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git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next
Steffen Klassert says:
====================
1) Remove some unnecessary strscpy_pad() size arguments.
From Thorsten Blum.
2) Correct use of xso.real_dev on bonding offloads.
Patchset from Cosmin Ratiu.
3) Add hardware offload configuration to XFRM_MSG_MIGRATE.
From Chiachang Wang.
4) Refactor migration setup during cloning. This was
done after the clone was created. Now it is done
in the cloning function itself.
From Chiachang Wang.
5) Validate assignment of maximal possible SEQ number.
Prevent from setting to the maximum sequrnce number
as this would cause for traffic drop.
From Leon Romanovsky.
6) Prevent configuration of interface index when offload
is used. Hardware can't handle this case.i
From Leon Romanovsky.
7) Always use kfree_sensitive() for SA secret zeroization.
From Zilin Guan.
ipsec-next-2025-05-23
* tag 'ipsec-next-2025-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next:
xfrm: use kfree_sensitive() for SA secret zeroization
xfrm: prevent configuration of interface index when offload is used
xfrm: validate assignment of maximal possible SEQ number
xfrm: Refactor migration setup during the cloning process
xfrm: Migrate offload configuration
bonding: Fix multiple long standing offload races
bonding: Mark active offloaded xfrm_states
xfrm: Add explicit dev to .xdo_dev_state_{add,delete,free}
xfrm: Remove unneeded device check from validate_xmit_xfrm
xfrm: Use xdo.dev instead of xdo.real_dev
net/mlx5: Avoid using xso.real_dev unnecessarily
xfrm: Remove unnecessary strscpy_pad() size arguments
====================
Link: https://patch.msgid.link/20250523075611.3723340-1-steffen.klassert@secunet.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next
Marc Kleine-Budde says:
====================
pull-request: can-next 2025-05-22
this is a pull request of 22 patches for net-next/main.
The series by Biju Das contains 19 patches and adds RZ/G3E CANFD
support to the rcar_canfd driver.
The patch by Vincent Mailhol adds a struct data_bittiming_params to
group FD parameters as a preparation patch for CAN-XL support.
Felix Maurer's patch imports tst-filter from can-tests into the kernel
self tests and Vincent Mailhol adds support for physical CAN
interfaces.
linux-can-next-for-6.16-20250522
* tag 'linux-can-next-for-6.16-20250522' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next: (22 commits)
selftests: can: test_raw_filter.sh: add support of physical interfaces
selftests: can: Import tst-filter from can-tests
can: dev: add struct data_bittiming_params to group FD parameters
can: rcar_canfd: Add RZ/G3E support
can: rcar_canfd: Enhance multi_channel_irqs handling
can: rcar_canfd: Add external_clk variable to struct rcar_canfd_hw_info
can: rcar_canfd: Add sh variable to struct rcar_canfd_hw_info
can: rcar_canfd: Add struct rcanfd_regs variable to struct rcar_canfd_hw_info
can: rcar_canfd: Add shared_can_regs variable to struct rcar_canfd_hw_info
can: rcar_canfd: Add ch_interface_mode variable to struct rcar_canfd_hw_info
can: rcar_canfd: Add {nom,data}_bittiming variables to struct rcar_canfd_hw_info
can: rcar_canfd: Add max_cftml variable to struct rcar_canfd_hw_info
can: rcar_canfd: Add max_aflpn variable to struct rcar_canfd_hw_info
can: rcar_canfd: Add rnc_field_width variable to struct rcar_canfd_hw_info
can: rcar_canfd: Update RCANFD_GAFLCFG macro
can: rcar_canfd: Add rcar_canfd_setrnc()
can: rcar_canfd: Drop the mask operation in RCANFD_GAFLCFG_SETRNC macro
can: rcar_canfd: Update RCANFD_GERFL_ERR macro
can: rcar_canfd: Drop RCANFD_GAFLCFG_GETRNC macro
can: rcar_canfd: Use of_get_available_child_by_name()
...
====================
Link: https://patch.msgid.link/20250522084128.501049-1-mkl@pengutronix.de
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull misc vfs updates from Christian Brauner:
"This contains the usual selections of misc updates for this cycle.
Features:
- Use folios for symlinks in the page cache
FUSE already uses folios for its symlinks. Mirror that conversion
in the generic code and the NFS code. That lets us get rid of a few
folio->page->folio conversions in this path, and some of the few
remaining users of read_cache_page() / read_mapping_page()
- Try and make a few filesystem operations killable on the VFS
inode->i_mutex level
- Add sysctl vfs_cache_pressure_denom for bulk file operations
Some workloads need to preserve more dentries than we currently
allow through out sysctl interface
A HDFS servers with 12 HDDs per server, on a HDFS datanode startup
involves scanning all files and caching their metadata (including
dentries and inodes) in memory. Each HDD contains approximately 2
million files, resulting in a total of ~20 million cached dentries
after initialization
To minimize dentry reclamation, they set vfs_cache_pressure to 1.
