mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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loongarch-next
6583 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Christoph Hellwig
|
194df9f66d |
mm: remove NR_BOUNCE zone stat
The stat is always 0 now, so remove it and hardwire the user visible output to 0. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Link: https://lore.kernel.org/r/20250505081138.3435992-8-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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Will McVicker
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95deee37a1 |
platform: Fix race condition during DMA configure at IOMMU probe time
To avoid a race between the IOMMU probing thread and the device driver
async probing thread during configuration of the platform DMA, update
`platform_dma_configure()` to read `dev->driver` once and test if it's
NULL before using it. This ensures that we don't de-reference an invalid
platform driver pointer if the device driver is asynchronously bound
while configuring the DMA.
Fixes:
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Eric Biggers
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4f894483c9 |
firmware_loader: use SHA-256 library API instead of crypto_shash API
This user of SHA-256 does not support any other algorithm, so the crypto_shash abstraction provides no value. Just use the SHA-256 library API instead, which is much simpler and easier to use. Also take advantage of printk's built-in hex conversion using %*phN. Signed-off-by: Eric Biggers <ebiggers@google.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://lore.kernel.org/r/20250428190909.852705-1-ebiggers@kernel.org Signed-off-by: Danilo Krummrich <dakr@kernel.org> |
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Linus Torvalds
|
3929527918 |
Modules fixes for v6.15-rc5
A single series is present to properly handle the module_kobject creation. It fixes a problem with missing /sys/module/<module>/drivers for built-in modules. The fix has been on linux-next for two weeks with no reported issues. -----BEGIN PGP SIGNATURE----- iQFIBAABCAAyFiEEIduBR9MnFA82q/jtumpXJwqY6poFAmgSH2YUHHBldHIucGF2 bHVAc3VzZS5jb20ACgkQumpXJwqY6poL/wf/TZEux9aieu8VOhPbV1Mo1npVAeT7 MJ5R4M6QKxPNvvBiXK5lWSVy5IPtcuwkbyEfKxV/CS668FwJeFpGFb91rRY108He EUHjj5NtZ1WhEHFRBgJPLydGZGGtJzxy3yg26x6wO58VJrIx/H3HU3jgsnj1m32a fA1cbo4Yo9gnk0YzI2KDu6A+bXi8zJVpyYDU9Ir4mdy+CVd5+vN9WypzrjHXbMya 2xhd9768sVmShY9K5+DlOXF4stVsP6CbgWGxhwIbdfLvY977QaBhrr+emrPE3uYt 5g+rg3v7ciuW14D5rLPWqZ5aXinjNt4vc7maNA9sJLW5wLOiWGXjhseUFg== =6rT4 -----END PGP SIGNATURE----- Merge tag 'modules-6.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/modules/linux Pull modules fixes from Petr Pavlu: "A single series to properly handle the module_kobject creation. This fixes a problem with missing /sys/module/<module>/drivers for built-in modules" * tag 'modules-6.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/modules/linux: drivers: base: handle module_kobject creation kernel: globalize lookup_or_create_module_kobject() kernel: refactor lookup_or_create_module_kobject() kernel: param: rename locate_module_kobject |
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Thorsten Blum
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d30e845b0a
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regcache: Use sort()'s default swap() implementation
Use sort()'s default swap() implementation and remove the custom regcache_defaults_swap() function. Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev> Link: https://patch.msgid.link/20250428061318.88859-2-thorsten.blum@linux.dev Signed-off-by: Mark Brown <broonie@kernel.org> |
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Bence Csókás
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73db799bf5 |
PM: runtime: Add new devm functions
