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2024-01-17Merge patch series "riscv: ftrace: Miscellaneous ftrace improvements"Palmer Dabbelt
Björn Töpel <bjorn@kernel.org> says: This series includes a three ftrace improvements for RISC-V: 1. Do not require to run recordmcount at build time (patch 1) 2. Simplification of the function graph functionality (patch 2) 3. Enable DYNAMIC_FTRACE_WITH_DIRECT_CALLS (patch 3 and 4) The series has been tested on Qemu/rv64 virt/Debian sid with the following test configs: CONFIG_FTRACE_SELFTEST=y CONFIG_FTRACE_STARTUP_TEST=y CONFIG_SAMPLE_FTRACE_DIRECT=m CONFIG_SAMPLE_FTRACE_DIRECT_MULTI=m CONFIG_SAMPLE_FTRACE_OPS=m All tests pass. * b4-shazam-merge: samples: ftrace: Add RISC-V support for SAMPLE_FTRACE_DIRECT[_MULTI] riscv: ftrace: Add DYNAMIC_FTRACE_WITH_DIRECT_CALLS support riscv: ftrace: Make function graph use ftrace directly riscv: select FTRACE_MCOUNT_USE_PATCHABLE_FUNCTION_ENTRY Link: https://lore.kernel.org/r/20231130121531.1178502-1-bjorn@kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-01-17samples: ftrace: Add RISC-V support for SAMPLE_FTRACE_DIRECT[_MULTI]Song Shuai
Add RISC-V variants of the ftrace-direct* samples. Tested-by: Evgenii Shatokhin <e.shatokhin@yadro.com> Signed-off-by: Song Shuai <suagrfillet@gmail.com> Tested-by: Guo Ren <guoren@kernel.org> Signed-off-by: Guo Ren <guoren@kernel.org> Acked-by: Björn Töpel <bjorn@rivosinc.com> Link: https://lore.kernel.org/r/20231130121531.1178502-5-bjorn@kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-01-17riscv: ftrace: Add DYNAMIC_FTRACE_WITH_DIRECT_CALLS supportSong Shuai
Select the DYNAMIC_FTRACE_WITH_DIRECT_CALLS to provide the register_ftrace_direct[_multi] interfaces allowing users to register the customed trampoline (direct_caller) as the mcount for one or more target functions. And modify_ftrace_direct[_multi] are also provided for modifying direct_caller. To make the direct_caller and the other ftrace hooks (e.g. function/fgraph tracer, k[ret]probes) co-exist, a temporary register is nominated to store the address of direct_caller in ftrace_regs_caller. After the setting of the address direct_caller by direct_ops->func and the RESTORE_REGS in ftrace_regs_caller, direct_caller will be jumped to by the `jr` inst. Add DYNAMIC_FTRACE_WITH_DIRECT_CALLS support for RISC-V. Signed-off-by: Song Shuai <suagrfillet@gmail.com> Tested-by: Guo Ren <guoren@kernel.org> Signed-off-by: Guo Ren <guoren@kernel.org> Acked-by: Björn Töpel <bjorn@rivosinc.com> Link: https://lore.kernel.org/r/20231130121531.1178502-4-bjorn@kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-01-17riscv: ftrace: Make function graph use ftrace directlySong Shuai
Similar to commit 0c0593b45c9b ("x86/ftrace: Make function graph use ftrace directly") and commit c4a0ebf87ceb ("arm64/ftrace: Make function graph use ftrace directly"), RISC-V has no need for a special graph tracer hook. The graph_ops::func function can be used to install the return_hooker. This cleanup only changes the FTRACE_WITH_REGS implementation, leaving the mcount-based implementation is unaffected. Perform the simplification, and also cleanup the register save/restore macros. Signed-off-by: Song Shuai <suagrfillet@gmail.com> Tested-by: Guo Ren <guoren@kernel.org> Signed-off-by: Guo Ren <guoren@kernel.org> Acked-by: Björn Töpel <bjorn@rivosinc.com> Link: https://lore.kernel.org/r/20231130121531.1178502-3-bjorn@kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-01-17riscv: select FTRACE_MCOUNT_USE_PATCHABLE_FUNCTION_ENTRYSong Shuai
In commit afc76b8b8011 ("riscv: Using PATCHABLE_FUNCTION_ENTRY instead of MCOUNT") RISC-V added support for -fpatchable-function-entry, which removes the need for recordmcount. Select FTRACE_MCOUNT_USE_PATCHABLE_FUNCTION_ENTRY to tell the build system not to run recordmcount. Link: https://lore.kernel.org/linux-riscv/CAAYs2=j3Eak9vU6xbAw0zPuoh00rh8v5C2U3fePkokZFibWs2g@mail.gmail.com/T/#t Link: https://lore.kernel.org/linux-riscv/Y4jtfrJt+%2FQ5nMOz@spud/ Signed-off-by: Song Shuai <suagrfillet@gmail.com> Tested-by: Guo Ren <guoren@kernel.org> Signed-off-by: Guo Ren <guoren@kernel.org> Acked-by: Björn Töpel <bjorn@rivosinc.com> Link: https://lore.kernel.org/r/20231130121531.1178502-2-bjorn@kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-01-17Merge patch series "RISC-V: Disable DWARF5 with known broken LLVM versions"Palmer Dabbelt
Nathan Chancellor <nathan@kernel.org> says: This series disables DWARF5 for LLVM versions where it is known to be broken due to linker relaxation. * b4-shazam-merge: lib/Kconfig.debug: Update AS_HAS_NON_CONST_LEB128 comment and name riscv: Restrict DWARF5 when building with LLVM to known working versions riscv: Hoist linker relaxation disabling logic into Kconfig Link: https://github.com/llvm/llvm-project/commit/bbc0f99f3bc96f1db16f649fc21dd18e5b0918f6 Link: https://lore.kernel.org/r/20231205-riscv-restrict-dwarf5-llvm-v2-0-aedf00a382ac@kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-01-17lib/Kconfig.debug: Update AS_HAS_NON_CONST_LEB128 comment and nameNathan Chancellor
Fangrui noted that the comment around CONFIG_AS_HAS_NON_CONST_LEB128 could be made more accurate because explicit .sleb128 directives are not emitted, only .uleb128 directives are. Rename the symbol to CONFIG_AS_HAS_NON_CONST_ULEB128 as a result. Further clarifications include replacing "symbol deltas" with the more accurate "label differences", noting that this issue has been resolved in newer binutils (2.41+), and it only occurs when a port uses RISC-V style linker relaxation. Suggested-by: Fangrui Song <maskray@google.com> Signed-off-by: Nathan Chancellor <nathan@kernel.org> Reviewed-by: Charlie Jenkins <charlie@rivosinc.com> Link: https://lore.kernel.org/r/20231205-riscv-restrict-dwarf5-llvm-v2-3-aedf00a382ac@kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-01-17riscv: Restrict DWARF5 when building with LLVM to known working versionsNathan Chancellor
LLVM prior to 18.0.0 would generate incorrect debug info for DWARF5 due to linker relaxation, which was worked around in clang by defaulting RISC-V to DWARF4 [1]. Unfortunately, this workaround does not work for the kernel because the DWARF version can be independently changed from the default in Kconfig. Do not allow DWARF5 to be selected for RISC-V when using linker relaxation (ld.lld >= 15.0.0) and a version of LLVM that does not have the fixes (the integrated assembler [2] and ld.lld [3] < 18.0.0) necessary to generate the correct debug info. Link: https://github.com/llvm/llvm-project/commit/bbc0f99f3bc96f1db16f649fc21dd18e5b0918f6 [1] Link: https://github.com/llvm/llvm-project/commit/1df5ea29b43690b6622db2cad7b745607ca4de6a [2] Link: https://github.com/llvm/llvm-project/commit/7ffabb61a5569444b5ac9322e22e5471cc5e4a77 [3] Signed-off-by: Nathan Chancellor <nathan@kernel.org> Reviewed-by: Fangrui Song <maskray@google.com> Link: https://lore.kernel.org/r/20231205-riscv-restrict-dwarf5-llvm-v2-2-aedf00a382ac@kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-01-17riscv: Hoist linker relaxation disabling logic into KconfigNathan Chancellor