Despite this configuration, memory pressure conditions can still
trigger reclamation of up to 50% of cached dentries, reducing the
cache from 20 million to approximately 10 million entries. During
the subsequent cache rebuild period, any HDFS datanode restart
operation incurs substantial latency penalties until full cache
recovery completes
To maintain service stability, more dentries need to be preserved
during memory reclamation. The current minimum reclaim ratio (1/100
of total dentries) remains too aggressive for such workload. This
patch introduces vfs_cache_pressure_denom for more granular cache
pressure control
The configuration [vfs_cache_pressure=1,
vfs_cache_pressure_denom=10000] effectively maintains the full 20
million dentry cache under memory pressure, preventing datanode
restart performance degradation
- Avoid some jumps in inode_permission() using likely()/unlikely()
- Avid a memory access which is most likely a cache miss when
descending into devcgroup_inode_permission()
- Add fastpath predicts for stat() and fdput()
- Anonymous inodes currently don't come with a proper mode causing
issues in the kernel when we want to add useful VFS debug assert.
Fix that by giving them a proper mode and masking it off when we
report it to userspace which relies on them not having any mode
- Anonymous inodes currently allow to change inode attributes because
the VFS falls back to simple_setattr() if i_op->setattr isn't
implemented. This means the ownership and mode for every single
user of anon_inode_inode can be changed. Block that as it's either
useless or actively harmful. If specific ownership is needed the
respective subsystem should allocate anonymous inodes from their
own private superblock
- Raise SB_I_NODEV and SB_I_NOEXEC on the anonymous inode superblock
- Add proper tests for anonymous inode behavior
- Make it easy to detect proper anonymous inodes and to ensure that
we can detect them in codepaths such as readahead()
Cleanups:
- Port pidfs to the new anon_inode_{g,s}etattr() helpers
- Try to remove the uselib() system call
- Add unlikely branch hint return path for poll
- Add unlikely branch hint on return path for core_sys_select
- Don't allow signals to interrupt getdents copying for fuse
- Provide a size hint to dir_context for during readdir()
- Use writeback_iter directly in mpage_writepages
- Update compression and mtime descriptions in initramfs
documentation
- Update main netfs API document
- Remove useless plus one in super_cache_scan()
- Remove unnecessary NULL-check guards during setns()
- Add separate separate {get,put}_cgroup_ns no-op cases
Fixes:
- Fix typo in root= kernel parameter description
- Use KERN_INFO for infof()|info_plog()|infofc()
- Correct comments of fs_validate_description()
- Mark an unlikely if condition with unlikely() in
vfs_parse_monolithic_sep()
- Delete macro fsparam_u32hex()
- Remove unused and problematic validate_constant_table()
- Fix potential unsigned integer underflow in fs_name()
- Make file-nr output the total allocated file handles"
* tag 'vfs-6.16-rc1.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (43 commits)
fs: Pass a folio to page_put_link()
nfs: Use a folio in nfs_get_link()
fs: Convert __page_get_link() to use a folio
fs/read_write: make default_llseek() killable
fs/open: make do_truncate() killable
fs/open: make chmod_common() and chown_common() killable
include/linux/fs.h: add inode_lock_killable()
readdir: supply dir_context.count as readdir buffer size hint
vfs: Add sysctl vfs_cache_pressure_denom for bulk file operations
fuse: don't allow signals to interrupt getdents copying
Documentation: fix typo in root= kernel parameter description
include/cgroup: separate {get,put}_cgroup_ns no-op case
kernel/nsproxy: remove unnecessary guards
fs: use writeback_iter directly in mpage_writepages
fs: remove useless plus one in super_cache_scan()
fs: add S_ANON_INODE
fs: remove uselib() system call
device_cgroup: avoid access to ->i_rdev in the common case in devcgroup_inode_permission()
fs/fs_parse: Remove unused and problematic validate_constant_table()
fs: touch up predicts in inode_permission()
...
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Introduce memory-region and memory-region-names properties for the
ethernet node available on EN7581 SoC in order to reserve system memory
for hw forwarding buffers queue used by the QDMA modules.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://patch.msgid.link/20250521-airopha-desc-sram-v3-1-a6e9b085b4f0@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull final writepage conversion from Christian Brauner:
"This converts vboxfs from ->writepage() to ->writepages().
This was the last user of the ->writepage() method. So remove
->writepage() completely and all references to it"
* tag 'vfs-6.16-rc1.writepage' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
fs: Remove aops->writepage
mm: Remove swap_writepage() and shmem_writepage()
ttm: Call shmem_writeout() from ttm_backup_backup_page()
i915: Use writeback_iter()
shmem: Add shmem_writeout()
writeback: Remove writeback_use_writepage()
migrate: Remove call to ->writepage
vboxsf: Convert to writepages
9p: Add a migrate_folio method
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git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs directory lookup updates from Christian Brauner:
"This contains cleanups for the lookup_one*() family of helpers.
We expose a set of functions with names containing "lookup_one_len"
and others without the "_len". This difference has nothing to do with
"len". It's rater a historical accident that can be confusing.
The functions without "_len" take a "mnt_idmap" pointer. This is found
in the "vfsmount" and that is an important question when choosing
which to use: do you have a vfsmount, or are you "inside" the
filesystem. A related question is "is permission checking relevant
here?".
nfsd and cachefiles *do* have a vfsmount but *don't* use the non-_len
functions. They pass nop_mnt_idmap and refuse to work on filesystems
which have any other idmap.
