwares without SBI HSM extension and M-mode RISC-V kernel.
+- ``Ordered booting``: the firmware releases only one hart that will execute the
+ initialization phase and then will start all other harts using the SBI HSM
+ extension. The ordered booting method is the preferred booting method for
+ booting the RISC-V kernel because it can support CPU hotplug and kexec.
+
+UEFI
+----
+
+UEFI memory map
+~~~~~~~~~~~~~~~
+
+When booting with UEFI, the RISC-V kernel will use only the EFI memory map to
+populate the system memory.
+
+The UEFI firmware must parse the subnodes of the ``/reserved-memory`` devicetree
+node and abide by the devicetree specification to convert the attributes of
+those subnodes (``no-map`` and ``reusable``) into their correct EFI equivalent
+(refer to section "3.5.4 /reserved-memory and UEFI" of the devicetree
+specification v0.4-rc1).
+
+RISCV_EFI_BOOT_PROTOCOL
+~~~~~~~~~~~~~~~~~~~~~~~
+
+When booting with UEFI, the EFI stub requires the boot hartid in order to pass
+it to the RISC-V kernel in ``$a1``. The EFI stub retrieves the boot hartid using
+one of the following methods:
+
+- ``RISCV_EFI_BOOT_PROTOCOL`` (**preferred**).
+- ``boot-hartid`` devicetree subnode (**deprecated**).
+
+Any new firmware must implement ``RISCV_EFI_BOOT_PROTOCOL`` as the devicetree
+based approach is deprecated now.
+
+Early Boot Requirements and Constraints
+=======================================
+
+The RISC-V kernel's early boot process operates under the following constraints:
+
+EFI stub and devicetree
+-----------------------
+
+When booting with UEFI, the devicetree is supplemented (or created) by the EFI
+stub with the same parameters as arm64 which are described at the paragraph
+"UEFI kernel support on ARM" in Documentation/arch/arm/uefi.rst.
+
+Virtual mapping installation
+----------------------------
+
+The installation of the virtual mapping is done in 2 steps in the RISC-V kernel:
+
+1. ``setup_vm()`` installs a temporary kernel mapping in ``early_pg_dir`` which
+ allows discovery of the system memory. Only the kernel text/data are mapped
+ at this point. When establishing this mapping, no allocation can be done
+ (since the system memory is not known yet), so ``early_pg_dir`` page table is
+ statically allocated (using only one table for each level).
+
+2. ``setup_vm_final()`` creates the final kernel mapping in ``swapper_pg_dir``
+ and takes advantage of the discovered system memory to create the linear
+ mapping. When establishing this mapping, the kernel can allocate memory but
+ cannot access it directly (since the direct mapping is not present yet), so
+ it uses temporary mappings in the fixmap region to be able to access the
+ newly allocated page table levels.
+
+For ``virt_to_phys()`` and ``phys_to_virt()`` to be able to correctly convert
+direct mapping addresses to physical addresses, they need to know the start of
+the DRAM. This happens after step 1, right before step 2 installs the direct
+mapping (see ``setup_bootmem()`` function in arch/riscv/mm/init.c). Any usage of
+those macros before the final virtual mapping is installed must be carefully
+examined.
+
+Devicetree mapping via fixmap
+-----------------------------
+
+As the ``reserved_mem`` array is initialized with virtual addresses established
+by ``setup_vm()``, and used with the mapping established by
+``setup_vm_final()``, the RISC-V kernel uses the fixmap region to map the
+devicetree. This ensures that the devicetree remains accessible by both virtual
+mappings.
+
+Pre-MMU execution
+-----------------
+
+A few pieces of code need to run before even the first virtual mapping is
+established. These are the installation of the first virtual mapping itself,
+patching of early alternatives and the early parsing of the kernel command line.
+That code must be very carefully compiled as:
+
+- ``-fno-pie``: This is needed for relocatable kernels which use ``-fPIE``,
+ since otherwise, any access to a global symbol would go through the GOT which
+ is only relocated virtually.
+- ``-mcmodel=medany``: Any access to a global symbol must be PC-relative to
+ avoid any relocations to happen before the MMU is setup.
+- *all* instrumentation must also be disabled (that includes KASAN, ftrace and
+ others).
+
+As using a symbol from a different compilation unit requires this unit to be
+compiled with those flags, we advise, as much as possible, not to use external
+symbols.
diff --git a/Documentation/arch/riscv/cmodx.rst b/Documentation/arch/riscv/cmodx.rst
new file mode 100644
index 000000000000..40ba53bed5df
--- /dev/null
+++ b/Documentation/arch/riscv/cmodx.rst
@@ -0,0 +1,130 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+==============================================================================
+Concurrent Modification and Execution of Instructions (CMODX) for RISC-V Linux
+==============================================================================
+
+CMODX is a programming technique where a program executes instructions that were
+modified by the program itself. Instruction storage and the instruction cache
+(icache) are not guaranteed to be synchronized on RISC-V hardware. Therefore, the
+program must enforce its own synchronization with the unprivileged fence.i
+instruction.
+
+CMODX in the Kernel Space
+-------------------------
+
+Dynamic ftrace
+---------------------
+
+Essentially, dynamic ftrace directs the control flow by inserting a function
+call at each patchable function entry, and patches it dynamically at runtime to
+enable or disable the redirection. In the case of RISC-V, 2 instructions,
+AUIPC + JALR, are required to compose a function call. However, it is impossible
+to patch 2 instructions and expect that a concurrent read-side executes them
+without a race condition. This series makes atmoic code patching possible in
+RISC-V ftrace. Kernel preemption makes things even worse as it allows the old
+state to persist across the patching process with stop_machine().
+
+In order to get rid of stop_machine() and run dynamic ftrace with full kernel
+preemption, we partially initialize each patchable function entry at boot-time,
+setting the first instruction to AUIPC, and the second to NOP. Now, atmoic
+patching is possible because the kernel only has to update one instruction.
+According to Ziccif, as long as an instruction is naturally aligned, the ISA
+guarantee an atomic update.
+
+By fixing down the first instruction, AUIPC, the range of the ftrace trampoline
+is limited to +-2K from the predetermined target, ftrace_caller, due to the lack
+of immediate encoding space in RISC-V. To address the issue, we introduce
+CALL_OPS, where an 8B naturally align metadata is added in front of each
+pacthable function. The metadata is resolved at the first trampoline, then the
+execution can be derect to another custom trampoline.
+
+CMODX in the User Space
+-----------------------
+
+Though fence.i is an unprivileged instruction, the default Linux ABI prohibits
+the use of fence.i in userspace applications. At any point the scheduler may
+migrate a task onto a new hart. If migration occurs after the userspace
+synchronized the icache and instruction storage with fence.i, the icache on the
+new hart will no longer be clean. This is due to the behavior of fence.i only
+affecting the hart that it is called on. Thus, the hart that the task has been
+migrated to may not have synchronized instruction storage and icache.
+
+There are two ways to solve this problem: use the riscv_flush_icache() syscall,
+or use the ``PR_RISCV_SET_ICACHE_FLUSH_CTX`` prctl() and emit fence.i in
+userspace. The syscall performs a one-off icache flushing operation. The prctl
+changes the Linux ABI to allow userspace to emit icache flushing operations.
+
+As an aside, "deferred" icache flushes can sometimes be triggered in the kernel.
+At the time of writing, this only occurs during the riscv_flush_icache() syscall
+and when the kernel uses copy_to_user_page(). These deferred flushes happen only
+when the memory map being used by a hart changes. If the prctl() context caused
+an icache flush, this deferred icache flush will be skipped as it is redundant.
+Therefore, there will be no additional flush when using the riscv_flush_icache()
+syscall inside of the prctl() context.
+
+prctl() Interface
+---------------------
+
+Call prctl() with ``PR_RISCV_SET_ICACHE_FLUSH_CTX`` as the first argument. The
+remaining arguments will be delegated to the riscv_set_icache_flush_ctx
+function detailed below.
+
+.. kernel-doc:: arch/riscv/mm/cacheflush.c
+ :identifiers: riscv_set_icache_flush_ctx
+
+Example usage:
+
+The following files are meant to be compiled and linked with each other. The
+modify_instruction() function replaces an add with 0 with an add with one,
+causing the instruction sequence in get_value() to change from returning a zero
+to returning a one.
+
+cmodx.c::
+
+ #include <stdio.h>
+ #include <sys/prctl.h>
+
+ extern int get_value();
+ extern void modify_instruction();
+
+ int main()
+ {
+ int value = get_value();
+ printf("Value before cmodx: %d\n", value);
+
+ // Call prctl before first fence.i is called inside modify_instruction
+ prctl(PR_RISCV_SET_ICACHE_FLUSH_CTX, PR_RISCV_CTX_SW_FENCEI_ON, PR_RISCV_SCOPE_PER_PROCESS);
+ modify_instruction();
+ // Call prctl after final fence.i is called in process
+ prctl(PR_RISCV_SET_ICACHE_FLUSH_CTX, PR_RISCV_CTX_SW_FENCEI_OFF, PR_RISCV_SCOPE_PER_PROCESS);
+
+ value = get_value();
+ printf("Value after cmodx: %d\n", value);
+ return 0;
+ }
+
+cmodx.S::
+
+ .option norvc
+
+ .text
+ .global modify_instruction
+ modify_instruction:
+ lw a0, new_insn
+ lui a5,%hi(old_insn)
+ sw a0,%lo(old_insn)(a5)
+ fence.i
+ ret
+
+ .section modifiable, "awx"
+ .global get_value
+ get_value:
+ li a0, 0
+ old_insn:
+ addi a0, a0, 0
+ ret
+
+ .data
+ new_insn:
+ addi a0, a0, 1
diff --git a/Documentation/arch/riscv/features.rst b/Documentation/arch/riscv/features.rst
new file mode 100644
index 000000000000..36e90144adab
--- /dev/null
+++ b/Documentation/arch/riscv/features.rst
@@ -0,0 +1,3 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+.. kernel-feat:: features riscv
diff --git a/Documentation/arch/riscv/hwprobe.rst b/Documentation/arch/riscv/hwprobe.rst
new file mode 100644
index 000000000000..06c5280b728a
--- /dev/null
+++ b/Documentation/arch/riscv/hwprobe.rst
@@ -0,0 +1,381 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+RISC-V Hardware Probing Interface
+---------------------------------
+
+The RISC-V hardware probing interface is based around a single syscall, which
+is defined in <asm/hwprobe.h>::
+
+ struct riscv_hwprobe {
+ __s64 key;
+ __u64 value;
+ };
+
+ long sys_riscv_hwprobe(struct riscv_hwprobe *pairs, size_t pair_count,
+ size_t cpusetsize, cpu_set_t *cpus,
+ unsigned int flags);
+
+The arguments are split into three groups: an array of key-value pairs, a CPU
+set, and some flags. The key-value pairs are supplied with a count. Userspace
+must prepopulate the key field for each element, and the kernel will fill in the
+value if the key is recognized. If a key is unknown to the kernel, its key field
+will be cleared to -1, and its value set to 0. The CPU set is defined by
+CPU_SET(3) with size ``cpusetsize`` bytes. For value-like keys (eg. vendor,
+arch, impl), the returned value will only be valid if all CPUs in the given set
+have the same value. Otherwise -1 will be returned. For boolean-like keys, the
+value returned will be a logical AND of the values for the specified CPUs.
+Usermode can supply NULL for ``cpus`` and 0 for ``cpusetsize`` as a shortcut for
+all online CPUs. The currently supported flags are:
+
+* :c:macro:`RISCV_HWPROBE_WHICH_CPUS`: This flag basically reverses the behavior
+ of sys_riscv_hwprobe(). Instead of populating the values of keys for a given
+ set of CPUs, the values of each key are given and the set of CPUs is reduced
+ by sys_riscv_hwprobe() to only those which match each of the key-value pairs.
+ How matching is done depends on the key type. For value-like keys, matching
+ means to be the exact same as the value. For boolean-like keys, matching
+ means the result of a logical AND of the pair's value with the CPU's value is
+ exactly the same as the pair's value. Additionally, when ``cpus`` is an empty
+ set, then it is initialized to all online CPUs which fit within it, i.e. the
+ CPU set returned is the reduction of all the online CPUs which can be
+ represented with a CPU set of size ``cpusetsize``.
+
+All other flags are reserved for future compatibility and must be zero.
+
+On success 0 is returned, on failure a negative error code is returned.
+
+The following keys are defined:
+
+* :c:macro:`RISCV_HWPROBE_KEY_MVENDORID`: Contains the value of ``mvendorid``,
+ as defined by the RISC-V privileged architecture specification.
+
+* :c:macro:`RISCV_HWPROBE_KEY_MARCHID`: Contains the value of ``marchid``, as
+ defined by the RISC-V privileged architecture specification.
+
+* :c:macro:`RISCV_HWPROBE_KEY_MIMPID`: Contains the value of ``mimpid``, as
+ defined by the RISC-V privileged architecture specification.
+
+* :c:macro:`RISCV_HWPROBE_KEY_BASE_BEHAVIOR`: A bitmask containing the base
+ user-visible behavior that this kernel supports. The following base user ABIs
+ are defined:
+
+ * :c:macro:`RISCV_HWPROBE_BASE_BEHAVIOR_IMA`: Support for rv32ima or
+ rv64ima, as defined by version 2.2 of the user ISA and version 1.10 of the
+ privileged ISA, with the following known exceptions (more exceptions may be
+ added, but only if it can be demonstrated that the user ABI is not broken):
+
+ * The ``fence.i`` instruction cannot be directly executed by userspace
+ programs (it may still be executed in userspace via a
+ kernel-controlled mechanism such as the vDSO).
+
+* :c:macro:`RISCV_HWPROBE_KEY_IMA_EXT_0`: A bitmask containing the extensions
+ that are compatible with the :c:macro:`RISCV_HWPROBE_BASE_BEHAVIOR_IMA`:
+ base system behavior.
+
+ * :c:macro:`RISCV_HWPROBE_IMA_FD`: The F and D extensions are supported, as
+ defined by commit cd20cee ("FMIN/FMAX now implement
+ minimumNumber/maximumNumber, not minNum/maxNum") of the RISC-V ISA manual.
+
+ * :c:macro:`RISCV_HWPROBE_IMA_C`: The C extension is supported, as defined
+ by version 2.2 of the RISC-V ISA manual.
+
+ * :c:macro:`RISCV_HWPROBE_IMA_V`: The V extension is supported, as defined by
+ version 1.0 of the RISC-V Vector extension manual.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZBA`: The Zba address generation extension is
+ supported, as defined in version 1.0 of the Bit-Manipulation ISA
+ extensions.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZBB`: The Zbb extension is supported, as defined
+ in version 1.0 of the Bit-Manipulation ISA extensions.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZBS`: The Zbs extension is supported, as defined
+ in version 1.0 of the Bit-Manipulation ISA extensions.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZICBOZ`: The Zicboz extension is supported, as
+ ratified in commit 3dd606f ("Create cmobase-v1.0.pdf") of riscv-CMOs.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZBC` The Zbc extension is supported, as defined
+ in version 1.0 of the Bit-Manipulation ISA extensions.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZBKB` The Zbkb extension is supported, as
+ defined in version 1.0 of the Scalar Crypto ISA extensions.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZBKC` The Zbkc extension is supported, as
+ defined in version 1.0 of the Scalar Crypto ISA extensions.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZBKX` The Zbkx extension is supported, as
+ defined in version 1.0 of the Scalar Crypto ISA extensions.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZKND` The Zknd extension is supported, as
+ defined in version 1.0 of the Scalar Crypto ISA extensions.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZKNE` The Zkne extension is supported, as
+ defined in version 1.0 of the Scalar Crypto ISA extensions.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZKNH` The Zknh extension is supported, as
+ defined in version 1.0 of the Scalar Crypto ISA extensions.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZKSED` The Zksed extension is supported, as
+ defined in version 1.0 of the Scalar Crypto ISA extensions.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZKSH` The Zksh extension is supported, as
+ defined in version 1.0 of the Scalar Crypto ISA extensions.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZKT` The Zkt extension is supported, as defined
+ in version 1.0 of the Scalar Crypto ISA extensions.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZVBB`: The Zvbb extension is supported as
+ defined in version 1.0 of the RISC-V Cryptography Extensions Volume II.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZVBC`: The Zvbc extension is supported as
+ defined in version 1.0 of the RISC-V Cryptography Extensions Volume II.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZVKB`: The Zvkb extension is supported as
+ defined in version 1.0 of the RISC-V Cryptography Extensions Volume II.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZVKG`: The Zvkg extension is supported as
+ defined in version 1.0 of the RISC-V Cryptography Extensions Volume II.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZVKNED`: The Zvkned extension is supported as
+ defined in version 1.0 of the RISC-V Cryptography Extensions Volume II.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZVKNHA`: The Zvknha extension is supported as
+ defined in version 1.0 of the RISC-V Cryptography Extensions Volume II.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZVKNHB`: The Zvknhb extension is supported as
+ defined in version 1.0 of the RISC-V Cryptography Extensions Volume II.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZVKSED`: The Zvksed extension is supported as
+ defined in version 1.0 of the RISC-V Cryptography Extensions Volume II.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZVKSH`: The Zvksh extension is supported as
+ defined in version 1.0 of the RISC-V Cryptography Extensions Volume II.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZVKT`: The Zvkt extension is supported as
+ defined in version 1.0 of the RISC-V Cryptography Extensions Volume II.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZFH`: The Zfh extension version 1.0 is supported
+ as defined in the RISC-V ISA manual.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZFHMIN`: The Zfhmin extension version 1.0 is
+ supported as defined in the RISC-V ISA manual.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZIHINTNTL`: The Zihintntl extension version 1.0
+ is supported as defined in the RISC-V ISA manual.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZVFH`: The Zvfh extension is supported as
+ defined in the RISC-V Vector manual starting from commit e2ccd0548d6c
+ ("Remove draft warnings from Zvfh[min]").
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZVFHMIN`: The Zvfhmin extension is supported as
+ defined in the RISC-V Vector manual starting from commit e2ccd0548d6c
+ ("Remove draft warnings from Zvfh[min]").
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZFA`: The Zfa extension is supported as
+ defined in the RISC-V ISA manual starting from commit 056b6ff467c7
+ ("Zfa is ratified").
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZTSO`: The Ztso extension is supported as
+ defined in the RISC-V ISA manual starting from commit 5618fb5a216b
+ ("Ztso is now ratified.")
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZACAS`: The Zacas extension is supported as
+ defined in the Atomic Compare-and-Swap (CAS) instructions manual starting
+ from commit 5059e0ca641c ("update to ratified").
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZICNTR`: The Zicntr extension version 2.0
+ is supported as defined in the RISC-V ISA manual.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZICOND`: The Zicond extension is supported as
+ defined in the RISC-V Integer Conditional (Zicond) operations extension
+ manual starting from commit 95cf1f9 ("Add changes requested by Ved
+ during signoff")
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZIHINTPAUSE`: The Zihintpause extension is
+ supported as defined in the RISC-V ISA manual starting from commit
+ d8ab5c78c207 ("Zihintpause is ratified").
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZIHPM`: The Zihpm extension version 2.0
+ is supported as defined in the RISC-V ISA manual.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZVE32X`: The Vector sub-extension Zve32x is
+ supported, as defined by version 1.0 of the RISC-V Vector extension manual.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZVE32F`: The Vector sub-extension Zve32f is
+ supported, as defined by version 1.0 of the RISC-V Vector extension manual.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZVE64X`: The Vector sub-extension Zve64x is
+ supported, as defined by version 1.0 of the RISC-V Vector extension manual.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZVE64F`: The Vector sub-extension Zve64f is
+ supported, as defined by version 1.0 of the RISC-V Vector extension manual.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZVE64D`: The Vector sub-extension Zve64d is
+ supported, as defined by version 1.0 of the RISC-V Vector extension manual.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZIMOP`: The Zimop May-Be-Operations extension is
+ supported as defined in the RISC-V ISA manual starting from commit
+ 58220614a5f ("Zimop is ratified/1.0").
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZCA`: The Zca extension part of Zc* standard
+ extensions for code size reduction, as ratified in commit 8be3419c1c0
+ ("Zcf doesn't exist on RV64 as it contains no instructions") of
+ riscv-code-size-reduction.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZCB`: The Zcb extension part of Zc* standard
+ extensions for code size reduction, as ratified in commit 8be3419c1c0
+ ("Zcf doesn't exist on RV64 as it contains no instructions") of
+ riscv-code-size-reduction.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZCD`: The Zcd extension part of Zc* standard
+ extensions for code size reduction, as ratified in commit 8be3419c1c0
+ ("Zcf doesn't exist on RV64 as it contains no instructions") of
+ riscv-code-size-reduction.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZCF`: The Zcf extension part of Zc* standard
+ extensions for code size reduction, as ratified in commit 8be3419c1c0
+ ("Zcf doesn't exist on RV64 as it contains no instructions") of
+ riscv-code-size-reduction.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZCMOP`: The Zcmop May-Be-Operations extension is
+ supported as defined in the RISC-V ISA manual starting from commit
+ c732a4f39a4 ("Zcmop is ratified/1.0").
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZAWRS`: The Zawrs extension is supported as
+ ratified in commit 98918c844281 ("Merge pull request #1217 from
+ riscv/zawrs") of riscv-isa-manual.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZAAMO`: The Zaamo extension is supported as
+ defined in the in the RISC-V ISA manual starting from commit e87412e621f1
+ ("integrate Zaamo and Zalrsc text (#1304)").
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZALASR`: The Zalasr extension is supported as
+ frozen at commit 194f0094 ("Version 0.9 for freeze") of riscv-zalasr.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZALRSC`: The Zalrsc extension is supported as
+ defined in the in the RISC-V ISA manual starting from commit e87412e621f1
+ ("integrate Zaamo and Zalrsc text (#1304)").
+
+ * :c:macro:`RISCV_HWPROBE_EXT_SUPM`: The Supm extension is supported as
+ defined in version 1.0 of the RISC-V Pointer Masking extensions.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZFBFMIN`: The Zfbfmin extension is supported as
+ defined in the RISC-V ISA manual starting from commit 4dc23d6229de
+ ("Added Chapter title to BF16").
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZVFBFMIN`: The Zvfbfmin extension is supported as
+ defined in the RISC-V ISA manual starting from commit 4dc23d6229de
+ ("Added Chapter title to BF16").
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZVFBFWMA`: The Zvfbfwma extension is supported as
+ defined in the RISC-V ISA manual starting from commit 4dc23d6229de
+ ("Added Chapter title to BF16").
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZICBOM`: The Zicbom extension is supported, as
+ ratified in commit 3dd606f ("Create cmobase-v1.0.pdf") of riscv-CMOs.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZABHA`: The Zabha extension is supported as
+ ratified in commit 49f49c842ff9 ("Update to Rafified state") of
+ riscv-zabha.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZICBOP`: The Zicbop extension is supported, as
+ ratified in commit 3dd606f ("Create cmobase-v1.0.pdf") of riscv-CMOs.
+
+* :c:macro:`RISCV_HWPROBE_KEY_CPUPERF_0`: Deprecated. Returns similar values to
+ :c:macro:`RISCV_HWPROBE_KEY_MISALIGNED_SCALAR_PERF`, but the key was
+ mistakenly classified as a bitmask rather than a value.
+
+* :c:macro:`RISCV_HWPROBE_KEY_MISALIGNED_SCALAR_PERF`: An enum value describing
+ the performance of misaligned scalar native word accesses on the selected set
+ of processors.
+
+ * :c:macro:`RISCV_HWPROBE_MISALIGNED_SCALAR_UNKNOWN`: The performance of
+ misaligned scalar accesses is unknown.
+
+ * :c:macro:`RISCV_HWPROBE_MISALIGNED_SCALAR_EMULATED`: Misaligned scalar
+ accesses are emulated via software, either in or below the kernel. These
+ accesses are always extremely slow.
+
+ * :c:macro:`RISCV_HWPROBE_MISALIGNED_SCALAR_SLOW`: Misaligned scalar native
+ word sized accesses are slower than the equivalent quantity of byte
+ accesses. Misaligned accesses may be supported directly in hardware, or
+ trapped and emulated by software.
+
+ * :c:macro:`RISCV_HWPROBE_MISALIGNED_SCALAR_FAST`: Misaligned scalar native
+ word sized accesses are faster than the equivalent quantity of byte
+ accesses.
+
+ * :c:macro:`RISCV_HWPROBE_MISALIGNED_SCALAR_UNSUPPORTED`: Misaligned scalar
+ accesses are not supported at all and will generate a misaligned address
+ fault.
+
+* :c:macro:`RISCV_HWPROBE_KEY_ZICBOZ_BLOCK_SIZE`: An unsigned int which
+ represents the size of the Zicboz block in bytes.
+
+* :c:macro:`RISCV_HWPROBE_KEY_HIGHEST_VIRT_ADDRESS`: An unsigned long which
+ represent the highest userspace virtual address usable.
+
+* :c:macro:`RISCV_HWPROBE_KEY_TIME_CSR_FREQ`: Frequency (in Hz) of `time CSR`.
+
+* :c:macro:`RISCV_HWPROBE_KEY_MISALIGNED_VECTOR_PERF`: An enum value describing the
+ performance of misaligned vector accesses on the selected set of processors.
+
+ * :c:macro:`RISCV_HWPROBE_MISALIGNED_VECTOR_UNKNOWN`: The performance of misaligned
+ vector accesses is unknown.
+
+ * :c:macro:`RISCV_HWPROBE_MISALIGNED_VECTOR_SLOW`: 32-bit misaligned accesses using vector
+ registers are slower than the equivalent quantity of byte accesses via vector registers.
+ Misaligned accesses may be supported directly in hardware, or trapped and emulated by software.
+
+ * :c:macro:`RISCV_HWPROBE_MISALIGNED_VECTOR_FAST`: 32-bit misaligned accesses using vector
+ registers are faster than the equivalent quantity of byte accesses via vector registers.
+
+ * :c:macro:`RISCV_HWPROBE_MISALIGNED_VECTOR_UNSUPPORTED`: Misaligned vector accesses are
+ not supported at all and will generate a misaligned address fault.
+
+* :c:macro:`RISCV_HWPROBE_KEY_VENDOR_EXT_MIPS_0`: A bitmask containing the
+ mips vendor extensions that are compatible with the
+ :c:macro:`RISCV_HWPROBE_BASE_BEHAVIOR_IMA`: base system behavior.
+
+ * MIPS
+
+ * :c:macro:`RISCV_HWPROBE_VENDOR_EXT_XMIPSEXECTL`: The xmipsexectl vendor
+ extension is supported in the MIPS ISA extensions spec.
+
+* :c:macro:`RISCV_HWPROBE_KEY_VENDOR_EXT_THEAD_0`: A bitmask containing the
+ thead vendor extensions that are compatible with the
+ :c:macro:`RISCV_HWPROBE_BASE_BEHAVIOR_IMA`: base system behavior.
+
+ * T-HEAD
+
+ * :c:macro:`RISCV_HWPROBE_VENDOR_EXT_XTHEADVECTOR`: The xtheadvector vendor
+ extension is supported in the T-Head ISA extensions spec starting from
+ commit a18c801634 ("Add T-Head VECTOR vendor extension. ").
+
+* :c:macro:`RISCV_HWPROBE_KEY_ZICBOM_BLOCK_SIZE`: An unsigned int which
+ represents the size of the Zicbom block in bytes.
+
+* :c:macro:`RISCV_HWPROBE_KEY_VENDOR_EXT_SIFIVE_0`: A bitmask containing the
+ sifive vendor extensions that are compatible with the
+ :c:macro:`RISCV_HWPROBE_BASE_BEHAVIOR_IMA`: base system behavior.
+
+ * SIFIVE
+
+ * :c:macro:`RISCV_HWPROBE_VENDOR_EXT_XSFVQMACCDOD`: The Xsfqmaccdod vendor
+ extension is supported in version 1.1 of SiFive Int8 Matrix Multiplication
+ Extensions Specification.
+
+ * :c:macro:`RISCV_HWPROBE_VENDOR_EXT_XSFVQMACCQOQ`: The Xsfqmaccqoq vendor
+ extension is supported in version 1.1 of SiFive Int8 Matrix Multiplication
+ Instruction Extensions Specification.
+
+ * :c:macro:`RISCV_HWPROBE_VENDOR_EXT_XSFVFNRCLIPXFQF`: The Xsfvfnrclipxfqf
+ vendor extension is supported in version 1.0 of SiFive FP32-to-int8 Ranged
+ Clip Instructions Extensions Specification.
+
+ * :c:macro:`RISCV_HWPROBE_VENDOR_EXT_XSFVFWMACCQQQ`: The Xsfvfwmaccqqq
+ vendor extension is supported in version 1.0 of Matrix Multiply Accumulate
+ Instruction Extensions Specification.
+
+* :c:macro:`RISCV_HWPROBE_KEY_ZICBOP_BLOCK_SIZE`: An unsigned int which
+ represents the size of the Zicbop block in bytes.
diff --git a/Documentation/arch/riscv/index.rst b/Documentation/arch/riscv/index.rst
new file mode 100644
index 000000000000..eecf347ce849
--- /dev/null
+++ b/Documentation/arch/riscv/index.rst
@@ -0,0 +1,25 @@
+===================
+RISC-V architecture
+===================
+
+.. toctree::
+ :maxdepth: 1
+
+ acpi
+ boot
+ boot-image-header
+ vm-layout
+ hwprobe
+ patch-acceptance
+ uabi
+ vector
+ cmodx
+
+ features
+
+.. only:: subproject and html
+
+ Indices
+ =======
+
+ * :ref:`genindex`
diff --git a/Documentation/arch/riscv/patch-acceptance.rst b/Documentation/arch/riscv/patch-acceptance.rst
new file mode 100644
index 000000000000..634aa222b410
--- /dev/null
+++ b/Documentation/arch/riscv/patch-acceptance.rst
@@ -0,0 +1,59 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+arch/riscv maintenance guidelines for developers
+================================================
+
+Overview
+--------
+The RISC-V instruction set architecture is developed in the open:
+in-progress drafts are available for all to review and to experiment
+with implementations. New module or extension drafts can change
+during the development process - sometimes in ways that are
+incompatible with previous drafts. This flexibility can present a
+challenge for RISC-V Linux maintenance. Linux maintainers disapprove
+of churn, and the Linux development process prefers well-reviewed and
+tested code over experimental code. We wish to extend these same
+principles to the RISC-V-related code that will be accepted for
+inclusion in the kernel.
+
+Patchwork
+---------
+
+RISC-V has a patchwork instance, where the status of patches can be checked:
+
+ https://patchwork.kernel.org/project/linux-riscv/list/
+
+If your patch does not appear in the default view, the RISC-V maintainers have
+likely either requested changes, or expect it to be applied to another tree.
+
+Automation runs against this patchwork instance, building/testing patches as
+they arrive. The automation applies patches against the current HEAD of the
+RISC-V `for-next` and `fixes` branches, depending on whether the patch has been
+detected as a fix. Failing those, it will use the RISC-V `master` branch.
+The exact commit to which a series has been applied will be noted on patchwork.
+Patches for which any of the checks fail are unlikely to be applied and in most
+cases will need to be resubmitted.
+
+Submit Checklist Addendum
+-------------------------
+We'll only accept patches for new modules or extensions if the
+specifications for those modules or extensions are listed as being
+unlikely to be incompatibly changed in the future. For
+specifications from the RISC-V foundation this means "Frozen" or
+"Ratified", for the UEFI forum specifications this means a published
+ECR. (Developers may, of course, maintain their own Linux kernel trees
+that contain code for any draft extensions that they wish.)
+
+Additionally, the RISC-V specification allows implementers to create
+their own custom extensions. These custom extensions aren't required
+to go through any review or ratification process by the RISC-V
+Foundation. To avoid the maintenance complexity and potential
+performance impact of adding kernel code for implementor-specific
+RISC-V extensions, we'll only consider patches for extensions that either:
+
+- Have been officially frozen or ratified by the RISC-V Foundation, or
+- Have been implemented in hardware that is widely available, per standard
+ Linux practice.
+
+(Implementers, may, of course, maintain their own Linux kernel trees containing
+code for any custom extensions that they wish.)
diff --git a/Documentation/arch/riscv/uabi.rst b/Documentation/arch/riscv/uabi.rst
new file mode 100644
index 000000000000..243e40062e34
--- /dev/null
+++ b/Documentation/arch/riscv/uabi.rst
@@ -0,0 +1,86 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+RISC-V Linux User ABI
+=====================
+
+ISA string ordering in /proc/cpuinfo
+------------------------------------
+
+The canonical order of ISA extension names in the ISA string is defined in
+chapter 27 of the unprivileged specification.
+The specification uses vague wording, such as should, when it comes to ordering,
+so for our purposes the following rules apply:
+
+#. Single-letter extensions come first, in canonical order.
+ The canonical order is "IMAFDQLCBKJTPVH".
+
+#. All multi-letter extensions will be separated from other extensions by an
+ underscore.
+
+#. Additional standard extensions (starting with 'Z') will be sorted after
+ single-letter extensions and before any higher-privileged extensions.
+
+#. For additional standard extensions, the first letter following the 'Z'
+ conventionally indicates the most closely related alphabetical
+ extension category. If multiple 'Z' extensions are named, they will be
+ ordered first by category, in canonical order, as listed above, then
+ alphabetically within a category.
+
+#. Standard supervisor-level extensions (starting with 'S') will be listed
+ after standard unprivileged extensions. If multiple supervisor-level
+ extensions are listed, they will be ordered alphabetically.
+
+#. Standard machine-level extensions (starting with 'Zxm') will be listed
+ after any lower-privileged, standard extensions. If multiple machine-level
+ extensions are listed, they will be ordered alphabetically.
+
+#. Non-standard extensions (starting with 'X') will be listed after all standard
+ extensions. If multiple non-standard extensions are listed, they will be
+ ordered alphabetically.
+
+An example string following the order is::
+
+ rv64imadc_zifoo_zigoo_zafoo_sbar_scar_zxmbaz_xqux_xrux
+
+"isa" and "hart isa" lines in /proc/cpuinfo
+-------------------------------------------
+
+The "isa" line in /proc/cpuinfo describes the lowest common denominator of
+RISC-V ISA extensions recognized by the kernel and implemented on all harts. The
+"hart isa" line, in contrast, describes the set of extensions recognized by the
+kernel on the particular hart being described, even if those extensions may not
+be present on all harts in the system.
+
+In both lines, the presence of an extension guarantees only that the hardware
+has the described capability. Additional kernel support or policy changes may be
+required before an extension's capability is fully usable by userspace programs.
+Similarly, for S-mode extensions, presence in one of these lines does not
+guarantee that the kernel is taking advantage of the extension, or that the
+feature will be visible in guest VMs managed by this kernel.
+
+Inversely, the absence of an extension in these lines does not necessarily mean
+the hardware does not support that feature. The running kernel may not recognize
+the extension, or may have deliberately removed it from the listing.
+
+Misaligned accesses
+-------------------
+
+Misaligned scalar accesses are supported in userspace, but they may perform
+poorly. Misaligned vector accesses are only supported if the Zicclsm extension
+is supported.
+
+Pointer masking
+---------------
+
+Support for pointer masking in userspace (the Supm extension) is provided via
+the ``PR_SET_TAGGED_ADDR_CTRL`` and ``PR_GET_TAGGED_ADDR_CTRL`` ``prctl()``
+operations. Pointer masking is disabled by default. To enable it, userspace
+must call ``PR_SET_TAGGED_ADDR_CTRL`` with the ``PR_PMLEN`` field set to the
+number of mask/tag bits needed by the application. ``PR_PMLEN`` is interpreted
+as a lower bound; if the kernel is unable to satisfy the request, the
+``PR_SET_TAGGED_ADDR_CTRL`` operation will fail. The actual number of tag bits
+is returned in ``PR_PMLEN`` by the ``PR_GET_TAGGED_ADDR_CTRL`` operation.
+
+Additionally, when pointer masking is enabled (``PR_PMLEN`` is greater than 0),
+a tagged address ABI is supported, with the same interface and behavior as
+documented for AArch64 (Documentation/arch/arm64/tagged-address-abi.rst).
diff --git a/Documentation/arch/riscv/vector.rst b/Documentation/arch/riscv/vector.rst
new file mode 100644
index 000000000000..3987f5f76a9d
--- /dev/null
+++ b/Documentation/arch/riscv/vector.rst
@@ -0,0 +1,140 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=========================================
+Vector Extension Support for RISC-V Linux
+=========================================
+
+This document briefly outlines the interface provided to userspace by Linux in
+order to support the use of the RISC-V Vector Extension.
+
+1. prctl() Interface
+---------------------
+
+Two new prctl() calls are added to allow programs to manage the enablement
+status for the use of Vector in userspace. The intended usage guideline for
+these interfaces is to give init systems a way to modify the availability of V
+for processes running under its domain. Calling these interfaces is not
+recommended in libraries routines because libraries should not override policies
+configured from the parent process. Also, users must note that these interfaces
+are not portable to non-Linux, nor non-RISC-V environments, so it is discourage
+to use in a portable code. To get the availability of V in an ELF program,
+please read :c:macro:`COMPAT_HWCAP_ISA_V` bit of :c:macro:`ELF_HWCAP` in the
+auxiliary vector.
+
+* prctl(PR_RISCV_V_SET_CONTROL, unsigned long arg)
+
+ Sets the Vector enablement status of the calling thread, where the control
+ argument consists of two 2-bit enablement statuses and a bit for inheritance
+ mode. Other threads of the calling process are unaffected.
+
+ Enablement status is a tri-state value each occupying 2-bit of space in
+ the control argument:
+
+ * :c:macro:`PR_RISCV_V_VSTATE_CTRL_DEFAULT`: Use the system-wide default
+ enablement status on execve(). The system-wide default setting can be
+ controlled via sysctl interface (see sysctl section below).
+
+ * :c:macro:`PR_RISCV_V_VSTATE_CTRL_ON`: Allow Vector to be run for the
+ thread.
+
+ * :c:macro:`PR_RISCV_V_VSTATE_CTRL_OFF`: Disallow Vector. Executing Vector
+ instructions under such condition will trap and casuse the termination of the thread.
+
+ arg: The control argument is a 5-bit value consisting of 3 parts, and
+ accessed by 3 masks respectively.
+
+ The 3 masks, PR_RISCV_V_VSTATE_CTRL_CUR_MASK,
+ PR_RISCV_V_VSTATE_CTRL_NEXT_MASK, and PR_RISCV_V_VSTATE_CTRL_INHERIT
+ represents bit[1:0], bit[3:2], and bit[4]. bit[1:0] accounts for the
+ enablement status of current thread, and the setting at bit[3:2] takes place
+ at next execve(). bit[4] defines the inheritance mode of the setting in
+ bit[3:2].
+
+ * :c:macro:`PR_RISCV_V_VSTATE_CTRL_CUR_MASK`: bit[1:0]: Account for the
+ Vector enablement status for the calling thread. The calling thread is
+ not able to turn off Vector once it has been enabled. The prctl() call
+ fails with EPERM if the value in this mask is PR_RISCV_V_VSTATE_CTRL_OFF
+ but the current enablement status is not off. Setting
+ PR_RISCV_V_VSTATE_CTRL_DEFAULT here takes no effect but to set back
+ the original enablement status.
+
+ * :c:macro:`PR_RISCV_V_VSTATE_CTRL_NEXT_MASK`: bit[3:2]: Account for the
+ Vector enablement setting for the calling thread at the next execve()
+ system call. If PR_RISCV_V_VSTATE_CTRL_DEFAULT is used in this mask,
+ then the enablement status will be decided by the system-wide
+ enablement status when execve() happen.
+
+ * :c:macro:`PR_RISCV_V_VSTATE_CTRL_INHERIT`: bit[4]: the inheritance
+ mode for the setting at PR_RISCV_V_VSTATE_CTRL_NEXT_MASK. If the bit
+ is set then the following execve() will not clear the setting in both
+ PR_RISCV_V_VSTATE_CTRL_NEXT_MASK and PR_RISCV_V_VSTATE_CTRL_INHERIT.
+ This setting persists across changes in the system-wide default value.
+
+ Return value:
+ * 0 on success;
+ * EINVAL: Vector not supported, invalid enablement status for current or
+ next mask;
+ * EPERM: Turning off Vector in PR_RISCV_V_VSTATE_CTRL_CUR_MASK if Vector
+ was enabled for the calling thread.
+
+ On success:
+ * A valid setting for PR_RISCV_V_VSTATE_CTRL_CUR_MASK takes place
+ immediately. The enablement status specified in
+ PR_RISCV_V_VSTATE_CTRL_NEXT_MASK happens at the next execve() call, or
+ all following execve() calls if PR_RISCV_V_VSTATE_CTRL_INHERIT bit is
+ set.
+ * Every successful call overwrites a previous setting for the calling
+ thread.
+
+* prctl(PR_RISCV_V_GET_CONTROL)
+
+ Gets the same Vector enablement status for the calling thread. Setting for
+ next execve() call and the inheritance bit are all OR-ed together.
+
+ Note that ELF programs are able to get the availability of V for itself by
+ reading :c:macro:`COMPAT_HWCAP_ISA_V` bit of :c:macro:`ELF_HWCAP` in the
+ auxiliary vector.
+
+ Return value:
+ * a nonnegative value on success;
+ * EINVAL: Vector not supported.
+
+2. System runtime configuration (sysctl)
+-----------------------------------------
+
+To mitigate the ABI impact of expansion of the signal stack, a
+policy mechanism is provided to the administrators, distro maintainers, and
+developers to control the default Vector enablement status for userspace
+processes in form of sysctl knob:
+
+* /proc/sys/abi/riscv_v_default_allow
+
+ Writing the text representation of 0 or 1 to this file sets the default
+ system enablement status for new starting userspace programs. Valid values
+ are:
+
+ * 0: Do not allow Vector code to be executed as the default for new processes.
+ * 1: Allow Vector code to be executed as the default for new processes.
+
+ Reading this file returns the current system default enablement status.
+
+ At every execve() call, a new enablement status of the new process is set to
+ the system default, unless:
+
+ * PR_RISCV_V_VSTATE_CTRL_INHERIT is set for the calling process, and the
+ setting in PR_RISCV_V_VSTATE_CTRL_NEXT_MASK is not
+ PR_RISCV_V_VSTATE_CTRL_DEFAULT. Or,
+
+ * The setting in PR_RISCV_V_VSTATE_CTRL_NEXT_MASK is not
+ PR_RISCV_V_VSTATE_CTRL_DEFAULT.
+
+ Modifying the system default enablement status does not affect the enablement
+ status of any existing process of thread that do not make an execve() call.
+
+3. Vector Register State Across System Calls
+---------------------------------------------
+
+As indicated by version 1.0 of the V extension [1], vector registers are
+clobbered by system calls.
+
+1: https://github.com/riscv/riscv-v-spec/blob/master/calling-convention.adoc
diff --git a/Documentation/arch/riscv/vm-layout.rst b/Documentation/arch/riscv/vm-layout.rst
new file mode 100644
index 000000000000..eabec99b5852
--- /dev/null
+++ b/Documentation/arch/riscv/vm-layout.rst
@@ -0,0 +1,136 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=====================================
+Virtual Memory Layout on RISC-V Linux
+=====================================
+
+:Author: Alexandre Ghiti <alex@ghiti.fr>
+:Date: 12 February 2021
+
+This document describes the virtual memory layout used by the RISC-V Linux
+Kernel.
+
+RISC-V Linux Kernel 32bit
+=========================
+
+RISC-V Linux Kernel SV32
+------------------------
+
+TODO
+
+RISC-V Linux Kernel 64bit
+=========================
+
+The RISC-V privileged architecture document states that the 64bit addresses
+"must have bits 63–48 all equal to bit 47, or else a page-fault exception will
+occur.": that splits the virtual address space into 2 halves separated by a very
+big hole, the lower half is where the userspace resides, the upper half is where
+the RISC-V Linux Kernel resides.
+
+RISC-V Linux Kernel SV39
+------------------------
+
+::
+
+ ========================================================================================================================
+ Start addr | Offset | End addr | Size | VM area description
+ ========================================================================================================================
+ | | | |
+ 0000000000000000 | 0 | 0000003fffffffff | 256 GB | user-space virtual memory, different per mm
+ __________________|____________|__________________|_________|___________________________________________________________
+ | | | |
+ 0000004000000000 | +256 GB | ffffffbfffffffff | ~16M TB | ... huge, almost 64 bits wide hole of non-canonical
+ | | | | virtual memory addresses up to the -256 GB
+ | | | | starting offset of kernel mappings.
+ __________________|____________|__________________|_________|___________________________________________________________
+ |
+ | Kernel-space virtual memory, shared between all processes:
+ ____________________________________________________________|___________________________________________________________
+ | | | |
+ ffffffc4fea00000 | -236 GB | ffffffc4feffffff | 6 MB | fixmap
+ ffffffc4ff000000 | -236 GB | ffffffc4ffffffff | 16 MB | PCI io
+ ffffffc500000000 | -236 GB | ffffffc5ffffffff | 4 GB | vmemmap
+ ffffffc600000000 | -232 GB | ffffffd5ffffffff | 64 GB | vmalloc/ioremap space
+ ffffffd600000000 | -168 GB | fffffff5ffffffff | 128 GB | direct mapping of all physical memory
+ | | | |
+ fffffff700000000 | -36 GB | fffffffeffffffff | 32 GB | kasan
+ __________________|____________|__________________|_________|____________________________________________________________
+ |
+ |
+ ____________________________________________________________|____________________________________________________________
+ | | | |
+ ffffffff00000000 | -4 GB | ffffffff7fffffff | 2 GB | modules, BPF
+ ffffffff80000000 | -2 GB | ffffffffffffffff | 2 GB | kernel
+ __________________|____________|__________________|_________|____________________________________________________________
+
+
+RISC-V Linux Kernel SV48
+------------------------
+
+::
+
+ ========================================================================================================================
+ Start addr | Offset | End addr | Size | VM area description
+ ========================================================================================================================
+ | | | |
+ 0000000000000000 | 0 | 00007fffffffffff | 128 TB | user-space virtual memory, different per mm
+ __________________|____________|__________________|_________|___________________________________________________________
+ | | | |
+ 0000800000000000 | +128 TB | ffff7fffffffffff | ~16M TB | ... huge, almost 64 bits wide hole of non-canonical
+ | | | | virtual memory addresses up to the -128 TB
+ | | | | starting offset of kernel mappings.
+ __________________|____________|__________________|_________|___________________________________________________________
+ |
+ | Kernel-space virtual memory, shared between all processes:
+ ____________________________________________________________|___________________________________________________________
+ | | | |
+ ffff8d7ffea00000 | -114.5 TB | ffff8d7ffeffffff | 6 MB | fixmap
+ ffff8d7fff000000 | -114.5 TB | ffff8d7fffffffff | 16 MB | PCI io
+ ffff8d8000000000 | -114.5 TB | ffff8f7fffffffff | 2 TB | vmemmap
+ ffff8f8000000000 | -112.5 TB | ffffaf7fffffffff | 32 TB | vmalloc/ioremap space
+ ffffaf8000000000 | -80.5 TB | ffffef7fffffffff | 64 TB | direct mapping of all physical memory
+ ffffef8000000000 | -16.5 TB | fffffffeffffffff | 16.5 TB | kasan
+ __________________|____________|__________________|_________|____________________________________________________________
+ |
+ | Identical layout to the 39-bit one from here on:
+ ____________________________________________________________|____________________________________________________________
+ | | | |
+ ffffffff00000000 | -4 GB | ffffffff7fffffff | 2 GB | modules, BPF
+ ffffffff80000000 | -2 GB | ffffffffffffffff | 2 GB | kernel
+ __________________|____________|__________________|_________|____________________________________________________________
+
+
+RISC-V Linux Kernel SV57
+------------------------
+
+::
+
+ ========================================================================================================================
+ Start addr | Offset | End addr | Size | VM area description
+ ========================================================================================================================
+ | | | |
+ 0000000000000000 | 0 | 00ffffffffffffff | 64 PB | user-space virtual memory, different per mm
+ __________________|____________|__________________|_________|___________________________________________________________
+ | | | |
+ 0100000000000000 | +64 PB | feffffffffffffff | ~16K PB | ... huge, almost 64 bits wide hole of non-canonical
+ | | | | virtual memory addresses up to the -64 PB
+ | | | | starting offset of kernel mappings.
+ __________________|____________|__________________|_________|___________________________________________________________
+ |
+ | Kernel-space virtual memory, shared between all processes:
+ ____________________________________________________________|___________________________________________________________
+ | | | |
+ ff1bfffffea00000 | -57 PB | ff1bfffffeffffff | 6 MB | fixmap
+ ff1bffffff000000 | -57 PB | ff1bffffffffffff | 16 MB | PCI io
+ ff1c000000000000 | -57 PB | ff1fffffffffffff | 1 PB | vmemmap
+ ff20000000000000 | -56 PB | ff5fffffffffffff | 16 PB | vmalloc/ioremap space
+ ff60000000000000 | -40 PB | ffdeffffffffffff | 32 PB | direct mapping of all physical memory
+ ffdf000000000000 | -8 PB | fffffffeffffffff | 8 PB | kasan
+ __________________|____________|__________________|_________|____________________________________________________________
+ |
+ | Identical layout to the 39-bit one from here on:
+ ____________________________________________________________|____________________________________________________________
+ | | | |
+ ffffffff00000000 | -4 GB | ffffffff7fffffff | 2 GB | modules, BPF
+ ffffffff80000000 | -2 GB | ffffffffffffffff | 2 GB | kernel
+ __________________|____________|__________________|_________|____________________________________________________________
diff --git a/Documentation/s390/3270.ChangeLog b/Documentation/arch/s390/3270.ChangeLog
index ecaf60b6c381..ecaf60b6c381 100644
--- a/Documentation/s390/3270.ChangeLog
+++ b/Documentation/arch/s390/3270.ChangeLog
diff --git a/Documentation/s390/3270.rst b/Documentation/arch/s390/3270.rst
index e09e77954238..467eace91473 100644
--- a/Documentation/s390/3270.rst
+++ b/Documentation/arch/s390/3270.rst
@@ -116,7 +116,7 @@ Here are the installation steps in detail:
as a 3270, not a 3215.
5. Run the 3270 configuration script config3270. It is
- distributed in this same directory, Documentation/s390, as
+ distributed in this same directory, Documentation/arch/s390, as
config3270.sh. Inspect the output script it produces,
/tmp/mkdev3270, and then run that script. This will create the
necessary character special device files and make the necessary
@@ -125,7 +125,7 @@ Here are the installation steps in detail:
Then notify /sbin/init that /etc/inittab has changed, by issuing
the telinit command with the q operand::
- cd Documentation/s390
+ cd Documentation/arch/s390
sh config3270.sh
sh /tmp/mkdev3270
telinit q
diff --git a/Documentation/s390/cds.rst b/Documentation/arch/s390/cds.rst
index 7006d8209d2e..bcad2a14244a 100644
--- a/Documentation/s390/cds.rst
+++ b/Documentation/arch/s390/cds.rst
@@ -39,7 +39,7 @@ some of them are ESA/390 platform specific.
Note:
In order to write a driver for S/390, you also need to look into the interface
- described in Documentation/s390/driver-model.rst.
+ described in Documentation/arch/s390/driver-model.rst.
Note for porting drivers from 2.4:
diff --git a/Documentation/s390/common_io.rst b/Documentation/arch/s390/common_io.rst
index 846485681ce7..6dcb40cb7145 100644
--- a/Documentation/s390/common_io.rst
+++ b/Documentation/arch/s390/common_io.rst
@@ -136,5 +136,5 @@ debugfs entries
The level of logging can be changed to be more or less verbose by piping to
/sys/kernel/debug/s390dbf/cio_*/level a number between 0 and 6; see the
- documentation on the S/390 debug feature (Documentation/s390/s390dbf.rst)
+ documentation on the S/390 debug feature (Documentation/arch/s390/s390dbf.rst)
for details.
diff --git a/Documentation/s390/config3270.sh b/Documentation/arch/s390/config3270.sh
index 515e2f431487..515e2f431487 100644
--- a/Documentation/s390/config3270.sh
+++ b/Documentation/arch/s390/config3270.sh
diff --git a/Documentation/s390/driver-model.rst b/Documentation/arch/s390/driver-model.rst
index ad4bc2dbea43..e7488f02bb78 100644
--- a/Documentation/s390/driver-model.rst
+++ b/Documentation/arch/s390/driver-model.rst
@@ -244,7 +244,7 @@ information about the interrupt from the irb parameter.
--------------------
The ccwgroup mechanism is designed to handle devices consisting of multiple ccw
-devices, like lcs or ctc.
+devices, like qeth or ctc.
The ccw driver provides a 'group' attribute. Piping bus ids of ccw devices to
this attributes creates a ccwgroup device consisting of these ccw devices (if
@@ -305,24 +305,3 @@ xpram shows up under devices/system/ as 'xpram'.
For each cpu, a directory is created under devices/system/cpu/. Each cpu has an
attribute 'online' which can be 0 or 1.
-
-
-4. Other devices
-----------------
-
-4.1 Netiucv
------------
-
-The netiucv driver creates an attribute 'connection' under
-bus/iucv/drivers/netiucv. Piping to this attribute creates a new netiucv
-connection to the specified host.
-
-Netiucv connections show up under devices/iucv/ as "netiucv<ifnum>". The interface
-number is assigned sequentially to the connections defined via the 'connection'
-attribute.
-
-user
- - shows the connection partner.
-
-buffer
- - maximum buffer size. Pipe to it to change buffer size.
diff --git a/Documentation/arch/s390/features.rst b/Documentation/arch/s390/features.rst
new file mode 100644
index 000000000000..2883dc950681
--- /dev/null
+++ b/Documentation/arch/s390/features.rst
@@ -0,0 +1,3 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+.. kernel-feat:: features s390
diff --git a/Documentation/arch/s390/index.rst b/Documentation/arch/s390/index.rst
new file mode 100644
index 000000000000..e75a6e5d2505
--- /dev/null
+++ b/Documentation/arch/s390/index.rst
@@ -0,0 +1,31 @@
+=================
+s390 Architecture
+=================
+
+.. toctree::
+ :maxdepth: 1
+
+ cds
+ 3270
+ driver-model
+ mm
+ monreader
+ qeth
+ s390dbf
+ vfio-ap
+ vfio-ap-locking
+ vfio-ccw
+ zfcpdump
+ common_io
+ pci
+
+ text_files
+
+ features
+
+.. only:: subproject and html
+
+ Indices
+ =======
+
+ * :ref:`genindex`
diff --git a/Documentation/arch/s390/mm.rst b/Documentation/arch/s390/mm.rst
new file mode 100644
index 000000000000..084adad5eef9
--- /dev/null
+++ b/Documentation/arch/s390/mm.rst
@@ -0,0 +1,111 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=================
+Memory Management
+=================
+
+Virtual memory layout
+=====================
+
+.. note::
+
+ - Some aspects of the virtual memory layout setup are not
+ clarified (number of page levels, alignment, DMA memory).
+
+ - Unused gaps in the virtual memory layout could be present
+ or not - depending on how partucular system is configured.
+ No page tables are created for the unused gaps.
+
+ - The virtual memory regions are tracked or untracked by KASAN
+ instrumentation, as well as the KASAN shadow memory itself is
+ created only when CONFIG_KASAN configuration option is enabled.
+
+::
+
+ =============================================================================
+ | Physical | Virtual | VM area description
+ =============================================================================
+ +- 0 --------------+- 0 --------------+
+ | | S390_lowcore | Low-address memory
+ | +- 8 KB -----------+
+ | | |
+ | | |
+ | | ... unused gap | KASAN untracked
+ | | |
+ +- AMODE31_START --+- AMODE31_START --+ .amode31 rand. phys/virt start
+ |.amode31 text/data|.amode31 text/data| KASAN untracked
+ +- AMODE31_END ----+- AMODE31_END ----+ .amode31 rand. phys/virt end (<2GB)
+ | | |
+ | | |
+ +- __kaslr_offset_phys | kernel rand. phys start
+ | | |
+ | kernel text/data | |
+ | | |
+ +------------------+ | kernel phys end
+ | | |
+ | | |
+ | | |
+ | | |
+ +- ident_map_size -+ |
+ | |
+ | ... unused gap | KASAN untracked
+ | |
+ +- __identity_base + identity mapping start (>= 2GB)
+ | |
+ | identity | phys == virt - __identity_base
+ | mapping | virt == phys + __identity_base
+ | |
+ | | KASAN tracked
+ | |
+ | |
+ | |
+ | |
+ | |
+ | |
+ | |
+ | |
+ | |
+ | |
+ | |
+ | |
+ | |
+ | |
+ | |
+ +---- vmemmap -----+ 'struct page' array start
+ | |
+ | virtually mapped |
+ | memory map | KASAN untracked
+ | |
+ +- __abs_lowcore --+
+ | |
+ | Absolute Lowcore | KASAN untracked
+ | |
+ +- __memcpy_real_area
+ | |
+ | Real Memory Copy| KASAN untracked
+ | |
+ +- VMALLOC_START --+ vmalloc area start
+ | | KASAN untracked or
+ | vmalloc area | KASAN shallowly populated in case
+ | | CONFIG_KASAN_VMALLOC=y
+ +- MODULES_VADDR --+ modules area start
+ | | KASAN allocated per module or
+ | modules area | KASAN shallowly populated in case
+ | | CONFIG_KASAN_VMALLOC=y
+ +- __kaslr_offset -+ kernel rand. virt start
+ | | KASAN tracked
+ | kernel text/data | phys == (kvirt - __kaslr_offset) +
+ | | __kaslr_offset_phys
+ +- kernel .bss end + kernel rand. virt end
+ | |
+ | ... unused gap | KASAN untracked
+ | |
+ +------------------+ UltraVisor Secure Storage limit
+ | |
+ | ... unused gap | KASAN untracked
+ | |
+ +KASAN_SHADOW_START+ KASAN shadow memory start
+ | |
+ | KASAN shadow | KASAN untracked
+ | |
+ +------------------+ ASCE limit
diff --git a/Documentation/s390/monreader.rst b/Documentation/arch/s390/monreader.rst
index 21cdfb699b49..21cdfb699b49 100644
--- a/Documentation/s390/monreader.rst
+++ b/Documentation/arch/s390/monreader.rst
diff --git a/Documentation/s390/pci.rst b/Documentation/arch/s390/pci.rst
index a1a72a47dc96..d5755484d8e7 100644
--- a/Documentation/s390/pci.rst
+++ b/Documentation/arch/s390/pci.rst
@@ -40,7 +40,7 @@ For example:
Change the level of logging to be more or less verbose by piping
a number between 0 and 6 to /sys/kernel/debug/s390dbf/pci_*/level. For
details, see the documentation on the S/390 debug feature at
- Documentation/s390/s390dbf.rst.
+ Documentation/arch/s390/s390dbf.rst.
Sysfs entries
=============
diff --git a/Documentation/s390/qeth.rst b/Documentation/arch/s390/qeth.rst
index f02fdaa68de0..f02fdaa68de0 100644
--- a/Documentation/s390/qeth.rst
+++ b/Documentation/arch/s390/qeth.rst
diff --git a/Documentation/s390/s390dbf.rst b/Documentation/arch/s390/s390dbf.rst
index af8bdc3629e7..aad6d88974fe 100644
--- a/Documentation/s390/s390dbf.rst
+++ b/Documentation/arch/s390/s390dbf.rst
@@ -243,9 +243,8 @@ Examples:
Changing the size of debug areas
------------------------------------
-It is possible the change the size of debug areas through piping
-the number of pages to the debugfs file "pages". The resize request will
-also flush the debug areas.
+To resize a debug area, write the desired page count to the "pages" file.
+Existing data is preserved if it fits; otherwise, oldest entries are dropped.
Example:
diff --git a/Documentation/s390/text_files.rst b/Documentation/arch/s390/text_files.rst
index c94d05d4fa17..c94d05d4fa17 100644
--- a/Documentation/s390/text_files.rst
+++ b/Documentation/arch/s390/text_files.rst
diff --git a/Documentation/s390/vfio-ap-locking.rst b/Documentation/arch/s390/vfio-ap-locking.rst
index 0dfcdb562e21..0dfcdb562e21 100644
--- a/Documentation/s390/vfio-ap-locking.rst
+++ b/Documentation/arch/s390/vfio-ap-locking.rst
diff --git a/Documentation/s390/vfio-ap.rst b/Documentation/arch/s390/vfio-ap.rst
index d46e98c7c1ec..eba1991fbdba 100644
--- a/Documentation/s390/vfio-ap.rst
+++ b/Documentation/arch/s390/vfio-ap.rst
@@ -380,6 +380,36 @@ matrix device.
control_domains:
A read-only file for displaying the control domain numbers assigned to the
vfio_ap mediated device.
+ ap_config:
+ A read/write file that, when written to, allows all three of the
+ vfio_ap mediated device's ap matrix masks to be replaced in one shot.
+ Three masks are given, one for adapters, one for domains, and one for
+ control domains. If the given state cannot be set then no changes are
+ made to the vfio-ap mediated device.
+
+ The format of the data written to ap_config is as follows:
+ {amask},{dmask},{cmask}\n
+
+ \n is a newline character.
+
+ amask, dmask, and cmask are masks identifying which adapters, domains,
+ and control domains should be assigned to the mediated device.
+
+ The format of a mask is as follows:
+ 0xNN..NN
+
+ Where NN..NN is 64 hexadecimal characters representing a 256-bit value.
+ The leftmost (highest order) bit represents adapter/domain 0.
+
+ For an example set of masks that represent your mdev's current
+ configuration, simply cat ap_config.
+
+ Setting an adapter or domain number greater than the maximum allowed for
+ the system will result in an error.
+
+ This attribute is intended to be used by automation. End users would be
+ better served using the respective assign/unassign attributes for
+ adapters, domains, and control domains.
* functions:
@@ -422,7 +452,7 @@ Configure the guest's AP resources
Configuring the AP resources for a KVM guest will be performed when the
VFIO_GROUP_NOTIFY_SET_KVM notifier callback is invoked. The notifier
function is called when userspace connects to KVM. The guest's AP resources are
-configured via it's APCB by:
+configured via its APCB by:
* Setting the bits in the APM corresponding to the APIDs assigned to the
vfio_ap mediated device via its 'assign_adapter' interface.
@@ -550,8 +580,7 @@ These are the steps:
following Kconfig elements selected:
* IOMMU_SUPPORT
* S390
- * ZCRYPT
- * S390_AP_IOMMU
+ * AP
* VFIO
* KVM
@@ -970,6 +999,36 @@ the vfio_ap mediated device to which it is assigned as long as each new APQN
resulting from plugging it in references a queue device bound to the vfio_ap
device driver.
+Driver Features
+===============
+The vfio_ap driver exposes a sysfs file containing supported features.
+This exists so third party tools (like Libvirt and mdevctl) can query the
+availability of specific features.
+
+The features list can be found here: /sys/bus/matrix/devices/matrix/features
+
+Entries are space delimited. Each entry consists of a combination of
+alphanumeric and underscore characters.
+
+Example:
+cat /sys/bus/matrix/devices/matrix/features
+guest_matrix dyn ap_config
+
+the following features are advertised:
+
+---------------+---------------------------------------------------------------+
+| Flag | Description |
++==============+===============================================================+
+| guest_matrix | guest_matrix attribute exists. It reports the matrix of |
+| | adapters and domains that are or will be passed through to a |
+| | guest when the mdev is attached to it. |
++--------------+---------------------------------------------------------------+
+| dyn | Indicates hot plug/unplug of AP adapters, domains and control |
+| | domains for a guest to which the mdev is attached. |
++------------+-----------------------------------------------------------------+
+| ap_config | ap_config interface for one-shot modifications to mdev config |
++--------------+---------------------------------------------------------------+
+
Limitations
===========
Live guest migration is not supported for guests using AP devices without
diff --git a/Documentation/s390/vfio-ccw.rst b/Documentation/arch/s390/vfio-ccw.rst
index 37026fa18179..42960b7b0d70 100644
--- a/Documentation/s390/vfio-ccw.rst
+++ b/Documentation/arch/s390/vfio-ccw.rst
@@ -440,6 +440,6 @@ Reference
1. ESA/s390 Principles of Operation manual (IBM Form. No. SA22-7832)
2. ESA/390 Common I/O Device Commands manual (IBM Form. No. SA22-7204)
3. https://en.wikipedia.org/wiki/Channel_I/O
-4. Documentation/s390/cds.rst
+4. Documentation/arch/s390/cds.rst
5. Documentation/driver-api/vfio.rst
6. Documentation/driver-api/vfio-mediated-device.rst
diff --git a/Documentation/s390/zfcpdump.rst b/Documentation/arch/s390/zfcpdump.rst
index a61de7aa8778..a61de7aa8778 100644
--- a/Documentation/s390/zfcpdump.rst
+++ b/Documentation/arch/s390/zfcpdump.rst
diff --git a/Documentation/arch/sh/features.rst b/Documentation/arch/sh/features.rst
index f722af3b6c99..fae48fe81e9b 100644
--- a/Documentation/arch/sh/features.rst
+++ b/Documentation/arch/sh/features.rst
@@ -1,3 +1,3 @@
.. SPDX-License-Identifier: GPL-2.0
-.. kernel-feat:: $srctree/Documentation/features sh
+.. kernel-feat:: features sh
diff --git a/Documentation/arch/sh/index.rst b/Documentation/arch/sh/index.rst
index c64776738cf6..01fce7c131f1 100644
--- a/Documentation/arch/sh/index.rst
+++ b/Documentation/arch/sh/index.rst
@@ -43,12 +43,6 @@ mach-x3proto
Busses
======
-SuperHyway
-----------
-
-.. kernel-doc:: drivers/sh/superhyway/superhyway.c
- :export:
-
Maple
-----
diff --git a/Documentation/arch/sparc/features.rst b/Documentation/arch/sparc/features.rst
index c0c92468b0fe..96835b6d598a 100644
--- a/Documentation/arch/sparc/features.rst
+++ b/Documentation/arch/sparc/features.rst
@@ -1,3 +1,3 @@
.. SPDX-License-Identifier: GPL-2.0
-.. kernel-feat:: $srctree/Documentation/features sparc
+.. kernel-feat:: features sparc
diff --git a/Documentation/arch/sparc/oradax/dax-hv-api.txt b/Documentation/arch/sparc/oradax/dax-hv-api.txt
index 7ecd0bf4957b..ef1a4c2bf08b 100644
--- a/Documentation/arch/sparc/oradax/dax-hv-api.txt
+++ b/Documentation/arch/sparc/oradax/dax-hv-api.txt
@@ -41,7 +41,7 @@ Chapter 36. Coprocessor services
submissions until they succeed; waiting for an outstanding CCB to complete is not necessary, and would
not be a guarantee that a future submission would succeed.
- The availablility of DAX coprocessor command service is indicated by the presence of the DAX virtual
+ The availability of DAX coprocessor command service is indicated by the presence of the DAX virtual
device node in the guest MD (Section 8.24.17, “Database Analytics Accelerators (DAX) virtual-device
node”).
diff --git a/Documentation/arch/x86/amd-debugging.rst b/Documentation/arch/x86/amd-debugging.rst
new file mode 100644
index 000000000000..d92bf59d62c7
--- /dev/null
+++ b/Documentation/arch/x86/amd-debugging.rst
@@ -0,0 +1,368 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Debugging AMD Zen systems
++++++++++++++++++++++++++
+
+Introduction
+============
+
+This document describes techniques that are useful for debugging issues with
+AMD Zen systems. It is intended for use by developers and technical users
+to help identify and resolve issues.
+
+S3 vs s2idle
+============
+
+On AMD systems, it's not possible to simultaneously support suspend-to-RAM (S3)
+and suspend-to-idle (s2idle). To confirm which mode your system supports you
+can look at ``cat /sys/power/mem_sleep``. If it shows ``s2idle [deep]`` then
+*S3* is supported. If it shows ``[s2idle]`` then *s2idle* is
+supported.
+
+On systems that support *S3*, the firmware will be utilized to put all hardware into
+the appropriate low power state.
+
+On systems that support *s2idle*, the kernel will be responsible for transitioning devices
+into the appropriate low power state. When all devices are in the appropriate low
+power state, the hardware will transition into a hardware sleep state.
+
+After a suspend cycle you can tell how much time was spent in a hardware sleep
+state by looking at ``cat /sys/power/suspend_stats/last_hw_sleep``.
+
+This flowchart explains how the AMD s2idle suspend flow works.
+
+.. kernel-figure:: suspend.svg
+
+This flowchart explains how the amd s2idle resume flow works.
+
+.. kernel-figure:: resume.svg
+
+s2idle debugging tool
+=====================
+
+As there are a lot of places that problems can occur, a debugging tool has been
+created at
+`amd-debug-tools <https://git.kernel.org/pub/scm/linux/kernel/git/superm1/amd-debug-tools.git/about/>`_
+that can help test for common problems and offer suggestions.
+
+If you have an s2idle issue, it's best to start with this and follow instructions
+from its findings. If you continue to have an issue, raise a bug with the
+report generated from this script to
+`drm/amd gitlab <https://gitlab.freedesktop.org/drm/amd/-/issues/new?issuable_template=s2idle_BUG_TEMPLATE>`_.
+
+Spurious s2idle wakeups from an IRQ
+===================================
+
+Spurious wakeups will generally have an IRQ set to ``/sys/power/pm_wakeup_irq``.
+This can be matched to ``/proc/interrupts`` to determine what device woke the system.
+
+If this isn't enough to debug the problem, then the following sysfs files
+can be set to add more verbosity to the wakeup process: ::
+
+ # echo 1 | sudo tee /sys/power/pm_debug_messages
+ # echo 1 | sudo tee /sys/power/pm_print_times
+
+After making those changes, the kernel will display messages that can
+be traced back to kernel s2idle loop code as well as display any active
+GPIO sources while waking up.
+
+If the wakeup is caused by the ACPI SCI, additional ACPI debugging may be
+needed. These commands can enable additional trace data: ::
+
+ # echo enable | sudo tee /sys/module/acpi/parameters/trace_state
+ # echo 1 | sudo tee /sys/module/acpi/parameters/aml_debug_output
+ # echo 0x0800000f | sudo tee /sys/module/acpi/parameters/debug_level
+ # echo 0xffff0000 | sudo tee /sys/module/acpi/parameters/debug_layer
+
+Spurious s2idle wakeups from a GPIO
+===================================
+
+If a GPIO is active when waking up the system ideally you would look at the
+schematic to determine what device it is associated with. If the schematic
+is not available, another tactic is to look at the ACPI _EVT() entry
+to determine what device is notified when that GPIO is active.
+
+For a hypothetical example, say that GPIO 59 woke up the system. You can
+look at the SSDT to determine what device is notified when GPIO 59 is active.
+
+First convert the GPIO number into hex. ::
+
+ $ python3 -c "print(hex(59))"
+ 0x3b
+
+Next determine which ACPI table has the ``_EVT`` entry. For example: ::
+
+ $ sudo grep EVT /sys/firmware/acpi/tables/SSDT*
+ grep: /sys/firmware/acpi/tables/SSDT27: binary file matches
+
+Decode this table::
+
+ $ sudo cp /sys/firmware/acpi/tables/SSDT27 .
+ $ sudo iasl -d SSDT27
+
+Then look at the table and find the matching entry for GPIO 0x3b. ::
+
+ Case (0x3B)
+ {
+ M000 (0x393B)
+ M460 (" Notify (\\_SB.PCI0.GP17.XHC1, 0x02)\n", Zero, Zero, Zero, Zero, Zero, Zero)
+ Notify (\_SB.PCI0.GP17.XHC1, 0x02) // Device Wake
+ }
+
+You can see in this case that the device ``\_SB.PCI0.GP17.XHC1`` is notified
+when GPIO 59 is active. It's obvious this is an XHCI controller, but to go a
+step further you can figure out which XHCI controller it is by matching it to
+ACPI.::
+
+ $ grep "PCI0.GP17.XHC1" /sys/bus/acpi/devices/*/path
+ /sys/bus/acpi/devices/device:2d/path:\_SB_.PCI0.GP17.XHC1
+ /sys/bus/acpi/devices/device:2e/path:\_SB_.PCI0.GP17.XHC1.RHUB
+ /sys/bus/acpi/devices/device:2f/path:\_SB_.PCI0.GP17.XHC1.RHUB.PRT1
+ /sys/bus/acpi/devices/device:30/path:\_SB_.PCI0.GP17.XHC1.RHUB.PRT1.CAM0
+ /sys/bus/acpi/devices/device:31/path:\_SB_.PCI0.GP17.XHC1.RHUB.PRT1.CAM1
+ /sys/bus/acpi/devices/device:32/path:\_SB_.PCI0.GP17.XHC1.RHUB.PRT2
+ /sys/bus/acpi/devices/LNXPOWER:0d/path:\_SB_.PCI0.GP17.XHC1.PWRS
+
+Here you can see it matches to ``device:2d``. Look at the ``physical_node``
+to determine what PCI device that actually is. ::
+
+ $ ls -l /sys/bus/acpi/devices/device:2d/physical_node
+ lrwxrwxrwx 1 root root 0 Feb 12 13:22 /sys/bus/acpi/devices/device:2d/physical_node -> ../../../../../pci0000:00/0000:00:08.1/0000:c2:00.4
+
+So there you have it: the PCI device associated with this GPIO wakeup was ``0000:c2:00.4``.
+
+The ``amd_s2idle.py`` script will capture most of these artifacts for you.
+
+s2idle PM debug messages
+========================
+
+During the s2idle flow on AMD systems, the ACPI LPS0 driver is responsible
+to check all uPEP constraints. Failing uPEP constraints does not prevent
+s0i3 entry. This means that if some constraints are not met, it is possible
+the kernel may attempt to enter s2idle even if there are some known issues.
+
+To activate PM debugging, either specify ``pm_debug_messagess`` kernel
+command-line option at boot or write to ``/sys/power/pm_debug_messages``.
+Unmet constraints will be displayed in the kernel log and can be
+viewed by logging tools that process kernel ring buffer like ``dmesg`` or
+``journalctl``."
+
+If the system freezes on entry/exit before these messages are flushed, a
+useful debugging tactic is to unbind the ``amd_pmc`` driver to prevent
+notification to the platform to start s0i3 entry. This will stop the
+system from freezing on entry or exit and let you view all the failed
+constraints. ::
+
+ cd /sys/bus/platform/drivers/amd_pmc
+ ls | grep AMD | sudo tee unbind
+
+After doing this, run the suspend cycle and look specifically for errors around: ::
+
+ ACPI: LPI: Constraint not met; min power state:%s current power state:%s
+
+Historical examples of s2idle issues
+====================================
+
+To help understand the types of issues that can occur and how to debug them,
+here are some historical examples of s2idle issues that have been resolved.
+
+Core offlining
+--------------
+An end user had reported that taking a core offline would prevent the system
+from properly entering s0i3. This was debugged using internal AMD tools
+to capture and display a stream of metrics from the hardware showing what changed
+when a core was offlined. It was determined that the hardware didn't get
+notification the offline cores were in the deepest state, and so it prevented
+CPU from going into the deepest state. The issue was debugged to a missing
+command to put cores into C3 upon offline.
+
+`commit d6b88ce2eb9d2 ("ACPI: processor idle: Allow playing dead in C3 state") <https://git.kernel.org/torvalds/c/d6b88ce2eb9d2>`_
+
+Corruption after resume
+-----------------------
+A big problem that occurred with Rembrandt was that there was graphical
+corruption after resume. This happened because of a misalignment of PSP
+and driver responsibility. The PSP will save and restore DMCUB, but the
+driver assumed it needed to reset DMCUB on resume.
+This actually was a misalignment for earlier silicon as well, but was not
+observed.
+
+`commit 79d6b9351f086 ("drm/amd/display: Don't reinitialize DMCUB on s0ix resume") <https://git.kernel.org/torvalds/c/79d6b9351f086>`_
+
+Back to Back suspends fail
+--------------------------
+When using a wakeup source that triggers the IRQ to wakeup, a bug in the
+pinctrl-amd driver may capture the wrong state of the IRQ and prevent the
+system going back to sleep properly.
+
+`commit b8c824a869f22 ("pinctrl: amd: Don't save/restore interrupt status and wake status bits") <https://git.kernel.org/torvalds/c/b8c824a869f22>`_
+
+Spurious timer based wakeup after 5 minutes
+-------------------------------------------
+The HPET was being used to program the wakeup source for the system, however
+this was causing a spurious wakeup after 5 minutes. The correct alarm to use
+was the ACPI alarm.
+
+`commit 3d762e21d5637 ("rtc: cmos: Use ACPI alarm for non-Intel x86 systems too") <https://git.kernel.org/torvalds/c/3d762e21d5637>`_
+
+Disk disappears after resume
+----------------------------
+After resuming from s2idle, the NVME disk would disappear. This was due to the
+BIOS not specifying the _DSD StorageD3Enable property. This caused the NVME
+driver not to put the disk into the expected state at suspend and to fail
+on resume.
+
+`commit e79a10652bbd3 ("ACPI: x86: Force StorageD3Enable on more products") <https://git.kernel.org/torvalds/c/e79a10652bbd3>`_
+
+Spurious IRQ1
+-------------
+A number of Renoir, Lucienne, Cezanne, & Barcelo platforms have a
+platform firmware bug where IRQ1 is triggered during s0i3 resume.
+
+This was fixed in the platform firmware, but a number of systems didn't
+receive any more platform firmware updates.
+
+`commit 8e60615e89321 ("platform/x86/amd: pmc: Disable IRQ1 wakeup for RN/CZN") <https://git.kernel.org/torvalds/c/8e60615e89321>`_
+
+Hardware timeout
+----------------
+The hardware performs many actions besides accepting the values from
+amd-pmc driver. As the communication path with the hardware is a mailbox,
+it's possible that it might not respond quickly enough.
+This issue manifested as a failure to suspend: ::
+
+ PM: dpm_run_callback(): acpi_subsys_suspend_noirq+0x0/0x50 returns -110
+ amd_pmc AMDI0005:00: PM: failed to suspend noirq: error -110
+
+The timing problem was identified by comparing the values of the idle mask.
+
+`commit 3c3c8e88c8712 ("platform/x86: amd-pmc: Increase the response register timeout") <https://git.kernel.org/torvalds/c/3c3c8e88c8712>`_
+
+Failed to reach hardware sleep state with panel on
+--------------------------------------------------
+On some Strix systems certain panels were observed to block the system from
+entering a hardware sleep state if the internal panel was on during the sequence.
+
+Even though the panel got turned off during suspend it exposed a timing problem
+where an interrupt caused the display hardware to wake up and block low power
+state entry.
+
+`commit 40b8c14936bd2 ("drm/amd/display: Disable unneeded hpd interrupts during dm_init") <https://git.kernel.org/torvalds/c/40b8c14936bd2>`_
+
+Runtime power consumption issues
+================================
+
+Runtime power consumption is influenced by many factors, including but not
+limited to the configuration of the PCIe Active State Power Management (ASPM),
+the display brightness, the EPP policy of the CPU, and the power management
+of the devices.
+
+ASPM
+----
+For the best runtime power consumption, ASPM should be programmed as intended
+by the BIOS from the hardware vendor. To accomplish this the Linux kernel
+should be compiled with ``CONFIG_PCIEASPM_DEFAULT`` set to ``y`` and the
+sysfs file ``/sys/module/pcie_aspm/parameters/policy`` should not be modified.
+
+Most notably, if L1.2 is not configured properly for any devices, the SoC
+will not be able to enter the deepest idle state.
+
+EPP Policy
+----------
+The ``energy_performance_preference`` sysfs file can be used to set a bias
+of efficiency or performance for a CPU. This has a direct relationship on
+the battery life when more heavily biased towards performance.
+
+
+BIOS debug messages
+===================
+
+Most OEM machines don't have a serial UART for outputting kernel or BIOS
+debug messages. However BIOS debug messages are useful for understanding
+both BIOS bugs and bugs with the Linux kernel drivers that call BIOS AML.
+
+As the BIOS on most OEM AMD systems are based off an AMD reference BIOS,
+the infrastructure used for exporting debugging messages is often the same
+as AMD reference BIOS.
+
+Manually Parsing
+----------------
+There is generally an ACPI method ``\M460`` that different paths of the AML
+will call to emit a message to the BIOS serial log. This method takes
+7 arguments, with the first being a string and the rest being optional
+integers::
+
+ Method (M460, 7, Serialized)
+
+Here is an example of a string that BIOS AML may call out using ``\M460``::
+
+ M460 (" OEM-ASL-PCIe Address (0x%X)._REG (%d %d) PCSA = %d\n", DADR, Arg0, Arg1, PCSA, Zero, Zero)
+
+Normally when executed, the ``\M460`` method would populate the additional
+arguments into the string. In order to get these messages from the Linux
+kernel a hook has been added into ACPICA that can capture the *arguments*
+sent to ``\M460`` and print them to the kernel ring buffer.
+For example the following message could be emitted into kernel ring buffer::
+
+ extrace-0174 ex_trace_args : " OEM-ASL-PCIe Address (0x%X)._REG (%d %d) PCSA = %d\n", ec106000, 2, 1, 1, 0, 0
+
+In order to get these messages, you need to compile with ``CONFIG_ACPI_DEBUG``
+and then turn on the following ACPICA tracing parameters.
+This can be done either on the kernel command line or at runtime:
+
+* ``acpi.trace_method_name=\M460``
+* ``acpi.trace_state=method``
+
+NOTE: These can be very noisy at bootup. If you turn these parameters on
+the kernel command, please also consider turning up ``CONFIG_LOG_BUF_SHIFT``
+to a larger size such as 17 to avoid losing early boot messages.
+
+Tool assisted Parsing
+---------------------
+As mentioned above, parsing by hand can be tedious, especially with a lot of
+messages. To help with this, a tool has been created at
+`amd-debug-tools <https://git.kernel.org/pub/scm/linux/kernel/git/superm1/amd-debug-tools.git/about/>`_
+to help parse the messages.
+
+Random reboot issues
+====================
+
+When a random reboot occurs, the high-level reason for the reboot is stored
+in a register that will persist onto the next boot.
+
+There are 6 classes of reasons for the reboot:
+ * Software induced
+ * Power state transition
+ * Pin induced
+ * Hardware induced
+ * Remote reset
+ * Internal CPU event
+
+.. csv-table::
+ :header: "Bit", "Type", "Reason"
+ :align: left
+
+ "0", "Pin", "thermal pin BP_THERMTRIP_L was tripped"
+ "1", "Pin", "power button was pressed for 4 seconds"
+ "2", "Pin", "shutdown pin was tripped"
+ "4", "Remote", "remote ASF power off command was received"
+ "9", "Internal", "internal CPU thermal limit was tripped"
+ "16", "Pin", "system reset pin BP_SYS_RST_L was tripped"
+ "17", "Software", "software issued PCI reset"
+ "18", "Software", "software wrote 0x4 to reset control register 0xCF9"
+ "19", "Software", "software wrote 0x6 to reset control register 0xCF9"
+ "20", "Software", "software wrote 0xE to reset control register 0xCF9"
+ "21", "ACPI-state", "ACPI power state transition occurred"
+ "22", "Pin", "keyboard reset pin KB_RST_L was tripped"
+ "23", "Internal", "internal CPU shutdown event occurred"
+ "24", "Hardware", "system failed to boot before failed boot timer expired"
+ "25", "Hardware", "hardware watchdog timer expired"
+ "26", "Remote", "remote ASF reset command was received"
+ "27", "Internal", "an uncorrected error caused a data fabric sync flood event"
+ "29", "Internal", "FCH and MP1 failed warm reset handshake"
+ "30", "Internal", "a parity error occurred"
+ "31", "Internal", "a software sync flood event occurred"
+
+This information is read by the kernel at bootup and printed into
+the syslog. When a random reboot occurs this message can be helpful
+to determine the next component to debug.
diff --git a/Documentation/arch/x86/amd-hfi.rst b/Documentation/arch/x86/amd-hfi.rst
new file mode 100644
index 000000000000..bf3d3a1985a2
--- /dev/null
+++ b/Documentation/arch/x86/amd-hfi.rst
@@ -0,0 +1,133 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+======================================================================
+Hardware Feedback Interface For Hetero Core Scheduling On AMD Platform
+======================================================================
+
+:Copyright: 2025 Advanced Micro Devices, Inc. All Rights Reserved.
+
+:Author: Perry Yuan <perry.yuan@amd.com>
+:Author: Mario Limonciello <mario.limonciello@amd.com>
+
+Overview
+--------
+
+AMD Heterogeneous Core implementations are comprised of more than one
+architectural class and CPUs are comprised of cores of various efficiency and
+power capabilities: performance-oriented *classic cores* and power-efficient
+*dense cores*. As such, power management strategies must be designed to
+accommodate the complexities introduced by incorporating different core types.
+Heterogeneous systems can also extend to more than two architectural classes
+as well. The purpose of the scheduling feedback mechanism is to provide
+information to the operating system scheduler in real time such that the
+scheduler can direct threads to the optimal core.
+
+The goal of AMD's heterogeneous architecture is to attain power benefit by
+sending background threads to the dense cores while sending high priority
+threads to the classic cores. From a performance perspective, sending
+background threads to dense cores can free up power headroom and allow the
+classic cores to optimally service demanding threads. Furthermore, the area
+optimized nature of the dense cores allows for an increasing number of
+physical cores. This improved core density will have positive multithreaded
+performance impact.
+
+AMD Heterogeneous Core Driver
+-----------------------------
+
+The ``amd_hfi`` driver delivers the operating system a performance and energy
+efficiency capability data for each CPU in the system. The scheduler can use
+the ranking data from the HFI driver to make task placement decisions.
+
+Thread Classification and Ranking Table Interaction
+----------------------------------------------------
+
+The thread classification is used to select into a ranking table that
+describes an efficiency and performance ranking for each classification.
+
+Threads are classified during runtime into enumerated classes. The classes
+represent thread performance/power characteristics that may benefit from
+special scheduling behaviors. The below table depicts an example of thread
+classification and a preference where a given thread should be scheduled
+based on its thread class. The real time thread classification is consumed
+by the operating system and is used to inform the scheduler of where the
+thread should be placed.
+
+Thread Classification Example Table
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
++----------+----------------+-------------------------------+---------------------+---------+
+| class ID | Classification | Preferred scheduling behavior | Preemption priority | Counter |
++----------+----------------+-------------------------------+---------------------+---------+
+| 0 | Default | Performant | Highest | |
++----------+----------------+-------------------------------+---------------------+---------+
+| 1 | Non-scalable | Efficient | Lowest | PMCx1A1 |
++----------+----------------+-------------------------------+---------------------+---------+
+| 2 | I/O bound | Efficient | Lowest | PMCx044 |
++----------+----------------+-------------------------------+---------------------+---------+
+
+Thread classification is performed by the hardware each time that the thread is switched out.
+Threads that don't meet any hardware specified criteria are classified as "default".
+
+AMD Hardware Feedback Interface
+--------------------------------
+
+The Hardware Feedback Interface provides to the operating system information
+about the performance and energy efficiency of each CPU in the system. Each
+capability is given as a unit-less quantity in the range [0-255]. A higher
+performance value indicates higher performance capability, and a higher
+efficiency value indicates more efficiency. Energy efficiency and performance
+are reported in separate capabilities in the shared memory based ranking table.
+
+These capabilities may change at runtime as a result of changes in the
+operating conditions of the system or the action of external factors.
+Power Management firmware is responsible for detecting events that require
+a reordering of the performance and efficiency ranking. Table updates happen
+relatively infrequently and occur on the time scale of seconds or more.
+
+The following events trigger a table update:
+ * Thermal Stress Events
+ * Silent Compute
+ * Extreme Low Battery Scenarios
+
+The kernel or a userspace policy daemon can use these capabilities to modify
+task placement decisions. For instance, if either the performance or energy
+capabilities of a given logical processor becomes zero, it is an indication
+that the hardware recommends to the operating system to not schedule any tasks
+on that processor for performance or energy efficiency reasons, respectively.
+
+Implementation details for Linux
+--------------------------------
+
+The implementation of threads scheduling consists of the following steps:
+
+1. A thread is spawned and scheduled to the ideal core using the default
+ heterogeneous scheduling policy.
+2. The processor profiles thread execution and assigns an enumerated
+ classification ID.
+ This classification is communicated to the OS via logical processor
+ scope MSR.
+3. During the thread context switch out the operating system consumes the
+ workload (WL) classification which resides in a logical processor scope MSR.
+4. The OS triggers the hardware to clear its history by writing to an MSR,
+ after consuming the WL classification and before switching in the new thread.
+5. If due to the classification, ranking table, and processor availability,
+ the thread is not on its ideal processor, the OS will then consider
+ scheduling the thread on its ideal processor (if available).
+
+Ranking Table
+-------------
+The ranking table is a shared memory region that is used to communicate the
+performance and energy efficiency capabilities of each CPU in the system.
+
+The ranking table design includes rankings for each APIC ID in the system and
+rankings both for performance and efficiency for each workload classification.
+
+.. kernel-doc:: drivers/platform/x86/amd/hfi/hfi.c
+ :doc: amd_shmem_info
+
+Ranking Table update
+---------------------------
+The power management firmware issues an platform interrupt after updating the
+ranking table and is ready for the operating system to consume it. CPUs receive
+such interrupt and read new ranking table from shared memory which PCCT table
+has provided, then ``amd_hfi`` driver parses the new table to provide new
+consume data for scheduling decisions.
diff --git a/Documentation/arch/x86/amd-memory-encryption.rst b/Documentation/arch/x86/amd-memory-encryption.rst
index 934310ce7258..bd840df708ea 100644
--- a/Documentation/arch/x86/amd-memory-encryption.rst
+++ b/Documentation/arch/x86/amd-memory-encryption.rst
@@ -87,14 +87,14 @@ The state of SME in the Linux kernel can be documented as follows:
kernel is non-zero).
SME can also be enabled and activated in the BIOS. If SME is enabled and
-activated in the BIOS, then all memory accesses will be encrypted and it will
-not be necessary to activate the Linux memory encryption support. If the BIOS
-merely enables SME (sets bit 23 of the MSR_AMD64_SYSCFG), then Linux can activate
-memory encryption by default (CONFIG_AMD_MEM_ENCRYPT_ACTIVE_BY_DEFAULT=y) or
-by supplying mem_encrypt=on on the kernel command line. However, if BIOS does
-not enable SME, then Linux will not be able to activate memory encryption, even
-if configured to do so by default or the mem_encrypt=on command line parameter
-is specified.
+activated in the BIOS, then all memory accesses will be encrypted and it
+will not be necessary to activate the Linux memory encryption support.
+
+If the BIOS merely enables SME (sets bit 23 of the MSR_AMD64_SYSCFG),
+then memory encryption can be enabled by supplying mem_encrypt=on on the
+kernel command line. However, if BIOS does not enable SME, then Linux
+will not be able to activate memory encryption, even if configured to do
+so by default or the mem_encrypt=on command line parameter is specified.
Secure Nested Paging (SNP)
==========================
@@ -130,4 +130,149 @@ SNP feature support.
More details in AMD64 APM[1] Vol 2: 15.34.10 SEV_STATUS MSR
-[1] https://www.amd.com/system/files/TechDocs/40332.pdf
+Reverse Map Table (RMP)
+=======================
+
+The RMP is a structure in system memory that is used to ensure a one-to-one
+mapping between system physical addresses and guest physical addresses. Each
+page of memory that is potentially assignable to guests has one entry within
+the RMP.
+
+The RMP table can be either contiguous in memory or a collection of segments
+in memory.
+
+Contiguous RMP
+--------------
+
+Support for this form of the RMP is present when support for SEV-SNP is
+present, which can be determined using the CPUID instruction::
+
+ 0x8000001f[eax]:
+ Bit[4] indicates support for SEV-SNP
+
+The location of the RMP is identified to the hardware through two MSRs::
+
+ 0xc0010132 (RMP_BASE):
+ System physical address of the first byte of the RMP
+
+ 0xc0010133 (RMP_END):
+ System physical address of the last byte of the RMP
+
+Hardware requires that RMP_BASE and (RPM_END + 1) be 8KB aligned, but SEV
+firmware increases the alignment requirement to require a 1MB alignment.
+
+The RMP consists of a 16KB region used for processor bookkeeping followed
+by the RMP entries, which are 16 bytes in size. The size of the RMP
+determines the range of physical memory that the hypervisor can assign to
+SEV-SNP guests. The RMP covers the system physical address from::
+
+ 0 to ((RMP_END + 1 - RMP_BASE - 16KB) / 16B) x 4KB.
+
+The current Linux support relies on BIOS to allocate/reserve the memory for
+the RMP and to set RMP_BASE and RMP_END appropriately. Linux uses the MSR
+values to locate the RMP and determine the size of the RMP. The RMP must
+cover all of system memory in order for Linux to enable SEV-SNP.
+
+Segmented RMP
+-------------
+
+Segmented RMP support is a new way of representing the layout of an RMP.
+Initial RMP support required the RMP table to be contiguous in memory.
+RMP accesses from a NUMA node on which the RMP doesn't reside
+can take longer than accesses from a NUMA node on which the RMP resides.
+Segmented RMP support allows the RMP entries to be located on the same
+node as the memory the RMP is covering, potentially reducing latency
+associated with accessing an RMP entry associated with the memory. Each
+RMP segment covers a specific range of system physical addresses.
+
+Support for this form of the RMP can be determined using the CPUID
+instruction::
+
+ 0x8000001f[eax]:
+ Bit[23] indicates support for segmented RMP
+
+If supported, segmented RMP attributes can be found using the CPUID
+instruction::
+
+ 0x80000025[eax]:
+ Bits[5:0] minimum supported RMP segment size
+ Bits[11:6] maximum supported RMP segment size
+
+ 0x80000025[ebx]:
+ Bits[9:0] number of cacheable RMP segment definitions
+ Bit[10] indicates if the number of cacheable RMP segments
+ is a hard limit
+
+To enable a segmented RMP, a new MSR is available::
+
+ 0xc0010136 (RMP_CFG):
+ Bit[0] indicates if segmented RMP is enabled
+ Bits[13:8] contains the size of memory covered by an RMP
+ segment (expressed as a power of 2)
+
+The RMP segment size defined in the RMP_CFG MSR applies to all segments
+of the RMP. Therefore each RMP segment covers a specific range of system
+physical addresses. For example, if the RMP_CFG MSR value is 0x2401, then
+the RMP segment coverage value is 0x24 => 36, meaning the size of memory
+covered by an RMP segment is 64GB (1 << 36). So the first RMP segment
+covers physical addresses from 0 to 0xF_FFFF_FFFF, the second RMP segment
+covers physical addresses from 0x10_0000_0000 to 0x1F_FFFF_FFFF, etc.
+
+When a segmented RMP is enabled, RMP_BASE points to the RMP bookkeeping
+area as it does today (16K in size). However, instead of RMP entries
+beginning immediately after the bookkeeping area, there is a 4K RMP
+segment table (RST). Each entry in the RST is 8-bytes in size and represents
+an RMP segment::
+
+ Bits[19:0] mapped size (in GB)
+ The mapped size can be less than the defined segment size.
+ A value of zero, indicates that no RMP exists for the range
+ of system physical addresses associated with this segment.
+ Bits[51:20] segment physical address
+ This address is left shift 20-bits (or just masked when
+ read) to form the physical address of the segment (1MB
+ alignment).
+
+The RST can hold 512 segment entries but can be limited in size to the number
+of cacheable RMP segments (CPUID 0x80000025_EBX[9:0]) if the number of cacheable
+RMP segments is a hard limit (CPUID 0x80000025_EBX[10]).
+
+The current Linux support relies on BIOS to allocate/reserve the memory for
+the segmented RMP (the bookkeeping area, RST, and all segments), build the RST
+and to set RMP_BASE, RMP_END, and RMP_CFG appropriately. Linux uses the MSR
+values to locate the RMP and determine the size and location of the RMP
+segments. The RMP must cover all of system memory in order for Linux to enable
+SEV-SNP.
+
+More details in the AMD64 APM Vol 2, section "15.36.3 Reverse Map Table",
+docID: 24593.
+
+Secure VM Service Module (SVSM)
+===============================
+
+SNP provides a feature called Virtual Machine Privilege Levels (VMPL) which
+defines four privilege levels at which guest software can run. The most
+privileged level is 0 and numerically higher numbers have lesser privileges.
+More details in the AMD64 APM Vol 2, section "15.35.7 Virtual Machine
+Privilege Levels", docID: 24593.
+
+When using that feature, different services can run at different protection
+levels, apart from the guest OS but still within the secure SNP environment.
+They can provide services to the guest, like a vTPM, for example.
+
+When a guest is not running at VMPL0, it needs to communicate with the software
+running at VMPL0 to perform privileged operations or to interact with secure
+services. An example fur such a privileged operation is PVALIDATE which is
+*required* to be executed at VMPL0.
+
+In this scenario, the software running at VMPL0 is usually called a Secure VM
+Service Module (SVSM). Discovery of an SVSM and the API used to communicate
+with it is documented in "Secure VM Service Module for SEV-SNP Guests", docID:
+58019.
+
+(Latest versions of the above-mentioned documents can be found by using
+a search engine like duckduckgo.com and typing in:
+
+ site:amd.com "Secure VM Service Module for SEV-SNP Guests", docID: 58019
+
+for example.)
diff --git a/Documentation/arch/x86/amd_hsmp.rst b/Documentation/arch/x86/amd_hsmp.rst
index 440e4b645a1c..a094f55c10b0 100644
--- a/Documentation/arch/x86/amd_hsmp.rst
+++ b/Documentation/arch/x86/amd_hsmp.rst
@@ -4,8 +4,9 @@
AMD HSMP interface
============================================
-Newer Fam19h EPYC server line of processors from AMD support system
-management functionality via HSMP (Host System Management Port).
+Newer Fam19h(model 0x00-0x1f, 0x30-0x3f, 0x90-0x9f, 0xa0-0xaf),
+Fam1Ah(model 0x00-0x1f) EPYC server line of processors from AMD support
+system management functionality via HSMP (Host System Management Port).
The Host System Management Port (HSMP) is an interface to provide
OS-level software with access to system management functions via a
@@ -13,16 +14,28 @@ set of mailbox registers.
More details on the interface can be found in chapter
"7 Host System Management Port (HSMP)" of the family/model PPR
-Eg: https://www.amd.com/system/files/TechDocs/55898_B1_pub_0.50.zip
+Eg: https://www.amd.com/content/dam/amd/en/documents/epyc-technical-docs/programmer-references/55898_B1_pub_0_50.zip
-HSMP interface is supported on EPYC server CPU models only.
+
+HSMP interface is supported on EPYC line of server CPUs and MI300A (APU).
HSMP device
============================================
-amd_hsmp driver under the drivers/platforms/x86/ creates miscdevice
-/dev/hsmp to let user space programs run hsmp mailbox commands.
+amd_hsmp driver under drivers/platforms/x86/amd/hsmp/ has separate driver files
+for ACPI object based probing, platform device based probing and for the common
+code for these two drivers.
+
+Kconfig option CONFIG_AMD_HSMP_PLAT compiles plat.c and creates amd_hsmp.ko.
+Kconfig option CONFIG_AMD_HSMP_ACPI compiles acpi.c and creates hsmp_acpi.ko.
+Selecting any of these two configs automatically selects CONFIG_AMD_HSMP. This
+compiles common code hsmp.c and creates hsmp_common.ko module.
+
+Both the ACPI and plat drivers create the miscdevice /dev/hsmp to let
+user space programs run hsmp mailbox commands.
+
+The ACPI object format supported by the driver is defined below.
$ ls -al /dev/hsmp
crw-r--r-- 1 root root 10, 123 Jan 21 21:41 /dev/hsmp
@@ -41,6 +54,99 @@ In-kernel integration:
* Locking across callers is taken care by the driver.
+HSMP sysfs interface
+====================
+
+1. Metrics table binary sysfs
+
+AMD MI300A MCM provides GET_METRICS_TABLE message to retrieve
+most of the system management information from SMU in one go.
+
+The metrics table is made available as hexadecimal sysfs binary file
+under per socket sysfs directory created at
+/sys/devices/platform/amd_hsmp/socket%d/metrics_bin
+
+Note: lseek() is not supported as entire metrics table is read.
+
+Metrics table definitions will be documented as part of Public PPR.
+The same is defined in the amd_hsmp.h header.
+
+2. HSMP telemetry sysfs files
+
+Following sysfs files are available at /sys/devices/platform/AMDI0097:0X/.
+
+* c0_residency_input: Percentage of cores in C0 state.
+* prochot_status: Reports 1 if the processor is at thermal threshold value,
+ 0 otherwise.
+* smu_fw_version: SMU firmware version.
+* protocol_version: HSMP interface version.
+* ddr_max_bw: Theoretical maximum DDR bandwidth in GB/s.
+* ddr_utilised_bw_input: Current utilized DDR bandwidth in GB/s.
+* ddr_utilised_bw_perc_input(%): Percentage of current utilized DDR bandwidth.
+* mclk_input: Memory clock in MHz.
+* fclk_input: Fabric clock in MHz.
+* clk_fmax: Maximum frequency of socket in MHz.
+* clk_fmin: Minimum frequency of socket in MHz.
+* cclk_freq_limit_input: Core clock frequency limit per socket in MHz.
+* pwr_current_active_freq_limit: Current active frequency limit of socket
+ in MHz.
+* pwr_current_active_freq_limit_source: Source of current active frequency
+ limit.
+
+ACPI device object format
+=========================
+The ACPI object format expected from the amd_hsmp driver
+for socket with ID00 is given below::
+
+ Device(HSMP)
+ {
+ Name(_HID, "AMDI0097")
+ Name(_UID, "ID00")
+ Name(HSE0, 0x00000001)
+ Name(RBF0, ResourceTemplate()
+ {
+ Memory32Fixed(ReadWrite, 0xxxxxxx, 0x00100000)
+ })
+ Method(_CRS, 0, NotSerialized)
+ {
+ Return(RBF0)
+ }
+ Method(_STA, 0, NotSerialized)
+ {
+ If(LEqual(HSE0, One))
+ {
+ Return(0x0F)
+ }
+ Else
+ {
+ Return(Zero)
+ }
+ }
+ Name(_DSD, Package(2)
+ {
+ Buffer(0x10)
+ {
+ 0x9D, 0x61, 0x4D, 0xB7, 0x07, 0x57, 0xBD, 0x48,
+ 0xA6, 0x9F, 0x4E, 0xA2, 0x87, 0x1F, 0xC2, 0xF6
+ },
+ Package(3)
+ {
+ Package(2) {"MsgIdOffset", 0x00010934},
+ Package(2) {"MsgRspOffset", 0x00010980},
+ Package(2) {"MsgArgOffset", 0x000109E0}
+ }
+ })
+ }
+
+HSMP HWMON interface
+====================
+HSMP power sensors are registered with the hwmon interface. A separate hwmon
+directory is created for each socket and the following files are generated
+within the hwmon directory.
+- power1_input (read only)
+- power1_cap_max (read only)
+- power1_cap (read, write)
+
An example
==========
@@ -79,8 +185,8 @@ what happened. The transaction returns 0 on success.
More details on the interface and message definitions can be found in chapter
"7 Host System Management Port (HSMP)" of the respective family/model PPR
-eg: https://www.amd.com/system/files/TechDocs/55898_B1_pub_0.50.zip
+eg: https://www.amd.com/content/dam/amd/en/documents/epyc-technical-docs/programmer-references/55898_B1_pub_0_50.zip
User space C-APIs are made available by linking against the esmi library,
-which is provided by the E-SMS project https://developer.amd.com/e-sms/.
+which is provided by the E-SMS project https://www.amd.com/en/developer/e-sms.html.
See: https://github.com/amd/esmi_ib_library
diff --git a/Documentation/arch/x86/boot.rst b/Documentation/arch/x86/boot.rst
index 33520ecdb37a..6d36ce86fd8e 100644
--- a/Documentation/arch/x86/boot.rst
+++ b/Documentation/arch/x86/boot.rst
@@ -71,7 +71,7 @@ Protocol 2.13 (Kernel 3.14) Support 32- and 64-bit flags being set in
Protocol 2.14 BURNT BY INCORRECT COMMIT
ae7e1238e68f2a472a125673ab506d49158c1889
- (x86/boot: Add ACPI RSDP address to setup_header)
+ ("x86/boot: Add ACPI RSDP address to setup_header")
DO NOT USE!!! ASSUME SAME AS 2.13.
Protocol 2.15 (Kernel 5.5) Added the kernel_info and kernel_info.setup_type_max.
@@ -95,27 +95,27 @@ Memory Layout
The traditional memory map for the kernel loader, used for Image or
zImage kernels, typically looks like::
- | |
- 0A0000 +------------------------+
- | Reserved for BIOS | Do not use. Reserved for BIOS EBDA.
- 09A000 +------------------------+
- | Command line |
- | Stack/heap | For use by the kernel real-mode code.
- 098000 +------------------------+
- | Kernel setup | The kernel real-mode code.
- 090200 +------------------------+
- | Kernel boot sector | The kernel legacy boot sector.
- 090000 +------------------------+
- | Protected-mode kernel | The bulk of the kernel image.
- 010000 +------------------------+
- | Boot loader | <- Boot sector entry point 0000:7C00
- 001000 +------------------------+
- | Reserved for MBR/BIOS |
- 000800 +------------------------+
- | Typically used by MBR |
- 000600 +------------------------+
- | BIOS use only |
- 000000 +------------------------+
+ | |
+ 0A0000 +------------------------+
+ | Reserved for BIOS | Do not use. Reserved for BIOS EBDA.
+ 09A000 +------------------------+
+ | Command line |
+ | Stack/heap | For use by the kernel real-mode code.
+ 098000 +------------------------+
+ | Kernel setup | The kernel real-mode code.
+ 090200 +------------------------+
+ | Kernel boot sector | The kernel legacy boot sector.
+ 090000 +------------------------+
+ | Protected-mode kernel | The bulk of the kernel image.
+ 010000 +------------------------+
+ | Boot loader | <- Boot sector entry point 0000:7C00
+ 001000 +------------------------+
+ | Reserved for MBR/BIOS |
+ 000800 +------------------------+
+ | Typically used by MBR |
+ 000600 +------------------------+
+ | BIOS use only |
+ 000000 +------------------------+
When using bzImage, the protected-mode kernel was relocated to
0x100000 ("high memory"), and the kernel real-mode block (boot sector,
@@ -142,28 +142,28 @@ above the 0x9A000 point; too many BIOSes will break above that point.
For a modern bzImage kernel with boot protocol version >= 2.02, a
memory layout like the following is suggested::
- ~ ~
- | Protected-mode kernel |
- 100000 +------------------------+
- | I/O memory hole |
- 0A0000 +------------------------+
- | Reserved for BIOS | Leave as much as possible unused
- ~ ~
- | Command line | (Can also be below the X+10000 mark)
- X+10000 +------------------------+
- | Stack/heap | For use by the kernel real-mode code.
- X+08000 +------------------------+
- | Kernel setup | The kernel real-mode code.
- | Kernel boot sector | The kernel legacy boot sector.
- X +------------------------+
- | Boot loader | <- Boot sector entry point 0000:7C00
- 001000 +------------------------+
- | Reserved for MBR/BIOS |
- 000800 +------------------------+
- | Typically used by MBR |
- 000600 +------------------------+
- | BIOS use only |
- 000000 +------------------------+
+ ~ ~
+ | Protected-mode kernel |
+ 100000 +------------------------+
+ | I/O memory hole |
+ 0A0000 +------------------------+
+ | Reserved for BIOS | Leave as much as possible unused
+ ~ ~
+ | Command line | (Can also be below the X+10000 mark)
+ X+10000 +------------------------+
+ | Stack/heap | For use by the kernel real-mode code.
+ X+08000 +------------------------+
+ | Kernel setup | The kernel real-mode code.
+ | Kernel boot sector | The kernel legacy boot sector.
+ X +------------------------+
+ | Boot loader | <- Boot sector entry point 0000:7C00
+ 001000 +------------------------+
+ | Reserved for MBR/BIOS |
+ 000800 +------------------------+
+ | Typically used by MBR |
+ 000600 +------------------------+
+ | BIOS use only |
+ 000000 +------------------------+
... where the address X is as low as the design of the boot loader permits.
@@ -229,22 +229,22 @@ Offset/Size Proto Name Meaning
=========== ======== ===================== ============================================
.. note::
- (1) For backwards compatibility, if the setup_sects field contains 0, the
- real value is 4.
+ (1) For backwards compatibility, if the setup_sects field contains 0,
+ the real value is 4.
- (2) For boot protocol prior to 2.04, the upper two bytes of the syssize
- field are unusable, which means the size of a bzImage kernel
- cannot be determined.
+ (2) For boot protocol prior to 2.04, the upper two bytes of the syssize
+ field are unusable, which means the size of a bzImage kernel
+ cannot be determined.
- (3) Ignored, but safe to set, for boot protocols 2.02-2.09.
+ (3) Ignored, but safe to set, for boot protocols 2.02-2.09.
If the "HdrS" (0x53726448) magic number is not found at offset 0x202,
the boot protocol version is "old". Loading an old kernel, the
following parameters should be assumed::
- Image type = zImage
- initrd not supported
- Real-mode kernel must be located at 0x90000.
+ Image type = zImage
+ initrd not supported
+ Real-mode kernel must be located at 0x90000.
Otherwise, the "version" field contains the protocol version,
e.g. protocol version 2.01 will contain 0x0201 in this field. When
@@ -265,7 +265,7 @@ All general purpose boot loaders should write the fields marked
nonstandard address should fill in the fields marked (reloc); other
boot loaders can ignore those fields.
-The byte order of all fields is littleendian (this is x86, after all.)
+The byte order of all fields is little endian (this is x86, after all.)
============ ===========
Field name: setup_sects
@@ -365,7 +365,7 @@ Offset/size: 0x206/2
Protocol: 2.00+
============ =======
- Contains the boot protocol version, in (major << 8)+minor format,
+ Contains the boot protocol version, in (major << 8) + minor format,
e.g. 0x0204 for version 2.04, and 0x0a11 for a hypothetical version
10.17.
@@ -397,17 +397,17 @@ Protocol: 2.00+
If set to a nonzero value, contains a pointer to a NUL-terminated
human-readable kernel version number string, less 0x200. This can
be used to display the kernel version to the user. This value
- should be less than (0x200*setup_sects).
+ should be less than (0x200 * setup_sects).
For example, if this value is set to 0x1c00, the kernel version
number string can be found at offset 0x1e00 in the kernel file.
This is a valid value if and only if the "setup_sects" field
contains the value 15 or higher, as::
- 0x1c00 < 15*0x200 (= 0x1e00) but
- 0x1c00 >= 14*0x200 (= 0x1c00)
+ 0x1c00 < 15 * 0x200 (= 0x1e00) but
+ 0x1c00 >= 14 * 0x200 (= 0x1c00)
- 0x1c00 >> 9 = 14, So the minimum value for setup_secs is 15.
+ 0x1c00 >> 9 = 14, So the minimum value for setup_secs is 15.
============ ==================
Field name: type_of_loader
@@ -416,7 +416,7 @@ Offset/size: 0x210/1
Protocol: 2.00+
============ ==================
- If your boot loader has an assigned id (see table below), enter
+ If your boot loader has an assigned ID (see table below), enter
0xTV here, where T is an identifier for the boot loader and V is
a version number. Otherwise, enter 0xFF here.
@@ -427,35 +427,35 @@ Protocol: 2.00+
For example, for T = 0x15, V = 0x234, write::
- type_of_loader <- 0xE4
- ext_loader_type <- 0x05
- ext_loader_ver <- 0x23
+ type_of_loader <- 0xE4
+ ext_loader_type <- 0x05
+ ext_loader_ver <- 0x23
- Assigned boot loader ids (hexadecimal):
+ Assigned boot loader IDs:
== =======================================
- 0 LILO
- (0x00 reserved for pre-2.00 bootloader)
- 1 Loadlin
- 2 bootsect-loader
- (0x20, all other values reserved)
- 3 Syslinux
- 4 Etherboot/gPXE/iPXE
- 5 ELILO
- 7 GRUB
- 8 U-Boot
- 9 Xen
- A Gujin
- B Qemu
- C Arcturus Networks uCbootloader
- D kexec-tools
- E Extended (see ext_loader_type)
- F Special (0xFF = undefined)
- 10 Reserved
- 11 Minimal Linux Bootloader
- <http://sebastian-plotz.blogspot.de>
- 12 OVMF UEFI virtualization stack
- 13 barebox
+ 0x0 LILO
+ (0x00 reserved for pre-2.00 bootloader)
+ 0x1 Loadlin
+ 0x2 bootsect-loader
+ (0x20, all other values reserved)
+ 0x3 Syslinux
+ 0x4 Etherboot/gPXE/iPXE
+ 0x5 ELILO
+ 0x7 GRUB
+ 0x8 U-Boot
+ 0x9 Xen
+ 0xA Gujin
+ 0xB Qemu
+ 0xC Arcturus Networks uCbootloader
+ 0xD kexec-tools
+ 0xE Extended (see ext_loader_type)
+ 0xF Special (0xFF = undefined)
+ 0x10 Reserved
+ 0x11 Minimal Linux Bootloader
+ <http://sebastian-plotz.blogspot.de>
+ 0x12 OVMF UEFI virtualization stack
+ 0x13 barebox
== =======================================
Please contact <hpa@zytor.com> if you need a bootloader ID value assigned.
@@ -686,7 +686,7 @@ Protocol: 2.10+
If a boot loader makes use of this field, it should update the
kernel_alignment field with the alignment unit desired; typically::
- kernel_alignment = 1 << min_alignment
+ kernel_alignment = 1 << min_alignment;
There may be a considerable performance cost with an excessively
misaligned kernel. Therefore, a loader should typically try each
@@ -754,7 +754,7 @@ Protocol: 2.07+
0x00000000 The default x86/PC environment
0x00000001 lguest
0x00000002 Xen
- 0x00000003 Moorestown MID
+ 0x00000003 Intel MID (Moorestown, CloverTrail, Merrifield, Moorefield)
0x00000004 CE4100 TV Platform
========== ==============================
@@ -808,13 +808,13 @@ Protocol: 2.09+
parameters passing mechanism. The definition of struct setup_data is
as follow::
- struct setup_data {
- u64 next;
- u32 type;
- u32 len;
- u8 data[0];
- };
-
+ struct setup_data {
+ __u64 next;
+ __u32 type;
+ __u32 len;
+ __u8 data[];
+ }
+
Where, the next is a 64-bit physical pointer to the next node of
linked list, the next field of the last node is 0; the type is used
to identify the contents of data; the len is the length of data
@@ -834,12 +834,12 @@ Protocol: 2.09+
Thus setup_indirect struct and SETUP_INDIRECT type were introduced in
protocol 2.15::
- struct setup_indirect {
- __u32 type;
- __u32 reserved; /* Reserved, must be set to zero. */
- __u64 len;
- __u64 addr;
- };
+ struct setup_indirect {
+ __u32 type;
+ __u32 reserved; /* Reserved, must be set to zero. */
+ __u64 len;
+ __u64 addr;
+ };
The type member is a SETUP_INDIRECT | SETUP_* type. However, it cannot be
SETUP_INDIRECT itself since making the setup_indirect a tree structure
@@ -849,17 +849,17 @@ Protocol: 2.09+
Let's give an example how to point to SETUP_E820_EXT data using setup_indirect.
In this case setup_data and setup_indirect will look like this::
- struct setup_data {
- __u64 next = 0 or <addr_of_next_setup_data_struct>;
- __u32 type = SETUP_INDIRECT;
- __u32 len = sizeof(setup_indirect);
- __u8 data[sizeof(setup_indirect)] = struct setup_indirect {
- __u32 type = SETUP_INDIRECT | SETUP_E820_EXT;
- __u32 reserved = 0;
- __u64 len = <len_of_SETUP_E820_EXT_data>;
- __u64 addr = <addr_of_SETUP_E820_EXT_data>;
- }
- }
+ struct setup_data {
+ .next = 0, /* or <addr_of_next_setup_data_struct> */
+ .type = SETUP_INDIRECT,
+ .len = sizeof(setup_indirect),
+ .data[sizeof(setup_indirect)] = (struct setup_indirect) {
+ .type = SETUP_INDIRECT | SETUP_E820_EXT,
+ .reserved = 0,
+ .len = <len_of_SETUP_E820_EXT_data>,
+ .addr = <addr_of_SETUP_E820_EXT_data>,
+ },
+ }
.. note::
SETUP_INDIRECT | SETUP_NONE objects cannot be properly distinguished
@@ -878,7 +878,8 @@ Protocol: 2.10+
address if possible.
A non-relocatable kernel will unconditionally move itself and to run
- at this address.
+ at this address. A relocatable kernel will move itself to this address if it
+ loaded below this address.
============ =======
Field name: init_size
@@ -895,10 +896,19 @@ Offset/size: 0x260/4
The kernel runtime start address is determined by the following algorithm::
- if (relocatable_kernel)
- runtime_start = align_up(load_address, kernel_alignment)
- else
- runtime_start = pref_address
+ if (relocatable_kernel) {
+ if (load_address < pref_address)
+ load_address = pref_address;
+ runtime_start = align_up(load_address, kernel_alignment);
+ } else {
+ runtime_start = pref_address;
+ }
+
+Hence the necessary memory window location and size can be estimated by
+a boot loader as::
+
+ memory_window_start = runtime_start;
+ memory_window_size = init_size;
============ ===============
Field name: handover_offset
@@ -928,12 +938,12 @@ The kernel_info
===============
The relationships between the headers are analogous to the various data
-sections:
+sections::
setup_header = .data
boot_params/setup_data = .bss
-What is missing from the above list? That's right:
+What is missing from the above list? That's right::
kernel_info = .rodata
@@ -965,22 +975,22 @@ after kernel_info_var_len_data label. Each chunk of variable size data has to
be prefixed with header/magic and its size, e.g.::
kernel_info:
- .ascii "LToP" /* Header, Linux top (structure). */
- .long kernel_info_var_len_data - kernel_info
- .long kernel_info_end - kernel_info
- .long 0x01234567 /* Some fixed size data for the bootloaders. */
+ .ascii "LToP" /* Header, Linux top (structure). */
+ .long kernel_info_var_len_data - kernel_info
+ .long kernel_info_end - kernel_info
+ .long 0x01234567 /* Some fixed size data for the bootloaders. */
kernel_info_var_len_data:
- example_struct: /* Some variable size data for the bootloaders. */
- .ascii "0123" /* Header/Magic. */
- .long example_struct_end - example_struct
- .ascii "Struct"
- .long 0x89012345
+ example_struct: /* Some variable size data for the bootloaders. */
+ .ascii "0123" /* Header/Magic. */
+ .long example_struct_end - example_struct
+ .ascii "Struct"
+ .long 0x89012345
example_struct_end:
- example_strings: /* Some variable size data for the bootloaders. */
- .ascii "ABCD" /* Header/Magic. */
- .long example_strings_end - example_strings
- .asciz "String_0"
- .asciz "String_1"
+ example_strings: /* Some variable size data for the bootloaders. */
+ .ascii "ABCD" /* Header/Magic. */
+ .long example_strings_end - example_strings
+ .asciz "String_0"
+ .asciz "String_1"
example_strings_end:
kernel_info_end:
@@ -1028,16 +1038,6 @@ Offset/size: 0x000c/4
This field contains maximal allowed type for setup_data and setup_indirect structs.
-The Image Checksum
-==================
-
-From boot protocol version 2.08 onwards the CRC-32 is calculated over
-the entire file using the characteristic polynomial 0x04C11DB7 and an
-initial remainder of 0xffffffff. The checksum is appended to the
-file; therefore the CRC of the file up to the limit specified in the
-syssize field of the header is always 0.
-
-
The Kernel Command Line
=======================
@@ -1105,7 +1105,7 @@ The kernel command line should not be located below the real-mode
code, nor should it be located in high memory.
-Sample Boot Configuartion
+Sample Boot Configuration
=========================
As a sample configuration, assume the following layout of the real
@@ -1129,67 +1129,63 @@ mode segment.
Such a boot loader should enter the following fields in the header::
- unsigned long base_ptr; /* base address for real-mode segment */
+ unsigned long base_ptr; /* base address for real-mode segment */
- if ( setup_sects == 0 ) {
- setup_sects = 4;
- }
+ if (setup_sects == 0)
+ setup_sects = 4;
- if ( protocol >= 0x0200 ) {
- type_of_loader = <type code>;
- if ( loading_initrd ) {
- ramdisk_image = <initrd_address>;
- ramdisk_size = <initrd_size>;
- }
+ if (protocol >= 0x0200) {
+ type_of_loader = <type code>;
+ if (loading_initrd) {
+ ramdisk_image = <initrd_address>;
+ ramdisk_size = <initrd_size>;
+ }
- if ( protocol >= 0x0202 && loadflags & 0x01 )
- heap_end = 0xe000;
- else
- heap_end = 0x9800;
+ if (protocol >= 0x0202 && loadflags & 0x01)
+ heap_end = 0xe000;
+ else
+ heap_end = 0x9800;
- if ( protocol >= 0x0201 ) {
- heap_end_ptr = heap_end - 0x200;
- loadflags |= 0x80; /* CAN_USE_HEAP */
- }
+ if (protocol >= 0x0201) {
+ heap_end_ptr = heap_end - 0x200;
+ loadflags |= 0x80; /* CAN_USE_HEAP */
+ }
- if ( protocol >= 0x0202 ) {
- cmd_line_ptr = base_ptr + heap_end;
- strcpy(cmd_line_ptr, cmdline);
- } else {
- cmd_line_magic = 0xA33F;
- cmd_line_offset = heap_end;
- setup_move_size = heap_end + strlen(cmdline)+1;
- strcpy(base_ptr+cmd_line_offset, cmdline);
- }
- } else {
- /* Very old kernel */
+ if (protocol >= 0x0202) {
+ cmd_line_ptr = base_ptr + heap_end;
+ strcpy(cmd_line_ptr, cmdline);
+ } else {
+ cmd_line_magic = 0xA33F;
+ cmd_line_offset = heap_end;
+ setup_move_size = heap_end + strlen(cmdline) + 1;
+ strcpy(base_ptr + cmd_line_offset, cmdline);
+ }
+ } else {
+ /* Very old kernel */
- heap_end = 0x9800;
+ heap_end = 0x9800;
- cmd_line_magic = 0xA33F;
- cmd_line_offset = heap_end;
+ cmd_line_magic = 0xA33F;
+ cmd_line_offset = heap_end;
- /* A very old kernel MUST have its real-mode code
- loaded at 0x90000 */
+ /* A very old kernel MUST have its real-mode code loaded at 0x90000 */
+ if (base_ptr != 0x90000) {
+ /* Copy the real-mode kernel */
+ memcpy(0x90000, base_ptr, (setup_sects + 1) * 512);
+ base_ptr = 0x90000; /* Relocated */
+ }
- if ( base_ptr != 0x90000 ) {
- /* Copy the real-mode kernel */
- memcpy(0x90000, base_ptr, (setup_sects+1)*512);
- base_ptr = 0x90000; /* Relocated */
- }
+ strcpy(0x90000 + cmd_line_offset, cmdline);
- strcpy(0x90000+cmd_line_offset, cmdline);
-
- /* It is recommended to clear memory up to the 32K mark */
- memset(0x90000 + (setup_sects+1)*512, 0,
- (64-(setup_sects+1))*512);
- }
+ /* It is recommended to clear memory up to the 32K mark */
+ memset(0x90000 + (setup_sects + 1) * 512, 0, (64 - (setup_sects + 1)) * 512);
+ }
Loading The Rest of The Kernel
==============================
-The 32-bit (non-real-mode) kernel starts at offset (setup_sects+1)*512
+The 32-bit (non-real-mode) kernel starts at offset (setup_sects + 1) * 512
in the kernel file (again, if setup_sects == 0 the real value is 4.)
It should be loaded at address 0x10000 for Image/zImage kernels and
0x100000 for bzImage kernels.
@@ -1197,13 +1193,14 @@ It should be loaded at address 0x10000 for Image/zImage kernels and
The kernel is a bzImage kernel if the protocol >= 2.00 and the 0x01
bit (LOAD_HIGH) in the loadflags field is set::
- is_bzImage = (protocol >= 0x0200) && (loadflags & 0x01);
- load_address = is_bzImage ? 0x100000 : 0x10000;
+ is_bzImage = (protocol >= 0x0200) && (loadflags & 0x01);
+ load_address = is_bzImage ? 0x100000 : 0x10000;
-Note that Image/zImage kernels can be up to 512K in size, and thus use
-the entire 0x10000-0x90000 range of memory. This means it is pretty
-much a requirement for these kernels to load the real-mode part at
-0x90000. bzImage kernels allow much more flexibility.
+.. note::
+ Image/zImage kernels can be up to 512K in size, and thus use the entire
+ 0x10000-0x90000 range of memory. This means it is pretty much a
+ requirement for these kernels to load the real-mode part at 0x90000.
+ bzImage kernels allow much more flexibility.
Special Command Line Options
============================
@@ -1272,19 +1269,20 @@ es = ss.
In our example from above, we would do::
- /* Note: in the case of the "old" kernel protocol, base_ptr must
- be == 0x90000 at this point; see the previous sample code */
+ /*
+ * Note: in the case of the "old" kernel protocol, base_ptr must
+ * be == 0x90000 at this point; see the previous sample code.
+ */
+ seg = base_ptr >> 4;
- seg = base_ptr >> 4;
+ cli(); /* Enter with interrupts disabled! */
- cli(); /* Enter with interrupts disabled! */
+ /* Set up the real-mode kernel stack */
+ _SS = seg;
+ _SP = heap_end;
- /* Set up the real-mode kernel stack */
- _SS = seg;
- _SP = heap_end;
-
- _DS = _ES = _FS = _GS = seg;
- jmp_far(seg+0x20, 0); /* Run the kernel */
+ _DS = _ES = _FS = _GS = seg;
+ jmp_far(seg + 0x20, 0); /* Run the kernel */
If your boot sector accesses a floppy drive, it is recommended to
switch off the floppy motor before running the kernel, since the
@@ -1339,7 +1337,7 @@ from offset 0x01f1 of kernel image on should be loaded into struct
boot_params and examined. The end of setup header can be calculated as
follow::
- 0x0202 + byte value at offset 0x0201
+ 0x0202 + byte value at offset 0x0201
In addition to read/modify/write the setup header of the struct
boot_params as that of 16-bit boot protocol, the boot loader should
@@ -1375,7 +1373,7 @@ Then, the setup header at offset 0x01f1 of kernel image on should be
loaded into struct boot_params and examined. The end of setup header
can be calculated as follows::
- 0x0202 + byte value at offset 0x0201
+ 0x0202 + byte value at offset 0x0201
In addition to read/modify/write the setup header of the struct
boot_params as that of 16-bit boot protocol, the boot loader should
@@ -1417,7 +1415,7 @@ execution context provided by the EFI firmware.
The function prototype for the handover entry point looks like this::
- efi_main(void *handle, efi_system_table_t *table, struct boot_params *bp)
+ void efi_stub_entry(void *handle, efi_system_table_t *table, struct boot_params *bp);
'handle' is the EFI image handle passed to the boot loader by the EFI
firmware, 'table' is the EFI system table - these are the first two
@@ -1432,12 +1430,35 @@ The boot loader *must* fill out the following fields in bp::
All other fields should be zero.
-NOTE: The EFI Handover Protocol is deprecated in favour of the ordinary PE/COFF
- entry point, combined with the LINUX_EFI_INITRD_MEDIA_GUID based initrd
- loading protocol (refer to [0] for an example of the bootloader side of
- this), which removes the need for any knowledge on the part of the EFI
- bootloader regarding the internal representation of boot_params or any
- requirements/limitations regarding the placement of the command line
- and ramdisk in memory, or the placement of the kernel image itself.
+.. note::
+ The EFI Handover Protocol is deprecated in favour of the ordinary PE/COFF
+ entry point described below.
+
+.. _pe-coff-entry-point:
+
+PE/COFF entry point
+===================
+
+When compiled with ``CONFIG_EFI_STUB=y``, the kernel can be executed as a
+regular PE/COFF binary. See Documentation/admin-guide/efi-stub.rst for
+implementation details.
+
+The stub loader can request the initrd via a UEFI protocol. For this to work,
+the firmware or bootloader needs to register a handle which carries
+implementations of the ``EFI_LOAD_FILE2`` protocol and the device path
+protocol exposing the ``LINUX_EFI_INITRD_MEDIA_GUID`` vendor media device path.
+In this case, a kernel booting via the EFI stub will invoke
+``LoadFile2::LoadFile()`` method on the registered protocol to instruct the
+firmware to load the initrd into a memory location chosen by the kernel/EFI
+stub.
+
+This approach removes the need for any knowledge on the part of the EFI
+bootloader regarding the internal representation of boot_params or any
+requirements/limitations regarding the placement of the command line and
+ramdisk in memory, or the placement of the kernel image itself.
+
+For sample implementations, refer to `the original u-boot implementation`_ or
+`the OVMF implementation`_.
-[0] https://github.com/u-boot/u-boot/commit/ec80b4735a593961fe701cc3a5d717d4739b0fd0
+.. _the original u-boot implementation: https://github.com/u-boot/u-boot/commit/ec80b4735a593961fe701cc3a5d717d4739b0fd0
+.. _the OVMF implementation: https://github.com/tianocore/edk2/blob/1780373897f12c25075f8883e073144506441168/OvmfPkg/LinuxInitrdDynamicShellCommand/LinuxInitrdDynamicShellCommand.c
diff --git a/Documentation/arch/x86/buslock.rst b/Documentation/arch/x86/buslock.rst
index 31ec0ef78086..31f1bfdff16f 100644
--- a/Documentation/arch/x86/buslock.rst
+++ b/Documentation/arch/x86/buslock.rst
@@ -26,13 +26,14 @@ Detection
=========
Intel processors may support either or both of the following hardware
-mechanisms to detect split locks and bus locks.
+mechanisms to detect split locks and bus locks. Some AMD processors also
+support bus lock detect.
#AC exception for split lock detection
--------------------------------------
Beginning with the Tremont Atom CPU split lock operations may raise an
-Alignment Check (#AC) exception when a split lock operation is attemped.
+Alignment Check (#AC) exception when a split lock operation is attempted.
#DB exception for bus lock detection
------------------------------------
diff --git a/Documentation/arch/x86/cpuinfo.rst b/Documentation/arch/x86/cpuinfo.rst
index 08246e8ac835..9f2e47c4b1c8 100644
--- a/Documentation/arch/x86/cpuinfo.rst
+++ b/Documentation/arch/x86/cpuinfo.rst
@@ -7,33 +7,81 @@ x86 Feature Flags
Introduction
============
-On x86, flags appearing in /proc/cpuinfo have an X86_FEATURE definition
-in arch/x86/include/asm/cpufeatures.h. If the kernel cares about a feature
-or KVM want to expose the feature to a KVM guest, it can and should have
-an X86_FEATURE_* defined. These flags represent hardware features as
-well as software features.
-
-If users want to know if a feature is available on a given system, they
-try to find the flag in /proc/cpuinfo. If a given flag is present, it
-means that the kernel supports it and is currently making it available.
-If such flag represents a hardware feature, it also means that the
-hardware supports it.
-
-If the expected flag does not appear in /proc/cpuinfo, things are murkier.
-Users need to find out the reason why the flag is missing and find the way
-how to enable it, which is not always easy. There are several factors that
-can explain missing flags: the expected feature failed to enable, the feature
-is missing in hardware, platform firmware did not enable it, the feature is
-disabled at build or run time, an old kernel is in use, or the kernel does
-not support the feature and thus has not enabled it. In general, /proc/cpuinfo
-shows features which the kernel supports. For a full list of CPUID flags
-which the CPU supports, use tools/arch/x86/kcpuid.
+The list of feature flags in /proc/cpuinfo is not complete and
+represents an ill-fated attempt from long time ago to put feature flags
+in an easy to find place for userspace.
+
+However, the number of feature flags is growing with each CPU generation,
+leading to unparseable and unwieldy /proc/cpuinfo.
+
+What is more, those feature flags do not even need to be in that file
+because userspace doesn't care about them - glibc et al already use
+CPUID to find out what the target machine supports and what not.
+
+And even if it doesn't show a particular feature flag - although the CPU
+still does have support for the respective hardware functionality and
+said CPU supports CPUID faulting - userspace can simply probe for the
+feature and figure out if it is supported or not, regardless of whether
+it is being advertised somewhere.
+
+Furthermore, those flag strings become an ABI the moment they appear
+there and maintaining them forever when nothing even uses them is a lot
+of wasted effort.
+
+So, the current use of /proc/cpuinfo is to show features which the
+kernel has *enabled* and *supports*. As in: the CPUID feature flag is
+there, there's an additional setup which the kernel has done while
+booting and the functionality is ready to use. A perfect example for
+that is "user_shstk" where additional code enablement is present in the
+kernel to support shadow stack for user programs.
+
+So, if users want to know if a feature is available on a given system,
+they try to find the flag in /proc/cpuinfo. If a given flag is present,
+it means that
+
+* the kernel knows about the feature enough to have an X86_FEATURE bit
+
+* the kernel supports it and is currently making it available either to
+ userspace or some other part of the kernel
+
+* if the flag represents a hardware feature the hardware supports it.
+
+The absence of a flag in /proc/cpuinfo by itself means almost nothing to
+an end user.
+
+On the one hand, a feature like "vaes" might be fully available to user
+applications on a kernel that has not defined X86_FEATURE_VAES and thus
+there is no "vaes" in /proc/cpuinfo.
+
+On the other hand, a new kernel running on non-VAES hardware would also
+have no "vaes" in /proc/cpuinfo. There's no way for an application or
+user to tell the difference.
+
+The end result is that the flags field in /proc/cpuinfo is marginally
+useful for kernel debugging, but not really for anything else.
+Applications should instead use things like the glibc facilities for
+querying CPU support. Users should rely on tools like
+tools/arch/x86/kcpuid and cpuid(1).
+
+Regarding implementation, flags appearing in /proc/cpuinfo have an
+X86_FEATURE definition in arch/x86/include/asm/cpufeatures.h. These flags
+represent hardware features as well as software features.
+
+If the kernel cares about a feature or KVM want to expose the feature to
+a KVM guest, it should only then expose it to the guest when the guest
+needs to parse /proc/cpuinfo. Which, as mentioned above, is highly
+unlikely. KVM can synthesize the CPUID bit and the KVM guest can simply
+query CPUID and figure out what the hypervisor supports and what not. As
+already stated, /proc/cpuinfo is not a dumping ground for useless
+feature flags.
+
How are feature flags created?
==============================
-a: Feature flags can be derived from the contents of CPUID leaves.
-------------------------------------------------------------------
+Feature flags can be derived from the contents of CPUID leaves
+--------------------------------------------------------------
+
These feature definitions are organized mirroring the layout of CPUID
leaves and grouped in words with offsets as mapped in enum cpuid_leafs
in cpufeatures.h (see arch/x86/include/asm/cpufeatures.h for details).
@@ -42,8 +90,9 @@ cpufeatures.h, and if it is detected at run time, the flags will be
displayed accordingly in /proc/cpuinfo. For example, the flag "avx2"
comes from X86_FEATURE_AVX2 in cpufeatures.h.
-b: Flags can be from scattered CPUID-based features.
-----------------------------------------------------
+Flags can be from scattered CPUID-based features
+------------------------------------------------
+
Hardware features enumerated in sparsely populated CPUID leaves get
software-defined values. Still, CPUID needs to be queried to determine
if a given feature is present. This is done in init_scattered_cpuid_features().
@@ -57,18 +106,19 @@ has only one feature and would waste 31 bits of space in the x86_capability[]
array. Since there is a struct cpuinfo_x86 for each possible CPU, the wasted
memory is not trivial.
-c: Flags can be created synthetically under certain conditions for hardware features.
--------------------------------------------------------------------------------------
+Flags can be created synthetically under certain conditions for hardware features
+---------------------------------------------------------------------------------
+
Examples of conditions include whether certain features are present in
MSR_IA32_CORE_CAPS or specific CPU models are identified. If the needed
conditions are met, the features are enabled by the set_cpu_cap or
setup_force_cpu_cap macros. For example, if bit 5 is set in MSR_IA32_CORE_CAPS,
the feature X86_FEATURE_SPLIT_LOCK_DETECT will be enabled and
"split_lock_detect" will be displayed. The flag "ring3mwait" will be
-displayed only when running on INTEL_FAM6_XEON_PHI_[KNL|KNM] processors.
+displayed only when running on INTEL_XEON_PHI_[KNL|KNM] processors.
-d: Flags can represent purely software features.
-------------------------------------------------
+Flags can represent purely software features
+--------------------------------------------
These flags do not represent hardware features. Instead, they represent a
software feature implemented in the kernel. For example, Kernel Page Table
Isolation is purely software feature and its feature flag X86_FEATURE_PTI is
@@ -83,14 +133,18 @@ x86_cap/bug_flags[] arrays in kernel/cpu/capflags.c. The names in the
resulting x86_cap/bug_flags[] are used to populate /proc/cpuinfo. The naming
of flags in the x86_cap/bug_flags[] are as follows:
-a: The name of the flag is from the string in X86_FEATURE_<name> by default.
-----------------------------------------------------------------------------
-By default, the flag <name> in /proc/cpuinfo is extracted from the respective
-X86_FEATURE_<name> in cpufeatures.h. For example, the flag "avx2" is from
-X86_FEATURE_AVX2.
+Flags do not appear by default in /proc/cpuinfo
+-----------------------------------------------
+
+Feature flags are omitted by default from /proc/cpuinfo as it does not make
+sense for the feature to be exposed to userspace in most cases. For example,
+X86_FEATURE_ALWAYS is defined in cpufeatures.h but that flag is an internal
+kernel feature used in the alternative runtime patching functionality. So the
+flag does not appear in /proc/cpuinfo.
+
+Specify a flag name if absolutely needed
+----------------------------------------
-b: The naming can be overridden.
---------------------------------
If the comment on the line for the #define X86_FEATURE_* starts with a
double-quote character (""), the string inside the double-quote characters
will be the name of the flags. For example, the flag "sse4_1" comes from
@@ -101,36 +155,31 @@ needed. For instance, /proc/cpuinfo is a userspace interface and must remain
constant. If, for some reason, the naming of X86_FEATURE_<name> changes, one
shall override the new naming with the name already used in /proc/cpuinfo.
-c: The naming override can be "", which means it will not appear in /proc/cpuinfo.
-----------------------------------------------------------------------------------
-The feature shall be omitted from /proc/cpuinfo if it does not make sense for
-the feature to be exposed to userspace. For example, X86_FEATURE_ALWAYS is
-defined in cpufeatures.h but that flag is an internal kernel feature used
-in the alternative runtime patching functionality. So, its name is overridden
-with "". Its flag will not appear in /proc/cpuinfo.
-
Flags are missing when one or more of these happen
==================================================
-a: The hardware does not enumerate support for it.
---------------------------------------------------
+The hardware does not enumerate support for it
+----------------------------------------------
+
For example, when a new kernel is running on old hardware or the feature is
not enabled by boot firmware. Even if the hardware is new, there might be a
problem enabling the feature at run time, the flag will not be displayed.
-b: The kernel does not know about the flag.
--------------------------------------------
+The kernel does not know about the flag
+---------------------------------------
+
For example, when an old kernel is running on new hardware.
-c: The kernel disabled support for it at compile-time.
-------------------------------------------------------
-For example, if 5-level-paging is not enabled when building (i.e.,
-CONFIG_X86_5LEVEL is not selected) the flag "la57" will not show up [#f1]_.
+The kernel disabled support for it at compile-time
+--------------------------------------------------
+
+For example, if Linear Address Masking (LAM) is not enabled when building (i.e.,
+CONFIG_ADDRESS_MASKING is not selected) the flag "lam" will not show up.
Even though the feature will still be detected via CPUID, the kernel disables
-it by clearing via setup_clear_cpu_cap(X86_FEATURE_LA57).
+it by clearing via setup_clear_cpu_cap(X86_FEATURE_LAM).
-d: The feature is disabled at boot-time.
-----------------------------------------
+The feature is disabled at boot-time
+------------------------------------
A feature can be disabled either using a command-line parameter or because
it failed to be enabled. The command-line parameter clearcpuid= can be used
to disable features using the feature number as defined in
@@ -143,12 +192,11 @@ disable specific features. The list of parameters includes, but is not limited
to, nofsgsbase, nosgx, noxsave, etc. 5-level paging can also be disabled using
"no5lvl".
-e: The feature was known to be non-functional.
-----------------------------------------------
+The feature was known to be non-functional
+------------------------------------------
+
The feature was known to be non-functional because a dependency was
missing at runtime. For example, AVX flags will not show up if XSAVE feature
is disabled since they depend on XSAVE feature. Another example would be broken
CPUs and them missing microcode patches. Due to that, the kernel decides not to
enable a feature.
-
-.. [#f1] 5-level paging uses linear address of 57 bits.
diff --git a/Documentation/arch/x86/exception-tables.rst b/Documentation/arch/x86/exception-tables.rst
index efde1fef4fbd..6e7177363f8f 100644
--- a/Documentation/arch/x86/exception-tables.rst
+++ b/Documentation/arch/x86/exception-tables.rst
@@ -297,7 +297,7 @@ vma occurs?
c) execution continues at local label 2 (address of the
instruction immediately after the faulting user access).
-The steps 8a to 8c in a certain way emulate the faulting instruction.
+ The steps a to c above in a certain way emulate the faulting instruction.
That's it, mostly. If you look at our example, you might ask why
we set EAX to -EFAULT in the exception handler code. Well, the
diff --git a/Documentation/arch/x86/features.rst b/Documentation/arch/x86/features.rst
index b663f15053ce..a33616346a38 100644
--- a/Documentation/arch/x86/features.rst
+++ b/Documentation/arch/x86/features.rst
@@ -1,3 +1,3 @@
.. SPDX-License-Identifier: GPL-2.0
-.. kernel-feat:: $srctree/Documentation/features x86
+.. kernel-feat:: features x86
diff --git a/Documentation/arch/x86/index.rst b/Documentation/arch/x86/index.rst
index c73d133fd37c..f88bcfceb7f2 100644
--- a/Documentation/arch/x86/index.rst
+++ b/Documentation/arch/x86/index.rst
@@ -22,15 +22,17 @@ x86-specific Documentation
mtrr
pat
intel-hfi
+ shstk
iommu
intel_txt
+ amd-debugging
amd-memory-encryption
amd_hsmp
+ amd-hfi
tdx
pti
mds
microcode
- resctrl
tsx_async_abort
buslock
usb-legacy-support
diff --git a/Documentation/arch/x86/iommu.rst b/Documentation/arch/x86/iommu.rst
index 42c7a6faa39a..41fbadfe2221 100644
--- a/Documentation/arch/x86/iommu.rst
+++ b/Documentation/arch/x86/iommu.rst
@@ -5,7 +5,7 @@ x86 IOMMU Support
The architecture specs can be obtained from the below locations.
- Intel: http://www.intel.com/content/dam/www/public/us/en/documents/product-specifications/vt-directed-io-spec.pdf
-- AMD: https://www.amd.com/system/files/TechDocs/48882_IOMMU.pdf
+- AMD: https://www.amd.com/content/dam/amd/en/documents/processor-tech-docs/specifications/48882_3_07_PUB.pdf
This guide gives a quick cheat sheet for some basic understanding.
diff --git a/Documentation/arch/x86/mds.rst b/Documentation/arch/x86/mds.rst
index 5d4330be200f..3518671e1a85 100644
--- a/Documentation/arch/x86/mds.rst
+++ b/Documentation/arch/x86/mds.rst
@@ -60,7 +60,7 @@ needed for exploiting MDS requires:
data
The existence of such a construct in the kernel cannot be excluded with
-100% certainty, but the complexity involved makes it extremly unlikely.
+100% certainty, but the complexity involved makes it extremely unlikely.
There is one exception, which is untrusted BPF. The functionality of
untrusted BPF is limited, but it needs to be thoroughly investigated
@@ -93,7 +93,10 @@ enters a C-state.
The kernel provides a function to invoke the buffer clearing:
- mds_clear_cpu_buffers()
+ x86_clear_cpu_buffers()
+
+Also macro CLEAR_CPU_BUFFERS can be used in ASM late in exit-to-user path.
+Other than CFLAGS.ZF, this macro doesn't clobber any registers.
The mitigation is invoked on kernel/userspace, hypervisor/guest and C-state
(idle) transitions.
@@ -138,17 +141,30 @@ Mitigation points
When transitioning from kernel to user space the CPU buffers are flushed
on affected CPUs when the mitigation is not disabled on the kernel
- command line. The migitation is enabled through the static key
- mds_user_clear.
-
- The mitigation is invoked in prepare_exit_to_usermode() which covers
- all but one of the kernel to user space transitions. The exception
- is when we return from a Non Maskable Interrupt (NMI), which is
- handled directly in do_nmi().
-
- (The reason that NMI is special is that prepare_exit_to_usermode() can
- enable IRQs. In NMI context, NMIs are blocked, and we don't want to
- enable IRQs with NMIs blocked.)
+ command line. The mitigation is enabled through the feature flag
+ X86_FEATURE_CLEAR_CPU_BUF.
+
+ The mitigation is invoked just before transitioning to userspace after
+ user registers are restored. This is done to minimize the window in
+ which kernel data could be accessed after VERW e.g. via an NMI after
+ VERW.
+
+ **Corner case not handled**
+ Interrupts returning to kernel don't clear CPUs buffers since the
+ exit-to-user path is expected to do that anyways. But, there could be
+ a case when an NMI is generated in kernel after the exit-to-user path
+ has cleared the buffers. This case is not handled and NMI returning to
+ kernel don't clear CPU buffers because:
+
+ 1. It is rare to get an NMI after VERW, but before returning to userspace.
+ 2. For an unprivileged user, there is no known way to make that NMI
+ less rare or target it.
+ 3. It would take a large number of these precisely-timed NMIs to mount
+ an actual attack. There's presumably not enough bandwidth.
+ 4. The NMI in question occurs after a VERW, i.e. when user state is
+ restored and most interesting data is already scrubbed. What's left
+ is only the data that NMI touches, and that may or may not be of
+ any interest.
2. C-State transition
@@ -169,9 +185,9 @@ Mitigation points
idle clearing would be a window dressing exercise and is therefore not
activated.
- The invocation is controlled by the static key mds_idle_clear which is
- switched depending on the chosen mitigation mode and the SMT state of
- the system.
+ The invocation is controlled by the static key cpu_buf_idle_clear which is
+ switched depending on the chosen mitigation mode and the SMT state of the
+ system.
The buffer clear is only invoked before entering the C-State to prevent
that stale data from the idling CPU from spilling to the Hyper-Thread
diff --git a/Documentation/arch/x86/pti.rst b/Documentation/arch/x86/pti.rst
index 4b858a9bad8d..57e8392f61d3 100644
--- a/Documentation/arch/x86/pti.rst
+++ b/Documentation/arch/x86/pti.rst
@@ -26,9 +26,9 @@ comments in pti.c).
This approach helps to ensure that side-channel attacks leveraging
the paging structures do not function when PTI is enabled. It can be
-enabled by setting CONFIG_PAGE_TABLE_ISOLATION=y at compile time.
-Once enabled at compile-time, it can be disabled at boot with the
-'nopti' or 'pti=' kernel parameters (see kernel-parameters.txt).
+enabled by setting CONFIG_MITIGATION_PAGE_TABLE_ISOLATION=y at compile
+time. Once enabled at compile-time, it can be disabled at boot with
+the 'nopti' or 'pti=' kernel parameters (see kernel-parameters.txt).
Page Table Management
=====================
@@ -81,11 +81,9 @@ this protection comes at a cost:
and exit (it can be skipped when the kernel is interrupted,
though.) Moves to CR3 are on the order of a hundred
cycles, and are required at every entry and exit.
- b. A "trampoline" must be used for SYSCALL entry. This
- trampoline depends on a smaller set of resources than the
- non-PTI SYSCALL entry code, so requires mapping fewer
- things into the userspace page tables. The downside is
- that stacks must be switched at entry time.
+ b. Percpu TSS is mapped into the user page tables to allow SYSCALL64 path
+ to work under PTI. This doesn't have a direct runtime cost but it can
+ be argued it opens certain timing attack scenarios.
c. Global pages are disabled for all kernel structures not
mapped into both kernel and userspace page tables. This
feature of the MMU allows different processes to share TLB
@@ -167,7 +165,7 @@ that are worth noting here.
* Failures of the selftests/x86 code. Usually a bug in one of the
more obscure corners of entry_64.S
* Crashes in early boot, especially around CPU bringup. Bugs
- in the trampoline code or mappings cause these.
+ in the mappings cause these.
* Crashes at the first interrupt. Caused by bugs in entry_64.S,
like screwing up a page table switch. Also caused by
incorrectly mapping the IRQ handler entry code.
diff --git a/Documentation/arch/x86/resctrl.rst b/Documentation/arch/x86/resctrl.rst
deleted file mode 100644
index 387ccbcb558f..000000000000
--- a/Documentation/arch/x86/resctrl.rst
+++ /dev/null
@@ -1,1447 +0,0 @@
-.. SPDX-License-Identifier: GPL-2.0
-.. include:: <isonum.txt>
-
-===========================================
-User Interface for Resource Control feature
-===========================================
-
-:Copyright: |copy| 2016 Intel Corporation
-:Authors: - Fenghua Yu <fenghua.yu@intel.com>
- - Tony Luck <tony.luck@intel.com>
- - Vikas Shivappa <vikas.shivappa@intel.com>
-
-
-Intel refers to this feature as Intel Resource Director Technology(Intel(R) RDT).
-AMD refers to this feature as AMD Platform Quality of Service(AMD QoS).
-
-This feature is enabled by the CONFIG_X86_CPU_RESCTRL and the x86 /proc/cpuinfo
-flag bits:
-
-=============================================== ================================
-RDT (Resource Director Technology) Allocation "rdt_a"
-CAT (Cache Allocation Technology) "cat_l3", "cat_l2"
-CDP (Code and Data Prioritization) "cdp_l3", "cdp_l2"
-CQM (Cache QoS Monitoring) "cqm_llc", "cqm_occup_llc"
-MBM (Memory Bandwidth Monitoring) "cqm_mbm_total", "cqm_mbm_local"
-MBA (Memory Bandwidth Allocation) "mba"
-SMBA (Slow Memory Bandwidth Allocation) ""
-BMEC (Bandwidth Monitoring Event Configuration) ""
-=============================================== ================================
-
-Historically, new features were made visible by default in /proc/cpuinfo. This
-resulted in the feature flags becoming hard to parse by humans. Adding a new
-flag to /proc/cpuinfo should be avoided if user space can obtain information
-about the feature from resctrl's info directory.
-
-To use the feature mount the file system::
-
- # mount -t resctrl resctrl [-o cdp[,cdpl2][,mba_MBps]] /sys/fs/resctrl
-
-mount options are:
-
-"cdp":
- Enable code/data prioritization in L3 cache allocations.
-"cdpl2":
- Enable code/data prioritization in L2 cache allocations.
-"mba_MBps":
- Enable the MBA Software Controller(mba_sc) to specify MBA
- bandwidth in MBps
-
-L2 and L3 CDP are controlled separately.
-
-RDT features are orthogonal. A particular system may support only
-monitoring, only control, or both monitoring and control. Cache
-pseudo-locking is a unique way of using cache control to "pin" or
-"lock" data in the cache. Details can be found in
-"Cache Pseudo-Locking".
-
-
-The mount succeeds if either of allocation or monitoring is present, but
-only those files and directories supported by the system will be created.
-For more details on the behavior of the interface during monitoring
-and allocation, see the "Resource alloc and monitor groups" section.
-
-Info directory
-==============
-
-The 'info' directory contains information about the enabled
-resources. Each resource has its own subdirectory. The subdirectory
-names reflect the resource names.
-
-Each subdirectory contains the following files with respect to
-allocation:
-
-Cache resource(L3/L2) subdirectory contains the following files
-related to allocation:
-
-"num_closids":
- The number of CLOSIDs which are valid for this
- resource. The kernel uses the smallest number of
- CLOSIDs of all enabled resources as limit.
-"cbm_mask":
- The bitmask which is valid for this resource.
- This mask is equivalent to 100%.
-"min_cbm_bits":
- The minimum number of consecutive bits which
- must be set when writing a mask.
-
-"shareable_bits":
- Bitmask of shareable resource with other executing
- entities (e.g. I/O). User can use this when
- setting up exclusive cache partitions. Note that
- some platforms support devices that have their
- own settings for cache use which can over-ride
- these bits.
-"bit_usage":
- Annotated capacity bitmasks showing how all
- instances of the resource are used. The legend is:
-
- "0":
- Corresponding region is unused. When the system's
- resources have been allocated and a "0" is found
- in "bit_usage" it is a sign that resources are
- wasted.
-
- "H":
- Corresponding region is used by hardware only
- but available for software use. If a resource
- has bits set in "shareable_bits" but not all
- of these bits appear in the resource groups'
- schematas then the bits appearing in
- "shareable_bits" but no resource group will
- be marked as "H".
- "X":
- Corresponding region is available for sharing and
- used by hardware and software. These are the
- bits that appear in "shareable_bits" as
- well as a resource group's allocation.
- "S":
- Corresponding region is used by software
- and available for sharing.
- "E":
- Corresponding region is used exclusively by
- one resource group. No sharing allowed.
- "P":
- Corresponding region is pseudo-locked. No
- sharing allowed.
-
-Memory bandwidth(MB) subdirectory contains the following files
-with respect to allocation:
-
-"min_bandwidth":
- The minimum memory bandwidth percentage which
- user can request.
-
-"bandwidth_gran":
- The granularity in which the memory bandwidth
- percentage is allocated. The allocated
- b/w percentage is rounded off to the next
- control step available on the hardware. The
- available bandwidth control steps are:
- min_bandwidth + N * bandwidth_gran.
-
-"delay_linear":
- Indicates if the delay scale is linear or
- non-linear. This field is purely informational
- only.
-
-"thread_throttle_mode":
- Indicator on Intel systems of how tasks running on threads
- of a physical core are throttled in cases where they
- request different memory bandwidth percentages:
-
- "max":
- the smallest percentage is applied
- to all threads
- "per-thread":
- bandwidth percentages are directly applied to
- the threads running on the core
-
-If RDT monitoring is available there will be an "L3_MON" directory
-with the following files:
-
-"num_rmids":
- The number of RMIDs available. This is the
- upper bound for how many "CTRL_MON" + "MON"
- groups can be created.
-
-"mon_features":
- Lists the monitoring events if
- monitoring is enabled for the resource.
- Example::
-
- # cat /sys/fs/resctrl/info/L3_MON/mon_features
- llc_occupancy
- mbm_total_bytes
- mbm_local_bytes
-
- If the system supports Bandwidth Monitoring Event
- Configuration (BMEC), then the bandwidth events will
- be configurable. The output will be::
-
- # cat /sys/fs/resctrl/info/L3_MON/mon_features
- llc_occupancy
- mbm_total_bytes
- mbm_total_bytes_config
- mbm_local_bytes
- mbm_local_bytes_config
-
-"mbm_total_bytes_config", "mbm_local_bytes_config":
- Read/write files containing the configuration for the mbm_total_bytes
- and mbm_local_bytes events, respectively, when the Bandwidth
- Monitoring Event Configuration (BMEC) feature is supported.
- The event configuration settings are domain specific and affect
- all the CPUs in the domain. When either event configuration is
- changed, the bandwidth counters for all RMIDs of both events
- (mbm_total_bytes as well as mbm_local_bytes) are cleared for that
- domain. The next read for every RMID will report "Unavailable"
- and subsequent reads will report the valid value.
-
- Following are the types of events supported:
-
- ==== ========================================================
- Bits Description
- ==== ========================================================
- 6 Dirty Victims from the QOS domain to all types of memory
- 5 Reads to slow memory in the non-local NUMA domain
- 4 Reads to slow memory in the local NUMA domain
- 3 Non-temporal writes to non-local NUMA domain
- 2 Non-temporal writes to local NUMA domain
- 1 Reads to memory in the non-local NUMA domain
- 0 Reads to memory in the local NUMA domain
- ==== ========================================================
-
- By default, the mbm_total_bytes configuration is set to 0x7f to count
- all the event types and the mbm_local_bytes configuration is set to
- 0x15 to count all the local memory events.
-
- Examples:
-
- * To view the current configuration::
- ::
-
- # cat /sys/fs/resctrl/info/L3_MON/mbm_total_bytes_config
- 0=0x7f;1=0x7f;2=0x7f;3=0x7f
-
- # cat /sys/fs/resctrl/info/L3_MON/mbm_local_bytes_config
- 0=0x15;1=0x15;3=0x15;4=0x15
-
- * To change the mbm_total_bytes to count only reads on domain 0,
- the bits 0, 1, 4 and 5 needs to be set, which is 110011b in binary
- (in hexadecimal 0x33):
- ::
-
- # echo "0=0x33" > /sys/fs/resctrl/info/L3_MON/mbm_total_bytes_config
-
- # cat /sys/fs/resctrl/info/L3_MON/mbm_total_bytes_config
- 0=0x33;1=0x7f;2=0x7f;3=0x7f
-
- * To change the mbm_local_bytes to count all the slow memory reads on
- domain 0 and 1, the bits 4 and 5 needs to be set, which is 110000b
- in binary (in hexadecimal 0x30):
- ::
-
- # echo "0=0x30;1=0x30" > /sys/fs/resctrl/info/L3_MON/mbm_local_bytes_config
-
- # cat /sys/fs/resctrl/info/L3_MON/mbm_local_bytes_config
- 0=0x30;1=0x30;3=0x15;4=0x15
-
-"max_threshold_occupancy":
- Read/write file provides the largest value (in
- bytes) at which a previously used LLC_occupancy
- counter can be considered for re-use.
-
-Finally, in the top level of the "info" directory there is a file
-named "last_cmd_status". This is reset with every "command" issued
-via the file system (making new directories or writing to any of the
-control files). If the command was successful, it will read as "ok".
-If the command failed, it will provide more information that can be
-conveyed in the error returns from file operations. E.g.
-::
-
- # echo L3:0=f7 > schemata
- bash: echo: write error: Invalid argument
- # cat info/last_cmd_status
- mask f7 has non-consecutive 1-bits
-
-Resource alloc and monitor groups
-=================================
-
-Resource groups are represented as directories in the resctrl file
-system. The default group is the root directory which, immediately
-after mounting, owns all the tasks and cpus in the system and can make
-full use of all resources.
-
-On a system with RDT control features additional directories can be
-created in the root directory that specify different amounts of each
-resource (see "schemata" below). The root and these additional top level
-directories are referred to as "CTRL_MON" groups below.
-
-On a system with RDT monitoring the root directory and other top level
-directories contain a directory named "mon_groups" in which additional
-directories can be created to monitor subsets of tasks in the CTRL_MON
-group that is their ancestor. These are called "MON" groups in the rest
-of this document.
-
-Removing a directory will move all tasks and cpus owned by the group it
-represents to the parent. Removing one of the created CTRL_MON groups
-will automatically remove all MON groups below it.
-
-All groups contain the following files:
-
-"tasks":
- Reading this file shows the list of all tasks that belong to
- this group. Writing a task id to the file will add a task to the
- group. If the group is a CTRL_MON group the task is removed from
- whichever previous CTRL_MON group owned the task and also from
- any MON group that owned the task. If the group is a MON group,
- then the task must already belong to the CTRL_MON parent of this
- group. The task is removed from any previous MON group.
-
-
-"cpus":
- Reading this file shows a bitmask of the logical CPUs owned by
- this group. Writing a mask to this file will add and remove
- CPUs to/from this group. As with the tasks file a hierarchy is
- maintained where MON groups may only include CPUs owned by the
- parent CTRL_MON group.
- When the resource group is in pseudo-locked mode this file will
- only be readable, reflecting the CPUs associated with the
- pseudo-locked region.
-
-
-"cpus_list":
- Just like "cpus", only using ranges of CPUs instead of bitmasks.
-
-
-When control is enabled all CTRL_MON groups will also contain:
-
-"schemata":
- A list of all the resources available to this group.
- Each resource has its own line and format - see below for details.
-
-"size":
- Mirrors the display of the "schemata" file to display the size in
- bytes of each allocation instead of the bits representing the
- allocation.
-
-"mode":
- The "mode" of the resource group dictates the sharing of its
- allocations. A "shareable" resource group allows sharing of its
- allocations while an "exclusive" resource group does not. A
- cache pseudo-locked region is created by first writing
- "pseudo-locksetup" to the "mode" file before writing the cache
- pseudo-locked region's schemata to the resource group's "schemata"
- file. On successful pseudo-locked region creation the mode will
- automatically change to "pseudo-locked".
-
-When monitoring is enabled all MON groups will also contain:
-
-"mon_data":
- This contains a set of files organized by L3 domain and by
- RDT event. E.g. on a system with two L3 domains there will
- be subdirectories "mon_L3_00" and "mon_L3_01". Each of these
- directories have one file per event (e.g. "llc_occupancy",
- "mbm_total_bytes", and "mbm_local_bytes"). In a MON group these
- files provide a read out of the current value of the event for
- all tasks in the group. In CTRL_MON groups these files provide
- the sum for all tasks in the CTRL_MON group and all tasks in
- MON groups. Please see example section for more details on usage.
-
-Resource allocation rules
--------------------------
-
-When a task is running the following rules define which resources are
-available to it:
-
-1) If the task is a member of a non-default group, then the schemata
- for that group is used.
-
-2) Else if the task belongs to the default group, but is running on a
- CPU that is assigned to some specific group, then the schemata for the
- CPU's group is used.
-
-3) Otherwise the schemata for the default group is used.
-
-Resource monitoring rules
--------------------------
-1) If a task is a member of a MON group, or non-default CTRL_MON group
- then RDT events for the task will be reported in that group.
-
-2) If a task is a member of the default CTRL_MON group, but is running
- on a CPU that is assigned to some specific group, then the RDT events
- for the task will be reported in that group.
-
-3) Otherwise RDT events for the task will be reported in the root level
- "mon_data" group.
-
-
-Notes on cache occupancy monitoring and control
-===============================================
-When moving a task from one group to another you should remember that
-this only affects *new* cache allocations by the task. E.g. you may have
-a task in a monitor group showing 3 MB of cache occupancy. If you move
-to a new group and immediately check the occupancy of the old and new
-groups you will likely see that the old group is still showing 3 MB and
-the new group zero. When the task accesses locations still in cache from
-before the move, the h/w does not update any counters. On a busy system
-you will likely see the occupancy in the old group go down as cache lines
-are evicted and re-used while the occupancy in the new group rises as
-the task accesses memory and loads into the cache are counted based on
-membership in the new group.
-
-The same applies to cache allocation control. Moving a task to a group
-with a smaller cache partition will not evict any cache lines. The
-process may continue to use them from the old partition.
-
-Hardware uses CLOSid(Class of service ID) and an RMID(Resource monitoring ID)
-to identify a control group and a monitoring group respectively. Each of
-the resource groups are mapped to these IDs based on the kind of group. The
-number of CLOSid and RMID are limited by the hardware and hence the creation of
-a "CTRL_MON" directory may fail if we run out of either CLOSID or RMID
-and creation of "MON" group may fail if we run out of RMIDs.
-
-max_threshold_occupancy - generic concepts
-------------------------------------------
-
-Note that an RMID once freed may not be immediately available for use as
-the RMID is still tagged the cache lines of the previous user of RMID.
-Hence such RMIDs are placed on limbo list and checked back if the cache
-occupancy has gone down. If there is a time when system has a lot of
-limbo RMIDs but which are not ready to be used, user may see an -EBUSY
-during mkdir.
-
-max_threshold_occupancy is a user configurable value to determine the
-occupancy at which an RMID can be freed.
-
-Schemata files - general concepts
----------------------------------
-Each line in the file describes one resource. The line starts with
-the name of the resource, followed by specific values to be applied
-in each of the instances of that resource on the system.
-
-Cache IDs
----------
-On current generation systems there is one L3 cache per socket and L2
-caches are generally just shared by the hyperthreads on a core, but this
-isn't an architectural requirement. We could have multiple separate L3
-caches on a socket, multiple cores could share an L2 cache. So instead
-of using "socket" or "core" to define the set of logical cpus sharing
-a resource we use a "Cache ID". At a given cache level this will be a
-unique number across the whole system (but it isn't guaranteed to be a
-contiguous sequence, there may be gaps). To find the ID for each logical
-CPU look in /sys/devices/system/cpu/cpu*/cache/index*/id
-
-Cache Bit Masks (CBM)
----------------------
-For cache resources we describe the portion of the cache that is available
-for allocation using a bitmask. The maximum value of the mask is defined
-by each cpu model (and may be different for different cache levels). It
-is found using CPUID, but is also provided in the "info" directory of
-the resctrl file system in "info/{resource}/cbm_mask". Intel hardware
-requires that these masks have all the '1' bits in a contiguous block. So
-0x3, 0x6 and 0xC are legal 4-bit masks with two bits set, but 0x5, 0x9
-and 0xA are not. On a system with a 20-bit mask each bit represents 5%
-of the capacity of the cache. You could partition the cache into four
-equal parts with masks: 0x1f, 0x3e0, 0x7c00, 0xf8000.
-
-Memory bandwidth Allocation and monitoring
-==========================================
-
-For Memory bandwidth resource, by default the user controls the resource
-by indicating the percentage of total memory bandwidth.
-
-The minimum bandwidth percentage value for each cpu model is predefined
-and can be looked up through "info/MB/min_bandwidth". The bandwidth
-granularity that is allocated is also dependent on the cpu model and can
-be looked up at "info/MB/bandwidth_gran". The available bandwidth
-control steps are: min_bw + N * bw_gran. Intermediate values are rounded
-to the next control step available on the hardware.
-
-The bandwidth throttling is a core specific mechanism on some of Intel
-SKUs. Using a high bandwidth and a low bandwidth setting on two threads
-sharing a core may result in both threads being throttled to use the
-low bandwidth (see "thread_throttle_mode").
-
-The fact that Memory bandwidth allocation(MBA) may be a core
-specific mechanism where as memory bandwidth monitoring(MBM) is done at
-the package level may lead to confusion when users try to apply control
-via the MBA and then monitor the bandwidth to see if the controls are
-effective. Below are such scenarios:
-
-1. User may *not* see increase in actual bandwidth when percentage
- values are increased:
-
-This can occur when aggregate L2 external bandwidth is more than L3
-external bandwidth. Consider an SKL SKU with 24 cores on a package and
-where L2 external is 10GBps (hence aggregate L2 external bandwidth is
-240GBps) and L3 external bandwidth is 100GBps. Now a workload with '20
-threads, having 50% bandwidth, each consuming 5GBps' consumes the max L3
-bandwidth of 100GBps although the percentage value specified is only 50%
-<< 100%. Hence increasing the bandwidth percentage will not yield any
-more bandwidth. This is because although the L2 external bandwidth still
-has capacity, the L3 external bandwidth is fully used. Also note that
-this would be dependent on number of cores the benchmark is run on.
-
-2. Same bandwidth percentage may mean different actual bandwidth
- depending on # of threads:
-
-For the same SKU in #1, a 'single thread, with 10% bandwidth' and '4
-thread, with 10% bandwidth' can consume upto 10GBps and 40GBps although
-they have same percentage bandwidth of 10%. This is simply because as
-threads start using more cores in an rdtgroup, the actual bandwidth may
-increase or vary although user specified bandwidth percentage is same.
-
-In order to mitigate this and make the interface more user friendly,
-resctrl added support for specifying the bandwidth in MBps as well. The
-kernel underneath would use a software feedback mechanism or a "Software
-Controller(mba_sc)" which reads the actual bandwidth using MBM counters
-and adjust the memory bandwidth percentages to ensure::
-
- "actual bandwidth < user specified bandwidth".
-
-By default, the schemata would take the bandwidth percentage values
-where as user can switch to the "MBA software controller" mode using
-a mount option 'mba_MBps'. The schemata format is specified in the below
-sections.
-
-L3 schemata file details (code and data prioritization disabled)
-----------------------------------------------------------------
-With CDP disabled the L3 schemata format is::
-
- L3:<cache_id0>=<cbm>;<cache_id1>=<cbm>;...
-
-L3 schemata file details (CDP enabled via mount option to resctrl)
-------------------------------------------------------------------
-When CDP is enabled L3 control is split into two separate resources
-so you can specify independent masks for code and data like this::
-
- L3DATA:<cache_id0>=<cbm>;<cache_id1>=<cbm>;...
- L3CODE:<cache_id0>=<cbm>;<cache_id1>=<cbm>;...
-
-L2 schemata file details
-------------------------
-CDP is supported at L2 using the 'cdpl2' mount option. The schemata
-format is either::
-
- L2:<cache_id0>=<cbm>;<cache_id1>=<cbm>;...
-
-or
-
- L2DATA:<cache_id0>=<cbm>;<cache_id1>=<cbm>;...
- L2CODE:<cache_id0>=<cbm>;<cache_id1>=<cbm>;...
-
-
-Memory bandwidth Allocation (default mode)
-------------------------------------------
-
-Memory b/w domain is L3 cache.
-::
-
- MB:<cache_id0>=bandwidth0;<cache_id1>=bandwidth1;...
-
-Memory bandwidth Allocation specified in MBps
----------------------------------------------
-
-Memory bandwidth domain is L3 cache.
-::
-
- MB:<cache_id0>=bw_MBps0;<cache_id1>=bw_MBps1;...
-
-Slow Memory Bandwidth Allocation (SMBA)
----------------------------------------
-AMD hardware supports Slow Memory Bandwidth Allocation (SMBA).
-CXL.memory is the only supported "slow" memory device. With the
-support of SMBA, the hardware enables bandwidth allocation on
-the slow memory devices. If there are multiple such devices in
-the system, the throttling logic groups all the slow sources
-together and applies the limit on them as a whole.
-
-The presence of SMBA (with CXL.memory) is independent of slow memory
-devices presence. If there are no such devices on the system, then
-configuring SMBA will have no impact on the performance of the system.
-
-The bandwidth domain for slow memory is L3 cache. Its schemata file
-is formatted as:
-::
-
- SMBA:<cache_id0>=bandwidth0;<cache_id1>=bandwidth1;...
-
-Reading/writing the schemata file
----------------------------------
-Reading the schemata file will show the state of all resources
-on all domains. When writing you only need to specify those values
-which you wish to change. E.g.
-::
-
- # cat schemata
- L3DATA:0=fffff;1=fffff;2=fffff;3=fffff
- L3CODE:0=fffff;1=fffff;2=fffff;3=fffff
- # echo "L3DATA:2=3c0;" > schemata
- # cat schemata
- L3DATA:0=fffff;1=fffff;2=3c0;3=fffff
- L3CODE:0=fffff;1=fffff;2=fffff;3=fffff
-
-Reading/writing the schemata file (on AMD systems)
---------------------------------------------------
-Reading the schemata file will show the current bandwidth limit on all
-domains. The allocated resources are in multiples of one eighth GB/s.
-When writing to the file, you need to specify what cache id you wish to
-configure the bandwidth limit.
-
-For example, to allocate 2GB/s limit on the first cache id:
-
-::
-
- # cat schemata
- MB:0=2048;1=2048;2=2048;3=2048
- L3:0=ffff;1=ffff;2=ffff;3=ffff
-
- # echo "MB:1=16" > schemata
- # cat schemata
- MB:0=2048;1= 16;2=2048;3=2048
- L3:0=ffff;1=ffff;2=ffff;3=ffff
-
-Reading/writing the schemata file (on AMD systems) with SMBA feature
---------------------------------------------------------------------
-Reading and writing the schemata file is the same as without SMBA in
-above section.
-
-For example, to allocate 8GB/s limit on the first cache id:
-
-::
-
- # cat schemata
- SMBA:0=2048;1=2048;2=2048;3=2048
- MB:0=2048;1=2048;2=2048;3=2048
- L3:0=ffff;1=ffff;2=ffff;3=ffff
-
- # echo "SMBA:1=64" > schemata
- # cat schemata
- SMBA:0=2048;1= 64;2=2048;3=2048
- MB:0=2048;1=2048;2=2048;3=2048
- L3:0=ffff;1=ffff;2=ffff;3=ffff
-
-Cache Pseudo-Locking
-====================
-CAT enables a user to specify the amount of cache space that an
-application can fill. Cache pseudo-locking builds on the fact that a
-CPU can still read and write data pre-allocated outside its current
-allocated area on a cache hit. With cache pseudo-locking, data can be
-preloaded into a reserved portion of cache that no application can
-fill, and from that point on will only serve cache hits. The cache
-pseudo-locked memory is made accessible to user space where an
-application can map it into its virtual address space and thus have
-a region of memory with reduced average read latency.
-
-The creation of a cache pseudo-locked region is triggered by a request
-from the user to do so that is accompanied by a schemata of the region
-to be pseudo-locked. The cache pseudo-locked region is created as follows:
-
-- Create a CAT allocation CLOSNEW with a CBM matching the schemata
- from the user of the cache region that will contain the pseudo-locked
- memory. This region must not overlap with any current CAT allocation/CLOS
- on the system and no future overlap with this cache region is allowed
- while the pseudo-locked region exists.
-- Create a contiguous region of memory of the same size as the cache
- region.
-- Flush the cache, disable hardware prefetchers, disable preemption.
-- Make CLOSNEW the active CLOS and touch the allocated memory to load
- it into the cache.
-- Set the previous CLOS as active.
-- At this point the closid CLOSNEW can be released - the cache
- pseudo-locked region is protected as long as its CBM does not appear in
- any CAT allocation. Even though the cache pseudo-locked region will from
- this point on not appear in any CBM of any CLOS an application running with
- any CLOS will be able to access the memory in the pseudo-locked region since
- the region continues to serve cache hits.
-- The contiguous region of memory loaded into the cache is exposed to
- user-space as a character device.
-
-Cache pseudo-locking increases the probability that data will remain
-in the cache via carefully configuring the CAT feature and controlling
-application behavior. There is no guarantee that data is placed in
-cache. Instructions like INVD, WBINVD, CLFLUSH, etc. can still evict
-“locked” data from cache. Power management C-states may shrink or
-power off cache. Deeper C-states will automatically be restricted on
-pseudo-locked region creation.
-
-It is required that an application using a pseudo-locked region runs
-with affinity to the cores (or a subset of the cores) associated
-with the cache on which the pseudo-locked region resides. A sanity check
-within the code will not allow an application to map pseudo-locked memory
-unless it runs with affinity to cores associated with the cache on which the
-pseudo-locked region resides. The sanity check is only done during the
-initial mmap() handling, there is no enforcement afterwards and the
-application self needs to ensure it remains affine to the correct cores.
-
-Pseudo-locking is accomplished in two stages:
-
-1) During the first stage the system administrator allocates a portion
- of cache that should be dedicated to pseudo-locking. At this time an
- equivalent portion of memory is allocated, loaded into allocated
- cache portion, and exposed as a character device.
-2) During the second stage a user-space application maps (mmap()) the
- pseudo-locked memory into its address space.
-
-Cache Pseudo-Locking Interface
-------------------------------
-A pseudo-locked region is created using the resctrl interface as follows:
-
-1) Create a new resource group by creating a new directory in /sys/fs/resctrl.
-2) Change the new resource group's mode to "pseudo-locksetup" by writing
- "pseudo-locksetup" to the "mode" file.
-3) Write the schemata of the pseudo-locked region to the "schemata" file. All
- bits within the schemata should be "unused" according to the "bit_usage"
- file.
-
-On successful pseudo-locked region creation the "mode" file will contain
-"pseudo-locked" and a new character device with the same name as the resource
-group will exist in /dev/pseudo_lock. This character device can be mmap()'ed
-by user space in order to obtain access to the pseudo-locked memory region.
-
-An example of cache pseudo-locked region creation and usage can be found below.
-
-Cache Pseudo-Locking Debugging Interface
-----------------------------------------
-The pseudo-locking debugging interface is enabled by default (if
-CONFIG_DEBUG_FS is enabled) and can be found in /sys/kernel/debug/resctrl.
-
-There is no explicit way for the kernel to test if a provided memory
-location is present in the cache. The pseudo-locking debugging interface uses
-the tracing infrastructure to provide two ways to measure cache residency of
-the pseudo-locked region:
-
-1) Memory access latency using the pseudo_lock_mem_latency tracepoint. Data
- from these measurements are best visualized using a hist trigger (see
- example below). In this test the pseudo-locked region is traversed at
- a stride of 32 bytes while hardware prefetchers and preemption
- are disabled. This also provides a substitute visualization of cache
- hits and misses.
-2) Cache hit and miss measurements using model specific precision counters if
- available. Depending on the levels of cache on the system the pseudo_lock_l2
- and pseudo_lock_l3 tracepoints are available.
-
-When a pseudo-locked region is created a new debugfs directory is created for
-it in debugfs as /sys/kernel/debug/resctrl/<newdir>. A single
-write-only file, pseudo_lock_measure, is present in this directory. The
-measurement of the pseudo-locked region depends on the number written to this
-debugfs file:
-
-1:
- writing "1" to the pseudo_lock_measure file will trigger the latency
- measurement captured in the pseudo_lock_mem_latency tracepoint. See
- example below.
-2:
- writing "2" to the pseudo_lock_measure file will trigger the L2 cache
- residency (cache hits and misses) measurement captured in the
- pseudo_lock_l2 tracepoint. See example below.
-3:
- writing "3" to the pseudo_lock_measure file will trigger the L3 cache
- residency (cache hits and misses) measurement captured in the
- pseudo_lock_l3 tracepoint.
-
-All measurements are recorded with the tracing infrastructure. This requires
-the relevant tracepoints to be enabled before the measurement is triggered.
-
-Example of latency debugging interface
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-In this example a pseudo-locked region named "newlock" was created. Here is
-how we can measure the latency in cycles of reading from this region and
-visualize this data with a histogram that is available if CONFIG_HIST_TRIGGERS
-is set::
-
- # :> /sys/kernel/tracing/trace
- # echo 'hist:keys=latency' > /sys/kernel/tracing/events/resctrl/pseudo_lock_mem_latency/trigger
- # echo 1 > /sys/kernel/tracing/events/resctrl/pseudo_lock_mem_latency/enable
- # echo 1 > /sys/kernel/debug/resctrl/newlock/pseudo_lock_measure
- # echo 0 > /sys/kernel/tracing/events/resctrl/pseudo_lock_mem_latency/enable
- # cat /sys/kernel/tracing/events/resctrl/pseudo_lock_mem_latency/hist
-
- # event histogram
- #
- # trigger info: hist:keys=latency:vals=hitcount:sort=hitcount:size=2048 [active]
- #
-
- { latency: 456 } hitcount: 1
- { latency: 50 } hitcount: 83
- { latency: 36 } hitcount: 96
- { latency: 44 } hitcount: 174
- { latency: 48 } hitcount: 195
- { latency: 46 } hitcount: 262
- { latency: 42 } hitcount: 693
- { latency: 40 } hitcount: 3204
- { latency: 38 } hitcount: 3484
-
- Totals:
- Hits: 8192
- Entries: 9
- Dropped: 0
-
-Example of cache hits/misses debugging
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-In this example a pseudo-locked region named "newlock" was created on the L2
-cache of a platform. Here is how we can obtain details of the cache hits
-and misses using the platform's precision counters.
-::
-
- # :> /sys/kernel/tracing/trace
- # echo 1 > /sys/kernel/tracing/events/resctrl/pseudo_lock_l2/enable
- # echo 2 > /sys/kernel/debug/resctrl/newlock/pseudo_lock_measure
- # echo 0 > /sys/kernel/tracing/events/resctrl/pseudo_lock_l2/enable
- # cat /sys/kernel/tracing/trace
-
- # tracer: nop
- #
- # _-----=> irqs-off
- # / _----=> need-resched
- # | / _---=> hardirq/softirq
- # || / _--=> preempt-depth
- # ||| / delay
- # TASK-PID CPU# |||| TIMESTAMP FUNCTION
- # | | | |||| | |
- pseudo_lock_mea-1672 [002] .... 3132.860500: pseudo_lock_l2: hits=4097 miss=0
-
-
-Examples for RDT allocation usage
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-1) Example 1
-
-On a two socket machine (one L3 cache per socket) with just four bits
-for cache bit masks, minimum b/w of 10% with a memory bandwidth
-granularity of 10%.
-::
-
- # mount -t resctrl resctrl /sys/fs/resctrl
- # cd /sys/fs/resctrl
- # mkdir p0 p1
- # echo "L3:0=3;1=c\nMB:0=50;1=50" > /sys/fs/resctrl/p0/schemata
- # echo "L3:0=3;1=3\nMB:0=50;1=50" > /sys/fs/resctrl/p1/schemata
-
-The default resource group is unmodified, so we have access to all parts
-of all caches (its schemata file reads "L3:0=f;1=f").
-
-Tasks that are under the control of group "p0" may only allocate from the
-"lower" 50% on cache ID 0, and the "upper" 50% of cache ID 1.
-Tasks in group "p1" use the "lower" 50% of cache on both sockets.
-
-Similarly, tasks that are under the control of group "p0" may use a
-maximum memory b/w of 50% on socket0 and 50% on socket 1.
-Tasks in group "p1" may also use 50% memory b/w on both sockets.
-Note that unlike cache masks, memory b/w cannot specify whether these
-allocations can overlap or not. The allocations specifies the maximum
-b/w that the group may be able to use and the system admin can configure
-the b/w accordingly.
-
-If resctrl is using the software controller (mba_sc) then user can enter the
-max b/w in MB rather than the percentage values.
-::
-
- # echo "L3:0=3;1=c\nMB:0=1024;1=500" > /sys/fs/resctrl/p0/schemata
- # echo "L3:0=3;1=3\nMB:0=1024;1=500" > /sys/fs/resctrl/p1/schemata
-
-In the above example the tasks in "p1" and "p0" on socket 0 would use a max b/w
-of 1024MB where as on socket 1 they would use 500MB.
-
-2) Example 2
-
-Again two sockets, but this time with a more realistic 20-bit mask.
-
-Two real time tasks pid=1234 running on processor 0 and pid=5678 running on
-processor 1 on socket 0 on a 2-socket and dual core machine. To avoid noisy
-neighbors, each of the two real-time tasks exclusively occupies one quarter
-of L3 cache on socket 0.
-::
-
- # mount -t resctrl resctrl /sys/fs/resctrl
- # cd /sys/fs/resctrl
-
-First we reset the schemata for the default group so that the "upper"
-50% of the L3 cache on socket 0 and 50% of memory b/w cannot be used by
-ordinary tasks::
-
- # echo "L3:0=3ff;1=fffff\nMB:0=50;1=100" > schemata
-
-Next we make a resource group for our first real time task and give
-it access to the "top" 25% of the cache on socket 0.
-::
-
- # mkdir p0
- # echo "L3:0=f8000;1=fffff" > p0/schemata
-
-Finally we move our first real time task into this resource group. We
-also use taskset(1) to ensure the task always runs on a dedicated CPU
-on socket 0. Most uses of resource groups will also constrain which
-processors tasks run on.
-::
-
- # echo 1234 > p0/tasks
- # taskset -cp 1 1234
-
-Ditto for the second real time task (with the remaining 25% of cache)::
-
- # mkdir p1
- # echo "L3:0=7c00;1=fffff" > p1/schemata
- # echo 5678 > p1/tasks
- # taskset -cp 2 5678
-
-For the same 2 socket system with memory b/w resource and CAT L3 the
-schemata would look like(Assume min_bandwidth 10 and bandwidth_gran is
-10):
-
-For our first real time task this would request 20% memory b/w on socket 0.
-::
-
- # echo -e "L3:0=f8000;1=fffff\nMB:0=20;1=100" > p0/schemata
-
-For our second real time task this would request an other 20% memory b/w
-on socket 0.
-::
-
- # echo -e "L3:0=f8000;1=fffff\nMB:0=20;1=100" > p0/schemata
-
-3) Example 3
-
-A single socket system which has real-time tasks running on core 4-7 and
-non real-time workload assigned to core 0-3. The real-time tasks share text
-and data, so a per task association is not required and due to interaction
-with the kernel it's desired that the kernel on these cores shares L3 with
-the tasks.
-::
-
- # mount -t resctrl resctrl /sys/fs/resctrl
- # cd /sys/fs/resctrl
-
-First we reset the schemata for the default group so that the "upper"
-50% of the L3 cache on socket 0, and 50% of memory bandwidth on socket 0
-cannot be used by ordinary tasks::
-
- # echo "L3:0=3ff\nMB:0=50" > schemata
-
-Next we make a resource group for our real time cores and give it access
-to the "top" 50% of the cache on socket 0 and 50% of memory bandwidth on
-socket 0.
-::
-
- # mkdir p0
- # echo "L3:0=ffc00\nMB:0=50" > p0/schemata
-
-Finally we move core 4-7 over to the new group and make sure that the
-kernel and the tasks running there get 50% of the cache. They should
-also get 50% of memory bandwidth assuming that the cores 4-7 are SMT
-siblings and only the real time threads are scheduled on the cores 4-7.
-::
-
- # echo F0 > p0/cpus
-
-4) Example 4
-
-The resource groups in previous examples were all in the default "shareable"
-mode allowing sharing of their cache allocations. If one resource group
-configures a cache allocation then nothing prevents another resource group
-to overlap with that allocation.
-
-In this example a new exclusive resource group will be created on a L2 CAT
-system with two L2 cache instances that can be configured with an 8-bit
-capacity bitmask. The new exclusive resource group will be configured to use
-25% of each cache instance.
-::
-
- # mount -t resctrl resctrl /sys/fs/resctrl/
- # cd /sys/fs/resctrl
-
-First, we observe that the default group is configured to allocate to all L2
-cache::
-
- # cat schemata
- L2:0=ff;1=ff
-
-We could attempt to create the new resource group at this point, but it will
-fail because of the overlap with the schemata of the default group::
-
- # mkdir p0
- # echo 'L2:0=0x3;1=0x3' > p0/schemata
- # cat p0/mode
- shareable
- # echo exclusive > p0/mode
- -sh: echo: write error: Invalid argument
- # cat info/last_cmd_status
- schemata overlaps
-
-To ensure that there is no overlap with another resource group the default
-resource group's schemata has to change, making it possible for the new
-resource group to become exclusive.
-::
-
- # echo 'L2:0=0xfc;1=0xfc' > schemata
- # echo exclusive > p0/mode
- # grep . p0/*
- p0/cpus:0
- p0/mode:exclusive
- p0/schemata:L2:0=03;1=03
- p0/size:L2:0=262144;1=262144
-
-A new resource group will on creation not overlap with an exclusive resource
-group::
-
- # mkdir p1
- # grep . p1/*
- p1/cpus:0
- p1/mode:shareable
- p1/schemata:L2:0=fc;1=fc
- p1/size:L2:0=786432;1=786432
-
-The bit_usage will reflect how the cache is used::
-
- # cat info/L2/bit_usage
- 0=SSSSSSEE;1=SSSSSSEE
-
-A resource group cannot be forced to overlap with an exclusive resource group::
-
- # echo 'L2:0=0x1;1=0x1' > p1/schemata
- -sh: echo: write error: Invalid argument
- # cat info/last_cmd_status
- overlaps with exclusive group
-
-Example of Cache Pseudo-Locking
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-Lock portion of L2 cache from cache id 1 using CBM 0x3. Pseudo-locked
-region is exposed at /dev/pseudo_lock/newlock that can be provided to
-application for argument to mmap().
-::
-
- # mount -t resctrl resctrl /sys/fs/resctrl/
- # cd /sys/fs/resctrl
-
-Ensure that there are bits available that can be pseudo-locked, since only
-unused bits can be pseudo-locked the bits to be pseudo-locked needs to be
-removed from the default resource group's schemata::
-
- # cat info/L2/bit_usage
- 0=SSSSSSSS;1=SSSSSSSS
- # echo 'L2:1=0xfc' > schemata
- # cat info/L2/bit_usage
- 0=SSSSSSSS;1=SSSSSS00
-
-Create a new resource group that will be associated with the pseudo-locked
-region, indicate that it will be used for a pseudo-locked region, and
-configure the requested pseudo-locked region capacity bitmask::
-
- # mkdir newlock
- # echo pseudo-locksetup > newlock/mode
- # echo 'L2:1=0x3' > newlock/schemata
-
-On success the resource group's mode will change to pseudo-locked, the
-bit_usage will reflect the pseudo-locked region, and the character device
-exposing the pseudo-locked region will exist::
-
- # cat newlock/mode
- pseudo-locked
- # cat info/L2/bit_usage
- 0=SSSSSSSS;1=SSSSSSPP
- # ls -l /dev/pseudo_lock/newlock
- crw------- 1 root root 243, 0 Apr 3 05:01 /dev/pseudo_lock/newlock
-
-::
-
- /*
- * Example code to access one page of pseudo-locked cache region
- * from user space.
- */
- #define _GNU_SOURCE
- #include <fcntl.h>
- #include <sched.h>
- #include <stdio.h>
- #include <stdlib.h>
- #include <unistd.h>
- #include <sys/mman.h>
-
- /*
- * It is required that the application runs with affinity to only
- * cores associated with the pseudo-locked region. Here the cpu
- * is hardcoded for convenience of example.
- */
- static int cpuid = 2;
-
- int main(int argc, char *argv[])
- {
- cpu_set_t cpuset;
- long page_size;
- void *mapping;
- int dev_fd;
- int ret;
-
- page_size = sysconf(_SC_PAGESIZE);
-
- CPU_ZERO(&cpuset);
- CPU_SET(cpuid, &cpuset);
- ret = sched_setaffinity(0, sizeof(cpuset), &cpuset);
- if (ret < 0) {
- perror("sched_setaffinity");
- exit(EXIT_FAILURE);
- }
-
- dev_fd = open("/dev/pseudo_lock/newlock", O_RDWR);
- if (dev_fd < 0) {
- perror("open");
- exit(EXIT_FAILURE);
- }
-
- mapping = mmap(0, page_size, PROT_READ | PROT_WRITE, MAP_SHARED,
- dev_fd, 0);
- if (mapping == MAP_FAILED) {
- perror("mmap");
- close(dev_fd);
- exit(EXIT_FAILURE);
- }
-
- /* Application interacts with pseudo-locked memory @mapping */
-
- ret = munmap(mapping, page_size);
- if (ret < 0) {
- perror("munmap");
- close(dev_fd);
- exit(EXIT_FAILURE);
- }
-
- close(dev_fd);
- exit(EXIT_SUCCESS);
- }
-
-Locking between applications
-----------------------------
-
-Certain operations on the resctrl filesystem, composed of read/writes
-to/from multiple files, must be atomic.
-
-As an example, the allocation of an exclusive reservation of L3 cache
-involves:
-
- 1. Read the cbmmasks from each directory or the per-resource "bit_usage"
- 2. Find a contiguous set of bits in the global CBM bitmask that is clear
- in any of the directory cbmmasks
- 3. Create a new directory
- 4. Set the bits found in step 2 to the new directory "schemata" file
-
-If two applications attempt to allocate space concurrently then they can
-end up allocating the same bits so the reservations are shared instead of
-exclusive.
-
-To coordinate atomic operations on the resctrlfs and to avoid the problem
-above, the following locking procedure is recommended:
-
-Locking is based on flock, which is available in libc and also as a shell
-script command
-
-Write lock:
-
- A) Take flock(LOCK_EX) on /sys/fs/resctrl
- B) Read/write the directory structure.
- C) funlock
-
-Read lock:
-
- A) Take flock(LOCK_SH) on /sys/fs/resctrl
- B) If success read the directory structure.
- C) funlock
-
-Example with bash::
-
- # Atomically read directory structure
- $ flock -s /sys/fs/resctrl/ find /sys/fs/resctrl
-
- # Read directory contents and create new subdirectory
-
- $ cat create-dir.sh
- find /sys/fs/resctrl/ > output.txt
- mask = function-of(output.txt)
- mkdir /sys/fs/resctrl/newres/
- echo mask > /sys/fs/resctrl/newres/schemata
-
- $ flock /sys/fs/resctrl/ ./create-dir.sh
-
-Example with C::
-
- /*
- * Example code do take advisory locks
- * before accessing resctrl filesystem
- */
- #include <sys/file.h>
- #include <stdlib.h>
-
- void resctrl_take_shared_lock(int fd)
- {
- int ret;
-
- /* take shared lock on resctrl filesystem */
- ret = flock(fd, LOCK_SH);
- if (ret) {
- perror("flock");
- exit(-1);
- }
- }
-
- void resctrl_take_exclusive_lock(int fd)
- {
- int ret;
-
- /* release lock on resctrl filesystem */
- ret = flock(fd, LOCK_EX);
- if (ret) {
- perror("flock");
- exit(-1);
- }
- }
-
- void resctrl_release_lock(int fd)
- {
- int ret;
-
- /* take shared lock on resctrl filesystem */
- ret = flock(fd, LOCK_UN);
- if (ret) {
- perror("flock");
- exit(-1);
- }
- }
-
- void main(void)
- {
- int fd, ret;
-
- fd = open("/sys/fs/resctrl", O_DIRECTORY);
- if (fd == -1) {
- perror("open");
- exit(-1);
- }
- resctrl_take_shared_lock(fd);
- /* code to read directory contents */
- resctrl_release_lock(fd);
-
- resctrl_take_exclusive_lock(fd);
- /* code to read and write directory contents */
- resctrl_release_lock(fd);
- }
-
-Examples for RDT Monitoring along with allocation usage
-=======================================================
-Reading monitored data
-----------------------
-Reading an event file (for ex: mon_data/mon_L3_00/llc_occupancy) would
-show the current snapshot of LLC occupancy of the corresponding MON
-group or CTRL_MON group.
-
-
-Example 1 (Monitor CTRL_MON group and subset of tasks in CTRL_MON group)
-------------------------------------------------------------------------
-On a two socket machine (one L3 cache per socket) with just four bits
-for cache bit masks::
-
- # mount -t resctrl resctrl /sys/fs/resctrl
- # cd /sys/fs/resctrl
- # mkdir p0 p1
- # echo "L3:0=3;1=c" > /sys/fs/resctrl/p0/schemata
- # echo "L3:0=3;1=3" > /sys/fs/resctrl/p1/schemata
- # echo 5678 > p1/tasks
- # echo 5679 > p1/tasks
-
-The default resource group is unmodified, so we have access to all parts
-of all caches (its schemata file reads "L3:0=f;1=f").
-
-Tasks that are under the control of group "p0" may only allocate from the
-"lower" 50% on cache ID 0, and the "upper" 50% of cache ID 1.
-Tasks in group "p1" use the "lower" 50% of cache on both sockets.
-
-Create monitor groups and assign a subset of tasks to each monitor group.
-::
-
- # cd /sys/fs/resctrl/p1/mon_groups
- # mkdir m11 m12
- # echo 5678 > m11/tasks
- # echo 5679 > m12/tasks
-
-fetch data (data shown in bytes)
-::
-
- # cat m11/mon_data/mon_L3_00/llc_occupancy
- 16234000
- # cat m11/mon_data/mon_L3_01/llc_occupancy
- 14789000
- # cat m12/mon_data/mon_L3_00/llc_occupancy
- 16789000
-
-The parent ctrl_mon group shows the aggregated data.
-::
-
- # cat /sys/fs/resctrl/p1/mon_data/mon_l3_00/llc_occupancy
- 31234000
-
-Example 2 (Monitor a task from its creation)
---------------------------------------------
-On a two socket machine (one L3 cache per socket)::
-
- # mount -t resctrl resctrl /sys/fs/resctrl
- # cd /sys/fs/resctrl
- # mkdir p0 p1
-
-An RMID is allocated to the group once its created and hence the <cmd>
-below is monitored from its creation.
-::
-
- # echo $$ > /sys/fs/resctrl/p1/tasks
- # <cmd>
-
-Fetch the data::
-
- # cat /sys/fs/resctrl/p1/mon_data/mon_l3_00/llc_occupancy
- 31789000
-
-Example 3 (Monitor without CAT support or before creating CAT groups)
----------------------------------------------------------------------
-
-Assume a system like HSW has only CQM and no CAT support. In this case
-the resctrl will still mount but cannot create CTRL_MON directories.
-But user can create different MON groups within the root group thereby
-able to monitor all tasks including kernel threads.
-
-This can also be used to profile jobs cache size footprint before being
-able to allocate them to different allocation groups.
-::
-
- # mount -t resctrl resctrl /sys/fs/resctrl
- # cd /sys/fs/resctrl
- # mkdir mon_groups/m01
- # mkdir mon_groups/m02
-
- # echo 3478 > /sys/fs/resctrl/mon_groups/m01/tasks
- # echo 2467 > /sys/fs/resctrl/mon_groups/m02/tasks
-
-Monitor the groups separately and also get per domain data. From the
-below its apparent that the tasks are mostly doing work on
-domain(socket) 0.
-::
-
- # cat /sys/fs/resctrl/mon_groups/m01/mon_L3_00/llc_occupancy
- 31234000
- # cat /sys/fs/resctrl/mon_groups/m01/mon_L3_01/llc_occupancy
- 34555
- # cat /sys/fs/resctrl/mon_groups/m02/mon_L3_00/llc_occupancy
- 31234000
- # cat /sys/fs/resctrl/mon_groups/m02/mon_L3_01/llc_occupancy
- 32789
-
-
-Example 4 (Monitor real time tasks)
------------------------------------
-
-A single socket system which has real time tasks running on cores 4-7
-and non real time tasks on other cpus. We want to monitor the cache
-occupancy of the real time threads on these cores.
-::
-
- # mount -t resctrl resctrl /sys/fs/resctrl
- # cd /sys/fs/resctrl
- # mkdir p1
-
-Move the cpus 4-7 over to p1::
-
- # echo f0 > p1/cpus
-
-View the llc occupancy snapshot::
-
- # cat /sys/fs/resctrl/p1/mon_data/mon_L3_00/llc_occupancy
- 11234000
-
-Intel RDT Errata
-================
-
-Intel MBM Counters May Report System Memory Bandwidth Incorrectly
------------------------------------------------------------------
-
-Errata SKX99 for Skylake server and BDF102 for Broadwell server.
-
-Problem: Intel Memory Bandwidth Monitoring (MBM) counters track metrics
-according to the assigned Resource Monitor ID (RMID) for that logical
-core. The IA32_QM_CTR register (MSR 0xC8E), used to report these
-metrics, may report incorrect system bandwidth for certain RMID values.
-
-Implication: Due to the errata, system memory bandwidth may not match
-what is reported.
-
-Workaround: MBM total and local readings are corrected according to the
-following correction factor table:
-
-+---------------+---------------+---------------+-----------------+
-|core count |rmid count |rmid threshold |correction factor|
-+---------------+---------------+---------------+-----------------+
-|1 |8 |0 |1.000000 |
-+---------------+---------------+---------------+-----------------+
-|2 |16 |0 |1.000000 |
-+---------------+---------------+---------------+-----------------+
-|3 |24 |15 |0.969650 |
-+---------------+---------------+---------------+-----------------+
-|4 |32 |0 |1.000000 |
-+---------------+---------------+---------------+-----------------+
-|6 |48 |31 |0.969650 |
-+---------------+---------------+---------------+-----------------+
-|7 |56 |47 |1.142857 |
-+---------------+---------------+---------------+-----------------+
-|8 |64 |0 |1.000000 |
-+---------------+---------------+---------------+-----------------+
-|9 |72 |63 |1.185115 |
-+---------------+---------------+---------------+-----------------+
-|10 |80 |63 |1.066553 |
-+---------------+---------------+---------------+-----------------+
-|11 |88 |79 |1.454545 |
-+---------------+---------------+---------------+-----------------+
-|12 |96 |0 |1.000000 |
-+---------------+---------------+---------------+-----------------+
-|13 |104 |95 |1.230769 |
-+---------------+---------------+---------------+-----------------+
-|14 |112 |95 |1.142857 |
-+---------------+---------------+---------------+-----------------+
-|15 |120 |95 |1.066667 |
-+---------------+---------------+---------------+-----------------+
-|16 |128 |0 |1.000000 |
-+---------------+---------------+---------------+-----------------+
-|17 |136 |127 |1.254863 |
-+---------------+---------------+---------------+-----------------+
-|18 |144 |127 |1.185255 |
-+---------------+---------------+---------------+-----------------+
-|19 |152 |0 |1.000000 |
-+---------------+---------------+---------------+-----------------+
-|20 |160 |127 |1.066667 |
-+---------------+---------------+---------------+-----------------+
-|21 |168 |0 |1.000000 |
-+---------------+---------------+---------------+-----------------+
-|22 |176 |159 |1.454334 |
-+---------------+---------------+---------------+-----------------+
-|23 |184 |0 |1.000000 |
-+---------------+---------------+---------------+-----------------+
-|24 |192 |127 |0.969744 |
-+---------------+---------------+---------------+-----------------+
-|25 |200 |191 |1.280246 |
-+---------------+---------------+---------------+-----------------+
-|26 |208 |191 |1.230921 |
-+---------------+---------------+---------------+-----------------+
-|27 |216 |0 |1.000000 |
-+---------------+---------------+---------------+-----------------+
-|28 |224 |191 |1.143118 |
-+---------------+---------------+---------------+-----------------+
-
-If rmid > rmid threshold, MBM total and local values should be multiplied
-by the correction factor.
-
-See:
-
-1. Erratum SKX99 in Intel Xeon Processor Scalable Family Specification Update:
-http://web.archive.org/web/20200716124958/https://www.intel.com/content/www/us/en/processors/xeon/scalable/xeon-scalable-spec-update.html
-
-2. Erratum BDF102 in Intel Xeon E5-2600 v4 Processor Product Family Specification Update:
-http://web.archive.org/web/20191125200531/https://www.intel.com/content/dam/www/public/us/en/documents/specification-updates/xeon-e5-v4-spec-update.pdf
-
-3. The errata in Intel Resource Director Technology (Intel RDT) on 2nd Generation Intel Xeon Scalable Processors Reference Manual:
-https://software.intel.com/content/www/us/en/develop/articles/intel-resource-director-technology-rdt-reference-manual.html
-
-for further information.
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active &amp;lt;br&amp;gt;core back to&amp;lt;br&amp;gt;ACPI C3&quot; style=&quot;rounded=1;whiteSpace=wrap;html=1;absoluteArcSize=1;arcSize=14;strokeWidth=2;labelBackgroundColor=none;fillColor=#F2CC8F;strokeColor=#E07A5F;fontColor=#393C56;&quot; vertex=&quot;1&quot; parent=&quot;1&quot;&gt;&#10; &lt;mxGeometry x=&quot;240&quot; y=&quot;110&quot; width=&quot;100&quot; height=&quot;100&quot; as=&quot;geometry&quot; /&gt;&#10; &lt;/mxCell&gt;&#10; &lt;mxCell id=&quot;jeVlbFHk8Qahp5zcIn_D-55&quot; value=&quot;MP1 puts system back to sleep&quot; style=&quot;strokeWidth=2;html=1;shape=mxgraph.flowchart.terminator;whiteSpace=wrap;labelBackgroundColor=none;fillColor=#F27979;strokeColor=#E07A5F;fontColor=#393C56;&quot; vertex=&quot;1&quot; parent=&quot;1&quot;&gt;&#10; &lt;mxGeometry x=&quot;240&quot; y=&quot;-20&quot; width=&quot;100&quot; height=&quot;60&quot; as=&quot;geometry&quot; /&gt;&#10; &lt;/mxCell&gt;&#10; &lt;/root&gt;&#10; &lt;/mxGraphModel&gt;&#10; 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BUCGIKAglKTvPKPg1y5TYqrNoqxqCO1ndIBLEF4OcBSjHw67HZvDFongxNEAF2PInMtn78IAJe++uOICpjE4UuvvMhCBGXaATATrYpEUoQRpUpVjcEIZlHQdqm0le/MjJrNr931H6XB74svVtP69uFIEJfE364aYLwQ8j2u0w5SPXjSX1vcxMvVg2MpwmibOCtHL0g4zqYlumnPbyHp2NfgOnjWTTIJjypNwigQnwUpG1h4CEx4Q2jWlGH5y2knta3Jgj1IRc5nOvicTEvDDUWk4gHk0d+vTChJcKtZBr3ptPrhJVUmZhjukRMKhFFqxksyeKcKhFTWQJ3iRxaeHGvyqUTNpl/NT30fifIJjypBDHNIiYX8VCYgLsqq+tpfWuCUB/yuiEIl0ELZF7q121ZuADZLWUqCEJmWTRZN6ZpU1Izvj86PPf8Uhwil8RNnulf/cZU5fcgBBGekrrSn0I615xmrpOog5D7MYjYT+TM664AK4vQK+I2uD0EC7yV1ZIDwrSsb00QCsNbLFJXBCGbwGJRzWraepYsnrp6N62SMq9lqfXGVBCEaFB7rPunTPj4RD8C6jpU+x+LHfdGk2YL080Pl96pxsy1taP75wThFMR/Z9D9gHF1KZGTnyd16buyjGJe6V9V++hVLghBtHZ0H0qA8PeYZU0a4HmYfFgmk7w/SFuErJ+aChvt3rVM+GxuICEcAyeeIG0L8n1ZWYnvg69y2e2bLsl/POurl/WtCUJ9JtUVQbhcgV8x2DgmnV4nEnFU/bjESnlQFhlzqgii8rSKrWTSIZlM34MBOloiPuEo9xRA9zObd81uem69nVQryMjhK+H3PVm4ZrsDmSpBuOQkHmXmU3LppEj8HvoTZBOedke5SbpBuMRSqkmEK5m/glKlWRrFoNbL+tYEob7E6oogRLNlcWxqtZt3CRIHN5n/VBGE7ETFwMW5VOIrquafbW3xdyFCIvzBPhO3A2B1LpUQeSUmHolyMhAZScRzZQ5kqgRhLc6u3rcjb95ZdrqexAB1QQhCKisPeLOzSHBs98vLboeqoTYmiSBkVkRBwsfIthSZTwQDT0ZR6Eql1v9N9k49rG9NEDOYIFxOmKJHKhFOK3rulmuBrWQ+Y4dnMjdtdb40VQRhXdMNXA+ixbY2bAXxsdmBpHAy83xcsBpiGEfnUuv67S+7LGbfXBWlk1/FhucI7BaEIESd7Z3dJzPjKrsTHYEunxXdck4I4sQy3IIQxHjbJiNYH63JDvSJbInlBhFTo4OQiVfDMOuU1Ssg9FBWd0VH8/NWM/gsx+SesvWtCcJvZ9n+e93dIKwF2r70bWxEb6/MqsXSXAxu3RU5hJtM80p7iIliWZHWstctTvtUEYRoi0wmbwX6MmiJV1wccZdvjcW7iegXZTkLJLkaSvhIw30TfzE7kPyux41F9p1RZlpu98QOShAu5Og5LurTurxkYIKQh/t+lZlW+nmfu4T7liZZkm5Uk3CDkPs+BA5AKIVf6t/go6ye7vWtCUJ9JdUlQYjme2U+25YS8T4CXTY629zg9F4UN4Y5c17er2Dlnka3LMsXfDbFqSQIjxvTi2A+Dyauc4ZfFvmkI9Gxi5kgTmE2KxJ43j5c8hwUGPiJOTr2FWfoC7HpD+fpc8Vw4qEkDLJPzdaO3haCKRIY7Vr6u9fNTn1a10YQ1gYyHkixImEQMS4v5JsulCUMoohxGoO/7cjCJzLOuZJwUPKqBgOp70NIybhc4jr5Kr+nc31rglCfRXVLEOM3iXgbG+SdO9lK0Vgy0+NmAHt45HTOg/iC+XvgMo8EOZhKghD9dNORlG47INwPpj+O/988ACAR38hODOIHkbLzc7mB5OVew++xMFXTaErzVQS9QRTbKMlnYclgAulh/KZ7lZtwGClHxUXvitGhXVYFSDnqm+3Or7/23+Uxv9QisKp+R2Id5amsnrjRTtP61gShOrKWFV99Px5ioqANf9pkXjmYTt7tpwCeaoIokcSsYboCsG49QZ9AiXdcxCC+3/QSfVVJEHC51YRiuVbqUJUEIV6n9o6esyS3Al+sAAjC/d7Y0Nwve+Ujr6FtKm2A1PfBw9JIqVJHIZnlF6BmkTcd61sThPoo1z1BiK6IBB3/2IIPmyZdss1G/WCPG4Ks5y8R8L3CWNNqp1jADabpIIhSP596hgRBXArgrSrDKCy8mPj0oHmKPcRUss/m3UQrpcLVEoS1WKXiHO4fnY0lQQOgyRpf6ybc0hnfz2CLvFtV5p4Ykwgb/5FOr/u93xjW2rbA9cM/sJ5fnc7fPTy0fcOAT8f61gShPsIzgiDs3bEUbtH8MSD6GEAHAPyWMpmvJXLC4wT6HTGSw8O7bPY6wUk3lI7uYwnYnmg8oJmjSiwmryESepTo7BdbIjBOZzJjAM236VJeBfgJBt1mgn6+KdX3iN+NyOtbwrs5OqvpJAb3gOg9YOxWLD8E5oe3ScB+lY9EfuYXwrgWghD9bZrz0k8IOM3W1gKDv5BLJS9Tn87ykiFtwrSwo+dfo8ynMuEIAO+2zTuRCOovxLgzT7Q2yJiE1DZpx130A1Lfn1oxbuuIHwnQLSUHw/H6/MOAO787FetbE4T6aM84glDvmi6pEdAIaAQ0ArUgoAmiFvT0uxoBjYBGoIER0ATRwIOru6YR0AhoBGpBQBNELejpdzUCGgGNQAMjoAmigQdXd00joBHQCNSCgCaIWtDT72oENAIagQZGQBNEAw+u7ppGQCOgEagFAU0QtaCn39UIaAQ0Ag2MgCaIBh5c3TWNgEZAI1ALApogakFPv6sR0AhoBBoYAU0QDTy4umsaAY2ARqAWBDRB1IKeflcjoBHQCDQwApogGnhwddc0AhoBjUAtCGiCqAU9/a5GQCOgEWhgBDRBNPDg6q5pBDQCGoFaENAEUQt6+l2NgEZAI9DACGiCaODB1V3TCGgENAK1IKAJohb09LsaAY2ARqCBEdAE0cCDq7umEdAIaARqQUATRC3o6Xc1AhoBjUADI6AJooEHV3dNI6AR0AjUgsCMI4jOzqV75jk6AOCdto4/RGb+6Ezmxr/XAkZrR/exBNxqq+OvUcp3Dgzc+Ewt9U7Hu11d8TeMjNEtIHy09H0GjsulEr/ya08sFn+PadCnYeJIEPYGECm+swXAUwBdlE313eZXz2T+3tYZXwgm0ZfdGfgfwxw7PJO5aWvpm1b/83QDgCMADBFhRWYgsX4y26Tr1gg0GgKNQhAg0OWzolvO6e/vz1c7SDOBIOLxeOTJp2kZCB/IpRJfdutrNQSxYMEZTc1zXjqfga8CiLrUXWCmY3PpvjuqxbnW9xYcGt+leZiSDBwGoECElZmBxLXOemOx3k6TTEFkbwIQyiGi1rbr9+sHgba2+BwYOB2E0WwqeUX9tKx+WtIwBCFOiczcm0sn7TeAQEjXOUFQa0fvQsD8AQGtIKzNDiRWhkkQrbHuTxJhje3GUFE9Ac/D5MMymeT9gcANrzC1xeLng+hbVpWMe5ubeHF/f/Kfzk90dXVFR8d2v5wJHx8vil+MDc09c/PmK8bCa46uaaYhIA5Z/3jWOIbZ/DZA/8aE83MDif+caf2YivY2EkEIvB40o/mjBvtvfKoa8OqZIFo7e/6DmL8/sXmHTBALupa/eVY+fw9A+zuwEzeypwHKAyxuFf80xyIfHRy8Xoibpvxp7ehtIZji9rKrOBSYzIsH08m73BoSiy17n0mRDQD2AjDKzKfk0sm+KW+4/mDdINDW2X05GJ8sNUgThPvQNBpBbBOP4wfZgcRnxw+MwZ76JojuLxDjOxM9CpkgWjriCwyQ2GjFxjt+OGdcy/mmswcHf/lKMCQnp7RDrwAi6ht5fZcVPjcCau3o/joBFxZbVdMhYnJ6pmudSgTaOruvAuNUTRD+qDceQSicKt1gaSSC8B/68hLOvjPwZBSFrlRq/d+C1jVZ5ds7u09mxlXFW9QrZPKRmUwy6/e9trb4uxChewDsYxEfcHEulfhKNYcIv2/p3+sfAU0Q6mPUiAQhNoAKqxYVSDRBlFlw/c7g4WPT6VtfVcFussu0tx+/u2k0bSDggPFv0XXN0S2nqholtHd0X1RUvouXnza4cHg6vf5Pk91uXX/9IaAJQn1MGoUghBnqnmXdrkLUpAnCRhAeyl/16RVeSYcCfRTgxdlU8jeqX2hv73k/GyxuEbuP80v1okjVb+py9YmAJgj1cWkIgiDgXAbOBLCfreuvGGwck06vEz4TSo8miPokiMrbA2dGZ+PozXcnX1YaWADComkkP28twCcW39G3CFXwGqycJgj1AW0IghAOYAZhFjOuATCn1H0Gcubo2DGbNt30ggokYRDEwoXH7xZpii4B4d9B9B4wdit+W1gD/Z2YBgowr8wP7zroZ27pnMiefXCc+P38IFwcDr1hIqwtEH8tYlry/H0ncK7CTNCyQY9gPUBHTdTDdHIu3fdLZyPaO3t6mVn4OZQc9lZlU4kfqYypvUxrLH4cEd1YqoeAr2VSiYuC1hO0vOW78kzkICJzJdjy3Xibzc9kCwEPgHD1rAjfLDPXtX+vvT3exgaJm5Pw7RDPaybzkYPpZCpIuzo6lr0jj0g/wXKEFM8oAx/LpRJ3e9UzbihgHAWYpwH0IQDznPPbNPhne+/BuWQyWVBpU8VcdMzlgxf17h0x+UwCLwXw9uIaF3U/C2AjE37k9T3ZWvBsl48BSEvL8nmRpkIPg3ska/xpAIMAJZuj5h1+46mCz3SWaRiCGBua+5umOS/9hIDT7IAGUUjWQhDjk9j8GgErPJzM7E37x7bFfd78PTnhtpDqkSCyA4nTWju6ryzDuQpxlMRq6rGCwYds2ph8zA6ShEi2kkmHZDJ9DwZdOG1t8bciSv1gvKv47oPmWOTQSTTZpfZF8Y+wiR8Je3uF9r4K4m8gjzXZbHJIVl44Cc4axu0AtZd+J8Y3M+nElxTqnyjSGus5icgi3eLjfSuzxiGKVWASzplv9P8WP0wGzs5sTP7Wzx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BvTfp2svbKrnkgfNoejh0YwMe/F7nqyOeWTG+XchBpLFbU3NpKNv+mpqPfbdNsZc3/ma3jHp1WUrkFH9bvpgShFbH5vHHp2qduK0R0NwHrADxBRN2cte9zEmWUBKE/eJR5c2lI7IY4dYPxgUKftG9IWlGXj8jca/zcN7pKbTbc5c9EgnBiQE1NS3exkTuMiNp55Gbh9kCrGxOl3vgTZPmCME5zY07zVVh/N7S03QrGKcXyTE7cKq0JQeiUEUzLdwNY+ogMrWtmzQOh742lZJPwuEE1Nx+/Qw7DDzpVO5lwQaan66ogG6h289ecLEtPd/lalDfhDsum2zZv3n6NgYpokKZFntaUIHRvlFF4H4iaIDS3bH8j3abE0USkHHmOSCoYj9bW8CK34aPmkJFjpqMyqc4HgwziiLpyfLXD75yRSLZcHVUThLqqwqJHGHjP6MZE+Gqmp+uKcpVX8rtO1k6Mn/alulSQkGq/PGGwZe/PrB7USKlo+hBG+DYVJddxj4ml62gJQRieREwIolptDmd7NfJrbzVUt5GRz+mzBDuPtB7vNQ8B9GKQCcTgGhrR5hqNeUIaoz6NjNhdzQAIT8Km27iGHsp0d6h2GN9kgrS5mrQjltZvftBG7GgQn1Bwgz8qqtWJmDQbt+dbRTVti5ogPG7oXsoGJTdUL8UEzVpQh6CVgFWiIOKHDzNvQ4Sjna6OKjHqC/0GUc2bQCUTIqgWUyV1FPMoVbJX1mIfMH0JjDaNXvYQM5+cSSU7q6nHmVcjrzUSE6kyoiQI0xOjCQ6axexjp1Di40srZtI8oHueoHTvZibtNkrj8R7mEyNFV+w6EFYwW7fusUvuiSBWykZt9E9E81uX7Tgrl30/29jbory7kU8xoIxTdTYQo6XpCMK9Xgn4K2w+qK8v+WQIbR0tImqCUBVpNOu03pw1ChaeYuKAxn6BIAvjLbjqG4ROhqZ7RArUM5/EhYV2rzNJFFdWdxPy7gFs++ZSYyd/Fw5B+116CjbXCJvCBOFpy6KZX1oxU6mmiff7yEQQhJoHPvYgftNkPQH/lhuuudYwfknQKZf3wVQzZ/2hxLgQhP00ByGjMnUEodkAfSO9GVWkSTQeBNFQ+q6gFTNpFCA8D3nTniDUWLmNQcJ6INFNFnddUZ1IdHV7GFYZa6WYTP4ZShC+GJZoJmlERxpNF08fXRNFEIXxp7qWxEeI6UIClBGYyZuXyurrnsRkbmnSUOPCxGfZxvUBY7XnrcxB+RvFqFX0dCcID9cbY8RMGpsPXy3EmUEQ7geZiHwx6R4XgdKTotKc2Jx9W0WjWwZYc5RpOhP+NYx3Ea1b8/Iqb8brd4YShK9tQIlqrOvxWTMvfK2Og4i4jAeugoR5R4prrQ9Sjo9hQjsB/1DG39YYVxMVVOnMQg3NbV/c4mH0B2VuDEUPs2tArNyv/LY2tu1TudzGHdzq5to3CJcn06gOdONxg1DglWjWud4INe9bf85ZfICXZfp43bAqnStVi5hUxWFGbvPriEbtUTmmKzkpelivGsvy/dqge6wNQ9ZXrHOyEkSYj9Rue4pym4bmgTDHzIuL7gRKH/r8VRA1ihUVaY5Uuui88uXnrb15X7B9EhiLPVSwy1phm7SrvnlpHcFWmjLOMLp59zME6xbYWD1rlv2Cl7tx0zep6fJIXcRUcxgZc7gpcQVURqXXHdSs3FowGdsw04RCEB5Xr40WW0emUh3KqK3qr+A3aDmIFjkK8zx5lvpA8XaSFaRxOtXGmUAQWg+pFWqP1be0jXHDzsAfeTi20M8flsY3/6jdgsaBo+8mqlW9NNT4CjJXqkmbV5B4DaeC6N+dJ/ww3vc8XF9sAuj0dG+n8rNVVoPKmCBK1S8R9M1QvUMNZWkFAx/aIhX4Hxv4Qxy5a5xxGcbrBqHGtMSwrTB3NGukrCGp/rCy9fBTzRwKI29YBAGtOT24e2g2jikXJMakI40tbScy41bTiHI6F+QmbifKtUWnIhl0wvvVMVlvEPmFUeLXPlpDOSdOJbfUgphpqDY+mA/itNUFfFnDQv0Ns7w7E/e4FYhG+UvaobhxWTbf4tTQyZ/UOXc4ETUwsI/yyprp7VIxJ0w+pS75XQIudiSu+pFXO4eByzK9XV83IYf8XND5RNM4zQzDfsbEIHFcCcLteqMgZtpsW3uM9SJc3n+Y9mYe0JCwMB4ftS1+gEaCgD1JwP8S8/WpVPIlk4nmlSY0ghi5RbRdCcY/j62selsBDze4vnJrbbAP5VM+bh1SdPlbCXAaZ3VlN6Qg9UxmgtC52mCmZUFCrlbhmsXtuiCvxsrMm13RuoxEiRrnhoFvvJpDS4lqbTV2LWreRCGj1unem0Tbc85jnXNIL1cbGkNBX4t493oxcdw4ngShcQiZ3wOQw77OIFU6mxjNXqCLORHU7Ys6SHx7Czlc6ig/lH0pTIJAwZpPyTWdbooVd9xRG7e/WEn4xMKmpCI4OV1imDiz0oGmDkj9HI8trYQk9EQVbuS8yUwQETnrM3YS536DUgtQLQhHtC4jv1UqT1PTkn+wKaa8Am81cisEWjK58XrM9f/MDQ0f7PSiqdmMAxFR2GFzC6RzIAFbYxTknTqaW+96Gf55EoQuXr2hsz69j7FSd/TjSRAKQzdBMvFpxHS4w9WNsXv2uqbEQRblY0444mSYH6z1rtR5RW182xPKeZwtd3gNlSDywLUkFoBJ+Z5x+TjiJ2zCKaZh8RRLU4zOLXhgHRNgpBgxrdxC9iYsqFCJ/4IcLzdxlVGQB6v4wSrKmfNRL9BiLzcY+cXrdrVh6IhwBHuXqw1DubqJJXWx7Tp330x4YLiWj6/E3TeBbpgVX3uuiZM493Wcgf8iZhtEn8q3z9A5YaEvXjfesoeZ/Ny06FqXe2at51yPoFXPkJ09vK9vha/ldr3G5bfhqdR3qmm9HwC3DA/M/UI5lx+KHDhG9xDwCXclXqJWL3ffRDipr6drjE2Ts8zCursIRJc5RMtayYGbIMqp2gdx960Ds9T1Bvds8QasDhsjTkSDeEBQ7tMtuN9XcwRcNjgw93K/MWloSPwdYqQMdVXwr+I3YDMv6k8lHzHZc/zShE4QqrLGlsQRzKQiRzk3U/WTilS1CuCra+Podd8o1IR49VVrLyZuA+XjBqgoVu5vFXLc7o5P69XJwg1E+UTR6Zvn/eEw497heOzJNd3LVSCe/ANda+sxc4eGane3LT6RgBMB7Oaqw+QWE3h8JjtBeAcMYs8Yzd5BZmC0UTpB9PBrNJIkoOzW+wDBTzBi52R6O1QMjTEPtl7Gbn6HFv37GT9rM8593654VGMpXbBPsH7iCgajdY0edJJ5RloEbuThmkt0BnnKvXmsNn42mC70st3wU9bQ3djyYTKZv11bg+vce8FIfTX/Bs6vPUcwK33AII2vJN/YHtUShAfpOYcikLaZR0AlNf1WWowLU6nk/7jG2ceGxfz2UW7uREIQeZIwi62qNCfUaV4BoeI0KAb2itegIqrdPjvO5wYVVQV0c1AOszzRBYjDa1LeaJrJThAjY7t4T7biD2jjK5uHHPUNZOQFmtYOZSRxWY0RXZk+YR7HhE/Nh3e18RkQ9ioth56HZR+TXp38vbYO/QmxQGp4kxj/yaB8+FsC782EfaMOJ6knrXyT1Kb9LMj6z3x4XhU2llEPwh4uF/mbQFjr8FaqRH2+Pth8Qo6O+KJiUvjFGPxpnU2IHwnr49XnAX0TTBsYnI2x9bmiVmW1BJFfByXu3kdH31hsOubw4x2SVSV7hYFeR/jb/bVq0IR0HNklPT0rVMCzqr/ICEK1rK7uhO1i8eHLmHBWGQOgch1RJHLe7rtwV6V+aepaln3c4px6y3C9j5SruuT3TWB8e2jz3GvKXccDlzwFREzFPhWC3d8NUEvwfvKzsGLHp1d3/C5oXq1MOl9IeY0Rr7oKsY3vqSBQvNqBnodFx5Xriy7yV4C+Z5W9z+DA3O+FNeeMIy1qG8nPkm2dbMe4mRijYVaZcWcm1XWynyaUj3ShDBxlXaR7iAy3Fut0XhcGQWhcbxQq07uvNxnvyvHJr4F+O547rhiz26S+cmkiJYhi5XkRA+hyIigbBtOIbiq7Cuz9ddO3gnKdzfucmf3WYiJ8M6BrgZGTFejurEXfMg10Uq49ut+nwg2i2O4R2xQ6GwQV03quQX9VlL7vz4rz1UFvgc6ydRo0XsFYDNqUT6IOM1Qz/B0ClFfgMW9eHmXk4wXnsjWXmvpIUnhxjL5BgIr3bVKHqvppsvi8vtXJ35iqoJr2OR/Sc/b680BQ6q0mLj/+okRCsHGzersr0WozfANSfs1iOfsqIhxjELhrE4i/gyyuK/deWI6Ene83YRCEh/2XsaKE1zjl/b4x/4CZlxjul8YYmc6NYrpxIYhiZWpQNmfpsxbTYpu4kYBdHBNTvU+8QcAzNvhXiMdWROj2mOpbl+5Jw3wIE6tYrvu62lIgBH6F2ErZxCtmx/k31WxqpgMzlQjCOa6DWeswgFWM4kYAOxcWfn5MAfQBlKyN2w+GgaFG3mysMVJuHPL+tgbpKDBOVnYLjr6orGu3xKH+Exj/kRvO/rzSmL+FmNZFvOpcotVNAL8EWKtg2TfvPg/PVHprLtfX4u9K3h+fVXMCg5Uixocc4i2lU/8iMfWAsXxwcPvfOG8wmrCtOSKc2tfTdadJ3flwornc50B0BEZi2hdJSmHwewJ1ZoeG7wqC84hyi3Uas63K/bCLiEdVoEMiCKWG7NYI83WtYYJLMY3CN1aTa8+PC0g9fhe96RbWFT8FWLeEta50bRtXgggCjqQVBAQBQUAQmFgEhCAmFn+pXRAQBASBSYuAEMSkHRppmCAgCAgCE4uAEMTE4i+1CwKCgCAwaREQgpi0QyMNEwQEAUFgYhEQgphY/KV2QUAQEAQmLQJCEJN2aKRhgoAgIAhMLAJCEBOLv9QuCAgCgsCkRUAIYtIOjTRMEBAEBIGJRUAIYmLxl9oFAUFAEJi0CAhBTNqhkYYJAoKAIDCxCAhBTCz+UrsgIAgIApMWASGISTs00jBBQBAQBCYWASGIicVfahcEBAFBYNIiIAQxaYdGGiYICAKCwMQiIAQxsfhL7YKAICAITFoEhCAm7dBIwwQBQUAQmFgEhCAmFn+pXRAQBASBSYuAEMSkHRppmCAgCAgCE4uAEMTE4i+1CwKCgCAwaREQgpi0QyMNEwQEAUFgYhEQgphY/KX2ChFobU28a3CY7gNh/2IRDByd6e36RYVFzohs9S1tXybG90Y7S7gt3dN16ozovHQyMAJCEIEhkwyTAQEhiMpGYSoQRF1LYp+YTefnsrFL+/uXr62sp5IrDASEIMJAUcoYdwSEICqDfDITREvL4l1yXPM1Bn8ewItxyrb09Kx4vbKeSq4wEBCCCANFKWPcERCCqAzyyUoQzc3tn8iBHwIwr9CzPwlBVDbGYeYSgggTTSlr3BAQgqgM6slKEHXNifkW6BEAOwhBVDa2UeQSgogCVSkzcgSEICqDWAiiMtxmai4hiJk68lO830IQlQ2gEERluM3UXEIQM3Xkp3i/hSAqG0AhiMpwm6m5hCBm6shP8X4LQVQ2gEIQleE2U3MJQRiM/Pz5Z9TU1m74LAjLmLgFwJ4A4gByAN4A0MfAHcMDc3+1Zs1NwwZFjklSLJ8tVgZLCwHsDCBWSLSWgKdAuH2wln+xZlVyg0n5mg10VCtE6ZlbeWMpOgDAHBDeBPNjDLqhXB8WLDh2x1hN/BgQ/hFEHwJjx0J7BgC8ANDDNtk39fck/wCATdpaSZpyBLFgYWLvmE1fAuMIEPYo4LkJ4N8TqDM7NHzXY4/97M1K6lZ56uqWzbPi2SNBdASA+QB2LcyJYpFrAf4TA/fmrFjy8dUdL1daV5jzrxKCyGOdtX60pT8nOftAjJ+yzeem00k19oG/+ua2owi43zDjWzb4oP7e5Bq/9D7zM6tUZ4mpJwf75uzmHforWauGbZ02yYQgfIYykUjEXnmd2gD8AMBuBqP+KkBnpns7f2myOTY0JObAwukc9GxmAAAgAElEQVQg+jqA9xqUP8DAT3i45mv9/Xdt9EuvIwjk+DOI0TGF/szR5mc6M53qvNH9W13dCdvF4sOXMeEs10aoLwbIMPHp/T3JZwz6FTiJF0FQjlfBsr4F4vPLtHMAhBtrY/y17u7k30wbMEKudCWAAx0kXi57jhk/z8Ws84MQRRTzLyhBKHKaNWfDdQCfESY5qLLCJIj9Fi7dI2bb3yJAkZg6vJX7XgVw0e67cFcymVQHPfk0CAhBeEyLhobE3yFGdwE4NODMyRFw2eDA3Mv9Tij7tSZ2rsnS7QwcFLB8lfxptqgts7pTndK1n44gCLiWgX/N3xr0359zFh/w2Orkn50/Nza278cWOgB+f8C2qpPlRenerh+ZEGaQsnUEQeCTbaKlxDjcvCzut+O54/q7V7xSJg81NLd90Zdcy1f6msXWolSq44lySaOaf0EIwoscALqjNm5/MQix6vobFkE0LkzszzbdUbjFlYPW+XuOgdtnx/ncavsSpNKplFYIQjNa8w9MbF+7mZLazTsvjsFqgP7C4O0IaAawu6uYHIO/nOlNqpNmydfYuHhPtuIPANin5Eez8lU2381Gs4EOARgE8O5CnesYeJRAbwN2PUAfBtEN6Z7Oc52beUNLYgGYlH+jnVxtzQL8HIj6wTQI8HtBWOgQORWT50B8Sbon+cMwSUJHEACU1e0ujnaqNq4BrP8CcS1sfAaEvdyYE/DI4GxO+InvGlvaljBDbUJuct0E4I8APVkQOcbA9r4g+rCWiBmP1tbwIr8NKcr5Z0oQebHWnPVfZeDSsTelcMhBjUHDwqWfgs1njoyH/R6AjgQwqzA+G5lxPxG9U/j/AMfp6kx3xwtjDi/e45IDQR10Ump+EnhvBuod83+0GCY8MFzLx5uKb6fSBl9tW4UgXAi2trbGh7LzrmWwEqU4Pn7WZpz7vl3xqPNKmhcDvEFHgXGTS0z0msW5g1Ope//bWcqIPJfuAXCIq+qnmXBmpqerz72RKrEGMd1MIxPc+T1tx7OH6U6/Hhuoypsj0DWcsy91yo7VFR1Wbvjx7qR6U8l/HkSWJcYN2eHhb7ll+AqLl17D/hZZP3bdNgaYeWkmlTSVN5ed1z79y/eRgRt5uOYSlyiOGhYu/SRs+3YAHx1TCeHqdE/XBToSU9jEbVtZ+X7EkectIpw7+M7cTt1NUYkPKWadxmB1YyuSsso+BPCidG/yV7pORj3/DAmCGloSF4Lpuy4xWtfQbD4jio20EkO5EYKxFY7Ow0uOCB0xZC9yu+lwiOyucYt0CXTDrPjac7u7u9VbhXwFBIQgXFOhsTHRwBapSbed46dVyHF7Op38P6+Zoz1pE13nPpHXN7WdSYTrgi68/HV/m/VXgKFk68UHbMBjY/PaQBm4ZXhg7hfKPdDlN6rhnW5gwuccfVYb/WmZVLLL7zagxGfxLJYD1FrMy0DGHho+spqH4RKidXlzLfxe9sZSEN90Ft4RisV6PoI2NLedDeTHrPhttNg6MpXq6Cm3kxTEHz9zzidiXNGX6vqqLm/k86+8N9dxJweFQ1CCKLzfLQfRIuf8NBFp1rUu3t3Kxu4BqM6Z12Ze1J9KKmtu+YQgtHOAGlrarwXzOY6N7Y+IW4e4r7a63CWnM2CMTF+JDmZtxgNbNH0aK9k489f+bTbcwcztjvq9byqlG+hGsvnQvr5kutwKaGxs/yhb/GvH6azsxusss6Eh8QHESOV/X3HjJqIT+3o6O8rVbfK79w2Cbhoa2P6ccgSoaR+gIfTW1lNnD2bfThbEHyNN06TzarMi2sHsTncDSIyOOePOTKrrZA3JRjr/VP1lbhBU35I4hZjUm5FTlBbZzaGISVCC0BEpA5dleruUwkdZ7Tnt+DPfBxvLKtXKMpm3Uy2N3CAcI9bQkNgNceoG4wOji5lwcaan6/smA1tQrVSb4t7FTZGZjsqkOh/ML87mtgMJUBpORTmrr7hBV6dm4wZr2qjfQLk/hprDenvvfqtcfxqb277JwDcqIbJiHncZAK+sjW+b6O6+dXO5+sv97kEQ2kd2r7JK24en7eHYgU4X0/mTaoz+kUfemvYlYHub+bj+VLK3XBuLv5dsyh7vEFHPv3IEoXtnGS/5fFCCqG9uu4YA9V5W/ErGrtz4aG6GRqq05cqdTr8LQThGU7OBryObDujr63zaZNDVaXFzdqc7CFA3hDVg/j3HrI6itlFjU9vlTPjK1rLMN+xiHt2JVLfxatVAvU+uY7qnzRuAKEdPhU2JZovy4rpt1d8YeDmOXGtv773Pm+Dpl0ZLEAFO9qpszab0ts18aJDN36QfpgQR9fzzI4iJJAePsfD05trcfPwOOQw/6BQR+YntvMaouXnJ+7OIdRPydjIjn4eat8k4T8c0QhBOgmhpO58YTs2j31q8+ahU6n6lqVLV9/GDT9r2Xe8M/sypGcXAtZnervOCFtzQ1P4FEP/Yka9kMVWzyWsWTs55EzJt74isN77acaMaYuCITG/XKtMyvNLpCZCWZFKdK0zL1m00TLgg09N1lWkZJumMCSLC+Vdsp07ExIw7CVAq3Y7HXu6JoWaRyW3TBINyaYLcIBobE5+ERY8w8J5CuRXNK734UCLsOcdKCMKBRkNL261gnDJ6mDA8cZeb/Or3+a3L3jMrm/01QB+v9rRS5zqZAyi5GntsoCdmUp1qI/D9NOUrUdhKwPprubzO35l5GyIc7XygZSajNpSrR9O/wOIB3W1MWQf3pbpUwJqqPjXeNdlcAwHLACj1za2aTF4ipgjnnw9BPAfOK2S41ZiNH+KrAqqQOQhBaG5ar7NFB/jZBXm1seRWb6CGHEZ/p0oZQhBbR4rqm9puJ8KJxT+FtVmo8lS0rCzHldbL348SUIUxlDWLyYwgDOsLaMAUaK7r3ksCFVBIrCGIP9vx7EIDg7cx1bkPBQgQo1mdQIeGNs6zrfjHLdAeTLwAjAVA3tbCyxhRydp0thCRzj9PgvAFn7uHZuOYKNRa3dUGJAi3i46KgwuZ3u4qmaPTIY8QhPeGo338rXTQIyYIJd8/OtPbpQza8l85X0V+/ZiiBFHRJlHf0vYVYlw+ikcZgii4dDiPAKVJ5jaQNJseGoKoRiRoVulIKo2mnTO7MkqrHaNGzXxJOpX8nolmUJB2TFqCACqaR9X0fTLnFYKYHgRR8rgqBGG27EpEDB4EEdQXlaN29X6ltMaK6r7aG8TEEwT352CdHGP7+y7bgnWwrEPTqzt+Z4ZoZakmzQ0CwRVHKuvx1MglBDFKEKX66iJiGp3Ek+5UNZ4iJg/DqtIVPuImRbmCyAD0W4splUp1vF7f0nYR5b3nFj7tDSLa+VesWn+D2OqPSrNRA+NgHzBpCELeIMbMayEIBxxT5ZHa/UhHwF9h80F9fUnlDyj/VXWDaGo/jIiVuCpvsa0rf6LPPxE+Uo+xclbGiTVz1t9IwGmuPq8HoYNtur/GGn5y551j67y8gprKuaOcfz4EscaOZ49xvN1QfXPbt2nEB1PxU95oz8mkupyac6FOgYAE4bYnqviR2m1Pofxy/W2b2mOfeviOt0Pt4BQtTAjCMXAl8mggsJprXn5PuAXMb4DoCeXYrza+7nZgr7jbIrfSG0q9Sx2SgT/ycGyh08CrGoLQqBHmmHlxmL6Uql0vmv4FVsXVaZa5taw8XF/8Cjk+wc/1irN/pgQR5fwr+hgy8cXU2HjsTrZV8zABn3D04yXk+IB0OvlctWOnyx+IIBa2f4TsvJV/0TFj4LFXbdCpnle6JqPAZDKUKQThJAjXyVl5Bw2qPldqDIdkbXzd8WqBTrihnKEWk1YlN6ARmoJVWX3bFj+w5TSqHKA9ScD/EvP1qVTypWonv9bdt4+PI119ms2/RBtMM55BN8oS7SQPLSbURzz/FAYmBJFP15Q4moiUW5RRbSxTP16VjG0QghBDuUoQriyPEIQDN42rDPXrOenerutN4NX5WnJaZupcbTDTsiDGXToZsamrDbemk0+fSnwCAQi+MZaKKgITrlcbPVyJ9A3NxuGGapmaPvKY/KZW635zIx95rianDAO3eo/1kHNHPf+CEISHaG2ImU/OpJLK0WGoXxCCyPej1NXGH7KWdUiQgEya95jAtjShgjAJCxOCcAzKyIYw7zaAjy/+WYlvjJ31NbUvJuLlDl9LY1x1ROSsT+sOpBoRk+p7XVPiIIvovrH6/GaO8FR+vStmXlEb3/aECH0xGcvK65uX1hFs5SNrB8cUGHMY0FnaBpRR6+T5XnYQiHr+BSGI/BiWOlxUf/Z0MV/N/haUICJx1gd+EDksEWd9W0dSCMI1q3UTzySgTGExqQ11NAiQkmfOqll3ltPHvM7dt4lDNC93315+7KslCA93ykbR8jzcaQ+E6U7ZJx6EUss8Nr26Q8XV0H66sQKgPYE2NrX9xOXy/C2GdVimt6Pfb0MciROCC8B0hSYEpufbVuTzr7y77zHd0s3XKGInuAminN8uj/mZZfDFmd6kcpXi6dHVy9132DFLqiHMyZJXCKJ0JKihpe1KMP557E/8hE3x0/t7lv/eOflGgpCosKF0syvkYcCAQfwsWTi7b3XyN+7J3dSU+FCO6AYCPutq7jNkZw/v61vxorsb1RKE9y1A/cIrLcaFqVTyf1z1UuPCxGfZxvX5CHVjPvPbh8niKBMwaBOYzx/avMPtTrffPmPlKTppbGlfysx3uqKqPU+W/XndWKk6Xn6D6sH4oSbAU7FrfmrDkc4/0zeIYkMLt96fO2N7AAiV7PM3G83DM5gv3X1X/MBLO8wrYJBX/O/82LxmLSLify8NTxru/DSZw1MhjRCEZpR8Qz4CrzDQS6CNPmE2B4hwUl9P1726SRBSyNF1ID4q3ZN8TFdHGAShyvUJtal+HsWiEH51f41PH6Unm44ju8Qd4auaBaLpnwpCr2J0H+goVxmprXKEh9W1T4WmvGronblf0cWQWLDg2B2tWTUrPTb7tQD6VPkjddofBehjJWEtCcrfkfJ1VAxC5esWJMr5F5QgVK+ampa22GSvHONTK+QAUFrFCFV53raENjA4G2Prc+4gTT7z0zjkqImEoJq5OpXzCkF4jN7IyYlUGNG2gAM8wMRfzPQkbzO45t4NUEvA8lWxz8KKHe9n3RoWQYyQROII5nxQeKe83rDZW42wDDMYJdP0709k0zK27H93RQrzKy9LwLcGB+Z+zy/AUFPT0k/bZCvx4a5GjduaKAumq7iGfoSs/RABHyz8tJ5sOrivr/Nxr/Kimn+VEITapnW36iABegxw87g5bc3p5eixoP2l1tt7DepxJsltEQmrYEhnGSo2BCx+6icXgvAZQ78YtrpsKqwmE5/e35N8xmRqjMhR6WwQVPjJuQZ5NhHw/Vlxvtov6L0qJ0yCUOUpH0Q1zD9g5iUambqu6ZtA/B1kcV0Uj346gohTtiWbjQ1S3PoRMx/nCuvqaqO3SE/XmQXN7R+0wLf5iI3cG88qm/gCNRd0j90mTgujmH8VEgQKrtvVo74zlrfRe4zBvM4n0YWqdeb1i/kQfH7ys0S4sK8n+UDUfqZM+z8Z0wlBGIxKQeXvUAJOUgdqADsXNp8cGC8TqNu2+Kd77MwZL3mpXzX5zS5rHQawCks5tnzgjYIYI1kbtx8sRwzFesImiGK5Sm0zVpNrZ6iwp6Q8084r/KZOY28A/BRg3RKkrQZDUJLEiyAKYiyqb166gGCrWBtKrDTSxry4gh9j0A3DA3N/VS4sqbvS4vuCZdPnmFjd/PYcJcuRsv+HgXtzVizpVrd0Ry8LEqM7zPlXKUEoLOqbEu1EdLtDS0/9+aHaOB9nOi/LjbU6NFHMOo3Z/hwo/47l9Io7alPkVc6IM8VcgoAlIPoQGDsW0g4Ayg0KPcyg5XvsknuikrVarv3T7XchiOk2otIfQUAQEARCQkAIIiQgpRhBQBAQBKYbAkIQ021EpT+CgCAgCISEgBBESEBKMYKAICAITDcEhCCm24hKfwQBQUAQCAkBIYiQgJRiBAFBQBCYbggIQUy3EZX+CAKCgCAQEgJCECEBKcUIAoKAIDDdEBCCmG4jKv0RBAQBQSAkBIQgQgJSihEEBAFBYLohIAQx3UZU+iMICAKCQEgICEGEBKQUIwgIAoLAdENACGK6jaj0RxAQBASBkBAQgggJSClGEBAEBIHphoAQxHQbUemPICAICAIhISAEERKQUowgIAgIAtMNASGI6Tai0h9BQBAQBEJCQAgiJCClGEFAEBAEphsCQhDTbUSlP4KAICAIhISAEERIQEoxgoAgIAhMNwSEIKbbiEp/BAFBQBAICQEhiJCAlGIEAUFAEJhuCAhBTLcRlf4IAoKAIBASAkIQIQEpxQgCgoAgMN0QEIKYbiMq/REEBAFBICQEhCBCAnIyFNPY3PZNBr4xti10d2187Snd3d3ZqNu4YMGxO8Zraw5jxtEAPg1gZwBzCvWq+l8DsAbMv7Sz8ZX9/cvXBm1TS8viXbIc7wHw90HzFtLnALwB8HqAehn45ew4/6a7O/k30/LqmhPzLdAjAHYo5mHg6Exv1y9MywgrXSKRiL30Oj4ZY1rMhEMA7A5g3mj5hDfBeIFAvyVGcvPm7desWXPTcLX1z59/Rk3NnPWHEvgsgPZ11DkA4AWAHrbJvqm/J/kHAFxtfZJ/YhAQgpgY3EOvta5u2TyrJrcKwEddha8jmw7o6+t8OvRKAagN6tW1+Ixt0+UE7AcgZliP2qhX2cQX9PcknzHMgxAIQlfVAAM/4eGar/X337WxXFsmA0EoMrZm1VxEwBcAzC3XZsfvfwHzt2Hj5nQ6qTbzoB/VNyXaiOjfAby3XGYGMkx8epAxLlem/D5+CAhBjB/WkdbU0Jw4FKD7AMxyV0TAt/p6u74ZdgPqWhL7ENPNBNRXUXYWTFfBtr9hsmFFRBCF5tPzsOi49OqO3/n1ZyIJoqEhMQdxnAOmrwF4d+W487NkWyf39XU+blqGujXM2mb9FWCcH+AgoIpXRHRRurfrR3KbMEV7cqQTgpgc41BVK1pbW+OD2Xm3AXx8oSAlQrAci/hpezh2YCUiHY+GUUNz+0kAX1dmk1oL0NsjZfC2Y0QfpQX/Cjk+IZ1O/p8fGNESRL7mZ8jOHt7Xt+JFr3ZMFEHs15rYuSZLtzNwkA9GajN+A6At0kZW69sp5nNn2wTQ6eneznsMNm5qaEp8E0Rf1ZDDKwz0EmgjwO8FYSEYO7oqy4H4knRP8ocGdVW1HiRzeAgIQYSH5YSV1Ny85P1ZxLoJ2KOwGf965F86oNCoHBGd2NfT2RFCI6mhJXEhmL6r2SjWg3ArE920xzz7j8lkUomRRr/W1lNnDw9v3s8mW+VVt44x4igCHhmczYk1q5IbvNqpJQjCbemerlMN+0bzW5ftOMvmD8K2L9ryJnJUSTuIOgff2f4kL1n9RBBEY+PiPdmKPwBgH/fGy8DjBLpyaLb9sAY7ampauguT/Y8MfEkjjhogwkl9PV33+uFX35Q4mojU/Cm+Kan59TxZ9uf7Vid/49z0ldjx5desRUSsxFC7OspdB8s6tNwNzXAcJdk4ICAEMQ4gR11FQ3Pb2QDUaX6EFhhX2BY2EON7W+sO57G6saVtCTPuGLtRIMfAjTxcc4mJDF81sb4pcRQR3ep86B1pPK5O93Rd4HXKDIEgnMNRlKff4urPgM28qD+VVA/RJd94E8T8AxPb126mZOnNQb9Be823hobE3yFGNwI4zpXmNYtzB6dS9/63Lq+qf9ZmPLDl4bnR8XvZm1ZDS2IBmNTD/U6j+YiuS/d0niu3iKh3hXDKF4IIB8cJKyUvk47hXoAOKzQix8xKo+VVl6ZN1Y/VDQuXfgq2/asxCx4YYOIvZnqStwVd9NoNBNhosXVkKtWhNJVKvpAJIk9JuhsRA7dkertO1/VpPAlCiQ+HsvOu5by2kPPj7mwcyx7vTr4RZPLl3xHmbLgO4DPGMKXPrUnzvuVLoM5y3YcXEJ5DllvT6eSrQdotaScGASGIicE9tFobGxMNbJHatLdThTLwchy51njcWjc4TPeBsH+xsmoeq/NEZGE5iBY5Gp8j0Ll9vZ03BCWHYhmNLW0nMkPdJLaKm5jvg41lukfrCAgCeg0wfmooHj9gTffyv7oHazwJoq4pcZBFeeUDh2gHa+x49pj+7hWvVDKRChpQK13KBV6bPtU3tylFhNO21sUPIoclJkoF9QvbP0I2K5HnLoX8b9vMh/ankr2VtF3yjC8CQhDji3fotTU2tV3OhK84Fu/K2vi2ie7uWzfXt7R9eayYCRU/Vuu0pNQpe3hg7heq0atvbU28y01kADaSzYf29SXTbsCiIAhVR31z2zUEKNFH8XvLBh/U35tcM1EEobkdqqa8xbAOy/R29Fczmeqb2hcT8fKxWm+lYsjm5uN3yGH4QYDqRutjOjOd6lSiqrKfbrwmymakbGMlQQkCQhBTeFJoT76OxdvY2P5RtvKnt6IMuKLHao2WlEKtapHV1ltE+1JmvtN5i/C67URGEKVk6nnSHa8bhPt2mMcrJBm+x7vCn3MWH/DY6uSfi2Mzotq6cSHs3EIiamDQ39tsn2J6AyhVoECOmY7KpDofnMJLb8Y0XQhiCg91QbNkhWNjHbNp60+gPHrDMO26RkygsiZr4+uOD8NCe4TosvcpNUlmupcYq3bbzX7BrQWlKh1HglDiOq119HgRhOZWE6p4prG5/YtMfD6YfsnglbPjnAliUW4yfzQ3z9fZogMyqzuVhbV8kxwBIYhJPkBezdOf6ks3/4am9i+A+MeOcgKf/Oub2k8gyp/wt0oZmE7MpDrvGm/4xpEgJlTEpBXtgPtjqDmst/fut8Yb90rqK9xSfg5Qq2PieL4vVVKH5IkWASGIaPGNrHTdqZ41m7bmio+gj9WNTW0/YcLnip0h4K+w+aC+vuSTkXXQo+CICKLkIbb42N/be+/z7qaMxw2isTHxSVj0CAPvGc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"/></switch></g></g></g></g></g></g></svg> \ No newline at end of file
diff --git a/Documentation/arch/x86/sgx.rst b/Documentation/arch/x86/sgx.rst
index 2bcbffacbed5..d90796adc2ec 100644
--- a/Documentation/arch/x86/sgx.rst
+++ b/Documentation/arch/x86/sgx.rst
@@ -245,7 +245,7 @@ SGX will likely become unusable because the memory available to SGX is
limited. However, while this may be fatal to SGX, the rest of the kernel
is unlikely to be impacted and should continue to work.
-As a result, when this happpens, user should stop running any new
+As a result, when this happens, user should stop running any new
SGX workloads, (or just any new workloads), and migrate all valuable
workloads. Although a machine reboot can recover all EPC memory, the bug
should be reported to Linux developers.
diff --git a/Documentation/arch/x86/shstk.rst b/Documentation/arch/x86/shstk.rst
new file mode 100644
index 000000000000..60260e809baf
--- /dev/null
+++ b/Documentation/arch/x86/shstk.rst
@@ -0,0 +1,179 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+======================================================
+Control-flow Enforcement Technology (CET) Shadow Stack
+======================================================
+
+CET Background
+==============
+
+Control-flow Enforcement Technology (CET) covers several related x86 processor
+features that provide protection against control flow hijacking attacks. CET
+can protect both applications and the kernel.
+
+CET introduces shadow stack and indirect branch tracking (IBT). A shadow stack
+is a secondary stack allocated from memory which cannot be directly modified by
+applications. When executing a CALL instruction, the processor pushes the
+return address to both the normal stack and the shadow stack. Upon
+function return, the processor pops the shadow stack copy and compares it
+to the normal stack copy. If the two differ, the processor raises a
+control-protection fault. IBT verifies indirect CALL/JMP targets are intended
+as marked by the compiler with 'ENDBR' opcodes. Not all CPU's have both Shadow
+Stack and Indirect Branch Tracking. Today in the 64-bit kernel, only userspace
+shadow stack and kernel IBT are supported.
+
+Requirements to use Shadow Stack
+================================
+
+To use userspace shadow stack you need HW that supports it, a kernel
+configured with it and userspace libraries compiled with it.
+
+The kernel Kconfig option is X86_USER_SHADOW_STACK. When compiled in, shadow
+stacks can be disabled at runtime with the kernel parameter: nousershstk.
+
+To build a user shadow stack enabled kernel, Binutils v2.29 or LLVM v6 or later
+are required.
+
+At run time, /proc/cpuinfo shows CET features if the processor supports
+CET. "user_shstk" means that userspace shadow stack is supported on the current
+kernel and HW.
+
+Application Enabling
+====================
+
+An application's CET capability is marked in its ELF note and can be verified
+from readelf/llvm-readelf output::
+
+ readelf -n <application> | grep -a SHSTK
+ properties: x86 feature: SHSTK
+
+The kernel does not process these applications markers directly. Applications
+or loaders must enable CET features using the interface described in section 4.
+Typically this would be done in dynamic loader or static runtime objects, as is
+the case in GLIBC.
+
+Enabling arch_prctl()'s
+=======================
+
+Elf features should be enabled by the loader using the below arch_prctl's. They
+are only supported in 64 bit user applications. These operate on the features
+on a per-thread basis. The enablement status is inherited on clone, so if the
+feature is enabled on the first thread, it will propagate to all the thread's
+in an app.
+
+arch_prctl(ARCH_SHSTK_ENABLE, unsigned long feature)
+ Enable a single feature specified in 'feature'. Can only operate on
+ one feature at a time.
+
+arch_prctl(ARCH_SHSTK_DISABLE, unsigned long feature)
+ Disable a single feature specified in 'feature'. Can only operate on
+ one feature at a time.
+
+arch_prctl(ARCH_SHSTK_LOCK, unsigned long features)
+ Lock in features at their current enabled or disabled status. 'features'
+ is a mask of all features to lock. All bits set are processed, unset bits
+ are ignored. The mask is ORed with the existing value. So any feature bits
+ set here cannot be enabled or disabled afterwards.
+
+arch_prctl(ARCH_SHSTK_UNLOCK, unsigned long features)
+ Unlock features. 'features' is a mask of all features to unlock. All
+ bits set are processed, unset bits are ignored. Only works via ptrace.
+
+arch_prctl(ARCH_SHSTK_STATUS, unsigned long addr)
+ Copy the currently enabled features to the address passed in addr. The
+ features are described using the bits passed into the others in
+ 'features'.
+
+The return values are as follows. On success, return 0. On error, errno can
+be::
+
+ -EPERM if any of the passed feature are locked.
+ -ENOTSUPP if the feature is not supported by the hardware or
+ kernel.
+ -EINVAL arguments (non existing feature, etc)
+ -EFAULT if could not copy information back to userspace
+
+The feature's bits supported are::
+
+ ARCH_SHSTK_SHSTK - Shadow stack
+ ARCH_SHSTK_WRSS - WRSS
+
+Currently shadow stack and WRSS are supported via this interface. WRSS
+can only be enabled with shadow stack, and is automatically disabled
+if shadow stack is disabled.
+
+Proc Status
+===========
+To check if an application is actually running with shadow stack, the
+user can read the /proc/$PID/status. It will report "wrss" or "shstk"
+depending on what is enabled. The lines look like this::
+
+ x86_Thread_features: shstk wrss
+ x86_Thread_features_locked: shstk wrss
+
+Implementation of the Shadow Stack
+==================================
+
+Shadow Stack Size
+-----------------
+
+A task's shadow stack is allocated from memory to a fixed size of
+MIN(RLIMIT_STACK, 4 GB). In other words, the shadow stack is allocated to
+the maximum size of the normal stack, but capped to 4 GB. In the case
+of the clone3 syscall, there is a stack size passed in and shadow stack
+uses this instead of the rlimit.
+
+Signal
+------
+
+The main program and its signal handlers use the same shadow stack. Because
+the shadow stack stores only return addresses, a large shadow stack covers
+the condition that both the program stack and the signal alternate stack run
+out.
+
+When a signal happens, the old pre-signal state is pushed on the stack. When
+shadow stack is enabled, the shadow stack specific state is pushed onto the
+shadow stack. Today this is only the old SSP (shadow stack pointer), pushed
+in a special format with bit 63 set. On sigreturn this old SSP token is
+verified and restored by the kernel. The kernel will also push the normal
+restorer address to the shadow stack to help userspace avoid a shadow stack
+violation on the sigreturn path that goes through the restorer.
+
+So the shadow stack signal frame format is as follows::
+
+ |1...old SSP| - Pointer to old pre-signal ssp in sigframe token format
+ (bit 63 set to 1)
+ | ...| - Other state may be added in the future
+
+
+32 bit ABI signals are not supported in shadow stack processes. Linux prevents
+32 bit execution while shadow stack is enabled by the allocating shadow stacks
+outside of the 32 bit address space. When execution enters 32 bit mode, either
+via far call or returning to userspace, a #GP is generated by the hardware
+which, will be delivered to the process as a segfault. When transitioning to
+userspace the register's state will be as if the userspace ip being returned to
+caused the segfault.
+
+Fork
+----
+
+The shadow stack's vma has VM_SHADOW_STACK flag set; its PTEs are required
+to be read-only and dirty. When a shadow stack PTE is not RO and dirty, a
+shadow access triggers a page fault with the shadow stack access bit set
+in the page fault error code.
+
+When a task forks a child, its shadow stack PTEs are copied and both the
+parent's and the child's shadow stack PTEs are cleared of the dirty bit.
+Upon the next shadow stack access, the resulting shadow stack page fault
+is handled by page copy/re-use.
+
+When a pthread child is created, the kernel allocates a new shadow stack
+for the new thread. New shadow stack creation behaves like mmap() with respect
+to ASLR behavior. Similarly, on thread exit the thread's shadow stack is
+disabled.
+
+Exec
+----
+
+On exec, shadow stack features are disabled by the kernel. At which point,
+userspace can choose to re-enable, or lock them.
diff --git a/Documentation/arch/x86/suspend.svg b/Documentation/arch/x86/suspend.svg
new file mode 100644
index 000000000000..a69073c018d5
--- /dev/null
+++ b/Documentation/arch/x86/suspend.svg
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
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data-drawio-colors="color: #393C56; " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(57, 60, 86); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">SFH driver notifies MP2 to stop all sensor collection</div></div></div></foreignObject><image x="2" y="322.5" width="98" height="61" 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gmpD0lVeimIqwuNal8XoJFcothuPAmZA435tUzSg+vXJmEfetBuIPZumnP3XKPhLk5McErqMIo+dVDhLphupUYR4Z1QkXoA3gtGDfmRrN3mTxUKDeUMz9pjxGmR2fvVbVo+mvQFcMkmg11vPPMJP9ESNSqh2XYCEEYDvwEJNO8RpiAUhH6ckdDEGWXvmENaWhbsIeVja92XVSX6EEnmSDUcbpk859uBOEsPn97jyD4XyHgO7nRuqv93I9E2eB1FUXNH90thVOr8uWVYVifz/SuUMZrZpbUFRwywvojBOE/3YQgwnbCSfpd9wR0oqoKk0ImgiDCLsommSDK7mmmI0EUxpsaWlJ7E9MFBBxvKFGorL7uR8I2xLB5Vml+xxAuh+OJcUHBn1fpG3p9xVk1X4eHdrxcd+8S5KwvrB9jEkSI80IhCCEI07lUtXR69dCEVR94WS0qJj3OJqL7hI2QpiBl3PXMi9a/Uo6PZUKHx+2BrmqtZXClG7zphmqCgaN62kytBOUxFIe5PNTqsvtaHk8EQWhe/JXcQYwXLxM83GnGO89M8ouKyWxUpuodhM6OoeDamdS/0T7iHTwLMPCyejIuqb163Ym8pPYucO+FuAJrGksQvmPtPNG0N+8Ptk8GQ7l+Lrp5d+cpswkY74Y33vyaDlEyuWg3G7l5IHzKx1eS9lBTRhAVvC4q3Pe4nuOW2ic0NaX2g0UPMPDWQtsjXRpHW6zjf05tQhCqTWWO8yq4Pyh7IFJBGVHxqWb6KUkQeqvN8MtlP+ASzakjAMecvujyIPCy2ksQ3md/JgNU/vS01ChN9/68klcUqi3ep3beJ7W1ShDucSi4jjgNRMrj7ha3CZ4nmw5eec+dbsePxtbaTn7vyxUgUv6w+ePEI7Bzyq18myutdlPWSBBa9yJBdYY999RYt2uNMcP6Zfq76QbvV55pfu/zXkQwxivW7X3OLq+YTEd5HOk0tg/wczVgUo32tA7/y+oyFVMhrGk0A5pdlgF8QrF9OsOirW4oF/FC03ThmYyJX5rG5kUNxLkjiSjBwD4F3FTMAZNPGXR9k4CLXInLbEI0/XiFbDrMNHZA2dt3DUEkEql/QcxS/qRa895xEYvBPsp0DjW0LnyfZcdU7ISx+BE6C/lyOwg2fgbue3Dw2Mfo/WNFP7AViEb5y9rpDdXaH2zg95bNPy4+/S6O2XjnmWl+DdH7+rzymXzlBrEiQZis08rT6C2D9Z5bo9SiM77ys87UGMoZ2U8U22Ma2U7naoOZFpsaBKn6dBeIpq42okZ/M114UcbFm7Zsw4t4qtOMnQlBqAOIkSGWjzPBMglC4w9M68LCDytTHbnGUC70lZ67Ts1dnza/5kXhqxZbH+vrW9FjOt5NLe0nMUM9XS5ezo8wcFSmt+tBdxnjnWem+XU+23Rrx69/WkNIIQjT6VBZOq1voQDPraa1aP2m+MSs1vliUj7pLXv0sP7+O9cH1RnFAdokOevTugWZLncQGqO/SBuRZsMss4LXWtkTXTPQ06n8fQUa3CWTi1pssle5YmKo6VBGELqDDhF1Dr++w8kmVuDazUtDYlpfTMx3q3CZYY4pCxEMbwORCjJU+PSSQTK58IM2xZTr8i1GbsADw7M5ZWK0Wnj2rQzd3K64f50bGT3Ma+9husH7rcMI+XV3naY+pnROOcVQznRDrjSd5qQS2YGdrm4fyUQrGfi5+w5zA+znQjnoVKJz982Ee0br+YRK3H0TaOms+Ivneh3CTRJBGLk9iTIXfJ43h7lZd6rQufz2kRJ1vrJCvfUGRLnT3kHo3M6D+IsDPen/DiGiMpfffn6CfJz15Qi4dHhox8v8yMjHXfxIgARLiZb274LxudLxpJvr4/bZQbHAFRGRRVcz4ZOuvCqOxJJMX5c7+qPzc4QNXju1ouTXER8Q7CrdsZDPh5Atj9onEkSU5R4trX5z0Ht8jFZyPrXubkNnWR0UMCgokIg+CAt3j8zGsX6bfd5Xvi5gkH8M32Qy9f4c0VICDvLg4LuRTgRB6O5ywkizsnEqU0Wo/fQJm3HuO3bHQxpLaWpqTR3EtnVjIbpfsVrfYE2a+OZq3WuDQTlS4eyN7USsfA/pYoVrCULn4lpZSxNjaXZ09Gs6S2kVF5nqRtU9SmlAGp84HwEBg5xAPrmYdZ43mlr+Ety+GoCKRz72hUk4PlKAGptHGLElOoM+P2NHtY78pI8oG7xufkXM7xPbQb/+AgKD5ZsiAYMqWfJmeTTqBWMPrCY16F9HlV9Wa0KO/hwEFbNhp0I97lCEOf8wjvQULDo+LATnBIUcDTwBTwRB+OjfFSSbVEjU/Pqwv9rfm1YhNiv+9KqPQnGEl4nxayfUpFMfv4sJ+2vsCHJBp/WACHtKyTQWotMpPx+5b8zlh9rcQBhidsKvqs/3FZMuIE0hj3Kr8SSIBp1QoCpsJnMDQCqGiQpv6/58iV9DECrWs+XS82cZ+B2BCqFoC+FkvYFuACMpLdGSmgsm5Xuo/EmxKzyu0x8bHwFhr/KJoNaFfezA6vRjE7DBlxURkSDgSFPbbLwGYBWq1fs9y0CvExrWPyzsljxCEBWv+7CMOn1gpAu3sArU7+Uvh9QuU6p/1jxz/Q8G/vmGf/krIgSC97Xk1bUzfzqL3QpQi0k/StPwE7BiJwQR0UQQhKrTJwLeWHOiuGUO6ueBbald41nc5nnqaQpNoPVxsZBE66J/h823e6SOkDry6od4jr4FxqlhBOGoI1pSpxLTdRHmjrsNgfNIQxC3EegVzm92JpbaSgIYtOO543WhanVgVIZbsaTwQ1PUDd7bxkry+0S9C5tvKi72UoayXSkcHoUgwjCr7PfxRoEzrdXHQrvECMnH1cYVieaOowD+kY+aodgER4WQy9Zd4ucLyK+t+ZMznQOC8nu/o0Gf1AT99qw4fy9IB6zKmSiCMFhIkd1NB+HBMfpKIVjUmG1DCC7ryOLPemOG++VR6pZYzr6SyFG3BG2o6iR+3ew4X6yw9hhZhdpBFIIZqbnjjZfs17QhBm7k0bovB82jMoIgLNtjVz79mRess4lZufAOcna4CcRfRxbXhF1oextZUIV9nfKbo8nYGK+LSjZ4d/sqze/cIT5P7W9s9leFrHFH5Um2dUrOsm0LpKLc5bULQhAG21YFSfT3AzCOjGVapbMJx7ASoHmuPCWX1UG+mPILY+STpAK+E32gsDgcdQHDWpmz6Aavzte0bcV0hU14HsAqCJBSbe1a2LyUA7cXAPQDlK6P2/eGEUNJmaN0NwgfLf4t6jPXYj61kP7+Ah3LzOcD9OHSTShalDoTbDx4NBRe0hTVMJsA/htgPQjL/uEeu+DxMG+umjodf08W6DNgJz7HOwtqniEAf2HQHd5xjUoQhTppbnPH++LMpzLhcEf9wnhL4TdnbAl4HITlw/X8M5PXQTqCGOjpOk2VqTbKUa47h4g7wE50Q0WACq/HwPiRnZ2VjnqI8WKn7g3rh+loME5RdiuuuaqSvvhGHOo/q7pMvdMW253luHo++55CfaEEPBEE4V4rIzlnfn8aRO8fGyNHhcZrGLR0dGjH+9QDgKjO+sqst4GyZ9gma6JaaaakJXW1Oi/1CALTHYEggpjufavl9rsOoUIQtTzQ0jdBYGsiIASxNdGvvG7XuAlBVA6j5BQEBIEgBIQgpt/8cNtkVeLnrZo9FhVTNdGWugSBCUZACGKCAa1CcY6/MdjKqlz5pPpaf2/XV6tQbUVVCEFUBJtkEgSmBgJCEFNjHAxb4TXoNHXrYVj8xCcTgph4TKVEQaBqCAhBVA3qcVekDPLqt914MzN3qNdkzHRaFMec425ABQUIQVQAmmQRBKYKAkIQU2UkzNqRNzLMfZds6wum7uXNSp6cVEIQk4OrlCoIVAUBIYiqwDxjKxGCmLFDLx2vBQSEIGphFKduH4Qgpu7YSMsEgVAEhCBCIZIE40BACGIc4ElWQUAQEARqGQEhiFoeXembICAICALjQEAIYhzgSVZBQBAQBGoZASGIWh5d6ZsgIAgIAuNAQAhiHOBJVkFAEBAEahkBIYhaHl3pmyAgCAgC40BACGIc4ElWQUAQEARqGQEhiFoeXembICAICALjQEAIYhzgSVZBQBAQBGoZASGIWh5d6ZsgIAgIAuNAQAhiHOBJVkFAEBAEahmBaUEQ4m8m+hRsa0u9aXiU7gbho8XcDByT6e36mbe0MnwZD9XX8fzu7vQ/o9dc/RzTvf3VR6z2a2xpWbBbluM9AN5T6O0GG3zoYG967UT0Psr6moj6tlYZQhAThPyBrYv2jLN9PuV4WX9/+tEJKrbiYqJM4Om+wU739lc8yJLRFwEhiImZHEIQ48SxoeHE7a1ZI58D0wUAshN5ShlP04Qgpo8ENJ5xlrx6BIQgJmZmCEGMA8empuN2ZqvufwHsMxli7DiaBiEIIYjxzJ/pnlcIYmJGUAhiHDhO9iQcR9OEIKbRHcp4xlnyigQxmXNACGIc6E5lgojSremuw5/u7Y8yVpLWDIFaWZtmvZ28VEIQ48C2VibhdN9gp3v7xzEFJasPArWyNrf2AAtBjGMEamUSTvcNdrq3fxxTULIKQUzqHBCCGAe8QhDjAG8CswpBTCCYNVJUrazNrT0cW40g8nYDuUWwsRhEHwCwjXomysDvAF7Oo7N+MDj4k1cVQOM1lEulUrFnno8dQGSfBsahAN4JIF4A/0UCfgvC8lkxvivMOKyhOTXHAj0AYCeTwfMzTnPlpca2Re9ENrfAAh3B+RdRuwKIFdLkALxAwOPM3Jkbzd61Zs2dL4fVXY1XTHPmnFEXn72hIQbrdCZuKcGV8DIYfyHG/VmiZWt6O/8EgMPaXcnv4yUI1Y/6+o0HscWnAWj14D82P4br+WdrH0xvrKSNKk9+HtJBBHzCU88mgB8joqXuOdjY3H40AT8t1seEizI9Xd82qT+RSG1DcRzFrOqi/QHs4uRzxoXXMGjp6NCO961d+/1R3RozmLdjzZjI9RXUN884KQNQV5/wC4Z1VaZ3xRo1zyabIKKsr7K2eAxR1V4Ys/lMAi8AsFdhL3TWPYDVTLh2z105k06n1d+q+lWdIJTdQCw+eikTPu3apHWdfgmgTwz0dv68saX9QmJcPpaIsGygp0st5rCPmlpTB7GNawGHhMK+TSD+OrK4ZmAgPaRLPIEEQU2t7S1s83cAOiCsYa7fs8RYmsvWXVIkUF3eKBO4gg2WGpOpdiL6DoC3m7SdgQwTnz7Yk37cJH2UNBW03ylebaKwcDqI/hPA2wzqHGLgRh6t+3IQ9rpyEi2pj4BxvcE8fImZP5PpS3c1Nrd/rAKCKI7N/4T3iZ8A4ayBnvSvvBgaEsSEry+fMTCtJ0dEt3PWPjsez9VPFUtqP4JQfd2cpcsIODtkL1Sc9wTZ1in9/Z0PG8zTCUtSVYJobO3Ym2zuAvAhwx4MMfPHLaK9GPhWFIJwTlAx61IGf9Z1GjeslgfteO74we47nvVmmAiCUCehWdu+8g0wzovetnyLGPg/y87O7++/46/VJAh1Wnz2OVwIoksraPsQE5+d6Ukvm0hpohKCOLAttWtdlpYzHIky6reOLWrPrO78vUFGSjS3qw3gisLJ0CALcmC+BBY9AcadxQxhEkSF80q7xsIIYrLWlxccR2rY5pWLGPhK+CY6lvtBi3Ofsyl291RwtaEjCNi5cxCzbgKowWRCFNJsYqbTMn2dd0TIM66kVSOIpqYF72Qrfo/LqKzY8JxiR8DK5Dc+PoCAD7omwwYw+kE4ypQgnIWyzcZrAD6jDB3Cy8T4NYOeVhucpr5ilsfJzh7p3YAb2xbtRVn+nFrszLwtEY4BsH0h0wjAqwDrH2P1WnT9wOoVv3G1gxItqQvA9M2yDTYv/v8BsNY56YnrwdwA0Ht1i4MYP5hVt/7T3d3dWW8/J0uCaGppX8iMmz2bXQ6MZ5iQIZCjFgTxh8HYT7MpbmBY8zK9KwbHNXNdmaMSRMBcLKhgsBqglxi8PQHNAPbQtPU5i635fX0rHgnqhw9eKssmUlIV6GkN2+i4AAAgAElEQVSfepQ6QfkNmmtIECHzKt8ngN8GQisYb3G1ewispAn697G6fPx2qd8nc315sPTvE7AJwIMBfXoQwN4uCXer+WLyEoQ63BEw7B5b93xw1j2QBONdmkPY77OWdfjDq1c8M1HrJ6icqhCEcwrYduPNzNzhbgwBD2QtPnPN6rTarMe+uXOPe4s1q+6/CDhTe0oNVjH5TCp+wmac+47d8ZBXlxdQ3/31cT7e716iEj2nXgKhp2y2z9K1TYHiuPOoy34RYOXOo3h3on5aTzYd3N/fmScU1zcZBKFwis2q+wUApdMufNyds/AJ7xiqH1UbNmfp8wRcUtpuurU+/uKpOmKrZNJHIQgHlyzdDuBwT13rmHBWpqer3yvdNLSk9iGmHxLQ6M1jx7PzdJKmSpdoXfTvsO37AOzsyuenxgxVowRJEI3J1DFEtMJDyC8B+Oweu3GXe847UuDz1P7GPdpVfmqoAAmiausrmVzUYpO9ynUAc4gVzOeNbN5pefH+RP1R9elvz+GjFlnXv3GH+W7NPJoyBOFp20vMdN7o5h263P1x1n3L4n0tzv1Eo3FZMtDbdW0layVqnqoQREMydahFpMQ9dRHtfOr0yzaf66frV0kCTtq+dxA+KqAHkeOOgYH0/wsAiBpbUqcS03WuduaIcFp/T9ctunwVEAQlWjquBvMSV3l/Q44PHhhIPxkyeMX2/cBNmsx0UqavU02iSSeIxub2Qwj4OYBZhcrW2aOxQwYHb3sxCNdEMnURyJGYit/zbNHBhiqa0DkdhSAak+1nEeEaz8Gja2Q2nxF0Ae2rviF8b6Cn63wvqfgcitYzcGKmt0udbrWfUn3Fs7gNoDZvAj+CKBxwVrkJjIE/wqJjgzBWKl/YfBcB/1pWl48EUa31Vbgfug1E811tWw/LOm5g9QpF4tovQDqcigTxOHI8P2jta/tTRW/Lk04QbW1t8eHsLssAPqE4ourC0h4Z/VjYaxy1yOq2eeUGAj5eMhv8JQjdBqxVFfnML2psbleSizrxFj7uH5mNI3WbR1SCmNO2+K2zstlfArSvq37j00Bz8wk75TB6r1tvyYSLMz1d36gKQbS0n0eM747VZfhYoKFh8S5WXU5timN3T37EFsoGmgSmBDHnkNQOszbjHoCaos5Fld5n03/O4txhfX0rf+duWlNTKsEWKemhqH7MMWNJpq/r+rA+JhKp9yJGvwTwDndaP4JoaulYxMzqEFN8+TZkM88f7Eur13aBn88pXd1x6VzDV2196fALOqy5O9nYvKiBYN/reWk41QjCeIwSze3nAM6hpvg9bcezrX6Sa9iYR/l90gmiuXnhu7OIdROwZ6Fh6qXBSf09nUocDv2amjo+xBarxbJFTPfZmOa2pt4Vs52FpXR36guUAHSVa8oYYeAo3akvKkEkEql/oRidzXkVzX4g5GKcO7y3d+VToUAUEiRa2m8C49SwTXoyVExlGzGQro+vP8FAVaQuam8CcDDAf2XQo4C1fKLuIUwJQiMBqTuj+QO9abWRG326+ajbuJuS7Zcx4UtbCvU/aOgq1mwK0NWTP4DtfKvSsmwpJ5IKT7fpawmimutrnPjp+jS1CCKCFNCQTDVb5Bw2tiuM8YT2JWjiTzpBFHSj6tbdOd0w8EwcuTbTTVG7AHwIwlsXCE8iy20DA+m/G61+R29evuCI8Y3+vq6LvWVEJQjTNgSl26oEkexYQMQrXe2blFdJUXEyJQjNpjMYQ9283t5bN5jWqd+QeVV9fLtUd/dNm1U5PpKesQ1Dvoyyg5WWIHQHMGZekOlLj9lPhPVNswFpCaJa60t3uPFbg359m+xNNcoBTLNPKBW7dk/R9UczxrVDEJpFWbKYwiav+r3RULXhrUtdgv9z2/rjfvuLm18zqaeYprGl/UvEuMx1+tO2eaYRhOYE6Uhpb5zCf6Pe+NvZ+KqQ+4gow2Cc1oQg9j3s5O3e9Prwne5nrQxcnentUs+gI32JZMeZIHariv4cp2xLT88dzzvzNf+cW0myuxUKfs1mPmKwL91rWpG2vRpDOa9UFPUAptqjVIBUl1vtvovQqZiqtb40G6KvFO9LEOV9mtBNdbwEwUwLTZ+rbo19pojrZEsQ1JhsX06Ek8YqZPygv6/rU6YLxVlwyY55RKxCZeZ1rBoJwudk9yfAUvEaIn6snmeOPS8EWHvSrNLAUTK5aDe27I8y40QAHyl5qeIjTUWZwCYbbAFAzR1NGbTPgrCKGStnx7ftLZ6qIw5ApOQm7dfe/zCdNdDXeUOkytSGGiLya1RZFemMm5LtNzLhk8X26VRMGrL6lcWbj+7r+6l6Bmr0+ZBnyR1ENddXU1PHgWyxei23Y3654x+w+dAokRo1fZpKBJFjpqMzfZ3qniT0q9I+o23HpBKEdpOK4C6g2OKylxNagiiPwRyKvHmCkhNiMdtEDpzC6vWstXuMeB+A38dM+7/xYuhAj1uQ8hZXlyCgLnrrhulWYhxpAF8W4LVg3GjqIsSgzLIkJgShE/PDjMH82qJ5yVOy+TSWq+K08yesr2XWzToJwivtRtBtu+v3qi692OjWclj7I/xeKoF5XIwAqAg/T5+mEkFEastE7jMRxsRJKgRhhthkEAQ1tKT2JqYLHGO7UsMls1blR1D75HeSJAinXc4TxDiWgOnLAN5s2Fhl+JVhWJ8v+ssxzBeabAoQRInO3qQ9oZ3S+CDTShCGjxbC6hOCCEOo9Pco62u8G/x480frWWlqIQgz9CaUIBznXDn7SiIcG9FdxfoCqW/xG7QVCKIImWMIl8PxxLig4GOo+MwyCNUsAV8bHtrxcq9hkNlQlKcy2ZAnWYIouWMwaY9JX00kCNNHC2H1CUGEISQEEQ0hg9RbW8UU5rvGoAuBSSph9rx1Ld/uY+3pru9FgP9MoF6bqXu0znp4bfdt/zDdEKKccCZiQ3NUT5uplaC88+KwEIkox+AvZHrTW2wqxjEYJu2fZIKYkSqmyVpfXi+2omJasNtkOh4MWnqTKkE46ogJEIHLLgU1p2bdRZuy1o56IR5ln4pKEAVDrbs0VrJ/Z+AWwLpvNE7r1nbfptx5a11jm+JZbYLw4OZcrNvIzQPhUwDN0fiSMrHCNhoOE4KYyEtq7yW09xK17FEFMGmX1GUv/IBJuaSu5voKu+MxmRSaS/VIev+wOqKsr6j7hLfu8eYP68tWJYiyJ6MVXKI1JjtOJHIsRfOfj1rF++oDFdQVBcyoA6exeM2BcCOyfH6Ay5GSJk0TgihpsxP7w84t9xBjpJccQeNiQhBtbafNHs6+lgboY2PTqMIDhHdTVm4teDTWWnzi29SU2g8WPcDAWwt1RX7mqmuv7sTuJaNKnrnqyNPnmWvJq6rJWl8NbQv2sLLx1W6D16i2HRpbFCGIKJvb2FZbQaYoWTSnqah+eNTTSuUobYu7DR+C0Dz583VmF9CHohWmskx9FqBHme0HZte9tNJrMRyFIHTPBE1djhTbmkwe82abZqvnvuqpayBZRjnhmGywygocMUttrq2ArZzWxWKwjzI1eGxoXfg+y46pJ8dj8SMmSkVh0n4F1tY0lANg7FJFtXUchnKRrcNNDeWqtb4mwmZlIqSQoH0uyvqKsk/o6hxv/ij7tTft5KuYEqm3I07dYCiX1c4XZWPQGmf5SRAatxwMXJrp7VIBYYyimen84PgZVEUZOK11bURDrShuR6JMYJMNNlE+jrkop7qJuo/STXaT9qt8OlcbzLTY1GBJlaFzVqc92Te3X0XAuVvaG83VRlNL+0nMUO5Jxi7+9a42yiUjIJqrjXL/Y85iKfPFpHUzMknrS+PWJZKb66bm9q8WYkgUh0AkiAqYYtIJIu+VdRweTMuc5/mrmHw9QBIfPdCTVqEIAz91yh/J7nI1g1W0u+I3xLCOzPSu6PZmjkIQOjE+yh2Jn8v0aj1z1bogIeocfn2Hk01eI2kIBlGsSYMGzpQgJslZn1ZKHY+zuYKKRRlRlQTWiuCs71WLrY/19a3oCZvzPi7JtQRRzfU1HjLycXYoBBE2GTS/V4MgkEwu/KBNMWUZubvrRNWdjWPxw91pFXdV9xVDJ/64LOhMgBdRnWtxE9fHinYKYTRL62O+W8XN1t0RaAjCV9fsIzb/EXHr8Ez3ir8EjV3e7oC+C1YXvltOlI40xrgl09d1ildCmmgJQtWlv0PhLw70pP87REIjr8vvSnTlfhiZEoQjRWjcfTPhntF6PqESd98EWjor/uK5XvWjn7vvMHfVeRKj7wNQ8RpKvijuvt/IH+pKOk9Esdt1Uc38jAiruL4o0dKu5rwKzrXlsBYSkTCvCqVOAId44BOCmKoE4R/bgZ8gC+f0r04r3fSYCsg/0EyhhwEE4SMFqIwbwHwhbNzq3ewD4mSvR4D04ScV+MW50Ii9qtuP2IRTdbGaCzEIjgLzN31jGftcxE8GQejiDgBwYmRnR0e/pnPfrrClutFvlgV/8omjUMEcVr66vlASszzgcYJ/wCD9XFTtSSZT788RLSXgIE/7Al3J+wUMItB/cM7+sWceUkPL4g9bnP2hX4zyCgIGPcdMn9lzd/tub8CgkOA6fu6+HWeWGil7UtaXT2wHv5jslGhdtB9se7lPSGMhiAoWV1UkCNWuwDCFwLMM9DrhKv1DVW7pXkgcAnUKq99MaZ94w0MgPAqmx/IF2v/m8wxTeSr9fKYnvdQPV91Lk0LaTflQiOrBlf3V/t60CtGpLJC1fv4dh3elITtjYHt/EH2gLLSnCgQDvMcVtEf7rHEyCEL1QXeCLPRZudV4EkSDYBoOCZcaJUZH6LSOQhCOJOQf/jZKyNHAw0Ox0T4BitTPJiFHbQB1xbJC7u50J+58VieUbWDI0VEAVsl9R1DI0SqtL2fNtKTmgkk9zHBH5VM/ja3jkNCwRfiEIEJXUnmCqhGEqjp/erOue8MA7OQIbVULaSnDUa/sVJjwvhHliuUGieoGdQ8BuHCgt0tFlwu83A7YAPJN9bj1LfjpUZePpi4qis3dxETK5XifxXy/6wml9o39ZBGEo4orj7xnAOlYknVsUftERZNTpUYlCIfo8uqVWwFqidL4fFp+AlbsBE+scb9iqLE5dR6BLtfFFffJNATG10F8mPtpcNjjDkettc3Gqzgfi93Eql1VvwHg/wDoC4WDR76HAQShfq/W+nLGNx/JUEVN9JKE79AptaEFZJmdmPFOP23woYO9aRXne9xflPUV5a5S17Dx5h9PZ6tKEKqhJvFwt3SInyDbOiVn2bYFUtGxjAnCU9cV7ueVQYCpp6dMfLpO5aPLZ0B6ZUF1Ei2pjyj32L5qo9KKsgzcnLOsr6hA5Rq1lvY1UZQJXMkGW/C4+SMfcV4H1RADN/Jo3ZcHB3/y6ngmrTdvJe1XZeQvXekcEBTxOp5DQz51WPn2rDh/zy9OuU/+0HjTrnzPkcUnz7KwZniU7gbho8XfmHB+pqfryqA2RltfcMi6jkdf8VjqGtmouOqatPVV7GsE9zRZMF0J2/4K4rTUFVxLCCJsdmt+rzpBFNugNrCRHB3LzJ8G0fvHXDM44jCvYdDS0aEd71MvZEy8uQb1XZ2s4rM3NMRgnc5kJwHaw6W62QTw3xi0ygb9aE1v55/CpAZvXWqh/P0Fpy/nA/ThUulA7yq8EE71CAKUNKVCYO7qOvW9SMBvmblT4wW17FUYaV4TTTZBFDCguc0d74szn8qEw0HYy+ViQznne4HUZSlh+XA9/yzoEriCuTuWpVKCcM/F4aw1D2Bl++IeC6cPAPoBStfH7XsjEkNJtzxj3gpgl0ICNQcfA+Na2LhT3U1EGT+/g4taX2CcwoT9veuLCNe+fVfcp+4mxntCnez15eqf4+DSAn0GjENdno4d9SbDWpmz6AZ1kHIOAKVeHIQgKlhkW40gKmirZBEEZgwCGrsZo1N9JQB5jfIqib9QSb2SZ+ojIAQx9cdIWjgDEdC4m5jQE7AbUm+Ankqd483AYar5LgtB1PwQSwe3BgKJ5vYfqrf4b3i3/QOA37DFtwysThdezoW3KNGcOgKgu4uv1bz+nkrVY5QG8H5Avc7jx2Dj+1HisCea288BcE2xzEpD9Yb3SlJMNwSEIKbbiEl7pwUCGlcRZY8V/DriY2Tnm9/rwNH7ci4IMJ1tS5T802IwpJEVIyAEUTF0klEQ8EegMZk6hojucD082MCw5mV6VwyG4EaJltQFYPqmK2+OiE7q7+lcoctbFlhI2coYWOj72Ca9SjYf0d+fHpDxFQSEIGQOCAKTgEDexbl9P4C9XcW/xEznjW7eoUvnv0qd5uN1dV9hgvIFFnflu78+zsf7vaDSORBUtho249x37I6H3FbUxTKVE0wrR1d4oxr6uQ6ZBIikyGmAgBDENBgkaeL0RCDIitp51gprneqZYwnMaARhz3IDN3oKln1syP1FoBU1MX7NoKfzKLIKV6ue8haf2G4BlzAQR3ZhT88dz09PxKXVE42AEMREIyrlCQIFBPKWza9czMAlESyb3fgZW50bGGwGjou6mB6N8ykBzjNlXGcgAkIQM3DQpctVRSCKFXWxYRVZnUe0oi7W9QoYl8Hma02jGlYVPalsqyIgBLFV4ZfKZwoCavN+5vnYAQReDNiHAPQOl8X9hFts19dvPAiExRrPAVkAfyWmHjBuGx7e4X9N4nnMlHGSfpYiIAQhM0IQEAQEAUFAi4AQhEwMQUAQEAQEASEImQOCgCAgCAgC5giIBGGOlaQUBAQBQWBGISAEMaOGWzorCAgCgoA5AkIQ5lhJSkFAEBAEZhQCQhAzarils4KAICAImCMgBGGOlaQUBAQBQWBGISAEMaOGWzorCAgCgoA5AkIQ5lhJSkFAEBAEZhQCQhAzarils4KAICAImCMgBGGOlaQUBAQBQWBGISAEMaOGWzorCAgCgoA5AkIQ5lhJSkFAEBAEZhQCQhAzarils4KAICAImCMgBGGOlaR0IdDSsmC3LMd7ALyn8OcNNvjQwd70WgFKEBAEagMBIYjaGMeq90IIouqQS4WCQNUREIKoOuS1UaEQRG2Mo/RCEAhCQAhC5kdFCAhBVASbZBIEphUCQhDTarimTmOFIKbOWEhLBIHJQkAIYrKQrfFyhSBqfICle4IAACEImQYVISAEURFskkkQmFYICEFMq+GaOo0Vgpg6YyEtEQQmCwEhiMlCtsbLFYKo8QGW7gkComKSOeBGYM6cM+rq6zcexBafBuCjAHZxfie8DMYvGNZVmd4VawBwFIIoS8t4qL6O53d3p/+pik8mU++3LfocbBwBwp4AYgCGwPwEE26xR7LL1qy582XvaKVSqdgzL1AjMc7RtHcdA98ZHdrxvrVrvz9awUjT3OaO91ngTxBwDIC9AGyzBQ/+A4E6syOjP9G1zaQ+hXd89oaGGKzTmbgFwDsBxF2Y/4UY92eJlq3p7fyTwt2kXG+aRCL1Xo7RJz39yAL8JMNambPohodXr3hG5Qsbq0rqlzzTFwGRIKbv2E1ky6mpNXUQ27gWoA8EFJwjots5a58dj+fqTS2p/Tad4WHMorh1HTMfXyAFv6o3AbRkoLfz5uIm2di2aC/K5pYDpDbWoG8dW9SeWd35e1PAGlpS+xDTDwloNMiTJcbSXLbuksHBn7xqkN6h3MZkqp2IvgPg7SZ5GMgw8emDPenHTdKrNAe2pXaNjdI1RDg2BN8sA9fNjvPFuVzuzSXj6iFz07olXW0gIARRG+NYcS8cqWGbVy5i4Ctjp9fw0h60OPc5m2J3m7ja0BEEMX3WtvgWAv4tvDonxRARTu7v6VqZTC46wCZb1b27SV4GnoFFh4eRhJJI/v48ncPAt8akBZMKnDT0FCw6fmD1it8EZVF1PPscLgTRpSGbtq6YISY+O9OTXhYmTSRaF/07bL4d4HcbdwEoH1chiAjw1V5SIYjaG9MoPaJES+oCMH1Ts1ltAvAgQC8B/DYQWsF4i6vwBwHs7ToB+/pi8hIEA/9HwDCAua7y1jPwEIFeJfC7OH96f7OnM7+32DrTJvt6APsUfssB/ARgZfL/txsLUpBSU7k+urU+/uKp3d3dWR+AQrDgxwBrXZ4L+MNg7KchkfUgPnqgJ63UcNqvqaV9ITOUJJRXV+W/HBjPMCGj+h9SxwaGNS/Tu2LQt46mBe9kK36PC6NiUiUp/I5Aj6g/MPgAAj5YejBQWJJSLe7kZBKC8IN5RvxdCGJGDLO+k8nkohab7FUAtnel2ATm80Y277TcrbtXJ9+/PYePWmRd73MqNSYIz8b9lM32We/YHQ+l0+lc8beGhhO3p/jotUQ4ydP6EQCzCn+7K2tZ5xb152N5WxbvS5xLE/CvrrzryaaD+/s785u85/PZuF9ipvNGN+/Q5b3HaGtLvWl4FEtA9J+ezX6dHc/OG+y+41lvHXPnHveW2Ky6XwDYf8tv3J2z8Ik1q9NPe9OrOjZn6fMEXFK6ifuTndOuLN0O4HBXeTlm3JWLWed5sTqwddGesZx9pa8aSghiBu8QYgcxYwc/kUhtAwu3gWi+exOFZR03sHpFfwWn00oI4nGys0f299/xV119DQ2Ld7HqckpS+VD57/T9kaEdlvhdQDc2L2og2PeOnYSd0zCdNdDXeYO3LLVJxm37/oJEVPz5ceR4/sBA+smgSdLY3H4IAT8BsHMxHQOXZnq7FHGUXCoX0v7cRXDr7NHYIYODt70YUAclkqmLQI6UV/yeZ4sO1qnMmlraT2LGTS6JMEfApcNDO17mh1VBzXgx54moVPISgpixe4TquEgQM3T4m5pSCbboPpf0kCPCaf09XbeEQaLdfIGoBDEC8PyB3rRqg+/XlGy/jAlfcidQKirLHj2sv//O9X4Z29pOmz2cfS0N0MdcG/fVmd6uz3rzJJrb1Suoa0qIMkRV5C5Dsyk/nbP4YK9U0NjSfh4xvjuWl7BsoKdLvRgL/HREyUwnZfo6FTGNfXMOSe0wazPuAahp7I/Md8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diff --git a/Documentation/arch/x86/sva.rst b/Documentation/arch/x86/sva.rst
index 33cb05005982..6a759984d471 100644
--- a/Documentation/arch/x86/sva.rst
+++ b/Documentation/arch/x86/sva.rst
@@ -25,7 +25,7 @@ to cache translations for virtual addresses. The IOMMU driver uses the
mmu_notifier() support to keep the device TLB cache and the CPU cache in
sync. When an ATS lookup fails for a virtual address, the device should
use the PRI in order to request the virtual address to be paged into the
-CPU page tables. The device must use ATS again in order the fetch the
+CPU page tables. The device must use ATS again in order to fetch the
translation before use.
Shared Hardware Workqueues
@@ -216,7 +216,7 @@ submitting work and processing completions.
Single Root I/O Virtualization (SR-IOV) focuses on providing independent
hardware interfaces for virtualizing hardware. Hence, it's required to be
-almost fully functional interface to software supporting the traditional
+an almost fully functional interface to software supporting the traditional
BARs, space for interrupts via MSI-X, its own register layout.
Virtual Functions (VFs) are assisted by the Physical Function (PF)
driver.
diff --git a/Documentation/arch/x86/tdx.rst b/Documentation/arch/x86/tdx.rst
index dc8d9fd2c3f7..61670e7df2f7 100644
--- a/Documentation/arch/x86/tdx.rst
+++ b/Documentation/arch/x86/tdx.rst
@@ -10,6 +10,191 @@ encrypting the guest memory. In TDX, a special module running in a special
mode sits between the host and the guest and manages the guest/host
separation.
+TDX Host Kernel Support
+=======================
+
+TDX introduces a new CPU mode called Secure Arbitration Mode (SEAM) and
+a new isolated range pointed by the SEAM Ranger Register (SEAMRR). A
+CPU-attested software module called 'the TDX module' runs inside the new
+isolated range to provide the functionalities to manage and run protected
+VMs.
+
+TDX also leverages Intel Multi-Key Total Memory Encryption (MKTME) to
+provide crypto-protection to the VMs. TDX reserves part of MKTME KeyIDs
+as TDX private KeyIDs, which are only accessible within the SEAM mode.
+BIOS is responsible for partitioning legacy MKTME KeyIDs and TDX KeyIDs.
+
+Before the TDX module can be used to create and run protected VMs, it
+must be loaded into the isolated range and properly initialized. The TDX
+architecture doesn't require the BIOS to load the TDX module, but the
+kernel assumes it is loaded by the BIOS.
+
+TDX boot-time detection
+-----------------------
+
+The kernel detects TDX by detecting TDX private KeyIDs during kernel
+boot. Below dmesg shows when TDX is enabled by BIOS::
+
+ [..] virt/tdx: BIOS enabled: private KeyID range: [16, 64)
+
+TDX module initialization
+---------------------------------------
+
+The kernel talks to the TDX module via the new SEAMCALL instruction. The
+TDX module implements SEAMCALL leaf functions to allow the kernel to
+initialize it.
+
+If the TDX module isn't loaded, the SEAMCALL instruction fails with a
+special error. In this case the kernel fails the module initialization
+and reports the module isn't loaded::
+
+ [..] virt/tdx: module not loaded
+
+Initializing the TDX module consumes roughly ~1/256th system RAM size to
+use it as 'metadata' for the TDX memory. It also takes additional CPU
+time to initialize those metadata along with the TDX module itself. Both
+are not trivial. The kernel initializes the TDX module at runtime on
+demand.
+
+Besides initializing the TDX module, a per-cpu initialization SEAMCALL
+must be done on one cpu before any other SEAMCALLs can be made on that
+cpu.
+
+The kernel provides two functions, tdx_enable() and tdx_cpu_enable() to
+allow the user of TDX to enable the TDX module and enable TDX on local
+cpu respectively.
+
+Making SEAMCALL requires VMXON has been done on that CPU. Currently only
+KVM implements VMXON. For now both tdx_enable() and tdx_cpu_enable()
+don't do VMXON internally (not trivial), but depends on the caller to
+guarantee that.
+
+To enable TDX, the caller of TDX should: 1) temporarily disable CPU
+hotplug; 2) do VMXON and tdx_enable_cpu() on all online cpus; 3) call
+tdx_enable(). For example::
+
+ cpus_read_lock();
+ on_each_cpu(vmxon_and_tdx_cpu_enable());
+ ret = tdx_enable();
+ cpus_read_unlock();
+ if (ret)
+ goto no_tdx;
+ // TDX is ready to use
+
+And the caller of TDX must guarantee the tdx_cpu_enable() has been
+successfully done on any cpu before it wants to run any other SEAMCALL.
+A typical usage is do both VMXON and tdx_cpu_enable() in CPU hotplug
+online callback, and refuse to online if tdx_cpu_enable() fails.
+
+User can consult dmesg to see whether the TDX module has been initialized.
+
+If the TDX module is initialized successfully, dmesg shows something
+like below::
+
+ [..] virt/tdx: 262668 KBs allocated for PAMT
+ [..] virt/tdx: module initialized
+
+If the TDX module failed to initialize, dmesg also shows it failed to
+initialize::
+
+ [..] virt/tdx: module initialization failed ...
+
+TDX Interaction to Other Kernel Components
+------------------------------------------
+
+TDX Memory Policy
+~~~~~~~~~~~~~~~~~
+
+TDX reports a list of "Convertible Memory Region" (CMR) to tell the
+kernel which memory is TDX compatible. The kernel needs to build a list
+of memory regions (out of CMRs) as "TDX-usable" memory and pass those
+regions to the TDX module. Once this is done, those "TDX-usable" memory
+regions are fixed during module's lifetime.
+
+To keep things simple, currently the kernel simply guarantees all pages
+in the page allocator are TDX memory. Specifically, the kernel uses all
+system memory in the core-mm "at the time of TDX module initialization"
+as TDX memory, and in the meantime, refuses to online any non-TDX-memory
+in the memory hotplug.
+
+Physical Memory Hotplug
+~~~~~~~~~~~~~~~~~~~~~~~
+
+Note TDX assumes convertible memory is always physically present during
+machine's runtime. A non-buggy BIOS should never support hot-removal of
+any convertible memory. This implementation doesn't handle ACPI memory
+removal but depends on the BIOS to behave correctly.
+
+CPU Hotplug
+~~~~~~~~~~~
+
+TDX module requires the per-cpu initialization SEAMCALL must be done on
+one cpu before any other SEAMCALLs can be made on that cpu. The kernel
+provides tdx_cpu_enable() to let the user of TDX to do it when the user
+wants to use a new cpu for TDX task.
+
+TDX doesn't support physical (ACPI) CPU hotplug. During machine boot,
+TDX verifies all boot-time present logical CPUs are TDX compatible before
+enabling TDX. A non-buggy BIOS should never support hot-add/removal of
+physical CPU. Currently the kernel doesn't handle physical CPU hotplug,
+but depends on the BIOS to behave correctly.
+
+Note TDX works with CPU logical online/offline, thus the kernel still
+allows to offline logical CPU and online it again.
+
+Erratum
+~~~~~~~
+
+The first few generations of TDX hardware have an erratum. A partial
+write to a TDX private memory cacheline will silently "poison" the
+line. Subsequent reads will consume the poison and generate a machine
+check.
+
+A partial write is a memory write where a write transaction of less than
+cacheline lands at the memory controller. The CPU does these via
+non-temporal write instructions (like MOVNTI), or through UC/WC memory
+mappings. Devices can also do partial writes via DMA.
+
+Theoretically, a kernel bug could do partial write to TDX private memory
+and trigger unexpected machine check. What's more, the machine check
+code will present these as "Hardware error" when they were, in fact, a
+software-triggered issue. But in the end, this issue is hard to trigger.
+
+If the platform has such erratum, the kernel prints additional message in
+machine check handler to tell user the machine check may be caused by
+kernel bug on TDX private memory.
+
+Kexec
+~~~~~~~
+
+Currently kexec doesn't work on the TDX platforms with the aforementioned
+erratum. It fails when loading the kexec kernel image. Otherwise it
+works normally.
+
+Interaction vs S3 and deeper states
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+TDX cannot survive from S3 and deeper states. The hardware resets and
+disables TDX completely when platform goes to S3 and deeper. Both TDX
+guests and the TDX module get destroyed permanently.
+
+The kernel uses S3 for suspend-to-ram, and use S4 and deeper states for
+hibernation. Currently, for simplicity, the kernel chooses to make TDX
+mutually exclusive with S3 and hibernation.
+
+The kernel disables TDX during early boot when hibernation support is
+available::
+
+ [..] virt/tdx: initialization failed: Hibernation support is enabled
+
+Add 'nohibernate' kernel command line to disable hibernation in order to
+use TDX.
+
+ACPI S3 is disabled during kernel early boot if TDX is enabled. The user
+needs to turn off TDX in the BIOS in order to use S3.
+
+TDX Guest Support
+=================
Since the host cannot directly access guest registers or memory, much
normal functionality of a hypervisor must be moved into the guest. This is
implemented using a Virtualization Exception (#VE) that is handled by the
@@ -20,7 +205,7 @@ TDX includes new hypercall-like mechanisms for communicating from the
guest to the hypervisor or the TDX module.
New TDX Exceptions
-==================
+------------------
TDX guests behave differently from bare-metal and traditional VMX guests.
In TDX guests, otherwise normal instructions or memory accesses can cause
@@ -30,7 +215,7 @@ Instructions marked with an '*' conditionally cause exceptions. The
details for these instructions are discussed below.
Instruction-based #VE
----------------------
+~~~~~~~~~~~~~~~~~~~~~
- Port I/O (INS, OUTS, IN, OUT)
- HLT
@@ -41,7 +226,7 @@ Instruction-based #VE
- CPUID*
Instruction-based #GP
----------------------
+~~~~~~~~~~~~~~~~~~~~~
- All VMX instructions: INVEPT, INVVPID, VMCLEAR, VMFUNC, VMLAUNCH,
VMPTRLD, VMPTRST, VMREAD, VMRESUME, VMWRITE, VMXOFF, VMXON
@@ -52,7 +237,7 @@ Instruction-based #GP
- RDMSR*,WRMSR*
RDMSR/WRMSR Behavior
---------------------
+~~~~~~~~~~~~~~~~~~~~
MSR access behavior falls into three categories:
@@ -73,7 +258,7 @@ trapping and handling in the TDX module. Other than possibly being slow,
these MSRs appear to function just as they would on bare metal.
CPUID Behavior
---------------
+~~~~~~~~~~~~~~
For some CPUID leaves and sub-leaves, the virtualized bit fields of CPUID
return values (in guest EAX/EBX/ECX/EDX) are configurable by the
@@ -93,7 +278,7 @@ not know how to handle. The guest kernel may ask the hypervisor for the
value with a hypercall.
#VE on Memory Accesses
-======================
+----------------------
There are essentially two classes of TDX memory: private and shared.
Private memory receives full TDX protections. Its content is protected
@@ -107,7 +292,7 @@ entries. This helps ensure that a guest does not place sensitive
information in shared memory, exposing it to the untrusted hypervisor.
#VE on Shared Memory
---------------------
+~~~~~~~~~~~~~~~~~~~~
Access to shared mappings can cause a #VE. The hypervisor ultimately
controls whether a shared memory access causes a #VE, so the guest must be
@@ -127,7 +312,7 @@ be careful not to access device MMIO regions unless it is also prepared to
handle a #VE.
#VE on Private Pages
---------------------
+~~~~~~~~~~~~~~~~~~~~
An access to private mappings can also cause a #VE. Since all kernel
memory is also private memory, the kernel might theoretically need to
@@ -145,7 +330,7 @@ The hypervisor is permitted to unilaterally move accepted pages to a
to handle the exception.
Linux #VE handler
-=================
+-----------------
Just like page faults or #GP's, #VE exceptions can be either handled or be
fatal. Typically, an unhandled userspace #VE results in a SIGSEGV.
@@ -167,7 +352,7 @@ While the block is in place, any #VE is elevated to a double fault (#DF)
which is not recoverable.
MMIO handling
-=============
+-------------
In non-TDX VMs, MMIO is usually implemented by giving a guest access to a
mapping which will cause a VMEXIT on access, and then the hypervisor
@@ -189,7 +374,7 @@ MMIO access via other means (like structure overlays) may result in an
oops.
Shared Memory Conversions
-=========================
+-------------------------
All TDX guest memory starts out as private at boot. This memory can not
be accessed by the hypervisor. However, some kernel users like device
diff --git a/Documentation/arch/x86/topology.rst b/Documentation/arch/x86/topology.rst
index 7f58010ea86a..86bec8ac2c4d 100644
--- a/Documentation/arch/x86/topology.rst
+++ b/Documentation/arch/x86/topology.rst
@@ -47,27 +47,31 @@ AMD nomenclature for package is 'Node'.
Package-related topology information in the kernel:
- - cpuinfo_x86.x86_max_cores:
+ - topology_num_threads_per_package()
- The number of cores in a package. This information is retrieved via CPUID.
+ The number of threads in a package.
- - cpuinfo_x86.x86_max_dies:
+ - topology_num_cores_per_package()
- The number of dies in a package. This information is retrieved via CPUID.
+ The number of cores in a package.
- - cpuinfo_x86.cpu_die_id:
+ - topology_max_dies_per_package()
- The physical ID of the die. This information is retrieved via CPUID.
+ The maximum number of dies in a package.
- - cpuinfo_x86.phys_proc_id:
+ - cpuinfo_x86.topo.die_id:
+
+ The physical ID of the die.
+
+ - cpuinfo_x86.topo.pkg_id:
The physical ID of the package. This information is retrieved via CPUID
and deduced from the APIC IDs of the cores in the package.
Modern systems use this value for the socket. There may be multiple
- packages within a socket. This value may differ from cpu_die_id.
+ packages within a socket. This value may differ from topo.die_id.
- - cpuinfo_x86.logical_proc_id:
+ - cpuinfo_x86.topo.logical_pkg_id:
The logical ID of the package. As we do not trust BIOSes to enumerate the
packages in a consistent way, we introduced the concept of logical package
@@ -79,9 +83,7 @@ Package-related topology information in the kernel:
The maximum possible number of packages in the system. Helpful for per
package facilities to preallocate per package information.
- - cpu_llc_id:
-
- A per-CPU variable containing:
+ - cpuinfo_x86.topo.llc_id:
- On Intel, the first APIC ID of the list of CPUs sharing the Last Level
Cache
@@ -98,16 +100,6 @@ are SMT- or CMT-type threads.
AMDs nomenclature for a CMT core is "Compute Unit". The kernel always uses
"core".
-Core-related topology information in the kernel:
-
- - smp_num_siblings:
-
- The number of threads in a core. The number of threads in a package can be
- calculated by::
-
- threads_per_package = cpuinfo_x86.x86_max_cores * smp_num_siblings
-
-
Threads
=======
A thread is a single scheduling unit. It's the equivalent to a logical Linux
@@ -143,6 +135,201 @@ Thread-related topology information in the kernel:
The ID of the core to which a thread belongs. It is also printed in /proc/cpuinfo
"core_id."
+ - topology_logical_core_id();
+
+ The logical core ID to which a thread belongs.
+
+
+
+System topology enumeration
+===========================
+
+The topology on x86 systems can be discovered using a combination of vendor
+specific CPUID leaves which enumerate the processor topology and the cache
+hierarchy.
+
+The CPUID leaves in their preferred order of parsing for each x86 vendor is as
+follows:
+
+1) AMD
+
+ 1) CPUID leaf 0x80000026 [Extended CPU Topology] (Core::X86::Cpuid::ExCpuTopology)
+
+ The extended CPUID leaf 0x80000026 is the extension of the CPUID leaf 0xB
+ and provides the topology information of Core, Complex, CCD (Die), and
+ Socket in each level.
+
+ Support for the leaf is discovered by checking if the maximum extended
+ CPUID level is >= 0x80000026 and then checking if `LogProcAtThisLevel`
+ in `EBX[15:0]` at a particular level (starting from 0) is non-zero.
+
+ The `LevelType` in `ECX[15:8]` at the level provides the topology domain
+ the level describes - Core, Complex, CCD(Die), or the Socket.
+
+ The kernel uses the `CoreMaskWidth` from `EAX[4:0]` to discover the
+ number of bits that need to be right-shifted from `ExtendedLocalApicId`
+ in `EDX[31:0]` in order to get a unique Topology ID for the topology
+ level. CPUs with the same Topology ID share the resources at that level.
+
+ CPUID leaf 0x80000026 also provides more information regarding the power
+ and efficiency rankings, and about the core type on AMD processors with
+ heterogeneous characteristics.
+
+ If CPUID leaf 0x80000026 is supported, further parsing is not required.
+
+ 2) CPUID leaf 0x0000000B [Extended Topology Enumeration] (Core::X86::Cpuid::ExtTopEnum)
+
+ The extended CPUID leaf 0x0000000B is the predecessor on the extended
+ CPUID leaf 0x80000026 and only describes the core, and the socket domains
+ of the processor topology.
+
+ The support for the leaf is discovered by checking if the maximum supported
+ CPUID level is >= 0xB and then if `EBX[31:0]` at a particular level
+ (starting from 0) is non-zero.
+
+ The `LevelType` in `ECX[15:8]` at the level provides the topology domain
+ that the level describes - Thread, or Processor (Socket).
+
+ The kernel uses the `CoreMaskWidth` from `EAX[4:0]` to discover the
+ number of bits that need to be right-shifted from the `ExtendedLocalApicId`
+ in `EDX[31:0]` to get a unique Topology ID for that topology level. CPUs
+ sharing the Topology ID share the resources at that level.
+
+ If CPUID leaf 0xB is supported, further parsing is not required.
+
+
+ 3) CPUID leaf 0x80000008 ECX [Size Identifiers] (Core::X86::Cpuid::SizeId)
+
+ If neither the CPUID leaf 0x80000026 nor 0xB is supported, the number of
+ CPUs on the package is detected using the Size Identifier leaf
+ 0x80000008 ECX.
+
+ The support for the leaf is discovered by checking if the supported
+ extended CPUID level is >= 0x80000008.
+
+ The shifts from the APIC ID for the Socket ID is calculated from the
+ `ApicIdSize` field in `ECX[15:12]` if it is non-zero.
+
+ If `ApicIdSize` is reported to be zero, the shift is calculated as the
+ order of the `number of threads` calculated from `NC` field in
+ `ECX[7:0]` which describes the `number of threads - 1` on the package.
+
+ Unless Extended APIC ID is supported, the APIC ID used to find the
+ Socket ID is from the `LocalApicId` field of CPUID leaf 0x00000001
+ `EBX[31:24]`.
+
+ The topology parsing continues to detect if Extended APIC ID is
+ supported or not.
+
+
+ 4) CPUID leaf 0x8000001E [Extended APIC ID, Core Identifiers, Node Identifiers]
+ (Core::X86::Cpuid::{ExtApicId,CoreId,NodeId})
+
+ The support for Extended APIC ID can be detected by checking for the
+ presence of `TopologyExtensions` in `ECX[22]` of CPUID leaf 0x80000001
+ [Feature Identifiers] (Core::X86::Cpuid::FeatureExtIdEcx).
+
+ If Topology Extensions is supported, the APIC ID from `ExtendedApicId`
+ from CPUID leaf 0x8000001E `EAX[31:0]` should be preferred over that from
+ `LocalApicId` field of CPUID leaf 0x00000001 `EBX[31:24]` for topology
+ enumeration.
+
+ On processors of Family 0x17 and above that do not support CPUID leaf
+ 0x80000026 or CPUID leaf 0xB, the shifts from the APIC ID for the Core
+ ID is calculated using the order of `number of threads per core`
+ calculated using the `ThreadsPerCore` field in `EBX[15:8]` which
+ describes `number of threads per core - 1`.
+
+ On Processors of Family 0x15, the Core ID from `EBX[7:0]` is used as the
+ `cu_id` (Compute Unit ID) to detect CPUs that share the compute units.
+
+
+ All AMD processors that support the `TopologyExtensions` feature store the
+ `NodeId` from the `ECX[7:0]` of CPUID leaf 0x8000001E
+ (Core::X86::Cpuid::NodeId) as the per-CPU `node_id`. On older processors,
+ the `node_id` was discovered using MSR_FAM10H_NODE_ID MSR (MSR
+ 0x0xc001_100c). The presence of the NODE_ID MSR was detected by checking
+ `ECX[19]` of CPUID leaf 0x80000001 [Feature Identifiers]
+ (Core::X86::Cpuid::FeatureExtIdEcx).
+
+
+2) Intel
+
+ On Intel platforms, the CPUID leaves that enumerate the processor
+ topology are as follows:
+
+ 1) CPUID leaf 0x1F (V2 Extended Topology Enumeration Leaf)
+
+ The CPUID leaf 0x1F is the extension of the CPUID leaf 0xB and provides
+ the topology information of Core, Module, Tile, Die, DieGrp, and Socket
+ in each level.
+
+ The support for the leaf is discovered by checking if the supported
+ CPUID level is >= 0x1F and then `EBX[31:0]` at a particular level
+ (starting from 0) is non-zero.
+
+ The `Domain Type` in `ECX[15:8]` of the sub-leaf provides the topology
+ domain that the level describes - Core, Module, Tile, Die, DieGrp, and
+ Socket.
+
+ The kernel uses the value from `EAX[4:0]` to discover the number of
+ bits that need to be right shifted from the `x2APIC ID` in `EDX[31:0]`
+ to get a unique Topology ID for the topology level. CPUs with the same
+ Topology ID share the resources at that level.
+
+ If CPUID leaf 0x1F is supported, further parsing is not required.
+
+
+ 2) CPUID leaf 0x0000000B (Extended Topology Enumeration Leaf)
+
+ The extended CPUID leaf 0x0000000B is the predecessor of the V2 Extended
+ Topology Enumeration Leaf 0x1F and only describes the core, and the
+ socket domains of the processor topology.
+
+ The support for the leaf is iscovered by checking if the supported CPUID
+ level is >= 0xB and then checking if `EBX[31:0]` at a particular level
+ (starting from 0) is non-zero.
+
+ CPUID leaf 0x0000000B shares the same layout as CPUID leaf 0x1F and
+ should be enumerated in a similar manner.
+
+ If CPUID leaf 0xB is supported, further parsing is not required.
+
+
+ 3) CPUID leaf 0x00000004 (Deterministic Cache Parameters Leaf)
+
+ On Intel processors that support neither CPUID leaf 0x1F, nor CPUID leaf
+ 0xB, the shifts for the SMT domains is calculated using the number of
+ CPUs sharing the L1 cache.
+
+ Processors that feature Hyper-Threading is detected using `EDX[28]` of
+ CPUID leaf 0x1 (Basic CPUID Information).
+
+ The order of `Maximum number of addressable IDs for logical processors
+ sharing this cache` from `EAX[25:14]` of level-0 of CPUID 0x4 provides
+ the shifts from the APIC ID required to compute the Core ID.
+
+ The APIC ID and Package information is computed using the data from
+ CPUID leaf 0x1.
+
+
+ 4) CPUID leaf 0x00000001 (Basic CPUID Information)
+
+ The mask and shifts to derive the Physical Package (socket) ID is
+ computed using the `Maximum number of addressable IDs for logical
+ processors in this physical package` from `EBX[23:16]` of CPUID leaf
+ 0x1.
+
+ The APIC ID on the legacy platforms is derived from the `Initial APIC
+ ID` field from `EBX[31:24]` of CPUID leaf 0x1.
+
+
+3) Centaur and Zhaoxin
+
+ Similar to Intel, Centaur and Zhaoxin use a combination of CPUID leaf
+ 0x00000004 (Deterministic Cache Parameters Leaf) and CPUID leaf 0x00000001
+ (Basic CPUID Information) to derive the topology information.
+
System topology examples
diff --git a/Documentation/arch/x86/usb-legacy-support.rst b/Documentation/arch/x86/usb-legacy-support.rst
index e01c08b7c981..b17bf122270a 100644
--- a/Documentation/arch/x86/usb-legacy-support.rst
+++ b/Documentation/arch/x86/usb-legacy-support.rst
@@ -20,11 +20,7 @@ It has several drawbacks, though:
features (wheel, extra buttons, touchpad mode) of the real PS/2 mouse may
not be available.
-2) If CONFIG_HIGHMEM64G is enabled, the PS/2 mouse emulation can cause
- system crashes, because the SMM BIOS is not expecting to be in PAE mode.
- The Intel E7505 is a typical machine where this happens.
-
-3) If AMD64 64-bit mode is enabled, again system crashes often happen,
+2) If AMD64 64-bit mode is enabled, again system crashes often happen,
because the SMM BIOS isn't expecting the CPU to be in 64-bit mode. The
BIOS manufacturers only test with Windows, and Windows doesn't do 64-bit
yet.
@@ -38,11 +34,6 @@ Problem 1)
compiled-in, too.
Problem 2)
- can currently only be solved by either disabling HIGHMEM64G
- in the kernel config or USB Legacy support in the BIOS. A BIOS update
- could help, but so far no such update exists.
-
-Problem 3)
is usually fixed by a BIOS update. Check the board
manufacturers web site. If an update is not available, disable USB
Legacy support in the BIOS. If this alone doesn't help, try also adding
diff --git a/Documentation/arch/x86/x86_64/5level-paging.rst b/Documentation/arch/x86/x86_64/5level-paging.rst
index 71f882f4a173..ad7ddc13f79d 100644
--- a/Documentation/arch/x86/x86_64/5level-paging.rst
+++ b/Documentation/arch/x86/x86_64/5level-paging.rst
@@ -22,15 +22,6 @@ QEMU 2.9 and later support 5-level paging.
Virtual memory layout for 5-level paging is described in
Documentation/arch/x86/x86_64/mm.rst
-
-Enabling 5-level paging
-=======================
-CONFIG_X86_5LEVEL=y enables the feature.
-
-Kernel with CONFIG_X86_5LEVEL=y still able to boot on 4-level hardware.
-In this case additional page table level -- p4d -- will be folded at
-runtime.
-
User-space and large virtual address space
==========================================
On x86, 5-level paging enables 56-bit userspace virtual address space.
diff --git a/Documentation/arch/x86/x86_64/boot-options.rst b/Documentation/arch/x86/x86_64/boot-options.rst
deleted file mode 100644
index 137432d34109..000000000000
--- a/Documentation/arch/x86/x86_64/boot-options.rst
+++ /dev/null
@@ -1,319 +0,0 @@
-.. SPDX-License-Identifier: GPL-2.0
-
-===========================
-AMD64 Specific Boot Options
-===========================
-
-There are many others (usually documented in driver documentation), but
-only the AMD64 specific ones are listed here.
-
-Machine check
-=============
-Please see Documentation/arch/x86/x86_64/machinecheck.rst for sysfs runtime tunables.
-
- mce=off
- Disable machine check
- mce=no_cmci
- Disable CMCI(Corrected Machine Check Interrupt) that
- Intel processor supports. Usually this disablement is
- not recommended, but it might be handy if your hardware
- is misbehaving.
- Note that you'll get more problems without CMCI than with
- due to the shared banks, i.e. you might get duplicated
- error logs.
- mce=dont_log_ce
- Don't make logs for corrected errors. All events reported
- as corrected are silently cleared by OS.
- This option will be useful if you have no interest in any
- of corrected errors.
- mce=ignore_ce
- Disable features for corrected errors, e.g. polling timer
- and CMCI. All events reported as corrected are not cleared
- by OS and remained in its error banks.
- Usually this disablement is not recommended, however if
- there is an agent checking/clearing corrected errors
- (e.g. BIOS or hardware monitoring applications), conflicting
- with OS's error handling, and you cannot deactivate the agent,
- then this option will be a help.
- mce=no_lmce
- Do not opt-in to Local MCE delivery. Use legacy method
- to broadcast MCEs.
- mce=bootlog
- Enable logging of machine checks left over from booting.
- Disabled by default on AMD Fam10h and older because some BIOS
- leave bogus ones.
- If your BIOS doesn't do that it's a good idea to enable though
- to make sure you log even machine check events that result
- in a reboot. On Intel systems it is enabled by default.
- mce=nobootlog
- Disable boot machine check logging.
- mce=monarchtimeout (number)
- monarchtimeout:
- Sets the time in us to wait for other CPUs on machine checks. 0
- to disable.
- mce=bios_cmci_threshold
- Don't overwrite the bios-set CMCI threshold. This boot option
- prevents Linux from overwriting the CMCI threshold set by the
- bios. Without this option, Linux always sets the CMCI
- threshold to 1. Enabling this may make memory predictive failure
- analysis less effective if the bios sets thresholds for memory
- errors since we will not see details for all errors.
- mce=recovery
- Force-enable recoverable machine check code paths
-
- nomce (for compatibility with i386)
- same as mce=off
-
- Everything else is in sysfs now.
-
-APICs
-=====
-
- apic
- Use IO-APIC. Default
-
- noapic
- Don't use the IO-APIC.
-
- disableapic
- Don't use the local APIC
-
- nolapic
- Don't use the local APIC (alias for i386 compatibility)
-
- pirq=...
- See Documentation/arch/x86/i386/IO-APIC.rst
-
- noapictimer
- Don't set up the APIC timer
-
- no_timer_check
- Don't check the IO-APIC timer. This can work around
- problems with incorrect timer initialization on some boards.
-
- apicpmtimer
- Do APIC timer calibration using the pmtimer. Implies
- apicmaintimer. Useful when your PIT timer is totally broken.
-
-Timing
-======
-
- notsc
- Deprecated, use tsc=unstable instead.
-
- nohpet
- Don't use the HPET timer.
-
-Idle loop
-=========
-
- idle=poll
- Don't do power saving in the idle loop using HLT, but poll for rescheduling
- event. This will make the CPUs eat a lot more power, but may be useful
- to get slightly better performance in multiprocessor benchmarks. It also
- makes some profiling using performance counters more accurate.
- Please note that on systems with MONITOR/MWAIT support (like Intel EM64T
- CPUs) this option has no performance advantage over the normal idle loop.
- It may also interact badly with hyperthreading.
-
-Rebooting
-=========
-
- reboot=b[ios] | t[riple] | k[bd] | a[cpi] | e[fi] | p[ci] [, [w]arm | [c]old]
- bios
- Use the CPU reboot vector for warm reset
- warm
- Don't set the cold reboot flag
- cold
- Set the cold reboot flag
- triple
- Force a triple fault (init)
- kbd
- Use the keyboard controller. cold reset (default)
- acpi
- Use the ACPI RESET_REG in the FADT. If ACPI is not configured or
- the ACPI reset does not work, the reboot path attempts the reset
- using the keyboard controller.
- efi
- Use efi reset_system runtime service. If EFI is not configured or
- the EFI reset does not work, the reboot path attempts the reset using
- the keyboard controller.
- pci
- Use a write to the PCI config space register 0xcf9 to trigger reboot.
-
- Using warm reset will be much faster especially on big memory
- systems because the BIOS will not go through the memory check.
- Disadvantage is that not all hardware will be completely reinitialized
- on reboot so there may be boot problems on some systems.
-
- reboot=force
- Don't stop other CPUs on reboot. This can make reboot more reliable
- in some cases.
-
- reboot=default
- There are some built-in platform specific "quirks" - you may see:
- "reboot: <name> series board detected. Selecting <type> for reboots."
- In the case where you think the quirk is in error (e.g. you have
- newer BIOS, or newer board) using this option will ignore the built-in
- quirk table, and use the generic default reboot actions.
-
-NUMA
-====
-
- numa=off
- Only set up a single NUMA node spanning all memory.
-
- numa=noacpi
- Don't parse the SRAT table for NUMA setup
-
- numa=nohmat
- Don't parse the HMAT table for NUMA setup, or soft-reserved memory
- partitioning.
-
- numa=fake=<size>[MG]
- If given as a memory unit, fills all system RAM with nodes of
- size interleaved over physical nodes.
-
- numa=fake=<N>
- If given as an integer, fills all system RAM with N fake nodes
- interleaved over physical nodes.
-
- numa=fake=<N>U
- If given as an integer followed by 'U', it will divide each
- physical node into N emulated nodes.
-
-ACPI
-====
-
- acpi=off
- Don't enable ACPI
- acpi=ht
- Use ACPI boot table parsing, but don't enable ACPI interpreter
- acpi=force
- Force ACPI on (currently not needed)
- acpi=strict
- Disable out of spec ACPI workarounds.
- acpi_sci={edge,level,high,low}
- Set up ACPI SCI interrupt.
- acpi=noirq
- Don't route interrupts
- acpi=nocmcff
- Disable firmware first mode for corrected errors. This
- disables parsing the HEST CMC error source to check if
- firmware has set the FF flag. This may result in
- duplicate corrected error reports.
-
-PCI
-===
-
- pci=off
- Don't use PCI
- pci=conf1
- Use conf1 access.
- pci=conf2
- Use conf2 access.
- pci=rom
- Assign ROMs.
- pci=assign-busses
- Assign busses
- pci=irqmask=MASK
- Set PCI interrupt mask to MASK
- pci=lastbus=NUMBER
- Scan up to NUMBER busses, no matter what the mptable says.
- pci=noacpi
- Don't use ACPI to set up PCI interrupt routing.
-
-IOMMU (input/output memory management unit)
-===========================================
-Multiple x86-64 PCI-DMA mapping implementations exist, for example:
-
- 1. <kernel/dma/direct.c>: use no hardware/software IOMMU at all
- (e.g. because you have < 3 GB memory).
- Kernel boot message: "PCI-DMA: Disabling IOMMU"
-
- 2. <arch/x86/kernel/amd_gart_64.c>: AMD GART based hardware IOMMU.
- Kernel boot message: "PCI-DMA: using GART IOMMU"
-
- 3. <arch/x86_64/kernel/pci-swiotlb.c> : Software IOMMU implementation. Used
- e.g. if there is no hardware IOMMU in the system and it is need because
- you have >3GB memory or told the kernel to us it (iommu=soft))
- Kernel boot message: "PCI-DMA: Using software bounce buffering
- for IO (SWIOTLB)"
-
-::
-
- iommu=[<size>][,noagp][,off][,force][,noforce]
- [,memaper[=<order>]][,merge][,fullflush][,nomerge]
- [,noaperture]
-
-General iommu options:
-
- off
- Don't initialize and use any kind of IOMMU.
- noforce
- Don't force hardware IOMMU usage when it is not needed. (default).
- force
- Force the use of the hardware IOMMU even when it is
- not actually needed (e.g. because < 3 GB memory).
- soft
- Use software bounce buffering (SWIOTLB) (default for
- Intel machines). This can be used to prevent the usage
- of an available hardware IOMMU.
-
-iommu options only relevant to the AMD GART hardware IOMMU:
-
- <size>
- Set the size of the remapping area in bytes.
- allowed
- Overwrite iommu off workarounds for specific chipsets.
- fullflush
- Flush IOMMU on each allocation (default).
- nofullflush
- Don't use IOMMU fullflush.
- memaper[=<order>]
- Allocate an own aperture over RAM with size 32MB<<order.
- (default: order=1, i.e. 64MB)
- merge
- Do scatter-gather (SG) merging. Implies "force" (experimental).
- nomerge
- Don't do scatter-gather (SG) merging.
- noaperture
- Ask the IOMMU not to touch the aperture for AGP.
- noagp
- Don't initialize the AGP driver and use full aperture.
- panic
- Always panic when IOMMU overflows.
-
-iommu options only relevant to the software bounce buffering (SWIOTLB) IOMMU
-implementation:
-
- swiotlb=<slots>[,force,noforce]
- <slots>
- Prereserve that many 2K slots for the software IO bounce buffering.
- force
- Force all IO through the software TLB.
- noforce
- Do not initialize the software TLB.
-
-
-Miscellaneous
-=============
-
- nogbpages
- Do not use GB pages for kernel direct mappings.
- gbpages
- Use GB pages for kernel direct mappings.
-
-
-AMD SEV (Secure Encrypted Virtualization)
-=========================================
-Options relating to AMD SEV, specified via the following format:
-
-::
-
- sev=option1[,option2]
-
-The available options are:
-
- debug
- Enable debug messages.
diff --git a/Documentation/arch/x86/x86_64/fake-numa-for-cpusets.rst b/Documentation/arch/x86/x86_64/fake-numa-for-cpusets.rst
index ba74617d4999..970ee94eb551 100644
--- a/Documentation/arch/x86/x86_64/fake-numa-for-cpusets.rst
+++ b/Documentation/arch/x86/x86_64/fake-numa-for-cpusets.rst
@@ -18,7 +18,7 @@ For more information on the features of cpusets, see
Documentation/admin-guide/cgroup-v1/cpusets.rst.
There are a number of different configurations you can use for your needs. For
more information on the numa=fake command line option and its various ways of
-configuring fake nodes, see Documentation/arch/x86/x86_64/boot-options.rst.
+configuring fake nodes, see Documentation/admin-guide/kernel-parameters.txt
For the purposes of this introduction, we'll assume a very primitive NUMA
emulation setup of "numa=fake=4*512,". This will split our system memory into
diff --git a/Documentation/arch/x86/x86_64/fred.rst b/Documentation/arch/x86/x86_64/fred.rst
new file mode 100644
index 000000000000..9f57e7b91f7e
--- /dev/null
+++ b/Documentation/arch/x86/x86_64/fred.rst
@@ -0,0 +1,96 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=========================================
+Flexible Return and Event Delivery (FRED)
+=========================================
+
+Overview
+========
+
+The FRED architecture defines simple new transitions that change
+privilege level (ring transitions). The FRED architecture was
+designed with the following goals:
+
+1) Improve overall performance and response time by replacing event
+ delivery through the interrupt descriptor table (IDT event
+ delivery) and event return by the IRET instruction with lower
+ latency transitions.
+
+2) Improve software robustness by ensuring that event delivery
+ establishes the full supervisor context and that event return
+ establishes the full user context.
+
+The new transitions defined by the FRED architecture are FRED event
+delivery and, for returning from events, two FRED return instructions.
+FRED event delivery can effect a transition from ring 3 to ring 0, but
+it is used also to deliver events incident to ring 0. One FRED
+instruction (ERETU) effects a return from ring 0 to ring 3, while the
+other (ERETS) returns while remaining in ring 0. Collectively, FRED
+event delivery and the FRED return instructions are FRED transitions.
+
+In addition to these transitions, the FRED architecture defines a new
+instruction (LKGS) for managing the state of the GS segment register.
+The LKGS instruction can be used by 64-bit operating systems that do
+not use the new FRED transitions.
+
+Furthermore, the FRED architecture is easy to extend for future CPU
+architectures.
+
+Software based event dispatching
+================================
+
+FRED operates differently from IDT in terms of event handling. Instead
+of directly dispatching an event to its handler based on the event
+vector, FRED requires the software to dispatch an event to its handler
+based on both the event's type and vector. Therefore, an event dispatch
+framework must be implemented to facilitate the event-to-handler
+dispatch process. The FRED event dispatch framework takes control
+once an event is delivered, and employs a two-level dispatch.
+
+The first level dispatching is event type based, and the second level
+dispatching is event vector based.
+
+Full supervisor/user context
+============================
+
+FRED event delivery atomically save and restore full supervisor/user
+context upon event delivery and return. Thus it avoids the problem of
+transient states due to %cr2 and/or %dr6, and it is no longer needed
+to handle all the ugly corner cases caused by half baked entry states.
+
+FRED allows explicit unblock of NMI with new event return instructions
+ERETS/ERETU, avoiding the mess caused by IRET which unconditionally
+unblocks NMI, e.g., when an exception happens during NMI handling.
+
+FRED always restores the full value of %rsp, thus ESPFIX is no longer
+needed when FRED is enabled.
+
+LKGS
+====
+
+LKGS behaves like the MOV to GS instruction except that it loads the
+base address into the IA32_KERNEL_GS_BASE MSR instead of the GS
+segment’s descriptor cache. With LKGS, it ends up with avoiding
+mucking with kernel GS, i.e., an operating system can always operate
+with its own GS base address.
+
+Because FRED event delivery from ring 3 and ERETU both swap the value
+of the GS base address and that of the IA32_KERNEL_GS_BASE MSR, plus
+the introduction of LKGS instruction, the SWAPGS instruction is no
+longer needed when FRED is enabled, thus is disallowed (#UD).
+
+Stack levels
+============
+
+4 stack levels 0~3 are introduced to replace the nonreentrant IST for
+event handling, and each stack level should be configured to use a
+dedicated stack.
+
+The current stack level could be unchanged or go higher upon FRED
+event delivery. If unchanged, the CPU keeps using the current event
+stack. If higher, the CPU switches to a new event stack specified by
+the MSR of the new stack level, i.e., MSR_IA32_FRED_RSP[123].
+
+Only execution of a FRED return instruction ERET[US], could lower the
+current stack level, causing the CPU to switch back to the stack it was
+on before a previous event delivery that promoted the stack level.
diff --git a/Documentation/arch/x86/x86_64/fsgs.rst b/Documentation/arch/x86/x86_64/fsgs.rst
index 50960e09e1f6..6bda4d16d3f7 100644
--- a/Documentation/arch/x86/x86_64/fsgs.rst
+++ b/Documentation/arch/x86/x86_64/fsgs.rst
@@ -125,17 +125,17 @@ FSGSBASE instructions enablement
FSGSBASE instructions compiler support
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-GCC version 4.6.4 and newer provide instrinsics for the FSGSBASE
+GCC version 4.6.4 and newer provide intrinsics for the FSGSBASE
instructions. Clang 5 supports them as well.
=================== ===========================
_readfsbase_u64() Read the FS base register
- _readfsbase_u64() Read the GS base register
+ _readgsbase_u64() Read the GS base register
_writefsbase_u64() Write the FS base register
_writegsbase_u64() Write the GS base register
=================== ===========================
-To utilize these instrinsics <immintrin.h> must be included in the source
+To utilize these intrinsics <immintrin.h> must be included in the source
code and the compiler option -mfsgsbase has to be added.
Compiler support for FS/GS based addressing
diff --git a/Documentation/arch/x86/x86_64/index.rst b/Documentation/arch/x86/x86_64/index.rst
index a56070fc8e77..a0261957a08a 100644
--- a/Documentation/arch/x86/x86_64/index.rst
+++ b/Documentation/arch/x86/x86_64/index.rst
@@ -7,7 +7,6 @@ x86_64 Support
.. toctree::
:maxdepth: 2
- boot-options
uefi
mm
5level-paging
@@ -15,3 +14,4 @@ x86_64 Support
cpu-hotplug-spec
machinecheck
fsgs
+ fred
diff --git a/Documentation/arch/x86/x86_64/mm.rst b/Documentation/arch/x86/x86_64/mm.rst
index 35e5e18c83d0..a6cf05d51bd8 100644
--- a/Documentation/arch/x86/x86_64/mm.rst
+++ b/Documentation/arch/x86/x86_64/mm.rst
@@ -29,15 +29,27 @@ Complete virtual memory map with 4-level page tables
Start addr | Offset | End addr | Size | VM area description
========================================================================================================================
| | | |
- 0000000000000000 | 0 | 00007fffffffffff | 128 TB | user-space virtual memory, different per mm
+ 0000000000000000 | 0 | 00007fffffffefff | ~128 TB | user-space virtual memory, different per mm
+ 00007ffffffff000 | ~128 TB | 00007fffffffffff | 4 kB | ... guard hole
__________________|____________|__________________|_________|___________________________________________________________
| | | |
- 0000800000000000 | +128 TB | ffff7fffffffffff | ~16M TB | ... huge, almost 64 bits wide hole of non-canonical
- | | | | virtual memory addresses up to the -128 TB
+ 0000800000000000 | +128 TB | 7fffffffffffffff | ~8 EB | ... huge, almost 63 bits wide hole of non-canonical
+ | | | | virtual memory addresses up to the -8 EB
| | | | starting offset of kernel mappings.
+ | | | |
+ | | | | LAM relaxes canonicallity check allowing to create aliases
+ | | | | for userspace memory here.
__________________|____________|__________________|_________|___________________________________________________________
|
| Kernel-space virtual memory, shared between all processes:
+ __________________|____________|__________________|_________|___________________________________________________________
+ | | | |
+ 8000000000000000 | -8 EB | ffff7fffffffffff | ~8 EB | ... huge, almost 63 bits wide hole of non-canonical
+ | | | | virtual memory addresses up to the -128 TB
+ | | | | starting offset of kernel mappings.
+ | | | |
+ | | | | LAM_SUP relaxes canonicallity check allowing to create
+ | | | | aliases for kernel memory here.
____________________________________________________________|___________________________________________________________
| | | |
ffff800000000000 | -128 TB | ffff87ffffffffff | 8 TB | ... guard hole, also reserved for hypervisor
@@ -88,16 +100,27 @@ Complete virtual memory map with 5-level page tables
Start addr | Offset | End addr | Size | VM area description
========================================================================================================================
| | | |
- 0000000000000000 | 0 | 00ffffffffffffff | 64 PB | user-space virtual memory, different per mm
+ 0000000000000000 | 0 | 00fffffffffff000 | ~64 PB | user-space virtual memory, different per mm
+ 00fffffffffff000 | ~64 PB | 00ffffffffffffff | 4 kB | ... guard hole
__________________|____________|__________________|_________|___________________________________________________________
| | | |
- 0100000000000000 | +64 PB | feffffffffffffff | ~16K PB | ... huge, still almost 64 bits wide hole of non-canonical
- | | | | virtual memory addresses up to the -64 PB
+ 0100000000000000 | +64 PB | 7fffffffffffffff | ~8 EB | ... huge, almost 63 bits wide hole of non-canonical
+ | | | | virtual memory addresses up to the -8EB TB
| | | | starting offset of kernel mappings.
+ | | | |
+ | | | | LAM relaxes canonicallity check allowing to create aliases
+ | | | | for userspace memory here.
__________________|____________|__________________|_________|___________________________________________________________
|
| Kernel-space virtual memory, shared between all processes:
____________________________________________________________|___________________________________________________________
+ 8000000000000000 | -8 EB | feffffffffffffff | ~8 EB | ... huge, almost 63 bits wide hole of non-canonical
+ | | | | virtual memory addresses up to the -64 PB
+ | | | | starting offset of kernel mappings.
+ | | | |
+ | | | | LAM_SUP relaxes canonicallity check allowing to create
+ | | | | aliases for kernel memory here.
+ ____________________________________________________________|___________________________________________________________
| | | |
ff00000000000000 | -64 PB | ff0fffffffffffff | 4 PB | ... guard hole, also reserved for hypervisor
ff10000000000000 | -60 PB | ff10ffffffffffff | 0.25 PB | LDT remap for PTI
@@ -153,5 +176,5 @@ Be very careful vs. KASLR when changing anything here. The KASLR address
range must not overlap with anything except the KASAN shadow area, which is
correct as KASAN disables KASLR.
-For both 4- and 5-level layouts, the STACKLEAK_POISON value in the last 2MB
+For both 4- and 5-level layouts, the KSTACK_ERASE_POISON value in the last 2MB
hole: ffffffffffff4111
diff --git a/Documentation/arch/x86/x86_64/uefi.rst b/Documentation/arch/x86/x86_64/uefi.rst
index fbc30c9a071d..e84592dbd6c1 100644
--- a/Documentation/arch/x86/x86_64/uefi.rst
+++ b/Documentation/arch/x86/x86_64/uefi.rst
@@ -12,14 +12,20 @@ with EFI firmware and specifications are listed below.
1. UEFI specification: http://www.uefi.org
-2. Booting Linux kernel on UEFI x86_64 platform requires bootloader
- support. Elilo with x86_64 support can be used.
+2. Booting Linux kernel on UEFI x86_64 platform can either be
+ done using the <Documentation/admin-guide/efi-stub.rst> or using a
+ separate bootloader.
3. x86_64 platform with EFI/UEFI firmware.
Mechanics
---------
+Refer to <Documentation/admin-guide/efi-stub.rst> to learn how to use the EFI stub.
+
+Below are general EFI setup guidelines on the x86_64 platform,
+regardless of whether you use the EFI stub or a separate bootloader.
+
- Build the kernel with the following configuration::
CONFIG_FB_EFI=y
@@ -31,16 +37,27 @@ Mechanics
CONFIG_EFI=y
CONFIG_EFIVAR_FS=y or m # optional
-- Create a VFAT partition on the disk
-- Copy the following to the VFAT partition:
+- Create a VFAT partition on the disk with the EFI System flag
+ You can do this with fdisk with the following commands:
+
+ 1. g - initialize a GPT partition table
+ 2. n - create a new partition
+ 3. t - change the partition type to "EFI System" (number 1)
+ 4. w - write and save the changes
+
+ Afterwards, initialize the VFAT filesystem by running mkfs::
+
+ mkfs.fat /dev/<your-partition>
+
+- Copy the boot files to the VFAT partition:
+ If you use the EFI stub method, the kernel acts also as an EFI executable.
+
+ You can just copy the bzImage to the EFI/boot/bootx64.efi path on the partition
+ so that it will automatically get booted, see the <Documentation/admin-guide/efi-stub.rst> page
+ for additional instructions regarding passage of kernel parameters and initramfs.
- elilo bootloader with x86_64 support, elilo configuration file,
- kernel image built in first step and corresponding
- initrd. Instructions on building elilo and its dependencies
- can be found in the elilo sourceforge project.
+ If you use a custom bootloader, refer to the relevant documentation for help on this part.
-- Boot to EFI shell and invoke elilo choosing the kernel image built
- in first step.
- If some or all EFI runtime services don't work, you can try following
kernel command line parameters to turn off some or all EFI runtime
services.
diff --git a/Documentation/arch/x86/xstate.rst b/Documentation/arch/x86/xstate.rst
index ae5c69e48b11..cec05ac464c1 100644
--- a/Documentation/arch/x86/xstate.rst
+++ b/Documentation/arch/x86/xstate.rst
@@ -138,7 +138,7 @@ Note this example does not include the sigaltstack preparation.
Dynamic features in signal frames
---------------------------------
-Dynamcally enabled features are not written to the signal frame upon signal
+Dynamically enabled features are not written to the signal frame upon signal
entry if the feature is in its initial configuration. This differs from
non-dynamic features which are always written regardless of their
configuration. Signal handlers can examine the XSAVE buffer's XSTATE_BV
diff --git a/Documentation/arch/xtensa/atomctl.rst b/Documentation/arch/xtensa/atomctl.rst
index 1ecbd0ba9a2e..75d174169430 100644
--- a/Documentation/arch/xtensa/atomctl.rst
+++ b/Documentation/arch/xtensa/atomctl.rst
@@ -23,7 +23,7 @@ doing a Cached (WB) transaction and use the Memory RCW for un-cached
operations.
For systems without an coherent cache controller, non-MX, we always
-use the memory controllers RCW, thought non-MX controlers likely
+use the memory controllers RCW, though non-MX controllers likely
support the Internal Operation.
CUSTOMER-WARNING:
diff --git a/Documentation/arch/xtensa/features.rst b/Documentation/arch/xtensa/features.rst
index 6b92c7bfa19d..28dcce1759be 100644
--- a/Documentation/arch/xtensa/features.rst
+++ b/Documentation/arch/xtensa/features.rst
@@ -1,3 +1,3 @@
.. SPDX-License-Identifier: GPL-2.0
-.. kernel-feat:: $srctree/Documentation/features xtensa
+.. kernel-feat:: features xtensa
diff --git a/Documentation/arm/features.rst b/Documentation/arm/features.rst
deleted file mode 100644
index 7414ec03dd15..000000000000
--- a/Documentation/arm/features.rst
+++ /dev/null
@@ -1,3 +0,0 @@
-.. SPDX-License-Identifier: GPL-2.0
-
-.. kernel-feat:: $srctree/Documentation/features arm
diff --git a/Documentation/arm64/amu.rst b/Documentation/arm64/amu.rst
deleted file mode 100644
index 01f2de2b0450..000000000000
--- a/Documentation/arm64/amu.rst
+++ /dev/null
@@ -1,119 +0,0 @@
-.. _amu_index:
-
-=======================================================
-Activity Monitors Unit (AMU) extension in AArch64 Linux
-=======================================================
-
-Author: Ionela Voinescu <ionela.voinescu@arm.com>
-
-Date: 2019-09-10
-
-This document briefly describes the provision of Activity Monitors Unit
-support in AArch64 Linux.
-
-
-Architecture overview
----------------------
-
-The activity monitors extension is an optional extension introduced by the
-ARMv8.4 CPU architecture.
-
-The activity monitors unit, implemented in each CPU, provides performance
-counters intended for system management use. The AMU extension provides a
-system register interface to the counter registers and also supports an
-optional external memory-mapped interface.
-
-Version 1 of the Activity Monitors architecture implements a counter group
-of four fixed and architecturally defined 64-bit event counters.
-
- - CPU cycle counter: increments at the frequency of the CPU.
- - Constant counter: increments at the fixed frequency of the system
- clock.
- - Instructions retired: increments with every architecturally executed
- instruction.
- - Memory stall cycles: counts instruction dispatch stall cycles caused by
- misses in the last level cache within the clock domain.
-
-When in WFI or WFE these counters do not increment.
-
-The Activity Monitors architecture provides space for up to 16 architected
-event counters. Future versions of the architecture may use this space to
-implement additional architected event counters.
-
-Additionally, version 1 implements a counter group of up to 16 auxiliary
-64-bit event counters.
-
-On cold reset all counters reset to 0.
-
-
-Basic support
--------------
-
-The kernel can safely run a mix of CPUs with and without support for the
-activity monitors extension. Therefore, when CONFIG_ARM64_AMU_EXTN is
-selected we unconditionally enable the capability to allow any late CPU
-(secondary or hotplugged) to detect and use the feature.
-
-When the feature is detected on a CPU, we flag the availability of the
-feature but this does not guarantee the correct functionality of the
-counters, only the presence of the extension.
-
-Firmware (code running at higher exception levels, e.g. arm-tf) support is
-needed to:
-
- - Enable access for lower exception levels (EL2 and EL1) to the AMU
- registers.
- - Enable the counters. If not enabled these will read as 0.
- - Save/restore the counters before/after the CPU is being put/brought up
- from the 'off' power state.
-
-When using kernels that have this feature enabled but boot with broken
-firmware the user may experience panics or lockups when accessing the
-counter registers. Even if these symptoms are not observed, the values
-returned by the register reads might not correctly reflect reality. Most
-commonly, the counters will read as 0, indicating that they are not
-enabled.
-
-If proper support is not provided in firmware it's best to disable
-CONFIG_ARM64_AMU_EXTN. To be noted that for security reasons, this does not
-bypass the setting of AMUSERENR_EL0 to trap accesses from EL0 (userspace) to
-EL1 (kernel). Therefore, firmware should still ensure accesses to AMU registers
-are not trapped in EL2/EL3.
-
-The fixed counters of AMUv1 are accessible though the following system
-register definitions:
-
- - SYS_AMEVCNTR0_CORE_EL0
- - SYS_AMEVCNTR0_CONST_EL0
- - SYS_AMEVCNTR0_INST_RET_EL0
- - SYS_AMEVCNTR0_MEM_STALL_EL0
-
-Auxiliary platform specific counters can be accessed using
-SYS_AMEVCNTR1_EL0(n), where n is a value between 0 and 15.
-
-Details can be found in: arch/arm64/include/asm/sysreg.h.
-
-
-Userspace access
-----------------
-
-Currently, access from userspace to the AMU registers is disabled due to:
-
- - Security reasons: they might expose information about code executed in
- secure mode.
- - Purpose: AMU counters are intended for system management use.
-
-Also, the presence of the feature is not visible to userspace.
-
-
-Virtualization
---------------
-
-Currently, access from userspace (EL0) and kernelspace (EL1) on the KVM
-guest side is disabled due to:
-
- - Security reasons: they might expose information about code executed
- by other guests or the host.
-
-Any attempt to access the AMU registers will result in an UNDEFINED
-exception being injected into the guest.
diff --git a/Documentation/arm64/booting.rst b/Documentation/arm64/booting.rst
deleted file mode 100644
index ffeccdd6bdac..000000000000
--- a/Documentation/arm64/booting.rst
+++ /dev/null
@@ -1,431 +0,0 @@
-=====================
-Booting AArch64 Linux
-=====================
-
-Author: Will Deacon <will.deacon@arm.com>
-
-Date : 07 September 2012
-
-This document is based on the ARM booting document by Russell King and
-is relevant to all public releases of the AArch64 Linux kernel.
-
-The AArch64 exception model is made up of a number of exception levels
-(EL0 - EL3), with EL0, EL1 and EL2 having a secure and a non-secure
-counterpart. EL2 is the hypervisor level, EL3 is the highest priority
-level and exists only in secure mode. Both are architecturally optional.
-
-For the purposes of this document, we will use the term `boot loader`
-simply to define all software that executes on the CPU(s) before control
-is passed to the Linux kernel. This may include secure monitor and
-hypervisor code, or it may just be a handful of instructions for
-preparing a minimal boot environment.
-
-Essentially, the boot loader should provide (as a minimum) the
-following:
-
-1. Setup and initialise the RAM
-2. Setup the device tree
-3. Decompress the kernel image
-4. Call the kernel image
-
-
-1. Setup and initialise RAM
----------------------------
-
-Requirement: MANDATORY
-
-The boot loader is expected to find and initialise all RAM that the
-kernel will use for volatile data storage in the system. It performs
-this in a machine dependent manner. (It may use internal algorithms
-to automatically locate and size all RAM, or it may use knowledge of
-the RAM in the machine, or any other method the boot loader designer
-sees fit.)
-
-
-2. Setup the device tree
--------------------------
-
-Requirement: MANDATORY
-
-The device tree blob (dtb) must be placed on an 8-byte boundary and must
-not exceed 2 megabytes in size. Since the dtb will be mapped cacheable
-using blocks of up to 2 megabytes in size, it must not be placed within
-any 2M region which must be mapped with any specific attributes.
-
-NOTE: versions prior to v4.2 also require that the DTB be placed within
-the 512 MB region starting at text_offset bytes below the kernel Image.
-
-3. Decompress the kernel image
-------------------------------
-
-Requirement: OPTIONAL
-
-The AArch64 kernel does not currently provide a decompressor and
-therefore requires decompression (gzip etc.) to be performed by the boot
-loader if a compressed Image target (e.g. Image.gz) is used. For
-bootloaders that do not implement this requirement, the uncompressed
-Image target is available instead.
-
-
-4. Call the kernel image
-------------------------
-
-Requirement: MANDATORY
-
-The decompressed kernel image contains a 64-byte header as follows::
-
- u32 code0; /* Executable code */
- u32 code1; /* Executable code */
- u64 text_offset; /* Image load offset, little endian */
- u64 image_size; /* Effective Image size, little endian */
- u64 flags; /* kernel flags, little endian */
- u64 res2 = 0; /* reserved */
- u64 res3 = 0; /* reserved */
- u64 res4 = 0; /* reserved */
- u32 magic = 0x644d5241; /* Magic number, little endian, "ARM\x64" */
- u32 res5; /* reserved (used for PE COFF offset) */
-
-
-Header notes:
-
-- As of v3.17, all fields are little endian unless stated otherwise.
-
-- code0/code1 are responsible for branching to stext.
-
-- when booting through EFI, code0/code1 are initially skipped.
- res5 is an offset to the PE header and the PE header has the EFI
- entry point (efi_stub_entry). When the stub has done its work, it
- jumps to code0 to resume the normal boot process.
-
-- Prior to v3.17, the endianness of text_offset was not specified. In
- these cases image_size is zero and text_offset is 0x80000 in the
- endianness of the kernel. Where image_size is non-zero image_size is
- little-endian and must be respected. Where image_size is zero,
- text_offset can be assumed to be 0x80000.
-
-- The flags field (introduced in v3.17) is a little-endian 64-bit field
- composed as follows:
-
- ============= ===============================================================
- Bit 0 Kernel endianness. 1 if BE, 0 if LE.
- Bit 1-2 Kernel Page size.
-
- * 0 - Unspecified.
- * 1 - 4K
- * 2 - 16K
- * 3 - 64K
- Bit 3 Kernel physical placement
-
- 0
- 2MB aligned base should be as close as possible
- to the base of DRAM, since memory below it is not
- accessible via the linear mapping
- 1
- 2MB aligned base such that all image_size bytes
- counted from the start of the image are within
- the 48-bit addressable range of physical memory
- Bits 4-63 Reserved.
- ============= ===============================================================
-
-- When image_size is zero, a bootloader should attempt to keep as much
- memory as possible free for use by the kernel immediately after the
- end of the kernel image. The amount of space required will vary
- depending on selected features, and is effectively unbound.
-
-The Image must be placed text_offset bytes from a 2MB aligned base
-address anywhere in usable system RAM and called there. The region
-between the 2 MB aligned base address and the start of the image has no
-special significance to the kernel, and may be used for other purposes.
-At least image_size bytes from the start of the image must be free for
-use by the kernel.
-NOTE: versions prior to v4.6 cannot make use of memory below the
-physical offset of the Image so it is recommended that the Image be
-placed as close as possible to the start of system RAM.
-
-If an initrd/initramfs is passed to the kernel at boot, it must reside
-entirely within a 1 GB aligned physical memory window of up to 32 GB in
-size that fully covers the kernel Image as well.
-
-Any memory described to the kernel (even that below the start of the
-image) which is not marked as reserved from the kernel (e.g., with a
-memreserve region in the device tree) will be considered as available to
-the kernel.
-
-Before jumping into the kernel, the following conditions must be met:
-
-- Quiesce all DMA capable devices so that memory does not get
- corrupted by bogus network packets or disk data. This will save
- you many hours of debug.
-
-- Primary CPU general-purpose register settings:
-
- - x0 = physical address of device tree blob (dtb) in system RAM.
- - x1 = 0 (reserved for future use)
- - x2 = 0 (reserved for future use)
- - x3 = 0 (reserved for future use)
-
-- CPU mode
-
- All forms of interrupts must be masked in PSTATE.DAIF (Debug, SError,
- IRQ and FIQ).
- The CPU must be in non-secure state, either in EL2 (RECOMMENDED in order
- to have access to the virtualisation extensions), or in EL1.
-
-- Caches, MMUs
-
- The MMU must be off.
-
- The instruction cache may be on or off, and must not hold any stale
- entries corresponding to the loaded kernel image.
-
- The address range corresponding to the loaded kernel image must be
- cleaned to the PoC. In the presence of a system cache or other
- coherent masters with caches enabled, this will typically require
- cache maintenance by VA rather than set/way operations.
- System caches which respect the architected cache maintenance by VA
- operations must be configured and may be enabled.
- System caches which do not respect architected cache maintenance by VA
- operations (not recommended) must be configured and disabled.
-
-- Architected timers
-
- CNTFRQ must be programmed with the timer frequency and CNTVOFF must
- be programmed with a consistent value on all CPUs. If entering the
- kernel at EL1, CNTHCTL_EL2 must have EL1PCTEN (bit 0) set where
- available.
-
-- Coherency
-
- All CPUs to be booted by the kernel must be part of the same coherency
- domain on entry to the kernel. This may require IMPLEMENTATION DEFINED
- initialisation to enable the receiving of maintenance operations on
- each CPU.
-
-- System registers
-
- All writable architected system registers at or below the exception
- level where the kernel image will be entered must be initialised by
- software at a higher exception level to prevent execution in an UNKNOWN
- state.
-
- For all systems:
- - If EL3 is present:
-
- - SCR_EL3.FIQ must have the same value across all CPUs the kernel is
- executing on.
- - The value of SCR_EL3.FIQ must be the same as the one present at boot
- time whenever the kernel is executing.
-
- - If EL3 is present and the kernel is entered at EL2:
-
- - SCR_EL3.HCE (bit 8) must be initialised to 0b1.
-
- For systems with a GICv3 interrupt controller to be used in v3 mode:
- - If EL3 is present:
-
- - ICC_SRE_EL3.Enable (bit 3) must be initialised to 0b1.
- - ICC_SRE_EL3.SRE (bit 0) must be initialised to 0b1.
- - ICC_CTLR_EL3.PMHE (bit 6) must be set to the same value across
- all CPUs the kernel is executing on, and must stay constant
- for the lifetime of the kernel.
-
- - If the kernel is entered at EL1:
-
- - ICC.SRE_EL2.Enable (bit 3) must be initialised to 0b1
- - ICC_SRE_EL2.SRE (bit 0) must be initialised to 0b1.
-
- - The DT or ACPI tables must describe a GICv3 interrupt controller.
-
- For systems with a GICv3 interrupt controller to be used in
- compatibility (v2) mode:
-
- - If EL3 is present:
-
- ICC_SRE_EL3.SRE (bit 0) must be initialised to 0b0.
-
- - If the kernel is entered at EL1:
-
- ICC_SRE_EL2.SRE (bit 0) must be initialised to 0b0.
-
- - The DT or ACPI tables must describe a GICv2 interrupt controller.
-
- For CPUs with pointer authentication functionality:
-
- - If EL3 is present:
-
- - SCR_EL3.APK (bit 16) must be initialised to 0b1
- - SCR_EL3.API (bit 17) must be initialised to 0b1
-
- - If the kernel is entered at EL1:
-
- - HCR_EL2.APK (bit 40) must be initialised to 0b1
- - HCR_EL2.API (bit 41) must be initialised to 0b1
-
- For CPUs with Activity Monitors Unit v1 (AMUv1) extension present:
-
- - If EL3 is present:
-
- - CPTR_EL3.TAM (bit 30) must be initialised to 0b0
- - CPTR_EL2.TAM (bit 30) must be initialised to 0b0
- - AMCNTENSET0_EL0 must be initialised to 0b1111
- - AMCNTENSET1_EL0 must be initialised to a platform specific value
- having 0b1 set for the corresponding bit for each of the auxiliary
- counters present.
-
- - If the kernel is entered at EL1:
-
- - AMCNTENSET0_EL0 must be initialised to 0b1111
- - AMCNTENSET1_EL0 must be initialised to a platform specific value
- having 0b1 set for the corresponding bit for each of the auxiliary
- counters present.
-
- For CPUs with the Fine Grained Traps (FEAT_FGT) extension present:
-
- - If EL3 is present and the kernel is entered at EL2:
-
- - SCR_EL3.FGTEn (bit 27) must be initialised to 0b1.
-
- For CPUs with support for HCRX_EL2 (FEAT_HCX) present:
-
- - If EL3 is present and the kernel is entered at EL2:
-
- - SCR_EL3.HXEn (bit 38) must be initialised to 0b1.
-
- For CPUs with Advanced SIMD and floating point support:
-
- - If EL3 is present:
-
- - CPTR_EL3.TFP (bit 10) must be initialised to 0b0.
-
- - If EL2 is present and the kernel is entered at EL1:
-
- - CPTR_EL2.TFP (bit 10) must be initialised to 0b0.
-
- For CPUs with the Scalable Vector Extension (FEAT_SVE) present:
-
- - if EL3 is present:
-
- - CPTR_EL3.EZ (bit 8) must be initialised to 0b1.
-
- - ZCR_EL3.LEN must be initialised to the same value for all CPUs the
- kernel is executed on.
-
- - If the kernel is entered at EL1 and EL2 is present:
-
- - CPTR_EL2.TZ (bit 8) must be initialised to 0b0.
-
- - CPTR_EL2.ZEN (bits 17:16) must be initialised to 0b11.
-
- - ZCR_EL2.LEN must be initialised to the same value for all CPUs the
- kernel will execute on.
-
- For CPUs with the Scalable Matrix Extension (FEAT_SME):
-
- - If EL3 is present:
-
- - CPTR_EL3.ESM (bit 12) must be initialised to 0b1.
-
- - SCR_EL3.EnTP2 (bit 41) must be initialised to 0b1.
-
- - SMCR_EL3.LEN must be initialised to the same value for all CPUs the
- kernel will execute on.
-
- - If the kernel is entered at EL1 and EL2 is present:
-
- - CPTR_EL2.TSM (bit 12) must be initialised to 0b0.
-
- - CPTR_EL2.SMEN (bits 25:24) must be initialised to 0b11.
-
- - SCTLR_EL2.EnTP2 (bit 60) must be initialised to 0b1.
-
- - SMCR_EL2.LEN must be initialised to the same value for all CPUs the
- kernel will execute on.
-
- - HWFGRTR_EL2.nTPIDR2_EL0 (bit 55) must be initialised to 0b01.
-
- - HWFGWTR_EL2.nTPIDR2_EL0 (bit 55) must be initialised to 0b01.
-
- - HWFGRTR_EL2.nSMPRI_EL1 (bit 54) must be initialised to 0b01.
-
- - HWFGWTR_EL2.nSMPRI_EL1 (bit 54) must be initialised to 0b01.
-
- For CPUs with the Scalable Matrix Extension FA64 feature (FEAT_SME_FA64):
-
- - If EL3 is present:
-
- - SMCR_EL3.FA64 (bit 31) must be initialised to 0b1.
-
- - If the kernel is entered at EL1 and EL2 is present:
-
- - SMCR_EL2.FA64 (bit 31) must be initialised to 0b1.
-
- For CPUs with the Memory Tagging Extension feature (FEAT_MTE2):
-
- - If EL3 is present:
-
- - SCR_EL3.ATA (bit 26) must be initialised to 0b1.
-
- - If the kernel is entered at EL1 and EL2 is present:
-
- - HCR_EL2.ATA (bit 56) must be initialised to 0b1.
-
- For CPUs with the Scalable Matrix Extension version 2 (FEAT_SME2):
-
- - If EL3 is present:
-
- - SMCR_EL3.EZT0 (bit 30) must be initialised to 0b1.
-
- - If the kernel is entered at EL1 and EL2 is present:
-
- - SMCR_EL2.EZT0 (bit 30) must be initialised to 0b1.
-
-The requirements described above for CPU mode, caches, MMUs, architected
-timers, coherency and system registers apply to all CPUs. All CPUs must
-enter the kernel in the same exception level. Where the values documented
-disable traps it is permissible for these traps to be enabled so long as
-those traps are handled transparently by higher exception levels as though
-the values documented were set.
-
-The boot loader is expected to enter the kernel on each CPU in the
-following manner:
-
-- The primary CPU must jump directly to the first instruction of the
- kernel image. The device tree blob passed by this CPU must contain
- an 'enable-method' property for each cpu node. The supported
- enable-methods are described below.
-
- It is expected that the bootloader will generate these device tree
- properties and insert them into the blob prior to kernel entry.
-
-- CPUs with a "spin-table" enable-method must have a 'cpu-release-addr'
- property in their cpu node. This property identifies a
- naturally-aligned 64-bit zero-initalised memory location.
-
- These CPUs should spin outside of the kernel in a reserved area of
- memory (communicated to the kernel by a /memreserve/ region in the
- device tree) polling their cpu-release-addr location, which must be
- contained in the reserved region. A wfe instruction may be inserted
- to reduce the overhead of the busy-loop and a sev will be issued by
- the primary CPU. When a read of the location pointed to by the
- cpu-release-addr returns a non-zero value, the CPU must jump to this
- value. The value will be written as a single 64-bit little-endian
- value, so CPUs must convert the read value to their native endianness
- before jumping to it.
-
-- CPUs with a "psci" enable method should remain outside of
- the kernel (i.e. outside of the regions of memory described to the
- kernel in the memory node, or in a reserved area of memory described
- to the kernel by a /memreserve/ region in the device tree). The
- kernel will issue CPU_ON calls as described in ARM document number ARM
- DEN 0022A ("Power State Coordination Interface System Software on ARM
- processors") to bring CPUs into the kernel.
-
- The device tree should contain a 'psci' node, as described in
- Documentation/devicetree/bindings/arm/psci.yaml.
-
-- Secondary CPU general-purpose register settings
-
- - x0 = 0 (reserved for future use)
- - x1 = 0 (reserved for future use)
- - x2 = 0 (reserved for future use)
- - x3 = 0 (reserved for future use)
diff --git a/Documentation/arm64/elf_hwcaps.rst b/Documentation/arm64/elf_hwcaps.rst
deleted file mode 100644
index 83e57e4d38e2..000000000000
--- a/Documentation/arm64/elf_hwcaps.rst
+++ /dev/null
@@ -1,309 +0,0 @@
-.. _elf_hwcaps_index:
-
-================
-ARM64 ELF hwcaps
-================
-
-This document describes the usage and semantics of the arm64 ELF hwcaps.
-
-
-1. Introduction
----------------
-
-Some hardware or software features are only available on some CPU
-implementations, and/or with certain kernel configurations, but have no
-architected discovery mechanism available to userspace code at EL0. The
-kernel exposes the presence of these features to userspace through a set
-of flags called hwcaps, exposed in the auxiliary vector.
-
-Userspace software can test for features by acquiring the AT_HWCAP or
-AT_HWCAP2 entry of the auxiliary vector, and testing whether the relevant
-flags are set, e.g.::
-
- bool floating_point_is_present(void)
- {
- unsigned long hwcaps = getauxval(AT_HWCAP);
- if (hwcaps & HWCAP_FP)
- return true;
-
- return false;
- }
-
-Where software relies on a feature described by a hwcap, it should check
-the relevant hwcap flag to verify that the feature is present before
-attempting to make use of the feature.
-
-Features cannot be probed reliably through other means. When a feature
-is not available, attempting to use it may result in unpredictable
-behaviour, and is not guaranteed to result in any reliable indication
-that the feature is unavailable, such as a SIGILL.
-
-
-2. Interpretation of hwcaps
----------------------------
-
-The majority of hwcaps are intended to indicate the presence of features
-which are described by architected ID registers inaccessible to
-userspace code at EL0. These hwcaps are defined in terms of ID register
-fields, and should be interpreted with reference to the definition of
-these fields in the ARM Architecture Reference Manual (ARM ARM).
-
-Such hwcaps are described below in the form::
-
- Functionality implied by idreg.field == val.
-
-Such hwcaps indicate the availability of functionality that the ARM ARM
-defines as being present when idreg.field has value val, but do not
-indicate that idreg.field is precisely equal to val, nor do they
-indicate the absence of functionality implied by other values of
-idreg.field.
-
-Other hwcaps may indicate the presence of features which cannot be
-described by ID registers alone. These may be described without
-reference to ID registers, and may refer to other documentation.
-
-
-3. The hwcaps exposed in AT_HWCAP
----------------------------------
-
-HWCAP_FP
- Functionality implied by ID_AA64PFR0_EL1.FP == 0b0000.
-
-HWCAP_ASIMD
- Functionality implied by ID_AA64PFR0_EL1.AdvSIMD == 0b0000.
-
-HWCAP_EVTSTRM
- The generic timer is configured to generate events at a frequency of
- approximately 10KHz.
-
-HWCAP_AES
- Functionality implied by ID_AA64ISAR0_EL1.AES == 0b0001.
-
-HWCAP_PMULL
- Functionality implied by ID_AA64ISAR0_EL1.AES == 0b0010.
-
-HWCAP_SHA1
- Functionality implied by ID_AA64ISAR0_EL1.SHA1 == 0b0001.
-
-HWCAP_SHA2
- Functionality implied by ID_AA64ISAR0_EL1.SHA2 == 0b0001.
-
-HWCAP_CRC32
- Functionality implied by ID_AA64ISAR0_EL1.CRC32 == 0b0001.
-
-HWCAP_ATOMICS
- Functionality implied by ID_AA64ISAR0_EL1.Atomic == 0b0010.
-
-HWCAP_FPHP
- Functionality implied by ID_AA64PFR0_EL1.FP == 0b0001.
-
-HWCAP_ASIMDHP
- Functionality implied by ID_AA64PFR0_EL1.AdvSIMD == 0b0001.
-
-HWCAP_CPUID
- EL0 access to certain ID registers is available, to the extent
- described by Documentation/arm64/cpu-feature-registers.rst.
-
- These ID registers may imply the availability of features.
-
-HWCAP_ASIMDRDM
- Functionality implied by ID_AA64ISAR0_EL1.RDM == 0b0001.
-
-HWCAP_JSCVT
- Functionality implied by ID_AA64ISAR1_EL1.JSCVT == 0b0001.
-
-HWCAP_FCMA
- Functionality implied by ID_AA64ISAR1_EL1.FCMA == 0b0001.
-
-HWCAP_LRCPC
- Functionality implied by ID_AA64ISAR1_EL1.LRCPC == 0b0001.
-
-HWCAP_DCPOP
- Functionality implied by ID_AA64ISAR1_EL1.DPB == 0b0001.
-
-HWCAP_SHA3
- Functionality implied by ID_AA64ISAR0_EL1.SHA3 == 0b0001.
-
-HWCAP_SM3
- Functionality implied by ID_AA64ISAR0_EL1.SM3 == 0b0001.
-
-HWCAP_SM4
- Functionality implied by ID_AA64ISAR0_EL1.SM4 == 0b0001.
-
-HWCAP_ASIMDDP
- Functionality implied by ID_AA64ISAR0_EL1.DP == 0b0001.
-
-HWCAP_SHA512
- Functionality implied by ID_AA64ISAR0_EL1.SHA2 == 0b0010.
-
-HWCAP_SVE
- Functionality implied by ID_AA64PFR0_EL1.SVE == 0b0001.
-
-HWCAP_ASIMDFHM
- Functionality implied by ID_AA64ISAR0_EL1.FHM == 0b0001.
-
-HWCAP_DIT
- Functionality implied by ID_AA64PFR0_EL1.DIT == 0b0001.
-
-HWCAP_USCAT
- Functionality implied by ID_AA64MMFR2_EL1.AT == 0b0001.
-
-HWCAP_ILRCPC
- Functionality implied by ID_AA64ISAR1_EL1.LRCPC == 0b0010.
-
-HWCAP_FLAGM
- Functionality implied by ID_AA64ISAR0_EL1.TS == 0b0001.
-
-HWCAP_SSBS
- Functionality implied by ID_AA64PFR1_EL1.SSBS == 0b0010.
-
-HWCAP_SB
- Functionality implied by ID_AA64ISAR1_EL1.SB == 0b0001.
-
-HWCAP_PACA
- Functionality implied by ID_AA64ISAR1_EL1.APA == 0b0001 or
- ID_AA64ISAR1_EL1.API == 0b0001, as described by
- Documentation/arm64/pointer-authentication.rst.
-
-HWCAP_PACG
- Functionality implied by ID_AA64ISAR1_EL1.GPA == 0b0001 or
- ID_AA64ISAR1_EL1.GPI == 0b0001, as described by
- Documentation/arm64/pointer-authentication.rst.
-
-HWCAP2_DCPODP
- Functionality implied by ID_AA64ISAR1_EL1.DPB == 0b0010.
-
-HWCAP2_SVE2
- Functionality implied by ID_AA64ZFR0_EL1.SVEVer == 0b0001.
-
-HWCAP2_SVEAES
- Functionality implied by ID_AA64ZFR0_EL1.AES == 0b0001.
-
-HWCAP2_SVEPMULL
- Functionality implied by ID_AA64ZFR0_EL1.AES == 0b0010.
-
-HWCAP2_SVEBITPERM
- Functionality implied by ID_AA64ZFR0_EL1.BitPerm == 0b0001.
-
-HWCAP2_SVESHA3
- Functionality implied by ID_AA64ZFR0_EL1.SHA3 == 0b0001.
-
-HWCAP2_SVESM4
- Functionality implied by ID_AA64ZFR0_EL1.SM4 == 0b0001.
-
-HWCAP2_FLAGM2
- Functionality implied by ID_AA64ISAR0_EL1.TS == 0b0010.
-
-HWCAP2_FRINT
- Functionality implied by ID_AA64ISAR1_EL1.FRINTTS == 0b0001.
-
-HWCAP2_SVEI8MM
- Functionality implied by ID_AA64ZFR0_EL1.I8MM == 0b0001.
-
-HWCAP2_SVEF32MM
- Functionality implied by ID_AA64ZFR0_EL1.F32MM == 0b0001.
-
-HWCAP2_SVEF64MM
- Functionality implied by ID_AA64ZFR0_EL1.F64MM == 0b0001.
-
-HWCAP2_SVEBF16
- Functionality implied by ID_AA64ZFR0_EL1.BF16 == 0b0001.
-
-HWCAP2_I8MM
- Functionality implied by ID_AA64ISAR1_EL1.I8MM == 0b0001.
-
-HWCAP2_BF16
- Functionality implied by ID_AA64ISAR1_EL1.BF16 == 0b0001.
-
-HWCAP2_DGH
- Functionality implied by ID_AA64ISAR1_EL1.DGH == 0b0001.
-
-HWCAP2_RNG
- Functionality implied by ID_AA64ISAR0_EL1.RNDR == 0b0001.
-
-HWCAP2_BTI
- Functionality implied by ID_AA64PFR0_EL1.BT == 0b0001.
-
-HWCAP2_MTE
- Functionality implied by ID_AA64PFR1_EL1.MTE == 0b0010, as described
- by Documentation/arm64/memory-tagging-extension.rst.
-
-HWCAP2_ECV
- Functionality implied by ID_AA64MMFR0_EL1.ECV == 0b0001.
-
-HWCAP2_AFP
- Functionality implied by ID_AA64MFR1_EL1.AFP == 0b0001.
-
-HWCAP2_RPRES
- Functionality implied by ID_AA64ISAR2_EL1.RPRES == 0b0001.
-
-HWCAP2_MTE3
- Functionality implied by ID_AA64PFR1_EL1.MTE == 0b0011, as described
- by Documentation/arm64/memory-tagging-extension.rst.
-
-HWCAP2_SME
- Functionality implied by ID_AA64PFR1_EL1.SME == 0b0001, as described
- by Documentation/arm64/sme.rst.
-
-HWCAP2_SME_I16I64
- Functionality implied by ID_AA64SMFR0_EL1.I16I64 == 0b1111.
-
-HWCAP2_SME_F64F64
- Functionality implied by ID_AA64SMFR0_EL1.F64F64 == 0b1.
-
-HWCAP2_SME_I8I32
- Functionality implied by ID_AA64SMFR0_EL1.I8I32 == 0b1111.
-
-HWCAP2_SME_F16F32
- Functionality implied by ID_AA64SMFR0_EL1.F16F32 == 0b1.
-
-HWCAP2_SME_B16F32
- Functionality implied by ID_AA64SMFR0_EL1.B16F32 == 0b1.
-
-HWCAP2_SME_F32F32
- Functionality implied by ID_AA64SMFR0_EL1.F32F32 == 0b1.
-
-HWCAP2_SME_FA64
- Functionality implied by ID_AA64SMFR0_EL1.FA64 == 0b1.
-
-HWCAP2_WFXT
- Functionality implied by ID_AA64ISAR2_EL1.WFXT == 0b0010.
-
-HWCAP2_EBF16
- Functionality implied by ID_AA64ISAR1_EL1.BF16 == 0b0010.
-
-HWCAP2_SVE_EBF16
- Functionality implied by ID_AA64ZFR0_EL1.BF16 == 0b0010.
-
-HWCAP2_CSSC
- Functionality implied by ID_AA64ISAR2_EL1.CSSC == 0b0001.
-
-HWCAP2_RPRFM
- Functionality implied by ID_AA64ISAR2_EL1.RPRFM == 0b0001.
-
-HWCAP2_SVE2P1
- Functionality implied by ID_AA64ZFR0_EL1.SVEver == 0b0010.
-
-HWCAP2_SME2
- Functionality implied by ID_AA64SMFR0_EL1.SMEver == 0b0001.
-
-HWCAP2_SME2P1
- Functionality implied by ID_AA64SMFR0_EL1.SMEver == 0b0010.
-
-HWCAP2_SMEI16I32
- Functionality implied by ID_AA64SMFR0_EL1.I16I32 == 0b0101
-
-HWCAP2_SMEBI32I32
- Functionality implied by ID_AA64SMFR0_EL1.BI32I32 == 0b1
-
-HWCAP2_SMEB16B16
- Functionality implied by ID_AA64SMFR0_EL1.B16B16 == 0b1
-
-HWCAP2_SMEF16F16
- Functionality implied by ID_AA64SMFR0_EL1.F16F16 == 0b1
-
-4. Unused AT_HWCAP bits
------------------------
-
-For interoperation with userspace, the kernel guarantees that bits 62
-and 63 of AT_HWCAP will always be returned as 0.
diff --git a/Documentation/arm64/features.rst b/Documentation/arm64/features.rst
deleted file mode 100644
index dfa4cb3cd3ef..000000000000
--- a/Documentation/arm64/features.rst
+++ /dev/null
@@ -1,3 +0,0 @@
-.. SPDX-License-Identifier: GPL-2.0
-
-.. kernel-feat:: $srctree/Documentation/features arm64
diff --git a/Documentation/arm64/index.rst b/Documentation/arm64/index.rst
deleted file mode 100644
index ae21f8118830..000000000000
--- a/Documentation/arm64/index.rst
+++ /dev/null
@@ -1,36 +0,0 @@
-.. _arm64_index:
-
-==================
-ARM64 Architecture
-==================
-
-.. toctree::
- :maxdepth: 1
-
- acpi_object_usage
- amu
- arm-acpi
- asymmetric-32bit
- booting
- cpu-feature-registers
- elf_hwcaps
- hugetlbpage
- legacy_instructions
- memory
- memory-tagging-extension
- perf
- pointer-authentication
- silicon-errata
- sme
- sve
- tagged-address-abi
- tagged-pointers
-
- features
-
-.. only:: subproject and html
-
- Indices
- =======
-
- * :ref:`genindex`
diff --git a/Documentation/arm64/memory.rst b/Documentation/arm64/memory.rst
deleted file mode 100644
index 2a641ba7be3b..000000000000
--- a/Documentation/arm64/memory.rst
+++ /dev/null
@@ -1,167 +0,0 @@
-==============================
-Memory Layout on AArch64 Linux
-==============================
-
-Author: Catalin Marinas <catalin.marinas@arm.com>
-
-This document describes the virtual memory layout used by the AArch64
-Linux kernel. The architecture allows up to 4 levels of translation
-tables with a 4KB page size and up to 3 levels with a 64KB page size.
-
-AArch64 Linux uses either 3 levels or 4 levels of translation tables
-with the 4KB page configuration, allowing 39-bit (512GB) or 48-bit
-(256TB) virtual addresses, respectively, for both user and kernel. With
-64KB pages, only 2 levels of translation tables, allowing 42-bit (4TB)
-virtual address, are used but the memory layout is the same.
-
-ARMv8.2 adds optional support for Large Virtual Address space. This is
-only available when running with a 64KB page size and expands the
-number of descriptors in the first level of translation.
-
-User addresses have bits 63:48 set to 0 while the kernel addresses have
-the same bits set to 1. TTBRx selection is given by bit 63 of the
-virtual address. The swapper_pg_dir contains only kernel (global)
-mappings while the user pgd contains only user (non-global) mappings.
-The swapper_pg_dir address is written to TTBR1 and never written to
-TTBR0.
-
-
-AArch64 Linux memory layout with 4KB pages + 4 levels (48-bit)::
-
- Start End Size Use
- -----------------------------------------------------------------------
- 0000000000000000 0000ffffffffffff 256TB user
- ffff000000000000 ffff7fffffffffff 128TB kernel logical memory map
- [ffff600000000000 ffff7fffffffffff] 32TB [kasan shadow region]
- ffff800000000000 ffff800007ffffff 128MB modules
- ffff800008000000 fffffbffefffffff 124TB vmalloc
- fffffbfff0000000 fffffbfffdffffff 224MB fixed mappings (top down)
- fffffbfffe000000 fffffbfffe7fffff 8MB [guard region]
- fffffbfffe800000 fffffbffff7fffff 16MB PCI I/O space
- fffffbffff800000 fffffbffffffffff 8MB [guard region]
- fffffc0000000000 fffffdffffffffff 2TB vmemmap
- fffffe0000000000 ffffffffffffffff 2TB [guard region]
-
-
-AArch64 Linux memory layout with 64KB pages + 3 levels (52-bit with HW support)::
-
- Start End Size Use
- -----------------------------------------------------------------------
- 0000000000000000 000fffffffffffff 4PB user
- fff0000000000000 ffff7fffffffffff ~4PB kernel logical memory map
- [fffd800000000000 ffff7fffffffffff] 512TB [kasan shadow region]
- ffff800000000000 ffff800007ffffff 128MB modules
- ffff800008000000 fffffbffefffffff 124TB vmalloc
- fffffbfff0000000 fffffbfffdffffff 224MB fixed mappings (top down)
- fffffbfffe000000 fffffbfffe7fffff 8MB [guard region]
- fffffbfffe800000 fffffbffff7fffff 16MB PCI I/O space
- fffffbffff800000 fffffbffffffffff 8MB [guard region]
- fffffc0000000000 ffffffdfffffffff ~4TB vmemmap
- ffffffe000000000 ffffffffffffffff 128GB [guard region]
-
-
-Translation table lookup with 4KB pages::
-
- +--------+--------+--------+--------+--------+--------+--------+--------+
- |63 56|55 48|47 40|39 32|31 24|23 16|15 8|7 0|
- +--------+--------+--------+--------+--------+--------+--------+--------+
- | | | | | |
- | | | | | v
- | | | | | [11:0] in-page offset
- | | | | +-> [20:12] L3 index
- | | | +-----------> [29:21] L2 index
- | | +---------------------> [38:30] L1 index
- | +-------------------------------> [47:39] L0 index
- +-------------------------------------------------> [63] TTBR0/1
-
-
-Translation table lookup with 64KB pages::
-
- +--------+--------+--------+--------+--------+--------+--------+--------+
- |63 56|55 48|47 40|39 32|31 24|23 16|15 8|7 0|
- +--------+--------+--------+--------+--------+--------+--------+--------+
- | | | | |
- | | | | v
- | | | | [15:0] in-page offset
- | | | +----------> [28:16] L3 index
- | | +--------------------------> [41:29] L2 index
- | +-------------------------------> [47:42] L1 index (48-bit)
- | [51:42] L1 index (52-bit)
- +-------------------------------------------------> [63] TTBR0/1
-
-
-When using KVM without the Virtualization Host Extensions, the
-hypervisor maps kernel pages in EL2 at a fixed (and potentially
-random) offset from the linear mapping. See the kern_hyp_va macro and
-kvm_update_va_mask function for more details. MMIO devices such as
-GICv2 gets mapped next to the HYP idmap page, as do vectors when
-ARM64_SPECTRE_V3A is enabled for particular CPUs.