Certain configurations may need to be disabled if linker relaxation is in use, such as DWARF5 with ld.lld < 18. Hoist the logic of whether or not linker relaxation is in use into Kconfig so decisions can be made at configuration time. Reviewed-by: Fangrui Song <maskray@google.com> Signed-off-by: Nathan Chancellor <nathan@kernel.org> Link: https://lore.kernel.org/r/20231205-riscv-restrict-dwarf5-llvm-v2-1-aedf00a382ac@kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-01-17Merge patch series "riscv: Add fine-tuned checksum functions"Palmer Dabbelt
Charlie Jenkins <charlie@rivosinc.com> says: Each architecture generally implements fine-tuned checksum functions to leverage the instruction set. This patch adds the main checksum functions that are used in networking. Tested on QEMU, this series allows the CHECKSUM_KUNIT tests to complete an average of 50.9% faster. This patch takes heavy use of the Zbb extension using alternatives patching. To test this patch, enable the configs for KUNIT, then CHECKSUM_KUNIT. I have attempted to make these functions as optimal as possible, but I have not ran anything on actual riscv hardware. My performance testing has been limited to inspecting the assembly, running the algorithms on x86 hardware, and running in QEMU. ip_fast_csum is a relatively small function so even though it is possible to read 64 bits at a time on compatible hardware, the bottleneck becomes the clean up and setup code so loading 32 bits at a time is actually faster. * b4-shazam-merge: kunit: Add tests for csum_ipv6_magic and ip_fast_csum riscv: Add checksum library riscv: Add checksum header riscv: Add static key for misaligned accesses asm-generic: Improve csum_fold Link: https://lore.kernel.org/r/20240108-optimize_checksum-v15-0-1c50de5f2167@rivosinc.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-01-17kunit: Add tests for csum_ipv6_magic and ip_fast_csumCharlie Jenkins
Supplement existing checksum tests with tests for csum_ipv6_magic and ip_fast_csum. Signed-off-by: Charlie Jenkins <charlie@rivosinc.com> Link: https://lore.kernel.org/r/20240108-optimize_checksum-v15-5-1c50de5f2167@rivosinc.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-01-17riscv: Add checksum libraryCharlie Jenkins
Provide a 32 and 64 bit version of do_csum. When compiled for 32-bit will load from the buffer in groups of 32 bits, and when compiled for 64-bit will load in groups of 64 bits. Additionally provide riscv optimized implementation of csum_ipv6_magic. Signed-off-by: Charlie Jenkins <charlie@rivosinc.com> Acked-by: Conor Dooley <conor.dooley@microchip.com> Reviewed-by: Xiao Wang <xiao.w.wang@intel.com> Link: https://lore.kernel.org/r/20240108-optimize_checksum-v15-4-1c50de5f2167@rivosinc.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-01-17riscv: Add checksum headerCharlie Jenkins
Provide checksum algorithms that have been designed to leverage riscv instructions such as rotate. In 64-bit, can take advantage of the larger register to avoid some overflow checking. Signed-off-by: Charlie Jenkins <charlie@rivosinc.com> Acked-by: Conor Dooley <conor.dooley@microchip.com> Reviewed-by: Xiao Wang <xiao.w.wang@intel.com> Link: https://lore.kernel.org/r/20240108-optimize_checksum-v15-3-1c50de5f2167@rivosinc.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-01-17riscv: Add static key for misaligned accessesCharlie Jenkins
Support static branches depending on the value of misaligned accesses. This will be used by a later patch in the series. At any point in time, this static branch will only be enabled if all online CPUs are considered "fast". Signed-off-by: Charlie Jenkins <charlie@rivosinc.com> Reviewed-by: Evan Green <evan@rivosinc.com> Link: https://lore.kernel.org/r/20240108-optimize_checksum-v15-2-1c50de5f2167@rivosinc.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-01-17asm-generic: Improve csum_foldCharlie Jenkins
This csum_fold implementation introduced into arch/arc by Vineet Gupta is better than the default implementation on at least arc, x86, and riscv. Using GCC trunk and compiling non-inlined version, this implementation has 41.6667%, 25% fewer instructions on riscv64, x86-64 respectively with -O3 optimization. Most implmentations override this default in asm, but this should be more performant than all of those other implementations except for arm which has barrel shifting and sparc32 which has a carry flag. Signed-off-by: Charlie Jenkins <charlie@rivosinc.com> Reviewed-by: David Laight <david.laight@aculab.com> Link: https://lore.kernel.org/r/20240108-optimize_checksum-v15-1-1c50de5f2167@rivosinc.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-01-17RISC-V: selftests: cbo: Ensure asm operands match constraintsAndrew Jones
The 'i' constraint expects a constant operand, which fn and its constant derivative MK_CBO(fn) are, but passing fn through a function as a parameter and using a local variable for MK_CBO(fn) allow the compiler to lose sight of that when no optimization is done. Use a macro instead of a function and skip the local variable to ensure the compiler uses constants, matching the asm constraints. Reported-by: Yunhui Cui <cuiyunhui@bytedance.com> Closes: https://lore.kernel.org/all/20240117082514.42967-1-cuiyunhui@bytedance.com Fixes: a29e2a48afe3 ("RISC-V: selftests: Add CBO tests") Signed-off-by: Andrew Jones <ajones@ventanamicro.com> Link: https://lore.kernel.org/r/20240117130933.57514-2-ajones@ventanamicro.com Cc: stable@vger.kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-01-17Merge tag 'char-misc-6.8-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc and other driver updates from Greg KH: "Here is the big set of char/misc and other driver subsystem changes for 6.8-rc1. Other than lots of binder driver changes (as you can see by the merge conflicts) included in here are: - lots of iio driver updates and additions - spmi driver updates - eeprom driver updates - firmware driver updates - ocxl driver updates - mhi driver updates - w1 driver updates - nvmem driver updates - coresight driver updates - platform driver remove callback api changes - tags.sh script updates - bus_type constant marking cleanups - lots of other small driver updates All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (341 commits) android: removed duplicate linux/errno uio: Fix use-after-free in uio_open drivers: soc: xilinx: add check for platform firmware: xilinx: Export function to use in other module scripts/tags.sh: remove find_sources scripts/tags.sh: use -n to test archinclude scripts/tags.sh: add local annotation scripts/tags.sh: use more portable -path instead of -wholename scripts/tags.sh: Update comment (addition of gtags) firmware: zynqmp: Convert to platform remove callback returning void firmware: turris-mox-rwtm: Convert to platform remove callback returning void firmware: stratix10-svc: Convert to platform remove callback returning void firmware: stratix10-rsu: Convert to platform remove callback returning void firmware: raspberrypi: Convert to platform remove callback returning void firmware: qemu_fw_cfg: Convert to platform remove callback returning void firmware: mtk-adsp-ipc: Convert to platform remove callback returning void firmware: imx-dsp: Convert to platform remove callback returning void firmware: coreboot_table: Convert to platform remove callback returning void firmware: arm_scpi: Convert to platform remove callback returning void firmware: arm_scmi: Convert to platform remove callback returning void ...