This work changes nfsd and cachefile to use the lookup_one family of
functions and to explictily pass &nop_mnt_idmap which is consistent
with all other vfs interfaces used where &nop_mnt_idmap is explicitly
passed.
The remaining uses of the "_one" functions do not require permission
checks so these are renamed to be "_noperm" and the permission
checking is removed.
This series also changes these lookup function to take a qstr instead
of separate name and len. In many cases this simplifies the call"
* tag 'vfs-6.16-rc1.async.dir' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
VFS: change lookup_one_common and lookup_noperm_common to take a qstr
Use try_lookup_noperm() instead of d_hash_and_lookup() outside of VFS
VFS: rename lookup_one_len family to lookup_noperm and remove permission check
cachefiles: Use lookup_one() rather than lookup_one_len()
nfsd: Use lookup_one() rather than lookup_one_len()
VFS: improve interface for lookup_one functions
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RTC tracks clock time during system suspend and it is used as a wakeup
source on S32G2/S32G3 architecture.
RTC from S32G2/S32G3 is not battery-powered and it is not kept alive
during system reset.
Co-developed-by: Bogdan-Gabriel Roman <bogdan-gabriel.roman@nxp.com>
Signed-off-by: Bogdan-Gabriel Roman <bogdan-gabriel.roman@nxp.com>
Co-developed-by: Ghennadi Procopciuc <ghennadi.procopciuc@nxp.com>
Signed-off-by: Ghennadi Procopciuc <ghennadi.procopciuc@nxp.com>
Signed-off-by: Ciprian Marian Costea <ciprianmarian.costea@oss.nxp.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20250403103346.3064895-2-ciprianmarian.costea@oss.nxp.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
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The manually updated table of contents and section numbering are hard
to maintain.
Make changes similar to the following commits:
5e8f0ba38a4d ("docs/kbuild/makefiles: throw out the local table of contents")
1a4c1c9df72e ("docs/kbuild/makefiles: drop section numbering, use references")
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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Document the "byte_size" and "type_string" kABI stability rules.
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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Change the gendwarfksyms documentation to use proper chapter,
section, and subsection adornments instead of fragile section
numbers.
Suggested-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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Helper macro to more easily limit the export of a symbol to a given
list of modules.
Eg:
EXPORT_SYMBOL_GPL_FOR_MODULES(preempt_notifier_inc, "kvm");
will limit the use of said function to kvm.ko, any other module trying
to use this symbol will refure to load (and get modpost build
failures).
Requested-by: Masahiro Yamada <masahiroy@kernel.org>
Requested-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Reviewed-by: Petr Pavlu <petr.pavlu@suse.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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This patch introduces the use of the Intel QAT to offload EROFS data
decompression, aiming to improve the decompression performance.
A 285MiB dataset is used with the following command to create EROFS
images with different cluster sizes:
$ mkfs.erofs -zdeflate,level=9 -C{4096,16384,65536,131072,262144}
Fio is used to test the following read patterns:
$ fio -filename=testfile -bs=4k -rw=read -name=job1
$ fio -filename=testfile -bs=4k -rw=randread -name=job1
$ fio -filename=testfile -bs=4k -rw=randread --io_size=14m -name=job1
Here are some performance numbers for reference:
Processors: Intel(R) Xeon(R) 6766E (144 cores)
Memory: 512 GiB
|-----------------------------------------------------------------------------|
| | Cluster size | sequential read | randread | small randread(5%) |
|-----------|--------------|-----------------|-----------|--------------------|
| Intel QAT | 4096 | 538 MiB/s | 112 MiB/s | 20.76 MiB/s |
| Intel QAT | 16384 | 699 MiB/s | 158 MiB/s | 21.02 MiB/s |
| Intel QAT | 65536 | 917 MiB/s | 278 MiB/s | 20.90 MiB/s |
| Intel QAT | 131072 | 1056 MiB/s | 351 MiB/s | 23.36 MiB/s |
| Intel QAT | 262144 | 1145 MiB/s | 431 MiB/s | 26.66 MiB/s |
| deflate | 4096 | 499 MiB/s | 108 MiB/s | 21.50 MiB/s |
| deflate | 16384 | 422 MiB/s | 125 MiB/s | 18.94 MiB/s |
| deflate | 65536 | 452 MiB/s | 159 MiB/s | 13.02 MiB/s |
| deflate | 131072 | 452 MiB/s | 177 MiB/s | 11.44 MiB/s |
| deflate | 262144 | 466 MiB/s | 194 MiB/s | 10.60 MiB/s |
Signed-off-by: Bo Liu <liubo03@inspur.com>
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Link: https://lore.kernel.org/r/20250522094931.28956-1-liubo03@inspur.com
[ Gao Xiang: refine the commit message. ]
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
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Add SAMA7D65 RTT compatible to DT bindings documentation.
Signed-off-by: Ryan Wanner <Ryan.Wanner@microchip.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/183474a65377f4030360166a5f2659af7323e82b.1744666011.git.Ryan.Wanner@microchip.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
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Add SAMA7D65 RTC compatible to DT bindings documentation.
Signed-off-by: Ryan Wanner <Ryan.Wanner@microchip.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/a274485331628be0bcf382b1ba489d4555fa49c8.1744666011.git.Ryan.Wanner@microchip.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
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On many Qualcomm platforms the PMIC RTC control and time registers are
read-only so that the RTC time can not be updated. Instead an offset
needs be stored in some machine-specific non-volatile memory, which a
driver can take into account.