-
-When using KVM with the Virtualization Host Extensions, no additional
-mappings are created, since the host kernel runs directly in EL2.
-
-52-bit VA support in the kernel
--------------------------------
-If the ARMv8.2-LVA optional feature is present, and we are running
-with a 64KB page size; then it is possible to use 52-bits of address
-space for both userspace and kernel addresses. However, any kernel
-binary that supports 52-bit must also be able to fall back to 48-bit
-at early boot time if the hardware feature is not present.
-
-This fallback mechanism necessitates the kernel .text to be in the
-higher addresses such that they are invariant to 48/52-bit VAs. Due
-to the kasan shadow being a fraction of the entire kernel VA space,
-the end of the kasan shadow must also be in the higher half of the
-kernel VA space for both 48/52-bit. (Switching from 48-bit to 52-bit,
-the end of the kasan shadow is invariant and dependent on ~0UL,
-whilst the start address will "grow" towards the lower addresses).
-
-In order to optimise phys_to_virt and virt_to_phys, the PAGE_OFFSET
-is kept constant at 0xFFF0000000000000 (corresponding to 52-bit),
-this obviates the need for an extra variable read. The physvirt
-offset and vmemmap offsets are computed at early boot to enable
-this logic.
-
-As a single binary will need to support both 48-bit and 52-bit VA
-spaces, the VMEMMAP must be sized large enough for 52-bit VAs and
-also must be sized large enough to accommodate a fixed PAGE_OFFSET.
-
-Most code in the kernel should not need to consider the VA_BITS, for
-code that does need to know the VA size the variables are
-defined as follows:
-
-VA_BITS constant the *maximum* VA space size
-
-VA_BITS_MIN constant the *minimum* VA space size
-
-vabits_actual variable the *actual* VA space size
-
-
-Maximum and minimum sizes can be useful to ensure that buffers are
-sized large enough or that addresses are positioned close enough for
-the "worst" case.
-
-52-bit userspace VAs
---------------------
-To maintain compatibility with software that relies on the ARMv8.0
-VA space maximum size of 48-bits, the kernel will, by default,
-return virtual addresses to userspace from a 48-bit range.
-
-Software can "opt-in" to receiving VAs from a 52-bit space by
-specifying an mmap hint parameter that is larger than 48-bit.
-
-For example:
-
-.. code-block:: c
-
- maybe_high_address = mmap(~0UL, size, prot, flags,...);
-
-It is also possible to build a debug kernel that returns addresses
-from a 52-bit space by enabling the following kernel config options:
-
-.. code-block:: sh
-
- CONFIG_EXPERT=y && CONFIG_ARM64_FORCE_52BIT=y
-
-Note that this option is only intended for debugging applications
-and should not be used in production.
diff --git a/Documentation/arm64/perf.rst b/Documentation/arm64/perf.rst
deleted file mode 100644
index 1f87b57c2332..000000000000
--- a/Documentation/arm64/perf.rst
+++ /dev/null
@@ -1,166 +0,0 @@
-.. SPDX-License-Identifier: GPL-2.0
-
-.. _perf_index:
-
-====
-Perf
-====
-
-Perf Event Attributes
-=====================
-
-:Author: Andrew Murray <andrew.murray@arm.com>
-:Date: 2019-03-06
-
-exclude_user
-------------
-
-This attribute excludes userspace.
-
-Userspace always runs at EL0 and thus this attribute will exclude EL0.
-
-
-exclude_kernel
---------------
-
-This attribute excludes the kernel.
-
-The kernel runs at EL2 with VHE and EL1 without. Guest kernels always run
-at EL1.
-
-For the host this attribute will exclude EL1 and additionally EL2 on a VHE
-system.
-
-For the guest this attribute will exclude EL1. Please note that EL2 is
-never counted within a guest.
-
-
-exclude_hv
-----------
-
-This attribute excludes the hypervisor.
-
-For a VHE host this attribute is ignored as we consider the host kernel to
-be the hypervisor.
-
-For a non-VHE host this attribute will exclude EL2 as we consider the
-hypervisor to be any code that runs at EL2 which is predominantly used for
-guest/host transitions.
-
-For the guest this attribute has no effect. Please note that EL2 is
-never counted within a guest.
-
-
-exclude_host / exclude_guest
-----------------------------
-
-These attributes exclude the KVM host and guest, respectively.
-
-The KVM host may run at EL0 (userspace), EL1 (non-VHE kernel) and EL2 (VHE
-kernel or non-VHE hypervisor).
-
-The KVM guest may run at EL0 (userspace) and EL1 (kernel).
-
-Due to the overlapping exception levels between host and guests we cannot
-exclusively rely on the PMU's hardware exception filtering - therefore we
-must enable/disable counting on the entry and exit to the guest. This is
-performed differently on VHE and non-VHE systems.
-
-For non-VHE systems we exclude EL2 for exclude_host - upon entering and
-exiting the guest we disable/enable the event as appropriate based on the
-exclude_host and exclude_guest attributes.
-
-For VHE systems we exclude EL1 for exclude_guest and exclude both EL0,EL2
-for exclude_host. Upon entering and exiting the guest we modify the event
-to include/exclude EL0 as appropriate based on the exclude_host and
-exclude_guest attributes.
-
-The statements above also apply when these attributes are used within a
-non-VHE guest however please note that EL2 is never counted within a guest.
-
-
-Accuracy
---------
-
-On non-VHE hosts we enable/disable counters on the entry/exit of host/guest
-transition at EL2 - however there is a period of time between
-enabling/disabling the counters and entering/exiting the guest. We are
-able to eliminate counters counting host events on the boundaries of guest
-entry/exit when counting guest events by filtering out EL2 for
-exclude_host. However when using !exclude_hv there is a small blackout
-window at the guest entry/exit where host events are not captured.
-
-On VHE systems there are no blackout windows.
-
-Perf Userspace PMU Hardware Counter Access
-==========================================
-
-Overview
---------
-The perf userspace tool relies on the PMU to monitor events. It offers an
-abstraction layer over the hardware counters since the underlying
-implementation is cpu-dependent.
-Arm64 allows userspace tools to have access to the registers storing the
-hardware counters' values directly.
-
-This targets specifically self-monitoring tasks in order to reduce the overhead
-by directly accessing the registers without having to go through the kernel.
-
-How-to
-------
-The focus is set on the armv8 PMUv3 which makes sure that the access to the pmu
-registers is enabled and that the userspace has access to the relevant
-information in order to use them.
-
-In order to have access to the hardware counters, the global sysctl
-kernel/perf_user_access must first be enabled:
-
-.. code-block:: sh
-
- echo 1 > /proc/sys/kernel/perf_user_access
-
-It is necessary to open the event using the perf tool interface with config1:1
-attr bit set: the sys_perf_event_open syscall returns a fd which can
-subsequently be used with the mmap syscall in order to retrieve a page of memory
-containing information about the event. The PMU driver uses this page to expose
-to the user the hardware counter's index and other necessary data. Using this
-index enables the user to access the PMU registers using the `mrs` instruction.
-Access to the PMU registers is only valid while the sequence lock is unchanged.
-In particular, the PMSELR_EL0 register is zeroed each time the sequence lock is
-changed.
-
-The userspace access is supported in libperf using the perf_evsel__mmap()
-and perf_evsel__read() functions. See `tools/lib/perf/tests/test-evsel.c`_ for
-an example.
-
-About heterogeneous systems
----------------------------
-On heterogeneous systems such as big.LITTLE, userspace PMU counter access can
-only be enabled when the tasks are pinned to a homogeneous subset of cores and
-the corresponding PMU instance is opened by specifying the 'type' attribute.
-The use of generic event types is not supported in this case.
-
-Have a look at `tools/perf/arch/arm64/tests/user-events.c`_ for an example. It
-can be run using the perf tool to check that the access to the registers works
-correctly from userspace:
-
-.. code-block:: sh
-
- perf test -v user
-
-About chained events and counter sizes
---------------------------------------
-The user can request either a 32-bit (config1:0 == 0) or 64-bit (config1:0 == 1)
-counter along with userspace access. The sys_perf_event_open syscall will fail
-if a 64-bit counter is requested and the hardware doesn't support 64-bit
-counters. Chained events are not supported in conjunction with userspace counter
-access. If a 32-bit counter is requested on hardware with 64-bit counters, then
-userspace must treat the upper 32-bits read from the counter as UNKNOWN. The
-'pmc_width' field in the user page will indicate the valid width of the counter
-and should be used to mask the upper bits as needed.
-
-.. Links
-.. _tools/perf/arch/arm64/tests/user-events.c:
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/tools/perf/arch/arm64/tests/user-events.c
-.. _tools/lib/perf/tests/test-evsel.c:
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/tools/lib/perf/tests/test-evsel.c
diff --git a/Documentation/arm64/silicon-errata.rst b/Documentation/arm64/silicon-errata.rst
deleted file mode 100644
index 9e311bc43e05..000000000000
--- a/Documentation/arm64/silicon-errata.rst
+++ /dev/null
@@ -1,216 +0,0 @@
-=======================================
-Silicon Errata and Software Workarounds
-=======================================
-
-Author: Will Deacon <will.deacon@arm.com>
-
-Date : 27 November 2015
-
-It is an unfortunate fact of life that hardware is often produced with
-so-called "errata", which can cause it to deviate from the architecture
-under specific circumstances. For hardware produced by ARM, these
-errata are broadly classified into the following categories:
-
- ========== ========================================================
- Category A A critical error without a viable workaround.
- Category B A significant or critical error with an acceptable
- workaround.
- Category C A minor error that is not expected to occur under normal
- operation.
- ========== ========================================================
-
-For more information, consult one of the "Software Developers Errata
-Notice" documents available on infocenter.arm.com (registration
-required).
-
-As far as Linux is concerned, Category B errata may require some special
-treatment in the operating system. For example, avoiding a particular
-sequence of code, or configuring the processor in a particular way. A
-less common situation may require similar actions in order to declassify
-a Category A erratum into a Category C erratum. These are collectively
-known as "software workarounds" and are only required in the minority of
-cases (e.g. those cases that both require a non-secure workaround *and*
-can be triggered by Linux).
-
-For software workarounds that may adversely impact systems unaffected by
-the erratum in question, a Kconfig entry is added under "Kernel
-Features" -> "ARM errata workarounds via the alternatives framework".
-These are enabled by default and patched in at runtime when an affected
-CPU is detected. For less-intrusive workarounds, a Kconfig option is not
-available and the code is structured (preferably with a comment) in such
-a way that the erratum will not be hit.
-
-This approach can make it slightly onerous to determine exactly which
-errata are worked around in an arbitrary kernel source tree, so this
-file acts as a registry of software workarounds in the Linux Kernel and
-will be updated when new workarounds are committed and backported to
-stable kernels.
-
-+----------------+-----------------+-----------------+-----------------------------+
-| Implementor | Component | Erratum ID | Kconfig |
-+================+=================+=================+=============================+
-| Allwinner | A64/R18 | UNKNOWN1 | SUN50I_ERRATUM_UNKNOWN1 |
-+----------------+-----------------+-----------------+-----------------------------+
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM | Cortex-A510 | #2457168 | ARM64_ERRATUM_2457168 |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM | Cortex-A510 | #2064142 | ARM64_ERRATUM_2064142 |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM | Cortex-A510 | #2038923 | ARM64_ERRATUM_2038923 |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM | Cortex-A510 | #1902691 | ARM64_ERRATUM_1902691 |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM | Cortex-A53 | #826319 | ARM64_ERRATUM_826319 |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM | Cortex-A53 | #827319 | ARM64_ERRATUM_827319 |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM | Cortex-A53 | #824069 | ARM64_ERRATUM_824069 |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM | Cortex-A53 | #819472 | ARM64_ERRATUM_819472 |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM | Cortex-A53 | #845719 | ARM64_ERRATUM_845719 |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM | Cortex-A53 | #843419 | ARM64_ERRATUM_843419 |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM | Cortex-A55 | #1024718 | ARM64_ERRATUM_1024718 |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM | Cortex-A55 | #1530923 | ARM64_ERRATUM_1530923 |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM | Cortex-A55 | #2441007 | ARM64_ERRATUM_2441007 |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM | Cortex-A57 | #832075 | ARM64_ERRATUM_832075 |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM | Cortex-A57 | #852523 | N/A |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM | Cortex-A57 | #834220 | ARM64_ERRATUM_834220 |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM | Cortex-A57 | #1319537 | ARM64_ERRATUM_1319367 |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM | Cortex-A57 | #1742098 | ARM64_ERRATUM_1742098 |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM | Cortex-A72 | #853709 | N/A |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM | Cortex-A72 | #1319367 | ARM64_ERRATUM_1319367 |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM | Cortex-A72 | #1655431 | ARM64_ERRATUM_1742098 |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM | Cortex-A73 | #858921 | ARM64_ERRATUM_858921 |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM | Cortex-A76 | #1188873,1418040| ARM64_ERRATUM_1418040 |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM | Cortex-A76 | #1165522 | ARM64_ERRATUM_1165522 |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM | Cortex-A76 | #1286807 | ARM64_ERRATUM_1286807 |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM | Cortex-A76 | #1463225 | ARM64_ERRATUM_1463225 |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM | Cortex-A77 | #1508412 | ARM64_ERRATUM_1508412 |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM | Cortex-A510 | #2051678 | ARM64_ERRATUM_2051678 |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM | Cortex-A510 | #2077057 | ARM64_ERRATUM_2077057 |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM | Cortex-A510 | #2441009 | ARM64_ERRATUM_2441009 |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM | Cortex-A510 | #2658417 | ARM64_ERRATUM_2658417 |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM | Cortex-A710 | #2119858 | ARM64_ERRATUM_2119858 |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM | Cortex-A710 | #2054223 | ARM64_ERRATUM_2054223 |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM | Cortex-A710 | #2224489 | ARM64_ERRATUM_2224489 |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM | Cortex-A715 | #2645198 | ARM64_ERRATUM_2645198 |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM | Cortex-X2 | #2119858 | ARM64_ERRATUM_2119858 |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM | Cortex-X2 | #2224489 | ARM64_ERRATUM_2224489 |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM | Neoverse-N1 | #1188873,1418040| ARM64_ERRATUM_1418040 |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM | Neoverse-N1 | #1349291 | N/A |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM | Neoverse-N1 | #1542419 | ARM64_ERRATUM_1542419 |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM | Neoverse-N2 | #2139208 | ARM64_ERRATUM_2139208 |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM | Neoverse-N2 | #2067961 | ARM64_ERRATUM_2067961 |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM | Neoverse-N2 | #2253138 | ARM64_ERRATUM_2253138 |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM | MMU-500 | #841119,826419 | N/A |
-+----------------+-----------------+-----------------+-----------------------------+
-+----------------+-----------------+-----------------+-----------------------------+
-| Broadcom | Brahma-B53 | N/A | ARM64_ERRATUM_845719 |
-+----------------+-----------------+-----------------+-----------------------------+
-| Broadcom | Brahma-B53 | N/A | ARM64_ERRATUM_843419 |
-+----------------+-----------------+-----------------+-----------------------------+
-+----------------+-----------------+-----------------+-----------------------------+
-| Cavium | ThunderX ITS | #22375,24313 | CAVIUM_ERRATUM_22375 |
-+----------------+-----------------+-----------------+-----------------------------+
-| Cavium | ThunderX ITS | #23144 | CAVIUM_ERRATUM_23144 |
-+----------------+-----------------+-----------------+-----------------------------+
-| Cavium | ThunderX GICv3 | #23154,38545 | CAVIUM_ERRATUM_23154 |
-+----------------+-----------------+-----------------+-----------------------------+
-| Cavium | ThunderX GICv3 | #38539 | N/A |
-+----------------+-----------------+-----------------+-----------------------------+
-| Cavium | ThunderX Core | #27456 | CAVIUM_ERRATUM_27456 |
-+----------------+-----------------+-----------------+-----------------------------+
-| Cavium | ThunderX Core | #30115 | CAVIUM_ERRATUM_30115 |
-+----------------+-----------------+-----------------+-----------------------------+
-| Cavium | ThunderX SMMUv2 | #27704 | N/A |
-+----------------+-----------------+-----------------+-----------------------------+
-| Cavium | ThunderX2 SMMUv3| #74 | N/A |
-+----------------+-----------------+-----------------+-----------------------------+
-| Cavium | ThunderX2 SMMUv3| #126 | N/A |
-+----------------+-----------------+-----------------+-----------------------------+
-| Cavium | ThunderX2 Core | #219 | CAVIUM_TX2_ERRATUM_219 |
-+----------------+-----------------+-----------------+-----------------------------+
-+----------------+-----------------+-----------------+-----------------------------+
-| Marvell | ARM-MMU-500 | #582743 | N/A |
-+----------------+-----------------+-----------------+-----------------------------+
-+----------------+-----------------+-----------------+-----------------------------+
-| NVIDIA | Carmel Core | N/A | NVIDIA_CARMEL_CNP_ERRATUM |
-+----------------+-----------------+-----------------+-----------------------------+
-| NVIDIA | T241 GICv3/4.x | T241-FABRIC-4 | N/A |
-+----------------+-----------------+-----------------+-----------------------------+
-+----------------+-----------------+-----------------+-----------------------------+
-| Freescale/NXP | LS2080A/LS1043A | A-008585 | FSL_ERRATUM_A008585 |
-+----------------+-----------------+-----------------+-----------------------------+
-+----------------+-----------------+-----------------+-----------------------------+
-| Hisilicon | Hip0{5,6,7} | #161010101 | HISILICON_ERRATUM_161010101 |
-+----------------+-----------------+-----------------+-----------------------------+
-| Hisilicon | Hip0{6,7} | #161010701 | N/A |
-+----------------+-----------------+-----------------+-----------------------------+
-| Hisilicon | Hip0{6,7} | #161010803 | N/A |
-+----------------+-----------------+-----------------+-----------------------------+
-| Hisilicon | Hip07 | #161600802 | HISILICON_ERRATUM_161600802 |
-+----------------+-----------------+-----------------+-----------------------------+
-| Hisilicon | Hip08 SMMU PMCG | #162001800 | N/A |
-+----------------+-----------------+-----------------+-----------------------------+
-+----------------+-----------------+-----------------+-----------------------------+
-| Qualcomm Tech. | Kryo/Falkor v1 | E1003 | QCOM_FALKOR_ERRATUM_1003 |
-+----------------+-----------------+-----------------+-----------------------------+
-| Qualcomm Tech. | Kryo/Falkor v1 | E1009 | QCOM_FALKOR_ERRATUM_1009 |
-+----------------+-----------------+-----------------+-----------------------------+
-| Qualcomm Tech. | QDF2400 ITS | E0065 | QCOM_QDF2400_ERRATUM_0065 |
-+----------------+-----------------+-----------------+-----------------------------+
-| Qualcomm Tech. | Falkor v{1,2} | E1041 | QCOM_FALKOR_ERRATUM_1041 |
-+----------------+-----------------+-----------------+-----------------------------+
-| Qualcomm Tech. | Kryo4xx Gold | N/A | ARM64_ERRATUM_1463225 |
-+----------------+-----------------+-----------------+-----------------------------+
-| Qualcomm Tech. | Kryo4xx Gold | N/A | ARM64_ERRATUM_1418040 |
-+----------------+-----------------+-----------------+-----------------------------+
-| Qualcomm Tech. | Kryo4xx Silver | N/A | ARM64_ERRATUM_1530923 |
-+----------------+-----------------+-----------------+-----------------------------+
-| Qualcomm Tech. | Kryo4xx Silver | N/A | ARM64_ERRATUM_1024718 |
-+----------------+-----------------+-----------------+-----------------------------+
-| Qualcomm Tech. | Kryo4xx Gold | N/A | ARM64_ERRATUM_1286807 |
-+----------------+-----------------+-----------------+-----------------------------+
-+----------------+-----------------+-----------------+-----------------------------+
-| Rockchip | RK3588 | #3588001 | ROCKCHIP_ERRATUM_3588001 |
-+----------------+-----------------+-----------------+-----------------------------+
-
-+----------------+-----------------+-----------------+-----------------------------+
-| Fujitsu | A64FX | E#010001 | FUJITSU_ERRATUM_010001 |
-+----------------+-----------------+-----------------+-----------------------------+
diff --git a/Documentation/atomic_t.txt b/Documentation/atomic_t.txt
index d7adc6d543db..bee3b1bca9a7 100644
--- a/Documentation/atomic_t.txt
+++ b/Documentation/atomic_t.txt
@@ -171,14 +171,14 @@ The rule of thumb:
- RMW operations that are conditional are unordered on FAILURE,
otherwise the above rules apply.
-Except of course when an operation has an explicit ordering like:
+Except of course when a successful operation has an explicit ordering like:
{}_relaxed: unordered
{}_acquire: the R of the RMW (or atomic_read) is an ACQUIRE
{}_release: the W of the RMW (or atomic_set) is a RELEASE
Where 'unordered' is against other memory locations. Address dependencies are
-not defeated.
+not defeated. Conditional operations are still unordered on FAILURE.
Fully ordered primitives are ordered against everything prior and everything
subsequent. Therefore a fully ordered primitive is like having an smp_mb()
diff --git a/Documentation/block/bfq-iosched.rst b/Documentation/block/bfq-iosched.rst
index df3a8a47f58c..a0ff0eb11e7f 100644
--- a/Documentation/block/bfq-iosched.rst
+++ b/Documentation/block/bfq-iosched.rst
@@ -9,7 +9,7 @@ controllers), BFQ's main features are:
- BFQ guarantees a high system and application responsiveness, and a
low latency for time-sensitive applications, such as audio or video
players;
-- BFQ distributes bandwidth, and not just time, among processes or
+- BFQ distributes bandwidth, not just time, among processes or
groups (switching back to time distribution when needed to keep
throughput high).
@@ -111,7 +111,7 @@ Higher speed for code-development tasks
If some additional workload happens to be executed in parallel, then
BFQ executes the I/O-related components of typical code-development
-tasks (compilation, checkout, merge, ...) much more quickly than CFQ,
+tasks (compilation, checkout, merge, etc.) much more quickly than CFQ,
NOOP or DEADLINE.
High throughput
@@ -127,9 +127,9 @@ Strong fairness, bandwidth and delay guarantees
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
BFQ distributes the device throughput, and not just the device time,
-among I/O-bound applications in proportion their weights, with any
+among I/O-bound applications in proportion to their weights, with any
workload and regardless of the device parameters. From these bandwidth
-guarantees, it is possible to compute tight per-I/O-request delay
+guarantees, it is possible to compute a tight per-I/O-request delay
guarantees by a simple formula. If not configured for strict service
guarantees, BFQ switches to time-based resource sharing (only) for
applications that would otherwise cause a throughput loss.
@@ -199,7 +199,7 @@ plus a lot of code, are borrowed from CFQ.
- On flash-based storage with internal queueing of commands
(typically NCQ), device idling happens to be always detrimental
- for throughput. So, with these devices, BFQ performs idling
+ to throughput. So, with these devices, BFQ performs idling
only when strictly needed for service guarantees, i.e., for
guaranteeing low latency or fairness. In these cases, overall
throughput may be sub-optimal. No solution currently exists to
@@ -212,7 +212,7 @@ plus a lot of code, are borrowed from CFQ.
and to reduce their latency. The most important action taken to
achieve this goal is to give to the queues associated with these
applications more than their fair share of the device
- throughput. For brevity, we call just "weight-raising" the whole
+ throughput. For brevity, we call it just "weight-raising" the whole
sets of actions taken by BFQ to privilege these queues. In
particular, BFQ provides a milder form of weight-raising for
interactive applications, and a stronger form for soft real-time
@@ -231,7 +231,7 @@ plus a lot of code, are borrowed from CFQ.
responsive in detecting interleaved I/O (cooperating processes),
that it enables BFQ to achieve a high throughput, by queue
merging, even for queues for which CFQ needs a different
- mechanism, preemption, to get a high throughput. As such EQM is a
+ mechanism, preemption, to get a high throughput. As such, EQM is a
unified mechanism to achieve a high throughput with interleaved
I/O.
@@ -254,7 +254,7 @@ plus a lot of code, are borrowed from CFQ.
- First, with any proportional-share scheduler, the maximum
deviation with respect to an ideal service is proportional to
the maximum budget (slice) assigned to queues. As a consequence,
- BFQ can keep this deviation tight not only because of the
+ BFQ can keep this deviation tight, not only because of the
accurate service of B-WF2Q+, but also because BFQ *does not*
need to assign a larger budget to a queue to let the queue
receive a higher fraction of the device throughput.
@@ -327,7 +327,7 @@ applications. Unset this tunable if you need/want to control weights.
slice_idle
----------
-This parameter specifies how long BFQ should idle for next I/O
+This parameter specifies how long BFQ should idle for the next I/O
request, when certain sync BFQ queues become empty. By default
slice_idle is a non-zero value. Idling has a double purpose: boosting
throughput and making sure that the desired throughput distribution is
@@ -365,7 +365,7 @@ terms of I/O-request dispatches. To guarantee that the actual service
order then corresponds to the dispatch order, the strict_guarantees
tunable must be set too.
-There is an important flipside for idling: apart from the above cases
+There is an important flip side to idling: apart from the above cases
where it is beneficial also for throughput, idling can severely impact
throughput. One important case is random workload. Because of this
issue, BFQ tends to avoid idling as much as possible, when it is not
@@ -475,7 +475,7 @@ max_budget
Maximum amount of service, measured in sectors, that can be provided
to a BFQ queue once it is set in service (of course within the limits
-of the above timeout). According to what said in the description of
+of the above timeout). According to what was said in the description of
the algorithm, larger values increase the throughput in proportion to
the percentage of sequential I/O requests issued. The price of larger
values is that they coarsen the granularity of short-term bandwidth
diff --git a/Documentation/block/biovecs.rst b/Documentation/block/biovecs.rst
index ddb867e0185b..b9dc0c9dbee4 100644
--- a/Documentation/block/biovecs.rst
+++ b/Documentation/block/biovecs.rst
@@ -134,6 +134,7 @@ Usage of helpers:
bio_for_each_bvec_all()
bio_first_bvec_all()
bio_first_page_all()
+ bio_first_folio_all()
bio_last_bvec_all()
* The following helpers iterate over single-page segment. The passed 'struct
diff --git a/Documentation/block/blk-mq.rst b/Documentation/block/blk-mq.rst
index 31f52f326971..fc06761b6ea9 100644
--- a/Documentation/block/blk-mq.rst
+++ b/Documentation/block/blk-mq.rst
@@ -56,7 +56,7 @@ sent to the software queue.
Then, after the requests are processed by software queues, they will be placed
at the hardware queue, a second stage queue where the hardware has direct access
to process those requests. However, if the hardware does not have enough
-resources to accept more requests, blk-mq will places requests on a temporary
+resources to accept more requests, blk-mq will place requests on a temporary
queue, to be sent in the future, when the hardware is able.
Software staging queues
diff --git a/Documentation/block/cmdline-partition.rst b/Documentation/block/cmdline-partition.rst
index 530bedff548a..526ba201dddc 100644
--- a/Documentation/block/cmdline-partition.rst
+++ b/Documentation/block/cmdline-partition.rst
@@ -39,13 +39,16 @@ blkdevparts=<blkdev-def>[;<blkdev-def>]
create a link to block device partition with the name "PARTNAME".
User space application can access partition by partition name.
+ro
+ read-only. Flag the partition as read-only.
+
Example:
eMMC disk names are "mmcblk0" and "mmcblk0boot0".
bootargs::
- 'blkdevparts=mmcblk0:1G(data0),1G(data1),-;mmcblk0boot0:1m(boot),-(kernel)'
+ 'blkdevparts=mmcblk0:1G(data0),1G(data1),-;mmcblk0boot0:1m(boot)ro,-(kernel)'
dmesg::
diff --git a/Documentation/block/data-integrity.rst b/Documentation/block/data-integrity.rst
index 07a97aa26668..99905e880a0e 100644
--- a/Documentation/block/data-integrity.rst
+++ b/Documentation/block/data-integrity.rst
@@ -153,18 +153,11 @@ bio_free() will automatically free the bip.
4.2 Block Device
----------------
-Because the format of the protection data is tied to the physical
-disk, each block device has been extended with a block integrity
-profile (struct blk_integrity). This optional profile is registered
-with the block layer using blk_integrity_register().
-
-The profile contains callback functions for generating and verifying
-the protection data, as well as getting and setting application tags.
-The profile also contains a few constants to aid in completing,
-merging and splitting the integrity metadata.
+Block devices can set up the integrity information in the integrity
+sub-struture of the queue_limits structure.
Layered block devices will need to pick a profile that's appropriate
-for all subdevices. blk_integrity_compare() can help with that. DM
+for all subdevices. queue_limits_stack_integrity() can help with that. DM
and MD linear, RAID0 and RAID1 are currently supported. RAID4/5/6
will require extra work due to the application tag.
@@ -209,7 +202,7 @@ will require extra work due to the application tag.
sector must be set, and the bio should have all data pages
added. It is up to the caller to ensure that the bio does not
change while I/O is in progress.
- Complete bio with error if prepare failed for some reson.
+ Complete bio with error if prepare failed for some reason.
5.3 Passing Existing Integrity Metadata
@@ -250,42 +243,6 @@ will require extra work due to the application tag.
integrity upon completion.
-5.4 Registering A Block Device As Capable Of Exchanging Integrity Metadata
---------------------------------------------------------------------------
-
- To enable integrity exchange on a block device the gendisk must be
- registered as capable:
-
- `int blk_integrity_register(gendisk, blk_integrity);`
-
- The blk_integrity struct is a template and should contain the
- following::
-
- static struct blk_integrity my_profile = {
- .name = "STANDARDSBODY-TYPE-VARIANT-CSUM",
- .generate_fn = my_generate_fn,
- .verify_fn = my_verify_fn,
- .tuple_size = sizeof(struct my_tuple_size),
- .tag_size = <tag bytes per hw sector>,
- };
-
- 'name' is a text string which will be visible in sysfs. This is
- part of the userland API so chose it carefully and never change
- it. The format is standards body-type-variant.
- E.g. T10-DIF-TYPE1-IP or T13-EPP-0-CRC.
-
- 'generate_fn' generates appropriate integrity metadata (for WRITE).
-
- 'verify_fn' verifies that the data buffer matches the integrity
- metadata.
-
- 'tuple_size' must be set to match the size of the integrity
- metadata per sector. I.e. 8 for DIF and EPP.
-
- 'tag_size' must be set to identify how many bytes of tag space
- are available per hardware sector. For DIF this is either 2 or
- 0 depending on the value of the Control Mode Page ATO bit.
-
----------------------------------------------------------------------
2007-12-24 Martin K. Petersen <martin.petersen@oracle.com>
diff --git a/Documentation/block/index.rst b/Documentation/block/index.rst
index 102953166429..9fea696f9daa 100644
--- a/Documentation/block/index.rst
+++ b/Documentation/block/index.rst
@@ -18,7 +18,6 @@ Block
kyber-iosched
null_blk
pr
- request
stat
switching-sched
writeback_cache_control
diff --git a/Documentation/block/inline-encryption.rst b/Documentation/block/inline-encryption.rst
index 90b733422ed4..6380e6ab492b 100644
--- a/Documentation/block/inline-encryption.rst
+++ b/Documentation/block/inline-encryption.rst
@@ -77,10 +77,10 @@ Basic design
============
We introduce ``struct blk_crypto_key`` to represent an inline encryption key and
-how it will be used. This includes the actual bytes of the key; the size of the
-key; the algorithm and data unit size the key will be used with; and the number
-of bytes needed to represent the maximum data unit number the key will be used
-with.
+how it will be used. This includes the type of the key (raw or
+hardware-wrapped); the actual bytes of the key; the size of the key; the
+algorithm and data unit size the key will be used with; and the number of bytes
+needed to represent the maximum data unit number the key will be used with.
We introduce ``struct bio_crypt_ctx`` to represent an encryption context. It
contains a data unit number and a pointer to a blk_crypto_key. We add pointers
@@ -301,3 +301,250 @@ kernel will pretend that the device does not support hardware inline encryption
When the crypto API fallback is enabled, this means that all bios with and
encryption context will use the fallback, and IO will complete as usual. When
the fallback is disabled, a bio with an encryption context will be failed.
+
+.. _hardware_wrapped_keys:
+
+Hardware-wrapped keys
+=====================
+
+Motivation and threat model
+---------------------------
+
+Linux storage encryption (dm-crypt, fscrypt, eCryptfs, etc.) traditionally
+relies on the raw encryption key(s) being present in kernel memory so that the
+encryption can be performed. This traditionally isn't seen as a problem because
+the key(s) won't be present during an offline attack, which is the main type of
+attack that storage encryption is intended to protect from.
+
+However, there is an increasing desire to also protect users' data from other
+types of attacks (to the extent possible), including:
+
+- Cold boot attacks, where an attacker with physical access to a system suddenly
+ powers it off, then immediately dumps the system memory to extract recently
+ in-use encryption keys, then uses these keys to decrypt user data on-disk.
+
+- Online attacks where the attacker is able to read kernel memory without fully
+ compromising the system, followed by an offline attack where any extracted
+ keys can be used to decrypt user data on-disk. An example of such an online
+ attack would be if the attacker is able to run some code on the system that
+ exploits a Meltdown-like vulnerability but is unable to escalate privileges.
+
+- Online attacks where the attacker fully compromises the system, but their data
+ exfiltration is significantly time-limited and/or bandwidth-limited, so in
+ order to completely exfiltrate the data they need to extract the encryption
+ keys to use in a later offline attack.
+
+Hardware-wrapped keys are a feature of inline encryption hardware that is
+designed to protect users' data from the above attacks (to the extent possible),
+without introducing limitations such as a maximum number of keys.
+
+Note that it is impossible to **fully** protect users' data from these attacks.
+Even in the attacks where the attacker "just" gets read access to kernel memory,
+they can still extract any user data that is present in memory, including
+plaintext pagecache pages of encrypted files. The focus here is just on
+protecting the encryption keys, as those instantly give access to **all** user
+data in any following offline attack, rather than just some of it (where which
+data is included in that "some" might not be controlled by the attacker).
+
+Solution overview
+-----------------
+
+Inline encryption hardware typically has "keyslots" into which software can
+program keys for the hardware to use; the contents of keyslots typically can't
+be read back by software. As such, the above security goals could be achieved
+if the kernel simply erased its copy of the key(s) after programming them into
+keyslot(s) and thereafter only referred to them via keyslot number.
+
+However, that naive approach runs into a couple problems:
+
+- It limits the number of unlocked keys to the number of keyslots, which
+ typically is a small number. In cases where there is only one encryption key
+ system-wide (e.g., a full-disk encryption key), that can be tolerable.
+ However, in general there can be many logged-in users with many different
+ keys, and/or many running applications with application-specific encrypted
+ storage areas. This is especially true if file-based encryption (e.g.
+ fscrypt) is being used.
+
+- Inline crypto engines typically lose the contents of their keyslots if the
+ storage controller (usually UFS or eMMC) is reset. Resetting the storage
+ controller is a standard error recovery procedure that is executed if certain
+ types of storage errors occur, and such errors can occur at any time.
+ Therefore, when inline crypto is being used, the operating system must always
+ be ready to reprogram the keyslots without user intervention.
+
+Thus, it is important for the kernel to still have a way to "remind" the
+hardware about a key, without actually having the raw key itself.
+
+Somewhat less importantly, it is also desirable that the raw keys are never
+visible to software at all, even while being initially unlocked. This would
+ensure that a read-only compromise of system memory will never allow a key to be
+extracted to be used off-system, even if it occurs when a key is being unlocked.
+
+To solve all these problems, some vendors of inline encryption hardware have
+made their hardware support *hardware-wrapped keys*. Hardware-wrapped keys
+are encrypted keys that can only be unwrapped (decrypted) and used by hardware
+-- either by the inline encryption hardware itself, or by a dedicated hardware
+block that can directly provision keys to the inline encryption hardware.
+
+(We refer to them as "hardware-wrapped keys" rather than simply "wrapped keys"
+to add some clarity in cases where there could be other types of wrapped keys,
+such as in file-based encryption. Key wrapping is a commonly used technique.)
+
+The key which wraps (encrypts) hardware-wrapped keys is a hardware-internal key
+that is never exposed to software; it is either a persistent key (a "long-term
+wrapping key") or a per-boot key (an "ephemeral wrapping key"). The long-term
+wrapped form of the key is what is initially unlocked, but it is erased from
+memory as soon as it is converted into an ephemerally-wrapped key. In-use
+hardware-wrapped keys are always ephemerally-wrapped, not long-term wrapped.
+
+As inline encryption hardware can only be used to encrypt/decrypt data on-disk,
+the hardware also includes a level of indirection; it doesn't use the unwrapped
+key directly for inline encryption, but rather derives both an inline encryption
+key and a "software secret" from it. Software can use the "software secret" for
+tasks that can't use the inline encryption hardware, such as filenames
+encryption. The software secret is not protected from memory compromise.
+
+Key hierarchy
+-------------
+
+Here is the key hierarchy for a hardware-wrapped key::
+
+ Hardware-wrapped key
+ |
+ |
+ <Hardware KDF>
+ |
+ -----------------------------
+ | |
+ Inline encryption key Software secret
+
+The components are:
+
+- *Hardware-wrapped key*: a key for the hardware's KDF (Key Derivation
+ Function), in ephemerally-wrapped form. The key wrapping algorithm is a
+ hardware implementation detail that doesn't impact kernel operation, but a
+ strong authenticated encryption algorithm such as AES-256-GCM is recommended.
+
+- *Hardware KDF*: a KDF (Key Derivation Function) which the hardware uses to
+ derive subkeys after unwrapping the wrapped key. The hardware's choice of KDF
+ doesn't impact kernel operation, but it does need to be known for testing
+ purposes, and it's also assumed to have at least a 256-bit security strength.
+ All known hardware uses the SP800-108 KDF in Counter Mode with AES-256-CMAC,
+ with a particular choice of labels and contexts; new hardware should use this
+ already-vetted KDF.
+
+- *Inline encryption key*: a derived key which the hardware directly provisions
+ to a keyslot of the inline encryption hardware, without exposing it to
+ software. In all known hardware, this will always be an AES-256-XTS key.
+ However, in principle other encryption algorithms could be supported too.
+ Hardware must derive distinct subkeys for each supported encryption algorithm.
+
+- *Software secret*: a derived key which the hardware returns to software so
+ that software can use it for cryptographic tasks that can't use inline
+ encryption. This value is cryptographically isolated from the inline
+ encryption key, i.e. knowing one doesn't reveal the other. (The KDF ensures
+ this.) Currently, the software secret is always 32 bytes and thus is suitable
+ for cryptographic applications that require up to a 256-bit security strength.
+ Some use cases (e.g. full-disk encryption) won't require the software secret.
+
+Example: in the case of fscrypt, the fscrypt master key (the key that protects a
+particular set of encrypted directories) is made hardware-wrapped. The inline
+encryption key is used as the file contents encryption key, while the software
+secret (rather than the master key directly) is used to key fscrypt's KDF
+(HKDF-SHA512) to derive other subkeys such as filenames encryption keys.
+
+Note that currently this design assumes a single inline encryption key per
+hardware-wrapped key, without any further key derivation. Thus, in the case of
+fscrypt, currently hardware-wrapped keys are only compatible with the "inline
+encryption optimized" settings, which use one file contents encryption key per
+encryption policy rather than one per file. This design could be extended to
+make the hardware derive per-file keys using per-file nonces passed down the
+storage stack, and in fact some hardware already supports this; future work is
+planned to remove this limitation by adding the corresponding kernel support.
+
+Kernel support
+--------------
+
+The inline encryption support of the kernel's block layer ("blk-crypto") has
+been extended to support hardware-wrapped keys as an alternative to raw keys,
+when hardware support is available. This works in the following way:
+
+- A ``key_types_supported`` field is added to the crypto capabilities in
+ ``struct blk_crypto_profile``. This allows device drivers to declare that
+ they support raw keys, hardware-wrapped keys, or both.
+
+- ``struct blk_crypto_key`` can now contain a hardware-wrapped key as an
+ alternative to a raw key; a ``key_type`` field is added to
+ ``struct blk_crypto_config`` to distinguish between the different key types.
+ This allows users of blk-crypto to en/decrypt data using a hardware-wrapped
+ key in a way very similar to using a raw key.
+
+- A new method ``blk_crypto_ll_ops::derive_sw_secret`` is added. Device drivers
+ that support hardware-wrapped keys must implement this method. Users of
+ blk-crypto can call ``blk_crypto_derive_sw_secret()`` to access this method.
+
+- The programming and eviction of hardware-wrapped keys happens via
+ ``blk_crypto_ll_ops::keyslot_program`` and
+ ``blk_crypto_ll_ops::keyslot_evict``, just like it does for raw keys. If a
+ driver supports hardware-wrapped keys, then it must handle hardware-wrapped
+ keys being passed to these methods.
+
+blk-crypto-fallback doesn't support hardware-wrapped keys. Therefore,
+hardware-wrapped keys can only be used with actual inline encryption hardware.
+
+All the above deals with hardware-wrapped keys in ephemerally-wrapped form only.
+To get such keys in the first place, new block device ioctls have been added to
+provide a generic interface to creating and preparing such keys:
+
+- ``BLKCRYPTOIMPORTKEY`` converts a raw key to long-term wrapped form. It takes
+ in a pointer to a ``struct blk_crypto_import_key_arg``. The caller must set
+ ``raw_key_ptr`` and ``raw_key_size`` to the pointer and size (in bytes) of the
+ raw key to import. On success, ``BLKCRYPTOIMPORTKEY`` returns 0 and writes
+ the resulting long-term wrapped key blob to the buffer pointed to by
+ ``lt_key_ptr``, which is of maximum size ``lt_key_size``. It also updates
+ ``lt_key_size`` to be the actual size of the key. On failure, it returns -1
+ and sets errno. An errno of ``EOPNOTSUPP`` indicates that the block device
+ does not support hardware-wrapped keys. An errno of ``EOVERFLOW`` indicates
+ that the output buffer did not have enough space for the key blob.
+
+- ``BLKCRYPTOGENERATEKEY`` is like ``BLKCRYPTOIMPORTKEY``, but it has the
+ hardware generate the key instead of importing one. It takes in a pointer to
+ a ``struct blk_crypto_generate_key_arg``.
+
+- ``BLKCRYPTOPREPAREKEY`` converts a key from long-term wrapped form to
+ ephemerally-wrapped form. It takes in a pointer to a ``struct
+ blk_crypto_prepare_key_arg``. The caller must set ``lt_key_ptr`` and
+ ``lt_key_size`` to the pointer and size (in bytes) of the long-term wrapped
+ key blob to convert. On success, ``BLKCRYPTOPREPAREKEY`` returns 0 and writes
+ the resulting ephemerally-wrapped key blob to the buffer pointed to by
+ ``eph_key_ptr``, which is of maximum size ``eph_key_size``. It also updates
+ ``eph_key_size`` to be the actual size of the key. On failure, it returns -1
+ and sets errno. Errno values of ``EOPNOTSUPP`` and ``EOVERFLOW`` mean the
+ same as they do for ``BLKCRYPTOIMPORTKEY``. An errno of ``EBADMSG`` indicates
+ that the long-term wrapped key is invalid.
+
+Userspace needs to use either ``BLKCRYPTOIMPORTKEY`` or ``BLKCRYPTOGENERATEKEY``
+once to create a key, and then ``BLKCRYPTOPREPAREKEY`` each time the key is
+unlocked and added to the kernel. Note that these ioctls have no relevance for
+raw keys; they are only for hardware-wrapped keys.
+
+Testability
+-----------
+
+Both the hardware KDF and the inline encryption itself are well-defined
+algorithms that don't depend on any secrets other than the unwrapped key.
+Therefore, if the unwrapped key is known to software, these algorithms can be
+reproduced in software in order to verify the ciphertext that is written to disk
+by the inline encryption hardware.
+
+However, the unwrapped key will only be known to software for testing if the
+"import" functionality is used. Proper testing is not possible in the
+"generate" case where the hardware generates the key itself. The correct
+operation of the "generate" mode thus relies on the security and correctness of
+the hardware RNG and its use to generate the key, as well as the testing of the
+"import" mode as that should cover all parts other than the key generation.
+
+For an example of a test that verifies the ciphertext written to disk in the
+"import" mode, see the fscrypt hardware-wrapped key tests in xfstests, or
+`Android's vts_kernel_encryption_test
+<https://android.googlesource.com/platform/test/vts-testcase/kernel/+/refs/heads/main/encryption/>`_.
diff --git a/Documentation/block/ioprio.rst b/Documentation/block/ioprio.rst
index f72b0de65af7..4662e1ff3d81 100644
--- a/Documentation/block/ioprio.rst
+++ b/Documentation/block/ioprio.rst
@@ -6,17 +6,16 @@ Block io priorities
Intro
-----
-With the introduction of cfq v3 (aka cfq-ts or time sliced cfq), basic io
-priorities are supported for reads on files. This enables users to io nice
-processes or process groups, similar to what has been possible with cpu
-scheduling for ages. This document mainly details the current possibilities
-with cfq; other io schedulers do not support io priorities thus far.
+The io priority feature enables users to io nice processes or process groups,
+similar to what has been possible with cpu scheduling for ages. Support for io
+priorities is io scheduler dependent and currently supported by bfq and
+mq-deadline.
Scheduling classes
------------------
-CFQ implements three generic scheduling classes that determine how io is
-served for a process.
+Three generic scheduling classes are implemented for io priorities that
+determine how io is served for a process.
IOPRIO_CLASS_RT: This is the realtime io class. This scheduling class is given
higher priority than any other in the system, processes from this class are
@@ -80,9 +79,6 @@ ionice.c tool::
#elif defined(__x86_64__)
#define __NR_ioprio_set 251
#define __NR_ioprio_get 252
- #elif defined(__ia64__)
- #define __NR_ioprio_set 1274
- #define __NR_ioprio_get 1275
#else
#error "Unsupported arch"
#endif
diff --git a/Documentation/block/request.rst b/Documentation/block/request.rst
deleted file mode 100644
index 747021e1ffdb..000000000000
--- a/Documentation/block/request.rst
+++ /dev/null
@@ -1,99 +0,0 @@
-============================
-struct request documentation
-============================
-
-Jens Axboe <jens.axboe@oracle.com> 27/05/02
-
-
-.. FIXME:
- No idea about what does mean - seems just some noise, so comment it
-
- 1.0
- Index
-
- 2.0 Struct request members classification
-
- 2.1 struct request members explanation
-
- 3.0
-
-
- 2.0
-
-
-
-Short explanation of request members
-====================================
-
-Classification flags:
-
- = ====================
- D driver member
- B block layer member
- I I/O scheduler member
- = ====================
-
-Unless an entry contains a D classification, a device driver must not access
-this member. Some members may contain D classifications, but should only be
-access through certain macros or functions (eg ->flags).
-
-<linux/blkdev.h>
-
-=============================== ======= =======================================
-Member Flag Comment
-=============================== ======= =======================================
-struct list_head queuelist BI Organization on various internal
- queues
-
-``void *elevator_private`` I I/O scheduler private data
-
-unsigned char cmd[16] D Driver can use this for setting up
- a cdb before execution, see
- blk_queue_prep_rq
-
-unsigned long flags DBI Contains info about data direction,
- request type, etc.
-
-int rq_status D Request status bits
-
-kdev_t rq_dev DBI Target device
-
-int errors DB Error counts
-
-sector_t sector DBI Target location
-
-unsigned long hard_nr_sectors B Used to keep sector sane
-
-unsigned long nr_sectors DBI Total number of sectors in request
-
-unsigned long hard_nr_sectors B Used to keep nr_sectors sane
-
-unsigned short nr_phys_segments DB Number of physical scatter gather
- segments in a request
-
-unsigned short nr_hw_segments DB Number of hardware scatter gather
- segments in a request
-
-unsigned int current_nr_sectors DB Number of sectors in first segment
- of request
-
-unsigned int hard_cur_sectors B Used to keep current_nr_sectors sane
-
-int tag DB TCQ tag, if assigned
-
-``void *special`` D Free to be used by driver
-
-``char *buffer`` D Map of first segment, also see
- section on bouncing SECTION
-
-``struct completion *waiting`` D Can be used by driver to get signalled
- on request completion
-
-``struct bio *bio`` DBI First bio in request
-
-``struct bio *biotail`` DBI Last bio in request
-
-``struct request_queue *q`` DB Request queue this request belongs to
-
-``struct request_list *rl`` B Request list this request came from
-=============================== ======= =======================================
diff --git a/Documentation/block/ublk.rst b/Documentation/block/ublk.rst
index 1713b2890abb..8c4030bcabb6 100644
--- a/Documentation/block/ublk.rst
+++ b/Documentation/block/ublk.rst
@@ -115,15 +115,15 @@ managing and controlling ublk devices with help of several control commands:
- ``UBLK_CMD_START_DEV``
- After the server prepares userspace resources (such as creating per-queue
- pthread & io_uring for handling ublk IO), this command is sent to the
+ After the server prepares userspace resources (such as creating I/O handler
+ threads & io_uring for handling ublk IO), this command is sent to the
driver for allocating & exposing ``/dev/ublkb*``. Parameters set via
``UBLK_CMD_SET_PARAMS`` are applied for creating the device.
- ``UBLK_CMD_STOP_DEV``
Halt IO on ``/dev/ublkb*`` and remove the device. When this command returns,
- ublk server will release resources (such as destroying per-queue pthread &
+ ublk server will release resources (such as destroying I/O handler threads &
io_uring).
- ``UBLK_CMD_DEL_DEV``
@@ -199,24 +199,36 @@ managing and controlling ublk devices with help of several control commands:
- user recovery feature description
- Two new features are added for user recovery: ``UBLK_F_USER_RECOVERY`` and
- ``UBLK_F_USER_RECOVERY_REISSUE``.
-
- With ``UBLK_F_USER_RECOVERY`` set, after one ubq_daemon(ublk server's io
- handler) is dying, ublk does not delete ``/dev/ublkb*`` during the whole
+ Three new features are added for user recovery: ``UBLK_F_USER_RECOVERY``,
+ ``UBLK_F_USER_RECOVERY_REISSUE``, and ``UBLK_F_USER_RECOVERY_FAIL_IO``. To
+ enable recovery of ublk devices after the ublk server exits, the ublk server
+ should specify the ``UBLK_F_USER_RECOVERY`` flag when creating the device. The
+ ublk server may additionally specify at most one of
+ ``UBLK_F_USER_RECOVERY_REISSUE`` and ``UBLK_F_USER_RECOVERY_FAIL_IO`` to
+ modify how I/O is handled while the ublk server is dying/dead (this is called
+ the ``nosrv`` case in the driver code).
+
+ With just ``UBLK_F_USER_RECOVERY`` set, after the ublk server exits,
+ ublk does not delete ``/dev/ublkb*`` during the whole
recovery stage and ublk device ID is kept. It is ublk server's
responsibility to recover the device context by its own knowledge.
Requests which have not been issued to userspace are requeued. Requests
which have been issued to userspace are aborted.
- With ``UBLK_F_USER_RECOVERY_REISSUE`` set, after one ubq_daemon(ublk
- server's io handler) is dying, contrary to ``UBLK_F_USER_RECOVERY``,
+ With ``UBLK_F_USER_RECOVERY_REISSUE`` additionally set, after the ublk server
+ exits, contrary to ``UBLK_F_USER_RECOVERY``,
requests which have been issued to userspace are requeued and will be
re-issued to the new process after handling ``UBLK_CMD_END_USER_RECOVERY``.
``UBLK_F_USER_RECOVERY_REISSUE`` is designed for backends who tolerate
double-write since the driver may issue the same I/O request twice. It
might be useful to a read-only FS or a VM backend.
+ With ``UBLK_F_USER_RECOVERY_FAIL_IO`` additionally set, after the ublk server
+ exits, requests which have issued to userspace are failed, as are any
+ subsequently issued requests. Applications continuously issuing I/O against
+ devices with this flag set will see a stream of I/O errors until a new ublk
+ server recovers the device.
+
Unprivileged ublk device is supported by passing ``UBLK_F_UNPRIVILEGED_DEV``.
Once the flag is set, all control commands can be sent by unprivileged
user. Except for command of ``UBLK_CMD_ADD_DEV``, permission check on
@@ -229,16 +241,17 @@ can be controlled/accessed just inside this container.
Data plane
----------
-ublk server needs to create per-queue IO pthread & io_uring for handling IO
-commands via io_uring passthrough. The per-queue IO pthread
-focuses on IO handling and shouldn't handle any control & management
-tasks.
+The ublk server should create dedicated threads for handling I/O. Each
+thread should have its own io_uring through which it is notified of new
+I/O, and through which it can complete I/O. These dedicated threads
+should focus on IO handling and shouldn't handle any control &
+management tasks.
The's IO is assigned by a unique tag, which is 1:1 mapping with IO
request of ``/dev/ublkb*``.
UAPI structure of ``ublksrv_io_desc`` is defined for describing each IO from
-the driver. A fixed mmaped area (array) on ``/dev/ublkc*`` is provided for
+the driver. A fixed mmapped area (array) on ``/dev/ublkc*`` is provided for
exporting IO info to the server; such as IO offset, length, OP/flags and
buffer address. Each ``ublksrv_io_desc`` instance can be indexed via queue id
and IO tag directly.
@@ -253,6 +266,18 @@ with specified IO tag in the command data:
destined to ``/dev/ublkb*``. This command is sent only once from the server
IO pthread for ublk driver to setup IO forward environment.
+ Once a thread issues this command against a given (qid,tag) pair, the thread
+ registers itself as that I/O's daemon. In the future, only that I/O's daemon
+ is allowed to issue commands against the I/O. If any other thread attempts
+ to issue a command against a (qid,tag) pair for which the thread is not the
+ daemon, the command will fail. Daemons can be reset only be going through
+ recovery.
+
+ The ability for every (qid,tag) pair to have its own independent daemon task
+ is indicated by the ``UBLK_F_PER_IO_DAEMON`` feature. If this feature is not
+ supported by the driver, daemons must be per-queue instead - i.e. all I/Os
+ associated to a single qid must be handled by the same task.
+
- ``UBLK_IO_COMMIT_AND_FETCH_REQ``
When an IO request is destined to ``/dev/ublkb*``, the driver stores
@@ -297,18 +322,112 @@ with specified IO tag in the command data:
``UBLK_IO_COMMIT_AND_FETCH_REQ`` to the server, ublkdrv needs to copy
the server buffer (pages) read to the IO request pages.
-Future development
-==================
-
Zero copy
---------
-Zero copy is a generic requirement for nbd, fuse or similar drivers. A
-problem [#xiaoguang]_ Xiaoguang mentioned is that pages mapped to userspace
-can't be remapped any more in kernel with existing mm interfaces. This can
-occurs when destining direct IO to ``/dev/ublkb*``. Also, he reported that
-big requests (IO size >= 256 KB) may benefit a lot from zero copy.
+ublk zero copy relies on io_uring's fixed kernel buffer, which provides
+two APIs: `io_buffer_register_bvec()` and `io_buffer_unregister_bvec`.
+
+ublk adds IO command of `UBLK_IO_REGISTER_IO_BUF` to call
+`io_buffer_register_bvec()` for ublk server to register client request
+buffer into io_uring buffer table, then ublk server can submit io_uring
+IOs with the registered buffer index. IO command of `UBLK_IO_UNREGISTER_IO_BUF`
+calls `io_buffer_unregister_bvec()` to unregister the buffer, which is
+guaranteed to be live between calling `io_buffer_register_bvec()` and
+`io_buffer_unregister_bvec()`. Any io_uring operation which supports this
+kind of kernel buffer will grab one reference of the buffer until the
+operation is completed.
+
+ublk server implementing zero copy or user copy has to be CAP_SYS_ADMIN and
+be trusted, because it is ublk server's responsibility to make sure IO buffer
+filled with data for handling read command, and ublk server has to return
+correct result to ublk driver when handling READ command, and the result
+has to match with how many bytes filled to the IO buffer. Otherwise,
+uninitialized kernel IO buffer will be exposed to client application.
+
+ublk server needs to align the parameter of `struct ublk_param_dma_align`
+with backend for zero copy to work correctly.
+
+For reaching best IO performance, ublk server should align its segment
+parameter of `struct ublk_param_segment` with backend for avoiding
+unnecessary IO split, which usually hurts io_uring performance.
+
+Auto Buffer Registration
+------------------------
+
+The ``UBLK_F_AUTO_BUF_REG`` feature automatically handles buffer registration
+and unregistration for I/O requests, which simplifies the buffer management
+process and reduces overhead in the ublk server implementation.
+
+This is another feature flag for using zero copy, and it is compatible with
+``UBLK_F_SUPPORT_ZERO_COPY``.
+
+Feature Overview
+~~~~~~~~~~~~~~~~
+
+This feature automatically registers request buffers to the io_uring context
+before delivering I/O commands to the ublk server and unregisters them when
+completing I/O commands. This eliminates the need for manual buffer
+registration/unregistration via ``UBLK_IO_REGISTER_IO_BUF`` and
+``UBLK_IO_UNREGISTER_IO_BUF`` commands, then IO handling in ublk server
+can avoid dependency on the two uring_cmd operations.
+
+IOs can't be issued concurrently to io_uring if there is any dependency
+among these IOs. So this way not only simplifies ublk server implementation,
+but also makes concurrent IO handling becomes possible by removing the
+dependency on buffer registration & unregistration commands.
+
+Usage Requirements
+~~~~~~~~~~~~~~~~~~
+1. The ublk server must create a sparse buffer table on the same ``io_ring_ctx``
+ used for ``UBLK_IO_FETCH_REQ`` and ``UBLK_IO_COMMIT_AND_FETCH_REQ``. If
+ uring_cmd is issued on a different ``io_ring_ctx``, manual buffer
+ unregistration is required.
+
+2. Buffer registration data must be passed via uring_cmd's ``sqe->addr`` with the
+ following structure::
+
+ struct ublk_auto_buf_reg {
+ __u16 index; /* Buffer index for registration */
+ __u8 flags; /* Registration flags */
+ __u8 reserved0; /* Reserved for future use */
+ __u32 reserved1; /* Reserved for future use */
+ };
+
+ ublk_auto_buf_reg_to_sqe_addr() is for converting the above structure into
+ ``sqe->addr``.
+
+3. All reserved fields in ``ublk_auto_buf_reg`` must be zeroed.
+
+4. Optional flags can be passed via ``ublk_auto_buf_reg.flags``.
+
+Fallback Behavior
+~~~~~~~~~~~~~~~~~
+
+If auto buffer registration fails:
+
+1. When ``UBLK_AUTO_BUF_REG_FALLBACK`` is enabled:
+
+ - The uring_cmd is completed
+ - ``UBLK_IO_F_NEED_REG_BUF`` is set in ``ublksrv_io_desc.op_flags``
+ - The ublk server must manually deal with the failure, such as, register
+ the buffer manually, or using user copy feature for retrieving the data
+ for handling ublk IO
+
+2. If fallback is not enabled:
+
+ - The ublk I/O request fails silently
+ - The uring_cmd won't be completed
+
+Limitations
+~~~~~~~~~~~
+
+- Requires same ``io_ring_ctx`` for all operations
+- May require manual buffer management in fallback cases
+- io_ring_ctx buffer table has a max size of 16K, which may not be enough
+ in case that too many ublk devices are handled by this single io_ring_ctx
+ and each one has very large queue depth
References
==========
@@ -320,7 +439,3 @@ References
.. [#userspace_nbdublk] https://gitlab.com/rwmjones/libnbd/-/tree/nbdublk
.. [#userspace_readme] https://github.com/ming1/ubdsrv/blob/master/README
-
-.. [#stefan] https://lore.kernel.org/linux-block/YoOr6jBfgVm8GvWg@stefanha-x1.localdomain/
-
-.. [#xiaoguang] https://lore.kernel.org/linux-block/YoOr6jBfgVm8GvWg@stefanha-x1.localdomain/
diff --git a/Documentation/block/writeback_cache_control.rst b/Documentation/block/writeback_cache_control.rst
index b208488d0aae..c3707d071780 100644
--- a/Documentation/block/writeback_cache_control.rst
+++ b/Documentation/block/writeback_cache_control.rst
@@ -46,41 +46,50 @@ worry if the underlying devices need any explicit cache flushing and how
the Forced Unit Access is implemented. The REQ_PREFLUSH and REQ_FUA flags
may both be set on a single bio.
+Feature settings for block drivers
+----------------------------------
-Implementation details for bio based block drivers
---------------------------------------------------------------
+For devices that do not support volatile write caches there is no driver
+support required, the block layer completes empty REQ_PREFLUSH requests before
+entering the driver and strips off the REQ_PREFLUSH and REQ_FUA bits from
+requests that have a payload.
-These drivers will always see the REQ_PREFLUSH and REQ_FUA bits as they sit
-directly below the submit_bio interface. For remapping drivers the REQ_FUA
-bits need to be propagated to underlying devices, and a global flush needs
-to be implemented for bios with the REQ_PREFLUSH bit set. For real device
-drivers that do not have a volatile cache the REQ_PREFLUSH and REQ_FUA bits
-on non-empty bios can simply be ignored, and REQ_PREFLUSH requests without
-data can be completed successfully without doing any work. Drivers for
-devices with volatile caches need to implement the support for these
-flags themselves without any help from the block layer.
+For devices with volatile write caches the driver needs to tell the block layer
+that it supports flushing caches by setting the
+ BLK_FEAT_WRITE_CACHE
-Implementation details for request_fn based block drivers
----------------------------------------------------------
+flag in the queue_limits feature field. For devices that also support the FUA
+bit the block layer needs to be told to pass on the REQ_FUA bit by also setting
+the
-For devices that do not support volatile write caches there is no driver
-support required, the block layer completes empty REQ_PREFLUSH requests before
-entering the driver and strips off the REQ_PREFLUSH and REQ_FUA bits from
-requests that have a payload. For devices with volatile write caches the
-driver needs to tell the block layer that it supports flushing caches by
-doing::
+ BLK_FEAT_FUA
+
+flag in the features field of the queue_limits structure.
+
+Implementation details for bio based block drivers
+--------------------------------------------------
+
+For bio based drivers the REQ_PREFLUSH and REQ_FUA bit are simply passed on to
+the driver if the driver sets the BLK_FEAT_WRITE_CACHE flag and the driver
+needs to handle them.
+
+*NOTE*: The REQ_FUA bit also gets passed on when the BLK_FEAT_FUA flags is
+_not_ set. Any bio based driver that sets BLK_FEAT_WRITE_CACHE also needs to
+handle REQ_FUA.
- blk_queue_write_cache(sdkp->disk->queue, true, false);
+For remapping drivers the REQ_FUA bits need to be propagated to underlying
+devices, and a global flush needs to be implemented for bios with the
+REQ_PREFLUSH bit set.
-and handle empty REQ_OP_FLUSH requests in its prep_fn/request_fn. Note that
-REQ_PREFLUSH requests with a payload are automatically turned into a sequence
-of an empty REQ_OP_FLUSH request followed by the actual write by the block
-layer. For devices that also support the FUA bit the block layer needs
-to be told to pass through the REQ_FUA bit using::
+Implementation details for blk-mq drivers
+-----------------------------------------
- blk_queue_write_cache(sdkp->disk->queue, true, true);
+When the BLK_FEAT_WRITE_CACHE flag is set, REQ_OP_WRITE | REQ_PREFLUSH requests
+with a payload are automatically turned into a sequence of a REQ_OP_FLUSH
+request followed by the actual write by the block layer.
-and the driver must handle write requests that have the REQ_FUA bit set
-in prep_fn/request_fn. If the FUA bit is not natively supported the block
-layer turns it into an empty REQ_OP_FLUSH request after the actual write.
+When the BLK_FEAT_FUA flags is set, the REQ_FUA bit is simply passed on for the
+REQ_OP_WRITE request, else a REQ_OP_FLUSH request is sent by the block layer
+after the completion of the write request for bio submissions with the REQ_FUA
+bit set.
diff --git a/Documentation/bpf/bpf_design_QA.rst b/Documentation/bpf/bpf_design_QA.rst
index 38372a956d65..eb19c945f4d5 100644
--- a/Documentation/bpf/bpf_design_QA.rst
+++ b/Documentation/bpf/bpf_design_QA.rst
@@ -140,11 +140,6 @@ A: Because if we picked one-to-one relationship to x64 it would have made
it more complicated to support on arm64 and other archs. Also it
needs div-by-zero runtime check.
-Q: Why there is no BPF_SDIV for signed divide operation?
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-A: Because it would be rarely used. llvm errors in such case and
-prints a suggestion to use unsigned divide instead.
-
Q: Why BPF has implicit prologue and epilogue?
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
A: Because architectures like sparc have register windows and in general
diff --git a/Documentation/bpf/bpf_devel_QA.rst b/Documentation/bpf/bpf_devel_QA.rst
index 609b71f5747d..45bc5c5cd793 100644
--- a/Documentation/bpf/bpf_devel_QA.rst
+++ b/Documentation/bpf/bpf_devel_QA.rst
@@ -382,6 +382,14 @@ In case of new BPF instructions, once the changes have been accepted
into the Linux kernel, please implement support into LLVM's BPF back
end. See LLVM_ section below for further information.
+Q: What "BPF_INTERNAL" symbol namespace is for?
+-----------------------------------------------
+A: Symbols exported as BPF_INTERNAL can only be used by BPF infrastructure
+like preload kernel modules with light skeleton. Most symbols outside
+of BPF_INTERNAL are not expected to be used by code outside of BPF either.
+Symbols may lack the designation because they predate the namespaces,
+or due to an oversight.
+
Stable submission
=================
@@ -603,9 +611,10 @@ Q: I have added a new BPF instruction to the kernel, how can I integrate
it into LLVM?
A: LLVM has a ``-mcpu`` selector for the BPF back end in order to allow
-the selection of BPF instruction set extensions. By default the
-``generic`` processor target is used, which is the base instruction set
-(v1) of BPF.
+the selection of BPF instruction set extensions. Before llvm version 20,
+the ``generic`` processor target is used, which is the base instruction
+set (v1) of BPF. Since llvm 20, the default processor target has changed
+to instruction set v3.
LLVM has an option to select ``-mcpu=probe`` where it will probe the host
kernel for supported BPF instruction set extensions and selects the
@@ -635,12 +644,12 @@ test coverage.
Q: clang flag for target bpf?
-----------------------------
-Q: In some cases clang flag ``-target bpf`` is used but in other cases the
+Q: In some cases clang flag ``--target=bpf`` is used but in other cases the
default clang target, which matches the underlying architecture, is used.
What is the difference and when I should use which?
A: Although LLVM IR generation and optimization try to stay architecture
-independent, ``-target <arch>`` still has some impact on generated code:
+independent, ``--target=<arch>`` still has some impact on generated code:
- BPF program may recursively include header file(s) with file scope
inline assembly codes. The default target can handle this well,
@@ -658,7 +667,7 @@ independent, ``-target <arch>`` still has some impact on generated code:
The clang option ``-fno-jump-tables`` can be used to disable
switch table generation.
-- For clang ``-target bpf``, it is guaranteed that pointer or long /
+- For clang ``--target=bpf``, it is guaranteed that pointer or long /
unsigned long types will always have a width of 64 bit, no matter
whether underlying clang binary or default target (or kernel) is
32 bit. However, when native clang target is used, then it will
@@ -668,7 +677,7 @@ independent, ``-target <arch>`` still has some impact on generated code:
while the BPF LLVM back end still operates in 64 bit. The native
target is mostly needed in tracing for the case of walking ``pt_regs``
or other kernel structures where CPU's register width matters.
- Otherwise, ``clang -target bpf`` is generally recommended.
+ Otherwise, ``clang --target=bpf`` is generally recommended.
You should use default target when:
@@ -685,7 +694,7 @@ when:
into these structures is verified by the BPF verifier and may result
in verification failures if the native architecture is not aligned with
the BPF architecture, e.g. 64-bit. An example of this is
- BPF_PROG_TYPE_SK_MSG require ``-target bpf``
+ BPF_PROG_TYPE_SK_MSG require ``--target=bpf``
.. Links
diff --git a/Documentation/bpf/bpf_iterators.rst b/Documentation/bpf/bpf_iterators.rst
index 6d7770793fab..189e3ec1c6c8 100644
--- a/Documentation/bpf/bpf_iterators.rst
+++ b/Documentation/bpf/bpf_iterators.rst
@@ -2,10 +2,117 @@
BPF Iterators
=============
+--------
+Overview
+--------
+
+BPF supports two separate entities collectively known as "BPF iterators": BPF
+iterator *program type* and *open-coded* BPF iterators. The former is
+a stand-alone BPF program type which, when attached and activated by user,
+will be called once for each entity (task_struct, cgroup, etc) that is being
+iterated. The latter is a set of BPF-side APIs implementing iterator
+functionality and available across multiple BPF program types. Open-coded
+iterators provide similar functionality to BPF iterator programs, but gives
+more flexibility and control to all other BPF program types. BPF iterator
+programs, on the other hand, can be used to implement anonymous or BPF
+FS-mounted special files, whose contents are generated by attached BPF iterator
+program, backed by seq_file functionality. Both are useful depending on
+specific needs.
+
+When adding a new BPF iterator program, it is expected that similar
+functionality will be added as open-coded iterator for maximum flexibility.
+It's also expected that iteration logic and code will be maximally shared and
+reused between two iterator API surfaces.
-----------
-Motivation
-----------
+------------------------
+Open-coded BPF Iterators
+------------------------
+
+Open-coded BPF iterators are implemented as tightly-coupled trios of kfuncs
+(constructor, next element fetch, destructor) and iterator-specific type
+describing on-the-stack iterator state, which is guaranteed by the BPF
+verifier to not be tampered with outside of the corresponding
+constructor/destructor/next APIs.
+
+Each kind of open-coded BPF iterator has its own associated
+struct bpf_iter_<type>, where <type> denotes a specific type of iterator.
+bpf_iter_<type> state needs to live on BPF program stack, so make sure it's
+small enough to fit on BPF stack. For performance reasons its best to avoid
+dynamic memory allocation for iterator state and size the state struct big
+enough to fit everything necessary. But if necessary, dynamic memory
+allocation is a way to bypass BPF stack limitations. Note, state struct size
+is part of iterator's user-visible API, so changing it will break backwards
+compatibility, so be deliberate about designing it.
+
+All kfuncs (constructor, next, destructor) have to be named consistently as
+bpf_iter_<type>_{new,next,destroy}(), respectively. <type> represents iterator
+type, and iterator state should be represented as a matching
+`struct bpf_iter_<type>` state type. Also, all iter kfuncs should have
+a pointer to this `struct bpf_iter_<type>` as the very first argument.
+
+Additionally:
+ - Constructor, i.e., `bpf_iter_<type>_new()`, can have arbitrary extra
+ number of arguments. Return type is not enforced either.
+ - Next method, i.e., `bpf_iter_<type>_next()`, has to return a pointer
+ type and should have exactly one argument: `struct bpf_iter_<type> *`
+ (const/volatile/restrict and typedefs are ignored).
+ - Destructor, i.e., `bpf_iter_<type>_destroy()`, should return void and
+ should have exactly one argument, similar to the next method.
+ - `struct bpf_iter_<type>` size is enforced to be positive and
+ a multiple of 8 bytes (to fit stack slots correctly).
+
+Such strictness and consistency allows to build generic helpers abstracting
+important, but boilerplate, details to be able to use open-coded iterators
+effectively and ergonomically (see libbpf's bpf_for_each() macro). This is
+enforced at kfunc registration point by the kernel.
+
+Constructor/next/destructor implementation contract is as follows:
+ - constructor, `bpf_iter_<type>_new()`, always initializes iterator state on
+ the stack. If any of the input arguments are invalid, constructor should
+ make sure to still initialize it such that subsequent next() calls will
+ return NULL. I.e., on error, *return error and construct empty iterator*.
+ Constructor kfunc is marked with KF_ITER_NEW flag.
+
+ - next method, `bpf_iter_<type>_next()`, accepts pointer to iterator state
+ and produces an element. Next method should always return a pointer. The
+ contract between BPF verifier is that next method *guarantees* that it
+ will eventually return NULL when elements are exhausted. Once NULL is
+ returned, subsequent next calls *should keep returning NULL*. Next method
+ is marked with KF_ITER_NEXT (and should also have KF_RET_NULL as
+ NULL-returning kfunc, of course).
+
+ - destructor, `bpf_iter_<type>_destroy()`, is always called once. Even if
+ constructor failed or next returned nothing. Destructor frees up any
+ resources and marks stack space used by `struct bpf_iter_<type>` as usable
+ for something else. Destructor is marked with KF_ITER_DESTROY flag.
+
+Any open-coded BPF iterator implementation has to implement at least these
+three methods. It is enforced that for any given type of iterator only
+applicable constructor/destructor/next are callable. I.e., verifier ensures
+you can't pass number iterator state into, say, cgroup iterator's next method.
+
+From a 10,000-feet BPF verification point of view, next methods are the points
+of forking a verification state, which are conceptually similar to what
+verifier is doing when validating conditional jumps. Verifier is branching out
+`call bpf_iter_<type>_next` instruction and simulates two outcomes: NULL
+(iteration is done) and non-NULL (new element is returned). NULL is simulated
+first and is supposed to reach exit without looping. After that non-NULL case
+is validated and it either reaches exit (for trivial examples with no real
+loop), or reaches another `call bpf_iter_<type>_next` instruction with the
+state equivalent to already (partially) validated one. State equivalency at
+that point means we technically are going to be looping forever without
+"breaking out" out of established "state envelope" (i.e., subsequent
+iterations don't add any new knowledge or constraints to the verifier state,
+so running 1, 2, 10, or a million of them doesn't matter). But taking into
+account the contract stating that iterator next method *has to* return NULL
+eventually, we can conclude that loop body is safe and will eventually
+terminate. Given we validated logic outside of the loop (NULL case), and
+concluded that loop body is safe (though potentially looping many times),
+verifier can claim safety of the overall program logic.
+
+------------------------
+BPF Iterators Motivation
+------------------------
There are a few existing ways to dump kernel data into user space. The most
popular one is the ``/proc`` system. For example, ``cat /proc/net/tcp6`` dumps
@@ -86,7 +193,7 @@ following steps:
The following are a few examples of selftest BPF iterator programs:
* `bpf_iter_tcp4.c <https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/tree/tools/testing/selftests/bpf/progs/bpf_iter_tcp4.c>`_
-* `bpf_iter_task_vma.c <https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/tree/tools/testing/selftests/bpf/progs/bpf_iter_task_vma.c>`_
+* `bpf_iter_task_vmas.c <https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/tree/tools/testing/selftests/bpf/progs/bpf_iter_task_vmas.c>`_
* `bpf_iter_task_file.c <https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/tree/tools/testing/selftests/bpf/progs/bpf_iter_task_file.c>`_
Let us look at ``bpf_iter_task_file.c``, which runs in kernel space:
@@ -238,11 +345,8 @@ The following is the breakdown for each field in struct ``bpf_iter_reg``.
that the kernel function cond_resched() is called to avoid other kernel
subsystem (e.g., rcu) misbehaving.
* - seq_info
- - Specifies certain action requests in the kernel BPF iterator
- infrastructure. Currently, only BPF_ITER_RESCHED is supported. This means
- that the kernel function cond_resched() is called to avoid other kernel
- subsystem (e.g., rcu) misbehaving.
-
+ - Specifies the set of seq operations for the BPF iterator and helpers to
+ initialize/free the private data for the corresponding ``seq_file``.
`Click here
<https://lore.kernel.org/bpf/20210212183107.50963-2-songliubraving@fb.com/>`_
@@ -326,8 +430,8 @@ Now, in the userspace program, pass the pointer of struct to the
::
- link = bpf_program__attach_iter(prog, &opts); iter_fd =
- bpf_iter_create(bpf_link__fd(link));
+ link = bpf_program__attach_iter(prog, &opts);
+ iter_fd = bpf_iter_create(bpf_link__fd(link));
If both *tid* and *pid* are zero, an iterator created from this struct
``bpf_iter_attach_opts`` will include every opened file of every task in the
diff --git a/Documentation/bpf/btf.rst b/Documentation/bpf/btf.rst
index 7cd7c5415a99..3b60583f5db2 100644
--- a/Documentation/bpf/btf.rst
+++ b/Documentation/bpf/btf.rst
@@ -102,7 +102,8 @@ Each type contains the following common data::
* bits 24-28: kind (e.g. int, ptr, array...etc)
* bits 29-30: unused
* bit 31: kind_flag, currently used by
- * struct, union, fwd, enum and enum64.
+ * struct, union, enum, fwd, enum64,
+ * decl_tag and type_tag
*/
__u32 info;
/* "size" is used by INT, ENUM, STRUCT, UNION and ENUM64.
@@ -272,10 +273,8 @@ In this case, if the base type is an int type, it must be a regular int type:
* ``BTF_INT_OFFSET()`` must be 0.
* ``BTF_INT_BITS()`` must be equal to ``{1,2,4,8,16} * 8``.
-The following kernel patch introduced ``kind_flag`` and explained why both
-modes exist:
-
- https://github.com/torvalds/linux/commit/9d5f9f701b1891466fb3dbb1806ad97716f95cc3#diff-fa650a64fdd3968396883d2fe8215ff3
+Commit 9d5f9f701b18 introduced ``kind_flag`` and explains why both modes
+exist.
2.2.6 BTF_KIND_ENUM
~~~~~~~~~~~~~~~~~~~
@@ -370,7 +369,7 @@ No additional type data follow ``btf_type``.
* ``info.kind_flag``: 0
* ``info.kind``: BTF_KIND_FUNC
* ``info.vlen``: linkage information (BTF_FUNC_STATIC, BTF_FUNC_GLOBAL
- or BTF_FUNC_EXTERN)
+ or BTF_FUNC_EXTERN - see :ref:`BTF_Function_Linkage_Constants`)
* ``type``: a BTF_KIND_FUNC_PROTO type
No additional type data follow ``btf_type``.
@@ -426,9 +425,8 @@ following data::
__u32 linkage;
};
-``struct btf_var`` encoding:
- * ``linkage``: currently only static variable 0, or globally allocated
- variable in ELF sections 1
+``btf_var.linkage`` may take the values: BTF_VAR_STATIC, BTF_VAR_GLOBAL_ALLOCATED or BTF_VAR_GLOBAL_EXTERN -
+see :ref:`BTF_Var_Linkage_Constants`.
Not all type of global variables are supported by LLVM at this point.
The following is currently available:
@@ -481,7 +479,7 @@ No additional type data follow ``btf_type``.
``struct btf_type`` encoding requirement:
* ``name_off``: offset to a non-empty string
- * ``info.kind_flag``: 0
+ * ``info.kind_flag``: 0 or 1
* ``info.kind``: BTF_KIND_DECL_TAG
* ``info.vlen``: 0
* ``type``: ``struct``, ``union``, ``func``, ``var`` or ``typedef``
@@ -492,7 +490,6 @@ No additional type data follow ``btf_type``.
__u32 component_idx;
};
-The ``name_off`` encodes btf_decl_tag attribute string.
The ``type`` should be ``struct``, ``union``, ``func``, ``var`` or ``typedef``.
For ``var`` or ``typedef`` type, ``btf_decl_tag.component_idx`` must be ``-1``.
For the other three types, if the btf_decl_tag attribute is
@@ -502,12 +499,21 @@ the attribute is applied to a ``struct``/``union`` member or
a ``func`` argument, and ``btf_decl_tag.component_idx`` should be a
valid index (starting from 0) pointing to a member or an argument.
+If ``info.kind_flag`` is 0, then this is a normal decl tag, and the
+``name_off`` encodes btf_decl_tag attribute string.
+
+If ``info.kind_flag`` is 1, then the decl tag represents an arbitrary
+__attribute__. In this case, ``name_off`` encodes a string
+representing the attribute-list of the attribute specifier. For
+example, for an ``__attribute__((aligned(4)))`` the string's contents
+is ``aligned(4)``.
+
2.2.18 BTF_KIND_TYPE_TAG
~~~~~~~~~~~~~~~~~~~~~~~~
``struct btf_type`` encoding requirement:
* ``name_off``: offset to a non-empty string
- * ``info.kind_flag``: 0
+ * ``info.kind_flag``: 0 or 1
* ``info.kind``: BTF_KIND_TYPE_TAG
* ``info.vlen``: 0
* ``type``: the type with ``btf_type_tag`` attribute
@@ -525,6 +531,14 @@ type_tag, then zero or more const/volatile/restrict/typedef
and finally the base type. The base type is one of
int, ptr, array, struct, union, enum, func_proto and float types.
+Similarly to decl tags, if the ``info.kind_flag`` is 0, then this is a
+normal type tag, and the ``name_off`` encodes btf_type_tag attribute
+string.
+
+If ``info.kind_flag`` is 1, then the type tag represents an arbitrary
+__attribute__, and the ``name_off`` encodes a string representing the
+attribute-list of the attribute specifier.
+
2.2.19 BTF_KIND_ENUM64
~~~~~~~~~~~~~~~~~~~~~~
@@ -551,6 +565,38 @@ The ``btf_enum64`` encoding:
If the original enum value is signed and the size is less than 8,
that value will be sign extended into 8 bytes.
+2.3 Constant Values
+-------------------
+
+.. _BTF_Function_Linkage_Constants:
+
+2.3.1 Function Linkage Constant Values
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.. table:: Function Linkage Values and Meanings
+
+ =================== ===== ===========
+ kind value description
+ =================== ===== ===========
+ ``BTF_FUNC_STATIC`` 0x0 definition of subprogram not visible outside containing compilation unit
+ ``BTF_FUNC_GLOBAL`` 0x1 definition of subprogram visible outside containing compilation unit
+ ``BTF_FUNC_EXTERN`` 0x2 declaration of a subprogram whose definition is outside the containing compilation unit
+ =================== ===== ===========
+
+
+.. _BTF_Var_Linkage_Constants:
+
+2.3.2 Variable Linkage Constant Values
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.. table:: Variable Linkage Values and Meanings
+
+ ============================ ===== ===========
+ kind value description
+ ============================ ===== ===========
+ ``BTF_VAR_STATIC`` 0x0 definition of global variable not visible outside containing compilation unit
+ ``BTF_VAR_GLOBAL_ALLOCATED`` 0x1 definition of global variable visible outside containing compilation unit
+ ``BTF_VAR_GLOBAL_EXTERN`` 0x2 declaration of global variable whose definition is outside the containing compilation unit
+ ============================ ===== ===========
+
3. BTF Kernel API
=================
@@ -726,8 +772,8 @@ same as the one describe in :ref:`BTF_Type_String`.
4.2 .BTF.ext section
--------------------
-The .BTF.ext section encodes func_info and line_info which needs loader
-manipulation before loading into the kernel.
+The .BTF.ext section encodes func_info, line_info and CO-RE relocations
+which needs loader manipulation before loading into the kernel.
The specification for .BTF.ext section is defined at ``tools/lib/bpf/btf.h``
and ``tools/lib/bpf/btf.c``.
@@ -745,15 +791,20 @@ The current header of .BTF.ext section::
__u32 func_info_len;
__u32 line_info_off;
__u32 line_info_len;
+
+ /* optional part of .BTF.ext header */
+ __u32 core_relo_off;
+ __u32 core_relo_len;
};
It is very similar to .BTF section. Instead of type/string section, it
-contains func_info and line_info section. See :ref:`BPF_Prog_Load` for details
-about func_info and line_info record format.
+contains func_info, line_info and core_relo sub-sections.
+See :ref:`BPF_Prog_Load` for details about func_info and line_info
+record format.
The func_info is organized as below.::
- func_info_rec_size
+ func_info_rec_size /* __u32 value */
btf_ext_info_sec for section #1 /* func_info for section #1 */
btf_ext_info_sec for section #2 /* func_info for section #2 */
...
@@ -773,7 +824,7 @@ Here, num_info must be greater than 0.
The line_info is organized as below.::
- line_info_rec_size
+ line_info_rec_size /* __u32 value */
btf_ext_info_sec for section #1 /* line_info for section #1 */
btf_ext_info_sec for section #2 /* line_info for section #2 */
...
@@ -787,7 +838,21 @@ kernel API, the ``insn_off`` is the instruction offset in the unit of ``struct
bpf_insn``. For ELF API, the ``insn_off`` is the byte offset from the
beginning of section (``btf_ext_info_sec->sec_name_off``).
-4.2 .BTF_ids section
+The core_relo is organized as below.::
+
+ core_relo_rec_size /* __u32 value */
+ btf_ext_info_sec for section #1 /* core_relo for section #1 */
+ btf_ext_info_sec for section #2 /* core_relo for section #2 */
+
+``core_relo_rec_size`` specifies the size of ``bpf_core_relo``
+structure when .BTF.ext is generated. All ``bpf_core_relo`` structures
+within a single ``btf_ext_info_sec`` describe relocations applied to
+section named by ``btf_ext_info_sec->sec_name_off``.
+
+See :ref:`Documentation/bpf/llvm_reloc.rst <btf-co-re-relocations>`
+for more information on CO-RE relocations.
+
+4.3 .BTF_ids section
--------------------
The .BTF_ids section encodes BTF ID values that are used within the kernel.
@@ -848,6 +913,81 @@ and is used as a filter when resolving the BTF ID value.
All the BTF ID lists and sets are compiled in the .BTF_ids section and
resolved during the linking phase of kernel build by ``resolve_btfids`` tool.
+4.4 .BTF.base section
+---------------------
+Split BTF - where the .BTF section only contains types not in the associated
+base .BTF section - is an extremely efficient way to encode type information
+for kernel modules, since they generally consist of a few module-specific
+types along with a large set of shared kernel types. The former are encoded
+in split BTF, while the latter are encoded in base BTF, resulting in more
+compact representations. A type in split BTF that refers to a type in
+base BTF refers to it using its base BTF ID, and split BTF IDs start
+at last_base_BTF_ID + 1.
+
+The downside of this approach however is that this makes the split BTF
+somewhat brittle - when the base BTF changes, base BTF ID references are
+no longer valid and the split BTF itself becomes useless. The role of the
+.BTF.base section is to make split BTF more resilient for cases where
+the base BTF may change, as is the case for kernel modules not built every
+time the kernel is for example. .BTF.base contains named base types; INTs,
+FLOATs, STRUCTs, UNIONs, ENUM[64]s and FWDs. INTs and FLOATs are fully
+described in .BTF.base sections, while composite types like structs
+and unions are not fully defined - the .BTF.base type simply serves as
+a description of the type the split BTF referred to, so structs/unions
+have 0 members in the .BTF.base section. ENUM[64]s are similarly recorded
+with 0 members. Any other types are added to the split BTF. This
+distillation process then leaves us with a .BTF.base section with
+such minimal descriptions of base types and .BTF split section which refers
+to those base types. Later, we can relocate the split BTF using both the
+information stored in the .BTF.base section and the new .BTF base; the type
+information in the .BTF.base section allows us to update the split BTF
+references to point at the corresponding new base BTF IDs.
+
+BTF relocation happens on kernel module load when a kernel module has a
+.BTF.base section, and libbpf also provides a btf__relocate() API to
+accomplish this.
+
+As an example consider the following base BTF::
+
+ [1] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED
+ [2] STRUCT 'foo' size=8 vlen=2
+ 'f1' type_id=1 bits_offset=0
+ 'f2' type_id=1 bits_offset=32
+
+...and associated split BTF::
+
+ [3] PTR '(anon)' type_id=2
+
+i.e. split BTF describes a pointer to struct foo { int f1; int f2 };
+
+.BTF.base will consist of::
+
+ [1] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED
+ [2] STRUCT 'foo' size=8 vlen=0
+
+If we relocate the split BTF later using the following new base BTF::
+
+ [1] INT 'long unsigned int' size=8 bits_offset=0 nr_bits=64 encoding=(none)
+ [2] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED
+ [3] STRUCT 'foo' size=8 vlen=2
+ 'f1' type_id=2 bits_offset=0
+ 'f2' type_id=2 bits_offset=32
+
+...we can use our .BTF.base description to know that the split BTF reference
+is to struct foo, and relocation results in new split BTF::
+
+ [4] PTR '(anon)' type_id=3
+
+Note that we had to update BTF ID and start BTF ID for the split BTF.
+
+So we see how .BTF.base plays the role of facilitating later relocation,
+leading to more resilient split BTF.
+
+.BTF.base sections will be generated automatically for out-of-tree kernel module
+builds - i.e. where KBUILD_EXTMOD is set (as it would be for "make M=path/2/mod"
+cases). .BTF.base generation requires pahole support for the "distilled_base"
+BTF feature; this is available in pahole v1.28 and later.
+
5. Using BTF
============
@@ -990,7 +1130,7 @@ format.::
} g2;
int main() { return 0; }
int test() { return 0; }
- -bash-4.4$ clang -c -g -O2 -target bpf t2.c
+ -bash-4.4$ clang -c -g -O2 --target=bpf t2.c
-bash-4.4$ readelf -S t2.o
......
[ 8] .BTF PROGBITS 0000000000000000 00000247
@@ -1000,7 +1140,7 @@ format.::
[10] .rel.BTF.ext REL 0000000000000000 000007e0
0000000000000040 0000000000000010 16 9 8
......
- -bash-4.4$ clang -S -g -O2 -target bpf t2.c
+ -bash-4.4$ clang -S -g -O2 --target=bpf t2.c
-bash-4.4$ cat t2.s
......
.section .BTF,"",@progbits
diff --git a/Documentation/bpf/cpumasks.rst b/Documentation/bpf/cpumasks.rst
index 41efd8874eeb..b5d47a04da5d 100644
--- a/Documentation/bpf/cpumasks.rst
+++ b/Documentation/bpf/cpumasks.rst
@@ -351,19 +351,20 @@ In addition to the above kfuncs, there is also a set of read-only kfuncs that
can be used to query the contents of cpumasks.
.. kernel-doc:: kernel/bpf/cpumask.c
- :identifiers: bpf_cpumask_first bpf_cpumask_first_zero bpf_cpumask_test_cpu
+ :identifiers: bpf_cpumask_first bpf_cpumask_first_zero bpf_cpumask_first_and
+ bpf_cpumask_test_cpu bpf_cpumask_weight
.. kernel-doc:: kernel/bpf/cpumask.c
:identifiers: bpf_cpumask_equal bpf_cpumask_intersects bpf_cpumask_subset
bpf_cpumask_empty bpf_cpumask_full
.. kernel-doc:: kernel/bpf/cpumask.c
- :identifiers: bpf_cpumask_any bpf_cpumask_any_and
+ :identifiers: bpf_cpumask_any_distribute bpf_cpumask_any_and_distribute
----
Some example usages of these querying kfuncs were shown above. We will not
-replicate those exmaples here. Note, however, that all of the aforementioned
+replicate those examples here. Note, however, that all of the aforementioned
kfuncs are tested in `tools/testing/selftests/bpf/progs/cpumask_success.c`_, so
please take a look there if you're looking for more examples of how they can be
used.
diff --git a/Documentation/bpf/fs_kfuncs.rst b/Documentation/bpf/fs_kfuncs.rst
new file mode 100644
index 000000000000..8762c3233a3d
--- /dev/null
+++ b/Documentation/bpf/fs_kfuncs.rst
@@ -0,0 +1,21 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+.. _fs_kfuncs-header-label:
+
+=====================
+BPF filesystem kfuncs
+=====================
+
+BPF LSM programs need to access filesystem data from LSM hooks. The following
+BPF kfuncs can be used to get these data.
+
+ * ``bpf_get_file_xattr()``
+
+ * ``bpf_get_fsverity_digest()``
+
+To avoid recursions, these kfuncs follow the following rules:
+
+1. These kfuncs are only permitted from BPF LSM function.
+2. These kfuncs should not call into other LSM hooks, i.e. security_*(). For
+ example, ``bpf_get_file_xattr()`` does not use ``vfs_getxattr()``, because
+ the latter calls LSM hook ``security_inode_getxattr``.
diff --git a/Documentation/bpf/graph_ds_impl.rst b/Documentation/bpf/graph_ds_impl.rst
index 61274622b71d..06288cc719b3 100644
--- a/Documentation/bpf/graph_ds_impl.rst
+++ b/Documentation/bpf/graph_ds_impl.rst
@@ -23,7 +23,7 @@ Introduction
The BPF map API has historically been the main way to expose data structures
of various types for use within BPF programs. Some data structures fit naturally
-with the map API (HASH, ARRAY), others less so. Consequentially, programs
+with the map API (HASH, ARRAY), others less so. Consequently, programs
interacting with the latter group of data structures can be hard to parse
for kernel programmers without previous BPF experience.
diff --git a/Documentation/bpf/index.rst b/Documentation/bpf/index.rst
index dbb39e8f9889..0bb5cb8157f1 100644
--- a/Documentation/bpf/index.rst
+++ b/Documentation/bpf/index.rst
@@ -12,15 +12,16 @@ that goes into great technical depth about the BPF Architecture.
.. toctree::
:maxdepth: 1
- instruction-set
verifier
libbpf/index
+ standardization/index
btf
faq
syscall_api
helpers
kfuncs
cpumasks
+ fs_kfuncs
programs
maps
bpf_prog_run
diff --git a/Documentation/bpf/instruction-set.rst b/Documentation/bpf/instruction-set.rst
deleted file mode 100644
index 492980ece1ab..000000000000
--- a/Documentation/bpf/instruction-set.rst
+++ /dev/null
@@ -1,475 +0,0 @@
-.. contents::
-.. sectnum::
-
-========================================
-eBPF Instruction Set Specification, v1.0
-========================================
-
-This document specifies version 1.0 of the eBPF instruction set.
-
-Documentation conventions
-=========================
-
-For brevity, this document uses the type notion "u64", "u32", etc.
-to mean an unsigned integer whose width is the specified number of bits,
-and "s32", etc. to mean a signed integer of the specified number of bits.
-
-Registers and calling convention
-================================
-
-eBPF has 10 general purpose registers and a read-only frame pointer register,
-all of which are 64-bits wide.
-
-The eBPF calling convention is defined as:
-
-* R0: return value from function calls, and exit value for eBPF programs
-* R1 - R5: arguments for function calls
-* R6 - R9: callee saved registers that function calls will preserve
-* R10: read-only frame pointer to access stack
-
-R0 - R5 are scratch registers and eBPF programs needs to spill/fill them if
-necessary across calls.
-
-Instruction encoding
-====================
-
-eBPF has two instruction encodings:
-
-* the basic instruction encoding, which uses 64 bits to encode an instruction
-* the wide instruction encoding, which appends a second 64-bit immediate (i.e.,
- constant) value after the basic instruction for a total of 128 bits.
-
-The fields conforming an encoded basic instruction are stored in the
-following order::
-
- opcode:8 src_reg:4 dst_reg:4 offset:16 imm:32 // In little-endian BPF.
- opcode:8 dst_reg:4 src_reg:4 offset:16 imm:32 // In big-endian BPF.
-
-**imm**
- signed integer immediate value
-
-**offset**
- signed integer offset used with pointer arithmetic
-
-**src_reg**
- the source register number (0-10), except where otherwise specified
- (`64-bit immediate instructions`_ reuse this field for other purposes)
-
-**dst_reg**
- destination register number (0-10)
-
-**opcode**
- operation to perform
-
-Note that the contents of multi-byte fields ('imm' and 'offset') are
-stored using big-endian byte ordering in big-endian BPF and
-little-endian byte ordering in little-endian BPF.
-
-For example::
-
- opcode offset imm assembly
- src_reg dst_reg
- 07 0 1 00 00 44 33 22 11 r1 += 0x11223344 // little
- dst_reg src_reg
- 07 1 0 00 00 11 22 33 44 r1 += 0x11223344 // big
-
-Note that most instructions do not use all of the fields.
-Unused fields shall be cleared to zero.
-
-As discussed below in `64-bit immediate instructions`_, a 64-bit immediate
-instruction uses a 64-bit immediate value that is constructed as follows.
-The 64 bits following the basic instruction contain a pseudo instruction
-using the same format but with opcode, dst_reg, src_reg, and offset all set to zero,
-and imm containing the high 32 bits of the immediate value.
-
-This is depicted in the following figure::
-
- basic_instruction
- .-----------------------------.
- | |
- code:8 regs:8 offset:16 imm:32 unused:32 imm:32
- | |
- '--------------'
- pseudo instruction
-
-Thus the 64-bit immediate value is constructed as follows:
-
- imm64 = (next_imm << 32) | imm
-
-where 'next_imm' refers to the imm value of the pseudo instruction
-following the basic instruction. The unused bytes in the pseudo
-instruction are reserved and shall be cleared to zero.
-
-Instruction classes
--------------------
-
-The three LSB bits of the 'opcode' field store the instruction class:
-
-========= ===== =============================== ===================================
-class value description reference
-========= ===== =============================== ===================================
-BPF_LD 0x00 non-standard load operations `Load and store instructions`_
-BPF_LDX 0x01 load into register operations `Load and store instructions`_
-BPF_ST 0x02 store from immediate operations `Load and store instructions`_
-BPF_STX 0x03 store from register operations `Load and store instructions`_
-BPF_ALU 0x04 32-bit arithmetic operations `Arithmetic and jump instructions`_
-BPF_JMP 0x05 64-bit jump operations `Arithmetic and jump instructions`_
-BPF_JMP32 0x06 32-bit jump operations `Arithmetic and jump instructions`_
-BPF_ALU64 0x07 64-bit arithmetic operations `Arithmetic and jump instructions`_
-========= ===== =============================== ===================================
-
-Arithmetic and jump instructions
-================================
-
-For arithmetic and jump instructions (``BPF_ALU``, ``BPF_ALU64``, ``BPF_JMP`` and
-``BPF_JMP32``), the 8-bit 'opcode' field is divided into three parts:
-
-============== ====== =================
-4 bits (MSB) 1 bit 3 bits (LSB)
-============== ====== =================
-code source instruction class
-============== ====== =================
-
-**code**
- the operation code, whose meaning varies by instruction class
-
-**source**
- the source operand location, which unless otherwise specified is one of:
-
- ====== ===== ==============================================
- source value description
- ====== ===== ==============================================
- BPF_K 0x00 use 32-bit 'imm' value as source operand
- BPF_X 0x08 use 'src_reg' register value as source operand
- ====== ===== ==============================================
-
-**instruction class**
- the instruction class (see `Instruction classes`_)
-
-Arithmetic instructions
------------------------
-
-``BPF_ALU`` uses 32-bit wide operands while ``BPF_ALU64`` uses 64-bit wide operands for
-otherwise identical operations.
-The 'code' field encodes the operation as below, where 'src' and 'dst' refer
-to the values of the source and destination registers, respectively.
-
-======== ===== ==========================================================
-code value description
-======== ===== ==========================================================
-BPF_ADD 0x00 dst += src
-BPF_SUB 0x10 dst -= src
-BPF_MUL 0x20 dst \*= src
-BPF_DIV 0x30 dst = (src != 0) ? (dst / src) : 0
-BPF_OR 0x40 dst \|= src
-BPF_AND 0x50 dst &= src
-BPF_LSH 0x60 dst <<= src
-BPF_RSH 0x70 dst >>= src
-BPF_NEG 0x80 dst = ~src
-BPF_MOD 0x90 dst = (src != 0) ? (dst % src) : dst
-BPF_XOR 0xa0 dst ^= src
-BPF_MOV 0xb0 dst = src
-BPF_ARSH 0xc0 sign extending shift right
-BPF_END 0xd0 byte swap operations (see `Byte swap instructions`_ below)
-======== ===== ==========================================================
-
-Underflow and overflow are allowed during arithmetic operations, meaning
-the 64-bit or 32-bit value will wrap. If eBPF program execution would
-result in division by zero, the destination register is instead set to zero.
-If execution would result in modulo by zero, for ``BPF_ALU64`` the value of
-the destination register is unchanged whereas for ``BPF_ALU`` the upper
-32 bits of the destination register are zeroed.
-
-``BPF_ADD | BPF_X | BPF_ALU`` means::
-
- dst = (u32) ((u32) dst + (u32) src)
-
-where '(u32)' indicates that the upper 32 bits are zeroed.
-
-``BPF_ADD | BPF_X | BPF_ALU64`` means::
-
- dst = dst + src
-
-``BPF_XOR | BPF_K | BPF_ALU`` means::
-
- dst = (u32) dst ^ (u32) imm32
-
-``BPF_XOR | BPF_K | BPF_ALU64`` means::
-
- dst = dst ^ imm32
-
-Also note that the division and modulo operations are unsigned. Thus, for
-``BPF_ALU``, 'imm' is first interpreted as an unsigned 32-bit value, whereas
-for ``BPF_ALU64``, 'imm' is first sign extended to 64 bits and the result
-interpreted as an unsigned 64-bit value. There are no instructions for
-signed division or modulo.
-
-Byte swap instructions
-~~~~~~~~~~~~~~~~~~~~~~
-
-The byte swap instructions use an instruction class of ``BPF_ALU`` and a 4-bit
-'code' field of ``BPF_END``.
-
-The byte swap instructions operate on the destination register
-only and do not use a separate source register or immediate value.
-
-The 1-bit source operand field in the opcode is used to select what byte
-order the operation convert from or to:
-
-========= ===== =================================================
-source value description
-========= ===== =================================================
-BPF_TO_LE 0x00 convert between host byte order and little endian
-BPF_TO_BE 0x08 convert between host byte order and big endian
-========= ===== =================================================
-
-The 'imm' field encodes the width of the swap operations. The following widths
-are supported: 16, 32 and 64.
-
-Examples:
-
-``BPF_ALU | BPF_TO_LE | BPF_END`` with imm = 16 means::
-
- dst = htole16(dst)
-
-``BPF_ALU | BPF_TO_BE | BPF_END`` with imm = 64 means::
-
- dst = htobe64(dst)
-
-Jump instructions
------------------
-
-``BPF_JMP32`` uses 32-bit wide operands while ``BPF_JMP`` uses 64-bit wide operands for
-otherwise identical operations.
-The 'code' field encodes the operation as below:
-
-======== ===== === =========================================== =========================================
-code value src description notes
-======== ===== === =========================================== =========================================
-BPF_JA 0x0 0x0 PC += offset BPF_JMP only
-BPF_JEQ 0x1 any PC += offset if dst == src
-BPF_JGT 0x2 any PC += offset if dst > src unsigned
-BPF_JGE 0x3 any PC += offset if dst >= src unsigned
-BPF_JSET 0x4 any PC += offset if dst & src
-BPF_JNE 0x5 any PC += offset if dst != src
-BPF_JSGT 0x6 any PC += offset if dst > src signed
-BPF_JSGE 0x7 any PC += offset if dst >= src signed
-BPF_CALL 0x8 0x0 call helper function by address see `Helper functions`_
-BPF_CALL 0x8 0x1 call PC += offset see `Program-local functions`_
-BPF_CALL 0x8 0x2 call helper function by BTF ID see `Helper functions`_
-BPF_EXIT 0x9 0x0 return BPF_JMP only
-BPF_JLT 0xa any PC += offset if dst < src unsigned
-BPF_JLE 0xb any PC += offset if dst <= src unsigned
-BPF_JSLT 0xc any PC += offset if dst < src signed
-BPF_JSLE 0xd any PC += offset if dst <= src signed
-======== ===== === =========================================== =========================================
-
-The eBPF program needs to store the return value into register R0 before doing a
-``BPF_EXIT``.
-
-Example:
-
-``BPF_JSGE | BPF_X | BPF_JMP32`` (0x7e) means::
-
- if (s32)dst s>= (s32)src goto +offset
-
-where 's>=' indicates a signed '>=' comparison.
-
-Helper functions
-~~~~~~~~~~~~~~~~
-
-Helper functions are a concept whereby BPF programs can call into a
-set of function calls exposed by the underlying platform.
-
-Historically, each helper function was identified by an address
-encoded in the imm field. The available helper functions may differ
-for each program type, but address values are unique across all program types.
-
-Platforms that support the BPF Type Format (BTF) support identifying
-a helper function by a BTF ID encoded in the imm field, where the BTF ID
-identifies the helper name and type.
-
-Program-local functions
-~~~~~~~~~~~~~~~~~~~~~~~
-Program-local functions are functions exposed by the same BPF program as the
-caller, and are referenced by offset from the call instruction, similar to
-``BPF_JA``. A ``BPF_EXIT`` within the program-local function will return to
-the caller.
-
-Load and store instructions
-===========================
-
-For load and store instructions (``BPF_LD``, ``BPF_LDX``, ``BPF_ST``, and ``BPF_STX``), the
-8-bit 'opcode' field is divided as:
-
-============ ====== =================
-3 bits (MSB) 2 bits 3 bits (LSB)
-============ ====== =================
-mode size instruction class
-============ ====== =================
-
-The mode modifier is one of:
-
- ============= ===== ==================================== =============
- mode modifier value description reference
- ============= ===== ==================================== =============
- BPF_IMM 0x00 64-bit immediate instructions `64-bit immediate instructions`_
- BPF_ABS 0x20 legacy BPF packet access (absolute) `Legacy BPF Packet access instructions`_
- BPF_IND 0x40 legacy BPF packet access (indirect) `Legacy BPF Packet access instructions`_
- BPF_MEM 0x60 regular load and store operations `Regular load and store operations`_
- BPF_ATOMIC 0xc0 atomic operations `Atomic operations`_
- ============= ===== ==================================== =============
-
-The size modifier is one of:
-
- ============= ===== =====================
- size modifier value description
- ============= ===== =====================
- BPF_W 0x00 word (4 bytes)
- BPF_H 0x08 half word (2 bytes)
- BPF_B 0x10 byte
- BPF_DW 0x18 double word (8 bytes)
- ============= ===== =====================
-
-Regular load and store operations
----------------------------------
-
-The ``BPF_MEM`` mode modifier is used to encode regular load and store
-instructions that transfer data between a register and memory.
-
-``BPF_MEM | <size> | BPF_STX`` means::
-
- *(size *) (dst + offset) = src
-
-``BPF_MEM | <size> | BPF_ST`` means::
-
- *(size *) (dst + offset) = imm32
-
-``BPF_MEM | <size> | BPF_LDX`` means::
-
- dst = *(size *) (src + offset)
-
-Where size is one of: ``BPF_B``, ``BPF_H``, ``BPF_W``, or ``BPF_DW``.
-
-Atomic operations
------------------
-
-Atomic operations are operations that operate on memory and can not be
-interrupted or corrupted by other access to the same memory region
-by other eBPF programs or means outside of this specification.
-
-All atomic operations supported by eBPF are encoded as store operations
-that use the ``BPF_ATOMIC`` mode modifier as follows:
-
-* ``BPF_ATOMIC | BPF_W | BPF_STX`` for 32-bit operations
-* ``BPF_ATOMIC | BPF_DW | BPF_STX`` for 64-bit operations
-* 8-bit and 16-bit wide atomic operations are not supported.
-
-The 'imm' field is used to encode the actual atomic operation.
-Simple atomic operation use a subset of the values defined to encode
-arithmetic operations in the 'imm' field to encode the atomic operation:
-
-======== ===== ===========
-imm value description
-======== ===== ===========
-BPF_ADD 0x00 atomic add
-BPF_OR 0x40 atomic or
-BPF_AND 0x50 atomic and
-BPF_XOR 0xa0 atomic xor
-======== ===== ===========
-
-
-``BPF_ATOMIC | BPF_W | BPF_STX`` with 'imm' = BPF_ADD means::
-
- *(u32 *)(dst + offset) += src
-
-``BPF_ATOMIC | BPF_DW | BPF_STX`` with 'imm' = BPF ADD means::
-
- *(u64 *)(dst + offset) += src
-
-In addition to the simple atomic operations, there also is a modifier and
-two complex atomic operations:
-
-=========== ================ ===========================
-imm value description
-=========== ================ ===========================
-BPF_FETCH 0x01 modifier: return old value
-BPF_XCHG 0xe0 | BPF_FETCH atomic exchange
-BPF_CMPXCHG 0xf0 | BPF_FETCH atomic compare and exchange
-=========== ================ ===========================
-
-The ``BPF_FETCH`` modifier is optional for simple atomic operations, and
-always set for the complex atomic operations. If the ``BPF_FETCH`` flag
-is set, then the operation also overwrites ``src`` with the value that
-was in memory before it was modified.
-
-The ``BPF_XCHG`` operation atomically exchanges ``src`` with the value
-addressed by ``dst + offset``.
-
-The ``BPF_CMPXCHG`` operation atomically compares the value addressed by
-``dst + offset`` with ``R0``. If they match, the value addressed by
-``dst + offset`` is replaced with ``src``. In either case, the
-value that was at ``dst + offset`` before the operation is zero-extended
-and loaded back to ``R0``.
-
-64-bit immediate instructions
------------------------------
-
-Instructions with the ``BPF_IMM`` 'mode' modifier use the wide instruction
-encoding defined in `Instruction encoding`_, and use the 'src' field of the
-basic instruction to hold an opcode subtype.
-
-The following table defines a set of ``BPF_IMM | BPF_DW | BPF_LD`` instructions
-with opcode subtypes in the 'src' field, using new terms such as "map"
-defined further below:
-
-========================= ====== === ========================================= =========== ==============
-opcode construction opcode src pseudocode imm type dst type
-========================= ====== === ========================================= =========== ==============
-BPF_IMM | BPF_DW | BPF_LD 0x18 0x0 dst = imm64 integer integer
-BPF_IMM | BPF_DW | BPF_LD 0x18 0x1 dst = map_by_fd(imm) map fd map
-BPF_IMM | BPF_DW | BPF_LD 0x18 0x2 dst = map_val(map_by_fd(imm)) + next_imm map fd data pointer
-BPF_IMM | BPF_DW | BPF_LD 0x18 0x3 dst = var_addr(imm) variable id data pointer
-BPF_IMM | BPF_DW | BPF_LD 0x18 0x4 dst = code_addr(imm) integer code pointer
-BPF_IMM | BPF_DW | BPF_LD 0x18 0x5 dst = map_by_idx(imm) map index map
-BPF_IMM | BPF_DW | BPF_LD 0x18 0x6 dst = map_val(map_by_idx(imm)) + next_imm map index data pointer
-========================= ====== === ========================================= =========== ==============
-
-where
-
-* map_by_fd(imm) means to convert a 32-bit file descriptor into an address of a map (see `Maps`_)
-* map_by_idx(imm) means to convert a 32-bit index into an address of a map
-* map_val(map) gets the address of the first value in a given map
-* var_addr(imm) gets the address of a platform variable (see `Platform Variables`_) with a given id
-* code_addr(imm) gets the address of the instruction at a specified relative offset in number of (64-bit) instructions
-* the 'imm type' can be used by disassemblers for display
-* the 'dst type' can be used for verification and JIT compilation purposes
-
-Maps
-~~~~
-
-Maps are shared memory regions accessible by eBPF programs on some platforms.
-A map can have various semantics as defined in a separate document, and may or
-may not have a single contiguous memory region, but the 'map_val(map)' is
-currently only defined for maps that do have a single contiguous memory region.
-
-Each map can have a file descriptor (fd) if supported by the platform, where
-'map_by_fd(imm)' means to get the map with the specified file descriptor. Each
-BPF program can also be defined to use a set of maps associated with the
-program at load time, and 'map_by_idx(imm)' means to get the map with the given
-index in the set associated with the BPF program containing the instruction.
-
-Platform Variables
-~~~~~~~~~~~~~~~~~~
-
-Platform variables are memory regions, identified by integer ids, exposed by
-the runtime and accessible by BPF programs on some platforms. The
-'var_addr(imm)' operation means to get the address of the memory region
-identified by the given id.
-
-Legacy BPF Packet access instructions
--------------------------------------
-
-eBPF previously introduced special instructions for access to packet data that were
-carried over from classic BPF. However, these instructions are
-deprecated and should no longer be used.
diff --git a/Documentation/bpf/kfuncs.rst b/Documentation/bpf/kfuncs.rst
index ea2516374d92..e38941370b90 100644
--- a/Documentation/bpf/kfuncs.rst
+++ b/Documentation/bpf/kfuncs.rst
@@ -37,16 +37,14 @@ prototype in a header for the wrapper kfunc.
An example is given below::
/* Disables missing prototype warnings */
- __diag_push();
- __diag_ignore_all("-Wmissing-prototypes",
- "Global kfuncs as their definitions will be in BTF");
+ __bpf_kfunc_start_defs();
__bpf_kfunc struct task_struct *bpf_find_get_task_by_vpid(pid_t nr)
{
return find_get_task_by_vpid(nr);
}
- __diag_pop();
+ __bpf_kfunc_end_defs();
A wrapper kfunc is often needed when we need to annotate parameters of the
kfunc. Otherwise one may directly make the kfunc visible to the BPF program by
@@ -100,7 +98,7 @@ Hence, whenever a constant scalar argument is accepted by a kfunc which is not a
size parameter, and the value of the constant matters for program safety, __k
suffix should be used.
-2.2.2 __uninit Annotation
+2.2.3 __uninit Annotation
-------------------------
This annotation is used to indicate that the argument will be treated as
@@ -117,6 +115,68 @@ Here, the dynptr will be treated as an uninitialized dynptr. Without this
annotation, the verifier will reject the program if the dynptr passed in is
not initialized.
+2.2.4 __opt Annotation
+-------------------------
+
+This annotation is used to indicate that the buffer associated with an __sz or __szk
+argument may be null. If the function is passed a nullptr in place of the buffer,
+the verifier will not check that length is appropriate for the buffer. The kfunc is
+responsible for checking if this buffer is null before using it.
+
+An example is given below::
+
+ __bpf_kfunc void *bpf_dynptr_slice(..., void *buffer__opt, u32 buffer__szk)
+ {
+ ...
+ }
+
+Here, the buffer may be null. If buffer is not null, it at least of size buffer_szk.
+Either way, the returned buffer is either NULL, or of size buffer_szk. Without this
+annotation, the verifier will reject the program if a null pointer is passed in with
+a nonzero size.
+
+2.2.5 __str Annotation
+----------------------------
+This annotation is used to indicate that the argument is a constant string.
+
+An example is given below::
+
+ __bpf_kfunc bpf_get_file_xattr(..., const char *name__str, ...)
+ {
+ ...
+ }
+
+In this case, ``bpf_get_file_xattr()`` can be called as::
+
+ bpf_get_file_xattr(..., "xattr_name", ...);
+
+Or::
+
+ const char name[] = "xattr_name"; /* This need to be global */
+ int BPF_PROG(...)
+ {
+ ...
+ bpf_get_file_xattr(..., name, ...);
+ ...
+ }
+
+2.2.6 __prog Annotation
+---------------------------
+This annotation is used to indicate that the argument needs to be fixed up to
+the bpf_prog_aux of the caller BPF program. Any value passed into this argument
+is ignored, and rewritten by the verifier.
+
+An example is given below::
+
+ __bpf_kfunc int bpf_wq_set_callback_impl(struct bpf_wq *wq,
+ int (callback_fn)(void *map, int *key, void *value),
+ unsigned int flags,
+ void *aux__prog)
+ {
+ struct bpf_prog_aux *aux = aux__prog;
+ ...
+ }
+
.. _BPF_kfunc_nodef:
2.3 Using an existing kernel function
@@ -134,10 +194,10 @@ In addition to kfuncs' arguments, verifier may need more information about the
type of kfunc(s) being registered with the BPF subsystem. To do so, we define
flags on a set of kfuncs as follows::
- BTF_SET8_START(bpf_task_set)
+ BTF_KFUNCS_START(bpf_task_set)
BTF_ID_FLAGS(func, bpf_get_task_pid, KF_ACQUIRE | KF_RET_NULL)
BTF_ID_FLAGS(func, bpf_put_pid, KF_RELEASE)
- BTF_SET8_END(bpf_task_set)
+ BTF_KFUNCS_END(bpf_task_set)
This set encodes the BTF ID of each kfunc listed above, and encodes the flags
along with it. Ofcourse, it is also allowed to specify no flags.
@@ -206,23 +266,49 @@ absolutely no ABI stability guarantees.
As mentioned above, a nested pointer obtained from walking a trusted pointer is
no longer trusted, with one exception. If a struct type has a field that is
-guaranteed to be valid as long as its parent pointer is trusted, the
-``BTF_TYPE_SAFE_NESTED`` macro can be used to express that to the verifier as
-follows:
+guaranteed to be valid (trusted or rcu, as in KF_RCU description below) as long
+as its parent pointer is valid, the following macros can be used to express
+that to the verifier:
+
+* ``BTF_TYPE_SAFE_TRUSTED``
+* ``BTF_TYPE_SAFE_RCU``
+* ``BTF_TYPE_SAFE_RCU_OR_NULL``
+
+For example,
.. code-block:: c
- BTF_TYPE_SAFE_NESTED(struct task_struct) {
+ BTF_TYPE_SAFE_TRUSTED(struct socket) {
+ struct sock *sk;
+ };
+
+or
+
+.. code-block:: c
+
+ BTF_TYPE_SAFE_RCU(struct task_struct) {
const cpumask_t *cpus_ptr;
+ struct css_set __rcu *cgroups;
+ struct task_struct __rcu *real_parent;
+ struct task_struct *group_leader;
};
In other words, you must:
-1. Wrap the trusted pointer type in the ``BTF_TYPE_SAFE_NESTED`` macro.
+1. Wrap the valid pointer type in a ``BTF_TYPE_SAFE_*`` macro.
-2. Specify the type and name of the trusted nested field. This field must match
+2. Specify the type and name of the valid nested field. This field must match
the field in the original type definition exactly.
+A new type declared by a ``BTF_TYPE_SAFE_*`` macro also needs to be emitted so
+that it appears in BTF. For example, ``BTF_TYPE_SAFE_TRUSTED(struct socket)``
+is emitted in the ``type_is_trusted()`` function as follows:
+
+.. code-block:: c
+
+ BTF_TYPE_EMIT(BTF_TYPE_SAFE_TRUSTED(struct socket));
+
+
2.4.5 KF_SLEEPABLE flag
-----------------------
@@ -249,9 +335,26 @@ consider doing refcnt != 0 check, especially when returning a KF_ACQUIRE
pointer. Note as well that a KF_ACQUIRE kfunc that is KF_RCU should very likely
also be KF_RET_NULL.
+2.4.8 KF_RCU_PROTECTED flag
+---------------------------
+
+The KF_RCU_PROTECTED flag is used to indicate that the kfunc must be invoked in
+an RCU critical section. This is assumed by default in non-sleepable programs,
+and must be explicitly ensured by calling ``bpf_rcu_read_lock`` for sleepable
+ones.
+
+If the kfunc returns a pointer value, this flag also enforces that the returned
+pointer is RCU protected, and can only be used while the RCU critical section is
+active.
+
+The flag is distinct from the ``KF_RCU`` flag, which only ensures that its
+arguments are at least RCU protected pointers. This may transitively imply that
+RCU protection is ensured, but it does not work in cases of kfuncs which require
+RCU protection but do not take RCU protected arguments.
+
.. _KF_deprecated_flag:
-2.4.8 KF_DEPRECATED flag
+2.4.9 KF_DEPRECATED flag
------------------------
The KF_DEPRECATED flag is used for kfuncs which are scheduled to be
@@ -278,10 +381,10 @@ Once the kfunc is prepared for use, the final step to making it visible is
registering it with the BPF subsystem. Registration is done per BPF program
type. An example is shown below::
- BTF_SET8_START(bpf_task_set)
+ BTF_KFUNCS_START(bpf_task_set)
BTF_ID_FLAGS(func, bpf_get_task_pid, KF_ACQUIRE | KF_RET_NULL)
BTF_ID_FLAGS(func, bpf_put_pid, KF_RELEASE)
- BTF_SET8_END(bpf_task_set)
+ BTF_KFUNCS_END(bpf_task_set)
static const struct btf_kfunc_id_set bpf_task_kfunc_set = {
.owner = THIS_MODULE,
diff --git a/Documentation/bpf/libbpf/libbpf_overview.rst b/Documentation/bpf/libbpf/libbpf_overview.rst
index f36a2d4ffea2..f4d22f0c62b0 100644
--- a/Documentation/bpf/libbpf/libbpf_overview.rst
+++ b/Documentation/bpf/libbpf/libbpf_overview.rst
@@ -219,6 +219,14 @@ compilation and skeleton generation. Using Libbpf-rs will make building user
space part of the BPF application easier. Note that the BPF program themselves
must still be written in plain C.
+libbpf logging
+==============
+
+By default, libbpf logs informational and warning messages to stderr. The
+verbosity of these messages can be controlled by setting the environment
+variable LIBBPF_LOG_LEVEL to either warn, info, or debug. A custom log
+callback can be set using ``libbpf_set_print()``.
+
Additional Documentation
========================
diff --git a/Documentation/bpf/libbpf/program_types.rst b/Documentation/bpf/libbpf/program_types.rst
index ad4d4d5eecb0..3b837522834b 100644
--- a/Documentation/bpf/libbpf/program_types.rst
+++ b/Documentation/bpf/libbpf/program_types.rst
@@ -56,6 +56,16 @@ described in more detail in the footnotes.
| | ``BPF_CGROUP_UDP6_RECVMSG`` | ``cgroup/recvmsg6`` | |
+ +----------------------------------------+----------------------------------+-----------+
| | ``BPF_CGROUP_UDP6_SENDMSG`` | ``cgroup/sendmsg6`` | |
+| +----------------------------------------+----------------------------------+-----------+
+| | ``BPF_CGROUP_UNIX_CONNECT`` | ``cgroup/connect_unix`` | |
+| +----------------------------------------+----------------------------------+-----------+
+| | ``BPF_CGROUP_UNIX_SENDMSG`` | ``cgroup/sendmsg_unix`` | |
+| +----------------------------------------+----------------------------------+-----------+
+| | ``BPF_CGROUP_UNIX_RECVMSG`` | ``cgroup/recvmsg_unix`` | |
+| +----------------------------------------+----------------------------------+-----------+
+| | ``BPF_CGROUP_UNIX_GETPEERNAME`` | ``cgroup/getpeername_unix`` | |
+| +----------------------------------------+----------------------------------+-----------+
+| | ``BPF_CGROUP_UNIX_GETSOCKNAME`` | ``cgroup/getsockname_unix`` | |
+-------------------------------------------+----------------------------------------+----------------------------------+-----------+
| ``BPF_PROG_TYPE_CGROUP_SOCK`` | ``BPF_CGROUP_INET4_POST_BIND`` | ``cgroup/post_bind4`` | |
+ +----------------------------------------+----------------------------------+-----------+
@@ -90,10 +100,26 @@ described in more detail in the footnotes.
| | | ``uretprobe.s+`` [#uprobe]_ | Yes |
+ + +----------------------------------+-----------+
| | | ``usdt+`` [#usdt]_ | |
++ + +----------------------------------+-----------+
+| | | ``usdt.s+`` [#usdt]_ | Yes |
+ +----------------------------------------+----------------------------------+-----------+
| | ``BPF_TRACE_KPROBE_MULTI`` | ``kprobe.multi+`` [#kpmulti]_ | |
+ + +----------------------------------+-----------+
| | | ``kretprobe.multi+`` [#kpmulti]_ | |
++ +----------------------------------------+----------------------------------+-----------+
+| | ``BPF_TRACE_KPROBE_SESSION`` | ``kprobe.session+`` [#kpmulti]_ | |
++ +----------------------------------------+----------------------------------+-----------+
+| | ``BPF_TRACE_UPROBE_MULTI`` | ``uprobe.multi+`` [#upmul]_ | |
++ + +----------------------------------+-----------+
+| | | ``uprobe.multi.s+`` [#upmul]_ | Yes |
++ + +----------------------------------+-----------+
+| | | ``uretprobe.multi+`` [#upmul]_ | |
++ + +----------------------------------+-----------+
+| | | ``uretprobe.multi.s+`` [#upmul]_ | Yes |
++ +----------------------------------------+----------------------------------+-----------+
+| | ``BPF_TRACE_UPROBE_SESSION`` | ``uprobe.session+`` [#upmul]_ | |
++ + +----------------------------------+-----------+
+| | | ``uprobe.session.s+`` [#upmul]_ | Yes |
+-------------------------------------------+----------------------------------------+----------------------------------+-----------+
| ``BPF_PROG_TYPE_LIRC_MODE2`` | ``BPF_LIRC_MODE2`` | ``lirc_mode2`` | |
+-------------------------------------------+----------------------------------------+----------------------------------+-----------+
@@ -111,6 +137,8 @@ described in more detail in the footnotes.
+-------------------------------------------+----------------------------------------+----------------------------------+-----------+
| ``BPF_PROG_TYPE_LWT_XMIT`` | | ``lwt_xmit`` | |
+-------------------------------------------+----------------------------------------+----------------------------------+-----------+
+| ``BPF_PROG_TYPE_NETFILTER`` | | ``netfilter`` | |
++-------------------------------------------+----------------------------------------+----------------------------------+-----------+
| ``BPF_PROG_TYPE_PERF_EVENT`` | | ``perf_event`` | |
+-------------------------------------------+----------------------------------------+----------------------------------+-----------+
| ``BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE`` | | ``raw_tp.w+`` [#rawtp]_ | |
@@ -121,11 +149,23 @@ described in more detail in the footnotes.
+ + +----------------------------------+-----------+
| | | ``raw_tracepoint+`` | |
+-------------------------------------------+----------------------------------------+----------------------------------+-----------+
-| ``BPF_PROG_TYPE_SCHED_ACT`` | | ``action`` | |
+| ``BPF_PROG_TYPE_SCHED_ACT`` | | ``action`` [#tc_legacy]_ | |
+-------------------------------------------+----------------------------------------+----------------------------------+-----------+
-| ``BPF_PROG_TYPE_SCHED_CLS`` | | ``classifier`` | |
+| ``BPF_PROG_TYPE_SCHED_CLS`` | | ``classifier`` [#tc_legacy]_ | |
+ + +----------------------------------+-----------+
-| | | ``tc`` | |
+| | | ``tc`` [#tc_legacy]_ | |
++ +----------------------------------------+----------------------------------+-----------+
+| | ``BPF_NETKIT_PRIMARY`` | ``netkit/primary`` | |
++ +----------------------------------------+----------------------------------+-----------+
+| | ``BPF_NETKIT_PEER`` | ``netkit/peer`` | |
++ +----------------------------------------+----------------------------------+-----------+
+| | ``BPF_TCX_INGRESS`` | ``tc/ingress`` | |
++ +----------------------------------------+----------------------------------+-----------+
+| | ``BPF_TCX_EGRESS`` | ``tc/egress`` | |
++ +----------------------------------------+----------------------------------+-----------+
+| | ``BPF_TCX_INGRESS`` | ``tcx/ingress`` | |
++ +----------------------------------------+----------------------------------+-----------+
+| | ``BPF_TCX_EGRESS`` | ``tcx/egress`` | |
+-------------------------------------------+----------------------------------------+----------------------------------+-----------+
| ``BPF_PROG_TYPE_SK_LOOKUP`` | ``BPF_SK_LOOKUP`` | ``sk_lookup`` | |
+-------------------------------------------+----------------------------------------+----------------------------------+-----------+
@@ -145,7 +185,9 @@ described in more detail in the footnotes.
+-------------------------------------------+----------------------------------------+----------------------------------+-----------+
| ``BPF_PROG_TYPE_SOCK_OPS`` | ``BPF_CGROUP_SOCK_OPS`` | ``sockops`` | |
+-------------------------------------------+----------------------------------------+----------------------------------+-----------+
-| ``BPF_PROG_TYPE_STRUCT_OPS`` | | ``struct_ops+`` | |
+| ``BPF_PROG_TYPE_STRUCT_OPS`` | | ``struct_ops+`` [#struct_ops]_ | |
++ + +----------------------------------+-----------+
+| | | ``struct_ops.s+`` [#struct_ops]_ | Yes |
+-------------------------------------------+----------------------------------------+----------------------------------+-----------+
| ``BPF_PROG_TYPE_SYSCALL`` | | ``syscall`` | Yes |
+-------------------------------------------+----------------------------------------+----------------------------------+-----------+
@@ -193,11 +235,19 @@ described in more detail in the footnotes.
non-negative integer.
.. [#ksyscall] The ``ksyscall`` attach format is ``ksyscall/<syscall>``.
.. [#uprobe] The ``uprobe`` attach format is ``uprobe[.s]/<path>:<function>[+<offset>]``.
+.. [#upmul] The ``uprobe.multi`` attach format is ``uprobe.multi[.s]/<path>:<function-pattern>``
+ where ``function-pattern`` supports ``*`` and ``?`` wildcards.
.. [#usdt] The ``usdt`` attach format is ``usdt/<path>:<provider>:<name>``.
.. [#kpmulti] The ``kprobe.multi`` attach format is ``kprobe.multi/<pattern>`` where ``pattern``
supports ``*`` and ``?`` wildcards. Valid characters for pattern are
``a-zA-Z0-9_.*?``.
.. [#lsm] The ``lsm`` attachment format is ``lsm[.s]/<hook>``.
.. [#rawtp] The ``raw_tp`` attach format is ``raw_tracepoint[.w]/<tracepoint>``.
+.. [#tc_legacy] The ``tc``, ``classifier`` and ``action`` attach types are deprecated, use
+ ``tcx/*`` instead.
+.. [#struct_ops] The ``struct_ops`` attach format supports ``struct_ops[.s]/<name>`` convention,
+ but ``name`` is ignored and it is recommended to just use plain
+ ``SEC("struct_ops[.s]")``. The attachments are defined in a struct initializer
+ that is tagged with ``SEC(".struct_ops[.link]")``.
.. [#tp] The ``tracepoint`` attach format is ``tracepoint/<category>/<name>``.
.. [#iter] The ``iter`` attach format is ``iter[.s]/<struct-name>``.
diff --git a/Documentation/bpf/linux-notes.rst b/Documentation/bpf/linux-notes.rst
index 508d009d3bed..00d2693de025 100644
--- a/Documentation/bpf/linux-notes.rst
+++ b/Documentation/bpf/linux-notes.rst
@@ -45,7 +45,8 @@ On Linux, this integer is a BTF ID.
Legacy BPF Packet access instructions
=====================================
-As mentioned in the `ISA standard documentation <instruction-set.rst#legacy-bpf-packet-access-instructions>`_,
+As mentioned in the `ISA standard documentation
+<instruction-set.html#legacy-bpf-packet-access-instructions>`_,
Linux has special eBPF instructions for access to packet data that have been
carried over from classic BPF to retain the performance of legacy socket
filters running in the eBPF interpreter.
diff --git a/Documentation/bpf/llvm_reloc.rst b/Documentation/bpf/llvm_reloc.rst
index ca8957d5b671..44188e219d32 100644
--- a/Documentation/bpf/llvm_reloc.rst
+++ b/Documentation/bpf/llvm_reloc.rst
@@ -28,7 +28,7 @@ For example, for the following code::
return g1 + g2 + l1 + l2;
}
-Compiled with ``clang -target bpf -O2 -c test.c``, the following is
+Compiled with ``clang --target=bpf -O2 -c test.c``, the following is
the code with ``llvm-objdump -dr test.o``::
0: 18 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 r1 = 0 ll
@@ -48,7 +48,7 @@ the code with ``llvm-objdump -dr test.o``::
14: 0f 10 00 00 00 00 00 00 r0 += r1
15: 95 00 00 00 00 00 00 00 exit
-There are four relations in the above for four ``LD_imm64`` instructions.
+There are four relocations in the above for four ``LD_imm64`` instructions.
The following ``llvm-readelf -r test.o`` shows the binary values of the four
relocations::
@@ -79,14 +79,16 @@ The following is the symbol table with ``llvm-readelf -s test.o``::
The 6th entry is global variable ``g1`` with value 0.
Similarly, the second relocation is at ``.text`` offset ``0x18``, instruction 3,
-for global variable ``g2`` which has a symbol value 4, the offset
-from the start of ``.data`` section.
-
-The third and fourth relocations refers to static variables ``l1``
-and ``l2``. From ``.rel.text`` section above, it is not clear
-which symbols they really refers to as they both refers to
+has a type of ``R_BPF_64_64`` and refers to entry 7 in the symbol table.
+The second relocation resolves to global variable ``g2`` which has a symbol
+value 4. The symbol value represents the offset from the start of ``.data``
+section where the initial value of the global variable ``g2`` is stored.
+
+The third and fourth relocations refer to static variables ``l1``
+and ``l2``. From the ``.rel.text`` section above, it is not clear
+to which symbols they really refer as they both refer to
symbol table entry 4, symbol ``sec``, which has ``STT_SECTION`` type
-and represents a section. So for static variable or function,
+and represents a section. So for a static variable or function,
the section offset is written to the original insn
buffer, which is called ``A`` (addend). Looking at
above insn ``7`` and ``11``, they have section offset ``8`` and ``12``.
@@ -155,7 +157,7 @@ and ``call`` instructions. For example::
return gfunc(a, b) + lfunc(a, b) + global;
}
-Compiled with ``clang -target bpf -O2 -c test.c``, we will have
+Compiled with ``clang --target=bpf -O2 -c test.c``, we will have
following code with `llvm-objdump -dr test.o``::
Disassembly of section .text:
@@ -201,7 +203,7 @@ The following is an example to show how R_BPF_64_ABS64 could be generated::
int global() { return 0; }
struct t { void *g; } gbl = { global };
-Compiled with ``clang -target bpf -O2 -g -c test.c``, we will see a
+Compiled with ``clang --target=bpf -O2 -g -c test.c``, we will see a
relocation below in ``.data`` section with command
``llvm-readelf -r test.o``::
@@ -238,3 +240,307 @@ The .BTF/.BTF.ext sections has R_BPF_64_NODYLD32 relocations::
Offset Info Type Symbol's Value Symbol's Name
000000000000002c 0000000200000004 R_BPF_64_NODYLD32 0000000000000000 .text
0000000000000040 0000000200000004 R_BPF_64_NODYLD32 0000000000000000 .text
+
+.. _btf-co-re-relocations:
+
+=================
+CO-RE Relocations
+=================
+
+From object file point of view CO-RE mechanism is implemented as a set
+of CO-RE specific relocation records. These relocation records are not
+related to ELF relocations and are encoded in .BTF.ext section.
+See :ref:`Documentation/bpf/btf.rst <BTF_Ext_Section>` for more
+information on .BTF.ext structure.
+
+CO-RE relocations are applied to BPF instructions to update immediate
+or offset fields of the instruction at load time with information
+relevant for target kernel.
+
+Field to patch is selected basing on the instruction class:
+
+* For BPF_ALU, BPF_ALU64, BPF_LD `immediate` field is patched;
+* For BPF_LDX, BPF_STX, BPF_ST `offset` field is patched;
+* BPF_JMP, BPF_JMP32 instructions **should not** be patched.
+
+Relocation kinds
+================
+
+There are several kinds of CO-RE relocations that could be split in
+three groups:
+
+* Field-based - patch instruction with field related information, e.g.
+ change offset field of the BPF_LDX instruction to reflect offset
+ of a specific structure field in the target kernel.
+
+* Type-based - patch instruction with type related information, e.g.
+ change immediate field of the BPF_ALU move instruction to 0 or 1 to
+ reflect if specific type is present in the target kernel.
+
+* Enum-based - patch instruction with enum related information, e.g.
+ change immediate field of the BPF_LD_IMM64 instruction to reflect
+ value of a specific enum literal in the target kernel.
+
+The complete list of relocation kinds is represented by the following enum:
+
+.. code-block:: c
+
+ enum bpf_core_relo_kind {
+ BPF_CORE_FIELD_BYTE_OFFSET = 0, /* field byte offset */
+ BPF_CORE_FIELD_BYTE_SIZE = 1, /* field size in bytes */
+ BPF_CORE_FIELD_EXISTS = 2, /* field existence in target kernel */
+ BPF_CORE_FIELD_SIGNED = 3, /* field signedness (0 - unsigned, 1 - signed) */
+ BPF_CORE_FIELD_LSHIFT_U64 = 4, /* bitfield-specific left bitshift */
+ BPF_CORE_FIELD_RSHIFT_U64 = 5, /* bitfield-specific right bitshift */
+ BPF_CORE_TYPE_ID_LOCAL = 6, /* type ID in local BPF object */
+ BPF_CORE_TYPE_ID_TARGET = 7, /* type ID in target kernel */
+ BPF_CORE_TYPE_EXISTS = 8, /* type existence in target kernel */
+ BPF_CORE_TYPE_SIZE = 9, /* type size in bytes */
+ BPF_CORE_ENUMVAL_EXISTS = 10, /* enum value existence in target kernel */
+ BPF_CORE_ENUMVAL_VALUE = 11, /* enum value integer value */
+ BPF_CORE_TYPE_MATCHES = 12, /* type match in target kernel */
+ };
+
+Notes:
+
+* ``BPF_CORE_FIELD_LSHIFT_U64`` and ``BPF_CORE_FIELD_RSHIFT_U64`` are
+ supposed to be used to read bitfield values using the following
+ algorithm:
+
+ .. code-block:: c
+
+ // To read bitfield ``f`` from ``struct s``
+ is_signed = relo(s->f, BPF_CORE_FIELD_SIGNED)
+ off = relo(s->f, BPF_CORE_FIELD_BYTE_OFFSET)
+ sz = relo(s->f, BPF_CORE_FIELD_BYTE_SIZE)
+ l = relo(s->f, BPF_CORE_FIELD_LSHIFT_U64)
+ r = relo(s->f, BPF_CORE_FIELD_RSHIFT_U64)
+ // define ``v`` as signed or unsigned integer of size ``sz``
+ v = *({s|u}<sz> *)((void *)s + off)
+ v <<= l
+ v >>= r
+
+* The ``BPF_CORE_TYPE_MATCHES`` queries matching relation, defined as
+ follows:
+
+ * for integers: types match if size and signedness match;
+ * for arrays & pointers: target types are recursively matched;
+ * for structs & unions:
+
+ * local members need to exist in target with the same name;
+
+ * for each member we recursively check match unless it is already behind a
+ pointer, in which case we only check matching names and compatible kind;
+
+ * for enums:
+
+ * local variants have to have a match in target by symbolic name (but not
+ numeric value);
+
+ * size has to match (but enum may match enum64 and vice versa);
+
+ * for function pointers:
+
+ * number and position of arguments in local type has to match target;
+ * for each argument and the return value we recursively check match.
+
+CO-RE Relocation Record
+=======================
+
+Relocation record is encoded as the following structure:
+
+.. code-block:: c
+
+ struct bpf_core_relo {
+ __u32 insn_off;
+ __u32 type_id;
+ __u32 access_str_off;
+ enum bpf_core_relo_kind kind;
+ };
+
+* ``insn_off`` - instruction offset (in bytes) within a code section
+ associated with this relocation;
+
+* ``type_id`` - BTF type ID of the "root" (containing) entity of a
+ relocatable type or field;
+
+* ``access_str_off`` - offset into corresponding .BTF string section.
+ String interpretation depends on specific relocation kind:
+
+ * for field-based relocations, string encodes an accessed field using
+ a sequence of field and array indices, separated by colon (:). It's
+ conceptually very close to LLVM's `getelementptr <GEP_>`_ instruction's
+ arguments for identifying offset to a field. For example, consider the
+ following C code:
+
+ .. code-block:: c
+
+ struct sample {
+ int a;
+ int b;
+ struct { int c[10]; };
+ } __attribute__((preserve_access_index));
+ struct sample *s;
+
+ * Access to ``s[0].a`` would be encoded as ``0:0``:
+
+ * ``0``: first element of ``s`` (as if ``s`` is an array);
+ * ``0``: index of field ``a`` in ``struct sample``.
+
+ * Access to ``s->a`` would be encoded as ``0:0`` as well.
+ * Access to ``s->b`` would be encoded as ``0:1``:
+
+ * ``0``: first element of ``s``;
+ * ``1``: index of field ``b`` in ``struct sample``.
+
+ * Access to ``s[1].c[5]`` would be encoded as ``1:2:0:5``:
+
+ * ``1``: second element of ``s``;
+ * ``2``: index of anonymous structure field in ``struct sample``;
+ * ``0``: index of field ``c`` in anonymous structure;
+ * ``5``: access to array element #5.
+
+ * for type-based relocations, string is expected to be just "0";
+
+ * for enum value-based relocations, string contains an index of enum
+ value within its enum type;
+
+* ``kind`` - one of ``enum bpf_core_relo_kind``.
+
+.. _GEP: https://llvm.org/docs/LangRef.html#getelementptr-instruction
+
+.. _btf_co_re_relocation_examples:
+
+CO-RE Relocation Examples
+=========================
+
+For the following C code:
+
+.. code-block:: c
+
+ struct foo {
+ int a;
+ int b;
+ unsigned c:15;
+ } __attribute__((preserve_access_index));
+
+ enum bar { U, V };
+
+With the following BTF definitions:
+
+.. code-block::
+
+ ...
+ [2] STRUCT 'foo' size=8 vlen=2
+ 'a' type_id=3 bits_offset=0
+ 'b' type_id=3 bits_offset=32
+ 'c' type_id=4 bits_offset=64 bitfield_size=15
+ [3] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED
+ [4] INT 'unsigned int' size=4 bits_offset=0 nr_bits=32 encoding=(none)
+ ...
+ [16] ENUM 'bar' encoding=UNSIGNED size=4 vlen=2
+ 'U' val=0
+ 'V' val=1
+
+Field offset relocations are generated automatically when
+``__attribute__((preserve_access_index))`` is used, for example:
+
+.. code-block:: c
+
+ void alpha(struct foo *s, volatile unsigned long *g) {
+ *g = s->a;
+ s->a = 1;
+ }
+
+ 00 <alpha>:
+ 0: r3 = *(s32 *)(r1 + 0x0)
+ 00: CO-RE <byte_off> [2] struct foo::a (0:0)
+ 1: *(u64 *)(r2 + 0x0) = r3
+ 2: *(u32 *)(r1 + 0x0) = 0x1
+ 10: CO-RE <byte_off> [2] struct foo::a (0:0)
+ 3: exit
+
+
+All relocation kinds could be requested via built-in functions.
+E.g. field-based relocations:
+
+.. code-block:: c
+
+ void bravo(struct foo *s, volatile unsigned long *g) {
+ *g = __builtin_preserve_field_info(s->b, 0 /* field byte offset */);
+ *g = __builtin_preserve_field_info(s->b, 1 /* field byte size */);
+ *g = __builtin_preserve_field_info(s->b, 2 /* field existence */);
+ *g = __builtin_preserve_field_info(s->b, 3 /* field signedness */);
+ *g = __builtin_preserve_field_info(s->c, 4 /* bitfield left shift */);
+ *g = __builtin_preserve_field_info(s->c, 5 /* bitfield right shift */);
+ }
+
+ 20 <bravo>:
+ 4: r1 = 0x4
+ 20: CO-RE <byte_off> [2] struct foo::b (0:1)
+ 5: *(u64 *)(r2 + 0x0) = r1
+ 6: r1 = 0x4
+ 30: CO-RE <byte_sz> [2] struct foo::b (0:1)
+ 7: *(u64 *)(r2 + 0x0) = r1
+ 8: r1 = 0x1
+ 40: CO-RE <field_exists> [2] struct foo::b (0:1)
+ 9: *(u64 *)(r2 + 0x0) = r1
+ 10: r1 = 0x1
+ 50: CO-RE <signed> [2] struct foo::b (0:1)
+ 11: *(u64 *)(r2 + 0x0) = r1
+ 12: r1 = 0x31
+ 60: CO-RE <lshift_u64> [2] struct foo::c (0:2)
+ 13: *(u64 *)(r2 + 0x0) = r1
+ 14: r1 = 0x31
+ 70: CO-RE <rshift_u64> [2] struct foo::c (0:2)
+ 15: *(u64 *)(r2 + 0x0) = r1
+ 16: exit
+
+
+Type-based relocations:
+
+.. code-block:: c
+
+ void charlie(struct foo *s, volatile unsigned long *g) {
+ *g = __builtin_preserve_type_info(*s, 0 /* type existence */);
+ *g = __builtin_preserve_type_info(*s, 1 /* type size */);
+ *g = __builtin_preserve_type_info(*s, 2 /* type matches */);
+ *g = __builtin_btf_type_id(*s, 0 /* type id in this object file */);
+ *g = __builtin_btf_type_id(*s, 1 /* type id in target kernel */);
+ }
+
+ 88 <charlie>:
+ 17: r1 = 0x1
+ 88: CO-RE <type_exists> [2] struct foo
+ 18: *(u64 *)(r2 + 0x0) = r1
+ 19: r1 = 0xc
+ 98: CO-RE <type_size> [2] struct foo
+ 20: *(u64 *)(r2 + 0x0) = r1
+ 21: r1 = 0x1
+ a8: CO-RE <type_matches> [2] struct foo
+ 22: *(u64 *)(r2 + 0x0) = r1
+ 23: r1 = 0x2 ll
+ b8: CO-RE <local_type_id> [2] struct foo
+ 25: *(u64 *)(r2 + 0x0) = r1
+ 26: r1 = 0x2 ll
+ d0: CO-RE <target_type_id> [2] struct foo
+ 28: *(u64 *)(r2 + 0x0) = r1
+ 29: exit
+
+Enum-based relocations:
+
+.. code-block:: c
+
+ void delta(struct foo *s, volatile unsigned long *g) {
+ *g = __builtin_preserve_enum_value(*(enum bar *)U, 0 /* enum literal existence */);
+ *g = __builtin_preserve_enum_value(*(enum bar *)V, 1 /* enum literal value */);
+ }
+
+ f0 <delta>:
+ 30: r1 = 0x1 ll
+ f0: CO-RE <enumval_exists> [16] enum bar::U = 0
+ 32: *(u64 *)(r2 + 0x0) = r1
+ 33: r1 = 0x1 ll
+ 108: CO-RE <enumval_value> [16] enum bar::V = 1
+ 35: *(u64 *)(r2 + 0x0) = r1
+ 36: exit
diff --git a/Documentation/bpf/map_array.rst b/Documentation/bpf/map_array.rst
index f2f51a53e8ae..fa56ff75190c 100644
--- a/Documentation/bpf/map_array.rst
+++ b/Documentation/bpf/map_array.rst
@@ -15,8 +15,9 @@ of constant size. The size of the array is defined in ``max_entries`` at
creation time. All array elements are pre-allocated and zero initialized when
created. ``BPF_MAP_TYPE_PERCPU_ARRAY`` uses a different memory region for each
CPU whereas ``BPF_MAP_TYPE_ARRAY`` uses the same memory region. The value
-stored can be of any size, however, all array elements are aligned to 8
-bytes.
+stored can be of any size for ``BPF_MAP_TYPE_ARRAY`` and not more than
+``PCPU_MIN_UNIT_SIZE`` (32 kB) for ``BPF_MAP_TYPE_PERCPU_ARRAY``. All
+array elements are aligned to 8 bytes.
Since kernel 5.5, memory mapping may be enabled for ``BPF_MAP_TYPE_ARRAY`` by
setting the flag ``BPF_F_MMAPABLE``. The map definition is page-aligned and
diff --git a/Documentation/bpf/map_hash.rst b/Documentation/bpf/map_hash.rst
index 8669426264c6..8606bf958a8c 100644
--- a/Documentation/bpf/map_hash.rst
+++ b/Documentation/bpf/map_hash.rst
@@ -1,5 +1,6 @@
.. SPDX-License-Identifier: GPL-2.0-only
.. Copyright (C) 2022 Red Hat, Inc.
+.. Copyright (C) 2022-2023 Isovalent, Inc.
===============================================
BPF_MAP_TYPE_HASH, with PERCPU and LRU Variants
@@ -29,7 +30,16 @@ will automatically evict the least recently used entries when the hash
table reaches capacity. An LRU hash maintains an internal LRU list that
is used to select elements for eviction. This internal LRU list is
shared across CPUs but it is possible to request a per CPU LRU list with
-the ``BPF_F_NO_COMMON_LRU`` flag when calling ``bpf_map_create``.
+the ``BPF_F_NO_COMMON_LRU`` flag when calling ``bpf_map_create``. The
+following table outlines the properties of LRU maps depending on the a
+map type and the flags used to create the map.
+
+======================== ========================= ================================
+Flag ``BPF_MAP_TYPE_LRU_HASH`` ``BPF_MAP_TYPE_LRU_PERCPU_HASH``
+======================== ========================= ================================
+**BPF_F_NO_COMMON_LRU** Per-CPU LRU, global map Per-CPU LRU, per-cpu map
+**!BPF_F_NO_COMMON_LRU** Global LRU, global map Global LRU, per-cpu map
+======================== ========================= ================================
Usage
=====
@@ -206,3 +216,50 @@ Userspace walking the map elements from the map declared above:
cur_key = &next_key;
}
}
+
+Internals
+=========
+
+This section of the document is targeted at Linux developers and describes
+aspects of the map implementations that are not considered stable ABI. The
+following details are subject to change in future versions of the kernel.
+
+``BPF_MAP_TYPE_LRU_HASH`` and variants
+--------------------------------------
+
+Updating elements in LRU maps may trigger eviction behaviour when the capacity
+of the map is reached. There are various steps that the update algorithm
+attempts in order to enforce the LRU property which have increasing impacts on
+other CPUs involved in the following operation attempts:
+
+- Attempt to use CPU-local state to batch operations
+- Attempt to fetch ``target_free`` free nodes from global lists
+- Attempt to pull any node from a global list and remove it from the hashmap
+- Attempt to pull any node from any CPU's list and remove it from the hashmap
+
+The number of nodes to borrow from the global list in a batch, ``target_free``,
+depends on the size of the map. Larger batch size reduces lock contention, but
+may also exhaust the global structure. The value is computed at map init to
+avoid exhaustion, by limiting aggregate reservation by all CPUs to half the map
+size. With a minimum of a single element and maximum budget of 128 at a time.
+
+This algorithm is described visually in the following diagram. See the
+description in commit 3a08c2fd7634 ("bpf: LRU List") for a full explanation of
+the corresponding operations:
+
+.. kernel-figure:: map_lru_hash_update.dot
+ :alt: Diagram outlining the LRU eviction steps taken during map update.
+
+ LRU hash eviction during map update for ``BPF_MAP_TYPE_LRU_HASH`` and
+ variants. See the dot file source for kernel function name code references.
+
+Map updates start from the oval in the top right "begin ``bpf_map_update()``"
+and progress through the graph towards the bottom where the result may be
+either a successful update or a failure with various error codes. The key in
+the top right provides indicators for which locks may be involved in specific
+operations. This is intended as a visual hint for reasoning about how map
+contention may impact update operations, though the map type and flags may
+impact the actual contention on those locks, based on the logic described in
+the table above. For instance, if the map is created with type
+``BPF_MAP_TYPE_LRU_PERCPU_HASH`` and flags ``BPF_F_NO_COMMON_LRU`` then all map
+properties would be per-cpu.
diff --git a/Documentation/bpf/map_lpm_trie.rst b/Documentation/bpf/map_lpm_trie.rst
index 74d64a30f500..f9cd579496c9 100644
--- a/Documentation/bpf/map_lpm_trie.rst
+++ b/Documentation/bpf/map_lpm_trie.rst
@@ -17,7 +17,7 @@ significant byte.
LPM tries may be created with a maximum prefix length that is a multiple
of 8, in the range from 8 to 2048. The key used for lookup and update
-operations is a ``struct bpf_lpm_trie_key``, extended by
+operations is a ``struct bpf_lpm_trie_key_u8``, extended by
``max_prefixlen/8`` bytes.
- For IPv4 addresses the data length is 4 bytes
diff --git a/Documentation/bpf/map_lru_hash_update.dot b/Documentation/bpf/map_lru_hash_update.dot
new file mode 100644
index 000000000000..ab10058f5b79
--- /dev/null
+++ b/Documentation/bpf/map_lru_hash_update.dot
@@ -0,0 +1,172 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// Copyright (C) 2022-2023 Isovalent, Inc.
+digraph {
+ node [colorscheme=accent4,style=filled] # Apply colorscheme to all nodes
+ graph [splines=ortho, nodesep=1]
+
+ subgraph cluster_key {
+ label = "Key\n(locks held during operation)";
+ rankdir = TB;
+
+ remote_lock [shape=rectangle,fillcolor=4,label="remote CPU LRU lock"]
+ hash_lock [shape=rectangle,fillcolor=3,label="hashtab lock"]
+ lru_lock [shape=rectangle,fillcolor=2,label="LRU lock"]
+ local_lock [shape=rectangle,fillcolor=1,label="local CPU LRU lock"]
+ no_lock [shape=rectangle,label="no locks held"]
+ }
+
+ begin [shape=oval,label="begin\nbpf_map_update()"]
+
+ // Nodes below with an 'fn_' prefix are roughly labeled by the C function
+ // names that initiate the corresponding logic in kernel/bpf/bpf_lru_list.c.
+ // Number suffixes and errno suffixes handle subsections of the corresponding
+ // logic in the function as of the writing of this dot.
+
+ // cf. __local_list_pop_free() / bpf_percpu_lru_pop_free()
+ local_freelist_check [shape=diamond,fillcolor=1,
+ label="Local freelist\nnode available?"];
+ use_local_node [shape=rectangle,
+ label="Use node owned\nby this CPU"]
+
+ // cf. bpf_lru_pop_free()
+ common_lru_check [shape=diamond,
+ label="Map created with\ncommon LRU?\n(!BPF_F_NO_COMMON_LRU)"];
+
+ fn_bpf_lru_list_pop_free_to_local [shape=rectangle,fillcolor=2,
+ label="Flush local pending,
+ Rotate Global list, move
+ target_free
+ from global -> local"]
+ // Also corresponds to:
+ // fn__local_list_flush()
+ // fn_bpf_lru_list_rotate()
+ fn___bpf_lru_node_move_to_free[shape=diamond,fillcolor=2,
+ label="Able to free\ntarget_free\nnodes?"]
+
+ fn___bpf_lru_list_shrink_inactive [shape=rectangle,fillcolor=3,
+ label="Shrink inactive list
+ up to remaining
+ target_free
+ (global LRU -> local)"]
+ fn___bpf_lru_list_shrink [shape=diamond,fillcolor=2,
+ label="> 0 entries in\nlocal free list?"]
+ fn___bpf_lru_list_shrink2 [shape=rectangle,fillcolor=2,
+ label="Steal one node from
+ inactive, or if empty,
+ from active global list"]
+ fn___bpf_lru_list_shrink3 [shape=rectangle,fillcolor=3,
+ label="Try to remove\nnode from hashtab"]
+
+ local_freelist_check2 [shape=diamond,label="Htab removal\nsuccessful?"]
+ common_lru_check2 [shape=diamond,
+ label="Map created with\ncommon LRU?\n(!BPF_F_NO_COMMON_LRU)"];
+
+ subgraph cluster_remote_lock {
+ label = "Iterate through CPUs\n(start from current)";
+ style = dashed;
+ rankdir=LR;
+
+ local_freelist_check5 [shape=diamond,fillcolor=4,
+ label="Steal a node from\nper-cpu freelist?"]
+ local_freelist_check6 [shape=rectangle,fillcolor=4,
+ label="Steal a node from
+ (1) Unreferenced pending, or
+ (2) Any pending node"]
+ local_freelist_check7 [shape=rectangle,fillcolor=3,
+ label="Try to remove\nnode from hashtab"]
+ fn_htab_lru_map_update_elem [shape=diamond,
+ label="Stole node\nfrom remote\nCPU?"]
+ fn_htab_lru_map_update_elem2 [shape=diamond,label="Iterated\nall CPUs?"]
+ // Also corresponds to:
+ // use_local_node()
+ // fn__local_list_pop_pending()
+ }
+
+ fn_bpf_lru_list_pop_free_to_local2 [shape=rectangle,
+ label="Use node that was\nnot recently referenced"]
+ local_freelist_check4 [shape=rectangle,
+ label="Use node that was\nactively referenced\nin global list"]
+ fn_htab_lru_map_update_elem_ENOMEM [shape=oval,label="return -ENOMEM"]
+ fn_htab_lru_map_update_elem3 [shape=rectangle,
+ label="Use node that was\nactively referenced\nin (another?) CPU's cache"]
+ fn_htab_lru_map_update_elem4 [shape=rectangle,fillcolor=3,
+ label="Update hashmap\nwith new element"]
+ fn_htab_lru_map_update_elem5 [shape=oval,label="return 0"]
+ fn_htab_lru_map_update_elem_EBUSY [shape=oval,label="return -EBUSY"]
+ fn_htab_lru_map_update_elem_EEXIST [shape=oval,label="return -EEXIST"]
+ fn_htab_lru_map_update_elem_ENOENT [shape=oval,label="return -ENOENT"]
+
+ begin -> local_freelist_check
+ local_freelist_check -> use_local_node [xlabel="Y"]
+ local_freelist_check -> common_lru_check [xlabel="N"]
+ common_lru_check -> fn_bpf_lru_list_pop_free_to_local [xlabel="Y"]
+ common_lru_check -> fn___bpf_lru_list_shrink_inactive [xlabel="N"]
+ fn_bpf_lru_list_pop_free_to_local -> fn___bpf_lru_node_move_to_free
+ fn___bpf_lru_node_move_to_free ->
+ fn_bpf_lru_list_pop_free_to_local2 [xlabel="Y"]
+ fn___bpf_lru_node_move_to_free ->
+ fn___bpf_lru_list_shrink_inactive [xlabel="N"]
+ fn___bpf_lru_list_shrink_inactive -> fn___bpf_lru_list_shrink
+ fn___bpf_lru_list_shrink -> fn_bpf_lru_list_pop_free_to_local2 [xlabel = "Y"]
+ fn___bpf_lru_list_shrink -> fn___bpf_lru_list_shrink2 [xlabel="N"]
+ fn___bpf_lru_list_shrink2 -> fn___bpf_lru_list_shrink3
+ fn___bpf_lru_list_shrink3 -> local_freelist_check2
+ local_freelist_check2 -> local_freelist_check4 [xlabel = "Y"]
+ local_freelist_check2 -> common_lru_check2 [xlabel = "N"]
+ common_lru_check2 -> local_freelist_check5 [xlabel = "Y"]
+ common_lru_check2 -> fn_htab_lru_map_update_elem_ENOMEM [xlabel = "N"]
+ local_freelist_check5 -> fn_htab_lru_map_update_elem [xlabel = "Y"]
+ local_freelist_check5 -> local_freelist_check6 [xlabel = "N"]
+ local_freelist_check6 -> local_freelist_check7
+ local_freelist_check7 -> fn_htab_lru_map_update_elem
+
+ fn_htab_lru_map_update_elem -> fn_htab_lru_map_update_elem3 [xlabel = "Y"]
+ fn_htab_lru_map_update_elem -> fn_htab_lru_map_update_elem2 [xlabel = "N"]
+ fn_htab_lru_map_update_elem2 ->
+ fn_htab_lru_map_update_elem_ENOMEM [xlabel = "Y"]
+ fn_htab_lru_map_update_elem2 -> local_freelist_check5 [xlabel = "N"]
+ fn_htab_lru_map_update_elem3 -> fn_htab_lru_map_update_elem4
+
+ use_local_node -> fn_htab_lru_map_update_elem4
+ fn_bpf_lru_list_pop_free_to_local2 -> fn_htab_lru_map_update_elem4
+ local_freelist_check4 -> fn_htab_lru_map_update_elem4
+
+ fn_htab_lru_map_update_elem4 -> fn_htab_lru_map_update_elem5 [headlabel="Success"]
+ fn_htab_lru_map_update_elem4 ->
+ fn_htab_lru_map_update_elem_EBUSY [xlabel="Hashtab lock failed"]
+ fn_htab_lru_map_update_elem4 ->
+ fn_htab_lru_map_update_elem_EEXIST [xlabel="BPF_EXIST set and\nkey already exists"]
+ fn_htab_lru_map_update_elem4 ->
+ fn_htab_lru_map_update_elem_ENOENT [headlabel="BPF_NOEXIST set\nand no such entry"]
+
+ // Create invisible pad nodes to line up various nodes
+ pad0 [style=invis]
+ pad1 [style=invis]
+ pad2 [style=invis]
+ pad3 [style=invis]
+ pad4 [style=invis]
+
+ // Line up the key with the top of the graph
+ no_lock -> local_lock [style=invis]
+ local_lock -> lru_lock [style=invis]
+ lru_lock -> hash_lock [style=invis]
+ hash_lock -> remote_lock [style=invis]
+ remote_lock -> local_freelist_check5 [style=invis]
+ remote_lock -> fn___bpf_lru_list_shrink [style=invis]
+
+ // Line up return code nodes at the bottom of the graph
+ fn_htab_lru_map_update_elem -> pad0 [style=invis]
+ pad0 -> pad1 [style=invis]
+ pad1 -> pad2 [style=invis]
+ //pad2-> fn_htab_lru_map_update_elem_ENOMEM [style=invis]
+ fn_htab_lru_map_update_elem4 -> pad3 [style=invis]
+ pad3 -> fn_htab_lru_map_update_elem5 [style=invis]
+ pad3 -> fn_htab_lru_map_update_elem_EBUSY [style=invis]
+ pad3 -> fn_htab_lru_map_update_elem_EEXIST [style=invis]
+ pad3 -> fn_htab_lru_map_update_elem_ENOENT [style=invis]
+
+ // Reduce diagram width by forcing some nodes to appear above others
+ local_freelist_check4 -> fn_htab_lru_map_update_elem3 [style=invis]
+ common_lru_check2 -> pad4 [style=invis]
+ pad4 -> local_freelist_check5 [style=invis]
+}
diff --git a/Documentation/bpf/map_sockmap.rst b/Documentation/bpf/map_sockmap.rst
index cc92047c6630..2d630686a00b 100644
--- a/Documentation/bpf/map_sockmap.rst
+++ b/Documentation/bpf/map_sockmap.rst
@@ -240,11 +240,11 @@ offsets into ``msg``, respectively.
If a program of type ``BPF_PROG_TYPE_SK_MSG`` is run on a ``msg`` it can only
parse data that the (``data``, ``data_end``) pointers have already consumed.
For ``sendmsg()`` hooks this is likely the first scatterlist element. But for
-calls relying on the ``sendpage`` handler (e.g., ``sendfile()``) this will be
-the range (**0**, **0**) because the data is shared with user space and by
-default the objective is to avoid allowing user space to modify data while (or
-after) BPF verdict is being decided. This helper can be used to pull in data
-and to set the start and end pointers to given values. Data will be copied if
+calls relying on MSG_SPLICE_PAGES (e.g., ``sendfile()``) this will be the
+range (**0**, **0**) because the data is shared with user space and by default
+the objective is to avoid allowing user space to modify data while (or after)
+BPF verdict is being decided. This helper can be used to pull in data and to
+set the start and end pointers to given values. Data will be copied if
necessary (i.e., if data was not linear and if start and end pointers do not
point to the same chunk).
diff --git a/Documentation/bpf/prog_cgroup_sockopt.rst b/Documentation/bpf/prog_cgroup_sockopt.rst
index 172f957204bf..1226a94af07a 100644
--- a/Documentation/bpf/prog_cgroup_sockopt.rst
+++ b/Documentation/bpf/prog_cgroup_sockopt.rst
@@ -98,10 +98,65 @@ can access only the first ``PAGE_SIZE`` of that data. So it has to options:
indicates that the kernel should use BPF's trimmed ``optval``.
When the BPF program returns with the ``optlen`` greater than
-``PAGE_SIZE``, the userspace will receive ``EFAULT`` errno.
+``PAGE_SIZE``, the userspace will receive original kernel
+buffers without any modifications that the BPF program might have
+applied.
Example
=======
+Recommended way to handle BPF programs is as follows:
+
+.. code-block:: c
+
+ SEC("cgroup/getsockopt")
+ int getsockopt(struct bpf_sockopt *ctx)
+ {
+ /* Custom socket option. */
+ if (ctx->level == MY_SOL && ctx->optname == MY_OPTNAME) {
+ ctx->retval = 0;
+ optval[0] = ...;
+ ctx->optlen = 1;
+ return 1;
+ }
+
+ /* Modify kernel's socket option. */
+ if (ctx->level == SOL_IP && ctx->optname == IP_FREEBIND) {
+ ctx->retval = 0;
+ optval[0] = ...;
+ ctx->optlen = 1;
+ return 1;
+ }
+
+ /* optval larger than PAGE_SIZE use kernel's buffer. */
+ if (ctx->optlen > PAGE_SIZE)
+ ctx->optlen = 0;
+
+ return 1;
+ }
+
+ SEC("cgroup/setsockopt")
+ int setsockopt(struct bpf_sockopt *ctx)
+ {
+ /* Custom socket option. */
+ if (ctx->level == MY_SOL && ctx->optname == MY_OPTNAME) {
+ /* do something */
+ ctx->optlen = -1;
+ return 1;
+ }
+
+ /* Modify kernel's socket option. */
+ if (ctx->level == SOL_IP && ctx->optname == IP_FREEBIND) {
+ optval[0] = ...;
+ return 1;
+ }
+
+ /* optval larger than PAGE_SIZE use kernel's buffer. */
+ if (ctx->optlen > PAGE_SIZE)
+ ctx->optlen = 0;
+
+ return 1;
+ }
+
See ``tools/testing/selftests/bpf/progs/sockopt_sk.c`` for an example
of BPF program that handles socket options.
diff --git a/Documentation/bpf/prog_flow_dissector.rst b/Documentation/bpf/prog_flow_dissector.rst
index 4d86780ab0f1..f24270b8b034 100644
--- a/Documentation/bpf/prog_flow_dissector.rst
+++ b/Documentation/bpf/prog_flow_dissector.rst
@@ -113,7 +113,7 @@ Flags
used by ``eth_get_headlen`` to estimate length of all headers for GRO.
* ``BPF_FLOW_DISSECTOR_F_STOP_AT_FLOW_LABEL`` - tells BPF flow dissector to
stop parsing as soon as it reaches IPv6 flow label; used by
- ``___skb_get_hash`` and ``__skb_get_hash_symmetric`` to get flow hash.
+ ``___skb_get_hash`` to get flow hash.
* ``BPF_FLOW_DISSECTOR_F_STOP_AT_ENCAP`` - tells BPF flow dissector to stop
parsing as soon as it reaches encapsulated headers; used by routing
infrastructure.
diff --git a/Documentation/bpf/standardization/abi.rst b/Documentation/bpf/standardization/abi.rst
new file mode 100644
index 000000000000..41514137cb7b
--- /dev/null
+++ b/Documentation/bpf/standardization/abi.rst
@@ -0,0 +1,28 @@
+.. contents::
+.. sectnum::
+
+===================================================
+BPF ABI Recommended Conventions and Guidelines v1.0
+===================================================
+
+This is version 1.0 of an informational document containing recommended
+conventions and guidelines for producing portable BPF program binaries.
+
+Registers and calling convention
+================================
+
+BPF has 10 general purpose registers and a read-only frame pointer register,
+all of which are 64-bits wide.
+
+The BPF calling convention is defined as:
+
+* R0: return value from function calls, and exit value for BPF programs
+* R1 - R5: arguments for function calls
+* R6 - R9: callee saved registers that function calls will preserve
+* R10: read-only frame pointer to access stack
+
+R0 - R5 are scratch registers and BPF programs needs to spill/fill them if
+necessary across calls.
+
+The BPF program needs to store the return value into register R0 before doing an
+``EXIT``.
diff --git a/Documentation/bpf/standardization/index.rst b/Documentation/bpf/standardization/index.rst
new file mode 100644
index 000000000000..a50c3baf6345
--- /dev/null
+++ b/Documentation/bpf/standardization/index.rst
@@ -0,0 +1,18 @@
+.. SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
+
+===================
+BPF Standardization
+===================
+
+This directory contains documents that are being iterated on as part of the BPF
+standardization effort with the IETF. See the `IETF BPF Working Group`_ page
+for the working group charter, documents, and more.
+
+.. toctree::
+ :maxdepth: 1
+
+ instruction-set
+ abi
+
+.. Links:
+.. _IETF BPF Working Group: https://datatracker.ietf.org/wg/bpf/about/
diff --git a/Documentation/bpf/standardization/instruction-set.rst b/Documentation/bpf/standardization/instruction-set.rst
new file mode 100644
index 000000000000..39c74611752b
--- /dev/null
+++ b/Documentation/bpf/standardization/instruction-set.rst
@@ -0,0 +1,790 @@
+.. contents::
+.. sectnum::
+
+======================================
+BPF Instruction Set Architecture (ISA)
+======================================
+
+eBPF, also commonly
+referred to as BPF, is a technology with origins in the Linux kernel
+that can run untrusted programs in a privileged context such as an
+operating system kernel. This document specifies the BPF instruction
+set architecture (ISA).
+
+As a historical note, BPF originally stood for Berkeley Packet Filter,
+but now that it can do so much more than packet filtering, the acronym
+no longer makes sense. BPF is now considered a standalone term that
+does not stand for anything. The original BPF is sometimes referred to
+as cBPF (classic BPF) to distinguish it from the now widely deployed
+eBPF (extended BPF).
+
+Documentation conventions
+=========================
+
+The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
+"SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
+"OPTIONAL" in this document are to be interpreted as described in
+BCP 14 `<https://www.rfc-editor.org/info/rfc2119>`_
+`<https://www.rfc-editor.org/info/rfc8174>`_
+when, and only when, they appear in all capitals, as shown here.
+
+For brevity and consistency, this document refers to families
+of types using a shorthand syntax and refers to several expository,
+mnemonic functions when describing the semantics of instructions.
+The range of valid values for those types and the semantics of those
+functions are defined in the following subsections.
+
+Types
+-----
+This document refers to integer types with the notation `SN` to specify
+a type's signedness (`S`) and bit width (`N`), respectively.
+
+.. table:: Meaning of signedness notation
+
+ ==== =========
+ S Meaning
+ ==== =========
+ u unsigned
+ s signed
+ ==== =========
+
+.. table:: Meaning of bit-width notation
+
+ ===== =========
+ N Bit width
+ ===== =========
+ 8 8 bits
+ 16 16 bits
+ 32 32 bits
+ 64 64 bits
+ 128 128 bits
+ ===== =========
+
+For example, `u32` is a type whose valid values are all the 32-bit unsigned
+numbers and `s16` is a type whose valid values are all the 16-bit signed
+numbers.
+
+Functions
+---------
+
+The following byteswap functions are direction-agnostic. That is,
+the same function is used for conversion in either direction discussed
+below.
+
+* be16: Takes an unsigned 16-bit number and converts it between
+ host byte order and big-endian
+ (`IEN137 <https://www.rfc-editor.org/ien/ien137.txt>`_) byte order.
+* be32: Takes an unsigned 32-bit number and converts it between
+ host byte order and big-endian byte order.
+* be64: Takes an unsigned 64-bit number and converts it between
+ host byte order and big-endian byte order.
+* bswap16: Takes an unsigned 16-bit number in either big- or little-endian
+ format and returns the equivalent number with the same bit width but
+ opposite endianness.
+* bswap32: Takes an unsigned 32-bit number in either big- or little-endian
+ format and returns the equivalent number with the same bit width but
+ opposite endianness.
+* bswap64: Takes an unsigned 64-bit number in either big- or little-endian
+ format and returns the equivalent number with the same bit width but
+ opposite endianness.
+* le16: Takes an unsigned 16-bit number and converts it between
+ host byte order and little-endian byte order.
+* le32: Takes an unsigned 32-bit number and converts it between
+ host byte order and little-endian byte order.
+* le64: Takes an unsigned 64-bit number and converts it between
+ host byte order and little-endian byte order.
+
+Definitions
+-----------
+
+.. glossary::
+
+ Sign Extend
+ To `sign extend an` ``X`` `-bit number, A, to a` ``Y`` `-bit number, B ,` means to
+
+ #. Copy all ``X`` bits from `A` to the lower ``X`` bits of `B`.
+ #. Set the value of the remaining ``Y`` - ``X`` bits of `B` to the value of
+ the most-significant bit of `A`.
+
+.. admonition:: Example
+
+ Sign extend an 8-bit number ``A`` to a 16-bit number ``B`` on a big-endian platform:
+ ::
+
+ A: 10000110
+ B: 11111111 10000110
+
+Conformance groups
+------------------
+
+An implementation does not need to support all instructions specified in this
+document (e.g., deprecated instructions). Instead, a number of conformance
+groups are specified. An implementation MUST support the base32 conformance
+group and MAY support additional conformance groups, where supporting a
+conformance group means it MUST support all instructions in that conformance
+group.
+
+The use of named conformance groups enables interoperability between a runtime
+that executes instructions, and tools such as compilers that generate
+instructions for the runtime. Thus, capability discovery in terms of
+conformance groups might be done manually by users or automatically by tools.
+
+Each conformance group has a short ASCII label (e.g., "base32") that
+corresponds to a set of instructions that are mandatory. That is, each
+instruction has one or more conformance groups of which it is a member.
+
+This document defines the following conformance groups:
+
+* base32: includes all instructions defined in this
+ specification unless otherwise noted.
+* base64: includes base32, plus instructions explicitly noted
+ as being in the base64 conformance group.
+* atomic32: includes 32-bit atomic operation instructions (see `Atomic operations`_).
+* atomic64: includes atomic32, plus 64-bit atomic operation instructions.
+* divmul32: includes 32-bit division, multiplication, and modulo instructions.
+* divmul64: includes divmul32, plus 64-bit division, multiplication,
+ and modulo instructions.
+* packet: deprecated packet access instructions.
+
+Instruction encoding
+====================
+
+BPF has two instruction encodings:
+
+* the basic instruction encoding, which uses 64 bits to encode an instruction
+* the wide instruction encoding, which appends a second 64 bits
+ after the basic instruction for a total of 128 bits.
+
+Basic instruction encoding
+--------------------------
+
+A basic instruction is encoded as follows::
+
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | opcode | regs | offset |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | imm |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+
+**opcode**
+ operation to perform, encoded as follows::
+
+ +-+-+-+-+-+-+-+-+
+ |specific |class|
+ +-+-+-+-+-+-+-+-+
+
+ **specific**
+ The format of these bits varies by instruction class
+
+ **class**
+ The instruction class (see `Instruction classes`_)
+
+**regs**
+ The source and destination register numbers, encoded as follows
+ on a little-endian host::
+
+ +-+-+-+-+-+-+-+-+
+ |src_reg|dst_reg|
+ +-+-+-+-+-+-+-+-+
+
+ and as follows on a big-endian host::
+
+ +-+-+-+-+-+-+-+-+
+ |dst_reg|src_reg|
+ +-+-+-+-+-+-+-+-+
+
+ **src_reg**
+ the source register number (0-10), except where otherwise specified
+ (`64-bit immediate instructions`_ reuse this field for other purposes)
+
+ **dst_reg**
+ destination register number (0-10), unless otherwise specified
+ (future instructions might reuse this field for other purposes)
+
+**offset**
+ signed integer offset used with pointer arithmetic, except where
+ otherwise specified (some arithmetic instructions reuse this field
+ for other purposes)
+
+**imm**
+ signed integer immediate value
+
+Note that the contents of multi-byte fields ('offset' and 'imm') are
+stored using big-endian byte ordering on big-endian hosts and
+little-endian byte ordering on little-endian hosts.
+
+For example::
+
+ opcode offset imm assembly
+ src_reg dst_reg
+ 07 0 1 00 00 44 33 22 11 r1 += 0x11223344 // little
+ dst_reg src_reg
+ 07 1 0 00 00 11 22 33 44 r1 += 0x11223344 // big
+
+Note that most instructions do not use all of the fields.
+Unused fields SHALL be cleared to zero.
+
+Wide instruction encoding
+--------------------------
+
+Some instructions are defined to use the wide instruction encoding,
+which uses two 32-bit immediate values. The 64 bits following
+the basic instruction format contain a pseudo instruction
+with 'opcode', 'dst_reg', 'src_reg', and 'offset' all set to zero.
+
+This is depicted in the following figure::
+
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | opcode | regs | offset |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | imm |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | reserved |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | next_imm |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+
+**opcode**
+ operation to perform, encoded as explained above
+
+**regs**
+ The source and destination register numbers (unless otherwise
+ specified), encoded as explained above
+
+**offset**
+ signed integer offset used with pointer arithmetic, unless
+ otherwise specified
+
+**imm**
+ signed integer immediate value
+
+**reserved**
+ unused, set to zero
+
+**next_imm**
+ second signed integer immediate value
+
+Instruction classes
+-------------------
+
+The three least significant bits of the 'opcode' field store the instruction class:
+
+.. table:: Instruction class
+
+ ===== ===== =============================== ===================================
+ class value description reference
+ ===== ===== =============================== ===================================
+ LD 0x0 non-standard load operations `Load and store instructions`_
+ LDX 0x1 load into register operations `Load and store instructions`_
+ ST 0x2 store from immediate operations `Load and store instructions`_
+ STX 0x3 store from register operations `Load and store instructions`_
+ ALU 0x4 32-bit arithmetic operations `Arithmetic and jump instructions`_
+ JMP 0x5 64-bit jump operations `Arithmetic and jump instructions`_
+ JMP32 0x6 32-bit jump operations `Arithmetic and jump instructions`_
+ ALU64 0x7 64-bit arithmetic operations `Arithmetic and jump instructions`_
+ ===== ===== =============================== ===================================
+
+Arithmetic and jump instructions
+================================
+
+For arithmetic and jump instructions (``ALU``, ``ALU64``, ``JMP`` and
+``JMP32``), the 8-bit 'opcode' field is divided into three parts::
+
+ +-+-+-+-+-+-+-+-+
+ | code |s|class|
+ +-+-+-+-+-+-+-+-+
+
+**code**
+ the operation code, whose meaning varies by instruction class
+
+**s (source)**
+ the source operand location, which unless otherwise specified is one of:
+
+ .. table:: Source operand location
+
+ ====== ===== ==============================================
+ source value description
+ ====== ===== ==============================================
+ K 0 use 32-bit 'imm' value as source operand
+ X 1 use 'src_reg' register value as source operand
+ ====== ===== ==============================================
+
+**instruction class**
+ the instruction class (see `Instruction classes`_)
+
+Arithmetic instructions
+-----------------------
+
+``ALU`` uses 32-bit wide operands while ``ALU64`` uses 64-bit wide operands for
+otherwise identical operations. ``ALU64`` instructions belong to the
+base64 conformance group unless noted otherwise.
+The 'code' field encodes the operation as below, where 'src' refers to the
+the source operand and 'dst' refers to the value of the destination
+register.
+
+.. table:: Arithmetic instructions
+
+ ===== ===== ======= ===================================================================================
+ name code offset description
+ ===== ===== ======= ===================================================================================
+ ADD 0x0 0 dst += src
+ SUB 0x1 0 dst -= src
+ MUL 0x2 0 dst \*= src
+ DIV 0x3 0 dst = (src != 0) ? (dst / src) : 0
+ SDIV 0x3 1 dst = (src == 0) ? 0 : ((src == -1 && dst == LLONG_MIN) ? LLONG_MIN : (dst s/ src))
+ OR 0x4 0 dst \|= src
+ AND 0x5 0 dst &= src
+ LSH 0x6 0 dst <<= (src & mask)
+ RSH 0x7 0 dst >>= (src & mask)
+ NEG 0x8 0 dst = -dst
+ MOD 0x9 0 dst = (src != 0) ? (dst % src) : dst
+ SMOD 0x9 1 dst = (src == 0) ? dst : ((src == -1 && dst == LLONG_MIN) ? 0: (dst s% src))
+ XOR 0xa 0 dst ^= src
+ MOV 0xb 0 dst = src
+ MOVSX 0xb 8/16/32 dst = (s8,s16,s32)src
+ ARSH 0xc 0 :term:`sign extending<Sign Extend>` dst >>= (src & mask)
+ END 0xd 0 byte swap operations (see `Byte swap instructions`_ below)
+ ===== ===== ======= ===================================================================================
+
+Underflow and overflow are allowed during arithmetic operations, meaning
+the 64-bit or 32-bit value will wrap. If BPF program execution would
+result in division by zero, the destination register is instead set to zero.
+Otherwise, for ``ALU64``, if execution would result in ``LLONG_MIN``
+divided by -1, the destination register is instead set to ``LLONG_MIN``. For
+``ALU``, if execution would result in ``INT_MIN`` divided by -1, the
+destination register is instead set to ``INT_MIN``.
+
+If execution would result in modulo by zero, for ``ALU64`` the value of
+the destination register is unchanged whereas for ``ALU`` the upper
+32 bits of the destination register are zeroed. Otherwise, for ``ALU64``,
+if execution would resuslt in ``LLONG_MIN`` modulo -1, the destination
+register is instead set to 0. For ``ALU``, if execution would result in
+``INT_MIN`` modulo -1, the destination register is instead set to 0.
+
+``{ADD, X, ALU}``, where 'code' = ``ADD``, 'source' = ``X``, and 'class' = ``ALU``, means::
+
+ dst = (u32) ((u32) dst + (u32) src)
+
+where '(u32)' indicates that the upper 32 bits are zeroed.
+
+``{ADD, X, ALU64}`` means::
+
+ dst = dst + src
+
+``{XOR, K, ALU}`` means::
+
+ dst = (u32) dst ^ (u32) imm
+
+``{XOR, K, ALU64}`` means::
+
+ dst = dst ^ imm
+
+Note that most arithmetic instructions have 'offset' set to 0. Only three instructions
+(``SDIV``, ``SMOD``, ``MOVSX``) have a non-zero 'offset'.
+
+Division, multiplication, and modulo operations for ``ALU`` are part
+of the "divmul32" conformance group, and division, multiplication, and
+modulo operations for ``ALU64`` are part of the "divmul64" conformance
+group.
+The division and modulo operations support both unsigned and signed flavors.
+
+For unsigned operations (``DIV`` and ``MOD``), for ``ALU``,
+'imm' is interpreted as a 32-bit unsigned value. For ``ALU64``,
+'imm' is first :term:`sign extended<Sign Extend>` from 32 to 64 bits, and then
+interpreted as a 64-bit unsigned value.
+
+For signed operations (``SDIV`` and ``SMOD``), for ``ALU``,
+'imm' is interpreted as a 32-bit signed value. For ``ALU64``, 'imm'
+is first :term:`sign extended<Sign Extend>` from 32 to 64 bits, and then
+interpreted as a 64-bit signed value.
+
+Note that there are varying definitions of the signed modulo operation
+when the dividend or divisor are negative, where implementations often
+vary by language such that Python, Ruby, etc. differ from C, Go, Java,
+etc. This specification requires that signed modulo MUST use truncated division
+(where -13 % 3 == -1) as implemented in C, Go, etc.::
+
+ a % n = a - n * trunc(a / n)
+
+The ``MOVSX`` instruction does a move operation with sign extension.
+``{MOVSX, X, ALU}`` :term:`sign extends<Sign Extend>` 8-bit and 16-bit operands into
+32-bit operands, and zeroes the remaining upper 32 bits.
+``{MOVSX, X, ALU64}`` :term:`sign extends<Sign Extend>` 8-bit, 16-bit, and 32-bit
+operands into 64-bit operands. Unlike other arithmetic instructions,
+``MOVSX`` is only defined for register source operands (``X``).
+
+``{MOV, K, ALU64}`` means::
+
+ dst = (s64)imm
+
+``{MOV, X, ALU}`` means::
+
+ dst = (u32)src
+
+``{MOVSX, X, ALU}`` with 'offset' 8 means::
+
+ dst = (u32)(s32)(s8)src
+
+
+The ``NEG`` instruction is only defined when the source bit is clear
+(``K``).
+
+Shift operations use a mask of 0x3F (63) for 64-bit operations and 0x1F (31)
+for 32-bit operations.
+
+Byte swap instructions
+----------------------
+
+The byte swap instructions use instruction classes of ``ALU`` and ``ALU64``
+and a 4-bit 'code' field of ``END``.
+
+The byte swap instructions operate on the destination register
+only and do not use a separate source register or immediate value.
+
+For ``ALU``, the 1-bit source operand field in the opcode is used to
+select what byte order the operation converts from or to. For
+``ALU64``, the 1-bit source operand field in the opcode is reserved
+and MUST be set to 0.
+
+.. table:: Byte swap instructions
+
+ ===== ======== ===== =================================================
+ class source value description
+ ===== ======== ===== =================================================
+ ALU LE 0 convert between host byte order and little endian
+ ALU BE 1 convert between host byte order and big endian
+ ALU64 Reserved 0 do byte swap unconditionally
+ ===== ======== ===== =================================================
+
+The 'imm' field encodes the width of the swap operations. The following widths
+are supported: 16, 32 and 64. Width 64 operations belong to the base64
+conformance group and other swap operations belong to the base32
+conformance group.
+
+Examples:
+
+``{END, LE, ALU}`` with 'imm' = 16/32/64 means::
+
+ dst = le16(dst)
+ dst = le32(dst)
+ dst = le64(dst)
+
+``{END, BE, ALU}`` with 'imm' = 16/32/64 means::
+
+ dst = be16(dst)
+ dst = be32(dst)
+ dst = be64(dst)
+
+``{END, TO, ALU64}`` with 'imm' = 16/32/64 means::
+
+ dst = bswap16(dst)
+ dst = bswap32(dst)
+ dst = bswap64(dst)
+
+Jump instructions
+-----------------
+
+``JMP32`` uses 32-bit wide operands and indicates the base32
+conformance group, while ``JMP`` uses 64-bit wide operands for
+otherwise identical operations, and indicates the base64 conformance
+group unless otherwise specified.
+The 'code' field encodes the operation as below:
+
+.. table:: Jump instructions
+
+ ======== ===== ======= ================================= ===================================================
+ code value src_reg description notes
+ ======== ===== ======= ================================= ===================================================
+ JA 0x0 0x0 PC += offset {JA, K, JMP} only
+ JA 0x0 0x0 PC += imm {JA, K, JMP32} only
+ JEQ 0x1 any PC += offset if dst == src
+ JGT 0x2 any PC += offset if dst > src unsigned
+ JGE 0x3 any PC += offset if dst >= src unsigned
+ JSET 0x4 any PC += offset if dst & src
+ JNE 0x5 any PC += offset if dst != src
+ JSGT 0x6 any PC += offset if dst > src signed
+ JSGE 0x7 any PC += offset if dst >= src signed
+ CALL 0x8 0x0 call helper function by static ID {CALL, K, JMP} only, see `Helper functions`_
+ CALL 0x8 0x1 call PC += imm {CALL, K, JMP} only, see `Program-local functions`_
+ CALL 0x8 0x2 call helper function by BTF ID {CALL, K, JMP} only, see `Helper functions`_
+ EXIT 0x9 0x0 return {CALL, K, JMP} only
+ JLT 0xa any PC += offset if dst < src unsigned
+ JLE 0xb any PC += offset if dst <= src unsigned
+ JSLT 0xc any PC += offset if dst < src signed
+ JSLE 0xd any PC += offset if dst <= src signed
+ ======== ===== ======= ================================= ===================================================
+
+where 'PC' denotes the program counter, and the offset to increment by
+is in units of 64-bit instructions relative to the instruction following
+the jump instruction. Thus 'PC += 1' skips execution of the next
+instruction if it's a basic instruction or results in undefined behavior
+if the next instruction is a 128-bit wide instruction.
+
+Example:
+
+``{JSGE, X, JMP32}`` means::
+
+ if (s32)dst s>= (s32)src goto +offset
+
+where 's>=' indicates a signed '>=' comparison.
+
+``{JLE, K, JMP}`` means::
+
+ if dst <= (u64)(s64)imm goto +offset
+
+``{JA, K, JMP32}`` means::
+
+ gotol +imm
+
+where 'imm' means the branch offset comes from the 'imm' field.
+
+Note that there are two flavors of ``JA`` instructions. The
+``JMP`` class permits a 16-bit jump offset specified by the 'offset'
+field, whereas the ``JMP32`` class permits a 32-bit jump offset
+specified by the 'imm' field. A > 16-bit conditional jump may be
+converted to a < 16-bit conditional jump plus a 32-bit unconditional
+jump.
+
+All ``CALL`` and ``JA`` instructions belong to the
+base32 conformance group.
+
+Helper functions
+~~~~~~~~~~~~~~~~
+
+Helper functions are a concept whereby BPF programs can call into a
+set of function calls exposed by the underlying platform.
+
+Historically, each helper function was identified by a static ID
+encoded in the 'imm' field. Further documentation of helper functions
+is outside the scope of this document and standardization is left for
+future work, but use is widely deployed and more information can be
+found in platform-specific documentation (e.g., Linux kernel documentation).
+
+Platforms that support the BPF Type Format (BTF) support identifying
+a helper function by a BTF ID encoded in the 'imm' field, where the BTF ID
+identifies the helper name and type. Further documentation of BTF
+is outside the scope of this document and standardization is left for
+future work, but use is widely deployed and more information can be
+found in platform-specific documentation (e.g., Linux kernel documentation).
+
+Program-local functions
+~~~~~~~~~~~~~~~~~~~~~~~
+Program-local functions are functions exposed by the same BPF program as the
+caller, and are referenced by offset from the instruction following the call
+instruction, similar to ``JA``. The offset is encoded in the 'imm' field of
+the call instruction. An ``EXIT`` within the program-local function will
+return to the caller.
+
+Load and store instructions
+===========================
+
+For load and store instructions (``LD``, ``LDX``, ``ST``, and ``STX``), the
+8-bit 'opcode' field is divided as follows::
+
+ +-+-+-+-+-+-+-+-+
+ |mode |sz |class|
+ +-+-+-+-+-+-+-+-+
+
+**mode**
+ The mode modifier is one of:
+
+ .. table:: Mode modifier
+
+ ============= ===== ==================================== =============
+ mode modifier value description reference
+ ============= ===== ==================================== =============
+ IMM 0 64-bit immediate instructions `64-bit immediate instructions`_
+ ABS 1 legacy BPF packet access (absolute) `Legacy BPF Packet access instructions`_
+ IND 2 legacy BPF packet access (indirect) `Legacy BPF Packet access instructions`_
+ MEM 3 regular load and store operations `Regular load and store operations`_
+ MEMSX 4 sign-extension load operations `Sign-extension load operations`_
+ ATOMIC 6 atomic operations `Atomic operations`_
+ ============= ===== ==================================== =============
+
+**sz (size)**
+ The size modifier is one of:
+
+ .. table:: Size modifier
+
+ ==== ===== =====================
+ size value description
+ ==== ===== =====================
+ W 0 word (4 bytes)
+ H 1 half word (2 bytes)
+ B 2 byte
+ DW 3 double word (8 bytes)
+ ==== ===== =====================
+
+ Instructions using ``DW`` belong to the base64 conformance group.
+
+**class**
+ The instruction class (see `Instruction classes`_)
+
+Regular load and store operations
+---------------------------------
+
+The ``MEM`` mode modifier is used to encode regular load and store
+instructions that transfer data between a register and memory.
+
+``{MEM, <size>, STX}`` means::
+
+ *(size *) (dst + offset) = src
+
+``{MEM, <size>, ST}`` means::
+
+ *(size *) (dst + offset) = imm
+
+``{MEM, <size>, LDX}`` means::
+
+ dst = *(unsigned size *) (src + offset)
+
+Where '<size>' is one of: ``B``, ``H``, ``W``, or ``DW``, and
+'unsigned size' is one of: u8, u16, u32, or u64.
+
+Sign-extension load operations
+------------------------------
+
+The ``MEMSX`` mode modifier is used to encode :term:`sign-extension<Sign Extend>` load
+instructions that transfer data between a register and memory.
+
+``{MEMSX, <size>, LDX}`` means::
+
+ dst = *(signed size *) (src + offset)
+
+Where '<size>' is one of: ``B``, ``H``, or ``W``, and
+'signed size' is one of: s8, s16, or s32.
+
+Atomic operations
+-----------------
+
+Atomic operations are operations that operate on memory and can not be
+interrupted or corrupted by other access to the same memory region
+by other BPF programs or means outside of this specification.
+
+All atomic operations supported by BPF are encoded as store operations
+that use the ``ATOMIC`` mode modifier as follows:
+
+* ``{ATOMIC, W, STX}`` for 32-bit operations, which are
+ part of the "atomic32" conformance group.
+* ``{ATOMIC, DW, STX}`` for 64-bit operations, which are
+ part of the "atomic64" conformance group.
+* 8-bit and 16-bit wide atomic operations are not supported.
+
+The 'imm' field is used to encode the actual atomic operation.
+Simple atomic operation use a subset of the values defined to encode
+arithmetic operations in the 'imm' field to encode the atomic operation:
+
+.. table:: Simple atomic operations
+
+ ======== ===== ===========
+ imm value description
+ ======== ===== ===========
+ ADD 0x00 atomic add
+ OR 0x40 atomic or
+ AND 0x50 atomic and
+ XOR 0xa0 atomic xor
+ ======== ===== ===========
+
+
+``{ATOMIC, W, STX}`` with 'imm' = ADD means::
+
+ *(u32 *)(dst + offset) += src
+
+``{ATOMIC, DW, STX}`` with 'imm' = ADD means::
+
+ *(u64 *)(dst + offset) += src
+
+In addition to the simple atomic operations, there also is a modifier and
+two complex atomic operations:
+
+.. table:: Complex atomic operations
+
+ =========== ================ ===========================
+ imm value description
+ =========== ================ ===========================
+ FETCH 0x01 modifier: return old value
+ XCHG 0xe0 | FETCH atomic exchange
+ CMPXCHG 0xf0 | FETCH atomic compare and exchange
+ =========== ================ ===========================
+
+The ``FETCH`` modifier is optional for simple atomic operations, and
+always set for the complex atomic operations. If the ``FETCH`` flag
+is set, then the operation also overwrites ``src`` with the value that
+was in memory before it was modified.
+
+The ``XCHG`` operation atomically exchanges ``src`` with the value
+addressed by ``dst + offset``.
+
+The ``CMPXCHG`` operation atomically compares the value addressed by
+``dst + offset`` with ``R0``. If they match, the value addressed by
+``dst + offset`` is replaced with ``src``. In either case, the
+value that was at ``dst + offset`` before the operation is zero-extended
+and loaded back to ``R0``.
+
+64-bit immediate instructions
+-----------------------------
+
+Instructions with the ``IMM`` 'mode' modifier use the wide instruction
+encoding defined in `Instruction encoding`_, and use the 'src_reg' field of the
+basic instruction to hold an opcode subtype.
+
+The following table defines a set of ``{IMM, DW, LD}`` instructions
+with opcode subtypes in the 'src_reg' field, using new terms such as "map"
+defined further below:
+
+.. table:: 64-bit immediate instructions
+
+ ======= ========================================= =========== ==============
+ src_reg pseudocode imm type dst type
+ ======= ========================================= =========== ==============
+ 0x0 dst = (next_imm << 32) | imm integer integer
+ 0x1 dst = map_by_fd(imm) map fd map
+ 0x2 dst = map_val(map_by_fd(imm)) + next_imm map fd data address
+ 0x3 dst = var_addr(imm) variable id data address
+ 0x4 dst = code_addr(imm) integer code address
+ 0x5 dst = map_by_idx(imm) map index map
+ 0x6 dst = map_val(map_by_idx(imm)) + next_imm map index data address
+ ======= ========================================= =========== ==============
+
+where
+
+* map_by_fd(imm) means to convert a 32-bit file descriptor into an address of a map (see `Maps`_)
+* map_by_idx(imm) means to convert a 32-bit index into an address of a map
+* map_val(map) gets the address of the first value in a given map
+* var_addr(imm) gets the address of a platform variable (see `Platform Variables`_) with a given id
+* code_addr(imm) gets the address of the instruction at a specified relative offset in number of (64-bit) instructions
+* the 'imm type' can be used by disassemblers for display
+* the 'dst type' can be used for verification and JIT compilation purposes
+
+Maps
+~~~~
+
+Maps are shared memory regions accessible by BPF programs on some platforms.
+A map can have various semantics as defined in a separate document, and may or
+may not have a single contiguous memory region, but the 'map_val(map)' is
+currently only defined for maps that do have a single contiguous memory region.
+
+Each map can have a file descriptor (fd) if supported by the platform, where
+'map_by_fd(imm)' means to get the map with the specified file descriptor. Each
+BPF program can also be defined to use a set of maps associated with the
+program at load time, and 'map_by_idx(imm)' means to get the map with the given
+index in the set associated with the BPF program containing the instruction.
+
+Platform Variables
+~~~~~~~~~~~~~~~~~~
+
+Platform variables are memory regions, identified by integer ids, exposed by
+the runtime and accessible by BPF programs on some platforms. The
+'var_addr(imm)' operation means to get the address of the memory region
+identified by the given id.
+
+Legacy BPF Packet access instructions
+-------------------------------------
+
+BPF previously introduced special instructions for access to packet data that were
+carried over from classic BPF. These instructions used an instruction
+class of ``LD``, a size modifier of ``W``, ``H``, or ``B``, and a
+mode modifier of ``ABS`` or ``IND``. The 'dst_reg' and 'offset' fields were
+set to zero, and 'src_reg' was set to zero for ``ABS``. However, these
+instructions are deprecated and SHOULD no longer be used. All legacy packet
+access instructions belong to the "packet" conformance group.
diff --git a/Documentation/bpf/verifier.rst b/Documentation/bpf/verifier.rst
index f0ec19db301c..510d15bc697b 100644
--- a/Documentation/bpf/verifier.rst
+++ b/Documentation/bpf/verifier.rst
@@ -347,270 +347,6 @@ However, only the value of register ``r1`` is important to successfully finish
verification. The goal of the liveness tracking algorithm is to spot this fact
and figure out that both states are actually equivalent.
-Data structures
-~~~~~~~~~~~~~~~
-
-Liveness is tracked using the following data structures::
-
- enum bpf_reg_liveness {
- REG_LIVE_NONE = 0,
- REG_LIVE_READ32 = 0x1,
- REG_LIVE_READ64 = 0x2,
- REG_LIVE_READ = REG_LIVE_READ32 | REG_LIVE_READ64,
- REG_LIVE_WRITTEN = 0x4,
- REG_LIVE_DONE = 0x8,
- };
-
- struct bpf_reg_state {
- ...
- struct bpf_reg_state *parent;
- ...
- enum bpf_reg_liveness live;
- ...
- };
-
- struct bpf_stack_state {
- struct bpf_reg_state spilled_ptr;
- ...
- };
-
- struct bpf_func_state {
- struct bpf_reg_state regs[MAX_BPF_REG];
- ...
- struct bpf_stack_state *stack;
- }
-
- struct bpf_verifier_state {
- struct bpf_func_state *frame[MAX_CALL_FRAMES];
- struct bpf_verifier_state *parent;
- ...
- }
-
-* ``REG_LIVE_NONE`` is an initial value assigned to ``->live`` fields upon new
- verifier state creation;
-
-* ``REG_LIVE_WRITTEN`` means that the value of the register (or stack slot) is
- defined by some instruction verified between this verifier state's parent and
- verifier state itself;
-
-* ``REG_LIVE_READ{32,64}`` means that the value of the register (or stack slot)
- is read by a some child state of this verifier state;
-
-* ``REG_LIVE_DONE`` is a marker used by ``clean_verifier_state()`` to avoid
- processing same verifier state multiple times and for some sanity checks;
-
-* ``->live`` field values are formed by combining ``enum bpf_reg_liveness``
- values using bitwise or.
-
-Register parentage chains
-~~~~~~~~~~~~~~~~~~~~~~~~~
-
-In order to propagate information between parent and child states, a *register
-parentage chain* is established. Each register or stack slot is linked to a
-corresponding register or stack slot in its parent state via a ``->parent``
-pointer. This link is established upon state creation in ``is_state_visited()``
-and might be modified by ``set_callee_state()`` called from
-``__check_func_call()``.
-
-The rules for correspondence between registers / stack slots are as follows:
-
-* For the current stack frame, registers and stack slots of the new state are
- linked to the registers and stack slots of the parent state with the same
- indices.
-
-* For the outer stack frames, only caller saved registers (r6-r9) and stack
- slots are linked to the registers and stack slots of the parent state with the
- same indices.
-
-* When function call is processed a new ``struct bpf_func_state`` instance is
- allocated, it encapsulates a new set of registers and stack slots. For this
- new frame, parent links for r6-r9 and stack slots are set to nil, parent links
- for r1-r5 are set to match caller r1-r5 parent links.
-
-This could be illustrated by the following diagram (arrows stand for
-``->parent`` pointers)::
-
- ... ; Frame #0, some instructions
- --- checkpoint #0 ---
- 1 : r6 = 42 ; Frame #0
- --- checkpoint #1 ---
- 2 : call foo() ; Frame #0
- ... ; Frame #1, instructions from foo()
- --- checkpoint #2 ---
- ... ; Frame #1, instructions from foo()
- --- checkpoint #3 ---
- exit ; Frame #1, return from foo()
- 3 : r1 = r6 ; Frame #0 <- current state
-
- +-------------------------------+-------------------------------+
- | Frame #0 | Frame #1 |
- Checkpoint +-------------------------------+-------------------------------+
- #0 | r0 | r1-r5 | r6-r9 | fp-8 ... |
- +-------------------------------+
- ^ ^ ^ ^
- | | | |
- Checkpoint +-------------------------------+
- #1 | r0 | r1-r5 | r6-r9 | fp-8 ... |
- +-------------------------------+
- ^ ^ ^
- |_______|_______|_______________
- | | |
- nil nil | | | nil nil
- | | | | | | |
- Checkpoint +-------------------------------+-------------------------------+
- #2 | r0 | r1-r5 | r6-r9 | fp-8 ... | r0 | r1-r5 | r6-r9 | fp-8 ... |
- +-------------------------------+-------------------------------+
- ^ ^ ^ ^ ^
- nil nil | | | | |
- | | | | | | |
- Checkpoint +-------------------------------+-------------------------------+
- #3 | r0 | r1-r5 | r6-r9 | fp-8 ... | r0 | r1-r5 | r6-r9 | fp-8 ... |
- +-------------------------------+-------------------------------+
- ^ ^
- nil nil | |
- | | | |
- Current +-------------------------------+
- state | r0 | r1-r5 | r6-r9 | fp-8 ... |
- +-------------------------------+
- \
- r6 read mark is propagated via these links
- all the way up to checkpoint #1.
- The checkpoint #1 contains a write mark for r6
- because of instruction (1), thus read propagation
- does not reach checkpoint #0 (see section below).
-
-Liveness marks tracking
-~~~~~~~~~~~~~~~~~~~~~~~
-
-For each processed instruction, the verifier tracks read and written registers
-and stack slots. The main idea of the algorithm is that read marks propagate
-back along the state parentage chain until they hit a write mark, which 'screens
-off' earlier states from the read. The information about reads is propagated by
-function ``mark_reg_read()`` which could be summarized as follows::
-
- mark_reg_read(struct bpf_reg_state *state, ...):
- parent = state->parent
- while parent:
- if state->live & REG_LIVE_WRITTEN:
- break
- if parent->live & REG_LIVE_READ64:
- break
- parent->live |= REG_LIVE_READ64
- state = parent
- parent = state->parent
-
-Notes:
-
-* The read marks are applied to the **parent** state while write marks are
- applied to the **current** state. The write mark on a register or stack slot
- means that it is updated by some instruction in the straight-line code leading
- from the parent state to the current state.
-
-* Details about REG_LIVE_READ32 are omitted.
-
-* Function ``propagate_liveness()`` (see section :ref:`read_marks_for_cache_hits`)
- might override the first parent link. Please refer to the comments in the
- ``propagate_liveness()`` and ``mark_reg_read()`` source code for further
- details.
-
-Because stack writes could have different sizes ``REG_LIVE_WRITTEN`` marks are
-applied conservatively: stack slots are marked as written only if write size
-corresponds to the size of the register, e.g. see function ``save_register_state()``.
-
-Consider the following example::
-
- 0: (*u64)(r10 - 8) = 0 ; define 8 bytes of fp-8
- --- checkpoint #0 ---
- 1: (*u32)(r10 - 8) = 1 ; redefine lower 4 bytes
- 2: r1 = (*u32)(r10 - 8) ; read lower 4 bytes defined at (1)
- 3: r2 = (*u32)(r10 - 4) ; read upper 4 bytes defined at (0)
-
-As stated above, the write at (1) does not count as ``REG_LIVE_WRITTEN``. Should
-it be otherwise, the algorithm above wouldn't be able to propagate the read mark
-from (3) to checkpoint #0.
-
-Once the ``BPF_EXIT`` instruction is reached ``update_branch_counts()`` is
-called to update the ``->branches`` counter for each verifier state in a chain
-of parent verifier states. When the ``->branches`` counter reaches zero the
-verifier state becomes a valid entry in a set of cached verifier states.
-
-Each entry of the verifier states cache is post-processed by a function
-``clean_live_states()``. This function marks all registers and stack slots
-without ``REG_LIVE_READ{32,64}`` marks as ``NOT_INIT`` or ``STACK_INVALID``.
-Registers/stack slots marked in this way are ignored in function ``stacksafe()``
-called from ``states_equal()`` when a state cache entry is considered for
-equivalence with a current state.
-
-Now it is possible to explain how the example from the beginning of the section
-works::
-
- 0: call bpf_get_prandom_u32()
- 1: r1 = 0
- 2: if r0 == 0 goto +1
- 3: r0 = 1
- --- checkpoint[0] ---
- 4: r0 = r1
- 5: exit
-
-* At instruction #2 branching point is reached and state ``{ r0 == 0, r1 == 0, pc == 4 }``
- is pushed to states processing queue (pc stands for program counter).
-
-* At instruction #4:
-
- * ``checkpoint[0]`` states cache entry is created: ``{ r0 == 1, r1 == 0, pc == 4 }``;
- * ``checkpoint[0].r0`` is marked as written;
- * ``checkpoint[0].r1`` is marked as read;
-
-* At instruction #5 exit is reached and ``checkpoint[0]`` can now be processed
- by ``clean_live_states()``. After this processing ``checkpoint[0].r0`` has a
- read mark and all other registers and stack slots are marked as ``NOT_INIT``
- or ``STACK_INVALID``
-
-* The state ``{ r0 == 0, r1 == 0, pc == 4 }`` is popped from the states queue
- and is compared against a cached state ``{ r1 == 0, pc == 4 }``, the states
- are considered equivalent.
-
-.. _read_marks_for_cache_hits:
-
-Read marks propagation for cache hits
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-Another point is the handling of read marks when a previously verified state is
-found in the states cache. Upon cache hit verifier must behave in the same way
-as if the current state was verified to the program exit. This means that all
-read marks, present on registers and stack slots of the cached state, must be
-propagated over the parentage chain of the current state. Example below shows
-why this is important. Function ``propagate_liveness()`` handles this case.
-
-Consider the following state parentage chain (S is a starting state, A-E are
-derived states, -> arrows show which state is derived from which)::
-
- r1 read
- <------------- A[r1] == 0
- C[r1] == 0
- S ---> A ---> B ---> exit E[r1] == 1
- |
- ` ---> C ---> D
- |
- ` ---> E ^
- |___ suppose all these
- ^ states are at insn #Y
- |
- suppose all these
- states are at insn #X
-
-* Chain of states ``S -> A -> B -> exit`` is verified first.
-
-* While ``B -> exit`` is verified, register ``r1`` is read and this read mark is
- propagated up to state ``A``.
-
-* When chain of states ``C -> D`` is verified the state ``D`` turns out to be
- equivalent to state ``B``.
-
-* The read mark for ``r1`` has to be propagated to state ``C``, otherwise state
- ``C`` might get mistakenly marked as equivalent to state ``E`` even though
- values for register ``r1`` differ between ``C`` and ``E``.
-
Understanding eBPF verifier messages
====================================
diff --git a/Documentation/cdrom/cdrom-standard.rst b/Documentation/cdrom/cdrom-standard.rst
index 7964fe134277..b97a4e9b9bd3 100644
--- a/Documentation/cdrom/cdrom-standard.rst
+++ b/Documentation/cdrom/cdrom-standard.rst
@@ -217,7 +217,7 @@ current *struct* is::
int (*media_changed)(struct cdrom_device_info *, int);
int (*tray_move)(struct cdrom_device_info *, int);
int (*lock_door)(struct cdrom_device_info *, int);
- int (*select_speed)(struct cdrom_device_info *, int);
+ int (*select_speed)(struct cdrom_device_info *, unsigned long);
int (*get_last_session) (struct cdrom_device_info *,
struct cdrom_multisession *);
int (*get_mcn)(struct cdrom_device_info *, struct cdrom_mcn *);
@@ -273,7 +273,6 @@ The drive-specific, minor-like information that is registered with
__u8 media_written; /* dirty flag, DVD+RW bookkeeping */
unsigned short mmc3_profile; /* current MMC3 profile */
int for_data; /* unknown:TBD */
- int (*exit)(struct cdrom_device_info *);/* unknown:TBD */
int mrw_mode_page; /* which MRW mode page is in use */
};
@@ -396,7 +395,7 @@ action need be taken, and the return value should be 0.
::
- int select_speed(struct cdrom_device_info *cdi, int speed)
+ int select_speed(struct cdrom_device_info *cdi, unsigned long speed)
Some CD-ROM drives are capable of changing their head-speed. There
are several reasons for changing the speed of a CD-ROM drive. Badly
diff --git a/Documentation/cdrom/index.rst b/Documentation/cdrom/index.rst
index e87a8785bc1a..3ac4f716612f 100644
--- a/Documentation/cdrom/index.rst
+++ b/Documentation/cdrom/index.rst
@@ -1,14 +1,13 @@
.. SPDX-License-Identifier: GPL-2.0
-=====
-cdrom
-=====
+======
+CD-ROM
+======
.. toctree::
:maxdepth: 1
cdrom-standard
- packet-writing
.. only:: subproject and html
diff --git a/Documentation/cdrom/packet-writing.rst b/Documentation/cdrom/packet-writing.rst
deleted file mode 100644
index 43db58c50d29..000000000000
--- a/Documentation/cdrom/packet-writing.rst
+++ /dev/null
@@ -1,139 +0,0 @@
-==============
-Packet writing
-==============
-
-Getting started quick
----------------------
-
-- Select packet support in the block device section and UDF support in
- the file system section.
-
-- Compile and install kernel and modules, reboot.
-
-- You need the udftools package (pktsetup, mkudffs, cdrwtool).
- Download from https://github.com/pali/udftools
-
-- Grab a new CD-RW disc and format it (assuming CD-RW is hdc, substitute
- as appropriate)::
-
- # cdrwtool -d /dev/hdc -q
-
-- Setup your writer::
-
- # pktsetup dev_name /dev/hdc
-
-- Now you can mount /dev/pktcdvd/dev_name and copy files to it. Enjoy::
-
- # mount /dev/pktcdvd/dev_name /cdrom -t udf -o rw,noatime
-
-
-Packet writing for DVD-RW media
--------------------------------
-
-DVD-RW discs can be written to much like CD-RW discs if they are in
-the so called "restricted overwrite" mode. To put a disc in restricted
-overwrite mode, run::
-
- # dvd+rw-format /dev/hdc
-
-You can then use the disc the same way you would use a CD-RW disc::
-
- # pktsetup dev_name /dev/hdc
- # mount /dev/pktcdvd/dev_name /cdrom -t udf -o rw,noatime
-
-
-Packet writing for DVD+RW media
--------------------------------
-
-According to the DVD+RW specification, a drive supporting DVD+RW discs
-shall implement "true random writes with 2KB granularity", which means
-that it should be possible to put any filesystem with a block size >=
-2KB on such a disc. For example, it should be possible to do::
-
- # dvd+rw-format /dev/hdc (only needed if the disc has never
- been formatted)
- # mkudffs /dev/hdc
- # mount /dev/hdc /cdrom -t udf -o rw,noatime
-
-However, some drives don't follow the specification and expect the
-host to perform aligned writes at 32KB boundaries. Other drives do
-follow the specification, but suffer bad performance problems if the
-writes are not 32KB aligned.
-
-Both problems can be solved by using the pktcdvd driver, which always
-generates aligned writes::
-
- # dvd+rw-format /dev/hdc
- # pktsetup dev_name /dev/hdc
- # mkudffs /dev/pktcdvd/dev_name
- # mount /dev/pktcdvd/dev_name /cdrom -t udf -o rw,noatime
-
-
-Packet writing for DVD-RAM media
---------------------------------
-
-DVD-RAM discs are random writable, so using the pktcdvd driver is not
-necessary. However, using the pktcdvd driver can improve performance
-in the same way it does for DVD+RW media.
-
-
-Notes
------
-
-- CD-RW media can usually not be overwritten more than about 1000
- times, so to avoid unnecessary wear on the media, you should always
- use the noatime mount option.
-
-- Defect management (ie automatic remapping of bad sectors) has not
- been implemented yet, so you are likely to get at least some
- filesystem corruption if the disc wears out.
-
-- Since the pktcdvd driver makes the disc appear as a regular block
- device with a 2KB block size, you can put any filesystem you like on
- the disc. For example, run::
-
- # /sbin/mke2fs /dev/pktcdvd/dev_name
-
- to create an ext2 filesystem on the disc.
-
-
-Using the pktcdvd sysfs interface
----------------------------------
-
-Since Linux 2.6.20, the pktcdvd module has a sysfs interface
-and can be controlled by it. For example the "pktcdvd" tool uses
-this interface. (see http://tom.ist-im-web.de/linux/software/pktcdvd )
-
-"pktcdvd" works similar to "pktsetup", e.g.::
-
- # pktcdvd -a dev_name /dev/hdc
- # mkudffs /dev/pktcdvd/dev_name
- # mount -t udf -o rw,noatime /dev/pktcdvd/dev_name /dvdram
- # cp files /dvdram
- # umount /dvdram
- # pktcdvd -r dev_name
-
-
-For a description of the sysfs interface look into the file:
-
- Documentation/ABI/testing/sysfs-class-pktcdvd
-
-
-Using the pktcdvd debugfs interface
------------------------------------
-
-To read pktcdvd device infos in human readable form, do::
-
- # cat /sys/kernel/debug/pktcdvd/pktcdvd[0-7]/info
-
-For a description of the debugfs interface look into the file:
-
- Documentation/ABI/testing/debugfs-pktcdvd
-
-
-
-Links
------
-
-See http://fy.chalmers.se/~appro/linux/DVD+RW/ for more information
-about DVD writing.
diff --git a/Documentation/conf.py b/Documentation/conf.py
index 37314afd1ac8..1ea2ae5c6276 100644
--- a/Documentation/conf.py
+++ b/Documentation/conf.py
@@ -1,25 +1,134 @@
-# -*- coding: utf-8 -*-
-#
-# The Linux Kernel documentation build configuration file, created by
-# sphinx-quickstart on Fri Feb 12 13:51:46 2016.
-#
-# This file is execfile()d with the current directory set to its
-# containing dir.
-#
-# Note that not all possible configuration values are present in this
-# autogenerated file.
-#
-# All configuration values have a default; values that are commented out
-# serve to show the default.
+# SPDX-License-Identifier: GPL-2.0-only
+# pylint: disable=C0103,C0209
+
+"""
+The Linux Kernel documentation build configuration file.
+"""
-import sys
import os
-import sphinx
import shutil
+import sys
+
+from textwrap import dedent
+
+import sphinx
+
+# If extensions (or modules to document with autodoc) are in another directory,
+# add these directories to sys.path here. If the directory is relative to the
+# documentation root, use os.path.abspath to make it absolute, like shown here.
+sys.path.insert(0, os.path.abspath("sphinx"))
+
+# Minimal supported version
+needs_sphinx = "3.4.3"
+
+# Get Sphinx version
+major, minor, patch = sphinx.version_info[:3] # pylint: disable=I1101
+
+# Include_patterns were added on Sphinx 5.1
+if (major < 5) or (major == 5 and minor < 1):
+ has_include_patterns = False
+else:
+ has_include_patterns = True
+ # Include patterns that don't contain directory names, in glob format
+ include_patterns = ["**.rst"]
+
+# Location of Documentation/ directory
+doctree = os.path.abspath(".")
+
+# Exclude of patterns that don't contain directory names, in glob format.
+exclude_patterns = []
+
+# List of patterns that contain directory names in glob format.
+dyn_include_patterns = []
+dyn_exclude_patterns = ["output"]
+
+# Currently, only netlink/specs has a parser for yaml.
+# Prefer using include patterns if available, as it is faster
+if has_include_patterns:
+ dyn_include_patterns.append("netlink/specs/*.yaml")
+else:
+ dyn_exclude_patterns.append("netlink/*.yaml")
+ dyn_exclude_patterns.append("devicetree/bindings/**.yaml")
+ dyn_exclude_patterns.append("core-api/kho/bindings/**.yaml")
+
+# Properly handle directory patterns and LaTeX docs
+# -------------------------------------------------
+
+def config_init(app, config):
+ """
+ Initialize path-dependent variabled
+
+ On Sphinx, all directories are relative to what it is passed as
+ SOURCEDIR parameter for sphinx-build. Due to that, all patterns
+ that have directory names on it need to be dynamically set, after
+ converting them to a relative patch.
+
+ As Sphinx doesn't include any patterns outside SOURCEDIR, we should
+ exclude relative patterns that start with "../".
+ """
+
+ # setup include_patterns dynamically
+ if has_include_patterns:
+ for p in dyn_include_patterns:
+ full = os.path.join(doctree, p)
+
+ rel_path = os.path.relpath(full, start=app.srcdir)
+ if rel_path.startswith("../"):
+ continue
+
+ config.include_patterns.append(rel_path)
+
+ # setup exclude_patterns dynamically
+ for p in dyn_exclude_patterns:
+ full = os.path.join(doctree, p)
+
+ rel_path = os.path.relpath(full, start=app.srcdir)
+ if rel_path.startswith("../"):
+ continue
+
+ config.exclude_patterns.append(rel_path)
+
+ # LaTeX and PDF output require a list of documents with are dependent
+ # of the app.srcdir. Add them here
+
+ # Handle the case where SPHINXDIRS is used
+ if not os.path.samefile(doctree, app.srcdir):
+ # Add a tag to mark that the build is actually a subproject
+ tags.add("subproject")
+
+ # get index.rst, if it exists
+ doc = os.path.basename(app.srcdir)
+ fname = "index"
+ if os.path.exists(os.path.join(app.srcdir, fname + ".rst")):
+ latex_documents.append((fname, doc + ".tex",
+ "Linux %s Documentation" % doc.capitalize(),
+ "The kernel development community",
+ "manual"))
+ return
+
+ # When building all docs, or when a main index.rst doesn't exist, seek
+ # for it on subdirectories
+ for doc in os.listdir(app.srcdir):
+ fname = os.path.join(doc, "index")
+ if not os.path.exists(os.path.join(app.srcdir, fname + ".rst")):
+ continue
+
+ has = False
+ for l in latex_documents:
+ if l[0] == fname:
+ has = True
+ break
+
+ if not has:
+ latex_documents.append((fname, doc + ".tex",
+ "Linux %s Documentation" % doc.capitalize(),
+ "The kernel development community",
+ "manual"))
# helper
# ------
+
def have_command(cmd):
"""Search ``cmd`` in the ``PATH`` environment.
@@ -28,101 +137,89 @@ def have_command(cmd):
"""
return shutil.which(cmd) is not None
-# Get Sphinx version
-major, minor, patch = sphinx.version_info[:3]
-
-#
-# Warn about older versions that we don't want to support for much
-# longer.
-#
-if (major < 2) or (major == 2 and minor < 4):
- print('WARNING: support for Sphinx < 2.4 will be removed soon.')
-
-# If extensions (or modules to document with autodoc) are in another directory,
-# add these directories to sys.path here. If the directory is relative to the
-# documentation root, use os.path.abspath to make it absolute, like shown here.
-sys.path.insert(0, os.path.abspath('sphinx'))
-from load_config import loadConfig
# -- General configuration ------------------------------------------------
-# If your documentation needs a minimal Sphinx version, state it here.
-needs_sphinx = '1.7'
-
-# Add any Sphinx extension module names here, as strings. They can be
-# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
-# ones.
-extensions = ['kerneldoc', 'rstFlatTable', 'kernel_include',
- 'kfigure', 'sphinx.ext.ifconfig', 'automarkup',
- 'maintainers_include', 'sphinx.ext.autosectionlabel',
- 'kernel_abi', 'kernel_feat']
-
-if major >= 3:
- if (major > 3) or (minor > 0 or patch >= 2):
- # Sphinx c function parser is more pedantic with regards to type
- # checking. Due to that, having macros at c:function cause problems.
- # Those needed to be scaped by using c_id_attributes[] array
- c_id_attributes = [
- # GCC Compiler types not parsed by Sphinx:
- "__restrict__",
-
- # include/linux/compiler_types.h:
- "__iomem",
- "__kernel",
- "noinstr",
- "notrace",
- "__percpu",
- "__rcu",
- "__user",
-
- # include/linux/compiler_attributes.h:
- "__alias",
- "__aligned",
- "__aligned_largest",
- "__always_inline",
- "__assume_aligned",
- "__cold",
- "__attribute_const__",
- "__copy",
- "__pure",
- "__designated_init",
- "__visible",
- "__printf",
- "__scanf",
- "__gnu_inline",
- "__malloc",
- "__mode",
- "__no_caller_saved_registers",
- "__noclone",
- "__nonstring",
- "__noreturn",
- "__packed",
- "__pure",
- "__section",
- "__always_unused",
- "__maybe_unused",
- "__used",
- "__weak",
- "noinline",
- "__fix_address",
-
- # include/linux/memblock.h:
- "__init_memblock",
- "__meminit",
-
- # include/linux/init.h:
- "__init",
- "__ref",
-
- # include/linux/linkage.h:
- "asmlinkage",
-
- # include/linux/btf.h
- "__bpf_kfunc",
- ]
-
-else:
- extensions.append('cdomain')
+# Add any Sphinx extensions in alphabetic order
+extensions = [
+ "automarkup",
+ "kernel_abi",
+ "kerneldoc",
+ "kernel_feat",
+ "kernel_include",
+ "kfigure",
+ "maintainers_include",
+ "parser_yaml",
+ "rstFlatTable",
+ "sphinx.ext.autosectionlabel",
+ "sphinx.ext.ifconfig",
+ "translations",
+]
+# Since Sphinx version 3, the C function parser is more pedantic with regards
+# to type checking. Due to that, having macros at c:function cause problems.
+# Those needed to be escaped by using c_id_attributes[] array
+c_id_attributes = [
+ # GCC Compiler types not parsed by Sphinx:
+ "__restrict__",
+
+ # include/linux/compiler_types.h:
+ "__iomem",
+ "__kernel",
+ "noinstr",
+ "notrace",
+ "__percpu",
+ "__rcu",
+ "__user",
+ "__force",
+ "__counted_by_le",
+ "__counted_by_be",
+
+ # include/linux/compiler_attributes.h:
+ "__alias",
+ "__aligned",
+ "__aligned_largest",
+ "__always_inline",
+ "__assume_aligned",
+ "__cold",
+ "__attribute_const__",
+ "__copy",
+ "__pure",
+ "__designated_init",
+ "__visible",
+ "__printf",
+ "__scanf",
+ "__gnu_inline",
+ "__malloc",
+ "__mode",
+ "__no_caller_saved_registers",
+ "__noclone",
+ "__nonstring",
+ "__noreturn",
+ "__packed",
+ "__pure",
+ "__section",
+ "__always_unused",
+ "__maybe_unused",
+ "__used",
+ "__weak",
+ "noinline",
+ "__fix_address",
+ "__counted_by",
+
+ # include/linux/memblock.h:
+ "__init_memblock",
+ "__meminit",
+
+ # include/linux/init.h:
+ "__init",
+ "__ref",
+
+ # include/linux/linkage.h:
+ "asmlinkage",
+
+ # include/linux/btf.h
+ "__bpf_kfunc",
+]
# Ensure that autosectionlabel will produce unique names
autosectionlabel_prefix_document = True
@@ -131,54 +228,51 @@ autosectionlabel_maxdepth = 2
# Load math renderer:
# For html builder, load imgmath only when its dependencies are met.
# mathjax is the default math renderer since Sphinx 1.8.
-have_latex = have_command('latex')
-have_dvipng = have_command('dvipng')
+have_latex = have_command("latex")
+have_dvipng = have_command("dvipng")
load_imgmath = have_latex and have_dvipng
# Respect SPHINX_IMGMATH (for html docs only)
-if 'SPHINX_IMGMATH' in os.environ:
- env_sphinx_imgmath = os.environ['SPHINX_IMGMATH']
- if 'yes' in env_sphinx_imgmath:
+if "SPHINX_IMGMATH" in os.environ:
+ env_sphinx_imgmath = os.environ["SPHINX_IMGMATH"]
+ if "yes" in env_sphinx_imgmath:
load_imgmath = True
- elif 'no' in env_sphinx_imgmath:
+ elif "no" in env_sphinx_imgmath:
load_imgmath = False
else:
sys.stderr.write("Unknown env SPHINX_IMGMATH=%s ignored.\n" % env_sphinx_imgmath)
-# Always load imgmath for Sphinx <1.8 or for epub docs
-load_imgmath = (load_imgmath or (major == 1 and minor < 8)
- or 'epub' in sys.argv)
-
if load_imgmath:
extensions.append("sphinx.ext.imgmath")
- math_renderer = 'imgmath'
+ math_renderer = "imgmath"
else:
- math_renderer = 'mathjax'
+ math_renderer = "mathjax"
# Add any paths that contain templates here, relative to this directory.
-templates_path = ['sphinx/templates']
+templates_path = ["sphinx/templates"]
-# The suffix(es) of source filenames.
-# You can specify multiple suffix as a list of string:
-# source_suffix = ['.rst', '.md']
-source_suffix = '.rst'
+# The suffixes of source filenames that will be automatically parsed
+source_suffix = {
+ ".rst": "restructuredtext",
+ ".yaml": "yaml",
+}
# The encoding of source files.
-#source_encoding = 'utf-8-sig'
+# source_encoding = 'utf-8-sig'
# The master toctree document.
-master_doc = 'index'
+master_doc = "index"
# General information about the project.
-project = 'The Linux Kernel'
-copyright = 'The kernel development community'
-author = 'The kernel development community'
+project = "The Linux Kernel"
+copyright = "The kernel development community" # pylint: disable=W0622
+author = "The kernel development community"
# The version info for the project you're documenting, acts as replacement for
# |version| and |release|, also used in various other places throughout the
# built documents.
#
-# In a normal build, version and release are are set to KERNELVERSION and
+# In a normal build, version and release are set to KERNELVERSION and
# KERNELRELEASE, respectively, from the Makefile via Sphinx command line
# arguments.
#
@@ -187,86 +281,86 @@ author = 'The kernel development community'
try:
makefile_version = None
makefile_patchlevel = None
- for line in open('../Makefile'):
- key, val = [x.strip() for x in line.split('=', 2)]
- if key == 'VERSION':
- makefile_version = val
- elif key == 'PATCHLEVEL':
- makefile_patchlevel = val
- if makefile_version and makefile_patchlevel:
- break
-except:
+ with open("../Makefile", encoding="utf=8") as fp:
+ for line in fp:
+ key, val = [x.strip() for x in line.split("=", 2)]
+ if key == "VERSION":
+ makefile_version = val
+ elif key == "PATCHLEVEL":
+ makefile_patchlevel = val
+ if makefile_version and makefile_patchlevel:
+ break
+except Exception:
pass
finally:
if makefile_version and makefile_patchlevel:
- version = release = makefile_version + '.' + makefile_patchlevel
+ version = release = makefile_version + "." + makefile_patchlevel
else:
version = release = "unknown version"
-#
-# HACK: there seems to be no easy way for us to get at the version and
-# release information passed in from the makefile...so go pawing through the
-# command-line options and find it for ourselves.
-#
+
def get_cline_version():
- c_version = c_release = ''
+ """
+ HACK: There seems to be no easy way for us to get at the version and
+ release information passed in from the makefile...so go pawing through the
+ command-line options and find it for ourselves.
+ """
+
+ c_version = c_release = ""
for arg in sys.argv:
- if arg.startswith('version='):
+ if arg.startswith("version="):
c_version = arg[8:]
- elif arg.startswith('release='):
+ elif arg.startswith("release="):
c_release = arg[8:]
if c_version:
if c_release:
- return c_version + '-' + c_release
+ return c_version + "-" + c_release
return c_version
- return version # Whatever we came up with before
+ return version # Whatever we came up with before
+
# The language for content autogenerated by Sphinx. Refer to documentation
# for a list of supported languages.
#
# This is also used if you do content translation via gettext catalogs.
# Usually you set "language" from the command line for these cases.
-language = 'en'
+language = "en"
# There are two options for replacing |today|: either, you set today to some
# non-false value, then it is used:
-#today = ''
+# today = ''
# Else, today_fmt is used as the format for a strftime call.
-#today_fmt = '%B %d, %Y'
-
-# List of patterns, relative to source directory, that match files and
-# directories to ignore when looking for source files.
-exclude_patterns = ['output']
+# today_fmt = '%B %d, %Y'
# The reST default role (used for this markup: `text`) to use for all
# documents.
-#default_role = None
+# default_role = None
# If true, '()' will be appended to :func: etc. cross-reference text.
-#add_function_parentheses = True
+# add_function_parentheses = True
# If true, the current module name will be prepended to all description
# unit titles (such as .. function::).
-#add_module_names = True
+# add_module_names = True
# If true, sectionauthor and moduleauthor directives will be shown in the
# output. They are ignored by default.
-#show_authors = False
+# show_authors = False
# The name of the Pygments (syntax highlighting) style to use.
-pygments_style = 'sphinx'
+pygments_style = "sphinx"
# A list of ignored prefixes for module index sorting.
-#modindex_common_prefix = []
+# modindex_common_prefix = []
# If true, keep warnings as "system message" paragraphs in the built documents.
-#keep_warnings = False
+# keep_warnings = False
# If true, `todo` and `todoList` produce output, else they produce nothing.
todo_include_todos = False
-primary_domain = 'c'
-highlight_language = 'none'
+primary_domain = "c"
+highlight_language = "none"
# -- Options for HTML output ----------------------------------------------
@@ -274,43 +368,45 @@ highlight_language = 'none'
# a list of builtin themes.
# Default theme
-html_theme = 'alabaster'
+html_theme = "alabaster"
html_css_files = []
if "DOCS_THEME" in os.environ:
html_theme = os.environ["DOCS_THEME"]
-if html_theme == 'sphinx_rtd_theme' or html_theme == 'sphinx_rtd_dark_mode':
+if html_theme in ["sphinx_rtd_theme", "sphinx_rtd_dark_mode"]:
# Read the Docs theme
try:
import sphinx_rtd_theme
+
html_theme_path = [sphinx_rtd_theme.get_html_theme_path()]
# Add any paths that contain custom static files (such as style sheets) here,
# relative to this directory. They are copied after the builtin static files,
# so a file named "default.css" will overwrite the builtin "default.css".
html_css_files = [
- 'theme_overrides.css',
+ "theme_overrides.css",
]
# Read the Docs dark mode override theme
- if html_theme == 'sphinx_rtd_dark_mode':
+ if html_theme == "sphinx_rtd_dark_mode":
try:
- import sphinx_rtd_dark_mode
- extensions.append('sphinx_rtd_dark_mode')
+ import sphinx_rtd_dark_mode # pylint: disable=W0611
+
+ extensions.append("sphinx_rtd_dark_mode")
except ImportError:
- html_theme == 'sphinx_rtd_theme'
+ html_theme = "sphinx_rtd_theme"
- if html_theme == 'sphinx_rtd_theme':
- # Add color-specific RTD normal mode
- html_css_files.append('theme_rtd_colors.css')
+ if html_theme == "sphinx_rtd_theme":
+ # Add color-specific RTD normal mode
+ html_css_files.append("theme_rtd_colors.css")
html_theme_options = {
- 'navigation_depth': -1,
+ "navigation_depth": -1,
}
except ImportError:
- html_theme = 'alabaster'
+ html_theme = "alabaster"
if "DOCS_CSS" in os.environ:
css = os.environ["DOCS_CSS"].split(" ")
@@ -318,22 +414,14 @@ if "DOCS_CSS" in os.environ:
for l in css:
html_css_files.append(l)
-if major <= 1 and minor < 8:
- html_context = {
- 'css_files': [],
- }
-
- for l in html_css_files:
- html_context['css_files'].append('_static/' + l)
-
-if html_theme == 'alabaster':
+if html_theme == "alabaster":
html_theme_options = {
- 'description': get_cline_version(),
- 'page_width': '65em',
- 'sidebar_width': '15em',
- 'fixed_sidebar': 'true',
- 'font_size': 'inherit',
- 'font_family': 'serif',
+ "description": get_cline_version(),
+ "page_width": "65em",
+ "sidebar_width": "15em",
+ "fixed_sidebar": "true",
+ "font_size": "inherit",
+ "font_family": "serif",
}
sys.stderr.write("Using %s theme\n" % html_theme)
@@ -341,135 +429,100 @@ sys.stderr.write("Using %s theme\n" % html_theme)
# Add any paths that contain custom static files (such as style sheets) here,
# relative to this directory. They are copied after the builtin static files,
# so a file named "default.css" will overwrite the builtin "default.css".
-html_static_path = ['sphinx-static']
+html_static_path = ["sphinx-static"]
# If true, Docutils "smart quotes" will be used to convert quotes and dashes
-# to typographically correct entities. This will convert "--" to "—",
-# which is not always what we want, so disable it.
-smartquotes = False
+# to typographically correct entities. However, conversion of "--" to "—"
+# is not always what we want, so enable only quotes.
+smartquotes_action = "q"
# Custom sidebar templates, maps document names to template names.
# Note that the RTD theme ignores this
-html_sidebars = { '**': ['searchbox.html', 'kernel-toc.html', 'sourcelink.html']}
+html_sidebars = {"**": ["searchbox.html",
+ "kernel-toc.html",
+ "sourcelink.html"]}
# about.html is available for alabaster theme. Add it at the front.
-if html_theme == 'alabaster':
- html_sidebars['**'].insert(0, 'about.html')
+if html_theme == "alabaster":
+ html_sidebars["**"].insert(0, "about.html")
+
+# The name of an image file (relative to this directory) to place at the top
+# of the sidebar.
+html_logo = "images/logo.svg"
# Output file base name for HTML help builder.
-htmlhelp_basename = 'TheLinuxKerneldoc'
+htmlhelp_basename = "TheLinuxKerneldoc"
# -- Options for LaTeX output ---------------------------------------------
latex_elements = {
# The paper size ('letterpaper' or 'a4paper').
- 'papersize': 'a4paper',
-
+ "papersize": "a4paper",
+ "passoptionstopackages": dedent(r"""
+ \PassOptionsToPackage{svgnames}{xcolor}
+ """),
# The font size ('10pt', '11pt' or '12pt').
- 'pointsize': '11pt',
-
+ "pointsize": "11pt",
+ # Needed to generate a .ind file
+ "printindex": r"\footnotesize\raggedright\printindex",
# Latex figure (float) alignment
- #'figure_align': 'htbp',
-
+ # 'figure_align': 'htbp',
# Don't mangle with UTF-8 chars
- 'inputenc': '',
- 'utf8extra': '',
-
+ "fontenc": "",
+ "inputenc": "",
+ "utf8extra": "",
# Set document margins
- 'sphinxsetup': '''
+ "sphinxsetup": dedent(r"""
hmargin=0.5in, vmargin=1in,
parsedliteralwraps=true,
verbatimhintsturnover=false,
- ''',
-
+ """),
+ #
+ # Some of our authors are fond of deep nesting; tell latex to
+ # cope.
+ #
+ "maxlistdepth": "10",
# For CJK One-half spacing, need to be in front of hyperref
- 'extrapackages': r'\usepackage{setspace}',
-
- # Additional stuff for the LaTeX preamble.
- 'preamble': '''
- % Use some font with UTF-8 support with XeLaTeX
- \\usepackage{fontspec}
- \\setsansfont{DejaVu Sans}
- \\setromanfont{DejaVu Serif}
- \\setmonofont{DejaVu Sans Mono}
- ''',
-}
-
-# Fix reference escape troubles with Sphinx 1.4.x
-if major == 1:
- latex_elements['preamble'] += '\\renewcommand*{\\DUrole}[2]{ #2 }\n'
-
-
-# Load kerneldoc specific LaTeX settings
-latex_elements['preamble'] += '''
+ "extrapackages": r"\usepackage{setspace}",
+ "fontpkg": dedent(r"""
+ \usepackage{fontspec}
+ \setmainfont{DejaVu Serif}
+ \setsansfont{DejaVu Sans}
+ \setmonofont{DejaVu Sans Mono}
+ \newfontfamily\headingfont{DejaVu Serif}
+ """),
+ "preamble": dedent(r"""
% Load kerneldoc specific LaTeX settings
- \\input{kerneldoc-preamble.sty}
-'''
-
-# With Sphinx 1.6, it is possible to change the Bg color directly
-# by using:
-# \definecolor{sphinxnoteBgColor}{RGB}{204,255,255}
-# \definecolor{sphinxwarningBgColor}{RGB}{255,204,204}
-# \definecolor{sphinxattentionBgColor}{RGB}{255,255,204}
-# \definecolor{sphinximportantBgColor}{RGB}{192,255,204}
-#
-# However, it require to use sphinx heavy box with:
-#
-# \renewenvironment{sphinxlightbox} {%
-# \\begin{sphinxheavybox}
-# }
-# \\end{sphinxheavybox}
-# }
-#
-# Unfortunately, the implementation is buggy: if a note is inside a
-# table, it isn't displayed well. So, for now, let's use boring
-# black and white notes.
-
-# Grouping the document tree into LaTeX files. List of tuples
-# (source start file, target name, title,
-# author, documentclass [howto, manual, or own class]).
-# Sorted in alphabetical order
-latex_documents = [
-]
+ \input{kerneldoc-preamble.sty}
+ """)
+}
-# Add all other index files from Documentation/ subdirectories
-for fn in os.listdir('.'):
- doc = os.path.join(fn, "index")
- if os.path.exists(doc + ".rst"):
- has = False
- for l in latex_documents:
- if l[0] == doc:
- has = True
- break
- if not has:
- latex_documents.append((doc, fn + '.tex',
- 'Linux %s Documentation' % fn.capitalize(),
- 'The kernel development community',
- 'manual'))
+# This will be filled up by config-inited event
+latex_documents = []
# The name of an image file (relative to this directory) to place at the top of
# the title page.
-#latex_logo = None
+# latex_logo = None
# For "manual" documents, if this is true, then toplevel headings are parts,
# not chapters.
-#latex_use_parts = False
+# latex_use_parts = False
# If true, show page references after internal links.
-#latex_show_pagerefs = False
+# latex_show_pagerefs = False
# If true, show URL addresses after external links.
-#latex_show_urls = False
+# latex_show_urls = False
# Documents to append as an appendix to all manuals.
-#latex_appendices = []
+# latex_appendices = []
# If false, no module index is generated.
-#latex_domain_indices = True
+# latex_domain_indices = True
# Additional LaTeX stuff to be copied to build directory
latex_additional_files = [
- 'sphinx/kerneldoc-preamble.sty',
+ "sphinx/kerneldoc-preamble.sty",
]
@@ -478,12 +531,11 @@ latex_additional_files = [
# One entry per manual page. List of tuples
# (source start file, name, description, authors, manual section).
man_pages = [
- (master_doc, 'thelinuxkernel', 'The Linux Kernel Documentation',
- [author], 1)
+ (master_doc, "thelinuxkernel", "The Linux Kernel Documentation", [author], 1)
]
# If true, show URL addresses after external links.
-#man_show_urls = False
+# man_show_urls = False
# -- Options for Texinfo output -------------------------------------------
@@ -491,11 +543,15 @@ man_pages = [
# Grouping the document tree into Texinfo files. List of tuples
# (source start file, target name, title, author,
# dir menu entry, description, category)
-texinfo_documents = [
- (master_doc, 'TheLinuxKernel', 'The Linux Kernel Documentation',
- author, 'TheLinuxKernel', 'One line description of project.',
- 'Miscellaneous'),
-]
+texinfo_documents = [(
+ master_doc,
+ "TheLinuxKernel",
+ "The Linux Kernel Documentation",
+ author,
+ "TheLinuxKernel",
+ "One line description of project.",
+ "Miscellaneous",
+ ),]
# -- Options for Epub output ----------------------------------------------
@@ -506,9 +562,9 @@ epub_publisher = author
epub_copyright = copyright
# A list of files that should not be packed into the epub file.
-epub_exclude_files = ['search.html']
+epub_exclude_files = ["search.html"]
-#=======
+# =======
# rst2pdf
#
# Grouping the document tree into PDF files. List of tuples
@@ -520,17 +576,16 @@ epub_exclude_files = ['search.html']
# multiple PDF files here actually tries to get the cross-referencing right
# *between* PDF files.
pdf_documents = [
- ('kernel-documentation', u'Kernel', u'Kernel', u'J. Random Bozo'),
+ ("kernel-documentation", "Kernel", "Kernel", "J. Random Bozo"),
]
# kernel-doc extension configuration for running Sphinx directly (e.g. by Read
# the Docs). In a normal build, these are supplied from the Makefile via command
# line arguments.
-kerneldoc_bin = '../scripts/kernel-doc'
-kerneldoc_srctree = '..'
-
-# ------------------------------------------------------------------------------
-# Since loadConfig overwrites settings from the global namespace, it has to be
-# the last statement in the conf.py file
-# ------------------------------------------------------------------------------
-loadConfig(globals())
+kerneldoc_bin = "../scripts/kernel-doc.py"
+kerneldoc_srctree = ".."
+
+def setup(app):
+ """Patterns need to be updated at init time on older Sphinx versions"""
+
+ app.connect('config-inited', config_init)
diff --git a/Documentation/core-api/assoc_array.rst b/Documentation/core-api/assoc_array.rst
index 792bbf9939e1..19d89f92bf8d 100644
--- a/Documentation/core-api/assoc_array.rst
+++ b/Documentation/core-api/assoc_array.rst
@@ -92,18 +92,18 @@ There are two functions for dealing with the script:
void assoc_array_apply_edit(struct assoc_array_edit *edit);
-This will perform the edit functions, interpolating various write barriers
-to permit accesses under the RCU read lock to continue. The edit script
-will then be passed to ``call_rcu()`` to free it and any dead stuff it points
-to.
+ This will perform the edit functions, interpolating various write barriers
+ to permit accesses under the RCU read lock to continue. The edit script
+ will then be passed to ``call_rcu()`` to free it and any dead stuff it
+ points to.
2. Cancel an edit script::
void assoc_array_cancel_edit(struct assoc_array_edit *edit);
-This frees the edit script and all preallocated memory immediately. If
-this was for insertion, the new object is _not_ released by this function,
-but must rather be released by the caller.
+ This frees the edit script and all preallocated memory immediately. If
+ this was for insertion, the new object is *not* released by this function,
+ but must rather be released by the caller.
These functions are guaranteed not to fail.
@@ -123,43 +123,43 @@ This points to a number of methods, all of which need to be provided:
unsigned long (*get_key_chunk)(const void *index_key, int level);
-This should return a chunk of caller-supplied index key starting at the
-*bit* position given by the level argument. The level argument will be a
-multiple of ``ASSOC_ARRAY_KEY_CHUNK_SIZE`` and the function should return
-``ASSOC_ARRAY_KEY_CHUNK_SIZE bits``. No error is possible.
+ This should return a chunk of caller-supplied index key starting at the
+ *bit* position given by the level argument. The level argument will be a
+ multiple of ``ASSOC_ARRAY_KEY_CHUNK_SIZE`` and the function should return
+ ``ASSOC_ARRAY_KEY_CHUNK_SIZE bits``. No error is possible.
2. Get a chunk of an object's index key::
unsigned long (*get_object_key_chunk)(const void *object, int level);
-As the previous function, but gets its data from an object in the array
-rather than from a caller-supplied index key.
+ As the previous function, but gets its data from an object in the array
+ rather than from a caller-supplied index key.
3. See if this is the object we're looking for::
bool (*compare_object)(const void *object, const void *index_key);
-Compare the object against an index key and return ``true`` if it matches and
-``false`` if it doesn't.
+ Compare the object against an index key and return ``true`` if it matches
+ and ``false`` if it doesn't.
4. Diff the index keys of two objects::
int (*diff_objects)(const void *object, const void *index_key);
-Return the bit position at which the index key of the specified object
-differs from the given index key or -1 if they are the same.
+ Return the bit position at which the index key of the specified object
+ differs from the given index key or -1 if they are the same.
5. Free an object::
void (*free_object)(void *object);
-Free the specified object. Note that this may be called an RCU grace period
-after ``assoc_array_apply_edit()`` was called, so ``synchronize_rcu()`` may be
-necessary on module unloading.
+ Free the specified object. Note that this may be called an RCU grace period
+ after ``assoc_array_apply_edit()`` was called, so ``synchronize_rcu()`` may
+ be necessary on module unloading.
Manipulation Functions
@@ -171,7 +171,7 @@ There are a number of functions for manipulating an associative array:
void assoc_array_init(struct assoc_array *array);
-This initialises the base structure for an associative array. It can't fail.
+ This initialises the base structure for an associative array. It can't fail.
2. Insert/replace an object in an associative array::
@@ -182,21 +182,21 @@ This initialises the base structure for an associative array. It can't fail.
const void *index_key,
void *object);
-This inserts the given object into the array. Note that the least
-significant bit of the pointer must be zero as it's used to type-mark
-pointers internally.
+ This inserts the given object into the array. Note that the least
+ significant bit of the pointer must be zero as it's used to type-mark
+ pointers internally.
-If an object already exists for that key then it will be replaced with the
-new object and the old one will be freed automatically.
+ If an object already exists for that key then it will be replaced with the
+ new object and the old one will be freed automatically.
-The ``index_key`` argument should hold index key information and is
-passed to the methods in the ops table when they are called.
+ The ``index_key`` argument should hold index key information and is
+ passed to the methods in the ops table when they are called.
-This function makes no alteration to the array itself, but rather returns
-an edit script that must be applied. ``-ENOMEM`` is returned in the case of
-an out-of-memory error.
+ This function makes no alteration to the array itself, but rather returns
+ an edit script that must be applied. ``-ENOMEM`` is returned in the case of
+ an out-of-memory error.
-The caller should lock exclusively against other modifiers of the array.
+ The caller should lock exclusively against other modifiers of the array.
3. Delete an object from an associative array::
@@ -206,15 +206,15 @@ The caller should lock exclusively against other modifiers of the array.
const struct assoc_array_ops *ops,
const void *index_key);
-This deletes an object that matches the specified data from the array.
+ This deletes an object that matches the specified data from the array.
-The ``index_key`` argument should hold index key information and is
-passed to the methods in the ops table when they are called.
+ The ``index_key`` argument should hold index key information and is
+ passed to the methods in the ops table when they are called.
-This function makes no alteration to the array itself, but rather returns
-an edit script that must be applied. ``-ENOMEM`` is returned in the case of
-an out-of-memory error. ``NULL`` will be returned if the specified object is
-not found within the array.
+ This function makes no alteration to the array itself, but rather returns
+ an edit script that must be applied. ``-ENOMEM`` is returned in the case of
+ an out-of-memory error. ``NULL`` will be returned if the specified object
+ is not found within the array.
The caller should lock exclusively against other modifiers of the array.
@@ -225,14 +225,14 @@ The caller should lock exclusively against other modifiers of the array.
assoc_array_clear(struct assoc_array *array,
const struct assoc_array_ops *ops);
-This deletes all the objects from an associative array and leaves it
-completely empty.
+ This deletes all the objects from an associative array and leaves it
+ completely empty.
-This function makes no alteration to the array itself, but rather returns
-an edit script that must be applied. ``-ENOMEM`` is returned in the case of
-an out-of-memory error.
+ This function makes no alteration to the array itself, but rather returns
+ an edit script that must be applied. ``-ENOMEM`` is returned in the case of
+ an out-of-memory error.
-The caller should lock exclusively against other modifiers of the array.
+ The caller should lock exclusively against other modifiers of the array.
5. Destroy an associative array, deleting all objects::
@@ -240,14 +240,14 @@ The caller should lock exclusively against other modifiers of the array.
void assoc_array_destroy(struct assoc_array *array,
const struct assoc_array_ops *ops);
-This destroys the contents of the associative array and leaves it
-completely empty. It is not permitted for another thread to be traversing
-the array under the RCU read lock at the same time as this function is
-destroying it as no RCU deferral is performed on memory release -
-something that would require memory to be allocated.
+ This destroys the contents of the associative array and leaves it
+ completely empty. It is not permitted for another thread to be traversing
+ the array under the RCU read lock at the same time as this function is
+ destroying it as no RCU deferral is performed on memory release -
+ something that would require memory to be allocated.
-The caller should lock exclusively against other modifiers and accessors
-of the array.
+ The caller should lock exclusively against other modifiers and accessors
+ of the array.
6. Garbage collect an associative array::
@@ -257,24 +257,24 @@ of the array.
bool (*iterator)(void *object, void *iterator_data),
void *iterator_data);
-This iterates over the objects in an associative array and passes each one to
-``iterator()``. If ``iterator()`` returns ``true``, the object is kept. If it
-returns ``false``, the object will be freed. If the ``iterator()`` function
-returns ``true``, it must perform any appropriate refcount incrementing on the
-object before returning.
+ This iterates over the objects in an associative array and passes each one
+ to ``iterator()``. If ``iterator()`` returns ``true``, the object is kept.
+ If it returns ``false``, the object will be freed. If the ``iterator()``
+ function returns ``true``, it must perform any appropriate refcount
+ incrementing on the object before returning.
-The internal tree will be packed down if possible as part of the iteration
-to reduce the number of nodes in it.
+ The internal tree will be packed down if possible as part of the iteration
+ to reduce the number of nodes in it.
-The ``iterator_data`` is passed directly to ``iterator()`` and is otherwise
-ignored by the function.
+ The ``iterator_data`` is passed directly to ``iterator()`` and is otherwise
+ ignored by the function.
-The function will return ``0`` if successful and ``-ENOMEM`` if there wasn't
-enough memory.
+ The function will return ``0`` if successful and ``-ENOMEM`` if there wasn't
+ enough memory.
-It is possible for other threads to iterate over or search the array under
-the RCU read lock while this function is in progress. The caller should
-lock exclusively against other modifiers of the array.
+ It is possible for other threads to iterate over or search the array under
+ the RCU read lock while this function is in progress. The caller should
+ lock exclusively against other modifiers of the array.
Access Functions
@@ -289,19 +289,19 @@ There are two functions for accessing an associative array:
void *iterator_data),
void *iterator_data);
-This passes each object in the array to the iterator callback function.
-``iterator_data`` is private data for that function.
+ This passes each object in the array to the iterator callback function.
+ ``iterator_data`` is private data for that function.
-This may be used on an array at the same time as the array is being
-modified, provided the RCU read lock is held. Under such circumstances,
-it is possible for the iteration function to see some objects twice. If
-this is a problem, then modification should be locked against. The
-iteration algorithm should not, however, miss any objects.
+ This may be used on an array at the same time as the array is being
+ modified, provided the RCU read lock is held. Under such circumstances,
+ it is possible for the iteration function to see some objects twice. If
+ this is a problem, then modification should be locked against. The
+ iteration algorithm should not, however, miss any objects.
-The function will return ``0`` if no objects were in the array or else it will
-return the result of the last iterator function called. Iteration stops
-immediately if any call to the iteration function results in a non-zero
-return.
+ The function will return ``0`` if no objects were in the array or else it
+ will return the result of the last iterator function called. Iteration
+ stops immediately if any call to the iteration function results in a
+ non-zero return.
2. Find an object in an associative array::
@@ -310,14 +310,14 @@ return.
const struct assoc_array_ops *ops,
const void *index_key);
-This walks through the array's internal tree directly to the object
-specified by the index key..
+ This walks through the array's internal tree directly to the object
+ specified by the index key.
-This may be used on an array at the same time as the array is being
-modified, provided the RCU read lock is held.
+ This may be used on an array at the same time as the array is being
+ modified, provided the RCU read lock is held.
-The function will return the object if found (and set ``*_type`` to the object
-type) or will return ``NULL`` if the object was not found.
+ The function will return the object if found (and set ``*_type`` to the
+ object type) or will return ``NULL`` if the object was not found.
Index Key Form
@@ -399,10 +399,11 @@ fixed levels. For example::
In the above example, there are 7 nodes (A-G), each with 16 slots (0-f).
Assuming no other meta data nodes in the tree, the key space is divided
-thusly::
+thusly:
+ =========== ====
KEY PREFIX NODE
- ========== ====
+ =========== ====
137* D
138* E
13[0-69-f]* C
@@ -410,10 +411,12 @@ thusly::
e6* G
e[0-57-f]* F
[02-df]* A
+ =========== ====
So, for instance, keys with the following example index keys will be found in
-the appropriate nodes::
+the appropriate nodes:
+ =============== ======= ====
INDEX KEY PREFIX NODE
=============== ======= ====
13694892892489 13 C
@@ -422,12 +425,13 @@ the appropriate nodes::
138bbb89003093 138 E
1394879524789 12 C
1458952489 1 B
- 9431809de993ba - A
- b4542910809cd - A
+ 9431809de993ba \- A
+ b4542910809cd \- A
e5284310def98 e F
e68428974237 e6 G
e7fffcbd443 e F
- f3842239082 - A
+ f3842239082 \- A
+ =============== ======= ====
To save memory, if a node can hold all the leaves in its portion of keyspace,
then the node will have all those leaves in it and will not have any metadata
@@ -441,8 +445,9 @@ metadata pointer. If the metadata pointer is there, any leaf whose key matches
the metadata key prefix must be in the subtree that the metadata pointer points
to.
-In the above example list of index keys, node A will contain::
+In the above example list of index keys, node A will contain:
+ ==== =============== ==================
SLOT CONTENT INDEX KEY (PREFIX)
==== =============== ==================
1 PTR TO NODE B 1*
@@ -450,11 +455,16 @@ In the above example list of index keys, node A will contain::
any LEAF b4542910809cd
e PTR TO NODE F e*
any LEAF f3842239082
+ ==== =============== ==================
-and node B::
+and node B:
- 3 PTR TO NODE C 13*
- any LEAF 1458952489
+ ==== =============== ==================
+ SLOT CONTENT INDEX KEY (PREFIX)
+ ==== =============== ==================
+ 3 PTR TO NODE C 13*
+ any LEAF 1458952489
+ ==== =============== ==================
Shortcuts
diff --git a/Documentation/core-api/cachetlb.rst b/Documentation/core-api/cachetlb.rst
index 5c0552e78c58..889fc84ccd1b 100644
--- a/Documentation/core-api/cachetlb.rst
+++ b/Documentation/core-api/cachetlb.rst
@@ -88,13 +88,17 @@ changes occur:
This is used primarily during fault processing.
-5) ``void update_mmu_cache(struct vm_area_struct *vma,
- unsigned long address, pte_t *ptep)``
+5) ``void update_mmu_cache_range(struct vm_fault *vmf,
+ struct vm_area_struct *vma, unsigned long address, pte_t *ptep,
+ unsigned int nr)``
- At the end of every page fault, this routine is invoked to
- tell the architecture specific code that a translation
- now exists at virtual address "address" for address space
- "vma->vm_mm", in the software page tables.
+ At the end of every page fault, this routine is invoked to tell
+ the architecture specific code that translations now exists
+ in the software page tables for address space "vma->vm_mm"
+ at virtual address "address" for "nr" consecutive pages.
+
+ This routine is also invoked in various other places which pass
+ a NULL "vmf".
A port may use this information in any way it so chooses.
For example, it could use this event to pre-load TLB
@@ -269,7 +273,7 @@ maps this page at its virtual address.
If D-cache aliasing is not an issue, these two routines may
simply call memcpy/memset directly and do nothing more.
- ``void flush_dcache_page(struct page *page)``
+ ``void flush_dcache_folio(struct folio *folio)``
This routines must be called when:
@@ -277,7 +281,7 @@ maps this page at its virtual address.
and / or in high memory
b) the kernel is about to read from a page cache page and user space
shared/writable mappings of this page potentially exist. Note
- that {get,pin}_user_pages{_fast} already call flush_dcache_page
+ that {get,pin}_user_pages{_fast} already call flush_dcache_folio
on any page found in the user address space and thus driver
code rarely needs to take this into account.
@@ -291,7 +295,7 @@ maps this page at its virtual address.
The phrase "kernel writes to a page cache page" means, specifically,
that the kernel executes store instructions that dirty data in that
- page at the page->virtual mapping of that page. It is important to
+ page at the kernel virtual mapping of that page. It is important to
flush here to handle D-cache aliasing, to make sure these kernel stores
are visible to user space mappings of that page.
@@ -302,21 +306,22 @@ maps this page at its virtual address.
If D-cache aliasing is not an issue, this routine may simply be defined
as a nop on that architecture.
- There is a bit set aside in page->flags (PG_arch_1) as "architecture
+ There is a bit set aside in folio->flags (PG_arch_1) as "architecture
private". The kernel guarantees that, for pagecache pages, it will
clear this bit when such a page first enters the pagecache.
- This allows these interfaces to be implemented much more efficiently.
- It allows one to "defer" (perhaps indefinitely) the actual flush if
- there are currently no user processes mapping this page. See sparc64's
- flush_dcache_page and update_mmu_cache implementations for an example
- of how to go about doing this.
+ This allows these interfaces to be implemented much more
+ efficiently. It allows one to "defer" (perhaps indefinitely) the
+ actual flush if there are currently no user processes mapping this
+ page. See sparc64's flush_dcache_folio and update_mmu_cache_range
+ implementations for an example of how to go about doing this.
- The idea is, first at flush_dcache_page() time, if page_file_mapping()
- returns a mapping, and mapping_mapped on that mapping returns %false,
- just mark the architecture private page flag bit. Later, in
- update_mmu_cache(), a check is made of this flag bit, and if set the
- flush is done and the flag bit is cleared.
+ The idea is, first at flush_dcache_folio() time, if
+ folio_flush_mapping() returns a mapping, and mapping_mapped() on that
+ mapping returns %false, just mark the architecture private page
+ flag bit. Later, in update_mmu_cache_range(), a check is made
+ of this flag bit, and if set the flush is done and the flag bit
+ is cleared.
.. important::
@@ -326,12 +331,6 @@ maps this page at its virtual address.
dirty. Again, see sparc64 for examples of how
to deal with this.
- ``void flush_dcache_folio(struct folio *folio)``
- This function is called under the same circumstances as
- flush_dcache_page(). It allows the architecture to
- optimise for flushing the entire folio of pages instead
- of flushing one page at a time.
-
``void copy_to_user_page(struct vm_area_struct *vma, struct page *page,
unsigned long user_vaddr, void *dst, void *src, int len)``
``void copy_from_user_page(struct vm_area_struct *vma, struct page *page,
@@ -352,7 +351,7 @@ maps this page at its virtual address.
When the kernel needs to access the contents of an anonymous
page, it calls this function (currently only
- get_user_pages()). Note: flush_dcache_page() deliberately
+ get_user_pages()). Note: flush_dcache_folio() deliberately
doesn't work for an anonymous page. The default
implementation is a nop (and should remain so for all coherent
architectures). For incoherent architectures, it should flush
@@ -369,7 +368,7 @@ maps this page at its virtual address.
``void flush_icache_page(struct vm_area_struct *vma, struct page *page)``
All the functionality of flush_icache_page can be implemented in
- flush_dcache_page and update_mmu_cache. In the future, the hope
+ flush_dcache_folio and update_mmu_cache_range. In the future, the hope
is to remove this interface completely.
The final category of APIs is for I/O to deliberately aliased address
diff --git a/Documentation/core-api/cgroup.rst b/Documentation/core-api/cgroup.rst
new file mode 100644
index 000000000000..734ea21e1e17
--- /dev/null
+++ b/Documentation/core-api/cgroup.rst
@@ -0,0 +1,9 @@
+==================
+Cgroup Kernel APIs
+==================
+
+Device Memory Cgroup API (dmemcg)
+=================================
+.. kernel-doc:: kernel/cgroup/dmem.c
+ :export:
+
diff --git a/Documentation/core-api/cleanup.rst b/Documentation/core-api/cleanup.rst
new file mode 100644
index 000000000000..527eb2f8ec6e
--- /dev/null
+++ b/Documentation/core-api/cleanup.rst
@@ -0,0 +1,8 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+===========================
+Scope-based Cleanup Helpers
+===========================
+
+.. kernel-doc:: include/linux/cleanup.h
+ :doc: scope-based cleanup helpers
diff --git a/Documentation/core-api/cpu_hotplug.rst b/Documentation/core-api/cpu_hotplug.rst
index f75778d37488..e1b0eeabbb5e 100644
--- a/Documentation/core-api/cpu_hotplug.rst
+++ b/Documentation/core-api/cpu_hotplug.rst
@@ -40,12 +40,6 @@ Command Line Switches
supplied here is lower than the number of physically available CPUs, then
those CPUs can not be brought online later.
-``additional_cpus=n``
- Use this to limit hotpluggable CPUs. This option sets
- ``cpu_possible_mask = cpu_present_mask + additional_cpus``
-
- This option is limited to the IA64 architecture.
-
``possible_cpus=n``
This option sets ``possible_cpus`` bits in ``cpu_possible_mask``.
@@ -127,17 +121,8 @@ bring CPU4 back online::
$ echo 1 > /sys/devices/system/cpu/cpu4/online
smpboot: Booting Node 0 Processor 4 APIC 0x1
-The CPU is usable again. This should work on all CPUs. CPU0 is often special
-and excluded from CPU hotplug. On X86 the kernel option
-*CONFIG_BOOTPARAM_HOTPLUG_CPU0* has to be enabled in order to be able to
-shutdown CPU0. Alternatively the kernel command option *cpu0_hotplug* can be
-used. Some known dependencies of CPU0:
-
-* Resume from hibernate/suspend. Hibernate/suspend will fail if CPU0 is offline.
-* PIC interrupts. CPU0 can't be removed if a PIC interrupt is detected.
-
-Please let Fenghua Yu <fenghua.yu@intel.com> know if you find any dependencies
-on CPU0.
+The CPU is usable again. This should work on all CPUs, but CPU0 is often special
+and excluded from CPU hotplug.
The CPU hotplug coordination
============================
@@ -404,8 +389,8 @@ multi-instance state the following function is available:
* cpuhp_setup_state_multi(state, name, startup, teardown)
The @state argument is either a statically allocated state or one of the
-constants for dynamically allocated states - CPUHP_PREPARE_DYN,
-CPUHP_ONLINE_DYN - depending on the state section (PREPARE, ONLINE) for
+constants for dynamically allocated states - CPUHP_BP_PREPARE_DYN,
+CPUHP_AP_ONLINE_DYN - depending on the state section (PREPARE, ONLINE) for
which a dynamic state should be allocated.
The @name argument is used for sysfs output and for instrumentation. The
@@ -597,7 +582,7 @@ notifications on online and offline operations::
Setup and teardown a dynamically allocated state in the ONLINE section
for notifications on offline operations::
- state = cpuhp_setup_state(CPUHP_ONLINE_DYN, "subsys:offline", NULL, subsys_cpu_offline);
+ state = cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "subsys:offline", NULL, subsys_cpu_offline);
if (state < 0)
return state;
....
@@ -606,7 +591,7 @@ for notifications on offline operations::
Setup and teardown a dynamically allocated state in the ONLINE section
for notifications on online operations without invoking the callbacks::
- state = cpuhp_setup_state_nocalls(CPUHP_ONLINE_DYN, "subsys:online", subsys_cpu_online, NULL);
+ state = cpuhp_setup_state_nocalls(CPUHP_AP_ONLINE_DYN, "subsys:online", subsys_cpu_online, NULL);
if (state < 0)
return state;
....
@@ -615,7 +600,7 @@ for notifications on online operations without invoking the callbacks::
Setup, use and teardown a dynamically allocated multi-instance state in the
ONLINE section for notifications on online and offline operation::
- state = cpuhp_setup_state_multi(CPUHP_ONLINE_DYN, "subsys:online", subsys_cpu_online, subsys_cpu_offline);
+ state = cpuhp_setup_state_multi(CPUHP_AP_ONLINE_DYN, "subsys:online", subsys_cpu_online, subsys_cpu_offline);
if (state < 0)
return state;
....
@@ -631,7 +616,7 @@ ONLINE section for notifications on online and offline operation::
....
cpuhp_remove_instance(state, &inst2->node);
....
- remove_multi_state(state);
+ cpuhp_remove_multi_state(state);
Testing of hotplug states
@@ -750,6 +735,26 @@ will receive all events. A script like::
can process the event further.
+When changes to the CPUs in the system occur, the sysfs file
+/sys/devices/system/cpu/crash_hotplug contains '1' if the kernel
+updates the kdump capture kernel list of CPUs itself (via elfcorehdr and
+other relevant kexec segment), or '0' if userspace must update the kdump
+capture kernel list of CPUs.
+
+The availability depends on the CONFIG_HOTPLUG_CPU kernel configuration
+option.
+
+To skip userspace processing of CPU hot un/plug events for kdump
+(i.e. the unload-then-reload to obtain a current list of CPUs), this sysfs
+file can be used in a udev rule as follows:
+
+ SUBSYSTEM=="cpu", ATTRS{crash_hotplug}=="1", GOTO="kdump_reload_end"
+
+For a CPU hot un/plug event, if the architecture supports kernel updates
+of the elfcorehdr (which contains the list of CPUs) and other relevant
+kexec segments, then the rule skips the unload-then-reload of the kdump
+capture kernel.
+
Kernel Inline Documentations Reference
======================================
diff --git a/Documentation/core-api/debugging-via-ohci1394.rst b/Documentation/core-api/debugging-via-ohci1394.rst
index 981ad4f89fd3..cb3d3228dfc8 100644
--- a/Documentation/core-api/debugging-via-ohci1394.rst
+++ b/Documentation/core-api/debugging-via-ohci1394.rst
@@ -23,9 +23,9 @@ Retrieving a full system memory dump is also possible over the FireWire,
using data transfer rates in the order of 10MB/s or more.
With most FireWire controllers, memory access is limited to the low 4 GB
-of physical address space. This can be a problem on IA64 machines where
-memory is located mostly above that limit, but it is rarely a problem on
-more common hardware such as x86, x86-64 and PowerPC.
+of physical address space. This can be a problem on machines where memory is
+located mostly above that limit, but it is rarely a problem on more common
+hardware such as x86, x86-64 and PowerPC.
At least LSI FW643e and FW643e2 controllers are known to support access to
physical addresses above 4 GB, but this feature is currently not enabled by
diff --git a/Documentation/core-api/dma-api-howto.rst b/Documentation/core-api/dma-api-howto.rst
index 72f6cdb6be1c..96fce2a9aa90 100644
--- a/Documentation/core-api/dma-api-howto.rst
+++ b/Documentation/core-api/dma-api-howto.rst
@@ -8,7 +8,7 @@ Dynamic DMA mapping Guide
This is a guide to device driver writers on how to use the DMA API
with example pseudo-code. For a concise description of the API, see
-DMA-API.txt.
+Documentation/core-api/dma-api.rst.
CPU and DMA addresses
=====================
@@ -155,7 +155,7 @@ a device with limitations, it needs to be decreased.
Special note about PCI: PCI-X specification requires PCI-X devices to support
64-bit addressing (DAC) for all transactions. And at least one platform (SGI
-SN2) requires 64-bit consistent allocations to operate correctly when the IO
+SN2) requires 64-bit coherent allocations to operate correctly when the IO
bus is in PCI-X mode.
For correct operation, you must set the DMA mask to inform the kernel about
@@ -174,7 +174,7 @@ used instead:
int dma_set_mask(struct device *dev, u64 mask);
- The setup for consistent allocations is performed via a call
+ The setup for coherent allocations is performed via a call
to dma_set_coherent_mask()::
int dma_set_coherent_mask(struct device *dev, u64 mask);
@@ -203,13 +203,33 @@ setting the DMA mask fails. In this manner, if a user of your driver reports
that performance is bad or that the device is not even detected, you can ask
them for the kernel messages to find out exactly why.
-The standard 64-bit addressing device would do something like this::
+The 24-bit addressing device would do something like this::
- if (dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64))) {
+ if (dma_set_mask_and_coherent(dev, DMA_BIT_MASK(24))) {
dev_warn(dev, "mydev: No suitable DMA available\n");
goto ignore_this_device;
}
+The standard 64-bit addressing device would do something like this::
+
+ dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64))
+
+dma_set_mask_and_coherent() never return fail when DMA_BIT_MASK(64). Typical
+error code like::
+
+ /* Wrong code */
+ if (dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64)))
+ dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32))
+
+dma_set_mask_and_coherent() will never return failure when bigger than 32.
+So typical code like::
+
+ /* Recommended code */
+ if (support_64bit)
+ dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64));
+ else
+ dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32));
+
If the device only supports 32-bit addressing for descriptors in the
coherent allocations, but supports full 64-bits for streaming mappings
it would look like this::
@@ -221,7 +241,7 @@ it would look like this::
The coherent mask will always be able to set the same or a smaller mask as
the streaming mask. However for the rare case that a device driver only
-uses consistent allocations, one would have to check the return value from
+uses coherent allocations, one would have to check the return value from
dma_set_coherent_mask().
Finally, if your device can only drive the low 24-bits of
@@ -278,20 +298,20 @@ Types of DMA mappings
There are two types of DMA mappings:
-- Consistent DMA mappings which are usually mapped at driver
+- Coherent DMA mappings which are usually mapped at driver
initialization, unmapped at the end and for which the hardware should
guarantee that the device and the CPU can access the data
in parallel and will see updates made by each other without any
explicit software flushing.
- Think of "consistent" as "synchronous" or "coherent".
+ Think of "coherent" as "synchronous".
- The current default is to return consistent memory in the low 32
+ The current default is to return coherent memory in the low 32
bits of the DMA space. However, for future compatibility you should
- set the consistent mask even if this default is fine for your
+ set the coherent mask even if this default is fine for your
driver.
- Good examples of what to use consistent mappings for are:
+ Good examples of what to use coherent mappings for are:
- Network card DMA ring descriptors.
- SCSI adapter mailbox command data structures.
@@ -300,13 +320,13 @@ There are two types of DMA mappings:
The invariant these examples all require is that any CPU store
to memory is immediately visible to the device, and vice
- versa. Consistent mappings guarantee this.
+ versa. Coherent mappings guarantee this.
.. important::
- Consistent DMA memory does not preclude the usage of
+ Coherent DMA memory does not preclude the usage of
proper memory barriers. The CPU may reorder stores to
- consistent memory just as it may normal memory. Example:
+ coherent memory just as it may normal memory. Example:
if it is important for the device to see the first word
of a descriptor updated before the second, you must do
something like::
@@ -345,10 +365,10 @@ Also, systems with caches that aren't DMA-coherent will work better
when the underlying buffers don't share cache lines with other data.
-Using Consistent DMA mappings
-=============================
+Using Coherent DMA mappings
+===========================
-To allocate and map large (PAGE_SIZE or so) consistent DMA regions,
+To allocate and map large (PAGE_SIZE or so) coherent DMA regions,
you should do::
dma_addr_t dma_handle;
@@ -365,10 +385,10 @@ __get_free_pages() (but takes size instead of a page order). If your
driver needs regions sized smaller than a page, you may prefer using
the dma_pool interface, described below.
-The consistent DMA mapping interfaces, will by default return a DMA address
+The coherent DMA mapping interfaces, will by default return a DMA address
which is 32-bit addressable. Even if the device indicates (via the DMA mask)
-that it may address the upper 32-bits, consistent allocation will only
-return > 32-bit addresses for DMA if the consistent DMA mask has been
+that it may address the upper 32-bits, coherent allocation will only
+return > 32-bit addresses for DMA if the coherent DMA mask has been
explicitly changed via dma_set_coherent_mask(). This is true of the
dma_pool interface as well.
@@ -477,7 +497,7 @@ program address space. Such platforms can and do report errors in the
kernel logs when the DMA controller hardware detects violation of the
permission setting.
-Only streaming mappings specify a direction, consistent mappings
+Only streaming mappings specify a direction, coherent mappings
implicitly have a direction attribute setting of
DMA_BIDIRECTIONAL.
diff --git a/Documentation/core-api/dma-api.rst b/Documentation/core-api/dma-api.rst
index 829f20a193ca..ca75b3541679 100644
--- a/Documentation/core-api/dma-api.rst
+++ b/Documentation/core-api/dma-api.rst
@@ -8,15 +8,15 @@ This document describes the DMA API. For a more gentle introduction
of the API (and actual examples), see Documentation/core-api/dma-api-howto.rst.
This API is split into two pieces. Part I describes the basic API.
-Part II describes extensions for supporting non-consistent memory
+Part II describes extensions for supporting non-coherent memory
machines. Unless you know that your driver absolutely has to support
-non-consistent platforms (this is usually only legacy platforms) you
+non-coherent platforms (this is usually only legacy platforms) you
should only use the API described in part I.
-Part I - dma_API
+Part I - DMA API
----------------
-To get the dma_API, you must #include <linux/dma-mapping.h>. This
+To get the DMA API, you must #include <linux/dma-mapping.h>. This
provides dma_addr_t and the interfaces described below.
A dma_addr_t can hold any valid DMA address for the platform. It can be
@@ -33,13 +33,13 @@ Part Ia - Using large DMA-coherent buffers
dma_alloc_coherent(struct device *dev, size_t size,
dma_addr_t *dma_handle, gfp_t flag)
-Consistent memory is memory for which a write by either the device or
+Coherent memory is memory for which a write by either the device or
the processor can immediately be read by the processor or device
without having to worry about caching effects. (You may however need
to make sure to flush the processor's write buffers before telling
devices to read that memory.)
-This routine allocates a region of <size> bytes of consistent memory.
+This routine allocates a region of <size> bytes of coherent memory.
It returns a pointer to the allocated region (in the processor's virtual
address space) or NULL if the allocation failed.
@@ -48,15 +48,14 @@ It also returns a <dma_handle> which may be cast to an unsigned integer the
same width as the bus and given to the device as the DMA address base of
the region.
-Note: consistent memory can be expensive on some platforms, and the
+Note: coherent memory can be expensive on some platforms, and the
minimum allocation length may be as big as a page, so you should
-consolidate your requests for consistent memory as much as possible.
+consolidate your requests for coherent memory as much as possible.
The simplest way to do that is to use the dma_pool calls (see below).
-The flag parameter (dma_alloc_coherent() only) allows the caller to
-specify the ``GFP_`` flags (see kmalloc()) for the allocation (the
-implementation may choose to ignore flags that affect the location of
-the returned memory, like GFP_DMA).
+The flag parameter allows the caller to specify the ``GFP_`` flags (see
+kmalloc()) for the allocation (the implementation may ignore flags that affect
+the location of the returned memory, like GFP_DMA).
::
@@ -64,19 +63,18 @@ the returned memory, like GFP_DMA).
dma_free_coherent(struct device *dev, size_t size, void *cpu_addr,
dma_addr_t dma_handle)
-Free a region of consistent memory you previously allocated. dev,
-size and dma_handle must all be the same as those passed into
-dma_alloc_coherent(). cpu_addr must be the virtual address returned by
-the dma_alloc_coherent().
+Free a previously allocated region of coherent memory. dev, size and dma_handle
+must all be the same as those passed into dma_alloc_coherent(). cpu_addr must
+be the virtual address returned by dma_alloc_coherent().
-Note that unlike their sibling allocation calls, these routines
-may only be called with IRQs enabled.
+Note that unlike the sibling allocation call, this routine may only be called
+with IRQs enabled.
Part Ib - Using small DMA-coherent buffers
------------------------------------------
-To get this part of the dma_API, you must #include <linux/dmapool.h>
+To get this part of the DMA API, you must #include <linux/dmapool.h>
Many drivers need lots of small DMA-coherent memory regions for DMA
descriptors or I/O buffers. Rather than allocating in units of a page
@@ -85,78 +83,29 @@ much like a struct kmem_cache, except that they use the DMA-coherent allocator,
not __get_free_pages(). Also, they understand common hardware constraints
for alignment, like queue heads needing to be aligned on N-byte boundaries.
+.. kernel-doc:: mm/dmapool.c
+ :export:
-::
-
- struct dma_pool *
- dma_pool_create(const char *name, struct device *dev,
- size_t size, size_t align, size_t alloc);
-
-dma_pool_create() initializes a pool of DMA-coherent buffers
-for use with a given device. It must be called in a context which
-can sleep.
-
-The "name" is for diagnostics (like a struct kmem_cache name); dev and size
-are like what you'd pass to dma_alloc_coherent(). The device's hardware
-alignment requirement for this type of data is "align" (which is expressed
-in bytes, and must be a power of two). If your device has no boundary
-crossing restrictions, pass 0 for alloc; passing 4096 says memory allocated
-from this pool must not cross 4KByte boundaries.
-
-::
-
- void *
- dma_pool_zalloc(struct dma_pool *pool, gfp_t mem_flags,
- dma_addr_t *handle)
-
-Wraps dma_pool_alloc() and also zeroes the returned memory if the
-allocation attempt succeeded.
-
-
-::
-
- void *
- dma_pool_alloc(struct dma_pool *pool, gfp_t gfp_flags,
- dma_addr_t *dma_handle);
-
-This allocates memory from the pool; the returned memory will meet the
-size and alignment requirements specified at creation time. Pass
-GFP_ATOMIC to prevent blocking, or if it's permitted (not
-in_interrupt, not holding SMP locks), pass GFP_KERNEL to allow
-blocking. Like dma_alloc_coherent(), this returns two values: an
-address usable by the CPU, and the DMA address usable by the pool's
-device.
-
-::
-
- void
- dma_pool_free(struct dma_pool *pool, void *vaddr,
- dma_addr_t addr);
-
-This puts memory back into the pool. The pool is what was passed to
-dma_pool_alloc(); the CPU (vaddr) and DMA addresses are what
-were returned when that routine allocated the memory being freed.
-
-::
-
- void
- dma_pool_destroy(struct dma_pool *pool);
-
-dma_pool_destroy() frees the resources of the pool. It must be
-called in a context which can sleep. Make sure you've freed all allocated
-memory back to the pool before you destroy it.
+.. kernel-doc:: include/linux/dmapool.h
Part Ic - DMA addressing limitations
------------------------------------
+DMA mask is a bit mask of the addressable region for the device. In other words,
+if applying the DMA mask (a bitwise AND operation) to the DMA address of a
+memory region does not clear any bits in the address, then the device can
+perform DMA to that memory region.
+
+All the below functions which set a DMA mask may fail if the requested mask
+cannot be used with the device, or if the device is not capable of doing DMA.
+
::
int
dma_set_mask_and_coherent(struct device *dev, u64 mask)
-Checks to see if the mask is possible and updates the device
-streaming and coherent DMA mask parameters if it is.
+Updates both streaming and coherent DMA masks.
Returns: 0 if successful and a negative error if not.
@@ -165,8 +114,7 @@ Returns: 0 if successful and a negative error if not.
int
dma_set_mask(struct device *dev, u64 mask)
-Checks to see if the mask is possible and updates the device
-parameters if it is.
+Updates only the streaming DMA mask.
Returns: 0 if successful and a negative error if not.
@@ -175,8 +123,7 @@ Returns: 0 if successful and a negative error if not.
int
dma_set_coherent_mask(struct device *dev, u64 mask)
-Checks to see if the mask is possible and updates the device
-parameters if it is.
+Updates only the coherent DMA mask.
Returns: 0 if successful and a negative error if not.
@@ -231,12 +178,32 @@ transfer memory ownership. Returns %false if those calls can be skipped.
unsigned long
dma_get_merge_boundary(struct device *dev);
-Returns the DMA merge boundary. If the device cannot merge any the DMA address
+Returns the DMA merge boundary. If the device cannot merge any DMA address
segments, the function returns 0.
Part Id - Streaming DMA mappings
--------------------------------
+Streaming DMA allows to map an existing buffer for DMA transfers and then
+unmap it when finished. Map functions are not guaranteed to succeed, so the
+return value must be checked.
+
+.. note::
+
+ In particular, mapping may fail for memory not addressable by the
+ device, e.g. if it is not within the DMA mask of the device and/or a
+ connecting bus bridge. Streaming DMA functions try to overcome such
+ addressing constraints, either by using an IOMMU (a device which maps
+ I/O DMA addresses to physical memory addresses), or by copying the
+ data to/from a bounce buffer if the kernel is configured with a
+ :doc:`SWIOTLB <swiotlb>`. However, these methods are not always
+ available, and even if they are, they may still fail for a number of
+ reasons.
+
+ In short, a device driver may need to be wary of where buffers are
+ located in physical memory, especially if the DMA mask is less than 32
+ bits.
+
::
dma_addr_t
@@ -246,9 +213,7 @@ Part Id - Streaming DMA mappings
Maps a piece of processor virtual memory so it can be accessed by the
device and returns the DMA address of the memory.
-The direction for both APIs may be converted freely by casting.
-However the dma_API uses a strongly typed enumerator for its
-direction:
+The DMA API uses a strongly typed enumerator for its direction:
======================= =============================================
DMA_NONE no direction (used for debugging)
@@ -259,31 +224,13 @@ DMA_BIDIRECTIONAL direction isn't known
.. note::
- Not all memory regions in a machine can be mapped by this API.
- Further, contiguous kernel virtual space may not be contiguous as
+ Contiguous kernel virtual space may not be contiguous as
physical memory. Since this API does not provide any scatter/gather
capability, it will fail if the user tries to map a non-physically
contiguous piece of memory. For this reason, memory to be mapped by
this API should be obtained from sources which guarantee it to be
physically contiguous (like kmalloc).
- Further, the DMA address of the memory must be within the
- dma_mask of the device (the dma_mask is a bit mask of the
- addressable region for the device, i.e., if the DMA address of
- the memory ANDed with the dma_mask is still equal to the DMA
- address, then the device can perform DMA to the memory). To
- ensure that the memory allocated by kmalloc is within the dma_mask,
- the driver may specify various platform-dependent flags to restrict
- the DMA address range of the allocation (e.g., on x86, GFP_DMA
- guarantees to be within the first 16MB of available DMA addresses,
- as required by ISA devices).
-
- Note also that the above constraints on physical contiguity and
- dma_mask may not apply if the platform has an IOMMU (a device which
- maps an I/O DMA address to a physical memory address). However, to be
- portable, device driver writers may *not* assume that such an IOMMU
- exists.
-
.. warning::
Memory coherency operates at a granularity called the cache
@@ -325,8 +272,7 @@ DMA_BIDIRECTIONAL direction isn't known
enum dma_data_direction direction)
Unmaps the region previously mapped. All the parameters passed in
-must be identical to those passed in (and returned) by the mapping
-API.
+must be identical to those passed to (and returned by) dma_map_single().
::
@@ -376,10 +322,10 @@ action (e.g. reduce current DMA mapping usage or delay and try again later).
dma_map_sg(struct device *dev, struct scatterlist *sg,
int nents, enum dma_data_direction direction)
-Returns: the number of DMA address segments mapped (this may be shorter
-than <nents> passed in if some elements of the scatter/gather list are
-physically or virtually adjacent and an IOMMU maps them with a single
-entry).
+Maps a scatter/gather list for DMA. Returns the number of DMA address segments
+mapped, which may be smaller than <nents> passed in if several consecutive
+sglist entries are merged (e.g. with an IOMMU, or if some adjacent segments
+just happen to be physically contiguous).
Please note that the sg cannot be mapped again if it has been mapped once.
The mapping process is allowed to destroy information in the sg.
@@ -403,9 +349,8 @@ With scatterlists, you use the resulting mapping like this::
where nents is the number of entries in the sglist.
The implementation is free to merge several consecutive sglist entries
-into one (e.g. with an IOMMU, or if several pages just happen to be
-physically contiguous) and returns the actual number of sg entries it
-mapped them to. On failure 0, is returned.
+into one. The returned number is the actual number of sg entries it
+mapped them to. On failure, 0 is returned.
Then you should loop count times (note: this can be less than nents times)
and use sg_dma_address() and sg_dma_len() macros where you previously
@@ -448,7 +393,7 @@ DMA address entries returned.
Synchronise a single contiguous or scatter/gather mapping for the CPU
and device. With the sync_sg API, all the parameters must be the same
-as those passed into the single mapping API. With the sync_single API,
+as those passed into the sg mapping API. With the sync_single API,
you can use dma_handle and size parameters that aren't identical to
those passed into the single mapping API to do a partial sync.
@@ -530,6 +475,77 @@ routines, e.g.:::
....
}
+Part Ie - IOVA-based DMA mappings
+---------------------------------
+
+These APIs allow a very efficient mapping when using an IOMMU. They are an
+optional path that requires extra code and are only recommended for drivers
+where DMA mapping performance, or the space usage for storing the DMA addresses
+matter. All the considerations from the previous section apply here as well.
+
+::
+
+ bool dma_iova_try_alloc(struct device *dev, struct dma_iova_state *state,
+ phys_addr_t phys, size_t size);
+
+Is used to try to allocate IOVA space for mapping operation. If it returns
+false this API can't be used for the given device and the normal streaming
+DMA mapping API should be used. The ``struct dma_iova_state`` is allocated
+by the driver and must be kept around until unmap time.
+
+::
+
+ static inline bool dma_use_iova(struct dma_iova_state *state)
+
+Can be used by the driver to check if the IOVA-based API is used after a
+call to dma_iova_try_alloc. This can be useful in the unmap path.
+
+::
+
+ int dma_iova_link(struct device *dev, struct dma_iova_state *state,
+ phys_addr_t phys, size_t offset, size_t size,
+ enum dma_data_direction dir, unsigned long attrs);
+
+Is used to link ranges to the IOVA previously allocated. The start of all
+but the first call to dma_iova_link for a given state must be aligned
+to the DMA merge boundary returned by ``dma_get_merge_boundary())``, and
+the size of all but the last range must be aligned to the DMA merge boundary
+as well.
+
+::
+
+ int dma_iova_sync(struct device *dev, struct dma_iova_state *state,
+ size_t offset, size_t size);
+
+Must be called to sync the IOMMU page tables for IOVA-range mapped by one or
+more calls to ``dma_iova_link()``.
+
+For drivers that use a one-shot mapping, all ranges can be unmapped and the
+IOVA freed by calling:
+
+::
+
+ void dma_iova_destroy(struct device *dev, struct dma_iova_state *state,
+ size_t mapped_len, enum dma_data_direction dir,
+ unsigned long attrs);
+
+Alternatively drivers can dynamically manage the IOVA space by unmapping
+and mapping individual regions. In that case
+
+::
+
+ void dma_iova_unlink(struct device *dev, struct dma_iova_state *state,
+ size_t offset, size_t size, enum dma_data_direction dir,
+ unsigned long attrs);
+
+is used to unmap a range previously mapped, and
+
+::
+
+ void dma_iova_free(struct device *dev, struct dma_iova_state *state);
+
+is used to free the IOVA space. All regions must have been unmapped using
+``dma_iova_unlink()`` before calling ``dma_iova_free()``.
Part II - Non-coherent DMA allocations
--------------------------------------
@@ -704,19 +720,19 @@ memory or doing partial flushes.
of two for easy alignment.
-Part III - Debug drivers use of the DMA-API
+Part III - Debug drivers use of the DMA API
-------------------------------------------
-The DMA-API as described above has some constraints. DMA addresses must be
+The DMA API as described above has some constraints. DMA addresses must be
released with the corresponding function with the same size for example. With
the advent of hardware IOMMUs it becomes more and more important that drivers
do not violate those constraints. In the worst case such a violation can
result in data corruption up to destroyed filesystems.
-To debug drivers and find bugs in the usage of the DMA-API checking code can
+To debug drivers and find bugs in the usage of the DMA API checking code can
be compiled into the kernel which will tell the developer about those
violations. If your architecture supports it you can select the "Enable
-debugging of DMA-API usage" option in your kernel configuration. Enabling this
+debugging of DMA API usage" option in your kernel configuration. Enabling this
option has a performance impact. Do not enable it in production kernels.
If you boot the resulting kernel will contain code which does some bookkeeping
@@ -745,7 +761,7 @@ example warning message may look like this::
[<ffffffff80235177>] find_busiest_group+0x207/0x8a0
[<ffffffff8064784f>] _spin_lock_irqsave+0x1f/0x50
[<ffffffff803c7ea3>] check_unmap+0x203/0x490
- [<ffffffff803c8259>] debug_dma_unmap_page+0x49/0x50
+ [<ffffffff803c8259>] debug_dma_unmap_phys+0x49/0x50
[<ffffffff80485f26>] nv_tx_done_optimized+0xc6/0x2c0
[<ffffffff80486c13>] nv_nic_irq_optimized+0x73/0x2b0
[<ffffffff8026df84>] handle_IRQ_event+0x34/0x70
@@ -755,7 +771,7 @@ example warning message may look like this::
<EOI> <4>---[ end trace f6435a98e2a38c0e ]---
The driver developer can find the driver and the device including a stacktrace
-of the DMA-API call which caused this warning.
+of the DMA API call which caused this warning.
Per default only the first error will result in a warning message. All other
errors will only silently counted. This limitation exist to prevent the code
@@ -763,7 +779,7 @@ from flooding your kernel log. To support debugging a device driver this can
be disabled via debugfs. See the debugfs interface documentation below for
details.
-The debugfs directory for the DMA-API debugging code is called dma-api/. In
+The debugfs directory for the DMA API debugging code is called dma-api/. In
this directory the following files can currently be found:
=============================== ===============================================
@@ -811,7 +827,7 @@ dma-api/driver_filter You can write a name of a driver into this file
If you have this code compiled into your kernel it will be enabled by default.
If you want to boot without the bookkeeping anyway you can provide
-'dma_debug=off' as a boot parameter. This will disable DMA-API debugging.
+'dma_debug=off' as a boot parameter. This will disable DMA API debugging.
Notice that you can not enable it again at runtime. You have to reboot to do
so.
@@ -839,8 +855,14 @@ that a driver may be leaking mappings.
dma-debug interface debug_dma_mapping_error() to debug drivers that fail
to check DMA mapping errors on addresses returned by dma_map_single() and
dma_map_page() interfaces. This interface clears a flag set by
-debug_dma_map_page() to indicate that dma_mapping_error() has been called by
+debug_dma_map_phys() to indicate that dma_mapping_error() has been called by
the driver. When driver does unmap, debug_dma_unmap() checks the flag and if
this flag is still set, prints warning message that includes call trace that
leads up to the unmap. This interface can be called from dma_mapping_error()
routines to enable DMA mapping error check debugging.
+
+Functions and structures
+========================
+
+.. kernel-doc:: include/linux/scatterlist.h
+.. kernel-doc:: lib/scatterlist.c
diff --git a/Documentation/core-api/dma-attributes.rst b/Documentation/core-api/dma-attributes.rst
index 1887d92e8e92..0bdc2be65e57 100644
--- a/Documentation/core-api/dma-attributes.rst
+++ b/Documentation/core-api/dma-attributes.rst
@@ -130,3 +130,21 @@ accesses to DMA buffers in both privileged "supervisor" and unprivileged
subsystem that the buffer is fully accessible at the elevated privilege
level (and ideally inaccessible or at least read-only at the
lesser-privileged levels).
+
+DMA_ATTR_MMIO
+-------------
+
+This attribute indicates the physical address is not normal system
+memory. It may not be used with kmap*()/phys_to_virt()/phys_to_page()
+functions, it may not be cacheable, and access using CPU load/store
+instructions may not be allowed.
+
+Usually this will be used to describe MMIO addresses, or other non-cacheable
+register addresses. When DMA mapping this sort of address we call
+the operation Peer to Peer as a one device is DMA'ing to another device.
+For PCI devices the p2pdma APIs must be used to determine if
+DMA_ATTR_MMIO is appropriate.
+
+For architectures that require cache flushing for DMA coherence
+DMA_ATTR_MMIO will not perform any cache flushing. The address
+provided must never be mapped cacheable into the CPU.
diff --git a/Documentation/core-api/entry.rst b/Documentation/core-api/entry.rst
index e12f22ab33c7..71d8eedc0549 100644
--- a/Documentation/core-api/entry.rst
+++ b/Documentation/core-api/entry.rst
@@ -18,7 +18,7 @@ exceptions`_, `NMI and NMI-like exceptions`_.
Non-instrumentable code - noinstr
---------------------------------
-Most instrumentation facilities depend on RCU, so intrumentation is prohibited
+Most instrumentation facilities depend on RCU, so instrumentation is prohibited
for entry code before RCU starts watching and exit code after RCU stops
watching. In addition, many architectures must save and restore register state,
which means that (for example) a breakpoint in the breakpoint entry code would
@@ -105,7 +105,7 @@ has to do extra work between the various steps. In such cases it has to
ensure that enter_from_user_mode() is called first on entry and
exit_to_user_mode() is called last on exit.
-Do not nest syscalls. Nested systcalls will cause RCU and/or context tracking
+Do not nest syscalls. Nested syscalls will cause RCU and/or context tracking
to print a warning.
KVM
@@ -115,8 +115,8 @@ Entering or exiting guest mode is very similar to syscalls. From the host
kernel point of view the CPU goes off into user space when entering the
guest and returns to the kernel on exit.
-kvm_guest_enter_irqoff() is a KVM-specific variant of exit_to_user_mode()
-and kvm_guest_exit_irqoff() is the KVM variant of enter_from_user_mode().
+guest_state_enter_irqoff() is a KVM-specific variant of exit_to_user_mode()
+and guest_state_exit_irqoff() is the KVM variant of enter_from_user_mode().
The state operations have the same ordering.
Task work handling is done separately for guest at the boundary of the
diff --git a/Documentation/core-api/floating-point.rst b/Documentation/core-api/floating-point.rst
new file mode 100644
index 000000000000..a8d0d4b05052
--- /dev/null
+++ b/Documentation/core-api/floating-point.rst
@@ -0,0 +1,78 @@
+.. SPDX-License-Identifier: GPL-2.0+
+
+Floating-point API
+==================
+
+Kernel code is normally prohibited from using floating-point (FP) registers or
+instructions, including the C float and double data types. This rule reduces
+system call overhead, because the kernel does not need to save and restore the
+userspace floating-point register state.
+
+However, occasionally drivers or library functions may need to include FP code.
+This is supported by isolating the functions containing FP code to a separate
+translation unit (a separate source file), and saving/restoring the FP register
+state around calls to those functions. This creates "critical sections" of
+floating-point usage.
+
+The reason for this isolation is to prevent the compiler from generating code
+touching the FP registers outside these critical sections. Compilers sometimes
+use FP registers to optimize inlined ``memcpy`` or variable assignment, as
+floating-point registers may be wider than general-purpose registers.
+
+Usability of floating-point code within the kernel is architecture-specific.
+Additionally, because a single kernel may be configured to support platforms
+both with and without a floating-point unit, FPU availability must be checked
+both at build time and at run time.
+
+Several architectures implement the generic kernel floating-point API from
+``linux/fpu.h``, as described below. Some other architectures implement their
+own unique APIs, which are documented separately.
+
+Build-time API
+--------------
+
+Floating-point code may be built if the option ``ARCH_HAS_KERNEL_FPU_SUPPORT``
+is enabled. For C code, such code must be placed in a separate file, and that
+file must have its compilation flags adjusted using the following pattern::
+
+ CFLAGS_foo.o += $(CC_FLAGS_FPU)
+ CFLAGS_REMOVE_foo.o += $(CC_FLAGS_NO_FPU)
+
+Architectures are expected to define one or both of these variables in their
+top-level Makefile as needed. For example::
+
+ CC_FLAGS_FPU := -mhard-float
+
+or::
+
+ CC_FLAGS_NO_FPU := -msoft-float
+
+Normal kernel code is assumed to use the equivalent of ``CC_FLAGS_NO_FPU``.
+
+Runtime API
+-----------
+
+The runtime API is provided in ``linux/fpu.h``. This header cannot be included
+from files implementing FP code (those with their compilation flags adjusted as
+above). Instead, it must be included when defining the FP critical sections.
+
+.. c:function:: bool kernel_fpu_available( void )
+
+ This function reports if floating-point code can be used on this CPU or
+ platform. The value returned by this function is not expected to change
+ at runtime, so it only needs to be called once, not before every
+ critical section.
+
+.. c:function:: void kernel_fpu_begin( void )
+ void kernel_fpu_end( void )
+
+ These functions create a floating-point critical section. It is only
+ valid to call ``kernel_fpu_begin()`` after a previous call to
+ ``kernel_fpu_available()`` returned ``true``. These functions are only
+ guaranteed to be callable from (preemptible or non-preemptible) process
+ context.
+
+ Preemption may be disabled inside critical sections, so their size
+ should be minimized. They are *not* required to be reentrant. If the
+ caller expects to nest critical sections, it must implement its own
+ reference counting.
diff --git a/Documentation/core-api/folio_queue.rst b/Documentation/core-api/folio_queue.rst
new file mode 100644
index 000000000000..b7628896d2b6
--- /dev/null
+++ b/Documentation/core-api/folio_queue.rst
@@ -0,0 +1,209 @@
+.. SPDX-License-Identifier: GPL-2.0+
+
+===========
+Folio Queue
+===========
+
+:Author: David Howells <dhowells@redhat.com>
+
+.. Contents:
+
+ * Overview
+ * Initialisation
+ * Adding and removing folios
+ * Querying information about a folio
+ * Querying information about a folio_queue
+ * Folio queue iteration
+ * Folio marks
+ * Lockless simultaneous production/consumption issues
+
+
+Overview
+========
+
+The folio_queue struct forms a single segment in a segmented list of folios
+that can be used to form an I/O buffer. As such, the list can be iterated over
+using the ITER_FOLIOQ iov_iter type.
+
+The publicly accessible members of the structure are::
+
+ struct folio_queue {
+ struct folio_queue *next;
+ struct folio_queue *prev;
+ ...
+ };
+
+A pair of pointers are provided, ``next`` and ``prev``, that point to the
+segments on either side of the segment being accessed. Whilst this is a
+doubly-linked list, it is intentionally not a circular list; the outward
+sibling pointers in terminal segments should be NULL.
+
+Each segment in the list also stores:
+
+ * an ordered sequence of folio pointers,
+ * the size of each folio and
+ * three 1-bit marks per folio,
+
+but these should not be accessed directly as the underlying data structure may
+change, but rather the access functions outlined below should be used.
+
+The facility can be made accessible by::
+
+ #include <linux/folio_queue.h>
+
+and to use the iterator::
+
+ #include <linux/uio.h>
+
+
+Initialisation
+==============
+
+A segment should be initialised by calling::
+
+ void folioq_init(struct folio_queue *folioq);
+
+with a pointer to the segment to be initialised. Note that this will not
+necessarily initialise all the folio pointers, so care must be taken to check
+the number of folios added.
+
+
+Adding and removing folios
+==========================
+
+Folios can be set in the next unused slot in a segment struct by calling one
+of::
+
+ unsigned int folioq_append(struct folio_queue *folioq,
+ struct folio *folio);
+
+ unsigned int folioq_append_mark(struct folio_queue *folioq,
+ struct folio *folio);
+
+Both functions update the stored folio count, store the folio and note its
+size. The second function also sets the first mark for the folio added. Both
+functions return the number of the slot used. [!] Note that no attempt is made
+to check that the capacity wasn't overrun and the list will not be extended
+automatically.
+
+A folio can be excised by calling::
+
+ void folioq_clear(struct folio_queue *folioq, unsigned int slot);
+
+This clears the slot in the array and also clears all the marks for that folio,
+but doesn't change the folio count - so future accesses of that slot must check
+if the slot is occupied.
+
+
+Querying information about a folio
+==================================
+
+Information about the folio in a particular slot may be queried by the
+following function::
+
+ struct folio *folioq_folio(const struct folio_queue *folioq,
+ unsigned int slot);
+
+If a folio has not yet been set in that slot, this may yield an undefined
+pointer. The size of the folio in a slot may be queried with either of::
+
+ unsigned int folioq_folio_order(const struct folio_queue *folioq,
+ unsigned int slot);
+
+ size_t folioq_folio_size(const struct folio_queue *folioq,
+ unsigned int slot);
+
+The first function returns the size as an order and the second as a number of
+bytes.
+
+
+Querying information about a folio_queue
+========================================
+
+Information may be retrieved about a particular segment with the following
+functions::
+
+ unsigned int folioq_nr_slots(const struct folio_queue *folioq);
+
+ unsigned int folioq_count(struct folio_queue *folioq);
+
+ bool folioq_full(struct folio_queue *folioq);
+
+The first function returns the maximum capacity of a segment. It must not be
+assumed that this won't vary between segments. The second returns the number
+of folios added to a segments and the third is a shorthand to indicate if the
+segment has been filled to capacity.
+
+Not that the count and fullness are not affected by clearing folios from the
+segment. These are more about indicating how many slots in the array have been
+initialised, and it assumed that slots won't get reused, but rather the segment
+will get discarded as the queue is consumed.
+
+
+Folio marks
+===========
+
+Folios within a queue can also have marks assigned to them. These marks can be
+used to note information such as if a folio needs folio_put() calling upon it.
+There are three marks available to be set for each folio.
+
+The marks can be set by::
+
+ void folioq_mark(struct folio_queue *folioq, unsigned int slot);
+ void folioq_mark2(struct folio_queue *folioq, unsigned int slot);
+
+Cleared by::
+
+ void folioq_unmark(struct folio_queue *folioq, unsigned int slot);
+ void folioq_unmark2(struct folio_queue *folioq, unsigned int slot);
+
+And the marks can be queried by::
+
+ bool folioq_is_marked(const struct folio_queue *folioq, unsigned int slot);
+ bool folioq_is_marked2(const struct folio_queue *folioq, unsigned int slot);
+
+The marks can be used for any purpose and are not interpreted by this API.
+
+
+Folio queue iteration
+=====================
+
+A list of segments may be iterated over using the I/O iterator facility using
+an ``iov_iter`` iterator of ``ITER_FOLIOQ`` type. The iterator may be
+initialised with::
+
+ void iov_iter_folio_queue(struct iov_iter *i, unsigned int direction,
+ const struct folio_queue *folioq,
+ unsigned int first_slot, unsigned int offset,
+ size_t count);
+
+This may be told to start at a particular segment, slot and offset within a
+queue. The iov iterator functions will follow the next pointers when advancing
+and prev pointers when reverting when needed.
+
+
+Lockless simultaneous production/consumption issues
+===================================================
+
+If properly managed, the list can be extended by the producer at the head end
+and shortened by the consumer at the tail end simultaneously without the need
+to take locks. The ITER_FOLIOQ iterator inserts appropriate barriers to aid
+with this.
+
+Care must be taken when simultaneously producing and consuming a list. If the
+last segment is reached and the folios it refers to are entirely consumed by
+the IOV iterators, an iov_iter struct will be left pointing to the last segment
+with a slot number equal to the capacity of that segment. The iterator will
+try to continue on from this if there's another segment available when it is
+used again, but care must be taken lest the segment got removed and freed by
+the consumer before the iterator was advanced.
+
+It is recommended that the queue always contain at least one segment, even if
+that segment has never been filled or is entirely spent. This prevents the
+head and tail pointers from collapsing.
+
+
+API Function Reference
+======================
+
+.. kernel-doc:: include/linux/folio_queue.h
diff --git a/Documentation/core-api/genericirq.rst b/Documentation/core-api/genericirq.rst
index f959c9b53f61..582bde9bf5a9 100644
--- a/Documentation/core-api/genericirq.rst
+++ b/Documentation/core-api/genericirq.rst
@@ -210,7 +210,7 @@ implemented (simplified excerpt)::
}
}
- noop(struct irq_data *data))
+ noop(struct irq_data *data)
{
}
@@ -264,7 +264,7 @@ The following control flow is implemented (simplified excerpt)::
desc->irq_data.chip->irq_unmask();
desc->status &= ~pending;
handle_irq_event(desc->action);
- } while (status & pending);
+ } while (desc->status & pending);
desc->status &= ~running;
diff --git a/Documentation/core-api/gfp_mask-from-fs-io.rst b/Documentation/core-api/gfp_mask-from-fs-io.rst
index e7c32a8de126..858b2fbcb36c 100644
--- a/Documentation/core-api/gfp_mask-from-fs-io.rst
+++ b/Documentation/core-api/gfp_mask-from-fs-io.rst
@@ -55,14 +55,16 @@ scope.
What about __vmalloc(GFP_NOFS)
==============================
-vmalloc doesn't support GFP_NOFS semantic because there are hardcoded
-GFP_KERNEL allocations deep inside the allocator which are quite non-trivial
-to fix up. That means that calling ``vmalloc`` with GFP_NOFS/GFP_NOIO is
-almost always a bug. The good news is that the NOFS/NOIO semantic can be
-achieved by the scope API.
+Since v5.17, and specifically after the commit 451769ebb7e79 ("mm/vmalloc:
+alloc GFP_NO{FS,IO} for vmalloc"), GFP_NOFS/GFP_NOIO are now supported in
+``[k]vmalloc`` by implicitly using scope API.
+
+In earlier kernels ``vmalloc`` didn't support GFP_NOFS semantic because there
+were hardcoded GFP_KERNEL allocations deep inside the allocator. That means
+that calling ``vmalloc`` with GFP_NOFS/GFP_NOIO was almost always a bug.
In the ideal world, upper layers should already mark dangerous contexts
-and so no special care is required and vmalloc should be called without
-any problems. Sometimes if the context is not really clear or there are
-layering violations then the recommended way around that is to wrap ``vmalloc``
-by the scope API with a comment explaining the problem.
+and so no special care is required and ``vmalloc`` should be called without any
+problems. Sometimes if the context is not really clear or there are layering
+violations then the recommended way around that (on pre-v5.17 kernels) is to
+wrap ``vmalloc`` by the scope API with a comment explaining the problem.
diff --git a/Documentation/core-api/index.rst b/Documentation/core-api/index.rst
index 7a3a08d81f11..5eb0fbbbc323 100644
--- a/Documentation/core-api/index.rst
+++ b/Documentation/core-api/index.rst
@@ -24,6 +24,7 @@ it.
printk-index
symbol-namespaces
asm-annotations
+ real-time/index
Data structures and low-level utilities
=======================================
@@ -35,7 +36,9 @@ Library functionality that is used throughout the kernel.
kobject
kref
+ cleanup
assoc_array
+ folio_queue
xarray
maple_tree
idr
@@ -48,6 +51,11 @@ Library functionality that is used throughout the kernel.
errseq
wrappers/atomic_t
wrappers/atomic_bitops
+ floating-point
+ union_find
+ min_heap
+ parser
+ list
Low level entry and exit
========================
@@ -102,11 +110,14 @@ more memory-management documentation in Documentation/mm/index.rst.
dma-api-howto
dma-attributes
dma-isa-lpc
+ swiotlb
mm-api
+ cgroup
genalloc
pin_user_pages
boot-time-mm
gfp_mask-from-fs-io
+ kho/index
Interfaces for kernel debugging
===============================
@@ -127,6 +138,7 @@ Documents that don't fit elsewhere or which have yet to be categorized.
:maxdepth: 1
librs
+ liveupdate
netlink
.. only:: subproject and html
diff --git a/Documentation/core-api/irq/concepts.rst b/Documentation/core-api/irq/concepts.rst
index 4273806a606b..7c4564f3cbdf 100644
--- a/Documentation/core-api/irq/concepts.rst
+++ b/Documentation/core-api/irq/concepts.rst
@@ -2,23 +2,24 @@
What is an IRQ?
===============
-An IRQ is an interrupt request from a device.
-Currently they can come in over a pin, or over a packet.
-Several devices may be connected to the same pin thus
-sharing an IRQ.
+An IRQ is an interrupt request from a device. Currently, they can come
+in over a pin, or over a packet. Several devices may be connected to
+the same pin thus sharing an IRQ. Such as on legacy PCI bus: All devices
+typically share 4 lanes/pins. Note that each device can request an
+interrupt on each of the lanes.
An IRQ number is a kernel identifier used to talk about a hardware
-interrupt source. Typically this is an index into the global irq_desc
-array, but except for what linux/interrupt.h implements the details
-are architecture specific.
+interrupt source. Typically, this is an index into the global irq_desc
+array or sparse_irqs tree. But except for what linux/interrupt.h
+implements, the details are architecture specific.
An IRQ number is an enumeration of the possible interrupt sources on a
-machine. Typically what is enumerated is the number of input pins on
-all of the interrupt controller in the system. In the case of ISA
-what is enumerated are the 16 input pins on the two i8259 interrupt
-controllers.
+machine. Typically, what is enumerated is the number of input pins on
+all of the interrupt controllers in the system. In the case of ISA,
+what is enumerated are the 8 input pins on each of the two i8259
+interrupt controllers.
Architectures can assign additional meaning to the IRQ numbers, and
-are encouraged to in the case where there is any manual configuration
-of the hardware involved. The ISA IRQs are a classic example of
+are encouraged to in the case where there is any manual configuration
+of the hardware involved. The ISA IRQs are a classic example of
assigning this kind of additional meaning.
diff --git a/Documentation/core-api/irq/irq-affinity.rst b/Documentation/core-api/irq/irq-affinity.rst
index 29da5000836a..9cb460cf60b6 100644
--- a/Documentation/core-api/irq/irq-affinity.rst
+++ b/Documentation/core-api/irq/irq-affinity.rst
@@ -9,9 +9,9 @@ ChangeLog:
/proc/irq/IRQ#/smp_affinity and /proc/irq/IRQ#/smp_affinity_list specify
which target CPUs are permitted for a given IRQ source. It's a bitmask
-(smp_affinity) or cpu list (smp_affinity_list) of allowed CPUs. It's not
+(smp_affinity) or CPU list (smp_affinity_list) of allowed CPUs. It's not
allowed to turn off all CPUs, and if an IRQ controller does not support
-IRQ affinity then the value will not change from the default of all cpus.
+IRQ affinity then the value will not change from the default of all CPUs.
/proc/irq/default_smp_affinity specifies default affinity mask that applies
to all non-active IRQs. Once IRQ is allocated/activated its affinity bitmask
@@ -60,7 +60,7 @@ Now lets restrict that IRQ to CPU(4-7).
This time around IRQ44 was delivered only to the last four processors.
i.e counters for the CPU0-3 did not change.
-Here is an example of limiting that same irq (44) to cpus 1024 to 1031::
+Here is an example of limiting that same IRQ (44) to CPUs 1024 to 1031::
[root@moon 44]# echo 1024-1031 > smp_affinity_list
[root@moon 44]# cat smp_affinity_list
diff --git a/Documentation/core-api/irq/irq-domain.rst b/Documentation/core-api/irq/irq-domain.rst
index f88a6ee67a35..68eb2612e8a4 100644
--- a/Documentation/core-api/irq/irq-domain.rst
+++ b/Documentation/core-api/irq/irq-domain.rst
@@ -1,75 +1,91 @@
===============================================
-The irq_domain interrupt number mapping library
+The irq_domain Interrupt Number Mapping Library
===============================================
The current design of the Linux kernel uses a single large number
-space where each separate IRQ source is assigned a different number.
-This is simple when there is only one interrupt controller, but in
-systems with multiple interrupt controllers the kernel must ensure
+space where each separate IRQ source is assigned a unique number.
+This is simple when there is only one interrupt controller. But in
+systems with multiple interrupt controllers, the kernel must ensure
that each one gets assigned non-overlapping allocations of Linux
IRQ numbers.
The number of interrupt controllers registered as unique irqchips
-show a rising tendency: for example subdrivers of different kinds
+shows a rising tendency. For example, subdrivers of different kinds
such as GPIO controllers avoid reimplementing identical callback
mechanisms as the IRQ core system by modelling their interrupt
-handlers as irqchips, i.e. in effect cascading interrupt controllers.
+handlers as irqchips. I.e. in effect cascading interrupt controllers.
-Here the interrupt number loose all kind of correspondence to
-hardware interrupt numbers: whereas in the past, IRQ numbers could
-be chosen so they matched the hardware IRQ line into the root
-interrupt controller (i.e. the component actually fireing the
-interrupt line to the CPU) nowadays this number is just a number.
+So in the past, IRQ numbers could be chosen so that they match the
+hardware IRQ line into the root interrupt controller (i.e. the
+component actually firing the interrupt line to the CPU). Nowadays,
+this number is just a number and the number has no
+relationship to hardware interrupt numbers.
-For this reason we need a mechanism to separate controller-local
-interrupt numbers, called hardware irq's, from Linux IRQ numbers.
+For this reason, we need a mechanism to separate controller-local
+interrupt numbers, called hardware IRQs, from Linux IRQ numbers.
The irq_alloc_desc*() and irq_free_desc*() APIs provide allocation of
-irq numbers, but they don't provide any support for reverse mapping of
+IRQ numbers, but they don't provide any support for reverse mapping of
the controller-local IRQ (hwirq) number into the Linux IRQ number
space.
-The irq_domain library adds mapping between hwirq and IRQ numbers on
-top of the irq_alloc_desc*() API. An irq_domain to manage mapping is
-preferred over interrupt controller drivers open coding their own
+The irq_domain library adds a mapping between hwirq and IRQ numbers on
+top of the irq_alloc_desc*() API. An irq_domain to manage the mapping
+is preferred over interrupt controller drivers open coding their own
reverse mapping scheme.
-irq_domain also implements translation from an abstract irq_fwspec
-structure to hwirq numbers (Device Tree and ACPI GSI so far), and can
-be easily extended to support other IRQ topology data sources.
+irq_domain also implements a translation from an abstract struct
+irq_fwspec to hwirq numbers (Device Tree, non-DT firmware node, ACPI
+GSI, and software node so far), and can be easily extended to support
+other IRQ topology data sources. The implementation is performed
+without any extra platform support code.
-irq_domain usage
+irq_domain Usage
================
-
-An interrupt controller driver creates and registers an irq_domain by
-calling one of the irq_domain_add_*() or irq_domain_create_*() functions
-(each mapping method has a different allocator function, more on that later).
-The function will return a pointer to the irq_domain on success. The caller
-must provide the allocator function with an irq_domain_ops structure.
+struct irq_domain could be defined as an irq domain controller. That
+is, it handles the mapping between hardware and virtual interrupt
+numbers for a given interrupt domain. The domain structure is
+generally created by the PIC code for a given PIC instance (though a
+domain can cover more than one PIC if they have a flat number model).
+It is the domain callbacks that are responsible for setting the
+irq_chip on a given irq_desc after it has been mapped.
+
+The host code and data structures use a fwnode_handle pointer to
+identify the domain. In some cases, and in order to preserve source
+code compatibility, this fwnode pointer is "upgraded" to a DT
+device_node. For those firmware infrastructures that do not provide a
+unique identifier for an interrupt controller, the irq_domain code
+offers a fwnode allocator.
+
+An interrupt controller driver creates and registers a struct irq_domain
+by calling one of the irq_domain_create_*() functions (each mapping
+method has a different allocator function, more on that later). The
+function will return a pointer to the struct irq_domain on success. The
+caller must provide the allocator function with a struct irq_domain_ops
+pointer.
In most cases, the irq_domain will begin empty without any mappings
between hwirq and IRQ numbers. Mappings are added to the irq_domain
by calling irq_create_mapping() which accepts the irq_domain and a
-hwirq number as arguments. If a mapping for the hwirq doesn't already
-exist then it will allocate a new Linux irq_desc, associate it with
-the hwirq, and call the .map() callback so the driver can perform any
-required hardware setup.
+hwirq number as arguments. If a mapping for the hwirq doesn't already
+exist, irq_create_mapping() allocates a new Linux irq_desc, associates
+it with the hwirq, and calls the :c:member:`irq_domain_ops.map()`
+callback. In there, the driver can perform any required hardware
+setup.
Once a mapping has been established, it can be retrieved or used via a
variety of methods:
- irq_resolve_mapping() returns a pointer to the irq_desc structure
- for a given domain and hwirq number, and NULL if there was no
+ for a given domain and hwirq number, or NULL if there was no
mapping.
- irq_find_mapping() returns a Linux IRQ number for a given domain and
- hwirq number, and 0 if there was no mapping
-- irq_linear_revmap() is now identical to irq_find_mapping(), and is
- deprecated
+ hwirq number, or 0 if there was no mapping
- generic_handle_domain_irq() handles an interrupt described by a
domain and a hwirq number
-Note that irq domain lookups must happen in contexts that are
-compatible with a RCU read-side critical section.
+Note that irq_domain lookups must happen in contexts that are
+compatible with an RCU read-side critical section.
The irq_create_mapping() function must be called *at least once*
before any call to irq_find_mapping(), lest the descriptor will not
@@ -77,13 +93,14 @@ be allocated.
If the driver has the Linux IRQ number or the irq_data pointer, and
needs to know the associated hwirq number (such as in the irq_chip
-callbacks) then it can be directly obtained from irq_data->hwirq.
+callbacks) then it can be directly obtained from
+:c:member:`irq_data.hwirq`.
-Types of irq_domain mappings
+Types of irq_domain Mappings
============================
There are several mechanisms available for reverse mapping from hwirq
-to Linux irq, and each mechanism uses a different allocation function.
+to Linux IRQ, and each mechanism uses a different allocation function.
Which reverse map type should be used depends on the use case. Each
of the reverse map types are described below:
@@ -92,48 +109,36 @@ Linear
::
- irq_domain_add_linear()
irq_domain_create_linear()
-The linear reverse map maintains a fixed size table indexed by the
+The linear reverse map maintains a fixed-size table indexed by the
hwirq number. When a hwirq is mapped, an irq_desc is allocated for
the hwirq, and the IRQ number is stored in the table.
The Linear map is a good choice when the maximum number of hwirqs is
fixed and a relatively small number (~ < 256). The advantages of this
-map are fixed time lookup for IRQ numbers, and irq_descs are only
+map are fixed-time lookup for IRQ numbers, and irq_descs are only
allocated for in-use IRQs. The disadvantage is that the table must be
as large as the largest possible hwirq number.
-irq_domain_add_linear() and irq_domain_create_linear() are functionally
-equivalent, except for the first argument is different - the former
-accepts an Open Firmware specific 'struct device_node', while the latter
-accepts a more general abstraction 'struct fwnode_handle'.
-
-The majority of drivers should use the linear map.
+The majority of drivers should use the Linear map.
Tree
----
::
- irq_domain_add_tree()
irq_domain_create_tree()
The irq_domain maintains a radix tree map from hwirq numbers to Linux
IRQs. When an hwirq is mapped, an irq_desc is allocated and the
hwirq is used as the lookup key for the radix tree.
-The tree map is a good choice if the hwirq number can be very large
+The Tree map is a good choice if the hwirq number can be very large
since it doesn't need to allocate a table as large as the largest
hwirq number. The disadvantage is that hwirq to IRQ number lookup is
dependent on how many entries are in the table.
-irq_domain_add_tree() and irq_domain_create_tree() are functionally
-equivalent, except for the first argument is different - the former
-accepts an Open Firmware specific 'struct device_node', while the latter
-accepts a more general abstraction 'struct fwnode_handle'.
-
Very few drivers should need this mapping.
No Map
@@ -141,7 +146,7 @@ No Map
::
- irq_domain_add_nomap()
+ irq_domain_create_nomap()
The No Map mapping is to be used when the hwirq number is
programmable in the hardware. In this case it is best to program the
@@ -159,17 +164,15 @@ Legacy
::
- irq_domain_add_simple()
- irq_domain_add_legacy()
irq_domain_create_simple()
irq_domain_create_legacy()
The Legacy mapping is a special case for drivers that already have a
range of irq_descs allocated for the hwirqs. It is used when the
-driver cannot be immediately converted to use the linear mapping. For
+driver cannot be immediately converted to use the Linear mapping. For
example, many embedded system board support files use a set of #defines
for IRQ numbers that are passed to struct device registrations. In that
-case the Linux IRQ numbers cannot be dynamically assigned and the legacy
+case the Linux IRQ numbers cannot be dynamically assigned and the Legacy
mapping should be used.
As the name implies, the \*_legacy() functions are deprecated and only
@@ -177,25 +180,25 @@ exist to ease the support of ancient platforms. No new users should be
added. Same goes for the \*_simple() functions when their use results
in the legacy behaviour.
-The legacy map assumes a contiguous range of IRQ numbers has already
+The Legacy map assumes a contiguous range of IRQ numbers has already
been allocated for the controller and that the IRQ number can be
calculated by adding a fixed offset to the hwirq number, and
visa-versa. The disadvantage is that it requires the interrupt
controller to manage IRQ allocations and it requires an irq_desc to be
allocated for every hwirq, even if it is unused.
-The legacy map should only be used if fixed IRQ mappings must be
-supported. For example, ISA controllers would use the legacy map for
+The Legacy map should only be used if fixed IRQ mappings must be
+supported. For example, ISA controllers would use the Legacy map for
mapping Linux IRQs 0-15 so that existing ISA drivers get the correct IRQ
numbers.
-Most users of legacy mappings should use irq_domain_add_simple() or
-irq_domain_create_simple() which will use a legacy domain only if an IRQ range
-is supplied by the system and will otherwise use a linear domain mapping.
-The semantics of this call are such that if an IRQ range is specified then
-descriptors will be allocated on-the-fly for it, and if no range is
-specified it will fall through to irq_domain_add_linear() or
-irq_domain_create_linear() which means *no* irq descriptors will be allocated.
+Most users of legacy mappings should use irq_domain_create_simple()
+which will use a legacy domain only if an IRQ range is supplied by the
+system and will otherwise use a linear domain mapping. The semantics of
+this call are such that if an IRQ range is specified then descriptors
+will be allocated on-the-fly for it, and if no range is specified it
+will fall through to irq_domain_create_linear() which means *no* IRQ
+descriptors will be allocated.
A typical use case for simple domains is where an irqchip provider
is supporting both dynamic and static IRQ assignments.
@@ -206,18 +209,12 @@ that the driver using the simple domain call irq_create_mapping()
before any irq_find_mapping() since the latter will actually work
for the static IRQ assignment case.
-irq_domain_add_simple() and irq_domain_create_simple() as well as
-irq_domain_add_legacy() and irq_domain_create_legacy() are functionally
-equivalent, except for the first argument is different - the former
-accepts an Open Firmware specific 'struct device_node', while the latter
-accepts a more general abstraction 'struct fwnode_handle'.
-
-Hierarchy IRQ domain
+Hierarchy IRQ Domain
--------------------
On some architectures, there may be multiple interrupt controllers
involved in delivering an interrupt from the device to the target CPU.
-Let's look at a typical interrupt delivering path on x86 platforms::
+Let's look at a typical interrupt delivery path on x86 platforms::
Device --> IOAPIC -> Interrupt remapping Controller -> Local APIC -> CPU
@@ -230,8 +227,8 @@ There are three interrupt controllers involved:
To support such a hardware topology and make software architecture match
hardware architecture, an irq_domain data structure is built for each
interrupt controller and those irq_domains are organized into hierarchy.
-When building irq_domain hierarchy, the irq_domain near to the device is
-child and the irq_domain near to CPU is parent. So a hierarchy structure
+When building irq_domain hierarchy, the irq_domain nearest the device is
+child and the irq_domain nearest the CPU is parent. So a hierarchy structure
as below will be built for the example above::
CPU Vector irq_domain (root irq_domain to manage CPU vectors)
@@ -253,20 +250,40 @@ There are four major interfaces to use hierarchy irq_domain:
4) irq_domain_deactivate_irq(): deactivate interrupt controller hardware
to stop delivering the interrupt.
-Following changes are needed to support hierarchy irq_domain:
+The following is needed to support hierarchy irq_domain:
-1) a new field 'parent' is added to struct irq_domain; it's used to
+1) The :c:member:`parent` field in struct irq_domain is used to
maintain irq_domain hierarchy information.
-2) a new field 'parent_data' is added to struct irq_data; it's used to
- build hierarchy irq_data to match hierarchy irq_domains. The irq_data
- is used to store irq_domain pointer and hardware irq number.
-3) new callbacks are added to struct irq_domain_ops to support hierarchy
- irq_domain operations.
-
-With support of hierarchy irq_domain and hierarchy irq_data ready, an
-irq_domain structure is built for each interrupt controller, and an
+2) The :c:member:`parent_data` field in struct irq_data is used to
+ build hierarchy irq_data to match hierarchy irq_domains. The
+ irq_data is used to store irq_domain pointer and hardware irq
+ number.
+3) The :c:member:`alloc()`, :c:member:`free()`, and other callbacks in
+ struct irq_domain_ops to support hierarchy irq_domain operations.
+
+With the support of hierarchy irq_domain and hierarchy irq_data ready,
+an irq_domain structure is built for each interrupt controller, and an
irq_data structure is allocated for each irq_domain associated with an
-IRQ. Now we could go one step further to support stacked(hierarchy)
+IRQ.
+
+For an interrupt controller driver to support hierarchy irq_domain, it
+needs to:
+
+1) Implement irq_domain_ops.alloc() and irq_domain_ops.free()
+2) Optionally, implement irq_domain_ops.activate() and
+ irq_domain_ops.deactivate().
+3) Optionally, implement an irq_chip to manage the interrupt controller
+ hardware.
+4) There is no need to implement irq_domain_ops.map() and
+ irq_domain_ops.unmap(). They are unused with hierarchy irq_domain.
+
+Note the hierarchy irq_domain is in no way x86-specific, and is
+heavily used to support other architectures, such as ARM, ARM64 etc.
+
+Stacked irq_chip
+~~~~~~~~~~~~~~~~
+
+Now, we could go one step further to support stacked (hierarchy)
irq_chip. That is, an irq_chip is associated with each irq_data along
the hierarchy. A child irq_chip may implement a required action by
itself or by cooperating with its parent irq_chip.
@@ -276,22 +293,28 @@ with the hardware managed by itself and may ask for services from its
parent irq_chip when needed. So we could achieve a much cleaner
software architecture.
-For an interrupt controller driver to support hierarchy irq_domain, it
-needs to:
-
-1) Implement irq_domain_ops.alloc and irq_domain_ops.free
-2) Optionally implement irq_domain_ops.activate and
- irq_domain_ops.deactivate.
-3) Optionally implement an irq_chip to manage the interrupt controller
- hardware.
-4) No need to implement irq_domain_ops.map and irq_domain_ops.unmap,
- they are unused with hierarchy irq_domain.
-
-Hierarchy irq_domain is in no way x86 specific, and is heavily used to
-support other architectures, such as ARM, ARM64 etc.
-
Debugging
=========
Most of the internals of the IRQ subsystem are exposed in debugfs by
turning CONFIG_GENERIC_IRQ_DEBUGFS on.
+
+Structures and Public Functions Provided
+========================================
+
+This chapter contains the autogenerated documentation of the structures
+and exported kernel API functions which are used for IRQ domains.
+
+.. kernel-doc:: include/linux/irqdomain.h
+
+.. kernel-doc:: kernel/irq/irqdomain.c
+ :export:
+
+Internal Functions Provided
+===========================
+
+This chapter contains the autogenerated documentation of the internal
+functions.
+
+.. kernel-doc:: kernel/irq/irqdomain.c
+ :internal:
diff --git a/Documentation/core-api/kernel-api.rst b/Documentation/core-api/kernel-api.rst
index 9b3f3e5f5a95..e8211c4ca662 100644
--- a/Documentation/core-api/kernel-api.rst
+++ b/Documentation/core-api/kernel-api.rst
@@ -3,12 +3,6 @@ The Linux Kernel API
====================
-List Management Functions
-=========================
-
-.. kernel-doc:: include/linux/list.h
- :internal:
-
Basic C Library Functions
=========================
@@ -96,6 +90,12 @@ Command-line Parsing
.. kernel-doc:: lib/cmdline.c
:export:
+Error Pointers
+--------------
+
+.. kernel-doc:: include/linux/err.h
+ :internal:
+
Sorting
-------
@@ -130,34 +130,38 @@ Arithmetic Overflow Checking
CRC Functions
-------------
-.. kernel-doc:: lib/crc4.c
+.. kernel-doc:: lib/crc/crc4.c
:export:
-.. kernel-doc:: lib/crc7.c
+.. kernel-doc:: lib/crc/crc7.c
:export:
-.. kernel-doc:: lib/crc8.c
+.. kernel-doc:: lib/crc/crc8.c
:export:
-.. kernel-doc:: lib/crc16.c
+.. kernel-doc:: lib/crc/crc16.c
:export:
-.. kernel-doc:: lib/crc32.c
-
-.. kernel-doc:: lib/crc-ccitt.c
+.. kernel-doc:: lib/crc/crc-ccitt.c
:export:
-.. kernel-doc:: lib/crc-itu-t.c
+.. kernel-doc:: lib/crc/crc-itu-t.c
:export:
+.. kernel-doc:: include/linux/crc32.h
+
+.. kernel-doc:: include/linux/crc64.h
+
Base 2 log and power Functions
------------------------------
.. kernel-doc:: include/linux/log2.h
:internal:
-Integer power Functions
------------------------
+Integer log and power Functions
+-------------------------------
+
+.. kernel-doc:: include/linux/int_log.h
.. kernel-doc:: lib/math/int_pow.c
:export:
@@ -412,3 +416,15 @@ Read-Copy Update (RCU)
.. kernel-doc:: include/linux/rcu_sync.h
.. kernel-doc:: kernel/rcu/sync.c
+
+.. kernel-doc:: kernel/rcu/tasks.h
+
+.. kernel-doc:: kernel/rcu/tree_stall.h
+
+.. kernel-doc:: include/linux/rcupdate_trace.h
+
+.. kernel-doc:: include/linux/rcupdate_wait.h
+
+.. kernel-doc:: include/linux/rcuref.h
+
+.. kernel-doc:: include/linux/rcutree.h
diff --git a/Documentation/core-api/kho/bindings/kho.yaml b/Documentation/core-api/kho/bindings/kho.yaml
new file mode 100644
index 000000000000..11e8ab7b219d
--- /dev/null
+++ b/Documentation/core-api/kho/bindings/kho.yaml
@@ -0,0 +1,43 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+title: Kexec HandOver (KHO) root tree
+
+maintainers:
+ - Mike Rapoport <rppt@kernel.org>
+ - Changyuan Lyu <changyuanl@google.com>
+
+description: |
+ System memory preserved by KHO across kexec.
+
+properties:
+ compatible:
+ enum:
+ - kho-v1
+
+ preserved-memory-map:
+ description: |
+ physical address (u64) of an in-memory structure describing all preserved
+ folios and memory ranges.
+
+patternProperties:
+ "$[0-9a-f_]+^":
+ $ref: sub-fdt.yaml#
+ description: physical address of a KHO user's own FDT.
+
+required:
+ - compatible
+ - preserved-memory-map
+
+additionalProperties: false
+
+examples:
+ - |
+ kho {
+ compatible = "kho-v1";
+ preserved-memory-map = <0xf0be16 0x1000000>;
+
+ memblock {
+ fdt = <0x80cc16 0x1000000>;
+ };
+ };
diff --git a/Documentation/core-api/kho/bindings/memblock/memblock.yaml b/Documentation/core-api/kho/bindings/memblock/memblock.yaml
new file mode 100644
index 000000000000..d388c28eb91d
--- /dev/null
+++ b/Documentation/core-api/kho/bindings/memblock/memblock.yaml
@@ -0,0 +1,39 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+title: Memblock reserved memory
+
+maintainers:
+ - Mike Rapoport <rppt@kernel.org>
+
+description: |
+ Memblock can serialize its current memory reservations created with
+ reserve_mem command line option across kexec through KHO.
+ The post-KHO kernel can then consume these reservations and they are
+ guaranteed to have the same physical address.
+
+properties:
+ compatible:
+ enum:
+ - reserve-mem-v1
+
+patternProperties:
+ "$[0-9a-f_]+^":
+ $ref: reserve-mem.yaml#
+ description: reserved memory regions
+
+required:
+ - compatible
+
+additionalProperties: false
+
+examples:
+ - |
+ memblock {
+ compatible = "memblock-v1";
+ n1 {
+ compatible = "reserve-mem-v1";
+ start = <0xc06b 0x4000000>;
+ size = <0x04 0x00>;
+ };
+ };
diff --git a/Documentation/core-api/kho/bindings/memblock/reserve-mem.yaml b/Documentation/core-api/kho/bindings/memblock/reserve-mem.yaml
new file mode 100644
index 000000000000..10282d3d1bcd
--- /dev/null
+++ b/Documentation/core-api/kho/bindings/memblock/reserve-mem.yaml
@@ -0,0 +1,40 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+title: Memblock reserved memory regions
+
+maintainers:
+ - Mike Rapoport <rppt@kernel.org>
+
+description: |
+ Memblock can serialize its current memory reservations created with
+ reserve_mem command line option across kexec through KHO.
+ This object describes each such region.
+
+properties:
+ compatible:
+ enum:
+ - reserve-mem-v1
+
+ start:
+ description: |
+ physical address (u64) of the reserved memory region.
+
+ size:
+ description: |
+ size (u64) of the reserved memory region.
+
+required:
+ - compatible
+ - start
+ - size
+
+additionalProperties: false
+
+examples:
+ - |
+ n1 {
+ compatible = "reserve-mem-v1";
+ start = <0xc06b 0x4000000>;
+ size = <0x04 0x00>;
+ };
diff --git a/Documentation/core-api/kho/bindings/sub-fdt.yaml b/Documentation/core-api/kho/bindings/sub-fdt.yaml
new file mode 100644
index 000000000000..b9a3d2d24850
--- /dev/null
+++ b/Documentation/core-api/kho/bindings/sub-fdt.yaml
@@ -0,0 +1,27 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+title: KHO users' FDT address
+
+maintainers:
+ - Mike Rapoport <rppt@kernel.org>
+ - Changyuan Lyu <changyuanl@google.com>
+
+description: |
+ Physical address of an FDT blob registered by a KHO user.
+
+properties:
+ fdt:
+ description: |
+ physical address (u64) of an FDT blob.
+
+required:
+ - fdt
+
+additionalProperties: false
+
+examples:
+ - |
+ memblock {
+ fdt = <0x80cc16 0x1000000>;
+ };
diff --git a/Documentation/core-api/kho/concepts.rst b/Documentation/core-api/kho/concepts.rst
new file mode 100644
index 000000000000..d626d1dbd678
--- /dev/null
+++ b/Documentation/core-api/kho/concepts.rst
@@ -0,0 +1,74 @@
+.. SPDX-License-Identifier: GPL-2.0-or-later
+.. _kho-concepts:
+
+=======================
+Kexec Handover Concepts
+=======================
+
+Kexec HandOver (KHO) is a mechanism that allows Linux to preserve memory
+regions, which could contain serialized system states, across kexec.
+
+It introduces multiple concepts:
+
+KHO FDT
+=======
+
+Every KHO kexec carries a KHO specific flattened device tree (FDT) blob
+that describes preserved memory regions. These regions contain either
+serialized subsystem states, or in-memory data that shall not be touched
+across kexec. After KHO, subsystems can retrieve and restore preserved
+memory regions from KHO FDT.
+
+KHO only uses the FDT container format and libfdt library, but does not
+adhere to the same property semantics that normal device trees do: Properties
+are passed in native endianness and standardized properties like ``regs`` and
+``ranges`` do not exist, hence there are no ``#...-cells`` properties.
+
+KHO is still under development. The FDT schema is unstable and would change
+in the future.
+
+Scratch Regions
+===============
+
+To boot into kexec, we need to have a physically contiguous memory range that
+contains no handed over memory. Kexec then places the target kernel and initrd
+into that region. The new kernel exclusively uses this region for memory
+allocations before during boot up to the initialization of the page allocator.
+
+We guarantee that we always have such regions through the scratch regions: On
+first boot KHO allocates several physically contiguous memory regions. Since
+after kexec these regions will be used by early memory allocations, there is a
+scratch region per NUMA node plus a scratch region to satisfy allocations
+requests that do not require particular NUMA node assignment.
+By default, size of the scratch region is calculated based on amount of memory
+allocated during boot. The ``kho_scratch`` kernel command line option may be
+used to explicitly define size of the scratch regions.
+The scratch regions are declared as CMA when page allocator is initialized so
+that their memory can be used during system lifetime. CMA gives us the
+guarantee that no handover pages land in that region, because handover pages
+must be at a static physical memory location and CMA enforces that only
+movable pages can be located inside.
+
+After KHO kexec, we ignore the ``kho_scratch`` kernel command line option and
+instead reuse the exact same region that was originally allocated. This allows
+us to recursively execute any amount of KHO kexecs. Because we used this region
+for boot memory allocations and as target memory for kexec blobs, some parts
+of that memory region may be reserved. These reservations are irrelevant for
+the next KHO, because kexec can overwrite even the original kernel.
+
+.. _kho-finalization-phase:
+
+KHO finalization phase
+======================
+
+To enable user space based kexec file loader, the kernel needs to be able to
+provide the FDT that describes the current kernel's state before
+performing the actual kexec. The process of generating that FDT is
+called serialization. When the FDT is generated, some properties
+of the system may become immutable because they are already written down
+in the FDT. That state is called the KHO finalization phase.
+
+Public API
+==========
+.. kernel-doc:: kernel/liveupdate/kexec_handover.c
+ :export:
diff --git a/Documentation/core-api/kho/fdt.rst b/Documentation/core-api/kho/fdt.rst
new file mode 100644
index 000000000000..62505285d60d
--- /dev/null
+++ b/Documentation/core-api/kho/fdt.rst
@@ -0,0 +1,80 @@
+.. SPDX-License-Identifier: GPL-2.0-or-later
+
+=======
+KHO FDT
+=======
+
+KHO uses the flattened device tree (FDT) container format and libfdt
+library to create and parse the data that is passed between the
+kernels. The properties in KHO FDT are stored in native format.
+It includes the physical address of an in-memory structure describing
+all preserved memory regions, as well as physical addresses of KHO users'
+own FDTs. Interpreting those sub FDTs is the responsibility of KHO users.
+
+KHO nodes and properties
+========================
+
+Property ``preserved-memory-map``
+---------------------------------
+
+KHO saves a special property named ``preserved-memory-map`` under the root node.
+This node contains the physical address of an in-memory structure for KHO to
+preserve memory regions across kexec.
+
+Property ``compatible``
+-----------------------
+
+The ``compatible`` property determines compatibility between the kernel
+that created the KHO FDT and the kernel that attempts to load it.
+If the kernel that loads the KHO FDT is not compatible with it, the entire
+KHO process will be bypassed.
+
+Property ``fdt``
+----------------
+
+Generally, a KHO user serialize its state into its own FDT and instructs
+KHO to preserve the underlying memory, such that after kexec, the new kernel
+can recover its state from the preserved FDT.
+
+A KHO user thus can create a node in KHO root tree and save the physical address
+of its own FDT in that node's property ``fdt`` .
+
+Examples
+========
+
+The following example demonstrates KHO FDT that preserves two memory
+regions created with ``reserve_mem`` kernel command line parameter::
+
+ /dts-v1/;
+
+ / {
+ compatible = "kho-v1";
+
+ preserved-memory-map = <0x40be16 0x1000000>;
+
+ memblock {
+ fdt = <0x1517 0x1000000>;
+ };
+ };
+
+where the ``memblock`` node contains an FDT that is requested by the
+subsystem memblock for preservation. The FDT contains the following
+serialized data::
+
+ /dts-v1/;
+
+ / {
+ compatible = "memblock-v1";
+
+ n1 {
+ compatible = "reserve-mem-v1";
+ start = <0xc06b 0x4000000>;
+ size = <0x04 0x00>;
+ };
+
+ n2 {
+ compatible = "reserve-mem-v1";
+ start = <0xc067 0x4000000>;
+ size = <0x04 0x00>;
+ };
+ };
diff --git a/Documentation/core-api/kho/index.rst b/Documentation/core-api/kho/index.rst
new file mode 100644
index 000000000000..0c63b0c5c143
--- /dev/null
+++ b/Documentation/core-api/kho/index.rst
@@ -0,0 +1,13 @@
+.. SPDX-License-Identifier: GPL-2.0-or-later
+
+========================
+Kexec Handover Subsystem
+========================
+
+.. toctree::
+ :maxdepth: 1
+
+ concepts
+ fdt
+
+.. only:: subproject and html
diff --git a/Documentation/core-api/kref.rst b/Documentation/core-api/kref.rst
index c61eea6f1bf2..8db9ff03d952 100644
--- a/Documentation/core-api/kref.rst
+++ b/Documentation/core-api/kref.rst
@@ -3,7 +3,7 @@ Adding reference counters (krefs) to kernel objects
===================================================
:Author: Corey Minyard <minyard@acm.org>
-:Author: Thomas Hellstrom <thellstrom@vmware.com>
+:Author: Thomas Hellström <thomas.hellstrom@linux.intel.com>
A lot of this was lifted from Greg Kroah-Hartman's 2004 OLS paper and
presentation on krefs, which can be found at:
@@ -321,3 +321,8 @@ rcu grace period after release_entry_rcu was called. That can be accomplished
by using kfree_rcu(entry, rhead) as done above, or by calling synchronize_rcu()
before using kfree, but note that synchronize_rcu() may sleep for a
substantial amount of time.
+
+Functions and structures
+========================
+
+.. kernel-doc:: include/linux/kref.h
diff --git a/Documentation/core-api/list.rst b/Documentation/core-api/list.rst
new file mode 100644
index 000000000000..86873ce9adbf
--- /dev/null
+++ b/Documentation/core-api/list.rst
@@ -0,0 +1,776 @@
+.. SPDX-License-Identifier: GPL-2.0+
+
+=====================
+Linked Lists in Linux
+=====================
+
+:Author: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
+
+.. contents::
+
+Introduction
+============
+
+Linked lists are one of the most basic data structures used in many programs.
+The Linux kernel implements several different flavours of linked lists. The
+purpose of this document is not to explain linked lists in general, but to show
+new kernel developers how to use the Linux kernel implementations of linked
+lists.
+
+Please note that while linked lists certainly are ubiquitous, they are rarely
+the best data structure to use in cases where a simple array doesn't already
+suffice. In particular, due to their poor data locality, linked lists are a bad
+choice in situations where performance may be of consideration. Familiarizing
+oneself with other in-kernel generic data structures, especially for concurrent
+accesses, is highly encouraged.
+
+Linux implementation of doubly linked lists
+===========================================
+
+Linux's linked list implementations can be used by including the header file
+``<linux/list.h>``.
+
+The doubly-linked list will likely be the most familiar to many readers. It's a
+list that can efficiently be traversed forwards and backwards.
+
+The Linux kernel's doubly-linked list is circular in nature. This means that to
+get from the head node to the tail, we can just travel one edge backwards.
+Similarly, to get from the tail node to the head, we can simply travel forwards
+"beyond" the tail and arrive back at the head.
+
+Declaring a node
+----------------
+
+A node in a doubly-linked list is declared by adding a struct list_head
+member to the data structure you wish to be contained in the list:
+
+.. code-block:: c
+
+ struct clown {
+ unsigned long long shoe_size;
+ const char *name;
+ struct list_head node; /* the aforementioned member */
+ };
+
+This may be an unfamiliar approach to some, as the classical explanation of a
+linked list is a list node data structure with pointers to the previous and next
+list node, as well the payload data. Linux chooses this approach because it
+allows for generic list modification code regardless of what data structure is
+contained within the list. Since the struct list_head member is not a pointer
+but part of the data structure proper, the container_of() pattern can be used by
+the list implementation to access the payload data regardless of its type, while
+staying oblivious to what said type actually is.
+
+Declaring and initializing a list
+---------------------------------
+
+A doubly-linked list can then be declared as just another struct list_head,
+and initialized with the LIST_HEAD_INIT() macro during initial assignment, or
+with the INIT_LIST_HEAD() function later:
+
+.. code-block:: c
+
+ struct clown_car {
+ int tyre_pressure[4];
+ struct list_head clowns; /* Looks like a node! */
+ };
+
+ /* ... Somewhere later in our driver ... */
+
+ static int circus_init(struct circus_priv *circus)
+ {
+ struct clown_car other_car = {
+ .tyre_pressure = {10, 12, 11, 9},
+ .clowns = LIST_HEAD_INIT(other_car.clowns)
+ };
+
+ INIT_LIST_HEAD(&circus->car.clowns);
+
+ return 0;
+ }
+
+A further point of confusion to some may be that the list itself doesn't really
+have its own type. The concept of the entire linked list and a
+struct list_head member that points to other entries in the list are one and
+the same.
+
+Adding nodes to the list
+------------------------
+
+Adding a node to the linked list is done through the list_add() macro.
+
+We'll return to our clown car example to illustrate how nodes get added to the
+list:
+
+.. code-block:: c
+
+ static int circus_fill_car(struct circus_priv *circus)
+ {
+ struct clown_car *car = &circus->car;
+ struct clown *grock;
+ struct clown *dimitri;
+
+ /* State 1 */
+
+ grock = kzalloc(sizeof(*grock), GFP_KERNEL);
+ if (!grock)
+ return -ENOMEM;
+ grock->name = "Grock";
+ grock->shoe_size = 1000;
+
+ /* Note that we're adding the "node" member */
+ list_add(&grock->node, &car->clowns);
+
+ /* State 2 */
+
+ dimitri = kzalloc(sizeof(*dimitri), GFP_KERNEL);
+ if (!dimitri)
+ return -ENOMEM;
+ dimitri->name = "Dimitri";
+ dimitri->shoe_size = 50;
+
+ list_add(&dimitri->node, &car->clowns);
+
+ /* State 3 */
+
+ return 0;
+ }
+
+In State 1, our list of clowns is still empty::
+
+ .------.
+ v |
+ .--------. |
+ | clowns |--'
+ '--------'
+
+This diagram shows the singular "clowns" node pointing at itself. In this
+diagram, and all following diagrams, only the forward edges are shown, to aid in
+clarity.
+
+In State 2, we've added Grock after the list head::
+
+ .--------------------.
+ v |
+ .--------. .-------. |
+ | clowns |---->| Grock |--'
+ '--------' '-------'
+
+This diagram shows the "clowns" node pointing at a new node labeled "Grock".
+The Grock node is pointing back at the "clowns" node.
+
+In State 3, we've added Dimitri after the list head, resulting in the following::
+
+ .------------------------------------.
+ v |
+ .--------. .---------. .-------. |
+ | clowns |---->| Dimitri |---->| Grock |--'
+ '--------' '---------' '-------'
+
+This diagram shows the "clowns" node pointing at a new node labeled "Dimitri",
+which then points at the node labeled "Grock". The "Grock" node still points
+back at the "clowns" node.
+
+If we wanted to have Dimitri inserted at the end of the list instead, we'd use
+list_add_tail(). Our code would then look like this:
+
+.. code-block:: c
+
+ static int circus_fill_car(struct circus_priv *circus)
+ {
+ /* ... */
+
+ list_add_tail(&dimitri->node, &car->clowns);
+
+ /* State 3b */
+
+ return 0;
+ }
+
+This results in the following list::
+
+ .------------------------------------.
+ v |
+ .--------. .-------. .---------. |
+ | clowns |---->| Grock |---->| Dimitri |--'
+ '--------' '-------' '---------'
+
+This diagram shows the "clowns" node pointing at the node labeled "Grock",
+which points at the new node labeled "Dimitri". The node labeled "Dimitri"
+points back at the "clowns" node.
+
+Traversing the list
+-------------------
+
+To iterate the list, we can loop through all nodes within the list with
+list_for_each().
+
+In our clown example, this results in the following somewhat awkward code:
+
+.. code-block:: c
+
+ static unsigned long long circus_get_max_shoe_size(struct circus_priv *circus)
+ {
+ unsigned long long res = 0;
+ struct clown *e;
+ struct list_head *cur;
+
+ list_for_each(cur, &circus->car.clowns) {
+ e = list_entry(cur, struct clown, node);
+ if (e->shoe_size > res)
+ res = e->shoe_size;
+ }
+
+ return res;
+ }
+
+The list_entry() macro internally uses the aforementioned container_of() to
+retrieve the data structure instance that ``node`` is a member of.
+
+Note how the additional list_entry() call is a little awkward here. It's only
+there because we're iterating through the ``node`` members, but we really want
+to iterate through the payload, i.e. the ``struct clown`` that contains each
+node's struct list_head. For this reason, there is a second macro:
+list_for_each_entry()
+
+Using it would change our code to something like this:
+
+.. code-block:: c
+
+ static unsigned long long circus_get_max_shoe_size(struct circus_priv *circus)
+ {
+ unsigned long long res = 0;
+ struct clown *e;
+
+ list_for_each_entry(e, &circus->car.clowns, node) {
+ if (e->shoe_size > res)
+ res = e->shoe_size;
+ }
+
+ return res;
+ }
+
+This eliminates the need for the list_entry() step, and our loop cursor is now
+of the type of our payload. The macro is given the member name that corresponds
+to the list's struct list_head within the clown data structure so that it can
+still walk the list.
+
+Removing nodes from the list
+----------------------------
+
+The list_del() function can be used to remove entries from the list. It not only
+removes the given entry from the list, but poisons the entry's ``prev`` and
+``next`` pointers, so that unintended use of the entry after removal does not
+go unnoticed.
+
+We can extend our previous example to remove one of the entries:
+
+.. code-block:: c
+
+ static int circus_fill_car(struct circus_priv *circus)
+ {
+ /* ... */
+
+ list_add(&dimitri->node, &car->clowns);
+
+ /* State 3 */
+
+ list_del(&dimitri->node);
+
+ /* State 4 */
+
+ return 0;
+ }
+
+The result of this would be this::
+
+ .--------------------.
+ v |
+ .--------. .-------. | .---------.
+ | clowns |---->| Grock |--' | Dimitri |
+ '--------' '-------' '---------'
+
+This diagram shows the "clowns" node pointing at the node labeled "Grock",
+which points back at the "clowns" node. Off to the side is a lone node labeled
+"Dimitri", which has no arrows pointing anywhere.
+
+Note how the Dimitri node does not point to itself; its pointers are
+intentionally set to a "poison" value that the list code refuses to traverse.
+
+If we wanted to reinitialize the removed node instead to make it point at itself
+again like an empty list head, we can use list_del_init() instead:
+
+.. code-block:: c
+
+ static int circus_fill_car(struct circus_priv *circus)
+ {
+ /* ... */
+
+ list_add(&dimitri->node, &car->clowns);
+
+ /* State 3 */
+
+ list_del_init(&dimitri->node);
+
+ /* State 4b */
+
+ return 0;
+ }
+
+This results in the deleted node pointing to itself again::
+
+ .--------------------. .-------.
+ v | v |
+ .--------. .-------. | .---------. |
+ | clowns |---->| Grock |--' | Dimitri |--'
+ '--------' '-------' '---------'
+
+This diagram shows the "clowns" node pointing at the node labeled "Grock",
+which points back at the "clowns" node. Off to the side is a lone node labeled
+"Dimitri", which points to itself.
+
+Traversing whilst removing nodes
+--------------------------------
+
+Deleting entries while we're traversing the list will cause problems if we use
+list_for_each() and list_for_each_entry(), as deleting the current entry would
+modify the ``next`` pointer of it, which means the traversal can't properly
+advance to the next list entry.
+
+There is a solution to this however: list_for_each_safe() and
+list_for_each_entry_safe(). These take an additional parameter of a pointer to
+a struct list_head to use as temporary storage for the next entry during
+iteration, solving the issue.
+
+An example of how to use it:
+
+.. code-block:: c
+
+ static void circus_eject_insufficient_clowns(struct circus_priv *circus)
+ {
+ struct clown *e;
+ struct clown *n; /* temporary storage for safe iteration */
+
+ list_for_each_entry_safe(e, n, &circus->car.clowns, node) {
+ if (e->shoe_size < 500)
+ list_del(&e->node);
+ }
+ }
+
+Proper memory management (i.e. freeing the deleted node while making sure
+nothing still references it) in this case is left as an exercise to the reader.
+
+Cutting a list
+--------------
+
+There are two helper functions to cut lists with. Both take elements from the
+list ``head``, and replace the contents of the list ``list``.
+
+The first such function is list_cut_position(). It removes all list entries from
+``head`` up to and including ``entry``, placing them in ``list`` instead.
+
+In this example, it's assumed we start with the following list::
+
+ .----------------------------------------------------------------.
+ v |
+ .--------. .-------. .---------. .-----. .---------. |
+ | clowns |---->| Grock |---->| Dimitri |---->| Pic |---->| Alfredo |--'
+ '--------' '-------' '---------' '-----' '---------'
+
+With the following code, every clown up to and including "Pic" is moved from
+the "clowns" list head to a separate struct list_head initialized at local
+stack variable ``retirement``:
+
+.. code-block:: c
+
+ static void circus_retire_clowns(struct circus_priv *circus)
+ {
+ struct list_head retirement = LIST_HEAD_INIT(retirement);
+ struct clown *grock, *dimitri, *pic, *alfredo;
+ struct clown_car *car = &circus->car;
+
+ /* ... clown initialization, list adding ... */
+
+ list_cut_position(&retirement, &car->clowns, &pic->node);
+
+ /* State 1 */
+ }
+
+The resulting ``car->clowns`` list would be this::
+
+ .----------------------.
+ v |
+ .--------. .---------. |
+ | clowns |---->| Alfredo |--'
+ '--------' '---------'
+
+Meanwhile, the ``retirement`` list is transformed to the following::
+
+ .--------------------------------------------------.
+ v |
+ .------------. .-------. .---------. .-----. |
+ | retirement |---->| Grock |---->| Dimitri |---->| Pic |--'
+ '------------' '-------' '---------' '-----'
+
+The second function, list_cut_before(), is much the same, except it cuts before
+the ``entry`` node, i.e. it removes all list entries from ``head`` up to but
+excluding ``entry``, placing them in ``list`` instead. This example assumes the
+same initial starting list as the previous example:
+
+.. code-block:: c
+
+ static void circus_retire_clowns(struct circus_priv *circus)
+ {
+ struct list_head retirement = LIST_HEAD_INIT(retirement);
+ struct clown *grock, *dimitri, *pic, *alfredo;
+ struct clown_car *car = &circus->car;
+
+ /* ... clown initialization, list adding ... */
+
+ list_cut_before(&retirement, &car->clowns, &pic->node);
+
+ /* State 1b */
+ }
+
+The resulting ``car->clowns`` list would be this::
+
+ .----------------------------------.
+ v |
+ .--------. .-----. .---------. |
+ | clowns |---->| Pic |---->| Alfredo |--'
+ '--------' '-----' '---------'
+
+Meanwhile, the ``retirement`` list is transformed to the following::
+
+ .--------------------------------------.
+ v |
+ .------------. .-------. .---------. |
+ | retirement |---->| Grock |---->| Dimitri |--'
+ '------------' '-------' '---------'
+
+It should be noted that both functions will destroy links to any existing nodes
+in the destination ``struct list_head *list``.
+
+Moving entries and partial lists
+--------------------------------
+
+The list_move() and list_move_tail() functions can be used to move an entry
+from one list to another, to either the start or end respectively.
+
+In the following example, we'll assume we start with two lists ("clowns" and
+"sidewalk" in the following initial state "State 0"::
+
+ .----------------------------------------------------------------.
+ v |
+ .--------. .-------. .---------. .-----. .---------. |
+ | clowns |---->| Grock |---->| Dimitri |---->| Pic |---->| Alfredo |--'
+ '--------' '-------' '---------' '-----' '---------'
+
+ .-------------------.
+ v |
+ .----------. .-----. |
+ | sidewalk |---->| Pio |--'
+ '----------' '-----'
+
+We apply the following example code to the two lists:
+
+.. code-block:: c
+
+ static void circus_clowns_exit_car(struct circus_priv *circus)
+ {
+ struct list_head sidewalk = LIST_HEAD_INIT(sidewalk);
+ struct clown *grock, *dimitri, *pic, *alfredo, *pio;
+ struct clown_car *car = &circus->car;
+
+ /* ... clown initialization, list adding ... */
+
+ /* State 0 */
+
+ list_move(&pic->node, &sidewalk);
+
+ /* State 1 */
+
+ list_move_tail(&dimitri->node, &sidewalk);
+
+ /* State 2 */
+ }
+
+In State 1, we arrive at the following situation::
+
+ .-----------------------------------------------------.
+ | |
+ v |
+ .--------. .-------. .---------. .---------. |
+ | clowns |---->| Grock |---->| Dimitri |---->| Alfredo |--'
+ '--------' '-------' '---------' '---------'
+
+ .-------------------------------.
+ v |
+ .----------. .-----. .-----. |
+ | sidewalk |---->| Pic |---->| Pio |--'
+ '----------' '-----' '-----'
+
+In State 2, after we've moved Dimitri to the tail of sidewalk, the situation
+changes as follows::
+
+ .-------------------------------------.
+ | |
+ v |
+ .--------. .-------. .---------. |
+ | clowns |---->| Grock |---->| Alfredo |--'
+ '--------' '-------' '---------'
+
+ .-----------------------------------------------.
+ v |
+ .----------. .-----. .-----. .---------. |
+ | sidewalk |---->| Pic |---->| Pio |---->| Dimitri |--'
+ '----------' '-----' '-----' '---------'
+
+As long as the source and destination list head are part of the same list, we
+can also efficiently bulk move a segment of the list to the tail end of the
+list. We continue the previous example by adding a list_bulk_move_tail() after
+State 2, moving Pic and Pio to the tail end of the sidewalk list.
+
+.. code-block:: c
+
+ static void circus_clowns_exit_car(struct circus_priv *circus)
+ {
+ struct list_head sidewalk = LIST_HEAD_INIT(sidewalk);
+ struct clown *grock, *dimitri, *pic, *alfredo, *pio;
+ struct clown_car *car = &circus->car;
+
+ /* ... clown initialization, list adding ... */
+
+ /* State 0 */
+
+ list_move(&pic->node, &sidewalk);
+
+ /* State 1 */
+
+ list_move_tail(&dimitri->node, &sidewalk);
+
+ /* State 2 */
+
+ list_bulk_move_tail(&sidewalk, &pic->node, &pio->node);
+
+ /* State 3 */
+ }
+
+For the sake of brevity, only the altered "sidewalk" list at State 3 is depicted
+in the following diagram::
+
+ .-----------------------------------------------.
+ v |
+ .----------. .---------. .-----. .-----. |
+ | sidewalk |---->| Dimitri |---->| Pic |---->| Pio |--'
+ '----------' '---------' '-----' '-----'
+
+Do note that list_bulk_move_tail() does not do any checking as to whether all
+three supplied ``struct list_head *`` parameters really do belong to the same
+list. If you use it outside the constraints the documentation gives, then the
+result is a matter between you and the implementation.
+
+Rotating entries
+----------------
+
+A common write operation on lists, especially when using them as queues, is
+to rotate it. A list rotation means entries at the front are sent to the back.
+
+For rotation, Linux provides us with two functions: list_rotate_left() and
+list_rotate_to_front(). The former can be pictured like a bicycle chain, taking
+the entry after the supplied ``struct list_head *`` and moving it to the tail,
+which in essence means the entire list, due to its circular nature, rotates by
+one position.
+
+The latter, list_rotate_to_front(), takes the same concept one step further:
+instead of advancing the list by one entry, it advances it *until* the specified
+entry is the new front.
+
+In the following example, our starting state, State 0, is the following::
+
+ .-----------------------------------------------------------------.
+ v |
+ .--------. .-------. .---------. .-----. .---------. .-----. |
+ | clowns |-->| Grock |-->| Dimitri |-->| Pic |-->| Alfredo |-->| Pio |-'
+ '--------' '-------' '---------' '-----' '---------' '-----'
+
+The example code being used to demonstrate list rotations is the following:
+
+.. code-block:: c
+
+ static void circus_clowns_rotate(struct circus_priv *circus)
+ {
+ struct clown *grock, *dimitri, *pic, *alfredo, *pio;
+ struct clown_car *car = &circus->car;
+
+ /* ... clown initialization, list adding ... */
+
+ /* State 0 */
+
+ list_rotate_left(&car->clowns);
+
+ /* State 1 */
+
+ list_rotate_to_front(&alfredo->node, &car->clowns);
+
+ /* State 2 */
+
+ }
+
+In State 1, we arrive at the following situation::
+
+ .-----------------------------------------------------------------.
+ v |
+ .--------. .---------. .-----. .---------. .-----. .-------. |
+ | clowns |-->| Dimitri |-->| Pic |-->| Alfredo |-->| Pio |-->| Grock |-'
+ '--------' '---------' '-----' '---------' '-----' '-------'
+
+Next, after the list_rotate_to_front() call, we arrive in the following
+State 2::
+
+ .-----------------------------------------------------------------.
+ v |
+ .--------. .---------. .-----. .-------. .---------. .-----. |
+ | clowns |-->| Alfredo |-->| Pio |-->| Grock |-->| Dimitri |-->| Pic |-'
+ '--------' '---------' '-----' '-------' '---------' '-----'
+
+As is hopefully evident from the diagrams, the entries in front of "Alfredo"
+were cycled to the tail end of the list.
+
+Swapping entries
+----------------
+
+Another common operation is that two entries need to be swapped with each other.
+
+For this, Linux provides us with list_swap().
+
+In the following example, we have a list with three entries, and swap two of
+them. This is our starting state in "State 0"::
+
+ .-----------------------------------------.
+ v |
+ .--------. .-------. .---------. .-----. |
+ | clowns |-->| Grock |-->| Dimitri |-->| Pic |-'
+ '--------' '-------' '---------' '-----'
+
+.. code-block:: c
+
+ static void circus_clowns_swap(struct circus_priv *circus)
+ {
+ struct clown *grock, *dimitri, *pic;
+ struct clown_car *car = &circus->car;
+
+ /* ... clown initialization, list adding ... */
+
+ /* State 0 */
+
+ list_swap(&dimitri->node, &pic->node);
+
+ /* State 1 */
+ }
+
+The resulting list at State 1 is the following::
+
+ .-----------------------------------------.
+ v |
+ .--------. .-------. .-----. .---------. |
+ | clowns |-->| Grock |-->| Pic |-->| Dimitri |-'
+ '--------' '-------' '-----' '---------'
+
+As is evident by comparing the diagrams, the "Pic" and "Dimitri" nodes have
+traded places.
+
+Splicing two lists together
+---------------------------
+
+Say we have two lists, in the following example one represented by a list head
+we call "knie" and one we call "stey". In a hypothetical circus acquisition,
+the two list of clowns should be spliced together. The following is our
+situation in "State 0"::
+
+ .-----------------------------------------.
+ | |
+ v |
+ .------. .-------. .---------. .-----. |
+ | knie |-->| Grock |-->| Dimitri |-->| Pic |--'
+ '------' '-------' '---------' '-----'
+
+ .-----------------------------.
+ v |
+ .------. .---------. .-----. |
+ | stey |-->| Alfredo |-->| Pio |--'
+ '------' '---------' '-----'
+
+The function to splice these two lists together is list_splice(). Our example
+code is as follows:
+
+.. code-block:: c
+
+ static void circus_clowns_splice(void)
+ {
+ struct clown *grock, *dimitri, *pic, *alfredo, *pio;
+ struct list_head knie = LIST_HEAD_INIT(knie);
+ struct list_head stey = LIST_HEAD_INIT(stey);
+
+ /* ... Clown allocation and initialization here ... */
+
+ list_add_tail(&grock->node, &knie);
+ list_add_tail(&dimitri->node, &knie);
+ list_add_tail(&pic->node, &knie);
+ list_add_tail(&alfredo->node, &stey);
+ list_add_tail(&pio->node, &stey);
+
+ /* State 0 */
+
+ list_splice(&stey, &dimitri->node);
+
+ /* State 1 */
+ }
+
+The list_splice() call here adds all the entries in ``stey`` to the list
+``dimitri``'s ``node`` list_head is in, after the ``node`` of ``dimitri``. A
+somewhat surprising diagram of the resulting "State 1" follows::
+
+ .-----------------------------------------------------------------.
+ | |
+ v |
+ .------. .-------. .---------. .---------. .-----. .-----. |
+ | knie |-->| Grock |-->| Dimitri |-->| Alfredo |-->| Pio |-->| Pic |--'
+ '------' '-------' '---------' '---------' '-----' '-----'
+ ^
+ .-------------------------------'
+ |
+ .------. |
+ | stey |--'
+ '------'
+
+Traversing the ``stey`` list no longer results in correct behavior. A call of
+list_for_each() on ``stey`` results in an infinite loop, as it never returns
+back to the ``stey`` list head.
+
+This is because list_splice() did not reinitialize the list_head it took
+entries from, leaving its pointer pointing into what is now a different list.
+
+If we want to avoid this situation, list_splice_init() can be used. It does the
+same thing as list_splice(), except reinitalizes the donor list_head after the
+transplant.
+
+Concurrency considerations
+--------------------------
+
+Concurrent access and modification of a list needs to be protected with a lock
+in most cases. Alternatively and preferably, one may use the RCU primitives for
+lists in read-mostly use-cases, where read accesses to the list are common but
+modifications to the list less so. See Documentation/RCU/listRCU.rst for more
+details.
+
+Further reading
+---------------
+
+* `How does the kernel implements Linked Lists? - KernelNewbies <https://kernelnewbies.org/FAQ/LinkedLists>`_
+
+Full List API
+=============
+
+.. kernel-doc:: include/linux/list.h
+ :internal:
diff --git a/Documentation/core-api/liveupdate.rst b/Documentation/core-api/liveupdate.rst
new file mode 100644
index 000000000000..7960eb15a81f
--- /dev/null
+++ b/Documentation/core-api/liveupdate.rst
@@ -0,0 +1,61 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+========================
+Live Update Orchestrator
+========================
+:Author: Pasha Tatashin <pasha.tatashin@soleen.com>
+
+.. kernel-doc:: kernel/liveupdate/luo_core.c
+ :doc: Live Update Orchestrator (LUO)
+
+LUO Sessions
+============
+.. kernel-doc:: kernel/liveupdate/luo_session.c
+ :doc: LUO Sessions
+
+LUO Preserving File Descriptors
+===============================
+.. kernel-doc:: kernel/liveupdate/luo_file.c
+ :doc: LUO File Descriptors
+
+Live Update Orchestrator ABI
+============================
+.. kernel-doc:: include/linux/kho/abi/luo.h
+ :doc: Live Update Orchestrator ABI
+
+The following types of file descriptors can be preserved
+
+.. toctree::
+ :maxdepth: 1
+
+ ../mm/memfd_preservation
+
+Public API
+==========
+.. kernel-doc:: include/linux/liveupdate.h
+
+.. kernel-doc:: include/linux/kho/abi/luo.h
+ :functions:
+
+.. kernel-doc:: kernel/liveupdate/luo_core.c
+ :export:
+
+.. kernel-doc:: kernel/liveupdate/luo_file.c
+ :export:
+
+Internal API
+============
+.. kernel-doc:: kernel/liveupdate/luo_core.c
+ :internal:
+
+.. kernel-doc:: kernel/liveupdate/luo_session.c
+ :internal:
+
+.. kernel-doc:: kernel/liveupdate/luo_file.c
+ :internal:
+
+See Also
+========
+
+- :doc:`Live Update uAPI </userspace-api/liveupdate>`
+- :doc:`/core-api/kho/concepts`
diff --git a/Documentation/core-api/maple_tree.rst b/Documentation/core-api/maple_tree.rst
index 45defcf15da7..ccdd1615cf97 100644
--- a/Documentation/core-api/maple_tree.rst
+++ b/Documentation/core-api/maple_tree.rst
@@ -81,6 +81,9 @@ section.
Sometimes it is necessary to ensure the next call to store to a maple tree does
not allocate memory, please see :ref:`maple-tree-advanced-api` for this use case.
+You can use mtree_dup() to duplicate an entire maple tree. It is a more
+efficient way than inserting all elements one by one into a new tree.
+
Finally, you can remove all entries from a maple tree by calling
mtree_destroy(). If the maple tree entries are pointers, you may wish to free
the entries first.
@@ -112,6 +115,7 @@ Takes ma_lock internally:
* mtree_insert()
* mtree_insert_range()
* mtree_erase()
+ * mtree_dup()
* mtree_destroy()
* mt_set_in_rcu()
* mt_clear_in_rcu()
@@ -175,7 +179,7 @@ will return the previous entry which occurs before the entry at index.
mas_find() will find the first entry which exists at or above index on
the first call, and the next entry from every subsequent calls.
-mas_find_rev() will find the fist entry which exists at or below the last on
+mas_find_rev() will find the first entry which exists at or below the last on
the first call, and the previous entry from every subsequent calls.
If the user needs to yield the lock during an operation, then the maple state
diff --git a/Documentation/core-api/memory-allocation.rst b/Documentation/core-api/memory-allocation.rst
index 1c58d883b273..0f19dd524323 100644
--- a/Documentation/core-api/memory-allocation.rst
+++ b/Documentation/core-api/memory-allocation.rst
@@ -45,8 +45,9 @@ here we briefly outline their recommended usage:
* If the allocation is performed from an atomic context, e.g interrupt
handler, use ``GFP_NOWAIT``. This flag prevents direct reclaim and
IO or filesystem operations. Consequently, under memory pressure
- ``GFP_NOWAIT`` allocation is likely to fail. Allocations which
- have a reasonable fallback should be using ``GFP_NOWARN``.
+ ``GFP_NOWAIT`` allocation is likely to fail. Users of this flag need
+ to provide a suitable fallback to cope with such failures where
+ appropriate.
* If you think that accessing memory reserves is justified and the kernel
will be stressed unless allocation succeeds, you may use ``GFP_ATOMIC``.
* Untrusted allocations triggered from userspace should be a subject
@@ -144,8 +145,10 @@ configuration, but it is a good practice to use `kmalloc` for objects
smaller than page size.
The address of a chunk allocated with `kmalloc` is aligned to at least
-ARCH_KMALLOC_MINALIGN bytes. For sizes which are a power of two, the
-alignment is also guaranteed to be at least the respective size.
+ARCH_KMALLOC_MINALIGN bytes. For sizes which are a power of two, the
+alignment is also guaranteed to be at least the respective size. For other
+sizes, the alignment is guaranteed to be at least the largest power-of-two
+divisor of the size.
Chunks allocated with kmalloc() can be resized with krealloc(). Similarly
to kmalloc_array(): a helper for resizing arrays is provided in the form of
diff --git a/Documentation/core-api/memory-hotplug.rst b/Documentation/core-api/memory-hotplug.rst
index 682259ee633a..8fc97c2379de 100644
--- a/Documentation/core-api/memory-hotplug.rst
+++ b/Documentation/core-api/memory-hotplug.rst
@@ -9,6 +9,9 @@ Memory hotplug event notifier
Hotplugging events are sent to a notification queue.
+Memory notifier
+----------------
+
There are six types of notification defined in ``include/linux/memory.h``:
MEM_GOING_ONLINE
@@ -56,20 +59,18 @@ The third argument (arg) passes a pointer of struct memory_notify::
struct memory_notify {
unsigned long start_pfn;
unsigned long nr_pages;
- int status_change_nid_normal;
- int status_change_nid;
}
- start_pfn is start_pfn of online/offline memory.
- nr_pages is # of pages of online/offline memory.
-- status_change_nid_normal is set node id when N_NORMAL_MEMORY of nodemask
- is (will be) set/clear, if this is -1, then nodemask status is not changed.
-- status_change_nid is set node id when N_MEMORY of nodemask is (will be)
- set/clear. It means a new(memoryless) node gets new memory by online and a
- node loses all memory. If this is -1, then nodemask status is not changed.
- If status_changed_nid* >= 0, callback should create/discard structures for the
- node if necessary.
+It is possible to get notified for MEM_CANCEL_ONLINE without having been notified
+for MEM_GOING_ONLINE, and the same applies to MEM_CANCEL_OFFLINE and
+MEM_GOING_OFFLINE.
+This can happen when a consumer fails, meaning we break the callchain and we
+stop calling the remaining consumers of the notifier.
+It is then important that users of memory_notify make no assumptions and get
+prepared to handle such cases.
The callback routine shall return one of the values
NOTIFY_DONE, NOTIFY_OK, NOTIFY_BAD, NOTIFY_STOP
@@ -83,6 +84,78 @@ further processing of the notification queue.
NOTIFY_STOP stops further processing of the notification queue.
+Numa node notifier
+------------------
+
+There are six types of notification defined in ``include/linux/node.h``:
+
+NODE_ADDING_FIRST_MEMORY
+ Generated before memory becomes available to this node for the first time.
+
+NODE_CANCEL_ADDING_FIRST_MEMORY
+ Generated if NODE_ADDING_FIRST_MEMORY fails.
+
+NODE_ADDED_FIRST_MEMORY
+ Generated when memory has become available fo this node for the first time.
+
+NODE_REMOVING_LAST_MEMORY
+ Generated when the last memory available to this node is about to be offlined.
+
+NODE_CANCEL_REMOVING_LAST_MEMORY
+ Generated when NODE_CANCEL_REMOVING_LAST_MEMORY fails.
+
+NODE_REMOVED_LAST_MEMORY
+ Generated when the last memory available to this node has been offlined.
+
+A callback routine can be registered by calling::
+
+ hotplug_node_notifier(callback_func, priority)
+
+Callback functions with higher values of priority are called before callback
+functions with lower values.
+
+A callback function must have the following prototype::
+
+ int callback_func(
+
+ struct notifier_block *self, unsigned long action, void *arg);
+
+The first argument of the callback function (self) is a pointer to the block
+of the notifier chain that points to the callback function itself.
+The second argument (action) is one of the event types described above.
+The third argument (arg) passes a pointer of struct node_notify::
+
+ struct node_notify {
+ int nid;
+ }
+
+- nid is the node we are adding or removing memory to.
+
+It is possible to get notified for NODE_CANCEL_ADDING_FIRST_MEMORY without
+having been notified for NODE_ADDING_FIRST_MEMORY, and the same applies to
+NODE_CANCEL_REMOVING_LAST_MEMORY and NODE_REMOVING_LAST_MEMORY.
+This can happen when a consumer fails, meaning we break the callchain and we
+stop calling the remaining consumers of the notifier.
+It is then important that users of node_notify make no assumptions and get
+prepared to handle such cases.
+
+The callback routine shall return one of the values
+NOTIFY_DONE, NOTIFY_OK, NOTIFY_BAD, NOTIFY_STOP
+defined in ``include/linux/notifier.h``
+
+NOTIFY_DONE and NOTIFY_OK have no effect on the further processing.
+
+NOTIFY_BAD is used as response to the NODE_ADDING_FIRST_MEMORY,
+NODE_REMOVING_LAST_MEMORY, NODE_ADDED_FIRST_MEMORY or
+NODE_REMOVED_LAST_MEMORY action to cancel hotplugging.
+It stops further processing of the notification queue.
+
+NOTIFY_STOP stops further processing of the notification queue.
+
+Please note that we should not fail for NODE_ADDED_FIRST_MEMORY /
+NODE_REMOVED_FIRST_MEMORY, as memory_hotplug code cannot rollback at that
+point anymore.
+
Locking Internals
=================
diff --git a/Documentation/core-api/min_heap.rst b/Documentation/core-api/min_heap.rst
new file mode 100644
index 000000000000..9f57766581df
--- /dev/null
+++ b/Documentation/core-api/min_heap.rst
@@ -0,0 +1,302 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+============
+Min Heap API
+============
+
+:Author: Kuan-Wei Chiu <visitorckw@gmail.com>
+
+Introduction
+============
+
+The Min Heap API provides a set of functions and macros for managing min-heaps
+in the Linux kernel. A min-heap is a binary tree structure where the value of
+each node is less than or equal to the values of its children, ensuring that
+the smallest element is always at the root.
+
+This document provides a guide to the Min Heap API, detailing how to define and
+use min-heaps. Users should not directly call functions with **__min_heap_*()**
+prefixes, but should instead use the provided macro wrappers.
+
+In addition to the standard version of the functions, the API also includes a
+set of inline versions for performance-critical scenarios. These inline
+functions have the same names as their non-inline counterparts but include an
+**_inline** suffix. For example, **__min_heap_init_inline** and its
+corresponding macro wrapper **min_heap_init_inline**. The inline versions allow
+custom comparison and swap functions to be called directly, rather than through
+indirect function calls. This can significantly reduce overhead, especially
+when CONFIG_MITIGATION_RETPOLINE is enabled, as indirect function calls become
+more expensive. As with the non-inline versions, it is important to use the
+macro wrappers for inline functions instead of directly calling the functions
+themselves.
+
+Data Structures
+===============
+
+Min-Heap Definition
+-------------------
+
+The core data structure for representing a min-heap is defined using the
+**MIN_HEAP_PREALLOCATED** and **DEFINE_MIN_HEAP** macros. These macros allow
+you to define a min-heap with a preallocated buffer or dynamically allocated
+memory.
+
+Example:
+
+.. code-block:: c
+
+ #define MIN_HEAP_PREALLOCATED(_type, _name, _nr)
+ struct _name {
+ size_t nr; /* Number of elements in the heap */
+ size_t size; /* Maximum number of elements that can be held */
+ _type *data; /* Pointer to the heap data */
+ _type preallocated[_nr]; /* Static preallocated array */
+ }
+
+ #define DEFINE_MIN_HEAP(_type, _name) MIN_HEAP_PREALLOCATED(_type, _name, 0)
+
+A typical heap structure will include a counter for the number of elements
+(`nr`), the maximum capacity of the heap (`size`), and a pointer to an array of
+elements (`data`). Optionally, you can specify a static array for preallocated
+heap storage using **MIN_HEAP_PREALLOCATED**.
+
+Min Heap Callbacks
+------------------
+
+The **struct min_heap_callbacks** provides customization options for ordering
+elements in the heap and swapping them. It contains two function pointers:
+
+.. code-block:: c
+
+ struct min_heap_callbacks {
+ bool (*less)(const void *lhs, const void *rhs, void *args);
+ void (*swp)(void *lhs, void *rhs, void *args);
+ };
+
+- **less** is the comparison function used to establish the order of elements.
+- **swp** is a function for swapping elements in the heap. If swp is set to
+ NULL, the default swap function will be used, which swaps the elements based on their size
+
+Macro Wrappers
+==============
+
+The following macro wrappers are provided for interacting with the heap in a
+user-friendly manner. Each macro corresponds to a function that operates on the
+heap, and they abstract away direct calls to internal functions.
+
+Each macro accepts various parameters that are detailed below.
+
+Heap Initialization
+--------------------
+
+.. code-block:: c
+
+ min_heap_init(heap, data, size);
+
+- **heap**: A pointer to the min-heap structure to be initialized.
+- **data**: A pointer to the buffer where the heap elements will be stored. If
+ `NULL`, the preallocated buffer within the heap structure will be used.
+- **size**: The maximum number of elements the heap can hold.
+
+This macro initializes the heap, setting its initial state. If `data` is
+`NULL`, the preallocated memory inside the heap structure will be used for
+storage. Otherwise, the user-provided buffer is used. The operation is **O(1)**.
+
+**Inline Version:** min_heap_init_inline(heap, data, size)
+
+Accessing the Top Element
+-------------------------
+
+.. code-block:: c
+
+ element = min_heap_peek(heap);
+
+- **heap**: A pointer to the min-heap from which to retrieve the smallest
+ element.
+
+This macro returns a pointer to the smallest element (the root) of the heap, or
+`NULL` if the heap is empty. The operation is **O(1)**.
+
+**Inline Version:** min_heap_peek_inline(heap)
+
+Heap Insertion
+--------------
+
+.. code-block:: c
+
+ success = min_heap_push(heap, element, callbacks, args);
+
+- **heap**: A pointer to the min-heap into which the element should be inserted.
+- **element**: A pointer to the element to be inserted into the heap.
+- **callbacks**: A pointer to a `struct min_heap_callbacks` providing the
+ `less` and `swp` functions.
+- **args**: Optional arguments passed to the `less` and `swp` functions.
+
+This macro inserts an element into the heap. It returns `true` if the insertion
+was successful and `false` if the heap is full. The operation is **O(log n)**.
+
+**Inline Version:** min_heap_push_inline(heap, element, callbacks, args)
+
+Heap Removal
+------------
+
+.. code-block:: c
+
+ success = min_heap_pop(heap, callbacks, args);
+
+- **heap**: A pointer to the min-heap from which to remove the smallest element.
+- **callbacks**: A pointer to a `struct min_heap_callbacks` providing the
+ `less` and `swp` functions.
+- **args**: Optional arguments passed to the `less` and `swp` functions.
+
+This macro removes the smallest element (the root) from the heap. It returns
+`true` if the element was successfully removed, or `false` if the heap is
+empty. The operation is **O(log n)**.
+
+**Inline Version:** min_heap_pop_inline(heap, callbacks, args)
+
+Heap Maintenance
+----------------
+
+You can use the following macros to maintain the heap's structure:
+
+.. code-block:: c
+
+ min_heap_sift_down(heap, pos, callbacks, args);
+
+- **heap**: A pointer to the min-heap.
+- **pos**: The index from which to start sifting down.
+- **callbacks**: A pointer to a `struct min_heap_callbacks` providing the
+ `less` and `swp` functions.
+- **args**: Optional arguments passed to the `less` and `swp` functions.
+
+This macro restores the heap property by moving the element at the specified
+index (`pos`) down the heap until it is in the correct position. The operation
+is **O(log n)**.
+
+**Inline Version:** min_heap_sift_down_inline(heap, pos, callbacks, args)
+
+.. code-block:: c
+
+ min_heap_sift_up(heap, idx, callbacks, args);
+
+- **heap**: A pointer to the min-heap.
+- **idx**: The index of the element to sift up.
+- **callbacks**: A pointer to a `struct min_heap_callbacks` providing the
+ `less` and `swp` functions.
+- **args**: Optional arguments passed to the `less` and `swp` functions.
+
+This macro restores the heap property by moving the element at the specified
+index (`idx`) up the heap. The operation is **O(log n)**.
+
+**Inline Version:** min_heap_sift_up_inline(heap, idx, callbacks, args)
+
+.. code-block:: c
+
+ min_heapify_all(heap, callbacks, args);
+
+- **heap**: A pointer to the min-heap.