2024-01-17Merge tag 'pci-v6.8-changes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci Pull pci updates from Bjorn Helgaas: "Enumeration: - Reserve ECAM so we don't assign it to PCI BARs; this works around bugs where BIOS included ECAM in a PNP0A03 host bridge window, didn't reserve it via a PNP0C02 motherboard device, and didn't allocate space for SR-IOV VF BARs (Bjorn Helgaas) - Add MMCONFIG/ECAM debug logging (Bjorn Helgaas) - Rename 'MMCONFIG' to 'ECAM' to match spec usage (Bjorn Helgaas) - Log device type (Root Port, Switch Port, etc) during enumeration (Bjorn Helgaas) - Log bridges before downstream devices so the dmesg order is more logical (Bjorn Helgaas) - Log resource names (BAR 0, VF BAR 0, bridge window, etc) consistently instead of a mix of names and "reg 0x10" (Puranjay Mohan, Bjorn Helgaas) - Fix 64GT/s effective data rate calculation to use 1b/1b encoding rather than the 8b/10b or 128b/130b used by lower rates (Ilpo Järvinen) - Use PCI_HEADER_TYPE_* instead of literals in x86, powerpc, SCSI lpfc (Ilpo Järvinen) - Clean up open-coded PCIBIOS return code mangling (Ilpo Järvinen) Resource management: - Restructure pci_dev_for_each_resource() to avoid computing the address of an out-of-bounds array element (the bounds check was performed later so the element was never actually *read*, but it's nicer to avoid even computing an out-of-bounds address) (Andy Shevchenko) Driver binding: - Convert pci-host-common.c platform .remove() callback to .remove_new() returning 'void' since it's not useful to return error codes here (Uwe Kleine-König) - Convert exynos, keystone, kirin from .remove() to .remove_new(), which returns void instead of int (Uwe Kleine-König) - Drop unused struct pci_driver.node member (Mathias Krause) Virtualization: - Add ACS quirk for more Zhaoxin Root Ports (LeoLiuoc) Error handling: - Log AER errors as "Correctable" (not "Corrected") or "Uncorrectable" to match spec terminology (Bjorn Helgaas) - Decode Requester ID when no error info found instead of printing the raw hex value (Bjorn Helgaas) Endpoint framework: - Use a unique test pattern for each BAR in the pci_endpoint_test to make it easier to debug address translation issues (Niklas Cassel) Broadcom STB PCIe controller driver: - Add DT property "brcm,clkreq-mode" and driver support for different CLKREQ# modes to make ASPM L1.x states possible (Jim Quinlan) Freescale Layerscape PCIe controller driver: - Add suspend/resume support for Layerscape LS1043a and LS1021a, including software-managed PME_Turn_Off and transitions between L0, L2/L3_Ready Link states (Frank Li) MediaTek PCIe controller driver: - Clear MSI interrupt status before handler to avoid missing MSIs that occur after the handler (qizhong cheng) MediaTek PCIe Gen3 controller driver: - Update mediatek-gen3 translation window setup to handle MMIO space that is not a power of two in size (Jianjun Wang) Qualcomm PCIe controller driver: - Increase qcom iommu-map maxItems to accommodate SDX55 (five entries) and SDM845 (sixteen entries) (Krzysztof Kozlowski) - Describe qcom,pcie-sc8180x clocks and resets accurately (Krzysztof Kozlowski) - Describe qcom,pcie-sm8150 clocks and resets accurately (Krzysztof Kozlowski) - Correct the qcom "reset-name" property, previously incorrectly called "reset-names" (Krzysztof Kozlowski) - Document qcom,pcie-sm8650, based on qcom,pcie-sm8550 (Neil Armstrong) Renesas R-Car PCIe controller driver: - Replace of_device.h with explicit of.h include to untangle header usage (Rob Herring) - Add DT and driver support for optional miniPCIe 1.5v and 3.3v regulators on KingFisher (Wolfram Sang) SiFive FU740 PCIe controller driver: - Convert fu740 CONFIG_PCIE_FU740 dependency from SOC_SIFIVE to ARCH_SIFIVE (Conor Dooley) Synopsys DesignWare PCIe controller driver: - Align iATU mapping for endpoint MSI-X (Niklas Cassel) - Drop "host_" prefix from struct dw_pcie_host_ops members (Yoshihiro Shimoda) - Drop "ep_" prefix from struct dw_pcie_ep_ops members (Yoshihiro Shimoda) - Rename struct dw_pcie_ep_ops.func_conf_select() to .get_dbi_offset() to be more descriptive (Yoshihiro Shimoda) - Add Endpoint DBI accessors to encapsulate offset lookups (Yoshihiro Shimoda) TI J721E PCIe driver: - Add j721e DT and driver support for 'num-lanes' for devices that support x1, x2, or x4 Links (Matt Ranostay) - Add j721e DT compatible strings and driver support for j784s4 (Matt Ranostay) - Make TI J721E Kconfig depend on ARCH_K3 since the hardware is specific to those TI SoC parts (Peter Robinson) TI Keystone PCIe controller driver: - Hold power management references to all PHYs while enabling them to avoid a race when one provides clocks to others (Siddharth Vadapalli) Xilinx XDMA PCIe controller driver: - Remove redundant dev_err(), since platform_get_irq() and platform_get_irq_byname() already log errors (Yang Li) - Fix uninitialized symbols in xilinx_pl_dma_pcie_setup_irq() (Krzysztof Wilczyński) - Fix xilinx_pl_dma_pcie_init_irq_domain() error return when irq_domain_add_linear() fails (Harshit Mogalapalli) MicroSemi Switchtec management driver: - Do dma_mrpc cleanup during switchtec_pci_remove() to match its devm ioremapping in switchtec_pci_probe(). Previously the cleanup was done in stdev_release(), which used stale pointers if stdev->cdev happened to be open when the PCI device was removed (Daniel Stodden) Miscellaneous: - Convert interrupt terminology from "legacy" to "INTx" to be more specific and match spec terminology (Damien Le Moal) - In dw-xdata-pcie, pci_endpoint_test, and vmd, replace usage of deprecated ida_simple_*() API with ida_alloc() and ida_free() (Christophe JAILLET)" * tag 'pci-v6.8-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci: (97 commits) PCI: Fix kernel-doc issues PCI: brcmstb: Configure HW CLKREQ# mode appropriate for downstream device dt-bindings: PCI: brcmstb: Add property "brcm,clkreq-mode" PCI: mediatek-gen3: Fix translation window size calculation PCI: mediatek: Clear interrupt status before dispatching handler PCI: keystone: Fix race condition when initializing PHYs PCI: xilinx-xdma: Fix error code in xilinx_pl_dma_pcie_init_irq_domain() PCI: xilinx-xdma: Fix uninitialized symbols in xilinx_pl_dma_pcie_setup_irq() PCI: rcar-gen4: Fix -Wvoid-pointer-to-enum-cast error PCI: iproc: Fix -Wvoid-pointer-to-enum-cast warning PCI: dwc: Add dw_pcie_ep_{read,write}_dbi[2] helpers PCI: dwc: Rename .func_conf_select to .get_dbi_offset in struct dw_pcie_ep_ops PCI: dwc: Rename .ep_init to .init in struct dw_pcie_ep_ops PCI: dwc: Drop host prefix from struct dw_pcie_host_ops members misc: pci_endpoint_test: Use a unique test pattern for each BAR PCI: j721e: Make TI J721E depend on ARCH_K3 PCI: j721e: Add TI J784S4 PCIe configuration PCI/AER: Use explicit register sizes for struct members PCI/AER: Decode Requester ID when no error info found PCI/AER: Use 'Correctable' and 'Uncorrectable' spec terms for errors ...