On platforms where the offset is stored in a Qualcomm specific UEFI
variable the variables are also accessed in a non-standard way, which
means that the OS cannot assume that the variable service is available
by the time the RTC driver probes.
Add a 'qcom,uefi-rtc-info' boolean flag to indicate that the RTC offset
is stored in a Qualcomm specific UEFI variable so that the OS can
determine whether to wait for it to become available.
The UEFI variable is
882f8c2b-9646-435f-8de5-f208ff80c1bd-RTCInfo
and holds a 12-byte structure where the first four bytes is a GPS time
offset in little-endian byte order.
Link: https://lore.kernel.org/all/aAecIkgmTTlThKEZ@hovoldconsulting.com/
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20250423075143.11157-2-johan+linaro@kernel.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
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Add compatible string "nxp,imx94-i3c" and "nxp,imx95-i3c" for the i.MX94
chip and i.MX95 chip. Backward is compatible with "silvaco,i3c-master-v1".
Also i.MX94 and i.MX95 I3C only need two clocks and Legacy I3C needs
three clocks. So add restrictions for clock and clock-names properties
for different Socs.
Signed-off-by: Carlos Song <carlos.song@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250427083230.3325700-2-carlos.song@nxp.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
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Add rockchip,rk3562-wdt for rk3562.
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20250506025715.33595-2-kever.yang@rock-chips.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
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Add an entry for 'fsl,imx8qm-sc-wdt' as imx8qm also contains the SCU
watchdog block.
Signed-off-by: Thomas Richard <thomas.richard@bootlin.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Acked-by: Oliver Graute <oliver.graute@kococonnector.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20250414-imx8qm-watchdog-v2-1-449265a9da4e@bootlin.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
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Describe the Software Watchdog Timer available on the S32G platforms.
Cc: Ghennadi Procopciuc <ghennadi.procopciuc@nxp.com>
Cc: Thomas Fossati <thomas.fossati@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20250410082616.1855860-2-daniel.lezcano@linaro.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
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Add CXL RAS Features support. Features include "patrol scrub control",
"error check scrub", "perform maintenance", and "memory sparing". This
support connects the RAS Featurs to EDAC.
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Post Package Repair (PPR) maintenance operations may be supported by CXL
devices that implement CXL.mem protocol. A PPR maintenance operation
requests the CXL device to perform a repair operation on its media.
For example, a CXL device with DRAM components that support PPR features
may implement PPR Maintenance operations. DRAM components may support two
types of PPR, hard PPR (hPPR), for a permanent row repair, and Soft PPR
(sPPR), for a temporary row repair. Soft PPR is much faster than hPPR,
but the repair is lost with a power cycle.
During the execution of a PPR Maintenance operation, a CXL memory device:
- May or may not retain data
- May or may not be able to process CXL.mem requests correctly, including
the ones that target the DPA involved in the repair.
These CXL Memory Device capabilities are specified by Restriction Flags
in the sPPR Feature and hPPR Feature.
Soft PPR maintenance operation may be executed at runtime, if data is
retained and CXL.mem requests are correctly processed. For CXL devices with
DRAM components, hPPR maintenance operation may be executed only at boot
because typically data may not be retained with hPPR maintenance operation.
When a CXL device identifies error on a memory component, the device
may inform the host about the need for a PPR maintenance operation by using
an Event Record, where the Maintenance Needed flag is set. The Event Record
specifies the DPA that should be repaired. A CXL device may not keep track
of the requests that have already been sent and the information on which
DPA should be repaired may be lost upon power cycle.
The userspace tool requests for maintenance operation if the number of
corrected error reported on a CXL.mem media exceeds error threshold.
CXL spec 3.2 section 8.2.10.7.1.2 describes the device's sPPR (soft PPR)
maintenance operation and section 8.2.10.7.1.3 describes the device's
hPPR (hard PPR) maintenance operation feature.
CXL spec 3.2 section 8.2.10.7.2.1 describes the sPPR feature discovery and
configuration.
CXL spec 3.2 section 8.2.10.7.2.2 describes the hPPR feature discovery and
configuration.
Add support for controlling CXL memory device soft PPR (sPPR) feature.
Register with EDAC driver, which gets the memory repair attr descriptors
from the EDAC memory repair driver and exposes sysfs repair control
attributes for PRR to the userspace. For example CXL PPR control for the
CXL mem0 device is exposed in /sys/bus/edac/devices/cxl_mem0/mem_repairX/
Add checks to ensure the memory to be repaired is offline and originates
from a CXL DRAM or CXL gen_media error record reported in the current boot,
before requesting a PPR operation on the device.
Note: Tested with QEMU patch for CXL PPR feature.
https://lore.kernel.org/linux-cxl/20250509172229.726-1-shiju.jose@huawei.com/T/#m70b2b010f43f7f4a6f9acee5ec9008498bf292c3
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Shiju Jose <shiju.jose@huawei.com>
Reviewed-by: Alison Schofield <alison.schofield@intel.com>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Link: https://patch.msgid.link/20250521124749.817-9-shiju.jose@huawei.com
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
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Memory sparing is defined as a repair function that replaces a portion of
memory with a portion of functional memory at that same DPA. The subclasses
for this operation vary in terms of the scope of the sparing being
performed. The cacheline sparing subclass refers to a sparing action that
can replace a full cacheline. Row sparing is provided as an alternative to
PPR sparing functions and its scope is that of a single DDR row.