Add `devm_pm_runtime_set_active_enabled()` and `devm_pm_runtime_get_noresume()` for simplifying common cases in drivers. Signed-off-by: Bence Csókás <csokas.bence@prolan.hu> Link: https://patch.msgid.link/20250327195928.680771-3-csokas.bence@prolan.hu Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
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Greg Kroah-Hartman
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0e4965c80e |
Immutable tag for the driver core tree to pull from
devres: Move devm_*_action*() APIs to devres.h devres: Add devm_is_action_added() helper -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEFp3rbAvDxGAT0sefEacuoBRx13IFAmgPMD4ACgkQEacuoBRx 13KP1Q//RV+2Nk8YDBj30kkqKzFy3SSNidLxW4CsV80H3mNbhWL/8BnEbR04i6Bd N7FFuyrGjmIjjJmV20eRbsPSFbGmnwElmOokwkHeEX+9BSOyyyRjoP0FtD8lw6uP 3idM5nU1k+EJHojk7Cevw1Mz/MAq+QindQeABjYkwvYSonVXieI3OKSPDAxzRKxU gxYh5lDPs2nrNmVmQtP36pJMlBDHZUayhwci+g8wh4wtkjzYLKfuQWBVD8dKALRf N6at3je5zFF3FSvP1zs7O7iZu3mC/GvVE6NSUzWu0XTeqhqRsT58FKQ7DHX5KbQN opgY6sAiD6WSLv30YcdYcH8XxUVPsezibW4mNuhF5AK3vsnbMKTzrCKOWK1ijTJP bdFI0yN5FuDJjpieCcWeDovovlZE2unTgn831pplncIHOF3sTUIOnC65sqO4Oawh oQsLkZH9Dq3u+GH4pgo+w7MVgnI5YoUMcod2uHbIpXCaz240DLWtzv5mU1lEA3Pz kCbNOmSDgjV7SDIw624xGBk3Iw+XnzFlDiq+mCqK6DEPLt4VK/3BBcgTMGmDdt8K VSx8OKARpTWbjXp6wUVWuaEZrMZRqwUqAVqBXy6MqXK6RGsXum5G2iPzr/LsLFOo sX5dtw03ZtUXHuD9IV08yqQoUleKq3K0bNCM5PRCuGe5cUZQsmA= =1HCW -----END PGP SIGNATURE----- Merge tag 'gpiod-devm-is-action-added-for-v6.16-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/brgl/linux into driver-core-next Immutable tag for the driver core tree to pull from devres: Move devm_*_action*() APIs to devres.h devres: Add devm_is_action_added() helper * tag 'gpiod-devm-is-action-added-for-v6.16-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/brgl/linux: devres: Add devm_is_action_added() helper devres: Move devm_*_action*() APIs to devres.h |
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Greg Kroah-Hartman
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785151f50d |
Linux 6.15-rc4
-----BEGIN PGP SIGNATURE----- iQFSBAABCgA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAmgOrWseHHRvcnZhbGRz QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiGFyIH/AhXcuA8y8rk43mo t+0GO7JR4dnr4DIl74GgDjCXlXiKCT7EXMfD/ABdofTxV4Pbyv+pUODlg1E6eO9U C1WWM5PPNBGDDEVSQ3Yu756nr0UoiFhvW0R6pVdou5cezCWAtIF9LTN8DEUgis0u EUJD9+/cHAMzfkZwabjm/HNsa1SXv2X47MzYv/PdHKr0htEPcNHF4gqBrBRdACGy FJtaCKhuPf6TcDNXOFi5IEWMXrugReRQmOvrXqVYGa7rfUFkZgsAzRY6n/rUN5Z9 FAgle4Vlv9ohVYj9bXX8b6wWgqiKRpoN+t0PpRd6G6ict1AFBobNGo8LH3tYIKqZ b/dCGNg= =xDGd -----END PGP SIGNATURE----- Merge 6.15-rc4 into driver-core-next We need the driver core fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Andy Shevchenko
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e383bb8f95 |
devres: Add devm_is_action_added() helper
In some code we would like to know if the action in device managed resources was added by devm_add_action() family of calls. Introduce a helper for that. Reviewed-by: Raag Jadav <raag.jadav@intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Zijun Hu <quic_zijuhu@quicinc.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://lore.kernel.org/r/20250220162238.2738038-3-andriy.shevchenko@linux.intel.com Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> |
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Linus Torvalds
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eb98f30442 |
vfs-6.15-rc4.fixes
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCaAvyTwAKCRCRxhvAZXjc okgIAQDlcp1CoIBOxNaqg9PzuWjg4uaNeiKqDVliy83bu8zGhAEAmwLSVEVJGvJl ACFkKgc7+qaa3p67UmXf2HVrIg79+ww= =o5Iw -----END PGP SIGNATURE----- Merge tag 'vfs-6.15-rc4.