+- **callbacks**: A pointer to a `struct min_heap_callbacks` providing the
+ `less` and `swp` functions.
+- **args**: Optional arguments passed to the `less` and `swp` functions.
+
+This macro ensures that the entire heap satisfies the heap property. It is
+called when the heap is built from scratch or after many modifications. The
+operation is **O(n)**.
+
+**Inline Version:** min_heapify_all_inline(heap, callbacks, args)
+
+Removing Specific Elements
+--------------------------
+
+.. code-block:: c
+
+ success = min_heap_del(heap, idx, callbacks, args);
+
+- **heap**: A pointer to the min-heap.
+- **idx**: The index of the element to delete.
+- **callbacks**: A pointer to a `struct min_heap_callbacks` providing the
+ `less` and `swp` functions.
+- **args**: Optional arguments passed to the `less` and `swp` functions.
+
+This macro removes an element at the specified index (`idx`) from the heap and
+restores the heap property. The operation is **O(log n)**.
+
+**Inline Version:** min_heap_del_inline(heap, idx, callbacks, args)
+
+Other Utilities
+===============
+
+- **min_heap_full(heap)**: Checks whether the heap is full.
+ Complexity: **O(1)**.
+
+.. code-block:: c
+
+ bool full = min_heap_full(heap);
+
+- `heap`: A pointer to the min-heap to check.
+
+This macro returns `true` if the heap is full, otherwise `false`.
+
+**Inline Version:** min_heap_full_inline(heap)
+
+- **min_heap_empty(heap)**: Checks whether the heap is empty.
+ Complexity: **O(1)**.
+
+.. code-block:: c
+
+ bool empty = min_heap_empty(heap);
+
+- `heap`: A pointer to the min-heap to check.
+
+This macro returns `true` if the heap is empty, otherwise `false`.
+
+**Inline Version:** min_heap_empty_inline(heap)
+
+Example Usage
+=============
+
+An example usage of the min-heap API would involve defining a heap structure,
+initializing it, and inserting and removing elements as needed.
+
+.. code-block:: c
+
+ #include <linux/min_heap.h>
+
+ int my_less_function(const void *lhs, const void *rhs, void *args) {
+ return (*(int *)lhs < *(int *)rhs);
+ }
+
+ struct min_heap_callbacks heap_cb = {
+ .less = my_less_function, /* Comparison function for heap order */
+ .swp = NULL, /* Use default swap function */
+ };
+
+ void example_usage(void) {
+ /* Pre-populate the buffer with elements */
+ int buffer[5] = {5, 2, 8, 1, 3};
+ /* Declare a min-heap */
+ DEFINE_MIN_HEAP(int, my_heap);
+
+ /* Initialize the heap with preallocated buffer and size */
+ min_heap_init(&my_heap, buffer, 5);
+
+ /* Build the heap using min_heapify_all */
+ my_heap.nr = 5; /* Set the number of elements in the heap */
+ min_heapify_all(&my_heap, &heap_cb, NULL);
+
+ /* Peek at the top element (should be 1 in this case) */
+ int *top = min_heap_peek(&my_heap);
+ pr_info("Top element: %d\n", *top);
+
+ /* Pop the top element (1) and get the new top (2) */
+ min_heap_pop(&my_heap, &heap_cb, NULL);
+ top = min_heap_peek(&my_heap);
+ pr_info("New top element: %d\n", *top);
+
+ /* Insert a new element (0) and recheck the top */
+ int new_element = 0;
+ min_heap_push(&my_heap, &new_element, &heap_cb, NULL);
+ top = min_heap_peek(&my_heap);
+ pr_info("Top element after insertion: %d\n", *top);
+ }
diff --git a/Documentation/core-api/mm-api.rst b/Documentation/core-api/mm-api.rst
index f5dde5bceaea..68193a4cfcf5 100644
--- a/Documentation/core-api/mm-api.rst
+++ b/Documentation/core-api/mm-api.rst
@@ -37,7 +37,7 @@ The Slab Cache
.. kernel-doc:: include/linux/slab.h
:internal:
-.. kernel-doc:: mm/slab.c
+.. kernel-doc:: mm/slub.c
:export:
.. kernel-doc:: mm/slab_common.c
@@ -91,12 +91,6 @@ Memory pools
.. kernel-doc:: mm/mempool.c
:export:
-DMA pools
-=========
-
-.. kernel-doc:: mm/dmapool.c
- :export:
-
More Memory Management Functions
================================
@@ -115,3 +109,26 @@ More Memory Management Functions
.. kernel-doc:: include/linux/mmzone.h
.. kernel-doc:: mm/util.c
:functions: folio_mapping
+
+.. kernel-doc:: mm/rmap.c
+.. kernel-doc:: mm/migrate.c
+.. kernel-doc:: mm/mmap.c
+.. kernel-doc:: mm/kmemleak.c
+.. #kernel-doc:: mm/hmm.c (build warnings)
+.. kernel-doc:: mm/memremap.c
+.. kernel-doc:: mm/hugetlb.c
+.. kernel-doc:: mm/swap.c
+.. kernel-doc:: mm/memcontrol.c
+.. #kernel-doc:: mm/memory-tiers.c (build warnings)
+.. kernel-doc:: mm/shmem.c
+.. kernel-doc:: mm/migrate_device.c
+.. #kernel-doc:: mm/nommu.c (duplicates kernel-doc from other files)
+.. kernel-doc:: mm/mapping_dirty_helpers.c
+.. #kernel-doc:: mm/memory-failure.c (build warnings)
+.. kernel-doc:: mm/percpu.c
+.. kernel-doc:: mm/maccess.c
+.. kernel-doc:: mm/vmscan.c
+.. kernel-doc:: mm/memory_hotplug.c
+.. kernel-doc:: mm/mmu_notifier.c
+.. kernel-doc:: mm/balloon_compaction.c
+.. kernel-doc:: mm/huge_memory.c
diff --git a/Documentation/core-api/netlink.rst b/Documentation/core-api/netlink.rst
index e4a938a05cc9..9f692b02bfe6 100644
--- a/Documentation/core-api/netlink.rst
+++ b/Documentation/core-api/netlink.rst
@@ -67,10 +67,11 @@ Globals
kernel-policy
~~~~~~~~~~~~~
-Defines if the kernel validation policy is per operation (``per-op``)
-or for the entire family (``global``). New families should use ``per-op``
-(default) to be able to narrow down the attributes accepted by a specific
-command.
+Defines whether the kernel validation policy is ``global`` i.e. the same for all
+operations of the family, defined for each operation individually - ``per-op``,
+or separately for each operation and operation type (do vs dump) - ``split``.
+New families should use ``per-op`` (default) to be able to narrow down the
+attributes accepted by a specific command.
checks
------
diff --git a/Documentation/core-api/packing.rst b/Documentation/core-api/packing.rst
index 3ed13bc9a195..f68f1e08fef9 100644
--- a/Documentation/core-api/packing.rst
+++ b/Documentation/core-api/packing.rst
@@ -151,16 +151,195 @@ the more significant 4-byte word.
We always think of our offsets as if there were no quirk, and we translate
them afterwards, before accessing the memory region.
+Note on buffer lengths not multiple of 4
+----------------------------------------
+
+To deal with memory layout quirks where groups of 4 bytes are laid out "little
+endian" relative to each other, but "big endian" within the group itself, the
+concept of groups of 4 bytes is intrinsic to the packing API (not to be
+confused with the memory access, which is performed byte by byte, though).
+
+With buffer lengths not multiple of 4, this means one group will be incomplete.
+Depending on the quirks, this may lead to discontinuities in the bit fields
+accessible through the buffer. The packing API assumes discontinuities were not
+the intention of the memory layout, so it avoids them by effectively logically
+shortening the most significant group of 4 octets to the number of octets
+actually available.
+
+Example with a 31 byte sized buffer given below. Physical buffer offsets are
+implicit, and increase from left to right within a group, and from top to
+bottom within a column.
+
+No quirks:
+
+::
+
+ 31 29 28 | Group 7 (most significant)
+ 27 26 25 24 | Group 6
+ 23 22 21 20 | Group 5
+ 19 18 17 16 | Group 4
+ 15 14 13 12 | Group 3
+ 11 10 9 8 | Group 2
+ 7 6 5 4 | Group 1
+ 3 2 1 0 | Group 0 (least significant)
+
+QUIRK_LSW32_IS_FIRST:
+
+::
+
+ 3 2 1 0 | Group 0 (least significant)
+ 7 6 5 4 | Group 1
+ 11 10 9 8 | Group 2
+ 15 14 13 12 | Group 3
+ 19 18 17 16 | Group 4
+ 23 22 21 20 | Group 5
+ 27 26 25 24 | Group 6
+ 30 29 28 | Group 7 (most significant)
+
+QUIRK_LITTLE_ENDIAN:
+
+::
+
+ 30 28 29 | Group 7 (most significant)
+ 24 25 26 27 | Group 6
+ 20 21 22 23 | Group 5
+ 16 17 18 19 | Group 4
+ 12 13 14 15 | Group 3
+ 8 9 10 11 | Group 2
+ 4 5 6 7 | Group 1
+ 0 1 2 3 | Group 0 (least significant)
+
+QUIRK_LITTLE_ENDIAN | QUIRK_LSW32_IS_FIRST:
+
+::
+
+ 0 1 2 3 | Group 0 (least significant)
+ 4 5 6 7 | Group 1
+ 8 9 10 11 | Group 2
+ 12 13 14 15 | Group 3
+ 16 17 18 19 | Group 4
+ 20 21 22 23 | Group 5
+ 24 25 26 27 | Group 6
+ 28 29 30 | Group 7 (most significant)
+
Intended use
------------
Drivers that opt to use this API first need to identify which of the above 3
quirk combinations (for a total of 8) match what the hardware documentation
-describes. Then they should wrap the packing() function, creating a new
-xxx_packing() that calls it using the proper QUIRK_* one-hot bits set.
+describes.
+
+There are 3 supported usage patterns, detailed below.
+
+packing()
+^^^^^^^^^
+
+This API function is deprecated.
The packing() function returns an int-encoded error code, which protects the
programmer against incorrect API use. The errors are not expected to occur
-during runtime, therefore it is reasonable for xxx_packing() to return void
-and simply swallow those errors. Optionally it can dump stack or print the
-error description.
+during runtime, therefore it is reasonable to wrap packing() into a custom
+function which returns void and swallows those errors. Optionally it can
+dump stack or print the error description.
+
+.. code-block:: c
+
+ void my_packing(void *buf, u64 *val, int startbit, int endbit,
+ size_t len, enum packing_op op)
+ {
+ int err;
+
+ /* Adjust quirks accordingly */
+ err = packing(buf, val, startbit, endbit, len, op, QUIRK_LSW32_IS_FIRST);
+ if (likely(!err))
+ return;
+
+ if (err == -EINVAL) {
+ pr_err("Start bit (%d) expected to be larger than end (%d)\n",
+ startbit, endbit);
+ } else if (err == -ERANGE) {
+ if ((startbit - endbit + 1) > 64)
+ pr_err("Field %d-%d too large for 64 bits!\n",
+ startbit, endbit);
+ else
+ pr_err("Cannot store %llx inside bits %d-%d (would truncate)\n",
+ *val, startbit, endbit);
+ }
+ dump_stack();
+ }
+
+pack() and unpack()
+^^^^^^^^^^^^^^^^^^^
+
+These are const-correct variants of packing(), and eliminate the last "enum
+packing_op op" argument.
+
+Calling pack(...) is equivalent, and preferred, to calling packing(..., PACK).
+
+Calling unpack(...) is equivalent, and preferred, to calling packing(..., UNPACK).
+
+pack_fields() and unpack_fields()
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The library exposes optimized functions for the scenario where there are many
+fields represented in a buffer, and it encourages consumer drivers to avoid
+repetitive calls to pack() and unpack() for each field, but instead use
+pack_fields() and unpack_fields(), which reduces the code footprint.
+
+These APIs use field definitions in arrays of ``struct packed_field_u8`` or
+``struct packed_field_u16``, allowing consumer drivers to minimize the size
+of these arrays according to their custom requirements.
+
+The pack_fields() and unpack_fields() API functions are actually macros which
+automatically select the appropriate function at compile time, based on the
+type of the fields array passed in.
+
+An additional benefit over pack() and unpack() is that sanity checks on the
+field definitions are handled at compile time with ``BUILD_BUG_ON`` rather
+than only when the offending code is executed. These functions return void and
+wrapping them to handle unexpected errors is not necessary.
+
+It is recommended, but not required, that you wrap your packed buffer into a
+structured type with a fixed size. This generally makes it easier for the
+compiler to enforce that the correct size buffer is used.
+
+Here is an example of how to use the fields APIs:
+
+.. code-block:: c
+
+ /* Ordering inside the unpacked structure is flexible and can be different
+ * from the packed buffer. Here, it is optimized to reduce padding.
+ */
+ struct data {
+ u64 field3;
+ u32 field4;
+ u16 field1;
+ u8 field2;
+ };
+
+ #define SIZE 13
+
+ typedef struct __packed { u8 buf[SIZE]; } packed_buf_t;
+
+ static const struct packed_field_u8 fields[] = {
+ PACKED_FIELD(100, 90, struct data, field1),
+ PACKED_FIELD(90, 87, struct data, field2),
+ PACKED_FIELD(86, 30, struct data, field3),
+ PACKED_FIELD(29, 0, struct data, field4),
+ };
+
+ void unpack_your_data(const packed_buf_t *buf, struct data *unpacked)
+ {
+ BUILD_BUG_ON(sizeof(*buf) != SIZE;
+
+ unpack_fields(buf, sizeof(*buf), unpacked, fields,
+ QUIRK_LITTLE_ENDIAN);
+ }
+
+ void pack_your_data(const struct data *unpacked, packed_buf_t *buf)
+ {
+ BUILD_BUG_ON(sizeof(*buf) != SIZE;
+
+ pack_fields(buf, sizeof(*buf), unpacked, fields,
+ QUIRK_LITTLE_ENDIAN);
+ }
diff --git a/Documentation/core-api/parser.rst b/Documentation/core-api/parser.rst
new file mode 100644
index 000000000000..45750d04b895
--- /dev/null
+++ b/Documentation/core-api/parser.rst
@@ -0,0 +1,17 @@
+.. SPDX-License-Identifier: GPL-2.0+
+
+==============
+Generic parser
+==============
+
+Overview
+========
+
+The generic parser is a simple parser for parsing mount options,
+filesystem options, driver options, subsystem options, etc.
+
+Parser API
+==========
+
+.. kernel-doc:: lib/parser.c
+ :export:
diff --git a/Documentation/core-api/pin_user_pages.rst b/Documentation/core-api/pin_user_pages.rst
index 9fb0b1080d3b..c16ca163b55e 100644
--- a/Documentation/core-api/pin_user_pages.rst
+++ b/Documentation/core-api/pin_user_pages.rst
@@ -112,6 +112,12 @@ pages:
This also leads to limitations: there are only 31-10==21 bits available for a
counter that increments 10 bits at a time.
+* Because of that limitation, special handling is applied to the zero pages
+ when using FOLL_PIN. We only pretend to pin a zero page - we don't alter its
+ refcount or pincount at all (it is permanent, so there's no need). The
+ unpinning functions also don't do anything to a zero page. This is
+ transparent to the caller.
+
* Callers must specifically request "dma-pinned tracking of pages". In other
words, just calling get_user_pages() will not suffice; a new set of functions,
pin_user_page() and related, must be used.
@@ -126,7 +132,7 @@ CASE 1: Direct IO (DIO)
-----------------------
There are GUP references to pages that are serving
as DIO buffers. These buffers are needed for a relatively short time (so they
-are not "long term"). No special synchronization with page_mkclean() or
+are not "long term"). No special synchronization with folio_mkclean() or
munmap() is provided. Therefore, flags to set at the call site are: ::
FOLL_PIN
@@ -138,7 +144,7 @@ CASE 2: RDMA
------------
There are GUP references to pages that are serving as DMA
buffers. These buffers are needed for a long time ("long term"). No special
-synchronization with page_mkclean() or munmap() is provided. Therefore, flags
+synchronization with folio_mkclean() or munmap() is provided. Therefore, flags
to set at the call site are: ::
FOLL_PIN | FOLL_LONGTERM
@@ -147,6 +153,8 @@ NOTE: Some pages, such as DAX pages, cannot be pinned with longterm pins. That's
because DAX pages do not have a separate page cache, and so "pinning" implies
locking down file system blocks, which is not (yet) supported in that way.
+.. _mmu-notifier-registration-case:
+
CASE 3: MMU notifier registration, with or without page faulting hardware
-------------------------------------------------------------------------
Device drivers can pin pages via get_user_pages*(), and register for mmu
@@ -162,7 +170,7 @@ callback, simply remove the range from the device's page tables.
Either way, as long as the driver unpins the pages upon mmu notifier callback,
then there is proper synchronization with both filesystem and mm
-(page_mkclean(), munmap(), etc). Therefore, neither flag needs to be set.
+(folio_mkclean(), munmap(), etc). Therefore, neither flag needs to be set.
CASE 4: Pinning for struct page manipulation only
-------------------------------------------------
@@ -188,20 +196,20 @@ INCORRECT (uses FOLL_GET calls):
write to the data within the pages
put_page()
-page_maybe_dma_pinned(): the whole point of pinning
-===================================================
+folio_maybe_dma_pinned(): the whole point of pinning
+====================================================
-The whole point of marking pages as "DMA-pinned" or "gup-pinned" is to be able
-to query, "is this page DMA-pinned?" That allows code such as page_mkclean()
+The whole point of marking folios as "DMA-pinned" or "gup-pinned" is to be able
+to query, "is this folio DMA-pinned?" That allows code such as folio_mkclean()
(and file system writeback code in general) to make informed decisions about
-what to do when a page cannot be unmapped due to such pins.
+what to do when a folio cannot be unmapped due to such pins.
What to do in those cases is the subject of a years-long series of discussions
and debates (see the References at the end of this document). It's a TODO item
here: fill in the details once that's worked out. Meanwhile, it's safe to say
that having this available: ::
- static inline bool page_maybe_dma_pinned(struct page *page)
+ static inline bool folio_maybe_dma_pinned(struct folio *folio)
...is a prerequisite to solving the long-running gup+DMA problem.
diff --git a/Documentation/core-api/printk-formats.rst b/Documentation/core-api/printk-formats.rst
index dfe7e75a71de..c0b1b6089307 100644
--- a/Documentation/core-api/printk-formats.rst
+++ b/Documentation/core-api/printk-formats.rst
@@ -15,9 +15,10 @@ Integer types
If variable is of Type, use printk format specifier:
------------------------------------------------------------
- char %d or %x
+ signed char %d or %hhx
unsigned char %u or %x
- short int %d or %x
+ char %u or %x
+ short int %d or %hx
unsigned short int %u or %x
int %d or %x
unsigned int %u or %x
@@ -27,9 +28,9 @@ Integer types
unsigned long long %llu or %llx
size_t %zu or %zx
ssize_t %zd or %zx
- s8 %d or %x
+ s8 %d or %hhx
u8 %u or %x
- s16 %d or %x
+ s16 %d or %hx
u16 %u or %x
s32 %d or %x
u32 %u or %x
@@ -208,12 +209,17 @@ Struct Resources
::
%pr [mem 0x60000000-0x6fffffff flags 0x2200] or
+ [mem 0x60000000 flags 0x2200] or
[mem 0x0000000060000000-0x000000006fffffff flags 0x2200]
+ [mem 0x0000000060000000 flags 0x2200]
%pR [mem 0x60000000-0x6fffffff pref] or
+ [mem 0x60000000 pref] or
[mem 0x0000000060000000-0x000000006fffffff pref]
+ [mem 0x0000000060000000 pref]
For printing struct resources. The ``R`` and ``r`` specifiers result in a
-printed resource with (R) or without (r) a decoded flags member.
+printed resource with (R) or without (r) a decoded flags member. If start is
+equal to end only print the start value.
Passed by reference.
@@ -230,6 +236,19 @@ width of the CPU data path.
Passed by reference.
+Struct Range
+------------
+
+::
+
+ %pra [range 0x0000000060000000-0x000000006fffffff] or
+ [range 0x0000000060000000]
+
+For printing struct range. struct range holds an arbitrary range of u64
+values. If start is equal to end only print the start value.
+
+Passed by reference.
+
DMA address types dma_addr_t
----------------------------
@@ -502,7 +521,7 @@ Fwnode handles
%pfw[fP]
-For printing information on fwnode handles. The default is to print the full
+For printing information on an fwnode_handle. The default is to print the full
node name, including the path. The modifiers are functionally equivalent to
%pOF above.
@@ -528,11 +547,13 @@ Time and date
%pt[RT]s YYYY-mm-dd HH:MM:SS
%pt[RT]d YYYY-mm-dd
%pt[RT]t HH:MM:SS
- %pt[RT][dt][r][s]
+ %ptSp <seconds>.<nanoseconds>
+ %pt[RST][dt][r][s]
For printing date and time as represented by::
- R struct rtc_time structure
+ R content of struct rtc_time
+ S content of struct timespec64
T time64_t type
in human readable format.
@@ -544,6 +565,11 @@ The %pt[RT]s (space) will override ISO 8601 separator by using ' ' (space)
instead of 'T' (Capital T) between date and time. It won't have any effect
when date or time is omitted.
+The %ptSp is equivalent to %lld.%09ld for the content of the struct timespec64.
+When the other specifiers are given, it becomes the respective equivalent of
+%ptT[dt][r][s].%09ld. In other words, the seconds are being printed in
+the human readable format followed by a dot and nanoseconds.
+
Passed by reference.
struct clk
@@ -552,9 +578,8 @@ struct clk
::
%pC pll1
- %pCn pll1
-For printing struct clk structures. %pC and %pCn print the name of the clock
+For printing struct clk structures. %pC prints the name of the clock
(Common Clock Framework) or a unique 32-bit ID (legacy clock framework).
Passed by reference.
@@ -575,13 +600,12 @@ The field width is passed by value, the bitmap is passed by reference.
Helper macros cpumask_pr_args() and nodemask_pr_args() are available to ease
printing cpumask and nodemask.
-Flags bitfields such as page flags, page_type, gfp_flags
+Flags bitfields such as page flags and gfp_flags
--------------------------------------------------------
::
%pGp 0x17ffffc0002036(referenced|uptodate|lru|active|private|node=0|zone=2|lastcpupid=0x1fffff)
- %pGt 0xffffff7f(buddy)
%pGg GFP_USER|GFP_DMA32|GFP_NOWARN
%pGv read|exec|mayread|maywrite|mayexec|denywrite
@@ -590,7 +614,6 @@ would construct the value. The type of flags is given by the third
character. Currently supported are:
- p - [p]age flags, expects value of type (``unsigned long *``)
- - t - page [t]ype, expects value of type (``unsigned int *``)
- v - [v]ma_flags, expects value of type (``unsigned long *``)
- g - [g]fp_flags, expects value of type (``gfp_t *``)
@@ -631,6 +654,38 @@ Examples::
%p4cc Y10 little-endian (0x20303159)
%p4cc NV12 big-endian (0xb231564e)
+Generic FourCC code
+-------------------
+
+::
+ %p4c[h[R]lb] gP00 (0x67503030)
+
+Print a generic FourCC code, as both ASCII characters and its numerical
+value as hexadecimal.
+
+The generic FourCC code is always printed in the big-endian format,
+the most significant byte first. This is the opposite of V4L/DRM FourCCs.
+
+The additional ``h``, ``hR``, ``l``, and ``b`` specifiers define what
+endianness is used to load the stored bytes. The data might be interpreted
+using the host, reversed host byte order, little-endian, or big-endian.
+
+Passed by reference.
+
+Examples for a little-endian machine, given &(u32)0x67503030::
+
+ %p4ch gP00 (0x67503030)
+ %p4chR 00Pg (0x30305067)
+ %p4cl gP00 (0x67503030)
+ %p4cb 00Pg (0x30305067)
+
+Examples for a big-endian machine, given &(u32)0x67503030::
+
+ %p4ch gP00 (0x67503030)
+ %p4chR 00Pg (0x30305067)
+ %p4cl 00Pg (0x30305067)
+ %p4cb gP00 (0x67503030)
+
Rust
----
@@ -644,7 +699,7 @@ Do *not* use it from C.
Thanks
======
-If you add other %p extensions, please extend <lib/test_printf.c> with
-one or more test cases, if at all feasible.
+If you add other %p extensions, please extend <lib/tests/printf_kunit.c>
+with one or more test cases, if at all feasible.
Thank you for your cooperation and attention.
diff --git a/Documentation/core-api/printk-index.rst b/Documentation/core-api/printk-index.rst
index 3062f37d119b..1979c5dd32fe 100644
--- a/Documentation/core-api/printk-index.rst
+++ b/Documentation/core-api/printk-index.rst
@@ -4,7 +4,7 @@
Printk Index
============
-There are many ways how to monitor the state of the system. One important
+There are many ways to monitor the state of the system. One important
source of information is the system log. It provides a lot of information,
including more or less important warnings and error messages.
@@ -101,7 +101,7 @@ their own wrappers adding __printk_index_emit().
Only few subsystem specific wrappers have been updated so far,
for example, dev_printk(). As a result, the printk formats from
-some subsystes can be missing in the printk index.
+some subsystems can be missing in the printk index.
Subsystem specific prefix
diff --git a/Documentation/core-api/protection-keys.rst b/Documentation/core-api/protection-keys.rst
index bf28ac0401f3..7eb7c6023e09 100644
--- a/Documentation/core-api/protection-keys.rst
+++ b/Documentation/core-api/protection-keys.rst
@@ -12,7 +12,10 @@ Pkeys Userspace (PKU) is a feature which can be found on:
* Intel server CPUs, Skylake and later
* Intel client CPUs, Tiger Lake (11th Gen Core) and later
* Future AMD CPUs
+ * arm64 CPUs implementing the Permission Overlay Extension (FEAT_S1POE)
+x86_64
+======
Pkeys work by dedicating 4 previously Reserved bits in each page table entry to
a "protection key", giving 16 possible keys.
@@ -28,6 +31,22 @@ register. The feature is only available in 64-bit mode, even though there is
theoretically space in the PAE PTEs. These permissions are enforced on data
access only and have no effect on instruction fetches.
+arm64
+=====
+
+Pkeys use 3 bits in each page table entry, to encode a "protection key index",
+giving 8 possible keys.
+
+Protections for each key are defined with a per-CPU user-writable system
+register (POR_EL0). This is a 64-bit register encoding read, write and execute
+overlay permissions for each protection key index.
+
+Being a CPU register, POR_EL0 is inherently thread-local, potentially giving
+each thread a different set of protections from every other thread.
+
+Unlike x86_64, the protection key permissions also apply to instruction
+fetches.
+
Syscalls
========
@@ -38,11 +57,10 @@ There are 3 system calls which directly interact with pkeys::
int pkey_mprotect(unsigned long start, size_t len,
unsigned long prot, int pkey);
-Before a pkey can be used, it must first be allocated with
-pkey_alloc(). An application calls the WRPKRU instruction
-directly in order to change access permissions to memory covered
-with a key. In this example WRPKRU is wrapped by a C function
-called pkey_set().
+Before a pkey can be used, it must first be allocated with pkey_alloc(). An
+application writes to the architecture specific CPU register directly in order
+to change access permissions to memory covered with a key. In this example
+this is wrapped by a C function called pkey_set().
::
int real_prot = PROT_READ|PROT_WRITE;
@@ -64,9 +82,9 @@ is no longer in use::
munmap(ptr, PAGE_SIZE);
pkey_free(pkey);
-.. note:: pkey_set() is a wrapper for the RDPKRU and WRPKRU instructions.
- An example implementation can be found in
- tools/testing/selftests/x86/protection_keys.c.
+.. note:: pkey_set() is a wrapper around writing to the CPU register.
+ Example implementations can be found in
+ tools/testing/selftests/mm/pkey-{arm64,powerpc,x86}.h
Behavior
========
@@ -96,3 +114,7 @@ with a read()::
The kernel will send a SIGSEGV in both cases, but si_code will be set
to SEGV_PKERR when violating protection keys versus SEGV_ACCERR when
the plain mprotect() permissions are violated.
+
+Note that kernel accesses from a kthread (such as io_uring) will use a default
+value for the protection key register and so will not be consistent with
+userspace's value of the register or mprotect().
diff --git a/Documentation/core-api/real-time/architecture-porting.rst b/Documentation/core-api/real-time/architecture-porting.rst
new file mode 100644
index 000000000000..d822fac29922
--- /dev/null
+++ b/Documentation/core-api/real-time/architecture-porting.rst
@@ -0,0 +1,109 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=============================================
+Porting an architecture to support PREEMPT_RT
+=============================================
+
+:Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+
+This list outlines the architecture specific requirements that must be
+implemented in order to enable PREEMPT_RT. Once all required features are
+implemented, ARCH_SUPPORTS_RT can be selected in architecture’s Kconfig to make
+PREEMPT_RT selectable.
+Many prerequisites (genirq support for example) are enforced by the common code
+and are omitted here.
+
+The optional features are not strictly required but it is worth to consider
+them.
+
+Requirements
+------------
+
+Forced threaded interrupts
+ CONFIG_IRQ_FORCED_THREADING must be selected. Any interrupts that must
+ remain in hard-IRQ context must be marked with IRQF_NO_THREAD. This
+ requirement applies for instance to clocksource event interrupts,
+ perf interrupts and cascading interrupt-controller handlers.
+
+PREEMPTION support
+ Kernel preemption must be supported and requires that
+ CONFIG_ARCH_NO_PREEMPT remain unselected. Scheduling requests, such as those
+ issued from an interrupt or other exception handler, must be processed
+ immediately.
+
+POSIX CPU timers and KVM
+ POSIX CPU timers must expire from thread context rather than directly within
+ the timer interrupt. This behavior is enabled by setting the configuration
+ option CONFIG_HAVE_POSIX_CPU_TIMERS_TASK_WORK.
+ When KVM is enabled, CONFIG_KVM_XFER_TO_GUEST_WORK must also be set to ensure
+ that any pending work, such as POSIX timer expiration, is handled before
+ transitioning into guest mode.
+
+Hard-IRQ and Soft-IRQ stacks
+ Soft interrupts are handled in the thread context in which they are raised. If
+ a soft interrupt is triggered from hard-IRQ context, its execution is deferred
+ to the ksoftirqd thread. Preemption is never disabled during soft interrupt
+ handling, which makes soft interrupts preemptible.
+ If an architecture provides a custom __do_softirq() implementation that uses a
+ separate stack, it must select CONFIG_HAVE_SOFTIRQ_ON_OWN_STACK. The
+ functionality should only be enabled when CONFIG_SOFTIRQ_ON_OWN_STACK is set.
+
+FPU and SIMD access in kernel mode
+ FPU and SIMD registers are typically not used in kernel mode and are therefore
+ not saved during kernel preemption. As a result, any kernel code that uses
+ these registers must be enclosed within a kernel_fpu_begin() and
+ kernel_fpu_end() section.
+ The kernel_fpu_begin() function usually invokes local_bh_disable() to prevent
+ interruptions from softirqs and to disable regular preemption. This allows the
+ protected code to run safely in both thread and softirq contexts.
+ On PREEMPT_RT kernels, however, kernel_fpu_begin() must not call
+ local_bh_disable(). Instead, it should use preempt_disable(), since softirqs
+ are always handled in thread context under PREEMPT_RT. In this case, disabling
+ preemption alone is sufficient.
+ The crypto subsystem operates on memory pages and requires users to "walk and
+ map" these pages while processing a request. This operation must occur outside
+ the kernel_fpu_begin()/ kernel_fpu_end() section because it requires preemption
+ to be enabled. These preemption points are generally sufficient to avoid
+ excessive scheduling latency.
+
+Exception handlers
+ Exception handlers, such as the page fault handler, typically enable interrupts
+ early, before invoking any generic code to process the exception. This is
+ necessary because handling a page fault may involve operations that can sleep.
+ Enabling interrupts is especially important on PREEMPT_RT, where certain
+ locks, such as spinlock_t, become sleepable. For example, handling an
+ invalid opcode may result in sending a SIGILL signal to the user task. A
+ debug excpetion will send a SIGTRAP signal.
+ In both cases, if the exception occurred in user space, it is safe to enable
+ interrupts early. Sending a signal requires both interrupts and kernel
+ preemption to be enabled.
+
+Optional features
+-----------------
+
+Timer and clocksource
+ A high-resolution clocksource and clockevents device are recommended. The
+ clockevents device should support the CLOCK_EVT_FEAT_ONESHOT feature for
+ optimal timer behavior. In most cases, microsecond-level accuracy is
+ sufficient
+
+Lazy preemption
+ This mechanism allows an in-kernel scheduling request for non-real-time tasks
+ to be delayed until the task is about to return to user space. It helps avoid
+ preempting a task that holds a sleeping lock at the time of the scheduling
+ request.
+ With CONFIG_GENERIC_IRQ_ENTRY enabled, supporting this feature requires
+ defining a bit for TIF_NEED_RESCHED_LAZY, preferably near TIF_NEED_RESCHED.
+
+Serial console with NBCON
+ With PREEMPT_RT enabled, all console output is handled by a dedicated thread
+ rather than directly from the context in which printk() is invoked. This design
+ allows printk() to be safely used in atomic contexts.
+ However, this also means that if the kernel crashes and cannot switch to the
+ printing thread, no output will be visible preventing the system from printing
+ its final messages.
+ There are exceptions for immediate output, such as during panic() handling. To
+ support this, the console driver must implement new-style lock handling. This
+ involves setting the CON_NBCON flag in console::flags and providing
+ implementations for the write_atomic, write_thread, device_lock, and
+ device_unlock callbacks.
diff --git a/Documentation/core-api/real-time/differences.rst b/Documentation/core-api/real-time/differences.rst
new file mode 100644
index 000000000000..83ec9aa1c61a
--- /dev/null
+++ b/Documentation/core-api/real-time/differences.rst
@@ -0,0 +1,242 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+===========================
+How realtime kernels differ
+===========================
+
+:Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+
+Preface
+=======
+
+With forced-threaded interrupts and sleeping spin locks, code paths that
+previously caused long scheduling latencies have been made preemptible and
+moved into process context. This allows the scheduler to manage them more
+effectively and respond to higher-priority tasks with reduced latency.
+
+The following chapters provide an overview of key differences between a
+PREEMPT_RT kernel and a standard, non-PREEMPT_RT kernel.
+
+Locking
+=======
+
+Spinning locks such as spinlock_t are used to provide synchronization for data
+structures accessed from both interrupt context and process context. For this
+reason, locking functions are also available with the _irq() or _irqsave()
+suffixes, which disable interrupts before acquiring the lock. This ensures that
+the lock can be safely acquired in process context when interrupts are enabled.
+
+However, on a PREEMPT_RT system, interrupts are forced-threaded and no longer
+run in hard IRQ context. As a result, there is no need to disable interrupts as
+part of the locking procedure when using spinlock_t.
+
+For low-level core components such as interrupt handling, the scheduler, or the
+timer subsystem the kernel uses raw_spinlock_t. This lock type preserves
+traditional semantics: it disables preemption and, when used with _irq() or
+_irqsave(), also disables interrupts. This ensures proper synchronization in
+critical sections that must remain non-preemptible or with interrupts disabled.
+
+Execution context
+=================
+
+Interrupt handling in a PREEMPT_RT system is invoked in process context through
+the use of threaded interrupts. Other parts of the kernel also shift their
+execution into threaded context by different mechanisms. The goal is to keep
+execution paths preemptible, allowing the scheduler to interrupt them when a
+higher-priority task needs to run.
+
+Below is an overview of the kernel subsystems involved in this transition to
+threaded, preemptible execution.
+
+Interrupt handling
+------------------
+
+All interrupts are forced-threaded in a PREEMPT_RT system. The exceptions are
+interrupts that are requested with the IRQF_NO_THREAD, IRQF_PERCPU, or
+IRQF_ONESHOT flags.
+
+The IRQF_ONESHOT flag is used together with threaded interrupts, meaning those
+registered using request_threaded_irq() and providing only a threaded handler.
+Its purpose is to keep the interrupt line masked until the threaded handler has
+completed.
+
+If a primary handler is also provided in this case, it is essential that the
+handler does not acquire any sleeping locks, as it will not be threaded. The
+handler should be minimal and must avoid introducing delays, such as
+busy-waiting on hardware registers.
+
+
+Soft interrupts, bottom half handling
+-------------------------------------
+
+Soft interrupts are raised by the interrupt handler and are executed after the
+handler returns. Since they run in thread context, they can be preempted by
+other threads. Do not assume that softirq context runs with preemption
+disabled. This means you must not rely on mechanisms like local_bh_disable() in
+process context to protect per-CPU variables. Because softirq handlers are
+preemptible under PREEMPT_RT, this approach does not provide reliable
+synchronization.
+
+If this kind of protection is required for performance reasons, consider using
+local_lock_nested_bh(). On non-PREEMPT_RT kernels, this allows lockdep to
+verify that bottom halves are disabled. On PREEMPT_RT systems, it adds the
+necessary locking to ensure proper protection.
+
+Using local_lock_nested_bh() also makes the locking scope explicit and easier
+for readers and maintainers to understand.
+
+
+per-CPU variables
+-----------------
+
+Protecting access to per-CPU variables solely by using preempt_disable() should
+be avoided, especially if the critical section has unbounded runtime or may
+call APIs that can sleep.
+
+If using a spinlock_t is considered too costly for performance reasons,
+consider using local_lock_t. On non-PREEMPT_RT configurations, this introduces
+no runtime overhead when lockdep is disabled. With lockdep enabled, it verifies
+that the lock is only acquired in process context and never from softirq or
+hard IRQ context.
+
+On a PREEMPT_RT kernel, local_lock_t is implemented using a per-CPU spinlock_t,
+which provides safe local protection for per-CPU data while keeping the system
+preemptible.
+
+Because spinlock_t on PREEMPT_RT does not disable preemption, it cannot be used
+to protect per-CPU data by relying on implicit preemption disabling. If this
+inherited preemption disabling is essential and if local_lock_t cannot be used
+due to performance constraints, brevity of the code, or abstraction boundaries
+within an API then preempt_disable_nested() may be a suitable alternative. On
+non-PREEMPT_RT kernels, it verifies with lockdep that preemption is already
+disabled. On PREEMPT_RT, it explicitly disables preemption.
+
+Timers
+------
+
+By default, an hrtimer is executed in hard interrupt context. The exception is
+timers initialized with the HRTIMER_MODE_SOFT flag, which are executed in
+softirq context.
+
+On a PREEMPT_RT kernel, this behavior is reversed: hrtimers are executed in
+softirq context by default, typically within the ktimersd thread. This thread
+runs at the lowest real-time priority, ensuring it executes before any
+SCHED_OTHER tasks but does not interfere with higher-priority real-time
+threads. To explicitly request execution in hard interrupt context on
+PREEMPT_RT, the timer must be marked with the HRTIMER_MODE_HARD flag.
+
+Memory allocation
+-----------------
+
+The memory allocation APIs, such as kmalloc() and alloc_pages(), require a
+gfp_t flag to indicate the allocation context. On non-PREEMPT_RT kernels, it is
+necessary to use GFP_ATOMIC when allocating memory from interrupt context or
+from sections where preemption is disabled. This is because the allocator must
+not sleep in these contexts waiting for memory to become available.
+
+However, this approach does not work on PREEMPT_RT kernels. The memory
+allocator in PREEMPT_RT uses sleeping locks internally, which cannot be
+acquired when preemption is disabled. Fortunately, this is generally not a
+problem, because PREEMPT_RT moves most contexts that would traditionally run
+with preemption or interrupts disabled into threaded context, where sleeping is
+allowed.
+
+What remains problematic is code that explicitly disables preemption or
+interrupts. In such cases, memory allocation must be performed outside the
+critical section.
+
+This restriction also applies to memory deallocation routines such as kfree()
+and free_pages(), which may also involve internal locking and must not be
+called from non-preemptible contexts.
+
+IRQ work
+--------
+
+The irq_work API provides a mechanism to schedule a callback in interrupt
+context. It is designed for use in contexts where traditional scheduling is not
+possible, such as from within NMI handlers or from inside the scheduler, where
+using a workqueue would be unsafe.
+
+On non-PREEMPT_RT systems, all irq_work items are executed immediately in
+interrupt context. Items marked with IRQ_WORK_LAZY are deferred until the next
+timer tick but are still executed in interrupt context.
+
+On PREEMPT_RT systems, the execution model changes. Because irq_work callbacks
+may acquire sleeping locks or have unbounded execution time, they are handled
+in thread context by a per-CPU irq_work kernel thread. This thread runs at the
+lowest real-time priority, ensuring it executes before any SCHED_OTHER tasks
+but does not interfere with higher-priority real-time threads.
+
+The exception are work items marked with IRQ_WORK_HARD_IRQ, which are still
+executed in hard interrupt context. Lazy items (IRQ_WORK_LAZY) continue to be
+deferred until the next timer tick and are also executed by the irq_work/
+thread.
+
+RCU callbacks
+-------------
+
+RCU callbacks are invoked by default in softirq context. Their execution is
+important because, depending on the use case, they either free memory or ensure
+progress in state transitions. Running these callbacks as part of the softirq
+chain can lead to undesired situations, such as contention for CPU resources
+with other SCHED_OTHER tasks when executed within ksoftirqd.
+
+To avoid running callbacks in softirq context, the RCU subsystem provides a
+mechanism to execute them in process context instead. This behavior can be
+enabled by setting the boot command-line parameter rcutree.use_softirq=0. This
+setting is enforced in kernels configured with PREEMPT_RT.
+
+Spin until ready
+================
+
+The "spin until ready" pattern involves repeatedly checking (spinning on) the
+state of a data structure until it becomes available. This pattern assumes that
+preemption, soft interrupts, or interrupts are disabled. If the data structure
+is marked busy, it is presumed to be in use by another CPU, and spinning should
+eventually succeed as that CPU makes progress.
+
+Some examples are hrtimer_cancel() or timer_delete_sync(). These functions
+cancel timers that execute with interrupts or soft interrupts disabled. If a
+thread attempts to cancel a timer and finds it active, spinning until the
+callback completes is safe because the callback can only run on another CPU and
+will eventually finish.
+
+On PREEMPT_RT kernels, however, timer callbacks run in thread context. This
+introduces a challenge: a higher-priority thread attempting to cancel the timer
+may preempt the timer callback thread. Since the scheduler cannot migrate the
+callback thread to another CPU due to affinity constraints, spinning can result
+in livelock even on multiprocessor systems.
+
+To avoid this, both the canceling and callback sides must use a handshake
+mechanism that supports priority inheritance. This allows the canceling thread
+to suspend until the callback completes, ensuring forward progress without
+risking livelock.
+
+In order to solve the problem at the API level, the sequence locks were extended
+to allow a proper handover between the the spinning reader and the maybe
+blocked writer.
+
+Sequence locks
+--------------
+
+Sequence counters and sequential locks are documented in
+Documentation/locking/seqlock.rst.
+
+The interface has been extended to ensure proper preemption states for the
+writer and spinning reader contexts. This is achieved by embedding the writer
+serialization lock directly into the sequence counter type, resulting in
+composite types such as seqcount_spinlock_t or seqcount_mutex_t.
+
+These composite types allow readers to detect an ongoing write and actively
+boost the writer’s priority to help it complete its update instead of spinning
+and waiting for its completion.
+
+If the plain seqcount_t is used, extra care must be taken to synchronize the
+reader with the writer during updates. The writer must ensure its update is
+serialized and non-preemptible relative to the reader. This cannot be achieved
+using a regular spinlock_t because spinlock_t on PREEMPT_RT does not disable
+preemption. In such cases, using seqcount_spinlock_t is the preferred solution.
+
+However, if there is no spinning involved i.e., if the reader only needs to
+detect whether a write has started and not serialize against it then using
+seqcount_t is reasonable.
diff --git a/Documentation/core-api/real-time/index.rst b/Documentation/core-api/real-time/index.rst
new file mode 100644
index 000000000000..7e14c4ea3d59
--- /dev/null
+++ b/Documentation/core-api/real-time/index.rst
@@ -0,0 +1,16 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=====================
+Real-time preemption
+=====================
+
+This documentation is intended for Linux kernel developers and contributors
+interested in the inner workings of PREEMPT_RT. It explains key concepts and
+the required changes compared to a non-PREEMPT_RT configuration.
+
+.. toctree::
+ :maxdepth: 2
+
+ theory
+ differences
+ architecture-porting
diff --git a/Documentation/core-api/real-time/theory.rst b/Documentation/core-api/real-time/theory.rst
new file mode 100644
index 000000000000..43d0120737f8
--- /dev/null
+++ b/Documentation/core-api/real-time/theory.rst
@@ -0,0 +1,116 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=====================
+Theory of operation
+=====================
+
+:Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+
+Preface
+=======
+
+PREEMPT_RT transforms the Linux kernel into a real-time kernel. It achieves
+this by replacing locking primitives, such as spinlock_t, with a preemptible
+and priority-inheritance aware implementation known as rtmutex, and by enforcing
+the use of threaded interrupts. As a result, the kernel becomes fully
+preemptible, with the exception of a few critical code paths, including entry
+code, the scheduler, and low-level interrupt handling routines.
+
+This transformation places the majority of kernel execution contexts under the
+control of the scheduler and significantly increasing the number of preemption
+points. Consequently, it reduces the latency between a high-priority task
+becoming runnable and its actual execution on the CPU.
+
+Scheduling
+==========
+
+The core principles of Linux scheduling and the associated user-space API are
+documented in the man page sched(7)
+`sched(7) <https://man7.org/linux/man-pages/man7/sched.7.html>`_.
+By default, the Linux kernel uses the SCHED_OTHER scheduling policy. Under
+this policy, a task is preempted when the scheduler determines that it has
+consumed a fair share of CPU time relative to other runnable tasks. However,
+the policy does not guarantee immediate preemption when a new SCHED_OTHER task
+becomes runnable. The currently running task may continue executing.
+
+This behavior differs from that of real-time scheduling policies such as
+SCHED_FIFO. When a task with a real-time policy becomes runnable, the
+scheduler immediately selects it for execution if it has a higher priority than
+the currently running task. The task continues to run until it voluntarily
+yields the CPU, typically by blocking on an event.
+
+Sleeping spin locks
+===================
+
+The various lock types and their behavior under real-time configurations are
+described in detail in Documentation/locking/locktypes.rst.
+In a non-PREEMPT_RT configuration, a spinlock_t is acquired by first disabling
+preemption and then actively spinning until the lock becomes available. Once
+the lock is released, preemption is enabled. From a real-time perspective,
+this approach is undesirable because disabling preemption prevents the
+scheduler from switching to a higher-priority task, potentially increasing
+latency.
+
+To address this, PREEMPT_RT replaces spinning locks with sleeping spin locks
+that do not disable preemption. On PREEMPT_RT, spinlock_t is implemented using
+rtmutex. Instead of spinning, a task attempting to acquire a contended lock
+disables CPU migration, donates its priority to the lock owner (priority
+inheritance), and voluntarily schedules out while waiting for the lock to
+become available.
+
+Disabling CPU migration provides the same effect as disabling preemption, while
+still allowing preemption and ensuring that the task continues to run on the
+same CPU while holding a sleeping lock.
+
+Priority inheritance
+====================
+
+Lock types such as spinlock_t and mutex_t in a PREEMPT_RT enabled kernel are
+implemented on top of rtmutex, which provides support for priority inheritance
+(PI). When a task blocks on such a lock, the PI mechanism temporarily
+propagates the blocked task’s scheduling parameters to the lock owner.
+
+For example, if a SCHED_FIFO task A blocks on a lock currently held by a
+SCHED_OTHER task B, task A’s scheduling policy and priority are temporarily
+inherited by task B. After this inheritance, task A is put to sleep while
+waiting for the lock, and task B effectively becomes the highest-priority task
+in the system. This allows B to continue executing, make progress, and
+eventually release the lock.
+
+Once B releases the lock, it reverts to its original scheduling parameters, and
+task A can resume execution.
+
+Threaded interrupts
+===================
+
+Interrupt handlers are another source of code that executes with preemption
+disabled and outside the control of the scheduler. To bring interrupt handling
+under scheduler control, PREEMPT_RT enforces threaded interrupt handlers.
+
+With forced threading, interrupt handling is split into two stages. The first
+stage, the primary handler, is executed in IRQ context with interrupts disabled.
+Its sole responsibility is to wake the associated threaded handler. The second
+stage, the threaded handler, is the function passed to request_irq() as the
+interrupt handler. It runs in process context, scheduled by the kernel.
+
+From waking the interrupt thread until threaded handling is completed, the
+interrupt source is masked in the interrupt controller. This ensures that the
+device interrupt remains pending but does not retrigger the CPU, allowing the
+system to exit IRQ context and handle the interrupt in a scheduled thread.
+
+By default, the threaded handler executes with the SCHED_FIFO scheduling policy
+and a priority of 50 (MAX_RT_PRIO / 2), which is midway between the minimum and
+maximum real-time priorities.
+
+If the threaded interrupt handler raises any soft interrupts during its
+execution, those soft interrupt routines are invoked after the threaded handler
+completes, within the same thread. Preemption remains enabled during the
+execution of the soft interrupt handler.
+
+Summary
+=======
+
+By using sleeping locks and forced-threaded interrupts, PREEMPT_RT
+significantly reduces sections of code where interrupts or preemption is
+disabled, allowing the scheduler to preempt the current execution context and
+switch to a higher-priority task.
diff --git a/Documentation/core-api/refcount-vs-atomic.rst b/Documentation/core-api/refcount-vs-atomic.rst
index 79a009ce11df..94e628c1eb49 100644
--- a/Documentation/core-api/refcount-vs-atomic.rst
+++ b/Documentation/core-api/refcount-vs-atomic.rst
@@ -86,7 +86,19 @@ Memory ordering guarantee changes:
* none (both fully unordered)
-case 2) - increment-based ops that return no value
+case 2) - non-"Read/Modify/Write" (RMW) ops with release ordering
+-----------------------------------------------------------------
+
+Function changes:
+
+ * atomic_set_release() --> refcount_set_release()
+
+Memory ordering guarantee changes:
+
+ * none (both provide RELEASE ordering)
+
+
+case 3) - increment-based ops that return no value
--------------------------------------------------
Function changes:
@@ -98,7 +110,7 @@ Memory ordering guarantee changes:
* none (both fully unordered)
-case 3) - decrement-based RMW ops that return no value
+case 4) - decrement-based RMW ops that return no value
------------------------------------------------------
Function changes:
@@ -110,7 +122,7 @@ Memory ordering guarantee changes:
* fully unordered --> RELEASE ordering
-case 4) - increment-based RMW ops that return a value
+case 5) - increment-based RMW ops that return a value
-----------------------------------------------------
Function changes:
@@ -126,7 +138,20 @@ Memory ordering guarantees changes:
result of obtaining pointer to the object!
-case 5) - generic dec/sub decrement-based RMW ops that return a value
+case 6) - increment-based RMW ops with acquire ordering that return a value
+---------------------------------------------------------------------------
+
+Function changes:
+
+ * atomic_inc_not_zero() --> refcount_inc_not_zero_acquire()
+ * no atomic counterpart --> refcount_add_not_zero_acquire()
+
+Memory ordering guarantees changes:
+
+ * fully ordered --> ACQUIRE ordering on success
+
+
+case 7) - generic dec/sub decrement-based RMW ops that return a value
---------------------------------------------------------------------
Function changes:
@@ -139,7 +164,7 @@ Memory ordering guarantees changes:
* fully ordered --> RELEASE ordering + ACQUIRE ordering on success
-case 6) other decrement-based RMW ops that return a value
+case 8) other decrement-based RMW ops that return a value
---------------------------------------------------------
Function changes:
@@ -154,7 +179,7 @@ Memory ordering guarantees changes:
.. note:: atomic_add_unless() only provides full order on success.
-case 7) - lock-based RMW
+case 9) - lock-based RMW
------------------------
Function changes:
diff --git a/Documentation/core-api/swiotlb.rst b/Documentation/core-api/swiotlb.rst
new file mode 100644
index 000000000000..9e0fe027dd3b
--- /dev/null
+++ b/Documentation/core-api/swiotlb.rst
@@ -0,0 +1,321 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+===============
+DMA and swiotlb
+===============
+
+swiotlb is a memory buffer allocator used by the Linux kernel DMA layer. It is
+typically used when a device doing DMA can't directly access the target memory
+buffer because of hardware limitations or other requirements. In such a case,
+the DMA layer calls swiotlb to allocate a temporary memory buffer that conforms
+to the limitations. The DMA is done to/from this temporary memory buffer, and
+the CPU copies the data between the temporary buffer and the original target
+memory buffer. This approach is generically called "bounce buffering", and the
+temporary memory buffer is called a "bounce buffer".
+
+Device drivers don't interact directly with swiotlb. Instead, drivers inform
+the DMA layer of the DMA attributes of the devices they are managing, and use
+the normal DMA map, unmap, and sync APIs when programming a device to do DMA.
+These APIs use the device DMA attributes and kernel-wide settings to determine
+if bounce buffering is necessary. If so, the DMA layer manages the allocation,
+freeing, and sync'ing of bounce buffers. Since the DMA attributes are per
+device, some devices in a system may use bounce buffering while others do not.
+
+Because the CPU copies data between the bounce buffer and the original target
+memory buffer, doing bounce buffering is slower than doing DMA directly to the
+original memory buffer, and it consumes more CPU resources. So it is used only
+when necessary for providing DMA functionality.
+
+Usage Scenarios
+---------------
+swiotlb was originally created to handle DMA for devices with addressing
+limitations. As physical memory sizes grew beyond 4 GiB, some devices could
+only provide 32-bit DMA addresses. By allocating bounce buffer memory below
+the 4 GiB line, these devices with addressing limitations could still work and
+do DMA.
+
+More recently, Confidential Computing (CoCo) VMs have the guest VM's memory
+encrypted by default, and the memory is not accessible by the host hypervisor
+and VMM. For the host to do I/O on behalf of the guest, the I/O must be
+directed to guest memory that is unencrypted. CoCo VMs set a kernel-wide option
+to force all DMA I/O to use bounce buffers, and the bounce buffer memory is set
+up as unencrypted. The host does DMA I/O to/from the bounce buffer memory, and
+the Linux kernel DMA layer does "sync" operations to cause the CPU to copy the
+data to/from the original target memory buffer. The CPU copying bridges between
+the unencrypted and the encrypted memory. This use of bounce buffers allows
+device drivers to "just work" in a CoCo VM, with no modifications
+needed to handle the memory encryption complexity.
+
+Other edge case scenarios arise for bounce buffers. For example, when IOMMU
+mappings are set up for a DMA operation to/from a device that is considered
+"untrusted", the device should be given access only to the memory containing
+the data being transferred. But if that memory occupies only part of an IOMMU
+granule, other parts of the granule may contain unrelated kernel data. Since
+IOMMU access control is per-granule, the untrusted device can gain access to
+the unrelated kernel data. This problem is solved by bounce buffering the DMA
+operation and ensuring that unused portions of the bounce buffers do not
+contain any unrelated kernel data.
+
+Core Functionality
+------------------
+The primary swiotlb APIs are swiotlb_tbl_map_single() and
+swiotlb_tbl_unmap_single(). The "map" API allocates a bounce buffer of a
+specified size in bytes and returns the physical address of the buffer. The
+buffer memory is physically contiguous. The expectation is that the DMA layer
+maps the physical memory address to a DMA address, and returns the DMA address
+to the driver for programming into the device. If a DMA operation specifies
+multiple memory buffer segments, a separate bounce buffer must be allocated for
+each segment. swiotlb_tbl_map_single() always does a "sync" operation (i.e., a
+CPU copy) to initialize the bounce buffer to match the contents of the original
+buffer.
+
+swiotlb_tbl_unmap_single() does the reverse. If the DMA operation might have
+updated the bounce buffer memory and DMA_ATTR_SKIP_CPU_SYNC is not set, the
+unmap does a "sync" operation to cause a CPU copy of the data from the bounce
+buffer back to the original buffer. Then the bounce buffer memory is freed.
+
+swiotlb also provides "sync" APIs that correspond to the dma_sync_*() APIs that
+a driver may use when control of a buffer transitions between the CPU and the
+device. The swiotlb "sync" APIs cause a CPU copy of the data between the
+original buffer and the bounce buffer. Like the dma_sync_*() APIs, the swiotlb
+"sync" APIs support doing a partial sync, where only a subset of the bounce
+buffer is copied to/from the original buffer.
+
+Core Functionality Constraints
+------------------------------
+The swiotlb map/unmap/sync APIs must operate without blocking, as they are
+called by the corresponding DMA APIs which may run in contexts that cannot
+block. Hence the default memory pool for swiotlb allocations must be
+pre-allocated at boot time (but see Dynamic swiotlb below). Because swiotlb
+allocations must be physically contiguous, the entire default memory pool is
+allocated as a single contiguous block.
+
+The need to pre-allocate the default swiotlb pool creates a boot-time tradeoff.
+The pool should be large enough to ensure that bounce buffer requests can
+always be satisfied, as the non-blocking requirement means requests can't wait
+for space to become available. But a large pool potentially wastes memory, as
+this pre-allocated memory is not available for other uses in the system. The
+tradeoff is particularly acute in CoCo VMs that use bounce buffers for all DMA
+I/O. These VMs use a heuristic to set the default pool size to ~6% of memory,
+with a max of 1 GiB, which has the potential to be very wasteful of memory.
+Conversely, the heuristic might produce a size that is insufficient, depending
+on the I/O patterns of the workload in the VM. The dynamic swiotlb feature
+described below can help, but has limitations. Better management of the swiotlb
+default memory pool size remains an open issue.
+
+A single allocation from swiotlb is limited to IO_TLB_SIZE * IO_TLB_SEGSIZE
+bytes, which is 256 KiB with current definitions. When a device's DMA settings
+are such that the device might use swiotlb, the maximum size of a DMA segment
+must be limited to that 256 KiB. This value is communicated to higher-level
+kernel code via dma_map_mapping_size() and swiotlb_max_mapping_size(). If the
+higher-level code fails to account for this limit, it may make requests that
+are too large for swiotlb, and get a "swiotlb full" error.
+
+A key device DMA setting is "min_align_mask", which is a power of 2 minus 1
+so that some number of low order bits are set, or it may be zero. swiotlb
+allocations ensure these min_align_mask bits of the physical address of the
+bounce buffer match the same bits in the address of the original buffer. When
+min_align_mask is non-zero, it may produce an "alignment offset" in the address
+of the bounce buffer that slightly reduces the maximum size of an allocation.
+This potential alignment offset is reflected in the value returned by
+swiotlb_max_mapping_size(), which can show up in places like
+/sys/block/<device>/queue/max_sectors_kb. For example, if a device does not use
+swiotlb, max_sectors_kb might be 512 KiB or larger. If a device might use
+swiotlb, max_sectors_kb will be 256 KiB. When min_align_mask is non-zero,
+max_sectors_kb might be even smaller, such as 252 KiB.
+
+swiotlb_tbl_map_single() also takes an "alloc_align_mask" parameter. This
+parameter specifies the allocation of bounce buffer space must start at a
+physical address with the alloc_align_mask bits set to zero. But the actual
+bounce buffer might start at a larger address if min_align_mask is non-zero.
+Hence there may be pre-padding space that is allocated prior to the start of
+the bounce buffer. Similarly, the end of the bounce buffer is rounded up to an
+alloc_align_mask boundary, potentially resulting in post-padding space. Any
+pre-padding or post-padding space is not initialized by swiotlb code. The
+"alloc_align_mask" parameter is used by IOMMU code when mapping for untrusted
+devices. It is set to the granule size - 1 so that the bounce buffer is
+allocated entirely from granules that are not used for any other purpose.
+
+Data structures concepts
+------------------------
+Memory used for swiotlb bounce buffers is allocated from overall system memory
+as one or more "pools". The default pool is allocated during system boot with a
+default size of 64 MiB. The default pool size may be modified with the
+"swiotlb=" kernel boot line parameter. The default size may also be adjusted
+due to other conditions, such as running in a CoCo VM, as described above. If
+CONFIG_SWIOTLB_DYNAMIC is enabled, additional pools may be allocated later in
+the life of the system. Each pool must be a contiguous range of physical
+memory. The default pool is allocated below the 4 GiB physical address line so
+it works for devices that can only address 32-bits of physical memory (unless
+architecture-specific code provides the SWIOTLB_ANY flag). In a CoCo VM, the
+pool memory must be decrypted before swiotlb is used.
+
+Each pool is divided into "slots" of size IO_TLB_SIZE, which is 2 KiB with
+current definitions. IO_TLB_SEGSIZE contiguous slots (128 slots) constitute
+what might be called a "slot set". When a bounce buffer is allocated, it
+occupies one or more contiguous slots. A slot is never shared by multiple
+bounce buffers. Furthermore, a bounce buffer must be allocated from a single
+slot set, which leads to the maximum bounce buffer size being IO_TLB_SIZE *
+IO_TLB_SEGSIZE. Multiple smaller bounce buffers may co-exist in a single slot
+set if the alignment and size constraints can be met.
+
+Slots are also grouped into "areas", with the constraint that a slot set exists
+entirely in a single area. Each area has its own spin lock that must be held to
+manipulate the slots in that area. The division into areas avoids contending
+for a single global spin lock when swiotlb is heavily used, such as in a CoCo
+VM. The number of areas defaults to the number of CPUs in the system for
+maximum parallelism, but since an area can't be smaller than IO_TLB_SEGSIZE
+slots, it might be necessary to assign multiple CPUs to the same area. The
+number of areas can also be set via the "swiotlb=" kernel boot parameter.
+
+When allocating a bounce buffer, if the area associated with the calling CPU
+does not have enough free space, areas associated with other CPUs are tried
+sequentially. For each area tried, the area's spin lock must be obtained before
+trying an allocation, so contention may occur if swiotlb is relatively busy
+overall. But an allocation request does not fail unless all areas do not have
+enough free space.
+
+IO_TLB_SIZE, IO_TLB_SEGSIZE, and the number of areas must all be powers of 2 as
+the code uses shifting and bit masking to do many of the calculations. The
+number of areas is rounded up to a power of 2 if necessary to meet this
+requirement.
+
+The default pool is allocated with PAGE_SIZE alignment. If an alloc_align_mask
+argument to swiotlb_tbl_map_single() specifies a larger alignment, one or more
+initial slots in each slot set might not meet the alloc_align_mask criterium.
+Because a bounce buffer allocation can't cross a slot set boundary, eliminating
+those initial slots effectively reduces the max size of a bounce buffer.
+Currently, there's no problem because alloc_align_mask is set based on IOMMU
+granule size, and granules cannot be larger than PAGE_SIZE. But if that were to
+change in the future, the initial pool allocation might need to be done with
+alignment larger than PAGE_SIZE.
+
+Dynamic swiotlb
+---------------
+When CONFIG_SWIOTLB_DYNAMIC is enabled, swiotlb can do on-demand expansion of
+the amount of memory available for allocation as bounce buffers. If a bounce
+buffer request fails due to lack of available space, an asynchronous background
+task is kicked off to allocate memory from general system memory and turn it
+into an swiotlb pool. Creating an additional pool must be done asynchronously
+because the memory allocation may block, and as noted above, swiotlb requests
+are not allowed to block. Once the background task is kicked off, the bounce
+buffer request creates a "transient pool" to avoid returning an "swiotlb full"
+error. A transient pool has the size of the bounce buffer request, and is
+deleted when the bounce buffer is freed. Memory for this transient pool comes
+from the general system memory atomic pool so that creation does not block.
+Creating a transient pool has relatively high cost, particularly in a CoCo VM
+where the memory must be decrypted, so it is done only as a stopgap until the
+background task can add another non-transient pool.
+
+Adding a dynamic pool has limitations. Like with the default pool, the memory
+must be physically contiguous, so the size is limited to MAX_PAGE_ORDER pages
+(e.g., 4 MiB on a typical x86 system). Due to memory fragmentation, a max size
+allocation may not be available. The dynamic pool allocator tries smaller sizes
+until it succeeds, but with a minimum size of 1 MiB. Given sufficient system
+memory fragmentation, dynamically adding a pool might not succeed at all.
+
+The number of areas in a dynamic pool may be different from the number of areas
+in the default pool. Because the new pool size is typically a few MiB at most,
+the number of areas will likely be smaller. For example, with a new pool size
+of 4 MiB and the 256 KiB minimum area size, only 16 areas can be created. If
+the system has more than 16 CPUs, multiple CPUs must share an area, creating
+more lock contention.
+
+New pools added via dynamic swiotlb are linked together in a linear list.
+swiotlb code frequently must search for the pool containing a particular
+swiotlb physical address, so that search is linear and not performant with a
+large number of dynamic pools. The data structures could be improved for
+faster searches.
+
+Overall, dynamic swiotlb works best for small configurations with relatively
+few CPUs. It allows the default swiotlb pool to be smaller so that memory is
+not wasted, with dynamic pools making more space available if needed (as long
+as fragmentation isn't an obstacle). It is less useful for large CoCo VMs.
+
+Data Structure Details
+----------------------
+swiotlb is managed with four primary data structures: io_tlb_mem, io_tlb_pool,
+io_tlb_area, and io_tlb_slot. io_tlb_mem describes a swiotlb memory allocator,
+which includes the default memory pool and any dynamic or transient pools
+linked to it. Limited statistics on swiotlb usage are kept per memory allocator
+and are stored in this data structure. These statistics are available under
+/sys/kernel/debug/swiotlb when CONFIG_DEBUG_FS is set.
+
+io_tlb_pool describes a memory pool, either the default pool, a dynamic pool,
+or a transient pool. The description includes the start and end addresses of
+the memory in the pool, a pointer to an array of io_tlb_area structures, and a
+pointer to an array of io_tlb_slot structures that are associated with the pool.
+
+io_tlb_area describes an area. The primary field is the spin lock used to
+serialize access to slots in the area. The io_tlb_area array for a pool has an
+entry for each area, and is accessed using a 0-based area index derived from the
+calling processor ID. Areas exist solely to allow parallel access to swiotlb
+from multiple CPUs.
+
+io_tlb_slot describes an individual memory slot in the pool, with size
+IO_TLB_SIZE (2 KiB currently). The io_tlb_slot array is indexed by the slot
+index computed from the bounce buffer address relative to the starting memory
+address of the pool. The size of struct io_tlb_slot is 24 bytes, so the
+overhead is about 1% of the slot size.
+
+The io_tlb_slot array is designed to meet several requirements. First, the DMA
+APIs and the corresponding swiotlb APIs use the bounce buffer address as the
+identifier for a bounce buffer. This address is returned by
+swiotlb_tbl_map_single(), and then passed as an argument to
+swiotlb_tbl_unmap_single() and the swiotlb_sync_*() functions. The original
+memory buffer address obviously must be passed as an argument to
+swiotlb_tbl_map_single(), but it is not passed to the other APIs. Consequently,
+swiotlb data structures must save the original memory buffer address so that it
+can be used when doing sync operations. This original address is saved in the
+io_tlb_slot array.
+
+Second, the io_tlb_slot array must handle partial sync requests. In such cases,
+the argument to swiotlb_sync_*() is not the address of the start of the bounce
+buffer but an address somewhere in the middle of the bounce buffer, and the
+address of the start of the bounce buffer isn't known to swiotlb code. But
+swiotlb code must be able to calculate the corresponding original memory buffer
+address to do the CPU copy dictated by the "sync". So an adjusted original
+memory buffer address is populated into the struct io_tlb_slot for each slot
+occupied by the bounce buffer. An adjusted "alloc_size" of the bounce buffer is
+also recorded in each struct io_tlb_slot so a sanity check can be performed on
+the size of the "sync" operation. The "alloc_size" field is not used except for
+the sanity check.
+
+Third, the io_tlb_slot array is used to track available slots. The "list" field
+in struct io_tlb_slot records how many contiguous available slots exist starting
+at that slot. A "0" indicates that the slot is occupied. A value of "1"
+indicates only the current slot is available. A value of "2" indicates the
+current slot and the next slot are available, etc. The maximum value is
+IO_TLB_SEGSIZE, which can appear in the first slot in a slot set, and indicates
+that the entire slot set is available. These values are used when searching for
+available slots to use for a new bounce buffer. They are updated when allocating
+a new bounce buffer and when freeing a bounce buffer. At pool creation time, the
+"list" field is initialized to IO_TLB_SEGSIZE down to 1 for the slots in every
+slot set.
+
+Fourth, the io_tlb_slot array keeps track of any "padding slots" allocated to
+meet alloc_align_mask requirements described above. When
+swiotlb_tbl_map_single() allocates bounce buffer space to meet alloc_align_mask
+requirements, it may allocate pre-padding space across zero or more slots. But
+when swiotlb_tbl_unmap_single() is called with the bounce buffer address, the
+alloc_align_mask value that governed the allocation, and therefore the
+allocation of any padding slots, is not known. The "pad_slots" field records
+the number of padding slots so that swiotlb_tbl_unmap_single() can free them.
+The "pad_slots" value is recorded only in the first non-padding slot allocated
+to the bounce buffer.
+
+Restricted pools
+----------------
+The swiotlb machinery is also used for "restricted pools", which are pools of
+memory separate from the default swiotlb pool, and that are dedicated for DMA
+use by a particular device. Restricted pools provide a level of DMA memory
+protection on systems with limited hardware protection capabilities, such as
+those lacking an IOMMU. Such usage is specified by DeviceTree entries and
+requires that CONFIG_DMA_RESTRICTED_POOL is set. Each restricted pool is based
+on its own io_tlb_mem data structure that is independent of the main swiotlb
+io_tlb_mem.
+
+Restricted pools add swiotlb_alloc() and swiotlb_free() APIs, which are called
+from the dma_alloc_*() and dma_free_*() APIs. The swiotlb_alloc/free() APIs
+allocate/free slots from/to the restricted pool directly and do not go through
+swiotlb_tbl_map/unmap_single().
diff --git a/Documentation/core-api/symbol-namespaces.rst b/Documentation/core-api/symbol-namespaces.rst
index 12e4aecdae94..034898e81ba2 100644
--- a/Documentation/core-api/symbol-namespaces.rst
+++ b/Documentation/core-api/symbol-namespaces.rst
@@ -6,18 +6,8 @@ The following document describes how to use Symbol Namespaces to structure the
export surface of in-kernel symbols exported through the family of
EXPORT_SYMBOL() macros.
-.. Table of Contents
-
- === 1 Introduction
- === 2 How to define Symbol Namespaces
- --- 2.1 Using the EXPORT_SYMBOL macros
- --- 2.2 Using the DEFAULT_SYMBOL_NAMESPACE define
- === 3 How to use Symbols exported in Namespaces
- === 4 Loading Modules that use namespaced Symbols
- === 5 Automatically creating MODULE_IMPORT_NS statements
-
-1. Introduction
-===============
+Introduction
+============
Symbol Namespaces have been introduced as a means to structure the export
surface of the in-kernel API. It allows subsystem maintainers to partition
@@ -28,25 +18,28 @@ kernel. As of today, modules that make use of symbols exported into namespaces,
are required to import the namespace. Otherwise the kernel will, depending on
its configuration, reject loading the module or warn about a missing import.
-2. How to define Symbol Namespaces
-==================================
+Additionally, it is possible to put symbols into a module namespace, strictly
+limiting which modules are allowed to use these symbols.
+
+How to define Symbol Namespaces
+===============================
Symbols can be exported into namespace using different methods. All of them are
changing the way EXPORT_SYMBOL and friends are instrumented to create ksymtab
entries.
-2.1 Using the EXPORT_SYMBOL macros
-==================================
+Using the EXPORT_SYMBOL macros
+------------------------------
In addition to the macros EXPORT_SYMBOL() and EXPORT_SYMBOL_GPL(), that allow
exporting of kernel symbols to the kernel symbol table, variants of these are
available to export symbols into a certain namespace: EXPORT_SYMBOL_NS() and
-EXPORT_SYMBOL_NS_GPL(). They take one additional argument: the namespace.
-Please note that due to macro expansion that argument needs to be a
-preprocessor symbol. E.g. to export the symbol ``usb_stor_suspend`` into the
+EXPORT_SYMBOL_NS_GPL(). They take one additional argument: the namespace as a
+string constant. Note that this string must not contain whitespaces.
+E.g. to export the symbol ``usb_stor_suspend`` into the
namespace ``USB_STORAGE``, use::
- EXPORT_SYMBOL_NS(usb_stor_suspend, USB_STORAGE);
+ EXPORT_SYMBOL_NS(usb_stor_suspend, "USB_STORAGE");
The corresponding ksymtab entry struct ``kernel_symbol`` will have the member
``namespace`` set accordingly. A symbol that is exported without a namespace will
@@ -54,8 +47,8 @@ refer to ``NULL``. There is no default namespace if none is defined. ``modpost``
and kernel/module/main.c make use the namespace at build time or module load
time, respectively.
-2.2 Using the DEFAULT_SYMBOL_NAMESPACE define
-=============================================
+Using the DEFAULT_SYMBOL_NAMESPACE define
+-----------------------------------------
Defining namespaces for all symbols of a subsystem can be very verbose and may
become hard to maintain. Therefore a default define (DEFAULT_SYMBOL_NAMESPACE)
@@ -68,7 +61,7 @@ is to define the default namespace in the ``Makefile`` of the subsystem. E.g. to
export all symbols defined in usb-common into the namespace USB_COMMON, add a
line like this to drivers/usb/common/Makefile::
- ccflags-y += -DDEFAULT_SYMBOL_NAMESPACE=USB_COMMON
+ ccflags-y += -DDEFAULT_SYMBOL_NAMESPACE='"USB_COMMON"'
That will affect all EXPORT_SYMBOL() and EXPORT_SYMBOL_GPL() statements. A
symbol exported with EXPORT_SYMBOL_NS() while this definition is present, will
@@ -78,14 +71,30 @@ as this argument has preference over a default symbol namespace.
A second option to define the default namespace is directly in the compilation
unit as preprocessor statement. The above example would then read::
- #undef DEFAULT_SYMBOL_NAMESPACE
- #define DEFAULT_SYMBOL_NAMESPACE USB_COMMON
+ #define DEFAULT_SYMBOL_NAMESPACE "USB_COMMON"
+
+within the corresponding compilation unit before the #include for
+<linux/export.h>. Typically it's placed before the first #include statement.
+
+Using the EXPORT_SYMBOL_FOR_MODULES() macro
+-------------------------------------------
-within the corresponding compilation unit before any EXPORT_SYMBOL macro is
-used.
+Symbols exported using this macro are put into a module namespace. This
+namespace cannot be imported. These exports are GPL-only as they are only
+intended for in-tree modules.
-3. How to use Symbols exported in Namespaces
-============================================
+The macro takes a comma separated list of module names, allowing only those
+modules to access this symbol. Simple tail-globs are supported.
+
+For example::
+
+ EXPORT_SYMBOL_FOR_MODULES(preempt_notifier_inc, "kvm,kvm-*")
+
+will limit usage of this symbol to modules whose name matches the given
+patterns.
+
+How to use Symbols exported in Namespaces
+=========================================
In order to use symbols that are exported into namespaces, kernel modules need
to explicitly import these namespaces. Otherwise the kernel might reject to
@@ -94,7 +103,7 @@ for the namespaces it uses symbols from. E.g. a module using the
usb_stor_suspend symbol from above, needs to import the namespace USB_STORAGE
using a statement like::
- MODULE_IMPORT_NS(USB_STORAGE);
+ MODULE_IMPORT_NS("USB_STORAGE");
This will create a ``modinfo`` tag in the module for each imported namespace.
This has the side effect, that the imported namespaces of a module can be
@@ -107,11 +116,10 @@ inspected with modinfo::
It is advisable to add the MODULE_IMPORT_NS() statement close to other module
-metadata definitions like MODULE_AUTHOR() or MODULE_LICENSE(). Refer to section
-5. for a way to create missing import statements automatically.
+metadata definitions like MODULE_AUTHOR() or MODULE_LICENSE().
-4. Loading Modules that use namespaced Symbols
-==============================================
+Loading Modules that use namespaced Symbols
+===========================================
At module loading time (e.g. ``insmod``), the kernel will check each symbol
referenced from the module for its availability and whether the namespace it
@@ -122,8 +130,8 @@ allow loading of modules that don't satisfy this precondition, a configuration
option is available: Setting MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS=y will
enable loading regardless, but will emit a warning.
-5. Automatically creating MODULE_IMPORT_NS statements
-=====================================================
+Automatically creating MODULE_IMPORT_NS statements
+==================================================
Missing namespaces imports can easily be detected at build time. In fact,
modpost will emit a warning if a module uses a symbol from a namespace
@@ -155,3 +163,6 @@ in-tree modules::
You can also run nsdeps for external module builds. A typical usage is::
$ make -C <path_to_kernel_src> M=$PWD nsdeps
+
+Note: it will happily generate an import statement for the module namespace;
+which will not work and generates build and runtime failures.
diff --git a/Documentation/core-api/this_cpu_ops.rst b/Documentation/core-api/this_cpu_ops.rst
index 5cb8b883ae83..533ac5dd5750 100644
--- a/Documentation/core-api/this_cpu_ops.rst
+++ b/Documentation/core-api/this_cpu_ops.rst
@@ -53,7 +53,6 @@ preemption and interrupts::
this_cpu_add_return(pcp, val)
this_cpu_xchg(pcp, nval)
this_cpu_cmpxchg(pcp, oval, nval)
- this_cpu_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2)
this_cpu_sub(pcp, val)
this_cpu_inc(pcp)
this_cpu_dec(pcp)
@@ -139,12 +138,22 @@ get_cpu/put_cpu sequence requires. No processor number is
available. Instead, the offset of the local per cpu area is simply
added to the per cpu offset.
-Note that this operation is usually used in a code segment when
-preemption has been disabled. The pointer is then used to
-access local per cpu data in a critical section. When preemption
-is re-enabled this pointer is usually no longer useful since it may
-no longer point to per cpu data of the current processor.
-
+Note that this operation can only be used in code segments where
+smp_processor_id() may be used, for example, where preemption has been
+disabled. The pointer is then used to access local per cpu data in a
+critical section. When preemption is re-enabled this pointer is usually
+no longer useful since it may no longer point to per cpu data of the
+current processor.
+
+The special cases where it makes sense to obtain a per-CPU pointer in
+preemptible code are addressed by raw_cpu_ptr(), but such use cases need
+to handle cases where two different CPUs are accessing the same per cpu
+variable, which might well be that of a third CPU. These use cases are
+typically performance optimizations. For example, SRCU implements a pair
+of counters as a pair of per-CPU variables, and rcu_read_lock_nmisafe()
+uses raw_cpu_ptr() to get a pointer to some CPU's counter, and uses
+atomic_inc_long() to handle migration between the raw_cpu_ptr() and
+the atomic_inc_long().
Per cpu variables and offsets
-----------------------------
@@ -242,7 +251,6 @@ safe::
__this_cpu_add_return(pcp, val)
__this_cpu_xchg(pcp, nval)
__this_cpu_cmpxchg(pcp, oval, nval)
- __this_cpu_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2)
__this_cpu_sub(pcp, val)
__this_cpu_inc(pcp)
__this_cpu_dec(pcp)
diff --git a/Documentation/core-api/unaligned-memory-access.rst b/Documentation/core-api/unaligned-memory-access.rst
index 1ee82419d8aa..5ceeb80eb539 100644
--- a/Documentation/core-api/unaligned-memory-access.rst
+++ b/Documentation/core-api/unaligned-memory-access.rst
@@ -203,7 +203,7 @@ Avoiding unaligned accesses
===========================
The easiest way to avoid unaligned access is to use the get_unaligned() and
-put_unaligned() macros provided by the <asm/unaligned.h> header file.
+put_unaligned() macros provided by the <linux/unaligned.h> header file.
Going back to an earlier example of code that potentially causes unaligned
access::
diff --git a/Documentation/core-api/union_find.rst b/Documentation/core-api/union_find.rst
new file mode 100644
index 000000000000..6df8b94fdb5a
--- /dev/null
+++ b/Documentation/core-api/union_find.rst
@@ -0,0 +1,106 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+====================
+Union-Find in Linux
+====================
+
+
+:Date: June 21, 2024
+:Author: Xavier <xavier_qy@163.com>
+
+What is union-find, and what is it used for?
+------------------------------------------------
+
+Union-find is a data structure used to handle the merging and querying
+of disjoint sets. The primary operations supported by union-find are:
+
+ Initialization: Resetting each element as an individual set, with
+ each set's initial parent node pointing to itself.
+
+ Find: Determine which set a particular element belongs to, usually by
+ returning a “representative element” of that set. This operation
+ is used to check if two elements are in the same set.
+
+ Union: Merge two sets into one.
+
+As a data structure used to maintain sets (groups), union-find is commonly
+utilized to solve problems related to offline queries, dynamic connectivity,
+and graph theory. It is also a key component in Kruskal's algorithm for
+computing the minimum spanning tree, which is crucial in scenarios like
+network routing. Consequently, union-find is widely referenced. Additionally,
+union-find has applications in symbolic computation, register allocation,
+and more.
+
+Space Complexity: O(n), where n is the number of nodes.
+
+Time Complexity: Using path compression can reduce the time complexity of
+the find operation, and using union by rank can reduce the time complexity
+of the union operation. These optimizations reduce the average time
+complexity of each find and union operation to O(α(n)), where α(n) is the
+inverse Ackermann function. This can be roughly considered a constant time
+complexity for practical purposes.
+
+This document covers use of the Linux union-find implementation. For more
+information on the nature and implementation of union-find, see:
+
+ Wikipedia entry on union-find
+ https://en.wikipedia.org/wiki/Disjoint-set_data_structure
+
+Linux implementation of union-find
+-----------------------------------
+
+Linux's union-find implementation resides in the file "lib/union_find.c".
+To use it, "#include <linux/union_find.h>".
+
+The union-find data structure is defined as follows::
+
+ struct uf_node {
+ struct uf_node *parent;
+ unsigned int rank;
+ };
+
+In this structure, parent points to the parent node of the current node.
+The rank field represents the height of the current tree. During a union
+operation, the tree with the smaller rank is attached under the tree with the
+larger rank to maintain balance.
+
+Initializing union-find
+-----------------------
+
+You can complete the initialization using either static or initialization
+interface. Initialize the parent pointer to point to itself and set the rank
+to 0.
+Example::
+
+ struct uf_node my_node = UF_INIT_NODE(my_node);
+
+or
+
+ uf_node_init(&my_node);
+
+Find the Root Node of union-find
+--------------------------------
+
+This operation is mainly used to determine whether two nodes belong to the same
+set in the union-find. If they have the same root, they are in the same set.
+During the find operation, path compression is performed to improve the
+efficiency of subsequent find operations.
+Example::
+
+ int connected;
+ struct uf_node *root1 = uf_find(&node_1);
+ struct uf_node *root2 = uf_find(&node_2);
+ if (root1 == root2)
+ connected = 1;
+ else
+ connected = 0;
+
+Union Two Sets in union-find
+----------------------------
+
+To union two sets in the union-find, you first find their respective root nodes
+and then link the smaller node to the larger node based on the rank of the root
+nodes.
+Example::
+
+ uf_union(&node_1, &node_2);
diff --git a/Documentation/core-api/workqueue.rst b/Documentation/core-api/workqueue.rst
index 8ec4d6270b24..165ca73e8351 100644
--- a/Documentation/core-api/workqueue.rst
+++ b/Documentation/core-api/workqueue.rst
@@ -1,6 +1,6 @@
-====================================
-Concurrency Managed Workqueue (cmwq)
-====================================
+=========
+Workqueue
+=========
:Date: September, 2010
:Author: Tejun Heo <tj@kernel.org>
@@ -25,8 +25,8 @@ there is no work item left on the workqueue the worker becomes idle.
When a new work item gets queued, the worker begins executing again.
-Why cmwq?
-=========
+Why Concurrency Managed Workqueue?
+==================================
In the original wq implementation, a multi threaded (MT) wq had one
worker thread per CPU and a single threaded (ST) wq had one worker
@@ -77,10 +77,12 @@ wants a function to be executed asynchronously it has to set up a work
item pointing to that function and queue that work item on a
workqueue.
-Special purpose threads, called worker threads, execute the functions
-off of the queue, one after the other. If no work is queued, the
-worker threads become idle. These worker threads are managed in so
-called worker-pools.
+A work item can be executed in either a thread or the BH (softirq) context.
+
+For threaded workqueues, special purpose threads, called [k]workers, execute
+the functions off of the queue, one after the other. If no work is queued,
+the worker threads become idle. These worker threads are managed in
+worker-pools.
The cmwq design differentiates between the user-facing workqueues that
subsystems and drivers queue work items on and the backend mechanism
@@ -91,6 +93,12 @@ for high priority ones, for each possible CPU and some extra
worker-pools to serve work items queued on unbound workqueues - the
number of these backing pools is dynamic.
+BH workqueues use the same framework. However, as there can only be one
+concurrent execution context, there's no need to worry about concurrency.
+Each per-CPU BH worker pool contains only one pseudo worker which represents
+the BH execution context. A BH workqueue can be considered a convenience
+interface to softirq.
+
Subsystems and drivers can create and queue work items through special
workqueue API functions as they see fit. They can influence some
aspects of the way the work items are executed by setting flags on the
@@ -106,7 +114,7 @@ unless specifically overridden, a work item of a bound workqueue will
be queued on the worklist of either normal or highpri worker-pool that
is associated to the CPU the issuer is running on.
-For any worker pool implementation, managing the concurrency level
+For any thread pool implementation, managing the concurrency level
(how many execution contexts are active) is an important issue. cmwq
tries to keep the concurrency at a minimal but sufficient level.
Minimal to save resources and sufficient in that the system is used at
@@ -164,6 +172,23 @@ resources, scheduled and executed.
``flags``
---------
+``WQ_BH``
+ BH workqueues can be considered a convenience interface to softirq. BH
+ workqueues are always per-CPU and all BH work items are executed in the
+ queueing CPU's softirq context in the queueing order.
+
+ All BH workqueues must have 0 ``max_active`` and ``WQ_HIGHPRI`` is the
+ only allowed additional flag.
+
+ BH work items cannot sleep. All other features such as delayed queueing,
+ flushing and canceling are supported.
+
+``WQ_PERCPU``
+ Work items queued to a per-cpu wq are bound to a specific CPU.
+ This flag is the right choice when cpu locality is important.
+
+ This flag is the complement of ``WQ_UNBOUND``.
+
``WQ_UNBOUND``
Work items queued to an unbound wq are served by the special
worker-pools which host workers which are not bound to any
@@ -220,17 +245,16 @@ resources, scheduled and executed.
``max_active``
--------------
-``@max_active`` determines the maximum number of execution contexts
-per CPU which can be assigned to the work items of a wq. For example,
-with ``@max_active`` of 16, at most 16 work items of the wq can be
-executing at the same time per CPU.
+``@max_active`` determines the maximum number of execution contexts per
+CPU which can be assigned to the work items of a wq. For example, with
+``@max_active`` of 16, at most 16 work items of the wq can be executing
+at the same time per CPU. This is always a per-CPU attribute, even for
+unbound workqueues.
-Currently, for a bound wq, the maximum limit for ``@max_active`` is
-512 and the default value used when 0 is specified is 256. For an
-unbound wq, the limit is higher of 512 and 4 *
-``num_possible_cpus()``. These values are chosen sufficiently high
-such that they are not the limiting factor while providing protection
-in runaway cases.
+The maximum limit for ``@max_active`` is 2048 and the default value used
+when 0 is specified is 1024. These values are chosen sufficiently high
+such that they are not the limiting factor while providing protection in
+runaway cases.
The number of active work items of a wq is usually regulated by the
users of the wq, more specifically, by how many work items the users
@@ -238,15 +262,11 @@ may queue at the same time. Unless there is a specific need for
throttling the number of active work items, specifying '0' is
recommended.
-Some users depend on the strict execution ordering of ST wq. The
-combination of ``@max_active`` of 1 and ``WQ_UNBOUND`` used to
-achieve this behavior. Work items on such wq were always queued to the
-unbound worker-pools and only one work item could be active at any given
-time thus achieving the same ordering property as ST wq.
-
-In the current implementation the above configuration only guarantees
-ST behavior within a given NUMA node. Instead ``alloc_ordered_queue()`` should
-be used to achieve system-wide ST behavior.
+Some users depend on strict execution ordering where only one work item
+is in flight at any given time and the work items are processed in
+queueing order. While the combination of ``@max_active`` of 1 and
+``WQ_UNBOUND`` used to achieve this behavior, this is no longer the
+case. Use alloc_ordered_workqueue() instead.
Example Execution Scenarios
@@ -343,11 +363,366 @@ Guidelines
difference in execution characteristics between using a dedicated wq
and a system wq.
+ Note: If something may generate more than @max_active outstanding
+ work items (do stress test your producers), it may saturate a system
+ wq and potentially lead to deadlock. It should utilize its own
+ dedicated workqueue rather than the system wq.
+
* Unless work items are expected to consume a huge amount of CPU
cycles, using a bound wq is usually beneficial due to the increased
level of locality in wq operations and work item execution.
+Affinity Scopes
+===============
+
+An unbound workqueue groups CPUs according to its affinity scope to improve
+cache locality. For example, if a workqueue is using the default affinity
+scope of "cache", it will group CPUs according to last level cache
+boundaries. A work item queued on the workqueue will be assigned to a worker
+on one of the CPUs which share the last level cache with the issuing CPU.
+Once started, the worker may or may not be allowed to move outside the scope
+depending on the ``affinity_strict`` setting of the scope.
+
+Workqueue currently supports the following affinity scopes.
+
+``default``
+ Use the scope in module parameter ``workqueue.default_affinity_scope``
+ which is always set to one of the scopes below.
+
+``cpu``
+ CPUs are not grouped. A work item issued on one CPU is processed by a
+ worker on the same CPU. This makes unbound workqueues behave as per-cpu
+ workqueues without concurrency management.
+
+``smt``
+ CPUs are grouped according to SMT boundaries. This usually means that the
+ logical threads of each physical CPU core are grouped together.
+
+``cache``
+ CPUs are grouped according to cache boundaries. Which specific cache
+ boundary is used is determined by the arch code. L3 is used in a lot of
+ cases. This is the default affinity scope.
+
+``numa``
+ CPUs are grouped according to NUMA boundaries.
+
+``system``
+ All CPUs are put in the same group. Workqueue makes no effort to process a
+ work item on a CPU close to the issuing CPU.
+
+The default affinity scope can be changed with the module parameter
+``workqueue.default_affinity_scope`` and a specific workqueue's affinity
+scope can be changed using ``apply_workqueue_attrs()``.
+
+If ``WQ_SYSFS`` is set, the workqueue will have the following affinity scope
+related interface files under its ``/sys/devices/virtual/workqueue/WQ_NAME/``
+directory.
+
+``affinity_scope``
+ Read to see the current affinity scope. Write to change.
+
+ When default is the current scope, reading this file will also show the
+ current effective scope in parentheses, for example, ``default (cache)``.
+
+``affinity_strict``
+ 0 by default indicating that affinity scopes are not strict. When a work
+ item starts execution, workqueue makes a best-effort attempt to ensure
+ that the worker is inside its affinity scope, which is called
+ repatriation. Once started, the scheduler is free to move the worker
+ anywhere in the system as it sees fit. This enables benefiting from scope
+ locality while still being able to utilize other CPUs if necessary and
+ available.
+
+ If set to 1, all workers of the scope are guaranteed always to be in the
+ scope. This may be useful when crossing affinity scopes has other
+ implications, for example, in terms of power consumption or workload
+ isolation. Strict NUMA scope can also be used to match the workqueue
+ behavior of older kernels.
+
+
+Affinity Scopes and Performance
+===============================
+
+It'd be ideal if an unbound workqueue's behavior is optimal for vast
+majority of use cases without further tuning. Unfortunately, in the current
+kernel, there exists a pronounced trade-off between locality and utilization
+necessitating explicit configurations when workqueues are heavily used.
+
+Higher locality leads to higher efficiency where more work is performed for
+the same number of consumed CPU cycles. However, higher locality may also
+cause lower overall system utilization if the work items are not spread
+enough across the affinity scopes by the issuers. The following performance
+testing with dm-crypt clearly illustrates this trade-off.
+
+The tests are run on a CPU with 12-cores/24-threads split across four L3
+caches (AMD Ryzen 9 3900x). CPU clock boost is turned off for consistency.
+``/dev/dm-0`` is a dm-crypt device created on NVME SSD (Samsung 990 PRO) and
+opened with ``cryptsetup`` with default settings.
+
+
+Scenario 1: Enough issuers and work spread across the machine
+-------------------------------------------------------------
+
+The command used: ::
+
+ $ fio --filename=/dev/dm-0 --direct=1 --rw=randrw --bs=32k --ioengine=libaio \
+ --iodepth=64 --runtime=60 --numjobs=24 --time_based --group_reporting \
+ --name=iops-test-job --verify=sha512
+
+There are 24 issuers, each issuing 64 IOs concurrently. ``--verify=sha512``
+makes ``fio`` generate and read back the content each time which makes
+execution locality matter between the issuer and ``kcryptd``. The following
+are the read bandwidths and CPU utilizations depending on different affinity
+scope settings on ``kcryptd`` measured over five runs. Bandwidths are in
+MiBps, and CPU util in percents.
+
+.. list-table::
+ :widths: 16 20 20
+ :header-rows: 1
+
+ * - Affinity
+ - Bandwidth (MiBps)
+ - CPU util (%)
+
+ * - system
+ - 1159.40 ±1.34
+ - 99.31 ±0.02
+
+ * - cache
+ - 1166.40 ±0.89
+ - 99.34 ±0.01
+
+ * - cache (strict)
+ - 1166.00 ±0.71
+ - 99.35 ±0.01
+
+With enough issuers spread across the system, there is no downside to
+"cache", strict or otherwise. All three configurations saturate the whole
+machine but the cache-affine ones outperform by 0.6% thanks to improved
+locality.
+
+
+Scenario 2: Fewer issuers, enough work for saturation
+-----------------------------------------------------
+
+The command used: ::
+
+ $ fio --filename=/dev/dm-0 --direct=1 --rw=randrw --bs=32k \
+ --ioengine=libaio --iodepth=64 --runtime=60 --numjobs=8 \
+ --time_based --group_reporting --name=iops-test-job --verify=sha512
+
+The only difference from the previous scenario is ``--numjobs=8``. There are
+a third of the issuers but is still enough total work to saturate the
+system.
+
+.. list-table::
+ :widths: 16 20 20
+ :header-rows: 1
+
+ * - Affinity
+ - Bandwidth (MiBps)
+ - CPU util (%)
+
+ * - system
+ - 1155.40 ±0.89
+ - 97.41 ±0.05
+
+ * - cache
+ - 1154.40 ±1.14
+ - 96.15 ±0.09
+
+ * - cache (strict)
+ - 1112.00 ±4.64
+ - 93.26 ±0.35
+
+This is more than enough work to saturate the system. Both "system" and
+"cache" are nearly saturating the machine but not fully. "cache" is using
+less CPU but the better efficiency puts it at the same bandwidth as
+"system".
+
+Eight issuers moving around over four L3 cache scope still allow "cache
+(strict)" to mostly saturate the machine but the loss of work conservation
+is now starting to hurt with 3.7% bandwidth loss.
+
+
+Scenario 3: Even fewer issuers, not enough work to saturate
+-----------------------------------------------------------
+
+The command used: ::
+
+ $ fio --filename=/dev/dm-0 --direct=1 --rw=randrw --bs=32k \
+ --ioengine=libaio --iodepth=64 --runtime=60 --numjobs=4 \
+ --time_based --group_reporting --name=iops-test-job --verify=sha512
+
+Again, the only difference is ``--numjobs=4``. With the number of issuers
+reduced to four, there now isn't enough work to saturate the whole system
+and the bandwidth becomes dependent on completion latencies.
+
+.. list-table::
+ :widths: 16 20 20
+ :header-rows: 1
+
+ * - Affinity
+ - Bandwidth (MiBps)
+ - CPU util (%)
+
+ * - system
+ - 993.60 ±1.82
+ - 75.49 ±0.06
+
+ * - cache
+ - 973.40 ±1.52
+ - 74.90 ±0.07
+
+ * - cache (strict)
+ - 828.20 ±4.49
+ - 66.84 ±0.29
+
+Now, the tradeoff between locality and utilization is clearer. "cache" shows
+2% bandwidth loss compared to "system" and "cache (struct)" whopping 20%.
+
+
+Conclusion and Recommendations
+------------------------------
+
+In the above experiments, the efficiency advantage of the "cache" affinity
+scope over "system" is, while consistent and noticeable, small. However, the
+impact is dependent on the distances between the scopes and may be more
+pronounced in processors with more complex topologies.
+
+While the loss of work-conservation in certain scenarios hurts, it is a lot
+better than "cache (strict)" and maximizing workqueue utilization is
+unlikely to be the common case anyway. As such, "cache" is the default
+affinity scope for unbound pools.
+
+* As there is no one option which is great for most cases, workqueue usages
+ that may consume a significant amount of CPU are recommended to configure
+ the workqueues using ``apply_workqueue_attrs()`` and/or enable
+ ``WQ_SYSFS``.
+
+* An unbound workqueue with strict "cpu" affinity scope behaves the same as
+ ``WQ_CPU_INTENSIVE`` per-cpu workqueue. There is no real advanage to the
+ latter and an unbound workqueue provides a lot more flexibility.
+
+* Affinity scopes are introduced in Linux v6.5. To emulate the previous
+ behavior, use strict "numa" affinity scope.
+
+* The loss of work-conservation in non-strict affinity scopes is likely
+ originating from the scheduler. There is no theoretical reason why the
+ kernel wouldn't be able to do the right thing and maintain
+ work-conservation in most cases. As such, it is possible that future
+ scheduler improvements may make most of these tunables unnecessary.
+
+
+Examining Configuration
+=======================
+
+Use tools/workqueue/wq_dump.py to examine unbound CPU affinity
+configuration, worker pools and how workqueues map to the pools: ::
+
+ $ tools/workqueue/wq_dump.py
+ Affinity Scopes
+ ===============
+ wq_unbound_cpumask=0000000f
+
+ CPU
+ nr_pods 4
+ pod_cpus [0]=00000001 [1]=00000002 [2]=00000004 [3]=00000008
+ pod_node [0]=0 [1]=0 [2]=1 [3]=1
+ cpu_pod [0]=0 [1]=1 [2]=2 [3]=3
+
+ SMT
+ nr_pods 4
+ pod_cpus [0]=00000001 [1]=00000002 [2]=00000004 [3]=00000008
+ pod_node [0]=0 [1]=0 [2]=1 [3]=1
+ cpu_pod [0]=0 [1]=1 [2]=2 [3]=3
+
+ CACHE (default)
+ nr_pods 2
+ pod_cpus [0]=00000003 [1]=0000000c
+ pod_node [0]=0 [1]=1
+ cpu_pod [0]=0 [1]=0 [2]=1 [3]=1
+
+ NUMA
+ nr_pods 2
+ pod_cpus [0]=00000003 [1]=0000000c
+ pod_node [0]=0 [1]=1
+ cpu_pod [0]=0 [1]=0 [2]=1 [3]=1
+
+ SYSTEM
+ nr_pods 1
+ pod_cpus [0]=0000000f
+ pod_node [0]=-1
+ cpu_pod [0]=0 [1]=0 [2]=0 [3]=0
+
+ Worker Pools
+ ============
+ pool[00] ref= 1 nice= 0 idle/workers= 4/ 4 cpu= 0
+ pool[01] ref= 1 nice=-20 idle/workers= 2/ 2 cpu= 0
+ pool[02] ref= 1 nice= 0 idle/workers= 4/ 4 cpu= 1
+ pool[03] ref= 1 nice=-20 idle/workers= 2/ 2 cpu= 1
+ pool[04] ref= 1 nice= 0 idle/workers= 4/ 4 cpu= 2
+ pool[05] ref= 1 nice=-20 idle/workers= 2/ 2 cpu= 2
+ pool[06] ref= 1 nice= 0 idle/workers= 3/ 3 cpu= 3
+ pool[07] ref= 1 nice=-20 idle/workers= 2/ 2 cpu= 3
+ pool[08] ref=42 nice= 0 idle/workers= 6/ 6 cpus=0000000f
+ pool[09] ref=28 nice= 0 idle/workers= 3/ 3 cpus=00000003
+ pool[10] ref=28 nice= 0 idle/workers= 17/ 17 cpus=0000000c
+ pool[11] ref= 1 nice=-20 idle/workers= 1/ 1 cpus=0000000f
+ pool[12] ref= 2 nice=-20 idle/workers= 1/ 1 cpus=00000003
+ pool[13] ref= 2 nice=-20 idle/workers= 1/ 1 cpus=0000000c
+
+ Workqueue CPU -> pool
+ =====================
+ [ workqueue \ CPU 0 1 2 3 dfl]
+ events percpu 0 2 4 6
+ events_highpri percpu 1 3 5 7
+ events_long percpu 0 2 4 6
+ events_unbound unbound 9 9 10 10 8
+ events_freezable percpu 0 2 4 6
+ events_power_efficient percpu 0 2 4 6
+ events_freezable_pwr_ef percpu 0 2 4 6
+ rcu_gp percpu 0 2 4 6
+ rcu_par_gp percpu 0 2 4 6
+ slub_flushwq percpu 0 2 4 6
+ netns ordered 8 8 8 8 8
+ ...
+
+See the command's help message for more info.
+
+
+Monitoring
+==========
+
+Use tools/workqueue/wq_monitor.py to monitor workqueue operations: ::
+
+ $ tools/workqueue/wq_monitor.py events
+ total infl CPUtime CPUhog CMW/RPR mayday rescued
+ events 18545 0 6.1 0 5 - -
+ events_highpri 8 0 0.0 0 0 - -
+ events_long 3 0 0.0 0 0 - -
+ events_unbound 38306 0 0.1 - 7 - -
+ events_freezable 0 0 0.0 0 0 - -
+ events_power_efficient 29598 0 0.2 0 0 - -
+ events_freezable_pwr_ef 10 0 0.0 0 0 - -
+ sock_diag_events 0 0 0.0 0 0 - -
+
+ total infl CPUtime CPUhog CMW/RPR mayday rescued
+ events 18548 0 6.1 0 5 - -
+ events_highpri 8 0 0.0 0 0 - -
+ events_long 3 0 0.0 0 0 - -
+ events_unbound 38322 0 0.1 - 7 - -
+ events_freezable 0 0 0.0 0 0 - -
+ events_power_efficient 29603 0 0.2 0 0 - -
+ events_freezable_pwr_ef 10 0 0.0 0 0 - -
+ sock_diag_events 0 0 0.0 0 0 - -
+
+ ...
+
+See the command's help message for more info.
+
+
Debugging
=========
@@ -387,6 +762,7 @@ the stack trace of the offending worker thread. ::
The work item's function should be trivially visible in the stack
trace.
+
Non-reentrance Conditions
=========================
diff --git a/Documentation/core-api/xarray.rst b/Documentation/core-api/xarray.rst
index 77e0ece2b1d6..c6c91cbd0c3c 100644
--- a/Documentation/core-api/xarray.rst
+++ b/Documentation/core-api/xarray.rst
@@ -42,8 +42,8 @@ call xa_tag_pointer() to create an entry with a tag, xa_untag_pointer()
to turn a tagged entry back into an untagged pointer and xa_pointer_tag()
to retrieve the tag of an entry. Tagged pointers use the same bits that
are used to distinguish value entries from normal pointers, so you must
-decide whether they want to store value entries or tagged pointers in
-any particular XArray.
+decide whether you want to store value entries or tagged pointers in any
+particular XArray.
The XArray does not support storing IS_ERR() pointers as some
conflict with value entries or internal entries.
@@ -52,8 +52,9 @@ An unusual feature of the XArray is the ability to create entries which
occupy a range of indices. Once stored to, looking up any index in
the range will return the same entry as looking up any other index in
the range. Storing to any index will store to all of them. Multi-index
-entries can be explicitly split into smaller entries, or storing ``NULL``
-into any entry will cause the XArray to forget about the range.
+entries can be explicitly split into smaller entries. Unsetting (using
+xa_erase() or xa_store() with ``NULL``) any entry will cause the XArray
+to forget about the range.
Normal API
==========
@@ -63,13 +64,14 @@ for statically allocated XArrays or xa_init() for dynamically
allocated ones. A freshly-initialised XArray contains a ``NULL``
pointer at every index.
-You can then set entries using xa_store() and get entries
-using xa_load(). xa_store will overwrite any entry with the
-new entry and return the previous entry stored at that index. You can
-use xa_erase() instead of calling xa_store() with a
-``NULL`` entry. There is no difference between an entry that has never
-been stored to, one that has been erased and one that has most recently
-had ``NULL`` stored to it.
+You can then set entries using xa_store() and get entries using
+xa_load(). xa_store() will overwrite any entry with the new entry and
+return the previous entry stored at that index. You can unset entries
+using xa_erase() or by setting the entry to ``NULL`` using xa_store().
+There is no difference between an entry that has never been stored to
+and one that has been erased with xa_erase(); an entry that has most
+recently had ``NULL`` stored to it is also equivalent except if the
+XArray was initialized with ``XA_FLAGS_ALLOC``.
You can conditionally replace an entry at an index by using
xa_cmpxchg(). Like cmpxchg(), it will only succeed if
@@ -487,7 +489,19 @@ Storing ``NULL`` into any index of a multi-index entry will set the
entry at every index to ``NULL`` and dissolve the tie. A multi-index
entry can be split into entries occupying smaller ranges by calling
xas_split_alloc() without the xa_lock held, followed by taking the lock
-and calling xas_split().
+and calling xas_split() or calling xas_try_split() with xa_lock. The
+difference between xas_split_alloc()+xas_split() and xas_try_alloc() is
+that xas_split_alloc() + xas_split() split the entry from the original
+order to the new order in one shot uniformly, whereas xas_try_split()
+iteratively splits the entry containing the index non-uniformly.
+For example, to split an order-9 entry, which takes 2^(9-6)=8 slots,
+assuming ``XA_CHUNK_SHIFT`` is 6, xas_split_alloc() + xas_split() need
+8 xa_node. xas_try_split() splits the order-9 entry into
+2 order-8 entries, then split one order-8 entry, based on the given index,
+to 2 order-7 entries, ..., and split one order-1 entry to 2 order-0 entries.
+When splitting the order-6 entry and a new xa_node is needed, xas_try_split()
+will try to allocate one if possible. As a result, xas_try_split() would only
+need 1 xa_node instead of 8.
Functions and structures
========================
diff --git a/Documentation/cpu-freq/cpu-drivers.rst b/Documentation/cpu-freq/cpu-drivers.rst
index d84ededb66f9..c5635ac3de54 100644
--- a/Documentation/cpu-freq/cpu-drivers.rst
+++ b/Documentation/cpu-freq/cpu-drivers.rst
@@ -109,8 +109,7 @@ Then, the driver must fill in the following values:
+-----------------------------------+--------------------------------------+
|policy->cpuinfo.transition_latency | the time it takes on this CPU to |
| | switch between two frequencies in |
-| | nanoseconds (if appropriate, else |
-| | specify CPUFREQ_ETERNAL) |
+| | nanoseconds |
+-----------------------------------+--------------------------------------+
|policy->cur | The current operating frequency of |
| | this CPU (if appropriate) |
diff --git a/Documentation/crypto/api-aead.rst b/Documentation/crypto/api-aead.rst
index d15256f1ae36..78d073319f96 100644
--- a/Documentation/crypto/api-aead.rst
+++ b/Documentation/crypto/api-aead.rst
@@ -1,3 +1,6 @@
+Authenticated Encryption With Associated Data (AEAD)
+====================================================
+
Authenticated Encryption With Associated Data (AEAD) Algorithm Definitions
--------------------------------------------------------------------------
diff --git a/Documentation/crypto/api-akcipher.rst b/Documentation/crypto/api-akcipher.rst
index 40aa8746e2a1..a31f5aef7667 100644
--- a/Documentation/crypto/api-akcipher.rst
+++ b/Documentation/crypto/api-akcipher.rst
@@ -1,3 +1,6 @@
+Asymmetric Cipher
+=================
+
Asymmetric Cipher Algorithm Definitions
---------------------------------------
@@ -8,10 +11,10 @@ Asymmetric Cipher API
---------------------
.. kernel-doc:: include/crypto/akcipher.h
- :doc: Generic Public Key API
+ :doc: Generic Public Key Cipher API
.. kernel-doc:: include/crypto/akcipher.h
- :functions: crypto_alloc_akcipher crypto_free_akcipher crypto_akcipher_set_pub_key crypto_akcipher_set_priv_key crypto_akcipher_maxsize crypto_akcipher_encrypt crypto_akcipher_decrypt crypto_akcipher_sign crypto_akcipher_verify
+ :functions: crypto_alloc_akcipher crypto_free_akcipher crypto_akcipher_set_pub_key crypto_akcipher_set_priv_key crypto_akcipher_maxsize crypto_akcipher_encrypt crypto_akcipher_decrypt
Asymmetric Cipher Request Handle
--------------------------------
diff --git a/Documentation/crypto/api-digest.rst b/Documentation/crypto/api-digest.rst
index 7a1e670d6ce1..02a2bcc26a64 100644
--- a/Documentation/crypto/api-digest.rst
+++ b/Documentation/crypto/api-digest.rst
@@ -1,3 +1,6 @@
+Message Digest
+==============
+
Message Digest Algorithm Definitions
------------------------------------
diff --git a/Documentation/crypto/api-kpp.rst b/Documentation/crypto/api-kpp.rst
index 7d86ab906bdf..5794e2d10c95 100644
--- a/Documentation/crypto/api-kpp.rst
+++ b/Documentation/crypto/api-kpp.rst
@@ -1,3 +1,6 @@
+Key-agreement Protocol Primitives (KPP)
+=======================================
+
Key-agreement Protocol Primitives (KPP) Cipher Algorithm Definitions
--------------------------------------------------------------------
diff --git a/Documentation/crypto/api-rng.rst b/Documentation/crypto/api-rng.rst
index 10ba7436cee4..23a94c0b272e 100644
--- a/Documentation/crypto/api-rng.rst
+++ b/Documentation/crypto/api-rng.rst
@@ -1,3 +1,6 @@
+Random Number Generator (RNG)
+=============================
+
Random Number Algorithm Definitions
-----------------------------------
diff --git a/Documentation/crypto/api-sig.rst b/Documentation/crypto/api-sig.rst
new file mode 100644
index 000000000000..4d8aba8aee8e
--- /dev/null
+++ b/Documentation/crypto/api-sig.rst
@@ -0,0 +1,18 @@
+Asymmetric Signature
+====================
+
+Asymmetric Signature Algorithm Definitions
+------------------------------------------
+
+.. kernel-doc:: include/crypto/sig.h
+ :functions: sig_alg
+
+Asymmetric Signature API
+------------------------
+
+.. kernel-doc:: include/crypto/sig.h
+ :doc: Generic Public Key Signature API
+
+.. kernel-doc:: include/crypto/sig.h
+ :functions: crypto_alloc_sig crypto_free_sig crypto_sig_set_pubkey crypto_sig_set_privkey crypto_sig_keysize crypto_sig_maxsize crypto_sig_digestsize crypto_sig_sign crypto_sig_verify
+
diff --git a/Documentation/crypto/api-skcipher.rst b/Documentation/crypto/api-skcipher.rst
index 04d6cc5357c8..4b7c8160790a 100644
--- a/Documentation/crypto/api-skcipher.rst
+++ b/Documentation/crypto/api-skcipher.rst
@@ -1,3 +1,6 @@
+Symmetric Key Cipher
+====================
+
Block Cipher Algorithm Definitions
----------------------------------
diff --git a/Documentation/crypto/api.rst b/Documentation/crypto/api.rst
index b91b31736df8..8b2a90521886 100644
--- a/Documentation/crypto/api.rst
+++ b/Documentation/crypto/api.rst
@@ -1,11 +1,8 @@
Programming Interface
=====================
-.. class:: toc-title
-
- Table of contents
-
.. toctree::
+ :caption: Table of contents
:maxdepth: 2
api-skcipher
@@ -13,4 +10,5 @@ Programming Interface
api-digest
api-rng
api-akcipher
+ api-sig
api-kpp
diff --git a/Documentation/crypto/architecture.rst b/Documentation/crypto/architecture.rst
index 646c3380a7ed..249b54d0849f 100644
--- a/Documentation/crypto/architecture.rst
+++ b/Documentation/crypto/architecture.rst
@@ -196,8 +196,6 @@ the aforementioned cipher types:
- CRYPTO_ALG_TYPE_CIPHER Single block cipher
-- CRYPTO_ALG_TYPE_COMPRESS Compression
-
- CRYPTO_ALG_TYPE_AEAD Authenticated Encryption with Associated Data
(MAC)
@@ -214,6 +212,8 @@ the aforementioned cipher types:
- CRYPTO_ALG_TYPE_AKCIPHER Asymmetric cipher
+- CRYPTO_ALG_TYPE_SIG Asymmetric signature
+
- CRYPTO_ALG_TYPE_PCOMPRESS Enhanced version of
CRYPTO_ALG_TYPE_COMPRESS allowing for segmented compression /
decompression instead of performing the operation on one segment
diff --git a/Documentation/crypto/async-tx-api.rst b/Documentation/crypto/async-tx-api.rst
index bfc773991bdc..f88a7809385e 100644
--- a/Documentation/crypto/async-tx-api.rst
+++ b/Documentation/crypto/async-tx-api.rst
@@ -66,7 +66,7 @@ features surfaced as a result:
::
struct dma_async_tx_descriptor *
- async_<operation>(<op specific parameters>, struct async_submit ctl *submit)
+ async_<operation>(<op specific parameters>, struct async_submit_ctl *submit)
3.2 Supported operations
------------------------
@@ -150,38 +150,38 @@ of an operation.
Perform a xor->copy->xor operation where each operation depends on the
result from the previous operation::
- void callback(void *param)
- {
- struct completion *cmp = param;
+ #include <linux/async_tx.h>
- complete(cmp);
+ static void callback(void *param)
+ {
+ complete(param);
}
- void run_xor_copy_xor(struct page **xor_srcs,
- int xor_src_cnt,
- struct page *xor_dest,
- size_t xor_len,
- struct page *copy_src,
- struct page *copy_dest,
- size_t copy_len)
+ #define NDISKS 2
+
+ static void run_xor_copy_xor(struct page **xor_srcs,
+ struct page *xor_dest,
+ size_t xor_len,
+ struct page *copy_src,
+ struct page *copy_dest,
+ size_t copy_len)
{
struct dma_async_tx_descriptor *tx;
- addr_conv_t addr_conv[xor_src_cnt];
struct async_submit_ctl submit;
addr_conv_t addr_conv[NDISKS];
struct completion cmp;
init_async_submit(&submit, ASYNC_TX_XOR_DROP_DST, NULL, NULL, NULL,
addr_conv);
- tx = async_xor(xor_dest, xor_srcs, 0, xor_src_cnt, xor_len, &submit)
+ tx = async_xor(xor_dest, xor_srcs, 0, NDISKS, xor_len, &submit);
- submit->depend_tx = tx;
+ submit.depend_tx = tx;
tx = async_memcpy(copy_dest, copy_src, 0, 0, copy_len, &submit);
init_completion(&cmp);
init_async_submit(&submit, ASYNC_TX_XOR_DROP_DST | ASYNC_TX_ACK, tx,
callback, &cmp, addr_conv);
- tx = async_xor(xor_dest, xor_srcs, 0, xor_src_cnt, xor_len, &submit);
+ tx = async_xor(xor_dest, xor_srcs, 0, NDISKS, xor_len, &submit);
async_tx_issue_pending_all();
diff --git a/Documentation/crypto/crypto_engine.rst b/Documentation/crypto/crypto_engine.rst
index d562ea17d994..7ef850e28016 100644
--- a/Documentation/crypto/crypto_engine.rst
+++ b/Documentation/crypto/crypto_engine.rst
@@ -36,12 +36,6 @@ engine using ``crypto_engine_stop()`` and destroy the engine with
Before transferring any request, you have to fill the context enginectx by
providing functions for the following:
-* ``prepare_crypt_hardware``: Called once before any prepare functions are
- called.
-
-* ``unprepare_crypt_hardware``: Called once after all unprepare functions have
- been called.
-
* ``prepare_cipher_request``/``prepare_hash_request``: Called before each
corresponding request is performed. If some processing or other preparatory
work is required, do it here.
diff --git a/Documentation/crypto/devel-algos.rst b/Documentation/crypto/devel-algos.rst
index 3506899ef83e..9b7782f4f6e0 100644
--- a/Documentation/crypto/devel-algos.rst
+++ b/Documentation/crypto/devel-algos.rst
@@ -235,6 +235,4 @@ Specifics Of Asynchronous HASH Transformation
Some of the drivers will want to use the Generic ScatterWalk in case the
implementation needs to be fed separate chunks of the scatterlist which
-contains the input data. The buffer containing the resulting hash will
-always be properly aligned to .cra_alignmask so there is no need to
-worry about this.
+contains the input data.
diff --git a/Documentation/crypto/device_drivers/index.rst b/Documentation/crypto/device_drivers/index.rst
new file mode 100644
index 000000000000..c81d311ac61b
--- /dev/null
+++ b/Documentation/crypto/device_drivers/index.rst
@@ -0,0 +1,9 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Hardware Device Driver Specific Documentation
+---------------------------------------------
+
+.. toctree::
+ :maxdepth: 1
+
+ octeontx2
diff --git a/Documentation/crypto/device_drivers/octeontx2.rst b/Documentation/crypto/device_drivers/octeontx2.rst
new file mode 100644
index 000000000000..7e469b173ac8
--- /dev/null
+++ b/Documentation/crypto/device_drivers/octeontx2.rst
@@ -0,0 +1,25 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=========================
+octeontx2 devlink support
+=========================
+
+This document describes the devlink features implemented by the ``octeontx2 CPT``
+device drivers.
+
+Parameters
+==========
+
+The ``octeontx2`` driver implements the following driver-specific parameters.
+
+.. list-table:: Driver-specific parameters implemented
+ :widths: 5 5 5 85
+
+ * - Name
+ - Type
+ - Mode
+ - Description
+ * - ``t106_mode``
+ - u8
+ - runtime
+ - Used to configure CN10KA B0/CN10KB CPT to work as CN10KA A0/A1.
diff --git a/Documentation/crypto/index.rst b/Documentation/crypto/index.rst
index da5d5ad2bdf3..4ee667c446f9 100644
--- a/Documentation/crypto/index.rst
+++ b/Documentation/crypto/index.rst
@@ -9,11 +9,8 @@ This documentation outlines the Linux kernel crypto API with its
concepts, details about developing cipher implementations, employment of the API
for cryptographic use cases, as well as programming examples.
-.. class:: toc-title
-
- Table of contents
-
.. toctree::
+ :caption: Table of contents
:maxdepth: 2
intro
@@ -28,3 +25,6 @@ for cryptographic use cases, as well as programming examples.
api
api-samples
descore-readme
+ device_drivers/index
+ krb5
+ sha3
diff --git a/Documentation/crypto/krb5.rst b/Documentation/crypto/krb5.rst
new file mode 100644
index 000000000000..beffa0133446
--- /dev/null
+++ b/Documentation/crypto/krb5.rst
@@ -0,0 +1,262 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+===========================
+Kerberos V Cryptography API
+===========================
+
+.. Contents:
+
+ - Overview.
+ - Small Buffer.
+ - Encoding Type.
+ - Key Derivation.
+ - PRF+ Calculation.
+ - Kc, Ke And Ki Derivation.
+ - Crypto Functions.
+ - Preparation Functions.
+ - Encryption Mode.
+ - Checksum Mode.
+ - The krb5enc AEAD algorithm
+
+Overview
+========
+
+This API provides Kerberos 5-style cryptography for key derivation, encryption
+and checksumming for use in network filesystems and can be used to implement
+the low-level crypto that's needed for GSSAPI.
+
+The following crypto types are supported::
+
+ KRB5_ENCTYPE_AES128_CTS_HMAC_SHA1_96
+ KRB5_ENCTYPE_AES256_CTS_HMAC_SHA1_96
+ KRB5_ENCTYPE_AES128_CTS_HMAC_SHA256_128
+ KRB5_ENCTYPE_AES256_CTS_HMAC_SHA384_192
+ KRB5_ENCTYPE_CAMELLIA128_CTS_CMAC
+ KRB5_ENCTYPE_CAMELLIA256_CTS_CMAC
+
+ KRB5_CKSUMTYPE_HMAC_SHA1_96_AES128
+ KRB5_CKSUMTYPE_HMAC_SHA1_96_AES256
+ KRB5_CKSUMTYPE_CMAC_CAMELLIA128
+ KRB5_CKSUMTYPE_CMAC_CAMELLIA256
+ KRB5_CKSUMTYPE_HMAC_SHA256_128_AES128
+ KRB5_CKSUMTYPE_HMAC_SHA384_192_AES256
+
+The API can be included by::
+
+ #include <crypto/krb5.h>
+
+Small Buffer
+------------
+
+To pass small pieces of data about, such as keys, a buffer structure is
+defined, giving a pointer to the data and the size of that data::
+
+ struct krb5_buffer {
+ unsigned int len;
+ void *data;
+ };
+
+Encoding Type
+=============
+
+The encoding type is defined by the following structure::
+
+ struct krb5_enctype {
+ int etype;
+ int ctype;
+ const char *name;
+ u16 key_bytes;
+ u16 key_len;
+ u16 Kc_len;
+ u16 Ke_len;
+ u16 Ki_len;
+ u16 prf_len;
+ u16 block_len;
+ u16 conf_len;
+ u16 cksum_len;
+ ...
+ };
+
+The fields of interest to the user of the API are as follows:
+
+ * ``etype`` and ``ctype`` indicate the protocol number for this encoding
+ type for encryption and checksumming respectively. They hold
+ ``KRB5_ENCTYPE_*`` and ``KRB5_CKSUMTYPE_*`` constants.
+
+ * ``name`` is the formal name of the encoding.
+
+ * ``key_len`` and ``key_bytes`` are the input key length and the derived key
+ length. (I think they only differ for DES, which isn't supported here).
+
+ * ``Kc_len``, ``Ke_len`` and ``Ki_len`` are the sizes of the derived Kc, Ke
+ and Ki keys. Kc is used for in checksum mode; Ke and Ki are used in
+ encryption mode.
+
+ * ``prf_len`` is the size of the result from the PRF+ function calculation.
+
+ * ``block_len``, ``conf_len`` and ``cksum_len`` are the encryption block
+ length, confounder length and checksum length respectively. All three are
+ used in encryption mode, but only the checksum length is used in checksum
+ mode.
+
+The encoding type is looked up by number using the following function::
+
+ const struct krb5_enctype *crypto_krb5_find_enctype(u32 enctype);
+
+Key Derivation
+==============
+
+Once the application has selected an encryption type, the keys that will be
+used to do the actual crypto can be derived from the transport key.
+
+PRF+ Calculation
+----------------
+
+To aid in key derivation, a function to calculate the Kerberos GSSAPI
+mechanism's PRF+ is provided::
+
+ int crypto_krb5_calc_PRFplus(const struct krb5_enctype *krb5,
+ const struct krb5_buffer *K,
+ unsigned int L,
+ const struct krb5_buffer *S,
+ struct krb5_buffer *result,
+ gfp_t gfp);
+
+This can be used to derive the transport key from a source key plus additional
+data to limit its use.
+
+Crypto Functions
+================
+
+Once the keys have been derived, crypto can be performed on the data. The
+caller must leave gaps in the buffer for the storage of the confounder (if
+needed) and the checksum when preparing a message for transmission. An enum
+and a pair of functions are provided to aid in this::
+
+ enum krb5_crypto_mode {
+ KRB5_CHECKSUM_MODE,
+ KRB5_ENCRYPT_MODE,
+ };
+
+ size_t crypto_krb5_how_much_buffer(const struct krb5_enctype *krb5,
+ enum krb5_crypto_mode mode,
+ size_t data_size, size_t *_offset);
+
+ size_t crypto_krb5_how_much_data(const struct krb5_enctype *krb5,
+ enum krb5_crypto_mode mode,
+ size_t *_buffer_size, size_t *_offset);
+
+All these functions take the encoding type and an indication the mode of crypto
+(checksum-only or full encryption).
+
+The first function returns how big the buffer will need to be to house a given
+amount of data; the second function returns how much data will fit in a buffer
+of a particular size, and adjusts down the size of the required buffer
+accordingly. In both cases, the offset of the data within the buffer is also
+returned.
+
+When a message has been received, the location and size of the data with the
+message can be determined by calling::
+
+ void crypto_krb5_where_is_the_data(const struct krb5_enctype *krb5,
+ enum krb5_crypto_mode mode,
+ size_t *_offset, size_t *_len);
+
+The caller provides the offset and length of the message to the function, which
+then alters those values to indicate the region containing the data (plus any
+padding). It is up to the caller to determine how much padding there is.
+
+Preparation Functions
+---------------------
+
+Two functions are provided to allocated and prepare a crypto object for use by
+the action functions::
+
+ struct crypto_aead *
+ crypto_krb5_prepare_encryption(const struct krb5_enctype *krb5,
+ const struct krb5_buffer *TK,
+ u32 usage, gfp_t gfp);
+ struct crypto_shash *
+ crypto_krb5_prepare_checksum(const struct krb5_enctype *krb5,
+ const struct krb5_buffer *TK,
+ u32 usage, gfp_t gfp);
+
+Both of these functions take the encoding type, the transport key and the usage
+value used to derive the appropriate subkey(s). They create an appropriate
+crypto object, an AEAD template for encryption and a synchronous hash for
+checksumming, set the key(s) on it and configure it. The caller is expected to
+pass these handles to the action functions below.
+
+Encryption Mode
+---------------
+
+A pair of functions are provided to encrypt and decrypt a message::
+
+ ssize_t crypto_krb5_encrypt(const struct krb5_enctype *krb5,
+ struct crypto_aead *aead,
+ struct scatterlist *sg, unsigned int nr_sg,
+ size_t sg_len,
+ size_t data_offset, size_t data_len,
+ bool preconfounded);
+ int crypto_krb5_decrypt(const struct krb5_enctype *krb5,
+ struct crypto_aead *aead,
+ struct scatterlist *sg, unsigned int nr_sg,
+ size_t *_offset, size_t *_len);
+
+In both cases, the input and output buffers are indicated by the same
+scatterlist.
+
+For the encryption function, the output buffer may be larger than is needed
+(the amount of output generated is returned) and the location and size of the
+data are indicated (which must match the encoding). If no confounder is set,
+the function will insert one.
+
+For the decryption function, the offset and length of the message in buffer are
+supplied and these are shrunk to fit the data. The decryption function will
+verify any checksums within the message and give an error if they don't match.
+
+Checksum Mode
+-------------
+
+A pair of function are provided to generate the checksum on a message and to
+verify that checksum::
+
+ ssize_t crypto_krb5_get_mic(const struct krb5_enctype *krb5,
+ struct crypto_shash *shash,
+ const struct krb5_buffer *metadata,
+ struct scatterlist *sg, unsigned int nr_sg,
+ size_t sg_len,
+ size_t data_offset, size_t data_len);
+ int crypto_krb5_verify_mic(const struct krb5_enctype *krb5,
+ struct crypto_shash *shash,
+ const struct krb5_buffer *metadata,
+ struct scatterlist *sg, unsigned int nr_sg,
+ size_t *_offset, size_t *_len);
+
+In both cases, the input and output buffers are indicated by the same
+scatterlist. Additional metadata can be passed in which will get added to the
+hash before the data.
+
+For the get_mic function, the output buffer may be larger than is needed (the
+amount of output generated is returned) and the location and size of the data
+are indicated (which must match the encoding).
+
+For the verification function, the offset and length of the message in buffer
+are supplied and these are shrunk to fit the data. An error will be returned
+if the checksums don't match.
+
+The krb5enc AEAD algorithm
+==========================
+
+A template AEAD crypto algorithm, called "krb5enc", is provided that hashes the
+plaintext before encrypting it (the reverse of authenc). The handle returned
+by ``crypto_krb5_prepare_encryption()`` may be one of these, but there's no
+requirement for the user of this API to interact with it directly.
+
+For reference, its key format begins with a BE32 of the format number. Only
+format 1 is provided and that continues with a BE32 of the Ke key length
+followed by a BE32 of the Ki key length, followed by the bytes from the Ke key
+and then the Ki key.
+
+Using specifically ordered words means that the static test data doesn't
+require byteswapping.
diff --git a/Documentation/crypto/sha3.rst b/Documentation/crypto/sha3.rst
new file mode 100644
index 000000000000..37640f295118
--- /dev/null
+++ b/Documentation/crypto/sha3.rst
@@ -0,0 +1,130 @@
+.. SPDX-License-Identifier: GPL-2.0-or-later
+
+==========================
+SHA-3 Algorithm Collection
+==========================
+
+.. contents::
+
+Overview
+========
+
+The SHA-3 family of algorithms, as specified in NIST FIPS-202 [1]_, contains six
+algorithms based on the Keccak sponge function. The differences between them
+are: the "rate" (how much of the state buffer gets updated with new data between
+invocations of the Keccak function and analogous to the "block size"), what
+domain separation suffix gets appended to the input data, and how much output
+data is extracted at the end. The Keccak sponge function is designed such that
+arbitrary amounts of output can be obtained for certain algorithms.
+
+Four digest algorithms are provided:
+
+ - SHA3-224
+ - SHA3-256
+ - SHA3-384
+ - SHA3-512
+
+Additionally, two Extendable-Output Functions (XOFs) are provided:
+
+ - SHAKE128
+ - SHAKE256
+
+The SHA-3 library API supports all six of these algorithms. The four digest
+algorithms are also supported by the crypto_shash and crypto_ahash APIs.
+
+This document describes the SHA-3 library API.
+
+
+Digests
+=======
+
+The following functions compute SHA-3 digests::
+
+ void sha3_224(const u8 *in, size_t in_len, u8 out[SHA3_224_DIGEST_SIZE]);
+ void sha3_256(const u8 *in, size_t in_len, u8 out[SHA3_256_DIGEST_SIZE]);
+ void sha3_384(const u8 *in, size_t in_len, u8 out[SHA3_384_DIGEST_SIZE]);
+ void sha3_512(const u8 *in, size_t in_len, u8 out[SHA3_512_DIGEST_SIZE]);
+
+For users that need to pass in data incrementally, an incremental API is also
+provided. The incremental API uses the following struct::
+
+ struct sha3_ctx { ... };
+
+Initialization is done with one of::
+
+ void sha3_224_init(struct sha3_ctx *ctx);
+ void sha3_256_init(struct sha3_ctx *ctx);
+ void sha3_384_init(struct sha3_ctx *ctx);
+ void sha3_512_init(struct sha3_ctx *ctx);
+
+Input data is then added with any number of calls to::
+
+ void sha3_update(struct sha3_ctx *ctx, const u8 *in, size_t in_len);
+
+Finally, the digest is generated using::
+
+ void sha3_final(struct sha3_ctx *ctx, u8 *out);
+
+which also zeroizes the context. The length of the digest is determined by the
+initialization function that was called.
+
+
+Extendable-Output Functions
+===========================
+
+The following functions compute the SHA-3 extendable-output functions (XOFs)::
+
+ void shake128(const u8 *in, size_t in_len, u8 *out, size_t out_len);
+ void shake256(const u8 *in, size_t in_len, u8 *out, size_t out_len);
+
+For users that need to provide the input data incrementally and/or receive the
+output data incrementally, an incremental API is also provided. The incremental
+API uses the following struct::
+
+ struct shake_ctx { ... };
+
+Initialization is done with one of::
+
+ void shake128_init(struct shake_ctx *ctx);
+ void shake256_init(struct shake_ctx *ctx);
+
+Input data is then added with any number of calls to::
+
+ void shake_update(struct shake_ctx *ctx, const u8 *in, size_t in_len);
+
+Finally, the output data is extracted with any number of calls to::
+
+ void shake_squeeze(struct shake_ctx *ctx, u8 *out, size_t out_len);
+
+and telling it how much data should be extracted. Note that performing multiple
+squeezes, with the output laid consecutively in a buffer, gets exactly the same
+output as doing a single squeeze for the combined amount over the same buffer.
+
+More input data cannot be added after squeezing has started.
+
+Once all the desired output has been extracted, zeroize the context::
+
+ void shake_zeroize_ctx(struct shake_ctx *ctx);
+
+
+Testing
+=======
+
+To test the SHA-3 code, use sha3_kunit (CONFIG_CRYPTO_LIB_SHA3_KUNIT_TEST).
+
+Since the SHA-3 algorithms are FIPS-approved, when the kernel is booted in FIPS
+mode the SHA-3 library also performs a simple self-test. This is purely to meet
+a FIPS requirement. Normal testing done by kernel developers and integrators
+should use the much more comprehensive KUnit test suite instead.
+
+
+References
+==========
+
+.. [1] https://nvlpubs.nist.gov/nistpubs/FIPS/NIST.FIPS.202.pdf
+
+
+API Function Reference
+======================
+
+.. kernel-doc:: include/crypto/sha3.h
diff --git a/Documentation/crypto/userspace-if.rst b/Documentation/crypto/userspace-if.rst
index f80f243e227e..8158b363cd98 100644
--- a/Documentation/crypto/userspace-if.rst
+++ b/Documentation/crypto/userspace-if.rst
@@ -302,10 +302,9 @@ follows:
Depending on the RNG type, the RNG must be seeded. The seed is provided
-using the setsockopt interface to set the key. For example, the
-ansi_cprng requires a seed. The DRBGs do not require a seed, but may be
-seeded. The seed is also known as a *Personalization String* in NIST SP 800-90A
-standard.
+using the setsockopt interface to set the key. The SP800-90A DRBGs do
+not require a seed, but may be seeded. The seed is also known as a
+*Personalization String* in NIST SP 800-90A standard.
Using the read()/recvmsg() system calls, random numbers can be obtained.
The kernel generates at most 128 bytes in one call. If user space
diff --git a/Documentation/dev-tools/autofdo.rst b/Documentation/dev-tools/autofdo.rst
new file mode 100644
index 000000000000..bcf06e7d6ffa
--- /dev/null
+++ b/Documentation/dev-tools/autofdo.rst
@@ -0,0 +1,168 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+===================================
+Using AutoFDO with the Linux kernel
+===================================
+
+This enables AutoFDO build support for the kernel when using
+the Clang compiler. AutoFDO (Auto-Feedback-Directed Optimization)
+is a type of profile-guided optimization (PGO) used to enhance the
+performance of binary executables. It gathers information about the
+frequency of execution of various code paths within a binary using
+hardware sampling. This data is then used to guide the compiler's
+optimization decisions, resulting in a more efficient binary. AutoFDO
+is a powerful optimization technique, and data indicates that it can
+significantly improve kernel performance. It's especially beneficial
+for workloads affected by front-end stalls.
+
+For AutoFDO builds, unlike non-FDO builds, the user must supply a
+profile. Acquiring an AutoFDO profile can be done in several ways.
+AutoFDO profiles are created by converting hardware sampling using
+the "perf" tool. It is crucial that the workload used to create these
+perf files is representative; they must exhibit runtime
+characteristics similar to the workloads that are intended to be
+optimized. Failure to do so will result in the compiler optimizing
+for the wrong objective.
+
+The AutoFDO profile often encapsulates the program's behavior. If the
+performance-critical codes are architecture-independent, the profile
+can be applied across platforms to achieve performance gains. For
+instance, using the profile generated on Intel architecture to build
+a kernel for AMD architecture can also yield performance improvements.
+
+There are two methods for acquiring a representative profile:
+(1) Sample real workloads using a production environment.
+(2) Generate the profile using a representative load test.
+When enabling the AutoFDO build configuration without providing an
+AutoFDO profile, the compiler only modifies the dwarf information in
+the kernel without impacting runtime performance. It's advisable to
+use a kernel binary built with the same AutoFDO configuration to
+collect the perf profile. While it's possible to use a kernel built
+with different options, it may result in inferior performance.
+
+One can collect profiles using AutoFDO build for the previous kernel.
+AutoFDO employs relative line numbers to match the profiles, offering
+some tolerance for source changes. This mode is commonly used in a
+production environment for profile collection.
+
+In a profile collection based on a load test, the AutoFDO collection
+process consists of the following steps:
+
+#. Initial build: The kernel is built with AutoFDO options
+ without a profile.
+
+#. Profiling: The above kernel is then run with a representative
+ workload to gather execution frequency data. This data is
+ collected using hardware sampling, via perf. AutoFDO is most
+ effective on platforms supporting advanced PMU features like
+ LBR on Intel machines.
+
+#. AutoFDO profile generation: Perf output file is converted to
+ the AutoFDO profile via offline tools.
+
+The support requires a Clang compiler LLVM 17 or later.
+
+Preparation
+===========
+
+Configure the kernel with::
+
+ CONFIG_AUTOFDO_CLANG=y
+
+Customization
+=============
+
+The default CONFIG_AUTOFDO_CLANG setting covers kernel space objects for
+AutoFDO builds. One can, however, enable or disable AutoFDO build for
+individual files and directories by adding a line similar to the following
+to the respective kernel Makefile:
+
+- For enabling a single file (e.g. foo.o) ::
+
+ AUTOFDO_PROFILE_foo.o := y
+
+- For enabling all files in one directory ::
+
+ AUTOFDO_PROFILE := y
+
+- For disabling one file ::
+
+ AUTOFDO_PROFILE_foo.o := n
+
+- For disabling all files in one directory ::
+
+ AUTOFDO_PROFILE := n
+
+Workflow
+========
+
+Here is an example workflow for AutoFDO kernel:
+
+1) Build the kernel on the host machine with LLVM enabled,
+ for example, ::
+
+ $ make menuconfig LLVM=1
+
+ Turn on AutoFDO build config::
+
+ CONFIG_AUTOFDO_CLANG=y
+
+ With a configuration that with LLVM enabled, use the following command::
+
+ $ scripts/config -e AUTOFDO_CLANG
+
+ After getting the config, build with ::
+
+ $ make LLVM=1
+
+2) Install the kernel on the test machine.
+
+3) Run the load tests. The '-c' option in perf specifies the sample
+ event period. We suggest using a suitable prime number, like 500009,
+ for this purpose.
+
+ - For Intel platforms::
+
+ $ perf record -e BR_INST_RETIRED.NEAR_TAKEN:k -a -N -b -c <count> -o <perf_file> -- <loadtest>
+
+ - For AMD platforms:
+
+ The supported systems are: Zen3 with BRS, or Zen4 with amd_lbr_v2. To check,
+
+ For Zen3::
+
+ $ cat /proc/cpuinfo | grep " brs"
+
+ For Zen4::
+
+ $ cat /proc/cpuinfo | grep amd_lbr_v2
+
+ The following command generated the perf data file::
+
+ $ perf record --pfm-events RETIRED_TAKEN_BRANCH_INSTRUCTIONS:k -a -N -b -c <count> -o <perf_file> -- <loadtest>
+
+4) (Optional) Download the raw perf file to the host machine.
+
+5) To generate an AutoFDO profile, two offline tools are available:
+ create_llvm_prof and llvm_profgen. The create_llvm_prof tool is part
+ of the AutoFDO project and can be found on GitHub
+ (https://github.com/google/autofdo), version v0.30.1 or later.
+ The llvm_profgen tool is included in the LLVM compiler itself. It's
+ important to note that the version of llvm_profgen doesn't need to match
+ the version of Clang. It needs to be the LLVM 19 release of Clang
+ or later, or just from the LLVM trunk. ::
+
+ $ llvm-profgen --kernel --binary=<vmlinux> --perfdata=<perf_file> -o <profile_file>
+
+ or ::
+
+ $ create_llvm_prof --binary=<vmlinux> --profile=<perf_file> --format=extbinary --out=<profile_file>
+
+ Note that multiple AutoFDO profile files can be merged into one via::
+
+ $ llvm-profdata merge -o <profile_file> <profile_1> <profile_2> ... <profile_n>
+
+6) Rebuild the kernel using the AutoFDO profile file with the same config as step 1,
+ (Note CONFIG_AUTOFDO_CLANG needs to be enabled)::
+
+ $ make LLVM=1 CLANG_AUTOFDO_PROFILE=<profile_file>
diff --git a/Documentation/dev-tools/checkpatch.rst b/Documentation/dev-tools/checkpatch.rst
index c3389c6f3838..fa2988dd4657 100644
--- a/Documentation/dev-tools/checkpatch.rst
+++ b/Documentation/dev-tools/checkpatch.rst
@@ -168,7 +168,7 @@ Available options:
- --fix
- This is an EXPERIMENTAL feature. If correctable errors exists, a file
+ This is an EXPERIMENTAL feature. If correctable errors exist, a file
<inputfile>.EXPERIMENTAL-checkpatch-fixes is created which has the
automatically fixable errors corrected.
@@ -181,7 +181,7 @@ Available options:
- --ignore-perl-version
- Override checking of perl version. Runtime errors maybe encountered after
+ Override checking of perl version. Runtime errors may be encountered after
enabling this flag if the perl version does not meet the minimum specified.
- --codespell
@@ -342,24 +342,6 @@ API usage
See: https://www.kernel.org/doc/html/latest/RCU/whatisRCU.html#full-list-of-rcu-apis
- **DEPRECATED_VARIABLE**
- EXTRA_{A,C,CPP,LD}FLAGS are deprecated and should be replaced by the new
- flags added via commit f77bf01425b1 ("kbuild: introduce ccflags-y,
- asflags-y and ldflags-y").
-
- The following conversion scheme maybe used::
-
- EXTRA_AFLAGS -> asflags-y
- EXTRA_CFLAGS -> ccflags-y
- EXTRA_CPPFLAGS -> cppflags-y
- EXTRA_LDFLAGS -> ldflags-y
-
- See:
-
- 1. https://lore.kernel.org/lkml/20070930191054.GA15876@uranus.ravnborg.org/
- 2. https://lore.kernel.org/lkml/1313384834-24433-12-git-send-email-lacombar@gmail.com/
- 3. https://www.kernel.org/doc/html/latest/kbuild/makefiles.html#compilation-flags
-
**DEVICE_ATTR_FUNCTIONS**
The function names used in DEVICE_ATTR is unusual.
Typically, the store and show functions are used with <attr>_store and
@@ -470,8 +452,6 @@ API usage
usleep_range() should be preferred over udelay(). The proper way of
using usleep_range() is mentioned in the kernel docs.
- See: https://www.kernel.org/doc/html/latest/timers/timers-howto.html#delays-information-on-the-various-kernel-delay-sleep-mechanisms
-
Comments
--------
@@ -481,16 +461,9 @@ Comments
line comments is::
/*
- * This is the preferred style
- * for multi line comments.
- */
-
- The networking comment style is a bit different, with the first line
- not empty like the former::
-
- /* This is the preferred comment style
- * for files in net/ and drivers/net/
- */
+ * This is the preferred style
+ * for multi line comments.
+ */
See: https://www.kernel.org/doc/html/latest/process/coding-style.html#commenting
@@ -515,6 +488,15 @@ Comments
See: https://lore.kernel.org/lkml/20131006222342.GT19510@leaf/
+ **UNCOMMENTED_RGMII_MODE**
+ Historically, the RGMII PHY modes specified in Device Trees have been
+ used inconsistently, often referring to the usage of delays on the PHY
+ side rather than describing the board.
+
+ PHY modes "rgmii", "rgmii-rxid" and "rgmii-txid" modes require the clock
+ signal to be delayed on the PCB; this unusual configuration should be
+ described in a comment. If they are not (meaning that the delay is realized
+ internally in the MAC or PHY), "rgmii-id" is the correct PHY mode.
Commit message
--------------
@@ -906,6 +888,20 @@ Macros, Attributes and Symbols
See: https://lore.kernel.org/lkml/1399671106.2912.21.camel@joe-AO725/
+ **MACRO_ARG_UNUSED**
+ If function-like macros do not utilize a parameter, it might result
+ in a build warning. We advocate for utilizing static inline functions
+ to replace such macros.
+ For example, for a macro such as the one below::
+
+ #define test(a) do { } while (0)
+
+ there would be a warning like below::
+
+ WARNING: Argument 'a' is not used in function-like macro.
+
+ See: https://www.kernel.org/doc/html/latest/process/coding-style.html#macros-enums-and-rtl
+
**SINGLE_STATEMENT_DO_WHILE_MACRO**
For the multi-statement macros, it is necessary to use the do-while
loop to avoid unpredictable code paths. The do-while loop helps to
@@ -1242,6 +1238,16 @@ Others
The patch file does not appear to be in unified-diff format. Please
regenerate the patch file before sending it to the maintainer.
+ **PLACEHOLDER_USE**
+ Detects unhandled placeholder text left in cover letters or commit headers/logs.
+ Common placeholders include lines like::
+
+ *** SUBJECT HERE ***
+ *** BLURB HERE ***
+
+ These typically come from autogenerated templates. Replace them with a proper
+ subject and description before sending.
+
**PRINTF_0XDECIMAL**
Prefixing 0x with decimal output is defective and should be corrected.
diff --git a/Documentation/dev-tools/checkuapi.rst b/Documentation/dev-tools/checkuapi.rst
new file mode 100644
index 000000000000..9072f21b50b0
--- /dev/null
+++ b/Documentation/dev-tools/checkuapi.rst
@@ -0,0 +1,477 @@
+.. SPDX-License-Identifier: GPL-2.0-only
+
+============
+UAPI Checker
+============
+
+The UAPI checker (``scripts/check-uapi.sh``) is a shell script which
+checks UAPI header files for userspace backwards-compatibility across
+the git tree.
+
+Options
+=======
+
+This section will describe the options with which ``check-uapi.sh``
+can be run.
+
+Usage::
+
+ check-uapi.sh [-b BASE_REF] [-p PAST_REF] [-j N] [-l ERROR_LOG] [-i] [-q] [-v]
+
+Available options::
+
+ -b BASE_REF Base git reference to use for comparison. If unspecified or empty,
+ will use any dirty changes in tree to UAPI files. If there are no
+ dirty changes, HEAD will be used.
+ -p PAST_REF Compare BASE_REF to PAST_REF (e.g. -p v6.1). If unspecified or empty,
+ will use BASE_REF^1. Must be an ancestor of BASE_REF. Only headers
+ that exist on PAST_REF will be checked for compatibility.
+ -j JOBS Number of checks to run in parallel (default: number of CPU cores).
+ -l ERROR_LOG Write error log to file (default: no error log is generated).
+ -i Ignore ambiguous changes that may or may not break UAPI compatibility.
+ -q Quiet operation.
+ -v Verbose operation (print more information about each header being checked).
+
+Environmental args::
+
+ ABIDIFF Custom path to abidiff binary
+ CC C compiler (default is "gcc")
+ ARCH Target architecture of C compiler (default is host arch)
+
+Exit codes::
+
+ 0) Success
+ 1) ABI difference detected
+ 2) Prerequisite not met
+
+Examples
+========
+
+Basic Usage
+-----------
+
+First, let's try making a change to a UAPI header file that obviously
+won't break userspace::
+
+ cat << 'EOF' | patch -l -p1
+ --- a/include/uapi/linux/acct.h
+ +++ b/include/uapi/linux/acct.h
+ @@ -21,7 +21,9 @@
+ #include <asm/param.h>
+ #include <asm/byteorder.h>
+
+ -/*
+ +#define FOO
+ +
+ +/*
+ * comp_t is a 16-bit "floating" point number with a 3-bit base 8
+ * exponent and a 13-bit fraction.
+ * comp2_t is 24-bit with 5-bit base 2 exponent and 20 bit fraction
+ diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
+ EOF
+
+Now, let's use the script to validate::
+
+ % ./scripts/check-uapi.sh
+ Installing user-facing UAPI headers from dirty tree... OK
+ Installing user-facing UAPI headers from HEAD... OK
+ Checking changes to UAPI headers between HEAD and dirty tree...
+ All 912 UAPI headers compatible with x86 appear to be backwards compatible
+
+Let's add another change that *might* break userspace::
+
+ cat << 'EOF' | patch -l -p1
+ --- a/include/uapi/linux/bpf.h
+ +++ b/include/uapi/linux/bpf.h
+ @@ -74,7 +74,7 @@ struct bpf_insn {
+ __u8 dst_reg:4; /* dest register */
+ __u8 src_reg:4; /* source register */
+ __s16 off; /* signed offset */
+ - __s32 imm; /* signed immediate constant */
+ + __u32 imm; /* unsigned immediate constant */
+ };
+
+ /* Key of an a BPF_MAP_TYPE_LPM_TRIE entry */
+ EOF
+
+The script will catch this::
+
+ % ./scripts/check-uapi.sh
+ Installing user-facing UAPI headers from dirty tree... OK
+ Installing user-facing UAPI headers from HEAD... OK
+ Checking changes to UAPI headers between HEAD and dirty tree...
+ ==== ABI differences detected in include/linux/bpf.h from HEAD -> dirty tree ====
+ [C] 'struct bpf_insn' changed:
+ type size hasn't changed
+ 1 data member change:
+ type of '__s32 imm' changed:
+ typedef name changed from __s32 to __u32 at int-ll64.h:27:1
+ underlying type 'int' changed:
+ type name changed from 'int' to 'unsigned int'
+ type size hasn't changed
+ ==================================================================================
+
+ error - 1/912 UAPI headers compatible with x86 appear _not_ to be backwards compatible
+
+In this case, the script is reporting the type change because it could
+break a userspace program that passes in a negative number. Now, let's
+say you know that no userspace program could possibly be using a negative
+value in ``imm``, so changing to an unsigned type there shouldn't hurt
+anything. You can pass the ``-i`` flag to the script to ignore changes
+in which the userspace backwards compatibility is ambiguous::
+
+ % ./scripts/check-uapi.sh -i
+ Installing user-facing UAPI headers from dirty tree... OK
+ Installing user-facing UAPI headers from HEAD... OK
+ Checking changes to UAPI headers between HEAD and dirty tree...
+ All 912 UAPI headers compatible with x86 appear to be backwards compatible
+
+Now, let's make a similar change that *will* break userspace::
+
+ cat << 'EOF' | patch -l -p1
+ --- a/include/uapi/linux/bpf.h
+ +++ b/include/uapi/linux/bpf.h
+ @@ -71,8 +71,8 @@ enum {
+
+ struct bpf_insn {
+ __u8 code; /* opcode */
+ - __u8 dst_reg:4; /* dest register */
+ __u8 src_reg:4; /* source register */
+ + __u8 dst_reg:4; /* dest register */
+ __s16 off; /* signed offset */
+ __s32 imm; /* signed immediate constant */
+ };
+ EOF
+
+Since we're re-ordering an existing struct member, there's no ambiguity,
+and the script will report the breakage even if you pass ``-i``::
+
+ % ./scripts/check-uapi.sh -i
+ Installing user-facing UAPI headers from dirty tree... OK
+ Installing user-facing UAPI headers from HEAD... OK
+ Checking changes to UAPI headers between HEAD and dirty tree...
+ ==== ABI differences detected in include/linux/bpf.h from HEAD -> dirty tree ====
+ [C] 'struct bpf_insn' changed:
+ type size hasn't changed
+ 2 data member changes:
+ '__u8 dst_reg' offset changed from 8 to 12 (in bits) (by +4 bits)
+ '__u8 src_reg' offset changed from 12 to 8 (in bits) (by -4 bits)
+ ==================================================================================
+
+ error - 1/912 UAPI headers compatible with x86 appear _not_ to be backwards compatible
+
+Let's commit the breaking change, then commit the innocuous change::
+
+ % git commit -m 'Breaking UAPI change' include/uapi/linux/bpf.h
+ [detached HEAD f758e574663a] Breaking UAPI change
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+ % git commit -m 'Innocuous UAPI change' include/uapi/linux/acct.h
+ [detached HEAD 2e87df769081] Innocuous UAPI change
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+Now, let's run the script again with no arguments::
+
+ % ./scripts/check-uapi.sh
+ Installing user-facing UAPI headers from HEAD... OK
+ Installing user-facing UAPI headers from HEAD^1... OK
+ Checking changes to UAPI headers between HEAD^1 and HEAD...
+ All 912 UAPI headers compatible with x86 appear to be backwards compatible
+
+It doesn't catch any breaking change because, by default, it only
+compares ``HEAD`` to ``HEAD^1``. The breaking change was committed on
+``HEAD~2``. If we wanted the search scope to go back further, we'd have to
+use the ``-p`` option to pass a different past reference. In this case,
+let's pass ``-p HEAD~2`` to the script so it checks UAPI changes between
+``HEAD~2`` and ``HEAD``::
+
+ % ./scripts/check-uapi.sh -p HEAD~2
+ Installing user-facing UAPI headers from HEAD... OK
+ Installing user-facing UAPI headers from HEAD~2... OK
+ Checking changes to UAPI headers between HEAD~2 and HEAD...
+ ==== ABI differences detected in include/linux/bpf.h from HEAD~2 -> HEAD ====
+ [C] 'struct bpf_insn' changed:
+ type size hasn't changed
+ 2 data member changes:
+ '__u8 dst_reg' offset changed from 8 to 12 (in bits) (by +4 bits)
+ '__u8 src_reg' offset changed from 12 to 8 (in bits) (by -4 bits)
+ ==============================================================================
+
+ error - 1/912 UAPI headers compatible with x86 appear _not_ to be backwards compatible
+
+Alternatively, we could have also run with ``-b HEAD~``. This would set the
+base reference to ``HEAD~`` so then the script would compare it to ``HEAD~^1``.
+
+Architecture-specific Headers
+-----------------------------
+
+Consider this change::
+
+ cat << 'EOF' | patch -l -p1
+ --- a/arch/arm64/include/uapi/asm/sigcontext.h
+ +++ b/arch/arm64/include/uapi/asm/sigcontext.h
+ @@ -70,6 +70,7 @@ struct sigcontext {
+ struct _aarch64_ctx {
+ __u32 magic;
+ __u32 size;
+ + __u32 new_var;
+ };
+
+ #define FPSIMD_MAGIC 0x46508001
+ EOF
+
+This is a change to an arm64-specific UAPI header file. In this example, I'm
+running the script from an x86 machine with an x86 compiler, so, by default,
+the script only checks x86-compatible UAPI header files::
+
+ % ./scripts/check-uapi.sh
+ Installing user-facing UAPI headers from dirty tree... OK
+ Installing user-facing UAPI headers from HEAD... OK
+ No changes to UAPI headers were applied between HEAD and dirty tree
+
+With an x86 compiler, we can't check header files in ``arch/arm64``, so the
+script doesn't even try.
+
+If we want to check the header file, we'll have to use an arm64 compiler and
+set ``ARCH`` accordingly::
+
+ % CC=aarch64-linux-gnu-gcc ARCH=arm64 ./scripts/check-uapi.sh
+ Installing user-facing UAPI headers from dirty tree... OK
+ Installing user-facing UAPI headers from HEAD... OK
+ Checking changes to UAPI headers between HEAD and dirty tree...
+ ==== ABI differences detected in include/asm/sigcontext.h from HEAD -> dirty tree ====
+ [C] 'struct _aarch64_ctx' changed:
+ type size changed from 64 to 96 (in bits)
+ 1 data member insertion:
+ '__u32 new_var', at offset 64 (in bits) at sigcontext.h:73:1
+ -- snip --
+ [C] 'struct zt_context' changed:
+ type size changed from 128 to 160 (in bits)
+ 2 data member changes (1 filtered):
+ '__u16 nregs' offset changed from 64 to 96 (in bits) (by +32 bits)
+ '__u16 __reserved[3]' offset changed from 80 to 112 (in bits) (by +32 bits)
+ =======================================================================================
+
+ error - 1/884 UAPI headers compatible with arm64 appear _not_ to be backwards compatible
+
+We can see with ``ARCH`` and ``CC`` set properly for the file, the ABI
+change is reported properly. Also notice that the total number of UAPI
+header files checked by the script changes. This is because the number
+of headers installed for arm64 platforms is different than x86.
+
+Cross-Dependency Breakages
+--------------------------
+
+Consider this change::
+
+ cat << 'EOF' | patch -l -p1
+ --- a/include/uapi/linux/types.h
+ +++ b/include/uapi/linux/types.h
+ @@ -52,7 +52,7 @@ typedef __u32 __bitwise __wsum;
+ #define __aligned_be64 __be64 __attribute__((aligned(8)))
+ #define __aligned_le64 __le64 __attribute__((aligned(8)))
+
+ -typedef unsigned __bitwise __poll_t;
+ +typedef unsigned short __bitwise __poll_t;
+
+ #endif /* __ASSEMBLY__ */
+ #endif /* _UAPI_LINUX_TYPES_H */
+ EOF
+
+Here, we're changing a ``typedef`` in ``types.h``. This doesn't break
+a UAPI in ``types.h``, but other UAPIs in the tree may break due to
+this change::
+
+ % ./scripts/check-uapi.sh
+ Installing user-facing UAPI headers from dirty tree... OK
+ Installing user-facing UAPI headers from HEAD... OK
+ Checking changes to UAPI headers between HEAD and dirty tree...
+ ==== ABI differences detected in include/linux/eventpoll.h from HEAD -> dirty tree ====
+ [C] 'struct epoll_event' changed:
+ type size changed from 96 to 80 (in bits)
+ 2 data member changes:
+ type of '__poll_t events' changed:
+ underlying type 'unsigned int' changed:
+ type name changed from 'unsigned int' to 'unsigned short int'
+ type size changed from 32 to 16 (in bits)
+ '__u64 data' offset changed from 32 to 16 (in bits) (by -16 bits)
+ ========================================================================================
+ include/linux/eventpoll.h did not change between HEAD and dirty tree...
+ It's possible a change to one of the headers it includes caused this error:
+ #include <linux/fcntl.h>
+ #include <linux/types.h>
+
+Note that the script noticed the failing header file did not change,
+so it assumes one of its includes must have caused the breakage. Indeed,
+we can see ``linux/types.h`` is used from ``eventpoll.h``.
+
+UAPI Header Removals
+--------------------
+
+Consider this change::
+
+ cat << 'EOF' | patch -l -p1
+ diff --git a/include/uapi/asm-generic/Kbuild b/include/uapi/asm-generic/Kbuild
+ index ebb180aac74e..a9c88b0a8b3b 100644
+ --- a/include/uapi/asm-generic/Kbuild
+ +++ b/include/uapi/asm-generic/Kbuild
+ @@ -31,6 +31,6 @@ mandatory-y += stat.h
+ mandatory-y += statfs.h
+ mandatory-y += swab.h
+ mandatory-y += termbits.h
+ -mandatory-y += termios.h
+ +#mandatory-y += termios.h
+ mandatory-y += types.h
+ mandatory-y += unistd.h
+ EOF
+
+This script removes a UAPI header file from the install list. Let's run
+the script::
+
+ % ./scripts/check-uapi.sh
+ Installing user-facing UAPI headers from dirty tree... OK
+ Installing user-facing UAPI headers from HEAD... OK
+ Checking changes to UAPI headers between HEAD and dirty tree...
+ ==== UAPI header include/asm/termios.h was removed between HEAD and dirty tree ====
+
+ error - 1/912 UAPI headers compatible with x86 appear _not_ to be backwards compatible
+
+Removing a UAPI header is considered a breaking change, and the script
+will flag it as such.
+
+Checking Historic UAPI Compatibility
+------------------------------------
+
+You can use the ``-b`` and ``-p`` options to examine different chunks of your
+git tree. For example, to check all changed UAPI header files between tags
+v6.0 and v6.1, you'd run::
+
+ % ./scripts/check-uapi.sh -b v6.1 -p v6.0
+ Installing user-facing UAPI headers from v6.1... OK
+ Installing user-facing UAPI headers from v6.0... OK
+ Checking changes to UAPI headers between v6.0 and v6.1...
+
+ --- snip ---
+ error - 37/907 UAPI headers compatible with x86 appear _not_ to be backwards compatible
+
+Note: Before v5.3, a header file needed by the script is not present,
+so the script is unable to check changes before then.
+
+You'll notice that the script detected many UAPI changes that are not
+backwards compatible. Knowing that kernel UAPIs are supposed to be stable
+forever, this is an alarming result. This brings us to the next section:
+caveats.
+
+Caveats
+=======
+
+The UAPI checker makes no assumptions about the author's intention, so some
+types of changes may be flagged even though they intentionally break UAPI.
+
+Removals For Refactoring or Deprecation
+---------------------------------------
+
+Sometimes drivers for very old hardware are removed, such as in this example::
+
+ % ./scripts/check-uapi.sh -b ba47652ba655
+ Installing user-facing UAPI headers from ba47652ba655... OK
+ Installing user-facing UAPI headers from ba47652ba655^1... OK
+ Checking changes to UAPI headers between ba47652ba655^1 and ba47652ba655...
+ ==== UAPI header include/linux/meye.h was removed between ba47652ba655^1 and ba47652ba655 ====
+
+ error - 1/910 UAPI headers compatible with x86 appear _not_ to be backwards compatible
+
+The script will always flag removals (even if they're intentional).
+
+Struct Expansions
+-----------------
+
+Depending on how a structure is handled in kernelspace, a change which
+expands a struct could be non-breaking.
+
+If a struct is used as the argument to an ioctl, then the kernel driver
+must be able to handle ioctl commands of any size. Beyond that, you need
+to be careful when copying data from the user. Say, for example, that
+``struct foo`` is changed like this::
+
+ struct foo {
+ __u64 a; /* added in version 1 */
+ + __u32 b; /* added in version 2 */
+ + __u32 c; /* added in version 2 */
+ }
+
+By default, the script will flag this kind of change for further review::
+
+ [C] 'struct foo' changed:
+ type size changed from 64 to 128 (in bits)
+ 2 data member insertions:
+ '__u32 b', at offset 64 (in bits)
+ '__u32 c', at offset 96 (in bits)
+
+However, it is possible that this change was made safely.
+
+If a userspace program was built with version 1, it will think
+``sizeof(struct foo)`` is 8. That size will be encoded in the
+ioctl value that gets sent to the kernel. If the kernel is built
+with version 2, it will think the ``sizeof(struct foo)`` is 16.
+
+The kernel can use the ``_IOC_SIZE`` macro to get the size encoded
+in the ioctl code that the user passed in and then use
+``copy_struct_from_user()`` to safely copy the value::
+
+ int handle_ioctl(unsigned long cmd, unsigned long arg)
+ {
+ switch _IOC_NR(cmd) {
+ 0x01: {
+ struct foo my_cmd; /* size 16 in the kernel */
+
+ ret = copy_struct_from_user(&my_cmd, arg, sizeof(struct foo), _IOC_SIZE(cmd));
+ ...
+
+``copy_struct_from_user`` will zero the struct in the kernel and then copy
+only the bytes passed in from the user (leaving new members zeroized).
+If the user passed in a larger struct, the extra members are ignored.
+
+If you know this situation is accounted for in the kernel code, you can
+pass ``-i`` to the script, and struct expansions like this will be ignored.
+
+Flex Array Migration
+--------------------
+
+While the script handles expansion into an existing flex array, it does
+still flag initial migration to flex arrays from 1-element fake flex
+arrays. For example::
+
+ struct foo {
+ __u32 x;
+ - __u32 flex[1]; /* fake flex */
+ + __u32 flex[]; /* real flex */
+ };
+
+This change would be flagged by the script::
+
+ [C] 'struct foo' changed:
+ type size changed from 64 to 32 (in bits)
+ 1 data member change:
+ type of '__u32 flex[1]' changed:
+ type name changed from '__u32[1]' to '__u32[]'
+ array type size changed from 32 to 'unknown'
+ array type subrange 1 changed length from 1 to 'unknown'
+
+At this time, there's no way to filter these types of changes, so be
+aware of this possible false positive.
+
+Summary
+-------
+
+While many types of false positives are filtered out by the script,
+it's possible there are some cases where the script flags a change
+which does not break UAPI. It's also possible a change which *does*
+break userspace would not be flagged by this script. While the script
+has been run on much of the kernel history, there could still be corner
+cases that are not accounted for.
+
+The intention is for this script to be used as a quick check for
+maintainers or automated tooling, not as the end-all authority on
+patch compatibility. It's best to remember: use your best judgment
+(and ideally a unit test in userspace) to make sure your UAPI changes
+are backwards-compatible!
diff --git a/Documentation/process/clang-format.rst b/Documentation/dev-tools/clang-format.rst
index 1d089a847c1b..1d089a847c1b 100644
--- a/Documentation/process/clang-format.rst
+++ b/Documentation/dev-tools/clang-format.rst
diff --git a/Documentation/dev-tools/coccinelle.rst b/Documentation/dev-tools/coccinelle.rst
index 535ce126fb4f..6e70a1e9a3c0 100644
--- a/Documentation/dev-tools/coccinelle.rst
+++ b/Documentation/dev-tools/coccinelle.rst
@@ -250,25 +250,17 @@ variables for .cocciconfig is as follows:
- Your directory from which spatch is called is processed next
- The directory provided with the ``--dir`` option is processed last, if used
-Since coccicheck runs through make, it naturally runs from the kernel
-proper dir; as such the second rule above would be implied for picking up a
-.cocciconfig when using ``make coccicheck``.
-
``make coccicheck`` also supports using M= targets. If you do not supply
any M= target, it is assumed you want to target the entire kernel.
The kernel coccicheck script has::
- if [ "$KBUILD_EXTMOD" = "" ] ; then
- OPTIONS="--dir $srctree $COCCIINCLUDE"
- else
- OPTIONS="--dir $KBUILD_EXTMOD $COCCIINCLUDE"
- fi
-
-KBUILD_EXTMOD is set when an explicit target with M= is used. For both cases
-the spatch ``--dir`` argument is used, as such third rule applies when whether
-M= is used or not, and when M= is used the target directory can have its own
-.cocciconfig file. When M= is not passed as an argument to coccicheck the
-target directory is the same as the directory from where spatch was called.
+ OPTIONS="--dir $srcroot $COCCIINCLUDE"
+
+Here, $srcroot refers to the source directory of the target: it points to the
+external module's source directory when M= used, and otherwise, to the kernel
+source directory. The third rule ensures the spatch reads the .cocciconfig from
+the target directory, allowing external modules to have their own .cocciconfig
+file.
If not using the kernel's coccicheck target, keep the above precedence
order logic of .cocciconfig reading. If using the kernel's coccicheck target,
diff --git a/Documentation/dev-tools/gcov.rst b/Documentation/dev-tools/gcov.rst
index 5fce2b06f229..075df6a4598d 100644
--- a/Documentation/dev-tools/gcov.rst
+++ b/Documentation/dev-tools/gcov.rst
@@ -23,7 +23,7 @@ Possible uses:
associated code is never run?)
.. _gcov: https://gcc.gnu.org/onlinedocs/gcc/Gcov.html
-.. _lcov: http://ltp.sourceforge.net/coverage/lcov.php
+.. _lcov: https://github.com/linux-test-project/lcov
Preparation
@@ -75,6 +75,17 @@ Only files which are linked to the main kernel image or are compiled as
kernel modules are supported by this mechanism.
+Module specific configs
+-----------------------
+
+Gcov kernel configs for specific modules are described below:
+
+CONFIG_GCOV_PROFILE_RDS:
+ Enables GCOV profiling on RDS for checking which functions or
+ lines are executed. This config is used by the rds selftest to
+ generate coverage reports. If left unset the report is omitted.
+
+
Files
-----
diff --git a/Documentation/dev-tools/gdb-kernel-debugging.rst b/Documentation/dev-tools/gdb-kernel-debugging.rst
deleted file mode 100644
index 895285c037c7..000000000000
--- a/Documentation/dev-tools/gdb-kernel-debugging.rst
+++ /dev/null
@@ -1,179 +0,0 @@
-.. highlight:: none
-
-Debugging kernel and modules via gdb
-====================================
-
-The kernel debugger kgdb, hypervisors like QEMU or JTAG-based hardware
-interfaces allow to debug the Linux kernel and its modules during runtime
-using gdb. Gdb comes with a powerful scripting interface for python. The
-kernel provides a collection of helper scripts that can simplify typical
-kernel debugging steps. This is a short tutorial about how to enable and use
-them. It focuses on QEMU/KVM virtual machines as target, but the examples can
-be transferred to the other gdb stubs as well.
-
-
-Requirements
-------------
-
-- gdb 7.2+ (recommended: 7.4+) with python support enabled (typically true
- for distributions)
-
-
-Setup
------
-
-- Create a virtual Linux machine for QEMU/KVM (see www.linux-kvm.org and
- www.qemu.org for more details). For cross-development,
- https://landley.net/aboriginal/bin keeps a pool of machine images and
- toolchains that can be helpful to start from.
-
-- Build the kernel with CONFIG_GDB_SCRIPTS enabled, but leave
- CONFIG_DEBUG_INFO_REDUCED off. If your architecture supports
- CONFIG_FRAME_POINTER, keep it enabled.
-
-- Install that kernel on the guest, turn off KASLR if necessary by adding
- "nokaslr" to the kernel command line.
- Alternatively, QEMU allows to boot the kernel directly using -kernel,
- -append, -initrd command line switches. This is generally only useful if
- you do not depend on modules. See QEMU documentation for more details on
- this mode. In this case, you should build the kernel with
- CONFIG_RANDOMIZE_BASE disabled if the architecture supports KASLR.
-
-- Build the gdb scripts (required on kernels v5.1 and above)::
-
- make scripts_gdb
-
-- Enable the gdb stub of QEMU/KVM, either
-
- - at VM startup time by appending "-s" to the QEMU command line
-
- or
-
- - during runtime by issuing "gdbserver" from the QEMU monitor
- console
-
-- cd /path/to/linux-build
-
-- Start gdb: gdb vmlinux
-
- Note: Some distros may restrict auto-loading of gdb scripts to known safe
- directories. In case gdb reports to refuse loading vmlinux-gdb.py, add::
-
- add-auto-load-safe-path /path/to/linux-build
-
- to ~/.gdbinit. See gdb help for more details.
-
-- Attach to the booted guest::
-
- (gdb) target remote :1234
-
-
-Examples of using the Linux-provided gdb helpers
-------------------------------------------------
-
-- Load module (and main kernel) symbols::
-
- (gdb) lx-symbols
- loading vmlinux
- scanning for modules in /home/user/linux/build
- loading @0xffffffffa0020000: /home/user/linux/build/net/netfilter/xt_tcpudp.ko
- loading @0xffffffffa0016000: /home/user/linux/build/net/netfilter/xt_pkttype.ko
- loading @0xffffffffa0002000: /home/user/linux/build/net/netfilter/xt_limit.ko
- loading @0xffffffffa00ca000: /home/user/linux/build/net/packet/af_packet.ko
- loading @0xffffffffa003c000: /home/user/linux/build/fs/fuse/fuse.ko
- ...
- loading @0xffffffffa0000000: /home/user/linux/build/drivers/ata/ata_generic.ko
-
-- Set a breakpoint on some not yet loaded module function, e.g.::
-
- (gdb) b btrfs_init_sysfs
- Function "btrfs_init_sysfs" not defined.
- Make breakpoint pending on future shared library load? (y or [n]) y
- Breakpoint 1 (btrfs_init_sysfs) pending.
-
-- Continue the target::
-
- (gdb) c
-
-- Load the module on the target and watch the symbols being loaded as well as
- the breakpoint hit::
-
- loading @0xffffffffa0034000: /home/user/linux/build/lib/libcrc32c.ko
- loading @0xffffffffa0050000: /home/user/linux/build/lib/lzo/lzo_compress.ko
- loading @0xffffffffa006e000: /home/user/linux/build/lib/zlib_deflate/zlib_deflate.ko
- loading @0xffffffffa01b1000: /home/user/linux/build/fs/btrfs/btrfs.ko
-
- Breakpoint 1, btrfs_init_sysfs () at /home/user/linux/fs/btrfs/sysfs.c:36
- 36 btrfs_kset = kset_create_and_add("btrfs", NULL, fs_kobj);
-
-- Dump the log buffer of the target kernel::
-
- (gdb) lx-dmesg
- [ 0.000000] Initializing cgroup subsys cpuset
- [ 0.000000] Initializing cgroup subsys cpu
- [ 0.000000] Linux version 3.8.0-rc4-dbg+ (...
- [ 0.000000] Command line: root=/dev/sda2 resume=/dev/sda1 vga=0x314
- [ 0.000000] e820: BIOS-provided physical RAM map:
- [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable
- [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved
- ....
-
-- Examine fields of the current task struct(supported by x86 and arm64 only)::
-
- (gdb) p $lx_current().pid
- $1 = 4998
- (gdb) p $lx_current().comm
- $2 = "modprobe\000\000\000\000\000\000\000"
-
-- Make use of the per-cpu function for the current or a specified CPU::
-
- (gdb) p $lx_per_cpu("runqueues").nr_running
- $3 = 1
- (gdb) p $lx_per_cpu("runqueues", 2).nr_running
- $4 = 0
-
-- Dig into hrtimers using the container_of helper::
-
- (gdb) set $next = $lx_per_cpu("hrtimer_bases").clock_base[0].active.next
- (gdb) p *$container_of($next, "struct hrtimer", "node")
- $5 = {
- node = {
- node = {
- __rb_parent_color = 18446612133355256072,
- rb_right = 0x0 <irq_stack_union>,
- rb_left = 0x0 <irq_stack_union>
- },
- expires = {
- tv64 = 1835268000000
- }
- },
- _softexpires = {
- tv64 = 1835268000000
- },
- function = 0xffffffff81078232 <tick_sched_timer>,
- base = 0xffff88003fd0d6f0,
- state = 1,
- start_pid = 0,
- start_site = 0xffffffff81055c1f <hrtimer_start_range_ns+20>,
- start_comm = "swapper/2\000\000\000\000\000\000"
- }
-
-
-List of commands and functions
-------------------------------
-
-The number of commands and convenience functions may evolve over the time,
-this is just a snapshot of the initial version::
-
- (gdb) apropos lx
- function lx_current -- Return current task
- function lx_module -- Find module by name and return the module variable
- function lx_per_cpu -- Return per-cpu variable
- function lx_task_by_pid -- Find Linux task by PID and return the task_struct variable
- function lx_thread_info -- Calculate Linux thread_info from task variable
- lx-dmesg -- Print Linux kernel log buffer
- lx-lsmod -- List currently loaded modules
- lx-symbols -- (Re-)load symbols of Linux kernel and currently loaded modules
-
-Detailed help can be obtained via "help <command-name>" for commands and "help
-function <function-name>" for convenience functions.
diff --git a/Documentation/dev-tools/gpio-sloppy-logic-analyzer.rst b/Documentation/dev-tools/gpio-sloppy-logic-analyzer.rst
new file mode 100644
index 000000000000..d69f24c0d9e1
--- /dev/null
+++ b/Documentation/dev-tools/gpio-sloppy-logic-analyzer.rst
@@ -0,0 +1,93 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=============================================
+Linux Kernel GPIO based sloppy logic analyzer
+=============================================
+
+:Author: Wolfram Sang
+
+Introduction
+============
+
+This document briefly describes how to run the GPIO based in-kernel sloppy
+logic analyzer running on an isolated CPU.
+
+The sloppy logic analyzer will utilize a few GPIO lines in input mode on a
+system to rapidly sample these digital lines, which will, if the Nyquist
+criteria is met, result in a time series log with approximate waveforms as they
+appeared on these lines. One way to use it is to analyze external traffic
+connected to these GPIO lines with wires (i.e. digital probes), acting as a
+common logic analyzer.
+
+Another feature is to snoop on on-chip peripherals if the I/O cells of these
+peripherals can be used in GPIO input mode at the same time as they are being
+used as inputs or outputs for the peripheral. That means you could e.g. snoop
+I2C traffic without any wiring (if your hardware supports it). In the pin
+control subsystem such pin controllers are called "non-strict": a certain pin
+can be used with a certain peripheral and as a GPIO input line at the same
+time.
+
+Note that this is a last resort analyzer which can be affected by latencies,
+non-deterministic code paths and non-maskable interrupts. It is called 'sloppy'
+for a reason. However, for e.g. remote development, it may be useful to get a
+first view and aid further debugging.
+
+Setup
+=====
+
+Your kernel must have CONFIG_DEBUG_FS and CONFIG_CPUSETS enabled. Ideally, your
+runtime environment does not utilize cpusets otherwise, then isolation of a CPU
+core is easiest. If you do need cpusets, check that helper script for the
+sloppy logic analyzer does not interfere with your other settings.
+
+Tell the kernel which GPIOs are used as probes. For a Device Tree based system,
+you need to use the following bindings. Because these bindings are only for
+debugging, there is no official schema::
+
+ i2c-analyzer {
+ compatible = "gpio-sloppy-logic-analyzer";
+ probe-gpios = <&gpio6 21 GPIO_OPEN_DRAIN>, <&gpio6 4 GPIO_OPEN_DRAIN>;
+ probe-names = "SCL", "SDA";
+ };
+
+Note that you must provide a name for every GPIO specified. Currently a
+maximum of 8 probes are supported. 32 are likely possible but are not
+implemented yet.
+
+Usage
+=====
+
+The logic analyzer is configurable via files in debugfs. However, it is
+strongly recommended to not use them directly, but to use the script
+``tools/gpio/gpio-sloppy-logic-analyzer``. Besides checking parameters more
+extensively, it will isolate the CPU core so you will have the least
+disturbance while measuring.
+
+The script has a help option explaining the parameters. For the above DT
+snippet which analyzes an I2C bus at 400kHz on a Renesas Salvator-XS board, the
+following settings are used: The isolated CPU shall be CPU1 because it is a big
+core in a big.LITTLE setup. Because CPU1 is the default, we don't need a
+parameter. The bus speed is 400kHz. So, the sampling theorem says we need to
+sample at least at 800kHz. However, falling edges of both signals in an I2C
+start condition happen faster, so we need a higher sampling frequency, e.g.
+``-s 1500000`` for 1.5MHz. Also, we don't want to sample right away but wait
+for a start condition on an idle bus. So, we need to set a trigger to a falling
+edge on SDA while SCL stays high, i.e. ``-t 1H+2F``. Last is the duration, let
+us assume 15ms here which results in the parameter ``-d 15000``. So,
+altogether::
+
+ gpio-sloppy-logic-analyzer -s 1500000 -t 1H+2F -d 15000
+
+Note that the process will return you back to the prompt but a sub-process is
+still sampling in the background. Unless this has finished, you will not find a
+result file in the current or specified directory. For the above example, we
+will then need to trigger I2C communication::
+
+ i2cdetect -y -r <your bus number>
+
+Result is a .sr file to be consumed with PulseView or sigrok-cli from the free
+`sigrok`_ project. It is a zip file which also contains the binary sample data
+which may be consumed by other software. The filename is the logic analyzer
+instance name plus a since-epoch timestamp.
+
+.. _sigrok: https://sigrok.org/
diff --git a/Documentation/dev-tools/index.rst b/Documentation/dev-tools/index.rst
index 6b0663075dc0..4b8425e348ab 100644
--- a/Documentation/dev-tools/index.rst
+++ b/Documentation/dev-tools/index.rst
@@ -10,15 +10,16 @@ whole; patches welcome!
A brief overview of testing-specific tools can be found in
Documentation/dev-tools/testing-overview.rst
-.. class:: toc-title
-
- Table of contents
+Tools that are specific to debugging can be found in
+Documentation/process/debugging/index.rst
.. toctree::
+ :caption: Table of contents
:maxdepth: 2
testing-overview
checkpatch
+ clang-format
coccinelle
sparse
kcov
@@ -28,12 +29,15 @@ Documentation/dev-tools/testing-overview.rst
ubsan
kmemleak
kcsan
+ lkmm/index
kfence
- gdb-kernel-debugging
- kgdb
kselftest
kunit/index
ktap
+ checkuapi
+ gpio-sloppy-logic-analyzer
+ autofdo
+ propeller
.. only:: subproject and html
diff --git a/Documentation/dev-tools/kasan.rst b/Documentation/dev-tools/kasan.rst
index e66916a483cd..a034700da7c4 100644
--- a/Documentation/dev-tools/kasan.rst
+++ b/Documentation/dev-tools/kasan.rst
@@ -1,5 +1,8 @@
-The Kernel Address Sanitizer (KASAN)
-====================================
+.. SPDX-License-Identifier: GPL-2.0
+.. Copyright (C) 2023, Google LLC.
+
+Kernel Address Sanitizer (KASAN)
+================================
Overview
--------
@@ -41,8 +44,8 @@ Support
Architectures
~~~~~~~~~~~~~
-Generic KASAN is supported on x86_64, arm, arm64, powerpc, riscv, s390, and
-xtensa, and the tag-based KASAN modes are supported only on arm64.
+Generic KASAN is supported on x86_64, arm, arm64, powerpc, riscv, s390, xtensa,
+and loongarch, and the tag-based KASAN modes are supported only on arm64.
Compilers
~~~~~~~~~
@@ -107,9 +110,12 @@ effectively disables ``panic_on_warn`` for KASAN reports.
Alternatively, independent of ``panic_on_warn``, the ``kasan.fault=`` boot
parameter can be used to control panic and reporting behaviour:
-- ``kasan.fault=report`` or ``=panic`` controls whether to only print a KASAN
- report or also panic the kernel (default: ``report``). The panic happens even
- if ``kasan_multi_shot`` is enabled.
+- ``kasan.fault=report``, ``=panic``, or ``=panic_on_write`` controls whether
+ to only print a KASAN report, panic the kernel, or panic the kernel on
+ invalid writes only (default: ``report``). The panic happens even if
+ ``kasan_multi_shot`` is enabled. Note that when using asynchronous mode of
+ Hardware Tag-Based KASAN, ``kasan.fault=panic_on_write`` always panics on
+ asynchronously checked accesses (including reads).
Software and Hardware Tag-Based KASAN modes (see the section about various
modes below) support altering stack trace collection behavior:
@@ -137,6 +143,9 @@ disabling KASAN altogether or controlling its features:
Asymmetric mode: a bad access is detected synchronously on reads and
asynchronously on writes.
+- ``kasan.write_only=off`` or ``kasan.write_only=on`` controls whether KASAN
+ checks the write (store) accesses only or all accesses (default: ``off``).
+
- ``kasan.vmalloc=off`` or ``=on`` disables or enables tagging of vmalloc
allocations (default: ``on``).
@@ -163,7 +172,7 @@ Error reports
A typical KASAN report looks like this::
==================================================================
- BUG: KASAN: slab-out-of-bounds in kmalloc_oob_right+0xa8/0xbc [test_kasan]
+ BUG: KASAN: slab-out-of-bounds in kmalloc_oob_right+0xa8/0xbc [kasan_test]
Write of size 1 at addr ffff8801f44ec37b by task insmod/2760
CPU: 1 PID: 2760 Comm: insmod Not tainted 4.19.0-rc3+ #698
@@ -173,8 +182,8 @@ A typical KASAN report looks like this::
print_address_description+0x73/0x280
kasan_report+0x144/0x187
__asan_report_store1_noabort+0x17/0x20
- kmalloc_oob_right+0xa8/0xbc [test_kasan]
- kmalloc_tests_init+0x16/0x700 [test_kasan]
+ kmalloc_oob_right+0xa8/0xbc [kasan_test]
+ kmalloc_tests_init+0x16/0x700 [kasan_test]
do_one_initcall+0xa5/0x3ae
do_init_module+0x1b6/0x547
load_module+0x75df/0x8070
@@ -194,8 +203,8 @@ A typical KASAN report looks like this::
save_stack+0x43/0xd0
kasan_kmalloc+0xa7/0xd0
kmem_cache_alloc_trace+0xe1/0x1b0
- kmalloc_oob_right+0x56/0xbc [test_kasan]
- kmalloc_tests_init+0x16/0x700 [test_kasan]
+ kmalloc_oob_right+0x56/0xbc [kasan_test]
+ kmalloc_tests_init+0x16/0x700 [kasan_test]
do_one_initcall+0xa5/0x3ae
do_init_module+0x1b6/0x547
load_module+0x75df/0x8070
@@ -271,6 +280,27 @@ traces point to places in code that interacted with the object but that are not
directly present in the bad access stack trace. Currently, this includes
call_rcu() and workqueue queuing.
+CONFIG_KASAN_EXTRA_INFO
+~~~~~~~~~~~~~~~~~~~~~~~
+
+Enabling CONFIG_KASAN_EXTRA_INFO allows KASAN to record and report more
+information. The extra information currently supported is the CPU number and
+timestamp at allocation and free. More information can help find the cause of
+the bug and correlate the error with other system events, at the cost of using
+extra memory to record more information (more cost details in the help text of
+CONFIG_KASAN_EXTRA_INFO).
+
+Here is the report with CONFIG_KASAN_EXTRA_INFO enabled (only the
+different parts are shown)::
+
+ ==================================================================
+ ...
+ Allocated by task 134 on cpu 5 at 229.133855s:
+ ...
+ Freed by task 136 on cpu 3 at 230.199335s:
+ ...
+ ==================================================================
+
Implementation details
----------------------
@@ -484,19 +514,14 @@ Tests
~~~~~
There are KASAN tests that allow verifying that KASAN works and can detect
-certain types of memory corruptions. The tests consist of two parts:
+certain types of memory corruptions.
-1. Tests that are integrated with the KUnit Test Framework. Enabled with
-``CONFIG_KASAN_KUNIT_TEST``. These tests can be run and partially verified
+All KASAN tests are integrated with the KUnit Test Framework and can be enabled
+via ``CONFIG_KASAN_KUNIT_TEST``. The tests can be run and partially verified
automatically in a few different ways; see the instructions below.
-2. Tests that are currently incompatible with KUnit. Enabled with
-``CONFIG_KASAN_MODULE_TEST`` and can only be run as a module. These tests can
-only be verified manually by loading the kernel module and inspecting the
-kernel log for KASAN reports.
-
-Each KUnit-compatible KASAN test prints one of multiple KASAN reports if an
-error is detected. Then the test prints its number and status.
+Each KASAN test prints one of multiple KASAN reports if an error is detected.
+Then the test prints its number and status.
When a test passes::
@@ -504,15 +529,15 @@ When a test passes::
When a test fails due to a failed ``kmalloc``::
- # kmalloc_large_oob_right: ASSERTION FAILED at lib/test_kasan.c:163
+ # kmalloc_large_oob_right: ASSERTION FAILED at mm/kasan/kasan_test.c:245
Expected ptr is not null, but is
- not ok 4 - kmalloc_large_oob_right
+ not ok 5 - kmalloc_large_oob_right
When a test fails due to a missing KASAN report::
- # kmalloc_double_kzfree: EXPECTATION FAILED at lib/test_kasan.c:974
+ # kmalloc_double_kzfree: EXPECTATION FAILED at mm/kasan/kasan_test.c:709
KASAN failure expected in "kfree_sensitive(ptr)", but none occurred
- not ok 44 - kmalloc_double_kzfree
+ not ok 28 - kmalloc_double_kzfree
At the end the cumulative status of all KASAN tests is printed. On success::
@@ -523,16 +548,16 @@ Or, if one of the tests failed::
not ok 1 - kasan
-There are a few ways to run KUnit-compatible KASAN tests.
+There are a few ways to run the KASAN tests.
1. Loadable module
- With ``CONFIG_KUNIT`` enabled, KASAN-KUnit tests can be built as a loadable
- module and run by loading ``test_kasan.ko`` with ``insmod`` or ``modprobe``.
+ With ``CONFIG_KUNIT`` enabled, the tests can be built as a loadable module
+ and run by loading ``kasan_test.ko`` with ``insmod`` or ``modprobe``.
2. Built-In
- With ``CONFIG_KUNIT`` built-in, KASAN-KUnit tests can be built-in as well.
+ With ``CONFIG_KUNIT`` built-in, the tests can be built-in as well.
In this case, the tests will run at boot as a late-init call.
3. Using kunit_tool
diff --git a/Documentation/dev-tools/kcov.rst b/Documentation/dev-tools/kcov.rst
index 6611434e2dd2..8127849d40f5 100644
--- a/Documentation/dev-tools/kcov.rst
+++ b/Documentation/dev-tools/kcov.rst
@@ -361,7 +361,12 @@ local tasks spawned by the process and the global task that handles USB bus #1:
*/
sleep(2);
- n = __atomic_load_n(&cover[0], __ATOMIC_RELAXED);
+ /*
+ * The load to the coverage count should be an acquire to pair with
+ * pair with the corresponding write memory barrier (smp_wmb()) on
+ * the kernel-side in kcov_move_area().
+ */
+ n = __atomic_load_n(&cover[0], __ATOMIC_ACQUIRE);
for (i = 0; i < n; i++)
printf("0x%lx\n", cover[i + 1]);
if (ioctl(fd, KCOV_DISABLE, 0))
diff --git a/Documentation/dev-tools/kcsan.rst b/Documentation/dev-tools/kcsan.rst
index 3ae866dcc924..8575178aa87f 100644
--- a/Documentation/dev-tools/kcsan.rst
+++ b/Documentation/dev-tools/kcsan.rst
@@ -1,8 +1,8 @@
.. SPDX-License-Identifier: GPL-2.0
.. Copyright (C) 2019, Google LLC.
-The Kernel Concurrency Sanitizer (KCSAN)
-========================================
+Kernel Concurrency Sanitizer (KCSAN)
+====================================
The Kernel Concurrency Sanitizer (KCSAN) is a dynamic race detector, which
relies on compile-time instrumentation, and uses a watchpoint-based sampling
@@ -91,6 +91,16 @@ the below options are available:
behaviour when encountering a data race is deemed safe. Please see
`"Marking Shared-Memory Accesses" in the LKMM`_ for more information.
+* Similar to ``data_race(...)``, the type qualifier ``__data_racy`` can be used
+ to document that all data races due to accesses to a variable are intended
+ and should be ignored by KCSAN::
+
+ struct foo {
+ ...
+ int __data_racy stats_counter;
+ ...
+ };
+
* Disabling data race detection for entire functions can be accomplished by
using the function attribute ``__no_kcsan``::
@@ -193,7 +203,7 @@ they happen concurrently in different threads, and at least one of them is a
least one is a write. For a more thorough discussion and definition, see `"Plain
Accesses and Data Races" in the LKMM`_.
-.. _"Plain Accesses and Data Races" in the LKMM: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/tools/memory-model/Documentation/explanation.txt#n1922
+.. _"Plain Accesses and Data Races" in the LKMM: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/tools/memory-model/Documentation/explanation.txt?id=8f6629c004b193d23612641c3607e785819e97ab#n2164
Relationship with the Linux-Kernel Memory Consistency Model (LKMM)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -351,7 +361,8 @@ Alternatives Considered
-----------------------
An alternative data race detection approach for the kernel can be found in the
-`Kernel Thread Sanitizer (KTSAN) <https://github.com/google/ktsan/wiki>`_.
+`Kernel Thread Sanitizer (KTSAN)
+<https://github.com/google/kernel-sanitizers/blob/master/KTSAN.md>`_.
KTSAN is a happens-before data race detector, which explicitly establishes the
happens-before order between memory operations, which can then be used to
determine data races as defined in `Data Races`_.
diff --git a/Documentation/dev-tools/kfence.rst b/Documentation/dev-tools/kfence.rst
index 936f6aaa75c8..541899353865 100644
--- a/Documentation/dev-tools/kfence.rst
+++ b/Documentation/dev-tools/kfence.rst
@@ -53,6 +53,13 @@ configurable via the Kconfig option ``CONFIG_KFENCE_DEFERRABLE``.
The KUnit test suite is very likely to fail when using a deferrable timer
since it currently causes very unpredictable sample intervals.
+By default KFENCE will only sample 1 heap allocation within each sample
+interval. *Burst mode* allows to sample successive heap allocations, where the
+kernel boot parameter ``kfence.burst`` can be set to a non-zero value which
+denotes the *additional* successive allocations within a sample interval;
+setting ``kfence.burst=N`` means that ``1 + N`` successive allocations are
+attempted through KFENCE for each sample interval.
+
The KFENCE memory pool is of fixed size, and if the pool is exhausted, no
further KFENCE allocations occur. With ``CONFIG_KFENCE_NUM_OBJECTS`` (default
255), the number of available guarded objects can be controlled. Each object
diff --git a/Documentation/dev-tools/kmemleak.rst b/Documentation/dev-tools/kmemleak.rst
index 2cb00b53339f..7d784e03f3f9 100644
--- a/Documentation/dev-tools/kmemleak.rst
+++ b/Documentation/dev-tools/kmemleak.rst
@@ -161,6 +161,7 @@ See the include/linux/kmemleak.h header for the functions prototype.
- ``kmemleak_free_percpu`` - notify of a percpu memory block freeing
- ``kmemleak_update_trace`` - update object allocation stack trace
- ``kmemleak_not_leak`` - mark an object as not a leak
+- ``kmemleak_transient_leak`` - mark an object as a transient leak
- ``kmemleak_ignore`` - do not scan or report an object as leak
- ``kmemleak_scan_area`` - add scan areas inside a memory block
- ``kmemleak_no_scan`` - do not scan a memory block
diff --git a/Documentation/dev-tools/kmsan.rst b/Documentation/dev-tools/kmsan.rst
index 55fa82212eb2..0dc668b183f6 100644
--- a/Documentation/dev-tools/kmsan.rst
+++ b/Documentation/dev-tools/kmsan.rst
@@ -1,9 +1,9 @@
.. SPDX-License-Identifier: GPL-2.0
.. Copyright (C) 2022, Google LLC.
-===================================
-The Kernel Memory Sanitizer (KMSAN)
-===================================
+===============================
+Kernel Memory Sanitizer (KMSAN)
+===============================
KMSAN is a dynamic error detector aimed at finding uses of uninitialized
values. It is based on compiler instrumentation, and is quite similar to the
@@ -110,6 +110,13 @@ in the Makefile. Think of this as applying ``__no_sanitize_memory`` to every
function in the file or directory. Most users won't need KMSAN_SANITIZE, unless
their code gets broken by KMSAN (e.g. runs at early boot time).
+KMSAN checks can also be temporarily disabled for the current task using
+``kmsan_disable_current()`` and ``kmsan_enable_current()`` calls. Each
+``kmsan_enable_current()`` call must be preceded by a
+``kmsan_disable_current()`` call; these call pairs may be nested. One needs to
+be careful with these calls, keeping the regions short and preferring other
+ways to disable instrumentation, where possible.
+
Support
=======
@@ -126,7 +133,7 @@ KMSAN shadow memory
-------------------
KMSAN associates a metadata byte (also called shadow byte) with every byte of
-kernel memory. A bit in the shadow byte is set iff the corresponding bit of the
+kernel memory. A bit in the shadow byte is set if the corresponding bit of the
kernel memory byte is uninitialized. Marking the memory uninitialized (i.e.
setting its shadow bytes to ``0xff``) is called poisoning, marking it
initialized (setting the shadow bytes to ``0x00``) is called unpoisoning.
@@ -338,11 +345,11 @@ Per-task KMSAN state
~~~~~~~~~~~~~~~~~~~~
Every task_struct has an associated KMSAN task state that holds the KMSAN
-context (see above) and a per-task flag disallowing KMSAN reports::
+context (see above) and a per-task counter disallowing KMSAN reports::
struct kmsan_context {
...
- bool allow_reporting;
+ unsigned int depth;
struct kmsan_context_state cstate;
...
}
diff --git a/Documentation/dev-tools/kselftest.rst b/Documentation/dev-tools/kselftest.rst
index 12b575b76b20..18c2da67fae4 100644
--- a/Documentation/dev-tools/kselftest.rst
+++ b/Documentation/dev-tools/kselftest.rst
@@ -31,11 +31,21 @@ kselftest runs as a userspace process. Tests that can be written/run in
userspace may wish to use the `Test Harness`_. Tests that need to be
run in kernel space may wish to use a `Test Module`_.
+Documentation on the tests
+==========================
+
+For documentation on the kselftests themselves, see:
+
+.. toctree::
+
+ testing-devices
+
Running the selftests (hotplug tests are run in limited mode)
=============================================================
To build the tests::
+ $ make headers
$ make -C tools/testing/selftests
To run the tests::
@@ -111,7 +121,7 @@ You can specify multiple tests to skip::
You can also specify a restricted list of tests to run together with a
dedicated skiplist::
- $ make TARGETS="bpf breakpoints size timers" SKIP_TARGETS=bpf kselftest
+ $ make TARGETS="breakpoints size timers" SKIP_TARGETS=size kselftest
See the top-level tools/testing/selftests/Makefile for the list of all
possible targets.
@@ -164,10 +174,32 @@ To see the list of available tests, the `-l` option can be used::
The `-c` option can be used to run all the tests from a test collection, or
the `-t` option for specific single tests. Either can be used multiple times::
- $ ./run_kselftest.sh -c bpf -c seccomp -t timers:posix_timers -t timer:nanosleep
+ $ ./run_kselftest.sh -c size -c seccomp -t timers:posix_timers -t timer:nanosleep
For other features see the script usage output, seen with the `-h` option.
+Timeout for selftests
+=====================
+
+Selftests are designed to be quick and so a default timeout is used of 45
+seconds for each test. Tests can override the default timeout by adding
+a settings file in their directory and set a timeout variable there to the
+configured a desired upper timeout for the test. Only a few tests override
+the timeout with a value higher than 45 seconds, selftests strives to keep
+it that way. Timeouts in selftests are not considered fatal because the
+system under which a test runs may change and this can also modify the
+expected time it takes to run a test. If you have control over the systems
+which will run the tests you can configure a test runner on those systems to
+use a greater or lower timeout on the command line as with the `-o` or
+the `--override-timeout` argument. For example to use 165 seconds instead
+one would use::
+
+ $ ./run_kselftest.sh --override-timeout 165
+
+You can look at the TAP output to see if you ran into the timeout. Test
+runners which know a test must run under a specific time can then optionally
+treat these timeouts then as fatal.
+
Packaging selftests
===================
@@ -187,7 +219,7 @@ option is supported, such as::
tests by using variables specified in `Running a subset of selftests`_
section::
- $ make -C tools/testing/selftests gen_tar TARGETS="bpf" FORMAT=.xz
+ $ make -C tools/testing/selftests gen_tar TARGETS="size" FORMAT=.xz
.. _tar's auto-compress: https://www.gnu.org/software/tar/manual/html_node/gzip.html#auto_002dcompress
@@ -205,6 +237,13 @@ In general, the rules for selftests are
* Don't cause the top-level "make run_tests" to fail if your feature is
unconfigured.
+ * The output of tests must conform to the TAP standard to ensure high
+ testing quality and to capture failures/errors with specific details.
+ The kselftest.h and kselftest_harness.h headers provide wrappers for
+ outputting test results. These wrappers should be used for pass,
+ fail, exit, and skip messages. CI systems can easily parse TAP output
+ messages to detect test results.
+
Contributing new tests (details)
================================
@@ -222,6 +261,10 @@ Contributing new tests (details)
TEST_PROGS, TEST_GEN_PROGS mean it is the executable tested by
default.
+ TEST_GEN_MODS_DIR should be used by tests that require modules to be built
+ before the test starts. The variable will contain the name of the directory
+ containing the modules.
+
TEST_CUSTOM_PROGS should be used by tests that require custom build
rules and prevent common build rule use.
@@ -232,9 +275,21 @@ Contributing new tests (details)
TEST_PROGS_EXTENDED, TEST_GEN_PROGS_EXTENDED mean it is the
executable which is not tested by default.
+
TEST_FILES, TEST_GEN_FILES mean it is the file which is used by
test.
+ TEST_INCLUDES is similar to TEST_FILES, it lists files which should be
+ included when exporting or installing the tests, with the following
+ differences:
+
+ * symlinks to files in other directories are preserved
+ * the part of paths below tools/testing/selftests/ is preserved when
+ copying the files to the output directory
+
+ TEST_INCLUDES is meant to list dependencies located in other directories of
+ the selftests hierarchy.
+
* First use the headers inside the kernel source and/or git repo, and then the
system headers. Headers for the kernel release as opposed to headers
installed by the distro on the system should be the primary focus to be able
@@ -292,7 +347,7 @@ kselftest. We use kselftests for lib/ as an example.
1. Create the test module
2. Create the test script that will run (load/unload) the module
- e.g. ``tools/testing/selftests/lib/printf.sh``
+ e.g. ``tools/testing/selftests/lib/bitmap.sh``
3. Add line to config file e.g. ``tools/testing/selftests/lib/config``
diff --git a/Documentation/dev-tools/ktap.rst b/Documentation/dev-tools/ktap.rst
index 414c105b10a9..a9810bed5fd4 100644
--- a/Documentation/dev-tools/ktap.rst
+++ b/Documentation/dev-tools/ktap.rst
@@ -5,7 +5,7 @@ The Kernel Test Anything Protocol (KTAP), version 1
===================================================
TAP, or the Test Anything Protocol is a format for specifying test results used
-by a number of projects. It's website and specification are found at this `link
+by a number of projects. Its website and specification are found at this `link
<https://testanything.org/>`_. The Linux Kernel largely uses TAP output for test
results. However, Kernel testing frameworks have special needs for test results
which don't align with the original TAP specification. Thus, a "Kernel TAP"
@@ -20,6 +20,7 @@ machine-readable, whereas the diagnostic data is unstructured and is there to
aid human debugging.
KTAP output is built from four different types of lines:
+
- Version lines
- Plan lines
- Test case result lines
@@ -38,6 +39,7 @@ All KTAP-formatted results begin with a "version line" which specifies which
version of the (K)TAP standard the result is compliant with.
For example:
+
- "KTAP version 1"
- "TAP version 13"
- "TAP version 14"
@@ -276,6 +278,7 @@ Example KTAP output
This output defines the following hierarchy:
A single test called "main_test", which fails, and has three subtests:
+
- "example_test_1", which passes, and has one subtest:
- "test_1", which passes, and outputs the diagnostic message "test_1: initializing test_1"
diff --git a/Documentation/dev-tools/kunit/api/clk.rst b/Documentation/dev-tools/kunit/api/clk.rst
new file mode 100644
index 000000000000..eeaa50089453
--- /dev/null
+++ b/Documentation/dev-tools/kunit/api/clk.rst
@@ -0,0 +1,10 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+========
+Clk API
+========
+
+The KUnit clk API is used to test clk providers and clk consumers.
+
+.. kernel-doc:: drivers/clk/clk_kunit_helpers.c
+ :export:
diff --git a/Documentation/dev-tools/kunit/api/index.rst b/Documentation/dev-tools/kunit/api/index.rst
index 2d8f756aab56..5cdb552a0808 100644
--- a/Documentation/dev-tools/kunit/api/index.rst
+++ b/Documentation/dev-tools/kunit/api/index.rst
@@ -9,11 +9,17 @@ API Reference
test
resource
functionredirection
+ clk
+ of
+ platformdevice
This page documents the KUnit kernel testing API. It is divided into the
following sections:
+Core KUnit API
+==============
+
Documentation/dev-tools/kunit/api/test.rst
- Documents all of the standard testing API
@@ -25,3 +31,18 @@ Documentation/dev-tools/kunit/api/resource.rst
Documentation/dev-tools/kunit/api/functionredirection.rst
- Documents the KUnit Function Redirection API
+
+Driver KUnit API
+================
+
+Documentation/dev-tools/kunit/api/clk.rst
+
+ - Documents the KUnit clk API
+
+Documentation/dev-tools/kunit/api/of.rst
+
+ - Documents the KUnit device tree (OF) API
+
+Documentation/dev-tools/kunit/api/platformdevice.rst
+
+ - Documents the KUnit platform device API
diff --git a/Documentation/dev-tools/kunit/api/of.rst b/Documentation/dev-tools/kunit/api/of.rst
new file mode 100644
index 000000000000..cb4193dcddbb
--- /dev/null
+++ b/Documentation/dev-tools/kunit/api/of.rst
@@ -0,0 +1,13 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+====================
+Device Tree (OF) API
+====================
+
+The KUnit device tree API is used to test device tree (of_*) dependent code.
+
+.. kernel-doc:: include/kunit/of.h
+ :internal:
+
+.. kernel-doc:: drivers/of/of_kunit_helpers.c
+ :export:
diff --git a/Documentation/dev-tools/kunit/api/platformdevice.rst b/Documentation/dev-tools/kunit/api/platformdevice.rst
new file mode 100644
index 000000000000..49ddd5729003
--- /dev/null
+++ b/Documentation/dev-tools/kunit/api/platformdevice.rst
@@ -0,0 +1,10 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+===================
+Platform Device API
+===================
+
+The KUnit platform device API is used to test platform devices.
+
+.. kernel-doc:: lib/kunit/platform.c
+ :export:
diff --git a/Documentation/dev-tools/kunit/api/resource.rst b/Documentation/dev-tools/kunit/api/resource.rst
index 0a94f831259e..ec6002a6b0db 100644
--- a/Documentation/dev-tools/kunit/api/resource.rst
+++ b/Documentation/dev-tools/kunit/api/resource.rst
@@ -11,3 +11,12 @@ state on a per-test basis, register custom cleanup actions, and more.
.. kernel-doc:: include/kunit/resource.h
:internal:
+
+Managed Devices
+---------------
+
+Functions for using KUnit-managed struct device and struct device_driver.
+Include ``kunit/device.h`` to use these.
+
+.. kernel-doc:: include/kunit/device.h
+ :internal:
diff --git a/Documentation/dev-tools/kunit/architecture.rst b/Documentation/dev-tools/kunit/architecture.rst
index e95ab05342bb..f335f883f8f6 100644
--- a/Documentation/dev-tools/kunit/architecture.rst
+++ b/Documentation/dev-tools/kunit/architecture.rst
@@ -119,9 +119,9 @@ All expectations/assertions are formatted as:
terminated immediately.
- Assertions call the function:
- ``void __noreturn kunit_abort(struct kunit *)``.
+ ``void __noreturn __kunit_abort(struct kunit *)``.
- - ``kunit_abort`` calls the function:
+ - ``__kunit_abort`` calls the function:
``void __noreturn kunit_try_catch_throw(struct kunit_try_catch *try_catch)``.
- ``kunit_try_catch_throw`` calls the function:
diff --git a/Documentation/dev-tools/kunit/run_manual.rst b/Documentation/dev-tools/kunit/run_manual.rst
index e7b46421f247..98e8d5b28808 100644
--- a/Documentation/dev-tools/kunit/run_manual.rst
+++ b/Documentation/dev-tools/kunit/run_manual.rst
@@ -35,6 +35,12 @@ or be built into the kernel.
a good way of quickly testing everything applicable to the current
config.
+ KUnit can be enabled or disabled at boot time, and this behavior is
+ controlled by the kunit.enable kernel parameter.
+ By default, kunit.enable is set to 1 because KUNIT_DEFAULT_ENABLED is
+ enabled by default. To ensure that tests are executed as expected,
+ verify that kunit.enable=1 at boot time.
+
Once we have built our kernel (and/or modules), it is simple to run
the tests. If the tests are built-in, they will run automatically on the
kernel boot. The results will be written to the kernel log (``dmesg``)
@@ -49,9 +55,52 @@ loaded.
The results will appear in TAP format in ``dmesg``.
+debugfs
+=======
+
+KUnit can be accessed from userspace via the debugfs filesystem (See more
+information about debugfs at Documentation/filesystems/debugfs.rst).
+
+If ``CONFIG_KUNIT_DEBUGFS`` is enabled, the KUnit debugfs filesystem is
+mounted at /sys/kernel/debug/kunit. You can use this filesystem to perform
+the following actions.
+
+Retrieve Test Results
+=====================
+
+You can use debugfs to retrieve KUnit test results. The test results are
+accessible from the debugfs filesystem in the following read-only file:
+
+.. code-block :: bash
+
+ /sys/kernel/debug/kunit/<test_suite>/results
+
+The test results are printed in a KTAP document. Note this document is separate
+to the kernel log and thus, may have different test suite numbering.
+
+Run Tests After Kernel Has Booted
+=================================
+
+You can use the debugfs filesystem to trigger built-in tests to run after
+boot. To run the test suite, you can use the following command to write to
+the ``/sys/kernel/debug/kunit/<test_suite>/run`` file:
+
+.. code-block :: bash
+
+ echo "any string" > /sys/kernel/debugfs/kunit/<test_suite>/run
+
+As a result, the test suite runs and the results are printed to the kernel
+log.
+
+However, this feature is not available with KUnit suites that use init data,
+because init data may have been discarded after the kernel boots. KUnit
+suites that use init data should be defined using the
+kunit_test_init_section_suites() macro.
+
+Also, you cannot use this feature to run tests concurrently. Instead a test
+will wait to run until other tests have completed or failed.
+
.. note ::
- If ``CONFIG_KUNIT_DEBUGFS`` is enabled, KUnit test results will
- be accessible from the ``debugfs`` filesystem (if mounted).
- They will be in ``/sys/kernel/debug/kunit/<test_suite>/results``, in
- TAP format.
+ For test authors, to use this feature, tests will need to correctly initialise
+ and/or clean up any data, so the test runs correctly a second time.
diff --git a/Documentation/dev-tools/kunit/run_wrapper.rst b/Documentation/dev-tools/kunit/run_wrapper.rst
index dafe8eb28d30..6697c71ee8ca 100644
--- a/Documentation/dev-tools/kunit/run_wrapper.rst
+++ b/Documentation/dev-tools/kunit/run_wrapper.rst
@@ -182,6 +182,8 @@ via UML. To run tests on qemu, by default it requires two flags:
is ignored), the tests will run via UML. Non-UML architectures,
for example: i386, x86_64, arm and so on; run on qemu.
+ ``--arch help`` lists all valid ``--arch`` values.
+
- ``--cross_compile``: Specifies the Kbuild toolchain. It passes the
same argument as passed to the ``CROSS_COMPILE`` variable used by
Kbuild. As a reminder, this will be the prefix for the toolchain
@@ -321,3 +323,15 @@ command line arguments:
- ``--json``: If set, stores the test results in a JSON format and prints to `stdout` or
saves to a file if a filename is specified.
+
+- ``--filter``: Specifies filters on test attributes, for example, ``speed!=slow``.
+ Multiple filters can be used by wrapping input in quotes and separating filters
+ by commas. Example: ``--filter "speed>slow, module=example"``.
+
+- ``--filter_action``: If set to ``skip``, filtered tests will be shown as skipped
+ in the output rather than showing no output.
+
+- ``--list_tests``: If set, lists all tests that will be run.
+
+- ``--list_tests_attr``: If set, lists all tests that will be run and all of their
+ attributes.
diff --git a/Documentation/dev-tools/kunit/running_tips.rst b/Documentation/dev-tools/kunit/running_tips.rst
index 8e8c493f17d1..bd689db6fdd2 100644
--- a/Documentation/dev-tools/kunit/running_tips.rst
+++ b/Documentation/dev-tools/kunit/running_tips.rst
@@ -139,6 +139,17 @@ If your installed version of gcc doesn't work, you can tweak the steps:
$ ./tools/testing/kunit/kunit.py run --make_options=CC=/usr/bin/gcc-6
$ lcov -t "my_kunit_tests" -o coverage.info -c -d .kunit/ --gcov-tool=/usr/bin/gcov-6
+Alternatively, LLVM-based toolchains can also be used:
+
+.. code-block:: bash
+
+ # Build with LLVM and append coverage options to the current config
+ $ ./tools/testing/kunit/kunit.py run --make_options LLVM=1 --kunitconfig=.kunit/ --kunitconfig=tools/testing/kunit/configs/coverage_uml.config
+ $ llvm-profdata merge -sparse default.profraw -o default.profdata
+ $ llvm-cov export --format=lcov .kunit/vmlinux -instr-profile default.profdata > coverage.info
+ # The coverage.info file is in lcov-compatible format and it can be used to e.g. generate HTML report
+ $ genhtml -o /tmp/coverage_html coverage.info
+
Running tests manually
======================
@@ -262,3 +273,176 @@ other code executed during boot, e.g.
# Reset coverage counters before running the test.
$ echo 0 > /sys/kernel/debug/gcov/reset
$ modprobe kunit-example-test
+
+
+Test Attributes and Filtering
+=============================
+
+Test suites and cases can be marked with test attributes, such as speed of
+test. These attributes will later be printed in test output and can be used to
+filter test execution.
+
+Marking Test Attributes
+-----------------------
+
+Tests are marked with an attribute by including a ``kunit_attributes`` object
+in the test definition.
+
+Test cases can be marked using the ``KUNIT_CASE_ATTR(test_name, attributes)``
+macro to define the test case instead of ``KUNIT_CASE(test_name)``.
+
+.. code-block:: c
+
+ static const struct kunit_attributes example_attr = {
+ .speed = KUNIT_VERY_SLOW,
+ };
+
+ static struct kunit_case example_test_cases[] = {
+ KUNIT_CASE_ATTR(example_test, example_attr),
+ };
+
+.. note::
+ To mark a test case as slow, you can also use ``KUNIT_CASE_SLOW(test_name)``.
+ This is a helpful macro as the slow attribute is the most commonly used.
+
+Test suites can be marked with an attribute by setting the "attr" field in the
+suite definition.
+
+.. code-block:: c
+
+ static const struct kunit_attributes example_attr = {
+ .speed = KUNIT_VERY_SLOW,
+ };
+
+ static struct kunit_suite example_test_suite = {
+ ...,
+ .attr = example_attr,
+ };
+
+.. note::
+ Not all attributes need to be set in a ``kunit_attributes`` object. Unset
+ attributes will remain uninitialized and act as though the attribute is set
+ to 0 or NULL. Thus, if an attribute is set to 0, it is treated as unset.
+ These unset attributes will not be reported and may act as a default value
+ for filtering purposes.
+
+Reporting Attributes
+--------------------
+
+When a user runs tests, attributes will be present in the raw kernel output (in
+KTAP format). Note that attributes will be hidden by default in kunit.py output
+for all passing tests but the raw kernel output can be accessed using the
+``--raw_output`` flag. This is an example of how test attributes for test cases
+will be formatted in kernel output:
+
+.. code-block:: none
+
+ # example_test.speed: slow
+ ok 1 example_test
+
+This is an example of how test attributes for test suites will be formatted in
+kernel output:
+
+.. code-block:: none
+
+ KTAP version 2
+ # Subtest: example_suite
+ # module: kunit_example_test
+ 1..3
+ ...
+ ok 1 example_suite
+
+Additionally, users can output a full attribute report of tests with their
+attributes, using the command line flag ``--list_tests_attr``:
+
+.. code-block:: bash
+
+ kunit.py run "example" --list_tests_attr
+
+.. note::
+ This report can be accessed when running KUnit manually by passing in the
+ module_param ``kunit.action=list_attr``.
+
+Filtering
+---------
+
+Users can filter tests using the ``--filter`` command line flag when running
+tests. As an example:
+
+.. code-block:: bash
+
+ kunit.py run --filter speed=slow
+
+
+You can also use the following operations on filters: "<", ">", "<=", ">=",
+"!=", and "=". Example:
+
+.. code-block:: bash
+
+ kunit.py run --filter "speed>slow"
+
+This example will run all tests with speeds faster than slow. Note that the
+characters < and > are often interpreted by the shell, so they may need to be
+quoted or escaped, as above.
+
+Additionally, you can use multiple filters at once. Simply separate filters
+using commas. Example:
+
+.. code-block:: bash
+
+ kunit.py run --filter "speed>slow, module=kunit_example_test"
+
+.. note::
+ You can use this filtering feature when running KUnit manually by passing
+ the filter as a module param: ``kunit.filter="speed>slow, speed<=normal"``.
+
+Filtered tests will not run or show up in the test output. You can use the
+``--filter_action=skip`` flag to skip filtered tests instead. These tests will be
+shown in the test output in the test but will not run. To use this feature when
+running KUnit manually, use the module param ``kunit.filter_action=skip``.
+
+Rules of Filtering Procedure
+----------------------------
+
+Since both suites and test cases can have attributes, there may be conflicts
+between attributes during filtering. The process of filtering follows these
+rules:
+
+- Filtering always operates at a per-test level.
+
+- If a test has an attribute set, then the test's value is filtered on.
+
+- Otherwise, the value falls back to the suite's value.
+
+- If neither are set, the attribute has a global "default" value, which is used.
+
+List of Current Attributes
+--------------------------
+
+``speed``
+
+This attribute indicates the speed of a test's execution (how slow or fast the
+test is).
+
+This attribute is saved as an enum with the following categories: "normal",
+"slow", or "very_slow". The assumed default speed for tests is "normal". This
+indicates that the test takes a relatively trivial amount of time (less than
+1 second), regardless of the machine it is running on. Any test slower than
+this could be marked as "slow" or "very_slow".
+
+The macro ``KUNIT_CASE_SLOW(test_name)`` can be easily used to set the speed
+of a test case to "slow".
+
+``module``
+
+This attribute indicates the name of the module associated with the test.
+
+This attribute is automatically saved as a string and is printed for each suite.
+Tests can also be filtered using this attribute.
+
+``is_init``
+
+This attribute indicates whether the test uses init data or functions.
+
+This attribute is automatically saved as a boolean and tests can also be
+filtered using this attribute.
diff --git a/Documentation/dev-tools/kunit/start.rst b/Documentation/dev-tools/kunit/start.rst
index c736613c9b19..a98235326bab 100644
--- a/Documentation/dev-tools/kunit/start.rst
+++ b/Documentation/dev-tools/kunit/start.rst
@@ -250,15 +250,20 @@ Now we are ready to write the test cases.
};
kunit_test_suite(misc_example_test_suite);
+ MODULE_LICENSE("GPL");
+
2. Add the following lines to ``drivers/misc/Kconfig``:
.. code-block:: kconfig
config MISC_EXAMPLE_TEST
tristate "Test for my example" if !KUNIT_ALL_TESTS
- depends on MISC_EXAMPLE && KUNIT=y
+ depends on MISC_EXAMPLE && KUNIT
default KUNIT_ALL_TESTS
+Note: If your test does not support being built as a loadable module (which is
+discouraged), replace tristate by bool, and depend on KUNIT=y instead of KUNIT.
+
3. Add the following lines to ``drivers/misc/Makefile``:
.. code-block:: make
diff --git a/Documentation/dev-tools/kunit/style.rst b/Documentation/dev-tools/kunit/style.rst
index b6d0d7359f00..eac81a714a29 100644
--- a/Documentation/dev-tools/kunit/style.rst
+++ b/Documentation/dev-tools/kunit/style.rst
@@ -188,15 +188,26 @@ For example, a Kconfig entry might look like:
Test File and Module Names
==========================
-KUnit tests can often be compiled as a module. These modules should be named
-after the test suite, followed by ``_test``. If this is likely to conflict with
-non-KUnit tests, the suffix ``_kunit`` can also be used.
+KUnit tests are often compiled as a separate module. To avoid conflicting
+with regular modules, KUnit modules should be named after the test suite,
+followed by ``_kunit`` (e.g. if "foobar" is the core module, then
+"foobar_kunit" is the KUnit test module).
-The easiest way of achieving this is to name the file containing the test suite
-``<suite>_test.c`` (or, as above, ``<suite>_kunit.c``). This file should be
-placed next to the code under test.
+Test source files, whether compiled as a separate module or an
+``#include`` in another source file, are best kept in a ``tests/``
+subdirectory to not conflict with other source files (e.g. for
+tab-completion).
+
+Note that the ``_test`` suffix has also been used in some existing
+tests. The ``_kunit`` suffix is preferred, as it makes the distinction
+between KUnit and non-KUnit tests clearer.
+
+So for the common case, name the file containing the test suite
+``tests/<suite>_kunit.c``. The ``tests`` directory should be placed at
+the same level as the code under test. For example, tests for
+``lib/string.c`` live in ``lib/tests/string_kunit.c``.
If the suite name contains some or all of the name of the test's parent
-directory, it may make sense to modify the source filename to reduce redundancy.
-For example, a ``foo_firmware`` suite could be in the ``foo/firmware_test.c``
-file.
+directory, it may make sense to modify the source filename to reduce
+redundancy. For example, a ``foo_firmware`` suite could be in the
+``foo/tests/firmware_kunit.c`` file.
diff --git a/Documentation/dev-tools/kunit/usage.rst b/Documentation/dev-tools/kunit/usage.rst
index 9faf2b4153fc..ebd06f5ea455 100644
--- a/Documentation/dev-tools/kunit/usage.rst
+++ b/Documentation/dev-tools/kunit/usage.rst
@@ -121,6 +121,12 @@ there's an allocation error.
``return`` so they only work from the test function. In KUnit, we stop the
current kthread on failure, so you can call them from anywhere.
+.. note::
+ Warning: There is an exception to the above rule. You shouldn't use assertions
+ in the suite's exit() function, or in the free function for a resource. These
+ run when a test is shutting down, and an assertion here prevents further
+ cleanup code from running, potentially leading to a memory leak.
+
Customizing error messages
--------------------------
@@ -160,7 +166,12 @@ many similar tests. In order to reduce duplication in these closely related
tests, most unit testing frameworks (including KUnit) provide the concept of a
*test suite*. A test suite is a collection of test cases for a unit of code
with optional setup and teardown functions that run before/after the whole
-suite and/or every test case. For example:
+suite and/or every test case.
+
+.. note::
+ A test case will only run if it is associated with a test suite.
+
+For example:
.. code-block:: c
@@ -190,7 +201,10 @@ after everything else. ``kunit_test_suite(example_test_suite)`` registers the
test suite with the KUnit test framework.
.. note::
- A test case will only run if it is associated with a test suite.
+ The ``exit`` and ``suite_exit`` functions will run even if ``init`` or
+ ``suite_init`` fail. Make sure that they can handle any inconsistent
+ state which may result from ``init`` or ``suite_init`` encountering errors
+ or exiting early.
``kunit_test_suite(...)`` is a macro which tells the linker to put the
specified test suite in a special linker section so that it can be run by KUnit
@@ -528,11 +542,31 @@ There is more boilerplate code involved, but it can:
Parameterized Testing
~~~~~~~~~~~~~~~~~~~~~
-The table-driven testing pattern is common enough that KUnit has special
-support for it.
+To run a test case against multiple inputs, KUnit provides a parameterized
+testing framework. This feature formalizes and extends the concept of
+table-driven tests discussed previously.
+
+A KUnit test is determined to be parameterized if a parameter generator function
+is provided when registering the test case. A test user can either write their
+own generator function or use one that is provided by KUnit. The generator
+function is stored in ``kunit_case->generate_params`` and can be set using the
+macros described in the section below.
+
+To establish the terminology, a "parameterized test" is a test which is run
+multiple times (once per "parameter" or "parameter run"). Each parameter run has
+both its own independent ``struct kunit`` (the "parameter run context") and
+access to a shared parent ``struct kunit`` (the "parameterized test context").
-By reusing the same ``cases`` array from above, we can write the test as a
-"parameterized test" with the following.
+Passing Parameters to a Test
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+There are three ways to provide the parameters to a test:
+
+Array Parameter Macros:
+
+ KUnit provides special support for the common table-driven testing pattern.
+ By applying either ``KUNIT_ARRAY_PARAM`` or ``KUNIT_ARRAY_PARAM_DESC`` to the
+ ``cases`` array from the previous section, we can create a parameterized test
+ as shown below:
.. code-block:: c
@@ -541,7 +575,7 @@ By reusing the same ``cases`` array from above, we can write the test as a
const char *str;
const char *sha1;
};
- const struct sha1_test_case cases[] = {
+ static const struct sha1_test_case cases[] = {
{
.str = "hello world",
.sha1 = "2aae6c35c94fcfb415dbe95f408b9ce91ee846ed",
@@ -552,13 +586,9 @@ By reusing the same ``cases`` array from above, we can write the test as a
},
};
- // Need a helper function to generate a name for each test case.
- static void case_to_desc(const struct sha1_test_case *t, char *desc)
- {
- strcpy(desc, t->str);
- }
- // Creates `sha1_gen_params()` to iterate over `cases`.
- KUNIT_ARRAY_PARAM(sha1, cases, case_to_desc);
+ // Creates `sha1_gen_params()` to iterate over `cases` while using
+ // the struct member `str` for the case description.
+ KUNIT_ARRAY_PARAM_DESC(sha1, cases, str);
// Looks no different from a normal test.
static void sha1_test(struct kunit *test)
@@ -574,12 +604,324 @@ By reusing the same ``cases`` array from above, we can write the test as a
}
// Instead of KUNIT_CASE, we use KUNIT_CASE_PARAM and pass in the
- // function declared by KUNIT_ARRAY_PARAM.
+ // function declared by KUNIT_ARRAY_PARAM or KUNIT_ARRAY_PARAM_DESC.
static struct kunit_case sha1_test_cases[] = {
KUNIT_CASE_PARAM(sha1_test, sha1_gen_params),
{}
};
+Custom Parameter Generator Function:
+
+ The generator function is responsible for generating parameters one-by-one
+ and has the following signature:
+ ``const void* (*)(struct kunit *test, const void *prev, char *desc)``.
+ You can pass the generator function to the ``KUNIT_CASE_PARAM``
+ or ``KUNIT_CASE_PARAM_WITH_INIT`` macros.
+
+ The function receives the previously generated parameter as the ``prev`` argument
+ (which is ``NULL`` on the first call) and can also access the parameterized
+ test context passed as the ``test`` argument. KUnit calls this function
+ repeatedly until it returns ``NULL``, which signifies that a parameterized
+ test ended.
+
+ Below is an example of how it works:
+
+.. code-block:: c
+
+ #define MAX_TEST_BUFFER_SIZE 8
+
+ // Example generator function. It produces a sequence of buffer sizes that
+ // are powers of two, starting at 1 (e.g., 1, 2, 4, 8).
+ static const void *buffer_size_gen_params(struct kunit *test, const void *prev, char *desc)
+ {
+ long prev_buffer_size = (long)prev;
+ long next_buffer_size = 1; // Start with an initial size of 1.
+
+ // Stop generating parameters if the limit is reached or exceeded.
+ if (prev_buffer_size >= MAX_TEST_BUFFER_SIZE)
+ return NULL;
+
+ // For subsequent calls, calculate the next size by doubling the previous one.
+ if (prev)
+ next_buffer_size = prev_buffer_size << 1;
+
+ return (void *)next_buffer_size;
+ }
+
+ // Simple test to validate that kunit_kzalloc provides zeroed memory.
+ static void buffer_zero_test(struct kunit *test)
+ {
+ long buffer_size = (long)test->param_value;
+ // Use kunit_kzalloc to allocate a zero-initialized buffer. This makes the
+ // memory "parameter run managed," meaning it's automatically cleaned up at
+ // the end of each parameter run.
+ int *buf = kunit_kzalloc(test, buffer_size * sizeof(int), GFP_KERNEL);
+
+ // Ensure the allocation was successful.
+ KUNIT_ASSERT_NOT_NULL(test, buf);
+
+ // Loop through the buffer and confirm every element is zero.
+ for (int i = 0; i < buffer_size; i++)
+ KUNIT_EXPECT_EQ(test, buf[i], 0);
+ }
+
+ static struct kunit_case buffer_test_cases[] = {
+ KUNIT_CASE_PARAM(buffer_zero_test, buffer_size_gen_params),
+ {}
+ };
+
+Runtime Parameter Array Registration in the Init Function:
+
+ For scenarios where you might need to initialize a parameterized test, you
+ can directly register a parameter array to the parameterized test context.
+
+ To do this, you must pass the parameterized test context, the array itself,
+ the array size, and a ``get_description()`` function to the
+ ``kunit_register_params_array()`` macro. This macro populates
+ ``struct kunit_params`` within the parameterized test context, effectively
+ storing a parameter array object. The ``get_description()`` function will
+ be used for populating parameter descriptions and has the following signature:
+ ``void (*)(struct kunit *test, const void *param, char *desc)``. Note that it
+ also has access to the parameterized test context.
+
+ .. important::
+ When using this way to register a parameter array, you will need to
+ manually pass ``kunit_array_gen_params()`` as the generator function to
+ ``KUNIT_CASE_PARAM_WITH_INIT``. ``kunit_array_gen_params()`` is a KUnit
+ helper that will use the registered array to generate the parameters.
+
+ If needed, instead of passing the KUnit helper, you can also pass your
+ own custom generator function that utilizes the parameter array. To
+ access the parameter array from within the parameter generator
+ function use ``test->params_array.params``.
+
+ The ``kunit_register_params_array()`` macro should be called within a
+ ``param_init()`` function that initializes the parameterized test and has
+ the following signature ``int (*)(struct kunit *test)``. For a detailed
+ explanation of this mechanism please refer to the "Adding Shared Resources"
+ section that is after this one. This method supports registering both
+ dynamically built and static parameter arrays.
+
+ The code snippet below shows the ``example_param_init_dynamic_arr`` test that
+ utilizes ``make_fibonacci_params()`` to create a dynamic array, which is then
+ registered using ``kunit_register_params_array()``. To see the full code
+ please refer to lib/kunit/kunit-example-test.c.
+
+.. code-block:: c
+
+ /*
+ * Example of a parameterized test param_init() function that registers a dynamic
+ * array of parameters.
+ */
+ static int example_param_init_dynamic_arr(struct kunit *test)
+ {
+ size_t seq_size;
+ int *fibonacci_params;
+
+ kunit_info(test, "initializing parameterized test\n");
+
+ seq_size = 6;
+ fibonacci_params = make_fibonacci_params(test, seq_size);
+ if (!fibonacci_params)
+ return -ENOMEM;
+ /*
+ * Passes the dynamic parameter array information to the parameterized test
+ * context struct kunit. The array and its metadata will be stored in
+ * test->parent->params_array. The array itself will be located in
+ * params_data.params.
+ */
+ kunit_register_params_array(test, fibonacci_params, seq_size,
+ example_param_dynamic_arr_get_desc);
+ return 0;
+ }
+
+ static struct kunit_case example_test_cases[] = {
+ /*
+ * Note how we pass kunit_array_gen_params() to use the array we
+ * registered in example_param_init_dynamic_arr() to generate
+ * parameters.
+ */
+ KUNIT_CASE_PARAM_WITH_INIT(example_params_test_with_init_dynamic_arr,
+ kunit_array_gen_params,
+ example_param_init_dynamic_arr,
+ example_param_exit_dynamic_arr),
+ {}
+ };
+
+Adding Shared Resources
+^^^^^^^^^^^^^^^^^^^^^^^
+All parameter runs in this framework hold a reference to the parameterized test
+context, which can be accessed using the parent ``struct kunit`` pointer. The
+parameterized test context is not used to execute any test logic itself; instead,
+it serves as a container for shared resources.
+
+It's possible to add resources to share between parameter runs within a
+parameterized test by using ``KUNIT_CASE_PARAM_WITH_INIT``, to which you pass
+custom ``param_init()`` and ``param_exit()`` functions. These functions run once
+before and once after the parameterized test, respectively.
+
+The ``param_init()`` function, with the signature ``int (*)(struct kunit *test)``,
+can be used for adding resources to the ``resources`` or ``priv`` fields of
+the parameterized test context, registering the parameter array, and any other
+initialization logic.
+
+The ``param_exit()`` function, with the signature ``void (*)(struct kunit *test)``,
+can be used to release any resources that were not parameterized test managed (i.e.
+not automatically cleaned up after the parameterized test ends) and for any other
+exit logic.
+
+Both ``param_init()`` and ``param_exit()`` are passed the parameterized test
+context behind the scenes. However, the test case function receives the parameter
+run context. Therefore, to manage and access shared resources from within a test
+case function, you must use ``test->parent``.
+
+For instance, finding a shared resource allocated by the Resource API requires
+passing ``test->parent`` to ``kunit_find_resource()``. This principle extends to
+all other APIs that might be used in the test case function, including
+``kunit_kzalloc()``, ``kunit_kmalloc_array()``, and others (see
+Documentation/dev-tools/kunit/api/test.rst and the
+Documentation/dev-tools/kunit/api/resource.rst).
+
+.. note::
+ The ``suite->init()`` function, which executes before each parameter run,
+ receives the parameter run context. Therefore, any resources set up in
+ ``suite->init()`` are cleaned up after each parameter run.
+
+The code below shows how you can add the shared resources. Note that this code
+utilizes the Resource API, which you can read more about here:
+Documentation/dev-tools/kunit/api/resource.rst. To see the full version of this
+code please refer to lib/kunit/kunit-example-test.c.
+
+.. code-block:: c
+
+ static int example_resource_init(struct kunit_resource *res, void *context)
+ {
+ ... /* Code that allocates memory and stores context in res->data. */
+ }
+
+ /* This function deallocates memory for the kunit_resource->data field. */
+ static void example_resource_free(struct kunit_resource *res)
+ {
+ kfree(res->data);
+ }
+
+ /* This match function locates a test resource based on defined criteria. */
+ static bool example_resource_alloc_match(struct kunit *test, struct kunit_resource *res,
+ void *match_data)
+ {
+ return res->data && res->free == example_resource_free;
+ }
+
+ /* Function to initialize the parameterized test. */
+ static int example_param_init(struct kunit *test)
+ {
+ int ctx = 3; /* Data to be stored. */
+ void *data = kunit_alloc_resource(test, example_resource_init,
+ example_resource_free,
+ GFP_KERNEL, &ctx);
+ if (!data)
+ return -ENOMEM;
+ kunit_register_params_array(test, example_params_array,
+ ARRAY_SIZE(example_params_array));
+ return 0;
+ }
+
+ /* Example test that uses shared resources in test->resources. */
+ static void example_params_test_with_init(struct kunit *test)
+ {
+ int threshold;
+ const struct example_param *param = test->param_value;
+ /* Here we pass test->parent to access the parameterized test context. */
+ struct kunit_resource *res = kunit_find_resource(test->parent,
+ example_resource_alloc_match,
+ NULL);
+
+ threshold = *((int *)res->data);
+ KUNIT_ASSERT_LE(test, param->value, threshold);
+ kunit_put_resource(res);
+ }
+
+ static struct kunit_case example_test_cases[] = {
+ KUNIT_CASE_PARAM_WITH_INIT(example_params_test_with_init, kunit_array_gen_params,
+ example_param_init, NULL),
+ {}
+ };
+
+As an alternative to using the KUnit Resource API for sharing resources, you can
+place them in ``test->parent->priv``. This serves as a more lightweight method
+for resource storage, best for scenarios where complex resource management is
+not required.
+
+As stated previously ``param_init()`` and ``param_exit()`` get the parameterized
+test context. So, you can directly use ``test->priv`` within ``param_init/exit``
+to manage shared resources. However, from within the test case function, you must
+navigate up to the parent ``struct kunit`` i.e. the parameterized test context.
+Therefore, you need to use ``test->parent->priv`` to access those same
+resources.
+
+The resources placed in ``test->parent->priv`` will need to be allocated in
+memory to persist across the parameter runs. If memory is allocated using the
+KUnit memory allocation APIs (described more in the "Allocating Memory" section
+below), you won't need to worry about deallocation. The APIs will make the memory
+parameterized test 'managed', ensuring that it will automatically get cleaned up
+after the parameterized test concludes.
+
+The code below demonstrates example usage of the ``priv`` field for shared
+resources:
+
+.. code-block:: c
+
+ static const struct example_param {
+ int value;
+ } example_params_array[] = {
+ { .value = 3, },
+ { .value = 2, },
+ { .value = 1, },
+ { .value = 0, },
+ };
+
+ /* Initialize the parameterized test context. */
+ static int example_param_init_priv(struct kunit *test)
+ {
+ int ctx = 3; /* Data to be stored. */
+ int arr_size = ARRAY_SIZE(example_params_array);
+
+ /*
+ * Allocate memory using kunit_kzalloc(). Since the `param_init`
+ * function receives the parameterized test context, this memory
+ * allocation will be scoped to the lifetime of the parameterized test.
+ */
+ test->priv = kunit_kzalloc(test, sizeof(int), GFP_KERNEL);
+
+ /* Assign the context value to test->priv.*/
+ *((int *)test->priv) = ctx;
+
+ /* Register the parameter array. */
+ kunit_register_params_array(test, example_params_array, arr_size, NULL);
+ return 0;
+ }
+
+ static void example_params_test_with_init_priv(struct kunit *test)
+ {
+ int threshold;
+ const struct example_param *param = test->param_value;
+
+ /* By design, test->parent will not be NULL. */
+ KUNIT_ASSERT_NOT_NULL(test, test->parent);
+
+ /* Here we use test->parent->priv to access the shared resource. */
+ threshold = *(int *)test->parent->priv;
+
+ KUNIT_ASSERT_LE(test, param->value, threshold);
+ }
+
+ static struct kunit_case example_tests[] = {
+ KUNIT_CASE_PARAM_WITH_INIT(example_params_test_with_init_priv,
+ kunit_array_gen_params,
+ example_param_init_priv, NULL),
+ {}
+ };
+
Allocating Memory
-----------------
@@ -601,17 +943,109 @@ For example:
KUNIT_ASSERT_STREQ(test, buffer, "");
}
+Registering Cleanup Actions
+---------------------------
+
+If you need to perform some cleanup beyond simple use of ``kunit_kzalloc``,
+you can register a custom "deferred action", which is a cleanup function
+run when the test exits (whether cleanly, or via a failed assertion).
+
+Actions are simple functions with no return value, and a single ``void*``
+context argument, and fulfill the same role as "cleanup" functions in Python
+and Go tests, "defer" statements in languages which support them, and
+(in some cases) destructors in RAII languages.
+
+These are very useful for unregistering things from global lists, closing
+files or other resources, or freeing resources.
+
+For example:
+
+.. code-block:: C
+
+ static void cleanup_device(void *ctx)
+ {
+ struct device *dev = (struct device *)ctx;
+
+ device_unregister(dev);
+ }
+
+ void example_device_test(struct kunit *test)
+ {
+ struct my_device dev;
+
+ device_register(&dev);
+
+ kunit_add_action(test, &cleanup_device, &dev);
+ }
+
+Note that, for functions like device_unregister which only accept a single
+pointer-sized argument, it's possible to automatically generate a wrapper
+with the ``KUNIT_DEFINE_ACTION_WRAPPER()`` macro, for example:
+
+.. code-block:: C
+
+ KUNIT_DEFINE_ACTION_WRAPPER(device_unregister, device_unregister_wrapper, struct device *);
+ kunit_add_action(test, &device_unregister_wrapper, &dev);
+
+You should do this in preference to manually casting to the ``kunit_action_t`` type,
+as casting function pointers will break Control Flow Integrity (CFI).
+
+``kunit_add_action`` can fail if, for example, the system is out of memory.
+You can use ``kunit_add_action_or_reset`` instead which runs the action
+immediately if it cannot be deferred.
+
+If you need more control over when the cleanup function is called, you
+can trigger it early using ``kunit_release_action``, or cancel it entirely
+with ``kunit_remove_action``.
+
Testing Static Functions
------------------------
-If we do not want to expose functions or variables for testing, one option is to
-conditionally ``#include`` the test file at the end of your .c file. For
-example:
+If you want to test static functions without exposing those functions outside of
+testing, one option is conditionally export the symbol. When KUnit is enabled,
+the symbol is exposed but remains static otherwise. To use this method, follow
+the template below.
+
+.. code-block:: c
+
+ /* In the file containing functions to test "my_file.c" */
+
+ #include <kunit/visibility.h>
+ #include <my_file.h>
+ ...
+ VISIBLE_IF_KUNIT int do_interesting_thing()
+ {
+ ...
+ }
+ EXPORT_SYMBOL_IF_KUNIT(do_interesting_thing);
+
+ /* In the header file "my_file.h" */
+
+ #if IS_ENABLED(CONFIG_KUNIT)
+ int do_interesting_thing(void);
+ #endif
+
+ /* In the KUnit test file "my_file_test.c" */
+
+ #include <kunit/visibility.h>
+ #include <my_file.h>
+ ...
+ MODULE_IMPORT_NS("EXPORTED_FOR_KUNIT_TESTING");
+ ...
+ // Use do_interesting_thing() in tests
+
+For a full example, see this `patch <https://lore.kernel.org/all/20221207014024.340230-3-rmoar@google.com/>`_
+where a test is modified to conditionally expose static functions for testing
+using the macros above.
+
+As an **alternative** to the method above, you could conditionally ``#include``
+the test file at the end of your .c file. This is not recommended but works
+if needed. For example:
.. code-block:: c
- /* In my_file.c */
+ /* In "my_file.c" */
static int do_interesting_thing();
@@ -728,3 +1162,53 @@ structures as shown below:
KUnit is not enabled, or if no test is running in the current task, it will do
nothing. This compiles down to either a no-op or a static key check, so will
have a negligible performance impact when no test is running.
+
+Managing Fake Devices and Drivers
+---------------------------------
+
+When testing drivers or code which interacts with drivers, many functions will
+require a ``struct device`` or ``struct device_driver``. In many cases, setting
+up a real device is not required to test any given function, so a fake device
+can be used instead.
+
+KUnit provides helper functions to create and manage these fake devices, which
+are internally of type ``struct kunit_device``, and are attached to a special
+``kunit_bus``. These devices support managed device resources (devres), as
+described in Documentation/driver-api/driver-model/devres.rst
+
+To create a KUnit-managed ``struct device_driver``, use ``kunit_driver_create()``,
+which will create a driver with the given name, on the ``kunit_bus``. This driver
+will automatically be destroyed when the corresponding test finishes, but can also
+be manually destroyed with ``driver_unregister()``.
+
+To create a fake device, use the ``kunit_device_register()``, which will create
+and register a device, using a new KUnit-managed driver created with ``kunit_driver_create()``.
+To provide a specific, non-KUnit-managed driver, use ``kunit_device_register_with_driver()``
+instead. Like with managed drivers, KUnit-managed fake devices are automatically
+cleaned up when the test finishes, but can be manually cleaned up early with
+``kunit_device_unregister()``.
+
+The KUnit devices should be used in preference to ``root_device_register()``, and
+instead of ``platform_device_register()`` in cases where the device is not otherwise
+a platform device.
+
+For example:
+
+.. code-block:: c
+
+ #include <kunit/device.h>
+
+ static void test_my_device(struct kunit *test)
+ {
+ struct device *fake_device;
+ const char *dev_managed_string;
+
+ // Create a fake device.
+ fake_device = kunit_device_register(test, "my_device");
+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, fake_device)
+
+ // Pass it to functions which need a device.
+ dev_managed_string = devm_kstrdup(fake_device, "Hello, World!");
+
+ // Everything is cleaned up automatically when the test ends.
+ } \ No newline at end of file
diff --git a/Documentation/dev-tools/lkmm/docs/access-marking.rst b/Documentation/dev-tools/lkmm/docs/access-marking.rst
new file mode 100644
index 000000000000..80058a4da980
--- /dev/null
+++ b/Documentation/dev-tools/lkmm/docs/access-marking.rst
@@ -0,0 +1,11 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Access Marking
+--------------
+
+Literal include of ``tools/memory-model/Documentation/access-marking.txt``.
+
+------------------------------------------------------------------
+
+.. kernel-include:: tools/memory-model/Documentation/access-marking.txt
+ :literal:
diff --git a/Documentation/dev-tools/lkmm/docs/cheatsheet.rst b/Documentation/dev-tools/lkmm/docs/cheatsheet.rst
new file mode 100644
index 000000000000..37681f6a6a8c
--- /dev/null
+++ b/Documentation/dev-tools/lkmm/docs/cheatsheet.rst
@@ -0,0 +1,11 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Cheatsheet
+----------
+
+Literal include of ``tools/memory-model/Documentation/cheatsheet.txt``.
+
+------------------------------------------------------------------
+
+.. kernel-include:: tools/memory-model/Documentation/cheatsheet.txt
+ :literal:
diff --git a/Documentation/dev-tools/lkmm/docs/control-dependencies.rst b/Documentation/dev-tools/lkmm/docs/control-dependencies.rst
new file mode 100644
index 000000000000..5ae97e8861eb
--- /dev/null
+++ b/Documentation/dev-tools/lkmm/docs/control-dependencies.rst
@@ -0,0 +1,11 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Control Dependencies
+--------------------
+
+Literal include of ``tools/memory-model/Documentation/control-dependencies.txt``.
+
+------------------------------------------------------------------
+
+.. kernel-include:: tools/memory-model/Documentation/control-dependencies.txt
+ :literal:
diff --git a/Documentation/dev-tools/lkmm/docs/explanation.rst b/Documentation/dev-tools/lkmm/docs/explanation.rst
new file mode 100644
index 000000000000..0bcba9a5ddf7
--- /dev/null
+++ b/Documentation/dev-tools/lkmm/docs/explanation.rst
@@ -0,0 +1,11 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Explanation
+-----------
+
+Literal include of ``tools/memory-model/Documentation/explanation.txt``.
+
+------------------------------------------------------------------
+
+.. kernel-include:: tools/memory-model/Documentation/explanation.txt
+ :literal:
diff --git a/Documentation/dev-tools/lkmm/docs/glossary.rst b/Documentation/dev-tools/lkmm/docs/glossary.rst
new file mode 100644
index 000000000000..849aefdf3d6e
--- /dev/null
+++ b/Documentation/dev-tools/lkmm/docs/glossary.rst
@@ -0,0 +1,11 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Glossary
+--------
+
+Literal include of ``tools/memory-model/Documentation/glossary.txt``.
+
+------------------------------------------------------------------
+
+.. kernel-include:: tools/memory-model/Documentation/glossary.txt
+ :literal:
diff --git a/Documentation/dev-tools/lkmm/docs/herd-representation.rst b/Documentation/dev-tools/lkmm/docs/herd-representation.rst
new file mode 100644
index 000000000000..f7b41f286eb9
--- /dev/null
+++ b/Documentation/dev-tools/lkmm/docs/herd-representation.rst
@@ -0,0 +1,11 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+herd-representation
+-------------------
+
+Literal include of ``tools/memory-model/Documentation/herd-representation.txt``.
+
+------------------------------------------------------------------
+
+.. kernel-include:: tools/memory-model/Documentation/herd-representation.txt
+ :literal:
diff --git a/Documentation/dev-tools/lkmm/docs/index.rst b/Documentation/dev-tools/lkmm/docs/index.rst
new file mode 100644
index 000000000000..abbddcc009de
--- /dev/null
+++ b/Documentation/dev-tools/lkmm/docs/index.rst
@@ -0,0 +1,21 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Documentation
+=============
+
+.. toctree::
+ :maxdepth: 1
+
+ readme
+ simple
+ ordering
+ litmus-tests
+ locking
+ recipes
+ control-dependencies
+ access-marking
+ cheatsheet
+ explanation
+ herd-representation
+ glossary
+ references
diff --git a/Documentation/dev-tools/lkmm/docs/litmus-tests.rst b/Documentation/dev-tools/lkmm/docs/litmus-tests.rst
new file mode 100644
index 000000000000..3293f4540156
--- /dev/null
+++ b/Documentation/dev-tools/lkmm/docs/litmus-tests.rst
@@ -0,0 +1,11 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Litmus Tests
+------------
+
+Literal include of ``tools/memory-model/Documentation/litmus-tests.txt``.
+
+------------------------------------------------------------------
+
+.. kernel-include:: tools/memory-model/Documentation/litmus-tests.txt
+ :literal:
diff --git a/Documentation/dev-tools/lkmm/docs/locking.rst b/Documentation/dev-tools/lkmm/docs/locking.rst
new file mode 100644
index 000000000000..b5eae4c0acb7
--- /dev/null
+++ b/Documentation/dev-tools/lkmm/docs/locking.rst
@@ -0,0 +1,11 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Locking
+-------
+
+Literal include of ``tools/memory-model/Documentation/locking.txt``.
+
+------------------------------------------------------------------
+
+.. kernel-include:: tools/memory-model/Documentation/locking.txt
+ :literal:
diff --git a/Documentation/dev-tools/lkmm/docs/ordering.rst b/Documentation/dev-tools/lkmm/docs/ordering.rst
new file mode 100644
index 000000000000..a2343c12462d
--- /dev/null
+++ b/Documentation/dev-tools/lkmm/docs/ordering.rst
@@ -0,0 +1,11 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Ordering
+--------
+
+Literal include of ``tools/memory-model/Documentation/ordering.txt``.
+
+------------------------------------------------------------------
+
+.. kernel-include:: tools/memory-model/Documentation/ordering.txt
+ :literal:
diff --git a/Documentation/dev-tools/lkmm/docs/readme.rst b/Documentation/dev-tools/lkmm/docs/readme.rst
new file mode 100644
index 000000000000..51e7a64e4435
--- /dev/null
+++ b/Documentation/dev-tools/lkmm/docs/readme.rst
@@ -0,0 +1,11 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+README (for LKMM Documentation)
+-------------------------------
+
+Literal include of ``tools/memory-model/Documentation/README``.
+
+------------------------------------------------------------------
+
+.. kernel-include:: tools/memory-model/Documentation/README
+ :literal:
diff --git a/Documentation/dev-tools/lkmm/docs/recipes.rst b/Documentation/dev-tools/lkmm/docs/recipes.rst
new file mode 100644
index 000000000000..e55952640047
--- /dev/null
+++ b/Documentation/dev-tools/lkmm/docs/recipes.rst
@@ -0,0 +1,11 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Recipes
+-------
+
+Literal include of ``tools/memory-model/Documentation/recipes.txt``.
+
+------------------------------------------------------------------
+
+.. kernel-include:: tools/memory-model/Documentation/recipes.txt
+ :literal:
diff --git a/Documentation/dev-tools/lkmm/docs/references.rst b/Documentation/dev-tools/lkmm/docs/references.rst
new file mode 100644
index 000000000000..c6831b3c9c02
--- /dev/null
+++ b/Documentation/dev-tools/lkmm/docs/references.rst
@@ -0,0 +1,11 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+References
+----------
+
+Literal include of ``tools/memory-model/Documentation/references.txt``.
+
+------------------------------------------------------------------
+
+.. kernel-include:: tools/memory-model/Documentation/references.txt
+ :literal:
diff --git a/Documentation/dev-tools/lkmm/docs/simple.rst b/Documentation/dev-tools/lkmm/docs/simple.rst
new file mode 100644
index 000000000000..5c1094c95f45
--- /dev/null
+++ b/Documentation/dev-tools/lkmm/docs/simple.rst
@@ -0,0 +1,11 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Simple
+------
+
+Literal include of ``tools/memory-model/Documentation/simple.txt``.
+
+------------------------------------------------------------------
+
+.. kernel-include:: tools/memory-model/Documentation/simple.txt
+ :literal:
diff --git a/Documentation/dev-tools/lkmm/index.rst b/Documentation/dev-tools/lkmm/index.rst
new file mode 100644
index 000000000000..e52782449ca3
--- /dev/null
+++ b/Documentation/dev-tools/lkmm/index.rst
@@ -0,0 +1,15 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+============================================
+Linux Kernel Memory Consistency Model (LKMM)
+============================================
+
+This section literally renders documents under ``tools/memory-model/``
+and ``tools/memory-model/Documentation/``, which are maintained in
+the *pure* plain text form.
+
+.. toctree::
+ :maxdepth: 2
+
+ readme
+ docs/index
diff --git a/Documentation/dev-tools/lkmm/readme.rst b/Documentation/dev-tools/lkmm/readme.rst
new file mode 100644
index 000000000000..a7f847109584
--- /dev/null
+++ b/Documentation/dev-tools/lkmm/readme.rst
@@ -0,0 +1,11 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+README (for LKMM)
+=================
+
+Literal include of ``tools/memory-model/README``.
+
+------------------------------------------------------------
+
+.. kernel-include:: tools/memory-model/README
+ :literal:
diff --git a/Documentation/dev-tools/propeller.rst b/Documentation/dev-tools/propeller.rst
new file mode 100644
index 000000000000..92195958e3db
--- /dev/null
+++ b/Documentation/dev-tools/propeller.rst
@@ -0,0 +1,162 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=====================================
+Using Propeller with the Linux kernel
+=====================================
+
+This enables Propeller build support for the kernel when using Clang
+compiler. Propeller is a profile-guided optimization (PGO) method used
+to optimize binary executables. Like AutoFDO, it utilizes hardware
+sampling to gather information about the frequency of execution of
+different code paths within a binary. Unlike AutoFDO, this information
+is then used right before linking phase to optimize (among others)
+block layout within and across functions.
+
+A few important notes about adopting Propeller optimization:
+
+#. Although it can be used as a standalone optimization step, it is
+ strongly recommended to apply Propeller on top of AutoFDO,
+ AutoFDO+ThinLTO or Instrument FDO. The rest of this document
+ assumes this paradigm.
+
+#. Propeller uses another round of profiling on top of
+ AutoFDO/AutoFDO+ThinLTO/iFDO. The whole build process involves
+ "build-afdo - train-afdo - build-propeller - train-propeller -
+ build-optimized".
+
+#. Propeller requires LLVM 19 release or later for Clang/Clang++
+ and the linker(ld.lld).
+
+#. In addition to LLVM toolchain, Propeller requires a profiling
+ conversion tool: https://github.com/google/autofdo with a release
+ after v0.30.1: https://github.com/google/autofdo/releases/tag/v0.30.1.
+
+The Propeller optimization process involves the following steps:
+
+#. Initial building: Build the AutoFDO or AutoFDO+ThinLTO binary as
+ you would normally do, but with a set of compile-time / link-time
+ flags, so that a special metadata section is created within the
+ kernel binary. The special section is only intend to be used by the
+ profiling tool, it is not part of the runtime image, nor does it
+ change kernel run time text sections.
+
+#. Profiling: The above kernel is then run with a representative
+ workload to gather execution frequency data. This data is collected
+ using hardware sampling, via perf. Propeller is most effective on
+ platforms supporting advanced PMU features like LBR on Intel
+ machines. This step is the same as profiling the kernel for AutoFDO
+ (the exact perf parameters can be different).
+
+#. Propeller profile generation: Perf output file is converted to a
+ pair of Propeller profiles via an offline tool.
+
+#. Optimized build: Build the AutoFDO or AutoFDO+ThinLTO optimized
+ binary as you would normally do, but with a compile-time /
+ link-time flag to pick up the Propeller compile time and link time
+ profiles. This build step uses 3 profiles - the AutoFDO profile,
+ the Propeller compile-time profile and the Propeller link-time
+ profile.
+
+#. Deployment: The optimized kernel binary is deployed and used
+ in production environments, providing improved performance
+ and reduced latency.
+
+Preparation
+===========
+
+Configure the kernel with::
+
+ CONFIG_AUTOFDO_CLANG=y
+ CONFIG_PROPELLER_CLANG=y
+
+Customization
+=============
+
+The default CONFIG_PROPELLER_CLANG setting covers kernel space objects
+for Propeller builds. One can, however, enable or disable Propeller build
+for individual files and directories by adding a line similar to the
+following to the respective kernel Makefile:
+
+- For enabling a single file (e.g. foo.o)::
+
+ PROPELLER_PROFILE_foo.o := y
+
+- For enabling all files in one directory::
+
+ PROPELLER_PROFILE := y
+
+- For disabling one file::
+
+ PROPELLER_PROFILE_foo.o := n
+
+- For disabling all files in one directory::
+
+ PROPELLER__PROFILE := n
+
+
+Workflow
+========
+
+Here is an example workflow for building an AutoFDO+Propeller kernel:
+
+1) Assuming an AutoFDO profile is already collected following
+ instructions in the AutoFDO document, build the kernel on the host
+ machine, with AutoFDO and Propeller build configs ::
+
+ CONFIG_AUTOFDO_CLANG=y
+ CONFIG_PROPELLER_CLANG=y
+
+ and ::
+
+ $ make LLVM=1 CLANG_AUTOFDO_PROFILE=<autofdo-profile-name>
+
+2) Install the kernel on the test machine.
+
+3) Run the load tests. The '-c' option in perf specifies the sample
+ event period. We suggest using a suitable prime number, like 500009,
+ for this purpose.
+
+ - For Intel platforms::
+
+ $ perf record -e BR_INST_RETIRED.NEAR_TAKEN:k -a -N -b -c <count> -o <perf_file> -- <loadtest>
+
+ - For AMD platforms::
+
+ $ perf record --pfm-event RETIRED_TAKEN_BRANCH_INSTRUCTIONS:k -a -N -b -c <count> -o <perf_file> -- <loadtest>
+
+ Note you can repeat the above steps to collect multiple <perf_file>s.
+
+4) (Optional) Download the raw perf file(s) to the host machine.
+
+5) Use the create_llvm_prof tool (https://github.com/google/autofdo) to
+ generate Propeller profile. ::
+
+ $ create_llvm_prof --binary=<vmlinux> --profile=<perf_file>
+ --format=propeller --propeller_output_module_name
+ --out=<propeller_profile_prefix>_cc_profile.txt
+ --propeller_symorder=<propeller_profile_prefix>_ld_profile.txt
+
+ "<propeller_profile_prefix>" can be something like "/home/user/dir/any_string".
+
+ This command generates a pair of Propeller profiles:
+ "<propeller_profile_prefix>_cc_profile.txt" and
+ "<propeller_profile_prefix>_ld_profile.txt".
+
+ If there are more than 1 perf_file collected in the previous step,
+ you can create a temp list file "<perf_file_list>" with each line
+ containing one perf file name and run::
+
+ $ create_llvm_prof --binary=<vmlinux> --profile=@<perf_file_list>
+ --format=propeller --propeller_output_module_name
+ --out=<propeller_profile_prefix>_cc_profile.txt
+ --propeller_symorder=<propeller_profile_prefix>_ld_profile.txt
+
+6) Rebuild the kernel using the AutoFDO and Propeller
+ profiles. ::
+
+ CONFIG_AUTOFDO_CLANG=y
+ CONFIG_PROPELLER_CLANG=y
+
+ and ::
+
+ $ make LLVM=1 CLANG_AUTOFDO_PROFILE=<profile_file> CLANG_PROPELLER_PROFILE_PREFIX=<propeller_profile_prefix>
diff --git a/Documentation/dev-tools/testing-devices.rst b/Documentation/dev-tools/testing-devices.rst
new file mode 100644
index 000000000000..ab26adb99051
--- /dev/null
+++ b/Documentation/dev-tools/testing-devices.rst
@@ -0,0 +1,47 @@
+.. SPDX-License-Identifier: GPL-2.0
+.. Copyright (c) 2024 Collabora Ltd
+
+=============================
+Device testing with kselftest
+=============================
+
+
+There are a few different kselftests available for testing devices generically,
+with some overlap in coverage and different requirements. This document aims to
+give an overview of each one.
+
+Note: Paths in this document are relative to the kselftest folder
+(``tools/testing/selftests``).
+
+Device oriented kselftests:
+
+* Devicetree (``dt``)
+
+ * **Coverage**: Probe status for devices described in Devicetree
+ * **Requirements**: None
+
+* Error logs (``devices/error_logs``)
+
+ * **Coverage**: Error (or more critical) log messages presence coming from any
+ device
+ * **Requirements**: None
+
+* Discoverable bus (``devices/probe``)
+
+ * **Coverage**: Presence and probe status of USB or PCI devices that have been
+ described in the reference file
+ * **Requirements**: Manually describe the devices that should be tested in a
+ YAML reference file (see ``devices/probe/boards/google,spherion.yaml`` for
+ an example)
+
+* Exist (``devices/exist``)
+
+ * **Coverage**: Presence of all devices
+ * **Requirements**: Generate the reference (see ``devices/exist/README.rst``
+ for details) on a known-good kernel
+
+Therefore, the suggestion is to enable the error log and devicetree tests on all
+(DT-based) platforms, since they don't have any requirements. Then to greatly
+improve coverage, generate the reference for each platform and enable the exist
+test. The discoverable bus test can be used to verify the probe status of
+specific USB or PCI devices, but is probably not worth it for most cases.
diff --git a/Documentation/dev-tools/testing-overview.rst b/Documentation/dev-tools/testing-overview.rst
index 0aaf6ea53608..1619e5e5cc9c 100644
--- a/Documentation/dev-tools/testing-overview.rst
+++ b/Documentation/dev-tools/testing-overview.rst
@@ -104,6 +104,8 @@ Some of these tools are listed below:
KASAN and can be used in production. See Documentation/dev-tools/kfence.rst
* lockdep is a locking correctness validator. See
Documentation/locking/lockdep-design.rst
+* Runtime Verification (RV) supports checking specific behaviours for a given
+ subsystem. See Documentation/trace/rv/runtime-verification.rst
* There are several other pieces of debug instrumentation in the kernel, many
of which can be found in lib/Kconfig.debug
diff --git a/Documentation/dev-tools/ubsan.rst b/Documentation/dev-tools/ubsan.rst
index 1be6618e232d..e3591f8e9d5b 100644
--- a/Documentation/dev-tools/ubsan.rst
+++ b/Documentation/dev-tools/ubsan.rst
@@ -1,5 +1,7 @@
-The Undefined Behavior Sanitizer - UBSAN
-========================================
+.. SPDX-License-Identifier: GPL-2.0
+
+Undefined Behavior Sanitizer - UBSAN
+====================================
UBSAN is a runtime undefined behaviour checker.
@@ -47,34 +49,22 @@ Report example
Usage
-----
-To enable UBSAN configure kernel with::
-
- CONFIG_UBSAN=y
-
-and to check the entire kernel::
-
- CONFIG_UBSAN_SANITIZE_ALL=y
-
-To enable instrumentation for specific files or directories, add a line
-similar to the following to the respective kernel Makefile:
+To enable UBSAN, configure the kernel with::
-- For a single file (e.g. main.o)::
+ CONFIG_UBSAN=y
- UBSAN_SANITIZE_main.o := y
-
-- For all files in one directory::
-
- UBSAN_SANITIZE := y
-
-To exclude files from being instrumented even if
-``CONFIG_UBSAN_SANITIZE_ALL=y``, use::
+To exclude files from being instrumented use::
UBSAN_SANITIZE_main.o := n
-and::
+and to exclude all targets in one directory use::
UBSAN_SANITIZE := n
+When disabled for all targets, specific files can be enabled using::
+
+ UBSAN_SANITIZE_main.o := y
+
Detection of unaligned accesses controlled through the separate option -
CONFIG_UBSAN_ALIGNMENT. It's off by default on architectures that support
unaligned accesses (CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y). One could
diff --git a/Documentation/devicetree/bindings/.yamllint b/Documentation/devicetree/bindings/.yamllint
index 4abe9f0a1d46..8f9dd18dfe04 100644
--- a/Documentation/devicetree/bindings/.yamllint
+++ b/Documentation/devicetree/bindings/.yamllint
@@ -1,6 +1,11 @@
extends: relaxed
rules:
+ quoted-strings:
+ required: only-when-needed
+ extra-allowed:
+ - '[$^[]'
+ - '^/$'
line-length:
# 80 chars should be enough, but don't fail if a line is longer
max: 110
@@ -25,7 +30,7 @@ rules:
document-start:
present: true
empty-lines:
- max: 3
+ max: 1
max-end: 1
empty-values:
forbid-in-block-mappings: true
diff --git a/Documentation/devicetree/bindings/Makefile b/Documentation/devicetree/bindings/Makefile
index 8b395893bd85..8d6f85f4455d 100644
--- a/Documentation/devicetree/bindings/Makefile
+++ b/Documentation/devicetree/bindings/Makefile
@@ -6,7 +6,7 @@ DT_MK_SCHEMA ?= dt-mk-schema
DT_SCHEMA_LINT = $(shell which yamllint || \
echo "warning: python package 'yamllint' not installed, skipping" >&2)
-DT_SCHEMA_MIN_VERSION = 2022.3
+DT_SCHEMA_MIN_VERSION = 2023.9
PHONY += check_dtschema_version
check_dtschema_version:
@@ -25,20 +25,26 @@ quiet_cmd_extract_ex = DTEX $@
$(obj)/%.example.dts: $(src)/%.yaml check_dtschema_version FORCE
$(call if_changed,extract_ex)
-find_all_cmd = find $(srctree)/$(src) \( -name '*.yaml' ! \
+find_all_cmd = find $(src) \( -name '*.yaml' ! \
-name 'processed-schema*' \)
-find_cmd = $(find_all_cmd) | grep -F -e "$(subst :," -e ",$(DT_SCHEMA_FILES))"
-CHK_DT_DOCS := $(shell $(find_cmd))
+find_cmd = $(find_all_cmd) | \
+ sed 's|^$(srctree)/||' | \
+ grep -F -e "$(subst :," -e ",$(DT_SCHEMA_FILES))" | \
+ sed 's|^|$(srctree)/|'
+CHK_DT_EXAMPLES := $(patsubst $(srctree)/%.yaml,%.example.dtb, \
+ $(shell $(find_cmd) | xargs grep -l '^examples:'))
quiet_cmd_yamllint = LINT $(src)
cmd_yamllint = ($(find_cmd) | \
xargs -n200 -P$$(nproc) \
- $(DT_SCHEMA_LINT) -f parsable -c $(srctree)/$(src)/.yamllint >&2) || true
+ $(DT_SCHEMA_LINT) -f parsable -c $(src)/.yamllint >&2) \
+ && touch $@ || true
-quiet_cmd_chk_bindings = CHKDT $@
+quiet_cmd_chk_bindings = CHKDT $(src)
cmd_chk_bindings = ($(find_cmd) | \
- xargs -n200 -P$$(nproc) $(DT_DOC_CHECKER) -u $(srctree)/$(src)) || true
+ xargs -n200 -P$$(nproc) $(DT_DOC_CHECKER) -u $(src)) \
+ && touch $@ || true
quiet_cmd_mk_schema = SCHEMA $@
cmd_mk_schema = f=$$(mktemp) ; \
@@ -46,30 +52,27 @@ quiet_cmd_mk_schema = SCHEMA $@
$(DT_MK_SCHEMA) -j $(DT_MK_SCHEMA_FLAGS) @$$f > $@ ; \
rm -f $$f
-define rule_chkdt
- $(if $(DT_SCHEMA_LINT),$(call cmd,yamllint),)
- $(call cmd,chk_bindings)
- $(call cmd,mk_schema)
-endef
-
DT_DOCS = $(patsubst $(srctree)/%,%,$(shell $(find_all_cmd)))
override DTC_FLAGS := \
-Wno-avoid_unnecessary_addr_size \
-Wno-graph_child_address \
- -Wno-interrupt_provider \
-Wno-unique_unit_address \
-Wunique_unit_address_if_enabled
-# Disable undocumented compatible checks until warning free
-override DT_CHECKER_FLAGS ?=
+$(obj)/processed-schema.json: $(DT_DOCS) check_dtschema_version FORCE
+ $(call if_changed,mk_schema)
+
+targets += .dt-binding.checked .yamllint.checked
+$(obj)/.yamllint.checked: $(DT_DOCS) $(src)/.yamllint FORCE
+ $(if $(DT_SCHEMA_LINT),$(call if_changed,yamllint),)
-$(obj)/processed-schema.json: $(DT_DOCS) $(src)/.yamllint check_dtschema_version FORCE
- $(call if_changed_rule,chkdt)
+$(obj)/.dt-binding.checked: $(DT_DOCS) FORCE
+ $(call if_changed,chk_bindings)
always-y += processed-schema.json
-always-$(CHECK_DT_BINDING) += $(patsubst $(srctree)/$(src)/%.yaml,%.example.dts, $(CHK_DT_DOCS))
-always-$(CHECK_DT_BINDING) += $(patsubst $(srctree)/$(src)/%.yaml,%.example.dtb, $(CHK_DT_DOCS))
+targets += $(patsubst $(obj)/%,%, $(CHK_DT_EXAMPLES))
+targets += $(patsubst $(obj)/%.dtb,%.dts, $(CHK_DT_EXAMPLES))
# Hack: avoid 'Argument list too long' error for 'make clean'. Remove most of
# build artifacts here before they are processed by scripts/Makefile.clean
@@ -78,3 +81,6 @@ clean-files = $(shell find $(obj) \( -name '*.example.dts' -o \
dt_compatible_check: $(obj)/processed-schema.json
$(Q)$(srctree)/scripts/dtc/dt-extract-compatibles $(srctree) | xargs dt-check-compatible -v -s $<
+
+PHONY += dt_binding_check
+dt_binding_check: $(obj)/.dt-binding.checked $(obj)/.yamllint.checked $(CHK_DT_EXAMPLES)
diff --git a/Documentation/devicetree/bindings/access-controllers/access-controllers.yaml b/Documentation/devicetree/bindings/access-controllers/access-controllers.yaml
new file mode 100644
index 000000000000..99e2865f0e46
--- /dev/null
+++ b/Documentation/devicetree/bindings/access-controllers/access-controllers.yaml
@@ -0,0 +1,84 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/access-controllers/access-controllers.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Generic Domain Access Controllers
+
+maintainers:
+ - Oleksii Moisieiev <oleksii_moisieiev@epam.com>
+
+description: |+
+ Common access controllers properties
+
+ Access controllers are in charge of stating which of the hardware blocks under
+ their responsibility (their domain) can be accesssed by which compartment. A
+ compartment can be a cluster of CPUs (or coprocessors), a range of addresses
+ or a group of hardware blocks. An access controller's domain is the set of
+ resources covered by the access controller.
+
+ This device tree binding can be used to bind devices to their access
+ controller provided by access-controllers property. In this case, the device
+ is a consumer and the access controller is the provider.
+
+ An access controller can be represented by any node in the device tree and
+ can provide one or more configuration parameters, needed to control parameters
+ of the consumer device. A consumer node can refer to the provider by phandle
+ and a set of phandle arguments, specified by '#access-controller-cells'
+ property in the access controller node.
+
+ Access controllers are typically used to set/read the permissions of a
+ hardware block and grant access to it. Any of which depends on the access
+ controller. The capabilities of each access controller are defined by the
+ binding of the access controller device.
+
+ Each node can be a consumer for the several access controllers.
+
+# always select the core schema
+select: true
+
+properties:
+ "#access-controller-cells":
+ description:
+ Number of cells in an access-controllers specifier;
+ Can be any value as specified by device tree binding documentation
+ of a particular provider. The node is an access controller.
+
+ access-controller-names:
+ $ref: /schemas/types.yaml#/definitions/string-array
+ description:
+ A list of access-controllers names, sorted in the same order as
+ access-controllers entries. Consumer drivers will use
+ access-controller-names to match with existing access-controllers entries.
+
+ access-controllers:
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ description:
+ A list of access controller specifiers, as defined by the
+ bindings of the access-controllers provider.
+
+additionalProperties: true
+
+examples:
+ - |
+ clock_controller: access-controllers@50000 {
+ reg = <0x50000 0x400>;
+ #access-controller-cells = <2>;
+ };
+
+ bus_controller: bus@60000 {
+ reg = <0x60000 0x10000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+ #access-controller-cells = <3>;
+
+ uart4: serial@60100 {
+ reg = <0x60100 0x400>;
+ clocks = <&clk_serial>;
+ access-controllers = <&clock_controller 1 2>,
+ <&bus_controller 1 3 5>;
+ access-controller-names = "clock", "bus";
+ };
+ };
diff --git a/Documentation/devicetree/bindings/arc/archs-pct.txt b/Documentation/devicetree/bindings/arc/archs-pct.txt
deleted file mode 100644
index e4b9dcee6d41..000000000000
--- a/Documentation/devicetree/bindings/arc/archs-pct.txt
+++ /dev/null
@@ -1,17 +0,0 @@
-* ARC HS Performance Counters
-
-The ARC HS can be configured with a pipeline performance monitor for counting
-CPU and cache events like cache misses and hits. Like conventional PCT there
-are 100+ hardware conditions dynamically mapped to up to 32 counters.
-It also supports overflow interrupts.
-
-Required properties:
-
-- compatible : should contain
- "snps,archs-pct"
-
-Example:
-
-pmu {
- compatible = "snps,archs-pct";
-};
diff --git a/Documentation/devicetree/bindings/arc/snps,archs-pct.yaml b/Documentation/devicetree/bindings/arc/snps,archs-pct.yaml
new file mode 100644
index 000000000000..532f7584f59f
--- /dev/null
+++ b/Documentation/devicetree/bindings/arc/snps,archs-pct.yaml
@@ -0,0 +1,33 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arc/snps,archs-pct.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ARC HS Performance Counters
+
+maintainers:
+ - Aryabhatta Dey <aryabhattadey35@gmail.com>
+
+description:
+ The ARC HS can be configured with a pipeline performance monitor for counting
+ CPU and cache events like cache misses and hits. Like conventional PCT there
+ are 100+ hardware conditions dynamically mapped to up to 32 counters.
+ It also supports overflow interrupts.
+
+properties:
+ compatible:
+ const: snps,archs-pct
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+
+additionalProperties: false
diff --git a/Documentation/devicetree/bindings/arm/airoha,en7581-chip-scu.yaml b/Documentation/devicetree/bindings/arm/airoha,en7581-chip-scu.yaml
new file mode 100644
index 000000000000..67c449d804c2
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/airoha,en7581-chip-scu.yaml
@@ -0,0 +1,42 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/airoha,en7581-chip-scu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Airoha Chip SCU Controller for EN7581 SoC
+
+maintainers:
+ - Lorenzo Bianconi <lorenzo@kernel.org>
+
+description:
+ The airoha chip-scu block provides a configuration interface for clock,
+ io-muxing and other functionalities used by multiple controllers (e.g. clock,
+ pinctrl, ecc) on EN7581 SoC.
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - airoha,en7581-chip-scu
+ - const: syscon
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ syscon@1fa20000 {
+ compatible = "airoha,en7581-chip-scu", "syscon";
+ reg = <0x0 0x1fa20000 0x0 0x388>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/arm/airoha.yaml b/Documentation/devicetree/bindings/arm/airoha.yaml
index 3292c669ee11..7c38c08dbf3f 100644
--- a/Documentation/devicetree/bindings/arm/airoha.yaml
+++ b/Documentation/devicetree/bindings/arm/airoha.yaml
@@ -22,6 +22,10 @@ properties:
- enum:
- airoha,en7523-evb
- const: airoha,en7523
+ - items:
+ - enum:
+ - airoha,en7581-evb
+ - const: airoha,en7581
additionalProperties: true
diff --git a/Documentation/devicetree/bindings/arm/altera.yaml b/Documentation/devicetree/bindings/arm/altera.yaml
index 8c7575455422..db61537b7115 100644
--- a/Documentation/devicetree/bindings/arm/altera.yaml
+++ b/Documentation/devicetree/bindings/arm/altera.yaml
@@ -31,7 +31,9 @@ properties:
- description: Mercury+ AA1 boards
items:
- enum:
- - enclustra,mercury-pe1
+ - enclustra,mercury-aa1-pe1
+ - enclustra,mercury-aa1-pe3
+ - enclustra,mercury-aa1-st1
- google,chameleon-v3
- const: enclustra,mercury-aa1
- const: altr,socfpga-arria10
@@ -47,10 +49,31 @@ properties:
- novtech,chameleon96
- samtec,vining
- terasic,de0-atlas
+ - terasic,de10-nano
- terasic,socfpga-cyclone5-sockit
- const: altr,socfpga-cyclone5
- const: altr,socfpga
+ - description: Mercury SA1 boards
+ items:
+ - enum:
+ - enclustra,mercury-sa1-pe1
+ - enclustra,mercury-sa1-pe3
+ - enclustra,mercury-sa1-st1
+ - const: enclustra,mercury-sa1
+ - const: altr,socfpga-cyclone5
+ - const: altr,socfpga
+
+ - description: Mercury+ SA2 boards
+ items:
+ - enum:
+ - enclustra,mercury-sa2-pe1
+ - enclustra,mercury-sa2-pe3
+ - enclustra,mercury-sa2-st1
+ - const: enclustra,mercury-sa2
+ - const: altr,socfpga-cyclone5
+ - const: altr,socfpga
+
- description: Stratix 10 boards
items:
- enum:
diff --git a/Documentation/devicetree/bindings/arm/altera/socfpga-clk-manager.yaml b/Documentation/devicetree/bindings/arm/altera/socfpga-clk-manager.yaml
index 572381306681..4683bd1293fa 100644
--- a/Documentation/devicetree/bindings/arm/altera/socfpga-clk-manager.yaml
+++ b/Documentation/devicetree/bindings/arm/altera/socfpga-clk-manager.yaml
@@ -9,20 +9,120 @@ title: Altera SOCFPGA Clock Manager
maintainers:
- Dinh Nguyen <dinguyen@kernel.org>
-description: test
+description:
+ This binding describes the Altera SOCFGPA Clock Manager and its associated
+ tree of clocks, pll's, and clock gates for the Cyclone5, Arria5 and Arria10
+ chip families.
properties:
compatible:
items:
- const: altr,clk-mgr
+
reg:
maxItems: 1
+ clocks:
+ type: object
+ additionalProperties: false
+
+ properties:
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+ patternProperties:
+ '^osc[0-9]$':
+ type: object
+
+ '^[a-z0-9,_]+(clk|pll|clk_gate|clk_divided)(@[a-f0-9]+)?$':
+ type: object
+ $ref: '#/$defs/clock-props'
+ unevaluatedProperties: false
+
+ properties:
+ compatible:
+ enum:
+ - altr,socfpga-pll-clock
+ - altr,socfpga-perip-clk
+ - altr,socfpga-gate-clk
+ - altr,socfpga-a10-pll-clock
+ - altr,socfpga-a10-perip-clk
+ - altr,socfpga-a10-gate-clk
+ - fixed-clock
+
+ clocks:
+ description: one or more phandles to input clock
+ minItems: 1
+ maxItems: 5
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+ patternProperties:
+ '^[a-z0-9,_]+(clk|pll)(@[a-f0-9]+)?$':
+ type: object
+ $ref: '#/$defs/clock-props'
+ unevaluatedProperties: false
+
+ properties:
+ compatible:
+ enum:
+ - altr,socfpga-perip-clk
+ - altr,socfpga-gate-clk
+ - altr,socfpga-a10-perip-clk
+ - altr,socfpga-a10-gate-clk
+
+ clocks:
+ description: one or more phandles to input clock
+ minItems: 1
+ maxItems: 4
+
+ required:
+ - compatible
+ - clocks
+ - '#clock-cells'
+
+ required:
+ - compatible
+ - '#clock-cells'
+
required:
- compatible
+ - reg
additionalProperties: false
+$defs:
+ clock-props:
+ properties:
+ reg:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 0
+
+ clk-gate:
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ items:
+ - description: gating register offset
+ - description: bit index
+
+ div-reg:
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ items:
+ - description: divider register offset
+ - description: bit shift
+ - description: bit width
+
+ fixed-divider:
+ $ref: /schemas/types.yaml#/definitions/uint32
+
examples:
- |
clkmgr@ffd04000 {
diff --git a/Documentation/devicetree/bindings/arm/altera/socfpga-sdram-controller.txt b/Documentation/devicetree/bindings/arm/altera/socfpga-sdram-controller.txt
deleted file mode 100644
index 77ca635765e1..000000000000
--- a/Documentation/devicetree/bindings/arm/altera/socfpga-sdram-controller.txt
+++ /dev/null
@@ -1,12 +0,0 @@
-Altera SOCFPGA SDRAM Controller
-
-Required properties:
-- compatible : Should contain "altr,sdr-ctl" and "syscon".
- syscon is required by the Altera SOCFPGA SDRAM EDAC.
-- reg : Should contain 1 register range (address and length)
-
-Example:
- sdr: sdr@ffc25000 {
- compatible = "altr,sdr-ctl", "syscon";
- reg = <0xffc25000 0x1000>;
- };
diff --git a/Documentation/devicetree/bindings/arm/altera/socfpga-sdram-edac.txt b/Documentation/devicetree/bindings/arm/altera/socfpga-sdram-edac.txt
deleted file mode 100644
index f5ad0ff69fae..000000000000
--- a/Documentation/devicetree/bindings/arm/altera/socfpga-sdram-edac.txt
+++ /dev/null
@@ -1,15 +0,0 @@
-Altera SOCFPGA SDRAM Error Detection & Correction [EDAC]
-The EDAC accesses a range of registers in the SDRAM controller.
-
-Required properties:
-- compatible : should contain "altr,sdram-edac" or "altr,sdram-edac-a10"
-- altr,sdr-syscon : phandle of the sdr module
-- interrupts : Should contain the SDRAM ECC IRQ in the
- appropriate format for the IRQ controller.
-
-Example:
- sdramedac {
- compatible = "altr,sdram-edac";
- altr,sdr-syscon = <&sdr>;
- interrupts = <0 39 4>;
- };
diff --git a/Documentation/devicetree/bindings/arm/altera/socfpga-system.txt b/Documentation/devicetree/bindings/arm/altera/socfpga-system.txt
deleted file mode 100644
index 82edbaaa3f85..000000000000
--- a/Documentation/devicetree/bindings/arm/altera/socfpga-system.txt
+++ /dev/null
@@ -1,25 +0,0 @@
-Altera SOCFPGA System Manager
-
-Required properties:
-- compatible : "altr,sys-mgr"
-- reg : Should contain 1 register ranges(address and length)
-- cpu1-start-addr : CPU1 start address in hex.
-
-Example:
- sysmgr@ffd08000 {
- compatible = "altr,sys-mgr";
- reg = <0xffd08000 0x1000>;
- cpu1-start-addr = <0xffd080c4>;
- };
-
-ARM64 - Stratix10
-Required properties:
-- compatible : "altr,sys-mgr-s10"
-- reg : Should contain 1 register range(address and length)
- for system manager register.
-
-Example:
- sysmgr@ffd12000 {
- compatible = "altr,sys-mgr-s10";
- reg = <0xffd12000 0x228>;
- };
diff --git a/Documentation/devicetree/bindings/arm/amd,pensando.yaml b/Documentation/devicetree/bindings/arm/amd,pensando.yaml
new file mode 100644
index 000000000000..e5c2591834a8
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/amd,pensando.yaml
@@ -0,0 +1,26 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/amd,pensando.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: AMD Pensando SoC Platforms
+
+maintainers:
+ - Brad Larson <blarson@amd.com>
+
+properties:
+ $nodename:
+ const: "/"
+ compatible:
+ oneOf:
+
+ - description: Boards with Pensando Elba SoC
+ items:
+ - enum:
+ - amd,pensando-elba-ortano
+ - const: amd,pensando-elba
+
+additionalProperties: true
+
+...
diff --git a/Documentation/devicetree/bindings/arm/amd,seattle.yaml b/Documentation/devicetree/bindings/arm/amd,seattle.yaml
new file mode 100644
index 000000000000..7a3fc05b19eb
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/amd,seattle.yaml
@@ -0,0 +1,24 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/amd,seattle.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: AMD Seattle SoC Platforms
+
+maintainers:
+ - Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
+ - Tom Lendacky <thomas.lendacky@amd.com>
+
+properties:
+ $nodename:
+ const: "/"
+ compatible:
+ oneOf:
+ - description: Boards with AMD Seattle SoC
+ items:
+ - const: amd,seattle-overdrive
+ - const: amd,seattle
+
+additionalProperties: true
+...
diff --git a/Documentation/devicetree/bindings/arm/amlogic.yaml b/Documentation/devicetree/bindings/arm/amlogic.yaml
index 274ee0890312..08d9963fe925 100644
--- a/Documentation/devicetree/bindings/arm/amlogic.yaml
+++ b/Documentation/devicetree/bindings/arm/amlogic.yaml
@@ -4,22 +4,14 @@
$id: http://devicetree.org/schemas/arm/amlogic.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Amlogic MesonX
+title: Amlogic SoC based Platforms
maintainers:
+ - Neil Armstrong <neil.armstrong@linaro.org>
+ - Martin Blumenstingl <martin.blumenstingl@googlemail.com>
+ - Jerome Brunet <jbrunet@baylibre.com>
- Kevin Hilman <khilman@baylibre.com>
-description: |+
- Work in progress statement:
-
- Device tree files and bindings applying to Amlogic SoCs and boards are
- considered "unstable". Any Amlogic device tree binding may change at
- any time. Be sure to use a device tree binary and a kernel image
- generated from the same source tree.
-
- Please refer to Documentation/devicetree/bindings/ABI.rst for a definition of a
- stable binding/ABI.
-
properties:
$nodename:
const: '/'
@@ -35,6 +27,7 @@ properties:
items:
- enum:
- minix,neo-x8
+ - tcu,fernsehfee3
- const: amlogic,meson8
- description: Boards with the Amlogic Meson8m2 SoC
@@ -81,6 +74,13 @@ properties:
- const: amlogic,s805x
- const: amlogic,meson-gxl
+ - description: Boards with the Amlogic Meson GXL S805Y SoC
+ items:
+ - enum:
+ - xiaomi,aquaman
+ - const: amlogic,s805y
+ - const: amlogic,meson-gxl
+
- description: Boards with the Amlogic Meson GXL S905W SoC
items:
- enum:
@@ -99,6 +99,7 @@ properties:
- libretech,aml-s905x-cc
- libretech,aml-s905x-cc-v2
- nexbox,a95x
+ - osmc,vero4k
- const: amlogic,s905x
- const: amlogic,meson-gxl
@@ -115,6 +116,13 @@ properties:
- const: amlogic,s905d
- const: amlogic,meson-gxl
+ - description: Boards with the Amlogic Meson GXLX S905L SoC
+ items:
+ - enum:
+ - amlogic,p271
+ - const: amlogic,s905l
+ - const: amlogic,meson-gxlx
+
- description: Boards with the Amlogic Meson GXM S912 SoC
items:
- enum:
@@ -126,7 +134,9 @@ properties:
- libretech,aml-s912-pc
- minix,neo-u9h
- nexbox,a1
+ - oranth,tx9-pro
- tronsmart,vega-s96
+ - ugoos,am3
- videostrong,gxm-kiii-pro
- wetek,core2
- const: amlogic,s912
@@ -146,6 +156,7 @@ properties:
- enum:
- amediatech,x96-max
- amlogic,u200
+ - freebox,fbx8am
- radxa,zero
- seirobotics,sei510
- const: amlogic,g12a
@@ -155,6 +166,7 @@ properties:
- enum:
- bananapi,bpi-m2s
- khadas,vim3
+ - libretech,aml-a311d-cc
- radxa,zero2
- const: amlogic,a311d
- const: amlogic,g12b
@@ -163,6 +175,7 @@ properties:
items:
- enum:
- bananapi,bpi-cm4io
+ - mntre,reform2-cm4
- const: bananapi,bpi-cm4
- const: amlogic,a311d
- const: amlogic,g12b
@@ -174,6 +187,8 @@ properties:
- azw,gtking
- azw,gtking-pro
- bananapi,bpi-m2s
+ - dream,dreambox-one
+ - dream,dreambox-two
- hardkernel,odroid-go-ultra
- hardkernel,odroid-n2
- hardkernel,odroid-n2l
@@ -196,6 +211,7 @@ properties:
- hardkernel,odroid-hc4
- haochuangyi,h96-max
- khadas,vim3l
+ - libretech,aml-s905d3-cc
- seirobotics,sei610
- const: amlogic,sm1
@@ -203,14 +219,60 @@ properties:
items:
- enum:
- amlogic,ad401
+ - amlogic,ad402
- const: amlogic,a1
+ - description: Boards with the Amlogic A4 A113L2 SoC
+ items:
+ - enum:
+ - amlogic,ba400
+ - const: amlogic,a4
+
+ - description: Boards with the Amlogic A5 A113X2 SoC
+ items:
+ - enum:
+ - amlogic,av400
+ - const: amlogic,a5
+
+ - description: Boards with the Amlogic C3 C302X/C308L SoC
+ items:
+ - enum:
+ - amlogic,aw409
+ - amlogic,aw419
+ - const: amlogic,c3
+
- description: Boards with the Amlogic Meson S4 S805X2 SoC
items:
- enum:
- amlogic,aq222
- const: amlogic,s4
+ - description: Boards with the Amlogic S6 S905X5 SoC
+ items:
+ - enum:
+ - amlogic,bl209
+ - const: amlogic,s6
+
+ - description: Boards with the Amlogic S7 S805X3 SoC
+ items:
+ - enum:
+ - amlogic,bp201
+ - const: amlogic,s7
+
+ - description: Boards with the Amlogic S7D S905X5M SoC
+ items:
+ - enum:
+ - amlogic,bm202
+ - const: amlogic,s7d
+
+ - description: Boards with the Amlogic T7 A311D2 SoC
+ items:
+ - enum:
+ - amlogic,an400
+ - khadas,vim4
+ - const: amlogic,a311d2
+ - const: amlogic,t7
+
additionalProperties: true
...
diff --git a/Documentation/devicetree/bindings/arm/amlogic/amlogic,meson-gx-ao-secure.yaml b/Documentation/devicetree/bindings/arm/amlogic/amlogic,meson-gx-ao-secure.yaml
index 7dff32f373cb..fa7c403c874a 100644
--- a/Documentation/devicetree/bindings/arm/amlogic/amlogic,meson-gx-ao-secure.yaml
+++ b/Documentation/devicetree/bindings/arm/amlogic/amlogic,meson-gx-ao-secure.yaml
@@ -25,10 +25,21 @@ select:
properties:
compatible:
- items:
- - const: amlogic,meson-gx-ao-secure
- - const: syscon
-
+ oneOf:
+ - items:
+ - const: amlogic,meson-gx-ao-secure
+ - const: syscon
+ - items:
+ - enum:
+ - amlogic,a4-ao-secure
+ - amlogic,c3-ao-secure
+ - amlogic,s4-ao-secure
+ - amlogic,s6-ao-secure
+ - amlogic,s7-ao-secure
+ - amlogic,s7d-ao-secure
+ - amlogic,t7-ao-secure
+ - const: amlogic,meson-gx-ao-secure
+ - const: syscon
reg:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/arm/amlogic/analog-top.txt b/Documentation/devicetree/bindings/arm/amlogic/analog-top.txt
deleted file mode 100644
index 101dc21014ec..000000000000
--- a/Documentation/devicetree/bindings/arm/amlogic/analog-top.txt
+++ /dev/null
@@ -1,20 +0,0 @@
-Amlogic Meson8 and Meson8b "analog top" registers:
---------------------------------------------------
-
-The analog top registers contain information about the so-called
-"metal revision" (which encodes the "minor version") of the SoC.
-
-Required properties:
-- reg: the register range of the analog top registers
-- compatible: depending on the SoC this should be one of:
- - "amlogic,meson8-analog-top"
- - "amlogic,meson8b-analog-top"
- along with "syscon"
-
-
-Example:
-
- analog_top: analog-top@81a8 {
- compatible = "amlogic,meson8-analog-top", "syscon";
- reg = <0x81a8 0x14>;
- };
diff --git a/Documentation/devicetree/bindings/arm/amlogic/assist.txt b/Documentation/devicetree/bindings/arm/amlogic/assist.txt
deleted file mode 100644
index 7656812b67b9..000000000000
--- a/Documentation/devicetree/bindings/arm/amlogic/assist.txt
+++ /dev/null
@@ -1,17 +0,0 @@
-Amlogic Meson6/Meson8/Meson8b assist registers:
------------------------------------------------
-
-The assist registers contain basic information about the SoC,
-for example the encoded SoC part number.
-
-Required properties:
-- reg: the register range of the assist registers
-- compatible: should be "amlogic,meson-mx-assist" along with "syscon"
-
-
-Example:
-
- assist: assist@7c00 {
- compatible = "amlogic,meson-mx-assist", "syscon";
- reg = <0x7c00 0x200>;
- };
diff --git a/Documentation/devicetree/bindings/arm/amlogic/bootrom.txt b/Documentation/devicetree/bindings/arm/amlogic/bootrom.txt
deleted file mode 100644
index 407e27f230ab..000000000000
--- a/Documentation/devicetree/bindings/arm/amlogic/bootrom.txt
+++ /dev/null
@@ -1,17 +0,0 @@
-Amlogic Meson6/Meson8/Meson8b bootrom:
---------------------------------------
-
-The bootrom register area can be used to access SoC specific
-information, such as the "misc version".
-
-Required properties:
-- reg: the register range of the bootrom registers
-- compatible: should be "amlogic,meson-mx-bootrom" along with "syscon"
-
-
-Example:
-
- bootrom: bootrom@d9040000 {
- compatible = "amlogic,meson-mx-bootrom", "syscon";
- reg = <0xd9040000 0x10000>;
- };
diff --git a/Documentation/devicetree/bindings/arm/amlogic/pmu.txt b/Documentation/devicetree/bindings/arm/amlogic/pmu.txt
deleted file mode 100644
index 72f8d08198b6..000000000000
--- a/Documentation/devicetree/bindings/arm/amlogic/pmu.txt
+++ /dev/null
@@ -1,18 +0,0 @@
-Amlogic Meson8 and Meson8b power-management-unit:
--------------------------------------------------
-
-The pmu is used to turn off and on different power domains of the SoCs
-This includes the power to the CPU cores.
-
-Required node properties:
-- compatible value : depending on the SoC this should be one of:
- "amlogic,meson8-pmu"
- "amlogic,meson8b-pmu"
-- reg : physical base address and the size of the registers window
-
-Example:
-
- pmu@c81000e4 {
- compatible = "amlogic,meson8b-pmu", "syscon";
- reg = <0xc81000e0 0x18>;
- };
diff --git a/Documentation/devicetree/bindings/arm/apm.yaml b/Documentation/devicetree/bindings/arm/apm.yaml
new file mode 100644
index 000000000000..ea0d362cea3a
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/apm.yaml
@@ -0,0 +1,28 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/apm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: APM X-Gene SoC Platforms
+
+maintainers:
+ - Khuong Dinh <khuong@os.amperecomputing.com>
+
+properties:
+ $nodename:
+ const: "/"
+ compatible:
+ oneOf:
+ - description: Boards with X-Gene1 Soc
+ items:
+ - const: apm,mustang
+ - const: apm,xgene-storm
+
+ - description: Boards with X-Gene2 SoC
+ items:
+ - const: apm,merlin
+ - const: apm,xgene-shadowcat
+
+additionalProperties: true
+...
diff --git a/Documentation/devicetree/bindings/arm/apm/scu.txt b/Documentation/devicetree/bindings/arm/apm/scu.txt
deleted file mode 100644
index b45be06625fd..000000000000
--- a/Documentation/devicetree/bindings/arm/apm/scu.txt
+++ /dev/null
@@ -1,17 +0,0 @@
-APM X-GENE SoC series SCU Registers
-
-This system clock unit contain various register that control block resets,
-clock enable/disables, clock divisors and other deepsleep registers.
-
-Properties:
- - compatible : should contain two values. First value must be:
- - "apm,xgene-scu"
- second value must be always "syscon".
-
- - reg : offset and length of the register set.
-
-Example :
- scu: system-clk-controller@17000000 {
- compatible = "apm,xgene-scu","syscon";
- reg = <0x0 0x17000000 0x0 0x400>;
- };
diff --git a/Documentation/devicetree/bindings/arm/apple.yaml b/Documentation/devicetree/bindings/arm/apple.yaml
index 883fd67e3752..5c2629ec3d4c 100644
--- a/Documentation/devicetree/bindings/arm/apple.yaml
+++ b/Documentation/devicetree/bindings/arm/apple.yaml
@@ -12,7 +12,77 @@ maintainers:
description: |
ARM platforms using SoCs designed by Apple Inc., branded "Apple Silicon".
- This currently includes devices based on the "M1" SoC:
+ This currently includes devices based on the "A7" SoC:
+
+ - iPhone 5s
+ - iPad Air (1)
+ - iPad mini 2
+ - iPad mini 3
+
+ Devices based on the "A8" SoC:
+
+ - iPhone 6
+ - iPhone 6 Plus
+ - iPad mini 4
+ - iPod touch 6
+ - Apple TV HD
+
+ Device based on the "A8X" SoC:
+
+ - iPad Air 2
+
+ Devices based on the "A9" SoC:
+
+ - iPhone 6s
+ - iPhone 6s Plus
+ - iPhone SE (2016)
+ - iPad 5
+
+ Devices based on the "A9X" SoC:
+
+ - iPad Pro (9.7-inch)
+ - iPad Pro (12.9-inch)
+
+ Devices based on the "A10" SoC:
+
+ - iPhone 7
+ - iPhone 7 Plus
+ - iPod touch 7
+ - iPad 6
+ - iPad 7
+
+ Devices based on the "A10X" SoC:
+
+ - Apple TV 4K (1st generation)
+ - iPad Pro (2nd Generation) (10.5 Inch)
+ - iPad Pro (2nd Generation) (12.9 Inch)
+
+ Devices based on the "T2" SoC:
+
+ - Apple T2 MacBookPro15,2 (j132)
+ - Apple T2 iMacPro1,1 (j137)
+ - Apple T2 MacBookAir8,2 (j140a)
+ - Apple T2 MacBookAir8,1 (j140k)
+ - Apple T2 MacBookPro16,1 (j152f)
+ - Apple T2 MacPro7,1 (j160)
+ - Apple T2 Macmini8,1 (j174)
+ - Apple T2 iMac20,1 (j185)
+ - Apple T2 iMac20,2 (j185f)
+ - Apple T2 MacBookPro15,4 (j213)
+ - Apple T2 MacBookPro16,2 (j214k)
+ - Apple T2 MacBookPro16,4 (j215)
+ - Apple T2 MacBookPro16,3 (j223)
+ - Apple T2 MacBookAir9,1 (j230k)
+ - Apple T2 MacBookPro15,1 (j680)
+ - Apple T2 MacBookPro15,3 (j780)
+
+ Devices based on the "A11" SoC:
+
+ - iPhone 8
+ - iPhone 8 Plus
+ - iPhone X
+
+ Devices based on the "M1" SoC:
- Mac mini (M1, 2020)
- MacBook Pro (13-inch, M1, 2020)
@@ -22,10 +92,11 @@ description: |
Devices based on the "M2" SoC:
- MacBook Air (M2, 2022)
+ - MacBook Air (15-inch, M2, 2023)
- MacBook Pro (13-inch, M2, 2022)
- Mac mini (M2, 2023)
- And devices based on the "M1 Pro", "M1 Max" and "M1 Ultra" SoCs:
+ Devices based on the "M1 Pro", "M1 Max" and "M1 Ultra" SoCs:
- MacBook Pro (14-inch, M1 Pro, 2021)
- MacBook Pro (14-inch, M1 Max, 2021)
@@ -34,6 +105,17 @@ description: |
- Mac Studio (M1 Max, 2022)
- Mac Studio (M1 Ultra, 2022)
+ Devices based on the "M2 Pro", "M2 Max" and "M2 Ultra" SoCs:
+
+ - MacBook Pro (14-inch, M2 Pro, 2023)
+ - MacBook Pro (14-inch, M2 Max, 2023)
+ - MacBook Pro (16-inch, M2 Pro, 2023)
+ - MacBook Pro (16-inch, M2 Max, 2023)
+ - Mac mini (M2 Pro, 2023)
+ - Mac Studio (M2 Max, 2023)
+ - Mac Studio (M2 Ultra, 2023)
+ - Mac Pro (M2 Ultra, 2023)
+
The compatible property should follow this format:
compatible = "apple,<targettype>", "apple,<socid>", "apple,arm-platform";
@@ -65,6 +147,135 @@ properties:
const: "/"
compatible:
oneOf:
+ - description: Apple A7 SoC based platforms
+ items:
+ - enum:
+ - apple,j71 # iPad Air (Wi-Fi)
+ - apple,j72 # iPad Air (Cellular)
+ - apple,j73 # iPad Air (Cellular, China)
+ - apple,j85 # iPad mini 2 (Wi-Fi)
+ - apple,j85m # iPad mini 3 (Wi-Fi)
+ - apple,j86 # iPad mini 2 (Cellular)
+ - apple,j86m # iPad mini 3 (Cellular)
+ - apple,j87 # iPad mini 2 (Cellular, China)
+ - apple,j87m # iPad mini 3 (Cellular, China)
+ - apple,n51 # iPhone 5s (GSM)
+ - apple,n53 # iPhone 5s (LTE)
+ - const: apple,s5l8960x
+ - const: apple,arm-platform
+
+ - description: Apple A8 SoC based platforms
+ items:
+ - enum:
+ - apple,j42d # Apple TV HD
+ - apple,j96 # iPad mini 4 (Wi-Fi)
+ - apple,j97 # iPad mini 4 (Cellular)
+ - apple,n56 # iPhone 6 Plus
+ - apple,n61 # iPhone 6
+ - apple,n102 # iPod touch 6
+ - const: apple,t7000
+ - const: apple,arm-platform
+
+ - description: Apple A8X SoC based platforms
+ items:
+ - enum:
+ - apple,j81 # iPad Air 2 (Wi-Fi)
+ - apple,j82 # iPad Air 2 (Cellular)
+ - const: apple,t7001
+ - const: apple,arm-platform
+
+ - description: Apple Samsung A9 SoC based platforms
+ items:
+ - enum:
+ - apple,j71s # iPad 5 (Wi-Fi) (S8000)
+ - apple,j72s # iPad 5 (Cellular) (S8000)
+ - apple,n66 # iPhone 6s Plus (S8000)
+ - apple,n69u # iPhone SE (S8000)
+ - apple,n71 # iPhone 6S (S8000)
+ - const: apple,s8000
+ - const: apple,arm-platform
+
+ - description: Apple TSMC A9 SoC based platforms
+ items:
+ - enum:
+ - apple,j71t # iPad 5 (Wi-Fi) (S8003)
+ - apple,j72t # iPad 5 (Cellular) (S8003)
+ - apple,n66m # iPhone 6s Plus (S8003)
+ - apple,n69 # iPhone SE (S8003)
+ - apple,n71m # iPhone 6S (S8003)
+ - const: apple,s8003
+ - const: apple,arm-platform
+
+ - description: Apple A9X SoC based platforms
+ items:
+ - enum:
+ - apple,j127 # iPad Pro (9.7-inch) (Wi-Fi)
+ - apple,j128 # iPad Pro (9.7-inch) (Cellular)
+ - apple,j98a # iPad Pro (12.9-inch) (Wi-Fi)
+ - apple,j99a # iPad Pro (12.9-inch) (Cellular)
+ - const: apple,s8001
+ - const: apple,arm-platform
+
+ - description: Apple A10 SoC based platforms
+ items:
+ - enum:
+ - apple,d10 # iPhone 7 (Qualcomm)
+ - apple,d11 # iPhone 7 (Intel)
+ - apple,d101 # iPhone 7 Plus (Qualcomm)
+ - apple,d111 # iPhone 7 Plus (Intel)
+ - apple,j71b # iPad 6 (Wi-Fi)
+ - apple,j72b # iPad 6 (Cellular)
+ - apple,j171 # iPad 7 (Wi-Fi)
+ - apple,j172 # iPad 7 (Cellular)
+ - apple,n112 # iPod touch 7
+ - const: apple,t8010
+ - const: apple,arm-platform
+
+ - description: Apple A10X SoC based platforms
+ items:
+ - enum:
+ - apple,j105a # Apple TV 4K (1st Generation)
+ - apple,j120 # iPad Pro 2 (12.9-inch) (Wi-Fi)
+ - apple,j121 # iPad Pro 2 (12.9-inch) (Cellular)
+ - apple,j207 # iPad Pro 2 (10.5-inch) (Wi-Fi)
+ - apple,j208 # iPad Pro 2 (10.5-inch) (Cellular)
+ - const: apple,t8011
+ - const: apple,arm-platform
+
+ - description: Apple T2 SoC based platforms
+ items:
+ - enum:
+ - apple,j132 # Apple T2 MacBookPro15,2 (j132)
+ - apple,j137 # Apple T2 iMacPro1,1 (j137)
+ - apple,j140a # Apple T2 MacBookAir8,2 (j140a)
+ - apple,j140k # Apple T2 MacBookAir8,1 (j140k)
+ - apple,j152f # Apple T2 MacBookPro16,1 (j152f)
+ - apple,j160 # Apple T2 MacPro7,1 (j160)
+ - apple,j174 # Apple T2 Macmini8,1 (j174)
+ - apple,j185 # Apple T2 iMac20,1 (j185)
+ - apple,j185f # Apple T2 iMac20,2 (j185f)
+ - apple,j213 # Apple T2 MacBookPro15,4 (j213)
+ - apple,j214k # Apple T2 MacBookPro16,2 (j214k)
+ - apple,j215 # Apple T2 MacBookPro16,4 (j215)
+ - apple,j223 # Apple T2 MacBookPro16,3 (j223)
+ - apple,j230k # Apple T2 MacBookAir9,1 (j230k)
+ - apple,j680 # Apple T2 MacBookPro15,1 (j680)
+ - apple,j780 # Apple T2 MacBookPro15,3 (j780)
+ - const: apple,t8012
+ - const: apple,arm-platform
+
+ - description: Apple A11 SoC based platforms
+ items:
+ - enum:
+ - apple,d20 # iPhone 8 (Global)
+ - apple,d21 # iPhone 8 Plus (Global)
+ - apple,d22 # iPhone X (Global)
+ - apple,d201 # iPhone 8 (GSM)
+ - apple,d211 # iPhone 8 Plus (GSM)
+ - apple,d221 # iPhone X (GSM)
+ - const: apple,t8015
+ - const: apple,arm-platform
+
- description: Apple M1 SoC based platforms
items:
- enum:
@@ -80,6 +291,7 @@ properties:
items:
- enum:
- apple,j413 # MacBook Air (M2, 2022)
+ - apple,j415 # MacBook Air (15-inch, M2, 2023)
- apple,j473 # Mac mini (M2, 2023)
- apple,j493 # MacBook Pro (13-inch, M2, 2022)
- const: apple,t8112
@@ -109,6 +321,32 @@ properties:
- const: apple,t6002
- const: apple,arm-platform
+ - description: Apple M2 Pro SoC based platforms
+ items:
+ - enum:
+ - apple,j414s # MacBook Pro (14-inch, M2 Pro, 2023)
+ - apple,j416s # MacBook Pro (16-inch, M2 Pro, 2023)
+ - apple,j474s # Mac mini (M2 Pro, 2023)
+ - const: apple,t6020
+ - const: apple,arm-platform
+
+ - description: Apple M2 Max SoC based platforms
+ items:
+ - enum:
+ - apple,j414c # MacBook Pro (14-inch, M2 Max, 2023)
+ - apple,j416c # MacBook Pro (16-inch, M2 Max, 2023)
+ - apple,j475c # Mac Studio (M2 Max, 2023)
+ - const: apple,t6021
+ - const: apple,arm-platform
+
+ - description: Apple M2 Ultra SoC based platforms
+ items:
+ - enum:
+ - apple,j180d # Mac Pro (M2 Ultra, 2023)
+ - apple,j475d # Mac Studio (M2 Ultra, 2023)
+ - const: apple,t6022
+ - const: apple,arm-platform
+
additionalProperties: true
...
diff --git a/Documentation/devicetree/bindings/arm/apple/apple,pmgr.yaml b/Documentation/devicetree/bindings/arm/apple/apple,pmgr.yaml
index 673277a7a224..b88f41a225a3 100644
--- a/Documentation/devicetree/bindings/arm/apple/apple,pmgr.yaml
+++ b/Documentation/devicetree/bindings/arm/apple/apple,pmgr.yaml
@@ -20,14 +20,26 @@ properties:
pattern: "^power-management@[0-9a-f]+$"
compatible:
- items:
- - enum:
- - apple,t8103-pmgr
- - apple,t8112-pmgr
- - apple,t6000-pmgr
- - const: apple,pmgr
- - const: syscon
- - const: simple-mfd
+ oneOf:
+ - items:
+ - enum:
+ # Do not add additional SoC to this list.
+ - apple,s5l8960x-pmgr
+ - apple,t7000-pmgr
+ - apple,s8000-pmgr
+ - apple,t8010-pmgr
+ - apple,t8015-pmgr
+ - apple,t8103-pmgr
+ - apple,t8112-pmgr
+ - apple,t6000-pmgr
+ - const: apple,pmgr
+ - const: syscon
+ - const: simple-mfd
+ - items:
+ - const: apple,t6020-pmgr
+ - const: apple,t8103-pmgr
+ - const: syscon
+ - const: simple-mfd
reg:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/arm/arm,coresight-cti.yaml b/Documentation/devicetree/bindings/arm/arm,coresight-cti.yaml
index 0c5b875cb654..2a91670ccb8c 100644
--- a/Documentation/devicetree/bindings/arm/arm,coresight-cti.yaml
+++ b/Documentation/devicetree/bindings/arm/arm,coresight-cti.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
# Copyright 2019 Linaro Ltd.
%YAML 1.2
---
@@ -92,15 +92,16 @@ properties:
maxItems: 1
cpu:
- $ref: /schemas/types.yaml#/definitions/phandle
description:
- Handle to cpu this device is associated with. This must appear in the
- base cti node if compatible string arm,coresight-cti-v8-arch is used,
- or may appear in a trig-conns child node when appropriate.
+ Handle to cpu this CTI is associated with.
power-domains:
maxItems: 1
+ label:
+ description:
+ Description of a coresight device.
+
arm,cti-ctm-id:
$ref: /schemas/types.yaml#/definitions/uint32
description:
@@ -113,12 +114,12 @@ properties:
description:
defines a phandle reference to an associated CoreSight trace device.
When the associated trace device is enabled, then the respective CTI
- will be enabled. Use in a trig-conns node, or in CTI base node when
- compatible string arm,coresight-cti-v8-arch used. If the associated
- device has not been registered then the node name will be stored as
- the connection name for later resolution. If the associated device is
- not a CoreSight device or not registered then the node name will remain
- the connection name and automatic enabling will not occur.
+ will be enabled. Use in CTI base node when compatible string
+ arm,coresight-cti-v8-arch used. If the associated device has not been
+ registered then the node name will be stored as the connection name for
+ later resolution. If the associated device is not a CoreSight device or
+ not registered then the node name will remain the connection name and
+ automatic enabling will not occur.
# size cells and address cells required if trig-conns node present.
"#size-cells":
@@ -130,6 +131,8 @@ properties:
patternProperties:
'^trig-conns@([0-9]+)$':
type: object
+ additionalProperties: false
+
description:
A trigger connections child node which describes the trigger signals
between this CTI and another hardware device. This device may be a CPU,
@@ -141,6 +144,21 @@ patternProperties:
reg:
maxItems: 1
+ cpu:
+ description:
+ Handle to cpu this trigger connection is associated with.
+
+ arm,cs-dev-assoc:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description:
+ defines a phandle reference to an associated CoreSight trace device.
+ When the associated trace device is enabled, then the respective CTI
+ will be enabled. If the associated device has not been registered
+ then the node name will be stored as the connection name for later
+ resolution. If the associated device is not a CoreSight device or
+ not registered then the node name will remain the connection name
+ and automatic enabling will not occur.
+
arm,trig-in-sigs:
$ref: /schemas/types.yaml#/definitions/uint32-array
minItems: 1
@@ -287,7 +305,7 @@ examples:
arm,trig-in-sigs = <0 1>;
arm,trig-in-types = <PE_DBGTRIGGER
PE_PMUIRQ>;
- arm,trig-out-sigs=<0 1 2 >;
+ arm,trig-out-sigs = <0 1 2 >;
arm,trig-out-types = <PE_EDBGREQ
PE_DBGRESTART
PE_CTIIRQ>;
@@ -309,24 +327,24 @@ examples:
trig-conns@0 {
reg = <0>;
- arm,trig-in-sigs=<0>;
- arm,trig-in-types=<GEN_INTREQ>;
- arm,trig-out-sigs=<0>;
- arm,trig-out-types=<GEN_HALTREQ>;
+ arm,trig-in-sigs = <0>;
+ arm,trig-in-types = <GEN_INTREQ>;
+ arm,trig-out-sigs = <0>;
+ arm,trig-out-types = <GEN_HALTREQ>;
arm,trig-conn-name = "sys_profiler";
};
trig-conns@1 {
reg = <1>;
- arm,trig-out-sigs=<2 3>;
- arm,trig-out-types=<GEN_HALTREQ GEN_RESTARTREQ>;
+ arm,trig-out-sigs = <2 3>;
+ arm,trig-out-types = <GEN_HALTREQ GEN_RESTARTREQ>;
arm,trig-conn-name = "watchdog";
};
trig-conns@2 {
reg = <2>;
- arm,trig-in-sigs=<1 6>;
- arm,trig-in-types=<GEN_HALTREQ GEN_RESTARTREQ>;
+ arm,trig-in-sigs = <1 6>;
+ arm,trig-in-types = <GEN_HALTREQ GEN_RESTARTREQ>;
arm,trig-conn-name = "g_counter";
};
};
diff --git a/Documentation/devicetree/bindings/arm/arm,coresight-dummy-sink.yaml b/Documentation/devicetree/bindings/arm/arm,coresight-dummy-sink.yaml
new file mode 100644
index 000000000000..ed091dc0c10a
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/arm,coresight-dummy-sink.yaml
@@ -0,0 +1,77 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/arm,coresight-dummy-sink.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ARM Coresight Dummy sink component
+
+description: |
+ CoreSight components are compliant with the ARM CoreSight architecture
+ specification and can be connected in various topologies to suit a particular
+ SoCs tracing needs. These trace components can generally be classified as
+ sinks, links and sources. Trace data produced by one or more sources flows
+ through the intermediate links connecting the source to the currently selected
+ sink.
+
+ The Coresight dummy sink component is for the specific coresight sink devices
+ kernel don't have permission to access or configure, e.g., CoreSight EUD on
+ Qualcomm platforms. It is a mini-USB hub implemented to support the USB-based
+ debug and trace capabilities. For this device, a dummy driver is needed to
+ register it as Coresight sink device in kernel side, so that path can be
+ created in the driver. Then the trace flow would be transferred to EUD via
+ coresight link of AP processor. It provides Coresight API for operations on
+ dummy source devices, such as enabling and disabling them. It also provides
+ the Coresight dummy source paths for debugging.
+
+ The primary use case of the coresight dummy sink is to build path in kernel
+ side for dummy sink component.
+
+maintainers:
+ - Mike Leach <mike.leach@linaro.org>
+ - Suzuki K Poulose <suzuki.poulose@arm.com>
+ - James Clark <james.clark@linaro.org>
+ - Mao Jinlong <quic_jinlmao@quicinc.com>
+ - Hao Zhang <quic_hazha@quicinc.com>
+
+properties:
+ compatible:
+ enum:
+ - arm,coresight-dummy-sink
+
+ label:
+ description:
+ Description of a coresight device.
+
+ in-ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+
+ properties:
+ port:
+ description: Input connection from the Coresight Trace bus to
+ dummy sink, such as Embedded USB debugger(EUD).
+
+ $ref: /schemas/graph.yaml#/properties/port
+
+required:
+ - compatible
+ - in-ports
+
+additionalProperties: false
+
+examples:
+ # Minimum dummy sink definition. Dummy sink connect to coresight replicator.
+ - |
+ sink {
+ compatible = "arm,coresight-dummy-sink";
+
+ in-ports {
+ port {
+ eud_in_replicator_swao: endpoint {
+ remote-endpoint = <&replicator_swao_out_eud>;
+ };
+ };
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/arm/arm,coresight-dummy-source.yaml b/Documentation/devicetree/bindings/arm/arm,coresight-dummy-source.yaml
new file mode 100644
index 000000000000..78337be42b55
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/arm,coresight-dummy-source.yaml
@@ -0,0 +1,81 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/arm,coresight-dummy-source.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ARM Coresight Dummy source component
+
+description: |
+ CoreSight components are compliant with the ARM CoreSight architecture
+ specification and can be connected in various topologies to suit a particular
+ SoCs tracing needs. These trace components can generally be classified as
+ sinks, links and sources. Trace data produced by one or more sources flows
+ through the intermediate links connecting the source to the currently selected
+ sink.
+
+ The Coresight dummy source component is for the specific coresight source
+ devices kernel don't have permission to access or configure. For some SOCs,
+ there would be Coresight source trace components on sub-processor which
+ are connected to AP processor via debug bus. For these devices, a dummy driver
+ is needed to register them as Coresight source devices, so that paths can be
+ created in the driver. It provides Coresight API for operations on dummy
+ source devices, such as enabling and disabling them. It also provides the
+ Coresight dummy source paths for debugging.
+
+ The primary use case of the coresight dummy source is to build path in kernel
+ side for dummy source component.
+
+maintainers:
+ - Mike Leach <mike.leach@linaro.org>
+ - Suzuki K Poulose <suzuki.poulose@arm.com>
+ - James Clark <james.clark@linaro.org>
+ - Mao Jinlong <quic_jinlmao@quicinc.com>
+ - Hao Zhang <quic_hazha@quicinc.com>
+
+properties:
+ compatible:
+ enum:
+ - arm,coresight-dummy-source
+
+ label:
+ description:
+ Description of a coresight device.
+
+ arm,static-trace-id:
+ description: If dummy source needs static id support, use this to set trace id.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 1
+ maximum: 111
+
+ out-ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+
+ properties:
+ port:
+ description: Output connection from the source to Coresight
+ Trace bus.
+ $ref: /schemas/graph.yaml#/properties/port
+
+required:
+ - compatible
+ - out-ports
+
+additionalProperties: false
+
+examples:
+ # Minimum dummy source definition. Dummy source connect to coresight funnel.
+ - |
+ source {
+ compatible = "arm,coresight-dummy-source";
+
+ out-ports {
+ port {
+ dummy_riscv_out_funnel_swao: endpoint {
+ remote-endpoint = <&funnel_swao_in_dummy_riscv>;
+ };
+ };
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/arm/arm,coresight-dynamic-funnel.yaml b/Documentation/devicetree/bindings/arm/arm,coresight-dynamic-funnel.yaml
index 44a1041cb0fc..b74db15e5f8a 100644
--- a/Documentation/devicetree/bindings/arm/arm,coresight-dynamic-funnel.yaml
+++ b/Documentation/devicetree/bindings/arm/arm,coresight-dynamic-funnel.yaml
@@ -57,6 +57,10 @@ properties:
power-domains:
maxItems: 1
+ label:
+ description:
+ Description of a coresight device.
+
in-ports:
$ref: /schemas/graph.yaml#/properties/ports
diff --git a/Documentation/devicetree/bindings/arm/arm,coresight-dynamic-replicator.yaml b/Documentation/devicetree/bindings/arm/arm,coresight-dynamic-replicator.yaml
index 03792e9bd97a..17ea936b796f 100644
--- a/Documentation/devicetree/bindings/arm/arm,coresight-dynamic-replicator.yaml
+++ b/Documentation/devicetree/bindings/arm/arm,coresight-dynamic-replicator.yaml
@@ -54,6 +54,10 @@ properties:
- const: apb_pclk
- const: atclk
+ label:
+ description:
+ Description of a coresight device.
+
power-domains:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/arm/arm,coresight-etb10.yaml b/Documentation/devicetree/bindings/arm/arm,coresight-etb10.yaml
index 90679788e0bf..892df7aca1ac 100644
--- a/Documentation/devicetree/bindings/arm/arm,coresight-etb10.yaml
+++ b/Documentation/devicetree/bindings/arm/arm,coresight-etb10.yaml
@@ -54,6 +54,10 @@ properties:
- const: apb_pclk
- const: atclk
+ label:
+ description:
+ Description of a coresight device.
+
power-domains:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/arm/arm,coresight-etm.yaml b/Documentation/devicetree/bindings/arm/arm,coresight-etm.yaml
index 01200f67504a..71f2e1ed27e5 100644
--- a/Documentation/devicetree/bindings/arm/arm,coresight-etm.yaml
+++ b/Documentation/devicetree/bindings/arm/arm,coresight-etm.yaml
@@ -85,6 +85,10 @@ properties:
CPU powers down the coresight component also powers down and loses its
context.
+ label:
+ description:
+ Description of a coresight device.
+
arm,cp14:
type: boolean
description:
diff --git a/Documentation/devicetree/bindings/arm/arm,coresight-static-funnel.yaml b/Documentation/devicetree/bindings/arm/arm,coresight-static-funnel.yaml
index cc8c3baa79b4..9598a3d0a95b 100644
--- a/Documentation/devicetree/bindings/arm/arm,coresight-static-funnel.yaml
+++ b/Documentation/devicetree/bindings/arm/arm,coresight-static-funnel.yaml
@@ -30,6 +30,10 @@ properties:
power-domains:
maxItems: 1
+ label:
+ description:
+ Description of a coresight device.
+
in-ports:
$ref: /schemas/graph.yaml#/properties/ports
diff --git a/Documentation/devicetree/bindings/arm/arm,coresight-static-replicator.yaml b/Documentation/devicetree/bindings/arm/arm,coresight-static-replicator.yaml
index 1892a091ac35..b81851b26c74 100644
--- a/Documentation/devicetree/bindings/arm/arm,coresight-static-replicator.yaml
+++ b/Documentation/devicetree/bindings/arm/arm,coresight-static-replicator.yaml
@@ -30,6 +30,23 @@ properties:
power-domains:
maxItems: 1
+ clocks:
+ minItems: 1
+ maxItems: 3
+
+ clock-names:
+ oneOf:
+ - items:
+ - enum: [apb_pclk, atclk]
+ - items: # Zynq-700
+ - const: apb_pclk
+ - const: dbg_trc
+ - const: dbg_apb
+
+ label:
+ description:
+ Description of a coresight device.
+
in-ports:
$ref: /schemas/graph.yaml#/properties/ports
additionalProperties: false
@@ -45,7 +62,22 @@ properties:
patternProperties:
'^port@[01]$':
description: Output connections to CoreSight Trace bus
- $ref: /schemas/graph.yaml#/properties/port
+ $ref: /schemas/graph.yaml#/$defs/port-base
+ unevaluatedProperties: false
+
+ properties:
+ endpoint:
+ $ref: /schemas/graph.yaml#/$defs/endpoint-base
+ unevaluatedProperties: false
+
+ properties:
+ filter-source:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description:
+ phandle to the coresight trace source device matching the
+ hard coded filtering for this port
+
+ remote-endpoint: true
required:
- compatible
@@ -72,6 +104,7 @@ examples:
reg = <0>;
replicator_out_port0: endpoint {
remote-endpoint = <&etb_in_port>;
+ filter-source = <&tpdm_video>;
};
};
@@ -79,6 +112,7 @@ examples:
reg = <1>;
replicator_out_port1: endpoint {
remote-endpoint = <&tpiu_in_port>;
+ filter-source = <&tpdm_mdss>;
};
};
};
diff --git a/Documentation/devicetree/bindings/arm/arm,coresight-tmc.yaml b/Documentation/devicetree/bindings/arm/arm,coresight-tmc.yaml
index cb8dceaca70e..96dd5b5f771a 100644
--- a/Documentation/devicetree/bindings/arm/arm,coresight-tmc.yaml
+++ b/Documentation/devicetree/bindings/arm/arm,coresight-tmc.yaml
@@ -55,6 +55,10 @@ properties:
- const: apb_pclk
- const: atclk
+ label:
+ description:
+ Description of a coresight device.
+
iommus:
maxItems: 1
@@ -101,6 +105,29 @@ properties:
and ETF configurations.
$ref: /schemas/graph.yaml#/properties/port
+ memory-region:
+ items:
+ - description: Reserved trace buffer memory for ETR and ETF sinks.
+ For ETR, this reserved memory region is used for trace data capture.
+ Same region is used for trace data retention as well after a panic
+ or watchdog reset.
+ This reserved memory region is used as trace buffer or used for trace
+ data retention only if specifically selected by the user in sysfs
+ interface.
+ The default memory usage models for ETR in sysfs/perf modes are
+ otherwise unaltered.
+
+ For ETF, this reserved memory region is used by default for
+ retention of trace data synced from internal SRAM after a panic
+ or watchdog reset.
+ - description: Reserved meta data memory. Used for ETR and ETF sinks
+ for storing metadata.
+
+ memory-region-names:
+ items:
+ - const: tracedata
+ - const: metadata
+
required:
- compatible
- reg
@@ -115,6 +142,9 @@ examples:
etr@20070000 {
compatible = "arm,coresight-tmc", "arm,primecell";
reg = <0x20070000 0x1000>;
+ memory-region = <&etr_trace_mem_reserved>,
+ <&etr_mdata_mem_reserved>;
+ memory-region-names = "tracedata", "metadata";
clocks = <&oscclk6a>;
clock-names = "apb_pclk";
diff --git a/Documentation/devicetree/bindings/arm/arm,coresight-tpiu.yaml b/Documentation/devicetree/bindings/arm/arm,coresight-tpiu.yaml
index 61a0cdc27745..a207f6899e67 100644
--- a/Documentation/devicetree/bindings/arm/arm,coresight-tpiu.yaml
+++ b/Documentation/devicetree/bindings/arm/arm,coresight-tpiu.yaml
@@ -54,6 +54,10 @@ properties:
- const: apb_pclk
- const: atclk
+ label:
+ description:
+ Description of a coresight device.
+
power-domains:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/arm/arm,corstone1000.yaml b/Documentation/devicetree/bindings/arm/arm,corstone1000.yaml
index 693f3fe7be60..cff1cdaadb13 100644
--- a/Documentation/devicetree/bindings/arm/arm,corstone1000.yaml
+++ b/Documentation/devicetree/bindings/arm/arm,corstone1000.yaml
@@ -7,8 +7,8 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: ARM Corstone1000
maintainers:
- - Vishnu Banavath <vishnu.banavath@arm.com>
- - Rui Miguel Silva <rui.silva@linaro.org>
+ - Abdellatif El Khlifi <abdellatif.elkhlifi@arm.com>
+ - Hugues Kamba Mpiana <hugues.kambampiana@arm.com>
description: |+
ARM's Corstone1000 includes pre-verified Corstone SSE-710 subsystem that
diff --git a/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml b/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml
index 108460627d9a..9c2c9ac9705a 100644
--- a/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml
+++ b/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml
@@ -1,9 +1,9 @@
-# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
# Copyright 2021, Arm Ltd
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/arm/arm,embedded-trace-extension.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/arm/arm,embedded-trace-extension.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: ARM Embedded Trace Extensions
@@ -23,7 +23,7 @@ description: |
properties:
$nodename:
- pattern: "^ete([0-9a-f]+)$"
+ pattern: "^ete(-[0-9]+)?$"
compatible:
items:
- const: arm,embedded-trace-extension
@@ -55,13 +55,13 @@ examples:
# An ETE node without legacy CoreSight connections
- |
- ete0 {
+ ete-0 {
compatible = "arm,embedded-trace-extension";
cpu = <&cpu_0>;
};
# An ETE node with legacy CoreSight connections
- |
- ete1 {
+ ete-1 {
compatible = "arm,embedded-trace-extension";
cpu = <&cpu_1>;
diff --git a/Documentation/devicetree/bindings/arm/arm,integrator.yaml b/Documentation/devicetree/bindings/arm/arm,integrator.yaml
index 98ff5698ae1f..1bdbd1b7ee38 100644
--- a/Documentation/devicetree/bindings/arm/arm,integrator.yaml
+++ b/Documentation/devicetree/bindings/arm/arm,integrator.yaml
@@ -40,45 +40,6 @@ properties:
items:
- const: arm,integrator-sp
- core-module@10000000:
- type: object
- description: the root node in the Integrator platforms must contain
- a core module child node. They are always at physical address
- 0x10000000 in all the Integrator variants.
- properties:
- compatible:
- items:
- - const: arm,core-module-integrator
- - const: syscon
- - const: simple-mfd
- reg:
- maxItems: 1
-
- required:
- - compatible
- - reg
-
-patternProperties:
- "^syscon@[0-9a-f]+$":
- description: All Integrator boards must provide a system controller as a
- node in the root of the device tree.
- type: object
- properties:
- compatible:
- items:
- - enum:
- - arm,integrator-ap-syscon
- - arm,integrator-cp-syscon
- - arm,integrator-sp-syscon
- - const: syscon
- reg:
- maxItems: 1
-
- required:
- - compatible
- - reg
-
-
required:
- compatible
- core-module@10000000
diff --git a/Documentation/devicetree/bindings/arm/arm,juno-fpga-apb-regs.yaml b/Documentation/devicetree/bindings/arm/arm,juno-fpga-apb-regs.yaml
new file mode 100644
index 000000000000..ce5f2e1ec1ea
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/arm,juno-fpga-apb-regs.yaml
@@ -0,0 +1,61 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/arm,juno-fpga-apb-regs.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ARM Juno FPGA APB Registers
+
+maintainers:
+ - Sudeep Holla <sudeep.holla@arm.com>
+
+properties:
+ compatible:
+ items:
+ - const: arm,juno-fpga-apb-regs
+ - const: syscon
+ - const: simple-mfd
+
+ reg:
+ maxItems: 1
+
+ ranges: true
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 1
+
+patternProperties:
+ "^led@[0-9a-f]+,[0-9a-f]$":
+ $ref: /schemas/leds/register-bit-led.yaml#
+
+required:
+ - compatible
+ - reg
+ - ranges
+ - "#address-cells"
+ - "#size-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ syscon@10000 {
+ compatible = "arm,juno-fpga-apb-regs", "syscon", "simple-mfd";
+ reg = <0x010000 0x1000>;
+ ranges = <0x0 0x10000 0x1000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ led@8,0 {
+ compatible = "register-bit-led";
+ reg = <0x08 0x04>;
+ offset = <0x08>;
+ mask = <0x01>;
+ label = "vexpress:0";
+ linux,default-trigger = "heartbeat";
+ default-state = "on";
+ };
+ };
diff --git a/Documentation/devicetree/bindings/arm/arm,morello.yaml b/Documentation/devicetree/bindings/arm/arm,morello.yaml
new file mode 100644
index 000000000000..e843b97fa485
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/arm,morello.yaml
@@ -0,0 +1,35 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/arm,morello.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ARM Morello Platforms
+
+maintainers:
+ - Vincenzo Frascino <vincenzo.frascino@arm.com>
+
+description: |+
+ The Morello architecture is an experimental extension to Armv8.2-A,
+ which extends the AArch64 state with the principles proposed in
+ version 7 of the Capability Hardware Enhanced RISC Instructions
+ (CHERI) ISA.
+
+ ARM's Morello Platforms are built as a research project to explore
+ capability architectures based on arm.
+
+properties:
+ $nodename:
+ const: '/'
+ compatible:
+ oneOf:
+ - description: Arm Morello System Platforms
+ items:
+ - enum:
+ - arm,morello-sdp
+ - arm,morello-fvp
+ - const: arm,morello
+
+additionalProperties: true
+
+...
diff --git a/Documentation/devicetree/bindings/arm/arm,realview.yaml b/Documentation/devicetree/bindings/arm/arm,realview.yaml
index 8d3ed2e4ed31..3c5f1688dbd7 100644
--- a/Documentation/devicetree/bindings/arm/arm,realview.yaml
+++ b/Documentation/devicetree/bindings/arm/arm,realview.yaml
@@ -10,9 +10,9 @@ maintainers:
- Linus Walleij <linus.walleij@linaro.org>
description: |+
- The ARM RealView series of reference designs were built to explore the ARM
- 11, Cortex A-8 and Cortex A-9 CPUs. This included new features compared to
- the earlier CPUs such as TrustZone and multicore (MPCore).
+ The ARM RealView series of reference designs were built to explore the Arm11,
+ Cortex-A8, and Cortex-A9 CPUs. This included new features compared to the
+ earlier CPUs such as TrustZone and multicore (MPCore).
properties:
$nodename:
@@ -75,43 +75,6 @@ properties:
type: object
description: All RealView boards must provide a syscon system controller
node inside the soc node.
- properties:
- compatible:
- oneOf:
- - items:
- - const: arm,realview-eb11mp-revb-syscon
- - const: arm,realview-eb-syscon
- - const: syscon
- - const: simple-mfd
- - items:
- - const: arm,realview-eb11mp-revc-syscon
- - const: arm,realview-eb-syscon
- - const: syscon
- - const: simple-mfd
- - items:
- - const: arm,realview-eb-syscon
- - const: syscon
- - const: simple-mfd
- - items:
- - const: arm,realview-pb1176-syscon
- - const: syscon
- - const: simple-mfd
- - items:
- - const: arm,realview-pb11mp-syscon
- - const: syscon
- - const: simple-mfd
- - items:
- - const: arm,realview-pba8-syscon
- - const: syscon
- - const: simple-mfd
- - items:
- - const: arm,realview-pbx-syscon
- - const: syscon
- - const: simple-mfd
-
- required:
- - compatible
- - reg
required:
- compatible
diff --git a/Documentation/devicetree/bindings/arm/arm,trace-buffer-extension.yaml b/Documentation/devicetree/bindings/arm/arm,trace-buffer-extension.yaml
index b1322658063a..f5b54b4fc55d 100644
--- a/Documentation/devicetree/bindings/arm/arm,trace-buffer-extension.yaml
+++ b/Documentation/devicetree/bindings/arm/arm,trace-buffer-extension.yaml
@@ -1,9 +1,9 @@
-# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
# Copyright 2021, Arm Ltd
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/arm/arm,trace-buffer-extension.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/arm/arm,trace-buffer-extension.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: ARM Trace Buffer Extensions
@@ -19,7 +19,8 @@ description: |
properties:
$nodename:
- const: "trbe"
+ const: trbe
+
compatible:
items:
- const: arm,trace-buffer-extension
@@ -40,10 +41,10 @@ additionalProperties: false
examples:
- |
- #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
- trbe {
- compatible = "arm,trace-buffer-extension";
- interrupts = <GIC_PPI 15 IRQ_TYPE_LEVEL_HIGH>;
- };
+ trbe {
+ compatible = "arm,trace-buffer-extension";
+ interrupts = <GIC_PPI 15 IRQ_TYPE_LEVEL_HIGH>;
+ };
...
diff --git a/Documentation/devicetree/bindings/arm/arm,versatile-sysreg.yaml b/Documentation/devicetree/bindings/arm/arm,versatile-sysreg.yaml
index 491eef1e1b10..3b060c36b90c 100644
--- a/Documentation/devicetree/bindings/arm/arm,versatile-sysreg.yaml
+++ b/Documentation/devicetree/bindings/arm/arm,versatile-sysreg.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause)
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/arm/arm,versatile-sysreg.yaml#
diff --git a/Documentation/devicetree/bindings/arm/arm,versatile.yaml b/Documentation/devicetree/bindings/arm/arm,versatile.yaml
index 13e52ba92060..7a3caf6af200 100644
--- a/Documentation/devicetree/bindings/arm/arm,versatile.yaml
+++ b/Documentation/devicetree/bindings/arm/arm,versatile.yaml
@@ -14,6 +14,14 @@ description: |+
with various pluggable interface boards, in essence the Versatile PB version
is a superset of the Versatile AB version.
+ The root node in the Versatile platforms must contain a core module child
+ node. They are always at physical address 0x10000000 in all the Versatile
+ variants.
+
+ When fitted with the IB2 Interface Board, the Versatile AB will present an
+ optional system controller node which controls the extra peripherals on the
+ interface board.
+
properties:
$nodename:
const: '/'
@@ -32,38 +40,6 @@ properties:
items:
- const: arm,versatile-pb
- core-module@10000000:
- type: object
- description: the root node in the Versatile platforms must contain
- a core module child node. They are always at physical address
- 0x10000000 in all the Versatile variants.
- properties:
- compatible:
- items:
- - const: arm,core-module-versatile
- - const: syscon
- - const: simple-mfd
- reg:
- maxItems: 1
-
- required:
- - compatible
- - reg
-
-patternProperties:
- "^syscon@[0-9a-f]+$":
- type: object
- description: When fitted with the IB2 Interface Board, the Versatile
- AB will present an optional system controller node which controls the
- extra peripherals on the interface board.
- properties:
- compatible:
- contains:
- const: arm,versatile-ib2-syscon
- required:
- - compatible
- - reg
-
required:
- compatible
- core-module@10000000
diff --git a/Documentation/devicetree/bindings/arm/arm,vexpress-juno.yaml b/Documentation/devicetree/bindings/arm/arm,vexpress-juno.yaml
index 09c319f803ba..4cdca5320544 100644
--- a/Documentation/devicetree/bindings/arm/arm,vexpress-juno.yaml
+++ b/Documentation/devicetree/bindings/arm/arm,vexpress-juno.yaml
@@ -103,8 +103,9 @@ properties:
- const: arm,juno-r2
- const: arm,juno
- const: arm,vexpress
- - description: Arm AEMv8a Versatile Express Real-Time System Model
- (VE RTSM) is a programmers view of the Versatile Express with Arm
+ - description: Arm AEMv8a (Architecture Envelope Model)
+ Versatile Express Real-Time System Model (VE RTSM)
+ is a programmers view of the Versatile Express with Arm
v8A hardware. See ARM DUI 0575D.
items:
- const: arm,rtsm_ve,aemv8a
@@ -122,14 +123,14 @@ properties:
arm,vexpress,position:
description: When daughterboards are stacked on one site, their position
in the stack be be described this attribute.
- $ref: '/schemas/types.yaml#/definitions/uint32'
+ $ref: /schemas/types.yaml#/definitions/uint32
minimum: 0
maximum: 3
arm,vexpress,dcc:
description: When describing tiles consisting of more than one DCC, its
number can be specified with this attribute.
- $ref: '/schemas/types.yaml#/definitions/uint32'
+ $ref: /schemas/types.yaml#/definitions/uint32
minimum: 0
maximum: 3
@@ -139,11 +140,11 @@ patternProperties:
the connection between the motherboard and any tiles. Sometimes the
compatible is placed directly under this node, sometimes it is placed
in a subnode named "motherboard-bus". Sometimes the compatible includes
- "arm,vexpress,v2?-p1" sometimes (on software models) is is just
+ "arm,vexpress,v2?-p1" sometimes (on software models) it is just
"simple-bus". If the compatible is placed in the "motherboard-bus" node,
it is stricter and always has two compatibles.
type: object
- $ref: '/schemas/simple-bus.yaml'
+ $ref: /schemas/simple-bus.yaml
unevaluatedProperties: false
properties:
@@ -180,13 +181,13 @@ patternProperties:
- const: simple-bus
arm,v2m-memory-map:
description: This describes the memory map type.
- $ref: '/schemas/types.yaml#/definitions/string'
+ $ref: /schemas/types.yaml#/definitions/string
enum:
- rs1
- rs2
arm,hbi:
- $ref: '/schemas/types.yaml#/definitions/uint32'
+ $ref: /schemas/types.yaml#/definitions/uint32
description: This indicates the ARM HBI (Hardware Board ID), this is
ARM's unique board model ID, visible on the PCB's silkscreen.
@@ -197,7 +198,7 @@ patternProperties:
property, describing the physical location of the children nodes.
0 means motherboard site, while 1 and 2 are daughterboard sites, and
0xf means "sisterboard" which is the site containing the main CPU tile.
- $ref: '/schemas/types.yaml#/definitions/uint32'
+ $ref: /schemas/types.yaml#/definitions/uint32
minimum: 0
maximum: 15
diff --git a/Documentation/devicetree/bindings/arm/aspeed/aspeed,sbc.yaml b/Documentation/devicetree/bindings/arm/aspeed/aspeed,sbc.yaml
index c72aab706484..b8c5cacb09bd 100644
--- a/Documentation/devicetree/bindings/arm/aspeed/aspeed,sbc.yaml
+++ b/Documentation/devicetree/bindings/arm/aspeed/aspeed,sbc.yaml
@@ -2,8 +2,8 @@
# Copyright 2021 Joel Stanley, IBM Corp.
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/arm/aspeed/aspeed,sbc.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/arm/aspeed/aspeed,sbc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: ASPEED Secure Boot Controller
diff --git a/Documentation/devicetree/bindings/arm/aspeed/aspeed.yaml b/Documentation/devicetree/bindings/arm/aspeed/aspeed.yaml
index e0eff4c05879..9298c1a75dd1 100644
--- a/Documentation/devicetree/bindings/arm/aspeed/aspeed.yaml
+++ b/Documentation/devicetree/bindings/arm/aspeed/aspeed.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/arm/aspeed/aspeed.yaml#
@@ -35,7 +35,10 @@ properties:
- ampere,mtjade-bmc
- aspeed,ast2500-evb
- asrock,e3c246d4i-bmc
+ - asrock,e3c256d4i-bmc
- asrock,romed8hm3-bmc
+ - asrock,spc621d8hm3-bmc
+ - asrock,x570d4u-bmc
- bytedance,g220a-bmc
- facebook,cmm-bmc
- facebook,minipack-bmc
@@ -43,6 +46,7 @@ properties:
- facebook,yamp-bmc
- facebook,yosemitev2-bmc
- facebook,wedge400-bmc
+ - facebook,wedge400-data64-bmc
- hxt,stardragon4800-rep2-bmc
- ibm,mihawk-bmc
- ibm,mowgli-bmc
@@ -71,19 +75,38 @@ properties:
- description: AST2600 based boards
items:
- enum:
+ - ampere,mtjefferson-bmc
- ampere,mtmitchell-bmc
- aspeed,ast2600-evb
- aspeed,ast2600-evb-a1
+ - asus,x4tf-bmc
- facebook,bletchley-bmc
+ - facebook,catalina-bmc
+ - facebook,clemente-bmc
- facebook,cloudripper-bmc
+ - facebook,darwin-bmc
- facebook,elbert-bmc
- facebook,fuji-bmc
+ - facebook,fuji-data64-bmc
- facebook,greatlakes-bmc
+ - facebook,harma-bmc
+ - facebook,minerva-cmc
+ - facebook,santabarbara-bmc
+ - facebook,yosemite4-bmc
+ - facebook,yosemite5-bmc
+ - ibm,balcones-bmc
+ - ibm,blueridge-bmc
+ - ibm,bonnell-bmc
- ibm,everest-bmc
+ - ibm,fuji-bmc
- ibm,rainier-bmc
+ - ibm,sbp1-bmc
+ - ibm,system1-bmc
- ibm,tacoma-bmc
+ - inventec,starscream-bmc
- inventec,transformer-bmc
- jabil,rbp-bmc
+ - nvidia,gb200nvl-bmc
- qcom,dc-scm-v1-bmc
- quanta,s6q-bmc
- ufispace,ncplite-bmc
diff --git a/Documentation/devicetree/bindings/arm/atmel,sama5d2-secumod.yaml b/Documentation/devicetree/bindings/arm/atmel,sama5d2-secumod.yaml
new file mode 100644
index 000000000000..ad4a98a4ee67
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/atmel,sama5d2-secumod.yaml
@@ -0,0 +1,49 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/atmel,sama5d2-secumod.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip AT91 Security Module (SECUMOD)
+
+maintainers:
+ - Nicolas Ferre <nicolas.ferre@microchip.com>
+
+description:
+ The Security Module also offers the PIOBU pins which can be used as GPIO pins.
+ Note that they maintain their voltage during Backup/Self-refresh.
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - const: atmel,sama5d2-secumod
+ - const: syscon
+ - items:
+ - enum:
+ - microchip,sama7d65-secumod
+ - microchip,sama7g5-secumod
+ - const: atmel,sama5d2-secumod
+ - const: syscon
+ reg:
+ maxItems: 1
+
+ gpio-controller: true
+
+ "#gpio-cells":
+ const: 2
+
+required:
+ - compatible
+ - reg
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ security-module@fc040000 {
+ compatible = "atmel,sama5d2-secumod", "syscon";
+ reg = <0xfc040000 0x100>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
diff --git a/Documentation/devicetree/bindings/arm/atmel-at91.yaml b/Documentation/devicetree/bindings/arm/atmel-at91.yaml
index dfb8fd089197..3a34b7a2e8d4 100644
--- a/Documentation/devicetree/bindings/arm/atmel-at91.yaml
+++ b/Documentation/devicetree/bindings/arm/atmel-at91.yaml
@@ -23,8 +23,6 @@ properties:
- const: atmel,at91rm9200
- items:
- enum:
- - olimex,sam9-l9260
- - enum:
- atmel,at91sam9260
- atmel,at91sam9261
- atmel,at91sam9263
@@ -36,6 +34,37 @@ properties:
- atmel,at91sam9x60
- const: atmel,at91sam9
+ - description: Olimex SAM9-L9260
+ items:
+ - const: olimex,sam9-l9260
+ - const: atmel,at91sam9260
+ - const: atmel,at91sam9
+
+ - description: Calao USB A9260
+ items:
+ - const: calao,usb-a9260
+ - const: atmel,at91sam9260
+ - const: atmel,at91sam9
+
+ - description: Calao USB A9263
+ items:
+ - const: calao,usb-a9263
+ - const: atmel,at91sam9263
+ - const: atmel,at91sam9
+
+ - description: Calao USB A9G20
+ items:
+ - const: calao,usb-a9g20
+ - const: atmel,at91sam9g20
+ - const: atmel,at91sam9
+
+ - description: Calao USB A9G20-LPW
+ items:
+ - const: calao,usb-a9g20-lpw
+ - const: calao,usb-a9g20
+ - const: atmel,at91sam9g20
+ - const: atmel,at91sam9
+
- items:
- enum:
- overkiz,kizboxmini-base # Overkiz kizbox Mini Base Board
@@ -79,6 +108,13 @@ properties:
- const: atmel,sama5d2
- const: atmel,sama5
+ - description: Microchip SAMA5D29 Curiosity
+ items:
+ - const: microchip,sama5d29-curiosity
+ - const: atmel,sama5d29
+ - const: atmel,sama5d2
+ - const: atmel,sama5
+
- items:
- const: atmel,sama5d27
- const: atmel,sama5d2
@@ -99,6 +135,12 @@ properties:
- const: microchip,sam9x60
- const: atmel,at91sam9
+ - description: Microchip SAM9X7 Evaluation Boards
+ items:
+ - const: microchip,sam9x75-curiosity
+ - const: microchip,sam9x7
+ - const: atmel,at91sam9
+
- description: Nattis v2 board with Natte v2 power board
items:
- const: axentia,nattis-2
@@ -167,11 +209,24 @@ properties:
- const: atmel,sama5d4
- const: atmel,sama5
+ - description: Microchip SAMA7D65 Curiosity Board
+ items:
+ - const: microchip,sama7d65-curiosity
+ - const: microchip,sama7d65
+ - const: microchip,sama7d6
+ - const: microchip,sama7
+
- items:
- const: microchip,sama7g5ek # SAMA7G5 Evaluation Kit
- const: microchip,sama7g5
- const: microchip,sama7
+ - description: Microchip SAMA7G54 Curiosity Board
+ items:
+ - const: microchip,sama7g54-curiosity
+ - const: microchip,sama7g5
+ - const: microchip,sama7
+
- description: Microchip LAN9662 Evaluation Boards.
items:
- enum:
diff --git a/Documentation/devicetree/bindings/arm/atmel-sysregs.txt b/Documentation/devicetree/bindings/arm/atmel-sysregs.txt
index ab1b352344ae..5ce54f9befe6 100644
--- a/Documentation/devicetree/bindings/arm/atmel-sysregs.txt
+++ b/Documentation/devicetree/bindings/arm/atmel-sysregs.txt
@@ -2,6 +2,7 @@ Atmel system registers
Chipid required properties:
- compatible: Should be "atmel,sama5d2-chipid" or "microchip,sama7g5-chipid"
+ "microchip,sama7d65-chipid"
- reg : Should contain registers location and length
PIT Timer required properties:
@@ -11,7 +12,9 @@ PIT Timer required properties:
shared across all System Controller members.
PIT64B Timer required properties:
-- compatible: Should be "microchip,sam9x60-pit64b"
+- compatible: Should be "microchip,sam9x60-pit64b" or
+ "microchip,sam9x7-pit64b", "microchip,sam9x60-pit64b"
+ "microchip,sama7d65-pit64b", "microchip,sam9x60-pit64b"
- reg: Should contain registers location and length
- interrupts: Should contain interrupt for PIT64B timer
- clocks: Should contain the available clock sources for PIT64B timer.
@@ -26,12 +29,14 @@ Its subnodes can be:
- watchdog: compatible should be "atmel,at91rm9200-wdt"
RAMC SDRAM/DDR Controller required properties:
-- compatible: Should be "atmel,at91rm9200-sdramc", "syscon"
- "atmel,at91sam9260-sdramc",
- "atmel,at91sam9g45-ddramc",
- "atmel,sama5d3-ddramc",
- "microchip,sam9x60-ddramc",
- "microchip,sama7g5-uddrc"
+- compatible: Should be "atmel,at91rm9200-sdramc", "syscon" or
+ "atmel,at91sam9260-sdramc" or
+ "atmel,at91sam9g45-ddramc" or
+ "atmel,sama5d3-ddramc" or
+ "microchip,sam9x60-ddramc" or
+ "microchip,sama7g5-uddrc" or
+ "microchip,sama7d65-uddrc", "microchip,sama7g5-uddrc" or
+ "microchip,sam9x7-ddramc", "atmel,sama5d3-ddramc".
- reg: Should contain registers location and length
Examples:
@@ -41,151 +46,3 @@ Examples:
reg = <0xffffe800 0x200>;
};
-RAMC PHY Controller required properties:
-- compatible: Should be "microchip,sama7g5-ddr3phy", "syscon"
-- reg: Should contain registers location and length
-
-Example:
-
- ddr3phy: ddr3phy@e3804000 {
- compatible = "microchip,sama7g5-ddr3phy", "syscon";
- reg = <0xe3804000 0x1000>;
-};
-
-SHDWC Shutdown Controller
-
-required properties:
-- compatible: Should be "atmel,<chip>-shdwc".
- <chip> can be "at91sam9260", "at91sam9rl" or "at91sam9x5".
-- reg: Should contain registers location and length
-- clocks: phandle to input clock.
-
-optional properties:
-- atmel,wakeup-mode: String, operation mode of the wakeup mode.
- Supported values are: "none", "high", "low", "any".
-- atmel,wakeup-counter: Counter on Wake-up 0 (between 0x0 and 0xf).
-
-optional at91sam9260 properties:
-- atmel,wakeup-rtt-timer: boolean to enable Real-time Timer Wake-up.
-
-optional at91sam9rl properties:
-- atmel,wakeup-rtc-timer: boolean to enable Real-time Clock Wake-up.
-- atmel,wakeup-rtt-timer: boolean to enable Real-time Timer Wake-up.
-
-optional at91sam9x5 properties:
-- atmel,wakeup-rtc-timer: boolean to enable Real-time Clock Wake-up.
-
-Example:
-
- shdwc@fffffd10 {
- compatible = "atmel,at91sam9260-shdwc";
- reg = <0xfffffd10 0x10>;
- clocks = <&clk32k>;
- };
-
-SHDWC SAMA5D2-Compatible Shutdown Controller
-
-1) shdwc node
-
-required properties:
-- compatible: should be "atmel,sama5d2-shdwc", "microchip,sam9x60-shdwc" or
- "microchip,sama7g5-shdwc"
-- reg: should contain registers location and length
-- clocks: phandle to input clock.
-- #address-cells: should be one. The cell is the wake-up input index.
-- #size-cells: should be zero.
-
-optional properties:
-
-- debounce-delay-us: minimum wake-up inputs debouncer period in
- microseconds. It's usually a board-related property.
-- atmel,wakeup-rtc-timer: boolean to enable Real-Time Clock wake-up.
-
-optional microchip,sam9x60-shdwc or microchip,sama7g5-shdwc properties:
-- atmel,wakeup-rtt-timer: boolean to enable Real-time Timer Wake-up.
-
-The node contains child nodes for each wake-up input that the platform uses.
-
-2) input nodes
-
-Wake-up input nodes are usually described in the "board" part of the Device
-Tree. Note also that input 0 is linked to the wake-up pin and is frequently
-used.
-
-Required properties:
-- reg: should contain the wake-up input index [0 - 15].
-
-Optional properties:
-- atmel,wakeup-active-high: boolean, the corresponding wake-up input described
- by the child, forces the wake-up of the core power supply on a high level.
- The default is to be active low.
-
-Example:
-
-On the SoC side:
- shdwc@f8048010 {
- compatible = "atmel,sama5d2-shdwc";
- reg = <0xf8048010 0x10>;
- clocks = <&clk32k>;
- #address-cells = <1>;
- #size-cells = <0>;
- atmel,wakeup-rtc-timer;
- };
-
-On the board side:
- shdwc@f8048010 {
- debounce-delay-us = <976>;
-
- input@0 {
- reg = <0>;
- };
-
- input@1 {
- reg = <1>;
- atmel,wakeup-active-high;
- };
- };
-
-Special Function Registers (SFR)
-
-Special Function Registers (SFR) manage specific aspects of the integrated
-memory, bridge implementations, processor and other functionality not controlled
-elsewhere.
-
-required properties:
-- compatible: Should be "atmel,<chip>-sfr", "syscon" or
- "atmel,<chip>-sfrbu", "syscon"
- <chip> can be "sama5d3", "sama5d4" or "sama5d2".
- It also can be "microchip,sam9x60-sfr", "syscon".
-- reg: Should contain registers location and length
-
- sfr@f0038000 {
- compatible = "atmel,sama5d3-sfr", "syscon";
- reg = <0xf0038000 0x60>;
- };
-
-Security Module (SECUMOD)
-
-The Security Module macrocell provides all necessary secure functions to avoid
-voltage, temperature, frequency and mechanical attacks on the chip. It also
-embeds secure memories that can be scrambled.
-
-The Security Module also offers the PIOBU pins which can be used as GPIO pins.
-Note that they maintain their voltage during Backup/Self-refresh.
-
-required properties:
-- compatible: Should be "atmel,<chip>-secumod", "syscon".
- <chip> can be "sama5d2".
-- reg: Should contain registers location and length
-- gpio-controller: Marks the port as GPIO controller.
-- #gpio-cells: There are 2. The pin number is the
- first, the second represents additional
- parameters such as GPIO_ACTIVE_HIGH/LOW.
-
-
- secumod@fc040000 {
- compatible = "atmel,sama5d2-secumod", "syscon";
- reg = <0xfc040000 0x100>;
- gpio-controller;
- #gpio-cells = <2>;
- };
diff --git a/Documentation/devicetree/bindings/arm/axiado.yaml b/Documentation/devicetree/bindings/arm/axiado.yaml
new file mode 100644
index 000000000000..bfabe7b32e65
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/axiado.yaml
@@ -0,0 +1,23 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/axiado.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Axiado Platforms
+
+maintainers:
+ - Harshit Shah <hshah@axiado.com>
+
+properties:
+ $nodename:
+ const: '/'
+ compatible:
+ oneOf:
+ - description: AX3000 based boards
+ items:
+ - enum:
+ - axiado,ax3000-evk # Axiado AX3000 Evaluation Board
+ - const: axiado,ax3000 # Axiado AX3000 SoC
+
+additionalProperties: true
diff --git a/Documentation/devicetree/bindings/arm/axis.txt b/Documentation/devicetree/bindings/arm/axis.txt
deleted file mode 100644
index ae345e1c8d2b..000000000000
--- a/Documentation/devicetree/bindings/arm/axis.txt
+++ /dev/null
@@ -1,29 +0,0 @@
-Axis Communications AB
-ARTPEC series SoC Device Tree Bindings
-
-ARTPEC-6 ARM SoC
-================
-
-Required root node properties:
-- compatible = "axis,artpec6";
-
-ARTPEC-6 System Controller
---------------------------
-
-The ARTPEC-6 has a system controller with mixed functions controlling DMA, PCIe
-and resets.
-
-Required properties:
-- compatible: "axis,artpec6-syscon", "syscon"
-- reg: Address and length of the register bank.
-
-Example:
- syscon {
- compatible = "axis,artpec6-syscon", "syscon";
- reg = <0xf8000000 0x48>;
- };
-
-ARTPEC-6 Development board:
----------------------------
-Required root node properties:
-- compatible = "axis,artpec6-dev-board", "axis,artpec6";
diff --git a/Documentation/devicetree/bindings/arm/axis.yaml b/Documentation/devicetree/bindings/arm/axis.yaml
new file mode 100644
index 000000000000..63e9aca85db7
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/axis.yaml
@@ -0,0 +1,36 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/axis.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Axis ARTPEC platforms
+
+maintainers:
+ - Jesper Nilsson <jesper.nilsson@axis.com>
+ - Lars Persson <lars.persson@axis.com>
+ - linux-arm-kernel@axis.com
+
+description: |
+ ARM platforms using SoCs designed by Axis branded as "ARTPEC".
+
+properties:
+ $nodename:
+ const: '/'
+ compatible:
+ oneOf:
+ - description: Axis ARTPEC-6 SoC board
+ items:
+ - enum:
+ - axis,artpec6-dev-board
+ - const: axis,artpec6
+
+ - description: Axis ARTPEC-8 SoC board
+ items:
+ - enum:
+ - axis,artpec8-grizzly
+ - const: axis,artpec8
+
+additionalProperties: true
+
+...
diff --git a/Documentation/devicetree/bindings/arm/bcm/bcm2835.yaml b/Documentation/devicetree/bindings/arm/bcm/bcm2835.yaml
index 162a39dab218..2729a542c4f3 100644
--- a/Documentation/devicetree/bindings/arm/bcm/bcm2835.yaml
+++ b/Documentation/devicetree/bindings/arm/bcm/bcm2835.yaml
@@ -23,6 +23,12 @@ properties:
- raspberrypi,4-model-b
- const: brcm,bcm2711
+ - description: BCM2712 based Boards
+ items:
+ - enum:
+ - raspberrypi,5-model-b
+ - const: brcm,bcm2712
+
- description: BCM2835 based Boards
items:
- enum:
@@ -46,6 +52,7 @@ properties:
- description: BCM2837 based Boards
items:
- enum:
+ - raspberrypi,2-model-b-rev2
- raspberrypi,3-model-a-plus
- raspberrypi,3-model-b
- raspberrypi,3-model-b-plus
diff --git a/Documentation/devicetree/bindings/arm/bcm/brcm,bcm4708.yaml b/Documentation/devicetree/bindings/arm/bcm/brcm,bcm4708.yaml
index 454b0e93245d..f47d74a5b0b6 100644
--- a/Documentation/devicetree/bindings/arm/bcm/brcm,bcm4708.yaml
+++ b/Documentation/devicetree/bindings/arm/bcm/brcm,bcm4708.yaml
@@ -25,13 +25,16 @@ properties:
- enum:
- asus,rt-ac56u
- asus,rt-ac68u
+ - buffalo,wxr-1750dhp
+ - buffalo,wzr-1166dhp
+ - buffalo,wzr-1166dhp2
- buffalo,wzr-1750dhp
- linksys,ea6300-v1
- linksys,ea6500-v2
- - luxul,xap-1510v1
+ - luxul,xap-1510-v1
- luxul,xwc-1000
- - netgear,r6250v1
- - netgear,r6300v2
+ - netgear,r6250-v1
+ - netgear,r6300-v2
- smartrg,sr400ac
- brcm,bcm94708
- const: brcm,bcm4708
@@ -42,8 +45,8 @@ properties:
- asus,rt-n18u
- buffalo,wzr-600dhp2
- buffalo,wzr-900dhp
- - luxul,xap-1410v1
- - luxul,xwr-1200v1
+ - luxul,xap-1410-v1
+ - luxul,xwr-1200-v1
- tplink,archer-c5-v2
- const: brcm,bcm47081
- const: brcm,bcm4708
@@ -51,6 +54,7 @@ properties:
- description: BCM4709 based boards
items:
- enum:
+ - asus,rt-ac3200
- asus,rt-ac87u
- buffalo,wxr-1900dhp
- linksys,ea9200
@@ -64,6 +68,8 @@ properties:
- description: BCM47094 based boards
items:
- enum:
+ - asus,rt-ac3100
+ - asus,rt-ac5300
- asus,rt-ac88u
- dlink,dir-885l
- dlink,dir-890l
@@ -72,7 +78,7 @@ properties:
- luxul,xap-1610-v1
- luxul,xbr-4500-v1
- luxul,xwc-2000-v1
- - luxul,xwr-3100v1
+ - luxul,xwr-3100-v1
- luxul,xwr-3150-v1
- netgear,r8500
- phicomm,k3
diff --git a/Documentation/devicetree/bindings/arm/bcm/brcm,bcm53573.yaml b/Documentation/devicetree/bindings/arm/bcm/brcm,bcm53573.yaml
new file mode 100644
index 000000000000..81b9a4a641c1
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/bcm/brcm,bcm53573.yaml
@@ -0,0 +1,39 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/bcm/brcm,bcm53573.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Broadcom BCM53573 SoCs family
+
+description:
+ Broadcom BCM53573 / BCM47189 Wi-Fi SoCs derived from Northstar.
+
+maintainers:
+ - Rafał Miłecki <rafal@milecki.pl>
+
+properties:
+ $nodename:
+ const: '/'
+ compatible:
+ oneOf:
+ - description: BCM53573 based boards
+ items:
+ - enum:
+ - tenda,ac6-v1
+ - tenda,w15e-v1
+ - const: brcm,bcm53573
+
+ - description: BCM47189 based boards
+ items:
+ - enum:
+ - brcm,bcm947189acdbmr
+ - luxul,xap-810-v1
+ - luxul,xap-1440-v1
+ - tenda,ac9
+ - const: brcm,bcm47189
+ - const: brcm,bcm53573
+
+additionalProperties: true
+
+...
diff --git a/Documentation/devicetree/bindings/arm/bcm/brcm,bcmbca.yaml b/Documentation/devicetree/bindings/arm/bcm/brcm,bcmbca.yaml
index 07892cbdd23c..354bb1420cdd 100644
--- a/Documentation/devicetree/bindings/arm/bcm/brcm,bcmbca.yaml
+++ b/Documentation/devicetree/bindings/arm/bcm/brcm,bcmbca.yaml
@@ -34,6 +34,7 @@ properties:
- enum:
- netgear,r8000p
- tplink,archer-c2300-v1
+ - zyxel,ex3510b
- const: brcm,bcm4906
- const: brcm,bcm4908
- const: brcm,bcmbca
@@ -115,6 +116,7 @@ properties:
items:
- enum:
- brcm,bcm96846
+ - genexis,xg6846b
- const: brcm,bcm6846
- const: brcm,bcmbca
diff --git a/Documentation/devicetree/bindings/arm/bcm/raspberrypi,bcm2835-firmware.yaml b/Documentation/devicetree/bindings/arm/bcm/raspberrypi,bcm2835-firmware.yaml
index 39e3c248f5b7..8349c0a854d9 100644
--- a/Documentation/devicetree/bindings/arm/bcm/raspberrypi,bcm2835-firmware.yaml
+++ b/Documentation/devicetree/bindings/arm/bcm/raspberrypi,bcm2835-firmware.yaml
@@ -46,6 +46,30 @@ properties:
- compatible
- "#clock-cells"
+ gpio:
+ type: object
+ additionalProperties: false
+
+ properties:
+ compatible:
+ const: raspberrypi,firmware-gpio
+
+ gpio-controller: true
+
+ "#gpio-cells":
+ const: 2
+ description:
+ The first cell is the pin number, and the second cell is used to
+ specify the gpio polarity (GPIO_ACTIVE_HIGH or GPIO_ACTIVE_LOW).
+
+ gpio-line-names:
+ minItems: 8
+
+ required:
+ - compatible
+ - gpio-controller
+ - "#gpio-cells"
+
reset:
type: object
additionalProperties: false
@@ -79,6 +103,28 @@ properties:
- compatible
- "#pwm-cells"
+ touchscreen:
+ type: object
+ $ref: /schemas/input/touchscreen/touchscreen.yaml#
+ additionalProperties: false
+
+ properties:
+ compatible:
+ const: raspberrypi,firmware-ts
+
+ firmware:
+ deprecated: true
+ description: Phandle to RPi's firmware device node.
+
+ touchscreen-size-x: true
+ touchscreen-size-y: true
+ touchscreen-inverted-x: true
+ touchscreen-inverted-y: true
+ touchscreen-swapped-x-y: true
+
+ required:
+ - compatible
+
required:
- compatible
- mboxes
@@ -96,6 +142,12 @@ examples:
#clock-cells = <1>;
};
+ expgpio: gpio {
+ compatible = "raspberrypi,firmware-gpio";
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
+
reset: reset {
compatible = "raspberrypi,firmware-reset";
#reset-cells = <1>;
@@ -105,5 +157,11 @@ examples:
compatible = "raspberrypi,firmware-poe-pwm";
#pwm-cells = <2>;
};
+
+ ts: touchscreen {
+ compatible = "raspberrypi,firmware-ts";
+ touchscreen-size-x = <800>;
+ touchscreen-size-y = <480>;
+ };
};
...
diff --git a/Documentation/devicetree/bindings/arm/blaize.yaml b/Documentation/devicetree/bindings/arm/blaize.yaml
new file mode 100644
index 000000000000..af39e2756407
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/blaize.yaml
@@ -0,0 +1,40 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/blaize.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Blaize Platforms
+
+maintainers:
+ - James Cowgill <james.cowgill@blaize.com>
+ - Matt Redfearn <matt.redfearn@blaize.com>
+ - Neil Jones <neil.jones@blaize.com>
+ - Nikolaos Pasaloukos <nikolaos.pasaloukos@blaize.com>
+
+description: |
+ Blaize Platforms using SoCs designed by Blaize Inc.
+
+ The products based on the BLZP1600 SoC:
+
+ - BLZP1600-SoM: SoM (System on Module)
+ - BLZP1600-CB2: Development board CB2 based on BLZP1600-SoM
+
+ BLZP1600 SoC integrates a dual core ARM Cortex A53 cluster
+ and a Blaize Graph Streaming Processor for AI and ML workloads,
+ plus a suite of connectivity and other peripherals.
+
+properties:
+ $nodename:
+ const: '/'
+ compatible:
+ oneOf:
+ - description: Blaize BLZP1600 based boards
+ items:
+ - enum:
+ - blaize,blzp1600-cb2
+ - const: blaize,blzp1600
+
+additionalProperties: true
+
+...
diff --git a/Documentation/devicetree/bindings/arm/bst.yaml b/Documentation/devicetree/bindings/arm/bst.yaml
new file mode 100644
index 000000000000..a3a7f424fd57
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/bst.yaml
@@ -0,0 +1,31 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/bst.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: BST platforms
+
+description:
+ Black Sesame Technologies (BST) is a semiconductor company that produces
+ automotive-grade system-on-chips (SoCs) for intelligent driving, focusing
+ on computer vision and AI capabilities. The BST C1200 family includes SoCs
+ for ADAS (Advanced Driver Assistance Systems) and autonomous driving
+ applications.
+
+maintainers:
+ - Ge Gordon <gordon.ge@bst.ai>
+
+properties:
+ $nodename:
+ const: '/'
+ compatible:
+ oneOf:
+ - description: BST C1200 CDCU1.0 ADAS 4C2G board
+ items:
+ - const: bst,c1200-cdcu1.0-adas-4c2g
+ - const: bst,c1200
+
+additionalProperties: true
+
+...
diff --git a/Documentation/devicetree/bindings/arm/calxeda/l2ecc.yaml b/Documentation/devicetree/bindings/arm/calxeda/l2ecc.yaml
index a9fe01238a88..76b65ea149b6 100644
--- a/Documentation/devicetree/bindings/arm/calxeda/l2ecc.yaml
+++ b/Documentation/devicetree/bindings/arm/calxeda/l2ecc.yaml
@@ -16,7 +16,7 @@ maintainers:
properties:
compatible:
- const: "calxeda,hb-sregs-l2-ecc"
+ const: calxeda,hb-sregs-l2-ecc
reg:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/arm/cavium,thunder-88xx.yaml b/Documentation/devicetree/bindings/arm/cavium,thunder-88xx.yaml
new file mode 100644
index 000000000000..d7c813118c1c
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/cavium,thunder-88xx.yaml
@@ -0,0 +1,19 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/cavium,thunder-88xx.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cavium Thunder 88xx SoC
+
+maintainers:
+ - Robert Richter <rric@kernel.org>
+
+properties:
+ $nodename:
+ const: '/'
+ compatible:
+ items:
+ - const: cavium,thunder-88xx
+
+additionalProperties: true
diff --git a/Documentation/devicetree/bindings/arm/cavium-thunder.txt b/Documentation/devicetree/bindings/arm/cavium-thunder.txt
deleted file mode 100644
index 6f63a5866902..000000000000
--- a/Documentation/devicetree/bindings/arm/cavium-thunder.txt
+++ /dev/null
@@ -1,10 +0,0 @@
-Cavium Thunder platform device tree bindings
---------------------------------------------
-
-Boards with Cavium's Thunder SoC shall have following properties.
-
-Root Node
----------
-Required root node properties:
-
- - compatible = "cavium,thunder-88xx";
diff --git a/Documentation/devicetree/bindings/arm/cavium-thunder2.txt b/Documentation/devicetree/bindings/arm/cavium-thunder2.txt
deleted file mode 100644
index dc5dd65cbce7..000000000000
--- a/Documentation/devicetree/bindings/arm/cavium-thunder2.txt
+++ /dev/null
@@ -1,8 +0,0 @@
-Cavium ThunderX2 CN99XX platform tree bindings
-----------------------------------------------
-
-Boards with Cavium ThunderX2 CN99XX SoC shall have the root property:
- compatible = "cavium,thunderx2-cn9900", "brcm,vulcan-soc";
-
-These SoC uses the "cavium,thunder2" core which will be compatible
-with "brcm,vulcan".
diff --git a/Documentation/devicetree/bindings/arm/cirrus/cirrus,ep9301.yaml b/Documentation/devicetree/bindings/arm/cirrus/cirrus,ep9301.yaml
new file mode 100644
index 000000000000..170aad5dd7ed
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/cirrus/cirrus,ep9301.yaml
@@ -0,0 +1,38 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/cirrus/cirrus,ep9301.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cirrus Logic EP93xx platforms
+
+description:
+ The EP93xx SoC is a ARMv4T-based with 200 MHz ARM9 CPU.
+
+maintainers:
+ - Alexander Sverdlin <alexander.sverdlin@gmail.com>
+ - Nikita Shubin <nikita.shubin@maquefel.me>
+
+properties:
+ $nodename:
+ const: '/'
+ compatible:
+ oneOf:
+ - description: The TS-7250 is a compact, full-featured Single Board
+ Computer (SBC) based upon the Cirrus EP9302 ARM9 CPU
+ items:
+ - const: technologic,ts7250
+ - const: cirrus,ep9301
+
+ - description: The Liebherr BK3 is a derivate from ts7250 board
+ items:
+ - const: liebherr,bk3
+ - const: cirrus,ep9301
+
+ - description: EDB302 is an evaluation board by Cirrus Logic,
+ based on a Cirrus Logic EP9302 CPU
+ items:
+ - const: cirrus,edb9302
+ - const: cirrus,ep9301
+
+additionalProperties: true
diff --git a/Documentation/devicetree/bindings/arm/cix.yaml b/Documentation/devicetree/bindings/arm/cix.yaml
new file mode 100644
index 000000000000..114dab4bc4d2
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/cix.yaml
@@ -0,0 +1,26 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/cix.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: CIX platforms
+
+maintainers:
+ - Peter Chen <peter.chen@cixtech.com>
+ - Fugang Duan <fugang.duan@cixtech.com>
+
+properties:
+ $nodename:
+ const: '/'
+ compatible:
+ oneOf:
+
+ - description: Radxa Orion O6
+ items:
+ - const: radxa,orion-o6
+ - const: cix,sky1
+
+additionalProperties: true
+
+...
diff --git a/Documentation/devicetree/bindings/arm/cpu-enable-method/al,alpine-smp b/Documentation/devicetree/bindings/arm/cpu-enable-method/al,alpine-smp
index 35e5afb6d9ad..cc7b1402a31f 100644
--- a/Documentation/devicetree/bindings/arm/cpu-enable-method/al,alpine-smp
+++ b/Documentation/devicetree/bindings/arm/cpu-enable-method/al,alpine-smp
@@ -27,16 +27,6 @@ Properties:
- reg : Offset and length of the register set for the device
-* Alpine System-Fabric Service Registers
-
-The System-Fabric Service Registers allow various operation on CPU and
-system fabric, like powering CPUs off.
-
-Properties:
-- compatible : Should contain "al,alpine-sysfabric-service" and "syscon".
-- reg : Offset and length of the register set for the device
-
-
Example:
cpus {
diff --git a/Documentation/devicetree/bindings/arm/cpus.yaml b/Documentation/devicetree/bindings/arm/cpus.yaml
index ff272e517d57..736b7ab1bd0a 100644
--- a/Documentation/devicetree/bindings/arm/cpus.yaml
+++ b/Documentation/devicetree/bindings/arm/cpus.yaml
@@ -10,9 +10,9 @@ maintainers:
- Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
description: |+
- The device tree allows to describe the layout of CPUs in a system through
- the "cpus" node, which in turn contains a number of subnodes (ie "cpu")
- defining properties for every cpu.
+ The device tree allows to describe the layout of CPUs in a system through the
+ "cpus" node, which in turn contains a number of subnodes (ie "cpu") defining
+ properties for every cpu.
Bindings for CPU nodes follow the Devicetree Specification, available from:
@@ -41,54 +41,57 @@ description: |+
properties:
reg:
maxItems: 1
- description: |
- Usage and definition depend on ARM architecture version and
- configuration:
+ description: >
+ Usage and definition depend on ARM architecture version and configuration:
- On uniprocessor ARM architectures previous to v7
- this property is required and must be set to 0.
+ On uniprocessor ARM architectures previous to v7 this property is required
+ and must be set to 0.
- On ARM 11 MPcore based systems this property is
- required and matches the CPUID[11:0] register bits.
+ On ARM 11 MPcore based systems this property is required and matches the
+ CPUID[11:0] register bits.
- Bits [11:0] in the reg cell must be set to
- bits [11:0] in CPU ID register.
+ Bits [11:0] in the reg cell must be set to bits [11:0] in CPU ID register.
All other bits in the reg cell must be set to 0.
- On 32-bit ARM v7 or later systems this property is
- required and matches the CPU MPIDR[23:0] register
- bits.
+ On 32-bit ARM v7 or later systems this property is required and matches
+ the CPU MPIDR[23:0] register bits.
- Bits [23:0] in the reg cell must be set to
- bits [23:0] in MPIDR.
+ Bits [23:0] in the reg cell must be set to bits [23:0] in MPIDR.
All other bits in the reg cell must be set to 0.
- On ARM v8 64-bit systems this property is required
- and matches the MPIDR_EL1 register affinity bits.
+ On ARM v8 64-bit systems this property is required and matches the
+ MPIDR_EL1 register affinity bits.
* If cpus node's #address-cells property is set to 2
- The first reg cell bits [7:0] must be set to
- bits [39:32] of MPIDR_EL1.
+ The first reg cell bits [7:0] must be set to bits [39:32] of
+ MPIDR_EL1.
- The second reg cell bits [23:0] must be set to
- bits [23:0] of MPIDR_EL1.
+ The second reg cell bits [23:0] must be set to bits [23:0] of
+ MPIDR_EL1.
* If cpus node's #address-cells property is set to 1
- The reg cell bits [23:0] must be set to bits [23:0]
- of MPIDR_EL1.
+ The reg cell bits [23:0] must be set to bits [23:0] of MPIDR_EL1.
All other bits in the reg cells must be set to 0.
compatible:
enum:
+ - apm,potenza
+ - apm,strega
- apple,avalanche
- apple,blizzard
- - apple,icestorm
+ - apple,cyclone
- apple,firestorm
+ - apple,hurricane-zephyr
+ - apple,icestorm
+ - apple,mistral
+ - apple,monsoon
+ - apple,twister
+ - apple,typhoon
- arm,arm710t
- arm,arm720t
- arm,arm740t
@@ -120,6 +123,10 @@ properties:
- arm,arm1176jzf-s
- arm,arm11mpcore
- arm,armv8 # Only for s/w models
+ - arm,c1-nano
+ - arm,c1-premium
+ - arm,c1-pro
+ - arm,c1-ultra
- arm,cortex-a5
- arm,cortex-a7
- arm,cortex-a8
@@ -142,9 +149,15 @@ properties:
- arm,cortex-a78
- arm,cortex-a78ae
- arm,cortex-a78c
+ - arm,cortex-a320
- arm,cortex-a510
+ - arm,cortex-a520
+ - arm,cortex-a520ae
- arm,cortex-a710
- arm,cortex-a715
+ - arm,cortex-a720
+ - arm,cortex-a720ae
+ - arm,cortex-a725
- arm,cortex-m0
- arm,cortex-m0+
- arm,cortex-m1
@@ -153,14 +166,22 @@ properties:
- arm,cortex-r4
- arm,cortex-r5
- arm,cortex-r7
+ - arm,cortex-r52
- arm,cortex-x1
- arm,cortex-x1c
- arm,cortex-x2
- arm,cortex-x3
+ - arm,cortex-x4
+ - arm,cortex-x925
- arm,neoverse-e1
- arm,neoverse-n1
- arm,neoverse-n2
+ - arm,neoverse-n3
- arm,neoverse-v1
+ - arm,neoverse-v2
+ - arm,neoverse-v3
+ - arm,neoverse-v3ae
+ - arm,rainier
- brcm,brahma-b15
- brcm,brahma-b53
- brcm,vulcan
@@ -186,17 +207,24 @@ properties:
- qcom,kryo280
- qcom,kryo360
- qcom,kryo385
+ - qcom,kryo465
- qcom,kryo468
+ - qcom,kryo470
- qcom,kryo485
- qcom,kryo560
- qcom,kryo570
- qcom,kryo660
+ - qcom,kryo670
- qcom,kryo685
- qcom,kryo780
+ - qcom,oryon
- qcom,scorpion
+ - samsung,mongoose-m2
+ - samsung,mongoose-m3
+ - samsung,mongoose-m5
enable-method:
- $ref: '/schemas/types.yaml#/definitions/string'
+ $ref: /schemas/types.yaml#/definitions/string
oneOf:
# On ARM v8 64-bit this property is required
- enum:
@@ -245,106 +273,150 @@ properties:
cpu-release-addr:
oneOf:
- - $ref: '/schemas/types.yaml#/definitions/uint32'
- - $ref: '/schemas/types.yaml#/definitions/uint64'
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ - $ref: /schemas/types.yaml#/definitions/uint64
description:
The DT specification defines this as 64-bit always, but some 32-bit Arm
systems have used a 32-bit value which must be supported.
- Required for systems that have an "enable-method"
- property value of "spin-table".
cpu-idle-states:
- $ref: '/schemas/types.yaml#/definitions/phandle-array'
+ $ref: /schemas/types.yaml#/definitions/phandle-array
items:
maxItems: 1
- description: |
- List of phandles to idle state nodes supported
- by this cpu (see ./idle-states.yaml).
+ description:
+ List of phandles to idle state nodes supported by this cpu (see
+ ./idle-states.yaml).
capacity-dmips-mhz:
description:
u32 value representing CPU capacity (see ../cpu/cpu-capacity.txt) in
- DMIPS/MHz, relative to highest capacity-dmips-mhz
- in the system.
+ DMIPS/MHz, relative to highest capacity-dmips-mhz in the system.
cci-control-port: true
dynamic-power-coefficient:
- $ref: '/schemas/types.yaml#/definitions/uint32'
- description:
- A u32 value that represents the running time dynamic
- power coefficient in units of uW/MHz/V^2. The
- coefficient can either be calculated from power
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: >
+ A u32 value that represents the running time dynamic power coefficient in
+ units of uW/MHz/V^2. The coefficient can either be calculated from power
measurements or derived by analysis.
- The dynamic power consumption of the CPU is
- proportional to the square of the Voltage (V) and
- the clock frequency (f). The coefficient is used to
+ The dynamic power consumption of the CPU is proportional to the square of
+ the Voltage (V) and the clock frequency (f). The coefficient is used to
calculate the dynamic power as below -
Pdyn = dynamic-power-coefficient * V^2 * f
where voltage is in V, frequency is in MHz.
+ interconnects:
+ minItems: 1
+ maxItems: 3
+
+ nvmem-cells:
+ maxItems: 1
+
+ nvmem-cell-names:
+ const: speed_grade
+
performance-domains:
maxItems: 1
- description:
- List of phandles and performance domain specifiers, as defined by
- bindings of the performance domain provider. See also
- dvfs/performance-domain.yaml.
power-domains:
- description:
- List of phandles and PM domain specifiers, as defined by bindings of the
- PM domain provider (see also ../power_domain.txt).
+ minItems: 1
+ maxItems: 2
power-domain-names:
description:
- A list of power domain name strings sorted in the same order as the
- power-domains property.
-
For PSCI based platforms, the name corresponding to the index of the PSCI
- PM domain provider, must be "psci".
+ PM domain provider, must be "psci". For SCMI based platforms, the name
+ corresponding to the index of an SCMI performance domain provider, must be
+ "perf".
+ minItems: 1
+ maxItems: 2
+ items:
+ enum: [ psci, perf, cpr ]
- qcom,saw:
- $ref: '/schemas/types.yaml#/definitions/phandle'
- description: |
- Specifies the SAW* node associated with this CPU.
+ resets:
+ maxItems: 1
- Required for systems that have an "enable-method" property
- value of "qcom,kpss-acc-v1" or "qcom,kpss-acc-v2"
+ arm-supply:
+ deprecated: true
+ description: Use 'cpu-supply' instead
- * arm/msm/qcom,saw2.txt
+ cpu0-supply:
+ deprecated: true
+ description: Use 'cpu-supply' instead
- qcom,acc:
- $ref: '/schemas/types.yaml#/definitions/phandle'
- description: |
- Specifies the ACC* node associated with this CPU.
+ mem-supply: true
+
+ proc-supply:
+ deprecated: true
+ description: Use 'cpu-supply' instead
+
+ pu-supply:
+ deprecated: true
+ description: Only for i.MX6Q/DL/SL SoCs.
- Required for systems that have an "enable-method" property
- value of "qcom,kpss-acc-v1", "qcom,kpss-acc-v2", "qcom,msm8226-smp" or
- "qcom,msm8916-smp".
+ soc-supply:
+ deprecated: true
+ description: Only for i.MX6/7 Soc.
- * arm/msm/qcom,kpss-acc.txt
+ sram-supply:
+ deprecated: true
+ description: Use 'mem-supply' instead
+
+ fsl,soc-operating-points:
+ $ref: /schemas/types.yaml#/definitions/uint32-matrix
+ description: FSL i.MX6 Soc operation-points when change cpu frequency
+ deprecated: true
+ items:
+ items:
+ - description: Frequency in kHz
+ - description: Voltage for OPP in uV
+
+ mediatek,cci:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: Link to Mediatek Cache Coherent Interconnect
+
+ edac-enabled:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ A72 CPUs support Error Detection And Correction (EDAC) on their L1 and
+ L2 caches. This flag marks this function as usable.