As per CXL r3.2 Table 8-125 foot note 1. Memory sparing is preferred over
PPR when possible.
Bank sparing allows an entire bank to be replaced. Rank sparing is defined
as an operation in which an entire DDR rank is replaced.
Memory sparing maintenance operations may be supported by CXL devices
that implement CXL.mem protocol. A sparing maintenance operation requests
the CXL device to perform a repair operation on its media.
For example, a CXL device with DRAM components that support memory sparing
features may implement sparing maintenance operations.
The host may issue a query command by setting query resources flag in the
input payload (CXL spec 3.2 Table 8-120) to determine availability of
sparing resources for a given address. In response to a query request,
the device shall report the resource availability by producing the memory
sparing event record (CXL spec 3.2 Table 8-60) in which the Channel, Rank,
Nibble Mask, Bank Group, Bank, Row, Column, Sub-Channel fields are a copy
of the values specified in the request.
During the execution of a sparing maintenance operation, a CXL memory
device:
- may not retain data
- may not be able to process CXL.mem requests correctly.
These CXL memory device capabilities are specified by restriction flags
in the memory sparing feature readable attributes.
When a CXL device identifies error on a memory component, the device
may inform the host about the need for a memory sparing maintenance
operation by using DRAM event record, where the 'maintenance needed' flag
may set. The event record contains some of the DPA, Channel, Rank,
Nibble Mask, Bank Group, Bank, Row, Column, Sub-Channel fields that
should be repaired. The userspace tool requests for maintenance operation
if the 'maintenance needed' flag set in the CXL DRAM error record.
CXL spec 3.2 section 8.2.10.7.1.4 describes the device's memory sparing
maintenance operation feature.
CXL spec 3.2 section 8.2.10.7.2.3 describes the memory sparing feature
discovery and configuration.
Add support for controlling CXL memory device memory sparing feature.
Register with EDAC driver, which gets the memory repair attr descriptors
from the EDAC memory repair driver and exposes sysfs repair control
attributes for memory sparing to the userspace. For example CXL memory
sparing control for the CXL mem0 device is exposed in
/sys/bus/edac/devices/cxl_mem0/mem_repairX/
Use case
========
1. CXL device identifies a failure in a memory component, report to
userspace in a CXL DRAM trace event with DPA and other attributes of
memory to repair such as channel, rank, nibble mask, bank Group,
bank, row, column, sub-channel.
2. Rasdaemon process the trace event and may issue query request in sysfs
check resources available for memory sparing if either of the following
conditions met.
- 'maintenance needed' flag set in the event record.
- 'threshold event' flag set for CVME threshold feature.
- When the number of corrected error reported on a CXL.mem media to the
userspace exceeds the threshold value for corrected error count defined
by the userspace policy.
3. Rasdaemon process the memory sparing trace event and issue repair
request for memory sparing.
Kernel CXL driver shall report memory sparing event record to the userspace
with the resource availability in order rasdaemon to process the event
record and issue a repair request in sysfs for the memory sparing operation
in the CXL device.
Note: Based on the feedbacks from the community 'query' sysfs attribute is
removed and reporting memory sparing error record to the userspace are not
supported. Instead userspace issues sparing operation and kernel does the
same to the CXL memory device, when 'maintenance needed' flag set in the
DRAM event record.
Add checks to ensure the memory to be repaired is offline and if online,
then originates from a CXL DRAM error record reported in the current boot
before requesting a memory sparing operation on the device.
Note: Tested memory sparing feature control with QEMU patch
"hw/cxl: Add emulation for memory sparing control feature"
https://lore.kernel.org/linux-cxl/20250509172229.726-1-shiju.jose@huawei.com/T/#m5f38512a95670d75739f9dad3ee91b95c7f5c8d6
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Shiju Jose <shiju.jose@huawei.com>
Reviewed-by: Alison Schofield <alison.schofield@intel.com>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Link: https://patch.msgid.link/20250521124749.817-8-shiju.jose@huawei.com
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
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Update the Documentation/edac/scrub.rst to include use cases and
policies for CXL memory device-based, CXL region-based patrol scrub
control and CXL Error Check Scrub (ECS).
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Shiju Jose <shiju.jose@huawei.com>
Reviewed-by: Fan Ni <fan.ni@samsung.com>
Reviewed-by: Alison Schofield <alison.schofield@intel.com>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Link: https://patch.msgid.link/20250521124749.817-2-shiju.jose@huawei.com
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
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https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next
ASoC: Additional v6.16 updates
A couple more updates on top of the last set I sent you, a new driver
for the ES8375 and a fix for the Cirrus KUnit tests from Jaroslav.
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Starting in the 6.15 kernel, VMBus interrupts are automatically
assigned away from a CPU that is being taken offline. Add documentation
describing this case.
Also add details of Hyper-V behavior when the primary channel of
a VMBus device is closed as the result of unbinding the device's
driver. This behavior has not changed, but it was not previously
documented.