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull vfs fixes from Christian Brauner: - For some reason we went from zero to three maintainers for HFS/HFS+ in a matter of days. The lesson to learn from this might just be that we need to threaten code removal more often!? - Fix a regression introduced by enabling large folios for lage logical block sizes. This has caused issues for noref migration with large folios due to sleeping while in an atomic context. New sleeping variants of pagecache lookup helpers are introduced. These helpers take the folio lock instead of the mapping's private spinlock. The problematic users are converted to the sleeping variants and serialize against noref migration. Atomic users will bail on seeing the new BH_Migrate flag. This also shrinks the critical region of the mapping's private lock and the new blocking callers reduce contention on the spinlock for bdev mappings. - Fix two bugs in do_move_mount() when with MOVE_MOUNT_BENEATH. The first bug is using a mountpoint that is located on a mount we're not holding a reference to. The second bug is putting the mountpoint after we've called namespace_unlock() as it's no longer guaranteed that it does stay a mountpoint. - Remove a pointless call to vfs_getattr_nosec() in the devtmpfs code just to query i_mode instead of simply querying the inode directly. This also avoids lifetime issues for the dm code by an earlier bugfix this cycle that moved bdev_statx() handling into vfs_getattr_nosec(). - Fix AT_FDCWD handling with getname_maybe_null() in the xattr code. - Fix a performance regression for files when multiple callers issue a close when it's not the last reference. - Remove a duplicate noinline annotation from pipe_clear_nowait(). * tag 'vfs-6.15-rc4.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: fs/xattr: Fix handling of AT_FDCWD in setxattrat(2) and getxattrat(2) MAINTAINERS: hfs/hfsplus: add myself as maintainer splice: remove duplicate noinline from pipe_clear_nowait devtmpfs: don't use vfs_getattr_nosec to query i_mode fix a couple of races in MNT_TREE_BENEATH handling by do_move_mount() fs: fall back to file_ref_put() for non-last reference mm/migrate: fix sleep in atomic for large folios and buffer heads fs/ext4: use sleeping version of sb_find_get_block() fs/jbd2: use sleeping version of __find_get_block() fs/ocfs2: use sleeping version of __find_get_block() fs/buffer: use sleeping version of __find_get_block() fs/buffer: introduce sleeping flavors for pagecache lookups MAINTAINERS: add HFS/HFS+ maintainers fs/buffer: split locking for pagecache lookups |
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Zijun Hu
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142ba31d8b |
PM: wakeup: Do not expose 4 device wakeup source APIs
The following 4 APIs are only used by drivers/base/power/wakeup.c internally. - wakeup_source_create() - wakeup_source_destroy() - wakeup_source_add() - wakeup_source_remove() Do not expose them by making them as static functions. Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com> Link: https://lore.kernel.org/r/20250420-fix_power-v2-1-9b938d2283aa@quicinc.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Dan Carpenter
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2806c6b8f3 |
driver core: auxiliary bus: Fix IS_ERR() vs NULL mixup in __devm_auxiliary_device_create()
This code was originally going to use error pointers but we decided it
should return NULL instead. The error pointer code in
__devm_auxiliary_device_create() was left over from the first version.
Update it to use NULL. No callers have been merged yet, so that makes
this change simple and self contained.
Fixes:
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Christoph Hellwig
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e079d7c4db
|
devtmpfs: don't use vfs_getattr_nosec to query i_mode
The recent move of the bdev_statx call to the low-level vfs_getattr_nosec
helper caused it being used by devtmpfs, which leads to deadlocks in
md teardown due to the block device lookup and put interfering with the
unusual lifetime rules in md.
But as handle_remove only works on inodes created and owned by devtmpfs
itself there is no need to use vfs_getattr_nosec vs simply reading the
mode from the inode directly. Switch to that to avoid the bdev lookup
or any other unintentional side effect.