2024-01-17Merge tag 'i3c/for-6.8' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux Pull i3c updates from Alexandre Belloni: "We are continuing to see more fixes as hardware is available and code is actually getting tested. Core: - Add a sysfs control for hotjoin - Add fallback method for GETMXDS CCC Drivers: - cdns: fix prescale for i2c clock - mipi-i3c-hci: more fixes now that the driver is used - svc: hotjoin enabling/disabling support" * tag 'i3c/for-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux: i3c: document hotjoin sysfs entry i3c: master: fix kernel-doc check warning i3c: master: cdns: Update maximum prescaler value for i2c clock i3c: master: fix Excess kernel-doc description warning i3c: master: svc: return actual transfer data len i3c: master: svc: rename read_len as actual_len i3c: add actual_len in i3c_priv_xfer i3c: master: svc: add hot join support i3c: master: add enable(disable) hot join in sys entry i3c: master: Fix build error i3c: Add fallback method for GETMXDS CCC i3c: mipi-i3c-hci: Add DMA bounce buffer for private transfers i3c: mipi-i3c-hci: Handle I3C address header error in hci_cmd_v1_daa() i3c: mipi-i3c-hci: Do not overallocate transfers in hci_cmd_v1_daa() i3c: mipi-i3c-hci: Report NACK response from CCC command to core
2024-01-18rtc: nuvoton: Compatible with NCT3015Y-R and NCT3018Y-RMia Lin
The NCT3015Y-R and NCT3018Y-R use the same datasheet but have different topologies as follows. - Topology (Only 1st i2c can set TWO bit and HF bit) In NCT3015Y-R, rtc 1st i2c is connected to a host CPU rtc 2nd i2c is connected to a BMC In NCT3018Y-R, rtc 1st i2c is connected to a BMC rtc 2nd i2c is connected to a host CPU In order to be compatible with NCT3015Y-R and NCT3018Y-R, - In probe, If part number is NCT3018Y-R, only set HF bit to 24-Hour format. Else, do nothing - In set_time, If part number is NCT3018Y-R && TWO bit is 0, change TWO bit to 1, and restore TWO bit after updating time. Signed-off-by: Mia Lin <mimi05633@gmail.com> Link: https://lore.kernel.org/r/20231113103807.1036978-2-mimi05633@gmail.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2024-01-18rtc: da9063: Use dev_err_probe()Biju Das
Replace dev_err()->dev_err_probe() to simpilfy probe(). Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20240105145344.204453-4-biju.das.jz@bp.renesas.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2024-01-18rtc: da9063: Use device_get_match_data()Biju Das
Replace of_match_node()->device_get_match_data() for the data associated with device match. Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20240105145344.204453-3-biju.das.jz@bp.renesas.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2024-01-18rtc: da9063: Make IRQ as optionalBiju Das
On some platforms (eg: RZ/{G2UL,Five} SMARC EVK), there is no IRQ populated by default. Add irq optional support. Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20240105145344.204453-2-biju.das.jz@bp.renesas.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2024-01-18rtc: max31335: Fix comparison in max31335_volatile_reg()Nathan Chancellor
Clang warns (or errors with CONFIG_WERROR=y): drivers/rtc/rtc-max31335.c:211:36: error: use of logical '||' with constant operand [-Werror,-Wconstant-logical-operand] 211 | if (reg == MAX31335_TEMP_DATA_MSB || MAX31335_TEMP_DATA_LSB) | ^ ~~~~~~~~~~~~~~~~~~~~~~ drivers/rtc/rtc-max31335.c:211:36: note: use '|' for a bitwise operation 211 | if (reg == MAX31335_TEMP_DATA_MSB || MAX31335_TEMP_DATA_LSB) | ^~ | | 1 error generated. This clearly should be a comparison against reg. Fix the comparison so that max31335_volatile_reg() does not always return true. Closes: https://github.com/ClangBuiltLinux/linux/issues/1980 Fixes: dedaf03b99d6 ("rtc: max31335: add driver support") Signed-off-by: Nathan Chancellor <nathan@kernel.org> Link: https://lore.kernel.org/r/20240117-rtc-max3133-fix-comparison-v1-1-91e98b29d564@kernel.org Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2024-01-18rtc: max31335: use regmap_update_bits_checkAlexandre Belloni
Simplify the IRQ handler by using regmap_update_bits_check. Reviewed-by: Antoniu Miclaus <antoniu.miclaus@analog.com> Link: https://lore.kernel.org/r/20240115232215.273374-2-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2024-01-18rtc: max31335: remove unecessary lockingAlexandre Belloni
There is no race condition when accessing MAX31335_STATUS1 because it is always about clearing the alarm interrupt bit. Reviewed-by: Antoniu Miclaus <antoniu.miclaus@analog.com> Link: https://lore.kernel.org/r/20240115232215.273374-1-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2024-01-17Merge tag 'pinctrl-v6.8-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl Pull pin control updates from Linus Walleij: "For this kernel cycle I managed an immutable branch for the PEF2256 WAN framer that has some pin control portions. It already landed in your tree through the net pull request but here it is mentioned again. The most interesting is perhaps the Samsung Exynos subdrivers for the Tensor SoC used in Google Pixel 6 and the ExynosAuto subdriver for automotive. Along with the earlier merged Tesla FSD subdriver it shows some of the versatile uses of the Samsung Exynos silicon. It is also used in the latest version of Axis Communications ARTPEC chips so it is a very widely deployed SoC family. We also have the Intel Meteor Lake SoC which I think is for laptops. It's a pretty interesting chip with Xe graphics and integrated PCH. Core changes: - A new PINCTRL_GROUP_DESC() infrastructure macro is added and used in different drivers, generic group description struct group_desc is now used all over the place. New drivers: - New driver for the Texas Instruments TPS6494 Power Management IC. - New driver for the Lantic PEF2256 framer pin multiplexer. This IC has some pins that can be reconfigured in different ways. The actual driver comes on an immutable branch with the net WAN parts, the IC is some latest-and-greatest serial line funnel for e.g. wireless access points. - New subdriver for the Samsung Exynos Auto V920 pin controller, used for automotive applications. - New subdriver for the Samsung "GS101" SoC pin controller, this is the Google "Tensor" SoC used in the Google Pixel 6. - New subdriver for the Intel Meteor Point SoC pin controller. - New subdriver for the Qualcomm SM8650 top level (TLMM) and LPASS pin controllers. - New subdriver for the Qualcomm X1E80100 top level (TLMM) pin controller. - New subdriver for the Qualcomm SM4450 top level (TLMM) pin controller. - The "single" pin controller now supports the Texas Instruments J7200 SoC. Improvements: - Intel has created a new (Intel-)generic pin controller driver that is now used by all contemporary Intel platforms. - Intel is now also making use of some cleanup helpers. - Enble 910 Ohm bias in the Intel Tangier driver. - The Samsung driver now suppors irq_set_affinity() in it's IRQ chip giving support for non wake up external gpio interrupts" * tag 'pinctrl-v6.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (112 commits) pinctrl: samsung: constify iomem pointers pinctrl: cy8c95x0: Cache muxed registers dt-bindings: pinctrl: xilinx: Rename *gpio to *gpio-grp pinctrl: qcom: lpass-lpi: remove duplicated include dt-bindings: pinctrl: qcom: drop common properties and allow wakeup-parent dt-bindings: pinctrl: qcom: drop common properties dt-bindings: pinctrl: qcom,ipq5018-tlmm: use common TLMM bindings dt-bindings: pinctrl: qcom,x1e80100-tlmm: restrict number of interrupts dt-bindings: pinctrl: qcom,sm8650-tlmm: restrict number of interrupts dt-bindings: pinctrl: qcom,sm8550-tlmm: restrict number of interrupts dt-bindings: pinctrl: qcom,sdx75-tlmm: restrict number of interrupts dt-bindings: pinctrl: qcom,sa8775p-tlmm: restrict number of interrupts dt-bindings: pinctrl: qcom,qdu1000-tlmm: restrict number of interrupts dt-bindings: pinctrl: qcom: create common LPASS LPI schema pinctrl: qcom: sm4450: dd SM4450 pinctrl driver dt-bindings: pinctrl: qcom: Add SM4450 pinctrl dt-bindings: pinctrl: qcom,pmic-mpp: clean up example pinctrl: intel: Add Intel Meteor Point pin controller and GPIO support pinctrl: renesas: rzg2l: Add input enable to the Ethernet pins pinctrl: renesas: rzg2l: Add output enable support ...