+
+ qcom,saw:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description:
+ Specifies the SAW node associated with this CPU.
+
+ qcom,acc:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description:
+ Specifies the ACC node associated with this CPU.
+
+ qcom,freq-domain:
+ description: Specifies the QCom CPUFREQ HW associated with the CPU.
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ maxItems: 1
rockchip,pmu:
- $ref: '/schemas/types.yaml#/definitions/phandle'
- description: |
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: >
Specifies the syscon node controlling the cpu core power domains.
- Optional for systems that have an "enable-method"
- property value of "rockchip,rk3066-smp"
- While optional, it is the preferred way to get access to
- the cpu-core power-domains.
+ Optional for systems that have an "enable-method" property value of
+ "rockchip,rk3066-smp". While optional, it is the preferred way to get
+ access to the cpu-core power-domains.
secondary-boot-reg:
- $ref: '/schemas/types.yaml#/definitions/uint32'
- description: |
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: >
Required for systems that have an "enable-method" property value of
"brcm,bcm11351-cpu-method", "brcm,bcm23550" or "brcm,bcm-nsp-smp".
- This includes the following SoCs: |
- BCM11130, BCM11140, BCM11351, BCM28145, BCM28155, BCM21664, BCM23550
+ This includes the following SoCs:
+ BCM11130, BCM11140, BCM11351, BCM28145, BCM28155, BCM21664, BCM23550,
BCM58522, BCM58525, BCM58535, BCM58622, BCM58623, BCM58625, BCM88312
The secondary-boot-reg property is a u32 value that specifies the
@@ -353,22 +425,77 @@ properties:
formed by encoding the target CPU id into the low bits of the
physical start address it should jump to.
-if:
- # If the enable-method property contains one of those values
- properties:
- enable-method:
- contains:
- enum:
- - brcm,bcm11351-cpu-method
- - brcm,bcm23550
- - brcm,bcm-nsp-smp
- # and if enable-method is present
- required:
- - enable-method
-
-then:
- required:
- - secondary-boot-reg
+ thermal-idle:
+ type: object
+
+allOf:
+ - $ref: /schemas/cpu.yaml#
+ - $ref: /schemas/opp/opp-v1.yaml#
+ - if:
+ not:
+ properties:
+ compatible:
+ contains:
+ const: arm,cortex-a72
+ then:
+ # Allow edac-enabled only for Cortex A72
+ properties:
+ edac-enabled: false
+
+ - if:
+ # If the enable-method property contains one of those values
+ properties:
+ enable-method:
+ contains:
+ enum:
+ - brcm,bcm11351-cpu-method
+ - brcm,bcm23550
+ - brcm,bcm-nsp-smp
+ # and if enable-method is present
+ required:
+ - enable-method
+ then:
+ required:
+ - secondary-boot-reg
+ - if:
+ properties:
+ enable-method:
+ enum:
+ - spin-table
+ - renesas,r9a06g032-smp
+ required:
+ - enable-method
+ then:
+ required:
+ - cpu-release-addr
+ - if:
+ properties:
+ enable-method:
+ enum:
+ - qcom,kpss-acc-v1
+ - qcom,kpss-acc-v2
+ - qcom,msm8226-smp
+ - qcom,msm8916-smp
+ required:
+ - enable-method
+ then:
+ required:
+ - qcom,acc
+ - qcom,saw
+ else:
+ if:
+ # 2 Qualcomm platforms bootloaders need qcom,acc and qcom,saw yet use
+ # "spin-table" or "psci" enable-methods. Disallowing the properties for
+ # all other CPUs is the best we can do as there's not any way to
+ # distinguish these Qualcomm platforms.
+ not:
+ properties:
+ compatible:
+ const: arm,cortex-a53
+ then:
+ properties:
+ qcom,acc: false
+ qcom,saw: false
required:
- device_type
@@ -378,7 +505,7 @@ required:
dependencies:
rockchip,pmu: [enable-method]
-additionalProperties: true
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/arm/firmware/tlm,trusted-foundations.yaml b/Documentation/devicetree/bindings/arm/firmware/tlm,trusted-foundations.yaml
index 9d1857c0aa07..e3980b659f63 100644
--- a/Documentation/devicetree/bindings/arm/firmware/tlm,trusted-foundations.yaml
+++ b/Documentation/devicetree/bindings/arm/firmware/tlm,trusted-foundations.yaml
@@ -1,8 +1,8 @@
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/arm/firmware/tlm,trusted-foundations.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/arm/firmware/tlm,trusted-foundations.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Trusted Foundations
diff --git a/Documentation/devicetree/bindings/arm/freescale/fsl,imx51-m4if.yaml b/Documentation/devicetree/bindings/arm/freescale/fsl,imx51-m4if.yaml
new file mode 100644
index 000000000000..1f515bea3959
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/freescale/fsl,imx51-m4if.yaml
@@ -0,0 +1,41 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/freescale/fsl,imx51-m4if.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale Multi Master Multi Memory Interface (M4IF) and Tigerp module
+
+description: collect the imx devices, which only have compatible and reg property
+
+maintainers:
+ - Frank Li <Frank.Li@nxp.com>
+
+properties:
+ compatible:
+ oneOf:
+ - enum:
+ - fsl,imx51-m4if
+ - fsl,imx51-tigerp
+ - fsl,imx51-aipstz
+ - fsl,imx53-aipstz
+ - fsl,imx7d-pcie-phy
+ - items:
+ - const: fsl,imx53-tigerp
+ - const: fsl,imx51-tigerp
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ m4if@83fd8000 {
+ compatible = "fsl,imx51-m4if";
+ reg = <0x83fd8000 0x1000>;
+ };
diff --git a/Documentation/devicetree/bindings/arm/freescale/fsl,imx7ulp-pm.yaml b/Documentation/devicetree/bindings/arm/freescale/fsl,imx7ulp-pm.yaml
index 3b26040f8f18..9d377e193c12 100644
--- a/Documentation/devicetree/bindings/arm/freescale/fsl,imx7ulp-pm.yaml
+++ b/Documentation/devicetree/bindings/arm/freescale/fsl,imx7ulp-pm.yaml
@@ -28,6 +28,14 @@ properties:
reg:
maxItems: 1
+ clocks:
+ maxItems: 2
+
+ clock-names:
+ items:
+ - const: divcore
+ - const: hsrun_divcore
+
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/arm/freescale/fsl,imx7ulp-sim.yaml b/Documentation/devicetree/bindings/arm/freescale/fsl,imx7ulp-sim.yaml
index 526f508cb98d..bd39cf107f3e 100644
--- a/Documentation/devicetree/bindings/arm/freescale/fsl,imx7ulp-sim.yaml
+++ b/Documentation/devicetree/bindings/arm/freescale/fsl,imx7ulp-sim.yaml
@@ -7,7 +7,9 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Freescale i.MX7ULP System Integration Module
maintainers:
- - Anson Huang <anson.huang@nxp.com>
+ - Shawn Guo <shawnguo@kernel.org>
+ - Sascha Hauer <s.hauer@pengutronix.de>
+ - Fabio Estevam <festevam@gmail.com>
description: |
The system integration module (SIM) provides system control and chip configuration
diff --git a/Documentation/devicetree/bindings/arm/freescale/fsl,vf610-mscm-cpucfg.txt b/Documentation/devicetree/bindings/arm/freescale/fsl,vf610-mscm-cpucfg.txt
deleted file mode 100644
index 44aa3c451ccf..000000000000
--- a/Documentation/devicetree/bindings/arm/freescale/fsl,vf610-mscm-cpucfg.txt
+++ /dev/null
@@ -1,14 +0,0 @@
-Freescale Vybrid Miscellaneous System Control - CPU Configuration
-
-The MSCM IP contains multiple sub modules, this binding describes the first
-block of registers which contains CPU configuration information.
-
-Required properties:
-- compatible: "fsl,vf610-mscm-cpucfg", "syscon"
-- reg: the register range of the MSCM CPU configuration registers
-
-Example:
- mscm_cpucfg: cpucfg@40001000 {
- compatible = "fsl,vf610-mscm-cpucfg", "syscon";
- reg = <0x40001000 0x800>;
- }
diff --git a/Documentation/devicetree/bindings/arm/freescale/fsl,vf610-mscm-ir.txt b/Documentation/devicetree/bindings/arm/freescale/fsl,vf610-mscm-ir.txt
deleted file mode 100644
index 6dd6f399236d..000000000000
--- a/Documentation/devicetree/bindings/arm/freescale/fsl,vf610-mscm-ir.txt
+++ /dev/null
@@ -1,30 +0,0 @@
-Freescale Vybrid Miscellaneous System Control - Interrupt Router
-
-The MSCM IP contains multiple sub modules, this binding describes the second
-block of registers which control the interrupt router. The interrupt router
-allows to configure the recipient of each peripheral interrupt. Furthermore
-it controls the directed processor interrupts. The module is available in all
-Vybrid SoC's but is only really useful in dual core configurations (VF6xx
-which comes with a Cortex-A5/Cortex-M4 combination).
-
-Required properties:
-- compatible: "fsl,vf610-mscm-ir"
-- reg: the register range of the MSCM Interrupt Router
-- fsl,cpucfg: The handle to the MSCM CPU configuration node, required
- to get the current CPU ID
-- interrupt-controller: Identifies the node as an interrupt controller
-- #interrupt-cells: Two cells, interrupt number and cells.
- The hardware interrupt number according to interrupt
- assignment of the interrupt router is required.
- Flags get passed only when using GIC as parent. Flags
- encoding as documented by the GIC bindings.
-
-Example:
- mscm_ir: interrupt-controller@40001800 {
- compatible = "fsl,vf610-mscm-ir";
- reg = <0x40001800 0x400>;
- fsl,cpucfg = <&mscm_cpucfg>;
- interrupt-controller;
- #interrupt-cells = <2>;
- interrupt-parent = <&intc>;
- }
diff --git a/Documentation/devicetree/bindings/arm/freescale/m4if.txt b/Documentation/devicetree/bindings/arm/freescale/m4if.txt
deleted file mode 100644
index 93bd7b867a53..000000000000
--- a/Documentation/devicetree/bindings/arm/freescale/m4if.txt
+++ /dev/null
@@ -1,12 +0,0 @@
-* Freescale Multi Master Multi Memory Interface (M4IF) module
-
-Required properties:
-- compatible : Should be "fsl,imx51-m4if"
-- reg : Address and length of the register set for the device
-
-Example:
-
-m4if: m4if@83fd8000 {
- compatible = "fsl,imx51-m4if";
- reg = <0x83fd8000 0x1000>;
-};
diff --git a/Documentation/devicetree/bindings/arm/freescale/tigerp.txt b/Documentation/devicetree/bindings/arm/freescale/tigerp.txt
deleted file mode 100644
index 19e2aad63d6e..000000000000
--- a/Documentation/devicetree/bindings/arm/freescale/tigerp.txt
+++ /dev/null
@@ -1,12 +0,0 @@
-* Freescale Tigerp platform module
-
-Required properties:
-- compatible : Should be "fsl,imx51-tigerp"
-- reg : Address and length of the register set for the device
-
-Example:
-
-tigerp: tigerp@83fa0000 {
- compatible = "fsl,imx51-tigerp";
- reg = <0x83fa0000 0x28>;
-};
diff --git a/Documentation/devicetree/bindings/arm/fsl.yaml b/Documentation/devicetree/bindings/arm/fsl.yaml
index 15d411084065..68a2d5fecc43 100644
--- a/Documentation/devicetree/bindings/arm/fsl.yaml
+++ b/Documentation/devicetree/bindings/arm/fsl.yaml
@@ -8,7 +8,6 @@ title: Freescale i.MX Platforms
maintainers:
- Shawn Guo <shawnguo@kernel.org>
- - Li Yang <leoyang.li@nxp.com>
properties:
$nodename:
@@ -25,8 +24,11 @@ properties:
- description: i.MX23 based Boards
items:
- enum:
+ - creative,x-fi3
- fsl,imx23-evk
+ - fsl,stmp378x-devb
- olimex,imx23-olinuxino
+ - sandisk,sansa_fuze_plus
- const: fsl,imx23
- description: i.MX25 Product Development Kit
@@ -87,6 +89,7 @@ properties:
- description: i.MX28 based Boards
items:
- enum:
+ - amarula,imx28-rmm
- armadeus,imx28-apf28 # APF28 SoM
- bluegiga,apx4devkit # Bluegiga APx4 SoM on dev board
- crystalfontz,cfa10036 # Crystalfontz CFA-10036 SoM
@@ -95,6 +98,7 @@ properties:
- i2se,duckbill
- i2se,duckbill-2
- karo,tx28 # Ka-Ro electronics TX28 module
+ - lwn,imx28-btt3
- lwn,imx28-xea
- msr,m28cu3 # M28 SoM with custom base board
- schulercontrol,imx28-sps1
@@ -294,7 +298,6 @@ properties:
- technexion,imx6q-pico-pi # TechNexion i.MX6Q Pico-Pi
- technologic,imx6q-ts4900
- technologic,imx6q-ts7970
- - toradex,apalis_imx6q # Apalis iMX6 Modules
- udoo,imx6q-udoo # Udoo i.MX6 Quad Board
- uniwest,imx6q-evi # Uniwest Evi
- variscite,dt6customboard
@@ -360,6 +363,12 @@ properties:
- const: gw,ventana
- const: fsl,imx6q
+ - description: i.MX6Q Kontron SMARC-sAMX6i on SMARC Eval Carrier 2.0
+ items:
+ - const: kontron,imx6q-samx6i-ads2
+ - const: kontron,imx6q-samx6i
+ - const: fsl,imx6q
+
- description: i.MX6Q PHYTEC phyBOARD-Mira
items:
- enum:
@@ -371,7 +380,9 @@ properties:
- description: i.MX6Q PHYTEC phyFLEX-i.MX6
items:
- - const: phytec,imx6q-pbab01 # PHYTEC phyFLEX carrier board
+ - enum:
+ - comvetia,imx6q-lxr # Comvetia LXR board
+ - phytec,imx6q-pbab01 # PHYTEC phyFLEX carrier board
- const: phytec,imx6q-pfla02 # PHYTEC phyFLEX-i.MX6 Quad
- const: fsl,imx6q
@@ -381,10 +392,17 @@ properties:
- toradex,apalis_imx6q-ixora # Apalis iMX6Q/D Module on Ixora Carrier Board
- toradex,apalis_imx6q-ixora-v1.1 # Apalis iMX6Q/D Module on Ixora V1.1 Carrier Board
- toradex,apalis_imx6q-ixora-v1.2 # Apalis iMX6Q/D Module on Ixora V1.2 Carrier Board
- - toradex,apalis_imx6q-eval # Apalis iMX6Q/D Module on Apalis Evaluation Board
+ - toradex,apalis_imx6q-eval # Apalis iMX6Q/D Module on Apalis Evaluation Board v1.0/v1.1
+ - toradex,apalis_imx6q-eval-v1.2 # Apalis iMX6Q/D Module on Apalis Evaluation Board v1.2
- const: toradex,apalis_imx6q
- const: fsl,imx6q
+ - description: i.MX6Q Variscite VAR-SOM-MX6 Boards
+ items:
+ - const: variscite,mx6customboard
+ - const: variscite,var-som-imx6q
+ - const: fsl,imx6q
+
- description: TQ-Systems TQMa6Q SoM (variant A) on MBa6x
items:
- const: tq,imx6q-mba6x-a
@@ -460,6 +478,7 @@ properties:
- prt,prtvt7 # Protonic VT7 board
- rex,imx6dl-rex-basic # Rex Basic i.MX6 Dual Lite Board
- riot,imx6s-riotboard # RIoTboard i.MX6S
+ - sielaff,imx6dl-board # Sielaff i.MX6 Solo Board
- skov,imx6dl-skov-revc-lt2 # SKOV IMX6 CPU SoloCore lt2
- skov,imx6dl-skov-revc-lt6 # SKOV IMX6 CPU SoloCore lt6
- solidrun,cubox-i/dl # SolidRun Cubox-i Solo/DualLite
@@ -472,7 +491,6 @@ properties:
- technexion,imx6dl-pico-pi # TechNexion i.MX6DL Pico-Pi
- technologic,imx6dl-ts4900
- technologic,imx6dl-ts7970
- - toradex,colibri_imx6dl # Colibri iMX6 Modules
- udoo,imx6dl-udoo # Udoo i.MX6 Dual-lite Board
- vdl,lanmcu # Van der Laan LANMCU board
- wand,imx6dl-wandboard # Wandboard i.MX6 Dual Lite Board
@@ -507,9 +525,11 @@ properties:
- const: dfi,fs700e-m60
- const: fsl,imx6dl
- - description: i.MX6DL DHCOM PicoITX Board
+ - description: i.MX6DL DHCOM based Boards
items:
- - const: dh,imx6dl-dhcom-picoitx
+ - enum:
+ - dh,imx6dl-dhcom-pdk2 # i.MX6DL DHCOM SoM on PDK2 board
+ - dh,imx6dl-dhcom-picoitx # i.MX6DL DHCOM SoM on PicoITX board
- const: dh,imx6dl-dhcom-som
- const: fsl,imx6dl
@@ -533,6 +553,12 @@ properties:
- const: gw,ventana
- const: fsl,imx6dl
+ - description: i.MX6DL Kontron SMARC-sAMX6i on SMARC Eval Carrier 2.0
+ items:
+ - const: kontron,imx6dl-samx6i-ads2
+ - const: kontron,imx6dl-samx6i
+ - const: fsl,imx6dl
+
- description: i.MX6DL PHYTEC phyBOARD-Mira
items:
- enum:
@@ -598,6 +624,14 @@ properties:
- kobo,librah2o
- const: fsl,imx6sll
+ - description: i.MX6SLL Kobo Clara 2e Rev. A/B
+ items:
+ - enum:
+ - kobo,clara2e-a
+ - kobo,clara2e-b
+ - const: kobo,clara2e
+ - const: fsl,imx6sll
+
- description: i.MX6SX based Boards
items:
- enum:
@@ -654,6 +688,12 @@ properties:
- const: phytec,imx6ul-pcl063 # PHYTEC phyCORE-i.MX 6UL
- const: fsl,imx6ul
+ - description: i.MX6UL Variscite VAR-SOM-MX6 Boards
+ items:
+ - const: variscite,mx6ulconcerto
+ - const: variscite,var-som-imx6ul
+ - const: fsl,imx6ul
+
- description: Kontron BL i.MX6UL (N631X S) Board
items:
- const: kontron,bl-imx6ul # Kontron BL i.MX6UL Carrier Board
@@ -696,9 +736,7 @@ properties:
- joz,jozacp # JOZ Access Point
- kontron,sl-imx6ull # Kontron SL i.MX6ULL SoM
- myir,imx6ull-mys-6ulx-eval # MYiR Tech iMX6ULL Evaluation Board
- - toradex,colibri-imx6ull # Colibri iMX6ULL Modules
- - toradex,colibri-imx6ull-emmc # Colibri iMX6ULL 1GB (eMMC) Module
- - toradex,colibri-imx6ull-wifi # Colibri iMX6ULL Wi-Fi / BT Modules
+ - uni-t,uti260b # UNI-T UTi260B Thermal Camera
- const: fsl,imx6ull
- description: i.MX6ULL Armadeus Systems OPOS6ULDev Board
@@ -726,6 +764,21 @@ properties:
- const: dh,imx6ull-dhcor-som
- const: fsl,imx6ull
+ - description: i.MX6ULL DHCOR SoM based Boards
+ items:
+ - const: marantec,imx6ull-dhcor-maveo-box
+ - const: dh,imx6ull-dhcor-som
+ - const: fsl,imx6ull
+
+ - description: i.MX6ULL Engicam MicroGEA SoM based boards
+ items:
+ - enum:
+ - engicam,microgea-imx6ull-bmm # i.MX6ULL Engicam MicroGEA BMM Board
+ - engicam,microgea-imx6ull-gtw # i.MX6ULL Engicam MicroGEA GTW Board
+ - engicam,microgea-imx6ull-rmm # i.MX6ULL Engicam MicroGEA RMM Board
+ - const: engicam,microgea-imx6ull # i.MX6ULL Engicam MicroGEA SoM
+ - const: fsl,imx6ull
+
- description: i.MX6ULL PHYTEC phyBOARD-Segin
items:
- enum:
@@ -780,19 +833,27 @@ properties:
- const: kontron,sl-imx6ull # Kontron SL i.MX6ULL SoM
- const: fsl,imx6ull
- - description: TQ Systems TQMa6ULLx SoM on MBa6ULx board
+ - description: TQ-Systems TQMa6ULLx SoM on MBa6ULx board
+ items:
+ - enum:
+ - tq,imx6ull-tqma6ull2-mba6ulx # TQMa6ULL socketable SoM with MCIMX6Y2 on MBa6ULx EVK
+ - const: tq,imx6ull-tqma6ull2 # TQMa6ULL socketable SoM with MCIMX6Y2
+ - const: fsl,imx6ull
+
+ - description: TQ-Systems TQMa6ULLxL SoM on MBa6ULx[L] board
items:
- enum:
- - tq,imx6ull-tqma6ull2-mba6ulx
- - const: tq,imx6ull-tqma6ull2 # MCIMX6Y2
+ - tq,imx6ull-tqma6ull2l-mba6ulx # TQMa6ULLxL LGA SoM with socketable Adapter on MBa6ULx EVK
+ - tq,imx6ull-tqma6ull2l-mba6ulxl # TQMa6ULLxL LGA SoM on MBa6ULxL gateway board
+ - const: tq,imx6ull-tqma6ull2l # TQMa6ULLxL LGA SoM with MCIMX6Y2
- const: fsl,imx6ull
- - description: TQ Systems TQMa6ULLxL SoM on MBa6ULx[L] board
+ - description: Seeed Stuido i.MX6ULL SoM on dev boards
items:
- enum:
- - tq,imx6ull-tqma6ull2l-mba6ulx # using LGA adapter
- - tq,imx6ull-tqma6ull2l-mba6ulxl
- - const: tq,imx6ull-tqma6ull2l # MCIMX6Y2, LGA SoM variant
+ - seeed,imx6ull-seeed-npi-emmc
+ - seeed,imx6ull-seeed-npi-nand
+ - const: seeed,imx6ull-seeed-npi
- const: fsl,imx6ull
- description: i.MX6ULZ based Boards
@@ -842,8 +903,6 @@ properties:
- technexion,imx7d-pico-hobbit # TechNexion i.MX7D Pico-Hobbit
- technexion,imx7d-pico-nymph # TechNexion i.MX7D Pico-Nymph
- technexion,imx7d-pico-pi # TechNexion i.MX7D Pico-Pi
- - toradex,colibri-imx7d # Colibri iMX7D Module
- - toradex,colibri-imx7d-emmc # Colibri iMX7D 1GB (eMMC) Module
- zii,imx7d-rmu2 # ZII RMU2 Board
- zii,imx7d-rpu2 # ZII RPU2 Board
- const: fsl,imx7d
@@ -901,6 +960,8 @@ properties:
- emtrion,emcon-mx8mm-avari # emCON-MX8MM SoM on Avari Base
- fsl,imx8mm-ddr4-evk # i.MX8MM DDR4 EVK Board
- fsl,imx8mm-evk # i.MX8MM EVK Board
+ - fsl,imx8mm-evkb # i.MX8MM EVKB Board
+ - gateworks,imx8mm-gw75xx-0x # i.MX8MM Gateworks Board
- gateworks,imx8mm-gw7904
- gw,imx8mm-gw71xx-0x # i.MX8MM Gateworks Development Kit
- gw,imx8mm-gw72xx-0x # i.MX8MM Gateworks Development Kit
@@ -911,13 +972,22 @@ properties:
- innocomm,wb15-evk # i.MX8MM Innocomm EVK board with WB15 SoM
- kontron,imx8mm-sl # i.MX8MM Kontron SL (N801X) SOM
- kontron,imx8mm-osm-s # i.MX8MM Kontron OSM-S (N802X) SOM
- - toradex,verdin-imx8mm # Verdin iMX8M Mini Modules
- - toradex,verdin-imx8mm-nonwifi # Verdin iMX8M Mini Modules without Wi-Fi / BT
- - toradex,verdin-imx8mm-wifi # Verdin iMX8M Mini Wi-Fi / BT Modules
- - variscite,var-som-mx8mm # i.MX8MM Variscite VAR-SOM-MX8MM module
- prt,prt8mm # i.MX8MM Protonic PRT8MM Board
- const: fsl,imx8mm
+ - description: Compulab i.MX8MM UCM SoM based boards
+ items:
+ - enum:
+ - compulab,imx8mm-iot-gateway # i.MX8MM Compulab IoT-Gateway
+ - const: compulab,imx8mm-ucm-som # i.MX8MM Compulab UCM SoM
+ - const: fsl,imx8mm
+
+ - description: Emtop i.MX8MM based Boards
+ items:
+ - const: ees,imx8mm-emtop-baseboard # i.MX8MM Emtop SoM on i.MX8M Mini Baseboard V1
+ - const: ees,imx8mm-emtop-som # i.MX8MM Emtop SOM-IMX8MMLPD4 module
+ - const: fsl,imx8mm
+
- description: Engicam i.Core MX8M Mini SoM based boards
items:
- enum:
@@ -944,6 +1014,8 @@ properties:
- menlo,mx8menlo # Verdin iMX8M Mini Module on i.MX8MM Menlo board
- toradex,verdin-imx8mm-nonwifi-dahlia # Verdin iMX8M Mini Module on Dahlia
- toradex,verdin-imx8mm-nonwifi-dev # Verdin iMX8M Mini Module on Verdin Development Board
+ - toradex,verdin-imx8mm-nonwifi-ivy # Verdin iMX8M Mini Module on Ivy
+ - toradex,verdin-imx8mm-nonwifi-mallow # Verdin iMX8M Mini Module on Mallow
- toradex,verdin-imx8mm-nonwifi-yavia # Verdin iMX8M Mini Module on Yavia
- const: toradex,verdin-imx8mm-nonwifi # Verdin iMX8M Mini Module without Wi-Fi / BT
- const: toradex,verdin-imx8mm # Verdin iMX8M Mini Module
@@ -954,6 +1026,8 @@ properties:
- enum:
- toradex,verdin-imx8mm-wifi-dahlia # Verdin iMX8M Mini Wi-Fi / BT Module on Dahlia
- toradex,verdin-imx8mm-wifi-dev # Verdin iMX8M Mini Wi-Fi / BT M. on Verdin Development B.
+ - toradex,verdin-imx8mm-wifi-ivy # Verdin iMX8M Mini Wi-Fi / BT Module on Ivy
+ - toradex,verdin-imx8mm-wifi-mallow # Verdin iMX8M Mini Wi-Fi / BT Module on Mallow
- toradex,verdin-imx8mm-wifi-yavia # Verdin iMX8M Mini Wi-Fi / BT Module on Yavia
- const: toradex,verdin-imx8mm-wifi # Verdin iMX8M Mini Wi-Fi / BT Module
- const: toradex,verdin-imx8mm # Verdin iMX8M Mini Module
@@ -961,7 +1035,9 @@ properties:
- description: PHYTEC phyCORE-i.MX8MM SoM based boards
items:
- - const: phytec,imx8mm-phyboard-polis-rdk # phyBOARD-Polis RDK
+ - enum:
+ - phytec,imx8mm-phyboard-polis-rdk # phyBOARD-Polis RDK
+ - phytec,imx8mm-phygate-tauri-l # phyGATE-Tauri-L Gateway
- const: phytec,imx8mm-phycore-som # phyCORE-i.MX8MM SoM
- const: fsl,imx8mm
@@ -997,7 +1073,10 @@ properties:
- description: Variscite VAR-SOM-MX8MN based boards
items:
- - const: variscite,var-som-mx8mn-symphony
+ - enum:
+ - dimonoff,gateway-evk # i.MX8MN Dimonoff Gateway EVK Board
+ - rve,gateway # i.MX8MN RVE Gateway Board
+ - variscite,var-som-mx8mn-symphony
- const: variscite,var-som-mx8mn
- const: fsl,imx8mn
@@ -1017,13 +1096,36 @@ properties:
- enum:
- beacon,imx8mp-beacon-kit # i.MX8MP Beacon Development Kit
- dmo,imx8mp-data-modul-edm-sbc # i.MX8MP eDM SBC
+ - emcraft,imx8mp-navqp # i.MX8MP Emcraft Systems NavQ+ Kit
- fsl,imx8mp-evk # i.MX8MP EVK Board
+ - fsl,imx8mp-evk-revb4 # i.MX8MP EVK Rev B4 Board
+ - gateworks,imx8mp-gw71xx-2x # i.MX8MP Gateworks Board
+ - gateworks,imx8mp-gw72xx-2x # i.MX8MP Gateworks Board
+ - gateworks,imx8mp-gw73xx-2x # i.MX8MP Gateworks Board
- gateworks,imx8mp-gw74xx # i.MX8MP Gateworks Board
- - polyhex,imx8mp-debix # Polyhex Debix boards
- - polyhex,imx8mp-debix-model-a # Polyhex Debix Model A Board
- - toradex,verdin-imx8mp # Verdin iMX8M Plus Modules
- - toradex,verdin-imx8mp-nonwifi # Verdin iMX8M Plus Modules without Wi-Fi / BT
- - toradex,verdin-imx8mp-wifi # Verdin iMX8M Plus Wi-Fi / BT Modules
+ - gateworks,imx8mp-gw75xx-2x # i.MX8MP Gateworks Board
+ - gateworks,imx8mp-gw82xx-2x # i.MX8MP Gateworks Board
+ - gocontroll,moduline-display # GOcontroll Moduline Display controller
+ - prt,prt8ml # Protonic PRT8ML
+ - skov,imx8mp-skov-basic # SKOV i.MX8MP baseboard without frontplate
+ - skov,imx8mp-skov-revb-hdmi # SKOV i.MX8MP climate control without panel
+ - skov,imx8mp-skov-revb-lt6 # SKOV i.MX8MP climate control with 7” panel
+ - skov,imx8mp-skov-revb-mi1010ait-1cp1 # SKOV i.MX8MP climate control with 10.1" panel
+ - skov,imx8mp-skov-revc-hdmi # SKOV i.MX8MP climate control without panel
+ - skov,imx8mp-skov-revc-bd500 # SKOV i.MX8MP climate control with LED frontplate
+ - skov,imx8mp-skov-revc-jutouch-jt101tm023 # SKOV i.MX8MP climate control with 10" JuTouch panel
+ - skov,imx8mp-skov-revc-tian-g07017 # SKOV i.MX8MP climate control with 7" panel
+ - ultratronik,imx8mp-ultra-mach-sbc # Ultratronik SBC i.MX8MP based board
+ - ysoft,imx8mp-iota2-lumpy # Y Soft i.MX8MP IOTA2 Lumpy Board
+ - const: fsl,imx8mp
+
+ - description: ABB Boards with i.MX8M Plus Modules from ADLink
+ items:
+ - enum:
+ - abb,imx8mp-aristanetos3-adpismarc # i.MX8MP ABB SoM on PI SMARC Board
+ - abb,imx8mp-aristanetos3-helios # i.MX8MP ABB SoM on helios Board
+ - abb,imx8mp-aristanetos3-proton2s # i.MX8MP ABB SoM on proton2s Board
+ - const: abb,imx8mp-aristanetos3-som # i.MX8MP ABB SoM
- const: fsl,imx8mp
- description: Avnet (MSC Branded) Boards with SM2S i.MX8M Plus Modules
@@ -1033,11 +1135,25 @@ properties:
- const: avnet,sm2s-imx8mp # SM2S-IMX8PLUS SoM
- const: fsl,imx8mp
+ - description: Boundary Devices Nitrogen8M Plus ENC Carrier Board
+ items:
+ - const: boundary,imx8mp-nitrogen-enc-carrier-board
+ - const: boundary,imx8mp-nitrogen-som
+ - const: fsl,imx8mp
+
+ - description: Boundary Device Nitrogen8MP Universal SMARC Carrier Board
+ items:
+ - const: boundary,imx8mp-nitrogen-smarc-universal-board
+ - const: boundary,imx8mp-nitrogen-smarc-som
+ - const: fsl,imx8mp
+
- description: i.MX8MP DHCOM based Boards
items:
- enum:
+ - dh,imx8mp-dhcom-drc02 # i.MX8MP DHCOM SoM on DRC02 board
- dh,imx8mp-dhcom-pdk2 # i.MX8MP DHCOM SoM on PDK2 board
- dh,imx8mp-dhcom-pdk3 # i.MX8MP DHCOM SoM on PDK3 board
+ - dh,imx8mp-dhcom-picoitx # i.MX8MP DHCOM SoM on PicoITX board
- const: dh,imx8mp-dhcom-som # i.MX8MP DHCOM SoM
- const: fsl,imx8mp
@@ -1048,17 +1164,77 @@ properties:
- const: engicam,icore-mx8mp # i.MX8MP Engicam i.Core MX8M Plus SoM
- const: fsl,imx8mp
+ - description: Kontron i.MX8MP OSM-S SoM based Boards
+ items:
+ - const: kontron,imx8mp-bl-osm-s # Kontron BL i.MX8MP OSM-S Board
+ - const: kontron,imx8mp-osm-s # Kontron i.MX8MP OSM-S SoM
+ - const: fsl,imx8mp
+
+ - description: Kontron i.MX8MP SMARC based Boards
+ items:
+ - const: kontron,imx8mp-smarc-eval-carrier # Kontron i.MX8MP SMARC Eval Carrier
+ - const: kontron,imx8mp-smarc # Kontron i.MX8MP SMARC Module
+ - const: kontron,imx8mp-osm-s # Kontron i.MX8MP OSM-S SoM
+ - const: fsl,imx8mp
+
+ - description: PHYTEC phyCORE-i.MX8MP FPSC based boards
+ items:
+ - enum:
+ - phytec,imx8mp-libra-rdk-fpsc # i.MX 8M Plus Libra RDK
+ - const: phytec,imx8mp-phycore-fpsc # phyCORE-i.MX 8M Plus FPSC
+ - const: fsl,imx8mp
+
- description: PHYTEC phyCORE-i.MX8MP SoM based boards
items:
- const: phytec,imx8mp-phyboard-pollux-rdk # phyBOARD-Pollux RDK
- const: phytec,imx8mp-phycore-som # phyCORE-i.MX8MP SoM
- const: fsl,imx8mp
+ - description: Polyhex DEBIX i.MX8MP based SBCs
+ items:
+ - enum:
+ - polyhex,imx8mp-debix-model-a # Polyhex Debix Model A Board
+ - const: polyhex,imx8mp-debix # Polyhex i.MX8MP Debix SBCs
+ - const: fsl,imx8mp
+
+ - description: Polyhex DEBIX i.MX8MP SOM A based boards
+ items:
+ - enum:
+ - polyhex,imx8mp-debix-som-a-bmb-08 # Polyhex Debix SOM A on SOM A I/O board
+ - const: polyhex,imx8mp-debix-som-a # Polyhex Debix SOM A
+ - const: fsl,imx8mp
+
+ - description: SolidRun i.MX8MP SoM based boards
+ items:
+ - enum:
+ - solidrun,imx8mp-cubox-m # SolidRun i.MX8MP SoM on CuBox-M
+ - solidrun,imx8mp-hummingboard-mate # SolidRun i.MX8MP SoM on HummingBoard Mate
+ - solidrun,imx8mp-hummingboard-pro # SolidRun i.MX8MP SoM on HummingBoard Pro
+ - solidrun,imx8mp-hummingboard-pulse # SolidRun i.MX8MP SoM on HummingBoard Pulse
+ - solidrun,imx8mp-hummingboard-ripple # SolidRun i.MX8MP SoM on HummingBoard Ripple
+ - const: solidrun,imx8mp-sr-som
+ - const: fsl,imx8mp
+
+ - description: TechNexion EDM-G-IMX8M-PLUS SoM based boards
+ items:
+ - enum:
+ - technexion,edm-g-imx8mp-wb # TechNexion EDM-G-IMX8MP SOM on WB-EDM-G
+ - const: technexion,edm-g-imx8mp # TechNexion EDM-G-IMX8MP SOM
+ - const: fsl,imx8mp
+
+ - description: Toradex Boards with SMARC iMX8M Plus Modules
+ items:
+ - const: toradex,smarc-imx8mp-dev # Toradex SMARC iMX8M Plus on Toradex SMARC Development Board
+ - const: toradex,smarc-imx8mp # Toradex SMARC iMX8M Plus Module
+ - const: fsl,imx8mp
+
- description: Toradex Boards with Verdin iMX8M Plus Modules
items:
- enum:
- toradex,verdin-imx8mp-nonwifi-dahlia # Verdin iMX8M Plus Module on Dahlia
- toradex,verdin-imx8mp-nonwifi-dev # Verdin iMX8M Plus Module on Verdin Development Board
+ - toradex,verdin-imx8mp-nonwifi-ivy # Verdin iMX8M Plus Module on Ivy
+ - toradex,verdin-imx8mp-nonwifi-mallow # Verdin iMX8M Plus Module on Mallow
- toradex,verdin-imx8mp-nonwifi-yavia # Verdin iMX8M Plus Module on Yavia
- const: toradex,verdin-imx8mp-nonwifi # Verdin iMX8M Plus Module without Wi-Fi / BT
- const: toradex,verdin-imx8mp # Verdin iMX8M Plus Module
@@ -1069,6 +1245,8 @@ properties:
- enum:
- toradex,verdin-imx8mp-wifi-dahlia # Verdin iMX8M Plus Wi-Fi / BT Module on Dahlia
- toradex,verdin-imx8mp-wifi-dev # Verdin iMX8M Plus Wi-Fi / BT M. on Verdin Development B.
+ - toradex,verdin-imx8mp-wifi-ivy # Verdin iMX8M Plus Wi-Fi / BT Module on Ivy
+ - toradex,verdin-imx8mp-wifi-mallow # Verdin iMX8M Plus Wi-Fi / BT Module on Mallow
- toradex,verdin-imx8mp-wifi-yavia # Verdin iMX8M Plus Wi-Fi / BT Module on Yavia
- const: toradex,verdin-imx8mp-wifi # Verdin iMX8M Plus Wi-Fi / BT Module
- const: toradex,verdin-imx8mp # Verdin iMX8M Plus Module
@@ -1082,8 +1260,15 @@ properties:
version as an industrial computing device.
items:
- enum:
- - tq,imx8mp-tqma8mpql-mba8mpxl # TQ-Systems GmbH i.MX8MP TQMa8MPQL SOM on MBa8MPxL
- - const: tq,imx8mp-tqma8mpql # TQ-Systems GmbH i.MX8MP TQMa8MPQL SOM
+ - tq,imx8mp-tqma8mpql-mba8mpxl # TQ-Systems GmbH i.MX8MP TQMa8MPQL SOM on MBa8MPxL
+ - tq,imx8mp-tqma8mpql-mba8mp-ras314 # TQ-Systems GmbH i.MX8MP TQMa8MPQL SOM on MBa8MP-RAS314
+ - const: tq,imx8mp-tqma8mpql # TQ-Systems GmbH i.MX8MP TQMa8MPQL SOM
+ - const: fsl,imx8mp
+
+ - description: Variscite VAR-SOM-MX8M Plus based boards
+ items:
+ - const: variscite,var-som-mx8mp-symphony
+ - const: variscite,var-som-mx8mp
- const: fsl,imx8mp
- description: i.MX8MQ based Boards
@@ -1136,14 +1321,14 @@ properties:
items:
- enum:
- fsl,imx8qm-mek # i.MX8QM MEK Board
- - toradex,apalis-imx8 # Apalis iMX8 Modules
- - toradex,apalis-imx8-v1.1 # Apalis iMX8 V1.1 Modules
+ - fsl,imx8qm-mek-revd # i.MX8QM MEK Rev D Board
- const: fsl,imx8qm
- description: i.MX8QM Boards with Toradex Apalis iMX8 Modules
items:
- enum:
- - toradex,apalis-imx8-eval # Apalis iMX8 Module on Apalis Evaluation Board
+ - toradex,apalis-imx8-eval # Apalis iMX8 Module on Apalis Evaluation V1.0/V1.1 Board
+ - toradex,apalis-imx8-eval-v1.2 # Apalis iMX8 Module on Apalis Evaluation V1.2 Board
- toradex,apalis-imx8-ixora-v1.1 # Apalis iMX8 Module on Ixora V1.1 Carrier Board
- const: toradex,apalis-imx8
- const: fsl,imx8qm
@@ -1151,7 +1336,8 @@ properties:
- description: i.MX8QM Boards with Toradex Apalis iMX8 V1.1 Modules
items:
- enum:
- - toradex,apalis-imx8-v1.1-eval # Apalis iMX8 V1.1 Module on Apalis Eval. Board
+ - toradex,apalis-imx8-v1.1-eval # Apalis iMX8 V1.1 Module on Apalis Eval. V1.0/V1.1 Board
+ - toradex,apalis-imx8-v1.1-eval-v1.2 # Apalis iMX8 V1.1 Module on Apalis Eval. V1.2 Board
- toradex,apalis-imx8-v1.1-ixora-v1.1 # Apalis iMX8 V1.1 Module on Ixora V1.1 C. Board
- toradex,apalis-imx8-v1.1-ixora-v1.2 # Apalis iMX8 V1.1 Module on Ixora V1.2 C. Board
- const: toradex,apalis-imx8-v1.1
@@ -1162,7 +1348,7 @@ properties:
- enum:
- einfochips,imx8qxp-ai_ml # i.MX8QXP AI_ML Board
- fsl,imx8qxp-mek # i.MX8QXP MEK Board
- - toradex,colibri-imx8x # Colibri iMX8X Modules
+ - fsl,imx8qxp-mek-wcpu # i.MX8QXP MEK WCPU Board
- const: fsl,imx8qxp
- description: i.MX8DXL based Boards
@@ -1171,7 +1357,7 @@ properties:
- fsl,imx8dxl-evk # i.MX8DXL EVK Board
- const: fsl,imx8dxl
- - description: i.MX8QXP Boards with Toradex Colibri iMX8X Modules
+ - description: i.MX8QXP/i.MX8DX Boards with Toradex Colibri iMX8X Modules
items:
- enum:
- toradex,colibri-imx8x-aster # Colibri iMX8X Module on Aster Board
@@ -1179,20 +1365,90 @@ properties:
- toradex,colibri-imx8x-iris # Colibri iMX8X Module on Iris Board
- toradex,colibri-imx8x-iris-v2 # Colibri iMX8X Module on Iris Board V2
- const: toradex,colibri-imx8x
- - const: fsl,imx8qxp
+ - enum:
+ - fsl,imx8qxp
+ - fsl,imx8dx
+
+ - description:
+ TQMa8Xx is a series of SOM featuring NXP i.MX8X system-on-chip
+ variants. It is designed to be clicked on different carrier boards
+ MBa8Xx is the starterkit
+ oneOf:
+ - items:
+ - enum:
+ - tq,imx8dxp-tqma8xdp-mba8xx # TQ-Systems GmbH TQMa8XDP SOM on MBa8Xx
+ - const: tq,imx8dxp-tqma8xdp # TQ-Systems GmbH TQMa8XDP SOM (with i.MX8DXP)
+ - const: fsl,imx8dxp
+ - items:
+ - enum:
+ - tq,imx8qxp-tqma8xqp-mba8xx # TQ-Systems GmbH TQMa8XQP SOM on MBa8Xx
+ - const: tq,imx8qxp-tqma8xqp # TQ-Systems GmbH TQMa8XQP SOM (with i.MX8QXP)
+ - const: fsl,imx8qxp
+
+ - description:
+ TQMa8XxS is a series of SOM featuring NXP i.MX8X system-on-chip
+ variants. It has the SMARC-2.0 form factor and is designed to be placed on
+ different carrier boards. MB-SMARC-2 is a carrier reference design.
+ oneOf:
+ - items:
+ - enum:
+ - tq,imx8qxp-tqma8xqps-mb-smarc-2 # TQ-Systems GmbH TQMa8QXPS SOM on MB-SMARC-2
+ - const: tq,imx8qxp-tqma8xqps # TQ-Systems GmbH TQMa8QXPS SOM
+ - const: fsl,imx8qxp
+ - items:
+ - enum:
+ - tq,imx8dxp-tqma8xdps-mb-smarc-2 # TQ-Systems GmbH TQMa8XDPS SOM on MB-SMARC-2
+ - const: tq,imx8dxp-tqma8xdps # TQ-Systems GmbH TQMa8XDPS SOM
+ - const: fsl,imx8dxp
- description: i.MX8ULP based Boards
items:
- enum:
+ - fsl,imx8ulp-9x9-evk # i.MX8ULP EVK9 Board
- fsl,imx8ulp-evk # i.MX8ULP EVK Board
- const: fsl,imx8ulp
+ - description: i.MX91 based Boards
+ items:
+ - enum:
+ - fsl,imx91-11x11-evk # i.MX91 11x11 EVK Board
+ - const: fsl,imx91
+
- description: i.MX93 based Boards
items:
- enum:
+ - fsl,imx93-9x9-qsb # i.MX93 9x9 QSB Board
- fsl,imx93-11x11-evk # i.MX93 11x11 EVK Board
+ - fsl,imx93-14x14-evk # i.MX93 14x14 EVK Board
- const: fsl,imx93
+ - description: i.MX94 based Boards
+ items:
+ - enum:
+ - fsl,imx943-evk # i.MX943 EVK Board
+ - const: fsl,imx94
+
+ - description: i.MX95 based Boards
+ items:
+ - enum:
+ - fsl,imx95-15x15-evk # i.MX95 15x15 EVK Board
+ - fsl,imx95-19x19-evk # i.MX95 19x19 EVK Board
+ - toradex,verdin-imx95-19x19-evk # i.MX95 Verdin Evaluation Kit (EVK)
+ - const: fsl,imx95
+
+ - description: PHYTEC i.MX 95 FPSC based Boards
+ items:
+ - enum:
+ - phytec,imx95-libra-rdk-fpsc # Libra-i.MX 95 FPSC
+ - const: phytec,imx95-phycore-fpsc # phyCORE-i.MX 95 FPSC
+ - const: fsl,imx95
+
+ - description: Toradex Boards with SMARC iMX95 Modules
+ items:
+ - const: toradex,smarc-imx95-dev # Toradex SMARC iMX95 on Toradex SMARC Development Board
+ - const: toradex,smarc-imx95 # Toradex SMARC iMX95 Module
+ - const: fsl,imx95
+
- description: i.MXRT1050 based Boards
items:
- enum:
@@ -1206,11 +1462,89 @@ properties:
- const: fsl,imxrt1170
- description:
+ TQMa91xxLA and TQMa91xxCA are two series of feature compatible SOM
+ using NXP i.MX91 SOC in 11x11 mm package.
+ TQMa91xxLA is designed to be soldered on different carrier boards.
+ TQMa91xxCA is a compatible variant using board to board connectors.
+ All SOM and CPU variants use the same device tree hence only one
+ compatible is needed. Bootloader disables all features not present
+ in the assembled SOC.
+ MBa91xxCA mainboard can be used as starterkit for the SOM
+ soldered on an adapter board or for the connector variant
+ MBa91xxLA mainboard is a single board computer using the solderable
+ SOM variant
+ items:
+ - enum:
+ - tq,imx91-tqma9131-mba91xxca # TQ-Systems GmbH i.MX91 TQMa91xxCA/LA SOM on MBa91xxCA
+ - const: tq,imx91-tqma9131 # TQ-Systems GmbH i.MX91 TQMa91xxCA/LA SOM
+ - const: fsl,imx91
+
+ - description:
+ TQMa93xxLA and TQMa93xxCA are two series of feature compatible SOM
+ using NXP i.MX93 SOC in 11x11 mm package.
+ TQMa93xxLA is designed to be soldered on different carrier boards.
+ TQMa93xxCA is a compatible variant using board to board connectors.
+ All SOM and CPU variants use the same device tree hence only one
+ compatible is needed. Bootloader disables all features not present
+ in the assembled SOC.
+ MBa91xxCA mainboard can be used as starterkit for the SOM
+ soldered on an adapter board or for the connector variant
+ to evaluate RGB display support.
+ MBa93xxCA mainboard can be used as starterkit for the SOM
+ soldered on an adapter board or for the connector variant
+ MBa93xxLA mainboard is a single board computer using the solderable
+ SOM variant
+ items:
+ - enum:
+ - tq,imx93-tqma9352-mba91xxca # TQ-Systems GmbH i.MX93 TQMa93xxCA/LA SOM on MBa91xxCA
+ - tq,imx93-tqma9352-mba93xxca # TQ-Systems GmbH i.MX93 TQMa93xxCA/LA SOM on MBa93xxCA
+ - tq,imx93-tqma9352-mba93xxla # TQ-Systems GmbH i.MX93 TQMa93xxLA SOM on MBa93xxLA SBC
+ - const: tq,imx93-tqma9352 # TQ-Systems GmbH i.MX93 TQMa93xxCA/LA SOM
+ - const: fsl,imx93
+
+ - description: PHYTEC phyCORE-i.MX91 SoM based boards
+ items:
+ - enum:
+ - phytec,imx91-phyboard-segin # phyBOARD-Segin with i.MX91
+ - const: phytec,imx91-phycore-som # phyCORE-i.MX91 SoM
+ - const: fsl,imx91
+
+ - description: PHYTEC phyCORE-i.MX93 SoM based boards
+ items:
+ - enum:
+ - phytec,imx93-phyboard-nash # phyBOARD-Nash-i.MX93
+ - phytec,imx93-phyboard-segin # phyBOARD-Segin with i.MX93
+ - const: phytec,imx93-phycore-som # phyCORE-i.MX93 SoM
+ - const: fsl,imx93
+
+ - description: Variscite VAR-SOM-MX93 based boards
+ items:
+ - const: variscite,var-som-mx93-symphony
+ - const: variscite,var-som-mx93
+ - const: fsl,imx93
+
+ - description: Kontron OSM-S i.MX93 SoM based boards
+ items:
+ - const: kontron,imx93-bl-osm-s # Kontron BL i.MX93 OSM-S board
+ - const: kontron,imx93-osm-s # Kontron OSM-S i.MX93 SoM
+ - const: fsl,imx93
+
+ - description:
+ TQMa95xxSA is a series of SOM featuring NXP i.MX95 SoC variants.
+ It has the SMARC form factor and is designed to be placed on
+ different carrier boards. MB-SMARC-2 is a carrier reference design.
+ items:
+ - enum:
+ - tq,imx95-tqma9596sa-mb-smarc-2 # TQ-Systems GmbH i.MX95 TQMa95xxSA SOM on MB-SMARC-2
+ - const: tq,imx95-tqma9596sa # TQ-Systems GmbH i.MX95 TQMa95xxSA SOM
+ - const: fsl,imx95
+
+ - description:
Freescale Vybrid Platform Device Tree Bindings
- For the Vybrid SoC familiy all variants with DDR controller are supported,
+ For the Vybrid SoC family all variants with DDR controller are supported,
which is the VF5xx and VF6xx series. Out of historical reasons, in most
- places the kernel uses vf610 to refer to the whole familiy.
+ places the kernel uses vf610 to refer to the whole family.
The compatible string "fsl,vf610m4" is used for the secondary Cortex-M4
core support.
items:
@@ -1233,7 +1567,6 @@ properties:
- fsl,vf610-twr # VF610 Tower Board
- lwn,bk4 # Liebherr BK4 controller
- phytec,vf610-cosmic # PHYTEC Cosmic/Cosmic+ Board
- - toradex,vf610-colibri_vf61 # Colibri VF61 Modules
- const: fsl,vf610
- description: Toradex Colibri VF61 Module on Colibri Evaluation Board
@@ -1265,6 +1598,12 @@ properties:
- fsl,ls1012a-qds
- const: fsl,ls1012a
+ - description: TQ Systems TQMLS12AL SoM on MBLS1012AL board
+ items:
+ - const: tq,ls1012a-tqmls1012al-mbls1012al
+ - const: tq,ls1012a-tqmls1012al
+ - const: fsl,ls1012a
+
- description: LS1021A based Boards
items:
- enum:
@@ -1275,6 +1614,16 @@ properties:
- fsl,ls1021a-twr
- const: fsl,ls1021a
+ - description:
+ TQ-Systems TQMLS102xA is a series of socketable SOM featuring
+ LS102x system-on-chip variants. MBLS102xA mainboard can be used as
+ starterkit.
+ items:
+ - enum:
+ - tq,ls1021a-tqmls1021a-mbls102xa
+ - const: tq,ls1021a-tqmls1021a
+ - const: fsl,ls1021a
+
- description: LS1028A based Boards
items:
- enum:
@@ -1330,6 +1679,13 @@ properties:
- fsl,ls1043a-qds
- const: fsl,ls1043a
+ - description: TQ-Systems LS1043A based Boards
+ items:
+ - enum:
+ - tq,ls1043a-tqmls1043a-mbls10xxa
+ - const: tq,ls1043a-tqmls1043a
+ - const: fsl,ls1043a
+
- description: LS1046A based Boards
items:
- enum:
@@ -1338,6 +1694,13 @@ properties:
- fsl,ls1046a-rdb
- const: fsl,ls1046a
+ - description: TQ-Systems LS1046A based Boards
+ items:
+ - enum:
+ - tq,ls1046a-tqmls1046a-mbls10xxa
+ - const: tq,ls1046a-tqmls1046a
+ - const: fsl,ls1046a
+
- description: LS1088A based Boards
items:
- enum:
@@ -1345,6 +1708,13 @@ properties:
- fsl,ls1088a-rdb
- const: fsl,ls1088a
+ - description: TQ-Systems LS1088A based Boards
+ items:
+ - enum:
+ - tq,ls1088a-tqmls1088a-mbls10xxa
+ - const: tq,ls1088a-tqmls1088a
+ - const: fsl,ls1088a
+
- description: LS2080A based Boards
items:
- enum:
@@ -1353,6 +1723,12 @@ properties:
- fsl,ls2080a-rdb
- const: fsl,ls2080a
+ - description: LS2081A based Boards
+ items:
+ - enum:
+ - fsl,ls2081a-rdb
+ - const: fsl,ls2081a
+
- description: LS2088A based Boards
items:
- enum:
@@ -1370,7 +1746,7 @@ properties:
- fsl,lx2162a-qds
- const: fsl,lx2160a
- - description: SolidRun LX2160A based Boards
+ - description: SolidRun LX2160A CEX-7 based Boards
items:
- enum:
- solidrun,clearfog-cx
@@ -1378,6 +1754,23 @@ properties:
- const: solidrun,lx2160a-cex7
- const: fsl,lx2160a
+ - description: SolidRun LX2162A SoM based Boards
+ items:
+ - enum:
+ - solidrun,lx2162a-clearfog
+ - const: solidrun,lx2162a-som
+ - const: fsl,lx2160a
+
+ - description:
+ TQ-Systems TQMLX2160A is a series of socketable SOM featuring
+ LX2160A system-on-chip variants. MBLX2160A mainboard can be used a
+ starterkit.
+ items:
+ - enum:
+ - tq,lx2160a-tqmlx2160a-mblx2160a
+ - const: tq,lx2160a-tqmlx2160a
+ - const: fsl,lx2160a
+
- description: S32G2 based Boards
items:
- enum:
@@ -1385,6 +1778,12 @@ properties:
- nxp,s32g274a-rdb2
- const: nxp,s32g2
+ - description: S32G3 based Boards
+ items:
+ - enum:
+ - nxp,s32g399a-rdb3
+ - const: nxp,s32g3
+
- description: S32V234 based Boards
items:
- enum:
diff --git a/Documentation/devicetree/bindings/arm/google.yaml b/Documentation/devicetree/bindings/arm/google.yaml
new file mode 100644
index 000000000000..99961e5282e5
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/google.yaml
@@ -0,0 +1,54 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/google.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Google Tensor platforms
+
+maintainers:
+ - Peter Griffin <peter.griffin@linaro.org>
+
+description: |
+ ARM platforms using SoCs designed by Google branded "Tensor" used in Pixel
+ devices.
+
+ Currently upstream this is devices using "gs101" SoC which is found in Pixel
+ 6, Pixel 6 Pro and Pixel 6a.
+
+ Google have a few different names for the SoC:
+ - Marketing name ("Tensor")
+ - Codename ("Whitechapel")
+ - SoC ID ("gs101")
+ - Die ID ("S5P9845")
+
+ Likewise there are a couple of names for the actual device
+ - Marketing name ("Pixel 6")
+ - Codename ("Oriole")
+
+ Devicetrees should use the lowercased SoC ID and lowercased board codename,
+ e.g. gs101 and gs101-oriole.
+
+properties:
+ $nodename:
+ const: '/'
+ compatible:
+ oneOf:
+ - description: Google Pixel 6 or 6 Pro (Oriole or Raven)
+ items:
+ - enum:
+ - google,gs101-oriole
+ - google,gs101-raven
+ - const: google,gs101
+
+ # Bootloader requires empty ect node to be present
+ ect:
+ type: object
+ additionalProperties: false
+
+required:
+ - ect
+
+additionalProperties: true
+
+...
diff --git a/Documentation/devicetree/bindings/arm/hisilicon/controller/cpuctrl.yaml b/Documentation/devicetree/bindings/arm/hisilicon/controller/cpuctrl.yaml
index 528dad4cde3c..4fc208d3995e 100644
--- a/Documentation/devicetree/bindings/arm/hisilicon/controller/cpuctrl.yaml
+++ b/Documentation/devicetree/bindings/arm/hisilicon/controller/cpuctrl.yaml
@@ -29,6 +29,26 @@ properties:
ranges: true
+patternProperties:
+ "^clock@[0-9a-f]+$":
+ type: object
+ additionalProperties: false
+
+ properties:
+ compatible:
+ const: hisilicon,hix5hd2-clock
+
+ reg:
+ maxItems: 1
+
+ "#clock-cells":
+ const: 1
+
+ required:
+ - compatible
+ - reg
+ - "#clock-cells"
+
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/arm/hisilicon/controller/sysctrl.yaml b/Documentation/devicetree/bindings/arm/hisilicon/controller/sysctrl.yaml
index 5a53d433b6f0..7a221e1c09df 100644
--- a/Documentation/devicetree/bindings/arm/hisilicon/controller/sysctrl.yaml
+++ b/Documentation/devicetree/bindings/arm/hisilicon/controller/sysctrl.yaml
@@ -82,6 +82,23 @@ properties:
ranges: true
+patternProperties:
+ '^clock@':
+ type: object
+ additionalProperties: false
+
+ properties:
+ compatible:
+ enum:
+ - hisilicon,hi3620-clock
+ - hisilicon,hi3620-mmc-clock
+
+ reg:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 1
+
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/arm/intel,socfpga.yaml b/Documentation/devicetree/bindings/arm/intel,socfpga.yaml
index 4b4dcf551eb6..c918837bd41c 100644
--- a/Documentation/devicetree/bindings/arm/intel,socfpga.yaml
+++ b/Documentation/devicetree/bindings/arm/intel,socfpga.yaml
@@ -21,6 +21,19 @@ properties:
- intel,socfpga-agilex-n6000
- intel,socfpga-agilex-socdk
- const: intel,socfpga-agilex
+ - description: Agilex3 boards
+ items:
+ - enum:
+ - intel,socfpga-agilex3-socdk
+ - const: intel,socfpga-agilex3
+ - const: intel,socfpga-agilex5
+ - description: Agilex5 boards
+ items:
+ - enum:
+ - intel,socfpga-agilex5-socdk
+ - intel,socfpga-agilex5-socdk-013b
+ - intel,socfpga-agilex5-socdk-nand
+ - const: intel,socfpga-agilex5
additionalProperties: true
diff --git a/Documentation/devicetree/bindings/arm/intel-ixp4xx.yaml b/Documentation/devicetree/bindings/arm/intel-ixp4xx.yaml
index 553dcbc70e35..b7b430896596 100644
--- a/Documentation/devicetree/bindings/arm/intel-ixp4xx.yaml
+++ b/Documentation/devicetree/bindings/arm/intel-ixp4xx.yaml
@@ -16,12 +16,30 @@ properties:
oneOf:
- items:
- enum:
+ - actiontec,mi424wr-ac
+ - actiontec,mi424wr-d
+ - adieng,coyote
+ - arcom,vulcan
+ - dlink,dsm-g600-a
+ - freecom,fsg-3
+ - gateway,7001
+ - gateworks,gw2348
+ - goramo,multilink-router
+ - intel,ixdp425
+ - intel,ixdpg425
+ - iom,nas-100d
- linksys,nslu2
+ - netgear,wg302v1
+ - netgear,wg302v2
+ - usr,8200
- welltech,epbx100
+ - linksys,wrv54g
+ - gemtek,gtwx5715
- const: intel,ixp42x
- items:
- enum:
- gateworks,gw2358
+ - intel,kixrp435
- const: intel,ixp43x
additionalProperties: true
diff --git a/Documentation/devicetree/bindings/arm/keystone/keystone.txt b/Documentation/devicetree/bindings/arm/keystone/keystone.txt
deleted file mode 100644
index f310bad04483..000000000000
--- a/Documentation/devicetree/bindings/arm/keystone/keystone.txt
+++ /dev/null
@@ -1,42 +0,0 @@
-TI Keystone Platforms Device Tree Bindings
------------------------------------------------
-
-Boards with Keystone2 based devices (TCI66xxK2H) SOC shall have the
-following properties.
-
-Required properties:
- - compatible: All TI specific devices present in Keystone SOC should be in
- the form "ti,keystone-*". Generic devices like gic, arch_timers, ns16550
- type UART should use the specified compatible for those devices.
-
-SoC families:
-
-- Keystone 2 generic SoC:
- compatible = "ti,keystone"
-
-SoCs:
-
-- Keystone 2 Hawking/Kepler
- compatible = "ti,k2hk", "ti,keystone"
-- Keystone 2 Lamarr
- compatible = "ti,k2l", "ti,keystone"
-- Keystone 2 Edison
- compatible = "ti,k2e", "ti,keystone"
-- K2G
- compatible = "ti,k2g", "ti,keystone"
-
-Boards:
-- Keystone 2 Hawking/Kepler EVM
- compatible = "ti,k2hk-evm", "ti,k2hk", "ti,keystone"
-
-- Keystone 2 Lamarr EVM
- compatible = "ti,k2l-evm", "ti, k2l", "ti,keystone"
-
-- Keystone 2 Edison EVM
- compatible = "ti,k2e-evm", "ti,k2e", "ti,keystone"
-
-- K2G EVM
- compatible = "ti,k2g-evm", "ti,k2g", "ti-keystone"
-
-- K2G Industrial Communication Engine EVM
- compatible = "ti,k2g-ice", "ti,k2g", "ti-keystone"
diff --git a/Documentation/devicetree/bindings/arm/keystone/ti,k3-sci-common.yaml b/Documentation/devicetree/bindings/arm/keystone/ti,k3-sci-common.yaml
index ff378d5cbd32..4a323e8c785d 100644
--- a/Documentation/devicetree/bindings/arm/keystone/ti,k3-sci-common.yaml
+++ b/Documentation/devicetree/bindings/arm/keystone/ti,k3-sci-common.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause)
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/arm/keystone/ti,k3-sci-common.yaml#
diff --git a/Documentation/devicetree/bindings/arm/keystone/ti,sci.yaml b/Documentation/devicetree/bindings/arm/keystone/ti,sci.yaml
index 91b96065f7df..25a2b42105e5 100644
--- a/Documentation/devicetree/bindings/arm/keystone/ti,sci.yaml
+++ b/Documentation/devicetree/bindings/arm/keystone/ti,sci.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause)
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/arm/keystone/ti,sci.yaml#
@@ -20,7 +20,7 @@ description: |
initialized early into boot process and provides services to Operating Systems
on multiple processors including ones running Linux.
- See http://processors.wiki.ti.com/index.php/TISCI for protocol definition.
+ See https://software-dl.ti.com/tisci/esd/latest/index.html for protocol definition.
The TI-SCI node describes the Texas Instrument's System Controller entity node.
This parent node may optionally have additional children nodes which describe
@@ -61,10 +61,6 @@ properties:
mboxes:
minItems: 2
- ti,system-reboot-controller:
- description: Determines If system reboot can be triggered by SoC reboot
- type: boolean
-
ti,host-id:
$ref: /schemas/types.yaml#/definitions/uint32
description: |
@@ -94,10 +90,9 @@ examples:
- |
pmmc: system-controller@2921800 {
compatible = "ti,k2g-sci";
- ti,system-reboot-controller;
mbox-names = "rx", "tx";
- mboxes= <&msgmgr 5 2>,
- <&msgmgr 0 0>;
+ mboxes = <&msgmgr 5 2>,
+ <&msgmgr 0 0>;
reg-names = "debug_messages";
reg = <0x02921800 0x800>;
};
@@ -107,8 +102,8 @@ examples:
compatible = "ti,k2g-sci";
ti,host-id = <12>;
mbox-names = "rx", "tx";
- mboxes= <&secure_proxy_main 11>,
- <&secure_proxy_main 13>;
+ mboxes = <&secure_proxy_main 11>,
+ <&secure_proxy_main 13>;
reg-names = "debug_messages";
reg = <0x44083000 0x1000>;
diff --git a/Documentation/devicetree/bindings/arm/lge.yaml b/Documentation/devicetree/bindings/arm/lge.yaml
new file mode 100644
index 000000000000..d983ef7fcbd6
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/lge.yaml
@@ -0,0 +1,28 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/lge.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: LG Electronics SoC Platforms
+
+maintainers:
+ - Chanho Min <chanho.min@lge.com>
+
+properties:
+ $nodename:
+ const: "/"
+ compatible:
+ oneOf:
+ - description: Boards with LG1312 Soc
+ items:
+ - const: lge,lg1312-ref
+ - const: lge,lg1312
+
+ - description: Boards with LG1313 SoC
+ items:
+ - const: lge,lg1313-ref
+ - const: lge,lg1313
+
+additionalProperties: true
+...
diff --git a/Documentation/devicetree/bindings/arm/marvell,berlin.yaml b/Documentation/devicetree/bindings/arm/marvell,berlin.yaml
new file mode 100644
index 000000000000..4e8442980dcb
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/marvell,berlin.yaml
@@ -0,0 +1,45 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/marvell,berlin.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Synaptics/Marvell Berlin SoC
+
+maintainers:
+ - Jisheng Zhang <jszhang@kernel.org>
+
+description:
+ According to https://www.synaptics.com/company/news/conexant-marvell
+ Synaptics has acquired the Multimedia Solutions Business of Marvell, so
+ Berlin SoCs are now Synaptics' SoCs.
+
+properties:
+ $nodename:
+ const: '/'
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - sony,nsz-gs7
+ - const: marvell,berlin2
+ - const: marvell,berlin
+ - items:
+ - enum:
+ - google,chromecast
+ - valve,steamlink
+ - const: marvell,berlin2cd
+ - const: marvell,berlin
+ - items:
+ - enum:
+ - marvell,berlin2q-dmp
+ - const: marvell,berlin2q
+ - const: marvell,berlin
+ - items:
+ - enum:
+ - marvell,berlin4ct-dmp
+ - marvell,berlin4ct-stb
+ - const: marvell,berlin4ct
+ - const: marvell,berlin
+
+additionalProperties: true
diff --git a/Documentation/devicetree/bindings/arm/marvell/98dx3236.txt b/Documentation/devicetree/bindings/arm/marvell/98dx3236.txt
deleted file mode 100644
index 64e8c73fc5ab..000000000000
--- a/Documentation/devicetree/bindings/arm/marvell/98dx3236.txt
+++ /dev/null
@@ -1,23 +0,0 @@
-Marvell 98DX3236, 98DX3336 and 98DX4251 Platforms Device Tree Bindings
-----------------------------------------------------------------------
-
-Boards with a SoC of the Marvell 98DX3236, 98DX3336 and 98DX4251 families
-shall have the following property:
-
-Required root node property:
-
-compatible: must contain "marvell,armadaxp-98dx3236"
-
-In addition, boards using the Marvell 98DX3336 SoC shall have the
-following property:
-
-Required root node property:
-
-compatible: must contain "marvell,armadaxp-98dx3336"
-
-In addition, boards using the Marvell 98DX4251 SoC shall have the
-following property:
-
-Required root node property:
-
-compatible: must contain "marvell,armadaxp-98dx4251"
diff --git a/Documentation/devicetree/bindings/arm/marvell/ap80x-system-controller.txt b/Documentation/devicetree/bindings/arm/marvell/ap80x-system-controller.txt
deleted file mode 100644
index c83245065d44..000000000000
--- a/Documentation/devicetree/bindings/arm/marvell/ap80x-system-controller.txt
+++ /dev/null
@@ -1,185 +0,0 @@
-Marvell Armada AP80x System Controller
-======================================
-
-The AP806/AP807 is one of the two core HW blocks of the Marvell Armada
-7K/8K/931x SoCs. It contains system controllers, which provide several
-registers giving access to numerous features: clocks, pin-muxing and
-many other SoC configuration items. This DT binding allows to describe
-these system controllers.
-
-For the top level node:
- - compatible: must be: "syscon", "simple-mfd";
- - reg: register area of the AP80x system controller
-
-SYSTEM CONTROLLER 0
-===================
-
-Clocks:
--------
-
-
-The Device Tree node representing the AP806/AP807 system controller
-provides a number of clocks:
-
- - 0: reference clock of CPU cluster 0
- - 1: reference clock of CPU cluster 1
- - 2: fixed PLL at 1200 Mhz
- - 3: MSS clock, derived from the fixed PLL
-
-Required properties:
-
- - compatible: must be one of:
- * "marvell,ap806-clock"
- * "marvell,ap807-clock"
- - #clock-cells: must be set to 1
-
-Pinctrl:
---------
-
-For common binding part and usage, refer to
-Documentation/devicetree/bindings/pinctrl/marvell,mvebu-pinctrl.txt.
-
-Required properties:
-- compatible must be "marvell,ap806-pinctrl",
-
-Available mpp pins/groups and functions:
-Note: brackets (x) are not part of the mpp name for marvell,function and given
-only for more detailed description in this document.
-
-name pins functions
-================================================================================
-mpp0 0 gpio, sdio(clk), spi0(clk)
-mpp1 1 gpio, sdio(cmd), spi0(miso)
-mpp2 2 gpio, sdio(d0), spi0(mosi)
-mpp3 3 gpio, sdio(d1), spi0(cs0n)
-mpp4 4 gpio, sdio(d2), i2c0(sda)
-mpp5 5 gpio, sdio(d3), i2c0(sdk)
-mpp6 6 gpio, sdio(ds)
-mpp7 7 gpio, sdio(d4), uart1(rxd)
-mpp8 8 gpio, sdio(d5), uart1(txd)
-mpp9 9 gpio, sdio(d6), spi0(cs1n)
-mpp10 10 gpio, sdio(d7)
-mpp11 11 gpio, uart0(txd)
-mpp12 12 gpio, sdio(pw_off), sdio(hw_rst)
-mpp13 13 gpio
-mpp14 14 gpio
-mpp15 15 gpio
-mpp16 16 gpio
-mpp17 17 gpio
-mpp18 18 gpio
-mpp19 19 gpio, uart0(rxd), sdio(pw_off)
-
-GPIO:
------
-For common binding part and usage, refer to
-Documentation/devicetree/bindings/gpio/gpio-mvebu.yaml.
-
-Required properties:
-
-- compatible: "marvell,armada-8k-gpio"
-
-- offset: offset address inside the syscon block
-
-Optional properties:
-
-- marvell,pwm-offset: offset address of PWM duration control registers inside
- the syscon block
-
-Example:
-ap_syscon: system-controller@6f4000 {
- compatible = "syscon", "simple-mfd";
- reg = <0x6f4000 0x1000>;
-
- ap_clk: clock {
- compatible = "marvell,ap806-clock";
- #clock-cells = <1>;
- };
-
- ap_pinctrl: pinctrl {
- compatible = "marvell,ap806-pinctrl";
- };
-
- ap_gpio: gpio {
- compatible = "marvell,armada-8k-gpio";
- offset = <0x1040>;
- ngpios = <19>;
- gpio-controller;
- #gpio-cells = <2>;
- gpio-ranges = <&ap_pinctrl 0 0 19>;
- marvell,pwm-offset = <0x10c0>;
- #pwm-cells = <2>;
- clocks = <&ap_clk 3>;
- };
-};
-
-SYSTEM CONTROLLER 1
-===================
-
-Thermal:
---------
-
-For common binding part and usage, refer to
-Documentation/devicetree/bindings/thermal/thermal*.yaml
-
-The thermal IP can probe the temperature all around the processor. It
-may feature several channels, each of them wired to one sensor.
-
-It is possible to setup an overheat interrupt by giving at least one
-critical point to any subnode of the thermal-zone node.
-
-Required properties:
-- compatible: must be one of:
- * marvell,armada-ap806-thermal
-- reg: register range associated with the thermal functions.
-
-Optional properties:
-- interrupts: overheat interrupt handle. Should point to line 18 of the
- SEI irqchip. See interrupt-controller/interrupts.txt
-- #thermal-sensor-cells: shall be <1> when thermal-zones subnodes refer
- to this IP and represents the channel ID. There is one sensor per
- channel. O refers to the thermal IP internal channel, while positive
- IDs refer to each CPU.
-
-Example:
-ap_syscon1: system-controller@6f8000 {
- compatible = "syscon", "simple-mfd";
- reg = <0x6f8000 0x1000>;
-
- ap_thermal: thermal-sensor@80 {
- compatible = "marvell,armada-ap806-thermal";
- reg = <0x80 0x10>;
- interrupt-parent = <&sei>;
- interrupts = <18>;
- #thermal-sensor-cells = <1>;
- };
-};
-
-Cluster clocks:
----------------
-
-Device Tree Clock bindings for cluster clock of Marvell
-AP806/AP807. Each cluster contain up to 2 CPUs running at the same
-frequency.
-
-Required properties:
- - compatible: must be one of:
- * "marvell,ap806-cpu-clock"
- * "marvell,ap807-cpu-clock"
-- #clock-cells : should be set to 1.
-
-- clocks : shall be the input parent clock(s) phandle for the clock
- (one per cluster)
-
-- reg: register range associated with the cluster clocks
-
-ap_syscon1: system-controller@6f8000 {
- compatible = "marvell,armada-ap806-syscon1", "syscon", "simple-mfd";
- reg = <0x6f8000 0x1000>;
-
- cpu_clk: clock-cpu@278 {
- compatible = "marvell,ap806-cpu-clock";
- clocks = <&ap_clk 0>, <&ap_clk 1>;
- #clock-cells = <1>;
- reg = <0x278 0xa30>;
- };
-};
diff --git a/Documentation/devicetree/bindings/arm/marvell/armada-370-xp.txt b/Documentation/devicetree/bindings/arm/marvell/armada-370-xp.txt
deleted file mode 100644
index c6ed90ea6e17..000000000000
--- a/Documentation/devicetree/bindings/arm/marvell/armada-370-xp.txt
+++ /dev/null
@@ -1,24 +0,0 @@
-Marvell Armada 370 and Armada XP Platforms Device Tree Bindings
----------------------------------------------------------------
-
-Boards with a SoC of the Marvell Armada 370 and Armada XP families
-shall have the following property:
-
-Required root node property:
-
-compatible: must contain "marvell,armada-370-xp"
-
-In addition, boards using the Marvell Armada 370 SoC shall have the
-following property:
-
-Required root node property:
-
-compatible: must contain "marvell,armada370"
-
-In addition, boards using the Marvell Armada XP SoC shall have the
-following property:
-
-Required root node property:
-
-compatible: must contain "marvell,armadaxp"
-
diff --git a/Documentation/devicetree/bindings/arm/marvell/armada-375.txt b/Documentation/devicetree/bindings/arm/marvell/armada-375.txt
deleted file mode 100644
index 867d0b80cb8f..000000000000
--- a/Documentation/devicetree/bindings/arm/marvell/armada-375.txt
+++ /dev/null
@@ -1,9 +0,0 @@
-Marvell Armada 375 Platforms Device Tree Bindings
--------------------------------------------------
-
-Boards with a SoC of the Marvell Armada 375 family shall have the
-following property:
-
-Required root node property:
-
-compatible: must contain "marvell,armada375"
diff --git a/Documentation/devicetree/bindings/arm/marvell/armada-37xx.txt b/Documentation/devicetree/bindings/arm/marvell/armada-37xx.txt
deleted file mode 100644
index 29fa93dad52b..000000000000
--- a/Documentation/devicetree/bindings/arm/marvell/armada-37xx.txt
+++ /dev/null
@@ -1,32 +0,0 @@
-Power management
-----------------
-
-For power management (particularly DVFS and AVS), the North Bridge
-Power Management component is needed:
-
-Required properties:
-- compatible : should contain "marvell,armada-3700-nb-pm", "syscon";
-- reg : the register start and length for the North Bridge
- Power Management
-
-Example:
-
-nb_pm: syscon@14000 {
- compatible = "marvell,armada-3700-nb-pm", "syscon";
- reg = <0x14000 0x60>;
-}
-
-AVS
----
-
-For AVS an other component is needed:
-
-Required properties:
-- compatible : should contain "marvell,armada-3700-avs", "syscon";
-- reg : the register start and length for the AVS
-
-Example:
-avs: avs@11500 {
- compatible = "marvell,armada-3700-avs", "syscon";
- reg = <0x11500 0x40>;
-}
diff --git a/Documentation/devicetree/bindings/arm/marvell/armada-37xx.yaml b/Documentation/devicetree/bindings/arm/marvell/armada-37xx.yaml
index 6905d29f3108..b2f4fe81b97c 100644
--- a/Documentation/devicetree/bindings/arm/marvell/armada-37xx.yaml
+++ b/Documentation/devicetree/bindings/arm/marvell/armada-37xx.yaml
@@ -18,10 +18,12 @@ properties:
items:
- enum:
- cznic,turris-mox
+ - glinet,gl-mv1000
- globalscale,espressobin
- marvell,armada-3720-db
- methode,edpu
- methode,udpu
+ - ripe,atlas-v5
- const: marvell,armada3720
- const: marvell,armada3710
diff --git a/Documentation/devicetree/bindings/arm/marvell/armada-38x.txt b/Documentation/devicetree/bindings/arm/marvell/armada-38x.txt
deleted file mode 100644
index 202953f1887e..000000000000
--- a/Documentation/devicetree/bindings/arm/marvell/armada-38x.txt
+++ /dev/null
@@ -1,27 +0,0 @@
-Marvell Armada 38x Platforms Device Tree Bindings
--------------------------------------------------
-
-Boards with a SoC of the Marvell Armada 38x family shall have the
-following property:
-
-Required root node property:
-
- - compatible: must contain "marvell,armada380"
-
-In addition, boards using the Marvell Armada 385 SoC shall have the
-following property before the previous one:
-
-Required root node property:
-
-compatible: must contain "marvell,armada385"
-
-In addition, boards using the Marvell Armada 388 SoC shall have the
-following property before the previous one:
-
-Required root node property:
-
-compatible: must contain "marvell,armada388"
-
-Example:
-
-compatible = "marvell,a385-rd", "marvell,armada385", "marvell,armada380";
diff --git a/Documentation/devicetree/bindings/arm/marvell/armada-38x.yaml b/Documentation/devicetree/bindings/arm/marvell/armada-38x.yaml
new file mode 100644
index 000000000000..cdf805b5db95
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/marvell/armada-38x.yaml
@@ -0,0 +1,70 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/marvell/armada-38x.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Marvell Armada 38x Platforms
+
+maintainers:
+ - Gregory CLEMENT <gregory.clement@bootlin.com>
+
+properties:
+ $nodename:
+ const: '/'
+ compatible:
+ oneOf:
+
+ - description:
+ Netgear Armada 380 GS110EM Managed Switch.
+ items:
+ - const: netgear,gs110emx
+ - const: marvell,armada380
+
+ - description:
+ Marvell Armada 385 Development Boards.
+ items:
+ - enum:
+ - marvell,a385-db-amc
+ - marvell,a385-db-ap
+ - const: marvell,armada385
+ - const: marvell,armada380
+
+ - description:
+ SolidRun Armada 385 based single-board computers.
+ items:
+ - enum:
+ - solidrun,clearfog-gtr-l8
+ - solidrun,clearfog-gtr-s4
+ - const: marvell,armada385
+ - const: marvell,armada380
+
+ - description:
+ Kobol Armada 388 based Helios-4 NAS.
+ items:
+ - const: kobol,helios4
+ - const: marvell,armada388
+ - const: marvell,armada385
+ - const: marvell,armada380
+
+ - description:
+ Marvell Armada 388 Development Boards.
+ items:
+ - enum:
+ - marvell,a388-gp
+ - const: marvell,armada388
+ - const: marvell,armada385
+ - const: marvell,armada380
+
+ - description:
+ SolidRun Armada 388 clearfog family single-board computers.
+ items:
+ - enum:
+ - solidrun,clearfog-base-a1
+ - solidrun,clearfog-pro-a1
+ - const: solidrun,clearfog-a1
+ - const: marvell,armada388
+ - const: marvell,armada385
+ - const: marvell,armada380
+
+additionalProperties: true
diff --git a/Documentation/devicetree/bindings/arm/marvell/armada-39x.txt b/Documentation/devicetree/bindings/arm/marvell/armada-39x.txt
deleted file mode 100644
index 89468664f6ea..000000000000
--- a/Documentation/devicetree/bindings/arm/marvell/armada-39x.txt
+++ /dev/null
@@ -1,31 +0,0 @@
-Marvell Armada 39x Platforms Device Tree Bindings
--------------------------------------------------
-
-Boards with a SoC of the Marvell Armada 39x family shall have the
-following property:
-
-Required root node property:
-
- - compatible: must contain "marvell,armada390"
-
-In addition, boards using the Marvell Armada 395 SoC shall have the
-following property before the common "marvell,armada390" one:
-
-Required root node property:
-
-compatible: must contain "marvell,armada395"
-
-Example:
-
-compatible = "marvell,a395-gp", "marvell,armada395", "marvell,armada390";
-
-Boards using the Marvell Armada 398 SoC shall have the following
-property before the common "marvell,armada390" one:
-
-Required root node property:
-
-compatible: must contain "marvell,armada398"
-
-Example:
-
-compatible = "marvell,a398-db", "marvell,armada398", "marvell,armada390";
diff --git a/Documentation/devicetree/bindings/arm/marvell/armada-7k-8k.yaml b/Documentation/devicetree/bindings/arm/marvell/armada-7k-8k.yaml
index 52d78521e412..4bc7454a5d3a 100644
--- a/Documentation/devicetree/bindings/arm/marvell/armada-7k-8k.yaml
+++ b/Documentation/devicetree/bindings/arm/marvell/armada-7k-8k.yaml
@@ -23,6 +23,9 @@ properties:
- description: Armada 7040 SoC
items:
+ - enum:
+ - globalscale,mochabin
+ - marvell,armada7040-db
- const: marvell,armada7040
- const: marvell,armada-ap806-quad
- const: marvell,armada-ap806
@@ -35,10 +38,32 @@ properties:
- description: Armada 8040 SoC
items:
+ - enum:
+ - iei,puzzle-m801
+ - marvell,armada8040-db
+ - solidrun,clearfog-gt-8k
- const: marvell,armada8040
- const: marvell,armada-ap806-quad
- const: marvell,armada-ap806
+ - description: Armada 8040 SoC MACCHIATOBin Boards
+ items:
+ - enum:
+ - marvell,armada8040-mcbin-doubleshot
+ - marvell,armada8040-mcbin-singleshot
+ - const: marvell,armada8040-mcbin
+ - const: marvell,armada8040
+ - const: marvell,armada-ap806-quad
+ - const: marvell,armada-ap806
+
+ - description: Armada 8080 SoC
+ items:
+ - enum:
+ - marvell,armada-8080-db
+ - const: marvell,armada-8080
+ - const: marvell,armada-ap810-octa
+ - const: marvell,armada-ap810
+
- description: Armada CN9130 SoC with no external CP
items:
- const: marvell,cn9130
@@ -60,4 +85,44 @@ properties:
- const: marvell,armada-ap807-quad
- const: marvell,armada-ap807
+ - description:
+ Alleycat5X (98DX35xx) Reference Design as COM Express Carrier plus
+ Armada CN9130 COM Express CPU module
+ items:
+ - const: marvell,cn9130-ac5x-carrier
+ - const: marvell,rd-ac5x-carrier
+ - const: marvell,cn9130-cpu-module
+ - const: marvell,cn9130
+ - const: marvell,armada-ap807-quad
+ - const: marvell,armada-ap807
+
+ - description:
+ Alleycat5X (98DX35xx) Reference Design as COM Express Carrier plus
+ Armada CN9131 COM Express CPU module
+ items:
+ - const: marvell,cn9131-ac5x-carrier
+ - const: marvell,rd-ac5x-carrier
+ - const: marvell,cn9131-cpu-module
+ - const: marvell,cn9131
+ - const: marvell,armada-ap807-quad
+ - const: marvell,armada-ap807
+
+ - description:
+ SolidRun CN9130 SoM based single-board computers
+ items:
+ - enum:
+ - solidrun,cn9130-clearfog-base
+ - solidrun,cn9130-clearfog-pro
+ - solidrun,cn9131-solidwan
+ - const: solidrun,cn9130-sr-som
+ - const: marvell,cn9130
+
+ - description:
+ SolidRun CN9132 COM-Express Type 7 based single-board computers
+ items:
+ - enum:
+ - solidrun,cn9132-clearfog
+ - const: solidrun,cn9132-sr-cex7
+ - const: marvell,cn9130
+
additionalProperties: true
diff --git a/Documentation/devicetree/bindings/arm/marvell/armada-8kp.txt b/Documentation/devicetree/bindings/arm/marvell/armada-8kp.txt
deleted file mode 100644
index f3e9624534c6..000000000000
--- a/Documentation/devicetree/bindings/arm/marvell/armada-8kp.txt
+++ /dev/null
@@ -1,15 +0,0 @@
-Marvell Armada 8KPlus Platforms Device Tree Bindings
-----------------------------------------------------
-
-Boards using a SoC of the Marvell Armada 8KP families must carry
-the following root node property:
-
- - compatible, with one of the following values:
-
- - "marvell,armada-8080", "marvell,armada-ap810-octa", "marvell,armada-ap810"
- when the SoC being used is the Armada 8080
-
-Example:
-
-compatible = "marvell,armada-8080-db", "marvell,armada-8080",
- "marvell,armada-ap810-octa", "marvell,armada-ap810"
diff --git a/Documentation/devicetree/bindings/arm/marvell/cp110-system-controller.txt b/Documentation/devicetree/bindings/arm/marvell/cp110-system-controller.txt
deleted file mode 100644
index d84105c7c935..000000000000
--- a/Documentation/devicetree/bindings/arm/marvell/cp110-system-controller.txt
+++ /dev/null
@@ -1,234 +0,0 @@
-Marvell Armada CP110 System Controller
-======================================
-
-The CP110 is one of the two core HW blocks of the Marvell Armada 7K/8K
-SoCs. It contains system controllers, which provide several registers
-giving access to numerous features: clocks, pin-muxing and many other
-SoC configuration items. This DT binding allows to describe these
-system controllers.
-
-For the top level node:
- - compatible: must be: "syscon", "simple-mfd";
- - reg: register area of the CP110 system controller
-
-SYSTEM CONTROLLER 0
-===================
-
-Clocks:
--------
-
-The Device Tree node representing this System Controller 0 provides a
-number of clocks:
-
- - a set of core clocks
- - a set of gatable clocks
-
-Those clocks can be referenced by other Device Tree nodes using two
-cells:
- - The first cell must be 0 or 1. 0 for the core clocks and 1 for the
- gatable clocks.
- - The second cell identifies the particular core clock or gatable
- clocks.
-
-The following clocks are available:
- - Core clocks
- - 0 0 APLL
- - 0 1 PPv2 core
- - 0 2 EIP
- - 0 3 Core
- - 0 4 NAND core
- - 0 5 SDIO core
- - Gatable clocks
- - 1 0 Audio
- - 1 1 Comm Unit
- - 1 2 NAND
- - 1 3 PPv2
- - 1 4 SDIO
- - 1 5 MG Domain
- - 1 6 MG Core
- - 1 7 XOR1
- - 1 8 XOR0
- - 1 9 GOP DP
- - 1 11 PCIe x1 0
- - 1 12 PCIe x1 1
- - 1 13 PCIe x4
- - 1 14 PCIe / XOR
- - 1 15 SATA
- - 1 16 SATA USB
- - 1 17 Main
- - 1 18 SD/MMC/GOP
- - 1 21 Slow IO (SPI, NOR, BootROM, I2C, UART)
- - 1 22 USB3H0
- - 1 23 USB3H1
- - 1 24 USB3 Device
- - 1 25 EIP150
- - 1 26 EIP197
-
-Required properties:
-
- - compatible: must be:
- "marvell,cp110-clock"
- - #clock-cells: must be set to 2
-
-Pinctrl:
---------
-
-For common binding part and usage, refer to the file
-Documentation/devicetree/bindings/pinctrl/marvell,mvebu-pinctrl.txt.
-
-Required properties:
-
-- compatible: "marvell,armada-7k-pinctrl", "marvell,armada-8k-cpm-pinctrl",
- "marvell,armada-8k-cps-pinctrl" or "marvell,cp115-standalone-pinctrl"
- depending on the specific variant of the SoC being used.
-
-Available mpp pins/groups and functions:
-Note: brackets (x) are not part of the mpp name for marvell,function and given
-only for more detailed description in this document.
-
-name pins functions
-================================================================================
-mpp0 0 gpio, dev(ale1), au(i2smclk), ge0(rxd3), tdm(pclk), ptp(pulse), mss_i2c(sda), uart0(rxd), sata0(present_act), ge(mdio)
-mpp1 1 gpio, dev(ale0), au(i2sdo_spdifo), ge0(rxd2), tdm(drx), ptp(clk), mss_i2c(sck), uart0(txd), sata1(present_act), ge(mdc)
-mpp2 2 gpio, dev(ad15), au(i2sextclk), ge0(rxd1), tdm(dtx), mss_uart(rxd), ptp(pclk_out), i2c1(sck), uart1(rxd), sata0(present_act), xg(mdc)
-mpp3 3 gpio, dev(ad14), au(i2slrclk), ge0(rxd0), tdm(fsync), mss_uart(txd), pcie(rstoutn), i2c1(sda), uart1(txd), sata1(present_act), xg(mdio)
-mpp4 4 gpio, dev(ad13), au(i2sbclk), ge0(rxctl), tdm(rstn), mss_uart(rxd), uart1(cts), pcie0(clkreq), uart3(rxd), ge(mdc)
-mpp5 5 gpio, dev(ad12), au(i2sdi), ge0(rxclk), tdm(intn), mss_uart(txd), uart1(rts), pcie1(clkreq), uart3(txd), ge(mdio)
-mpp6 6 gpio, dev(ad11), ge0(txd3), spi0(csn2), au(i2sextclk), sata1(present_act), pcie2(clkreq), uart0(rxd), ptp(pulse)
-mpp7 7 gpio, dev(ad10), ge0(txd2), spi0(csn1), spi1(csn1), sata0(present_act), led(data), uart0(txd), ptp(clk)
-mpp8 8 gpio, dev(ad9), ge0(txd1), spi0(csn0), spi1(csn0), uart0(cts), led(stb), uart2(rxd), ptp(pclk_out), synce1(clk)
-mpp9 9 gpio, dev(ad8), ge0(txd0), spi0(mosi), spi1(mosi), pcie(rstoutn), synce2(clk)
-mpp10 10 gpio, dev(readyn), ge0(txctl), spi0(miso), spi1(miso), uart0(cts), sata1(present_act)
-mpp11 11 gpio, dev(wen1), ge0(txclkout), spi0(clk), spi1(clk), uart0(rts), led(clk), uart2(txd), sata0(present_act)
-mpp12 12 gpio, dev(clk_out), nf(rbn1), spi1(csn1), ge0(rxclk)
-mpp13 13 gpio, dev(burstn), nf(rbn0), spi1(miso), ge0(rxctl), mss_spi(miso)
-mpp14 14 gpio, dev(bootcsn), dev(csn0), spi1(csn0), spi0(csn3), au(i2sextclk), spi0(miso), sata0(present_act), mss_spi(csn)
-mpp15 15 gpio, dev(ad7), spi1(mosi), spi0(mosi), mss_spi(mosi), ptp(pulse_cp2cp)
-mpp16 16 gpio, dev(ad6), spi1(clk), mss_spi(clk)
-mpp17 17 gpio, dev(ad5), ge0(txd3)
-mpp18 18 gpio, dev(ad4), ge0(txd2), ptp(clk_cp2cp)
-mpp19 19 gpio, dev(ad3), ge0(txd1), wakeup(out_cp2cp)
-mpp20 20 gpio, dev(ad2), ge0(txd0)
-mpp21 21 gpio, dev(ad1), ge0(txctl), sei(in_cp2cp)
-mpp22 22 gpio, dev(ad0), ge0(txclkout), wakeup(in_cp2cp)
-mpp23 23 gpio, dev(a1), au(i2smclk), link(rd_in_cp2cp)
-mpp24 24 gpio, dev(a0), au(i2slrclk)
-mpp25 25 gpio, dev(oen), au(i2sdo_spdifo)
-mpp26 26 gpio, dev(wen0), au(i2sbclk)
-mpp27 27 gpio, dev(csn0), spi1(miso), mss_gpio4, ge0(rxd3), spi0(csn4), ge(mdio), sata0(present_act), uart0(rts), rei(in_cp2cp)
-mpp28 28 gpio, dev(csn1), spi1(csn0), mss_gpio5, ge0(rxd2), spi0(csn5), pcie2(clkreq), ptp(pulse), ge(mdc), sata1(present_act), uart0(cts), led(data)
-mpp29 29 gpio, dev(csn2), spi1(mosi), mss_gpio6, ge0(rxd1), spi0(csn6), pcie1(clkreq), ptp(clk), mss_i2c(sda), sata0(present_act), uart0(rxd), led(stb)
-mpp30 30 gpio, dev(csn3), spi1(clk), mss_gpio7, ge0(rxd0), spi0(csn7), pcie0(clkreq), ptp(pclk_out), mss_i2c(sck), sata1(present_act), uart0(txd), led(clk)
-mpp31 31 gpio, dev(a2), mss_gpio4, pcie(rstoutn), ge(mdc)
-mpp32 32 gpio, mii(col), mii(txerr), mss_spi(miso), tdm(drx), au(i2sextclk), au(i2sdi), ge(mdio), sdio(v18_en), pcie1(clkreq), mss_gpio0
-mpp33 33 gpio, mii(txclk), sdio(pwr10), mss_spi(csn), tdm(fsync), au(i2smclk), sdio(bus_pwr), xg(mdio), pcie2(clkreq), mss_gpio1
-mpp34 34 gpio, mii(rxerr), sdio(pwr11), mss_spi(mosi), tdm(dtx), au(i2slrclk), sdio(wr_protect), ge(mdc), pcie0(clkreq), mss_gpio2
-mpp35 35 gpio, sata1(present_act), i2c1(sda), mss_spi(clk), tdm(pclk), au(i2sdo_spdifo), sdio(card_detect), xg(mdio), ge(mdio), pcie(rstoutn), mss_gpio3
-mpp36 36 gpio, synce2(clk), i2c1(sck), ptp(clk), synce1(clk), au(i2sbclk), sata0(present_act), xg(mdc), ge(mdc), pcie2(clkreq), mss_gpio5
-mpp37 37 gpio, uart2(rxd), i2c0(sck), ptp(pclk_out), tdm(intn), mss_i2c(sck), sata1(present_act), ge(mdc), xg(mdc), pcie1(clkreq), mss_gpio6, link(rd_out_cp2cp)
-mpp38 38 gpio, uart2(txd), i2c0(sda), ptp(pulse), tdm(rstn), mss_i2c(sda), sata0(present_act), ge(mdio), xg(mdio), au(i2sextclk), mss_gpio7, ptp(pulse_cp2cp)
-mpp39 39 gpio, sdio(wr_protect), au(i2sbclk), ptp(clk), spi0(csn1), sata1(present_act), mss_gpio0
-mpp40 40 gpio, sdio(pwr11), synce1(clk), mss_i2c(sda), au(i2sdo_spdifo), ptp(pclk_out), spi0(clk), uart1(txd), ge(mdio), sata0(present_act), mss_gpio1
-mpp41 41 gpio, sdio(pwr10), sdio(bus_pwr), mss_i2c(sck), au(i2slrclk), ptp(pulse), spi0(mosi), uart1(rxd), ge(mdc), sata1(present_act), mss_gpio2, rei(out_cp2cp)
-mpp42 42 gpio, sdio(v18_en), sdio(wr_protect), synce2(clk), au(i2smclk), mss_uart(txd), spi0(miso), uart1(cts), xg(mdc), sata0(present_act), mss_gpio4
-mpp43 43 gpio, sdio(card_detect), synce1(clk), au(i2sextclk), mss_uart(rxd), spi0(csn0), uart1(rts), xg(mdio), sata1(present_act), mss_gpio5, wakeup(out_cp2cp)
-mpp44 44 gpio, ge1(txd2), uart0(rts), ptp(clk_cp2cp)
-mpp45 45 gpio, ge1(txd3), uart0(txd), pcie(rstoutn)
-mpp46 46 gpio, ge1(txd1), uart1(rts)
-mpp47 47 gpio, ge1(txd0), spi1(clk), uart1(txd), ge(mdc)
-mpp48 48 gpio, ge1(txctl_txen), spi1(mosi), xg(mdc), wakeup(in_cp2cp)
-mpp49 49 gpio, ge1(txclkout), mii(crs), spi1(miso), uart1(rxd), ge(mdio), pcie0(clkreq), sdio(v18_en), sei(out_cp2cp)
-mpp50 50 gpio, ge1(rxclk), mss_i2c(sda), spi1(csn0), uart2(txd), uart0(rxd), xg(mdio), sdio(pwr11)
-mpp51 51 gpio, ge1(rxd0), mss_i2c(sck), spi1(csn1), uart2(rxd), uart0(cts), sdio(pwr10)
-mpp52 52 gpio, ge1(rxd1), synce1(clk), synce2(clk), spi1(csn2), uart1(cts), led(clk), pcie(rstoutn), pcie0(clkreq)
-mpp53 53 gpio, ge1(rxd2), ptp(clk), spi1(csn3), uart1(rxd), led(stb), sdio(led)
-mpp54 54 gpio, ge1(rxd3), synce2(clk), ptp(pclk_out), synce1(clk), led(data), sdio(hw_rst), sdio_wp(wr_protect)
-mpp55 55 gpio, ge1(rxctl_rxdv), ptp(pulse), sdio(led), sdio_cd(card_detect)
-mpp56 56 gpio, tdm(drx), au(i2sdo_spdifo), spi0(clk), uart1(rxd), sata1(present_act), sdio(clk)
-mpp57 57 gpio, mss_i2c(sda), ptp(pclk_out), tdm(intn), au(i2sbclk), spi0(mosi), uart1(txd), sata0(present_act), sdio(cmd)
-mpp58 58 gpio, mss_i2c(sck), ptp(clk), tdm(rstn), au(i2sdi), spi0(miso), uart1(cts), led(clk), sdio(d0)
-mpp59 59 gpio, mss_gpio7, synce2(clk), tdm(fsync), au(i2slrclk), spi0(csn0), uart0(cts), led(stb), uart1(txd), sdio(d1)
-mpp60 60 gpio, mss_gpio6, ptp(pulse), tdm(dtx), au(i2smclk), spi0(csn1), uart0(rts), led(data), uart1(rxd), sdio(d2)
-mpp61 61 gpio, mss_gpio5, ptp(clk), tdm(pclk), au(i2sextclk), spi0(csn2), uart0(txd), uart2(txd), sata1(present_act), ge(mdio), sdio(d3)
-mpp62 62 gpio, mss_gpio4, synce1(clk), ptp(pclk_out), sata1(present_act), spi0(csn3), uart0(rxd), uart2(rxd), sata0(present_act), ge(mdc)
-
-GPIO:
------
-
-For common binding part and usage, refer to
-Documentation/devicetree/bindings/gpio/gpio-mvebu.yaml.
-
-Required properties:
-
-- compatible: "marvell,armada-8k-gpio"
-
-- offset: offset address inside the syscon block
-
-Example:
-
-CP110_LABEL(syscon0): system-controller@440000 {
- compatible = "syscon", "simple-mfd";
- reg = <0x440000 0x1000>;
-
- CP110_LABEL(clk): clock {
- compatible = "marvell,cp110-clock";
- #clock-cells = <2>;
- };
-
- CP110_LABEL(pinctrl): pinctrl {
- compatible = "marvell,armada-8k-cpm-pinctrl";
- };
-
- CP110_LABEL(gpio1): gpio@100 {
- compatible = "marvell,armada-8k-gpio";
- offset = <0x100>;
- ngpios = <32>;
- gpio-controller;
- #gpio-cells = <2>;
- gpio-ranges = <&CP110_LABEL(pinctrl) 0 0 32>;
- };
-
-};
-
-SYSTEM CONTROLLER 1
-===================
-
-Thermal:
---------
-
-The thermal IP can probe the temperature all around the processor. It
-may feature several channels, each of them wired to one sensor.
-
-It is possible to setup an overheat interrupt by giving at least one
-critical point to any subnode of the thermal-zone node.
-
-For common binding part and usage, refer to
-Documentation/devicetree/bindings/thermal/thermal*.yaml
-
-Required properties:
-- compatible: must be one of:
- * marvell,armada-cp110-thermal
-- reg: register range associated with the thermal functions.
-
-Optional properties:
-- interrupts-extended: overheat interrupt handle. Should point to
- a line of the ICU-SEI irqchip (116 is what is usually used by the
- firmware). The ICU-SEI will redirect towards interrupt line #37 of the
- AP SEI which is shared across all CPs.
- See interrupt-controller/interrupts.txt
-- #thermal-sensor-cells: shall be <1> when thermal-zones subnodes refer
- to this IP and represents the channel ID. There is one sensor per
- channel. O refers to the thermal IP internal channel.
-
-Example:
-CP110_LABEL(syscon1): system-controller@6f8000 {
- compatible = "syscon", "simple-mfd";
- reg = <0x6f8000 0x1000>;
-
- CP110_LABEL(thermal): thermal-sensor@70 {
- compatible = "marvell,armada-cp110-thermal";
- reg = <0x70 0x10>;
- interrupts-extended = <&CP110_LABEL(icu_sei) 116 IRQ_TYPE_LEVEL_HIGH>;
- #thermal-sensor-cells = <1>;
- };
-};
diff --git a/Documentation/devicetree/bindings/arm/marvell/kirkwood.txt b/Documentation/devicetree/bindings/arm/marvell/kirkwood.txt
deleted file mode 100644
index 98cce9a653eb..000000000000
--- a/Documentation/devicetree/bindings/arm/marvell/kirkwood.txt
+++ /dev/null
@@ -1,27 +0,0 @@
-Marvell Kirkwood Platforms Device Tree Bindings
------------------------------------------------
-
-Boards with a SoC of the Marvell Kirkwood
-shall have the following property:
-
-Required root node property:
-
-compatible: must contain "marvell,kirkwood";
-
-In order to support the kirkwood cpufreq driver, there must be a node
-cpus/cpu@0 with three clocks, "cpu_clk", "ddrclk" and "powersave",
-where the "powersave" clock is a gating clock used to switch the CPU
-between the "cpu_clk" and the "ddrclk".
-
-Example:
-
- cpus {
- #address-cells = <1>;
- #size-cells = <0>;
-
- cpu@0 {
- device_type = "cpu";
- compatible = "marvell,sheeva-88SV131";
- clocks = <&core_clk 1>, <&core_clk 3>, <&gate_clk 11>;
- clock-names = "cpu_clk", "ddrclk", "powersave";
- };
diff --git a/Documentation/devicetree/bindings/arm/marvell/marvell,armada-370-xp.yaml b/Documentation/devicetree/bindings/arm/marvell/marvell,armada-370-xp.yaml
new file mode 100644
index 000000000000..e65eadfbd097
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/marvell/marvell,armada-370-xp.yaml
@@ -0,0 +1,78 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+---
+$id: http://devicetree.org/schemas/arm/marvell/marvell,armada-370-xp.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Marvell Armada 370 and Armada XP platforms
+
+maintainers:
+ - Andrew Lunn <andrew@lunn.ch>
+ - Gregory Clement <gregory.clement@bootlin.com>
+
+properties:
+ $nodename:
+ const: '/'
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - ctera,c200-v2
+ - dlink,dns327l
+ - globalscale,mirabox
+ - netgear,readynas-102
+ - netgear,readynas-104
+ - marvell,a370-db
+ - marvell,a370-rd
+ - seagate,dart-2
+ - seagate,dart-4
+ - seagate,cumulus-max
+ - seagate,cumulus
+ - synology,ds213j
+ - const: marvell,armada370
+ - const: marvell,armada-370-xp
+
+ - items:
+ - enum:
+ - mikrotik,crs305-1g-4s
+ - mikrotik,crs326-24g-2s
+ - mikrotik,crs328-4c-20s-4s
+ - const: marvell,armadaxp-98dx3236
+ - const: marvell,armada-370-xp
+
+ - items:
+ - const: marvell,db-xc3-24g4xg
+ - const: marvell,armadaxp-98dx3336
+ - const: marvell,armada-370-xp
+
+ - items:
+ - const: marvell,db-dxbc2
+ - const: marvell,armadaxp-98dx4251
+ - const: marvell,armada-370-xp
+
+ - items:
+ - enum:
+ - lenovo,ix4-300d
+ - linksys,mamba
+ - marvell,rd-axpwifiap
+ - netgear,readynas-2120
+ - synology,ds414
+ - const: marvell,armadaxp-mv78230
+ - const: marvell,armadaxp
+ - const: marvell,armada-370-xp
+
+ - items:
+ - const: plathome,openblocks-ax3-4
+ - const: marvell,armadaxp-mv78260
+ - const: marvell,armadaxp
+ - const: marvell,armada-370-xp
+
+ - items:
+ - enum:
+ - marvell,axp-db
+ - marvell,axp-gp
+ - marvell,axp-matrix
+ - const: marvell,armadaxp-mv78460
+ - const: marvell,armadaxp
+ - const: marvell,armada-370-xp
+
+additionalProperties: true
diff --git a/Documentation/devicetree/bindings/arm/marvell/marvell,armada375.yaml b/Documentation/devicetree/bindings/arm/marvell/marvell,armada375.yaml
new file mode 100644
index 000000000000..81c33e46fecc
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/marvell/marvell,armada375.yaml
@@ -0,0 +1,21 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/marvell/marvell,armada375.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Marvell Armada 375 Platform
+
+maintainers:
+ - Andrew Lunn <andrew@lunn.ch>
+ - Gregory Clement <gregory.clement@bootlin.com>
+
+properties:
+ $nodename:
+ const: '/'
+ compatible:
+ items:
+ - const: marvell,a375-db
+ - const: marvell,armada375
+
+additionalProperties: true
diff --git a/Documentation/devicetree/bindings/arm/marvell/marvell,armada390.yaml b/Documentation/devicetree/bindings/arm/marvell/marvell,armada390.yaml
new file mode 100644
index 000000000000..5ff6a5439525
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/marvell/marvell,armada390.yaml
@@ -0,0 +1,32 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/marvell/marvell,armada390.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Marvell Armada 39x Platforms
+
+maintainers:
+ - Andrew Lunn <andrew@lunn.ch>
+ - Gregory Clement <gregory.clement@bootlin.com>
+
+properties:
+ $nodename:
+ const: '/'
+ compatible:
+ oneOf:
+ - items:
+ - const: marvell,a390-db
+ - const: marvell,armada390
+ - items:
+ - enum:
+ - marvell,a398-db
+ - const: marvell,armada398
+ - const: marvell,armada390
+ - items:
+ - enum:
+ - marvell,a395-gp
+ - const: marvell,armada395
+ - const: marvell,armada390
+
+additionalProperties: true
diff --git a/Documentation/devicetree/bindings/arm/marvell/marvell,dove.txt b/Documentation/devicetree/bindings/arm/marvell/marvell,dove.txt
deleted file mode 100644
index aaaf64c56e44..000000000000
--- a/Documentation/devicetree/bindings/arm/marvell/marvell,dove.txt
+++ /dev/null
@@ -1,22 +0,0 @@
-Marvell Dove Platforms Device Tree Bindings
------------------------------------------------
-
-Boards with a Marvell Dove SoC shall have the following properties:
-
-Required root node property:
-- compatible: must contain "marvell,dove";
-
-* Global Configuration registers
-
-Global Configuration registers of Dove SoC are shared by a syscon node.
-
-Required properties:
-- compatible: must contain "marvell,dove-global-config" and "syscon".
-- reg: base address and size of the Global Configuration registers.
-
-Example:
-
-gconf: global-config@e802c {
- compatible = "marvell,dove-global-config", "syscon";
- reg = <0xe802c 0x14>;
-};
diff --git a/Documentation/devicetree/bindings/arm/marvell/marvell,dove.yaml b/Documentation/devicetree/bindings/arm/marvell/marvell,dove.yaml
new file mode 100644
index 000000000000..a37804fb30c4
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/marvell/marvell,dove.yaml
@@ -0,0 +1,35 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/marvell/marvell,dove.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Marvell Dove SoC
+
+maintainers:
+ - Andrew Lunn <andrew@lunn.ch>
+ - Gregory Clement <gregory.clement@bootlin.com>
+
+properties:
+ $nodename:
+ const: '/'
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - compulab,cm-a510
+ - solidrun,cubox
+ - globalscale,d2plug
+ - globalscale,d3plug
+ - marvell,dove-db
+ - const: marvell,dove
+ - items:
+ - const: solidrun,cubox-es
+ - const: solidrun,cubox
+ - const: marvell,dove
+ - items:
+ - const: compulab,sbc-a510
+ - const: compulab,cm-a510
+ - const: marvell,dove
+
+additionalProperties: true
diff --git a/Documentation/devicetree/bindings/arm/marvell/marvell,kirkwood.txt b/Documentation/devicetree/bindings/arm/marvell/marvell,kirkwood.txt
deleted file mode 100644
index 7d28fe4bf654..000000000000
--- a/Documentation/devicetree/bindings/arm/marvell/marvell,kirkwood.txt
+++ /dev/null
@@ -1,105 +0,0 @@
-Marvell Kirkwood SoC Family Device Tree Bindings
-------------------------------------------------
-
-Boards with a SoC of the Marvell Kirkwook family, eg 88f6281
-
-* Required root node properties:
-compatible: must contain "marvell,kirkwood"
-
-In addition, the above compatible shall be extended with the specific
-SoC. Currently known SoC compatibles are:
-
-"marvell,kirkwood-88f6192"
-"marvell,kirkwood-88f6281"
-"marvell,kirkwood-88f6282"
-"marvell,kirkwood-88f6283"
-"marvell,kirkwood-88f6702"
-"marvell,kirkwood-98DX4122"
-
-And in addition, the compatible shall be extended with the specific
-board. Currently known boards are:
-
-"buffalo,linkstation-lsqvl"
-"buffalo,linkstation-lsvl"
-"buffalo,linkstation-lswsxl"
-"buffalo,linkstation-lswxl"
-"buffalo,linkstation-lswvl"
-"buffalo,lschlv2"
-"buffalo,lsxhl"
-"buffalo,lsxl"
-"cloudengines,pogo02"
-"cloudengines,pogoplugv4"
-"dlink,dns-320"
-"dlink,dns-320-a1"
-"dlink,dns-325"
-"dlink,dns-325-a1"
-"dlink,dns-kirkwood"
-"excito,b3"
-"globalscale,dreamplug-003-ds2001"
-"globalscale,guruplug"
-"globalscale,guruplug-server-plus"
-"globalscale,sheevaplug"
-"globalscale,sheevaplug"
-"globalscale,sheevaplug-esata"
-"globalscale,sheevaplug-esata-rev13"
-"iom,iconnect"
-"iom,iconnect-1.1"
-"iom,ix2-200"
-"keymile,km_kirkwood"
-"lacie,cloudbox"
-"lacie,inetspace_v2"
-"lacie,laplug"
-"lacie,nas2big"
-"lacie,netspace_lite_v2"
-"lacie,netspace_max_v2"
-"lacie,netspace_mini_v2"
-"lacie,netspace_v2"
-"marvell,db-88f6281-bp"
-"marvell,db-88f6282-bp"
-"marvell,mv88f6281gtw-ge"
-"marvell,rd88f6281"
-"marvell,rd88f6281"
-"marvell,rd88f6281-a0"
-"marvell,rd88f6281-a1"
-"mpl,cec4"
-"mpl,cec4-10"
-"netgear,readynas"
-"netgear,readynas"
-"netgear,readynas-duo-v2"
-"netgear,readynas-nv+-v2"
-"plathome,openblocks-a6"
-"plathome,openblocks-a7"
-"raidsonic,ib-nas6210"
-"raidsonic,ib-nas6210-b"
-"raidsonic,ib-nas6220"
-"raidsonic,ib-nas6220-b"
-"raidsonic,ib-nas62x0"
-"seagate,dockstar"
-"seagate,goflexnet"
-"synology,ds109"
-"synology,ds110jv10"
-"synology,ds110jv20"
-"synology,ds110jv30"
-"synology,ds111"
-"synology,ds209"
-"synology,ds210jv10"
-"synology,ds210jv20"
-"synology,ds212"
-"synology,ds212jv10"
-"synology,ds212jv20"
-"synology,ds212pv10"
-"synology,ds409"
-"synology,ds409slim"
-"synology,ds410j"
-"synology,ds411"
-"synology,ds411j"
-"synology,ds411slim"
-"synology,ds413jv10"
-"synology,rs212"
-"synology,rs409"
-"synology,rs411"
-"synology,rs812"
-"usi,topkick"
-"usi,topkick-1281P2"
-"zyxel,nsa310"
-"zyxel,nsa310a"
diff --git a/Documentation/devicetree/bindings/arm/marvell/marvell,kirkwood.yaml b/Documentation/devicetree/bindings/arm/marvell/marvell,kirkwood.yaml
new file mode 100644
index 000000000000..120784066833
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/marvell/marvell,kirkwood.yaml
@@ -0,0 +1,266 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/marvell/marvell,kirkwood.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Marvell Kirkwood SoC Family
+
+maintainers:
+ - Andrew Lunn <andrew@lunn.ch>
+ - Gregory Clement <gregory.clement@bootlin.com>
+
+properties:
+ $nodename:
+ const: '/'
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - qnap,ts219
+ - qnap,ts419
+ - synology,ds110
+ - synology,ds111
+ - synology,ds209
+ - synology,ds409slim
+ - synology,ds411j
+ - synology,ds411slim
+ - synology,rs212
+ - synology,rs409
+ - const: marvell,kirkwood
+
+ - items:
+ - const: synology,ds109
+ - const: synology,ds110jv20
+ - const: synology,ds110
+ - const: marvell,kirkwood
+
+ - items:
+ - const: synology,ds110jv10
+ - const: synology,ds110jv30
+ - const: marvell,kirkwood
+
+ - items:
+ - const: synology,ds210jv10
+ - const: synology,ds210jv20
+ - const: synology,ds210jv30
+ - const: synology,ds211j
+ - const: marvell,kirkwood
+
+ - items:
+ - const: synology,ds212jv10
+ - const: synology,ds212jv20
+ - const: marvell,kirkwood
+
+ - items:
+ - const: synology,ds212
+ - const: synology,ds212pv10
+ - const: synology,ds212pv10
+ - const: synology,ds212pv20
+ - const: synology,ds213airv10
+ - const: synology,ds213v10
+ - const: marvell,kirkwood
+
+ - items:
+ - const: synology,ds409
+ - const: synology,ds410j
+ - const: marvell,kirkwood
+
+ - items:
+ - const: synology,ds411
+ - const: synology,ds413jv10
+ - const: marvell,kirkwood
+
+ - items:
+ - const: synology,rs411
+ - const: synology,rs812
+ - const: marvell,kirkwood
+
+ - items:
+ - enum:
+ - cloudengines,pogoplugv4
+ - lacie,laplug
+ - lacie,netspace_lite_v2
+ - lacie,netspace_mini_v2
+ - marvell,rd88f6192
+ - seagate,blackarmor-nas220
+ - enum:
+ - marvell,kirkwood-88f6192
+ - const: marvell,kirkwood
+
+ - items:
+ - enum:
+ - buffalo,lswsxl
+ - buffalo,lswxl
+ - checkpoint,l-50
+ - cloudengines,pogoe02
+ - ctera,c200-v1
+ - dlink,dir-665
+ - endian,4i-edge-200
+ - excito,b3
+ - globalscale,sheevaplug
+ - hp,t5325
+ - iom,ix2-200
+ - lacie,inetspace_v2
+ - lacie,netspace_v2
+ - lacie,netspace_max_v2
+ - marvell,db-88f6281-bp
+ - marvell,mv88f6281gtw-ge
+ - seagate,dockstar
+ - seagate,goflexnet
+ - zyxel,nsa310
+ - zyxel,nsa320
+ - const: marvell,kirkwood-88f6281
+ - const: marvell,kirkwood
+
+ - items:
+ - enum:
+ - buffalo,lschlv2
+ - buffalo,lsxhl
+ - const: buffalo,lsxl
+ - const: marvell,kirkwood-88f6281
+ - const: marvell,kirkwood
+
+ - items:
+ - const: dlink,dns-320-a1
+ - const: dlink,dns-320
+ - const: dlink,dns-kirkwood
+ - const: marvell,kirkwood-88f6281
+ - const: marvell,kirkwood
+
+ - items:
+ - const: dlink,dns-325-a1
+ - const: dlink,dns-325
+ - const: dlink,dns-kirkwood
+ - const: marvell,kirkwood-88f6281
+ - const: marvell,kirkwood
+
+ - items:
+ - const: globalscale,dreamplug-003-ds2001
+ - const: globalscale,dreamplug
+ - const: marvell,kirkwood-88f6281
+ - const: marvell,kirkwood
+
+ - items:
+ - const: globalscale,guruplug-server-plus
+ - const: globalscale,guruplug
+ - const: marvell,kirkwood-88f6281
+ - const: marvell,kirkwood
+
+ - items:
+ - const: globalscale,sheevaplug-esata-rev13
+ - const: globalscale,sheevaplug-esata
+ - const: globalscale,sheevaplug
+ - const: marvell,kirkwood-88f6281
+ - const: marvell,kirkwood
+
+ - items:
+ - const: iom,iconnect-1.1
+ - const: iom,iconnect
+ - const: marvell,kirkwood-88f6281
+ - const: marvell,kirkwood
+
+ - items:
+ - const: lacie,d2net_v2
+ - const: lacie,netxbig
+ - const: marvell,kirkwood-88f6281
+ - const: marvell,kirkwood
+ - items:
+ - enum:
+ - lacie,net2big_v2
+ - lacie,net5big_v2
+ - const: lacie,netxbig
+ - const: marvell,kirkwood-88f6281
+ - const: marvell,kirkwood
+
+ - items:
+ - enum:
+ - marvell,openrd-base
+ - marvell,openrd-client
+ - marvell,openrd-ultimate
+ - const: marvell,openrd
+ - const: marvell,kirkwood-88f6281
+ - const: marvell,kirkwood
+
+ - items:
+ - enum:
+ - marvell,rd88f6281-a
+ - marvell,rd88f6281-z0
+ - const: marvell,rd88f6281
+ - const: marvell,kirkwood-88f6281
+ - const: marvell,kirkwood
+
+ - items:
+ - const: mpl,cec4-10
+ - const: mpl,cec4
+ - const: marvell,kirkwood-88f6281
+ - const: marvell,kirkwood
+
+ - items:
+ - const: raidsonic,ib-nas6210-b
+ - const: raidsonic,ib-nas6220-b
+ - const: raidsonic,ib-nas6210
+ - const: raidsonic,ib-nas6220
+ - const: raidsonic,ib-nas62x0
+ - const: marvell,kirkwood-88f6281
+ - const: marvell,kirkwood
+
+ - items:
+ - const: zyxel,nsa310a
+ - const: zyxel,nsa310
+ - const: marvell,kirkwood-88f6281
+ - const: marvell,kirkwood
+
+ - items:
+ - enum:
+ - buffalo,lsqvl
+ - buffalo,lsvl
+ - buffalo,lswvl
+ - linksys,viper
+ - marvell,db-88f6282-bp
+ - zyxel,nsa325
+ - const: marvell,kirkwood-88f6282
+ - const: marvell,kirkwood
+
+ - items:
+ - const: lacie,nas2big
+ - const: lacie,netxbig
+ - const: marvell,kirkwood-88f6282
+ - const: marvell,kirkwood
+
+ - items:
+ - enum:
+ - netgear,readynas-duo-v2
+ - netgear,readynas-nv+-v2
+ - const: netgear,readynas
+ - const: marvell,kirkwood-88f6282
+ - const: marvell,kirkwood
+
+ - items:
+ - const: usi,topkick-1281P2
+ - const: usi,topkick
+ - const: marvell,kirkwood-88f6282
+ - const: marvell,kirkwood
+
+ - items:
+ - enum:
+ - plathome,openblocks-a6
+ - plathome,openblocks-a7
+ - const: marvell,kirkwood-88f6283
+ - const: marvell,kirkwood
+
+ - items:
+ - enum:
+ - lacie,cloudbox
+ - zyxel,nsa310s
+ - const: marvell,kirkwood-88f6702
+ - const: marvell,kirkwood
+
+ - items:
+ - enum:
+ - keymile,km_fixedeth
+ - keymile,km_kirkwood
+ - const: marvell,kirkwood-98DX4122
+ - const: marvell,kirkwood
+
+additionalProperties: true
diff --git a/Documentation/devicetree/bindings/arm/marvell/marvell,orion5x.txt b/Documentation/devicetree/bindings/arm/marvell/marvell,orion5x.txt
deleted file mode 100644
index 748a8f287462..000000000000
--- a/Documentation/devicetree/bindings/arm/marvell/marvell,orion5x.txt
+++ /dev/null
@@ -1,25 +0,0 @@
-Marvell Orion SoC Family Device Tree Bindings
----------------------------------------------
-
-Boards with a SoC of the Marvell Orion family, eg 88f5181
-
-* Required root node properties:
-compatible: must contain "marvell,orion5x"
-
-In addition, the above compatible shall be extended with the specific
-SoC. Currently known SoC compatibles are:
-
-"marvell,orion5x-88f5181"
-"marvell,orion5x-88f5182"
-
-And in addition, the compatible shall be extended with the specific
-board. Currently known boards are:
-
-"buffalo,lsgl"
-"buffalo,lswsgl"
-"buffalo,lswtgl"
-"lacie,ethernet-disk-mini-v2"
-"lacie,d2-network"
-"marvell,rd-88f5182-nas"
-"maxtor,shared-storage-2"
-"netgear,wnr854t"
diff --git a/Documentation/devicetree/bindings/arm/marvell/marvell,orion5x.yaml b/Documentation/devicetree/bindings/arm/marvell/marvell,orion5x.yaml
new file mode 100644
index 000000000000..c0417591b2be
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/marvell/marvell,orion5x.yaml
@@ -0,0 +1,37 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/marvell/marvell,orion5x.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Marvell Orion5x SoC Family
+
+maintainers:
+ - Andrew Lunn <andrew@lunn.ch>
+ - Gregory Clement <gregory.clement@bootlin.com>
+
+properties:
+ $nodename:
+ const: '/'
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - netgear,wnr854t
+ - const: marvell,orion5x-88f5181
+ - const: marvell,orion5x
+ - items:
+ - enum:
+ - buffalo,kurobox-pro
+ - buffalo,lschl
+ - buffalo,lsgl
+ - buffalo,lswsgl
+ - buffalo,lswtgl
+ - lacie,ethernet-disk-mini-v2
+ - lacie,d2-network
+ - marvell,rd-88f5182-nas
+ - maxtor,shared-storage-2
+ - const: marvell,orion5x-88f5182
+ - const: marvell,orion5x
+
+additionalProperties: true
diff --git a/Documentation/devicetree/bindings/arm/mediatek.yaml b/Documentation/devicetree/bindings/arm/mediatek.yaml
index ae12b1cab9fb..718d732174b9 100644
--- a/Documentation/devicetree/bindings/arm/mediatek.yaml
+++ b/Documentation/devicetree/bindings/arm/mediatek.yaml
@@ -17,6 +17,7 @@ properties:
const: '/'
compatible:
oneOf:
+ # Sort by SoC (last) compatible, then board compatible
- items:
- enum:
- mediatek,mt2701-evb
@@ -28,10 +29,16 @@ properties:
- const: mediatek,mt2712
- items:
- enum:
+ - jty,d101
+ - lenovo,a369i
+ - const: mediatek,mt6572
+ - items:
+ - enum:
- mediatek,mt6580-evbp1
- const: mediatek,mt6580
- items:
- enum:
+ - alcatel,yarisxl
- prestigio,pmt5008-3g
- const: mediatek,mt6582
- items:
@@ -84,7 +91,15 @@ properties:
- const: mediatek,mt7629
- items:
- enum:
+ - cudy,wr3000-v1
+ - openwrt,one
+ - xiaomi,ax3000t
+ - const: mediatek,mt7981b
+ - items:
+ - enum:
+ - acelink,ew-7886cax
- bananapi,bpi-r3
+ - bananapi,bpi-r3mini
- mediatek,mt7986a-rfb
- const: mediatek,mt7986a
- items:
@@ -93,6 +108,20 @@ properties:
- const: mediatek,mt7986b
- items:
- enum:
+ - bananapi,bpi-r4
+ - const: mediatek,mt7988a
+ - items:
+ - const: bananapi,bpi-r4-2g5
+ - const: bananapi,bpi-r4
+ - const: mediatek,mt7988a
+ - items:
+ - enum:
+ - bananapi,bpi-r4-pro-4e
+ - bananapi,bpi-r4-pro-8x
+ - const: bananapi,bpi-r4-pro
+ - const: mediatek,mt7988a
+ - items:
+ - enum:
- mediatek,mt8127-moose
- const: mediatek,mt8127
- items:
@@ -129,60 +158,10 @@ properties:
- enum:
- mediatek,mt8173-evb
- const: mediatek,mt8173
- - items:
- - enum:
- - mediatek,mt8183-evb
- - const: mediatek,mt8183
- - description: Google Hayato
- items:
- - const: google,hayato-rev1
- - const: google,hayato
- - const: mediatek,mt8192
- - description: Google Spherion (Acer Chromebook 514)
- items:
- - const: google,spherion-rev3
- - const: google,spherion-rev2
- - const: google,spherion-rev1
- - const: google,spherion-rev0
- - const: google,spherion
- - const: mediatek,mt8192
- - description: Acer Tomato (Acer Chromebook Spin 513 CP513-2H)
- items:
- - enum:
- - google,tomato-rev2
- - google,tomato-rev1
- - const: google,tomato
- - const: mediatek,mt8195
- - description: Acer Tomato rev3 - 4 (Acer Chromebook Spin 513 CP513-2H)
- items:
- - const: google,tomato-rev4
- - const: google,tomato-rev3
- - const: google,tomato
- - const: mediatek,mt8195
- - items:
- - enum:
- - mediatek,mt8186-evb
- - const: mediatek,mt8186
- - items:
- - enum:
- - mediatek,mt8192-evb
- - const: mediatek,mt8192
- - items:
- - enum:
- - mediatek,mt8195-demo
- - mediatek,mt8195-evb
- - const: mediatek,mt8195
- description: Google Burnet (HP Chromebook x360 11MK G3 EE)
items:
- const: google,burnet
- const: mediatek,mt8183
- - description: Google Krane (Lenovo IdeaPad Duet, 10e,...)
- items:
- - enum:
- - google,krane-sku0
- - google,krane-sku176
- - const: google,krane
- - const: mediatek,mt8183
- description: Google Cozmo (Acer Chromebook 314)
items:
- const: google,cozmo
@@ -224,6 +203,13 @@ properties:
items:
- const: google,kappa
- const: mediatek,mt8183
+ - description: Google Katsu (ASUS Chromebook Detachable CZ1)
+ items:
+ - enum:
+ - google,katsu-sku32
+ - google,katsu-sku38
+ - const: google,katsu
+ - const: mediatek,mt8183
- description: Google Kodama (Lenovo 10e Chromebook Tablet)
items:
- enum:
@@ -233,6 +219,27 @@ properties:
- google,kodama-sku32
- const: google,kodama
- const: mediatek,mt8183
+ - description: Google Krane (Lenovo IdeaPad Duet, 10e,...)
+ items:
+ - enum:
+ - google,krane-sku0
+ - google,krane-sku176
+ - const: google,krane
+ - const: mediatek,mt8183
+ - description: Google Makomo (Lenovo 100e Chromebook 2nd Gen MTK 2)
+ items:
+ - enum:
+ - google,makomo-sku0
+ - google,makomo-sku1
+ - const: google,makomo
+ - const: mediatek,mt8183
+ - description: Google Pico (Acer Chromebook Spin 311)
+ items:
+ - enum:
+ - google,pico-sku1
+ - google,pico-sku2
+ - const: google,pico
+ - const: mediatek,mt8183
- description: Google Willow (Acer Chromebook 311 C722/C722T)
items:
- enum:
@@ -242,14 +249,215 @@ properties:
- const: mediatek,mt8183
- items:
- enum:
+ - mediatek,mt8183-evb
+ - const: mediatek,mt8183
+ - items:
+ - enum:
- mediatek,mt8183-pumpkin
- const: mediatek,mt8183
+ - description: Google Chinchou (Asus Chromebook CZ1104CM2A/CZ1204CM2A)
+ items:
+ - const: google,chinchou-sku0
+ - const: google,chinchou-sku2
+ - const: google,chinchou-sku4
+ - const: google,chinchou-sku5
+ - const: google,chinchou
+ - const: mediatek,mt8186
+ - description: Google Chinchou (Asus Chromebook CZ1104FM2A/CZ1204FM2A/CZ1104CM2A/CZ1204CM2A)
+ items:
+ - const: google,chinchou-sku1
+ - const: google,chinchou-sku3
+ - const: google,chinchou-sku6
+ - const: google,chinchou-sku7
+ - const: google,chinchou-sku17
+ - const: google,chinchou-sku20
+ - const: google,chinchou-sku22
+ - const: google,chinchou-sku23
+ - const: google,chinchou
+ - const: mediatek,mt8186
+ - description: Google Chinchou360 (Asus Chromebook CZ1104FM2A/CZ1204FM2A Flip)
+ items:
+ - const: google,chinchou-sku16
+ - const: google,chinchou-sku18
+ - const: google,chinchou-sku19
+ - const: google,chinchou-sku21
+ - const: google,chinchou
+ - const: mediatek,mt8186
+ - description: Google Magneton (Lenovo IdeaPad Slim 3 Chromebook (14M868))
+ items:
+ - const: google,steelix-sku393219
+ - const: google,steelix-sku393216
+ - const: google,steelix
+ - const: mediatek,mt8186
+ - description: Google Magneton (Lenovo IdeaPad Slim 3 Chromebook (14M868))
+ items:
+ - const: google,steelix-sku393220
+ - const: google,steelix-sku393217
+ - const: google,steelix
+ - const: mediatek,mt8186
+ - description: Google Magneton (Lenovo IdeaPad Slim 3 Chromebook (14M868))
+ items:
+ - const: google,steelix-sku393221
+ - const: google,steelix-sku393218
+ - const: google,steelix
+ - const: mediatek,mt8186
+ - description: Google Ponyta
+ items:
+ - enum:
+ - google,ponyta-sku0
+ - google,ponyta-sku1
+ - const: google,ponyta
+ - const: mediatek,mt8186
+ - description: Google Rusty (Lenovo 100e Chromebook Gen 4)
+ items:
+ - const: google,steelix-sku196609
+ - const: google,steelix-sku196608
+ - const: google,steelix
+ - const: mediatek,mt8186
+ - description: Google Squirtle (Acer Chromebook Spin 311 (R724T)
+ items:
+ - const: google,squirtle
+ - const: mediatek,mt8186
+ - description: Google Starmie (ASUS Chromebook Enterprise CM30 (CM3001))
+ items:
+ - const: google,starmie-sku0
+ - const: google,starmie-sku2
+ - const: google,starmie-sku3
+ - const: google,starmie
+ - const: mediatek,mt8186
+ - description: Google Starmie (ASUS Chromebook Enterprise CM30 (CM3001))
+ items:
+ - const: google,starmie-sku1
+ - const: google,starmie-sku4
+ - const: google,starmie
+ - const: mediatek,mt8186
+ - description: Google Steelix (Lenovo 300e Yoga Chromebook Gen 4)
+ items:
+ - enum:
+ - google,steelix-sku131072
+ - google,steelix-sku131073
+ - const: google,steelix
+ - const: mediatek,mt8186
+ - description: Google Tentacruel (ASUS Chromebook CM14 Flip CM1402F)
+ items:
+ - const: google,tentacruel-sku262147
+ - const: google,tentacruel-sku262146
+ - const: google,tentacruel-sku262145
+ - const: google,tentacruel-sku262144
+ - const: google,tentacruel
+ - const: mediatek,mt8186
+ - description: Google Tentacruel (ASUS Chromebook CM14 Flip CM1402F)
+ items:
+ - const: google,tentacruel-sku262151
+ - const: google,tentacruel-sku262150
+ - const: google,tentacruel-sku262149
+ - const: google,tentacruel-sku262148
+ - const: google,tentacruel
+ - const: mediatek,mt8186
+ - description: Google Tentacool (ASUS Chromebook CM14 CM1402C)
+ items:
+ - const: google,tentacruel-sku327681
+ - const: google,tentacruel
+ - const: mediatek,mt8186
+ - description: Google Tentacool (ASUS Chromebook CM14 CM1402C)
+ items:
+ - const: google,tentacruel-sku327683
+ - const: google,tentacruel
+ - const: mediatek,mt8186
+ - description: Google Voltorb (Acer Chromebook 311 C723/C732T)
+ items:
+ - const: google,voltorb
+ - const: mediatek,mt8186
+ - items:
+ - enum:
+ - mediatek,mt8186-evb
+ - const: mediatek,mt8186
+ - description: Google Ciri (Lenovo Chromebook Duet (11", 9))
+ items:
+ - enum:
+ - google,ciri-sku0
+ - google,ciri-sku1
+ - google,ciri-sku2
+ - google,ciri-sku3
+ - google,ciri-sku4
+ - google,ciri-sku5
+ - google,ciri-sku6
+ - google,ciri-sku7
+ - const: google,ciri
+ - const: mediatek,mt8188
+ - items:
+ - enum:
+ - mediatek,mt8188-evb
+ - const: mediatek,mt8188
+ - description: Google Hayato
+ items:
+ - const: google,hayato-rev1
+ - const: google,hayato
+ - const: mediatek,mt8192
+ - description: Google Spherion (Acer Chromebook 514)
+ items:
+ - const: google,spherion-rev3
+ - const: google,spherion-rev2
+ - const: google,spherion-rev1
+ - const: google,spherion-rev0
+ - const: google,spherion
+ - const: mediatek,mt8192
+ - items:
+ - enum:
+ - mediatek,mt8192-evb
+ - const: mediatek,mt8192
+ - description: Acer Tomato (Acer Chromebook Spin 513 CP513-2H)
+ items:
+ - enum:
+ - google,tomato-rev2
+ - google,tomato-rev1
+ - const: google,tomato
+ - const: mediatek,mt8195
+ - description: Acer Tomato rev3 - 4 (Acer Chromebook Spin 513 CP513-2H)
+ items:
+ - const: google,tomato-rev4
+ - const: google,tomato-rev3
+ - const: google,tomato
+ - const: mediatek,mt8195
+ - description: HP Dojo sku1, 3, 5, 7 (HP Chromebook x360 13b-ca0002sa)
+ items:
+ - const: google,dojo-sku7
+ - const: google,dojo-sku5
+ - const: google,dojo-sku3
+ - const: google,dojo-sku1
+ - const: google,dojo
+ - const: mediatek,mt8195
+ - items:
+ - enum:
+ - mediatek,mt8195-demo
+ - mediatek,mt8195-evb
+ - const: mediatek,mt8195
- items:
- enum:
- mediatek,mt8365-evk
- const: mediatek,mt8365
- items:
- enum:
+ - grinn,genio-510-sbc
+ - mediatek,mt8370-evk
+ - const: mediatek,mt8370
+ - const: mediatek,mt8188
+ - items:
+ - enum:
+ - grinn,genio-700-sbc
+ - mediatek,mt8390-evk
+ - const: mediatek,mt8390
+ - const: mediatek,mt8188
+ - items:
+ - enum:
+ - kontron,3-5-sbc-i1200
+ - mediatek,mt8395-evk
+ - mediatek,mt8395-evk-ufs
+ - radxa,nio-12l
+ - const: mediatek,mt8395
+ - const: mediatek,mt8195
+ - items:
+ - enum:
- mediatek,mt8516-pumpkin
- const: mediatek,mt8516
diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,audsys.txt b/Documentation/devicetree/bindings/arm/mediatek/mediatek,audsys.txt
deleted file mode 100644
index 699776be1dd3..000000000000
--- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,audsys.txt
+++ /dev/null
@@ -1,39 +0,0 @@
-MediaTek AUDSYS controller
-============================
-
-The MediaTek AUDSYS controller provides various clocks to the system.
-
-Required Properties:
-
-- compatible: Should be one of:
- - "mediatek,mt2701-audsys", "syscon"
- - "mediatek,mt6765-audsys", "syscon"
- - "mediatek,mt6779-audio", "syscon"
- - "mediatek,mt7622-audsys", "syscon"
- - "mediatek,mt7623-audsys", "mediatek,mt2701-audsys", "syscon"
- - "mediatek,mt8167-audiosys", "syscon"
- - "mediatek,mt8183-audiosys", "syscon"
- - "mediatek,mt8192-audsys", "syscon"
- - "mediatek,mt8516-audsys", "syscon"
-- #clock-cells: Must be 1
-
-The AUDSYS controller uses the common clk binding from
-Documentation/devicetree/bindings/clock/clock-bindings.txt
-The available clocks are defined in dt-bindings/clock/mt*-clk.h.
-
-Required sub-nodes:
--------
-For common binding part and usage, refer to
-../sonud/mt2701-afe-pcm.txt.
-
-Example:
-
- audsys: clock-controller@11220000 {
- compatible = "mediatek,mt7622-audsys", "syscon";
- reg = <0 0x11220000 0 0x2000>;
- #clock-cells = <1>;
-
- afe: audio-controller {
- ...
- };
- };
diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,audsys.yaml b/Documentation/devicetree/bindings/arm/mediatek/mediatek,audsys.yaml
new file mode 100644
index 000000000000..f3a761cbd0fd
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,audsys.yaml
@@ -0,0 +1,167 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/mediatek/mediatek,audsys.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek AUDSYS controller
+
+maintainers:
+ - Eugen Hristev <eugen.hristev@collabora.com>
+
+description:
+ The MediaTek AUDSYS controller provides various clocks to the system.
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - mediatek,mt2701-audsys
+ - mediatek,mt6765-audsys
+ - mediatek,mt6779-audsys
+ - mediatek,mt7622-audsys
+ - mediatek,mt8167-audsys
+ - mediatek,mt8173-audsys
+ - mediatek,mt8183-audiosys
+ - mediatek,mt8183-audsys
+ - mediatek,mt8186-audsys
+ - mediatek,mt8192-audsys
+ - mediatek,mt8516-audsys
+ - const: syscon
+ - items:
+ # Special case for mt7623 for backward compatibility
+ - const: mediatek,mt7623-audsys
+ - const: mediatek,mt2701-audsys
+ - const: syscon
+
+ reg:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 1
+
+ audio-controller:
+ type: object
+
+required:
+ - compatible
+ - '#clock-cells'
+
+if:
+ properties:
+ compatible:
+ contains:
+ const: mediatek,mt8183-audiosys
+then:
+ properties:
+ audio-controller:
+ $ref: /schemas/sound/mediatek,mt8183-audio.yaml#
+else:
+ properties:
+ audio-controller:
+ $ref: /schemas/sound/mediatek,mt2701-audio.yaml#
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/power/mt2701-power.h>
+ #include <dt-bindings/clock/mt2701-clk.h>
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ audsys: clock-controller@11220000 {
+ compatible = "mediatek,mt7622-audsys", "syscon";
+ reg = <0 0x11220000 0 0x2000>;
+ #clock-cells = <1>;
+
+ afe: audio-controller {
+ compatible = "mediatek,mt2701-audio";
+ interrupts = <GIC_SPI 104 IRQ_TYPE_LEVEL_LOW>,
+ <GIC_SPI 132 IRQ_TYPE_LEVEL_LOW>;
+ interrupt-names = "afe", "asys";
+ power-domains = <&scpsys MT2701_POWER_DOMAIN_IFR_MSC>;
+
+ clocks = <&infracfg CLK_INFRA_AUDIO>,
+ <&topckgen CLK_TOP_AUD_MUX1_SEL>,
+ <&topckgen CLK_TOP_AUD_MUX2_SEL>,
+ <&topckgen CLK_TOP_AUD_48K_TIMING>,
+ <&topckgen CLK_TOP_AUD_44K_TIMING>,
+ <&topckgen CLK_TOP_AUD_K1_SRC_SEL>,
+ <&topckgen CLK_TOP_AUD_K2_SRC_SEL>,
+ <&topckgen CLK_TOP_AUD_K3_SRC_SEL>,
+ <&topckgen CLK_TOP_AUD_K4_SRC_SEL>,
+ <&topckgen CLK_TOP_AUD_K1_SRC_DIV>,
+ <&topckgen CLK_TOP_AUD_K2_SRC_DIV>,
+ <&topckgen CLK_TOP_AUD_K3_SRC_DIV>,
+ <&topckgen CLK_TOP_AUD_K4_SRC_DIV>,
+ <&topckgen CLK_TOP_AUD_I2S1_MCLK>,
+ <&topckgen CLK_TOP_AUD_I2S2_MCLK>,
+ <&topckgen CLK_TOP_AUD_I2S3_MCLK>,
+ <&topckgen CLK_TOP_AUD_I2S4_MCLK>,
+ <&audsys CLK_AUD_I2SO1>,
+ <&audsys CLK_AUD_I2SO2>,
+ <&audsys CLK_AUD_I2SO3>,
+ <&audsys CLK_AUD_I2SO4>,
+ <&audsys CLK_AUD_I2SIN1>,
+ <&audsys CLK_AUD_I2SIN2>,
+ <&audsys CLK_AUD_I2SIN3>,
+ <&audsys CLK_AUD_I2SIN4>,
+ <&audsys CLK_AUD_ASRCO1>,
+ <&audsys CLK_AUD_ASRCO2>,
+ <&audsys CLK_AUD_ASRCO3>,
+ <&audsys CLK_AUD_ASRCO4>,
+ <&audsys CLK_AUD_AFE>,
+ <&audsys CLK_AUD_AFE_CONN>,
+ <&audsys CLK_AUD_A1SYS>,
+ <&audsys CLK_AUD_A2SYS>,
+ <&audsys CLK_AUD_AFE_MRGIF>;
+
+ clock-names = "infra_sys_audio_clk",
+ "top_audio_mux1_sel",
+ "top_audio_mux2_sel",
+ "top_audio_a1sys_hp",
+ "top_audio_a2sys_hp",
+ "i2s0_src_sel",
+ "i2s1_src_sel",
+ "i2s2_src_sel",
+ "i2s3_src_sel",
+ "i2s0_src_div",
+ "i2s1_src_div",
+ "i2s2_src_div",
+ "i2s3_src_div",
+ "i2s0_mclk_en",
+ "i2s1_mclk_en",
+ "i2s2_mclk_en",
+ "i2s3_mclk_en",
+ "i2so0_hop_ck",
+ "i2so1_hop_ck",
+ "i2so2_hop_ck",
+ "i2so3_hop_ck",
+ "i2si0_hop_ck",
+ "i2si1_hop_ck",
+ "i2si2_hop_ck",
+ "i2si3_hop_ck",
+ "asrc0_out_ck",
+ "asrc1_out_ck",
+ "asrc2_out_ck",
+ "asrc3_out_ck",
+ "audio_afe_pd",
+ "audio_afe_conn_pd",
+ "audio_a1sys_pd",
+ "audio_a2sys_pd",
+ "audio_mrgif_pd";
+
+ assigned-clocks = <&topckgen CLK_TOP_AUD_MUX1_SEL>,
+ <&topckgen CLK_TOP_AUD_MUX2_SEL>,
+ <&topckgen CLK_TOP_AUD_MUX1_DIV>,
+ <&topckgen CLK_TOP_AUD_MUX2_DIV>;
+ assigned-clock-parents = <&topckgen CLK_TOP_AUD1PLL_98M>,
+ <&topckgen CLK_TOP_AUD2PLL_90M>;
+ assigned-clock-rates = <0>, <0>, <49152000>, <45158400>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,bdpsys.txt b/Documentation/devicetree/bindings/arm/mediatek/mediatek,bdpsys.txt
deleted file mode 100644
index 149567a38215..000000000000
--- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,bdpsys.txt
+++ /dev/null
@@ -1,24 +0,0 @@
-Mediatek bdpsys controller
-============================
-
-The Mediatek bdpsys controller provides various clocks to the system.
-
-Required Properties:
-
-- compatible: Should be:
- - "mediatek,mt2701-bdpsys", "syscon"
- - "mediatek,mt2712-bdpsys", "syscon"
- - "mediatek,mt7623-bdpsys", "mediatek,mt2701-bdpsys", "syscon"
-- #clock-cells: Must be 1
-
-The bdpsys controller uses the common clk binding from
-Documentation/devicetree/bindings/clock/clock-bindings.txt
-The available clocks are defined in dt-bindings/clock/mt*-clk.h.
-
-Example:
-
-bdpsys: clock-controller@1c000000 {
- compatible = "mediatek,mt2701-bdpsys", "syscon";
- reg = <0 0x1c000000 0 0x1000>;
- #clock-cells = <1>;
-};
diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,camsys.txt b/Documentation/devicetree/bindings/arm/mediatek/mediatek,camsys.txt
deleted file mode 100644
index a0ce82085ad0..000000000000
--- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,camsys.txt
+++ /dev/null
@@ -1,24 +0,0 @@
-MediaTek CAMSYS controller
-============================
-
-The MediaTek camsys controller provides various clocks to the system.
-
-Required Properties:
-
-- compatible: Should be one of:
- - "mediatek,mt6765-camsys", "syscon"
- - "mediatek,mt6779-camsys", "syscon"
- - "mediatek,mt8183-camsys", "syscon"
-- #clock-cells: Must be 1
-
-The camsys controller uses the common clk binding from
-Documentation/devicetree/bindings/clock/clock-bindings.txt
-The available clocks are defined in dt-bindings/clock/mt*-clk.h.
-
-Example:
-
-camsys: camsys@1a000000 {
- compatible = "mediatek,mt8183-camsys", "syscon";
- reg = <0 0x1a000000 0 0x1000>;
- #clock-cells = <1>;
-};
diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,ethsys.txt b/Documentation/devicetree/bindings/arm/mediatek/mediatek,ethsys.txt
deleted file mode 100644
index eccd4b706a78..000000000000
--- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,ethsys.txt
+++ /dev/null
@@ -1,29 +0,0 @@
-Mediatek ethsys controller
-============================
-
-The Mediatek ethsys controller provides various clocks to the system.
-
-Required Properties:
-
-- compatible: Should be:
- - "mediatek,mt2701-ethsys", "syscon"
- - "mediatek,mt7622-ethsys", "syscon"
- - "mediatek,mt7623-ethsys", "mediatek,mt2701-ethsys", "syscon"
- - "mediatek,mt7629-ethsys", "syscon"
- - "mediatek,mt7981-ethsys", "syscon"
- - "mediatek,mt7986-ethsys", "syscon"
-- #clock-cells: Must be 1
-- #reset-cells: Must be 1
-
-The ethsys controller uses the common clk binding from
-Documentation/devicetree/bindings/clock/clock-bindings.txt
-The available clocks are defined in dt-bindings/clock/mt*-clk.h.
-
-Example:
-
-ethsys: clock-controller@1b000000 {
- compatible = "mediatek,mt2701-ethsys", "syscon";
- reg = <0 0x1b000000 0 0x1000>;
- #clock-cells = <1>;
- #reset-cells = <1>;
-};
diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,hifsys.txt b/Documentation/devicetree/bindings/arm/mediatek/mediatek,hifsys.txt
deleted file mode 100644
index 323905af82c3..000000000000
--- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,hifsys.txt
+++ /dev/null
@@ -1,26 +0,0 @@
-Mediatek hifsys controller
-============================
-
-The Mediatek hifsys controller provides various clocks and reset
-outputs to the system.
-
-Required Properties:
-
-- compatible: Should be:
- - "mediatek,mt2701-hifsys", "syscon"
- - "mediatek,mt7622-hifsys", "syscon"
- - "mediatek,mt7623-hifsys", "mediatek,mt2701-hifsys", "syscon"
-- #clock-cells: Must be 1
-
-The hifsys controller uses the common clk binding from
-Documentation/devicetree/bindings/clock/clock-bindings.txt
-The available clocks are defined in dt-bindings/clock/mt*-clk.h.
-
-Example:
-
-hifsys: clock-controller@1a000000 {
- compatible = "mediatek,mt2701-hifsys", "syscon";
- reg = <0 0x1a000000 0 0x1000>;
- #clock-cells = <1>;
- #reset-cells = <1>;
-};
diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,imgsys.txt b/Documentation/devicetree/bindings/arm/mediatek/mediatek,imgsys.txt
deleted file mode 100644
index dce4c9241932..000000000000
--- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,imgsys.txt
+++ /dev/null
@@ -1,30 +0,0 @@
-Mediatek imgsys controller
-============================
-
-The Mediatek imgsys controller provides various clocks to the system.
-
-Required Properties:
-
-- compatible: Should be one of:
- - "mediatek,mt2701-imgsys", "syscon"
- - "mediatek,mt2712-imgsys", "syscon"
- - "mediatek,mt6765-imgsys", "syscon"
- - "mediatek,mt6779-imgsys", "syscon"
- - "mediatek,mt6797-imgsys", "syscon"
- - "mediatek,mt7623-imgsys", "mediatek,mt2701-imgsys", "syscon"
- - "mediatek,mt8167-imgsys", "syscon"
- - "mediatek,mt8173-imgsys", "syscon"
- - "mediatek,mt8183-imgsys", "syscon"
-- #clock-cells: Must be 1
-
-The imgsys controller uses the common clk binding from
-Documentation/devicetree/bindings/clock/clock-bindings.txt
-The available clocks are defined in dt-bindings/clock/mt*-clk.h.
-
-Example:
-
-imgsys: clock-controller@15000000 {
- compatible = "mediatek,mt8173-imgsys", "syscon";
- reg = <0 0x15000000 0 0x1000>;
- #clock-cells = <1>;
-};
diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,ipesys.txt b/Documentation/devicetree/bindings/arm/mediatek/mediatek,ipesys.txt
deleted file mode 100644
index 2ce889b023d9..000000000000
--- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,ipesys.txt
+++ /dev/null
@@ -1,22 +0,0 @@
-Mediatek ipesys controller
-============================
-
-The Mediatek ipesys controller provides various clocks to the system.
-
-Required Properties:
-
-- compatible: Should be one of:
- - "mediatek,mt6779-ipesys", "syscon"
-- #clock-cells: Must be 1
-
-The ipesys controller uses the common clk binding from
-Documentation/devicetree/bindings/clock/clock-bindings.txt
-The available clocks are defined in dt-bindings/clock/mt*-clk.h.
-
-Example:
-
-ipesys: clock-controller@1b000000 {
- compatible = "mediatek,mt6779-ipesys", "syscon";
- reg = <0 0x1b000000 0 0x1000>;
- #clock-cells = <1>;
-};
diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,ipu.txt b/Documentation/devicetree/bindings/arm/mediatek/mediatek,ipu.txt
deleted file mode 100644
index aabc8c5c8ed2..000000000000
--- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,ipu.txt
+++ /dev/null
@@ -1,43 +0,0 @@
-Mediatek IPU controller
-============================
-
-The Mediatek ipu controller provides various clocks to the system.
-
-Required Properties:
-
-- compatible: Should be one of:
- - "mediatek,mt8183-ipu_conn", "syscon"
- - "mediatek,mt8183-ipu_adl", "syscon"
- - "mediatek,mt8183-ipu_core0", "syscon"
- - "mediatek,mt8183-ipu_core1", "syscon"
-- #clock-cells: Must be 1
-
-The ipu controller uses the common clk binding from
-Documentation/devicetree/bindings/clock/clock-bindings.txt
-The available clocks are defined in dt-bindings/clock/mt*-clk.h.
-
-Example:
-
-ipu_conn: syscon@19000000 {
- compatible = "mediatek,mt8183-ipu_conn", "syscon";
- reg = <0 0x19000000 0 0x1000>;
- #clock-cells = <1>;
-};
-
-ipu_adl: syscon@19010000 {
- compatible = "mediatek,mt8183-ipu_adl", "syscon";
- reg = <0 0x19010000 0 0x1000>;
- #clock-cells = <1>;
-};
-
-ipu_core0: syscon@19180000 {
- compatible = "mediatek,mt8183-ipu_core0", "syscon";
- reg = <0 0x19180000 0 0x1000>;
- #clock-cells = <1>;
-};
-
-ipu_core1: syscon@19280000 {
- compatible = "mediatek,mt8183-ipu_core1", "syscon";
- reg = <0 0x19280000 0 0x1000>;
- #clock-cells = <1>;
-};
diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,jpgdecsys.txt b/Documentation/devicetree/bindings/arm/mediatek/mediatek,jpgdecsys.txt
deleted file mode 100644
index 2df799cd06a7..000000000000
--- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,jpgdecsys.txt
+++ /dev/null
@@ -1,22 +0,0 @@
-Mediatek jpgdecsys controller
-============================
-
-The Mediatek jpgdecsys controller provides various clocks to the system.
-
-Required Properties:
-
-- compatible: Should be:
- - "mediatek,mt2712-jpgdecsys", "syscon"
-- #clock-cells: Must be 1
-
-The jpgdecsys controller uses the common clk binding from
-Documentation/devicetree/bindings/clock/clock-bindings.txt
-The available clocks are defined in dt-bindings/clock/mt*-clk.h.
-
-Example:
-
-jpgdecsys: syscon@19000000 {
- compatible = "mediatek,mt2712-jpgdecsys", "syscon";
- reg = <0 0x19000000 0 0x1000>;
- #clock-cells = <1>;
-};
diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mcucfg.txt b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mcucfg.txt
deleted file mode 100644
index 2b882b7ca72e..000000000000
--- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mcucfg.txt
+++ /dev/null
@@ -1,23 +0,0 @@
-Mediatek mcucfg controller
-============================
-
-The Mediatek mcucfg controller provides various clocks to the system.
-
-Required Properties:
-
-- compatible: Should be one of:
- - "mediatek,mt2712-mcucfg", "syscon"
- - "mediatek,mt8183-mcucfg", "syscon"
-- #clock-cells: Must be 1
-
-The mcucfg controller uses the common clk binding from
-Documentation/devicetree/bindings/clock/clock-bindings.txt
-The available clocks are defined in dt-bindings/clock/mt*-clk.h.
-
-Example:
-
-mcucfg: syscon@10220000 {
- compatible = "mediatek,mt2712-mcucfg", "syscon";
- reg = <0 0x10220000 0 0x1000>;
- #clock-cells = <1>;
-};
diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mfgcfg.txt b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mfgcfg.txt
deleted file mode 100644
index 054424fb64b4..000000000000
--- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mfgcfg.txt
+++ /dev/null
@@ -1,25 +0,0 @@
-Mediatek mfgcfg controller
-============================
-
-The Mediatek mfgcfg controller provides various clocks to the system.
-
-Required Properties:
-
-- compatible: Should be one of:
- - "mediatek,mt2712-mfgcfg", "syscon"
- - "mediatek,mt6779-mfgcfg", "syscon"
- - "mediatek,mt8167-mfgcfg", "syscon"
- - "mediatek,mt8183-mfgcfg", "syscon"
-- #clock-cells: Must be 1
-
-The mfgcfg controller uses the common clk binding from
-Documentation/devicetree/bindings/clock/clock-bindings.txt
-The available clocks are defined in dt-bindings/clock/mt*-clk.h.
-
-Example:
-
-mfgcfg: syscon@13000000 {
- compatible = "mediatek,mt2712-mfgcfg", "syscon";
- reg = <0 0x13000000 0 0x1000>;
- #clock-cells = <1>;
-};
diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mipi0a.txt b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mipi0a.txt
deleted file mode 100644
index 8be5978f388d..000000000000
--- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mipi0a.txt
+++ /dev/null
@@ -1,28 +0,0 @@
-Mediatek mipi0a (mipi_rx_ana_csi0a) controller
-============================
-
-The Mediatek mipi0a controller provides various clocks
-to the system.
-
-Required Properties:
-
-- compatible: Should be one of:
- - "mediatek,mt6765-mipi0a", "syscon"
-- #clock-cells: Must be 1
-
-The mipi0a controller uses the common clk binding from
-Documentation/devicetree/bindings/clock/clock-bindings.txt
-The available clocks are defined in dt-bindings/clock/mt*-clk.h.
-
-The mipi0a controller also uses the common power domain from
-Documentation/devicetree/bindings/soc/mediatek/scpsys.txt
-The available power doamins are defined in dt-bindings/power/mt*-power.h.
-
-Example:
-
-mipi0a: clock-controller@11c10000 {
- compatible = "mediatek,mt6765-mipi0a", "syscon";
- reg = <0 0x11c10000 0 0x1000>;
- power-domains = <&scpsys MT6765_POWER_DOMAIN_CAM>;
- #clock-cells = <1>;
-};
diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.yaml b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.yaml
index 536f5a5ebd24..3f4262e93c78 100644
--- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.yaml
+++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.yaml
@@ -32,6 +32,9 @@ properties:
- mediatek,mt8183-mmsys
- mediatek,mt8186-mmsys
- mediatek,mt8188-vdosys0
+ - mediatek,mt8188-vdosys1
+ - mediatek,mt8188-vppsys0
+ - mediatek,mt8188-vppsys1
- mediatek,mt8192-mmsys
- mediatek,mt8195-vdosys1
- mediatek,mt8195-vppsys0
@@ -90,6 +93,34 @@ properties:
'#reset-cells':
const: 1
+ port:
+ $ref: /schemas/graph.yaml#/properties/port
+ description:
+ Output port node. This port connects the MMSYS/VDOSYS output to
+ the first component of one display pipeline, for example one of
+ the available OVL or RDMA blocks.
+ Some MediaTek SoCs support multiple display outputs per MMSYS.
+ properties:
+ endpoint@0:
+ $ref: /schemas/graph.yaml#/properties/endpoint
+ description: Output to the primary display pipeline
+
+ endpoint@1:
+ $ref: /schemas/graph.yaml#/properties/endpoint
+ description: Output to the secondary display pipeline
+
+ endpoint@2:
+ $ref: /schemas/graph.yaml#/properties/endpoint
+ description: Output to the tertiary display pipeline
+
+ anyOf:
+ - required:
+ - endpoint@0
+ - required:
+ - endpoint@1
+ - required:
+ - endpoint@2
+
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7622-wed.yaml b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7622-wed.yaml
index 28ded09d72e3..e7720caf31b3 100644
--- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7622-wed.yaml
+++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7622-wed.yaml
@@ -22,6 +22,7 @@ properties:
- mediatek,mt7622-wed
- mediatek,mt7981-wed
- mediatek,mt7986-wed
+ - mediatek,mt7988-wed
- const: syscon
reg:
diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,pciesys.txt b/Documentation/devicetree/bindings/arm/mediatek/mediatek,pciesys.txt
deleted file mode 100644
index d179a61536f4..000000000000
--- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,pciesys.txt
+++ /dev/null
@@ -1,25 +0,0 @@
-MediaTek PCIESYS controller
-============================
-
-The MediaTek PCIESYS controller provides various clocks to the system.
-
-Required Properties:
-
-- compatible: Should be:
- - "mediatek,mt7622-pciesys", "syscon"
- - "mediatek,mt7629-pciesys", "syscon"
-- #clock-cells: Must be 1
-- #reset-cells: Must be 1
-
-The PCIESYS controller uses the common clk binding from
-Documentation/devicetree/bindings/clock/clock-bindings.txt
-The available clocks are defined in dt-bindings/clock/mt*-clk.h.
-
-Example:
-
-pciesys: pciesys@1a100800 {
- compatible = "mediatek,mt7622-pciesys", "syscon";
- reg = <0 0x1a100800 0 0x1000>;
- #clock-cells = <1>;
- #reset-cells = <1>;
-};
diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,ssusbsys.txt b/Documentation/devicetree/bindings/arm/mediatek/mediatek,ssusbsys.txt
deleted file mode 100644
index 7cb02c930613..000000000000
--- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,ssusbsys.txt
+++ /dev/null
@@ -1,25 +0,0 @@
-MediaTek SSUSBSYS controller
-============================
-
-The MediaTek SSUSBSYS controller provides various clocks to the system.
-
-Required Properties:
-
-- compatible: Should be:
- - "mediatek,mt7622-ssusbsys", "syscon"
- - "mediatek,mt7629-ssusbsys", "syscon"
-- #clock-cells: Must be 1
-- #reset-cells: Must be 1
-
-The SSUSBSYS controller uses the common clk binding from
-Documentation/devicetree/bindings/clock/clock-bindings.txt
-The available clocks are defined in dt-bindings/clock/mt*-clk.h.
-
-Example:
-
-ssusbsys: ssusbsys@1a000000 {
- compatible = "mediatek,mt7622-ssusbsys", "syscon";
- reg = <0 0x1a000000 0 0x1000>;
- #clock-cells = <1>;
- #reset-cells = <1>;
-};
diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,vcodecsys.txt b/Documentation/devicetree/bindings/arm/mediatek/mediatek,vcodecsys.txt
deleted file mode 100644
index c877bcc1a5c5..000000000000
--- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,vcodecsys.txt
+++ /dev/null
@@ -1,27 +0,0 @@
-Mediatek vcodecsys controller
-============================
-
-The Mediatek vcodecsys controller provides various clocks to the system.
-
-Required Properties:
-
-- compatible: Should be one of:
- - "mediatek,mt6765-vcodecsys", "syscon"
-- #clock-cells: Must be 1
-
-The vcodecsys controller uses the common clk binding from
-Documentation/devicetree/bindings/clock/clock-bindings.txt
-The available clocks are defined in dt-bindings/clock/mt*-clk.h.
-
-The vcodecsys controller also uses the common power domain from
-Documentation/devicetree/bindings/soc/mediatek/scpsys.txt
-The available power doamins are defined in dt-bindings/power/mt*-power.h.
-
-Example:
-
-venc_gcon: clock-controller@17000000 {
- compatible = "mediatek,mt6765-vcodecsys", "syscon";
- reg = <0 0x17000000 0 0x10000>;
- power-domains = <&scpsys MT6765_POWER_DOMAIN_VCODEC>;
- #clock-cells = <1>;
-};
diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,vdecsys.txt b/Documentation/devicetree/bindings/arm/mediatek/mediatek,vdecsys.txt
deleted file mode 100644
index 98195169176a..000000000000
--- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,vdecsys.txt
+++ /dev/null
@@ -1,29 +0,0 @@
-Mediatek vdecsys controller
-============================
-
-The Mediatek vdecsys controller provides various clocks to the system.
-
-Required Properties:
-
-- compatible: Should be one of:
- - "mediatek,mt2701-vdecsys", "syscon"
- - "mediatek,mt2712-vdecsys", "syscon"
- - "mediatek,mt6779-vdecsys", "syscon"
- - "mediatek,mt6797-vdecsys", "syscon"
- - "mediatek,mt7623-vdecsys", "mediatek,mt2701-vdecsys", "syscon"
- - "mediatek,mt8167-vdecsys", "syscon"
- - "mediatek,mt8173-vdecsys", "syscon"
- - "mediatek,mt8183-vdecsys", "syscon"
-- #clock-cells: Must be 1
-
-The vdecsys controller uses the common clk binding from
-Documentation/devicetree/bindings/clock/clock-bindings.txt
-The available clocks are defined in dt-bindings/clock/mt*-clk.h.
-
-Example:
-
-vdecsys: clock-controller@16000000 {
- compatible = "mediatek,mt8173-vdecsys", "syscon";
- reg = <0 0x16000000 0 0x1000>;
- #clock-cells = <1>;
-};
diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,vencltsys.txt b/Documentation/devicetree/bindings/arm/mediatek/mediatek,vencltsys.txt
deleted file mode 100644
index 3cc299fd7857..000000000000
--- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,vencltsys.txt
+++ /dev/null
@@ -1,22 +0,0 @@
-Mediatek vencltsys controller
-============================
-
-The Mediatek vencltsys controller provides various clocks to the system.
-
-Required Properties:
-
-- compatible: Should be:
- - "mediatek,mt8173-vencltsys", "syscon"
-- #clock-cells: Must be 1
-
-The vencltsys controller uses the common clk binding from
-Documentation/devicetree/bindings/clock/clock-bindings.txt
-The available clocks are defined in dt-bindings/clock/mt*-clk.h.
-
-Example:
-
-vencltsys: clock-controller@19000000 {
- compatible = "mediatek,mt8173-vencltsys", "syscon";
- reg = <0 0x19000000 0 0x1000>;
- #clock-cells = <1>;
-};
diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,vencsys.txt b/Documentation/devicetree/bindings/arm/mediatek/mediatek,vencsys.txt
deleted file mode 100644
index 6a6a14e15cd7..000000000000
--- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,vencsys.txt
+++ /dev/null
@@ -1,26 +0,0 @@
-Mediatek vencsys controller
-============================
-
-The Mediatek vencsys controller provides various clocks to the system.
-
-Required Properties:
-
-- compatible: Should be one of:
- - "mediatek,mt2712-vencsys", "syscon"
- - "mediatek,mt6779-vencsys", "syscon"
- - "mediatek,mt6797-vencsys", "syscon"
- - "mediatek,mt8173-vencsys", "syscon"
- - "mediatek,mt8183-vencsys", "syscon"
-- #clock-cells: Must be 1
-
-The vencsys controller uses the common clk binding from
-Documentation/devicetree/bindings/clock/clock-bindings.txt
-The available clocks are defined in dt-bindings/clock/mt*-clk.h.
-
-Example:
-
-vencsys: clock-controller@18000000 {
- compatible = "mediatek,mt8173-vencsys", "syscon";
- reg = <0 0x18000000 0 0x1000>;
- #clock-cells = <1>;
-};
diff --git a/Documentation/devicetree/bindings/arm/mrvl/mrvl.yaml b/Documentation/devicetree/bindings/arm/mrvl/mrvl.yaml
index 4c43eaf3632e..f73bb8ec3a1a 100644
--- a/Documentation/devicetree/bindings/arm/mrvl/mrvl.yaml
+++ b/Documentation/devicetree/bindings/arm/mrvl/mrvl.yaml
@@ -35,6 +35,11 @@ properties:
- enum:
- dell,wyse-ariel
- const: marvell,mmp3
+ - description: PXA1908 based boards
+ items:
+ - enum:
+ - samsung,coreprimevelte
+ - const: marvell,pxa1908
additionalProperties: true
diff --git a/Documentation/devicetree/bindings/arm/msm/qcom,idle-state.txt b/Documentation/devicetree/bindings/arm/msm/qcom,idle-state.txt
deleted file mode 100644
index 606b4b1b709d..000000000000
--- a/Documentation/devicetree/bindings/arm/msm/qcom,idle-state.txt
+++ /dev/null
@@ -1,84 +0,0 @@
-QCOM Idle States for cpuidle driver
-
-ARM provides idle-state node to define the cpuidle states, as defined in [1].
-cpuidle-qcom is the cpuidle driver for Qualcomm SoCs and uses these idle
-states. Idle states have different enter/exit latency and residency values.
-The idle states supported by the QCOM SoC are defined as -
-
- * Standby
- * Retention
- * Standalone Power Collapse (Standalone PC or SPC)
- * Power Collapse (PC)
-
-Standby: Standby does a little more in addition to architectural clock gating.
-When the WFI instruction is executed the ARM core would gate its internal
-clocks. In addition to gating the clocks, QCOM cpus use this instruction as a
-trigger to execute the SPM state machine. The SPM state machine waits for the
-interrupt to trigger the core back in to active. This triggers the cache
-hierarchy to enter standby states, when all cpus are idle. An interrupt brings
-the SPM state machine out of its wait, the next step is to ensure that the
-cache hierarchy is also out of standby, and then the cpu is allowed to resume
-execution. This state is defined as a generic ARM WFI state by the ARM cpuidle
-driver and is not defined in the DT. The SPM state machine should be
-configured to execute this state by default and after executing every other
-state below.
-
-Retention: Retention is a low power state where the core is clock gated and
-the memory and the registers associated with the core are retained. The
-voltage may be reduced to the minimum value needed to keep the processor
-registers active. The SPM should be configured to execute the retention
-sequence and would wait for interrupt, before restoring the cpu to execution
-state. Retention may have a slightly higher latency than Standby.
-
-Standalone PC: A cpu can power down and warmboot if there is a sufficient time
-between the time it enters idle and the next known wake up. SPC mode is used
-to indicate a core entering a power down state without consulting any other
-cpu or the system resources. This helps save power only on that core. The SPM
-sequence for this idle state is programmed to power down the supply to the
-core, wait for the interrupt, restore power to the core, and ensure the
-system state including cache hierarchy is ready before allowing core to
-resume. Applying power and resetting the core causes the core to warmboot
-back into Elevation Level (EL) which trampolines the control back to the
-kernel. Entering a power down state for the cpu, needs to be done by trapping
-into a EL. Failing to do so, would result in a crash enforced by the warm boot
-code in the EL for the SoC. On SoCs with write-back L1 cache, the cache has to
-be flushed in s/w, before powering down the core.
-
-Power Collapse: This state is similar to the SPC mode, but distinguishes
-itself in that the cpu acknowledges and permits the SoC to enter deeper sleep
-modes. In a hierarchical power domain SoC, this means L2 and other caches can
-be flushed, system bus, clocks - lowered, and SoC main XO clock gated and
-voltages reduced, provided all cpus enter this state. Since the span of low
-power modes possible at this state is vast, the exit latency and the residency
-of this low power mode would be considered high even though at a cpu level,
-this essentially is cpu power down. The SPM in this state also may handshake
-with the Resource power manager (RPM) processor in the SoC to indicate a
-complete application processor subsystem shut down.
-
-The idle-state for QCOM SoCs are distinguished by the compatible property of
-the idle-states device node.
-
-The devicetree representation of the idle state should be -
-
-Required properties:
-
-- compatible: Must be one of -
- "qcom,idle-state-ret",
- "qcom,idle-state-spc",
- "qcom,idle-state-pc",
- and "arm,idle-state".
-
-Other required and optional properties are specified in [1].
-
-Example:
-
- idle-states {
- CPU_SPC: spc {
- compatible = "qcom,idle-state-spc", "arm,idle-state";
- entry-latency-us = <150>;
- exit-latency-us = <200>;
- min-residency-us = <2000>;
- };
- };
-
-[1]. Documentation/devicetree/bindings/cpu/idle-states.yaml
diff --git a/Documentation/devicetree/bindings/arm/msm/qcom,saw2.txt b/Documentation/devicetree/bindings/arm/msm/qcom,saw2.txt
deleted file mode 100644
index c0e3c3a42bea..000000000000
--- a/Documentation/devicetree/bindings/arm/msm/qcom,saw2.txt
+++ /dev/null
@@ -1,58 +0,0 @@
-SPM AVS Wrapper 2 (SAW2)
-
-The SAW2 is a wrapper around the Subsystem Power Manager (SPM) and the
-Adaptive Voltage Scaling (AVS) hardware. The SPM is a programmable
-power-controller that transitions a piece of hardware (like a processor or
-subsystem) into and out of low power modes via a direct connection to
-the PMIC. It can also be wired up to interact with other processors in the
-system, notifying them when a low power state is entered or exited.
-
-Multiple revisions of the SAW hardware are supported using these Device Nodes.
-SAW2 revisions differ in the register offset and configuration data. Also, the
-same revision of the SAW in different SoCs may have different configuration
-data due the differences in hardware capabilities. Hence the SoC name, the
-version of the SAW hardware in that SoC and the distinction between cpu (big
-or Little) or cache, may be needed to uniquely identify the SAW register
-configuration and initialization data. The compatible string is used to
-indicate this parameter.
-
-PROPERTIES
-
-- compatible:
- Usage: required
- Value type: <string>
- Definition: Must have
- "qcom,saw2"
- A more specific value could be one of:
- "qcom,apq8064-saw2-v1.1-cpu"
- "qcom,msm8226-saw2-v2.1-cpu"
- "qcom,msm8974-saw2-v2.1-cpu"
- "qcom,apq8084-saw2-v2.1-cpu"
-
-- reg:
- Usage: required
- Value type: <prop-encoded-array>
- Definition: the first element specifies the base address and size of
- the register region. An optional second element specifies
- the base address and size of the alias register region.
-
-- regulator:
- Usage: optional
- Value type: boolean
- Definition: Indicates that this SPM device acts as a regulator device
- device for the core (CPU or Cache) the SPM is attached
- to.
-
-Example 1:
-
- power-controller@2099000 {
- compatible = "qcom,saw2";
- reg = <0x02099000 0x1000>, <0x02009000 0x1000>;
- regulator;
- };
-
-Example 2:
- saw0: power-controller@f9089000 {
- compatible = "qcom,apq8084-saw2-v2.1-cpu", "qcom,saw2";
- reg = <0xf9089000 0x1000>, <0xf9009000 0x1000>;
- };
diff --git a/Documentation/devicetree/bindings/arm/msm/ssbi.txt b/Documentation/devicetree/bindings/arm/msm/ssbi.txt
deleted file mode 100644
index 54fd5ced3401..000000000000
--- a/Documentation/devicetree/bindings/arm/msm/ssbi.txt
+++ /dev/null
@@ -1,18 +0,0 @@
-* Qualcomm SSBI
-
-Some Qualcomm MSM devices contain a point-to-point serial bus used to
-communicate with a limited range of devices (mostly power management
-chips).
-
-These require the following properties:
-
-- compatible: "qcom,ssbi"
-
-- qcom,controller-type
- indicates the SSBI bus variant the controller should use to talk
- with the slave device. This should be one of "ssbi", "ssbi2", or
- "pmic-arbiter". The type chosen is determined by the attached
- slave.
-
-The slave device should be the single child node of the ssbi device
-with a compatible field.
diff --git a/Documentation/devicetree/bindings/arm/mstar/mstar,l3bridge.yaml b/Documentation/devicetree/bindings/arm/mstar/mstar,l3bridge.yaml
index 6816bd68f9cf..a8ac4a2d672d 100644
--- a/Documentation/devicetree/bindings/arm/mstar/mstar,l3bridge.yaml
+++ b/Documentation/devicetree/bindings/arm/mstar/mstar,l3bridge.yaml
@@ -2,8 +2,8 @@
# Copyright 2020 thingy.jp.
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/arm/mstar/mstar,l3bridge.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/arm/mstar/mstar,l3bridge.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: MStar/SigmaStar Armv7 SoC l3bridge
diff --git a/Documentation/devicetree/bindings/arm/mstar/mstar,smpctrl.yaml b/Documentation/devicetree/bindings/arm/mstar/mstar,smpctrl.yaml
index 599c65980f5d..5739848000b1 100644
--- a/Documentation/devicetree/bindings/arm/mstar/mstar,smpctrl.yaml
+++ b/Documentation/devicetree/bindings/arm/mstar/mstar,smpctrl.yaml
@@ -2,8 +2,8 @@
# Copyright 2020 thingy.jp.
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/arm/mstar/mstar,smpctrl.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/arm/mstar/mstar,smpctrl.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: MStar/SigmaStar Armv7 SoC SMP control registers
diff --git a/Documentation/devicetree/bindings/arm/npcm/npcm.yaml b/Documentation/devicetree/bindings/arm/npcm/npcm.yaml
deleted file mode 100644
index 6871483947c5..000000000000
--- a/Documentation/devicetree/bindings/arm/npcm/npcm.yaml
+++ /dev/null
@@ -1,36 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
-%YAML 1.2
----
-$id: http://devicetree.org/schemas/arm/npcm/npcm.yaml#
-$schema: http://devicetree.org/meta-schemas/core.yaml#
-
-title: NPCM Platforms
-
-maintainers:
- - Jonathan Neuschäfer <j.neuschaefer@gmx.net>
- - Tomer Maimon <tmaimon77@gmail.com>
-
-properties:
- $nodename:
- const: '/'
- compatible:
- oneOf:
- - description: WPCM450 based boards
- items:
- - enum:
- - supermicro,x9sci-ln4f-bmc # Supermicro X9SCI-LN4F server's BMC
- - const: nuvoton,wpcm450
-
- - description: NPCM750 based boards
- items:
- - enum:
- - nuvoton,npcm750-evb # NPCM750 evaluation board
- - const: nuvoton,npcm750
-
- - description: NPCM845 based boards
- items:
- - enum:
- - nuvoton,npcm845-evb # NPCM845 evaluation board
- - const: nuvoton,npcm845
-
-additionalProperties: true
diff --git a/Documentation/devicetree/bindings/arm/npcm/nuvoton,gcr.yaml b/Documentation/devicetree/bindings/arm/npcm/nuvoton,gcr.yaml
deleted file mode 100644
index 94e72f25b331..000000000000
--- a/Documentation/devicetree/bindings/arm/npcm/nuvoton,gcr.yaml
+++ /dev/null
@@ -1,50 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
-%YAML 1.2
----
-$id: http://devicetree.org/schemas/arm/npcm/nuvoton,gcr.yaml#
-$schema: http://devicetree.org/meta-schemas/core.yaml#
-
-title: Global Control Registers block in Nuvoton SoCs
-
-maintainers:
- - Jonathan Neuschäfer <j.neuschaefer@gmx.net>
- - Tomer Maimon <tmaimon77@gmail.com>
-
-description:
- The Global Control Registers (GCR) are a block of registers in Nuvoton SoCs
- that expose misc functionality such as chip model and version information or
- pinmux settings.
-
-properties:
- compatible:
- items:
- - enum:
- - nuvoton,wpcm450-gcr
- - nuvoton,npcm750-gcr
- - nuvoton,npcm845-gcr
- - const: syscon
- - const: simple-mfd
-
- reg:
- maxItems: 1
-
-required:
- - compatible
- - reg
-
-additionalProperties:
- type: object
-
-examples:
- - |
- gcr: syscon@800000 {
- compatible = "nuvoton,npcm750-gcr", "syscon", "simple-mfd";
- reg = <0x800000 0x1000>;
-
- mux-controller {
- compatible = "mmio-mux";
- #mux-control-cells = <1>;
- mux-reg-masks = <0x38 0x07>;
- idle-states = <2>;
- };
- };
diff --git a/Documentation/devicetree/bindings/arm/nuvoton/nuvoton,ma35d1.yaml b/Documentation/devicetree/bindings/arm/nuvoton/nuvoton,ma35d1.yaml
new file mode 100644
index 000000000000..fb190db61525
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/nuvoton/nuvoton,ma35d1.yaml
@@ -0,0 +1,30 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/nuvoton/nuvoton,ma35d1.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Nuvoton MA35 series SoC based platforms
+
+maintainers:
+ - Jacky Huang <ychuang3@nuvoton.com>
+
+description: |
+ Boards with an ARMv8 based Nuvoton MA35 series SoC shall have
+ the following properties.
+
+properties:
+ $nodename:
+ const: '/'
+ compatible:
+ oneOf:
+
+ - description: MA35D1 based boards
+ items:
+ - enum:
+ - nuvoton,ma35d1-iot
+ - nuvoton,ma35d1-som
+ - const: nuvoton,ma35d1
+
+additionalProperties: true
+...
diff --git a/Documentation/devicetree/bindings/arm/nuvoton/nuvoton,npcm.yaml b/Documentation/devicetree/bindings/arm/nuvoton/nuvoton,npcm.yaml
new file mode 100644
index 000000000000..d386744c8815
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/nuvoton/nuvoton,npcm.yaml
@@ -0,0 +1,36 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/nuvoton/nuvoton,npcm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NPCM Platforms
+
+maintainers:
+ - Jonathan Neuschäfer <j.neuschaefer@gmx.net>
+ - Tomer Maimon <tmaimon77@gmail.com>
+
+properties:
+ $nodename:
+ const: '/'
+ compatible:
+ oneOf:
+ - description: WPCM450 based boards
+ items:
+ - enum:
+ - supermicro,x9sci-ln4f-bmc # Supermicro X9SCI-LN4F server's BMC
+ - const: nuvoton,wpcm450
+
+ - description: NPCM750 based boards
+ items:
+ - enum:
+ - nuvoton,npcm750-evb # NPCM750 evaluation board
+ - const: nuvoton,npcm750
+
+ - description: NPCM845 based boards
+ items:
+ - enum:
+ - nuvoton,npcm845-evb # NPCM845 evaluation board
+ - const: nuvoton,npcm845
+
+additionalProperties: true
diff --git a/Documentation/devicetree/bindings/arm/nxp/lpc32xx.yaml b/Documentation/devicetree/bindings/arm/nxp/lpc32xx.yaml
index f1bd6f50e726..6b7f5e6f99cf 100644
--- a/Documentation/devicetree/bindings/arm/nxp/lpc32xx.yaml
+++ b/Documentation/devicetree/bindings/arm/nxp/lpc32xx.yaml
@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: NXP LPC32xx Platforms
maintainers:
- - Roland Stigge <stigge@antcom.de>
+ - Vladimir Zapolskiy <vz@mleia.com>
properties:
compatible:
diff --git a/Documentation/devicetree/bindings/arm/omap/ctrl.txt b/Documentation/devicetree/bindings/arm/omap/ctrl.txt
index f35b77920786..0ce6665df4a2 100644
--- a/Documentation/devicetree/bindings/arm/omap/ctrl.txt
+++ b/Documentation/devicetree/bindings/arm/omap/ctrl.txt
@@ -8,7 +8,7 @@ control module driver itself.
See [2] for documentation about clock/clockdomain nodes.
-[1] Documentation/devicetree/bindings/pinctrl/pinctrl-single.txt
+[1] Documentation/devicetree/bindings/pinctrl/pinctrl-single.yaml
[2] Documentation/devicetree/bindings/clock/ti/*
Required properties:
diff --git a/Documentation/devicetree/bindings/arm/omap/omap.txt b/Documentation/devicetree/bindings/arm/omap/omap.txt
index fa8b31660cad..c863ec07cbbb 100644
--- a/Documentation/devicetree/bindings/arm/omap/omap.txt
+++ b/Documentation/devicetree/bindings/arm/omap/omap.txt
@@ -41,14 +41,6 @@ SoC Type (optional):
SoC Families:
-- OMAP2 generic - defaults to OMAP2420
- compatible = "ti,omap2"
-- OMAP3 generic
- compatible = "ti,omap3"
-- OMAP4 generic - defaults to OMAP4430
- compatible = "ti,omap4"
-- OMAP5 generic - defaults to OMAP5430
- compatible = "ti,omap5"
- DRA7 generic - defaults to DRA742
compatible = "ti,dra7"
- AM33x generic
@@ -58,32 +50,6 @@ SoC Families:
SoCs:
-- OMAP2420
- compatible = "ti,omap2420", "ti,omap2"
-- OMAP2430
- compatible = "ti,omap2430", "ti,omap2"
-
-- OMAP3430
- compatible = "ti,omap3430", "ti,omap3"
- legacy: "ti,omap34xx" - please do not use any more
-- AM3517
- compatible = "ti,am3517", "ti,omap3"
-- OMAP3630
- compatible = "ti,omap3630", "ti,omap3"
- legacy: "ti,omap36xx" - please do not use any more
-- AM335x
- compatible = "ti,am33xx"
-
-- OMAP4430
- compatible = "ti,omap4430", "ti,omap4"
-- OMAP4460
- compatible = "ti,omap4460", "ti,omap4"
-
-- OMAP5430
- compatible = "ti,omap5430", "ti,omap5"
-- OMAP5432
- compatible = "ti,omap5432", "ti,omap5"
-
- DRA762
compatible = "ti,dra762", "ti,dra7"
@@ -116,65 +82,6 @@ SoCs:
Boards (incomplete list of examples):
-- OMAP3 BeagleBoard : Low cost community board
- compatible = "ti,omap3-beagle", "ti,omap3430", "ti,omap3"
-
-- OMAP3 BeagleBoard A to B4 : Early BeagleBoard revisions A to B4 with a timer quirk
- compatible = "ti,omap3-beagle-ab4", "ti,omap3-beagle", "ti,omap3430", "ti,omap3"
-
-- OMAP3 Tobi with Overo : Commercial expansion board with daughter board
- compatible = "gumstix,omap3-overo-tobi", "gumstix,omap3-overo", "ti,omap3430", "ti,omap3"
-
-- OMAP4 SDP : Software Development Board
- compatible = "ti,omap4-sdp", "ti,omap4430", "ti,omap4"
-
-- OMAP4 PandaBoard : Low cost community board
- compatible = "ti,omap4-panda", "ti,omap4430", "ti,omap4"
-
-- OMAP4 DuoVero with Parlor : Commercial expansion board with daughter board
- compatible = "gumstix,omap4-duovero-parlor", "gumstix,omap4-duovero", "ti,omap4430", "ti,omap4";
-
-- OMAP4 VAR-STK-OM44 : Commercial dev kit with VAR-OM44CustomBoard and VAR-SOM-OM44 w/WLAN
- compatible = "variscite,var-stk-om44", "variscite,var-som-om44", "ti,omap4460", "ti,omap4";
-
-- OMAP4 VAR-DVK-OM44 : Commercial dev kit with VAR-OM44CustomBoard, VAR-SOM-OM44 w/WLAN and LCD touchscreen
- compatible = "variscite,var-dvk-om44", "variscite,var-som-om44", "ti,omap4460", "ti,omap4";
-
-- OMAP3 EVM : Software Development Board for OMAP35x, AM/DM37x
- compatible = "ti,omap3-evm", "ti,omap3630", "ti,omap3"
-
-- AM335X EVM : Software Development Board for AM335x
- compatible = "ti,am335x-evm", "ti,am33xx"
-
-- AM335X Bone : Low cost community board
- compatible = "ti,am335x-bone", "ti,am33xx"
-
-- AM3359 ICEv2 : Low cost Industrial Communication Engine EVM.
- compatible = "ti,am3359-icev2", "ti,am33xx"
-
-- AM335X OrionLXm : Substation Automation Platform
- compatible = "novatech,am335x-lxm", "ti,am33xx"
-
-- AM335X phyBOARD-WEGA: Single Board Computer dev kit
- compatible = "phytec,am335x-wega", "phytec,am335x-phycore-som", "ti,am33xx"
-
-- AM335X CM-T335 : System On Module, built around the Sitara AM3352/4
- compatible = "compulab,cm-t335", "ti,am33xx"
-
-- AM335X SBC-T335 : single board computer, built around the Sitara AM3352/4
- compatible = "compulab,sbc-t335", "compulab,cm-t335", "ti,am33xx"
-
-- AM335X phyCORE-AM335x: Development kit
- compatible = "phytec,am335x-pcm-953", "phytec,am335x-phycore-som", "ti,am33xx"
-
-- AM335x phyBOARD-REGOR: Single Board Computer
- compatible = "phytec,am335x-regor", "phytec,am335x-phycore-som", "ti,am33xx"
-
-- AM335X UC-8100-ME-T: Communication-centric industrial computing platform
- compatible = "moxa,uc-8100-me-t", "ti,am33xx";
-
-- OMAP5 EVM : Evaluation Module
- compatible = "ti,omap5-evm", "ti,omap5"
- AM437x CM-T43
compatible = "compulab,am437x-cm-t43", "ti,am4372", "ti,am43"
@@ -217,9 +124,3 @@ Boards (incomplete list of examples):
- DRA718 EVM: Software Development Board for DRA718
compatible = "ti,dra718-evm", "ti,dra718", "ti,dra722", "ti,dra72", "ti,dra7"
-
-- DM3730 Logic PD Torpedo + Wireless: Commercial System on Module with WiFi and Bluetooth
- compatible = "logicpd,dm3730-torpedo-devkit", "ti,omap3630", "ti,omap3"
-
-- DM3730 Logic PD SOM-LV: Commercial System on Module with WiFi and Bluetooth
- compatible = "logicpd,dm3730-som-lv-devkit", "ti,omap3630", "ti,omap3"
diff --git a/Documentation/devicetree/bindings/arm/pmu.yaml b/Documentation/devicetree/bindings/arm/pmu.yaml
index e14358bf0b9c..f47baaefcdac 100644
--- a/Documentation/devicetree/bindings/arm/pmu.yaml
+++ b/Documentation/devicetree/bindings/arm/pmu.yaml
@@ -28,6 +28,10 @@ properties:
- arm,arm1136-pmu
- arm,arm1176-pmu
- arm,arm11mpcore-pmu
+ - arm,c1-nano-pmu
+ - arm,c1-premium-pmu
+ - arm,c1-pro-pmu
+ - arm,c1-ultra-pmu
- arm,cortex-a5-pmu
- arm,cortex-a7-pmu
- arm,cortex-a8-pmu
@@ -48,14 +52,29 @@ properties:
- arm,cortex-a76-pmu
- arm,cortex-a77-pmu
- arm,cortex-a78-pmu
+ - arm,cortex-a320-pmu
- arm,cortex-a510-pmu
+ - arm,cortex-a520-pmu
+ - arm,cortex-a520ae-pmu
- arm,cortex-a710-pmu
+ - arm,cortex-a715-pmu
+ - arm,cortex-a720-pmu
+ - arm,cortex-a720ae-pmu
+ - arm,cortex-a725-pmu
- arm,cortex-x1-pmu
- arm,cortex-x2-pmu
+ - arm,cortex-x3-pmu
+ - arm,cortex-x4-pmu
+ - arm,cortex-x925-pmu
- arm,neoverse-e1-pmu
- arm,neoverse-n1-pmu
- arm,neoverse-n2-pmu
+ - arm,neoverse-n3-pmu
- arm,neoverse-v1-pmu
+ - arm,neoverse-v2-pmu
+ - arm,neoverse-v3-pmu
+ - arm,neoverse-v3ae-pmu
+ - arm,rainier-pmu
- brcm,vulcan-pmu
- cavium,thunder-pmu
- nvidia,denver-pmu
@@ -63,6 +82,7 @@ properties:
- qcom,krait-pmu
- qcom,scorpion-pmu
- qcom,scorpion-mp-pmu
+ - samsung,mongoose-pmu
interrupts:
# Don't know how many CPUs, so no constraints to specify
diff --git a/Documentation/devicetree/bindings/arm/psci.yaml b/Documentation/devicetree/bindings/arm/psci.yaml
index 3a2c908ff282..6e2e0c551841 100644
--- a/Documentation/devicetree/bindings/arm/psci.yaml
+++ b/Documentation/devicetree/bindings/arm/psci.yaml
@@ -100,7 +100,8 @@ properties:
patternProperties:
"^power-domain-":
- $ref: "../power/power-domain.yaml#"
+ $ref: /schemas/power/power-domain.yaml#
+ unevaluatedProperties: false
type: object
description: |
@@ -162,7 +163,6 @@ examples:
method = "smc";
};
-
- |+
// Case 3: PSCI v0.2 and PSCI v0.1.
@@ -190,27 +190,27 @@ examples:
#size-cells = <0>;
#address-cells = <1>;
- CPU0: cpu@0 {
+ cpu@0 {
device_type = "cpu";
compatible = "arm,cortex-a53";
reg = <0x0>;
enable-method = "psci";
- power-domains = <&CPU_PD0>;
+ power-domains = <&cpu_pd0>;
power-domain-names = "psci";
};
- CPU1: cpu@1 {
+ cpu@1 {
device_type = "cpu";
compatible = "arm,cortex-a53";
reg = <0x100>;
enable-method = "psci";
- power-domains = <&CPU_PD1>;
+ power-domains = <&cpu_pd1>;
power-domain-names = "psci";
};
idle-states {
- CPU_PWRDN: cpu-power-down {
+ cpu_pwrdn: cpu-power-down {
compatible = "arm,idle-state";
arm,psci-suspend-param = <0x0000001>;
entry-latency-us = <10>;
@@ -221,7 +221,7 @@ examples:
domain-idle-states {
- CLUSTER_RET: cluster-retention {
+ cluster_ret: cluster-retention {
compatible = "domain-idle-state";
arm,psci-suspend-param = <0x1000011>;
entry-latency-us = <500>;
@@ -229,7 +229,7 @@ examples:
min-residency-us = <2000>;
};
- CLUSTER_PWRDN: cluster-power-down {
+ cluster_pwrdn: cluster-power-down {
compatible = "domain-idle-state";
arm,psci-suspend-param = <0x1000031>;
entry-latency-us = <2000>;
@@ -243,21 +243,21 @@ examples:
compatible = "arm,psci-1.0";
method = "smc";
- CPU_PD0: power-domain-cpu0 {
+ cpu_pd0: power-domain-cpu0 {
#power-domain-cells = <0>;
- domain-idle-states = <&CPU_PWRDN>;
- power-domains = <&CLUSTER_PD>;
+ domain-idle-states = <&cpu_pwrdn>;
+ power-domains = <&cluster_pd>;
};
- CPU_PD1: power-domain-cpu1 {
+ cpu_pd1: power-domain-cpu1 {
#power-domain-cells = <0>;
- domain-idle-states = <&CPU_PWRDN>;
- power-domains = <&CLUSTER_PD>;
+ domain-idle-states = <&cpu_pwrdn>;
+ power-domains = <&cluster_pd>;
};
- CLUSTER_PD: power-domain-cluster {
+ cluster_pd: power-domain-cluster {
#power-domain-cells = <0>;
- domain-idle-states = <&CLUSTER_RET>, <&CLUSTER_PWRDN>;
+ domain-idle-states = <&cluster_ret>, <&cluster_pwrdn>;
};
};
...
diff --git a/Documentation/devicetree/bindings/arm/qcom,coresight-ctcu.yaml b/Documentation/devicetree/bindings/arm/qcom,coresight-ctcu.yaml
new file mode 100644
index 000000000000..c969c16c21ef
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/qcom,coresight-ctcu.yaml
@@ -0,0 +1,88 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/qcom,coresight-ctcu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: CoreSight TMC Control Unit
+
+maintainers:
+ - Yuanfang Zhang <quic_yuanfang@quicinc.com>
+ - Mao Jinlong <quic_jinlmao@quicinc.com>
+ - Jie Gan <quic_jiegan@quicinc.com>
+
+description: |
+ The Trace Memory Controller(TMC) is used for Embedded Trace Buffer(ETB),
+ Embedded Trace FIFO(ETF) and Embedded Trace Router(ETR) configurations.
+ The configuration mode (ETB, ETF, ETR) is discovered at boot time when
+ the device is probed.
+
+ The Coresight TMC Control unit controls various Coresight behaviors.
+ It works as a helper device when connected to TMC ETR device.
+ It is responsible for controlling the data filter function based on
+ the source device's Trace ID for TMC ETR device. The trace data with
+ that Trace id can get into ETR's buffer while other trace data gets
+ ignored.
+
+properties:
+ compatible:
+ enum:
+ - qcom,sa8775p-ctcu
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ items:
+ - const: apb
+
+ label:
+ description:
+ Description of a coresight device.
+
+ in-ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+
+ patternProperties:
+ '^port(@[0-1])?$':
+ description: Input connections from CoreSight Trace bus
+ $ref: /schemas/graph.yaml#/properties/port
+
+required:
+ - compatible
+ - reg
+ - in-ports
+
+additionalProperties: false
+
+examples:
+ - |
+ ctcu@1001000 {
+ compatible = "qcom,sa8775p-ctcu";
+ reg = <0x1001000 0x1000>;
+
+ clocks = <&aoss_qmp>;
+ clock-names = "apb";
+
+ in-ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ ctcu_in_port0: endpoint {
+ remote-endpoint = <&etr0_out_port>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ ctcu_in_port1: endpoint {
+ remote-endpoint = <&etr1_out_port>;
+ };
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/arm/qcom,coresight-remote-etm.yaml b/Documentation/devicetree/bindings/arm/qcom,coresight-remote-etm.yaml
new file mode 100644
index 000000000000..ffe613efeabe
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/qcom,coresight-remote-etm.yaml
@@ -0,0 +1,55 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/qcom,coresight-remote-etm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Coresight Remote ETM(Embedded Trace Macrocell)
+
+maintainers:
+ - Jinlong Mao <quic_jinlmao@quicinc.com>
+ - Tao Zhang <quic_taozha@quicinc.com>
+
+description:
+ Support for ETM trace collection on remote processor using coresight
+ framework. Enabling this will allow turning on ETM tracing on remote
+ processor like modem processor via sysfs and collecting the trace
+ via coresight TMC sinks.
+
+properties:
+ compatible:
+ const: qcom,coresight-remote-etm
+
+ label:
+ description:
+ Description of a coresight device.
+
+ out-ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+ additionalProperties: false
+
+ properties:
+ port:
+ description: Output connection to the CoreSight Trace bus.
+ $ref: /schemas/graph.yaml#/properties/port
+
+required:
+ - compatible
+ - out-ports
+
+additionalProperties: false
+
+examples:
+ - |
+ etm {
+ compatible = "qcom,coresight-remote-etm";
+
+ out-ports {
+ port {
+ modem_etm0_out_funnel_modem: endpoint {
+ remote-endpoint = <&funnel_modem_in_modem_etm0>;
+ };
+ };
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/arm/qcom,coresight-tnoc.yaml b/Documentation/devicetree/bindings/arm/qcom,coresight-tnoc.yaml
new file mode 100644
index 000000000000..9d1c93a9ade3
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/qcom,coresight-tnoc.yaml
@@ -0,0 +1,113 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/qcom,coresight-tnoc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Trace Network On Chip - TNOC
+
+maintainers:
+ - Yuanfang Zhang <quic_yuanfang@quicinc.com>
+
+description: >
+ The Trace Network On Chip (TNOC) is an integration hierarchy hardware
+ component that integrates the functionalities of TPDA and funnels.
+
+ It sits in the different subsystem of SOC and aggregates the trace and
+ transports it to Aggregation TNOC or to coresight trace sink eventually.
+ TNOC embeds bridges for all the interfaces APB, ATB, TPDA and NTS (Narrow
+ Time Stamp).
+
+ TNOC can take inputs from different trace sources i.e. ATB, TPDM.
+
+ Note this binding is specifically intended for Aggregator TNOC instances.
+
+# Need a custom select here or 'arm,primecell' will match on lots of nodes
+select:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,coresight-tnoc
+ required:
+ - compatible
+
+properties:
+ $nodename:
+ pattern: "^tn(@[0-9a-f]+)$"
+
+ compatible:
+ items:
+ - const: qcom,coresight-tnoc
+ - const: arm,primecell
+
+ reg:
+ maxItems: 1
+
+ clock-names:
+ items:
+ - const: apb_pclk
+
+ clocks:
+ items:
+ - description: APB register access clock
+
+ in-ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+
+ patternProperties:
+ '^port(@[0-9a-f]{1,2})?$':
+ description: Input connections from CoreSight Trace Bus
+ $ref: /schemas/graph.yaml#/properties/port
+
+ out-ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+ additionalProperties: false
+
+ properties:
+ port:
+ description:
+ Output connection to CoreSight Trace Bus
+ $ref: /schemas/graph.yaml#/properties/port
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - in-ports
+ - out-ports
+
+additionalProperties: false
+
+examples:
+ - |
+ tn@109ab000 {
+ compatible = "qcom,coresight-tnoc", "arm,primecell";
+ reg = <0x109ab000 0x4200>;
+
+ clocks = <&aoss_qmp>;
+ clock-names = "apb_pclk";
+
+ in-ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ tn_ag_in_tpdm_gcc: endpoint {
+ remote-endpoint = <&tpdm_gcc_out_tn_ag>;
+ };
+ };
+ };
+
+ out-ports {
+ port {
+ tn_ag_out_funnel_in1: endpoint {
+ remote-endpoint = <&funnel_in1_in_tn_ag>;
+ };
+ };
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/arm/qcom,coresight-tpda.yaml b/Documentation/devicetree/bindings/arm/qcom,coresight-tpda.yaml
index 2ec9b5b24d73..a48c9ac3eaa9 100644
--- a/Documentation/devicetree/bindings/arm/qcom,coresight-tpda.yaml
+++ b/Documentation/devicetree/bindings/arm/qcom,coresight-tpda.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
# Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved.
%YAML 1.2
---
@@ -55,8 +55,7 @@ properties:
- const: arm,primecell
reg:
- minItems: 1
- maxItems: 2
+ maxItems: 1
clocks:
maxItems: 1
@@ -65,14 +64,16 @@ properties:
items:
- const: apb_pclk
+ label:
+ description:
+ Description of a coresight device.
+
in-ports:
- type: object
description: |
Input connections from TPDM to TPDA
$ref: /schemas/graph.yaml#/properties/ports
out-ports:
- type: object
description: |
Output connections from the TPDA to legacy CoreSight trace bus.
$ref: /schemas/graph.yaml#/properties/ports
@@ -97,33 +98,31 @@ examples:
# minimum tpda definition.
- |
tpda@6004000 {
- compatible = "qcom,coresight-tpda", "arm,primecell";
- reg = <0x6004000 0x1000>;
+ compatible = "qcom,coresight-tpda", "arm,primecell";
+ reg = <0x6004000 0x1000>;
- clocks = <&aoss_qmp>;
- clock-names = "apb_pclk";
+ clocks = <&aoss_qmp>;
+ clock-names = "apb_pclk";
- in-ports {
- #address-cells = <1>;
- #size-cells = <0>;
+ in-ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
port@0 {
reg = <0>;
tpda_qdss_0_in_tpdm_dcc: endpoint {
- remote-endpoint =
- <&tpdm_dcc_out_tpda_qdss_0>;
- };
+ remote-endpoint = <&tpdm_dcc_out_tpda_qdss_0>;
+ };
};
};
- out-ports {
- port {
- tpda_qdss_out_funnel_in0: endpoint {
- remote-endpoint =
- <&funnel_in0_in_tpda_qdss>;
- };
+ out-ports {
+ port {
+ tpda_qdss_out_funnel_in0: endpoint {
+ remote-endpoint = <&funnel_in0_in_tpda_qdss>;
};
- };
+ };
+ };
};
...
diff --git a/Documentation/devicetree/bindings/arm/qcom,coresight-tpdm.yaml b/Documentation/devicetree/bindings/arm/qcom,coresight-tpdm.yaml
index 5c08342664ea..c349306f0d52 100644
--- a/Documentation/devicetree/bindings/arm/qcom,coresight-tpdm.yaml
+++ b/Documentation/devicetree/bindings/arm/qcom,coresight-tpdm.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
# Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved.
%YAML 1.2
---
@@ -36,13 +36,52 @@ properties:
$nodename:
pattern: "^tpdm(@[0-9a-f]+)$"
compatible:
- items:
- - const: qcom,coresight-tpdm
- - const: arm,primecell
+ oneOf:
+ - items:
+ - const: qcom,coresight-static-tpdm
+ - items:
+ - const: qcom,coresight-tpdm
+ - const: arm,primecell
reg:
- minItems: 1
- maxItems: 2
+ maxItems: 1
+
+ qcom,dsb-element-bits:
+ description:
+ Specifies the DSB(Discrete Single Bit) element size supported by
+ the monitor. The associated aggregator will read this size before it
+ is enabled. DSB element size currently only supports 32-bit and 64-bit.
+ enum: [32, 64]
+
+ qcom,cmb-element-bits:
+ description:
+ Specifies the CMB(Continuous Multi-Bit) element size supported by
+ the monitor. The associated aggregator will read this size before it
+ is enabled. CMB element size currently only supports 8-bit, 32-bit
+ and 64-bit.
+ enum: [8, 32, 64]
+
+ qcom,dsb-msrs-num:
+ description:
+ Specifies the number of DSB(Discrete Single Bit) MSR(mux select register)
+ registers supported by the monitor. If this property is not configured
+ or set to 0, it means this DSB TPDM doesn't support MSR.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 32
+
+ qcom,cmb-msrs-num:
+ description:
+ Specifies the number of CMB MSR(mux select register) registers supported
+ by the monitor. If this property is not configured or set to 0, it means
+ this TPDM doesn't support CMB MSR.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 32
+
+ label:
+ description:
+ Description of a coresight device.
clocks:
maxItems: 1
@@ -77,6 +116,9 @@ examples:
compatible = "qcom,coresight-tpdm", "arm,primecell";
reg = <0x0684c000 0x1000>;
+ qcom,dsb-element-bits = <32>;
+ qcom,dsb-msrs-num = <16>;
+
clocks = <&aoss_qmp>;
clock-names = "apb_pclk";
@@ -90,4 +132,36 @@ examples:
};
};
+ tpdm@6c29000 {
+ compatible = "qcom,coresight-tpdm", "arm,primecell";
+ reg = <0x06c29000 0x1000>;
+
+ qcom,cmb-element-bits = <64>;
+ qcom,cmb-msrs-num = <32>;
+
+ clocks = <&aoss_qmp>;
+ clock-names = "apb_pclk";
+
+ out-ports {
+ port {
+ tpdm_ipcc_out_funnel_center: endpoint {
+ remote-endpoint = <&funnel_center_in_tpdm_ipcc>;
+ };
+ };
+ };
+ };
+
+ turing-llm-tpdm {
+ compatible = "qcom,coresight-static-tpdm";
+
+ qcom,cmb-element-bits = <32>;
+
+ out-ports {
+ port {
+ turing_llm_tpdm_out: endpoint {
+ remote-endpoint = <&turing0_funnel_in1>;
+ };
+ };
+ };
+ };
...
diff --git a/Documentation/devicetree/bindings/arm/qcom-soc.yaml b/Documentation/devicetree/bindings/arm/qcom-soc.yaml
index e333ec4a9c5f..27261039d56f 100644
--- a/Documentation/devicetree/bindings/arm/qcom-soc.yaml
+++ b/Documentation/devicetree/bindings/arm/qcom-soc.yaml
@@ -23,7 +23,9 @@ description: |
select:
properties:
compatible:
- pattern: "^qcom,.*(apq|ipq|mdm|msm|qcm|qcs|sa|sc|sdm|sdx|sm)[0-9]+.*$"
+ oneOf:
+ - pattern: "^qcom,.*(apq|ipq|mdm|msm|qcm|qcs|q[dr]u|sa|sar|sc|sd[amx]|sm|x1[ep])[0-9]+.*$"
+ - pattern: "^qcom,.*(glymur|milos).*$"
required:
- compatible
@@ -31,17 +33,19 @@ properties:
compatible:
oneOf:
# Preferred naming style for compatibles of SoC components:
- - pattern: "^qcom,(apq|ipq|mdm|msm|qcm|qcs|sa|sc|sdm|sdx|sm)[0-9]+-.*$"
+ - pattern: "^qcom,(apq|ipq|mdm|msm|qcm|qcs|q[dr]u|sa|sc|sd[amx]|sm|x1[ep])[0-9]+(pro)?-.*$"
+ - pattern: "^qcom,sar[0-9]+[a-z]?-.*$"
- pattern: "^qcom,(sa|sc)8[0-9]+[a-z][a-z]?-.*$"
+ - pattern: "^qcom,(glymur|milos)-.*$"
# Legacy namings - variations of existing patterns/compatibles are OK,
# but do not add completely new entries to these:
- - pattern: "^qcom,[ak]pss-wdt-(apq|ipq|mdm|msm|qcm|qcs|sa|sc|sdm|sdx|sm)[0-9]+.*$"
- - pattern: "^qcom,gcc-(apq|ipq|mdm|msm|qcm|qcs|sa|sc|sdm|sdx|sm)[0-9]+.*$"
- - pattern: "^qcom,mmcc-(apq|ipq|mdm|msm|qcm|qcs|sa|sc|sdm|sdx|sm)[0-9]+.*$"
- - pattern: "^qcom,pcie-(apq|ipq|mdm|msm|qcm|qcs|sa|sc|sdm|sdx|sm)[0-9]+.*$"
- - pattern: "^qcom,rpm-(apq|ipq|mdm|msm|qcm|qcs|sa|sc|sdm|sdx|sm)[0-9]+.*$"
- - pattern: "^qcom,scm-(apq|ipq|mdm|msm|qcm|qcs|sa|sc|sdm|sdx|sm)[0-9]+.*$"
+ - pattern: "^qcom,[ak]pss-wdt-(apq|ipq|mdm|msm|qcm|qcs|q[dr]u|sa|sc|sd[amx]|sm)[0-9]+.*$"
+ - pattern: "^qcom,gcc-(apq|ipq|mdm|msm|qcm|qcs|q[dr]u|sa|sc|sd[amx]|sm)[0-9]+.*$"
+ - pattern: "^qcom,mmcc-(apq|ipq|mdm|msm|qcm|qcs|q[dr]u|sa|sc|sd[amx]|sm)[0-9]+.*$"
+ - pattern: "^qcom,pcie-(apq|ipq|mdm|msm|qcm|qcs|q[dr]u|sa|sc|sd[amx]|sm|x1[ep])[0-9]+.*$"
+ - pattern: "^qcom,rpm-(apq|ipq|mdm|msm|qcm|qcs|q[dr]u|sa|sc|sd[amx]|sm)[0-9]+.*$"
+ - pattern: "^qcom,scm-(apq|ipq|mdm|msm|qcm|qcs|q[dr]u|sa|sc|sd[amx]|sm|x1[ep])[0-9]+.*$"
- enum:
- qcom,dsi-ctrl-6g-qcm2290
- qcom,gpucc-sdm630
diff --git a/Documentation/devicetree/bindings/arm/qcom.yaml b/Documentation/devicetree/bindings/arm/qcom.yaml
index d9dd25695c3d..d84bd3bca201 100644
--- a/Documentation/devicetree/bindings/arm/qcom.yaml
+++ b/Documentation/devicetree/bindings/arm/qcom.yaml
@@ -10,122 +10,10 @@ maintainers:
- Bjorn Andersson <bjorn.andersson@linaro.org>
description: |
- Some qcom based bootloaders identify the dtb blob based on a set of
- device properties like SoC and platform and revisions of those components.
- To support this scheme, we encode this information into the board compatible
- string.
-
- Each board must specify a top-level board compatible string with the following
- format:
-
- compatible = "qcom,<SoC>[-<soc_version>][-<foundry_id>]-<board>[/<subtype>][-<board_version>]"
-
- The 'SoC' and 'board' elements are required. All other elements are optional.
-
- The 'SoC' element must be one of the following strings:
-
- apq8016
- apq8026
- apq8074
- apq8084
- apq8096
- ipq4018
- ipq5332
- ipq6018
- ipq8074
- ipq9574
- mdm9615
- msm8226
- msm8916
- msm8939
- msm8953
- msm8956
- msm8974
- msm8976
- msm8992
- msm8994
- msm8996
- msm8998
- qcs404
- qcm2290
- qdu1000
- qrb2210
- qrb4210
- qru1000
- sa8155p
- sa8540p
- sa8775p
- sc7180
- sc7280
- sc8180x
- sc8280xp
- sda660
- sdm450
- sdm630
- sdm632
- sdm636
- sdm660
- sdm670
- sdm845
- sdx55
- sdx65
- sm4250
- sm6115
- sm6115p
- sm6125
- sm6350
- sm6375
- sm7225
- sm8150
- sm8250
- sm8350
- sm8450
- sm8550
-
- The 'board' element must be one of the following strings:
-
- adp
- ap-al02-c7
- ap-mi01.2
- ap-mi01.6
- cdp
- cp01-c1
- dragonboard
- hk01
- hk10-c1
- hk10-c2
- idp
- liquid
- mtp
- qrd
- rb2
- ride
- sbc
- x100
-
- The 'soc_version' and 'board_version' elements take the form of v<Major>.<Minor>
- where the minor number may be omitted when it's zero, i.e. v1.0 is the same
- as v1. If all versions of the 'board_version' elements match, then a
- wildcard '*' should be used, e.g. 'v*'.
-
- The 'foundry_id' and 'subtype' elements are one or more digits from 0 to 9.
-
- Examples:
-
- "qcom,msm8916-v1-cdp-pm8916-v2.1"
-
- A CDP board with an msm8916 SoC, version 1 paired with a pm8916 PMIC of version
- 2.1.
-
- "qcom,apq8074-v2.0-2-dragonboard/1-v0.1"
-
- A dragonboard board v0.1 of subtype 1 with an apq8074 SoC version 2, made in
- foundry 2.
-
There are many devices in the list below that run the standard ChromeOS
bootloader setup and use the open source depthcharge bootloader to boot the
- OS. These devices do not use the scheme described above. For details, see:
- https://docs.kernel.org/arm/google/chromebook-boot-flow.html
+ OS. These devices use the bootflow explained at
+ https://docs.kernel.org/arch/arm/google/chromebook-boot-flow.html
properties:
$nodename:
@@ -135,6 +23,7 @@ properties:
- items:
- enum:
- qcom,apq8016-sbc
+ - schneider,apq8016-hmibsc
- const: qcom,apq8016
- items:
@@ -143,6 +32,7 @@ properties:
- huawei,sturgeon
- lg,lenok
- samsung,matisse-wifi
+ - samsung,milletwifi
- const: qcom,apq8026
- items:
@@ -173,13 +63,39 @@ properties:
- items:
- enum:
+ - microsoft,dempsey
+ - microsoft,makepeace
+ - microsoft,moneypenny
+ - motorola,falcon
+ - samsung,ms013g
- samsung,s3ve3g
- const: qcom,msm8226
- items:
- enum:
+ - htc,memul
+ - microsoft,superman-lte
+ - microsoft,tesla
+ - motorola,peregrine
+ - samsung,matisselte
+ - const: qcom,msm8926
+ - const: qcom,msm8226
+
+ - items:
+ - enum:
+ - wingtech,wt82918hd
+ - const: qcom,msm8929
+
+ - items:
+ - enum:
+ - asus,z00t
+ - huawei,kiwi
+ - longcheer,l9100
+ - samsung,a7
- sony,kanuti-tulip
- square,apq8039-t2
+ - wingtech,wt82918
+ - wingtech,wt82918hdhw39
- const: qcom,msm8939
- items:
@@ -191,28 +107,47 @@ properties:
- items:
- enum:
- qcom,msm8960-cdp
+ - samsung,expressatt
+ - const: qcom,msm8960
+
+ - items:
+ - enum:
+ - sony,huashan
+ - const: qcom,msm8960t
- const: qcom,msm8960
- items:
- enum:
- lge,hammerhead
+ - samsung,hlte
- sony,xperia-amami
- sony,xperia-honami
+ - sony,xperia-togari
- const: qcom,msm8974
- items:
- enum:
- fairphone,fp2
+ - htc,m8
- oneplus,bacon
- samsung,klte
+ - sony,xperia-aries
- sony,xperia-castor
+ - sony,xperia-leo
- const: qcom,msm8974pro
- const: qcom,msm8974
- items:
- - const: qcom,msm8916-mtp
- - const: qcom,msm8916-mtp/1
- - const: qcom,msm8916
+ - enum:
+ - samsung,kltechn
+ - const: samsung,klte
+ - const: qcom,msm8974pro
+ - const: qcom,msm8974
+
+ - items:
+ - enum:
+ - longcheer,l9360
+ - const: qcom,msm8976
- items:
- enum:
@@ -221,30 +156,50 @@ properties:
- asus,z00l
- gplus,fl8005a
- huawei,g7
+ - lg,c50
+ - lg,m216
- longcheer,l8910
+ - longcheer,l8150
+ - motorola,harpia
+ - motorola,osprey
+ - motorola,surnia
+ - qcom,msm8916-mtp
- samsung,a3u-eur
- samsung,a5u-eur
- samsung,e5
- samsung,e7
+ - samsung,fortuna3g
+ - samsung,gprimeltecan
- samsung,grandmax
+ - samsung,grandprimelte
- samsung,gt510
- samsung,gt58
+ - samsung,j3ltetw
- samsung,j5
- samsung,j5x
+ - samsung,rossa
- samsung,serranove
- thwc,uf896
- thwc,ufi001c
+ - wingtech,wt86518
+ - wingtech,wt86528
- wingtech,wt88047
- yiming,uz801-v3
- const: qcom,msm8916
- items:
- - const: longcheer,l8150
- - const: qcom,msm8916-v1-qrd/9-v1
- - const: qcom,msm8916
+ - enum:
+ - xiaomi,riva
+ - const: qcom,msm8917
- items:
- enum:
+ - xiaomi,land
+ - const: qcom,msm8937
+
+ - items:
+ - enum:
+ - flipkart,rimob
- motorola,potter
- xiaomi,daisy
- xiaomi,mido
@@ -255,6 +210,7 @@ properties:
- items:
- enum:
- lg,bullhead
+ - lg,h815
- microsoft,talkman
- xiaomi,libra
- const: qcom,msm8992
@@ -332,12 +288,25 @@ properties:
- items:
- enum:
+ - qcom,ipq5018-rdp432-c2
+ - tplink,archer-ax55-v1
+ - const: qcom,ipq5018
+
+ - items:
+ - enum:
- qcom,ipq5332-ap-mi01.2
+ - qcom,ipq5332-ap-mi01.3
- qcom,ipq5332-ap-mi01.6
+ - qcom,ipq5332-ap-mi01.9
- const: qcom,ipq5332
- items:
- enum:
+ - qcom,ipq5424-rdp466
+ - const: qcom,ipq5424
+
+ - items:
+ - enum:
- mikrotik,rb3011
- qcom,ipq8064-ap148
- const: qcom,ipq8064
@@ -351,7 +320,11 @@ properties:
- items:
- enum:
+ - qcom,ipq9574-ap-al02-c2
+ - qcom,ipq9574-ap-al02-c6
- qcom,ipq9574-ap-al02-c7
+ - qcom,ipq9574-ap-al02-c8
+ - qcom,ipq9574-ap-al02-c9
- const: qcom,ipq9574
- description: Sierra Wireless MangOH Green with WP8548 Module
@@ -367,6 +340,16 @@ properties:
- const: qcom,qrb2210
- const: qcom,qcm2290
+ - items:
+ - enum:
+ - fairphone,fp5
+ - particle,tachyon
+ - qcom,qcm6490-idp
+ - qcom,qcs6490-rb3gen2
+ - radxa,dragon-q6a
+ - shift,otter
+ - const: qcom,qcm6490
+
- description: Qualcomm Technologies, Inc. Distributed Unit 1000 platform
items:
- enum:
@@ -380,9 +363,15 @@ properties:
- qcom,qru1000-idp
- const: qcom,qru1000
- - description: Qualcomm Technologies, Inc. SC7180 IDP
+ - description: Qualcomm AR2 Gen1 platform
items:
- enum:
+ - qcom,qar2130p
+ - const: qcom,sar2130p
+
+ - items:
+ - enum:
+ - acer,aspire1
- qcom,sc7180-idp
- const: qcom,sc7180
@@ -455,6 +444,11 @@ properties:
- const: google,lazor-rev8
- const: qcom,sc7180
+ - description: Acer Chromebook Spin 513 (rev9)
+ items:
+ - const: google,lazor-rev9
+ - const: qcom,sc7180
+
- description: Acer Chromebook Spin 513 (newest rev)
items:
- const: google,lazor
@@ -476,6 +470,11 @@ properties:
- const: google,lazor-rev8-sku2
- const: qcom,sc7180
+ - description: Acer Chromebook Spin 513 with KB Backlight (rev9)
+ items:
+ - const: google,lazor-rev9-sku2
+ - const: qcom,sc7180
+
- description: Acer Chromebook Spin 513 with KB Backlight (newest rev)
items:
- const: google,lazor-sku2
@@ -497,9 +496,16 @@ properties:
- const: google,lazor-rev8-sku0
- const: qcom,sc7180
+ - description: Acer Chromebook Spin 513 with LTE (rev9)
+ items:
+ - const: google,lazor-rev9-sku0
+ - const: google,lazor-rev9-sku10
+ - const: qcom,sc7180
+
- description: Acer Chromebook Spin 513 with LTE (newest rev)
items:
- const: google,lazor-sku0
+ - const: google,lazor-sku10
- const: qcom,sc7180
- description: Acer Chromebook 511 (rev4 - rev8)
@@ -511,9 +517,16 @@ properties:
- const: google,lazor-rev8-sku4
- const: qcom,sc7180
+ - description: Acer Chromebook 511 (rev9)
+ items:
+ - const: google,lazor-rev9-sku4
+ - const: google,lazor-rev9-sku15
+ - const: qcom,sc7180
+
- description: Acer Chromebook 511 (newest rev)
items:
- const: google,lazor-sku4
+ - const: google,lazor-sku15
- const: qcom,sc7180
- description: Acer Chromebook 511 without Touchscreen (rev4)
@@ -530,9 +543,16 @@ properties:
- const: google,lazor-rev8-sku6
- const: qcom,sc7180
+ - description: Acer Chromebook 511 without Touchscreen (rev9)
+ items:
+ - const: google,lazor-rev9-sku6
+ - const: google,lazor-rev9-sku18
+ - const: qcom,sc7180
+
- description: Acer Chromebook 511 without Touchscreen (newest rev)
items:
- const: google,lazor-sku6
+ - const: google,lazor-sku18
- const: qcom,sc7180
- description: Google Mrbland with AUO panel (rev0)
@@ -763,13 +783,17 @@ properties:
- items:
- enum:
+ - huawei,gaokun3
- lenovo,thinkpad-x13s
+ - microsoft,arcata
+ - microsoft,blackrock
- qcom,sc8280xp-crd
- qcom,sc8280xp-qrd
- const: qcom,sc8280xp
- items:
- enum:
+ - lenovo,tbx605f
- motorola,ali
- const: qcom,sdm450
@@ -821,6 +845,11 @@ properties:
- items:
- enum:
+ - qcom,sdx75-idp
+ - const: qcom,sdx75
+
+ - items:
+ - enum:
- qcom,ipq6018-cp01
- qcom,ipq6018-cp01-c1
- const: qcom,ipq6018
@@ -834,6 +863,18 @@ properties:
- items:
- enum:
+ - qcom,monaco-evk
+ - qcom,qcs8300-ride
+ - const: qcom,qcs8300
+
+ - items:
+ - enum:
+ - qcom,qcs615-ride
+ - const: qcom,qcs615
+ - const: qcom,sm6150
+
+ - items:
+ - enum:
- qcom,sa8155p-adp
- const: qcom,sa8155p
@@ -846,13 +887,20 @@ properties:
- items:
- enum:
- qcom,sa8775p-ride
+ - qcom,sa8775p-ride-r3
+ - const: qcom,sa8775p
+
+ - items:
+ - enum:
+ - qcom,lemans-evk
+ - qcom,qcs9100-ride
+ - qcom,qcs9100-ride-r3
+ - const: qcom,qcs9100
- const: qcom,sa8775p
- items:
- enum:
- - google,cheza
- - google,cheza-rev1
- - google,cheza-rev2
+ - huawei,planck
- lenovo,yoga-c630
- lg,judyln
- lg,judyp
@@ -884,6 +932,16 @@ properties:
- items:
- enum:
+ - qcom,sm4450-qrd
+ - const: qcom,sm4450
+
+ - items:
+ - enum:
+ - fxtec,pro1x
+ - const: qcom,sm6115
+
+ - items:
+ - enum:
- lenovo,j606f
- const: qcom,sm6115p
- const: qcom,sm6115
@@ -891,6 +949,7 @@ properties:
- items:
- enum:
- sony,pdx201
+ - xiaomi,ginkgo
- xiaomi,laurel-sprout
- const: qcom,sm6125
@@ -906,11 +965,27 @@ properties:
- items:
- enum:
+ - xiaomi,curtana
+ - xiaomi,joyeuse
+ - const: qcom,sm7125
+
+ - items:
+ - enum:
+ - google,sunfish
+ - const: qcom,sm7150
+
+ - items:
+ - enum:
- fairphone,fp4
- const: qcom,sm7225
- items:
- enum:
+ - nothing,spacewar
+ - const: qcom,sm7325
+
+ - items:
+ - enum:
- microsoft,surface-duo
- qcom,sm8150-hdk
- qcom,sm8150-mtp
@@ -923,9 +998,12 @@ properties:
- qcom,qrb5165-rb5
- qcom,sm8250-hdk
- qcom,sm8250-mtp
+ - samsung,r8q
+ - samsung,x1q
- sony,pdx203-generic
- sony,pdx206-generic
- xiaomi,elish
+ - xiaomi,pipa
- const: qcom,sm8250
- items:
@@ -941,16 +1019,90 @@ properties:
- enum:
- qcom,sm8450-hdk
- qcom,sm8450-qrd
+ - samsung,r0q
- sony,pdx223
- sony,pdx224
- const: qcom,sm8450
- items:
- enum:
+ - qcom,sm8550-hdk
- qcom,sm8550-mtp
- qcom,sm8550-qrd
+ - samsung,q5q
+ - sony,pdx234
+ - const: qcom,sm8550
+
+ - items:
+ - enum:
+ - qcom,qcs8550-aim300-aiot
+ - const: qcom,qcs8550-aim300
+ - const: qcom,qcs8550
- const: qcom,sm8550
+ - items:
+ - enum:
+ - qcom,sm8650-hdk
+ - qcom,sm8650-mtp
+ - qcom,sm8650-qrd
+ - const: qcom,sm8650
+
+ - items:
+ - enum:
+ - qcom,sm8750-mtp
+ - qcom,sm8750-qrd
+ - const: qcom,sm8750
+
+ - items:
+ - enum:
+ - qcom,x1e001de-devkit
+ - const: qcom,x1e001de
+ - const: qcom,x1e80100
+
+ - items:
+ - enum:
+ - lenovo,thinkpad-t14s-lcd
+ - lenovo,thinkpad-t14s-oled
+ - const: lenovo,thinkpad-t14s
+ - const: qcom,x1e78100
+ - const: qcom,x1e80100
+
+ - items:
+ - enum:
+ - asus,vivobook-s15
+ - asus,zenbook-a14-ux3407ra
+ - dell,inspiron-14-plus-7441
+ - dell,latitude-7455
+ - dell,xps13-9345
+ - hp,elitebook-ultra-g1q
+ - hp,omnibook-x14
+ - lenovo,yoga-slim7x
+ - microsoft,romulus13
+ - microsoft,romulus15
+ - qcom,x1e80100-crd
+ - qcom,x1e80100-qcp
+ - const: qcom,x1e80100
+
+ - items:
+ - enum:
+ - qcom,hamoa-iot-evk
+ - const: qcom,hamoa-iot-som
+ - const: qcom,x1e80100
+
+ - items:
+ - enum:
+ - asus,zenbook-a14-ux3407qa-lcd
+ - asus,zenbook-a14-ux3407qa-oled
+ - const: asus,zenbook-a14-ux3407qa
+ - const: qcom,x1p42100
+
+ - items:
+ - enum:
+ - hp,omnibook-x14-fe1
+ - lenovo,thinkbook-16
+ - qcom,x1p42100-crd
+ - const: qcom,x1p42100
+
# Board compatibles go above
qcom,msm-id:
@@ -1028,6 +1180,8 @@ allOf:
- qcom,apq8026
- qcom,apq8094
- qcom,apq8096
+ - qcom,msm8917
+ - qcom,msm8937
- qcom,msm8939
- qcom,msm8953
- qcom,msm8956
@@ -1042,10 +1196,12 @@ allOf:
- qcom,sdm845
- qcom,sdx55
- qcom,sdx65
+ - qcom,sdx75
- qcom,sm4250
- qcom,sm6115
- qcom,sm6125
- qcom,sm6350
+ - qcom,sm7125
- qcom,sm7225
- qcom,sm8150
- qcom,sm8250
diff --git a/Documentation/devicetree/bindings/arm/rockchip.yaml b/Documentation/devicetree/bindings/arm/rockchip.yaml
index ec141c937b8b..d496421dbd87 100644
--- a/Documentation/devicetree/bindings/arm/rockchip.yaml
+++ b/Documentation/devicetree/bindings/arm/rockchip.yaml
@@ -15,6 +15,11 @@ properties:
compatible:
oneOf:
+ - description: 100ASK DshanPi A1 board
+ items:
+ - const: 100ask,dshanpi-a1
+ - const: rockchip,rk3576
+
- description: 96boards RK3399 Ficus (ROCK960 Enterprise Edition)
items:
- const: vamrs,ficus
@@ -25,51 +30,93 @@ properties:
- const: vamrs,rock960
- const: rockchip,rk3399
+ - description: 9Tripod X3568 series board
+ items:
+ - enum:
+ - 9tripod,x3568-v4
+ - const: rockchip,rk3568
+
- description: Amarula Vyasa RK3288
items:
- const: amarula,vyasa-rk3288
- const: rockchip,rk3288
- - description: Anbernic RG351M
+ - description: Anbernic RK3326 Handheld Gaming Console
items:
- - const: anbernic,rg351m
+ - enum:
+ - anbernic,rg351m
+ - anbernic,rg351v
- const: rockchip,rk3326
- - description: Anbernic RG353P
+ - description: Anbernic RK3566 Handheld Gaming Console
items:
- - const: anbernic,rg353p
+ - enum:
+ - anbernic,rg353p
+ - anbernic,rg353ps
+ - anbernic,rg353v
+ - anbernic,rg353vs
+ - anbernic,rg503
+ - anbernic,rg-arc-d
+ - anbernic,rg-arc-s
- const: rockchip,rk3566
- - description: Anbernic RG353V
+ - description: Ariaboard Photonicat
items:
- - const: anbernic,rg353v
- - const: rockchip,rk3566
+ - const: ariaboard,photonicat
+ - const: rockchip,rk3568
- - description: Anbernic RG353VS
+ - description: ArmSoM Sige1 board
items:
- - const: anbernic,rg353vs
- - const: rockchip,rk3566
+ - const: armsom,sige1
+ - const: rockchip,rk3528
- - description: Anbernic RG503
+ - description: ArmSoM Sige5 board
items:
- - const: anbernic,rg503
- - const: rockchip,rk3566
+ - const: armsom,sige5
+ - const: rockchip,rk3576
+
+ - description: ArmSoM Sige7 board
+ items:
+ - const: armsom,sige7
+ - const: rockchip,rk3588
+
+ - description: ArmSoM LM7 SoM
+ items:
+ - enum:
+ - armsom,w3
+ - const: armsom,lm7
+ - const: rockchip,rk3588
- description: Asus Tinker board
items:
- - const: asus,rk3288-tinker
+ - enum:
+ - asus,rk3288-tinker
+ - asus,rk3288-tinker-s
- const: rockchip,rk3288
- - description: Asus Tinker board S
+ - description: Asus Tinker Board 3/3S
items:
- - const: asus,rk3288-tinker-s
- - const: rockchip,rk3288
+ - enum:
+ - asus,rk3566-tinker-board-3
+ - asus,rk3566-tinker-board-3s
+ - const: rockchip,rk3566
- description: Beelink A1
items:
- const: azw,beelink-a1
- const: rockchip,rk3328
+ - description: BigTreeTech CB2 Manta M4/8P
+ items:
+ - const: bigtreetech,cb2-manta
+ - const: bigtreetech,cb2
+ - const: rockchip,rk3566
+
+ - description: BigTreeTech Pi 2
+ items:
+ - const: bigtreetech,pi2
+ - const: rockchip,rk3566
+
- description: bq Curie 2 tablet
items:
- const: mundoreader,bq-curie2
@@ -90,16 +137,37 @@ properties:
- const: chipspark,rayeager-px2
- const: rockchip,rk3066a
+ - description: Cool Pi Compute Module 5(CM5) EVB
+ items:
+ - enum:
+ - coolpi,pi-cm5-evb
+ - const: coolpi,pi-cm5
+ - const: rockchip,rk3588
+
+ - description: Cool Pi CM5 GenBook
+ items:
+ - enum:
+ - coolpi,pi-cm5-genbook
+ - const: coolpi,pi-cm5
+ - const: rockchip,rk3588
+
+ - description: Cool Pi 4 Model B
+ items:
+ - const: coolpi,pi-4b
+ - const: rockchip,rk3588s
+
- description: Edgeble Neural Compute Module 2(Neu2) SoM based boards
items:
- const: edgeble,neural-compute-module-2-io # Edgeble Neural Compute Module 2 IO Board
- const: edgeble,neural-compute-module-2 # Edgeble Neural Compute Module 2 SoM
- const: rockchip,rv1126
- - description: Edgeble Neural Compute Module 6(Neu6) Model A SoM based boards
+ - description: Edgeble Neural Compute Module 6(Neu6) SoM based boards
items:
- - const: edgeble,neural-compute-module-6a-io # Edgeble Neural Compute Module 6A IO Board
- - const: edgeble,neural-compute-module-6a # Edgeble Neural Compute Module 6A SoM
+ - const: edgeble,neural-compute-module-6a-io # Edgeble NCM6A-IO Board
+ - enum:
+ - edgeble,neural-compute-module-6a # Edgeble Neural Compute Module 6A SoM
+ - edgeble,neural-compute-module-6b # Edgeble Neural Compute Module 6B SoM
- const: rockchip,rk3588
- description: Elgin RV1108 R1
@@ -135,6 +203,26 @@ properties:
- const: engicam,px30-core
- const: rockchip,px30
+ - description: Firefly iCore-3588Q-based boards
+ items:
+ - enum:
+ - mntre,reform2-rcore
+ - const: firefly,icore-3588q
+ - const: rockchip,rk3588
+
+ - description: Firefly Core-3588J-based boards
+ items:
+ - enum:
+ - firefly,itx-3588j
+ - const: firefly,core-3588j
+ - const: rockchip,rk3588
+
+ - description: Firefly Core-PX30-JD4 on MB-JD4-PX30 baseboard
+ items:
+ - const: firefly,px30-jd4-core-mb
+ - const: firefly,px30-jd4-core
+ - const: rockchip,px30
+
- description: Firefly Firefly-RK3288
items:
- enum:
@@ -180,18 +268,52 @@ properties:
- firefly,roc-rk3399-pc-plus
- const: rockchip,rk3399
+ - description: Firefly ROC-RK3576-PC
+ items:
+ - const: firefly,roc-rk3576-pc
+ - const: rockchip,rk3576
+
+ - description: Firefly ROC-RK3588-RT
+ items:
+ - const: firefly,roc-rk3588-rt
+ - const: rockchip,rk3588
+
- description: Firefly Station M2
items:
- const: firefly,rk3566-roc-pc
- const: rockchip,rk3566
+ - description: Firefly Station M3
+ items:
+ - const: firefly,rk3588s-roc-pc
+ - const: rockchip,rk3588s
+
+ - description: Firefly Station P2
+ items:
+ - const: firefly,rk3568-roc-pc
+ - const: rockchip,rk3568
+
+ - description: Forlinx FET3588-C SoM
+ items:
+ - enum:
+ - forlinx,ok3588-c
+ - const: forlinx,fet3588-c
+ - const: rockchip,rk3588
+
- description: FriendlyElec NanoPi R2 series boards
items:
- enum:
- friendlyarm,nanopi-r2c
+ - friendlyarm,nanopi-r2c-plus
- friendlyarm,nanopi-r2s
+ - friendlyarm,nanopi-r2s-plus
- const: rockchip,rk3328
+ - description: FriendlyElec NanoPi R3S
+ items:
+ - const: friendlyarm,nanopi-r3s
+ - const: rockchip,rk3566
+
- description: FriendlyElec NanoPi4 series boards
items:
- enum:
@@ -203,6 +325,12 @@ properties:
- friendlyarm,nanopi-r4s-enterprise
- const: rockchip,rk3399
+ - description: FriendlyElec NanoPi M5 series boards
+ items:
+ - enum:
+ - friendlyarm,nanopi-m5
+ - const: rockchip,rk3576
+
- description: FriendlyElec NanoPi R5 series boards
items:
- enum:
@@ -210,11 +338,57 @@ properties:
- friendlyarm,nanopi-r5s
- const: rockchip,rk3568
+ - description: FriendlyElec NanoPi R6 series boards
+ items:
+ - enum:
+ - friendlyarm,nanopi-r6c
+ - friendlyarm,nanopi-r6s
+ - const: rockchip,rk3588s
+
+ - description: FriendlyElec NanoPi R76S
+ items:
+ - const: friendlyarm,nanopi-r76s
+ - const: rockchip,rk3576
+
+ - description: FriendlyElec NanoPi Zero2
+ items:
+ - const: friendlyarm,nanopi-zero2
+ - const: rockchip,rk3528
+
+ - description: FriendlyElec NanoPC T6 series boards
+ items:
+ - enum:
+ - friendlyarm,nanopc-t6
+ - friendlyarm,nanopc-t6-lts
+ - const: rockchip,rk3588
+
+ - description: FriendlyElec CM3588-based boards
+ items:
+ - enum:
+ - friendlyarm,cm3588-nas
+ - const: friendlyarm,cm3588
+ - const: rockchip,rk3588
+
+ - description: GameForce Ace
+ items:
+ - const: gameforce,ace
+ - const: rockchip,rk3588s
+
+ - description: GameForce Chi
+ items:
+ - const: gameforce,chi
+ - const: rockchip,rk3326
+
- description: GeekBuying GeekBox
items:
- const: geekbuying,geekbox
- const: rockchip,rk3368
+ - description: Geniatech XPI-3128
+ items:
+ - const: geniatech,xpi-3128
+ - const: rockchip,rk3128
+
- description: Google Bob (Asus Chromebook Flip C101PA)
items:
- const: google,bob-rev13
@@ -504,6 +678,11 @@ properties:
- const: google,veyron
- const: rockchip,rk3288
+ - description: H96 Max V58 TV Box
+ items:
+ - const: haochuangyi,h96-max-v58
+ - const: rockchip,rk3588
+
- description: Haoyu MarsBoard RK3066
items:
- const: haoyu,marsboard-rk3066
@@ -526,7 +705,24 @@ properties:
- description: Hardkernel Odroid M1
items:
- - const: rockchip,rk3568-odroid-m1
+ - const: hardkernel,odroid-m1
+ - const: rockchip,rk3568
+
+ - description: Hardkernel Odroid M1S
+ items:
+ - const: hardkernel,odroid-m1s
+ - const: rockchip,rk3566
+
+ - description: Hardkernel Odroid M2
+ items:
+ - const: hardkernel,odroid-m2
+ - const: rockchip,rk3588s
+
+ - description: HINLINK H66K / H68K
+ items:
+ - enum:
+ - hinlink,h66k
+ - hinlink,h68k
- const: rockchip,rk3568
- description: Hugsun X99 TV Box
@@ -534,6 +730,11 @@ properties:
- const: hugsun,x99
- const: rockchip,rk3399
+ - description: Indiedroid Nova SBC
+ items:
+ - const: indiedroid,nova
+ - const: rockchip,rk3588s
+
- description: Khadas Edge series boards
items:
- enum:
@@ -562,11 +763,40 @@ properties:
- const: leez,p710
- const: rockchip,rk3399
+ - description: LCKFB Taishan Pi RK3566
+ items:
+ - const: lckfb,tspi-rk3566
+ - const: rockchip,rk3566
+
+ - description: LinkEase EasePi R1
+ items:
+ - const: linkease,easepi-r1
+ - const: rockchip,rk3568
+
+ - description: Luckfox Core3576 Module based boards
+ items:
+ - enum:
+ - luckfox,omni3576
+ - const: luckfox,core3576
+ - const: rockchip,rk3576
+
+ - description: Lunzn FastRhino R66S / R68S
+ items:
+ - enum:
+ - lunzn,fastrhino-r66s
+ - lunzn,fastrhino-r68s
+ - const: rockchip,rk3568
+
- description: mqmaker MiQi
items:
- const: mqmaker,miqi
- const: rockchip,rk3288
+ - description: Neardi LBA3368
+ items:
+ - const: neardi,lba3368
+ - const: rockchip,rk3368
+
- description: Netxeon R89 board
items:
- const: netxeon,r89
@@ -577,9 +807,9 @@ properties:
- const: openailab,eaidk-610
- const: rockchip,rk3399
- - description: Orange Pi RK3399 board
+ - description: Xunlong Orange Pi RK3399 board
items:
- - const: rockchip,rk3399-orangepi
+ - const: xunlong,rk3399-orangepi
- const: rockchip,rk3399
- description: Phytec phyCORE-RK3288 Rapid Development Kit
@@ -588,7 +818,7 @@ properties:
- const: phytec,rk3288-phycore-som
- const: rockchip,rk3288
- - description: Pine64 PinebookPro
+ - description: Pine64 Pinebook Pro
items:
- const: pine64,pinebook-pro
- const: rockchip,rk3399
@@ -601,11 +831,19 @@ properties:
- const: pine64,pinenote
- const: rockchip,rk3566
- - description: Pine64 PinePhonePro
+ - description: Pine64 PinePhone Pro
items:
- const: pine64,pinephone-pro
- const: rockchip,rk3399
+ - description: Pine64 PineTab2
+ items:
+ - enum:
+ - pine64,pinetab2-v0.1
+ - pine64,pinetab2-v2.0
+ - const: pine64,pinetab2
+ - const: rockchip,rk3566
+
- description: Pine64 Rock64
items:
- const: pine64,rock64
@@ -626,7 +864,12 @@ properties:
- pine64,quartz64-b
- const: rockchip,rk3566
- - description: Pine64 SoQuartz SoM
+ - description: Pine64 QuartzPro64
+ items:
+ - const: pine64,quartzpro64
+ - const: rockchip,rk3588
+
+ - description: Pine64 SOQuartz
items:
- enum:
- pine64,soquartz-blade
@@ -635,7 +878,29 @@ properties:
- const: pine64,soquartz
- const: rockchip,rk3566
- - description: Radxa Compute Module 3(CM3)
+ - description: Powkiddy RK3566 Handheld Gaming Console
+ items:
+ - enum:
+ - powkiddy,rgb10max3
+ - powkiddy,rgb20sx
+ - powkiddy,rgb30
+ - powkiddy,rk2023
+ - powkiddy,x55
+ - const: rockchip,rk3566
+
+ - description: Protonic MECSBC board
+ items:
+ - const: prt,mecsbc
+ - const: rockchip,rk3568
+
+ - description: QNAP TS-x33 NAS devices
+ items:
+ - enum:
+ - qnap,ts233
+ - qnap,ts433
+ - const: rockchip,rk3568
+
+ - description: Radxa Compute Module 3 (CM3)
items:
- enum:
- radxa,cm3-io
@@ -649,11 +914,29 @@ properties:
- const: radxa,cm3i
- const: rockchip,rk3568
+ - description: Radxa E20C
+ items:
+ - const: radxa,e20c
+ - const: rockchip,rk3528
+
+ - description: Radxa E52C
+ items:
+ - const: radxa,e52c
+ - const: rockchip,rk3582
+ - const: rockchip,rk3588s
+
- description: Radxa Rock
items:
- const: radxa,rock
- const: rockchip,rk3188
+ - description: Radxa ROCK 2A/2F
+ items:
+ - enum:
+ - radxa,rock-2a
+ - radxa,rock-2f
+ - const: rockchip,rk3528
+
- description: Radxa ROCK Pi 4A/A+/B/B+/C
items:
- enum:
@@ -670,6 +953,16 @@ properties:
- const: radxa,rock-4c-plus
- const: rockchip,rk3399
+ - description: Radxa ROCK 4D
+ items:
+ - const: radxa,rock-4d
+ - const: rockchip,rk3576
+
+ - description: Radxa ROCK 4SE
+ items:
+ - const: radxa,rock-4se
+ - const: rockchip,rk3399
+
- description: Radxa ROCK Pi E
items:
- const: radxa,rockpi-e
@@ -692,26 +985,73 @@ properties:
- const: radxa,rockpis
- const: rockchip,rk3308
- - description: Radxa Rock2 Square
+ - description: Radxa Rock 2 Square
items:
- const: radxa,rock2-square
- const: rockchip,rk3288
- - description: Radxa ROCK3 Model A
+ - description: Radxa ROCK 3A
items:
- const: radxa,rock3a
- const: rockchip,rk3568
- - description: Radxa ROCK 5 Model A
+ - description: Radxa ROCK 3B
+ items:
+ - const: radxa,rock-3b
+ - const: rockchip,rk3568
+
+ - description: Radxa ROCK 3C
+ items:
+ - const: radxa,rock-3c
+ - const: rockchip,rk3566
+
+ - description: Radxa ROCK 5 ITX
+ items:
+ - const: radxa,rock-5-itx
+ - const: rockchip,rk3588
+
+ - description: Radxa ROCK 5A
items:
- const: radxa,rock-5a
- const: rockchip,rk3588s
- - description: Radxa ROCK 5 Model B
+ - description: Radxa ROCK 5B
items:
- const: radxa,rock-5b
- const: rockchip,rk3588
+ - description: Radxa ROCK 5B+
+ items:
+ - const: radxa,rock-5b-plus
+ - const: rockchip,rk3588
+
+ - description: Radxa ROCK 5C
+ items:
+ - const: radxa,rock-5c
+ - const: rockchip,rk3588s
+
+ - description: Radxa ROCK S0
+ items:
+ - const: radxa,rock-s0
+ - const: rockchip,rk3308
+
+ - description: Radxa ROCK 5T
+ items:
+ - const: radxa,rock-5t
+ - const: rockchip,rk3588
+
+ - description: Radxa ZERO 3W/3E
+ items:
+ - enum:
+ - radxa,zero-3e
+ - radxa,zero-3w
+ - const: rockchip,rk3566
+
+ - description: Relfor SAIB board
+ items:
+ - const: relfor,saib
+ - const: rockchip,rv1109
+
- description: Rikomagic MK808 v1
items:
- const: rikomagic,mk808
@@ -791,6 +1131,11 @@ properties:
- const: rockchip,rk3399-evb
- const: rockchip,rk3399
+ - description: Rockchip RK3399 Industry Evaluation board
+ items:
+ - const: rockchip,rk3399-evb-ind
+ - const: rockchip,rk3399
+
- description: Rockchip RK3399 Sapphire standalone
items:
- const: rockchip,rk3399-sapphire
@@ -801,16 +1146,88 @@ properties:
- const: rockchip,rk3399-sapphire-excavator
- const: rockchip,rk3399
+ - description: Rockchip RK3562 Evaluation board 2
+ items:
+ - const: rockchip,rk3562-evb2-v10
+ - const: rockchip,rk3562
+
+ - description: Rockchip RK3566 BOX Evaluation Demo board
+ items:
+ - const: rockchip,rk3566-box-demo
+ - const: rockchip,rk3566
+
+ - description: Rockchip RK3568 Evaluation board
+ items:
+ - const: rockchip,rk3568-evb1-v10
+ - const: rockchip,rk3568
+
+ - description: Rockchip RK3576 Evaluation board
+ items:
+ - const: rockchip,rk3576-evb1-v10
+ - const: rockchip,rk3576
+
- description: Rockchip RK3588 Evaluation board
items:
- - const: rockchip,rk3588-evb1-v10
+ - enum:
+ - rockchip,rk3588-evb1-v10
+ - rockchip,rk3588-evb2-v10
- const: rockchip,rk3588
+ - description: Rockchip RK3588S Evaluation board
+ items:
+ - const: rockchip,rk3588s-evb1-v10
+ - const: rockchip,rk3588s
+
- description: Rockchip RV1108 Evaluation board
items:
- const: rockchip,rv1108-evb
- const: rockchip,rv1108
+ - description: Rockchip Toybrick TB-RK3588X board
+ items:
+ - const: rockchip,rk3588-toybrick-x0
+ - const: rockchip,rk3588
+
+ - description: Sakura Pi RK3308B
+ items:
+ - const: sakurapi,rk3308-sakurapi-rk3308b
+ - const: rockchip,rk3308
+
+ - description: Sinovoip RK3308 Banana Pi P2 Pro
+ items:
+ - const: sinovoip,rk3308-bpi-p2pro
+ - const: rockchip,rk3308
+
+ - description: Sinovoip RK3568 Banana Pi R2 Pro
+ items:
+ - const: sinovoip,rk3568-bpi-r2pro
+ - const: rockchip,rk3568
+
+ - description: Sonoff iHost Smart Home Hub
+ items:
+ - const: itead,sonoff-ihost
+ - enum:
+ - rockchip,rv1126
+ - rockchip,rv1109
+
+ - description: Theobroma Systems PX30-Cobra
+ items:
+ - enum:
+ - tsd,px30-cobra-ltk050h3146w
+ - tsd,px30-cobra-ltk050h3146w-a2
+ - tsd,px30-cobra-ltk050h3148w
+ - tsd,px30-cobra-ltk500hd1829
+ - const: tsd,px30-cobra
+ - const: rockchip,px30
+
+ - description: Theobroma Systems PX30-PP1516
+ items:
+ - enum:
+ - tsd,px30-pp1516-ltk050h3146w-a2
+ - tsd,px30-pp1516-ltk050h3148w
+ - const: tsd,px30-pp1516
+ - const: rockchip,px30
+
- description: Theobroma Systems PX30-uQ7 with Haikou baseboard
items:
- const: tsd,px30-ringneck-haikou
@@ -826,11 +1243,48 @@ properties:
- const: tsd,rk3399-puma-haikou
- const: rockchip,rk3399
+ - description: Theobroma Systems RK3588-SBC Jaguar
+ items:
+ - const: tsd,rk3588-jaguar
+ - const: rockchip,rk3588
+
+ - description: Theobroma Systems RK3588-Q7 with Haikou baseboard
+ items:
+ - const: tsd,rk3588-tiger-haikou
+ - const: tsd,rk3588-tiger
+ - const: rockchip,rk3588
+
- description: Tronsmart Orion R68 Meta
items:
- const: tronsmart,orion-r68-meta
- const: rockchip,rk3368
+ - description: Turing RK1
+ items:
+ - const: turing,rk1
+ - const: rockchip,rk3588
+
+ - description: WolfVision PF5 mainboard
+ items:
+ - const: wolfvision,rk3568-pf5
+ - const: rockchip,rk3568
+
+ - description: Xunlong Orange Pi 3B
+ items:
+ - enum:
+ - xunlong,orangepi-3b-v1.1
+ - xunlong,orangepi-3b-v2.1
+ - const: xunlong,orangepi-3b
+ - const: rockchip,rk3566
+
+ - description: Xunlong Orange Pi 5 Max/Plus/Ultra
+ items:
+ - enum:
+ - xunlong,orangepi-5-max
+ - xunlong,orangepi-5-plus
+ - xunlong,orangepi-5-ultra
+ - const: rockchip,rk3588
+
- description: Xunlong Orange Pi R1 Plus / LTS
items:
- enum:
@@ -838,26 +1292,18 @@ properties:
- xunlong,orangepi-r1-plus-lts
- const: rockchip,rk3328
+ - description: Xunlong Orange Pi 5
+ items:
+ - enum:
+ - xunlong,orangepi-5
+ - xunlong,orangepi-5b
+ - const: rockchip,rk3588s
+
- description: Zkmagic A95X Z2
items:
- const: zkmagic,a95x-z2
- const: rockchip,rk3318
- - description: Rockchip RK3566 BOX Evaluation Demo board
- items:
- - const: rockchip,rk3566-box-demo
- - const: rockchip,rk3566
-
- - description: Rockchip RK3568 Evaluation board
- items:
- - const: rockchip,rk3568-evb1-v10
- - const: rockchip,rk3568
-
- - description: Rockchip RK3568 Banana Pi R2 Pro
- items:
- - const: rockchip,rk3568-bpi-r2pro
- - const: rockchip,rk3568
-
additionalProperties: true
...
diff --git a/Documentation/devicetree/bindings/arm/rockchip/pmu.yaml b/Documentation/devicetree/bindings/arm/rockchip/pmu.yaml
index b79c81cd9f0e..55b2200d6e75 100644
--- a/Documentation/devicetree/bindings/arm/rockchip/pmu.yaml
+++ b/Documentation/devicetree/bindings/arm/rockchip/pmu.yaml
@@ -25,7 +25,10 @@ select:
- rockchip,rk3288-pmu
- rockchip,rk3368-pmu
- rockchip,rk3399-pmu
+ - rockchip,rk3528-pmu
+ - rockchip,rk3562-pmu
- rockchip,rk3568-pmu
+ - rockchip,rk3576-pmu
- rockchip,rk3588-pmu
- rockchip,rv1126-pmu
@@ -42,7 +45,10 @@ properties:
- rockchip,rk3288-pmu
- rockchip,rk3368-pmu
- rockchip,rk3399-pmu
+ - rockchip,rk3528-pmu
+ - rockchip,rk3562-pmu
- rockchip,rk3568-pmu
+ - rockchip,rk3576-pmu
- rockchip,rk3588-pmu
- rockchip,rv1126-pmu
- const: syscon
@@ -51,11 +57,17 @@ properties:
reg:
maxItems: 1
+ power-controller:
+ type: object
+
+ reboot-mode:
+ type: object
+
required:
- compatible
- reg
-additionalProperties: true
+additionalProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/arm/rtsm-dcscb.txt b/Documentation/devicetree/bindings/arm/rtsm-dcscb.txt
deleted file mode 100644
index 3b8fbf3c00c5..000000000000
--- a/Documentation/devicetree/bindings/arm/rtsm-dcscb.txt
+++ /dev/null
@@ -1,19 +0,0 @@
-ARM Dual Cluster System Configuration Block
--------------------------------------------
-
-The Dual Cluster System Configuration Block (DCSCB) provides basic
-functionality for controlling clocks, resets and configuration pins in
-the Dual Cluster System implemented by the Real-Time System Model (RTSM).
-
-Required properties:
-
-- compatible : should be "arm,rtsm,dcscb"
-
-- reg : physical base address and the size of the registers window
-
-Example:
-
- dcscb@60000000 {
- compatible = "arm,rtsm,dcscb";
- reg = <0x60000000 0x1000>;
- };
diff --git a/Documentation/devicetree/bindings/arm/samsung/samsung-boards.yaml b/Documentation/devicetree/bindings/arm/samsung/samsung-boards.yaml
index deb2cf971871..f8e20e602c20 100644
--- a/Documentation/devicetree/bindings/arm/samsung/samsung-boards.yaml
+++ b/Documentation/devicetree/bindings/arm/samsung/samsung-boards.yaml
@@ -14,12 +14,6 @@ properties:
const: '/'
compatible:
oneOf:
- - description: S3C2416 based boards
- items:
- - enum:
- - samsung,smdk2416 # Samsung SMDK2416
- - const: samsung,s3c2416
-
- description: S3C6410 based boards
items:
- enum:
@@ -45,6 +39,12 @@ properties:
- const: samsung,aries
- const: samsung,s5pv210
+ - description: Exynos2200 based boards
+ items:
+ - enum:
+ - samsung,g0s # Samsung Galaxy S22+ (SM-S906B)
+ - const: samsung,exynos2200
+
- description: Exynos3250 based boards
items:
- enum:
@@ -72,6 +72,16 @@ properties:
- const: samsung,exynos4210
- const: samsung,exynos4
+ - description: Samsung Galaxy Tab3 family boards
+ items:
+ - enum:
+ - samsung,t310 # Samsung Galaxy Tab 3 8.0 WiFi (SM-T310)
+ - samsung,t311 # Samsung Galaxy Tab 3 8.0 3G (SM-T311)
+ - samsung,t315 # Samsung Galaxy Tab 3 8.0 LTE (SM-T315)
+ - const: samsung,tab3
+ - const: samsung,exynos4212
+ - const: samsung,exynos4
+
- description: Exynos4412 based boards
items:
- enum:
@@ -202,6 +212,14 @@ properties:
- samsung,exynos7-espresso # Samsung Exynos7 Espresso
- const: samsung,exynos7
+ - description: Exynos7870 based boards
+ items:
+ - enum:
+ - samsung,a2corelte # Samsung Galaxy A2 Core
+ - samsung,j6lte # Samsung Galaxy J6
+ - samsung,on7xelte # Samsung Galaxy J7 Prime
+ - const: samsung,exynos7870
+
- description: Exynos7885 based boards
items:
- enum:
@@ -214,12 +232,39 @@ properties:
- winlink,e850-96 # WinLink E850-96
- const: samsung,exynos850
+ - description: Exynos8895 based boards
+ items:
+ - enum:
+ - samsung,dreamlte # Samsung Galaxy S8 (SM-G950F)
+ - const: samsung,exynos8895
+
+ - description: Exynos9810 based boards
+ items:
+ - enum:
+ - samsung,starlte # Samsung Galaxy S9 (SM-G960F)
+ - const: samsung,exynos9810
+
+ - description: Exynos990 based boards
+ items:
+ - enum:
+ - samsung,c1s # Samsung Galaxy Note20 5G (SM-N981B)
+ - samsung,r8s # Samsung Galaxy S20 FE (SM-G780F)
+ - samsung,x1s # Samsung Galaxy S20 5G (SM-G981B)
+ - samsung,x1slte # Samsung Galaxy S20 (SM-G980F)
+ - const: samsung,exynos990
+
- description: Exynos Auto v9 based boards
items:
- enum:
- samsung,exynosautov9-sadk # Samsung Exynos Auto v9 SADK
- const: samsung,exynosautov9
+ - description: Exynos Auto v920 based boards
+ items:
+ - enum:
+ - samsung,exynosautov920-sadk # Samsung Exynos Auto v920 SADK
+ - const: samsung,exynosautov920
+
required:
- compatible
diff --git a/Documentation/devicetree/bindings/arm/socionext/synquacer.yaml b/Documentation/devicetree/bindings/arm/socionext/synquacer.yaml
new file mode 100644
index 000000000000..72554a4f1c92
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/socionext/synquacer.yaml
@@ -0,0 +1,28 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/socionext/synquacer.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Socionext Synquacer platform
+
+maintainers:
+ - Masahisa Kojima <masahisa.kojima@linaro.org>
+ - Jassi Brar <jaswinder.singh@linaro.org>
+
+description:
+ Socionext SC2A11B (Synquacer) SoC based boards
+
+properties:
+ $nodename:
+ const: '/'
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - socionext,developer-box
+ - const: socionext,synquacer
+
+additionalProperties: true
+
+...
diff --git a/Documentation/devicetree/bindings/arm/spear-misc.txt b/Documentation/devicetree/bindings/arm/spear-misc.txt
deleted file mode 100644
index e404e2556b4a..000000000000
--- a/Documentation/devicetree/bindings/arm/spear-misc.txt
+++ /dev/null
@@ -1,9 +0,0 @@
-SPEAr Misc configuration
-===========================
-SPEAr SOCs have some miscellaneous registers which are used to configure
-few properties of different peripheral controllers.
-
-misc node required properties:
-
-- compatible Should be "st,spear1340-misc", "syscon".
-- reg: Address range of misc space up to 8K
diff --git a/Documentation/devicetree/bindings/arm/sprd/sprd.yaml b/Documentation/devicetree/bindings/arm/sprd/sprd.yaml
index eaa67b8e0d6c..40fc3c8b9dce 100644
--- a/Documentation/devicetree/bindings/arm/sprd/sprd.yaml
+++ b/Documentation/devicetree/bindings/arm/sprd/sprd.yaml
@@ -35,6 +35,11 @@ properties:
- sprd,ums512-1h10
- const: sprd,ums512
+ - items:
+ - enum:
+ - sprd,ums9620-2h10
+ - const: sprd,ums9620
+
additionalProperties: true
...
diff --git a/Documentation/devicetree/bindings/arm/sti.yaml b/Documentation/devicetree/bindings/arm/sti.yaml
index 3ca054c64377..177358895fe1 100644
--- a/Documentation/devicetree/bindings/arm/sti.yaml
+++ b/Documentation/devicetree/bindings/arm/sti.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/arm/sti.yaml#
@@ -13,13 +13,16 @@ properties:
$nodename:
const: '/'
compatible:
- items:
- - enum:
- - st,stih415
- - st,stih416
- - st,stih407
- - st,stih410
- - st,stih418
+ oneOf:
+ - items:
+ - enum:
+ - st,stih410-b2260
+ - const: st,stih410
+ - items:
+ - enum:
+ - st,stih418-b2199
+ - st,stih418-b2264
+ - const: st,stih418
additionalProperties: true
diff --git a/Documentation/devicetree/bindings/arm/stm32/st,mlahb.yaml b/Documentation/devicetree/bindings/arm/stm32/st,mlahb.yaml
index 2297ad3f4774..4970b9167d1c 100644
--- a/Documentation/devicetree/bindings/arm/stm32/st,mlahb.yaml
+++ b/Documentation/devicetree/bindings/arm/stm32/st,mlahb.yaml
@@ -1,8 +1,8 @@
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/arm/stm32/st,mlahb.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/arm/stm32/st,mlahb.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: STMicroelectronics STM32 ML-AHB interconnect
@@ -54,19 +54,18 @@ unevaluatedProperties: false
examples:
- |
- mlahb: ahb@38000000 {
- compatible = "st,mlahb", "simple-bus";
- #address-cells = <1>;
- #size-cells = <1>;
- reg = <0x10000000 0x40000>;
- ranges;
- dma-ranges = <0x00000000 0x38000000 0x10000>,
- <0x10000000 0x10000000 0x60000>,
- <0x30000000 0x30000000 0x60000>;
+ ahb {
+ compatible = "st,mlahb", "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+ dma-ranges = <0x00000000 0x38000000 0x10000>,
+ <0x10000000 0x10000000 0x60000>,
+ <0x30000000 0x30000000 0x60000>;
- m4_rproc: m4@10000000 {
- reg = <0x10000000 0x40000>;
- };
+ m4_rproc: m4@10000000 {
+ reg = <0x10000000 0x40000>;
+ };
};
...
diff --git a/Documentation/devicetree/bindings/arm/stm32/st,stm32-syscon.yaml b/Documentation/devicetree/bindings/arm/stm32/st,stm32-syscon.yaml
index ad8e51aa01b0..95d2319afe23 100644
--- a/Documentation/devicetree/bindings/arm/stm32/st,stm32-syscon.yaml
+++ b/Documentation/devicetree/bindings/arm/stm32/st,stm32-syscon.yaml
@@ -1,8 +1,8 @@
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/arm/stm32/st,stm32-syscon.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/arm/stm32/st,stm32-syscon.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: STMicroelectronics STM32 Platforms System Controller
@@ -15,12 +15,15 @@ properties:
oneOf:
- items:
- enum:
- - st,stm32mp157-syscfg
- - st,stm32mp151-pwr-mcu
- - st,stm32-syscfg
- st,stm32-power-config
+ - st,stm32-syscfg
- st,stm32-tamp
- st,stm32f4-gcan
+ - st,stm32mp151-pwr-mcu
+ - st,stm32mp157-syscfg
+ - st,stm32mp21-syscfg
+ - st,stm32mp23-syscfg
+ - st,stm32mp25-syscfg
- const: syscon
- items:
- const: st,stm32-tamp
@@ -33,20 +36,31 @@ properties:
clocks:
maxItems: 1
+ "#clock-cells":
+ const: 0
+
required:
- compatible
- reg
-if:
- properties:
- compatible:
- contains:
- enum:
- - st,stm32mp157-syscfg
- - st,stm32f4-gcan
-then:
- required:
- - clocks
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - st,stm32mp157-syscfg
+ - st,stm32f4-gcan
+ then:
+ required:
+ - clocks
+ - if:
+ properties:
+ compatible:
+ const: st,stm32mp25-syscfg
+ then:
+ required:
+ - "#clock-cells"
additionalProperties: false
diff --git a/Documentation/devicetree/bindings/arm/stm32/stm32.yaml b/Documentation/devicetree/bindings/arm/stm32/stm32.yaml
index 13e34241145b..ad144c02eb7e 100644
--- a/Documentation/devicetree/bindings/arm/stm32/stm32.yaml
+++ b/Documentation/devicetree/bindings/arm/stm32/stm32.yaml
@@ -44,6 +44,10 @@ properties:
- const: st,stm32h743
- items:
- enum:
+ - st,stm32h747i-disco
+ - const: st,stm32h747
+ - items:
+ - enum:
- st,stm32h750i-art-pi
- const: st,stm32h750
- items:
@@ -51,20 +55,41 @@ properties:
- st,stm32mp135f-dk
- const: st,stm32mp135
+ - description: ST STM32MP133 based Boards
+ items:
+ - enum:
+ - pri,prihmb # Priva E-Measuringbox board
+ - const: st,stm32mp133
+
- description: ST STM32MP151 based Boards
items:
- enum:
+ - ply,plyaqm # Plymovent AQM board
+ - prt,mecio1r0 # Protonic MECIO1r0
+ - prt,mect1s # Protonic MECT1S
- prt,prtt1a # Protonic PRTT1A
- prt,prtt1c # Protonic PRTT1C
- prt,prtt1s # Protonic PRTT1S
- const: st,stm32mp151
+ - description: DH STM32MP135 DHCOR SoM based Boards
+ items:
+ - const: dh,stm32mp135f-dhcor-dhsbc
+ - const: dh,stm32mp135f-dhcor-som
+ - const: st,stm32mp135
+
- description: DH STM32MP151 DHCOR SoM based Boards
items:
- const: dh,stm32mp151a-dhcor-testbench
- const: dh,stm32mp151a-dhcor-som
- const: st,stm32mp151
+ - description: ST STM32MP153 based Boards
+ items:
+ - enum:
+ - prt,mecio1r1 # Protonic MECIO1r1
+ - const: st,stm32mp153
+
- description: DH STM32MP153 DHCOM SoM based Boards
items:
- const: dh,stm32mp153c-dhcom-drc02
@@ -77,34 +102,34 @@ properties:
- const: dh,stm32mp153c-dhcor-som
- const: st,stm32mp153
+ - description: Octavo OSD32MP153 System-in-Package based boards
+ items:
+ - enum:
+ - lxa,stm32mp153c-fairytux2-gen1 # Linux Automation FairyTux 2 (Generation 1)
+ - lxa,stm32mp153c-fairytux2-gen2 # Linux Automation FairyTux 2 (Generation 2)
+ - lxa,stm32mp153c-tac-gen3 # Linux Automation TAC (Generation 3)
+ - const: oct,stm32mp153x-osd32
+ - const: st,stm32mp153
+
- items:
- enum:
- shiratech,stm32mp157a-iot-box # IoT Box
- shiratech,stm32mp157a-stinger96 # Stinger96
- st,stm32mp157c-ed1
+ - st,stm32mp157c-ed1-scmi
- st,stm32mp157a-dk1
+ - st,stm32mp157a-dk1-scmi
- st,stm32mp157c-dk2
+ - st,stm32mp157c-dk2-scmi
+ - st,stm32mp157f-dk2
- const: st,stm32mp157
- items:
- - const: st,stm32mp157a-dk1-scmi
- - const: st,stm32mp157a-dk1
- - const: st,stm32mp157
- - items:
- - const: st,stm32mp157c-dk2-scmi
- - const: st,stm32mp157c-dk2
- - const: st,stm32mp157
- - items:
- - const: st,stm32mp157c-ed1-scmi
- - const: st,stm32mp157c-ed1
- - const: st,stm32mp157
- - items:
- const: st,stm32mp157c-ev1
- const: st,stm32mp157c-ed1
- const: st,stm32mp157
- items:
- const: st,stm32mp157c-ev1-scmi
- - const: st,stm32mp157c-ev1
- const: st,stm32mp157c-ed1
- const: st,stm32mp157
@@ -143,7 +168,10 @@ properties:
- description: Octavo OSD32MP15x System-in-Package based boards
items:
- enum:
- - lxa,stm32mp157c-mc1 # Linux Automation MC-1
+ - lxa,stm32mp157c-mc1 # Linux Automation MC-1
+ - lxa,stm32mp157c-tac-gen1 # Linux Automation TAC (Generation 1)
+ - lxa,stm32mp157c-tac-gen2 # Linux Automation TAC (Generation 2)
+ - oct,stm32mp157c-osd32-red # Octavo OSD32MP1 RED board
- const: oct,stm32mp15xx-osd32
- enum:
- st,stm32mp157
@@ -155,6 +183,36 @@ properties:
- const: seeed,stm32mp157c-odyssey-som
- const: st,stm32mp157
+ - description: Phytec STM32MP1 SoM based Boards
+ items:
+ - const: phytec,phycore-stm32mp1-3
+ - const: phytec,phycore-stm32mp157c-som
+ - const: st,stm32mp157
+
+ - description: Ultratronik STM32MP1 SBC based Boards
+ items:
+ - const: ultratronik,stm32mp157c-ultra-fly-sbc
+ - const: st,stm32mp157
+
+ - description: ST STM32MP257 based Boards
+ items:
+ - enum:
+ - st,stm32mp257f-dk
+ - st,stm32mp257f-ev1
+ - const: st,stm32mp257
+
+ - description: ST STM32MP235 based Boards
+ items:
+ - enum:
+ - st,stm32mp235f-dk
+ - const: st,stm32mp235
+
+ - description: ST STM32MP215 based Boards
+ items:
+ - enum:
+ - st,stm32mp215f-dk
+ - const: st,stm32mp215
+
additionalProperties: true
...
diff --git a/Documentation/devicetree/bindings/arm/sunxi.yaml b/Documentation/devicetree/bindings/arm/sunxi.yaml
index 013821f4a7b8..9e4627f97d7e 100644
--- a/Documentation/devicetree/bindings/arm/sunxi.yaml
+++ b/Documentation/devicetree/bindings/arm/sunxi.yaml
@@ -51,6 +51,31 @@ properties:
- const: allwinner,parrot
- const: allwinner,sun8i-a33
+ - description: Anbernic RG-Nano
+ items:
+ - const: anbernic,rg-nano
+ - const: allwinner,sun8i-v3s
+
+ - description: Anbernic RG35XX (2024)
+ items:
+ - const: anbernic,rg35xx-2024
+ - const: allwinner,sun50i-h700
+
+ - description: Anbernic RG35XX H
+ items:
+ - const: anbernic,rg35xx-h
+ - const: allwinner,sun50i-h700
+
+ - description: Anbernic RG35XX Plus
+ items:
+ - const: anbernic,rg35xx-plus
+ - const: allwinner,sun50i-h700
+
+ - description: Anbernic RG35XX SP
+ items:
+ - const: anbernic,rg35xx-sp
+ - const: allwinner,sun50i-h700
+
- description: Amarula A64 Relic
items:
- const: amarula,a64-relic
@@ -151,6 +176,17 @@ properties:
- const: roofull,beelink-x2
- const: allwinner,sun8i-h3
+ - description: BigTreeTech Manta M4/8P
+ items:
+ - const: bigtreetech,cb1-manta
+ - const: bigtreetech,cb1
+ - const: allwinner,sun50i-h616
+
+ - description: BigTreeTech Pi
+ items:
+ - const: bigtreetech,pi
+ - const: allwinner,sun50i-h616
+
- description: Chuwi V7 CW0825
items:
- const: chuwi,v7-cw0825
@@ -305,9 +341,11 @@ properties:
- const: allwinner,i12-tvbox
- const: allwinner,sun7i-a20
- - description: ICNova A20 SWAC
+ - description: ICnova A20
items:
- - const: incircuit,icnova-a20-swac
+ - enum:
+ - incircuit,icnova-a20-adb4006
+ - incircuit,icnova-a20-swac
- const: incircuit,icnova-a20
- const: allwinner,sun7i-a20
@@ -450,6 +488,11 @@ properties:
- const: lamobo,lamobo-r1
- const: allwinner,sun7i-a20
+ - description: Liontron H-A133L
+ items:
+ - const: liontron,h-a133l
+ - const: allwinner,sun50i-a100
+
- description: HAOYU Electronics Marsboard A10
items:
- const: haoyu,a10-marsboard
@@ -535,18 +578,31 @@ properties:
- const: msi,primo81
- const: allwinner,sun6i-a31s
- - description: Emlid Neutis N5 Developper Board
+ - description: Emlid Neutis N5 Developer Board
items:
- const: emlid,neutis-n5-devboard
- const: emlid,neutis-n5
- const: allwinner,sun50i-h5
- - description: Emlid Neutis N5H3 Developper Board
+ - description: Emlid Neutis N5H3 Developer Board
items:
- const: emlid,neutis-n5h3-devboard
- const: emlid,neutis-n5h3
- const: allwinner,sun8i-h3
+ - description: NetCube Systems Kumquat
+ items:
+ - const: netcube,kumquat
+ - const: allwinner,sun8i-v3s
+
+ - description: NetCube Systems Nagami SoM based boards
+ items:
+ - enum:
+ - netcube,nagami-basic-carrier
+ - netcube,nagami-keypad-carrier
+ - const: netcube,nagami
+ - const: allwinner,sun8i-t113s
+
- description: NextThing Co. CHIP
items:
- const: nextthing,chip
@@ -671,12 +727,12 @@ properties:
- const: olimex,a64-teres-i
- const: allwinner,sun50i-a64
- - description: Pine64
+ - description: Pine64 PINE A64
items:
- const: pine64,pine64
- const: allwinner,sun50i-a64
- - description: Pine64+
+ - description: Pine64 PINE A64+
items:
- const: pine64,pine64-plus
- const: allwinner,sun50i-a64
@@ -687,17 +743,17 @@ properties:
- const: sochip,s3
- const: allwinner,sun8i-v3
- - description: Pine64 PineH64 model A
+ - description: Pine64 PINE H64 Model A
items:
- const: pine64,pine-h64
- const: allwinner,sun50i-h6
- - description: Pine64 PineH64 model B
+ - description: Pine64 PINE H64 Model B
items:
- const: pine64,pine-h64-model-b
- const: allwinner,sun50i-h6
- - description: Pine64 LTS
+ - description: Pine64 PINE A64 LTS
items:
- const: pine64,pine64-lts
- const: allwinner,sun50i-r18
@@ -708,35 +764,26 @@ properties:
- const: pine64,pinebook
- const: allwinner,sun50i-a64
- - description: Pine64 PinePhone Developer Batch (1.0)
- items:
- - const: pine64,pinephone-1.0
- - const: pine64,pinephone
- - const: allwinner,sun50i-a64
-
- - description: Pine64 PinePhone Braveheart (1.1)
- items:
- - const: pine64,pinephone-1.1
- - const: pine64,pinephone
- - const: allwinner,sun50i-a64
-
- - description: Pine64 PinePhone (1.2)
+ - description: Pine64 PinePhone
items:
- - const: pine64,pinephone-1.2
+ - enum:
+ - pine64,pinephone-1.0 # Developer Batch (1.0)
+ - pine64,pinephone-1.1 # Braveheart (1.1)
+ - pine64,pinephone-1.2
- const: pine64,pinephone
- const: allwinner,sun50i-a64
- - description: Pine64 PineTab, Development Sample
+ - description: Pine64 PineTab Developer Sample
items:
- const: pine64,pinetab
- const: allwinner,sun50i-a64
- - description: Pine64 PineTab, Early Adopter's batch (and maybe later ones)
+ - description: Pine64 PineTab Early Adopter
items:
- const: pine64,pinetab-early-adopter
- const: allwinner,sun50i-a64
- - description: Pine64 SoPine Baseboard
+ - description: Pine64 SOPINE
items:
- const: pine64,sopine-baseboard
- const: pine64,sopine
@@ -752,6 +799,11 @@ properties:
- const: pocketbook,touch-lux-3
- const: allwinner,sun5i-a13
+ - description: PocketBook 614 Plus
+ items:
+ - const: pocketbook,614-plus
+ - const: allwinner,sun5i-a13
+
- description: Point of View Protab2-IPS9
items:
- const: pov,protab2-ips9
@@ -793,6 +845,23 @@ properties:
- const: allwinner,r7-tv-dongle
- const: allwinner,sun5i-a10s
+ - description: Radxa Cubie A5E
+ items:
+ - const: radxa,cubie-a5e
+ - const: allwinner,sun55i-a527
+
+ - description: Remix Mini PC
+ items:
+ - const: jide,remix-mini-pc
+ - const: allwinner,sun50i-h64
+ - const: allwinner,sun50i-a64
+
+ - description: RerVision A33-Vstar (with A33-Core1 SoM)
+ items:
+ - const: rervision,a33-vstar
+ - const: rervision,a33-core1
+ - const: allwinner,sun8i-a33
+
- description: RerVision H3-DVK
items:
- const: rervision,h3-dvk
@@ -813,6 +882,12 @@ properties:
- const: sinlinx,sina33
- const: allwinner,sun8i-a33
+ - description: Sipeed Longan Pi 3H board for the Sipeed Longan Module 3H
+ items:
+ - const: sipeed,longan-pi-3h
+ - const: sipeed,longan-module-3h
+ - const: allwinner,sun50i-h618
+
- description: SourceParts PopStick v1.1
items:
- const: sourceparts,popstick-v1.1
@@ -826,6 +901,11 @@ properties:
- const: allwinner,sl631
- const: allwinner,sun8i-v3
+ - description: Tanix TX1
+ items:
+ - const: oranth,tanix-tx1
+ - const: allwinner,sun50i-h616
+
- description: Tanix TX6
items:
- const: oranth,tanix-tx6
@@ -846,6 +926,11 @@ properties:
- const: topwise,a721
- const: allwinner,sun4i-a10
+ - description: Transpeed 8K618-T
+ items:
+ - const: transpeed,8k618-t
+ - const: allwinner,sun50i-h618
+
- description: Utoo P66
items:
- const: utoo,p66
@@ -886,6 +971,16 @@ properties:
- const: hechuang,x96-mate
- const: allwinner,sun50i-h616
+ - description: X96Q
+ items:
+ - const: amediatech,x96q
+ - const: allwinner,sun50i-h616
+
+ - description: X96Q Pro+
+ items:
+ - const: amediatech,x96q-pro-plus
+ - const: allwinner,sun55i-h728
+
- description: Xunlong OrangePi
items:
- const: xunlong,orangepi
@@ -901,6 +996,11 @@ properties:
- const: xunlong,orangepi-3
- const: allwinner,sun50i-h6
+ - description: Xunlong OrangePi 4A
+ items:
+ - const: xunlong,orangepi-4a
+ - const: allwinner,sun55i-t527
+
- description: Xunlong OrangePi Lite
items:
- const: xunlong,orangepi-lite
@@ -991,4 +1091,24 @@ properties:
- const: xunlong,orangepi-zero2
- const: allwinner,sun50i-h616
+ - description: Xunlong OrangePi Zero 2W
+ items:
+ - const: xunlong,orangepi-zero2w
+ - const: allwinner,sun50i-h618
+
+ - description: Xunlong OrangePi Zero 3
+ items:
+ - const: xunlong,orangepi-zero3
+ - const: allwinner,sun50i-h618
+
+ - description: YuzukiHD Avaota A1
+ items:
+ - const: yuzukihd,avaota-a1
+ - const: allwinner,sun55i-t527
+
+ - description: YuzukiHD Chameleon
+ items:
+ - const: yuzukihd,chameleon
+ - const: allwinner,sun50i-h618
+
additionalProperties: true
diff --git a/Documentation/devicetree/bindings/arm/syna.txt b/Documentation/devicetree/bindings/arm/syna.txt
deleted file mode 100644
index 851f48ead927..000000000000
--- a/Documentation/devicetree/bindings/arm/syna.txt
+++ /dev/null
@@ -1,101 +0,0 @@
-Synaptics SoC Device Tree Bindings
-
-According to https://www.synaptics.com/company/news/conexant-marvell
-Synaptics has acquired the Multimedia Solutions Business of Marvell, so
-berlin SoCs are now Synaptics' SoCs now.
-
----------------------------------------------------------------
-
-Work in progress statement:
-
-Device tree files and bindings applying to Marvell Berlin SoCs and boards are
-considered "unstable". Any Marvell Berlin device tree binding may change at any
-time. Be sure to use a device tree binary and a kernel image generated from the
-same source tree.
-
-Please refer to Documentation/devicetree/bindings/ABI.rst for a definition of a
-stable binding/ABI.
-
----------------------------------------------------------------
-
-Boards with a SoC of the Marvell Berlin family, e.g. Armada 1500
-shall have the following properties:
-
-* Required root node properties:
-compatible: must contain "marvell,berlin"
-
-In addition, the above compatible shall be extended with the specific
-SoC and board used. Currently known SoC compatibles are:
- "marvell,berlin2" for Marvell Armada 1500 (BG2, 88DE3100),
- "marvell,berlin2cd" for Marvell Armada 1500-mini (BG2CD, 88DE3005)
- "marvell,berlin2ct" for Marvell Armada ? (BG2CT, 88DE????)
- "marvell,berlin2q" for Marvell Armada 1500-pro (BG2Q, 88DE3114)
- "marvell,berlin3" for Marvell Armada ? (BG3, 88DE????)
-
-* Example:
-
-/ {
- model = "Sony NSZ-GS7";
- compatible = "sony,nsz-gs7", "marvell,berlin2", "marvell,berlin";
-
- ...
-}
-
-* Marvell Berlin CPU control bindings
-
-CPU control register allows various operations on CPUs, like resetting them
-independently.
-
-Required properties:
-- compatible: should be "marvell,berlin-cpu-ctrl"
-- reg: address and length of the register set
-
-Example:
-
-cpu-ctrl@f7dd0000 {
- compatible = "marvell,berlin-cpu-ctrl";
- reg = <0xf7dd0000 0x10000>;
-};
-
-* Marvell Berlin2 chip control binding
-
-Marvell Berlin SoCs have a chip control register set providing several
-individual registers dealing with pinmux, padmux, clock, reset, and secondary
-CPU boot address. Unfortunately, the individual registers are spread among the
-chip control registers, so there should be a single DT node only providing the
-different functions which are described below.
-
-Required properties:
-- compatible:
- * the first and second values must be:
- "simple-mfd", "syscon"
-- reg: address and length of following register sets for
- BG2/BG2CD: chip control register set
- BG2Q: chip control register set and cpu pll registers
-
-* Marvell Berlin2 system control binding
-
-Marvell Berlin SoCs have a system control register set providing several
-individual registers dealing with pinmux, padmux, and reset.
-
-Required properties:
-- compatible:
- * the first and second values must be:
- "simple-mfd", "syscon"
-- reg: address and length of the system control register set
-
-Example:
-
-chip: chip-control@ea0000 {
- compatible = "simple-mfd", "syscon";
- reg = <0xea0000 0x400>;
-
- /* sub-device nodes */
-};
-
-sysctrl: system-controller@d000 {
- compatible = "simple-mfd", "syscon";
- reg = <0xd000 0x100>;
-
- /* sub-device nodes */
-};
diff --git a/Documentation/devicetree/bindings/arm/tegra.yaml b/Documentation/devicetree/bindings/arm/tegra.yaml
index 0df41f5b7e2a..50a31dba7bec 100644
--- a/Documentation/devicetree/bindings/arm/tegra.yaml
+++ b/Documentation/devicetree/bindings/arm/tegra.yaml
@@ -36,8 +36,12 @@ properties:
- toradex,colibri_t20-iris
- const: toradex,colibri_t20
- const: nvidia,tegra20
- - items:
- - const: asus,tf101
+ - description: ASUS Transformers T20 Device family
+ items:
+ - enum:
+ - asus,sl101
+ - asus,tf101
+ - asus,tf101g
- const: nvidia,tegra20
- items:
- const: acer,picasso
@@ -52,17 +56,30 @@ properties:
- nvidia,cardhu-a04
- const: nvidia,cardhu
- const: nvidia,tegra30
- - items:
- - const: asus,tf201
+ - description: ASUS Portable AiO P1801-T
+ items:
+ - const: asus,p1801-t
- const: nvidia,tegra30
- - items:
- - const: asus,tf300t
+ - description: ASUS Transformers Device family
+ items:
+ - enum:
+ - asus,tf201
+ - asus,tf300t
+ - asus,tf300tg
+ - asus,tf300tl
+ - asus,tf700t
- const: nvidia,tegra30
- - items:
- - const: asus,tf300tg
+ - description: Asus VivoTab RT
+ items:
+ - const: asus,tf600t
- const: nvidia,tegra30
- - items:
- - const: asus,tf700t
+ - description: LG Optimus 4X P880
+ items:
+ - const: lg,p880
+ - const: nvidia,tegra30
+ - description: LG Optimus Vu P895
+ items:
+ - const: lg,p895
- const: nvidia,tegra30
- items:
- const: toradex,apalis_t30-eval
@@ -120,12 +137,63 @@ properties:
- const: nvidia,tegra132
- const: nvidia,tegra124
- items:
+ - const: google,nyan-blaze-rev10
+ - const: google,nyan-blaze-rev9
+ - const: google,nyan-blaze-rev8
+ - const: google,nyan-blaze-rev7
+ - const: google,nyan-blaze-rev6
+ - const: google,nyan-blaze-rev5
+ - const: google,nyan-blaze-rev4
+ - const: google,nyan-blaze-rev3
+ - const: google,nyan-blaze-rev2
+ - const: google,nyan-blaze-rev1
+ - const: google,nyan-blaze-rev0
+ - const: google,nyan-blaze
+ - const: google,nyan
+ - const: nvidia,tegra124
+ - items:
+ - const: google,nyan-big-rev10
+ - const: google,nyan-big-rev9
+ - const: google,nyan-big-rev8
+ - const: google,nyan-big-rev7
+ - const: google,nyan-big-rev6
+ - const: google,nyan-big-rev5
+ - const: google,nyan-big-rev4
+ - const: google,nyan-big-rev3
+ - const: google,nyan-big-rev2
+ - const: google,nyan-big-rev1
+ - const: google,nyan-big-rev0
+ - const: google,nyan-big
+ - const: google,nyan
+ - const: nvidia,tegra124
+ - items:
+ - const: google,nyan-big-rev7
+ - const: google,nyan-big-rev6
+ - const: google,nyan-big-rev5
+ - const: google,nyan-big-rev4
+ - const: google,nyan-big-rev3
+ - const: google,nyan-big-rev2
+ - const: google,nyan-big-rev1
+ - const: google,nyan-big-rev0
+ - const: google,nyan-big
+ - const: google,nyan
+ - const: nvidia,tegra124
+ - description: Xiaomi Mi Pad (A0101)
+ items:
+ - const: xiaomi,mocha
+ - const: nvidia,tegra124
+ - items:
- enum:
- nvidia,darcy
- nvidia,p2371-0000
- nvidia,p2371-2180
- nvidia,p2571
- nvidia,p2894-0050-a08
+ - nvidia,p3450-0000
+ - const: nvidia,tegra210
+ - items:
+ - const: nvidia,p3541-0000
+ - const: nvidia,p3450-0000
- const: nvidia,tegra210
- description: Jetson TX2 Developer Kit
items:
@@ -167,6 +235,16 @@ properties:
- const: nvidia,p3737-0000+p3701-0000
- const: nvidia,p3701-0000
- const: nvidia,tegra234
+ - description: Jetson AGX Orin Developer Kit with Industrial Module
+ items:
+ - const: nvidia,p3737-0000+p3701-0008
+ - const: nvidia,p3701-0008
+ - const: nvidia,tegra234
+ - description: NVIDIA IGX Orin Development Kit
+ items:
+ - const: nvidia,p3740-0002+p3701-0008
+ - const: nvidia,p3701-0008
+ - const: nvidia,tegra234
- description: Jetson Orin NX
items:
- const: nvidia,p3767-0000
@@ -176,5 +254,19 @@ properties:
- const: nvidia,p3768-0000+p3767-0000
- const: nvidia,p3767-0000
- const: nvidia,tegra234
+ - description: Jetson Orin Nano
+ items:
+ - const: nvidia,p3767-0005
+ - const: nvidia,tegra234
+ - description: Jetson Orin Nano Developer Kit
+ items:
+ - const: nvidia,p3768-0000+p3767-0005
+ - const: nvidia,p3767-0005
+ - const: nvidia,tegra234
+ - description: NVIDIA P3971-0089+P3834-0008 Engineering Reference Platform
+ items:
+ - const: nvidia,p3971-0089+p3834-0008
+ - const: nvidia,p3834-0008
+ - const: nvidia,tegra264
additionalProperties: true
diff --git a/Documentation/devicetree/bindings/arm/tegra/nvidia,nvec.txt b/Documentation/devicetree/bindings/arm/tegra/nvidia,nvec.txt
deleted file mode 100644
index 5ae601e7f51f..000000000000
--- a/Documentation/devicetree/bindings/arm/tegra/nvidia,nvec.txt
+++ /dev/null
@@ -1,21 +0,0 @@
-NVIDIA compliant embedded controller
-
-Required properties:
-- compatible : should be "nvidia,nvec".
-- reg : the iomem of the i2c slave controller
-- interrupts : the interrupt line of the i2c slave controller
-- clock-frequency : the frequency of the i2c bus
-- gpios : the gpio used for ec request
-- slave-addr: the i2c address of the slave controller
-- clocks : Must contain an entry for each entry in clock-names.
- See ../clocks/clock-bindings.txt for details.
-- clock-names : Must include the following entries:
- Tegra20/Tegra30:
- - div-clk
- - fast-clk
- Tegra114:
- - div-clk
-- resets : Must contain an entry for each entry in reset-names.
- See ../reset/reset.txt for details.
-- reset-names : Must include the following entries:
- - i2c
diff --git a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra186-pmc.yaml b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra186-pmc.yaml
index 0faa403f68c8..be70819020c5 100644
--- a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra186-pmc.yaml
+++ b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra186-pmc.yaml
@@ -16,6 +16,7 @@ properties:
- nvidia,tegra186-pmc
- nvidia,tegra194-pmc
- nvidia,tegra234-pmc
+ - nvidia,tegra264-pmc
reg:
minItems: 4
@@ -27,7 +28,7 @@ properties:
- const: pmc
- const: wake
- const: aotag
- - const: scratch
+ - enum: [ scratch, misc ]
- const: misc
interrupt-controller: true
@@ -41,25 +42,43 @@ properties:
description: If present, inverts the PMU interrupt signal.
$ref: /schemas/types.yaml#/definitions/flag
-if:
- properties:
- compatible:
- contains:
- const: nvidia,tegra186-pmc
-then:
- properties:
- reg:
- maxItems: 4
-
- reg-names:
- maxItems: 4
-else:
- properties:
- reg:
- minItems: 5
-
- reg-names:
- minItems: 5
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: nvidia,tegra186-pmc
+ then:
+ properties:
+ reg:
+ maxItems: 4
+ reg-names:
+ maxItems: 4
+ contains:
+ const: scratch
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: nvidia,tegra194-pmc
+ then:
+ properties:
+ reg:
+ minItems: 5
+ reg-names:
+ minItems: 5
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: nvidia,tegra234-pmc
+ then:
+ properties:
+ reg-names:
+ contains:
+ const: misc
patternProperties:
"^[a-z0-9]+-[a-z0-9]+$":
diff --git a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-ahb.txt b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-ahb.txt
deleted file mode 100644
index 9a4295b54539..000000000000
--- a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-ahb.txt
+++ /dev/null
@@ -1,17 +0,0 @@
-NVIDIA Tegra AHB
-
-Required properties:
-- compatible : For Tegra20, must contain "nvidia,tegra20-ahb". For
- Tegra30, must contain "nvidia,tegra30-ahb". Otherwise, must contain
- '"nvidia,<chip>-ahb", "nvidia,tegra30-ahb"' where <chip> is tegra124,
- tegra132, or tegra210.
-- reg : Should contain 1 register ranges(address and length). For
- Tegra20, Tegra30, and Tegra114 chips, the value must be <0x6000c004
- 0x10c>. For Tegra124, Tegra132 and Tegra210 chips, the value should
- be be <0x6000c000 0x150>.
-
-Example (for a Tegra20 chip):
- ahb: ahb@6000c004 {
- compatible = "nvidia,tegra20-ahb";
- reg = <0x6000c004 0x10c>; /* AHB Arbitration + Gizmo Controller */
- };
diff --git a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-flowctrl.txt b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-flowctrl.txt
deleted file mode 100644
index a855c1bffc0f..000000000000
--- a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-flowctrl.txt
+++ /dev/null
@@ -1,18 +0,0 @@
-NVIDIA Tegra Flow Controller
-
-Required properties:
-- compatible: Should contain one of the following:
- - "nvidia,tegra20-flowctrl": for Tegra20
- - "nvidia,tegra30-flowctrl": for Tegra30
- - "nvidia,tegra114-flowctrl": for Tegra114
- - "nvidia,tegra124-flowctrl": for Tegra124
- - "nvidia,tegra132-flowctrl", "nvidia,tegra124-flowctrl": for Tegra132
- - "nvidia,tegra210-flowctrl": for Tegra210
-- reg: Should contain one register range (address and length)
-
-Example:
-
- flow-controller@60007000 {
- compatible = "nvidia,tegra20-flowctrl";
- reg = <0x60007000 0x1000>;
- };
diff --git a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.yaml b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.yaml
deleted file mode 100644
index 89191cfdf619..000000000000
--- a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.yaml
+++ /dev/null
@@ -1,393 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0
-%YAML 1.2
----
-$id: http://devicetree.org/schemas/arm/tegra/nvidia,tegra20-pmc.yaml#
-$schema: http://devicetree.org/meta-schemas/core.yaml#
-
-title: Tegra Power Management Controller (PMC)
-
-maintainers:
- - Thierry Reding <thierry.reding@gmail.com>
- - Jonathan Hunter <jonathanh@nvidia.com>
-
-properties:
- compatible:
- enum:
- - nvidia,tegra20-pmc
- - nvidia,tegra30-pmc
- - nvidia,tegra114-pmc
- - nvidia,tegra124-pmc
- - nvidia,tegra210-pmc
-
- reg:
- maxItems: 1
- description:
- Offset and length of the register set for the device.
-
- clock-names:
- items:
- - const: pclk
- - const: clk32k_in
- description:
- Must includes entries pclk and clk32k_in.
- pclk is the Tegra clock of that name and clk32k_in is 32KHz clock
- input to Tegra.
-
- clocks:
- maxItems: 2
- description:
- Must contain an entry for each entry in clock-names.
- See ../clocks/clocks-bindings.txt for details.
-
- '#clock-cells':
- const: 1
- description:
- Tegra PMC has clk_out_1, clk_out_2, and clk_out_3.
- PMC also has blink control which allows 32Khz clock output to
- Tegra blink pad.
- Consumer of PMC clock should specify the desired clock by having
- the clock ID in its "clocks" phandle cell with pmc clock provider.
- See include/dt-bindings/soc/tegra-pmc.h for the list of Tegra PMC
- clock IDs.
-
- '#interrupt-cells':
- const: 2
- description:
- Specifies number of cells needed to encode an interrupt source.
- The value must be 2.
-
- interrupt-controller: true
-
- nvidia,invert-interrupt:
- $ref: /schemas/types.yaml#/definitions/flag
- description: Inverts the PMU interrupt signal.
- The PMU is an external Power Management Unit, whose interrupt output
- signal is fed into the PMC. This signal is optionally inverted, and
- then fed into the ARM GIC. The PMC is not involved in the detection
- or handling of this interrupt signal, merely its inversion.
-
- nvidia,core-power-req-active-high:
- $ref: /schemas/types.yaml#/definitions/flag
- description: Core power request active-high.
-
- nvidia,sys-clock-req-active-high:
- $ref: /schemas/types.yaml#/definitions/flag
- description: System clock request active-high.
-
- nvidia,combined-power-req:
- $ref: /schemas/types.yaml#/definitions/flag
- description: combined power request for CPU and Core.
-
- nvidia,cpu-pwr-good-en:
- $ref: /schemas/types.yaml#/definitions/flag
- description:
- CPU power good signal from external PMIC to PMC is enabled.
-
- nvidia,suspend-mode:
- $ref: /schemas/types.yaml#/definitions/uint32
- enum: [0, 1, 2]
- description:
- The suspend mode that the platform should use.
- Mode 0 is for LP0, CPU + Core voltage off and DRAM in self-refresh
- Mode 1 is for LP1, CPU voltage off and DRAM in self-refresh
- Mode 2 is for LP2, CPU voltage off
-
- nvidia,cpu-pwr-good-time:
- $ref: /schemas/types.yaml#/definitions/uint32
- description: CPU power good time in uSec.
-
- nvidia,cpu-pwr-off-time:
- $ref: /schemas/types.yaml#/definitions/uint32
- description: CPU power off time in uSec.
-
- nvidia,core-pwr-good-time:
- $ref: /schemas/types.yaml#/definitions/uint32-array
- description:
- <Oscillator-stable-time Power-stable-time>
- Core power good time in uSec.
-
- nvidia,core-pwr-off-time:
- $ref: /schemas/types.yaml#/definitions/uint32
- description: Core power off time in uSec.
-
- nvidia,lp0-vec:
- $ref: /schemas/types.yaml#/definitions/uint32-array
- description:
- <start length> Starting address and length of LP0 vector.
- The LP0 vector contains the warm boot code that is executed
- by AVP when resuming from the LP0 state.
- The AVP (Audio-Video Processor) is an ARM7 processor and
- always being the first boot processor when chip is power on
- or resume from deep sleep mode. When the system is resumed
- from the deep sleep mode, the warm boot code will restore
- some PLLs, clocks and then brings up CPU0 for resuming the
- system.
-
- core-supply:
- description:
- Phandle to voltage regulator connected to the SoC Core power rail.
-
- core-domain:
- type: object
- description: |
- The vast majority of hardware blocks of Tegra SoC belong to a
- Core power domain, which has a dedicated voltage rail that powers
- the blocks.
-
- properties:
- operating-points-v2:
- description:
- Should contain level, voltages and opp-supported-hw property.
- The supported-hw is a bitfield indicating SoC speedo or process
- ID mask.
-
- "#power-domain-cells":
- const: 0
-
- required:
- - operating-points-v2
- - "#power-domain-cells"
-
- additionalProperties: false
-
- i2c-thermtrip:
- type: object
- description:
- On Tegra30, Tegra114 and Tegra124 if i2c-thermtrip subnode exists,
- hardware-triggered thermal reset will be enabled.
-
- properties:
- nvidia,i2c-controller-id:
- $ref: /schemas/types.yaml#/definitions/uint32
- description:
- ID of I2C controller to send poweroff command to PMU.
- Valid values are described in section 9.2.148
- "APBDEV_PMC_SCRATCH53_0" of the Tegra K1 Technical Reference
- Manual.
-
- nvidia,bus-addr:
- $ref: /schemas/types.yaml#/definitions/uint32
- description: Bus address of the PMU on the I2C bus.
-
- nvidia,reg-addr:
- $ref: /schemas/types.yaml#/definitions/uint32
- description: PMU I2C register address to issue poweroff command.
-
- nvidia,reg-data:
- $ref: /schemas/types.yaml#/definitions/uint32
- description: Poweroff command to write to PMU.
-
- nvidia,pinmux-id:
- $ref: /schemas/types.yaml#/definitions/uint32
- description:
- Pinmux used by the hardware when issuing Poweroff command.
- Defaults to 0. Valid values are described in section 12.5.2
- "Pinmux Support" of the Tegra4 Technical Reference Manual.
-
- required:
- - nvidia,i2c-controller-id
- - nvidia,bus-addr
- - nvidia,reg-addr
- - nvidia,reg-data
-
- additionalProperties: false
-
- powergates:
- type: object
- description: |
- This node contains a hierarchy of power domain nodes, which should
- match the powergates on the Tegra SoC. Each powergate node
- represents a power-domain on the Tegra SoC that can be power-gated
- by the Tegra PMC.
- Hardware blocks belonging to a power domain should contain
- "power-domains" property that is a phandle pointing to corresponding
- powergate node.
- The name of the powergate node should be one of the below. Note that
- not every powergate is applicable to all Tegra devices and the following
- list shows which powergates are applicable to which devices.
- Please refer to Tegra TRM for mode details on the powergate nodes to
- use for each power-gate block inside Tegra.
- Name Description Devices Applicable
- 3d 3D Graphics Tegra20/114/124/210
- 3d0 3D Graphics 0 Tegra30
- 3d1 3D Graphics 1 Tegra30
- aud Audio Tegra210
- dfd Debug Tegra210
- dis Display A Tegra114/124/210
- disb Display B Tegra114/124/210
- heg 2D Graphics Tegra30/114/124/210
- iram Internal RAM Tegra124/210
- mpe MPEG Encode All
- nvdec NVIDIA Video Decode Engine Tegra210
- nvjpg NVIDIA JPEG Engine Tegra210
- pcie PCIE Tegra20/30/124/210
- sata SATA Tegra30/124/210
- sor Display interfaces Tegra124/210
- ve2 Video Encode Engine 2 Tegra210
- venc Video Encode Engine All
- vdec Video Decode Engine Tegra20/30/114/124
- vic Video Imaging Compositor Tegra124/210
- xusba USB Partition A Tegra114/124/210
- xusbb USB Partition B Tegra114/124/210
- xusbc USB Partition C Tegra114/124/210
-
- patternProperties:
- "^[a-z0-9]+$":
- type: object
- additionalProperties: false
-
- properties:
- clocks:
- minItems: 1
- maxItems: 8
- description:
- Must contain an entry for each clock required by the PMC
- for controlling a power-gate.
- See ../clocks/clock-bindings.txt document for more details.
-
- resets:
- minItems: 1
- maxItems: 8
- description:
- Must contain an entry for each reset required by the PMC
- for controlling a power-gate.
- See ../reset/reset.txt for more details.
-
- power-domains:
- maxItems: 1
-
- '#power-domain-cells':
- const: 0
- description: Must be 0.
-
- required:
- - clocks
- - resets
- - '#power-domain-cells'
-
- additionalProperties: false
-
-patternProperties:
- "^[a-f0-9]+-[a-f0-9]+$":
- type: object
- description:
- This is a Pad configuration node. On Tegra SOCs a pad is a set of
- pins which are configured as a group. The pin grouping is a fixed
- attribute of the hardware. The PMC can be used to set pad power state
- and signaling voltage. A pad can be either in active or power down mode.
- The support for power state and signaling voltage configuration varies
- depending on the pad in question. 3.3V and 1.8V signaling voltages
- are supported on pins where software controllable signaling voltage
- switching is available.
-
- The pad configuration state nodes are placed under the pmc node and they
- are referred to by the pinctrl client properties. For more information
- see Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt.
- The pad name should be used as the value of the pins property in pin
- configuration nodes.
-
- The following pads are present on Tegra124 and Tegra132
- audio, bb, cam, comp, csia, csb, cse, dsi, dsib, dsic, dsid, hdmi, hsic,
- hv, lvds, mipi-bias, nand, pex-bias, pex-clk1, pex-clk2, pex-cntrl,
- sdmmc1, sdmmc3, sdmmc4, sys_ddc, uart, usb0, usb1, usb2, usb_bias.
-
- The following pads are present on Tegra210
- audio, audio-hv, cam, csia, csib, csic, csid, csie, csif, dbg,
- debug-nonao, dmic, dp, dsi, dsib, dsic, dsid, emmc, emmc2, gpio, hdmi,
- hsic, lvds, mipi-bias, pex-bias, pex-clk1, pex-clk2, pex-cntrl, sdmmc1,
- sdmmc3, spi, spi-hv, uart, usb0, usb1, usb2, usb3, usb-bias.
-
- properties:
- pins:
- $ref: /schemas/types.yaml#/definitions/string
- description: Must contain name of the pad(s) to be configured.
-
- low-power-enable:
- $ref: /schemas/types.yaml#/definitions/flag
- description: Configure the pad into power down mode.
-
- low-power-disable:
- $ref: /schemas/types.yaml#/definitions/flag
- description: Configure the pad into active mode.
-
- power-source:
- $ref: /schemas/types.yaml#/definitions/uint32
- description:
- Must contain either TEGRA_IO_PAD_VOLTAGE_1V8 or
- TEGRA_IO_PAD_VOLTAGE_3V3 to select between signaling voltages.
- The values are defined in
- include/dt-bindings/pinctrl/pinctrl-tegra-io-pad.h.
- Power state can be configured on all Tegra124 and Tegra132
- pads. None of the Tegra124 or Tegra132 pads support signaling
- voltage switching.
- All of the listed Tegra210 pads except pex-cntrl support power
- state configuration. Signaling voltage switching is supported
- on below Tegra210 pads.
- audio, audio-hv, cam, dbg, dmic, gpio, pex-cntrl, sdmmc1,
- sdmmc3, spi, spi-hv, and uart.
-
- required:
- - pins
-
- additionalProperties: false
-
-required:
- - compatible
- - reg
- - clock-names
- - clocks
- - '#clock-cells'
-
-additionalProperties: false
-
-dependencies:
- "nvidia,suspend-mode": ["nvidia,core-pwr-off-time", "nvidia,cpu-pwr-off-time"]
- "nvidia,core-pwr-off-time": ["nvidia,core-pwr-good-time"]
- "nvidia,cpu-pwr-off-time": ["nvidia,cpu-pwr-good-time"]
-
-examples:
- - |
-
- #include <dt-bindings/clock/tegra210-car.h>
- #include <dt-bindings/pinctrl/pinctrl-tegra-io-pad.h>
- #include <dt-bindings/soc/tegra-pmc.h>
-
- tegra_pmc: pmc@7000e400 {
- compatible = "nvidia,tegra210-pmc";
- reg = <0x7000e400 0x400>;
- core-supply = <&regulator>;
- clocks = <&tegra_car TEGRA210_CLK_PCLK>, <&clk32k_in>;
- clock-names = "pclk", "clk32k_in";
- #clock-cells = <1>;
-
- nvidia,invert-interrupt;
- nvidia,suspend-mode = <0>;
- nvidia,cpu-pwr-good-time = <0>;
- nvidia,cpu-pwr-off-time = <0>;
- nvidia,core-pwr-good-time = <4587 3876>;
- nvidia,core-pwr-off-time = <39065>;
- nvidia,core-power-req-active-high;
- nvidia,sys-clock-req-active-high;
-
- pd_core: core-domain {
- operating-points-v2 = <&core_opp_table>;
- #power-domain-cells = <0>;
- };
-
- powergates {
- pd_audio: aud {
- clocks = <&tegra_car TEGRA210_CLK_APE>,
- <&tegra_car TEGRA210_CLK_APB2APE>;
- resets = <&tegra_car 198>;
- power-domains = <&pd_core>;
- #power-domain-cells = <0>;
- };
-
- pd_xusbss: xusba {
- clocks = <&tegra_car TEGRA210_CLK_XUSB_SS>;
- resets = <&tegra_car TEGRA210_CLK_XUSB_SS>;
- power-domains = <&pd_core>;
- #power-domain-cells = <0>;
- };
- };
- };
diff --git a/Documentation/devicetree/bindings/arm/ti/k3.yaml b/Documentation/devicetree/bindings/arm/ti/k3.yaml
index e1183f90bb06..85deda6d4292 100644
--- a/Documentation/devicetree/bindings/arm/ti/k3.yaml
+++ b/Documentation/devicetree/bindings/arm/ti/k3.yaml
@@ -25,14 +25,106 @@ properties:
- ti,am62a7-sk
- const: ti,am62a7
+ - description: K3 AM62D2 SoC and Boards
+ items:
+ - enum:
+ - ti,am62d2-evm
+ - const: ti,am62d2
+
+ - description: K3 AM62A7 SoC PHYTEC phyBOARD-Lyra
+ items:
+ - const: phytec,am62a7-phyboard-lyra-rdk
+ - const: phytec,am62a-phycore-som
+ - const: ti,am62a7
+
+ - description: K3 AM62L3 SoC and Boards
+ items:
+ - enum:
+ - ti,am62l3-evm
+ - const: ti,am62l3
+
+ - description: K3 AM62P5 SoC and Boards
+ items:
+ - enum:
+ - ti,am62p5-sk
+ - const: ti,am62p5
+
+ - description: K3 AM625 SoC PHYTEC phyBOARD-Lyra
+ items:
+ - const: phytec,am625-phyboard-lyra-rdk
+ - const: phytec,am62-phycore-som
+ - const: ti,am625
+
- description: K3 AM625 SoC
items:
- enum:
+ - beagle,am62-pocketbeagle2
- beagle,am625-beagleplay
- ti,am625-sk
- ti,am62-lp-sk
- const: ti,am625
+ - description: K3 AM6254atl SiP
+ items:
+ - enum:
+ - ti,am6254atl-sk
+ - const: ti,am6254atl
+ - const: ti,am625
+
+ - description: K3 AM62x SoC Toradex Verdin Modules and Carrier Boards
+ items:
+ - enum:
+ - toradex,verdin-am62-nonwifi-dahlia # Verdin AM62 Module on Dahlia
+ - toradex,verdin-am62-nonwifi-dev # Verdin AM62 Module on Verdin Development Board
+ - toradex,verdin-am62-nonwifi-ivy # Verdin AM62 Module on Ivy
+ - toradex,verdin-am62-nonwifi-mallow # Verdin AM62 Module on Mallow
+ - toradex,verdin-am62-nonwifi-yavia # Verdin AM62 Module on Yavia
+ - const: toradex,verdin-am62-nonwifi # Verdin AM62 Module without Wi-Fi / BT
+ - const: toradex,verdin-am62 # Verdin AM62 Module
+ - const: ti,am625
+
+ - description: K3 AM62x SoC Toradex Verdin Modules and Carrier Boards with Wi-Fi / BT
+ items:
+ - enum:
+ - toradex,verdin-am62-wifi-dahlia # Verdin AM62 Wi-Fi / BT Module on Dahlia
+ - toradex,verdin-am62-wifi-dev # Verdin AM62 Wi-Fi / BT M. on Verdin Development B.
+ - toradex,verdin-am62-wifi-ivy # Verdin AM62 Wi-Fi / BT Module on Ivy
+ - toradex,verdin-am62-wifi-mallow # Verdin AM62 Wi-Fi / BT Module on Mallow
+ - toradex,verdin-am62-wifi-yavia # Verdin AM62 Wi-Fi / BT Module on Yavia
+ - const: toradex,verdin-am62-wifi # Verdin AM62 Wi-Fi / BT Module
+ - const: toradex,verdin-am62 # Verdin AM62 Module
+ - const: ti,am625
+
+ - description: K3 AM62P5 SoC Toradex Verdin Modules and Carrier Boards
+ items:
+ - enum:
+ - toradex,verdin-am62p-nonwifi-dahlia # Verdin AM62P Module on Dahlia
+ - toradex,verdin-am62p-nonwifi-dev # Verdin AM62P Module on Verdin Development Board
+ - toradex,verdin-am62p-nonwifi-ivy # Verdin AM62P Module on Ivy
+ - toradex,verdin-am62p-nonwifi-mallow # Verdin AM62P Module on Mallow
+ - toradex,verdin-am62p-nonwifi-yavia # Verdin AM62P Module on Yavia
+ - const: toradex,verdin-am62p-nonwifi # Verdin AM62P Module without Wi-Fi / BT
+ - const: toradex,verdin-am62p # Verdin AM62P Module
+ - const: ti,am62p5
+
+ - description: K3 AM62P5 SoC Toradex Verdin Modules and Carrier Boards with Wi-Fi / BT
+ items:
+ - enum:
+ - toradex,verdin-am62p-wifi-dahlia # Verdin AM62P Wi-Fi / BT Module on Dahlia
+ - toradex,verdin-am62p-wifi-dev # Verdin AM62P Wi-Fi / BT M. on Verdin Development B.
+ - toradex,verdin-am62p-wifi-ivy # Verdin AM62P Wi-Fi / BT Module on Ivy
+ - toradex,verdin-am62p-wifi-mallow # Verdin AM62P Wi-Fi / BT Module on Mallow
+ - toradex,verdin-am62p-wifi-yavia # Verdin AM62P Wi-Fi / BT Module on Yavia
+ - const: toradex,verdin-am62p-wifi # Verdin AM62P Wi-Fi / BT Module
+ - const: toradex,verdin-am62p # Verdin AM62P Module
+ - const: ti,am62p5
+
+ - description: K3 AM62P5 SoC Variscite SOM and Carrier Boards
+ items:
+ - const: variscite,var-som-am62p-symphony
+ - const: variscite,var-som-am62p
+ - const: ti,am62p5
+
- description: K3 AM642 SoC
items:
- enum:
@@ -46,17 +138,40 @@ properties:
- const: phytec,am64-phycore-som
- const: ti,am642
+ - description: K3 AM642 SoC on TQ-Systems TQMaX4XxL SoM
+ items:
+ - enum:
+ - tq,am642-tqma6442l-mbax4xxl # MBaX4XxL base board
+ - const: tq,am642-tqma6442l
+ - const: ti,am642
+
+ - description: K3 AM642 SoC SolidRun SoM based boards
+ items:
+ - enum:
+ - solidrun,am642-hummingboard-t
+ - const: solidrun,am642-sr-som
+ - const: ti,am642
+
- description: K3 AM654 SoC
items:
- enum:
- siemens,iot2050-advanced
- siemens,iot2050-advanced-m2
- siemens,iot2050-advanced-pg2
+ - siemens,iot2050-advanced-sm
- siemens,iot2050-basic
- siemens,iot2050-basic-pg2
- ti,am654-evm
- const: ti,am654
+ - description: K3 AM69 SoC Toradex Aquila Modules and Carrier Boards
+ items:
+ - enum:
+ - toradex,aquila-am69-clover # Aquila AM69 Module on Clover Board
+ - toradex,aquila-am69-dev # Aquila AM69 Module on Aquila Development Board
+ - const: toradex,aquila-am69 # Aquila AM69 Module
+ - const: ti,j784s4
+
- description: K3 J7200 SoC
oneOf:
- const: ti,j7200
@@ -82,6 +197,27 @@ properties:
- ti,j721s2-evm
- const: ti,j721s2
+ - description: K3 J721s2 SoC Phytec SoM based boards
+ items:
+ - enum:
+ - phytec,am68-phyboard-izar
+ - const: phytec,am68-phycore-som
+ - const: ti,j721s2
+
+ - description: K3 J722S SoC and Boards
+ items:
+ - enum:
+ - beagle,am67a-beagley-ai
+ - kontron,sa67 # Kontron SMARC-sAM67 board
+ - ti,j722s-evm
+ - const: ti,j722s
+
+ - description: K3 J742S2 SoC
+ items:
+ - enum:
+ - ti,j742s2-evm
+ - const: ti,j742s2
+
- description: K3 J784s4 SoC
items:
- enum:
diff --git a/Documentation/devicetree/bindings/arm/ti/omap.yaml b/Documentation/devicetree/bindings/arm/ti/omap.yaml
new file mode 100644
index 000000000000..14f1b9d8f59d
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/ti/omap.yaml
@@ -0,0 +1,193 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/ti/omap.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments OMAP SoC architecture
+
+maintainers:
+ - Tony Lindgren <tony@atomide.com>
+
+description: Platforms based on Texas Instruments OMAP SoC architecture.
+
+properties:
+ $nodename:
+ const: '/'
+ compatible:
+ oneOf:
+
+ - description: TI OMAP2420 SoC based platforms
+ items:
+ - enum:
+ - nokia,n800
+ - nokia,n810
+ - nokia,n810-wimax
+ - ti,omap2420-h4
+ - const: ti,omap2420
+ - const: ti,omap2
+
+ - description: TI OMAP2430 SoC based platforms
+ items:
+ - enum:
+ - ti,omap2430-sdp # TI OMAP2430 SDP
+ - const: ti,omap2430
+ - const: ti,omap2
+
+ - description: TI OMAP3430 SoC based platforms
+ items:
+ - enum:
+ - compulab,omap3-cm-t3530
+ - logicpd,dm3730-som-lv-devkit # LogicPD Zoom OMAP35xx SOM-LV Development Kit
+ - logicpd,dm3730-torpedo-devkit # LogicPD Zoom OMAP35xx Torpedo Development Kit
+ - nokia,omap3-n900
+ - openpandora,omap3-pandora-600mhz
+ - ti,omap3430-sdp
+ - ti,omap3-beagle
+ - ti,omap3-evm # TI OMAP35XX EVM (TMDSEVM3530)
+ - ti,omap3-ldp # TI OMAP3430 LDP (Zoom1 Labrador)
+ - timll,omap3-devkit8000
+ - const: ti,omap3430
+ - const: ti,omap3
+
+ - description: Early BeagleBoard revisions A to B4 with a timer quirk
+ items:
+ - const: ti,omap3-beagle-ab4
+ - const: ti,omap3-beagle
+ - const: ti,omap3430
+ - const: ti,omap3
+
+ - description: Gumstix Overo TI OMAP 3430/3630 boards + expansion boards
+ items:
+ - enum:
+ - gumstix,omap3-overo-alto35
+ - gumstix,omap3-overo-chestnut43
+ - gumstix,omap3-overo-gallop43
+ - gumstix,omap3-overo-palo35
+ - gumstix,omap3-overo-palo43
+ - gumstix,omap3-overo-summit
+ - gumstix,omap3-overo-tobi
+ - gumstix,omap3-overo-tobiduo
+ - const: gumstix,omap3-overo
+ - enum:
+ - ti,omap3430
+ - ti,omap3630
+
+ - description: TI OMAP3630 SoC based platforms
+ items:
+ - enum:
+ - amazon,omap3-echo # Amazon Echo (first generation)
+ - compulab,omap3-cm-t3730
+ - goldelico,gta04
+ - lg,omap3-sniper # LG Optimus Black
+ - logicpd,dm3730-som-lv-devkit # LogicPD Zoom DM3730 SOM-LV Development Kit
+ - logicpd,dm3730-torpedo-devkit # LogicPD Zoom DM3730 Torpedo + Wireless Development Kit
+ - nokia,omap3-n9
+ - nokia,omap3-n950
+ - openpandora,omap3-pandora-1ghz
+ - ti,omap3-beagle-xm
+ - ti,omap3-evm-37xx # TI OMAP37XX EVM (TMDSEVM3730)
+ - ti,omap3-zoom3
+ - const: ti,omap3630
+ - const: ti,omap3
+
+ - description: TI AM35 SoC based platforms
+ items:
+ - enum:
+ - compulab,omap3-sbc-t3517 # CompuLab SBC-T3517 with CM-T3517
+ - teejet,mt_ventoux
+ - ti,am3517-craneboard # TI AM3517 CraneBoard (TMDSEVM3517)
+ - ti,am3517-evm # TI AM3517 EVM (AM3517/05 TMDSEVM3517)
+ - const: ti,am3517
+ - const: ti,omap3
+
+ - description: TI AM33 based platform
+ items:
+ - enum:
+ - compulab,cm-t335
+ - moxa,uc-8100-me-t
+ - novatech,am335x-lxm
+ - seeed,am335x-bone-green-eco
+ - ti,am335x-bone
+ - ti,am335x-evm
+ - ti,am3359-icev2
+ - const: ti,am33xx
+
+ - description: Compulab board variants based on TI AM33
+ items:
+ - enum:
+ - compulab,sbc-t335
+ - const: compulab,cm-t335
+ - const: ti,am33xx
+
+ - description: Phytec boards based on TI AM33
+ items:
+ - enum:
+ - phytec,am335x-wega
+ - phytec,am335x-pcm-953
+ - phytec,am335x-regor
+ - const: phytec,am335x-phycore-som
+ - const: ti,am33xx
+
+ - description: TQ-Systems TQMa335x[L] SoM
+ items:
+ - enum:
+ - tq,tqma3359-mba335x # MBa335x carrier board
+ - const: tq,tqma3359
+ - const: ti,am33xx
+
+ - description: TI OMAP4430 SoC based platforms
+ items:
+ - enum:
+ - amazon,omap4-kc1 # Amazon Kindle Fire (first generation)
+ - motorola,droid4 # Motorola Droid 4 XT894
+ - motorola,droid-bionic # Motorola Droid Bionic XT875
+ - motorola,xyboard-mz609
+ - motorola,xyboard-mz617
+ - ti,omap4-panda
+ - ti,omap4-sdp
+ - const: ti,omap4430
+ - const: ti,omap4
+
+ - description: OMAP4 PandaBoard Revision A4 and later
+ items:
+ - const: ti,omap4-panda-a4
+ - const: ti,omap4-panda
+ - const: ti,omap4430
+ - const: ti,omap4
+
+ - description: OMAP4 DuoVero with Parlor expansion board/daughter board
+ items:
+ - const: gumstix,omap4-duovero-parlor
+ - const: gumstix,omap4-duovero
+ - const: ti,omap4430
+ - const: ti,omap4
+
+ - description: TI OMAP4460 SoC based platforms
+ items:
+ - enum:
+ - epson,embt2ws # Epson Moverio BT-200
+ - ti,omap4-panda-es
+ - const: ti,omap4460
+ - const: ti,omap4
+
+ - description: VAR-OM44 boards
+ items:
+ - enum:
+ - variscite,var-dvk-om44
+ - variscite,var-stk-om44
+ - const: variscite,var-som-om44
+ - const: ti,omap4460
+ - const: ti,omap4
+
+ - description: TI OMAP5 SoC based platforms
+ items:
+ - enum:
+ - compulab,omap5-cm-t54
+ - isee,omap5-igep0050
+ - ti,omap5-uevm
+ - const: ti,omap5
+
+additionalProperties: true
+
+...
diff --git a/Documentation/devicetree/bindings/arm/ti/ti,keystone.yaml b/Documentation/devicetree/bindings/arm/ti/ti,keystone.yaml
new file mode 100644
index 000000000000..20d4084f4506
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/ti/ti,keystone.yaml
@@ -0,0 +1,42 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/ti/ti,keystone.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TI Keystone Platforms
+
+maintainers:
+ - Nishanth Menon <nm@ti.com>
+ - Santosh Shilimkar <ssantosh@kernel.org>
+
+properties:
+ compatible:
+ oneOf:
+ - description: K2G
+ items:
+ - enum:
+ - ti,k2g-evm
+ - ti,k2g-ice
+ - const: ti,k2g
+ - const: ti,keystone
+ - description: Keystone 2 Edison
+ items:
+ - enum:
+ - ti,k2e-evm
+ - const: ti,k2e
+ - const: ti,keystone
+ - description: Keystone 2 Lamarr
+ items:
+ - enum:
+ - ti,k2l-evm
+ - const: ti,k2l
+ - const: ti,keystone
+ - description: Keystone 2 Hawking/Kepler
+ items:
+ - enum:
+ - ti,k2hk-evm
+ - const: ti,k2hk
+ - const: ti,keystone
+
+additionalProperties: true
diff --git a/Documentation/devicetree/bindings/arm/vt8500.yaml b/Documentation/devicetree/bindings/arm/vt8500.yaml
index 5d5ad5a60451..fa47b8989bbf 100644
--- a/Documentation/devicetree/bindings/arm/vt8500.yaml
+++ b/Documentation/devicetree/bindings/arm/vt8500.yaml
@@ -7,14 +7,13 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: VIA/Wondermedia VT8500 Platforms
maintainers:
- - Tony Prisk <linux@prisktech.co.nz>
-description: test
+ - Alexey Charkov <alchark@gmail.com>
properties:
$nodename:
const: '/'
compatible:
- items:
+ oneOf:
- enum:
- via,vt8500
- wm,wm8505
@@ -22,4 +21,9 @@ properties:
- wm,wm8750
- wm,wm8850
+ - description: VIA APC Rock and Paper boards
+ items:
+ - const: via,apc-rock
+ - const: wm,wm8950
+
additionalProperties: true
diff --git a/Documentation/devicetree/bindings/arm/xen.txt b/Documentation/devicetree/bindings/arm/xen.txt
index 61d77acbeb5e..f925290d4641 100644
--- a/Documentation/devicetree/bindings/arm/xen.txt
+++ b/Documentation/devicetree/bindings/arm/xen.txt
@@ -56,7 +56,7 @@ hypervisor {
};
The format and meaning of the "xen,uefi-*" parameters are similar to those in
-Documentation/arm/uefi.rst, which are provided by the regular UEFI stub. However
+Documentation/arch/arm/uefi.rst, which are provided by the regular UEFI stub. However
they differ because they are provided by the Xen hypervisor, together with a set
of UEFI runtime services implemented via hypercalls, see
http://xenbits.xen.org/docs/unstable/hypercall/x86_64/include,public,platform.h.html.
diff --git a/Documentation/devicetree/bindings/arm/xilinx.yaml b/Documentation/devicetree/bindings/arm/xilinx.yaml
deleted file mode 100644
index 969cfe6dc434..000000000000
--- a/Documentation/devicetree/bindings/arm/xilinx.yaml
+++ /dev/null
@@ -1,137 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0
-%YAML 1.2
----
-$id: http://devicetree.org/schemas/arm/xilinx.yaml#
-$schema: http://devicetree.org/meta-schemas/core.yaml#
-
-title: Xilinx Zynq Platforms
-
-maintainers:
- - Michal Simek <michal.simek@xilinx.com>
-
-description: |
- Xilinx boards with Zynq-7000 SOC or Zynq UltraScale+ MPSoC
-
-properties:
- $nodename:
- const: '/'
- compatible:
- oneOf:
- - items:
- - enum:
- - adapteva,parallella
- - digilent,zynq-zybo
- - digilent,zynq-zybo-z7
- - ebang,ebaz4205
- - myir,zynq-zturn-v5
- - myir,zynq-zturn
- - xlnx,zynq-cc108
- - xlnx,zynq-zc702
- - xlnx,zynq-zc706
- - xlnx,zynq-zc770-xm010
- - xlnx,zynq-zc770-xm011
- - xlnx,zynq-zc770-xm012
- - xlnx,zynq-zc770-xm013
- - const: xlnx,zynq-7000
-
- - items:
- - const: avnet,zynq-microzed
- - const: xlnx,zynq-microzed
- - const: xlnx,zynq-7000
-
- - items:
- - const: avnet,zynq-zed
- - const: xlnx,zynq-zed
- - const: xlnx,zynq-7000
-
- - items:
- - enum:
- - xlnx,zynqmp-zc1751
- - const: xlnx,zynqmp
-
- - description: Xilinx internal board zc1232
- items:
- - const: xlnx,zynqmp-zc1232-revA
- - const: xlnx,zynqmp-zc1232
- - const: xlnx,zynqmp
-
- - description: Xilinx internal board zc1254
- items:
- - const: xlnx,zynqmp-zc1254-revA
- - const: xlnx,zynqmp-zc1254
- - const: xlnx,zynqmp
-
- - description: Xilinx internal board zc1275
- items:
- - const: xlnx,zynqmp-zc1275-revA
- - const: xlnx,zynqmp-zc1275
- - const: xlnx,zynqmp
-
- - description: Xilinx 96boards compatible board zcu100
- items:
- - const: xlnx,zynqmp-zcu100-revC
- - const: xlnx,zynqmp-zcu100
- - const: xlnx,zynqmp
-
- - description: Xilinx 96boards compatible board Ultra96
- items:
- - const: avnet,ultra96-rev1
- - const: avnet,ultra96
- - const: xlnx,zynqmp-zcu100-revC
- - const: xlnx,zynqmp-zcu100
- - const: xlnx,zynqmp
-
- - description: Xilinx evaluation board zcu102
- items:
- - enum:
- - xlnx,zynqmp-zcu102-revA
- - xlnx,zynqmp-zcu102-revB
- - xlnx,zynqmp-zcu102-rev1.0
- - xlnx,zynqmp-zcu102-rev1.1
- - const: xlnx,zynqmp-zcu102
- - const: xlnx,zynqmp
-
- - description: Xilinx evaluation board zcu104
- items:
- - enum:
- - xlnx,zynqmp-zcu104-revA
- - xlnx,zynqmp-zcu104-revC
- - xlnx,zynqmp-zcu104-rev1.0
- - const: xlnx,zynqmp-zcu104
- - const: xlnx,zynqmp
-
- - description: Xilinx evaluation board zcu106
- items:
- - enum:
- - xlnx,zynqmp-zcu106-revA
- - xlnx,zynqmp-zcu106-rev1.0
- - const: xlnx,zynqmp-zcu106
- - const: xlnx,zynqmp
-
- - description: Xilinx evaluation board zcu111
- items:
- - enum:
- - xlnx,zynqmp-zcu111-revA
- - xlnx,zynqmp-zcu111-rev1.0
- - const: xlnx,zynqmp-zcu111
- - const: xlnx,zynqmp
-
- - description: Xilinx Kria SOMs
- items:
- - const: xlnx,zynqmp-sm-k26-rev1
- - const: xlnx,zynqmp-sm-k26-revB
- - const: xlnx,zynqmp-sm-k26-revA
- - const: xlnx,zynqmp-sm-k26
- - const: xlnx,zynqmp
-
- - description: Xilinx Kria SOMs (starter)
- items:
- - const: xlnx,zynqmp-smk-k26-rev1
- - const: xlnx,zynqmp-smk-k26-revB
- - const: xlnx,zynqmp-smk-k26-revA
- - const: xlnx,zynqmp-smk-k26
- - const: xlnx,zynqmp
-
-additionalProperties: true
-
-...
diff --git a/Documentation/devicetree/bindings/ata/ahci-common.yaml b/Documentation/devicetree/bindings/ata/ahci-common.yaml
index 7fdf40954a4c..38770c4c85fd 100644
--- a/Documentation/devicetree/bindings/ata/ahci-common.yaml
+++ b/Documentation/devicetree/bindings/ata/ahci-common.yaml
@@ -8,7 +8,7 @@ title: Common Properties for Serial ATA AHCI controllers
maintainers:
- Hans de Goede <hdegoede@redhat.com>
- - Damien Le Moal <damien.lemoal@opensource.wdc.com>
+ - Damien Le Moal <dlemoal@kernel.org>
description:
This document defines device tree properties for a common AHCI SATA
diff --git a/Documentation/devicetree/bindings/ata/ahci-da850.txt b/Documentation/devicetree/bindings/ata/ahci-da850.txt
deleted file mode 100644
index 5f8193417725..000000000000
--- a/Documentation/devicetree/bindings/ata/ahci-da850.txt
+++ /dev/null
@@ -1,18 +0,0 @@
-Device tree binding for the TI DA850 AHCI SATA Controller
----------------------------------------------------------
-
-Required properties:
- - compatible: must be "ti,da850-ahci"
- - reg: physical base addresses and sizes of the two register regions
- used by the controller: the register map as defined by the
- AHCI 1.1 standard and the Power Down Control Register (PWRDN)
- for enabling/disabling the SATA clock receiver
- - interrupts: interrupt specifier (refer to the interrupt binding)
-
-Example:
-
- sata: sata@218000 {
- compatible = "ti,da850-ahci";
- reg = <0x218000 0x2000>, <0x22c018 0x4>;
- interrupts = <67>;
- };
diff --git a/Documentation/devicetree/bindings/ata/ahci-dm816.txt b/Documentation/devicetree/bindings/ata/ahci-dm816.txt
deleted file mode 100644
index f8c535f3541f..000000000000
--- a/Documentation/devicetree/bindings/ata/ahci-dm816.txt
+++ /dev/null
@@ -1,21 +0,0 @@
-Device tree binding for the TI DM816 AHCI SATA Controller
----------------------------------------------------------
-
-Required properties:
- - compatible: must be "ti,dm816-ahci"
- - reg: physical base address and size of the register region used by
- the controller (as defined by the AHCI 1.1 standard)
- - interrupts: interrupt specifier (refer to the interrupt binding)
- - clocks: list of phandle and clock specifier pairs (or only
- phandles for clock providers with '0' defined for
- #clock-cells); two clocks must be specified: the functional
- clock and an external reference clock
-
-Example:
-
- sata: sata@4a140000 {
- compatible = "ti,dm816-ahci";
- reg = <0x4a140000 0x10000>;
- interrupts = <16>;
- clocks = <&sysclk5_ck>, <&sata_refclk>;
- };
diff --git a/Documentation/devicetree/bindings/ata/ahci-fsl-qoriq.txt b/Documentation/devicetree/bindings/ata/ahci-fsl-qoriq.txt
deleted file mode 100644
index 7c3ca0e13de0..000000000000
--- a/Documentation/devicetree/bindings/ata/ahci-fsl-qoriq.txt
+++ /dev/null
@@ -1,21 +0,0 @@
-Binding for Freescale QorIQ AHCI SATA Controller
-
-Required properties:
- - reg: Physical base address and size of the controller's register area.
- - compatible: Compatibility string. Must be 'fsl,<chip>-ahci', where
- chip could be ls1021a, ls1043a, ls1046a, ls1088a, ls2080a etc.
- - clocks: Input clock specifier. Refer to common clock bindings.
- - interrupts: Interrupt specifier. Refer to interrupt binding.
-
-Optional properties:
- - dma-coherent: Enable AHCI coherent DMA operation.
- - reg-names: register area names when there are more than 1 register area.
-
-Examples:
- sata@3200000 {
- compatible = "fsl,ls1021a-ahci";
- reg = <0x0 0x3200000 0x0 0x10000>;
- interrupts = <GIC_SPI 101 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&platform_clk 1>;
- dma-coherent;
- };
diff --git a/Documentation/devicetree/bindings/ata/ahci-mtk.txt b/Documentation/devicetree/bindings/ata/ahci-mtk.txt
deleted file mode 100644
index d2aa696b161b..000000000000
--- a/Documentation/devicetree/bindings/ata/ahci-mtk.txt
+++ /dev/null
@@ -1,51 +0,0 @@
-MediaTek Serial ATA controller
-
-Required properties:
- - compatible : Must be "mediatek,<chip>-ahci", "mediatek,mtk-ahci".
- When using "mediatek,mtk-ahci" compatible strings, you
- need SoC specific ones in addition, one of:
- - "mediatek,mt7622-ahci"
- - reg : Physical base addresses and length of register sets.
- - interrupts : Interrupt associated with the SATA device.
- - interrupt-names : Associated name must be: "hostc".
- - clocks : A list of phandle and clock specifier pairs, one for each
- entry in clock-names.
- - clock-names : Associated names must be: "ahb", "axi", "asic", "rbc", "pm".
- - phys : A phandle and PHY specifier pair for the PHY port.
- - phy-names : Associated name must be: "sata-phy".
- - ports-implemented : See ./ahci-platform.txt for details.
-
-Optional properties:
- - power-domains : A phandle and power domain specifier pair to the power
- domain which is responsible for collapsing and restoring
- power to the peripheral.
- - resets : Must contain an entry for each entry in reset-names.
- See ../reset/reset.txt for details.
- - reset-names : Associated names must be: "axi", "sw", "reg".
- - mediatek,phy-mode : A phandle to the system controller, used to enable
- SATA function.
-
-Example:
-
- sata: sata@1a200000 {
- compatible = "mediatek,mt7622-ahci",
- "mediatek,mtk-ahci";
- reg = <0 0x1a200000 0 0x1100>;
- interrupts = <GIC_SPI 233 IRQ_TYPE_LEVEL_HIGH>;
- interrupt-names = "hostc";
- clocks = <&pciesys CLK_SATA_AHB_EN>,
- <&pciesys CLK_SATA_AXI_EN>,
- <&pciesys CLK_SATA_ASIC_EN>,
- <&pciesys CLK_SATA_RBC_EN>,
- <&pciesys CLK_SATA_PM_EN>;
- clock-names = "ahb", "axi", "asic", "rbc", "pm";
- phys = <&u3port1 PHY_TYPE_SATA>;
- phy-names = "sata-phy";
- ports-implemented = <0x1>;
- power-domains = <&scpsys MT7622_POWER_DOMAIN_HIF0>;
- resets = <&pciesys MT7622_SATA_AXI_BUS_RST>,
- <&pciesys MT7622_SATA_PHY_SW_RST>,
- <&pciesys MT7622_SATA_PHY_REG_RST>;
- reset-names = "axi", "sw", "reg";
- mediatek,phy-mode = <&pciesys>;
- };
diff --git a/Documentation/devicetree/bindings/ata/ahci-platform.yaml b/Documentation/devicetree/bindings/ata/ahci-platform.yaml
index 358617115bb8..cc35cdc02840 100644
--- a/Documentation/devicetree/bindings/ata/ahci-platform.yaml
+++ b/Documentation/devicetree/bindings/ata/ahci-platform.yaml
@@ -30,6 +30,8 @@ select:
- marvell,armada-3700-ahci
- marvell,armada-8k-ahci
- marvell,berlin2q-ahci
+ - qcom,apq8064-ahci
+ - qcom,ipq806x-ahci
- socionext,uniphier-pro4-ahci
- socionext,uniphier-pxs2-ahci
- socionext,uniphier-pxs3-ahci
@@ -45,6 +47,8 @@ properties:
- marvell,armada-8k-ahci
- marvell,berlin2-ahci
- marvell,berlin2q-ahci
+ - qcom,apq8064-ahci
+ - qcom,ipq806x-ahci
- socionext,uniphier-pro4-ahci
- socionext,uniphier-pxs2-ahci
- socionext,uniphier-pxs3-ahci
@@ -64,11 +68,11 @@ properties:
clocks:
minItems: 1
- maxItems: 3
+ maxItems: 5
clock-names:
minItems: 1
- maxItems: 3
+ maxItems: 5
interrupts:
maxItems: 1
@@ -80,6 +84,9 @@ properties:
minItems: 1
maxItems: 3
+ iommus:
+ maxItems: 1
+
patternProperties:
"^sata-port@[0-9a-f]+$":
$ref: /schemas/ata/ahci-common.yaml#/$defs/ahci-port
@@ -97,6 +104,31 @@ required:
allOf:
- $ref: ahci-common.yaml#
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,apq8064-ahci
+ - qcom,ipq806x-ahci
+ then:
+ properties:
+ clocks:
+ minItems: 5
+ clock-names:
+ items:
+ - const: slave_iface
+ - const: iface
+ - const: core
+ - const: rxoob
+ - const: pmalive
+ required:
+ - phys
+ - phy-names
+ - clocks
+ - clock-names
+
- if:
properties:
compatible:
diff --git a/Documentation/devicetree/bindings/ata/ahci-st.txt b/Documentation/devicetree/bindings/ata/ahci-st.txt
deleted file mode 100644
index 909c9935360d..000000000000
--- a/Documentation/devicetree/bindings/ata/ahci-st.txt
+++ /dev/null
@@ -1,35 +0,0 @@
-STMicroelectronics STi SATA controller
-
-This binding describes a SATA device.
-
-Required properties:
- - compatible : Must be "st,ahci"
- - reg : Physical base addresses and length of register sets
- - interrupts : Interrupt associated with the SATA device
- - interrupt-names : Associated name must be; "hostc"
- - clocks : The phandle for the clock
- - clock-names : Associated name must be; "ahci_clk"
- - phys : The phandle for the PHY port
- - phy-names : Associated name must be; "ahci_phy"
-
-Optional properties:
- - resets : The power-down, soft-reset and power-reset lines of SATA IP
- - reset-names : Associated names must be; "pwr-dwn", "sw-rst" and "pwr-rst"
-
-Example:
-
- /* Example for stih407 family silicon */
- sata0: sata@9b20000 {
- compatible = "st,ahci";
- reg = <0x9b20000 0x1000>;
- interrupts = <GIC_SPI 159 IRQ_TYPE_NONE>;
- interrupt-names = "hostc";
- phys = <&phy_port0 PHY_TYPE_SATA>;
- phy-names = "ahci_phy";
- resets = <&powerdown STIH407_SATA0_POWERDOWN>,
- <&softreset STIH407_SATA0_SOFTRESET>,
- <&softreset STIH407_SATA0_PWR_SOFTRESET>;
- reset-names = "pwr-dwn", "sw-rst", "pwr-rst";
- clocks = <&clk_s_c0_flexgen CLK_ICN_REG>;
- clock-names = "ahci_clk";
- };
diff --git a/Documentation/devicetree/bindings/ata/apm,xgene-ahci.yaml b/Documentation/devicetree/bindings/ata/apm,xgene-ahci.yaml
new file mode 100644
index 000000000000..dc631381f9e1
--- /dev/null
+++ b/Documentation/devicetree/bindings/ata/apm,xgene-ahci.yaml
@@ -0,0 +1,65 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/ata/apm,xgene-ahci.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: APM X-Gene 6.0 Gb/s SATA host controller
+
+maintainers:
+ - Rob Herring <robh@kernel.org>
+
+properties:
+ compatible:
+ enum:
+ - apm,xgene-ahci
+ - apm,xgene-ahci-v2
+
+ reg:
+ minItems: 4
+ items:
+ - description: AHCI memory resource
+ - description: Host controller core
+ - description: Host controller diagnostic
+ - description: Host controller AXI
+ - description: Host controller MUX
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+required:
+ - compatible
+
+unevaluatedProperties: false
+
+allOf:
+ - $ref: ahci-common.yaml#
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: apm,xgene-ahci
+ then:
+ required:
+ - clocks
+ - phys
+ - phy-names
+
+examples:
+ - |
+ sata@1a400000 {
+ compatible = "apm,xgene-ahci";
+ reg = <0x1a400000 0x1000>,
+ <0x1f220000 0x1000>,
+ <0x1f22d000 0x1000>,
+ <0x1f22e000 0x1000>,
+ <0x1f227000 0x1000>;
+ clocks = <&sataclk 0>;
+ dma-coherent;
+ interrupts = <0x0 0x87 0x4>;
+ phys = <&phy2 0>;
+ phy-names = "sata-phy";
+ };
diff --git a/Documentation/devicetree/bindings/ata/apm-xgene.txt b/Documentation/devicetree/bindings/ata/apm-xgene.txt
deleted file mode 100644
index 02e690a675db..000000000000
--- a/Documentation/devicetree/bindings/ata/apm-xgene.txt
+++ /dev/null
@@ -1,77 +0,0 @@
-* APM X-Gene 6.0 Gb/s SATA host controller nodes
-
-SATA host controller nodes are defined to describe on-chip Serial ATA
-controllers. Each SATA controller (pair of ports) have its own node.
-
-Required properties:
-- compatible : Shall contain:
- * "apm,xgene-ahci"
-- reg : First memory resource shall be the AHCI memory
- resource.
- Second memory resource shall be the host controller
- core memory resource.
- Third memory resource shall be the host controller
- diagnostic memory resource.
- 4th memory resource shall be the host controller
- AXI memory resource.
- 5th optional memory resource shall be the host
- controller MUX memory resource if required.
-- interrupts : Interrupt-specifier for SATA host controller IRQ.
-- clocks : Reference to the clock entry.
-- phys : A list of phandles + phy-specifiers, one for each
- entry in phy-names.
-- phy-names : Should contain:
- * "sata-phy" for the SATA 6.0Gbps PHY
-
-Optional properties:
-- dma-coherent : Present if dma operations are coherent
-- status : Shall be "ok" if enabled or "disabled" if disabled.
- Default is "ok".
-
-Example:
- sataclk: sataclk {
- compatible = "fixed-clock";
- #clock-cells = <1>;
- clock-frequency = <100000000>;
- clock-output-names = "sataclk";
- };
-
- phy2: phy@1f22a000 {
- compatible = "apm,xgene-phy";
- reg = <0x0 0x1f22a000 0x0 0x100>;
- #phy-cells = <1>;
- };
-
- phy3: phy@1f23a000 {
- compatible = "apm,xgene-phy";
- reg = <0x0 0x1f23a000 0x0 0x100>;
- #phy-cells = <1>;
- };
-
- sata2: sata@1a400000 {
- compatible = "apm,xgene-ahci";
- reg = <0x0 0x1a400000 0x0 0x1000>,
- <0x0 0x1f220000 0x0 0x1000>,
- <0x0 0x1f22d000 0x0 0x1000>,
- <0x0 0x1f22e000 0x0 0x1000>,
- <0x0 0x1f227000 0x0 0x1000>;
- interrupts = <0x0 0x87 0x4>;
- dma-coherent;
- clocks = <&sataclk 0>;
- phys = <&phy2 0>;
- phy-names = "sata-phy";
- };
-
- sata3: sata@1a800000 {
- compatible = "apm,xgene-ahci-pcie";
- reg = <0x0 0x1a800000 0x0 0x1000>,
- <0x0 0x1f230000 0x0 0x1000>,
- <0x0 0x1f23d000 0x0 0x1000>,
- <0x0 0x1f23e000 0x0 0x1000>,
- <0x0 0x1f237000 0x0 0x1000>;
- interrupts = <0x0 0x88 0x4>;
- dma-coherent;
- clocks = <&sataclk 0>;
- phys = <&phy3 0>;
- phy-names = "sata-phy";
- };
diff --git a/Documentation/devicetree/bindings/ata/arasan,cf-spear1340.yaml b/Documentation/devicetree/bindings/ata/arasan,cf-spear1340.yaml
new file mode 100644
index 000000000000..4d7017452dda
--- /dev/null
+++ b/Documentation/devicetree/bindings/ata/arasan,cf-spear1340.yaml
@@ -0,0 +1,70 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/ata/arasan,cf-spear1340.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Arasan PATA Compact Flash Controller
+
+maintainers:
+ - Viresh Kumar <viresh.kumar@linaro.org>
+
+properties:
+ compatible:
+ const: arasan,cf-spear1340
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ arasan,broken-udma:
+ description: UDMA mode is unusable
+ type: boolean
+
+ arasan,broken-mwdma:
+ description: MWDMA mode is unusable
+ type: boolean
+
+ arasan,broken-pio:
+ description: PIO mode is unusable
+ type: boolean
+
+ dmas:
+ maxItems: 1
+
+ dma-names:
+ items:
+ - const: data
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+additionalProperties: false
+
+allOf:
+ - if:
+ not:
+ required:
+ - arasan,broken-udma
+ - arasan,broken-mwdma
+ then:
+ required:
+ - dmas
+ - dma-names
+
+examples:
+ - |
+ cf@fc000000 {
+ compatible = "arasan,cf-spear1340";
+ reg = <0xfc000000 0x1000>;
+ interrupts = <12>;
+ dmas = <&dma 23>;
+ dma-names = "data";
+ };
diff --git a/Documentation/devicetree/bindings/ata/atmel-at91_cf.txt b/Documentation/devicetree/bindings/ata/atmel-at91_cf.txt
deleted file mode 100644
index c1d22b3ae134..000000000000
--- a/Documentation/devicetree/bindings/ata/atmel-at91_cf.txt
+++ /dev/null
@@ -1,19 +0,0 @@
-Atmel AT91RM9200 CompactFlash
-
-Required properties:
-- compatible : "atmel,at91rm9200-cf".
-- reg : should specify localbus address and size used.
-- gpios : specifies the gpio pins to control the CF device. Detect
- and reset gpio's are mandatory while irq and vcc gpio's are
- optional and may be set to 0 if not present.
-
-Example:
-compact-flash@50000000 {
- compatible = "atmel,at91rm9200-cf";
- reg = <0x50000000 0x30000000>;
- gpios = <&pioC 13 0 /* irq */
- &pioC 15 0 /* detect */
- 0 /* vcc */
- &pioC 5 0 /* reset */
- >;
-};
diff --git a/Documentation/devicetree/bindings/ata/cavium,ebt3000-compact-flash.yaml b/Documentation/devicetree/bindings/ata/cavium,ebt3000-compact-flash.yaml
new file mode 100644
index 000000000000..349f289b81e6
--- /dev/null
+++ b/Documentation/devicetree/bindings/ata/cavium,ebt3000-compact-flash.yaml
@@ -0,0 +1,59 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/ata/cavium,ebt3000-compact-flash.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cavium Compact Flash
+
+maintainers:
+ - Rob Herring <robh@kernel.org>
+
+description:
+ The Cavium Compact Flash device is connected to the Octeon Boot Bus, and is
+ thus a child of the Boot Bus device. It can read and write industry standard
+ compact flash devices.
+
+properties:
+ compatible:
+ const: cavium,ebt3000-compact-flash
+
+ reg:
+ description: The base address of the CF chip select banks.
+ items:
+ - description: CF chip select bank 0
+ - description: CF chip select bank 1
+
+ cavium,bus-width:
+ description: The width of the connection to the CF devices.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [8, 16]
+
+ cavium,true-ide:
+ description: True IDE mode when present.
+ type: boolean
+
+ cavium,dma-engine-handle:
+ description: A phandle for the DMA Engine connected to this device.
+ $ref: /schemas/types.yaml#/definitions/phandle
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ bus {
+ #address-cells = <2>;
+ #size-cells = <1>;
+
+ compact-flash@5,0 {
+ compatible = "cavium,ebt3000-compact-flash";
+ reg = <5 0 0x10000>, <6 0 0x10000>;
+ cavium,bus-width = <16>;
+ cavium,true-ide;
+ cavium,dma-engine-handle = <&dma0>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/ata/cavium-compact-flash.txt b/Documentation/devicetree/bindings/ata/cavium-compact-flash.txt
deleted file mode 100644
index 3bacc8e0931e..000000000000
--- a/Documentation/devicetree/bindings/ata/cavium-compact-flash.txt
+++ /dev/null
@@ -1,30 +0,0 @@
-* Compact Flash
-
-The Cavium Compact Flash device is connected to the Octeon Boot Bus,
-and is thus a child of the Boot Bus device. It can read and write
-industry standard compact flash devices.
-
-Properties:
-- compatible: "cavium,ebt3000-compact-flash";
-
- Compatibility with many Cavium evaluation boards.
-
-- reg: The base address of the CF chip select banks. Depending on
- the device configuration, there may be one or two banks.
-
-- cavium,bus-width: The width of the connection to the CF devices. Valid
- values are 8 and 16.
-
-- cavium,true-ide: Optional, if present the CF connection is in True IDE mode.
-
-- cavium,dma-engine-handle: Optional, a phandle for the DMA Engine connected
- to this device.
-
-Example:
- compact-flash@5,0 {
- compatible = "cavium,ebt3000-compact-flash";
- reg = <5 0 0x10000>, <6 0 0x10000>;
- cavium,bus-width = <16>;
- cavium,true-ide;
- cavium,dma-engine-handle = <&dma0>;
- };
diff --git a/Documentation/devicetree/bindings/ata/ceva,ahci-1v84.yaml b/Documentation/devicetree/bindings/ata/ceva,ahci-1v84.yaml
index 9b31f864e071..c92341888a28 100644
--- a/Documentation/devicetree/bindings/ata/ceva,ahci-1v84.yaml
+++ b/Documentation/devicetree/bindings/ata/ceva,ahci-1v84.yaml
@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Ceva AHCI SATA Controller
maintainers:
- - Piyush Mehta <piyush.mehta@xilinx.com>
+ - Radhey Shyam Pandey <radhey.shyam.pandey@amd.com>
description: |
The Ceva SATA controller mostly conforms to the AHCI interface with some
@@ -32,7 +32,7 @@ properties:
maxItems: 1
iommus:
- maxItems: 1
+ maxItems: 4
power-domains:
maxItems: 1
@@ -162,11 +162,9 @@ additionalProperties: false
examples:
- |
- #include <dt-bindings/clock/xlnx-zynqmp-clk.h>
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/power/xlnx-zynqmp-power.h>
#include <dt-bindings/reset/xlnx-zynqmp-resets.h>
- #include <dt-bindings/clock/xlnx-zynqmp-clk.h>
#include <dt-bindings/phy/phy.h>
sata: ahci@fd0c0000 {
@@ -174,7 +172,7 @@ examples:
reg = <0xfd0c0000 0x200>;
interrupt-parent = <&gic>;
interrupts = <0 133 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&zynqmp_clk SATA_REF>;
+ clocks = <&zynqmp_clk 22>;
ceva,p0-cominit-params = /bits/ 8 <0x0F 0x25 0x18 0x29>;
ceva,p0-comwake-params = /bits/ 8 <0x04 0x0B 0x08 0x0F>;
ceva,p0-burst-params = /bits/ 8 <0x0A 0x08 0x4A 0x06>;
diff --git a/Documentation/devicetree/bindings/ata/cirrus,ep9312-pata.yaml b/Documentation/devicetree/bindings/ata/cirrus,ep9312-pata.yaml
new file mode 100644
index 000000000000..8130923fdc72
--- /dev/null
+++ b/Documentation/devicetree/bindings/ata/cirrus,ep9312-pata.yaml
@@ -0,0 +1,42 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/ata/cirrus,ep9312-pata.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cirrus Logic EP9312 PATA controller
+
+maintainers:
+ - Damien Le Moal <dlemoal@kernel.org>
+
+properties:
+ compatible:
+ oneOf:
+ - const: cirrus,ep9312-pata
+ - items:
+ - const: cirrus,ep9315-pata
+ - const: cirrus,ep9312-pata
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+additionalProperties: false
+
+examples:
+ - |
+ ide@800a0000 {
+ compatible = "cirrus,ep9312-pata";
+ reg = <0x800a0000 0x38>;
+ interrupt-parent = <&vic1>;
+ interrupts = <8>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&ide_default_pins>;
+ };
diff --git a/Documentation/devicetree/bindings/ata/eswin,eic7700-ahci.yaml b/Documentation/devicetree/bindings/ata/eswin,eic7700-ahci.yaml
new file mode 100644
index 000000000000..6554e30018b3
--- /dev/null
+++ b/Documentation/devicetree/bindings/ata/eswin,eic7700-ahci.yaml
@@ -0,0 +1,79 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/ata/eswin,eic7700-ahci.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Eswin EIC7700 SoC SATA Controller
+
+maintainers:
+ - Yulin Lu <luyulin@eswincomputing.com>
+ - Huan He <hehuan1@eswincomputing.com>
+
+description:
+ AHCI SATA controller embedded into the EIC7700 SoC is based on the DWC AHCI
+ SATA v5.00a IP core.
+
+select:
+ properties:
+ compatible:
+ const: eswin,eic7700-ahci
+ required:
+ - compatible
+
+allOf:
+ - $ref: snps,dwc-ahci-common.yaml#
+
+properties:
+ compatible:
+ items:
+ - const: eswin,eic7700-ahci
+ - const: snps,dwc-ahci
+
+ clocks:
+ minItems: 2
+ maxItems: 2
+
+ clock-names:
+ items:
+ - const: pclk
+ - const: aclk
+
+ resets:
+ maxItems: 1
+
+ reset-names:
+ const: arst
+
+ ports-implemented:
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - resets
+ - reset-names
+ - phys
+ - phy-names
+ - ports-implemented
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ sata@50420000 {
+ compatible = "eswin,eic7700-ahci", "snps,dwc-ahci";
+ reg = <0x50420000 0x10000>;
+ interrupt-parent = <&plic>;
+ interrupts = <58>;
+ clocks = <&clock 171>, <&clock 186>;
+ clock-names = "pclk", "aclk";
+ phys = <&sata_phy>;
+ phy-names = "sata-phy";
+ ports-implemented = <0x1>;
+ resets = <&reset 96>;
+ reset-names = "arst";
+ };
diff --git a/Documentation/devicetree/bindings/ata/fsl,ahci.yaml b/Documentation/devicetree/bindings/ata/fsl,ahci.yaml
new file mode 100644
index 000000000000..ea4428bc1742
--- /dev/null
+++ b/Documentation/devicetree/bindings/ata/fsl,ahci.yaml
@@ -0,0 +1,64 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/ata/fsl,ahci.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale QorIQ AHCI SATA Controller
+
+maintainers:
+ - Frank Li <Frank.Li@nxp.com>
+
+properties:
+ compatible:
+ oneOf:
+ - description: SATA controller for ls1012a
+ items:
+ - const: fsl,ls1012a-ahci
+ - const: fsl,ls1043a-ahci
+ - enum:
+ - fsl,ls1021a-ahci
+ - fsl,ls1028a-ahci
+ - fsl,ls1043a-ahci
+ - fsl,ls1046a-ahci
+ - fsl,ls1088a-ahci
+ - fsl,ls2080a-ahci
+ - fsl,lx2160a-ahci
+
+ reg:
+ minItems: 1
+ maxItems: 2
+
+ reg-names:
+ items:
+ - const: ahci
+ - const: sata-ecc
+ minItems: 1
+
+ clocks:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ dma-coherent: true
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - interrupts
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ sata@3200000 {
+ compatible = "fsl,ls1021a-ahci";
+ reg = <0x3200000 0x10000>;
+ interrupts = <GIC_SPI 101 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&platform_clk 1>;
+ dma-coherent;
+ };
diff --git a/Documentation/devicetree/bindings/ata/fsl,imx-pata.yaml b/Documentation/devicetree/bindings/ata/fsl,imx-pata.yaml
new file mode 100644
index 000000000000..324e2413bba8
--- /dev/null
+++ b/Documentation/devicetree/bindings/ata/fsl,imx-pata.yaml
@@ -0,0 +1,42 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/ata/fsl,imx-pata.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX PATA Controller
+
+maintainers:
+ - Animesh Agarwal <animeshagarwal28@gmail.com>
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - fsl,imx31-pata
+ - fsl,imx51-pata
+ - const: fsl,imx27-pata
+ - const: fsl,imx27-pata
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ items:
+ - description: PATA Controller interrupts
+
+ clocks:
+ items:
+ - description: PATA Controller clocks
+
+additionalProperties: false
+
+examples:
+ - |
+ pata: pata@83fe0000 {
+ compatible = "fsl,imx51-pata", "fsl,imx27-pata";
+ reg = <0x83fe0000 0x4000>;
+ interrupts = <70>;
+ clocks = <&clks 161>;
+ };
diff --git a/Documentation/devicetree/bindings/ata/fsl,pq-sata.yaml b/Documentation/devicetree/bindings/ata/fsl,pq-sata.yaml
new file mode 100644
index 000000000000..1d19ee832f0c
--- /dev/null
+++ b/Documentation/devicetree/bindings/ata/fsl,pq-sata.yaml
@@ -0,0 +1,60 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/ata/fsl,pq-sata.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale 8xxx/3.0 Gb/s SATA nodes
+
+maintainers:
+ - J. Neuschäfer <j.ne@posteo.net>
+
+description:
+ SATA nodes are defined to describe on-chip Serial ATA controllers.
+ Each SATA controller should have its own node.
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - fsl,mpc8377-sata
+ - fsl,mpc8536-sata
+ - fsl,mpc8315-sata
+ - fsl,mpc8379-sata
+ - const: fsl,pq-sata
+ - const: fsl,pq-sata-v2
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ cell-index:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [1, 2, 3, 4]
+ description: |
+ 1 for controller @ 0x18000
+ 2 for controller @ 0x19000
+ 3 for controller @ 0x1a000
+ 4 for controller @ 0x1b000
+
+required:
+ - compatible
+ - interrupts
+ - cell-index
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ sata@18000 {
+ compatible = "fsl,mpc8379-sata", "fsl,pq-sata";
+ reg = <0x18000 0x1000>;
+ cell-index = <1>;
+ interrupts = <44 IRQ_TYPE_LEVEL_LOW>;
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/ata/fsl-sata.txt b/Documentation/devicetree/bindings/ata/fsl-sata.txt
deleted file mode 100644
index fd63bb3becc9..000000000000
--- a/Documentation/devicetree/bindings/ata/fsl-sata.txt
+++ /dev/null
@@ -1,28 +0,0 @@
-* Freescale 8xxx/3.0 Gb/s SATA nodes
-
-SATA nodes are defined to describe on-chip Serial ATA controllers.
-Each SATA port should have its own node.
-
-Required properties:
-- compatible : compatible list, contains 2 entries, first is
- "fsl,CHIP-sata", where CHIP is the processor
- (mpc8315, mpc8379, etc.) and the second is
- "fsl,pq-sata"
-- interrupts : <interrupt mapping for SATA IRQ>
-- cell-index : controller index.
- 1 for controller @ 0x18000
- 2 for controller @ 0x19000
- 3 for controller @ 0x1a000
- 4 for controller @ 0x1b000
-
-Optional properties:
-- reg : <registers mapping>
-
-Example:
- sata@18000 {
- compatible = "fsl,mpc8379-sata", "fsl,pq-sata";
- reg = <0x18000 0x1000>;
- cell-index = <1>;
- interrupts = <2c 8>;
- interrupt-parent = < &ipic >;
- };
diff --git a/Documentation/devicetree/bindings/ata/imx-pata.txt b/Documentation/devicetree/bindings/ata/imx-pata.txt
deleted file mode 100644
index f1172f00188a..000000000000
--- a/Documentation/devicetree/bindings/ata/imx-pata.txt
+++ /dev/null
@@ -1,16 +0,0 @@
-* Freescale i.MX PATA Controller
-
-Required properties:
-- compatible: "fsl,imx27-pata"
-- reg: Address range of the PATA Controller
-- interrupts: The interrupt of the PATA Controller
-- clocks: the clocks for the PATA Controller
-
-Example:
-
- pata: pata@83fe0000 {
- compatible = "fsl,imx51-pata", "fsl,imx27-pata";
- reg = <0x83fe0000 0x4000>;
- interrupts = <70>;
- clocks = <&clks 161>;
- };
diff --git a/Documentation/devicetree/bindings/ata/imx-sata.yaml b/Documentation/devicetree/bindings/ata/imx-sata.yaml
index 68ffb97ddc9b..31c43374763a 100644
--- a/Documentation/devicetree/bindings/ata/imx-sata.yaml
+++ b/Documentation/devicetree/bindings/ata/imx-sata.yaml
@@ -19,6 +19,7 @@ properties:
- fsl,imx53-ahci
- fsl,imx6q-ahci
- fsl,imx6qp-ahci
+ - fsl,imx8qm-ahci
reg:
maxItems: 1
@@ -27,12 +28,14 @@ properties:
maxItems: 1
clocks:
+ minItems: 2
items:
- description: sata clock
- description: sata reference clock
- description: ahb clock
clock-names:
+ minItems: 2
items:
- const: sata
- const: sata_ref
@@ -58,6 +61,28 @@ properties:
$ref: /schemas/types.yaml#/definitions/flag
description: if present, disable spread-spectrum clocking on the SATA link.
+ phys:
+ items:
+ - description: phandle to SATA PHY.
+ Since "REXT" pin is only present for first lane of i.MX8QM PHY, it's
+ calibration result will be stored, passed through second lane, and
+ shared with all three lanes PHY. The first two lanes PHY are used as
+ calibration PHYs, although only the third lane PHY is used by SATA.
+ - description: phandle to the first lane PHY of i.MX8QM.
+ - description: phandle to the second lane PHY of i.MX8QM.
+
+ phy-names:
+ items:
+ - const: sata-phy
+ - const: cali-phy0
+ - const: cali-phy1
+
+ power-domains:
+ maxItems: 1
+
+ target-supply:
+ description: Power regulator for the SATA target device.
+
required:
- compatible
- reg
@@ -65,6 +90,31 @@ required:
- clocks
- clock-names
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - fsl,imx53-ahci
+ - fsl,imx6q-ahci
+ - fsl,imx6qp-ahci
+ then:
+ properties:
+ clock-names:
+ minItems: 3
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - fsl,imx8qm-ahci
+ then:
+ properties:
+ clock-names:
+ minItems: 2
+
additionalProperties: false
examples:
diff --git a/Documentation/devicetree/bindings/ata/marvell,orion-sata.yaml b/Documentation/devicetree/bindings/ata/marvell,orion-sata.yaml
new file mode 100644
index 000000000000..f656ea9223d6
--- /dev/null
+++ b/Documentation/devicetree/bindings/ata/marvell,orion-sata.yaml
@@ -0,0 +1,83 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/ata/marvell,orion-sata.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Marvell Orion SATA
+
+maintainers:
+ - Andrew Lunn <andrew@lunn.ch>
+ - Gregory Clement <gregory.clement@bootlin.com>
+
+allOf:
+ - $ref: sata-common.yaml#
+
+properties:
+ compatible:
+ enum:
+ - marvell,orion-sata
+ - marvell,armada-370-sata
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ minItems: 1
+ maxItems: 8
+
+ clock-names:
+ minItems: 1
+ items:
+ - const: '0'
+ - const: '1'
+ - const: '2'
+ - const: '3'
+ - const: '4'
+ - const: '5'
+ - const: '6'
+ - const: '7'
+
+ interrupts:
+ maxItems: 1
+
+ nr-ports:
+ description:
+ Number of SATA ports in use.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ maximum: 8
+
+ phys:
+ minItems: 1
+ maxItems: 8
+
+ phy-names:
+ minItems: 1
+ items:
+ - const: port0
+ - const: port1
+ - const: port2
+ - const: port3
+ - const: port4
+ - const: port5
+ - const: port6
+ - const: port7
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - nr-ports
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ sata@80000 {
+ compatible = "marvell,orion-sata";
+ reg = <0x80000 0x5000>;
+ interrupts = <21>;
+ phys = <&sata_phy0>, <&sata_phy1>;
+ phy-names = "port0", "port1";
+ nr-ports = <2>;
+ };
diff --git a/Documentation/devicetree/bindings/ata/marvell.txt b/Documentation/devicetree/bindings/ata/marvell.txt
deleted file mode 100644
index b460edd12766..000000000000
--- a/Documentation/devicetree/bindings/ata/marvell.txt
+++ /dev/null
@@ -1,22 +0,0 @@
-* Marvell Orion SATA
-
-Required Properties:
-- compatibility : "marvell,orion-sata" or "marvell,armada-370-sata"
-- reg : Address range of controller
-- interrupts : Interrupt controller is using
-- nr-ports : Number of SATA ports in use.
-
-Optional Properties:
-- phys : List of phandles to sata phys
-- phy-names : Should be "0", "1", etc, one number per phandle
-
-Example:
-
- sata@80000 {
- compatible = "marvell,orion-sata";
- reg = <0x80000 0x5000>;
- interrupts = <21>;
- phys = <&sata_phy0>, <&sata_phy1>;
- phy-names = "0", "1";
- nr-ports = <2>;
- }
diff --git a/Documentation/devicetree/bindings/ata/mediatek,mtk-ahci.yaml b/Documentation/devicetree/bindings/ata/mediatek,mtk-ahci.yaml
new file mode 100644
index 000000000000..a34bd2e9c352
--- /dev/null
+++ b/Documentation/devicetree/bindings/ata/mediatek,mtk-ahci.yaml
@@ -0,0 +1,98 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/ata/mediatek,mtk-ahci.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek Serial ATA controller
+
+maintainers:
+ - Ryder Lee <ryder.lee@mediatek.com>
+
+allOf:
+ - $ref: ahci-common.yaml#
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - mediatek,mt7622-ahci
+ - const: mediatek,mtk-ahci
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ interrupt-names:
+ const: hostc
+
+ clocks:
+ maxItems: 5
+
+ clock-names:
+ items:
+ - const: ahb
+ - const: axi
+ - const: asic
+ - const: rbc
+ - const: pm
+
+ power-domains:
+ maxItems: 1
+
+ resets:
+ maxItems: 3
+
+ reset-names:
+ items:
+ - const: axi
+ - const: sw
+ - const: reg
+
+ mediatek,phy-mode:
+ description: System controller phandle, used to enable SATA function
+ $ref: /schemas/types.yaml#/definitions/phandle
+
+required:
+ - reg
+ - interrupts
+ - interrupt-names
+ - clocks
+ - clock-names
+ - phys
+ - phy-names
+ - ports-implemented
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/mt7622-clk.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/phy/phy.h>
+ #include <dt-bindings/power/mt7622-power.h>
+ #include <dt-bindings/reset/mt7622-reset.h>
+
+ sata@1a200000 {
+ compatible = "mediatek,mt7622-ahci", "mediatek,mtk-ahci";
+ reg = <0x1a200000 0x1100>;
+ interrupts = <GIC_SPI 233 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "hostc";
+ clocks = <&pciesys CLK_SATA_AHB_EN>,
+ <&pciesys CLK_SATA_AXI_EN>,
+ <&pciesys CLK_SATA_ASIC_EN>,
+ <&pciesys CLK_SATA_RBC_EN>,
+ <&pciesys CLK_SATA_PM_EN>;
+ clock-names = "ahb", "axi", "asic", "rbc", "pm";
+ phys = <&u3port1 PHY_TYPE_SATA>;
+ phy-names = "sata-phy";
+ ports-implemented = <0x1>;
+ power-domains = <&scpsys MT7622_POWER_DOMAIN_HIF0>;
+ resets = <&pciesys MT7622_SATA_AXI_BUS_RST>,
+ <&pciesys MT7622_SATA_PHY_SW_RST>,
+ <&pciesys MT7622_SATA_PHY_REG_RST>;
+ reset-names = "axi", "sw", "reg";
+ mediatek,phy-mode = <&pciesys>;
+ };
diff --git a/Documentation/devicetree/bindings/ata/nvidia,tegra-ahci.yaml b/Documentation/devicetree/bindings/ata/nvidia,tegra-ahci.yaml
index 3c7a2425f3e6..a17297cbefcb 100644
--- a/Documentation/devicetree/bindings/ata/nvidia,tegra-ahci.yaml
+++ b/Documentation/devicetree/bindings/ata/nvidia,tegra-ahci.yaml
@@ -151,7 +151,7 @@ allOf:
- interconnects
- power-domains
-additionalProperties: true
+additionalProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/ata/pata-arasan.txt b/Documentation/devicetree/bindings/ata/pata-arasan.txt
deleted file mode 100644
index 872edc105680..000000000000
--- a/Documentation/devicetree/bindings/ata/pata-arasan.txt
+++ /dev/null
@@ -1,37 +0,0 @@
-* ARASAN PATA COMPACT FLASH CONTROLLER
-
-Required properties:
-- compatible: "arasan,cf-spear1340"
-- reg: Address range of the CF registers
-- interrupt: Should contain the CF interrupt number
-- clock-frequency: Interface clock rate, in Hz, one of
- 25000000
- 33000000
- 40000000
- 50000000
- 66000000
- 75000000
- 100000000
- 125000000
- 150000000
- 166000000
- 200000000
-
-Optional properties:
-- arasan,broken-udma: if present, UDMA mode is unusable
-- arasan,broken-mwdma: if present, MWDMA mode is unusable
-- arasan,broken-pio: if present, PIO mode is unusable
-- dmas: one DMA channel, as described in bindings/dma/dma.txt
- required unless both UDMA and MWDMA mode are broken
-- dma-names: the corresponding channel name, must be "data"
-
-Example:
-
- cf@fc000000 {
- compatible = "arasan,cf-spear1340";
- reg = <0xfc000000 0x1000>;
- interrupt-parent = <&vic1>;
- interrupts = <12>;
- dmas = <&dma-controller 23>;
- dma-names = "data";
- };
diff --git a/Documentation/devicetree/bindings/ata/pata-common.yaml b/Documentation/devicetree/bindings/ata/pata-common.yaml
index 2412894a255d..4e867dd4d402 100644
--- a/Documentation/devicetree/bindings/ata/pata-common.yaml
+++ b/Documentation/devicetree/bindings/ata/pata-common.yaml
@@ -12,7 +12,7 @@ maintainers:
description: |
This document defines device tree properties common to most Parallel
ATA (PATA, also known as IDE) AT attachment storage devices.
- It doesn't constitue a device tree binding specification by itself but is
+ It doesn't constitute a device tree binding specification by itself but is
meant to be referenced by device tree bindings.
The PATA (IDE) controller-specific device tree bindings are responsible for
@@ -38,6 +38,7 @@ patternProperties:
ID number 0 and the slave drive will have ID number 1. The PATA port
nodes will be named "ide-port".
type: object
+ additionalProperties: false
properties:
reg:
diff --git a/Documentation/devicetree/bindings/ata/qcom-sata.txt b/Documentation/devicetree/bindings/ata/qcom-sata.txt
deleted file mode 100644
index 094de91cd9fd..000000000000
--- a/Documentation/devicetree/bindings/ata/qcom-sata.txt
+++ /dev/null
@@ -1,48 +0,0 @@
-* Qualcomm AHCI SATA Controller
-
-SATA nodes are defined to describe on-chip Serial ATA controllers.
-Each SATA controller should have its own node.
-
-Required properties:
-- compatible : compatible list, must contain "generic-ahci"
-- interrupts : <interrupt mapping for SATA IRQ>
-- reg : <registers mapping>
-- phys : Must contain exactly one entry as specified
- in phy-bindings.txt
-- phy-names : Must be "sata-phy"
-
-Required properties for "qcom,ipq806x-ahci" compatible:
-- clocks : Must contain an entry for each entry in clock-names.
-- clock-names : Shall be:
- "slave_iface" - Fabric port AHB clock for SATA
- "iface" - AHB clock
- "core" - core clock
- "rxoob" - RX out-of-band clock
- "pmalive" - Power Module Alive clock
-- assigned-clocks : Shall be:
- SATA_RXOOB_CLK
- SATA_PMALIVE_CLK
-- assigned-clock-rates : Shall be:
- 100Mhz (100000000) for SATA_RXOOB_CLK
- 100Mhz (100000000) for SATA_PMALIVE_CLK
-
-Example:
- sata@29000000 {
- compatible = "qcom,ipq806x-ahci", "generic-ahci";
- reg = <0x29000000 0x180>;
-
- interrupts = <0 209 0x0>;
-
- clocks = <&gcc SFAB_SATA_S_H_CLK>,
- <&gcc SATA_H_CLK>,
- <&gcc SATA_A_CLK>,
- <&gcc SATA_RXOOB_CLK>,
- <&gcc SATA_PMALIVE_CLK>;
- clock-names = "slave_iface", "iface", "core",
- "rxoob", "pmalive";
- assigned-clocks = <&gcc SATA_RXOOB_CLK>, <&gcc SATA_PMALIVE_CLK>;
- assigned-clock-rates = <100000000>, <100000000>;
-
- phys = <&sata_phy>;
- phy-names = "sata-phy";
- };
diff --git a/Documentation/devicetree/bindings/ata/rockchip,dwc-ahci.yaml b/Documentation/devicetree/bindings/ata/rockchip,dwc-ahci.yaml
new file mode 100644
index 000000000000..b5ecaabfe2e2
--- /dev/null
+++ b/Documentation/devicetree/bindings/ata/rockchip,dwc-ahci.yaml
@@ -0,0 +1,130 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/ata/rockchip,dwc-ahci.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Synopsys DWC AHCI SATA controller for Rockchip devices
+
+maintainers:
+ - Serge Semin <fancer.lancer@gmail.com>
+
+description:
+ This document defines device tree bindings for the Synopsys DWC
+ implementation of the AHCI SATA controller found in Rockchip
+ devices.
+
+select:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - rockchip,rk3568-dwc-ahci
+ - rockchip,rk3576-dwc-ahci
+ - rockchip,rk3588-dwc-ahci
+ required:
+ - compatible
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - rockchip,rk3568-dwc-ahci
+ - rockchip,rk3576-dwc-ahci
+ - rockchip,rk3588-dwc-ahci
+ - const: snps,dwc-ahci
+
+ ports-implemented:
+ const: 1
+
+ power-domains:
+ maxItems: 1
+
+ sata-port@0:
+ $ref: /schemas/ata/snps,dwc-ahci-common.yaml#/$defs/dwc-ahci-port
+
+ properties:
+ reg:
+ const: 0
+
+ unevaluatedProperties: false
+
+patternProperties:
+ "^sata-port@[1-9a-e]$": false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - ports-implemented
+
+allOf:
+ - $ref: snps,dwc-ahci-common.yaml#
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - rockchip,rk3588-dwc-ahci
+ then:
+ properties:
+ clocks:
+ maxItems: 5
+ clock-names:
+ items:
+ - const: sata
+ - const: pmalive
+ - const: rxoob
+ - const: ref
+ - const: asic
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - rockchip,rk3568-dwc-ahci
+ - rockchip,rk3576-dwc-ahci
+ then:
+ properties:
+ clocks:
+ maxItems: 3
+ clock-names:
+ items:
+ - const: sata
+ - const: pmalive
+ - const: rxoob
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/rockchip,rk3588-cru.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/ata/ahci.h>
+ #include <dt-bindings/phy/phy.h>
+
+ sata@fe210000 {
+ compatible = "rockchip,rk3588-dwc-ahci", "snps,dwc-ahci";
+ reg = <0xfe210000 0x1000>;
+ clocks = <&cru ACLK_SATA0>, <&cru CLK_PMALIVE0>,
+ <&cru CLK_RXOOB0>, <&cru CLK_PIPEPHY0_REF>,
+ <&cru CLK_PIPEPHY0_PIPE_ASIC_G>;
+ clock-names = "sata", "pmalive", "rxoob", "ref", "asic";
+ interrupts = <GIC_SPI 273 IRQ_TYPE_LEVEL_HIGH 0>;
+ ports-implemented = <0x1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ sata-port@0 {
+ reg = <0>;
+ hba-port-cap = <HBA_PORT_FBSCP>;
+ phys = <&combphy0_ps PHY_TYPE_SATA>;
+ phy-names = "sata-phy";
+ snps,rx-ts-max = <32>;
+ snps,tx-ts-max = <32>;
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/ata/sata_highbank.yaml b/Documentation/devicetree/bindings/ata/sata_highbank.yaml
index f23f26a8f21c..48bdca0f5577 100644
--- a/Documentation/devicetree/bindings/ata/sata_highbank.yaml
+++ b/Documentation/devicetree/bindings/ata/sata_highbank.yaml
@@ -85,7 +85,7 @@ examples:
dma-coherent;
calxeda,port-phys = <&combophy5 0>, <&combophy0 0>, <&combophy0 1>,
<&combophy0 2>, <&combophy0 3>;
- calxeda,sgpio-gpio =<&gpioh 5 1>, <&gpioh 6 1>, <&gpioh 7 1>;
+ calxeda,sgpio-gpio = <&gpioh 5 1>, <&gpioh 6 1>, <&gpioh 7 1>;
calxeda,led-order = <4 0 1 2 3>;
calxeda,tx-atten = <0xff 22 0xff 0xff 23>;
calxeda,pre-clocks = <10>;
diff --git a/Documentation/devicetree/bindings/ata/snps,dwc-ahci-common.yaml b/Documentation/devicetree/bindings/ata/snps,dwc-ahci-common.yaml
index c1457910520b..34c5bf65b02d 100644
--- a/Documentation/devicetree/bindings/ata/snps,dwc-ahci-common.yaml
+++ b/Documentation/devicetree/bindings/ata/snps,dwc-ahci-common.yaml
@@ -31,11 +31,11 @@ properties:
PM-alive clock, RxOOB detection clock, embedded PHYs reference (Rx/Tx)
clock, etc.
minItems: 1
- maxItems: 4
+ maxItems: 6
clock-names:
minItems: 1
- maxItems: 4
+ maxItems: 6
items:
oneOf:
- description: Application APB/AHB/AXI BIU clock
@@ -48,6 +48,10 @@ properties:
const: pmalive
- description: RxOOB detection clock
const: rxoob
+ - description: PHY Transmit Clock
+ const: asic
+ - description: PHY Receive Clock
+ const: rbc
- description: SATA Ports reference clock
const: ref
diff --git a/Documentation/devicetree/bindings/ata/snps,dwc-ahci.yaml b/Documentation/devicetree/bindings/ata/snps,dwc-ahci.yaml
index 5afa4b57ce20..7707cbed2260 100644
--- a/Documentation/devicetree/bindings/ata/snps,dwc-ahci.yaml
+++ b/Documentation/devicetree/bindings/ata/snps,dwc-ahci.yaml
@@ -13,6 +13,15 @@ description:
This document defines device tree bindings for the generic Synopsys DWC
implementation of the AHCI SATA controller.
+select:
+ properties:
+ compatible:
+ enum:
+ - snps,dwc-ahci
+ - snps,spear-ahci
+ required:
+ - compatible
+
allOf:
- $ref: snps,dwc-ahci-common.yaml#
@@ -23,10 +32,10 @@ properties:
const: snps,dwc-ahci
- description: SPEAr1340 AHCI SATA device
const: snps,spear-ahci
- - description: Rockhip RK3568 AHCI controller
- items:
- - const: rockchip,rk3568-dwc-ahci
- - const: snps,dwc-ahci
+
+ iommus:
+ minItems: 1
+ maxItems: 3
patternProperties:
"^sata-port@[0-9a-e]$":
diff --git a/Documentation/devicetree/bindings/ata/st,ahci.yaml b/Documentation/devicetree/bindings/ata/st,ahci.yaml
new file mode 100644
index 000000000000..6e8e4b4f3d6c
--- /dev/null
+++ b/Documentation/devicetree/bindings/ata/st,ahci.yaml
@@ -0,0 +1,72 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/ata/st,ahci.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: STMicroelectronics STi SATA controller
+
+maintainers:
+ - Patrice Chotard <patrice.chotard@foss.st.com>
+
+allOf:
+ - $ref: ahci-common.yaml#
+
+properties:
+ compatible:
+ const: st,ahci
+
+ interrupt-names:
+ items:
+ - const: hostc
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ items:
+ - const: ahci_clk
+
+ resets:
+ items:
+ - description: Power-down line
+ - description: Soft-reset line
+ - description: Power-reset line
+
+ reset-names:
+ items:
+ - const: pwr-dwn
+ - const: sw-rst
+ - const: pwr-rst
+
+required:
+ - compatible
+ - interrupt-names
+ - phys
+ - phy-names
+ - clocks
+ - clock-names
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/phy/phy.h>
+ #include <dt-bindings/reset/stih407-resets.h>
+ #include <dt-bindings/clock/stih407-clks.h>
+
+ sata@9b20000 {
+ compatible = "st,ahci";
+ reg = <0x9b20000 0x1000>;
+ interrupts = <GIC_SPI 159 IRQ_TYPE_NONE>;
+ interrupt-names = "hostc";
+ phys = <&phy_port0 PHY_TYPE_SATA>;
+ phy-names = "sata-phy";
+ resets = <&powerdown STIH407_SATA0_POWERDOWN>,
+ <&softreset STIH407_SATA0_SOFTRESET>,
+ <&softreset STIH407_SATA0_PWR_SOFTRESET>;
+ reset-names = "pwr-dwn", "sw-rst", "pwr-rst";
+ clocks = <&clk_s_c0_flexgen CLK_ICN_REG>;
+ clock-names = "ahci_clk";
+ };
diff --git a/Documentation/devicetree/bindings/ata/ti,da850-ahci.yaml b/Documentation/devicetree/bindings/ata/ti,da850-ahci.yaml
new file mode 100644
index 000000000000..ce13c76bdffb
--- /dev/null
+++ b/Documentation/devicetree/bindings/ata/ti,da850-ahci.yaml
@@ -0,0 +1,39 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/ata/ti,da850-ahci.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TI DA850 AHCI SATA Controller
+
+maintainers:
+ - Animesh Agarwal <animeshagarwal28@gmail.com>
+
+properties:
+ compatible:
+ const: ti,da850-ahci
+
+ reg:
+ items:
+ - description: Address and size of the register map as defined by the AHCI 1.1 standard.