Reported-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Reported-by: Xiao Ni <xni@redhat.com>
Fixes:
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Matti Vaittinen
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f243036314 |
property: Add functions to iterate named child
There are a few use-cases where child nodes with a specific name need to be parsed. Code like: fwnode_for_each_child_node() if (fwnode_name_eq()) ... can be found from a various drivers/subsystems. Adding a macro for this can simplify things a bit. In a few cases the data from the found nodes is later added to an array, which is allocated based on the number of found nodes. One example of such use is the IIO subsystem's ADC channel nodes, where the relevant nodes are named as channel[@N]. Add helpers for iterating and counting device's sub-nodes with certain name instead of open-coding this in every user. Suggested-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com> Link: https://patch.msgid.link/2767173b7b18e974c0bac244688214bd3863ff06.1742560649.git.mazziesaccount@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> |
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Rafael J. Wysocki
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443046d1ad |
PM: sleep: Make suspend of devices more asynchronous
In analogy with previous changes, make device_suspend_late() and device_suspend_noirq() start the async suspend of the device's parent after the device itself has been processed and make dpm_suspend_late() and dpm_noirq_suspend_devices() start processing "async" leaf devices (that is, devices without children) upfront so they don't need to wait for the other devices they don't depend on. This change reduces the total duration of device suspend on some systems measurably, but not significantly. Suggested-by: Saravana Kannan <saravanak@google.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://patch.msgid.link/1924195.CQOukoFCf9@rjwysocki.net |
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Rafael J. Wysocki
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aa7a9275ab |
PM: sleep: Suspend async parents after suspending children
In analogy with the previous change affecting the resume path, make device_suspend() start the async suspend of the device's parent after the device itself has been processed and make dpm_suspend() start processing "async" leaf devices (that is, devices without children) upfront so they don't need to wait for the "sync" devices they don't depend on. On the Dell XPS13 9360 in my office, this change reduces the total duration of device suspend by approximately 100 ms (over 20%). Suggested-by: Saravana Kannan <saravanak@google.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://patch.msgid.link/3541233.QJadu78ljV@rjwysocki.net |
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Rafael J. Wysocki
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0cbef962ce |
PM: sleep: Resume children after resuming the parent
According to [1], the handling of device suspend and resume, and particularly the latter, involves unnecessary overhead related to starting new async work items for devices that cannot make progress right away because they have to wait for other devices. To reduce this problem in the resume path, use the observation that starting the async resume of the children of a device after resuming the parent is likely to produce less scheduling and memory management noise than starting it upfront while at the same time it should not increase the resume duration substantially. Accordingly, modify the code to start the async resume of the device's children when the processing of the parent has been completed in each stage of device resume and only start async resume upfront for devices without parents. Also make it check if a given device can be resumed asynchronously before starting the synchronous resume of it in case it will have to wait for another that is already resuming asynchronously. In addition to making the async resume of devices more friendly to systems with relatively less computing resources, this change is also preliminary for analogous changes in the suspend path. On the systems where it has been tested, this change by itself does not affect the overall system resume duration in a measurable way. Link: https://lore.kernel.org/linux-pm/20241114220921.2529905-1-saravanak@google.com/ [1] Suggested-by: Saravana Kannan <saravanak@google.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://patch.msgid.link/22630663.EfDdHjke4D@rjwysocki.net |
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Dave Hansen
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4e2c719782 |
x86/cpu: Help users notice when running old Intel microcode
Old microcode is bad for users and for kernel developers.
For users, it exposes them to known fixed security and/or functional
issues. These obviously rarely result in instant dumpster fires in
every environment. But it is as important to keep your microcode up
to date as it is to keep your kernel up to date.
Old microcode also makes kernels harder to debug. A developer looking
at an oops need to consider kernel bugs, known CPU issues and unknown
CPU issues as possible causes. If they know the microcode is up to
date, they can mostly eliminate known CPU issues as the cause.
Make it easier to tell if CPU microcode is out of date. Add a list
of released microcode. If the loaded microcode is older than the
release, tell users in a place that folks can find it:
/sys/devices/system/cpu/vulnerabilities/old_microcode
Tell kernel kernel developers about it with the existing taint
flag:
TAINT_CPU_OUT_OF_SPEC
== Discussion ==
When a user reports a potential kernel issue, it is very common
to ask them to reproduce the issue on mainline. Running mainline,
they will (independently from the distro) acquire a more up-to-date
microcode version list. If their microcode is old, they will
get a warning about the taint and kernel developers can take that
into consideration when debugging.
Just like any other entry in "vulnerabilities/", users are free to
make their own assessment of their exposure.
== Microcode Revision Discussion ==
The microcode versions in the table were generated from the Intel
microcode git repo:
8ac9378a8487 ("microcode-20241112 Release")
which as of this writing lags behind the latest microcode-20250211.
It can be argued that the versions that the kernel picks to call "old"
should be a revision or two old. Which specific version is picked is
less important to me than picking *a* version and enforcing it.
This repository contains only microcode versions that Intel has deemed
to be OS-loadable. It is quite possible that the BIOS has loaded a
newer microcode than the latest in this repo. If this happens, the
system is considered to have new microcode, not old.
Specifically, the sysfs file and taint flag answer the question:
Is the CPU running on the latest OS-loadable microcode,
or something even later that the BIOS loaded?
In other words, Intel never publishes an authoritative list of CPUs
and latest microcode revisions. Until it does, this is the best that
Linux can do.