2024-01-17Merge tag 'hsi-for-6.8' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsi Pull HSI update from Sebastian Reichel: - modernize IDA API * tag 'hsi-for-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsi: HSI: omap_ssi: Remove usage of the deprecated ida_simple_xx() API
2024-01-17Merge tag 'mailbox-v6.8' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jassibrar/mailbox Pull mailbox updates from Jassi Brar: - add CMDQ support for mediatek mt8188 - mhuv2: fix channel window status - qcom: document X1E80100 IPC controller and misc cleanup - add Versal bindings to xlnx - Convert to platform remove callback returning void * tag 'mailbox-v6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/jassibrar/mailbox: (23 commits) mailbox: mtk-cmdq: Add CMDQ driver support for mt8188 mailbox: mtk-cmdq: Sort cmdq platform data by compatible name mailbox: mtk-cmdq: Rename gce_plat variable with SoC name postfix dt-bindings: mailbox: qcom-ipcc: document the X1E80100 Inter-Processor Communication Controller mailbox: zynqmp-ipi: Convert to platform remove callback returning void mailbox: tegra-hsp: Convert to platform remove callback returning void mailbox: sun6i-msgbox: Convert to platform remove callback returning void mailbox: stm32-ipcc: Convert to platform remove callback returning void mailbox: qcom-ipcc: Convert to platform remove callback returning void mailbox: qcom-apcs-ipc: Convert to platform remove callback returning void mailbox: omap: Convert to platform remove callback returning void mailbox: mtk-cmdq: Convert to platform remove callback returning void mailbox: mailbox-test: Convert to platform remove callback returning void mailbox: imx: Convert to platform remove callback returning void mailbox: bcm-pdc: Convert to platform remove callback returning void mailbox: bcm-flexrm: Convert to platform remove callback returning void mailbox: zynqmp-ipi: fix an Excess struct member kernel-doc warning dt-bindings: mailbox: add Versal IPI bindings dt-bindings: mailbox: zynqmp: extend required list mailbox: arm_mhuv2: Fix a bug for mhuv2_sender_interrupt ...
2024-01-17Merge tag 'leds-next-6.8' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds Pull LED updates from Lee Jones: "New Drivers: - Add support for Allwinner A100 RGB LED controller - Add support for Maxim 5970 Dual Hot-swap controller New Device Support: - Add support for AW20108 to Awinic LED driver New Functionality: - Extend support for Net speeds to include; 2.5G, 5G and 10G - Allow tx/rx and cts/dsr/dcd/rng TTY LEDS to be turned on and off via sysfs if required - Add support for hardware control in AW200xx Fix-ups: - Use safer methods for string handling - Improve error handling; return proper error values, simplify, avoid duplicates, etc - Replace Mutex use with the Completion mechanism - Fix include lists; alphabetise, remove unused, explicitly add used - Use generic platform device properties - Use/convert to new/better APIs/helpers/MACROs instead of hand-rolling implementations - Device Tree binding adaptions/conversions/creation - Continue work to remove superfluous platform .remove() call-backs - Remove superfluous/defunct code - Trivial; whitespace, unused variables, spelling, clean-ups, etc - Avoid unnecessary duplicate locks Bug Fixes: - Repair Kconfig based dependency lists - Ensure unused dynamically allocated data is freed after use - Fix support for brightness control - Add missing sufficient delays during reset to ensure correct operation - Avoid division-by-zero issues" * tag 'leds-next-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds: (45 commits) leds: trigger: netdev: Add core support for hw not supporting fallback to LED sw control leds: trigger: panic: Don't register panic notifier if creating the trigger failed leds: sun50i-a100: Convert to be agnostic to property provider leds: max5970: Add missing headers leds: max5970: Make use of dev_err_probe() leds: max5970: Make use of device properties leds: max5970: Remove unused variable leds: rgb: Drop obsolete dependency on COMPILE_TEST leds: sun50i-a100: Avoid division-by-zero warning leds: trigger: Remove unused function led_trigger_rename_static() leds: qcom-lpg: Introduce a wrapper for getting driver data from a pwm chip leds: gpio: Add kernel log if devm_fwnode_gpiod_get() fails dt-bindings: leds: qcom,spmi-flash-led: Fix example node name dt-bindings: leds: aw200xx: Fix led pattern and add reg constraints dt-bindings: leds: awinic,aw200xx: Add AW20108 device leds: aw200xx: Add support for aw20108 device leds: aw200xx: Improve autodim calculation method leds: aw200xx: Enable disable_locking flag in regmap config leds: aw200xx: Add delay after software reset dt-bindings: leds: aw200xx: Remove property "awinic,display-rows" ...
2024-01-17Merge tag 'mfd-next-6.8' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd Pull mfd updates from Lee Jones: "New Device Support: - Add support for Qualcomm PM8937 PMIC to QCOM SPMI PMIC Fix-ups: - Use/convert to new/better APIs/helpers/MACROs instead of hand-rolling implementations - Device Tree binding adaptions/conversions/creation - Improve error handling; return proper error values, simplify, avoid duplicates, etc - Continue work to remove superfluous platform .remove() call-backs - Move some exported symbols into private namespaces - Clean-up and staticify PM related operations - Trivial; spelling, whitespace, clean-ups, etc - Fix include lists; alphabetise, remove unused, explicitly add used Bug Fixes: - Use PLATFORM_DEVID_AUTO to ensure multiple duplicate devices can co-exist - Ensure debugfs register view is correctly presented - Fix ordering and value issues in current use of clk_register_fractional_divider() - Repair Kconfig based dependency lists" * tag 'mfd-next-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (50 commits) mfd: ti_am335x_tscadc: Fix TI SoC dependencies dt-bindings: mfd: sprd: Add support for UMS9620 mfd: ab8500-sysctrl: Drop ancient charger mfd: intel-lpss: Fix the fractional clock divider flags mfd: tps6594: Add null pointer check to tps6594_device_init() dt-bindings: mfd: pm8008: Clean up example node names dt-bindings: mfd: hisilicon,hi6421-spmi-pmic: Clean up example dt-bindings: mfd: hisilicon,hi6421-spmi-pmic: Fix regulator binding dt-bindings: mfd: hisilicon,hi6421-spmi-pmic: Fix up binding reference mfd: da9062: Simplify obtaining I2C match data mfd: syscon: Fix null pointer dereference in of_syscon_register() mfd: intel-lpss: Don't fail probe on success of pci_alloc_irq_vectors() mfd: twl6030-irq: Revert to use of_match_device() mfd: cs42l43: Correct order of include files to be alphabetical mfd: cs42l43: Correct SoundWire port list mfd: Fix a few spelling mistakes in PMIC header file comments mfd: intel-lpss: Provide Intel LPSS PM ops structure mfd: intel-lpss: Move exported symbols to INTEL_LPSS namespace mfd: intel-lpss: Adjust header inclusions mfd: intel-lpss: Use device_get_match_data() ...