+ - description:
+ Address and size of Power Down Control Register (PWRDN) for enabling/disabling the SATA clock
+ receiver.
+
+ interrupts:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+additionalProperties: false
+
+examples:
+ - |
+ sata@218000 {
+ compatible = "ti,da850-ahci";
+ reg = <0x218000 0x2000>, <0x22c018 0x4>;
+ interrupts = <67>;
+ };
diff --git a/Documentation/devicetree/bindings/ata/ti,dm816-ahci.yaml b/Documentation/devicetree/bindings/ata/ti,dm816-ahci.yaml
new file mode 100644
index 000000000000..d0ff9e78afe6
--- /dev/null
+++ b/Documentation/devicetree/bindings/ata/ti,dm816-ahci.yaml
@@ -0,0 +1,43 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/ata/ti,dm816-ahci.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TI DM816 AHCI SATA Controller
+
+maintainers:
+ - Bartosz Golaszewski <brgl@bgdev.pl>
+
+allOf:
+ - $ref: ahci-common.yaml#
+
+properties:
+ compatible:
+ const: ti,dm816-ahci
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: functional clock
+ - description: external reference clock
+
+ ti,hwmods:
+ const: sata
+
+required:
+ - compatible
+ - clocks
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ sata@4a140000 {
+ compatible = "ti,dm816-ahci";
+ reg = <0x4a140000 0x10000>;
+ interrupts = <16>;
+ clocks = <&sysclk5_ck>, <&sata_refclk>;
+ };
diff --git a/Documentation/devicetree/bindings/auxdisplay/arm,versatile-lcd.yaml b/Documentation/devicetree/bindings/auxdisplay/arm,versatile-lcd.yaml
index 5d02bd032a85..439f7b811a94 100644
--- a/Documentation/devicetree/bindings/auxdisplay/arm,versatile-lcd.yaml
+++ b/Documentation/devicetree/bindings/auxdisplay/arm,versatile-lcd.yaml
@@ -39,6 +39,6 @@ additionalProperties: false
examples:
- |
lcd@10008000 {
- compatible = "arm,versatile-lcd";
- reg = <0x10008000 0x1000>;
+ compatible = "arm,versatile-lcd";
+ reg = <0x10008000 0x1000>;
};
diff --git a/Documentation/devicetree/bindings/auxdisplay/gpio-7-segment.yaml b/Documentation/devicetree/bindings/auxdisplay/gpio-7-segment.yaml
new file mode 100644
index 000000000000..328954893c64
--- /dev/null
+++ b/Documentation/devicetree/bindings/auxdisplay/gpio-7-segment.yaml
@@ -0,0 +1,55 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/auxdisplay/gpio-7-segment.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: GPIO based LED segment display
+
+maintainers:
+ - Chris Packham <chris.packham@alliedtelesis.co.nz>
+
+properties:
+ compatible:
+ const: gpio-7-segment
+
+ segment-gpios:
+ description: |
+ An array of GPIOs one per segment. The first GPIO corresponds to the A
+ segment, the seventh GPIO corresponds to the G segment. Some LED blocks
+ also have a decimal point which can be specified as an optional eighth
+ segment.
+
+ -a-
+ | |
+ f b
+ | |
+ -g-
+ | |
+ e c
+ | |
+ -d- dp
+
+ minItems: 7
+ maxItems: 8
+
+required:
+ - segment-gpios
+
+additionalProperties: false
+
+examples:
+ - |
+
+ #include <dt-bindings/gpio/gpio.h>
+
+ led-7seg {
+ compatible = "gpio-7-segment";
+ segment-gpios = <&gpio 0 GPIO_ACTIVE_LOW>,
+ <&gpio 1 GPIO_ACTIVE_LOW>,
+ <&gpio 2 GPIO_ACTIVE_LOW>,
+ <&gpio 3 GPIO_ACTIVE_LOW>,
+ <&gpio 4 GPIO_ACTIVE_LOW>,
+ <&gpio 5 GPIO_ACTIVE_LOW>,
+ <&gpio 6 GPIO_ACTIVE_LOW>;
+ };
diff --git a/Documentation/devicetree/bindings/auxdisplay/hit,hd44780.yaml b/Documentation/devicetree/bindings/auxdisplay/hit,hd44780.yaml
index fde07e4b119d..3ca0e9863d83 100644
--- a/Documentation/devicetree/bindings/auxdisplay/hit,hd44780.yaml
+++ b/Documentation/devicetree/bindings/auxdisplay/hit,hd44780.yaml
@@ -84,42 +84,44 @@ additionalProperties: false
examples:
- |
#include <dt-bindings/gpio/gpio.h>
- auxdisplay {
- compatible = "hit,hd44780";
-
- data-gpios = <&hc595 0 GPIO_ACTIVE_HIGH>,
- <&hc595 1 GPIO_ACTIVE_HIGH>,
- <&hc595 2 GPIO_ACTIVE_HIGH>,
- <&hc595 3 GPIO_ACTIVE_HIGH>;
- enable-gpios = <&hc595 4 GPIO_ACTIVE_HIGH>;
- rs-gpios = <&hc595 5 GPIO_ACTIVE_HIGH>;
-
- display-height-chars = <2>;
- display-width-chars = <16>;
+ display-controller {
+ compatible = "hit,hd44780";
+
+ data-gpios = <&hc595 0 GPIO_ACTIVE_HIGH>,
+ <&hc595 1 GPIO_ACTIVE_HIGH>,
+ <&hc595 2 GPIO_ACTIVE_HIGH>,
+ <&hc595 3 GPIO_ACTIVE_HIGH>;
+ enable-gpios = <&hc595 4 GPIO_ACTIVE_HIGH>;
+ rs-gpios = <&hc595 5 GPIO_ACTIVE_HIGH>;
+
+ display-height-chars = <2>;
+ display-width-chars = <16>;
};
+
- |
#include <dt-bindings/gpio/gpio.h>
i2c {
- #address-cells = <1>;
- #size-cells = <0>;
-
- pcf8574: pcf8574@27 {
- compatible = "nxp,pcf8574";
- reg = <0x27>;
- gpio-controller;
- #gpio-cells = <2>;
- };
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pcf8574: gpio-expander@27 {
+ compatible = "nxp,pcf8574";
+ reg = <0x27>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
};
- hd44780 {
- compatible = "hit,hd44780";
- display-height-chars = <2>;
- display-width-chars = <16>;
- data-gpios = <&pcf8574 4 0>,
- <&pcf8574 5 0>,
- <&pcf8574 6 0>,
- <&pcf8574 7 0>;
- enable-gpios = <&pcf8574 2 0>;
- rs-gpios = <&pcf8574 0 0>;
- rw-gpios = <&pcf8574 1 0>;
- backlight-gpios = <&pcf8574 3 0>;
+
+ display-controller {
+ compatible = "hit,hd44780";
+ display-height-chars = <2>;
+ display-width-chars = <16>;
+ data-gpios = <&pcf8574 4 GPIO_ACTIVE_HIGH>,
+ <&pcf8574 5 GPIO_ACTIVE_HIGH>,
+ <&pcf8574 6 GPIO_ACTIVE_HIGH>,
+ <&pcf8574 7 GPIO_ACTIVE_HIGH>;
+ enable-gpios = <&pcf8574 2 GPIO_ACTIVE_HIGH>;
+ rs-gpios = <&pcf8574 0 GPIO_ACTIVE_HIGH>;
+ rw-gpios = <&pcf8574 1 GPIO_ACTIVE_HIGH>;
+ backlight-gpios = <&pcf8574 3 GPIO_ACTIVE_HIGH>;
};
diff --git a/Documentation/devicetree/bindings/auxdisplay/holtek,ht16k33.yaml b/Documentation/devicetree/bindings/auxdisplay/holtek,ht16k33.yaml
index 49304a1476ab..b90eec2077b4 100644
--- a/Documentation/devicetree/bindings/auxdisplay/holtek,ht16k33.yaml
+++ b/Documentation/devicetree/bindings/auxdisplay/holtek,ht16k33.yaml
@@ -40,6 +40,7 @@ properties:
linux,keymap: true
linux,no-autorepeat:
+ type: boolean
description: Disable keyrepeat
default-brightness-level:
@@ -73,31 +74,31 @@ examples:
#include <dt-bindings/input/input.h>
#include <dt-bindings/leds/common.h>
i2c {
- #address-cells = <1>;
- #size-cells = <0>;
-
- ht16k33: ht16k33@70 {
- compatible = "holtek,ht16k33";
- reg = <0x70>;
- refresh-rate-hz = <20>;
- interrupt-parent = <&gpio4>;
- interrupts = <5 (IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_EDGE_RISING)>;
- debounce-delay-ms = <50>;
- linux,keymap = <MATRIX_KEY(2, 0, KEY_F6)>,
- <MATRIX_KEY(3, 0, KEY_F8)>,
- <MATRIX_KEY(4, 0, KEY_F10)>,
- <MATRIX_KEY(5, 0, KEY_F4)>,
- <MATRIX_KEY(6, 0, KEY_F2)>,
- <MATRIX_KEY(2, 1, KEY_F5)>,
- <MATRIX_KEY(3, 1, KEY_F7)>,
- <MATRIX_KEY(4, 1, KEY_F9)>,
- <MATRIX_KEY(5, 1, KEY_F3)>,
- <MATRIX_KEY(6, 1, KEY_F1)>;
-
- led {
- color = <LED_COLOR_ID_RED>;
- function = LED_FUNCTION_BACKLIGHT;
- linux,default-trigger = "backlight";
- };
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ display-controller@70 {
+ compatible = "holtek,ht16k33";
+ reg = <0x70>;
+ refresh-rate-hz = <20>;
+ interrupt-parent = <&gpio4>;
+ interrupts = <5 (IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_EDGE_RISING)>;
+ debounce-delay-ms = <50>;
+ linux,keymap = <MATRIX_KEY(2, 0, KEY_F6)>,
+ <MATRIX_KEY(3, 0, KEY_F8)>,
+ <MATRIX_KEY(4, 0, KEY_F10)>,
+ <MATRIX_KEY(5, 0, KEY_F4)>,
+ <MATRIX_KEY(6, 0, KEY_F2)>,
+ <MATRIX_KEY(2, 1, KEY_F5)>,
+ <MATRIX_KEY(3, 1, KEY_F7)>,
+ <MATRIX_KEY(4, 1, KEY_F9)>,
+ <MATRIX_KEY(5, 1, KEY_F3)>,
+ <MATRIX_KEY(6, 1, KEY_F1)>;
+
+ led {
+ color = <LED_COLOR_ID_RED>;
+ function = LED_FUNCTION_BACKLIGHT;
+ linux,default-trigger = "backlight";
};
- };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/auxdisplay/img,ascii-lcd.yaml b/Documentation/devicetree/bindings/auxdisplay/img,ascii-lcd.yaml
index 1899b23de7d1..55e9831b3f67 100644
--- a/Documentation/devicetree/bindings/auxdisplay/img,ascii-lcd.yaml
+++ b/Documentation/devicetree/bindings/auxdisplay/img,ascii-lcd.yaml
@@ -50,6 +50,6 @@ additionalProperties: false
examples:
- |
lcd: lcd@17fff000 {
- compatible = "img,boston-lcd";
- reg = <0x17fff000 0x8>;
+ compatible = "img,boston-lcd";
+ reg = <0x17fff000 0x8>;
};
diff --git a/Documentation/devicetree/bindings/auxdisplay/maxim,max6959.yaml b/Documentation/devicetree/bindings/auxdisplay/maxim,max6959.yaml
new file mode 100644
index 000000000000..20dd9e8c8190
--- /dev/null
+++ b/Documentation/devicetree/bindings/auxdisplay/maxim,max6959.yaml
@@ -0,0 +1,44 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/auxdisplay/maxim,max6959.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MAX6958/6959 7-segment LED display controller
+
+maintainers:
+ - Andy Shevchenko <andriy.shevchenko@linux.intel.com>
+
+description:
+ The Maxim MAX6958/6959 7-segment LED display controller provides
+ an I2C interface to up to four 7-segment LED digits. The MAX6959,
+ in comparison to MAX6958, adds input support. Type of the chip can
+ be autodetected via specific register read, and hence the features
+ may be enabled in the driver at run-time, in case they are requested
+ via Device Tree. A given hardware is simple and does not provide
+ any additional pins, such as reset or power enable.
+
+properties:
+ compatible:
+ const: maxim,max6959
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ display-controller@38 {
+ compatible = "maxim,max6959";
+ reg = <0x38>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/board/fsl,bcsr.yaml b/Documentation/devicetree/bindings/board/fsl,bcsr.yaml
new file mode 100644
index 000000000000..df3dd8399671
--- /dev/null
+++ b/Documentation/devicetree/bindings/board/fsl,bcsr.yaml
@@ -0,0 +1,32 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/board/fsl,bcsr.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Board Control and Status
+
+maintainers:
+ - Frank Li <Frank.Li@nxp.com>
+
+properties:
+ compatible:
+ enum:
+ - fsl,mpc8360mds-bcsr
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ board@f8000000 {
+ compatible = "fsl,mpc8360mds-bcsr";
+ reg = <0xf8000000 0x8000>;
+ };
+
diff --git a/Documentation/devicetree/bindings/board/fsl,fpga-qixis-i2c.yaml b/Documentation/devicetree/bindings/board/fsl,fpga-qixis-i2c.yaml
new file mode 100644
index 000000000000..e889dac052e7
--- /dev/null
+++ b/Documentation/devicetree/bindings/board/fsl,fpga-qixis-i2c.yaml
@@ -0,0 +1,128 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/board/fsl,fpga-qixis-i2c.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale on-board FPGA connected on I2C bus
+
+maintainers:
+ - Frank Li <Frank.Li@nxp.com>
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - fsl,bsc9132qds-fpga
+ - const: fsl,fpga-qixis-i2c
+ - items:
+ - enum:
+ - fsl,ls1028aqds-fpga
+ - fsl,lx2160aqds-fpga
+ - const: fsl,fpga-qixis-i2c
+ - const: simple-mfd
+ - const: fsl,lx2160ardb-fpga
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+ interrupts:
+ maxItems: 1
+
+ reg:
+ maxItems: 1
+
+ mux-controller:
+ $ref: /schemas/mux/reg-mux.yaml
+
+patternProperties:
+ "^gpio@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ contains:
+ enum:
+ - fsl,lx2160ardb-fpga-gpio-sfp
+
+required:
+ - compatible
+ - reg
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - fsl,lx2160ardb-fpga
+ then:
+ required:
+ - "#address-cells"
+ - "#size-cells"
+ else:
+ properties:
+ "#address-cells": false
+ "#size-cells": false
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ board-control@66 {
+ compatible = "fsl,bsc9132qds-fpga", "fsl,fpga-qixis-i2c";
+ reg = <0x66>;
+ };
+ };
+
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ board-control@66 {
+ compatible = "fsl,ls1028aqds-fpga", "fsl,fpga-qixis-i2c",
+ "simple-mfd";
+ reg = <0x66>;
+
+ mux-controller {
+ compatible = "reg-mux";
+ #mux-control-cells = <1>;
+ mux-reg-masks = <0x54 0xf0>; /* 0: reg 0x54, bits 7:4 */
+ };
+ };
+ };
+
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ board-control@66 {
+ compatible = "fsl,lx2160ardb-fpga";
+ reg = <0x66>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ gpio@19 {
+ compatible = "fsl,lx2160ardb-fpga-gpio-sfp";
+ reg = <0x19>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-line-names =
+ "SFP2_TX_EN", "",
+ "", "",
+ "SFP2_RX_LOS", "SFP2_TX_FAULT",
+ "", "SFP2_MOD_ABS";
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/board/fsl,fpga-qixis.yaml b/Documentation/devicetree/bindings/board/fsl,fpga-qixis.yaml
new file mode 100644
index 000000000000..2eacb581b9fd
--- /dev/null
+++ b/Documentation/devicetree/bindings/board/fsl,fpga-qixis.yaml
@@ -0,0 +1,91 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/board/fsl,fpga-qixis.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale on-board FPGA/CPLD
+
+maintainers:
+ - Frank Li <Frank.Li@nxp.com>
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - const: fsl,p1022ds-fpga
+ - const: fsl,fpga-ngpixis
+ - items:
+ - enum:
+ - fsl,ls1088aqds-fpga
+ - fsl,ls1088ardb-fpga
+ - fsl,ls2080aqds-fpga
+ - fsl,ls2080ardb-fpga
+ - const: fsl,fpga-qixis
+ - items:
+ - enum:
+ - fsl,ls1043aqds-fpga
+ - fsl,ls1043ardb-fpga
+ - fsl,ls1046aqds-fpga
+ - fsl,ls1046ardb-fpga
+ - fsl,ls208xaqds-fpga
+ - const: fsl,fpga-qixis
+ - const: simple-mfd
+ - enum:
+ - fsl,ls1043ardb-cpld
+ - fsl,ls1046ardb-cpld
+ - fsl,t1040rdb-cpld
+ - fsl,t1042rdb-cpld
+ - fsl,t1042rdb_pi-cpld
+
+ interrupts:
+ maxItems: 1
+
+ reg:
+ maxItems: 1
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 1
+
+ ranges:
+ maxItems: 1
+
+patternProperties:
+ '^mdio-mux@[a-f0-9,]+$':
+ $ref: /schemas/net/mdio-mux-mmioreg.yaml
+
+ '^gpio@[0-9a-f]+$':
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ contains:
+ enum:
+ - fsl,ls1046aqds-fpga-gpio-stat-pres2
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ board-control@3 {
+ compatible = "fsl,p1022ds-fpga", "fsl,fpga-ngpixis";
+ reg = <3 0x30>;
+ interrupt-parent = <&mpic>;
+ interrupts = <8 IRQ_TYPE_LEVEL_LOW 0 0>;
+ };
+
+ - |
+ board-control@3 {
+ compatible = "fsl,ls2080ardb-fpga", "fsl,fpga-qixis";
+ reg = <0x3 0x10000>;
+ };
+
diff --git a/Documentation/devicetree/bindings/board/fsl-board.txt b/Documentation/devicetree/bindings/board/fsl-board.txt
deleted file mode 100644
index 9cde57015921..000000000000
--- a/Documentation/devicetree/bindings/board/fsl-board.txt
+++ /dev/null
@@ -1,81 +0,0 @@
-Freescale Reference Board Bindings
-
-This document describes device tree bindings for various devices that
-exist on some Freescale reference boards.
-
-* Board Control and Status (BCSR)
-
-Required properties:
-
- - compatible : Should be "fsl,<board>-bcsr"
- - reg : Offset and length of the register set for the device
-
-Example:
-
- bcsr@f8000000 {
- compatible = "fsl,mpc8360mds-bcsr";
- reg = <f8000000 8000>;
- };
-
-* Freescale on-board FPGA
-
-This is the memory-mapped registers for on board FPGA.
-
-Required properties:
-- compatible: should be a board-specific string followed by a string
- indicating the type of FPGA. Example:
- "fsl,<board>-fpga", "fsl,fpga-pixis", or
- "fsl,<board>-fpga", "fsl,fpga-qixis"
-- reg: should contain the address and the length of the FPGA register set.
-
-Optional properties:
-- interrupts: should specify event (wakeup) IRQ.
-
-Example (P1022DS):
-
- board-control@3,0 {
- compatible = "fsl,p1022ds-fpga", "fsl,fpga-ngpixis";
- reg = <3 0 0x30>;
- interrupt-parent = <&mpic>;
- interrupts = <8 8 0 0>;
- };
-
-Example (LS2080A-RDB):
-
- cpld@3,0 {
- compatible = "fsl,ls2080ardb-fpga", "fsl,fpga-qixis";
- reg = <0x3 0 0x10000>;
- };
-
-* Freescale on-board FPGA connected on I2C bus
-
-Some Freescale boards like BSC9132QDS have on board FPGA connected on
-the i2c bus.
-
-Required properties:
-- compatible: Should be a board-specific string followed by a string
- indicating the type of FPGA. Example:
- "fsl,<board>-fpga", "fsl,fpga-qixis-i2c"
-- reg: Should contain the address of the FPGA
-
-Example:
- fpga: fpga@66 {
- compatible = "fsl,bsc9132qds-fpga", "fsl,fpga-qixis-i2c";
- reg = <0x66>;
- };
-
-* Freescale on-board CPLD
-
-Some Freescale boards like T1040RDB have an on board CPLD connected.
-
-Required properties:
-- compatible: Should be a board-specific string like "fsl,<board>-cpld"
- Example:
- "fsl,t1040rdb-cpld", "fsl,t1042rdb-cpld", "fsl,t1042rdb_pi-cpld"
-- reg: should describe CPLD registers
-
-Example:
- cpld@3,0 {
- compatible = "fsl,t1040rdb-cpld";
- reg = <3 0 0x300>;
- };
diff --git a/Documentation/devicetree/bindings/bus/allwinner,sun50i-a64-de2.yaml b/Documentation/devicetree/bindings/bus/allwinner,sun50i-a64-de2.yaml
index 9845a187bdf6..232252e8825e 100644
--- a/Documentation/devicetree/bindings/bus/allwinner,sun50i-a64-de2.yaml
+++ b/Documentation/devicetree/bindings/bus/allwinner,sun50i-a64-de2.yaml
@@ -44,7 +44,7 @@ properties:
patternProperties:
# All other properties should be child nodes with unit-address and 'reg'
- "^[a-zA-Z][a-zA-Z0-9,+\\-._]{0,63}@[0-9a-fA-F]+$":
+ "@[0-9a-f]+$":
type: object
additionalProperties: true
properties:
diff --git a/Documentation/devicetree/bindings/bus/allwinner,sun8i-a23-rsb.yaml b/Documentation/devicetree/bindings/bus/allwinner,sun8i-a23-rsb.yaml
index 24c939f59091..cd5c2a532a92 100644
--- a/Documentation/devicetree/bindings/bus/allwinner,sun8i-a23-rsb.yaml
+++ b/Documentation/devicetree/bindings/bus/allwinner,sun8i-a23-rsb.yaml
@@ -43,7 +43,7 @@ properties:
maximum: 20000000
patternProperties:
- "^.*@[0-9a-fA-F]+$":
+ "@[0-9a-f]+$":
type: object
additionalProperties: true
properties:
diff --git a/Documentation/devicetree/bindings/bus/brcm,gisb-arb.yaml b/Documentation/devicetree/bindings/bus/brcm,gisb-arb.yaml
index b23c3001991e..9017c5a3f3d2 100644
--- a/Documentation/devicetree/bindings/bus/brcm,gisb-arb.yaml
+++ b/Documentation/devicetree/bindings/bus/brcm,gisb-arb.yaml
@@ -18,6 +18,7 @@ properties:
- const: brcm,gisb-arb
- items:
- enum:
+ - brcm,bcm74165-gisb-arb # for V7 new style 16nm chips
- brcm,bcm7278-gisb-arb # for V7 28nm chips
- brcm,bcm7435-gisb-arb # for newer 40nm chips
- brcm,bcm7400-gisb-arb # for older 40nm chips and all 65nm chips
@@ -43,7 +44,7 @@ properties:
brcm,gisb-arb-master-names:
$ref: /schemas/types.yaml#/definitions/string-array
description: >
- String list of the litteral name of the GISB masters. Should match the
+ String list of the literal name of the GISB masters. Should match the
number of bits set in brcm,gisb-master-mask and the order in which they
appear from MSB to LSB.
diff --git a/Documentation/devicetree/bindings/bus/cznic,moxtet.yaml b/Documentation/devicetree/bindings/bus/cznic,moxtet.yaml
new file mode 100644
index 000000000000..d340899ca5f1
--- /dev/null
+++ b/Documentation/devicetree/bindings/bus/cznic,moxtet.yaml
@@ -0,0 +1,94 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/bus/cznic,moxtet.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Turris Moxtet SPI bus
+
+maintainers:
+ - Marek Behún <kabel@kernel.org>
+
+description: >
+ Turris Mox module status and configuration bus (over SPI)
+
+ The driver finds the devices connected to the bus by itself, but it may be
+ needed to reference some of them from other parts of the device tree. In that
+ case the devices can be defined as subnodes of the moxtet node.
+
+properties:
+ compatible:
+ const: cznic,moxtet
+
+ reg:
+ maxItems: 1
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+ spi-cpol: true
+
+ spi-cpha: true
+
+ spi-max-frequency: true
+
+ interrupt-controller: true
+
+ "#interrupt-cells":
+ const: 1
+
+ interrupts:
+ maxItems: 1
+
+ reset-gpios:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - "#address-cells"
+ - "#size-cells"
+ - spi-cpol
+ - spi-cpha
+ - interrupts
+ - interrupt-controller
+ - "#interrupt-cells"
+
+additionalProperties:
+ type: object
+
+ required:
+ - reg
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ moxtet@1 {
+ compatible = "cznic,moxtet";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+ spi-max-frequency = <10000000>;
+ spi-cpol;
+ spi-cpha;
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ interrupt-parent = <&gpiosb>;
+ interrupts = <5 IRQ_TYPE_EDGE_FALLING>;
+
+ gpio@0 {
+ compatible = "cznic,moxtet-gpio";
+ gpio-controller;
+ #gpio-cells = <2>;
+ reg = <0>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/bus/fsl,imx8mp-aipstz.yaml b/Documentation/devicetree/bindings/bus/fsl,imx8mp-aipstz.yaml
new file mode 100644
index 000000000000..993293ebc4d3
--- /dev/null
+++ b/Documentation/devicetree/bindings/bus/fsl,imx8mp-aipstz.yaml
@@ -0,0 +1,104 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/bus/fsl,imx8mp-aipstz.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Secure AHB to IP Slave bus (AIPSTZ) bridge
+
+description:
+ The secure AIPS bridge (AIPSTZ) acts as a bridge for AHB masters issuing
+ transactions to IP Slave peripherals. Additionally, this module offers access
+ control configurations meant to restrict which peripherals a master can
+ access.
+
+maintainers:
+ - Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com>
+
+properties:
+ compatible:
+ const: fsl,imx8mp-aipstz
+
+ reg:
+ maxItems: 1
+
+ power-domains:
+ maxItems: 1
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 1
+
+ "#access-controller-cells":
+ const: 3
+ description:
+ First cell - consumer ID
+ Second cell - consumer type (master or peripheral)
+ Third cell - configuration value
+
+ ranges: true
+
+# borrowed from simple-bus.yaml, no additional requirements for children
+patternProperties:
+ "@(0|[1-9a-f][0-9a-f]*)$":
+ type: object
+ additionalProperties: true
+ properties:
+ reg:
+ items:
+ minItems: 2
+ maxItems: 4
+ minItems: 1
+ maxItems: 1024
+ ranges:
+ oneOf:
+ - items:
+ minItems: 3
+ maxItems: 7
+ minItems: 1
+ maxItems: 1024
+ - $ref: /schemas/types.yaml#/definitions/flag
+ anyOf:
+ - required:
+ - reg
+ - required:
+ - ranges
+
+required:
+ - compatible
+ - reg
+ - power-domains
+ - "#address-cells"
+ - "#size-cells"
+ - "#access-controller-cells"
+ - ranges
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/imx8mp-clock.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ bus@30df0000 {
+ compatible = "fsl,imx8mp-aipstz";
+ reg = <0x30df0000 0x10000>;
+ ranges = <0x30c00000 0x30c00000 0x400000>;
+ power-domains = <&pgc_audio>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ #access-controller-cells = <3>;
+
+ dma-controller@30e00000 {
+ compatible = "fsl,imx8mp-sdma", "fsl,imx8mq-sdma";
+ reg = <0x30e00000 0x10000>;
+ #dma-cells = <3>;
+ clocks = <&audio_blk_ctrl IMX8MP_CLK_AUDIOMIX_SDMA3_ROOT>,
+ <&clk IMX8MP_CLK_AUDIO_ROOT>;
+ clock-names = "ipg", "ahb";
+ interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
+ fsl,sdma-ram-script-name = "imx/sdma/sdma-imx7d.bin";
+ };
+ };
diff --git a/Documentation/devicetree/bindings/bus/fsl,imx8qxp-pixel-link-msi-bus.yaml b/Documentation/devicetree/bindings/bus/fsl,imx8qxp-pixel-link-msi-bus.yaml
index b568d0ce438d..6645352c7f6b 100644
--- a/Documentation/devicetree/bindings/bus/fsl,imx8qxp-pixel-link-msi-bus.yaml
+++ b/Documentation/devicetree/bindings/bus/fsl,imx8qxp-pixel-link-msi-bus.yaml
@@ -70,12 +70,9 @@ properties:
- const: ahb
patternProperties:
- "^.*@[0-9a-f]+$":
+ "@[0-9a-f]+$":
description: Devices attached to the bus
type: object
- properties:
- reg:
- maxItems: 1
required:
- reg
@@ -106,11 +103,14 @@ examples:
clock-names = "msi", "ahb";
power-domains = <&pd IMX_SC_R_DC_0>;
- syscon@56221000 {
- compatible = "fsl,imx8qxp-mipi-lvds-csr", "syscon", "simple-mfd";
+ bus@56221000 {
+ compatible = "simple-pm-bus", "syscon";
reg = <0x56221000 0x1000>;
clocks = <&mipi_lvds_0_di_mipi_lvds_regs_lpcg IMX_LPCG_CLK_4>;
clock-names = "ipg";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
pxl2dpi {
compatible = "fsl,imx8qxp-pxl2dpi";
diff --git a/Documentation/devicetree/bindings/bus/imx-weim.txt b/Documentation/devicetree/bindings/bus/imx-weim.txt
deleted file mode 100644
index e7f502070d77..000000000000
--- a/Documentation/devicetree/bindings/bus/imx-weim.txt
+++ /dev/null
@@ -1,117 +0,0 @@
-Device tree bindings for i.MX Wireless External Interface Module (WEIM)
-
-The term "wireless" does not imply that the WEIM is literally an interface
-without wires. It simply means that this module was originally designed for
-wireless and mobile applications that use low-power technology.
-
-The actual devices are instantiated from the child nodes of a WEIM node.
-
-Required properties:
-
- - compatible: Should contain one of the following:
- "fsl,imx1-weim"
- "fsl,imx27-weim"
- "fsl,imx51-weim"
- "fsl,imx50-weim"
- "fsl,imx6q-weim"
- - reg: A resource specifier for the register space
- (see the example below)
- - clocks: the clock, see the example below.
- - #address-cells: Must be set to 2 to allow memory address translation
- - #size-cells: Must be set to 1 to allow CS address passing
- - ranges: Must be set up to reflect the memory layout with four
- integer values for each chip-select line in use:
-
- <cs-number> 0 <physical address of mapping> <size>
-
-Optional properties:
-
- - fsl,weim-cs-gpr: For "fsl,imx50-weim" and "fsl,imx6q-weim" type of
- devices, it should be the phandle to the system General
- Purpose Register controller that contains WEIM CS GPR
- register, e.g. IOMUXC_GPR1 on i.MX6Q. IOMUXC_GPR1[11:0]
- should be set up as one of the following 4 possible
- values depending on the CS space configuration.
-
- IOMUXC_GPR1[11:0] CS0 CS1 CS2 CS3
- ---------------------------------------------
- 05 128M 0M 0M 0M
- 033 64M 64M 0M 0M
- 0113 64M 32M 32M 0M
- 01111 32M 32M 32M 32M
-
- In case that the property is absent, the reset value or
- what bootloader sets up in IOMUXC_GPR1[11:0] will be
- used.
-
- - fsl,burst-clk-enable For "fsl,imx50-weim" and "fsl,imx6q-weim" type of
- devices, the presence of this property indicates that
- the weim bus should operate in Burst Clock Mode.
-
- - fsl,continuous-burst-clk Make Burst Clock to output continuous clock.
- Without this option Burst Clock will output clock
- only when necessary. This takes effect only if
- "fsl,burst-clk-enable" is set.
-
-Timing property for child nodes. It is mandatory, not optional.
-
- - fsl,weim-cs-timing: The timing array, contains timing values for the
- child node. We get the CS indexes from the address
- ranges in the child node's "reg" property.
- The number of registers depends on the selected chip:
- For i.MX1, i.MX21 ("fsl,imx1-weim") there are two
- registers: CSxU, CSxL.
- For i.MX25, i.MX27, i.MX31 and i.MX35 ("fsl,imx27-weim")
- there are three registers: CSCRxU, CSCRxL, CSCRxA.
- For i.MX50, i.MX53 ("fsl,imx50-weim"),
- i.MX51 ("fsl,imx51-weim") and i.MX6Q ("fsl,imx6q-weim")
- there are six registers: CSxGCR1, CSxGCR2, CSxRCR1,
- CSxRCR2, CSxWCR1, CSxWCR2.
-
-Example for an imx6q-sabreauto board, the NOR flash connected to the WEIM:
-
- weim: weim@21b8000 {
- compatible = "fsl,imx6q-weim";
- reg = <0x021b8000 0x4000>;
- clocks = <&clks 196>;
- #address-cells = <2>;
- #size-cells = <1>;
- ranges = <0 0 0x08000000 0x08000000>;
- fsl,weim-cs-gpr = <&gpr>;
-
- nor@0,0 {
- compatible = "cfi-flash";
- reg = <0 0 0x02000000>;
- #address-cells = <1>;
- #size-cells = <1>;
- bank-width = <2>;
- fsl,weim-cs-timing = <0x00620081 0x00000001 0x1c022000
- 0x0000c000 0x1404a38e 0x00000000>;
- };
- };
-
-Example for an imx6q-based board, a multi-chipselect device connected to WEIM:
-
-In this case, both chip select 0 and 1 will be configured with the same timing
-array values.
-
- weim: weim@21b8000 {
- compatible = "fsl,imx6q-weim";
- reg = <0x021b8000 0x4000>;
- clocks = <&clks 196>;
- #address-cells = <2>;
- #size-cells = <1>;
- ranges = <0 0 0x08000000 0x02000000
- 1 0 0x0a000000 0x02000000
- 2 0 0x0c000000 0x02000000
- 3 0 0x0e000000 0x02000000>;
- fsl,weim-cs-gpr = <&gpr>;
-
- acme@0 {
- compatible = "acme,whatever";
- reg = <0 0 0x100>, <0 0x400000 0x800>,
- <1 0x400000 0x800>;
- fsl,weim-cs-timing = <0x024400b1 0x00001010 0x20081100
- 0x00000000 0xa0000240 0x00000000>;
- };
- };
diff --git a/Documentation/devicetree/bindings/bus/microsoft,vmbus.yaml b/Documentation/devicetree/bindings/bus/microsoft,vmbus.yaml
index a8d40c766dcd..0bea4f5287ce 100644
--- a/Documentation/devicetree/bindings/bus/microsoft,vmbus.yaml
+++ b/Documentation/devicetree/bindings/bus/microsoft,vmbus.yaml
@@ -10,8 +10,8 @@ maintainers:
- Saurabh Sengar <ssengar@linux.microsoft.com>
description:
- VMBus is a software bus that implement the protocols for communication
- between the root or host OS and guest OSs (virtual machines).
+ VMBus is a software bus that implements the protocols for communication
+ between the root or host OS and guest OS'es (virtual machines).
properties:
compatible:
@@ -25,9 +25,16 @@ properties:
'#size-cells':
const: 1
+ dma-coherent: true
+
+ interrupts:
+ maxItems: 1
+ description: Interrupt is used to report a message from the host.
+
required:
- compatible
- ranges
+ - interrupts
- '#address-cells'
- '#size-cells'
@@ -35,6 +42,8 @@ additionalProperties: false
examples:
- |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
soc {
#address-cells = <2>;
#size-cells = <1>;
@@ -49,6 +58,9 @@ examples:
#address-cells = <2>;
#size-cells = <1>;
ranges = <0x0f 0xf0000000 0x0f 0xf0000000 0x10000000>;
+ dma-coherent;
+ interrupt-parent = <&gic>;
+ interrupts = <GIC_PPI 2 IRQ_TYPE_EDGE_RISING>;
};
};
};
diff --git a/Documentation/devicetree/bindings/bus/moxtet.txt b/Documentation/devicetree/bindings/bus/moxtet.txt
deleted file mode 100644
index fb50fc865336..000000000000
--- a/Documentation/devicetree/bindings/bus/moxtet.txt
+++ /dev/null
@@ -1,46 +0,0 @@
-Turris Mox module status and configuration bus (over SPI)
-
-Required properties:
- - compatible : Should be "cznic,moxtet"
- - #address-cells : Has to be 1
- - #size-cells : Has to be 0
- - spi-cpol : Required inverted clock polarity
- - spi-cpha : Required shifted clock phase
- - interrupts : Must contain reference to the shared interrupt line
- - interrupt-controller : Required
- - #interrupt-cells : Has to be 1
-
-For other required and optional properties of SPI slave nodes please refer to
-../spi/spi-bus.txt.
-
-Required properties of subnodes:
- - reg : Should be position on the Moxtet bus (how many Moxtet
- modules are between this module and CPU module, so
- either 0 or a positive integer)
-
-The driver finds the devices connected to the bus by itself, but it may be
-needed to reference some of them from other parts of the device tree. In that
-case the devices can be defined as subnodes of the moxtet node.
-
-Example:
-
- moxtet@1 {
- compatible = "cznic,moxtet";
- #address-cells = <1>;
- #size-cells = <0>;
- reg = <1>;
- spi-max-frequency = <10000000>;
- spi-cpol;
- spi-cpha;
- interrupt-controller;
- #interrupt-cells = <1>;
- interrupt-parent = <&gpiosb>;
- interrupts = <5 IRQ_TYPE_EDGE_FALLING>;
-
- moxtet_sfp: gpio@0 {
- compatible = "cznic,moxtet-gpio";
- gpio-controller;
- #gpio-cells = <2>;
- reg = <0>;
- }
- };
diff --git a/Documentation/devicetree/bindings/bus/nvidia,tegra210-aconnect.yaml b/Documentation/devicetree/bindings/bus/nvidia,tegra210-aconnect.yaml
index 4157e885c6e7..81a65e9f93f1 100644
--- a/Documentation/devicetree/bindings/bus/nvidia,tegra210-aconnect.yaml
+++ b/Documentation/devicetree/bindings/bus/nvidia,tegra210-aconnect.yaml
@@ -7,10 +7,10 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: NVIDIA Tegra ACONNECT Bus
description: |
- The Tegra ACONNECT bus is an AXI switch which is used to connnect various
+ The Tegra ACONNECT bus is an AXI switch which is used to connect various
components inside the Audio Processing Engine (APE). All CPU accesses to
the APE subsystem go through the ACONNECT via an APB to AXI wrapper. All
- devices accessed via the ACONNNECT are described by child-nodes.
+ devices accessed via the ACONNECT are described by child-nodes.
maintainers:
- Jon Hunter <jonathanh@nvidia.com>
@@ -21,6 +21,7 @@ properties:
- const: nvidia,tegra210-aconnect
- items:
- enum:
+ - nvidia,tegra264-aconnect
- nvidia,tegra234-aconnect
- nvidia,tegra186-aconnect
- nvidia,tegra194-aconnect
diff --git a/Documentation/devicetree/bindings/bus/qcom,ebi2.txt b/Documentation/devicetree/bindings/bus/qcom,ebi2.txt
deleted file mode 100644
index 5058aa2c63b2..000000000000
--- a/Documentation/devicetree/bindings/bus/qcom,ebi2.txt
+++ /dev/null
@@ -1,138 +0,0 @@
-Qualcomm External Bus Interface 2 (EBI2)
-
-The EBI2 contains two peripheral blocks: XMEM and LCDC. The XMEM handles any
-external memory (such as NAND or other memory-mapped peripherals) whereas
-LCDC handles LCD displays.
-
-As it says it connects devices to an external bus interface, meaning address
-lines (up to 9 address lines so can only address 1KiB external memory space),
-data lines (16 bits), OE (output enable), ADV (address valid, used on some
-NOR flash memories), WE (write enable). This on top of 6 different chip selects
-(CS0 thru CS5) so that in theory 6 different devices can be connected.
-
-Apparently this bus is clocked at 64MHz. It has dedicated pins on the package
-and the bus can only come out on these pins, however if some of the pins are
-unused they can be left unconnected or remuxed to be used as GPIO or in some
-cases other orthogonal functions as well.
-
-Also CS1 and CS2 has -A and -B signals. Why they have that is unclear to me.
-
-The chip selects have the following memory range assignments. This region of
-memory is referred to as "Chip Peripheral SS FPB0" and is 168MB big.
-
-Chip Select Physical address base
-CS0 GPIO134 0x1a800000-0x1b000000 (8MB)
-CS1 GPIO39 (A) / GPIO123 (B) 0x1b000000-0x1b800000 (8MB)
-CS2 GPIO40 (A) / GPIO124 (B) 0x1b800000-0x1c000000 (8MB)
-CS3 GPIO133 0x1d000000-0x25000000 (128 MB)
-CS4 GPIO132 0x1c800000-0x1d000000 (8MB)
-CS5 GPIO131 0x1c000000-0x1c800000 (8MB)
-
-The APQ8060 Qualcomm Application Processor User Guide, 80-N7150-14 Rev. A,
-August 6, 2012 contains some incomplete documentation of the EBI2.
-
-FIXME: the manual mentions "write precharge cycles" and "precharge cycles".
-We have not been able to figure out which bit fields these correspond to
-in the hardware, or what valid values exist. The current hypothesis is that
-this is something just used on the FAST chip selects and that the SLOW
-chip selects are understood fully. There is also a "byte device enable"
-flag somewhere for 8bit memories.
-
-FIXME: The chipselects have SLOW and FAST configuration registers. It's a bit
-unclear what this means, if they are mutually exclusive or can be used
-together, or if some chip selects are hardwired to be FAST and others are SLOW
-by design.
-
-The XMEM registers are totally undocumented but could be partially decoded
-because the Cypress AN49576 Antioch Westbridge apparently has suspiciously
-similar register layout, see: http://www.cypress.com/file/105771/download
-
-Required properties:
-- compatible: should be one of:
- "qcom,msm8660-ebi2"
- "qcom,apq8060-ebi2"
-- #address-cells: should be <2>: the first cell is the chipselect,
- the second cell is the offset inside the memory range
-- #size-cells: should be <1>
-- ranges: should be set to:
- ranges = <0 0x0 0x1a800000 0x00800000>,
- <1 0x0 0x1b000000 0x00800000>,
- <2 0x0 0x1b800000 0x00800000>,
- <3 0x0 0x1d000000 0x08000000>,
- <4 0x0 0x1c800000 0x00800000>,
- <5 0x0 0x1c000000 0x00800000>;
-- reg: two ranges of registers: EBI2 config and XMEM config areas
-- reg-names: should be "ebi2", "xmem"
-- clocks: two clocks, EBI_2X and EBI
-- clock-names: should be "ebi2x", "ebi2"
-
-Optional subnodes:
-- Nodes inside the EBI2 will be considered device nodes.
-
-The following optional properties are properties that can be tagged onto
-any device subnode. We are assuming that there can be only ONE device per
-chipselect subnode, else the properties will become ambiguous.
-
-Optional properties arrays for SLOW chip selects:
-- qcom,xmem-recovery-cycles: recovery cycles is the time the memory continues to
- drive the data bus after OE is de-asserted, in order to avoid contention on
- the data bus. They are inserted when reading one CS and switching to another
- CS or read followed by write on the same CS. Valid values 0 thru 15. Minimum
- value is actually 1, so a value of 0 will still yield 1 recovery cycle.
-- qcom,xmem-write-hold-cycles: write hold cycles, these are extra cycles
- inserted after every write minimum 1. The data out is driven from the time
- WE is asserted until CS is asserted. With a hold of 1 (value = 0), the CS
- stays active for 1 extra cycle etc. Valid values 0 thru 15.
-- qcom,xmem-write-delta-cycles: initial latency for write cycles inserted for
- the first write to a page or burst memory. Valid values 0 thru 255.
-- qcom,xmem-read-delta-cycles: initial latency for read cycles inserted for the
- first read to a page or burst memory. Valid values 0 thru 255.
-- qcom,xmem-write-wait-cycles: number of wait cycles for every write access, 0=1
- cycle. Valid values 0 thru 15.
-- qcom,xmem-read-wait-cycles: number of wait cycles for every read access, 0=1
- cycle. Valid values 0 thru 15.
-
-Optional properties arrays for FAST chip selects:
-- qcom,xmem-address-hold-enable: this is a boolean property stating that we
- shall hold the address for an extra cycle to meet hold time requirements
- with ADV assertion.
-- qcom,xmem-adv-to-oe-recovery-cycles: the number of cycles elapsed before an OE
- assertion, with respect to the cycle where ADV (address valid) is asserted.
- 2 means 2 cycles between ADV and OE. Valid values 0, 1, 2 or 3.
-- qcom,xmem-read-hold-cycles: the length in cycles of the first segment of a
- read transfer. For a single read transfer this will be the time from CS
- assertion to OE assertion. Valid values 0 thru 15.
-
-
-Example:
-
-ebi2@1a100000 {
- compatible = "qcom,apq8060-ebi2";
- #address-cells = <2>;
- #size-cells = <1>;
- ranges = <0 0x0 0x1a800000 0x00800000>,
- <1 0x0 0x1b000000 0x00800000>,
- <2 0x0 0x1b800000 0x00800000>,
- <3 0x0 0x1d000000 0x08000000>,
- <4 0x0 0x1c800000 0x00800000>,
- <5 0x0 0x1c000000 0x00800000>;
- reg = <0x1a100000 0x1000>, <0x1a110000 0x1000>;
- reg-names = "ebi2", "xmem";
- clocks = <&gcc EBI2_2X_CLK>, <&gcc EBI2_CLK>;
- clock-names = "ebi2x", "ebi2";
- /* Make sure to set up the pin control for the EBI2 */
- pinctrl-names = "default";
- pinctrl-0 = <&foo_ebi2_pins>;
-
- foo-ebi2@2,0 {
- compatible = "foo";
- reg = <2 0x0 0x100>;
- (...)
- qcom,xmem-recovery-cycles = <0>;
- qcom,xmem-write-hold-cycles = <3>;
- qcom,xmem-write-delta-cycles = <31>;
- qcom,xmem-read-delta-cycles = <28>;
- qcom,xmem-write-wait-cycles = <9>;
- qcom,xmem-read-wait-cycles = <9>;
- };
-};
diff --git a/Documentation/devicetree/bindings/bus/qcom,ssbi.yaml b/Documentation/devicetree/bindings/bus/qcom,ssbi.yaml
new file mode 100644
index 000000000000..693cfa9696b5
--- /dev/null
+++ b/Documentation/devicetree/bindings/bus/qcom,ssbi.yaml
@@ -0,0 +1,63 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/bus/qcom,ssbi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Single-wire Serial Bus Interface (SSBI)
+
+description:
+ Some Qualcomm MSM devices contain a point-to-point serial bus used to
+ communicate with a limited range of devices (mostly power management
+ chips).
+
+maintainers:
+ - Andy Gross <agross@kernel.org>
+ - Bjorn Andersson <andersson@kernel.org>
+
+properties:
+ compatible:
+ const: qcom,ssbi
+
+ reg:
+ maxItems: 1
+
+ qcom,controller-type:
+ description:
+ Indicates the SSBI bus variant the controller should use to talk
+ with the slave device. The type chosen is determined by the attached
+ slave.
+ enum:
+ - ssbi
+ - ssbi2
+ - pmic-arbiter
+
+ pmic:
+ $ref: /schemas/mfd/qcom-pm8xxx.yaml#
+
+required:
+ - compatible
+ - reg
+ - qcom,controller-type
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ ssbi@c00000 {
+ compatible = "qcom,ssbi";
+ reg = <0x00c00000 0x1000>;
+ qcom,controller-type = "pmic-arbiter";
+
+ pmic {
+ compatible = "qcom,pm8821";
+ interrupt-parent = <&msmgpio>;
+ interrupts = <76 IRQ_TYPE_LEVEL_LOW>;
+ #interrupt-cells = <2>;
+ interrupt-controller;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/bus/renesas,bsc.yaml b/Documentation/devicetree/bindings/bus/renesas,bsc.yaml
index f53a37785413..ff3c78317d28 100644
--- a/Documentation/devicetree/bindings/bus/renesas,bsc.yaml
+++ b/Documentation/devicetree/bindings/bus/renesas,bsc.yaml
@@ -41,6 +41,18 @@ properties:
interrupts:
maxItems: 1
+patternProperties:
+ # All other properties should be child nodes with unit-address and 'reg'
+ "@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+ properties:
+ reg:
+ maxItems: 1
+
+ required:
+ - reg
+
required:
- reg
diff --git a/Documentation/devicetree/bindings/bus/st,stm32-etzpc.yaml b/Documentation/devicetree/bindings/bus/st,stm32-etzpc.yaml
new file mode 100644
index 000000000000..bf0af3424c9a
--- /dev/null
+++ b/Documentation/devicetree/bindings/bus/st,stm32-etzpc.yaml
@@ -0,0 +1,96 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/bus/st,stm32-etzpc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: STM32 Extended TrustZone protection controller
+
+description: |
+ The ETZPC configures TrustZone security in a SoC having bus masters and
+ devices with programmable-security attributes (securable resources).
+
+maintainers:
+ - Gatien Chevallier <gatien.chevallier@foss.st.com>
+
+select:
+ properties:
+ compatible:
+ contains:
+ const: st,stm32-etzpc
+ required:
+ - compatible
+
+properties:
+ compatible:
+ items:
+ - const: st,stm32-etzpc
+ - const: simple-bus
+
+ reg:
+ maxItems: 1
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 1
+
+ ranges: true
+
+ "#access-controller-cells":
+ const: 1
+ description:
+ Contains the firewall ID associated to the peripheral.
+
+patternProperties:
+ "@[0-9a-f]+$":
+ description: Peripherals
+ type: object
+
+ additionalProperties: true
+
+ required:
+ - access-controllers
+
+required:
+ - compatible
+ - reg
+ - "#address-cells"
+ - "#size-cells"
+ - "#access-controller-cells"
+ - ranges
+
+additionalProperties: false
+
+examples:
+ - |
+ // In this example, the usart2 device refers to rifsc as its access
+ // controller.
+ // Access rights are verified before creating devices.
+
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/stm32mp13-clks.h>
+ #include <dt-bindings/reset/stm32mp13-resets.h>
+
+ etzpc: bus@5c007000 {
+ compatible = "st,stm32-etzpc", "simple-bus";
+ reg = <0x5c007000 0x400>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ #access-controller-cells = <1>;
+ ranges;
+
+ usart2: serial@4c001000 {
+ compatible = "st,stm32h7-uart";
+ reg = <0x4c001000 0x400>;
+ interrupts-extended = <&exti 27 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&rcc USART2_K>;
+ resets = <&rcc USART2_R>;
+ wakeup-source;
+ dmas = <&dmamux1 43 0x400 0x5>,
+ <&dmamux1 44 0x400 0x1>;
+ dma-names = "rx", "tx";
+ access-controllers = <&etzpc 17>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/bus/st,stm32mp25-rifsc.yaml b/Documentation/devicetree/bindings/bus/st,stm32mp25-rifsc.yaml
new file mode 100644
index 000000000000..4d19917ad2c3
--- /dev/null
+++ b/Documentation/devicetree/bindings/bus/st,stm32mp25-rifsc.yaml
@@ -0,0 +1,109 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/bus/st,stm32mp25-rifsc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: STM32 Resource isolation framework security controller
+
+maintainers:
+ - Gatien Chevallier <gatien.chevallier@foss.st.com>
+
+description: |
+ Resource isolation framework (RIF) is a comprehensive set of hardware blocks
+ designed to enforce and manage isolation of STM32 hardware resources like
+ memory and peripherals.
+
+ The RIFSC (RIF security controller) is composed of three sets of registers,
+ each managing a specific set of hardware resources:
+ - RISC registers associated with RISUP logic (resource isolation device unit
+ for peripherals), assign all non-RIF aware peripherals to zero, one or
+ any security domains (secure, privilege, compartment).
+ - RIMC registers: associated with RIMU logic (resource isolation master
+ unit), assign all non RIF-aware bus master to one security domain by
+ setting secure, privileged and compartment information on the system bus.
+ Alternatively, the RISUP logic controlling the device port access to a
+ peripheral can assign target bus attributes to this peripheral master port
+ (supported attribute: CID).
+ - RISC registers associated with RISAL logic (resource isolation device unit
+ for address space - Lite version), assign address space subregions to one
+ security domains (secure, privilege, compartment).
+
+select:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - st,stm32mp21-rifsc
+ - st,stm32mp25-rifsc
+ required:
+ - compatible
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - st,stm32mp21-rifsc
+ - st,stm32mp25-rifsc
+ - const: simple-bus
+
+ reg:
+ maxItems: 1
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 1
+
+ ranges: true
+
+ "#access-controller-cells":
+ const: 1
+ description:
+ Contains the firewall ID associated to the peripheral.
+
+patternProperties:
+ "@[0-9a-f]+$":
+ description: Peripherals
+ type: object
+
+ additionalProperties: true
+
+ required:
+ - access-controllers
+
+required:
+ - compatible
+ - reg
+ - "#address-cells"
+ - "#size-cells"
+ - "#access-controller-cells"
+ - ranges
+
+additionalProperties: false
+
+examples:
+ - |
+ // In this example, the usart2 device refers to rifsc as its domain
+ // controller.
+ // Access rights are verified before creating devices.
+
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ rifsc: bus@42080000 {
+ compatible = "st,stm32mp25-rifsc", "simple-bus";
+ reg = <0x42080000 0x1000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ #access-controller-cells = <1>;
+ ranges;
+
+ usart2: serial@400e0000 {
+ compatible = "st,stm32h7-uart";
+ reg = <0x400e0000 0x400>;
+ interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&ck_flexgen_08>;
+ access-controllers = <&rifsc 32>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/bus/ti-sysc.yaml b/Documentation/devicetree/bindings/bus/ti-sysc.yaml
index f089634f9466..6d7bca6c138e 100644
--- a/Documentation/devicetree/bindings/bus/ti-sysc.yaml
+++ b/Documentation/devicetree/bindings/bus/ti-sysc.yaml
@@ -97,7 +97,7 @@ properties:
- enum: [ ick, fck, sys_clk ]
- items:
- const: fck
- - enum: [ ick. dbclk, osc, sys_clk, dss_clk, ahclkx ]
+ - enum: [ ick, dbclk, osc, sys_clk, dss_clk, ahclkx ]
- items:
- const: fck
- const: phy-clk
diff --git a/Documentation/devicetree/bindings/cache/andestech,ax45mp-cache.yaml b/Documentation/devicetree/bindings/cache/andestech,ax45mp-cache.yaml
new file mode 100644
index 000000000000..b135ffa4ab6b
--- /dev/null
+++ b/Documentation/devicetree/bindings/cache/andestech,ax45mp-cache.yaml
@@ -0,0 +1,103 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright (C) 2023 Renesas Electronics Corp.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/cache/andestech,ax45mp-cache.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Andestech AX45MP L2 Cache Controller
+
+maintainers:
+ - Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
+
+description:
+ A level-2 cache (L2C) is used to improve the system performance by providing
+ a large amount of cache line entries and reasonable access delays. The L2C
+ is shared between cores, and a non-inclusive non-exclusive policy is used.
+
+select:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - andestech,ax45mp-cache
+
+ required:
+ - compatible
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - andestech,qilai-ax45mp-cache
+ - renesas,r9a07g043f-ax45mp-cache
+ - const: andestech,ax45mp-cache
+ - const: cache
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ cache-line-size:
+ const: 64
+
+ cache-level:
+ const: 2
+
+ cache-sets:
+ enum: [1024, 2048]
+
+ cache-size:
+ enum: [131072, 262144, 524288, 1048576, 2097152]
+
+ cache-unified: true
+
+ next-level-cache: true
+
+additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - cache-line-size
+ - cache-level
+ - cache-sets
+ - cache-size
+ - cache-unified
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: andestech,qilai-ax45mp-cache
+
+ then:
+ properties:
+ cache-sets:
+ const: 2048
+ cache-size:
+ const: 2097152
+ else:
+ properties:
+ cache-sets:
+ const: 1024
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ cache-controller@13400000 {
+ compatible = "renesas,r9a07g043f-ax45mp-cache", "andestech,ax45mp-cache",
+ "cache";
+ reg = <0x13400000 0x100000>;
+ interrupts = <508 IRQ_TYPE_LEVEL_HIGH>;
+ cache-line-size = <64>;
+ cache-level = <2>;
+ cache-sets = <1024>;
+ cache-size = <262144>;
+ cache-unified;
+ };
diff --git a/Documentation/devicetree/bindings/cache/l2c2x0.yaml b/Documentation/devicetree/bindings/cache/l2c2x0.yaml
index d7840a5c4037..10c1a900202f 100644
--- a/Documentation/devicetree/bindings/cache/l2c2x0.yaml
+++ b/Documentation/devicetree/bindings/cache/l2c2x0.yaml
@@ -100,9 +100,8 @@ properties:
filter. Addresses in the filter window are directed to the M1 port. Other
addresses will go to the M0 port.
$ref: /schemas/types.yaml#/definitions/uint32-array
- items:
- minItems: 2
- maxItems: 2
+ minItems: 2
+ maxItems: 2
arm,io-coherent:
description: indicates that the system is operating in an hardware
diff --git a/Documentation/devicetree/bindings/cache/marvell,feroceon-cache.txt b/Documentation/devicetree/bindings/cache/marvell,feroceon-cache.txt
deleted file mode 100644
index 0d244b999d10..000000000000
--- a/Documentation/devicetree/bindings/cache/marvell,feroceon-cache.txt
+++ /dev/null
@@ -1,16 +0,0 @@
-* Marvell Feroceon Cache
-
-Required properties:
-- compatible : Should be either "marvell,feroceon-cache" or
- "marvell,kirkwood-cache".
-
-Optional properties:
-- reg : Address of the L2 cache control register. Mandatory for
- "marvell,kirkwood-cache", not used by "marvell,feroceon-cache"
-
-
-Example:
- l2: l2-cache@20128 {
- compatible = "marvell,kirkwood-cache";
- reg = <0x20128 0x4>;
- };
diff --git a/Documentation/devicetree/bindings/cache/marvell,kirkwood-cache.yaml b/Documentation/devicetree/bindings/cache/marvell,kirkwood-cache.yaml
new file mode 100644
index 000000000000..2bfa3c29f6a6
--- /dev/null
+++ b/Documentation/devicetree/bindings/cache/marvell,kirkwood-cache.yaml
@@ -0,0 +1,45 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/cache/marvell,kirkwood-cache.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Marvell Feroceon/Kirkwood Cache
+
+maintainers:
+ - Andrew Lunn <andrew@lunn.ch>
+ - Gregory Clement <gregory.clement@bootlin.com>
+
+properties:
+ compatible:
+ enum:
+ - marvell,feroceon-cache
+ - marvell,kirkwood-cache
+
+ reg:
+ maxItems: 1
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: marvell,kirkwood-cache
+ then:
+ required:
+ - reg
+ else:
+ properties:
+ reg: false
+
+required:
+ - compatible
+
+additionalProperties: false
+
+examples:
+ - |
+ l2-cache@20128 {
+ compatible = "marvell,kirkwood-cache";
+ reg = <0x20128 0x4>;
+ };
diff --git a/Documentation/devicetree/bindings/cache/marvell,tauros2-cache.txt b/Documentation/devicetree/bindings/cache/marvell,tauros2-cache.txt
deleted file mode 100644
index 31af1cbb60bd..000000000000
--- a/Documentation/devicetree/bindings/cache/marvell,tauros2-cache.txt
+++ /dev/null
@@ -1,17 +0,0 @@
-* Marvell Tauros2 Cache
-
-Required properties:
-- compatible : Should be "marvell,tauros2-cache".
-- marvell,tauros2-cache-features : Specify the features supported for the
- tauros2 cache.
- The features including
- CACHE_TAUROS2_PREFETCH_ON (1 << 0)
- CACHE_TAUROS2_LINEFILL_BURST8 (1 << 1)
- The definition can be found at
- arch/arm/include/asm/hardware/cache-tauros2.h
-
-Example:
- L2: l2-cache {
- compatible = "marvell,tauros2-cache";
- marvell,tauros2-cache-features = <0x3>;
- };
diff --git a/Documentation/devicetree/bindings/cache/marvell,tauros2-cache.yaml b/Documentation/devicetree/bindings/cache/marvell,tauros2-cache.yaml
new file mode 100644
index 000000000000..9f7f0d031631
--- /dev/null
+++ b/Documentation/devicetree/bindings/cache/marvell,tauros2-cache.yaml
@@ -0,0 +1,39 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/cache/marvell,tauros2-cache.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Marvell Tauros2 Cache
+
+maintainers:
+ - Andrew Lunn <andrew@lunn.ch>
+ - Gregory Clement <gregory.clement@bootlin.com>
+
+properties:
+ compatible:
+ const: marvell,tauros2-cache
+
+ marvell,tauros2-cache-features:
+ description: >
+ Specify the features supported for the tauros2 cache. The features include:
+
+ - CACHE_TAUROS2_PREFETCH_ON (1 << 0)
+ - CACHE_TAUROS2_LINEFILL_BURST8 (1 << 1)
+
+ The definition can be found at arch/arm/include/asm/hardware/cache-tauros2.h
+ $ref: /schemas/types.yaml#/definitions/uint32
+ maximum: 0x3
+
+required:
+ - compatible
+ - marvell,tauros2-cache-features
+
+additionalProperties: false
+
+examples:
+ - |
+ l2-cache {
+ compatible = "marvell,tauros2-cache";
+ marvell,tauros2-cache-features = <0x3>;
+ };
diff --git a/Documentation/devicetree/bindings/cache/qcom,llcc.yaml b/Documentation/devicetree/bindings/cache/qcom,llcc.yaml
index d8b91944180a..a620a2ff5c56 100644
--- a/Documentation/devicetree/bindings/cache/qcom,llcc.yaml
+++ b/Documentation/devicetree/bindings/cache/qcom,llcc.yaml
@@ -20,6 +20,14 @@ description: |
properties:
compatible:
enum:
+ - qcom,ipq5424-llcc
+ - qcom,kaanapali-llcc
+ - qcom,qcs615-llcc
+ - qcom,qcs8300-llcc
+ - qcom,qdu1000-llcc
+ - qcom,sa8775p-llcc
+ - qcom,sar1130p-llcc
+ - qcom,sar2130p-llcc
- qcom,sc7180-llcc
- qcom,sc7280-llcc
- qcom,sc8180x-llcc
@@ -32,18 +40,29 @@ properties:
- qcom,sm8350-llcc
- qcom,sm8450-llcc
- qcom,sm8550-llcc
+ - qcom,sm8650-llcc
+ - qcom,sm8750-llcc
+ - qcom,x1e80100-llcc
reg:
- minItems: 2
- maxItems: 9
+ minItems: 1
+ maxItems: 10
reg-names:
- minItems: 2
- maxItems: 9
+ minItems: 1
+ maxItems: 10
interrupts:
maxItems: 1
+ nvmem-cells:
+ items:
+ - description: Reference to an nvmem node for multi channel DDR
+
+ nvmem-cell-names:
+ items:
+ - const: multi-chan-ddr
+
required:
- compatible
- reg
@@ -55,6 +74,48 @@ allOf:
compatible:
contains:
enum:
+ - qcom,ipq5424-llcc
+ then:
+ properties:
+ reg:
+ items:
+ - description: LLCC0 base register region
+ reg-names:
+ items:
+ - const: llcc0_base
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,sar1130p-llcc
+ - qcom,sar2130p-llcc
+ then:
+ properties:
+ reg:
+ items:
+ - description: LLCC0 base register region
+ - description: LLCC1 base register region
+ - description: LLCC broadcast OR register region
+ - description: LLCC broadcast AND register region
+ - description: LLCC scratchpad broadcast OR register region
+ - description: LLCC scratchpad broadcast AND register region
+ reg-names:
+ items:
+ - const: llcc0_base
+ - const: llcc1_base
+ - const: llcc_broadcast_base
+ - const: llcc_broadcast_and_base
+ - const: llcc_scratchpad_broadcast_base
+ - const: llcc_scratchpad_broadcast_and_base
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,qcs615-llcc
- qcom,sc7180-llcc
- qcom,sm6350-llcc
then:
@@ -73,6 +134,33 @@ allOf:
compatible:
contains:
enum:
+ - qcom,sa8775p-llcc
+ then:
+ properties:
+ reg:
+ items:
+ - description: LLCC0 base register region
+ - description: LLCC1 base register region
+ - description: LLCC2 base register region
+ - description: LLCC3 base register region
+ - description: LLCC4 base register region
+ - description: LLCC5 base register region
+ - description: LLCC broadcast base register region
+ reg-names:
+ items:
+ - const: llcc0_base
+ - const: llcc1_base
+ - const: llcc2_base
+ - const: llcc3_base
+ - const: llcc4_base
+ - const: llcc5_base
+ - const: llcc_broadcast_base
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
- qcom,sc7280-llcc
then:
properties:
@@ -92,6 +180,7 @@ allOf:
compatible:
contains:
enum:
+ - qcom,qdu1000-llcc
- qcom,sc8180x-llcc
- qcom,sc8280xp-llcc
then:
@@ -124,11 +213,44 @@ allOf:
compatible:
contains:
enum:
+ - qcom,x1e80100-llcc
+ then:
+ properties:
+ reg:
+ items:
+ - description: LLCC0 base register region
+ - description: LLCC1 base register region
+ - description: LLCC2 base register region
+ - description: LLCC3 base register region
+ - description: LLCC4 base register region
+ - description: LLCC5 base register region
+ - description: LLCC6 base register region
+ - description: LLCC7 base register region
+ - description: LLCC broadcast base register region
+ - description: LLCC broadcast AND register region
+ reg-names:
+ items:
+ - const: llcc0_base
+ - const: llcc1_base
+ - const: llcc2_base
+ - const: llcc3_base
+ - const: llcc4_base
+ - const: llcc5_base
+ - const: llcc6_base
+ - const: llcc7_base
+ - const: llcc_broadcast_base
+ - const: llcc_broadcast_and_base
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,qcs8300-llcc
- qcom,sdm845-llcc
- qcom,sm8150-llcc
- qcom,sm8250-llcc
- qcom,sm8350-llcc
- - qcom,sm8450-llcc
then:
properties:
reg:
@@ -146,6 +268,35 @@ allOf:
- const: llcc3_base
- const: llcc_broadcast_base
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,kaanapali-llcc
+ - qcom,sm8450-llcc
+ - qcom,sm8550-llcc
+ - qcom,sm8650-llcc
+ - qcom,sm8750-llcc
+ then:
+ properties:
+ reg:
+ items:
+ - description: LLCC0 base register region
+ - description: LLCC1 base register region
+ - description: LLCC2 base register region
+ - description: LLCC3 base register region
+ - description: LLCC broadcast OR register region
+ - description: LLCC broadcast AND register region
+ reg-names:
+ items:
+ - const: llcc0_base
+ - const: llcc1_base
+ - const: llcc2_base
+ - const: llcc3_base
+ - const: llcc_broadcast_base
+ - const: llcc_broadcast_and_base
+
additionalProperties: false
examples:
diff --git a/Documentation/devicetree/bindings/cache/sifive,ccache0.yaml b/Documentation/devicetree/bindings/cache/sifive,ccache0.yaml
index 8a6a78e1a7ab..c0e5ebb1fa4c 100644
--- a/Documentation/devicetree/bindings/cache/sifive,ccache0.yaml
+++ b/Documentation/devicetree/bindings/cache/sifive,ccache0.yaml
@@ -38,13 +38,21 @@ properties:
- sifive,fu740-c000-ccache
- const: cache
- items:
- - const: starfive,jh7110-ccache
+ - enum:
+ - eswin,eic7700-l3-cache
+ - starfive,jh7100-ccache
+ - starfive,jh7110-ccache
- const: sifive,ccache0
- const: cache
- items:
- const: microchip,mpfs-ccache
- const: sifive,fu540-c000-ccache
- const: cache
+ - items:
+ - const: microchip,pic64gx-ccache
+ - const: microchip,mpfs-ccache
+ - const: sifive,fu540-c000-ccache
+ - const: cache
cache-block-size:
const: 64
@@ -53,10 +61,10 @@ properties:
enum: [2, 3]
cache-sets:
- enum: [1024, 2048]
+ enum: [1024, 2048, 4096]
cache-size:
- const: 2097152
+ enum: [2097152, 4194304]
cache-unified: true
@@ -87,7 +95,9 @@ allOf:
compatible:
contains:
enum:
+ - eswin,eic7700-l3-cache
- sifive,fu740-c000-ccache
+ - starfive,jh7100-ccache
- starfive,jh7110-ccache
- microchip,mpfs-ccache
@@ -109,8 +119,25 @@ allOf:
properties:
compatible:
contains:
+ const: eswin,eic7700-l3-cache
+
+ then:
+ properties:
+ cache-size:
+ const: 4194304
+
+ else:
+ properties:
+ cache-size:
+ const: 2097152
+
+ - if:
+ properties:
+ compatible:
+ contains:
enum:
- sifive,fu740-c000-ccache
+ - starfive,jh7100-ccache
- starfive,jh7110-ccache
then:
@@ -118,7 +145,15 @@ allOf:
cache-sets:
const: 2048
- else:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - microchip,mpfs-ccache
+ - sifive,fu540-c000-ccache
+
+ then:
properties:
cache-sets:
const: 1024
@@ -127,6 +162,18 @@ allOf:
properties:
compatible:
contains:
+ enum:
+ - eswin,eic7700-l3-cache
+
+ then:
+ properties:
+ cache-sets:
+ const: 4096
+
+ - if:
+ properties:
+ compatible:
+ contains:
const: sifive,ccache0
then:
diff --git a/Documentation/devicetree/bindings/cache/starfive,jh8100-starlink-cache.yaml b/Documentation/devicetree/bindings/cache/starfive,jh8100-starlink-cache.yaml
new file mode 100644
index 000000000000..6d61098e388b
--- /dev/null
+++ b/Documentation/devicetree/bindings/cache/starfive,jh8100-starlink-cache.yaml
@@ -0,0 +1,66 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/cache/starfive,jh8100-starlink-cache.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: StarFive StarLink Cache Controller
+
+maintainers:
+ - Joshua Yeong <joshua.yeong@starfivetech.com>
+
+description:
+ StarFive's StarLink Cache Controller manages the L3 cache shared between
+ clusters of CPU cores. The cache driver enables RISC-V non-standard cache
+ management as an alternative to instructions in the RISC-V Zicbom extension.
+
+allOf:
+ - $ref: /schemas/cache-controller.yaml#
+
+# We need a select here so we don't match all nodes with 'cache'
+select:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - starfive,jh8100-starlink-cache
+
+ required:
+ - compatible
+
+properties:
+ compatible:
+ items:
+ - const: starfive,jh8100-starlink-cache
+ - const: cache
+
+ reg:
+ maxItems: 1
+
+unevaluatedProperties: false
+
+required:
+ - compatible
+ - reg
+ - cache-block-size
+ - cache-level
+ - cache-sets
+ - cache-size
+ - cache-unified
+
+examples:
+ - |
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ cache-controller@15000000 {
+ compatible = "starfive,jh8100-starlink-cache", "cache";
+ reg = <0x0 0x15000000 0x0 0x278>;
+ cache-block-size = <64>;
+ cache-level = <3>;
+ cache-sets = <8192>;
+ cache-size = <0x400000>;
+ cache-unified;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/chrome/google,cros-ec-typec.yaml b/Documentation/devicetree/bindings/chrome/google,cros-ec-typec.yaml
index 3b0548c34791..9f9816fbecbc 100644
--- a/Documentation/devicetree/bindings/chrome/google,cros-ec-typec.yaml
+++ b/Documentation/devicetree/bindings/chrome/google,cros-ec-typec.yaml
@@ -29,10 +29,8 @@ properties:
patternProperties:
'^connector@[0-9a-f]+$':
$ref: /schemas/connector/usb-connector.yaml#
- unevaluatedProperties: false
- properties:
- reg:
- maxItems: 1
+ required:
+ - reg
required:
- compatible
diff --git a/Documentation/devicetree/bindings/chrome/google,cros-kbd-led-backlight.yaml b/Documentation/devicetree/bindings/chrome/google,cros-kbd-led-backlight.yaml
deleted file mode 100644
index c94ab8f9e0b8..000000000000
--- a/Documentation/devicetree/bindings/chrome/google,cros-kbd-led-backlight.yaml
+++ /dev/null
@@ -1,36 +0,0 @@
-# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
-%YAML 1.2
----
-$id: http://devicetree.org/schemas/chrome/google,cros-kbd-led-backlight.yaml#
-$schema: http://devicetree.org/meta-schemas/core.yaml#
-
-title: ChromeOS keyboard backlight LED driver.
-
-maintainers:
- - Tzung-Bi Shih <tzungbi@kernel.org>
-
-properties:
- compatible:
- const: google,cros-kbd-led-backlight
-
-required:
- - compatible
-
-additionalProperties: false
-
-examples:
- - |
- spi {
- #address-cells = <1>;
- #size-cells = <0>;
-
- cros_ec: ec@0 {
- compatible = "google,cros-ec-spi";
- reg = <0>;
- interrupts = <15 0>;
-
- kbd-led-backlight {
- compatible = "google,cros-kbd-led-backlight";
- };
- };
- };
diff --git a/Documentation/devicetree/bindings/clock/actions,owl-cmu.txt b/Documentation/devicetree/bindings/clock/actions,owl-cmu.txt
deleted file mode 100644
index d19885b7c73f..000000000000
--- a/Documentation/devicetree/bindings/clock/actions,owl-cmu.txt
+++ /dev/null
@@ -1,52 +0,0 @@
-* Actions Semi Owl Clock Management Unit (CMU)
-
-The Actions Semi Owl Clock Management Unit generates and supplies clock
-to various controllers within the SoC. The clock binding described here is
-applicable to S900, S700 and S500 SoC's.
-
-Required Properties:
-
-- compatible: should be one of the following,
- "actions,s900-cmu"
- "actions,s700-cmu"
- "actions,s500-cmu"
-- reg: physical base address of the controller and length of memory mapped
- region.
-- clocks: Reference to the parent clocks ("hosc", "losc")
-- #clock-cells: should be 1.
-- #reset-cells: should be 1.
-
-Each clock is assigned an identifier, and client nodes can use this identifier
-to specify the clock which they consume.
-
-All available clocks are defined as preprocessor macros in corresponding
-dt-bindings/clock/actions,s900-cmu.h or actions,s700-cmu.h or
-actions,s500-cmu.h header and can be used in device tree sources.
-
-External clocks:
-
-The hosc clock used as input for the plls is generated outside the SoC. It is
-expected that it is defined using standard clock bindings as "hosc".
-
-Actions Semi S900 CMU also requires one more clock:
- - "losc" - internal low frequency oscillator
-
-Example: Clock Management Unit node:
-
- cmu: clock-controller@e0160000 {
- compatible = "actions,s900-cmu";
- reg = <0x0 0xe0160000 0x0 0x1000>;
- clocks = <&hosc>, <&losc>;
- #clock-cells = <1>;
- #reset-cells = <1>;
- };
-
-Example: UART controller node that consumes clock generated by the clock
-management unit:
-
- uart: serial@e012a000 {
- compatible = "actions,s900-uart", "actions,owl-uart";
- reg = <0x0 0xe012a000 0x0 0x2000>;
- interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&cmu CLK_UART5>;
- };
diff --git a/Documentation/devicetree/bindings/clock/actions,owl-cmu.yaml b/Documentation/devicetree/bindings/clock/actions,owl-cmu.yaml
new file mode 100644
index 000000000000..28396441bc98
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/actions,owl-cmu.yaml
@@ -0,0 +1,60 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/actions,owl-cmu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Actions Semi Owl Clock Management Unit (CMU)
+
+maintainers:
+ - Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+
+description: |
+ The Actions Semi Owl Clock Management Unit generates and supplies clock
+ to various controllers within the SoC.
+
+ See also:
+ include/dt-bindings/clock/actions,s500-cmu.h
+ include/dt-bindings/clock/actions,s700-cmu.h
+ include/dt-bindings/clock/actions,s900-cmu.h
+
+properties:
+ compatible:
+ enum:
+ - actions,s500-cmu
+ - actions,s700-cmu
+ - actions,s900-cmu
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: Host oscillator source
+ - description: Internal low frequency oscillator source
+
+ "#clock-cells":
+ const: 1
+
+ "#reset-cells":
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - "#clock-cells"
+ - "#reset-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-controller@e0160000 {
+ compatible = "actions,s900-cmu";
+ reg = <0xe0160000 0x1000>;
+ clocks = <&hosc>, <&losc>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/adi,axi-clkgen.yaml b/Documentation/devicetree/bindings/clock/adi,axi-clkgen.yaml
index 5e942bccf277..6eea1a41150a 100644
--- a/Documentation/devicetree/bindings/clock/adi,axi-clkgen.yaml
+++ b/Documentation/devicetree/bindings/clock/adi,axi-clkgen.yaml
@@ -26,9 +26,24 @@ properties:
description:
Specifies the reference clock(s) from which the output frequency is
derived. This must either reference one clock if only the first clock
- input is connected or two if both clock inputs are connected.
- minItems: 1
- maxItems: 2
+ input is connected or two if both clock inputs are connected. The last
+ clock is the AXI bus clock that needs to be enabled so we can access the
+ core registers.
+ minItems: 2
+ maxItems: 3
+
+ clock-names:
+ oneOf:
+ - items:
+ - const: clkin1
+ - const: s_axi_aclk
+ - items:
+ - const: clkin1
+ - const: clkin2
+ - const: s_axi_aclk
+
+ clock-output-names:
+ maxItems: 1
'#clock-cells':
const: 0
@@ -40,6 +55,7 @@ required:
- compatible
- reg
- clocks
+ - clock-names
- '#clock-cells'
additionalProperties: false
@@ -50,5 +66,7 @@ examples:
compatible = "adi,axi-clkgen-2.00.a";
#clock-cells = <0>;
reg = <0xff000000 0x1000>;
- clocks = <&osc 1>;
+ clocks = <&osc 1>, <&clkc 15>;
+ clock-names = "clkin1", "s_axi_aclk";
+ clock-output-names = "spi_sclk";
};
diff --git a/Documentation/devicetree/bindings/clock/airoha,en7523-scu.yaml b/Documentation/devicetree/bindings/clock/airoha,en7523-scu.yaml
index 79b0752faa91..a8471367175b 100644
--- a/Documentation/devicetree/bindings/clock/airoha,en7523-scu.yaml
+++ b/Documentation/devicetree/bindings/clock/airoha,en7523-scu.yaml
@@ -29,10 +29,15 @@ description: |
properties:
compatible:
items:
- - const: airoha,en7523-scu
+ - enum:
+ - airoha,en7523-scu
+ - airoha,en7581-scu
reg:
- maxItems: 2
+ items:
+ - description: scu base address
+ - description: misc scu base address
+ minItems: 1
"#clock-cells":
description:
@@ -40,11 +45,34 @@ properties:
clocks.
const: 1
+ '#reset-cells':
+ description: ID of the controller reset line
+ const: 1
+
required:
- compatible
- reg
- '#clock-cells'
+allOf:
+ - if:
+ properties:
+ compatible:
+ const: airoha,en7523-scu
+ then:
+ properties:
+ reg:
+ minItems: 2
+
+ - if:
+ properties:
+ compatible:
+ const: airoha,en7581-scu
+ then:
+ properties:
+ reg:
+ maxItems: 1
+
additionalProperties: false
examples:
@@ -55,4 +83,18 @@ examples:
reg = <0x1fa20000 0x400>,
<0x1fb00000 0x1000>;
#clock-cells = <1>;
+ #reset-cells = <1>;
+ };
+
+ - |
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ scuclk: clock-controller@1fb00000 {
+ compatible = "airoha,en7581-scu";
+ reg = <0x0 0x1fb00000 0x0 0x970>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
};
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-gates-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-gates-clk.yaml
index c4714d0fbe07..e588a7e8f260 100644
--- a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-gates-clk.yaml
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-gates-clk.yaml
@@ -132,7 +132,6 @@ examples:
"ahb_mp", "ahb_mali400";
};
-
- |
clk@1c20068 {
#clock-cells = <1>;
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-osc-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-osc-clk.yaml
index 52a7b6e7124c..0052bf1e8a6b 100644
--- a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-osc-clk.yaml
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-osc-clk.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/clock/allwinner,sun4i-a10-osc-clk.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 Gatable Oscillator Clock
+title: Allwinner A10 Gateable Oscillator Clock
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun55i-a523-ccu.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun55i-a523-ccu.yaml
new file mode 100644
index 000000000000..58be701a720e
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun55i-a523-ccu.yaml
@@ -0,0 +1,136 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/allwinner,sun55i-a523-ccu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A523 Clock Control Unit
+
+maintainers:
+ - Andre Przywara <andre.przywara@arm.com>
+
+properties:
+ "#clock-cells":
+ const: 1
+
+ "#reset-cells":
+ const: 1
+
+ compatible:
+ enum:
+ - allwinner,sun55i-a523-ccu
+ - allwinner,sun55i-a523-mcu-ccu
+ - allwinner,sun55i-a523-r-ccu
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ minItems: 4
+ maxItems: 9
+
+ clock-names:
+ minItems: 4
+ maxItems: 9
+
+required:
+ - "#clock-cells"
+ - "#reset-cells"
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ enum:
+ - allwinner,sun55i-a523-ccu
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: High Frequency Oscillator (usually at 24MHz)
+ - description: Low Frequency Oscillator (usually at 32kHz)
+ - description: Internal Oscillator
+ - description: Low Frequency Oscillator fanout
+
+ clock-names:
+ items:
+ - const: hosc
+ - const: losc
+ - const: iosc
+ - const: losc-fanout
+
+ - if:
+ properties:
+ compatible:
+ enum:
+ - allwinner,sun55i-a523-mcu-ccu
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: High Frequency Oscillator (usually at 24MHz)
+ - description: Low Frequency Oscillator (usually at 32kHz)
+ - description: Internal Oscillator
+ - description: Audio PLL (4x)
+ - description: Peripherals PLL 0 (300 MHz output)
+ - description: DSP module clock
+ - description: MBUS clock
+ - description: PRCM AHB clock
+ - description: PRCM APB0 clock
+
+ clock-names:
+ items:
+ - const: hosc
+ - const: losc
+ - const: iosc
+ - const: pll-audio0-4x
+ - const: pll-periph0-300m
+ - const: dsp
+ - const: mbus
+ - const: r-ahb
+ - const: r-apb0
+
+ - if:
+ properties:
+ compatible:
+ enum:
+ - allwinner,sun55i-a523-r-ccu
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: High Frequency Oscillator (usually at 24MHz)
+ - description: Low Frequency Oscillator (usually at 32kHz)
+ - description: Internal Oscillator
+ - description: Peripherals PLL
+ - description: Audio PLL
+
+ clock-names:
+ items:
+ - const: hosc
+ - const: losc
+ - const: iosc
+ - const: pll-periph
+ - const: pll-audio
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-controller@2001000 {
+ compatible = "allwinner,sun55i-a523-ccu";
+ reg = <0x02001000 0x1000>;
+ clocks = <&osc24M>, <&osc32k>, <&iosc>, <&r_ccu 1>;
+ clock-names = "hosc", "losc", "iosc", "losc-fanout";
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun8i-a83t-de2-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun8i-a83t-de2-clk.yaml
index 70369bd633e4..7fcd55d468d4 100644
--- a/Documentation/devicetree/bindings/clock/allwinner,sun8i-a83t-de2-clk.yaml
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun8i-a83t-de2-clk.yaml
@@ -25,6 +25,7 @@ properties:
- const: allwinner,sun50i-a64-de2-clk
- const: allwinner,sun50i-h5-de2-clk
- const: allwinner,sun50i-h6-de3-clk
+ - const: allwinner,sun50i-h616-de33-clk
- items:
- const: allwinner,sun8i-r40-de2-clk
- const: allwinner,sun8i-h3-de2-clk
diff --git a/Documentation/devicetree/bindings/clock/alphascale,acc.txt b/Documentation/devicetree/bindings/clock/alphascale,acc.txt
deleted file mode 100644
index b3205b21c9d0..000000000000
--- a/Documentation/devicetree/bindings/clock/alphascale,acc.txt
+++ /dev/null
@@ -1,114 +0,0 @@
-Alphascale Clock Controller
-
-The ACC (Alphascale Clock Controller) is responsible of choising proper
-clock source, setting deviders and clock gates.
-
-Required properties for the ACC node:
- - compatible: must be "alphascale,asm9260-clock-controller"
- - reg: must contain the ACC register base and size
- - #clock-cells : shall be set to 1.
-
-Simple one-cell clock specifier format is used, where the only cell is used
-as an index of the clock inside the provider.
-It is encouraged to use dt-binding for clock index definitions. SoC specific
-dt-binding should be included to the device tree descriptor. For example
-Alphascale ASM9260:
-#include <dt-bindings/clock/alphascale,asm9260.h>
-
-This binding contains two types of clock providers:
- _AHB_ - AHB gate;
- _SYS_ - adjustable clock source. Not all peripheral have _SYS_ clock provider.
-All clock specific details can be found in the SoC documentation.
-CLKID_AHB_ROM 0
-CLKID_AHB_RAM 1
-CLKID_AHB_GPIO 2
-CLKID_AHB_MAC 3
-CLKID_AHB_EMI 4
-CLKID_AHB_USB0 5
-CLKID_AHB_USB1 6
-CLKID_AHB_DMA0 7
-CLKID_AHB_DMA1 8
-CLKID_AHB_UART0 9
-CLKID_AHB_UART1 10
-CLKID_AHB_UART2 11
-CLKID_AHB_UART3 12
-CLKID_AHB_UART4 13
-CLKID_AHB_UART5 14
-CLKID_AHB_UART6 15
-CLKID_AHB_UART7 16
-CLKID_AHB_UART8 17
-CLKID_AHB_UART9 18
-CLKID_AHB_I2S0 19
-CLKID_AHB_I2C0 20
-CLKID_AHB_I2C1 21
-CLKID_AHB_SSP0 22
-CLKID_AHB_IOCONFIG 23
-CLKID_AHB_WDT 24
-CLKID_AHB_CAN0 25
-CLKID_AHB_CAN1 26
-CLKID_AHB_MPWM 27
-CLKID_AHB_SPI0 28
-CLKID_AHB_SPI1 29
-CLKID_AHB_QEI 30
-CLKID_AHB_QUADSPI0 31
-CLKID_AHB_CAMIF 32
-CLKID_AHB_LCDIF 33
-CLKID_AHB_TIMER0 34
-CLKID_AHB_TIMER1 35
-CLKID_AHB_TIMER2 36
-CLKID_AHB_TIMER3 37
-CLKID_AHB_IRQ 38
-CLKID_AHB_RTC 39
-CLKID_AHB_NAND 40
-CLKID_AHB_ADC0 41
-CLKID_AHB_LED 42
-CLKID_AHB_DAC0 43
-CLKID_AHB_LCD 44
-CLKID_AHB_I2S1 45
-CLKID_AHB_MAC1 46
-
-CLKID_SYS_CPU 47
-CLKID_SYS_AHB 48
-CLKID_SYS_I2S0M 49
-CLKID_SYS_I2S0S 50
-CLKID_SYS_I2S1M 51
-CLKID_SYS_I2S1S 52
-CLKID_SYS_UART0 53
-CLKID_SYS_UART1 54
-CLKID_SYS_UART2 55
-CLKID_SYS_UART3 56
-CLKID_SYS_UART4 56
-CLKID_SYS_UART5 57
-CLKID_SYS_UART6 58
-CLKID_SYS_UART7 59
-CLKID_SYS_UART8 60
-CLKID_SYS_UART9 61
-CLKID_SYS_SPI0 62
-CLKID_SYS_SPI1 63
-CLKID_SYS_QUADSPI 64
-CLKID_SYS_SSP0 65
-CLKID_SYS_NAND 66
-CLKID_SYS_TRACE 67
-CLKID_SYS_CAMM 68
-CLKID_SYS_WDT 69
-CLKID_SYS_CLKOUT 70
-CLKID_SYS_MAC 71
-CLKID_SYS_LCD 72
-CLKID_SYS_ADCANA 73
-
-Example of clock consumer with _SYS_ and _AHB_ sinks.
-uart4: serial@80010000 {
- compatible = "alphascale,asm9260-uart";
- reg = <0x80010000 0x4000>;
- clocks = <&acc CLKID_SYS_UART4>, <&acc CLKID_AHB_UART4>;
- interrupts = <19>;
-};
-
-Clock consumer with only one, _AHB_ sink.
-timer0: timer@80088000 {
- compatible = "alphascale,asm9260-timer";
- reg = <0x80088000 0x4000>;
- clocks = <&acc CLKID_AHB_TIMER0>;
- interrupts = <29>;
-};
-
diff --git a/Documentation/devicetree/bindings/clock/alphascale,asm9260-clock-controller.yaml b/Documentation/devicetree/bindings/clock/alphascale,asm9260-clock-controller.yaml
new file mode 100644
index 000000000000..1caad419ce9d
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/alphascale,asm9260-clock-controller.yaml
@@ -0,0 +1,49 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/alphascale,asm9260-clock-controller.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Alphascale Clock Controller
+
+maintainers:
+ - Oleksij Rempel <linux@rempel-privat.de>
+
+description: |
+ The ACC (Alphascale Clock Controller) is responsible for choosing proper
+ clock source, setting dividers and clock gates.
+
+ Simple one-cell clock specifier format is used, where the only cell is used
+ as an index of the clock inside the provider.
+ It is encouraged to use dt-binding for clock index definitions. SoC specific
+ dt-binding should be included to the device tree descriptor. For example
+ Alphascale ASM9260:
+
+ #include <dt-bindings/clock/alphascale,asm9260.h>
+
+ This binding contains two types of clock providers:
+
+ _AHB_ - AHB gate;
+ _SYS_ - adjustable clock source. Not all peripheral have _SYS_ clock provider.
+
+ All clock specific details can be found in the SoC documentation.
+
+properties:
+ compatible:
+ const: alphascale,asm9260-clock-controller
+
+ reg:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 1
+
+ clocks:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - '#clock-cells'
+
+additionalProperties: false
diff --git a/Documentation/devicetree/bindings/clock/altr_socfpga.txt b/Documentation/devicetree/bindings/clock/altr_socfpga.txt
deleted file mode 100644
index f72e80e0dade..000000000000
--- a/Documentation/devicetree/bindings/clock/altr_socfpga.txt
+++ /dev/null
@@ -1,30 +0,0 @@
-Device Tree Clock bindings for Altera's SoCFPGA platform
-
-This binding uses the common clock binding[1].
-
-[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
-
-Required properties:
-- compatible : shall be one of the following:
- "altr,socfpga-pll-clock" - for a PLL clock
- "altr,socfpga-perip-clock" - The peripheral clock divided from the
- PLL clock.
- "altr,socfpga-gate-clk" - Clocks that directly feed peripherals and
- can get gated.
-
-- reg : shall be the control register offset from CLOCK_MANAGER's base for the clock.
-- clocks : shall be the input parent clock phandle for the clock. This is
- either an oscillator or a pll output.
-- #clock-cells : from common clock binding, shall be set to 0.
-
-Optional properties:
-- fixed-divider : If clocks have a fixed divider value, use this property.
-- clk-gate : For "socfpga-gate-clk", clk-gate contains the gating register
- and the bit index.
-- div-reg : For "socfpga-gate-clk" and "socfpga-periph-clock", div-reg contains
- the divider register, bit shift, and width.
-- clk-phase : For the sdmmc_clk, contains the value of the clock phase that controls
- the SDMMC CIU clock. The first value is the clk_sample(smpsel), and the second
- value is the cclk_in_drv(drvsel). The clk-phase is used to enable the correct
- hold/delay times that is needed for the SD/MMC CIU clock. The values of both
- can be 0-315 degrees, in 45 degree increments.
diff --git a/Documentation/devicetree/bindings/clock/amlogic,a1-peripherals-clkc.yaml b/Documentation/devicetree/bindings/clock/amlogic,a1-peripherals-clkc.yaml
new file mode 100644
index 000000000000..2568ad7dd0ac
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/amlogic,a1-peripherals-clkc.yaml
@@ -0,0 +1,78 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/amlogic,a1-peripherals-clkc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amlogic A1 Peripherals Clock Control Unit
+
+maintainers:
+ - Neil Armstrong <neil.armstrong@linaro.org>
+ - Jerome Brunet <jbrunet@baylibre.com>
+ - Jian Hu <jian.hu@jian.hu.com>
+ - Dmitry Rokosov <ddrokosov@sberdevices.ru>
+
+properties:
+ compatible:
+ const: amlogic,a1-peripherals-clkc
+
+ '#clock-cells':
+ const: 1
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: input fixed pll div2
+ - description: input fixed pll div3
+ - description: input fixed pll div5
+ - description: input fixed pll div7
+ - description: input hifi pll
+ - description: input oscillator (usually at 24MHz)
+ - description: input sys pll
+ minItems: 6 # sys_pll is optional
+
+ clock-names:
+ items:
+ - const: fclk_div2
+ - const: fclk_div3
+ - const: fclk_div5
+ - const: fclk_div7
+ - const: hifi_pll
+ - const: xtal
+ - const: sys_pll
+ minItems: 6 # sys_pll is optional
+
+required:
+ - compatible
+ - '#clock-cells'
+ - reg
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/amlogic,a1-pll-clkc.h>
+ apb {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ clock-controller@800 {
+ compatible = "amlogic,a1-peripherals-clkc";
+ reg = <0 0x800 0 0x104>;
+ #clock-cells = <1>;
+ clocks = <&clkc_pll CLKID_FCLK_DIV2>,
+ <&clkc_pll CLKID_FCLK_DIV3>,
+ <&clkc_pll CLKID_FCLK_DIV5>,
+ <&clkc_pll CLKID_FCLK_DIV7>,
+ <&clkc_pll CLKID_HIFI_PLL>,
+ <&xtal>,
+ <&clkc_pll CLKID_SYS_PLL>;
+ clock-names = "fclk_div2", "fclk_div3",
+ "fclk_div5", "fclk_div7",
+ "hifi_pll", "xtal", "sys_pll";
+ };
+ };
diff --git a/Documentation/devicetree/bindings/clock/amlogic,a1-pll-clkc.yaml b/Documentation/devicetree/bindings/clock/amlogic,a1-pll-clkc.yaml
new file mode 100644
index 000000000000..c99274d2a9bd
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/amlogic,a1-pll-clkc.yaml
@@ -0,0 +1,64 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/amlogic,a1-pll-clkc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amlogic A1 PLL Clock Control Unit
+
+maintainers:
+ - Neil Armstrong <neil.armstrong@linaro.org>
+ - Jerome Brunet <jbrunet@baylibre.com>
+ - Jian Hu <jian.hu@jian.hu.com>
+ - Dmitry Rokosov <ddrokosov@sberdevices.ru>
+
+properties:
+ compatible:
+ const: amlogic,a1-pll-clkc
+
+ '#clock-cells':
+ const: 1
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: input fixpll_in
+ - description: input hifipll_in
+ - description: input syspll_in
+ minItems: 2 # syspll_in is optional
+
+ clock-names:
+ items:
+ - const: fixpll_in
+ - const: hifipll_in
+ - const: syspll_in
+ minItems: 2 # syspll_in is optional
+
+required:
+ - compatible
+ - '#clock-cells'
+ - reg
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/amlogic,a1-peripherals-clkc.h>
+ apb {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ clock-controller@7c80 {
+ compatible = "amlogic,a1-pll-clkc";
+ reg = <0 0x7c80 0 0x18c>;
+ #clock-cells = <1>;
+ clocks = <&clkc_periphs CLKID_FIXPLL_IN>,
+ <&clkc_periphs CLKID_HIFIPLL_IN>,
+ <&clkc_periphs CLKID_SYSPLL_IN>;
+ clock-names = "fixpll_in", "hifipll_in", "syspll_in";
+ };
+ };
diff --git a/Documentation/devicetree/bindings/clock/amlogic,axg-audio-clkc.txt b/Documentation/devicetree/bindings/clock/amlogic,axg-audio-clkc.txt
deleted file mode 100644
index 3a8948c04bc9..000000000000
--- a/Documentation/devicetree/bindings/clock/amlogic,axg-audio-clkc.txt
+++ /dev/null
@@ -1,59 +0,0 @@
-* Amlogic AXG Audio Clock Controllers
-
-The Amlogic AXG audio clock controller generates and supplies clock to the
-other elements of the audio subsystem, such as fifos, i2s, spdif and pdm
-devices.
-
-Required Properties:
-
-- compatible : should be "amlogic,axg-audio-clkc" for the A113X and A113D,
- "amlogic,g12a-audio-clkc" for G12A,
- "amlogic,sm1-audio-clkc" for S905X3.
-- reg : physical base address of the clock controller and length of
- memory mapped region.
-- clocks : a list of phandle + clock-specifier pairs for the clocks listed
- in clock-names.
-- clock-names : must contain the following:
- * "pclk" - Main peripheral bus clock
- may contain the following:
- * "mst_in[0-7]" - 8 input plls to generate clock signals
- * "slv_sclk[0-9]" - 10 slave bit clocks provided by external
- components.
- * "slv_lrclk[0-9]" - 10 slave sample clocks provided by external
- components.
-- resets : phandle of the internal reset line
-- #clock-cells : should be 1.
-- #reset-cells : should be 1 on the g12a (and following) soc family
-
-Each clock is assigned an identifier and client nodes can use this identifier
-to specify the clock which they consume. All available clocks are defined as
-preprocessor macros in the dt-bindings/clock/axg-audio-clkc.h header and can be
-used in device tree sources.
-
-Example:
-
-clkc_audio: clock-controller@0 {
- compatible = "amlogic,axg-audio-clkc";
- reg = <0x0 0x0 0x0 0xb4>;
- #clock-cells = <1>;
-
- clocks = <&clkc CLKID_AUDIO>,
- <&clkc CLKID_MPLL0>,
- <&clkc CLKID_MPLL1>,
- <&clkc CLKID_MPLL2>,
- <&clkc CLKID_MPLL3>,
- <&clkc CLKID_HIFI_PLL>,
- <&clkc CLKID_FCLK_DIV3>,
- <&clkc CLKID_FCLK_DIV4>,
- <&clkc CLKID_GP0_PLL>;
- clock-names = "pclk",
- "mst_in0",
- "mst_in1",
- "mst_in2",
- "mst_in3",
- "mst_in4",
- "mst_in5",
- "mst_in6",
- "mst_in7";
- resets = <&reset RESET_AUDIO>;
-};
diff --git a/Documentation/devicetree/bindings/clock/amlogic,axg-audio-clkc.yaml b/Documentation/devicetree/bindings/clock/amlogic,axg-audio-clkc.yaml
new file mode 100644
index 000000000000..fd7982dd4cea
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/amlogic,axg-audio-clkc.yaml
@@ -0,0 +1,201 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/amlogic,axg-audio-clkc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amlogic AXG Audio Clock Controller
+
+maintainers:
+ - Neil Armstrong <neil.armstrong@linaro.org>
+ - Jerome Brunet <jbrunet@baylibre.com>
+
+description:
+ The Amlogic AXG audio clock controller generates and supplies clock to the
+ other elements of the audio subsystem, such as fifos, i2s, spdif and pdm
+ devices.
+
+properties:
+ compatible:
+ enum:
+ - amlogic,axg-audio-clkc
+ - amlogic,g12a-audio-clkc
+ - amlogic,sm1-audio-clkc
+
+ '#clock-cells':
+ const: 1
+
+ '#reset-cells':
+ const: 1
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ minItems: 1
+ items:
+ - description: main peripheral bus clock
+ - description: input plls to generate clock signals N0
+ - description: input plls to generate clock signals N1
+ - description: input plls to generate clock signals N2
+ - description: input plls to generate clock signals N3
+ - description: input plls to generate clock signals N4
+ - description: input plls to generate clock signals N5
+ - description: input plls to generate clock signals N6
+ - description: input plls to generate clock signals N7
+ - description: slave bit clock N0 provided by external components
+ - description: slave bit clock N1 provided by external components
+ - description: slave bit clock N2 provided by external components
+ - description: slave bit clock N3 provided by external components
+ - description: slave bit clock N4 provided by external components
+ - description: slave bit clock N5 provided by external components
+ - description: slave bit clock N6 provided by external components
+ - description: slave bit clock N7 provided by external components
+ - description: slave bit clock N8 provided by external components
+ - description: slave bit clock N9 provided by external components
+ - description: slave sample clock N0 provided by external components
+ - description: slave sample clock N1 provided by external components
+ - description: slave sample clock N2 provided by external components
+ - description: slave sample clock N3 provided by external components
+ - description: slave sample clock N4 provided by external components
+ - description: slave sample clock N5 provided by external components
+ - description: slave sample clock N6 provided by external components
+ - description: slave sample clock N7 provided by external components
+ - description: slave sample clock N8 provided by external components
+ - description: slave sample clock N9 provided by external components
+
+ clock-names:
+ minItems: 1
+ items:
+ - const: pclk
+ - const: mst_in0
+ - const: mst_in1
+ - const: mst_in2
+ - const: mst_in3
+ - const: mst_in4
+ - const: mst_in5
+ - const: mst_in6
+ - const: mst_in7
+ - const: slv_sclk0
+ - const: slv_sclk1
+ - const: slv_sclk2
+ - const: slv_sclk3
+ - const: slv_sclk4
+ - const: slv_sclk5
+ - const: slv_sclk6
+ - const: slv_sclk7
+ - const: slv_sclk8
+ - const: slv_sclk9
+ - const: slv_lrclk0
+ - const: slv_lrclk1
+ - const: slv_lrclk2
+ - const: slv_lrclk3
+ - const: slv_lrclk4
+ - const: slv_lrclk5
+ - const: slv_lrclk6
+ - const: slv_lrclk7
+ - const: slv_lrclk8
+ - const: slv_lrclk9
+
+ resets:
+ description: internal reset line
+
+required:
+ - compatible
+ - '#clock-cells'
+ - reg
+ - clocks
+ - clock-names
+ - resets
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - amlogic,g12a-audio-clkc
+ - amlogic,sm1-audio-clkc
+ then:
+ required:
+ - '#reset-cells'
+ else:
+ properties:
+ '#reset-cells': false
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/axg-clkc.h>
+ #include <dt-bindings/reset/amlogic,meson-axg-reset.h>
+ apb {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ clkc_audio: clock-controller@0 {
+ compatible = "amlogic,axg-audio-clkc";
+ reg = <0x0 0x0 0x0 0xb4>;
+ #clock-cells = <1>;
+
+ clocks = <&clkc CLKID_AUDIO>,
+ <&clkc CLKID_MPLL0>,
+ <&clkc CLKID_MPLL1>,
+ <&clkc CLKID_MPLL2>,
+ <&clkc CLKID_MPLL3>,
+ <&clkc CLKID_HIFI_PLL>,
+ <&clkc CLKID_FCLK_DIV3>,
+ <&clkc CLKID_FCLK_DIV4>,
+ <&clkc CLKID_GP0_PLL>,
+ <&slv_sclk0>,
+ <&slv_sclk1>,
+ <&slv_sclk2>,
+ <&slv_sclk3>,
+ <&slv_sclk4>,
+ <&slv_sclk5>,
+ <&slv_sclk6>,
+ <&slv_sclk7>,
+ <&slv_sclk8>,
+ <&slv_sclk9>,
+ <&slv_lrclk0>,
+ <&slv_lrclk1>,
+ <&slv_lrclk2>,
+ <&slv_lrclk3>,
+ <&slv_lrclk4>,
+ <&slv_lrclk5>,
+ <&slv_lrclk6>,
+ <&slv_lrclk7>,
+ <&slv_lrclk8>,
+ <&slv_lrclk9>;
+ clock-names = "pclk",
+ "mst_in0",
+ "mst_in1",
+ "mst_in2",
+ "mst_in3",
+ "mst_in4",
+ "mst_in5",
+ "mst_in6",
+ "mst_in7",
+ "slv_sclk0",
+ "slv_sclk1",
+ "slv_sclk2",
+ "slv_sclk3",
+ "slv_sclk4",
+ "slv_sclk5",
+ "slv_sclk6",
+ "slv_sclk7",
+ "slv_sclk8",
+ "slv_sclk9",
+ "slv_lrclk0",
+ "slv_lrclk1",
+ "slv_lrclk2",
+ "slv_lrclk3",
+ "slv_lrclk4",
+ "slv_lrclk5",
+ "slv_lrclk6",
+ "slv_lrclk7",
+ "slv_lrclk8",
+ "slv_lrclk9";
+ resets = <&reset RESET_AUDIO>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/clock/amlogic,c3-peripherals-clkc.yaml b/Documentation/devicetree/bindings/clock/amlogic,c3-peripherals-clkc.yaml
new file mode 100644
index 000000000000..98e30b8c0529
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/amlogic,c3-peripherals-clkc.yaml
@@ -0,0 +1,120 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) 2022-2023 Amlogic, Inc. All rights reserved
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/amlogic,c3-peripherals-clkc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amlogic C3 series Peripheral Clock Controller
+
+maintainers:
+ - Neil Armstrong <neil.armstrong@linaro.org>
+ - Jerome Brunet <jbrunet@baylibre.com>
+ - Xianwei Zhao <xianwei.zhao@amlogic.com>
+ - Chuan Liu <chuan.liu@amlogic.com>
+
+properties:
+ compatible:
+ const: amlogic,c3-peripherals-clkc
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ minItems: 16
+ items:
+ - description: input oscillator (usually at 24MHz)
+ - description: input oscillators multiplexer
+ - description: input fix pll
+ - description: input fclk div 2
+ - description: input fclk div 2p5
+ - description: input fclk div 3
+ - description: input fclk div 4
+ - description: input fclk div 5
+ - description: input fclk div 7
+ - description: input gp0 pll
+ - description: input gp1 pll
+ - description: input hifi pll
+ - description: input sys clk
+ - description: input axi clk
+ - description: input sys pll div 16
+ - description: input cpu clk div 16
+ - description: input pad clock for rtc clk (optional)
+
+ clock-names:
+ minItems: 16
+ items:
+ - const: xtal_24m
+ - const: oscin
+ - const: fix
+ - const: fdiv2
+ - const: fdiv2p5
+ - const: fdiv3
+ - const: fdiv4
+ - const: fdiv5
+ - const: fdiv7
+ - const: gp0
+ - const: gp1
+ - const: hifi
+ - const: sysclk
+ - const: axiclk
+ - const: sysplldiv16
+ - const: cpudiv16
+ - const: pad_osc
+
+ "#clock-cells":
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - "#clock-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ apb {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ clock-controller@0 {
+ compatible = "amlogic,c3-peripherals-clkc";
+ reg = <0x0 0x0 0x0 0x49c>;
+ #clock-cells = <1>;
+ clocks = <&xtal_24m>,
+ <&scmi_clk 8>,
+ <&scmi_clk 12>,
+ <&clkc_pll 3>,
+ <&clkc_pll 5>,
+ <&clkc_pll 7>,
+ <&clkc_pll 9>,
+ <&clkc_pll 11>,
+ <&clkc_pll 13>,
+ <&clkc_pll 15>,
+ <&scmi_clk 13>,
+ <&clkc_pll 17>,
+ <&scmi_clk 9>,
+ <&scmi_clk 10>,
+ <&scmi_clk 14>,
+ <&scmi_clk 15>;
+ clock-names = "xtal_24m",
+ "oscin",
+ "fix",
+ "fdiv2",
+ "fdiv2p5",
+ "fdiv3",
+ "fdiv4",
+ "fdiv5",
+ "fdiv7",
+ "gp0",
+ "gp1",
+ "hifi",
+ "sysclk",
+ "axiclk",
+ "sysplldiv16",
+ "cpudiv16";
+ };
+ };
diff --git a/Documentation/devicetree/bindings/clock/amlogic,c3-pll-clkc.yaml b/Documentation/devicetree/bindings/clock/amlogic,c3-pll-clkc.yaml
new file mode 100644
index 000000000000..700865cc9792
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/amlogic,c3-pll-clkc.yaml
@@ -0,0 +1,62 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) 2022-2023 Amlogic, Inc. All rights reserved
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/amlogic,c3-pll-clkc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amlogic C3 series PLL Clock Controller
+
+maintainers:
+ - Neil Armstrong <neil.armstrong@linaro.org>
+ - Jerome Brunet <jbrunet@baylibre.com>
+ - Chuan Liu <chuan.liu@amlogic.com>
+ - Xianwei Zhao <xianwei.zhao@amlogic.com>
+
+properties:
+ compatible:
+ const: amlogic,c3-pll-clkc
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: input top pll
+ - description: input mclk pll
+ - description: input fix pll
+
+ clock-names:
+ items:
+ - const: top
+ - const: mclk
+ - const: fix
+
+ "#clock-cells":
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - "#clock-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ apb {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ clock-controller@8000 {
+ compatible = "amlogic,c3-pll-clkc";
+ reg = <0x0 0x8000 0x0 0x1a4>;
+ clocks = <&scmi_clk 2>,
+ <&scmi_clk 5>,
+ <&scmi_clk 12>;
+ clock-names = "top", "mclk", "fix";
+ #clock-cells = <1>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/clock/amlogic,gxbb-aoclkc.txt b/Documentation/devicetree/bindings/clock/amlogic,gxbb-aoclkc.txt
deleted file mode 100644
index c41f0be5d438..000000000000
--- a/Documentation/devicetree/bindings/clock/amlogic,gxbb-aoclkc.txt
+++ /dev/null
@@ -1,64 +0,0 @@
-* Amlogic GXBB AO Clock and Reset Unit
-
-The Amlogic GXBB AO clock controller generates and supplies clock to various
-controllers within the Always-On part of the SoC.
-
-Required Properties:
-
-- compatible: value should be different for each SoC family as :
- - GXBB (S905) : "amlogic,meson-gxbb-aoclkc"
- - GXL (S905X, S905D) : "amlogic,meson-gxl-aoclkc"
- - GXM (S912) : "amlogic,meson-gxm-aoclkc"
- - AXG (A113D, A113X) : "amlogic,meson-axg-aoclkc"
- - G12A (S905X2, S905D2, S905Y2) : "amlogic,meson-g12a-aoclkc"
- followed by the common "amlogic,meson-gx-aoclkc"
-- clocks: list of clock phandle, one for each entry clock-names.
-- clock-names: should contain the following:
- * "xtal" : the platform xtal
- * "mpeg-clk" : the main clock controller mother clock (aka clk81)
- * "ext-32k-0" : external 32kHz reference #0 if any (optional)
- * "ext-32k-1" : external 32kHz reference #1 if any (optional - gx only)
- * "ext-32k-2" : external 32kHz reference #2 if any (optional - gx only)
-
-- #clock-cells: should be 1.
-
-Each clock is assigned an identifier and client nodes can use this identifier
-to specify the clock which they consume. All available clocks are defined as
-preprocessor macros in the dt-bindings/clock/gxbb-aoclkc.h header and can be
-used in device tree sources.
-
-- #reset-cells: should be 1.
-
-Each reset is assigned an identifier and client nodes can use this identifier
-to specify the reset which they consume. All available resets are defined as
-preprocessor macros in the dt-bindings/reset/gxbb-aoclkc.h header and can be
-used in device tree sources.
-
-Parent node should have the following properties :
-- compatible: "amlogic,meson-gx-ao-sysctrl", "syscon", "simple-mfd"
-- reg: base address and size of the AO system control register space.
-
-Example: AO Clock controller node:
-
-ao_sysctrl: sys-ctrl@0 {
- compatible = "amlogic,meson-gx-ao-sysctrl", "syscon", "simple-mfd";
- reg = <0x0 0x0 0x0 0x100>;
-
- clkc_AO: clock-controller {
- compatible = "amlogic,meson-gxbb-aoclkc", "amlogic,meson-gx-aoclkc";
- #clock-cells = <1>;
- #reset-cells = <1>;
- clocks = <&xtal>, <&clkc CLKID_CLK81>;
- clock-names = "xtal", "mpeg-clk";
- };
-
-Example: UART controller node that consumes the clock and reset generated
- by the clock controller:
-
- uart_AO: serial@4c0 {
- compatible = "amlogic,meson-uart";
- reg = <0x4c0 0x14>;
- interrupts = <0 90 1>;
- clocks = <&clkc_AO CLKID_AO_UART1>;
- resets = <&clkc_AO RESET_AO_UART1>;
- };
diff --git a/Documentation/devicetree/bindings/clock/amlogic,gxbb-aoclkc.yaml b/Documentation/devicetree/bindings/clock/amlogic,gxbb-aoclkc.yaml
new file mode 100644
index 000000000000..628e5dd33dd4
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/amlogic,gxbb-aoclkc.yaml
@@ -0,0 +1,85 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/amlogic,gxbb-aoclkc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amlogic Always-On Clock Controller
+
+maintainers:
+ - Neil Armstrong <neil.armstrong@linaro.org>
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - amlogic,meson-gxbb-aoclkc
+ - amlogic,meson-gxl-aoclkc
+ - amlogic,meson-gxm-aoclkc
+ - amlogic,meson-axg-aoclkc
+ - const: amlogic,meson-gx-aoclkc
+ - enum:
+ - amlogic,meson-axg-aoclkc
+ - amlogic,meson-g12a-aoclkc
+
+ clocks:
+ minItems: 2
+ maxItems: 5
+
+ clock-names:
+ minItems: 2
+ items:
+ - const: xtal
+ - const: mpeg-clk
+ - const: ext-32k-0
+ - const: ext-32k-1
+ - const: ext-32k-2
+
+ '#clock-cells':
+ const: 1
+
+ '#reset-cells':
+ const: 1
+
+required:
+ - compatible
+ - clocks
+ - clock-names
+ - '#clock-cells'
+ - '#reset-cells'
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ enum:
+ - amlogic,meson-g12a-aoclkc
+
+ then:
+ properties:
+ clocks:
+ minItems: 2
+ maxItems: 3
+
+ clock-names:
+ minItems: 2
+ maxItems: 3
+
+ - if:
+ properties:
+ compatible:
+ enum:
+ - amlogic,meson-gxl-aoclkc
+ - amlogic,meson-gxm-aoclkc
+ - amlogic,meson-axg-aoclkc
+
+ then:
+ properties:
+ clocks:
+ maxItems: 2
+
+ clock-names:
+ maxItems: 2
+
+additionalProperties: false
diff --git a/Documentation/devicetree/bindings/clock/amlogic,gxbb-clkc.txt b/Documentation/devicetree/bindings/clock/amlogic,gxbb-clkc.txt
deleted file mode 100644
index 7ccecd5c02c1..000000000000
--- a/Documentation/devicetree/bindings/clock/amlogic,gxbb-clkc.txt
+++ /dev/null
@@ -1,53 +0,0 @@
-* Amlogic GXBB Clock and Reset Unit
-
-The Amlogic GXBB clock controller generates and supplies clock to various
-controllers within the SoC.
-
-Required Properties:
-
-- compatible: should be:
- "amlogic,gxbb-clkc" for GXBB SoC,
- "amlogic,gxl-clkc" for GXL and GXM SoC,
- "amlogic,axg-clkc" for AXG SoC.
- "amlogic,g12a-clkc" for G12A SoC.
- "amlogic,g12b-clkc" for G12B SoC.
- "amlogic,sm1-clkc" for SM1 SoC.
-- clocks : list of clock phandle, one for each entry clock-names.
-- clock-names : should contain the following:
- * "xtal": the platform xtal
-
-- #clock-cells: should be 1.
-
-Each clock is assigned an identifier and client nodes can use this identifier
-to specify the clock which they consume. All available clocks are defined as
-preprocessor macros in the dt-bindings/clock/gxbb-clkc.h header and can be
-used in device tree sources.
-
-Parent node should have the following properties :
-- compatible: "syscon", "simple-mfd, and "amlogic,meson-gx-hhi-sysctrl" or
- "amlogic,meson-axg-hhi-sysctrl"
-- reg: base address and size of the HHI system control register space.
-
-Example: Clock controller node:
-
-sysctrl: system-controller@0 {
- compatible = "amlogic,meson-gx-hhi-sysctrl", "syscon", "simple-mfd";
- reg = <0 0 0 0x400>;
-
- clkc: clock-controller {
- #clock-cells = <1>;
- compatible = "amlogic,gxbb-clkc";
- clocks = <&xtal>;
- clock-names = "xtal";
- };
-};
-
-Example: UART controller node that consumes the clock generated by the clock
- controller:
-
- uart_AO: serial@c81004c0 {
- compatible = "amlogic,meson-uart";
- reg = <0xc81004c0 0x14>;
- interrupts = <0 90 1>;
- clocks = <&clkc CLKID_CLK81>;
- };
diff --git a/Documentation/devicetree/bindings/clock/amlogic,gxbb-clkc.yaml b/Documentation/devicetree/bindings/clock/amlogic,gxbb-clkc.yaml
new file mode 100644
index 000000000000..63246f1cb539
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/amlogic,gxbb-clkc.yaml
@@ -0,0 +1,37 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/amlogic,gxbb-clkc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amlogic Clock Controller
+
+maintainers:
+ - Neil Armstrong <neil.armstrong@linaro.org>
+
+properties:
+ compatible:
+ enum:
+ - amlogic,gxbb-clkc
+ - amlogic,gxl-clkc
+ - amlogic,axg-clkc
+ - amlogic,g12a-clkc
+ - amlogic,g12b-clkc
+ - amlogic,sm1-clkc
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ const: xtal
+
+ '#clock-cells':
+ const: 1
+
+required:
+ - compatible
+ - clocks
+ - clock-names
+ - '#clock-cells'
+
+additionalProperties: false
diff --git a/Documentation/devicetree/bindings/clock/amlogic,meson8-clkc.yaml b/Documentation/devicetree/bindings/clock/amlogic,meson8-clkc.yaml
new file mode 100644
index 000000000000..ab73d4654171
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/amlogic,meson8-clkc.yaml
@@ -0,0 +1,45 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/amlogic,meson8-clkc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amlogic Meson8, Meson8b and Meson8m2 Clock and Reset Controller
+
+maintainers:
+ - Neil Armstrong <neil.armstrong@linaro.org>
+
+properties:
+ compatible:
+ oneOf:
+ - enum:
+ - amlogic,meson8-clkc
+ - amlogic,meson8b-clkc
+ - items:
+ - const: amlogic,meson8m2-clkc
+ - const: amlogic,meson8-clkc
+
+ clocks:
+ minItems: 2
+ maxItems: 3
+
+ clock-names:
+ minItems: 2
+ items:
+ - const: xtal
+ - const: ddr_pll
+ - const: clk_32k
+
+ '#clock-cells':
+ const: 1
+
+ '#reset-cells':
+ const: 1
+
+required:
+ - compatible
+ - clocks
+ - clock-names
+ - '#reset-cells'
+
+additionalProperties: false
diff --git a/Documentation/devicetree/bindings/clock/amlogic,meson8b-clkc.txt b/Documentation/devicetree/bindings/clock/amlogic,meson8b-clkc.txt
deleted file mode 100644
index cc51e4746b3b..000000000000
--- a/Documentation/devicetree/bindings/clock/amlogic,meson8b-clkc.txt
+++ /dev/null
@@ -1,51 +0,0 @@
-* Amlogic Meson8, Meson8b and Meson8m2 Clock and Reset Unit
-
-The Amlogic Meson8 / Meson8b / Meson8m2 clock controller generates and
-supplies clock to various controllers within the SoC.
-
-Required Properties:
-
-- compatible: must be one of:
- - "amlogic,meson8-clkc" for Meson8 (S802) SoCs
- - "amlogic,meson8b-clkc" for Meson8 (S805) SoCs
- - "amlogic,meson8m2-clkc" for Meson8m2 (S812) SoCs
-- #clock-cells: should be 1.
-- #reset-cells: should be 1.
-- clocks: list of clock phandles, one for each entry in clock-names
-- clock-names: should contain the following:
- * "xtal": the 24MHz system oscillator
- * "ddr_pll": the DDR PLL clock
- * "clk_32k": (if present) the 32kHz clock signal from GPIOAO_6 (CLK_32K_IN)
-
-Parent node should have the following properties :
-- compatible: "amlogic,meson-hhi-sysctrl", "simple-mfd", "syscon"
-- reg: base address and size of the HHI system control register space.
-
-Each clock is assigned an identifier and client nodes can use this identifier
-to specify the clock which they consume. All available clocks are defined as
-preprocessor macros in the dt-bindings/clock/meson8b-clkc.h header and can be
-used in device tree sources.
-
-Similarly a preprocessor macro for each reset line is defined in
-dt-bindings/reset/amlogic,meson8b-clkc-reset.h (which can be used from the
-device tree sources).
-
-
-Example: Clock controller node:
-
- clkc: clock-controller {
- compatible = "amlogic,meson8b-clkc";
- #clock-cells = <1>;
- #reset-cells = <1>;
- };
-
-
-Example: UART controller node that consumes the clock generated by the clock
- controller:
-
- uart_AO: serial@c81004c0 {
- compatible = "amlogic,meson-uart";
- reg = <0xc81004c0 0x14>;
- interrupts = <0 90 1>;
- clocks = <&clkc CLKID_CLK81>;
- };
diff --git a/Documentation/devicetree/bindings/clock/amlogic,s4-peripherals-clkc.yaml b/Documentation/devicetree/bindings/clock/amlogic,s4-peripherals-clkc.yaml
new file mode 100644
index 000000000000..c229e4f0c1d9
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/amlogic,s4-peripherals-clkc.yaml
@@ -0,0 +1,96 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) 2022-2023 Amlogic, Inc. All rights reserved
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/amlogic,s4-peripherals-clkc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amlogic S4 Peripherals Clock Controller
+
+maintainers:
+ - Yu Tu <yu.tu@amlogic.com>
+
+properties:
+ compatible:
+ const: amlogic,s4-peripherals-clkc
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ minItems: 14
+ items:
+ - description: input fixed pll div2
+ - description: input fixed pll div2p5
+ - description: input fixed pll div3
+ - description: input fixed pll div4
+ - description: input fixed pll div5
+ - description: input fixed pll div7
+ - description: input hifi pll
+ - description: input gp0 pll
+ - description: input mpll0
+ - description: input mpll1
+ - description: input mpll2
+ - description: input mpll3
+ - description: input hdmi pll
+ - description: input oscillator (usually at 24MHz)
+ - description: input external 32kHz reference (optional)
+
+ clock-names:
+ minItems: 14
+ items:
+ - const: fclk_div2
+ - const: fclk_div2p5
+ - const: fclk_div3
+ - const: fclk_div4
+ - const: fclk_div5
+ - const: fclk_div7
+ - const: hifi_pll
+ - const: gp0_pll
+ - const: mpll0
+ - const: mpll1
+ - const: mpll2
+ - const: mpll3
+ - const: hdmi_pll
+ - const: xtal
+ - const: ext_32k
+
+ "#clock-cells":
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - "#clock-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/amlogic,s4-peripherals-clkc.h>
+
+ clkc_periphs: clock-controller@fe000000 {
+ compatible = "amlogic,s4-peripherals-clkc";
+ reg = <0xfe000000 0x49c>;
+ clocks = <&clkc_pll 3>,
+ <&clkc_pll 13>,
+ <&clkc_pll 5>,
+ <&clkc_pll 7>,
+ <&clkc_pll 9>,
+ <&clkc_pll 11>,
+ <&clkc_pll 17>,
+ <&clkc_pll 15>,
+ <&clkc_pll 25>,
+ <&clkc_pll 27>,
+ <&clkc_pll 29>,
+ <&clkc_pll 31>,
+ <&clkc_pll 20>,
+ <&xtal>;
+ clock-names = "fclk_div2", "fclk_div2p5", "fclk_div3", "fclk_div4",
+ "fclk_div5", "fclk_div7", "hifi_pll", "gp0_pll",
+ "mpll0", "mpll1", "mpll2", "mpll3", "hdmi_pll", "xtal";
+ #clock-cells = <1>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/amlogic,s4-pll-clkc.yaml b/Documentation/devicetree/bindings/clock/amlogic,s4-pll-clkc.yaml
new file mode 100644
index 000000000000..d8932ec26ca8
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/amlogic,s4-pll-clkc.yaml
@@ -0,0 +1,49 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) 2022-2023 Amlogic, Inc. All rights reserved
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/amlogic,s4-pll-clkc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amlogic S4 PLL Clock Controller
+
+maintainers:
+ - Yu Tu <yu.tu@amlogic.com>
+
+properties:
+ compatible:
+ const: amlogic,s4-pll-clkc
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ items:
+ - const: xtal
+
+ "#clock-cells":
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - "#clock-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ clkc_pll: clock-controller@fe008000 {
+ compatible = "amlogic,s4-pll-clkc";
+ reg = <0xfe008000 0x1e8>;
+ clocks = <&xtal>;
+ clock-names = "xtal";
+ #clock-cells = <1>;
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/apm,xgene-device-clock.yaml b/Documentation/devicetree/bindings/clock/apm,xgene-device-clock.yaml
new file mode 100644
index 000000000000..b27bcb2a9ee0
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/apm,xgene-device-clock.yaml
@@ -0,0 +1,80 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/apm,xgene-device-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: APM X-Gene SoC device clocks
+
+maintainers:
+ - Khuong Dinh <khuong@os.amperecomputing.com>
+
+properties:
+ compatible:
+ const: apm,xgene-device-clock
+
+ reg:
+ minItems: 1
+ maxItems: 2
+
+ reg-names:
+ items:
+ - enum: [ csr-reg, div-reg ]
+ - const: div-reg
+ minItems: 1
+
+ clocks:
+ maxItems: 1
+
+ "#clock-cells":
+ const: 1
+
+ clock-output-names:
+ maxItems: 1
+
+ clock-names:
+ maxItems: 1
+
+ csr-offset:
+ description: Offset to the CSR reset register
+ $ref: /schemas/types.yaml#/definitions/uint32
+ default: 0
+
+ csr-mask:
+ description: CSR reset mask bit
+ $ref: /schemas/types.yaml#/definitions/uint32
+ default: 0xf
+
+ enable-offset:
+ description: Offset to the enable register
+ $ref: /schemas/types.yaml#/definitions/uint32
+ default: 8
+
+ enable-mask:
+ description: CSR enable mask bit
+ $ref: /schemas/types.yaml#/definitions/uint32
+ default: 0xf
+
+ divider-offset:
+ description: Offset to the divider register
+ $ref: /schemas/types.yaml#/definitions/uint32
+ default: 0
+
+ divider-width:
+ description: Width of the divider register
+ $ref: /schemas/types.yaml#/definitions/uint32
+ default: 0
+
+ divider-shift:
+ description: Bit shift of the divider register
+ $ref: /schemas/types.yaml#/definitions/uint32
+ default: 0
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - '#clock-cells'
+ - clock-output-names
+
+additionalProperties: false
diff --git a/Documentation/devicetree/bindings/clock/apm,xgene-socpll-clock.yaml b/Documentation/devicetree/bindings/clock/apm,xgene-socpll-clock.yaml
new file mode 100644
index 000000000000..bdd4a6b92bbd
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/apm,xgene-socpll-clock.yaml
@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/apm,xgene-socpll-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: APM X-Gene SoC PLL, PCPPLL, and PMD clocks
+
+maintainers:
+ - Khuong Dinh <khuong@os.amperecomputing.com>
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - apm,xgene-pcppll-clock
+ - apm,xgene-pcppll-v2-clock
+ - apm,xgene-pmd-clock
+ - apm,xgene-socpll-clock
+ - apm,xgene-socpll-v2-clock
+
+ reg:
+ maxItems: 1
+
+ reg-names:
+ items:
+ - enum: [ csr-reg, div-reg ]
+ - const: div-reg
+ minItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ enum: [ pcppll, socpll ]
+
+ "#clock-cells":
+ const: 1
+
+ clock-output-names:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - '#clock-cells'
+ - clock-output-names
+
+additionalProperties: false
diff --git a/Documentation/devicetree/bindings/clock/apple,nco.yaml b/Documentation/devicetree/bindings/clock/apple,nco.yaml
index 8b8411dc42f6..080454f56721 100644
--- a/Documentation/devicetree/bindings/clock/apple,nco.yaml
+++ b/Documentation/devicetree/bindings/clock/apple,nco.yaml
@@ -19,12 +19,17 @@ description: |
properties:
compatible:
- items:
- - enum:
- - apple,t6000-nco
- - apple,t8103-nco
- - apple,t8112-nco
- - const: apple,nco
+ oneOf:
+ - items:
+ - const: apple,t6020-nco
+ - const: apple,t8103-nco
+ - items:
+ - enum:
+ # Do not add additional SoC to this list.
+ - apple,t6000-nco
+ - apple,t8103-nco
+ - apple,t8112-nco
+ - const: apple,nco
clocks:
description:
diff --git a/Documentation/devicetree/bindings/clock/armada3700-periph-clock.txt b/Documentation/devicetree/bindings/clock/armada3700-periph-clock.txt
deleted file mode 100644
index fbf58c443c04..000000000000
--- a/Documentation/devicetree/bindings/clock/armada3700-periph-clock.txt
+++ /dev/null
@@ -1,71 +0,0 @@
-* Peripheral Clock bindings for Marvell Armada 37xx SoCs
-
-Marvell Armada 37xx SoCs provide peripheral clocks which are
-used as clock source for the peripheral of the SoC.
-
-There are two different blocks associated to north bridge and south
-bridge.
-
-The peripheral clock consumer should specify the desired clock by
-having the clock ID in its "clocks" phandle cell.
-
-The following is a list of provided IDs for Armada 3700 North bridge clocks:
-ID Clock name Description
------------------------------------
-0 mmc MMC controller
-1 sata_host Sata Host
-2 sec_at Security AT
-3 sac_dap Security DAP
-4 tsecm Security Engine
-5 setm_tmx Serial Embedded Trace Module
-6 avs Adaptive Voltage Scaling
-7 sqf SPI
-8 pwm PWM
-9 i2c_2 I2C 2
-10 i2c_1 I2C 1
-11 ddr_phy DDR PHY
-12 ddr_fclk DDR F clock
-13 trace Trace
-14 counter Counter
-15 eip97 EIP 97
-16 cpu CPU
-
-The following is a list of provided IDs for Armada 3700 South bridge clocks:
-ID Clock name Description
------------------------------------
-0 gbe-50 50 MHz parent clock for Gigabit Ethernet
-1 gbe-core parent clock for Gigabit Ethernet core
-2 gbe-125 125 MHz parent clock for Gigabit Ethernet
-3 gbe1-50 50 MHz clock for Gigabit Ethernet port 1
-4 gbe0-50 50 MHz clock for Gigabit Ethernet port 0
-5 gbe1-125 125 MHz clock for Gigabit Ethernet port 1
-6 gbe0-125 125 MHz clock for Gigabit Ethernet port 0
-7 gbe1-core Gigabit Ethernet core port 1
-8 gbe0-core Gigabit Ethernet core port 0
-9 gbe-bm Gigabit Ethernet Buffer Manager
-10 sdio SDIO
-11 usb32-sub2-sys USB 2 clock
-12 usb32-ss-sys USB 3 clock
-13 pcie PCIe controller
-
-Required properties:
-
-- compatible : shall be "marvell,armada-3700-periph-clock-nb" for the
- north bridge block, or
- "marvell,armada-3700-periph-clock-sb" for the south bridge block
-- reg : must be the register address of North/South Bridge Clock register
-- #clock-cells : from common clock binding; shall be set to 1
-
-- clocks : list of the parent clock phandle in the following order:
- TBG-A P, TBG-B P, TBG-A S, TBG-B S and finally the xtal clock.
-
-
-Example:
-
-nb_perih_clk: nb-periph-clk@13000{
- compatible = "marvell,armada-3700-periph-clock-nb";
- reg = <0x13000 0x1000>;
- clocks = <&tbg 0>, <&tbg 1>, <&tbg 2>,
- <&tbg 3>, <&xtalclk>;
- #clock-cells = <1>;
-};
diff --git a/Documentation/devicetree/bindings/clock/armada3700-tbg-clock.txt b/Documentation/devicetree/bindings/clock/armada3700-tbg-clock.txt
deleted file mode 100644
index ed1df32c577a..000000000000
--- a/Documentation/devicetree/bindings/clock/armada3700-tbg-clock.txt
+++ /dev/null
@@ -1,27 +0,0 @@
-* Time Base Generator Clock bindings for Marvell Armada 37xx SoCs
-
-Marvell Armada 37xx SoCs provide Time Base Generator clocks which are
-used as parent clocks for the peripheral clocks.
-
-The TBG clock consumer should specify the desired clock by having the
-clock ID in its "clocks" phandle cell.
-
-The following is a list of provided IDs and clock names on Armada 3700:
- 0 = TBG A P
- 1 = TBG B P
- 2 = TBG A S
- 3 = TBG B S
-
-Required properties:
-- compatible : shall be "marvell,armada-3700-tbg-clock"
-- reg : must be the register address of North Bridge PLL register
-- #clock-cells : from common clock binding; shall be set to 1
-
-Example:
-
-tbg: tbg@13200 {
- compatible = "marvell,armada-3700-tbg-clock";
- reg = <0x13200 0x1000>;
- clocks = <&xtalclk>;
- #clock-cells = <1>;
-};
diff --git a/Documentation/devicetree/bindings/clock/armada3700-xtal-clock.txt b/Documentation/devicetree/bindings/clock/armada3700-xtal-clock.txt
deleted file mode 100644
index 4c0807f28cfa..000000000000
--- a/Documentation/devicetree/bindings/clock/armada3700-xtal-clock.txt
+++ /dev/null
@@ -1,29 +0,0 @@
-* Xtal Clock bindings for Marvell Armada 37xx SoCs
-
-Marvell Armada 37xx SoCs allow to determine the xtal clock frequencies by
-reading the gpio latch register.
-
-This node must be a subnode of the node exposing the register address
-of the GPIO block where the gpio latch is located.
-See Documentation/devicetree/bindings/pinctrl/marvell,armada-37xx-pinctrl.txt
-
-Required properties:
-- compatible : shall be one of the following:
- "marvell,armada-3700-xtal-clock"
-- #clock-cells : from common clock binding; shall be set to 0
-
-Optional properties:
-- clock-output-names : from common clock binding; allows overwrite default clock
- output names ("xtal")
-
-Example:
-pinctrl_nb: pinctrl-nb@13800 {
- compatible = "armada3710-nb-pinctrl", "syscon", "simple-mfd";
- reg = <0x13800 0x100>, <0x13C00 0x20>;
-
- xtalclk: xtal-clk {
- compatible = "marvell,armada-3700-xtal-clock";
- clock-output-names = "xtal";
- #clock-cells = <0>;
- };
-};
diff --git a/Documentation/devicetree/bindings/clock/artpec6.txt b/Documentation/devicetree/bindings/clock/artpec6.txt
deleted file mode 100644
index dff9cdf0009c..000000000000
--- a/Documentation/devicetree/bindings/clock/artpec6.txt
+++ /dev/null
@@ -1,41 +0,0 @@
-* Clock bindings for Axis ARTPEC-6 chip
-
-The bindings are based on the clock provider binding in
-Documentation/devicetree/bindings/clock/clock-bindings.txt
-
-External clocks:
-----------------
-
-There are two external inputs to the main clock controller which should be
-provided using the common clock bindings.
-- "sys_refclk": External 50 Mhz oscillator (required)
-- "i2s_refclk": Alternate audio reference clock (optional).
-
-Main clock controller
----------------------
-
-Required properties:
-- #clock-cells: Should be <1>
- See dt-bindings/clock/axis,artpec6-clkctrl.h for the list of valid identifiers.
-- compatible: Should be "axis,artpec6-clkctrl"
-- reg: Must contain the base address and length of the system controller
-- clocks: Must contain a phandle entry for each clock in clock-names
-- clock-names: Must include the external oscillator ("sys_refclk"). Optional
- ones are the audio reference clock ("i2s_refclk") and the audio fractional
- dividers ("frac_clk0" and "frac_clk1").
-
-Examples:
-
-ext_clk: ext_clk {
- #clock-cells = <0>;
- compatible = "fixed-clock";
- clock-frequency = <50000000>;
-};
-
-clkctrl: clkctrl@f8000000 {
- #clock-cells = <1>;
- compatible = "axis,artpec6-clkctrl";
- reg = <0xf8000000 0x48>;
- clocks = <&ext_clk>;
- clock-names = "sys_refclk";
-};
diff --git a/Documentation/devicetree/bindings/clock/at91-clock.txt b/Documentation/devicetree/bindings/clock/at91-clock.txt
deleted file mode 100644
index 13f45db3b66d..000000000000
--- a/Documentation/devicetree/bindings/clock/at91-clock.txt
+++ /dev/null
@@ -1,58 +0,0 @@
-Device Tree Clock bindings for arch-at91
-
-This binding uses the common clock binding[1].
-
-[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
-
-Slow Clock controller:
-
-Required properties:
-- compatible : shall be one of the following:
- "atmel,at91sam9x5-sckc",
- "atmel,sama5d3-sckc",
- "atmel,sama5d4-sckc" or
- "microchip,sam9x60-sckc":
- at91 SCKC (Slow Clock Controller)
-- #clock-cells : shall be 1 for "microchip,sam9x60-sckc" otherwise shall be 0.
-- clocks : shall be the input parent clock phandle for the clock.
-
-Optional properties:
-- atmel,osc-bypass : boolean property. Set this when a clock signal is directly
- provided on XIN.
-
-For example:
- sckc@fffffe50 {
- compatible = "atmel,at91sam9x5-sckc";
- reg = <0xfffffe50 0x4>;
- clocks = <&slow_xtal>;
- #clock-cells = <0>;
- };
-
-Power Management Controller (PMC):
-
-Required properties:
-- compatible : shall be "atmel,<chip>-pmc", "syscon" or
- "microchip,sam9x60-pmc"
- <chip> can be: at91rm9200, at91sam9260, at91sam9261,
- at91sam9263, at91sam9g45, at91sam9n12, at91sam9rl, at91sam9g15,
- at91sam9g25, at91sam9g35, at91sam9x25, at91sam9x35, at91sam9x5,
- sama5d2, sama5d3 or sama5d4.
-- #clock-cells : from common clock binding; shall be set to 2. The first entry
- is the type of the clock (core, system, peripheral or generated) and the
- second entry its index as provided by the datasheet
-- clocks : Must contain an entry for each entry in clock-names.
-- clock-names: Must include the following entries: "slow_clk", "main_xtal"
-
-Optional properties:
-- atmel,osc-bypass : boolean property. Set this when a clock signal is directly
- provided on XIN.
-
-For example:
- pmc: pmc@f0018000 {
- compatible = "atmel,sama5d4-pmc", "syscon";
- reg = <0xf0018000 0x120>;
- interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>;
- #clock-cells = <2>;
- clocks = <&clk32k>, <&main_xtal>;
- clock-names = "slow_clk", "main_xtal";
- };
diff --git a/Documentation/devicetree/bindings/clock/atmel,at91rm9200-pmc.yaml b/Documentation/devicetree/bindings/clock/atmel,at91rm9200-pmc.yaml
new file mode 100644
index 000000000000..e803a1fc3681
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/atmel,at91rm9200-pmc.yaml
@@ -0,0 +1,162 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/atmel,at91rm9200-pmc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Atmel Power Management Controller (PMC)
+
+maintainers:
+ - Claudiu Beznea <claudiu.beznea@microchip.com>
+
+description:
+ The power management controller optimizes power consumption by controlling all
+ system and user peripheral clocks. The PMC enables/disables the clock inputs
+ to many of the peripherals and to the processor.
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - const: atmel,at91sam9g20-pmc
+ - const: atmel,at91sam9260-pmc
+ - const: syscon
+ - items:
+ - enum:
+ - atmel,at91sam9g15-pmc
+ - atmel,at91sam9g25-pmc
+ - atmel,at91sam9g35-pmc
+ - atmel,at91sam9x25-pmc
+ - atmel,at91sam9x35-pmc
+ - const: atmel,at91sam9x5-pmc
+ - const: syscon
+ - items:
+ - enum:
+ - atmel,at91rm9200-pmc
+ - atmel,at91sam9260-pmc
+ - atmel,at91sam9261-pmc
+ - atmel,at91sam9263-pmc
+ - atmel,at91sam9g45-pmc
+ - atmel,at91sam9n12-pmc
+ - atmel,at91sam9rl-pmc
+ - atmel,at91sam9x5-pmc
+ - atmel,sama5d2-pmc
+ - atmel,sama5d3-pmc
+ - atmel,sama5d4-pmc
+ - microchip,sam9x60-pmc
+ - microchip,sam9x7-pmc
+ - microchip,sama7d65-pmc
+ - microchip,sama7g5-pmc
+ - const: syscon
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ "#clock-cells":
+ description: |
+ - 1st cell is the clock type, one of PMC_TYPE_CORE, PMC_TYPE_SYSTEM,
+ PMC_TYPE_PERIPHERAL, PMC_TYPE_GCK, PMC_TYPE_PROGRAMMABLE (as defined
+ in <dt-bindings/clock/at91.h>)
+ - 2nd cell is the clock identifier as defined in <dt-bindings/clock/at91.h
+ (for core clocks) or as defined in datasheet (for system, peripheral,
+ gck and programmable clocks).
+ const: 2
+
+ clocks:
+ minItems: 2
+ maxItems: 3
+
+ clock-names:
+ minItems: 2
+ maxItems: 3
+
+ atmel,osc-bypass:
+ description: set when a clock signal is directly provided on XIN
+ type: boolean
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - "#clock-cells"
+ - clocks
+ - clock-names
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - microchip,sam9x60-pmc
+ - microchip,sam9x7-pmc
+ - microchip,sama7d65-pmc
+ - microchip,sama7g5-pmc
+ then:
+ properties:
+ clocks:
+ minItems: 3
+ maxItems: 3
+ clock-names:
+ items:
+ - const: td_slck
+ - const: md_slck
+ - const: main_xtal
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - atmel,at91rm9200-pmc
+ - atmel,at91sam9260-pmc
+ - atmel,at91sam9261-pmc
+ - atmel,at91sam9263-pmc
+ - atmel,at91sam9g20-pmc
+ then:
+ properties:
+ clocks:
+ minItems: 2
+ maxItems: 2
+ clock-names:
+ items:
+ - const: slow_xtal
+ - const: main_xtal
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - atmel,sama5d2-pmc
+ - atmel,sama5d3-pmc
+ - atmel,sama5d4-pmc
+ then:
+ properties:
+ clocks:
+ minItems: 2
+ maxItems: 2
+ clock-names:
+ items:
+ - const: slow_clk
+ - const: main_xtal
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ pmc: clock-controller@f0018000 {
+ compatible = "atmel,sama5d4-pmc", "syscon";
+ reg = <0xf0018000 0x120>;
+ interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>;
+ #clock-cells = <2>;
+ clocks = <&clk32k>, <&main_xtal>;
+ clock-names = "slow_clk", "main_xtal";
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/atmel,at91sam9x5-sckc.yaml b/Documentation/devicetree/bindings/clock/atmel,at91sam9x5-sckc.yaml
new file mode 100644
index 000000000000..d4cf8ae2961e
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/atmel,at91sam9x5-sckc.yaml
@@ -0,0 +1,73 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/atmel,at91sam9x5-sckc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Atmel Slow Clock Controller (SCKC)
+
+maintainers:
+ - Claudiu Beznea <claudiu.beznea@microchip.com>
+
+properties:
+ compatible:
+ oneOf:
+ - enum:
+ - atmel,at91sam9x5-sckc
+ - atmel,sama5d3-sckc
+ - atmel,sama5d4-sckc
+ - microchip,sam9x60-sckc
+ - items:
+ - enum:
+ - microchip,sam9x7-sckc
+ - microchip,sama7d65-sckc
+ - microchip,sama7g5-sckc
+ - const: microchip,sam9x60-sckc
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ "#clock-cells":
+ enum: [0, 1]
+
+ atmel,osc-bypass:
+ type: boolean
+ description: set when a clock signal is directly provided on XIN
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - "#clock-cells"
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - microchip,sam9x60-sckc
+ then:
+ properties:
+ "#clock-cells":
+ const: 1
+ else:
+ properties:
+ "#clock-cells":
+ const: 0
+
+additionalProperties: false
+
+examples:
+ - |
+ clk32k: clock-controller@fffffe50 {
+ compatible = "microchip,sam9x60-sckc";
+ reg = <0xfffffe50 0x4>;
+ clocks = <&slow_xtal>;
+ #clock-cells = <1>;
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/axis,artpec6-clkctrl.yaml b/Documentation/devicetree/bindings/clock/axis,artpec6-clkctrl.yaml
new file mode 100644
index 000000000000..a78269369df8
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/axis,artpec6-clkctrl.yaml
@@ -0,0 +1,55 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/axis,artpec6-clkctrl.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Axis ARTPEC-6 clock controller
+
+maintainers:
+ - Lars Persson <lars.persson@axis.com>
+
+properties:
+ compatible:
+ const: axis,artpec6-clkctrl
+
+ reg:
+ maxItems: 1
+
+ "#clock-cells":
+ const: 1
+
+ clocks:
+ minItems: 1
+ items:
+ - description: external 50 MHz oscillator.
+ - description: optional audio reference clock.
+ - description: fractional audio clock divider 0.
+ - description: fractional audio clock divider 1.
+
+ clock-names:
+ minItems: 1
+ items:
+ - const: sys_refclk
+ - const: i2s_refclk
+ - const: frac_clk0
+ - const: frac_clk1
+
+required:
+ - compatible
+ - reg
+ - "#clock-cells"
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-controller@f8000000 {
+ compatible = "axis,artpec6-clkctrl";
+ reg = <0xf8000000 0x48>;
+ #clock-cells = <1>;
+ clocks = <&ext_clk>;
+ clock-names = "sys_refclk";
+ };
diff --git a/Documentation/devicetree/bindings/clock/axis,artpec8-clock.yaml b/Documentation/devicetree/bindings/clock/axis,artpec8-clock.yaml
new file mode 100644
index 000000000000..277af48ac841
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/axis,artpec8-clock.yaml
@@ -0,0 +1,213 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/axis,artpec8-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Axis ARTPEC-8 SoC clock controller
+
+maintainers:
+ - Jesper Nilsson <jesper.nilsson@axis.com>
+
+description: |
+ ARTPEC-8 clock controller is comprised of several CMU (Clock Management Unit)
+ units, generating clocks for different domains. Those CMU units are modeled
+ as separate device tree nodes, and might depend on each other.
+ The root clock in that root tree is an external clock: OSCCLK (25 MHz).
+ This external clock must be defined as a fixed-rate clock in dts.
+
+ CMU_CMU is a top-level CMU, where all base clocks are prepared using PLLs and
+ dividers; all other clocks of function blocks (other CMUs) are usually
+ derived from CMU_CMU.
+
+ Each clock is assigned an identifier and client nodes can use this identifier
+ to specify the clock which they consume. All clocks available for usage
+ in clock consumer nodes are defined as preprocessor macros in
+ 'include/dt-bindings/clock/axis,artpec8-clk.h' header.
+
+properties:
+ compatible:
+ enum:
+ - axis,artpec8-cmu-cmu
+ - axis,artpec8-cmu-bus
+ - axis,artpec8-cmu-core
+ - axis,artpec8-cmu-cpucl
+ - axis,artpec8-cmu-fsys
+ - axis,artpec8-cmu-imem
+ - axis,artpec8-cmu-peri
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ minItems: 1
+ maxItems: 5
+
+ clock-names:
+ minItems: 1
+ maxItems: 5
+
+ "#clock-cells":
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - "#clock-cells"
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ const: axis,artpec8-cmu-cmu
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (25 MHz)
+
+ clock-names:
+ items:
+ - const: fin_pll
+
+ - if:
+ properties:
+ compatible:
+ const: axis,artpec8-cmu-bus
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (25 MHz)
+ - description: CMU_BUS BUS clock (from CMU_CMU)
+ - description: CMU_BUS DLP clock (from CMU_CMU)
+
+ clock-names:
+ items:
+ - const: fin_pll
+ - const: bus
+ - const: dlp
+
+ - if:
+ properties:
+ compatible:
+ const: axis,artpec8-cmu-core
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (25 MHz)
+ - description: CMU_CORE main clock (from CMU_CMU)
+ - description: CMU_CORE DLP clock (from CMU_CMU)
+
+ clock-names:
+ items:
+ - const: fin_pll
+ - const: main
+ - const: dlp
+
+ - if:
+ properties:
+ compatible:
+ const: axis,artpec8-cmu-cpucl
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (25 MHz)
+ - description: CMU_CPUCL switch clock (from CMU_CMU)
+
+ clock-names:
+ items:
+ - const: fin_pll
+ - const: switch
+
+ - if:
+ properties:
+ compatible:
+ const: axis,artpec8-cmu-fsys
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (25 MHz)
+ - description: CMU_FSYS SCAN0 clock (from CMU_CMU)
+ - description: CMU_FSYS SCAN1 clock (from CMU_CMU)
+ - description: CMU_FSYS BUS clock (from CMU_CMU)
+ - description: CMU_FSYS IP clock (from CMU_CMU)
+
+ clock-names:
+ items:
+ - const: fin_pll
+ - const: scan0
+ - const: scan1
+ - const: bus
+ - const: ip
+
+ - if:
+ properties:
+ compatible:
+ const: axis,artpec8-cmu-imem
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (25 MHz)
+ - description: CMU_IMEM ACLK clock (from CMU_CMU)
+ - description: CMU_IMEM JPEG clock (from CMU_CMU)
+
+ clock-names:
+ items:
+ - const: fin_pll
+ - const: aclk
+ - const: jpeg
+
+ - if:
+ properties:
+ compatible:
+ const: axis,artpec8-cmu-peri
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (25 MHz)
+ - description: CMU_PERI IP clock (from CMU_CMU)
+ - description: CMU_PERI AUDIO clock (from CMU_CMU)
+ - description: CMU_PERI DISP clock (from CMU_CMU)
+
+ clock-names:
+ items:
+ - const: fin_pll
+ - const: ip
+ - const: audio
+ - const: disp
+
+additionalProperties: false
+
+examples:
+ # Clock controller node for CMU_FSYS
+ - |
+ #include <dt-bindings/clock/axis,artpec8-clk.h>
+
+ cmu_fsys: clock-controller@16c10000 {
+ compatible = "axis,artpec8-cmu-fsys";
+ reg = <0x16c10000 0x4000>;
+ #clock-cells = <1>;
+ clocks = <&fin_pll>,
+ <&cmu_cmu CLK_DOUT_CMU_FSYS_SCAN0>,
+ <&cmu_cmu CLK_DOUT_CMU_FSYS_SCAN1>,
+ <&cmu_cmu CLK_DOUT_CMU_FSYS_BUS>,
+ <&cmu_cmu CLK_DOUT_CMU_FSYS_IP>;
+ clock-names = "fin_pll", "scan0", "scan1", "bus", "ip";
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/baikal,bt1-ccu-div.yaml b/Documentation/devicetree/bindings/clock/baikal,bt1-ccu-div.yaml
index bd4cefbb1244..30252c95700c 100644
--- a/Documentation/devicetree/bindings/clock/baikal,bt1-ccu-div.yaml
+++ b/Documentation/devicetree/bindings/clock/baikal,bt1-ccu-div.yaml
@@ -134,9 +134,13 @@ properties:
"#reset-cells":
const: 1
- clocks: true
+ clocks:
+ minItems: 3
+ maxItems: 4
- clock-names: true
+ clock-names:
+ minItems: 3
+ maxItems: 4
additionalProperties: false
diff --git a/Documentation/devicetree/bindings/clock/baikal,bt1-ccu-pll.yaml b/Documentation/devicetree/bindings/clock/baikal,bt1-ccu-pll.yaml
index 624984d51c10..7f8d98226437 100644
--- a/Documentation/devicetree/bindings/clock/baikal,bt1-ccu-pll.yaml
+++ b/Documentation/devicetree/bindings/clock/baikal,bt1-ccu-pll.yaml
@@ -125,7 +125,7 @@ examples:
clk25m: clock-oscillator-25m {
compatible = "fixed-clock";
#clock-cells = <0>;
- clock-frequency = <25000000>;
+ clock-frequency = <25000000>;
clock-output-names = "clk25m";
};
...
diff --git a/Documentation/devicetree/bindings/clock/brcm,bcm2835-aux-clock.txt b/Documentation/devicetree/bindings/clock/brcm,bcm2835-aux-clock.txt
deleted file mode 100644
index 4acfc8f641b6..000000000000
--- a/Documentation/devicetree/bindings/clock/brcm,bcm2835-aux-clock.txt
+++ /dev/null
@@ -1,31 +0,0 @@
-Broadcom BCM2835 auxiliary peripheral support
-
-This binding uses the common clock binding:
- Documentation/devicetree/bindings/clock/clock-bindings.txt
-
-The auxiliary peripherals (UART, SPI1, and SPI2) have a small register
-area controlling clock gating to the peripherals, and providing an IRQ
-status register.
-
-Required properties:
-- compatible: Should be "brcm,bcm2835-aux"
-- #clock-cells: Should be <1>. The permitted clock-specifier values can be
- found in include/dt-bindings/clock/bcm2835-aux.h
-- reg: Specifies base physical address and size of the registers
-- clocks: The parent clock phandle
-
-Example:
-
- clocks: cprman@7e101000 {
- compatible = "brcm,bcm2835-cprman";
- #clock-cells = <1>;
- reg = <0x7e101000 0x2000>;
- clocks = <&clk_osc>;
- };
-
- aux: aux@7e215004 {
- compatible = "brcm,bcm2835-aux";
- #clock-cells = <1>;
- reg = <0x7e215000 0x8>;
- clocks = <&clocks BCM2835_CLOCK_VPU>;
- };
diff --git a/Documentation/devicetree/bindings/clock/brcm,bcm2835-aux-clock.yaml b/Documentation/devicetree/bindings/clock/brcm,bcm2835-aux-clock.yaml
new file mode 100644
index 000000000000..0f4050ffa41c
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/brcm,bcm2835-aux-clock.yaml
@@ -0,0 +1,47 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/brcm,bcm2835-aux-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Broadcom BCM2835 auxiliary peripheral clock
+
+maintainers:
+ - Stefan Wahren <wahrenst@gmx.net>
+ - Raspberry Pi Kernel Maintenance <kernel-list@raspberrypi.com>
+
+description:
+ The auxiliary peripherals (UART, SPI1, and SPI2) have a small register
+ area controlling clock gating to the peripherals, and providing an IRQ
+ status register.
+
+properties:
+ compatible:
+ const: brcm,bcm2835-aux
+
+ reg:
+ maxItems: 1
+
+ "#clock-cells":
+ const: 1
+
+ clocks:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - "#clock-cells"
+ - clocks
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/bcm2835.h>
+ clock@7e215000 {
+ compatible = "brcm,bcm2835-aux";
+ reg = <0x7e215000 0x8>;
+ #clock-cells = <1>;
+ clocks = <&clocks BCM2835_CLOCK_VPU>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/brcm,bcm2835-cprman.txt b/Documentation/devicetree/bindings/clock/brcm,bcm2835-cprman.txt
deleted file mode 100644
index 9e0b03a6519b..000000000000
--- a/Documentation/devicetree/bindings/clock/brcm,bcm2835-cprman.txt
+++ /dev/null
@@ -1,60 +0,0 @@
-Broadcom BCM2835 CPRMAN clocks
-
-This binding uses the common clock binding:
- Documentation/devicetree/bindings/clock/clock-bindings.txt
-
-The CPRMAN clock controller generates clocks in the audio power domain
-of the BCM2835. There is a level of PLLs deriving from an external
-oscillator, a level of PLL dividers that produce channels off of the
-few PLLs, and a level of mostly-generic clock generators sourcing from
-the PLL channels. Most other hardware components source from the
-clock generators, but a few (like the ARM or HDMI) will source from
-the PLL dividers directly.
-
-Required properties:
-- compatible: should be one of the following,
- "brcm,bcm2711-cprman"
- "brcm,bcm2835-cprman"
-- #clock-cells: Should be <1>. The permitted clock-specifier values can be
- found in include/dt-bindings/clock/bcm2835.h
-- reg: Specifies base physical address and size of the registers
-- clocks: phandles to the parent clocks used as input to the module, in
- the following order:
-
- - External oscillator
- - DSI0 byte clock
- - DSI0 DDR2 clock
- - DSI0 DDR clock
- - DSI1 byte clock
- - DSI1 DDR2 clock
- - DSI1 DDR clock
-
- Only external oscillator is required. The DSI clocks may
- not be present, in which case their children will be
- unusable.
-
-Example:
-
- clk_osc: clock@3 {
- compatible = "fixed-clock";
- reg = <3>;
- #clock-cells = <0>;
- clock-output-names = "osc";
- clock-frequency = <19200000>;
- };
-
- clocks: cprman@7e101000 {
- compatible = "brcm,bcm2835-cprman";
- #clock-cells = <1>;
- reg = <0x7e101000 0x2000>;
- clocks = <&clk_osc>;
- };
-
- i2c0: i2c@7e205000 {
- compatible = "brcm,bcm2835-i2c";
- reg = <0x7e205000 0x1000>;
- interrupts = <2 21>;
- clocks = <&clocks BCM2835_CLOCK_VPU>;
- #address-cells = <1>;
- #size-cells = <0>;
- };
diff --git a/Documentation/devicetree/bindings/clock/brcm,bcm2835-cprman.yaml b/Documentation/devicetree/bindings/clock/brcm,bcm2835-cprman.yaml
new file mode 100644
index 000000000000..b0cf76c74bc7
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/brcm,bcm2835-cprman.yaml
@@ -0,0 +1,59 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/brcm,bcm2835-cprman.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Broadcom BCM2835 CPRMAN clocks
+
+maintainers:
+ - Stefan Wahren <wahrenst@gmx.net>
+ - Raspberry Pi Kernel Maintenance <kernel-list@raspberrypi.com>
+
+description:
+ The CPRMAN clock controller generates clocks in the audio power domain of the
+ BCM2835. There is a level of PLLs deriving from an external oscillator, a
+ level of PLL dividers that produce channels off of the few PLLs, and a level
+ of mostly-generic clock generators sourcing from the PLL channels. Most other
+ hardware components source from the clock generators, but a few (like the ARM
+ or HDMI) will source from the PLL dividers directly.
+
+properties:
+ compatible:
+ enum:
+ - brcm,bcm2711-cprman
+ - brcm,bcm2835-cprman
+
+ reg:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 1
+
+ clocks:
+ minItems: 1
+ items:
+ - description: External oscillator clock.
+ - description: DSI0 byte clock.
+ - description: DSI0 DDR2 clock.
+ - description: DSI0 DDR clock.
+ - description: DSI1 byte clock.
+ - description: DSI1 DDR2 clock.
+ - description: DSI1 DDR clock.
+
+additionalProperties: false
+
+required:
+ - compatible
+ - '#clock-cells'
+ - reg
+ - clocks
+
+examples:
+ - |
+ clock-controller@7e101000 {
+ compatible = "brcm,bcm2835-cprman";
+ reg = <0x7e101000 0x2000>;
+ #clock-cells = <1>;
+ clocks = <&clk_osc>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/brcm,bcm53573-ilp.txt b/Documentation/devicetree/bindings/clock/brcm,bcm53573-ilp.txt
deleted file mode 100644
index 2ebb107331dd..000000000000
--- a/Documentation/devicetree/bindings/clock/brcm,bcm53573-ilp.txt
+++ /dev/null
@@ -1,36 +0,0 @@
-Broadcom BCM53573 ILP clock
-===========================
-
-This binding uses the common clock binding:
- Documentation/devicetree/bindings/clock/clock-bindings.txt
-
-This binding is used for ILP clock (sometimes referred as "slow clock")
-on Broadcom BCM53573 devices using Cortex-A7 CPU.
-
-ILP's rate has to be calculated on runtime and it depends on ALP clock
-which has to be referenced.
-
-This clock is part of PMU (Power Management Unit), a Broadcom's device
-handing power-related aspects. Its node must be sub-node of the PMU
-device.
-
-Required properties:
-- compatible: "brcm,bcm53573-ilp"
-- clocks: has to reference an ALP clock
-- #clock-cells: should be <0>
-- clock-output-names: from common clock bindings, should contain clock
- name
-
-Example:
-
-pmu@18012000 {
- compatible = "simple-mfd", "syscon";
- reg = <0x18012000 0x00001000>;
-
- ilp {
- compatible = "brcm,bcm53573-ilp";
- clocks = <&alp>;
- #clock-cells = <0>;
- clock-output-names = "ilp";
- };
-};
diff --git a/Documentation/devicetree/bindings/clock/brcm,bcm53573-ilp.yaml b/Documentation/devicetree/bindings/clock/brcm,bcm53573-ilp.yaml
new file mode 100644
index 000000000000..cd291f428a8d
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/brcm,bcm53573-ilp.yaml
@@ -0,0 +1,46 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/brcm,bcm53573-ilp.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Broadcom BCM53573 ILP clock
+
+maintainers:
+ - Rafał Miłecki <rafal@milecki.pl>
+
+description: >
+ ILP clock (sometimes referred as "slow clock") on Broadcom BCM53573 devices
+ using Cortex-A7 CPU.
+
+ ILP's rate has to be calculated on runtime and it depends on ALP clock which
+ has to be referenced.
+
+ This clock is part of PMU (Power Management Unit), a Broadcom device handling
+ power-related aspects. Its node must be sub-node of the PMU device.
+
+properties:
+ compatible:
+ items:
+ - const: brcm,bcm53573-ilp
+
+ clocks:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 0
+
+ clock-output-names:
+ items:
+ - const: ilp
+
+additionalProperties: false
+
+examples:
+ - |
+ ilp {
+ compatible = "brcm,bcm53573-ilp";
+ clocks = <&alp>;
+ #clock-cells = <0>;
+ clock-output-names = "ilp";
+ };
diff --git a/Documentation/devicetree/bindings/clock/brcm,bcm63268-timer-clocks.yaml b/Documentation/devicetree/bindings/clock/brcm,bcm63268-timer-clocks.yaml
index 199818b2fb6d..cd0d763ce2f3 100644
--- a/Documentation/devicetree/bindings/clock/brcm,bcm63268-timer-clocks.yaml
+++ b/Documentation/devicetree/bindings/clock/brcm,bcm63268-timer-clocks.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/clock/brcm,bcm63268-timer-clocks.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Broadcom BCM63268 Timer Clock and Reset Device Tree Bindings
+title: Broadcom BCM63268 Timer Clock and Reset
maintainers:
- Álvaro Fernández Rojas <noltari@gmail.com>
diff --git a/Documentation/devicetree/bindings/clock/brcm,bcm63xx-clocks.txt b/Documentation/devicetree/bindings/clock/brcm,bcm63xx-clocks.txt
deleted file mode 100644
index 3e7ca5530775..000000000000
--- a/Documentation/devicetree/bindings/clock/brcm,bcm63xx-clocks.txt
+++ /dev/null
@@ -1,24 +0,0 @@
-Gated Clock Controller Bindings for MIPS based BCM63XX SoCs
-
-Required properties:
-- compatible: must be one of:
- "brcm,bcm3368-clocks"
- "brcm,bcm6318-clocks"
- "brcm,bcm6318-ubus-clocks"
- "brcm,bcm6328-clocks"
- "brcm,bcm6358-clocks"
- "brcm,bcm6362-clocks"
- "brcm,bcm6368-clocks"
- "brcm,bcm63268-clocks"
-
-- reg: Address and length of the register set
-- #clock-cells: must be <1>
-
-
-Example:
-
-clkctl: clock-controller@10000004 {
- compatible = "brcm,bcm6328-clocks";
- reg = <0x10000004 0x4>;
- #clock-cells = <1>;
-};
diff --git a/Documentation/devicetree/bindings/clock/brcm,bcm63xx-clocks.yaml b/Documentation/devicetree/bindings/clock/brcm,bcm63xx-clocks.yaml
new file mode 100644
index 000000000000..56909ea499a2
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/brcm,bcm63xx-clocks.yaml
@@ -0,0 +1,44 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/brcm,bcm63xx-clocks.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MIPS based BCM63XX SoCs Gated Clock Controller
+
+maintainers:
+ - Álvaro Fernández Rojas <noltari@gmail.com>
+ - Jonas Gorski <jonas.gorski@gmail.com>
+
+properties:
+ compatible:
+ enum:
+ - brcm,bcm3368-clocks
+ - brcm,bcm6318-clocks
+ - brcm,bcm6318-ubus-clocks
+ - brcm,bcm6328-clocks
+ - brcm,bcm6358-clocks
+ - brcm,bcm6362-clocks
+ - brcm,bcm6368-clocks
+ - brcm,bcm63268-clocks
+
+ reg:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-controller@10000004 {
+ compatible = "brcm,bcm6328-clocks";
+ reg = <0x10000004 0x4>;
+ #clock-cells = <1>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/brcm,kona-ccu.txt b/Documentation/devicetree/bindings/clock/brcm,kona-ccu.txt
deleted file mode 100644
index 8e5a7d868557..000000000000
--- a/Documentation/devicetree/bindings/clock/brcm,kona-ccu.txt
+++ /dev/null
@@ -1,138 +0,0 @@
-Broadcom Kona Family Clocks
-
-This binding is associated with Broadcom SoCs having "Kona" style
-clock control units (CCUs). A CCU is a clock provider that manages
-a set of clock signals. Each CCU is represented by a node in the
-device tree.
-
-This binding uses the common clock binding:
- Documentation/devicetree/bindings/clock/clock-bindings.txt
-
-Required properties:
-- compatible
- Shall have a value of the form "brcm,<model>-<which>-ccu",
- where <model> is a Broadcom SoC model number and <which> is
- the name of a defined CCU. For example:
- "brcm,bcm11351-root-ccu"
- The compatible strings used for each supported SoC family
- are defined below.
-- reg
- Shall define the base and range of the address space
- containing clock control registers
-- #clock-cells
- Shall have value <1>. The permitted clock-specifier values
- are defined below.
-- clock-output-names
- Shall be an ordered list of strings defining the names of
- the clocks provided by the CCU.
-
-Device tree example:
-
- slave_ccu: slave_ccu {
- compatible = "brcm,bcm11351-slave-ccu";
- reg = <0x3e011000 0x0f00>;
- #clock-cells = <1>;
- clock-output-names = "uartb",
- "uartb2",
- "uartb3",
- "uartb4";
- };
-
- ref_crystal_clk: ref_crystal {
- #clock-cells = <0>;
- compatible = "fixed-clock";
- clock-frequency = <26000000>;
- };
-
- uart@3e002000 {
- compatible = "brcm,bcm11351-dw-apb-uart", "snps,dw-apb-uart";
- reg = <0x3e002000 0x1000>;
- clocks = <&slave_ccu BCM281XX_SLAVE_CCU_UARTB3>;
- interrupts = <GIC_SPI 65 IRQ_TYPE_LEVEL_HIGH>;
- reg-shift = <2>;
- reg-io-width = <4>;
- };
-
-BCM281XX family
----------------
-CCU compatible string values for SoCs in the BCM281XX family are:
- "brcm,bcm11351-root-ccu"
- "brcm,bcm11351-aon-ccu"
- "brcm,bcm11351-hub-ccu"
- "brcm,bcm11351-master-ccu"
- "brcm,bcm11351-slave-ccu"
-
-The following table defines the set of CCUs and clock specifiers for
-BCM281XX family clocks. When a clock consumer references a clocks,
-its symbolic specifier (rather than its numeric index value) should
-be used. These specifiers are defined in:
- "include/dt-bindings/clock/bcm281xx.h"
-
- CCU Clock Type Index Specifier
- --- ----- ---- ----- ---------
- root frac_1m peri 0 BCM281XX_ROOT_CCU_FRAC_1M
-
- aon hub_timer peri 0 BCM281XX_AON_CCU_HUB_TIMER
- aon pmu_bsc peri 1 BCM281XX_AON_CCU_PMU_BSC
- aon pmu_bsc_var peri 2 BCM281XX_AON_CCU_PMU_BSC_VAR
-
- hub tmon_1m peri 0 BCM281XX_HUB_CCU_TMON_1M
-
- master sdio1 peri 0 BCM281XX_MASTER_CCU_SDIO1
- master sdio2 peri 1 BCM281XX_MASTER_CCU_SDIO2
- master sdio3 peri 2 BCM281XX_MASTER_CCU_SDIO3
- master sdio4 peri 3 BCM281XX_MASTER_CCU_SDIO4
- master dmac peri 4 BCM281XX_MASTER_CCU_DMAC
- master usb_ic peri 5 BCM281XX_MASTER_CCU_USB_IC
- master hsic2_48m peri 6 BCM281XX_MASTER_CCU_HSIC_48M
- master hsic2_12m peri 7 BCM281XX_MASTER_CCU_HSIC_12M
-
- slave uartb peri 0 BCM281XX_SLAVE_CCU_UARTB
- slave uartb2 peri 1 BCM281XX_SLAVE_CCU_UARTB2
- slave uartb3 peri 2 BCM281XX_SLAVE_CCU_UARTB3
- slave uartb4 peri 3 BCM281XX_SLAVE_CCU_UARTB4
- slave ssp0 peri 4 BCM281XX_SLAVE_CCU_SSP0
- slave ssp2 peri 5 BCM281XX_SLAVE_CCU_SSP2
- slave bsc1 peri 6 BCM281XX_SLAVE_CCU_BSC1
- slave bsc2 peri 7 BCM281XX_SLAVE_CCU_BSC2
- slave bsc3 peri 8 BCM281XX_SLAVE_CCU_BSC3
- slave pwm peri 9 BCM281XX_SLAVE_CCU_PWM
-
-
-BCM21664 family
----------------
-CCU compatible string values for SoCs in the BCM21664 family are:
- "brcm,bcm21664-root-ccu"
- "brcm,bcm21664-aon-ccu"
- "brcm,bcm21664-master-ccu"
- "brcm,bcm21664-slave-ccu"
-
-The following table defines the set of CCUs and clock specifiers for
-BCM21664 family clocks. When a clock consumer references a clocks,
-its symbolic specifier (rather than its numeric index value) should
-be used. These specifiers are defined in:
- "include/dt-bindings/clock/bcm21664.h"
-
- CCU Clock Type Index Specifier
- --- ----- ---- ----- ---------
- root frac_1m peri 0 BCM21664_ROOT_CCU_FRAC_1M
-
- aon hub_timer peri 0 BCM21664_AON_CCU_HUB_TIMER
-
- master sdio1 peri 0 BCM21664_MASTER_CCU_SDIO1
- master sdio2 peri 1 BCM21664_MASTER_CCU_SDIO2
- master sdio3 peri 2 BCM21664_MASTER_CCU_SDIO3
- master sdio4 peri 3 BCM21664_MASTER_CCU_SDIO4
- master sdio1_sleep peri 4 BCM21664_MASTER_CCU_SDIO1_SLEEP
- master sdio2_sleep peri 5 BCM21664_MASTER_CCU_SDIO2_SLEEP
- master sdio3_sleep peri 6 BCM21664_MASTER_CCU_SDIO3_SLEEP
- master sdio4_sleep peri 7 BCM21664_MASTER_CCU_SDIO4_SLEEP
-
- slave uartb peri 0 BCM21664_SLAVE_CCU_UARTB
- slave uartb2 peri 1 BCM21664_SLAVE_CCU_UARTB2
- slave uartb3 peri 2 BCM21664_SLAVE_CCU_UARTB3
- slave uartb4 peri 3 BCM21664_SLAVE_CCU_UARTB4
- slave bsc1 peri 4 BCM21664_SLAVE_CCU_BSC1
- slave bsc2 peri 5 BCM21664_SLAVE_CCU_BSC2
- slave bsc3 peri 6 BCM21664_SLAVE_CCU_BSC3
- slave bsc4 peri 7 BCM21664_SLAVE_CCU_BSC4
diff --git a/Documentation/devicetree/bindings/clock/brcm,kona-ccu.yaml b/Documentation/devicetree/bindings/clock/brcm,kona-ccu.yaml
new file mode 100644
index 000000000000..e5656950b3bd
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/brcm,kona-ccu.yaml
@@ -0,0 +1,181 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/brcm,kona-ccu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Broadcom Kona family clock control units (CCU)
+
+maintainers:
+ - Florian Fainelli <florian.fainelli@broadcom.com>
+ - Ray Jui <rjui@broadcom.com>
+ - Scott Branden <sbranden@broadcom.com>
+
+description: |
+ Broadcom "Kona" style clock control unit (CCU) is a clock provider that
+ manages a set of clock signals.
+
+ All available clock IDs are defined in
+ - include/dt-bindings/clock/bcm281xx.h for BCM281XX family
+ - include/dt-bindings/clock/bcm21664.h for BCM21664 family
+
+properties:
+ compatible:
+ enum:
+ - brcm,bcm11351-aon-ccu
+ - brcm,bcm11351-hub-ccu
+ - brcm,bcm11351-master-ccu
+ - brcm,bcm11351-root-ccu
+ - brcm,bcm11351-slave-ccu
+ - brcm,bcm21664-aon-ccu
+ - brcm,bcm21664-master-ccu
+ - brcm,bcm21664-root-ccu
+ - brcm,bcm21664-slave-ccu
+
+ reg:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 1
+
+ clock-output-names:
+ minItems: 1
+ maxItems: 10
+
+required:
+ - compatible
+ - reg
+ - '#clock-cells'
+ - clock-output-names
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: brcm,bcm11351-aon-ccu
+ then:
+ properties:
+ clock-output-names:
+ items:
+ - const: hub_timer
+ - const: pmu_bsc
+ - const: pmu_bsc_var
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: brcm,bcm11351-hub-ccu
+ then:
+ properties:
+ clock-output-names:
+ const: tmon_1m
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: brcm,bcm11351-master-ccu
+ then:
+ properties:
+ clock-output-names:
+ items:
+ - const: sdio1
+ - const: sdio2
+ - const: sdio3
+ - const: sdio4
+ - const: usb_ic
+ - const: hsic2_48m
+ - const: hsic2_12m
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - brcm,bcm11351-root-ccu
+ - brcm,bcm21664-root-ccu
+ then:
+ properties:
+ clock-output-names:
+ const: frac_1m
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: brcm,bcm11351-slave-ccu
+ then:
+ properties:
+ clock-output-names:
+ items:
+ - const: uartb
+ - const: uartb2
+ - const: uartb3
+ - const: uartb4
+ - const: ssp0
+ - const: ssp2
+ - const: bsc1
+ - const: bsc2
+ - const: bsc3
+ - const: pwm
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: brcm,bcm21664-aon-ccu
+ then:
+ properties:
+ clock-output-names:
+ const: hub_timer
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: brcm,bcm21664-master-ccu
+ then:
+ properties:
+ clock-output-names:
+ items:
+ - const: sdio1
+ - const: sdio2
+ - const: sdio3
+ - const: sdio4
+ - const: sdio1_sleep
+ - const: sdio2_sleep
+ - const: sdio3_sleep
+ - const: sdio4_sleep
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: brcm,bcm21664-slave-ccu
+ then:
+ properties:
+ clock-output-names:
+ items:
+ - const: uartb
+ - const: uartb2
+ - const: uartb3
+ - const: bsc1
+ - const: bsc2
+ - const: bsc3
+ - const: bsc4
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-controller@3e011000 {
+ compatible = "brcm,bcm11351-slave-ccu";
+ reg = <0x3e011000 0x0f00>;
+ #clock-cells = <1>;
+ clock-output-names = "uartb",
+ "uartb2",
+ "uartb3",
+ "uartb4",
+ "ssp0",
+ "ssp2",
+ "bsc1",
+ "bsc2",
+ "bsc3",
+ "pwm";
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/canaan,k210-clk.yaml b/Documentation/devicetree/bindings/clock/canaan,k210-clk.yaml
index 998e5cce652f..380cb6d80025 100644
--- a/Documentation/devicetree/bindings/clock/canaan,k210-clk.yaml
+++ b/Documentation/devicetree/bindings/clock/canaan,k210-clk.yaml
@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Canaan Kendryte K210 Clock
maintainers:
- - Damien Le Moal <damien.lemoal@wdc.com>
+ - Damien Le Moal <dlemoal@kernel.org>
description: |
Canaan Kendryte K210 SoC clocks driver bindings. The clock
diff --git a/Documentation/devicetree/bindings/clock/cirrus,ep7209-clk.yaml b/Documentation/devicetree/bindings/clock/cirrus,ep7209-clk.yaml
new file mode 100644
index 000000000000..fbd0d50d46a8
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/cirrus,ep7209-clk.yaml
@@ -0,0 +1,47 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/cirrus,ep7209-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cirrus Logic CLPS711X Clock Controller
+
+maintainers:
+ - Alexander Shiyan <shc_work@mail.ru>
+
+description:
+ See include/dt-bindings/clock/clps711x-clock.h for the full list of CLPS711X
+ clock IDs.
+
+properties:
+ compatible:
+ items:
+ - const: cirrus,ep7312-clk
+ - const: cirrus,ep7209-clk
+
+ reg:
+ maxItems: 1
+
+ startup-frequency:
+ description: Factory set CPU startup frequency in HZ.
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ "#clock-cells":
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - startup-frequency
+ - "#clock-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-controller@80000000 {
+ compatible = "cirrus,ep7312-clk", "cirrus,ep7209-clk";
+ reg = <0x80000000 0xc000>;
+ #clock-cells = <1>;
+ startup-frequency = <73728000>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/cirrus,lochnagar.yaml b/Documentation/devicetree/bindings/clock/cirrus,lochnagar.yaml
index 59de125647ec..ccff74eda9fb 100644
--- a/Documentation/devicetree/bindings/clock/cirrus,lochnagar.yaml
+++ b/Documentation/devicetree/bindings/clock/cirrus,lochnagar.yaml
@@ -67,9 +67,9 @@ properties:
minItems: 1
maxItems: 19
- clocks: true
- assigned-clocks: true
- assigned-clock-parents: true
+ clocks:
+ minItems: 1
+ maxItems: 19
additionalProperties: false
diff --git a/Documentation/devicetree/bindings/clock/clps711x-clock.txt b/Documentation/devicetree/bindings/clock/clps711x-clock.txt
deleted file mode 100644
index f1bd53f79d91..000000000000
--- a/Documentation/devicetree/bindings/clock/clps711x-clock.txt
+++ /dev/null
@@ -1,19 +0,0 @@
-* Clock bindings for the Cirrus Logic CLPS711X CPUs
-
-Required properties:
-- compatible : Shall contain "cirrus,ep7209-clk".
-- reg : Address of the internal register set.
-- startup-frequency: Factory set CPU startup frequency in HZ.
-- #clock-cells : Should be <1>.
-
-The clock consumer should specify the desired clock by having the clock
-ID in its "clocks" phandle cell. See include/dt-bindings/clock/clps711x-clock.h
-for the full list of CLPS711X clock IDs.
-
-Example:
- clks: clks@80000000 {
- #clock-cells = <1>;
- compatible = "cirrus,ep7312-clk", "cirrus,ep7209-clk";
- reg = <0x80000000 0xc000>;
- startup-frequency = <73728000>;
- };
diff --git a/Documentation/devicetree/bindings/clock/dove-divider-clock.txt b/Documentation/devicetree/bindings/clock/dove-divider-clock.txt
deleted file mode 100644
index 217871f483c0..000000000000
--- a/Documentation/devicetree/bindings/clock/dove-divider-clock.txt
+++ /dev/null
@@ -1,28 +0,0 @@
-PLL divider based Dove clocks
-
-Marvell Dove has a 2GHz PLL, which feeds into a set of dividers to provide
-high speed clocks for a number of peripherals. These dividers are part of
-the PMU, and thus this node should be a child of the PMU node.
-
-The following clocks are provided:
-
-ID Clock
--------------
-0 AXI bus clock
-1 GPU clock
-2 VMeta clock
-3 LCD clock
-
-Required properties:
-- compatible : shall be "marvell,dove-divider-clock"
-- reg : shall be the register address of the Core PLL and Clock Divider
- Control 0 register. This will cover that register, as well as the
- Core PLL and Clock Divider Control 1 register. Thus, it will have
- a size of 8.
-- #clock-cells : from common clock binding; shall be set to 1
-
-divider_clk: core-clock@64 {
- compatible = "marvell,dove-divider-clock";
- reg = <0x0064 0x8>;
- #clock-cells = <1>;
-};
diff --git a/Documentation/devicetree/bindings/clock/fixed-clock.yaml b/Documentation/devicetree/bindings/clock/fixed-clock.yaml
index b0a4fb8256e2..90fb10660684 100644
--- a/Documentation/devicetree/bindings/clock/fixed-clock.yaml
+++ b/Documentation/devicetree/bindings/clock/fixed-clock.yaml
@@ -11,6 +11,15 @@ maintainers:
- Stephen Boyd <sboyd@kernel.org>
properties:
+ $nodename:
+ anyOf:
+ - description:
+ Preferred name is 'clock-<freq>' with <freq> being the output
+ frequency as defined in the 'clock-frequency' property.
+ pattern: "^clock-([0-9]+|[a-z0-9-]+)$"
+ - description: Any name allowed
+ deprecated: true
+
compatible:
const: fixed-clock
diff --git a/Documentation/devicetree/bindings/clock/fixed-factor-clock.yaml b/Documentation/devicetree/bindings/clock/fixed-factor-clock.yaml
index 8f71ab300470..4afdb1c98f5f 100644
--- a/Documentation/devicetree/bindings/clock/fixed-factor-clock.yaml
+++ b/Documentation/devicetree/bindings/clock/fixed-factor-clock.yaml
@@ -11,6 +11,15 @@ maintainers:
- Stephen Boyd <sboyd@kernel.org>
properties:
+ $nodename:
+ anyOf:
+ - description:
+ If the frequency is fixed, the preferred name is 'clock-<freq>' with
+ <freq> being the output frequency.
+ pattern: "^clock-([0-9]+|[0-9a-z-]+)$"
+ - description: Any name allowed
+ deprecated: true
+
compatible:
enum:
- fixed-factor-clock
diff --git a/Documentation/devicetree/bindings/clock/fsl,imx8-acm.yaml b/Documentation/devicetree/bindings/clock/fsl,imx8-acm.yaml
new file mode 100644
index 000000000000..07b9d21719c4
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/fsl,imx8-acm.yaml
@@ -0,0 +1,282 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/fsl,imx8-acm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP i.MX8 Audio Clock Mux
+
+maintainers:
+ - Shengjiu Wang <shengjiu.wang@nxp.com>
+
+description: |
+ NXP i.MX8 Audio Clock Mux is dedicated clock muxing IP
+ used to control Audio related clock on the SoC.
+
+properties:
+ compatible:
+ enum:
+ - fsl,imx8dxl-acm
+ - fsl,imx8qm-acm
+ - fsl,imx8qxp-acm
+
+ reg:
+ maxItems: 1
+
+ power-domains:
+ minItems: 13
+ maxItems: 21
+
+ '#clock-cells':
+ const: 1
+ description:
+ The clock consumer should specify the desired clock by having the clock
+ ID in its "clocks" phandle cell. See include/dt-bindings/clock/imx8-clock.h
+ for the full list of i.MX8 ACM clock IDs.
+
+ clocks:
+ minItems: 13
+ maxItems: 27
+
+ clock-names:
+ minItems: 13
+ maxItems: 27
+
+required:
+ - compatible
+ - reg
+ - power-domains
+ - '#clock-cells'
+ - clocks
+ - clock-names
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - fsl,imx8qxp-acm
+ then:
+ properties:
+ power-domains:
+ items:
+ - description: power domain of IMX_SC_R_AUDIO_CLK_0
+ - description: power domain of IMX_SC_R_AUDIO_CLK_1
+ - description: power domain of IMX_SC_R_MCLK_OUT_0
+ - description: power domain of IMX_SC_R_MCLK_OUT_1
+ - description: power domain of IMX_SC_R_AUDIO_PLL_0
+ - description: power domain of IMX_SC_R_AUDIO_PLL_1
+ - description: power domain of IMX_SC_R_ASRC_0
+ - description: power domain of IMX_SC_R_ASRC_1
+ - description: power domain of IMX_SC_R_ESAI_0
+ - description: power domain of IMX_SC_R_SAI_0
+ - description: power domain of IMX_SC_R_SAI_1
+ - description: power domain of IMX_SC_R_SAI_2
+ - description: power domain of IMX_SC_R_SAI_3
+ - description: power domain of IMX_SC_R_SAI_4
+ - description: power domain of IMX_SC_R_SAI_5
+ - description: power domain of IMX_SC_R_SPDIF_0
+ - description: power domain of IMX_SC_R_MQS_0
+
+ clocks:
+ minItems: 18
+ maxItems: 18
+
+ clock-names:
+ items:
+ - const: aud_rec_clk0_lpcg_clk
+ - const: aud_rec_clk1_lpcg_clk
+ - const: aud_pll_div_clk0_lpcg_clk
+ - const: aud_pll_div_clk1_lpcg_clk
+ - const: ext_aud_mclk0
+ - const: ext_aud_mclk1
+ - const: esai0_rx_clk
+ - const: esai0_rx_hf_clk
+ - const: esai0_tx_clk
+ - const: esai0_tx_hf_clk
+ - const: spdif0_rx
+ - const: sai0_rx_bclk
+ - const: sai0_tx_bclk
+ - const: sai1_rx_bclk
+ - const: sai1_tx_bclk
+ - const: sai2_rx_bclk
+ - const: sai3_rx_bclk
+ - const: sai4_rx_bclk
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - fsl,imx8qm-acm
+ then:
+ properties:
+ power-domains:
+ items:
+ - description: power domain of IMX_SC_R_AUDIO_CLK_0
+ - description: power domain of IMX_SC_R_AUDIO_CLK_1
+ - description: power domain of IMX_SC_R_MCLK_OUT_0
+ - description: power domain of IMX_SC_R_MCLK_OUT_1
+ - description: power domain of IMX_SC_R_AUDIO_PLL_0
+ - description: power domain of IMX_SC_R_AUDIO_PLL_1
+ - description: power domain of IMX_SC_R_ASRC_0
+ - description: power domain of IMX_SC_R_ASRC_1
+ - description: power domain of IMX_SC_R_ESAI_0
+ - description: power domain of IMX_SC_R_ESAI_1
+ - description: power domain of IMX_SC_R_SAI_0
+ - description: power domain of IMX_SC_R_SAI_1
+ - description: power domain of IMX_SC_R_SAI_2
+ - description: power domain of IMX_SC_R_SAI_3
+ - description: power domain of IMX_SC_R_SAI_4
+ - description: power domain of IMX_SC_R_SAI_5
+ - description: power domain of IMX_SC_R_SAI_6
+ - description: power domain of IMX_SC_R_SAI_7
+ - description: power domain of IMX_SC_R_SPDIF_0
+ - description: power domain of IMX_SC_R_SPDIF_1
+ - description: power domain of IMX_SC_R_MQS_0
+
+ clocks:
+ minItems: 27
+ maxItems: 27
+
+ clock-names:
+ items:
+ - const: aud_rec_clk0_lpcg_clk
+ - const: aud_rec_clk1_lpcg_clk
+ - const: aud_pll_div_clk0_lpcg_clk
+ - const: aud_pll_div_clk1_lpcg_clk
+ - const: mlb_clk
+ - const: hdmi_rx_mclk
+ - const: ext_aud_mclk0
+ - const: ext_aud_mclk1
+ - const: esai0_rx_clk
+ - const: esai0_rx_hf_clk
+ - const: esai0_tx_clk
+ - const: esai0_tx_hf_clk
+ - const: esai1_rx_clk
+ - const: esai1_rx_hf_clk
+ - const: esai1_tx_clk
+ - const: esai1_tx_hf_clk
+ - const: spdif0_rx
+ - const: spdif1_rx
+ - const: sai0_rx_bclk
+ - const: sai0_tx_bclk
+ - const: sai1_rx_bclk
+ - const: sai1_tx_bclk
+ - const: sai2_rx_bclk
+ - const: sai3_rx_bclk
+ - const: sai4_rx_bclk
+ - const: sai5_tx_bclk
+ - const: sai6_rx_bclk
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - fsl,imx8dxl-acm
+ then:
+ properties:
+ power-domains:
+ items:
+ - description: power domain of IMX_SC_R_AUDIO_CLK_0
+ - description: power domain of IMX_SC_R_AUDIO_CLK_1
+ - description: power domain of IMX_SC_R_MCLK_OUT_0
+ - description: power domain of IMX_SC_R_MCLK_OUT_1
+ - description: power domain of IMX_SC_R_AUDIO_PLL_0
+ - description: power domain of IMX_SC_R_AUDIO_PLL_1
+ - description: power domain of IMX_SC_R_ASRC_0
+ - description: power domain of IMX_SC_R_SAI_0
+ - description: power domain of IMX_SC_R_SAI_1
+ - description: power domain of IMX_SC_R_SAI_2
+ - description: power domain of IMX_SC_R_SAI_3
+ - description: power domain of IMX_SC_R_SPDIF_0
+ - description: power domain of IMX_SC_R_MQS_0
+
+ clocks:
+ minItems: 13
+ maxItems: 13
+
+ clock-names:
+ items:
+ - const: aud_rec_clk0_lpcg_clk
+ - const: aud_rec_clk1_lpcg_clk
+ - const: aud_pll_div_clk0_lpcg_clk
+ - const: aud_pll_div_clk1_lpcg_clk
+ - const: ext_aud_mclk0
+ - const: ext_aud_mclk1
+ - const: spdif0_rx
+ - const: sai0_rx_bclk
+ - const: sai0_tx_bclk
+ - const: sai1_rx_bclk
+ - const: sai1_tx_bclk
+ - const: sai2_rx_bclk
+ - const: sai3_rx_bclk
+
+additionalProperties: false
+
+examples:
+ # Clock Control Module node:
+ - |
+ #include <dt-bindings/clock/imx8-lpcg.h>
+ #include <dt-bindings/firmware/imx/rsrc.h>
+
+ clock-controller@59e00000 {
+ compatible = "fsl,imx8qxp-acm";
+ reg = <0x59e00000 0x1d0000>;
+ #clock-cells = <1>;
+ power-domains = <&pd IMX_SC_R_AUDIO_CLK_0>,
+ <&pd IMX_SC_R_AUDIO_CLK_1>,
+ <&pd IMX_SC_R_MCLK_OUT_0>,
+ <&pd IMX_SC_R_MCLK_OUT_1>,
+ <&pd IMX_SC_R_AUDIO_PLL_0>,
+ <&pd IMX_SC_R_AUDIO_PLL_1>,
+ <&pd IMX_SC_R_ASRC_0>,
+ <&pd IMX_SC_R_ASRC_1>,
+ <&pd IMX_SC_R_ESAI_0>,
+ <&pd IMX_SC_R_SAI_0>,
+ <&pd IMX_SC_R_SAI_1>,
+ <&pd IMX_SC_R_SAI_2>,
+ <&pd IMX_SC_R_SAI_3>,
+ <&pd IMX_SC_R_SAI_4>,
+ <&pd IMX_SC_R_SAI_5>,
+ <&pd IMX_SC_R_SPDIF_0>,
+ <&pd IMX_SC_R_MQS_0>;
+ clocks = <&aud_rec0_lpcg IMX_LPCG_CLK_0>,
+ <&aud_rec1_lpcg IMX_LPCG_CLK_0>,
+ <&aud_pll_div0_lpcg IMX_LPCG_CLK_0>,
+ <&aud_pll_div1_lpcg IMX_LPCG_CLK_0>,
+ <&clk_ext_aud_mclk0>,
+ <&clk_ext_aud_mclk1>,
+ <&clk_esai0_rx_clk>,
+ <&clk_esai0_rx_hf_clk>,
+ <&clk_esai0_tx_clk>,
+ <&clk_esai0_tx_hf_clk>,
+ <&clk_spdif0_rx>,
+ <&clk_sai0_rx_bclk>,
+ <&clk_sai0_tx_bclk>,
+ <&clk_sai1_rx_bclk>,
+ <&clk_sai1_tx_bclk>,
+ <&clk_sai2_rx_bclk>,
+ <&clk_sai3_rx_bclk>,
+ <&clk_sai4_rx_bclk>;
+ clock-names = "aud_rec_clk0_lpcg_clk",
+ "aud_rec_clk1_lpcg_clk",
+ "aud_pll_div_clk0_lpcg_clk",
+ "aud_pll_div_clk1_lpcg_clk",
+ "ext_aud_mclk0",
+ "ext_aud_mclk1",
+ "esai0_rx_clk",
+ "esai0_rx_hf_clk",
+ "esai0_tx_clk",
+ "esai0_tx_hf_clk",
+ "spdif0_rx",
+ "sai0_rx_bclk",
+ "sai0_tx_bclk",
+ "sai1_rx_bclk",
+ "sai1_tx_bclk",
+ "sai2_rx_bclk",
+ "sai3_rx_bclk",
+ "sai4_rx_bclk";
+ };
diff --git a/Documentation/devicetree/bindings/clock/fsl,imx8ulp-sim-lpav.yaml b/Documentation/devicetree/bindings/clock/fsl,imx8ulp-sim-lpav.yaml
new file mode 100644
index 000000000000..662e07528d76
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/fsl,imx8ulp-sim-lpav.yaml
@@ -0,0 +1,72 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/fsl,imx8ulp-sim-lpav.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP i.MX8ULP LPAV System Integration Module (SIM)
+
+maintainers:
+ - Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com>
+
+description:
+ The i.MX8ULP LPAV subsystem contains a block control module known as
+ SIM LPAV, which offers functionalities such as clock gating or reset
+ line assertion/de-assertion.
+
+properties:
+ compatible:
+ const: fsl,imx8ulp-sim-lpav
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 3
+
+ clock-names:
+ items:
+ - const: bus
+ - const: core
+ - const: plat
+
+ '#clock-cells':
+ const: 1
+
+ '#reset-cells':
+ const: 1
+
+ mux-controller:
+ $ref: /schemas/mux/reg-mux.yaml#
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - '#clock-cells'
+ - '#reset-cells'
+ - mux-controller
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/imx8ulp-clock.h>
+
+ clock-controller@2da50000 {
+ compatible = "fsl,imx8ulp-sim-lpav";
+ reg = <0x2da50000 0x10000>;
+ clocks = <&cgc2 IMX8ULP_CLK_LPAV_BUS_DIV>,
+ <&cgc2 IMX8ULP_CLK_HIFI_DIVCORE>,
+ <&cgc2 IMX8ULP_CLK_HIFI_DIVPLAT>;
+ clock-names = "bus", "core", "plat";
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+
+ mux-controller {
+ compatible = "reg-mux";
+ #mux-control-cells = <1>;
+ mux-reg-masks = <0x8 0x00000200>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/clock/fsl,imx93-anatop.yaml b/Documentation/devicetree/bindings/clock/fsl,imx93-anatop.yaml
new file mode 100644
index 000000000000..8a3b2476419a
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/fsl,imx93-anatop.yaml
@@ -0,0 +1,42 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/fsl,imx93-anatop.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP i.MX93 ANATOP Clock Module
+
+maintainers:
+ - Peng Fan <peng.fan@nxp.com>
+
+description: |
+ NXP i.MX93 ANATOP module which contains PLL and OSC to Clock Controller
+ Module.
+
+properties:
+ compatible:
+ items:
+ - const: fsl,imx93-anatop
+
+ reg:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-controller@44480000 {
+ compatible = "fsl,imx93-anatop";
+ reg = <0x44480000 0x2000>;
+ #clock-cells = <1>;
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/fsl,qoriq-clock-legacy.yaml b/Documentation/devicetree/bindings/clock/fsl,qoriq-clock-legacy.yaml
new file mode 100644
index 000000000000..97b96a1a5825
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/fsl,qoriq-clock-legacy.yaml
@@ -0,0 +1,84 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/fsl,qoriq-clock-legacy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Legacy Clock Block on Freescale QorIQ Platforms
+
+maintainers:
+ - Frank Li <Frank.Li@nxp.com>
+
+description: |
+ These nodes are deprecated. Kernels should continue to support
+ device trees with these nodes, but new device trees should not use them.
+
+ Most of the bindings are from the common clock binding[1].
+ [1] Documentation/devicetree/bindings/clock/clock-bindings.txt
+
+properties:
+ compatible:
+ enum:
+ - fsl,qoriq-core-pll-1.0
+ - fsl,qoriq-core-pll-2.0
+ - fsl,qoriq-core-mux-1.0
+ - fsl,qoriq-core-mux-2.0
+ - fsl,qoriq-sysclk-1.0
+ - fsl,qoriq-sysclk-2.0
+ - fsl,qoriq-platform-pll-1.0
+ - fsl,qoriq-platform-pll-2.0
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ minItems: 1
+ maxItems: 4
+
+ clock-names:
+ minItems: 1
+ maxItems: 4
+
+ clock-output-names:
+ minItems: 1
+ maxItems: 8
+
+ '#clock-cells':
+ minimum: 0
+ maximum: 1
+
+required:
+ - compatible
+ - '#clock-cells'
+
+additionalProperties: false
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - fsl,qoriq-sysclk-1.0
+ - fsl,qoriq-sysclk-2.0
+ then:
+ properties:
+ '#clock-cells':
+ const: 0
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - fsl,qoriq-core-pll-1.0
+ - fsl,qoriq-core-pll-2.0
+ then:
+ properties:
+ '#clock-cells':
+ const: 1
+ description: |
+ * 0 - equal to the PLL frequency
+ * 1 - equal to the PLL frequency divided by 2
+ * 2 - equal to the PLL frequency divided by 4
+
diff --git a/Documentation/devicetree/bindings/clock/fsl,qoriq-clock.yaml b/Documentation/devicetree/bindings/clock/fsl,qoriq-clock.yaml
new file mode 100644
index 000000000000..95a3e3b24267
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/fsl,qoriq-clock.yaml
@@ -0,0 +1,207 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/fsl,qoriq-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Clock Block on Freescale QorIQ Platforms
+
+maintainers:
+ - Frank Li <Frank.Li@nxp.com>
+
+description: |
+ Freescale QorIQ chips take primary clocking input from the external
+ SYSCLK signal. The SYSCLK input (frequency) is multiplied using
+ multiple phase locked loops (PLL) to create a variety of frequencies
+ which can then be passed to a variety of internal logic, including
+ cores and peripheral IP blocks.
+ Please refer to the Reference Manual for details.
+
+ All references to "1.0" and "2.0" refer to the QorIQ chassis version to
+ which the chip complies.
+
+ Chassis Version Example Chips
+ --------------- -------------
+ 1.0 p4080, p5020, p5040
+ 2.0 t4240
+
+ Clock Provider
+
+ The clockgen node should act as a clock provider, though in older device
+ trees the children of the clockgen node are the clock providers.
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - fsl,p2041-clockgen
+ - fsl,p3041-clockgen
+ - fsl,p4080-clockgen
+ - fsl,p5020-clockgen
+ - fsl,p5040-clockgen
+ - const: fsl,qoriq-clockgen-1.0
+ - items:
+ - enum:
+ - fsl,t1023-clockgen
+ - fsl,t1024-clockgen
+ - fsl,t1040-clockgen
+ - fsl,t1042-clockgen
+ - fsl,t2080-clockgen
+ - fsl,t2081-clockgen
+ - fsl,t4240-clockgen
+ - const: fsl,qoriq-clockgen-2.0
+ - items:
+ - enum:
+ - fsl,b4420-clockgen
+ - fsl,b4860-clockgen
+ - const: fsl,b4-clockgen
+ - items:
+ - enum:
+ - fsl,ls1012a-clockgen
+ - fsl,ls1021a-clockgen
+ - fsl,ls1028a-clockgen
+ - fsl,ls1043a-clockgen
+ - fsl,ls1046a-clockgen
+ - fsl,ls1088a-clockgen
+ - fsl,ls2080a-clockgen
+ - fsl,lx2160a-clockgen
+
+ reg:
+ maxItems: 1
+
+ ranges: true
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 1
+
+ '#clock-cells':
+ const: 2
+ description: |
+ The first cell of the clock specifier is the clock type, and the
+ second cell is the clock index for the specified type.
+
+ Type# Name Index Cell
+ 0 sysclk must be 0
+ 1 cmux index (n in CLKCnCSR)
+ 2 hwaccel index (n in CLKCGnHWACSR)
+ 3 fman 0 for fm1, 1 for fm2
+ 4 platform pll n=pll/(n+1). For example, when n=1,
+ that means output_freq=PLL_freq/2.
+ 5 coreclk must be 0
+
+ clock-frequency:
+ description: Input system clock frequency (SYSCLK)
+
+ clocks:
+ items:
+ - description:
+ sysclk may be provided as an input clock. Either clock-frequency
+ or clocks must be provided.
+ - description:
+ A second input clock, called "coreclk", may be provided if
+ core PLLs are based on a different input clock from the
+ platform PLL.
+ minItems: 1
+
+ clock-names:
+ items:
+ - const: sysclk
+ - const: coreclk
+
+patternProperties:
+ '^mux[0-9]@[a-f0-9]+$':
+ deprecated: true
+ $ref: fsl,qoriq-clock-legacy.yaml
+
+ '^sysclk(-[a-z0-9]+)?$':
+ deprecated: true
+ $ref: fsl,qoriq-clock-legacy.yaml
+
+ '^pll[0-9]@[a-f0-9]+$':
+ deprecated: true
+ $ref: fsl,qoriq-clock-legacy.yaml
+
+ '^platform\-pll@[a-f0-9]+$':
+ deprecated: true
+ $ref: fsl,qoriq-clock-legacy.yaml
+
+required:
+ - compatible
+ - reg
+ - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ /* clock provider example */
+ global-utilities@e1000 {
+ compatible = "fsl,p5020-clockgen", "fsl,qoriq-clockgen-1.0";
+ reg = <0xe1000 0x1000>;
+ clock-frequency = <133333333>;
+ #clock-cells = <2>;
+ };
+
+ - |
+ /* Legacy example */
+ global-utilities@e1000 {
+ compatible = "fsl,p5020-clockgen", "fsl,qoriq-clockgen-1.0";
+ reg = <0xe1000 0x1000>;
+ ranges = <0x0 0xe1000 0x1000>;
+ clock-frequency = <133333333>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ #clock-cells = <2>;
+
+ sysclk: sysclk {
+ compatible = "fsl,qoriq-sysclk-1.0";
+ clock-output-names = "sysclk";
+ #clock-cells = <0>;
+ };
+
+ pll0: pll0@800 {
+ compatible = "fsl,qoriq-core-pll-1.0";
+ reg = <0x800 0x4>;
+ #clock-cells = <1>;
+ clocks = <&sysclk>;
+ clock-output-names = "pll0", "pll0-div2";
+ };
+
+ pll1: pll1@820 {
+ compatible = "fsl,qoriq-core-pll-1.0";
+ reg = <0x820 0x4>;
+ #clock-cells = <1>;
+ clocks = <&sysclk>;
+ clock-output-names = "pll1", "pll1-div2";
+ };
+
+ mux0: mux0@0 {
+ compatible = "fsl,qoriq-core-mux-1.0";
+ reg = <0x0 0x4>;
+ #clock-cells = <0>;
+ clocks = <&pll0 0>, <&pll0 1>, <&pll1 0>, <&pll1 1>;
+ clock-names = "pll0", "pll0-div2", "pll1", "pll1-div2";
+ clock-output-names = "cmux0";
+ };
+
+ mux1: mux1@20 {
+ compatible = "fsl,qoriq-core-mux-1.0";
+ reg = <0x20 0x4>;
+ #clock-cells = <0>;
+ clocks = <&pll0 0>, <&pll0 1>, <&pll1 0>, <&pll1 1>;
+ clock-names = "pll0", "pll0-div2", "pll1", "pll1-div2";
+ clock-output-names = "cmux1";
+ };
+
+ platform-pll@c00 {
+ #clock-cells = <1>;
+ reg = <0xc00 0x4>;
+ compatible = "fsl,qoriq-platform-pll-1.0";
+ clocks = <&sysclk>;
+ clock-output-names = "platform-pll", "platform-pll-div2";
+ };
+ };
diff --git a/Documentation/devicetree/bindings/clock/fsl,vf610-ccm.yaml b/Documentation/devicetree/bindings/clock/fsl,vf610-ccm.yaml
new file mode 100644
index 000000000000..29ae5be51acf
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/fsl,vf610-ccm.yaml
@@ -0,0 +1,58 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/fsl,vf610-ccm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Clock for Freescale Vybrid VF610 SOC
+
+description:
+ The clock consumer should specify the desired clock by having the clock
+ ID in its "clocks" phandle cell. See include/dt-bindings/clock/vf610-clock.h
+ for the full list of VF610 clock IDs
+
+maintainers:
+ - Frank Li <Frank.Li@nxp.com>
+
+properties:
+ compatible:
+ const: fsl,vf610-ccm
+
+ reg:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 1
+
+ clocks:
+ items:
+ - description: external crystal oscillator 32KHz, recommended
+ - description: external crystal oscillator 24MHz, recommended
+ - description: audio
+ - description: enet
+ minItems: 2
+
+ clock-names:
+ items:
+ - const: sxosc
+ - const: fxosc
+ - const: enet_ext
+ - const: audio_ext
+ minItems: 2
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-controller@4006b000 {
+ compatible = "fsl,vf610-ccm";
+ reg = <0x4006b000 0x1000>;
+ #clock-cells = <1>;
+ clocks = <&sxosc>, <&fxosc>;
+ clock-names = "sxosc", "fxosc";
+ };
+
diff --git a/Documentation/devicetree/bindings/clock/fujitsu,mb86s70-crg11.txt b/Documentation/devicetree/bindings/clock/fujitsu,mb86s70-crg11.txt
deleted file mode 100644
index 332396265689..000000000000
--- a/Documentation/devicetree/bindings/clock/fujitsu,mb86s70-crg11.txt
+++ /dev/null
@@ -1,26 +0,0 @@
-Fujitsu CRG11 clock driver bindings
------------------------------------
-
-Required properties :
-- compatible : Shall contain "fujitsu,mb86s70-crg11"
-- #clock-cells : Shall be 3 {cntrlr domain port}
-
-The consumer specifies the desired clock pointing to its phandle.
-
-Example:
-
- clock: crg11 {
- compatible = "fujitsu,mb86s70-crg11";
- #clock-cells = <3>;
- };
-
- mhu: mhu0@2b1f0000 {
- #mbox-cells = <1>;
- compatible = "arm,mhu";
- reg = <0 0x2B1F0000 0x1000>;
- interrupts = <0 36 4>, /* LP Non-Sec */
- <0 35 4>, /* HP Non-Sec */
- <0 37 4>; /* Secure */
- clocks = <&clock 0 2 1>; /* Cntrlr:0 Domain:2 Port:1 */
- clock-names = "clk";
- };
diff --git a/Documentation/devicetree/bindings/clock/gated-fixed-clock.yaml b/Documentation/devicetree/bindings/clock/gated-fixed-clock.yaml
new file mode 100644
index 000000000000..d3e0faf3c64d
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/gated-fixed-clock.yaml
@@ -0,0 +1,49 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/gated-fixed-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Gated Fixed clock
+
+maintainers:
+ - Heiko Stuebner <heiko@sntech.de>
+
+properties:
+ compatible:
+ const: gated-fixed-clock
+
+ "#clock-cells":
+ const: 0
+
+ clock-frequency: true
+
+ clock-output-names:
+ maxItems: 1
+
+ enable-gpios:
+ description:
+ Contains a single GPIO specifier for the GPIO that enables and disables
+ the oscillator.
+ maxItems: 1
+
+ vdd-supply:
+ description: handle of the regulator that provides the supply voltage
+
+required:
+ - compatible
+ - "#clock-cells"
+ - clock-frequency
+ - vdd-supply
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-1000000000 {
+ compatible = "gated-fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <1000000000>;
+ vdd-supply = <&reg_vdd>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/google,gs101-clock.yaml b/Documentation/devicetree/bindings/clock/google,gs101-clock.yaml
new file mode 100644
index 000000000000..31e106ef913d
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/google,gs101-clock.yaml
@@ -0,0 +1,184 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/google,gs101-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Google GS101 SoC clock controller
+
+maintainers:
+ - Peter Griffin <peter.griffin@linaro.org>
+
+description: |
+ Google GS101 clock controller is comprised of several CMU units, generating
+ clocks for different domains. Those CMU units are modeled as separate device
+ tree nodes, and might depend on each other. The root clock in that clock tree
+ is OSCCLK (24.576 MHz). That external clock must be defined as a fixed-rate
+ clock in dts.
+
+ CMU_TOP is a top-level CMU, where all base clocks are prepared using PLLs and
+ dividers; all other leaf clocks (other CMUs) are usually derived from CMU_TOP.
+
+ Each clock is assigned an identifier and client nodes can use this identifier
+ to specify the clock which they consume. All clocks available for usage
+ in clock consumer nodes are defined as preprocessor macros in
+ 'dt-bindings/clock/gs101.h' header.
+
+properties:
+ compatible:
+ enum:
+ - google,gs101-cmu-top
+ - google,gs101-cmu-apm
+ - google,gs101-cmu-misc
+ - google,gs101-cmu-hsi0
+ - google,gs101-cmu-hsi2
+ - google,gs101-cmu-peric0
+ - google,gs101-cmu-peric1
+
+ clocks:
+ minItems: 1
+ maxItems: 5
+
+ clock-names:
+ minItems: 1
+ maxItems: 5
+
+ "#clock-cells":
+ const: 1
+
+ power-domains:
+ maxItems: 1
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - "#clock-cells"
+ - clocks
+ - clock-names
+ - reg
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - google,gs101-cmu-top
+ - google,gs101-cmu-apm
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (24.576 MHz)
+
+ clock-names:
+ items:
+ - const: oscclk
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: google,gs101-cmu-hsi0
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (24.576 MHz)
+ - description: HSI0 bus clock (from CMU_TOP)
+ - description: DPGTC (from CMU_TOP)
+ - description: USB DRD controller clock (from CMU_TOP)
+ - description: USB Display Port debug clock (from CMU_TOP)
+
+ clock-names:
+ items:
+ - const: oscclk
+ - const: bus
+ - const: dpgtc
+ - const: usb31drd
+ - const: usbdpdbg
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - google,gs101-cmu-hsi2
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (24.576 MHz)
+ - description: High Speed Interface bus clock (from CMU_TOP)
+ - description: High Speed Interface pcie clock (from CMU_TOP)
+ - description: High Speed Interface ufs clock (from CMU_TOP)
+ - description: High Speed Interface mmc clock (from CMU_TOP)
+
+ clock-names:
+ items:
+ - const: oscclk
+ - const: bus
+ - const: pcie
+ - const: ufs
+ - const: mmc
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: google,gs101-cmu-misc
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: Misc bus clock (from CMU_TOP)
+ - description: Misc sss clock (from CMU_TOP)
+
+ clock-names:
+ items:
+ - const: bus
+ - const: sss
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - google,gs101-cmu-peric0
+ - google,gs101-cmu-peric1
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (24.576 MHz)
+ - description: Connectivity Peripheral 0/1 bus clock (from CMU_TOP)
+ - description: Connectivity Peripheral 0/1 IP clock (from CMU_TOP)
+
+ clock-names:
+ items:
+ - const: oscclk
+ - const: bus
+ - const: ip
+
+additionalProperties: false
+
+examples:
+ # Clock controller node for CMU_TOP
+ - |
+ #include <dt-bindings/clock/google,gs101.h>
+
+ cmu_top: clock-controller@1e080000 {
+ compatible = "google,gs101-cmu-top";
+ reg = <0x1e080000 0x8000>;
+ #clock-cells = <1>;
+ clocks = <&ext_24_5m>;
+ clock-names = "oscclk";
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/hi3620-clock.txt b/Documentation/devicetree/bindings/clock/hi3620-clock.txt
deleted file mode 100644
index dad6269f52c5..000000000000
--- a/Documentation/devicetree/bindings/clock/hi3620-clock.txt
+++ /dev/null
@@ -1,20 +0,0 @@
-* Hisilicon Hi3620 Clock Controller
-
-The Hi3620 clock controller generates and supplies clock to various
-controllers within the Hi3620 SoC.
-
-Required Properties:
-
-- compatible: should be one of the following.
- - "hisilicon,hi3620-clock" - controller compatible with Hi3620 SoC.
- - "hisilicon,hi3620-mmc-clock" - controller specific for Hi3620 mmc.
-
-- reg: physical base address of the controller and length of memory mapped
- region.
-
-- #clock-cells: should be 1.
-
-Each clock is assigned an identifier and client nodes use this identifier
-to specify the clock which they consume.
-
-All these identifier could be found in <dt-bindings/clock/hi3620-clock.h>.
diff --git a/Documentation/devicetree/bindings/clock/hix5hd2-clock.txt b/Documentation/devicetree/bindings/clock/hix5hd2-clock.txt
deleted file mode 100644
index 4733e58e491b..000000000000
--- a/Documentation/devicetree/bindings/clock/hix5hd2-clock.txt
+++ /dev/null
@@ -1,30 +0,0 @@
-* Hisilicon Hix5hd2 Clock Controller
-
-The hix5hd2 clock controller generates and supplies clock to various
-controllers within the hix5hd2 SoC.
-
-Required Properties:
-
-- compatible: should be "hisilicon,hix5hd2-clock"
-- reg: Address and length of the register set
-- #clock-cells: Should be <1>
-
-Each clock is assigned an identifier and client nodes use this identifier
-to specify the clock which they consume.
-
-All these identifier could be found in <dt-bindings/clock/hix5hd2-clock.h>.
-
-Examples:
- clock: clock@f8a22000 {
- compatible = "hisilicon,hix5hd2-clock";
- reg = <0xf8a22000 0x1000>;
- #clock-cells = <1>;
- };
-
- uart0: uart@f8b00000 {
- compatible = "arm,pl011", "arm,primecell";
- reg = <0xf8b00000 0x1000>;
- interrupts = <0 49 4>;
- clocks = <&clock HIX5HD2_FIXED_83M>;
- clock-names = "apb_pclk";
- };
diff --git a/Documentation/devicetree/bindings/clock/idt,versaclock5.yaml b/Documentation/devicetree/bindings/clock/idt,versaclock5.yaml
index a2c6eea9871d..8b400da05fbe 100644
--- a/Documentation/devicetree/bindings/clock/idt,versaclock5.yaml
+++ b/Documentation/devicetree/bindings/clock/idt,versaclock5.yaml
@@ -126,8 +126,6 @@ required:
- compatible
- reg
- '#clock-cells'
- - idt,shutdown
- - idt,output-enable-active
allOf:
- if:
diff --git a/Documentation/devicetree/bindings/clock/img,pistachio-clk.yaml b/Documentation/devicetree/bindings/clock/img,pistachio-clk.yaml
new file mode 100644
index 000000000000..e70feee8e894
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/img,pistachio-clk.yaml
@@ -0,0 +1,136 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/img,pistachio-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Imagination Technologies Pistachio SoC clock controllers
+
+maintainers:
+ - Andrew Bresticker <abrestic@chromium.org>
+
+description: |
+ Pistachio has four clock controllers (core clock, peripheral clock, peripheral
+ general control, and top general control) which are instantiated individually
+ from the device-tree.
+
+ Core clock controller:
+
+ The core clock controller generates clocks for the CPU, RPU (WiFi + BT
+ co-processor), audio, and several peripherals.
+
+ Peripheral clock controller:
+
+ The peripheral clock controller generates clocks for the DDR, ROM, and other
+ peripherals. The peripheral system clock ("periph_sys") generated by the core
+ clock controller is the input clock to the peripheral clock controller.
+
+ Peripheral general control:
+
+ The peripheral general control block generates system interface clocks and
+ resets for various peripherals. It also contains miscellaneous peripheral
+ control registers.
+
+ Top-level general control:
+
+ The top-level general control block contains miscellaneous control registers
+ and gates for the external clocks "audio_clk_in" and "enet_clk_in".
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - img,pistachio-clk
+ - img,pistachio-clk-periph
+ - img,pistachio-cr-periph
+ - img,pistachio-cr-top
+
+ reg:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 1
+
+ clocks:
+ minItems: 1
+ maxItems: 3
+
+ clock-names:
+ minItems: 1
+ maxItems: 3
+
+required:
+ - compatible
+ - reg
+ - '#clock-cells'
+ - clocks
+ - clock-names
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: img,pistachio-clk
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External 52Mhz oscillator
+ - description: Alternate audio reference clock
+ - description: Alternate ethernet PHY clock
+
+ clock-names:
+ items:
+ - const: xtal
+ - const: audio_refclk_ext_gate
+ - const: ext_enet_in_gate
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: img,pistachio-clk-periph
+ then:
+ properties:
+ clocks:
+ items:
+ - description: Peripheral system clock
+
+ clock-names:
+ items:
+ - const: periph_sys_core
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: img,pistachio-cr-periph
+ then:
+ properties:
+ clocks:
+ items:
+ - description: System interface clock
+
+ clock-names:
+ items:
+ - const: sys
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: img,pistachio-cr-top
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External audio reference clock
+ - description: External ethernet PHY clock
+
+ clock-names:
+ items:
+ - const: audio_clk_in
+ - const: enet_clk_in
+
+additionalProperties: false
diff --git a/Documentation/devicetree/bindings/clock/imx6q-clock.yaml b/Documentation/devicetree/bindings/clock/imx6q-clock.yaml
index bae4fcb3aacc..cd3c04c883df 100644
--- a/Documentation/devicetree/bindings/clock/imx6q-clock.yaml
+++ b/Documentation/devicetree/bindings/clock/imx6q-clock.yaml
@@ -7,7 +7,8 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Freescale i.MX6 Quad Clock Controller
maintainers:
- - Anson Huang <Anson.Huang@nxp.com>
+ - Abel Vesa <abelvesa@kernel.org>
+ - Peng Fan <peng.fan@nxp.com>
properties:
compatible:
diff --git a/Documentation/devicetree/bindings/clock/imx6sl-clock.yaml b/Documentation/devicetree/bindings/clock/imx6sl-clock.yaml
index c85ff6ea3d24..6713bbb14f30 100644
--- a/Documentation/devicetree/bindings/clock/imx6sl-clock.yaml
+++ b/Documentation/devicetree/bindings/clock/imx6sl-clock.yaml
@@ -7,7 +7,8 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Freescale i.MX6 SoloLite Clock Controller
maintainers:
- - Anson Huang <Anson.Huang@nxp.com>
+ - Abel Vesa <abelvesa@kernel.org>
+ - Peng Fan <peng.fan@nxp.com>
properties:
compatible:
diff --git a/Documentation/devicetree/bindings/clock/imx6sll-clock.yaml b/Documentation/devicetree/bindings/clock/imx6sll-clock.yaml
index 6b549ed1493c..6d64cf9463c9 100644
--- a/Documentation/devicetree/bindings/clock/imx6sll-clock.yaml
+++ b/Documentation/devicetree/bindings/clock/imx6sll-clock.yaml
@@ -7,7 +7,8 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Freescale i.MX6 SLL Clock Controller
maintainers:
- - Anson Huang <Anson.Huang@nxp.com>
+ - Abel Vesa <abelvesa@kernel.org>
+ - Peng Fan <peng.fan@nxp.com>
properties:
compatible:
diff --git a/Documentation/devicetree/bindings/clock/imx6sx-clock.yaml b/Documentation/devicetree/bindings/clock/imx6sx-clock.yaml
index 55dcad18b7c6..77afa4b81cf7 100644
--- a/Documentation/devicetree/bindings/clock/imx6sx-clock.yaml
+++ b/Documentation/devicetree/bindings/clock/imx6sx-clock.yaml
@@ -7,7 +7,8 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Freescale i.MX6 SoloX Clock Controller
maintainers:
- - Anson Huang <Anson.Huang@nxp.com>
+ - Abel Vesa <abelvesa@kernel.org>
+ - Peng Fan <peng.fan@nxp.com>
properties:
compatible:
diff --git a/Documentation/devicetree/bindings/clock/imx6ul-clock.yaml b/Documentation/devicetree/bindings/clock/imx6ul-clock.yaml
index be54d4df5afa..d57e18a210cc 100644
--- a/Documentation/devicetree/bindings/clock/imx6ul-clock.yaml
+++ b/Documentation/devicetree/bindings/clock/imx6ul-clock.yaml
@@ -7,7 +7,8 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Freescale i.MX6 UltraLite Clock Controller
maintainers:
- - Anson Huang <Anson.Huang@nxp.com>
+ - Abel Vesa <abelvesa@kernel.org>
+ - Peng Fan <peng.fan@nxp.com>
properties:
compatible:
diff --git a/Documentation/devicetree/bindings/clock/imx7d-clock.yaml b/Documentation/devicetree/bindings/clock/imx7d-clock.yaml
index e7d8427e4957..880d602d09f4 100644
--- a/Documentation/devicetree/bindings/clock/imx7d-clock.yaml
+++ b/Documentation/devicetree/bindings/clock/imx7d-clock.yaml
@@ -8,7 +8,6 @@ title: Freescale i.MX7 Dual Clock Controller
maintainers:
- Frank Li <Frank.Li@nxp.com>
- - Anson Huang <Anson.Huang@nxp.com>
description: |
The clock consumer should specify the desired clock by having the clock
diff --git a/Documentation/devicetree/bindings/clock/imx8m-clock.yaml b/Documentation/devicetree/bindings/clock/imx8m-clock.yaml
index 0dbc1433fede..4fec55832702 100644
--- a/Documentation/devicetree/bindings/clock/imx8m-clock.yaml
+++ b/Documentation/devicetree/bindings/clock/imx8m-clock.yaml
@@ -7,7 +7,8 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: NXP i.MX8M Family Clock Control Module
maintainers:
- - Anson Huang <Anson.Huang@nxp.com>
+ - Abel Vesa <abelvesa@kernel.org>
+ - Peng Fan <peng.fan@nxp.com>
description: |
NXP i.MX8M Mini/Nano/Plus/Quad clock control module is an integrated clock
@@ -24,6 +25,9 @@ properties:
reg:
maxItems: 1
+ interrupts:
+ maxItems: 2
+
clocks:
minItems: 6
maxItems: 7
@@ -39,6 +43,13 @@ properties:
ID in its "clocks" phandle cell. See include/dt-bindings/clock/imx8m-clock.h
for the full list of i.MX8M clock IDs.
+ fsl,operating-mode:
+ $ref: /schemas/types.yaml#/definitions/string
+ enum: [nominal, overdrive]
+ description:
+ The operating mode of the SoC. This affects the maximum clock rates that
+ can safely be configured by the clock controller.
+
required:
- compatible
- reg
@@ -105,6 +116,7 @@ examples:
<&clk_ext3>, <&clk_ext4>;
clock-names = "osc_32k", "osc_24m", "clk_ext1", "clk_ext2",
"clk_ext3", "clk_ext4";
+ fsl,operating-mode = "nominal";
};
- |
diff --git a/Documentation/devicetree/bindings/clock/imx8mp-audiomix.yaml b/Documentation/devicetree/bindings/clock/imx8mp-audiomix.yaml
index ff9600474df2..0272c9527037 100644
--- a/Documentation/devicetree/bindings/clock/imx8mp-audiomix.yaml
+++ b/Documentation/devicetree/bindings/clock/imx8mp-audiomix.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/clock/imx8mp-audiomix.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: NXP i.MX8MP AudioMIX Block Control Binding
+title: NXP i.MX8MP AudioMIX Block Control
maintainers:
- Marek Vasut <marex@denx.de>
@@ -24,8 +24,8 @@ properties:
maxItems: 1
clocks:
- minItems: 7
- maxItems: 7
+ minItems: 8
+ maxItems: 8
clock-names:
items:
@@ -36,6 +36,7 @@ properties:
- const: sai5
- const: sai6
- const: sai7
+ - const: axi
'#clock-cells':
const: 1
@@ -44,6 +45,9 @@ properties:
ID in its "clocks" phandle cell. See include/dt-bindings/clock/imx8mp-clock.h
for the full list of i.MX8MP IMX8MP_CLK_AUDIOMIX_ clock IDs.
+ '#reset-cells':
+ const: 1
+
required:
- compatible
- reg
@@ -69,10 +73,11 @@ examples:
<&clk IMX8MP_CLK_SAI3>,
<&clk IMX8MP_CLK_SAI5>,
<&clk IMX8MP_CLK_SAI6>,
- <&clk IMX8MP_CLK_SAI7>;
+ <&clk IMX8MP_CLK_SAI7>,
+ <&clk IMX8MP_CLK_AUDIO_AXI_ROOT>;
clock-names = "ahb",
"sai1", "sai2", "sai3",
- "sai5", "sai6", "sai7";
+ "sai5", "sai6", "sai7", "axi";
power-domains = <&pgc_audio>;
};
diff --git a/Documentation/devicetree/bindings/clock/imx93-clock.yaml b/Documentation/devicetree/bindings/clock/imx93-clock.yaml
index ccb53c6b96c1..98c0800732ef 100644
--- a/Documentation/devicetree/bindings/clock/imx93-clock.yaml
+++ b/Documentation/devicetree/bindings/clock/imx93-clock.yaml
@@ -16,6 +16,7 @@ description: |
properties:
compatible:
enum:
+ - fsl,imx91-ccm
- fsl,imx93-ccm
reg:
diff --git a/Documentation/devicetree/bindings/clock/ingenic,cgu.yaml b/Documentation/devicetree/bindings/clock/ingenic,cgu.yaml
index 9e733b10c392..509df06b9c9d 100644
--- a/Documentation/devicetree/bindings/clock/ingenic,cgu.yaml
+++ b/Documentation/devicetree/bindings/clock/ingenic,cgu.yaml
@@ -98,9 +98,9 @@ required:
patternProperties:
"^usb-phy@[a-f0-9]+$":
- allOf: [ $ref: "../phy/ingenic,phy-usb.yaml#" ]
+ $ref: /schemas/phy/ingenic,phy-usb.yaml#
"^mac-phy-ctrl@[a-f0-9]+$":
- allOf: [ $ref: "../net/ingenic,mac.yaml#" ]
+ $ref: /schemas/net/ingenic,mac.yaml#
additionalProperties: false
diff --git a/Documentation/devicetree/bindings/clock/intel,agilex5-clkmgr.yaml b/Documentation/devicetree/bindings/clock/intel,agilex5-clkmgr.yaml
new file mode 100644
index 000000000000..d120b0da7f3d
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/intel,agilex5-clkmgr.yaml
@@ -0,0 +1,40 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/intel,agilex5-clkmgr.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Intel SoCFPGA Agilex5 clock manager
+
+maintainers:
+ - Dinh Nguyen <dinguyen@kernel.org>
+
+description:
+ The Intel Agilex5 Clock Manager is an integrated clock controller, which
+ generates and supplies clock to all the modules.
+
+properties:
+ compatible:
+ const: intel,agilex5-clkmgr
+
+ reg:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ clkmgr: clock-controller@10d10000 {
+ compatible = "intel,agilex5-clkmgr";
+ reg = <0x10d10000 0x1000>;
+ #clock-cells = <1>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/keystone-gate.txt b/Documentation/devicetree/bindings/clock/keystone-gate.txt
index c5aa187026e3..43f6fb6c9392 100644
--- a/Documentation/devicetree/bindings/clock/keystone-gate.txt
+++ b/Documentation/devicetree/bindings/clock/keystone-gate.txt
@@ -1,5 +1,3 @@
-Status: Unstable - ABI compatibility may be broken in the future
-
Binding for Keystone gate control driver which uses PSC controller IP.
This binding uses the common clock binding[1].
diff --git a/Documentation/devicetree/bindings/clock/keystone-pll.txt b/Documentation/devicetree/bindings/clock/keystone-pll.txt
index 47570d207215..69b0eb7c03c9 100644
--- a/Documentation/devicetree/bindings/clock/keystone-pll.txt
+++ b/Documentation/devicetree/bindings/clock/keystone-pll.txt
@@ -1,5 +1,3 @@
-Status: Unstable - ABI compatibility may be broken in the future
-
Binding for keystone PLLs. The main PLL IP typically has a multiplier,
a divider and a post divider. The additional PLL IPs like ARMPLL, DDRPLL
and PAPLL are controlled by the memory mapped register where as the Main
@@ -14,7 +12,7 @@ Required properties:
- #clock-cells : from common clock binding; shall be set to 0.
- compatible : shall be "ti,keystone,main-pll-clock" or "ti,keystone,pll-clock"
- clocks : parent clock phandle
-- reg - pll control0 and pll multipler registers
+- reg - pll control0 and pll multiplier registers
- reg-names : control, multiplier and post-divider. The multiplier and
post-divider registers are applicable only for main pll clock
- fixed-postdiv : fixed post divider value. If absent, use clkod register bits
diff --git a/Documentation/devicetree/bindings/clock/loongson,ls2k-clk.yaml b/Documentation/devicetree/bindings/clock/loongson,ls2k-clk.yaml
index 63a59015987e..c07ad1f85857 100644
--- a/Documentation/devicetree/bindings/clock/loongson,ls2k-clk.yaml
+++ b/Documentation/devicetree/bindings/clock/loongson,ls2k-clk.yaml
@@ -16,14 +16,16 @@ description: |
properties:
compatible:
enum:
- - loongson,ls2k-clk
+ - loongson,ls2k0300-clk
+ - loongson,ls2k0500-clk
+ - loongson,ls2k-clk # This is for Loongson-2K1000
+ - loongson,ls2k2000-clk
reg:
maxItems: 1
clocks:
- items:
- - description: 100m ref
+ maxItems: 1
clock-names:
items:
@@ -36,11 +38,23 @@ properties:
ID in its "clocks" phandle cell. See include/dt-bindings/clock/loongson,ls2k-clk.h
for the full list of Loongson-2 SoC clock IDs.
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: loongson,ls2k0300-clk
+ then:
+ properties:
+ clock-names: false
+ else:
+ required:
+ - clock-names
+
required:
- compatible
- reg
- clocks
- - clock-names
- '#clock-cells'
additionalProperties: false
diff --git a/Documentation/devicetree/bindings/clock/lpc1850-ccu.txt b/Documentation/devicetree/bindings/clock/lpc1850-ccu.txt
deleted file mode 100644
index fa97c12014ac..000000000000
--- a/Documentation/devicetree/bindings/clock/lpc1850-ccu.txt
+++ /dev/null
@@ -1,77 +0,0 @@
-* NXP LPC1850 Clock Control Unit (CCU)
-
-Each CGU base clock has several clock branches which can be turned on
-or off independently by the Clock Control Units CCU1 or CCU2. The
-branch clocks are distributed between CCU1 and CCU2.
-
- - Above text taken from NXP LPC1850 User Manual.
-
-This binding uses the common clock binding:
- Documentation/devicetree/bindings/clock/clock-bindings.txt
-
-Required properties:
-- compatible:
- Should be "nxp,lpc1850-ccu"
-- reg:
- Shall define the base and range of the address space
- containing clock control registers
-- #clock-cells:
- Shall have value <1>. The permitted clock-specifier values
- are the branch clock names defined in table below.
-- clocks:
- Shall contain a list of phandles for the base clocks routed
- from the CGU to the specific CCU. See mapping of base clocks
- and CCU in table below.
-- clock-names:
- Shall contain a list of names for the base clock routed
- from the CGU to the specific CCU. Valid CCU clock names:
- "base_usb0_clk", "base_periph_clk", "base_usb1_clk",
- "base_cpu_clk", "base_spifi_clk", "base_spi_clk",
- "base_apb1_clk", "base_apb3_clk", "base_adchs_clk",
- "base_sdio_clk", "base_ssp0_clk", "base_ssp1_clk",
- "base_uart0_clk", "base_uart1_clk", "base_uart2_clk",
- "base_uart3_clk", "base_audio_clk"
-
-Which branch clocks that are available on the CCU depends on the
-specific LPC part. Check the user manual for your specific part.
-
-A list of CCU clocks can be found in dt-bindings/clock/lpc18xx-ccu.h.
-
-Example board file:
-
-soc {
- ccu1: clock-controller@40051000 {
- compatible = "nxp,lpc1850-ccu";
- reg = <0x40051000 0x1000>;
- #clock-cells = <1>;
- clocks = <&cgu BASE_APB3_CLK>, <&cgu BASE_APB1_CLK>,
- <&cgu BASE_SPIFI_CLK>, <&cgu BASE_CPU_CLK>,
- <&cgu BASE_PERIPH_CLK>, <&cgu BASE_USB0_CLK>,
- <&cgu BASE_USB1_CLK>, <&cgu BASE_SPI_CLK>;
- clock-names = "base_apb3_clk", "base_apb1_clk",
- "base_spifi_clk", "base_cpu_clk",
- "base_periph_clk", "base_usb0_clk",
- "base_usb1_clk", "base_spi_clk";
- };
-
- ccu2: clock-controller@40052000 {
- compatible = "nxp,lpc1850-ccu";
- reg = <0x40052000 0x1000>;
- #clock-cells = <1>;
- clocks = <&cgu BASE_AUDIO_CLK>, <&cgu BASE_UART3_CLK>,
- <&cgu BASE_UART2_CLK>, <&cgu BASE_UART1_CLK>,
- <&cgu BASE_UART0_CLK>, <&cgu BASE_SSP1_CLK>,
- <&cgu BASE_SSP0_CLK>, <&cgu BASE_SDIO_CLK>;
- clock-names = "base_audio_clk", "base_uart3_clk",
- "base_uart2_clk", "base_uart1_clk",
- "base_uart0_clk", "base_ssp1_clk",
- "base_ssp0_clk", "base_sdio_clk";
- };
-
- /* A user of CCU brach clocks */
- uart1: serial@40082000 {
- ...
- clocks = <&ccu2 CLK_APB0_UART1>, <&ccu1 CLK_CPU_UART1>;
- ...
- };
-};
diff --git a/Documentation/devicetree/bindings/clock/lpc1850-cgu.txt b/Documentation/devicetree/bindings/clock/lpc1850-cgu.txt
deleted file mode 100644
index 2cc32a9a945a..000000000000
--- a/Documentation/devicetree/bindings/clock/lpc1850-cgu.txt
+++ /dev/null
@@ -1,131 +0,0 @@
-* NXP LPC1850 Clock Generation Unit (CGU)
-
-The CGU generates multiple independent clocks for the core and the
-peripheral blocks of the LPC18xx. Each independent clock is called
-a base clock and itself is one of the inputs to the two Clock
-Control Units (CCUs) which control the branch clocks to the
-individual peripherals.
-
-The CGU selects the inputs to the clock generators from multiple
-clock sources, controls the clock generation, and routes the outputs
-of the clock generators through the clock source bus to the output
-stages. Each output stage provides an independent clock source and
-corresponds to one of the base clocks for the LPC18xx.
-
- - Above text taken from NXP LPC1850 User Manual.
-
-
-This binding uses the common clock binding:
- Documentation/devicetree/bindings/clock/clock-bindings.txt
-
-Required properties:
-- compatible:
- Should be "nxp,lpc1850-cgu"
-- reg:
- Shall define the base and range of the address space
- containing clock control registers
-- #clock-cells:
- Shall have value <1>. The permitted clock-specifier values
- are the base clock numbers defined below.
-- clocks:
- Shall contain a list of phandles for the external input
- sources to the CGU. The list shall be in the following
- order: xtal, 32khz, enet_rx_clk, enet_tx_clk, gp_clkin.
-- clock-indices:
- Shall be an ordered list of numbers defining the base clock
- number provided by the CGU.
-- clock-output-names:
- Shall be an ordered list of strings defining the names of
- the clocks provided by the CGU.
-
-Which base clocks that are available on the CGU depends on the
-specific LPC part. Base clocks are numbered from 0 to 27.
-
-Number: Name: Description:
- 0 BASE_SAFE_CLK Base safe clock (always on) for WWDT
- 1 BASE_USB0_CLK Base clock for USB0
- 2 BASE_PERIPH_CLK Base clock for Cortex-M0SUB subsystem,
- SPI, and SGPIO
- 3 BASE_USB1_CLK Base clock for USB1
- 4 BASE_CPU_CLK System base clock for ARM Cortex-M core
- and APB peripheral blocks #0 and #2
- 5 BASE_SPIFI_CLK Base clock for SPIFI
- 6 BASE_SPI_CLK Base clock for SPI
- 7 BASE_PHY_RX_CLK Base clock for Ethernet PHY Receive clock
- 8 BASE_PHY_TX_CLK Base clock for Ethernet PHY Transmit clock
- 9 BASE_APB1_CLK Base clock for APB peripheral block # 1
-10 BASE_APB3_CLK Base clock for APB peripheral block # 3
-11 BASE_LCD_CLK Base clock for LCD
-12 BASE_ADCHS_CLK Base clock for ADCHS
-13 BASE_SDIO_CLK Base clock for SD/MMC
-14 BASE_SSP0_CLK Base clock for SSP0
-15 BASE_SSP1_CLK Base clock for SSP1
-16 BASE_UART0_CLK Base clock for UART0
-17 BASE_UART1_CLK Base clock for UART1
-18 BASE_UART2_CLK Base clock for UART2
-19 BASE_UART3_CLK Base clock for UART3
-20 BASE_OUT_CLK Base clock for CLKOUT pin
-24-21 - Reserved
-25 BASE_AUDIO_CLK Base clock for audio system (I2S)
-26 BASE_CGU_OUT0_CLK Base clock for CGU_OUT0 clock output
-27 BASE_CGU_OUT1_CLK Base clock for CGU_OUT1 clock output
-
-BASE_PERIPH_CLK and BASE_SPI_CLK is only available on LPC43xx.
-BASE_ADCHS_CLK is only available on LPC4370.
-
-
-Example board file:
-
-/ {
- clocks {
- xtal: xtal {
- compatible = "fixed-clock";
- #clock-cells = <0>;
- clock-frequency = <12000000>;
- };
-
- xtal32: xtal32 {
- compatible = "fixed-clock";
- #clock-cells = <0>;
- clock-frequency = <32768>;
- };
-
- enet_rx_clk: enet_rx_clk {
- compatible = "fixed-clock";
- #clock-cells = <0>;
- clock-frequency = <0>;
- clock-output-names = "enet_rx_clk";
- };
-
- enet_tx_clk: enet_tx_clk {
- compatible = "fixed-clock";
- #clock-cells = <0>;
- clock-frequency = <0>;
- clock-output-names = "enet_tx_clk";
- };
-
- gp_clkin: gp_clkin {
- compatible = "fixed-clock";
- #clock-cells = <0>;
- clock-frequency = <0>;
- clock-output-names = "gp_clkin";
- };
- };
-
- soc {
- cgu: clock-controller@40050000 {
- compatible = "nxp,lpc1850-cgu";
- reg = <0x40050000 0x1000>;
- #clock-cells = <1>;
- clocks = <&xtal>, <&creg_clk 1>, <&enet_rx_clk>, <&enet_tx_clk>, <&gp_clkin>;
- };
-
- /* A CGU and CCU clock consumer */
- lcdc: lcdc@40008000 {
- ...
- clocks = <&cgu BASE_LCD_CLK>, <&ccu1 CLK_CPU_LCD>;
- clock-names = "clcdclk", "apb_pclk";
- ...
- };
- };
-};
diff --git a/Documentation/devicetree/bindings/clock/lpc1850-creg-clk.txt b/Documentation/devicetree/bindings/clock/lpc1850-creg-clk.txt
deleted file mode 100644
index 6f1c7b4e4d2c..000000000000
--- a/Documentation/devicetree/bindings/clock/lpc1850-creg-clk.txt
+++ /dev/null
@@ -1,52 +0,0 @@
-* NXP LPC1850 CREG clocks
-
-The NXP LPC18xx/43xx CREG (Configuration Registers) block contains
-control registers for two low speed clocks. One of the clocks is a
-32 kHz oscillator driver with power up/down and clock gating. Next
-is a fixed divider that creates a 1 kHz clock from the 32 kHz osc.
-
-These clocks are used by the RTC and the Event Router peripherials.
-The 32 kHz can also be routed to other peripherials to enable low
-power modes.
-
-This binding uses the common clock binding:
- Documentation/devicetree/bindings/clock/clock-bindings.txt
-
-Required properties:
-- compatible:
- Should be "nxp,lpc1850-creg-clk"
-- #clock-cells:
- Shall have value <1>.
-- clocks:
- Shall contain a phandle to the fixed 32 kHz crystal.
-
-The creg-clk node must be a child of the creg syscon node.
-
-The following clocks are available from the clock node.
-
-Clock ID Name
- 0 1 kHz clock
- 1 32 kHz Oscillator
-
-Example:
-soc {
- creg: syscon@40043000 {
- compatible = "nxp,lpc1850-creg", "syscon", "simple-mfd";
- reg = <0x40043000 0x1000>;
-
- creg_clk: clock-controller {
- compatible = "nxp,lpc1850-creg-clk";
- clocks = <&xtal32>;
- #clock-cells = <1>;
- };
-
- ...
- };
-
- rtc: rtc@40046000 {
- ...
- clocks = <&creg_clk 0>, <&ccu1 CLK_CPU_BUS>;
- clock-names = "rtc", "reg";
- ...
- };
-};
diff --git a/Documentation/devicetree/bindings/clock/lsi,axm5516-clks.txt b/Documentation/devicetree/bindings/clock/lsi,axm5516-clks.txt
deleted file mode 100644
index 3ce97cfe999b..000000000000
--- a/Documentation/devicetree/bindings/clock/lsi,axm5516-clks.txt
+++ /dev/null
@@ -1,29 +0,0 @@
-AXM5516 clock driver bindings
------------------------------
-
-Required properties :
-- compatible : shall contain "lsi,axm5516-clks"
-- reg : shall contain base register location and length
-- #clock-cells : shall contain 1
-
-The consumer specifies the desired clock by having the clock ID in its "clocks"
-phandle cell. See <dt-bindings/clock/lsi,axxia-clock.h> for the list of
-supported clock IDs.
-
-Example:
-
- clks: clock-controller@2010020000 {
- compatible = "lsi,axm5516-clks";
- #clock-cells = <1>;
- reg = <0x20 0x10020000 0 0x20000>;
- };
-
- serial0: uart@2010080000 {
- compatible = "arm,pl011", "arm,primecell";
- reg = <0x20 0x10080000 0 0x1000>;
- interrupts = <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&clks AXXIA_CLK_PER>;
- clock-names = "apb_pclk";
- };
- };
-
diff --git a/Documentation/devicetree/bindings/clock/lsi,axm5516-clks.yaml b/Documentation/devicetree/bindings/clock/lsi,axm5516-clks.yaml
new file mode 100644
index 000000000000..7a792dbeffb3
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/lsi,axm5516-clks.yaml
@@ -0,0 +1,43 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright 2025 LSI
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/lsi,axm5516-clks.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: LSI AXM5516 Clock Controller
+
+maintainers:
+ - Anders Berg <anders.berg@lsi.com>
+
+description:
+ See <dt-bindings/clock/lsi,axxia-clock.h> for the list of supported clock IDs.
+
+properties:
+ compatible:
+ const: lsi,axm5516-clks
+
+ reg:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ bus {
+ #address-cells = <2>;
+ #size-cells = <1>;
+ clock-controller@2010020000 {
+ compatible = "lsi,axm5516-clks";
+ #clock-cells = <1>;
+ reg = <0x20 0x10020000 0x20000>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/clock/lsi,nspire-cx-clock.yaml b/Documentation/devicetree/bindings/clock/lsi,nspire-cx-clock.yaml
new file mode 100644
index 000000000000..52c217d210d0
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/lsi,nspire-cx-clock.yaml
@@ -0,0 +1,33 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/lsi,nspire-cx-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TI-NSPIRE Clocks
+
+maintainers:
+ - Daniel Tang <dt.tangr@gmail.com>
+
+properties:
+ compatible:
+ enum:
+ - lsi,nspire-cx-ahb-divider
+ - lsi,nspire-classic-ahb-divider
+ - lsi,nspire-cx-clock
+ - lsi,nspire-classic-clock
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 0
+
+additionalProperties: false
+
+required:
+ - compatible
+ - reg
diff --git a/Documentation/devicetree/bindings/clock/marvell,ap80x-clock.yaml b/Documentation/devicetree/bindings/clock/marvell,ap80x-clock.yaml
new file mode 100644
index 000000000000..43b0631ba167
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/marvell,ap80x-clock.yaml
@@ -0,0 +1,54 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/marvell,ap80x-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Marvell Armada AP80x System Controller Clocks
+
+maintainers:
+ - Gregory Clement <gregory.clement@bootlin.com>
+ - Miquel Raynal <miquel.raynal@bootlin.com>
+
+description: >
+ The AP806/AP807 is one of the two core HW blocks of the Marvell Armada
+ 7K/8K/931x SoCs. It contains system controllers, which provide several
+ registers giving access to numerous features: clocks, pin-muxing and many
+ other SoC configuration items.
+
+properties:
+ compatible:
+ enum:
+ - marvell,ap806-clock
+ - marvell,ap806-cpu-clock
+ - marvell,ap807-clock
+ - marvell,ap807-cpu-clock
+
+ reg:
+ maxItems: 1
+
+ "#clock-cells":
+ const: 1
+
+ clocks:
+ items:
+ - description: cluster 0 parent clock phandle
+ - description: cluster 1 parent clock phandle
+
+required:
+ - compatible
+ - "#clock-cells"
+
+additionalProperties: false
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - marvell,ap806-cpu-clock
+ - marvell,ap807-cpu-clock
+ then:
+ required:
+ - clocks
diff --git a/Documentation/devicetree/bindings/clock/marvell,armada-370-corediv-clock.yaml b/Documentation/devicetree/bindings/clock/marvell,armada-370-corediv-clock.yaml
new file mode 100644
index 000000000000..9d766558cdb9
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/marvell,armada-370-corediv-clock.yaml
@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/marvell,armada-370-corediv-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Marvell MVEBU Core Divider Clock
+
+maintainers:
+ - Andrew Lunn <andrew@lunn.ch>
+ - Gregory Clement <gregory.clement@bootlin.com>
+
+properties:
+ compatible:
+ oneOf:
+ - enum:
+ - marvell,armada-370-corediv-clock
+ - marvell,armada-375-corediv-clock
+ - marvell,armada-380-corediv-clock
+ - marvell,mv98dx3236-corediv-clock
+ - items:
+ - const: marvell,armada-390-corediv-clock
+ - const: marvell,armada-380-corediv-clock
+
+ reg:
+ maxItems: 1
+
+ "#clock-cells":
+ const: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-output-names:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - "#clock-cells"
+ - clocks
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-controller@18740 {
+ compatible = "marvell,armada-370-corediv-clock";
+ reg = <0x18740 0xc>;
+ #clock-cells = <1>;
+ clocks = <&pll>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/marvell,armada-3700-periph-clock.yaml b/Documentation/devicetree/bindings/clock/marvell,armada-3700-periph-clock.yaml
new file mode 100644
index 000000000000..87e8e4ca111a
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/marvell,armada-3700-periph-clock.yaml
@@ -0,0 +1,96 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/marvell,armada-3700-periph-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Marvell Armada 37xx SoCs Peripheral Clocks
+
+maintainers:
+ - Andrew Lunn <andrew@lunn.ch>
+ - Gregory Clement <gregory.clement@bootlin.com>
+
+description: >
+ Marvell Armada 37xx SoCs provide peripheral clocks which are used as clock
+ source for the peripheral of the SoC.
+
+ There are two different blocks associated to north bridge and south bridge.
+
+ The following is a list of provided IDs for Armada 3700 North bridge clocks:
+
+ ID Clock name Description
+ -----------------------------------
+ 0 mmc MMC controller
+ 1 sata_host Sata Host
+ 2 sec_at Security AT
+ 3 sac_dap Security DAP
+ 4 tsecm Security Engine
+ 5 setm_tmx Serial Embedded Trace Module
+ 6 avs Adaptive Voltage Scaling
+ 7 sqf SPI
+ 8 pwm PWM
+ 9 i2c_2 I2C 2
+ 10 i2c_1 I2C 1
+ 11 ddr_phy DDR PHY
+ 12 ddr_fclk DDR F clock
+ 13 trace Trace
+ 14 counter Counter
+ 15 eip97 EIP 97
+ 16 cpu CPU
+
+ The following is a list of provided IDs for Armada 3700 South bridge clocks:
+
+ ID Clock name Description
+ -----------------------------------
+ 0 gbe-50 50 MHz parent clock for Gigabit Ethernet
+ 1 gbe-core parent clock for Gigabit Ethernet core
+ 2 gbe-125 125 MHz parent clock for Gigabit Ethernet
+ 3 gbe1-50 50 MHz clock for Gigabit Ethernet port 1
+ 4 gbe0-50 50 MHz clock for Gigabit Ethernet port 0
+ 5 gbe1-125 125 MHz clock for Gigabit Ethernet port 1
+ 6 gbe0-125 125 MHz clock for Gigabit Ethernet port 0
+ 7 gbe1-core Gigabit Ethernet core port 1
+ 8 gbe0-core Gigabit Ethernet core port 0
+ 9 gbe-bm Gigabit Ethernet Buffer Manager
+ 10 sdio SDIO
+ 11 usb32-sub2-sys USB 2 clock
+ 12 usb32-ss-sys USB 3 clock
+ 13 pcie PCIe controller
+
+properties:
+ compatible:
+ oneOf:
+ - const: marvell,armada-3700-periph-clock-sb
+ - items:
+ - const: marvell,armada-3700-periph-clock-nb
+ - const: syscon
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: TBG-A P clock and specifier
+ - description: TBG-B P clock and specifier
+ - description: TBG-A S clock and specifier
+ - description: TBG-B S clock and specifier
+ - description: Xtal clock and specifier
+
+ '#clock-cells':
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-controller@13000{
+ compatible = "marvell,armada-3700-periph-clock-sb";
+ reg = <0x13000 0x1000>;
+ clocks = <&tbg 0>, <&tbg 1>, <&tbg 2>, <&tbg 3>, <&xtalclk>;
+ #clock-cells = <1>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/marvell,armada-3700-tbg-clock.yaml b/Documentation/devicetree/bindings/clock/marvell,armada-3700-tbg-clock.yaml
new file mode 100644
index 000000000000..7fd1d758f794
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/marvell,armada-3700-tbg-clock.yaml
@@ -0,0 +1,54 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/marvell,armada-3700-tbg-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Marvell Armada 3700 Time Base Generator Clock
+
+maintainers:
+ - Andrew Lunn <andrew@lunn.ch>
+ - Gregory Clement <gregory.clement@bootlin.com>
+
+description: >
+ Marvell Armada 37xx SoCs provide Time Base Generator clocks which are used as
+ parent clocks for the peripheral clocks.
+
+ The TBG clock consumer should specify the desired clock by having the clock ID
+ in its "clocks" phandle cell.
+
+ The following is a list of provided IDs and clock names on Armada 3700:
+
+ 0 = TBG A P
+ 1 = TBG B P
+ 2 = TBG A S
+ 3 = TBG B S
+
+properties:
+ compatible:
+ const: marvell,armada-3700-tbg-clock
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-controller@13200 {
+ compatible = "marvell,armada-3700-tbg-clock";
+ reg = <0x13200 0x1000>;
+ clocks = <&xtalclk>;
+ #clock-cells = <1>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/marvell,armada-xp-cpu-clock.yaml b/Documentation/devicetree/bindings/clock/marvell,armada-xp-cpu-clock.yaml
new file mode 100644
index 000000000000..f2ac6741da9a
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/marvell,armada-xp-cpu-clock.yaml
@@ -0,0 +1,44 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+---
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+$id: http://devicetree.org/schemas/clock/marvell,armada-xp-cpu-clock.yaml#
+
+title: Marvell EBU CPU Clock
+
+maintainers:
+ - Andrew Lunn <andrew@lunn.ch>
+ - Gregory Clement <gregory.clement@bootlin.com>
+
+properties:
+ compatible:
+ enum:
+ - marvell,armada-xp-cpu-clock
+ - marvell,mv98dx3236-cpu-clock
+
+ reg:
+ items:
+ - description: Clock complex registers
+ - description: PMU DFS registers
+
+ '#clock-cells':
+ const: 1
+
+ clocks:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - '#clock-cells'
+ - clocks
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-controller@d0018700 {
+ #clock-cells = <1>;
+ compatible = "marvell,armada-xp-cpu-clock";
+ reg = <0xd0018700 0xa0>, <0x1c054 0x10>;
+ clocks = <&coreclk 1>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/marvell,berlin.txt b/Documentation/devicetree/bindings/clock/marvell,berlin.txt
deleted file mode 100644
index c611c495f3ff..000000000000
--- a/Documentation/devicetree/bindings/clock/marvell,berlin.txt
+++ /dev/null
@@ -1,31 +0,0 @@
-Device Tree Clock bindings for Marvell Berlin
-
-This binding uses the common clock binding[1].
-
-[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
-
-Clock related registers are spread among the chip control registers. Berlin
-clock node should be a sub-node of the chip controller node. Marvell Berlin2
-(BG2, BG2CD, BG2Q) SoCs share the same IP for PLLs and clocks, with some
-minor differences in features and register layout.
-
-Required properties:
-- compatible: must be "marvell,berlin2-clk" or "marvell,berlin2q-clk"
-- #clock-cells: must be 1
-- clocks: must be the input parent clock phandle
-- clock-names: name of the input parent clock
- Allowed clock-names for the reference clocks are
- "refclk" for the SoCs oscillator input on all SoCs,
- and SoC-specific input clocks for
- BG2/BG2CD: "video_ext0" for the external video clock input
-
-
-Example:
-
-chip_clk: clock {
- compatible = "marvell,berlin2q-clk";
-
- #clock-cells = <1>;
- clocks = <&refclk>;
- clock-names = "refclk";
-};
diff --git a/Documentation/devicetree/bindings/clock/marvell,berlin2-clk.yaml b/Documentation/devicetree/bindings/clock/marvell,berlin2-clk.yaml
new file mode 100644
index 000000000000..8d48a2c7e381
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/marvell,berlin2-clk.yaml
@@ -0,0 +1,51 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/marvell,berlin2-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Marvell Berlin Clock Controller
+
+maintainers:
+ - Jisheng Zhang <jszhang@kernel.org>
+
+description:
+ Clock related registers are spread among the chip control registers. Berlin
+ clock node should be a sub-node of the chip controller node. Marvell Berlin2
+ (BG2, BG2CD, BG2Q) SoCs share the same IP for PLLs and clocks, with some minor
+ differences in features and register layout.
+
+properties:
+ compatible:
+ enum:
+ - marvell,berlin2-clk
+ - marvell,berlin2q-clk
+
+ '#clock-cells':
+ const: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ items:
+ - enum:
+ - refclk
+ - video_ext0
+
+required:
+ - compatible
+ - '#clock-cells'
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-controller {
+ compatible = "marvell,berlin2q-clk";
+ #clock-cells = <1>;
+ clocks = <&refclk>;
+ clock-names = "refclk";
+ };
diff --git a/Documentation/devicetree/bindings/clock/marvell,cp110-clock.yaml b/Documentation/devicetree/bindings/clock/marvell,cp110-clock.yaml
new file mode 100644
index 000000000000..ad0bc79b24c6
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/marvell,cp110-clock.yaml
@@ -0,0 +1,70 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/marvell,cp110-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Marvell Armada CP110 System Controller Clocks
+
+maintainers:
+ - Gregory Clement <gregory.clement@bootlin.com>
+ - Miquel Raynal <miquel.raynal@bootlin.com>
+
+description: >
+ The CP110 is one of the two core HW blocks of the Marvell Armada 7K/8K/931x
+ SoCs. It contains system controllers, which provide several registers giving
+ access to numerous features: clocks, pin-muxing and many other SoC
+ configuration items.
+
+properties:
+ compatible:
+ const: marvell,cp110-clock
+
+ "#clock-cells":
+ const: 2
+ description: >
+ The first cell must be 0 or 1. 0 for the core clocks and 1 for the
+ gateable clocks. The second cell identifies the particular core clock or
+ gateable clocks.
+
+ The following clocks are available:
+
+ - Core clocks
+ - 0 0 APLL
+ - 0 1 PPv2 core
+ - 0 2 EIP
+ - 0 3 Core
+ - 0 4 NAND core
+ - 0 5 SDIO core
+
+ - Gateable clocks
+ - 1 0 Audio
+ - 1 1 Comm Unit
+ - 1 2 NAND
+ - 1 3 PPv2
+ - 1 4 SDIO
+ - 1 5 MG Domain
+ - 1 6 MG Core
+ - 1 7 XOR1
+ - 1 8 XOR0
+ - 1 9 GOP DP
+ - 1 11 PCIe x1 0
+ - 1 12 PCIe x1 1
+ - 1 13 PCIe x4
+ - 1 14 PCIe / XOR
+ - 1 15 SATA
+ - 1 16 SATA USB
+ - 1 17 Main
+ - 1 18 SD/MMC/GOP
+ - 1 21 Slow IO (SPI, NOR, BootROM, I2C, UART)
+ - 1 22 USB3H0
+ - 1 23 USB3H1
+ - 1 24 USB3 Device
+ - 1 25 EIP150
+ - 1 26 EIP197
+
+required:
+ - compatible
+ - "#clock-cells"
+
+additionalProperties: false
diff --git a/Documentation/devicetree/bindings/clock/marvell,dove-divider-clock.yaml b/Documentation/devicetree/bindings/clock/marvell,dove-divider-clock.yaml
new file mode 100644
index 000000000000..7a8e0e281b63
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/marvell,dove-divider-clock.yaml
@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/marvell,dove-divider-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Marvell Dove PLL Divider Clock
+
+maintainers:
+ - Andrew Lunn <andrew@lunn.ch>
+ - Gregory Clement <gregory.clement@bootlin.com>
+
+description: >
+ Marvell Dove has a 2GHz PLL, which feeds into a set of dividers to provide
+ high speed clocks for a number of peripherals. These dividers are part of the
+ PMU, and thus this node should be a child of the PMU node.
+
+ The following clocks are provided:
+
+ ID Clock
+ -------------
+ 0 AXI bus clock
+ 1 GPU clock
+ 2 VMeta clock
+ 3 LCD clock
+
+properties:
+ compatible:
+ const: marvell,dove-divider-clock
+
+ reg:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-controller@64 {
+ compatible = "marvell,dove-divider-clock";
+ reg = <0x0064 0x8>;
+ #clock-cells = <1>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/marvell,mvebu-core-clock.yaml b/Documentation/devicetree/bindings/clock/marvell,mvebu-core-clock.yaml
new file mode 100644
index 000000000000..215bcd9080c3
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/marvell,mvebu-core-clock.yaml
@@ -0,0 +1,94 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/marvell,mvebu-core-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Marvell MVEBU SoC core clock
+
+maintainers:
+ - Andrew Lunn <andrew@lunn.ch>
+ - Gregory Clement <gregory.clement@bootlin.com>
+
+description: >
+ Marvell MVEBU SoCs usually allow to determine core clock frequencies by
+ reading the Sample-At-Reset (SAR) register. The core clock consumer should
+ specify the desired clock by having the clock ID in its "clocks" phandle cell.
+
+ The following is a list of provided IDs and clock names on Armada 370/XP:
+ 0 = tclk (Internal Bus clock)
+ 1 = cpuclk (CPU clock)
+ 2 = nbclk (L2 Cache clock)
+ 3 = hclk (DRAM control clock)
+ 4 = dramclk (DDR clock)
+
+ The following is a list of provided IDs and clock names on Armada 375:
+ 0 = tclk (Internal Bus clock)
+ 1 = cpuclk (CPU clock)
+ 2 = l2clk (L2 Cache clock)
+ 3 = ddrclk (DDR clock)
+
+ The following is a list of provided IDs and clock names on Armada 380/385:
+ 0 = tclk (Internal Bus clock)
+ 1 = cpuclk (CPU clock)
+ 2 = l2clk (L2 Cache clock)
+ 3 = ddrclk (DDR clock)
+
+ The following is a list of provided IDs and clock names on Armada 39x:
+ 0 = tclk (Internal Bus clock)
+ 1 = cpuclk (CPU clock)
+ 2 = nbclk (Coherent Fabric clock)
+ 3 = hclk (SDRAM Controller Internal Clock)
+ 4 = dclk (SDRAM Interface Clock)
+ 5 = refclk (Reference Clock)
+
+ The following is a list of provided IDs and clock names on 98dx3236:
+ 0 = tclk (Internal Bus clock)
+ 1 = cpuclk (CPU clock)
+ 2 = ddrclk (DDR clock)
+ 3 = mpll (MPLL Clock)
+
+ The following is a list of provided IDs and clock names on Kirkwood and Dove:
+ 0 = tclk (Internal Bus clock)
+ 1 = cpuclk (CPU0 clock)
+ 2 = l2clk (L2 Cache clock derived from CPU0 clock)
+ 3 = ddrclk (DDR controller clock derived from CPU0 clock)
+
+ The following is a list of provided IDs and clock names on Orion5x:
+ 0 = tclk (Internal Bus clock)
+ 1 = cpuclk (CPU0 clock)
+ 2 = ddrclk (DDR controller clock derived from CPU0 clock)
+
+properties:
+ compatible:
+ enum:
+ - marvell,armada-370-core-clock
+ - marvell,armada-375-core-clock
+ - marvell,armada-380-core-clock
+ - marvell,armada-390-core-clock
+ - marvell,armada-xp-core-clock
+ - marvell,dove-core-clock
+ - marvell,kirkwood-core-clock
+ - marvell,mv88f5181-core-clock
+ - marvell,mv88f5182-core-clock
+ - marvell,mv88f5281-core-clock
+ - marvell,mv88f6180-core-clock
+ - marvell,mv88f6183-core-clock
+ - marvell,mv98dx1135-core-clock
+ - marvell,mv98dx3236-core-clock
+
+ reg:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 1
+
+ clock-output-names:
+ description: Overwrite default clock output names.
+
+required:
+ - compatible
+ - reg
+ - '#clock-cells'
+
+additionalProperties: false
diff --git a/Documentation/devicetree/bindings/clock/marvell,pxa1908.yaml b/Documentation/devicetree/bindings/clock/marvell,pxa1908.yaml
new file mode 100644
index 000000000000..6f3a8578fe2a
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/marvell,pxa1908.yaml
@@ -0,0 +1,66 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/marvell,pxa1908.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Marvell PXA1908 Clock Controllers
+
+maintainers:
+ - Duje Mihanović <duje.mihanovic@skole.hr>
+
+description: |
+ The PXA1908 clock subsystem generates and supplies clock to various
+ controllers within the PXA1908 SoC. The PXA1908 contains numerous clock
+ controller blocks, with the ones currently supported being APBC, APBCP, MPMU
+ and APMU roughly corresponding to internal buses.
+
+ All these clock identifiers could be found in <include/dt-bindings/marvell,pxa1908.h>.
+
+properties:
+ compatible:
+ oneOf:
+ - enum:
+ - marvell,pxa1908-apbc
+ - marvell,pxa1908-apbcp
+ - marvell,pxa1908-mpmu
+ - items:
+ - const: marvell,pxa1908-apmu
+ - const: syscon
+
+ reg:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 1
+
+ '#power-domain-cells':
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - '#clock-cells'
+
+additionalProperties: false
+
+if:
+ not:
+ properties:
+ compatible:
+ contains:
+ const: marvell,pxa1908-apmu
+
+then:
+ properties:
+ '#power-domain-cells': false
+
+examples:
+ # APMU block:
+ - |
+ clock-controller@d4282800 {
+ compatible = "marvell,pxa1908-apmu", "syscon";
+ reg = <0xd4282800 0x400>;
+ #clock-cells = <1>;
+ #power-domain-cells = <1>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/marvell-armada-370-gating-clock.yaml b/Documentation/devicetree/bindings/clock/marvell-armada-370-gating-clock.yaml
new file mode 100644
index 000000000000..0475360d2b6a
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/marvell-armada-370-gating-clock.yaml
@@ -0,0 +1,227 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+---
+$id: http://devicetree.org/schemas/clock/marvell-armada-370-gating-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Marvell EBU SoC gating-clock
+
+maintainers:
+ - Andrew Lunn <andrew@lunn.ch>
+ - Gregory Clement <gregory.clement@bootlin.com>
+
+description: >
+ Marvell Armada 370/375/380/385/39x/XP, Dove and Kirkwood allow some peripheral
+ clocks to be gated to save some power. The clock ID is directly mapped to the
+ corresponding clock gating control bit in HW to ease manual clock lookup in
+ datasheet.
+
+ The following is a list of provided IDs for Armada 370:
+
+ ID Clock Peripheral
+ -----------------------------------
+ 0 Audio AC97 Cntrl
+ 1 pex0_en PCIe 0 Clock out
+ 2 pex1_en PCIe 1 Clock out
+ 3 ge1 Gigabit Ethernet 1
+ 4 ge0 Gigabit Ethernet 0
+ 5 pex0 PCIe Cntrl 0
+ 9 pex1 PCIe Cntrl 1
+ 15 sata0 SATA Host 0
+ 17 sdio SDHCI Host
+ 23 crypto CESA (crypto engine)
+ 25 tdm Time Division Mplx
+ 28 ddr DDR Cntrl
+ 30 sata1 SATA Host 0
+
+ The following is a list of provided IDs for Armada 375:
+
+ ID Clock Peripheral
+ -----------------------------------
+ 2 mu Management Unit
+ 3 pp Packet Processor
+ 4 ptp PTP
+ 5 pex0 PCIe 0 Clock out
+ 6 pex1 PCIe 1 Clock out
+ 8 audio Audio Cntrl
+ 11 nd_clk Nand Flash Cntrl
+ 14 sata0_link SATA 0 Link
+ 15 sata0_core SATA 0 Core
+ 16 usb3 USB3 Host
+ 17 sdio SDHCI Host
+ 18 usb USB Host
+ 19 gop Gigabit Ethernet MAC
+ 20 sata1_link SATA 1 Link
+ 21 sata1_core SATA 1 Core
+ 22 xor0 XOR DMA 0
+ 23 xor1 XOR DMA 0
+ 24 copro Coprocessor
+ 25 tdm Time Division Mplx
+ 28 crypto0_enc Cryptographic Unit Port 0 Encryption
+ 29 crypto0_core Cryptographic Unit Port 0 Core
+ 30 crypto1_enc Cryptographic Unit Port 1 Encryption
+ 31 crypto1_core Cryptographic Unit Port 1 Core
+
+ The following is a list of provided IDs for Armada 380/385:
+
+ ID Clock Peripheral
+ -----------------------------------
+ 0 audio Audio
+ 2 ge2 Gigabit Ethernet 2
+ 3 ge1 Gigabit Ethernet 1
+ 4 ge0 Gigabit Ethernet 0
+ 5 pex1 PCIe 1
+ 6 pex2 PCIe 2
+ 7 pex3 PCIe 3
+ 8 pex0 PCIe 0
+ 9 usb3h0 USB3 Host 0
+ 10 usb3h1 USB3 Host 1
+ 11 usb3d USB3 Device
+ 13 bm Buffer Management
+ 14 crypto0z Cryptographic 0 Z
+ 15 sata0 SATA 0
+ 16 crypto1z Cryptographic 1 Z
+ 17 sdio SDIO
+ 18 usb2 USB 2
+ 21 crypto1 Cryptographic 1
+ 22 xor0 XOR 0
+ 23 crypto0 Cryptographic 0
+ 25 tdm Time Division Multiplexing
+ 28 xor1 XOR 1
+ 30 sata1 SATA 1
+
+ The following is a list of provided IDs for Armada 39x:
+
+ ID Clock Peripheral
+ -----------------------------------
+ 5 pex1 PCIe 1
+ 6 pex2 PCIe 2
+ 7 pex3 PCIe 3
+ 8 pex0 PCIe 0
+ 9 usb3h0 USB3 Host 0
+ 10 usb3h1 USB3 Host 1
+ 15 sata0 SATA 0
+ 17 sdio SDIO
+ 22 xor0 XOR 0
+ 28 xor1 XOR 1
+
+ The following is a list of provided IDs for Armada XP:
+
+ ID Clock Peripheral
+ -----------------------------------
+ 0 audio Audio Cntrl
+ 1 ge3 Gigabit Ethernet 3
+ 2 ge2 Gigabit Ethernet 2
+ 3 ge1 Gigabit Ethernet 1
+ 4 ge0 Gigabit Ethernet 0
+ 5 pex0 PCIe Cntrl 0
+ 6 pex1 PCIe Cntrl 1
+ 7 pex2 PCIe Cntrl 2
+ 8 pex3 PCIe Cntrl 3
+ 13 bp
+ 14 sata0lnk
+ 15 sata0 SATA Host 0
+ 16 lcd LCD Cntrl
+ 17 sdio SDHCI Host
+ 18 usb0 USB Host 0
+ 19 usb1 USB Host 1
+ 20 usb2 USB Host 2
+ 22 xor0 XOR DMA 0
+ 23 crypto CESA engine
+ 25 tdm Time Division Mplx
+ 28 xor1 XOR DMA 1
+ 29 sata1lnk
+ 30 sata1 SATA Host 1
+
+ The following is a list of provided IDs for 98dx3236:
+
+ ID Clock Peripheral
+ -----------------------------------
+ 3 ge1 Gigabit Ethernet 1
+ 4 ge0 Gigabit Ethernet 0
+ 5 pex0 PCIe Cntrl 0
+ 17 sdio SDHCI Host
+ 18 usb0 USB Host 0
+ 22 xor0 XOR DMA 0
+
+ The following is a list of provided IDs for Dove:
+
+ ID Clock Peripheral
+ -----------------------------------
+ 0 usb0 USB Host 0
+ 1 usb1 USB Host 1
+ 2 ge Gigabit Ethernet
+ 3 sata SATA Host
+ 4 pex0 PCIe Cntrl 0
+ 5 pex1 PCIe Cntrl 1
+ 8 sdio0 SDHCI Host 0
+ 9 sdio1 SDHCI Host 1
+ 10 nand NAND Cntrl
+ 11 camera Camera Cntrl
+ 12 i2s0 I2S Cntrl 0
+ 13 i2s1 I2S Cntrl 1
+ 15 crypto CESA engine
+ 21 ac97 AC97 Cntrl
+ 22 pdma Peripheral DMA
+ 23 xor0 XOR DMA 0
+ 24 xor1 XOR DMA 1
+ 30 gephy Gigabit Ethernet PHY
+ Note: gephy(30) is implemented as a parent clock of ge(2)
+
+ The following is a list of provided IDs for Kirkwood:
+
+ ID Clock Peripheral
+ -----------------------------------
+ 0 ge0 Gigabit Ethernet 0
+ 2 pex0 PCIe Cntrl 0
+ 3 usb0 USB Host 0
+ 4 sdio SDIO Cntrl
+ 5 tsu Transp. Stream Unit
+ 6 dunit SDRAM Cntrl
+ 7 runit Runit
+ 8 xor0 XOR DMA 0
+ 9 audio I2S Cntrl 0
+ 14 sata0 SATA Host 0
+ 15 sata1 SATA Host 1
+ 16 xor1 XOR DMA 1
+ 17 crypto CESA engine
+ 18 pex1 PCIe Cntrl 1
+ 19 ge1 Gigabit Ethernet 1
+ 20 tdm Time Division Mplx
+
+properties:
+ compatible:
+ enum:
+ - marvell,armada-370-gating-clock
+ - marvell,armada-375-gating-clock
+ - marvell,armada-380-gating-clock
+ - marvell,armada-390-gating-clock
+ - marvell,armada-xp-gating-clock
+ - marvell,mv98dx3236-gating-clock
+ - marvell,dove-gating-clock
+ - marvell,kirkwood-gating-clock
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-controller@d0038 {
+ compatible = "marvell,dove-gating-clock";
+ reg = <0xd0038 0x4>;
+ /* default parent clock is tclk */
+ clocks = <&core_clk 0>;
+ #clock-cells = <1>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/maxim,max77686.txt b/Documentation/devicetree/bindings/clock/maxim,max77686.txt
deleted file mode 100644
index c10849efb444..000000000000
--- a/Documentation/devicetree/bindings/clock/maxim,max77686.txt
+++ /dev/null
@@ -1,114 +0,0 @@
-Binding for Maxim MAX77686/MAX77802/MAX77620 32k clock generator block
-
-This is a part of device tree bindings of MAX77686/MAX77802/MAX77620
-multi-function device. More information can be found in MFD DT binding
-doc as follows:
- bindings/mfd/max77686.txt for MAX77686 and
- bindings/mfd/max77802.txt for MAX77802 and
- bindings/mfd/max77620.txt for MAX77620.
-
-The MAX77686 contains three 32.768khz clock outputs that can be controlled
-(gated/ungated) over I2C. Clocks are defined as preprocessor macros in
-dt-bindings/clock/maxim,max77686.h.
-
-
-The MAX77802 contains two 32.768khz clock outputs that can be controlled
-(gated/ungated) over I2C. Clocks are defined as preprocessor macros in
-dt-bindings/clock/maxim,max77802.h.
-
-The MAX77686 contains one 32.768khz clock outputs that can be controlled
-(gated/ungated) over I2C. Clocks are defined as preprocessor macros in
-dt-bindings/clock/maxim,max77620.h.
-
-Following properties should be presend in main device node of the MFD chip.
-
-Required properties:
-
-- #clock-cells: from common clock binding; shall be set to 1.
-
-Optional properties:
-- clock-output-names: From common clock binding.
-
-Each clock is assigned an identifier and client nodes can use this identifier
-to specify the clock which they consume. Following indices are allowed:
- - 0: 32khz_ap clock (max77686, max77802), 32khz_out0 (max77620)
- - 1: 32khz_cp clock (max77686, max77802),
- - 2: 32khz_pmic clock (max77686).
-
-Clocks are defined as preprocessor macros in above dt-binding header for
-respective chips.
-
-Example:
-
-1. With MAX77686:
-
-#include <dt-bindings/clock/maxim,max77686.h>
-/* ... */
-
- Node of the MFD chip
- max77686: max77686@9 {
- compatible = "maxim,max77686";
- interrupt-parent = <&wakeup_eint>;
- interrupts = <26 IRQ_TYPE_LEVEL_LOW>;
- reg = <0x09>;
- #clock-cells = <1>;
-
- /* ... */
- };
-
- Clock consumer node
-
- foo@0 {
- compatible = "bar,foo";
- /* ... */
- clock-names = "my-clock";
- clocks = <&max77686 MAX77686_CLK_PMIC>;
- };
-
-2. With MAX77802:
-
-#include <dt-bindings/clock/maxim,max77802.h>
-/* ... */
-
- Node of the MFD chip
- max77802: max77802@9 {
- compatible = "maxim,max77802";
- interrupt-parent = <&wakeup_eint>;
- interrupts = <26 IRQ_TYPE_LEVEL_LOW>;
- reg = <0x09>;
- #clock-cells = <1>;
-
- /* ... */
- };
-
- Clock consumer node
-
- foo@0 {
- compatible = "bar,foo";
- /* ... */
- clock-names = "my-clock";
- clocks = <&max77802 MAX77802_CLK_32K_AP>;
- };
-
-
-3. With MAX77620:
-
-#include <dt-bindings/clock/maxim,max77620.h>
-/* ... */
-
- Node of the MFD chip
- max77620: max77620@3c {
- compatible = "maxim,max77620";
- reg = <0x3c>;
- #clock-cells = <1>;
- /* ... */
- };
-
- Clock consumer node
-
- foo@0 {
- compatible = "bar,foo";
- /* ... */
- clock-names = "my-clock";
- clocks = <&max77620 MAX77620_CLK_32K_OUT0>;
- };
diff --git a/Documentation/devicetree/bindings/clock/maxim,max9485.txt b/Documentation/devicetree/bindings/clock/maxim,max9485.txt
deleted file mode 100644
index 61bec1100a94..000000000000
--- a/Documentation/devicetree/bindings/clock/maxim,max9485.txt
+++ /dev/null
@@ -1,59 +0,0 @@
-Devicetree bindings for Maxim MAX9485 Programmable Audio Clock Generator
-
-This device exposes 4 clocks in total:
-
-- MAX9485_MCLKOUT: A gated, buffered output of the input clock of 27 MHz
-- MAX9485_CLKOUT: A PLL that can be configured to 16 different discrete
- frequencies
-- MAX9485_CLKOUT[1,2]: Two gated outputs for MAX9485_CLKOUT
-
-MAX9485_CLKOUT[1,2] are children of MAX9485_CLKOUT which upchain all rate set
-requests.
-
-Required properties:
-- compatible: "maxim,max9485"
-- clocks: Input clock, must provice 27.000 MHz
-- clock-names: Must be set to "xclk"
-- #clock-cells: From common clock binding; shall be set to 1
-
-Optional properties:
-- reset-gpios: GPIO descriptor connected to the #RESET input pin
-- vdd-supply: A regulator node for Vdd
-- clock-output-names: Name of output clocks, as defined in common clock
- bindings
-
-If not explicitly set, the output names are "mclkout", "clkout", "clkout1"
-and "clkout2".
-
-Clocks are defined as preprocessor macros in the dt-binding header.
-
-Example:
-
- #include <dt-bindings/clock/maxim,max9485.h>
-
- xo-27mhz: xo-27mhz {
- compatible = "fixed-clock";
- #clock-cells = <0>;
- clock-frequency = <27000000>;
- };
-
- &i2c0 {
- max9485: audio-clock@63 {
- reg = <0x63>;
- compatible = "maxim,max9485";
- clock-names = "xclk";
- clocks = <&xo-27mhz>;
- reset-gpios = <&gpio 1 GPIO_ACTIVE_HIGH>;
- vdd-supply = <&3v3-reg>;
- #clock-cells = <1>;
- };
- };
-
- // Clock consumer node
-
- foo@0 {
- compatible = "bar,foo";
- /* ... */
- clock-names = "foo-input-clk";
- clocks = <&max9485 MAX9485_CLKOUT1>;
- };
diff --git a/Documentation/devicetree/bindings/clock/maxim,max9485.yaml b/Documentation/devicetree/bindings/clock/maxim,max9485.yaml
new file mode 100644
index 000000000000..f9d8941c7235
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/maxim,max9485.yaml
@@ -0,0 +1,82 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/maxim,max9485.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Maxim MAX9485 Programmable Audio Clock Generator
+
+maintainers:
+ - Daniel Mack <daniel@zonque.org>
+
+description: >
+ Maxim MAX9485 Programmable Audio Clock Generator exposes 4 clocks in total:
+
+ - MAX9485_MCLKOUT: A gated, buffered output of the input clock of 27 MHz
+ - MAX9485_CLKOUT: A PLL that can be configured to 16 different discrete
+ frequencies
+ - MAX9485_CLKOUT[1,2]: Two gated outputs for MAX9485_CLKOUT
+
+ MAX9485_CLKOUT[1,2] are children of MAX9485_CLKOUT which upchain all rate set
+ requests.
+
+properties:
+ compatible:
+ const: maxim,max9485
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ description: Input clock. Must provide 27 MHz
+ maxItems: 1
+
+ clock-names:
+ items:
+ - const: xclk
+
+ '#clock-cells':
+ const: 1
+
+ reset-gpios:
+ description: >
+ GPIO descriptor connected to the #RESET input pin
+
+ vdd-supply:
+ description: A regulator node for Vdd
+
+ clock-output-names:
+ description: Name of output clocks, as defined in common clock bindings
+ items:
+ - const: mclkout
+ - const: clkout
+ - const: clkout1
+ - const: clkout2
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ clock-controller@63 {
+ compatible = "maxim,max9485";
+ reg = <0x63>;
+ #clock-cells = <1>;
+ clock-names = "xclk";
+ clocks = <&xo_27mhz>;
+ reset-gpios = <&gpio 1 GPIO_ACTIVE_HIGH>;
+ vdd-supply = <&reg_3v3>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/clock/mediatek,apmixedsys.yaml b/Documentation/devicetree/bindings/clock/mediatek,apmixedsys.yaml
index 372c1d744bc2..591a9e862c7d 100644
--- a/Documentation/devicetree/bindings/clock/mediatek,apmixedsys.yaml
+++ b/Documentation/devicetree/bindings/clock/mediatek,apmixedsys.yaml
@@ -12,7 +12,8 @@ maintainers:
description:
The Mediatek apmixedsys controller provides PLLs to the system.
- The clock values can be found in <dt-bindings/clock/mt*-clk.h>.
+ The clock values can be found in <dt-bindings/clock/mt*-clk.h>
+ and <dt-bindings/clock/mediatek,mt*-apmixedsys.h>.
properties:
compatible:
@@ -22,6 +23,7 @@ properties:
- mediatek,mt7622-apmixedsys
- mediatek,mt7981-apmixedsys
- mediatek,mt7986-apmixedsys
+ - mediatek,mt7988-apmixedsys
- mediatek,mt8135-apmixedsys
- mediatek,mt8173-apmixedsys
- mediatek,mt8516-apmixedsys
@@ -33,8 +35,9 @@ properties:
- enum:
- mediatek,mt2701-apmixedsys
- mediatek,mt2712-apmixedsys
+ - mediatek,mt6735-apmixedsys
- mediatek,mt6765-apmixedsys
- - mediatek,mt6779-apmixedsys
+ - mediatek,mt6779-apmixed
- mediatek,mt6795-apmixedsys
- mediatek,mt7629-apmixedsys
- mediatek,mt8167-apmixedsys
diff --git a/Documentation/devicetree/bindings/clock/mediatek,ethsys.yaml b/Documentation/devicetree/bindings/clock/mediatek,ethsys.yaml
new file mode 100644
index 000000000000..f9cddacc2eae
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/mediatek,ethsys.yaml
@@ -0,0 +1,55 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/mediatek,ethsys.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Mediatek ethsys controller
+
+description:
+ The available clocks are defined in dt-bindings/clock/mt*-clk.h.
+
+maintainers:
+ - James Liao <jamesjj.liao@mediatek.com>
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - mediatek,mt2701-ethsys
+ - mediatek,mt7622-ethsys
+ - mediatek,mt7629-ethsys
+ - mediatek,mt7981-ethsys
+ - mediatek,mt7986-ethsys
+ - mediatek,mt7988-ethsys
+ - const: syscon
+ - items:
+ - const: mediatek,mt7623-ethsys
+ - const: mediatek,mt2701-ethsys
+ - const: syscon
+
+ reg:
+ maxItems: 1
+
+ "#clock-cells":
+ const: 1
+
+ "#reset-cells":
+ const: 1
+
+required:
+ - reg
+ - "#clock-cells"
+ - "#reset-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-controller@1b000000 {
+ compatible = "mediatek,mt2701-ethsys", "syscon";
+ reg = <0x1b000000 0x1000>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,infracfg.yaml b/Documentation/devicetree/bindings/clock/mediatek,infracfg.yaml
index ea98043c6ba3..d1d30700d9b0 100644
--- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,infracfg.yaml
+++ b/Documentation/devicetree/bindings/clock/mediatek,infracfg.yaml
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
-$id: http://devicetree.org/schemas/arm/mediatek/mediatek,infracfg.yaml#
+$id: http://devicetree.org/schemas/clock/mediatek,infracfg.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: MediaTek Infrastructure System Configuration Controller
@@ -11,9 +11,10 @@ maintainers:
description:
The Mediatek infracfg controller provides various clocks and reset outputs
- to the system. The clock values can be found in <dt-bindings/clock/mt*-clk.h>,
- and reset values in <dt-bindings/reset/mt*-reset.h> and
- <dt-bindings/reset/mt*-resets.h>.
+ to the system. The clock values can be found in <dt-bindings/clock/mt*-clk.h>
+ and <dt-bindings/clock/mediatek,mt*-infracfg.h>, and reset values in
+ <dt-bindings/reset/mt*-reset.h>, <dt-bindings/reset/mt*-resets.h> and
+ <dt-bindings/reset/mediatek,mt*-infracfg.h>.
properties:
compatible:
@@ -22,6 +23,7 @@ properties:
- enum:
- mediatek,mt2701-infracfg
- mediatek,mt2712-infracfg
+ - mediatek,mt6735-infracfg
- mediatek,mt6765-infracfg
- mediatek,mt6795-infracfg
- mediatek,mt6779-infracfg_ao
@@ -30,6 +32,7 @@ properties:
- mediatek,mt7629-infracfg
- mediatek,mt7981-infracfg
- mediatek,mt7986-infracfg
+ - mediatek,mt7988-infracfg
- mediatek,mt8135-infracfg
- mediatek,mt8167-infracfg
- mediatek,mt8173-infracfg
diff --git a/Documentation/devicetree/bindings/clock/mediatek,mt2701-hifsys.yaml b/Documentation/devicetree/bindings/clock/mediatek,mt2701-hifsys.yaml
new file mode 100644
index 000000000000..9e7c725093aa
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/mediatek,mt2701-hifsys.yaml
@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/mediatek,mt2701-hifsys.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek HIFSYS clock and reset controller
+
+description:
+ The MediaTek HIFSYS controller provides various clocks and reset outputs to
+ the system.
+
+maintainers:
+ - Matthias Brugger <matthias.bgg@gmail.com>
+
+properties:
+ compatible:
+ oneOf:
+ - enum:
+ - mediatek,mt2701-hifsys
+ - mediatek,mt7622-hifsys
+ - items:
+ - enum:
+ - mediatek,mt7623-hifsys
+ - const: mediatek,mt2701-hifsys
+
+ reg:
+ maxItems: 1
+
+ "#clock-cells":
+ const: 1
+ description: The available clocks are defined in dt-bindings/clock/mt*-clk.h
+
+ "#reset-cells":
+ const: 1
+
+required:
+ - reg
+ - "#clock-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-controller@1a000000 {
+ compatible = "mediatek,mt2701-hifsys";
+ reg = <0x1a000000 0x1000>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/mediatek,mt6795-sys-clock.yaml b/Documentation/devicetree/bindings/clock/mediatek,mt6795-sys-clock.yaml
deleted file mode 100644
index 378b761237d3..000000000000
--- a/Documentation/devicetree/bindings/clock/mediatek,mt6795-sys-clock.yaml
+++ /dev/null
@@ -1,54 +0,0 @@
-# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
-%YAML 1.2
----
-$id: http://devicetree.org/schemas/clock/mediatek,mt6795-sys-clock.yaml#
-$schema: http://devicetree.org/meta-schemas/core.yaml#
-
-title: MediaTek System Clock Controller for MT6795
-
-maintainers:
- - AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
- - Chun-Jie Chen <chun-jie.chen@mediatek.com>
-
-description:
- The Mediatek system clock controller provides various clocks and system
- configuration like reset and bus protection on MT6795.
-
-properties:
- compatible:
- items:
- - enum:
- - mediatek,mt6795-apmixedsys
- - mediatek,mt6795-infracfg
- - mediatek,mt6795-pericfg
- - mediatek,mt6795-topckgen
- - const: syscon
-
- reg:
- maxItems: 1
-
- '#clock-cells':
- const: 1
-
- '#reset-cells':
- const: 1
-
-required:
- - compatible
- - reg
- - '#clock-cells'
-
-additionalProperties: false
-
-examples:
- - |
- soc {
- #address-cells = <2>;
- #size-cells = <2>;
-
- topckgen: clock-controller@10000000 {
- compatible = "mediatek,mt6795-topckgen", "syscon";
- reg = <0 0x10000000 0 0x1000>;
- #clock-cells = <1>;
- };
- };
diff --git a/Documentation/devicetree/bindings/clock/mediatek,mt7622-pciesys.yaml b/Documentation/devicetree/bindings/clock/mediatek,mt7622-pciesys.yaml
new file mode 100644
index 000000000000..9c3913f9092c
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/mediatek,mt7622-pciesys.yaml
@@ -0,0 +1,47 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/mediatek,mt7622-pciesys.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek PCIESYS clock and reset controller
+
+description:
+ The MediaTek PCIESYS controller provides various clocks to the system.
+
+maintainers:
+ - Matthias Brugger <matthias.bgg@gmail.com>
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - const: mediatek,mt7622-pciesys
+ - const: syscon
+ - const: mediatek,mt7629-pciesys
+
+ reg:
+ maxItems: 1
+
+ "#clock-cells":
+ const: 1
+ description: The available clocks are defined in dt-bindings/clock/mt*-clk.h
+
+ "#reset-cells":
+ const: 1
+
+required:
+ - reg
+ - "#clock-cells"
+ - "#reset-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-controller@1a100800 {
+ compatible = "mediatek,mt7622-pciesys", "syscon";
+ reg = <0x1a100800 0x1000>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/mediatek,mt7622-ssusbsys.yaml b/Documentation/devicetree/bindings/clock/mediatek,mt7622-ssusbsys.yaml
new file mode 100644
index 000000000000..da93eccdcfc1
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/mediatek,mt7622-ssusbsys.yaml
@@ -0,0 +1,45 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/mediatek,mt7622-ssusbsys.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek SSUSBSYS clock and reset controller
+
+description:
+ The MediaTek SSUSBSYS controller provides various clocks to the system.
+
+maintainers:
+ - Matthias Brugger <matthias.bgg@gmail.com>
+
+properties:
+ compatible:
+ enum:
+ - mediatek,mt7622-ssusbsys
+ - mediatek,mt7629-ssusbsys
+
+ reg:
+ maxItems: 1
+
+ "#clock-cells":
+ const: 1
+ description: The available clocks are defined in dt-bindings/clock/mt*-clk.h
+
+ "#reset-cells":
+ const: 1
+
+required:
+ - reg
+ - "#clock-cells"
+ - "#reset-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-controller@1a000000 {
+ compatible = "mediatek,mt7622-ssusbsys";
+ reg = <0x1a000000 0x1000>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/mediatek,mt7988-ethwarp.yaml b/Documentation/devicetree/bindings/clock/mediatek,mt7988-ethwarp.yaml
new file mode 100644
index 000000000000..e32a0251ff6a
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/mediatek,mt7988-ethwarp.yaml
@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/mediatek,mt7988-ethwarp.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek MT7988 ethwarp Controller
+
+maintainers:
+ - Daniel Golle <daniel@makrotopia.org>
+
+description:
+ The Mediatek MT7988 ethwarp controller provides clocks and resets for the
+ Ethernet related subsystems found the MT7988 SoC.
+ The clock values can be found in <dt-bindings/clock/mt*-clk.h>.
+
+properties:
+ compatible:
+ items:
+ - const: mediatek,mt7988-ethwarp
+
+ reg:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 1
+
+ '#reset-cells':
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - '#clock-cells'
+ - '#reset-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/reset/ti-syscon.h>
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ clock-controller@15031000 {
+ compatible = "mediatek,mt7988-ethwarp";
+ reg = <0 0x15031000 0 0x1000>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/clock/mediatek,mt7988-xfi-pll.yaml b/Documentation/devicetree/bindings/clock/mediatek,mt7988-xfi-pll.yaml
new file mode 100644
index 000000000000..192f1451f0af
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/mediatek,mt7988-xfi-pll.yaml
@@ -0,0 +1,48 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/mediatek,mt7988-xfi-pll.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek MT7988 XFI PLL Clock Controller
+
+maintainers:
+ - Daniel Golle <daniel@makrotopia.org>
+
+description:
+ The MediaTek XFI PLL controller provides the 156.25MHz clock for the
+ Ethernet SerDes PHY from the 40MHz top_xtal clock.
+
+properties:
+ compatible:
+ const: mediatek,mt7988-xfi-pll
+
+ reg:
+ maxItems: 1
+
+ resets:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - resets
+ - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ clock-controller@11f40000 {
+ compatible = "mediatek,mt7988-xfi-pll";
+ reg = <0 0x11f40000 0 0x1000>;
+ resets = <&watchdog 16>;
+ #clock-cells = <1>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8186-clock.yaml b/Documentation/devicetree/bindings/clock/mediatek,mt8186-clock.yaml
index 7cd14b163abe..f4e58bfa504f 100644
--- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8186-clock.yaml
+++ b/Documentation/devicetree/bindings/clock/mediatek,mt8186-clock.yaml
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
-$id: http://devicetree.org/schemas/arm/mediatek/mediatek,mt8186-clock.yaml#
+$id: http://devicetree.org/schemas/clock/mediatek,mt8186-clock.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: MediaTek Functional Clock Controller for MT8186
diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8186-sys-clock.yaml b/Documentation/devicetree/bindings/clock/mediatek,mt8186-sys-clock.yaml
index 64c769416690..1c446fbc5108 100644
--- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8186-sys-clock.yaml
+++ b/Documentation/devicetree/bindings/clock/mediatek,mt8186-sys-clock.yaml
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
-$id: http://devicetree.org/schemas/arm/mediatek/mediatek,mt8186-sys-clock.yaml#
+$id: http://devicetree.org/schemas/clock/mediatek,mt8186-sys-clock.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: MediaTek System Clock Controller for MT8186
diff --git a/Documentation/devicetree/bindings/clock/mediatek,mt8188-clock.yaml b/Documentation/devicetree/bindings/clock/mediatek,mt8188-clock.yaml
index d7214d97b2ba..5403242545ab 100644
--- a/Documentation/devicetree/bindings/clock/mediatek,mt8188-clock.yaml
+++ b/Documentation/devicetree/bindings/clock/mediatek,mt8188-clock.yaml
@@ -43,8 +43,6 @@ properties:
- mediatek,mt8188-vdecsys
- mediatek,mt8188-vdecsys-soc
- mediatek,mt8188-vencsys
- - mediatek,mt8188-vppsys0
- - mediatek,mt8188-vppsys1
- mediatek,mt8188-wpesys
- mediatek,mt8188-wpesys-vpp0
@@ -54,11 +52,35 @@ properties:
'#clock-cells':
const: 1
+ '#reset-cells':
+ const: 1
+
required:
- compatible
- reg
- '#clock-cells'
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - mediatek,mt8188-camsys-rawa
+ - mediatek,mt8188-camsys-rawb
+ - mediatek,mt8188-camsys-yuva
+ - mediatek,mt8188-camsys-yuvb
+ - mediatek,mt8188-imgsys-wpe1
+ - mediatek,mt8188-imgsys-wpe2
+ - mediatek,mt8188-imgsys-wpe3
+ - mediatek,mt8188-imgsys1-dip-nr
+ - mediatek,mt8188-imgsys1-dip-top
+ - mediatek,mt8188-ipesys
+
+ then:
+ required:
+ - '#reset-cells'
+
additionalProperties: false
examples:
diff --git a/Documentation/devicetree/bindings/clock/mediatek,mt8188-sys-clock.yaml b/Documentation/devicetree/bindings/clock/mediatek,mt8188-sys-clock.yaml
index 4cf8d3af9803..db13d51a4903 100644
--- a/Documentation/devicetree/bindings/clock/mediatek,mt8188-sys-clock.yaml
+++ b/Documentation/devicetree/bindings/clock/mediatek,mt8188-sys-clock.yaml
@@ -39,6 +39,9 @@ properties:
'#clock-cells':
const: 1
+ '#reset-cells':
+ const: 1
+
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8192-clock.yaml b/Documentation/devicetree/bindings/clock/mediatek,mt8192-clock.yaml
index dff4c8e8fd4b..b8d690e28bdc 100644
--- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8192-clock.yaml
+++ b/Documentation/devicetree/bindings/clock/mediatek,mt8192-clock.yaml
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
-$id: http://devicetree.org/schemas/arm/mediatek/mediatek,mt8192-clock.yaml#
+$id: http://devicetree.org/schemas/clock/mediatek,mt8192-clock.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: MediaTek Functional Clock Controller for MT8192
diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8192-sys-clock.yaml b/Documentation/devicetree/bindings/clock/mediatek,mt8192-sys-clock.yaml
index 8d608fddf3f9..bf8c9aacdf1e 100644
--- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8192-sys-clock.yaml
+++ b/Documentation/devicetree/bindings/clock/mediatek,mt8192-sys-clock.yaml
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
-$id: http://devicetree.org/schemas/arm/mediatek/mediatek,mt8192-sys-clock.yaml#
+$id: http://devicetree.org/schemas/clock/mediatek,mt8192-sys-clock.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: MediaTek System Clock Controller for MT8192
diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8195-clock.yaml b/Documentation/devicetree/bindings/clock/mediatek,mt8195-clock.yaml
index d17164b0b13e..fcc963aff087 100644
--- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8195-clock.yaml
+++ b/Documentation/devicetree/bindings/clock/mediatek,mt8195-clock.yaml
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
-$id: http://devicetree.org/schemas/arm/mediatek/mediatek,mt8195-clock.yaml#
+$id: http://devicetree.org/schemas/clock/mediatek,mt8195-clock.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: MediaTek Functional Clock Controller for MT8195
diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8195-sys-clock.yaml b/Documentation/devicetree/bindings/clock/mediatek,mt8195-sys-clock.yaml
index 066c9b3d6ac9..69f096eb168d 100644
--- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8195-sys-clock.yaml
+++ b/Documentation/devicetree/bindings/clock/mediatek,mt8195-sys-clock.yaml
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
-$id: http://devicetree.org/schemas/arm/mediatek/mediatek,mt8195-sys-clock.yaml#
+$id: http://devicetree.org/schemas/clock/mediatek,mt8195-sys-clock.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: MediaTek System Clock Controller for MT8195
diff --git a/Documentation/devicetree/bindings/clock/mediatek,mt8196-clock.yaml b/Documentation/devicetree/bindings/clock/mediatek,mt8196-clock.yaml
new file mode 100644
index 000000000000..bfdbd2e4a167
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/mediatek,mt8196-clock.yaml
@@ -0,0 +1,112 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/mediatek,mt8196-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek Functional Clock Controller for MT8196
+
+maintainers:
+ - Guangjie Song <guangjie.song@mediatek.com>
+ - Laura Nao <laura.nao@collabora.com>
+
+description: |
+ The clock architecture in MediaTek SoCs is structured like below:
+ PLLs -->
+ dividers -->
+ muxes
+ -->
+ clock gate
+
+ The device nodes provide clock gate control in different IP blocks.
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - mediatek,mt8196-imp-iic-wrap-c
+ - mediatek,mt8196-imp-iic-wrap-e
+ - mediatek,mt8196-imp-iic-wrap-n
+ - mediatek,mt8196-imp-iic-wrap-w
+ - mediatek,mt8196-mdpsys0
+ - mediatek,mt8196-mdpsys1
+ - mediatek,mt8196-pericfg-ao
+ - mediatek,mt8196-pextp0cfg-ao
+ - mediatek,mt8196-pextp1cfg-ao
+ - mediatek,mt8196-ufscfg-ao
+ - mediatek,mt8196-vencsys
+ - mediatek,mt8196-vencsys-c1
+ - mediatek,mt8196-vencsys-c2
+ - mediatek,mt8196-vdecsys
+ - mediatek,mt8196-vdecsys-soc
+ - mediatek,mt8196-vdisp-ao
+ - const: syscon
+
+ reg:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 1
+
+ '#reset-cells':
+ const: 1
+ description:
+ Reset lines for PEXTP0/1 and UFS blocks.
+
+ mediatek,hardware-voter:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: |
+ Phandle to the "Hardware Voter" (HWV), as named in the vendor
+ documentation for MT8196/MT6991.
+
+ The HWV is a SoC-internal fixed-function MCU used to collect votes from
+ both the Application Processor and other remote processors within the SoC.
+ It is intended to transparently enable or disable hardware resources (such
+ as power domains or clocks) based on internal vote aggregation handled by
+ the MCU's internal state machine.
+
+ However, in practice, this design is incomplete. While the HWV performs
+ some internal vote aggregation,software is still required to
+ - Manually enable power supplies externally, if present and if required
+ - Manually enable parent clocks via direct MMIO writes to clock controllers
+ - Enable the FENC after the clock has been ungated via direct MMIO
+ writes to clock controllers
+
+ As such, the HWV behaves more like a hardware-managed clock reference
+ counter than a true voter. Furthermore, it is not a separate
+ controller. It merely serves as an alternative interface to the same
+ underlying clock or power controller. Actual control still requires
+ direct access to the controller's own MMIO register space, in
+ addition to writing to the HWV's MMIO region.
+
+ For this reason, a custom phandle is used here - drivers need to directly
+ access the HWV MMIO region in a syscon-like fashion, due to how the
+ hardware is wired. This differs from true hardware voting systems, which
+ typically do not require custom phandles and rely instead on generic APIs
+ (clocks, power domains, interconnects).
+
+ The name "hardware-voter" is retained to match vendor documentation, but
+ this should not be reused or misunderstood as a proper voting mechanism.
+
+required:
+ - compatible
+ - reg
+ - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ pericfg_ao: clock-controller@16640000 {
+ compatible = "mediatek,mt8196-pericfg-ao", "syscon";
+ reg = <0x16640000 0x1000>;
+ mediatek,hardware-voter = <&scp_hwv>;
+ #clock-cells = <1>;
+ };
+ - |
+ pextp0cfg_ao: clock-controller@169b0000 {
+ compatible = "mediatek,mt8196-pextp0cfg-ao", "syscon";
+ reg = <0x169b0000 0x1000>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/mediatek,mt8196-sys-clock.yaml b/Documentation/devicetree/bindings/clock/mediatek,mt8196-sys-clock.yaml
new file mode 100644
index 000000000000..660ab64f390d
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/mediatek,mt8196-sys-clock.yaml
@@ -0,0 +1,107 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/mediatek,mt8196-sys-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek System Clock Controller for MT8196
+
+maintainers:
+ - Guangjie Song <guangjie.song@mediatek.com>
+ - Laura Nao <laura.nao@collabora.com>
+
+description: |
+ The clock architecture in MediaTek SoCs is structured like below:
+ PLLs -->
+ dividers -->
+ muxes
+ -->
+ clock gate
+
+ The apmixedsys, apmixedsys_gp2, vlpckgen, armpll, ccipll, mfgpll and ptppll
+ provide most of the PLLs which are generated from the SoC's 26MHZ crystal oscillator.
+ The topckgen, topckgen_gp2 and vlpckgen provide dividers and muxes which
+ provide the clock source to other IP blocks.
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - mediatek,mt8196-apmixedsys
+ - mediatek,mt8196-armpll-b-pll-ctrl
+ - mediatek,mt8196-armpll-bl-pll-ctrl
+ - mediatek,mt8196-armpll-ll-pll-ctrl
+ - mediatek,mt8196-apmixedsys-gp2
+ - mediatek,mt8196-ccipll-pll-ctrl
+ - mediatek,mt8196-mfgpll-pll-ctrl
+ - mediatek,mt8196-mfgpll-sc0-pll-ctrl
+ - mediatek,mt8196-mfgpll-sc1-pll-ctrl
+ - mediatek,mt8196-ptppll-pll-ctrl
+ - mediatek,mt8196-topckgen
+ - mediatek,mt8196-topckgen-gp2
+ - mediatek,mt8196-vlpckgen
+ - const: syscon
+
+ reg:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 1
+
+ mediatek,hardware-voter:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: |
+ Phandle to the "Hardware Voter" (HWV), as named in the vendor
+ documentation for MT8196/MT6991.
+
+ The HWV is a SoC-internal fixed-function MCU used to collect votes from
+ both the Application Processor and other remote processors within the SoC.
+ It is intended to transparently enable or disable hardware resources (such
+ as power domains or clocks) based on internal vote aggregation handled by
+ the MCU's internal state machine.
+
+ However, in practice, this design is incomplete. While the HWV performs
+ some internal vote aggregation,software is still required to
+ - Manually enable power supplies externally, if present and if required
+ - Manually enable parent clocks via direct MMIO writes to clock controllers
+ - Enable the FENC after the clock has been ungated via direct MMIO
+ writes to clock controllers
+
+ As such, the HWV behaves more like a hardware-managed clock reference
+ counter than a true voter. Furthermore, it is not a separate
+ controller. It merely serves as an alternative interface to the same
+ underlying clock or power controller. Actual control still requires
+ direct access to the controller's own MMIO register space, in
+ addition to writing to the HWV's MMIO region.
+
+ For this reason, a custom phandle is used here - drivers need to directly
+ access the HWV MMIO region in a syscon-like fashion, due to how the
+ hardware is wired. This differs from true hardware voting systems, which
+ typically do not require custom phandles and rely instead on generic APIs
+ (clocks, power domains, interconnects).
+
+ The name "hardware-voter" is retained to match vendor documentation, but
+ this should not be reused or misunderstood as a proper voting mechanism.
+
+required:
+ - compatible
+ - reg
+ - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ apmixedsys_clk: syscon@10000800 {
+ compatible = "mediatek,mt8196-apmixedsys", "syscon";
+ reg = <0x10000800 0x1000>;
+ #clock-cells = <1>;
+ };
+ - |
+ topckgen: syscon@10000000 {
+ compatible = "mediatek,mt8196-topckgen", "syscon";
+ reg = <0x10000000 0x800>;
+ mediatek,hardware-voter = <&scp_hwv>;
+ #clock-cells = <1>;
+ };
+
diff --git a/Documentation/devicetree/bindings/clock/mediatek,mtmips-sysc.yaml b/Documentation/devicetree/bindings/clock/mediatek,mtmips-sysc.yaml
new file mode 100644
index 000000000000..56bbd69b16d9
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/mediatek,mtmips-sysc.yaml
@@ -0,0 +1,77 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/mediatek,mtmips-sysc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MTMIPS SoCs System Controller
+
+maintainers:
+ - Sergio Paracuellos <sergio.paracuellos@gmail.com>
+
+description: |
+ MediaTek MIPS and Ralink SoCs provides a system controller to allow
+ to access to system control registers. These registers include clock
+ and reset related ones so this node is both clock and reset provider
+ for the rest of the world.
+
+ These SoCs have an XTAL from where the cpu clock is
+ provided as well as derived clocks for the bus and the peripherals.
+
+ Each clock is assigned an identifier and client nodes use this identifier
+ to specify the clock which they consume.
+
+ All these identifiers could be found in:
+ [1]: <include/dt-bindings/clock/mediatek,mtmips-sysc.h>.
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - ralink,mt7620-sysc
+ - ralink,mt7688-sysc
+ - ralink,rt2880-sysc
+ - ralink,rt3050-sysc
+ - ralink,rt3052-sysc
+ - ralink,rt3352-sysc
+ - ralink,rt3883-sysc
+ - ralink,rt5350-sysc
+ - const: syscon
+ - items:
+ - const: ralink,mt7628-sysc
+ - const: ralink,mt7688-sysc
+ - const: syscon
+
+ reg:
+ maxItems: 1
+
+ '#clock-cells':
+ description:
+ The first cell indicates the clock number, see [1] for available
+ clocks.
+ const: 1
+
+ '#reset-cells':
+ description:
+ The first cell indicates the reset bit within the register.
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - '#clock-cells'
+ - '#reset-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/mediatek,mtmips-sysc.h>
+
+ syscon@0 {
+ compatible = "ralink,rt5350-sysc", "syscon";
+ reg = <0x0 0x100>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,pericfg.yaml b/Documentation/devicetree/bindings/clock/mediatek,pericfg.yaml
index 26158d0d72f3..b98cf45efe2f 100644
--- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,pericfg.yaml
+++ b/Documentation/devicetree/bindings/clock/mediatek,pericfg.yaml
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
-$id: http://devicetree.org/schemas/arm/mediatek/mediatek,pericfg.yaml#
+$id: http://devicetree.org/schemas/clock/mediatek,pericfg.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: MediaTek Peripheral Configuration Controller
@@ -20,6 +20,7 @@ properties:
- enum:
- mediatek,mt2701-pericfg
- mediatek,mt2712-pericfg
+ - mediatek,mt6735-pericfg
- mediatek,mt6765-pericfg
- mediatek,mt6795-pericfg
- mediatek,mt7622-pericfg
@@ -28,6 +29,7 @@ properties:
- mediatek,mt8173-pericfg
- mediatek,mt8183-pericfg
- mediatek,mt8186-pericfg
+ - mediatek,mt8188-pericfg
- mediatek,mt8195-pericfg
- mediatek,mt8516-pericfg
- const: syscon
diff --git a/Documentation/devicetree/bindings/clock/mediatek,syscon.yaml b/Documentation/devicetree/bindings/clock/mediatek,syscon.yaml
new file mode 100644
index 000000000000..a52f90bfc9f9
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/mediatek,syscon.yaml
@@ -0,0 +1,112 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/mediatek,syscon.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek Clock controller syscon's
+
+maintainers:
+ - Matthias Brugger <matthias.bgg@gmail.com>
+ - AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
+
+description:
+ The MediaTek clock controller syscon's provide various clocks to the system.
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - mediatek,mt2701-bdpsys
+ - mediatek,mt2701-imgsys
+ - mediatek,mt2701-vdecsys
+ - mediatek,mt2712-bdpsys
+ - mediatek,mt2712-imgsys
+ - mediatek,mt2712-jpgdecsys
+ - mediatek,mt2712-mcucfg
+ - mediatek,mt2712-mfgcfg
+ - mediatek,mt2712-vdecsys
+ - mediatek,mt2712-vencsys
+ - mediatek,mt6735-imgsys
+ - mediatek,mt6735-mfgcfg
+ - mediatek,mt6735-vdecsys
+ - mediatek,mt6735-vencsys
+ - mediatek,mt6765-camsys
+ - mediatek,mt6765-imgsys
+ - mediatek,mt6765-mipi0a
+ - mediatek,mt6765-vcodecsys
+ - mediatek,mt6779-camsys
+ - mediatek,mt6779-imgsys
+ - mediatek,mt6779-ipesys
+ - mediatek,mt6779-mfgcfg
+ - mediatek,mt6779-vdecsys
+ - mediatek,mt6779-vencsys
+ - mediatek,mt6797-imgsys
+ - mediatek,mt6797-vdecsys
+ - mediatek,mt6797-vencsys
+ - mediatek,mt8167-imgsys
+ - mediatek,mt8167-mfgcfg
+ - mediatek,mt8167-vdecsys
+ - mediatek,mt8173-imgsys
+ - mediatek,mt8173-vdecsys
+ - mediatek,mt8173-vencltsys
+ - mediatek,mt8173-vencsys
+ - mediatek,mt8183-camsys
+ - mediatek,mt8183-imgsys
+ - mediatek,mt8183-ipu_conn
+ - mediatek,mt8183-ipu_adl
+ - mediatek,mt8183-ipu_core0
+ - mediatek,mt8183-ipu_core1
+ - mediatek,mt8183-mcucfg
+ - mediatek,mt8183-mfgcfg
+ - mediatek,mt8183-vdecsys
+ - mediatek,mt8183-vencsys
+ - const: syscon
+ - items:
+ - const: mediatek,mt7623-bdpsys
+ - const: mediatek,mt2701-bdpsys
+ - const: syscon
+ - items:
+ - const: mediatek,mt7623-imgsys
+ - const: mediatek,mt2701-imgsys
+ - const: syscon
+ - items:
+ - const: mediatek,mt7623-vdecsys
+ - const: mediatek,mt2701-vdecsys
+ - const: syscon
+
+ power-domains:
+ maxItems: 1
+
+ reg:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 1
+
+required:
+ - compatible
+ - '#clock-cells'
+
+if:
+ properties:
+ compatible:
+ contains:
+ const: mediatek,mt8183-mfgcfg
+then:
+ properties:
+ power-domains: true
+else:
+ properties:
+ power-domains: false
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-controller@11220000 {
+ compatible = "mediatek,mt2701-bdpsys", "syscon";
+ reg = <0x11220000 0x2000>;
+ #clock-cells = <1>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/mediatek,topckgen.yaml b/Documentation/devicetree/bindings/clock/mediatek,topckgen.yaml
index 6d087ded7437..c080fb0a1618 100644
--- a/Documentation/devicetree/bindings/clock/mediatek,topckgen.yaml
+++ b/Documentation/devicetree/bindings/clock/mediatek,topckgen.yaml
@@ -12,7 +12,8 @@ maintainers:
description:
The Mediatek topckgen controller provides various clocks to the system.
- The clock values can be found in <dt-bindings/clock/mt*-clk.h>.
+ The clock values can be found in <dt-bindings/clock/mt*-clk.h> and
+ <dt-bindings/clock/mediatek,mt*-topckgen.h>.
properties:
compatible:
@@ -31,12 +32,15 @@ properties:
- enum:
- mediatek,mt2701-topckgen
- mediatek,mt2712-topckgen
+ - mediatek,mt6735-topckgen
- mediatek,mt6765-topckgen
- mediatek,mt6779-topckgen
- mediatek,mt6795-topckgen
- mediatek,mt7629-topckgen
- mediatek,mt7981-topckgen
- mediatek,mt7986-topckgen
+ - mediatek,mt7988-mcusys
+ - mediatek,mt7988-topckgen
- mediatek,mt8167-topckgen
- mediatek,mt8183-topckgen
- const: syscon
diff --git a/Documentation/devicetree/bindings/clock/microchip,lan966x-gck.yaml b/Documentation/devicetree/bindings/clock/microchip,lan966x-gck.yaml
index df2bec188706..16106e8b637f 100644
--- a/Documentation/devicetree/bindings/clock/microchip,lan966x-gck.yaml
+++ b/Documentation/devicetree/bindings/clock/microchip,lan966x-gck.yaml
@@ -16,7 +16,18 @@ description: |
properties:
compatible:
- const: microchip,lan966x-gck
+ oneOf:
+ - enum:
+ - microchip,lan966x-gck
+ - microchip,lan9691-gck
+ - items:
+ - enum:
+ - microchip,lan9698-gck
+ - microchip,lan9696-gck
+ - microchip,lan9694-gck
+ - microchip,lan9693-gck
+ - microchip,lan9692-gck
+ - const: microchip,lan9691-gck
reg:
minItems: 1
diff --git a/Documentation/devicetree/bindings/clock/microchip,mpfs-clkcfg.yaml b/Documentation/devicetree/bindings/clock/microchip,mpfs-clkcfg.yaml
index e4e1c31267d2..ee4f31596d97 100644
--- a/Documentation/devicetree/bindings/clock/microchip,mpfs-clkcfg.yaml
+++ b/Documentation/devicetree/bindings/clock/microchip,mpfs-clkcfg.yaml
@@ -22,16 +22,23 @@ properties:
const: microchip,mpfs-clkcfg
reg:
- items:
- - description: |
- clock config registers:
- These registers contain enable, reset & divider tables for the, cpu,
- axi, ahb and rtc/mtimer reference clocks as well as enable and reset
- for the peripheral clocks.
- - description: |
- mss pll dri registers:
- Block of registers responsible for dynamic reconfiguration of the mss
- pll
+ oneOf:
+ - items:
+ - description: |
+ clock config registers:
+ These registers contain enable, reset & divider tables for the, cpu,
+ axi, ahb and rtc/mtimer reference clocks as well as enable and reset
+ for the peripheral clocks.
+ - description: |
+ mss pll dri registers:
+ Block of registers responsible for dynamic reconfiguration of the mss
+ pll
+ deprecated: true
+ - items:
+ - description: |
+ mss pll dri registers:
+ Block of registers responsible for dynamic reconfiguration of the mss
+ pll
clocks:
maxItems: 1
@@ -69,11 +76,12 @@ examples:
- |
#include <dt-bindings/clock/microchip,mpfs-clock.h>
soc {
- #address-cells = <2>;
- #size-cells = <2>;
- clkcfg: clock-controller@20002000 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ clkcfg: clock-controller@3E001000 {
compatible = "microchip,mpfs-clkcfg";
- reg = <0x0 0x20002000 0x0 0x1000>, <0x0 0x3E001000 0x0 0x1000>;
+ reg = <0x3E001000 0x1000>;
clocks = <&ref>;
#clock-cells = <1>;
};
diff --git a/Documentation/devicetree/bindings/clock/microchip,pic32.txt b/Documentation/devicetree/bindings/clock/microchip,pic32.txt
deleted file mode 100644
index c93d88fdd858..000000000000
--- a/Documentation/devicetree/bindings/clock/microchip,pic32.txt
+++ /dev/null
@@ -1,39 +0,0 @@
-Microchip PIC32 Clock Controller Binding
-----------------------------------------
-Microchip clock controller is consists of few oscillators, PLL, multiplexer
-and few divider modules.
-
-This binding uses common clock bindings.
-[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
-
-Required properties:
-- compatible: shall be "microchip,pic32mzda-clk".
-- reg: shall contain base address and length of clock registers.
-- #clock-cells: shall be 1.
-
-Optional properties:
-- microchip,pic32mzda-sosc: shall be added only if platform has
- secondary oscillator connected.
-
-Example:
- rootclk: clock-controller@1f801200 {
- compatible = "microchip,pic32mzda-clk";
- reg = <0x1f801200 0x200>;
- #clock-cells = <1>;
- /* optional */
- microchip,pic32mzda-sosc;
- };
-
-
-The clock consumer shall specify the desired clock-output of the clock
-controller (as defined in [2]) by specifying output-id in its "clock"
-phandle cell.
-[2] include/dt-bindings/clock/microchip,pic32-clock.h
-
-For example for UART2:
-uart2: serial@2 {
- compatible = "microchip,pic32mzda-uart";
- reg = <>;
- interrupts = <>;
- clocks = <&rootclk PB2CLK>;
-};
diff --git a/Documentation/devicetree/bindings/clock/microchip,pic32mzda-clk.yaml b/Documentation/devicetree/bindings/clock/microchip,pic32mzda-clk.yaml
new file mode 100644
index 000000000000..a14a838140f1
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/microchip,pic32mzda-clk.yaml
@@ -0,0 +1,45 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/microchip,pic32mzda-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip PIC32MZDA Clock Controller
+
+maintainers:
+ - Purna Chandra Mandal <purna.mandal@microchip.com>
+
+description:
+ Microchip clock controller consists of a few oscillators, PLL, multiplexer
+ and divider modules.
+
+properties:
+ compatible:
+ const: microchip,pic32mzda-clk
+
+ reg:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 1
+
+ microchip,pic32mzda-sosc:
+ description: Presence of secondary oscillator.
+ type: boolean
+
+required:
+ - compatible
+ - reg
+ - "#clock-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-controller@1f801200 {
+ compatible = "microchip,pic32mzda-clk";
+ reg = <0x1f801200 0x200>;
+ #clock-cells = <1>;
+ /* optional */
+ microchip,pic32mzda-sosc;
+ };
diff --git a/Documentation/devicetree/bindings/clock/milbeaut-clock.yaml b/Documentation/devicetree/bindings/clock/milbeaut-clock.yaml
index 0af1c569eb32..d786f1e2d007 100644
--- a/Documentation/devicetree/bindings/clock/milbeaut-clock.yaml
+++ b/Documentation/devicetree/bindings/clock/milbeaut-clock.yaml
@@ -40,38 +40,11 @@ required:
additionalProperties: false
examples:
- # Clock controller node:
- |
- m10v-clk-ctrl@1d021000 {
+ clock-controller@1d021000 {
compatible = "socionext,milbeaut-m10v-ccu";
reg = <0x1d021000 0x4000>;
#clock-cells = <1>;
clocks = <&clki40mhz>;
};
-
- # Required an external clock for Clock controller node:
- - |
- clocks {
- clki40mhz: clki40mhz {
- compatible = "fixed-clock";
- #clock-cells = <0>;
- clock-frequency = <40000000>;
- };
- /* other clocks */
- };
-
- # The clock consumer shall specify the desired clock-output of the clock
- # controller as below by specifying output-id in its "clk" phandle cell.
- # 2: uart
- # 4: 32-bit timer
- # 7: UHS-I/II
- - |
- serial@1e700010 {
- compatible = "socionext,milbeaut-usio-uart";
- reg = <0x1e700010 0x10>;
- interrupts = <0 141 0x4>, <0 149 0x4>;
- interrupt-names = "rx", "tx";
- clocks = <&clk 2>;
- };
-
...
diff --git a/Documentation/devicetree/bindings/clock/moxa,moxart-clock.txt b/Documentation/devicetree/bindings/clock/moxa,moxart-clock.txt
deleted file mode 100644
index fedea84314a1..000000000000
--- a/Documentation/devicetree/bindings/clock/moxa,moxart-clock.txt
+++ /dev/null
@@ -1,48 +0,0 @@
-Device Tree Clock bindings for arch-moxart
-
-This binding uses the common clock binding[1].
-
-[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
-
-MOXA ART SoCs allow to determine PLL output and APB frequencies
-by reading registers holding multiplier and divisor information.
-
-
-PLL:
-
-Required properties:
-- compatible : Must be "moxa,moxart-pll-clock"
-- #clock-cells : Should be 0
-- reg : Should contain registers location and length
-- clocks : Should contain phandle + clock-specifier for the parent clock
-
-Optional properties:
-- clock-output-names : Should contain clock name
-
-
-APB:
-
-Required properties:
-- compatible : Must be "moxa,moxart-apb-clock"
-- #clock-cells : Should be 0
-- reg : Should contain registers location and length
-- clocks : Should contain phandle + clock-specifier for the parent clock
-
-Optional properties:
-- clock-output-names : Should contain clock name
-
-
-For example:
-
- clk_pll: clk_pll@98100000 {
- compatible = "moxa,moxart-pll-clock";
- #clock-cells = <0>;
- reg = <0x98100000 0x34>;
- };
-
- clk_apb: clk_apb@98100000 {
- compatible = "moxa,moxart-apb-clock";
- #clock-cells = <0>;
- reg = <0x98100000 0x34>;
- clocks = <&clk_pll>;
- };
diff --git a/Documentation/devicetree/bindings/clock/moxa,moxart-clock.yaml b/Documentation/devicetree/bindings/clock/moxa,moxart-clock.yaml
new file mode 100644
index 000000000000..bcf7cc240eba
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/moxa,moxart-clock.yaml
@@ -0,0 +1,38 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/moxa,moxart-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MOXA ART Clock Controllers
+
+maintainers:
+ - Krzysztof Kozlowski <krzk@kernel.org>
+
+description:
+ MOXA ART SoCs allow to determine PLL output and APB frequencies by reading
+ registers holding multiplier and divisor information.
+
+properties:
+ compatible:
+ enum:
+ - moxa,moxart-apb-clock
+ - moxa,moxart-pll-clock
+
+ "#clock-cells":
+ const: 0
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-output-names: true
+
+additionalProperties: false
+
+required:
+ - compatible
+ - "#clock-cells"
+ - reg
diff --git a/Documentation/devicetree/bindings/clock/mvebu-core-clock.txt b/Documentation/devicetree/bindings/clock/mvebu-core-clock.txt
deleted file mode 100644
index d8f5c490f893..000000000000
--- a/Documentation/devicetree/bindings/clock/mvebu-core-clock.txt
+++ /dev/null
@@ -1,87 +0,0 @@
-* Core Clock bindings for Marvell MVEBU SoCs
-
-Marvell MVEBU SoCs usually allow to determine core clock frequencies by
-reading the Sample-At-Reset (SAR) register. The core clock consumer should
-specify the desired clock by having the clock ID in its "clocks" phandle cell.
-
-The following is a list of provided IDs and clock names on Armada 370/XP:
- 0 = tclk (Internal Bus clock)
- 1 = cpuclk (CPU clock)
- 2 = nbclk (L2 Cache clock)
- 3 = hclk (DRAM control clock)
- 4 = dramclk (DDR clock)
-
-The following is a list of provided IDs and clock names on Armada 375:
- 0 = tclk (Internal Bus clock)
- 1 = cpuclk (CPU clock)
- 2 = l2clk (L2 Cache clock)
- 3 = ddrclk (DDR clock)
-
-The following is a list of provided IDs and clock names on Armada 380/385:
- 0 = tclk (Internal Bus clock)
- 1 = cpuclk (CPU clock)
- 2 = l2clk (L2 Cache clock)
- 3 = ddrclk (DDR clock)
-
-The following is a list of provided IDs and clock names on Armada 39x:
- 0 = tclk (Internal Bus clock)
- 1 = cpuclk (CPU clock)
- 2 = nbclk (Coherent Fabric clock)
- 3 = hclk (SDRAM Controller Internal Clock)
- 4 = dclk (SDRAM Interface Clock)
- 5 = refclk (Reference Clock)
-
-The following is a list of provided IDs and clock names on 98dx3236:
- 0 = tclk (Internal Bus clock)
- 1 = cpuclk (CPU clock)
- 2 = ddrclk (DDR clock)
- 3 = mpll (MPLL Clock)
-
-The following is a list of provided IDs and clock names on Kirkwood and Dove:
- 0 = tclk (Internal Bus clock)
- 1 = cpuclk (CPU0 clock)
- 2 = l2clk (L2 Cache clock derived from CPU0 clock)
- 3 = ddrclk (DDR controller clock derived from CPU0 clock)
-
-The following is a list of provided IDs and clock names on Orion5x:
- 0 = tclk (Internal Bus clock)
- 1 = cpuclk (CPU0 clock)
- 2 = ddrclk (DDR controller clock derived from CPU0 clock)
-
-Required properties:
-- compatible : shall be one of the following:
- "marvell,armada-370-core-clock" - For Armada 370 SoC core clocks
- "marvell,armada-375-core-clock" - For Armada 375 SoC core clocks
- "marvell,armada-380-core-clock" - For Armada 380/385 SoC core clocks
- "marvell,armada-390-core-clock" - For Armada 39x SoC core clocks
- "marvell,armada-xp-core-clock" - For Armada XP SoC core clocks
- "marvell,mv98dx3236-core-clock" - For 98dx3236 family SoC core clocks
- "marvell,dove-core-clock" - for Dove SoC core clocks
- "marvell,kirkwood-core-clock" - for Kirkwood SoC (except mv88f6180)
- "marvell,mv88f6180-core-clock" - for Kirkwood MV88f6180 SoC
- "marvell,mv98dx1135-core-clock" - for Kirkwood 98dx1135 SoC
- "marvell,mv88f5181-core-clock" - for Orion MV88F5181 SoC
- "marvell,mv88f5182-core-clock" - for Orion MV88F5182 SoC
- "marvell,mv88f5281-core-clock" - for Orion MV88F5281 SoC
- "marvell,mv88f6183-core-clock" - for Orion MV88F6183 SoC
-- reg : shall be the register address of the Sample-At-Reset (SAR) register
-- #clock-cells : from common clock binding; shall be set to 1
-
-Optional properties:
-- clock-output-names : from common clock binding; allows overwrite default clock
- output names ("tclk", "cpuclk", "l2clk", "ddrclk")
-
-Example:
-
-core_clk: core-clocks@d0214 {
- compatible = "marvell,dove-core-clock";
- reg = <0xd0214 0x4>;
- #clock-cells = <1>;
-};
-
-spi0: spi@10600 {
- compatible = "marvell,orion-spi";
- /* ... */
- /* get tclk from core clock provider */
- clocks = <&core_clk 0>;
-};
diff --git a/Documentation/devicetree/bindings/clock/mvebu-corediv-clock.txt b/Documentation/devicetree/bindings/clock/mvebu-corediv-clock.txt
deleted file mode 100644
index c7b4e3a6b2c6..000000000000
--- a/Documentation/devicetree/bindings/clock/mvebu-corediv-clock.txt
+++ /dev/null
@@ -1,23 +0,0 @@
-* Core Divider Clock bindings for Marvell MVEBU SoCs
-
-The following is a list of provided IDs and clock names on Armada 370/XP:
- 0 = nand (NAND clock)
-
-Required properties:
-- compatible : must be "marvell,armada-370-corediv-clock",
- "marvell,armada-375-corediv-clock",
- "marvell,armada-380-corediv-clock",
- "marvell,mv98dx3236-corediv-clock",
-
-- reg : must be the register address of Core Divider control register
-- #clock-cells : from common clock binding; shall be set to 1
-- clocks : must be set to the parent's phandle
-
-Example:
-
-corediv_clk: corediv-clocks@18740 {
- compatible = "marvell,armada-370-corediv-clock";
- reg = <0x18740 0xc>;
- #clock-cells = <1>;
- clocks = <&pll>;
-};
diff --git a/Documentation/devicetree/bindings/clock/mvebu-cpu-clock.txt b/Documentation/devicetree/bindings/clock/mvebu-cpu-clock.txt
deleted file mode 100644
index 7f28506eaee7..000000000000
--- a/Documentation/devicetree/bindings/clock/mvebu-cpu-clock.txt
+++ /dev/null
@@ -1,23 +0,0 @@
-Device Tree Clock bindings for cpu clock of Marvell EBU platforms
-
-Required properties:
-- compatible : shall be one of the following:
- "marvell,armada-xp-cpu-clock" - cpu clocks for Armada XP
- "marvell,mv98dx3236-cpu-clock" - cpu clocks for 98DX3236 SoC
-- reg : Address and length of the clock complex register set, followed
- by address and length of the PMU DFS registers
-- #clock-cells : should be set to 1.
-- clocks : shall be the input parent clock phandle for the clock.
-
-cpuclk: clock-complex@d0018700 {
- #clock-cells = <1>;
- compatible = "marvell,armada-xp-cpu-clock";
- reg = <0xd0018700 0xA0>, <0x1c054 0x10>;
- clocks = <&coreclk 1>;
-}
-
-cpu@0 {
- compatible = "marvell,sheeva-v7";
- reg = <0>;
- clocks = <&cpuclk 0>;
-};
diff --git a/Documentation/devicetree/bindings/clock/mvebu-gated-clock.txt b/Documentation/devicetree/bindings/clock/mvebu-gated-clock.txt
deleted file mode 100644
index de562da2ae77..000000000000
--- a/Documentation/devicetree/bindings/clock/mvebu-gated-clock.txt
+++ /dev/null
@@ -1,205 +0,0 @@
-* Gated Clock bindings for Marvell EBU SoCs
-
-Marvell Armada 370/375/380/385/39x/XP, Dove and Kirkwood allow some
-peripheral clocks to be gated to save some power. The clock consumer
-should specify the desired clock by having the clock ID in its
-"clocks" phandle cell. The clock ID is directly mapped to the
-corresponding clock gating control bit in HW to ease manual clock
-lookup in datasheet.
-
-The following is a list of provided IDs for Armada 370:
-ID Clock Peripheral
------------------------------------
-0 Audio AC97 Cntrl
-1 pex0_en PCIe 0 Clock out
-2 pex1_en PCIe 1 Clock out
-3 ge1 Gigabit Ethernet 1
-4 ge0 Gigabit Ethernet 0
-5 pex0 PCIe Cntrl 0
-9 pex1 PCIe Cntrl 1
-15 sata0 SATA Host 0
-17 sdio SDHCI Host
-23 crypto CESA (crypto engine)
-25 tdm Time Division Mplx
-28 ddr DDR Cntrl
-30 sata1 SATA Host 0
-
-The following is a list of provided IDs for Armada 375:
-ID Clock Peripheral
------------------------------------
-2 mu Management Unit
-3 pp Packet Processor
-4 ptp PTP
-5 pex0 PCIe 0 Clock out
-6 pex1 PCIe 1 Clock out
-8 audio Audio Cntrl
-11 nd_clk Nand Flash Cntrl
-14 sata0_link SATA 0 Link
-15 sata0_core SATA 0 Core
-16 usb3 USB3 Host
-17 sdio SDHCI Host
-18 usb USB Host
-19 gop Gigabit Ethernet MAC
-20 sata1_link SATA 1 Link
-21 sata1_core SATA 1 Core
-22 xor0 XOR DMA 0
-23 xor1 XOR DMA 0
-24 copro Coprocessor
-25 tdm Time Division Mplx
-28 crypto0_enc Cryptographic Unit Port 0 Encryption
-29 crypto0_core Cryptographic Unit Port 0 Core
-30 crypto1_enc Cryptographic Unit Port 1 Encryption
-31 crypto1_core Cryptographic Unit Port 1 Core
-
-The following is a list of provided IDs for Armada 380/385:
-ID Clock Peripheral
------------------------------------
-0 audio Audio
-2 ge2 Gigabit Ethernet 2
-3 ge1 Gigabit Ethernet 1
-4 ge0 Gigabit Ethernet 0
-5 pex1 PCIe 1
-6 pex2 PCIe 2
-7 pex3 PCIe 3
-8 pex0 PCIe 0
-9 usb3h0 USB3 Host 0
-10 usb3h1 USB3 Host 1
-11 usb3d USB3 Device
-13 bm Buffer Management
-14 crypto0z Cryptographic 0 Z
-15 sata0 SATA 0
-16 crypto1z Cryptographic 1 Z
-17 sdio SDIO
-18 usb2 USB 2
-21 crypto1 Cryptographic 1
-22 xor0 XOR 0
-23 crypto0 Cryptographic 0
-25 tdm Time Division Multiplexing
-28 xor1 XOR 1
-30 sata1 SATA 1
-
-The following is a list of provided IDs for Armada 39x:
-ID Clock Peripheral
------------------------------------
-5 pex1 PCIe 1
-6 pex2 PCIe 2
-7 pex3 PCIe 3
-8 pex0 PCIe 0
-9 usb3h0 USB3 Host 0
-10 usb3h1 USB3 Host 1
-15 sata0 SATA 0
-17 sdio SDIO
-22 xor0 XOR 0
-28 xor1 XOR 1
-
-The following is a list of provided IDs for Armada XP:
-ID Clock Peripheral
------------------------------------
-0 audio Audio Cntrl
-1 ge3 Gigabit Ethernet 3
-2 ge2 Gigabit Ethernet 2
-3 ge1 Gigabit Ethernet 1
-4 ge0 Gigabit Ethernet 0
-5 pex0 PCIe Cntrl 0
-6 pex1 PCIe Cntrl 1
-7 pex2 PCIe Cntrl 2
-8 pex3 PCIe Cntrl 3
-13 bp
-14 sata0lnk
-15 sata0 SATA Host 0
-16 lcd LCD Cntrl
-17 sdio SDHCI Host
-18 usb0 USB Host 0
-19 usb1 USB Host 1
-20 usb2 USB Host 2
-22 xor0 XOR DMA 0
-23 crypto CESA engine
-25 tdm Time Division Mplx
-28 xor1 XOR DMA 1
-29 sata1lnk
-30 sata1 SATA Host 1
-
-The following is a list of provided IDs for 98dx3236:
-ID Clock Peripheral
------------------------------------
-3 ge1 Gigabit Ethernet 1
-4 ge0 Gigabit Ethernet 0
-5 pex0 PCIe Cntrl 0
-17 sdio SDHCI Host
-18 usb0 USB Host 0
-22 xor0 XOR DMA 0
-
-The following is a list of provided IDs for Dove:
-ID Clock Peripheral
------------------------------------
-0 usb0 USB Host 0
-1 usb1 USB Host 1
-2 ge Gigabit Ethernet
-3 sata SATA Host
-4 pex0 PCIe Cntrl 0
-5 pex1 PCIe Cntrl 1
-8 sdio0 SDHCI Host 0
-9 sdio1 SDHCI Host 1
-10 nand NAND Cntrl
-11 camera Camera Cntrl
-12 i2s0 I2S Cntrl 0
-13 i2s1 I2S Cntrl 1
-15 crypto CESA engine
-21 ac97 AC97 Cntrl
-22 pdma Peripheral DMA
-23 xor0 XOR DMA 0
-24 xor1 XOR DMA 1
-30 gephy Gigabit Ethernel PHY
-Note: gephy(30) is implemented as a parent clock of ge(2)
-
-The following is a list of provided IDs for Kirkwood:
-ID Clock Peripheral
------------------------------------
-0 ge0 Gigabit Ethernet 0
-2 pex0 PCIe Cntrl 0
-3 usb0 USB Host 0
-4 sdio SDIO Cntrl
-5 tsu Transp. Stream Unit
-6 dunit SDRAM Cntrl
-7 runit Runit
-8 xor0 XOR DMA 0
-9 audio I2S Cntrl 0
-14 sata0 SATA Host 0
-15 sata1 SATA Host 1
-16 xor1 XOR DMA 1
-17 crypto CESA engine
-18 pex1 PCIe Cntrl 1
-19 ge1 Gigabit Ethernet 1
-20 tdm Time Division Mplx
-
-Required properties:
-- compatible : shall be one of the following:
- "marvell,armada-370-gating-clock" - for Armada 370 SoC clock gating
- "marvell,armada-375-gating-clock" - for Armada 375 SoC clock gating
- "marvell,armada-380-gating-clock" - for Armada 380/385 SoC clock gating
- "marvell,armada-390-gating-clock" - for Armada 39x SoC clock gating
- "marvell,armada-xp-gating-clock" - for Armada XP SoC clock gating
- "marvell,mv98dx3236-gating-clock" - for 98dx3236 SoC clock gating
- "marvell,dove-gating-clock" - for Dove SoC clock gating
- "marvell,kirkwood-gating-clock" - for Kirkwood SoC clock gating
-- reg : shall be the register address of the Clock Gating Control register
-- #clock-cells : from common clock binding; shall be set to 1
-
-Optional properties:
-- clocks : default parent clock phandle (e.g. tclk)
-
-Example:
-
-gate_clk: clock-gating-control@d0038 {
- compatible = "marvell,dove-gating-clock";
- reg = <0xd0038 0x4>;
- /* default parent clock is tclk */
- clocks = <&core_clk 0>;
- #clock-cells = <1>;
-};
-
-sdio0: sdio@92000 {
- compatible = "marvell,dove-sdhci";
- /* get clk gate bit 8 (sdio0) */
- clocks = <&gate_clk 8>;
-};
diff --git a/Documentation/devicetree/bindings/clock/nspire-clock.txt b/Documentation/devicetree/bindings/clock/nspire-clock.txt
deleted file mode 100644
index 7c3bc8bb5b9f..000000000000
--- a/Documentation/devicetree/bindings/clock/nspire-clock.txt
+++ /dev/null
@@ -1,24 +0,0 @@
-TI-NSPIRE Clocks
-
-Required properties:
-- compatible: Valid compatible properties include:
- "lsi,nspire-cx-ahb-divider" for the AHB divider in the CX model
- "lsi,nspire-classic-ahb-divider" for the AHB divider in the older model
- "lsi,nspire-cx-clock" for the base clock in the CX model
- "lsi,nspire-classic-clock" for the base clock in the older model
-
-- reg: Physical base address of the controller and length of memory mapped
- region.
-
-Optional:
-- clocks: For the "nspire-*-ahb-divider" compatible clocks, this is the parent
- clock where it divides the rate from.
-
-Example:
-
-ahb_clk {
- #clock-cells = <0>;
- compatible = "lsi,nspire-cx-clock";
- reg = <0x900B0000 0x4>;
- clocks = <&base_clk>;
-};
diff --git a/Documentation/devicetree/bindings/clock/nuvoton,ma35d1-clk.yaml b/Documentation/devicetree/bindings/clock/nuvoton,ma35d1-clk.yaml
new file mode 100644
index 000000000000..8f0c43683729
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/nuvoton,ma35d1-clk.yaml
@@ -0,0 +1,63 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/nuvoton,ma35d1-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Nuvoton MA35D1 Clock Controller Module
+
+maintainers:
+ - Chi-Fang Li <cfli0@nuvoton.com>
+ - Jacky Huang <ychuang3@nuvoton.com>
+
+description: |
+ The MA35D1 clock controller generates clocks for the whole chip,
+ including system clocks and all peripheral clocks.
+
+ See also:
+ include/dt-bindings/clock/ma35d1-clk.h
+
+properties:
+ compatible:
+ items:
+ - const: nuvoton,ma35d1-clk
+
+ reg:
+ maxItems: 1
+
+ "#clock-cells":
+ const: 1
+
+ clocks:
+ maxItems: 1
+
+ nuvoton,pll-mode:
+ description:
+ A list of PLL operation mode corresponding to CAPLL, DDRPLL, APLL,
+ EPLL, and VPLL in sequential.
+ maxItems: 5
+ items:
+ enum:
+ - integer
+ - fractional
+ - spread-spectrum
+ $ref: /schemas/types.yaml#/definitions/non-unique-string-array
+
+required:
+ - compatible
+ - reg
+ - "#clock-cells"
+ - clocks
+
+additionalProperties: false
+
+examples:
+ - |
+
+ clock-controller@40460200 {
+ compatible = "nuvoton,ma35d1-clk";
+ reg = <0x40460200 0x100>;
+ #clock-cells = <1>;
+ clocks = <&clk_hxt>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/nuvoton,npcm750-clk.txt b/Documentation/devicetree/bindings/clock/nuvoton,npcm750-clk.txt
deleted file mode 100644
index f82064546d11..000000000000
--- a/Documentation/devicetree/bindings/clock/nuvoton,npcm750-clk.txt
+++ /dev/null
@@ -1,100 +0,0 @@
-* Nuvoton NPCM7XX Clock Controller
-
-Nuvoton Poleg BMC NPCM7XX contains an integrated clock controller, which
-generates and supplies clocks to all modules within the BMC.
-
-External clocks:
-
-There are six fixed clocks that are generated outside the BMC. All clocks are of
-a known fixed value that cannot be changed. clk_refclk, clk_mcbypck and
-clk_sysbypck are inputs to the clock controller.
-clk_rg1refck, clk_rg2refck and clk_xin are external clocks suppling the
-network. They are set on the device tree, but not used by the clock module. The
-network devices use them directly.
-Example can be found below.
-
-All available clocks are defined as preprocessor macros in:
-dt-bindings/clock/nuvoton,npcm7xx-clock.h
-and can be reused as DT sources.
-
-Required Properties of clock controller:
-
- - compatible: "nuvoton,npcm750-clk" : for clock controller of Nuvoton
- Poleg BMC NPCM750
-
- - reg: physical base address of the clock controller and length of
- memory mapped region.
-
- - #clock-cells: should be 1.
-
-Example: Clock controller node:
-
- clk: clock-controller@f0801000 {
- compatible = "nuvoton,npcm750-clk";
- #clock-cells = <1>;
- reg = <0xf0801000 0x1000>;
- clock-names = "refclk", "sysbypck", "mcbypck";
- clocks = <&clk_refclk>, <&clk_sysbypck>, <&clk_mcbypck>;
- };
-
-Example: Required external clocks for network:
-
- /* external reference clock */
- clk_refclk: clk-refclk {
- compatible = "fixed-clock";
- #clock-cells = <0>;
- clock-frequency = <25000000>;
- clock-output-names = "refclk";
- };
-
- /* external reference clock for cpu. float in normal operation */
- clk_sysbypck: clk-sysbypck {
- compatible = "fixed-clock";
- #clock-cells = <0>;
- clock-frequency = <800000000>;
- clock-output-names = "sysbypck";
- };
-
- /* external reference clock for MC. float in normal operation */
- clk_mcbypck: clk-mcbypck {
- compatible = "fixed-clock";
- #clock-cells = <0>;
- clock-frequency = <800000000>;
- clock-output-names = "mcbypck";
- };
-
- /* external clock signal rg1refck, supplied by the phy */
- clk_rg1refck: clk-rg1refck {
- compatible = "fixed-clock";
- #clock-cells = <0>;
- clock-frequency = <125000000>;
- clock-output-names = "clk_rg1refck";
- };
-
- /* external clock signal rg2refck, supplied by the phy */
- clk_rg2refck: clk-rg2refck {
- compatible = "fixed-clock";
- #clock-cells = <0>;
- clock-frequency = <125000000>;
- clock-output-names = "clk_rg2refck";
- };
-
- clk_xin: clk-xin {
- compatible = "fixed-clock";
- #clock-cells = <0>;
- clock-frequency = <50000000>;
- clock-output-names = "clk_xin";
- };
-
-
-Example: GMAC controller node that consumes two clocks: a generated clk by the
-clock controller and a fixed clock from DT (clk_rg1refck).
-
- ethernet0: ethernet@f0802000 {
- compatible = "snps,dwmac";
- reg = <0xf0802000 0x2000>;
- interrupts = <0 14 4>;
- interrupt-names = "macirq";
- clocks = <&clk_rg1refck>, <&clk NPCM7XX_CLK_AHB>;
- clock-names = "stmmaceth", "clk_gmac";
- };
diff --git a/Documentation/devicetree/bindings/clock/nuvoton,npcm750-clk.yaml b/Documentation/devicetree/bindings/clock/nuvoton,npcm750-clk.yaml
new file mode 100644
index 000000000000..694dac68619c
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/nuvoton,npcm750-clk.yaml
@@ -0,0 +1,66 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/nuvoton,npcm750-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Nuvoton NPCM7XX Clock Controller
+
+maintainers:
+ - Tali Perry <tali.perry1@gmail.com>
+
+description: >
+ Nuvoton Poleg BMC NPCM7XX contains an integrated clock controller, which
+ generates and supplies clocks to all modules within the BMC.
+
+ External clocks:
+
+ There are six fixed clocks that are generated outside the BMC. All clocks are of
+ a known fixed value that cannot be changed. clk_refclk, clk_mcbypck and
+ clk_sysbypck are inputs to the clock controller.
+ clk_rg1refck, clk_rg2refck and clk_xin are external clocks suppling the
+ network. They are set on the device tree, but not used by the clock module. The
+ network devices use them directly.
+
+ All available clocks are defined as preprocessor macros in:
+ dt-bindings/clock/nuvoton,npcm7xx-clock.h
+ and can be reused as DT sources.
+
+properties:
+ compatible:
+ const: nuvoton,npcm750-clk
+
+ reg:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 1
+
+ clock-names:
+ items:
+ - const: refclk
+ - const: sysbypck
+ - const: mcbypck
+
+ clocks:
+ items:
+ - description: refclk
+ - description: sysbypck
+ - description: mcbypck
+
+required:
+ - compatible
+ - reg
+ - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-controller@f0801000 {
+ compatible = "nuvoton,npcm750-clk";
+ #clock-cells = <1>;
+ reg = <0xf0801000 0x1000>;
+ clock-names = "refclk", "sysbypck", "mcbypck";
+ clocks = <&clk_refclk>, <&clk_sysbypck>, <&clk_mcbypck>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/nvidia,tegra124-car.yaml b/Documentation/devicetree/bindings/clock/nvidia,tegra124-car.yaml
index 1b2181f6d440..13bb616249a1 100644
--- a/Documentation/devicetree/bindings/clock/nvidia,tegra124-car.yaml
+++ b/Documentation/devicetree/bindings/clock/nvidia,tegra124-car.yaml
@@ -27,7 +27,9 @@ description: |
properties:
compatible:
- const: nvidia,tegra124-car
+ enum:
+ - nvidia,tegra124-car
+ - nvidia,tegra132-car
reg:
maxItems: 1
@@ -35,7 +37,7 @@ properties:
'#clock-cells':
const: 1
- "#reset-cells":
+ '#reset-cells':
const: 1
nvidia,external-memory-controller:
@@ -44,7 +46,7 @@ properties:
phandle of the external memory controller node
patternProperties:
- "^emc-timings-[0-9]+$":
+ '^emc-timings-[0-9]+$':
type: object
properties:
nvidia,ram-code:
@@ -54,7 +56,7 @@ patternProperties:
this timing set is used for
patternProperties:
- "^timing-[0-9]+$":
+ '^timing-[0-9]+$':
type: object
properties:
clock-frequency:
@@ -92,7 +94,7 @@ required:
- compatible
- reg
- '#clock-cells'
- - "#reset-cells"
+ - '#reset-cells'
additionalProperties: false
diff --git a/Documentation/devicetree/bindings/clock/nvidia,tegra20-car.yaml b/Documentation/devicetree/bindings/clock/nvidia,tegra20-car.yaml
index bee2dd4b29bf..73cccc0df424 100644
--- a/Documentation/devicetree/bindings/clock/nvidia,tegra20-car.yaml
+++ b/Documentation/devicetree/bindings/clock/nvidia,tegra20-car.yaml
@@ -39,11 +39,11 @@ properties:
'#clock-cells':
const: 1
- "#reset-cells":
+ '#reset-cells':
const: 1
patternProperties:
- "^(sclk)|(pll-[cem])$":
+ '^(sclk)|(pll-[cem])$':
type: object
properties:
compatible:
@@ -76,7 +76,7 @@ required:
- compatible
- reg
- '#clock-cells'
- - "#reset-cells"
+ - '#reset-cells'
additionalProperties: false
diff --git a/Documentation/devicetree/bindings/clock/nxp,imx95-blk-ctl.yaml b/Documentation/devicetree/bindings/clock/nxp,imx95-blk-ctl.yaml
new file mode 100644
index 000000000000..27403b4c52d6
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/nxp,imx95-blk-ctl.yaml
@@ -0,0 +1,60 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/nxp,imx95-blk-ctl.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP i.MX95 Block Control
+
+maintainers:
+ - Peng Fan <peng.fan@nxp.com>
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - nxp,imx94-display-csr
+ - nxp,imx94-lvds-csr
+ - nxp,imx95-camera-csr
+ - nxp,imx95-display-csr
+ - nxp,imx95-hsio-blk-ctl
+ - nxp,imx95-lvds-csr
+ - nxp,imx95-netcmix-blk-ctrl
+ - nxp,imx95-vpu-csr
+ - const: syscon
+
+ reg:
+ maxItems: 1
+
+ power-domains:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 1
+ description:
+ The clock consumer should specify the desired clock by having the clock
+ ID in its "clocks" phandle cell. See
+ include/dt-bindings/clock/nxp,imx95-clock.h
+
+required:
+ - compatible
+ - reg
+ - '#clock-cells'
+ - power-domains
+ - clocks
+
+additionalProperties: false
+
+examples:
+ - |
+ syscon@4c410000 {
+ compatible = "nxp,imx95-vpu-csr", "syscon";
+ reg = <0x4c410000 0x10000>;
+ #clock-cells = <1>;
+ clocks = <&scmi_clk 114>;
+ power-domains = <&scmi_devpd 21>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/nxp,imx95-display-master-csr.yaml b/Documentation/devicetree/bindings/clock/nxp,imx95-display-master-csr.yaml
new file mode 100644
index 000000000000..07f7412e7658
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/nxp,imx95-display-master-csr.yaml
@@ -0,0 +1,64 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/nxp,imx95-display-master-csr.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP i.MX95 Display Master Block Control
+
+maintainers:
+ - Peng Fan <peng.fan@nxp.com>
+
+properties:
+ compatible:
+ items:
+ - const: nxp,imx95-display-master-csr
+ - const: syscon
+
+ reg:
+ maxItems: 1
+
+ power-domains:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 1
+ description:
+ The clock consumer should specify the desired clock by having the clock
+ ID in its "clocks" phandle cell. See
+ include/dt-bindings/clock/nxp,imx95-clock.h
+
+ mux-controller:
+ type: object
+ $ref: /schemas/mux/reg-mux.yaml
+
+required:
+ - compatible
+ - reg
+ - '#clock-cells'
+ - mux-controller
+ - power-domains
+ - clocks
+
+additionalProperties: false
+
+examples:
+ - |
+ syscon@4c410000 {
+ compatible = "nxp,imx95-display-master-csr", "syscon";
+ reg = <0x4c410000 0x10000>;
+ #clock-cells = <1>;
+ clocks = <&scmi_clk 62>;
+ power-domains = <&scmi_devpd 3>;
+
+ mux: mux-controller {
+ compatible = "mmio-mux";
+ #mux-control-cells = <1>;
+ mux-reg-masks = <0x4 0x00000001>; /* Pixel_link_sel */
+ idle-states = <0>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/nxp,lpc1850-ccu.yaml b/Documentation/devicetree/bindings/clock/nxp,lpc1850-ccu.yaml
new file mode 100644
index 000000000000..5459038cc954
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/nxp,lpc1850-ccu.yaml
@@ -0,0 +1,104 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/nxp,lpc1850-ccu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP LPC1850 Clock Control Unit (CCU)
+
+description:
+ Each CGU base clock has several clock branches which can be turned on
+ or off independently by the Clock Control Units CCU1 or CCU2. The
+ branch clocks are distributed between CCU1 and CCU2.
+
+ Above text taken from NXP LPC1850 User Manual
+
+maintainers:
+ - Frank Li <Frank.Li@nxp.com>
+
+properties:
+ compatible:
+ const: nxp,lpc1850-ccu
+
+ reg:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 1
+
+ clocks:
+ minItems: 1
+ maxItems: 8
+
+ clock-names:
+ minItems: 1
+ maxItems: 8
+ items:
+ enum:
+ - base_usb0_clk
+ - base_periph_clk
+ - base_usb1_clk
+ - base_cpu_clk
+ - base_spifi_clk
+ - base_spi_clk
+ - base_apb1_clk
+ - base_apb3_clk
+ - base_adchs_clk
+ - base_sdio_clk
+ - base_ssp0_clk
+ - base_ssp1_clk
+ - base_uart0_clk
+ - base_uart1_clk
+ - base_uart2_clk
+ - base_uart3_clk
+ - base_audio_clk
+ description:
+ Which branch clocks that are available on the CCU depends on the
+ specific LPC part. Check the user manual for your specific part.
+
+ A list of CCU clocks can be found in dt-bindings/clock/lpc18xx-ccu.h.
+
+required:
+ - compatible
+ - reg
+ - '#clock-cells'
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/lpc18xx-cgu.h>
+
+ clock-controller@40051000 {
+ compatible = "nxp,lpc1850-ccu";
+ reg = <0x40051000 0x1000>;
+ #clock-cells = <1>;
+ clocks = <&cgu BASE_APB3_CLK>, <&cgu BASE_APB1_CLK>,
+ <&cgu BASE_SPIFI_CLK>, <&cgu BASE_CPU_CLK>,
+ <&cgu BASE_PERIPH_CLK>, <&cgu BASE_USB0_CLK>,
+ <&cgu BASE_USB1_CLK>, <&cgu BASE_SPI_CLK>;
+ clock-names = "base_apb3_clk", "base_apb1_clk",
+ "base_spifi_clk", "base_cpu_clk",
+ "base_periph_clk", "base_usb0_clk",
+ "base_usb1_clk", "base_spi_clk";
+ };
+
+ - |
+ #include <dt-bindings/clock/lpc18xx-cgu.h>
+
+ clock-controller@40052000 {
+ compatible = "nxp,lpc1850-ccu";
+ reg = <0x40052000 0x1000>;
+ #clock-cells = <1>;
+ clocks = <&cgu BASE_AUDIO_CLK>, <&cgu BASE_UART3_CLK>,
+ <&cgu BASE_UART2_CLK>, <&cgu BASE_UART1_CLK>,
+ <&cgu BASE_UART0_CLK>, <&cgu BASE_SSP1_CLK>,
+ <&cgu BASE_SSP0_CLK>, <&cgu BASE_SDIO_CLK>;
+ clock-names = "base_audio_clk", "base_uart3_clk",
+ "base_uart2_clk", "base_uart1_clk",
+ "base_uart0_clk", "base_ssp1_clk",
+ "base_ssp0_clk", "base_sdio_clk";
+ };
+
diff --git a/Documentation/devicetree/bindings/clock/nxp,lpc1850-cgu.yaml b/Documentation/devicetree/bindings/clock/nxp,lpc1850-cgu.yaml
new file mode 100644
index 000000000000..ed178c7df00c
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/nxp,lpc1850-cgu.yaml
@@ -0,0 +1,99 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/nxp,lpc1850-cgu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP LPC1850 Clock Generation Unit (CGU)
+
+description: >
+ The CGU generates multiple independent clocks for the core and the
+ peripheral blocks of the LPC18xx. Each independent clock is called
+ a base clock and itself is one of the inputs to the two Clock
+ Control Units (CCUs) which control the branch clocks to the
+ individual peripherals.
+
+ The CGU selects the inputs to the clock generators from multiple
+ clock sources, controls the clock generation, and routes the outputs
+ of the clock generators through the clock source bus to the output
+ stages. Each output stage provides an independent clock source and
+ corresponds to one of the base clocks for the LPC18xx.
+
+ Above text taken from NXP LPC1850 User Manual.
+
+maintainers:
+ - Frank Li <Frank.Li@nxp.com>
+
+properties:
+ compatible:
+ const: nxp,lpc1850-cgu
+
+ reg:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 1
+ description: |
+ Which base clocks that are available on the CGU depends on the
+ specific LPC part. Base clocks are numbered from 0 to 27.
+
+ Number: Name: Description:
+ 0 BASE_SAFE_CLK Base safe clock (always on) for WWDT
+ 1 BASE_USB0_CLK Base clock for USB0
+ 2 BASE_PERIPH_CLK Base clock for Cortex-M0SUB subsystem,
+ SPI, and SGPIO
+ 3 BASE_USB1_CLK Base clock for USB1
+ 4 BASE_CPU_CLK System base clock for ARM Cortex-M core
+ and APB peripheral blocks #0 and #2
+ 5 BASE_SPIFI_CLK Base clock for SPIFI
+ 6 BASE_SPI_CLK Base clock for SPI
+ 7 BASE_PHY_RX_CLK Base clock for Ethernet PHY Receive clock
+ 8 BASE_PHY_TX_CLK Base clock for Ethernet PHY Transmit clock
+ 9 BASE_APB1_CLK Base clock for APB peripheral block # 1
+ 10 BASE_APB3_CLK Base clock for APB peripheral block # 3
+ 11 BASE_LCD_CLK Base clock for LCD
+ 12 BASE_ADCHS_CLK Base clock for ADCHS
+ 13 BASE_SDIO_CLK Base clock for SD/MMC
+ 14 BASE_SSP0_CLK Base clock for SSP0
+ 15 BASE_SSP1_CLK Base clock for SSP1
+ 16 BASE_UART0_CLK Base clock for UART0
+ 17 BASE_UART1_CLK Base clock for UART1
+ 18 BASE_UART2_CLK Base clock for UART2
+ 19 BASE_UART3_CLK Base clock for UART3
+ 20 BASE_OUT_CLK Base clock for CLKOUT pin
+ 24-21 - Reserved
+ 25 BASE_AUDIO_CLK Base clock for audio system (I2S)
+ 26 BASE_CGU_OUT0_CLK Base clock for CGU_OUT0 clock output
+ 27 BASE_CGU_OUT1_CLK Base clock for CGU_OUT1 clock output
+
+ BASE_PERIPH_CLK and BASE_SPI_CLK is only available on LPC43xx.
+ BASE_ADCHS_CLK is only available on LPC4370.
+
+ clocks:
+ maxItems: 5
+
+ clock-indices:
+ minItems: 1
+ maxItems: 28
+
+ clock-output-names:
+ minItems: 1
+ maxItems: 28
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-controller@40050000 {
+ compatible = "nxp,lpc1850-cgu";
+ reg = <0x40050000 0x1000>;
+ #clock-cells = <1>;
+ clocks = <&xtal>, <&creg_clk 1>, <&enet_rx_clk>, <&enet_tx_clk>, <&gp_clkin>;
+ };
+
diff --git a/Documentation/devicetree/bindings/clock/nxp,lpc3220-clk.txt b/Documentation/devicetree/bindings/clock/nxp,lpc3220-clk.txt
deleted file mode 100644
index 20cbca3f41d8..000000000000
--- a/Documentation/devicetree/bindings/clock/nxp,lpc3220-clk.txt
+++ /dev/null
@@ -1,30 +0,0 @@
-NXP LPC32xx Clock Controller
-
-Required properties:
-- compatible: should be "nxp,lpc3220-clk"
-- reg: should contain clock controller registers location and length
-- #clock-cells: must be 1, the cell holds id of a clock provided by the
- clock controller
-- clocks: phandles of external oscillators, the list must contain one
- 32768 Hz oscillator and may have one optional high frequency oscillator
-- clock-names: list of external oscillator clock names, must contain
- "xtal_32k" and may have optional "xtal"
-
-Examples:
-
- /* System Control Block */
- scb {
- compatible = "simple-bus";
- ranges = <0x0 0x040004000 0x00001000>;
- #address-cells = <1>;
- #size-cells = <1>;
-
- clk: clock-controller@0 {
- compatible = "nxp,lpc3220-clk";
- reg = <0x00 0x114>;
- #clock-cells = <1>;
-
- clocks = <&xtal_32k>, <&xtal>;
- clock-names = "xtal_32k", "xtal";
- };
- };
diff --git a/Documentation/devicetree/bindings/clock/nxp,lpc3220-clk.yaml b/Documentation/devicetree/bindings/clock/nxp,lpc3220-clk.yaml
new file mode 100644
index 000000000000..16f79616d18a
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/nxp,lpc3220-clk.yaml
@@ -0,0 +1,51 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/nxp,lpc3220-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP LPC32xx Clock Controller
+
+maintainers:
+ - Animesh Agarwal <animeshagarwal28@gmail.com>
+
+properties:
+ compatible:
+ const: nxp,lpc3220-clk
+
+ reg:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 1
+
+ clocks:
+ minItems: 1
+ items:
+ - description: External 32768 Hz oscillator.
+ - description: Optional high frequency oscillator.
+
+ clock-names:
+ minItems: 1
+ items:
+ - const: xtal_32k
+ - const: xtal
+
+required:
+ - compatible
+ - reg
+ - '#clock-cells'
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-controller@0 {
+ compatible = "nxp,lpc3220-clk";
+ reg = <0x00 0x114>;
+ #clock-cells = <1>;
+ clocks = <&xtal_32k>, <&xtal>;
+ clock-names = "xtal_32k", "xtal";
+ };
diff --git a/Documentation/devicetree/bindings/clock/nxp,lpc3220-usb-clk.txt b/Documentation/devicetree/bindings/clock/nxp,lpc3220-usb-clk.txt
deleted file mode 100644
index 0aa249409b51..000000000000
--- a/Documentation/devicetree/bindings/clock/nxp,lpc3220-usb-clk.txt
+++ /dev/null
@@ -1,22 +0,0 @@
-NXP LPC32xx USB Clock Controller
-
-Required properties:
-- compatible: should be "nxp,lpc3220-usb-clk"
-- reg: should contain clock controller registers location and length
-- #clock-cells: must be 1, the cell holds id of a clock provided by the
- USB clock controller
-
-Examples:
-
- usb {
- #address-cells = <1>;
- #size-cells = <1>;
- compatible = "simple-bus";
- ranges = <0x0 0x31020000 0x00001000>;
-
- usbclk: clock-controller@f00 {
- compatible = "nxp,lpc3220-usb-clk";
- reg = <0xf00 0x100>;
- #clock-cells = <1>;
- };
- };
diff --git a/Documentation/devicetree/bindings/clock/nxp,lpc3220-usb-clk.yaml b/Documentation/devicetree/bindings/clock/nxp,lpc3220-usb-clk.yaml
new file mode 100644
index 000000000000..10361d2292fb
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/nxp,lpc3220-usb-clk.yaml
@@ -0,0 +1,35 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/nxp,lpc3220-usb-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP LPC32xx USB Clock Controller
+
+maintainers:
+ - Animesh Agarwal <animeshagarwal28@gmail.com>
+
+properties:
+ compatible:
+ const: nxp,lpc3220-usb-clk
+
+ reg:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-controller@f00 {
+ compatible = "nxp,lpc3220-usb-clk";
+ reg = <0xf00 0x100>;
+ #clock-cells = <1>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/oxnas,stdclk.txt b/Documentation/devicetree/bindings/clock/oxnas,stdclk.txt
deleted file mode 100644
index b652f3fb7796..000000000000
--- a/Documentation/devicetree/bindings/clock/oxnas,stdclk.txt
+++ /dev/null
@@ -1,28 +0,0 @@
-Oxford Semiconductor OXNAS SoC Family Standard Clocks
-================================================
-
-Please also refer to clock-bindings.txt in this directory for common clock
-bindings usage.
-
-Required properties:
-- compatible: For OX810SE, should be "oxsemi,ox810se-stdclk"
- For OX820, should be "oxsemi,ox820-stdclk"
-- #clock-cells: 1, see below
-
-Parent node should have the following properties :
-- compatible: For OX810SE, should be
- "oxsemi,ox810se-sys-ctrl", "syscon", "simple-mfd"
- For OX820, should be
- "oxsemi,ox820-sys-ctrl", "syscon", "simple-mfd"
-
-example:
-
-sys: sys-ctrl@000000 {
- compatible = "oxsemi,ox810se-sys-ctrl", "syscon", "simple-mfd";
- reg = <0x000000 0x100000>;
-
- stdclk: stdclk {
- compatible = "oxsemi,ox810se-stdclk";
- #clock-cells = <1>;
- };
-};
diff --git a/Documentation/devicetree/bindings/clock/pistachio-clock.txt b/Documentation/devicetree/bindings/clock/pistachio-clock.txt
deleted file mode 100644
index 868db499eed2..000000000000
--- a/Documentation/devicetree/bindings/clock/pistachio-clock.txt
+++ /dev/null
@@ -1,123 +0,0 @@
-Imagination Technologies Pistachio SoC clock controllers
-========================================================
-
-Pistachio has four clock controllers (core clock, peripheral clock, peripheral
-general control, and top general control) which are instantiated individually
-from the device-tree.
-
-External clocks:
-----------------
-
-There are three external inputs to the clock controllers which should be
-defined with the following clock-output-names:
-- "xtal": External 52Mhz oscillator (required)
-- "audio_clk_in": Alternate audio reference clock (optional)
-- "enet_clk_in": Alternate ethernet PHY clock (optional)
-
-Core clock controller:
-----------------------
-
-The core clock controller generates clocks for the CPU, RPU (WiFi + BT
-co-processor), audio, and several peripherals.
-
-Required properties:
-- compatible: Must be "img,pistachio-clk".
-- reg: Must contain the base address and length of the core clock controller.
-- #clock-cells: Must be 1. The single cell is the clock identifier.
- See dt-bindings/clock/pistachio-clk.h for the list of valid identifiers.
-- clocks: Must contain an entry for each clock in clock-names.
-- clock-names: Must include "xtal" (see "External clocks") and
- "audio_clk_in_gate", "enet_clk_in_gate" which are generated by the
- top-level general control.
-
-Example:
- clk_core: clock-controller@18144000 {
- compatible = "img,pistachio-clk";
- reg = <0x18144000 0x800>;
- clocks = <&xtal>, <&cr_top EXT_CLK_AUDIO_IN>,
- <&cr_top EXT_CLK_ENET_IN>;
- clock-names = "xtal", "audio_clk_in_gate", "enet_clk_in_gate";
-
- #clock-cells = <1>;
- };
-
-Peripheral clock controller:
-----------------------------
-
-The peripheral clock controller generates clocks for the DDR, ROM, and other
-peripherals. The peripheral system clock ("periph_sys") generated by the core
-clock controller is the input clock to the peripheral clock controller.
-
-Required properties:
-- compatible: Must be "img,pistachio-periph-clk".
-- reg: Must contain the base address and length of the peripheral clock
- controller.
-- #clock-cells: Must be 1. The single cell is the clock identifier.
- See dt-bindings/clock/pistachio-clk.h for the list of valid identifiers.
-- clocks: Must contain an entry for each clock in clock-names.
-- clock-names: Must include "periph_sys", the peripheral system clock generated
- by the core clock controller.
-
-Example:
- clk_periph: clock-controller@18144800 {
- compatible = "img,pistachio-clk-periph";
- reg = <0x18144800 0x800>;
- clocks = <&clk_core CLK_PERIPH_SYS>;
- clock-names = "periph_sys";
-
- #clock-cells = <1>;
- };
-
-Peripheral general control:
----------------------------
-
-The peripheral general control block generates system interface clocks and
-resets for various peripherals. It also contains miscellaneous peripheral
-control registers. The system clock ("sys") generated by the peripheral clock
-controller is the input clock to the system clock controller.
-
-Required properties:
-- compatible: Must include "img,pistachio-periph-cr" and "syscon".
-- reg: Must contain the base address and length of the peripheral general
- control registers.
-- #clock-cells: Must be 1. The single cell is the clock identifier.
- See dt-bindings/clock/pistachio-clk.h for the list of valid identifiers.
-- clocks: Must contain an entry for each clock in clock-names.
-- clock-names: Must include "sys", the system clock generated by the peripheral
- clock controller.
-
-Example:
- cr_periph: syscon@18144800 {
- compatible = "img,pistachio-cr-periph", "syscon";
- reg = <0x18148000 0x1000>;
- clocks = <&clock_periph PERIPH_CLK_PERIPH_SYS>;
- clock-names = "sys";
-
- #clock-cells = <1>;
- };
-
-Top-level general control:
---------------------------
-
-The top-level general control block contains miscellaneous control registers and
-gates for the external clocks "audio_clk_in" and "enet_clk_in".
-
-Required properties:
-- compatible: Must include "img,pistachio-cr-top" and "syscon".
-- reg: Must contain the base address and length of the top-level
- control registers.
-- clocks: Must contain an entry for each clock in clock-names.
-- clock-names: Two optional clocks, "audio_clk_in" and "enet_clk_in" (see
- "External clocks").
-- #clock-cells: Must be 1. The single cell is the clock identifier.
- See dt-bindings/clock/pistachio-clk.h for the list of valid identifiers.
-
-Example:
- cr_top: syscon@18144800 {
- compatible = "img,pistachio-cr-top", "syscon";
- reg = <0x18149000 0x200>;
- clocks = <&audio_refclk>, <&ext_enet_in>;
- clock-names = "audio_clk_in", "enet_clk_in";
-
- #clock-cells = <1>;
- };
diff --git a/Documentation/devicetree/bindings/clock/qca,ath79-pll.txt b/Documentation/devicetree/bindings/clock/qca,ath79-pll.txt
deleted file mode 100644
index 241fb0545b9e..000000000000
--- a/Documentation/devicetree/bindings/clock/qca,ath79-pll.txt
+++ /dev/null
@@ -1,33 +0,0 @@
-Binding for Qualcomm Atheros AR7xxx/AR9XXX PLL controller
-
-The PPL controller provides the 3 main clocks of the SoC: CPU, DDR and AHB.
-
-Required Properties:
-- compatible: has to be "qca,<soctype>-pll" and one of the following
- fallbacks:
- - "qca,ar7100-pll"
- - "qca,ar7240-pll"
- - "qca,ar9130-pll"
- - "qca,ar9330-pll"
- - "qca,ar9340-pll"
- - "qca,qca9550-pll"
-- reg: Base address and size of the controllers memory area
-- clock-names: Name of the input clock, has to be "ref"
-- clocks: phandle of the external reference clock
-- #clock-cells: has to be one
-
-Optional properties:
-- clock-output-names: should be "cpu", "ddr", "ahb"
-
-Example:
-
- pll-controller@18050000 {
- compatible = "qca,ar9132-pll", "qca,ar9130-pll";
- reg = <0x18050000 0x20>;
-
- clock-names = "ref";
- clocks = <&extosc>;
-
- #clock-cells = <1>;
- clock-output-names = "cpu", "ddr", "ahb";
- };
diff --git a/Documentation/devicetree/bindings/clock/qca,ath79-pll.yaml b/Documentation/devicetree/bindings/clock/qca,ath79-pll.yaml
new file mode 100644
index 000000000000..69863e8a4648
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qca,ath79-pll.yaml
@@ -0,0 +1,70 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qca,ath79-pll.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Atheros ATH79 PLL controller
+
+maintainers:
+ - Alban Bedel <albeu@free.fr>
+ - Antony Pavlov <antonynpavlov@gmail.com>
+
+description: >
+ The PLL controller provides the 3 main clocks of the SoC: CPU, DDR and AHB.
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - const: qca,ar9132-pll
+ - const: qca,ar9130-pll
+ - items:
+ - enum:
+ - qca,ar7100-pll
+ - qca,ar7240-pll
+ - qca,ar9130-pll
+ - qca,ar9330-pll
+ - qca,ar9340-pll
+ - qca,qca9530-pll
+ - qca,qca9550-pll
+ - qca,qca9560-pll
+
+ reg:
+ maxItems: 1
+
+ clock-names:
+ items:
+ - const: ref
+
+ clocks:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 1
+
+ clock-output-names:
+ items:
+ - const: cpu
+ - const: ddr
+ - const: ahb
+
+required:
+ - compatible
+ - reg
+ - clock-names
+ - clocks
+ - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-controller@18050000 {
+ compatible = "qca,ar9132-pll", "qca,ar9130-pll";
+ reg = <0x18050000 0x20>;
+ clock-names = "ref";
+ clocks = <&extosc>;
+ #clock-cells = <1>;
+ clock-output-names = "cpu", "ddr", "ahb";
+ };
diff --git a/Documentation/devicetree/bindings/clock/qcom,a53pll.yaml b/Documentation/devicetree/bindings/clock/qcom,a53pll.yaml
index 659669bf224b..47ceab641a4c 100644
--- a/Documentation/devicetree/bindings/clock/qcom,a53pll.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,a53pll.yaml
@@ -16,9 +16,12 @@ description:
properties:
compatible:
enum:
+ - qcom,ipq5018-a53pll
- qcom,ipq5332-a53pll
- qcom,ipq6018-a53pll
- qcom,ipq8074-a53pll
+ - qcom,ipq9574-a73pll
+ - qcom,msm8226-a7pll
- qcom,msm8916-a53pll
- qcom,msm8939-a53pll
@@ -38,6 +41,9 @@ properties:
operating-points-v2: true
+ opp-table:
+ type: object
+
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/clock/qcom,camcc-sm8250.yaml b/Documentation/devicetree/bindings/clock/qcom,camcc-sm8250.yaml
index 426335a2841c..5c3ff37ec0d7 100644
--- a/Documentation/devicetree/bindings/clock/qcom,camcc-sm8250.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,camcc-sm8250.yaml
@@ -13,7 +13,10 @@ description: |
Qualcomm camera clock control module provides the clocks, resets and
power domains on SM8250.
- See also:: include/dt-bindings/clock/qcom,camcc-sm8250.h
+ See also: include/dt-bindings/clock/qcom,camcc-sm8250.h
+
+allOf:
+ - $ref: qcom,gcc.yaml#
properties:
compatible:
@@ -33,15 +36,6 @@ properties:
- const: bi_tcxo_ao
- const: sleep_clk
- '#clock-cells':
- const: 1
-
- '#reset-cells':
- const: 1
-
- '#power-domain-cells':
- const: 1
-
power-domains:
items:
- description: MMCX power domain
@@ -56,14 +50,10 @@ properties:
required:
- compatible
- - reg
- clocks
- clock-names
- - '#clock-cells'
- - '#reset-cells'
- - '#power-domain-cells'
-additionalProperties: false
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/clock/qcom,dispcc-sc8280xp.yaml b/Documentation/devicetree/bindings/clock/qcom,dispcc-sc8280xp.yaml
index 3cb996b2c9d5..ffae037779a1 100644
--- a/Documentation/devicetree/bindings/clock/qcom,dispcc-sc8280xp.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,dispcc-sc8280xp.yaml
@@ -40,31 +40,19 @@ properties:
- description: DSI 1 PLL byte clock
- description: DSI 1 PLL DSI clock
- '#clock-cells':
- const: 1
-
- '#reset-cells':
- const: 1
-
- '#power-domain-cells':
- const: 1
-
- reg:
- maxItems: 1
-
power-domains:
items:
- description: MMCX power domain
required:
- compatible
- - reg
- clocks
- - '#clock-cells'
- - '#reset-cells'
- '#power-domain-cells'
-additionalProperties: false
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/clock/qcom,dispcc-sm6125.yaml b/Documentation/devicetree/bindings/clock/qcom,dispcc-sm6125.yaml
index 8a210c4c5f82..ef2b1e204430 100644
--- a/Documentation/devicetree/bindings/clock/qcom,dispcc-sm6125.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,dispcc-sm6125.yaml
@@ -13,7 +13,7 @@ description: |
Qualcomm display clock control module provides the clocks and power domains
on SM6125.
- See also:: include/dt-bindings/clock/qcom,dispcc-sm6125.h
+ See also: include/dt-bindings/clock/qcom,dispcc-sm6125.h
properties:
compatible:
@@ -29,6 +29,7 @@ properties:
- description: Link clock from DP PHY
- description: VCO DIV clock from DP PHY
- description: AHB config clock from GCC
+ - description: GPLL0 div source from GCC
clock-names:
items:
@@ -39,6 +40,7 @@ properties:
- const: dp_phy_pll_link_clk
- const: dp_phy_pll_vco_div_clk
- const: cfg_ahb_clk
+ - const: gcc_disp_gpll0_div_clk_src
'#clock-cells':
const: 1
@@ -46,6 +48,16 @@ properties:
'#power-domain-cells':
const: 1
+ power-domains:
+ description:
+ A phandle and PM domain specifier for the CX power domain.
+ maxItems: 1
+
+ required-opps:
+ description:
+ A phandle to an OPP node describing the power domain's performance point.
+ maxItems: 1
+
reg:
maxItems: 1
@@ -63,23 +75,31 @@ examples:
- |
#include <dt-bindings/clock/qcom,rpmcc.h>
#include <dt-bindings/clock/qcom,gcc-sm6125.h>
+ #include <dt-bindings/power/qcom-rpmpd.h>
clock-controller@5f00000 {
compatible = "qcom,sm6125-dispcc";
reg = <0x5f00000 0x20000>;
+
clocks = <&rpmcc RPM_SMD_XO_CLK_SRC>,
<&dsi0_phy 0>,
<&dsi0_phy 1>,
<&dsi1_phy 1>,
<&dp_phy 0>,
<&dp_phy 1>,
- <&gcc GCC_DISP_AHB_CLK>;
+ <&gcc GCC_DISP_AHB_CLK>,
+ <&gcc GCC_DISP_GPLL0_DIV_CLK_SRC>;
clock-names = "bi_tcxo",
"dsi0_phy_pll_out_byteclk",
"dsi0_phy_pll_out_dsiclk",
"dsi1_phy_pll_out_dsiclk",
"dp_phy_pll_link_clk",
"dp_phy_pll_vco_div_clk",
- "cfg_ahb_clk";
+ "cfg_ahb_clk",
+ "gcc_disp_gpll0_div_clk_src";
+
+ required-opps = <&rpmhpd_opp_ret>;
+ power-domains = <&rpmpd SM6125_VDDCX>;
+
#clock-cells = <1>;
#power-domain-cells = <1>;
};
diff --git a/Documentation/devicetree/bindings/clock/qcom,dispcc-sm6350.yaml b/Documentation/devicetree/bindings/clock/qcom,dispcc-sm6350.yaml
index 8efac3fb159f..a602e882e964 100644
--- a/Documentation/devicetree/bindings/clock/qcom,dispcc-sm6350.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,dispcc-sm6350.yaml
@@ -7,13 +7,13 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Qualcomm Display Clock & Reset Controller on SM6350
maintainers:
- - Konrad Dybcio <konrad.dybcio@somainline.org>
+ - Konrad Dybcio <konradybcio@kernel.org>
description: |
Qualcomm display clock control module provides the clocks, resets and power
domains on SM6350.
- See also:: include/dt-bindings/clock/qcom,dispcc-sm6350.h
+ See also: include/dt-bindings/clock/qcom,dispcc-sm6350.h
properties:
compatible:
@@ -37,28 +37,16 @@ properties:
- const: dp_phy_pll_link_clk
- const: dp_phy_pll_vco_div_clk
- '#clock-cells':
- const: 1
-
- '#reset-cells':
- const: 1
-
- '#power-domain-cells':
- const: 1
-
- reg:
- maxItems: 1
-
required:
- compatible
- - reg
- clocks
- clock-names
- - '#clock-cells'
- - '#reset-cells'
- '#power-domain-cells'
-additionalProperties: false
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/clock/qcom,dispcc-sm8x50.yaml b/Documentation/devicetree/bindings/clock/qcom,dispcc-sm8x50.yaml
index d6774db257f0..53a5ab319159 100644
--- a/Documentation/devicetree/bindings/clock/qcom,dispcc-sm8x50.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,dispcc-sm8x50.yaml
@@ -27,6 +27,7 @@ properties:
- qcom,sm8350-dispcc
clocks:
+ minItems: 7
items:
- description: Board XO source
- description: Byte clock from DSI PHY0
@@ -35,8 +36,15 @@ properties:
- description: Pixel clock from DSI PHY1
- description: Link clock from DP PHY
- description: VCO DIV clock from DP PHY
+ - description: Link clock from eDP PHY
+ - description: VCO DIV clock from eDP PHY
+ - description: Link clock from DP1 PHY
+ - description: VCO DIV clock from DP1 PHY
+ - description: Link clock from DP2 PHY
+ - description: VCO DIV clock from DP2 PHY
clock-names:
+ minItems: 7
items:
- const: bi_tcxo
- const: dsi0_phy_pll_out_byteclk
@@ -45,18 +53,12 @@ properties:
- const: dsi1_phy_pll_out_dsiclk
- const: dp_phy_pll_link_clk
- const: dp_phy_pll_vco_div_clk
-
- '#clock-cells':
- const: 1
-
- '#reset-cells':
- const: 1
-
- '#power-domain-cells':
- const: 1
-
- reg:
- maxItems: 1
+ - const: edp_phy_pll_link_clk
+ - const: edp_phy_pll_vco_div_clk
+ - const: dptx1_phy_pll_link_clk
+ - const: dptx1_phy_pll_vco_div_clk
+ - const: dptx2_phy_pll_link_clk
+ - const: dptx2_phy_pll_vco_div_clk
power-domains:
description:
@@ -70,19 +72,31 @@ properties:
required:
- compatible
- - reg
- clocks
- clock-names
- - '#clock-cells'
- - '#reset-cells'
- '#power-domain-cells'
-additionalProperties: false
+allOf:
+ - $ref: qcom,gcc.yaml#
+ - if:
+ not:
+ properties:
+ compatible:
+ contains:
+ const: qcom,sc8180x-dispcc
+ then:
+ properties:
+ clocks:
+ maxItems: 7
+ clock-names:
+ maxItems: 7
+
+unevaluatedProperties: false
examples:
- |
#include <dt-bindings/clock/qcom,rpmh.h>
- #include <dt-bindings/power/qcom-rpmpd.h>
+ #include <dt-bindings/power/qcom,rpmhpd.h>
clock-controller@af00000 {
compatible = "qcom,sm8250-dispcc";
reg = <0x0af00000 0x10000>;
@@ -103,7 +117,7 @@ examples:
#clock-cells = <1>;
#reset-cells = <1>;
#power-domain-cells = <1>;
- power-domains = <&rpmhpd SM8250_MMCX>;
+ power-domains = <&rpmhpd RPMHPD_MMCX>;
required-opps = <&rpmhpd_opp_low_svs>;
};
...