Signed-off-by: Michael Kelley <mhklinux@outlook.com>
Link: https://lore.kernel.org/r/20250520044435.7734-1-mhklinux@outlook.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Message-ID: <20250520044435.7734-1-mhklinux@outlook.com>
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To boot in the VTL mode, VMBus on arm64 needs interrupt description
which the binding documentation lacks. The transactions on the bus are
DMA coherent which is not mentioned as well.
Add the interrupt property and the DMA coherence property to the VMBus
binding. Update the example to match that. Fix typos.
Signed-off-by: Roman Kisel <romank@linux.microsoft.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250428210742.435282-8-romank@linux.microsoft.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Message-ID: <20250428210742.435282-8-romank@linux.microsoft.com>
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Allow userspace to read/write log ratelimits per device (including
enable/disable). Create aer/ sysfs directory to store them and any
future AER configs.
The new sysfs files are:
/sys/bus/pci/devices/*/aer/correctable_ratelimit_burst
/sys/bus/pci/devices/*/aer/correctable_ratelimit_interval_ms
/sys/bus/pci/devices/*/aer/nonfatal_ratelimit_burst
/sys/bus/pci/devices/*/aer/nonfatal_ratelimit_interval_ms
The default values are ratelimit_burst=10, ratelimit_interval_ms=5000, so
if we try to emit more than 10 messages in a 5 second period, some are
suppressed.
Update AER sysfs ABI filename to reflect the broader scope of AER sysfs
attributes (e.g. stats and ratelimits).
Documentation/ABI/testing/sysfs-bus-pci-devices-aer_stats ->
sysfs-bus-pci-devices-aer
Tested using aer-inject[1]. Configured correctable log ratelimit to 5.
Sent 6 AER errors. Observed 5 errors logged while AER stats
(cat /sys/bus/pci/devices/<dev>/aer_dev_correctable) shows 6.
Disabled ratelimiting and sent 6 more AER errors. Observed all 6 errors
logged and accounted in AER stats (12 total errors).
[1] https://git.kernel.org/pub/scm/linux/kernel/git/gong.chen/aer-inject.git
[bhelgaas: note fatal errors are not ratelimited, "aer_report" ->
"aer_info", replace ratelimit_log_enable toggle with *_ratelimit_interval_ms]
Signed-off-by: Karolina Stolarek <karolina.stolarek@oracle.com>
Signed-off-by: Jon Pan-Doh <pandoh@google.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Link: https://patch.msgid.link/20250522232339.1525671-21-helgaas@kernel.org
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Add ratelimits section for rationale and defaults.
[bhelgaas: note fatal errors are not ratelimited]
Signed-off-by: Karolina Stolarek <karolina.stolarek@oracle.com>
Signed-off-by: Jon Pan-Doh <pandoh@google.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Tested-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Acked-by: Paul E. McKenney <paulmck@kernel.org>
Link: https://patch.msgid.link/20250522232339.1525671-20-helgaas@kernel.org
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Merge series from Zhang Yi <zhangyi@everest-semi.com>:
The driver is for codec ES8375 of everest-semi.
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git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux into i2c/for-mergewindow
i2c-host updates for v6.16
Cleanups and refactorings
- Many drivers switched to dev_err_probe()
- Generic cleanups applied to designware, iproc, ismt, mlxbf,
npcm7xx, qcom-geni, pasemi, and thunderx
- davinci: declare I2C mangling support among I2C features
- designware: clean up DTS handling
- designware: fix PM runtime on driver unregister
- imx: improve error logging during probe
- lpc2k: improve checks in probe error path
- xgene-slimpro: improve PCC shared memory handling
- pasemi: improve error handling in reset, smbus clear, timeouts
- tegra: validate buffer length during transfers
- wmt: convert binding to YAML format
Improvements and extended support:
- microchip-core: add SMBus support
- mlxbf: add support for repeated start in block transfers
- mlxbf: improve timer configuration
- npcm: attempt clock toggle recovery before failing init
- octeon: add support for block mode operations
- pasemi: add support for unjam device feature
- riic: add support for bus recovery
New device support:
- MediaTek Dimensity 1200 (MT6893)
- Sophgo SG2044
- Renesas RZ/V2N (R9A09G056)
- Rockchip RK3528
- AMD ISP (new driver)
Misc changes:
- core: add support for Write Disable-aware SPD
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'arm/smmu/bindings', 'fsl/pamu', 'mediatek', 'renesas/ipmmu', 's390', 'intel/vt-d', 'amd/amd-vi' and 'core' into next
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Rust kernel code is supposed to use the custom mapping of C FFI types,
i.e. those from the `ffi` crate, rather than the ones coming from `core`.
Thus, to minimize mistakes and to simplify the code everywhere, just
provide them in the `kernel` prelude and ask in the Coding Guidelines
to use them directly, i.e. as a single segment path.
After this lands, we can start cleaning up the existing users.
Ideally, we would use something like Clippy's `disallowed-types` to
prevent the use of the `core` ones, but that one sees through aliases.