2024-01-17Merge tag 'hwlock-v6.8' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux Pull hwspinlock updates from Bjorn Andersson: - Correct kernel-doc through the hwspinlock core, to address build warnings (and improve the documentation) - Drop unused compatible in the Qualcomm TCSR mutex driver * tag 'hwlock-v6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux: hwspinlock/core: fix kernel-doc warnings hwspinlock: qcom: Remove IPQ6018 SOC specific compatible
2024-01-17Merge tag 'rproc-v6.8' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux Pull remoteproc updates from Bjorn Andersson: - The i.MX DSP remoteproc driver adds support for providing a resource table, in order to enable IPC with the core - The TI K3 DSP driver is transitioned to remove_new, error messages are changed to use symbolic error codes, and dev_err_probe() is used where applicable - Support for the Qualcomm SC7280 audio, compute and WiFi co-processors are added to the Qualcomm TrustZone based remoteproc driver * tag 'rproc-v6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux: remoteproc: qcom_q6v5_pas: Add SC7280 ADSP, CDSP & WPSS dt-bindings: remoteproc: qcom: sc7180-pas: Add SC7280 compatibles dt-bindings: remoteproc: qcom: sc7180-pas: Fix SC7280 MPSS PD-names remoteproc: k3-dsp: Convert to platform remove callback returning void remoteproc: k3-dsp: Use symbolic error codes in error messages remoteproc: k3-dsp: Suppress duplicate error message in .remove() arm64: dts: imx8mp: Add reserve-memory nodes for DSP remoteproc: imx_dsp_rproc: Add mandatory find_loaded_rsc_table op
2024-01-17Merge tag 'rpmsg-v6.8' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux Pull rpmsg updates from Bjorn Andersson: "This make virtio free driver_override upon removal. It also updates the rpmsg documentation after earlier API updates" * tag 'rpmsg-v6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux: rpmsg: virtio: Free driver_override when rpmsg_remove() doc: rmpsg: Update with rpmsg_endpoint
2024-01-17Merge tag 'drm-next-2024-01-15-1' of git://anongit.freedesktop.org/drm/drmLinus Torvalds
Pull drm fixes from Dave Airlie: "This is just a wrap up of fixes from the last few days. It has the proper fix to the i915/xe collision, we can clean up what you did later once rc1 lands. Otherwise it's a few other i915, a v3d, rockchip and a nouveau fix to make GSP load on some original Turing GPUs. i915: - Fixes for kernel-doc warnings enforced in linux-next - Another build warning fix for string formatting of intel_wakeref_t - Display fixes for DP DSC BPC and C20 PLL state verification v3d: - register readout fix rockchip: - two build warning fixes nouveau: - fix GSP loading on Turing with different nvdec configuration" * tag 'drm-next-2024-01-15-1' of git://anongit.freedesktop.org/drm/drm: nouveau/gsp: handle engines in runl without nonstall interrupts. drm/i915/perf: reconcile Excess struct member kernel-doc warnings drm/i915/guc: reconcile Excess struct member kernel-doc warnings drm/i915/gt: reconcile Excess struct member kernel-doc warnings drm/i915/gem: reconcile Excess struct member kernel-doc warnings drm/i915/dp: Fix the max DSC bpc supported by source drm/i915: don't make assumptions about intel_wakeref_t type drm/i915/dp: Fix the PSR debugfs entries wrt. MST connectors drm/i915/display: Fix C20 pll selection for state verification drm/v3d: Fix support for register debugging on the RPi 4 drm/rockchip: vop2: Drop unused if_dclk_rate variable drm/rockchip: vop2: Drop superfluous include
2024-01-17Merge tag 'thermal-6.8-rc1-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull more thermal control updates from Rafael Wysocki: "These add support for debugfs-based diagnostics to the thermal core, simplify the thermal netlink API, fix system-wide PM support in the Intel HFI driver and clean up some code. Specifics: - Add debugfs-based diagnostics support to the thermal core (Daniel Lezcano, Dan Carpenter) - Fix a power allocator thermal governor issue preventing it from resetting cooling devices sometimes (Di Shen) - Simplify the thermal netlink API and clean up related code (Rafael J. Wysocki) - Make the Intel HFI driver support hibernation and deep suspend properly (Ricardo Neri)" * tag 'thermal-6.8-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: thermal/debugfs: Unlock on error path in thermal_debug_tz_trip_up() thermal: intel: hfi: Add syscore callbacks for system-wide PM thermal: gov_power_allocator: avoid inability to reset a cdev thermal: helpers: Rearrange thermal_cdev_set_cur_state() thermal: netlink: Rework notify API for cooling devices thermal: core: Use kstrdup_const() during cooling device registration thermal/debugfs: Add thermal debugfs information for mitigation episodes thermal/debugfs: Add thermal cooling device debugfs information thermal: netlink: Pass thermal zone pointer to notify routines thermal: netlink: Drop thermal_notify_tz_trip_add/delete() thermal: netlink: Pass pointers to thermal_notify_tz_trip_up/down() thermal: netlink: Pass pointers to thermal_notify_tz_trip_change()
2024-01-17Merge tag 'acpi-6.8-rc1-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull more ACPI updates from Rafael Wysocki: "These add support for new MADT flags to ACPICA, constify the PNP bus type structure and add new ACPI IRQ management quirks. Specifics: - Make pnp_bus_type const (Greg Kroah-Hartman) - Add ACPI IRQ management quirks for ASUS ExpertBook B1502CGA and ASUS Vivobook E1504GA and E1504GAB (Ben Mayo, Michael Maltsev) - Add new MADT GICC/GICR/ITS non-coherent flags and GICC online capable bit handling to ACPICA (Lorenzo Pieralisi)" * tag 'acpi-6.8-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPICA: MADT: Add new MADT GICC/GICR/ITS non-coherent flags handling ACPICA: MADT: Add GICC online capable bit handling ACPI: resource: Skip IRQ override on ASUS ExpertBook B1502CGA ACPI: resource: Add DMI quirks for ASUS Vivobook E1504GA and E1504GAB PNP: make pnp_bus_type const
2024-01-17Merge tag 'pm-6.8-rc1-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull more power management updates from Rafael Wysocki: "These restore the asynchronous device resume optimization removed by the previous PM merge, make the intel_pstate driver work better on Meteor Lake systems, optimize the PM QoS core code slightly and fix up typos in admin-guide. Specifics: - Restore the system-wide asynchronous device resume optimization removed by a recent concurrency fix (Rafael J. Wysocki) - Make the intel_pstate cpufreq driver allow Meteor Lake systems to run at somewhat higher frequencies (Srinivas Pandruvada) - Make the PM QoS core code use kcalloc() for array allocation (Erick Archer) - Fix two PM-related typos in admin-guide (Erwan Velu)" * tag 'pm-6.8-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: PM: sleep: Restore asynchronous device resume optimization Documentation: admin-guide: PM: Fix two typos cpufreq: intel_pstate: Update hybrid scaling factor for Meteor Lake PM: QoS: Use kcalloc() instead of kzalloc()