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-apq8064.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-apq8064.yaml
index 09cd7a786871..27df7e3e5bf3 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-apq8064.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-apq8064.yaml
@@ -8,7 +8,7 @@ title: Qualcomm Global Clock & Reset Controller on APQ8064/MSM8960
maintainers:
- Stephen Boyd <sboyd@kernel.org>
- - Taniya Das <tdas@codeaurora.org>
+ - Taniya Das <quic_tdas@quicinc.com>
description: |
Qualcomm global clock control module provides the clocks, resets and power
@@ -69,6 +69,8 @@ properties:
const: 1
deprecated: true
+ '#power-domain-cells': false
+
required:
- compatible
@@ -81,7 +83,6 @@ examples:
reg = <0x00900000 0x4000>;
#clock-cells = <1>;
#reset-cells = <1>;
- #power-domain-cells = <1>;
thermal-sensor {
compatible = "qcom,msm8960-tsens";
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-apq8084.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-apq8084.yaml
index d84608269080..0a0a26d9beab 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-apq8084.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-apq8084.yaml
@@ -51,6 +51,7 @@ properties:
required:
- compatible
+ - '#power-domain-cells'
unevaluatedProperties: false
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-ipq4019.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-ipq4019.yaml
index 6ebaef2288fa..c91039dc100e 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-ipq4019.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-ipq4019.yaml
@@ -8,14 +8,14 @@ title: Qualcomm Global Clock & Reset Controller on IPQ4019
maintainers:
- Stephen Boyd <sboyd@kernel.org>
- - Taniya Das <tdas@codeaurora.org>
+ - Taniya Das <quic_tdas@quicinc.com>
- Robert Marko <robert.markoo@sartura.hr>
description: |
Qualcomm global clock control module provides the clocks, resets and power
domains on IPQ4019.
- See also:: include/dt-bindings/clock/qcom,gcc-ipq4019.h
+ See also: include/dt-bindings/clock/qcom,gcc-ipq4019.h
allOf:
- $ref: qcom,gcc.yaml#
@@ -34,6 +34,8 @@ properties:
- const: xo
- const: sleep_clk
+ '#power-domain-cells': false
+
required:
- compatible
@@ -45,7 +47,6 @@ examples:
compatible = "qcom,gcc-ipq4019";
reg = <0x1800000 0x60000>;
#clock-cells = <1>;
- #power-domain-cells = <1>;
#reset-cells = <1>;
clocks = <&xo>, <&sleep_clk>;
clock-names = "xo", "sleep_clk";
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-ipq6018.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-ipq6018.yaml
new file mode 100644
index 000000000000..4d2614d4f368
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-ipq6018.yaml
@@ -0,0 +1,58 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,gcc-ipq6018.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Global Clock & Reset Controller on IPQ6018
+
+maintainers:
+ - Stephen Boyd <sboyd@kernel.org>
+ - Taniya Das <quic_tdas@quicinc.com>
+ - Robert Marko <robimarko@gmail.com>
+
+description: |
+ Qualcomm global clock control module provides the clocks, resets and power
+ domains on IPQ6018.
+
+ See also::
+ include/dt-bindings/clock/qcom,gcc-ipq6018.h
+ include/dt-bindings/reset/qcom,gcc-ipq6018.h
+
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+properties:
+ compatible:
+ const: qcom,gcc-ipq6018
+
+ clocks:
+ items:
+ - description: board XO clock
+ - description: sleep clock
+
+ clock-names:
+ items:
+ - const: xo
+ - const: sleep_clk
+
+ '#power-domain-cells': false
+
+required:
+ - compatible
+ - clocks
+ - clock-names
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ clock-controller@1800000 {
+ compatible = "qcom,gcc-ipq6018";
+ reg = <0x01800000 0x80000>;
+ clocks = <&xo>, <&sleep_clk>;
+ clock-names = "xo", "sleep_clk";
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-ipq8064.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-ipq8064.yaml
index 93f3084b97c1..a71557395c01 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-ipq8064.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-ipq8064.yaml
@@ -46,6 +46,8 @@ properties:
allOf:
- $ref: /schemas/thermal/qcom-tsens.yaml#
+ '#power-domain-cells': false
+
required:
- compatible
- clocks
@@ -65,7 +67,6 @@ examples:
clock-names = "pxo", "cxo", "pll4";
#clock-cells = <1>;
#reset-cells = <1>;
- #power-domain-cells = <1>;
tsens: thermal-sensor {
compatible = "qcom,ipq8064-tsens";
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-ipq8074.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-ipq8074.yaml
index deef398a9872..00d7df75b3d6 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-ipq8074.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-ipq8074.yaml
@@ -8,13 +8,13 @@ title: Qualcomm Global Clock & Reset Controller on IPQ8074
maintainers:
- Stephen Boyd <sboyd@kernel.org>
- - Taniya Das <tdas@codeaurora.org>
+ - Taniya Das <quic_tdas@quicinc.com>
description: |
Qualcomm global clock control module provides the clocks, resets and power
domains on IPQ8074.
- See also:: include/dt-bindings/clock/qcom,gcc-ipq8074.h
+ See also: include/dt-bindings/clock/qcom,gcc-ipq8074.h
allOf:
- $ref: qcom,gcc.yaml#
@@ -27,14 +27,19 @@ properties:
items:
- description: board XO clock
- description: sleep clock
+ - description: Gen3 QMP PCIe PHY PIPE clock
+ - description: Gen2 QMP PCIe PHY PIPE clock
clock-names:
items:
- const: xo
- const: sleep_clk
+ - const: pcie0_pipe
+ - const: pcie1_pipe
required:
- compatible
+ - '#power-domain-cells'
unevaluatedProperties: false
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-mdm9607.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-mdm9607.yaml
new file mode 100644
index 000000000000..d7da30b0e7ee
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-mdm9607.yaml
@@ -0,0 +1,43 @@
+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,gcc-mdm9607.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Global Clock & Reset Controller
+
+maintainers:
+ - Stephen Boyd <sboyd@kernel.org>
+ - Taniya Das <quic_tdas@quicinc.com>
+
+description: |
+ Qualcomm global clock control module provides the clocks, resets and power
+ domains.
+
+ See also::
+ include/dt-bindings/clock/qcom,gcc-mdm9607.h
+
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+properties:
+ compatible:
+ enum:
+ - qcom,gcc-mdm9607
+
+required:
+ - compatible
+ - '#power-domain-cells'
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ clock-controller@900000 {
+ compatible = "qcom,gcc-mdm9607";
+ reg = <0x900000 0x4000>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-mdm9615.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-mdm9615.yaml
new file mode 100644
index 000000000000..418dea31eb62
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-mdm9615.yaml
@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,gcc-mdm9615.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Global Clock & Reset Controller
+
+maintainers:
+ - Stephen Boyd <sboyd@kernel.org>
+ - Taniya Das <quic_tdas@quicinc.com>
+
+description: |
+ Qualcomm global clock control module provides the clocks, resets and power
+ domains.
+
+ See also::
+ include/dt-bindings/clock/qcom,gcc-mdm9615.h
+
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+properties:
+ compatible:
+ enum:
+ - qcom,gcc-mdm9615
+
+ clocks:
+ items:
+ - description: CXO clock
+ - description: PLL4 from LLC
+
+ '#power-domain-cells': false
+
+required:
+ - compatible
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ clock-controller@900000 {
+ compatible = "qcom,gcc-mdm9615";
+ reg = <0x900000 0x4000>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ clocks = <&cxo_board>,
+ <&lcc_pll4>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-msm8660.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8660.yaml
index c9e985548621..e03b6d0acdb6 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-msm8660.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8660.yaml
@@ -34,6 +34,8 @@ properties:
- const: pxo
- const: cxo
+ '#power-domain-cells': false
+
required:
- compatible
@@ -47,7 +49,6 @@ examples:
reg = <0x900000 0x4000>;
#clock-cells = <1>;
#reset-cells = <1>;
- #power-domain-cells = <1>;
clocks = <&pxo_board>, <&cxo_board>;
clock-names = "pxo", "cxo";
};
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-msm8909.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8909.yaml
index b91462587df5..ce1f5a60bd8c 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-msm8909.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8909.yaml
@@ -42,6 +42,7 @@ required:
- compatible
- clocks
- clock-names
+ - '#power-domain-cells'
allOf:
- $ref: qcom,gcc.yaml#
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-msm8916.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8916.yaml
index ad84c0f7680b..258b6b93deca 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-msm8916.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8916.yaml
@@ -48,6 +48,7 @@ properties:
required:
- compatible
+ - '#power-domain-cells'
allOf:
- $ref: qcom,gcc.yaml#
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-msm8953.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8953.yaml
new file mode 100644
index 000000000000..f2e37f439d28
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8953.yaml
@@ -0,0 +1,79 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,gcc-msm8953.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Global Clock & Reset Controller on MSM8953
+
+maintainers:
+ - Adam Skladowski <a_skl39@protonmail.com>
+ - Sireesh Kodali <sireeshkodali@protonmail.com>
+ - Barnabas Czeman <barnabas.czeman@mainlining.org>
+
+description: |
+ Qualcomm global clock control module provides the clocks, resets and power
+ domains on MSM8937 or MSM8953.
+
+ See also::
+ include/dt-bindings/clock/qcom,gcc-msm8917.h
+ include/dt-bindings/clock/qcom,gcc-msm8953.h
+
+properties:
+ compatible:
+ enum:
+ - qcom,gcc-msm8937
+ - qcom,gcc-msm8953
+
+ clocks:
+ items:
+ - description: Board XO source
+ - description: Sleep clock source
+ - description: Byte clock from DSI PHY0
+ - description: Pixel clock from DSI PHY0
+ - description: Byte clock from DSI PHY1
+ - description: Pixel clock from DSI PHY1
+
+ clock-names:
+ items:
+ - const: xo
+ - const: sleep
+ - const: dsi0pll
+ - const: dsi0pllbyte
+ - const: dsi1pll
+ - const: dsi1pllbyte
+
+required:
+ - compatible
+ - clocks
+ - clock-names
+ - '#power-domain-cells'
+
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,rpmcc.h>
+
+ clock-controller@1800000 {
+ compatible = "qcom,gcc-msm8953";
+ reg = <0x01800000 0x80000>;
+ clocks = <&rpmcc RPM_SMD_XO_CLK_SRC>,
+ <&sleep_clk>,
+ <&dsi0_phy 1>,
+ <&dsi0_phy 0>,
+ <&dsi1_phy 1>,
+ <&dsi1_phy 0>;
+ clock-names = "xo",
+ "sleep",
+ "dsi0pll",
+ "dsi0pllbyte",
+ "dsi1pll",
+ "dsi1pllbyte";
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-msm8974.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8974.yaml
index 1927aecc86bc..929fafc84c19 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-msm8974.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8974.yaml
@@ -41,6 +41,7 @@ properties:
required:
- compatible
+ - '#power-domain-cells'
unevaluatedProperties: false
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-msm8976.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8976.yaml
index d2186e25f55f..92195091a919 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-msm8976.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8976.yaml
@@ -8,13 +8,13 @@ title: Qualcomm Global Clock & Reset Controller on MSM8976
maintainers:
- Stephen Boyd <sboyd@kernel.org>
- - Taniya Das <tdas@codeaurora.org>
+ - Taniya Das <quic_tdas@quicinc.com>
description: |
Qualcomm global clock control module provides the clocks, resets and power
domains on MSM8976.
- See also:: include/dt-bindings/clock/qcom,gcc-msm8976.h
+ See also: include/dt-bindings/clock/qcom,gcc-msm8976.h
properties:
compatible:
@@ -49,6 +49,7 @@ required:
- clocks
- clock-names
- vdd_gfx-supply
+ - '#power-domain-cells'
allOf:
- $ref: qcom,gcc.yaml#
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-msm8994.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8994.yaml
index 8f0f20c1442a..93bcd61461e7 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-msm8994.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8994.yaml
@@ -7,13 +7,13 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Qualcomm Global Clock & Reset Controller on MSM8994
maintainers:
- - Konrad Dybcio <konrad.dybcio@somainline.org>
+ - Konrad Dybcio <konradybcio@kernel.org>
description: |
Qualcomm global clock control module provides the clocks, resets and power
domains on MSM8994 and MSM8992.
- See also:: include/dt-bindings/clock/qcom,gcc-msm8994.h
+ See also: include/dt-bindings/clock/qcom,gcc-msm8994.h
properties:
compatible:
@@ -35,6 +35,7 @@ required:
- compatible
- clocks
- clock-names
+ - '#power-domain-cells'
allOf:
- $ref: qcom,gcc.yaml#
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-msm8996.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8996.yaml
index f77036ace31b..64796f45f294 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-msm8996.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8996.yaml
@@ -8,13 +8,13 @@ title: Qualcomm Global Clock & Reset Controller on MSM8996
maintainers:
- Stephen Boyd <sboyd@kernel.org>
- - Taniya Das <tdas@codeaurora.org>
+ - Taniya Das <quic_tdas@quicinc.com>
description: |
Qualcomm global clock control module which provides the clocks, resets and
power domains on MSM8996.
- See also:: include/dt-bindings/clock/qcom,gcc-msm8996.h
+ See also: include/dt-bindings/clock/qcom,gcc-msm8996.h
properties:
compatible:
@@ -50,6 +50,7 @@ properties:
required:
- compatible
+ - '#power-domain-cells'
allOf:
- $ref: qcom,gcc.yaml#
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-msm8998.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8998.yaml
index 3c9729050d6f..d882f2b6620e 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-msm8998.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8998.yaml
@@ -8,13 +8,13 @@ title: Qualcomm Global Clock & Reset Controller on MSM8998
maintainers:
- Stephen Boyd <sboyd@kernel.org>
- - Taniya Das <tdas@codeaurora.org>
+ - Taniya Das <quic_tdas@quicinc.com>
description: |
Qualcomm global clock control module provides the clocks, resets and power
domains on MSM8998.
- See also:: include/dt-bindings/clock/qcom,gcc-msm8998.h
+ See also: include/dt-bindings/clock/qcom,gcc-msm8998.h
properties:
compatible:
@@ -38,6 +38,7 @@ required:
- compatible
- clocks
- clock-names
+ - '#power-domain-cells'
allOf:
- $ref: qcom,gcc.yaml#
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-other.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-other.yaml
deleted file mode 100644
index ae01e7749534..000000000000
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-other.yaml
+++ /dev/null
@@ -1,50 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only
-%YAML 1.2
----
-$id: http://devicetree.org/schemas/clock/qcom,gcc-other.yaml#
-$schema: http://devicetree.org/meta-schemas/core.yaml#
-
-title: Qualcomm Global Clock & Reset Controller
-
-maintainers:
- - Stephen Boyd <sboyd@kernel.org>
- - Taniya Das <tdas@codeaurora.org>
-
-description: |
- Qualcomm global clock control module provides the clocks, resets and power
- domains.
-
- See also::
- include/dt-bindings/clock/qcom,gcc-ipq6018.h
- include/dt-bindings/reset/qcom,gcc-ipq6018.h
- include/dt-bindings/clock/qcom,gcc-msm8953.h
- include/dt-bindings/clock/qcom,gcc-mdm9607.h
- include/dt-bindings/clock/qcom,gcc-mdm9615.h
- include/dt-bindings/reset/qcom,gcc-mdm9615.h
-
-allOf:
- - $ref: qcom,gcc.yaml#
-
-properties:
- compatible:
- enum:
- - qcom,gcc-ipq6018
- - qcom,gcc-mdm9607
- - qcom,gcc-msm8953
- - qcom,gcc-mdm9615
-
-required:
- - compatible
-
-unevaluatedProperties: false
-
-examples:
- - |
- clock-controller@900000 {
- compatible = "qcom,gcc-mdm9607";
- reg = <0x900000 0x4000>;
- #clock-cells = <1>;
- #reset-cells = <1>;
- #power-domain-cells = <1>;
- };
-...
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-qcm2290.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-qcm2290.yaml
index c9bec4656f6e..b9194fa11e47 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-qcm2290.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-qcm2290.yaml
@@ -13,7 +13,7 @@ description: |
Qualcomm global clock control module provides the clocks, resets and power
domains on QCM2290.
- See also:: include/dt-bindings/clock/qcom,gcc-qcm2290.h
+ See also: include/dt-bindings/clock/qcom,gcc-qcm2290.h
properties:
compatible:
@@ -33,6 +33,7 @@ required:
- compatible
- clocks
- clock-names
+ - '#power-domain-cells'
allOf:
- $ref: qcom,gcc.yaml#
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-qcs404.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-qcs404.yaml
index b2256f81b265..6b35a3c080a2 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-qcs404.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-qcs404.yaml
@@ -8,13 +8,13 @@ title: Qualcomm Global Clock & Reset Controller on QCS404
maintainers:
- Stephen Boyd <sboyd@kernel.org>
- - Taniya Das <tdas@codeaurora.org>
+ - Taniya Das <quic_tdas@quicinc.com>
description: |
Qualcomm global clock control module provides the clocks, resets and power
domains on QCS404.
- See also:: include/dt-bindings/clock/qcom,gcc-qcs404.h
+ See also: include/dt-bindings/clock/qcom,gcc-qcs404.h
properties:
compatible:
@@ -40,6 +40,7 @@ properties:
required:
- compatible
+ - '#power-domain-cells'
allOf:
- $ref: qcom,gcc.yaml#
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-sc7180.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-sc7180.yaml
index 06dce0c6b7d0..e30d1df3eeb5 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-sc7180.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-sc7180.yaml
@@ -8,13 +8,13 @@ title: Qualcomm Global Clock & Reset Controller on SC7180
maintainers:
- Stephen Boyd <sboyd@kernel.org>
- - Taniya Das <tdas@codeaurora.org>
+ - Taniya Das <quic_tdas@quicinc.com>
description: |
Qualcomm global clock control module provides the clocks, resets and power
domains on SC7180.
- See also:: include/dt-bindings/clock/qcom,gcc-sc7180.h
+ See also: include/dt-bindings/clock/qcom,gcc-sc7180.h
properties:
compatible:
@@ -32,10 +32,15 @@ properties:
- const: bi_tcxo_ao
- const: sleep_clk
+ power-domains:
+ items:
+ - description: CX domain
+
required:
- compatible
- clocks
- clock-names
+ - '#power-domain-cells'
allOf:
- $ref: qcom,gcc.yaml#
@@ -45,6 +50,8 @@ unevaluatedProperties: false
examples:
- |
#include <dt-bindings/clock/qcom,rpmh.h>
+ #include <dt-bindings/power/qcom-rpmpd.h>
+
clock-controller@100000 {
compatible = "qcom,gcc-sc7180";
reg = <0x00100000 0x1f0000>;
@@ -52,6 +59,7 @@ examples:
<&rpmhcc RPMH_CXO_CLK_A>,
<&sleep_clk>;
clock-names = "bi_tcxo", "bi_tcxo_ao", "sleep_clk";
+ power-domains = <&rpmhpd SC7180_CX>;
#clock-cells = <1>;
#reset-cells = <1>;
#power-domain-cells = <1>;
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-sc7280.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-sc7280.yaml
index 947b47168cec..5ddaf27bb1f4 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-sc7280.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-sc7280.yaml
@@ -7,13 +7,13 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Qualcomm Global Clock & Reset Controller on SC7280
maintainers:
- - Taniya Das <tdas@codeaurora.org>
+ - Taniya Das <quic_tdas@quicinc.com>
description: |
Qualcomm global clock control module provides the clocks, resets and power
domains on SC7280.
- See also:: include/dt-bindings/clock/qcom,gcc-sc7280.h
+ See also: include/dt-bindings/clock/qcom,gcc-sc7280.h
properties:
compatible:
@@ -43,10 +43,15 @@ properties:
- const: ufs_phy_tx_symbol_0_clk
- const: usb3_phy_wrapper_gcc_usb30_pipe_clk
+ power-domains:
+ items:
+ - description: CX domain
+
required:
- compatible
- clocks
- clock-names
+ - '#power-domain-cells'
allOf:
- $ref: qcom,gcc.yaml#
@@ -56,6 +61,8 @@ unevaluatedProperties: false
examples:
- |
#include <dt-bindings/clock/qcom,rpmh.h>
+ #include <dt-bindings/power/qcom-rpmpd.h>
+
clock-controller@100000 {
compatible = "qcom,gcc-sc7280";
reg = <0x00100000 0x1f0000>;
@@ -71,6 +78,7 @@ examples:
"pcie_1_pipe_clk", "ufs_phy_rx_symbol_0_clk",
"ufs_phy_rx_symbol_1_clk", "ufs_phy_tx_symbol_0_clk",
"usb3_phy_wrapper_gcc_usb30_pipe_clk";
+ power-domains = <&rpmhpd SC7280_CX>;
#clock-cells = <1>;
#reset-cells = <1>;
#power-domain-cells = <1>;
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-sc8180x.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-sc8180x.yaml
index 6c4846b34e4b..82c2ef39934d 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-sc8180x.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-sc8180x.yaml
@@ -13,7 +13,7 @@ description: |
Qualcomm global clock control module provides the clocks, resets and power
domains on SC8180x.
- See also:: include/dt-bindings/clock/qcom,gcc-sc8180x.h
+ See also: include/dt-bindings/clock/qcom,gcc-sc8180x.h
properties:
compatible:
@@ -31,10 +31,16 @@ properties:
- const: bi_tcxo_ao
- const: sleep_clk
+ power-domains:
+ items:
+ - description: CX domain
+
required:
- compatible
- clocks
- clock-names
+ - power-domains
+ - '#power-domain-cells'
allOf:
- $ref: qcom,gcc.yaml#
@@ -44,6 +50,7 @@ unevaluatedProperties: false
examples:
- |
#include <dt-bindings/clock/qcom,rpmh.h>
+ #include <dt-bindings/power/qcom-rpmpd.h>
clock-controller@100000 {
compatible = "qcom,gcc-sc8180x";
reg = <0x00100000 0x1f0000>;
@@ -51,6 +58,7 @@ examples:
<&rpmhcc RPMH_CXO_CLK_A>,
<&sleep_clk>;
clock-names = "bi_tcxo", "bi_tcxo_ao", "sleep_clk";
+ power-domains = <&rpmhpd SC8180X_CX>;
#clock-cells = <1>;
#reset-cells = <1>;
#power-domain-cells = <1>;
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-sc8280xp.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-sc8280xp.yaml
index 5681e535fede..c1eeccef66b4 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-sc8280xp.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-sc8280xp.yaml
@@ -13,7 +13,7 @@ description: |
Qualcomm global clock control module provides the clocks, resets and
power domains on SC8280xp.
- See also:: include/dt-bindings/clock/qcom,gcc-sc8280xp.h
+ See also: include/dt-bindings/clock/qcom,gcc-sc8280xp.h
properties:
compatible:
@@ -65,6 +65,7 @@ properties:
required:
- compatible
- clocks
+ - '#power-domain-cells'
allOf:
- $ref: qcom,gcc.yaml#
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-sdm660.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-sdm660.yaml
index 52e7412aace5..724ce0491118 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-sdm660.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-sdm660.yaml
@@ -40,6 +40,7 @@ properties:
required:
- compatible
+ - '#power-domain-cells'
unevaluatedProperties: false
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-sdm845.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-sdm845.yaml
index 68e1b7822fe0..a7523a414341 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-sdm845.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-sdm845.yaml
@@ -8,13 +8,13 @@ title: Qualcomm Global Clock & Reset Controller on SDM670 and SDM845
maintainers:
- Stephen Boyd <sboyd@kernel.org>
- - Taniya Das <tdas@codeaurora.org>
+ - Taniya Das <quic_tdas@quicinc.com>
description: |
Qualcomm global clock control module provides the clocks, resets and power
domains on SDM670 and SDM845
- See also:: include/dt-bindings/clock/qcom,gcc-sdm845.h
+ See also: include/dt-bindings/clock/qcom,gcc-sdm845.h
properties:
compatible:
@@ -35,6 +35,7 @@ properties:
required:
- compatible
+ - '#power-domain-cells'
allOf:
- $ref: qcom,gcc.yaml#
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-sdx55.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-sdx55.yaml
index 428e954d7638..320e4f5b2b18 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-sdx55.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-sdx55.yaml
@@ -14,7 +14,7 @@ description: |
Qualcomm global clock control module provides the clocks, resets and
power domains on SDX55
- See also:: include/dt-bindings/clock/qcom,gcc-sdx55.h
+ See also: include/dt-bindings/clock/qcom,gcc-sdx55.h
properties:
compatible:
@@ -34,6 +34,7 @@ required:
- compatible
- clocks
- clock-names
+ - '#power-domain-cells'
allOf:
- $ref: qcom,gcc.yaml#
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-sdx65.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-sdx65.yaml
index 523e18d7f150..9242e6e19139 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-sdx65.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-sdx65.yaml
@@ -13,7 +13,7 @@ description: |
Qualcomm global clock control module provides the clocks, resets and power
domains on SDX65
- See also:: include/dt-bindings/clock/qcom,gcc-sdx65.h
+ See also: include/dt-bindings/clock/qcom,gcc-sdx65.h
properties:
compatible:
@@ -39,6 +39,7 @@ required:
- compatible
- clocks
- clock-names
+ - '#power-domain-cells'
allOf:
- $ref: qcom,gcc.yaml#
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-sm6115.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-sm6115.yaml
index a5ad0a3da397..c926630907c5 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-sm6115.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-sm6115.yaml
@@ -13,7 +13,7 @@ description: |
Qualcomm global clock control module provides the clocks, resets and power
domains on SM4250/6115.
- See also:: include/dt-bindings/clock/qcom,gcc-sm6115.h
+ See also: include/dt-bindings/clock/qcom,gcc-sm6115.h
properties:
compatible:
@@ -33,6 +33,7 @@ required:
- compatible
- clocks
- clock-names
+ - '#power-domain-cells'
allOf:
- $ref: qcom,gcc.yaml#
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-sm6125.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-sm6125.yaml
index 8e37623788bd..5bd422e94a38 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-sm6125.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-sm6125.yaml
@@ -7,13 +7,13 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Qualcomm Global Clock & Reset Controller on SM6125
maintainers:
- - Konrad Dybcio <konrad.dybcio@somainline.org>
+ - Konrad Dybcio <konradybcio@kernel.org>
description: |
Qualcomm global clock control module provides the clocks, resets and power
domains on SM6125.
- See also:: include/dt-bindings/clock/qcom,gcc-sm6125.h
+ See also: include/dt-bindings/clock/qcom,gcc-sm6125.h
properties:
compatible:
@@ -33,6 +33,7 @@ required:
- compatible
- clocks
- clock-names
+ - '#power-domain-cells'
allOf:
- $ref: qcom,gcc.yaml#
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-sm6350.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-sm6350.yaml
index d1b26ab48eaf..819e855eaf9a 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-sm6350.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-sm6350.yaml
@@ -7,13 +7,13 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Qualcomm Global Clock & Reset Controller on SM6350
maintainers:
- - Konrad Dybcio <konrad.dybcio@somainline.org>
+ - Konrad Dybcio <konradybcio@kernel.org>
description: |
Qualcomm global clock control module provides the clocks, resets and power
domains on SM6350.
- See also:: include/dt-bindings/clock/qcom,gcc-sm6350.h
+ See also: include/dt-bindings/clock/qcom,gcc-sm6350.h
properties:
compatible:
@@ -35,6 +35,7 @@ required:
- compatible
- clocks
- clock-names
+ - '#power-domain-cells'
allOf:
- $ref: qcom,gcc.yaml#
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-sm8150.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-sm8150.yaml
index 3ea0ff37a4cb..5f3f69fe9ddb 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-sm8150.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-sm8150.yaml
@@ -8,13 +8,13 @@ title: Qualcomm Global Clock & Reset Controller on SM8150
maintainers:
- Stephen Boyd <sboyd@kernel.org>
- - Taniya Das <tdas@codeaurora.org>
+ - Taniya Das <quic_tdas@quicinc.com>
description: |
Qualcomm global clock control module provides the clocks, resets and power
domains on SM8150.
- See also:: include/dt-bindings/clock/qcom,gcc-sm8150.h
+ See also: include/dt-bindings/clock/qcom,gcc-sm8150.h
properties:
compatible:
@@ -34,6 +34,7 @@ required:
- compatible
- clocks
- clock-names
+ - '#power-domain-cells'
allOf:
- $ref: qcom,gcc.yaml#
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-sm8250.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-sm8250.yaml
index b752542ee20c..f4cd5a509c60 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-sm8250.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-sm8250.yaml
@@ -8,13 +8,13 @@ title: Qualcomm Global Clock & Reset Controller on SM8250
maintainers:
- Stephen Boyd <sboyd@kernel.org>
- - Taniya Das <tdas@codeaurora.org>
+ - Taniya Das <quic_tdas@quicinc.com>
description: |
Qualcomm global clock control module provides the clocks, resets and power
domains on SM8250.
- See also:: include/dt-bindings/clock/qcom,gcc-sm8250.h
+ See also: include/dt-bindings/clock/qcom,gcc-sm8250.h
properties:
compatible:
@@ -23,17 +23,20 @@ properties:
clocks:
items:
- description: Board XO source
+ - description: Board active XO source
- description: Sleep clock source
clock-names:
items:
- const: bi_tcxo
+ - const: bi_tcxo_ao
- const: sleep_clk
required:
- compatible
- clocks
- clock-names
+ - '#power-domain-cells'
allOf:
- $ref: qcom,gcc.yaml#
@@ -47,8 +50,9 @@ examples:
compatible = "qcom,gcc-sm8250";
reg = <0x00100000 0x1f0000>;
clocks = <&rpmhcc RPMH_CXO_CLK>,
+ <&rpmhcc RPMH_CXO_CLK_A>,
<&sleep_clk>;
- clock-names = "bi_tcxo", "sleep_clk";
+ clock-names = "bi_tcxo", "bi_tcxo_ao", "sleep_clk";
#clock-cells = <1>;
#reset-cells = <1>;
#power-domain-cells = <1>;
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-sm8350.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-sm8350.yaml
index b4fdde71ef18..97ffae3b5522 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-sm8350.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-sm8350.yaml
@@ -13,7 +13,7 @@ description: |
Qualcomm global clock control module provides the clocks, resets and power
domains on SM8350.
- See also:: include/dt-bindings/clock/qcom,gcc-sm8350.h
+ See also: include/dt-bindings/clock/qcom,gcc-sm8350.h
properties:
compatible:
@@ -55,6 +55,7 @@ required:
- compatible
- clocks
- clock-names
+ - '#power-domain-cells'
allOf:
- $ref: qcom,gcc.yaml#
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-sm8450.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-sm8450.yaml
index 9a31981fbeb2..3169ac05e1d8 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-sm8450.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-sm8450.yaml
@@ -13,11 +13,13 @@ description: |
Qualcomm global clock control module provides the clocks, resets and power
domains on SM8450
- See also:: include/dt-bindings/clock/qcom,gcc-sm8450.h
+ See also: include/dt-bindings/clock/qcom,gcc-sm8450.h
properties:
compatible:
- const: qcom,gcc-sm8450
+ enum:
+ - qcom,gcc-sm8450
+ - qcom,sm8475-gcc
clocks:
items:
@@ -25,7 +27,7 @@ properties:
- description: Sleep clock source
- description: PCIE 0 Pipe clock source (Optional clock)
- description: PCIE 1 Pipe clock source (Optional clock)
- - description: PCIE 1 Phy Auxillary clock source (Optional clock)
+ - description: PCIE 1 Phy Auxiliary clock source (Optional clock)
- description: UFS Phy Rx symbol 0 clock source (Optional clock)
- description: UFS Phy Rx symbol 1 clock source (Optional clock)
- description: UFS Phy Tx symbol 0 clock source (Optional clock)
@@ -49,6 +51,7 @@ required:
- compatible
- clocks
- clock-names
+ - '#power-domain-cells'
allOf:
- $ref: qcom,gcc.yaml#
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc.yaml
index 7129fbcf2b6c..513d6fd89249 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc.yaml
@@ -8,7 +8,7 @@ title: Qualcomm Global Clock & Reset Controller Common Properties
maintainers:
- Stephen Boyd <sboyd@kernel.org>
- - Taniya Das <tdas@codeaurora.org>
+ - Taniya Das <quic_tdas@quicinc.com>
description: |
Common bindings for Qualcomm global clock control module providing the
@@ -35,7 +35,6 @@ required:
- reg
- '#clock-cells'
- '#reset-cells'
- - '#power-domain-cells'
additionalProperties: true
diff --git a/Documentation/devicetree/bindings/clock/qcom,glymur-dispcc.yaml b/Documentation/devicetree/bindings/clock/qcom,glymur-dispcc.yaml
new file mode 100644
index 000000000000..45f027c70e03
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,glymur-dispcc.yaml
@@ -0,0 +1,98 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,glymur-dispcc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Display Clock & Reset Controller on GLYMUR
+
+maintainers:
+ - Taniya Das <taniya.das@oss.qualcomm.com>
+
+description: |
+ Qualcomm display clock control module which supports the clocks, resets and
+ power domains for the MDSS instances on GLYMUR SoC.
+
+ See also:
+ include/dt-bindings/clock/qcom,dispcc-glymur.h
+
+properties:
+ compatible:
+ enum:
+ - qcom,glymur-dispcc
+
+ clocks:
+ items:
+ - description: Board CXO clock
+ - description: Board sleep clock
+ - description: DisplayPort 0 link clock
+ - description: DisplayPort 0 VCO div clock
+ - description: DisplayPort 1 link clock
+ - description: DisplayPort 1 VCO div clock
+ - description: DisplayPort 2 link clock
+ - description: DisplayPort 2 VCO div clock
+ - description: DisplayPort 3 link clock
+ - description: DisplayPort 3 VCO div clock
+ - description: DSI 0 PLL byte clock
+ - description: DSI 0 PLL DSI clock
+ - description: DSI 1 PLL byte clock
+ - description: DSI 1 PLL DSI clock
+ - description: Standalone PHY 0 PLL link clock
+ - description: Standalone PHY 0 VCO div clock
+ - description: Standalone PHY 1 PLL link clock
+ - description: Standalone PHY 1 VCO div clock
+
+ power-domains:
+ description:
+ A phandle and PM domain specifier for the MMCX power domain.
+ maxItems: 1
+
+ required-opps:
+ description:
+ A phandle to an OPP node describing required MMCX performance point.
+ maxItems: 1
+
+required:
+ - compatible
+ - clocks
+ - power-domains
+ - '#power-domain-cells'
+
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,rpmh.h>
+ #include <dt-bindings/power/qcom,rpmhpd.h>
+
+ clock-controller@af00000 {
+ compatible = "qcom,glymur-dispcc";
+ reg = <0x0af00000 0x20000>;
+ clocks = <&rpmhcc RPMH_CXO_CLK>,
+ <&sleep_clk>,
+ <&mdss_dp_phy0 0>,
+ <&mdss_dp_phy0 1>,
+ <&mdss_dp_phy1 0>,
+ <&mdss_dp_phy1 1>,
+ <&mdss_dp_phy2 0>,
+ <&mdss_dp_phy2 1>,
+ <&mdss_dp_phy3 0>,
+ <&mdss_dp_phy3 1>,
+ <&mdss_dsi0_phy 0>,
+ <&mdss_dsi0_phy 1>,
+ <&mdss_dsi1_phy 0>,
+ <&mdss_dsi1_phy 1>,
+ <&mdss_phy0_link 0>,
+ <&mdss_phy0_vco_div 0>,
+ <&mdss_phy1_link 1>,
+ <&mdss_phy1_vco_div 1>;
+ power-domains = <&rpmhpd RPMHPD_MMCX>;
+ required-opps = <&rpmhpd_opp_low_svs>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,glymur-gcc.yaml b/Documentation/devicetree/bindings/clock/qcom,glymur-gcc.yaml
new file mode 100644
index 000000000000..b05b0e6c4483
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,glymur-gcc.yaml
@@ -0,0 +1,121 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,glymur-gcc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Global Clock & Reset Controller on Glymur SoC
+
+maintainers:
+ - Taniya Das <taniya.das@oss.qualcomm.com>
+
+description: |
+ Qualcomm global clock control module provides the clocks, resets and power
+ domains on Glymur SoC.
+
+ See also: include/dt-bindings/clock/qcom,glymur-gcc.h
+
+properties:
+ compatible:
+ const: qcom,glymur-gcc
+
+ clocks:
+ items:
+ - description: Board XO source
+ - description: Board XO_A source
+ - description: Sleep clock source
+ - description: USB 0 Phy DP0 GMUX clock source
+ - description: USB 0 Phy DP1 GMUX clock source
+ - description: USB 0 Phy PCIE PIPEGMUX clock source
+ - description: USB 0 Phy PIPEGMUX clock source
+ - description: USB 0 Phy SYS PCIE PIPEGMUX clock source
+ - description: USB 1 Phy DP0 GMUX 2 clock source
+ - description: USB 1 Phy DP1 GMUX 2 clock source
+ - description: USB 1 Phy PCIE PIPEGMUX clock source
+ - description: USB 1 Phy PIPEGMUX clock source
+ - description: USB 1 Phy SYS PCIE PIPEGMUX clock source
+ - description: USB 2 Phy DP0 GMUX 2 clock source
+ - description: USB 2 Phy DP1 GMUX 2 clock source
+ - description: USB 2 Phy PCIE PIPEGMUX clock source
+ - description: USB 2 Phy PIPEGMUX clock source
+ - description: USB 2 Phy SYS PCIE PIPEGMUX clock source
+ - description: PCIe 3a pipe clock
+ - description: PCIe 3b pipe clock
+ - description: PCIe 4 pipe clock
+ - description: PCIe 5 pipe clock
+ - description: PCIe 6 pipe clock
+ - description: QUSB4 0 PHY RX 0 clock source
+ - description: QUSB4 0 PHY RX 1 clock source
+ - description: QUSB4 1 PHY RX 0 clock source
+ - description: QUSB4 1 PHY RX 1 clock source
+ - description: QUSB4 2 PHY RX 0 clock source
+ - description: QUSB4 2 PHY RX 1 clock source
+ - description: UFS PHY RX Symbol 0 clock source
+ - description: UFS PHY RX Symbol 1 clock source
+ - description: UFS PHY TX Symbol 0 clock source
+ - description: USB3 PHY 0 pipe clock source
+ - description: USB3 PHY 1 pipe clock source
+ - description: USB3 PHY 2 pipe clock source
+ - description: USB3 UNI PHY pipe 0 clock source
+ - description: USB3 UNI PHY pipe 1 clock source
+ - description: USB4 PHY 0 pcie pipe clock source
+ - description: USB4 PHY 0 Max pipe clock source
+ - description: USB4 PHY 1 pcie pipe clock source
+ - description: USB4 PHY 1 Max pipe clock source
+ - description: USB4 PHY 2 pcie pipe clock source
+ - description: USB4 PHY 2 Max pipe clock source
+
+required:
+ - compatible
+ - clocks
+ - '#power-domain-cells'
+
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,rpmh.h>
+ clock-controller@100000 {
+ compatible = "qcom,glymur-gcc";
+ reg = <0x100000 0x1f9000>;
+ clocks = <&rpmhcc RPMH_CXO_CLK>,
+ <&rpmhcc RPMH_CXO_CLK_A>,
+ <&sleep_clk>,
+ <&usb_0_phy_dp0_gmux>,
+ <&usb_0_phy_dp1_gmux>,
+ <&usb_0_phy_pcie_pipegmux>,
+ <&usb_0_phy_pipegmux>,
+ <&usb_0_phy_sys_pcie_pipegmux>,
+ <&usb_1_phy_dp0_gmux_2>,
+ <&usb_1_phy_dp1_gmux_2>,
+ <&usb_1_phy_pcie_pipegmux>,
+ <&usb_1_phy_pipegmux>,
+ <&usb_1_phy_sys_pcie_pipegmux>,
+ <&usb_2_phy_dp0_gmux 2>,
+ <&usb_2_phy_dp1_gmux 2>,
+ <&usb_2_phy_pcie_pipegmux>,
+ <&usb_2_phy_pipegmux>,
+ <&usb_2_phy_sys_pcie_pipegmux>,
+ <&pcie_3a_pipe>, <&pcie_3b_pipe>,
+ <&pcie_4_pipe>, <&pcie_5_pipe>,
+ <&pcie_6_pipe>,
+ <&qusb4_0_phy_rx_0>, <&qusb4_0_phy_rx_1>,
+ <&qusb4_1_phy_rx_0>, <&qusb4_1_phy_rx_1>,
+ <&qusb4_2_phy_rx_0>, <&qusb4_2_phy_rx_1>,
+ <&ufs_phy_rx_symbol_0>, <&ufs_phy_rx_symbol_1>,
+ <&ufs_phy_tx_symbol_0>,
+ <&usb3_phy_0_pipe>, <&usb3_phy_1_pipe>,
+ <&usb3_phy_2_pipe>,
+ <&usb3_uni_phy_pipe_0>, <&usb3_uni_phy_pipe_1>,
+ <&usb4_phy_0_pcie_pipe>, <&usb4_phy_0_max_pipe>,
+ <&usb4_phy_1_pcie_pipe>, <&usb4_phy_1_max_pipe>,
+ <&usb4_phy_2_pcie_pipe>, <&usb4_phy_2_max_pipe>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,gpucc-sdm660.yaml b/Documentation/devicetree/bindings/clock/qcom,gpucc-sdm660.yaml
index 0518ea963cdd..79bb90dbe4c1 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gpucc-sdm660.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gpucc-sdm660.yaml
@@ -33,28 +33,16 @@ properties:
- const: gcc_gpu_gpll0_clk
- const: gcc_gpu_gpll0_div_clk
- '#clock-cells':
- const: 1
-
- '#reset-cells':
- const: 1
-
- '#power-domain-cells':
- const: 1
-
- reg:
- maxItems: 1
-
required:
- compatible
- - reg
- clocks
- clock-names
- - '#clock-cells'
- - '#reset-cells'
- '#power-domain-cells'
-additionalProperties: false
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/clock/qcom,gpucc.yaml b/Documentation/devicetree/bindings/clock/qcom,gpucc.yaml
index 1e3dc9deded9..4cdff6161bf0 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gpucc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gpucc.yaml
@@ -7,7 +7,8 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Qualcomm Graphics Clock & Reset Controller
maintainers:
- - Taniya Das <tdas@codeaurora.org>
+ - Taniya Das <quic_tdas@quicinc.com>
+ - Imran Shaik <quic_imrashai@quicinc.com>
description: |
Qualcomm graphics clock control module provides the clocks, resets and power
@@ -23,10 +24,12 @@ description: |
include/dt-bindings/clock/qcom,gpucc-sm8150.h
include/dt-bindings/clock/qcom,gpucc-sm8250.h
include/dt-bindings/clock/qcom,gpucc-sm8350.h
+ include/dt-bindings/clock/qcom,qcs8300-gpucc.h
properties:
compatible:
enum:
+ - qcom,qcs8300-gpucc
- qcom,sdm845-gpucc
- qcom,sa8775p-gpucc
- qcom,sc7180-gpucc
@@ -50,28 +53,28 @@ properties:
- const: gcc_gpu_gpll0_clk_src
- const: gcc_gpu_gpll0_div_clk_src
- '#clock-cells':
- const: 1
-
- '#reset-cells':
- const: 1
-
- '#power-domain-cells':
- const: 1
-
- reg:
+ power-domains:
maxItems: 1
+ vdd-gfx-supply:
+ description: Regulator supply for the VDD_GFX pads
+
required:
- compatible
- - reg
- clocks
- clock-names
- - '#clock-cells'
- - '#reset-cells'
- '#power-domain-cells'
-additionalProperties: false
+# Require that power-domains and vdd-gfx-supply are not both present
+not:
+ required:
+ - power-domains
+ - vdd-gfx-supply
+
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/clock/qcom,hfpll.txt b/Documentation/devicetree/bindings/clock/qcom,hfpll.txt
deleted file mode 100644
index ec02a024424c..000000000000
--- a/Documentation/devicetree/bindings/clock/qcom,hfpll.txt
+++ /dev/null
@@ -1,60 +0,0 @@
-High-Frequency PLL (HFPLL)
-
-PROPERTIES
-
-- compatible:
- Usage: required
- Value type: <string>:
- shall contain only one of the following. The generic
- compatible "qcom,hfpll" should be also included.
-
- "qcom,hfpll-ipq8064", "qcom,hfpll"
- "qcom,hfpll-apq8064", "qcom,hfpll"
- "qcom,hfpll-msm8974", "qcom,hfpll"
- "qcom,hfpll-msm8960", "qcom,hfpll"
-
-- reg:
- Usage: required
- Value type: <prop-encoded-array>
- Definition: address and size of HPLL registers. An optional second
- element specifies the address and size of the alias
- register region.
-
-- clocks:
- Usage: required
- Value type: <prop-encoded-array>
- Definition: reference to the xo clock.
-
-- clock-names:
- Usage: required
- Value type: <stringlist>
- Definition: must be "xo".
-
-- clock-output-names:
- Usage: required
- Value type: <string>
- Definition: Name of the PLL. Typically hfpllX where X is a CPU number
- starting at 0. Otherwise hfpll_Y where Y is more specific
- such as "l2".
-
-Example:
-
-1) An HFPLL for the L2 cache.
-
- clock-controller@f9016000 {
- compatible = "qcom,hfpll-ipq8064", "qcom,hfpll";
- reg = <0xf9016000 0x30>;
- clocks = <&xo_board>;
- clock-names = "xo";
- clock-output-names = "hfpll_l2";
- };
-
-2) An HFPLL for CPU0. This HFPLL has the alias register region.
-
- clock-controller@f908a000 {
- compatible = "qcom,hfpll-ipq8064", "qcom,hfpll";
- reg = <0xf908a000 0x30>, <0xf900a000 0x30>;
- clocks = <&xo_board>;
- clock-names = "xo";
- clock-output-names = "hfpll0";
- };
diff --git a/Documentation/devicetree/bindings/clock/qcom,hfpll.yaml b/Documentation/devicetree/bindings/clock/qcom,hfpll.yaml
new file mode 100644
index 000000000000..8cb1c164f760
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,hfpll.yaml
@@ -0,0 +1,69 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,hfpll.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm High-Frequency PLL
+
+maintainers:
+ - Bjorn Andersson <andersson@kernel.org>
+
+description:
+ The HFPLL is used as CPU PLL on various Qualcomm SoCs.
+
+properties:
+ compatible:
+ oneOf:
+ - enum:
+ - qcom,msm8974-hfpll
+ - qcom,msm8976-hfpll-a53
+ - qcom,msm8976-hfpll-a72
+ - qcom,msm8976-hfpll-cci
+ - qcom,qcs404-hfpll
+ - const: qcom,hfpll
+ deprecated: true
+
+ reg:
+ items:
+ - description: HFPLL registers
+ - description: Alias register region
+ minItems: 1
+
+ '#clock-cells':
+ const: 0
+
+ clocks:
+ items:
+ - description: board XO clock
+
+ clock-names:
+ items:
+ - const: xo
+
+ clock-output-names:
+ description:
+ Name of the PLL. Typically hfpllX where X is a CPU number starting at 0.
+ Otherwise hfpll_Y where Y is more specific such as "l2".
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - '#clock-cells'
+ - clocks
+ - clock-names
+ - clock-output-names
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-controller@f908a000 {
+ compatible = "qcom,msm8974-hfpll";
+ reg = <0xf908a000 0x30>, <0xf900a000 0x30>;
+ #clock-cells = <0>;
+ clock-output-names = "hfpll0";
+ clocks = <&xo_board>;
+ clock-names = "xo";
+ };
diff --git a/Documentation/devicetree/bindings/clock/qcom,ipq5018-gcc.yaml b/Documentation/devicetree/bindings/clock/qcom,ipq5018-gcc.yaml
new file mode 100644
index 000000000000..489d0fc5607c
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,ipq5018-gcc.yaml
@@ -0,0 +1,64 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,ipq5018-gcc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Global Clock & Reset Controller on IPQ5018
+
+maintainers:
+ - Sricharan Ramabadhran <quic_srichara@quicinc.com>
+
+description: |
+ Qualcomm global clock control module provides the clocks, resets and power
+ domains on IPQ5018
+
+ See also::
+ include/dt-bindings/clock/qcom,ipq5018-gcc.h
+ include/dt-bindings/reset/qcom,ipq5018-gcc.h
+
+properties:
+ compatible:
+ const: qcom,gcc-ipq5018
+
+ clocks:
+ items:
+ - description: Board XO source
+ - description: Sleep clock source
+ - description: PCIE20 PHY0 pipe clock source
+ - description: PCIE20 PHY1 pipe clock source
+ - description: USB3 PHY pipe clock source
+ - description: GEPHY RX clock source
+ - description: GEPHY TX clock source
+ - description: UNIPHY RX clock source
+ - description: UNIPHY TX clk source
+
+ '#power-domain-cells': false
+
+required:
+ - compatible
+ - clocks
+
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ clock-controller@1800000 {
+ compatible = "qcom,gcc-ipq5018";
+ reg = <0x01800000 0x80000>;
+ clocks = <&xo_board_clk>,
+ <&sleep_clk>,
+ <&pcie20_phy0_pipe_clk>,
+ <&pcie20_phy1_pipe_clk>,
+ <&usb3_phy0_pipe_clk>,
+ <&gephy_rx_clk>,
+ <&gephy_tx_clk>,
+ <&uniphy_rx_clk>,
+ <&uniphy_tx_clk>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,ipq5332-gcc.yaml b/Documentation/devicetree/bindings/clock/qcom,ipq5332-gcc.yaml
index 718fe0625424..1230183fc0a9 100644
--- a/Documentation/devicetree/bindings/clock/qcom,ipq5332-gcc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,ipq5332-gcc.yaml
@@ -4,36 +4,67 @@
$id: http://devicetree.org/schemas/clock/qcom,ipq5332-gcc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Qualcomm Global Clock & Reset Controller on IPQ5332
+title: Qualcomm Global Clock & Reset Controller on IPQ5332 and IPQ5424
maintainers:
- Bjorn Andersson <andersson@kernel.org>
description: |
Qualcomm global clock control module provides the clocks, resets and power
- domains on IPQ5332.
+ domains on IPQ5332 and IPQ5424.
- See also:: include/dt-bindings/clock/qcom,gcc-ipq5332.h
-
-allOf:
- - $ref: qcom,gcc.yaml#
+ See also:
+ include/dt-bindings/clock/qcom,gcc-ipq5332.h
+ include/dt-bindings/clock/qcom,gcc-ipq5424.h
properties:
compatible:
- const: qcom,ipq5332-gcc
+ enum:
+ - qcom,ipq5332-gcc
+ - qcom,ipq5424-gcc
clocks:
+ minItems: 5
items:
- description: Board XO clock source
- description: Sleep clock source
- description: PCIE 2lane PHY pipe clock source
- description: PCIE 2lane x1 PHY pipe clock source (For second lane)
- description: USB PCIE wrapper pipe clock source
+ - description: PCIE 2-lane PHY2 pipe clock source
+ - description: PCIE 2-lane PHY3 pipe clock source
+
+ '#power-domain-cells': false
+ '#interconnect-cells':
+ const: 1
required:
- compatible
- clocks
+allOf:
+ - $ref: qcom,gcc.yaml#
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: qcom,ipq5332-gcc
+ then:
+ properties:
+ clocks:
+ maxItems: 5
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: qcom,ipq5424-gcc
+ then:
+ properties:
+ clocks:
+ minItems: 7
+ maxItems: 7
+
unevaluatedProperties: false
examples:
@@ -47,7 +78,6 @@ examples:
<&pcie_2lane_phy_pipe_clk_x1>,
<&usb_pcie_wrapper_pipe_clk>;
#clock-cells = <1>;
- #power-domain-cells = <1>;
#reset-cells = <1>;
};
...
diff --git a/Documentation/devicetree/bindings/clock/qcom,ipq5424-apss-clk.yaml b/Documentation/devicetree/bindings/clock/qcom,ipq5424-apss-clk.yaml
new file mode 100644
index 000000000000..def739fa0a8c
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,ipq5424-apss-clk.yaml
@@ -0,0 +1,55 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,ipq5424-apss-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm APSS IPQ5424 Clock Controller
+
+maintainers:
+ - Varadarajan Narayanan <quic_varada@quicinc.com>
+
+description:
+ The CPU core in ipq5424 is clocked by a huayra PLL with RCG support.
+ The RCG and PLL have a separate register space from the GCC.
+
+properties:
+ compatible:
+ enum:
+ - qcom,ipq5424-apss-clk
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: Reference to the XO clock.
+ - description: Reference to the GPLL0 clock.
+
+ '#clock-cells':
+ const: 1
+
+ '#interconnect-cells':
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - '#clock-cells'
+ - '#interconnect-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,ipq5424-gcc.h>
+
+ apss_clk: clock-controller@fa80000 {
+ compatible = "qcom,ipq5424-apss-clk";
+ reg = <0x0fa80000 0x20000>;
+ clocks = <&xo_board>,
+ <&gcc GPLL0>;
+ #clock-cells = <1>;
+ #interconnect-cells = <1>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/qcom,ipq9574-cmn-pll.yaml b/Documentation/devicetree/bindings/clock/qcom,ipq9574-cmn-pll.yaml
new file mode 100644
index 000000000000..817d51135fbf
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,ipq9574-cmn-pll.yaml
@@ -0,0 +1,79 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,ipq9574-cmn-pll.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm CMN PLL Clock Controller on IPQ SoC
+
+maintainers:
+ - Bjorn Andersson <andersson@kernel.org>
+ - Luo Jie <quic_luoj@quicinc.com>
+
+description:
+ The CMN (or common) PLL clock controller expects a reference
+ input clock. This reference clock is from the on-board Wi-Fi.
+ The CMN PLL supplies a number of fixed rate output clocks to
+ the devices providing networking functions and to GCC. These
+ networking hardware include PPE (packet process engine), PCS
+ and the externally connected switch or PHY devices. The CMN
+ PLL block also outputs fixed rate clocks to GCC. The PLL's
+ primary function is to enable fixed rate output clocks for
+ networking hardware functions used with the IPQ SoC.
+
+properties:
+ compatible:
+ enum:
+ - qcom,ipq5018-cmn-pll
+ - qcom,ipq5424-cmn-pll
+ - qcom,ipq9574-cmn-pll
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: The reference clock. The supported clock rates include
+ 25000000, 31250000, 40000000, 48000000, 50000000 and 96000000 HZ.
+ - description: The AHB clock
+ - description: The SYS clock
+ description:
+ The reference clock is the source clock of CMN PLL, which is from the
+ Wi-Fi. The AHB and SYS clocks must be enabled to access CMN PLL
+ clock registers.
+
+ clock-names:
+ items:
+ - const: ref
+ - const: ahb
+ - const: sys
+
+ "#clock-cells":
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - "#clock-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,ipq-cmn-pll.h>
+ #include <dt-bindings/clock/qcom,ipq9574-gcc.h>
+
+ cmn_pll: clock-controller@9b000 {
+ compatible = "qcom,ipq9574-cmn-pll";
+ reg = <0x0009b000 0x800>;
+ clocks = <&cmn_pll_ref_clk>,
+ <&gcc GCC_CMN_12GPLL_AHB_CLK>,
+ <&gcc GCC_CMN_12GPLL_SYS_CLK>;
+ clock-names = "ref", "ahb", "sys";
+ #clock-cells = <1>;
+ assigned-clocks = <&cmn_pll CMN_PLL_CLK>;
+ assigned-clock-rates-u64 = /bits/ 64 <12000000000>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,ipq9574-gcc.yaml b/Documentation/devicetree/bindings/clock/qcom,ipq9574-gcc.yaml
index afc68eb9d7cc..27ae9938febc 100644
--- a/Documentation/devicetree/bindings/clock/qcom,ipq9574-gcc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,ipq9574-gcc.yaml
@@ -7,6 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Qualcomm Global Clock & Reset Controller on IPQ9574
maintainers:
+ - Bjorn Andersson <andersson@kernel.org>
- Anusha Rao <quic_anusha@quicinc.com>
description: |
@@ -32,6 +33,11 @@ properties:
- description: PCIE30 PHY3 pipe clock source
- description: USB3 PHY pipe clock source
+ '#power-domain-cells': false
+
+ '#interconnect-cells':
+ const: 1
+
required:
- compatible
- clocks
@@ -56,6 +62,5 @@ examples:
<&usb3phy_0_cc_pipe_clk>;
#clock-cells = <1>;
#reset-cells = <1>;
- #power-domain-cells = <1>;
};
...
diff --git a/Documentation/devicetree/bindings/clock/qcom,ipq9574-nsscc.yaml b/Documentation/devicetree/bindings/clock/qcom,ipq9574-nsscc.yaml
new file mode 100644
index 000000000000..7ff4ff3587ca
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,ipq9574-nsscc.yaml
@@ -0,0 +1,145 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,ipq9574-nsscc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Networking Sub System Clock & Reset Controller on IPQ9574 and IPQ5424
+
+maintainers:
+ - Bjorn Andersson <andersson@kernel.org>
+ - Anusha Rao <quic_anusha@quicinc.com>
+
+description: |
+ Qualcomm networking sub system clock control module provides the clocks,
+ resets on IPQ9574 and IPQ5424
+
+ See also:
+ include/dt-bindings/clock/qcom,ipq5424-nsscc.h
+ include/dt-bindings/clock/qcom,ipq9574-nsscc.h
+ include/dt-bindings/reset/qcom,ipq5424-nsscc.h
+ include/dt-bindings/reset/qcom,ipq9574-nsscc.h
+
+properties:
+ compatible:
+ enum:
+ - qcom,ipq5424-nsscc
+ - qcom,ipq9574-nsscc
+
+ clocks:
+ items:
+ - description: Board XO source
+ - description: CMN_PLL NSS (Bias PLL cc) clock source. This clock rate
+ can vary for different IPQ SoCs. For example, it is 1200 MHz on the
+ IPQ9574 and 300 MHz on the IPQ5424.
+ - description: CMN_PLL PPE (Bias PLL ubi nc) clock source. The clock
+ rate can vary for different IPQ SoCs. For example, it is 353 MHz
+ on the IPQ9574 and 375 MHz on the IPQ5424.
+ - description: GCC GPLL0 OUT AUX clock source
+ - description: Uniphy0 NSS Rx clock source
+ - description: Uniphy0 NSS Tx clock source
+ - description: Uniphy1 NSS Rx clock source
+ - description: Uniphy1 NSS Tx clock source
+ - description: Uniphy2 NSS Rx clock source
+ - description: Uniphy2 NSS Tx clock source
+ - description: GCC NSSCC clock source
+
+ '#interconnect-cells':
+ const: 1
+
+ clock-names:
+ items:
+ - const: xo
+ - enum:
+ - nss_1200
+ - nss
+ - enum:
+ - ppe_353
+ - ppe
+ - const: gpll0_out
+ - const: uniphy0_rx
+ - const: uniphy0_tx
+ - const: uniphy1_rx
+ - const: uniphy1_tx
+ - const: uniphy2_rx
+ - const: uniphy2_tx
+ - const: bus
+
+required:
+ - compatible
+ - clocks
+ - clock-names
+
+allOf:
+ - $ref: qcom,gcc.yaml#
+ - if:
+ properties:
+ compatible:
+ const: qcom,ipq9574-nsscc
+ then:
+ properties:
+ clock-names:
+ items:
+ - const: xo
+ - const: nss_1200
+ - const: ppe_353
+ - const: gpll0_out
+ - const: uniphy0_rx
+ - const: uniphy0_tx
+ - const: uniphy1_rx
+ - const: uniphy1_tx
+ - const: uniphy2_rx
+ - const: uniphy2_tx
+ - const: bus
+ else:
+ properties:
+ clock-names:
+ items:
+ - const: xo
+ - const: nss
+ - const: ppe
+ - const: gpll0_out
+ - const: uniphy0_rx
+ - const: uniphy0_tx
+ - const: uniphy1_rx
+ - const: uniphy1_tx
+ - const: uniphy2_rx
+ - const: uniphy2_tx
+ - const: bus
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,ipq9574-gcc.h>
+ #include <dt-bindings/clock/qcom,ipq-cmn-pll.h>
+ clock-controller@39b00000 {
+ compatible = "qcom,ipq9574-nsscc";
+ reg = <0x39b00000 0x80000>;
+ clocks = <&xo_board_clk>,
+ <&cmn_pll NSS_1200MHZ_CLK>,
+ <&cmn_pll PPE_353MHZ_CLK>,
+ <&gcc GPLL0_OUT_AUX>,
+ <&uniphy 0>,
+ <&uniphy 1>,
+ <&uniphy 2>,
+ <&uniphy 3>,
+ <&uniphy 4>,
+ <&uniphy 5>,
+ <&gcc GCC_NSSCC_CLK>;
+ clock-names = "xo",
+ "nss_1200",
+ "ppe_353",
+ "gpll0_out",
+ "uniphy0_rx",
+ "uniphy0_tx",
+ "uniphy1_rx",
+ "uniphy1_tx",
+ "uniphy2_rx",
+ "uniphy2_tx",
+ "bus";
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #interconnect-cells = <1>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,kpss-acc-v1.yaml b/Documentation/devicetree/bindings/clock/qcom,kpss-acc-v1.yaml
index a466e4e8aacd..57632757d4e6 100644
--- a/Documentation/devicetree/bindings/clock/qcom,kpss-acc-v1.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,kpss-acc-v1.yaml
@@ -14,7 +14,7 @@ description:
There is one ACC register region per CPU within the KPSS remapped region as
well as an alias register region that remaps accesses to the ACC associated
with the CPU accessing the region. ACC v1 is currently used as a
- clock-controller for enabling the cpu and hanling the aux clocks.
+ clock-controller for enabling the cpu and handling the aux clocks.
properties:
compatible:
diff --git a/Documentation/devicetree/bindings/clock/qcom,krait-cc.txt b/Documentation/devicetree/bindings/clock/qcom,krait-cc.txt
deleted file mode 100644
index 030ba60dab08..000000000000
--- a/Documentation/devicetree/bindings/clock/qcom,krait-cc.txt
+++ /dev/null
@@ -1,34 +0,0 @@
-Krait Clock Controller
-
-PROPERTIES
-
-- compatible:
- Usage: required
- Value type: <string>
- Definition: must be one of:
- "qcom,krait-cc-v1"
- "qcom,krait-cc-v2"
-
-- #clock-cells:
- Usage: required
- Value type: <u32>
- Definition: must be 1
-
-- clocks:
- Usage: required
- Value type: <prop-encoded-array>
- Definition: reference to the clock parents of hfpll, secondary muxes.
-
-- clock-names:
- Usage: required
- Value type: <stringlist>
- Definition: must be "hfpll0", "hfpll1", "acpu0_aux", "acpu1_aux", "qsb".
-
-Example:
-
- kraitcc: clock-controller {
- compatible = "qcom,krait-cc-v1";
- clocks = <&hfpll0>, <&hfpll1>, <&acpu0_aux>, <&acpu1_aux>, <qsb>;
- clock-names = "hfpll0", "hfpll1", "acpu0_aux", "acpu1_aux", "qsb";
- #clock-cells = <1>;
- };
diff --git a/Documentation/devicetree/bindings/clock/qcom,krait-cc.yaml b/Documentation/devicetree/bindings/clock/qcom,krait-cc.yaml
new file mode 100644
index 000000000000..d6a019371fcf
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,krait-cc.yaml
@@ -0,0 +1,43 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,krait-cc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Krait Clock Controller
+
+maintainers:
+ - Stephen Boyd <sboyd@kernel.org>
+
+properties:
+ compatible:
+ enum:
+ - qcom,krait-cc-v1
+ - qcom,krait-cc-v2
+
+ '#clock-cells':
+ const: 1
+
+ clocks:
+ items:
+ - description: Parent clock phandle for hfpll0
+ - description: Parent clock phandle for hfpll1
+ - description: Parent clock phandle for acpu0_aux
+ - description: Parent clock phandle for acpu1_aux
+ - description: Parent clock phandle for qsb
+
+ clock-names:
+ items:
+ - const: hfpll0
+ - const: hfpll1
+ - const: acpu0_aux
+ - const: acpu1_aux
+ - const: qsb
+
+required:
+ - compatible
+ - '#clock-cells'
+ - clocks
+ - clock-names
+
+additionalProperties: false
diff --git a/Documentation/devicetree/bindings/clock/qcom,lcc.yaml b/Documentation/devicetree/bindings/clock/qcom,lcc.yaml
index 8c783823e93c..55985e562a34 100644
--- a/Documentation/devicetree/bindings/clock/qcom,lcc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,lcc.yaml
@@ -76,6 +76,40 @@ allOf:
- clocks
- clock-names
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,lcc-mdm9615
+ then:
+ properties:
+ clocks:
+ items:
+ - description: Board CXO source
+ - description: PLL 4 Vote clock
+ - description: MI2S codec clock
+ - description: Mic I2S codec clock
+ - description: Mic I2S spare clock
+ - description: Speaker I2S codec clock
+ - description: Speaker I2S spare clock
+ - description: PCM codec clock
+
+ clock-names:
+ items:
+ - const: cxo
+ - const: pll4_vote
+ - const: mi2s_codec_clk
+ - const: codec_i2s_mic_codec_clk
+ - const: spare_i2s_mic_codec_clk
+ - const: codec_i2s_spkr_codec_clk
+ - const: spare_i2s_spkr_codec_clk
+ - const: pcm_codec_clk
+
+ required:
+ - clocks
+ - clock-names
+
examples:
- |
clock-controller@28000000 {
diff --git a/Documentation/devicetree/bindings/clock/qcom,milos-camcc.yaml b/Documentation/devicetree/bindings/clock/qcom,milos-camcc.yaml
new file mode 100644
index 000000000000..f63149ecf3e1
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,milos-camcc.yaml
@@ -0,0 +1,51 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,milos-camcc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Camera Clock & Reset Controller on Milos
+
+maintainers:
+ - Luca Weiss <luca.weiss@fairphone.com>
+
+description: |
+ Qualcomm camera clock control module provides the clocks, resets and power
+ domains on Milos.
+
+ See also: include/dt-bindings/clock/qcom,milos-camcc.h
+
+properties:
+ compatible:
+ const: qcom,milos-camcc
+
+ clocks:
+ items:
+ - description: Board XO source
+ - description: Sleep clock source
+ - description: Camera AHB clock from GCC
+
+required:
+ - compatible
+ - clocks
+
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,milos-gcc.h>
+ clock-controller@adb0000 {
+ compatible = "qcom,milos-camcc";
+ reg = <0x0adb0000 0x40000>;
+ clocks = <&bi_tcxo_div2>,
+ <&sleep_clk>,
+ <&gcc GCC_CAMERA_AHB_CLK>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,milos-dispcc.yaml b/Documentation/devicetree/bindings/clock/qcom,milos-dispcc.yaml
new file mode 100644
index 000000000000..94908804756b
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,milos-dispcc.yaml
@@ -0,0 +1,63 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,milos-dispcc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Display Clock & Reset Controller on Milos
+
+maintainers:
+ - Luca Weiss <luca.weiss@fairphone.com>
+
+description: |
+ Qualcomm display clock control module provides the clocks, resets and power
+ domains on Milos.
+
+ See also: include/dt-bindings/clock/qcom,milos-dispcc.h
+
+properties:
+ compatible:
+ const: qcom,milos-dispcc
+
+ clocks:
+ items:
+ - description: Board XO source
+ - description: Sleep clock source
+ - description: Display's AHB clock
+ - description: GPLL0 source from GCC
+ - description: Byte clock from DSI PHY0
+ - description: Pixel clock from DSI PHY0
+ - description: Link clock from DP PHY0
+ - description: VCO DIV clock from DP PHY0
+
+required:
+ - compatible
+ - clocks
+ - '#power-domain-cells'
+
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,milos-gcc.h>
+ #include <dt-bindings/phy/phy-qcom-qmp.h>
+ clock-controller@af00000 {
+ compatible = "qcom,milos-dispcc";
+ reg = <0x0af00000 0x20000>;
+ clocks = <&bi_tcxo_div2>,
+ <&sleep_clk>,
+ <&gcc GCC_DISP_AHB_CLK>,
+ <&gcc GCC_DISP_GPLL0_DIV_CLK_SRC>,
+ <&mdss_dsi0_phy 0>,
+ <&mdss_dsi0_phy 1>,
+ <&usb_dp_qmpphy QMP_USB43DP_DP_LINK_CLK>,
+ <&usb_dp_qmpphy QMP_USB43DP_DP_VCO_DIV_CLK>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,milos-gcc.yaml b/Documentation/devicetree/bindings/clock/qcom,milos-gcc.yaml
new file mode 100644
index 000000000000..cf244c155f9a
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,milos-gcc.yaml
@@ -0,0 +1,62 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,milos-gcc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Global Clock & Reset Controller on Milos
+
+maintainers:
+ - Luca Weiss <luca.weiss@fairphone.com>
+
+description: |
+ Qualcomm global clock control module provides the clocks, resets and power
+ domains on Milos.
+
+ See also: include/dt-bindings/clock/qcom,milos-gcc.h
+
+properties:
+ compatible:
+ const: qcom,milos-gcc
+
+ clocks:
+ items:
+ - description: Board XO source
+ - description: Sleep clock source
+ - description: PCIE 0 Pipe clock source
+ - description: PCIE 1 Pipe clock source
+ - description: UFS Phy Rx symbol 0 clock source
+ - description: UFS Phy Rx symbol 1 clock source
+ - description: UFS Phy Tx symbol 0 clock source
+ - description: USB3 Phy wrapper pipe clock source
+
+required:
+ - compatible
+ - clocks
+ - '#power-domain-cells'
+
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,rpmh.h>
+ clock-controller@100000 {
+ compatible = "qcom,milos-gcc";
+ reg = <0x00100000 0x1f4200>;
+ clocks = <&rpmhcc RPMH_CXO_CLK>,
+ <&sleep_clk>,
+ <&pcie0_phy>,
+ <&pcie1_phy>,
+ <&ufs_mem_phy 0>,
+ <&ufs_mem_phy 1>,
+ <&ufs_mem_phy 2>,
+ <&usb_1_qmpphy>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,milos-videocc.yaml b/Documentation/devicetree/bindings/clock/qcom,milos-videocc.yaml
new file mode 100644
index 000000000000..14c31efe1308
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,milos-videocc.yaml
@@ -0,0 +1,53 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,milos-videocc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Video Clock & Reset Controller on Milos
+
+maintainers:
+ - Luca Weiss <luca.weiss@fairphone.com>
+
+description: |
+ Qualcomm video clock control module provides the clocks, resets and power
+ domains on Milos.
+
+ See also: include/dt-bindings/clock/qcom,milos-videocc.h
+
+properties:
+ compatible:
+ const: qcom,milos-videocc
+
+ clocks:
+ items:
+ - description: Board XO source
+ - description: Board active XO source
+ - description: Sleep clock source
+ - description: Video AHB clock from GCC
+
+required:
+ - compatible
+ - clocks
+
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,milos-gcc.h>
+ clock-controller@aaf0000 {
+ compatible = "qcom,milos-videocc";
+ reg = <0x0aaf0000 0x10000>;
+ clocks = <&bi_tcxo_div2>,
+ <&bi_tcxo_ao_div2>,
+ <&sleep_clk>,
+ <&gcc GCC_VIDEO_AHB_CLK>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,mmcc.yaml b/Documentation/devicetree/bindings/clock/qcom,mmcc.yaml
index acf0c923c24f..53ceec9673a8 100644
--- a/Documentation/devicetree/bindings/clock/qcom,mmcc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,mmcc.yaml
@@ -8,7 +8,7 @@ title: Qualcomm Multimedia Clock & Reset Controller
maintainers:
- Jeffrey Hugo <quic_jhugo@quicinc.com>
- - Taniya Das <tdas@codeaurora.org>
+ - Taniya Das <quic_tdas@quicinc.com>
description: |
Qualcomm multimedia clock control module provides the clocks, resets and
@@ -31,43 +31,23 @@ properties:
- qcom,mmcc-sdm660
clocks:
- minItems: 8
+ minItems: 7
maxItems: 13
clock-names:
- minItems: 8
+ minItems: 7
maxItems: 13
- '#clock-cells':
- const: 1
-
- '#reset-cells':
- const: 1
-
- '#power-domain-cells':
- const: 1
-
- reg:
- maxItems: 1
-
- protected-clocks:
- description:
- Protected clock specifier list as per common clock binding
-
vdd-gfx-supply:
description:
Regulator supply for the GPU_GX GDSC
required:
- compatible
- - reg
- - '#clock-cells'
- - '#reset-cells'
- '#power-domain-cells'
-additionalProperties: false
-
allOf:
+ - $ref: qcom,gcc.yaml#
- if:
properties:
compatible:
@@ -78,6 +58,7 @@ allOf:
then:
properties:
clocks:
+ minItems: 8
items:
- description: Board PXO source
- description: PLL 3 clock
@@ -87,8 +68,10 @@ allOf:
- description: DSI phy instance 2 dsi clock
- description: DSI phy instance 2 byte clock
- description: HDMI phy PLL clock
+ - description: LVDS PLL clock
clock-names:
+ minItems: 8
items:
- const: pxo
- const: pll3
@@ -98,6 +81,35 @@ allOf:
- const: dsi2pll
- const: dsi2pllbyte
- const: hdmipll
+ - const: lvdspll
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,mmcc-msm8226
+ then:
+ properties:
+ clocks:
+ items:
+ - description: Board XO source
+ - description: MMSS GPLL0 voted clock
+ - description: GPLL0 voted clock
+ - description: GPLL1 voted clock
+ - description: GFX3D clock source
+ - description: DSI phy instance 0 dsi clock
+ - description: DSI phy instance 0 byte clock
+
+ clock-names:
+ items:
+ - const: xo
+ - const: mmss_gpll0_vote
+ - const: gpll0_vote
+ - const: gpll1_vote
+ - const: gfx3d_clk_src
+ - const: dsi0pll
+ - const: dsi0pllbyte
- if:
properties:
@@ -269,6 +281,7 @@ allOf:
- description: HDMI phy PLL clock
- description: DisplayPort phy PLL link clock
- description: DisplayPort phy PLL vco clock
+ - description: Global PLL 0 DIV clock
clock-names:
items:
@@ -281,6 +294,7 @@ allOf:
- const: hdmipll
- const: dplink
- const: dpvco
+ - const: gpll0_div
- if:
properties:
@@ -317,6 +331,8 @@ allOf:
- const: dp_link_2x_clk_divsel_five
- const: dp_vco_divided_clk_src_mux
+unevaluatedProperties: false
+
examples:
# Example for MMCC for MSM8960:
- |
diff --git a/Documentation/devicetree/bindings/clock/qcom,msm8996-cbf.yaml b/Documentation/devicetree/bindings/clock/qcom,msm8996-cbf.yaml
index 3ffe69d8cdd5..0dfbd8c4d465 100644
--- a/Documentation/devicetree/bindings/clock/qcom,msm8996-cbf.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,msm8996-cbf.yaml
@@ -15,7 +15,9 @@ description: >
properties:
compatible:
- const: qcom,msm8996-cbf
+ enum:
+ - qcom,msm8996-cbf
+ - qcom,msm8996pro-cbf
reg:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/clock/qcom,msm8998-gpucc.yaml b/Documentation/devicetree/bindings/clock/qcom,msm8998-gpucc.yaml
index 2d8897991663..374de7a6f8d9 100644
--- a/Documentation/devicetree/bindings/clock/qcom,msm8998-gpucc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,msm8998-gpucc.yaml
@@ -7,13 +7,13 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Qualcomm Graphics Clock & Reset Controller on MSM8998
maintainers:
- - Taniya Das <tdas@codeaurora.org>
+ - Taniya Das <quic_tdas@quicinc.com>
description: |
Qualcomm graphics clock control module provides the clocks, resets and power
domains on MSM8998.
- See also:: include/dt-bindings/clock/qcom,gpucc-msm8998.h
+ See also: include/dt-bindings/clock/qcom,gpucc-msm8998.h
properties:
compatible:
@@ -29,28 +29,16 @@ properties:
- const: xo
- const: gpll0
- '#clock-cells':
- const: 1
-
- '#reset-cells':
- const: 1
-
- '#power-domain-cells':
- const: 1
-
- reg:
- maxItems: 1
-
required:
- compatible
- - reg
- clocks
- clock-names
- - '#clock-cells'
- - '#reset-cells'
- '#power-domain-cells'
-additionalProperties: false
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/clock/qcom,q6sstopcc.yaml b/Documentation/devicetree/bindings/clock/qcom,q6sstopcc.yaml
index 03fa30fe9253..e0f4d692728c 100644
--- a/Documentation/devicetree/bindings/clock/qcom,q6sstopcc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,q6sstopcc.yaml
@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Q6SSTOP clock Controller
maintainers:
- - Govind Singh <govinds@codeaurora.org>
+ - Bjorn Andersson <andersson@kernel.org>
properties:
compatible:
diff --git a/Documentation/devicetree/bindings/clock/qcom,qca8k-nsscc.yaml b/Documentation/devicetree/bindings/clock/qcom,qca8k-nsscc.yaml
new file mode 100644
index 000000000000..61473385da2d
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,qca8k-nsscc.yaml
@@ -0,0 +1,86 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,qca8k-nsscc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm NSS Clock & Reset Controller on QCA8386/QCA8084
+
+maintainers:
+ - Bjorn Andersson <andersson@kernel.org>
+ - Luo Jie <quic_luoj@quicinc.com>
+
+description: |
+ Qualcomm NSS clock control module provides the clocks and resets
+ on QCA8386(switch mode)/QCA8084(PHY mode)
+
+ See also::
+ include/dt-bindings/clock/qcom,qca8k-nsscc.h
+ include/dt-bindings/reset/qcom,qca8k-nsscc.h
+
+properties:
+ compatible:
+ oneOf:
+ - const: qcom,qca8084-nsscc
+ - items:
+ - enum:
+ - qcom,qca8082-nsscc
+ - qcom,qca8085-nsscc
+ - qcom,qca8384-nsscc
+ - qcom,qca8385-nsscc
+ - qcom,qca8386-nsscc
+ - const: qcom,qca8084-nsscc
+
+ clocks:
+ items:
+ - description: Chip reference clock source
+ - description: UNIPHY0 RX 312P5M/125M clock source
+ - description: UNIPHY0 TX 312P5M/125M clock source
+ - description: UNIPHY1 RX 312P5M/125M clock source
+ - description: UNIPHY1 TX 312P5M/125M clock source
+ - description: UNIPHY1 RX 312P5M clock source
+ - description: UNIPHY1 TX 312P5M clock source
+
+ reg:
+ items:
+ - description: MDIO bus address for Clock & Reset Controller register
+
+ reset-gpios:
+ description: GPIO connected to the chip
+ maxItems: 1
+
+required:
+ - compatible
+ - clocks
+ - reg
+ - reset-gpios
+
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ clock-controller@18 {
+ compatible = "qcom,qca8084-nsscc";
+ reg = <0x18>;
+ reset-gpios = <&tlmm 51 GPIO_ACTIVE_LOW>;
+ clocks = <&pcs0_pll>,
+ <&qca8k_uniphy0_rx>,
+ <&qca8k_uniphy0_tx>,
+ <&qca8k_uniphy1_rx>,
+ <&qca8k_uniphy1_tx>,
+ <&qca8k_uniphy1_rx312p5m>,
+ <&qca8k_uniphy1_tx312p5m>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,qcm2290-dispcc.yaml b/Documentation/devicetree/bindings/clock/qcom,qcm2290-dispcc.yaml
index 4a00f2d41684..4a533b45eec2 100644
--- a/Documentation/devicetree/bindings/clock/qcom,qcm2290-dispcc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,qcm2290-dispcc.yaml
@@ -13,7 +13,7 @@ description: |
Qualcomm display clock control module provides the clocks, resets and power
domains on qcm2290.
- See also:: include/dt-bindings/clock/qcom,dispcc-qcm2290.h
+ See also: include/dt-bindings/clock/qcom,dispcc-qcm2290.h
properties:
compatible:
@@ -37,28 +37,16 @@ properties:
- const: dsi0_phy_pll_out_byteclk
- const: dsi0_phy_pll_out_dsiclk
- '#clock-cells':
- const: 1
-
- '#reset-cells':
- const: 1
-
- '#power-domain-cells':
- const: 1
-
- reg:
- maxItems: 1
-
required:
- compatible
- - reg
- clocks
- clock-names
- - '#clock-cells'
- - '#reset-cells'
- '#power-domain-cells'
-additionalProperties: false
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/clock/qcom,qcm2290-gpucc.yaml b/Documentation/devicetree/bindings/clock/qcom,qcm2290-gpucc.yaml
new file mode 100644
index 000000000000..734880805c1b
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,qcm2290-gpucc.yaml
@@ -0,0 +1,77 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,qcm2290-gpucc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Graphics Clock & Reset Controller on QCM2290
+
+maintainers:
+ - Konrad Dybcio <konradybcio@kernel.org>
+
+description: |
+ Qualcomm graphics clock control module provides the clocks, resets and power
+ domains on Qualcomm SoCs.
+
+ See also::
+ include/dt-bindings/clock/qcom,qcm2290-gpucc.h
+
+properties:
+ compatible:
+ const: qcom,qcm2290-gpucc
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: AHB interface clock,
+ - description: SoC CXO clock
+ - description: GPLL0 main branch source
+ - description: GPLL0 div branch source
+
+ power-domains:
+ description:
+ A phandle and PM domain specifier for the CX power domain.
+ maxItems: 1
+
+ required-opps:
+ description:
+ A phandle to an OPP node describing required CX performance point.
+ maxItems: 1
+
+required:
+ - compatible
+ - clocks
+ - power-domains
+
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,gcc-qcm2290.h>
+ #include <dt-bindings/clock/qcom,rpmcc.h>
+ #include <dt-bindings/power/qcom-rpmpd.h>
+
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ clock-controller@5990000 {
+ compatible = "qcom,qcm2290-gpucc";
+ reg = <0x0 0x05990000 0x0 0x9000>;
+ clocks = <&gcc GCC_GPU_CFG_AHB_CLK>,
+ <&rpmcc RPM_SMD_XO_CLK_SRC>,
+ <&gcc GCC_GPU_GPLL0_CLK_SRC>,
+ <&gcc GCC_GPU_GPLL0_DIV_CLK_SRC>;
+ power-domains = <&rpmpd QCM2290_VDDCX>;
+ required-opps = <&rpmpd_opp_low_svs>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,qcs404-turingcc.yaml b/Documentation/devicetree/bindings/clock/qcom,qcs404-turingcc.yaml
new file mode 100644
index 000000000000..033e010754a2
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,qcs404-turingcc.yaml
@@ -0,0 +1,47 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,qcs404-turingcc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Turing Clock & Reset Controller on QCS404
+
+maintainers:
+ - Bjorn Andersson <andersson@kernel.org>
+
+properties:
+ compatible:
+ const: qcom,qcs404-turingcc
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 1
+
+ '#reset-cells':
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - '#clock-cells'
+ - '#reset-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,gcc-qcs404.h>
+ clock-controller@800000 {
+ compatible = "qcom,qcs404-turingcc";
+ reg = <0x00800000 0x30000>;
+ clocks = <&gcc GCC_CDSP_CFG_AHB_CLK>;
+
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/qcom,qcs615-dispcc.yaml b/Documentation/devicetree/bindings/clock/qcom,qcs615-dispcc.yaml
new file mode 100644
index 000000000000..d566f19beb0d
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,qcs615-dispcc.yaml
@@ -0,0 +1,55 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,qcs615-dispcc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Display Clock & Reset Controller on QCS615
+
+maintainers:
+ - Taniya Das <quic_tdas@quicinc.com>
+
+description: |
+ Qualcomm display clock control module provides the clocks, resets and power
+ domains on QCS615.
+
+ See also: include/dt-bindings/clock/qcom,qcs615-dispcc.h
+
+properties:
+ compatible:
+ const: qcom,qcs615-dispcc
+
+ clocks:
+ items:
+ - description: Board XO source
+ - description: GPLL0 clock source from GCC
+ - description: Byte clock from DSI PHY0
+ - description: Pixel clock from DSI PHY0
+ - description: Pixel clock from DSI PHY1
+ - description: Display port PLL link clock
+ - description: Display port PLL VCO DIV clock
+
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,rpmh.h>
+ #include <dt-bindings/clock/qcom,qcs615-gcc.h>
+ clock-controller@af00000 {
+ compatible = "qcom,qcs615-dispcc";
+ reg = <0x0af00000 0x20000>;
+ clocks = <&rpmhcc RPMH_CXO_CLK>,
+ <&gcc GCC_DISP_GPLL0_DIV_CLK_SRC>,
+ <&mdss_dsi0_phy 0>,
+ <&mdss_dsi0_phy 1>,
+ <&mdss_dsi1_phy 0>,
+ <&mdss_dp_phy 0>,
+ <&mdss_dp_vco 0>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,qcs615-gcc.yaml b/Documentation/devicetree/bindings/clock/qcom,qcs615-gcc.yaml
new file mode 100644
index 000000000000..4a828e102d25
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,qcs615-gcc.yaml
@@ -0,0 +1,59 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,qcs615-gcc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Global Clock & Reset Controller on QCS615
+
+maintainers:
+ - Taniya Das <quic_tdas@quicinc.com>
+
+description: |
+ Qualcomm global clock control module provides the clocks, resets and power
+ domains on QCS615.
+
+ See also: include/dt-bindings/clock/qcom,qcs615-gcc.h
+
+properties:
+ compatible:
+ const: qcom,qcs615-gcc
+
+ clocks:
+ items:
+ - description: Board XO source
+ - description: Board active XO source
+ - description: Sleep clock source
+
+ clock-names:
+ items:
+ - const: bi_tcxo
+ - const: bi_tcxo_ao
+ - const: sleep_clk
+
+required:
+ - compatible
+ - clocks
+ - clock-names
+ - '#power-domain-cells'
+
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,rpmh.h>
+ clock-controller@100000 {
+ compatible = "qcom,qcs615-gcc";
+ reg = <0x00100000 0x1f0000>;
+ clocks = <&rpmhcc RPMH_CXO_CLK>,
+ <&rpmhcc RPMH_CXO_CLK_A>,
+ <&sleep_clk>;
+ clock-names = "bi_tcxo", "bi_tcxo_ao", "sleep_clk";
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,qcs615-gpucc.yaml b/Documentation/devicetree/bindings/clock/qcom,qcs615-gpucc.yaml
new file mode 100644
index 000000000000..5f7d83d1a7be
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,qcs615-gpucc.yaml
@@ -0,0 +1,49 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,qcs615-gpucc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Graphics Clock & Reset Controller on QCS615
+
+maintainers:
+ - Taniya Das <quic_tdas@quicinc.com>
+
+description: |
+ Qualcomm graphics clock control module provides clocks, resets and power
+ domains on QCS615 Qualcomm SoCs.
+
+ See also: include/dt-bindings/clock/qcom,qcs615-gpucc.h
+
+properties:
+ compatible:
+ const: qcom,qcs615-gpucc
+
+ clocks:
+ items:
+ - description: Board XO source
+ - description: GPLL0 main branch source
+ - description: GPLL0 GPUCC div branch source
+
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,rpmh.h>
+ #include <dt-bindings/clock/qcom,qcs615-gcc.h>
+
+ clock-controller@5090000 {
+ compatible = "qcom,qcs615-gpucc";
+ reg = <0x5090000 0x9000>;
+ clocks = <&rpmhcc RPMH_CXO_CLK>,
+ <&gcc GPLL0>,
+ <&gcc GCC_GPU_GPLL0_DIV_CLK_SRC>;
+
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,qcs615-videocc.yaml b/Documentation/devicetree/bindings/clock/qcom,qcs615-videocc.yaml
new file mode 100644
index 000000000000..f51b69de1047
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,qcs615-videocc.yaml
@@ -0,0 +1,47 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,qcs615-videocc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Video Clock & Reset Controller on QCS615
+
+maintainers:
+ - Taniya Das <quic_tdas@quicinc.com>
+
+description: |
+ Qualcomm video clock control module provides clocks, resets and power
+ domains on QCS615 Qualcomm SoCs.
+
+ See also: include/dt-bindings/clock/qcom,qcs615-videocc.h
+
+properties:
+ compatible:
+ const: qcom,qcs615-videocc
+
+ clocks:
+ items:
+ - description: Board XO source
+ - description: Sleep clock source
+
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,rpmh.h>
+ #include <dt-bindings/clock/qcom,qcs615-gcc.h>
+
+ clock-controller@ab00000 {
+ compatible = "qcom,qcs615-videocc";
+ reg = <0xab00000 0x10000>;
+ clocks = <&rpmhcc RPMH_CXO_CLK>,
+ <&sleep_clk>;
+
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,qcs8300-gcc.yaml b/Documentation/devicetree/bindings/clock/qcom,qcs8300-gcc.yaml
new file mode 100644
index 000000000000..081bc452081f
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,qcs8300-gcc.yaml
@@ -0,0 +1,66 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,qcs8300-gcc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Technologies, Inc. Global Clock & Reset Controller on QCS8300
+
+maintainers:
+ - Taniya Das <quic_tdas@quicinc.com>
+ - Imran Shaik <quic_imrashai@quicinc.com>
+
+description: |
+ Qualcomm Technologies, Inc. Global clock control module provides the clocks, resets and
+ power domains on QCS8300
+
+ See also: include/dt-bindings/clock/qcom,qcs8300-gcc.h
+
+properties:
+ compatible:
+ const: qcom,qcs8300-gcc
+
+ clocks:
+ items:
+ - description: Board XO source
+ - description: Sleep clock source
+ - description: PCIE 0 Pipe clock source
+ - description: PCIE 1 Pipe clock source
+ - description: PCIE Phy Auxiliary clock source
+ - description: First EMAC controller reference clock
+ - description: UFS Phy Rx symbol 0 clock source
+ - description: UFS Phy Rx symbol 1 clock source
+ - description: UFS Phy Tx symbol 0 clock source
+ - description: USB3 Phy wrapper pipe clock source
+
+required:
+ - compatible
+ - clocks
+ - '#power-domain-cells'
+
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,rpmh.h>
+ clock-controller@100000 {
+ compatible = "qcom,qcs8300-gcc";
+ reg = <0x00100000 0xc7018>;
+ clocks = <&rpmhcc RPMH_CXO_CLK>,
+ <&sleep_clk>,
+ <&pcie_0_pipe_clk>,
+ <&pcie_1_pipe_clk>,
+ <&pcie_phy_aux_clk>,
+ <&rxc0_ref_clk>,
+ <&ufs_phy_rx_symbol_0_clk>,
+ <&ufs_phy_rx_symbol_1_clk>,
+ <&ufs_phy_tx_symbol_0_clk>,
+ <&usb3_phy_wrapper_gcc_usb30_prim_pipe_clk>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,qdu1000-ecpricc.yaml b/Documentation/devicetree/bindings/clock/qcom,qdu1000-ecpricc.yaml
new file mode 100644
index 000000000000..3038307ff2c5
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,qdu1000-ecpricc.yaml
@@ -0,0 +1,68 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,qdu1000-ecpricc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm ECPRI Clock & Reset Controller for QDU1000 and QRU1000
+
+maintainers:
+ - Taniya Das <quic_tdas@quicinc.com>
+ - Imran Shaik <quic_imrashai@quicinc.com>
+
+description: |
+ Qualcomm ECPRI Specification V2.0 Common Public Radio Interface clock control
+ module which supports the clocks, resets on QDU1000 and QRU1000
+
+ See also: include/dt-bindings/clock/qcom,qdu1000-ecpricc.h
+
+properties:
+ compatible:
+ enum:
+ - qcom,qdu1000-ecpricc
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: Board XO source
+ - description: GPLL0 source from GCC
+ - description: GPLL1 source from GCC
+ - description: GPLL2 source from GCC
+ - description: GPLL3 source from GCC
+ - description: GPLL4 source from GCC
+ - description: GPLL5 source from GCC
+
+ '#clock-cells':
+ const: 1
+
+ '#reset-cells':
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - '#clock-cells'
+ - '#reset-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,qdu1000-gcc.h>
+ #include <dt-bindings/clock/qcom,rpmh.h>
+ clock-controller@280000 {
+ compatible = "qcom,qdu1000-ecpricc";
+ reg = <0x00280000 0x31c00>;
+ clocks = <&rpmhcc RPMH_CXO_CLK>,
+ <&gcc GCC_ECPRI_CC_GPLL0_CLK_SRC>,
+ <&gcc GCC_ECPRI_CC_GPLL1_EVEN_CLK_SRC>,
+ <&gcc GCC_ECPRI_CC_GPLL2_EVEN_CLK_SRC>,
+ <&gcc GCC_ECPRI_CC_GPLL3_CLK_SRC>,
+ <&gcc GCC_ECPRI_CC_GPLL4_CLK_SRC>,
+ <&gcc GCC_ECPRI_CC_GPLL5_EVEN_CLK_SRC>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/qcom,qdu1000-gcc.yaml b/Documentation/devicetree/bindings/clock/qcom,qdu1000-gcc.yaml
index 767a9d03aa32..2c5a9ef4fe4d 100644
--- a/Documentation/devicetree/bindings/clock/qcom,qdu1000-gcc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,qdu1000-gcc.yaml
@@ -7,13 +7,14 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Qualcomm Global Clock & Reset Controller for QDU1000 and QRU1000
maintainers:
- - Melody Olvera <quic_molvera@quicinc.com>
+ - Taniya Das <quic_tdas@quicinc.com>
+ - Imran Shaik <quic_imrashai@quicinc.com>
description: |
Qualcomm global clock control module which supports the clocks, resets and
power domains on QDU1000 and QRU1000
- See also:: include/dt-bindings/clock/qcom,qdu1000-gcc.h
+ See also: include/dt-bindings/clock/qcom,qdu1000-gcc.h
properties:
compatible:
@@ -30,6 +31,7 @@ properties:
required:
- compatible
- clocks
+ - '#power-domain-cells'
allOf:
- $ref: qcom,gcc.yaml#
diff --git a/Documentation/devicetree/bindings/clock/qcom,rpmcc.yaml b/Documentation/devicetree/bindings/clock/qcom,rpmcc.yaml
index 3665dd30604a..ab97d4b7dba8 100644
--- a/Documentation/devicetree/bindings/clock/qcom,rpmcc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,rpmcc.yaml
@@ -8,7 +8,7 @@ title: Qualcomm RPM Clock Controller
maintainers:
- Bjorn Andersson <bjorn.andersson@linaro.org>
- - Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
+ - Krzysztof Kozlowski <krzk@kernel.org>
description: |
The clock enumerators are defined in <dt-bindings/clock/qcom,rpmcc.h> and
@@ -33,6 +33,8 @@ properties:
- qcom,rpmcc-msm8916
- qcom,rpmcc-msm8917
- qcom,rpmcc-msm8936
+ - qcom,rpmcc-msm8937
+ - qcom,rpmcc-msm8940
- qcom,rpmcc-msm8953
- qcom,rpmcc-msm8974
- qcom,rpmcc-msm8976
@@ -42,6 +44,7 @@ properties:
- qcom,rpmcc-msm8998
- qcom,rpmcc-qcm2290
- qcom,rpmcc-qcs404
+ - qcom,rpmcc-sdm429
- qcom,rpmcc-sdm660
- qcom,rpmcc-sm6115
- qcom,rpmcc-sm6125
@@ -110,6 +113,8 @@ allOf:
- qcom,rpmcc-msm8916
- qcom,rpmcc-msm8917
- qcom,rpmcc-msm8936
+ - qcom,rpmcc-msm8937
+ - qcom,rpmcc-msm8940
- qcom,rpmcc-msm8953
- qcom,rpmcc-msm8974
- qcom,rpmcc-msm8976
@@ -119,6 +124,7 @@ allOf:
- qcom,rpmcc-msm8998
- qcom,rpmcc-qcm2290
- qcom,rpmcc-qcs404
+ - qcom,rpmcc-sdm429
- qcom,rpmcc-sdm660
- qcom,rpmcc-sm6115
- qcom,rpmcc-sm6125
@@ -139,7 +145,7 @@ examples:
- |
rpm {
rpm-requests {
- compatible = "qcom,rpm-msm8916";
+ compatible = "qcom,rpm-msm8916", "qcom,smd-rpm";
qcom,smd-channels = "rpm_requests";
clock-controller {
diff --git a/Documentation/devicetree/bindings/clock/qcom,rpmhcc.yaml b/Documentation/devicetree/bindings/clock/qcom,rpmhcc.yaml
index d5a250b7c2af..3f5f1336262e 100644
--- a/Documentation/devicetree/bindings/clock/qcom,rpmhcc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,rpmhcc.yaml
@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Qualcomm Technologies, Inc. RPMh Clocks
maintainers:
- - Taniya Das <tdas@codeaurora.org>
+ - Taniya Das <quic_tdas@quicinc.com>
description: |
Resource Power Manager Hardened (RPMh) manages shared resources on
@@ -17,8 +17,13 @@ description: |
properties:
compatible:
enum:
+ - qcom,glymur-rpmh-clk
+ - qcom,kaanapali-rpmh-clk
+ - qcom,milos-rpmh-clk
+ - qcom,qcs615-rpmh-clk
- qcom,qdu1000-rpmh-clk
- qcom,sa8775p-rpmh-clk
+ - qcom,sar2130p-rpmh-clk
- qcom,sc7180-rpmh-clk
- qcom,sc7280-rpmh-clk
- qcom,sc8180x-rpmh-clk
@@ -27,12 +32,17 @@ properties:
- qcom,sdm845-rpmh-clk
- qcom,sdx55-rpmh-clk
- qcom,sdx65-rpmh-clk
+ - qcom,sdx75-rpmh-clk
+ - qcom,sm4450-rpmh-clk
- qcom,sm6350-rpmh-clk
- qcom,sm8150-rpmh-clk
- qcom,sm8250-rpmh-clk
- qcom,sm8350-rpmh-clk
- qcom,sm8450-rpmh-clk
- qcom,sm8550-rpmh-clk
+ - qcom,sm8650-rpmh-clk
+ - qcom,sm8750-rpmh-clk
+ - qcom,x1e80100-rpmh-clk
clocks:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/clock/qcom,sa8775p-camcc.yaml b/Documentation/devicetree/bindings/clock/qcom,sa8775p-camcc.yaml
new file mode 100644
index 000000000000..f42ccb6627a3
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,sa8775p-camcc.yaml
@@ -0,0 +1,81 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,sa8775p-camcc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Camera Clock & Reset Controller on SA8775P
+
+maintainers:
+ - Taniya Das <quic_tdas@quicinc.com>
+ - Imran Shaik <quic_imrashai@quicinc.com>
+
+description: |
+ Qualcomm camera clock control module provides the clocks, resets and power
+ domains on SA8775p.
+
+ See also:
+ include/dt-bindings/clock/qcom,qcs8300-camcc.h
+ include/dt-bindings/clock/qcom,sa8775p-camcc.h
+ include/dt-bindings/clock/qcom,sc8280xp-camcc.h
+
+properties:
+ compatible:
+ enum:
+ - qcom,qcs8300-camcc
+ - qcom,sa8775p-camcc
+ - qcom,sc8280xp-camcc
+
+ clocks:
+ items:
+ - description: Camera AHB clock from GCC
+ - description: Board XO source
+ - description: Board active XO source
+ - description: Sleep clock source
+
+ power-domains:
+ maxItems: 1
+ description: MMCX power domain
+
+ required-opps:
+ description:
+ OPP node describing required MMCX performance point.
+ maxItems: 1
+
+required:
+ - compatible
+ - clocks
+ - power-domains
+ - '#power-domain-cells'
+
+allOf:
+ - $ref: qcom,gcc.yaml#
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: qcom,sc8280xp-camcc
+ then:
+ required:
+ - required-opps
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,rpmh.h>
+ #include <dt-bindings/power/qcom-rpmpd.h>
+ #include <dt-bindings/clock/qcom,sa8775p-gcc.h>
+ clock-controller@ade0000 {
+ compatible = "qcom,sa8775p-camcc";
+ reg = <0x0ade0000 0x20000>;
+ clocks = <&gcc GCC_CAMERA_AHB_CLK>,
+ <&rpmhcc RPMH_CXO_CLK>,
+ <&rpmhcc RPMH_CXO_CLK_A>,
+ <&sleep_clk>;
+ power-domains = <&rpmhpd SA8775P_MMCX>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,sa8775p-dispcc.yaml b/Documentation/devicetree/bindings/clock/qcom,sa8775p-dispcc.yaml
new file mode 100644
index 000000000000..ce61755e62d4
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,sa8775p-dispcc.yaml
@@ -0,0 +1,79 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,sa8775p-dispcc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Display Clock & Reset Controller on SA8775P
+
+maintainers:
+ - Taniya Das <quic_tdas@quicinc.com>
+
+description: |
+ Qualcomm display clock control module provides the clocks, resets and power
+ domains on SA8775P.
+
+ See also: include/dt-bindings/clock/qcom,sa8775p-dispcc.h
+
+properties:
+ compatible:
+ enum:
+ - qcom,sa8775p-dispcc0
+ - qcom,sa8775p-dispcc1
+
+ clocks:
+ items:
+ - description: GCC AHB clock source
+ - description: Board XO source
+ - description: Board XO_AO source
+ - description: Sleep clock source
+ - description: Link clock from DP0 PHY
+ - description: VCO DIV clock from DP0 PHY
+ - description: Link clock from DP1 PHY
+ - description: VCO DIV clock from DP1 PHY
+ - description: Byte clock from DSI0 PHY
+ - description: Pixel clock from DSI0 PHY
+ - description: Byte clock from DSI1 PHY
+ - description: Pixel clock from DSI1 PHY
+
+ power-domains:
+ maxItems: 1
+ description: MMCX power domain
+
+required:
+ - compatible
+ - clocks
+ - power-domains
+ - '#power-domain-cells'
+
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,rpmh.h>
+ #include <dt-bindings/power/qcom-rpmpd.h>
+ #include <dt-bindings/clock/qcom,sa8775p-gcc.h>
+ clock-controller@af00000 {
+ compatible = "qcom,sa8775p-dispcc0";
+ reg = <0x0af00000 0x20000>;
+ clocks = <&gcc GCC_DISP_AHB_CLK>,
+ <&rpmhcc RPMH_CXO_CLK>,
+ <&rpmhcc RPMH_CXO_CLK_A>,
+ <&sleep_clk>,
+ <&dp_phy0 0>,
+ <&dp_phy0 1>,
+ <&dp_phy1 2>,
+ <&dp_phy1 3>,
+ <&dsi_phy0 0>,
+ <&dsi_phy0 1>,
+ <&dsi_phy1 2>,
+ <&dsi_phy1 3>;
+ power-domains = <&rpmhpd SA8775P_MMCX>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,sa8775p-gcc.yaml b/Documentation/devicetree/bindings/clock/qcom,sa8775p-gcc.yaml
index 0f641c235b13..c641aac8c451 100644
--- a/Documentation/devicetree/bindings/clock/qcom,sa8775p-gcc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,sa8775p-gcc.yaml
@@ -13,7 +13,7 @@ description: |
Qualcomm global clock control module provides the clocks, resets and
power domains on sa8775p.
- See also:: include/dt-bindings/clock/qcom,sa8775p-gcc.h
+ See also: include/dt-bindings/clock/qcom,sa8775p-gcc.h
properties:
compatible:
@@ -46,6 +46,7 @@ properties:
required:
- compatible
- clocks
+ - '#power-domain-cells'
allOf:
- $ref: qcom,gcc.yaml#
diff --git a/Documentation/devicetree/bindings/clock/qcom,sa8775p-videocc.yaml b/Documentation/devicetree/bindings/clock/qcom,sa8775p-videocc.yaml
new file mode 100644
index 000000000000..07e5d811d816
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,sa8775p-videocc.yaml
@@ -0,0 +1,63 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,sa8775p-videocc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Video Clock & Reset Controller on SA8775P
+
+maintainers:
+ - Taniya Das <quic_tdas@quicinc.com>
+
+description: |
+ Qualcomm video clock control module provides the clocks, resets and power
+ domains on SA8775P.
+
+ See also: include/dt-bindings/clock/qcom,sa8775p-videocc.h
+
+properties:
+ compatible:
+ enum:
+ - qcom,qcs8300-videocc
+ - qcom,sa8775p-videocc
+
+ clocks:
+ items:
+ - description: Video AHB clock from GCC
+ - description: Board XO source
+ - description: Board active XO source
+ - description: Sleep Clock source
+
+ power-domains:
+ maxItems: 1
+ description: MMCX power domain
+
+required:
+ - compatible
+ - clocks
+ - power-domains
+ - '#power-domain-cells'
+
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,rpmh.h>
+ #include <dt-bindings/power/qcom-rpmpd.h>
+ #include <dt-bindings/clock/qcom,sa8775p-gcc.h>
+ videocc: clock-controller@abf0000 {
+ compatible = "qcom,sa8775p-videocc";
+ reg = <0x0abf0000 0x10000>;
+ clocks = <&gcc GCC_VIDEO_AHB_CLK>,
+ <&rpmhcc RPMH_CXO_CLK>,
+ <&rpmhcc RPMH_CXO_CLK_A>,
+ <&sleep_clk>;
+ power-domains = <&rpmhpd SA8775P_MMCX>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,sar2130p-gcc.yaml b/Documentation/devicetree/bindings/clock/qcom,sar2130p-gcc.yaml
new file mode 100644
index 000000000000..9a430bbd872a
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,sar2130p-gcc.yaml
@@ -0,0 +1,65 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,sar2130p-gcc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Global Clock & Reset Controller on sar2130p
+
+maintainers:
+ - Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
+
+description: |
+ Qualcomm global clock control module provides the clocks, resets and
+ power domains on sar2130p.
+
+ See also: include/dt-bindings/clock/qcom,sar2130p-gcc.h
+
+properties:
+ compatible:
+ const: qcom,sar2130p-gcc
+
+ clocks:
+ items:
+ - description: XO reference clock
+ - description: Sleep clock
+ - description: PCIe 0 pipe clock
+ - description: PCIe 1 pipe clock
+ - description: Primary USB3 PHY wrapper pipe clock
+
+ protected-clocks:
+ maxItems: 240
+
+ power-domains:
+ maxItems: 1
+
+required:
+ - compatible
+ - clocks
+ - '#power-domain-cells'
+
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,rpmh.h>
+ #include <dt-bindings/power/qcom,rpmhpd.h>
+
+ gcc: clock-controller@100000 {
+ compatible = "qcom,sar2130p-gcc";
+ reg = <0x100000 0x1f4200>;
+ clocks = <&rpmhcc RPMH_CXO_CLK>,
+ <&sleep_clk>,
+ <&pcie_0_pipe_clk>,
+ <&pcie_1_pipe_clk>,
+ <&usb_0_ssphy>;
+ power-domains = <&rpmhpd RPMHPD_CX>;
+
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,sc7180-camcc.yaml b/Documentation/devicetree/bindings/clock/qcom,sc7180-camcc.yaml
index 098c8acf4bad..98ee9be84794 100644
--- a/Documentation/devicetree/bindings/clock/qcom,sc7180-camcc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,sc7180-camcc.yaml
@@ -7,13 +7,16 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Qualcomm Camera Clock & Reset Controller on SC7180
maintainers:
- - Taniya Das <tdas@codeaurora.org>
+ - Taniya Das <quic_tdas@quicinc.com>
description: |
Qualcomm camera clock control module provides the clocks, resets and power
domains on SC7180.
- See also:: include/dt-bindings/clock/qcom,camcc-sc7180.h
+ See also: include/dt-bindings/clock/qcom,camcc-sc7180.h
+
+allOf:
+ - $ref: qcom,gcc.yaml#
properties:
compatible:
@@ -31,28 +34,15 @@ properties:
- const: iface
- const: xo
- '#clock-cells':
- const: 1
-
- '#reset-cells':
- const: 1
-
- '#power-domain-cells':
- const: 1
-
reg:
maxItems: 1
required:
- compatible
- - reg
- clocks
- clock-names
- - '#clock-cells'
- - '#reset-cells'
- - '#power-domain-cells'
-additionalProperties: false
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/clock/qcom,sc7180-dispcc.yaml b/Documentation/devicetree/bindings/clock/qcom,sc7180-dispcc.yaml
index 95ad16d0abc3..f147d06ad2ef 100644
--- a/Documentation/devicetree/bindings/clock/qcom,sc7180-dispcc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,sc7180-dispcc.yaml
@@ -7,13 +7,13 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Qualcomm Display Clock & Reset Controller on SC7180
maintainers:
- - Taniya Das <tdas@codeaurora.org>
+ - Taniya Das <quic_tdas@quicinc.com>
description: |
Qualcomm display clock control module provides the clocks, resets and power
domains on SC7180.
- See also:: include/dt-bindings/clock/qcom,dispcc-sc7180.h
+ See also: include/dt-bindings/clock/qcom,dispcc-sc7180.h
properties:
compatible:
@@ -37,28 +37,16 @@ properties:
- const: dp_phy_pll_link_clk
- const: dp_phy_pll_vco_div_clk
- '#clock-cells':
- const: 1
-
- '#reset-cells':
- const: 1
-
- '#power-domain-cells':
- const: 1
-
- reg:
- maxItems: 1
-
required:
- compatible
- - reg
- clocks
- clock-names
- - '#clock-cells'
- - '#reset-cells'
- '#power-domain-cells'
-additionalProperties: false
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/clock/qcom,sc7180-lpasscorecc.yaml b/Documentation/devicetree/bindings/clock/qcom,sc7180-lpasscorecc.yaml
index f297694ef8b8..ad360debef7c 100644
--- a/Documentation/devicetree/bindings/clock/qcom,sc7180-lpasscorecc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,sc7180-lpasscorecc.yaml
@@ -7,13 +7,13 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Qualcomm LPASS Core Clock Controller on SC7180
maintainers:
- - Taniya Das <tdas@codeaurora.org>
+ - Taniya Das <quic_tdas@quicinc.com>
description: |
Qualcomm LPASS core clock control module provides the clocks and power
domains on SC7180.
- See also:: include/dt-bindings/clock/qcom,lpasscorecc-sc7180.h
+ See also: include/dt-bindings/clock/qcom,lpasscorecc-sc7180.h
properties:
compatible:
diff --git a/Documentation/devicetree/bindings/clock/qcom,sc7180-mss.yaml b/Documentation/devicetree/bindings/clock/qcom,sc7180-mss.yaml
deleted file mode 100644
index 1e856a8a996e..000000000000
--- a/Documentation/devicetree/bindings/clock/qcom,sc7180-mss.yaml
+++ /dev/null
@@ -1,61 +0,0 @@
-# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
-%YAML 1.2
----
-$id: http://devicetree.org/schemas/clock/qcom,sc7180-mss.yaml#
-$schema: http://devicetree.org/meta-schemas/core.yaml#
-
-title: Qualcomm Modem Clock Controller on SC7180
-
-maintainers:
- - Taniya Das <tdas@codeaurora.org>
-
-description: |
- Qualcomm modem clock control module provides the clocks on SC7180.
-
- See also:: include/dt-bindings/clock/qcom,mss-sc7180.h
-
-properties:
- compatible:
- const: qcom,sc7180-mss
-
- clocks:
- items:
- - description: gcc_mss_mfab_axi clock from GCC
- - description: gcc_mss_nav_axi clock from GCC
- - description: gcc_mss_cfg_ahb clock from GCC
-
- clock-names:
- items:
- - const: gcc_mss_mfab_axis
- - const: gcc_mss_nav_axi
- - const: cfg_ahb
-
- '#clock-cells':
- const: 1
-
- reg:
- maxItems: 1
-
-required:
- - compatible
- - reg
- - clocks
- - '#clock-cells'
-
-additionalProperties: false
-
-examples:
- - |
- #include <dt-bindings/clock/qcom,gcc-sc7180.h>
- clock-controller@41a8000 {
- compatible = "qcom,sc7180-mss";
- reg = <0x041a8000 0x8000>;
- clocks = <&gcc GCC_MSS_MFAB_AXIS_CLK>,
- <&gcc GCC_MSS_NAV_AXI_CLK>,
- <&gcc GCC_MSS_CFG_AHB_CLK>;
- clock-names = "gcc_mss_mfab_axis",
- "gcc_mss_nav_axi",
- "cfg_ahb";
- #clock-cells = <1>;
- };
-...
diff --git a/Documentation/devicetree/bindings/clock/qcom,sc7280-camcc.yaml b/Documentation/devicetree/bindings/clock/qcom,sc7280-camcc.yaml
index b60adbad4590..2f28be58e82e 100644
--- a/Documentation/devicetree/bindings/clock/qcom,sc7280-camcc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,sc7280-camcc.yaml
@@ -7,13 +7,16 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Qualcomm Camera Clock & Reset Controller on SC7280
maintainers:
- - Taniya Das <tdas@codeaurora.org>
+ - Taniya Das <quic_tdas@quicinc.com>
description: |
Qualcomm camera clock control module provides the clocks, resets and
power domains on SC7280.
- See also:: include/dt-bindings/clock/qcom,camcc-sc7280.h
+ See also: include/dt-bindings/clock/qcom,camcc-sc7280.h
+
+allOf:
+ - $ref: qcom,gcc.yaml#
properties:
compatible:
@@ -31,28 +34,15 @@ properties:
- const: bi_tcxo_ao
- const: sleep_clk
- '#clock-cells':
- const: 1
-
- '#reset-cells':
- const: 1
-
- '#power-domain-cells':
- const: 1
-
reg:
maxItems: 1
required:
- compatible
- - reg
- clocks
- clock-names
- - '#clock-cells'
- - '#reset-cells'
- - '#power-domain-cells'
-additionalProperties: false
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/clock/qcom,sc7280-dispcc.yaml b/Documentation/devicetree/bindings/clock/qcom,sc7280-dispcc.yaml
index cfe6594a0a6b..95b1e4f48c4f 100644
--- a/Documentation/devicetree/bindings/clock/qcom,sc7280-dispcc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,sc7280-dispcc.yaml
@@ -7,13 +7,13 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Qualcomm Display Clock & Reset Controller on SC7280
maintainers:
- - Taniya Das <tdas@codeaurora.org>
+ - Taniya Das <quic_tdas@quicinc.com>
description: |
Qualcomm display clock control module provides the clocks, resets and power
domains on SC7280.
- See also:: include/dt-bindings/clock/qcom,dispcc-sc7280.h
+ See also: include/dt-bindings/clock/qcom,dispcc-sc7280.h
properties:
compatible:
@@ -41,28 +41,16 @@ properties:
- const: edp_phy_pll_link_clk
- const: edp_phy_pll_vco_div_clk
- '#clock-cells':
- const: 1
-
- '#reset-cells':
- const: 1
-
- '#power-domain-cells':
- const: 1
-
- reg:
- maxItems: 1
-
required:
- compatible
- - reg
- clocks
- clock-names
- - '#clock-cells'
- - '#reset-cells'
- '#power-domain-cells'
-additionalProperties: false
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/clock/qcom,sc7280-lpasscc.yaml b/Documentation/devicetree/bindings/clock/qcom,sc7280-lpasscc.yaml
index 97c6bd96e0cb..a90961d8656c 100644
--- a/Documentation/devicetree/bindings/clock/qcom,sc7280-lpasscc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,sc7280-lpasscc.yaml
@@ -7,13 +7,13 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Qualcomm LPASS Core Clock Controller on SC7280
maintainers:
- - Taniya Das <tdas@codeaurora.org>
+ - Taniya Das <quic_tdas@quicinc.com>
description: |
Qualcomm LPASS core clock control module provides the clocks and power
domains on SC7280.
- See also:: include/dt-bindings/clock/qcom,lpass-sc7280.h
+ See also: include/dt-bindings/clock/qcom,lpass-sc7280.h
properties:
compatible:
diff --git a/Documentation/devicetree/bindings/clock/qcom,sc7280-lpasscorecc.yaml b/Documentation/devicetree/bindings/clock/qcom,sc7280-lpasscorecc.yaml
index 447cdc447a0c..99ab9106009f 100644
--- a/Documentation/devicetree/bindings/clock/qcom,sc7280-lpasscorecc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,sc7280-lpasscorecc.yaml
@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Qualcomm LPASS Core & Audio Clock Controller on SC7280
maintainers:
- - Taniya Das <tdas@codeaurora.org>
+ - Taniya Das <quic_tdas@quicinc.com>
description: |
Qualcomm LPASS core and audio clock control module provides the clocks and
@@ -18,25 +18,32 @@ description: |
include/dt-bindings/clock/qcom,lpassaudiocc-sc7280.h
properties:
- clocks: true
-
- clock-names: true
-
- reg: true
-
compatible:
enum:
+ - qcom,qcm6490-lpassaudiocc
- qcom,sc7280-lpassaoncc
- qcom,sc7280-lpassaudiocc
- qcom,sc7280-lpasscorecc
- qcom,sc7280-lpasshm
- power-domains:
- maxItems: 1
+ reg:
+ minItems: 1
+ maxItems: 2
+
+ clocks:
+ minItems: 1
+ maxItems: 3
+
+ clock-names:
+ minItems: 1
+ maxItems: 3
'#clock-cells':
const: 1
+ power-domains:
+ maxItems: 1
+
'#power-domain-cells':
const: 1
@@ -57,14 +64,14 @@ required:
- '#clock-cells'
- '#power-domain-cells'
-additionalProperties: false
-
allOf:
- if:
properties:
compatible:
contains:
- const: qcom,sc7280-lpassaudiocc
+ enum:
+ - qcom,qcm6490-lpassaudiocc
+ - qcom,sc7280-lpassaudiocc
then:
properties:
@@ -125,6 +132,9 @@ allOf:
reg:
maxItems: 1
+
+additionalProperties: false
+
examples:
- |
#include <dt-bindings/clock/qcom,rpmh.h>
diff --git a/Documentation/devicetree/bindings/clock/qcom,sc8180x-camcc.yaml b/Documentation/devicetree/bindings/clock/qcom,sc8180x-camcc.yaml
new file mode 100644
index 000000000000..477ee687520e
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,sc8180x-camcc.yaml
@@ -0,0 +1,67 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,sc8180x-camcc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Camera Clock & Reset Controller on SC8180X
+
+maintainers:
+ - Satya Priya Kakitapalli <quic_skakitap@quicinc.com>
+
+description: |
+ Qualcomm camera clock control module provides the clocks, resets and
+ power domains on SC8180X.
+
+ See also: include/dt-bindings/clock/qcom,sc8180x-camcc.h
+
+properties:
+ compatible:
+ const: qcom,sc8180x-camcc
+
+ clocks:
+ items:
+ - description: Camera AHB clock from GCC
+ - description: Board XO source
+ - description: Sleep clock source
+
+ power-domains:
+ maxItems: 1
+ description:
+ A phandle and PM domain specifier for the MMCX power domain.
+
+ required-opps:
+ maxItems: 1
+ description:
+ A phandle to an OPP node describing required MMCX performance point.
+
+required:
+ - compatible
+ - clocks
+ - power-domains
+ - required-opps
+
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,gcc-sc8180x.h>
+ #include <dt-bindings/clock/qcom,rpmh.h>
+ #include <dt-bindings/power/qcom-rpmpd.h>
+ clock-controller@ad00000 {
+ compatible = "qcom,sc8180x-camcc";
+ reg = <0x0ad00000 0x20000>;
+ clocks = <&gcc GCC_CAMERA_AHB_CLK>,
+ <&rpmhcc RPMH_CXO_CLK>,
+ <&sleep_clk>;
+ power-domains = <&rpmhpd SC8180X_MMCX>;
+ required-opps = <&rpmhpd_opp_low_svs>;
+
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,sc8280xp-lpasscc.yaml b/Documentation/devicetree/bindings/clock/qcom,sc8280xp-lpasscc.yaml
new file mode 100644
index 000000000000..273d66e245c5
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,sc8280xp-lpasscc.yaml
@@ -0,0 +1,67 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,sc8280xp-lpasscc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm LPASS Core & Audio Clock Controller on SC8280XP
+
+maintainers:
+ - Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
+
+description: |
+ Qualcomm LPASS core and audio clock control module provides the clocks,
+ and reset on SC8280XP.
+
+ See also::
+ include/dt-bindings/clock/qcom,lpasscc-sc8280xp.h
+
+properties:
+ compatible:
+ oneOf:
+ - enum:
+ - qcom,sc8280xp-lpassaudiocc
+ - qcom,sc8280xp-lpasscc
+ - items:
+ - const: qcom,x1e80100-lpassaudiocc
+ - const: qcom,sc8280xp-lpassaudiocc
+ - items:
+ - const: qcom,x1e80100-lpasscc
+ - const: qcom,sc8280xp-lpasscc
+
+ reg:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 1
+
+ '#reset-cells':
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - '#clock-cells'
+ - '#reset-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,sc8280xp-lpasscc.h>
+ lpass_audiocc: clock-controller@32a9000 {
+ compatible = "qcom,sc8280xp-lpassaudiocc";
+ reg = <0x032a9000 0x1000>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
+
+ - |
+ #include <dt-bindings/clock/qcom,sc8280xp-lpasscc.h>
+ lpasscc: clock-controller@33e0000 {
+ compatible = "qcom,sc8280xp-lpasscc";
+ reg = <0x033e0000 0x12000>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,sdm845-camcc.yaml b/Documentation/devicetree/bindings/clock/qcom,sdm845-camcc.yaml
index 91d1f7918037..6214e41eec1f 100644
--- a/Documentation/devicetree/bindings/clock/qcom,sdm845-camcc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,sdm845-camcc.yaml
@@ -13,11 +13,18 @@ description: |
Qualcomm camera clock control module provides the clocks, resets and power
domains on SDM845.
- See also:: include/dt-bindings/clock/qcom,camcc-sm845.h
+ See also: include/dt-bindings/clock/qcom,camcc-sm845.h
+
+allOf:
+ - $ref: qcom,gcc.yaml#
properties:
compatible:
- const: qcom,sdm845-camcc
+ oneOf:
+ - items:
+ - const: qcom,sdm670-camcc
+ - const: qcom,sdm845-camcc
+ - const: qcom,sdm845-camcc
clocks:
items:
@@ -27,28 +34,15 @@ properties:
items:
- const: bi_tcxo
- '#clock-cells':
- const: 1
-
- '#reset-cells':
- const: 1
-
- '#power-domain-cells':
- const: 1
-
reg:
maxItems: 1
required:
- compatible
- - reg
- clocks
- clock-names
- - '#clock-cells'
- - '#reset-cells'
- - '#power-domain-cells'
-additionalProperties: false
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/clock/qcom,sdm845-dispcc.yaml b/Documentation/devicetree/bindings/clock/qcom,sdm845-dispcc.yaml
index 76b53ce64e40..854c391c8307 100644
--- a/Documentation/devicetree/bindings/clock/qcom,sdm845-dispcc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,sdm845-dispcc.yaml
@@ -7,13 +7,13 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Qualcomm Display Clock & Reset Controller on SDM845
maintainers:
- - Taniya Das <tdas@codeaurora.org>
+ - Taniya Das <quic_tdas@quicinc.com>
description: |
Qualcomm display clock control module provides the clocks, resets and power
domains on SDM845.
- See also:: include/dt-bindings/clock/qcom,dispcc-sdm845.h
+ See also: include/dt-bindings/clock/qcom,dispcc-sdm845.h
properties:
compatible:
@@ -46,28 +46,16 @@ properties:
- const: dp_link_clk_divsel_ten
- const: dp_vco_divided_clk_src_mux
- '#clock-cells':
- const: 1
-
- '#reset-cells':
- const: 1
-
- '#power-domain-cells':
- const: 1
-
- reg:
- maxItems: 1
-
required:
- compatible
- - reg
- clocks
- clock-names
- - '#clock-cells'
- - '#reset-cells'
- '#power-domain-cells'
-additionalProperties: false
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/clock/qcom,sdm845-lpasscc.yaml b/Documentation/devicetree/bindings/clock/qcom,sdm845-lpasscc.yaml
index a96fd837c70a..f9feb7049b21 100644
--- a/Documentation/devicetree/bindings/clock/qcom,sdm845-lpasscc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,sdm845-lpasscc.yaml
@@ -12,7 +12,7 @@ maintainers:
description: |
Qualcomm SDM845 LPASS (Low Power Audio SubSystem) Clock Controller.
- See also:: include/dt-bindings/clock/qcom,lpass-sdm845.h
+ See also: include/dt-bindings/clock/qcom,lpass-sdm845.h
properties:
compatible:
diff --git a/Documentation/devicetree/bindings/clock/qcom,sdx75-gcc.yaml b/Documentation/devicetree/bindings/clock/qcom,sdx75-gcc.yaml
new file mode 100644
index 000000000000..29a0b29bcb81
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,sdx75-gcc.yaml
@@ -0,0 +1,66 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,sdx75-gcc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Global Clock & Reset Controller on SDX75
+
+maintainers:
+ - Imran Shaik <quic_imrashai@quicinc.com>
+ - Taniya Das <quic_tdas@quicinc.com>
+
+description: |
+ Qualcomm global clock control module provides the clocks, resets and power
+ domains on SDX75
+
+ See also: include/dt-bindings/clock/qcom,sdx75-gcc.h
+
+properties:
+ compatible:
+ const: qcom,sdx75-gcc
+
+ clocks:
+ items:
+ - description: Board XO source
+ - description: Sleep clock source
+ - description: EMAC0 sgmiiphy mac rclk source
+ - description: EMAC0 sgmiiphy mac tclk source
+ - description: EMAC0 sgmiiphy rclk source
+ - description: EMAC0 sgmiiphy tclk source
+ - description: EMAC1 sgmiiphy mac rclk source
+ - description: EMAC1 sgmiiphy mac tclk source
+ - description: EMAC1 sgmiiphy rclk source
+ - description: EMAC1 sgmiiphy tclk source
+ - description: PCIE20 phy aux clock source
+ - description: PCIE_1 Pipe clock source
+ - description: PCIE_2 Pipe clock source
+ - description: PCIE Pipe clock source
+ - description: USB3 phy wrapper pipe clock source
+
+required:
+ - compatible
+ - clocks
+ - '#power-domain-cells'
+
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,rpmh.h>
+ clock-controller@80000 {
+ compatible = "qcom,sdx75-gcc";
+ reg = <0x80000 0x1f7400>;
+ clocks = <&rpmhcc RPMH_CXO_CLK>, <&sleep_clk>, <&emac0_sgmiiphy_mac_rclk>,
+ <&emac0_sgmiiphy_mac_tclk>, <&emac0_sgmiiphy_rclk>, <&emac0_sgmiiphy_tclk>,
+ <&emac1_sgmiiphy_mac_rclk>, <&emac1_sgmiiphy_mac_tclk>, <&emac1_sgmiiphy_rclk>,
+ <&emac1_sgmiiphy_tclk>, <&pcie20_phy_aux_clk>, <&pcie_1_pipe_clk>,
+ <&pcie_2_pipe_clk>, <&pcie_pipe_clk>, <&usb3_phy_wrapper_gcc_usb30_pipe_clk>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,sm4450-camcc.yaml b/Documentation/devicetree/bindings/clock/qcom,sm4450-camcc.yaml
new file mode 100644
index 000000000000..70f025b26736
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,sm4450-camcc.yaml
@@ -0,0 +1,51 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,sm4450-camcc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Camera Clock & Reset Controller on SM4450
+
+maintainers:
+ - Ajit Pandey <quic_ajipan@quicinc.com>
+ - Taniya Das <quic_tdas@quicinc.com>
+
+description: |
+ Qualcomm camera clock control module provides the clocks, resets and power
+ domains on SM4450
+
+ See also: include/dt-bindings/clock/qcom,sm4450-camcc.h
+
+properties:
+ compatible:
+ const: qcom,sm4450-camcc
+
+ clocks:
+ items:
+ - description: Board XO source
+ - description: Camera AHB clock source from GCC
+
+required:
+ - compatible
+ - clocks
+ - '#power-domain-cells'
+
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,rpmh.h>
+ #include <dt-bindings/clock/qcom,sm4450-gcc.h>
+ clock-controller@ade0000 {
+ compatible = "qcom,sm4450-camcc";
+ reg = <0x0ade0000 0x20000>;
+ clocks = <&rpmhcc RPMH_CXO_CLK>,
+ <&gcc GCC_CAMERA_AHB_CLK>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,sm4450-dispcc.yaml b/Documentation/devicetree/bindings/clock/qcom,sm4450-dispcc.yaml
new file mode 100644
index 000000000000..d977788bdc8a
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,sm4450-dispcc.yaml
@@ -0,0 +1,59 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,sm4450-dispcc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Display Clock & Reset Controller on SM4450
+
+maintainers:
+ - Ajit Pandey <quic_ajipan@quicinc.com>
+ - Taniya Das <quic_tdas@quicinc.com>
+
+description: |
+ Qualcomm display clock control module provides the clocks, resets and power
+ domains on SM4450
+
+ See also: include/dt-bindings/clock/qcom,sm4450-dispcc.h
+
+properties:
+ compatible:
+ const: qcom,sm4450-dispcc
+
+ clocks:
+ items:
+ - description: Board XO source
+ - description: Board active XO source
+ - description: Display AHB clock source from GCC
+ - description: sleep clock source
+ - description: Byte clock from DSI PHY0
+ - description: Pixel clock from DSI PHY0
+
+required:
+ - compatible
+ - clocks
+ - '#power-domain-cells'
+
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,rpmh.h>
+ #include <dt-bindings/clock/qcom,sm4450-gcc.h>
+ clock-controller@af00000 {
+ compatible = "qcom,sm4450-dispcc";
+ reg = <0x0af00000 0x20000>;
+ clocks = <&rpmhcc RPMH_CXO_CLK>,
+ <&rpmhcc RPMH_CXO_CLK_A>,
+ <&gcc GCC_DISP_AHB_CLK>,
+ <&sleep_clk>,
+ <&dsi0_phy_pll_out_byteclk>,
+ <&dsi0_phy_pll_out_dsiclk>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,sm4450-gcc.yaml b/Documentation/devicetree/bindings/clock/qcom,sm4450-gcc.yaml
new file mode 100644
index 000000000000..9cfe859bacc9
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,sm4450-gcc.yaml
@@ -0,0 +1,56 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,sm4450-gcc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Global Clock & Reset Controller on SM4450
+
+maintainers:
+ - Ajit Pandey <quic_ajipan@quicinc.com>
+ - Taniya Das <quic_tdas@quicinc.com>
+
+description: |
+ Qualcomm global clock control module provides the clocks, resets and power
+ domains on SM4450
+
+ See also: include/dt-bindings/clock/qcom,sm4450-gcc.h
+
+properties:
+ compatible:
+ const: qcom,sm4450-gcc
+
+ clocks:
+ items:
+ - description: Board XO source
+ - description: Sleep clock source
+ - description: UFS Phy Rx symbol 0 clock source
+ - description: UFS Phy Rx symbol 1 clock source
+ - description: UFS Phy Tx symbol 0 clock source
+ - description: USB3 Phy wrapper pipe clock source
+
+required:
+ - compatible
+ - clocks
+ - '#power-domain-cells'
+
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,rpmh.h>
+ clock-controller@100000 {
+ compatible = "qcom,sm4450-gcc";
+ reg = <0x00100000 0x001f4200>;
+ clocks = <&rpmhcc RPMH_CXO_CLK>, <&sleep_clk>,
+ <&ufs_mem_phy 0>, <&ufs_mem_phy 1>,
+ <&ufs_mem_phy 2>, <&usb_1_qmpphy>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,sm6115-dispcc.yaml b/Documentation/devicetree/bindings/clock/qcom,sm6115-dispcc.yaml
index f802a2e7f818..b31424306f49 100644
--- a/Documentation/devicetree/bindings/clock/qcom,sm6115-dispcc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,sm6115-dispcc.yaml
@@ -13,7 +13,7 @@ description: |
Qualcomm display clock control module provides the clocks and power domains
on SM6115.
- See also:: include/dt-bindings/clock/qcom,sm6115-dispcc.h
+ See also: include/dt-bindings/clock/qcom,sm6115-dispcc.h
properties:
compatible:
@@ -28,27 +28,15 @@ properties:
- description: Pixel clock from DSI PHY0
- description: GPLL0 DISP DIV clock from GCC
- '#clock-cells':
- const: 1
-
- '#reset-cells':
- const: 1
-
- '#power-domain-cells':
- const: 1
-
- reg:
- maxItems: 1
-
required:
- compatible
- - reg
- clocks
- - '#clock-cells'
- - '#reset-cells'
- '#power-domain-cells'
-additionalProperties: false
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/clock/qcom,sm6115-gpucc.yaml b/Documentation/devicetree/bindings/clock/qcom,sm6115-gpucc.yaml
index cf19f44af774..104ba10ca573 100644
--- a/Documentation/devicetree/bindings/clock/qcom,sm6115-gpucc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,sm6115-gpucc.yaml
@@ -7,13 +7,13 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Qualcomm Graphics Clock & Reset Controller on SM6115
maintainers:
- - Konrad Dybcio <konrad.dybcio@linaro.org>
+ - Konrad Dybcio <konradybcio@kernel.org>
description: |
Qualcomm graphics clock control module provides clocks, resets and power
domains on Qualcomm SoCs.
- See also:: include/dt-bindings/clock/qcom,sm6115-gpucc.h
+ See also: include/dt-bindings/clock/qcom,sm6115-gpucc.h
properties:
compatible:
diff --git a/Documentation/devicetree/bindings/clock/qcom,sm6115-lpasscc.yaml b/Documentation/devicetree/bindings/clock/qcom,sm6115-lpasscc.yaml
new file mode 100644
index 000000000000..8cbab3fbb660
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,sm6115-lpasscc.yaml
@@ -0,0 +1,46 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,sm6115-lpasscc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm LPASS Core & Audio Clock Controller on SM6115
+
+maintainers:
+ - Konrad Dybcio <konradybcio@kernel.org>
+ - Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
+
+description: |
+ Qualcomm LPASS core and audio clock controllers provide audio-related resets
+ on SM6115 and its derivatives.
+
+ See also::
+ include/dt-bindings/clock/qcom,sm6115-lpasscc.h
+
+properties:
+ compatible:
+ enum:
+ - qcom,sm6115-lpassaudiocc
+ - qcom,sm6115-lpasscc
+
+ reg:
+ maxItems: 1
+
+ '#reset-cells':
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - '#reset-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ lpass_audiocc: clock-controller@a6a9000 {
+ compatible = "qcom,sm6115-lpassaudiocc";
+ reg = <0x0a6a9000 0x1000>;
+ #reset-cells = <1>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,sm6125-gpucc.yaml b/Documentation/devicetree/bindings/clock/qcom,sm6125-gpucc.yaml
index 374a1844a159..12d6f0cdbcd8 100644
--- a/Documentation/devicetree/bindings/clock/qcom,sm6125-gpucc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,sm6125-gpucc.yaml
@@ -7,13 +7,13 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Qualcomm Graphics Clock & Reset Controller on SM6125
maintainers:
- - Konrad Dybcio <konrad.dybcio@linaro.org>
+ - Konrad Dybcio <konradybcio@kernel.org>
description: |
Qualcomm graphics clock control module provides clocks and power domains on
Qualcomm SoCs.
- See also:: include/dt-bindings/clock/qcom,sm6125-gpucc.h
+ See also: include/dt-bindings/clock/qcom,sm6125-gpucc.h
properties:
compatible:
diff --git a/Documentation/devicetree/bindings/clock/qcom,sm6350-camcc.yaml b/Documentation/devicetree/bindings/clock/qcom,sm6350-camcc.yaml
index fd6658cb793d..e31cd4300f7d 100644
--- a/Documentation/devicetree/bindings/clock/qcom,sm6350-camcc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,sm6350-camcc.yaml
@@ -7,17 +7,22 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Qualcomm Camera Clock & Reset Controller on SM6350
maintainers:
- - Konrad Dybcio <konrad.dybcio@linaro.org>
+ - Konrad Dybcio <konradybcio@kernel.org>
+ - Taniya Das <quic_tdas@quicinc.com>
description: |
Qualcomm camera clock control module provides the clocks, resets and power
- domains on SM6350.
+ domains on SM6350 and QCS615 SoC.
- See also:: include/dt-bindings/clock/qcom,sm6350-camcc.h
+ See also:
+ include/dt-bindings/clock/qcom,qcs615-camcc.h
+ include/dt-bindings/clock/qcom,sm6350-camcc.h
properties:
compatible:
- const: qcom,sm6350-camcc
+ enum:
+ - qcom,qcs615-camcc
+ - qcom,sm6350-camcc
clocks:
items:
diff --git a/Documentation/devicetree/bindings/clock/qcom,sm6375-dispcc.yaml b/Documentation/devicetree/bindings/clock/qcom,sm6375-dispcc.yaml
index 183b1c75dbdf..519ea76cb052 100644
--- a/Documentation/devicetree/bindings/clock/qcom,sm6375-dispcc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,sm6375-dispcc.yaml
@@ -7,13 +7,13 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Qualcomm Display Clock & Reset Controller on SM6375
maintainers:
- - Konrad Dybcio <konrad.dybcio@linaro.org>
+ - Konrad Dybcio <konradybcio@kernel.org>
description: |
Qualcomm display clock control module provides the clocks, resets and power
domains on SM6375.
- See also:: include/dt-bindings/clock/qcom,dispcc-sm6375.h
+ See also: include/dt-bindings/clock/qcom,dispcc-sm6375.h
allOf:
- $ref: qcom,gcc.yaml#
diff --git a/Documentation/devicetree/bindings/clock/qcom,sm6375-gcc.yaml b/Documentation/devicetree/bindings/clock/qcom,sm6375-gcc.yaml
index 295d4bb1a966..66dfa72fa975 100644
--- a/Documentation/devicetree/bindings/clock/qcom,sm6375-gcc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,sm6375-gcc.yaml
@@ -7,13 +7,13 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Qualcomm Global Clock & Reset Controller on SM6375
maintainers:
- - Konrad Dybcio <konrad.dybcio@somainline.org>
+ - Konrad Dybcio <konradybcio@kernel.org>
description: |
Qualcomm global clock control module provides the clocks, resets and power
domains on SM6375
- See also:: include/dt-bindings/clock/qcom,sm6375-gcc.h
+ See also: include/dt-bindings/clock/qcom,sm6375-gcc.h
allOf:
- $ref: qcom,gcc.yaml#
@@ -31,6 +31,7 @@ properties:
required:
- compatible
- clocks
+ - '#power-domain-cells'
unevaluatedProperties: false
diff --git a/Documentation/devicetree/bindings/clock/qcom,sm6375-gpucc.yaml b/Documentation/devicetree/bindings/clock/qcom,sm6375-gpucc.yaml
index b480ead5bd69..3aad6b5bb1c5 100644
--- a/Documentation/devicetree/bindings/clock/qcom,sm6375-gpucc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,sm6375-gpucc.yaml
@@ -7,13 +7,13 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Qualcomm Graphics Clock & Reset Controller on SM6375
maintainers:
- - Konrad Dybcio <konrad.dybcio@linaro.org>
+ - Konrad Dybcio <konradybcio@kernel.org>
description: |
Qualcomm graphics clock control module provides clocks, resets and power
domains on Qualcomm SoCs.
- See also:: include/dt-bindings/clock/qcom,sm6375-gpucc.h
+ See also: include/dt-bindings/clock/qcom,sm6375-gpucc.h
properties:
compatible:
@@ -27,9 +27,21 @@ properties:
- description: GPLL0 div branch source
- description: SNoC DVM GFX source
+ power-domains:
+ description:
+ A phandle and PM domain specifier for the VDD_GX power rail
+ maxItems: 1
+
+ required-opps:
+ description:
+ A phandle to an OPP node describing required VDD_GX performance point.
+ maxItems: 1
+
required:
- compatible
- clocks
+ - power-domains
+ - required-opps
allOf:
- $ref: qcom,gcc.yaml#
@@ -40,6 +52,7 @@ examples:
- |
#include <dt-bindings/clock/qcom,sm6375-gcc.h>
#include <dt-bindings/clock/qcom,rpmcc.h>
+ #include <dt-bindings/power/qcom-rpmpd.h>
soc {
#address-cells = <2>;
@@ -52,6 +65,8 @@ examples:
<&gcc GCC_GPU_GPLL0_CLK_SRC>,
<&gcc GCC_GPU_GPLL0_DIV_CLK_SRC>,
<&gcc GCC_GPU_SNOC_DVM_GFX_CLK>;
+ power-domains = <&rpmpd SM6375_VDDGX>;
+ required-opps = <&rpmpd_opp_low_svs>;
#clock-cells = <1>;
#reset-cells = <1>;
#power-domain-cells = <1>;
diff --git a/Documentation/devicetree/bindings/clock/qcom,sm7150-camcc.yaml b/Documentation/devicetree/bindings/clock/qcom,sm7150-camcc.yaml
new file mode 100644
index 000000000000..b96091c28c5a
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,sm7150-camcc.yaml
@@ -0,0 +1,60 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,sm7150-camcc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Camera Clock & Reset Controller on SM7150
+
+maintainers:
+ - Danila Tikhonov <danila@jiaxyga.com>
+ - David Wronek <david@mainlining.org>
+ - Jens Reidel <adrian@travitia.xyz>
+
+description: |
+ Qualcomm camera clock control module provides the clocks, resets and power
+ domains on SM7150.
+
+ See also: include/dt-bindings/clock/qcom,sm7150-camcc.h
+
+properties:
+ compatible:
+ const: qcom,sm7150-camcc
+
+ clocks:
+ items:
+ - description: Board XO source
+ - description: Board XO Active-Only source
+ - description: Sleep clock source
+
+ power-domains:
+ maxItems: 1
+ description:
+ CX power domain.
+
+required:
+ - compatible
+ - clocks
+ - power-domains
+
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,rpmh.h>
+ #include <dt-bindings/power/qcom,rpmhpd.h>
+ clock-controller@ad00000 {
+ compatible = "qcom,sm7150-camcc";
+ reg = <0xad00000 0x10000>;
+ clocks = <&rpmhcc RPMH_CXO_CLK>,
+ <&rpmhcc RPMH_CXO_CLK_A>,
+ <&sleep_clk>;
+ power-domains = <&rpmhpd RPMHPD_CX>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,sm7150-dispcc.yaml b/Documentation/devicetree/bindings/clock/qcom,sm7150-dispcc.yaml
new file mode 100644
index 000000000000..13ab3359b592
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,sm7150-dispcc.yaml
@@ -0,0 +1,75 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,sm7150-dispcc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Display Clock & Reset Controller for SM7150
+
+maintainers:
+ - Danila Tikhonov <danila@jiaxyga.com>
+ - David Wronek <david@mainlining.org>
+ - Jens Reidel <adrian@travitia.xyz>
+
+description: |
+ Qualcomm display clock control module provides the clocks, resets and power
+ domains on SM7150.
+
+ See also: include/dt-bindings/clock/qcom,sm7150-dispcc.h
+
+properties:
+ compatible:
+ const: qcom,sm7150-dispcc
+
+ clocks:
+ items:
+ - description: Board XO source
+ - description: Board Always On XO source
+ - description: GPLL0 source from GCC
+ - description: Sleep clock source
+ - description: Byte clock from MDSS DSI PHY0
+ - description: Pixel clock from MDSS DSI PHY0
+ - description: Byte clock from MDSS DSI PHY1
+ - description: Pixel clock from MDSS DSI PHY1
+ - description: Link clock from DP PHY
+ - description: VCO DIV clock from DP PHY
+
+ power-domains:
+ maxItems: 1
+ description:
+ CX power domain.
+
+required:
+ - compatible
+ - clocks
+ - power-domains
+
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,sm7150-gcc.h>
+ #include <dt-bindings/clock/qcom,rpmh.h>
+ #include <dt-bindings/power/qcom,rpmhpd.h>
+ clock-controller@af00000 {
+ compatible = "qcom,sm7150-dispcc";
+ reg = <0x0af00000 0x200000>;
+ clocks = <&rpmhcc RPMH_CXO_CLK>,
+ <&rpmhcc RPMH_CXO_CLK_A>,
+ <&gcc GCC_DISP_GPLL0_CLK_SRC>,
+ <&sleep_clk>,
+ <&mdss_dsi0_phy 0>,
+ <&mdss_dsi0_phy 1>,
+ <&mdss_dsi1_phy 0>,
+ <&mdss_dsi1_phy 1>,
+ <&dp_phy 0>,
+ <&dp_phy 1>;
+ power-domains = <&rpmhpd RPMHPD_CX>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,sm7150-gcc.yaml b/Documentation/devicetree/bindings/clock/qcom,sm7150-gcc.yaml
index 0eb76d9d51c4..3878808f811e 100644
--- a/Documentation/devicetree/bindings/clock/qcom,sm7150-gcc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,sm7150-gcc.yaml
@@ -15,7 +15,7 @@ description: |
Qualcomm global clock control module provides the clocks, resets and power
domains on SM7150
- See also:: include/dt-bindings/clock/qcom,sm7150-gcc.h
+ See also: include/dt-bindings/clock/qcom,sm7150-gcc.h
properties:
compatible:
@@ -30,6 +30,7 @@ properties:
required:
- compatible
- clocks
+ - '#power-domain-cells'
allOf:
- $ref: qcom,gcc.yaml#
diff --git a/Documentation/devicetree/bindings/clock/qcom,sm7150-videocc.yaml b/Documentation/devicetree/bindings/clock/qcom,sm7150-videocc.yaml
new file mode 100644
index 000000000000..9f7928730386
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,sm7150-videocc.yaml
@@ -0,0 +1,58 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,sm7150-videocc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Video Clock & Reset Controller on SM7150
+
+maintainers:
+ - Danila Tikhonov <danila@jiaxyga.com>
+ - David Wronek <david@mainlining.org>
+ - Jens Reidel <adrian@travitia.xyz>
+
+description: |
+ Qualcomm video clock control module provides the clocks, resets and power
+ domains on SM7150.
+
+ See also: include/dt-bindings/clock/qcom,videocc-sm7150.h
+
+properties:
+ compatible:
+ const: qcom,sm7150-videocc
+
+ clocks:
+ items:
+ - description: Board XO source
+ - description: Board Always On XO source
+
+ power-domains:
+ maxItems: 1
+ description:
+ CX power domain.
+
+required:
+ - compatible
+ - clocks
+ - power-domains
+
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,rpmh.h>
+ #include <dt-bindings/power/qcom,rpmhpd.h>
+ videocc: clock-controller@ab00000 {
+ compatible = "qcom,sm7150-videocc";
+ reg = <0x0ab00000 0x10000>;
+ clocks = <&rpmhcc RPMH_CXO_CLK>,
+ <&rpmhcc RPMH_CXO_CLK_A>;
+ power-domains = <&rpmhpd RPMHPD_CX>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,sm8150-camcc.yaml b/Documentation/devicetree/bindings/clock/qcom,sm8150-camcc.yaml
new file mode 100644
index 000000000000..a55e30a4975e
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,sm8150-camcc.yaml
@@ -0,0 +1,65 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,sm8150-camcc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Camera Clock & Reset Controller on SM8150
+
+maintainers:
+ - Satya Priya Kakitapalli <quic_skakitap@quicinc.com>
+
+description: |
+ Qualcomm camera clock control module provides the clocks, resets and
+ power domains on SM8150.
+
+ See also: include/dt-bindings/clock/qcom,sm8150-camcc.h
+
+properties:
+ compatible:
+ const: qcom,sm8150-camcc
+
+ clocks:
+ items:
+ - description: Board XO source
+ - description: Camera AHB clock from GCC
+
+ power-domains:
+ maxItems: 1
+ description:
+ A phandle and PM domain specifier for the MMCX power domain.
+
+ required-opps:
+ maxItems: 1
+ description:
+ A phandle to an OPP node describing required MMCX performance point.
+
+required:
+ - compatible
+ - clocks
+ - power-domains
+ - required-opps
+ - '#power-domain-cells'
+
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,gcc-sm8150.h>
+ #include <dt-bindings/clock/qcom,rpmh.h>
+ #include <dt-bindings/power/qcom-rpmpd.h>
+ clock-controller@ad00000 {
+ compatible = "qcom,sm8150-camcc";
+ reg = <0x0ad00000 0x10000>;
+ clocks = <&rpmhcc RPMH_CXO_CLK>,
+ <&gcc GCC_CAMERA_AHB_CLK>;
+ power-domains = <&rpmhpd SM8150_MMCX>;
+ required-opps = <&rpmhpd_opp_low_svs>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,sm8350-videocc.yaml b/Documentation/devicetree/bindings/clock/qcom,sm8350-videocc.yaml
new file mode 100644
index 000000000000..5c2ecec0624e
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,sm8350-videocc.yaml
@@ -0,0 +1,70 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,sm8350-videocc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm SM8350 Video Clock & Reset Controller
+
+maintainers:
+ - Konrad Dybcio <konradybcio@kernel.org>
+
+description: |
+ Qualcomm video clock control module provides the clocks, resets and power
+ domains on Qualcomm SoCs.
+
+ See also::
+ include/dt-bindings/clock/qcom,videocc-sm8350.h
+ include/dt-bindings/reset/qcom,videocc-sm8350.h
+
+properties:
+ compatible:
+ enum:
+ - qcom,sc8280xp-videocc
+ - qcom,sm8350-videocc
+
+ clocks:
+ items:
+ - description: Board XO source
+ - description: Board active XO source
+ - description: Board sleep clock
+
+ power-domains:
+ description:
+ A phandle and PM domain specifier for the MMCX power domain.
+ maxItems: 1
+
+ required-opps:
+ description:
+ A phandle to an OPP node describing required MMCX performance point.
+ maxItems: 1
+
+required:
+ - compatible
+ - clocks
+ - power-domains
+ - required-opps
+
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,rpmh.h>
+ #include <dt-bindings/power/qcom,rpmhpd.h>
+
+ clock-controller@abf0000 {
+ compatible = "qcom,sm8350-videocc";
+ reg = <0x0abf0000 0x10000>;
+ clocks = <&rpmhcc RPMH_CXO_CLK>,
+ <&rpmhcc RPMH_CXO_CLK_A>,
+ <&sleep_clk>;
+ power-domains = <&rpmhpd RPMHPD_MMCX>;
+ required-opps = <&rpmhpd_opp_low_svs>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,sm8450-camcc.yaml b/Documentation/devicetree/bindings/clock/qcom,sm8450-camcc.yaml
index 87ae74166807..c1e06f39431e 100644
--- a/Documentation/devicetree/bindings/clock/qcom,sm8450-camcc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,sm8450-camcc.yaml
@@ -8,16 +8,24 @@ title: Qualcomm Camera Clock & Reset Controller on SM8450
maintainers:
- Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
+ - Jagadeesh Kona <quic_jkona@quicinc.com>
description: |
Qualcomm camera clock control module provides the clocks, resets and power
domains on SM8450.
- See also:: include/dt-bindings/clock/qcom,sm8450-camcc.h
+ See also:
+ include/dt-bindings/clock/qcom,sm8450-camcc.h
+ include/dt-bindings/clock/qcom,sm8550-camcc.h
+ include/dt-bindings/clock/qcom,sm8650-camcc.h
properties:
compatible:
- const: qcom,sm8450-camcc
+ enum:
+ - qcom,sm8450-camcc
+ - qcom,sm8475-camcc
+ - qcom,sm8550-camcc
+ - qcom,sm8650-camcc
clocks:
items:
@@ -27,44 +35,48 @@ properties:
- description: Sleep clock source
power-domains:
- maxItems: 1
description:
- A phandle and PM domain specifier for the MMCX power domain.
+ Power domains required for the clock controller to operate
+ items:
+ - description: MMCX power domain
+ - description: MXC power domain
required-opps:
- maxItems: 1
description:
- A phandle to an OPP node describing required MMCX performance point.
-
- '#clock-cells':
- const: 1
-
- '#reset-cells':
- const: 1
-
- '#power-domain-cells':
- const: 1
+ OPP nodes that describe required performance points on power domains
+ items:
+ - description: MMCX performance point
+ - description: MXC performance point
reg:
maxItems: 1
required:
- compatible
- - reg
- clocks
- power-domains
- - required-opps
- - '#clock-cells'
- - '#reset-cells'
- - '#power-domain-cells'
-additionalProperties: false
+allOf:
+ - $ref: qcom,gcc.yaml#
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,sc8280xp-camcc
+ - qcom,sm8450-camcc
+ - qcom,sm8550-camcc
+ then:
+ required:
+ - required-opps
+
+unevaluatedProperties: false
examples:
- |
#include <dt-bindings/clock/qcom,gcc-sm8450.h>
#include <dt-bindings/clock/qcom,rpmh.h>
- #include <dt-bindings/power/qcom-rpmpd.h>
+ #include <dt-bindings/power/qcom,rpmhpd.h>
clock-controller@ade0000 {
compatible = "qcom,sm8450-camcc";
reg = <0xade0000 0x20000>;
@@ -72,8 +84,10 @@ examples:
<&rpmhcc RPMH_CXO_CLK>,
<&rpmhcc RPMH_CXO_CLK_A>,
<&sleep_clk>;
- power-domains = <&rpmhpd SM8450_MMCX>;
- required-opps = <&rpmhpd_opp_low_svs>;
+ power-domains = <&rpmhpd RPMHPD_MMCX>,
+ <&rpmhpd RPMHPD_MXC>;
+ required-opps = <&rpmhpd_opp_low_svs>,
+ <&rpmhpd_opp_low_svs>;
#clock-cells = <1>;
#reset-cells = <1>;
#power-domain-cells = <1>;
diff --git a/Documentation/devicetree/bindings/clock/qcom,sm8450-dispcc.yaml b/Documentation/devicetree/bindings/clock/qcom,sm8450-dispcc.yaml
index 1dd1f696dcd3..bd131a1ff165 100644
--- a/Documentation/devicetree/bindings/clock/qcom,sm8450-dispcc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,sm8450-dispcc.yaml
@@ -13,12 +13,13 @@ description: |
Qualcomm display clock control module provides the clocks, resets and power
domains on SM8450.
- See also:: include/dt-bindings/clock/qcom,sm8450-dispcc.h
+ See also: include/dt-bindings/clock/qcom,sm8450-dispcc.h
properties:
compatible:
enum:
- qcom,sm8450-dispcc
+ - qcom,sm8475-dispcc
clocks:
minItems: 3
@@ -40,18 +41,6 @@ properties:
- description: Link clock from DP PHY3
- description: VCO DIV clock from DP PHY3
- '#clock-cells':
- const: 1
-
- '#reset-cells':
- const: 1
-
- '#power-domain-cells':
- const: 1
-
- reg:
- maxItems: 1
-
power-domains:
description:
A phandle and PM domain specifier for the MMCX power domain.
@@ -64,19 +53,19 @@ properties:
required:
- compatible
- - reg
- clocks
- - '#clock-cells'
- - '#reset-cells'
- '#power-domain-cells'
-additionalProperties: false
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
examples:
- |
#include <dt-bindings/clock/qcom,gcc-sm8450.h>
#include <dt-bindings/clock/qcom,rpmh.h>
- #include <dt-bindings/power/qcom-rpmpd.h>
+ #include <dt-bindings/power/qcom,rpmhpd.h>
clock-controller@af00000 {
compatible = "qcom,sm8450-dispcc";
reg = <0x0af00000 0x10000>;
@@ -91,7 +80,7 @@ examples:
#clock-cells = <1>;
#reset-cells = <1>;
#power-domain-cells = <1>;
- power-domains = <&rpmhpd SM8450_MMCX>;
+ power-domains = <&rpmhpd RPMHPD_MMCX>;
required-opps = <&rpmhpd_opp_low_svs>;
};
...
diff --git a/Documentation/devicetree/bindings/clock/qcom,sm8450-gpucc.yaml b/Documentation/devicetree/bindings/clock/qcom,sm8450-gpucc.yaml
new file mode 100644
index 000000000000..44380f6f8136
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,sm8450-gpucc.yaml
@@ -0,0 +1,75 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,sm8450-gpucc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Graphics Clock & Reset Controller on SM8450
+
+maintainers:
+ - Konrad Dybcio <konradybcio@kernel.org>
+
+description: |
+ Qualcomm graphics clock control module provides the clocks, resets and power
+ domains on Qualcomm SoCs.
+
+ See also::
+ include/dt-bindings/clock/qcom,milos-gpucc.h
+ include/dt-bindings/clock/qcom,sar2130p-gpucc.h
+ include/dt-bindings/clock/qcom,sm4450-gpucc.h
+ include/dt-bindings/clock/qcom,sm8450-gpucc.h
+ include/dt-bindings/clock/qcom,sm8550-gpucc.h
+ include/dt-bindings/reset/qcom,sm8450-gpucc.h
+ include/dt-bindings/reset/qcom,sm8650-gpucc.h
+ include/dt-bindings/reset/qcom,x1e80100-gpucc.h
+
+properties:
+ compatible:
+ enum:
+ - qcom,milos-gpucc
+ - qcom,sar2130p-gpucc
+ - qcom,sm4450-gpucc
+ - qcom,sm8450-gpucc
+ - qcom,sm8475-gpucc
+ - qcom,sm8550-gpucc
+ - qcom,sm8650-gpucc
+ - qcom,x1e80100-gpucc
+ - qcom,x1p42100-gpucc
+
+ clocks:
+ items:
+ - description: Board XO source
+ - description: GPLL0 main branch source
+ - description: GPLL0 div branch source
+
+required:
+ - compatible
+ - clocks
+ - '#power-domain-cells'
+
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,gcc-sm8450.h>
+ #include <dt-bindings/clock/qcom,rpmh.h>
+
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ clock-controller@3d90000 {
+ compatible = "qcom,sm8450-gpucc";
+ reg = <0 0x03d90000 0 0xa000>;
+ clocks = <&rpmhcc RPMH_CXO_CLK>,
+ <&gcc GCC_GPU_GPLL0_CLK_SRC>,
+ <&gcc GCC_GPU_GPLL0_DIV_CLK_SRC>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,sm8450-videocc.yaml b/Documentation/devicetree/bindings/clock/qcom,sm8450-videocc.yaml
new file mode 100644
index 000000000000..b31bd8335529
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,sm8450-videocc.yaml
@@ -0,0 +1,91 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,sm8450-videocc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Video Clock & Reset Controller on SM8450
+
+maintainers:
+ - Taniya Das <taniya.das@oss.qualcomm.com>
+ - Jagadeesh Kona <quic_jkona@quicinc.com>
+
+description: |
+ Qualcomm video clock control module provides the clocks, resets and power
+ domains on SM8450.
+
+ See also:
+ include/dt-bindings/clock/qcom,sm8450-videocc.h
+ include/dt-bindings/clock/qcom,sm8650-videocc.h
+ include/dt-bindings/clock/qcom,sm8750-videocc.h
+
+properties:
+ compatible:
+ enum:
+ - qcom,sm8450-videocc
+ - qcom,sm8475-videocc
+ - qcom,sm8550-videocc
+ - qcom,sm8650-videocc
+ - qcom,sm8750-videocc
+ - qcom,x1e80100-videocc
+
+ clocks:
+ items:
+ - description: Board XO source
+ - description: Video AHB clock from GCC
+
+ power-domains:
+ description:
+ Power domains required for the clock controller to operate
+ items:
+ - description: MMCX power domain
+ - description: MXC power domain
+
+ required-opps:
+ description:
+ OPP nodes that describe required performance points on power domains
+ items:
+ - description: MMCX performance point
+ - description: MXC performance point
+
+required:
+ - compatible
+ - clocks
+ - power-domains
+ - '#power-domain-cells'
+
+allOf:
+ - $ref: qcom,gcc.yaml#
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,sm8450-videocc
+ - qcom,sm8550-videocc
+ - qcom,sm8750-videocc
+ then:
+ required:
+ - required-opps
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,gcc-sm8450.h>
+ #include <dt-bindings/clock/qcom,rpmh.h>
+ #include <dt-bindings/power/qcom,rpmhpd.h>
+ videocc: clock-controller@aaf0000 {
+ compatible = "qcom,sm8450-videocc";
+ reg = <0x0aaf0000 0x10000>;
+ clocks = <&rpmhcc RPMH_CXO_CLK>,
+ <&gcc GCC_VIDEO_AHB_CLK>;
+ power-domains = <&rpmhpd RPMHPD_MMCX>,
+ <&rpmhpd RPMHPD_MXC>;
+ required-opps = <&rpmhpd_opp_low_svs>,
+ <&rpmhpd_opp_low_svs>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,sm8550-dispcc.yaml b/Documentation/devicetree/bindings/clock/qcom,sm8550-dispcc.yaml
index ab25f7cbaa2e..30e4b4631575 100644
--- a/Documentation/devicetree/bindings/clock/qcom,sm8550-dispcc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,sm8550-dispcc.yaml
@@ -12,14 +12,22 @@ maintainers:
description: |
Qualcomm display clock control module provides the clocks, resets and power
- domains on SM8550.
+ domains on SM8550, SM8650, SM8750 and few other platforms.
- See also:: include/dt-bindings/clock/qcom,sm8550-dispcc.h
+ See also:
+ - include/dt-bindings/clock/qcom,sm8550-dispcc.h
+ - include/dt-bindings/clock/qcom,sm8650-dispcc.h
+ - include/dt-bindings/clock/qcom,sm8750-dispcc.h
+ - include/dt-bindings/clock/qcom,x1e80100-dispcc.h
properties:
compatible:
enum:
+ - qcom,sar2130p-dispcc
- qcom,sm8550-dispcc
+ - qcom,sm8650-dispcc
+ - qcom,sm8750-dispcc
+ - qcom,x1e80100-dispcc
clocks:
items:
@@ -40,18 +48,6 @@ properties:
- description: Link clock from DP PHY3
- description: VCO DIV clock from DP PHY3
- '#clock-cells':
- const: 1
-
- '#reset-cells':
- const: 1
-
- '#power-domain-cells':
- const: 1
-
- reg:
- maxItems: 1
-
power-domains:
description:
A phandle and PM domain specifier for the MMCX power domain.
@@ -64,19 +60,19 @@ properties:
required:
- compatible
- - reg
- clocks
- - '#clock-cells'
- - '#reset-cells'
- '#power-domain-cells'
-additionalProperties: false
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
examples:
- |
#include <dt-bindings/clock/qcom,sm8550-gcc.h>
#include <dt-bindings/clock/qcom,rpmh.h>
- #include <dt-bindings/power/qcom-rpmpd.h>
+ #include <dt-bindings/power/qcom,rpmhpd.h>
clock-controller@af00000 {
compatible = "qcom,sm8550-dispcc";
reg = <0x0af00000 0x10000>;
@@ -99,7 +95,7 @@ examples:
#clock-cells = <1>;
#reset-cells = <1>;
#power-domain-cells = <1>;
- power-domains = <&rpmhpd SM8550_MMCX>;
+ power-domains = <&rpmhpd RPMHPD_MMCX>;
required-opps = <&rpmhpd_opp_low_svs>;
};
...
diff --git a/Documentation/devicetree/bindings/clock/qcom,sm8550-gcc.yaml b/Documentation/devicetree/bindings/clock/qcom,sm8550-gcc.yaml
index 0c706de31cf1..c4e9b9bb63f5 100644
--- a/Documentation/devicetree/bindings/clock/qcom,sm8550-gcc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,sm8550-gcc.yaml
@@ -13,7 +13,7 @@ description: |
Qualcomm global clock control module provides the clocks, resets and power
domains on SM8550
- See also:: include/dt-bindings/clock/qcom,sm8550-gcc.h
+ See also: include/dt-bindings/clock/qcom,sm8550-gcc.h
properties:
compatible:
@@ -34,6 +34,7 @@ properties:
required:
- compatible
- clocks
+ - '#power-domain-cells'
allOf:
- $ref: qcom,gcc.yaml#
diff --git a/Documentation/devicetree/bindings/clock/qcom,sm8550-tcsr.yaml b/Documentation/devicetree/bindings/clock/qcom,sm8550-tcsr.yaml
index 1bf1a41fd89c..784fef830681 100644
--- a/Documentation/devicetree/bindings/clock/qcom,sm8550-tcsr.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,sm8550-tcsr.yaml
@@ -8,17 +8,30 @@ title: Qualcomm TCSR Clock Controller on SM8550
maintainers:
- Bjorn Andersson <andersson@kernel.org>
+ - Taniya Das <taniya.das@oss.qualcomm.com>
description: |
Qualcomm TCSR clock control module provides the clocks, resets and
power domains on SM8550
- See also:: include/dt-bindings/clock/qcom,sm8550-tcsr.h
+ See also:
+ - include/dt-bindings/clock/qcom,glymur-tcsr.h
+ - include/dt-bindings/clock/qcom,sm8550-tcsr.h
+ - include/dt-bindings/clock/qcom,sm8650-tcsr.h
+ - include/dt-bindings/clock/qcom,sm8750-tcsr.h
properties:
compatible:
items:
- - const: qcom,sm8550-tcsr
+ - enum:
+ - qcom,glymur-tcsr
+ - qcom,kaanapali-tcsr
+ - qcom,milos-tcsr
+ - qcom,sar2130p-tcsr
+ - qcom,sm8550-tcsr
+ - qcom,sm8650-tcsr
+ - qcom,sm8750-tcsr
+ - qcom,x1e80100-tcsr
- const: syscon
clocks:
diff --git a/Documentation/devicetree/bindings/clock/qcom,sm8650-gcc.yaml b/Documentation/devicetree/bindings/clock/qcom,sm8650-gcc.yaml
new file mode 100644
index 000000000000..c7143e2abc80
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,sm8650-gcc.yaml
@@ -0,0 +1,66 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,sm8650-gcc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Global Clock & Reset Controller on SM8650
+
+maintainers:
+ - Bjorn Andersson <andersson@kernel.org>
+
+description: |
+ Qualcomm global clock control module provides the clocks, resets and power
+ domains on SM8650
+
+ See also: include/dt-bindings/clock/qcom,sm8650-gcc.h
+
+properties:
+ compatible:
+ const: qcom,sm8650-gcc
+
+ clocks:
+ items:
+ - description: Board XO source
+ - description: Board Always On XO source
+ - description: Sleep clock source
+ - description: PCIE 0 Pipe clock source
+ - description: PCIE 1 Pipe clock source
+ - description: PCIE 1 Phy Auxiliary clock source
+ - description: UFS Phy Rx symbol 0 clock source
+ - description: UFS Phy Rx symbol 1 clock source
+ - description: UFS Phy Tx symbol 0 clock source
+ - description: USB3 Phy wrapper pipe clock source
+
+required:
+ - compatible
+ - clocks
+ - '#power-domain-cells'
+
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,rpmh.h>
+ clock-controller@100000 {
+ compatible = "qcom,sm8650-gcc";
+ reg = <0x00100000 0x001f4200>;
+ clocks = <&rpmhcc RPMH_CXO_CLK>,
+ <&rpmhcc RPMH_CXO_CLK_A>,
+ <&sleep_clk>,
+ <&pcie0_phy>,
+ <&pcie1_phy>,
+ <&pcie_1_phy_aux_clk>,
+ <&ufs_mem_phy 0>,
+ <&ufs_mem_phy 1>,
+ <&ufs_mem_phy 2>,
+ <&usb_1_qmpphy>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,sm8750-gcc.yaml b/Documentation/devicetree/bindings/clock/qcom,sm8750-gcc.yaml
new file mode 100644
index 000000000000..0114d347b26f
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,sm8750-gcc.yaml
@@ -0,0 +1,66 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,sm8750-gcc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Global Clock & Reset Controller on SM8750
+
+maintainers:
+ - Taniya Das <quic_tdas@quicinc.com>
+
+description: |
+ Qualcomm global clock control module provides the clocks, resets and power
+ domains on SM8750
+
+ See also:
+ include/dt-bindings/clock/qcom,kaanapali-gcc.h
+ include/dt-bindings/clock/qcom,sm8750-gcc.h
+
+properties:
+ compatible:
+ enum:
+ - qcom,kaanapali-gcc
+ - qcom,sm8750-gcc
+
+ clocks:
+ items:
+ - description: Board XO source
+ - description: Board Always On XO source
+ - description: Sleep clock source
+ - description: PCIE 0 Pipe clock source
+ - description: UFS Phy Rx symbol 0 clock source
+ - description: UFS Phy Rx symbol 1 clock source
+ - description: UFS Phy Tx symbol 0 clock source
+ - description: USB3 Phy wrapper pipe clock source
+
+required:
+ - compatible
+ - clocks
+ - '#power-domain-cells'
+
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,rpmh.h>
+ clock-controller@100000 {
+ compatible = "qcom,sm8750-gcc";
+ reg = <0x00100000 0x001f4200>;
+ clocks = <&rpmhcc RPMH_CXO_CLK>,
+ <&rpmhcc RPMH_CXO_CLK_A>,
+ <&sleep_clk>,
+ <&pcie0_phy>,
+ <&ufs_mem_phy 0>,
+ <&ufs_mem_phy 1>,
+ <&ufs_mem_phy 2>,
+ <&usb_1_qmpphy>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,turingcc.txt b/Documentation/devicetree/bindings/clock/qcom,turingcc.txt
deleted file mode 100644
index 126517de5f9a..000000000000
--- a/Documentation/devicetree/bindings/clock/qcom,turingcc.txt
+++ /dev/null
@@ -1,19 +0,0 @@
-Qualcomm Turing Clock & Reset Controller Binding
-------------------------------------------------
-
-Required properties :
-- compatible: shall contain "qcom,qcs404-turingcc".
-- reg: shall contain base register location and length.
-- clocks: ahb clock for the TuringCC
-- #clock-cells: from common clock binding, shall contain 1.
-- #reset-cells: from common reset binding, shall contain 1.
-
-Example:
- turingcc: clock-controller@800000 {
- compatible = "qcom,qcs404-turingcc";
- reg = <0x00800000 0x30000>;
- clocks = <&gcc GCC_CDSP_CFG_AHB_CLK>;
-
- #clock-cells = <1>;
- #reset-cells = <1>;
- };
diff --git a/Documentation/devicetree/bindings/clock/qcom,videocc.yaml b/Documentation/devicetree/bindings/clock/qcom,videocc.yaml
index 2b07146161b4..f4ff9acef9d5 100644
--- a/Documentation/devicetree/bindings/clock/qcom,videocc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,videocc.yaml
@@ -7,13 +7,14 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Qualcomm Video Clock & Reset Controller
maintainers:
- - Taniya Das <tdas@codeaurora.org>
+ - Taniya Das <quic_tdas@quicinc.com>
description: |
Qualcomm video clock control module provides the clocks, resets and power
domains on Qualcomm SoCs.
See also::
+ include/dt-bindings/clock/qcom,sm6350-videocc.h
include/dt-bindings/clock/qcom,videocc-sc7180.h
include/dt-bindings/clock/qcom,videocc-sc7280.h
include/dt-bindings/clock/qcom,videocc-sdm845.h
@@ -22,12 +23,17 @@ description: |
properties:
compatible:
- enum:
- - qcom,sc7180-videocc
- - qcom,sc7280-videocc
- - qcom,sdm845-videocc
- - qcom,sm8150-videocc
- - qcom,sm8250-videocc
+ oneOf:
+ - enum:
+ - qcom,sc7180-videocc
+ - qcom,sc7280-videocc
+ - qcom,sdm845-videocc
+ - qcom,sm6350-videocc
+ - qcom,sm8150-videocc
+ - qcom,sm8250-videocc
+ - items:
+ - const: qcom,sc8180x-videocc
+ - const: qcom,sm8150-videocc
clocks:
minItems: 1
@@ -37,18 +43,6 @@ properties:
minItems: 1
maxItems: 3
- '#clock-cells':
- const: 1
-
- '#reset-cells':
- const: 1
-
- '#power-domain-cells':
- const: 1
-
- reg:
- maxItems: 1
-
power-domains:
description:
A phandle and PM domain specifier for the MMCX power domain.
@@ -61,21 +55,19 @@ properties:
required:
- compatible
- - reg
- clocks
- clock-names
- - '#clock-cells'
- - '#reset-cells'
- '#power-domain-cells'
allOf:
+ - $ref: qcom,gcc.yaml#
+
- if:
properties:
compatible:
enum:
- qcom,sc7180-videocc
- qcom,sdm845-videocc
- - qcom,sm8150-videocc
then:
properties:
clocks:
@@ -105,6 +97,41 @@ allOf:
properties:
compatible:
enum:
+ - qcom,sm6350-videocc
+ then:
+ properties:
+ clocks:
+ items:
+ - description: Video AHB clock from GCC
+ - description: Board XO source
+ - description: Sleep Clock source
+ clock-names:
+ items:
+ - const: iface
+ - const: bi_tcxo
+ - const: sleep_clk
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,sm8150-videocc
+ then:
+ properties:
+ clocks:
+ items:
+ - description: AHB
+ - description: Board XO source
+ clock-names:
+ items:
+ - const: iface
+ - const: bi_tcxo
+
+ - if:
+ properties:
+ compatible:
+ enum:
- qcom,sm8250-videocc
then:
properties:
@@ -119,12 +146,12 @@ allOf:
- const: bi_tcxo
- const: bi_tcxo_ao
-additionalProperties: false
+unevaluatedProperties: false
examples:
- |
#include <dt-bindings/clock/qcom,rpmh.h>
- #include <dt-bindings/power/qcom-rpmpd.h>
+ #include <dt-bindings/power/qcom,rpmhpd.h>
clock-controller@ab00000 {
compatible = "qcom,sdm845-videocc";
reg = <0x0ab00000 0x10000>;
@@ -133,7 +160,7 @@ examples:
#clock-cells = <1>;
#reset-cells = <1>;
#power-domain-cells = <1>;
- power-domains = <&rpmhpd SM8250_MMCX>;
+ power-domains = <&rpmhpd RPMHPD_MMCX>;
required-opps = <&rpmhpd_opp_low_svs>;
};
...
diff --git a/Documentation/devicetree/bindings/clock/qcom,x1e80100-camcc.yaml b/Documentation/devicetree/bindings/clock/qcom,x1e80100-camcc.yaml
new file mode 100644
index 000000000000..938a2f1ff3fc
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,x1e80100-camcc.yaml
@@ -0,0 +1,75 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,x1e80100-camcc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Camera Clock & Reset Controller on x1e80100
+
+maintainers:
+ - Bryan O'Donoghue <bryan.odonoghue@linaro.org>
+
+description: |
+ Qualcomm camera clock control module provides the clocks, resets and power
+ domains on x1e80100.
+
+ See also:
+ include/dt-bindings/clock/qcom,x1e80100-camcc.h
+
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+properties:
+ compatible:
+ enum:
+ - qcom,x1e80100-camcc
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: Camera AHB clock from GCC
+ - description: Board XO source
+ - description: Board active XO source
+ - description: Sleep clock source
+
+ power-domains:
+ items:
+ - description: A phandle to the MXC power-domain
+ - description: A phandle to the MMCX power-domain
+
+ required-opps:
+ items:
+ - description: A phandle to an OPP node describing MXC performance points
+ - description: A phandle to an OPP node describing MMCX performance points
+
+required:
+ - compatible
+ - clocks
+ - power-domains
+ - required-opps
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,x1e80100-gcc.h>
+ #include <dt-bindings/clock/qcom,rpmh.h>
+ #include <dt-bindings/power/qcom,rpmhpd.h>
+ clock-controller@ade0000 {
+ compatible = "qcom,x1e80100-camcc";
+ reg = <0xade0000 0x20000>;
+ clocks = <&gcc GCC_CAMERA_AHB_CLK>,
+ <&rpmhcc RPMH_CXO_CLK>,
+ <&rpmhcc RPMH_CXO_CLK_A>,
+ <&sleep_clk>;
+ power-domains = <&rpmhpd RPMHPD_MXC>,
+ <&rpmhpd RPMHPD_MMCX>;
+ required-opps = <&rpmhpd_opp_low_svs>,
+ <&rpmhpd_opp_low_svs>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,x1e80100-gcc.yaml b/Documentation/devicetree/bindings/clock/qcom,x1e80100-gcc.yaml
new file mode 100644
index 000000000000..1b15b5070954
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,x1e80100-gcc.yaml
@@ -0,0 +1,131 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,x1e80100-gcc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Global Clock & Reset Controller on X1E80100
+
+maintainers:
+ - Rajendra Nayak <quic_rjendra@quicinc.com>
+
+description: |
+ Qualcomm global clock control module provides the clocks, resets and power
+ domains on X1E80100
+
+ See also: include/dt-bindings/clock/qcom,x1e80100-gcc.h
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - const: qcom,x1p42100-gcc
+ - const: qcom,x1e80100-gcc
+ - const: qcom,x1e80100-gcc
+
+ clocks:
+ items:
+ - description: Board XO source
+ - description: Sleep clock source
+ - description: PCIe 3 pipe clock
+ - description: PCIe 4 pipe clock
+ - description: PCIe 5 pipe clock
+ - description: PCIe 6a pipe clock
+ - description: PCIe 6b pipe clock
+ - description: USB4_0 QMPPHY clock source
+ - description: USB4_1 QMPPHY clock source
+ - description: USB4_2 QMPPHY clock source
+ - description: USB4_0 PHY DP0 GMUX clock source
+ - description: USB4_0 PHY DP1 GMUX clock source
+ - description: USB4_0 PHY PCIE PIPEGMUX clock source
+ - description: USB4_0 PHY PIPEGMUX clock source
+ - description: USB4_0 PHY SYS PCIE PIPEGMUX clock source
+ - description: USB4_1 PHY DP0 GMUX 2 clock source
+ - description: USB4_1 PHY DP1 GMUX 2 clock source
+ - description: USB4_1 PHY PCIE PIPEGMUX clock source
+ - description: USB4_1 PHY PIPEGMUX clock source
+ - description: USB4_1 PHY SYS PCIE PIPEGMUX clock source
+ - description: USB4_2 PHY DP0 GMUX 2 clock source
+ - description: USB4_2 PHY DP1 GMUX 2 clock source
+ - description: USB4_2 PHY PCIE PIPEGMUX clock source
+ - description: USB4_2 PHY PIPEGMUX clock source
+ - description: USB4_2 PHY SYS PCIE PIPEGMUX clock source
+ - description: USB4_0 PHY RX 0 clock source
+ - description: USB4_0 PHY RX 1 clock source
+ - description: USB4_1 PHY RX 0 clock source
+ - description: USB4_1 PHY RX 1 clock source
+ - description: USB4_2 PHY RX 0 clock source
+ - description: USB4_2 PHY RX 1 clock source
+ - description: USB4_0 PHY PCIE PIPE clock source
+ - description: USB4_0 PHY max PIPE clock source
+ - description: USB4_1 PHY PCIE PIPE clock source
+ - description: USB4_1 PHY max PIPE clock source
+ - description: USB4_2 PHY PCIE PIPE clock source
+ - description: USB4_2 PHY max PIPE clock source
+
+ power-domains:
+ description:
+ A phandle and PM domain specifier for the CX power domain.
+ maxItems: 1
+
+required:
+ - compatible
+ - clocks
+ - power-domains
+ - '#power-domain-cells'
+
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/power/qcom,rpmhpd.h>
+ clock-controller@100000 {
+ compatible = "qcom,x1e80100-gcc";
+ reg = <0x00100000 0x200000>;
+ clocks = <&bi_tcxo_div2>,
+ <&sleep_clk>,
+ <&pcie3_phy>,
+ <&pcie4_phy>,
+ <&pcie5_phy>,
+ <&pcie6a_phy>,
+ <&pcie6b_phy>,
+ <&usb_1_ss0_qmpphy 0>,
+ <&usb_1_ss1_qmpphy 1>,
+ <&usb_1_ss2_qmpphy 2>,
+ <&usb4_0_phy_dp0_gmux_clk>,
+ <&usb4_0_phy_dp1_gmux_clk>,
+ <&usb4_0_phy_pcie_pipegmux_clk>,
+ <&usb4_0_phy_pipegmux_clk>,
+ <&usb4_0_phy_sys_pcie_pipegmux_clk>,
+ <&usb4_1_phy_dp0_gmux_2_clk>,
+ <&usb4_1_phy_dp1_gmux_2_clk>,
+ <&usb4_1_phy_pcie_pipegmux_clk>,
+ <&usb4_1_phy_pipegmux_clk>,
+ <&usb4_1_phy_sys_pcie_pipegmux_clk>,
+ <&usb4_2_phy_dp0_gmux_2_clk>,
+ <&usb4_2_phy_dp1_gmux_2_clk>,
+ <&usb4_2_phy_pcie_pipegmux_clk>,
+ <&usb4_2_phy_pipegmux_clk>,
+ <&usb4_2_phy_sys_pcie_pipegmux_clk>,
+ <&usb4_0_phy_rx_0_clk>,
+ <&usb4_0_phy_rx_1_clk>,
+ <&usb4_1_phy_rx_0_clk>,
+ <&usb4_1_phy_rx_1_clk>,
+ <&usb4_2_phy_rx_0_clk>,
+ <&usb4_2_phy_rx_1_clk>,
+ <&usb4_0_phy_pcie_pipe_clk>,
+ <&usb4_0_phy_max_pipe_clk>,
+ <&usb4_1_phy_pcie_pipe_clk>,
+ <&usb4_1_phy_max_pipe_clk>,
+ <&usb4_2_phy_pcie_pipe_clk>,
+ <&usb4_2_phy_max_pipe_clk>;
+ power-domains = <&rpmhpd RPMHPD_CX>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/qoriq-clock.txt b/Documentation/devicetree/bindings/clock/qoriq-clock.txt
deleted file mode 100644
index 10119d9ef4b1..000000000000
--- a/Documentation/devicetree/bindings/clock/qoriq-clock.txt
+++ /dev/null
@@ -1,212 +0,0 @@
-* Clock Block on Freescale QorIQ Platforms
-
-Freescale QorIQ chips take primary clocking input from the external
-SYSCLK signal. The SYSCLK input (frequency) is multiplied using
-multiple phase locked loops (PLL) to create a variety of frequencies
-which can then be passed to a variety of internal logic, including
-cores and peripheral IP blocks.
-Please refer to the Reference Manual for details.
-
-All references to "1.0" and "2.0" refer to the QorIQ chassis version to
-which the chip complies.
-
-Chassis Version Example Chips
---------------- -------------
-1.0 p4080, p5020, p5040
-2.0 t4240, b4860
-
-1. Clock Block Binding
-
-Required properties:
-- compatible: Should contain a chip-specific clock block compatible
- string and (if applicable) may contain a chassis-version clock
- compatible string.
-
- Chip-specific strings are of the form "fsl,<chip>-clockgen", such as:
- * "fsl,p2041-clockgen"
- * "fsl,p3041-clockgen"
- * "fsl,p4080-clockgen"
- * "fsl,p5020-clockgen"
- * "fsl,p5040-clockgen"
- * "fsl,t1023-clockgen"
- * "fsl,t1024-clockgen"
- * "fsl,t1040-clockgen"
- * "fsl,t1042-clockgen"
- * "fsl,t2080-clockgen"
- * "fsl,t2081-clockgen"
- * "fsl,t4240-clockgen"
- * "fsl,b4420-clockgen"
- * "fsl,b4860-clockgen"
- * "fsl,ls1012a-clockgen"
- * "fsl,ls1021a-clockgen"
- * "fsl,ls1028a-clockgen"
- * "fsl,ls1043a-clockgen"
- * "fsl,ls1046a-clockgen"
- * "fsl,ls1088a-clockgen"
- * "fsl,ls2080a-clockgen"
- * "fsl,lx2160a-clockgen"
- Chassis-version clock strings include:
- * "fsl,qoriq-clockgen-1.0": for chassis 1.0 clocks
- * "fsl,qoriq-clockgen-2.0": for chassis 2.0 clocks
-- reg: Describes the address of the device's resources within the
- address space defined by its parent bus, and resource zero
- represents the clock register set
-
-Optional properties:
-- ranges: Allows valid translation between child's address space and
- parent's. Must be present if the device has sub-nodes.
-- #address-cells: Specifies the number of cells used to represent
- physical base addresses. Must be present if the device has
- sub-nodes and set to 1 if present
-- #size-cells: Specifies the number of cells used to represent
- the size of an address. Must be present if the device has
- sub-nodes and set to 1 if present
-- clock-frequency: Input system clock frequency (SYSCLK)
-- clocks: If clock-frequency is not specified, sysclk may be provided
- as an input clock. Either clock-frequency or clocks must be
- provided.
- A second input clock, called "coreclk", may be provided if
- core PLLs are based on a different input clock from the
- platform PLL.
-- clock-names: Required if a coreclk is present. Valid names are
- "sysclk" and "coreclk".
-
-2. Clock Provider
-
-The clockgen node should act as a clock provider, though in older device
-trees the children of the clockgen node are the clock providers.
-
-When the clockgen node is a clock provider, #clock-cells = <2>.
-The first cell of the clock specifier is the clock type, and the
-second cell is the clock index for the specified type.
-
- Type# Name Index Cell
- 0 sysclk must be 0
- 1 cmux index (n in CLKCnCSR)
- 2 hwaccel index (n in CLKCGnHWACSR)
- 3 fman 0 for fm1, 1 for fm2
- 4 platform pll n=pll/(n+1). For example, when n=1,
- that means output_freq=PLL_freq/2.
- 5 coreclk must be 0
-
-3. Example
-
- clockgen: global-utilities@e1000 {
- compatible = "fsl,p5020-clockgen", "fsl,qoriq-clockgen-1.0";
- clock-frequency = <133333333>;
- reg = <0xe1000 0x1000>;
- #clock-cells = <2>;
- };
-
- fman@400000 {
- ...
- clocks = <&clockgen 3 0>;
- ...
- };
-}
-4. Legacy Child Nodes
-
-NOTE: These nodes are deprecated. Kernels should continue to support
-device trees with these nodes, but new device trees should not use them.
-
-Most of the bindings are from the common clock binding[1].
- [1] Documentation/devicetree/bindings/clock/clock-bindings.txt
-
-Required properties:
-- compatible : Should include one of the following:
- * "fsl,qoriq-core-pll-1.0" for core PLL clocks (v1.0)
- * "fsl,qoriq-core-pll-2.0" for core PLL clocks (v2.0)
- * "fsl,qoriq-core-mux-1.0" for core mux clocks (v1.0)
- * "fsl,qoriq-core-mux-2.0" for core mux clocks (v2.0)
- * "fsl,qoriq-sysclk-1.0": for input system clock (v1.0).
- It takes parent's clock-frequency as its clock.
- * "fsl,qoriq-sysclk-2.0": for input system clock (v2.0).
- It takes parent's clock-frequency as its clock.
- * "fsl,qoriq-platform-pll-1.0" for the platform PLL clock (v1.0)
- * "fsl,qoriq-platform-pll-2.0" for the platform PLL clock (v2.0)
-- #clock-cells: From common clock binding. The number of cells in a
- clock-specifier. Should be <0> for "fsl,qoriq-sysclk-[1,2].0"
- clocks, or <1> for "fsl,qoriq-core-pll-[1,2].0" clocks.
- For "fsl,qoriq-core-pll-[1,2].0" clocks, the single
- clock-specifier cell may take the following values:
- * 0 - equal to the PLL frequency
- * 1 - equal to the PLL frequency divided by 2
- * 2 - equal to the PLL frequency divided by 4
-
-Recommended properties:
-- clocks: Should be the phandle of input parent clock
-- clock-names: From common clock binding, indicates the clock name
-- clock-output-names: From common clock binding, indicates the names of
- output clocks
-- reg: Should be the offset and length of clock block base address.
- The length should be 4.
-
-Legacy Example:
-/ {
- clockgen: global-utilities@e1000 {
- compatible = "fsl,p5020-clockgen", "fsl,qoriq-clockgen-1.0";
- ranges = <0x0 0xe1000 0x1000>;
- clock-frequency = <133333333>;
- reg = <0xe1000 0x1000>;
- #address-cells = <1>;
- #size-cells = <1>;
-
- sysclk: sysclk {
- #clock-cells = <0>;
- compatible = "fsl,qoriq-sysclk-1.0";
- clock-output-names = "sysclk";
- };
-
- pll0: pll0@800 {
- #clock-cells = <1>;
- reg = <0x800 0x4>;
- compatible = "fsl,qoriq-core-pll-1.0";
- clocks = <&sysclk>;
- clock-output-names = "pll0", "pll0-div2";
- };
-
- pll1: pll1@820 {
- #clock-cells = <1>;
- reg = <0x820 0x4>;
- compatible = "fsl,qoriq-core-pll-1.0";
- clocks = <&sysclk>;
- clock-output-names = "pll1", "pll1-div2";
- };
-
- mux0: mux0@0 {
- #clock-cells = <0>;
- reg = <0x0 0x4>;
- compatible = "fsl,qoriq-core-mux-1.0";
- clocks = <&pll0 0>, <&pll0 1>, <&pll1 0>, <&pll1 1>;
- clock-names = "pll0", "pll0-div2", "pll1", "pll1-div2";
- clock-output-names = "cmux0";
- };
-
- mux1: mux1@20 {
- #clock-cells = <0>;
- reg = <0x20 0x4>;
- compatible = "fsl,qoriq-core-mux-1.0";
- clocks = <&pll0 0>, <&pll0 1>, <&pll1 0>, <&pll1 1>;
- clock-names = "pll0", "pll0-div2", "pll1", "pll1-div2";
- clock-output-names = "cmux1";
- };
-
- platform-pll: platform-pll@c00 {
- #clock-cells = <1>;
- reg = <0xc00 0x4>;
- compatible = "fsl,qoriq-platform-pll-1.0";
- clocks = <&sysclk>;
- clock-output-names = "platform-pll", "platform-pll-div2";
- };
- };
-};
-
-Example for legacy clock consumer:
-
-/ {
- cpu0: PowerPC,e5500@0 {
- ...
- clocks = <&mux0>;
- ...
- };
-};
diff --git a/Documentation/devicetree/bindings/clock/raspberrypi,rp1-clocks.yaml b/Documentation/devicetree/bindings/clock/raspberrypi,rp1-clocks.yaml
new file mode 100644
index 000000000000..cc4491f7ee5f
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/raspberrypi,rp1-clocks.yaml
@@ -0,0 +1,58 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/raspberrypi,rp1-clocks.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: RaspberryPi RP1 clock generator
+
+maintainers:
+ - A. della Porta <andrea.porta@suse.com>
+
+description: |
+ The RP1 contains a clock generator designed as three PLLs (CORE, AUDIO,
+ VIDEO), and each PLL output can be programmed through dividers to generate
+ the clocks to drive the sub-peripherals embedded inside the chipset.
+
+ Link to datasheet:
+ https://datasheets.raspberrypi.com/rp1/rp1-peripherals.pdf
+
+properties:
+ compatible:
+ const: raspberrypi,rp1-clocks
+
+ reg:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 1
+ description:
+ The available clocks are defined in
+ include/dt-bindings/clock/raspberrypi,rp1-clocks.h.
+
+ clocks:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - '#clock-cells'
+ - clocks
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/raspberrypi,rp1-clocks.h>
+
+ rp1 {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ clocks@c040018000 {
+ compatible = "raspberrypi,rp1-clocks";
+ reg = <0xc0 0x40018000 0x0 0x10038>;
+ #clock-cells = <1>;
+ clocks = <&clk_rp1_xosc>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/clock/renesas,5p35023.yaml b/Documentation/devicetree/bindings/clock/renesas,5p35023.yaml
new file mode 100644
index 000000000000..162d38035188
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/renesas,5p35023.yaml
@@ -0,0 +1,90 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/renesas,5p35023.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas 5p35023 VersaClock 3 programmable I2C clock generator
+
+maintainers:
+ - Biju Das <biju.das.jz@bp.renesas.com>
+
+description: |
+ The 5P35023 is a VersaClock programmable clock generator and
+ is designed for low-power, consumer, and high-performance PCI
+ express applications. The 5P35023 device is a three PLL
+ architecture design, and each PLL is individually programmable
+ and allowing for up to 6 unique frequency outputs.
+
+ An internal OTP memory allows the user to store the configuration
+ in the device. After power up, the user can change the device register
+ settings through the I2C interface when I2C mode is selected.
+
+ The driver can read a full register map from the DT, and will use that
+ register map to initialize the attached part (via I2C) when the system
+ boots. Any configuration not supported by the common clock framework
+ must be done via the full register map, including optimized settings.
+
+ Link to datasheet:
+ https://www.renesas.com/us/en/products/clocks-timing/clock-generation/programmable-clocks/5p35023-versaclock-3s-programmable-clock-generator
+
+properties:
+ compatible:
+ enum:
+ - renesas,5l35023
+ - renesas,5p35023
+
+ reg:
+ maxItems: 1
+
+ '#clock-cells':
+ description:
+ The index in the assigned-clocks is mapped to the output clock as below
+ 0 - REF, 1 - SE1, 2 - SE2, 3 - SE3, 4 - DIFF1, 5 - DIFF2.
+ const: 1
+
+ clocks:
+ maxItems: 1
+
+ renesas,settings:
+ description: Optional, complete register map of the device.
+ Optimized settings for the device must be provided in full
+ and are written during initialization.
+ $ref: /schemas/types.yaml#/definitions/uint8-array
+ maxItems: 37
+
+required:
+ - compatible
+ - reg
+ - '#clock-cells'
+ - clocks
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ versa3: clock-generator@68 {
+ compatible = "renesas,5p35023";
+ reg = <0x68>;
+ #clock-cells = <1>;
+
+ clocks = <&x1>;
+
+ renesas,settings = [
+ 80 00 11 19 4c 02 23 7f 83 19 08 a9 5f 25 24 bf
+ 00 14 7a e1 00 00 00 00 01 55 59 bb 3f 30 90 b6
+ 80 b0 45 c4 95
+ ];
+
+ assigned-clocks = <&versa3 0>, <&versa3 1>,
+ <&versa3 2>, <&versa3 3>,
+ <&versa3 4>, <&versa3 5>;
+ assigned-clock-rates = <24000000>, <11289600>,
+ <11289600>, <12000000>,
+ <25000000>, <12288000>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/clock/renesas,9series.yaml b/Documentation/devicetree/bindings/clock/renesas,9series.yaml
index 3afdebdb52ad..af6319697b1c 100644
--- a/Documentation/devicetree/bindings/clock/renesas,9series.yaml
+++ b/Documentation/devicetree/bindings/clock/renesas,9series.yaml
@@ -21,6 +21,15 @@ description: |
1 -- DIF1
2 -- DIF2
3 -- DIF3
+ - 9FGV0841:
+ 0 -- DIF0
+ 1 -- DIF1
+ 2 -- DIF2
+ 3 -- DIF3
+ 4 -- DIF4
+ 5 -- DIF5
+ 6 -- DIF6
+ 7 -- DIF7
maintainers:
- Marek Vasut <marex@denx.de>
@@ -30,6 +39,7 @@ properties:
enum:
- renesas,9fgv0241
- renesas,9fgv0441
+ - renesas,9fgv0841
reg:
description: I2C device address
diff --git a/Documentation/devicetree/bindings/clock/renesas,cpg-clocks.yaml b/Documentation/devicetree/bindings/clock/renesas,cpg-clocks.yaml
index 9185d101737e..a0e09b7002f0 100644
--- a/Documentation/devicetree/bindings/clock/renesas,cpg-clocks.yaml
+++ b/Documentation/devicetree/bindings/clock/renesas,cpg-clocks.yaml
@@ -32,12 +32,16 @@ properties:
reg:
maxItems: 1
- clocks: true
+ clocks:
+ minItems: 1
+ maxItems: 3
'#clock-cells':
const: 1
- clock-output-names: true
+ clock-output-names:
+ minItems: 3
+ maxItems: 17
renesas,mode:
description: Board-specific settings of the MD_CK* bits on R-Mobile A1
diff --git a/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.yaml b/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.yaml
index 9c3dc6c4fa94..655154534c0f 100644
--- a/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.yaml
+++ b/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.yaml
@@ -31,6 +31,7 @@ properties:
- renesas,r8a7745-cpg-mssr # RZ/G1E
- renesas,r8a77470-cpg-mssr # RZ/G1C
- renesas,r8a774a1-cpg-mssr # RZ/G2M
+ - renesas,r8a774a3-cpg-mssr # RZ/G2M v3.0
- renesas,r8a774b1-cpg-mssr # RZ/G2N
- renesas,r8a774c0-cpg-mssr # RZ/G2E
- renesas,r8a774e1-cpg-mssr # RZ/G2H
@@ -50,9 +51,17 @@ properties:
- renesas,r8a779a0-cpg-mssr # R-Car V3U
- renesas,r8a779f0-cpg-mssr # R-Car S4-8
- renesas,r8a779g0-cpg-mssr # R-Car V4H
+ - renesas,r8a779h0-cpg-mssr # R-Car V4M
+ - renesas,r9a09g077-cpg-mssr # RZ/T2H
+ - renesas,r9a09g087-cpg-mssr # RZ/N2H
reg:
- maxItems: 1
+ minItems: 1
+ items:
+ - description: base address of register block 0
+ - description: base address of register block 1
+ description: base addresses of clock controller. Some controllers
+ (like r9a09g077) use two blocks instead of a single one.
clocks:
minItems: 1
@@ -90,17 +99,6 @@ properties:
the datasheet.
const: 1
-if:
- not:
- properties:
- compatible:
- items:
- enum:
- - renesas,r7s9210-cpg-mssr
-then:
- required:
- - '#reset-cells'
-
required:
- compatible
- reg
@@ -109,6 +107,36 @@ required:
- '#clock-cells'
- '#power-domain-cells'
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - renesas,r9a09g077-cpg-mssr
+ - renesas,r9a09g087-cpg-mssr
+ then:
+ properties:
+ reg:
+ minItems: 2
+ clock-names:
+ items:
+ - const: extal
+ else:
+ properties:
+ reg:
+ maxItems: 1
+ - if:
+ not:
+ properties:
+ compatible:
+ items:
+ enum:
+ - renesas,r7s9210-cpg-mssr
+ then:
+ required:
+ - '#reset-cells'
+
additionalProperties: false
examples:
diff --git a/Documentation/devicetree/bindings/clock/renesas,r9a06g032-sysctrl.yaml b/Documentation/devicetree/bindings/clock/renesas,r9a06g032-sysctrl.yaml
index 99686085f751..26d94cedc871 100644
--- a/Documentation/devicetree/bindings/clock/renesas,r9a06g032-sysctrl.yaml
+++ b/Documentation/devicetree/bindings/clock/renesas,r9a06g032-sysctrl.yaml
@@ -48,7 +48,7 @@ properties:
patternProperties:
"^dma-router@[a-f0-9]+$":
type: object
- $ref: "../dma/renesas,rzn1-dmamux.yaml#"
+ $ref: /schemas/dma/renesas,rzn1-dmamux.yaml#
required:
- compatible
diff --git a/Documentation/devicetree/bindings/clock/renesas,r9a08g045-vbattb.yaml b/Documentation/devicetree/bindings/clock/renesas,r9a08g045-vbattb.yaml
new file mode 100644
index 000000000000..3707e4118949
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/renesas,r9a08g045-vbattb.yaml
@@ -0,0 +1,84 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/renesas,r9a08g045-vbattb.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas Battery Backup Function (VBATTB)
+
+description:
+ Renesas VBATTB is an always on powered module (backed by battery) which
+ controls the RTC clock (VBATTCLK), tamper detection logic and a small
+ general usage memory (128B).
+
+maintainers:
+ - Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
+
+properties:
+ compatible:
+ const: renesas,r9a08g045-vbattb
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ items:
+ - description: tamper detector interrupt
+
+ clocks:
+ items:
+ - description: VBATTB module clock
+ - description: RTC input clock (crystal or external clock device)
+
+ clock-names:
+ items:
+ - const: bclk
+ - const: rtx
+
+ '#clock-cells':
+ const: 1
+
+ power-domains:
+ maxItems: 1
+
+ resets:
+ items:
+ - description: VBATTB module reset
+
+ quartz-load-femtofarads:
+ description: load capacitance of the on board crystal
+ enum: [ 4000, 7000, 9000, 12500 ]
+ default: 4000
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - '#clock-cells'
+ - power-domains
+ - resets
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/r9a08g045-cpg.h>
+ #include <dt-bindings/clock/renesas,r9a08g045-vbattb.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ clock-controller@1005c000 {
+ compatible = "renesas,r9a08g045-vbattb";
+ reg = <0x1005c000 0x1000>;
+ interrupts = <GIC_SPI 43 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD R9A08G045_VBAT_BCLK>, <&vbattb_xtal>;
+ clock-names = "bclk", "rtx";
+ assigned-clocks = <&vbattb VBATTB_MUX>;
+ assigned-clock-parents = <&vbattb VBATTB_XC>;
+ #clock-cells = <1>;
+ power-domains = <&cpg>;
+ resets = <&cpg R9A08G045_VBAT_BRESETN>;
+ quartz-load-femtofarads = <12500>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/renesas,rzg2l-cpg.yaml b/Documentation/devicetree/bindings/clock/renesas,rzg2l-cpg.yaml
index fe2fba18ae84..8c18616e5c4d 100644
--- a/Documentation/devicetree/bindings/clock/renesas,rzg2l-cpg.yaml
+++ b/Documentation/devicetree/bindings/clock/renesas,rzg2l-cpg.yaml
@@ -27,6 +27,7 @@ properties:
- renesas,r9a07g043-cpg # RZ/G2UL{Type-1,Type-2} and RZ/Five
- renesas,r9a07g044-cpg # RZ/G2{L,LC}
- renesas,r9a07g054-cpg # RZ/V2L
+ - renesas,r9a08g045-cpg # RZ/G3S
- renesas,r9a09g011-cpg # RZ/V2M
reg:
@@ -60,7 +61,7 @@ properties:
'#reset-cells':
description:
- The single reset specifier cell must be the module number, as defined in
+ The single reset specifier cell must be the reset number, as defined in
<dt-bindings/clock/r9a0*-cpg.h>.
const: 1
diff --git a/Documentation/devicetree/bindings/clock/renesas,rzv2h-cpg.yaml b/Documentation/devicetree/bindings/clock/renesas,rzv2h-cpg.yaml
new file mode 100644
index 000000000000..f261445bf341
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/renesas,rzv2h-cpg.yaml
@@ -0,0 +1,84 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/renesas,rzv2h-cpg.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas RZ/{G3E,V2H(P),V2N} Clock Pulse Generator (CPG)
+
+maintainers:
+ - Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
+
+description:
+ On Renesas RZ/{G3E,V2H(P),V2N} SoCs, the CPG (Clock Pulse Generator) handles
+ generation and control of clock signals for the IP modules, generation and
+ control of resets, and control over booting, low power consumption and power
+ supply domains.
+
+properties:
+ compatible:
+ enum:
+ - renesas,r9a09g047-cpg # RZ/G3E
+ - renesas,r9a09g056-cpg # RZ/V2N
+ - renesas,r9a09g057-cpg # RZ/V2H
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: AUDIO_EXTAL clock input
+ - description: RTXIN clock input
+ - description: QEXTAL clock input
+
+ clock-names:
+ items:
+ - const: audio_extal
+ - const: rtxin
+ - const: qextal
+
+ '#clock-cells':
+ description: |
+ - For CPG core clocks, the two clock specifier cells must be "CPG_CORE"
+ and a core clock reference, as defined in
+ <dt-bindings/clock/renesas,r9a09g0*-cpg.h>,
+ - For module clocks, the two clock specifier cells must be "CPG_MOD" and
+ a module number. The module number is calculated as the CLKON register
+ offset index multiplied by 16, plus the actual bit in the register
+ used to turn the CLK ON. For example, for CGC_GIC_0_GICCLK, the
+ calculation is (1 * 16 + 3) = 0x13.
+ const: 2
+
+ '#power-domain-cells':
+ const: 0
+
+ '#reset-cells':
+ description:
+ The single reset specifier cell must be the reset number. The reset number
+ is calculated as the reset register offset index multiplied by 16, plus the
+ actual bit in the register used to reset the specific IP block. For example,
+ for SYS_0_PRESETN, the calculation is (3 * 16 + 0) = 0x30.
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - '#clock-cells'
+ - '#power-domain-cells'
+ - '#reset-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-controller@10420000 {
+ compatible = "renesas,r9a09g057-cpg";
+ reg = <0x10420000 0x10000>;
+ clocks = <&audio_extal_clk>, <&rtxin_clk>, <&qextal_clk>;
+ clock-names = "audio_extal", "rtxin", "qextal";
+ #clock-cells = <2>;
+ #power-domain-cells = <0>;
+ #reset-cells = <1>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/riscv,rpmi-clock.yaml b/Documentation/devicetree/bindings/clock/riscv,rpmi-clock.yaml
new file mode 100644
index 000000000000..5d62bf8215c8
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/riscv,rpmi-clock.yaml
@@ -0,0 +1,64 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/riscv,rpmi-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: RISC-V RPMI clock service group based clock controller
+
+maintainers:
+ - Anup Patel <anup@brainfault.org>
+
+description: |
+ The RISC-V Platform Management Interface (RPMI) [1] defines a
+ messaging protocol which is modular and extensible. The supervisor
+ software can send/receive RPMI messages via SBI MPXY extension [2]
+ or some dedicated supervisor-mode RPMI transport.
+
+ The RPMI specification [1] defines clock service group for accessing
+ system clocks managed by a platform microcontroller. The supervisor
+ software can access RPMI clock service group via SBI MPXY channel or
+ some dedicated supervisor-mode RPMI transport.
+
+ ===========================================
+ References
+ ===========================================
+
+ [1] RISC-V Platform Management Interface (RPMI) v1.0 (or higher)
+ https://github.com/riscv-non-isa/riscv-rpmi/releases
+
+ [2] RISC-V Supervisor Binary Interface (SBI) v3.0 (or higher)
+ https://github.com/riscv-non-isa/riscv-sbi-doc/releases
+
+properties:
+ compatible:
+ description:
+ Intended for use by the supervisor software.
+ const: riscv,rpmi-clock
+
+ mboxes:
+ maxItems: 1
+ description:
+ Mailbox channel of the underlying RPMI transport or SBI message proxy channel.
+
+ "#clock-cells":
+ const: 1
+ description:
+ Platform specific CLOCK_ID as defined by the RISC-V Platform Management
+ Interface (RPMI) specification.
+
+required:
+ - compatible
+ - mboxes
+ - "#clock-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-controller {
+ compatible = "riscv,rpmi-clock";
+ mboxes = <&mpxy_mbox 0x1000 0x0>;
+ #clock-cells = <1>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/riscv,rpmi-mpxy-clock.yaml b/Documentation/devicetree/bindings/clock/riscv,rpmi-mpxy-clock.yaml
new file mode 100644
index 000000000000..76f2a1b3d30d
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/riscv,rpmi-mpxy-clock.yaml
@@ -0,0 +1,64 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/riscv,rpmi-mpxy-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: RISC-V RPMI clock service group based message proxy
+
+maintainers:
+ - Anup Patel <anup@brainfault.org>
+
+description: |
+ The RISC-V Platform Management Interface (RPMI) [1] defines a
+ messaging protocol which is modular and extensible. The supervisor
+ software can send/receive RPMI messages via SBI MPXY extension [2]
+ or some dedicated supervisor-mode RPMI transport.
+
+ The RPMI specification [1] defines clock service group for accessing
+ system clocks managed by a platform microcontroller. The SBI implementation
+ (machine mode firmware or hypervisor) can implement an SBI MPXY channel
+ to allow RPMI clock service group access to the supervisor software.
+
+ ===========================================
+ References
+ ===========================================
+
+ [1] RISC-V Platform Management Interface (RPMI) v1.0 (or higher)
+ https://github.com/riscv-non-isa/riscv-rpmi/releases
+
+ [2] RISC-V Supervisor Binary Interface (SBI) v3.0 (or higher)
+ https://github.com/riscv-non-isa/riscv-sbi-doc/releases
+
+properties:
+ compatible:
+ description:
+ Intended for use by the SBI implementation.
+ const: riscv,rpmi-mpxy-clock
+
+ mboxes:
+ maxItems: 1
+ description:
+ Mailbox channel of the underlying RPMI transport.
+
+ riscv,sbi-mpxy-channel-id:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ The SBI MPXY channel id to be used for providing RPMI access to
+ the supervisor software.
+
+required:
+ - compatible
+ - mboxes
+ - riscv,sbi-mpxy-channel-id
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-service {
+ compatible = "riscv,rpmi-mpxy-clock";
+ mboxes = <&rpmi_shmem_mbox 0x8>;
+ riscv,sbi-mpxy-channel-id = <0x1000>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/rockchip,rk3328-cru.txt b/Documentation/devicetree/bindings/clock/rockchip,rk3328-cru.txt
deleted file mode 100644
index 904ae682ea90..000000000000
--- a/Documentation/devicetree/bindings/clock/rockchip,rk3328-cru.txt
+++ /dev/null
@@ -1,58 +0,0 @@
-* Rockchip RK3328 Clock and Reset Unit
-
-The RK3328 clock controller generates and supplies clock to various
-controllers within the SoC and also implements a reset controller for SoC
-peripherals.
-
-Required Properties:
-
-- compatible: should be "rockchip,rk3328-cru"
-- reg: physical base address of the controller and length of memory mapped
- region.
-- #clock-cells: should be 1.
-- #reset-cells: should be 1.
-
-Optional Properties:
-
-- rockchip,grf: phandle to the syscon managing the "general register files"
- If missing pll rates are not changeable, due to the missing pll lock status.
-
-Each clock is assigned an identifier and client nodes can use this identifier
-to specify the clock which they consume. All available clocks are defined as
-preprocessor macros in the dt-bindings/clock/rk3328-cru.h headers and can be
-used in device tree sources. Similar macros exist for the reset sources in
-these files.
-
-External clocks:
-
-There are several clocks that are generated outside the SoC. It is expected
-that they are defined using standard clock bindings with following
-clock-output-names:
- - "xin24m" - crystal input - required,
- - "clkin_i2s" - external I2S clock - optional,
- - "gmac_clkin" - external GMAC clock - optional
- - "phy_50m_out" - output clock of the pll in the mac phy
- - "hdmi_phy" - output clock of the hdmi phy pll - optional
-
-Example: Clock controller node:
-
- cru: clock-controller@ff440000 {
- compatible = "rockchip,rk3328-cru";
- reg = <0x0 0xff440000 0x0 0x1000>;
- rockchip,grf = <&grf>;
-
- #clock-cells = <1>;
- #reset-cells = <1>;
- };
-
-Example: UART controller node that consumes the clock generated by the clock
- controller:
-
- uart0: serial@ff120000 {
- compatible = "snps,dw-apb-uart";
- reg = <0xff120000 0x100>;
- interrupts = <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>;
- reg-shift = <2>;
- reg-io-width = <4>;
- clocks = <&cru SCLK_UART0>;
- };
diff --git a/Documentation/devicetree/bindings/clock/rockchip,rk3328-cru.yaml b/Documentation/devicetree/bindings/clock/rockchip,rk3328-cru.yaml
new file mode 100644
index 000000000000..f079c7a2559b
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/rockchip,rk3328-cru.yaml
@@ -0,0 +1,74 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/rockchip,rk3328-cru.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Rockchip RK3328 Clock and Reset Unit (CRU)
+
+maintainers:
+ - Elaine Zhang <zhangqing@rock-chips.com>
+ - Heiko Stuebner <heiko@sntech.de>
+
+description: |
+ The RK3328 clock controller generates and supplies clocks to various
+ controllers within the SoC and also implements a reset controller for SoC
+ peripherals.
+ Each clock is assigned an identifier and client nodes can use this identifier
+ to specify the clock which they consume. All available clocks are defined as
+ preprocessor macros in the dt-bindings/clock/rk3328-cru.h headers and can be
+ used in device tree sources. Similar macros exist for the reset sources in
+ these files.
+ There are several clocks that are generated outside the SoC. It is expected
+ that they are defined using standard clock bindings with following
+ clock-output-names:
+ - "xin24m" - crystal input - required,
+ - "clkin_i2s" - external I2S clock - optional,
+ - "gmac_clkin" - external GMAC clock - optional
+ - "phy_50m_out" - output clock of the pll in the mac phy
+ - "hdmi_phy" - output clock of the hdmi phy pll - optional
+
+properties:
+ compatible:
+ enum:
+ - rockchip,rk3328-cru
+
+ reg:
+ maxItems: 1
+
+ "#clock-cells":
+ const: 1
+
+ "#reset-cells":
+ const: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ const: xin24m
+
+ rockchip,grf:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description:
+ Phandle to the syscon managing the "general register files" (GRF),
+ if missing pll rates are not changeable, due to the missing pll
+ lock status.
+
+required:
+ - compatible
+ - reg
+ - "#clock-cells"
+ - "#reset-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ cru: clock-controller@ff440000 {
+ compatible = "rockchip,rk3328-cru";
+ reg = <0xff440000 0x1000>;
+ rockchip,grf = <&grf>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/rockchip,rk3506-cru.yaml b/Documentation/devicetree/bindings/clock/rockchip,rk3506-cru.yaml
new file mode 100644
index 000000000000..ca940475336c
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/rockchip,rk3506-cru.yaml
@@ -0,0 +1,55 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/rockchip,rk3506-cru.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Rockchip RK3506 Clock and Reset Unit (CRU)
+
+maintainers:
+ - Finley Xiao <finley.xiao@rock-chips.com>
+ - Heiko Stuebner <heiko@sntech.de>
+
+description:
+ The RK3506 CRU generates the clock and also implements reset for SoC
+ peripherals.
+
+properties:
+ compatible:
+ const: rockchip,rk3506-cru
+
+ reg:
+ maxItems: 1
+
+ "#clock-cells":
+ const: 1
+
+ "#reset-cells":
+ const: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ const: xin
+
+required:
+ - compatible
+ - reg
+ - "#clock-cells"
+ - "#reset-cells"
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-controller@ff9a0000 {
+ compatible = "rockchip,rk3506-cru";
+ reg = <0xff9a0000 0x20000>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ clocks = <&xin24m>;
+ clock-names = "xin";
+ };
diff --git a/Documentation/devicetree/bindings/clock/rockchip,rk3528-cru.yaml b/Documentation/devicetree/bindings/clock/rockchip,rk3528-cru.yaml
new file mode 100644
index 000000000000..5a3ec902351c
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/rockchip,rk3528-cru.yaml
@@ -0,0 +1,64 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/rockchip,rk3528-cru.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Rockchip RK3528 Clock and Reset Controller
+
+maintainers:
+ - Yao Zi <ziyao@disroot.org>
+
+description: |
+ The RK3528 clock controller generates the clock and also implements a reset
+ controller for SoC peripherals. For example, it provides SCLK_UART0 and
+ PCLK_UART0 as well as SRST_P_UART0 and SRST_S_UART0 for the first UART
+ module.
+ Each clock is assigned an identifier, consumer nodes can use it to specify
+ the clock. All available clock and reset IDs are defined in dt-binding
+ headers.
+
+properties:
+ compatible:
+ const: rockchip,rk3528-cru
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: External 24MHz oscillator clock
+ - description: >
+ 50MHz clock generated by PHY module, for generating GMAC0 clocks only.
+
+ clock-names:
+ items:
+ - const: xin24m
+ - const: gmac0
+
+ "#clock-cells":
+ const: 1
+
+ "#reset-cells":
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - "#clock-cells"
+ - "#reset-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-controller@ff4a0000 {
+ compatible = "rockchip,rk3528-cru";
+ reg = <0xff4a0000 0x30000>;
+ clocks = <&xin24m>, <&gmac0_clk>;
+ clock-names = "xin24m", "gmac0";
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/rockchip,rk3562-cru.yaml b/Documentation/devicetree/bindings/clock/rockchip,rk3562-cru.yaml
new file mode 100644
index 000000000000..36a353f5c42a
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/rockchip,rk3562-cru.yaml
@@ -0,0 +1,55 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/rockchip,rk3562-cru.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Rockchip rk3562 Clock and Reset Control Module
+
+maintainers:
+ - Elaine Zhang <zhangqing@rock-chips.com>
+ - Heiko Stuebner <heiko@sntech.de>
+
+description:
+ The RK3562 clock controller generates the clock and also implements a reset
+ controller for SoC peripherals. For example it provides SCLK_UART2 and
+ PCLK_UART2, as well as SRST_P_UART2 and SRST_S_UART2 for the second UART
+ module.
+
+properties:
+ compatible:
+ const: rockchip,rk3562-cru
+
+ reg:
+ maxItems: 1
+
+ "#clock-cells":
+ const: 1
+
+ "#reset-cells":
+ const: 1
+
+ clocks:
+ maxItems: 2
+
+ clock-names:
+ items:
+ - const: xin24m
+ - const: xin32k
+
+required:
+ - compatible
+ - reg
+ - "#clock-cells"
+ - "#reset-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-controller@ff100000 {
+ compatible = "rockchip,rk3562-cru";
+ reg = <0xff100000 0x40000>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/rockchip,rk3576-cru.yaml b/Documentation/devicetree/bindings/clock/rockchip,rk3576-cru.yaml
new file mode 100644
index 000000000000..9c9b36049c71
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/rockchip,rk3576-cru.yaml
@@ -0,0 +1,56 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/rockchip,rk3576-cru.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Rockchip rk3576 Family Clock and Reset Control Module
+
+maintainers:
+ - Elaine Zhang <zhangqing@rock-chips.com>
+ - Heiko Stuebner <heiko@sntech.de>
+ - Detlev Casanova <detlev.casanova@collabora.com>
+
+description:
+ The RK3576 clock controller generates the clock and also implements a reset
+ controller for SoC peripherals. For example it provides SCLK_UART2 and
+ PCLK_UART2, as well as SRST_P_UART2 and SRST_S_UART2 for the second UART
+ module.
+
+properties:
+ compatible:
+ const: rockchip,rk3576-cru
+
+ reg:
+ maxItems: 1
+
+ "#clock-cells":
+ const: 1
+
+ "#reset-cells":
+ const: 1
+
+ clocks:
+ maxItems: 2
+
+ clock-names:
+ items:
+ - const: xin24m
+ - const: xin32k
+
+required:
+ - compatible
+ - reg
+ - "#clock-cells"
+ - "#reset-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-controller@27200000 {
+ compatible = "rockchip,rk3576-cru";
+ reg = <0xfd7c0000 0x5c000>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/rockchip,rk3588-cru.yaml b/Documentation/devicetree/bindings/clock/rockchip,rk3588-cru.yaml
index 74cd3f3f229a..4ff175c4992b 100644
--- a/Documentation/devicetree/bindings/clock/rockchip,rk3588-cru.yaml
+++ b/Documentation/devicetree/bindings/clock/rockchip,rk3588-cru.yaml
@@ -42,10 +42,6 @@ properties:
- const: xin24m
- const: xin32k
- assigned-clocks: true
-
- assigned-clock-rates: true
-
rockchip,grf:
$ref: /schemas/types.yaml#/definitions/phandle
description: >
diff --git a/Documentation/devicetree/bindings/clock/rockchip,rv1126b-cru.yaml b/Documentation/devicetree/bindings/clock/rockchip,rv1126b-cru.yaml
new file mode 100644
index 000000000000..04b0a5c51e4e
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/rockchip,rv1126b-cru.yaml
@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/rockchip,rv1126b-cru.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Rockchip RV1126B Clock and Reset Unit
+
+maintainers:
+ - Elaine Zhang <zhangqing@rock-chips.com>
+ - Heiko Stuebner <heiko@sntech.de>
+
+description:
+ The rv1126b clock controller generates the clock and also implements a
+ reset controller for SoC peripherals.
+
+properties:
+ compatible:
+ enum:
+ - rockchip,rv1126b-cru
+
+ reg:
+ maxItems: 1
+
+ "#clock-cells":
+ const: 1
+
+ "#reset-cells":
+ const: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ const: xin24m
+
+required:
+ - compatible
+ - reg
+ - "#clock-cells"
+ - "#reset-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-controller@20000000 {
+ compatible = "rockchip,rv1126b-cru";
+ reg = <0x20000000 0xc0000>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/samsung,exynos-clock.yaml b/Documentation/devicetree/bindings/clock/samsung,exynos-clock.yaml
index 0589a63e273a..a36781a455b6 100644
--- a/Documentation/devicetree/bindings/clock/samsung,exynos-clock.yaml
+++ b/Documentation/devicetree/bindings/clock/samsung,exynos-clock.yaml
@@ -24,6 +24,7 @@ properties:
- samsung,exynos3250-cmu-dmc
- samsung,exynos3250-cmu-isp
- samsung,exynos4210-clock
+ - samsung,exynos4212-clock
- samsung,exynos4412-clock
- samsung,exynos5250-clock
- items:
diff --git a/Documentation/devicetree/bindings/clock/samsung,exynos2200-cmu.yaml b/Documentation/devicetree/bindings/clock/samsung,exynos2200-cmu.yaml
new file mode 100644
index 000000000000..89433e6d3518
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/samsung,exynos2200-cmu.yaml
@@ -0,0 +1,247 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/samsung,exynos2200-cmu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Samsung Exynos2200 SoC clock controller
+
+maintainers:
+ - Ivaylo Ivanov <ivo.ivanov.ivanov1@gmail.com>
+ - Chanwoo Choi <cw00.choi@samsung.com>
+ - Krzysztof Kozlowski <krzk@kernel.org>
+
+description: |
+ Exynos2200 clock controller is comprised of several CMU units, generating
+ clocks for different domains. Those CMU units are modeled as separate device
+ tree nodes, and might depend on each other. The root clocks in that root tree
+ are two external clocks: XTCXO (76.8 MHz) and RTCCLK (32768 Hz). XTCXO must be
+ defined as a fixed-rate clock in dts, whereas RTCCLK originates from PMIC.
+
+ CMU_TOP is a top-level CMU, where all base clocks are prepared using PLLs and
+ dividers; all other clocks of function blocks (other CMUs) are usually
+ derived from CMU_TOP.
+
+ Each clock is assigned an identifier and client nodes can use this identifier
+ to specify the clock which they consume. All clocks available for usage
+ in clock consumer nodes are defined as preprocessor macros in
+ 'include/dt-bindings/clock/samsung,exynos2200-cmu.h' header.
+
+properties:
+ compatible:
+ enum:
+ - samsung,exynos2200-cmu-alive
+ - samsung,exynos2200-cmu-cmgp
+ - samsung,exynos2200-cmu-hsi0
+ - samsung,exynos2200-cmu-peric0
+ - samsung,exynos2200-cmu-peric1
+ - samsung,exynos2200-cmu-peric2
+ - samsung,exynos2200-cmu-peris
+ - samsung,exynos2200-cmu-top
+ - samsung,exynos2200-cmu-ufs
+ - samsung,exynos2200-cmu-vts
+
+ clocks:
+ minItems: 1
+ maxItems: 6
+
+ clock-names:
+ minItems: 1
+ maxItems: 6
+
+ "#clock-cells":
+ const: 1
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - clocks
+ - clock-names
+ - reg
+ - "#clock-cells"
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: samsung,exynos2200-cmu-alive
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (76.8 MHz)
+ - description: CMU_ALIVE NOC clock (from CMU_TOP)
+
+ clock-names:
+ items:
+ - const: oscclk
+ - const: noc
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: samsung,exynos2200-cmu-cmgp
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (76.8 MHz)
+ - description: CMU_CMGP NOC clock (from CMU_TOP)
+ - description: CMU_CMGP PERI clock (from CMU_TOP)
+
+ clock-names:
+ items:
+ - const: oscclk
+ - const: noc
+ - const: peri
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: samsung,exynos2200-cmu-hsi0
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (76.8 MHz)
+ - description: External RTC clock (32768 Hz)
+ - description: CMU_HSI0 NOC clock (from CMU_TOP)
+ - description: CMU_HSI0 DPGTC clock (from CMU_TOP)
+ - description: CMU_HSI0 DPOSC clock (from CMU_TOP)
+ - description: CMU_HSI0 USB32DRD clock (from CMU_TOP)
+
+ clock-names:
+ items:
+ - const: oscclk
+ - const: rtcclk
+ - const: noc
+ - const: dpgtc
+ - const: dposc
+ - const: usb
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - samsung,exynos2200-cmu-peric0
+ - samsung,exynos2200-cmu-peric1
+ - samsung,exynos2200-cmu-peric2
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (76.8 MHz)
+ - description: CMU_PERICn NOC clock (from CMU_TOP)
+ - description: CMU_PERICn IP0 clock (from CMU_TOP)
+ - description: CMU_PERICn IP1 clock (from CMU_TOP)
+
+ clock-names:
+ items:
+ - const: oscclk
+ - const: noc
+ - const: ip0
+ - const: ip1
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: samsung,exynos2200-cmu-peris
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (25.6 MHz)
+ - description: CMU_PERIS NOC clock (from CMU_TOP)
+ - description: CMU_PERIS GIC clock (from CMU_TOP)
+
+ clock-names:
+ items:
+ - const: tcxo_div3
+ - const: noc
+ - const: gic
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: samsung,exynos2200-cmu-top
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (76.8 MHz)
+
+ clock-names:
+ items:
+ - const: oscclk
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: samsung,exynos2200-cmu-ufs
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (76.8 MHz)
+ - description: CMU_UFS NOC clock (from CMU_TOP)
+ - description: CMU_UFS MMC clock (from CMU_TOP)
+ - description: CMU_UFS UFS clock (from CMU_TOP)
+
+ clock-names:
+ items:
+ - const: oscclk
+ - const: noc
+ - const: mmc
+ - const: ufs
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: samsung,exynos2200-cmu-vts
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (76.8 MHz)
+ - description: CMU_VTS DMIC clock (from CMU_TOP)
+
+ clock-names:
+ items:
+ - const: oscclk
+ - const: dmic
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/samsung,exynos2200-cmu.h>
+
+ cmu_vts: clock-controller@15300000 {
+ compatible = "samsung,exynos2200-cmu-vts";
+ reg = <0x15300000 0x8000>;
+ #clock-cells = <1>;
+
+ clocks = <&oscclk>,
+ <&cmu_top CLK_DOUT_CMU_VTS_DMIC>;
+ clock-names = "oscclk", "dmic";
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/samsung,exynos7870-cmu.yaml b/Documentation/devicetree/bindings/clock/samsung,exynos7870-cmu.yaml
new file mode 100644
index 000000000000..3c58712f12b9
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/samsung,exynos7870-cmu.yaml
@@ -0,0 +1,227 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/samsung,exynos7870-cmu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Samsung Exynos7870 SoC clock controller
+
+maintainers:
+ - Kaustabh Chakraborty <kauschluss@disroot.org>
+
+description: |
+ Exynos7870 clock controller is comprised of several CMU units, generating
+ clocks for different domains. Those CMU units are modeled as separate device
+ tree nodes, and might depend on each other. The root clock in that root tree
+ is an external clock: OSCCLK (26 MHz). This external clock must be defined
+ as a fixed-rate clock in dts.
+
+ Each clock is assigned an identifier and client nodes can use this identifier
+ to specify the clock which they consume. All clocks available for usage
+ in clock consumer nodes are defined as preprocessor macros in
+ include/dt-bindings/clock/samsung,exynos7870-cmu.h header.
+
+properties:
+ compatible:
+ enum:
+ - samsung,exynos7870-cmu-mif
+ - samsung,exynos7870-cmu-dispaud
+ - samsung,exynos7870-cmu-fsys
+ - samsung,exynos7870-cmu-g3d
+ - samsung,exynos7870-cmu-isp
+ - samsung,exynos7870-cmu-mfcmscl
+ - samsung,exynos7870-cmu-peri
+
+ clocks:
+ minItems: 1
+ maxItems: 10
+
+ clock-names:
+ minItems: 1
+ maxItems: 10
+
+ "#clock-cells":
+ const: 1
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - clocks
+ - clock-names
+ - "#clock-cells"
+ - reg
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: samsung,exynos7870-cmu-mif
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (26 MHz)
+
+ clock-names:
+ items:
+ - const: oscclk
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: samsung,exynos7870-cmu-dispaud
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (26 MHz)
+ - description: CMU_DISPAUD bus clock (from CMU_MIF)
+ - description: DECON external clock (from CMU_MIF)
+ - description: DECON vertical clock (from CMU_MIF)
+
+ clock-names:
+ items:
+ - const: oscclk
+ - const: bus
+ - const: decon_eclk
+ - const: decon_vclk
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: samsung,exynos7870-cmu-fsys
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (26 MHz)
+ - description: CMU_FSYS bus clock (from CMU_MIF)
+ - description: USB20DRD clock (from CMU_MIF)
+
+ clock-names:
+ items:
+ - const: oscclk
+ - const: bus
+ - const: usb20drd
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: samsung,exynos7870-cmu-g3d
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (26 MHz)
+ - description: G3D switch clock (from CMU_MIF)
+
+ clock-names:
+ items:
+ - const: oscclk
+ - const: switch
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: samsung,exynos7870-cmu-isp
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (26 MHz)
+ - description: ISP camera clock (from CMU_MIF)
+ - description: ISP clock (from CMU_MIF)
+ - description: ISP VRA clock (from CMU_MIF)
+
+ clock-names:
+ items:
+ - const: oscclk
+ - const: cam
+ - const: isp
+ - const: vra
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: samsung,exynos7870-cmu-mfcmscl
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (26 MHz)
+ - description: MSCL clock (from CMU_MIF)
+ - description: MFC clock (from CMU_MIF)
+
+ clock-names:
+ items:
+ - const: oscclk
+ - const: mfc
+ - const: mscl
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: samsung,exynos7870-cmu-peri
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (26 MHz)
+ - description: CMU_PERI bus clock (from CMU_MIF)
+ - description: SPI0 clock (from CMU_MIF)
+ - description: SPI1 clock (from CMU_MIF)
+ - description: SPI2 clock (from CMU_MIF)
+ - description: SPI3 clock (from CMU_MIF)
+ - description: SPI4 clock (from CMU_MIF)
+ - description: UART0 clock (from CMU_MIF)
+ - description: UART1 clock (from CMU_MIF)
+ - description: UART2 clock (from CMU_MIF)
+
+ clock-names:
+ items:
+ - const: oscclk
+ - const: bus
+ - const: spi0
+ - const: spi1
+ - const: spi2
+ - const: spi3
+ - const: spi4
+ - const: uart0
+ - const: uart1
+ - const: uart2
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/samsung,exynos7870-cmu.h>
+
+ cmu_peri: clock-controller@101f0000 {
+ compatible = "samsung,exynos7870-cmu-peri";
+ reg = <0x101f0000 0x1000>;
+ #clock-cells = <1>;
+
+ clock-names = "oscclk", "bus", "spi0", "spi1", "spi2",
+ "spi3", "spi4", "uart0", "uart1", "uart2";
+ clocks = <&oscclk>,
+ <&cmu_mif CLK_GOUT_MIF_CMU_PERI_BUS>,
+ <&cmu_mif CLK_GOUT_MIF_CMU_PERI_SPI0>,
+ <&cmu_mif CLK_GOUT_MIF_CMU_PERI_SPI1>,
+ <&cmu_mif CLK_GOUT_MIF_CMU_PERI_SPI2>,
+ <&cmu_mif CLK_GOUT_MIF_CMU_PERI_SPI3>,
+ <&cmu_mif CLK_GOUT_MIF_CMU_PERI_SPI4>,
+ <&cmu_mif CLK_GOUT_MIF_CMU_PERI_UART0>,
+ <&cmu_mif CLK_GOUT_MIF_CMU_PERI_UART1>,
+ <&cmu_mif CLK_GOUT_MIF_CMU_PERI_UART2>;
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/samsung,exynos850-clock.yaml b/Documentation/devicetree/bindings/clock/samsung,exynos850-clock.yaml
index c752c8985a53..cdc5ded59fe5 100644
--- a/Documentation/devicetree/bindings/clock/samsung,exynos850-clock.yaml
+++ b/Documentation/devicetree/bindings/clock/samsung,exynos850-clock.yaml
@@ -36,6 +36,8 @@ properties:
- samsung,exynos850-cmu-aud
- samsung,exynos850-cmu-cmgp
- samsung,exynos850-cmu-core
+ - samsung,exynos850-cmu-cpucl0
+ - samsung,exynos850-cmu-cpucl1
- samsung,exynos850-cmu-dpu
- samsung,exynos850-cmu-g3d
- samsung,exynos850-cmu-hsi
@@ -156,6 +158,46 @@ allOf:
properties:
compatible:
contains:
+ const: samsung,exynos850-cmu-cpucl0
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (26 MHz)
+ - description: CPUCL0 switch clock (from CMU_TOP)
+ - description: CPUCL0 debug clock (from CMU_TOP)
+
+ clock-names:
+ items:
+ - const: oscclk
+ - const: dout_cpucl0_switch
+ - const: dout_cpucl0_dbg
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: samsung,exynos850-cmu-cpucl1
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (26 MHz)
+ - description: CPUCL1 switch clock (from CMU_TOP)
+ - description: CPUCL1 debug clock (from CMU_TOP)
+
+ clock-names:
+ items:
+ - const: oscclk
+ - const: dout_cpucl1_switch
+ - const: dout_cpucl1_dbg
+
+ - if:
+ properties:
+ compatible:
+ contains:
const: samsung,exynos850-cmu-dpu
then:
diff --git a/Documentation/devicetree/bindings/clock/samsung,exynos8895-clock.yaml b/Documentation/devicetree/bindings/clock/samsung,exynos8895-clock.yaml
new file mode 100644
index 000000000000..111de33ce00b
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/samsung,exynos8895-clock.yaml
@@ -0,0 +1,239 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/samsung,exynos8895-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Samsung Exynos8895 SoC clock controller
+
+maintainers:
+ - Ivaylo Ivanov <ivo.ivanov.ivanov1@gmail.com>
+ - Chanwoo Choi <cw00.choi@samsung.com>
+ - Krzysztof Kozlowski <krzk@kernel.org>
+
+description: |
+ Exynos8895 clock controller is comprised of several CMU units, generating
+ clocks for different domains. Those CMU units are modeled as separate device
+ tree nodes, and might depend on each other. The root clock in that root tree
+ is an external clock: OSCCLK (26 MHz). This external clock must be defined
+ as a fixed-rate clock in dts.
+
+ CMU_TOP is a top-level CMU, where all base clocks are prepared using PLLs and
+ dividers; all other clocks of function blocks (other CMUs) are usually
+ derived from CMU_TOP.
+
+ Each clock is assigned an identifier and client nodes can use this identifier
+ to specify the clock which they consume. All clocks available for usage
+ in clock consumer nodes are defined as preprocessor macros in
+ 'include/dt-bindings/clock/samsung,exynos8895.h' header.
+
+properties:
+ compatible:
+ enum:
+ - samsung,exynos8895-cmu-fsys0
+ - samsung,exynos8895-cmu-fsys1
+ - samsung,exynos8895-cmu-peric0
+ - samsung,exynos8895-cmu-peric1
+ - samsung,exynos8895-cmu-peris
+ - samsung,exynos8895-cmu-top
+
+ clocks:
+ minItems: 1
+ maxItems: 16
+
+ clock-names:
+ minItems: 1
+ maxItems: 16
+
+ "#clock-cells":
+ const: 1
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - clocks
+ - clock-names
+ - reg
+ - "#clock-cells"
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: samsung,exynos8895-cmu-fsys0
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (26 MHz)
+ - description: CMU_FSYS0 BUS clock (from CMU_TOP)
+ - description: CMU_FSYS0 DPGTC clock (from CMU_TOP)
+ - description: CMU_FSYS0 MMC_EMBD clock (from CMU_TOP)
+ - description: CMU_FSYS0 UFS_EMBD clock (from CMU_TOP)
+ - description: CMU_FSYS0 USBDRD30 clock (from CMU_TOP)
+
+ clock-names:
+ items:
+ - const: oscclk
+ - const: bus
+ - const: dpgtc
+ - const: mmc
+ - const: ufs
+ - const: usbdrd30
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: samsung,exynos8895-cmu-fsys1
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (26 MHz)
+ - description: CMU_FSYS1 BUS clock (from CMU_TOP)
+ - description: CMU_FSYS1 PCIE clock (from CMU_TOP)
+ - description: CMU_FSYS1 UFS_CARD clock (from CMU_TOP)
+ - description: CMU_FSYS1 MMC_CARD clock (from CMU_TOP)
+
+ clock-names:
+ items:
+ - const: oscclk
+ - const: bus
+ - const: pcie
+ - const: ufs
+ - const: mmc
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: samsung,exynos8895-cmu-peric0
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (26 MHz)
+ - description: CMU_PERIC0 BUS clock (from CMU_TOP)
+ - description: CMU_PERIC0 UART_DBG clock (from CMU_TOP)
+ - description: CMU_PERIC0 USI00 clock (from CMU_TOP)
+ - description: CMU_PERIC0 USI01 clock (from CMU_TOP)
+ - description: CMU_PERIC0 USI02 clock (from CMU_TOP)
+ - description: CMU_PERIC0 USI03 clock (from CMU_TOP)
+
+ clock-names:
+ items:
+ - const: oscclk
+ - const: bus
+ - const: uart
+ - const: usi0
+ - const: usi1
+ - const: usi2
+ - const: usi3
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: samsung,exynos8895-cmu-peric1
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (26 MHz)
+ - description: CMU_PERIC1 BUS clock (from CMU_TOP)
+ - description: CMU_PERIC1 SPEEDY2 clock (from CMU_TOP)
+ - description: CMU_PERIC1 SPI_CAM0 clock (from CMU_TOP)
+ - description: CMU_PERIC1 SPI_CAM1 clock (from CMU_TOP)
+ - description: CMU_PERIC1 UART_BT clock (from CMU_TOP)
+ - description: CMU_PERIC1 USI04 clock (from CMU_TOP)
+ - description: CMU_PERIC1 USI05 clock (from CMU_TOP)
+ - description: CMU_PERIC1 USI06 clock (from CMU_TOP)
+ - description: CMU_PERIC1 USI07 clock (from CMU_TOP)
+ - description: CMU_PERIC1 USI08 clock (from CMU_TOP)
+ - description: CMU_PERIC1 USI09 clock (from CMU_TOP)
+ - description: CMU_PERIC1 USI10 clock (from CMU_TOP)
+ - description: CMU_PERIC1 USI11 clock (from CMU_TOP)
+ - description: CMU_PERIC1 USI12 clock (from CMU_TOP)
+ - description: CMU_PERIC1 USI13 clock (from CMU_TOP)
+
+ clock-names:
+ items:
+ - const: oscclk
+ - const: bus
+ - const: speedy
+ - const: cam0
+ - const: cam1
+ - const: uart
+ - const: usi4
+ - const: usi5
+ - const: usi6
+ - const: usi7
+ - const: usi8
+ - const: usi9
+ - const: usi10
+ - const: usi11
+ - const: usi12
+ - const: usi13
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: samsung,exynos8895-cmu-peris
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (26 MHz)
+ - description: CMU_PERIS BUS clock (from CMU_TOP)
+
+ clock-names:
+ items:
+ - const: oscclk
+ - const: bus
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: samsung,exynos8895-cmu-top
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (26 MHz)
+
+ clock-names:
+ items:
+ - const: oscclk
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/samsung,exynos8895.h>
+
+ cmu_fsys1: clock-controller@11400000 {
+ compatible = "samsung,exynos8895-cmu-fsys1";
+ reg = <0x11400000 0x8000>;
+ #clock-cells = <1>;
+
+ clocks = <&oscclk>,
+ <&cmu_top CLK_DOUT_CMU_FSYS1_BUS>,
+ <&cmu_top CLK_DOUT_CMU_FSYS1_PCIE>,
+ <&cmu_top CLK_DOUT_CMU_FSYS1_UFS_CARD>,
+ <&cmu_top CLK_DOUT_CMU_FSYS1_MMC_CARD>;
+ clock-names = "oscclk", "bus", "pcie", "ufs", "mmc";
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/samsung,exynos990-clock.yaml b/Documentation/devicetree/bindings/clock/samsung,exynos990-clock.yaml
new file mode 100644
index 000000000000..5cd2d80b8ed6
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/samsung,exynos990-clock.yaml
@@ -0,0 +1,164 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/samsung,exynos990-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Samsung Exynos990 SoC clock controller
+
+maintainers:
+ - Igor Belwon <igor.belwon@mentallysanemainliners.org>
+ - Chanwoo Choi <cw00.choi@samsung.com>
+ - Krzysztof Kozlowski <krzk@kernel.org>
+
+description: |
+ Exynos990 clock controller is comprised of several CMU units, generating
+ clocks for different domains. Those CMU units are modeled as separate device
+ tree nodes, and might depend on each other. The root clock in that root tree
+ is an external clock: OSCCLK (26 MHz). This external clock must be defined
+ as a fixed-rate clock in dts.
+
+ CMU_TOP is a top-level CMU, where all base clocks are prepared using PLLs and
+ dividers; all other clocks of function blocks (other CMUs) are usually
+ derived from CMU_TOP.
+
+ Each clock is assigned an identifier and client nodes can use this identifier
+ to specify the clock which they consume. All clocks available for usage
+ in clock consumer nodes are defined as preprocessor macros in
+ 'include/dt-bindings/clock/samsung,exynos990.h' header.
+
+properties:
+ compatible:
+ enum:
+ - samsung,exynos990-cmu-peric1
+ - samsung,exynos990-cmu-peric0
+ - samsung,exynos990-cmu-hsi0
+ - samsung,exynos990-cmu-peris
+ - samsung,exynos990-cmu-top
+
+ clocks:
+ minItems: 1
+ maxItems: 5
+
+ clock-names:
+ minItems: 1
+ maxItems: 5
+
+ "#clock-cells":
+ const: 1
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - clocks
+ - clock-names
+ - "#clock-cells"
+ - reg
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - samsung,exynos990-cmu-peric1
+ - samsung,exynos990-cmu-peric0
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (26 MHz)
+ - description: Connectivity Peripheral 0/1 bus clock (from CMU_TOP)
+ - description: Connectivity Peripheral 0/1 IP clock (from CMU_TOP)
+
+ clock-names:
+ items:
+ - const: oscclk
+ - const: bus
+ - const: ip
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: samsung,exynos990-cmu-hsi0
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (26 MHz)
+ - description: CMU_HSI0 BUS clock (from CMU_TOP)
+ - description: CMU_HSI0 USB31DRD clock (from CMU_TOP)
+ - description: CMU_HSI0 USBDP_DEBUG clock (from CMU_TOP)
+ - description: CMU_HSI0 DPGTC clock (from CMU_TOP)
+
+ clock-names:
+ items:
+ - const: oscclk
+ - const: bus
+ - const: usb31drd
+ - const: usbdp_debug
+ - const: dpgtc
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: samsung,exynos990-cmu-peris
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (26 MHz)
+ - description: CMU_PERIS BUS clock (from CMU_TOP)
+
+ clock-names:
+ items:
+ - const: oscclk
+ - const: bus
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: samsung,exynos990-cmu-top
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (26 MHz)
+
+ clock-names:
+ items:
+ - const: oscclk
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/samsung,exynos990.h>
+
+ cmu_hsi0: clock-controller@10a00000 {
+ compatible = "samsung,exynos990-cmu-hsi0";
+ reg = <0x10a00000 0x8000>;
+ #clock-cells = <1>;
+
+ clocks = <&oscclk>,
+ <&cmu_top CLK_DOUT_CMU_HSI0_BUS>,
+ <&cmu_top CLK_DOUT_CMU_HSI0_USB31DRD>,
+ <&cmu_top CLK_DOUT_CMU_HSI0_USBDP_DEBUG>,
+ <&cmu_top CLK_DOUT_CMU_HSI0_DPGTC>;
+ clock-names = "oscclk",
+ "bus",
+ "usb31drd",
+ "usbdp_debug",
+ "dpgtc";
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/samsung,exynosautov9-clock.yaml b/Documentation/devicetree/bindings/clock/samsung,exynosautov9-clock.yaml
index 55c4f94a14d1..32f39e543b36 100644
--- a/Documentation/devicetree/bindings/clock/samsung,exynosautov9-clock.yaml
+++ b/Documentation/devicetree/bindings/clock/samsung,exynosautov9-clock.yaml
@@ -35,6 +35,7 @@ properties:
- samsung,exynosautov9-cmu-top
- samsung,exynosautov9-cmu-busmc
- samsung,exynosautov9-cmu-core
+ - samsung,exynosautov9-cmu-dpum
- samsung,exynosautov9-cmu-fsys0
- samsung,exynosautov9-cmu-fsys1
- samsung,exynosautov9-cmu-fsys2
@@ -113,6 +114,24 @@ allOf:
properties:
compatible:
contains:
+ const: samsung,exynosautov9-cmu-dpum
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (26 MHz)
+ - description: DPU Main bus clock (from CMU_TOP)
+
+ clock-names:
+ items:
+ - const: oscclk
+ - const: bus
+
+ - if:
+ properties:
+ compatible:
+ contains:
const: samsung,exynosautov9-cmu-fsys0
then:
diff --git a/Documentation/devicetree/bindings/clock/samsung,exynosautov920-clock.yaml b/Documentation/devicetree/bindings/clock/samsung,exynosautov920-clock.yaml
new file mode 100644
index 000000000000..5bf905f88a1a
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/samsung,exynosautov920-clock.yaml
@@ -0,0 +1,298 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/samsung,exynosautov920-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Samsung ExynosAuto v920 SoC clock controller
+
+maintainers:
+ - Sunyeal Hong <sunyeal.hong@samsung.com>
+ - Shin Son <shin.son@samsung.com>
+ - Chanwoo Choi <cw00.choi@samsung.com>
+ - Krzysztof Kozlowski <krzk@kernel.org>
+ - Sylwester Nawrocki <s.nawrocki@samsung.com>
+
+description: |
+ ExynosAuto v920 clock controller is comprised of several CMU units, generating
+ clocks for different domains. Those CMU units are modeled as separate device
+ tree nodes, and might depend on each other. Root clocks in that clock tree are
+ two external clocks:: OSCCLK/XTCXO (38.4 MHz) and RTCCLK/XrtcXTI (32768 Hz).
+ The external OSCCLK must be defined as fixed-rate clock in dts.
+
+ CMU_TOP is a top-level CMU, where all base clocks are prepared using PLLs and
+ dividers; all other clocks of function blocks (other CMUs) are usually
+ derived from CMU_TOP.
+
+ Each clock is assigned an identifier and client nodes can use this identifier
+ to specify the clock which they consume. All clocks available for usage
+ in clock consumer nodes are defined as preprocessor macros in
+ 'include/dt-bindings/clock/samsung,exynosautov920.h' header.
+
+properties:
+ compatible:
+ enum:
+ - samsung,exynosautov920-cmu-cpucl0
+ - samsung,exynosautov920-cmu-cpucl1
+ - samsung,exynosautov920-cmu-cpucl2
+ - samsung,exynosautov920-cmu-hsi0
+ - samsung,exynosautov920-cmu-hsi1
+ - samsung,exynosautov920-cmu-hsi2
+ - samsung,exynosautov920-cmu-m2m
+ - samsung,exynosautov920-cmu-mfc
+ - samsung,exynosautov920-cmu-misc
+ - samsung,exynosautov920-cmu-peric0
+ - samsung,exynosautov920-cmu-peric1
+ - samsung,exynosautov920-cmu-top
+
+ clocks:
+ minItems: 1
+ maxItems: 5
+
+ clock-names:
+ minItems: 1
+ maxItems: 5
+
+ "#clock-cells":
+ const: 1
+
+ reg:
+ maxItems: 1
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: samsung,exynosautov920-cmu-top
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (38.4 MHz)
+
+ clock-names:
+ items:
+ - const: oscclk
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - samsung,exynosautov920-cmu-cpucl0
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (38.4 MHz)
+ - description: CMU_CPUCL0 SWITCH clock (from CMU_TOP)
+ - description: CMU_CPUCL0 CLUSTER clock (from CMU_TOP)
+ - description: CMU_CPUCL0 DBG clock (from CMU_TOP)
+
+ clock-names:
+ items:
+ - const: oscclk
+ - const: switch
+ - const: cluster
+ - const: dbg
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - samsung,exynosautov920-cmu-cpucl1
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (38.4 MHz)
+ - description: CMU_CPUCL1 SWITCH clock (from CMU_TOP)
+ - description: CMU_CPUCL1 CLUSTER clock (from CMU_TOP)
+
+ clock-names:
+ items:
+ - const: oscclk
+ - const: switch
+ - const: cluster
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - samsung,exynosautov920-cmu-cpucl2
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (38.4 MHz)
+ - description: CMU_CPUCL2 SWITCH clock (from CMU_TOP)
+ - description: CMU_CPUCL2 CLUSTER clock (from CMU_TOP)
+
+ clock-names:
+ items:
+ - const: oscclk
+ - const: switch
+ - const: cluster
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - samsung,exynosautov920-cmu-peric0
+ - samsung,exynosautov920-cmu-peric1
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (38.4 MHz)
+ - description: CMU_PERICn NOC clock (from CMU_TOP)
+ - description: CMU_PERICn IP clock (from CMU_TOP)
+
+ clock-names:
+ items:
+ - const: oscclk
+ - const: noc
+ - const: ip
+
+ - if:
+ properties:
+ compatible:
+ enum:
+ - samsung,exynosautov920-cmu-misc
+ - samsung,exynosautov920-cmu-hsi0
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (38.4 MHz)
+ - description: CMU_MISC/CMU_HSI0 NOC clock (from CMU_TOP)
+
+ clock-names:
+ items:
+ - const: oscclk
+ - const: noc
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: samsung,exynosautov920-cmu-hsi1
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (38.4 MHz)
+ - description: CMU_HSI1 NOC clock (from CMU_TOP)
+ - description: CMU_HSI1 USBDRD clock (from CMU_TOP)
+ - description: CMU_HSI1 MMC_CARD clock (from CMU_TOP)
+
+ clock-names:
+ items:
+ - const: oscclk
+ - const: noc
+ - const: usbdrd
+ - const: mmc_card
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: samsung,exynosautov920-cmu-hsi2
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (38.4 MHz)
+ - description: CMU_HSI2 NOC clock (from CMU_TOP)
+ - description: CMU_HSI2 NOC UFS clock (from CMU_TOP)
+ - description: CMU_HSI2 UFS EMBD clock (from CMU_TOP)
+ - description: CMU_HSI2 ETHERNET clock (from CMU_TOP)
+
+ clock-names:
+ items:
+ - const: oscclk
+ - const: noc
+ - const: ufs
+ - const: embd
+ - const: ethernet
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: samsung,exynosautov920-cmu-m2m
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (38.4 MHz)
+ - description: CMU_M2M NOC clock (from CMU_TOP)
+ - description: CMU_M2M JPEG clock (from CMU_TOP)
+
+ clock-names:
+ items:
+ - const: oscclk
+ - const: noc
+ - const: jpeg
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: samsung,exynosautov920-cmu-mfc
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (38.4 MHz)
+ - description: CMU_MFC MFC clock (from CMU_TOP)
+ - description: CMU_MFC WFD clock (from CMU_TOP)
+
+ clock-names:
+ items:
+ - const: oscclk
+ - const: mfc
+ - const: wfd
+
+required:
+ - compatible
+ - "#clock-cells"
+ - clocks
+ - clock-names
+ - reg
+
+additionalProperties: false
+
+examples:
+ # Clock controller node for CMU_PERIC0
+ - |
+ #include <dt-bindings/clock/samsung,exynosautov920.h>
+
+ cmu_peric0: clock-controller@10800000 {
+ compatible = "samsung,exynosautov920-cmu-peric0";
+ reg = <0x10800000 0x8000>;
+ #clock-cells = <1>;
+
+ clocks = <&xtcxo>,
+ <&cmu_top DOUT_CLKCMU_PERIC0_NOC>,
+ <&cmu_top DOUT_CLKCMU_PERIC0_IP>;
+ clock-names = "oscclk",
+ "noc",
+ "ip";
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/samsung,s2mps11.yaml b/Documentation/devicetree/bindings/clock/samsung,s2mps11.yaml
index d5296e6053a1..91d455155a60 100644
--- a/Documentation/devicetree/bindings/clock/samsung,s2mps11.yaml
+++ b/Documentation/devicetree/bindings/clock/samsung,s2mps11.yaml
@@ -25,6 +25,7 @@ description: |
properties:
compatible:
enum:
+ - samsung,s2mpg10-clk
- samsung,s2mps11-clk
- samsung,s2mps13-clk # S2MPS13 and S2MPS15
- samsung,s2mps14-clk
diff --git a/Documentation/devicetree/bindings/clock/samsung,s3c6400-clock.yaml b/Documentation/devicetree/bindings/clock/samsung,s3c6400-clock.yaml
new file mode 100644
index 000000000000..0fcc0c963f8f
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/samsung,s3c6400-clock.yaml
@@ -0,0 +1,57 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/samsung,s3c6400-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Samsung S3C6400 SoC clock controller
+
+maintainers:
+ - Krzysztof Kozlowski <krzk@kernel.org>
+
+description: |
+ There are several clocks that are generated outside the SoC. It is expected
+ that they are defined using standard clock bindings with following
+ clock-output-names and/or provided as clock inputs to this clock controller:
+ - "fin_pll" - PLL input clock (xtal/extclk) - required,
+ - "xusbxti" - USB xtal - required,
+ - "iiscdclk0" - I2S0 codec clock - optional,
+ - "iiscdclk1" - I2S1 codec clock - optional,
+ - "iiscdclk2" - I2S2 codec clock - optional,
+ - "pcmcdclk0" - PCM0 codec clock - optional,
+ - "pcmcdclk1" - PCM1 codec clock - optional, only S3C6410.
+
+ All available clocks are defined as preprocessor macros in
+ include/dt-bindings/clock/samsung,s3c64xx-clock.h header.
+
+properties:
+ compatible:
+ enum:
+ - samsung,s3c6400-clock
+ - samsung,s3c6410-clock
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ "#clock-cells":
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - "#clock-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-controller@7e00f000 {
+ compatible = "samsung,s3c6410-clock";
+ reg = <0x7e00f000 0x1000>;
+ #clock-cells = <1>;
+ clocks = <&fin_pll>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/samsung,s3c64xx-clock.txt b/Documentation/devicetree/bindings/clock/samsung,s3c64xx-clock.txt
deleted file mode 100644
index 872ee8e0f041..000000000000
--- a/Documentation/devicetree/bindings/clock/samsung,s3c64xx-clock.txt
+++ /dev/null
@@ -1,76 +0,0 @@
-* Samsung S3C64xx Clock Controller
-
-The S3C64xx clock controller generates and supplies clock to various controllers
-within the SoC. The clock binding described here is applicable to all SoCs in
-the S3C64xx family.
-
-Required Properties:
-
-- compatible: should be one of the following.
- - "samsung,s3c6400-clock" - controller compatible with S3C6400 SoC.
- - "samsung,s3c6410-clock" - controller compatible with S3C6410 SoC.
-
-- reg: physical base address of the controller and length of memory mapped
- region.
-
-- #clock-cells: should be 1.
-
-Each clock is assigned an identifier and client nodes can use this identifier
-to specify the clock which they consume. Some of the clocks are available only
-on a particular S3C64xx SoC and this is specified where applicable.
-
-All available clocks are defined as preprocessor macros in
-dt-bindings/clock/samsung,s3c64xx-clock.h header and can be used in device
-tree sources.
-
-External clocks:
-
-There are several clocks that are generated outside the SoC. It is expected
-that they are defined using standard clock bindings with following
-clock-output-names:
- - "fin_pll" - PLL input clock (xtal/extclk) - required,
- - "xusbxti" - USB xtal - required,
- - "iiscdclk0" - I2S0 codec clock - optional,
- - "iiscdclk1" - I2S1 codec clock - optional,
- - "iiscdclk2" - I2S2 codec clock - optional,
- - "pcmcdclk0" - PCM0 codec clock - optional,
- - "pcmcdclk1" - PCM1 codec clock - optional, only S3C6410.
-
-Example: Clock controller node:
-
- clock: clock-controller@7e00f000 {
- compatible = "samsung,s3c6410-clock";
- reg = <0x7e00f000 0x1000>;
- #clock-cells = <1>;
- };
-
-Example: Required external clocks:
-
- fin_pll: clock-fin-pll {
- compatible = "fixed-clock";
- clock-output-names = "fin_pll";
- clock-frequency = <12000000>;
- #clock-cells = <0>;
- };
-
- xusbxti: clock-xusbxti {
- compatible = "fixed-clock";
- clock-output-names = "xusbxti";
- clock-frequency = <48000000>;
- #clock-cells = <0>;
- };
-
-Example: UART controller node that consumes the clock generated by the clock
- controller (refer to the standard clock bindings for information about
- "clocks" and "clock-names" properties):
-
- uart0: serial@7f005000 {
- compatible = "samsung,s3c6400-uart";
- reg = <0x7f005000 0x100>;
- interrupt-parent = <&vic1>;
- interrupts = <5>;
- clock-names = "uart", "clk_uart_baud2",
- "clk_uart_baud3";
- clocks = <&clock PCLK_UART0>, <&clocks PCLK_UART0>,
- <&clock SCLK_UART>;
- };
diff --git a/Documentation/devicetree/bindings/clock/silabs,si514.txt b/Documentation/devicetree/bindings/clock/silabs,si514.txt
deleted file mode 100644
index a4f28ec86f35..000000000000
--- a/Documentation/devicetree/bindings/clock/silabs,si514.txt
+++ /dev/null
@@ -1,24 +0,0 @@
-Binding for Silicon Labs 514 programmable I2C clock generator.
-
-Reference
-This binding uses the common clock binding[1]. Details about the device can be
-found in the datasheet[2].
-
-[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
-[2] Si514 datasheet
- https://www.silabs.com/Support%20Documents/TechnicalDocs/si514.pdf
-
-Required properties:
- - compatible: Shall be "silabs,si514"
- - reg: I2C device address.
- - #clock-cells: From common clock bindings: Shall be 0.
-
-Optional properties:
- - clock-output-names: From common clock bindings. Recommended to be "si514".
-
-Example:
- si514: clock-generator@55 {
- reg = <0x55>;
- #clock-cells = <0>;
- compatible = "silabs,si514";
- };
diff --git a/Documentation/devicetree/bindings/clock/silabs,si5341.txt b/Documentation/devicetree/bindings/clock/silabs,si5341.txt
deleted file mode 100644
index ce55aba0ce22..000000000000
--- a/Documentation/devicetree/bindings/clock/silabs,si5341.txt
+++ /dev/null
@@ -1,175 +0,0 @@
-Binding for Silicon Labs Si5340, Si5341 Si5342, Si5344 and Si5345 programmable
-i2c clock generator.
-
-Reference
-[1] Si5341 Data Sheet
- https://www.silabs.com/documents/public/data-sheets/Si5341-40-D-DataSheet.pdf
-[2] Si5341 Reference Manual
- https://www.silabs.com/documents/public/reference-manuals/Si5341-40-D-RM.pdf
-[3] Si5345 Reference Manual
- https://www.silabs.com/documents/public/reference-manuals/Si5345-44-42-D-RM.pdf
-
-The Si5341 and Si5340 are programmable i2c clock generators with up to 10 output
-clocks. The chip contains a PLL that sources 5 (or 4) multisynth clocks, which
-in turn can be directed to any of the 10 (or 4) outputs through a divider.
-The internal structure of the clock generators can be found in [2].
-The Si5345 is similar to the Si5341 with the addition of fractional input
-dividers and automatic input selection, as described in [3].
-The Si5342 and Si5344 are smaller versions of the Si5345, with 2 or 4 outputs.
-
-The driver can be used in "as is" mode, reading the current settings from the
-chip at boot, in case you have a (pre-)programmed device. If the PLL is not
-configured when the driver probes, it assumes the driver must fully initialize
-it.
-
-The device type, speed grade and revision are determined runtime by probing.
-
-The driver currently does not support any fancy input configurations. They can
-still be programmed into the chip and the driver will leave them "as is".
-
-==I2C device node==
-
-Required properties:
-- compatible: shall be one of the following:
- "silabs,si5340" - Si5340 A/B/C/D
- "silabs,si5341" - Si5341 A/B/C/D
- "silabs,si5342" - Si5342 A/B/C/D
- "silabs,si5344" - Si5344 A/B/C/D
- "silabs,si5345" - Si5345 A/B/C/D
-- reg: i2c device address, usually 0x74
-- #clock-cells: from common clock binding; shall be set to 2.
- The first value is "0" for outputs, "1" for synthesizers.
- The second value is the output or synthesizer index.
-- clocks: from common clock binding; list of parent clock handles,
- corresponding to inputs. Use a fixed clock for the "xtal" input.
- At least one must be present.
-- clock-names: One of: "xtal", "in0", "in1", "in2"
-
-Optional properties:
-- vdd-supply: Regulator node for VDD
-- vdda-supply: Regulator node for VDDA
-- vdds-supply: Regulator node for VDDS
-- silabs,pll-m-num, silabs,pll-m-den: Numerator and denominator for PLL
- feedback divider. Must be such that the PLL output is in the valid range. For
- example, to create 14GHz from a 48MHz xtal, use m-num=14000 and m-den=48. Only
- the fraction matters, using 3500 and 12 will deliver the exact same result.
- If these are not specified, and the PLL is not yet programmed when the driver
- probes, the PLL will be set to 14GHz.
-- silabs,reprogram: When present, the driver will always assume the device must
- be initialized, and always performs the soft-reset routine. Since this will
- temporarily stop all output clocks, don't do this if the chip is generating
- the CPU clock for example.
-- silabs,xaxb-ext-clk: When present, indicates that the XA/XB pins are used
- in EXTCLK (external reference clock) rather than XTAL (crystal) mode.
-- interrupts: Interrupt for INTRb pin.
-- silabs,iovdd-33: When present, indicates that the I2C lines are using 3.3V
- rather than 1.8V thresholds.
-- vddoX-supply (where X is an output index): Regulator node for VDDO for the
- specified output. The driver selects the output VDD_SEL setting based on this
- voltage.
-- #address-cells: shall be set to 1.
-- #size-cells: shall be set to 0.
-
-
-== Child nodes: Outputs ==
-
-The child nodes list the output clocks.
-
-Each of the clock outputs can be overwritten individually by using a child node.
-If a child node for a clock output is not set, the configuration remains
-unchanged.
-
-Required child node properties:
-- reg: number of clock output.
-
-Optional child node properties:
-- silabs,format: Output format, one of:
- 1 = differential (defaults to LVDS levels)
- 2 = low-power (defaults to HCSL levels)
- 4 = LVCMOS
-- silabs,common-mode: Manually override output common mode, see [2] for values
-- silabs,amplitude: Manually override output amplitude, see [2] for values
-- silabs,synth-master: boolean. If present, this output is allowed to change the
- multisynth frequency dynamically.
-- silabs,silabs,disable-high: boolean. If set, the clock output is driven HIGH
- when disabled, otherwise it's driven LOW.
-
-==Example==
-
-/* 48MHz reference crystal */
-ref48: ref48M {
- compatible = "fixed-clock";
- #clock-cells = <0>;
- clock-frequency = <48000000>;
-};
-
-i2c-master-node {
- /* Programmable clock (for logic) */
- si5341: clock-generator@74 {
- reg = <0x74>;
- compatible = "silabs,si5341";
- #clock-cells = <2>;
- #address-cells = <1>;
- #size-cells = <0>;
- clocks = <&ref48>;
- clock-names = "xtal";
-
- silabs,pll-m-num = <14000>; /* PLL at 14.0 GHz */
- silabs,pll-m-den = <48>;
- silabs,reprogram; /* Chips are not programmed, always reset */
-
- out@0 {
- reg = <0>;
- silabs,format = <1>; /* LVDS 3v3 */
- silabs,common-mode = <3>;
- silabs,amplitude = <3>;
- silabs,synth-master;
- };
-
- /*
- * Output 6 configuration:
- * LVDS 1v8
- */
- out@6 {
- reg = <6>;
- silabs,format = <1>; /* LVDS 1v8 */
- silabs,common-mode = <13>;
- silabs,amplitude = <3>;
- };
-
- /*
- * Output 8 configuration:
- * HCSL 3v3
- */
- out@8 {
- reg = <8>;
- silabs,format = <2>;
- silabs,common-mode = <11>;
- silabs,amplitude = <3>;
- };
- };
-};
-
-some-video-node {
- /* Standard clock bindings */
- clock-names = "pixel";
- clocks = <&si5341 0 7>; /* Output 7 */
-
- /* Set output 7 to use syntesizer 3 as its parent */
- assigned-clocks = <&si5341 0 7>, <&si5341 1 3>;
- assigned-clock-parents = <&si5341 1 3>;
- /* Set output 7 to 148.5 MHz using a synth frequency of 594 MHz */
- assigned-clock-rates = <148500000>, <594000000>;
-};
-
-some-audio-node {
- clock-names = "i2s-clk";
- clocks = <&si5341 0 0>;
- /*
- * since output 0 is a synth-master, the synth will be automatically set
- * to an appropriate frequency when the audio driver requests another
- * frequency. We give control over synth 2 to this output here.
- */
- assigned-clocks = <&si5341 0 0>;
- assigned-clock-parents = <&si5341 1 2>;
-};
diff --git a/Documentation/devicetree/bindings/clock/silabs,si5341.yaml b/Documentation/devicetree/bindings/clock/silabs,si5341.yaml
new file mode 100644
index 000000000000..d6416bded3d5
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/silabs,si5341.yaml
@@ -0,0 +1,223 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/silabs,si5341.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Silicon Labs Si5340/1/2/4/5 programmable i2c clock generator
+
+maintainers:
+ - Mike Looijmans <mike.looijmans@topic.nl>
+
+description: >
+ Silicon Labs Si5340, Si5341 Si5342, Si5344 and Si5345 programmable i2c clock
+ generator.
+
+ Reference
+ [1] Si5341 Data Sheet
+ https://www.silabs.com/documents/public/data-sheets/Si5341-40-D-DataSheet.pdf
+ [2] Si5341 Reference Manual
+ https://www.silabs.com/documents/public/reference-manuals/Si5341-40-D-RM.pdf
+ [3] Si5345 Reference Manual
+ https://www.silabs.com/documents/public/reference-manuals/Si5345-44-42-D-RM.pdf
+
+ The Si5341 and Si5340 are programmable i2c clock generators with up to 10 output
+ clocks. The chip contains a PLL that sources 5 (or 4) multisynth clocks, which
+ in turn can be directed to any of the 10 (or 4) outputs through a divider.
+ The internal structure of the clock generators can be found in [2].
+ The Si5345 is similar to the Si5341 with the addition of fractional input
+ dividers and automatic input selection, as described in [3].
+ The Si5342 and Si5344 are smaller versions of the Si5345, with 2 or 4 outputs.
+
+ The driver can be used in "as is" mode, reading the current settings from the
+ chip at boot, in case you have a (pre-)programmed device. If the PLL is not
+ configured when the driver probes, it assumes the driver must fully initialize
+ it.
+
+ The device type, speed grade and revision are determined runtime by probing.
+
+properties:
+ compatible:
+ enum:
+ - silabs,si5340
+ - silabs,si5341
+ - silabs,si5342
+ - silabs,si5344
+ - silabs,si5345
+
+ reg:
+ maxItems: 1
+
+ "#clock-cells":
+ const: 2
+ description: >
+ The first value is "0" for outputs, "1" for synthesizers.
+
+ The second value is the output or synthesizer index.
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+ clocks:
+ minItems: 1
+ maxItems: 4
+
+ clock-names:
+ minItems: 1
+ items:
+ - const: xtal
+ - const: in0
+ - const: in1
+ - const: in2
+
+ clock-output-names: true
+
+ interrupts:
+ maxItems: 1
+ description: Interrupt for INTRb pin
+
+ vdd-supply:
+ description: Regulator node for VDD
+
+ vdda-supply:
+ description: Regulator node for VDDA
+
+ vdds-supply:
+ description: Regulator node for VDDS
+
+ silabs,pll-m-num:
+ description:
+ Numerator for PLL feedback divider. Must be such that the PLL output is in
+ the valid range. For example, to create 14GHz from a 48MHz xtal, use
+ m-num=14000 and m-den=48. Only the fraction matters, using 3500 and 12
+ will deliver the exact same result. If these are not specified, and the
+ PLL is not yet programmed when the driver probes, the PLL will be set to
+ 14GHz.
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ silabs,pll-m-den:
+ description: Denominator for PLL feedback divider
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ silabs,reprogram:
+ description: Always perform soft-reset and reinitialize PLL
+ type: boolean
+
+ silabs,xaxb-ext-clk:
+ description: Use XA/XB pins as external reference clock
+ type: boolean
+
+ silabs,iovdd-33:
+ description: I2C lines use 3.3V thresholds
+ type: boolean
+
+patternProperties:
+ "^vddo[0-9]-supply$": true
+
+ "^out@[0-9]$":
+ description: >
+ Output-specific override nodes
+
+ Each of the clock outputs can be overwritten individually by using a child
+ node. If a child node for a clock output is not set, the configuration
+ remains unchanged.
+ type: object
+ additionalProperties: false
+
+ properties:
+ reg:
+ description: Number of clock output
+ maximum: 9
+
+ always-on:
+ description: Set to keep the clock output always running
+ type: boolean
+
+ silabs,format:
+ description: Output format
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [1, 2, 4]
+
+ silabs,common-mode:
+ description: Override output common mode
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ silabs,amplitude:
+ description: Override output amplitude
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ silabs,synth-master:
+ description: Allow dynamic multisynth rate control
+ type: boolean
+
+ silabs,disable-high:
+ description: Drive output HIGH when disabled
+ type: boolean
+
+ required:
+ - reg
+
+required:
+ - compatible
+ - reg
+ - "#clock-cells"
+ - "#address-cells"
+ - "#size-cells"
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ clock-generator@74 {
+ reg = <0x74>;
+ compatible = "silabs,si5341";
+ #clock-cells = <2>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&ref48>;
+ clock-names = "xtal";
+
+ silabs,pll-m-num = <14000>; /* PLL at 14.0 GHz */
+ silabs,pll-m-den = <48>;
+ silabs,reprogram; /* Chips are not programmed, always reset */
+
+ out@0 {
+ reg = <0>;
+ silabs,format = <1>; /* LVDS 3v3 */
+ silabs,common-mode = <3>;
+ silabs,amplitude = <3>;
+ silabs,synth-master;
+ };
+
+ /*
+ * Output 6 configuration:
+ * LVDS 1v8
+ */
+ out@6 {
+ reg = <6>;
+ silabs,format = <1>; /* LVDS 1v8 */
+ silabs,common-mode = <13>;
+ silabs,amplitude = <3>;
+ };
+
+ /*
+ * Output 8 configuration:
+ * HCSL 3v3
+ */
+ out@8 {
+ reg = <8>;
+ silabs,format = <2>;
+ silabs,common-mode = <11>;
+ silabs,amplitude = <3>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/clock/silabs,si5351.txt b/Documentation/devicetree/bindings/clock/silabs,si5351.txt
deleted file mode 100644
index bfda6af76bee..000000000000
--- a/Documentation/devicetree/bindings/clock/silabs,si5351.txt
+++ /dev/null
@@ -1,126 +0,0 @@
-Binding for Silicon Labs Si5351a/b/c programmable i2c clock generator.
-
-Reference
-[1] Si5351A/B/C Data Sheet
- https://www.skyworksinc.com/-/media/Skyworks/SL/documents/public/data-sheets/Si5351-B.pdf
-
-The Si5351a/b/c are programmable i2c clock generators with up to 8 output
-clocks. Si5351a also has a reduced pin-count package (MSOP10) where only
-3 output clocks are accessible. The internal structure of the clock
-generators can be found in [1].
-
-==I2C device node==
-
-Required properties:
-- compatible: shall be one of the following:
- "silabs,si5351a" - Si5351a, QFN20 package
- "silabs,si5351a-msop" - Si5351a, MSOP10 package
- "silabs,si5351b" - Si5351b, QFN20 package
- "silabs,si5351c" - Si5351c, QFN20 package
-- reg: i2c device address, shall be 0x60 or 0x61.
-- #clock-cells: from common clock binding; shall be set to 1.
-- clocks: from common clock binding; list of parent clock
- handles, shall be xtal reference clock or xtal and clkin for
- si5351c only. Corresponding clock input names are "xtal" and
- "clkin" respectively.
-- #address-cells: shall be set to 1.
-- #size-cells: shall be set to 0.
-
-Optional properties:
-- silabs,pll-source: pair of (number, source) for each pll. Allows
- to overwrite clock source of pll A (number=0) or B (number=1).
-
-==Child nodes==
-
-Each of the clock outputs can be overwritten individually by
-using a child node to the I2C device node. If a child node for a clock
-output is not set, the eeprom configuration is not overwritten.
-
-Required child node properties:
-- reg: number of clock output.
-
-Optional child node properties:
-- silabs,clock-source: source clock of the output divider stage N, shall be
- 0 = multisynth N
- 1 = multisynth 0 for output clocks 0-3, else multisynth4
- 2 = xtal
- 3 = clkin (si5351c only)
-- silabs,drive-strength: output drive strength in mA, shall be one of {2,4,6,8}.
-- silabs,multisynth-source: source pll A(0) or B(1) of corresponding multisynth
- divider.
-- silabs,pll-master: boolean, multisynth can change pll frequency.
-- silabs,pll-reset: boolean, clock output can reset its pll.
-- silabs,disable-state : clock output disable state, shall be
- 0 = clock output is driven LOW when disabled
- 1 = clock output is driven HIGH when disabled
- 2 = clock output is FLOATING (HIGH-Z) when disabled
- 3 = clock output is NEVER disabled
-
-==Example==
-
-/* 25MHz reference crystal */
-ref25: ref25M {
- compatible = "fixed-clock";
- #clock-cells = <0>;
- clock-frequency = <25000000>;
-};
-
-i2c-master-node {
-
- /* Si5351a msop10 i2c clock generator */
- si5351a: clock-generator@60 {
- compatible = "silabs,si5351a-msop";
- reg = <0x60>;
- #address-cells = <1>;
- #size-cells = <0>;
- #clock-cells = <1>;
-
- /* connect xtal input to 25MHz reference */
- clocks = <&ref25>;
- clock-names = "xtal";
-
- /* connect xtal input as source of pll0 and pll1 */
- silabs,pll-source = <0 0>, <1 0>;
-
- /*
- * overwrite clkout0 configuration with:
- * - 8mA output drive strength
- * - pll0 as clock source of multisynth0
- * - multisynth0 as clock source of output divider
- * - multisynth0 can change pll0
- * - set initial clock frequency of 74.25MHz
- */
- clkout0 {
- reg = <0>;
- silabs,drive-strength = <8>;
- silabs,multisynth-source = <0>;
- silabs,clock-source = <0>;
- silabs,pll-master;
- clock-frequency = <74250000>;
- };
-
- /*
- * overwrite clkout1 configuration with:
- * - 4mA output drive strength
- * - pll1 as clock source of multisynth1
- * - multisynth1 as clock source of output divider
- * - multisynth1 can change pll1
- */
- clkout1 {
- reg = <1>;
- silabs,drive-strength = <4>;
- silabs,multisynth-source = <1>;
- silabs,clock-source = <0>;
- pll-master;
- };
-
- /*
- * overwrite clkout2 configuration with:
- * - xtal as clock source of output divider
- */
- clkout2 {
- reg = <2>;
- silabs,clock-source = <2>;
- };
- };
-};
diff --git a/Documentation/devicetree/bindings/clock/silabs,si5351.yaml b/Documentation/devicetree/bindings/clock/silabs,si5351.yaml
new file mode 100644
index 000000000000..d3e0ec29993b
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/silabs,si5351.yaml
@@ -0,0 +1,265 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/silabs,si5351.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Silicon Labs Si5351A/B/C programmable I2C clock generators
+
+description: |
+ The Silicon Labs Si5351A/B/C are programmable I2C clock generators with up to
+ 8 outputs. Si5351A also has a reduced pin-count package (10-MSOP) where only 3
+ output clocks are accessible. The internal structure of the clock generators
+ can be found in [1].
+
+ [1] Si5351A/B/C Data Sheet
+ https://www.skyworksinc.com/-/media/Skyworks/SL/documents/public/data-sheets/Si5351-B.pdf
+
+maintainers:
+ - Alvin Šipraga <alsi@bang-olufsen.dk>
+
+properties:
+ compatible:
+ enum:
+ - silabs,si5351a # Si5351A, 20-QFN package
+ - silabs,si5351a-msop # Si5351A, 10-MSOP package
+ - silabs,si5351b # Si5351B, 20-QFN package
+ - silabs,si5351c # Si5351C, 20-QFN package
+
+ reg:
+ enum:
+ - 0x60
+ - 0x61
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+ "#clock-cells":
+ const: 1
+
+ clocks:
+ minItems: 1
+ maxItems: 2
+
+ clock-names:
+ minItems: 1
+ items:
+ - const: xtal
+ - const: clkin
+
+ silabs,pll-source:
+ $ref: /schemas/types.yaml#/definitions/uint32-matrix
+ description: |
+ A list of cell pairs containing a PLL index and its source. Allows to
+ overwrite clock source of the internal PLLs.
+ items:
+ items:
+ - description: PLL A (0) or PLL B (1)
+ enum: [ 0, 1 ]
+ - description: PLL source, XTAL (0) or CLKIN (1, Si5351C only).
+ enum: [ 0, 1 ]
+
+ silabs,pll-reset-mode:
+ $ref: /schemas/types.yaml#/definitions/uint32-matrix
+ minItems: 1
+ maxItems: 2
+ description: A list of cell pairs containing a PLL index and its reset mode.
+ items:
+ items:
+ - description: PLL A (0) or PLL B (1)
+ enum: [ 0, 1 ]
+ - description: |
+ Reset mode for the PLL. Mode can be one of:
+
+ 0 - reset whenever PLL rate is adjusted (default mode)
+ 1 - do not reset when PLL rate is adjusted
+
+ In mode 1, the PLL is only reset if the silabs,pll-reset is
+ specified in one of the clock output child nodes that also sources
+ the PLL. This mode may be preferable if output clocks are expected
+ to be adjusted without glitches.
+ enum: [ 0, 1 ]
+
+patternProperties:
+ "^clkout@[0-7]$":
+ type: object
+
+ additionalProperties: false
+
+ properties:
+ reg:
+ description: Clock output number.
+
+ clock-frequency: true
+
+ silabs,clock-source:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: |
+ Source clock of the this output's divider stage.
+
+ 0 - use multisynth N for this output, where N is the output number
+ 1 - use either multisynth 0 (if output number is 0-3) or multisynth 4
+ (otherwise) for this output
+ 2 - use XTAL for this output
+ 3 - use CLKIN for this output (Si5351C only)
+
+ silabs,drive-strength:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [ 2, 4, 6, 8 ]
+ description: Output drive strength in mA.
+
+ silabs,multisynth-source:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [ 0, 1 ]
+ description:
+ Source PLL A (0) or B (1) for the corresponding multisynth divider.
+
+ silabs,pll-master:
+ type: boolean
+ description: |
+ The frequency of the source PLL is allowed to be changed by the
+ multisynth when setting the rate of this clock output.
+
+ silabs,pll-reset:
+ type: boolean
+ description: Reset the source PLL when enabling this clock output.
+
+ silabs,disable-state:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [ 0, 1, 2, 3 ]
+ description: |
+ Clock output disable state. The state can be one of:
+
+ 0 - clock output is driven LOW when disabled
+ 1 - clock output is driven HIGH when disabled
+ 2 - clock output is FLOATING (HIGH-Z) when disabled
+ 3 - clock output is never disabled
+
+ allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: silabs,si5351a-msop
+ then:
+ properties:
+ reg:
+ maximum: 2
+ else:
+ properties:
+ reg:
+ maximum: 7
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: silabs,si5351c
+ then:
+ properties:
+ silabs,clock-source:
+ enum: [ 0, 1, 2, 3 ]
+ else:
+ properties:
+ silabs,clock-source:
+ enum: [ 0, 1, 2 ]
+
+ required:
+ - reg
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - silabs,si5351a
+ - silabs,si5351a-msop
+ - silabs,si5351b
+ then:
+ properties:
+ clocks:
+ maxItems: 1
+ clock-names:
+ maxItems: 1
+
+required:
+ - reg
+ - "#address-cells"
+ - "#size-cells"
+ - "#clock-cells"
+ - clocks
+ - clock-names
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ clock-generator@60 {
+ compatible = "silabs,si5351a-msop";
+ reg = <0x60>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #clock-cells = <1>;
+
+ /* Connect XTAL input to 25MHz reference */
+ clocks = <&ref25>;
+ clock-names = "xtal";
+
+ /* Use XTAL input as source of PLL0 and PLL1 */
+ silabs,pll-source = <0 0>, <1 0>;
+
+ /* Don't reset PLL1 on rate adjustment */
+ silabs,pll-reset-mode = <1 1>;
+
+ /*
+ * Overwrite CLK0 configuration with:
+ * - 8 mA output drive strength
+ * - PLL0 as clock source of multisynth 0
+ * - Multisynth 0 as clock source of output divider
+ * - Multisynth 0 can change PLL0
+ * - Set initial clock frequency of 74.25MHz
+ */
+ clkout@0 {
+ reg = <0>;
+ silabs,drive-strength = <8>;
+ silabs,multisynth-source = <0>;
+ silabs,clock-source = <0>;
+ silabs,pll-master;
+ clock-frequency = <74250000>;
+ };
+
+ /*
+ * Overwrite CLK1 configuration with:
+ * - 4 mA output drive strength
+ * - PLL1 as clock source of multisynth 1
+ * - Multisynth 1 as clock source of output divider
+ * - Multisynth 1 can change PLL1
+ * - Reset PLL1 when enabling this clock output
+ */
+ clkout@1 {
+ reg = <1>;
+ silabs,drive-strength = <4>;
+ silabs,multisynth-source = <1>;
+ silabs,clock-source = <0>;
+ silabs,pll-master;
+ silabs,pll-reset;
+ };
+
+ /*
+ * Overwrite CLK2 configuration with:
+ * - XTAL as clock source of output divider
+ */
+ clkout@2 {
+ reg = <2>;
+ silabs,clock-source = <2>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/clock/silabs,si544.txt b/Documentation/devicetree/bindings/clock/silabs,si544.txt
deleted file mode 100644
index b86535b80920..000000000000
--- a/Documentation/devicetree/bindings/clock/silabs,si544.txt
+++ /dev/null
@@ -1,25 +0,0 @@
-Binding for Silicon Labs 544 programmable I2C clock generator.
-
-Reference
-This binding uses the common clock binding[1]. Details about the device can be
-found in the datasheet[2].
-
-[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
-[2] Si544 datasheet
- https://www.silabs.com/documents/public/data-sheets/si544-datasheet.pdf
-
-Required properties:
- - compatible: One of "silabs,si514a", "silabs,si514b" "silabs,si514c" according
- to the speed grade of the chip.
- - reg: I2C device address.
- - #clock-cells: From common clock bindings: Shall be 0.
-
-Optional properties:
- - clock-output-names: From common clock bindings. Recommended to be "si544".
-
-Example:
- si544: clock-controller@55 {
- reg = <0x55>;
- #clock-cells = <0>;
- compatible = "silabs,si544b";
- };
diff --git a/Documentation/devicetree/bindings/clock/silabs,si544.yaml b/Documentation/devicetree/bindings/clock/silabs,si544.yaml
new file mode 100644
index 000000000000..f87e71867108
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/silabs,si544.yaml
@@ -0,0 +1,54 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/silabs,si544.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Silicon Labs SI514/SI544 clock generator
+
+maintainers:
+ - Mike Looijmans <mike.looijmans@topic.nl>
+
+description: >
+ Silicon Labs 514/544 programmable I2C clock generator. Details about the device
+ can be found in the datasheet:
+
+ https://www.silabs.com/Support%20Documents/TechnicalDocs/si514.pdf
+ https://www.silabs.com/documents/public/data-sheets/si544-datasheet.pdf
+
+properties:
+ compatible:
+ enum:
+ - silabs,si514
+ - silabs,si544a
+ - silabs,si544b
+ - silabs,si544c
+
+ reg:
+ maxItems: 1
+
+ "#clock-cells":
+ const: 0
+
+ clock-output-names:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - "#clock-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ clock-controller@55 {
+ reg = <0x55>;
+ #clock-cells = <0>;
+ compatible = "silabs,si544b";
+ };
+ };
diff --git a/Documentation/devicetree/bindings/clock/silabs,si570.txt b/Documentation/devicetree/bindings/clock/silabs,si570.txt
deleted file mode 100644
index 5dda17df1ac5..000000000000
--- a/Documentation/devicetree/bindings/clock/silabs,si570.txt
+++ /dev/null
@@ -1,41 +0,0 @@
-Binding for Silicon Labs 570, 571, 598 and 599 programmable
-I2C clock generators.
-
-Reference
-This binding uses the common clock binding[1]. Details about the devices can be
-found in the data sheets[2][3].
-
-[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
-[2] Si570/571 Data Sheet
- https://www.silabs.com/Support%20Documents/TechnicalDocs/si570.pdf
-[3] Si598/599 Data Sheet
- https://www.silabs.com/Support%20Documents/TechnicalDocs/si598-99.pdf
-
-Required properties:
- - compatible: Shall be one of "silabs,si570", "silabs,si571",
- "silabs,si598", "silabs,si599"
- - reg: I2C device address.
- - #clock-cells: From common clock bindings: Shall be 0.
- - factory-fout: Factory set default frequency. This frequency is part specific.
- The correct frequency for the part used has to be provided in
- order to generate the correct output frequencies. For more
- details, please refer to the data sheet.
- - temperature-stability: Temperature stability of the device in PPM. Should be
- one of: 7, 20, 50 or 100.
-
-Optional properties:
- - clock-output-names: From common clock bindings. Recommended to be "si570".
- - clock-frequency: Output frequency to generate. This defines the output
- frequency set during boot. It can be reprogrammed during
- runtime through the common clock framework.
- - silabs,skip-recall: Do not perform NVM->RAM recall operation. It will rely
- on hardware loading of RAM from NVM at power on.
-
-Example:
- si570: clock-generator@5d {
- #clock-cells = <0>;
- compatible = "silabs,si570";
- temperature-stability = <50>;
- reg = <0x5d>;
- factory-fout = <156250000>;
- };
diff --git a/Documentation/devicetree/bindings/clock/silabs,si570.yaml b/Documentation/devicetree/bindings/clock/silabs,si570.yaml
new file mode 100644
index 000000000000..90e2f79e2b2a
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/silabs,si570.yaml
@@ -0,0 +1,80 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/silabs,si570.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Silicon Labs Si570/Si571/Si598/Si599 programmable I2C clock generator
+
+maintainers:
+ - Soren Brinkmann <soren.brinkmann@xilinx.com>
+
+description: >
+ Silicon Labs 570, 571, 598 and 599 programmable I2C clock generators. Details
+ about the devices can be found in the data sheets[1][2].
+
+ [1] Si570/571 Data Sheet
+ https://www.silabs.com/Support%20Documents/TechnicalDocs/si570.pdf
+ [2] Si598/599 Data Sheet
+ https://www.silabs.com/Support%20Documents/TechnicalDocs/si598-99.pdf
+
+properties:
+ compatible:
+ enum:
+ - silabs,si570
+ - silabs,si571
+ - silabs,si598
+ - silabs,si599
+
+ reg:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 0
+
+ factory-fout:
+ description: Factory-set default frequency in Hz.
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ temperature-stability:
+ description: Temperature stability of the device in PPM.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum:
+ - 7
+ - 20
+ - 50
+ - 100
+
+ clock-output-names:
+ maxItems: 1
+
+ clock-frequency:
+ description: Output frequency to generate at boot; can be reprogrammed at runtime.
+
+ silabs,skip-recall:
+ description: Skip the NVM-to-RAM recall operation during boot.
+ type: boolean
+
+required:
+ - compatible
+ - reg
+ - '#clock-cells'
+ - factory-fout
+ - temperature-stability
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ clock-generator@5d {
+ compatible = "silabs,si570";
+ reg = <0x5d>;
+ #clock-cells = <0>;
+ temperature-stability = <50>;
+ factory-fout = <156250000>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/clock/sophgo,cv1800-clk.yaml b/Documentation/devicetree/bindings/clock/sophgo,cv1800-clk.yaml
new file mode 100644
index 000000000000..379ce3e9e391
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/sophgo,cv1800-clk.yaml
@@ -0,0 +1,55 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/sophgo,cv1800-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sophgo CV1800/SG2000 Series Clock Controller
+
+maintainers:
+ - Inochi Amaoto <inochiama@outlook.com>
+
+properties:
+ compatible:
+ oneOf:
+ - enum:
+ - sophgo,cv1800b-clk
+ - sophgo,cv1812h-clk
+ - sophgo,sg2000-clk
+ - items:
+ - const: sophgo,sg2002-clk
+ - const: sophgo,sg2000-clk
+ - const: sophgo,cv1800-clk
+ deprecated: true
+ - const: sophgo,cv1810-clk
+ deprecated: true
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ "#clock-cells":
+ const: 1
+ description:
+ See <dt-bindings/clock/sophgo,cv1800.h> for valid indices.
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - "#clock-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-controller@3002000 {
+ compatible = "sophgo,cv1800-clk";
+ reg = <0x03002000 0x1000>;
+ clocks = <&osc>;
+ #clock-cells = <1>;
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/sophgo,sg2042-clkgen.yaml b/Documentation/devicetree/bindings/clock/sophgo,sg2042-clkgen.yaml
new file mode 100644
index 000000000000..e7a9255bcb58
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/sophgo,sg2042-clkgen.yaml
@@ -0,0 +1,61 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/sophgo,sg2042-clkgen.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sophgo SG2042 Clock Generator for divider/mux/gate
+
+maintainers:
+ - Chen Wang <unicorn_wang@outlook.com>
+
+properties:
+ compatible:
+ const: sophgo,sg2042-clkgen
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: Main PLL
+ - description: Fixed PLL
+ - description: DDR PLL 0
+ - description: DDR PLL 1
+
+ clock-names:
+ items:
+ - const: mpll
+ - const: fpll
+ - const: dpll0
+ - const: dpll1
+
+ '#clock-cells':
+ const: 1
+ description:
+ See <dt-bindings/clock/sophgo,sg2042-clkgen.h> for valid indices.
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-controller@30012000 {
+ compatible = "sophgo,sg2042-clkgen";
+ reg = <0x30012000 0x1000>;
+ clocks = <&pllclk 0>,
+ <&pllclk 1>,
+ <&pllclk 2>,
+ <&pllclk 3>;
+ clock-names = "mpll",
+ "fpll",
+ "dpll0",
+ "dpll1";
+ #clock-cells = <1>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/sophgo,sg2042-pll.yaml b/Documentation/devicetree/bindings/clock/sophgo,sg2042-pll.yaml
new file mode 100644
index 000000000000..1a417a627dd2
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/sophgo,sg2042-pll.yaml
@@ -0,0 +1,53 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/sophgo,sg2042-pll.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sophgo SG2042 PLL Clock Generator
+
+maintainers:
+ - Chen Wang <unicorn_wang@outlook.com>
+
+properties:
+ compatible:
+ const: sophgo,sg2042-pll
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: Oscillator(Clock Generation IC) for Main/Fixed PLL (25 MHz)
+ - description: Oscillator(Clock Generation IC) for DDR PLL 0 (25 MHz)
+ - description: Oscillator(Clock Generation IC) for DDR PLL 1 (25 MHz)
+
+ clock-names:
+ items:
+ - const: cgi_main
+ - const: cgi_dpll0
+ - const: cgi_dpll1
+
+ '#clock-cells':
+ const: 1
+ description:
+ See <dt-bindings/clock/sophgo,sg2042-pll.h> for valid indices.
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-controller@10000000 {
+ compatible = "sophgo,sg2042-pll";
+ reg = <0x10000000 0x10000>;
+ clocks = <&cgi_main>, <&cgi_dpll0>, <&cgi_dpll1>;
+ clock-names = "cgi_main", "cgi_dpll0", "cgi_dpll1";
+ #clock-cells = <1>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/sophgo,sg2042-rpgate.yaml b/Documentation/devicetree/bindings/clock/sophgo,sg2042-rpgate.yaml
new file mode 100644
index 000000000000..1491fb8ef6a3
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/sophgo,sg2042-rpgate.yaml
@@ -0,0 +1,49 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/sophgo,sg2042-rpgate.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sophgo SG2042 Gate Clock Generator for RP(riscv processors) subsystem
+
+maintainers:
+ - Chen Wang <unicorn_wang@outlook.com>
+
+properties:
+ compatible:
+ const: sophgo,sg2042-rpgate
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: Gate clock for RP subsystem
+
+ clock-names:
+ items:
+ - const: rpgate
+
+ '#clock-cells':
+ const: 1
+ description:
+ See <dt-bindings/clock/sophgo,sg2042-rpgate.h> for valid indices.
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-controller@20000000 {
+ compatible = "sophgo,sg2042-rpgate";
+ reg = <0x20000000 0x10000>;
+ clocks = <&clkgen 85>;
+ clock-names = "rpgate";
+ #clock-cells = <1>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/sophgo,sg2044-clk.yaml b/Documentation/devicetree/bindings/clock/sophgo,sg2044-clk.yaml
new file mode 100644
index 000000000000..272e58bdb62c
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/sophgo,sg2044-clk.yaml
@@ -0,0 +1,99 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/sophgo,sg2044-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sophgo SG2044 Clock Controller
+
+maintainers:
+ - Inochi Amaoto <inochiama@gmail.com>
+
+description: |
+ The Sophgo SG2044 clock controller requires an external oscillator
+ as input clock.
+
+ All available clocks are defined as preprocessor macros in
+ include/dt-bindings/clock/sophgo,sg2044-clk.h
+
+properties:
+ compatible:
+ const: sophgo,sg2044-clk
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: fpll0
+ - description: fpll1
+ - description: fpll2
+ - description: dpll0
+ - description: dpll1
+ - description: dpll2
+ - description: dpll3
+ - description: dpll4
+ - description: dpll5
+ - description: dpll6
+ - description: dpll7
+ - description: mpll0
+ - description: mpll1
+ - description: mpll2
+ - description: mpll3
+ - description: mpll4
+ - description: mpll5
+
+ clock-names:
+ items:
+ - const: fpll0
+ - const: fpll1
+ - const: fpll2
+ - const: dpll0
+ - const: dpll1
+ - const: dpll2
+ - const: dpll3
+ - const: dpll4
+ - const: dpll5
+ - const: dpll6
+ - const: dpll7
+ - const: mpll0
+ - const: mpll1
+ - const: mpll2
+ - const: mpll3
+ - const: mpll4
+ - const: mpll5
+
+ '#clock-cells':
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/sophgo,sg2044-pll.h>
+
+ clock-controller@50002000 {
+ compatible = "sophgo,sg2044-clk";
+ reg = <0x50002000 0x1000>;
+ #clock-cells = <1>;
+ clocks = <&syscon CLK_FPLL0>, <&syscon CLK_FPLL1>,
+ <&syscon CLK_FPLL2>, <&syscon CLK_DPLL0>,
+ <&syscon CLK_DPLL1>, <&syscon CLK_DPLL2>,
+ <&syscon CLK_DPLL3>, <&syscon CLK_DPLL4>,
+ <&syscon CLK_DPLL5>, <&syscon CLK_DPLL6>,
+ <&syscon CLK_DPLL7>, <&syscon CLK_MPLL0>,
+ <&syscon CLK_MPLL1>, <&syscon CLK_MPLL2>,
+ <&syscon CLK_MPLL3>, <&syscon CLK_MPLL4>,
+ <&syscon CLK_MPLL5>;
+ clock-names = "fpll0", "fpll1", "fpll2", "dpll0",
+ "dpll1", "dpll2", "dpll3", "dpll4",
+ "dpll5", "dpll6", "dpll7", "mpll0",
+ "mpll1", "mpll2", "mpll3", "mpll4",
+ "mpll5";
+ };
diff --git a/Documentation/devicetree/bindings/clock/spacemit,k1-pll.yaml b/Documentation/devicetree/bindings/clock/spacemit,k1-pll.yaml
new file mode 100644
index 000000000000..06bafd68c00a
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/spacemit,k1-pll.yaml
@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/spacemit,k1-pll.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: SpacemiT K1 PLL
+
+maintainers:
+ - Haylen Chu <heylenay@4d2.org>
+
+properties:
+ compatible:
+ const: spacemit,k1-pll
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ description: External 24MHz oscillator
+
+ spacemit,mpmu:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description:
+ Phandle to the "Main PMU (MPMU)" syscon. It is used to check PLL
+ lock status.
+
+ "#clock-cells":
+ const: 1
+ description:
+ See <dt-bindings/clock/spacemit,k1-syscon.h> for valid indices.
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - spacemit,mpmu
+ - "#clock-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-controller@d4090000 {
+ compatible = "spacemit,k1-pll";
+ reg = <0xd4090000 0x1000>;
+ clocks = <&vctcxo_24m>;
+ spacemit,mpmu = <&sysctl_mpmu>;
+ #clock-cells = <1>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/sprd,sc9860-clk.txt b/Documentation/devicetree/bindings/clock/sprd,sc9860-clk.txt
deleted file mode 100644
index aaaf02ca2a6a..000000000000
--- a/Documentation/devicetree/bindings/clock/sprd,sc9860-clk.txt
+++ /dev/null
@@ -1,63 +0,0 @@
-Spreadtrum SC9860 Clock Binding
-------------------------
-
-Required properties:
-- compatible: should contain the following compatible strings:
- - "sprd,sc9860-pmu-gate"
- - "sprd,sc9860-pll"
- - "sprd,sc9860-ap-clk"
- - "sprd,sc9860-aon-prediv"
- - "sprd,sc9860-apahb-gate"
- - "sprd,sc9860-aon-gate"
- - "sprd,sc9860-aonsecure-clk"
- - "sprd,sc9860-agcp-gate"
- - "sprd,sc9860-gpu-clk"
- - "sprd,sc9860-vsp-clk"
- - "sprd,sc9860-vsp-gate"
- - "sprd,sc9860-cam-clk"
- - "sprd,sc9860-cam-gate"
- - "sprd,sc9860-disp-clk"
- - "sprd,sc9860-disp-gate"
- - "sprd,sc9860-apapb-gate"
-
-- #clock-cells: must be 1
-
-- clocks : Should be the input parent clock(s) phandle for the clock, this
- property here just simply shows which clock group the clocks'
- parents are in, since each clk node would represent many clocks
- which are defined in the driver. The detailed dependency
- relationship (i.e. how many parents and which are the parents)
- are implemented in driver code.
-
-Optional properties:
-
-- reg: Contain the registers base address and length. It must be configured
- only if no 'sprd,syscon' under the node.
-
-- sprd,syscon: phandle to the syscon which is in the same address area with
- the clock, and so we can get regmap for the clocks from the
- syscon device.
-
-Example:
-
- pmu_gate: pmu-gate {
- compatible = "sprd,sc9860-pmu-gate";
- sprd,syscon = <&pmu_regs>;
- clocks = <&ext_26m>;
- #clock-cells = <1>;
- };
-
- pll: pll {
- compatible = "sprd,sc9860-pll";
- sprd,syscon = <&ana_regs>;
- clocks = <&pmu_gate 0>;
- #clock-cells = <1>;
- };
-
- ap_clk: clock-controller@20000000 {
- compatible = "sprd,sc9860-ap-clk";
- reg = <0 0x20000000 0 0x400>;
- clocks = <&ext_26m>, <&pll 0>,
- <&pmu_gate 0>;
- #clock-cells = <1>;
- };
diff --git a/Documentation/devicetree/bindings/clock/sprd,sc9860-clk.yaml b/Documentation/devicetree/bindings/clock/sprd,sc9860-clk.yaml
new file mode 100644
index 000000000000..502cd723511f
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/sprd,sc9860-clk.yaml
@@ -0,0 +1,159 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/sprd,sc9860-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Spreadtrum SC9860 clock
+
+maintainers:
+ - Orson Zhai <orsonzhai@gmail.com>
+ - Baolin Wang <baolin.wang7@gmail.com>
+ - Chunyan Zhang <zhang.lyra@gmail.com>
+
+properties:
+ compatible:
+ enum:
+ - sprd,sc9860-agcp-gate
+ - sprd,sc9860-aonsecure-clk
+ - sprd,sc9860-aon-gate
+ - sprd,sc9860-aon-prediv
+ - sprd,sc9860-apahb-gate
+ - sprd,sc9860-apapb-gate
+ - sprd,sc9860-ap-clk
+ - sprd,sc9860-cam-clk
+ - sprd,sc9860-cam-gate
+ - sprd,sc9860-disp-clk
+ - sprd,sc9860-disp-gate
+ - sprd,sc9860-gpu-clk
+ - sprd,sc9860-pll
+ - sprd,sc9860-pmu-gate
+ - sprd,sc9860-vsp-clk
+ - sprd,sc9860-vsp-gate
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ minItems: 1
+ maxItems: 3
+
+ '#clock-cells':
+ const: 1
+
+ sprd,syscon:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description:
+ phandle to the syscon which is in the same address area with the
+ clock, and so we can get regmap for the clocks from the syscon device
+
+required:
+ - compatible
+ - clocks
+ - '#clock-cells'
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - sprd,sc9860-agcp-gate
+ - sprd,sc9860-aon-gate
+ - sprd,sc9860-apahb-gate
+ - sprd,sc9860-apapb-gate
+ - sprd,sc9860-cam-gate
+ - sprd,sc9860-disp-gate
+ - sprd,sc9860-gpu-clk
+ - sprd,sc9860-pll
+ - sprd,sc9860-pmu-gate
+ - sprd,sc9860-vsp-gate
+ then:
+ properties:
+ clocks:
+ maxItems: 1
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - sprd,sc9860-aonsecure-clk
+ - sprd,sc9860-cam-clk
+ - sprd,sc9860-disp-clk
+ - sprd,sc9860-vsp-clk
+ then:
+ properties:
+ clocks:
+ minItems: 2
+ maxItems: 2
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - sprd,sc9860-aon-prediv
+ - sprd,sc9860-ap-clk
+ then:
+ properties:
+ clocks:
+ minItems: 3
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - sprd,sc9860-aonsecure-clk
+ - sprd,sc9860-aon-prediv
+ - sprd,sc9860-ap-clk
+ - sprd,sc9860-cam-clk
+ - sprd,sc9860-disp-clk
+ - sprd,sc9860-gpu-clk
+ - sprd,sc9860-vsp-clk
+ then:
+ required:
+ - reg
+ properties:
+ sprd,syscon: false
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - sprd,sc9860-agcp-gate
+ - sprd,sc9860-aon-gate
+ - sprd,sc9860-apahb-gate
+ - sprd,sc9860-apapb-gate
+ - sprd,sc9860-cam-gate
+ - sprd,sc9860-disp-gate
+ - sprd,sc9860-pll
+ - sprd,sc9860-pmu-gate
+ - sprd,sc9860-vsp-gate
+ then:
+ required:
+ - sprd,syscon
+ properties:
+ reg: false
+
+additionalProperties: false
+
+examples:
+ - |
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ pmu-gate {
+ compatible = "sprd,sc9860-pmu-gate";
+ clocks = <&ext_26m>;
+ #clock-cells = <1>;
+ sprd,syscon = <&pmu_regs>;
+ };
+
+ clock-controller@20000000 {
+ compatible = "sprd,sc9860-ap-clk";
+ reg = <0 0x20000000 0 0x400>;
+ clocks = <&ext_26m>, <&pll 0>, <&pmu_gate 0>;
+ #clock-cells = <1>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/sprd,sc9863a-clk.yaml b/Documentation/devicetree/bindings/clock/sprd,sc9863a-clk.yaml
index 1703e305e6d8..a0658056c330 100644
--- a/Documentation/devicetree/bindings/clock/sprd,sc9863a-clk.yaml
+++ b/Documentation/devicetree/bindings/clock/sprd,sc9863a-clk.yaml
@@ -66,7 +66,7 @@ then:
else:
description: |
Other SC9863a clock nodes should be the child of a syscon node in
- which compatible string shoule be:
+ which compatible string should be:
"sprd,sc9863a-glbregs", "syscon", "simple-mfd"
The 'reg' property for the clock node is also required if there is a sub
diff --git a/Documentation/devicetree/bindings/clock/st,stm32-rcc.txt b/Documentation/devicetree/bindings/clock/st,stm32-rcc.txt
deleted file mode 100644
index cfa04b614d8a..000000000000
--- a/Documentation/devicetree/bindings/clock/st,stm32-rcc.txt
+++ /dev/null
@@ -1,138 +0,0 @@
-STMicroelectronics STM32 Reset and Clock Controller
-===================================================
-
-The RCC IP is both a reset and a clock controller.
-
-Please refer to clock-bindings.txt for common clock controller binding usage.
-Please also refer to reset.txt for common reset controller binding usage.
-
-Required properties:
-- compatible: Should be:
- "st,stm32f42xx-rcc"
- "st,stm32f469-rcc"
- "st,stm32f746-rcc"
- "st,stm32f769-rcc"
-
-- reg: should be register base and length as documented in the
- datasheet
-- #reset-cells: 1, see below
-- #clock-cells: 2, device nodes should specify the clock in their "clocks"
- property, containing a phandle to the clock device node, an index selecting
- between gated clocks and other clocks and an index specifying the clock to
- use.
-- clocks: External oscillator clock phandle
- - high speed external clock signal (HSE)
- - external I2S clock (I2S_CKIN)
-
-Example:
-
- rcc: rcc@40023800 {
- #reset-cells = <1>;
- #clock-cells = <2>
- compatible = "st,stm32f42xx-rcc", "st,stm32-rcc";
- reg = <0x40023800 0x400>;
- clocks = <&clk_hse>, <&clk_i2s_ckin>;
- };
-
-Specifying gated clocks
-=======================
-
-The primary index must be set to 0.
-
-The secondary index is the bit number within the RCC register bank, starting
-from the first RCC clock enable register (RCC_AHB1ENR, address offset 0x30).
-
-It is calculated as: index = register_offset / 4 * 32 + bit_offset.
-Where bit_offset is the bit offset within the register (LSB is 0, MSB is 31).
-
-To simplify the usage and to share bit definition with the reset and clock
-drivers of the RCC IP, macros are available to generate the index in
-human-readble format.
-
-For STM32F4 series, the macro are available here:
- - include/dt-bindings/mfd/stm32f4-rcc.h
-
-Example:
-
- /* Gated clock, AHB1 bit 0 (GPIOA) */
- ... {
- clocks = <&rcc 0 STM32F4_AHB1_CLOCK(GPIOA)>
- };
-
- /* Gated clock, AHB2 bit 4 (CRYP) */
- ... {
- clocks = <&rcc 0 STM32F4_AHB2_CLOCK(CRYP)>
- };
-
-Specifying other clocks
-=======================
-
-The primary index must be set to 1.
-
-The secondary index is bound with the following magic numbers:
-
- 0 SYSTICK
- 1 FCLK
- 2 CLK_LSI (low-power clock source)
- 3 CLK_LSE (generated from a 32.768 kHz low-speed external
- crystal or ceramic resonator)
- 4 CLK_HSE_RTC (HSE division factor for RTC clock)
- 5 CLK_RTC (real-time clock)
- 6 PLL_VCO_I2S (vco frequency of I2S pll)
- 7 PLL_VCO_SAI (vco frequency of SAI pll)
- 8 CLK_LCD (LCD-TFT)
- 9 CLK_I2S (I2S clocks)
- 10 CLK_SAI1 (audio clocks)
- 11 CLK_SAI2
- 12 CLK_I2SQ_PDIV (post divisor of pll i2s q divisor)
- 13 CLK_SAIQ_PDIV (post divisor of pll sai q divisor)
-
- 14 CLK_HSI (Internal ocscillator clock)
- 15 CLK_SYSCLK (System Clock)
- 16 CLK_HDMI_CEC (HDMI-CEC clock)
- 17 CLK_SPDIF (SPDIF-Rx clock)
- 18 CLK_USART1 (U(s)arts clocks)
- 19 CLK_USART2
- 20 CLK_USART3
- 21 CLK_UART4
- 22 CLK_UART5
- 23 CLK_USART6
- 24 CLK_UART7
- 25 CLK_UART8
- 26 CLK_I2C1 (I2S clocks)
- 27 CLK_I2C2
- 28 CLK_I2C3
- 29 CLK_I2C4
- 30 CLK_LPTIMER (LPTimer1 clock)
- 31 CLK_PLL_SRC
- 32 CLK_DFSDM1
- 33 CLK_ADFSDM1
- 34 CLK_F769_DSI
-)
-
-Example:
-
- /* Misc clock, FCLK */
- ... {
- clocks = <&rcc 1 STM32F4_APB1_CLOCK(TIM2)>
- };
-
-
-Specifying softreset control of devices
-=======================================
-
-Device nodes should specify the reset channel required in their "resets"
-property, containing a phandle to the reset device node and an index specifying
-which channel to use.
-The index is the bit number within the RCC registers bank, starting from RCC
-base address.
-It is calculated as: index = register_offset / 4 * 32 + bit_offset.
-Where bit_offset is the bit offset within the register.
-For example, for CRC reset:
- crc = AHB1RSTR_offset / 4 * 32 + CRCRST_bit_offset = 0x10 / 4 * 32 + 12 = 140
-
-example:
-
- timer2 {
- resets = <&rcc STM32F4_APB1_RESET(TIM2)>;
- };
diff --git a/Documentation/devicetree/bindings/clock/st,stm32-rcc.yaml b/Documentation/devicetree/bindings/clock/st,stm32-rcc.yaml
new file mode 100644
index 000000000000..f83a6120d65a
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/st,stm32-rcc.yaml
@@ -0,0 +1,144 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/st,stm32-rcc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: STMicroelectronics STM32 Reset Clock Controller
+
+maintainers:
+ - Dario Binacchi <dario.binacchi@amarulasolutions.com>
+
+description: |
+ The RCC IP is both a reset and a clock controller.
+ The reset phandle argument is the bit number within the RCC registers bank,
+ starting from RCC base address.
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - st,stm32f42xx-rcc
+ - st,stm32f746-rcc
+ - st,stm32h743-rcc
+ - const: st,stm32-rcc
+ - items:
+ - enum:
+ - st,stm32f469-rcc
+ - const: st,stm32f42xx-rcc
+ - const: st,stm32-rcc
+ - items:
+ - enum:
+ - st,stm32f769-rcc
+ - const: st,stm32f746-rcc
+ - const: st,stm32-rcc
+
+ reg:
+ maxItems: 1
+
+ '#reset-cells':
+ const: 1
+
+ '#clock-cells':
+ enum: [1, 2]
+
+ clocks:
+ minItems: 2
+ maxItems: 3
+
+ st,syscfg:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description:
+ Phandle to system configuration controller. It can be used to control the
+ power domain circuitry.
+
+ st,ssc-modfreq-hz:
+ description:
+ The modulation frequency for main PLL (in Hz)
+
+ st,ssc-moddepth-permyriad:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ The modulation rate for main PLL (in permyriad, i.e. 0.01%)
+ minimum: 25
+ maximum: 200
+
+ st,ssc-modmethod:
+ $ref: /schemas/types.yaml#/definitions/string
+ description:
+ The modulation techniques for main PLL.
+ items:
+ enum:
+ - center-spread
+ - down-spread
+
+required:
+ - compatible
+ - reg
+ - '#reset-cells'
+ - '#clock-cells'
+ - clocks
+ - st,syscfg
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: st,stm32h743-rcc
+ then:
+ properties:
+ '#clock-cells':
+ const: 1
+ description: |
+ The clock index for the specified type.
+ clocks:
+ items:
+ - description: high speed external (HSE) clock input
+ - description: low speed external (LSE) clock input
+ - description: Inter-IC sound (I2S) clock input
+ st,ssc-modfreq-hz: false
+ st,ssc-moddepth-permyriad: false
+ st,ssc-modmethod: false
+
+ else:
+ properties:
+ '#clock-cells':
+ const: 2
+ description: |
+ - The first cell is the clock type, possible values are 0 for
+ gated clocks and 1 otherwise.
+ - The second cell is the clock index for the specified type.
+ clocks:
+ items:
+ - description: high speed external (HSE) clock input
+ - description: Inter-IC sound (I2S) clock input
+
+additionalProperties: false
+
+examples:
+ # Reset and Clock Control Module node:
+ - |
+ clock-controller@40023800 {
+ compatible = "st,stm32f42xx-rcc", "st,stm32-rcc";
+ reg = <0x40023800 0x400>;
+ #clock-cells = <2>;
+ #reset-cells = <1>;
+ clocks = <&clk_hse>, <&clk_i2s_ckin>;
+ st,syscfg = <&pwrcfg>;
+ st,ssc-modfreq-hz = <10000>;
+ st,ssc-moddepth-permyriad = <200>;
+ st,ssc-modmethod = "center-spread";
+ };
+ - |
+ clock-controller@58024400 {
+ compatible = "st,stm32h743-rcc", "st,stm32-rcc";
+ reg = <0x58024400 0x400>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ clocks = <&clk_hse>, <&clk_lse>, <&clk_i2s>;
+ st,syscfg = <&pwrcfg>;
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/st,stm32h7-rcc.txt b/Documentation/devicetree/bindings/clock/st,stm32h7-rcc.txt
deleted file mode 100644
index cac24ee10b72..000000000000
--- a/Documentation/devicetree/bindings/clock/st,stm32h7-rcc.txt
+++ /dev/null
@@ -1,71 +0,0 @@
-STMicroelectronics STM32H7 Reset and Clock Controller
-=====================================================
-
-The RCC IP is both a reset and a clock controller.
-
-Please refer to clock-bindings.txt for common clock controller binding usage.
-Please also refer to reset.txt for common reset controller binding usage.
-
-Required properties:
-- compatible: Should be:
- "st,stm32h743-rcc"
-
-- reg: should be register base and length as documented in the
- datasheet
-
-- #reset-cells: 1, see below
-
-- #clock-cells : from common clock binding; shall be set to 1
-
-- clocks: External oscillator clock phandle
- - high speed external clock signal (HSE)
- - low speed external clock signal (LSE)
- - external I2S clock (I2S_CKIN)
-
-Optional properties:
-- st,syscfg: phandle for pwrcfg, mandatory to disable/enable backup domain
- write protection (RTC clock).
-
-Example:
-
- rcc: reset-clock-controller@58024400 {
- compatible = "st,stm32h743-rcc", "st,stm32-rcc";
- reg = <0x58024400 0x400>;
- #reset-cells = <1>;
- #clock-cells = <1>;
- clocks = <&clk_hse>, <&clk_lse>, <&clk_i2s_ckin>;
-
- st,syscfg = <&pwrcfg>;
-};
-
-The peripheral clock consumer should specify the desired clock by
-having the clock ID in its "clocks" phandle cell.
-
-Example:
-
- timer5: timer@40000c00 {
- compatible = "st,stm32-timer";
- reg = <0x40000c00 0x400>;
- interrupts = <50>;
- clocks = <&rcc TIM5_CK>;
- };
-
-Specifying softreset control of devices
-=======================================
-
-Device nodes should specify the reset channel required in their "resets"
-property, containing a phandle to the reset device node and an index specifying
-which channel to use.
-The index is the bit number within the RCC registers bank, starting from RCC
-base address.
-It is calculated as: index = register_offset / 4 * 32 + bit_offset.
-Where bit_offset is the bit offset within the register.
-
-For example, for CRC reset:
- crc = AHB4RSTR_offset / 4 * 32 + CRCRST_bit_offset = 0x88 / 4 * 32 + 19 = 1107
-
-Example:
-
- timer2 {
- resets = <&rcc STM32H7_APB1L_RESET(TIM2)>;
- };
diff --git a/Documentation/devicetree/bindings/clock/st,stm32mp1-rcc.yaml b/Documentation/devicetree/bindings/clock/st,stm32mp1-rcc.yaml
index 5194be0b410e..e72f46e79b90 100644
--- a/Documentation/devicetree/bindings/clock/st,stm32mp1-rcc.yaml
+++ b/Documentation/devicetree/bindings/clock/st,stm32mp1-rcc.yaml
@@ -21,7 +21,7 @@ description: |
=================
All available clocks are defined as preprocessor macros in
- dt-bindings/clock/stm32mp1-clks.h header and can be used in device
+ include/dt-bindings/clock/stm32mp1-clks.h header and can be used in device
tree sources.
Specifying softreset control of devices
@@ -40,8 +40,8 @@ description: |
= 0x180 / 4 * 32 + 0 = 3072
The list of valid indices for STM32MP1 is available in:
- include/dt-bindings/reset-controller/stm32mp1-resets.h
- include/dt-bindings/reset-controller/stm32mp13-resets.h
+ include/dt-bindings/reset/stm32mp1-resets.h
+ include/dt-bindings/reset/stm32mp13-resets.h
This file implements defines like:
#define LTDC_R 3072
@@ -60,8 +60,14 @@ properties:
- st,stm32mp1-rcc
- st,stm32mp13-rcc
- const: syscon
- clocks: true
- clock-names: true
+
+ clocks:
+ minItems: 1
+ maxItems: 5
+
+ clock-names:
+ minItems: 1
+ maxItems: 5
reg:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/clock/st,stm32mp21-rcc.yaml b/Documentation/devicetree/bindings/clock/st,stm32mp21-rcc.yaml
new file mode 100644
index 000000000000..4368063c6709
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/st,stm32mp21-rcc.yaml
@@ -0,0 +1,199 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/st,stm32mp21-rcc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: STM32MP21 Reset Clock Controller
+
+maintainers:
+ - Gabriel Fernandez <gabriel.fernandez@foss.st.com>
+
+description: |
+ The RCC hardware block is both a reset and a clock controller.
+ RCC makes also power management (resume/suspend).
+
+ See also:
+ include/dt-bindings/clock/st,stm32mp21-rcc.h
+ include/dt-bindings/reset/st,stm32mp21-rcc.h
+
+properties:
+ compatible:
+ enum:
+ - st,stm32mp21-rcc
+
+ reg:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 1
+
+ '#reset-cells':
+ const: 1
+
+ clocks:
+ items:
+ - description: CK_SCMI_HSE High Speed External oscillator (8 to 48 MHz)
+ - description: CK_SCMI_HSI High Speed Internal oscillator (~ 64 MHz)
+ - description: CK_SCMI_MSI Low Power Internal oscillator (~ 4 MHz or ~ 16 MHz)
+ - description: CK_SCMI_LSE Low Speed External oscillator (32 KHz)
+ - description: CK_SCMI_LSI Low Speed Internal oscillator (~ 32 KHz)
+ - description: CK_SCMI_HSE_DIV2 CK_SCMI_HSE divided by 2 (could be gated)
+ - description: CK_SCMI_ICN_HS_MCU High Speed interconnect bus clock
+ - description: CK_SCMI_ICN_LS_MCU Low Speed interconnect bus clock
+ - description: CK_SCMI_ICN_SDMMC SDMMC interconnect bus clock
+ - description: CK_SCMI_ICN_DDR DDR interconnect bus clock
+ - description: CK_SCMI_ICN_DISPLAY Display interconnect bus clock
+ - description: CK_SCMI_ICN_HSL HSL interconnect bus clock
+ - description: CK_SCMI_ICN_NIC NIC interconnect bus clock
+ - description: CK_SCMI_FLEXGEN_07 flexgen clock 7
+ - description: CK_SCMI_FLEXGEN_08 flexgen clock 8
+ - description: CK_SCMI_FLEXGEN_09 flexgen clock 9
+ - description: CK_SCMI_FLEXGEN_10 flexgen clock 10
+ - description: CK_SCMI_FLEXGEN_11 flexgen clock 11
+ - description: CK_SCMI_FLEXGEN_12 flexgen clock 12
+ - description: CK_SCMI_FLEXGEN_13 flexgen clock 13
+ - description: CK_SCMI_FLEXGEN_14 flexgen clock 14
+ - description: CK_SCMI_FLEXGEN_16 flexgen clock 16
+ - description: CK_SCMI_FLEXGEN_17 flexgen clock 17
+ - description: CK_SCMI_FLEXGEN_18 flexgen clock 18
+ - description: CK_SCMI_FLEXGEN_19 flexgen clock 19
+ - description: CK_SCMI_FLEXGEN_20 flexgen clock 20
+ - description: CK_SCMI_FLEXGEN_21 flexgen clock 21
+ - description: CK_SCMI_FLEXGEN_22 flexgen clock 22
+ - description: CK_SCMI_FLEXGEN_23 flexgen clock 23
+ - description: CK_SCMI_FLEXGEN_24 flexgen clock 24
+ - description: CK_SCMI_FLEXGEN_25 flexgen clock 25
+ - description: CK_SCMI_FLEXGEN_26 flexgen clock 26
+ - description: CK_SCMI_FLEXGEN_27 flexgen clock 27
+ - description: CK_SCMI_FLEXGEN_29 flexgen clock 29
+ - description: CK_SCMI_FLEXGEN_30 flexgen clock 30
+ - description: CK_SCMI_FLEXGEN_31 flexgen clock 31
+ - description: CK_SCMI_FLEXGEN_33 flexgen clock 33
+ - description: CK_SCMI_FLEXGEN_36 flexgen clock 36
+ - description: CK_SCMI_FLEXGEN_37 flexgen clock 37
+ - description: CK_SCMI_FLEXGEN_38 flexgen clock 38
+ - description: CK_SCMI_FLEXGEN_39 flexgen clock 39
+ - description: CK_SCMI_FLEXGEN_40 flexgen clock 40
+ - description: CK_SCMI_FLEXGEN_41 flexgen clock 41
+ - description: CK_SCMI_FLEXGEN_42 flexgen clock 42
+ - description: CK_SCMI_FLEXGEN_43 flexgen clock 43
+ - description: CK_SCMI_FLEXGEN_44 flexgen clock 44
+ - description: CK_SCMI_FLEXGEN_45 flexgen clock 45
+ - description: CK_SCMI_FLEXGEN_46 flexgen clock 46
+ - description: CK_SCMI_FLEXGEN_47 flexgen clock 47
+ - description: CK_SCMI_FLEXGEN_48 flexgen clock 48
+ - description: CK_SCMI_FLEXGEN_50 flexgen clock 50
+ - description: CK_SCMI_FLEXGEN_51 flexgen clock 51
+ - description: CK_SCMI_FLEXGEN_52 flexgen clock 52
+ - description: CK_SCMI_FLEXGEN_53 flexgen clock 53
+ - description: CK_SCMI_FLEXGEN_54 flexgen clock 54
+ - description: CK_SCMI_FLEXGEN_55 flexgen clock 55
+ - description: CK_SCMI_FLEXGEN_56 flexgen clock 56
+ - description: CK_SCMI_FLEXGEN_57 flexgen clock 57
+ - description: CK_SCMI_FLEXGEN_58 flexgen clock 58
+ - description: CK_SCMI_FLEXGEN_61 flexgen clock 61
+ - description: CK_SCMI_FLEXGEN_62 flexgen clock 62
+ - description: CK_SCMI_FLEXGEN_63 flexgen clock 63
+ - description: CK_SCMI_ICN_APB1 Peripheral bridge 1
+ - description: CK_SCMI_ICN_APB2 Peripheral bridge 2
+ - description: CK_SCMI_ICN_APB3 Peripheral bridge 3
+ - description: CK_SCMI_ICN_APB4 Peripheral bridge 4
+ - description: CK_SCMI_ICN_APB5 Peripheral bridge 5
+ - description: CK_SCMI_ICN_APBDBG Peripheral bridge for debug
+ - description: CK_SCMI_TIMG1 Peripheral bridge for timer1
+ - description: CK_SCMI_TIMG2 Peripheral bridge for timer2
+
+ access-controllers:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - '#clock-cells'
+ - '#reset-cells'
+ - clocks
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/st,stm32mp21-rcc.h>
+
+ clock-controller@44200000 {
+ compatible = "st,stm32mp21-rcc";
+ reg = <0x44200000 0x10000>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ clocks = <&scmi_clk CK_SCMI_HSE>,
+ <&scmi_clk CK_SCMI_HSI>,
+ <&scmi_clk CK_SCMI_MSI>,
+ <&scmi_clk CK_SCMI_LSE>,
+ <&scmi_clk CK_SCMI_LSI>,
+ <&scmi_clk CK_SCMI_HSE_DIV2>,
+ <&scmi_clk CK_SCMI_ICN_HS_MCU>,
+ <&scmi_clk CK_SCMI_ICN_LS_MCU>,
+ <&scmi_clk CK_SCMI_ICN_SDMMC>,
+ <&scmi_clk CK_SCMI_ICN_DDR>,
+ <&scmi_clk CK_SCMI_ICN_DISPLAY>,
+ <&scmi_clk CK_SCMI_ICN_HSL>,
+ <&scmi_clk CK_SCMI_ICN_NIC>,
+ <&scmi_clk CK_SCMI_FLEXGEN_07>,
+ <&scmi_clk CK_SCMI_FLEXGEN_08>,
+ <&scmi_clk CK_SCMI_FLEXGEN_09>,
+ <&scmi_clk CK_SCMI_FLEXGEN_10>,
+ <&scmi_clk CK_SCMI_FLEXGEN_11>,
+ <&scmi_clk CK_SCMI_FLEXGEN_12>,
+ <&scmi_clk CK_SCMI_FLEXGEN_13>,
+ <&scmi_clk CK_SCMI_FLEXGEN_14>,
+ <&scmi_clk CK_SCMI_FLEXGEN_16>,
+ <&scmi_clk CK_SCMI_FLEXGEN_17>,
+ <&scmi_clk CK_SCMI_FLEXGEN_18>,
+ <&scmi_clk CK_SCMI_FLEXGEN_19>,
+ <&scmi_clk CK_SCMI_FLEXGEN_20>,
+ <&scmi_clk CK_SCMI_FLEXGEN_21>,
+ <&scmi_clk CK_SCMI_FLEXGEN_22>,
+ <&scmi_clk CK_SCMI_FLEXGEN_23>,
+ <&scmi_clk CK_SCMI_FLEXGEN_24>,
+ <&scmi_clk CK_SCMI_FLEXGEN_25>,
+ <&scmi_clk CK_SCMI_FLEXGEN_26>,
+ <&scmi_clk CK_SCMI_FLEXGEN_27>,
+ <&scmi_clk CK_SCMI_FLEXGEN_29>,
+ <&scmi_clk CK_SCMI_FLEXGEN_30>,
+ <&scmi_clk CK_SCMI_FLEXGEN_31>,
+ <&scmi_clk CK_SCMI_FLEXGEN_33>,
+ <&scmi_clk CK_SCMI_FLEXGEN_36>,
+ <&scmi_clk CK_SCMI_FLEXGEN_37>,
+ <&scmi_clk CK_SCMI_FLEXGEN_38>,
+ <&scmi_clk CK_SCMI_FLEXGEN_39>,
+ <&scmi_clk CK_SCMI_FLEXGEN_40>,
+ <&scmi_clk CK_SCMI_FLEXGEN_41>,
+ <&scmi_clk CK_SCMI_FLEXGEN_42>,
+ <&scmi_clk CK_SCMI_FLEXGEN_43>,
+ <&scmi_clk CK_SCMI_FLEXGEN_44>,
+ <&scmi_clk CK_SCMI_FLEXGEN_45>,
+ <&scmi_clk CK_SCMI_FLEXGEN_46>,
+ <&scmi_clk CK_SCMI_FLEXGEN_47>,
+ <&scmi_clk CK_SCMI_FLEXGEN_48>,
+ <&scmi_clk CK_SCMI_FLEXGEN_50>,
+ <&scmi_clk CK_SCMI_FLEXGEN_51>,
+ <&scmi_clk CK_SCMI_FLEXGEN_52>,
+ <&scmi_clk CK_SCMI_FLEXGEN_53>,
+ <&scmi_clk CK_SCMI_FLEXGEN_54>,
+ <&scmi_clk CK_SCMI_FLEXGEN_55>,
+ <&scmi_clk CK_SCMI_FLEXGEN_56>,
+ <&scmi_clk CK_SCMI_FLEXGEN_57>,
+ <&scmi_clk CK_SCMI_FLEXGEN_58>,
+ <&scmi_clk CK_SCMI_FLEXGEN_61>,
+ <&scmi_clk CK_SCMI_FLEXGEN_62>,
+ <&scmi_clk CK_SCMI_FLEXGEN_63>,
+ <&scmi_clk CK_SCMI_ICN_APB1>,
+ <&scmi_clk CK_SCMI_ICN_APB2>,
+ <&scmi_clk CK_SCMI_ICN_APB3>,
+ <&scmi_clk CK_SCMI_ICN_APB4>,
+ <&scmi_clk CK_SCMI_ICN_APB5>,
+ <&scmi_clk CK_SCMI_ICN_APBDBG>,
+ <&scmi_clk CK_SCMI_TIMG1>,
+ <&scmi_clk CK_SCMI_TIMG2>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/st,stm32mp25-rcc.yaml b/Documentation/devicetree/bindings/clock/st,stm32mp25-rcc.yaml
new file mode 100644
index 000000000000..1e3b5d218bb0
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/st,stm32mp25-rcc.yaml
@@ -0,0 +1,219 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/st,stm32mp25-rcc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: STM32MP25 Reset Clock Controller
+
+maintainers:
+ - Gabriel Fernandez <gabriel.fernandez@foss.st.com>
+
+description: |
+ The RCC hardware block is both a reset and a clock controller.
+ RCC makes also power management (resume/suspend).
+
+ See also:
+ include/dt-bindings/clock/st,stm32mp25-rcc.h
+ include/dt-bindings/reset/st,stm32mp25-rcc.h
+
+properties:
+ compatible:
+ enum:
+ - st,stm32mp25-rcc
+
+ reg:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 1
+
+ '#reset-cells':
+ const: 1
+
+ clocks:
+ items:
+ - description: CK_SCMI_HSE High Speed External oscillator (8 to 48 MHz)
+ - description: CK_SCMI_HSI High Speed Internal oscillator (~ 64 MHz)
+ - description: CK_SCMI_MSI Low Power Internal oscillator (~ 4 MHz or ~ 16 MHz)
+ - description: CK_SCMI_LSE Low Speed External oscillator (32 KHz)
+ - description: CK_SCMI_LSI Low Speed Internal oscillator (~ 32 KHz)
+ - description: CK_SCMI_HSE_DIV2 CK_SCMI_HSE divided by 2 (could be gated)
+ - description: CK_SCMI_ICN_HS_MCU High Speed interconnect bus clock
+ - description: CK_SCMI_ICN_LS_MCU Low Speed interconnect bus clock
+ - description: CK_SCMI_ICN_SDMMC SDMMC interconnect bus clock
+ - description: CK_SCMI_ICN_DDR DDR interconnect bus clock
+ - description: CK_SCMI_ICN_DISPLAY Display interconnect bus clock
+ - description: CK_SCMI_ICN_HSL HSL interconnect bus clock
+ - description: CK_SCMI_ICN_NIC NIC interconnect bus clock
+ - description: CK_SCMI_ICN_VID Video interconnect bus clock
+ - description: CK_SCMI_FLEXGEN_07 flexgen clock 7
+ - description: CK_SCMI_FLEXGEN_08 flexgen clock 8
+ - description: CK_SCMI_FLEXGEN_09 flexgen clock 9
+ - description: CK_SCMI_FLEXGEN_10 flexgen clock 10
+ - description: CK_SCMI_FLEXGEN_11 flexgen clock 11
+ - description: CK_SCMI_FLEXGEN_12 flexgen clock 12
+ - description: CK_SCMI_FLEXGEN_13 flexgen clock 13
+ - description: CK_SCMI_FLEXGEN_14 flexgen clock 14
+ - description: CK_SCMI_FLEXGEN_15 flexgen clock 15
+ - description: CK_SCMI_FLEXGEN_16 flexgen clock 16
+ - description: CK_SCMI_FLEXGEN_17 flexgen clock 17
+ - description: CK_SCMI_FLEXGEN_18 flexgen clock 18
+ - description: CK_SCMI_FLEXGEN_19 flexgen clock 19
+ - description: CK_SCMI_FLEXGEN_20 flexgen clock 20
+ - description: CK_SCMI_FLEXGEN_21 flexgen clock 21
+ - description: CK_SCMI_FLEXGEN_22 flexgen clock 22
+ - description: CK_SCMI_FLEXGEN_23 flexgen clock 23
+ - description: CK_SCMI_FLEXGEN_24 flexgen clock 24
+ - description: CK_SCMI_FLEXGEN_25 flexgen clock 25
+ - description: CK_SCMI_FLEXGEN_26 flexgen clock 26
+ - description: CK_SCMI_FLEXGEN_27 flexgen clock 27
+ - description: CK_SCMI_FLEXGEN_28 flexgen clock 28
+ - description: CK_SCMI_FLEXGEN_29 flexgen clock 29
+ - description: CK_SCMI_FLEXGEN_30 flexgen clock 30
+ - description: CK_SCMI_FLEXGEN_31 flexgen clock 31
+ - description: CK_SCMI_FLEXGEN_32 flexgen clock 32
+ - description: CK_SCMI_FLEXGEN_33 flexgen clock 33
+ - description: CK_SCMI_FLEXGEN_34 flexgen clock 34
+ - description: CK_SCMI_FLEXGEN_35 flexgen clock 35
+ - description: CK_SCMI_FLEXGEN_36 flexgen clock 36
+ - description: CK_SCMI_FLEXGEN_37 flexgen clock 37
+ - description: CK_SCMI_FLEXGEN_38 flexgen clock 38
+ - description: CK_SCMI_FLEXGEN_39 flexgen clock 39
+ - description: CK_SCMI_FLEXGEN_40 flexgen clock 40
+ - description: CK_SCMI_FLEXGEN_41 flexgen clock 41
+ - description: CK_SCMI_FLEXGEN_42 flexgen clock 42
+ - description: CK_SCMI_FLEXGEN_43 flexgen clock 43
+ - description: CK_SCMI_FLEXGEN_44 flexgen clock 44
+ - description: CK_SCMI_FLEXGEN_45 flexgen clock 45
+ - description: CK_SCMI_FLEXGEN_46 flexgen clock 46
+ - description: CK_SCMI_FLEXGEN_47 flexgen clock 47
+ - description: CK_SCMI_FLEXGEN_48 flexgen clock 48
+ - description: CK_SCMI_FLEXGEN_49 flexgen clock 49
+ - description: CK_SCMI_FLEXGEN_50 flexgen clock 50
+ - description: CK_SCMI_FLEXGEN_51 flexgen clock 51
+ - description: CK_SCMI_FLEXGEN_52 flexgen clock 52
+ - description: CK_SCMI_FLEXGEN_53 flexgen clock 53
+ - description: CK_SCMI_FLEXGEN_54 flexgen clock 54
+ - description: CK_SCMI_FLEXGEN_55 flexgen clock 55
+ - description: CK_SCMI_FLEXGEN_56 flexgen clock 56
+ - description: CK_SCMI_FLEXGEN_57 flexgen clock 57
+ - description: CK_SCMI_FLEXGEN_58 flexgen clock 58
+ - description: CK_SCMI_FLEXGEN_59 flexgen clock 59
+ - description: CK_SCMI_FLEXGEN_60 flexgen clock 60
+ - description: CK_SCMI_FLEXGEN_61 flexgen clock 61
+ - description: CK_SCMI_FLEXGEN_62 flexgen clock 62
+ - description: CK_SCMI_FLEXGEN_63 flexgen clock 63
+ - description: CK_SCMI_ICN_APB1 Peripheral bridge 1
+ - description: CK_SCMI_ICN_APB2 Peripheral bridge 2
+ - description: CK_SCMI_ICN_APB3 Peripheral bridge 3
+ - description: CK_SCMI_ICN_APB4 Peripheral bridge 4
+ - description: CK_SCMI_ICN_APBDBG Peripheral bridge for debug
+ - description: CK_SCMI_TIMG1 Peripheral bridge for timer1
+ - description: CK_SCMI_TIMG2 Peripheral bridge for timer2
+ - description: CK_SCMI_PLL3 PLL3 clock
+ - description: clk_dsi_txbyte DSI byte clock
+
+ access-controllers:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - '#clock-cells'
+ - '#reset-cells'
+ - clocks
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/st,stm32mp25-rcc.h>
+
+ clock-controller@44200000 {
+ compatible = "st,stm32mp25-rcc";
+ reg = <0x44200000 0x10000>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ clocks = <&scmi_clk CK_SCMI_HSE>,
+ <&scmi_clk CK_SCMI_HSI>,
+ <&scmi_clk CK_SCMI_MSI>,
+ <&scmi_clk CK_SCMI_LSE>,
+ <&scmi_clk CK_SCMI_LSI>,
+ <&scmi_clk CK_SCMI_HSE_DIV2>,
+ <&scmi_clk CK_SCMI_ICN_HS_MCU>,
+ <&scmi_clk CK_SCMI_ICN_LS_MCU>,
+ <&scmi_clk CK_SCMI_ICN_SDMMC>,
+ <&scmi_clk CK_SCMI_ICN_DDR>,
+ <&scmi_clk CK_SCMI_ICN_DISPLAY>,
+ <&scmi_clk CK_SCMI_ICN_HSL>,
+ <&scmi_clk CK_SCMI_ICN_NIC>,
+ <&scmi_clk CK_SCMI_ICN_VID>,
+ <&scmi_clk CK_SCMI_FLEXGEN_07>,
+ <&scmi_clk CK_SCMI_FLEXGEN_08>,
+ <&scmi_clk CK_SCMI_FLEXGEN_09>,
+ <&scmi_clk CK_SCMI_FLEXGEN_10>,
+ <&scmi_clk CK_SCMI_FLEXGEN_11>,
+ <&scmi_clk CK_SCMI_FLEXGEN_12>,
+ <&scmi_clk CK_SCMI_FLEXGEN_13>,
+ <&scmi_clk CK_SCMI_FLEXGEN_14>,
+ <&scmi_clk CK_SCMI_FLEXGEN_15>,
+ <&scmi_clk CK_SCMI_FLEXGEN_16>,
+ <&scmi_clk CK_SCMI_FLEXGEN_17>,
+ <&scmi_clk CK_SCMI_FLEXGEN_18>,
+ <&scmi_clk CK_SCMI_FLEXGEN_19>,
+ <&scmi_clk CK_SCMI_FLEXGEN_20>,
+ <&scmi_clk CK_SCMI_FLEXGEN_21>,
+ <&scmi_clk CK_SCMI_FLEXGEN_22>,
+ <&scmi_clk CK_SCMI_FLEXGEN_23>,
+ <&scmi_clk CK_SCMI_FLEXGEN_24>,
+ <&scmi_clk CK_SCMI_FLEXGEN_25>,
+ <&scmi_clk CK_SCMI_FLEXGEN_26>,
+ <&scmi_clk CK_SCMI_FLEXGEN_27>,
+ <&scmi_clk CK_SCMI_FLEXGEN_28>,
+ <&scmi_clk CK_SCMI_FLEXGEN_29>,
+ <&scmi_clk CK_SCMI_FLEXGEN_30>,
+ <&scmi_clk CK_SCMI_FLEXGEN_31>,
+ <&scmi_clk CK_SCMI_FLEXGEN_32>,
+ <&scmi_clk CK_SCMI_FLEXGEN_33>,
+ <&scmi_clk CK_SCMI_FLEXGEN_34>,
+ <&scmi_clk CK_SCMI_FLEXGEN_35>,
+ <&scmi_clk CK_SCMI_FLEXGEN_36>,
+ <&scmi_clk CK_SCMI_FLEXGEN_37>,
+ <&scmi_clk CK_SCMI_FLEXGEN_38>,
+ <&scmi_clk CK_SCMI_FLEXGEN_39>,
+ <&scmi_clk CK_SCMI_FLEXGEN_40>,
+ <&scmi_clk CK_SCMI_FLEXGEN_41>,
+ <&scmi_clk CK_SCMI_FLEXGEN_42>,
+ <&scmi_clk CK_SCMI_FLEXGEN_43>,
+ <&scmi_clk CK_SCMI_FLEXGEN_44>,
+ <&scmi_clk CK_SCMI_FLEXGEN_45>,
+ <&scmi_clk CK_SCMI_FLEXGEN_46>,
+ <&scmi_clk CK_SCMI_FLEXGEN_47>,
+ <&scmi_clk CK_SCMI_FLEXGEN_48>,
+ <&scmi_clk CK_SCMI_FLEXGEN_49>,
+ <&scmi_clk CK_SCMI_FLEXGEN_50>,
+ <&scmi_clk CK_SCMI_FLEXGEN_51>,
+ <&scmi_clk CK_SCMI_FLEXGEN_52>,
+ <&scmi_clk CK_SCMI_FLEXGEN_53>,
+ <&scmi_clk CK_SCMI_FLEXGEN_54>,
+ <&scmi_clk CK_SCMI_FLEXGEN_55>,
+ <&scmi_clk CK_SCMI_FLEXGEN_56>,
+ <&scmi_clk CK_SCMI_FLEXGEN_57>,
+ <&scmi_clk CK_SCMI_FLEXGEN_58>,
+ <&scmi_clk CK_SCMI_FLEXGEN_59>,
+ <&scmi_clk CK_SCMI_FLEXGEN_60>,
+ <&scmi_clk CK_SCMI_FLEXGEN_61>,
+ <&scmi_clk CK_SCMI_FLEXGEN_62>,
+ <&scmi_clk CK_SCMI_FLEXGEN_63>,
+ <&scmi_clk CK_SCMI_ICN_APB1>,
+ <&scmi_clk CK_SCMI_ICN_APB2>,
+ <&scmi_clk CK_SCMI_ICN_APB3>,
+ <&scmi_clk CK_SCMI_ICN_APB4>,
+ <&scmi_clk CK_SCMI_ICN_APBDBG>,
+ <&scmi_clk CK_SCMI_TIMG1>,
+ <&scmi_clk CK_SCMI_TIMG2>,
+ <&scmi_clk CK_SCMI_PLL3>,
+ <&clk_dsi_txbyte>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/st/st,flexgen.txt b/Documentation/devicetree/bindings/clock/st/st,flexgen.txt
index c918075405ba..a9d1c19f30a3 100644
--- a/Documentation/devicetree/bindings/clock/st/st,flexgen.txt
+++ b/Documentation/devicetree/bindings/clock/st/st,flexgen.txt
@@ -64,12 +64,9 @@ Required properties:
audio use case)
"st,flexgen-video", "st,flexgen" (enable clock propagation on parent
and activate synchronous mode)
- "st,flexgen-stih407-a0"
"st,flexgen-stih410-a0"
- "st,flexgen-stih407-c0"
"st,flexgen-stih410-c0"
"st,flexgen-stih418-c0"
- "st,flexgen-stih407-d0"
"st,flexgen-stih410-d0"
"st,flexgen-stih407-d2"
"st,flexgen-stih418-d2"
diff --git a/Documentation/devicetree/bindings/clock/starfive,jh7110-ispcrg.yaml b/Documentation/devicetree/bindings/clock/starfive,jh7110-ispcrg.yaml
new file mode 100644
index 000000000000..3b8b85be5cd0
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/starfive,jh7110-ispcrg.yaml
@@ -0,0 +1,87 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/starfive,jh7110-ispcrg.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: StarFive JH7110 Image-Signal-Process Clock and Reset Generator
+
+maintainers:
+ - Xingyu Wu <xingyu.wu@starfivetech.com>
+
+properties:
+ compatible:
+ const: starfive,jh7110-ispcrg
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: ISP Top core
+ - description: ISP Top Axi
+ - description: NOC ISP Bus
+ - description: external DVP
+
+ clock-names:
+ items:
+ - const: isp_top_core
+ - const: isp_top_axi
+ - const: noc_bus_isp_axi
+ - const: dvp_clk
+
+ resets:
+ items:
+ - description: ISP Top core
+ - description: ISP Top Axi
+ - description: NOC ISP Bus
+
+ '#clock-cells':
+ const: 1
+ description:
+ See <dt-bindings/clock/starfive,jh7110-crg.h> for valid indices.
+
+ '#reset-cells':
+ const: 1
+ description:
+ See <dt-bindings/reset/starfive,jh7110-crg.h> for valid indices.
+
+ power-domains:
+ maxItems: 1
+ description:
+ ISP domain power
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - resets
+ - '#clock-cells'
+ - '#reset-cells'
+ - power-domains
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/starfive,jh7110-crg.h>
+ #include <dt-bindings/power/starfive,jh7110-pmu.h>
+ #include <dt-bindings/reset/starfive,jh7110-crg.h>
+
+ ispcrg: clock-controller@19810000 {
+ compatible = "starfive,jh7110-ispcrg";
+ reg = <0x19810000 0x10000>;
+ clocks = <&syscrg JH7110_SYSCLK_ISP_TOP_CORE>,
+ <&syscrg JH7110_SYSCLK_ISP_TOP_AXI>,
+ <&syscrg JH7110_SYSCLK_NOC_BUS_ISP_AXI>,
+ <&dvp_clk>;
+ clock-names = "isp_top_core", "isp_top_axi",
+ "noc_bus_isp_axi", "dvp_clk";
+ resets = <&syscrg JH7110_SYSRST_ISP_TOP>,
+ <&syscrg JH7110_SYSRST_ISP_TOP_AXI>,
+ <&syscrg JH7110_SYSRST_NOC_BUS_ISP_AXI>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ power-domains = <&pwrc JH7110_PD_ISP>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/starfive,jh7110-pll.yaml b/Documentation/devicetree/bindings/clock/starfive,jh7110-pll.yaml
new file mode 100644
index 000000000000..be8300ce86d0
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/starfive,jh7110-pll.yaml
@@ -0,0 +1,46 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/starfive,jh7110-pll.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: StarFive JH7110 PLL Clock Generator
+
+description:
+ These PLLs are high speed, low jitter frequency synthesizers in the JH7110.
+ Each PLL works in integer mode or fraction mode, with configuration
+ registers in the sys syscon. So the PLLs node should be a child of
+ SYS-SYSCON node.
+ The formula for calculating frequency is
+ Fvco = Fref * (NI + NF) / M / Q1
+
+maintainers:
+ - Xingyu Wu <xingyu.wu@starfivetech.com>
+
+properties:
+ compatible:
+ const: starfive,jh7110-pll
+
+ clocks:
+ maxItems: 1
+ description: Main Oscillator (24 MHz)
+
+ '#clock-cells':
+ const: 1
+ description:
+ See <dt-bindings/clock/starfive,jh7110-crg.h> for valid indices.
+
+required:
+ - compatible
+ - clocks
+ - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-controller {
+ compatible = "starfive,jh7110-pll";
+ clocks = <&osc>;
+ #clock-cells = <1>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/starfive,jh7110-stgcrg.yaml b/Documentation/devicetree/bindings/clock/starfive,jh7110-stgcrg.yaml
new file mode 100644
index 000000000000..b64ccd84200a
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/starfive,jh7110-stgcrg.yaml
@@ -0,0 +1,82 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/starfive,jh7110-stgcrg.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: StarFive JH7110 System-Top-Group Clock and Reset Generator
+
+maintainers:
+ - Xingyu Wu <xingyu.wu@starfivetech.com>
+
+properties:
+ compatible:
+ const: starfive,jh7110-stgcrg
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: Main Oscillator (24 MHz)
+ - description: HIFI4 core
+ - description: STG AXI/AHB
+ - description: USB (125 MHz)
+ - description: CPU Bus
+ - description: HIFI4 Axi
+ - description: NOC STG Bus
+ - description: APB Bus
+
+ clock-names:
+ items:
+ - const: osc
+ - const: hifi4_core
+ - const: stg_axiahb
+ - const: usb_125m
+ - const: cpu_bus
+ - const: hifi4_axi
+ - const: nocstg_bus
+ - const: apb_bus
+
+ '#clock-cells':
+ const: 1
+ description:
+ See <dt-bindings/clock/starfive,jh7110-crg.h> for valid indices.
+
+ '#reset-cells':
+ const: 1
+ description:
+ See <dt-bindings/reset/starfive,jh7110-crg.h> for valid indices.
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - '#clock-cells'
+ - '#reset-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/starfive,jh7110-crg.h>
+
+ stgcrg: clock-controller@10230000 {
+ compatible = "starfive,jh7110-stgcrg";
+ reg = <0x10230000 0x10000>;
+ clocks = <&osc>,
+ <&syscrg JH7110_SYSCLK_HIFI4_CORE>,
+ <&syscrg JH7110_SYSCLK_STG_AXIAHB>,
+ <&syscrg JH7110_SYSCLK_USB_125M>,
+ <&syscrg JH7110_SYSCLK_CPU_BUS>,
+ <&syscrg JH7110_SYSCLK_HIFI4_AXI>,
+ <&syscrg JH7110_SYSCLK_NOCSTG_BUS>,
+ <&syscrg JH7110_SYSCLK_APB_BUS>;
+ clock-names = "osc", "hifi4_core",
+ "stg_axiahb", "usb_125m",
+ "cpu_bus", "hifi4_axi",
+ "nocstg_bus", "apb_bus";
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/starfive,jh7110-syscrg.yaml b/Documentation/devicetree/bindings/clock/starfive,jh7110-syscrg.yaml
index 84373ae31644..5ba0a885aa80 100644
--- a/Documentation/devicetree/bindings/clock/starfive,jh7110-syscrg.yaml
+++ b/Documentation/devicetree/bindings/clock/starfive,jh7110-syscrg.yaml
@@ -27,6 +27,9 @@ properties:
- description: External I2S RX left/right channel clock
- description: External TDM clock
- description: External audio master clock
+ - description: PLL0
+ - description: PLL1
+ - description: PLL2
- items:
- description: Main Oscillator (24 MHz)
@@ -38,6 +41,9 @@ properties:
- description: External I2S RX left/right channel clock
- description: External TDM clock
- description: External audio master clock
+ - description: PLL0
+ - description: PLL1
+ - description: PLL2
clock-names:
oneOf:
@@ -52,6 +58,9 @@ properties:
- const: i2srx_lrck_ext
- const: tdm_ext
- const: mclk_ext
+ - const: pll0_out
+ - const: pll1_out
+ - const: pll2_out
- items:
- const: osc
@@ -63,6 +72,9 @@ properties:
- const: i2srx_lrck_ext
- const: tdm_ext
- const: mclk_ext
+ - const: pll0_out
+ - const: pll1_out
+ - const: pll2_out
'#clock-cells':
const: 1
@@ -93,12 +105,14 @@ examples:
<&gmac1_rgmii_rxin>,
<&i2stx_bclk_ext>, <&i2stx_lrck_ext>,
<&i2srx_bclk_ext>, <&i2srx_lrck_ext>,
- <&tdm_ext>, <&mclk_ext>;
+ <&tdm_ext>, <&mclk_ext>,
+ <&pllclk 0>, <&pllclk 1>, <&pllclk 2>;
clock-names = "osc", "gmac1_rmii_refin",
"gmac1_rgmii_rxin",
"i2stx_bclk_ext", "i2stx_lrck_ext",
"i2srx_bclk_ext", "i2srx_lrck_ext",
- "tdm_ext", "mclk_ext";
+ "tdm_ext", "mclk_ext",
+ "pll0_out", "pll1_out", "pll2_out";
#clock-cells = <1>;
#reset-cells = <1>;
};
diff --git a/Documentation/devicetree/bindings/clock/starfive,jh7110-voutcrg.yaml b/Documentation/devicetree/bindings/clock/starfive,jh7110-voutcrg.yaml
new file mode 100644
index 000000000000..af77bd8c86b1
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/starfive,jh7110-voutcrg.yaml
@@ -0,0 +1,90 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/starfive,jh7110-voutcrg.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: StarFive JH7110 Video-Output Clock and Reset Generator
+
+maintainers:
+ - Xingyu Wu <xingyu.wu@starfivetech.com>
+
+properties:
+ compatible:
+ const: starfive,jh7110-voutcrg
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: Vout Top core
+ - description: Vout Top Ahb
+ - description: Vout Top Axi
+ - description: Vout Top HDMI MCLK
+ - description: I2STX0 BCLK
+ - description: external HDMI pixel
+
+ clock-names:
+ items:
+ - const: vout_src
+ - const: vout_top_ahb
+ - const: vout_top_axi
+ - const: vout_top_hdmitx0_mclk
+ - const: i2stx0_bclk
+ - const: hdmitx0_pixelclk
+
+ resets:
+ maxItems: 1
+ description: Vout Top core
+
+ '#clock-cells':
+ const: 1
+ description:
+ See <dt-bindings/clock/starfive,jh7110-crg.h> for valid indices.
+
+ '#reset-cells':
+ const: 1
+ description:
+ See <dt-bindings/reset/starfive,jh7110-crg.h> for valid indices.
+
+ power-domains:
+ maxItems: 1
+ description:
+ Vout domain power
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - resets
+ - '#clock-cells'
+ - '#reset-cells'
+ - power-domains
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/starfive,jh7110-crg.h>
+ #include <dt-bindings/power/starfive,jh7110-pmu.h>
+ #include <dt-bindings/reset/starfive,jh7110-crg.h>
+
+ voutcrg: clock-controller@295C0000 {
+ compatible = "starfive,jh7110-voutcrg";
+ reg = <0x295C0000 0x10000>;
+ clocks = <&syscrg JH7110_SYSCLK_VOUT_SRC>,
+ <&syscrg JH7110_SYSCLK_VOUT_TOP_AHB>,
+ <&syscrg JH7110_SYSCLK_VOUT_TOP_AXI>,
+ <&syscrg JH7110_SYSCLK_VOUT_TOP_HDMITX0_MCLK>,
+ <&syscrg JH7110_SYSCLK_I2STX0_BCLK>,
+ <&hdmitx0_pixelclk>;
+ clock-names = "vout_src", "vout_top_ahb",
+ "vout_top_axi", "vout_top_hdmitx0_mclk",
+ "i2stx0_bclk", "hdmitx0_pixelclk";
+ resets = <&syscrg JH7110_SYSRST_VOUT_TOP_SRC>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ power-domains = <&pwrc JH7110_PD_VOUT>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/stericsson,abx500.txt b/Documentation/devicetree/bindings/clock/stericsson,abx500.txt
deleted file mode 100644
index dbaa886b223e..000000000000
--- a/Documentation/devicetree/bindings/clock/stericsson,abx500.txt
+++ /dev/null
@@ -1,20 +0,0 @@
-Clock bindings for ST-Ericsson ABx500 clocks
-
-Required properties :
-- compatible : shall contain the following:
- "stericsson,ab8500-clk"
-- #clock-cells should be <1>
-
-The ABx500 clocks need to be placed as a subnode of an AB8500
-device node, see mfd/ab8500.txt
-
-All available clocks are defined as preprocessor macros in
-dt-bindings/clock/ste-ab8500.h header and can be used in device
-tree sources.
-
-Example:
-
-clock-controller {
- compatible = "stericsson,ab8500-clk";
- #clock-cells = <1>;
-};
diff --git a/Documentation/devicetree/bindings/clock/tesla,fsd-clock.yaml b/Documentation/devicetree/bindings/clock/tesla,fsd-clock.yaml
index dc808e2f8327..b370a10a23a6 100644
--- a/Documentation/devicetree/bindings/clock/tesla,fsd-clock.yaml
+++ b/Documentation/devicetree/bindings/clock/tesla,fsd-clock.yaml
@@ -12,7 +12,7 @@ maintainers:
description: |
FSD clock controller consist of several clock management unit
- (CMU), which generates clocks for various inteernal SoC blocks.
+ (CMU), which generates clocks for various internal SoC blocks.
The root clock comes from external OSC clock (24 MHz).
All available clocks are defined as preprocessor macros in
diff --git a/Documentation/devicetree/bindings/clock/thead,th1520-clk-ap.yaml b/Documentation/devicetree/bindings/clock/thead,th1520-clk-ap.yaml
new file mode 100644
index 000000000000..9d058c00ab3d
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/thead,th1520-clk-ap.yaml
@@ -0,0 +1,64 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/thead,th1520-clk-ap.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: T-HEAD TH1520 AP sub-system clock controller
+
+description: |
+ The T-HEAD TH1520 AP sub-system clock controller configures the
+ CPU, DPU, GMAC and TEE PLLs. Additionally the VO subsystem configures
+ the clock gates for the HDMI, MIPI and the GPU.
+
+ SoC reference manual
+ https://openbeagle.org/beaglev-ahead/beaglev-ahead/-/blob/main/docs/TH1520%20System%20User%20Manual.pdf
+
+maintainers:
+ - Jisheng Zhang <jszhang@kernel.org>
+ - Wei Fu <wefu@redhat.com>
+ - Drew Fustini <dfustini@tenstorrent.com>
+
+properties:
+ compatible:
+ enum:
+ - thead,th1520-clk-ap
+ - thead,th1520-clk-vo
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: |
+ One input clock:
+ - For "thead,th1520-clk-ap": the clock input must be the 24 MHz
+ main oscillator.
+ - For "thead,th1520-clk-vo": the clock input must be the VIDEO_PLL,
+ which is configured by the AP clock controller. According to the
+ TH1520 manual, VIDEO_PLL is a Silicon Creations Sigma-Delta PLL
+ (integer PLL) typically running at 792 MHz (FOUTPOSTDIV), with
+ a maximum FOUTVCO of 2376 MHz.
+
+ "#clock-cells":
+ const: 1
+ description:
+ See <dt-bindings/clock/thead,th1520-clk-ap.h> for valid indices.
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - "#clock-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/thead,th1520-clk-ap.h>
+ clock-controller@ef010000 {
+ compatible = "thead,th1520-clk-ap";
+ reg = <0xef010000 0x1000>;
+ clocks = <&osc>;
+ #clock-cells = <1>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/ti,am62-audio-refclk.yaml b/Documentation/devicetree/bindings/clock/ti,am62-audio-refclk.yaml
new file mode 100644
index 000000000000..b2e40bd39a3a
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/ti,am62-audio-refclk.yaml
@@ -0,0 +1,43 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/ti,am62-audio-refclk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TI Audio Reference Clock
+
+maintainers:
+ - Jai Luthra <j-luthra@ti.com>
+
+properties:
+ compatible:
+ items:
+ - const: ti,am62-audio-refclk
+
+ reg:
+ maxItems: 1
+
+ "#clock-cells":
+ const: 0
+
+ clocks:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - "#clock-cells"
+ - clocks
+
+additionalProperties: false
+
+examples:
+ - |
+ audio_refclk0: clock@82e0 {
+ compatible = "ti,am62-audio-refclk";
+ reg = <0x82e0 0x4>;
+ clocks = <&k3_clks 157 0>;
+ assigned-clocks = <&k3_clks 157 0>;
+ assigned-clock-parents = <&k3_clks 157 8>;
+ #clock-cells = <0>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/ti,am654-ehrpwm-tbclk.yaml b/Documentation/devicetree/bindings/clock/ti,am654-ehrpwm-tbclk.yaml
index 66765116aff5..64b8bce5962c 100644
--- a/Documentation/devicetree/bindings/clock/ti,am654-ehrpwm-tbclk.yaml
+++ b/Documentation/devicetree/bindings/clock/ti,am654-ehrpwm-tbclk.yaml
@@ -16,7 +16,6 @@ properties:
- ti,am654-ehrpwm-tbclk
- ti,am64-epwm-tbclk
- ti,am62-epwm-tbclk
- - const: syscon
"#clock-cells":
const: 1
@@ -33,8 +32,8 @@ additionalProperties: false
examples:
- |
- ehrpwm_tbclk: syscon@4140 {
- compatible = "ti,am654-ehrpwm-tbclk", "syscon";
+ ehrpwm_tbclk: clock@4140 {
+ compatible = "ti,am654-ehrpwm-tbclk";
reg = <0x4140 0x18>;
#clock-cells = <1>;
};
diff --git a/Documentation/devicetree/bindings/clock/ti,cdce925.yaml b/Documentation/devicetree/bindings/clock/ti,cdce925.yaml
index a4ec8dd5ddf1..95c1c6f8b755 100644
--- a/Documentation/devicetree/bindings/clock/ti,cdce925.yaml
+++ b/Documentation/devicetree/bindings/clock/ti,cdce925.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause)
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/clock/ti,cdce925.yaml#
diff --git a/Documentation/devicetree/bindings/clock/ti,clkctrl.yaml b/Documentation/devicetree/bindings/clock/ti,clkctrl.yaml
new file mode 100644
index 000000000000..49787550ce45
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/ti,clkctrl.yaml
@@ -0,0 +1,65 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/ti,clkctrl.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments clkctrl clock
+
+maintainers:
+ - Tony Lindgren <tony@atomide.com>
+ - Andreas Kemnade <andreas@kemnade.info>
+
+description: |
+ Texas Instruments SoCs can have a clkctrl clock controller for each
+ interconnect target module. The clkctrl clock controller manages functional
+ and interface clocks for each module. Each clkctrl controller can also
+ gate one or more optional functional clocks for a module, and can have one
+ or more clock muxes. There is a clkctrl clock controller typically for each
+ interconnect target module on omap4 and later variants.
+
+ The clock consumers can specify the index of the clkctrl clock using
+ the hardware offset from the clkctrl instance register space. The optional
+ clocks can be specified by clkctrl hardware offset and the index of the
+ optional clock.
+
+properties:
+ compatible:
+ enum:
+ - ti,clkctrl
+ - ti,clkctrl-l4-cfg
+ - ti,clkctrl-l4-per
+ - ti,clkctrl-l4-secure
+ - ti,clkctrl-l4-wkup
+
+ "#clock-cells":
+ const: 2
+
+ clock-output-names:
+ maxItems: 1
+
+ reg:
+ minItems: 1
+ maxItems: 8 # arbitrary, should be enough
+
+required:
+ - compatible
+ - "#clock-cells"
+ - clock-output-names
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ bus {
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ clock@20 {
+ compatible = "ti,clkctrl";
+ clock-output-names = "l4_per";
+ reg = <0x20 0x1b0>;
+ #clock-cells = <2>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/clock/ti,sci-clk.yaml b/Documentation/devicetree/bindings/clock/ti,sci-clk.yaml
index 63d976341696..66e8e66ca175 100644
--- a/Documentation/devicetree/bindings/clock/ti,sci-clk.yaml
+++ b/Documentation/devicetree/bindings/clock/ti,sci-clk.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause)
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/clock/ti,sci-clk.yaml#
@@ -36,7 +36,7 @@ properties:
The second cell should contain the clock ID.
- Please see http://processors.wiki.ti.com/index.php/TISCI for
+ Please see https://software-dl.ti.com/tisci/esd/latest/index.html for
protocol documentation for the values to be used for different devices.
additionalProperties: false
diff --git a/Documentation/devicetree/bindings/clock/ti-clkctrl.txt b/Documentation/devicetree/bindings/clock/ti-clkctrl.txt
deleted file mode 100644
index d20db7974a38..000000000000
--- a/Documentation/devicetree/bindings/clock/ti-clkctrl.txt
+++ /dev/null
@@ -1,63 +0,0 @@
-Texas Instruments clkctrl clock binding
-
-Texas Instruments SoCs can have a clkctrl clock controller for each
-interconnect target module. The clkctrl clock controller manages functional
-and interface clocks for each module. Each clkctrl controller can also
-gate one or more optional functional clocks for a module, and can have one
-or more clock muxes. There is a clkctrl clock controller typically for each
-interconnect target module on omap4 and later variants.
-
-The clock consumers can specify the index of the clkctrl clock using
-the hardware offset from the clkctrl instance register space. The optional
-clocks can be specified by clkctrl hardware offset and the index of the
-optional clock.
-
-For more information, please see the Linux clock framework binding at
-Documentation/devicetree/bindings/clock/clock-bindings.txt.
-
-Required properties :
-- compatible : shall be "ti,clkctrl" or a clock domain specific name:
- "ti,clkctrl-l4-cfg"
- "ti,clkctrl-l4-per"
- "ti,clkctrl-l4-secure"
- "ti,clkctrl-l4-wkup"
-- clock-output-names : from common clock binding
-- #clock-cells : shall contain 2 with the first entry being the instance
- offset from the clock domain base and the second being the
- clock index
-- reg : clock registers
-
-Example: Clock controller node on omap 4430:
-
-&cm2 {
- l4per: cm@1400 {
- cm_l4per@0 {
- cm_l4per_clkctrl: clock@20 {
- compatible = "ti,clkctrl";
- clock-output-names = "l4_per";
- reg = <0x20 0x1b0>;
- #clock-cells = <2>;
- };
- };
- };
-};
-
-Example: Preprocessor helper macros in dt-bindings/clock/ti-clkctrl.h
-
-#define OMAP4_CLKCTRL_OFFSET 0x20
-#define OMAP4_CLKCTRL_INDEX(offset) ((offset) - OMAP4_CLKCTRL_OFFSET)
-#define MODULEMODE_HWCTRL 1
-#define MODULEMODE_SWCTRL 2
-
-#define OMAP4_GPTIMER10_CLKTRL OMAP4_CLKCTRL_INDEX(0x28)
-#define OMAP4_GPTIMER11_CLKTRL OMAP4_CLKCTRL_INDEX(0x30)
-#define OMAP4_GPTIMER2_CLKTRL OMAP4_CLKCTRL_INDEX(0x38)
-...
-#define OMAP4_GPIO2_CLKCTRL OMAP_CLKCTRL_INDEX(0x60)
-
-Example: Clock consumer node for GPIO2:
-
-&gpio2 {
- clocks = <&cm_l4per_clkctrl OMAP4_GPIO2_CLKCTRL 0
- &cm_l4per_clkctrl OMAP4_GPIO2_CLKCTRL 8>;
-};
diff --git a/Documentation/devicetree/bindings/clock/ti-keystone-pllctrl.txt b/Documentation/devicetree/bindings/clock/ti-keystone-pllctrl.txt
deleted file mode 100644
index c35cb6c4af4d..000000000000
--- a/Documentation/devicetree/bindings/clock/ti-keystone-pllctrl.txt
+++ /dev/null
@@ -1,20 +0,0 @@
-* Device tree bindings for Texas Instruments keystone pll controller
-
-The main pll controller used to drive theC66x CorePacs, the switch fabric,
-and a majority of the peripheral clocks (all but the ARM CorePacs, DDR3 and
-the NETCP modules) requires a PLL Controller to manage the various clock
-divisions, gating, and synchronization.
-
-Required properties:
-
-- compatible: "ti,keystone-pllctrl", "syscon"
-
-- reg: contains offset/length value for pll controller
- registers space.
-
-Example:
-
-pllctrl: pll-controller@02310000 {
- compatible = "ti,keystone-pllctrl", "syscon";
- reg = <0x02310000 0x200>;
-};
diff --git a/Documentation/devicetree/bindings/clock/ti/adpll.txt b/Documentation/devicetree/bindings/clock/ti/adpll.txt
index 4c8a2ce2cd70..3122360adcf3 100644
--- a/Documentation/devicetree/bindings/clock/ti/adpll.txt
+++ b/Documentation/devicetree/bindings/clock/ti/adpll.txt
@@ -1,7 +1,5 @@
Binding for Texas Instruments ADPLL clock.
-Binding status: Unstable - ABI compatibility may be broken in the future
-
This binding uses the common clock binding[1]. It assumes a
register-mapped ADPLL with two to three selectable input clocks
and three to four children.
diff --git a/Documentation/devicetree/bindings/clock/ti/apll.txt b/Documentation/devicetree/bindings/clock/ti/apll.txt
index ade4dd4c30f0..bbd505c1199d 100644
--- a/Documentation/devicetree/bindings/clock/ti/apll.txt
+++ b/Documentation/devicetree/bindings/clock/ti/apll.txt
@@ -1,7 +1,5 @@
Binding for Texas Instruments APLL clock.
-Binding status: Unstable - ABI compatibility may be broken in the future
-
This binding uses the common clock binding[1]. It assumes a
register-mapped APLL with usually two selectable input clocks
(reference clock and bypass clock), with analog phase locked
diff --git a/Documentation/devicetree/bindings/clock/ti/autoidle.txt b/Documentation/devicetree/bindings/clock/ti/autoidle.txt
deleted file mode 100644
index 7c735dde9fe9..000000000000
--- a/Documentation/devicetree/bindings/clock/ti/autoidle.txt
+++ /dev/null
@@ -1,39 +0,0 @@
-Binding for Texas Instruments autoidle clock.
-
-Binding status: Unstable - ABI compatibility may be broken in the future
-
-This binding uses the common clock binding[1]. It assumes a register mapped
-clock which can be put to idle automatically by hardware based on the usage
-and a configuration bit setting. Autoidle clock is never an individual
-clock, it is always a derivative of some basic clock like a gate, divider,
-or fixed-factor.
-
-[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
-
-Required properties:
-- reg : offset for the register controlling the autoidle
-- ti,autoidle-shift : bit shift of the autoidle enable bit
-- ti,invert-autoidle-bit : autoidle is enabled by setting the bit to 0
-
-Examples:
- dpll_core_m4_ck: dpll_core_m4_ck {
- #clock-cells = <0>;
- compatible = "ti,divider-clock";
- clocks = <&dpll_core_x2_ck>;
- ti,max-div = <31>;
- ti,autoidle-shift = <8>;
- reg = <0x2d38>;
- ti,index-starts-at-one;
- ti,invert-autoidle-bit;
- };
-
- dpll_usb_clkdcoldo_ck: dpll_usb_clkdcoldo_ck {
- #clock-cells = <0>;
- compatible = "ti,fixed-factor-clock";
- clocks = <&dpll_usb_ck>;
- ti,clock-div = <1>;
- ti,autoidle-shift = <8>;
- reg = <0x01b4>;
- ti,clock-mult = <1>;
- ti,invert-autoidle-bit;
- };
diff --git a/Documentation/devicetree/bindings/clock/ti/clockdomain.txt b/Documentation/devicetree/bindings/clock/ti/clockdomain.txt
index 9c6199249ce5..edf0b5d42768 100644
--- a/Documentation/devicetree/bindings/clock/ti/clockdomain.txt
+++ b/Documentation/devicetree/bindings/clock/ti/clockdomain.txt
@@ -1,7 +1,5 @@
Binding for Texas Instruments clockdomain.
-Binding status: Unstable - ABI compatibility may be broken in the future
-
This binding uses the common clock binding[1] in consumer role.
Every clock on TI SoC belongs to one clockdomain, but software
only needs this information for specific clocks which require
diff --git a/Documentation/devicetree/bindings/clock/ti/composite.txt b/Documentation/devicetree/bindings/clock/ti/composite.txt
deleted file mode 100644
index 33ac7c9ad053..000000000000
--- a/Documentation/devicetree/bindings/clock/ti/composite.txt
+++ /dev/null
@@ -1,57 +0,0 @@
-Binding for TI composite clock.
-
-Binding status: Unstable - ABI compatibility may be broken in the future
-
-This binding uses the common clock binding[1]. It assumes a
-register-mapped composite clock with multiple different sub-types;
-
-a multiplexer clock with multiple input clock signals or parents, one
-of which can be selected as output, this behaves exactly as [2]
-
-an adjustable clock rate divider, this behaves exactly as [3]
-
-a gating function which can be used to enable and disable the output
-clock, this behaves exactly as [4]
-
-The binding must provide a list of the component clocks that shall be
-merged to this clock. The component clocks shall be of one of the
-"ti,*composite*-clock" types.
-
-[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
-[2] Documentation/devicetree/bindings/clock/ti/mux.txt
-[3] Documentation/devicetree/bindings/clock/ti/divider.txt
-[4] Documentation/devicetree/bindings/clock/ti/gate.txt
-
-Required properties:
-- compatible : shall be: "ti,composite-clock"
-- clocks : link phandles of component clocks
-- #clock-cells : from common clock binding; shall be set to 0.
-
-Optional properties:
-- clock-output-names : from common clock binding.
-
-Examples:
-
-usb_l4_gate_ick: usb_l4_gate_ick {
- #clock-cells = <0>;
- compatible = "ti,composite-interface-clock";
- clocks = <&l4_ick>;
- ti,bit-shift = <5>;
- reg = <0x0a10>;
-};
-
-usb_l4_div_ick: usb_l4_div_ick {
- #clock-cells = <0>;
- compatible = "ti,composite-divider-clock";
- clocks = <&l4_ick>;
- ti,bit-shift = <4>;
- ti,max-div = <1>;
- reg = <0x0a40>;
- ti,index-starts-at-one;
-};
-
-usb_l4_ick: usb_l4_ick {
- #clock-cells = <0>;
- compatible = "ti,composite-clock";
- clocks = <&usb_l4_gate_ick>, <&usb_l4_div_ick>;
-};
diff --git a/Documentation/devicetree/bindings/clock/ti/divider.txt b/Documentation/devicetree/bindings/clock/ti/divider.txt
deleted file mode 100644
index 9b13b32974f9..000000000000
--- a/Documentation/devicetree/bindings/clock/ti/divider.txt
+++ /dev/null
@@ -1,117 +0,0 @@
-Binding for TI divider clock
-
-Binding status: Unstable - ABI compatibility may be broken in the future
-
-This binding uses the common clock binding[1]. It assumes a
-register-mapped adjustable clock rate divider that does not gate and has
-only one input clock or parent. By default the value programmed into
-the register is one less than the actual divisor value. E.g:
-
-register value actual divisor value
-0 1
-1 2
-2 3
-
-This assumption may be modified by the following optional properties:
-
-ti,index-starts-at-one - valid divisor values start at 1, not the default
-of 0. E.g:
-register value actual divisor value
-1 1
-2 2
-3 3
-
-ti,index-power-of-two - valid divisor values are powers of two. E.g:
-register value actual divisor value
-0 1
-1 2
-2 4
-
-Additionally an array of valid dividers may be supplied like so:
-
- ti,dividers = <4>, <8>, <0>, <16>;
-
-Which will map the resulting values to a divisor table by their index:
-register value actual divisor value
-0 4
-1 8
-2 <invalid divisor, skipped>
-3 16
-
-Any zero value in this array means the corresponding bit-value is invalid
-and must not be used.
-
-The binding must also provide the register to control the divider and
-unless the divider array is provided, min and max dividers. Optionally
-the number of bits to shift that mask, if necessary. If the shift value
-is missing it is the same as supplying a zero shift.
-
-This binding can also optionally provide support to the hardware autoidle
-feature, see [2].
-
-[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
-[2] Documentation/devicetree/bindings/clock/ti/autoidle.txt
-
-Required properties:
-- compatible : shall be "ti,divider-clock" or "ti,composite-divider-clock".
-- #clock-cells : from common clock binding; shall be set to 0.
-- clocks : link to phandle of parent clock
-- reg : offset for register controlling adjustable divider
-
-Optional properties:
-- clock-output-names : from common clock binding.
-- ti,dividers : array of integers defining divisors
-- ti,bit-shift : number of bits to shift the divider value, defaults to 0
-- ti,min-div : min divisor for dividing the input clock rate, only
- needed if the first divisor is offset from the default value (1)
-- ti,max-div : max divisor for dividing the input clock rate, only needed
- if ti,dividers is not defined.
-- ti,index-starts-at-one : valid divisor programming starts at 1, not zero,
- only valid if ti,dividers is not defined.
-- ti,index-power-of-two : valid divisor programming must be a power of two,
- only valid if ti,dividers is not defined.
-- ti,autoidle-shift : bit shift of the autoidle enable bit for the clock,
- see [2]
-- ti,invert-autoidle-bit : autoidle is enabled by setting the bit to 0,
- see [2]
-- ti,set-rate-parent : clk_set_rate is propagated to parent
-- ti,latch-bit : latch the divider value to HW, only needed if the register
- access requires this. As an example dra76x DPLL_GMAC H14 divider implements
- such behavior.
-
-Examples:
-dpll_usb_m2_ck: dpll_usb_m2_ck@4a008190 {
- #clock-cells = <0>;
- compatible = "ti,divider-clock";
- clocks = <&dpll_usb_ck>;
- ti,max-div = <127>;
- reg = <0x190>;
- ti,index-starts-at-one;
-};
-
-aess_fclk: aess_fclk@4a004528 {
- #clock-cells = <0>;
- compatible = "ti,divider-clock";
- clocks = <&abe_clk>;
- ti,bit-shift = <24>;
- reg = <0x528>;
- ti,max-div = <2>;
-};
-
-dpll_core_m3x2_div_ck: dpll_core_m3x2_div_ck {
- #clock-cells = <0>;
- compatible = "ti,composite-divider-clock";
- clocks = <&dpll_core_x2_ck>;
- ti,max-div = <31>;
- reg = <0x0134>;
- ti,index-starts-at-one;
-};
-
-ssi_ssr_div_fck_3430es2: ssi_ssr_div_fck_3430es2 {
- #clock-cells = <0>;
- compatible = "ti,composite-divider-clock";
- clocks = <&corex2_fck>;
- ti,bit-shift = <8>;
- reg = <0x0a40>;
- ti,dividers = <0>, <1>, <2>, <3>, <4>, <0>, <6>, <0>, <8>;
-};
diff --git a/Documentation/devicetree/bindings/clock/ti/dpll.txt b/Documentation/devicetree/bindings/clock/ti/dpll.txt
index 37a7cb6ad07d..14a1b72c2e71 100644
--- a/Documentation/devicetree/bindings/clock/ti/dpll.txt
+++ b/Documentation/devicetree/bindings/clock/ti/dpll.txt
@@ -1,7 +1,5 @@
Binding for Texas Instruments DPLL clock.
-Binding status: Unstable - ABI compatibility may be broken in the future
-
This binding uses the common clock binding[1]. It assumes a
register-mapped DPLL with usually two selectable input clocks
(reference clock and bypass clock), with digital phase locked
diff --git a/Documentation/devicetree/bindings/clock/ti/fapll.txt b/Documentation/devicetree/bindings/clock/ti/fapll.txt
index c19b3f253b8c..88986ef39ddd 100644
--- a/Documentation/devicetree/bindings/clock/ti/fapll.txt
+++ b/Documentation/devicetree/bindings/clock/ti/fapll.txt
@@ -1,7 +1,5 @@
Binding for Texas Instruments FAPLL clock.
-Binding status: Unstable - ABI compatibility may be broken in the future
-
This binding uses the common clock binding[1]. It assumes a
register-mapped FAPLL with usually two selectable input clocks
(reference clock and bypass clock), and one or more child
diff --git a/Documentation/devicetree/bindings/clock/ti/fixed-factor-clock.txt b/Documentation/devicetree/bindings/clock/ti/fixed-factor-clock.txt
deleted file mode 100644
index 518e3c142276..000000000000
--- a/Documentation/devicetree/bindings/clock/ti/fixed-factor-clock.txt
+++ /dev/null
@@ -1,44 +0,0 @@
-Binding for TI fixed factor rate clock sources.
-
-Binding status: Unstable - ABI compatibility may be broken in the future
-
-This binding uses the common clock binding[1], and also uses the autoidle
-support from TI autoidle clock [2].
-
-[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
-[2] Documentation/devicetree/bindings/clock/ti/autoidle.txt
-
-Required properties:
-- compatible : shall be "ti,fixed-factor-clock".
-- #clock-cells : from common clock binding; shall be set to 0.
-- ti,clock-div: fixed divider.
-- ti,clock-mult: fixed multiplier.
-- clocks: parent clock.
-
-Optional properties:
-- clock-output-names : from common clock binding.
-- ti,autoidle-shift: bit shift of the autoidle enable bit for the clock,
- see [2]
-- reg: offset for the autoidle register of this clock, see [2]
-- ti,invert-autoidle-bit: autoidle is enabled by setting the bit to 0, see [2]
-- ti,set-rate-parent: clk_set_rate is propagated to parent
-
-Example:
- clock {
- compatible = "ti,fixed-factor-clock";
- clocks = <&parentclk>;
- #clock-cells = <0>;
- ti,clock-div = <2>;
- ti,clock-mult = <1>;
- };
-
- dpll_usb_clkdcoldo_ck: dpll_usb_clkdcoldo_ck {
- #clock-cells = <0>;
- compatible = "ti,fixed-factor-clock";
- clocks = <&dpll_usb_ck>;
- ti,clock-div = <1>;
- ti,autoidle-shift = <8>;
- reg = <0x01b4>;
- ti,clock-mult = <1>;
- ti,invert-autoidle-bit;
- };
diff --git a/Documentation/devicetree/bindings/clock/ti/gate.txt b/Documentation/devicetree/bindings/clock/ti/gate.txt
deleted file mode 100644
index 4982615c01b9..000000000000
--- a/Documentation/devicetree/bindings/clock/ti/gate.txt
+++ /dev/null
@@ -1,107 +0,0 @@
-Binding for Texas Instruments gate clock.
-
-Binding status: Unstable - ABI compatibility may be broken in the future
-
-This binding uses the common clock binding[1]. This clock is
-quite much similar to the basic gate-clock [2], however,
-it supports a number of additional features. If no register
-is provided for this clock, the code assumes that a clockdomain
-will be controlled instead and the corresponding hw-ops for
-that is used.
-
-[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
-[2] Documentation/devicetree/bindings/clock/gpio-gate-clock.yaml
-[3] Documentation/devicetree/bindings/clock/ti/clockdomain.txt
-
-Required properties:
-- compatible : shall be one of:
- "ti,gate-clock" - basic gate clock
- "ti,wait-gate-clock" - gate clock which waits until clock is active before
- returning from clk_enable()
- "ti,dss-gate-clock" - gate clock with DSS specific hardware handling
- "ti,am35xx-gate-clock" - gate clock with AM35xx specific hardware handling
- "ti,clkdm-gate-clock" - clockdomain gate clock, which derives its functional
- clock directly from a clockdomain, see [3] how
- to map clockdomains properly
- "ti,hsdiv-gate-clock" - gate clock with OMAP36xx specific hardware handling,
- required for a hardware errata
- "ti,composite-gate-clock" - composite gate clock, to be part of composite
- clock
- "ti,composite-no-wait-gate-clock" - composite gate clock that does not wait
- for clock to be active before returning
- from clk_enable()
-- #clock-cells : from common clock binding; shall be set to 0
-- clocks : link to phandle of parent clock
-- reg : offset for register controlling adjustable gate, not needed for
- ti,clkdm-gate-clock type
-
-Optional properties:
-- clock-output-names : from common clock binding.