Also note that the "intel-ucode-defs.h" file is simple, ugly and
has lots of magic numbers. That's on purpose and should allow a
single file to be shared across lots of stable kernel regardless of if
they have the new "VFM" infrastructure or not. It was generated with
a dumb script.
== FAQ ==
Q: Does this tell me if my system is secure or insecure?
A: No. It only tells you if your microcode was old when the
system booted.
Q: Should the kernel warn if the microcode list itself is too old?
A: No. New kernels will get new microcode lists, both mainline
and stable. The only way to have an old list is to be running
an old kernel in which case you have bigger problems.
Q: Is this for security or functional issues?
A: Both.
Q: If a given microcode update only has functional problems but
no security issues, will it be considered old?
A: Yes. All microcode image versions within a microcode release
are treated identically. Intel appears to make security
updates without disclosing them in the release notes. Thus,
all updates are considered to be security-relevant.
Q: Who runs old microcode?
A: Anybody with an old distro. This happens all the time inside
of Intel where there are lots of weird systems in labs that
might not be getting regular distro updates and might also
be running rather exotic microcode images.
Q: If I update my microcode after booting will it stop saying
"Vulnerable"?
A: No. Just like all the other vulnerabilies, you need to
reboot before the kernel will reassess your vulnerability.
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: "Ahmed S. Darwish" <darwi@linutronix.de>
Cc: Andrew Cooper <andrew.cooper3@citrix.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: John Ogness <john.ogness@linutronix.de>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/all/20250421195659.CF426C07%40davehans-spike.ostc.intel.com
(cherry picked from commit 9127865b15eb0a1bd05ad7efe29489c44394bdc1)
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Shyam Saini
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f95bbfe185 |
drivers: base: handle module_kobject creation
module_add_driver() relies on module_kset list for /sys/module/<built-in-module>/drivers directory creation. Since, commit |
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Zijun Hu
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31e4e12e0e |
software node: Correct a OOB check in software_node_get_reference_args()
software_node_get_reference_args() wants to get @index-th element, so the property value requires at least '(index + 1) * sizeof(*ref)' bytes but that can not be guaranteed by current OOB check, and may cause OOB for malformed property. Fix by using as OOB check '((index + 1) * sizeof(*ref) > prop->length)'. Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com> Link: https://lore.kernel.org/r/20250414-fix_swnode-v2-1-9c9e6ae11eab@quicinc.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Gavin Shan
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b9792abb76 |
drivers/base/memory: Avoid overhead from for_each_present_section_nr()
for_each_present_section_nr() was introduced to add_boot_memory_block() by commit |
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Lizhi Xu
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bc2c46426f |
software node: Prevent link creation failure from causing kobj reference count imbalance
syzbot reported a uaf in software_node_notify_remove. [1]
When any of the two sysfs_create_link() in software_node_notify() fails,
the swnode->kobj reference count will not increase normally, which will
cause swnode to be released incorrectly due to the imbalance of kobj reference
count when executing software_node_notify_remove().
Increase the reference count of kobj before creating the link to avoid uaf.
[1]
BUG: KASAN: slab-use-after-free in software_node_notify_remove+0x1bc/0x1c0 drivers/base/swnode.c:1108
Read of size 1 at addr ffff888033c08908 by task syz-executor105/5844
Freed by task 5844:
software_node_notify_remove+0x159/0x1c0 drivers/base/swnode.c:1106
device_platform_notify_remove drivers/base/core.c:2387 [inline]
Fixes:
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Leon Romanovsky
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10076ae013 |
drivers/base: Extend documentation with preferred way to use auxbus
Document the preferred way to use auxiliary bus. Signed-off-by: Leon Romanovsky <leon@kernel.org> Link: https://lore.kernel.org/r/206e8c249f630abd3661deb36b84b26282241040.1743510317.git.leon@kernel.org [ reworded the text a bit - gregkh ] Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Raag Jadav
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f407a8a28a |
devres: simplify devm_kstrdup() using devm_kmemdup()
devm_kstrdup() logic pretty much reflects devm_kmemdup() for strings, so just reuse it. Signed-off-by: Raag Jadav <raag.jadav@intel.com> Link: https://lore.kernel.org/r/20250409105432.1852355-1-raag.jadav@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Woody Zhang
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8c016bc306 |
platform: replace magic number with macro PLATFORM_DEVID_NONE