2024-01-17Merge tag 'for-linus-6.8-rc1-tag' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull xen updates from Juergen Gross: - update some Xen PV interface related headers - fix some kernel-doc comments in the xenbus driver - fix the Xen gntdev driver to not access the struct page of pages imported from a DMA-buf * tag 'for-linus-6.8-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen/gntdev: Fix the abuse of underlying struct page in DMA-buf import xen/xenbus: client: fix kernel-doc comments xen: update PV-device interface headers
2024-01-17blk-mq: Remove the hctx 'run' debugfs attributeBart Van Assche
Nobody uses the debugfs hctx 'run' attribute. Hence remove this attribute and also the code that updates the corresponding member variable. Suggested-by: Jens Axboe <axboe@kernel.dk> Cc: Gabriel Ryan <gabe@cs.columbia.edu> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Link: https://lore.kernel.org/r/20240117203609.4122520-1-bvanassche@acm.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-01-17Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull kvm updates from Paolo Bonzini: "Generic: - Use memdup_array_user() to harden against overflow. - Unconditionally advertise KVM_CAP_DEVICE_CTRL for all architectures. - Clean up Kconfigs that all KVM architectures were selecting - New functionality around "guest_memfd", a new userspace API that creates an anonymous file and returns a file descriptor that refers to it. guest_memfd files are bound to their owning virtual machine, cannot be mapped, read, or written by userspace, and cannot be resized. guest_memfd files do however support PUNCH_HOLE, which can be used to switch a memory area between guest_memfd and regular anonymous memory. - New ioctl KVM_SET_MEMORY_ATTRIBUTES allowing userspace to specify per-page attributes for a given page of guest memory; right now the only attribute is whether the guest expects to access memory via guest_memfd or not, which in Confidential SVMs backed by SEV-SNP, TDX or ARM64 pKVM is checked by firmware or hypervisor that guarantees confidentiality (AMD PSP, Intel TDX module, or EL2 in the case of pKVM). x86: - Support for "software-protected VMs" that can use the new guest_memfd and page attributes infrastructure. This is mostly useful for testing, since there is no pKVM-like infrastructure to provide a meaningfully reduced TCB. - Fix a relatively benign off-by-one error when splitting huge pages during CLEAR_DIRTY_LOG. - Fix a bug where KVM could incorrectly test-and-clear dirty bits in non-leaf TDP MMU SPTEs if a racing thread replaces a huge SPTE with a non-huge SPTE. - Use more generic lockdep assertions in paths that don't actually care about whether the caller is a reader or a writer. - let Xen guests opt out of having PV clock reported as "based on a stable TSC", because some of them don't expect the "TSC stable" bit (added to the pvclock ABI by KVM, but never set by Xen) to be set. - Revert a bogus, made-up nested SVM consistency check for TLB_CONTROL. - Advertise flush-by-ASID support for nSVM unconditionally, as KVM always flushes on nested transitions, i.e. always satisfies flush requests. This allows running bleeding edge versions of VMware Workstation on top of KVM. - Sanity check that the CPU supports flush-by-ASID when enabling SEV support. - On AMD machines with vNMI, always rely on hardware instead of intercepting IRET in some cases to detect unmasking of NMIs - Support for virtualizing Linear Address Masking (LAM) - Fix a variety of vPMU bugs where KVM fail to stop/reset counters and other state prior to refreshing the vPMU model. - Fix a double-overflow PMU bug by tracking emulated counter events using a dedicated field instead of snapshotting the "previous" counter. If the hardware PMC count triggers overflow that is recognized in the same VM-Exit that KVM manually bumps an event count, KVM would pend PMIs for both the hardware-triggered overflow and for KVM-triggered overflow. - Turn off KVM_WERROR by default for all configs so that it's not inadvertantly enabled by non-KVM developers, which can be problematic for subsystems that require no regressions for W=1 builds. - Advertise all of the host-supported CPUID bits that enumerate IA32_SPEC_CTRL "features". - Don't force a masterclock update when a vCPU synchronizes to the current TSC generation, as updating the masterclock can cause kvmclock's time to "jump" unexpectedly, e.g. when userspace hotplugs a pre-created vCPU. - Use RIP-relative address to read kvm_rebooting in the VM-Enter fault paths, partly as a super minor optimization, but mostly to make KVM play nice with position independent executable builds. - Guard KVM-on-HyperV's range-based TLB flush hooks with an #ifdef on CONFIG_HYPERV as a minor optimization, and to self-document the code. - Add CONFIG_KVM_HYPERV to allow disabling KVM support for HyperV "emulation" at build time. ARM64: - LPA2 support, adding 52bit IPA/PA capability for 4kB and 16kB base granule sizes. Branch shared with the arm64 tree. - Large Fine-Grained Trap rework, bringing some sanity to the feature, although there is more to come. This comes with a prefix branch shared with the arm64 tree. - Some additional Nested Virtualization groundwork, mostly introducing the NV2 VNCR support and retargetting the NV support to that version of the architecture. - A small set of vgic fixes and associated cleanups. Loongarch: - Optimization for memslot hugepage checking - Cleanup and fix some HW/SW timer issues - Add LSX/LASX (128bit/256bit SIMD) support RISC-V: - KVM_GET_REG_LIST improvement for vector registers - Generate ISA extension reg_list using macros in get-reg-list selftest - Support for reporting steal time along with selftest s390: - Bugfixes Selftests: - Fix an annoying goof where the NX hugepage test prints out garbage instead of the magic token needed to run the test. - Fix build errors when a header is delete/moved due to a missing flag in the Makefile. - Detect if KVM bugged/killed a selftest's VM and print out a helpful message instead of complaining that a random ioctl() failed. - Annotate the guest printf/assert helpers with __printf(), and fix the various bugs that were lurking due to lack of said annotation" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (185 commits) x86/kvm: Do not try to disable kvmclock if it was not enabled KVM: x86: add missing "depends on KVM" KVM: fix direction of dependency on MMU notifiers KVM: introduce CONFIG_KVM_COMMON KVM: arm64: Add missing memory barriers when switching to pKVM's hyp pgd KVM: arm64: vgic-its: Avoid potential UAF in LPI translation cache RISC-V: KVM: selftests: Add get-reg-list test for STA registers RISC-V: KVM: selftests: Add steal_time test support RISC-V: KVM: selftests: Add guest_sbi_probe_extension RISC-V: KVM: selftests: Move sbi_ecall to processor.c RISC-V: KVM: Implement SBI STA extension RISC-V: KVM: Add support for SBI STA registers RISC-V: KVM: Add support for SBI extension registers RISC-V: KVM: Add SBI STA info to vcpu_arch RISC-V: KVM: Add steal-update vcpu request RISC-V: KVM: Add SBI STA extension skeleton RISC-V: paravirt: Implement steal-time support RISC-V: Add SBI STA extension definitions RISC-V: paravirt: Add skeleton for pv-time support RISC-V: KVM: Fix indentation in kvm_riscv_vcpu_set_reg_csr() ...