-- ti,bit-shift : bit shift for programming the clock gate, invalid for
- ti,clkdm-gate-clock type
-- ti,set-bit-to-disable : inverts default gate programming. Setting the bit
- gates the clock and clearing the bit ungates the clock.
-
-Examples:
- mmchs2_fck: mmchs2_fck@48004a00 {
- #clock-cells = <0>;
- compatible = "ti,gate-clock";
- clocks = <&core_96m_fck>;
- reg = <0x0a00>;
- ti,bit-shift = <25>;
- };
-
- uart4_fck_am35xx: uart4_fck_am35xx {
- #clock-cells = <0>;
- compatible = "ti,wait-gate-clock";
- clocks = <&core_48m_fck>;
- reg = <0x0a00>;
- ti,bit-shift = <23>;
- };
-
- dss1_alwon_fck_3430es2: dss1_alwon_fck_3430es2@48004e00 {
- #clock-cells = <0>;
- compatible = "ti,dss-gate-clock";
- clocks = <&dpll4_m4x2_ck>;
- reg = <0x0e00>;
- ti,bit-shift = <0>;
- };
-
- emac_ick: emac_ick@4800259c {
- #clock-cells = <0>;
- compatible = "ti,am35xx-gate-clock";
- clocks = <&ipss_ick>;
- reg = <0x059c>;
- ti,bit-shift = <1>;
- };
-
- emu_src_ck: emu_src_ck {
- #clock-cells = <0>;
- compatible = "ti,clkdm-gate-clock";
- clocks = <&emu_src_mux_ck>;
- };
-
- dpll4_m2x2_ck: dpll4_m2x2_ck@48004d00 {
- #clock-cells = <0>;
- compatible = "ti,hsdiv-gate-clock";
- clocks = <&dpll4_m2x2_mul_ck>;
- ti,bit-shift = <0x1b>;
- reg = <0x0d00>;
- ti,set-bit-to-disable;
- };
-
- vlynq_gate_fck: vlynq_gate_fck {
- #clock-cells = <0>;
- compatible = "ti,composite-gate-clock";
- clocks = <&core_ck>;
- ti,bit-shift = <3>;
- reg = <0x0200>;
- };
-
- sys_clkout2_src_gate: sys_clkout2_src_gate {
- #clock-cells = <0>;
- compatible = "ti,composite-no-wait-gate-clock";
- clocks = <&core_ck>;
- ti,bit-shift = <15>;
- reg = <0x0070>;
- };
diff --git a/Documentation/devicetree/bindings/clock/ti/interface.txt b/Documentation/devicetree/bindings/clock/ti/interface.txt
deleted file mode 100644
index d3eb5ca92a7f..000000000000
--- a/Documentation/devicetree/bindings/clock/ti/interface.txt
+++ /dev/null
@@ -1,57 +0,0 @@
-Binding for Texas Instruments interface clock.
-
-Binding status: Unstable - ABI compatibility may be broken in the future
-
-This binding uses the common clock binding[1]. This clock is
-quite much similar to the basic gate-clock [2], however,
-it supports a number of additional features, including
-companion clock finding (match corresponding functional gate
-clock) and hardware autoidle enable / disable.
-
-[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
-[2] Documentation/devicetree/bindings/clock/gpio-gate-clock.yaml
-
-Required properties:
-- compatible : shall be one of:
- "ti,omap3-interface-clock" - basic OMAP3 interface clock
- "ti,omap3-no-wait-interface-clock" - interface clock which has no hardware
- capability for waiting clock to be ready
- "ti,omap3-hsotgusb-interface-clock" - interface clock with USB specific HW
- handling
- "ti,omap3-dss-interface-clock" - interface clock with DSS specific HW handling
- "ti,omap3-ssi-interface-clock" - interface clock with SSI specific HW handling
- "ti,am35xx-interface-clock" - interface clock with AM35xx specific HW handling
- "ti,omap2430-interface-clock" - interface clock with OMAP2430 specific HW
- handling
-- #clock-cells : from common clock binding; shall be set to 0
-- clocks : link to phandle of parent clock
-- reg : base address for the control register
-
-Optional properties:
-- clock-output-names : from common clock binding.
-- ti,bit-shift : bit shift for the bit enabling/disabling the clock (default 0)
-
-Examples:
- aes1_ick: aes1_ick@48004a14 {
- #clock-cells = <0>;
- compatible = "ti,omap3-interface-clock";
- clocks = <&security_l4_ick2>;
- reg = <0x48004a14 0x4>;
- ti,bit-shift = <3>;
- };
-
- cam_ick: cam_ick@48004f10 {
- #clock-cells = <0>;
- compatible = "ti,omap3-no-wait-interface-clock";
- clocks = <&l4_ick>;
- reg = <0x48004f10 0x4>;
- ti,bit-shift = <0>;
- };
-
- ssi_ick_3430es2: ssi_ick_3430es2@48004a10 {
- #clock-cells = <0>;
- compatible = "ti,omap3-ssi-interface-clock";
- clocks = <&ssi_l4_ick>;
- reg = <0x48004a10 0x4>;
- ti,bit-shift = <0>;
- };
diff --git a/Documentation/devicetree/bindings/clock/ti/mux.txt b/Documentation/devicetree/bindings/clock/ti/mux.txt
deleted file mode 100644
index e17425a58621..000000000000
--- a/Documentation/devicetree/bindings/clock/ti/mux.txt
+++ /dev/null
@@ -1,80 +0,0 @@
-Binding for TI mux clock.
-
-Binding status: Unstable - ABI compatibility may be broken in the future
-
-This binding uses the common clock binding[1]. It assumes a
-register-mapped multiplexer with multiple input clock signals or
-parents, one of which can be selected as output. This clock does not
-gate or adjust the parent rate via a divider or multiplier.
-
-By default the "clocks" property lists the parents in the same order
-as they are programmed into the regster. E.g:
-
- clocks = <&foo_clock>, <&bar_clock>, <&baz_clock>;
-
-results in programming the register as follows:
-
-register value selected parent clock
-0 foo_clock
-1 bar_clock
-2 baz_clock
-
-Some clock controller IPs do not allow a value of zero to be programmed
-into the register, instead indexing begins at 1. The optional property
-"index-starts-at-one" modified the scheme as follows:
-
-register value selected clock parent
-1 foo_clock
-2 bar_clock
-3 baz_clock
-
-The binding must provide the register to control the mux. Optionally
-the number of bits to shift the control field in the register can be
-supplied. If the shift value is missing it is the same as supplying
-a zero shift.
-
-[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
-
-Required properties:
-- compatible : shall be "ti,mux-clock" or "ti,composite-mux-clock".
-- #clock-cells : from common clock binding; shall be set to 0.
-- clocks : link phandles of parent clocks
-- reg : register offset for register controlling adjustable mux
-
-Optional properties:
-- clock-output-names : from common clock binding.
-- ti,bit-shift : number of bits to shift the bit-mask, defaults to
- 0 if not present
-- ti,index-starts-at-one : valid input select programming starts at 1, not
- zero
-- ti,set-rate-parent : clk_set_rate is propagated to parent clock,
- not supported by the composite-mux-clock subtype
-- ti,latch-bit : latch the mux value to HW, only needed if the register
- access requires this. As an example, dra7x DPLL_GMAC H14 muxing
- implements such behavior.
-
-Examples:
-
-sys_clkin_ck: sys_clkin_ck@4a306110 {
- #clock-cells = <0>;
- compatible = "ti,mux-clock";
- clocks = <&virt_12000000_ck>, <&virt_13000000_ck>, <&virt_16800000_ck>, <&virt_19200000_ck>, <&virt_26000000_ck>, <&virt_27000000_ck>, <&virt_38400000_ck>;
- reg = <0x0110>;
- ti,index-starts-at-one;
-};
-
-abe_dpll_bypass_clk_mux_ck: abe_dpll_bypass_clk_mux_ck@4a306108 {
- #clock-cells = <0>;
- compatible = "ti,mux-clock";
- clocks = <&sys_clkin_ck>, <&sys_32k_ck>;
- ti,bit-shift = <24>;
- reg = <0x0108>;
-};
-
-mcbsp5_mux_fck: mcbsp5_mux_fck {
- #clock-cells = <0>;
- compatible = "ti,composite-mux-clock";
- clocks = <&core_96m_fck>, <&mcbsp_clks>;
- ti,bit-shift = <4>;
- reg = <0x02d8>;
-};
diff --git a/Documentation/devicetree/bindings/clock/ti/ti,autoidle.yaml b/Documentation/devicetree/bindings/clock/ti/ti,autoidle.yaml
new file mode 100644
index 000000000000..ed1bf182b64d
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/ti/ti,autoidle.yaml
@@ -0,0 +1,34 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/ti/ti,autoidle.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TI autoidle clock
+
+maintainers:
+ - Tero Kristo <kristo@kernel.org>
+ - Sukrut Bellary <sbellary@baylibre.com>
+
+description:
+ Some clocks in TI SoC support the autoidle feature. These properties are
+ applicable only if the clock supports autoidle feature. It assumes a register
+ mapped clock which can be put to idle automatically by hardware based on
+ usage and configuration bit setting. Autoidle clock is never an individual
+ clock, it is always a derivative of some basic clock like a gate, divider, or
+ fixed-factor.
+
+properties:
+ ti,autoidle-shift:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ bit shift of the autoidle enable bit for the clock
+ maximum: 31
+ default: 0
+
+ ti,invert-autoidle-bit:
+ type: boolean
+ description:
+ autoidle is enabled by setting the bit to 0
+
+additionalProperties: true
diff --git a/Documentation/devicetree/bindings/clock/ti/ti,composite-clock.yaml b/Documentation/devicetree/bindings/clock/ti/ti,composite-clock.yaml
new file mode 100644
index 000000000000..31a6794852c7
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/ti/ti,composite-clock.yaml
@@ -0,0 +1,82 @@
+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/ti/ti,composite-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments composite clock
+
+maintainers:
+ - Tero Kristo <kristo@kernel.org>
+
+description: |
+ *Deprecated design pattern: one node per clock*
+
+ This binding assumes a register-mapped composite clock with multiple
+ different sub-types:
+
+ a multiplexer clock with multiple input clock signals or parents, one
+ of which can be selected as output, this behaves exactly as [1].
+
+ an adjustable clock rate divider, this behaves exactly as [2].
+
+ a gating function which can be used to enable and disable the output
+ clock, this behaves exactly as [3].
+
+ The binding must provide a list of the component clocks that shall be
+ merged to this clock. The component clocks shall be of one of the
+ "ti,*composite*-clock" types.
+
+ [1] Documentation/devicetree/bindings/clock/ti/ti,mux-clock.yaml
+ [2] Documentation/devicetree/bindings/clock/ti/ti,divider-clock.yaml
+ [3] Documentation/devicetree/bindings/clock/ti/ti,gate-clock.yaml
+
+properties:
+ compatible:
+ const: ti,composite-clock
+
+ "#clock-cells":
+ const: 0
+
+ clocks: true
+
+ clock-output-names:
+ maxItems: 1
+
+required:
+ - compatible
+ - "#clock-cells"
+ - clocks
+
+additionalProperties: false
+
+examples:
+ - |
+ bus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ usb_l4_gate_ick: clock-controller@a10 {
+ #clock-cells = <0>;
+ compatible = "ti,composite-gate-clock";
+ clocks = <&l4_ick>;
+ ti,bit-shift = <5>;
+ reg = <0x0a10>;
+ };
+
+ usb_l4_div_ick: clock-controller@a40 {
+ #clock-cells = <0>;
+ compatible = "ti,composite-divider-clock";
+ clocks = <&l4_ick>;
+ ti,bit-shift = <4>;
+ ti,max-div = <1>;
+ reg = <0x0a40>;
+ ti,index-starts-at-one;
+ };
+ };
+
+ clock-controller {
+ #clock-cells = <0>;
+ compatible = "ti,composite-clock";
+ clocks = <&usb_l4_gate_ick>, <&usb_l4_div_ick>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/ti/ti,divider-clock.yaml b/Documentation/devicetree/bindings/clock/ti/ti,divider-clock.yaml
new file mode 100644
index 000000000000..6729fcb839d2
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/ti/ti,divider-clock.yaml
@@ -0,0 +1,179 @@
+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/ti/ti,divider-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments divider clock
+
+maintainers:
+ - Tero Kristo <kristo@kernel.org>
+
+description: |
+ This clock It assumes a register-mapped adjustable clock rate divider
+ that does not gate and has only one input clock or parent. By default the
+ value programmed into the register is one less than the actual divisor value.
+ E.g:
+
+ register value actual divisor value
+ 0 1
+ 1 2
+ 2 3
+
+ This assumption may be modified by the following optional properties:
+
+ ti,index-starts-at-one - valid divisor values start at 1, not the default
+ of 0. E.g:
+ register value actual divisor value
+ 1 1
+ 2 2
+ 3 3
+
+ ti,index-power-of-two - valid divisor values are powers of two. E.g:
+ register value actual divisor value
+ 0 1
+ 1 2
+ 2 4
+
+ Additionally an array of valid dividers may be supplied like so:
+
+ ti,dividers = <4>, <8>, <0>, <16>;
+
+ Which will map the resulting values to a divisor table by their index:
+ register value actual divisor value
+ 0 4
+ 1 8
+ 2 <invalid divisor, skipped>
+ 3 16
+
+ Any zero value in this array means the corresponding bit-value is invalid
+ and must not be used.
+
+ The binding must also provide the register to control the divider and
+ unless the divider array is provided, min and max dividers. Optionally
+ the number of bits to shift that mask, if necessary. If the shift value
+ is missing it is the same as supplying a zero shift.
+
+ This binding can also optionally provide support to the hardware autoidle
+ feature.
+
+allOf:
+ - $ref: ti,autoidle.yaml#
+
+properties:
+ compatible:
+ enum:
+ - ti,divider-clock
+ - ti,composite-divider-clock
+
+ "#clock-cells":
+ const: 0
+
+ clocks:
+ maxItems: 1
+
+ clock-output-names:
+ maxItems: 1
+
+ reg:
+ maxItems: 1
+
+ ti,dividers:
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ description:
+ array of integers defining divisors
+
+ ti,bit-shift:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ number of bits to shift the divider value
+ maximum: 31
+ default: 0
+
+ ti,min-div:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ min divisor for dividing the input clock rate, only
+ needed if the first divisor is offset from the default value (1)
+ minimum: 1
+ default: 1
+
+ ti,max-div:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ max divisor for dividing the input clock rate, only needed
+ if ti,dividers is not defined.
+
+ ti,index-starts-at-one:
+ type: boolean
+ description:
+ valid divisor programming starts at 1, not zero,
+ only valid if ti,dividers is not defined
+
+ ti,index-power-of-two:
+ type: boolean
+ description:
+ valid divisor programming must be a power of two,
+ only valid if ti,dividers is not defined.
+
+ ti,set-rate-parent:
+ type: boolean
+ description:
+ clk_set_rate is propagated to parent |
+
+ ti,latch-bit:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ latch the divider value to HW, only needed if the register
+ compatible access requires this. As an example dra76x DPLL_GMAC
+ H14 divider implements such behavior.
+
+dependentSchemas:
+ ti,dividers:
+ properties:
+ ti,min-div: false
+ ti,max-div: false
+ ti,index-power-of-two: false
+ ti,index-starts-at-one: false
+
+required:
+ - compatible
+ - "#clock-cells"
+ - clocks
+ - reg
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ bus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ clock-controller@190 {
+ #clock-cells = <0>;
+ compatible = "ti,divider-clock";
+ clocks = <&dpll_usb_ck>;
+ ti,max-div = <127>;
+ reg = <0x190>;
+ ti,index-starts-at-one;
+ };
+
+ clock-controller@528 {
+ #clock-cells = <0>;
+ compatible = "ti,divider-clock";
+ clocks = <&abe_clk>;
+ ti,bit-shift = <24>;
+ reg = <0x528>;
+ ti,max-div = <2>;
+ };
+
+ clock-controller@a40 {
+ #clock-cells = <0>;
+ compatible = "ti,composite-divider-clock";
+ clocks = <&corex2_fck>;
+ ti,bit-shift = <8>;
+ reg = <0x0a40>;
+ ti,dividers = <0>, <1>, <2>, <3>, <4>, <0>, <6>, <0>, <8>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/clock/ti/ti,fixed-factor-clock.yaml b/Documentation/devicetree/bindings/clock/ti/ti,fixed-factor-clock.yaml
new file mode 100644
index 000000000000..7a63b0992976
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/ti/ti,fixed-factor-clock.yaml
@@ -0,0 +1,76 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/ti/ti,fixed-factor-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TI fixed factor rate clock sources
+
+maintainers:
+ - Tero Kristo <kristo@kernel.org>
+ - Sukrut Bellary <sbellary@baylibre.com>
+
+description:
+ This consists of a divider and a multiplier used to generate a fixed rate
+ clock. This also uses the autoidle support from TI autoidle clock.
+
+allOf:
+ - $ref: ti,autoidle.yaml#
+
+properties:
+ compatible:
+ const: ti,fixed-factor-clock
+
+ "#clock-cells":
+ const: 0
+
+ reg:
+ maxItems: 1
+
+ ti,clock-div:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: Fixed divider
+ minimum: 1
+
+ ti,clock-mult:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: Fixed multiplier
+ minimum: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-output-names:
+ maxItems: 1
+
+ ti,set-rate-parent:
+ description:
+ Propagate to parent clock
+ type: boolean
+
+required:
+ - compatible
+ - clocks
+ - "#clock-cells"
+ - ti,clock-mult
+ - ti,clock-div
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ bus{
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ clock@1b4 {
+ compatible = "ti,fixed-factor-clock";
+ reg = <0x1b4>;
+ clocks = <&dpll_usb_ck>;
+ #clock-cells = <0>;
+ ti,clock-mult = <1>;
+ ti,clock-div = <1>;
+ ti,autoidle-shift = <8>;
+ ti,invert-autoidle-bit;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/clock/ti/ti,gate-clock.yaml b/Documentation/devicetree/bindings/clock/ti/ti,gate-clock.yaml
new file mode 100644
index 000000000000..eaa727ab0d7f
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/ti/ti,gate-clock.yaml
@@ -0,0 +1,125 @@
+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/ti/ti,gate-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments gate clock
+
+maintainers:
+ - Tero Kristo <kristo@kernel.org>
+
+description: |
+ *Deprecated design pattern: one node per clock*
+
+ This clock is quite much similar to the basic gate-clock [1], however,
+ it supports a number of additional features. If no register
+ is provided for this clock, the code assumes that a clockdomain
+ will be controlled instead and the corresponding hw-ops for
+ that is used.
+
+ [1] Documentation/devicetree/bindings/clock/gpio-gate-clock.yaml
+ [2] Documentation/devicetree/bindings/clock/ti/clockdomain.txt
+
+properties:
+ compatible:
+ enum:
+ - ti,gate-clock # basic gate clock
+ - ti,wait-gate-clock # gate clock which waits until clock is
+ # active before returning from clk_enable()
+ - ti,dss-gate-clock # gate clock with DSS specific hardware
+ # handling
+ - ti,am35xx-gate-clock # gate clock with AM35xx specific hardware
+ # handling
+ - ti,clkdm-gate-clock # clockdomain gate clock, which derives its
+ # functional clock directly from a
+ # clockdomain, see [2] how to map
+ # clockdomains properly
+ - ti,hsdiv-gate-clock # gate clock with OMAP36xx specific hardware
+ # handling, required for a hardware errata
+ - ti,composite-gate-clock # composite gate clock, to be part of
+ # composite clock
+ - ti,composite-no-wait-gate-clock # composite gate clock that does not
+ # wait for clock to be active before
+ # returning from clk_enable()
+ "#clock-cells":
+ const: 0
+
+ clocks: true
+
+ clock-output-names:
+ maxItems: 1
+
+ reg:
+ maxItems: 1
+
+ ti,bit-shift:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ Number of bits to shift the bit-mask
+ maximum: 31
+ default: 0
+
+ ti,set-bit-to-disable:
+ type: boolean
+ description:
+ Inverts default gate programming. Setting the bit
+ gates the clock and clearing the bit ungates the clock.
+
+ ti,set-rate-parent:
+ type: boolean
+ description:
+ clk_set_rate is propagated to parent clock,
+
+if:
+ properties:
+ compatible:
+ contains:
+ const: ti,clkdm-gate-clock
+then:
+ properties:
+ reg: false
+ required:
+ - compatible
+ - "#clock-cells"
+ - clocks
+else:
+ required:
+ - compatible
+ - "#clock-cells"
+ - clocks
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ bus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ clock-controller@a00 {
+ #clock-cells = <0>;
+ compatible = "ti,gate-clock";
+ clocks = <&core_96m_fck>;
+ reg = <0x0a00>;
+ ti,bit-shift = <25>;
+ };
+
+ clock-controller@d00 {
+ compatible = "ti,hsdiv-gate-clock";
+ reg = <0x0d00>;
+ #clock-cells = <0>;
+ clocks = <&dpll4_m2x2_mul_ck>;
+ ti,bit-shift = <0x1b>;
+ ti,set-bit-to-disable;
+ };
+ };
+
+ - |
+ clock-controller {
+ #clock-cells = <0>;
+ compatible = "ti,clkdm-gate-clock";
+ clocks = <&emu_src_mux_ck>;
+ };
+
diff --git a/Documentation/devicetree/bindings/clock/ti/ti,interface-clock.yaml b/Documentation/devicetree/bindings/clock/ti/ti,interface-clock.yaml
new file mode 100644
index 000000000000..1eaf95d88e0b
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/ti/ti,interface-clock.yaml
@@ -0,0 +1,71 @@
+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/ti/ti,interface-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments interface clock.
+
+maintainers:
+ - Tero Kristo <kristo@kernel.org>
+
+description: |
+ This clock is quite much similar to the basic gate-clock[1], however,
+ it supports a number of additional features, including
+ companion clock finding (match corresponding functional gate
+ clock) and hardware autoidle enable / disable.
+
+ [1] Documentation/devicetree/bindings/clock/gpio-gate-clock.yaml
+
+properties:
+ compatible:
+ enum:
+ - ti,omap3-interface-clock # basic OMAP3 interface clock
+ - ti,omap3-no-wait-interface-clock # interface clock which has no hardware
+ # capability for waiting clock to be ready
+ - ti,omap3-hsotgusb-interface-clock # interface clock with USB specific HW handling
+ - ti,omap3-dss-interface-clock # interface clock with DSS specific HW handling
+ - ti,omap3-ssi-interface-clock # interface clock with SSI specific HW handling
+ - ti,am35xx-interface-clock # interface clock with AM35xx specific HW handling
+ - ti,omap2430-interface-clock # interface clock with OMAP2430 specific HW handling
+
+ "#clock-cells":
+ const: 0
+
+ clocks:
+ maxItems: 1
+
+ clock-output-names:
+ maxItems: 1
+
+ reg:
+ maxItems: 1
+
+ ti,bit-shift:
+ description:
+ bit shift for the bit enabling/disabling the clock
+ $ref: /schemas/types.yaml#/definitions/uint32
+ default: 0
+ maximum: 31
+
+required:
+ - compatible
+ - clocks
+ - '#clock-cells'
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ bus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ aes1_ick: clock-controller@3 {
+ #clock-cells = <0>;
+ compatible = "ti,omap3-interface-clock";
+ clocks = <&security_l4_ick2>;
+ reg = <3>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/clock/ti/ti,mux-clock.yaml b/Documentation/devicetree/bindings/clock/ti/ti,mux-clock.yaml
new file mode 100644
index 000000000000..485b6aae85d4
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/ti/ti,mux-clock.yaml
@@ -0,0 +1,125 @@
+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/ti/ti,mux-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments mux clock
+
+maintainers:
+ - Tero Kristo <kristo@kernel.org>
+
+description: |
+ This clock assumes a register-mapped multiplexer with multiple inpt clock
+ signals or parents, one of which can be selected as output. This clock does
+ not gate or adjust the parent rate via a divider or multiplier.
+
+ By default the "clocks" property lists the parents in the same order
+ as they are programmed into the register. E.g:
+
+ clocks = <&foo_clock>, <&bar_clock>, <&baz_clock>;
+
+ Results in programming the register as follows:
+
+ register value selected parent clock
+ 0 foo_clock
+ 1 bar_clock
+ 2 baz_clock
+
+ Some clock controller IPs do not allow a value of zero to be programmed
+ into the register, instead indexing begins at 1. The optional property
+ "index-starts-at-one" modified the scheme as follows:
+
+ register value selected clock parent
+ 1 foo_clock
+ 2 bar_clock
+ 3 baz_clock
+
+ The binding must provide the register to control the mux. Optionally
+ the number of bits to shift the control field in the register can be
+ supplied. If the shift value is missing it is the same as supplying
+ a zero shift.
+
+properties:
+ compatible:
+ enum:
+ - ti,mux-clock
+ - ti,composite-mux-clock
+
+ "#clock-cells":
+ const: 0
+
+ clocks: true
+
+ clock-output-names:
+ maxItems: 1
+
+ reg:
+ maxItems: 1
+
+ ti,bit-shift:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ Number of bits to shift the bit-mask
+ maximum: 31
+ default: 0
+
+ ti,index-starts-at-one:
+ type: boolean
+ description:
+ Valid input select programming starts at 1, not zero
+
+ ti,set-rate-parent:
+ type: boolean
+ description:
+ clk_set_rate is propagated to parent clock,
+ not supported by the composite-mux-clock subtype.
+
+ ti,latch-bit:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ Latch the mux value to HW, only needed if the register
+ access requires this. As an example, dra7x DPLL_GMAC H14 muxing
+ implements such behavior.
+ maximum: 31
+
+if:
+ properties:
+ compatible:
+ contains:
+ const: ti,composite-mux-clock
+then:
+ properties:
+ ti,set-rate-parent: false
+
+required:
+ - compatible
+ - "#clock-cells"
+ - clocks
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ bus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ clock-controller@110 {
+ compatible = "ti,mux-clock";
+ reg = <0x0110>;
+ #clock-cells = <0>;
+ clocks = <&virt_12000000_ck>, <&virt_13000000_ck>, <&virt_16800000_ck>;
+ ti,index-starts-at-one;
+ ti,set-rate-parent;
+ };
+
+ clock-controller@120 {
+ compatible = "ti,composite-mux-clock";
+ reg = <0x0120>;
+ #clock-cells = <0>;
+ clocks = <&core_96m_fck>, <&mcbsp_clks>;
+ ti,bit-shift = <4>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/clock/vf610-clock.txt b/Documentation/devicetree/bindings/clock/vf610-clock.txt
deleted file mode 100644
index 63f9f1ac3439..000000000000
--- a/Documentation/devicetree/bindings/clock/vf610-clock.txt
+++ /dev/null
@@ -1,41 +0,0 @@
-* Clock bindings for Freescale Vybrid VF610 SOC
-
-Required properties:
-- compatible: Should be "fsl,vf610-ccm"
-- reg: Address and length of the register set
-- #clock-cells: Should be <1>
-
-Optional properties:
-- clocks: list of clock identifiers which are external input clocks to the
- given clock controller. Please refer the next section to find
- the input clocks for a given controller.
-- clock-names: list of names of clocks which are exteral input clocks to the
- given clock controller.
-
-Input clocks for top clock controller:
- - sxosc (external crystal oscillator 32KHz, recommended)
- - fxosc (external crystal oscillator 24MHz, recommended)
- - audio_ext
- - enet_ext
-
-The clock consumer should specify the desired clock by having the clock
-ID in its "clocks" phandle cell. See include/dt-bindings/clock/vf610-clock.h
-for the full list of VF610 clock IDs.
-
-Examples:
-
-clks: ccm@4006b000 {
- compatible = "fsl,vf610-ccm";
- reg = <0x4006b000 0x1000>;
- #clock-cells = <1>;
- clocks = <&sxosc>, <&fxosc>;
- clock-names = "sxosc", "fxosc";
-};
-
-uart1: serial@40028000 {
- compatible = "fsl,vf610-uart";
- reg = <0x40028000 0x1000>;
- interrupts = <0 62 0x04>;
- clocks = <&clks VF610_CLK_UART1>;
- clock-names = "ipg";
-};
diff --git a/Documentation/devicetree/bindings/clock/xgene.txt b/Documentation/devicetree/bindings/clock/xgene.txt
deleted file mode 100644
index 8233e771711b..000000000000
--- a/Documentation/devicetree/bindings/clock/xgene.txt
+++ /dev/null
@@ -1,131 +0,0 @@
-Device Tree Clock bindings for APM X-Gene
-
-This binding uses the common clock binding[1].
-
-[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
-
-Required properties:
-- compatible : shall be one of the following:
- "apm,xgene-socpll-clock" - for a X-Gene SoC PLL clock
- "apm,xgene-pcppll-clock" - for a X-Gene PCP PLL clock
- "apm,xgene-pmd-clock" - for a X-Gene PMD clock
- "apm,xgene-device-clock" - for a X-Gene device clock
- "apm,xgene-socpll-v2-clock" - for a X-Gene SoC PLL v2 clock
- "apm,xgene-pcppll-v2-clock" - for a X-Gene PCP PLL v2 clock
-
-Required properties for SoC or PCP PLL clocks:
-- reg : shall be the physical PLL register address for the pll clock.
-- clocks : shall be the input parent clock phandle for the clock. This should
- be the reference clock.
-- #clock-cells : shall be set to 1.
-- clock-output-names : shall be the name of the PLL referenced by derive
- clock.
-Optional properties for PLL clocks:
-- clock-names : shall be the name of the PLL. If missing, use the device name.
-
-Required properties for PMD clocks:
-- reg : shall be the physical register address for the pmd clock.
-- clocks : shall be the input parent clock phandle for the clock.
-- #clock-cells : shall be set to 1.
-- clock-output-names : shall be the name of the clock referenced by derive
- clock.
-Optional properties for PLL clocks:
-- clock-names : shall be the name of the clock. If missing, use the device name.
-
-Required properties for device clocks:
-- reg : shall be a list of address and length pairs describing the CSR
- reset and/or the divider. Either may be omitted, but at least
- one must be present.
- - reg-names : shall be a string list describing the reg resource. This
- may include "csr-reg" and/or "div-reg". If this property
- is not present, the reg property is assumed to describe
- only "csr-reg".
-- clocks : shall be the input parent clock phandle for the clock.
-- #clock-cells : shall be set to 1.
-- clock-output-names : shall be the name of the device referenced.
-Optional properties for device clocks:
-- clock-names : shall be the name of the device clock. If missing, use the
- device name.
-- csr-offset : Offset to the CSR reset register from the reset address base.
- Default is 0.
-- csr-mask : CSR reset mask bit. Default is 0xF.
-- enable-offset : Offset to the enable register from the reset address base.
- Default is 0x8.
-- enable-mask : CSR enable mask bit. Default is 0xF.
-- divider-offset : Offset to the divider CSR register from the divider base.
- Default is 0x0.
-- divider-width : Width of the divider register. Default is 0.
-- divider-shift : Bit shift of the divider register. Default is 0.
-
-For example:
-
- pcppll: pcppll@17000100 {
- compatible = "apm,xgene-pcppll-clock";
- #clock-cells = <1>;
- clocks = <&refclk 0>;
- clock-names = "pcppll";
- reg = <0x0 0x17000100 0x0 0x1000>;
- clock-output-names = "pcppll";
- type = <0>;
- };
-
- pmd0clk: pmd0clk@7e200200 {
- compatible = "apm,xgene-pmd-clock";
- #clock-cells = <1>;
- clocks = <&pmdpll 0>;
- reg = <0x0 0x7e200200 0x0 0x10>;
- clock-output-names = "pmd0clk";
- };
-
- socpll: socpll@17000120 {
- compatible = "apm,xgene-socpll-clock";
- #clock-cells = <1>;
- clocks = <&refclk 0>;
- clock-names = "socpll";
- reg = <0x0 0x17000120 0x0 0x1000>;
- clock-output-names = "socpll";
- type = <1>;
- };
-
- qmlclk: qmlclk {
- compatible = "apm,xgene-device-clock";
- #clock-cells = <1>;
- clocks = <&socplldiv2 0>;
- clock-names = "qmlclk";
- reg = <0x0 0x1703C000 0x0 0x1000>;
- reg-name = "csr-reg";
- clock-output-names = "qmlclk";
- };
-
- ethclk: ethclk {
- compatible = "apm,xgene-device-clock";
- #clock-cells = <1>;
- clocks = <&socplldiv2 0>;
- clock-names = "ethclk";
- reg = <0x0 0x17000000 0x0 0x1000>;
- reg-names = "div-reg";
- divider-offset = <0x238>;
- divider-width = <0x9>;
- divider-shift = <0x0>;
- clock-output-names = "ethclk";
- };
-
- apbclk: apbclk {
- compatible = "apm,xgene-device-clock";
- #clock-cells = <1>;
- clocks = <&ahbclk 0>;
- clock-names = "apbclk";
- reg = <0x0 0x1F2AC000 0x0 0x1000
- 0x0 0x1F2AC000 0x0 0x1000>;
- reg-names = "csr-reg", "div-reg";
- csr-offset = <0x0>;
- csr-mask = <0x200>;
- enable-offset = <0x8>;
- enable-mask = <0x200>;
- divider-offset = <0x10>;
- divider-width = <0x2>;
- divider-shift = <0x0>;
- flags = <0x8>;
- clock-output-names = "apbclk";
- };
-
diff --git a/Documentation/devicetree/bindings/clock/xlnx,clocking-wizard.yaml b/Documentation/devicetree/bindings/clock/xlnx,clocking-wizard.yaml
index c1f04830a832..b497c28e8094 100644
--- a/Documentation/devicetree/bindings/clock/xlnx,clocking-wizard.yaml
+++ b/Documentation/devicetree/bindings/clock/xlnx,clocking-wizard.yaml
@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Xilinx clocking wizard
maintainers:
- - Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
+ - Shubhrajyoti Datta <shubhrajyoti.datta@amd.com>
description:
The clocking wizard is a soft ip clocking block of Xilinx versal. It
@@ -20,7 +20,7 @@ properties:
- xlnx,clocking-wizard
- xlnx,clocking-wizard-v5.2
- xlnx,clocking-wizard-v6.0
-
+ - xlnx,versal-clk-wizard
reg:
maxItems: 1
@@ -38,6 +38,11 @@ properties:
- const: clk_in1
- const: s_axi_aclk
+ xlnx,static-config:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ Indicate whether the core has been configured without support for dynamic
+ runtime reconfguration of the clocking primitive MMCM/PLL.
xlnx,speed-grade:
$ref: /schemas/types.yaml#/definitions/uint32
@@ -69,6 +74,7 @@ examples:
compatible = "xlnx,clocking-wizard";
reg = <0xb0000000 0x10000>;
#clock-cells = <1>;
+ xlnx,static-config;
xlnx,speed-grade = <1>;
xlnx,nr-outputs = <6>;
clock-names = "clk_in1", "s_axi_aclk";
diff --git a/Documentation/devicetree/bindings/clock/xlnx,vcu.yaml b/Documentation/devicetree/bindings/clock/xlnx,vcu.yaml
new file mode 100644
index 000000000000..19dc923e2ee9
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/xlnx,vcu.yaml
@@ -0,0 +1,59 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/xlnx,vcu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+title: LogicoreIP designed compatible with Xilinx ZYNQ family.
+
+maintainers:
+ - Rohit Visavalia <rohit.visavalia@amd.com>
+
+description:
+ LogicoreIP design to provide the isolation between processing system
+ and programmable logic. Also provides the list of register set to configure
+ the frequency.
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - xlnx,vcu
+ - xlnx,vcu-logicoreip-1.0
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: pll ref clocksource
+ - description: aclk
+
+ clock-names:
+ items:
+ - const: pll_ref
+ - const: aclk
+
+ reset-gpios:
+ maxItems: 1
+
+required:
+ - reg
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ fpga {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ xlnx_vcu: vcu@a0040000 {
+ compatible = "xlnx,vcu-logicoreip-1.0";
+ reg = <0x0 0xa0040000 0x0 0x1000>;
+ reset-gpios = <&gpio 78 GPIO_ACTIVE_HIGH>;
+ clocks = <&si570_1>, <&clkc 71>;
+ clock-names = "pll_ref", "aclk";
+ };
+ };
diff --git a/Documentation/devicetree/bindings/clock/xlnx,versal-clk.yaml b/Documentation/devicetree/bindings/clock/xlnx,versal-clk.yaml
index 229af98b1d30..bef109d163a8 100644
--- a/Documentation/devicetree/bindings/clock/xlnx,versal-clk.yaml
+++ b/Documentation/devicetree/bindings/clock/xlnx,versal-clk.yaml
@@ -7,20 +7,23 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Xilinx Versal clock controller
maintainers:
- - Michal Simek <michal.simek@xilinx.com>
- - Jolly Shah <jolly.shah@xilinx.com>
- - Rajan Vaja <rajan.vaja@xilinx.com>
+ - Michal Simek <michal.simek@amd.com>
description: |
The clock controller is a hardware block of Xilinx versal clock tree. It
reads required input clock frequencies from the devicetree and acts as clock
provider for all clock consumers of PS clocks.
-select: false
-
properties:
compatible:
- const: xlnx,versal-clk
+ oneOf:
+ - enum:
+ - xlnx,versal-clk
+ - xlnx,zynqmp-clk
+ - items:
+ - enum:
+ - xlnx,versal-net-clk
+ - const: xlnx,versal-clk
"#clock-cells":
const: 1
@@ -28,16 +31,12 @@ properties:
clocks:
description: List of clock specifiers which are external input
clocks to the given clock controller.
- items:
- - description: reference clock
- - description: alternate reference clock
- - description: alternate reference clock for programmable logic
+ minItems: 2
+ maxItems: 8
clock-names:
- items:
- - const: ref
- - const: alt_ref
- - const: pl_alt_ref
+ minItems: 2
+ maxItems: 8
required:
- compatible
@@ -47,6 +46,80 @@ required:
additionalProperties: false
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - xlnx,versal-clk
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: reference clock
+ - description: alternate reference clock for programmable logic
+
+ clock-names:
+ items:
+ - const: ref
+ - const: pl_alt_ref
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - xlnx,versal-net-clk
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: reference clock
+ - description: alternate reference clock for programmable logic
+ - description: alternate reference clock
+
+ clock-names:
+ items:
+ - const: ref
+ - const: pl_alt_ref
+ - const: alt_ref
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - xlnx,zynqmp-clk
+
+ then:
+ properties:
+ clocks:
+ minItems: 5
+ items:
+ - description: PS reference clock
+ - description: reference clock for video system
+ - description: alternative PS reference clock
+ - description: auxiliary reference clock
+ - description: transceiver reference clock
+ - description: (E)MIO clock source (Optional clock)
+ - description: GEM emio clock (Optional clock)
+ - description: Watchdog external clock (Optional clock)
+
+ clock-names:
+ minItems: 5
+ items:
+ - const: pss_ref_clk
+ - const: video_clk
+ - const: pss_alt_ref_clk
+ - const: aux_ref_clk
+ - const: gt_crx_ref_clk
+ - pattern: "^mio_clk[00-77]+.*$"
+ - pattern: "gem[0-3]+_emio_clk.*$"
+ - pattern: "swdt[0-1]+_ext_clk.*$"
+
examples:
- |
firmware {
@@ -56,9 +129,18 @@ examples:
versal_clk: clock-controller {
#clock-cells = <1>;
compatible = "xlnx,versal-clk";
- clocks = <&ref>, <&alt_ref>, <&pl_alt_ref>;
- clock-names = "ref", "alt_ref", "pl_alt_ref";
+ clocks = <&ref>, <&pl_alt_ref>;
+ clock-names = "ref", "pl_alt_ref";
};
};
};
+
+ clock-controller {
+ #clock-cells = <1>;
+ compatible = "xlnx,zynqmp-clk";
+ clocks = <&pss_ref_clk>, <&video_clk>, <&pss_alt_ref_clk>,
+ <&aux_ref_clk>, <&gt_crx_ref_clk>;
+ clock-names = "pss_ref_clk", "video_clk", "pss_alt_ref_clk",
+ "aux_ref_clk", "gt_crx_ref_clk";
+ };
...
diff --git a/Documentation/devicetree/bindings/clock/xlnx,zynqmp-clk.txt b/Documentation/devicetree/bindings/clock/xlnx,zynqmp-clk.txt
deleted file mode 100644
index 391ee1a60bed..000000000000
--- a/Documentation/devicetree/bindings/clock/xlnx,zynqmp-clk.txt
+++ /dev/null
@@ -1,63 +0,0 @@
---------------------------------------------------------------------------
-Device Tree Clock bindings for the Zynq Ultrascale+ MPSoC controlled using
-Zynq MPSoC firmware interface
---------------------------------------------------------------------------
-The clock controller is a h/w block of Zynq Ultrascale+ MPSoC clock
-tree. It reads required input clock frequencies from the devicetree and acts
-as clock provider for all clock consumers of PS clocks.
-
-See clock_bindings.txt for more information on the generic clock bindings.
-
-Required properties:
- - #clock-cells: Must be 1
- - compatible: Must contain: "xlnx,zynqmp-clk"
- - clocks: List of clock specifiers which are external input
- clocks to the given clock controller. Please refer
- the next section to find the input clocks for a
- given controller.
- - clock-names: List of clock names which are exteral input clocks
- to the given clock controller. Please refer to the
- clock bindings for more details.
-
-Input clocks for zynqmp Ultrascale+ clock controller:
-
-The Zynq UltraScale+ MPSoC has one primary and four alternative reference clock
-inputs. These required clock inputs are:
- - pss_ref_clk (PS reference clock)
- - video_clk (reference clock for video system )
- - pss_alt_ref_clk (alternative PS reference clock)
- - aux_ref_clk
- - gt_crx_ref_clk (transceiver reference clock)
-
-The following strings are optional parameters to the 'clock-names' property in
-order to provide an optional (E)MIO clock source:
- - swdt0_ext_clk
- - swdt1_ext_clk
- - gem0_emio_clk
- - gem1_emio_clk
- - gem2_emio_clk
- - gem3_emio_clk
- - mio_clk_XX # with XX = 00..77
- - mio_clk_50_or_51 #for the mux clock to gem tsu from 50 or 51
-
-
-Output clocks are registered based on clock information received
-from firmware. Output clocks indexes are mentioned in
-include/dt-bindings/clock/xlnx-zynqmp-clk.h.
-
--------
-Example
--------
-
-firmware {
- zynqmp_firmware: zynqmp-firmware {
- compatible = "xlnx,zynqmp-firmware";
- method = "smc";
- zynqmp_clk: clock-controller {
- #clock-cells = <1>;
- compatible = "xlnx,zynqmp-clk";
- clocks = <&pss_ref_clk>, <&video_clk>, <&pss_alt_ref_clk>, <&aux_ref_clk>, <&gt_crx_ref_clk>;
- clock-names = "pss_ref_clk", "video_clk", "pss_alt_ref_clk","aux_ref_clk", "gt_crx_ref_clk";
- };
- };
-};
diff --git a/Documentation/devicetree/bindings/connector/gocontroll,moduline-module-slot.yaml b/Documentation/devicetree/bindings/connector/gocontroll,moduline-module-slot.yaml
new file mode 100644
index 000000000000..a16ae2762d16
--- /dev/null
+++ b/Documentation/devicetree/bindings/connector/gocontroll,moduline-module-slot.yaml
@@ -0,0 +1,88 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/connector/gocontroll,moduline-module-slot.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: GOcontroll Moduline Module slot
+
+maintainers:
+ - Maud Spierings <maudspierings@gocontroll.com>
+
+description:
+ The GOcontroll Moduline module slot represents a connector that fullfills the
+ Moduline slot specification, and can thus house any IO module that is also
+ built to this spec.
+
+properties:
+ compatible:
+ const: gocontroll,moduline-module-slot
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ description: indicates readiness, high means busy.
+ maxItems: 1
+ reset-gpios:
+ description: resets the module, active low.
+ maxItems: 1
+ sync-gpios:
+ description: sync line between all module slots.
+ maxItems: 1
+
+ vdd-supply:
+ description: low power 3v3 supply generally for the microcontroller.
+ vddp-supply:
+ description: medium power 5v0 supply for on module low power peripherals.
+ vddhpp-supply:
+ description: high power 6v-8v supply for on module high power peripherals.
+ power-supply:
+ description: high power 6v-30v supply for high power module circuits.
+
+ i2c-bus:
+ description: i2c bus shared between module slots and the SoC
+ $ref: /schemas/types.yaml#/definitions/phandle
+
+ slot-number:
+ description:
+ The number of the module slot representing the location of on the pcb.
+ This enables access to the modules based on slot location.
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ spi-max-frequency: true
+
+required:
+ - compatible
+ - reg
+ - reset-gpios
+ - interrupts
+ - sync-gpios
+ - i2c-bus
+ - slot-number
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ connector@0 {
+ reg = <0>;
+ compatible = "gocontroll,moduline-module-slot";
+ reset-gpios = <&gpio5 10 GPIO_ACTIVE_LOW>;
+ sync-gpios = <&gpio4 16 GPIO_ACTIVE_HIGH>;
+ interrupt-parent = <&gpio4>;
+ interrupts = <5 IRQ_TYPE_EDGE_FALLING>;
+ vdd-supply = <&reg_3v3_per>;
+ vddp-supply = <&reg_5v0>;
+ vddhpp-supply = <&reg_6v4>;
+ i2c-bus = <&i2c2>;
+ slot-number = <1>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/connector/usb-connector.yaml b/Documentation/devicetree/bindings/connector/usb-connector.yaml
index ae515651fc6b..11e40d225b9f 100644
--- a/Documentation/devicetree/bindings/connector/usb-connector.yaml
+++ b/Documentation/devicetree/bindings/connector/usb-connector.yaml
@@ -30,6 +30,9 @@ properties:
- const: samsung,usb-connector-11pin
- const: usb-b-connector
+ reg:
+ maxItems: 1
+
label:
description: Symbolic name for the connector.
@@ -63,7 +66,6 @@ properties:
Particularly, if use an output GPIO to control a VBUS regulator, should
model it as a regulator. See bindings/regulator/fixed-regulator.yaml
- # The following are optional properties for "usb-c-connector".
power-role:
description: Determines the power role that the Type C connector will
support. "dual" refers to Dual Role Port (DRP).
@@ -116,30 +118,6 @@ properties:
# The following are optional properties for "usb-c-connector" with power
# delivery support.
- source-pdos:
- description: An array of u32 with each entry providing supported power
- source data object(PDO), the detailed bit definitions of PDO can be found
- in "Universal Serial Bus Power Delivery Specification" chapter 6.4.1.2
- Source_Capabilities Message, the order of each entry(PDO) should follow
- the PD spec chapter 6.4.1. Required for power source and power dual role.
- User can specify the source PDO array via PDO_FIXED/BATT/VAR/PPS_APDO()
- defined in dt-bindings/usb/pd.h.
- minItems: 1
- maxItems: 7
- $ref: /schemas/types.yaml#/definitions/uint32-array
-
- sink-pdos:
- description: An array of u32 with each entry providing supported power sink
- data object(PDO), the detailed bit definitions of PDO can be found in
- "Universal Serial Bus Power Delivery Specification" chapter 6.4.1.3
- Sink Capabilities Message, the order of each entry(PDO) should follow the
- PD spec chapter 6.4.1. Required for power sink and power dual role. User
- can specify the sink PDO array via PDO_FIXED/BATT/VAR/PPS_APDO() defined
- in dt-bindings/usb/pd.h.
- minItems: 1
- maxItems: 7
- $ref: /schemas/types.yaml#/definitions/uint32-array
-
sink-vdos:
description: An array of u32 with each entry, a Vendor Defined Message Object (VDO),
providing additional information corresponding to the product, the detailed bit
@@ -163,10 +141,50 @@ properties:
maxItems: 6
$ref: /schemas/types.yaml#/definitions/uint32-array
- op-sink-microwatt:
- description: Sink required operating power in microwatt, if source can't
- offer the power, Capability Mismatch is set. Required for power sink and
- power dual role.
+ accessory-mode-audio:
+ type: boolean
+ description: Whether the device supports Audio Adapter Accessory Mode. This
+ is only necessary if there are no other means to discover supported
+ alternative modes (e.g. through the UCSI firmware interface).
+
+ accessory-mode-debug:
+ type: boolean
+ description: Whether the device supports Debug Accessory Mode. This
+ is only necessary if there are no other means to discover supported
+ alternative modes (e.g. through the UCSI firmware interface).
+
+ altmodes:
+ type: object
+ description: List of Alternative Modes supported by the schematics on the
+ particular device. This is only necessary if there are no other means to
+ discover supported alternative modes (e.g. through the UCSI firmware
+ interface).
+
+ additionalProperties: false
+
+ patternProperties:
+ "^(displayport)$":
+ type: object
+ description:
+ A single USB-C Alternative Mode as supported by the USB-C connector logic.
+
+ additionalProperties: false
+
+ properties:
+ svid:
+ $ref: /schemas/types.yaml#/definitions/uint16
+ description: Unique value assigned by USB-IF to the Vendor / AltMode.
+ enum: [ 0xff01 ]
+ vdo:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: VDO returned by Discover Modes USB PD command.
+
+ port:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: OF graph bindings modeling a data bus to the connector, e.g.
+ there is a single High Speed (HS) port present in this connector. If there
+ is more than one bus (several port, with 'reg' property), they can be grouped
+ under 'ports'.
ports:
$ref: /schemas/graph.yaml#/properties/ports
@@ -217,18 +235,114 @@ properties:
state as defined in 7.4.2 Sink Electrical Parameters of USB Power Delivery Specification
Revision 3.0, Version 1.2. When the property is set, the port requests pSnkStby(2.5W -
5V@500mA) upon entering SNK_DISCOVERY(instead of 3A or the 1.5A, Rp current advertised, during
- SNK_DISCOVERY) and the actual currrent limit after reception of PS_Ready for PD link or during
+ SNK_DISCOVERY) and the actual current limit after reception of PS_Ready for PD link or during
SNK_READY for non-pd link.
type: boolean
+ capabilities:
+ description: A child node to contain all the selectable USB Power Delivery capabilities.
+ type: object
+
+ patternProperties:
+ "^caps-[0-9]+$":
+ description: Child nodes under "capabilities" node. Each node contains a selectable USB
+ Power Delivery capability.
+ type: object
+ $ref: "#/$defs/capabilities"
+ unevaluatedProperties: false
+
+ additionalProperties: false
+
+ sink-wait-cap-time-ms:
+ description: Represents the max time in ms that USB Type-C port (in sink
+ role) should wait for the port partner (source role) to send source caps.
+ SinkWaitCap timer starts when port in sink role attaches to the source.
+ This timer will stop when sink receives PD source cap advertisement before
+ timeout in which case it'll move to capability negotiation stage. A
+ timeout leads to a hard reset message by the port.
+ minimum: 310
+ maximum: 620
+ default: 310
+
+ ps-source-off-time-ms:
+ description: Represents the max time in ms that a DRP in source role should
+ take to turn off power after the PsSourceOff timer starts. PsSourceOff
+ timer starts when a sink's PHY layer receives EOP of the GoodCRC message
+ (corresponding to an Accept message sent in response to a PR_Swap or a
+ FR_Swap request). This timer stops when last bit of GoodCRC EOP
+ corresponding to the received PS_RDY message is transmitted by the PHY
+ layer. A timeout shall lead to error recovery in the type-c port.
+ minimum: 750
+ maximum: 920
+ default: 920
+
+ cc-debounce-time-ms:
+ description: Represents the max time in ms that a port shall wait to
+ determine if it's attached to a partner.
+ minimum: 100
+ maximum: 200
+ default: 200
+
+ sink-bc12-completion-time-ms:
+ description: Represents the max time in ms that a port in sink role takes
+ to complete Battery Charger (BC1.2) Detection. BC1.2 detection is a
+ hardware mechanism, which in some TCPC implementations, can run in
+ parallel once the Type-C connection state machine reaches the "potential
+ connect as sink" state. In TCPCs where this causes delays to respond to
+ the incoming PD messages, sink-bc12-completion-time-ms is used to delay
+ PD negotiation till BC1.2 detection completes.
+ default: 0
+
+ pd-revision:
+ description: Specifies the maximum USB PD revision and version supported by
+ the connector. This property is specified in the following order;
+ <revision_major, revision_minor, version_major, version_minor>.
+ $ref: /schemas/types.yaml#/definitions/uint8-array
+ maxItems: 4
+
dependencies:
- sink-vdos-v1: [ 'sink-vdos' ]
- sink-vdos: [ 'sink-vdos-v1' ]
+ sink-vdos-v1: [ sink-vdos ]
+ sink-vdos: [ sink-vdos-v1 ]
required:
- compatible
+$defs:
+ capabilities:
+ type: object
+
+ properties:
+ source-pdos:
+ description: An array of u32 with each entry providing supported power
+ source data object(PDO), the detailed bit definitions of PDO can be found
+ in "Universal Serial Bus Power Delivery Specification" chapter 6.4.1.2
+ Source_Capabilities Message, the order of each entry(PDO) should follow
+ the PD spec chapter 6.4.1. Required for power source and power dual role.
+ User can specify the source PDO array via PDO_FIXED/BATT/VAR/PPS_APDO()
+ defined in dt-bindings/usb/pd.h.
+ minItems: 1
+ maxItems: 7
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+
+ sink-pdos:
+ description: An array of u32 with each entry providing supported power sink
+ data object(PDO), the detailed bit definitions of PDO can be found in
+ "Universal Serial Bus Power Delivery Specification" chapter 6.4.1.3
+ Sink Capabilities Message, the order of each entry(PDO) should follow the
+ PD spec chapter 6.4.1. Required for power sink and power dual role. User
+ can specify the sink PDO array via PDO_FIXED/BATT/VAR/PPS_APDO() defined
+ in dt-bindings/usb/pd.h.
+ minItems: 1
+ maxItems: 7
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+
+ op-sink-microwatt:
+ description: Sink required operating power in microwatt, if source can't
+ offer the power, Capability Mismatch is set. Required for power sink and
+ power dual role.
+
allOf:
+ - $ref: "#/$defs/capabilities"
- if:
properties:
compatible:
@@ -257,7 +371,7 @@ anyOf:
- typec-power-opmode
- new-source-frs-typec-current
-additionalProperties: true
+unevaluatedProperties: false
examples:
# Micro-USB connector with HS lines routed via controller (MUIC).
@@ -279,6 +393,13 @@ examples:
compatible = "usb-c-connector";
label = "USB-C";
+ altmodes {
+ displayport {
+ svid = /bits/ 16 <0xff01>;
+ vdo = <0x00001c46>;
+ };
+ };
+
ports {
#address-cells = <1>;
#size-cells = <0>;
@@ -306,7 +427,7 @@ examples:
};
# USB-C connector attached to a typec port controller(ptn5110), which has
- # power delivery support and enables drp.
+ # power delivery support, explicitly defines time properties and enables drp.
- |
#include <dt-bindings/usb/pd.h>
typec: ptn5110 {
@@ -319,6 +440,23 @@ examples:
sink-pdos = <PDO_FIXED(5000, 2000, PDO_FIXED_USB_COMM)
PDO_VAR(5000, 12000, 2000)>;
op-sink-microwatt = <10000000>;
+ sink-wait-cap-time-ms = <465>;
+ ps-source-off-time-ms = <835>;
+ cc-debounce-time-ms = <101>;
+ sink-bc12-completion-time-ms = <500>;
+ };
+ };
+
+ # USB-C connector attached to SoC with a single High-Speed controller
+ - |
+ connector {
+ compatible = "usb-c-connector";
+ label = "USB-C";
+
+ port {
+ high_speed_ep: endpoint {
+ remote-endpoint = <&usb_hs_ep>;
+ };
};
};
diff --git a/Documentation/devicetree/bindings/counter/fsl,ftm-quaddec.yaml b/Documentation/devicetree/bindings/counter/fsl,ftm-quaddec.yaml
new file mode 100644
index 000000000000..384ca63b64d5
--- /dev/null
+++ b/Documentation/devicetree/bindings/counter/fsl,ftm-quaddec.yaml
@@ -0,0 +1,36 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/counter/fsl,ftm-quaddec.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: FlexTimer Quadrature decoder counter
+
+description:
+ Exposes a simple counter for the quadrature decoder mode.
+
+maintainers:
+ - Frank Li <Frank.li@nxp.com>
+
+properties:
+ compatible:
+ const: fsl,ftm-quaddec
+
+ reg:
+ maxItems: 1
+
+ big-endian: true
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ counter@29d0000 {
+ compatible = "fsl,ftm-quaddec";
+ reg = <0x29d0000 0x10000>;
+ big-endian;
+ };
diff --git a/Documentation/devicetree/bindings/counter/ftm-quaddec.txt b/Documentation/devicetree/bindings/counter/ftm-quaddec.txt
deleted file mode 100644
index 4d18cd722074..000000000000
--- a/Documentation/devicetree/bindings/counter/ftm-quaddec.txt
+++ /dev/null
@@ -1,18 +0,0 @@
-FlexTimer Quadrature decoder counter
-
-This driver exposes a simple counter for the quadrature decoder mode.
-
-Required properties:
-- compatible: Must be "fsl,ftm-quaddec".
-- reg: Must be set to the memory region of the flextimer.
-
-Optional property:
-- big-endian: Access the device registers in big-endian mode.
-
-Example:
- counter0: counter@29d0000 {
- compatible = "fsl,ftm-quaddec";
- reg = <0x0 0x29d0000 0x0 0x10000>;
- big-endian;
- status = "disabled";
- };
diff --git a/Documentation/devicetree/bindings/counter/ti-eqep.yaml b/Documentation/devicetree/bindings/counter/ti-eqep.yaml
index 85f1ff83afe7..c882ab5fcf1f 100644
--- a/Documentation/devicetree/bindings/counter/ti-eqep.yaml
+++ b/Documentation/devicetree/bindings/counter/ti-eqep.yaml
@@ -11,7 +11,9 @@ maintainers:
properties:
compatible:
- const: ti,am3352-eqep
+ enum:
+ - ti,am3352-eqep
+ - ti,am62-eqep
reg:
maxItems: 1
@@ -21,19 +23,35 @@ properties:
maxItems: 1
clocks:
- description: The clock that determines the SYSCLKOUT rate for the eQEP
- peripheral.
+ description: The functional and interface clock that determines the clock
+ rate for the eQEP peripheral.
maxItems: 1
clock-names:
const: sysclkout
+ power-domains:
+ maxItems: 1
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - ti,am62-eqep
+ then:
+ properties:
+ clock-names: false
+
+ required:
+ - power-domains
+
required:
- compatible
- reg
- interrupts
- clocks
- - clock-names
additionalProperties: false
@@ -43,7 +61,6 @@ examples:
compatible = "ti,am3352-eqep";
reg = <0x180 0x80>;
clocks = <&l4ls_gclk>;
- clock-names = "sysclkout";
interrupts = <79>;
};
diff --git a/Documentation/devicetree/bindings/cpu/cpu-topology.txt b/Documentation/devicetree/bindings/cpu/cpu-topology.txt
deleted file mode 100644
index 9bd530a35d14..000000000000
--- a/Documentation/devicetree/bindings/cpu/cpu-topology.txt
+++ /dev/null
@@ -1,553 +0,0 @@
-===========================================
-CPU topology binding description
-===========================================
-
-===========================================
-1 - Introduction
-===========================================
-
-In a SMP system, the hierarchy of CPUs is defined through three entities that
-are used to describe the layout of physical CPUs in the system:
-
-- socket
-- cluster
-- core
-- thread
-
-The bottom hierarchy level sits at core or thread level depending on whether
-symmetric multi-threading (SMT) is supported or not.
-
-For instance in a system where CPUs support SMT, "cpu" nodes represent all
-threads existing in the system and map to the hierarchy level "thread" above.
-In systems where SMT is not supported "cpu" nodes represent all cores present
-in the system and map to the hierarchy level "core" above.
-
-CPU topology bindings allow one to associate cpu nodes with hierarchical groups
-corresponding to the system hierarchy; syntactically they are defined as device
-tree nodes.
-
-Currently, only ARM/RISC-V intend to use this cpu topology binding but it may be
-used for any other architecture as well.
-
-The cpu nodes, as per bindings defined in [4], represent the devices that
-correspond to physical CPUs and are to be mapped to the hierarchy levels.
-
-A topology description containing phandles to cpu nodes that are not compliant
-with bindings standardized in [4] is therefore considered invalid.
-
-===========================================
-2 - cpu-map node
-===========================================
-
-The ARM/RISC-V CPU topology is defined within the cpu-map node, which is a direct
-child of the cpus node and provides a container where the actual topology
-nodes are listed.
-
-- cpu-map node
-
- Usage: Optional - On SMP systems provide CPUs topology to the OS.
- Uniprocessor systems do not require a topology
- description and therefore should not define a
- cpu-map node.
-
- Description: The cpu-map node is just a container node where its
- subnodes describe the CPU topology.
-
- Node name must be "cpu-map".
-
- The cpu-map node's parent node must be the cpus node.
-
- The cpu-map node's child nodes can be:
-
- - one or more cluster nodes or
- - one or more socket nodes in a multi-socket system
-
- Any other configuration is considered invalid.
-
-The cpu-map node can only contain 4 types of child nodes:
-
-- socket node
-- cluster node
-- core node
-- thread node
-
-whose bindings are described in paragraph 3.
-
-The nodes describing the CPU topology (socket/cluster/core/thread) can
-only be defined within the cpu-map node and every core/thread in the
-system must be defined within the topology. Any other configuration is
-invalid and therefore must be ignored.
-
-===========================================
-2.1 - cpu-map child nodes naming convention
-===========================================
-
-cpu-map child nodes must follow a naming convention where the node name
-must be "socketN", "clusterN", "coreN", "threadN" depending on the node type
-(ie socket/cluster/core/thread) (where N = {0, 1, ...} is the node number; nodes
-which are siblings within a single common parent node must be given a unique and
-sequential N value, starting from 0).
-cpu-map child nodes which do not share a common parent node can have the same
-name (ie same number N as other cpu-map child nodes at different device tree
-levels) since name uniqueness will be guaranteed by the device tree hierarchy.
-
-===========================================
-3 - socket/cluster/core/thread node bindings
-===========================================
-
-Bindings for socket/cluster/cpu/thread nodes are defined as follows:
-
-- socket node
-
- Description: must be declared within a cpu-map node, one node
- per physical socket in the system. A system can
- contain single or multiple physical socket.
- The association of sockets and NUMA nodes is beyond
- the scope of this bindings, please refer [2] for
- NUMA bindings.
-
- This node is optional for a single socket system.
-
- The socket node name must be "socketN" as described in 2.1 above.
- A socket node can not be a leaf node.
-
- A socket node's child nodes must be one or more cluster nodes.
-
- Any other configuration is considered invalid.
-
-- cluster node
-
- Description: must be declared within a cpu-map node, one node
- per cluster. A system can contain several layers of
- clustering within a single physical socket and cluster
- nodes can be contained in parent cluster nodes.
-
- The cluster node name must be "clusterN" as described in 2.1 above.
- A cluster node can not be a leaf node.
-
- A cluster node's child nodes must be:
-
- - one or more cluster nodes; or
- - one or more core nodes
-
- Any other configuration is considered invalid.
-
-- core node
-
- Description: must be declared in a cluster node, one node per core in
- the cluster. If the system does not support SMT, core
- nodes are leaf nodes, otherwise they become containers of
- thread nodes.
-
- The core node name must be "coreN" as described in 2.1 above.
-
- A core node must be a leaf node if SMT is not supported.
-
- Properties for core nodes that are leaf nodes:
-
- - cpu
- Usage: required
- Value type: <phandle>
- Definition: a phandle to the cpu node that corresponds to the
- core node.
-
- If a core node is not a leaf node (CPUs supporting SMT) a core node's
- child nodes can be:
-
- - one or more thread nodes
-
- Any other configuration is considered invalid.
-
-- thread node
-
- Description: must be declared in a core node, one node per thread
- in the core if the system supports SMT. Thread nodes are
- always leaf nodes in the device tree.
-
- The thread node name must be "threadN" as described in 2.1 above.
-
- A thread node must be a leaf node.
-
- A thread node must contain the following property:
-
- - cpu
- Usage: required
- Value type: <phandle>
- Definition: a phandle to the cpu node that corresponds to
- the thread node.
-
-===========================================
-4 - Example dts
-===========================================
-
-Example 1 (ARM 64-bit, 16-cpu system, two clusters of clusters in a single
-physical socket):
-
-cpus {
- #size-cells = <0>;
- #address-cells = <2>;
-
- cpu-map {
- socket0 {
- cluster0 {
- cluster0 {
- core0 {
- thread0 {
- cpu = <&CPU0>;
- };
- thread1 {
- cpu = <&CPU1>;
- };
- };
-
- core1 {
- thread0 {
- cpu = <&CPU2>;
- };
- thread1 {
- cpu = <&CPU3>;
- };
- };
- };
-
- cluster1 {
- core0 {
- thread0 {
- cpu = <&CPU4>;
- };
- thread1 {
- cpu = <&CPU5>;
- };
- };
-
- core1 {
- thread0 {
- cpu = <&CPU6>;
- };
- thread1 {
- cpu = <&CPU7>;
- };
- };
- };
- };
-
- cluster1 {
- cluster0 {
- core0 {
- thread0 {
- cpu = <&CPU8>;
- };
- thread1 {
- cpu = <&CPU9>;
- };
- };
- core1 {
- thread0 {
- cpu = <&CPU10>;
- };
- thread1 {
- cpu = <&CPU11>;
- };
- };
- };
-
- cluster1 {
- core0 {
- thread0 {
- cpu = <&CPU12>;
- };
- thread1 {
- cpu = <&CPU13>;
- };
- };
- core1 {
- thread0 {
- cpu = <&CPU14>;
- };
- thread1 {
- cpu = <&CPU15>;
- };
- };
- };
- };
- };
- };
-
- CPU0: cpu@0 {
- device_type = "cpu";
- compatible = "arm,cortex-a57";
- reg = <0x0 0x0>;
- enable-method = "spin-table";
- cpu-release-addr = <0 0x20000000>;
- };
-
- CPU1: cpu@1 {
- device_type = "cpu";
- compatible = "arm,cortex-a57";
- reg = <0x0 0x1>;
- enable-method = "spin-table";
- cpu-release-addr = <0 0x20000000>;
- };
-
- CPU2: cpu@100 {
- device_type = "cpu";
- compatible = "arm,cortex-a57";
- reg = <0x0 0x100>;
- enable-method = "spin-table";
- cpu-release-addr = <0 0x20000000>;
- };
-
- CPU3: cpu@101 {
- device_type = "cpu";
- compatible = "arm,cortex-a57";
- reg = <0x0 0x101>;
- enable-method = "spin-table";
- cpu-release-addr = <0 0x20000000>;
- };
-
- CPU4: cpu@10000 {
- device_type = "cpu";
- compatible = "arm,cortex-a57";
- reg = <0x0 0x10000>;
- enable-method = "spin-table";
- cpu-release-addr = <0 0x20000000>;
- };
-
- CPU5: cpu@10001 {
- device_type = "cpu";
- compatible = "arm,cortex-a57";
- reg = <0x0 0x10001>;
- enable-method = "spin-table";
- cpu-release-addr = <0 0x20000000>;
- };
-
- CPU6: cpu@10100 {
- device_type = "cpu";
- compatible = "arm,cortex-a57";
- reg = <0x0 0x10100>;
- enable-method = "spin-table";
- cpu-release-addr = <0 0x20000000>;
- };
-
- CPU7: cpu@10101 {
- device_type = "cpu";
- compatible = "arm,cortex-a57";
- reg = <0x0 0x10101>;
- enable-method = "spin-table";
- cpu-release-addr = <0 0x20000000>;
- };
-
- CPU8: cpu@100000000 {
- device_type = "cpu";
- compatible = "arm,cortex-a57";
- reg = <0x1 0x0>;
- enable-method = "spin-table";
- cpu-release-addr = <0 0x20000000>;
- };
-
- CPU9: cpu@100000001 {
- device_type = "cpu";
- compatible = "arm,cortex-a57";
- reg = <0x1 0x1>;
- enable-method = "spin-table";
- cpu-release-addr = <0 0x20000000>;
- };
-
- CPU10: cpu@100000100 {
- device_type = "cpu";
- compatible = "arm,cortex-a57";
- reg = <0x1 0x100>;
- enable-method = "spin-table";
- cpu-release-addr = <0 0x20000000>;
- };
-
- CPU11: cpu@100000101 {
- device_type = "cpu";
- compatible = "arm,cortex-a57";
- reg = <0x1 0x101>;
- enable-method = "spin-table";
- cpu-release-addr = <0 0x20000000>;
- };
-
- CPU12: cpu@100010000 {
- device_type = "cpu";
- compatible = "arm,cortex-a57";
- reg = <0x1 0x10000>;
- enable-method = "spin-table";
- cpu-release-addr = <0 0x20000000>;
- };
-
- CPU13: cpu@100010001 {
- device_type = "cpu";
- compatible = "arm,cortex-a57";
- reg = <0x1 0x10001>;
- enable-method = "spin-table";
- cpu-release-addr = <0 0x20000000>;
- };
-
- CPU14: cpu@100010100 {
- device_type = "cpu";
- compatible = "arm,cortex-a57";
- reg = <0x1 0x10100>;
- enable-method = "spin-table";
- cpu-release-addr = <0 0x20000000>;
- };
-
- CPU15: cpu@100010101 {
- device_type = "cpu";
- compatible = "arm,cortex-a57";
- reg = <0x1 0x10101>;
- enable-method = "spin-table";
- cpu-release-addr = <0 0x20000000>;
- };
-};
-
-Example 2 (ARM 32-bit, dual-cluster, 8-cpu system, no SMT):
-
-cpus {
- #size-cells = <0>;
- #address-cells = <1>;
-
- cpu-map {
- cluster0 {
- core0 {
- cpu = <&CPU0>;
- };
- core1 {
- cpu = <&CPU1>;
- };
- core2 {
- cpu = <&CPU2>;
- };
- core3 {
- cpu = <&CPU3>;
- };
- };
-
- cluster1 {
- core0 {
- cpu = <&CPU4>;
- };
- core1 {
- cpu = <&CPU5>;
- };
- core2 {
- cpu = <&CPU6>;
- };
- core3 {
- cpu = <&CPU7>;
- };
- };
- };
-
- CPU0: cpu@0 {
- device_type = "cpu";
- compatible = "arm,cortex-a15";
- reg = <0x0>;
- };
-
- CPU1: cpu@1 {
- device_type = "cpu";
- compatible = "arm,cortex-a15";
- reg = <0x1>;
- };
-
- CPU2: cpu@2 {
- device_type = "cpu";
- compatible = "arm,cortex-a15";
- reg = <0x2>;
- };
-
- CPU3: cpu@3 {
- device_type = "cpu";
- compatible = "arm,cortex-a15";
- reg = <0x3>;
- };
-
- CPU4: cpu@100 {
- device_type = "cpu";
- compatible = "arm,cortex-a7";
- reg = <0x100>;
- };
-
- CPU5: cpu@101 {
- device_type = "cpu";
- compatible = "arm,cortex-a7";
- reg = <0x101>;
- };
-
- CPU6: cpu@102 {
- device_type = "cpu";
- compatible = "arm,cortex-a7";
- reg = <0x102>;
- };
-
- CPU7: cpu@103 {
- device_type = "cpu";
- compatible = "arm,cortex-a7";
- reg = <0x103>;
- };
-};
-
-Example 3: HiFive Unleashed (RISC-V 64 bit, 4 core system)
-
-{
- #address-cells = <2>;
- #size-cells = <2>;
- compatible = "sifive,fu540g", "sifive,fu500";
- model = "sifive,hifive-unleashed-a00";
-
- ...
- cpus {
- #address-cells = <1>;
- #size-cells = <0>;
- cpu-map {
- socket0 {
- cluster0 {
- core0 {
- cpu = <&CPU1>;
- };
- core1 {
- cpu = <&CPU2>;
- };
- core2 {
- cpu0 = <&CPU2>;
- };
- core3 {
- cpu0 = <&CPU3>;
- };
- };
- };
- };
-
- CPU1: cpu@1 {
- device_type = "cpu";
- compatible = "sifive,rocket0", "riscv";
- reg = <0x1>;
- }
-
- CPU2: cpu@2 {
- device_type = "cpu";
- compatible = "sifive,rocket0", "riscv";
- reg = <0x2>;
- }
- CPU3: cpu@3 {
- device_type = "cpu";
- compatible = "sifive,rocket0", "riscv";
- reg = <0x3>;
- }
- CPU4: cpu@4 {
- device_type = "cpu";
- compatible = "sifive,rocket0", "riscv";
- reg = <0x4>;
- }
- }
-};
-===============================================================================
-[1] ARM Linux kernel documentation
- Documentation/devicetree/bindings/arm/cpus.yaml
-[2] Devicetree NUMA binding description
- Documentation/devicetree/bindings/numa.txt
-[3] RISC-V Linux kernel documentation
- Documentation/devicetree/bindings/riscv/cpus.yaml
-[4] https://www.devicetree.org/specifications/
diff --git a/Documentation/devicetree/bindings/cpu/idle-states.yaml b/Documentation/devicetree/bindings/cpu/idle-states.yaml
index b8cc826c9501..385b0a511652 100644
--- a/Documentation/devicetree/bindings/cpu/idle-states.yaml
+++ b/Documentation/devicetree/bindings/cpu/idle-states.yaml
@@ -243,7 +243,64 @@ description: |+
just supports idle_standby, an idle-states node is not required.
===========================================
- 6 - References
+ 6 - Qualcomm specific STATES
+ ===========================================
+
+ Idle states have different enter/exit latency and residency values.
+ The idle states supported by the QCOM SoC are defined as -
+
+ * Standby
+ * Retention
+ * Standalone Power Collapse (Standalone PC or SPC)
+ * Power Collapse (PC)
+
+ Standby: Standby does a little more in addition to architectural clock gating.
+ When the WFI instruction is executed the ARM core would gate its internal
+ clocks. In addition to gating the clocks, QCOM cpus use this instruction as a
+ trigger to execute the SPM state machine. The SPM state machine waits for the
+ interrupt to trigger the core back in to active. This triggers the cache
+ hierarchy to enter standby states, when all cpus are idle. An interrupt brings
+ the SPM state machine out of its wait, the next step is to ensure that the
+ cache hierarchy is also out of standby, and then the cpu is allowed to resume
+ execution. This state is defined as a generic ARM WFI state by the ARM cpuidle
+ driver and is not defined in the DT. The SPM state machine should be
+ configured to execute this state by default and after executing every other
+ state below.
+
+ Retention: Retention is a low power state where the core is clock gated and
+ the memory and the registers associated with the core are retained. The
+ voltage may be reduced to the minimum value needed to keep the processor
+ registers active. The SPM should be configured to execute the retention
+ sequence and would wait for interrupt, before restoring the cpu to execution
+ state. Retention may have a slightly higher latency than Standby.
+
+ Standalone PC: A cpu can power down and warmboot if there is a sufficient time
+ between the time it enters idle and the next known wake up. SPC mode is used
+ to indicate a core entering a power down state without consulting any other
+ cpu or the system resources. This helps save power only on that core. The SPM
+ sequence for this idle state is programmed to power down the supply to the
+ core, wait for the interrupt, restore power to the core, and ensure the
+ system state including cache hierarchy is ready before allowing core to
+ resume. Applying power and resetting the core causes the core to warmboot
+ back into Elevation Level (EL) which trampolines the control back to the
+ kernel. Entering a power down state for the cpu, needs to be done by trapping
+ into a EL. Failing to do so, would result in a crash enforced by the warm boot
+ code in the EL for the SoC. On SoCs with write-back L1 cache, the cache has to
+ be flushed in s/w, before powering down the core.
+
+ Power Collapse: This state is similar to the SPC mode, but distinguishes
+ itself in that the cpu acknowledges and permits the SoC to enter deeper sleep
+ modes. In a hierarchical power domain SoC, this means L2 and other caches can
+ be flushed, system bus, clocks - lowered, and SoC main XO clock gated and
+ voltages reduced, provided all cpus enter this state. Since the span of low
+ power modes possible at this state is vast, the exit latency and the residency
+ of this low power mode would be considered high even though at a cpu level,
+ this essentially is cpu power down. The SPM in this state also may handshake
+ with the Resource power manager (RPM) processor in the SoC to indicate a
+ complete application processor subsystem shut down.
+
+ ===========================================
+ 7 - References
===========================================
[1] ARM Linux Kernel documentation - CPUs bindings
@@ -259,7 +316,7 @@ description: |+
http://infocenter.arm.com/help/index.jsp
[5] ARM Linux Kernel documentation - Booting AArch64 Linux
- Documentation/arm64/booting.rst
+ Documentation/arch/arm64/booting.rst
[6] RISC-V Linux Kernel documentation - CPUs bindings
Documentation/devicetree/bindings/riscv/cpus.yaml
@@ -301,9 +358,16 @@ patternProperties:
properties:
compatible:
- enum:
- - arm,idle-state
- - riscv,idle-state
+ oneOf:
+ - items:
+ - enum:
+ - qcom,idle-state-ret
+ - qcom,idle-state-spc
+ - qcom,idle-state-pc
+ - const: arm,idle-state
+ - enum:
+ - arm,idle-state
+ - riscv,idle-state
arm,psci-suspend-param:
$ref: /schemas/types.yaml#/definitions/uint32
@@ -321,7 +385,7 @@ patternProperties:
This property is required in idle state nodes of device tree meant
for RISC-V systems. For more details on the suspend_type parameter
- refer the SBI specifiation v0.3 (or higher) [7].
+ refer the SBI specification v0.3 (or higher) [7].
local-timer-stop:
description:
@@ -852,4 +916,13 @@ examples:
};
};
+ // Example 4 - Qualcomm SPC
+ idle-states {
+ cpu_spc: cpu-spc {
+ compatible = "qcom,idle-state-spc", "arm,idle-state";
+ entry-latency-us = <150>;
+ exit-latency-us = <200>;
+ min-residency-us = <2000>;
+ };
+ };
...
diff --git a/Documentation/devicetree/bindings/cpufreq/airoha,en7581-cpufreq.yaml b/Documentation/devicetree/bindings/cpufreq/airoha,en7581-cpufreq.yaml
new file mode 100644
index 000000000000..7d4510b3219c
--- /dev/null
+++ b/Documentation/devicetree/bindings/cpufreq/airoha,en7581-cpufreq.yaml
@@ -0,0 +1,55 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/cpufreq/airoha,en7581-cpufreq.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Airoha EN7581 CPUFreq
+
+maintainers:
+ - Christian Marangi <ansuelsmth@gmail.com>
+
+description: |
+ On newer Airoha SoC, CPU Frequency is scaled indirectly with SMC commands
+ to ATF.
+
+ A virtual clock is exposed. This virtual clock is a get-only clock and
+ is used to expose the current global CPU clock. The frequency info comes
+ by the output of the SMC command that reports the clock in MHz.
+
+ The SMC sets the CPU clock by providing an index, this is modelled as
+ performance states in a power domain.
+
+ CPUs can't be individually scaled as the CPU frequency is shared across
+ all CPUs and is global.
+
+properties:
+ compatible:
+ const: airoha,en7581-cpufreq
+
+ '#clock-cells':
+ const: 0
+
+ '#power-domain-cells':
+ const: 0
+
+ operating-points-v2: true
+
+required:
+ - compatible
+ - '#clock-cells'
+ - '#power-domain-cells'
+ - operating-points-v2
+
+additionalProperties: false
+
+examples:
+ - |
+ performance-domain {
+ compatible = "airoha,en7581-cpufreq";
+
+ operating-points-v2 = <&cpu_smcc_opp_table>;
+
+ #power-domain-cells = <0>;
+ #clock-cells = <0>;
+ };
diff --git a/Documentation/devicetree/bindings/cpufreq/apple,cluster-cpufreq.yaml b/Documentation/devicetree/bindings/cpufreq/apple,cluster-cpufreq.yaml
index 76cb9726660e..b51913a81791 100644
--- a/Documentation/devicetree/bindings/cpufreq/apple,cluster-cpufreq.yaml
+++ b/Documentation/devicetree/bindings/cpufreq/apple,cluster-cpufreq.yaml
@@ -24,9 +24,20 @@ properties:
- apple,t8112-cluster-cpufreq
- const: apple,cluster-cpufreq
- items:
- - const: apple,t6000-cluster-cpufreq
+ - enum:
+ - apple,s8000-cluster-cpufreq
+ - apple,t8010-cluster-cpufreq
+ - apple,t8015-cluster-cpufreq
+ - apple,t6000-cluster-cpufreq
- const: apple,t8103-cluster-cpufreq
- const: apple,cluster-cpufreq
+ - items:
+ - const: apple,t7000-cluster-cpufreq
+ - const: apple,s5l8960x-cluster-cpufreq
+ - const: apple,s5l8960x-cluster-cpufreq
+ - items:
+ - const: apple,t6020-cluster-cpufreq
+ - const: apple,t8112-cluster-cpufreq
reg:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/cpufreq/cpufreq-dt.txt b/Documentation/devicetree/bindings/cpufreq/cpufreq-dt.txt
deleted file mode 100644
index 1d7e49167666..000000000000
--- a/Documentation/devicetree/bindings/cpufreq/cpufreq-dt.txt
+++ /dev/null
@@ -1,61 +0,0 @@
-Generic cpufreq driver
-
-It is a generic DT based cpufreq driver for frequency management. It supports
-both uniprocessor (UP) and symmetric multiprocessor (SMP) systems which share
-clock and voltage across all CPUs.
-
-Both required and optional properties listed below must be defined
-under node /cpus/cpu@0.
-
-Required properties:
-- None
-
-Optional properties:
-- operating-points: Refer to Documentation/devicetree/bindings/opp/opp-v1.yaml for
- details. OPPs *must* be supplied either via DT, i.e. this property, or
- populated at runtime.
-- clock-latency: Specify the possible maximum transition latency for clock,
- in unit of nanoseconds.
-- voltage-tolerance: Specify the CPU voltage tolerance in percentage.
-- #cooling-cells:
- Please refer to
- Documentation/devicetree/bindings/thermal/thermal-cooling-devices.yaml.
-
-Examples:
-
-cpus {
- #address-cells = <1>;
- #size-cells = <0>;
-
- cpu@0 {
- compatible = "arm,cortex-a9";
- reg = <0>;
- next-level-cache = <&L2>;
- operating-points = <
- /* kHz uV */
- 792000 1100000
- 396000 950000
- 198000 850000
- >;
- clock-latency = <61036>; /* two CLK32 periods */
- #cooling-cells = <2>;
- };
-
- cpu@1 {
- compatible = "arm,cortex-a9";
- reg = <1>;
- next-level-cache = <&L2>;
- };
-
- cpu@2 {
- compatible = "arm,cortex-a9";
- reg = <2>;
- next-level-cache = <&L2>;
- };
-
- cpu@3 {
- compatible = "arm,cortex-a9";
- reg = <3>;
- next-level-cache = <&L2>;
- };
-};
diff --git a/Documentation/devicetree/bindings/cpufreq/cpufreq-mediatek.txt b/Documentation/devicetree/bindings/cpufreq/cpufreq-mediatek.txt
deleted file mode 100644
index e0a4ba599abc..000000000000
--- a/Documentation/devicetree/bindings/cpufreq/cpufreq-mediatek.txt
+++ /dev/null
@@ -1,250 +0,0 @@
-Binding for MediaTek's CPUFreq driver
-=====================================
-
-Required properties:
-- clocks: A list of phandle + clock-specifier pairs for the clocks listed in clock names.
-- clock-names: Should contain the following:
- "cpu" - The multiplexer for clock input of CPU cluster.
- "intermediate" - A parent of "cpu" clock which is used as "intermediate" clock
- source (usually MAINPLL) when the original CPU PLL is under
- transition and not stable yet.
- Please refer to Documentation/devicetree/bindings/clock/clock-bindings.txt for
- generic clock consumer properties.
-- operating-points-v2: Please refer to Documentation/devicetree/bindings/opp/opp-v2.yaml
- for detail.
-- proc-supply: Regulator for Vproc of CPU cluster.
-
-Optional properties:
-- sram-supply: Regulator for Vsram of CPU cluster. When present, the cpufreq driver
- needs to do "voltage tracking" to step by step scale up/down Vproc and
- Vsram to fit SoC specific needs. When absent, the voltage scaling
- flow is handled by hardware, hence no software "voltage tracking" is
- needed.
-- mediatek,cci:
- Used to confirm the link status between cpufreq and mediatek cci. Because
- cpufreq and mediatek cci could share the same regulator in some MediaTek SoCs.
- To prevent the issue of high frequency and low voltage, we need to use this
- property to make sure mediatek cci is ready.
- For details of mediatek cci, please refer to
- Documentation/devicetree/bindings/interconnect/mediatek,cci.yaml
-- #cooling-cells:
- For details, please refer to
- Documentation/devicetree/bindings/thermal/thermal-cooling-devices.yaml
-
-Example 1 (MT7623 SoC):
-
- cpu_opp_table: opp_table {
- compatible = "operating-points-v2";
- opp-shared;
-
- opp-598000000 {
- opp-hz = /bits/ 64 <598000000>;
- opp-microvolt = <1050000>;
- };
-
- opp-747500000 {
- opp-hz = /bits/ 64 <747500000>;
- opp-microvolt = <1050000>;
- };
-
- opp-1040000000 {
- opp-hz = /bits/ 64 <1040000000>;
- opp-microvolt = <1150000>;
- };
-
- opp-1196000000 {
- opp-hz = /bits/ 64 <1196000000>;
- opp-microvolt = <1200000>;
- };
-
- opp-1300000000 {
- opp-hz = /bits/ 64 <1300000000>;
- opp-microvolt = <1300000>;
- };
- };
-
- cpu0: cpu@0 {
- device_type = "cpu";
- compatible = "arm,cortex-a7";
- reg = <0x0>;
- clocks = <&infracfg CLK_INFRA_CPUSEL>,
- <&apmixedsys CLK_APMIXED_MAINPLL>;
- clock-names = "cpu", "intermediate";
- operating-points-v2 = <&cpu_opp_table>;
- #cooling-cells = <2>;
- };
- cpu@1 {
- device_type = "cpu";
- compatible = "arm,cortex-a7";
- reg = <0x1>;
- operating-points-v2 = <&cpu_opp_table>;
- };
- cpu@2 {
- device_type = "cpu";
- compatible = "arm,cortex-a7";
- reg = <0x2>;
- operating-points-v2 = <&cpu_opp_table>;
- };
- cpu@3 {
- device_type = "cpu";
- compatible = "arm,cortex-a7";
- reg = <0x3>;
- operating-points-v2 = <&cpu_opp_table>;
- };
-
-Example 2 (MT8173 SoC):
- cpu_opp_table_a: opp_table_a {
- compatible = "operating-points-v2";
- opp-shared;
-
- opp-507000000 {
- opp-hz = /bits/ 64 <507000000>;
- opp-microvolt = <859000>;
- };
-
- opp-702000000 {
- opp-hz = /bits/ 64 <702000000>;
- opp-microvolt = <908000>;
- };
-
- opp-1001000000 {
- opp-hz = /bits/ 64 <1001000000>;
- opp-microvolt = <983000>;
- };
-
- opp-1105000000 {
- opp-hz = /bits/ 64 <1105000000>;
- opp-microvolt = <1009000>;
- };
-
- opp-1183000000 {
- opp-hz = /bits/ 64 <1183000000>;
- opp-microvolt = <1028000>;
- };
-
- opp-1404000000 {
- opp-hz = /bits/ 64 <1404000000>;
- opp-microvolt = <1083000>;
- };
-
- opp-1508000000 {
- opp-hz = /bits/ 64 <1508000000>;
- opp-microvolt = <1109000>;
- };
-
- opp-1573000000 {
- opp-hz = /bits/ 64 <1573000000>;
- opp-microvolt = <1125000>;
- };
- };
-
- cpu_opp_table_b: opp_table_b {
- compatible = "operating-points-v2";
- opp-shared;
-
- opp-507000000 {
- opp-hz = /bits/ 64 <507000000>;
- opp-microvolt = <828000>;
- };
-
- opp-702000000 {
- opp-hz = /bits/ 64 <702000000>;
- opp-microvolt = <867000>;
- };
-
- opp-1001000000 {
- opp-hz = /bits/ 64 <1001000000>;
- opp-microvolt = <927000>;
- };
-
- opp-1209000000 {
- opp-hz = /bits/ 64 <1209000000>;
- opp-microvolt = <968000>;
- };
-
- opp-1404000000 {
- opp-hz = /bits/ 64 <1007000000>;
- opp-microvolt = <1028000>;
- };
-
- opp-1612000000 {
- opp-hz = /bits/ 64 <1612000000>;
- opp-microvolt = <1049000>;
- };
-
- opp-1807000000 {
- opp-hz = /bits/ 64 <1807000000>;
- opp-microvolt = <1089000>;
- };
-
- opp-1989000000 {
- opp-hz = /bits/ 64 <1989000000>;
- opp-microvolt = <1125000>;
- };
- };
-
- cpu0: cpu@0 {
- device_type = "cpu";
- compatible = "arm,cortex-a53";
- reg = <0x000>;
- enable-method = "psci";
- cpu-idle-states = <&CPU_SLEEP_0>;
- clocks = <&infracfg CLK_INFRA_CA53SEL>,
- <&apmixedsys CLK_APMIXED_MAINPLL>;
- clock-names = "cpu", "intermediate";
- operating-points-v2 = <&cpu_opp_table_a>;
- };
-
- cpu1: cpu@1 {
- device_type = "cpu";
- compatible = "arm,cortex-a53";
- reg = <0x001>;
- enable-method = "psci";
- cpu-idle-states = <&CPU_SLEEP_0>;
- clocks = <&infracfg CLK_INFRA_CA53SEL>,
- <&apmixedsys CLK_APMIXED_MAINPLL>;
- clock-names = "cpu", "intermediate";
- operating-points-v2 = <&cpu_opp_table_a>;
- };
-
- cpu2: cpu@100 {
- device_type = "cpu";
- compatible = "arm,cortex-a72";
- reg = <0x100>;
- enable-method = "psci";
- cpu-idle-states = <&CPU_SLEEP_0>;
- clocks = <&infracfg CLK_INFRA_CA72SEL>,
- <&apmixedsys CLK_APMIXED_MAINPLL>;
- clock-names = "cpu", "intermediate";
- operating-points-v2 = <&cpu_opp_table_b>;
- };
-
- cpu3: cpu@101 {
- device_type = "cpu";
- compatible = "arm,cortex-a72";
- reg = <0x101>;
- enable-method = "psci";
- cpu-idle-states = <&CPU_SLEEP_0>;
- clocks = <&infracfg CLK_INFRA_CA72SEL>,
- <&apmixedsys CLK_APMIXED_MAINPLL>;
- clock-names = "cpu", "intermediate";
- operating-points-v2 = <&cpu_opp_table_b>;
- };
-
- &cpu0 {
- proc-supply = <&mt6397_vpca15_reg>;
- };
-
- &cpu1 {
- proc-supply = <&mt6397_vpca15_reg>;
- };
-
- &cpu2 {
- proc-supply = <&da9211_vcpu_reg>;
- sram-supply = <&mt6397_vsramca7_reg>;
- };
-
- &cpu3 {
- proc-supply = <&da9211_vcpu_reg>;
- sram-supply = <&mt6397_vsramca7_reg>;
- };
diff --git a/Documentation/devicetree/bindings/cpufreq/cpufreq-qcom-hw.yaml b/Documentation/devicetree/bindings/cpufreq/cpufreq-qcom-hw.yaml
index a6b3bb8fdf33..2d42fc3d8ef8 100644
--- a/Documentation/devicetree/bindings/cpufreq/cpufreq-qcom-hw.yaml
+++ b/Documentation/devicetree/bindings/cpufreq/cpufreq-qcom-hw.yaml
@@ -22,7 +22,10 @@ properties:
items:
- enum:
- qcom,qcm2290-cpufreq-hw
+ - qcom,qcs615-cpufreq-hw
- qcom,sc7180-cpufreq-hw
+ - qcom,sc8180x-cpufreq-hw
+ - qcom,sdm670-cpufreq-hw
- qcom,sdm845-cpufreq-hw
- qcom,sm6115-cpufreq-hw
- qcom,sm6350-cpufreq-hw
@@ -32,15 +35,21 @@ properties:
- description: v2 of CPUFREQ HW (EPSS)
items:
- enum:
+ - qcom,qcs8300-cpufreq-epss
- qcom,qdu1000-cpufreq-epss
+ - qcom,sa8255p-cpufreq-epss
- qcom,sa8775p-cpufreq-epss
+ - qcom,sar2130p-cpufreq-epss
- qcom,sc7280-cpufreq-epss
- qcom,sc8280xp-cpufreq-epss
+ - qcom,sdx75-cpufreq-epss
+ - qcom,sm4450-cpufreq-epss
- qcom,sm6375-cpufreq-epss
- qcom,sm8250-cpufreq-epss
- qcom,sm8350-cpufreq-epss
- qcom,sm8450-cpufreq-epss
- qcom,sm8550-cpufreq-epss
+ - qcom,sm8650-cpufreq-epss
- const: qcom,cpufreq-epss
reg:
@@ -49,6 +58,7 @@ properties:
- description: Frequency domain 0 register region
- description: Frequency domain 1 register region
- description: Frequency domain 2 register region
+ - description: Frequency domain 3 register region
reg-names:
minItems: 1
@@ -56,6 +66,7 @@ properties:
- const: freq-domain0
- const: freq-domain1
- const: freq-domain2
+ - const: freq-domain3
clocks:
items:
@@ -69,7 +80,7 @@ properties:
interrupts:
minItems: 1
- maxItems: 3
+ maxItems: 4
interrupt-names:
minItems: 1
@@ -77,6 +88,7 @@ properties:
- const: dcvsh-irq-0
- const: dcvsh-irq-1
- const: dcvsh-irq-2
+ - const: dcvsh-irq-3
'#freq-domain-cells':
const: 1
@@ -100,32 +112,37 @@ allOf:
contains:
enum:
- qcom,qcm2290-cpufreq-hw
+ - qcom,sar2130p-cpufreq-epss
+ - qcom,sdx75-cpufreq-epss
then:
properties:
reg:
- minItems: 1
maxItems: 1
reg-names:
- minItems: 1
maxItems: 1
interrupts:
- minItems: 1
maxItems: 1
interrupt-names:
- minItems: 1
+ maxItems: 1
- if:
properties:
compatible:
contains:
enum:
+ - qcom,qcs615-cpufreq-hw
- qcom,qdu1000-cpufreq-epss
+ - qcom,sa8255p-cpufreq-epss
+ - qcom,sa8775p-cpufreq-epss
- qcom,sc7180-cpufreq-hw
+ - qcom,sc8180x-cpufreq-hw
- qcom,sc8280xp-cpufreq-epss
+ - qcom,sdm670-cpufreq-hw
- qcom,sdm845-cpufreq-hw
+ - qcom,sm4450-cpufreq-epss
- qcom,sm6115-cpufreq-hw
- qcom,sm6350-cpufreq-hw
- qcom,sm6375-cpufreq-epss
@@ -145,12 +162,14 @@ allOf:
interrupt-names:
minItems: 2
+ maxItems: 2
- if:
properties:
compatible:
contains:
enum:
+ - qcom,qcs8300-cpufreq-epss
- qcom,sc7280-cpufreq-epss
- qcom,sm8250-cpufreq-epss
- qcom,sm8350-cpufreq-epss
@@ -172,6 +191,7 @@ allOf:
interrupt-names:
minItems: 3
+ maxItems: 3
- if:
properties:
@@ -196,7 +216,31 @@ allOf:
interrupt-names:
minItems: 2
+ maxItems: 2
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,sm8650-cpufreq-epss
+ then:
+ properties:
+ reg:
+ minItems: 4
+ maxItems: 4
+
+ reg-names:
+ minItems: 4
+ maxItems: 4
+
+ interrupts:
+ minItems: 4
+ maxItems: 4
+
+ interrupt-names:
+ minItems: 4
+ maxItems: 4
examples:
- |
diff --git a/Documentation/devicetree/bindings/cpufreq/mediatek,mt8196-cpufreq-hw.yaml b/Documentation/devicetree/bindings/cpufreq/mediatek,mt8196-cpufreq-hw.yaml
new file mode 100644
index 000000000000..5f3c7db3f3aa
--- /dev/null
+++ b/Documentation/devicetree/bindings/cpufreq/mediatek,mt8196-cpufreq-hw.yaml
@@ -0,0 +1,82 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/cpufreq/mediatek,mt8196-cpufreq-hw.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek Hybrid CPUFreq for MT8196/MT6991 series SoCs
+
+maintainers:
+ - Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
+
+description:
+ MT8196 uses CPUFreq management hardware that supports dynamic voltage
+ frequency scaling (dvfs), and can support several performance domains.
+
+properties:
+ compatible:
+ const: mediatek,mt8196-cpufreq-hw
+
+ reg:
+ items:
+ - description: FDVFS control register region
+ - description: OPP tables and control for performance domain 0
+ - description: OPP tables and control for performance domain 1
+ - description: OPP tables and control for performance domain 2
+
+ "#performance-domain-cells":
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - "#performance-domain-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cpu0: cpu@0 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a720";
+ enable-method = "psci";
+ performance-domains = <&performance 0>;
+ reg = <0x000>;
+ };
+
+ /* ... */
+
+ cpu6: cpu@600 {
+ device_type = "cpu";
+ compatible = "arm,cortex-x4";
+ enable-method = "psci";
+ performance-domains = <&performance 1>;
+ reg = <0x600>;
+ };
+
+ cpu7: cpu@700 {
+ device_type = "cpu";
+ compatible = "arm,cortex-x925";
+ enable-method = "psci";
+ performance-domains = <&performance 2>;
+ reg = <0x700>;
+ };
+ };
+
+ /* ... */
+
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ performance: performance-controller@c2c2034 {
+ compatible = "mediatek,mt8196-cpufreq-hw";
+ reg = <0 0xc220400 0 0x20>, <0 0xc2c0f20 0 0x120>,
+ <0 0xc2c1040 0 0x120>, <0 0xc2c1160 0 0x120>;
+ #performance-domain-cells = <1>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/cpufreq/qcom-cpufreq-nvmem.yaml b/Documentation/devicetree/bindings/cpufreq/qcom-cpufreq-nvmem.yaml
index 6f5e7904181f..547265b8b118 100644
--- a/Documentation/devicetree/bindings/cpufreq/qcom-cpufreq-nvmem.yaml
+++ b/Documentation/devicetree/bindings/cpufreq/qcom-cpufreq-nvmem.yaml
@@ -27,7 +27,12 @@ select:
enum:
- qcom,apq8064
- qcom,apq8096
+ - qcom,ipq5332
+ - qcom,ipq6018
- qcom,ipq8064
+ - qcom,ipq8074
+ - qcom,ipq9574
+ - qcom,msm8909
- qcom,msm8939
- qcom,msm8960
- qcom,msm8974
@@ -42,7 +47,9 @@ patternProperties:
- if:
properties:
compatible:
- const: operating-points-v2-kryo-cpu
+ enum:
+ - operating-points-v2-krait-cpu
+ - operating-points-v2-kryo-cpu
then:
$ref: /schemas/opp/opp-v2-kryo-cpu.yaml#
diff --git a/Documentation/devicetree/bindings/cpufreq/qemu,virtual-cpufreq.yaml b/Documentation/devicetree/bindings/cpufreq/qemu,virtual-cpufreq.yaml
new file mode 100644
index 000000000000..018d98bcdc82
--- /dev/null
+++ b/Documentation/devicetree/bindings/cpufreq/qemu,virtual-cpufreq.yaml
@@ -0,0 +1,48 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/cpufreq/qemu,virtual-cpufreq.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Virtual CPUFreq
+
+maintainers:
+ - David Dai <davidai@google.com>
+ - Saravana Kannan <saravanak@google.com>
+
+description:
+ Virtual CPUFreq is a virtualized driver in guest kernels that sends performance
+ selection of its vCPUs as a hint to the host through MMIO regions. Each vCPU
+ is associated with a performance domain which can be shared with other vCPUs.
+ Each performance domain has its own set of registers for performance controls.
+
+properties:
+ compatible:
+ const: qemu,virtual-cpufreq
+
+ reg:
+ maxItems: 1
+ description:
+ Address and size of region containing performance controls for each of the
+ performance domains. Regions for each performance domain is placed
+ contiguously and contain registers for controlling DVFS(Dynamic Frequency
+ and Voltage) characteristics. The size of the region is proportional to
+ total number of performance domains.
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ soc {
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ cpufreq@1040000 {
+ compatible = "qemu,virtual-cpufreq";
+ reg = <0x1040000 0x2000>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/cpufreq/ti-cpufreq.txt b/Documentation/devicetree/bindings/cpufreq/ti-cpufreq.txt
deleted file mode 100644
index 1758051798fe..000000000000
--- a/Documentation/devicetree/bindings/cpufreq/ti-cpufreq.txt
+++ /dev/null
@@ -1,132 +0,0 @@
-TI CPUFreq and OPP bindings
-================================
-
-Certain TI SoCs, like those in the am335x, am437x, am57xx, and dra7xx
-families support different OPPs depending on the silicon variant in use.
-The ti-cpufreq driver can use revision and an efuse value from the SoC to
-provide the OPP framework with supported hardware information. This is
-used to determine which OPPs from the operating-points-v2 table get enabled
-when it is parsed by the OPP framework.
-
-Required properties:
---------------------
-In 'cpus' nodes:
-- operating-points-v2: Phandle to the operating-points-v2 table to use.
-
-In 'operating-points-v2' table:
-- compatible: Should be
- - 'operating-points-v2-ti-cpu' for am335x, am43xx, and dra7xx/am57xx,
- omap34xx, omap36xx and am3517 SoCs
-- syscon: A phandle pointing to a syscon node representing the control module
- register space of the SoC.
-
-Optional properties:
---------------------
-- "vdd-supply", "vbb-supply": to define two regulators for dra7xx
-- "cpu0-supply", "vbb-supply": to define two regulators for omap36xx
-
-For each opp entry in 'operating-points-v2' table:
-- opp-supported-hw: Two bitfields indicating:
- 1. Which revision of the SoC the OPP is supported by
- 2. Which eFuse bits indicate this OPP is available
-
- A bitwise AND is performed against these values and if any bit
- matches, the OPP gets enabled.
-
-Example:
---------
-
-/* From arch/arm/boot/dts/am33xx.dtsi */
-cpus {
- #address-cells = <1>;
- #size-cells = <0>;
- cpu@0 {
- compatible = "arm,cortex-a8";
- device_type = "cpu";
- reg = <0>;
-
- operating-points-v2 = <&cpu0_opp_table>;
-
- clocks = <&dpll_mpu_ck>;
- clock-names = "cpu";
-
- clock-latency = <300000>; /* From omap-cpufreq driver */
- };
-};
-
-/*
- * cpu0 has different OPPs depending on SoC revision and some on revisions
- * 0x2 and 0x4 have eFuse bits that indicate if they are available or not
- */
-cpu0_opp_table: opp-table {
- compatible = "operating-points-v2-ti-cpu";
- syscon = <&scm_conf>;
-
- /*
- * The three following nodes are marked with opp-suspend
- * because they can not be enabled simultaneously on a
- * single SoC.
- */
- opp50-300000000 {
- opp-hz = /bits/ 64 <300000000>;
- opp-microvolt = <950000 931000 969000>;
- opp-supported-hw = <0x06 0x0010>;
- opp-suspend;
- };
-
- opp100-275000000 {
- opp-hz = /bits/ 64 <275000000>;
- opp-microvolt = <1100000 1078000 1122000>;
- opp-supported-hw = <0x01 0x00FF>;
- opp-suspend;
- };
-
- opp100-300000000 {
- opp-hz = /bits/ 64 <300000000>;
- opp-microvolt = <1100000 1078000 1122000>;
- opp-supported-hw = <0x06 0x0020>;
- opp-suspend;
- };
-
- opp100-500000000 {
- opp-hz = /bits/ 64 <500000000>;
- opp-microvolt = <1100000 1078000 1122000>;
- opp-supported-hw = <0x01 0xFFFF>;
- };
-
- opp100-600000000 {
- opp-hz = /bits/ 64 <600000000>;
- opp-microvolt = <1100000 1078000 1122000>;
- opp-supported-hw = <0x06 0x0040>;
- };
-
- opp120-600000000 {
- opp-hz = /bits/ 64 <600000000>;
- opp-microvolt = <1200000 1176000 1224000>;
- opp-supported-hw = <0x01 0xFFFF>;
- };
-
- opp120-720000000 {
- opp-hz = /bits/ 64 <720000000>;
- opp-microvolt = <1200000 1176000 1224000>;
- opp-supported-hw = <0x06 0x0080>;
- };
-
- oppturbo-720000000 {
- opp-hz = /bits/ 64 <720000000>;
- opp-microvolt = <1260000 1234800 1285200>;
- opp-supported-hw = <0x01 0xFFFF>;
- };
-
- oppturbo-800000000 {
- opp-hz = /bits/ 64 <800000000>;
- opp-microvolt = <1260000 1234800 1285200>;
- opp-supported-hw = <0x06 0x0100>;
- };
-
- oppnitro-1000000000 {
- opp-hz = /bits/ 64 <1000000000>;
- opp-microvolt = <1325000 1298500 1351500>;
- opp-supported-hw = <0x04 0x0200>;
- };
-};
diff --git a/Documentation/devicetree/bindings/crypto/allwinner,sun8i-ce.yaml b/Documentation/devicetree/bindings/crypto/allwinner,sun8i-ce.yaml
index 4287678aa79f..da47b601c165 100644
--- a/Documentation/devicetree/bindings/crypto/allwinner,sun8i-ce.yaml
+++ b/Documentation/devicetree/bindings/crypto/allwinner,sun8i-ce.yaml
@@ -18,6 +18,7 @@ properties:
- allwinner,sun50i-a64-crypto
- allwinner,sun50i-h5-crypto
- allwinner,sun50i-h6-crypto
+ - allwinner,sun50i-h616-crypto
reg:
maxItems: 1
@@ -49,6 +50,7 @@ if:
compatible:
enum:
- allwinner,sun20i-d1-crypto
+ - allwinner,sun50i-h616-crypto
then:
properties:
clocks:
diff --git a/Documentation/devicetree/bindings/crypto/amd,ccp-seattle-v1a.yaml b/Documentation/devicetree/bindings/crypto/amd,ccp-seattle-v1a.yaml
new file mode 100644
index 000000000000..5fb708471059
--- /dev/null
+++ b/Documentation/devicetree/bindings/crypto/amd,ccp-seattle-v1a.yaml
@@ -0,0 +1,41 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/amd,ccp-seattle-v1a.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: AMD Cryptographic Coprocessor (ccp)
+
+maintainers:
+ - Tom Lendacky <thomas.lendacky@amd.com>
+
+properties:
+ compatible:
+ const: amd,ccp-seattle-v1a
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ dma-coherent: true
+
+ iommus:
+ maxItems: 4
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+additionalProperties: false
+
+examples:
+ - |
+ crypto@e0100000 {
+ compatible = "amd,ccp-seattle-v1a";
+ reg = <0xe0100000 0x10000>;
+ interrupts = <0 3 4>;
+ dma-coherent;
+ };
diff --git a/Documentation/devicetree/bindings/crypto/amd-ccp.txt b/Documentation/devicetree/bindings/crypto/amd-ccp.txt
deleted file mode 100644
index d87579d63da6..000000000000
--- a/Documentation/devicetree/bindings/crypto/amd-ccp.txt
+++ /dev/null
@@ -1,17 +0,0 @@
-* AMD Cryptographic Coprocessor driver (ccp)
-
-Required properties:
-- compatible: Should be "amd,ccp-seattle-v1a"
-- reg: Address and length of the register set for the device
-- interrupts: Should contain the CCP interrupt
-
-Optional properties:
-- dma-coherent: Present if dma operations are coherent
-
-Example:
- ccp@e0100000 {
- compatible = "amd,ccp-seattle-v1a";
- reg = <0 0xe0100000 0 0x10000>;
- interrupt-parent = <&gic>;
- interrupts = <0 3 4>;
- };
diff --git a/Documentation/devicetree/bindings/crypto/amlogic,gxl-crypto.yaml b/Documentation/devicetree/bindings/crypto/amlogic,gxl-crypto.yaml
index ecf98a9e72b2..948e11ebe4ee 100644
--- a/Documentation/devicetree/bindings/crypto/amlogic,gxl-crypto.yaml
+++ b/Documentation/devicetree/bindings/crypto/amlogic,gxl-crypto.yaml
@@ -19,8 +19,8 @@ properties:
interrupts:
items:
- - description: "Interrupt for flow 0"
- - description: "Interrupt for flow 1"
+ - description: Interrupt for flow 0
+ - description: Interrupt for flow 1
clocks:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/crypto/artpec6-crypto.txt b/Documentation/devicetree/bindings/crypto/artpec6-crypto.txt
deleted file mode 100644
index d9cca4875bd6..000000000000
--- a/Documentation/devicetree/bindings/crypto/artpec6-crypto.txt
+++ /dev/null
@@ -1,16 +0,0 @@
-Axis crypto engine with PDMA interface.
-
-Required properties:
-- compatible : Should be one of the following strings:
- "axis,artpec6-crypto" for the version in the Axis ARTPEC-6 SoC
- "axis,artpec7-crypto" for the version in the Axis ARTPEC-7 SoC.
-- reg: Base address and size for the PDMA register area.
-- interrupts: Interrupt handle for the PDMA interrupt line.
-
-Example:
-
-crypto@f4264000 {
- compatible = "axis,artpec6-crypto";
- reg = <0xf4264000 0x1000>;
- interrupts = <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>;
-};
diff --git a/Documentation/devicetree/bindings/crypto/atmel,at91sam9g46-aes.yaml b/Documentation/devicetree/bindings/crypto/atmel,at91sam9g46-aes.yaml
index 0b7383b3106b..19010f90198a 100644
--- a/Documentation/devicetree/bindings/crypto/atmel,at91sam9g46-aes.yaml
+++ b/Documentation/devicetree/bindings/crypto/atmel,at91sam9g46-aes.yaml
@@ -12,7 +12,13 @@ maintainers:
properties:
compatible:
- const: atmel,at91sam9g46-aes
+ oneOf:
+ - const: atmel,at91sam9g46-aes
+ - items:
+ - enum:
+ - microchip,sam9x7-aes
+ - microchip,sama7d65-aes
+ - const: atmel,at91sam9g46-aes
reg:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/crypto/atmel,at91sam9g46-sha.yaml b/Documentation/devicetree/bindings/crypto/atmel,at91sam9g46-sha.yaml
index ee2ffb034325..39e076b275b3 100644
--- a/Documentation/devicetree/bindings/crypto/atmel,at91sam9g46-sha.yaml
+++ b/Documentation/devicetree/bindings/crypto/atmel,at91sam9g46-sha.yaml
@@ -12,7 +12,13 @@ maintainers:
properties:
compatible:
- const: atmel,at91sam9g46-sha
+ oneOf:
+ - const: atmel,at91sam9g46-sha
+ - items:
+ - enum:
+ - microchip,sam9x7-sha
+ - microchip,sama7d65-sha
+ - const: atmel,at91sam9g46-sha
reg:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/crypto/atmel,at91sam9g46-tdes.yaml b/Documentation/devicetree/bindings/crypto/atmel,at91sam9g46-tdes.yaml
index 3d6ed24b1b00..6f16008c4251 100644
--- a/Documentation/devicetree/bindings/crypto/atmel,at91sam9g46-tdes.yaml
+++ b/Documentation/devicetree/bindings/crypto/atmel,at91sam9g46-tdes.yaml
@@ -12,7 +12,13 @@ maintainers:
properties:
compatible:
- const: atmel,at91sam9g46-tdes
+ oneOf:
+ - const: atmel,at91sam9g46-tdes
+ - items:
+ - enum:
+ - microchip,sam9x7-tdes
+ - microchip,sama7d65-tdes
+ - const: atmel,at91sam9g46-tdes
reg:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/crypto/axis,artpec6-crypto.yaml b/Documentation/devicetree/bindings/crypto/axis,artpec6-crypto.yaml
new file mode 100644
index 000000000000..c91f81e3c39e
--- /dev/null
+++ b/Documentation/devicetree/bindings/crypto/axis,artpec6-crypto.yaml
@@ -0,0 +1,39 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/crypto/axis,artpec6-crypto.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Axis ARTPEC6 crypto engine with PDMA interface
+
+maintainers:
+ - Lars Persson <lars.persson@axis.com>
+
+properties:
+ compatible:
+ enum:
+ - axis,artpec6-crypto
+ - axis,artpec7-crypto
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ crypto@f4264000 {
+ compatible = "axis,artpec6-crypto";
+ reg = <0xf4264000 0x1000>;
+ interrupts = <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>;
+ };
diff --git a/Documentation/devicetree/bindings/crypto/brcm,spu-crypto.txt b/Documentation/devicetree/bindings/crypto/brcm,spu-crypto.txt
deleted file mode 100644
index 29b6007568eb..000000000000
--- a/Documentation/devicetree/bindings/crypto/brcm,spu-crypto.txt
+++ /dev/null
@@ -1,22 +0,0 @@
-The Broadcom Secure Processing Unit (SPU) hardware supports symmetric
-cryptographic offload for Broadcom SoCs. A SoC may have multiple SPU hardware
-blocks.
-
-Required properties:
-- compatible: Should be one of the following:
- brcm,spum-crypto - for devices with SPU-M hardware
- brcm,spu2-crypto - for devices with SPU2 hardware
- brcm,spu2-v2-crypto - for devices with enhanced SPU2 hardware features like SHA3
- and Rabin Fingerprint support
- brcm,spum-nsp-crypto - for the Northstar Plus variant of the SPU-M hardware
-
-- reg: Should contain SPU registers location and length.
-- mboxes: The mailbox channel to be used to communicate with the SPU.
- Mailbox channels correspond to DMA rings on the device.
-
-Example:
- crypto@612d0000 {
- compatible = "brcm,spum-crypto";
- reg = <0 0x612d0000 0 0x900>;
- mboxes = <&pdc0 0>;
- };
diff --git a/Documentation/devicetree/bindings/crypto/brcm,spum-crypto.yaml b/Documentation/devicetree/bindings/crypto/brcm,spum-crypto.yaml
new file mode 100644
index 000000000000..9a5fb61727fa
--- /dev/null
+++ b/Documentation/devicetree/bindings/crypto/brcm,spum-crypto.yaml
@@ -0,0 +1,44 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/brcm,spum-crypto.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Broadcom SPU Crypto Offload
+
+maintainers:
+ - Rob Rice <rob.rice@broadcom.com>
+
+description:
+ The Broadcom Secure Processing Unit (SPU) hardware supports symmetric
+ cryptographic offload for Broadcom SoCs. A SoC may have multiple SPU hardware
+ blocks.
+
+properties:
+ compatible:
+ enum:
+ - brcm,spum-crypto
+ - brcm,spu2-crypto
+ - brcm,spu2-v2-crypto # enhanced SPU2 hardware features like SHA3 and Rabin Fingerprint support
+ - brcm,spum-nsp-crypto # Northstar Plus variant of the SPU-M hardware
+
+ reg:
+ maxItems: 1
+
+ mboxes:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - mboxes
+
+additionalProperties: false
+
+examples:
+ - |
+ crypto@612d0000 {
+ compatible = "brcm,spum-crypto";
+ reg = <0x612d0000 0x900>;
+ mboxes = <&pdc0 0>;
+ };
diff --git a/Documentation/devicetree/bindings/crypto/fsl,sec-v4.0-mon.yaml b/Documentation/devicetree/bindings/crypto/fsl,sec-v4.0-mon.yaml
index 286dffa0671b..9f8e6689cd94 100644
--- a/Documentation/devicetree/bindings/crypto/fsl,sec-v4.0-mon.yaml
+++ b/Documentation/devicetree/bindings/crypto/fsl,sec-v4.0-mon.yaml
@@ -83,6 +83,8 @@ properties:
by SNVS ONOFF, the driver can report the status of POWER key and wakeup
system if pressed after system suspend.
+ $ref: /schemas/input/input.yaml
+
properties:
compatible:
const: fsl,sec-v4.0-pwrkey
@@ -103,8 +105,17 @@ properties:
wakeup-source: true
linux,keycode:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ default: 116
+ deprecated: true
+
+ linux,keycodes:
+ maxItems: 1
default: 116
+ power-off-time-sec:
+ enum: [0, 5, 10, 15]
+
required:
- compatible
- interrupts
diff --git a/Documentation/devicetree/bindings/crypto/fsl,sec-v4.0.yaml b/Documentation/devicetree/bindings/crypto/fsl,sec-v4.0.yaml
index 0a9ed2848b7c..dcc755d2709a 100644
--- a/Documentation/devicetree/bindings/crypto/fsl,sec-v4.0.yaml
+++ b/Documentation/devicetree/bindings/crypto/fsl,sec-v4.0.yaml
@@ -38,12 +38,16 @@ properties:
compatible:
oneOf:
- items:
- - const: fsl,sec-v5.4
+ - enum:
+ - fsl,sec-v5.4
+ - fsl,sec-v6.0
- const: fsl,sec-v5.0
- const: fsl,sec-v4.0
- items:
- enum:
- fsl,imx6ul-caam
+ - fsl,imx8qm-caam
+ - fsl,imx8qxp-caam
- fsl,sec-v5.0
- const: fsl,sec-v4.0
- const: fsl,sec-v4.0
@@ -75,6 +79,9 @@ properties:
interrupts:
maxItems: 1
+ power-domains:
+ maxItems: 1
+
fsl,sec-era:
description: Defines the 'ERA' of the SEC device.
$ref: /schemas/types.yaml#/definitions/uint32
@@ -94,12 +101,21 @@ patternProperties:
compatible:
oneOf:
- items:
- - const: fsl,sec-v5.4-job-ring
+ - const: fsl,sec-v6.0-job-ring
+ - const: fsl,sec-v5.2-job-ring
- const: fsl,sec-v5.0-job-ring
+ - const: fsl,sec-v4.4-job-ring
- const: fsl,sec-v4.0-job-ring
- items:
+ - const: fsl,sec-v5.4-job-ring
- const: fsl,sec-v5.0-job-ring
- const: fsl,sec-v4.0-job-ring
+ - items:
+ - enum:
+ - fsl,imx8qm-job-ring
+ - fsl,imx8qxp-job-ring
+ - fsl,sec-v5.0-job-ring
+ - const: fsl,sec-v4.0-job-ring
- const: fsl,sec-v4.0-job-ring
reg:
@@ -108,14 +124,32 @@ patternProperties:
interrupts:
maxItems: 1
+ power-domains:
+ maxItems: 1
+
fsl,liodn:
description:
Specifies the LIODN to be used in conjunction with the ppid-to-liodn
table that specifies the PPID to LIODN mapping. Needed if the PAMU is
used. Value is a 12 bit value where value is a LIODN ID for this JR.
This property is normally set by boot firmware.
- $ref: /schemas/types.yaml#/definitions/uint32
- maximum: 0xfff
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ items:
+ - maximum: 0xfff
+ allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - fsl,imx8qm-job-ring
+ - fsl,imx8qxp-job-ring
+ then:
+ required:
+ - power-domains
+ else:
+ properties:
+ power-domains: false
'^rtic@[0-9a-f]+$':
type: object
@@ -137,7 +171,10 @@ patternProperties:
- const: fsl,sec-v4.0-rtic
reg:
- maxItems: 1
+ items:
+ - description: RTIC control and status register space.
+ - description: RTIC recoverable error indication register space.
+ minItems: 1
ranges:
maxItems: 1
@@ -183,8 +220,9 @@ patternProperties:
Needed if the PAMU is used. Value is a 12 bit value where value
is a LIODN ID for this JR. This property is normally set by boot
firmware.
- $ref: /schemas/types.yaml#/definitions/uint32
- maximum: 0xfff
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ items:
+ - maximum: 0xfff
fsl,rtic-region:
description:
@@ -199,6 +237,20 @@ required:
- reg
- ranges
+if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - fsl,imx8qm-caam
+ - fsl,imx8qxp-caam
+then:
+ required:
+ - power-domains
+else:
+ properties:
+ power-domains: false
+
additionalProperties: false
examples:
diff --git a/Documentation/devicetree/bindings/crypto/fsl,sec2.0.yaml b/Documentation/devicetree/bindings/crypto/fsl,sec2.0.yaml
new file mode 100644
index 000000000000..2091b89bb726
--- /dev/null
+++ b/Documentation/devicetree/bindings/crypto/fsl,sec2.0.yaml
@@ -0,0 +1,144 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/crypto/fsl,sec2.0.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale SoC SEC Security Engines versions 1.x-2.x-3.x
+
+maintainers:
+ - J. Neuschäfer <j.ne@posteo.net>
+
+properties:
+ compatible:
+ description:
+ Should contain entries for this and backward compatible SEC versions,
+ high to low. Warning - SEC1 and SEC2 are mutually exclusive.
+ oneOf:
+ - items:
+ - const: fsl,sec3.3
+ - const: fsl,sec3.1
+ - const: fsl,sec3.0
+ - const: fsl,sec2.4
+ - const: fsl,sec2.2
+ - const: fsl,sec2.1
+ - const: fsl,sec2.0
+ - items:
+ - const: fsl,sec3.1
+ - const: fsl,sec3.0
+ - const: fsl,sec2.4
+ - const: fsl,sec2.2
+ - const: fsl,sec2.1
+ - const: fsl,sec2.0
+ - items:
+ - const: fsl,sec3.0
+ - const: fsl,sec2.4
+ - const: fsl,sec2.2
+ - const: fsl,sec2.1
+ - const: fsl,sec2.0
+ - items:
+ - const: fsl,sec2.4
+ - const: fsl,sec2.2
+ - const: fsl,sec2.1
+ - const: fsl,sec2.0
+ - items:
+ - const: fsl,sec2.2
+ - const: fsl,sec2.1
+ - const: fsl,sec2.0
+ - items:
+ - const: fsl,sec2.1
+ - const: fsl,sec2.0
+ - items:
+ - const: fsl,sec2.0
+ - items:
+ - const: fsl,sec1.2
+ - const: fsl,sec1.0
+ - items:
+ - const: fsl,sec1.0
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ fsl,num-channels:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [ 1, 4 ]
+ description: An integer representing the number of channels available.
+
+ fsl,channel-fifo-len:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ maximum: 100
+ description:
+ An integer representing the number of descriptor pointers each channel
+ fetch fifo can hold.
+
+ fsl,exec-units-mask:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ maximum: 0xfff
+ description: |
+ The bitmask representing what execution units (EUs) are available.
+ EU information should be encoded following the SEC's Descriptor Header
+ Dword EU_SEL0 field documentation, i.e. as follows:
+
+ bit 0 = reserved - should be 0
+ bit 1 = set if SEC has the ARC4 EU (AFEU)
+ bit 2 = set if SEC has the DES/3DES EU (DEU)
+ bit 3 = set if SEC has the message digest EU (MDEU/MDEU-A)
+ bit 4 = set if SEC has the random number generator EU (RNG)
+ bit 5 = set if SEC has the public key EU (PKEU)
+ bit 6 = set if SEC has the AES EU (AESU)
+ bit 7 = set if SEC has the Kasumi EU (KEU)
+ bit 8 = set if SEC has the CRC EU (CRCU)
+ bit 11 = set if SEC has the message digest EU extended alg set (MDEU-B)
+
+ remaining bits are reserved for future SEC EUs.
+
+ fsl,descriptor-types-mask:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: |
+ The bitmask representing what descriptors are available. Descriptor type
+ information should be encoded following the SEC's Descriptor Header Dword
+ DESC_TYPE field documentation, i.e. as follows:
+
+ bit 0 = SEC supports descriptor type aesu_ctr_nonsnoop
+ bit 1 = SEC supports descriptor type ipsec_esp
+ bit 2 = SEC supports descriptor type common_nonsnoop
+ bit 3 = SEC supports descriptor type 802.11i AES ccmp
+ bit 4 = SEC supports descriptor type hmac_snoop_no_afeu
+ bit 5 = SEC supports descriptor type srtp
+ bit 6 = SEC supports descriptor type non_hmac_snoop_no_afeu
+ bit 7 = SEC supports descriptor type pkeu_assemble
+ bit 8 = SEC supports descriptor type aesu_key_expand_output
+ bit 9 = SEC supports descriptor type pkeu_ptmul
+ bit 10 = SEC supports descriptor type common_nonsnoop_afeu
+ bit 11 = SEC supports descriptor type pkeu_ptadd_dbl
+
+ ..and so on and so forth.
+
+required:
+ - compatible
+ - reg
+ - fsl,num-channels
+ - fsl,channel-fifo-len
+ - fsl,exec-units-mask
+ - fsl,descriptor-types-mask
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ /* MPC8548E */
+ crypto@30000 {
+ compatible = "fsl,sec2.1", "fsl,sec2.0";
+ reg = <0x30000 0x10000>;
+ interrupts = <29 2>;
+ interrupt-parent = <&mpic>;
+ fsl,num-channels = <4>;
+ fsl,channel-fifo-len = <24>;
+ fsl,exec-units-mask = <0xfe>;
+ fsl,descriptor-types-mask = <0x12b0ebf>;
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/crypto/fsl-dcp.yaml b/Documentation/devicetree/bindings/crypto/fsl-dcp.yaml
index 99be01539fcd..8dd36c2f76fd 100644
--- a/Documentation/devicetree/bindings/crypto/fsl-dcp.yaml
+++ b/Documentation/devicetree/bindings/crypto/fsl-dcp.yaml
@@ -11,9 +11,15 @@ maintainers:
properties:
compatible:
- enum:
- - fsl,imx23-dcp
- - fsl,imx28-dcp
+ oneOf:
+ - enum:
+ - fsl,imx23-dcp
+ - fsl,imx28-dcp
+ - items:
+ - enum:
+ - fsl,imx6sl-dcp
+ - fsl,imx6ull-dcp
+ - const: fsl,imx28-dcp
reg:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/crypto/fsl-imx-sahara.yaml b/Documentation/devicetree/bindings/crypto/fsl-imx-sahara.yaml
index d531f3af3ea4..41df80bcdcd9 100644
--- a/Documentation/devicetree/bindings/crypto/fsl-imx-sahara.yaml
+++ b/Documentation/devicetree/bindings/crypto/fsl-imx-sahara.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/crypto/fsl-imx-sahara.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Freescale SAHARA Cryptographic Accelerator included in some i.MX chips
+title: Freescale SAHARA Cryptographic Accelerator
maintainers:
- Steffen Trumtrar <s.trumtrar@pengutronix.de>
@@ -19,19 +19,56 @@ properties:
maxItems: 1
interrupts:
- maxItems: 1
+ items:
+ - description: SAHARA Interrupt for Host 0
+ - description: SAHARA Interrupt for Host 1
+ minItems: 1
+
+ clocks:
+ items:
+ - description: Sahara IPG clock
+ - description: Sahara AHB clock
+
+ clock-names:
+ items:
+ - const: ipg
+ - const: ahb
required:
- compatible
- reg
- interrupts
+ - clocks
+ - clock-names
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - fsl,imx53-sahara
+ then:
+ properties:
+ interrupts:
+ minItems: 2
+ maxItems: 2
+ else:
+ properties:
+ interrupts:
+ maxItems: 1
additionalProperties: false
examples:
- |
+ #include <dt-bindings/clock/imx27-clock.h>
+
crypto@10025000 {
compatible = "fsl,imx27-sahara";
- reg = < 0x10025000 0x800>;
+ reg = <0x10025000 0x800>;
interrupts = <75>;
+ clocks = <&clks IMX27_CLK_SAHARA_IPG_GATE>,
+ <&clks IMX27_CLK_SAHARA_AHB_GATE>;
+ clock-names = "ipg", "ahb";
};
diff --git a/Documentation/devicetree/bindings/crypto/fsl-sec2.txt b/Documentation/devicetree/bindings/crypto/fsl-sec2.txt
deleted file mode 100644
index 125f155d00d0..000000000000
--- a/Documentation/devicetree/bindings/crypto/fsl-sec2.txt
+++ /dev/null
@@ -1,65 +0,0 @@
-Freescale SoC SEC Security Engines versions 1.x-2.x-3.x
-
-Required properties:
-
-- compatible : Should contain entries for this and backward compatible
- SEC versions, high to low, e.g., "fsl,sec2.1", "fsl,sec2.0" (SEC2/3)
- e.g., "fsl,sec1.2", "fsl,sec1.0" (SEC1)
- warning: SEC1 and SEC2 are mutually exclusive
-- reg : Offset and length of the register set for the device
-- interrupts : the SEC's interrupt number
-- fsl,num-channels : An integer representing the number of channels
- available.
-- fsl,channel-fifo-len : An integer representing the number of
- descriptor pointers each channel fetch fifo can hold.
-- fsl,exec-units-mask : The bitmask representing what execution units
- (EUs) are available. It's a single 32-bit cell. EU information
- should be encoded following the SEC's Descriptor Header Dword
- EU_SEL0 field documentation, i.e. as follows:
-
- bit 0 = reserved - should be 0
- bit 1 = set if SEC has the ARC4 EU (AFEU)
- bit 2 = set if SEC has the DES/3DES EU (DEU)
- bit 3 = set if SEC has the message digest EU (MDEU/MDEU-A)
- bit 4 = set if SEC has the random number generator EU (RNG)
- bit 5 = set if SEC has the public key EU (PKEU)
- bit 6 = set if SEC has the AES EU (AESU)
- bit 7 = set if SEC has the Kasumi EU (KEU)
- bit 8 = set if SEC has the CRC EU (CRCU)
- bit 11 = set if SEC has the message digest EU extended alg set (MDEU-B)
-
-remaining bits are reserved for future SEC EUs.
-
-- fsl,descriptor-types-mask : The bitmask representing what descriptors
- are available. It's a single 32-bit cell. Descriptor type information
- should be encoded following the SEC's Descriptor Header Dword DESC_TYPE
- field documentation, i.e. as follows:
-
- bit 0 = set if SEC supports the aesu_ctr_nonsnoop desc. type
- bit 1 = set if SEC supports the ipsec_esp descriptor type
- bit 2 = set if SEC supports the common_nonsnoop desc. type
- bit 3 = set if SEC supports the 802.11i AES ccmp desc. type
- bit 4 = set if SEC supports the hmac_snoop_no_afeu desc. type
- bit 5 = set if SEC supports the srtp descriptor type
- bit 6 = set if SEC supports the non_hmac_snoop_no_afeu desc.type
- bit 7 = set if SEC supports the pkeu_assemble descriptor type
- bit 8 = set if SEC supports the aesu_key_expand_output desc.type
- bit 9 = set if SEC supports the pkeu_ptmul descriptor type
- bit 10 = set if SEC supports the common_nonsnoop_afeu desc. type
- bit 11 = set if SEC supports the pkeu_ptadd_dbl descriptor type
-
- ..and so on and so forth.
-
-Example:
-
- /* MPC8548E */
- crypto@30000 {
- compatible = "fsl,sec2.1", "fsl,sec2.0";
- reg = <0x30000 0x10000>;
- interrupts = <29 2>;
- interrupt-parent = <&mpic>;
- fsl,num-channels = <4>;
- fsl,channel-fifo-len = <24>;
- fsl,exec-units-mask = <0xfe>;
- fsl,descriptor-types-mask = <0x12b0ebf>;
- };
diff --git a/Documentation/devicetree/bindings/crypto/fsl-sec6.txt b/Documentation/devicetree/bindings/crypto/fsl-sec6.txt
deleted file mode 100644
index 73b0eb950bb3..000000000000
--- a/Documentation/devicetree/bindings/crypto/fsl-sec6.txt
+++ /dev/null
@@ -1,157 +0,0 @@
-SEC 6 is as Freescale's Cryptographic Accelerator and Assurance Module (CAAM).
-Currently Freescale powerpc chip C29X is embedded with SEC 6.
-SEC 6 device tree binding include:
- -SEC 6 Node
- -Job Ring Node
- -Full Example
-
-=====================================================================
-SEC 6 Node
-
-Description
-
- Node defines the base address of the SEC 6 block.
- This block specifies the address range of all global
- configuration registers for the SEC 6 block.
- For example, In C293, we could see three SEC 6 node.
-
-PROPERTIES
-
- - compatible
- Usage: required
- Value type: <string>
- Definition: Must include "fsl,sec-v6.0".
-
- - fsl,sec-era
- Usage: optional
- Value type: <u32>
- Definition: A standard property. Define the 'ERA' of the SEC
- device.
-
- - #address-cells
- Usage: required
- Value type: <u32>
- Definition: A standard property. Defines the number of cells
- for representing physical addresses in child nodes.
-
- - #size-cells
- Usage: required
- Value type: <u32>
- Definition: A standard property. Defines the number of cells
- for representing the size of physical addresses in
- child nodes.
-
- - reg
- Usage: required
- Value type: <prop-encoded-array>
- Definition: A standard property. Specifies the physical
- address and length of the SEC 6 configuration registers.
-
- - ranges
- Usage: required
- Value type: <prop-encoded-array>
- Definition: A standard property. Specifies the physical address
- range of the SEC 6.0 register space (-SNVS not included). A
- triplet that includes the child address, parent address, &
- length.
-
- Note: All other standard properties (see the Devicetree Specification)
- are allowed but are optional.
-
-EXAMPLE
- crypto@a0000 {
- compatible = "fsl,sec-v6.0";
- fsl,sec-era = <6>;
- #address-cells = <1>;
- #size-cells = <1>;
- reg = <0xa0000 0x20000>;
- ranges = <0 0xa0000 0x20000>;
- };
-
-=====================================================================
-Job Ring (JR) Node
-
- Child of the crypto node defines data processing interface to SEC 6
- across the peripheral bus for purposes of processing
- cryptographic descriptors. The specified address
- range can be made visible to one (or more) cores.
- The interrupt defined for this node is controlled within
- the address range of this node.
-
- - compatible
- Usage: required
- Value type: <string>
- Definition: Must include "fsl,sec-v6.0-job-ring".
-
- - reg
- Usage: required
- Value type: <prop-encoded-array>
- Definition: Specifies a two JR parameters: an offset from
- the parent physical address and the length the JR registers.
-
- - interrupts
- Usage: required
- Value type: <prop_encoded-array>
- Definition: Specifies the interrupts generated by this
- device. The value of the interrupts property
- consists of one interrupt specifier. The format
- of the specifier is defined by the binding document
- describing the node's interrupt parent.
-
-EXAMPLE
- jr@1000 {
- compatible = "fsl,sec-v6.0-job-ring";
- reg = <0x1000 0x1000>;
- interrupts = <49 2 0 0>;
- };
-
-===================================================================
-Full Example
-
-Since some chips may contain more than one SEC, the dtsi contains
-only the node contents, not the node itself. A chip using the SEC
-should include the dtsi inside each SEC node. Example:
-
-In qoriq-sec6.0.dtsi:
-
- compatible = "fsl,sec-v6.0";
- fsl,sec-era = <6>;
- #address-cells = <1>;
- #size-cells = <1>;
-
- jr@1000 {
- compatible = "fsl,sec-v6.0-job-ring",
- "fsl,sec-v5.2-job-ring",
- "fsl,sec-v5.0-job-ring",
- "fsl,sec-v4.4-job-ring",
- "fsl,sec-v4.0-job-ring";
- reg = <0x1000 0x1000>;
- };
-
- jr@2000 {
- compatible = "fsl,sec-v6.0-job-ring",
- "fsl,sec-v5.2-job-ring",
- "fsl,sec-v5.0-job-ring",
- "fsl,sec-v4.4-job-ring",
- "fsl,sec-v4.0-job-ring";
- reg = <0x2000 0x1000>;
- };
-
-In the C293 device tree, we add the include of public property:
-
- crypto@a0000 {
- /include/ "qoriq-sec6.0.dtsi"
- }
-
- crypto@a0000 {
- reg = <0xa0000 0x20000>;
- ranges = <0 0xa0000 0x20000>;
-
- jr@1000 {
- interrupts = <49 2 0 0>;
- };
-
- jr@2000 {
- interrupts = <50 2 0 0>;
- };
- };
diff --git a/Documentation/devicetree/bindings/crypto/hisilicon,hip06-sec.yaml b/Documentation/devicetree/bindings/crypto/hisilicon,hip06-sec.yaml
new file mode 100644
index 000000000000..2bfac9d1c020
--- /dev/null
+++ b/Documentation/devicetree/bindings/crypto/hisilicon,hip06-sec.yaml
@@ -0,0 +1,134 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/crypto/hisilicon,hip06-sec.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Hisilicon hip06/hip07 Security Accelerator
+
+maintainers:
+ - Jonathan Cameron <Jonathan.Cameron@huawei.com>
+
+properties:
+ compatible:
+ enum:
+ - hisilicon,hip06-sec
+ - hisilicon,hip07-sec
+
+ reg:
+ items:
+ - description: Registers for backend processing engines
+ - description: Registers for common functionality
+ - description: Registers for queue 0
+ - description: Registers for queue 1
+ - description: Registers for queue 2
+ - description: Registers for queue 3
+ - description: Registers for queue 4
+ - description: Registers for queue 5
+ - description: Registers for queue 6
+ - description: Registers for queue 7
+ - description: Registers for queue 8
+ - description: Registers for queue 9
+ - description: Registers for queue 10
+ - description: Registers for queue 11
+ - description: Registers for queue 12
+ - description: Registers for queue 13
+ - description: Registers for queue 14
+ - description: Registers for queue 15
+
+ interrupts:
+ items:
+ - description: SEC unit error queue interrupt
+ - description: Completion interrupt for queue 0
+ - description: Error interrupt for queue 0
+ - description: Completion interrupt for queue 1
+ - description: Error interrupt for queue 1
+ - description: Completion interrupt for queue 2
+ - description: Error interrupt for queue 2
+ - description: Completion interrupt for queue 3
+ - description: Error interrupt for queue 3
+ - description: Completion interrupt for queue 4
+ - description: Error interrupt for queue 4
+ - description: Completion interrupt for queue 5
+ - description: Error interrupt for queue 5
+ - description: Completion interrupt for queue 6
+ - description: Error interrupt for queue 6
+ - description: Completion interrupt for queue 7
+ - description: Error interrupt for queue 7
+ - description: Completion interrupt for queue 8
+ - description: Error interrupt for queue 8
+ - description: Completion interrupt for queue 9
+ - description: Error interrupt for queue 9
+ - description: Completion interrupt for queue 10
+ - description: Error interrupt for queue 10
+ - description: Completion interrupt for queue 11
+ - description: Error interrupt for queue 11
+ - description: Completion interrupt for queue 12
+ - description: Error interrupt for queue 12
+ - description: Completion interrupt for queue 13
+ - description: Error interrupt for queue 13
+ - description: Completion interrupt for queue 14
+ - description: Error interrupt for queue 14
+ - description: Completion interrupt for queue 15
+ - description: Error interrupt for queue 15
+
+ dma-coherent: true
+
+ iommus:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - dma-coherent
+
+additionalProperties: false
+
+examples:
+ - |
+ bus {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ crypto@400d2000000 {
+ compatible = "hisilicon,hip07-sec";
+ reg = <0x400 0xd0000000 0x0 0x10000
+ 0x400 0xd2000000 0x0 0x10000
+ 0x400 0xd2010000 0x0 0x10000
+ 0x400 0xd2020000 0x0 0x10000
+ 0x400 0xd2030000 0x0 0x10000
+ 0x400 0xd2040000 0x0 0x10000
+ 0x400 0xd2050000 0x0 0x10000
+ 0x400 0xd2060000 0x0 0x10000
+ 0x400 0xd2070000 0x0 0x10000
+ 0x400 0xd2080000 0x0 0x10000
+ 0x400 0xd2090000 0x0 0x10000
+ 0x400 0xd20a0000 0x0 0x10000
+ 0x400 0xd20b0000 0x0 0x10000
+ 0x400 0xd20c0000 0x0 0x10000
+ 0x400 0xd20d0000 0x0 0x10000
+ 0x400 0xd20e0000 0x0 0x10000
+ 0x400 0xd20f0000 0x0 0x10000
+ 0x400 0xd2100000 0x0 0x10000>;
+ interrupts = <576 4>,
+ <577 1>, <578 4>,
+ <579 1>, <580 4>,
+ <581 1>, <582 4>,
+ <583 1>, <584 4>,
+ <585 1>, <586 4>,
+ <587 1>, <588 4>,
+ <589 1>, <590 4>,
+ <591 1>, <592 4>,
+ <593 1>, <594 4>,
+ <595 1>, <596 4>,
+ <597 1>, <598 4>,
+ <599 1>, <600 4>,
+ <601 1>, <602 4>,
+ <603 1>, <604 4>,
+ <605 1>, <606 4>,
+ <607 1>, <608 4>;
+ dma-coherent;
+ iommus = <&p1_smmu_alg_a 0x600>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/crypto/hisilicon,hip07-sec.txt b/Documentation/devicetree/bindings/crypto/hisilicon,hip07-sec.txt
deleted file mode 100644
index d28fd1af01b4..000000000000
--- a/Documentation/devicetree/bindings/crypto/hisilicon,hip07-sec.txt
+++ /dev/null
@@ -1,67 +0,0 @@
-* Hisilicon hip07 Security Accelerator (SEC)
-
-Required properties:
-- compatible: Must contain one of
- - "hisilicon,hip06-sec"
- - "hisilicon,hip07-sec"
-- reg: Memory addresses and lengths of the memory regions through which
- this device is controlled.
- Region 0 has registers to control the backend processing engines.
- Region 1 has registers for functionality common to all queues.
- Regions 2-18 have registers for the 16 individual queues which are isolated
- both in hardware and within the driver.
-- interrupts: Interrupt specifiers.
- Refer to interrupt-controller/interrupts.txt for generic interrupt client node
- bindings.
- Interrupt 0 is for the SEC unit error queue.
- Interrupt 2N + 1 is the completion interrupt for queue N.
- Interrupt 2N + 2 is the error interrupt for queue N.
-- dma-coherent: The driver assumes coherent dma is possible.
-
-Optional properties:
-- iommus: The SEC units are behind smmu-v3 iommus.
- Refer to iommu/arm,smmu-v3.txt for more information.
-
-Example:
-
-p1_sec_a: crypto@400d2000000 {
- compatible = "hisilicon,hip07-sec";
- reg = <0x400 0xd0000000 0x0 0x10000
- 0x400 0xd2000000 0x0 0x10000
- 0x400 0xd2010000 0x0 0x10000
- 0x400 0xd2020000 0x0 0x10000
- 0x400 0xd2030000 0x0 0x10000
- 0x400 0xd2040000 0x0 0x10000
- 0x400 0xd2050000 0x0 0x10000
- 0x400 0xd2060000 0x0 0x10000
- 0x400 0xd2070000 0x0 0x10000
- 0x400 0xd2080000 0x0 0x10000
- 0x400 0xd2090000 0x0 0x10000
- 0x400 0xd20a0000 0x0 0x10000
- 0x400 0xd20b0000 0x0 0x10000
- 0x400 0xd20c0000 0x0 0x10000
- 0x400 0xd20d0000 0x0 0x10000
- 0x400 0xd20e0000 0x0 0x10000
- 0x400 0xd20f0000 0x0 0x10000
- 0x400 0xd2100000 0x0 0x10000>;
- interrupt-parent = <&p1_mbigen_sec_a>;
- iommus = <&p1_smmu_alg_a 0x600>;
- dma-coherent;
- interrupts = <576 4>,
- <577 1>, <578 4>,
- <579 1>, <580 4>,
- <581 1>, <582 4>,
- <583 1>, <584 4>,
- <585 1>, <586 4>,
- <587 1>, <588 4>,
- <589 1>, <590 4>,
- <591 1>, <592 4>,
- <593 1>, <594 4>,
- <595 1>, <596 4>,
- <597 1>, <598 4>,
- <599 1>, <600 4>,
- <601 1>, <602 4>,
- <603 1>, <604 4>,
- <605 1>, <606 4>,
- <607 1>, <608 4>;
-};
diff --git a/Documentation/devicetree/bindings/crypto/img,hash-accelerator.yaml b/Documentation/devicetree/bindings/crypto/img,hash-accelerator.yaml
new file mode 100644
index 000000000000..46617561ef94
--- /dev/null
+++ b/Documentation/devicetree/bindings/crypto/img,hash-accelerator.yaml
@@ -0,0 +1,69 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/img,hash-accelerator.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Imagination Technologies hardware hash accelerator
+
+maintainers:
+ - James Hartley <james.hartley@imgtec.com>
+
+description:
+ The hash accelerator provides hardware hashing acceleration for
+ SHA1, SHA224, SHA256 and MD5 hashes.
+
+properties:
+ compatible:
+ const: img,hash-accelerator
+
+ reg:
+ items:
+ - description: Register base address and size
+ - description: DMA port specifier
+
+ interrupts:
+ maxItems: 1
+
+ dmas:
+ maxItems: 1
+
+ dma-names:
+ items:
+ - const: tx
+
+ clocks:
+ items:
+ - description: System clock for hash block registers
+ - description: Hash clock for data path
+
+ clock-names:
+ items:
+ - const: sys
+ - const: hash
+
+additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - dmas
+ - dma-names
+ - clocks
+ - clock-names
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/mips-gic.h>
+ #include <dt-bindings/clock/pistachio-clk.h>
+
+ hash@18149600 {
+ compatible = "img,hash-accelerator";
+ reg = <0x18149600 0x100>, <0x18101100 0x4>;
+ interrupts = <GIC_SHARED 59 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&dma 8 0xffffffff 0>;
+ dma-names = "tx";
+ clocks = <&cr_periph SYS_CLK_HASH>, <&clk_periph PERIPH_CLK_ROM>;
+ clock-names = "sys", "hash";
+ };
diff --git a/Documentation/devicetree/bindings/crypto/img-hash.txt b/Documentation/devicetree/bindings/crypto/img-hash.txt
deleted file mode 100644
index 91a3d757d641..000000000000
--- a/Documentation/devicetree/bindings/crypto/img-hash.txt
+++ /dev/null
@@ -1,27 +0,0 @@
-Imagination Technologies hardware hash accelerator
-
-The hash accelerator provides hardware hashing acceleration for
-SHA1, SHA224, SHA256 and MD5 hashes
-
-Required properties:
-
-- compatible : "img,hash-accelerator"
-- reg : Offset and length of the register set for the module, and the DMA port
-- interrupts : The designated IRQ line for the hashing module.
-- dmas : DMA specifier as per Documentation/devicetree/bindings/dma/dma.txt
-- dma-names : Should be "tx"
-- clocks : Clock specifiers
-- clock-names : "sys" Used to clock the hash block registers
- "hash" Used to clock data through the accelerator
-
-Example:
-
- hash: hash@18149600 {
- compatible = "img,hash-accelerator";
- reg = <0x18149600 0x100>, <0x18101100 0x4>;
- interrupts = <GIC_SHARED 59 IRQ_TYPE_LEVEL_HIGH>;
- dmas = <&dma 8 0xffffffff 0>;
- dma-names = "tx";
- clocks = <&cr_periph SYS_CLK_HASH>, <&clk_periph PERIPH_CLK_ROM>;
- clock-names = "sys", "hash";
- };
diff --git a/Documentation/devicetree/bindings/crypto/inside-secure,safexcel-eip93.yaml b/Documentation/devicetree/bindings/crypto/inside-secure,safexcel-eip93.yaml
new file mode 100644
index 000000000000..997bf9717f9e
--- /dev/null
+++ b/Documentation/devicetree/bindings/crypto/inside-secure,safexcel-eip93.yaml
@@ -0,0 +1,67 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/crypto/inside-secure,safexcel-eip93.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Inside Secure SafeXcel EIP-93 cryptographic engine
+
+maintainers:
+ - Christian Marangi <ansuelsmth@gmail.com>
+
+description: |
+ The Inside Secure SafeXcel EIP-93 is a cryptographic engine IP block
+ integrated in varios devices with very different and generic name from
+ PKTE to simply vendor+EIP93. The real IP under the hood is actually
+ developed by Inside Secure and given to license to vendors.
+
+ The IP block is sold with different model based on what feature are
+ needed and are identified with the final letter. Each letter correspond
+ to a specific set of feature and multiple letter reflect the sum of the
+ feature set.
+
+ EIP-93 models:
+ - EIP-93i: (basic) DES/Triple DES, AES, PRNG, IPsec ESP, SRTP, SHA1
+ - EIP-93ie: i + SHA224/256, AES-192/256
+ - EIP-93is: i + SSL/DTLS/DTLS, MD5, ARC4
+ - EIP-93ies: i + e + s
+ - EIP-93iw: i + AES-XCB-MAC, AES-CCM
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - const: airoha,en7581-eip93
+ - const: inside-secure,safexcel-eip93ies
+ - items:
+ - not: {}
+ description: Need a SoC specific compatible
+ - enum:
+ - inside-secure,safexcel-eip93i
+ - inside-secure,safexcel-eip93ie
+ - inside-secure,safexcel-eip93is
+ - inside-secure,safexcel-eip93iw
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ crypto@1e004000 {
+ compatible = "airoha,en7581-eip93", "inside-secure,safexcel-eip93ies";
+ reg = <0x1fb70000 0x1000>;
+
+ interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>;
+ };
diff --git a/Documentation/devicetree/bindings/crypto/inside-secure,safexcel.yaml b/Documentation/devicetree/bindings/crypto/inside-secure,safexcel.yaml
new file mode 100644
index 000000000000..343e2d04c797
--- /dev/null
+++ b/Documentation/devicetree/bindings/crypto/inside-secure,safexcel.yaml
@@ -0,0 +1,88 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/crypto/inside-secure,safexcel.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Inside Secure SafeXcel cryptographic engine
+
+maintainers:
+ - Antoine Tenart <atenart@kernel.org>
+
+properties:
+ compatible:
+ oneOf:
+ - const: inside-secure,safexcel-eip197b
+ - const: inside-secure,safexcel-eip197d
+ - const: inside-secure,safexcel-eip97ies
+ - const: inside-secure,safexcel-eip197
+ description: Equivalent of inside-secure,safexcel-eip197b
+ deprecated: true
+ - const: inside-secure,safexcel-eip97
+ description: Equivalent of inside-secure,safexcel-eip97ies
+ deprecated: true
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 6
+
+ interrupt-names:
+ items:
+ - const: ring0
+ - const: ring1
+ - const: ring2
+ - const: ring3
+ - const: eip
+ - const: mem
+
+ clocks:
+ minItems: 1
+ maxItems: 2
+
+ clock-names:
+ minItems: 1
+ items:
+ - const: core
+ - const: reg
+
+ dma-coherent: true
+
+required:
+ - reg
+ - interrupts
+ - interrupt-names
+
+allOf:
+ - if:
+ properties:
+ clocks:
+ minItems: 2
+ then:
+ properties:
+ clock-names:
+ minItems: 2
+ required:
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ crypto@800000 {
+ compatible = "inside-secure,safexcel-eip197b";
+ reg = <0x800000 0x200000>;
+ interrupts = <GIC_SPI 54 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 58 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "ring0", "ring1", "ring2", "ring3", "eip", "mem";
+ clocks = <&cpm_syscon0 1 26>;
+ clock-names = "core";
+ };
diff --git a/Documentation/devicetree/bindings/crypto/inside-secure-safexcel.txt b/Documentation/devicetree/bindings/crypto/inside-secure-safexcel.txt
deleted file mode 100644
index 3bbf144c9988..000000000000
--- a/Documentation/devicetree/bindings/crypto/inside-secure-safexcel.txt
+++ /dev/null
@@ -1,40 +0,0 @@
-Inside Secure SafeXcel cryptographic engine
-
-Required properties:
-- compatible: Should be "inside-secure,safexcel-eip197b",
- "inside-secure,safexcel-eip197d" or
- "inside-secure,safexcel-eip97ies".
-- reg: Base physical address of the engine and length of memory mapped region.
-- interrupts: Interrupt numbers for the rings and engine.
-- interrupt-names: Should be "ring0", "ring1", "ring2", "ring3", "eip", "mem".
-
-Optional properties:
-- clocks: Reference to the crypto engine clocks, the second clock is
- needed for the Armada 7K/8K SoCs.
-- clock-names: mandatory if there is a second clock, in this case the
- name must be "core" for the first clock and "reg" for
- the second one.
-
-Backward compatibility:
-Two compatibles are kept for backward compatibility, but shouldn't be used for
-new submissions:
-- "inside-secure,safexcel-eip197" is equivalent to
- "inside-secure,safexcel-eip197b".
-- "inside-secure,safexcel-eip97" is equivalent to
- "inside-secure,safexcel-eip97ies".
-
-Example:
-
- crypto: crypto@800000 {
- compatible = "inside-secure,safexcel-eip197b";
- reg = <0x800000 0x200000>;
- interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 54 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 58 IRQ_TYPE_LEVEL_HIGH>;
- interrupt-names = "mem", "ring0", "ring1", "ring2", "ring3",
- "eip";
- clocks = <&cpm_syscon0 1 26>;
- };
diff --git a/Documentation/devicetree/bindings/crypto/intel,ixp4xx-crypto.yaml b/Documentation/devicetree/bindings/crypto/intel,ixp4xx-crypto.yaml
index e0fe63957888..a4006237aa89 100644
--- a/Documentation/devicetree/bindings/crypto/intel,ixp4xx-crypto.yaml
+++ b/Documentation/devicetree/bindings/crypto/intel,ixp4xx-crypto.yaml
@@ -2,8 +2,8 @@
# Copyright 2018 Linaro Ltd.
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/crypto/intel,ixp4xx-crypto.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/crypto/intel,ixp4xx-crypto.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Intel IXP4xx cryptographic engine
@@ -21,7 +21,7 @@ properties:
const: intel,ixp4xx-crypto
intel,npe-handle:
- $ref: '/schemas/types.yaml#/definitions/phandle-array'
+ $ref: /schemas/types.yaml#/definitions/phandle-array
items:
- items:
- description: phandle to the NPE this crypto engine
diff --git a/Documentation/devicetree/bindings/crypto/marvell,orion-crypto.yaml b/Documentation/devicetree/bindings/crypto/marvell,orion-crypto.yaml
new file mode 100644
index 000000000000..b44d36c50ec4
--- /dev/null
+++ b/Documentation/devicetree/bindings/crypto/marvell,orion-crypto.yaml
@@ -0,0 +1,133 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/crypto/marvell,orion-crypto.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Marvell Cryptographic Engines And Security Accelerator
+
+maintainers:
+ - Andrew Lunn <andrew@lunn.ch>
+ - Boris Brezillon <bbrezillon@kernel.org>
+
+description: |
+ Marvell Cryptographic Engines And Security Accelerator
+
+properties:
+ compatible:
+ enum:
+ - marvell,armada-370-crypto
+ - marvell,armada-xp-crypto
+ - marvell,armada-375-crypto
+ - marvell,armada-38x-crypto
+ - marvell,dove-crypto
+ - marvell,kirkwood-crypto
+ - marvell,orion-crypto
+
+ reg:
+ minItems: 1
+ items:
+ - description: Registers region
+ - description: SRAM region
+ deprecated: true
+
+ reg-names:
+ minItems: 1
+ items:
+ - const: regs
+ - const: sram
+ deprecated: true
+
+ interrupts:
+ description: One interrupt for each CESA engine
+ minItems: 1
+ maxItems: 2
+
+ clocks:
+ description: One or two clocks for each CESA engine
+ minItems: 1
+ maxItems: 4
+
+ clock-names:
+ minItems: 1
+ items:
+ - const: cesa0
+ - const: cesa1
+ - const: cesaz0
+ - const: cesaz1
+
+ marvell,crypto-srams:
+ description: Phandle(s) to crypto SRAM.
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ minItems: 1
+ maxItems: 2
+ items:
+ maxItems: 1
+
+ marvell,crypto-sram-size:
+ description: SRAM size reserved for crypto operations.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ default: 0x800
+
+required:
+ - compatible
+ - reg
+ - reg-names
+ - interrupts
+ - marvell,crypto-srams
+
+allOf:
+ - if:
+ not:
+ properties:
+ compatible:
+ enum:
+ - marvell,kirkwood-crypto
+ - marvell,orion-crypto
+ then:
+ required:
+ - clocks
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - marvell,armada-370-crypto
+ - marvell,armada-375-crypto
+ - marvell,armada-38x-crypto
+ - marvell,armada-xp-crypto
+ then:
+ required:
+ - clock-names
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - marvell,armada-375-crypto
+ - marvell,armada-38x-crypto
+ then:
+ properties:
+ clocks:
+ minItems: 4
+ clock-names:
+ minItems: 4
+ else:
+ properties:
+ clocks:
+ maxItems: 2
+ clock-names:
+ maxItems: 2
+
+additionalProperties: false
+
+examples:
+ - |
+ crypto@30000 {
+ compatible = "marvell,orion-crypto";
+ reg = <0x30000 0x10000>;
+ reg-names = "regs";
+ interrupts = <22>;
+ marvell,crypto-srams = <&crypto_sram>;
+ marvell,crypto-sram-size = <0x600>;
+ };
diff --git a/Documentation/devicetree/bindings/crypto/marvell-cesa.txt b/Documentation/devicetree/bindings/crypto/marvell-cesa.txt
deleted file mode 100644
index 28d3f2496b89..000000000000
--- a/Documentation/devicetree/bindings/crypto/marvell-cesa.txt
+++ /dev/null
@@ -1,44 +0,0 @@
-Marvell Cryptographic Engines And Security Accelerator
-
-Required properties:
-- compatible: should be one of the following string
- "marvell,orion-crypto"
- "marvell,kirkwood-crypto"
- "marvell,dove-crypto"
- "marvell,armada-370-crypto"
- "marvell,armada-xp-crypto"
- "marvell,armada-375-crypto"
- "marvell,armada-38x-crypto"
-- reg: base physical address of the engine and length of memory mapped
- region. Can also contain an entry for the SRAM attached to the CESA,
- but this representation is deprecated and marvell,crypto-srams should
- be used instead
-- reg-names: "regs". Can contain an "sram" entry, but this representation
- is deprecated and marvell,crypto-srams should be used instead
-- interrupts: interrupt number
-- clocks: reference to the crypto engines clocks. This property is not
- required for orion and kirkwood platforms
-- clock-names: "cesaX" and "cesazX", X should be replaced by the crypto engine
- id.
- This property is not required for the orion and kirkwoord
- platforms.
- "cesazX" clocks are not required on armada-370 platforms
-- marvell,crypto-srams: phandle to crypto SRAM definitions
-
-Optional properties:
-- marvell,crypto-sram-size: SRAM size reserved for crypto operations, if not
- specified the whole SRAM is used (2KB)
-
-
-Examples:
-
- crypto@90000 {
- compatible = "marvell,armada-xp-crypto";
- reg = <0x90000 0x10000>;
- reg-names = "regs";
- interrupts = <48>, <49>;
- clocks = <&gateclk 23>, <&gateclk 23>;
- clock-names = "cesa0", "cesa1";
- marvell,crypto-srams = <&crypto_sram0>, <&crypto_sram1>;
- marvell,crypto-sram-size = <0x600>;
- };
diff --git a/Documentation/devicetree/bindings/crypto/mediatek-crypto.txt b/Documentation/devicetree/bindings/crypto/mediatek-crypto.txt
deleted file mode 100644
index 450da3661cad..000000000000
--- a/Documentation/devicetree/bindings/crypto/mediatek-crypto.txt
+++ /dev/null
@@ -1,25 +0,0 @@
-MediaTek cryptographic accelerators
-
-Required properties:
-- compatible: Should be "mediatek,eip97-crypto"
-- reg: Address and length of the register set for the device
-- interrupts: Should contain the five crypto engines interrupts in numeric
- order. These are global system and four descriptor rings.
-- clocks: the clock used by the core
-- clock-names: Must contain "cryp".
-- power-domains: Must contain a reference to the PM domain.
-
-
-Example:
- crypto: crypto@1b240000 {
- compatible = "mediatek,eip97-crypto";
- reg = <0 0x1b240000 0 0x20000>;
- interrupts = <GIC_SPI 82 IRQ_TYPE_LEVEL_LOW>,
- <GIC_SPI 83 IRQ_TYPE_LEVEL_LOW>,
- <GIC_SPI 84 IRQ_TYPE_LEVEL_LOW>,
- <GIC_SPI 91 IRQ_TYPE_LEVEL_LOW>,
- <GIC_SPI 97 IRQ_TYPE_LEVEL_LOW>;
- clocks = <&ethsys CLK_ETHSYS_CRYPTO>;
- clock-names = "cryp";
- power-domains = <&scpsys MT2701_POWER_DOMAIN_ETH>;
- };
diff --git a/Documentation/devicetree/bindings/crypto/mv_cesa.txt b/Documentation/devicetree/bindings/crypto/mv_cesa.txt
deleted file mode 100644
index d9b92e2f3138..000000000000
--- a/Documentation/devicetree/bindings/crypto/mv_cesa.txt
+++ /dev/null
@@ -1,32 +0,0 @@
-Marvell Cryptographic Engines And Security Accelerator
-
-Required properties:
-- compatible: should be one of the following string
- "marvell,orion-crypto"
- "marvell,kirkwood-crypto"
- "marvell,dove-crypto"
-- reg: base physical address of the engine and length of memory mapped
- region. Can also contain an entry for the SRAM attached to the CESA,
- but this representation is deprecated and marvell,crypto-srams should
- be used instead
-- reg-names: "regs". Can contain an "sram" entry, but this representation
- is deprecated and marvell,crypto-srams should be used instead
-- interrupts: interrupt number
-- clocks: reference to the crypto engines clocks. This property is only
- required for Dove platforms
-- marvell,crypto-srams: phandle to crypto SRAM definitions
-
-Optional properties:
-- marvell,crypto-sram-size: SRAM size reserved for crypto operations, if not
- specified the whole SRAM is used (2KB)
-
-Examples:
-
- crypto@30000 {
- compatible = "marvell,orion-crypto";
- reg = <0x30000 0x10000>;
- reg-names = "regs";
- interrupts = <22>;
- marvell,crypto-srams = <&crypto_sram>;
- marvell,crypto-sram-size = <0x600>;
- };
diff --git a/Documentation/devicetree/bindings/crypto/nvidia,tegra234-se-aes.yaml b/Documentation/devicetree/bindings/crypto/nvidia,tegra234-se-aes.yaml
new file mode 100644
index 000000000000..cb47ae2889b6
--- /dev/null
+++ b/Documentation/devicetree/bindings/crypto/nvidia,tegra234-se-aes.yaml
@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/crypto/nvidia,tegra234-se-aes.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NVIDIA Tegra Security Engine for AES algorithms
+
+description:
+ The Tegra Security Engine accelerates the following AES encryption/decryption
+ algorithms - AES-ECB, AES-CBC, AES-OFB, AES-XTS, AES-CTR, AES-GCM, AES-CCM,
+ AES-CMAC
+
+maintainers:
+ - Akhil R <akhilrajeev@nvidia.com>
+
+properties:
+ compatible:
+ const: nvidia,tegra234-se-aes
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ iommus:
+ maxItems: 1
+
+ dma-coherent: true
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - iommus
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/memory/tegra234-mc.h>
+ #include <dt-bindings/clock/tegra234-clock.h>
+
+ crypto@15820000 {
+ compatible = "nvidia,tegra234-se-aes";
+ reg = <0x15820000 0x10000>;
+ clocks = <&bpmp TEGRA234_CLK_SE>;
+ iommus = <&smmu TEGRA234_SID_SES_SE1>;
+ dma-coherent;
+ };
+...
diff --git a/Documentation/devicetree/bindings/crypto/nvidia,tegra234-se-hash.yaml b/Documentation/devicetree/bindings/crypto/nvidia,tegra234-se-hash.yaml
new file mode 100644
index 000000000000..f57ef10645e2
--- /dev/null
+++ b/Documentation/devicetree/bindings/crypto/nvidia,tegra234-se-hash.yaml
@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/crypto/nvidia,tegra234-se-hash.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NVIDIA Tegra Security Engine for HASH algorithms
+
+description:
+ The Tegra Security HASH Engine accelerates the following HASH functions -
+ SHA1, SHA224, SHA256, SHA384, SHA512, SHA3-224, SHA3-256, SHA3-384, SHA3-512
+ HMAC(SHA224), HMAC(SHA256), HMAC(SHA384), HMAC(SHA512)
+
+maintainers:
+ - Akhil R <akhilrajeev@nvidia.com>
+
+properties:
+ compatible:
+ const: nvidia,tegra234-se-hash
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ iommus:
+ maxItems: 1
+
+ dma-coherent: true
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - iommus
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/memory/tegra234-mc.h>
+ #include <dt-bindings/clock/tegra234-clock.h>
+
+ crypto@15840000 {
+ compatible = "nvidia,tegra234-se-hash";
+ reg = <0x15840000 0x10000>;
+ clocks = <&bpmp TEGRA234_CLK_SE>;
+ iommus = <&smmu TEGRA234_SID_SES_SE2>;
+ dma-coherent;
+ };
+...
diff --git a/Documentation/devicetree/bindings/crypto/omap-aes.txt b/Documentation/devicetree/bindings/crypto/omap-aes.txt
deleted file mode 100644
index fd9717653cbb..000000000000
--- a/Documentation/devicetree/bindings/crypto/omap-aes.txt
+++ /dev/null
@@ -1,31 +0,0 @@
-OMAP SoC AES crypto Module
-
-Required properties:
-
-- compatible : Should contain entries for this and backward compatible
- AES versions:
- - "ti,omap2-aes" for OMAP2.
- - "ti,omap3-aes" for OMAP3.
- - "ti,omap4-aes" for OMAP4 and AM33XX.
- Note that the OMAP2 and 3 versions are compatible (OMAP3 supports
- more algorithms) but they are incompatible with OMAP4.
-- ti,hwmods: Name of the hwmod associated with the AES module
-- reg : Offset and length of the register set for the module
-- interrupts : the interrupt-specifier for the AES module.
-
-Optional properties:
-- dmas: DMA specifiers for tx and rx dma. See the DMA client binding,
- Documentation/devicetree/bindings/dma/dma.txt
-- dma-names: DMA request names should include "tx" and "rx" if present.
-
-Example:
- /* AM335x */
- aes: aes@53500000 {
- compatible = "ti,omap4-aes";
- ti,hwmods = "aes";
- reg = <0x53500000 0xa0>;
- interrupts = <102>;
- dmas = <&edma 6>,
- <&edma 5>;
- dma-names = "tx", "rx";
- };
diff --git a/Documentation/devicetree/bindings/crypto/omap-des.txt b/Documentation/devicetree/bindings/crypto/omap-des.txt
deleted file mode 100644
index e8c63bf2e16d..000000000000
--- a/Documentation/devicetree/bindings/crypto/omap-des.txt
+++ /dev/null
@@ -1,30 +0,0 @@
-OMAP SoC DES crypto Module
-
-Required properties:
-
-- compatible : Should contain "ti,omap4-des"
-- ti,hwmods: Name of the hwmod associated with the DES module
-- reg : Offset and length of the register set for the module
-- interrupts : the interrupt-specifier for the DES module
-- clocks : A phandle to the functional clock node of the DES module
- corresponding to each entry in clock-names
-- clock-names : Name of the functional clock, should be "fck"
-
-Optional properties:
-- dmas: DMA specifiers for tx and rx dma. See the DMA client binding,
- Documentation/devicetree/bindings/dma/dma.txt
- Each entry corresponds to an entry in dma-names
-- dma-names: DMA request names should include "tx" and "rx" if present
-
-Example:
- /* DRA7xx SoC */
- des: des@480a5000 {
- compatible = "ti,omap4-des";
- ti,hwmods = "des";
- reg = <0x480a5000 0xa0>;
- interrupts = <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>;
- dmas = <&sdma 117>, <&sdma 116>;
- dma-names = "tx", "rx";
- clocks = <&l3_iclk_div>;
- clock-names = "fck";
- };
diff --git a/Documentation/devicetree/bindings/crypto/omap-sham.txt b/Documentation/devicetree/bindings/crypto/omap-sham.txt
deleted file mode 100644
index ad9115569611..000000000000
--- a/Documentation/devicetree/bindings/crypto/omap-sham.txt
+++ /dev/null
@@ -1,28 +0,0 @@
-OMAP SoC SHA crypto Module
-
-Required properties:
-
-- compatible : Should contain entries for this and backward compatible
- SHAM versions:
- - "ti,omap2-sham" for OMAP2 & OMAP3.
- - "ti,omap4-sham" for OMAP4 and AM33XX.
- - "ti,omap5-sham" for OMAP5, DRA7 and AM43XX.
-- ti,hwmods: Name of the hwmod associated with the SHAM module
-- reg : Offset and length of the register set for the module
-- interrupts : the interrupt-specifier for the SHAM module.
-
-Optional properties:
-- dmas: DMA specifiers for the rx dma. See the DMA client binding,
- Documentation/devicetree/bindings/dma/dma.txt
-- dma-names: DMA request name. Should be "rx" if a dma is present.
-
-Example:
- /* AM335x */
- sham: sham@53100000 {
- compatible = "ti,omap4-sham";
- ti,hwmods = "sham";
- reg = <0x53100000 0x200>;
- interrupts = <109>;
- dmas = <&edma 36>;
- dma-names = "rx";
- };
diff --git a/Documentation/devicetree/bindings/crypto/qcom,inline-crypto-engine.yaml b/Documentation/devicetree/bindings/crypto/qcom,inline-crypto-engine.yaml
index 92e1d76e29ee..c3408dcf5d20 100644
--- a/Documentation/devicetree/bindings/crypto/qcom,inline-crypto-engine.yaml
+++ b/Documentation/devicetree/bindings/crypto/qcom,inline-crypto-engine.yaml
@@ -13,7 +13,15 @@ properties:
compatible:
items:
- enum:
+ - qcom,kaanapali-inline-crypto-engine
+ - qcom,qcs8300-inline-crypto-engine
+ - qcom,sa8775p-inline-crypto-engine
+ - qcom,sc7180-inline-crypto-engine
+ - qcom,sc7280-inline-crypto-engine
+ - qcom,sm8450-inline-crypto-engine
- qcom,sm8550-inline-crypto-engine
+ - qcom,sm8650-inline-crypto-engine
+ - qcom,sm8750-inline-crypto-engine
- const: qcom,inline-crypto-engine
reg:
diff --git a/Documentation/devicetree/bindings/crypto/qcom,prng.yaml b/Documentation/devicetree/bindings/crypto/qcom,prng.yaml
index bb42f4588b40..597441d94cf1 100644
--- a/Documentation/devicetree/bindings/crypto/qcom,prng.yaml
+++ b/Documentation/devicetree/bindings/crypto/qcom,prng.yaml
@@ -11,9 +11,26 @@ maintainers:
properties:
compatible:
- enum:
- - qcom,prng # 8916 etc.
- - qcom,prng-ee # 8996 and later using EE
+ oneOf:
+ - enum:
+ - qcom,prng # 8916 etc.
+ - qcom,prng-ee # 8996 and later using EE
+ - items:
+ - enum:
+ - qcom,ipq5332-trng
+ - qcom,ipq5424-trng
+ - qcom,ipq9574-trng
+ - qcom,kaanapali-trng
+ - qcom,qcs615-trng
+ - qcom,qcs8300-trng
+ - qcom,sa8255p-trng
+ - qcom,sa8775p-trng
+ - qcom,sc7280-trng
+ - qcom,sm8450-trng
+ - qcom,sm8550-trng
+ - qcom,sm8650-trng
+ - qcom,sm8750-trng
+ - const: qcom,trng
reg:
maxItems: 1
@@ -28,8 +45,18 @@ properties:
required:
- compatible
- reg
- - clocks
- - clock-names
+
+allOf:
+ - if:
+ not:
+ properties:
+ compatible:
+ contains:
+ const: qcom,trng
+ then:
+ required:
+ - clocks
+ - clock-names
additionalProperties: false
diff --git a/Documentation/devicetree/bindings/crypto/qcom-qce.yaml b/Documentation/devicetree/bindings/crypto/qcom-qce.yaml
index e375bd981300..79d5be2548bc 100644
--- a/Documentation/devicetree/bindings/crypto/qcom-qce.yaml
+++ b/Documentation/devicetree/bindings/crypto/qcom-qce.yaml
@@ -7,7 +7,8 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Qualcomm crypto engine driver
maintainers:
- - Bhupesh Sharma <bhupesh.sharma@linaro.org>
+ - Bjorn Andersson <andersson@kernel.org>
+ - Konrad Dybcio <konradybcio@kernel.org>
description:
This document defines the binding for the QCE crypto
@@ -26,19 +27,37 @@ properties:
- items:
- enum:
+ - qcom,ipq4019-qce
+ - qcom,sm8150-qce
+ - const: qcom,qce
+
+ - items:
+ - enum:
- qcom,ipq6018-qce
- qcom,ipq8074-qce
+ - qcom,ipq9574-qce
- qcom,msm8996-qce
+ - qcom,qcm2290-qce
- qcom,sdm845-qce
+ - qcom,sm6115-qce
- const: qcom,ipq4019-qce
- const: qcom,qce
- items:
- enum:
+ - qcom,kaanapali-qce
+ - qcom,qcs615-qce
+ - qcom,qcs8300-qce
+ - qcom,sa8775p-qce
+ - qcom,sc7280-qce
+ - qcom,sm6350-qce
- qcom,sm8250-qce
- qcom,sm8350-qce
- qcom,sm8450-qce
- qcom,sm8550-qce
+ - qcom,sm8650-qce
+ - qcom,sm8750-qce
+ - qcom,x1e80100-qce
- const: qcom,sm8150-qce
- const: qcom,qce
@@ -46,16 +65,12 @@ properties:
maxItems: 1
clocks:
- items:
- - description: iface clocks register interface.
- - description: bus clocks data transfer interface.
- - description: core clocks rest of the crypto block.
+ minItems: 1
+ maxItems: 3
clock-names:
- items:
- - const: iface
- - const: bus
- - const: core
+ minItems: 1
+ maxItems: 3
iommus:
minItems: 1
@@ -89,13 +104,53 @@ allOf:
enum:
- qcom,crypto-v5.1
- qcom,crypto-v5.4
- - qcom,ipq4019-qce
+ - qcom,ipq6018-qce
+ - qcom,ipq8074-qce
+ - qcom,ipq9574-qce
+ - qcom,msm8996-qce
+ - qcom,sdm845-qce
+ then:
+ properties:
+ clocks:
+ maxItems: 3
+ clock-names:
+ items:
+ - const: iface
+ - const: bus
+ - const: core
+ required:
+ - clocks
+ - clock-names
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,qcm2290-qce
+ - qcom,sm6115-qce
then:
+ properties:
+ clocks:
+ maxItems: 1
+ clock-names:
+ items:
+ - const: core
required:
- clocks
- clock-names
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,sm8150-qce
+ then:
+ properties:
+ clocks: false
+ clock-names: false
+
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/crypto/st,stm32-cryp.yaml b/Documentation/devicetree/bindings/crypto/st,stm32-cryp.yaml
index 0ddeb8a9a7a0..27354658d054 100644
--- a/Documentation/devicetree/bindings/crypto/st,stm32-cryp.yaml
+++ b/Documentation/devicetree/bindings/crypto/st,stm32-cryp.yaml
@@ -46,6 +46,10 @@ properties:
power-domains:
maxItems: 1
+ access-controllers:
+ minItems: 1
+ maxItems: 2
+
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/crypto/st,stm32-hash.yaml b/Documentation/devicetree/bindings/crypto/st,stm32-hash.yaml
index b767ec72a999..822318414095 100644
--- a/Documentation/devicetree/bindings/crypto/st,stm32-hash.yaml
+++ b/Documentation/devicetree/bindings/crypto/st,stm32-hash.yaml
@@ -20,6 +20,7 @@ properties:
- stericsson,ux500-hash
- st,stm32f456-hash
- st,stm32f756-hash
+ - st,stm32mp13-hash
reg:
maxItems: 1
@@ -50,6 +51,10 @@ properties:
power-domains:
maxItems: 1
+ access-controllers:
+ minItems: 1
+ maxItems: 2
+
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/crypto/starfive,jh7110-crypto.yaml b/Documentation/devicetree/bindings/crypto/starfive,jh7110-crypto.yaml
new file mode 100644
index 000000000000..7ccb6e1641d0
--- /dev/null
+++ b/Documentation/devicetree/bindings/crypto/starfive,jh7110-crypto.yaml
@@ -0,0 +1,96 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/crypto/starfive,jh7110-crypto.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: StarFive Cryptographic Module
+
+maintainers:
+ - Jia Jie Ho <jiajie.ho@starfivetech.com>
+ - William Qiu <william.qiu@starfivetech.com>
+
+properties:
+ compatible:
+ enum:
+ - starfive,jh7110-crypto
+ - starfive,jh8100-crypto
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: Hardware reference clock
+ - description: AHB reference clock
+
+ clock-names:
+ items:
+ - const: hclk
+ - const: ahb
+
+ interrupts:
+ minItems: 1
+ items:
+ - description: SHA2 module irq
+ - description: SM3 module irq
+
+ resets:
+ maxItems: 1
+
+ dmas:
+ items:
+ - description: TX DMA channel
+ - description: RX DMA channel
+
+ dma-names:
+ items:
+ - const: tx
+ - const: rx
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - resets
+ - dmas
+ - dma-names
+
+additionalProperties: false
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ const: starfive,jh7110-crypto
+
+ then:
+ properties:
+ interrupts:
+ maxItems: 1
+
+ - if:
+ properties:
+ compatible:
+ const: starfive,jh8100-crypto
+
+ then:
+ properties:
+ interrupts:
+ minItems: 2
+
+examples:
+ - |
+ crypto: crypto@16000000 {
+ compatible = "starfive,jh7110-crypto";
+ reg = <0x16000000 0x4000>;
+ clocks = <&clk 15>, <&clk 16>;
+ clock-names = "hclk", "ahb";
+ interrupts = <28>;
+ resets = <&reset 3>;
+ dmas = <&dma 1 2>,
+ <&dma 0 2>;
+ dma-names = "tx", "rx";
+ };
+...
diff --git a/Documentation/devicetree/bindings/crypto/ti,am62l-dthev2.yaml b/Documentation/devicetree/bindings/crypto/ti,am62l-dthev2.yaml
new file mode 100644
index 000000000000..5486bfeb2fe8
--- /dev/null
+++ b/Documentation/devicetree/bindings/crypto/ti,am62l-dthev2.yaml
@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/crypto/ti,am62l-dthev2.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: K3 SoC DTHE V2 crypto module
+
+maintainers:
+ - T Pratham <t-pratham@ti.com>
+
+properties:
+ compatible:
+ enum:
+ - ti,am62l-dthev2
+
+ reg:
+ maxItems: 1
+
+ dmas:
+ items:
+ - description: AES Engine RX DMA Channel
+ - description: AES Engine TX DMA Channel
+ - description: SHA Engine TX DMA Channel
+
+ dma-names:
+ items:
+ - const: rx
+ - const: tx1
+ - const: tx2
+
+required:
+ - compatible
+ - reg
+ - dmas
+ - dma-names
+
+additionalProperties: false
+
+examples:
+ - |
+ crypto@40800000 {
+ compatible = "ti,am62l-dthev2";
+ reg = <0x40800000 0x10000>;
+
+ dmas = <&main_bcdma 0 0 0x4700 0>,
+ <&main_bcdma 0 0 0xc701 0>,
+ <&main_bcdma 0 0 0xc700 0>;
+ dma-names = "rx", "tx1", "tx2";
+ };
diff --git a/Documentation/devicetree/bindings/crypto/ti,omap-sham.yaml b/Documentation/devicetree/bindings/crypto/ti,omap-sham.yaml
new file mode 100644
index 000000000000..d69b50228009
--- /dev/null
+++ b/Documentation/devicetree/bindings/crypto/ti,omap-sham.yaml
@@ -0,0 +1,56 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/crypto/ti,omap-sham.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: OMAP SoC SHA crypto Module
+
+maintainers:
+ - Animesh Agarwal <animeshagarwal28@gmail.com>
+
+properties:
+ compatible:
+ enum:
+ - ti,omap2-sham
+ - ti,omap4-sham
+ - ti,omap5-sham
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ dmas:
+ maxItems: 1
+
+ dma-names:
+ const: rx
+
+ ti,hwmods:
+ description: Name of the hwmod associated with the SHAM module
+ $ref: /schemas/types.yaml#/definitions/string
+ enum: [sham]
+
+dependencies:
+ dmas: [dma-names]
+
+additionalProperties: false
+
+required:
+ - compatible
+ - ti,hwmods
+ - reg
+ - interrupts
+
+examples:
+ - |
+ sham@53100000 {
+ compatible = "ti,omap4-sham";
+ ti,hwmods = "sham";
+ reg = <0x53100000 0x200>;
+ interrupts = <109>;
+ dmas = <&edma 36>;
+ dma-names = "rx";
+ };
diff --git a/Documentation/devicetree/bindings/crypto/ti,omap2-aes.yaml b/Documentation/devicetree/bindings/crypto/ti,omap2-aes.yaml
new file mode 100644
index 000000000000..90e92050ad2e
--- /dev/null
+++ b/Documentation/devicetree/bindings/crypto/ti,omap2-aes.yaml
@@ -0,0 +1,58 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/ti,omap2-aes.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: OMAP SoC AES crypto Module
+
+maintainers:
+ - Aaro Koskinen <aaro.koskinen@iki.fi>
+ - Andreas Kemnade <andreas@kemnade.info>
+ - Kevin Hilman <khilman@baylibre.com>
+ - Roger Quadros <rogerq@kernel.org>
+ - Tony Lindgren <tony@atomide.com>
+
+properties:
+ compatible:
+ enum:
+ - ti,omap2-aes
+ - ti,omap3-aes
+ - ti,omap4-aes
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ dmas:
+ maxItems: 2
+
+ dma-names:
+ items:
+ - const: tx
+ - const: rx
+
+ ti,hwmods:
+ description: Name of the hwmod associated with the AES module
+ const: aes
+ deprecated: true
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+additionalProperties: false
+
+examples:
+ - |
+ aes@53500000 {
+ compatible = "ti,omap4-aes";
+ reg = <0x53500000 0xa0>;
+ interrupts = <102>;
+ dmas = <&edma 6>,
+ <&edma 5>;
+ dma-names = "tx", "rx";
+ };
diff --git a/Documentation/devicetree/bindings/crypto/ti,omap4-des.yaml b/Documentation/devicetree/bindings/crypto/ti,omap4-des.yaml
new file mode 100644
index 000000000000..f02f1e141218
--- /dev/null
+++ b/Documentation/devicetree/bindings/crypto/ti,omap4-des.yaml
@@ -0,0 +1,65 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/ti,omap4-des.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: OMAP4 DES crypto Module
+
+maintainers:
+ - Aaro Koskinen <aaro.koskinen@iki.fi>
+ - Andreas Kemnade <andreas@kemnade.info>
+ - Kevin Hilman <khilman@baylibre.com>
+ - Roger Quadros <rogerq@kernel.org>
+ - Tony Lindgren <tony@atomide.com>
+
+properties:
+ compatible:
+ const: ti,omap4-des
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ dmas:
+ maxItems: 2
+
+ dma-names:
+ items:
+ - const: tx
+ - const: rx
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ items:
+ - const: fck
+
+dependencies:
+ dmas: [ dma-names ]
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ des@480a5000 {
+ compatible = "ti,omap4-des";
+ reg = <0x480a5000 0xa0>;
+ interrupts = <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&l3_iclk_div>;
+ clock-names = "fck";
+ dmas = <&sdma 117>, <&sdma 116>;
+ dma-names = "tx", "rx";
+ };
diff --git a/Documentation/devicetree/bindings/crypto/ti,sa2ul.yaml b/Documentation/devicetree/bindings/crypto/ti,sa2ul.yaml
index 77ec8bc70bf7..ff10a0838ad6 100644
--- a/Documentation/devicetree/bindings/crypto/ti,sa2ul.yaml
+++ b/Documentation/devicetree/bindings/crypto/ti,sa2ul.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause)
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/crypto/ti,sa2ul.yaml#
@@ -66,10 +66,22 @@ patternProperties:
required:
- compatible
- reg
- - power-domains
- dmas
- dma-names
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: ti,am62-sa3ul
+ then:
+ properties:
+ power-domains: false
+ else:
+ required:
+ - power-domains
+
additionalProperties: false
examples:
diff --git a/Documentation/devicetree/bindings/crypto/xlnx,versal-trng.yaml b/Documentation/devicetree/bindings/crypto/xlnx,versal-trng.yaml
new file mode 100644
index 000000000000..9dfb0b0ab5c8
--- /dev/null
+++ b/Documentation/devicetree/bindings/crypto/xlnx,versal-trng.yaml
@@ -0,0 +1,35 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/crypto/xlnx,versal-trng.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Xilinx Versal True Random Number Generator Hardware Accelerator
+
+maintainers:
+ - Harsh Jain <h.jain@amd.com>
+ - Mounika Botcha <mounika.botcha@amd.com>
+
+description:
+ The Versal True Random Number Generator consists of Ring Oscillators as
+ entropy source and a deterministic CTR_DRBG random bit generator (DRBG).
+
+properties:
+ compatible:
+ const: xlnx,versal-trng
+
+ reg:
+ maxItems: 1
+
+required:
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ rng@f1230000 {
+ compatible = "xlnx,versal-trng";
+ reg = <0xf1230000 0x1000>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/crypto/xlnx,zynqmp-aes.yaml b/Documentation/devicetree/bindings/crypto/xlnx,zynqmp-aes.yaml
index 9e8fbd02b150..8aead97a585b 100644
--- a/Documentation/devicetree/bindings/crypto/xlnx,zynqmp-aes.yaml
+++ b/Documentation/devicetree/bindings/crypto/xlnx,zynqmp-aes.yaml
@@ -7,8 +7,8 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Xilinx ZynqMP AES-GCM Hardware Accelerator
maintainers:
- - Kalyani Akula <kalyani.akula@xilinx.com>
- - Michal Simek <michal.simek@xilinx.com>
+ - Kalyani Akula <kalyani.akula@amd.com>
+ - Michal Simek <michal.simek@amd.com>
description: |
The ZynqMP AES-GCM hardened cryptographic accelerator is used to
diff --git a/Documentation/devicetree/bindings/devfreq/event/rockchip,dfi.yaml b/Documentation/devicetree/bindings/devfreq/event/rockchip,dfi.yaml
new file mode 100644
index 000000000000..50d3fabe958d
--- /dev/null
+++ b/Documentation/devicetree/bindings/devfreq/event/rockchip,dfi.yaml
@@ -0,0 +1,74 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/devfreq/event/rockchip,dfi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Rockchip DFI
+
+maintainers:
+ - Sascha Hauer <s.hauer@pengutronix.de>
+
+properties:
+ compatible:
+ enum:
+ - rockchip,rk3399-dfi
+ - rockchip,rk3568-dfi
+ - rockchip,rk3588-dfi
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ items:
+ - const: pclk_ddr_mon
+
+ interrupts:
+ minItems: 1
+ maxItems: 4
+
+ reg:
+ maxItems: 1
+
+ rockchip,pmu:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description:
+ Phandle to the syscon managing the "PMU general register files".
+
+required:
+ - compatible
+ - interrupts
+ - reg
+
+if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - rockchip,rk3399-dfi
+
+then:
+ required:
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/rk3308-cru.h>
+
+ bus {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ dfi: dfi@ff630000 {
+ compatible = "rockchip,rk3399-dfi";
+ reg = <0x00 0xff630000 0x00 0x4000>;
+ interrupts = <GIC_SPI 131 IRQ_TYPE_LEVEL_HIGH 0>;
+ rockchip,pmu = <&pmugrf>;
+ clocks = <&cru PCLK_DDR_MON>;
+ clock-names = "pclk_ddr_mon";
+ };
+ };
diff --git a/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt b/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt
deleted file mode 100644
index 148191b0fc15..000000000000
--- a/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt
+++ /dev/null
@@ -1,18 +0,0 @@
-
-* Rockchip rk3399 DFI device
-
-Required properties:
-- compatible: Must be "rockchip,rk3399-dfi".
-- reg: physical base address of each DFI and length of memory mapped region
-- rockchip,pmu: phandle to the syscon managing the "pmu general register files"
-- clocks: phandles for clock specified in "clock-names" property
-- clock-names : the name of clock used by the DFI, must be "pclk_ddr_mon";
-
-Example:
- dfi: dfi@ff630000 {
- compatible = "rockchip,rk3399-dfi";
- reg = <0x00 0xff630000 0x00 0x4000>;
- rockchip,pmu = <&pmugrf>;
- clocks = <&cru PCLK_DDR_MON>;
- clock-names = "pclk_ddr_mon";
- };
diff --git a/Documentation/devicetree/bindings/devfreq/event/samsung,exynos-ppmu.yaml b/Documentation/devicetree/bindings/devfreq/event/samsung,exynos-ppmu.yaml
index e300df4b47f3..d27dcb2fef12 100644
--- a/Documentation/devicetree/bindings/devfreq/event/samsung,exynos-ppmu.yaml
+++ b/Documentation/devicetree/bindings/devfreq/event/samsung,exynos-ppmu.yaml
@@ -18,7 +18,7 @@ description: |
each IP (DMC, CPU, RIGHTBUS, LEFTBUS, CAM interface, LCD, G3D, MFC). The
Exynos PPMU driver uses the devfreq-event class to provide event data to
various devfreq devices. The devfreq devices would use the event data when
- derterming the current state of each IP.
+ determining the current state of each IP.
properties:
compatible:
diff --git a/Documentation/devicetree/bindings/devfreq/nvidia,tegra30-actmon.yaml b/Documentation/devicetree/bindings/devfreq/nvidia,tegra30-actmon.yaml
index e3379d106728..ea1dc86bc31f 100644
--- a/Documentation/devicetree/bindings/devfreq/nvidia,tegra30-actmon.yaml
+++ b/Documentation/devicetree/bindings/devfreq/nvidia,tegra30-actmon.yaml
@@ -19,11 +19,14 @@ description: |
properties:
compatible:
- enum:
- - nvidia,tegra30-actmon
- - nvidia,tegra114-actmon
- - nvidia,tegra124-actmon
- - nvidia,tegra210-actmon
+ oneOf:
+ - enum:
+ - nvidia,tegra30-actmon
+ - nvidia,tegra114-actmon
+ - nvidia,tegra124-actmon
+ - items:
+ - const: nvidia,tegra210-actmon
+ - const: nvidia,tegra124-actmon
reg:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-display-frontend.yaml b/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-display-frontend.yaml
index 98e8240a05bd..995b3ef408b7 100644
--- a/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-display-frontend.yaml
+++ b/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-display-frontend.yaml
@@ -121,5 +121,4 @@ examples:
};
};
-
...
diff --git a/Documentation/devicetree/bindings/display/allwinner,sun6i-a31-drc.yaml b/Documentation/devicetree/bindings/display/allwinner,sun6i-a31-drc.yaml
index 895506d93f4c..85a6086cc10e 100644
--- a/Documentation/devicetree/bindings/display/allwinner,sun6i-a31-drc.yaml
+++ b/Documentation/devicetree/bindings/display/allwinner,sun6i-a31-drc.yaml
@@ -121,5 +121,4 @@ examples:
};
};
-
...
diff --git a/Documentation/devicetree/bindings/display/allwinner,sun8i-a83t-de2-mixer.yaml b/Documentation/devicetree/bindings/display/allwinner,sun8i-a83t-de2-mixer.yaml
index b75c1ec686ad..cbd18fd83e52 100644
--- a/Documentation/devicetree/bindings/display/allwinner,sun8i-a83t-de2-mixer.yaml
+++ b/Documentation/devicetree/bindings/display/allwinner,sun8i-a83t-de2-mixer.yaml
@@ -24,9 +24,11 @@ properties:
- allwinner,sun50i-a64-de2-mixer-0
- allwinner,sun50i-a64-de2-mixer-1
- allwinner,sun50i-h6-de3-mixer-0
+ - allwinner,sun50i-h616-de33-mixer-0
- reg:
- maxItems: 1
+ reg: true
+
+ reg-names: true
clocks:
items:
@@ -61,6 +63,34 @@ properties:
required:
- port@1
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - allwinner,sun50i-h616-de33-mixer-0
+ then:
+ properties:
+ reg:
+ description: |
+ Registers for controlling individual layers of the display
+ engine (layers), global control (top), and display blending
+ control (display). Names are from Allwinner BSP kernel.
+ maxItems: 3
+ reg-names:
+ items:
+ - const: layers
+ - const: top
+ - const: display
+ required:
+ - reg-names
+
+ else:
+ properties:
+ reg:
+ maxItems: 1
+
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/display/allwinner,sun8i-a83t-dw-hdmi.yaml b/Documentation/devicetree/bindings/display/allwinner,sun8i-a83t-dw-hdmi.yaml
index 60fd927b5a06..c43b02ec884f 100644
--- a/Documentation/devicetree/bindings/display/allwinner,sun8i-a83t-dw-hdmi.yaml
+++ b/Documentation/devicetree/bindings/display/allwinner,sun8i-a83t-dw-hdmi.yaml
@@ -142,7 +142,6 @@ then:
reset-names:
minItems: 2
-
additionalProperties: false
examples:
diff --git a/Documentation/devicetree/bindings/display/amlogic,meson-dw-hdmi.yaml b/Documentation/devicetree/bindings/display/amlogic,meson-dw-hdmi.yaml
index 0c85894648d8..416fe263ac92 100644
--- a/Documentation/devicetree/bindings/display/amlogic,meson-dw-hdmi.yaml
+++ b/Documentation/devicetree/bindings/display/amlogic,meson-dw-hdmi.yaml
@@ -71,6 +71,10 @@ properties:
- const: iahb
- const: venci
+ power-domains:
+ maxItems: 1
+ description: phandle to the associated power domain
+
resets:
minItems: 3
@@ -129,6 +133,7 @@ examples:
reset-names = "hdmitx_apb", "hdmitx", "hdmitx_phy";
clocks = <&clk_isfr>, <&clk_iahb>, <&clk_venci>;
clock-names = "isfr", "iahb", "venci";
+ power-domains = <&pd_vpu>;
#address-cells = <1>;
#size-cells = <0>;
@@ -143,10 +148,10 @@ examples:
/* TMDS Output */
hdmi_tx_tmds_port: port@1 {
- reg = <1>;
+ reg = <1>;
- hdmi_tx_tmds_out: endpoint {
- remote-endpoint = <&hdmi_connector_in>;
- };
+ hdmi_tx_tmds_out: endpoint {
+ remote-endpoint = <&hdmi_connector_in>;
+ };
};
};
diff --git a/Documentation/devicetree/bindings/display/amlogic,meson-g12a-dw-mipi-dsi.yaml b/Documentation/devicetree/bindings/display/amlogic,meson-g12a-dw-mipi-dsi.yaml
new file mode 100644
index 000000000000..a3428f012005
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/amlogic,meson-g12a-dw-mipi-dsi.yaml
@@ -0,0 +1,118 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright 2020 BayLibre, SAS
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/amlogic,meson-g12a-dw-mipi-dsi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amlogic specific extensions to the Synopsys Designware MIPI DSI Host Controller
+
+maintainers:
+ - Neil Armstrong <neil.armstrong@linaro.org>
+
+description: |
+ The Amlogic Meson Synopsys Designware Integration is composed of
+ - A Synopsys DesignWare MIPI DSI Host Controller IP
+ - A TOP control block controlling the Clocks & Resets of the IP
+
+allOf:
+ - $ref: dsi-controller.yaml#
+
+properties:
+ compatible:
+ enum:
+ - amlogic,meson-g12a-dw-mipi-dsi
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ minItems: 3
+ maxItems: 4
+
+ clock-names:
+ minItems: 3
+ items:
+ - const: pclk
+ - const: bit
+ - const: px
+ - const: meas
+
+ resets:
+ maxItems: 1
+
+ reset-names:
+ items:
+ - const: top
+
+ phys:
+ maxItems: 1
+
+ phy-names:
+ items:
+ - const: dphy
+
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+
+ properties:
+ port@0:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: Input node to receive pixel data.
+
+ port@1:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: DSI output node to panel.
+
+ required:
+ - port@0
+ - port@1
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - resets
+ - reset-names
+ - phys
+ - phy-names
+ - ports
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ dsi@6000 {
+ compatible = "amlogic,meson-g12a-dw-mipi-dsi";
+ reg = <0x6000 0x400>;
+ resets = <&reset_top>;
+ reset-names = "top";
+ clocks = <&clk_pclk>, <&bit_clk>, <&clk_px>;
+ clock-names = "pclk", "bit", "px";
+ phys = <&mipi_dphy>;
+ phy-names = "dphy";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ /* VPU VENC Input */
+ mipi_dsi_venc_port: port@0 {
+ reg = <0>;
+
+ mipi_dsi_in: endpoint {
+ remote-endpoint = <&dpi_out>;
+ };
+ };
+
+ /* DSI Output */
+ mipi_dsi_panel_port: port@1 {
+ reg = <1>;
+
+ mipi_out_panel: endpoint {
+ remote-endpoint = <&mipi_in_panel>;
+ };
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/display/amlogic,meson-vpu.yaml b/Documentation/devicetree/bindings/display/amlogic,meson-vpu.yaml
index 0c72120acc4f..3ae45db85ea7 100644
--- a/Documentation/devicetree/bindings/display/amlogic,meson-vpu.yaml
+++ b/Documentation/devicetree/bindings/display/amlogic,meson-vpu.yaml
@@ -25,7 +25,6 @@ description: |
M |-------|______|----|____________| |________________| | |
___|__________________________________________________________|_______________|
-
VIU: Video Input Unit
---------------------
@@ -96,6 +95,11 @@ properties:
description:
A port node pointing to the HDMI-TX port node.
+ port@2:
+ $ref: /schemas/graph.yaml#/properties/port
+ description:
+ A port node pointing to the DPI port node (e.g. DSI or LVDS transceiver).
+
"#address-cells":
const: 1
diff --git a/Documentation/devicetree/bindings/display/apple,h7-display-pipe-mipi.yaml b/Documentation/devicetree/bindings/display/apple,h7-display-pipe-mipi.yaml
new file mode 100644
index 000000000000..5e6da66499a5
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/apple,h7-display-pipe-mipi.yaml
@@ -0,0 +1,83 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/apple,h7-display-pipe-mipi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Apple pre-DCP display controller MIPI interface
+
+maintainers:
+ - Sasha Finkelstein <fnkl.kernel@gmail.com>
+
+description:
+ The MIPI controller part of the pre-DCP Apple display controller
+
+allOf:
+ - $ref: dsi-controller.yaml#
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - apple,t8112-display-pipe-mipi
+ - apple,t8103-display-pipe-mipi
+ - const: apple,h7-display-pipe-mipi
+
+ reg:
+ maxItems: 1
+
+ power-domains:
+ maxItems: 1
+
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+
+ properties:
+ port@0:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: Input port. Always connected to the primary controller
+
+ port@1:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: Output MIPI DSI port to the panel
+
+ required:
+ - port@0
+ - port@1
+
+required:
+ - compatible
+ - reg
+ - ports
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ dsi@28200000 {
+ compatible = "apple,t8103-display-pipe-mipi", "apple,h7-display-pipe-mipi";
+ reg = <0x28200000 0xc000>;
+ power-domains = <&ps_dispdfr_mipi>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ dfr_adp_out_mipi: endpoint {
+ remote-endpoint = <&dfr_adp_out_mipi>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ dfr_panel_in: endpoint {
+ remote-endpoint = <&dfr_mipi_out_panel>;
+ };
+ };
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/display/apple,h7-display-pipe.yaml b/Documentation/devicetree/bindings/display/apple,h7-display-pipe.yaml
new file mode 100644
index 000000000000..102fb1804c0c
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/apple,h7-display-pipe.yaml
@@ -0,0 +1,88 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/apple,h7-display-pipe.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Apple pre-DCP display controller
+
+maintainers:
+ - Sasha Finkelstein <fnkl.kernel@gmail.com>
+
+description:
+ A secondary display controller used to drive the "touchbar" on
+ certain Apple laptops.
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - apple,t8112-display-pipe
+ - apple,t8103-display-pipe
+ - const: apple,h7-display-pipe
+
+ reg:
+ items:
+ - description: Primary register block, controls planes and blending
+ - description:
+ Contains other configuration registers like interrupt
+ and FIFO control
+
+ reg-names:
+ items:
+ - const: be
+ - const: fe
+
+ power-domains:
+ description:
+ Phandles to pmgr entries that are needed for this controller to turn on.
+ Aside from that, their specific functions are unknown
+ maxItems: 2
+
+ interrupts:
+ items:
+ - description: Unknown function
+ - description: Primary interrupt. Vsync events are reported via it
+
+ interrupt-names:
+ items:
+ - const: be
+ - const: fe
+
+ iommus:
+ maxItems: 1
+
+ port:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: Output port. Always connected to apple,h7-display-pipe-mipi
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - port
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/apple-aic.h>
+ display-pipe@28200000 {
+ compatible = "apple,t8103-display-pipe", "apple,h7-display-pipe";
+ reg = <0x28200000 0xc000>,
+ <0x28400000 0x4000>;
+ reg-names = "be", "fe";
+ power-domains = <&ps_dispdfr_fe>, <&ps_dispdfr_be>;
+ interrupt-parent = <&aic>;
+ interrupts = <AIC_IRQ 502 IRQ_TYPE_LEVEL_HIGH>,
+ <AIC_IRQ 506 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "be", "fe";
+ iommus = <&displaydfr_dart 0>;
+
+ port {
+ dfr_adp_out_mipi: endpoint {
+ remote-endpoint = <&dfr_mipi_in_adp>;
+ };
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/display/arm,pl11x.yaml b/Documentation/devicetree/bindings/display/arm,pl11x.yaml
index 6cc9045e5c68..a43c1c9d9113 100644
--- a/Documentation/devicetree/bindings/display/arm,pl11x.yaml
+++ b/Documentation/devicetree/bindings/display/arm,pl11x.yaml
@@ -78,6 +78,9 @@ properties:
If not present, the memory interface is fast enough to handle all
possible video modes.
+ resets:
+ maxItems: 1
+
port:
$ref: /schemas/graph.yaml#/$defs/port-base
additionalProperties: false
diff --git a/Documentation/devicetree/bindings/display/atmel,lcdc-display.yaml b/Documentation/devicetree/bindings/display/atmel,lcdc-display.yaml
new file mode 100644
index 000000000000..a5cf040ab4ea
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/atmel,lcdc-display.yaml
@@ -0,0 +1,103 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/atmel,lcdc-display.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip's LCDC Display
+
+maintainers:
+ - Nicolas Ferre <nicolas.ferre@microchip.com>
+ - Dharma Balasubiramani <dharma.b@microchip.com>
+
+description:
+ The LCD Controller (LCDC) consists of logic for transferring LCD image data
+ from an external display buffer to a TFT LCD panel. The LCDC has one display
+ input buffer per layer that fetches pixels through the single bus host
+ interface and a look-up table to allow palletized display configurations. The
+ LCDC is programmable on a per layer basis, and supports different LCD
+ resolutions, window sizes, image formats and pixel depths.
+
+# We need a select here since this schema is applicable only for nodes with the
+# following properties
+
+select:
+ anyOf:
+ - required: [ 'atmel,dmacon' ]
+ - required: [ 'atmel,lcdcon2' ]
+ - required: [ 'atmel,guard-time' ]
+
+properties:
+ atmel,dmacon:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: dma controller configuration
+
+ atmel,lcdcon2:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: lcd controller configuration
+
+ atmel,guard-time:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: lcd guard time (Delay in frame periods)
+ maximum: 127
+
+ bits-per-pixel:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: lcd panel bit-depth.
+ enum: [1, 2, 4, 8, 16, 24, 32]
+
+ atmel,lcdcon-backlight:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description: enable backlight
+
+ atmel,lcdcon-backlight-inverted:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description: invert backlight PWM polarity
+
+ atmel,lcd-wiring-mode:
+ $ref: /schemas/types.yaml#/definitions/string
+ description: lcd wiring mode "RGB" or "BRG"
+ enum:
+ - RGB
+ - BRG
+
+ atmel,power-control-gpio:
+ description: gpio to power on or off the LCD (as many as needed)
+ maxItems: 1
+
+ display-timings:
+ $ref: panel/display-timings.yaml#
+
+required:
+ - atmel,dmacon
+ - atmel,lcdcon2
+ - atmel,guard-time
+ - bits-per-pixel
+
+additionalProperties: false
+
+examples:
+ - |
+ display: panel {
+ bits-per-pixel = <32>;
+ atmel,lcdcon-backlight;
+ atmel,dmacon = <0x1>;
+ atmel,lcdcon2 = <0x80008002>;
+ atmel,guard-time = <9>;
+ atmel,lcd-wiring-mode = "RGB";
+
+ display-timings {
+ native-mode = <&timing0>;
+ timing0: timing0 {
+ clock-frequency = <9000000>;
+ hactive = <480>;
+ vactive = <272>;
+ hback-porch = <1>;
+ hfront-porch = <1>;
+ vback-porch = <40>;
+ vfront-porch = <1>;
+ hsync-len = <45>;
+ vsync-len = <1>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/display/atmel,lcdc.txt b/Documentation/devicetree/bindings/display/atmel,lcdc.txt
deleted file mode 100644
index b5e355ada2fa..000000000000
--- a/Documentation/devicetree/bindings/display/atmel,lcdc.txt
+++ /dev/null
@@ -1,87 +0,0 @@
-Atmel LCDC Framebuffer
------------------------------------------------------
-
-Required properties:
-- compatible :
- "atmel,at91sam9261-lcdc" ,
- "atmel,at91sam9263-lcdc" ,
- "atmel,at91sam9g10-lcdc" ,
- "atmel,at91sam9g45-lcdc" ,
- "atmel,at91sam9g45es-lcdc" ,
- "atmel,at91sam9rl-lcdc" ,
-- reg : Should contain 1 register ranges(address and length).
- Can contain an additional register range(address and length)
- for fixed framebuffer memory. Useful for dedicated memories.
-- interrupts : framebuffer controller interrupt
-- display: a phandle pointing to the display node
-
-Required nodes:
-- display: a display node is required to initialize the lcd panel
- This should be in the board dts.
-- default-mode: a videomode within the display with timing parameters
- as specified below.
-
-Optional properties:
-- lcd-supply: Regulator for LCD supply voltage.
-
-Example:
-
- fb0: fb@00500000 {
- compatible = "atmel,at91sam9g45-lcdc";
- reg = <0x00500000 0x1000>;
- interrupts = <23 3 0>;
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_fb>;
- display = <&display0>;
- #address-cells = <1>;
- #size-cells = <1>;
-
- };
-
-Example for fixed framebuffer memory:
-
- fb0: fb@00500000 {
- compatible = "atmel,at91sam9263-lcdc";
- reg = <0x00700000 0x1000 0x70000000 0x200000>;
- [...]
- };
-
-Atmel LCDC Display
------------------------------------------------------
-Required properties (as per of_videomode_helper):
-
- - atmel,dmacon: dma controller configuration
- - atmel,lcdcon2: lcd controller configuration
- - atmel,guard-time: lcd guard time (Delay in frame periods)
- - bits-per-pixel: lcd panel bit-depth.
-
-Optional properties (as per of_videomode_helper):
- - atmel,lcdcon-backlight: enable backlight
- - atmel,lcdcon-backlight-inverted: invert backlight PWM polarity
- - atmel,lcd-wiring-mode: lcd wiring mode "RGB" or "BRG"
- - atmel,power-control-gpio: gpio to power on or off the LCD (as many as needed)
-
-Example:
- display0: display {
- bits-per-pixel = <32>;
- atmel,lcdcon-backlight;
- atmel,dmacon = <0x1>;
- atmel,lcdcon2 = <0x80008002>;
- atmel,guard-time = <9>;
- atmel,lcd-wiring-mode = <1>;
-
- display-timings {
- native-mode = <&timing0>;
- timing0: timing0 {
- clock-frequency = <9000000>;
- hactive = <480>;
- vactive = <272>;
- hback-porch = <1>;
- hfront-porch = <1>;
- vback-porch = <40>;
- vfront-porch = <1>;
- hsync-len = <45>;
- vsync-len = <1>;
- };
- };
- };
diff --git a/Documentation/devicetree/bindings/display/atmel,lcdc.yaml b/Documentation/devicetree/bindings/display/atmel,lcdc.yaml
new file mode 100644
index 000000000000..1b6f7e395006
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/atmel,lcdc.yaml
@@ -0,0 +1,70 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/atmel,lcdc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip's LCDC Framebuffer
+
+maintainers:
+ - Nicolas Ferre <nicolas.ferre@microchip.com>
+ - Dharma Balasubiramani <dharma.b@microchip.com>
+
+description:
+ The LCDC works with a framebuffer, which is a section of memory that contains
+ a complete frame of data representing pixel values for the display. The LCDC
+ reads the pixel data from the framebuffer and sends it to the LCD panel to
+ render the image.
+
+properties:
+ compatible:
+ enum:
+ - atmel,at91sam9261-lcdc
+ - atmel,at91sam9263-lcdc
+ - atmel,at91sam9g10-lcdc
+ - atmel,at91sam9g45-lcdc
+ - atmel,at91sam9g45es-lcdc
+ - atmel,at91sam9rl-lcdc
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 2
+
+ clock-names:
+ items:
+ - const: hclk
+ - const: lcdc_clk
+
+ display:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: A phandle pointing to the display node.
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - display
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/at91.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ fb@500000 {
+ compatible = "atmel,at91sam9g45-lcdc";
+ reg = <0x00500000 0x1000>;
+ interrupts = <23 IRQ_TYPE_LEVEL_HIGH 0>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_fb>;
+ clocks = <&pmc PMC_TYPE_PERIPHERAL 23>, <&pmc PMC_TYPE_PERIPHERAL 23>;
+ clock-names = "hclk", "lcdc_clk";
+ display = <&display>;
+ };
diff --git a/Documentation/devicetree/bindings/display/atmel/atmel,hlcdc-display-controller.yaml b/Documentation/devicetree/bindings/display/atmel/atmel,hlcdc-display-controller.yaml
new file mode 100644
index 000000000000..29ed42485de3
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/atmel/atmel,hlcdc-display-controller.yaml
@@ -0,0 +1,63 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/atmel/atmel,hlcdc-display-controller.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Atmel's High LCD Controller (HLCDC)
+
+maintainers:
+ - Nicolas Ferre <nicolas.ferre@microchip.com>
+ - Alexandre Belloni <alexandre.belloni@bootlin.com>
+ - Claudiu Beznea <claudiu.beznea@tuxon.dev>
+
+description:
+ The LCD Controller (LCDC) consists of logic for transferring LCD image
+ data from an external display buffer to a TFT LCD panel. The LCDC has one
+ display input buffer per layer that fetches pixels through the single bus
+ host interface and a look-up table to allow palletized display
+ configurations.
+
+properties:
+ compatible:
+ const: atmel,hlcdc-display-controller
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+ port@0:
+ $ref: /schemas/graph.yaml#/$defs/port-base
+ unevaluatedProperties: false
+ description:
+ Output endpoint of the controller, connecting the LCD panel signals.
+
+ properties:
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+ reg:
+ maxItems: 1
+
+ endpoint:
+ $ref: /schemas/media/video-interfaces.yaml#
+ unevaluatedProperties: false
+ description:
+ Endpoint connecting the LCD panel signals.
+
+ properties:
+ bus-width:
+ enum: [ 12, 16, 18, 24 ]
+
+required:
+ - '#address-cells'
+ - '#size-cells'
+ - compatible
+ - port@0
+
+additionalProperties: false
diff --git a/Documentation/devicetree/bindings/display/atmel/hlcdc-dc.txt b/Documentation/devicetree/bindings/display/atmel/hlcdc-dc.txt
deleted file mode 100644
index 0398aec488ac..000000000000
--- a/Documentation/devicetree/bindings/display/atmel/hlcdc-dc.txt
+++ /dev/null
@@ -1,75 +0,0 @@
-Device-Tree bindings for Atmel's HLCDC (High LCD Controller) DRM driver
-
-The Atmel HLCDC Display Controller is subdevice of the HLCDC MFD device.
-See ../../mfd/atmel-hlcdc.txt for more details.
-
-Required properties:
- - compatible: value should be "atmel,hlcdc-display-controller"
- - pinctrl-names: the pin control state names. Should contain "default".
- - pinctrl-0: should contain the default pinctrl states.
- - #address-cells: should be set to 1.
- - #size-cells: should be set to 0.
-
-Required children nodes:
- Children nodes are encoding available output ports and their connections
- to external devices using the OF graph reprensentation (see ../graph.txt).
- At least one port node is required.
-
-Optional properties in grandchild nodes:
- Any endpoint grandchild node may specify a desired video interface
- according to ../../media/video-interfaces.txt, specifically
- - bus-width: recognized values are <12>, <16>, <18> and <24>, and
- override any output mode selection heuristic, forcing "rgb444",
- "rgb565", "rgb666" and "rgb888" respectively.
-
-Example:
-
- hlcdc: hlcdc@f0030000 {
- compatible = "atmel,sama5d3-hlcdc";
- reg = <0xf0030000 0x2000>;
- interrupts = <36 IRQ_TYPE_LEVEL_HIGH 0>;
- clocks = <&lcdc_clk>, <&lcdck>, <&clk32k>;
- clock-names = "periph_clk","sys_clk", "slow_clk";
-
- hlcdc-display-controller {
- compatible = "atmel,hlcdc-display-controller";
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_lcd_base &pinctrl_lcd_rgb888>;
- #address-cells = <1>;
- #size-cells = <0>;
-
- port@0 {
- #address-cells = <1>;
- #size-cells = <0>;
- reg = <0>;
-
- hlcdc_panel_output: endpoint@0 {
- reg = <0>;
- remote-endpoint = <&panel_input>;
- };
- };
- };
-
- hlcdc_pwm: hlcdc-pwm {
- compatible = "atmel,hlcdc-pwm";
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_lcd_pwm>;
- #pwm-cells = <3>;
- };
- };
-
-Example 2: With a video interface override to force rgb565; as above
-but with these changes/additions:
-
- &hlcdc {
- hlcdc-display-controller {
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_lcd_base &pinctrl_lcd_rgb565>;
-
- port@0 {
- hlcdc_panel_output: endpoint@0 {
- bus-width = <16>;
- };
- };
- };
- };
diff --git a/Documentation/devicetree/bindings/display/brcm,bcm2711-hdmi.yaml b/Documentation/devicetree/bindings/display/brcm,bcm2711-hdmi.yaml
index 5b35adf34c7b..c1cefd547391 100644
--- a/Documentation/devicetree/bindings/display/brcm,bcm2711-hdmi.yaml
+++ b/Documentation/devicetree/bindings/display/brcm,bcm2711-hdmi.yaml
@@ -14,6 +14,8 @@ properties:
enum:
- brcm,bcm2711-hdmi0
- brcm,bcm2711-hdmi1
+ - brcm,bcm2712-hdmi0
+ - brcm,bcm2712-hdmi1
reg:
items:
@@ -54,22 +56,12 @@ properties:
- const: cec
interrupts:
- items:
- - description: CEC TX interrupt
- - description: CEC RX interrupt
- - description: CEC stuck at low interrupt
- - description: Wake-up interrupt
- - description: Hotplug connected interrupt
- - description: Hotplug removed interrupt
+ minItems: 5
+ maxItems: 6
interrupt-names:
- items:
- - const: cec-tx
- - const: cec-rx
- - const: cec-low
- - const: wakeup
- - const: hpd-connected
- - const: hpd-removed
+ minItems: 5
+ maxItems: 6
ddc:
$ref: /schemas/types.yaml#/definitions/phandle
@@ -110,6 +102,61 @@ required:
additionalProperties: false
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - brcm,bcm2711-hdmi0
+ - brcm,bcm2711-hdmi1
+ then:
+ properties:
+ interrupts:
+ items:
+ - description: CEC TX interrupt
+ - description: CEC RX interrupt
+ - description: CEC stuck at low interrupt
+ - description: Wake-up interrupt
+ - description: Hotplug connected interrupt
+ - description: Hotplug removed interrupt
+ interrupt-names:
+ items:
+ - const: cec-tx
+ - const: cec-rx
+ - const: cec-low
+ - const: wakeup
+ - const: hpd-connected
+ - const: hpd-removed
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - brcm,bcm2712-hdmi0
+ - brcm,bcm2712-hdmi1
+ then:
+ properties:
+ interrupts:
+ items:
+ - description: CEC TX interrupt
+ - description: CEC RX interrupt
+ - description: CEC stuck at low interrupt
+ - description: Hotplug connected interrupt
+ - description: Hotplug removed interrupt
+ interrupts-names:
+ items:
+ - const: cec-tx
+ - const: cec-rx
+ - const: cec-low
+ - const: hpd-connected
+ - const: hpd-removed
+
+ required:
+ - interrupts
+ - interrupt-names
+
examples:
- |
hdmi0: hdmi@7ef00700 {
@@ -134,6 +181,9 @@ examples:
"hd";
clocks = <&firmware_clocks 13>, <&firmware_clocks 14>, <&dvp 1>, <&clk_27MHz>;
clock-names = "hdmi", "bvb", "audio", "cec";
+ interrupts = <0>, <1>, <2>, <3>, <4>, <5>;
+ interrupt-names = "cec-tx", "cec-rx", "cec-low", "wakeup",
+ "hpd-connected", "hpd-removed";
resets = <&dvp 0>;
ddc = <&ddc0>;
};
diff --git a/Documentation/devicetree/bindings/display/brcm,bcm2835-hvs.yaml b/Documentation/devicetree/bindings/display/brcm,bcm2835-hvs.yaml
index 2e8566f47e63..9aca38a58a16 100644
--- a/Documentation/devicetree/bindings/display/brcm,bcm2835-hvs.yaml
+++ b/Documentation/devicetree/bindings/display/brcm,bcm2835-hvs.yaml
@@ -13,17 +13,27 @@ properties:
compatible:
enum:
- brcm,bcm2711-hvs
+ - brcm,bcm2712-hvs
- brcm,bcm2835-hvs
reg:
maxItems: 1
interrupts:
- maxItems: 1
+ minItems: 1
+ maxItems: 3
+
+ interrupt-names:
+ minItems: 1
+ maxItems: 3
clocks:
- maxItems: 1
- description: Core Clock
+ minItems: 1
+ maxItems: 2
+
+ clock-names:
+ minItems: 1
+ maxItems: 2
required:
- compatible
@@ -32,15 +42,68 @@ required:
additionalProperties: false
-if:
- properties:
- compatible:
- contains:
- const: brcm,bcm2711-hvs
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: brcm,bcm2711-hvs
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: Core Clock
+ interrupts:
+ maxItems: 1
+ clock-names: false
+ interrupt-names: false
+
+ required:
+ - clocks
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: brcm,bcm2712-hvs
+
+ then:
+ properties:
+ clocks:
+ minItems: 2
+ maxItems: 2
+ clock-names:
+ items:
+ - const: core
+ - const: disp
+ interrupts:
+ items:
+ - description: Channel 0 End of frame
+ - description: Channel 1 End of frame
+ - description: Channel 2 End of frame
+ interrupt-names:
+ items:
+ - const: ch0-eof
+ - const: ch1-eof
+ - const: ch2-eof
+ required:
+ - clocks
+ - clock-names
+ - interrupt-names
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: brcm,bcm2835-hvs
-then:
- required:
- - clocks
+ then:
+ properties:
+ interrupts:
+ maxItems: 1
+ clock-names: false
+ interrupt-names: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/display/brcm,bcm2835-pixelvalve0.yaml b/Documentation/devicetree/bindings/display/brcm,bcm2835-pixelvalve0.yaml
index 4e1ba03f6477..6b5b1d3fbc0b 100644
--- a/Documentation/devicetree/bindings/display/brcm,bcm2835-pixelvalve0.yaml
+++ b/Documentation/devicetree/bindings/display/brcm,bcm2835-pixelvalve0.yaml
@@ -20,6 +20,9 @@ properties:
- brcm,bcm2711-pixelvalve2
- brcm,bcm2711-pixelvalve3
- brcm,bcm2711-pixelvalve4
+ - brcm,bcm2712-pixelvalve0
+ - brcm,bcm2712-pixelvalve1
+ - brcm,bcm2712-pixelvalve2
reg:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/display/brcm,bcm2835-txp.yaml b/Documentation/devicetree/bindings/display/brcm,bcm2835-txp.yaml
index bb186197e471..16f45afd2bad 100644
--- a/Documentation/devicetree/bindings/display/brcm,bcm2835-txp.yaml
+++ b/Documentation/devicetree/bindings/display/brcm,bcm2835-txp.yaml
@@ -11,7 +11,10 @@ maintainers:
properties:
compatible:
- const: brcm,bcm2835-txp
+ enum:
+ - brcm,bcm2712-mop
+ - brcm,bcm2712-moplet
+ - brcm,bcm2835-txp
reg:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/display/brcm,bcm2835-vc4.yaml b/Documentation/devicetree/bindings/display/brcm,bcm2835-vc4.yaml
index 49a5e041aa49..2aa9d5d2afff 100644
--- a/Documentation/devicetree/bindings/display/brcm,bcm2835-vc4.yaml
+++ b/Documentation/devicetree/bindings/display/brcm,bcm2835-vc4.yaml
@@ -18,6 +18,7 @@ properties:
compatible:
enum:
- brcm,bcm2711-vc5
+ - brcm,bcm2712-vc6
- brcm,bcm2835-vc4
- brcm,cygnus-vc4
diff --git a/Documentation/devicetree/bindings/display/bridge/adi,adv7511.yaml b/Documentation/devicetree/bindings/display/bridge/adi,adv7511.yaml
index 5bbe81862c8f..d29a0d06187e 100644
--- a/Documentation/devicetree/bindings/display/bridge/adi,adv7511.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/adi,adv7511.yaml
@@ -156,7 +156,6 @@ else:
adi,input-style: false
adi,input-justification: false
-
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/display/bridge/adi,adv7533.yaml b/Documentation/devicetree/bindings/display/bridge/adi,adv7533.yaml
index 987aa83c2649..ec89115c74e4 100644
--- a/Documentation/devicetree/bindings/display/bridge/adi,adv7533.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/adi,adv7533.yaml
@@ -9,6 +9,9 @@ title: Analog Devices ADV7533/35 HDMI Encoders
maintainers:
- Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+allOf:
+ - $ref: /schemas/sound/dai-common.yaml#
+
description: |
The ADV7533 and ADV7535 are HDMI audio and video transmitters
compatible with HDMI 1.4 and DVI 1.0. They support color space
@@ -87,7 +90,10 @@ properties:
adi,dsi-lanes:
description: Number of DSI data lanes connected to the DSI host.
$ref: /schemas/types.yaml#/definitions/uint32
- enum: [ 1, 2, 3, 4 ]
+ enum: [ 2, 3, 4 ]
+
+ "#sound-dai-cells":
+ const: 0
ports:
description:
diff --git a/Documentation/devicetree/bindings/display/bridge/analogix,anx7814.yaml b/Documentation/devicetree/bindings/display/bridge/analogix,anx7814.yaml
index 4a5e5d9d6f90..4509c496731b 100644
--- a/Documentation/devicetree/bindings/display/bridge/analogix,anx7814.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/analogix,anx7814.yaml
@@ -17,6 +17,7 @@ properties:
- analogix,anx7808
- analogix,anx7812
- analogix,anx7814
+ - analogix,anx7816
- analogix,anx7818
reg:
diff --git a/Documentation/devicetree/bindings/display/bridge/analogix,dp.yaml b/Documentation/devicetree/bindings/display/bridge/analogix,dp.yaml
index c9b06885cc63..62f0521b0924 100644
--- a/Documentation/devicetree/bindings/display/bridge/analogix,dp.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/analogix,dp.yaml
@@ -26,6 +26,7 @@ properties:
const: dp
force-hpd:
+ type: boolean
description:
Indicate driver need force hpd when hpd detect failed, this
is used for some eDP screen which don not have a hpd signal.
diff --git a/Documentation/devicetree/bindings/display/bridge/fsl,imx8mp-hdmi-tx.yaml b/Documentation/devicetree/bindings/display/bridge/fsl,imx8mp-hdmi-tx.yaml
new file mode 100644
index 000000000000..6211ab8bbb0e
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/fsl,imx8mp-hdmi-tx.yaml
@@ -0,0 +1,114 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/bridge/fsl,imx8mp-hdmi-tx.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX8MP DWC HDMI TX Encoder
+
+maintainers:
+ - Lucas Stach <l.stach@pengutronix.de>
+
+description:
+ The i.MX8MP HDMI transmitter is a Synopsys DesignWare
+ HDMI 2.0a TX controller IP.
+
+allOf:
+ - $ref: /schemas/display/bridge/synopsys,dw-hdmi.yaml#
+
+properties:
+ compatible:
+ enum:
+ - fsl,imx8mp-hdmi-tx
+
+ reg-io-width:
+ const: 1
+
+ clocks:
+ maxItems: 4
+
+ clock-names:
+ items:
+ - const: iahb
+ - const: isfr
+ - const: cec
+ - const: pix
+
+ power-domains:
+ maxItems: 1
+
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+
+ properties:
+ port@0:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: Parallel RGB input port
+
+ port@1:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: HDMI output port
+
+ port@2:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: Parallel audio input port
+
+ required:
+ - port@0
+ - port@1
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - interrupts
+ - power-domains
+ - ports
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/imx8mp-clock.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/power/imx8mp-power.h>
+
+ hdmi@32fd8000 {
+ compatible = "fsl,imx8mp-hdmi-tx";
+ reg = <0x32fd8000 0x7eff>;
+ interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clk IMX8MP_CLK_HDMI_APB>,
+ <&clk IMX8MP_CLK_HDMI_REF_266M>,
+ <&clk IMX8MP_CLK_32K>,
+ <&hdmi_tx_phy>;
+ clock-names = "iahb", "isfr", "cec", "pix";
+ power-domains = <&hdmi_blk_ctrl IMX8MP_HDMIBLK_PD_HDMI_TX>;
+ reg-io-width = <1>;
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ port@0 {
+ reg = <0>;
+
+ endpoint {
+ remote-endpoint = <&pvi_to_hdmi_tx>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ endpoint {
+ remote-endpoint = <&hdmi0_con>;
+ };
+ };
+
+ port@2 {
+ reg = <2>;
+
+ endpoint {
+ remote-endpoint = <&pai_to_hdmi_tx>;
+ };
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/display/bridge/fsl,imx93-mipi-dsi.yaml b/Documentation/devicetree/bindings/display/bridge/fsl,imx93-mipi-dsi.yaml
new file mode 100644
index 000000000000..d6e51d0cf546
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/fsl,imx93-mipi-dsi.yaml
@@ -0,0 +1,115 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/bridge/fsl,imx93-mipi-dsi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX93 specific extensions to Synopsys Designware MIPI DSI
+
+maintainers:
+ - Liu Ying <victor.liu@nxp.com>
+
+description: |
+ There is a Synopsys Designware MIPI DSI Host Controller and a Synopsys
+ Designware MIPI DPHY embedded in Freescale i.MX93 SoC. Some configurations
+ and extensions to them are controlled by i.MX93 media blk-ctrl.
+
+allOf:
+ - $ref: snps,dw-mipi-dsi.yaml#
+
+properties:
+ compatible:
+ const: fsl,imx93-mipi-dsi
+
+ clocks:
+ items:
+ - description: apb clock
+ - description: pixel clock
+ - description: PHY configuration clock
+ - description: PHY reference clock
+
+ clock-names:
+ items:
+ - const: pclk
+ - const: pix
+ - const: phy_cfg
+ - const: phy_ref
+
+ interrupts:
+ maxItems: 1
+
+ fsl,media-blk-ctrl:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description:
+ i.MX93 media blk-ctrl, as a syscon, controls pixel component bit map
+ configurations from LCDIF display controller to the MIPI DSI host
+ controller and MIPI DPHY PLL related configurations through PLL SoC
+ interface.
+
+ power-domains:
+ maxItems: 1
+
+required:
+ - compatible
+ - interrupts
+ - fsl,media-blk-ctrl
+ - power-domains
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/imx93-clock.h>
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/power/fsl,imx93-power.h>
+
+ dsi@4ae10000 {
+ compatible = "fsl,imx93-mipi-dsi";
+ reg = <0x4ae10000 0x10000>;
+ interrupts = <GIC_SPI 177 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clk IMX93_CLK_MIPI_DSI_GATE>,
+ <&clk IMX93_CLK_MEDIA_DISP_PIX>,
+ <&clk IMX93_CLK_MIPI_PHY_CFG>,
+ <&clk IMX93_CLK_24M>;
+ clock-names = "pclk", "pix", "phy_cfg", "phy_ref";
+ fsl,media-blk-ctrl = <&media_blk_ctrl>;
+ power-domains = <&media_blk_ctrl IMX93_MEDIABLK_PD_MIPI_DSI>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ panel@0 {
+ compatible = "raydium,rm67191";
+ reg = <0>;
+ reset-gpios = <&adp5585gpio 6 GPIO_ACTIVE_LOW>;
+ dsi-lanes = <4>;
+ video-mode = <2>;
+
+ port {
+ panel_in: endpoint {
+ remote-endpoint = <&dsi_out>;
+ };
+ };
+ };
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ dsi_to_lcdif: endpoint {
+ remote-endpoint = <&lcdif_to_dsi>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ dsi_out: endpoint {
+ remote-endpoint = <&panel_in>;
+ };
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/display/bridge/fsl,ldb.yaml b/Documentation/devicetree/bindings/display/bridge/fsl,ldb.yaml
index 6e0e3ba9b49e..07388bf2b90d 100644
--- a/Documentation/devicetree/bindings/display/bridge/fsl,ldb.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/fsl,ldb.yaml
@@ -17,6 +17,7 @@ description: |
properties:
compatible:
enum:
+ - fsl,imx6sx-ldb
- fsl,imx8mp-ldb
- fsl,imx93-ldb
@@ -64,7 +65,9 @@ allOf:
properties:
compatible:
contains:
- const: fsl,imx93-ldb
+ enum:
+ - fsl,imx6sx-ldb
+ - fsl,imx93-ldb
then:
properties:
ports:
diff --git a/Documentation/devicetree/bindings/display/bridge/ingenic,jz4780-hdmi.yaml b/Documentation/devicetree/bindings/display/bridge/ingenic,jz4780-hdmi.yaml
index 0b27df429bdc..84df3cf239d5 100644
--- a/Documentation/devicetree/bindings/display/bridge/ingenic,jz4780-hdmi.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/ingenic,jz4780-hdmi.yaml
@@ -26,6 +26,9 @@ properties:
clocks:
maxItems: 2
+ clock-names:
+ maxItems: 2
+
ports:
$ref: /schemas/graph.yaml#/properties/ports
diff --git a/Documentation/devicetree/bindings/display/bridge/ite,it6263.yaml b/Documentation/devicetree/bindings/display/bridge/ite,it6263.yaml
new file mode 100644
index 000000000000..b98d942bbe19
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/ite,it6263.yaml
@@ -0,0 +1,251 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/bridge/ite,it6263.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ITE IT6263 LVDS to HDMI converter
+
+maintainers:
+ - Liu Ying <victor.liu@nxp.com>
+
+description: |
+ The IT6263 is a high-performance single-chip De-SSC(De-Spread Spectrum) LVDS
+ to HDMI converter. Combined with LVDS receiver and HDMI 1.4a transmitter,
+ the IT6263 supports LVDS input and HDMI 1.4 output by conversion function.
+ The built-in LVDS receiver can support single-link and dual-link LVDS inputs,
+ and the built-in HDMI transmitter is fully compliant with HDMI 1.4a/3D, HDCP
+ 1.2 and backward compatible with DVI 1.0 specification.
+
+ The IT6263 also encodes and transmits up to 8 channels of I2S digital audio,
+ with sampling rate up to 192KHz and sample size up to 24 bits. In addition,
+ an S/PDIF input port takes in compressed audio of up to 192KHz frame rate.
+
+ The newly supported High-Bit Rate(HBR) audio by HDMI specifications v1.3 is
+ provided by the IT6263 in two interfaces: the four I2S input ports or the
+ S/PDIF input port. With both interfaces the highest possible HBR frame rate
+ is supported at up to 768KHz.
+
+allOf:
+ - $ref: /schemas/display/lvds-dual-ports.yaml#
+ - $ref: /schemas/sound/dai-common.yaml#
+
+properties:
+ compatible:
+ const: ite,it6263
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+ description: audio master clock
+
+ clock-names:
+ const: mclk
+
+ data-mapping:
+ enum:
+ - jeida-18
+ - jeida-24
+ - jeida-30
+ - vesa-24
+ - vesa-30
+
+ reset-gpios:
+ maxItems: 1
+
+ ivdd-supply:
+ description: 1.8V digital logic power
+
+ ovdd-supply:
+ description: 3.3V I/O pin power
+
+ txavcc18-supply:
+ description: 1.8V HDMI analog frontend power
+
+ txavcc33-supply:
+ description: 3.3V HDMI analog frontend power
+
+ pvcc1-supply:
+ description: 1.8V HDMI frontend core PLL power
+
+ pvcc2-supply:
+ description: 1.8V HDMI frontend filter PLL power
+
+ avcc-supply:
+ description: 3.3V LVDS frontend power
+
+ anvdd-supply:
+ description: 1.8V LVDS frontend analog power
+
+ apvdd-supply:
+ description: 1.8V LVDS frontend PLL power
+
+ "#sound-dai-cells":
+ const: 0
+
+ ite,i2s-audio-fifo-sources:
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ minItems: 1
+ maxItems: 4
+ items:
+ enum: [0, 1, 2, 3]
+ description:
+ Each array element indicates the pin number of an I2S serial data input
+ line which is connected to an audio FIFO, from audio FIFO0 to FIFO3.
+
+ ite,rl-channel-swap-audio-sources:
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ minItems: 1
+ maxItems: 4
+ uniqueItems: true
+ items:
+ enum: [0, 1, 2, 3]
+ description:
+ Each array element indicates an audio source whose right channel and left
+ channel are swapped by this converter. For I2S, the element is the pin
+ number of an I2S serial data input line. For S/PDIF, the element is always
+ 0.
+
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+
+ properties:
+ port@0: true
+
+ port@1:
+ oneOf:
+ - required: [dual-lvds-odd-pixels]
+ - required: [dual-lvds-even-pixels]
+
+ port@2:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: video port for the HDMI output
+
+ port@3:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: sound input port
+
+ required:
+ - port@0
+ - port@2
+
+required:
+ - compatible
+ - reg
+ - data-mapping
+ - ivdd-supply
+ - ovdd-supply
+ - txavcc18-supply
+ - txavcc33-supply
+ - pvcc1-supply
+ - pvcc2-supply
+ - avcc-supply
+ - anvdd-supply
+ - apvdd-supply
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ /* single-link LVDS input */
+ #include <dt-bindings/gpio/gpio.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ hdmi@4c {
+ compatible = "ite,it6263";
+ reg = <0x4c>;
+ data-mapping = "jeida-24";
+ reset-gpios = <&gpio1 10 GPIO_ACTIVE_LOW>;
+ ivdd-supply = <&reg_buck5>;
+ ovdd-supply = <&reg_vext_3v3>;
+ txavcc18-supply = <&reg_buck5>;
+ txavcc33-supply = <&reg_vext_3v3>;
+ pvcc1-supply = <&reg_buck5>;
+ pvcc2-supply = <&reg_buck5>;
+ avcc-supply = <&reg_vext_3v3>;
+ anvdd-supply = <&reg_buck5>;
+ apvdd-supply = <&reg_buck5>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ it6263_lvds_link1: endpoint {
+ remote-endpoint = <&ldb_lvds_ch0>;
+ };
+ };
+
+ port@2 {
+ reg = <2>;
+
+ it6263_out: endpoint {
+ remote-endpoint = <&hdmi_in>;
+ };
+ };
+ };
+ };
+ };
+
+ - |
+ /* dual-link LVDS input */
+ #include <dt-bindings/gpio/gpio.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ hdmi@4c {
+ compatible = "ite,it6263";
+ reg = <0x4c>;
+ data-mapping = "jeida-24";
+ reset-gpios = <&gpio1 10 GPIO_ACTIVE_LOW>;
+ ivdd-supply = <&reg_buck5>;
+ ovdd-supply = <&reg_vext_3v3>;
+ txavcc18-supply = <&reg_buck5>;
+ txavcc33-supply = <&reg_vext_3v3>;
+ pvcc1-supply = <&reg_buck5>;
+ pvcc2-supply = <&reg_buck5>;
+ avcc-supply = <&reg_vext_3v3>;
+ anvdd-supply = <&reg_buck5>;
+ apvdd-supply = <&reg_buck5>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ dual-lvds-odd-pixels;
+
+ it6263_lvds_link1_dual: endpoint {
+ remote-endpoint = <&ldb_lvds_ch0>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ dual-lvds-even-pixels;
+
+ it6263_lvds_link2_dual: endpoint {
+ remote-endpoint = <&ldb_lvds_ch1>;
+ };
+ };
+
+ port@2 {
+ reg = <2>;
+
+ it6263_out_dual: endpoint {
+ remote-endpoint = <&hdmi_in>;
+ };
+ };
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/display/bridge/ite,it6505.yaml b/Documentation/devicetree/bindings/display/bridge/ite,it6505.yaml
index c9a882ee6d98..c4469f463978 100644
--- a/Documentation/devicetree/bindings/display/bridge/ite,it6505.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/ite,it6505.yaml
@@ -9,6 +9,9 @@ title: ITE it6505
maintainers:
- Allen Chen <allen.chen@ite.com.tw>
+allOf:
+ - $ref: /schemas/sound/dai-common.yaml#
+
description: |
The IT6505 is a high-performance DisplayPort 1.1a transmitter,
fully compliant with DisplayPort 1.1a, HDCP 1.3 specifications.
@@ -52,6 +55,9 @@ properties:
maxItems: 1
description: extcon specifier for the Power Delivery
+ "#sound-dai-cells":
+ const: 0
+
ports:
$ref: /schemas/graph.yaml#/properties/ports
@@ -105,7 +111,7 @@ required:
- extcon
- ports
-additionalProperties: false
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/display/bridge/ite,it66121.yaml b/Documentation/devicetree/bindings/display/bridge/ite,it66121.yaml
index a7eb2603691f..17d1f97ce8c2 100644
--- a/Documentation/devicetree/bindings/display/bridge/ite,it66121.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/ite,it66121.yaml
@@ -19,6 +19,7 @@ properties:
compatible:
enum:
- ite,it66121
+ - ite,it66122
- ite,it6610
reg:
@@ -84,7 +85,10 @@ required:
- interrupts
- ports
-additionalProperties: false
+allOf:
+ - $ref: /schemas/sound/dai-common.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/display/bridge/lontium,lt8912b.yaml b/Documentation/devicetree/bindings/display/bridge/lontium,lt8912b.yaml
index f201ae4af4fb..2cef25215798 100644
--- a/Documentation/devicetree/bindings/display/bridge/lontium,lt8912b.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/lontium,lt8912b.yaml
@@ -55,6 +55,27 @@ properties:
- port@0
- port@1
+ vcchdmipll-supply:
+ description: A 1.8V supply that powers the HDMI PLL.
+
+ vcchdmitx-supply:
+ description: A 1.8V supply that powers the HDMI TX part.
+
+ vcclvdspll-supply:
+ description: A 1.8V supply that powers the LVDS PLL.
+
+ vcclvdstx-supply:
+ description: A 1.8V supply that powers the LVDS TX part.
+
+ vccmipirx-supply:
+ description: A 1.8V supply that powers the MIPI RX part.
+
+ vccsysclk-supply:
+ description: A 1.8V supply that powers the SYSCLK.
+
+ vdd-supply:
+ description: A 1.8V supply that powers the digital part.
+
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/display/bridge/lontium,lt9611.yaml b/Documentation/devicetree/bindings/display/bridge/lontium,lt9611.yaml
index 5b9d36f7af30..655db8cfdc25 100644
--- a/Documentation/devicetree/bindings/display/bridge/lontium,lt9611.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/lontium,lt9611.yaml
@@ -69,7 +69,10 @@ required:
- vcc-supply
- ports
-additionalProperties: false
+allOf:
+ - $ref: /schemas/sound/dai-common.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/display/bridge/lvds-codec.yaml b/Documentation/devicetree/bindings/display/bridge/lvds-codec.yaml
index 84aafcbf0919..4f7d3e9cf0c2 100644
--- a/Documentation/devicetree/bindings/display/bridge/lvds-codec.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/lvds-codec.yaml
@@ -41,6 +41,8 @@ properties:
- enum:
- ti,ds90cf364a # For the DS90CF364A FPD-Link LVDS Receiver
- ti,ds90cf384a # For the DS90CF384A FPD-Link LVDS Receiver
+ - ti,sn65lvds822 # For the SN65LVDS822 FlatLink LVDS Receiver
+ - ti,sn65lvds94 # For the SN65DS94 LVDS serdes
- const: lvds-decoder # Generic LVDS decoders compatible fallback
- enum:
- thine,thc63lvdm83d # For the THC63LVDM83D LVDS serializer
@@ -129,7 +131,6 @@ required:
additionalProperties: false
-
examples:
- |
lvds-encoder {
diff --git a/Documentation/devicetree/bindings/display/bridge/megachips,stdp2690-ge-b850v3-fw.yaml b/Documentation/devicetree/bindings/display/bridge/megachips,stdp2690-ge-b850v3-fw.yaml
new file mode 100644
index 000000000000..dfa6ff6f115e
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/megachips,stdp2690-ge-b850v3-fw.yaml
@@ -0,0 +1,111 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/bridge/megachips,stdp2690-ge-b850v3-fw.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: GE B850v3 video bridge
+
+maintainers:
+ - Frank Li <Frank.Li@nxp.com>
+
+description: |
+ STDP4028-ge-b850v3-fw bridges (LVDS-DP)
+ STDP2690-ge-b850v3-fw bridges (DP-DP++)
+
+ The video processing pipeline on the second output on the GE B850v3:
+
+ Host -> LVDS|--(STDP4028)--|DP -> DP|--(STDP2690)--|DP++ -> Video output
+
+ Each bridge has a dedicated flash containing firmware for supporting the custom
+ design. The result is that, in this design, neither the STDP4028 nor the
+ STDP2690 behave as the stock bridges would. The compatible strings include the
+ suffix "-ge-b850v3-fw" to make it clear that the driver is for the bridges with
+ the firmware specific for the GE B850v3.
+
+ The hardware do not provide control over the video processing pipeline, as the
+ two bridges behaves as a single one. The only interfaces exposed by the
+ hardware are EDID, HPD, and interrupts.
+
+properties:
+ compatible:
+ enum:
+ - megachips,stdp4028-ge-b850v3-fw
+ - megachips,stdp2690-ge-b850v3-fw
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+ properties:
+ port@0:
+ description: sink port
+ $ref: /schemas/graph.yaml#/properties/port
+
+ port@1:
+ description: source port
+ $ref: /schemas/graph.yaml#/properties/port
+
+ required:
+ - port@0
+ - port@1
+
+required:
+ - compatible
+ - reg
+ - ports
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: megachips,stdp4028-ge-b850v3-fw
+ then:
+ required:
+ - interrupts
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ bridge@73 {
+ compatible = "megachips,stdp4028-ge-b850v3-fw";
+ reg = <0x73>;
+ interrupt-parent = <&gpio2>;
+ interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ endpoint {
+ remote-endpoint = <&lvds0_out>;
+ };
+
+ };
+
+ port@1 {
+ reg = <1>;
+
+ endpoint {
+ remote-endpoint = <&stdp2690_in>;
+ };
+ };
+ };
+ };
+ };
+
diff --git a/Documentation/devicetree/bindings/display/bridge/megachips-stdpxxxx-ge-b850v3-fw.txt b/Documentation/devicetree/bindings/display/bridge/megachips-stdpxxxx-ge-b850v3-fw.txt
deleted file mode 100644
index 09e0a21f705e..000000000000
--- a/Documentation/devicetree/bindings/display/bridge/megachips-stdpxxxx-ge-b850v3-fw.txt
+++ /dev/null
@@ -1,91 +0,0 @@
-Drivers for the second video output of the GE B850v3:
- STDP4028-ge-b850v3-fw bridges (LVDS-DP)
- STDP2690-ge-b850v3-fw bridges (DP-DP++)
-
-The video processing pipeline on the second output on the GE B850v3:
-
- Host -> LVDS|--(STDP4028)--|DP -> DP|--(STDP2690)--|DP++ -> Video output
-
-Each bridge has a dedicated flash containing firmware for supporting the custom
-design. The result is that, in this design, neither the STDP4028 nor the
-STDP2690 behave as the stock bridges would. The compatible strings include the
-suffix "-ge-b850v3-fw" to make it clear that the driver is for the bridges with
-the firmware specific for the GE B850v3.
-
-The hardware do not provide control over the video processing pipeline, as the
-two bridges behaves as a single one. The only interfaces exposed by the
-hardware are EDID, HPD, and interrupts.
-
-stdp4028-ge-b850v3-fw required properties:
- - compatible : "megachips,stdp4028-ge-b850v3-fw"
- - reg : I2C bus address
- - interrupts : one interrupt should be described here, as in
- <0 IRQ_TYPE_LEVEL_HIGH>
- - ports : One input port(reg = <0>) and one output port(reg = <1>)
-
-stdp2690-ge-b850v3-fw required properties:
- compatible : "megachips,stdp2690-ge-b850v3-fw"
- - reg : I2C bus address
- - ports : One input port(reg = <0>) and one output port(reg = <1>)
-
-Example:
-
-&mux2_i2c2 {
- clock-frequency = <100000>;
-
- stdp4028@73 {
- compatible = "megachips,stdp4028-ge-b850v3-fw";
- #address-cells = <1>;
- #size-cells = <0>;
-
- reg = <0x73>;
-
- interrupt-parent = <&gpio2>;
- interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
-
- ports {
- #address-cells = <1>;
- #size-cells = <0>;
-
- port@0 {
- reg = <0>;
- stdp4028_in: endpoint {
- remote-endpoint = <&lvds0_out>;
- };
- };
- port@1 {
- reg = <1>;
- stdp4028_out: endpoint {
- remote-endpoint = <&stdp2690_in>;
- };
- };
- };
- };
-
- stdp2690@72 {
- compatible = "megachips,stdp2690-ge-b850v3-fw";
- #address-cells = <1>;
- #size-cells = <0>;
-
- reg = <0x72>;
-
- ports {
- #address-cells = <1>;
- #size-cells = <0>;
-
- port@0 {
- reg = <0>;
- stdp2690_in: endpoint {
- remote-endpoint = <&stdp4028_out>;
- };
- };
-
- port@1 {
- reg = <1>;
- stdp2690_out: endpoint {
- /* Connector for external display */
- };
- };
- };
- };
-};
diff --git a/Documentation/devicetree/bindings/display/bridge/microchip,sam9x75-lvds.yaml b/Documentation/devicetree/bindings/display/bridge/microchip,sam9x75-lvds.yaml
new file mode 100644
index 000000000000..862ef441ac9f
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/microchip,sam9x75-lvds.yaml
@@ -0,0 +1,55 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/bridge/microchip,sam9x75-lvds.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip SAM9X75 LVDS Controller
+
+maintainers:
+ - Dharma Balasubiramani <dharma.b@microchip.com>
+
+description:
+ The Low Voltage Differential Signaling Controller (LVDSC) manages data
+ format conversion from the LCD Controller internal DPI bus to OpenLDI
+ LVDS output signals. LVDSC functions include bit mapping, balanced mode
+ management, and serializer.
+
+properties:
+ compatible:
+ const: microchip,sam9x75-lvds
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: Peripheral Bus Clock
+
+ clock-names:
+ items:
+ - const: pclk
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/clock/at91.h>
+ lvds-controller@f8060000 {
+ compatible = "microchip,sam9x75-lvds";
+ reg = <0xf8060000 0x100>;
+ interrupts = <56 IRQ_TYPE_LEVEL_HIGH 0>;
+ clocks = <&pmc PMC_TYPE_PERIPHERAL 56>;
+ clock-names = "pclk";
+ };
diff --git a/Documentation/devicetree/bindings/display/bridge/nwl-dsi.yaml b/Documentation/devicetree/bindings/display/bridge/nwl-dsi.yaml
index 350fb8f400f0..5952e6448ed4 100644
--- a/Documentation/devicetree/bindings/display/bridge/nwl-dsi.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/nwl-dsi.yaml
@@ -111,11 +111,27 @@ properties:
unevaluatedProperties: false
port@1:
- $ref: /schemas/graph.yaml#/properties/port
+ $ref: /schemas/graph.yaml#/$defs/port-base
+ unevaluatedProperties: false
description:
DSI output port node to the panel or the next bridge
in the chain
+ properties:
+ endpoint:
+ $ref: /schemas/media/video-interfaces.yaml#
+ unevaluatedProperties: false
+
+ properties:
+ data-lanes:
+ description: array of physical DSI data lane indexes.
+ minItems: 1
+ items:
+ - const: 1
+ - const: 2
+ - const: 3
+ - const: 4
+
required:
- port@0
- port@1
diff --git a/Documentation/devicetree/bindings/display/bridge/nxp,tda998x.yaml b/Documentation/devicetree/bindings/display/bridge/nxp,tda998x.yaml
index c4bf54397473..3fce9e698ea1 100644
--- a/Documentation/devicetree/bindings/display/bridge/nxp,tda998x.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/nxp,tda998x.yaml
@@ -20,6 +20,7 @@ properties:
maxItems: 1
video-ports:
+ $ref: /schemas/types.yaml#/definitions/uint32
default: 0x230145
maximum: 0xffffff
description:
@@ -28,19 +29,22 @@ properties:
audio-ports:
description:
- Array of 8-bit values, 2 values per DAI (Documentation/sound/soc/dai.rst).
+ Array of 2 values per DAI (Documentation/sound/soc/dai.rst).
The implementation allows one or two DAIs.
If two DAIs are defined, they must be of different type.
$ref: /schemas/types.yaml#/definitions/uint32-matrix
+ minItems: 1
+ maxItems: 2
items:
- minItems: 1
items:
- description: |
The first value defines the DAI type: TDA998x_SPDIF or TDA998x_I2S
(see include/dt-bindings/display/tda998x.h).
+ enum: [ 1, 2 ]
- description:
The second value defines the tda998x AP_ENA reg content when the
DAI in question is used.
+ maximum: 0xff
'#sound-dai-cells':
enum: [ 0, 1 ]
@@ -77,7 +81,10 @@ oneOf:
- required:
- ports
-additionalProperties: false
+allOf:
+ - $ref: /schemas/sound/dai-common.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/display/bridge/parade,ps8622.yaml b/Documentation/devicetree/bindings/display/bridge/parade,ps8622.yaml
index e6397ac2048b..235018a81e85 100644
--- a/Documentation/devicetree/bindings/display/bridge/parade,ps8622.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/parade,ps8622.yaml
@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Parade PS8622/PS8625 DisplayPort to LVDS Converter
maintainers:
- - Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
+ - Krzysztof Kozlowski <krzk@kernel.org>
properties:
compatible:
diff --git a/Documentation/devicetree/bindings/display/bridge/renesas,dsi-csi2-tx.yaml b/Documentation/devicetree/bindings/display/bridge/renesas,dsi-csi2-tx.yaml
index d33026f85e19..b95f10edd3a2 100644
--- a/Documentation/devicetree/bindings/display/bridge/renesas,dsi-csi2-tx.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/renesas,dsi-csi2-tx.yaml
@@ -14,11 +14,15 @@ description: |
R-Car Gen4 SoCs. The encoder can operate in either DSI or CSI-2 mode, with up
to four data lanes.
+allOf:
+ - $ref: /schemas/display/dsi-controller.yaml#
+
properties:
compatible:
enum:
- renesas,r8a779a0-dsi-csi2-tx # for V3U
- renesas,r8a779g0-dsi-csi2-tx # for V4H
+ - renesas,r8a779h0-dsi-csi2-tx # for V4M
reg:
maxItems: 1
@@ -79,14 +83,14 @@ required:
- resets
- ports
-additionalProperties: false
+unevaluatedProperties: false
examples:
- |
#include <dt-bindings/clock/r8a779a0-cpg-mssr.h>
#include <dt-bindings/power/r8a779a0-sysc.h>
- dsi0: dsi-encoder@fed80000 {
+ dsi@fed80000 {
compatible = "renesas,r8a779a0-dsi-csi2-tx";
reg = <0xfed80000 0x10000>;
power-domains = <&sysc R8A779A0_PD_ALWAYS_ON>;
@@ -116,4 +120,51 @@ examples:
};
};
};
+
+ - |
+ #include <dt-bindings/clock/r8a779g0-cpg-mssr.h>
+ #include <dt-bindings/power/r8a779g0-sysc.h>
+
+ dsi@fed80000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "renesas,r8a779g0-dsi-csi2-tx";
+ reg = <0xfed80000 0x10000>;
+ clocks = <&cpg CPG_MOD 415>,
+ <&cpg CPG_CORE R8A779G0_CLK_DSIEXT>,
+ <&cpg CPG_CORE R8A779G0_CLK_DSIREF>;
+ clock-names = "fck", "dsi", "pll";
+ power-domains = <&sysc R8A779G0_PD_ALWAYS_ON>;
+ resets = <&cpg 415>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ };
+
+ port@1 {
+ reg = <1>;
+
+ dsi0port1_out: endpoint {
+ remote-endpoint = <&panel_in>;
+ data-lanes = <1 2>;
+ };
+ };
+ };
+
+ panel@0 {
+ reg = <0>;
+ compatible = "raspberrypi,dsi-7inch", "ilitek,ili9881c";
+ power-supply = <&vcc_lcd_reg>;
+
+ port {
+ panel_in: endpoint {
+ remote-endpoint = <&dsi0port1_out>;
+ };
+ };
+ };
+ };
...
diff --git a/Documentation/devicetree/bindings/display/bridge/renesas,dsi.yaml b/Documentation/devicetree/bindings/display/bridge/renesas,dsi.yaml
index e08c24633926..5a99d9b9635e 100644
--- a/Documentation/devicetree/bindings/display/bridge/renesas,dsi.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/renesas,dsi.yaml
@@ -128,7 +128,7 @@ required:
- power-domains
- ports
-additionalProperties: false
+unevaluatedProperties: false
examples:
- |
@@ -180,4 +180,69 @@ examples:
};
};
};
+
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ dsi1: dsi@10860000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "renesas,r9a07g044-mipi-dsi", "renesas,rzg2l-mipi-dsi";
+ reg = <0x10860000 0x20000>;
+ interrupts = <GIC_SPI 142 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 143 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 144 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 145 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 146 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 147 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 148 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "seq0", "seq1", "vin1", "rcv",
+ "ferr", "ppi", "debug";
+ clocks = <&cpg CPG_MOD R9A07G044_MIPI_DSI_PLLCLK>,
+ <&cpg CPG_MOD R9A07G044_MIPI_DSI_SYSCLK>,
+ <&cpg CPG_MOD R9A07G044_MIPI_DSI_ACLK>,
+ <&cpg CPG_MOD R9A07G044_MIPI_DSI_PCLK>,
+ <&cpg CPG_MOD R9A07G044_MIPI_DSI_VCLK>,
+ <&cpg CPG_MOD R9A07G044_MIPI_DSI_LPCLK>;
+ clock-names = "pllclk", "sysclk", "aclk", "pclk", "vclk", "lpclk";
+ resets = <&cpg R9A07G044_MIPI_DSI_CMN_RSTB>,
+ <&cpg R9A07G044_MIPI_DSI_ARESET_N>,
+ <&cpg R9A07G044_MIPI_DSI_PRESET_N>;
+ reset-names = "rst", "arst", "prst";
+ power-domains = <&cpg>;
+
+ panel@0 {
+ compatible = "rocktech,jh057n00900";
+ reg = <0>;
+ vcc-supply = <&reg_2v8_p>;
+ iovcc-supply = <&reg_1v8_p>;
+ reset-gpios = <&gpio3 13 GPIO_ACTIVE_LOW>;
+
+ port {
+ panel_in: endpoint {
+ remote-endpoint = <&dsi1_out>;
+ };
+ };
+ };
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ dsi1_in: endpoint {
+ remote-endpoint = <&du_out_dsi1>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ dsi1_out: endpoint {
+ data-lanes = <1 2 3 4>;
+ remote-endpoint = <&panel_in>;
+ };
+ };
+ };
+ };
...
diff --git a/Documentation/devicetree/bindings/display/bridge/samsung,mipi-dsim.yaml b/Documentation/devicetree/bindings/display/bridge/samsung,mipi-dsim.yaml
index e841659e20cd..ad279f0993fa 100644
--- a/Documentation/devicetree/bindings/display/bridge/samsung,mipi-dsim.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/samsung,mipi-dsim.yaml
@@ -24,10 +24,13 @@ properties:
- samsung,exynos5410-mipi-dsi
- samsung,exynos5422-mipi-dsi
- samsung,exynos5433-mipi-dsi
+ - samsung,exynos7870-mipi-dsi
- fsl,imx8mm-mipi-dsim
- fsl,imx8mp-mipi-dsim
- items:
- - const: fsl,imx8mn-mipi-dsim
+ - enum:
+ - fsl,imx7d-mipi-dsim
+ - fsl,imx8mn-mipi-dsim
- const: fsl,imx8mm-mipi-dsim
reg:
@@ -70,7 +73,9 @@ properties:
samsung,burst-clock-frequency:
$ref: /schemas/types.yaml#/definitions/uint32
description:
- DSIM high speed burst mode frequency.
+ DSIM high speed burst mode frequency. If absent,
+ the pixel clock from the attached device or bridge
+ will be used instead.
samsung,esc-clock-frequency:
$ref: /schemas/types.yaml#/definitions/uint32
@@ -80,7 +85,8 @@ properties:
samsung,pll-clock-frequency:
$ref: /schemas/types.yaml#/definitions/uint32
description:
- DSIM oscillator clock frequency.
+ DSIM oscillator clock frequency. If absent, the clock frequency
+ of sclk_mipi will be used instead.
phys:
maxItems: 1
@@ -100,20 +106,42 @@ properties:
specified.
port@1:
- $ref: /schemas/graph.yaml#/properties/port
+ $ref: /schemas/graph.yaml#/$defs/port-base
+ unevaluatedProperties: false
description:
DSI output port node to the panel or the next bridge
in the chain.
+ properties:
+ endpoint:
+ $ref: /schemas/media/video-interfaces.yaml#
+ unevaluatedProperties: false
+
+ properties:
+ data-lanes:
+ minItems: 1
+ maxItems: 4
+ uniqueItems: true
+ items:
+ enum: [ 1, 2, 3, 4 ]
+
+ lane-polarities:
+ minItems: 1
+ maxItems: 5
+ description:
+ The Samsung MIPI DSI IP requires that all the data lanes have
+ the same polarity.
+
+ dependencies:
+ lane-polarities: [data-lanes]
+
required:
- clock-names
- clocks
- compatible
- interrupts
- reg
- - samsung,burst-clock-frequency
- samsung,esc-clock-frequency
- - samsung,pll-clock-frequency
allOf:
- $ref: ../dsi-controller.yaml#
@@ -121,6 +149,32 @@ allOf:
properties:
compatible:
contains:
+ const: samsung,exynos7870-mipi-dsi
+
+ then:
+ properties:
+ clocks:
+ minItems: 4
+ maxItems: 4
+
+ clock-names:
+ items:
+ - const: bus
+ - const: pll
+ - const: byte
+ - const: esc
+
+ ports:
+ required:
+ - port@0
+
+ required:
+ - ports
+
+ - if:
+ properties:
+ compatible:
+ contains:
const: samsung,exynos5433-mipi-dsi
then:
@@ -216,40 +270,40 @@ examples:
#include <dt-bindings/interrupt-controller/arm-gic.h>
dsi@13900000 {
- compatible = "samsung,exynos5433-mipi-dsi";
- reg = <0x13900000 0xC0>;
- interrupts = <GIC_SPI 205 IRQ_TYPE_LEVEL_HIGH>;
- phys = <&mipi_phy 1>;
- phy-names = "dsim";
- clocks = <&cmu_disp CLK_PCLK_DSIM0>,
- <&cmu_disp CLK_PHYCLK_MIPIDPHY0_BITCLKDIV8>,
- <&cmu_disp CLK_PHYCLK_MIPIDPHY0_RXCLKESC0>,
- <&cmu_disp CLK_SCLK_RGB_VCLK_TO_DSIM0>,
- <&cmu_disp CLK_SCLK_DSIM0>;
- clock-names = "bus_clk",
- "phyclk_mipidphy0_bitclkdiv8",
- "phyclk_mipidphy0_rxclkesc0",
- "sclk_rgb_vclk_to_dsim0",
- "sclk_mipi";
- power-domains = <&pd_disp>;
- vddcore-supply = <&ldo6_reg>;
- vddio-supply = <&ldo7_reg>;
- samsung,burst-clock-frequency = <512000000>;
- samsung,esc-clock-frequency = <16000000>;
- samsung,pll-clock-frequency = <24000000>;
- pinctrl-names = "default";
- pinctrl-0 = <&te_irq>;
-
- ports {
- #address-cells = <1>;
- #size-cells = <0>;
-
- port@0 {
- reg = <0>;
-
- dsi_to_mic: endpoint {
- remote-endpoint = <&mic_to_dsi>;
- };
- };
- };
+ compatible = "samsung,exynos5433-mipi-dsi";
+ reg = <0x13900000 0xC0>;
+ interrupts = <GIC_SPI 205 IRQ_TYPE_LEVEL_HIGH>;
+ phys = <&mipi_phy 1>;
+ phy-names = "dsim";
+ clocks = <&cmu_disp CLK_PCLK_DSIM0>,
+ <&cmu_disp CLK_PHYCLK_MIPIDPHY0_BITCLKDIV8>,
+ <&cmu_disp CLK_PHYCLK_MIPIDPHY0_RXCLKESC0>,
+ <&cmu_disp CLK_SCLK_RGB_VCLK_TO_DSIM0>,
+ <&cmu_disp CLK_SCLK_DSIM0>;
+ clock-names = "bus_clk",
+ "phyclk_mipidphy0_bitclkdiv8",
+ "phyclk_mipidphy0_rxclkesc0",
+ "sclk_rgb_vclk_to_dsim0",
+ "sclk_mipi";
+ power-domains = <&pd_disp>;
+ vddcore-supply = <&ldo6_reg>;
+ vddio-supply = <&ldo7_reg>;
+ samsung,burst-clock-frequency = <512000000>;
+ samsung,esc-clock-frequency = <16000000>;
+ samsung,pll-clock-frequency = <24000000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&te_irq>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ dsi_to_mic: endpoint {
+ remote-endpoint = <&mic_to_dsi>;
+ };
+ };
+ };
};
diff --git a/Documentation/devicetree/bindings/display/bridge/sil,sii8620.yaml b/Documentation/devicetree/bindings/display/bridge/sil,sii8620.yaml
index 6d1a36b76fcb..a5fe46de3535 100644
--- a/Documentation/devicetree/bindings/display/bridge/sil,sii8620.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/sil,sii8620.yaml
@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Silicon Image SiI8620 HDMI/MHL bridge
maintainers:
- - Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
+ - Krzysztof Kozlowski <krzk@kernel.org>
properties:
compatible:
diff --git a/Documentation/devicetree/bindings/display/bridge/sil,sii9022.yaml b/Documentation/devicetree/bindings/display/bridge/sil,sii9022.yaml
index 5a69547ad3d7..17ea06719b56 100644
--- a/Documentation/devicetree/bindings/display/bridge/sil,sii9022.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/sil,sii9022.yaml
@@ -81,9 +81,22 @@ properties:
properties:
port@0:
- $ref: /schemas/graph.yaml#/properties/port
+ unevaluatedProperties: false
+ $ref: /schemas/graph.yaml#/$defs/port-base
description: Parallel RGB input port
+ properties:
+ endpoint:
+ $ref: /schemas/graph.yaml#/$defs/endpoint-base
+ unevaluatedProperties: false
+
+ properties:
+ bus-width:
+ description:
+ Endpoint bus width.
+ enum: [ 16, 18, 24 ]
+ default: 24
+
port@1:
$ref: /schemas/graph.yaml#/properties/port
description: HDMI output port
@@ -96,7 +109,10 @@ required:
- compatible
- reg
-additionalProperties: false
+allOf:
+ - $ref: /schemas/sound/dai-common.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/display/bridge/simple-bridge.yaml b/Documentation/devicetree/bindings/display/bridge/simple-bridge.yaml
index 43cf4df9811a..20c7e0a77802 100644
--- a/Documentation/devicetree/bindings/display/bridge/simple-bridge.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/simple-bridge.yaml
@@ -27,7 +27,11 @@ properties:
- const: adi,adv7123
- enum:
- adi,adv7123
+ - asl-tek,cs5263
- dumb-vga-dac
+ - parade,ps185hdm
+ - radxa,ra620
+ - realtek,rtd2171
- ti,opa362
- ti,ths8134
- ti,ths8135
diff --git a/Documentation/devicetree/bindings/display/bridge/snps,dw-mipi-dsi.yaml b/Documentation/devicetree/bindings/display/bridge/snps,dw-mipi-dsi.yaml
index 0b51c64f141a..8747b95ec20d 100644
--- a/Documentation/devicetree/bindings/display/bridge/snps,dw-mipi-dsi.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/snps,dw-mipi-dsi.yaml
@@ -11,7 +11,7 @@ maintainers:
description: |
This document defines device tree properties for the Synopsys DesignWare MIPI
- DSI host controller. It doesn't constitue a device tree binding specification
+ DSI host controller. It doesn't constitute a device tree binding specification
by itself but is meant to be referenced by platform-specific device tree
bindings.
diff --git a/Documentation/devicetree/bindings/display/bridge/solomon,ssd2825.yaml b/Documentation/devicetree/bindings/display/bridge/solomon,ssd2825.yaml
new file mode 100644
index 000000000000..e2d293d623b8
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/solomon,ssd2825.yaml
@@ -0,0 +1,141 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/bridge/solomon,ssd2825.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Solomon SSD2825 RGB to MIPI-DSI bridge
+
+maintainers:
+ - Svyatoslav Ryhel <clamor95@gmail.com>
+
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+properties:
+ compatible:
+ const: solomon,ssd2825
+
+ reg:
+ maxItems: 1
+
+ reset-gpios: true
+
+ dvdd-supply:
+ description: Regulator for 1.2V digital power supply.
+
+ avdd-supply:
+ description: Regulator for 1.2V analog power supply.
+
+ vddio-supply:
+ description: Regulator for 1.8V IO power supply.
+
+ spi-max-frequency:
+ maximum: 1000000
+
+ spi-cpha: true
+ spi-cpol: true
+
+ clocks:
+ maxItems: 1
+ description: Reference TX_CLK used before PLL is locked.
+
+ solomon,hs-zero-delay-ns:
+ description:
+ HS zero delay period
+ minimum: 0
+ maximum: 1700
+ default: 133
+
+ solomon,hs-prep-delay-ns:
+ description:
+ HS prep delay period
+ minimum: 0
+ maximum: 1728
+ default: 40
+
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+
+ properties:
+ port@0:
+ $ref: /schemas/graph.yaml#/$defs/port-base
+ unevaluatedProperties: false
+ description:
+ Video port for RGB input
+
+ properties:
+ endpoint:
+ $ref: /schemas/graph.yaml#/$defs/endpoint-base
+ unevaluatedProperties: false
+
+ properties:
+ bus-width:
+ enum: [ 16, 18, 24 ]
+
+ port@1:
+ $ref: /schemas/graph.yaml#/properties/port
+ description:
+ Video port for DSI output (panel or connector)
+
+ required:
+ - port@0
+ - port@1
+
+required:
+ - compatible
+ - ports
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ dsi@2 {
+ compatible = "solomon,ssd2825";
+ reg = <2>;
+
+ spi-max-frequency = <1000000>;
+
+ spi-cpha;
+ spi-cpol;
+
+ reset-gpios = <&gpio 114 GPIO_ACTIVE_LOW>;
+
+ dvdd-supply = <&vdd_1v2>;
+ avdd-supply = <&vdd_1v2>;
+ vddio-supply = <&vdd_1v8_io>;
+
+ solomon,hs-zero-delay-ns = <300>;
+ solomon,hs-prep-delay-ns = <65>;
+
+ clocks = <&ssd2825_tx_clk>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ bridge_input: endpoint {
+ remote-endpoint = <&dpi_output>;
+ bus-width = <24>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ bridge_output: endpoint {
+ remote-endpoint = <&panel_input>;
+ };
+ };
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/display/bridge/synopsys,dw-hdmi.yaml b/Documentation/devicetree/bindings/display/bridge/synopsys,dw-hdmi.yaml
index 4b7e54a8f037..33481381cccc 100644
--- a/Documentation/devicetree/bindings/display/bridge/synopsys,dw-hdmi.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/synopsys,dw-hdmi.yaml
@@ -45,6 +45,19 @@ properties:
- const: isfr
additionalItems: true
+ ddc-i2c-bus:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ deprecated: true
+ description:
+ The HDMI DDC bus can be connected to either a system I2C master or the
+ functionally-reduced I2C master contained in the DWC HDMI. When connected
+ to a system I2C master this property contains a phandle to that I2C
+ master controller.
+
+ This property is deprecated, the system I2C master controller should
+ be referenced through the ddc-i2c-bus property of the HDMI connector
+ node.
+
interrupts:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi83.yaml b/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi83.yaml
index 48a97bb3e2e0..e69b6343a8eb 100644
--- a/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi83.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi83.yaml
@@ -35,6 +35,9 @@ properties:
vcc-supply:
description: A 1.8V power supply (see regulator/regulator.yaml).
+ interrupts:
+ maxItems: 1
+
ports:
$ref: /schemas/graph.yaml#/properties/ports
@@ -80,12 +83,12 @@ properties:
- const: 4
port@2:
- $ref: /schemas/graph.yaml#/properties/port
description: Video port for LVDS Channel-A output (panel or bridge).
+ $ref: '#/$defs/lvds-port'
port@3:
- $ref: /schemas/graph.yaml#/properties/port
description: Video port for LVDS Channel-B output (panel or bridge).
+ $ref: '#/$defs/lvds-port'
required:
- port@0
@@ -96,6 +99,32 @@ required:
- reg
- ports
+$defs:
+ lvds-port:
+ $ref: /schemas/graph.yaml#/$defs/port-base
+ unevaluatedProperties: false
+
+ properties:
+ endpoint:
+ $ref: /schemas/media/video-interfaces.yaml#
+ unevaluatedProperties: false
+
+ properties:
+ ti,lvds-termination-ohms:
+ description: The value of near end differential termination in ohms.
+ enum: [100, 200]
+ default: 200
+
+ ti,lvds-vod-swing-clock-microvolt:
+ description: LVDS diferential output voltage <min max> for clock
+ lanes in microvolts.
+ maxItems: 2
+
+ ti,lvds-vod-swing-data-microvolt:
+ description: LVDS diferential output voltage <min max> for data
+ lanes in microvolts.
+ maxItems: 2
+
allOf:
- if:
properties:
diff --git a/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi86.yaml b/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi86.yaml
index 6ec6d287bff4..c93878b6d718 100644
--- a/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi86.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi86.yaml
@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: SN65DSI86 DSI to eDP bridge chip
maintainers:
- - Sandeep Panda <spanda@codeaurora.org>
+ - Douglas Anderson <dianders@chromium.org>
description: |
The Texas Instruments SN65DSI86 bridge takes MIPI DSI in and outputs eDP.
diff --git a/Documentation/devicetree/bindings/display/bridge/ti,tdp158.yaml b/Documentation/devicetree/bindings/display/bridge/ti,tdp158.yaml
new file mode 100644
index 000000000000..721da44054e1
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/ti,tdp158.yaml
@@ -0,0 +1,58 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/bridge/ti,tdp158.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TI TDP158 HDMI to TMDS Redriver
+
+maintainers:
+ - Arnaud Vrac <avrac@freebox.fr>
+ - Pierre-Hugues Husson <phhusson@freebox.fr>
+
+properties:
+ compatible:
+ const: ti,tdp158
+
+# The reg property is required if and only if the device is connected
+# to an I2C bus. In pin strap mode, reg must not be specified.
+ reg:
+ maxItems: 1
+ description: I2C address of the device
+
+# Pin 36 = Operation Enable / Reset Pin
+# OE = L: Power Down Mode
+# OE = H: Normal Operation
+# Internal weak pullup - device resets on H to L transitions
+ enable-gpios:
+ description: GPIO controlling bridge enable
+
+ vcc-supply:
+ description: Power supply 3.3V
+
+ vdd-supply:
+ description: Power supply 1.1V
+
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+
+ properties:
+ port@0:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: Bridge input
+
+ port@1:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: Bridge output
+
+ required:
+ - port@0
+ - port@1
+
+required:
+ - compatible
+ - vcc-supply
+ - vdd-supply
+ - ports
+
+additionalProperties: false
diff --git a/Documentation/devicetree/bindings/display/bridge/toshiba,tc358762.yaml b/Documentation/devicetree/bindings/display/bridge/toshiba,tc358762.yaml
index 81ca3cbc7abe..6c1de0b21722 100644
--- a/Documentation/devicetree/bindings/display/bridge/toshiba,tc358762.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/toshiba,tc358762.yaml
@@ -21,6 +21,9 @@ properties:
maxItems: 1
description: virtual channel number of a DSI peripheral
+ reset-gpios:
+ maxItems: 1
+
vddc-supply:
description: Regulator for 1.2V internal core power.
diff --git a/Documentation/devicetree/bindings/display/bridge/toshiba,tc358767.yaml b/Documentation/devicetree/bindings/display/bridge/toshiba,tc358767.yaml
index e1494b5007cb..70f229dc4e0c 100644
--- a/Documentation/devicetree/bindings/display/bridge/toshiba,tc358767.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/toshiba,tc358767.yaml
@@ -4,21 +4,29 @@
$id: http://devicetree.org/schemas/display/bridge/toshiba,tc358767.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Toshiba TC358767 eDP bridge
+title: Toshiba TC358767/TC358867/TC9595 DSI/DPI/eDP bridge
maintainers:
- Andrey Gusakov <andrey.gusakov@cogentembedded.com>
-description: The TC358767 is bridge device which converts DSI/DPI to eDP/DP
+description: |
+ The TC358767/TC358867/TC9595 is bridge device which
+ converts DSI/DPI to eDP/DP .
properties:
compatible:
- const: toshiba,tc358767
+ oneOf:
+ - items:
+ - enum:
+ - toshiba,tc358867
+ - toshiba,tc9595
+ - const: toshiba,tc358767
+ - const: toshiba,tc358767
reg:
enum:
- - 0x68
- 0x0f
+ - 0x68
description: |
i2c address of the bridge, 0x68 or 0x0f, depending on bootstrap pins
@@ -41,6 +49,9 @@ properties:
description: |
OF device-tree gpio specification for RSTX pin(active low system reset)
+ interrupts:
+ maxItems: 1
+
toshiba,hpd-pin:
$ref: /schemas/types.yaml#/definitions/uint32
enum:
@@ -81,19 +92,37 @@ properties:
reference to a valid DPI output or input endpoint node.
port@2:
- $ref: /schemas/graph.yaml#/properties/port
+ $ref: /schemas/graph.yaml#/$defs/port-base
+ unevaluatedProperties: false
description: |
eDP/DP output port. The remote endpoint phandle should be a
reference to a valid eDP panel input endpoint node. This port is
optional, treated as DP panel if not defined
+ properties:
+ endpoint:
+ $ref: /schemas/media/video-interfaces.yaml#
+ unevaluatedProperties: false
+
+ properties:
+ toshiba,pre-emphasis:
+ description:
+ Display port output Pre-Emphasis settings for both DP lanes.
+ $ref: /schemas/types.yaml#/definitions/uint8-array
+ minItems: 2
+ maxItems: 2
+ items:
+ enum:
+ - 0 # No pre-emphasis
+ - 1 # 3.5dB pre-emphasis
+ - 2 # 6dB pre-emphasis
+
oneOf:
- required:
- port@0
- required:
- port@1
-
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/display/bridge/toshiba,tc358768.yaml b/Documentation/devicetree/bindings/display/bridge/toshiba,tc358768.yaml
index 779d8c57f854..bb5d3b543800 100644
--- a/Documentation/devicetree/bindings/display/bridge/toshiba,tc358768.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/toshiba,tc358768.yaml
@@ -60,6 +60,10 @@ properties:
data-lines:
$ref: /schemas/types.yaml#/definitions/uint32
enum: [ 16, 18, 24 ]
+ deprecated: true
+
+ bus-width:
+ enum: [ 16, 18, 24 ]
port@1:
$ref: /schemas/graph.yaml#/properties/port
diff --git a/Documentation/devicetree/bindings/display/bridge/toshiba,tc358775.yaml b/Documentation/devicetree/bindings/display/bridge/toshiba,tc358775.yaml
index d879c700594a..258dd9cfd770 100644
--- a/Documentation/devicetree/bindings/display/bridge/toshiba,tc358775.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/toshiba,tc358775.yaml
@@ -10,7 +10,7 @@ maintainers:
- Vinay Simha BN <simhavcs@gmail.com>
description: |
- This binding supports DSI to LVDS bridge TC358775
+ This binding supports DSI to LVDS bridges TC358765 and TC358775
MIPI DSI-RX Data 4-lane, CLK 1-lane with data rates up to 800 Mbps/lane.
Video frame size:
@@ -21,7 +21,9 @@ description: |
properties:
compatible:
- const: toshiba,tc358775
+ enum:
+ - toshiba,tc358765
+ - toshiba,tc358775
reg:
maxItems: 1
@@ -46,11 +48,27 @@ properties:
properties:
port@0:
- $ref: /schemas/graph.yaml#/properties/port
+ $ref: /schemas/graph.yaml#/$defs/port-base
+ unevaluatedProperties: false
description: |
DSI Input. The remote endpoint phandle should be a
reference to a valid mipi_dsi_host device node.
+ properties:
+ endpoint:
+ $ref: /schemas/media/video-interfaces.yaml#
+ unevaluatedProperties: false
+
+ properties:
+ data-lanes:
+ description: array of physical DSI data lane indexes.
+ minItems: 1
+ items:
+ - const: 1
+ - const: 2
+ - const: 3
+ - const: 4
+
port@1:
$ref: /schemas/graph.yaml#/properties/port
description: |
@@ -70,10 +88,19 @@ required:
- reg
- vdd-supply
- vddio-supply
- - stby-gpios
- reset-gpios
- ports
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: toshiba,tc358765
+ then:
+ properties:
+ stby-gpios: false
+
additionalProperties: false
examples:
@@ -108,6 +135,7 @@ examples:
reg = <0>;
d2l_in_test: endpoint {
remote-endpoint = <&dsi0_out>;
+ data-lanes = <1 2 3 4>;
};
};
@@ -132,7 +160,6 @@ examples:
reg = <1>;
dsi0_out: endpoint {
remote-endpoint = <&d2l_in_test>;
- data-lanes = <0 1 2 3>;
};
};
};
@@ -167,6 +194,7 @@ examples:
reg = <0>;
d2l_in_dual: endpoint {
remote-endpoint = <&dsi0_out_dual>;
+ data-lanes = <1 2 3 4>;
};
};
@@ -198,7 +226,6 @@ examples:
reg = <1>;
dsi0_out_dual: endpoint {
remote-endpoint = <&d2l_in_dual>;
- data-lanes = <0 1 2 3>;
};
};
};
diff --git a/Documentation/devicetree/bindings/display/bridge/waveshare,dsi2dpi.yaml b/Documentation/devicetree/bindings/display/bridge/waveshare,dsi2dpi.yaml
new file mode 100644
index 000000000000..5e8498c8303d
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/waveshare,dsi2dpi.yaml
@@ -0,0 +1,103 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/bridge/waveshare,dsi2dpi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Waveshare MIPI-DSI to DPI Converter bridge
+
+maintainers:
+ - Joseph Guo <qijian.guo@nxp.com>
+
+description:
+ Waveshare bridge board is part of Waveshare panel which converts DSI to DPI.
+
+properties:
+ compatible:
+ const: waveshare,dsi2dpi
+
+ reg:
+ maxItems: 1
+ description: base I2C address of the device
+
+ power-supply: true
+
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+
+ properties:
+ port@0:
+ $ref: /schemas/graph.yaml#/$defs/port-base
+ unevaluatedProperties: false
+ description:
+ Video port for MIPI DSI input
+
+ properties:
+ endpoint:
+ $ref: /schemas/media/video-interfaces.yaml#
+ unevaluatedProperties: false
+
+ properties:
+ data-lanes:
+ description: array of physical DSI data lane indexes.
+ items:
+ - const: 1
+ - const: 2
+
+ required:
+ - data-lanes
+
+ port@1:
+ $ref: /schemas/graph.yaml#/properties/port
+ description:
+ Video port for MIPI DPI output panel.
+
+ required:
+ - port@0
+ - port@1
+
+required:
+ - compatible
+ - reg
+ - ports
+ - power-supply
+
+additionalProperties: false
+
+examples:
+ - |
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ bridge@45 {
+ compatible = "waveshare,dsi2dpi";
+ reg = <0x45>;
+ power-supply = <&reg_3p3v>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ waveshare_from_dsim: endpoint {
+ data-lanes = <1 2>;
+ remote-endpoint = <&dsim_to_waveshare>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ waveshare_to_panel: endpoint {
+ remote-endpoint = <&panel_to_waveshare>;
+ };
+ };
+ };
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/display/cirrus,clps711x-fb.txt b/Documentation/devicetree/bindings/display/cirrus,clps711x-fb.txt
index 0ab5f0663611..84c75f849891 100644
--- a/Documentation/devicetree/bindings/display/cirrus,clps711x-fb.txt
+++ b/Documentation/devicetree/bindings/display/cirrus,clps711x-fb.txt
@@ -1,4 +1,4 @@
-* Currus Logic CLPS711X Framebuffer
+* Cirrus Logic CLPS711X Framebuffer
Required properties:
- compatible: Shall contain "cirrus,ep7209-fb".
diff --git a/Documentation/devicetree/bindings/display/connector/dp-connector.yaml b/Documentation/devicetree/bindings/display/connector/dp-connector.yaml
index 22792a79e7ce..1f2b449dc910 100644
--- a/Documentation/devicetree/bindings/display/connector/dp-connector.yaml
+++ b/Documentation/devicetree/bindings/display/connector/dp-connector.yaml
@@ -31,10 +31,32 @@ properties:
$ref: /schemas/graph.yaml#/properties/port
description: Connection to controller providing DP signals
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+ description: OF graph representation of signales routed to DP connector
+
+ properties:
+ port@0:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: Connection to controller providing DP signals
+
+ port@1:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: Connection to controller providing AUX signals
+
+ required:
+ - port@0
+ - port@1
+
required:
- compatible
- type
- - port
+
+oneOf:
+ - required:
+ - port
+ - required:
+ - ports
additionalProperties: false
@@ -52,4 +74,32 @@ examples:
};
};
+ - |
+ /* DP connecttor being driven by the USB+DP combo PHY */
+ connector {
+ compatible = "dp-connector";
+ label = "dp0";
+ type = "full-size";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ endpoint {
+ remote-endpoint = <&phy_ss_out>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ endpoint {
+ remote-endpoint = <&phy_sbu_out>;
+ };
+ };
+ };
+ };
...
diff --git a/Documentation/devicetree/bindings/display/connector/hdmi-connector.yaml b/Documentation/devicetree/bindings/display/connector/hdmi-connector.yaml
index 83c0d008265b..3ee8f9225984 100644
--- a/Documentation/devicetree/bindings/display/connector/hdmi-connector.yaml
+++ b/Documentation/devicetree/bindings/display/connector/hdmi-connector.yaml
@@ -36,6 +36,9 @@ properties:
description: GPIO signal to enable DDC bus
maxItems: 1
+ hdmi-pwr-supply:
+ description: Power supply for the HDMI +5V Power pin
+
port:
$ref: /schemas/graph.yaml#/properties/port
description: Connection to controller providing HDMI signals
diff --git a/Documentation/devicetree/bindings/display/dsi-controller.yaml b/Documentation/devicetree/bindings/display/dsi-controller.yaml
index 67ce10307ee0..bb4d6e9e7d0c 100644
--- a/Documentation/devicetree/bindings/display/dsi-controller.yaml
+++ b/Documentation/devicetree/bindings/display/dsi-controller.yaml
@@ -46,7 +46,7 @@ properties:
const: 0
patternProperties:
- "^panel@[0-3]$":
+ "^(panel|bridge)@[0-3]$":
description: Panels connected to the DSI link
type: object
diff --git a/Documentation/devicetree/bindings/display/elgin,jg10309-01.yaml b/Documentation/devicetree/bindings/display/elgin,jg10309-01.yaml
new file mode 100644
index 000000000000..faca0cb3f154
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/elgin,jg10309-01.yaml
@@ -0,0 +1,54 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/elgin,jg10309-01.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Elgin JG10309-01 SPI-controlled display
+
+maintainers:
+ - Fabio Estevam <festevam@gmail.com>
+
+description: |
+ The Elgin JG10309-01 SPI-controlled display is used on the RV1108-Elgin-r1
+ board and is a custom display.
+
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+properties:
+ compatible:
+ const: elgin,jg10309-01
+
+ reg:
+ maxItems: 1
+
+ spi-max-frequency:
+ maximum: 24000000
+
+ spi-cpha: true
+
+ spi-cpol: true
+
+required:
+ - compatible
+ - reg
+ - spi-cpha
+ - spi-cpol
+
+additionalProperties: false
+
+examples:
+ - |
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ display@0 {
+ compatible = "elgin,jg10309-01";
+ reg = <0>;
+ spi-max-frequency = <24000000>;
+ spi-cpha;
+ spi-cpol;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/display/exynos/exynos_dp.txt b/Documentation/devicetree/bindings/display/exynos/exynos_dp.txt
deleted file mode 100644
index 3a401590320f..000000000000
--- a/Documentation/devicetree/bindings/display/exynos/exynos_dp.txt
+++ /dev/null
@@ -1,112 +0,0 @@
-The Exynos display port interface should be configured based on
-the type of panel connected to it.
-
-We use two nodes:
- -dp-controller node
- -dptx-phy node(defined inside dp-controller node)
-
-For the DP-PHY initialization, we use the dptx-phy node.
-Required properties for dptx-phy: deprecated, use phys and phy-names
- -reg: deprecated
- Base address of DP PHY register.
- -samsung,enable-mask: deprecated
- The bit-mask used to enable/disable DP PHY.
-
-For the Panel initialization, we read data from dp-controller node.
-Required properties for dp-controller:
- -compatible:
- should be "samsung,exynos5-dp".
- -reg:
- physical base address of the controller and length
- of memory mapped region.
- -interrupts:
- interrupt combiner values.
- -clocks:
- from common clock binding: handle to dp clock.
- -clock-names:
- from common clock binding: Shall be "dp".
- -phys:
- from general PHY binding: the phandle for the PHY device.
- -phy-names:
- from general PHY binding: Should be "dp".
-
-Optional properties for dp-controller:
- -interlaced:
- interlace scan mode.
- Progressive if defined, Interlaced if not defined
- -vsync-active-high:
- VSYNC polarity configuration.
- High if defined, Low if not defined
- -hsync-active-high:
- HSYNC polarity configuration.
- High if defined, Low if not defined
- -samsung,hpd-gpio:
- Hotplug detect GPIO.
- Indicates which GPIO should be used for hotplug
- detection
- -video interfaces: Device node can contain video interface port
- nodes according to [1].
- - display-timings: timings for the connected panel as described by
- Documentation/devicetree/bindings/display/panel/display-timing.txt
-
-For the below properties, please refer to Analogix DP binding document:
- * Documentation/devicetree/bindings/display/bridge/analogix,dp.yaml
- -phys (required)
- -phy-names (required)
- -hpd-gpios (optional)
- force-hpd (optional)
-
-Deprecated properties for DisplayPort:
--interlaced: deprecated prop that can parsed from drm_display_mode.
--vsync-active-high: deprecated prop that can parsed from drm_display_mode.
--hsync-active-high: deprecated prop that can parsed from drm_display_mode.
--samsung,ycbcr-coeff: deprecated prop that can parsed from drm_display_mode.
--samsung,dynamic-range: deprecated prop that can parsed from drm_display_mode.
--samsung,color-space: deprecated prop that can parsed from drm_display_info.
--samsung,color-depth: deprecated prop that can parsed from drm_display_info.
--samsung,link-rate: deprecated prop that can reading from monitor by dpcd method.
--samsung,lane-count: deprecated prop that can reading from monitor by dpcd method.
--samsung,hpd-gpio: deprecated name for hpd-gpios.
-
--------------------------------------------------------------------------------
-
-Example:
-
-SOC specific portion:
- dp-controller {
- compatible = "samsung,exynos5-dp";
- reg = <0x145b0000 0x10000>;
- interrupts = <10 3>;
- interrupt-parent = <&combiner>;
- clocks = <&clock 342>;
- clock-names = "dp";
-
- phys = <&dp_phy>;
- phy-names = "dp";
- };
-
-Board Specific portion:
- dp-controller {
- display-timings {
- native-mode = <&lcd_timing>;
- lcd_timing: 1366x768 {
- clock-frequency = <70589280>;
- hactive = <1366>;
- vactive = <768>;
- hfront-porch = <40>;
- hback-porch = <40>;
- hsync-len = <32>;
- vback-porch = <10>;
- vfront-porch = <12>;
- vsync-len = <6>;
- };
- };
-
- ports {
- port@0 {
- dp_out: endpoint {
- remote-endpoint = <&bridge_in>;
- };
- };
- };
- };
diff --git a/Documentation/devicetree/bindings/display/fsl,dcu.txt b/Documentation/devicetree/bindings/display/fsl,dcu.txt
deleted file mode 100644
index 63ec2a624aa9..000000000000
--- a/Documentation/devicetree/bindings/display/fsl,dcu.txt
+++ /dev/null
@@ -1,34 +0,0 @@
-Device Tree bindings for Freescale DCU DRM Driver
-
-Required properties:
-- compatible: Should be one of
- * "fsl,ls1021a-dcu".
- * "fsl,vf610-dcu".
-
-- reg: Address and length of the register set for dcu.
-- clocks: Handle to "dcu" and "pix" clock (in the order below)
- This can be the same clock (e.g. LS1021a)
- See ../clocks/clock-bindings.txt for details.
-- clock-names: Should be "dcu" and "pix"
- See ../clocks/clock-bindings.txt for details.
-- big-endian Boolean property, LS1021A DCU registers are big-endian.
-- port Video port for the panel output
-
-Optional properties:
-- fsl,tcon: The phandle to the timing controller node.
-
-Examples:
-dcu: dcu@2ce0000 {
- compatible = "fsl,ls1021a-dcu";
- reg = <0x0 0x2ce0000 0x0 0x10000>;
- clocks = <&platform_clk 0>, <&platform_clk 0>;
- clock-names = "dcu", "pix";
- big-endian;
- fsl,tcon = <&tcon>;
-
- port {
- dcu_out: endpoint {
- remote-endpoint = <&panel_out>;
- };
- };
-};
diff --git a/Documentation/devicetree/bindings/display/fsl,lcdif.yaml b/Documentation/devicetree/bindings/display/fsl,lcdif.yaml
index 75b4efd70ba8..2dd0411ec651 100644
--- a/Documentation/devicetree/bindings/display/fsl,lcdif.yaml
+++ b/Documentation/devicetree/bindings/display/fsl,lcdif.yaml
@@ -21,6 +21,7 @@ properties:
- fsl,imx28-lcdif
- fsl,imx6sx-lcdif
- fsl,imx8mp-lcdif
+ - fsl,imx93-lcdif
- items:
- enum:
- fsl,imx6sl-lcdif
@@ -49,8 +50,19 @@ properties:
- const: disp_axi
minItems: 1
+ dmas:
+ items:
+ - description: DMA specifier for the RX DMA channel.
+
+ dma-names:
+ items:
+ - const: rx
+
interrupts:
- maxItems: 1
+ items:
+ - description: LCDIF DMA interrupt
+ - description: LCDIF Error interrupt
+ minItems: 1
power-domains:
maxItems: 1
@@ -59,12 +71,23 @@ properties:
$ref: /schemas/graph.yaml#/properties/port
description: The LCDIF output port
+ display:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: phandle to display panel
+ deprecated: true
+
+ display0:
+ $ref: panel/panel-common.yaml#
+ deprecated: true
+
+ lcd-supply:
+ deprecated: true
+
required:
- compatible
- reg
- clocks
- interrupts
- - port
additionalProperties: false
@@ -88,7 +111,9 @@ allOf:
properties:
compatible:
contains:
- const: fsl,imx8mp-lcdif
+ enum:
+ - fsl,imx8mp-lcdif
+ - fsl,imx93-lcdif
then:
properties:
clocks:
@@ -107,6 +132,7 @@ allOf:
enum:
- fsl,imx6sx-lcdif
- fsl,imx8mp-lcdif
+ - fsl,imx93-lcdif
then:
properties:
clocks:
@@ -116,16 +142,56 @@ allOf:
- if:
properties:
compatible:
+ const: fsl,imx6sx-lcdif
+ then:
+ required:
+ - power-domains
+ - if:
+ properties:
+ compatible:
contains:
enum:
- fsl,imx6sl-lcdif
- - fsl,imx6sx-lcdif
- fsl,imx8mm-lcdif
- fsl,imx8mn-lcdif
- fsl,imx8mp-lcdif
+ - fsl,imx93-lcdif
then:
required:
- power-domains
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - fsl,imx23-lcdif
+ then:
+ properties:
+ interrupts:
+ minItems: 2
+ maxItems: 2
+ else:
+ properties:
+ interrupts:
+ maxItems: 1
+
+ - if:
+ not:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - fsl,imx28-lcdif
+ then:
+ properties:
+ dmas: false
+ dma-names: false
+ display: false
+ display0: false
+ lcd-supply: false
+
+ required:
+ - port
examples:
- |
diff --git a/Documentation/devicetree/bindings/display/fsl,ls1021a-dcu.yaml b/Documentation/devicetree/bindings/display/fsl,ls1021a-dcu.yaml
new file mode 100644
index 000000000000..72d14babe993
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/fsl,ls1021a-dcu.yaml
@@ -0,0 +1,71 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/fsl,ls1021a-dcu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale DCU DRM Driver
+
+maintainers:
+ - Frank Li <Frank.Li@nxp.com>
+
+properties:
+ compatible:
+ enum:
+ - fsl,ls1021a-dcu
+ - fsl,vf610-dcu
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 2
+
+ clock-names:
+ items:
+ - const: dcu
+ - const: pix
+
+ big-endian: true
+
+ port:
+ $ref: /schemas/graph.yaml#/$defs/port-base
+ unevaluatedProperties: false
+ description: Video port for the panel output
+
+ properties:
+ endpoint:
+ $ref: /schemas/media/video-interfaces.yaml#
+ unevaluatedProperties: false
+
+ fsl,tcon:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: The phandle to the timing controller node.
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+ display-controller@2ce0000 {
+ compatible = "fsl,ls1021a-dcu";
+ reg = <0x2ce0000 0x10000>;
+ clocks = <&platform_clk 0>, <&platform_clk 0>;
+ clock-names = "dcu", "pix";
+ big-endian;
+ fsl,tcon = <&tcon>;
+
+ port {
+ endpoint {
+ remote-endpoint = <&panel_out>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/display/fsl,tcon.txt b/Documentation/devicetree/bindings/display/fsl,tcon.txt
deleted file mode 100644
index 475008747801..000000000000
--- a/Documentation/devicetree/bindings/display/fsl,tcon.txt
+++ /dev/null
@@ -1,17 +0,0 @@
-Device Tree bindings for Freescale TCON Driver
-
-Required properties:
-- compatible: Should be one of
- * "fsl,vf610-tcon".
-
-- reg: Address and length of the register set for tcon.
-- clocks: From common clock binding: handle to tcon ipg clock.
-- clock-names: From common clock binding: Shall be "ipg".
-
-Examples:
-timing-controller@4003d000 {
- compatible = "fsl,vf610-tcon";
- reg = <0x4003d000 0x1000>;
- clocks = <&clks VF610_CLK_TCON0>;
- clock-names = "ipg";
-};
diff --git a/Documentation/devicetree/bindings/display/fsl,vf610-tcon.yaml b/Documentation/devicetree/bindings/display/fsl,vf610-tcon.yaml
new file mode 100644
index 000000000000..06bd680524a5
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/fsl,vf610-tcon.yaml
@@ -0,0 +1,43 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/fsl,vf610-tcon.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale TCON
+
+maintainers:
+ - Frank Li <Frank.Li@nxp.com>
+
+properties:
+ compatible:
+ const: fsl,vf610-tcon
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ items:
+ - const: ipg
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/vf610-clock.h>
+
+ timing-controller@4003d000 {
+ compatible = "fsl,vf610-tcon";
+ reg = <0x4003d000 0x1000>;
+ clocks = <&clks VF610_CLK_TCON0>;
+ clock-names = "ipg";
+ };
diff --git a/Documentation/devicetree/bindings/display/himax,hx8357.yaml b/Documentation/devicetree/bindings/display/himax,hx8357.yaml
new file mode 100644
index 000000000000..34c3b89bf003
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/himax,hx8357.yaml
@@ -0,0 +1,78 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/himax,hx8357.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Himax HX8357D display panel
+
+description:
+ Display panels using a Himax HX8357D controller in SPI
+ mode, such as the Adafruit 3.5" TFT for Raspberry Pi.
+
+maintainers:
+ - Frank Li <Frank.Li@nxp.com>
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - adafruit,yx350hv15
+ - himax,hx8357b
+ - const: himax,hx8357
+ - items:
+ - enum:
+ - himax,hx8369a
+ - const: himax,hx8369
+
+ reg:
+ maxItems: 1
+
+ dc-gpios:
+ maxItems: 1
+ description: D/C pin
+
+ rotation:
+ enum: [0, 90, 180, 270]
+
+ backlight:
+ description:
+ phandle of the backlight device attached to the panel
+
+ im-gpios:
+ maxItems: 3
+
+ reset-gpios:
+ maxItems: 1
+
+ spi-cpha: true
+
+ spi-cpol: true
+
+required:
+ - compatible
+ - reg
+
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ display@0 {
+ compatible = "adafruit,yx350hv15", "himax,hx8357";
+ reg = <0>;
+ spi-max-frequency = <32000000>;
+ dc-gpios = <&gpio0 25 GPIO_ACTIVE_HIGH>;
+ rotation = <90>;
+ backlight = <&backlight>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/display/himax,hx8357d.txt b/Documentation/devicetree/bindings/display/himax,hx8357d.txt
deleted file mode 100644
index e641f664763d..000000000000
--- a/Documentation/devicetree/bindings/display/himax,hx8357d.txt
+++ /dev/null
@@ -1,26 +0,0 @@
-Himax HX8357D display panels
-
-This binding is for display panels using a Himax HX8357D controller in SPI
-mode, such as the Adafruit 3.5" TFT for Raspberry Pi.
-
-Required properties:
-- compatible: "adafruit,yx350hv15", "himax,hx8357d"
-- dc-gpios: D/C pin
-- reg: address of the panel on the SPI bus
-
-The node for this driver must be a child node of a SPI controller, hence
-all mandatory properties described in ../spi/spi-bus.txt must be specified.
-
-Optional properties:
-- rotation: panel rotation in degrees counter clockwise (0,90,180,270)
-- backlight: phandle of the backlight device attached to the panel
-
-Example:
- display@0{
- compatible = "adafruit,yx350hv15", "himax,hx8357d";
- reg = <0>;
- spi-max-frequency = <32000000>;
- dc-gpios = <&gpio0 25 GPIO_ACTIVE_HIGH>;
- rotation = <90>;
- backlight = <&backlight>;
- };
diff --git a/Documentation/devicetree/bindings/display/ilitek,ili9486.yaml b/Documentation/devicetree/bindings/display/ilitek,ili9486.yaml
index 1f8f2182e2f1..7d78edc403dc 100644
--- a/Documentation/devicetree/bindings/display/ilitek,ili9486.yaml
+++ b/Documentation/devicetree/bindings/display/ilitek,ili9486.yaml
@@ -50,15 +50,10 @@ examples:
- |
#include <dt-bindings/gpio/gpio.h>
- backlight: backlight {
- compatible = "gpio-backlight";
- gpios = <&gpio 22 GPIO_ACTIVE_HIGH>;
- };
spi {
#address-cells = <1>;
#size-cells = <0>;
-
display@0{
compatible = "waveshare,rpi-lcd-35", "ilitek,ili9486";
reg = <0>;
diff --git a/Documentation/devicetree/bindings/display/imx/fsl,imx-display-subsystem.yaml b/Documentation/devicetree/bindings/display/imx/fsl,imx-display-subsystem.yaml
new file mode 100644
index 000000000000..92a0a797d099
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/imx/fsl,imx-display-subsystem.yaml
@@ -0,0 +1,36 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/imx/fsl,imx-display-subsystem.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX DRM master device
+
+maintainers:
+ - Frank Li <Frank.Li@nxp.com>
+
+description:
+ The freescale i.MX DRM master device is a virtual device needed to list all
+ IPU or other display interface nodes that comprise the graphics subsystem.
+
+properties:
+ compatible:
+ const: fsl,imx-display-subsystem
+
+ ports:
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ description:
+ Should contain a list of phandles pointing to camera
+ sensor interface ports of IPU devices.
+
+required:
+ - compatible
+
+additionalProperties: false
+
+examples:
+ - |
+ display-subsystem {
+ compatible = "fsl,imx-display-subsystem";
+ ports = <&ipu_di0>;
+ };
diff --git a/Documentation/devicetree/bindings/display/imx/fsl,imx-parallel-display.yaml b/Documentation/devicetree/bindings/display/imx/fsl,imx-parallel-display.yaml
new file mode 100644
index 000000000000..bbcfe7e2958b
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/imx/fsl,imx-parallel-display.yaml
@@ -0,0 +1,74 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/imx/fsl,imx-parallel-display.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Parallel display support
+
+maintainers:
+ - Frank Li <Frank.Li@nxp.com>
+
+properties:
+ compatible:
+ const: fsl,imx-parallel-display
+
+ interface-pix-fmt:
+ $ref: /schemas/types.yaml#/definitions/string
+ enum:
+ - rgb24
+ - rgb565
+ - bgr666
+ - lvds666
+
+ ddc:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description:
+ phandle describing the i2c bus handling the display data channel
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+ port@0:
+ $ref: /schemas/graph.yaml#/$defs/port-base
+ unevaluatedProperties: false
+ description: input port connected to the IPU display interface
+
+ port@1:
+ $ref: /schemas/graph.yaml#/$defs/port-base
+ unevaluatedProperties: false
+ description: output port connected to a panel
+
+required:
+ - compatible
+
+additionalProperties: false
+
+examples:
+ - |
+ display {
+ compatible = "fsl,imx-parallel-display";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ interface-pix-fmt = "rgb24";
+
+ port@0 {
+ reg = <0>;
+
+ endpoint {
+ remote-endpoint = <&ipu_di0_disp0>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ endpoint {
+ remote-endpoint = <&panel_in>;
+ };
+ };
+ };
+
diff --git a/Documentation/devicetree/bindings/display/imx/fsl,imx6-hdmi.yaml b/Documentation/devicetree/bindings/display/imx/fsl,imx6-hdmi.yaml
index af7fe9c4d196..180c4b510fb1 100644
--- a/Documentation/devicetree/bindings/display/imx/fsl,imx6-hdmi.yaml
+++ b/Documentation/devicetree/bindings/display/imx/fsl,imx6-hdmi.yaml
@@ -31,14 +31,6 @@ properties:
clock-names:
maxItems: 2
- ddc-i2c-bus:
- $ref: /schemas/types.yaml#/definitions/phandle
- description:
- The HDMI DDC bus can be connected to either a system I2C master or the
- functionally-reduced I2C master contained in the DWC HDMI. When connected
- to a system I2C master this property contains a phandle to that I2C
- master controller.
-
gpr:
$ref: /schemas/types.yaml#/definitions/phandle
description:
@@ -87,7 +79,7 @@ required:
- interrupts
- ports
-additionalProperties: false
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/display/imx/fsl,imx6q-ipu.yaml b/Documentation/devicetree/bindings/display/imx/fsl,imx6q-ipu.yaml
new file mode 100644
index 000000000000..ec78645d4de0
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/imx/fsl,imx6q-ipu.yaml
@@ -0,0 +1,97 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/imx/fsl,imx6q-ipu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX IPUv3
+
+maintainers:
+ - Frank Li <Frank.Li@nxp.com>
+
+properties:
+ compatible:
+ oneOf:
+ - enum:
+ - fsl,imx51-ipu
+ - fsl,imx53-ipu
+ - fsl,imx6q-ipu
+ - items:
+ - const: fsl,imx6qp-ipu
+ - const: fsl,imx6q-ipu
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ minItems: 1
+ maxItems: 2
+
+ clocks:
+ maxItems: 3
+
+ clock-names:
+ items:
+ - const: bus
+ - const: di0
+ - const: di1
+
+ resets:
+ maxItems: 1
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+ fsl,prg:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: phandle to prg node associated with this IPU instance
+
+ port@0:
+ $ref: /schemas/graph.yaml#/$defs/port-base
+ unevaluatedProperties: false
+ description: CSI0
+
+ port@1:
+ $ref: /schemas/graph.yaml#/$defs/port-base
+ unevaluatedProperties: false
+ description: CSI1
+
+ port@2:
+ $ref: /schemas/graph.yaml#/$defs/port-base
+ unevaluatedProperties: false
+ description: DI0
+
+ port@3:
+ $ref: /schemas/graph.yaml#/$defs/port-base
+ unevaluatedProperties: false
+ description: DI1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - resets
+
+additionalProperties: false
+
+examples:
+ - |
+ display-controller@18000000 {
+ compatible = "fsl,imx53-ipu";
+ reg = <0x18000000 0x080000000>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ interrupts = <11 10>;
+ resets = <&src 2>;
+
+ port@2 {
+ reg = <2>;
+
+ endpoint {
+ remote-endpoint = <&display_in>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/display/imx/fsl,imx6q-ldb.yaml b/Documentation/devicetree/bindings/display/imx/fsl,imx6q-ldb.yaml
new file mode 100644
index 000000000000..1646f41d8f72
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/imx/fsl,imx6q-ldb.yaml
@@ -0,0 +1,193 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/imx/fsl,imx6q-ldb.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale LVDS Display Bridge (ldb)
+
+description:
+ The LVDS Display Bridge device tree node contains up to two lvds-channel
+ nodes describing each of the two LVDS encoder channels of the bridge.
+
+maintainers:
+ - Frank Li <Frank.Li@nxp.com>
+
+properties:
+ compatible:
+ oneOf:
+ - enum:
+ - fsl,imx53-ldb
+ - items:
+ - enum:
+ - fsl,imx6q-ldb
+ - const: fsl,imx53-ldb
+
+ reg:
+ maxItems: 1
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+ gpr:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description:
+ The phandle points to the iomuxc-gpr region containing the LVDS
+ control register.
+
+ clocks:
+ minItems: 6
+ maxItems: 8
+
+ clock-names:
+ oneOf:
+ - items:
+ - const: di0_pll
+ - const: di1_pll
+ - const: di0_sel
+ - const: di1_sel
+ - const: di0
+ - const: di1
+ - items:
+ - const: di0_pll
+ - const: di1_pll
+ - const: di0_sel
+ - const: di1_sel
+ - const: di2_sel
+ - const: di3_sel
+ - const: di0
+ - const: di1
+
+ fsl,dual-channel:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ if it exists, only LVDS channel 0 should
+ be configured - one input will be distributed on both outputs in dual
+ channel mode
+
+patternProperties:
+ '^lvds-channel@[0-1]$':
+ type: object
+ description:
+ Each LVDS Channel has to contain either an of graph link to a panel device node
+ or a display-timings node that describes the video timings for the connected
+ LVDS display as well as the fsl,data-mapping and fsl,data-width properties.
+
+ properties:
+ reg:
+ maxItems: 1
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+ display-timings:
+ $ref: /schemas/display/panel/display-timings.yaml#
+
+ fsl,data-mapping:
+ enum:
+ - spwg
+ - jeida
+
+ fsl,data-width:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: should be <18> or <24>
+ enum:
+ - 18
+ - 24
+
+ fsl,panel:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: phandle to lcd panel
+
+ patternProperties:
+ '^port@[0-4]$':
+ $ref: /schemas/graph.yaml#/properties/port
+ description:
+ On i.MX5, the internal two-input-multiplexer is used. Due to hardware
+ limitations, only one input port (port@[0,1]) can be used for each channel
+ (lvds-channel@[0,1], respectively).
+ On i.MX6, there should be four input ports (port@[0-3]) that correspond
+ to the four LVDS multiplexer inputs.
+ A single output port (port@2 on i.MX5, port@4 on i.MX6) must be connected
+ to a panel input port. Optionally, the output port can be left out if
+ display-timings are used instead.
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - gpr
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/imx5-clock.h>
+
+ ldb@53fa8008 {
+ compatible = "fsl,imx53-ldb";
+ reg = <0x53fa8008 0x4>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ gpr = <&gpr>;
+ clocks = <&clks IMX5_CLK_LDB_DI0_SEL>,
+ <&clks IMX5_CLK_LDB_DI1_SEL>,
+ <&clks IMX5_CLK_IPU_DI0_SEL>,
+ <&clks IMX5_CLK_IPU_DI1_SEL>,
+ <&clks IMX5_CLK_LDB_DI0_GATE>,
+ <&clks IMX5_CLK_LDB_DI1_GATE>;
+ clock-names = "di0_pll", "di1_pll",
+ "di0_sel", "di1_sel",
+ "di0", "di1";
+
+ /* Using an of-graph endpoint link to connect the panel */
+ lvds-channel@0 {
+ reg = <0>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ endpoint {
+ remote-endpoint = <&ipu_di0_lvds0>;
+ };
+ };
+
+ port@2 {
+ reg = <2>;
+
+ endpoint {
+ remote-endpoint = <&panel_in>;
+ };
+ };
+ };
+
+ /* Using display-timings and fsl,data-mapping/width instead */
+ lvds-channel@1 {
+ reg = <1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ fsl,data-mapping = "spwg";
+ fsl,data-width = <24>;
+
+ display-timings {/* ... */
+ };
+
+ port@1 {
+ reg = <1>;
+
+ endpoint {
+ remote-endpoint = <&ipu_di1_lvds1>;
+ };
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/display/imx/fsl,imx6qp-pre.yaml b/Documentation/devicetree/bindings/display/imx/fsl,imx6qp-pre.yaml
new file mode 100644
index 000000000000..73bc73ff6e69
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/imx/fsl,imx6qp-pre.yaml
@@ -0,0 +1,55 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/imx/fsl,imx6qp-pre.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX PRE (Prefetch Resolve Engine)
+
+maintainers:
+ - Frank Li <Frank.Li@nxp.com>
+
+properties:
+ compatible:
+ const: fsl,imx6qp-pre
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ items:
+ - const: axi
+ fsl,iram:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description:
+ phandle pointing to the mmio-sram device node, that should be
+ used for the PRE SRAM double buffer.
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/imx6qdl-clock.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ pre@21c8000 {
+ compatible = "fsl,imx6qp-pre";
+ reg = <0x021c8000 0x1000>;
+ interrupts = <GIC_SPI 90 IRQ_TYPE_EDGE_RISING>;
+ clocks = <&clks IMX6QDL_CLK_PRE0>;
+ clock-names = "axi";
+ fsl,iram = <&ocram2>;
+ };
diff --git a/Documentation/devicetree/bindings/display/imx/fsl,imx6qp-prg.yaml b/Documentation/devicetree/bindings/display/imx/fsl,imx6qp-prg.yaml
new file mode 100644
index 000000000000..582da8c489f4
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/imx/fsl,imx6qp-prg.yaml
@@ -0,0 +1,54 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/imx/fsl,imx6qp-prg.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX PRG (Prefetch Resolve Gasket)
+
+maintainers:
+ - Frank Li <Frank.Li@nxp.com>
+
+properties:
+ compatible:
+ const: fsl,imx6qp-prg
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 2
+
+ clock-names:
+ items:
+ - const: ipg
+ - const: axi
+
+ fsl,pres:
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ items:
+ maxItems: 1
+ description:
+ phandles to the PRE units attached to this PRG, with the fixed
+ PRE as the first entry and the muxable PREs following.
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/imx6qdl-clock.h>
+
+ prg@21cc000 {
+ compatible = "fsl,imx6qp-prg";
+ reg = <0x021cc000 0x1000>;
+ clocks = <&clks IMX6QDL_CLK_PRG0_APB>, <&clks IMX6QDL_CLK_PRG0_AXI>;
+ clock-names = "ipg", "axi";
+ fsl,pres = <&pre1>, <&pre2>, <&pre3>;
+ };
+
diff --git a/Documentation/devicetree/bindings/display/imx/fsl,imx8mp-hdmi-pai.yaml b/Documentation/devicetree/bindings/display/imx/fsl,imx8mp-hdmi-pai.yaml
new file mode 100644
index 000000000000..4f99682a308d
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/imx/fsl,imx8mp-hdmi-pai.yaml
@@ -0,0 +1,69 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/imx/fsl,imx8mp-hdmi-pai.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX8MP HDMI Parallel Audio Interface
+
+maintainers:
+ - Shengjiu Wang <shengjiu.wang@nxp.com>
+
+description:
+ The HDMI TX Parallel Audio Interface (HTX_PAI) is a bridge between the
+ Audio Subsystem to the HDMI TX Controller.
+
+properties:
+ compatible:
+ const: fsl,imx8mp-hdmi-pai
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ const: apb
+
+ power-domains:
+ maxItems: 1
+
+ port:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: Output to the HDMI TX controller.
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - power-domains
+ - port
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/imx8mp-clock.h>
+ #include <dt-bindings/power/imx8mp-power.h>
+
+ audio-bridge@32fc4800 {
+ compatible = "fsl,imx8mp-hdmi-pai";
+ reg = <0x32fc4800 0x800>;
+ interrupt-parent = <&irqsteer_hdmi>;
+ interrupts = <14>;
+ clocks = <&clk IMX8MP_CLK_HDMI_APB>;
+ clock-names = "apb";
+ power-domains = <&hdmi_blk_ctrl IMX8MP_HDMIBLK_PD_PAI>;
+
+ port {
+ pai_to_hdmi_tx: endpoint {
+ remote-endpoint = <&hdmi_tx_from_pai>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/display/imx/fsl,imx8mp-hdmi-pvi.yaml b/Documentation/devicetree/bindings/display/imx/fsl,imx8mp-hdmi-pvi.yaml
new file mode 100644
index 000000000000..56da1636014c
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/imx/fsl,imx8mp-hdmi-pvi.yaml
@@ -0,0 +1,84 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/imx/fsl,imx8mp-hdmi-pvi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX8MP HDMI Parallel Video Interface
+
+maintainers:
+ - Lucas Stach <l.stach@pengutronix.de>
+
+description:
+ The HDMI parallel video interface is a timing and sync generator block in the
+ i.MX8MP SoC, that sits between the video source and the HDMI TX controller.
+
+properties:
+ compatible:
+ const: fsl,imx8mp-hdmi-pvi
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ power-domains:
+ maxItems: 1
+
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+
+ properties:
+ port@0:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: Input from the LCDIF controller.
+
+ port@1:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: Output to the HDMI TX controller.
+
+ required:
+ - port@0
+ - port@1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - power-domains
+ - ports
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/power/imx8mp-power.h>
+
+ display-bridge@32fc4000 {
+ compatible = "fsl,imx8mp-hdmi-pvi";
+ reg = <0x32fc4000 0x44>;
+ interrupt-parent = <&irqsteer_hdmi>;
+ interrupts = <12 IRQ_TYPE_LEVEL_HIGH>;
+ power-domains = <&hdmi_blk_ctrl IMX8MP_HDMIBLK_PD_PVI>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ pvi_from_lcdif3: endpoint {
+ remote-endpoint = <&lcdif3_to_pvi>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ pvi_to_hdmi_tx: endpoint {
+ remote-endpoint = <&hdmi_tx_from_pvi>;
+ };
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-axi-performance-counter.yaml b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-axi-performance-counter.yaml
new file mode 100644
index 000000000000..1d6501afc7f2
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-axi-performance-counter.yaml
@@ -0,0 +1,57 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/imx/fsl,imx8qxp-dc-axi-performance-counter.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX8qxp Display Controller AXI Performance Counter
+
+description: |
+ Performance counters are provided to allow measurement of average bandwidth
+ and latency during operation. The following features are supported:
+
+ * Manual and timer controlled measurement mode.
+
+ * Measurement counters:
+ - GLOBAL_COUNTER for overall measurement time
+ - BUSY_COUNTER for number of data bus busy cycles
+ - DATA_COUNTER for number of data transfer cycles
+ - TRANSFER_COUNTER for number of transfers
+ - ADDRBUSY_COUNTER for number of address bus busy cycles
+ - LATENCY_COUNTER for average latency
+
+ * Counter overflow detection.
+
+ * Outstanding Transfer Counters (OTC) which are used for latency measurement
+ have to run immediately after reset, but can be disabled by software when
+ there is no need for latency measurement.
+
+maintainers:
+ - Liu Ying <victor.liu@nxp.com>
+
+properties:
+ compatible:
+ const: fsl,imx8qxp-dc-axi-performance-counter
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/imx8-lpcg.h>
+
+ pmu@5618f000 {
+ compatible = "fsl,imx8qxp-dc-axi-performance-counter";
+ reg = <0x5618f000 0x90>;
+ clocks = <&dc0_lpcg IMX_LPCG_CLK_5>;
+ };
diff --git a/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-blit-engine.yaml b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-blit-engine.yaml
new file mode 100644
index 000000000000..45db6da39e20
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-blit-engine.yaml
@@ -0,0 +1,204 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/imx/fsl,imx8qxp-dc-blit-engine.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX8qxp Display Controller Blit Engine
+
+description: |
+ A blit operation (block based image transfer) reads up to 3 source images
+ from memory and computes one destination image from it, which is written
+ back to memory. The following basic operations are supported:
+
+ * Buffer Fill
+ Fills a buffer with constant color
+
+ * Buffer Copy
+ Copies one source to a destination buffer.
+
+ * Image Blend
+ Combines two source images by a blending equation and writes result to
+ destination (which can be one of the sources).
+
+ * Image Rop2/3
+ Combines up to three source images by a logical equation (raster operation)
+ and writes result to destination (which can be one of the sources).
+
+ * Image Flip
+ Mirrors the source image in horizontal and/or vertical direction.
+
+ * Format Convert
+ Convert between the supported color and buffer formats.
+
+ * Color Transform
+ Modify colors by linear or non-linear transformations.
+
+ * Image Scale
+ Changes size of the source image.
+
+ * Image Rotate
+ Rotates the source image by any angle.
+
+ * Image Filter
+ Performs an FIR filter operation on the source image.
+
+ * Image Warp
+ Performs a re-sampling of the source image with any pattern. The sample
+ point positions are read from a compressed coordinate buffer.
+
+ * Buffer Pack
+ Writes an image with color components stored in up to three different
+ buffers (planar formats) into a single buffer (packed format).
+
+ * Chroma Resample
+ Converts between different YUV formats that differ in chroma sampling rate
+ (4:4:4, 4:2:2, 4:2:0).
+
+maintainers:
+ - Liu Ying <victor.liu@nxp.com>
+
+properties:
+ compatible:
+ const: fsl,imx8qxp-dc-blit-engine
+
+ reg:
+ maxItems: 2
+
+ reg-names:
+ items:
+ - const: pec
+ - const: cfg
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 1
+
+ ranges: true
+
+patternProperties:
+ "^blitblend@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ const: fsl,imx8qxp-dc-blitblend
+
+ "^clut@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ const: fsl,imx8qxp-dc-clut
+
+ "^fetchdecode@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ const: fsl,imx8qxp-dc-fetchdecode
+
+ "^fetcheco@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ const: fsl,imx8qxp-dc-fetcheco
+
+ "^fetchwarp@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ const: fsl,imx8qxp-dc-fetchwarp
+
+ "^filter@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ const: fsl,imx8qxp-dc-filter
+
+ "^hscaler@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ const: fsl,imx8qxp-dc-hscaler
+
+ "^matrix@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ const: fsl,imx8qxp-dc-matrix
+
+ "^rop@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ const: fsl,imx8qxp-dc-rop
+
+ "^store@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ const: fsl,imx8qxp-dc-store
+
+ "^vscaler@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ const: fsl,imx8qxp-dc-vscaler
+
+required:
+ - compatible
+ - reg
+ - reg-names
+ - "#address-cells"
+ - "#size-cells"
+ - ranges
+
+additionalProperties: false
+
+examples:
+ - |
+ blit-engine@56180820 {
+ compatible = "fsl,imx8qxp-dc-blit-engine";
+ reg = <0x56180820 0x13c>, <0x56181000 0x3400>;
+ reg-names = "pec", "cfg";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ fetchdecode@56180820 {
+ compatible = "fsl,imx8qxp-dc-fetchdecode";
+ reg = <0x56180820 0x10>, <0x56181000 0x404>;
+ reg-names = "pec", "cfg";
+ };
+
+ store@56180940 {
+ compatible = "fsl,imx8qxp-dc-store";
+ reg = <0x56180940 0x1c>, <0x56184000 0x5c>;
+ reg-names = "pec", "cfg";
+ interrupt-parent = <&dc0_intc>;
+ interrupts = <0>, <1>, <2>;
+ interrupt-names = "shdload", "framecomplete", "seqcomplete";
+ };
+ };
diff --git a/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-blitblend.yaml b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-blitblend.yaml
new file mode 100644
index 000000000000..095e65939fba
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-blitblend.yaml
@@ -0,0 +1,41 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/imx/fsl,imx8qxp-dc-blitblend.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX8qxp Display Controller Blit Blend Unit
+
+description:
+ Combines two input frames to a single output frame, all frames having the
+ same dimension.
+
+maintainers:
+ - Liu Ying <victor.liu@nxp.com>
+
+properties:
+ compatible:
+ const: fsl,imx8qxp-dc-blitblend
+
+ reg:
+ maxItems: 2
+
+ reg-names:
+ items:
+ - const: pec
+ - const: cfg
+
+required:
+ - compatible
+ - reg
+ - reg-names
+
+additionalProperties: false
+
+examples:
+ - |
+ blitblend@56180920 {
+ compatible = "fsl,imx8qxp-dc-blitblend";
+ reg = <0x56180920 0x10>, <0x56183c00 0x3c>;
+ reg-names = "pec", "cfg";
+ };
diff --git a/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-clut.yaml b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-clut.yaml
new file mode 100644
index 000000000000..21d42aa11b52
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-clut.yaml
@@ -0,0 +1,44 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/imx/fsl,imx8qxp-dc-clut.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX8qxp Display Controller Color Lookup Table
+
+description: |
+ The unit implements 3 look-up tables with 256 x 10 bit entries each. These
+ can be used for different kinds of applications. From 10-bit input values
+ only upper 8 bits are used.
+
+ The unit supports color lookup, index lookup, dithering and alpha masking.
+
+maintainers:
+ - Liu Ying <victor.liu@nxp.com>
+
+properties:
+ compatible:
+ const: fsl,imx8qxp-dc-clut
+
+ reg:
+ maxItems: 2
+
+ reg-names:
+ items:
+ - const: pec
+ - const: cfg
+
+required:
+ - compatible
+ - reg
+ - reg-names
+
+additionalProperties: false
+
+examples:
+ - |
+ clut@56180880 {
+ compatible = "fsl,imx8qxp-dc-clut";
+ reg = <0x56180880 0x10>, <0x56182400 0x404>;
+ reg-names = "pec", "cfg";
+ };
diff --git a/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-command-sequencer.yaml b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-command-sequencer.yaml
new file mode 100644
index 000000000000..27118f4c0d28
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-command-sequencer.yaml
@@ -0,0 +1,67 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/imx/fsl,imx8qxp-dc-command-sequencer.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX8qxp Display Controller Command Sequencer
+
+description: |
+ The Command Sequencer is designed to autonomously process command lists.
+ By that it can load setups into the DC configuration and synchronize to
+ hardware events. This releases a system's CPU from workload, because it
+ does not need to wait for certain events. Also it simplifies SW architecture,
+ because no interrupt handlers are required. Setups are read via AXI bus,
+ while write access to configuration registers occurs directly via an internal
+ bus. This saves bandwidth for the AXI interconnect and improves the system
+ architecture in terms of safety aspects.
+
+maintainers:
+ - Liu Ying <victor.liu@nxp.com>
+
+properties:
+ compatible:
+ const: fsl,imx8qxp-dc-command-sequencer
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 5
+
+ interrupt-names:
+ items:
+ - const: error
+ - const: sw0
+ - const: sw1
+ - const: sw2
+ - const: sw3
+
+ sram:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: phandle pointing to the mmio-sram device node
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - interrupts
+ - interrupt-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/imx8-lpcg.h>
+
+ command-sequencer@56180400 {
+ compatible = "fsl,imx8qxp-dc-command-sequencer";
+ reg = <0x56180400 0x1a4>;
+ clocks = <&dc0_lpcg IMX_LPCG_CLK_5>;
+ interrupt-parent = <&dc0_intc>;
+ interrupts = <36>, <37>, <38>, <39>, <40>;
+ interrupt-names = "error", "sw0", "sw1", "sw2", "sw3";
+ };
diff --git a/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-constframe.yaml b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-constframe.yaml
new file mode 100644
index 000000000000..94f678563608
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-constframe.yaml
@@ -0,0 +1,44 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/imx/fsl,imx8qxp-dc-constframe.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX8qxp Display Controller Constant Frame
+
+description: |
+ The Constant Frame unit is used instead of a Fetch unit where generation of
+ constant color frames only is sufficient. This is the case for the background
+ planes of content and safety streams in a Display Controller.
+
+ The color can be setup to any RGBA value.
+
+maintainers:
+ - Liu Ying <victor.liu@nxp.com>
+
+properties:
+ compatible:
+ const: fsl,imx8qxp-dc-constframe
+
+ reg:
+ maxItems: 2
+
+ reg-names:
+ items:
+ - const: pec
+ - const: cfg
+
+required:
+ - compatible
+ - reg
+ - reg-names
+
+additionalProperties: false
+
+examples:
+ - |
+ constframe@56180960 {
+ compatible = "fsl,imx8qxp-dc-constframe";
+ reg = <0x56180960 0xc>, <0x56184400 0x20>;
+ reg-names = "pec", "cfg";
+ };
diff --git a/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-display-engine.yaml b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-display-engine.yaml
new file mode 100644
index 000000000000..91f3bb77d8d0
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-display-engine.yaml
@@ -0,0 +1,152 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/imx/fsl,imx8qxp-dc-display-engine.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX8qxp Display Controller Display Engine
+
+description:
+ All Processing Units that operate in a display clock domain. Pixel pipeline
+ is driven by a video timing and cannot be stalled. Implements all display
+ specific processing.
+
+maintainers:
+ - Liu Ying <victor.liu@nxp.com>
+
+properties:
+ compatible:
+ const: fsl,imx8qxp-dc-display-engine
+
+ reg:
+ maxItems: 2
+
+ reg-names:
+ items:
+ - const: top
+ - const: cfg
+
+ resets:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 3
+
+ interrupt-names:
+ items:
+ - const: shdload
+ - const: framecomplete
+ - const: seqcomplete
+
+ power-domains:
+ maxItems: 1
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 1
+
+ ranges: true
+
+patternProperties:
+ "^dither@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ const: fsl,imx8qxp-dc-dither
+
+ "^framegen@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ const: fsl,imx8qxp-dc-framegen
+
+ "^gammacor@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ const: fsl,imx8qxp-dc-gammacor
+
+ "^matrix@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ const: fsl,imx8qxp-dc-matrix
+
+ "^signature@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ const: fsl,imx8qxp-dc-signature
+
+ "^tcon@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ const: fsl,imx8qxp-dc-tcon
+
+required:
+ - compatible
+ - reg
+ - reg-names
+ - interrupts
+ - interrupt-names
+ - power-domains
+ - "#address-cells"
+ - "#size-cells"
+ - ranges
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/imx8-lpcg.h>
+ #include <dt-bindings/firmware/imx/rsrc.h>
+
+ display-engine@5618b400 {
+ compatible = "fsl,imx8qxp-dc-display-engine";
+ reg = <0x5618b400 0x14>, <0x5618b800 0x1c00>;
+ reg-names = "top", "cfg";
+ interrupt-parent = <&dc0_intc>;
+ interrupts = <15>, <16>, <17>;
+ interrupt-names = "shdload", "framecomplete", "seqcomplete";
+ power-domains = <&pd IMX_SC_R_DC_0_PLL_0>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ framegen@5618b800 {
+ compatible = "fsl,imx8qxp-dc-framegen";
+ reg = <0x5618b800 0x98>;
+ clocks = <&dc0_disp_lpcg IMX_LPCG_CLK_0>;
+ interrupt-parent = <&dc0_intc>;
+ interrupts = <18>, <19>, <20>, <21>, <41>, <42>, <43>, <44>;
+ interrupt-names = "int0", "int1", "int2", "int3",
+ "primsync_on", "primsync_off",
+ "secsync_on", "secsync_off";
+ };
+
+ tcon@5618c800 {
+ compatible = "fsl,imx8qxp-dc-tcon";
+ reg = <0x5618c800 0x588>;
+
+ port {
+ dc0_disp0_dc0_pixel_combiner_ch0: endpoint {
+ remote-endpoint = <&dc0_pixel_combiner_ch0_dc0_disp0>;
+ };
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-dither.yaml b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-dither.yaml
new file mode 100644
index 000000000000..8e4468d91836
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-dither.yaml
@@ -0,0 +1,45 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/imx/fsl,imx8qxp-dc-dither.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX8qxp Display Controller Dither Unit
+
+description: |
+ The unit can increase the physical color resolution of a display from 5, 6, 7
+ or 8 bits per RGB channel to a virtual resolution of 10 bits. The physical
+ resolution can be set individually for each channel.
+
+ The resolution is increased by mixing the two physical colors that are nearest
+ to the virtual color code in a variable ratio either by time (temporal
+ dithering) or by position (spatial dithering).
+
+ An optimized algorithm for temporal dithering minimizes noise artifacts on the
+ output image.
+
+ The dither operation can be individually enabled or disabled for each pixel
+ using the alpha input bit.
+
+maintainers:
+ - Liu Ying <victor.liu@nxp.com>
+
+properties:
+ compatible:
+ const: fsl,imx8qxp-dc-dither
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ dither@5618c400 {
+ compatible = "fsl,imx8qxp-dc-dither";
+ reg = <0x5618c400 0x14>;
+ };
diff --git a/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-extdst.yaml b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-extdst.yaml
new file mode 100644
index 000000000000..dfc2d4f94f8e
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-extdst.yaml
@@ -0,0 +1,72 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/imx/fsl,imx8qxp-dc-extdst.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX8qxp Display Controller External Destination Interface
+
+description: |
+ The External Destination unit is the interface between the internal pixel
+ processing pipeline of the Pixel Engine, which is 30-bit RGB plus 8-bit Alpha,
+ and a Display Engine.
+
+ It comprises the following built-in Gamma apply function.
+
+ +------X-----------------------+
+ | | ExtDst Unit |
+ | V |
+ | +-------+ |
+ | | Gamma | |
+ | +-------+ |
+ | | |
+ | V +
+ +------X-----------------------+
+
+ The output format is 24-bit RGB plus 1-bit Alpha. Conversion from 10 to 8
+ bits is done by LSBit truncation. Alpha output bit is 1 for input 255, 0
+ otherwise.
+
+maintainers:
+ - Liu Ying <victor.liu@nxp.com>
+
+properties:
+ compatible:
+ const: fsl,imx8qxp-dc-extdst
+
+ reg:
+ maxItems: 2
+
+ reg-names:
+ items:
+ - const: pec
+ - const: cfg
+
+ interrupts:
+ maxItems: 3
+
+ interrupt-names:
+ items:
+ - const: shdload
+ - const: framecomplete
+ - const: seqcomplete
+
+required:
+ - compatible
+ - reg
+ - reg-names
+ - interrupts
+ - interrupt-names
+
+additionalProperties: false
+
+examples:
+ - |
+ extdst@56180980 {
+ compatible = "fsl,imx8qxp-dc-extdst";
+ reg = <0x56180980 0x1c>, <0x56184800 0x28>;
+ reg-names = "pec", "cfg";
+ interrupt-parent = <&dc0_intc>;
+ interrupts = <3>, <4>, <5>;
+ interrupt-names = "shdload", "framecomplete", "seqcomplete";
+ };
diff --git a/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-fetchunit.yaml b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-fetchunit.yaml
new file mode 100644
index 000000000000..97fb6a4598d9
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-fetchunit.yaml
@@ -0,0 +1,141 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/imx/fsl,imx8qxp-dc-fetchunit.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX8qxp Display Controller Fetch Unit
+
+description: |
+ The Fetch Unit is the interface between the AXI bus for source buffer access
+ and the internal pixel processing pipeline, which is 30-bit RGB plus 8-bit
+ Alpha.
+
+ It is used to generate foreground planes in Display Controllers and source
+ planes in Blit Engines, and comprises the following built-in functions to
+ convert a wide range of frame buffer types.
+
+ +---------X-----------------------------------------+
+ | | Fetch Unit |
+ | V |
+ | +---------+ |
+ | | | |
+ | | Decode | Decompression [Decode] |
+ | | | |
+ | +---------+ |
+ | | |
+ | V |
+ | +---------+ |
+ | | Clip & | Clip Window [All] |
+ | | Overlay | Plane composition [Layer, Warp] |
+ | | | |
+ | +---------+ |
+ | | |
+ | V |
+ | +---------+ |
+ | | Re- | Flip/Rotate/Repl./Drop [All] |
+ X--> | sample | Perspective/Affine warping [Persp] |
+ | | | | Arbitrary warping [Warp, Persp] |
+ | | +---------+ |
+ | | | |
+ | | V |
+ | | +---------+ |
+ | | | | |
+ | | | Palette | Color Palette [Layer, Decode] |
+ | | | | |
+ | | +---------+ |
+ | | | |
+ | | V |
+ | | +---------+ |
+ | | | Extract | Raw to RGBA/YUV [All] |
+ | | | & | Bit width expansion [All] |
+ | | | Expand | |
+ | | +---------+ |
+ | | | |
+ | | V |
+ | | +---------+ |
+ | | | | Planar to packed |
+ | |->| Combine | [Decode, Warp, Persp] |
+ | | | | |
+ | | +---------+ |
+ | | | |
+ | | V |
+ | | +---------+ |
+ | | | | YUV422 to YUV444 |
+ | | | Chroma | [Decode, Persp] |
+ | | | | |
+ | | +---------+ |
+ | | | |
+ | | V |
+ | | +---------+ |
+ | | | | YUV to RGB |
+ | | | Color | [Warp, Persp, Decode, Layer] |
+ | | | | |
+ | | +---------+ |
+ | | | |
+ | | V |
+ | | +---------+ |
+ | | | | Gamma removal |
+ | | | Gamma | [Warp, Persp, Decode, Layer] |
+ | | | | |
+ | | +---------+ |
+ | | | |
+ | | V |
+ | | +---------+ |
+ | | | | Alpla multiply, RGB pre-multiply |
+ | ->| Multiply| [Warp, Persp, Decode, Layer] |
+ | | | |
+ | --------- |
+ | | |
+ | V |
+ | +---------+ |
+ | | | Bilinear filter |
+ | | Filter | [Warp, Persp] |
+ | | | |
+ | +---------+ |
+ | | |
+ | V |
+ +---------X-----------------------------------------+
+
+ Note that different derivatives of the Fetch Unit exist. Each implements a
+ specific subset only of the pipeline stages shown above. Restrictions for the
+ units are specified in [square brackets].
+
+maintainers:
+ - Liu Ying <victor.liu@nxp.com>
+
+properties:
+ compatible:
+ enum:
+ - fsl,imx8qxp-dc-fetchdecode
+ - fsl,imx8qxp-dc-fetcheco
+ - fsl,imx8qxp-dc-fetchlayer
+ - fsl,imx8qxp-dc-fetchwarp
+
+ reg:
+ maxItems: 2
+
+ reg-names:
+ items:
+ - const: pec
+ - const: cfg
+
+ fsl,prg:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description:
+ Optional Prefetch Resolve Gasket associated with the Fetch Unit.
+
+required:
+ - compatible
+ - reg
+ - reg-names
+
+additionalProperties: false
+
+examples:
+ - |
+ fetchlayer@56180ac0 {
+ compatible = "fsl,imx8qxp-dc-fetchlayer";
+ reg = <0x56180ac0 0xc>, <0x56188400 0x404>;
+ reg-names = "pec", "cfg";
+ };
diff --git a/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-filter.yaml b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-filter.yaml
new file mode 100644
index 000000000000..5c54d5179ee3
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-filter.yaml
@@ -0,0 +1,43 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/imx/fsl,imx8qxp-dc-filter.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX8qxp Display Controller Filter Unit
+
+description: |
+ 5x5 FIR filter with 25 programmable coefficients.
+
+ Typical applications are image blurring, sharpening or support for edge
+ detection algorithms.
+
+maintainers:
+ - Liu Ying <victor.liu@nxp.com>
+
+properties:
+ compatible:
+ const: fsl,imx8qxp-dc-filter
+
+ reg:
+ maxItems: 2
+
+ reg-names:
+ items:
+ - const: pec
+ - const: cfg
+
+required:
+ - compatible
+ - reg
+ - reg-names
+
+additionalProperties: false
+
+examples:
+ - |
+ filter@56180900 {
+ compatible = "fsl,imx8qxp-dc-filter";
+ reg = <0x56180900 0x10>, <0x56183800 0x30>;
+ reg-names = "pec", "cfg";
+ };
diff --git a/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-framegen.yaml b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-framegen.yaml
new file mode 100644
index 000000000000..9d1dc3a9de90
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-framegen.yaml
@@ -0,0 +1,64 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/imx/fsl,imx8qxp-dc-framegen.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX8qxp Display Controller Frame Generator
+
+description:
+ The Frame Generator (FrameGen) module generates a programmable video timing
+ and optionally allows to synchronize the generated video timing to external
+ synchronization signals.
+
+maintainers:
+ - Liu Ying <victor.liu@nxp.com>
+
+properties:
+ compatible:
+ const: fsl,imx8qxp-dc-framegen
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 8
+
+ interrupt-names:
+ items:
+ - const: int0
+ - const: int1
+ - const: int2
+ - const: int3
+ - const: primsync_on
+ - const: primsync_off
+ - const: secsync_on
+ - const: secsync_off
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - interrupts
+ - interrupt-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/imx8-lpcg.h>
+ #include <dt-bindings/firmware/imx/rsrc.h>
+
+ framegen@5618b800 {
+ compatible = "fsl,imx8qxp-dc-framegen";
+ reg = <0x5618b800 0x98>;
+ clocks = <&dc0_disp_lpcg IMX_LPCG_CLK_0>;
+ interrupt-parent = <&dc0_intc>;
+ interrupts = <18>, <19>, <20>, <21>, <41>, <42>, <43>, <44>;
+ interrupt-names = "int0", "int1", "int2", "int3",
+ "primsync_on", "primsync_off",
+ "secsync_on", "secsync_off";
+ };
diff --git a/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-gammacor.yaml b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-gammacor.yaml
new file mode 100644
index 000000000000..25ad85742912
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-gammacor.yaml
@@ -0,0 +1,32 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/imx/fsl,imx8qxp-dc-gammacor.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX8qxp Display Controller Gamma Correction Unit
+
+description: The unit supports non-linear color transformation.
+
+maintainers:
+ - Liu Ying <victor.liu@nxp.com>
+
+properties:
+ compatible:
+ const: fsl,imx8qxp-dc-gammacor
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ gammacor@5618c000 {
+ compatible = "fsl,imx8qxp-dc-gammacor";
+ reg = <0x5618c000 0x20>;
+ };
diff --git a/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-layerblend.yaml b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-layerblend.yaml
new file mode 100644
index 000000000000..2a6ab8a0ed7f
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-layerblend.yaml
@@ -0,0 +1,39 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/imx/fsl,imx8qxp-dc-layerblend.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX8qxp Display Controller Layer Blend Unit
+
+description: Combines two input frames to a single output frame.
+
+maintainers:
+ - Liu Ying <victor.liu@nxp.com>
+
+properties:
+ compatible:
+ const: fsl,imx8qxp-dc-layerblend
+
+ reg:
+ maxItems: 2
+
+ reg-names:
+ items:
+ - const: pec
+ - const: cfg
+
+required:
+ - compatible
+ - reg
+ - reg-names
+
+additionalProperties: false
+
+examples:
+ - |
+ layerblend@56180ba0 {
+ compatible = "fsl,imx8qxp-dc-layerblend";
+ reg = <0x56180ba0 0x10>, <0x5618a400 0x20>;
+ reg-names = "pec", "cfg";
+ };
diff --git a/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-matrix.yaml b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-matrix.yaml
new file mode 100644
index 000000000000..d773389dd0dc
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-matrix.yaml
@@ -0,0 +1,44 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/imx/fsl,imx8qxp-dc-matrix.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX8qxp Display Controller Color Matrix
+
+description:
+ The unit supports linear color transformation, alpha pre-multiply and
+ alpha masking.
+
+maintainers:
+ - Liu Ying <victor.liu@nxp.com>
+
+properties:
+ compatible:
+ const: fsl,imx8qxp-dc-matrix
+
+ reg:
+ minItems: 1
+ maxItems: 2
+
+ reg-names:
+ oneOf:
+ - const: cfg # matrix in display engine
+ - items: # matrix in pixel engine
+ - const: pec
+ - const: cfg
+
+required:
+ - compatible
+ - reg
+ - reg-names
+
+additionalProperties: false
+
+examples:
+ - |
+ matrix@5618bc00 {
+ compatible = "fsl,imx8qxp-dc-matrix";
+ reg = <0x5618bc00 0x3c>;
+ reg-names = "cfg";
+ };
diff --git a/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-pixel-engine.yaml b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-pixel-engine.yaml
new file mode 100644
index 000000000000..633443a6cc38
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-pixel-engine.yaml
@@ -0,0 +1,250 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/imx/fsl,imx8qxp-dc-pixel-engine.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX8qxp Display Controller Pixel Engine
+
+description:
+ All Processing Units that operate in the AXI bus clock domain. Pixel
+ pipelines have the ability to stall when a destination is busy. Implements
+ all communication to memory resources and most of the image processing
+ functions. Interconnection of Processing Units is re-configurable.
+
+maintainers:
+ - Liu Ying <victor.liu@nxp.com>
+
+properties:
+ compatible:
+ const: fsl,imx8qxp-dc-pixel-engine
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 1
+
+ ranges: true
+
+patternProperties:
+ "^blit-engine@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ const: fsl,imx8qxp-dc-blit-engine
+
+ "^constframe@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ const: fsl,imx8qxp-dc-constframe
+
+ "^extdst@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ const: fsl,imx8qxp-dc-extdst
+
+ "^fetchdecode@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ const: fsl,imx8qxp-dc-fetchdecode
+
+ "^fetcheco@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ const: fsl,imx8qxp-dc-fetcheco
+
+ "^fetchlayer@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ const: fsl,imx8qxp-dc-fetchlayer
+
+ "^fetchwarp@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ const: fsl,imx8qxp-dc-fetchwarp
+
+ "^hscaler@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ const: fsl,imx8qxp-dc-hscaler
+
+ "^layerblend@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ const: fsl,imx8qxp-dc-layerblend
+
+ "^matrix@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ const: fsl,imx8qxp-dc-matrix
+
+ "^safety@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ const: fsl,imx8qxp-dc-safety
+
+ "^vscaler@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ const: fsl,imx8qxp-dc-vscaler
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - "#address-cells"
+ - "#size-cells"
+ - ranges
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/imx8-lpcg.h>
+
+ pixel-engine@56180800 {
+ compatible = "fsl,imx8qxp-dc-pixel-engine";
+ reg = <0x56180800 0xac00>;
+ clocks = <&dc0_lpcg IMX_LPCG_CLK_5>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ constframe@56180960 {
+ compatible = "fsl,imx8qxp-dc-constframe";
+ reg = <0x56180960 0xc>, <0x56184400 0x20>;
+ reg-names = "pec", "cfg";
+ };
+
+ extdst@56180980 {
+ compatible = "fsl,imx8qxp-dc-extdst";
+ reg = <0x56180980 0x1c>, <0x56184800 0x28>;
+ reg-names = "pec", "cfg";
+ interrupt-parent = <&dc0_intc>;
+ interrupts = <3>, <4>, <5>;
+ interrupt-names = "shdload", "framecomplete", "seqcomplete";
+ };
+
+ constframe@561809a0 {
+ compatible = "fsl,imx8qxp-dc-constframe";
+ reg = <0x561809a0 0xc>, <0x56184c00 0x20>;
+ reg-names = "pec", "cfg";
+ };
+
+ extdst@561809c0 {
+ compatible = "fsl,imx8qxp-dc-extdst";
+ reg = <0x561809c0 0x1c>, <0x56185000 0x28>;
+ reg-names = "pec", "cfg";
+ interrupt-parent = <&dc0_intc>;
+ interrupts = <6>, <7>, <8>;
+ interrupt-names = "shdload", "framecomplete", "seqcomplete";
+ };
+
+ constframe@561809e0 {
+ compatible = "fsl,imx8qxp-dc-constframe";
+ reg = <0x561809e0 0xc>, <0x56185400 0x20>;
+ reg-names = "pec", "cfg";
+ };
+
+ extdst@56180a00 {
+ compatible = "fsl,imx8qxp-dc-extdst";
+ reg = <0x56180a00 0x1c>, <0x56185800 0x28>;
+ reg-names = "pec", "cfg";
+ interrupt-parent = <&dc0_intc>;
+ interrupts = <9>, <10>, <11>;
+ interrupt-names = "shdload", "framecomplete", "seqcomplete";
+ };
+
+ constframe@56180a20 {
+ compatible = "fsl,imx8qxp-dc-constframe";
+ reg = <0x56180a20 0xc>, <0x56185c00 0x20>;
+ reg-names = "pec", "cfg";
+ };
+
+ extdst@56180a40 {
+ compatible = "fsl,imx8qxp-dc-extdst";
+ reg = <0x56180a40 0x1c>, <0x56186000 0x28>;
+ reg-names = "pec", "cfg";
+ interrupt-parent = <&dc0_intc>;
+ interrupts = <12>, <13>, <14>;
+ interrupt-names = "shdload", "framecomplete", "seqcomplete";
+ };
+
+ fetchwarp@56180a60 {
+ compatible = "fsl,imx8qxp-dc-fetchwarp";
+ reg = <0x56180a60 0x10>, <0x56186400 0x190>;
+ reg-names = "pec", "cfg";
+ };
+
+ fetchlayer@56180ac0 {
+ compatible = "fsl,imx8qxp-dc-fetchlayer";
+ reg = <0x56180ac0 0xc>, <0x56188400 0x404>;
+ reg-names = "pec", "cfg";
+ };
+
+ layerblend@56180ba0 {
+ compatible = "fsl,imx8qxp-dc-layerblend";
+ reg = <0x56180ba0 0x10>, <0x5618a400 0x20>;
+ reg-names = "pec", "cfg";
+ };
+
+ layerblend@56180bc0 {
+ compatible = "fsl,imx8qxp-dc-layerblend";
+ reg = <0x56180bc0 0x10>, <0x5618a800 0x20>;
+ reg-names = "pec", "cfg";
+ };
+
+ layerblend@56180be0 {
+ compatible = "fsl,imx8qxp-dc-layerblend";
+ reg = <0x56180be0 0x10>, <0x5618ac00 0x20>;
+ reg-names = "pec", "cfg";
+ };
+
+ layerblend@56180c00 {
+ compatible = "fsl,imx8qxp-dc-layerblend";
+ reg = <0x56180c00 0x10>, <0x5618b000 0x20>;
+ reg-names = "pec", "cfg";
+ };
+ };
diff --git a/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-rop.yaml b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-rop.yaml
new file mode 100644
index 000000000000..7115950ecae0
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-rop.yaml
@@ -0,0 +1,43 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/imx/fsl,imx8qxp-dc-rop.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX8qxp Display Controller Raster Operation Unit
+
+description: |
+ The unit can combine up to three input frames to a single output frame, all
+ having the same dimension.
+
+ The unit supports logic operations, arithmetic operations and packing.
+
+maintainers:
+ - Liu Ying <victor.liu@nxp.com>
+
+properties:
+ compatible:
+ const: fsl,imx8qxp-dc-rop
+
+ reg:
+ maxItems: 2
+
+ reg-names:
+ items:
+ - const: pec
+ - const: cfg
+
+required:
+ - compatible
+ - reg
+ - reg-names
+
+additionalProperties: false
+
+examples:
+ - |
+ rop@56180860 {
+ compatible = "fsl,imx8qxp-dc-rop";
+ reg = <0x56180860 0x10>, <0x56182000 0x20>;
+ reg-names = "pec", "cfg";
+ };
diff --git a/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-safety.yaml b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-safety.yaml
new file mode 100644
index 000000000000..66c12948ab09
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-safety.yaml
@@ -0,0 +1,34 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/imx/fsl,imx8qxp-dc-safety.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX8qxp Display Controller Safety Unit
+
+description:
+ The unit allows corresponding processing units to be configured in a path
+ leading to multiple endpoints.
+
+maintainers:
+ - Liu Ying <victor.liu@nxp.com>
+
+properties:
+ compatible:
+ const: fsl,imx8qxp-dc-safety
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ safety@56180800 {
+ compatible = "fsl,imx8qxp-dc-safety";
+ reg = <0x56180800 0x1c>;
+ };
diff --git a/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-scaling-engine.yaml b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-scaling-engine.yaml
new file mode 100644
index 000000000000..76cbe11a6364
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-scaling-engine.yaml
@@ -0,0 +1,83 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/imx/fsl,imx8qxp-dc-scaling-engine.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX8qxp Display Controller Scaling Engine
+
+description: |
+ The unit can change the dimension of the input frame by nearest or linear
+ re-sampling with 1/32 sub pixel precision.
+
+ Internally it consist of two independent blocks for horizontal and vertical
+ scaling. The sequence of both operations is arbitrary.
+
+ Any frame dimensions between 1 and 16384 pixels in width and height are
+ supported, except that the vertical scaler has a frame width maximum
+ depending of the system's functional limitations.
+
+ In general all scale factors are supported inside the supported frame
+ dimensions. In range of scale factors 1/16..16 the filtered output colors
+ are LSBit precise (e.g. DC ripple free).
+
+ +-----------+
+ | Line |
+ | Buffer |
+ +-----------+
+ ^
+ |
+ V
+ |\ +-----------+
+ ------+ | | |
+ | | +-->| Vertical |----
+ | ----+ | | Scaler | |
+ | | |/ +-----------+ |
+ | | |
+ | | |
+ | | | |\
+ | ------------- -------------+-----+ |
+ Input --+ X | +--> Output
+ | ------------- -------------+-----+ |
+ | | | |/
+ | | |
+ | | |\ +-----------+ |
+ | ----+ | | | |
+ | | +-->| Horizontal|----
+ ------+ | | Scaler |
+ |/ +-----------+
+
+ The unit supports downscaling, upscaling, sub pixel translation and bob
+ de-interlacing.
+
+maintainers:
+ - Liu Ying <victor.liu@nxp.com>
+
+properties:
+ compatible:
+ enum:
+ - fsl,imx8qxp-dc-hscaler
+ - fsl,imx8qxp-dc-vscaler
+
+ reg:
+ maxItems: 2
+
+ reg-names:
+ items:
+ - const: pec
+ - const: cfg
+
+required:
+ - compatible
+ - reg
+ - reg-names
+
+additionalProperties: false
+
+examples:
+ - |
+ hscaler@561808c0 {
+ compatible = "fsl,imx8qxp-dc-hscaler";
+ reg = <0x561808c0 0x10>, <0x56183000 0x18>;
+ reg-names = "pec", "cfg";
+ };
diff --git a/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-signature.yaml b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-signature.yaml
new file mode 100644
index 000000000000..c495822fdc80
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-signature.yaml
@@ -0,0 +1,53 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/imx/fsl,imx8qxp-dc-signature.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX8qxp Display Controller Signature Unit
+
+description: |
+ In order to control the correctness of display output, signature values can
+ be computed for each frame and compared against reference values. In case of
+ a mismatch (signature violation) a HW event can be triggered, for example a
+ SW interrupt.
+
+ This unit supports signature computation, reference check, evaluation windows,
+ alpha masking and panic modes.
+
+maintainers:
+ - Liu Ying <victor.liu@nxp.com>
+
+properties:
+ compatible:
+ const: fsl,imx8qxp-dc-signature
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 3
+
+ interrupt-names:
+ items:
+ - const: shdload
+ - const: valid
+ - const: error
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - interrupt-names
+
+additionalProperties: false
+
+examples:
+ - |
+ signature@5618d000 {
+ compatible = "fsl,imx8qxp-dc-signature";
+ reg = <0x5618d000 0x140>;
+ interrupt-parent = <&dc0_intc>;
+ interrupts = <22>, <23>, <24>;
+ interrupt-names = "shdload", "valid", "error";
+ };
diff --git a/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-store.yaml b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-store.yaml
new file mode 100644
index 000000000000..42d1b10906be
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-store.yaml
@@ -0,0 +1,96 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/imx/fsl,imx8qxp-dc-store.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX8qxp Display Controller Store Unit
+
+description: |
+ The Store unit is the interface between the internal pixel processing
+ pipeline, which is 30-bit RGB plus 8-bit Alpha, and the AXI bus for
+ destination buffer access. It is used for the destination of Blit Engines.
+ It comprises a set of built-in functions to generate a wide range of buffer
+ formats. Note, that these are exactly inverse to corresponding functions in
+ the Fetch Unit.
+
+ +------X-------------------------+
+ | | Store Unit |
+ | V |
+ | +-------+ |
+ | | Gamma | Gamma apply |
+ | +-------+ |
+ | | |
+ | V |
+ | +-------+ |
+ | | Color | RGB to YUV |
+ | +-------+ |
+ | | |
+ | V |
+ | +-------+ |
+ | | Chroma| YUV444 to 422 |
+ | +-------+ |
+ | | |
+ | V |
+ | +-------+ |
+ | | Reduce| Bit width reduction |
+ | | | dithering |
+ | +-------+ |
+ | | |
+ | V |
+ | +-------+ |
+ | | Pack | RGBA/YUV to RAW |
+ | | Encode| or Compression |
+ | +-------+ |
+ | | |
+ | V |
+ +------X-------------------------+
+
+maintainers:
+ - Liu Ying <victor.liu@nxp.com>
+
+properties:
+ compatible:
+ const: fsl,imx8qxp-dc-store
+
+ reg:
+ maxItems: 2
+
+ reg-names:
+ items:
+ - const: pec
+ - const: cfg
+
+ interrupts:
+ maxItems: 3
+
+ interrupt-names:
+ items:
+ - const: shdload
+ - const: framecomplete
+ - const: seqcomplete
+
+ fsl,lts:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description:
+ Optional Linear Tile Store associated with the Store Unit.
+
+required:
+ - compatible
+ - reg
+ - reg-names
+ - interrupts
+ - interrupt-names
+
+additionalProperties: false
+
+examples:
+ - |
+ store@56180940 {
+ compatible = "fsl,imx8qxp-dc-store";
+ reg = <0x56180940 0x1c>, <0x56184000 0x5c>;
+ reg-names = "pec", "cfg";
+ interrupt-parent = <&dc0_intc>;
+ interrupts = <0>, <1>, <2>;
+ interrupt-names = "shdload", "framecomplete", "seqcomplete";
+ };
diff --git a/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-tcon.yaml b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-tcon.yaml
new file mode 100644
index 000000000000..7a3b77ea92c7
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-tcon.yaml
@@ -0,0 +1,45 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/imx/fsl,imx8qxp-dc-tcon.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX8qxp Display Controller Timing Controller
+
+description:
+ The TCon can generate a wide range of customized synchronization signals and
+ does the mapping of the color bits to the output.
+
+maintainers:
+ - Liu Ying <victor.liu@nxp.com>
+
+properties:
+ compatible:
+ const: fsl,imx8qxp-dc-tcon
+
+ reg:
+ maxItems: 1
+
+ port:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: video output
+
+required:
+ - compatible
+ - reg
+ - port
+
+additionalProperties: false
+
+examples:
+ - |
+ tcon@5618c800 {
+ compatible = "fsl,imx8qxp-dc-tcon";
+ reg = <0x5618c800 0x588>;
+
+ port {
+ dc0_disp0_dc0_pixel_combiner_ch0: endpoint {
+ remote-endpoint = <&dc0_pixel_combiner_ch0_dc0_disp0>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc.yaml b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc.yaml
new file mode 100644
index 000000000000..0a72f9f0b5fd
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc.yaml
@@ -0,0 +1,236 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/imx/fsl,imx8qxp-dc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX8qxp Display Controller
+
+description: |
+ The Freescale i.MX8qxp Display Controller(DC) is comprised of three main
+ components that include a blit engine for 2D graphics accelerations, display
+ controller for display output processing, as well as a command sequencer.
+
+ Display buffers Source buffers
+ (AXI read master) (AXI read master)
+ | .......... | | | |
+ +---------------------------+------------+------------------+-+-+------+
+ | Display Controller (DC) | .......... | | | | |
+ | | | | | | |
+ | @@@@@@@@@@@ +----------+------------+------------+ | | | |
+ A | | Command | | V V | | | | |
+ X <-+->| Sequencer | | @@@@@@@@@@@@@@@@@@@@@@@@@@@@ | V V V |
+ I | | (AXI CLK) | | | | | @@@@@@@@@@ |
+ | @@@@@@@@@@@ | | Pixel Engine | | | | |
+ | | | | (AXI CLK) | | | | |
+ | V | @@@@@@@@@@@@@@@@@@@@@@@@@@@@ | | | |
+ A | *********** | | | | | | | Blit | |
+ H <-+->| Configure | | V V V V | | Engine | |
+ B | | (CFG CLK) | | 00000000000 11111111111 | | (AXI CLK)| |
+ | *********** | | Display | | Display | | | | |
+ | | | Engine | | Engine | | | | |
+ | | | (Disp CLK)| | (Disp CLK)| | | | |
+ | @@@@@@@@@@@ | 00000000000 11111111111 | @@@@@@@@@@ |
+ I | | Common | | | | | | |
+ R <-+--| Control | | | Display | | | |
+ Q | | (AXI CLK) | | | Controller | | | |
+ | @@@@@@@@@@@ +------------------------------------+ | |
+ | | | ^ | |
+ +--------------------------+----------------+-------+---------+--------+
+ ^ | | | |
+ | V V | V
+ Clocks & Resets Display Display Panic Destination
+ Output0 Output1 Control buffer
+ (AXI write master)
+
+maintainers:
+ - Liu Ying <victor.liu@nxp.com>
+
+properties:
+ compatible:
+ const: fsl,imx8qxp-dc
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ resets:
+ maxItems: 2
+
+ reset-names:
+ items:
+ - const: axi
+ - const: cfg
+
+ power-domains:
+ maxItems: 1
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 1
+
+ ranges: true
+
+patternProperties:
+ "^command-sequencer@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ const: fsl,imx8qxp-dc-command-sequencer
+
+ "^display-engine@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ const: fsl,imx8qxp-dc-display-engine
+
+ "^interrupt-controller@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ const: fsl,imx8qxp-dc-intc
+
+ "^pixel-engine@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ const: fsl,imx8qxp-dc-pixel-engine
+
+ "^pmu@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ const: fsl,imx8qxp-dc-axi-performance-counter
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - power-domains
+ - "#address-cells"
+ - "#size-cells"
+ - ranges
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/imx8-lpcg.h>
+ #include <dt-bindings/firmware/imx/rsrc.h>
+
+ display-controller@56180000 {
+ compatible = "fsl,imx8qxp-dc";
+ reg = <0x56180000 0x40000>;
+ clocks = <&dc0_lpcg IMX_LPCG_CLK_4>;
+ power-domains = <&pd IMX_SC_R_DC_0>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ interrupt-controller@56180040 {
+ compatible = "fsl,imx8qxp-dc-intc";
+ reg = <0x56180040 0x60>;
+ clocks = <&dc0_lpcg IMX_LPCG_CLK_5>;
+ interrupt-controller;
+ interrupt-parent = <&dc0_irqsteer>;
+ #interrupt-cells = <1>;
+ interrupts = <448>, <449>, <450>, <64>,
+ <65>, <66>, <67>, <68>,
+ <69>, <70>, <193>, <194>,
+ <195>, <196>, <197>, <72>,
+ <73>, <74>, <75>, <76>,
+ <77>, <78>, <79>, <80>,
+ <81>, <199>, <200>, <201>,
+ <202>, <203>, <204>, <205>,
+ <206>, <207>, <208>, <5>,
+ <0>, <1>, <2>, <3>,
+ <4>, <82>, <83>, <84>,
+ <85>, <209>, <210>, <211>,
+ <212>;
+ interrupt-names = "store9_shdload",
+ "store9_framecomplete",
+ "store9_seqcomplete",
+ "extdst0_shdload",
+ "extdst0_framecomplete",
+ "extdst0_seqcomplete",
+ "extdst4_shdload",
+ "extdst4_framecomplete",
+ "extdst4_seqcomplete",
+ "extdst1_shdload",
+ "extdst1_framecomplete",
+ "extdst1_seqcomplete",
+ "extdst5_shdload",
+ "extdst5_framecomplete",
+ "extdst5_seqcomplete",
+ "disengcfg_shdload0",
+ "disengcfg_framecomplete0",
+ "disengcfg_seqcomplete0",
+ "framegen0_int0",
+ "framegen0_int1",
+ "framegen0_int2",
+ "framegen0_int3",
+ "sig0_shdload",
+ "sig0_valid",
+ "sig0_error",
+ "disengcfg_shdload1",
+ "disengcfg_framecomplete1",
+ "disengcfg_seqcomplete1",
+ "framegen1_int0",
+ "framegen1_int1",
+ "framegen1_int2",
+ "framegen1_int3",
+ "sig1_shdload",
+ "sig1_valid",
+ "sig1_error",
+ "reserved",
+ "cmdseq_error",
+ "comctrl_sw0",
+ "comctrl_sw1",
+ "comctrl_sw2",
+ "comctrl_sw3",
+ "framegen0_primsync_on",
+ "framegen0_primsync_off",
+ "framegen0_secsync_on",
+ "framegen0_secsync_off",
+ "framegen1_primsync_on",
+ "framegen1_primsync_off",
+ "framegen1_secsync_on",
+ "framegen1_secsync_off";
+ };
+
+ pixel-engine@56180800 {
+ compatible = "fsl,imx8qxp-dc-pixel-engine";
+ reg = <0x56180800 0xac00>;
+ clocks = <&dc0_lpcg IMX_LPCG_CLK_5>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+ };
+
+ display-engine@5618b400 {
+ compatible = "fsl,imx8qxp-dc-display-engine";
+ reg = <0x5618b400 0x14>, <0x5618b800 0x1c00>;
+ reg-names = "top", "cfg";
+ interrupt-parent = <&dc0_intc>;
+ interrupts = <15>, <16>, <17>;
+ interrupt-names = "shdload", "framecomplete", "seqcomplete";
+ power-domains = <&pd IMX_SC_R_DC_0_PLL_0>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/display/imx/fsl-imx-drm.txt b/Documentation/devicetree/bindings/display/imx/fsl-imx-drm.txt
deleted file mode 100644
index 3c35338a2867..000000000000
--- a/Documentation/devicetree/bindings/display/imx/fsl-imx-drm.txt
+++ /dev/null
@@ -1,162 +0,0 @@
-Freescale i.MX DRM master device
-================================
-
-The freescale i.MX DRM master device is a virtual device needed to list all
-IPU or other display interface nodes that comprise the graphics subsystem.
-
-Required properties:
-- compatible: Should be "fsl,imx-display-subsystem"
-- ports: Should contain a list of phandles pointing to display interface ports
- of IPU devices
-
-example:
-
-display-subsystem {
- compatible = "fsl,imx-display-subsystem";
- ports = <&ipu_di0>;
-};
-
-
-Freescale i.MX IPUv3
-====================
-
-Required properties:
-- compatible: Should be "fsl,<chip>-ipu" where <chip> is one of
- - imx51
- - imx53
- - imx6q
- - imx6qp
-- reg: should be register base and length as documented in the
- datasheet
-- interrupts: Should contain sync interrupt and error interrupt,
- in this order.
-- resets: phandle pointing to the system reset controller and
- reset line index, see reset/fsl,imx-src.txt for details
-Additional required properties for fsl,imx6qp-ipu:
-- fsl,prg: phandle to prg node associated with this IPU instance
-Optional properties:
-- port@[0-3]: Port nodes with endpoint definitions as defined in
- Documentation/devicetree/bindings/media/video-interfaces.txt.
- Ports 0 and 1 should correspond to CSI0 and CSI1,
- ports 2 and 3 should correspond to DI0 and DI1, respectively.
-
-example:
-
-ipu: ipu@18000000 {
- #address-cells = <1>;
- #size-cells = <0>;
- compatible = "fsl,imx53-ipu";
- reg = <0x18000000 0x080000000>;
- interrupts = <11 10>;
- resets = <&src 2>;
-
- ipu_di0: port@2 {
- reg = <2>;
-
- ipu_di0_disp0: endpoint {
- remote-endpoint = <&display_in>;
- };
- };
-};
-
-Freescale i.MX PRE (Prefetch Resolve Engine)
-============================================
-
-Required properties:
-- compatible: should be "fsl,imx6qp-pre"
-- reg: should be register base and length as documented in the
- datasheet
-- clocks : phandle to the PRE axi clock input, as described
- in Documentation/devicetree/bindings/clock/clock-bindings.txt and
- Documentation/devicetree/bindings/clock/imx6q-clock.yaml.
-- clock-names: should be "axi"
-- interrupts: should contain the PRE interrupt
-- fsl,iram: phandle pointing to the mmio-sram device node, that should be
- used for the PRE SRAM double buffer.
-
-example:
-
-pre@21c8000 {
- compatible = "fsl,imx6qp-pre";
- reg = <0x021c8000 0x1000>;
- interrupts = <GIC_SPI 90 IRQ_TYPE_EDGE_RISING>;
- clocks = <&clks IMX6QDL_CLK_PRE0>;
- clock-names = "axi";
- fsl,iram = <&ocram2>;
-};
-
-Freescale i.MX PRG (Prefetch Resolve Gasket)
-============================================
-
-Required properties:
-- compatible: should be "fsl,imx6qp-prg"
-- reg: should be register base and length as documented in the
- datasheet
-- clocks : phandles to the PRG ipg and axi clock inputs, as described
- in Documentation/devicetree/bindings/clock/clock-bindings.txt and
- Documentation/devicetree/bindings/clock/imx6q-clock.yaml.
-- clock-names: should be "ipg" and "axi"
-- fsl,pres: phandles to the PRE units attached to this PRG, with the fixed
- PRE as the first entry and the muxable PREs following.
-
-example:
-
-prg@21cc000 {
- compatible = "fsl,imx6qp-prg";
- reg = <0x021cc000 0x1000>;
- clocks = <&clks IMX6QDL_CLK_PRG0_APB>,
- <&clks IMX6QDL_CLK_PRG0_AXI>;
- clock-names = "ipg", "axi";
- fsl,pres = <&pre1>, <&pre2>, <&pre3>;
-};
-
-Parallel display support
-========================
-
-Required properties:
-- compatible: Should be "fsl,imx-parallel-display"
-Optional properties:
-- interface-pix-fmt: How this display is connected to the
- display interface. Currently supported types: "rgb24", "rgb565", "bgr666"
- and "lvds666".
-- edid: verbatim EDID data block describing attached display.
-- ddc: phandle describing the i2c bus handling the display data
- channel
-- port@[0-1]: Port nodes with endpoint definitions as defined in
- Documentation/devicetree/bindings/media/video-interfaces.txt.
- Port 0 is the input port connected to the IPU display interface,
- port 1 is the output port connected to a panel.
-
-example:
-
-disp0 {
- compatible = "fsl,imx-parallel-display";
- edid = [edid-data];
- interface-pix-fmt = "rgb24";
-
- port@0 {
- reg = <0>;
-
- display_in: endpoint {
- remote-endpoint = <&ipu_di0_disp0>;
- };
- };
-
- port@1 {
- reg = <1>;
-
- display_out: endpoint {
- remote-endpoint = <&panel_in>;
- };
- };
-};
-
-panel {
- ...
-
- port {
- panel_in: endpoint {
- remote-endpoint = <&display_out>;
- };
- };
-};
diff --git a/Documentation/devicetree/bindings/display/imx/ldb.txt b/Documentation/devicetree/bindings/display/imx/ldb.txt
deleted file mode 100644
index 8e6e7d797943..000000000000
--- a/Documentation/devicetree/bindings/display/imx/ldb.txt
+++ /dev/null
@@ -1,147 +0,0 @@
-Device-Tree bindings for LVDS Display Bridge (ldb)
-
-LVDS Display Bridge
-===================
-
-The LVDS Display Bridge device tree node contains up to two lvds-channel
-nodes describing each of the two LVDS encoder channels of the bridge.
-
-Required properties:
- - #address-cells : should be <1>
- - #size-cells : should be <0>
- - compatible : should be "fsl,imx53-ldb" or "fsl,imx6q-ldb".
- Both LDB versions are similar, but i.MX6 has an additional
- multiplexer in the front to select any of the four IPU display
- interfaces as input for each LVDS channel.
- - gpr : should be <&gpr> on i.MX53 and i.MX6q.
- The phandle points to the iomuxc-gpr region containing the LVDS
- control register.
-- clocks, clock-names : phandles to the LDB divider and selector clocks and to
- the display interface selector clocks, as described in
- Documentation/devicetree/bindings/clock/clock-bindings.txt
- The following clocks are expected on i.MX53:
- "di0_pll" - LDB LVDS channel 0 mux
- "di1_pll" - LDB LVDS channel 1 mux
- "di0" - LDB LVDS channel 0 gate
- "di1" - LDB LVDS channel 1 gate
- "di0_sel" - IPU1 DI0 mux
- "di1_sel" - IPU1 DI1 mux
- On i.MX6q the following additional clocks are needed:
- "di2_sel" - IPU2 DI0 mux
- "di3_sel" - IPU2 DI1 mux
- The needed clock numbers for each are documented in
- Documentation/devicetree/bindings/clock/imx5-clock.yaml, and in
- Documentation/devicetree/bindings/clock/imx6q-clock.yaml.
-
-Optional properties:
- - pinctrl-names : should be "default" on i.MX53, not used on i.MX6q
- - pinctrl-0 : a phandle pointing to LVDS pin settings on i.MX53,
- not used on i.MX6q
- - fsl,dual-channel : boolean. if it exists, only LVDS channel 0 should
- be configured - one input will be distributed on both outputs in dual
- channel mode
-
-LVDS Channel
-============
-
-Each LVDS Channel has to contain either an of graph link to a panel device node
-or a display-timings node that describes the video timings for the connected
-LVDS display as well as the fsl,data-mapping and fsl,data-width properties.
-
-Required properties:
- - reg : should be <0> or <1>
- - port: Input and output port nodes with endpoint definitions as defined in
- Documentation/devicetree/bindings/graph.txt.
- On i.MX5, the internal two-input-multiplexer is used. Due to hardware
- limitations, only one input port (port@[0,1]) can be used for each channel
- (lvds-channel@[0,1], respectively).
- On i.MX6, there should be four input ports (port@[0-3]) that correspond
- to the four LVDS multiplexer inputs.
- A single output port (port@2 on i.MX5, port@4 on i.MX6) must be connected
- to a panel input port. Optionally, the output port can be left out if
- display-timings are used instead.
-
-Optional properties (required if display-timings are used):
- - ddc-i2c-bus: phandle of an I2C controller used for DDC EDID probing
- - display-timings : A node that describes the display timings as defined in
- Documentation/devicetree/bindings/display/panel/display-timing.txt.
- - fsl,data-mapping : should be "spwg" or "jeida"
- This describes how the color bits are laid out in the
- serialized LVDS signal.
- - fsl,data-width : should be <18> or <24>
-
-example:
-
-gpr: iomuxc-gpr@53fa8000 {
- /* ... */
-};
-
-ldb: ldb@53fa8008 {
- #address-cells = <1>;
- #size-cells = <0>;
- compatible = "fsl,imx53-ldb";
- gpr = <&gpr>;
- clocks = <&clks IMX5_CLK_LDB_DI0_SEL>,
- <&clks IMX5_CLK_LDB_DI1_SEL>,
- <&clks IMX5_CLK_IPU_DI0_SEL>,
- <&clks IMX5_CLK_IPU_DI1_SEL>,
- <&clks IMX5_CLK_LDB_DI0_GATE>,
- <&clks IMX5_CLK_LDB_DI1_GATE>;
- clock-names = "di0_pll", "di1_pll",
- "di0_sel", "di1_sel",
- "di0", "di1";
-
- /* Using an of-graph endpoint link to connect the panel */
- lvds-channel@0 {
- #address-cells = <1>;
- #size-cells = <0>;
- reg = <0>;
-
- port@0 {
- reg = <0>;
-
- lvds0_in: endpoint {
- remote-endpoint = <&ipu_di0_lvds0>;
- };
- };
-
- port@2 {
- reg = <2>;
-
- lvds0_out: endpoint {
- remote-endpoint = <&panel_in>;
- };
- };
- };
-
- /* Using display-timings and fsl,data-mapping/width instead */
- lvds-channel@1 {
- #address-cells = <1>;
- #size-cells = <0>;
- reg = <1>;
- fsl,data-mapping = "spwg";
- fsl,data-width = <24>;
-
- display-timings {
- /* ... */
- };
-
- port@1 {
- reg = <1>;
-
- lvds1_in: endpoint {
- remote-endpoint = <&ipu_di1_lvds1>;
- };
- };
- };
-};
-
-panel: lvds-panel {
- /* ... */
-
- port {
- panel_in: endpoint {
- remote-endpoint = <&lvds0_out>;
- };
- };
-};
diff --git a/Documentation/devicetree/bindings/display/lvds-data-mapping.yaml b/Documentation/devicetree/bindings/display/lvds-data-mapping.yaml
new file mode 100644
index 000000000000..ab842594feb9
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/lvds-data-mapping.yaml
@@ -0,0 +1,115 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/lvds-data-mapping.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: LVDS Data Mapping
+
+maintainers:
+ - Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
+ - Thierry Reding <thierry.reding@gmail.com>
+
+description: |
+ LVDS is a physical layer specification defined in ANSI/TIA/EIA-644-A. Multiple
+ incompatible data link layers have been used over time to transmit image data
+ to LVDS devices. This bindings supports devices compatible with the following
+ specifications.
+
+ [JEIDA] "Digital Interface Standards for Monitor", JEIDA-59-1999, February
+ 1999 (Version 1.0), Japan Electronic Industry Development Association (JEIDA)
+ [LDI] "Open LVDS Display Interface", May 1999 (Version 0.95), National
+ Semiconductor
+ [VESA] "VESA Notebook Panel Standard", October 2007 (Version 1.0), Video
+ Electronics Standards Association (VESA)
+
+ Device compatible with those specifications have been marketed under the
+ FPD-Link and FlatLink brands.
+
+ This bindings also supports 30-bit data mapping compatible with JEIDA and
+ VESA.
+
+properties:
+ data-mapping:
+ enum:
+ - jeida-18
+ - jeida-24
+ - jeida-30
+ - vesa-24
+ - vesa-30
+ description: |
+ The color signals mapping order.
+
+ LVDS data mappings are defined as follows.
+
+ - "jeida-18" - 18-bit data mapping compatible with the [JEIDA], [LDI] and
+ [VESA] specifications. Data are transferred as follows on 3 LVDS lanes.
+
+ Slot 0 1 2 3 4 5 6
+ ________________ _________________
+ Clock \_______________________/
+ ______ ______ ______ ______ ______ ______ ______
+ DATA0 ><__G0__><__R5__><__R4__><__R3__><__R2__><__R1__><__R0__><
+ DATA1 ><__B1__><__B0__><__G5__><__G4__><__G3__><__G2__><__G1__><
+ DATA2 ><_CTL2_><_CTL1_><_CTL0_><__B5__><__B4__><__B3__><__B2__><
+
+ - "jeida-24" - 24-bit data mapping compatible with the [DSIM] and [LDI]
+ specifications. Data are transferred as follows on 4 LVDS lanes.
+
+ Slot 0 1 2 3 4 5 6
+ ________________ _________________
+ Clock \_______________________/
+ ______ ______ ______ ______ ______ ______ ______
+ DATA0 ><__G2__><__R7__><__R6__><__R5__><__R4__><__R3__><__R2__><
+ DATA1 ><__B3__><__B2__><__G7__><__G6__><__G5__><__G4__><__G3__><
+ DATA2 ><_CTL2_><_CTL1_><_CTL0_><__B7__><__B6__><__B5__><__B4__><
+ DATA3 ><_CTL3_><__B1__><__B0__><__G1__><__G0__><__R1__><__R0__><
+
+ - "jeida-30" - 30-bit data mapping compatible with JEIDA and VESA. Data
+ are transferred as follows on 5 LVDS lanes.
+
+ Slot 0 1 2 3 4 5 6
+ ________________ _________________
+ Clock \_______________________/
+ ______ ______ ______ ______ ______ ______ ______
+ DATA0 ><__G4__><__R9__><__R8__><__R7__><__R6__><__R5__><__R4__><
+ DATA1 ><__B5__><__B4__><__G9__><__G8__><__G7__><__G6__><__G5__><
+ DATA2 ><_CTL2_><_CTL1_><_CTL0_><__B9__><__B8__><__B7__><__B6__><
+ DATA3 ><_CTL3_><__B3__><__B2__><__G3__><__G2__><__R3__><__R2__><
+ DATA4 ><_CTL3_><__B1__><__B0__><__G1__><__G0__><__R1__><__R0__><
+
+ - "vesa-24" - 24-bit data mapping compatible with the [VESA] specification.
+ Data are transferred as follows on 4 LVDS lanes.
+
+ Slot 0 1 2 3 4 5 6
+ ________________ _________________
+ Clock \_______________________/
+ ______ ______ ______ ______ ______ ______ ______
+ DATA0 ><__G0__><__R5__><__R4__><__R3__><__R2__><__R1__><__R0__><
+ DATA1 ><__B1__><__B0__><__G5__><__G4__><__G3__><__G2__><__G1__><
+ DATA2 ><_CTL2_><_CTL1_><_CTL0_><__B5__><__B4__><__B3__><__B2__><
+ DATA3 ><_CTL3_><__B7__><__B6__><__G7__><__G6__><__R7__><__R6__><
+
+ - "vesa-30" - 30-bit data mapping compatible with VESA. Data are
+ transferred as follows on 5 LVDS lanes.
+
+ Slot 0 1 2 3 4 5 6
+ ________________ _________________
+ Clock \_______________________/
+ ______ ______ ______ ______ ______ ______ ______
+ DATA0 ><__G0__><__R5__><__R4__><__R3__><__R2__><__R1__><__R0__><
+ DATA1 ><__B1__><__B0__><__G5__><__G4__><__G3__><__G2__><__G1__><
+ DATA2 ><_CTL2_><_CTL1_><_CTL0_><__B5__><__B4__><__B3__><__B2__><
+ DATA3 ><_CTL3_><__B7__><__B6__><__G7__><__G6__><__R7__><__R6__><
+ DATA4 ><_CTL3_><__B9__><__B8__><__G9__><__G8__><__R9__><__R8__><
+
+ Control signals are mapped as follows.
+
+ CTL0: HSync
+ CTL1: VSync
+ CTL2: Data Enable
+ CTL3: 0
+
+additionalProperties: true
+
+...
diff --git a/Documentation/devicetree/bindings/display/lvds-dual-ports.yaml b/Documentation/devicetree/bindings/display/lvds-dual-ports.yaml
new file mode 100644
index 000000000000..785701fe1590
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/lvds-dual-ports.yaml
@@ -0,0 +1,63 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/lvds-dual-ports.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Dual-link LVDS Display Common Properties
+
+maintainers:
+ - Liu Ying <victor.liu@nxp.com>
+
+description: |
+ Common properties for LVDS displays with dual LVDS links. Extend LVDS display
+ common properties defined in lvds.yaml.
+
+ Dual-link LVDS displays receive odd pixels and even pixels separately from
+ the dual LVDS links. One link receives odd pixels and the other receives
+ even pixels. Some of those displays may also use only one LVDS link to
+ receive all pixels, being odd and even agnostic.
+
+allOf:
+ - $ref: lvds.yaml#
+
+properties:
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+
+ patternProperties:
+ '^port@[01]$':
+ $ref: /schemas/graph.yaml#/$defs/port-base
+ unevaluatedProperties: false
+ description: |
+ port@0 represents the first LVDS input link.
+ port@1 represents the second LVDS input link.