Link: https://lore.kernel.org/rust-for-linux/CANiq72kc4gzfieD-FjuWfELRDXXD2vLgPv4wqk3nt4pjdPQ=qg@mail.gmail.com/
Reviewed-by: Danilo Krummrich <dakr@kernel.org>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Link: https://lore.kernel.org/r/20250413005650.1745894-1-ojeda@kernel.org
[ Reworded content of the documentation to focus on how to use the
aliases first. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
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Add device tree binding documentation for Everest ES8375
Signed-off-by: Zhang Yi <zhangyi@everest-semi.com>
Link: https://patch.msgid.link/20250523025502.23214-2-zhangyi@everest-semi.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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* kvm-arm64/misc-6.16:
: .
: Misc changes and improvements for 6.16:
:
: - Add a new selftest for the SVE host state being corrupted by a guest
:
: - Keep HCR_EL2.xMO set at all times for systems running with the kernel at EL2,
: ensuring that the window for interrupts is slightly bigger, and avoiding
: a pretty bad erratum on the AmpereOne HW
:
: - Replace a couple of open-coded on/off strings with str_on_off()
:
: - Get rid of the pKVM memblock sorting, which now appears to be superflous
:
: - Drop superflous clearing of ICH_LR_EOI in the LR when nesting
:
: - Add workaround for AmpereOne's erratum AC04_CPU_23, which suffers from
: a pretty bad case of TLB corruption unless accesses to HCR_EL2 are
: heavily synchronised
:
: - Add a per-VM, per-ITS debugfs entry to dump the state of the ITS tables
: in a human-friendly fashion
: .
KVM: arm64: Fix documentation for vgic_its_iter_next()
KVM: arm64: vgic-its: Add debugfs interface to expose ITS tables
arm64: errata: Work around AmpereOne's erratum AC04_CPU_23
KVM: arm64: nv: Remove clearing of ICH_LR<n>.EOI if ICH_LR<n>.HW == 1
KVM: arm64: Drop sort_memblock_regions()
KVM: arm64: selftests: Add test for SVE host corruption
KVM: arm64: Force HCR_EL2.xMO to 1 at all times in VHE mode
KVM: arm64: Replace ternary flags with str_on_off() helper
Signed-off-by: Marc Zyngier <maz@kernel.org>
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* kvm-arm64/nv-nv:
: .
: Flick the switch on the NV support by adding the missing piece
: in the form of the VNCR page management. From the cover letter:
:
: "This is probably the most interesting bit of the whole NV adventure.
: So far, everything else has been a walk in the park, but this one is
: where the real fun takes place.
:
: With FEAT_NV2, most of the NV support revolves around tricking a guest
: into accessing memory while it tries to access system registers. The
: hypervisor's job is to handle the context switch of the actual
: registers with the state in memory as needed."
: .
KVM: arm64: nv: Release faulted-in VNCR page from mmu_lock critical section
KVM: arm64: nv: Handle TLBI S1E2 for VNCR invalidation with mmu_lock held
KVM: arm64: nv: Hold mmu_lock when invalidating VNCR SW-TLB before translating
KVM: arm64: Document NV caps and vcpu flags
KVM: arm64: Allow userspace to request KVM_ARM_VCPU_EL2*
KVM: arm64: nv: Remove dead code from ERET handling
KVM: arm64: nv: Plumb TLBI S1E2 into system instruction dispatch
KVM: arm64: nv: Add S1 TLB invalidation primitive for VNCR_EL2
KVM: arm64: nv: Program host's VNCR_EL2 to the fixmap address
KVM: arm64: nv: Handle VNCR_EL2 invalidation from MMU notifiers
KVM: arm64: nv: Handle mapping of VNCR_EL2 at EL2
KVM: arm64: nv: Handle VNCR_EL2-triggered faults
KVM: arm64: nv: Add userspace and guest handling of VNCR_EL2
KVM: arm64: nv: Add pseudo-TLB backing VNCR_EL2
KVM: arm64: nv: Don't adjust PSTATE.M when L2 is nesting
KVM: arm64: nv: Move TLBI range decoding to a helper
KVM: arm64: nv: Snapshot S1 ASID tagging information during walk
KVM: arm64: nv: Extract translation helper from the AT code
KVM: arm64: nv: Allocate VNCR page when required
arm64: sysreg: Add layout for VNCR_EL2
Signed-off-by: Marc Zyngier <maz@kernel.org>
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Rewrite the textual description for the WonderMedia I2C controller
as YAML schema, and switch the filename to follow the compatible
string.
The controller only supports two bus speeds (100kHz and 400kHz)
so restrict clock-frequency values accordingly.
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Alexey Charkov <alchark@gmail.com>
Link: https://lore.kernel.org/r/20250506-vt8500-i2c-binding-v3-1-401c3e090a88@gmail.com
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
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The register space described by DT node of compatible
mediatek,mt8365-infracfg-nao exposes a variety of unrelated registers,
including registers for controlling bus protection on the MT8365 SoC,
which is used by the power domain controller through a syscon.
Add this compatible to the syscon binding.
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20250502-mt8365-infracfg-nao-compatible-v1-1-e40394573f98@collabora.com
Signed-off-by: Lee Jones <lee@kernel.org>
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DTS example in the bindings should be indented with 2- or 4-spaces and
aligned with opening '- |', so correct any differences like 3-spaces or
mixtures 2- and 4-spaces in one binding. While re-indenting, drop
unused labels.