2024-01-17Merge tag 'docs-6.8-2' of git://git.lwn.net/linuxLinus Torvalds
Pull documentation fixes from Jonathan Corbet: "A handful of late-arriving documentation fixes" * tag 'docs-6.8-2' of git://git.lwn.net/linux: docs, kprobes: Add loongarch as supported architecture docs, kprobes: Update email address of Masami Hiramatsu docs: admin-guide: hw_random: update rng-tools website Documentation/core-api: fix spelling mistake in workqueue docs: kernel_feat.py: fix potential command injection Documentation: constrain alabaster package to older versions
2024-01-17Merge tag 'parisc-for-6.8-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux Pull parisc updates from Helge Deller: "Two small fixes for the parisc architecture: - Fix PDC address calculation with narrow firmware (64-bit kernel on 32-bit firmware) - Fix kthread which checks power button get started on qemu too" * tag 'parisc-for-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc/power: Fix power soft-off button emulation on qemu parisc/firmware: Fix F-extend for PDC addresses
2024-01-17Merge tag 'xtensa-20240117' of https://github.com/jcmvbkbc/linux-xtensaLinus Torvalds
Pull Xtensa updates from Max Filippov: - small cleanups in the xtensa PCI and asmmacro code - fix kernel build with FDPIC toolchain * tag 'xtensa-20240117' of https://github.com/jcmvbkbc/linux-xtensa: xtensa: don't produce FDPIC output with fdpic toolchain xtensa: Use PCI_HEADER_TYPE_MFD instead of literal xtensa: replace <asm-generic/export.h> with <linux/export.h> xtensa: fix variants path in the Kconfig help
2024-01-17Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-armLinus Torvalds
Pull ARM updates from Russell King: - add missing neon instructions for the neon support hook - arrange for davinci to select PINCTRL - try VMA lock-base page fault handling first - use memblock_alloc_try_nid_raw() for kasan shadow page - dma: use kvzalloc() rather than kzalloc()/vzalloc() * tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: ARM: 9331/1: ARM/dma-mapping: replace kzalloc() and vzalloc() with kvzalloc() ARM: 9329/1: kasan: Use memblock_alloc_try_nid_raw for shadow page ARM: 9328/1: mm: try VMA lock-based page fault handling first ARM: 9330/1: davinci: also select PINCTRL ARM: 9327/1: vfp: Add missing VFP instructions to neon_support_hook
2024-01-17Merge tag 'microblaze-v6.8' of git://git.monstr.eu/linux-2.6-microblazeLinus Torvalds
Pull microblaze updates from Michal Simek: "Just defconfig updates: - enable NFS, Marvell phy - sync defconfig with the latest Kconfig layout" * tag 'microblaze-v6.8' of git://git.monstr.eu/linux-2.6-microblaze: microblaze: defconfig: Enable the Marvell phy driver microblaze: Enable options to mount a rootfs via NFS microblaze: Align defconfig with latest Kconfig layout
2024-01-17Merge tag 'mips_6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linuxLinus Torvalds
Pull MIPS updates from Thomas Bogendoerfer: "Just cleanups and fixes" * tag 'mips_6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: MIPS: Alchemy: Fix an out-of-bound access in db1550_dev_setup() MIPS: Alchemy: Fix an out-of-bound access in db1200_dev_setup() MIPS: Fix typos MIPS: Remove unused shadow GPR support from vector irq setup MIPS: Allow vectored interrupt handler to reside everywhere for 64bit mips: Set dump-stack arch description mips: mm: add slab availability checking in ioremap_prot mips: Optimize max_mapnr init procedure mips: Fix max_mapnr being uninitialized on early stages mips: Fix incorrect max_low_pfn adjustment mips: dmi: Fix early remap on MIPS32 MIPS: compressed: Use correct instruction for 64 bit code MIPS: SGI-IP27: hubio: fix nasid kernel-doc warning MAINTAINERS: Add myself as maintainer of the Ralink architecture
2024-01-17Merge tag 'riscv-for-linus-6.8-mw1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux Pull RISC-V updates from Palmer Dabbelt: - Support for many new extensions in hwprobe, along with a handful of cleanups - Various cleanups to our page table handling code, so we alwayse use {READ,WRITE}_ONCE - Support for the which-cpus flavor of hwprobe - Support for XIP kernels has been resurrected * tag 'riscv-for-linus-6.8-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (52 commits) riscv: hwprobe: export Zicond extension riscv: hwprobe: export Zacas ISA extension riscv: add ISA extension parsing for Zacas dt-bindings: riscv: add Zacas ISA extension description riscv: hwprobe: export Ztso ISA extension riscv: add ISA extension parsing for Ztso use linux/export.h rather than asm-generic/export.h riscv: Remove SHADOW_OVERFLOW_STACK_SIZE macro riscv; fix __user annotation in save_v_state() riscv: fix __user annotation in traps_misaligned.c riscv: Select ARCH_WANTS_NO_INSTR riscv: Remove obsolete rv32_defconfig file riscv: Allow disabling of BUILTIN_DTB for XIP riscv: Fixed wrong register in XIP_FIXUP_FLASH_OFFSET macro riscv: Make XIP bootable again riscv: Fix set_direct_map_default_noflush() to reset _PAGE_EXEC riscv: Fix module_alloc() that did not reset the linear mapping permissions riscv: Fix wrong usage of lm_alias() when splitting a huge linear mapping riscv: Check if the code to patch lies in the exit section riscv: Use the same CPU operations for all CPUs ...
2024-01-17Merge tag 'uml-for-linus-6.8-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/uml/linux Pull UML updates from Richard Weinberger: - Clang coverage support - Many cleanups from Benjamin Berg - Various minor fixes * tag 'uml-for-linus-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/uml/linux: um: Mark 32bit syscall helpers as clobbering memory um: Remove unused register save/restore functions um: Rely on PTRACE_SETREGSET to set FS/GS base registers Documentation: kunit: Add clang UML coverage example arch: um: Add Clang coverage support um: time-travel: fix time corruption um: net: Fix return type of uml_net_start_xmit() um: Always inline stub functions um: Do not use printk in userspace trampoline um: Reap winch thread if it fails um: Do not use printk in SIGWINCH helper thread um: Don't use vfprintf() for os_info() um: Make errors to stop ptraced child fatal during startup um: Drop NULL check from start_userspace um: Drop support for hosts without SYSEMU_SINGLESTEP support um: document arch_futex_atomic_op_inuser um: mmu: remove stub_pages um: Fix naming clash between UML and scheduler um: virt-pci: fix platform map offset
2024-01-17Merge tag 'ubifs-for-linus-6.8-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs Pull UBI and UBIFS updates from Richard Weinberger: "UBI: - Use in-tree fault injection framework and add new injection types - Fix for a memory leak in the block driver UBIFS: - kernel-doc fixes - Various minor fixes" * tag 'ubifs-for-linus-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs: ubi: block: fix memleak in ubiblock_create() ubifs: fix kernel-doc warnings mtd: Add several functions to the fail_function list ubi: Reserve sufficient buffer length for the input mask ubi: Add six fault injection type for testing ubi: Split io_failures into write_failure and erase_failure ubi: Use the fault injection framework to enhance the fault injection capability ubifs: ubifs_symlink: Fix memleak of inode->i_link in error path ubifs: Check @c->dirty_[n|p]n_cnt and @c->nroot state under @c->lp_mutex ubifs: describe function parameters ubifs: auth.c: fix kernel-doc function prototype warning ubifs: use crypto_shash_tfm_digest() in ubifs_hmac_wkm()
generated by cgit (git 2.34.1) at 2025-07-16 10:49:32 +0000