+
+ properties:
+ dual-lvds-odd-pixels:
+ type: boolean
+ description: LVDS input link for odd pixels
+
+ dual-lvds-even-pixels:
+ type: boolean
+ description: LVDS input link for even pixels
+
+ oneOf:
+ - required: [dual-lvds-odd-pixels]
+ - required: [dual-lvds-even-pixels]
+ - properties:
+ dual-lvds-odd-pixels: false
+ dual-lvds-even-pixels: false
+
+ anyOf:
+ - required:
+ - port@0
+ - required:
+ - port@1
+
+required:
+ - ports
+
+additionalProperties: true
+
+...
diff --git a/Documentation/devicetree/bindings/display/lvds.yaml b/Documentation/devicetree/bindings/display/lvds.yaml
index 7cd2ce7e9c33..b74efbea3be2 100644
--- a/Documentation/devicetree/bindings/display/lvds.yaml
+++ b/Documentation/devicetree/bindings/display/lvds.yaml
@@ -6,83 +6,24 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: LVDS Display Common Properties
+allOf:
+ - $ref: lvds-data-mapping.yaml#
+
maintainers:
- Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
- Thierry Reding <thierry.reding@gmail.com>
-description: |+
- LVDS is a physical layer specification defined in ANSI/TIA/EIA-644-A. Multiple
- incompatible data link layers have been used over time to transmit image data
- to LVDS devices. This bindings supports devices compatible with the following
- specifications.
-
- [JEIDA] "Digital Interface Standards for Monitor", JEIDA-59-1999, February
- 1999 (Version 1.0), Japan Electronic Industry Development Association (JEIDA)
- [LDI] "Open LVDS Display Interface", May 1999 (Version 0.95), National
- Semiconductor
- [VESA] "VESA Notebook Panel Standard", October 2007 (Version 1.0), Video
- Electronics Standards Association (VESA)
-
- Device compatible with those specifications have been marketed under the
- FPD-Link and FlatLink brands.
+description:
+ This binding extends the data mapping defined in lvds-data-mapping.yaml.
+ It supports reversing the bit order on the formats defined there in order
+ to accommodate for even more specialized data formats, since a variety of
+ data formats and layouts is used to drive LVDS displays.
properties:
- data-mapping:
- enum:
- - jeida-18
- - jeida-24
- - vesa-24
- description: |
- The color signals mapping order.
-
- LVDS data mappings are defined as follows.
-
- - "jeida-18" - 18-bit data mapping compatible with the [JEIDA], [LDI] and
- [VESA] specifications. Data are transferred as follows on 3 LVDS lanes.
-
- Slot 0 1 2 3 4 5 6
- ________________ _________________
- Clock \_______________________/
- ______ ______ ______ ______ ______ ______ ______
- DATA0 ><__G0__><__R5__><__R4__><__R3__><__R2__><__R1__><__R0__><
- DATA1 ><__B1__><__B0__><__G5__><__G4__><__G3__><__G2__><__G1__><
- DATA2 ><_CTL2_><_CTL1_><_CTL0_><__B5__><__B4__><__B3__><__B2__><
-
- - "jeida-24" - 24-bit data mapping compatible with the [DSIM] and [LDI]
- specifications. Data are transferred as follows on 4 LVDS lanes.
-
- Slot 0 1 2 3 4 5 6
- ________________ _________________
- Clock \_______________________/
- ______ ______ ______ ______ ______ ______ ______
- DATA0 ><__G2__><__R7__><__R6__><__R5__><__R4__><__R3__><__R2__><
- DATA1 ><__B3__><__B2__><__G7__><__G6__><__G5__><__G4__><__G3__><
- DATA2 ><_CTL2_><_CTL1_><_CTL0_><__B7__><__B6__><__B5__><__B4__><
- DATA3 ><_CTL3_><__B1__><__B0__><__G1__><__G0__><__R1__><__R0__><
-
- - "vesa-24" - 24-bit data mapping compatible with the [VESA] specification.
- Data are transferred as follows on 4 LVDS lanes.
-
- Slot 0 1 2 3 4 5 6
- ________________ _________________
- Clock \_______________________/
- ______ ______ ______ ______ ______ ______ ______
- DATA0 ><__G0__><__R5__><__R4__><__R3__><__R2__><__R1__><__R0__><
- DATA1 ><__B1__><__B0__><__G5__><__G4__><__G3__><__G2__><__G1__><
- DATA2 ><_CTL2_><_CTL1_><_CTL0_><__B5__><__B4__><__B3__><__B2__><
- DATA3 ><_CTL3_><__B7__><__B6__><__G7__><__G6__><__R7__><__R6__><
-
- Control signals are mapped as follows.
-
- CTL0: HSync
- CTL1: VSync
- CTL2: Data Enable
- CTL3: 0
-
data-mirror:
type: boolean
description:
- If set, reverse the bit order described in the data mappings below on all
+ If set, reverse the bit order described in the data mappings on all
data lanes, transmitting bits for slots 6 to 0 instead of 0 to 6.
additionalProperties: true
diff --git a/Documentation/devicetree/bindings/display/mayqueen,pixpaper.yaml b/Documentation/devicetree/bindings/display/mayqueen,pixpaper.yaml
new file mode 100644
index 000000000000..cd27f8ba5ae1
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/mayqueen,pixpaper.yaml
@@ -0,0 +1,63 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/mayqueen,pixpaper.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Mayqueen Pixpaper e-ink display panel
+
+maintainers:
+ - LiangCheng Wang <zaq14760@gmail.com>
+
+description:
+ The Pixpaper is an e-ink display panel controlled via an SPI interface.
+ The panel has a resolution of 122x250 pixels and requires GPIO pins for
+ reset, busy, and data/command control.
+
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+properties:
+ compatible:
+ const: mayqueen,pixpaper
+
+ reg:
+ maxItems: 1
+
+ spi-max-frequency:
+ maximum: 1000000
+ default: 1000000
+
+ reset-gpios:
+ maxItems: 1
+
+ busy-gpios:
+ maxItems: 1
+
+ dc-gpios:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - reset-gpios
+ - busy-gpios
+ - dc-gpios
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ display@0 {
+ compatible = "mayqueen,pixpaper";
+ reg = <0>;
+ spi-max-frequency = <1000000>;
+ reset-gpios = <&gpio1 17 GPIO_ACTIVE_HIGH>;
+ busy-gpios = <&gpio1 18 GPIO_ACTIVE_HIGH>;
+ dc-gpios = <&gpio1 19 GPIO_ACTIVE_HIGH>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,aal.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,aal.yaml
index 92741486c24d..daf90ebb39bf 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,aal.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,aal.yaml
@@ -24,9 +24,15 @@ properties:
- enum:
- mediatek,mt8173-disp-aal
- mediatek,mt8183-disp-aal
+ - mediatek,mt8195-mdp3-aal
+ - items:
+ - enum:
+ - mediatek,mt8188-mdp3-aal
+ - const: mediatek,mt8195-mdp3-aal
- items:
- enum:
- mediatek,mt2712-disp-aal
+ - mediatek,mt6795-disp-aal
- const: mediatek,mt8173-disp-aal
- items:
- enum:
@@ -34,6 +40,7 @@ properties:
- mediatek,mt8188-disp-aal
- mediatek,mt8192-disp-aal
- mediatek,mt8195-disp-aal
+ - mediatek,mt8365-disp-aal
- const: mediatek,mt8183-disp-aal
reg:
@@ -59,6 +66,27 @@ properties:
$ref: /schemas/types.yaml#/definitions/phandle-array
maxItems: 1
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+ description:
+ Input and output ports can have multiple endpoints, each of those
+ connects to either the primary, secondary, etc, display pipeline.
+
+ properties:
+ port@0:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: AAL input port
+
+ port@1:
+ $ref: /schemas/graph.yaml#/properties/port
+ description:
+ AAL output to the next component's input, for example could be one
+ of many gamma, overdrive or other blocks.
+
+ required:
+ - port@0
+ - port@1
+
required:
- compatible
- reg
@@ -80,11 +108,30 @@ examples:
#size-cells = <2>;
aal@14015000 {
- compatible = "mediatek,mt8173-disp-aal";
- reg = <0 0x14015000 0 0x1000>;
- interrupts = <GIC_SPI 189 IRQ_TYPE_LEVEL_LOW>;
- power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
- clocks = <&mmsys CLK_MM_DISP_AAL>;
- mediatek,gce-client-reg = <&gce SUBSYS_1401XXXX 0x5000 0x1000>;
- };
+ compatible = "mediatek,mt8173-disp-aal";
+ reg = <0 0x14015000 0 0x1000>;
+ interrupts = <GIC_SPI 189 IRQ_TYPE_LEVEL_LOW>;
+ power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
+ clocks = <&mmsys CLK_MM_DISP_AAL>;
+ mediatek,gce-client-reg = <&gce SUBSYS_1401XXXX 0x5000 0x1000>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ endpoint {
+ remote-endpoint = <&ccorr0_out>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ endpoint {
+ remote-endpoint = <&gamma0_in>;
+ };
+ };
+ };
+ };
};
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,ccorr.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,ccorr.yaml
index 8c2a737237f2..fca8e7bb0cbc 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,ccorr.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,ccorr.yaml
@@ -25,6 +25,9 @@ properties:
- mediatek,mt8183-disp-ccorr
- mediatek,mt8192-disp-ccorr
- items:
+ - const: mediatek,mt8365-disp-ccorr
+ - const: mediatek,mt8183-disp-ccorr
+ - items:
- enum:
- mediatek,mt8186-disp-ccorr
- mediatek,mt8188-disp-ccorr
@@ -54,6 +57,27 @@ properties:
$ref: /schemas/types.yaml#/definitions/phandle-array
maxItems: 1
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+ description:
+ Input and output ports can have multiple endpoints, each of those
+ connects to either the primary, secondary, etc, display pipeline.
+
+ properties:
+ port@0:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: CCORR input port
+
+ port@1:
+ $ref: /schemas/graph.yaml#/properties/port
+ description:
+ CCORR output to the input of the next desired component in the
+ display pipeline, usually only one of the available AAL blocks.
+
+ required:
+ - port@0
+ - port@1
+
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,color.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,color.yaml
index d0ea77fc4b06..5564f4063317 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,color.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,color.yaml
@@ -26,6 +26,11 @@ properties:
- mediatek,mt2701-disp-color
- mediatek,mt8167-disp-color
- mediatek,mt8173-disp-color
+ - mediatek,mt8195-mdp3-color
+ - items:
+ - enum:
+ - mediatek,mt8188-mdp3-color
+ - const: mediatek,mt8195-mdp3-color
- items:
- enum:
- mediatek,mt7623-disp-color
@@ -33,11 +38,13 @@ properties:
- const: mediatek,mt2701-disp-color
- items:
- enum:
+ - mediatek,mt6795-disp-color
- mediatek,mt8183-disp-color
- mediatek,mt8186-disp-color
- mediatek,mt8188-disp-color
- mediatek,mt8192-disp-color
- mediatek,mt8195-disp-color
+ - mediatek,mt8365-disp-color
- const: mediatek,mt8173-disp-color
reg:
maxItems: 1
@@ -62,6 +69,28 @@ properties:
$ref: /schemas/types.yaml#/definitions/phandle-array
maxItems: 1
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+ description:
+ Input and output ports can have multiple endpoints, each of those
+ connects to either the primary, secondary, etc, display pipeline.
+
+ properties:
+ port@0:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: COLOR input port
+
+ port@1:
+ $ref: /schemas/graph.yaml#/properties/port
+ description:
+ COLOR output to the input of the next desired component in the
+ display pipeline, for example one of the available CCORR or AAL
+ blocks.
+
+ required:
+ - port@0
+ - port@1
+
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,dither.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,dither.yaml
index 1588b3f7cec7..abaf27916d13 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,dither.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,dither.yaml
@@ -30,6 +30,7 @@ properties:
- mediatek,mt8188-disp-dither
- mediatek,mt8192-disp-dither
- mediatek,mt8195-disp-dither
+ - mediatek,mt8365-disp-dither
- const: mediatek,mt8183-disp-dither
reg:
@@ -55,6 +56,28 @@ properties:
$ref: /schemas/types.yaml#/definitions/phandle-array
maxItems: 1
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+ description:
+ Input and output ports can have multiple endpoints, each of those
+ connects to either the primary, secondary, etc, display pipeline.
+
+ properties:
+ port@0:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: DITHER input, usually from a POSTMASK or GAMMA block.
+
+ port@1:
+ $ref: /schemas/graph.yaml#/properties/port
+ description:
+ DITHER output to the input of the next desired component in the
+ display pipeline, for example one of the available DSC compressors,
+ DP_INTF, DSI, LVDS or others.
+
+ required:
+ - port@0
+ - port@1
+
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,dp.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,dp.yaml
index ff781f2174a0..274f590807ca 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,dp.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,dp.yaml
@@ -21,6 +21,8 @@ description: |
properties:
compatible:
enum:
+ - mediatek,mt8188-dp-tx
+ - mediatek,mt8188-edp-tx
- mediatek,mt8195-dp-tx
- mediatek,mt8195-edp-tx
@@ -40,6 +42,12 @@ properties:
interrupts:
maxItems: 1
+ '#sound-dai-cells':
+ const: 0
+
+ aux-bus:
+ $ref: /schemas/display/dp-aux-bus.yaml#
+
ports:
$ref: /schemas/graph.yaml#/properties/ports
properties:
@@ -83,7 +91,21 @@ required:
- ports
- max-linkrate-mhz
-additionalProperties: false
+allOf:
+ - $ref: /schemas/sound/dai-common.yaml#
+ - if:
+ not:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - mediatek,mt8188-dp-tx
+ - mediatek,mt8195-dp-tx
+ then:
+ properties:
+ '#sound-dai-cells': false
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml
index d976380801e3..eb4f276e8dc4 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml
@@ -17,15 +17,29 @@ description: |
properties:
compatible:
- enum:
- - mediatek,mt2701-dpi
- - mediatek,mt7623-dpi
- - mediatek,mt8173-dpi
- - mediatek,mt8183-dpi
- - mediatek,mt8186-dpi
- - mediatek,mt8188-dp-intf
- - mediatek,mt8192-dpi
- - mediatek,mt8195-dp-intf
+ oneOf:
+ - enum:
+ - mediatek,mt2701-dpi
+ - mediatek,mt7623-dpi
+ - mediatek,mt8173-dpi
+ - mediatek,mt8183-dpi
+ - mediatek,mt8186-dpi
+ - mediatek,mt8188-dp-intf
+ - mediatek,mt8192-dpi
+ - mediatek,mt8195-dp-intf
+ - mediatek,mt8195-dpi
+ - items:
+ - enum:
+ - mediatek,mt6795-dpi
+ - const: mediatek,mt8183-dpi
+ - items:
+ - enum:
+ - mediatek,mt8365-dpi
+ - const: mediatek,mt8192-dpi
+ - items:
+ - enum:
+ - mediatek,mt8188-dpi
+ - const: mediatek,mt8195-dpi
reg:
maxItems: 1
@@ -53,19 +67,60 @@ properties:
- const: default
- const: sleep
+ power-domains:
+ description: |
+ The MediaTek DPI module is typically associated with one of the
+ following multimedia power domains:
+ POWER_DOMAIN_DISPLAY
+ POWER_DOMAIN_VDOSYS
+ POWER_DOMAIN_MM
+ The specific power domain used varies depending on the SoC design.
+
+ It is recommended to explicitly add the appropriate power domain
+ property to the DPI node in the device tree.
+ maxItems: 1
+
port:
$ref: /schemas/graph.yaml#/properties/port
description:
Output port node. This port should be connected to the input port of an
attached HDMI, LVDS or DisplayPort encoder chip.
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+
+ properties:
+ port@0:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: DPI input port
+
+ port@1:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: DPI output to an HDMI, LVDS or DisplayPort encoder input
+
+ required:
+ - port@0
+ - port@1
+
+ resets:
+ maxItems: 1
+
+ reset-names:
+ items:
+ - const: dpi
+
required:
- compatible
- reg
- interrupts
- clocks
- clock-names
- - port
+
+oneOf:
+ - required:
+ - port
+ - required:
+ - ports
additionalProperties: false
@@ -73,11 +128,13 @@ examples:
- |
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/clock/mt8173-clk.h>
+ #include <dt-bindings/power/mt8173-power.h>
- dpi0: dpi@1401d000 {
+ dpi: dpi@1401d000 {
compatible = "mediatek,mt8173-dpi";
reg = <0x1401d000 0x1000>;
interrupts = <GIC_SPI 194 IRQ_TYPE_LEVEL_LOW>;
+ power-domains = <&spm MT8173_POWER_DOMAIN_MM>;
clocks = <&mmsys CLK_MM_DPI_PIXEL>,
<&mmsys CLK_MM_DPI_ENGINE>,
<&apmixedsys CLK_APMIXED_TVDPLL>;
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,dsc.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,dsc.yaml
index 2cbdd9ee449d..a5b88eb97e3b 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,dsc.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,dsc.yaml
@@ -22,6 +22,9 @@ properties:
oneOf:
- enum:
- mediatek,mt8195-disp-dsc
+ - items:
+ - const: mediatek,mt8188-disp-dsc
+ - const: mediatek,mt8195-disp-dsc
reg:
maxItems: 1
@@ -49,6 +52,30 @@ properties:
$ref: /schemas/types.yaml#/definitions/phandle-array
maxItems: 1
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+ description:
+ Input and output ports can have multiple endpoints, each of those
+ connects to either the primary, secondary, etc, display pipeline.
+
+ properties:
+ port@0:
+ $ref: /schemas/graph.yaml#/properties/port
+ description:
+ Display Stream Compression input, usually from one of the DITHER
+ or MERGE blocks.
+
+ port@1:
+ $ref: /schemas/graph.yaml#/properties/port
+ description:
+ Display Stream Compression output to the input of the next desired
+ component in the display pipeline, for example to MERGE, DP_INTF,
+ DPI or DSI.
+
+ required:
+ - port@0
+ - port@1
+
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,dsi.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,dsi.yaml
index 4707b60238b0..27ffbccc2a08 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,dsi.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,dsi.yaml
@@ -10,7 +10,6 @@ maintainers:
- Chun-Kuang Hu <chunkuang.hu@kernel.org>
- Philipp Zabel <p.zabel@pengutronix.de>
- Jitao Shi <jitao.shi@mediatek.com>
- - Xinlei Lee <xinlei.lee@mediatek.com>
description: |
The MediaTek DSI function block is a sink of the display subsystem and can
@@ -22,13 +21,24 @@ allOf:
properties:
compatible:
- enum:
- - mediatek,mt2701-dsi
- - mediatek,mt7623-dsi
- - mediatek,mt8167-dsi
- - mediatek,mt8173-dsi
- - mediatek,mt8183-dsi
- - mediatek,mt8186-dsi
+ oneOf:
+ - enum:
+ - mediatek,mt2701-dsi
+ - mediatek,mt7623-dsi
+ - mediatek,mt8167-dsi
+ - mediatek,mt8173-dsi
+ - mediatek,mt8183-dsi
+ - mediatek,mt8186-dsi
+ - mediatek,mt8188-dsi
+ - items:
+ - enum:
+ - mediatek,mt6795-dsi
+ - const: mediatek,mt8173-dsi
+ - items:
+ - enum:
+ - mediatek,mt8195-dsi
+ - mediatek,mt8365-dsi
+ - const: mediatek,mt8183-dsi
reg:
maxItems: 1
@@ -67,6 +77,26 @@ properties:
Output port node. This port should be connected to the input
port of an attached DSI panel or DSI-to-eDP encoder chip.
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+ description:
+ Input ports can have multiple endpoints, each of those connects
+ to either the primary, secondary, etc, display pipeline.
+
+ properties:
+ port@0:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: DSI input port, usually from DITHER, DSC or MERGE
+
+ port@1:
+ $ref: /schemas/graph.yaml#/properties/port
+ description:
+ DSI output to an attached DSI panel, or a DSI-to-X encoder chip
+
+ required:
+ - port@0
+ - port@1
+
required:
- compatible
- reg
@@ -76,7 +106,12 @@ required:
- clock-names
- phys
- phy-names
- - port
+
+oneOf:
+ - required:
+ - port
+ - required:
+ - ports
unevaluatedProperties: false
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,ethdr.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,ethdr.yaml
index 801fa66ae615..98db47894eeb 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,ethdr.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,ethdr.yaml
@@ -23,7 +23,11 @@ description:
properties:
compatible:
- const: mediatek,mt8195-disp-ethdr
+ oneOf:
+ - const: mediatek,mt8195-disp-ethdr
+ - items:
+ - const: mediatek,mt8188-disp-ethdr
+ - const: mediatek,mt8195-disp-ethdr
reg:
maxItems: 7
@@ -106,6 +110,28 @@ properties:
include/dt-bindings/gce/<chip>-gce.h, mapping to the register of display
function block.
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+ description:
+ Input and output ports can have multiple endpoints, each of those
+ connects to either the primary, secondary, etc, display pipeline.
+
+ properties:
+ port@0:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: ETHDR input, usually from one of the MERGE blocks.
+
+ port@1:
+ $ref: /schemas/graph.yaml#/properties/port
+ description:
+ ETHDR output to the input of the next desired component in the
+ display pipeline, for example one of the available MERGE blocks,
+ or others.
+
+ required:
+ - port@0
+ - port@1
+
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,gamma.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,gamma.yaml
index 6c2be9d6840b..48542dc7e784 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,gamma.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,gamma.yaml
@@ -24,13 +24,23 @@ properties:
- enum:
- mediatek,mt8173-disp-gamma
- mediatek,mt8183-disp-gamma
+ - mediatek,mt8195-disp-gamma
+ - items:
+ - enum:
+ - mediatek,mt6795-disp-gamma
+ - const: mediatek,mt8173-disp-gamma
- items:
- enum:
- mediatek,mt8186-disp-gamma
- mediatek,mt8188-disp-gamma
- mediatek,mt8192-disp-gamma
- mediatek,mt8195-disp-gamma
+ - mediatek,mt8365-disp-gamma
- const: mediatek,mt8183-disp-gamma
+ - items:
+ - enum:
+ - mediatek,mt8188-disp-gamma
+ - const: mediatek,mt8195-disp-gamma
reg:
maxItems: 1
@@ -55,6 +65,25 @@ properties:
$ref: /schemas/types.yaml#/definitions/phandle-array
maxItems: 1
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+
+ properties:
+ port@0:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: GAMMA input, usually from one of the AAL blocks.
+
+ port@1:
+ $ref: /schemas/graph.yaml#/properties/port
+ description:
+ GAMMA output to the input of the next desired component in the
+ display pipeline, for example one of the available DITHER or
+ POSTMASK blocks.
+
+ required:
+ - port@0
+ - port@1
+
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,mdp-rdma.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,mdp-rdma.yaml
deleted file mode 100644
index dd12e2ff685c..000000000000
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,mdp-rdma.yaml
+++ /dev/null
@@ -1,88 +0,0 @@
-# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
-%YAML 1.2
----
-$id: http://devicetree.org/schemas/display/mediatek/mediatek,mdp-rdma.yaml#
-$schema: http://devicetree.org/meta-schemas/core.yaml#
-
-title: MediaTek MDP RDMA
-
-maintainers:
- - Chun-Kuang Hu <chunkuang.hu@kernel.org>
- - Philipp Zabel <p.zabel@pengutronix.de>
-
-description:
- The MediaTek MDP RDMA stands for Read Direct Memory Access.
- It provides real time data to the back-end panel driver, such as DSI,
- DPI and DP_INTF.
- It contains one line buffer to store the sufficient pixel data.
- RDMA device node must be siblings to the central MMSYS_CONFIG node.
- For a description of the MMSYS_CONFIG binding, see
- Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.yaml for details.
-
-properties:
- compatible:
- const: mediatek,mt8195-vdo1-rdma
-
- reg:
- maxItems: 1
-
- interrupts:
- maxItems: 1
-
- power-domains:
- maxItems: 1
-
- clocks:
- items:
- - description: RDMA Clock
-
- iommus:
- maxItems: 1
-
- mediatek,gce-client-reg:
- description:
- The register of display function block to be set by gce. There are 4 arguments,
- such as gce node, subsys id, offset and register size. The subsys id that is
- mapping to the register of display function blocks is defined in the gce header
- include/dt-bindings/gce/<chip>-gce.h of each chips.
- $ref: /schemas/types.yaml#/definitions/phandle-array
- items:
- items:
- - description: phandle of GCE
- - description: GCE subsys id
- - description: register offset
- - description: register size
- maxItems: 1
-
-required:
- - compatible
- - reg
- - power-domains
- - clocks
- - iommus
- - mediatek,gce-client-reg
-
-additionalProperties: false
-
-examples:
- - |
- #include <dt-bindings/interrupt-controller/arm-gic.h>
- #include <dt-bindings/clock/mt8195-clk.h>
- #include <dt-bindings/power/mt8195-power.h>
- #include <dt-bindings/gce/mt8195-gce.h>
- #include <dt-bindings/memory/mt8195-memory-port.h>
-
- soc {
- #address-cells = <2>;
- #size-cells = <2>;
-
- rdma@1c104000 {
- compatible = "mediatek,mt8195-vdo1-rdma";
- reg = <0 0x1c104000 0 0x1000>;
- interrupts = <GIC_SPI 495 IRQ_TYPE_LEVEL_HIGH 0>;
- clocks = <&vdosys1 CLK_VDO1_MDP_RDMA0>;
- power-domains = <&spm MT8195_POWER_DOMAIN_VDOSYS1>;
- iommus = <&iommu_vdo M4U_PORT_L2_MDP_RDMA0>;
- mediatek,gce-client-reg = <&gce0 SUBSYS_1c10XXXX 0x4000 0x1000>;
- };
- };
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,merge.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,merge.yaml
index 2f8e2f4dc3b8..3798a25402d3 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,merge.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,merge.yaml
@@ -24,6 +24,17 @@ properties:
- enum:
- mediatek,mt8173-disp-merge
- mediatek,mt8195-disp-merge
+ - mediatek,mt8195-mdp3-merge
+ - items:
+ - enum:
+ - mediatek,mt8188-mdp3-merge
+ - const: mediatek,mt8195-mdp3-merge
+ - items:
+ - const: mediatek,mt6795-disp-merge
+ - const: mediatek,mt8173-disp-merge
+ - items:
+ - const: mediatek,mt8188-disp-merge
+ - const: mediatek,mt8195-disp-merge
reg:
maxItems: 1
@@ -70,6 +81,29 @@ properties:
$ref: /schemas/types.yaml#/definitions/phandle-array
maxItems: 1
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+ description:
+ Input and output ports can have multiple endpoints, each of those
+ connects to either the primary, secondary, etc, display pipeline.
+
+ properties:
+ port@0:
+ $ref: /schemas/graph.yaml#/properties/port
+ description:
+ MERGE input port, usually from DITHER, DPI, DSC, DSI, MDP_RDMA,
+ ETHDR or even from a different MERGE block
+
+ port@1:
+ $ref: /schemas/graph.yaml#/properties/port
+ description:
+ MERGE output to a DSC, DPI, DP_INTF, DSI, ETHDR, Write DMA, or
+ a different MERGE block, or others.
+
+ required:
+ - port@0
+ - port@1
+
resets:
description: reset controller
See Documentation/devicetree/bindings/reset/reset.txt for details.
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,mt8195-hdmi-ddc.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,mt8195-hdmi-ddc.yaml
new file mode 100644
index 000000000000..bde4dc556d4f
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,mt8195-hdmi-ddc.yaml
@@ -0,0 +1,41 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/mediatek/mediatek,mt8195-hdmi-ddc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek HDMI MT8195 series HDMI Display Data Channel (DDC)
+
+maintainers:
+ - AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
+ - CK Hu <ck.hu@mediatek.com>
+
+properties:
+ compatible:
+ oneOf:
+ - const: mediatek,mt8195-hdmi-ddc
+ - items:
+ - const: mediatek,mt8188-hdmi-ddc
+ - const: mediatek,mt8195-hdmi-ddc
+
+ clocks:
+ maxItems: 1
+
+ power-domains:
+ maxItems: 1
+
+required:
+ - compatible
+ - clocks
+
+additionalProperties: false
+
+examples:
+ - |
+ hdmi {
+ hdmi_ddc: i2c {
+ compatible = "mediatek,mt8195-hdmi-ddc";
+ clocks = <&clk26m>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,mt8195-hdmi.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,mt8195-hdmi.yaml
new file mode 100644
index 000000000000..1b382f99d3ce
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,mt8195-hdmi.yaml
@@ -0,0 +1,151 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/mediatek/mediatek,mt8195-hdmi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek MT8195 series HDMI-TX Encoder
+
+maintainers:
+ - AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
+ - CK Hu <ck.hu@mediatek.com>
+
+description:
+ The MediaTek HDMI-TX v2 encoder can generate HDMI format data based on
+ the HDMI Specification 2.0b.
+
+properties:
+ compatible:
+ enum:
+ - mediatek,mt8188-hdmi-tx
+ - mediatek,mt8195-hdmi-tx
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: HDMI Peripheral Bus (APB) clock
+ - description: HDCP and HDMI_TOP clock
+ - description: HDCP, HDMI_TOP and HDMI Audio reference clock
+ - description: VPP HDMI Split clock
+
+ clock-names:
+ items:
+ - const: bus
+ - const: hdcp
+ - const: hdcp24m
+ - const: hdmi-split
+
+ i2c:
+ type: object
+ $ref: /schemas/display/mediatek/mediatek,mt8195-hdmi-ddc.yaml
+ unevaluatedProperties: false
+ description: HDMI DDC I2C controller
+
+ phys:
+ maxItems: 1
+ description: PHY providing clocking TMDS and pixel to controller
+
+ phy-names:
+ items:
+ - const: hdmi
+
+ power-domains:
+ maxItems: 1
+
+ '#sound-dai-cells':
+ const: 1
+
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+
+ properties:
+ port@0:
+ $ref: /schemas/graph.yaml#/properties/port
+ description:
+ Input port, usually connected to the output port of a DPI
+
+ port@1:
+ $ref: /schemas/graph.yaml#/properties/port
+ description:
+ Output port that must be connected either to the input port of
+ a HDMI connector node containing a ddc-i2c-bus, or to the input
+ port of an attached bridge chip, such as a SlimPort transmitter.
+
+ required:
+ - port@0
+ - port@1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - power-domains
+ - phys
+ - phy-names
+ - ports
+
+allOf:
+ - $ref: /schemas/sound/dai-common.yaml#
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/mt8195-clk.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/power/mt8195-power.h>
+
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ hdmi@1c300000 {
+ compatible = "mediatek,mt8195-hdmi-tx";
+ reg = <0 0x1c300000 0 0x1000>;
+ clocks = <&topckgen CLK_TOP_HDMI_APB>,
+ <&topckgen CLK_TOP_HDCP>,
+ <&topckgen CLK_TOP_HDCP_24M>,
+ <&vppsys1 CLK_VPP1_VPP_SPLIT_HDMI>;
+ clock-names = "bus", "hdcp", "hdcp24m", "hdmi-split";
+ interrupts = <GIC_SPI 677 IRQ_TYPE_LEVEL_HIGH 0>;
+ phys = <&hdmi_phy>;
+ phy-names = "hdmi";
+ power-domains = <&spm MT8195_POWER_DOMAIN_HDMI_TX>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&hdmi_pins>;
+ #sound-dai-cells = <1>;
+
+ hdmitx_ddc: i2c {
+ compatible = "mediatek,mt8195-hdmi-ddc";
+ clocks = <&clk26m>;
+ };
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ hdmi_in: endpoint {
+ remote-endpoint = <&dpi1_out>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ hdmi_out: endpoint {
+ remote-endpoint = <&hdmi_connector_in>;
+ };
+ };
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,od.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,od.yaml
index 29f9fa8f8219..930c088a722a 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,od.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,od.yaml
@@ -24,6 +24,9 @@ properties:
- enum:
- mediatek,mt2712-disp-od
- mediatek,mt8173-disp-od
+ - items:
+ - const: mediatek,mt6795-disp-od
+ - const: mediatek,mt8173-disp-od
reg:
maxItems: 1
@@ -35,6 +38,40 @@ properties:
items:
- description: OD Clock
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+ description:
+ Input and output ports can have multiple endpoints, each of those
+ connects to either the primary, secondary, etc, display pipeline.
+
+ properties:
+ port@0:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: OD input port, usually from an AAL block
+
+ port@1:
+ $ref: /schemas/graph.yaml#/properties/port
+ description:
+ OD output to the input of the next desired component in the
+ display pipeline, for example one of the available RDMA or
+ other blocks.
+
+ required:
+ - port@0
+ - port@1
+
+ mediatek,gce-client-reg:
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ description: describes how to locate the GCE client register
+ items:
+ - items:
+ - description: Phandle reference to a Mediatek GCE Mailbox
+ - description:
+ GCE subsys id mapping to a client defined in header
+ include/dt-bindings/gce/<chip>-gce.h.
+ - description: offset for the GCE register offset
+ - description: size of the GCE register offset
+
required:
- compatible
- reg
@@ -45,6 +82,7 @@ additionalProperties: false
examples:
- |
#include <dt-bindings/clock/mt8173-clk.h>
+ #include <dt-bindings/gce/mt8173-gce.h>
soc {
#address-cells = <2>;
@@ -54,5 +92,6 @@ examples:
compatible = "mediatek,mt8173-disp-od";
reg = <0 0x14023000 0 0x1000>;
clocks = <&mmsys CLK_MM_DISP_OD>;
+ mediatek,gce-client-reg = <&gce SUBSYS_1402XXXX 0x3000 0x1000>;
};
};
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,ovl-2l.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,ovl-2l.yaml
index c7dd0ef02dcf..bacdfe7d08a6 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,ovl-2l.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,ovl-2l.yaml
@@ -57,6 +57,28 @@ properties:
$ref: /schemas/types.yaml#/definitions/phandle-array
maxItems: 1
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+ description:
+ Input and output ports can have multiple endpoints, each of those
+ connects to either the primary, secondary, etc, display pipeline.
+
+ properties:
+ port@0:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: OVL input port from MMSYS, VDOSYS or other OVLs
+
+ port@1:
+ $ref: /schemas/graph.yaml#/properties/port
+ description:
+ OVL output to the input of the next desired component in the
+ display pipeline, for example one of the available COLOR, RDMA
+ or WDMA blocks.
+
+ required:
+ - port@0
+ - port@1
+
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,ovl.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,ovl.yaml
index 92e320d54ba2..4f110635afb6 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,ovl.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,ovl.yaml
@@ -26,6 +26,8 @@ properties:
- mediatek,mt8173-disp-ovl
- mediatek,mt8183-disp-ovl
- mediatek,mt8192-disp-ovl
+ - mediatek,mt8195-disp-ovl
+ - mediatek,mt8195-mdp3-ovl
- items:
- enum:
- mediatek,mt7623-disp-ovl
@@ -33,13 +35,19 @@ properties:
- const: mediatek,mt2701-disp-ovl
- items:
- enum:
- - mediatek,mt8188-disp-ovl
- - mediatek,mt8195-disp-ovl
- - const: mediatek,mt8183-disp-ovl
+ - mediatek,mt6795-disp-ovl
+ - const: mediatek,mt8173-disp-ovl
- items:
- enum:
- mediatek,mt8186-disp-ovl
+ - mediatek,mt8365-disp-ovl
- const: mediatek,mt8192-disp-ovl
+ - items:
+ - const: mediatek,mt8188-disp-ovl
+ - const: mediatek,mt8195-disp-ovl
+ - items:
+ - const: mediatek,mt8188-mdp3-ovl
+ - const: mediatek,mt8195-mdp3-ovl
reg:
maxItems: 1
@@ -69,6 +77,28 @@ properties:
$ref: /schemas/types.yaml#/definitions/phandle-array
maxItems: 1
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+ description:
+ Input and output ports can have multiple endpoints, each of those
+ connects to either the primary, secondary, etc, display pipeline.
+
+ properties:
+ port@0:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: OVL input port from MMSYS or one of multiple VDOSYS
+
+ port@1:
+ $ref: /schemas/graph.yaml#/properties/port
+ description:
+ OVL output to the input of the next desired component in the
+ display pipeline, for example one of the available COLOR, RDMA
+ or WDMA blocks.
+
+ required:
+ - port@0
+ - port@1
+
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,padding.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,padding.yaml
new file mode 100644
index 000000000000..86787866ced0
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,padding.yaml
@@ -0,0 +1,87 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/mediatek/mediatek,padding.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek Display Padding
+
+maintainers:
+ - Chun-Kuang Hu <chunkuang.hu@kernel.org>
+ - Philipp Zabel <p.zabel@pengutronix.de>
+
+description:
+ Padding provides ability to add pixels to width and height of a layer with
+ specified colors. Due to hardware design, Mixer in VDOSYS1 requires
+ width of a layer to be 2-pixel-align, or 4-pixel-align when ETHDR is enabled,
+ we need Padding to deal with odd width.
+ Please notice that even if the Padding is in bypass mode, settings in
+ register must be cleared to 0, or undefined behaviors could happen.
+
+properties:
+ compatible:
+ oneOf:
+ - enum:
+ - mediatek,mt8188-disp-padding
+ - mediatek,mt8195-mdp3-padding
+ - items:
+ - const: mediatek,mt8188-mdp3-padding
+ - const: mediatek,mt8195-mdp3-padding
+
+ reg:
+ maxItems: 1
+
+ power-domains:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: Padding's clocks
+
+ mediatek,gce-client-reg:
+ description:
+ GCE (Global Command Engine) is a multi-core micro processor that helps
+ its clients to execute commands without interrupting CPU. This property
+ describes GCE client's information that is composed by 4 fields.
+ 1. Phandle of the GCE (there may be several GCE processors)
+ 2. Sub-system ID defined in the dt-binding like a user ID
+ (Please refer to include/dt-bindings/gce/<chip>-gce.h)
+ 3. Offset from base address of the subsys you are at
+ 4. Size of the register the client needs
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ items:
+ items:
+ - description: Phandle of the GCE
+ - description: Subsys ID defined in the dt-binding
+ - description: Offset from base address of the subsys
+ - description: Size of register
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - power-domains
+ - clocks
+ - mediatek,gce-client-reg
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/mediatek,mt8188-clk.h>
+ #include <dt-bindings/power/mediatek,mt8188-power.h>
+ #include <dt-bindings/gce/mt8195-gce.h>
+
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ padding0: padding@1c11d000 {
+ compatible = "mediatek,mt8188-disp-padding";
+ reg = <0 0x1c11d000 0 0x1000>;
+ clocks = <&vdosys1 CLK_VDO1_PADDING0>;
+ power-domains = <&spm MT8188_POWER_DOMAIN_VDOSYS1>;
+ mediatek,gce-client-reg = <&gce0 SUBSYS_1c11XXXX 0xd000 0x1000>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,postmask.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,postmask.yaml
index 11fe32e50a59..fb6fe4742624 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,postmask.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,postmask.yaml
@@ -52,6 +52,27 @@ properties:
$ref: /schemas/types.yaml#/definitions/phandle-array
maxItems: 1
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+ description:
+ Input and output ports can have multiple endpoints, each of those
+ connects to either the primary, secondary, etc, display pipeline.
+
+ properties:
+ port@0:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: POSTMASK input port, usually from GAMMA
+
+ port@1:
+ $ref: /schemas/graph.yaml#/properties/port
+ description:
+ POSTMASK output to the input of the next desired component in the
+ display pipeline, for example one of the available DITHER blocks.
+
+ required:
+ - port@0
+ - port@1
+
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,rdma.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,rdma.yaml
index 42059efad45d..878f676b581f 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,rdma.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,rdma.yaml
@@ -39,8 +39,13 @@ properties:
- const: mediatek,mt2701-disp-rdma
- items:
- enum:
+ - mediatek,mt6795-disp-rdma
+ - const: mediatek,mt8173-disp-rdma
+ - items:
+ - enum:
- mediatek,mt8186-disp-rdma
- mediatek,mt8192-disp-rdma
+ - mediatek,mt8365-disp-rdma
- const: mediatek,mt8183-disp-rdma
reg:
@@ -82,6 +87,28 @@ properties:
$ref: /schemas/types.yaml#/definitions/phandle-array
maxItems: 1
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+ description:
+ Input and output ports can have multiple endpoints, each of those
+ connects to either the primary, secondary, etc, display pipeline.
+
+ properties:
+ port@0:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: RDMA input port, usually from MMSYS, OD or OVL
+
+ port@1:
+ $ref: /schemas/graph.yaml#/properties/port
+ description:
+ RDMA output to the input of the next desired component in the
+ display pipeline, for example one of the available COLOR, DPI,
+ DSI, MERGE or UFOE blocks.
+
+ required:
+ - port@0
+ - port@1
+
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,split.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,split.yaml
index 21a4e96ecd93..4b6ff546757e 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,split.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,split.yaml
@@ -23,6 +23,10 @@ properties:
oneOf:
- enum:
- mediatek,mt8173-disp-split
+ - mediatek,mt8195-mdp3-split
+ - items:
+ - const: mediatek,mt6795-disp-split
+ - const: mediatek,mt8173-disp-split
reg:
maxItems: 1
@@ -34,10 +38,29 @@ properties:
description: A phandle and PM domain specifier as defined by bindings of
the power controller specified by phandle. See
Documentation/devicetree/bindings/power/power-domain.yaml for details.
+ maxItems: 1
+
+ mediatek,gce-client-reg:
+ description:
+ The register of display function block to be set by gce. There are 4 arguments,
+ such as gce node, subsys id, offset and register size. The subsys id that is
+ mapping to the register of display function blocks is defined in the gce header
+ include/dt-bindings/gce/<chip>-gce.h of each chips.
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ items:
+ items:
+ - description: phandle of GCE
+ - description: GCE subsys id
+ - description: register offset
+ - description: register size
+ maxItems: 1
clocks:
items:
- description: SPLIT Clock
+ - description: Used for interfacing with the HDMI RX signal source.
+ - description: Paired with receiving HDMI RX metadata.
+ minItems: 1
required:
- compatible
@@ -45,6 +68,32 @@ required:
- power-domains
- clocks
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: mediatek,mt8195-mdp3-split
+
+ then:
+ properties:
+ clocks:
+ minItems: 3
+
+ required:
+ - mediatek,gce-client-reg
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: mediatek,mt8173-disp-split
+
+ then:
+ properties:
+ clocks:
+ maxItems: 1
+
additionalProperties: false
examples:
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,ufoe.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,ufoe.yaml
index 62fad23a26f5..036a66ed42e7 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,ufoe.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,ufoe.yaml
@@ -24,6 +24,9 @@ properties:
oneOf:
- enum:
- mediatek,mt8173-disp-ufoe
+ - items:
+ - const: mediatek,mt6795-disp-ufoe
+ - const: mediatek,mt8173-disp-ufoe
reg:
maxItems: 1
@@ -40,6 +43,39 @@ properties:
items:
- description: UFOe Clock
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+ description:
+ Input and output ports can have multiple endpoints, each of those
+ connects to either the primary, secondary, etc, display pipeline.
+
+ properties:
+ port@0:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: UFOE input, usually from one of the RDMA blocks.
+
+ port@1:
+ $ref: /schemas/graph.yaml#/properties/port
+ description:
+ UFOE output to the input of the next desired component in the
+ display pipeline, usually one of the available DSI blocks.
+
+ required:
+ - port@0
+ - port@1
+
+ mediatek,gce-client-reg:
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ description: describes how to locate the GCE client register
+ items:
+ - items:
+ - description: Phandle reference to a Mediatek GCE Mailbox
+ - description:
+ GCE subsys id mapping to a client defined in header
+ include/dt-bindings/gce/<chip>-gce.h.
+ - description: offset for the GCE register offset
+ - description: size of the GCE register offset
+
required:
- compatible
- reg
@@ -53,7 +89,9 @@ examples:
- |
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/clock/mt8173-clk.h>
+ #include <dt-bindings/gce/mt8173-gce.h>
#include <dt-bindings/power/mt8173-power.h>
+
soc {
#address-cells = <2>;
#size-cells = <2>;
@@ -64,5 +102,6 @@ examples:
interrupts = <GIC_SPI 191 IRQ_TYPE_LEVEL_LOW>;
power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
clocks = <&mmsys CLK_MM_DISP_UFOE>;
+ mediatek,gce-client-reg = <&gce SUBSYS_1401XXXX 0xa000 0x1000>;
};
};
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,wdma.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,wdma.yaml
index 991183165d29..a3a2b71a4523 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,wdma.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,wdma.yaml
@@ -23,6 +23,9 @@ properties:
oneOf:
- enum:
- mediatek,mt8173-disp-wdma
+ - items:
+ - const: mediatek,mt6795-disp-wdma
+ - const: mediatek,mt8173-disp-wdma
reg:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
index f0c2237d5f82..ebda78db87a6 100644
--- a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
+++ b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
@@ -8,6 +8,7 @@ title: MSM Display Port Controller
maintainers:
- Kuogee Hsieh <quic_khsieh@quicinc.com>
+ - Abhinav Kumar <quic_abhinavk@quicinc.com>
description: |
Device tree bindings for DisplayPort host controller for MSM targets
@@ -17,6 +18,8 @@ properties:
compatible:
oneOf:
- enum:
+ - qcom,glymur-dp
+ - qcom,sa8775p-dp
- qcom,sc7180-dp
- qcom,sc7280-dp
- qcom,sc7280-edp
@@ -26,11 +29,47 @@ properties:
- qcom,sc8280xp-edp
- qcom,sdm845-dp
- qcom,sm8350-dp
+ - qcom,sm8650-dp
+ - qcom,x1e80100-dp
+
- items:
- enum:
+ - qcom,qcs8300-dp
+ - const: qcom,sa8775p-dp
+
+ - items:
+ - enum:
+ - qcom,sm6350-dp
+ - const: qcom,sc7180-dp
+
+ # deprecated entry for compatibility with old DT
+ - items:
+ - enum:
+ - qcom,sm6350-dp
+ - const: qcom,sm8350-dp
+ deprecated: true
+
+ - items:
+ - enum:
+ - qcom,sar2130p-dp
+ - qcom,sm7150-dp
+ - qcom,sm8150-dp
+ - qcom,sm8250-dp
- qcom,sm8450-dp
+ - qcom,sm8550-dp
+ - const: qcom,sm8350-dp
+
+ - items:
+ - enum:
+ - qcom,sm6150-dp
+ - const: qcom,sm8150-dp
- const: qcom,sm8350-dp
+ - items:
+ - enum:
+ - qcom,sm8750-dp
+ - const: qcom,sm8650-dp
+
reg:
minItems: 4
items:
@@ -39,35 +78,37 @@ properties:
- description: link register block
- description: p0 register block
- description: p1 register block
+ - description: p2 register block
+ - description: p3 register block
+ - description: mst2link register block
+ - description: mst3link register block
interrupts:
maxItems: 1
clocks:
+ minItems: 5
items:
- description: AHB clock to enable register access
- description: Display Port AUX clock
- description: Display Port Link clock
- description: Link interface clock between DP and PHY
- - description: Display Port Pixel clock
+ - description: Display Port stream 0 Pixel clock
+ - description: Display Port stream 1 Pixel clock
+ - description: Display Port stream 2 Pixel clock
+ - description: Display Port stream 3 Pixel clock
clock-names:
+ minItems: 5
items:
- const: core_iface
- const: core_aux
- const: ctrl_link
- const: ctrl_link_iface
- const: stream_pixel
-
- assigned-clocks:
- items:
- - description: link clock source
- - description: pixel clock source
-
- assigned-clock-parents:
- items:
- - description: phy 0 parent
- - description: phy 1 parent
+ - const: stream_1_pixel
+ - const: stream_2_pixel
+ - const: stream_3_pixel
phys:
maxItems: 1
@@ -78,7 +119,8 @@ properties:
operating-points-v2: true
- opp-table: true
+ opp-table:
+ type: object
power-domains:
maxItems: 1
@@ -111,6 +153,7 @@ properties:
port@1:
$ref: /schemas/graph.yaml#/$defs/port-base
+ unevaluatedProperties: false
description: Output endpoint of the controller
properties:
endpoint:
@@ -147,7 +190,6 @@ required:
allOf:
# AUX BUS does not exist on DP controllers
# Audio output also is present only on DP output
- # p1 regions is present on DP, but not on eDP
- if:
properties:
compatible:
@@ -160,14 +202,115 @@ allOf:
properties:
"#sound-dai-cells": false
else:
+ if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,glymur-dp
+ - qcom,sa8775p-dp
+ - qcom,x1e80100-dp
+ then:
+ $ref: /schemas/sound/dai-common.yaml#
+ oneOf:
+ - required:
+ - aux-bus
+ - required:
+ - "#sound-dai-cells"
+ else:
+ properties:
+ aux-bus: false
+ required:
+ - "#sound-dai-cells"
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ # these platforms support SST only
+ - qcom,sc7180-dp
+ - qcom,sc7280-dp
+ - qcom,sc7280-edp
+ - qcom,sc8180x-edp
+ - qcom,sc8280xp-edp
+ then:
properties:
- aux-bus: false
reg:
minItems: 5
- required:
- - "#sound-dai-cells"
+ maxItems: 5
+ clocks:
+ minItems: 5
+ maxItems: 5
+ clocks-names:
+ minItems: 5
+ maxItems: 5
-additionalProperties: false
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ # these platforms support 2 streams MST on some interfaces,
+ # others are SST only
+ - qcom,glymur-dp
+ - qcom,sc8280xp-dp
+ - qcom,x1e80100-dp
+ then:
+ properties:
+ reg:
+ minItems: 5
+ maxItems: 5
+ clocks:
+ minItems: 5
+ maxItems: 6
+ clocks-names:
+ minItems: 5
+ maxItems: 6
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ # 2 streams MST
+ enum:
+ - qcom,sc8180x-dp
+ - qcom,sdm845-dp
+ - qcom,sm8350-dp
+ - qcom,sm8650-dp
+ then:
+ properties:
+ reg:
+ minItems: 5
+ maxItems: 5
+ clocks:
+ minItems: 6
+ maxItems: 6
+ clocks-names:
+ minItems: 6
+ maxItems: 6
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ # these platforms support 4 stream MST on first DP,
+ # 2 streams MST on the second one.
+ - qcom,sa8775p-dp
+ then:
+ properties:
+ reg:
+ minItems: 9
+ maxItems: 9
+ clocks:
+ minItems: 6
+ maxItems: 8
+ clocks-names:
+ minItems: 6
+ maxItems: 8
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/display/msm/dsi-controller-main.yaml b/Documentation/devicetree/bindings/display/msm/dsi-controller-main.yaml
index e6c1ebfe8a32..4400d4cce072 100644
--- a/Documentation/devicetree/bindings/display/msm/dsi-controller-main.yaml
+++ b/Documentation/devicetree/bindings/display/msm/dsi-controller-main.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/msm/dsi-controller-main.yaml#
@@ -15,22 +15,35 @@ properties:
- items:
- enum:
- qcom,apq8064-dsi-ctrl
+ - qcom,msm8226-dsi-ctrl
- qcom,msm8916-dsi-ctrl
- qcom,msm8953-dsi-ctrl
- qcom,msm8974-dsi-ctrl
+ - qcom,msm8976-dsi-ctrl
- qcom,msm8996-dsi-ctrl
- qcom,msm8998-dsi-ctrl
- qcom,qcm2290-dsi-ctrl
+ - qcom,sa8775p-dsi-ctrl
+ - qcom,sar2130p-dsi-ctrl
- qcom,sc7180-dsi-ctrl
- qcom,sc7280-dsi-ctrl
+ - qcom,sc8180x-dsi-ctrl
- qcom,sdm660-dsi-ctrl
+ - qcom,sdm670-dsi-ctrl
- qcom,sdm845-dsi-ctrl
- qcom,sm6115-dsi-ctrl
+ - qcom,sm6125-dsi-ctrl
+ - qcom,sm6150-dsi-ctrl
+ - qcom,sm6350-dsi-ctrl
+ - qcom,sm6375-dsi-ctrl
+ - qcom,sm7150-dsi-ctrl
- qcom,sm8150-dsi-ctrl
- qcom,sm8250-dsi-ctrl
- qcom,sm8350-dsi-ctrl
- qcom,sm8450-dsi-ctrl
- qcom,sm8550-dsi-ctrl
+ - qcom,sm8650-dsi-ctrl
+ - qcom,sm8750-dsi-ctrl
- const: qcom,mdss-dsi-ctrl
- enum:
- qcom,dsi-ctrl-6g-qcm2290
@@ -59,11 +72,11 @@ properties:
- mnoc:: MNOC clock
- pixel:: Display pixel clock.
minItems: 3
- maxItems: 9
+ maxItems: 12
clock-names:
minItems: 3
- maxItems: 9
+ maxItems: 12
phys:
maxItems: 1
@@ -82,11 +95,24 @@ properties:
Indicates if the DSI controller is driving a panel which needs
2 DSI links.
+ qcom,master-dsi:
+ type: boolean
+ description: |
+ Indicates if the DSI controller is the master DSI controller when
+ qcom,dual-dsi-mode enabled.
+
+ qcom,sync-dual-dsi:
+ type: boolean
+ description: |
+ Indicates if the DSI controller needs to sync the other DSI controller
+ with MIPI DCS commands when qcom,dual-dsi-mode enabled.
+
assigned-clocks:
minItems: 2
maxItems: 4
description: |
- Parents of "byte" and "pixel" for the given platform.
+ For DSI on SM8650 and older: parents of "byte" and "pixel" for the given
+ platform.
For DSIv2 platforms this should contain "byte", "esc", "src" and
"pixel_src" clocks.
@@ -143,6 +169,22 @@ properties:
items:
enum: [ 0, 1, 2, 3 ]
+ qcom,te-source:
+ $ref: /schemas/types.yaml#/definitions/string
+ description:
+ Specifies the source of vsync signal from the panel used for
+ tearing elimination.
+ default: mdp_vsync_p
+ enum:
+ - mdp_vsync_p
+ - mdp_vsync_s
+ - mdp_vsync_e
+ - timer0
+ - timer1
+ - timer2
+ - timer3
+ - timer4
+
required:
- port@0
- port@1
@@ -151,6 +193,10 @@ properties:
description:
Phandle to vdd regulator device node
+ refgen-supply:
+ description:
+ Phandle to REFGEN regulator device node
+
vcca-supply:
description:
Phandle to vdd regulator device node
@@ -175,8 +221,6 @@ required:
- clocks
- clock-names
- phys
- - assigned-clocks
- - assigned-clock-parents
- ports
allOf:
@@ -190,6 +234,7 @@ allOf:
then:
properties:
clocks:
+ minItems: 7
maxItems: 7
clock-names:
items:
@@ -200,6 +245,9 @@ allOf:
- const: byte
- const: pixel
- const: core
+ required:
+ - assigned-clocks
+ - assigned-clock-parents
- if:
properties:
@@ -207,28 +255,12 @@ allOf:
contains:
enum:
- qcom,msm8916-dsi-ctrl
- then:
- properties:
- clocks:
- maxItems: 6
- clock-names:
- items:
- - const: mdp_core
- - const: iface
- - const: bus
- - const: byte
- - const: pixel
- - const: core
-
- - if:
- properties:
- compatible:
- contains:
- enum:
- qcom,msm8953-dsi-ctrl
+ - qcom,msm8976-dsi-ctrl
then:
properties:
clocks:
+ minItems: 6
maxItems: 6
clock-names:
items:
@@ -238,16 +270,21 @@ allOf:
- const: byte
- const: pixel
- const: core
+ required:
+ - assigned-clocks
+ - assigned-clock-parents
- if:
properties:
compatible:
contains:
enum:
+ - qcom,msm8226-dsi-ctrl
- qcom,msm8974-dsi-ctrl
then:
properties:
clocks:
+ minItems: 7
maxItems: 7
clock-names:
items:
@@ -258,6 +295,9 @@ allOf:
- const: pixel
- const: core
- const: core_mmss
+ required:
+ - assigned-clocks
+ - assigned-clock-parents
- if:
properties:
@@ -268,6 +308,7 @@ allOf:
then:
properties:
clocks:
+ minItems: 7
maxItems: 7
clock-names:
items:
@@ -278,6 +319,9 @@ allOf:
- const: core_mmss
- const: pixel
- const: core
+ required:
+ - assigned-clocks
+ - assigned-clock-parents
- if:
properties:
@@ -285,9 +329,28 @@ allOf:
contains:
enum:
- qcom,msm8998-dsi-ctrl
+ - qcom,sa8775p-dsi-ctrl
+ - qcom,sar2130p-dsi-ctrl
+ - qcom,sc7180-dsi-ctrl
+ - qcom,sc7280-dsi-ctrl
+ - qcom,sc8180x-dsi-ctrl
+ - qcom,sdm845-dsi-ctrl
+ - qcom,sm6115-dsi-ctrl
+ - qcom,sm6125-dsi-ctrl
+ - qcom,sm6350-dsi-ctrl
+ - qcom,sm6375-dsi-ctrl
+ - qcom,sm6150-dsi-ctrl
+ - qcom,sm7150-dsi-ctrl
+ - qcom,sm8150-dsi-ctrl
+ - qcom,sm8250-dsi-ctrl
+ - qcom,sm8350-dsi-ctrl
+ - qcom,sm8450-dsi-ctrl
+ - qcom,sm8550-dsi-ctrl
+ - qcom,sm8650-dsi-ctrl
then:
properties:
clocks:
+ minItems: 6
maxItems: 6
clock-names:
items:
@@ -297,23 +360,21 @@ allOf:
- const: core
- const: iface
- const: bus
+ required:
+ - assigned-clocks
+ - assigned-clock-parents
- if:
properties:
compatible:
contains:
enum:
- - qcom,sc7180-dsi-ctrl
- - qcom,sc7280-dsi-ctrl
- - qcom,sm8150-dsi-ctrl
- - qcom,sm8250-dsi-ctrl
- - qcom,sm8350-dsi-ctrl
- - qcom,sm8450-dsi-ctrl
- - qcom,sm8550-dsi-ctrl
+ - qcom,sm8750-dsi-ctrl
then:
properties:
clocks:
- maxItems: 6
+ minItems: 12
+ maxItems: 12
clock-names:
items:
- const: byte
@@ -322,6 +383,12 @@ allOf:
- const: core
- const: iface
- const: bus
+ - const: dsi_pll_pixel
+ - const: dsi_pll_byte
+ - const: esync
+ - const: osc
+ - const: byte_src
+ - const: pixel_src
- if:
properties:
@@ -332,6 +399,7 @@ allOf:
then:
properties:
clocks:
+ minItems: 9
maxItems: 9
clock-names:
items:
@@ -344,87 +412,71 @@ allOf:
- const: core_mmss
- const: pixel
- const: core
-
- - if:
- properties:
- compatible:
- contains:
- enum:
- - qcom,sdm845-dsi-ctrl
- - qcom,sm6115-dsi-ctrl
- then:
- properties:
- clocks:
- maxItems: 6
- clock-names:
- items:
- - const: byte
- - const: byte_intf
- - const: pixel
- - const: core
- - const: iface
- - const: bus
+ required:
+ - assigned-clocks
+ - assigned-clock-parents
unevaluatedProperties: false
examples:
- |
- #include <dt-bindings/interrupt-controller/arm-gic.h>
- #include <dt-bindings/clock/qcom,dispcc-sdm845.h>
- #include <dt-bindings/clock/qcom,gcc-sdm845.h>
- #include <dt-bindings/power/qcom-rpmpd.h>
-
- dsi@ae94000 {
- compatible = "qcom,sc7180-dsi-ctrl", "qcom,mdss-dsi-ctrl";
- reg = <0x0ae94000 0x400>;
- reg-names = "dsi_ctrl";
-
- #address-cells = <1>;
- #size-cells = <0>;
-
- interrupt-parent = <&mdss>;
- interrupts = <4>;
-
- clocks = <&dispcc DISP_CC_MDSS_BYTE0_CLK>,
- <&dispcc DISP_CC_MDSS_BYTE0_INTF_CLK>,
- <&dispcc DISP_CC_MDSS_PCLK0_CLK>,
- <&dispcc DISP_CC_MDSS_ESC0_CLK>,
- <&dispcc DISP_CC_MDSS_AHB_CLK>,
- <&dispcc DISP_CC_MDSS_AXI_CLK>;
- clock-names = "byte",
- "byte_intf",
- "pixel",
- "core",
- "iface",
- "bus";
-
- phys = <&dsi0_phy>;
- phy-names = "dsi";
-
- assigned-clocks = <&dispcc DISP_CC_MDSS_BYTE0_CLK_SRC>, <&dispcc DISP_CC_MDSS_PCLK0_CLK_SRC>;
- assigned-clock-parents = <&dsi_phy 0>, <&dsi_phy 1>;
-
- power-domains = <&rpmhpd SC7180_CX>;
- operating-points-v2 = <&dsi_opp_table>;
-
- ports {
- #address-cells = <1>;
- #size-cells = <0>;
-
- port@0 {
- reg = <0>;
- dsi0_in: endpoint {
- remote-endpoint = <&dpu_intf1_out>;
- };
- };
-
- port@1 {
- reg = <1>;
- dsi0_out: endpoint {
- remote-endpoint = <&sn65dsi86_in>;
- data-lanes = <0 1 2 3>;
- };
- };
- };
- };
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/qcom,dispcc-sdm845.h>
+ #include <dt-bindings/clock/qcom,gcc-sdm845.h>
+ #include <dt-bindings/power/qcom-rpmpd.h>
+
+ dsi@ae94000 {
+ compatible = "qcom,sc7180-dsi-ctrl", "qcom,mdss-dsi-ctrl";
+ reg = <0x0ae94000 0x400>;
+ reg-names = "dsi_ctrl";
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ interrupt-parent = <&mdss>;
+ interrupts = <4>;
+
+ clocks = <&dispcc DISP_CC_MDSS_BYTE0_CLK>,
+ <&dispcc DISP_CC_MDSS_BYTE0_INTF_CLK>,
+ <&dispcc DISP_CC_MDSS_PCLK0_CLK>,
+ <&dispcc DISP_CC_MDSS_ESC0_CLK>,
+ <&dispcc DISP_CC_MDSS_AHB_CLK>,
+ <&dispcc DISP_CC_MDSS_AXI_CLK>;
+ clock-names = "byte",
+ "byte_intf",
+ "pixel",
+ "core",
+ "iface",
+ "bus";
+
+ phys = <&dsi0_phy>;
+ phy-names = "dsi";
+
+ assigned-clocks = <&dispcc DISP_CC_MDSS_BYTE0_CLK_SRC>, <&dispcc DISP_CC_MDSS_PCLK0_CLK_SRC>;
+ assigned-clock-parents = <&dsi_phy 0>, <&dsi_phy 1>;
+
+ power-domains = <&rpmhpd SC7180_CX>;
+ operating-points-v2 = <&dsi_opp_table>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ endpoint {
+ remote-endpoint = <&dpu_intf1_out>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ endpoint {
+ remote-endpoint = <&sn65dsi86_in>;
+ data-lanes = <0 1 2 3>;
+ qcom,te-source = "mdp_vsync_e";
+ };
+ };
+ };
+ };
...
diff --git a/Documentation/devicetree/bindings/display/msm/dsi-phy-10nm.yaml b/Documentation/devicetree/bindings/display/msm/dsi-phy-10nm.yaml
index e6b00d7387ce..fc9abf090f0d 100644
--- a/Documentation/devicetree/bindings/display/msm/dsi-phy-10nm.yaml
+++ b/Documentation/devicetree/bindings/display/msm/dsi-phy-10nm.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/msm/dsi-phy-10nm.yaml#
@@ -74,28 +74,28 @@ unevaluatedProperties: false
examples:
- |
- #include <dt-bindings/clock/qcom,dispcc-sdm845.h>
- #include <dt-bindings/clock/qcom,rpmh.h>
-
- dsi-phy@ae94400 {
- compatible = "qcom,dsi-phy-10nm";
- reg = <0x0ae94400 0x200>,
- <0x0ae94600 0x280>,
- <0x0ae94a00 0x1e0>;
- reg-names = "dsi_phy",
- "dsi_phy_lane",
- "dsi_pll";
-
- #clock-cells = <1>;
- #phy-cells = <0>;
-
- vdds-supply = <&vdda_mipi_dsi0_pll>;
- clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
- <&rpmhcc RPMH_CXO_CLK>;
- clock-names = "iface", "ref";
-
- qcom,phy-rescode-offset-top = /bits/ 8 <0 0 0 0 0>;
- qcom,phy-rescode-offset-bot = /bits/ 8 <0 0 0 0 0>;
- qcom,phy-drive-ldo-level = <400>;
- };
+ #include <dt-bindings/clock/qcom,dispcc-sdm845.h>
+ #include <dt-bindings/clock/qcom,rpmh.h>
+
+ dsi-phy@ae94400 {
+ compatible = "qcom,dsi-phy-10nm";
+ reg = <0x0ae94400 0x200>,
+ <0x0ae94600 0x280>,
+ <0x0ae94a00 0x1e0>;
+ reg-names = "dsi_phy",
+ "dsi_phy_lane",
+ "dsi_pll";
+
+ #clock-cells = <1>;
+ #phy-cells = <0>;
+
+ vdds-supply = <&vdda_mipi_dsi0_pll>;
+ clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
+ <&rpmhcc RPMH_CXO_CLK>;
+ clock-names = "iface", "ref";
+
+ qcom,phy-rescode-offset-top = /bits/ 8 <0 0 0 0 0>;
+ qcom,phy-rescode-offset-bot = /bits/ 8 <0 0 0 0 0>;
+ qcom,phy-drive-ldo-level = <400>;
+ };
...
diff --git a/Documentation/devicetree/bindings/display/msm/dsi-phy-14nm.yaml b/Documentation/devicetree/bindings/display/msm/dsi-phy-14nm.yaml
index a43e11d3b00d..206a9a4b3845 100644
--- a/Documentation/devicetree/bindings/display/msm/dsi-phy-14nm.yaml
+++ b/Documentation/devicetree/bindings/display/msm/dsi-phy-14nm.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/msm/dsi-phy-14nm.yaml#
@@ -19,6 +19,8 @@ properties:
- qcom,dsi-phy-14nm-2290
- qcom,dsi-phy-14nm-660
- qcom,dsi-phy-14nm-8953
+ - qcom,sm6125-dsi-phy-14nm
+ - qcom,sm6150-dsi-phy-14nm
reg:
items:
@@ -35,6 +37,16 @@ properties:
vcca-supply:
description: Phandle to vcca regulator device node.
+ power-domains:
+ description:
+ A phandle and PM domain specifier for an optional power domain.
+ maxItems: 1
+
+ required-opps:
+ description:
+ A phandle to an OPP node describing the power domain's performance point.
+ maxItems: 1
+
required:
- compatible
- reg
@@ -44,24 +56,24 @@ unevaluatedProperties: false
examples:
- |
- #include <dt-bindings/clock/qcom,dispcc-sdm845.h>
- #include <dt-bindings/clock/qcom,rpmh.h>
+ #include <dt-bindings/clock/qcom,dispcc-sdm845.h>
+ #include <dt-bindings/clock/qcom,rpmh.h>
- dsi-phy@ae94400 {
- compatible = "qcom,dsi-phy-14nm";
- reg = <0x0ae94400 0x200>,
- <0x0ae94600 0x280>,
- <0x0ae94a00 0x1e0>;
- reg-names = "dsi_phy",
- "dsi_phy_lane",
- "dsi_pll";
+ dsi-phy@ae94400 {
+ compatible = "qcom,dsi-phy-14nm";
+ reg = <0x0ae94400 0x200>,
+ <0x0ae94600 0x280>,
+ <0x0ae94a00 0x1e0>;
+ reg-names = "dsi_phy",
+ "dsi_phy_lane",
+ "dsi_pll";
- #clock-cells = <1>;
- #phy-cells = <0>;
+ #clock-cells = <1>;
+ #phy-cells = <0>;
- vcca-supply = <&vcca_reg>;
- clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
- <&rpmhcc RPMH_CXO_CLK>;
- clock-names = "iface", "ref";
- };
+ vcca-supply = <&vcca_reg>;
+ clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
+ <&rpmhcc RPMH_CXO_CLK>;
+ clock-names = "iface", "ref";
+ };
...
diff --git a/Documentation/devicetree/bindings/display/msm/dsi-phy-20nm.yaml b/Documentation/devicetree/bindings/display/msm/dsi-phy-20nm.yaml
index 9c1f9140c731..93570052992a 100644
--- a/Documentation/devicetree/bindings/display/msm/dsi-phy-20nm.yaml
+++ b/Documentation/devicetree/bindings/display/msm/dsi-phy-20nm.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/msm/dsi-phy-20nm.yaml#
@@ -45,26 +45,26 @@ unevaluatedProperties: false
examples:
- |
- #include <dt-bindings/clock/qcom,dispcc-sdm845.h>
- #include <dt-bindings/clock/qcom,rpmh.h>
+ #include <dt-bindings/clock/qcom,dispcc-sdm845.h>
+ #include <dt-bindings/clock/qcom,rpmh.h>
- dsi-phy@fd922a00 {
- compatible = "qcom,dsi-phy-20nm";
- reg = <0xfd922a00 0xd4>,
- <0xfd922b00 0x2b0>,
- <0xfd922d80 0x7b>;
- reg-names = "dsi_pll",
- "dsi_phy",
- "dsi_phy_regulator";
+ dsi-phy@fd922a00 {
+ compatible = "qcom,dsi-phy-20nm";
+ reg = <0xfd922a00 0xd4>,
+ <0xfd922b00 0x2b0>,
+ <0xfd922d80 0x7b>;
+ reg-names = "dsi_pll",
+ "dsi_phy",
+ "dsi_phy_regulator";
- #clock-cells = <1>;
- #phy-cells = <0>;
+ #clock-cells = <1>;
+ #phy-cells = <0>;
- vcca-supply = <&vcca_reg>;
- vddio-supply = <&vddio_reg>;
+ vcca-supply = <&vcca_reg>;
+ vddio-supply = <&vddio_reg>;
- clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
- <&rpmhcc RPMH_CXO_CLK>;
- clock-names = "iface", "ref";
- };
+ clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
+ <&rpmhcc RPMH_CXO_CLK>;
+ clock-names = "iface", "ref";
+ };
...
diff --git a/Documentation/devicetree/bindings/display/msm/dsi-phy-28nm.yaml b/Documentation/devicetree/bindings/display/msm/dsi-phy-28nm.yaml
index cf4a338c4661..371befa9f9d2 100644
--- a/Documentation/devicetree/bindings/display/msm/dsi-phy-28nm.yaml
+++ b/Documentation/devicetree/bindings/display/msm/dsi-phy-28nm.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/msm/dsi-phy-28nm.yaml#
@@ -15,10 +15,12 @@ allOf:
properties:
compatible:
enum:
+ - qcom,dsi-phy-28nm-8226
+ - qcom,dsi-phy-28nm-8937
+ - qcom,dsi-phy-28nm-8960
- qcom,dsi-phy-28nm-hpm
- qcom,dsi-phy-28nm-hpm-fam-b
- qcom,dsi-phy-28nm-lp
- - qcom,dsi-phy-28nm-8960
reg:
items:
@@ -49,25 +51,25 @@ unevaluatedProperties: false
examples:
- |
- #include <dt-bindings/clock/qcom,dispcc-sdm845.h>
- #include <dt-bindings/clock/qcom,rpmh.h>
+ #include <dt-bindings/clock/qcom,dispcc-sdm845.h>
+ #include <dt-bindings/clock/qcom,rpmh.h>
- dsi-phy@fd922a00 {
- compatible = "qcom,dsi-phy-28nm-lp";
- reg = <0xfd922a00 0xd4>,
- <0xfd922b00 0x2b0>,
- <0xfd922d80 0x7b>;
- reg-names = "dsi_pll",
- "dsi_phy",
- "dsi_phy_regulator";
+ dsi-phy@fd922a00 {
+ compatible = "qcom,dsi-phy-28nm-lp";
+ reg = <0xfd922a00 0xd4>,
+ <0xfd922b00 0x2b0>,
+ <0xfd922d80 0x7b>;
+ reg-names = "dsi_pll",
+ "dsi_phy",
+ "dsi_phy_regulator";
- #clock-cells = <1>;
- #phy-cells = <0>;
+ #clock-cells = <1>;
+ #phy-cells = <0>;
- vddio-supply = <&vddio_reg>;
+ vddio-supply = <&vddio_reg>;
- clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
- <&rpmhcc RPMH_CXO_CLK>;
- clock-names = "iface", "ref";
- };
+ clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
+ <&rpmhcc RPMH_CXO_CLK>;
+ clock-names = "iface", "ref";
+ };
...
diff --git a/Documentation/devicetree/bindings/display/msm/dsi-phy-7nm.yaml b/Documentation/devicetree/bindings/display/msm/dsi-phy-7nm.yaml
index 8e9031bbde73..1ca820a500b7 100644
--- a/Documentation/devicetree/bindings/display/msm/dsi-phy-7nm.yaml
+++ b/Documentation/devicetree/bindings/display/msm/dsi-phy-7nm.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/msm/dsi-phy-7nm.yaml#
@@ -17,11 +17,15 @@ properties:
enum:
- qcom,dsi-phy-7nm
- qcom,dsi-phy-7nm-8150
+ - qcom,sa8775p-dsi-phy-5nm
+ - qcom,sar2130p-dsi-phy-5nm
- qcom,sc7280-dsi-phy-7nm
- qcom,sm6375-dsi-phy-7nm
- qcom,sm8350-dsi-phy-5nm
- qcom,sm8450-dsi-phy-5nm
- qcom,sm8550-dsi-phy-4nm
+ - qcom,sm8650-dsi-phy-4nm
+ - qcom,sm8750-dsi-phy-3nm
reg:
items:
@@ -53,23 +57,23 @@ unevaluatedProperties: false
examples:
- |
- #include <dt-bindings/clock/qcom,dispcc-sm8250.h>
- #include <dt-bindings/clock/qcom,rpmh.h>
+ #include <dt-bindings/clock/qcom,dispcc-sm8250.h>
+ #include <dt-bindings/clock/qcom,rpmh.h>
- dsi-phy@ae94400 {
- compatible = "qcom,dsi-phy-7nm";
- reg = <0x0ae94400 0x200>,
- <0x0ae94600 0x280>,
- <0x0ae94900 0x260>;
- reg-names = "dsi_phy",
- "dsi_phy_lane",
- "dsi_pll";
+ dsi-phy@ae94400 {
+ compatible = "qcom,dsi-phy-7nm";
+ reg = <0x0ae94400 0x200>,
+ <0x0ae94600 0x280>,
+ <0x0ae94900 0x260>;
+ reg-names = "dsi_phy",
+ "dsi_phy_lane",
+ "dsi_pll";
- #clock-cells = <1>;
- #phy-cells = <0>;
+ #clock-cells = <1>;
+ #phy-cells = <0>;
- vdds-supply = <&vreg_l5a_0p88>;
- clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
- <&rpmhcc RPMH_CXO_CLK>;
- clock-names = "iface", "ref";
- };
+ vdds-supply = <&vreg_l5a_0p88>;
+ clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
+ <&rpmhcc RPMH_CXO_CLK>;
+ clock-names = "iface", "ref";
+ };
diff --git a/Documentation/devicetree/bindings/display/msm/dsi-phy-common.yaml b/Documentation/devicetree/bindings/display/msm/dsi-phy-common.yaml
index 0f6f08890e7e..d0ce85a08b6d 100644
--- a/Documentation/devicetree/bindings/display/msm/dsi-phy-common.yaml
+++ b/Documentation/devicetree/bindings/display/msm/dsi-phy-common.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/msm/dsi-phy-common.yaml#
@@ -15,6 +15,8 @@ description:
properties:
"#clock-cells":
const: 1
+ description:
+ See include/dt-bindings/clock/qcom,dsi-phy-28nm.h for clock IDs.
"#phy-cells":
const: 0
diff --git a/Documentation/devicetree/bindings/display/msm/gmu.yaml b/Documentation/devicetree/bindings/display/msm/gmu.yaml
index 029d72822d8b..e32056ae0f5d 100644
--- a/Documentation/devicetree/bindings/display/msm/gmu.yaml
+++ b/Documentation/devicetree/bindings/display/msm/gmu.yaml
@@ -19,16 +19,21 @@ description: |
properties:
compatible:
- items:
- - pattern: '^qcom,adreno-gmu-6[0-9][0-9]\.[0-9]$'
- - const: qcom,adreno-gmu
+ oneOf:
+ - items:
+ - pattern: '^qcom,adreno-gmu-[6-8][0-9][0-9]\.[0-9]$'
+ - const: qcom,adreno-gmu
+ - items:
+ - pattern: '^qcom,adreno-gmu-x[1-9][0-9][0-9]\.[0-9]$'
+ - const: qcom,adreno-gmu
+ - const: qcom,adreno-gmu-wrapper
reg:
- minItems: 3
+ minItems: 1
maxItems: 4
reg-names:
- minItems: 3
+ minItems: 1
maxItems: 4
clocks:
@@ -44,7 +49,6 @@ properties:
- description: GMU HFI interrupt
- description: GMU interrupt
-
interrupt-names:
items:
- const: hfi
@@ -63,6 +67,10 @@ properties:
iommus:
maxItems: 1
+ qcom,qmp:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: Reference to the AOSS side-channel message RAM
+
operating-points-v2: true
opp-table:
@@ -72,14 +80,8 @@ required:
- compatible
- reg
- reg-names
- - clocks
- - clock-names
- - interrupts
- - interrupt-names
- power-domains
- power-domain-names
- - iommus
- - operating-points-v2
additionalProperties: false
@@ -121,7 +123,44 @@ allOf:
compatible:
contains:
enum:
+ - qcom,adreno-gmu-623.0
+ then:
+ properties:
+ reg:
+ items:
+ - description: Core GMU registers
+ - description: Resource controller registers
+ - description: GMU PDC registers
+ reg-names:
+ items:
+ - const: gmu
+ - const: rscc
+ - const: gmu_pdc
+ clocks:
+ items:
+ - description: GMU clock
+ - description: GPU CX clock
+ - description: GPU AXI clock
+ - description: GPU MEMNOC clock
+ - description: GPU AHB clock
+ - description: GPU HUB CX clock
+ clock-names:
+ items:
+ - const: gmu
+ - const: cxo
+ - const: axi
+ - const: memnoc
+ - const: ahb
+ - const: hub
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
- qcom,adreno-gmu-635.0
+ - qcom,adreno-gmu-660.1
+ - qcom,adreno-gmu-663.0
then:
properties:
reg:
@@ -217,6 +256,129 @@ allOf:
- const: axi
- const: memnoc
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,adreno-gmu-730.1
+ - qcom,adreno-gmu-740.1
+ - qcom,adreno-gmu-750.1
+ - qcom,adreno-gmu-x185.1
+ then:
+ properties:
+ reg:
+ items:
+ - description: Core GMU registers
+ - description: Resource controller registers
+ - description: GMU PDC registers
+ reg-names:
+ items:
+ - const: gmu
+ - const: rscc
+ - const: gmu_pdc
+ clocks:
+ items:
+ - description: GPU AHB clock
+ - description: GMU clock
+ - description: GPU CX clock
+ - description: GPU AXI clock
+ - description: GPU MEMNOC clock
+ - description: GMU HUB clock
+ - description: GPUSS DEMET clock
+ clock-names:
+ items:
+ - const: ahb
+ - const: gmu
+ - const: cxo
+ - const: axi
+ - const: memnoc
+ - const: hub
+ - const: demet
+
+ required:
+ - qcom,qmp
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: qcom,adreno-gmu-840.1
+ then:
+ properties:
+ reg:
+ items:
+ - description: Core GMU registers
+ reg-names:
+ items:
+ - const: gmu
+ clocks:
+ items:
+ - description: GPU AHB clock
+ - description: GMU clock
+ - description: GPU CX clock
+ - description: GPU MEMNOC clock
+ - description: GMU HUB clock
+ clock-names:
+ items:
+ - const: ahb
+ - const: gmu
+ - const: cxo
+ - const: memnoc
+ - const: hub
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: qcom,adreno-gmu-x285.1
+ then:
+ properties:
+ reg:
+ items:
+ - description: Core GMU registers
+ reg-names:
+ items:
+ - const: gmu
+ clocks:
+ items:
+ - description: GPU AHB clock
+ - description: GMU clock
+ - description: GPU CX clock
+ - description: GPU MEMNOC clock
+ - description: GMU HUB clock
+ - description: GMU RSCC HUB clock
+ clock-names:
+ items:
+ - const: ahb
+ - const: gmu
+ - const: cxo
+ - const: memnoc
+ - const: hub
+ - const: rscc
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: qcom,adreno-gmu-wrapper
+ then:
+ properties:
+ reg:
+ items:
+ - description: GMU wrapper register space
+ reg-names:
+ items:
+ - const: gmu
+ else:
+ required:
+ - clocks
+ - clock-names
+ - interrupts
+ - interrupt-names
+ - iommus
+ - operating-points-v2
+
examples:
- |
#include <dt-bindings/clock/qcom,gpucc-sdm845.h>
@@ -225,7 +387,7 @@ examples:
#include <dt-bindings/interrupt-controller/arm-gic.h>
gmu: gmu@506a000 {
- compatible="qcom,adreno-gmu-630.2", "qcom,adreno-gmu";
+ compatible = "qcom,adreno-gmu-630.2", "qcom,adreno-gmu";
reg = <0x506a000 0x30000>,
<0xb280000 0x10000>,
@@ -249,3 +411,12 @@ examples:
iommus = <&adreno_smmu 5>;
operating-points-v2 = <&gmu_opp_table>;
};
+
+ gmu_wrapper: gmu@596a000 {
+ compatible = "qcom,adreno-gmu-wrapper";
+ reg = <0x0596a000 0x30000>;
+ reg-names = "gmu";
+ power-domains = <&gpucc GPU_CX_GDSC>,
+ <&gpucc GPU_GX_GDSC>;
+ power-domain-names = "cx", "gx";
+ };
diff --git a/Documentation/devicetree/bindings/display/msm/gpu.yaml b/Documentation/devicetree/bindings/display/msm/gpu.yaml
index 5dabe7b6794b..826aafdcc20b 100644
--- a/Documentation/devicetree/bindings/display/msm/gpu.yaml
+++ b/Documentation/devicetree/bindings/display/msm/gpu.yaml
@@ -10,14 +10,32 @@ title: Adreno or Snapdragon GPUs
maintainers:
- Rob Clark <robdclark@gmail.com>
+# dtschema does not select nodes based on pattern+const, so add custom select
+# as a work-around:
+select:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,adreno
+ - amd,imageon
+ required:
+ - compatible
+
properties:
compatible:
oneOf:
- description: |
The driver is parsing the compat string for Adreno to
+ figure out the chip-id.
+ items:
+ - pattern: '^qcom,adreno-[0-9a-f]{8}$'
+ - const: qcom,adreno
+ - description: |
+ The driver is parsing the compat string for Adreno to
figure out the gpu-id and patch level.
items:
- - pattern: '^qcom,adreno-[3-6][0-9][0-9]\.[0-9]$'
+ - pattern: '^qcom,adreno-[3-7][0-9][0-9]\.[0-9]+$'
- const: qcom,adreno
- description: |
The driver is parsing the compat string for Imageon to
@@ -26,9 +44,13 @@ properties:
- pattern: '^amd,imageon-200\.[0-1]$'
- const: amd,imageon
- clocks: true
+ clocks:
+ minItems: 2
+ maxItems: 7
- clock-names: true
+ clock-names:
+ minItems: 2
+ maxItems: 7
reg:
minItems: 1
@@ -111,7 +133,6 @@ properties:
For GMU attached devices a phandle to the GMU device that will
control the power for the GPU.
-
required:
- compatible
- reg
@@ -124,49 +145,268 @@ allOf:
properties:
compatible:
contains:
- pattern: '^qcom,adreno-[3-5][0-9][0-9]\.[0-9]$'
+ oneOf:
+ - pattern: '^qcom,adreno-305\.[0-9]+$'
+ - pattern: '^qcom,adreno-330\.[0-9]+$'
+ then:
+ properties:
+ clocks:
+ minItems: 3
+ maxItems: 3
+ clock-names:
+ items:
+ - const: core
+ description: GPU Core clock
+ - const: iface
+ description: GPU Interface clock
+ - const: mem_iface
+ description: GPU Memory Interface clock
+ - if:
+ properties:
+ compatible:
+ contains:
+ pattern: '^qcom,adreno-306\.[0-9]+$'
then:
properties:
clocks:
- minItems: 2
- maxItems: 7
+ minItems: 5
+ maxItems: 6
+ clock-names:
+ oneOf:
+ - items:
+ - const: core
+ description: GPU Core clock
+ - const: iface
+ description: GPU Interface clock
+ - const: mem_iface
+ description: GPU Memory Interface clock
+ - const: alt_mem_iface
+ description: GPU Alternative Memory Interface clock
+ - const: gfx3d
+ description: GPU 3D engine clock
+ - items:
+ - const: core
+ description: GPU Core clock
+ - const: iface
+ description: GPU Interface clock
+ - const: mem
+ description: GPU Memory clock
+ - const: mem_iface
+ description: GPU Memory Interface clock
+ - const: alt_mem_iface
+ description: GPU Alternative Memory Interface clock
+ - const: gfx3d
+ description: GPU 3D engine clock
+ - if:
+ properties:
+ compatible:
+ contains:
+ pattern: '^qcom,adreno-320\.[0-9]+$'
+ then:
+ properties:
+ clocks:
+ minItems: 4
+ maxItems: 4
clock-names:
items:
- anyOf:
- - const: core
- description: GPU Core clock
- - const: iface
- description: GPU Interface clock
- - const: mem
- description: GPU Memory clock
- - const: mem_iface
- description: GPU Memory Interface clock
- - const: alt_mem_iface
- description: GPU Alternative Memory Interface clock
- - const: gfx3d
- description: GPU 3D engine clock
- - const: rbbmtimer
- description: GPU RBBM Timer for Adreno 5xx series
- - const: rbcpr
- description: GPU RB Core Power Reduction clock
- minItems: 2
+ - const: core
+ description: GPU Core clock
+ - const: iface
+ description: GPU Interface clock
+ - const: mem
+ description: GPU Memory clock
+ - const: mem_iface
+ description: GPU Memory Interface clock
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ pattern: '^qcom,adreno-405\.[0-9]+$'
+ then:
+ properties:
+ clocks:
+ minItems: 7
maxItems: 7
+ clock-names:
+ items:
+ - const: core
+ description: GPU Core clock
+ - const: iface
+ description: GPU Interface clock
+ - const: mem
+ description: GPU Memory clock
+ - const: mem_iface
+ description: GPU Memory Interface clock
+ - const: alt_mem_iface
+ description: GPU Alternative Memory Interface clock
+ - const: gfx3d
+ description: GPU 3D engine clock
+ - const: rbbmtimer
+ description: GPU RBBM Timer for Adreno 5xx series
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ pattern: '^qcom,adreno-50[56]\.[0-9]+$'
+ then:
+ properties:
+ clocks:
+ minItems: 6
+ maxItems: 6
+ clock-names:
+ items:
+ - const: core
+ description: GPU Core clock
+ - const: iface
+ description: GPU Interface clock
+ - const: mem_iface
+ description: GPU Memory Interface clock
+ - const: alt_mem_iface
+ description: GPU Alternative Memory Interface clock
+ - const: rbbmtimer
+ description: GPU RBBM Timer for Adreno 5xx series
+ - const: alwayson
+ description: GPU AON clock
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ oneOf:
+ - pattern: '^qcom,adreno-508\.[0-9]+$'
+ - pattern: '^qcom,adreno-509\.[0-9]+$'
+ - pattern: '^qcom,adreno-512\.[0-9]+$'
+ - pattern: '^qcom,adreno-540\.[0-9]+$'
+ then:
+ properties:
+ clocks:
+ minItems: 6
+ maxItems: 6
+ clock-names:
+ items:
+ - const: iface
+ description: GPU Interface clock
+ - const: rbbmtimer
+ description: GPU RBBM Timer for Adreno 5xx series
+ - const: mem
+ description: GPU Memory clock
+ - const: mem_iface
+ description: GPU Memory Interface clock
+ - const: rbcpr
+ description: GPU RB Core Power Reduction clock
+ - const: core
+ description: GPU Core clock
- required:
- - clocks
- - clock-names
- if:
properties:
compatible:
contains:
- pattern: '^qcom,adreno-6[0-9][0-9]\.[0-9]$'
+ pattern: '^qcom,adreno-510\.[0-9]+$'
+ then:
+ properties:
+ clocks:
+ minItems: 6
+ maxItems: 6
+ clock-names:
+ items:
+ - const: core
+ description: GPU Core clock
+ - const: iface
+ description: GPU Interface clock
+ - const: mem
+ description: GPU Memory clock
+ - const: mem_iface
+ description: GPU Memory Interface clock
+ - const: rbbmtimer
+ description: GPU RBBM Timer for Adreno 5xx series
+ - const: alwayson
+ description: GPU AON clock
- then: # Since Adreno 6xx series clocks should be defined in GMU
+ - if:
properties:
- clocks: false
- clock-names: false
+ compatible:
+ contains:
+ pattern: '^qcom,adreno-530\.[0-9]+$'
+ then:
+ properties:
+ clocks:
+ minItems: 5
+ maxItems: 5
+ clock-names:
+ items:
+ - const: core
+ description: GPU Core clock
+ - const: iface
+ description: GPU Interface clock
+ - const: rbbmtimer
+ description: GPU RBBM Timer for Adreno 5xx series
+ - const: mem
+ description: GPU Memory clock
+ - const: mem_iface
+ description: GPU Memory Interface clock
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,adreno-610.0
+ - qcom,adreno-619.1
+ - qcom,adreno-07000200
+ then:
+ properties:
+ clocks:
+ minItems: 6
+ maxItems: 6
+
+ clock-names:
+ items:
+ - const: core
+ description: GPU Core clock
+ - const: iface
+ description: GPU Interface clock
+ - const: mem_iface
+ description: GPU Memory Interface clock
+ - const: alt_mem_iface
+ description: GPU Alternative Memory Interface clock
+ - const: gmu
+ description: CX GMU clock
+ - const: xo
+ description: GPUCC clocksource clock
+
+ reg-names:
+ minItems: 1
+ items:
+ - const: kgsl_3d0_reg_memory
+ - const: cx_dbgc
+
+ required:
+ - clocks
+ - clock-names
+ else:
+ if:
+ properties:
+ compatible:
+ contains:
+ oneOf:
+ - pattern: '^qcom,adreno-[67][0-9][0-9]\.[0-9]+$'
+ - pattern: '^qcom,adreno-[0-9a-f]{8}$'
+
+ then: # Starting with A6xx, the clocks are usually defined in the GMU node
+ properties:
+ clocks: false
+ clock-names: false
+
+ reg-names:
+ minItems: 1
+ items:
+ - const: kgsl_3d0_reg_memory
+ - const: cx_mem
+ - const: cx_dbgc
examples:
- |
diff --git a/Documentation/devicetree/bindings/display/msm/hdmi.yaml b/Documentation/devicetree/bindings/display/msm/hdmi.yaml
index 47e97669821c..dfec6c3480f3 100644
--- a/Documentation/devicetree/bindings/display/msm/hdmi.yaml
+++ b/Documentation/devicetree/bindings/display/msm/hdmi.yaml
@@ -19,14 +19,15 @@ properties:
- qcom,hdmi-tx-8974
- qcom,hdmi-tx-8994
- qcom,hdmi-tx-8996
+ - qcom,hdmi-tx-8998
clocks:
minItems: 1
- maxItems: 5
+ maxItems: 8
clock-names:
minItems: 1
- maxItems: 5
+ maxItems: 8
reg:
minItems: 1
@@ -65,21 +66,6 @@ properties:
maxItems: 1
description: hpd pin
- qcom,hdmi-tx-mux-en-gpios:
- maxItems: 1
- deprecated: true
- description: HDMI mux enable pin
-
- qcom,hdmi-tx-mux-sel-gpios:
- maxItems: 1
- deprecated: true
- description: HDMI mux select pin
-
- qcom,hdmi-tx-mux-lpm-gpios:
- maxItems: 1
- deprecated: true
- description: HDMI mux lpm pin
-
'#sound-dai-cells':
const: 1
@@ -88,12 +74,12 @@ properties:
$ref: /schemas/graph.yaml#/properties/ports
properties:
port@0:
- $ref: /schemas/graph.yaml#/$defs/port-base
+ $ref: /schemas/graph.yaml#/properties/port
description: |
Input endpoints of the controller.
port@1:
- $ref: /schemas/graph.yaml#/$defs/port-base
+ $ref: /schemas/graph.yaml#/properties/port
description: |
Output endpoints of the controller.
@@ -142,6 +128,7 @@ allOf:
properties:
clocks:
minItems: 5
+ maxItems: 5
clock-names:
items:
- const: mdp_core
@@ -151,6 +138,28 @@ allOf:
- const: extp
hdmi-mux-supplies: false
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,hdmi-tx-8998
+ then:
+ properties:
+ clocks:
+ minItems: 8
+ maxItems: 8
+ clock-names:
+ items:
+ - const: mdp_core
+ - const: iface
+ - const: core
+ - const: alt_iface
+ - const: extp
+ - const: bus
+ - const: mnoc
+ - const: iface_mmss
+
additionalProperties: false
examples:
diff --git a/Documentation/devicetree/bindings/display/msm/mdp4.yaml b/Documentation/devicetree/bindings/display/msm/mdp4.yaml
index 35204a287579..03ee09faa335 100644
--- a/Documentation/devicetree/bindings/display/msm/mdp4.yaml
+++ b/Documentation/devicetree/bindings/display/msm/mdp4.yaml
@@ -18,9 +18,10 @@ properties:
clocks:
minItems: 6
- maxItems: 6
+ maxItems: 8
clock-names:
+ minItems: 6
items:
- const: core_clk
- const: iface_clk
@@ -28,6 +29,12 @@ properties:
- const: lut_clk
- const: hdmi_clk
- const: tv_clk
+ - const: lcdc_clk
+ - const: pxo
+ description: XO used to drive the internal LVDS PLL
+
+ '#clock-cells':
+ const: 0
reg:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/display/msm/mdss-common.yaml b/Documentation/devicetree/bindings/display/msm/mdss-common.yaml
index ccd7d6417523..c6305a6e0334 100644
--- a/Documentation/devicetree/bindings/display/msm/mdss-common.yaml
+++ b/Documentation/devicetree/bindings/display/msm/mdss-common.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/msm/mdss-common.yaml#
@@ -61,22 +61,38 @@ properties:
ranges: true
+ # This is not a perfect description, but it's impossible to discern and match
+ # the entries like we do with interconnect-names
interconnects:
minItems: 1
items:
- description: Interconnect path from mdp0 (or a single mdp) port to the data bus
- description: Interconnect path from mdp1 port to the data bus
+ - description: Interconnect path from CPU to the reg bus
interconnect-names:
- minItems: 1
- items:
- - const: mdp0-mem
- - const: mdp1-mem
+ oneOf:
+ - minItems: 1
+ items:
+ - const: mdp0-mem
+ - const: cpu-cfg
+
+ - minItems: 2
+ items:
+ - const: mdp0-mem
+ - const: mdp1-mem
+ - const: cpu-cfg
resets:
items:
- description: MDSS_CORE reset
+ memory-region:
+ maxItems: 1
+ description:
+ Phandle to a node describing a reserved framebuffer memory region.
+ For example, the splash memory region set up by the bootloader.
+
required:
- reg
- reg-names
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,glymur-mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,glymur-mdss.yaml
new file mode 100644
index 000000000000..2329ed96e6cb
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/msm/qcom,glymur-mdss.yaml
@@ -0,0 +1,264 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/msm/qcom,glymur-mdss.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Glymur Display MDSS
+
+maintainers:
+ - Abel Vesa <abel.vesa@linaro.org>
+
+description:
+ Glymur MSM Mobile Display Subsystem(MDSS), which encapsulates sub-blocks like
+ DPU display controller, DP interfaces, etc.
+
+$ref: /schemas/display/msm/mdss-common.yaml#
+
+properties:
+ compatible:
+ const: qcom,glymur-mdss
+
+ clocks:
+ items:
+ - description: Display AHB
+ - description: Display hf AXI
+ - description: Display core
+
+ iommus:
+ maxItems: 1
+
+ interconnects:
+ items:
+ - description: Interconnect path from mdp0 port to the data bus
+ - description: Interconnect path from CPU to the reg bus
+
+ interconnect-names:
+ items:
+ - const: mdp0-mem
+ - const: cpu-cfg
+
+patternProperties:
+ "^display-controller@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+ properties:
+ compatible:
+ const: qcom,glymur-dpu
+
+ "^displayport-controller@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+ properties:
+ compatible:
+ const: qcom,glymur-dp
+
+ "^phy@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+ properties:
+ compatible:
+ const: qcom,glymur-dp-phy
+
+required:
+ - compatible
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,rpmh.h>
+ #include <dt-bindings/interconnect/qcom,icc.h>
+ #include <dt-bindings/interconnect/qcom,glymur-rpmh.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/phy/phy-qcom-qmp.h>
+ #include <dt-bindings/power/qcom,rpmhpd.h>
+
+ display-subsystem@ae00000 {
+ compatible = "qcom,glymur-mdss";
+ reg = <0x0ae00000 0x1000>;
+ reg-names = "mdss";
+
+ interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
+
+ clocks = <&dispcc_ahb_clk>,
+ <&gcc_disp_hf_axi_clk>,
+ <&dispcc_mdp_clk>;
+ clock-names = "bus", "nrt_bus", "core";
+
+ interconnects = <&mmss_noc MASTER_MDP QCOM_ICC_TAG_ALWAYS
+ &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>,
+ <&hsc_noc MASTER_APPSS_PROC QCOM_ICC_TAG_ACTIVE_ONLY
+ &config_noc SLAVE_DISPLAY_CFG QCOM_ICC_TAG_ACTIVE_ONLY>;
+ interconnect-names = "mdp0-mem",
+ "cpu-cfg";
+
+ resets = <&disp_cc_mdss_core_bcr>;
+
+ power-domains = <&mdss_gdsc>;
+
+ iommus = <&apps_smmu 0x1c00 0x2>;
+
+ interrupt-controller;
+ #interrupt-cells = <1>;
+
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ display-controller@ae01000 {
+ compatible = "qcom,glymur-dpu";
+ reg = <0x0ae01000 0x8f000>,
+ <0x0aeb0000 0x2008>;
+ reg-names = "mdp", "vbif";
+
+ clocks = <&gcc_axi_clk>,
+ <&dispcc_ahb_clk>,
+ <&dispcc_mdp_lut_clk>,
+ <&dispcc_mdp_clk>,
+ <&dispcc_mdp_vsync_clk>;
+ clock-names = "nrt_bus",
+ "iface",
+ "lut",
+ "core",
+ "vsync";
+
+ assigned-clocks = <&dispcc_mdp_vsync_clk>;
+ assigned-clock-rates = <19200000>;
+
+ operating-points-v2 = <&mdp_opp_table>;
+ power-domains = <&rpmhpd RPMHPD_MMCX>;
+
+ interrupt-parent = <&mdss>;
+ interrupts = <0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ dpu_intf1_out: endpoint {
+ remote-endpoint = <&dsi0_in>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ dpu_intf2_out: endpoint {
+ remote-endpoint = <&dsi1_in>;
+ };
+ };
+ };
+
+ mdp_opp_table: opp-table {
+ compatible = "operating-points-v2";
+
+ opp-200000000 {
+ opp-hz = /bits/ 64 <200000000>;
+ required-opps = <&rpmhpd_opp_low_svs>;
+ };
+
+ opp-325000000 {
+ opp-hz = /bits/ 64 <325000000>;
+ required-opps = <&rpmhpd_opp_svs>;
+ };
+
+ opp-375000000 {
+ opp-hz = /bits/ 64 <375000000>;
+ required-opps = <&rpmhpd_opp_svs_l1>;
+ };
+
+ opp-514000000 {
+ opp-hz = /bits/ 64 <514000000>;
+ required-opps = <&rpmhpd_opp_nom>;
+ };
+ };
+ };
+
+ displayport-controller@ae90000 {
+ compatible = "qcom,glymur-dp";
+ reg = <0xae90000 0x200>,
+ <0xae90200 0x200>,
+ <0xae90400 0x600>,
+ <0xae91000 0x400>,
+ <0xae91400 0x400>;
+
+ interrupt-parent = <&mdss>;
+ interrupts = <12>;
+
+ clocks = <&dispcc_mdss_ahb_clk>,
+ <&dispcc_dptx0_aux_clk>,
+ <&dispcc_dptx0_link_clk>,
+ <&dispcc_dptx0_link_intf_clk>,
+ <&dispcc_dptx0_pixel0_clk>,
+ <&dispcc_dptx0_pixel1_clk>;
+ clock-names = "core_iface",
+ "core_aux",
+ "ctrl_link",
+ "ctrl_link_iface",
+ "stream_pixel",
+ "stream_1_pixel";
+
+ assigned-clocks = <&dispcc_mdss_dptx0_link_clk_src>,
+ <&dispcc_mdss_dptx0_pixel0_clk_src>,
+ <&dispcc_mdss_dptx0_pixel1_clk_src>;
+ assigned-clock-parents = <&usb_1_ss0_qmpphy QMP_USB43DP_DP_LINK_CLK>,
+ <&usb_1_ss0_qmpphy QMP_USB43DP_DP_VCO_DIV_CLK>,
+ <&usb_1_ss0_qmpphy QMP_USB43DP_DP_VCO_DIV_CLK>;
+
+ operating-points-v2 = <&mdss_dp0_opp_table>;
+
+ power-domains = <&rpmhpd RPMHPD_MMCX>;
+
+ phys = <&usb_1_ss0_qmpphy QMP_USB43DP_DP_PHY>;
+ phy-names = "dp";
+
+ #sound-dai-cells = <0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ mdss_dp0_in: endpoint {
+ remote-endpoint = <&mdss_intf0_out>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ mdss_dp0_out: endpoint {
+ };
+ };
+ };
+
+ mdss_dp0_opp_table: opp-table {
+ compatible = "operating-points-v2";
+
+ opp-160000000 {
+ opp-hz = /bits/ 64 <160000000>;
+ required-opps = <&rpmhpd_opp_low_svs>;
+ };
+
+ opp-270000000 {
+ opp-hz = /bits/ 64 <270000000>;
+ required-opps = <&rpmhpd_opp_svs>;
+ };
+
+ opp-540000000 {
+ opp-hz = /bits/ 64 <540000000>;
+ required-opps = <&rpmhpd_opp_svs_l1>;
+ };
+
+ opp-810000000 {
+ opp-hz = /bits/ 64 <810000000>;
+ required-opps = <&rpmhpd_opp_nom>;
+ };
+ };
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,mdp5.yaml b/Documentation/devicetree/bindings/display/msm/qcom,mdp5.yaml
index a763cf8da122..2735c78b0b67 100644
--- a/Documentation/devicetree/bindings/display/msm/qcom,mdp5.yaml
+++ b/Documentation/devicetree/bindings/display/msm/qcom,mdp5.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/msm/qcom,mdp5.yaml#
@@ -22,8 +22,10 @@ properties:
- items:
- enum:
- qcom,apq8084-mdp5
+ - qcom,msm8226-mdp5
- qcom,msm8916-mdp5
- qcom,msm8917-mdp5
+ - qcom,msm8937-mdp5
- qcom,msm8953-mdp5
- qcom,msm8974-mdp5
- qcom,msm8976-mdp5
@@ -58,7 +60,6 @@ properties:
- const: bus
- const: core
- const: vsync
- - const: lut
- const: tbu
- const: tbu_rt
# MSM8996 has additional iommu clock
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,mdss.yaml
index b0100105e428..db9c43b20e2a 100644
--- a/Documentation/devicetree/bindings/display/msm/qcom,mdss.yaml
+++ b/Documentation/devicetree/bindings/display/msm/qcom,mdss.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/msm/qcom,mdss.yaml#
@@ -11,7 +11,7 @@ maintainers:
- Rob Clark <robdclark@gmail.com>
description:
- This is the bindings documentation for the Mobile Display Subsytem(MDSS) that
+ This is the bindings documentation for the Mobile Display Subsystem(MDSS) that
encapsulates sub-blocks like MDP5, DSI, HDMI, eDP, etc.
properties:
@@ -84,6 +84,18 @@ properties:
items:
- description: MDSS_CORE reset
+ interconnects:
+ minItems: 1
+ items:
+ - description: Interconnect path from mdp0 (or a single mdp) port to the data bus
+ - description: Interconnect path from CPU to the reg bus
+
+ interconnect-names:
+ minItems: 1
+ items:
+ - const: mdp0-mem
+ - const: cpu-cfg
+
required:
- compatible
- reg
@@ -125,7 +137,10 @@ patternProperties:
- qcom,dsi-phy-14nm-660
- qcom,dsi-phy-14nm-8953
- qcom,dsi-phy-20nm
+ - qcom,dsi-phy-28nm-8226
+ - qcom,dsi-phy-28nm-8937
- qcom,dsi-phy-28nm-hpm
+ - qcom,dsi-phy-28nm-hpm-fam-b
- qcom,dsi-phy-28nm-lp
- qcom,hdmi-phy-8084
- qcom,hdmi-phy-8660
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,msm8998-dpu.yaml b/Documentation/devicetree/bindings/display/msm/qcom,msm8998-dpu.yaml
index 8d3cd46260fb..d5a64c8a921f 100644
--- a/Documentation/devicetree/bindings/display/msm/qcom,msm8998-dpu.yaml
+++ b/Documentation/devicetree/bindings/display/msm/qcom,msm8998-dpu.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/msm/qcom,msm8998-dpu.yaml#
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,msm8998-mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,msm8998-mdss.yaml
index 3c2b6ed98a56..2d9edab5a30d 100644
--- a/Documentation/devicetree/bindings/display/msm/qcom,msm8998-mdss.yaml
+++ b/Documentation/devicetree/bindings/display/msm/qcom,msm8998-mdss.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/msm/qcom,msm8998-mdss.yaml#
@@ -38,12 +38,16 @@ properties:
patternProperties:
"^display-controller@[0-9a-f]+$":
type: object
+ additionalProperties: true
+
properties:
compatible:
const: qcom,msm8998-dpu
"^dsi@[0-9a-f]+$":
type: object
+ additionalProperties: true
+
properties:
compatible:
items:
@@ -52,6 +56,8 @@ patternProperties:
"^phy@[0-9a-f]+$":
type: object
+ additionalProperties: true
+
properties:
compatible:
const: qcom,dsi-phy-10nm-8998
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,qcm2290-dpu.yaml b/Documentation/devicetree/bindings/display/msm/qcom,qcm2290-dpu.yaml
index 414f4e7ebdf1..be6cd8adb3b6 100644
--- a/Documentation/devicetree/bindings/display/msm/qcom,qcm2290-dpu.yaml
+++ b/Documentation/devicetree/bindings/display/msm/qcom,qcm2290-dpu.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/msm/qcom,qcm2290-dpu.yaml#
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,qcm2290-mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,qcm2290-mdss.yaml
index 2995b84b2cd4..f0cdb5422688 100644
--- a/Documentation/devicetree/bindings/display/msm/qcom,qcm2290-mdss.yaml
+++ b/Documentation/devicetree/bindings/display/msm/qcom,qcm2290-mdss.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/msm/qcom,qcm2290-mdss.yaml#
@@ -36,26 +36,38 @@ properties:
maxItems: 2
interconnects:
- maxItems: 1
+ items:
+ - description: Interconnect path from mdp0 port to the data bus
+ - description: Interconnect path from CPU to the reg bus
interconnect-names:
- maxItems: 1
+ items:
+ - const: mdp0-mem
+ - const: cpu-cfg
patternProperties:
"^display-controller@[0-9a-f]+$":
type: object
+ additionalProperties: true
+
properties:
compatible:
const: qcom,qcm2290-dpu
"^dsi@[0-9a-f]+$":
type: object
+ additionalProperties: true
+
properties:
compatible:
- const: qcom,dsi-ctrl-6g-qcm2290
+ items:
+ - const: qcom,qcm2290-dsi-ctrl
+ - const: qcom,mdss-dsi-ctrl
"^phy@[0-9a-f]+$":
type: object
+ additionalProperties: true
+
properties:
compatible:
const: qcom,dsi-phy-14nm-2290
@@ -90,8 +102,10 @@ examples:
interrupt-controller;
#interrupt-cells = <1>;
- interconnects = <&mmrt_virt MASTER_MDP0 &bimc SLAVE_EBI1>;
- interconnect-names = "mdp0-mem";
+ interconnects = <&mmrt_virt MASTER_MDP0 &bimc SLAVE_EBI1>,
+ <&bimc MASTER_APPSS_PROC &config_noc SLAVE_DISPLAY_CFG>;
+ interconnect-names = "mdp0-mem",
+ "cpu-cfg";
iommus = <&apps_smmu 0x420 0x2>,
<&apps_smmu 0x421 0x0>;
@@ -130,7 +144,8 @@ examples:
};
dsi@5e94000 {
- compatible = "qcom,dsi-ctrl-6g-qcm2290";
+ compatible = "qcom,qcm2290-dsi-ctrl",
+ "qcom,mdss-dsi-ctrl";
reg = <0x05e94000 0x400>;
reg-names = "dsi_ctrl";
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,qcs8300-mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,qcs8300-mdss.yaml
new file mode 100644
index 000000000000..e96baaae9ba9
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/msm/qcom,qcs8300-mdss.yaml
@@ -0,0 +1,286 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/msm/qcom,qcs8300-mdss.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Technologies, Inc. QCS8300 Display MDSS
+
+maintainers:
+ - Yongxing Mou <yongxing.mou@oss.qualcomm.com>
+
+description:
+ QCS8300 MSM Mobile Display Subsystem(MDSS), which encapsulates sub-blocks like
+ DPU display controller, DP interfaces and EDP etc.
+
+$ref: /schemas/display/msm/mdss-common.yaml#
+
+properties:
+ compatible:
+ const: qcom,qcs8300-mdss
+
+ clocks:
+ items:
+ - description: Display AHB
+ - description: Display hf AXI
+ - description: Display core
+
+ iommus:
+ maxItems: 1
+
+ interconnects:
+ maxItems: 3
+
+ interconnect-names:
+ maxItems: 3
+
+patternProperties:
+ "^display-controller@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ contains:
+ const: qcom,qcs8300-dpu
+
+ "^displayport-controller@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ contains:
+ const: qcom,qcs8300-dp
+
+ "^phy@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+ properties:
+ compatible:
+ contains:
+ const: qcom,qcs8300-edp-phy
+
+required:
+ - compatible
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interconnect/qcom,icc.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/qcom,qcs8300-gcc.h>
+ #include <dt-bindings/clock/qcom,sa8775p-dispcc.h>
+ #include <dt-bindings/interconnect/qcom,qcs8300-rpmh.h>
+ #include <dt-bindings/power/qcom,rpmhpd.h>
+ #include <dt-bindings/power/qcom-rpmpd.h>
+
+ mdss: display-subsystem@ae00000 {
+ compatible = "qcom,qcs8300-mdss";
+ reg = <0x0ae00000 0x1000>;
+ reg-names = "mdss";
+
+ interconnects = <&mmss_noc MASTER_MDP0 QCOM_ICC_TAG_ACTIVE_ONLY
+ &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ACTIVE_ONLY>,
+ <&mmss_noc MASTER_MDP1 QCOM_ICC_TAG_ACTIVE_ONLY
+ &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ACTIVE_ONLY>,
+ <&gem_noc MASTER_APPSS_PROC QCOM_ICC_TAG_ACTIVE_ONLY
+ &config_noc SLAVE_DISPLAY_CFG QCOM_ICC_TAG_ACTIVE_ONLY>;
+ interconnect-names = "mdp0-mem",
+ "mdp1-mem",
+ "cpu-cfg";
+
+ resets = <&dispcc_core_bcr>;
+ power-domains = <&dispcc_gdsc>;
+
+ clocks = <&dispcc_ahb_clk>,
+ <&gcc GCC_DISP_HF_AXI_CLK>,
+ <&dispcc_mdp_clk>;
+
+ interrupts = <GIC_SPI 92 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-controller;
+ #interrupt-cells = <1>;
+
+ iommus = <&apps_smmu 0x1000 0x402>;
+
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ display-controller@ae01000 {
+ compatible = "qcom,qcs8300-dpu", "qcom,sa8775p-dpu";
+ reg = <0x0ae01000 0x8f000>,
+ <0x0aeb0000 0x2008>;
+ reg-names = "mdp", "vbif";
+
+ clocks = <&gcc GCC_DISP_HF_AXI_CLK>,
+ <&dispcc0 MDSS_DISP_CC_MDSS_AHB_CLK>,
+ <&dispcc0 MDSS_DISP_CC_MDSS_MDP_LUT_CLK>,
+ <&dispcc0 MDSS_DISP_CC_MDSS_MDP_CLK>,
+ <&dispcc0 MDSS_DISP_CC_MDSS_VSYNC_CLK>;
+ clock-names = "nrt_bus",
+ "iface",
+ "lut",
+ "core",
+ "vsync";
+
+ assigned-clocks = <&dispcc0 MDSS_DISP_CC_MDSS_VSYNC_CLK>;
+ assigned-clock-rates = <19200000>;
+ operating-points-v2 = <&mdp_opp_table>;
+ power-domains = <&rpmhpd RPMHPD_MMCX>;
+
+ interrupt-parent = <&mdss>;
+ interrupts = <0>;
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ port@0 {
+ reg = <0>;
+
+ dpu_intf0_out: endpoint {
+ remote-endpoint = <&mdss_dp0_in>;
+ };
+ };
+ };
+
+ mdp_opp_table: opp-table {
+ compatible = "operating-points-v2";
+
+ opp-375000000 {
+ opp-hz = /bits/ 64 <375000000>;
+ required-opps = <&rpmhpd_opp_svs_l1>;
+ };
+
+ opp-500000000 {
+ opp-hz = /bits/ 64 <500000000>;
+ required-opps = <&rpmhpd_opp_nom>;
+ };
+
+ opp-575000000 {
+ opp-hz = /bits/ 64 <575000000>;
+ required-opps = <&rpmhpd_opp_turbo>;
+ };
+
+ opp-650000000 {
+ opp-hz = /bits/ 64 <650000000>;
+ required-opps = <&rpmhpd_opp_turbo_l1>;
+ };
+ };
+ };
+
+ mdss_dp0_phy: phy@aec2a00 {
+ compatible = "qcom,qcs8300-edp-phy", "qcom,sa8775p-edp-phy";
+
+ reg = <0x0aec2a00 0x200>,
+ <0x0aec2200 0xd0>,
+ <0x0aec2600 0xd0>,
+ <0x0aec2000 0x1c8>;
+
+ clocks = <&dispcc MDSS_DISP_CC_MDSS_DPTX0_AUX_CLK>,
+ <&dispcc MDSS_DISP_CC_MDSS_AHB_CLK>;
+ clock-names = "aux",
+ "cfg_ahb";
+
+ #clock-cells = <1>;
+ #phy-cells = <0>;
+
+ vdda-phy-supply = <&vreg_l1c>;
+ vdda-pll-supply = <&vreg_l4a>;
+ };
+
+ displayport-controller@af54000 {
+ compatible = "qcom,qcs8300-dp", "qcom,sa8775p-dp";
+
+ pinctrl-0 = <&dp_hot_plug_det>;
+ pinctrl-names = "default";
+
+ reg = <0xaf54000 0x104>,
+ <0xaf54200 0x0c0>,
+ <0xaf55000 0x770>,
+ <0xaf56000 0x09c>,
+ <0xaf57000 0x09c>,
+ <0xaf58000 0x09c>,
+ <0xaf59000 0x09c>,
+ <0xaf5a000 0x23c>,
+ <0xaf5b000 0x23c>;
+
+ interrupt-parent = <&mdss>;
+ interrupts = <12>;
+ clocks = <&dispcc0 MDSS_DISP_CC_MDSS_AHB_CLK>,
+ <&dispcc0 MDSS_DISP_CC_MDSS_DPTX0_AUX_CLK>,
+ <&dispcc0 MDSS_DISP_CC_MDSS_DPTX0_LINK_CLK>,
+ <&dispcc0 MDSS_DISP_CC_MDSS_DPTX0_LINK_INTF_CLK>,
+ <&dispcc0 MDSS_DISP_CC_MDSS_DPTX0_PIXEL0_CLK>,
+ <&dispcc0 MDSS_DISP_CC_MDSS_DPTX0_PIXEL1_CLK>,
+ <&dispcc0 MDSS_DISP_CC_MDSS_DPTX0_PIXEL2_CLK>,
+ <&dispcc0 MDSS_DISP_CC_MDSS_DPTX0_PIXEL3_CLK>;
+ clock-names = "core_iface",
+ "core_aux",
+ "ctrl_link",
+ "ctrl_link_iface",
+ "stream_pixel",
+ "stream_1_pixel",
+ "stream_2_pixel",
+ "stream_3_pixel";
+ assigned-clocks = <&dispcc0 MDSS_DISP_CC_MDSS_DPTX0_LINK_CLK_SRC>,
+ <&dispcc0 MDSS_DISP_CC_MDSS_DPTX0_PIXEL0_CLK_SRC>,
+ <&dispcc0 MDSS_DISP_CC_MDSS_DPTX0_PIXEL1_CLK_SRC>,
+ <&dispcc0 MDSS_DISP_CC_MDSS_DPTX0_PIXEL2_CLK_SRC>,
+ <&dispcc0 MDSS_DISP_CC_MDSS_DPTX0_PIXEL3_CLK_SRC>;
+ assigned-clock-parents = <&mdss_dp0_phy 0>,
+ <&mdss_dp0_phy 1>,
+ <&mdss_dp0_phy 1>,
+ <&mdss_dp0_phy 1>;
+ phys = <&mdss_dp0_phy>;
+ phy-names = "dp";
+ operating-points-v2 = <&dp_opp_table>;
+ power-domains = <&rpmhpd RPMHPD_MMCX>;
+
+ #sound-dai-cells = <0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ mdss_dp0_in: endpoint {
+ remote-endpoint = <&dpu_intf0_out>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ mdss_dp_out: endpoint { };
+ };
+ };
+
+ dp_opp_table: opp-table {
+ compatible = "operating-points-v2";
+
+ opp-160000000 {
+ opp-hz = /bits/ 64 <160000000>;
+ required-opps = <&rpmhpd_opp_low_svs>;
+ };
+
+ opp-270000000 {
+ opp-hz = /bits/ 64 <270000000>;
+ required-opps = <&rpmhpd_opp_svs>;
+ };
+
+ opp-540000000 {
+ opp-hz = /bits/ 64 <540000000>;
+ required-opps = <&rpmhpd_opp_svs_l1>;
+ };
+
+ opp-810000000 {
+ opp-hz = /bits/ 64 <810000000>;
+ required-opps = <&rpmhpd_opp_nom>;
+ };
+ };
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sa8775p-mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sa8775p-mdss.yaml
new file mode 100644
index 000000000000..e2730a2f25cf
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/msm/qcom,sa8775p-mdss.yaml
@@ -0,0 +1,464 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/msm/qcom,sa8775p-mdss.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Technologies, Inc. SA87755P Display MDSS
+
+maintainers:
+ - Mahadevan <quic_mahap@quicinc.com>
+
+description:
+ SA8775P MSM Mobile Display Subsystem(MDSS), which encapsulates sub-blocks like
+ DPU display controller, DP interfaces and EDP etc.
+
+$ref: /schemas/display/msm/mdss-common.yaml#
+
+properties:
+ compatible:
+ const: qcom,sa8775p-mdss
+
+ clocks:
+ items:
+ - description: Display AHB
+ - description: Display hf AXI
+ - description: Display core
+
+ iommus:
+ maxItems: 1
+
+ interconnects:
+ maxItems: 3
+
+ interconnect-names:
+ maxItems: 3
+
+patternProperties:
+ "^display-controller@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ const: qcom,sa8775p-dpu
+
+ "^displayport-controller@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ items:
+ - const: qcom,sa8775p-dp
+
+ "^dsi@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+ properties:
+ compatible:
+ contains:
+ const: qcom,sa8775p-dsi-ctrl
+
+ "^phy@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,sa8775p-dsi-phy-5nm
+ - qcom,sa8775p-edp-phy
+
+required:
+ - compatible
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interconnect/qcom,icc.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/qcom,sa8775p-dispcc.h>
+ #include <dt-bindings/clock/qcom,sa8775p-gcc.h>
+ #include <dt-bindings/interconnect/qcom,sa8775p-rpmh.h>
+ #include <dt-bindings/power/qcom,rpmhpd.h>
+ #include <dt-bindings/power/qcom-rpmpd.h>
+
+ display-subsystem@ae00000 {
+ compatible = "qcom,sa8775p-mdss";
+ reg = <0x0ae00000 0x1000>;
+ reg-names = "mdss";
+
+ interconnects = <&mmss_noc MASTER_MDP0 &mc_virt SLAVE_EBI1>,
+ <&mmss_noc MASTER_MDP1 &mc_virt SLAVE_EBI1>,
+ <&gem_noc MASTER_APPSS_PROC &config_noc SLAVE_DISPLAY_CFG>;
+ interconnect-names = "mdp0-mem",
+ "mdp1-mem",
+ "cpu-cfg";
+
+ resets = <&dispcc_core_bcr>;
+ power-domains = <&dispcc_gdsc>;
+
+ clocks = <&dispcc_ahb_clk>,
+ <&gcc GCC_DISP_HF_AXI_CLK>,
+ <&dispcc_mdp_clk>;
+
+ interrupts = <GIC_SPI 92 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-controller;
+ #interrupt-cells = <1>;
+
+ iommus = <&apps_smmu 0x1000 0x402>;
+
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ display-controller@ae01000 {
+ compatible = "qcom,sa8775p-dpu";
+ reg = <0x0ae01000 0x8f000>,
+ <0x0aeb0000 0x2008>;
+ reg-names = "mdp", "vbif";
+
+ clocks = <&gcc GCC_DISP_HF_AXI_CLK>,
+ <&dispcc_ahb_clk>,
+ <&dispcc_mdp_lut_clk>,
+ <&dispcc_mdp_clk>,
+ <&dispcc_mdp_vsync_clk>;
+ clock-names = "nrt_bus",
+ "iface",
+ "lut",
+ "core",
+ "vsync";
+
+ assigned-clocks = <&dispcc_mdp_vsync_clk>;
+ assigned-clock-rates = <19200000>;
+
+ operating-points-v2 = <&mdss0_mdp_opp_table>;
+ power-domains = <&rpmhpd RPMHPD_MMCX>;
+
+ interrupt-parent = <&mdss0>;
+ interrupts = <0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ dpu_intf0_out: endpoint {
+ remote-endpoint = <&mdss0_dp0_in>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ dpu_intf1_out: endpoint {
+ remote-endpoint = <&mdss0_dsi0_in>;
+ };
+ };
+
+ port@2 {
+ reg = <2>;
+ dpu_intf2_out: endpoint {
+ remote-endpoint = <&mdss0_dsi1_in>;
+ };
+ };
+ };
+
+ mdss0_mdp_opp_table: opp-table {
+ compatible = "operating-points-v2";
+
+ opp-375000000 {
+ opp-hz = /bits/ 64 <375000000>;
+ required-opps = <&rpmhpd_opp_svs_l1>;
+ };
+
+ opp-500000000 {
+ opp-hz = /bits/ 64 <500000000>;
+ required-opps = <&rpmhpd_opp_nom>;
+ };
+
+ opp-575000000 {
+ opp-hz = /bits/ 64 <575000000>;
+ required-opps = <&rpmhpd_opp_turbo>;
+ };
+
+ opp-650000000 {
+ opp-hz = /bits/ 64 <650000000>;
+ required-opps = <&rpmhpd_opp_turbo_l1>;
+ };
+ };
+ };
+
+ mdss0_dp0_phy: phy@aec2a00 {
+ compatible = "qcom,sa8775p-edp-phy";
+
+ reg = <0x0aec2a00 0x200>,
+ <0x0aec2200 0xd0>,
+ <0x0aec2600 0xd0>,
+ <0x0aec2000 0x1c8>;
+
+ clocks = <&dispcc0 MDSS_DISP_CC_MDSS_DPTX0_AUX_CLK>,
+ <&dispcc0 MDSS_DISP_CC_MDSS_AHB_CLK>;
+ clock-names = "aux",
+ "cfg_ahb";
+
+ #clock-cells = <1>;
+ #phy-cells = <0>;
+
+ vdda-phy-supply = <&vreg_l1c>;
+ vdda-pll-supply = <&vreg_l4a>;
+ };
+
+ dsi@ae94000 {
+ compatible = "qcom,sa8775p-dsi-ctrl", "qcom,mdss-dsi-ctrl";
+ reg = <0x0ae94000 0x400>;
+ reg-names = "dsi_ctrl";
+
+ interrupt-parent = <&mdss>;
+ interrupts = <4>;
+
+ clocks = <&dispc_byte_clk>,
+ <&dispcc_intf_clk>,
+ <&dispcc_pclk>,
+ <&dispcc_esc_clk>,
+ <&dispcc_ahb_clk>,
+ <&gcc_bus_clk>;
+ clock-names = "byte",
+ "byte_intf",
+ "pixel",
+ "core",
+ "iface",
+ "bus";
+ assigned-clocks = <&dispcc_byte_clk>,
+ <&dispcc_pclk>;
+ assigned-clock-parents = <&mdss0_dsi0_phy 0>, <&mdss0_dsi0_phy 1>;
+ phys = <&mdss0_dsi0_phy>;
+
+ operating-points-v2 = <&dsi0_opp_table>;
+ power-domains = <&rpmhpd SA8775P_MMCX>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ mdss0_dsi0_in: endpoint {
+ remote-endpoint = <&dpu_intf1_out>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ mdss0_dsi0_out: endpoint { };
+ };
+ };
+
+ dsi0_opp_table: opp-table {
+ compatible = "operating-points-v2";
+
+ opp-358000000 {
+ opp-hz = /bits/ 64 <358000000>;
+ required-opps = <&rpmhpd_opp_svs_l1>;
+ };
+ };
+ };
+
+ mdss0_dsi0_phy: phy@ae94400 {
+ compatible = "qcom,sa8775p-dsi-phy-5nm";
+ reg = <0x0ae94400 0x200>,
+ <0x0ae94600 0x280>,
+ <0x0ae94900 0x27c>;
+ reg-names = "dsi_phy",
+ "dsi_phy_lane",
+ "dsi_pll";
+
+ #clock-cells = <1>;
+ #phy-cells = <0>;
+
+ clocks = <&dispcc_iface_clk>,
+ <&rpmhcc_ref_clk>;
+ clock-names = "iface", "ref";
+
+ vdds-supply = <&vreg_dsi_supply>;
+ };
+
+ dsi@ae96000 {
+ compatible = "qcom,sa8775p-dsi-ctrl", "qcom,mdss-dsi-ctrl";
+ reg = <0x0ae96000 0x400>;
+ reg-names = "dsi_ctrl";
+
+ interrupt-parent = <&mdss>;
+ interrupts = <4>;
+
+ clocks = <&dispc_byte_clk>,
+ <&dispcc_intf_clk>,
+ <&dispcc_pclk>,
+ <&dispcc_esc_clk>,
+ <&dispcc_ahb_clk>,
+ <&gcc_bus_clk>;
+ clock-names = "byte",
+ "byte_intf",
+ "pixel",
+ "core",
+ "iface",
+ "bus";
+ assigned-clocks = <&dispcc_byte_clk>,
+ <&dispcc_pclk>;
+ assigned-clock-parents = <&mdss0_dsi1_phy 0>, <&mdss0_dsi1_phy 1>;
+ phys = <&mdss0_dsi1_phy>;
+
+ operating-points-v2 = <&dsi1_opp_table>;
+ power-domains = <&rpmhpd SA8775P_MMCX>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ mdss0_dsi1_in: endpoint {
+ remote-endpoint = <&dpu_intf2_out>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ mdss0_dsi1_out: endpoint { };
+ };
+ };
+
+ dsi1_opp_table: opp-table {
+ compatible = "operating-points-v2";
+
+ opp-358000000 {
+ opp-hz = /bits/ 64 <358000000>;
+ required-opps = <&rpmhpd_opp_svs_l1>;
+ };
+ };
+ };
+
+ mdss0_dsi1_phy: phy@ae96400 {
+ compatible = "qcom,sa8775p-dsi-phy-5nm";
+ reg = <0x0ae96400 0x200>,
+ <0x0ae96600 0x280>,
+ <0x0ae96900 0x27c>;
+ reg-names = "dsi_phy",
+ "dsi_phy_lane",
+ "dsi_pll";
+
+ #clock-cells = <1>;
+ #phy-cells = <0>;
+
+ clocks = <&dispcc_iface_clk>,
+ <&rpmhcc_ref_clk>;
+ clock-names = "iface", "ref";
+
+ vdds-supply = <&vreg_dsi_supply>;
+ };
+
+ displayport-controller@af54000 {
+ compatible = "qcom,sa8775p-dp";
+
+ pinctrl-0 = <&dp_hot_plug_det>;
+ pinctrl-names = "default";
+
+ reg = <0xaf54000 0x104>,
+ <0xaf54200 0x0c0>,
+ <0xaf55000 0x770>,
+ <0xaf56000 0x09c>,
+ <0xaf57000 0x09c>,
+ <0xaf58000 0x09c>,
+ <0xaf59000 0x09c>,
+ <0xaf5a000 0x23c>,
+ <0xaf5b000 0x23c>;
+
+ interrupt-parent = <&mdss0>;
+ interrupts = <12>;
+
+ clocks = <&dispcc_mdss_ahb_clk>,
+ <&dispcc_dptx0_aux_clk>,
+ <&dispcc_dptx0_link_clk>,
+ <&dispcc_dptx0_link_intf_clk>,
+ <&dispcc_dptx0_pixel0_clk>,
+ <&dispcc_dptx0_pixel1_clk>,
+ <&dispcc_dptx0_pixel2_clk>,
+ <&dispcc_dptx0_pixel3_clk>;
+ clock-names = "core_iface",
+ "core_aux",
+ "ctrl_link",
+ "ctrl_link_iface",
+ "stream_pixel",
+ "stream_1_pixel",
+ "stream_2_pixel",
+ "stream_3_pixel";
+
+ assigned-clocks = <&dispcc_mdss_dptx0_link_clk_src>,
+ <&dispcc_mdss_dptx0_pixel0_clk_src>,
+ <&dispcc_mdss_dptx0_pixel1_clk_src>,
+ <&dispcc_mdss_dptx0_pixel2_clk_src>,
+ <&dispcc_mdss_dptx0_pixel3_clk_src>;
+ assigned-clock-parents = <&mdss0_dp0_phy 0>,
+ <&mdss0_dp0_phy 1>,
+ <&mdss0_dp0_phy 1>,
+ <&mdss0_dp0_phy 1>;
+
+ phys = <&mdss0_dp0_phy>;
+ phy-names = "dp";
+
+ operating-points-v2 = <&dp_opp_table>;
+ power-domains = <&rpmhpd SA8775P_MMCX>;
+
+ #sound-dai-cells = <0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ mdss0_dp0_in: endpoint {
+ remote-endpoint = <&dpu_intf0_out>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ mdss0_dp_out: endpoint { };
+ };
+ };
+
+ dp_opp_table: opp-table {
+ compatible = "operating-points-v2";
+
+ opp-160000000 {
+ opp-hz = /bits/ 64 <160000000>;
+ required-opps = <&rpmhpd_opp_low_svs>;
+ };
+
+ opp-270000000 {
+ opp-hz = /bits/ 64 <270000000>;
+ required-opps = <&rpmhpd_opp_svs>;
+ };
+
+ opp-540000000 {
+ opp-hz = /bits/ 64 <540000000>;
+ required-opps = <&rpmhpd_opp_svs_l1>;
+ };
+
+ opp-810000000 {
+ opp-hz = /bits/ 64 <810000000>;
+ required-opps = <&rpmhpd_opp_nom>;
+ };
+ };
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sar2130p-mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sar2130p-mdss.yaml
new file mode 100644
index 000000000000..44c1bb9e4109
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/msm/qcom,sar2130p-mdss.yaml
@@ -0,0 +1,443 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/msm/qcom,sar2130p-mdss.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm SAR2130P Display MDSS
+
+maintainers:
+ - Dmitry Baryshkov <lumag@kernel.org>
+
+description:
+ SAR2310P MSM Mobile Display Subsystem(MDSS), which encapsulates sub-blocks like
+ DPU display controller, DSI and DP interfaces etc.
+
+$ref: /schemas/display/msm/mdss-common.yaml#
+
+properties:
+ compatible:
+ const: qcom,sar2130p-mdss
+
+ clocks:
+ items:
+ - description: Display MDSS AHB
+ - description: Display AHB
+ - description: Display hf AXI
+ - description: Display core
+
+ iommus:
+ maxItems: 1
+
+ interconnects:
+ items:
+ - description: Interconnect path from mdp0 port to the data bus
+ - description: Interconnect path from CPU to the reg bus
+
+ interconnect-names:
+ items:
+ - const: mdp0-mem
+ - const: cpu-cfg
+
+patternProperties:
+ "^display-controller@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+ properties:
+ compatible:
+ const: qcom,sar2130p-dpu
+
+ "^displayport-controller@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+ properties:
+ compatible:
+ contains:
+ const: qcom,sar2130p-dp
+
+ "^dsi@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+ properties:
+ compatible:
+ contains:
+ const: qcom,sar2130p-dsi-ctrl
+
+ "^phy@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+ properties:
+ compatible:
+ const: qcom,sar2130p-dsi-phy-5nm
+
+required:
+ - compatible
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/power/qcom,rpmhpd.h>
+ #include <dt-bindings/phy/phy-qcom-qmp.h>
+
+ display-subsystem@ae00000 {
+ compatible = "qcom,sar2130p-mdss";
+ reg = <0x0ae00000 0x1000>;
+ reg-names = "mdss";
+
+ interconnects = <&mmss_noc_master_mdp &mc_virt_slave_ebi1>,
+ <&gem_noc_master_appss_proc &config_noc_slave_display_cfg>;
+ interconnect-names = "mdp0-mem", "cpu-cfg";
+
+ resets = <&dispcc_disp_cc_mdss_core_bcr>;
+
+ power-domains = <&dispcc_mdss_gdsc>;
+
+ clocks = <&dispcc_disp_cc_mdss_ahb_clk>,
+ <&gcc_gcc_disp_ahb_clk>,
+ <&gcc_gcc_disp_hf_axi_clk>,
+ <&dispcc_disp_cc_mdss_mdp_clk>;
+ clock-names = "iface", "bus", "nrt_bus", "core";
+
+ interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-controller;
+ #interrupt-cells = <1>;
+
+ iommus = <&apps_smmu 0x1c00 0x2>;
+
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ display-controller@ae01000 {
+ compatible = "qcom,sar2130p-dpu";
+ reg = <0x0ae01000 0x8f000>,
+ <0x0aeb0000 0x2008>;
+ reg-names = "mdp", "vbif";
+
+ clocks = <&gcc_gcc_disp_ahb_clk>,
+ <&gcc_gcc_disp_hf_axi_clk>,
+ <&dispcc_disp_cc_mdss_ahb_clk>,
+ <&dispcc_disp_cc_mdss_mdp_lut_clk>,
+ <&dispcc_disp_cc_mdss_mdp_clk>,
+ <&dispcc_disp_cc_mdss_vsync_clk>;
+ clock-names = "bus",
+ "nrt_bus",
+ "iface",
+ "lut",
+ "core",
+ "vsync";
+
+ assigned-clocks = <&dispcc_disp_cc_mdss_vsync_clk>;
+ assigned-clock-rates = <19200000>;
+
+ operating-points-v2 = <&mdp_opp_table>;
+ power-domains = <&rpmhpd RPMHPD_MMCX>;
+
+ interrupt-parent = <&mdss>;
+ interrupts = <0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ dpu_intf0_out: endpoint {
+ remote-endpoint = <&mdss_dp0_in>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ dpu_intf1_out: endpoint {
+ remote-endpoint = <&mdss_dsi0_in>;
+ };
+ };
+
+ port@2 {
+ reg = <2>;
+
+ dpu_intf2_out: endpoint {
+ remote-endpoint = <&mdss_dsi1_in>;
+ };
+ };
+ };
+
+ mdp_opp_table: opp-table {
+ compatible = "operating-points-v2";
+
+ opp-200000000 {
+ opp-hz = /bits/ 64 <200000000>;
+ required-opps = <&rpmhpd_opp_low_svs>;
+ };
+
+ opp-325000000 {
+ opp-hz = /bits/ 64 <325000000>;
+ required-opps = <&rpmhpd_opp_svs>;
+ };
+
+ opp-375000000 {
+ opp-hz = /bits/ 64 <375000000>;
+ required-opps = <&rpmhpd_opp_svs_l1>;
+ };
+
+ opp-514000000 {
+ opp-hz = /bits/ 64 <514000000>;
+ required-opps = <&rpmhpd_opp_nom>;
+ };
+ };
+ };
+
+ displayport-controller@ae90000 {
+ compatible = "qcom,sar2130p-dp",
+ "qcom,sm8350-dp";
+ reg = <0xae90000 0x200>,
+ <0xae90200 0x200>,
+ <0xae90400 0xc00>,
+ <0xae91000 0x400>,
+ <0xae91400 0x400>;
+
+ interrupt-parent = <&mdss>;
+ interrupts = <12>;
+ clocks = <&dispcc_disp_cc_mdss_ahb_clk>,
+ <&dispcc_disp_cc_mdss_dptx0_aux_clk>,
+ <&dispcc_disp_cc_mdss_dptx0_link_clk>,
+ <&dispcc_disp_cc_mdss_dptx0_link_intf_clk>,
+ <&dispcc_disp_cc_mdss_dptx0_pixel0_clk>,
+ <&dispcc_disp_cc_mdss_dptx0_pixel1_clk>;
+ clock-names = "core_iface",
+ "core_aux",
+ "ctrl_link",
+ "ctrl_link_iface",
+ "stream_pixel",
+ "stream_1_pixel";
+
+ assigned-clocks = <&dispcc_disp_cc_mdss_dptx0_link_clk_src>,
+ <&dispcc_disp_cc_mdss_dptx0_pixel0_clk_src>,
+ <&dispcc_disp_cc_mdss_dptx0_pixel1_clk_src>;
+ assigned-clock-parents = <&usb_dp_qmpphy_QMP_USB43DP_DP_LINK_CLK>,
+ <&usb_dp_qmpphy_QMP_USB43DP_DP_VCO_DIV_CLK>,
+ <&usb_dp_qmpphy_QMP_USB43DP_DP_VCO_DIV_CLK>;
+
+ phys = <&usb_dp_qmpphy QMP_USB43DP_DP_PHY>;
+ phy-names = "dp";
+
+ #sound-dai-cells = <0>;
+
+ operating-points-v2 = <&dp_opp_table>;
+ power-domains = <&rpmhpd RPMHPD_MMCX>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ mdss_dp0_in: endpoint {
+ remote-endpoint = <&dpu_intf0_out>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ mdss_dp0_out: endpoint {
+ remote-endpoint = <&usb_dp_qmpphy_dp_in>;
+ };
+ };
+ };
+
+ dp_opp_table: opp-table {
+ compatible = "operating-points-v2";
+
+ opp-162000000 {
+ opp-hz = /bits/ 64 <162000000>;
+ required-opps = <&rpmhpd_opp_low_svs_d1>;
+ };
+
+ opp-270000000 {
+ opp-hz = /bits/ 64 <270000000>;
+ required-opps = <&rpmhpd_opp_low_svs>;
+ };
+
+ opp-540000000 {
+ opp-hz = /bits/ 64 <540000000>;
+ required-opps = <&rpmhpd_opp_svs_l1>;
+ };
+
+ opp-810000000 {
+ opp-hz = /bits/ 64 <810000000>;
+ required-opps = <&rpmhpd_opp_nom>;
+ };
+ };
+ };
+
+ dsi@ae94000 {
+ compatible = "qcom,sar2130p-dsi-ctrl",
+ "qcom,mdss-dsi-ctrl";
+ reg = <0x0ae94000 0x400>;
+ reg-names = "dsi_ctrl";
+
+ interrupt-parent = <&mdss>;
+ interrupts = <4>;
+
+ clocks = <&dispcc_disp_cc_mdss_byte0_clk>,
+ <&dispcc_disp_cc_mdss_byte0_intf_clk>,
+ <&dispcc_disp_cc_mdss_pclk0_clk>,
+ <&dispcc_disp_cc_mdss_esc0_clk>,
+ <&dispcc_disp_cc_mdss_ahb_clk>,
+ <&gcc_gcc_disp_hf_axi_clk>;
+ clock-names = "byte",
+ "byte_intf",
+ "pixel",
+ "core",
+ "iface",
+ "bus";
+
+ assigned-clocks = <&dispcc_disp_cc_mdss_byte0_clk_src>,
+ <&dispcc_disp_cc_mdss_pclk0_clk_src>;
+ assigned-clock-parents = <&mdss_dsi0_phy 0>, <&mdss_dsi0_phy 1>;
+
+ operating-points-v2 = <&dsi_opp_table>;
+ power-domains = <&rpmhpd RPMHPD_MMCX>;
+
+ phys = <&mdss_dsi0_phy>;
+ phy-names = "dsi";
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ mdss_dsi0_in: endpoint {
+ remote-endpoint = <&dpu_intf1_out>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ mdss_dsi0_out: endpoint {
+ };
+ };
+ };
+
+ dsi_opp_table: opp-table {
+ compatible = "operating-points-v2";
+
+ opp-187500000 {
+ opp-hz = /bits/ 64 <187500000>;
+ required-opps = <&rpmhpd_opp_low_svs>;
+ };
+
+ opp-300000000 {
+ opp-hz = /bits/ 64 <300000000>;
+ required-opps = <&rpmhpd_opp_svs>;
+ };
+
+ opp-358000000 {
+ opp-hz = /bits/ 64 <358000000>;
+ required-opps = <&rpmhpd_opp_svs_l1>;
+ };
+ };
+ };
+
+ mdss_dsi0_phy: phy@ae94400 {
+ compatible = "qcom,sar2130p-dsi-phy-5nm";
+ reg = <0x0ae95000 0x200>,
+ <0x0ae95200 0x280>,
+ <0x0ae95500 0x400>;
+ reg-names = "dsi_phy",
+ "dsi_phy_lane",
+ "dsi_pll";
+
+ #clock-cells = <1>;
+ #phy-cells = <0>;
+
+ clocks = <&dispcc_disp_cc_mdss_ahb_clk>,
+ <&rpmhcc_rpmh_cxo_clk>;
+ clock-names = "iface", "ref";
+ };
+
+ dsi@ae96000 {
+ compatible = "qcom,sar2130p-dsi-ctrl",
+ "qcom,mdss-dsi-ctrl";
+ reg = <0x0ae96000 0x400>;
+ reg-names = "dsi_ctrl";
+
+ interrupt-parent = <&mdss>;
+ interrupts = <5>;
+
+ clocks = <&dispcc_disp_cc_mdss_byte1_clk>,
+ <&dispcc_disp_cc_mdss_byte1_intf_clk>,
+ <&dispcc_disp_cc_mdss_pclk1_clk>,
+ <&dispcc_disp_cc_mdss_esc1_clk>,
+ <&dispcc_disp_cc_mdss_ahb_clk>,
+ <&gcc_gcc_disp_hf_axi_clk>;
+ clock-names = "byte",
+ "byte_intf",
+ "pixel",
+ "core",
+ "iface",
+ "bus";
+
+ assigned-clocks = <&dispcc_disp_cc_mdss_byte1_clk_src>,
+ <&dispcc_disp_cc_mdss_pclk1_clk_src>;
+ assigned-clock-parents = <&mdss_dsi1_phy 0>, <&mdss_dsi1_phy 1>;
+
+ operating-points-v2 = <&dsi_opp_table>;
+ power-domains = <&rpmhpd RPMHPD_MMCX>;
+
+ phys = <&mdss_dsi1_phy>;
+ phy-names = "dsi";
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ mdss_dsi1_in: endpoint {
+ remote-endpoint = <&dpu_intf2_out>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ mdss_dsi1_out: endpoint {
+ };
+ };
+ };
+ };
+
+ mdss_dsi1_phy: phy@ae97000 {
+ compatible = "qcom,sar2130p-dsi-phy-5nm";
+ reg = <0x0ae97000 0x200>,
+ <0x0ae97200 0x280>,
+ <0x0ae97500 0x400>;
+ reg-names = "dsi_phy",
+ "dsi_phy_lane",
+ "dsi_pll";
+
+ #clock-cells = <1>;
+ #phy-cells = <0>;
+
+ clocks = <&dispcc_disp_cc_mdss_ahb_clk>,
+ <&rpmhcc_rpmh_cxo_clk>;
+ clock-names = "iface", "ref";
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sc7180-dpu.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sc7180-dpu.yaml
index 1fb8321d9ee8..8137618237ce 100644
--- a/Documentation/devicetree/bindings/display/msm/qcom,sc7180-dpu.yaml
+++ b/Documentation/devicetree/bindings/display/msm/qcom,sc7180-dpu.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/msm/qcom,sc7180-dpu.yaml#
@@ -13,7 +13,11 @@ $ref: /schemas/display/msm/dpu-common.yaml#
properties:
compatible:
- const: qcom,sc7180-dpu
+ enum:
+ - qcom,sc7180-dpu
+ - qcom,sm6125-dpu
+ - qcom,sm6350-dpu
+ - qcom,sm6375-dpu
reg:
items:
@@ -26,6 +30,7 @@ properties:
- const: vbif
clocks:
+ minItems: 6
items:
- description: Display hf axi clock
- description: Display ahb clock
@@ -33,8 +38,10 @@ properties:
- description: Display lut clock
- description: Display core clock
- description: Display vsync clock
+ - description: Display core throttle clock
clock-names:
+ minItems: 6
items:
- const: bus
- const: iface
@@ -42,6 +49,7 @@ properties:
- const: lut
- const: core
- const: vsync
+ - const: throttle
required:
- compatible
@@ -52,6 +60,22 @@ required:
unevaluatedProperties: false
+allOf:
+ - if:
+ properties:
+ compatible:
+ enum:
+ - qcom,sm6375-dpu
+ - qcom,sm6125-dpu
+
+ then:
+ properties:
+ clocks:
+ minItems: 7
+
+ clock-names:
+ minItems: 7
+
examples:
- |
#include <dt-bindings/clock/qcom,dispcc-sc7180.h>
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sc7180-mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sc7180-mdss.yaml
index 42ef06edddc4..7a0555b15ddf 100644
--- a/Documentation/devicetree/bindings/display/msm/qcom,sc7180-mdss.yaml
+++ b/Documentation/devicetree/bindings/display/msm/qcom,sc7180-mdss.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/msm/qcom,sc7180-mdss.yaml#
@@ -36,26 +36,36 @@ properties:
maxItems: 1
interconnects:
- maxItems: 1
+ items:
+ - description: Interconnect path from mdp0 port to the data bus
+ - description: Interconnect path from CPU to the reg bus
interconnect-names:
- maxItems: 1
+ items:
+ - const: mdp0-mem
+ - const: cpu-cfg
patternProperties:
"^display-controller@[0-9a-f]+$":
type: object
+ additionalProperties: true
+
properties:
compatible:
const: qcom,sc7180-dpu
"^displayport-controller@[0-9a-f]+$":
type: object
+ additionalProperties: true
+
properties:
compatible:
const: qcom,sc7180-dp
"^dsi@[0-9a-f]+$":
type: object
+ additionalProperties: true
+
properties:
compatible:
items:
@@ -64,6 +74,8 @@ patternProperties:
"^phy@[0-9a-f]+$":
type: object
+ additionalProperties: true
+
properties:
compatible:
const: qcom,dsi-phy-10nm
@@ -98,8 +110,10 @@ examples:
interrupt-controller;
#interrupt-cells = <1>;
- interconnects = <&mmss_noc MASTER_MDP0 &mc_virt SLAVE_EBI1>;
- interconnect-names = "mdp0-mem";
+ interconnects = <&mmss_noc MASTER_MDP0 &mc_virt SLAVE_EBI1>,
+ <&gem_noc MASTER_APPSS_PROC &config_noc SLAVE_DISPLAY_CFG>;
+ interconnect-names = "mdp0-mem",
+ "cpu-cfg";
iommus = <&apps_smmu 0x800 0x2>;
ranges;
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sc7280-dpu.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sc7280-dpu.yaml
index 26dc073bd19a..df9ec15ad6c3 100644
--- a/Documentation/devicetree/bindings/display/msm/qcom,sc7280-dpu.yaml
+++ b/Documentation/devicetree/bindings/display/msm/qcom,sc7280-dpu.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/msm/qcom,sc7280-dpu.yaml#
@@ -7,13 +7,22 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Qualcomm Display DPU on SC7280
maintainers:
+ - Bjorn Andersson <andersson@kernel.org>
+ - Neil Armstrong <neil.armstrong@linaro.org>
+ - Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
- Krishna Manikandan <quic_mkrishn@quicinc.com>
$ref: /schemas/display/msm/dpu-common.yaml#
properties:
compatible:
- const: qcom,sc7280-dpu
+ enum:
+ - qcom,sar2130p-dpu
+ - qcom,sc7280-dpu
+ - qcom,sc8280xp-dpu
+ - qcom,sm8350-dpu
+ - qcom,sm8450-dpu
+ - qcom,sm8550-dpu
reg:
items:
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sc7280-mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sc7280-mdss.yaml
index 078e1d1a7d2f..b643d3adf669 100644
--- a/Documentation/devicetree/bindings/display/msm/qcom,sc7280-mdss.yaml
+++ b/Documentation/devicetree/bindings/display/msm/qcom,sc7280-mdss.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/msm/qcom,sc7280-mdss.yaml#
@@ -36,26 +36,36 @@ properties:
maxItems: 1
interconnects:
- maxItems: 1
+ items:
+ - description: Interconnect path from mdp0 port to the data bus
+ - description: Interconnect path from CPU to the reg bus
interconnect-names:
- maxItems: 1
+ items:
+ - const: mdp0-mem
+ - const: cpu-cfg
patternProperties:
"^display-controller@[0-9a-f]+$":
type: object
+ additionalProperties: true
+
properties:
compatible:
const: qcom,sc7280-dpu
"^displayport-controller@[0-9a-f]+$":
type: object
+ additionalProperties: true
+
properties:
compatible:
const: qcom,sc7280-dp
"^dsi@[0-9a-f]+$":
type: object
+ additionalProperties: true
+
properties:
compatible:
items:
@@ -64,12 +74,16 @@ patternProperties:
"^edp@[0-9a-f]+$":
type: object
+ additionalProperties: true
+
properties:
compatible:
const: qcom,sc7280-edp
"^phy@[0-9a-f]+$":
type: object
+ additionalProperties: true
+
properties:
compatible:
enum:
@@ -108,8 +122,10 @@ examples:
interrupt-controller;
#interrupt-cells = <1>;
- interconnects = <&mmss_noc MASTER_MDP0 &mc_virt SLAVE_EBI1>;
- interconnect-names = "mdp0-mem";
+ interconnects = <&mmss_noc MASTER_MDP0 &mc_virt SLAVE_EBI1>,
+ <&gem_noc MASTER_APPSS_PROC &cnoc2 SLAVE_DISPLAY_CFG>;
+ interconnect-names = "mdp0-mem",
+ "cpu-cfg";
iommus = <&apps_smmu 0x900 0x402>;
ranges;
@@ -265,7 +281,8 @@ examples:
reg = <0xaea0000 0x200>,
<0xaea0200 0x200>,
<0xaea0400 0xc00>,
- <0xaea1000 0x400>;
+ <0xaea1000 0x400>,
+ <0xaea1400 0x400>;
interrupt-parent = <&mdss>;
interrupts = <14>;
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sc8180x-dpu.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sc8180x-dpu.yaml
new file mode 100644
index 000000000000..a411126708b8
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/msm/qcom,sc8180x-dpu.yaml
@@ -0,0 +1,103 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/msm/qcom,sc8180x-dpu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm SC8180X Display DPU
+
+maintainers:
+ - Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
+
+$ref: /schemas/display/msm/dpu-common.yaml#
+
+properties:
+ compatible:
+ const: qcom,sc8180x-dpu
+
+ reg:
+ items:
+ - description: Address offset and size for mdp register set
+ - description: Address offset and size for vbif register set
+
+ reg-names:
+ items:
+ - const: mdp
+ - const: vbif
+
+ clocks:
+ items:
+ - description: Display AHB clock
+ - description: Display HF AXI clock
+ - description: Display core clock
+ - description: Display vsync clock
+ - description: Display rotator clock
+ - description: Display LUT clock
+
+ clock-names:
+ items:
+ - const: iface
+ - const: bus
+ - const: core
+ - const: vsync
+ - const: rot
+ - const: lut
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,dispcc-sm8250.h>
+ #include <dt-bindings/clock/qcom,gcc-sc8180x.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/interconnect/qcom,sc8180x.h>
+ #include <dt-bindings/power/qcom-rpmpd.h>
+
+ display-controller@ae01000 {
+ compatible = "qcom,sc8180x-dpu";
+ reg = <0x0ae01000 0x8f000>,
+ <0x0aeb0000 0x2008>;
+ reg-names = "mdp", "vbif";
+
+ clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
+ <&gcc GCC_DISP_HF_AXI_CLK>,
+ <&dispcc DISP_CC_MDSS_MDP_CLK>,
+ <&dispcc DISP_CC_MDSS_VSYNC_CLK>,
+ <&dispcc DISP_CC_MDSS_ROT_CLK>,
+ <&dispcc DISP_CC_MDSS_MDP_LUT_CLK>;
+ clock-names = "iface",
+ "bus",
+ "core",
+ "vsync",
+ "rot",
+ "lut";
+
+ assigned-clocks = <&dispcc DISP_CC_MDSS_VSYNC_CLK>;
+ assigned-clock-rates = <19200000>;
+
+ operating-points-v2 = <&mdp_opp_table>;
+ power-domains = <&rpmhpd SC8180X_MMCX>;
+
+ interrupt-parent = <&mdss>;
+ interrupts = <0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ endpoint {
+ remote-endpoint = <&dsi0_in>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ endpoint {
+ remote-endpoint = <&dsi1_in>;
+ };
+ };
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sc8180x-mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sc8180x-mdss.yaml
new file mode 100644
index 000000000000..00e82bdbbcc7
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/msm/qcom,sc8180x-mdss.yaml
@@ -0,0 +1,359 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/msm/qcom,sc8180x-mdss.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm SC8180X Display MDSS
+
+maintainers:
+ - Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
+
+description:
+ Device tree bindings for MSM Mobile Display Subsystem(MDSS) that encapsulates
+ sub-blocks like DPU display controller, DSI and DP interfaces etc. Device tree
+ bindings of MDSS are mentioned for SC8180X target.
+
+$ref: /schemas/display/msm/mdss-common.yaml#
+
+properties:
+ compatible:
+ items:
+ - const: qcom,sc8180x-mdss
+
+ clocks:
+ items:
+ - description: Display AHB clock from gcc
+ - description: Display hf axi clock
+ - description: Display sf axi clock
+ - description: Display core clock
+
+ clock-names:
+ items:
+ - const: iface
+ - const: bus
+ - const: nrt_bus
+ - const: core
+
+ iommus:
+ maxItems: 1
+
+ interconnects:
+ maxItems: 3
+
+ interconnect-names:
+ maxItems: 3
+
+patternProperties:
+ "^display-controller@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ const: qcom,sc8180x-dpu
+
+ "^displayport-controller@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ enum:
+ - qcom,sc8180x-dp
+ - qcom,sc8180x-edp
+
+ "^dsi@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ contains:
+ const: qcom,sc8180x-dsi-ctrl
+
+ "^phy@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ const: qcom,dsi-phy-7nm
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,dispcc-sm8250.h>
+ #include <dt-bindings/clock/qcom,gcc-sc8180x.h>
+ #include <dt-bindings/clock/qcom,rpmh.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/interconnect/qcom,sc8180x.h>
+ #include <dt-bindings/power/qcom-rpmpd.h>
+
+ display-subsystem@ae00000 {
+ compatible = "qcom,sc8180x-mdss";
+ reg = <0x0ae00000 0x1000>;
+ reg-names = "mdss";
+
+ interconnects = <&mmss_noc MASTER_MDP_PORT0 &mc_virt SLAVE_EBI_CH0>,
+ <&mmss_noc MASTER_MDP_PORT1 &mc_virt SLAVE_EBI_CH0>,
+ <&gem_noc MASTER_AMPSS_M0 &config_noc SLAVE_DISPLAY_CFG>;
+ interconnect-names = "mdp0-mem",
+ "mdp1-mem",
+ "cpu-cfg";
+
+ power-domains = <&dispcc MDSS_GDSC>;
+
+ clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
+ <&gcc GCC_DISP_HF_AXI_CLK>,
+ <&gcc GCC_DISP_SF_AXI_CLK>,
+ <&dispcc DISP_CC_MDSS_MDP_CLK>;
+ clock-names = "iface", "bus", "nrt_bus", "core";
+
+ interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-controller;
+ #interrupt-cells = <1>;
+
+ iommus = <&apps_smmu 0x800 0x420>;
+
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ display-controller@ae01000 {
+ compatible = "qcom,sc8180x-dpu";
+ reg = <0x0ae01000 0x8f000>,
+ <0x0aeb0000 0x2008>;
+ reg-names = "mdp", "vbif";
+
+ clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
+ <&gcc GCC_DISP_HF_AXI_CLK>,
+ <&dispcc DISP_CC_MDSS_MDP_CLK>,
+ <&dispcc DISP_CC_MDSS_VSYNC_CLK>,
+ <&dispcc DISP_CC_MDSS_ROT_CLK>,
+ <&dispcc DISP_CC_MDSS_MDP_LUT_CLK>;
+ clock-names = "iface",
+ "bus",
+ "core",
+ "vsync",
+ "rot",
+ "lut";
+
+ assigned-clocks = <&dispcc DISP_CC_MDSS_VSYNC_CLK>;
+ assigned-clock-rates = <19200000>;
+
+ operating-points-v2 = <&mdp_opp_table>;
+ power-domains = <&rpmhpd SC8180X_MMCX>;
+
+ interrupt-parent = <&mdss>;
+ interrupts = <0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ dpu_intf1_out: endpoint {
+ remote-endpoint = <&dsi0_in>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ dpu_intf2_out: endpoint {
+ remote-endpoint = <&dsi1_in>;
+ };
+ };
+ };
+
+ mdp_opp_table: opp-table {
+ compatible = "operating-points-v2";
+
+ opp-171428571 {
+ opp-hz = /bits/ 64 <171428571>;
+ required-opps = <&rpmhpd_opp_low_svs>;
+ };
+
+ opp-300000000 {
+ opp-hz = /bits/ 64 <300000000>;
+ required-opps = <&rpmhpd_opp_svs>;
+ };
+
+ opp-345000000 {
+ opp-hz = /bits/ 64 <345000000>;
+ required-opps = <&rpmhpd_opp_svs_l1>;
+ };
+
+ opp-460000000 {
+ opp-hz = /bits/ 64 <460000000>;
+ required-opps = <&rpmhpd_opp_nom>;
+ };
+ };
+ };
+
+ dsi@ae94000 {
+ compatible = "qcom,sc8180x-dsi-ctrl",
+ "qcom,mdss-dsi-ctrl";
+ reg = <0x0ae94000 0x400>;
+ reg-names = "dsi_ctrl";
+
+ interrupt-parent = <&mdss>;
+ interrupts = <4>;
+
+ clocks = <&dispcc DISP_CC_MDSS_BYTE0_CLK>,
+ <&dispcc DISP_CC_MDSS_BYTE0_INTF_CLK>,
+ <&dispcc DISP_CC_MDSS_PCLK0_CLK>,
+ <&dispcc DISP_CC_MDSS_ESC0_CLK>,
+ <&dispcc DISP_CC_MDSS_AHB_CLK>,
+ <&gcc GCC_DISP_HF_AXI_CLK>;
+ clock-names = "byte",
+ "byte_intf",
+ "pixel",
+ "core",
+ "iface",
+ "bus";
+
+ assigned-clocks = <&dispcc DISP_CC_MDSS_BYTE0_CLK_SRC>,
+ <&dispcc DISP_CC_MDSS_PCLK0_CLK_SRC>;
+ assigned-clock-parents = <&dsi0_phy 0>, <&dsi0_phy 1>;
+
+ operating-points-v2 = <&dsi_opp_table>;
+ power-domains = <&rpmhpd SC8180X_MMCX>;
+
+ phys = <&dsi0_phy>;
+ phy-names = "dsi";
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ dsi0_in: endpoint {
+ remote-endpoint = <&dpu_intf1_out>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ dsi0_out: endpoint {
+ };
+ };
+ };
+
+ dsi_opp_table: opp-table {
+ compatible = "operating-points-v2";
+
+ opp-187500000 {
+ opp-hz = /bits/ 64 <187500000>;
+ required-opps = <&rpmhpd_opp_low_svs>;
+ };
+
+ opp-300000000 {
+ opp-hz = /bits/ 64 <300000000>;
+ required-opps = <&rpmhpd_opp_svs>;
+ };
+
+ opp-358000000 {
+ opp-hz = /bits/ 64 <358000000>;
+ required-opps = <&rpmhpd_opp_svs_l1>;
+ };
+ };
+ };
+
+ dsi0_phy: phy@ae94400 {
+ compatible = "qcom,dsi-phy-7nm";
+ reg = <0x0ae94400 0x200>,
+ <0x0ae94600 0x280>,
+ <0x0ae94900 0x260>;
+ reg-names = "dsi_phy",
+ "dsi_phy_lane",
+ "dsi_pll";
+
+ #clock-cells = <1>;
+ #phy-cells = <0>;
+
+ clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
+ <&rpmhcc RPMH_CXO_CLK>;
+ clock-names = "iface", "ref";
+ vdds-supply = <&vreg_dsi_phy>;
+ };
+
+ dsi@ae96000 {
+ compatible = "qcom,sc8180x-dsi-ctrl",
+ "qcom,mdss-dsi-ctrl";
+ reg = <0x0ae96000 0x400>;
+ reg-names = "dsi_ctrl";
+
+ interrupt-parent = <&mdss>;
+ interrupts = <5>;
+
+ clocks = <&dispcc DISP_CC_MDSS_BYTE1_CLK>,
+ <&dispcc DISP_CC_MDSS_BYTE1_INTF_CLK>,
+ <&dispcc DISP_CC_MDSS_PCLK1_CLK>,
+ <&dispcc DISP_CC_MDSS_ESC1_CLK>,
+ <&dispcc DISP_CC_MDSS_AHB_CLK>,
+ <&gcc GCC_DISP_HF_AXI_CLK>;
+ clock-names = "byte",
+ "byte_intf",
+ "pixel",
+ "core",
+ "iface",
+ "bus";
+
+ assigned-clocks = <&dispcc DISP_CC_MDSS_BYTE1_CLK_SRC>,
+ <&dispcc DISP_CC_MDSS_PCLK1_CLK_SRC>;
+ assigned-clock-parents = <&dsi1_phy 0>, <&dsi1_phy 1>;
+
+ operating-points-v2 = <&dsi_opp_table>;
+ power-domains = <&rpmhpd SC8180X_MMCX>;
+
+ phys = <&dsi1_phy>;
+ phy-names = "dsi";
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ dsi1_in: endpoint {
+ remote-endpoint = <&dpu_intf2_out>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ dsi1_out: endpoint {
+ };
+ };
+ };
+ };
+
+ dsi1_phy: phy@ae96400 {
+ compatible = "qcom,dsi-phy-7nm";
+ reg = <0x0ae96400 0x200>,
+ <0x0ae96600 0x280>,
+ <0x0ae96900 0x260>;
+ reg-names = "dsi_phy",
+ "dsi_phy_lane",
+ "dsi_pll";
+
+ #clock-cells = <1>;
+ #phy-cells = <0>;
+
+ clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
+ <&rpmhcc RPMH_CXO_CLK>;
+ clock-names = "iface", "ref";
+ vdds-supply = <&vreg_dsi_phy>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sc8280xp-dpu.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sc8280xp-dpu.yaml
deleted file mode 100644
index f2c8e16cf067..000000000000
--- a/Documentation/devicetree/bindings/display/msm/qcom,sc8280xp-dpu.yaml
+++ /dev/null
@@ -1,122 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
-%YAML 1.2
----
-$id: http://devicetree.org/schemas/display/msm/qcom,sc8280xp-dpu.yaml#
-$schema: http://devicetree.org/meta-schemas/core.yaml#
-
-title: Qualcomm SC8280XP Display Processing Unit
-
-maintainers:
- - Bjorn Andersson <andersson@kernel.org>
-
-description:
- Device tree bindings for SC8280XP Display Processing Unit.
-
-$ref: /schemas/display/msm/dpu-common.yaml#
-
-properties:
- compatible:
- const: qcom,sc8280xp-dpu
-
- reg:
- items:
- - description: Address offset and size for mdp register set
- - description: Address offset and size for vbif register set
-
- reg-names:
- items:
- - const: mdp
- - const: vbif
-
- clocks:
- items:
- - description: Display hf axi clock
- - description: Display sf axi clock
- - description: Display ahb clock
- - description: Display lut clock
- - description: Display core clock
- - description: Display vsync clock
-
- clock-names:
- items:
- - const: bus
- - const: nrt_bus
- - const: iface
- - const: lut
- - const: core
- - const: vsync
-
-unevaluatedProperties: false
-
-examples:
- - |
- #include <dt-bindings/clock/qcom,dispcc-sc8280xp.h>
- #include <dt-bindings/clock/qcom,gcc-sc8280xp.h>
- #include <dt-bindings/interrupt-controller/arm-gic.h>
- #include <dt-bindings/interconnect/qcom,sc8280xp.h>
- #include <dt-bindings/power/qcom-rpmpd.h>
-
- display-controller@ae01000 {
- compatible = "qcom,sc8280xp-dpu";
- reg = <0x0ae01000 0x8f000>,
- <0x0aeb0000 0x2008>;
- reg-names = "mdp", "vbif";
-
- clocks = <&gcc GCC_DISP_HF_AXI_CLK>,
- <&gcc GCC_DISP_SF_AXI_CLK>,
- <&dispcc0 DISP_CC_MDSS_AHB_CLK>,
- <&dispcc0 DISP_CC_MDSS_MDP_LUT_CLK>,
- <&dispcc0 DISP_CC_MDSS_MDP_CLK>,
- <&dispcc0 DISP_CC_MDSS_VSYNC_CLK>;
- clock-names = "bus",
- "nrt_bus",
- "iface",
- "lut",
- "core",
- "vsync";
-
- assigned-clocks = <&dispcc0 DISP_CC_MDSS_MDP_CLK>,
- <&dispcc0 DISP_CC_MDSS_VSYNC_CLK>;
- assigned-clock-rates = <460000000>,
- <19200000>;
-
- operating-points-v2 = <&mdp_opp_table>;
- power-domains = <&rpmhpd SC8280XP_MMCX>;
-
- interrupt-parent = <&mdss0>;
- interrupts = <0>;
-
- ports {
- #address-cells = <1>;
- #size-cells = <0>;
-
- port@0 {
- reg = <0>;
- endpoint {
- remote-endpoint = <&mdss0_dp0_in>;
- };
- };
-
- port@4 {
- reg = <4>;
- endpoint {
- remote-endpoint = <&mdss0_dp1_in>;
- };
- };
-
- port@5 {
- reg = <5>;
- endpoint {
- remote-endpoint = <&mdss0_dp3_in>;
- };
- };
-
- port@6 {
- reg = <6>;
- endpoint {
- remote-endpoint = <&mdss0_dp2_in>;
- };
- };
- };
- };
-...
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sc8280xp-mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sc8280xp-mdss.yaml
index c239544bc37f..af79406e1604 100644
--- a/Documentation/devicetree/bindings/display/msm/qcom,sc8280xp-mdss.yaml
+++ b/Documentation/devicetree/bindings/display/msm/qcom,sc8280xp-mdss.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/msm/qcom,sc8280xp-mdss.yaml#
@@ -34,12 +34,16 @@ properties:
patternProperties:
"^display-controller@[0-9a-f]+$":
type: object
+ additionalProperties: true
+
properties:
compatible:
const: qcom,sc8280xp-dpu
"^displayport-controller@[0-9a-f]+$":
type: object
+ additionalProperties: true
+
properties:
compatible:
enum:
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sdm670-mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sdm670-mdss.yaml
new file mode 100644
index 000000000000..7dc269322b8e
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/msm/qcom,sdm670-mdss.yaml
@@ -0,0 +1,292 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/msm/qcom,sdm670-mdss.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm SDM670 Display MDSS
+
+maintainers:
+ - Richard Acayan <mailingradian@gmail.com>
+
+description:
+ SDM670 MSM Mobile Display Subsystem (MDSS), which encapsulates sub-blocks
+ like DPU display controller, DSI and DP interfaces etc.
+
+$ref: /schemas/display/msm/mdss-common.yaml#
+
+properties:
+ compatible:
+ const: qcom,sdm670-mdss
+
+ clocks:
+ items:
+ - description: Display AHB clock from gcc
+ - description: Display core clock
+
+ clock-names:
+ items:
+ - const: iface
+ - const: core
+
+ iommus:
+ maxItems: 2
+
+ interconnects:
+ maxItems: 2
+
+ interconnect-names:
+ maxItems: 2
+
+patternProperties:
+ "^display-controller@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ const: qcom,sdm670-dpu
+
+ "^displayport-controller@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ const: qcom,sdm670-dp
+
+ "^dsi@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ contains:
+ const: qcom,sdm670-dsi-ctrl
+
+ "^phy@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ const: qcom,dsi-phy-10nm
+
+required:
+ - compatible
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,dispcc-sdm845.h>
+ #include <dt-bindings/clock/qcom,gcc-sdm845.h>
+ #include <dt-bindings/clock/qcom,rpmh.h>
+ #include <dt-bindings/interconnect/qcom,sdm670-rpmh.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/power/qcom-rpmpd.h>
+
+ display-subsystem@ae00000 {
+ compatible = "qcom,sdm670-mdss";
+ reg = <0x0ae00000 0x1000>;
+ reg-names = "mdss";
+ power-domains = <&dispcc MDSS_GDSC>;
+
+ clocks = <&gcc GCC_DISP_AHB_CLK>,
+ <&dispcc DISP_CC_MDSS_MDP_CLK>;
+ clock-names = "iface", "core";
+
+ interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-controller;
+ #interrupt-cells = <1>;
+
+ interconnects = <&mmss_noc MASTER_MDP_PORT0 0 &mem_noc SLAVE_EBI_CH0 0>,
+ <&mmss_noc MASTER_MDP_PORT1 0 &mem_noc SLAVE_EBI_CH0 0>;
+ interconnect-names = "mdp0-mem", "mdp1-mem";
+
+ iommus = <&apps_smmu 0x880 0x8>,
+ <&apps_smmu 0xc80 0x8>;
+
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ display-controller@ae01000 {
+ compatible = "qcom,sdm670-dpu";
+ reg = <0x0ae01000 0x8f000>,
+ <0x0aeb0000 0x2008>;
+ reg-names = "mdp", "vbif";
+
+ clocks = <&gcc GCC_DISP_AXI_CLK>,
+ <&dispcc DISP_CC_MDSS_AHB_CLK>,
+ <&dispcc DISP_CC_MDSS_AXI_CLK>,
+ <&dispcc DISP_CC_MDSS_MDP_CLK>,
+ <&dispcc DISP_CC_MDSS_VSYNC_CLK>;
+ clock-names = "gcc-bus", "iface", "bus", "core", "vsync";
+
+ interrupt-parent = <&mdss>;
+ interrupts = <0>;
+ power-domains = <&rpmhpd SDM670_CX>;
+ operating-points-v2 = <&mdp_opp_table>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ dpu_intf1_out: endpoint {
+ remote-endpoint = <&mdss_dsi0_in>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ dpu_intf2_out: endpoint {
+ remote-endpoint = <&mdss_dsi1_in>;
+ };
+ };
+ };
+ };
+
+ dsi@ae94000 {
+ compatible = "qcom,sdm670-dsi-ctrl", "qcom,mdss-dsi-ctrl";
+ reg = <0x0ae94000 0x400>;
+ reg-names = "dsi_ctrl";
+
+ interrupt-parent = <&mdss>;
+ interrupts = <4>;
+
+ clocks = <&dispcc DISP_CC_MDSS_BYTE0_CLK>,
+ <&dispcc DISP_CC_MDSS_BYTE0_INTF_CLK>,
+ <&dispcc DISP_CC_MDSS_PCLK0_CLK>,
+ <&dispcc DISP_CC_MDSS_ESC0_CLK>,
+ <&dispcc DISP_CC_MDSS_AHB_CLK>,
+ <&dispcc DISP_CC_MDSS_AXI_CLK>;
+ clock-names = "byte",
+ "byte_intf",
+ "pixel",
+ "core",
+ "iface",
+ "bus";
+ assigned-clocks = <&dispcc DISP_CC_MDSS_BYTE0_CLK_SRC>,
+ <&dispcc DISP_CC_MDSS_PCLK0_CLK_SRC>;
+ assigned-clock-parents = <&mdss_dsi0_phy 0>, <&mdss_dsi0_phy 1>;
+
+ operating-points-v2 = <&dsi_opp_table>;
+ power-domains = <&rpmhpd SDM670_CX>;
+
+ phys = <&mdss_dsi0_phy>;
+ phy-names = "dsi";
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ mdss_dsi0_in: endpoint {
+ remote-endpoint = <&dpu_intf1_out>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ mdss_dsi0_out: endpoint {
+ };
+ };
+ };
+ };
+
+ mdss_dsi0_phy: phy@ae94400 {
+ compatible = "qcom,dsi-phy-10nm";
+ reg = <0x0ae94400 0x200>,
+ <0x0ae94600 0x280>,
+ <0x0ae94a00 0x1e0>;
+ reg-names = "dsi_phy",
+ "dsi_phy_lane",
+ "dsi_pll";
+
+ #clock-cells = <1>;
+ #phy-cells = <0>;
+
+ clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
+ <&rpmhcc RPMH_CXO_CLK>;
+ clock-names = "iface", "ref";
+ vdds-supply = <&vreg_dsi_phy>;
+ };
+
+ dsi@ae96000 {
+ compatible = "qcom,sdm670-dsi-ctrl", "qcom,mdss-dsi-ctrl";
+ reg = <0x0ae96000 0x400>;
+ reg-names = "dsi_ctrl";
+
+ interrupt-parent = <&mdss>;
+ interrupts = <5>;
+
+ clocks = <&dispcc DISP_CC_MDSS_BYTE1_CLK>,
+ <&dispcc DISP_CC_MDSS_BYTE1_INTF_CLK>,
+ <&dispcc DISP_CC_MDSS_PCLK1_CLK>,
+ <&dispcc DISP_CC_MDSS_ESC1_CLK>,
+ <&dispcc DISP_CC_MDSS_AHB_CLK>,
+ <&dispcc DISP_CC_MDSS_AXI_CLK>;
+ clock-names = "byte",
+ "byte_intf",
+ "pixel",
+ "core",
+ "iface",
+ "bus";
+ assigned-clocks = <&dispcc DISP_CC_MDSS_BYTE1_CLK_SRC>,
+ <&dispcc DISP_CC_MDSS_PCLK1_CLK_SRC>;
+ assigned-clock-parents = <&dsi1_phy 0>, <&dsi1_phy 1>;
+
+ operating-points-v2 = <&dsi_opp_table>;
+ power-domains = <&rpmhpd SDM670_CX>;
+
+ phys = <&dsi1_phy>;
+ phy-names = "dsi";
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ mdss_dsi1_in: endpoint {
+ remote-endpoint = <&dpu_intf2_out>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ mdss_dsi1_out: endpoint {
+ };
+ };
+ };
+ };
+
+ mdss_dsi1_phy: phy@ae96400 {
+ compatible = "qcom,dsi-phy-10nm";
+ reg = <0x0ae96400 0x200>,
+ <0x0ae96600 0x280>,
+ <0x0ae96a00 0x10e>;
+ reg-names = "dsi_phy",
+ "dsi_phy_lane",
+ "dsi_pll";
+
+ #clock-cells = <1>;
+ #phy-cells = <0>;
+
+ clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
+ <&rpmhcc RPMH_CXO_CLK>;
+ clock-names = "iface", "ref";
+ vdds-supply = <&vreg_dsi_phy>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sdm845-dpu.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sdm845-dpu.yaml
index 0f7765d832e7..dc11fd421a27 100644
--- a/Documentation/devicetree/bindings/display/msm/qcom,sdm845-dpu.yaml
+++ b/Documentation/devicetree/bindings/display/msm/qcom,sdm845-dpu.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/msm/qcom,sdm845-dpu.yaml#
@@ -13,7 +13,9 @@ $ref: /schemas/display/msm/dpu-common.yaml#
properties:
compatible:
- const: qcom,sdm845-dpu
+ enum:
+ - qcom,sdm670-dpu
+ - qcom,sdm845-dpu
reg:
items:
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sdm845-mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sdm845-mdss.yaml
index 6ecb00920d7f..6e8b69e5ec62 100644
--- a/Documentation/devicetree/bindings/display/msm/qcom,sdm845-mdss.yaml
+++ b/Documentation/devicetree/bindings/display/msm/qcom,sdm845-mdss.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/msm/qcom,sdm845-mdss.yaml#
@@ -42,18 +42,24 @@ properties:
patternProperties:
"^display-controller@[0-9a-f]+$":
type: object
+ additionalProperties: true
+
properties:
compatible:
const: qcom,sdm845-dpu
"^displayport-controller@[0-9a-f]+$":
type: object
+ additionalProperties: true
+
properties:
compatible:
const: qcom,sdm845-dp
"^dsi@[0-9a-f]+$":
type: object
+ additionalProperties: true
+
properties:
compatible:
items:
@@ -62,6 +68,8 @@ patternProperties:
"^phy@[0-9a-f]+$":
type: object
+ additionalProperties: true
+
properties:
compatible:
const: qcom,dsi-phy-10nm
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sm6115-dpu.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sm6115-dpu.yaml
index bf62c2f5325a..510eb6c19364 100644
--- a/Documentation/devicetree/bindings/display/msm/qcom,sm6115-dpu.yaml
+++ b/Documentation/devicetree/bindings/display/msm/qcom,sm6115-dpu.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/msm/qcom,sm6115-dpu.yaml#
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sm6115-mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sm6115-mdss.yaml
index b9f83088f370..309de1953c88 100644
--- a/Documentation/devicetree/bindings/display/msm/qcom,sm6115-mdss.yaml
+++ b/Documentation/devicetree/bindings/display/msm/qcom,sm6115-mdss.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/msm/qcom,sm6115-mdss.yaml#
@@ -29,15 +29,29 @@ properties:
iommus:
maxItems: 2
+ interconnects:
+ items:
+ - description: Interconnect path from mdp0 port to the data bus
+ - description: Interconnect path from CPU to the reg bus
+
+ interconnect-names:
+ items:
+ - const: mdp0-mem
+ - const: cpu-cfg
+
patternProperties:
"^display-controller@[0-9a-f]+$":
type: object
+ additionalProperties: true
+
properties:
compatible:
const: qcom,sm6115-dpu
"^dsi@[0-9a-f]+$":
type: object
+ additionalProperties: true
+
properties:
compatible:
oneOf:
@@ -50,6 +64,8 @@ patternProperties:
"^phy@[0-9a-f]+$":
type: object
+ additionalProperties: true
+
properties:
compatible:
const: qcom,dsi-phy-14nm-2290
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sm6125-mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sm6125-mdss.yaml
new file mode 100644
index 000000000000..3deb9dc81c9c
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/msm/qcom,sm6125-mdss.yaml
@@ -0,0 +1,223 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/msm/qcom,sm6125-mdss.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm SM6125 Display MDSS
+
+maintainers:
+ - Marijn Suijten <marijn.suijten@somainline.org>
+
+description:
+ SM6125 MSM Mobile Display Subsystem (MDSS), which encapsulates sub-blocks
+ like DPU display controller, DSI and DP interfaces etc.
+
+$ref: /schemas/display/msm/mdss-common.yaml#
+
+properties:
+ compatible:
+ const: qcom,sm6125-mdss
+
+ clocks:
+ items:
+ - description: Display AHB clock from gcc
+ - description: Display AHB clock
+ - description: Display core clock
+
+ clock-names:
+ items:
+ - const: iface
+ - const: ahb
+ - const: core
+
+ iommus:
+ maxItems: 1
+
+ interconnects:
+ items:
+ - description: Interconnect path from mdp0 port to the data bus
+ - description: Interconnect path from CPU to the reg bus
+
+ interconnect-names:
+ items:
+ - const: mdp0-mem
+ - const: cpu-cfg
+
+patternProperties:
+ "^display-controller@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ const: qcom,sm6125-dpu
+
+ "^dsi@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ items:
+ - const: qcom,sm6125-dsi-ctrl
+ - const: qcom,mdss-dsi-ctrl
+
+ "^phy@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ const: qcom,sm6125-dsi-phy-14nm
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,dispcc-sm6125.h>
+ #include <dt-bindings/clock/qcom,gcc-sm6125.h>
+ #include <dt-bindings/clock/qcom,rpmcc.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/power/qcom-rpmpd.h>
+
+ display-subsystem@5e00000 {
+ compatible = "qcom,sm6125-mdss";
+ reg = <0x05e00000 0x1000>;
+ reg-names = "mdss";
+
+ interrupts = <GIC_SPI 186 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-controller;
+ #interrupt-cells = <1>;
+
+ clocks = <&gcc GCC_DISP_AHB_CLK>,
+ <&dispcc DISP_CC_MDSS_AHB_CLK>,
+ <&dispcc DISP_CC_MDSS_MDP_CLK>;
+ clock-names = "iface",
+ "ahb",
+ "core";
+
+ power-domains = <&dispcc MDSS_GDSC>;
+
+ iommus = <&apps_smmu 0x400 0x0>;
+
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ display-controller@5e01000 {
+ compatible = "qcom,sm6125-dpu";
+ reg = <0x05e01000 0x83208>,
+ <0x05eb0000 0x2008>;
+ reg-names = "mdp", "vbif";
+
+ interrupt-parent = <&mdss>;
+ interrupts = <0>;
+
+ clocks = <&gcc GCC_DISP_HF_AXI_CLK>,
+ <&dispcc DISP_CC_MDSS_AHB_CLK>,
+ <&dispcc DISP_CC_MDSS_ROT_CLK>,
+ <&dispcc DISP_CC_MDSS_MDP_LUT_CLK>,
+ <&dispcc DISP_CC_MDSS_MDP_CLK>,
+ <&dispcc DISP_CC_MDSS_VSYNC_CLK>,
+ <&gcc GCC_DISP_THROTTLE_CORE_CLK>;
+ clock-names = "bus",
+ "iface",
+ "rot",
+ "lut",
+ "core",
+ "vsync",
+ "throttle";
+ assigned-clocks = <&dispcc DISP_CC_MDSS_VSYNC_CLK>;
+ assigned-clock-rates = <19200000>;
+
+ operating-points-v2 = <&mdp_opp_table>;
+ power-domains = <&rpmpd SM6125_VDDCX>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ dpu_intf1_out: endpoint {
+ remote-endpoint = <&mdss_dsi0_in>;
+ };
+ };
+ };
+ };
+
+ dsi@5e94000 {
+ compatible = "qcom,sm6125-dsi-ctrl", "qcom,mdss-dsi-ctrl";
+ reg = <0x05e94000 0x400>;
+ reg-names = "dsi_ctrl";
+
+ interrupt-parent = <&mdss>;
+ interrupts = <4>;
+
+ clocks = <&dispcc DISP_CC_MDSS_BYTE0_CLK>,
+ <&dispcc DISP_CC_MDSS_BYTE0_INTF_CLK>,
+ <&dispcc DISP_CC_MDSS_PCLK0_CLK>,
+ <&dispcc DISP_CC_MDSS_ESC0_CLK>,
+ <&dispcc DISP_CC_MDSS_AHB_CLK>,
+ <&gcc GCC_DISP_HF_AXI_CLK>;
+ clock-names = "byte",
+ "byte_intf",
+ "pixel",
+ "core",
+ "iface",
+ "bus";
+ assigned-clocks = <&dispcc DISP_CC_MDSS_BYTE0_CLK_SRC>,
+ <&dispcc DISP_CC_MDSS_PCLK0_CLK_SRC>;
+ assigned-clock-parents = <&mdss_dsi0_phy 0>, <&mdss_dsi0_phy 1>;
+
+ operating-points-v2 = <&dsi_opp_table>;
+ power-domains = <&rpmpd SM6125_VDDCX>;
+
+ phys = <&mdss_dsi0_phy>;
+ phy-names = "dsi";
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ mdss_dsi0_in: endpoint {
+ remote-endpoint = <&dpu_intf1_out>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ mdss_dsi0_out: endpoint {
+ };
+ };
+ };
+ };
+
+ phy@5e94400 {
+ compatible = "qcom,sm6125-dsi-phy-14nm";
+ reg = <0x05e94400 0x100>,
+ <0x05e94500 0x300>,
+ <0x05e94800 0x188>;
+ reg-names = "dsi_phy",
+ "dsi_phy_lane",
+ "dsi_pll";
+
+ #clock-cells = <1>;
+ #phy-cells = <0>;
+
+ clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
+ <&rpmcc RPM_SMD_XO_CLK_SRC>;
+ clock-names = "iface",
+ "ref";
+
+ required-opps = <&rpmpd_opp_nom>;
+ power-domains = <&rpmpd SM6125_VDDMX>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sm6150-dpu.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sm6150-dpu.yaml
new file mode 100644
index 000000000000..b4f437172218
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/msm/qcom,sm6150-dpu.yaml
@@ -0,0 +1,108 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/msm/qcom,sm6150-dpu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm SM6150 Display DPU
+
+maintainers:
+ - Abhinav Kumar <quic_abhinavk@quicinc.com>
+ - Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
+
+$ref: /schemas/display/msm/dpu-common.yaml#
+
+properties:
+ compatible:
+ const: qcom,sm6150-dpu
+
+ reg:
+ items:
+ - description: Address offset and size for mdp register set
+ - description: Address offset and size for vbif register set
+
+ reg-names:
+ items:
+ - const: mdp
+ - const: vbif
+
+ clocks:
+ items:
+ - description: Display ahb clock
+ - description: Display hf axi clock
+ - description: Display core clock
+ - description: Display vsync clock
+
+ clock-names:
+ items:
+ - const: iface
+ - const: bus
+ - const: core
+ - const: vsync
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/power/qcom,rpmhpd.h>
+
+ display-controller@ae01000 {
+ compatible = "qcom,sm6150-dpu";
+ reg = <0x0ae01000 0x8f000>,
+ <0x0aeb0000 0x2008>;
+ reg-names = "mdp", "vbif";
+
+ clocks = <&dispcc_mdss_ahb_clk>,
+ <&gcc_disp_hf_axi_clk>,
+ <&dispcc_mdss_mdp_clk>,
+ <&dispcc_mdss_vsync_clk>;
+ clock-names = "iface", "bus", "core", "vsync";
+
+ assigned-clocks = <&dispcc_mdss_vsync_clk>;
+ assigned-clock-rates = <19200000>;
+
+ operating-points-v2 = <&mdp_opp_table>;
+ power-domains = <&rpmhpd RPMHPD_CX>;
+
+ interrupt-parent = <&mdss>;
+ interrupts = <0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ dpu_intf0_out: endpoint {
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ dpu_intf1_out: endpoint {
+ remote-endpoint = <&mdss_dsi0_in>;
+ };
+ };
+ };
+
+ mdp_opp_table: opp-table {
+ compatible = "operating-points-v2";
+
+ opp-19200000 {
+ opp-hz = /bits/ 64 <19200000>;
+ required-opps = <&rpmhpd_opp_low_svs>;
+ };
+
+ opp-25600000 {
+ opp-hz = /bits/ 64 <25600000>;
+ required-opps = <&rpmhpd_opp_svs>;
+ };
+
+ opp-307200000 {
+ opp-hz = /bits/ 64 <307200000>;
+ required-opps = <&rpmhpd_opp_nom>;
+ };
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sm6150-mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sm6150-mdss.yaml
new file mode 100644
index 000000000000..46e9335f849f
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/msm/qcom,sm6150-mdss.yaml
@@ -0,0 +1,255 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/msm/qcom,sm6150-mdss.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm SM6150 Display MDSS
+
+maintainers:
+ - Abhinav Kumar <quic_abhinavk@quicinc.com>
+ - Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
+
+description:
+ Device tree bindings for MSM Mobile Display Subsystem(MDSS) that encapsulates
+ sub-blocks like DPU display controller, DSI and DP interfaces etc. Device tree
+ bindings of MDSS are mentioned for SM6150 target.
+
+$ref: /schemas/display/msm/mdss-common.yaml#
+
+properties:
+ compatible:
+ items:
+ - const: qcom,sm6150-mdss
+
+ clocks:
+ items:
+ - description: Display AHB clock from gcc
+ - description: Display hf axi clock
+ - description: Display core clock
+
+ clock-names:
+ items:
+ - const: iface
+ - const: bus
+ - const: core
+
+ iommus:
+ maxItems: 1
+
+ interconnects:
+ maxItems: 2
+
+ interconnect-names:
+ maxItems: 2
+
+patternProperties:
+ "^display-controller@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+ properties:
+ compatible:
+ const: qcom,sm6150-dpu
+
+ "^displayport-controller@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+ properties:
+ compatible:
+ contains:
+ const: qcom,sm6150-dp
+
+ "^dsi@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+ properties:
+ compatible:
+ items:
+ - const: qcom,sm6150-dsi-ctrl
+ - const: qcom,mdss-dsi-ctrl
+
+ "^phy@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+ properties:
+ compatible:
+ const: qcom,sm6150-dsi-phy-14nm
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,rpmh.h>
+ #include <dt-bindings/interconnect/qcom,icc.h>
+ #include <dt-bindings/interconnect/qcom,qcs615-rpmh.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/power/qcom,rpmhpd.h>
+
+ display-subsystem@ae00000 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "qcom,sm6150-mdss";
+ reg = <0x0ae00000 0x1000>;
+ reg-names = "mdss";
+
+ interconnects = <&mmss_noc MASTER_MDP0 QCOM_ICC_TAG_ALWAYS
+ &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>,
+ <&gem_noc MASTER_APPSS_PROC QCOM_ICC_TAG_ACTIVE_ONLY
+ &config_noc SLAVE_DISPLAY_CFG QCOM_ICC_TAG_ACTIVE_ONLY>;
+ interconnect-names = "mdp0-mem", "cpu-cfg";
+
+ power-domains = <&dispcc_mdss_gdsc>;
+
+ clocks = <&dispcc_mdss_ahb_clk>,
+ <&gcc_disp_hf_axi_clk>,
+ <&dispcc_mdss_mdp_clk>;
+
+ interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-controller;
+ #interrupt-cells = <1>;
+
+ iommus = <&apps_smmu 0x800 0x0>;
+
+ ranges;
+
+ display-controller@ae01000 {
+ compatible = "qcom,sm6150-dpu";
+ reg = <0x0ae01000 0x8f000>,
+ <0x0aeb0000 0x2008>;
+ reg-names = "mdp", "vbif";
+
+ clocks = <&dispcc_mdss_ahb_clk>,
+ <&gcc_disp_hf_axi_clk>,
+ <&dispcc_mdss_mdp_clk>,
+ <&dispcc_mdss_vsync_clk>;
+ clock-names = "iface", "bus", "core", "vsync";
+
+ assigned-clocks = <&dispcc_mdss_vsync_clk>;
+ assigned-clock-rates = <19200000>;
+
+ operating-points-v2 = <&mdp_opp_table>;
+ power-domains = <&rpmhpd RPMHPD_CX>;
+
+ interrupt-parent = <&mdss>;
+ interrupts = <0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ dpu_intf0_out: endpoint {
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ dpu_intf1_out: endpoint {
+ remote-endpoint = <&mdss_dsi0_in>;
+ };
+ };
+ };
+
+ mdp_opp_table: opp-table {
+ compatible = "operating-points-v2";
+
+ opp-192000000 {
+ opp-hz = /bits/ 64 <192000000>;
+ required-opps = <&rpmhpd_opp_low_svs>;
+ };
+
+ opp-256000000 {
+ opp-hz = /bits/ 64 <256000000>;
+ required-opps = <&rpmhpd_opp_svs>;
+ };
+
+ opp-307200000 {
+ opp-hz = /bits/ 64 <307200000>;
+ required-opps = <&rpmhpd_opp_nom>;
+ };
+ };
+ };
+
+ dsi@ae94000 {
+ compatible = "qcom,sm6150-dsi-ctrl",
+ "qcom,mdss-dsi-ctrl";
+ reg = <0x0ae94000 0x400>;
+ reg-names = "dsi_ctrl";
+
+ interrupt-parent = <&mdss>;
+ interrupts = <4>;
+
+ clocks = <&dispcc_mdss_byte0_clk>,
+ <&dispcc_mdss_byte0_intf_clk>,
+ <&dispcc_mdss_pclk0_clk>,
+ <&dispcc_mdss_esc0_clk>,
+ <&dispcc_mdss_ahb_clk>,
+ <&gcc_disp_hf_axi_clk>;
+ clock-names = "byte",
+ "byte_intf",
+ "pixel",
+ "core",
+ "iface",
+ "bus";
+
+ assigned-clocks = <&dispcc_mdss_byte0_clk_src>,
+ <&dispcc_mdss_pclk0_clk_src>;
+ assigned-clock-parents = <&mdss_dsi0_phy 0>,
+ <&mdss_dsi0_phy 1>;
+
+ operating-points-v2 = <&dsi0_opp_table>;
+
+ phys = <&mdss_dsi0_phy>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ mdss_dsi0_in: endpoint {
+ remote-endpoint = <&dpu_intf1_out>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ mdss_dsi0_out: endpoint {
+ };
+ };
+ };
+
+ dsi0_opp_table: opp-table {
+ compatible = "operating-points-v2";
+
+ opp-164000000 {
+ opp-hz = /bits/ 64 <164000000>;
+ required-opps = <&rpmhpd_opp_low_svs>;
+ };
+ };
+ };
+
+ mdss_dsi0_phy: phy@ae94400 {
+ compatible = "qcom,sm6150-dsi-phy-14nm";
+ reg = <0x0ae94400 0x100>,
+ <0x0ae94500 0x300>,
+ <0x0ae94800 0x188>;
+ reg-names = "dsi_phy",
+ "dsi_phy_lane",
+ "dsi_pll";
+
+ #clock-cells = <1>;
+ #phy-cells = <0>;
+
+ clocks = <&dispcc_mdss_ahb_clk>,
+ <&rpmhcc RPMH_CXO_CLK>;
+ clock-names = "iface", "ref";
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sm6350-mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sm6350-mdss.yaml
new file mode 100644
index 000000000000..bba666bdffe5
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/msm/qcom,sm6350-mdss.yaml
@@ -0,0 +1,225 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/msm/qcom,sm6350-mdss.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm SM6350 Display MDSS
+
+maintainers:
+ - Krishna Manikandan <quic_mkrishn@quicinc.com>
+
+description:
+ SM6350 MSM Mobile Display Subsystem (MDSS), which encapsulates sub-blocks
+ like DPU display controller, DSI and DP interfaces etc.
+
+$ref: /schemas/display/msm/mdss-common.yaml#
+
+properties:
+ compatible:
+ const: qcom,sm6350-mdss
+
+ clocks:
+ items:
+ - description: Display AHB clock from gcc
+ - description: Display AXI clock from gcc
+ - description: Display core clock
+
+ clock-names:
+ items:
+ - const: iface
+ - const: bus
+ - const: core
+
+ iommus:
+ maxItems: 1
+
+ interconnects:
+ items:
+ - description: Interconnect path from mdp0 port to the data bus
+ - description: Interconnect path from CPU to the reg bus
+
+ interconnect-names:
+ items:
+ - const: mdp0-mem
+ - const: cpu-cfg
+
+patternProperties:
+ "^display-controller@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ const: qcom,sm6350-dpu
+
+ "^displayport-controller@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ contains:
+ const: qcom,sm6350-dp
+
+ "^dsi@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ items:
+ - const: qcom,sm6350-dsi-ctrl
+ - const: qcom,mdss-dsi-ctrl
+
+ "^phy@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ const: qcom,dsi-phy-10nm
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,dispcc-sm6350.h>
+ #include <dt-bindings/clock/qcom,gcc-sm6350.h>
+ #include <dt-bindings/clock/qcom,rpmh.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/power/qcom-rpmpd.h>
+
+ display-subsystem@ae00000 {
+ compatible = "qcom,sm6350-mdss";
+ reg = <0x0ae00000 0x1000>;
+ reg-names = "mdss";
+
+ power-domains = <&dispcc MDSS_GDSC>;
+
+ clocks = <&gcc GCC_DISP_AHB_CLK>,
+ <&gcc GCC_DISP_AXI_CLK>,
+ <&dispcc DISP_CC_MDSS_MDP_CLK>;
+ clock-names = "iface", "bus", "core";
+
+ interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-controller;
+ #interrupt-cells = <1>;
+
+ iommus = <&apps_smmu 0x800 0x2>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ display-controller@ae01000 {
+ compatible = "qcom,sm6350-dpu";
+ reg = <0x0ae01000 0x8f000>,
+ <0x0aeb0000 0x2008>;
+ reg-names = "mdp", "vbif";
+
+ clocks = <&gcc GCC_DISP_AXI_CLK>,
+ <&dispcc DISP_CC_MDSS_AHB_CLK>,
+ <&dispcc DISP_CC_MDSS_ROT_CLK>,
+ <&dispcc DISP_CC_MDSS_MDP_LUT_CLK>,
+ <&dispcc DISP_CC_MDSS_MDP_CLK>,
+ <&dispcc DISP_CC_MDSS_VSYNC_CLK>;
+ clock-names = "bus", "iface", "rot", "lut", "core",
+ "vsync";
+
+ assigned-clocks = <&dispcc DISP_CC_MDSS_MDP_CLK>,
+ <&dispcc DISP_CC_MDSS_VSYNC_CLK>,
+ <&dispcc DISP_CC_MDSS_ROT_CLK>,
+ <&dispcc DISP_CC_MDSS_AHB_CLK>;
+ assigned-clock-rates = <300000000>,
+ <19200000>,
+ <19200000>,
+ <19200000>;
+
+ interrupt-parent = <&mdss>;
+ interrupts = <0>;
+ operating-points-v2 = <&mdp_opp_table>;
+ power-domains = <&rpmhpd SM6350_CX>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ dpu_intf1_out: endpoint {
+ remote-endpoint = <&dsi0_in>;
+ };
+ };
+ };
+ };
+
+ dsi@ae94000 {
+ compatible = "qcom,sm6350-dsi-ctrl", "qcom,mdss-dsi-ctrl";
+ reg = <0x0ae94000 0x400>;
+ reg-names = "dsi_ctrl";
+
+ interrupt-parent = <&mdss>;
+ interrupts = <4>;
+
+ clocks = <&dispcc DISP_CC_MDSS_BYTE0_CLK>,
+ <&dispcc DISP_CC_MDSS_BYTE0_INTF_CLK>,
+ <&dispcc DISP_CC_MDSS_PCLK0_CLK>,
+ <&dispcc DISP_CC_MDSS_ESC0_CLK>,
+ <&dispcc DISP_CC_MDSS_AHB_CLK>,
+ <&gcc GCC_DISP_AXI_CLK>;
+ clock-names = "byte",
+ "byte_intf",
+ "pixel",
+ "core",
+ "iface",
+ "bus";
+
+ assigned-clocks = <&dispcc DISP_CC_MDSS_BYTE0_CLK_SRC>,
+ <&dispcc DISP_CC_MDSS_PCLK0_CLK_SRC>;
+ assigned-clock-parents = <&dsi0_phy 0>, <&dsi0_phy 1>;
+
+ operating-points-v2 = <&dsi_opp_table>;
+ power-domains = <&rpmhpd SM6350_MX>;
+
+ phys = <&dsi0_phy>;
+ phy-names = "dsi";
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ dsi0_in: endpoint {
+ remote-endpoint = <&dpu_intf1_out>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ dsi0_out: endpoint {
+ };
+ };
+ };
+ };
+
+ dsi0_phy: phy@ae94400 {
+ compatible = "qcom,dsi-phy-10nm";
+ reg = <0x0ae94400 0x200>,
+ <0x0ae94600 0x280>,
+ <0x0ae94a00 0x1e0>;
+ reg-names = "dsi_phy",
+ "dsi_phy_lane",
+ "dsi_pll";
+
+ #clock-cells = <1>;
+ #phy-cells = <0>;
+
+ clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>, <&rpmhcc RPMH_CXO_CLK>;
+ clock-names = "iface", "ref";
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sm6375-mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sm6375-mdss.yaml
new file mode 100644
index 000000000000..e22b4c433fd0
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/msm/qcom,sm6375-mdss.yaml
@@ -0,0 +1,218 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/msm/qcom,sm6375-mdss.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm SM6375 Display MDSS
+
+maintainers:
+ - Konrad Dybcio <konradybcio@kernel.org>
+
+description:
+ SM6375 MSM Mobile Display Subsystem (MDSS), which encapsulates sub-blocks
+ like DPU display controller, DSI and DP interfaces etc.
+
+$ref: /schemas/display/msm/mdss-common.yaml#
+
+properties:
+ compatible:
+ const: qcom,sm6375-mdss
+
+ clocks:
+ items:
+ - description: Display AHB clock from gcc
+ - description: Display AHB clock
+ - description: Display core clock
+
+ clock-names:
+ items:
+ - const: iface
+ - const: ahb
+ - const: core
+
+ iommus:
+ maxItems: 1
+
+ interconnects:
+ items:
+ - description: Interconnect path from mdp0 port to the data bus
+ - description: Interconnect path from CPU to the reg bus
+
+ interconnect-names:
+ items:
+ - const: mdp0-mem
+ - const: cpu-cfg
+
+patternProperties:
+ "^display-controller@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ const: qcom,sm6375-dpu
+
+ "^dsi@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ items:
+ - const: qcom,sm6375-dsi-ctrl
+ - const: qcom,mdss-dsi-ctrl
+
+ "^phy@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ const: qcom,sm6375-dsi-phy-7nm
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,rpmcc.h>
+ #include <dt-bindings/clock/qcom,sm6375-gcc.h>
+ #include <dt-bindings/clock/qcom,sm6375-dispcc.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/power/qcom-rpmpd.h>
+
+ display-subsystem@5e00000 {
+ compatible = "qcom,sm6375-mdss";
+ reg = <0x05e00000 0x1000>;
+ reg-names = "mdss";
+
+ power-domains = <&dispcc MDSS_GDSC>;
+
+ clocks = <&gcc GCC_DISP_AHB_CLK>,
+ <&dispcc DISP_CC_MDSS_AHB_CLK>,
+ <&dispcc DISP_CC_MDSS_MDP_CLK>;
+ clock-names = "iface", "ahb", "core";
+
+ interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-controller;
+ #interrupt-cells = <1>;
+
+ iommus = <&apps_smmu 0x820 0x2>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ display-controller@5e01000 {
+ compatible = "qcom,sm6375-dpu";
+ reg = <0x05e01000 0x8e030>,
+ <0x05eb0000 0x2008>;
+ reg-names = "mdp", "vbif";
+
+ clocks = <&gcc GCC_DISP_HF_AXI_CLK>,
+ <&dispcc DISP_CC_MDSS_AHB_CLK>,
+ <&dispcc DISP_CC_MDSS_ROT_CLK>,
+ <&dispcc DISP_CC_MDSS_MDP_LUT_CLK>,
+ <&dispcc DISP_CC_MDSS_MDP_CLK>,
+ <&dispcc DISP_CC_MDSS_VSYNC_CLK>,
+ <&gcc GCC_DISP_THROTTLE_CORE_CLK>;
+ clock-names = "bus",
+ "iface",
+ "rot",
+ "lut",
+ "core",
+ "vsync",
+ "throttle";
+
+ assigned-clocks = <&dispcc DISP_CC_MDSS_VSYNC_CLK>;
+ assigned-clock-rates = <19200000>;
+
+ operating-points-v2 = <&mdp_opp_table>;
+ power-domains = <&rpmpd SM6375_VDDCX>;
+
+ interrupt-parent = <&mdss>;
+ interrupts = <0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ dpu_intf1_out: endpoint {
+ remote-endpoint = <&dsi0_in>;
+ };
+ };
+ };
+ };
+
+ dsi@5e94000 {
+ compatible = "qcom,sm6375-dsi-ctrl", "qcom,mdss-dsi-ctrl";
+ reg = <0x05e94000 0x400>;
+ reg-names = "dsi_ctrl";
+
+ interrupt-parent = <&mdss>;
+ interrupts = <4>;
+
+ clocks = <&dispcc DISP_CC_MDSS_BYTE0_CLK>,
+ <&dispcc DISP_CC_MDSS_BYTE0_INTF_CLK>,
+ <&dispcc DISP_CC_MDSS_PCLK0_CLK>,
+ <&dispcc DISP_CC_MDSS_ESC0_CLK>,
+ <&dispcc DISP_CC_MDSS_AHB_CLK>,
+ <&gcc GCC_DISP_HF_AXI_CLK>;
+ clock-names = "byte",
+ "byte_intf",
+ "pixel",
+ "core",
+ "iface",
+ "bus";
+
+ assigned-clocks = <&dispcc DISP_CC_MDSS_BYTE0_CLK_SRC>,
+ <&dispcc DISP_CC_MDSS_PCLK0_CLK_SRC>;
+ assigned-clock-parents = <&mdss_dsi0_phy 0>, <&mdss_dsi0_phy 1>;
+
+ operating-points-v2 = <&dsi_opp_table>;
+ power-domains = <&rpmpd SM6375_VDDMX>;
+
+ phys = <&mdss_dsi0_phy>;
+ phy-names = "dsi";
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ dsi0_in: endpoint {
+ remote-endpoint = <&dpu_intf1_out>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ dsi0_out: endpoint {
+ };
+ };
+ };
+ };
+
+ mdss_dsi0_phy: phy@5e94400 {
+ compatible = "qcom,sm6375-dsi-phy-7nm";
+ reg = <0x05e94400 0x200>,
+ <0x05e94600 0x280>,
+ <0x05e94900 0x264>;
+ reg-names = "dsi_phy",
+ "dsi_phy_lane",
+ "dsi_pll";
+
+ #clock-cells = <1>;
+ #phy-cells = <0>;
+
+ clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
+ <&rpmcc RPM_SMD_XO_CLK_SRC>;
+ clock-names = "iface", "ref";
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sm7150-dpu.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sm7150-dpu.yaml
new file mode 100644
index 000000000000..c79b2d442800
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/msm/qcom,sm7150-dpu.yaml
@@ -0,0 +1,143 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/msm/qcom,sm7150-dpu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm SM7150 Display Processing Unit (DPU)
+
+maintainers:
+ - Danila Tikhonov <danila@jiaxyga.com>
+
+$ref: /schemas/display/msm/dpu-common.yaml#
+
+properties:
+ compatible:
+ const: qcom,sm7150-dpu
+
+ reg:
+ items:
+ - description: Address offset and size for mdp register set
+ - description: Address offset and size for vbif register set
+
+ reg-names:
+ items:
+ - const: mdp
+ - const: vbif
+
+ clocks:
+ items:
+ - description: Display hf axi clock
+ - description: Display ahb clock
+ - description: Display rotator clock
+ - description: Display lut clock
+ - description: Display core clock
+ - description: Display vsync clock
+
+ clock-names:
+ items:
+ - const: bus
+ - const: iface
+ - const: rot
+ - const: lut
+ - const: core
+ - const: vsync
+
+required:
+ - compatible
+ - reg
+ - reg-names
+ - clocks
+ - clock-names
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/power/qcom,rpmhpd.h>
+
+ display-controller@ae01000 {
+ compatible = "qcom,sm7150-dpu";
+ reg = <0x0ae01000 0x8f000>,
+ <0x0aeb0000 0x2008>;
+ reg-names = "mdp", "vbif";
+
+ clocks = <&gcc_disp_hf_axi_clk>,
+ <&dispcc_mdss_ahb_clk>,
+ <&dispcc_mdss_rot_clk>,
+ <&dispcc_mdss_mdp_lut_clk>,
+ <&dispcc_mdss_mdp_clk>,
+ <&dispcc_mdss_vsync_clk>;
+ clock-names = "bus",
+ "iface",
+ "rot",
+ "lut",
+ "core",
+ "vsync";
+
+ assigned-clocks = <&dispcc_mdss_vsync_clk>;
+ assigned-clock-rates = <19200000>;
+
+ operating-points-v2 = <&mdp_opp_table>;
+ power-domains = <&rpmhpd RPMHPD_CX>;
+
+ interrupt-parent = <&mdss>;
+ interrupts = <0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ dpu_intf1_out: endpoint {
+ remote-endpoint = <&mdss_dsi0_in>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ dpu_intf2_out: endpoint {
+ remote-endpoint = <&mdss_dsi1_in>;
+ };
+ };
+
+ port@2 {
+ reg = <2>;
+ dpu_intf0_out: endpoint {
+ remote-endpoint = <&dp_in>;
+ };
+ };
+ };
+
+ mdp_opp_table: opp-table {
+ compatible = "operating-points-v2";
+
+ opp-19200000 {
+ opp-hz = /bits/ 64 <19200000>;
+ required-opps = <&rpmhpd_opp_min_svs>;
+ };
+
+ opp-200000000 {
+ opp-hz = /bits/ 64 <200000000>;
+ required-opps = <&rpmhpd_opp_low_svs>;
+ };
+
+ opp-300000000 {
+ opp-hz = /bits/ 64 <300000000>;
+ required-opps = <&rpmhpd_opp_svs>;
+ };
+
+ opp-344000000 {
+ opp-hz = /bits/ 64 <344000000>;
+ required-opps = <&rpmhpd_opp_svs_l1>;
+ };
+
+ opp-430000000 {
+ opp-hz = /bits/ 64 <430000000>;
+ required-opps = <&rpmhpd_opp_nom>;
+ };
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sm7150-mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sm7150-mdss.yaml
new file mode 100644
index 000000000000..9b0621d88d50
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/msm/qcom,sm7150-mdss.yaml
@@ -0,0 +1,464 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/msm/qcom,sm7150-mdss.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm SM7150 Display MDSS
+
+maintainers:
+ - Danila Tikhonov <danila@jiaxyga.com>
+
+description:
+ SM7150 MSM Mobile Display Subsystem(MDSS), which encapsulates sub-blocks like
+ DPU display controller, DSI and DP interfaces etc.
+
+$ref: /schemas/display/msm/mdss-common.yaml#
+
+properties:
+ compatible:
+ const: qcom,sm7150-mdss
+
+ clocks:
+ items:
+ - description: Display ahb clock from gcc
+ - description: Display hf axi clock
+ - description: Display sf axi clock
+ - description: Display core clock
+
+ clock-names:
+ items:
+ - const: iface
+ - const: bus
+ - const: nrt_bus
+ - const: core
+
+ iommus:
+ maxItems: 1
+
+ interconnects:
+ items:
+ - description: Interconnect path from mdp0 port to the data bus
+ - description: Interconnect path from mdp1 port to the data bus
+ - description: Interconnect path from CPU to the reg bus
+
+ interconnect-names:
+ items:
+ - const: mdp0-mem
+ - const: mdp1-mem
+ - const: cpu-cfg
+
+patternProperties:
+ "^display-controller@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+ properties:
+ compatible:
+ const: qcom,sm7150-dpu
+
+ "^displayport-controller@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+ properties:
+ compatible:
+ contains:
+ const: qcom,sm7150-dp
+
+ "^dsi@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+ properties:
+ compatible:
+ items:
+ - const: qcom,sm7150-dsi-ctrl
+ - const: qcom,mdss-dsi-ctrl
+
+ "^phy@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+ properties:
+ compatible:
+ const: qcom,dsi-phy-10nm
+
+required:
+ - compatible
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,rpmh.h>
+ #include <dt-bindings/interconnect/qcom,icc.h>
+ #include <dt-bindings/interconnect/qcom,sm7150-rpmh.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/power/qcom,rpmhpd.h>
+
+ display-subsystem@ae00000 {
+ compatible = "qcom,sm7150-mdss";
+ reg = <0x0ae00000 0x1000>;
+ reg-names = "mdss";
+
+ power-domains = <&dispcc_mdss_gdsc>;
+
+ clocks = <&dispcc_mdss_ahb_clk>,
+ <&gcc_disp_hf_axi_clk>,
+ <&gcc_disp_sf_axi_clk>,
+ <&dispcc_mdss_mdp_clk>;
+ clock-names = "iface",
+ "bus",
+ "nrt_bus",
+ "core";
+
+ interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-controller;
+ #interrupt-cells = <1>;
+
+ interconnects = <&mmss_noc MASTER_MDP_PORT0 QCOM_ICC_TAG_ALWAYS
+ &mc_virt SLAVE_EBI_CH0 QCOM_ICC_TAG_ALWAYS>,
+ <&mmss_noc MASTER_MDP_PORT1 QCOM_ICC_TAG_ALWAYS
+ &mc_virt SLAVE_EBI_CH0 QCOM_ICC_TAG_ALWAYS>,
+ <&gem_noc MASTER_AMPSS_M0 QCOM_ICC_TAG_ACTIVE_ONLY
+ &config_noc SLAVE_DISPLAY_CFG QCOM_ICC_TAG_ACTIVE_ONLY>;
+ interconnect-names = "mdp0-mem",
+ "mdp1-mem",
+ "cpu-cfg";
+
+ iommus = <&apps_smmu 0x800 0x440>;
+
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ display-controller@ae01000 {
+ compatible = "qcom,sm7150-dpu";
+ reg = <0x0ae01000 0x8f000>,
+ <0x0aeb0000 0x2008>;
+ reg-names = "mdp", "vbif";
+
+ clocks = <&gcc_disp_hf_axi_clk>,
+ <&dispcc_mdss_ahb_clk>,
+ <&dispcc_mdss_rot_clk>,
+ <&dispcc_mdss_mdp_lut_clk>,
+ <&dispcc_mdss_mdp_clk>,
+ <&dispcc_mdss_vsync_clk>;
+ clock-names = "bus",
+ "iface",
+ "rot",
+ "lut",
+ "core",
+ "vsync";
+
+ assigned-clocks = <&dispcc_mdss_vsync_clk>;
+ assigned-clock-rates = <19200000>;
+
+ operating-points-v2 = <&mdp_opp_table>;
+ power-domains = <&rpmhpd RPMHPD_CX>;
+
+ interrupt-parent = <&mdss>;
+ interrupts = <0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ dpu_intf1_out: endpoint {
+ remote-endpoint = <&mdss_dsi0_in>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ dpu_intf2_out: endpoint {
+ remote-endpoint = <&mdss_dsi1_in>;
+ };
+ };
+
+ port@2 {
+ reg = <2>;
+ dpu_intf0_out: endpoint {
+ remote-endpoint = <&dp_in>;
+ };
+ };
+ };
+
+ mdp_opp_table: opp-table {
+ compatible = "operating-points-v2";
+
+ opp-19200000 {
+ opp-hz = /bits/ 64 <19200000>;
+ required-opps = <&rpmhpd_opp_min_svs>;
+ };
+
+ opp-200000000 {
+ opp-hz = /bits/ 64 <200000000>;
+ required-opps = <&rpmhpd_opp_low_svs>;
+ };
+
+ opp-300000000 {
+ opp-hz = /bits/ 64 <300000000>;
+ required-opps = <&rpmhpd_opp_svs>;
+ };
+
+ opp-344000000 {
+ opp-hz = /bits/ 64 <344000000>;
+ required-opps = <&rpmhpd_opp_svs_l1>;
+ };
+
+ opp-430000000 {
+ opp-hz = /bits/ 64 <430000000>;
+ required-opps = <&rpmhpd_opp_nom>;
+ };
+ };
+ };
+
+ dsi@ae94000 {
+ compatible = "qcom,sm7150-dsi-ctrl",
+ "qcom,mdss-dsi-ctrl";
+ reg = <0x0ae94000 0x400>;
+ reg-names = "dsi_ctrl";
+
+ interrupt-parent = <&mdss>;
+ interrupts = <4>;
+
+ clocks = <&dispcc_mdss_byte0_clk>,
+ <&dispcc_mdss_byte0_intf_clk>,
+ <&dispcc_mdss_pclk0_clk>,
+ <&dispcc_mdss_esc0_clk>,
+ <&dispcc_mdss_ahb_clk>,
+ <&gcc_disp_hf_axi_clk>;
+ clock-names = "byte",
+ "byte_intf",
+ "pixel",
+ "core",
+ "iface",
+ "bus";
+
+ assigned-clocks = <&dispcc_mdss_byte0_clk_src>,
+ <&dispcc_mdss_pclk0_clk_src>;
+ assigned-clock-parents = <&mdss_dsi0_phy 0>,
+ <&mdss_dsi0_phy 1>;
+
+ operating-points-v2 = <&dsi_opp_table>;
+ power-domains = <&rpmhpd RPMHPD_CX>;
+
+ phys = <&mdss_dsi0_phy>;
+ phy-names = "dsi";
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ mdss_dsi0_in: endpoint {
+ remote-endpoint = <&dpu_intf1_out>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ mdss_dsi0_out: endpoint {
+ };
+ };
+ };
+
+ dsi_opp_table: opp-table {
+ compatible = "operating-points-v2";
+
+ opp-180000000 {
+ opp-hz = /bits/ 64 <180000000>;
+ required-opps = <&rpmhpd_opp_low_svs>;
+ };
+
+ opp-275000000 {
+ opp-hz = /bits/ 64 <275000000>;
+ required-opps = <&rpmhpd_opp_svs>;
+ };
+
+ opp-358000000 {
+ opp-hz = /bits/ 64 <358000000>;
+ required-opps = <&rpmhpd_opp_svs_l1>;
+ };
+ };
+ };
+
+ mdss_dsi0_phy: phy@ae94400 {
+ compatible = "qcom,dsi-phy-10nm";
+ reg = <0x0ae94400 0x200>,
+ <0x0ae94600 0x280>,
+ <0x0ae94a00 0x1e0>;
+ reg-names = "dsi_phy",
+ "dsi_phy_lane",
+ "dsi_pll";
+
+ #clock-cells = <1>;
+ #phy-cells = <0>;
+
+ clocks = <&dispcc_mdss_ahb_clk>,
+ <&rpmhcc RPMH_CXO_CLK>;
+ clock-names = "iface", "ref";
+ vdds-supply = <&vdda_mipi_dsi0_pll>;
+ };
+
+ dsi@ae96000 {
+ compatible = "qcom,sm7150-dsi-ctrl",
+ "qcom,mdss-dsi-ctrl";
+ reg = <0x0ae96000 0x400>;
+ reg-names = "dsi_ctrl";
+
+ interrupt-parent = <&mdss>;
+ interrupts = <5>;
+
+ clocks = <&dispcc_mdss_byte1_clk>,
+ <&dispcc_mdss_byte1_intf_clk>,
+ <&dispcc_mdss_pclk1_clk>,
+ <&dispcc_mdss_esc1_clk>,
+ <&dispcc_mdss_ahb_clk>,
+ <&gcc_disp_hf_axi_clk>;
+ clock-names = "byte",
+ "byte_intf",
+ "pixel",
+ "core",
+ "iface",
+ "bus";
+
+ assigned-clocks = <&dispcc_mdss_byte1_clk_src>,
+ <&dispcc_mdss_pclk1_clk_src>;
+ assigned-clock-parents = <&mdss_dsi1_phy 0>,
+ <&mdss_dsi1_phy 1>;
+
+ operating-points-v2 = <&dsi_opp_table>;
+ power-domains = <&rpmhpd RPMHPD_CX>;
+
+ phys = <&mdss_dsi1_phy>;
+ phy-names = "dsi";
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ mdss_dsi1_in: endpoint {
+ remote-endpoint = <&dpu_intf2_out>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ mdss_dsi1_out: endpoint {
+ };
+ };
+ };
+ };
+
+ mdss_dsi1_phy: phy@ae96400 {
+ compatible = "qcom,dsi-phy-10nm";
+ reg = <0x0ae96400 0x200>,
+ <0x0ae96600 0x280>,
+ <0x0ae96a00 0x1e0>;
+ reg-names = "dsi_phy",
+ "dsi_phy_lane",
+ "dsi_pll";
+
+ #clock-cells = <1>;
+ #phy-cells = <0>;
+
+ clocks = <&dispcc_mdss_ahb_clk>,
+ <&rpmhcc RPMH_CXO_CLK>;
+ clock-names = "iface", "ref";
+ vdds-supply = <&vdda_mipi_dsi1_pll>;
+ };
+
+ displayport-controller@ae90000 {
+ compatible = "qcom,sm7150-dp",
+ "qcom,sm8350-dp";
+ reg = <0xae90000 0x200>,
+ <0xae90200 0x200>,
+ <0xae90400 0xc00>,
+ <0xae91000 0x400>,
+ <0xae91400 0x400>;
+
+ interrupt-parent = <&mdss>;
+ interrupts = <12>;
+
+ clocks = <&dispcc_mdss_ahb_clk>,
+ <&dispcc_mdss_dp_aux_clk>,
+ <&dispcc_mdss_dp_link_clk>,
+ <&dispcc_mdss_dp_link_intf_clk>,
+ <&dispcc_mdss_dp_pixel_clk>,
+ <&dispcc_mdss_dp_pixel1_clk>;
+ clock-names = "core_iface",
+ "core_aux",
+ "ctrl_link",
+ "ctrl_link_iface",
+ "stream_pixel",
+ "stream_1_pixel";
+
+ assigned-clocks = <&dispcc_mdss_dp_link_clk_src>,
+ <&dispcc_mdss_dp_pixel_clk_src>,
+ <&dispcc_mdss_dp_pixel1_clk_src>;
+ assigned-clock-parents = <&dp_phy 0>,
+ <&dp_phy 1>,
+ <&dp_phy 1>;
+
+ operating-points-v2 = <&dp_opp_table>;
+ power-domains = <&rpmhpd RPMHPD_CX>;
+
+ phys = <&dp_phy>;
+ phy-names = "dp";
+
+ #sound-dai-cells = <0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ dp_in: endpoint {
+ remote-endpoint = <&dpu_intf0_out>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ dp_out: endpoint {
+ };
+ };
+ };
+
+ dp_opp_table: opp-table {
+ compatible = "operating-points-v2";
+
+ opp-160000000 {
+ opp-hz = /bits/ 64 <160000000>;
+ required-opps = <&rpmhpd_opp_low_svs>;
+ };
+
+ opp-270000000 {
+ opp-hz = /bits/ 64 <270000000>;
+ required-opps = <&rpmhpd_opp_svs>;
+ };
+
+ opp-540000000 {
+ opp-hz = /bits/ 64 <540000000>;
+ required-opps = <&rpmhpd_opp_svs_l1>;
+ };
+
+ opp-810000000 {
+ opp-hz = /bits/ 64 <810000000>;
+ required-opps = <&rpmhpd_opp_nom>;
+ };
+ };
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sm8150-dpu.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sm8150-dpu.yaml
index 2b3f3fe9bdf7..a88d22f30a60 100644
--- a/Documentation/devicetree/bindings/display/msm/qcom,sm8150-dpu.yaml
+++ b/Documentation/devicetree/bindings/display/msm/qcom,sm8150-dpu.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/msm/qcom,sm8150-dpu.yaml#
@@ -13,7 +13,9 @@ $ref: /schemas/display/msm/dpu-common.yaml#
properties:
compatible:
- const: qcom,sm8150-dpu
+ enum:
+ - qcom,sm8150-dpu
+ - qcom,sm8250-dpu
reg:
items:
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sm8150-mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sm8150-mdss.yaml
index 5182e958e069..e6dc5494baee 100644
--- a/Documentation/devicetree/bindings/display/msm/qcom,sm8150-mdss.yaml
+++ b/Documentation/devicetree/bindings/display/msm/qcom,sm8150-mdss.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/msm/qcom,sm8150-mdss.yaml#
@@ -47,12 +47,25 @@ properties:
patternProperties:
"^display-controller@[0-9a-f]+$":
type: object
+ additionalProperties: true
+
properties:
compatible:
const: qcom,sm8150-dpu
+ "^displayport-controller@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ contains:
+ const: qcom,sm8150-dp
+
"^dsi@[0-9a-f]+$":
type: object
+ additionalProperties: true
+
properties:
compatible:
items:
@@ -61,9 +74,11 @@ patternProperties:
"^phy@[0-9a-f]+$":
type: object
+ additionalProperties: true
+
properties:
compatible:
- const: qcom,dsi-phy-7nm
+ const: qcom,dsi-phy-7nm-8150
unevaluatedProperties: false
@@ -241,7 +256,7 @@ examples:
};
dsi0_phy: phy@ae94400 {
- compatible = "qcom,dsi-phy-7nm";
+ compatible = "qcom,dsi-phy-7nm-8150";
reg = <0x0ae94400 0x200>,
<0x0ae94600 0x280>,
<0x0ae94900 0x260>;
@@ -312,7 +327,7 @@ examples:
};
dsi1_phy: phy@ae96400 {
- compatible = "qcom,dsi-phy-7nm";
+ compatible = "qcom,dsi-phy-7nm-8150";
reg = <0x0ae96400 0x200>,
<0x0ae96600 0x280>,
<0x0ae96900 0x260>;
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sm8250-dpu.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sm8250-dpu.yaml
deleted file mode 100644
index 687c8c170cd4..000000000000
--- a/Documentation/devicetree/bindings/display/msm/qcom,sm8250-dpu.yaml
+++ /dev/null
@@ -1,99 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
-%YAML 1.2
----
-$id: http://devicetree.org/schemas/display/msm/qcom,sm8250-dpu.yaml#
-$schema: http://devicetree.org/meta-schemas/core.yaml#
-
-title: Qualcomm SM8250 Display DPU
-
-maintainers:
- - Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
-
-$ref: /schemas/display/msm/dpu-common.yaml#
-
-properties:
- compatible:
- const: qcom,sm8250-dpu
-
- reg:
- items:
- - description: Address offset and size for mdp register set
- - description: Address offset and size for vbif register set
-
- reg-names:
- items:
- - const: mdp
- - const: vbif
-
- clocks:
- items:
- - description: Display ahb clock
- - description: Display hf axi clock
- - description: Display core clock
- - description: Display vsync clock
-
- clock-names:
- items:
- - const: iface
- - const: bus
- - const: core
- - const: vsync
-
-required:
- - compatible
- - reg
- - reg-names
- - clocks
- - clock-names
-
-unevaluatedProperties: false
-
-examples:
- - |
- #include <dt-bindings/clock/qcom,dispcc-sm8250.h>
- #include <dt-bindings/clock/qcom,gcc-sm8250.h>
- #include <dt-bindings/interrupt-controller/arm-gic.h>
- #include <dt-bindings/interconnect/qcom,sm8250.h>
- #include <dt-bindings/power/qcom-rpmpd.h>
-
- display-controller@ae01000 {
- compatible = "qcom,sm8250-dpu";
- reg = <0x0ae01000 0x8f000>,
- <0x0aeb0000 0x2008>;
- reg-names = "mdp", "vbif";
-
- clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
- <&gcc GCC_DISP_HF_AXI_CLK>,
- <&dispcc DISP_CC_MDSS_MDP_CLK>,
- <&dispcc DISP_CC_MDSS_VSYNC_CLK>;
- clock-names = "iface", "bus", "core", "vsync";
-
- assigned-clocks = <&dispcc DISP_CC_MDSS_VSYNC_CLK>;
- assigned-clock-rates = <19200000>;
-
- operating-points-v2 = <&mdp_opp_table>;
- power-domains = <&rpmhpd SM8250_MMCX>;
-
- interrupt-parent = <&mdss>;
- interrupts = <0>;
-
- ports {
- #address-cells = <1>;
- #size-cells = <0>;
-
- port@0 {
- reg = <0>;
- endpoint {
- remote-endpoint = <&dsi0_in>;
- };
- };
-
- port@1 {
- reg = <1>;
- endpoint {
- remote-endpoint = <&dsi1_in>;
- };
- };
- };
- };
-...
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sm8250-mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sm8250-mdss.yaml
index 368d3db0ce96..51368cda7b2f 100644
--- a/Documentation/devicetree/bindings/display/msm/qcom,sm8250-mdss.yaml
+++ b/Documentation/devicetree/bindings/display/msm/qcom,sm8250-mdss.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/msm/qcom,sm8250-mdss.yaml#
@@ -46,12 +46,26 @@ properties:
patternProperties:
"^display-controller@[0-9a-f]+$":
type: object
+ additionalProperties: true
+
properties:
compatible:
const: qcom,sm8250-dpu
+ "^displayport-controller@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ items:
+ - const: qcom,sm8250-dp
+ - const: qcom,sm8350-dp
+
"^dsi@[0-9a-f]+$":
type: object
+ additionalProperties: true
+
properties:
compatible:
items:
@@ -60,6 +74,8 @@ patternProperties:
"^phy@[0-9a-f]+$":
type: object
+ additionalProperties: true
+
properties:
compatible:
const: qcom,dsi-phy-7nm
@@ -76,7 +92,7 @@ examples:
#include <dt-bindings/clock/qcom,rpmh.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/interconnect/qcom,sm8250.h>
- #include <dt-bindings/power/qcom-rpmpd.h>
+ #include <dt-bindings/power/qcom,rpmhpd.h>
display-subsystem@ae00000 {
compatible = "qcom,sm8250-mdss";
@@ -121,7 +137,7 @@ examples:
assigned-clock-rates = <19200000>;
operating-points-v2 = <&mdp_opp_table>;
- power-domains = <&rpmhpd SM8250_MMCX>;
+ power-domains = <&rpmhpd RPMHPD_MMCX>;
interrupt-parent = <&mdss>;
interrupts = <0>;
@@ -196,7 +212,7 @@ examples:
assigned-clock-parents = <&dsi0_phy 0>, <&dsi0_phy 1>;
operating-points-v2 = <&dsi_opp_table>;
- power-domains = <&rpmhpd SM8250_MMCX>;
+ power-domains = <&rpmhpd RPMHPD_MMCX>;
phys = <&dsi0_phy>;
phy-names = "dsi";
@@ -286,7 +302,7 @@ examples:
assigned-clock-parents = <&dsi1_phy 0>, <&dsi1_phy 1>;
operating-points-v2 = <&dsi_opp_table>;
- power-domains = <&rpmhpd SM8250_MMCX>;
+ power-domains = <&rpmhpd RPMHPD_MMCX>;
phys = <&dsi1_phy>;
phy-names = "dsi";
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sm8350-dpu.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sm8350-dpu.yaml
deleted file mode 100644
index 120500395c9a..000000000000
--- a/Documentation/devicetree/bindings/display/msm/qcom,sm8350-dpu.yaml
+++ /dev/null
@@ -1,120 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
-%YAML 1.2
----
-$id: http://devicetree.org/schemas/display/msm/qcom,sm8350-dpu.yaml#
-$schema: http://devicetree.org/meta-schemas/core.yaml#
-
-title: Qualcomm SM8350 Display DPU
-
-maintainers:
- - Robert Foss <robert.foss@linaro.org>
-
-$ref: /schemas/display/msm/dpu-common.yaml#
-
-properties:
- compatible:
- const: qcom,sm8350-dpu
-
- reg:
- items:
- - description: Address offset and size for mdp register set
- - description: Address offset and size for vbif register set
-
- reg-names:
- items:
- - const: mdp
- - const: vbif
-
- clocks:
- items:
- - description: Display hf axi clock
- - description: Display sf axi clock
- - description: Display ahb clock
- - description: Display lut clock
- - description: Display core clock
- - description: Display vsync clock
-
- clock-names:
- items:
- - const: bus
- - const: nrt_bus
- - const: iface
- - const: lut
- - const: core
- - const: vsync
-
-unevaluatedProperties: false
-
-examples:
- - |
- #include <dt-bindings/clock/qcom,dispcc-sm8350.h>
- #include <dt-bindings/clock/qcom,gcc-sm8350.h>
- #include <dt-bindings/interrupt-controller/arm-gic.h>
- #include <dt-bindings/interconnect/qcom,sm8350.h>
- #include <dt-bindings/power/qcom-rpmpd.h>
-
- display-controller@ae01000 {
- compatible = "qcom,sm8350-dpu";
- reg = <0x0ae01000 0x8f000>,
- <0x0aeb0000 0x2008>;
- reg-names = "mdp", "vbif";
-
- clocks = <&gcc GCC_DISP_HF_AXI_CLK>,
- <&gcc GCC_DISP_SF_AXI_CLK>,
- <&dispcc DISP_CC_MDSS_AHB_CLK>,
- <&dispcc DISP_CC_MDSS_MDP_LUT_CLK>,
- <&dispcc DISP_CC_MDSS_MDP_CLK>,
- <&dispcc DISP_CC_MDSS_VSYNC_CLK>;
- clock-names = "bus",
- "nrt_bus",
- "iface",
- "lut",
- "core",
- "vsync";
-
- assigned-clocks = <&dispcc DISP_CC_MDSS_VSYNC_CLK>;
- assigned-clock-rates = <19200000>;
-
- operating-points-v2 = <&mdp_opp_table>;
- power-domains = <&rpmhpd SM8350_MMCX>;
-
- interrupt-parent = <&mdss>;
- interrupts = <0>;
-
- ports {
- #address-cells = <1>;
- #size-cells = <0>;
-
- port@0 {
- reg = <0>;
- dpu_intf1_out: endpoint {
- remote-endpoint = <&dsi0_in>;
- };
- };
- };
-
- mdp_opp_table: opp-table {
- compatible = "operating-points-v2";
-
- opp-200000000 {
- opp-hz = /bits/ 64 <200000000>;
- required-opps = <&rpmhpd_opp_low_svs>;
- };
-
- opp-300000000 {
- opp-hz = /bits/ 64 <300000000>;
- required-opps = <&rpmhpd_opp_svs>;
- };
-
- opp-345000000 {
- opp-hz = /bits/ 64 <345000000>;
- required-opps = <&rpmhpd_opp_svs_l1>;
- };
-
- opp-460000000 {
- opp-hz = /bits/ 64 <460000000>;
- required-opps = <&rpmhpd_opp_nom>;
- };
- };
- };
-...
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sm8350-mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sm8350-mdss.yaml
index 4d94dbff3054..68176de854b3 100644
--- a/Documentation/devicetree/bindings/display/msm/qcom,sm8350-mdss.yaml
+++ b/Documentation/devicetree/bindings/display/msm/qcom,sm8350-mdss.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/msm/qcom,sm8350-mdss.yaml#
@@ -38,22 +38,38 @@ properties:
maxItems: 1
interconnects:
- maxItems: 2
+ items:
+ - description: Interconnect path from the MDP0 port to the data bus
+ - description: Interconnect path from the MDP1 port to the data bus
+ - description: Interconnect path from the CPU to the reg bus
interconnect-names:
items:
- const: mdp0-mem
- const: mdp1-mem
+ - const: cpu-cfg
patternProperties:
"^display-controller@[0-9a-f]+$":
type: object
+ additionalProperties: true
+
properties:
compatible:
const: qcom,sm8350-dpu
+ "^displayport-controller@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ const: qcom,sm8350-dp
+
"^dsi@[0-9a-f]+$":
type: object
+ additionalProperties: true
+
properties:
compatible:
items:
@@ -62,9 +78,11 @@ patternProperties:
"^phy@[0-9a-f]+$":
type: object
+ additionalProperties: true
+
properties:
compatible:
- const: qcom,dsi-phy-5nm-8350
+ const: qcom,sm8350-dsi-phy-5nm
unevaluatedProperties: false
@@ -74,8 +92,9 @@ examples:
#include <dt-bindings/clock/qcom,gcc-sm8350.h>
#include <dt-bindings/clock/qcom,rpmh.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/interconnect/qcom,icc.h>
#include <dt-bindings/interconnect/qcom,sm8350.h>
- #include <dt-bindings/power/qcom-rpmpd.h>
+ #include <dt-bindings/power/qcom,rpmhpd.h>
display-subsystem@ae00000 {
compatible = "qcom,sm8350-mdss";
@@ -83,8 +102,10 @@ examples:
reg-names = "mdss";
interconnects = <&mmss_noc MASTER_MDP0 0 &mc_virt SLAVE_EBI1 0>,
- <&mmss_noc MASTER_MDP1 0 &mc_virt SLAVE_EBI1 0>;
- interconnect-names = "mdp0-mem", "mdp1-mem";
+ <&mmss_noc MASTER_MDP1 0 &mc_virt SLAVE_EBI1 0>,
+ <&gem_noc MASTER_APPSS_PROC QCOM_ICC_TAG_ACTIVE_ONLY
+ &config_noc SLAVE_DISPLAY_CFG QCOM_ICC_TAG_ACTIVE_ONLY>;
+ interconnect-names = "mdp0-mem", "mdp1-mem", "cpu-cfg";
power-domains = <&dispcc MDSS_GDSC>;
resets = <&dispcc DISP_CC_MDSS_CORE_BCR>;
@@ -128,7 +149,7 @@ examples:
assigned-clock-rates = <19200000>;
operating-points-v2 = <&mdp_opp_table>;
- power-domains = <&rpmhpd SM8350_MMCX>;
+ power-domains = <&rpmhpd RPMHPD_MMCX>;
interrupt-parent = <&mdss>;
interrupts = <0>;
@@ -197,7 +218,7 @@ examples:
<&mdss_dsi0_phy 1>;
operating-points-v2 = <&dsi_opp_table>;
- power-domains = <&rpmhpd SM8350_MMCX>;
+ power-domains = <&rpmhpd RPMHPD_MMCX>;
phys = <&mdss_dsi0_phy>;
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sm8450-dpu.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sm8450-dpu.yaml
deleted file mode 100644
index 0d17ece1c453..000000000000
--- a/Documentation/devicetree/bindings/display/msm/qcom,sm8450-dpu.yaml
+++ /dev/null
@@ -1,139 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
-%YAML 1.2
----
-$id: http://devicetree.org/schemas/display/msm/qcom,sm8450-dpu.yaml#
-$schema: http://devicetree.org/meta-schemas/core.yaml#
-
-title: Qualcomm SM8450 Display DPU
-
-maintainers:
- - Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
-
-$ref: /schemas/display/msm/dpu-common.yaml#
-
-properties:
- compatible:
- const: qcom,sm8450-dpu
-
- reg:
- items:
- - description: Address offset and size for mdp register set
- - description: Address offset and size for vbif register set
-
- reg-names:
- items:
- - const: mdp
- - const: vbif
-
- clocks:
- items:
- - description: Display hf axi
- - description: Display sf axi
- - description: Display ahb
- - description: Display lut
- - description: Display core
- - description: Display vsync
-
- clock-names:
- items:
- - const: bus
- - const: nrt_bus
- - const: iface
- - const: lut
- - const: core
- - const: vsync
-
-required:
- - compatible
- - reg
- - reg-names
- - clocks
- - clock-names
-
-unevaluatedProperties: false
-
-examples:
- - |
- #include <dt-bindings/clock/qcom,sm8450-dispcc.h>
- #include <dt-bindings/clock/qcom,gcc-sm8450.h>
- #include <dt-bindings/interrupt-controller/arm-gic.h>
- #include <dt-bindings/interconnect/qcom,sm8450.h>
- #include <dt-bindings/power/qcom-rpmpd.h>
-
- display-controller@ae01000 {
- compatible = "qcom,sm8450-dpu";
- reg = <0x0ae01000 0x8f000>,
- <0x0aeb0000 0x2008>;
- reg-names = "mdp", "vbif";
-
- clocks = <&gcc GCC_DISP_HF_AXI_CLK>,
- <&gcc GCC_DISP_SF_AXI_CLK>,
- <&dispcc DISP_CC_MDSS_AHB_CLK>,
- <&dispcc DISP_CC_MDSS_MDP_LUT_CLK>,
- <&dispcc DISP_CC_MDSS_MDP_CLK>,
- <&dispcc DISP_CC_MDSS_VSYNC_CLK>;
- clock-names = "bus",
- "nrt_bus",
- "iface",
- "lut",
- "core",
- "vsync";
-
- assigned-clocks = <&dispcc DISP_CC_MDSS_VSYNC_CLK>;
- assigned-clock-rates = <19200000>;
-
- operating-points-v2 = <&mdp_opp_table>;
- power-domains = <&rpmhpd SM8450_MMCX>;
-
- interrupt-parent = <&mdss>;
- interrupts = <0>;
-
- ports {
- #address-cells = <1>;
- #size-cells = <0>;
-
- port@0 {
- reg = <0>;
- dpu_intf1_out: endpoint {
- remote-endpoint = <&dsi0_in>;
- };
- };
-
- port@1 {
- reg = <1>;
- dpu_intf2_out: endpoint {
- remote-endpoint = <&dsi1_in>;
- };
- };
- };
-
- mdp_opp_table: opp-table {
- compatible = "operating-points-v2";
-
- opp-172000000{
- opp-hz = /bits/ 64 <172000000>;
- required-opps = <&rpmhpd_opp_low_svs_d1>;
- };
-
- opp-200000000 {
- opp-hz = /bits/ 64 <200000000>;
- required-opps = <&rpmhpd_opp_low_svs>;
- };
-
- opp-325000000 {
- opp-hz = /bits/ 64 <325000000>;
- required-opps = <&rpmhpd_opp_svs>;
- };
-
- opp-375000000 {
- opp-hz = /bits/ 64 <375000000>;
- required-opps = <&rpmhpd_opp_svs_l1>;
- };
-
- opp-500000000 {
- opp-hz = /bits/ 64 <500000000>;
- required-opps = <&rpmhpd_opp_nom>;
- };
- };
- };
-...
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sm8450-mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sm8450-mdss.yaml
index f26eb5643aed..747a2e9665f4 100644
--- a/Documentation/devicetree/bindings/display/msm/qcom,sm8450-mdss.yaml
+++ b/Documentation/devicetree/bindings/display/msm/qcom,sm8450-mdss.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/msm/qcom,sm8450-mdss.yaml#
@@ -30,20 +30,34 @@ properties:
maxItems: 1
interconnects:
- maxItems: 2
+ maxItems: 3
interconnect-names:
- maxItems: 2
+ maxItems: 3
patternProperties:
"^display-controller@[0-9a-f]+$":
type: object
+ additionalProperties: true
+
properties:
compatible:
const: qcom,sm8450-dpu
+ "^displayport-controller@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ items:
+ - const: qcom,sm8450-dp
+ - const: qcom,sm8350-dp
+
"^dsi@[0-9a-f]+$":
type: object
+ additionalProperties: true
+
properties:
compatible:
items:
@@ -52,6 +66,8 @@ patternProperties:
"^phy@[0-9a-f]+$":
type: object
+ additionalProperties: true
+
properties:
compatible:
const: qcom,sm8450-dsi-phy-5nm
@@ -68,16 +84,19 @@ examples:
#include <dt-bindings/clock/qcom,rpmh.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/interconnect/qcom,sm8450.h>
- #include <dt-bindings/power/qcom-rpmpd.h>
+ #include <dt-bindings/power/qcom,rpmhpd.h>
display-subsystem@ae00000 {
compatible = "qcom,sm8450-mdss";
reg = <0x0ae00000 0x1000>;
reg-names = "mdss";
- interconnects = <&mmss_noc MASTER_MDP_DISP 0 &mc_virt SLAVE_EBI1_DISP 0>,
- <&mmss_noc MASTER_MDP_DISP 0 &mc_virt SLAVE_EBI1_DISP 0>;
- interconnect-names = "mdp0-mem", "mdp1-mem";
+ interconnects = <&mmss_noc MASTER_MDP_DISP &mc_virt SLAVE_EBI1_DISP>,
+ <&mmss_noc MASTER_MDP_DISP &mc_virt SLAVE_EBI1_DISP>,
+ <&gem_noc MASTER_APPSS_PROC &config_noc SLAVE_DISPLAY_CFG>;
+ interconnect-names = "mdp0-mem",
+ "mdp1-mem",
+ "cpu-cfg";
resets = <&dispcc DISP_CC_MDSS_CORE_BCR>;
@@ -122,7 +141,7 @@ examples:
assigned-clock-rates = <19200000>;
operating-points-v2 = <&mdp_opp_table>;
- power-domains = <&rpmhpd SM8450_MMCX>;
+ power-domains = <&rpmhpd RPMHPD_MMCX>;
interrupt-parent = <&mdss>;
interrupts = <0>;
@@ -202,7 +221,7 @@ examples:
assigned-clock-parents = <&dsi0_phy 0>, <&dsi0_phy 1>;
operating-points-v2 = <&dsi_opp_table>;
- power-domains = <&rpmhpd SM8450_MMCX>;
+ power-domains = <&rpmhpd RPMHPD_MMCX>;
phys = <&dsi0_phy>;
phy-names = "dsi";
@@ -297,7 +316,7 @@ examples:
assigned-clock-parents = <&dsi1_phy 0>, <&dsi1_phy 1>;
operating-points-v2 = <&dsi_opp_table>;
- power-domains = <&rpmhpd SM8450_MMCX>;
+ power-domains = <&rpmhpd RPMHPD_MMCX>;
phys = <&dsi1_phy>;
phy-names = "dsi";
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sm8550-dpu.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sm8550-dpu.yaml
deleted file mode 100644
index ff58a747bb6f..000000000000
--- a/Documentation/devicetree/bindings/display/msm/qcom,sm8550-dpu.yaml
+++ /dev/null
@@ -1,133 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
-%YAML 1.2
----
-$id: http://devicetree.org/schemas/display/msm/qcom,sm8550-dpu.yaml#
-$schema: http://devicetree.org/meta-schemas/core.yaml#
-
-title: Qualcomm SM8550 Display DPU
-
-maintainers:
- - Neil Armstrong <neil.armstrong@linaro.org>
-
-$ref: /schemas/display/msm/dpu-common.yaml#
-
-properties:
- compatible:
- const: qcom,sm8550-dpu
-
- reg:
- items:
- - description: Address offset and size for mdp register set
- - description: Address offset and size for vbif register set
-
- reg-names:
- items:
- - const: mdp
- - const: vbif
-
- clocks:
- items:
- - description: Display AHB
- - description: Display hf axi
- - description: Display MDSS ahb
- - description: Display lut
- - description: Display core
- - description: Display vsync
-
- clock-names:
- items:
- - const: bus
- - const: nrt_bus
- - const: iface
- - const: lut
- - const: core
- - const: vsync
-
-required:
- - compatible
- - reg
- - reg-names
- - clocks
- - clock-names
-
-unevaluatedProperties: false
-
-examples:
- - |
- #include <dt-bindings/clock/qcom,sm8550-dispcc.h>
- #include <dt-bindings/clock/qcom,sm8550-gcc.h>
- #include <dt-bindings/interrupt-controller/arm-gic.h>
- #include <dt-bindings/power/qcom-rpmpd.h>
-
- display-controller@ae01000 {
- compatible = "qcom,sm8550-dpu";
- reg = <0x0ae01000 0x8f000>,
- <0x0aeb0000 0x2008>;
- reg-names = "mdp", "vbif";
-
- clocks = <&gcc GCC_DISP_AHB_CLK>,
- <&gcc GCC_DISP_HF_AXI_CLK>,
- <&dispcc DISP_CC_MDSS_AHB_CLK>,
- <&dispcc DISP_CC_MDSS_MDP_LUT_CLK>,
- <&dispcc DISP_CC_MDSS_MDP_CLK>,
- <&dispcc DISP_CC_MDSS_VSYNC_CLK>;
- clock-names = "bus",
- "nrt_bus",
- "iface",
- "lut",
- "core",
- "vsync";
-
- assigned-clocks = <&dispcc DISP_CC_MDSS_VSYNC_CLK>;
- assigned-clock-rates = <19200000>;
-
- operating-points-v2 = <&mdp_opp_table>;
- power-domains = <&rpmhpd SM8550_MMCX>;
-
- interrupt-parent = <&mdss>;
- interrupts = <0>;
-
- ports {
- #address-cells = <1>;
- #size-cells = <0>;
-
- port@0 {
- reg = <0>;
- dpu_intf1_out: endpoint {
- remote-endpoint = <&dsi0_in>;
- };
- };
-
- port@1 {
- reg = <1>;
- dpu_intf2_out: endpoint {
- remote-endpoint = <&dsi1_in>;
- };
- };
- };
-
- mdp_opp_table: opp-table {
- compatible = "operating-points-v2";
-
- opp-200000000 {
- opp-hz = /bits/ 64 <200000000>;
- required-opps = <&rpmhpd_opp_low_svs>;
- };
-
- opp-325000000 {
- opp-hz = /bits/ 64 <325000000>;
- required-opps = <&rpmhpd_opp_svs>;
- };
-
- opp-375000000 {
- opp-hz = /bits/ 64 <375000000>;
- required-opps = <&rpmhpd_opp_svs_l1>;
- };
-
- opp-514000000 {
- opp-hz = /bits/ 64 <514000000>;
- required-opps = <&rpmhpd_opp_nom>;
- };
- };
- };
-...
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sm8550-mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sm8550-mdss.yaml
index 887be33ba108..59192c59ddb9 100644
--- a/Documentation/devicetree/bindings/display/msm/qcom,sm8550-mdss.yaml
+++ b/Documentation/devicetree/bindings/display/msm/qcom,sm8550-mdss.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/msm/qcom,sm8550-mdss.yaml#
@@ -30,20 +30,38 @@ properties:
maxItems: 1
interconnects:
- maxItems: 2
+ items:
+ - description: Interconnect path from mdp0 port to the data bus
+ - description: Interconnect path from CPU to the reg bus
interconnect-names:
- maxItems: 2
+ items:
+ - const: mdp0-mem
+ - const: cpu-cfg
patternProperties:
"^display-controller@[0-9a-f]+$":
type: object
+ additionalProperties: true
+
properties:
compatible:
const: qcom,sm8550-dpu
+ "^displayport-controller@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+
+ properties:
+ compatible:
+ items:
+ - const: qcom,sm8550-dp
+ - const: qcom,sm8350-dp
+
"^dsi@[0-9a-f]+$":
type: object
+ additionalProperties: true
+
properties:
compatible:
items:
@@ -52,6 +70,8 @@ patternProperties:
"^phy@[0-9a-f]+$":
type: object
+ additionalProperties: true
+
properties:
compatible:
const: qcom,sm8550-dsi-phy-4nm
@@ -68,16 +88,16 @@ examples:
#include <dt-bindings/clock/qcom,rpmh.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/interconnect/qcom,sm8550-rpmh.h>
- #include <dt-bindings/power/qcom-rpmpd.h>
+ #include <dt-bindings/power/qcom,rpmhpd.h>
display-subsystem@ae00000 {
compatible = "qcom,sm8550-mdss";
reg = <0x0ae00000 0x1000>;
reg-names = "mdss";
- interconnects = <&mmss_noc MASTER_MDP 0 &gem_noc SLAVE_LLCC 0>,
- <&mc_virt MASTER_LLCC 0 &mc_virt SLAVE_EBI1 0>;
- interconnect-names = "mdp0-mem", "mdp1-mem";
+ interconnects = <&mmss_noc MASTER_MDP 0 &mc_virt SLAVE_EBI1 0>,
+ <&gem_noc MASTER_APPSS_PROC 0 &config_noc SLAVE_DISPLAY_CFG 0>;
+ interconnect-names = "mdp0-mem", "cpu-cfg";
resets = <&dispcc DISP_CC_MDSS_CORE_BCR>;
@@ -122,7 +142,7 @@ examples:
assigned-clock-rates = <19200000>;
operating-points-v2 = <&mdp_opp_table>;
- power-domains = <&rpmhpd SM8550_MMCX>;
+ power-domains = <&rpmhpd RPMHPD_MMCX>;
interrupt-parent = <&mdss>;
interrupts = <0>;
@@ -197,7 +217,7 @@ examples:
assigned-clock-parents = <&dsi0_phy 0>, <&dsi0_phy 1>;
operating-points-v2 = <&dsi_opp_table>;
- power-domains = <&rpmhpd SM8550_MMCX>;
+ power-domains = <&rpmhpd RPMHPD_MMCX>;
phys = <&dsi0_phy>;
phy-names = "dsi";
@@ -286,7 +306,7 @@ examples:
assigned-clock-parents = <&dsi1_phy 0>, <&dsi1_phy 1>;
operating-points-v2 = <&dsi_opp_table>;
- power-domains = <&rpmhpd SM8550_MMCX>;
+ power-domains = <&rpmhpd RPMHPD_MMCX>;
phys = <&dsi1_phy>;
phy-names = "dsi";
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sm8650-dpu.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sm8650-dpu.yaml
new file mode 100644
index 000000000000..fe296e3186d0
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/msm/qcom,sm8650-dpu.yaml
@@ -0,0 +1,137 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/msm/qcom,sm8650-dpu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm SM8650 Display DPU
+
+maintainers:
+ - Neil Armstrong <neil.armstrong@linaro.org>
+
+$ref: /schemas/display/msm/dpu-common.yaml#
+
+properties:
+ compatible:
+ oneOf:
+ - enum:
+ - qcom,glymur-dpu
+ - qcom,sa8775p-dpu
+ - qcom,sm8650-dpu
+ - qcom,sm8750-dpu
+ - qcom,x1e80100-dpu
+ - items:
+ - enum:
+ - qcom,qcs8300-dpu
+ - const: qcom,sa8775p-dpu
+
+ reg:
+ items:
+ - description: Address offset and size for mdp register set
+ - description: Address offset and size for vbif register set
+
+ reg-names:
+ items:
+ - const: mdp
+ - const: vbif
+
+ clocks:
+ items:
+ - description: Display hf axi
+ - description: Display MDSS ahb
+ - description: Display lut
+ - description: Display core
+ - description: Display vsync
+
+ clock-names:
+ items:
+ - const: nrt_bus
+ - const: iface
+ - const: lut
+ - const: core
+ - const: vsync
+
+required:
+ - compatible
+ - reg
+ - reg-names
+ - clocks
+ - clock-names
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/power/qcom,rpmhpd.h>
+
+ display-controller@ae01000 {
+ compatible = "qcom,sm8650-dpu";
+ reg = <0x0ae01000 0x8f000>,
+ <0x0aeb0000 0x2008>;
+ reg-names = "mdp", "vbif";
+
+ clocks = <&gcc_axi_clk>,
+ <&dispcc_ahb_clk>,
+ <&dispcc_mdp_lut_clk>,
+ <&dispcc_mdp_clk>,
+ <&dispcc_vsync_clk>;
+ clock-names = "nrt_bus",
+ "iface",
+ "lut",
+ "core",
+ "vsync";
+
+ assigned-clocks = <&dispcc_vsync_clk>;
+ assigned-clock-rates = <19200000>;
+
+ operating-points-v2 = <&mdp_opp_table>;
+ power-domains = <&rpmhpd RPMHPD_MMCX>;
+
+ interrupt-parent = <&mdss>;
+ interrupts = <0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ dpu_intf1_out: endpoint {
+ remote-endpoint = <&dsi0_in>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ dpu_intf2_out: endpoint {
+ remote-endpoint = <&dsi1_in>;
+ };
+ };
+ };
+
+ mdp_opp_table: opp-table {
+ compatible = "operating-points-v2";
+
+ opp-200000000 {
+ opp-hz = /bits/ 64 <200000000>;
+ required-opps = <&rpmhpd_opp_low_svs>;
+ };
+
+ opp-325000000 {
+ opp-hz = /bits/ 64 <325000000>;
+ required-opps = <&rpmhpd_opp_svs>;
+ };
+
+ opp-375000000 {
+ opp-hz = /bits/ 64 <375000000>;
+ required-opps = <&rpmhpd_opp_svs_l1>;
+ };
+
+ opp-514000000 {
+ opp-hz = /bits/ 64 <514000000>;
+ required-opps = <&rpmhpd_opp_nom>;
+ };
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sm8650-mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sm8650-mdss.yaml
new file mode 100644
index 000000000000..a1c53e191033
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/msm/qcom,sm8650-mdss.yaml
@@ -0,0 +1,341 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/msm/qcom,sm8650-mdss.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm SM8650 Display MDSS
+
+maintainers:
+ - Neil Armstrong <neil.armstrong@linaro.org>
+
+description:
+ SM8650 MSM Mobile Display Subsystem(MDSS), which encapsulates sub-blocks like
+ DPU display controller, DSI and DP interfaces etc.
+
+$ref: /schemas/display/msm/mdss-common.yaml#
+
+properties:
+ compatible:
+ const: qcom,sm8650-mdss
+
+ clocks:
+ items:
+ - description: Display AHB
+ - description: Display hf AXI
+ - description: Display core
+
+ iommus:
+ maxItems: 1
+
+ interconnects:
+ items:
+ - description: Interconnect path from mdp0 port to the data bus
+ - description: Interconnect path from CPU to the reg bus
+
+ interconnect-names:
+ items:
+ - const: mdp0-mem
+ - const: cpu-cfg
+
+patternProperties:
+ "^display-controller@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+ properties:
+ compatible:
+ const: qcom,sm8650-dpu
+
+ "^displayport-controller@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+ properties:
+ compatible:
+ const: qcom,sm8650-dp
+
+ "^dsi@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+ properties:
+ compatible:
+ items:
+ - const: qcom,sm8650-dsi-ctrl
+ - const: qcom,mdss-dsi-ctrl
+
+ "^phy@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+ properties:
+ compatible:
+ const: qcom,sm8650-dsi-phy-4nm
+
+required:
+ - compatible
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,rpmh.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/power/qcom,rpmhpd.h>
+ #include <dt-bindings/interconnect/qcom,sm8650-rpmh.h>
+
+ display-subsystem@ae00000 {
+ compatible = "qcom,sm8650-mdss";
+ reg = <0x0ae00000 0x1000>;
+ reg-names = "mdss";
+
+ interconnects = <&mmss_noc MASTER_MDP 0 &mc_virt SLAVE_EBI1 0>,
+ <&gem_noc MASTER_APPSS_PROC 0 &config_noc SLAVE_DISPLAY_CFG 0>;
+ interconnect-names = "mdp0-mem", "cpu-cfg";
+
+ resets = <&dispcc_core_bcr>;
+
+ power-domains = <&dispcc_gdsc>;
+
+ clocks = <&gcc_ahb_clk>,
+ <&gcc_axi_clk>,
+ <&dispcc_mdp_clk>;
+ clock-names = "bus", "nrt_bus", "core";
+
+ interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-controller;
+ #interrupt-cells = <1>;
+
+ iommus = <&apps_smmu 0x1c00 0x2>;
+
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ display-controller@ae01000 {
+ compatible = "qcom,sm8650-dpu";
+ reg = <0x0ae01000 0x8f000>,
+ <0x0aeb0000 0x2008>;
+ reg-names = "mdp", "vbif";
+
+ clocks = <&gcc_axi_clk>,
+ <&dispcc_ahb_clk>,
+ <&dispcc_mdp_lut_clk>,
+ <&dispcc_mdp_clk>,
+ <&dispcc_mdp_vsync_clk>;
+ clock-names = "nrt_bus",
+ "iface",
+ "lut",
+ "core",
+ "vsync";
+
+ assigned-clocks = <&dispcc_mdp_vsync_clk>;
+ assigned-clock-rates = <19200000>;
+
+ operating-points-v2 = <&mdp_opp_table>;
+ power-domains = <&rpmhpd RPMHPD_MMCX>;
+
+ interrupt-parent = <&mdss>;
+ interrupts = <0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ dpu_intf1_out: endpoint {
+ remote-endpoint = <&dsi0_in>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ dpu_intf2_out: endpoint {
+ remote-endpoint = <&dsi1_in>;
+ };
+ };
+ };
+
+ mdp_opp_table: opp-table {
+ compatible = "operating-points-v2";
+
+ opp-200000000 {
+ opp-hz = /bits/ 64 <200000000>;
+ required-opps = <&rpmhpd_opp_low_svs>;
+ };
+
+ opp-325000000 {
+ opp-hz = /bits/ 64 <325000000>;
+ required-opps = <&rpmhpd_opp_svs>;
+ };
+
+ opp-375000000 {
+ opp-hz = /bits/ 64 <375000000>;
+ required-opps = <&rpmhpd_opp_svs_l1>;
+ };
+
+ opp-514000000 {
+ opp-hz = /bits/ 64 <514000000>;
+ required-opps = <&rpmhpd_opp_nom>;
+ };
+ };
+ };
+
+ dsi@ae94000 {
+ compatible = "qcom,sm8650-dsi-ctrl", "qcom,mdss-dsi-ctrl";
+ reg = <0x0ae94000 0x400>;
+ reg-names = "dsi_ctrl";
+
+ interrupt-parent = <&mdss>;
+ interrupts = <4>;
+
+ clocks = <&dispc_byte_clk>,
+ <&dispcc_intf_clk>,
+ <&dispcc_pclk>,
+ <&dispcc_esc_clk>,
+ <&dispcc_ahb_clk>,
+ <&gcc_bus_clk>;
+ clock-names = "byte",
+ "byte_intf",
+ "pixel",
+ "core",
+ "iface",
+ "bus";
+
+ assigned-clocks = <&dispcc_byte_clk>,
+ <&dispcc_pclk>;
+ assigned-clock-parents = <&dsi0_phy 0>, <&dsi0_phy 1>;
+
+ operating-points-v2 = <&dsi_opp_table>;
+ power-domains = <&rpmhpd RPMHPD_MMCX>;
+
+ phys = <&dsi0_phy>;
+ phy-names = "dsi";
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ dsi0_in: endpoint {
+ remote-endpoint = <&dpu_intf1_out>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ dsi0_out: endpoint {
+ };
+ };
+ };
+
+ dsi_opp_table: opp-table {
+ compatible = "operating-points-v2";
+
+ opp-187500000 {
+ opp-hz = /bits/ 64 <187500000>;
+ required-opps = <&rpmhpd_opp_low_svs>;
+ };
+
+ opp-300000000 {
+ opp-hz = /bits/ 64 <300000000>;
+ required-opps = <&rpmhpd_opp_svs>;
+ };
+
+ opp-358000000 {
+ opp-hz = /bits/ 64 <358000000>;
+ required-opps = <&rpmhpd_opp_svs_l1>;
+ };
+ };
+ };
+
+ dsi0_phy: phy@ae94400 {
+ compatible = "qcom,sm8650-dsi-phy-4nm";
+ reg = <0x0ae95000 0x200>,
+ <0x0ae95200 0x280>,
+ <0x0ae95500 0x400>;
+ reg-names = "dsi_phy",
+ "dsi_phy_lane",
+ "dsi_pll";
+
+ #clock-cells = <1>;
+ #phy-cells = <0>;
+
+ clocks = <&dispcc_iface_clk>,
+ <&rpmhcc_ref_clk>;
+ clock-names = "iface", "ref";
+ };
+
+ dsi@ae96000 {
+ compatible = "qcom,sm8650-dsi-ctrl", "qcom,mdss-dsi-ctrl";
+ reg = <0x0ae96000 0x400>;
+ reg-names = "dsi_ctrl";
+
+ interrupt-parent = <&mdss>;
+ interrupts = <5>;
+
+ clocks = <&dispc_byte_clk>,
+ <&dispcc_intf_clk>,
+ <&dispcc_pclk>,
+ <&dispcc_esc_clk>,
+ <&dispcc_ahb_clk>,
+ <&gcc_bus_clk>;
+ clock-names = "byte",
+ "byte_intf",
+ "pixel",
+ "core",
+ "iface",
+ "bus";
+
+ assigned-clocks = <&dispcc_byte_clk>,
+ <&dispcc_pclk>;
+ assigned-clock-parents = <&dsi1_phy 0>, <&dsi1_phy 1>;
+
+ operating-points-v2 = <&dsi_opp_table>;
+ power-domains = <&rpmhpd RPMHPD_MMCX>;
+
+ phys = <&dsi1_phy>;
+ phy-names = "dsi";
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ dsi1_in: endpoint {
+ remote-endpoint = <&dpu_intf2_out>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ dsi1_out: endpoint {
+ };
+ };
+ };
+ };
+
+ dsi1_phy: phy@ae96400 {
+ compatible = "qcom,sm8650-dsi-phy-4nm";
+ reg = <0x0ae97000 0x200>,
+ <0x0ae97200 0x280>,
+ <0x0ae97500 0x400>;
+ reg-names = "dsi_phy",
+ "dsi_phy_lane",
+ "dsi_pll";
+
+ #clock-cells = <1>;
+ #phy-cells = <0>;
+
+ clocks = <&dispcc_iface_clk>,
+ <&rpmhcc_ref_clk>;
+ clock-names = "iface", "ref";
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sm8750-mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sm8750-mdss.yaml
new file mode 100644
index 000000000000..d55fda9a523e
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/msm/qcom,sm8750-mdss.yaml
@@ -0,0 +1,474 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/msm/qcom,sm8750-mdss.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm SM8750 Display MDSS
+
+maintainers:
+ - Krzysztof Kozlowski <krzk@kernel.org>
+
+description:
+ SM8650 MSM Mobile Display Subsystem(MDSS), which encapsulates sub-blocks like
+ DPU display controller, DSI and DP interfaces etc.
+
+$ref: /schemas/display/msm/mdss-common.yaml#
+
+properties:
+ compatible:
+ const: qcom,sm8750-mdss
+
+ clocks:
+ items:
+ - description: Display AHB
+ - description: Display hf AXI
+ - description: Display core
+
+ iommus:
+ maxItems: 1
+
+ interconnects:
+ items:
+ - description: Interconnect path from mdp0 port to the data bus
+ - description: Interconnect path from CPU to the reg bus
+
+ interconnect-names:
+ items:
+ - const: mdp0-mem
+ - const: cpu-cfg
+
+patternProperties:
+ "^display-controller@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+ properties:
+ compatible:
+ const: qcom,sm8750-dpu
+
+ "^displayport-controller@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+ properties:
+ compatible:
+ contains:
+ const: qcom,sm8750-dp
+
+ "^dsi@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+ properties:
+ compatible:
+ contains:
+ const: qcom,sm8750-dsi-ctrl
+
+ "^phy@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+ properties:
+ compatible:
+ const: qcom,sm8750-dsi-phy-3nm
+
+required:
+ - compatible
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,rpmh.h>
+ #include <dt-bindings/interconnect/qcom,icc.h>
+ #include <dt-bindings/interconnect/qcom,sm8750-rpmh.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/phy/phy-qcom-qmp.h>
+ #include <dt-bindings/power/qcom,rpmhpd.h>
+
+ display-subsystem@ae00000 {
+ compatible = "qcom,sm8750-mdss";
+ reg = <0x0ae00000 0x1000>;
+ reg-names = "mdss";
+
+ interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
+
+ clocks = <&disp_cc_mdss_ahb_clk>,
+ <&gcc_disp_hf_axi_clk>,
+ <&disp_cc_mdss_mdp_clk>;
+
+ interconnects = <&mmss_noc MASTER_MDP QCOM_ICC_TAG_ALWAYS
+ &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>,
+ <&gem_noc MASTER_APPSS_PROC QCOM_ICC_TAG_ACTIVE_ONLY
+ &config_noc SLAVE_DISPLAY_CFG QCOM_ICC_TAG_ACTIVE_ONLY>;
+ interconnect-names = "mdp0-mem",
+ "cpu-cfg";
+
+ resets = <&disp_cc_mdss_core_bcr>;
+
+ power-domains = <&mdss_gdsc>;
+
+ iommus = <&apps_smmu 0x800 0x2>;
+
+ interrupt-controller;
+ #interrupt-cells = <1>;
+
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ display-controller@ae01000 {
+ compatible = "qcom,sm8750-dpu";
+ reg = <0x0ae01000 0x93000>,
+ <0x0aeb0000 0x2008>;
+ reg-names = "mdp",
+ "vbif";
+
+ interrupts-extended = <&mdss 0>;
+
+ clocks = <&gcc_disp_hf_axi_clk>,
+ <&disp_cc_mdss_ahb_clk>,
+ <&disp_cc_mdss_mdp_lut_clk>,
+ <&disp_cc_mdss_mdp_clk>,
+ <&disp_cc_mdss_vsync_clk>;
+ clock-names = "nrt_bus",
+ "iface",
+ "lut",
+ "core",
+ "vsync";
+
+ assigned-clocks = <&disp_cc_mdss_vsync_clk>;
+ assigned-clock-rates = <19200000>;
+
+ operating-points-v2 = <&mdp_opp_table>;
+
+ power-domains = <&rpmhpd RPMHPD_MMCX>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ dpu_intf1_out: endpoint {
+ remote-endpoint = <&mdss_dsi0_in>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ dpu_intf2_out: endpoint {
+ remote-endpoint = <&mdss_dsi1_in>;
+ };
+ };
+
+ port@2 {
+ reg = <2>;
+
+ dpu_intf0_out: endpoint {
+ remote-endpoint = <&mdss_dp0_in>;
+ };
+ };
+ };
+
+ mdp_opp_table: opp-table {
+ compatible = "operating-points-v2";
+
+ opp-207000000 {
+ opp-hz = /bits/ 64 <207000000>;
+ required-opps = <&rpmhpd_opp_low_svs>;
+ };
+
+ opp-337000000 {
+ opp-hz = /bits/ 64 <337000000>;
+ required-opps = <&rpmhpd_opp_svs>;
+ };
+
+ opp-417000000 {
+ opp-hz = /bits/ 64 <417000000>;
+ required-opps = <&rpmhpd_opp_svs_l1>;
+ };
+
+ opp-532000000 {
+ opp-hz = /bits/ 64 <532000000>;
+ required-opps = <&rpmhpd_opp_nom>;
+ };
+
+ opp-575000000 {
+ opp-hz = /bits/ 64 <575000000>;
+ required-opps = <&rpmhpd_opp_nom_l1>;
+ };
+ };
+ };
+
+ dsi@ae94000 {
+ compatible = "qcom,sm8750-dsi-ctrl", "qcom,mdss-dsi-ctrl";
+ reg = <0x0ae94000 0x400>;
+ reg-names = "dsi_ctrl";
+
+ interrupts-extended = <&mdss 4>;
+
+ clocks = <&disp_cc_mdss_byte0_clk>,
+ <&disp_cc_mdss_byte0_intf_clk>,
+ <&disp_cc_mdss_pclk0_clk>,
+ <&disp_cc_mdss_esc0_clk>,
+ <&disp_cc_mdss_ahb_clk>,
+ <&gcc_disp_hf_axi_clk>,
+ <&mdss_dsi0_phy 1>,
+ <&mdss_dsi0_phy 0>,
+ <&disp_cc_esync0_clk>,
+ <&disp_cc_osc_clk>,
+ <&disp_cc_mdss_byte0_clk_src>,
+ <&disp_cc_mdss_pclk0_clk_src>;
+ clock-names = "byte",
+ "byte_intf",
+ "pixel",
+ "core",
+ "iface",
+ "bus",
+ "dsi_pll_pixel",
+ "dsi_pll_byte",
+ "esync",
+ "osc",
+ "byte_src",
+ "pixel_src";
+
+ operating-points-v2 = <&mdss_dsi_opp_table>;
+
+ power-domains = <&rpmhpd RPMHPD_MMCX>;
+
+ phys = <&mdss_dsi0_phy>;
+ phy-names = "dsi";
+
+ vdda-supply = <&vreg_l3g_1p2>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ mdss_dsi0_in: endpoint {
+ remote-endpoint = <&dpu_intf1_out>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ mdss_dsi0_out: endpoint {
+ remote-endpoint = <&panel0_in>;
+ data-lanes = <0 1 2 3>;
+ };
+ };
+ };
+
+ mdss_dsi_opp_table: opp-table {
+ compatible = "operating-points-v2";
+
+ opp-187500000 {
+ opp-hz = /bits/ 64 <187500000>;
+ required-opps = <&rpmhpd_opp_low_svs>;
+ };
+
+ opp-300000000 {
+ opp-hz = /bits/ 64 <300000000>;
+ required-opps = <&rpmhpd_opp_svs>;
+ };
+
+ opp-358000000 {
+ opp-hz = /bits/ 64 <358000000>;
+ required-opps = <&rpmhpd_opp_svs_l1>;
+ };
+ };
+ };
+
+ mdss_dsi0_phy: phy@ae95000 {
+ compatible = "qcom,sm8750-dsi-phy-3nm";
+ reg = <0x0ae95000 0x200>,
+ <0x0ae95200 0x280>,
+ <0x0ae95500 0x400>;
+ reg-names = "dsi_phy",
+ "dsi_phy_lane",
+ "dsi_pll";
+
+ clocks = <&disp_cc_mdss_ahb_clk>,
+ <&rpmhcc RPMH_CXO_CLK>;
+ clock-names = "iface",
+ "ref";
+
+ vdds-supply = <&vreg_l3i_0p88>;
+
+ #clock-cells = <1>;
+ #phy-cells = <0>;
+ };
+
+ dsi@ae96000 {
+ compatible = "qcom,sm8750-dsi-ctrl", "qcom,mdss-dsi-ctrl";
+ reg = <0x0ae96000 0x400>;
+ reg-names = "dsi_ctrl";
+
+ interrupts-extended = <&mdss 5>;
+
+ clocks = <&disp_cc_mdss_byte1_clk>,
+ <&disp_cc_mdss_byte1_intf_clk>,
+ <&disp_cc_mdss_pclk1_clk>,
+ <&disp_cc_mdss_esc1_clk>,
+ <&disp_cc_mdss_ahb_clk>,
+ <&gcc_disp_hf_axi_clk>,
+ <&mdss_dsi1_phy 1>,
+ <&mdss_dsi1_phy 0>,
+ <&disp_cc_esync1_clk>,
+ <&disp_cc_osc_clk>,
+ <&disp_cc_mdss_byte1_clk_src>,
+ <&disp_cc_mdss_pclk1_clk_src>;
+ clock-names = "byte",
+ "byte_intf",
+ "pixel",
+ "core",
+ "iface",
+ "bus",
+ "dsi_pll_pixel",
+ "dsi_pll_byte",
+ "esync",
+ "osc",
+ "byte_src",
+ "pixel_src";
+
+ operating-points-v2 = <&mdss_dsi_opp_table>;
+
+ power-domains = <&rpmhpd RPMHPD_MMCX>;
+
+ phys = <&mdss_dsi1_phy>;
+ phy-names = "dsi";
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ mdss_dsi1_in: endpoint {
+ remote-endpoint = <&dpu_intf2_out>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ mdss_dsi1_out: endpoint {
+ };
+ };
+ };
+ };
+
+ mdss_dsi1_phy: phy@ae97000 {
+ compatible = "qcom,sm8750-dsi-phy-3nm";
+ reg = <0x0ae97000 0x200>,
+ <0x0ae97200 0x280>,
+ <0x0ae97500 0x400>;
+ reg-names = "dsi_phy",
+ "dsi_phy_lane",
+ "dsi_pll";
+
+ clocks = <&disp_cc_mdss_ahb_clk>,
+ <&rpmhcc RPMH_CXO_CLK>;
+ clock-names = "iface",
+ "ref";
+
+ #clock-cells = <1>;
+ #phy-cells = <0>;
+ };
+
+ displayport-controller@af54000 {
+ compatible = "qcom,sm8750-dp", "qcom,sm8650-dp";
+ reg = <0xaf54000 0x104>,
+ <0xaf54200 0xc0>,
+ <0xaf55000 0x770>,
+ <0xaf56000 0x9c>,
+ <0xaf57000 0x9c>;
+
+ interrupts-extended = <&mdss 12>;
+
+ clocks = <&disp_cc_mdss_ahb_clk>,
+ <&disp_cc_mdss_dptx0_aux_clk>,
+ <&disp_cc_mdss_dptx0_link_clk>,
+ <&disp_cc_mdss_dptx0_link_intf_clk>,
+ <&disp_cc_mdss_dptx0_pixel0_clk>,
+ <&disp_cc_mdss_dptx0_pixel1_clk>;
+ clock-names = "core_iface",
+ "core_aux",
+ "ctrl_link",
+ "ctrl_link_iface",
+ "stream_pixel",
+ "stream_1_pixel";
+
+ assigned-clocks = <&disp_cc_mdss_dptx0_link_clk_src>,
+ <&disp_cc_mdss_dptx0_pixel0_clk_src>,
+ <&disp_cc_mdss_dptx0_pixel1_clk_src>;
+ assigned-clock-parents = <&usb_dp_qmpphy QMP_USB43DP_DP_LINK_CLK>,
+ <&usb_dp_qmpphy QMP_USB43DP_DP_VCO_DIV_CLK>,
+ <&usb_dp_qmpphy QMP_USB43DP_DP_VCO_DIV_CLK>;
+
+ operating-points-v2 = <&dp_opp_table>;
+
+ power-domains = <&rpmhpd RPMHPD_MMCX>;
+
+ phys = <&usb_dp_qmpphy QMP_USB43DP_DP_PHY>;
+ phy-names = "dp";
+
+ #sound-dai-cells = <0>;
+
+ dp_opp_table: opp-table {
+ compatible = "operating-points-v2";
+
+ opp-192000000 {
+ opp-hz = /bits/ 64 <192000000>;
+ required-opps = <&rpmhpd_opp_low_svs_d1>;
+ };
+
+ opp-270000000 {
+ opp-hz = /bits/ 64 <270000000>;
+ required-opps = <&rpmhpd_opp_low_svs>;
+ };
+
+ opp-540000000 {
+ opp-hz = /bits/ 64 <540000000>;
+ required-opps = <&rpmhpd_opp_svs_l1>;
+ };
+
+ opp-810000000 {
+ opp-hz = /bits/ 64 <810000000>;
+ required-opps = <&rpmhpd_opp_nom>;
+ };
+ };
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ mdss_dp0_in: endpoint {
+ remote-endpoint = <&dpu_intf0_out>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ mdss_dp0_out: endpoint {
+ remote-endpoint = <&usb_dp_qmpphy_dp_in>;
+ };
+ };
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,x1e80100-mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,x1e80100-mdss.yaml
new file mode 100644
index 000000000000..8d698a2e055a
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/msm/qcom,x1e80100-mdss.yaml
@@ -0,0 +1,255 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/msm/qcom,x1e80100-mdss.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm X1E80100 Display MDSS
+
+maintainers:
+ - Abel Vesa <abel.vesa@linaro.org>
+
+description:
+ X1E80100 MSM Mobile Display Subsystem(MDSS), which encapsulates sub-blocks like
+ DPU display controller, DP interfaces, etc.
+
+$ref: /schemas/display/msm/mdss-common.yaml#
+
+properties:
+ compatible:
+ const: qcom,x1e80100-mdss
+
+ clocks:
+ items:
+ - description: Display AHB
+ - description: Display hf AXI
+ - description: Display core
+
+ iommus:
+ maxItems: 1
+
+ interconnects:
+ maxItems: 3
+
+ interconnect-names:
+ maxItems: 3
+
+patternProperties:
+ "^display-controller@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+ properties:
+ compatible:
+ const: qcom,x1e80100-dpu
+
+ "^displayport-controller@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+ properties:
+ compatible:
+ const: qcom,x1e80100-dp
+
+ "^phy@[0-9a-f]+$":
+ type: object
+ additionalProperties: true
+ properties:
+ compatible:
+ const: qcom,x1e80100-dp-phy
+
+required:
+ - compatible
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,rpmh.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/interconnect/qcom,x1e80100-rpmh.h>
+ #include <dt-bindings/phy/phy-qcom-qmp.h>
+ #include <dt-bindings/power/qcom,rpmhpd.h>
+
+ display-subsystem@ae00000 {
+ compatible = "qcom,x1e80100-mdss";
+ reg = <0x0ae00000 0x1000>;
+ reg-names = "mdss";
+
+ interconnects = <&mmss_noc MASTER_MDP 0 &gem_noc SLAVE_LLCC 0>,
+ <&mc_virt MASTER_LLCC 0 &mc_virt SLAVE_EBI1 0>,
+ <&gem_noc MASTER_APPSS_PROC 0 &config_noc SLAVE_DISPLAY_CFG 0>;
+ interconnect-names = "mdp0-mem", "mdp1-mem", "cpu-cfg";
+
+ resets = <&dispcc_core_bcr>;
+
+ power-domains = <&dispcc_gdsc>;
+
+ clocks = <&dispcc_ahb_clk>,
+ <&gcc_disp_hf_axi_clk>,
+ <&dispcc_mdp_clk>;
+ clock-names = "bus", "nrt_bus", "core";
+
+ interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-controller;
+ #interrupt-cells = <1>;
+
+ iommus = <&apps_smmu 0x1c00 0x2>;
+
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ display-controller@ae01000 {
+ compatible = "qcom,x1e80100-dpu";
+ reg = <0x0ae01000 0x8f000>,
+ <0x0aeb0000 0x2008>;
+ reg-names = "mdp", "vbif";
+
+ clocks = <&gcc_axi_clk>,
+ <&dispcc_ahb_clk>,
+ <&dispcc_mdp_lut_clk>,
+ <&dispcc_mdp_clk>,
+ <&dispcc_mdp_vsync_clk>;
+ clock-names = "nrt_bus",
+ "iface",
+ "lut",
+ "core",
+ "vsync";
+
+ assigned-clocks = <&dispcc_mdp_vsync_clk>;
+ assigned-clock-rates = <19200000>;
+
+ operating-points-v2 = <&mdp_opp_table>;
+ power-domains = <&rpmhpd RPMHPD_MMCX>;
+
+ interrupt-parent = <&mdss>;
+ interrupts = <0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ dpu_intf1_out: endpoint {
+ remote-endpoint = <&dsi0_in>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ dpu_intf2_out: endpoint {
+ remote-endpoint = <&dsi1_in>;
+ };
+ };
+ };
+
+ mdp_opp_table: opp-table {
+ compatible = "operating-points-v2";
+
+ opp-200000000 {
+ opp-hz = /bits/ 64 <200000000>;
+ required-opps = <&rpmhpd_opp_low_svs>;
+ };
+
+ opp-325000000 {
+ opp-hz = /bits/ 64 <325000000>;
+ required-opps = <&rpmhpd_opp_svs>;
+ };
+
+ opp-375000000 {
+ opp-hz = /bits/ 64 <375000000>;
+ required-opps = <&rpmhpd_opp_svs_l1>;
+ };
+
+ opp-514000000 {
+ opp-hz = /bits/ 64 <514000000>;
+ required-opps = <&rpmhpd_opp_nom>;
+ };
+ };
+ };
+
+ displayport-controller@ae90000 {
+ compatible = "qcom,x1e80100-dp";
+ reg = <0xae90000 0x200>,
+ <0xae90200 0x200>,
+ <0xae90400 0x600>,
+ <0xae91000 0x400>,
+ <0xae91400 0x400>;
+
+ interrupt-parent = <&mdss>;
+ interrupts = <12>;
+
+ clocks = <&dispcc_mdss_ahb_clk>,
+ <&dispcc_dptx0_aux_clk>,
+ <&dispcc_dptx0_link_clk>,
+ <&dispcc_dptx0_link_intf_clk>,
+ <&dispcc_dptx0_pixel0_clk>,
+ <&dispcc_dptx0_pixel1_clk>;
+ clock-names = "core_iface", "core_aux",
+ "ctrl_link",
+ "ctrl_link_iface",
+ "stream_pixel",
+ "stream_1_pixel";
+
+ assigned-clocks = <&dispcc_mdss_dptx0_link_clk_src>,
+ <&dispcc_mdss_dptx0_pixel0_clk_src>,
+ <&dispcc_mdss_dptx0_pixel1_clk_src>;
+ assigned-clock-parents = <&usb_1_ss0_qmpphy QMP_USB43DP_DP_LINK_CLK>,
+ <&usb_1_ss0_qmpphy QMP_USB43DP_DP_VCO_DIV_CLK>,
+ <&usb_1_ss0_qmpphy QMP_USB43DP_DP_VCO_DIV_CLK>;
+
+ operating-points-v2 = <&mdss_dp0_opp_table>;
+
+ power-domains = <&rpmhpd RPMHPD_MMCX>;
+
+ phys = <&usb_1_ss0_qmpphy QMP_USB43DP_DP_PHY>;
+ phy-names = "dp";
+
+ #sound-dai-cells = <0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ mdss_dp0_in: endpoint {
+ remote-endpoint = <&mdss_intf0_out>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ mdss_dp0_out: endpoint {
+ };
+ };
+ };
+
+ mdss_dp0_opp_table: opp-table {
+ compatible = "operating-points-v2";
+
+ opp-160000000 {
+ opp-hz = /bits/ 64 <160000000>;
+ required-opps = <&rpmhpd_opp_low_svs>;
+ };
+
+ opp-270000000 {
+ opp-hz = /bits/ 64 <270000000>;
+ required-opps = <&rpmhpd_opp_svs>;
+ };
+
+ opp-540000000 {
+ opp-hz = /bits/ 64 <540000000>;
+ required-opps = <&rpmhpd_opp_svs_l1>;
+ };
+
+ opp-810000000 {
+ opp-hz = /bits/ 64 <810000000>;
+ required-opps = <&rpmhpd_opp_nom>;
+ };
+ };
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/display/panel/abt,y030xx067a.yaml b/Documentation/devicetree/bindings/display/panel/abt,y030xx067a.yaml
index acd2f3faa6b9..0aa2d3fbadaa 100644
--- a/Documentation/devicetree/bindings/display/panel/abt,y030xx067a.yaml
+++ b/Documentation/devicetree/bindings/display/panel/abt,y030xx067a.yaml
@@ -17,10 +17,12 @@ properties:
compatible:
const: abt,y030xx067a
+ reg:
+ maxItems: 1
+
backlight: true
port: true
power-supply: true
- reg: true
reset-gpios: true
required:
diff --git a/Documentation/devicetree/bindings/display/panel/advantech,idk-2121wr.yaml b/Documentation/devicetree/bindings/display/panel/advantech,idk-2121wr.yaml
index 67682fe77f10..05ca3b2385f8 100644
--- a/Documentation/devicetree/bindings/display/panel/advantech,idk-2121wr.yaml
+++ b/Documentation/devicetree/bindings/display/panel/advantech,idk-2121wr.yaml
@@ -19,6 +19,10 @@ description: |
second port, therefore the ports must be marked accordingly (with either
dual-lvds-odd-pixels or dual-lvds-even-pixels).
+allOf:
+ - $ref: /schemas/display/lvds-dual-ports.yaml#
+ - $ref: panel-common.yaml#
+
properties:
compatible:
items:
@@ -41,22 +45,10 @@ properties:
properties:
port@0:
- $ref: /schemas/graph.yaml#/$defs/port-base
- unevaluatedProperties: false
- description: The sink for odd pixels.
- properties:
- dual-lvds-odd-pixels: true
-
required:
- dual-lvds-odd-pixels
port@1:
- $ref: /schemas/graph.yaml#/$defs/port-base
- unevaluatedProperties: false
- description: The sink for even pixels.
- properties:
- dual-lvds-even-pixels: true
-
required:
- dual-lvds-even-pixels
@@ -72,7 +64,6 @@ required:
- height-mm
- data-mapping
- panel-timing
- - ports
examples:
- |+
diff --git a/Documentation/devicetree/bindings/display/panel/anbernic,rg35xx-plus-panel.yaml b/Documentation/devicetree/bindings/display/panel/anbernic,rg35xx-plus-panel.yaml
new file mode 100644
index 000000000000..1d67492ebd3b
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/anbernic,rg35xx-plus-panel.yaml
@@ -0,0 +1,67 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/anbernic,rg35xx-plus-panel.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Anbernic RG35XX series (WL-355608-A8) 3.5" 640x480 24-bit IPS LCD panel
+
+maintainers:
+ - Ryan Walklin <ryan@testtoast.com>
+
+allOf:
+ - $ref: panel-common.yaml#
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+properties:
+ compatible:
+ oneOf:
+ - const: anbernic,rg35xx-plus-panel
+ - items:
+ - enum:
+ - anbernic,rg35xx-2024-panel
+ - anbernic,rg35xx-h-panel
+ - anbernic,rg35xx-sp-panel
+ - const: anbernic,rg35xx-plus-panel
+
+ reg:
+ maxItems: 1
+
+ spi-3wire: true
+
+required:
+ - compatible
+ - reg
+ - port
+ - power-supply
+ - reset-gpios
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ panel@0 {
+ compatible = "anbernic,rg35xx-plus-panel";
+ reg = <0>;
+
+ spi-3wire;
+ spi-max-frequency = <3125000>;
+
+ reset-gpios = <&pio 8 14 GPIO_ACTIVE_LOW>; // PI14
+
+ backlight = <&backlight>;
+ power-supply = <&reg_lcd>;
+
+ port {
+ endpoint {
+ remote-endpoint = <&tcon_lcd0_out_lcd>;
+ };
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/display/panel/apple,summit.yaml b/Documentation/devicetree/bindings/display/panel/apple,summit.yaml
new file mode 100644
index 000000000000..f081755325e9
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/apple,summit.yaml
@@ -0,0 +1,58 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/apple,summit.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Apple "Summit" display panel
+
+maintainers:
+ - Sasha Finkelstein <fnkl.kernel@gmail.com>
+
+description:
+ An OLED panel used as a touchbar on certain Apple laptops.
+ Contains a backlight device, which controls brightness of the panel itself.
+ The backlight common properties are included for this reason
+
+allOf:
+ - $ref: panel-common.yaml#
+ - $ref: /schemas/leds/backlight/common.yaml#
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - apple,j293-summit
+ - apple,j493-summit
+ - const: apple,summit
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - max-brightness
+ - port
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ dsi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ panel@0 {
+ compatible = "apple,j293-summit", "apple,summit";
+ reg = <0>;
+ max-brightness = <255>;
+
+ port {
+ endpoint {
+ remote-endpoint = <&dfr_bridge_out>;
+ };
+ };
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/display/panel/asus,z00t-tm5p5-nt35596.yaml b/Documentation/devicetree/bindings/display/panel/asus,z00t-tm5p5-nt35596.yaml
index 75a09df68ba0..dd614e077bbf 100644
--- a/Documentation/devicetree/bindings/display/panel/asus,z00t-tm5p5-nt35596.yaml
+++ b/Documentation/devicetree/bindings/display/panel/asus,z00t-tm5p5-nt35596.yaml
@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: ASUS Z00T TM5P5 NT35596 5.5" 1080×1920 LCD Panel
maintainers:
- - Konrad Dybcio <konradybcio@gmail.com>
+ - Konrad Dybcio <konradybcio@kernel.org>
description: |+
This panel seems to only be found in the Asus Z00T
@@ -21,7 +21,10 @@ allOf:
properties:
compatible:
const: asus,z00t-tm5p5-n35596
- reg: true
+
+ reg:
+ maxItems: 1
+
reset-gpios: true
vdd-supply:
description: core voltage supply
diff --git a/Documentation/devicetree/bindings/display/panel/boe,bf060y8m-aj0.yaml b/Documentation/devicetree/bindings/display/panel/boe,bf060y8m-aj0.yaml
index a8f3afa922c8..8b7448ad9138 100644
--- a/Documentation/devicetree/bindings/display/panel/boe,bf060y8m-aj0.yaml
+++ b/Documentation/devicetree/bindings/display/panel/boe,bf060y8m-aj0.yaml
@@ -26,6 +26,9 @@ properties:
compatible:
const: boe,bf060y8m-aj0
+ reg:
+ maxItems: 1
+
elvdd-supply:
description: EL Driving positive (VDD) supply (4.40-4.80V)
elvss-supply:
@@ -38,7 +41,6 @@ properties:
description: I/O voltage supply (1.62-1.98V)
port: true
- reg: true
reset-gpios: true
required:
diff --git a/Documentation/devicetree/bindings/display/panel/boe,himax8279d.yaml b/Documentation/devicetree/bindings/display/panel/boe,himax8279d.yaml
index 272a3a018a33..f2496cdd9260 100644
--- a/Documentation/devicetree/bindings/display/panel/boe,himax8279d.yaml
+++ b/Documentation/devicetree/bindings/display/panel/boe,himax8279d.yaml
@@ -18,9 +18,11 @@ properties:
- const: boe,himax8279d8p
- const: boe,himax8279d10p
+ reg:
+ maxItems: 1
+
backlight: true
enable-gpios: true
- reg: true
pp33-gpios:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/display/panel/boe,td4320.yaml b/Documentation/devicetree/bindings/display/panel/boe,td4320.yaml
new file mode 100644
index 000000000000..c6bff0ece360
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/boe,td4320.yaml
@@ -0,0 +1,65 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/boe,td4320.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: BOE TD4320 MIPI-DSI panels
+
+maintainers:
+ - Barnabas Czeman <barnabas.czeman@mainlining.org>
+
+description:
+ BOE TD4320 6.3" 1080x2340 panel found in Xiaomi Redmi Note 7 smartphone.
+
+allOf:
+ - $ref: panel-common.yaml#
+
+properties:
+ compatible:
+ items:
+ - const: boe,td4320
+
+ reg:
+ maxItems: 1
+
+ iovcc-supply:
+ description: I/O voltage rail
+
+ vsn-supply:
+ description: Negative source voltage rail
+
+ vsp-supply:
+ description: Positive source voltage rail
+
+required:
+ - compatible
+ - reg
+ - reset-gpios
+ - port
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ dsi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ panel@0 {
+ compatible = "boe,td4320";
+ reg = <0>;
+ backlight = <&backlight>;
+ reset-gpios = <&tlmm 45 GPIO_ACTIVE_LOW>;
+
+ port {
+ panel_in: endpoint {
+ remote-endpoint = <&dsi_out>;
+ };
+ };
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/display/panel/boe,th101mb31ig002-28a.yaml b/Documentation/devicetree/bindings/display/panel/boe,th101mb31ig002-28a.yaml
new file mode 100644
index 000000000000..6a82bd1ec763
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/boe,th101mb31ig002-28a.yaml
@@ -0,0 +1,75 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/boe,th101mb31ig002-28a.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: BOE TH101MB31IG002-28A WXGA DSI Display Panel
+
+maintainers:
+ - Manuel Traut <manut@mecka.net>
+
+properties:
+ compatible:
+ enum:
+ # BOE TH101MB31IG002-28A 10.1" WXGA TFT LCD panel
+ - boe,th101mb31ig002-28a
+ # The Starry-er88577 is a 10.1" WXGA TFT-LCD panel
+ - starry,er88577
+
+ reg:
+ maxItems: 1
+
+ backlight: true
+ enable-gpios: true
+ reset-gpios: true
+ power-supply: true
+ port: true
+ rotation: true
+
+required:
+ - compatible
+ - reg
+ - enable-gpios
+ - power-supply
+
+allOf:
+ - $ref: panel-common.yaml#
+ - if:
+ properties:
+ compatible:
+ # The Starry-er88577 is a 10.1" WXGA TFT-LCD panel
+ const: starry,er88577
+ then:
+ properties:
+ reset-gpios: false
+ else:
+ required:
+ - reset-gpios
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ dsi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ panel@0 {
+ compatible = "boe,th101mb31ig002-28a";
+ reg = <0>;
+ backlight = <&backlight_lcd0>;
+ enable-gpios = <&gpio 45 GPIO_ACTIVE_HIGH>;
+ reset-gpios = <&gpio 55 GPIO_ACTIVE_LOW>;
+ rotation = <90>;
+ power-supply = <&vcc_3v3>;
+ port {
+ panel_in_dsi: endpoint {
+ remote-endpoint = <&dsi_out_con>;
+ };
+ };
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/display/panel/boe,tv101wum-ll2.yaml b/Documentation/devicetree/bindings/display/panel/boe,tv101wum-ll2.yaml
new file mode 100644
index 000000000000..dced98e1c69a
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/boe,tv101wum-ll2.yaml
@@ -0,0 +1,63 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/boe,tv101wum-ll2.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: BOE TV101WUM-LL2 DSI Display Panel
+
+maintainers:
+ - Neil Armstrong <neil.armstrong@linaro.org>
+
+allOf:
+ - $ref: panel-common.yaml#
+
+properties:
+ compatible:
+ const: boe,tv101wum-ll2
+
+ reg:
+ maxItems: 1
+ description: DSI virtual channel
+
+ backlight: true
+ reset-gpios: true
+ vsp-supply: true
+ vsn-supply: true
+ port: true
+ rotation: true
+
+required:
+ - compatible
+ - reg
+ - reset-gpios
+ - vsp-supply
+ - vsn-supply
+ - port
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ dsi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ panel@0 {
+ compatible = "boe,tv101wum-ll2";
+ reg = <0>;
+
+ vsn-supply = <&vsn_lcd>;
+ vsp-supply = <&vsp_lcd>;
+
+ reset-gpios = <&pio 45 GPIO_ACTIVE_LOW>;
+
+ port {
+ panel_in: endpoint {
+ remote-endpoint = <&dsi_out>;
+ };
+ };
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/display/panel/boe,tv101wum-nl6.yaml b/Documentation/devicetree/bindings/display/panel/boe,tv101wum-nl6.yaml
index aed55608ebf6..7a9f49e40e75 100644
--- a/Documentation/devicetree/bindings/display/panel/boe,tv101wum-nl6.yaml
+++ b/Documentation/devicetree/bindings/display/panel/boe,tv101wum-nl6.yaml
@@ -32,9 +32,11 @@ properties:
- innolux,hj110iz-01a
# STARRY 2081101QFH032011-53G 10.1" WUXGA TFT LCD panel
- starry,2081101qfh032011-53g
+ # STARRY ili9882t 10.51" WUXGA TFT LCD panel
+ - starry,ili9882t
reg:
- description: the virtual channel number of a DSI peripheral
+ maxItems: 1
enable-gpios:
description: a GPIO spec for the enable pin
diff --git a/Documentation/devicetree/bindings/display/panel/elida,kd35t133.yaml b/Documentation/devicetree/bindings/display/panel/elida,kd35t133.yaml
index 265ab6d30572..f4cb825d1e96 100644
--- a/Documentation/devicetree/bindings/display/panel/elida,kd35t133.yaml
+++ b/Documentation/devicetree/bindings/display/panel/elida,kd35t133.yaml
@@ -15,7 +15,10 @@ allOf:
properties:
compatible:
const: elida,kd35t133
- reg: true
+
+ reg:
+ maxItems: 1
+
backlight: true
port: true
reset-gpios: true
diff --git a/Documentation/devicetree/bindings/display/panel/fascontek,fs035vg158.yaml b/Documentation/devicetree/bindings/display/panel/fascontek,fs035vg158.yaml
new file mode 100644
index 000000000000..9847da784cc8
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/fascontek,fs035vg158.yaml
@@ -0,0 +1,59 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/fascontek,fs035vg158.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Fascontek FS035VG158 3.5" (640x480 pixels) 24-bit IPS LCD panel
+
+maintainers:
+ - John Watts <contact@jookia.org>
+
+allOf:
+ - $ref: panel-common.yaml#
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+properties:
+ compatible:
+ const: fascontek,fs035vg158
+
+ reg:
+ maxItems: 1
+
+ spi-3wire: true
+
+required:
+ - compatible
+ - reg
+ - port
+ - power-supply
+ - reset-gpios
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ panel@0 {
+ compatible = "fascontek,fs035vg158";
+ reg = <0>;
+
+ spi-3wire;
+ spi-max-frequency = <3125000>;
+
+ reset-gpios = <&gpe 2 GPIO_ACTIVE_LOW>;
+
+ backlight = <&backlight>;
+ power-supply = <&vcc>;
+
+ port {
+ panel_input: endpoint {
+ remote-endpoint = <&panel_output>;
+ };
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/display/panel/feixin,k101-im2ba02.yaml b/Documentation/devicetree/bindings/display/panel/feixin,k101-im2ba02.yaml
index 81adb82f061d..0d8707a5844d 100644
--- a/Documentation/devicetree/bindings/display/panel/feixin,k101-im2ba02.yaml
+++ b/Documentation/devicetree/bindings/display/panel/feixin,k101-im2ba02.yaml
@@ -15,7 +15,10 @@ allOf:
properties:
compatible:
const: feixin,k101-im2ba02
- reg: true
+
+ reg:
+ maxItems: 1
+
backlight: true
reset-gpios: true
avdd-supply:
diff --git a/Documentation/devicetree/bindings/display/panel/himax,hx8279.yaml b/Documentation/devicetree/bindings/display/panel/himax,hx8279.yaml
new file mode 100644
index 000000000000..f619aea82bdf
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/himax,hx8279.yaml
@@ -0,0 +1,75 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/himax,hx8279.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Himax HX8279/HX8279-D based MIPI-DSI panels
+
+maintainers:
+ - AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
+
+description:
+ The Himax HX8279 is a 1803 channel outputs source driver with MIPI
+ TCON, which generates the horizontal and vertical control timing to
+ the source and gate drivers.
+ This DriverIC is most suitable for 1200x1920, 1080x1920, 1200x1600,
+ and 600x1024 panels and outputs full RGB888 over two or four lanes,
+ single or dual, MIPI-DSI video interface.
+
+allOf:
+ - $ref: panel-common-dual.yaml#
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - aoly,sl101pm1794fog-v15
+ - startek,kd070fhfid078
+ - const: himax,hx8279
+
+ reg:
+ maxItems: 1
+
+ iovcc-supply:
+ description: I/O voltage supply
+
+ vdd-supply:
+ description: Panel power supply
+
+required:
+ - compatible
+ - reg
+ - backlight
+ - reset-gpios
+ - iovcc-supply
+ - vdd-supply
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ dsi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ panel@0 {
+ compatible = "startek,kd070fhfid078", "himax,hx8279";
+ reg = <0>;
+ backlight = <&backlight>;
+ enable-gpios = <&pio 25 GPIO_ACTIVE_HIGH>;
+ reset-gpios = <&pio 45 GPIO_ACTIVE_HIGH>;
+ iovcc-supply = <&vreg_lcm_vio>;
+ vdd-supply = <&vreg_lcm_vdd>;
+
+ port {
+ panel_in: endpoint {
+ remote-endpoint = <&dsi_out>;
+ };
+ };
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/display/panel/himax,hx83102.yaml b/Documentation/devicetree/bindings/display/panel/himax,hx83102.yaml
new file mode 100644
index 000000000000..e4c1aa5deab9
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/himax,hx83102.yaml
@@ -0,0 +1,83 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/himax,hx83102.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Himax HX83102 MIPI-DSI LCD panel controller
+
+maintainers:
+ - Cong Yang <yangcong5@huaqin.corp-partner.google.com>
+
+allOf:
+ - $ref: panel-common.yaml#
+
+properties:
+ compatible:
+ items:
+ - enum:
+ # Boe nv110wum-l60 11.0" WUXGA TFT LCD panel
+ - boe,nv110wum-l60
+ # CSOT pna957qt1-1 10.95" WUXGA TFT LCD panel
+ - csot,pna957qt1-1
+ # IVO t109nw41 11.0" WUXGA TFT LCD panel
+ - ivo,t109nw41
+ # KINGDISPLAY KD110N11-51IE 10.95" WUXGA TFT LCD panel
+ - kingdisplay,kd110n11-51ie
+ # STARRY 2082109QFH040022-50E 10.95" WUXGA TFT LCD panel
+ - starry,2082109qfh040022-50e
+ # STARRY himax83102-j02 10.51" WUXGA TFT LCD panel
+ - starry,himax83102-j02
+ - const: himax,hx83102
+
+ reg:
+ description: the virtual channel number of a DSI peripheral
+
+ enable-gpios:
+ description: a GPIO spec for the enable pin
+
+ pp1800-supply:
+ description: core voltage supply
+
+ avdd-supply:
+ description: phandle of the regulator that provides positive voltage
+
+ avee-supply:
+ description: phandle of the regulator that provides negative voltage
+
+ backlight: true
+ port: true
+ rotation: true
+
+required:
+ - compatible
+ - reg
+ - enable-gpios
+ - pp1800-supply
+ - avdd-supply
+ - avee-supply
+
+additionalProperties: false
+
+examples:
+ - |
+ dsi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ panel@0 {
+ compatible = "starry,himax83102-j02", "himax,hx83102";
+ reg = <0>;
+ enable-gpios = <&pio 45 0>;
+ avdd-supply = <&ppvarn_lcd>;
+ avee-supply = <&ppvarp_lcd>;
+ pp1800-supply = <&pp1800_lcd>;
+ backlight = <&backlight_lcd0>;
+ port {
+ panel_in: endpoint {
+ remote-endpoint = <&dsi_out>;
+ };
+ };
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/display/panel/himax,hx83112a.yaml b/Documentation/devicetree/bindings/display/panel/himax,hx83112a.yaml
new file mode 100644
index 000000000000..56bcd152f43c
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/himax,hx83112a.yaml
@@ -0,0 +1,76 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/himax,hx83112a.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Himax HX83112A-based DSI display panels
+
+maintainers:
+ - Luca Weiss <luca.weiss@fairphone.com>
+
+description:
+ The Himax HX83112A is a generic DSI Panel IC used to control
+ LCD panels.
+
+allOf:
+ - $ref: panel-common.yaml#
+
+properties:
+ compatible:
+ contains:
+ const: djn,9a-3r063-1102b
+
+ reg:
+ maxItems: 1
+
+ vdd1-supply:
+ description: Digital voltage rail
+
+ vsn-supply:
+ description: Positive source voltage rail
+
+ vsp-supply:
+ description: Negative source voltage rail
+
+ port: true
+
+required:
+ - compatible
+ - reg
+ - reset-gpios
+ - vdd1-supply
+ - vsn-supply
+ - vsp-supply
+ - port
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ dsi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ panel@0 {
+ compatible = "djn,9a-3r063-1102b";
+ reg = <0>;
+
+ backlight = <&pm6150l_wled>;
+ reset-gpios = <&pm6150l_gpios 9 GPIO_ACTIVE_LOW>;
+
+ vdd1-supply = <&vreg_l1e>;
+ vsn-supply = <&pm6150l_lcdb_ncp>;
+ vsp-supply = <&pm6150l_lcdb_ldo>;
+
+ port {
+ panel_in_0: endpoint {
+ remote-endpoint = <&dsi0_out>;
+ };
+ };
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/display/panel/himax,hx83112b.yaml b/Documentation/devicetree/bindings/display/panel/himax,hx83112b.yaml
new file mode 100644
index 000000000000..e58bb3d45331
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/himax,hx83112b.yaml
@@ -0,0 +1,73 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/himax,hx83112b.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Himax HX83112B-based DSI display panels
+
+maintainers:
+ - Luca Weiss <luca@lucaweiss.eu>
+
+description:
+ The Himax HX83112B is a generic DSI Panel IC used to control
+ LCD panels.
+
+allOf:
+ - $ref: panel-common.yaml#
+
+properties:
+ compatible:
+ contains:
+ const: djn,98-03057-6598b-i
+
+ reg:
+ maxItems: 1
+
+ iovcc-supply:
+ description: I/O voltage rail
+
+ vsn-supply:
+ description: Positive source voltage rail
+
+ vsp-supply:
+ description: Negative source voltage rail
+
+required:
+ - compatible
+ - reg
+ - reset-gpios
+ - iovcc-supply
+ - vsn-supply
+ - vsp-supply
+ - port
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ dsi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ panel@0 {
+ compatible = "djn,98-03057-6598b-i";
+ reg = <0>;
+
+ reset-gpios = <&tlmm 61 GPIO_ACTIVE_LOW>;
+
+ iovcc-supply = <&pm8953_l6>;
+ vsn-supply = <&pmi632_lcdb_ncp>;
+ vsp-supply = <&pmi632_lcdb_ldo>;
+
+ port {
+ panel_in_0: endpoint {
+ remote-endpoint = <&dsi0_out>;
+ };
+ };
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/display/panel/himax,hx8394.yaml b/Documentation/devicetree/bindings/display/panel/himax,hx8394.yaml
index 1b2a1baa26f9..5725a587e35c 100644
--- a/Documentation/devicetree/bindings/display/panel/himax,hx8394.yaml
+++ b/Documentation/devicetree/bindings/display/panel/himax,hx8394.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause)
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/panel/himax,hx8394.yaml#
@@ -15,22 +15,29 @@ description:
such as the HannStar HSD060BHW4 720x1440 TFT LCD panel connected with
a MIPI-DSI video interface.
-allOf:
- - $ref: panel-common.yaml#
-
properties:
compatible:
- items:
- - enum:
- - hannstar,hsd060bhw4
- - const: himax,hx8394
-
- reg: true
+ oneOf:
+ - items:
+ - enum:
+ - hannstar,hsd060bhw4
+ - microchip,ac40t08a-mipi-panel
+ - powkiddy,x55-panel
+ - const: himax,hx8394
+ - items:
+ - enum:
+ - huiling,hl055fhav028c
+ - const: himax,hx8399c
+
+ reg:
+ maxItems: 1
reset-gpios: true
backlight: true
+ rotation: true
+
port: true
vcc-supply:
@@ -42,7 +49,6 @@ properties:
required:
- compatible
- reg
- - reset-gpios
- backlight
- port
- vcc-supply
@@ -50,6 +56,18 @@ required:
additionalProperties: false
+allOf:
+ - $ref: panel-common.yaml#
+ - if:
+ not:
+ properties:
+ compatible:
+ enum:
+ - microchip,ac40t08a-mipi-panel
+ then:
+ required:
+ - reset-gpios
+
examples:
- |
#include <dt-bindings/gpio/gpio.h>
diff --git a/Documentation/devicetree/bindings/display/panel/hydis,hv101hd1.yaml b/Documentation/devicetree/bindings/display/panel/hydis,hv101hd1.yaml
new file mode 100644
index 000000000000..f429e84ee65d
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/hydis,hv101hd1.yaml
@@ -0,0 +1,60 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/hydis,hv101hd1.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Hydis HV101HD1 DSI Display Panel
+
+maintainers:
+ - Svyatoslav Ryhel <clamor95@gmail.com>
+
+allOf:
+ - $ref: panel-common.yaml#
+
+properties:
+ compatible:
+ const: hydis,hv101hd1
+
+ reg:
+ maxItems: 1
+
+ vdd-supply: true
+ vio-supply: true
+
+ backlight: true
+ port: true
+
+required:
+ - compatible
+ - vdd-supply
+ - vio-supply
+ - backlight
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ dsi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ panel@0 {
+ compatible = "hydis,hv101hd1";
+ reg = <0>;
+
+ vdd-supply = <&vdd_lcd>;
+ vio-supply = <&vddio_lcd>;
+
+ backlight = <&backlight>;
+
+ port {
+ panel_in: endpoint {
+ remote-endpoint = <&dsi_out>;
+ };
+ };
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/display/panel/ilitek,il79900a.yaml b/Documentation/devicetree/bindings/display/panel/ilitek,il79900a.yaml
new file mode 100644
index 000000000000..02f7fb1f16dc
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/ilitek,il79900a.yaml
@@ -0,0 +1,68 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/ilitek,il79900a.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Ilitek IL79900a based MIPI-DSI panels
+
+maintainers:
+ - Langyan Ye <yelangyan@huaqin.corp-partner.google.com>
+
+allOf:
+ - $ref: panel-common.yaml#
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - tianma,tl121bvms07-00
+ - const: ilitek,il79900a
+
+ reg:
+ maxItems: 1
+ description: DSI virtual channel used by the panel
+
+ enable-gpios:
+ maxItems: 1
+ description: GPIO specifier for the enable pin
+
+ avdd-supply:
+ description: Positive analog voltage supply (AVDD)
+
+ avee-supply:
+ description: Negative analog voltage supply (AVEE)
+
+ pp1800-supply:
+ description: 1.8V logic voltage supply
+
+ backlight: true
+
+required:
+ - compatible
+ - reg
+ - enable-gpios
+ - avdd-supply
+ - avee-supply
+ - pp1800-supply
+
+additionalProperties: false
+
+examples:
+ - |
+ dsi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ panel@0 {
+ compatible = "tianma,tl121bvms07-00", "ilitek,il79900a";
+ reg = <0>;
+ enable-gpios = <&pio 25 0>;
+ avdd-supply = <&reg_avdd>;
+ avee-supply = <&reg_avee>;
+ pp1800-supply = <&reg_pp1800>;
+ backlight = <&backlight>;
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/display/panel/ilitek,ili9163.yaml b/Documentation/devicetree/bindings/display/panel/ilitek,ili9163.yaml
index 90e323e19edb..ef5a2240b684 100644
--- a/Documentation/devicetree/bindings/display/panel/ilitek,ili9163.yaml
+++ b/Documentation/devicetree/bindings/display/panel/ilitek,ili9163.yaml
@@ -24,6 +24,9 @@ properties:
- newhaven,1.8-128160EF
- const: ilitek,ili9163
+ reg:
+ maxItems: 1
+
spi-max-frequency:
maximum: 32000000
@@ -32,7 +35,6 @@ properties:
description: Display data/command selection (D/CX)
backlight: true
- reg: true
reset-gpios: true
rotation: true
@@ -48,10 +50,6 @@ examples:
- |
#include <dt-bindings/gpio/gpio.h>
- backlight: backlight {
- compatible = "gpio-backlight";
- gpios = <&gpio 22 GPIO_ACTIVE_HIGH>;
- };
spi {
#address-cells = <1>;
#size-cells = <0>;
diff --git a/Documentation/devicetree/bindings/display/panel/ilitek,ili9322.yaml b/Documentation/devicetree/bindings/display/panel/ilitek,ili9322.yaml
index 7d221ef35443..44423465f6e3 100644
--- a/Documentation/devicetree/bindings/display/panel/ilitek,ili9322.yaml
+++ b/Documentation/devicetree/bindings/display/panel/ilitek,ili9322.yaml
@@ -26,6 +26,9 @@ properties:
- dlink,dir-685-panel
- const: ilitek,ili9322
+ reg:
+ maxItems: 1
+
reset-gpios: true
port: true
diff --git a/Documentation/devicetree/bindings/display/panel/ilitek,ili9341.yaml b/Documentation/devicetree/bindings/display/panel/ilitek,ili9341.yaml
index 94f169ea065a..5f41758c96d5 100644
--- a/Documentation/devicetree/bindings/display/panel/ilitek,ili9341.yaml
+++ b/Documentation/devicetree/bindings/display/panel/ilitek,ili9341.yaml
@@ -28,7 +28,8 @@ properties:
- canaan,kd233-tft
- const: ilitek,ili9341
- reg: true
+ reg:
+ maxItems: 1
dc-gpios:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/display/panel/ilitek,ili9805.yaml b/Documentation/devicetree/bindings/display/panel/ilitek,ili9805.yaml
new file mode 100644
index 000000000000..ff67129c9466
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/ilitek,ili9805.yaml
@@ -0,0 +1,64 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/ilitek,ili9805.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Ilitek ILI9805 based MIPI-DSI panels
+
+maintainers:
+ - Michael Trimarchi <michael@amarulasolutions.com>
+
+allOf:
+ - $ref: panel-common.yaml#
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - giantplus,gpm1790a0
+ - tianma,tm041xdhg01
+ - const: ilitek,ili9805
+
+ reg:
+ maxItems: 1
+
+ avdd-supply: true
+ dvdd-supply: true
+
+required:
+ - compatible
+ - avdd-supply
+ - dvdd-supply
+ - reg
+ - reset-gpios
+ - port
+ - backlight
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ dsi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ panel@0 {
+ compatible = "giantplus,gpm1790a0", "ilitek,ili9805";
+ reg = <0>;
+ avdd-supply = <&avdd_display>;
+ dvdd-supply = <&dvdd_display>;
+ reset-gpios = <&r_pio 0 5 GPIO_ACTIVE_LOW>; /* PL05 */
+ backlight = <&backlight>;
+
+ port {
+ panel_in: endpoint {
+ remote-endpoint = <&mipi_dsi_out>;
+ };
+ };
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/display/panel/ilitek,ili9806e.yaml b/Documentation/devicetree/bindings/display/panel/ilitek,ili9806e.yaml
new file mode 100644
index 000000000000..f80307579485
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/ilitek,ili9806e.yaml
@@ -0,0 +1,64 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/ilitek,ili9806e.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Ilitek ILI9806E based MIPI-DSI panels
+
+maintainers:
+ - Michael Walle <mwalle@kernel.org>
+
+allOf:
+ - $ref: panel-common.yaml#
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - densitron,dmt028vghmcmi-1d
+ - ortustech,com35h3p70ulc
+ - const: ilitek,ili9806e
+
+ reg:
+ maxItems: 1
+
+ vdd-supply: true
+ vccio-supply: true
+
+required:
+ - compatible
+ - reg
+ - vdd-supply
+ - vccio-supply
+ - reset-gpios
+ - backlight
+ - port
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ dsi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ panel@0 {
+ compatible = "ortustech,com35h3p70ulc", "ilitek,ili9806e";
+ reg = <0>;
+ vdd-supply = <&reg_vdd_panel>;
+ vccio-supply = <&reg_vccio_panel>;
+ reset-gpios = <&gpio3 6 GPIO_ACTIVE_LOW>;
+ backlight = <&backlight>;
+
+ port {
+ panel_in: endpoint {
+ remote-endpoint = <&dsi_out>;
+ };
+ };
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/display/panel/ilitek,ili9881c.yaml b/Documentation/devicetree/bindings/display/panel/ilitek,ili9881c.yaml
index c5d1df680858..d979701a00a8 100644
--- a/Documentation/devicetree/bindings/display/panel/ilitek,ili9881c.yaml
+++ b/Documentation/devicetree/bindings/display/panel/ilitek,ili9881c.yaml
@@ -16,14 +16,24 @@ properties:
compatible:
items:
- enum:
+ - ampire,am8001280g
- bananapi,lhr050h41
+ - bestar,bsd1218-a101kl68
- feixin,k101-im2byl02
+ - raspberrypi,dsi-5inch
+ - raspberrypi,dsi-7inch
+ - startek,kd050hdfia020
+ - tdo,tl050hdv35
+ - wanchanglong,w552946aaa
- wanchanglong,w552946aba
- const: ilitek,ili9881c
+ reg:
+ maxItems: 1
+
backlight: true
+ port: true
power-supply: true
- reg: true
reset-gpios: true
rotation: true
diff --git a/Documentation/devicetree/bindings/display/panel/innolux,ej030na.yaml b/Documentation/devicetree/bindings/display/panel/innolux,ej030na.yaml
index 72788e3e6c59..c7df9a7f6589 100644
--- a/Documentation/devicetree/bindings/display/panel/innolux,ej030na.yaml
+++ b/Documentation/devicetree/bindings/display/panel/innolux,ej030na.yaml
@@ -17,10 +17,12 @@ properties:
compatible:
const: innolux,ej030na
+ reg:
+ maxItems: 1
+
backlight: true
port: true
power-supply: true
- reg: true
reset-gpios: true
required:
diff --git a/Documentation/devicetree/bindings/display/panel/innolux,p097pfg.yaml b/Documentation/devicetree/bindings/display/panel/innolux,p097pfg.yaml
index 5a5f071627fb..4164e3f7061d 100644
--- a/Documentation/devicetree/bindings/display/panel/innolux,p097pfg.yaml
+++ b/Documentation/devicetree/bindings/display/panel/innolux,p097pfg.yaml
@@ -16,9 +16,11 @@ properties:
compatible:
const: innolux,p097pfg
+ reg:
+ maxItems: 1
+
backlight: true
enable-gpios: true
- reg: true
avdd-supply:
description: The regulator that provides positive voltage
diff --git a/Documentation/devicetree/bindings/display/panel/jadard,jd9365da-h3.yaml b/Documentation/devicetree/bindings/display/panel/jadard,jd9365da-h3.yaml
index 41eb7fbf7715..b8783eba3ddc 100644
--- a/Documentation/devicetree/bindings/display/panel/jadard,jd9365da-h3.yaml
+++ b/Documentation/devicetree/bindings/display/panel/jadard,jd9365da-h3.yaml
@@ -17,11 +17,14 @@ properties:
items:
- enum:
- chongzhou,cz101b4001
+ - kingdisplay,kd101ne3-40ti
+ - melfas,lmfbx101117480
- radxa,display-10hd-ad001
- radxa,display-8hd-ad002
- const: jadard,jd9365da-h3
- reg: true
+ reg:
+ maxItems: 1
vdd-supply:
description: supply regulator for VDD, usually 3.3V
diff --git a/Documentation/devicetree/bindings/display/panel/jdi,lpm102a188a.yaml b/Documentation/devicetree/bindings/display/panel/jdi,lpm102a188a.yaml
new file mode 100644
index 000000000000..a8621459005b
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/jdi,lpm102a188a.yaml
@@ -0,0 +1,96 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/jdi,lpm102a188a.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: JDI LPM102A188A 2560x1800 10.2" DSI Panel
+
+maintainers:
+ - Diogo Ivo <diogo.ivo@tecnico.ulisboa.pt>
+
+description: |
+ This panel requires a dual-channel DSI host to operate. It supports two modes:
+ - left-right: each channel drives the left or right half of the screen
+ - even-odd: each channel drives the even or odd lines of the screen
+
+ Each of the DSI channels controls a separate DSI peripheral. The peripheral
+ driven by the first link (DSI-LINK1) is considered the primary peripheral
+ and controls the device. The 'link2' property contains a phandle to the
+ peripheral driven by the second link (DSI-LINK2).
+
+allOf:
+ - $ref: panel-common.yaml#
+
+properties:
+ compatible:
+ const: jdi,lpm102a188a
+
+ reg:
+ maxItems: 1
+
+ enable-gpios: true
+ reset-gpios: true
+ power-supply: true
+ backlight: true
+
+ ddi-supply:
+ description: The regulator that provides IOVCC (1.8V).
+
+ link2:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: |
+ phandle to the DSI peripheral on the secondary link. Note that the
+ presence of this property marks the containing node as DSI-LINK1.
+
+required:
+ - compatible
+ - reg
+
+if:
+ required:
+ - link2
+then:
+ required:
+ - power-supply
+ - ddi-supply
+ - enable-gpios
+ - reset-gpios
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/gpio/tegra-gpio.h>
+
+ dsia: dsi@54300000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x0 0x54300000 0x0 0x00040000>;
+
+ link2: panel@0 {
+ compatible = "jdi,lpm102a188a";
+ reg = <0>;
+ };
+ };
+
+ dsib: dsi@54400000{
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x0 0x54400000 0x0 0x00040000>;
+ nvidia,ganged-mode = <&dsia>;
+
+ link1: panel@0 {
+ compatible = "jdi,lpm102a188a";
+ reg = <0>;
+ power-supply = <&pplcd_vdd>;
+ ddi-supply = <&pp1800_lcdio>;
+ enable-gpios = <&gpio TEGRA_GPIO(V, 1) GPIO_ACTIVE_HIGH>;
+ reset-gpios = <&gpio TEGRA_GPIO(V, 2) GPIO_ACTIVE_LOW>;
+ link2 = <&link2>;
+ backlight = <&backlight>;
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/display/panel/jdi,lt070me05000.yaml b/Documentation/devicetree/bindings/display/panel/jdi,lt070me05000.yaml
index 63c82a4378ff..0c8b5cb78bfe 100644
--- a/Documentation/devicetree/bindings/display/panel/jdi,lt070me05000.yaml
+++ b/Documentation/devicetree/bindings/display/panel/jdi,lt070me05000.yaml
@@ -16,8 +16,10 @@ properties:
compatible:
const: jdi,lt070me05000
+ reg:
+ maxItems: 1
+
enable-gpios: true
- reg: true
reset-gpios: true
vddp-supply:
diff --git a/Documentation/devicetree/bindings/display/panel/kingdisplay,kd035g6-54nt.yaml b/Documentation/devicetree/bindings/display/panel/kingdisplay,kd035g6-54nt.yaml
index b4be9bd8ddde..d86c916f7b55 100644
--- a/Documentation/devicetree/bindings/display/panel/kingdisplay,kd035g6-54nt.yaml
+++ b/Documentation/devicetree/bindings/display/panel/kingdisplay,kd035g6-54nt.yaml
@@ -17,10 +17,12 @@ properties:
compatible:
const: kingdisplay,kd035g6-54nt
+ reg:
+ maxItems: 1
+
backlight: true
port: true
power-supply: true
- reg: true
reset-gpios: true
spi-3wire: true
diff --git a/Documentation/devicetree/bindings/display/panel/leadtek,ltk035c5444t.yaml b/Documentation/devicetree/bindings/display/panel/leadtek,ltk035c5444t.yaml
index ebdca5f5a001..b5dc02b27200 100644
--- a/Documentation/devicetree/bindings/display/panel/leadtek,ltk035c5444t.yaml
+++ b/Documentation/devicetree/bindings/display/panel/leadtek,ltk035c5444t.yaml
@@ -18,16 +18,15 @@ properties:
compatible:
const: leadtek,ltk035c5444t
- backlight: true
- port: true
- power-supply: true
- reg: true
- reset-gpios: true
+ reg:
+ maxItems: 1
spi-3wire: true
required:
- compatible
+ - reg
+ - port
- power-supply
- reset-gpios
diff --git a/Documentation/devicetree/bindings/display/panel/leadtek,ltk050h3146w.yaml b/Documentation/devicetree/bindings/display/panel/leadtek,ltk050h3146w.yaml
index 3f6efbb942da..5fcea62fd58f 100644
--- a/Documentation/devicetree/bindings/display/panel/leadtek,ltk050h3146w.yaml
+++ b/Documentation/devicetree/bindings/display/panel/leadtek,ltk050h3146w.yaml
@@ -17,8 +17,13 @@ properties:
enum:
- leadtek,ltk050h3146w
- leadtek,ltk050h3146w-a2
- reg: true
+ - leadtek,ltk050h3148w
+
+ reg:
+ maxItems: 1
+
backlight: true
+ port: true
reset-gpios: true
iovcc-supply:
description: regulator that supplies the iovcc voltage
diff --git a/Documentation/devicetree/bindings/display/panel/leadtek,ltk500hd1829.yaml b/Documentation/devicetree/bindings/display/panel/leadtek,ltk500hd1829.yaml
index c5944b4d636c..b0e2c82232d3 100644
--- a/Documentation/devicetree/bindings/display/panel/leadtek,ltk500hd1829.yaml
+++ b/Documentation/devicetree/bindings/display/panel/leadtek,ltk500hd1829.yaml
@@ -14,9 +14,15 @@ allOf:
properties:
compatible:
- const: leadtek,ltk500hd1829
- reg: true
+ enum:
+ - leadtek,ltk101b4029w
+ - leadtek,ltk500hd1829
+
+ reg:
+ maxItems: 1
+
backlight: true
+ port: true
reset-gpios: true
iovcc-supply:
description: regulator that supplies the iovcc voltage
diff --git a/Documentation/devicetree/bindings/display/panel/lg,ld070wx3-sl01.yaml b/Documentation/devicetree/bindings/display/panel/lg,ld070wx3-sl01.yaml
new file mode 100644
index 000000000000..0f0b9079f199
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/lg,ld070wx3-sl01.yaml
@@ -0,0 +1,60 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/lg,ld070wx3-sl01.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: LG Corporation 7" WXGA TFT LCD panel
+
+maintainers:
+ - Svyatoslav Ryhel <clamor95@gmail.com>
+
+allOf:
+ - $ref: panel-common.yaml#
+
+properties:
+ compatible:
+ items:
+ - const: lg,ld070wx3-sl01
+
+ reg:
+ maxItems: 1
+
+ vdd-supply: true
+ vcc-supply: true
+
+ backlight: true
+ port: true
+
+required:
+ - compatible
+ - vdd-supply
+ - vcc-supply
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ dsi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ panel@0 {
+ compatible = "lg,ld070wx3-sl01";
+ reg = <0>;
+
+ vdd-supply = <&vdd_3v3_lcd>;
+ vcc-supply = <&vcc_1v8_lcd>;
+
+ backlight = <&backlight>;
+
+ port {
+ endpoint {
+ remote-endpoint = <&dsi0_out>;
+ };
+ };
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/display/panel/lg,lg4573.yaml b/Documentation/devicetree/bindings/display/panel/lg,lg4573.yaml
index ee357e139ac0..590ccc27d104 100644
--- a/Documentation/devicetree/bindings/display/panel/lg,lg4573.yaml
+++ b/Documentation/devicetree/bindings/display/panel/lg,lg4573.yaml
@@ -21,7 +21,8 @@ properties:
compatible:
const: lg,lg4573
- reg: true
+ reg:
+ maxItems: 1
required:
- compatible
diff --git a/Documentation/devicetree/bindings/display/panel/lg,sw43408.yaml b/Documentation/devicetree/bindings/display/panel/lg,sw43408.yaml
new file mode 100644
index 000000000000..2219d3d4ac43
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/lg,sw43408.yaml
@@ -0,0 +1,64 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/lg,sw43408.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: LG SW43408 1080x2160 DSI panel
+
+maintainers:
+ - Casey Connolly <casey.connolly@linaro.org>
+
+description:
+ This panel is used on the Pixel 3, it is a 60hz OLED panel which
+ required DSC (Display Stream Compression) and has rounded corners.
+
+allOf:
+ - $ref: panel-common.yaml#
+
+properties:
+ compatible:
+ items:
+ - const: lg,sw43408
+
+ reg:
+ maxItems: 1
+
+ port: true
+ vddi-supply: true
+ vpnl-supply: true
+ reset-gpios: true
+
+required:
+ - compatible
+ - vddi-supply
+ - vpnl-supply
+ - reset-gpios
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ dsi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ panel@0 {
+ compatible = "lg,sw43408";
+ reg = <0>;
+
+ vddi-supply = <&vreg_l14a_1p88>;
+ vpnl-supply = <&vreg_l28a_3p0>;
+
+ reset-gpios = <&tlmm 6 GPIO_ACTIVE_LOW>;
+
+ port {
+ endpoint {
+ remote-endpoint = <&mdss_dsi0_out>;
+ };
+ };
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/display/panel/lgphilips,lb035q02.yaml b/Documentation/devicetree/bindings/display/panel/lgphilips,lb035q02.yaml
index 628c4b898111..3de17fd8513b 100644
--- a/Documentation/devicetree/bindings/display/panel/lgphilips,lb035q02.yaml
+++ b/Documentation/devicetree/bindings/display/panel/lgphilips,lb035q02.yaml
@@ -17,6 +17,9 @@ properties:
compatible:
const: lgphilips,lb035q02
+ reg:
+ maxItems: 1
+
label: true
enable-gpios: true
port: true
diff --git a/Documentation/devicetree/bindings/display/panel/mantix,mlaf057we51-x.yaml b/Documentation/devicetree/bindings/display/panel/mantix,mlaf057we51-x.yaml
index a4b8569ab81c..74ff772973d6 100644
--- a/Documentation/devicetree/bindings/display/panel/mantix,mlaf057we51-x.yaml
+++ b/Documentation/devicetree/bindings/display/panel/mantix,mlaf057we51-x.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause)
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/panel/mantix,mlaf057we51-x.yaml#
diff --git a/Documentation/devicetree/bindings/display/panel/mitsubishi,aa104xd12.yaml b/Documentation/devicetree/bindings/display/panel/mitsubishi,aa104xd12.yaml
index 3623ffa6518d..96621b89ae9e 100644
--- a/Documentation/devicetree/bindings/display/panel/mitsubishi,aa104xd12.yaml
+++ b/Documentation/devicetree/bindings/display/panel/mitsubishi,aa104xd12.yaml
@@ -33,7 +33,9 @@ properties:
description: Reference to the regulator powering the panel VCC pins.
data-mapping:
- const: jeida-24
+ enum:
+ - jeida-18
+ - jeida-24
width-mm:
const: 210
@@ -41,6 +43,7 @@ properties:
height-mm:
const: 158
+ backlight: true
panel-timing: true
port: true
@@ -48,7 +51,6 @@ additionalProperties: false
required:
- compatible
- - vcc-supply
- data-mapping
- width-mm
- height-mm
diff --git a/Documentation/devicetree/bindings/display/panel/nec,nl8048hl11.yaml b/Documentation/devicetree/bindings/display/panel/nec,nl8048hl11.yaml
index accf933d6e46..1cffe4d6d498 100644
--- a/Documentation/devicetree/bindings/display/panel/nec,nl8048hl11.yaml
+++ b/Documentation/devicetree/bindings/display/panel/nec,nl8048hl11.yaml
@@ -21,9 +21,11 @@ properties:
compatible:
const: nec,nl8048hl11
+ reg:
+ maxItems: 1
+
label: true
port: true
- reg: true
reset-gpios: true
spi-max-frequency:
diff --git a/Documentation/devicetree/bindings/display/panel/newvision,nv3051d.yaml b/Documentation/devicetree/bindings/display/panel/newvision,nv3051d.yaml
index 116c1b6030a2..d3a25a8fd7e3 100644
--- a/Documentation/devicetree/bindings/display/panel/newvision,nv3051d.yaml
+++ b/Documentation/devicetree/bindings/display/panel/newvision,nv3051d.yaml
@@ -7,9 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: NewVision NV3051D based LCD panel
description: |
- The NewVision NV3051D is a driver chip used to drive DSI panels. For now,
- this driver only supports the 640x480 panels found in the Anbernic RG353
- based devices.
+ The NewVision NV3051D is a driver chip used to drive DSI panels.
maintainers:
- Chris Morgan <macromorgan@hotmail.com>
@@ -21,11 +19,14 @@ properties:
compatible:
items:
- enum:
+ - anbernic,rg351v-panel
- anbernic,rg353p-panel
- - anbernic,rg353v-panel
+ - powkiddy,rk2023-panel
- const: newvision,nv3051d
- reg: true
+ reg:
+ maxItems: 1
+
backlight: true
port: true
reset-gpios:
diff --git a/Documentation/devicetree/bindings/display/panel/novatek,nt35510.yaml b/Documentation/devicetree/bindings/display/panel/novatek,nt35510.yaml
index bc92928c805b..bb50fd5506c3 100644
--- a/Documentation/devicetree/bindings/display/panel/novatek,nt35510.yaml
+++ b/Documentation/devicetree/bindings/display/panel/novatek,nt35510.yaml
@@ -15,20 +15,26 @@ allOf:
properties:
compatible:
items:
- - const: hydis,hva40wv1
+ - enum:
+ - frida,frd400b25025
+ - hydis,hva40wv1
- const: novatek,nt35510
description: This indicates the panel manufacturer of the panel
that is in turn using the NT35510 panel driver. The compatible
string determines how the NT35510 panel driver shall be configured
to work with the indicated panel. The novatek,nt35510 compatible shall
always be provided as a fallback.
- reg: true
+
+ reg:
+ maxItems: 1
+
reset-gpios: true
vdd-supply:
description: regulator that supplies the vdd voltage
vddi-supply:
description: regulator that supplies the vddi voltage
backlight: true
+ port: true
required:
- compatible
diff --git a/Documentation/devicetree/bindings/display/panel/novatek,nt35950.yaml b/Documentation/devicetree/bindings/display/panel/novatek,nt35950.yaml
index 377a05d48a02..a9e40493986b 100644
--- a/Documentation/devicetree/bindings/display/panel/novatek,nt35950.yaml
+++ b/Documentation/devicetree/bindings/display/panel/novatek,nt35950.yaml
@@ -19,7 +19,7 @@ description: |
either bilinear interpolation or pixel duplication.
allOf:
- - $ref: panel-common.yaml#
+ - $ref: panel-common-dual.yaml#
properties:
compatible:
@@ -33,6 +33,9 @@ properties:
to work with the indicated panel. The novatek,nt35950 compatible shall
always be provided as a fallback.
+ reg:
+ maxItems: 1
+
reset-gpios:
maxItems: 1
description: phandle of gpio for reset line - This should be 8mA, gpio
@@ -49,7 +52,6 @@ properties:
backlight: true
ports: true
- reg: true
required:
- compatible
@@ -59,6 +61,7 @@ required:
- avee-supply
- dvdd-supply
- vddio-supply
+ - ports
additionalProperties: false
diff --git a/Documentation/devicetree/bindings/display/panel/novatek,nt36523.yaml b/Documentation/devicetree/bindings/display/panel/novatek,nt36523.yaml
index 0039561ef04c..c4bae4f77085 100644
--- a/Documentation/devicetree/bindings/display/panel/novatek,nt36523.yaml
+++ b/Documentation/devicetree/bindings/display/panel/novatek,nt36523.yaml
@@ -14,16 +14,21 @@ description: |
panels. Support video mode panels from China Star Optoelectronics
Technology (CSOT) and BOE Technology.
-allOf:
- - $ref: panel-common.yaml#
-
properties:
compatible:
- items:
- - enum:
- - xiaomi,elish-boe-nt36523
- - xiaomi,elish-csot-nt36523
- - const: novatek,nt36523
+ oneOf:
+ - items:
+ - enum:
+ - xiaomi,elish-boe-nt36523
+ - xiaomi,elish-csot-nt36523
+ - const: novatek,nt36523
+ - items:
+ - enum:
+ - lenovo,j606f-boe-nt36523w
+ - const: novatek,nt36523w
+
+ reg:
+ maxItems: 1
reset-gpios:
maxItems: 1
@@ -32,8 +37,7 @@ properties:
vddio-supply:
description: regulator that supplies the I/O voltage
- reg: true
- ports: true
+ rotation: true
backlight: true
required:
@@ -41,7 +45,26 @@ required:
- reg
- vddio-supply
- reset-gpios
- - ports
+
+allOf:
+ - $ref: panel-common-dual.yaml#
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - novatek,nt36523w
+ then:
+ properties:
+ ports:
+ properties:
+ port@1: false
+ else:
+ properties:
+ port: false
+ ports:
+ required:
+ - port@1
unevaluatedProperties: false
diff --git a/Documentation/devicetree/bindings/display/panel/novatek,nt36672a.yaml b/Documentation/devicetree/bindings/display/panel/novatek,nt36672a.yaml
index ae821f465e1c..800a2f0a4dad 100644
--- a/Documentation/devicetree/bindings/display/panel/novatek,nt36672a.yaml
+++ b/Documentation/devicetree/bindings/display/panel/novatek,nt36672a.yaml
@@ -29,6 +29,9 @@ properties:
determines how the NT36672A panel driver is configured for the indicated
panel. The novatek,nt36672a compatible shall always be provided as a fallback.
+ reg:
+ maxItems: 1
+
reset-gpios:
maxItems: 1
description: phandle of gpio for reset line - This should be 8mA, gpio
@@ -44,7 +47,6 @@ properties:
vddneg-supply:
description: phandle of the negative boost supply regulator
- reg: true
port: true
backlight: true
diff --git a/Documentation/devicetree/bindings/display/panel/novatek,nt36672e.yaml b/Documentation/devicetree/bindings/display/panel/novatek,nt36672e.yaml
new file mode 100644
index 000000000000..dc4672f3d01d
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/novatek,nt36672e.yaml
@@ -0,0 +1,66 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/novatek,nt36672e.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Novatek NT36672E LCD DSI Panel
+
+maintainers:
+ - Ritesh Kumar <quic_riteshk@quicinc.com>
+
+allOf:
+ - $ref: panel-common.yaml#
+
+properties:
+ compatible:
+ const: novatek,nt36672e
+
+ reg:
+ maxItems: 1
+ description: DSI virtual channel
+
+ vddi-supply: true
+ avdd-supply: true
+ avee-supply: true
+ port: true
+ reset-gpios: true
+ backlight: true
+
+required:
+ - compatible
+ - reg
+ - vddi-supply
+ - avdd-supply
+ - avee-supply
+ - reset-gpios
+ - port
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ dsi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ panel@0 {
+ compatible = "novatek,nt36672e";
+ reg = <0>;
+
+ reset-gpios = <&tlmm 44 GPIO_ACTIVE_HIGH>;
+
+ vddi-supply = <&vreg_l8c_1p8>;
+ avdd-supply = <&disp_avdd>;
+ avee-supply = <&disp_avee>;
+
+ backlight = <&pwm_backlight>;
+
+ port {
+ panel0_in: endpoint {
+ remote-endpoint = <&dsi0_out>;
+ };
+ };
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/display/panel/novatek,nt37801.yaml b/Documentation/devicetree/bindings/display/panel/novatek,nt37801.yaml
new file mode 100644
index 000000000000..1b38c1d0af68
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/novatek,nt37801.yaml
@@ -0,0 +1,69 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/novatek,nt37801.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Novatek NT37801 AMOLED DSI Panel
+
+maintainers:
+ - Krzysztof Kozlowski <krzk@kernel.org>
+
+description:
+ Naming is inconclusive and different sources claim this is either Novatek
+ NT37801 or NT37810 AMOLED DSI Panel.
+
+allOf:
+ - $ref: panel-common.yaml#
+
+properties:
+ compatible:
+ const: novatek,nt37801
+
+ reg:
+ maxItems: 1
+ description: DSI virtual channel
+
+ vci-supply: true
+ vdd-supply: true
+ vddio-supply: true
+ port: true
+ reset-gpios: true
+
+required:
+ - compatible
+ - reg
+ - vci-supply
+ - vdd-supply
+ - vddio-supply
+ - port
+ - reset-gpios
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ dsi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ panel@0 {
+ compatible = "novatek,nt37801";
+ reg = <0>;
+
+ vci-supply = <&vreg_l13b_3p0>;
+ vdd-supply = <&vreg_l11b_1p2>;
+ vddio-supply = <&vreg_l12b_1p8>;
+
+ reset-gpios = <&tlmm 98 GPIO_ACTIVE_LOW>;
+
+ port {
+ endpoint {
+ remote-endpoint = <&dsi0_out>;
+ };
+ };
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/display/panel/olimex,lcd-olinuxino.yaml b/Documentation/devicetree/bindings/display/panel/olimex,lcd-olinuxino.yaml
index 9f97598efdfa..e5d8785fdf90 100644
--- a/Documentation/devicetree/bindings/display/panel/olimex,lcd-olinuxino.yaml
+++ b/Documentation/devicetree/bindings/display/panel/olimex,lcd-olinuxino.yaml
@@ -20,7 +20,7 @@ description: |
The panel itself contains:
- AT24C16C EEPROM holding panel identification and timing requirements
- AR1021 resistive touch screen controller (optional)
- - FT5x6 capacitive touch screnn controller (optional)
+ - FT5x6 capacitive touch screen controller (optional)
- GT911/GT928 capacitive touch screen controller (optional)
The above chips share same I2C bus. The EEPROM is factory preprogrammed with
@@ -38,10 +38,12 @@ properties:
compatible:
const: olimex,lcd-olinuxino
+ reg:
+ maxItems: 1
+
backlight: true
enable-gpios: true
power-supply: true
- reg: true
required:
- compatible
diff --git a/Documentation/devicetree/bindings/display/panel/orisetech,otm8009a.yaml b/Documentation/devicetree/bindings/display/panel/orisetech,otm8009a.yaml
index ad7d3575190e..1e4f140f48b8 100644
--- a/Documentation/devicetree/bindings/display/panel/orisetech,otm8009a.yaml
+++ b/Documentation/devicetree/bindings/display/panel/orisetech,otm8009a.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause)
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/panel/orisetech,otm8009a.yaml#
diff --git a/Documentation/devicetree/bindings/display/panel/panel-common-dual.yaml b/Documentation/devicetree/bindings/display/panel/panel-common-dual.yaml
new file mode 100644
index 000000000000..cc7ea3c35c77
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/panel-common-dual.yaml
@@ -0,0 +1,47 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/panel-common-dual.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Common Properties for Dual-Link Display Panels
+
+maintainers:
+ - Thierry Reding <thierry.reding@gmail.com>
+ - Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
+
+description:
+ Properties common for Panel IC supporting dual link panels. Devices might
+ support also single link.
+
+allOf:
+ - $ref: panel-common.yaml#
+
+properties:
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+ additionalProperties: false
+
+ properties:
+ port@0:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: First link
+
+ port@1:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: Second link
+
+ "#address-cells": true
+ "#size-cells": true
+
+ required:
+ - port@0
+
+# Single-panel setups are still allowed.
+oneOf:
+ - required:
+ - ports
+ - required:
+ - port
+
+additionalProperties: true
diff --git a/Documentation/devicetree/bindings/display/panel/panel-common.yaml b/Documentation/devicetree/bindings/display/panel/panel-common.yaml
index 5b38dc89cb21..087415753d60 100644
--- a/Documentation/devicetree/bindings/display/panel/panel-common.yaml
+++ b/Documentation/devicetree/bindings/display/panel/panel-common.yaml
@@ -12,7 +12,7 @@ maintainers:
description: |
This document defines device tree properties common to several classes of
- display panels. It doesn't constitue a device tree binding specification by
+ display panels. It doesn't constitute a device tree binding specification by
itself but is meant to be referenced by device tree bindings.
When referenced from panel device tree bindings the properties defined in this
@@ -51,6 +51,14 @@ properties:
$ref: /schemas/types.yaml#/definitions/uint32
enum: [0, 90, 180, 270]
+ flip-horizontal:
+ description: boolean to flip image horizontally
+ type: boolean
+
+ flip-vertical:
+ description: boolean to flip image vertically
+ type: boolean
+
# Display Timings
panel-timing:
description:
diff --git a/Documentation/devicetree/bindings/display/panel/panel-dsi-cm.yaml b/Documentation/devicetree/bindings/display/panel/panel-dsi-cm.yaml
index 4a36aa64c716..f8dc9929e833 100644
--- a/Documentation/devicetree/bindings/display/panel/panel-dsi-cm.yaml
+++ b/Documentation/devicetree/bindings/display/panel/panel-dsi-cm.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause)
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/panel/panel-dsi-cm.yaml#
diff --git a/Documentation/devicetree/bindings/display/panel/panel-edp-legacy.yaml b/Documentation/devicetree/bindings/display/panel/panel-edp-legacy.yaml
new file mode 100644
index 000000000000..b308047c1edf
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/panel-edp-legacy.yaml
@@ -0,0 +1,117 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/panel-edp-legacy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Legacy eDP panels from before the "edp-panel" compatible
+
+maintainers:
+ - Douglas Anderson <dianders@chromium.org>
+
+description: |
+ This binding file is a collection of eDP panels from before the generic
+ "edp-panel" compatible was introduced. It is kept around to support old
+ dts files. The only reason one might add a new panel here instead of using
+ the generic "edp-panel" is if it needed to be used on an eDP controller
+ that doesn't support the generic "edp-panel" compatible, but it should be
+ a strong preference to add the generic "edp-panel" compatible instead.
+
+allOf:
+ - $ref: panel-common.yaml#
+
+properties:
+ compatible:
+ enum:
+ # compatible must be listed in alphabetical order, ordered by compatible.
+ # The description in the comment is mandatory for each compatible.
+
+ # AU Optronics Corporation 10.1" WSVGA TFT LCD panel
+ - auo,b101ean01
+ # AUO B116XAK01 eDP TFT LCD panel
+ - auo,b116xa01
+ # AU Optronics Corporation 13.3" FHD (1920x1080) color TFT-LCD panel
+ - auo,b133htn01
+ # AU Optronics Corporation 13.3" WXGA (1366x768) TFT LCD panel
+ - auo,b133xtn01
+ # BOE OPTOELECTRONICS TECHNOLOGY 10.1" WXGA TFT LCD panel
+ - boe,nv101wxmn51
+ # BOE NV133FHM-N61 13.3" FHD (1920x1080) TFT LCD Panel
+ - boe,nv110wtm-n61
+ # BOE NV110WTM-N61 11.0" 2160x1440 TFT LCD Panel
+ - boe,nv133fhm-n61
+ # BOE NV133FHM-N62 13.3" FHD (1920x1080) TFT LCD Panel
+ - boe,nv133fhm-n62
+ # BOE NV140FHM-N49 14.0" FHD a-Si FT panel
+ - boe,nv140fhmn49
+ # Innolux Corporation 11.6" WXGA (1366x768) TFT LCD panel
+ - innolux,n116bca-ea1
+ # Innolux Corporation 11.6" WXGA (1366x768) TFT LCD panel
+ - innolux,n116bge
+ # InnoLux 13.3" FHD (1920x1080) eDP TFT LCD panel
+ - innolux,n125hce-gn1
+ # Innolux P120ZDG-BF1 12.02 inch eDP 2K display panel
+ - innolux,p120zdg-bf1
+ # King & Display KD116N21-30NV-A010 eDP TFT LCD panel
+ - kingdisplay,kd116n21-30nv-a010
+ # LG LP079QX1-SP0V 7.9" (1536x2048 pixels) TFT LCD panel
+ - lg,lp079qx1-sp0v
+ # LG 9.7" (2048x1536 pixels) TFT LCD panel
+ - lg,lp097qx1-spa1
+ # LG 12.0" (1920x1280 pixels) TFT LCD panel
+ - lg,lp120up1
+ # LG 12.9" (2560x1700 pixels) TFT LCD panel
+ - lg,lp129qe
+ # NewEast Optoelectronics CO., LTD WJFH116008A eDP TFT LCD panel
+ - neweast,wjfh116008a
+ # Samsung 12.2" (2560x1600 pixels) TFT LCD panel
+ - samsung,lsn122dl01-c01
+ # Samsung Electronics 14" WXGA (1366x768) TFT LCD panel
+ - samsung,ltn140at29-301
+ # Sharp LD-D5116Z01B 12.3" WUXGA+ eDP panel
+ - sharp,ld-d5116z01b
+ # Sharp 12.3" (2400x1600 pixels) TFT LCD panel
+ - sharp,lq123p1jx31
+
+ backlight: true
+ ddc-i2c-bus: true
+ enable-gpios: true
+ panel-timing: true
+ port: true
+ power-supply: true
+ no-hpd: true
+ hpd-gpios: true
+
+additionalProperties: false
+
+required:
+ - compatible
+ - power-supply
+
+examples:
+ - |
+ panel: panel {
+ compatible = "innolux,n116bge";
+ power-supply = <&panel_regulator>;
+ backlight = <&backlight>;
+
+ panel-timing {
+ clock-frequency = <74250000>;
+ hactive = <1366>;
+ hfront-porch = <136>;
+ hback-porch = <60>;
+ hsync-len = <30>;
+ hsync-active = <0>;
+ vactive = <768>;
+ vfront-porch = <8>;
+ vback-porch = <12>;
+ vsync-len = <12>;
+ vsync-active = <0>;
+ };
+
+ port {
+ panel_in_edp: endpoint {
+ remote-endpoint = <&edp_out_panel>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/display/panel/panel-lvds.yaml b/Documentation/devicetree/bindings/display/panel/panel-lvds.yaml
index 929fe046d1e7..dbc01e640895 100644
--- a/Documentation/devicetree/bindings/display/panel/panel-lvds.yaml
+++ b/Documentation/devicetree/bindings/display/panel/panel-lvds.yaml
@@ -39,8 +39,28 @@ properties:
compatible:
items:
- enum:
+ # Admatec 9904379 10.1" 1024x600 LVDS panel
+ - admatec,9904379
+ # Ampire AMP19201200B5TZQW-T03 10.1" WUXGA (1920x1200) color TFT LCD panel
+ - ampire,amp19201200b5tzqw-t03
- auo,b101ew05
+ # AUO G084SN05 V9 8.4" 800x600 LVDS panel
+ - auo,g084sn05
+ # Chunghwa Picture Tubes Ltd. 7" WXGA (800x1280) TFT LCD LVDS panel
+ - chunghwa,claa070wp03xg
+ # EDT ETML0700Z8DHA 7.0" Full HD (1920x1080) color TFT LCD LVDS panel
+ - edt,etml0700z8dha
+ # EDT ETML0700Z9NDHA 7.0" WSVGA (1024x600) color TFT LCD LVDS panel
+ - edt,etml0700z9ndha
+ # HannStar Display Corp. HSD101PWW2 10.1" WXGA (1280x800) LVDS panel
+ - hannstar,hsd101pww2
+ # Hydis Technologies 7" WXGA (800x1280) TFT LCD LVDS panel
+ - hydis,hv070wx2-1e0
+ # Jenson Display BL-JT60050-01A 7" WSVGA (1024x600) color TFT LCD LVDS panel
+ - jenson,bl-jt60050-01a
- tbs,a711-panel
+ # Winstar WF70A8SYJHLNGA 7" WSVGA (1024x600) color TFT LCD LVDS panel
+ - winstar,wf70a8syjhlnga
- const: panel-lvds
diff --git a/Documentation/devicetree/bindings/display/panel/panel-mipi-dbi-spi.yaml b/Documentation/devicetree/bindings/display/panel/panel-mipi-dbi-spi.yaml
index 9b701df5e9d2..6f0290c4e291 100644
--- a/Documentation/devicetree/bindings/display/panel/panel-mipi-dbi-spi.yaml
+++ b/Documentation/devicetree/bindings/display/panel/panel-mipi-dbi-spi.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause)
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/panel/panel-mipi-dbi-spi.yaml#
@@ -50,6 +50,12 @@ description: |
| Command or data |
|<D7><D6><D5><D4><D3><D2><D1><D0>|
+ The standard defines one pixel format for type C: RGB111. The industry
+ however has decided to provide the type A/B interface pixel formats also on
+ the Type C interface and most common among these are RGB565 and RGB666.
+ The MIPI DCS command set_address_mode (36h) has one bit that controls RGB/BGR
+ order. This gives each supported RGB format a BGR variant.
+
The panel resolution is specified using the panel-timing node properties
hactive (width) and vactive (height). The other mandatory panel-timing
properties should be set to zero except clock-frequency which can be
@@ -66,9 +72,14 @@ properties:
compatible:
items:
- enum:
+ - saef,sftc154b
- sainsmart18
+ - shineworld,lh133k
- const: panel-mipi-dbi-spi
+ reg:
+ maxItems: 1
+
write-only:
type: boolean
description:
@@ -86,6 +97,30 @@ properties:
Logic level supply for interface signals (Vddi).
No need to set if this is the same as power-supply.
+ spi-3wire: true
+
+ format:
+ description: >
+ Pixel format in bit order as going on the wire:
+ * `x2r1g1b1r1g1b1` - RGB111, 2 pixels per byte
+ * `x2b1g1r1b1g1r1` - BGR111, 2 pixels per byte
+ * `x1r1g1b1x1r1g1b1` - RGB111, 2 pixels per byte
+ * `x1b1g1r1x1b1g1r1` - BGR111, 2 pixels per byte
+ * `r5g6b5` - RGB565, 2 bytes
+ * `b5g6r5` - BGR565, 2 bytes
+ * `r6x2g6x2b6x2` - RGB666, 3 bytes
+ * `b6x2g6x2r6x2` - BGR666, 3 bytes
+ enum:
+ - x2r1g1b1r1g1b1
+ - x2b1g1r1b1g1r1
+ - x1r1g1b1x1r1g1b1
+ - x1b1g1r1x1b1g1r1
+ - r5g6b5
+ - b5g6r5
+ - r6x2g6x2b6x2
+ - b6x2g6x2r6x2
+ default: r5g6b5
+
required:
- compatible
- reg
@@ -112,6 +147,8 @@ examples:
reset-gpios = <&gpio 25 GPIO_ACTIVE_HIGH>;
write-only;
+ format = "r5g6b5";
+
backlight = <&backlight>;
width-mm = <35>;
diff --git a/Documentation/devicetree/bindings/display/panel/panel-simple-dsi.yaml b/Documentation/devicetree/bindings/display/panel/panel-simple-dsi.yaml
index 90c04cff8281..8d668979b62d 100644
--- a/Documentation/devicetree/bindings/display/panel/panel-simple-dsi.yaml
+++ b/Documentation/devicetree/bindings/display/panel/panel-simple-dsi.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause)
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/panel/panel-simple-dsi.yaml#
@@ -19,6 +19,9 @@ description: |
If the panel is more advanced a dedicated binding file is required.
+allOf:
+ - $ref: panel-common.yaml#
+
properties:
compatible:
@@ -36,22 +39,24 @@ properties:
- jdi,fhd-r63452
# Khadas TS050 5" 1080x1920 LCD panel
- khadas,ts050
+ # Khadas TS050 V2 5" 1080x1920 LCD panel
+ - khadas,ts050v2
# Kingdisplay KD097D04 9.7" 1536x2048 TFT LCD panel
- kingdisplay,kd097d04
# LG ACX467AKM-7 4.95" 1080×1920 LCD Panel
- lg,acx467akm-7
- # LG Corporation 7" WXGA TFT LCD panel
- - lg,ld070wx3-sl01
+ # LG Corporation 5" HD TFT LCD panel
+ - lg,lh500wx1-sd03
+ # Lincoln LCD197 5" 1080x1920 LCD panel
+ - lincolntech,lcd197
# One Stop Displays OSD101T2587-53TS 10.1" 1920x1200 panel
- osddisplays,osd101t2587-53ts
# Panasonic 10" WUXGA TFT LCD panel
- panasonic,vvx10f004b00
# Panasonic 10" WUXGA TFT LCD panel
- panasonic,vvx10f034n00
- # Samsung s6e3fc2x01 1080x2340 AMOLED panel
- - samsung,s6e3fc2x01
- # Samsung sofef00 1080x2280 AMOLED panel
- - samsung,sofef00
+ # Samsung s6e3fa7 1080x2220 based AMS559NK06 AMOLED panel
+ - samsung,s6e3fa7-ams559nk06
# Shangai Top Display Optoelectronics 7" TL070WSH30 1024x600 TFT LCD panel
- tdo,tl070wsh30
@@ -64,31 +69,12 @@ properties:
reset-gpios: true
port: true
power-supply: true
- vddio-supply: true
-
-allOf:
- - $ref: panel-common.yaml#
- - if:
- properties:
- compatible:
- enum:
- - samsung,s6e3fc2x01
- - samsung,sofef00
- then:
- properties:
- power-supply: false
- required:
- - vddio-supply
- else:
- properties:
- vddio-supply: false
- required:
- - power-supply
additionalProperties: false
required:
- compatible
+ - power-supply
- reg
examples:
diff --git a/Documentation/devicetree/bindings/display/panel/panel-simple-lvds-dual-ports.yaml b/Documentation/devicetree/bindings/display/panel/panel-simple-lvds-dual-ports.yaml
new file mode 100644
index 000000000000..548f5ac14500
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/panel-simple-lvds-dual-ports.yaml
@@ -0,0 +1,106 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/panel-simple-lvds-dual-ports.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Simple LVDS panels with one power supply and dual LVDS ports
+
+maintainers:
+ - Liu Ying <victor.liu@nxp.com>
+ - Thierry Reding <thierry.reding@gmail.com>
+ - Sam Ravnborg <sam@ravnborg.org>
+
+description: |
+ This binding file is a collection of the LVDS panels that
+ has dual LVDS ports and requires only a single power-supply.
+ The first port receives odd pixels, and the second port receives even pixels.
+ There are optionally a backlight and an enable GPIO.
+ The panel may use an OF graph binding for the association to the display,
+ or it may be a direct child node of the display.
+
+ If the panel is more advanced a dedicated binding file is required.
+
+allOf:
+ - $ref: /schemas/display/lvds-dual-ports.yaml#
+ - $ref: panel-common.yaml#
+
+properties:
+
+ compatible:
+ enum:
+ # compatible must be listed in alphabetical order, ordered by compatible.
+ # The description in the comment is mandatory for each compatible.
+
+ # AU Optronics Corporation 13.3" FHD (1920x1080) TFT LCD panel
+ - auo,g133han01
+ # AU Optronics Corporation 15.6" FHD (1920x1080) TFT LCD panel
+ - auo,g156han04
+ # AU Optronics Corporation 18.5" FHD (1920x1080) TFT LCD panel
+ - auo,g185han01
+ # AU Optronics Corporation 19.0" (1280x1024) TFT LCD panel
+ - auo,g190ean01
+ # BOE AV123Z7M-N17 12.3" (1920x720) LVDS TFT LCD panel
+ - boe,av123z7m-n17
+ # Kaohsiung Opto-Electronics Inc. 10.1" WUXGA (1920 x 1200) LVDS TFT LCD panel
+ - koe,tx26d202vm0bwa
+ # Lincoln Technology Solutions, LCD185-101CT 10.1" TFT 1920x1200
+ - lincolntech,lcd185-101ct
+ # Microtips Technology MF-101HIEBCAF0 10.1" WUXGA (1920x1200) TFT LCD panel
+ - microtips,mf-101hiebcaf0
+ # Microtips Technology MF-103HIEB0GA0 10.25" 1920x720 TFT LCD panel
+ - microtips,mf-103hieb0ga0
+ # NLT Technologies, Ltd. 15.6" FHD (1920x1080) LVDS TFT LCD panel
+ - nlt,nl192108ac18-02d
+
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+
+ properties:
+ port@0:
+ required:
+ - dual-lvds-odd-pixels
+
+ port@1:
+ required:
+ - dual-lvds-even-pixels
+
+ required:
+ - port@0
+ - port@1
+
+unevaluatedProperties: false
+
+required:
+ - compatible
+ - power-supply
+
+examples:
+ - |
+ panel: panel-lvds {
+ compatible = "koe,tx26d202vm0bwa";
+ power-supply = <&vdd_lcd_reg>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ dual-lvds-odd-pixels;
+ reg = <0>;
+
+ panel_lvds0_in: endpoint {
+ remote-endpoint = <&lvds0_out>;
+ };
+ };
+
+ port@1 {
+ dual-lvds-even-pixels;
+ reg = <1>;
+
+ panel_lvds1_in: endpoint {
+ remote-endpoint = <&lvds1_out>;
+ };
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/display/panel/panel-simple.yaml b/Documentation/devicetree/bindings/display/panel/panel-simple.yaml
index 01560fe226dd..24e277b19094 100644
--- a/Documentation/devicetree/bindings/display/panel/panel-simple.yaml
+++ b/Documentation/devicetree/bindings/display/panel/panel-simple.yaml
@@ -21,9 +21,9 @@ description: |
allOf:
- $ref: panel-common.yaml#
+ - $ref: ../lvds-data-mapping.yaml#
properties:
-
compatible:
enum:
# compatible must be listed in alphabetical order, ordered by compatible.
@@ -33,62 +33,50 @@ properties:
- ampire,am-1280800n3tzqw-t00h
# Ampire AM-480272H3TMQW-T01H 4.3" WQVGA TFT LCD panel
- ampire,am-480272h3tmqw-t01h
+ # Ampire AM-800480L1TMQW-T00H 5" WVGA TFT LCD panel
+ - ampire,am-800480l1tmqw-t00h
# Ampire AM-800480R3TMQW-A1H 7.0" WVGA TFT LCD panel
- ampire,am800480r3tmqwa1h
# Ampire AM-800600P5TMQW-TB8H 8.0" SVGA TFT LCD panel
- ampire,am800600p5tmqw-tb8h
# AU Optronics Corporation 10.1" WSVGA TFT LCD panel
- auo,b101aw03
- # AU Optronics Corporation 10.1" WSVGA TFT LCD panel
- - auo,b101ean01
# AU Optronics Corporation 10.1" WXGA TFT LCD panel
- auo,b101xtn01
- # AUO B116XAK01 eDP TFT LCD panel
- - auo,b116xa01
# AU Optronics Corporation 11.6" HD (1366x768) color TFT-LCD panel
- auo,b116xw03
- # AU Optronics Corporation 13.3" FHD (1920x1080) color TFT-LCD panel
- - auo,b133han05
- # AU Optronics Corporation 13.3" FHD (1920x1080) color TFT-LCD panel
- - auo,b133htn01
- # AU Optronics Corporation 13.3" WXGA (1366x768) TFT LCD panel
- - auo,b133xtn01
- # AU Optronics Corporation 14.0" FHD (1920x1080) color TFT-LCD panel
- - auo,b140han06
# AU Optronics Corporation 7.0" FHD (800 x 480) TFT LCD panel
- auo,g070vvn01
# AU Optronics Corporation 10.1" (1280x800) color TFT LCD panel
- auo,g101evn010
# AU Optronics Corporation 10.4" (800x600) color TFT LCD panel
- auo,g104sn02
+ # AU Optronics Corporation 10.4" (800x600) color TFT LCD panel
+ - auo,g104stn01
# AU Optronics Corporation 12.1" (1280x800) TFT LCD panel
- auo,g121ean01
- # AU Optronics Corporation 13.3" FHD (1920x1080) TFT LCD panel
- - auo,g133han01
# AU Optronics Corporation 15.6" (1366x768) TFT LCD panel
- auo,g156xtn01
- # AU Optronics Corporation 18.5" FHD (1920x1080) TFT LCD panel
- - auo,g185han01
- # AU Optronics Corporation 19.0" (1280x1024) TFT LCD panel
- - auo,g190ean01
+ # AU Optronics Corporation 23.8" FHD (1920x1080) TFT LCD panel
+ - auo,p238han01
# AU Optronics Corporation 31.5" FHD (1920x1080) TFT LCD panel
- auo,p320hvn03
# AU Optronics Corporation 21.5" FHD (1920x1080) color TFT LCD panel
- auo,t215hvn01
# Shanghai AVIC Optoelectronics 7" 1024x600 color TFT-LCD panel
- avic,tm070ddh03
+ # BOE AV101HDT-a10 10.1" 1280x720 LVDS panel
+ - boe,av101hdt-a10
+ # BOE BP082WX1-100 8.2" WXGA (1280x800) LVDS panel
+ - boe,bp082wx1-100
+ # BOE BP101WX1-100 10.1" WXGA (1280x800) LVDS panel
+ - boe,bp101wx1-100
+ # BOE EV121WXM-N10-1850 12.1" WXGA (1280x800) TFT LCD panel
+ - boe,ev121wxm-n10-1850
# BOE HV070WSA-100 7.01" WSVGA TFT LCD panel
- boe,hv070wsa-100
- # BOE OPTOELECTRONICS TECHNOLOGY 10.1" WXGA TFT LCD panel
- - boe,nv101wxmn51
- # BOE NV133FHM-N61 13.3" FHD (1920x1080) TFT LCD Panel
- - boe,nv110wtm-n61
- # BOE NV110WTM-N61 11.0" 2160x1440 TFT LCD Panel
- - boe,nv133fhm-n61
- # BOE NV133FHM-N62 13.3" FHD (1920x1080) TFT LCD Panel
- - boe,nv133fhm-n62
- # BOE NV140FHM-N49 14.0" FHD a-Si FT panel
- - boe,nv140fhmn49
+ # Crystal Clear Technology CMT430B19N00 4.3" 480x272 TFT-LCD panel
+ - cct,cmt430b19n00
# CDTech(H.K.) Electronics Limited 4.3" 480x272 color TFT-LCD panel
- cdtech,s043wq26h-ct7
# CDTech(H.K.) Electronics Limited 7" WSVGA (1024x600) TFT LCD Panel
@@ -99,8 +87,6 @@ properties:
- cdtech,s070wv95-ct16
# Chefree CH101OLHLWH-002 10.1" (1280x800) color TFT LCD panel
- chefree,ch101olhlwh-002
- # Chunghwa Picture Tubes Ltd. 7" WXGA TFT LCD panel
- - chunghwa,claa070wp03xg
# Chunghwa Picture Tubes Ltd. 10.1" WXGA TFT LCD panel
- chunghwa,claa101wa01a
# Chunghwa Picture Tubes Ltd. 10.1" WXGA TFT LCD panel
@@ -143,11 +129,15 @@ properties:
- edt,etm0700g0edh6
# Emerging Display Technology Corp. LVDS WSVGA TFT Display with capacitive touch
- edt,etml0700y5dha
+ # Emerging Display Technology Corp. 10.1" LVDS WXGA TFT Display with capacitive touch
+ - edt,etml1010g3dra
# Emerging Display Technology Corp. 5.7" VGA TFT LCD panel with
# capacitive touch
- edt,etmv570g2dhu
# E Ink VB3300-KCA
- eink,vb3300-kca
+ # Evervision Electronics Co. Ltd. VGG644804 5.7" VGA TFT LCD Panel
+ - evervision,vgg644804
# Evervision Electronics Co. Ltd. VGG804821 5.0" WVGA TFT LCD Panel
- evervision,vgg804821
# Foxlink Group 5" WVGA TFT LCD panel
@@ -164,16 +154,16 @@ properties:
- hannstar,hsd070pww1
# HannStar Display Corp. HSD100PXN1 10.1" XGA LVDS panel
- hannstar,hsd100pxn1
- # HannStar Display Corp. HSD101PWW2 10.1" WXGA (1280x800) LVDS panel
- - hannstar,hsd101pww2
# Hitachi Ltd. Corporation 9" WVGA (800x480) TFT LCD panel
- hit,tx23d38vm0caa
- # InfoVision Optoelectronics M133NWF4 R0 13.3" FHD (1920x1080) TFT LCD panel
- - ivo,m133nwf4-r0
# Innolux AT043TN24 4.3" WQVGA TFT LCD panel
- innolux,at043tn24
# Innolux AT070TN92 7.0" WQVGA TFT LCD panel
- innolux,at070tn92
+ # Innolux G070ACE-L01 7" WVGA (800x480) TFT LCD panel
+ - innolux,g070ace-l01
+ # Innolux G070ACE-LH3 7" WVGA (800x480) TFT LCD panel with WLED backlight
+ - innolux,g070ace-lh3
# Innolux G070Y2-L01 7" WVGA (800x480) TFT LCD panel
- innolux,g070y2-l01
# Innolux G070Y2-T02 7" WVGA (800x480) TFT LCD TTL panel
@@ -184,24 +174,20 @@ properties:
- innolux,g121i1-l01
# Innolux Corporation 12.1" G121X1-L03 XGA (1024x768) TFT LCD panel
- innolux,g121x1-l03
- # Innolux Corporation 11.6" WXGA (1366x768) TFT LCD panel
- - innolux,n116bca-ea1
- # Innolux Corporation 11.6" WXGA (1366x768) TFT LCD panel
- - innolux,n116bge
- # InnoLux 13.3" FHD (1920x1080) eDP TFT LCD panel
- - innolux,n125hce-gn1
+ # Innolux Corporation 12.1" G121XCE-L01 XGA (1024x768) TFT LCD panel
+ - innolux,g121xce-l01
+ # InnoLux 15.6" FHD (1920x1080) TFT LCD panel
+ - innolux,g156hce-l01
+ # InnoLux 13.3" FHD (1920x1080) TFT LCD panel
+ - innolux,n133hse-ea1
# InnoLux 15.6" WXGA TFT LCD panel
- innolux,n156bge-l21
- # Innolux P120ZDG-BF1 12.02 inch eDP 2K display panel
- - innolux,p120zdg-bf1
# Innolux Corporation 7.0" WSVGA (1024x600) TFT LCD panel
- innolux,zj070na-01p
- # King & Display KD116N21-30NV-A010 eDP TFT LCD panel
- - kingdisplay,kd116n21-30nv-a010
+ # JuTouch Technology Co.. 10" JT101TM023 WXGA (1280 x 800) LVDS panel
+ - jutouch,jt101tm023
# Kaohsiung Opto-Electronics Inc. 5.7" QVGA (320 x 240) TFT LCD panel
- koe,tx14d24vm1bpa
- # Kaohsiung Opto-Electronics Inc. 10.1" WUXGA (1920 x 1200) LVDS TFT LCD panel
- - koe,tx26d202vm0bwa
# Kaohsiung Opto-Electronics. TX31D200VM0BAA 12.3" HSXGA LVDS panel
- koe,tx31d200vm0baa
# Kyocera Corporation 7" WVGA (800x480) transmissive color TFT
@@ -212,16 +198,6 @@ properties:
- lemaker,bl035-rgb-002
# LG 7" (800x480 pixels) TFT LCD panel
- lg,lb070wv8
- # LG Corporation 5" HD TFT LCD panel
- - lg,lh500wx1-sd03
- # LG LP079QX1-SP0V 7.9" (1536x2048 pixels) TFT LCD panel
- - lg,lp079qx1-sp0v
- # LG 9.7" (2048x1536 pixels) TFT LCD panel
- - lg,lp097qx1-spa1
- # LG 12.0" (1920x1280 pixels) TFT LCD panel
- - lg,lp120up1
- # LG 12.9" (2560x1700 pixels) TFT LCD panel
- - lg,lp129qe
# Logic Technologies LT161010-2NHC 7" WVGA TFT Cap Touch Module
- logictechno,lt161010-2nhc
# Logic Technologies LT161010-2NHR 7" WVGA TFT Resistive Touch Module
@@ -232,32 +208,44 @@ properties:
- logictechno,lttd800480070-l2rt
# Logic Technologies LTTD800480070-L6WH-RT 7” 800x480 TFT Resistive Touch Module
- logictechno,lttd800480070-l6wh-rt
+ # Microchip AC69T88A 5" 800X480 LVDS interface TFT LCD Panel
+ - microchip,ac69t88a
# Mitsubishi "AA070MC01 7.0" WVGA TFT LCD panel
- mitsubishi,aa070mc01-ca1
+ # Mitsubishi AA084XE01 8.4" XGA TFT LCD panel
+ - mitsubishi,aa084xe01
+ # Multi-Inno Technology Co.,Ltd MI0700A2T-30 7" 800x480 TFT Resistive Touch Module
+ - multi-inno,mi0700a2t-30
# Multi-Inno Technology Co.,Ltd MI0700S4T-6 7" 800x480 TFT Resistive Touch Module
- multi-inno,mi0700s4t-6
# Multi-Inno Technology Co.,Ltd MI0800FT-9 8" 800x600 TFT Resistive Touch Module
- multi-inno,mi0800ft-9
# Multi-Inno Technology Co.,Ltd MI1010AIT-1CP 10.1" 1280x800 LVDS IPS Cap Touch Mod.
- multi-inno,mi1010ait-1cp
+ # Multi-Inno Technology Co.,Ltd MI1010Z1T-1CP11 10.1" 1024x600 TFT Resistive Touch Module
+ - multi-inno,mi1010z1t-1cp11
# NEC LCD Technologies, Ltd. 12.1" WXGA (1280x800) LVDS TFT LCD panel
- nec,nl12880bc20-05
# NEC LCD Technologies,Ltd. WQVGA TFT LCD panel
- nec,nl4827hc19-05b
# Netron-DY E231732 7.0" WSVGA TFT LCD panel
- netron-dy,e231732
- # NewEast Optoelectronics CO., LTD WJFH116008A eDP TFT LCD panel
- - neweast,wjfh116008a
# Newhaven Display International 480 x 272 TFT LCD panel
- newhaven,nhd-4.3-480272ef-atxl
- # NLT Technologies, Ltd. 15.6" FHD (1920x1080) LVDS TFT LCD panel
- - nlt,nl192108ac18-02d
+ # NLT Technologies, Ltd. 12.1" WXGA (1280 x 800) LVDS TFT LCD panel
+ - nlt,nl12880bc20-spwg-24
+ # NLT Technologies, Ltd. 15.6" WXGA (1366×768) LVDS TFT LCD panel
+ - nlt,nl13676bc25-03f
# New Vision Display 7.0" 800 RGB x 480 TFT LCD panel
- nvd,9128
# OKAYA Electric America, Inc. RS800480T-7X0GP 7" WVGA LCD panel
- okaya,rs800480t-7x0gp
# Olimex 4.3" TFT LCD panel
- olimex,lcd-olinuxino-43-ts
+ # Olimex 5.0" TFT LCD panel
+ - olimex,lcd-olinuxino-5-cts
+ # On Tat Industrial Company 5" DPI TFT panel.
+ - ontat,kd50g21-40nt-a1
# On Tat Industrial Company 7" DPI TFT panel.
- ontat,yx700wv03
# OrtusTech COM37H3M05DTC Blanview 3.7" VGA portrait TFT-LCD panel
@@ -270,26 +258,32 @@ properties:
- osddisplays,osd070t1718-19ts
# One Stop Displays OSD101T2045-53TS 10.1" 1920x1200 panel
- osddisplays,osd101t2045-53ts
+ # POWERTIP PH128800T004-ZZA01 10.1" WXGA TFT LCD panel
+ - powertip,ph128800t004-zza01
+ # POWERTIP PH128800T006-ZHC01 10.1" WXGA TFT LCD panel
+ - powertip,ph128800t006-zhc01
# POWERTIP PH800480T013-IDF2 7.0" WVGA TFT LCD panel
- powertip,ph800480t013-idf02
+ # PrimeView PM070WL4 7.0" 800x480 TFT LCD panel
+ - primeview,pm070wl4
# QiaoDian XianShi Corporation 4"3 TFT LCD panel
- qiaodian,qd43003c0-40
# Shenzhen QiShenglong Industrialist Co., Ltd. Gopher 2b 4.3" 480(RGB)x272 TFT LCD panel
- qishenglong,gopher2b-lcd
+ # Raystar Optronics, Inc. RFF500F-AWH-DNN 5.0" TFT 840x480
+ - raystar,rff500f-awh-dnn
# Rocktech Displays Ltd. RK101II01D-CT 10.1" TFT 1280x800
- rocktech,rk101ii01d-ct
# Rocktech Display Ltd. RK070ER9427 800(RGB)x480 TFT LCD panel
- rocktech,rk070er9427
- # Samsung 13.3" FHD (1920x1080 pixels) eDP AMOLED panel
- - samsung,atna33xc20
- # Samsung 12.2" (2560x1600 pixels) TFT LCD panel
- - samsung,lsn122dl01-c01
+ # Rocktech Display Ltd. RK043FN48H 4.3" 480x272 LCD-TFT panel
+ - rocktech,rk043fn48h
# Samsung Electronics 10.1" WXGA (1280x800) TFT LCD panel
- samsung,ltl101al01
+ # Samsung Electronics 10.6" FWXGA (1366x768) TFT LCD panel
+ - samsung,ltl106al01
# Samsung Electronics 10.1" WSVGA TFT LCD panel
- samsung,ltn101nt05
- # Samsung Electronics 14" WXGA (1366x768) TFT LCD panel
- - samsung,ltn140at29-301
# Satoz SAT050AT40H12R2 5.0" WVGA TFT LCD panel
- satoz,sat050at40h12r2
# Sharp LQ035Q7DB03 3.5" QVGA TFT LCD panel
@@ -298,28 +292,28 @@ properties:
- sharp,lq070y3dg3b
# Sharp Display Corp. LQ101K1LY04 10.07" WXGA TFT LCD panel
- sharp,lq101k1ly04
- # Sharp 12.3" (2400x1600 pixels) TFT LCD panel
- - sharp,lq123p1jx31
- # Sharp 14" (1920x1080 pixels) TFT LCD panel
- - sharp,lq140m1jw46
# Sharp LS020B1DD01D 2.0" HQVGA TFT LCD panel
- sharp,ls020b1dd01d
# Shelly SCA07010-BFN-LNN 7.0" WVGA TFT LCD panel
- shelly,sca07010-bfn-lnn
# Starry KR070PE2T 7" WVGA TFT LCD panel
- starry,kr070pe2t
- # Starry 12.2" (1920x1200 pixels) TFT LCD panel
- - starry,kr122ea0sra
# Startek KD070WVFPA043-C069A 7" TFT LCD panel
- startek,kd070wvfpa
# Team Source Display Technology TST043015CMHX 4.3" WQVGA TFT LCD panel
- team-source-display,tst043015cmhx
+ # Tianma Micro-electronics P0700WXF1MBAA 7.0" WXGA (1280x800) LVDS TFT LCD panel
+ - tianma,p0700wxf1mbaa
# Tianma Micro-electronics TM070JDHG30 7.0" WXGA TFT LCD panel
- tianma,tm070jdhg30
+ # Tianma Micro-electronics TM070JDHG34-00 7.0" WXGA (1280x800) LVDS TFT LCD panel
+ - tianma,tm070jdhg34-00
# Tianma Micro-electronics TM070JVHG33 7.0" WXGA TFT LCD panel
- tianma,tm070jvhg33
# Tianma Micro-electronics TM070RVHG71 7.0" WXGA TFT LCD panel
- tianma,tm070rvhg71
+ # Topland TIAN-G07017-01 7.0" WSVGA TFT-LCD panel with capacitive touch
+ - topland,tian-g07017-01
# Toshiba 8.9" WXGA (1280x768) TFT LCD panel
- toshiba,lt089ac29000
# TPK U.S.A. LLC Fusion 7" 800 x 480 (WVGA) LCD panel with capacitive touch
@@ -339,20 +333,26 @@ properties:
- vivax,tpc9150-panel
# VXT 800x480 color TFT LCD panel
- vxt,vl050-8048nt-c01
+ # Waveshare 13.3" FHD (1920x1080) LCD panel
+ - waveshare,13.3inch-panel
+ # Waveshare 7.0" WSVGA (1024x600) LCD panel
+ - waveshare,7.0inch-c-panel
# Winstar Display Corporation 3.5" QVGA (320x240) TFT LCD panel
- winstar,wf35ltiacd
# Yes Optoelectronics YTC700TLAG-05-201C 7" TFT LCD panel
- yes-optoelectronics,ytc700tlag-05-201c
- backlight: true
- ddc-i2c-bus: true
- enable-gpios: true
- port: true
- power-supply: true
- no-hpd: true
- hpd-gpios: true
+if:
+ not:
+ properties:
+ compatible:
+ contains:
+ const: innolux,g101ice-l01
+then:
+ properties:
+ data-mapping: false
-additionalProperties: false
+unevaluatedProperties: false
required:
- compatible
@@ -370,3 +370,16 @@ examples:
};
};
};
+ - |
+ panel_lvds: panel-lvds {
+ compatible = "innolux,g101ice-l01";
+ power-supply = <&vcc_lcd_reg>;
+
+ data-mapping = "jeida-24";
+
+ port {
+ panel_in_lvds: endpoint {
+ remote-endpoint = <&ltdc_out_lvds>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/display/panel/panel-timing.yaml b/Documentation/devicetree/bindings/display/panel/panel-timing.yaml
index aea69b84ca5d..8c9774458777 100644
--- a/Documentation/devicetree/bindings/display/panel/panel-timing.yaml
+++ b/Documentation/devicetree/bindings/display/panel/panel-timing.yaml