No functional changes here, but saves some comments during reviews of
new patches built on existing code.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250501145125.59952-4-krzysztof.kozlowski@linaro.org
Signed-off-by: Lee Jones <lee@kernel.org>
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Binding example should not contain other nodes, e.g. consumers of
resource providers, because this is completely redundant and adds
unnecessary bloat.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250501145125.59952-3-krzysztof.kozlowski@linaro.org
Signed-off-by: Lee Jones <lee@kernel.org>
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Add compat for Smart Peripheral System (SPS) Interrupt Controller (SIC)
present on Qualcomm APQ8064 SoC.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Acked-by: "Rob Herring (Arm)" <robh@kernel.org>
Link: https://lore.kernel.org/r/20250425-fix-nexus-4-v3-3-da4e39e86d41@oss.qualcomm.com
Signed-off-by: Lee Jones <lee@kernel.org>
|
|
Add compat string for Qualcomm MultiMedia SubSystem System FPB.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Acked-by: "Rob Herring (Arm)" <robh@kernel.org>
Link: https://lore.kernel.org/r/20250425-fix-nexus-4-v3-2-da4e39e86d41@oss.qualcomm.com
Signed-off-by: Lee Jones <lee@kernel.org>
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Add compatible for Mediatek mt7988 topmisc syscon.
This hardware block contains 2 functional blocks
- a powercontroller which is not needed (switched by atf)
- a multiplexer for high-speed Combo-Phy
This compatible is only for the multiplexer part.
Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20250422132438.15735-6-linux@fw-web.de
Signed-off-by: Lee Jones <lee@kernel.org>
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|
Add a compatible string for the scpsys block found in the MediaTek
Dimensity 1200 (MT6893) SoC.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Acked-by: "Rob Herring (Arm)" <robh@kernel.org>
Link: https://lore.kernel.org/r/20250416120225.147826-1-angelogioacchino.delregno@collabora.com
Signed-off-by: Lee Jones <lee@kernel.org>
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The Samsung S2MPG10 PMIC is similar to the existing PMICs supported by
this binding.
It is a Power Management IC for mobile applications with buck
converters, various LDOs, power meters, RTC, clock outputs, and
additional GPIOs interfaces.
Unlike other Samsung PMICs, communication is not via I2C, but via the
Samsung ACPM firmware, it therefore doesn't need a 'reg' property but
needs to be a child of the ACPM firmware node instead.
S2MPG10 can also act as a system power controller allowing
implementation of a true cold-reset of the system.
Support for the other components like regulators and power meters will
be added in subsequent future patches.
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: André Draszik <andre.draszik@linaro.org>
Link: https://lore.kernel.org/r/20250409-s2mpg10-v4-1-d66d5f39b6bf@linaro.org
Signed-off-by: Lee Jones <lee@kernel.org>
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Add SAMA7D65 SECUMOD compatible string to DT bindings documentation.
Signed-off-by: Ryan Wanner <Ryan.Wanner@microchip.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/2fdd14313d9cf008dbc4a63a91ba0cb5cf372ad6.1744666011.git.Ryan.Wanner@microchip.com
Signed-off-by: Lee Jones <lee@kernel.org>
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Convert Microchip AT91 secumod to YAML format.
Signed-off-by: Ryan Wanner <Ryan.Wanner@microchip.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/a999a719a652ec834f1176d69a3e9b207cbd63e6.1744666011.git.Ryan.Wanner@microchip.com
Signed-off-by: Lee Jones <lee@kernel.org>
|
|
Add SAMA7D65 GPBR compatible to DT bindings documentation.
Signed-off-by: Ryan Wanner <Ryan.Wanner@microchip.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/ddbcb306699b8c09f3210d714c0701afa1a7cb96.1744666011.git.Ryan.Wanner@microchip.com
Signed-off-by: Lee Jones <lee@kernel.org>
|
|
Split installation instructions for Ubuntu into 2 different sections:
- For Ubuntu 25.04: this release provides easy-to-install Rust packages.
- For Ubuntu 24.10 and below: these releases provide rust-1.80 and
bindgen-0.65, which do not set their tools as defaults. The instructions
for these versions have been updated to configure Rust tools properly.
Signed-off-by: Igor Korotin <igor.korotin@yahoo.com>
Link: https://lore.kernel.org/r/20250402160047.1827500-1-igor.korotin@yahoo.com
[ Dropped 24.10 -- it is soon out of support and their `bindgen` issue
(reported as issue #2086639) was never patched anyway. Removed trailing
spaces. Split into subheaders. Added `rustfmt` link. Removed spurious
backquotes. Reworded contents slightly. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
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DAMON was initially developed only for data access monitoring, and then
extended for not only access monitoring but also access-aware system
operations (DAMOS). But the documents have old titles and brief
introductions for only the monitoring part. Update the titles and the
brief introductions to explain DAMOS part together.
Link: https://lkml.kernel.org/r/20250513002715.40126-7-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Brendan Higgins <brendan.higgins@linux.dev>
Cc: David Gow <davidgow@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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The commit 7e856617a1f3 ("dt-bindings: mmc: Add support for rk3576
eMMC") limited use of power-domains to Rockchip RK3576.
Remove the power-domains: false to allow use of power-domains with more
controllers, e.g. with SDHCI on Rockchip RK3528.
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20250518220707.669515-6-jonas@kwiboo.se
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
|