Replace magic number with PLATFORM_DEVID_NONE to make it more informative. Signed-off-by: Woody Zhang <woodyzhang666@gmail.com> Link: https://lore.kernel.org/r/20250330103627.2370771-2-woodyzhang666@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Johan Hovold
|
5bcca36898 |
component: do not try to unbind unbound components
Error handling is apparently hard and driver authors often get it wrong. Continue to warn but do not try to unbind components that have never been bound in order to avoid crashing systems where such a buggy teardown path is hit. Signed-off-by: Johan Hovold <johan+linaro@kernel.org> Link: https://lore.kernel.org/r/20250228081824.4640-1-johan+linaro@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Dmitry Torokhov
|
18daa52418 |
driver core: fix potential NULL pointer dereference in dev_uevent()
If userspace reads "uevent" device attribute at the same time as another threads unbinds the device from its driver, change to dev->driver from a valid pointer to NULL may result in crash. Fix this by using READ_ONCE() when fetching the pointer, and take bus' drivers klist lock to make sure driver instance will not disappear while we access it. Use WRITE_ONCE() when setting the driver pointer to ensure there is no tearing. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Reviewed-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Link: https://lore.kernel.org/r/20250311052417.1846985-3-dmitry.torokhov@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Dmitry Torokhov
|
04d3e5461c |
driver core: introduce device_set_driver() helper
In preparation to closing a race when reading driver pointer in dev_uevent() code, instead of setting device->driver pointer directly introduce device_set_driver() helper. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Reviewed-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Link: https://lore.kernel.org/r/20250311052417.1846985-2-dmitry.torokhov@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Dmitry Torokhov
|
dc1771f718 |
Revert "drivers: core: synchronize really_probe() and dev_uevent()"
This reverts commit
|
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Jerome Brunet
|
eaa0d30216 |
driver core: auxiliary bus: add device creation helpers
Add helper functions to create a device on the auxiliary bus. This is meant for fairly simple usage of the auxiliary bus, to avoid having the same code repeated in the different drivers. Suggested-by: Stephen Boyd <sboyd@kernel.org> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Link: https://lore.kernel.org/r/20250218-aux-device-create-helper-v4-1-c3d7dfdea2e6@baylibre.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Kurt Borja
|
d487858ebf |
driver core: faux: Add sysfs groups after probing
Manually add sysfs groups after the faux_device_ops's probe succeeds. Likewise remove these groups just before calling the faux_devices_ops's remove callback. This approach approximates the order in which the driver core adds and removes the driver's .dev_groups of a device to avoid lifetime issues. This is done specifically to avoid using the device's .groups member, which adds groups before the device is even registered to the bus. This lets consumers of this API, initialize resources on the .probe callback and then use them inside is_visible/show/store methods, through dev_get_drvdata() without races. Cc: Rafael J. Wysocki <rafael@kernel.org> Cc: Danilo Krummrich <dakr@kernel.org> Signed-off-by: Kurt Borja <kuurtb@gmail.com> Link: https://lore.kernel.org/r/20250327-faux-groups-v2-1-745a3cf0bc16@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Andy Shevchenko
|
1490cbb9db |
device property: Split fwnode_get_child_node_count()
The new helper is introduced to allow counting the child firmware nodes of their parent without requiring a device to be passed. This also makes the fwnode and device property API more symmetrical with the rest. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: "Rafael J. Wysocki" <rafael@kernel.org> Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Link: https://lore.kernel.org/r/20250310150835.3139322-2-andriy.shevchenko@linux.intel.com Signed-off-by: Lee Jones <lee@kernel.org> |
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|
Thomas Gleixner
|
8fa7292fee |
treewide: Switch/rename to timer_delete[_sync]()
timer_delete[_sync]() replaces del_timer[_sync](). Convert the whole tree over and remove the historical wrapper inlines. Conversion was done with coccinelle plus manual fixups where necessary. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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|
Linus Torvalds
|
01ecadbe09 |
cxl for v6.15
- Add support for Global Persistent Flush (GPF)
- Cleanup of DPA partition metadata handling
- Remove the CXL_DECODER_MIXED enum that's not needed anymore
- Introduce helpers to access resource and perf meta data
- Introduce 'struct cxl_dpa_partition' and 'struct cxl_range_info'
- Make cxl_dpa_alloc() DPA partition number agnostic
- Remove cxl_decoder_mode
- Cleanup partition size and perf helpers
- Remove unused CXL partition values
- Add logging support for CXL CPER endpoint and port protocol errors
- Prefix protocol error struct and function names with cxl_
- Move protocol error definitions and structures to a common location
- Remove drivers/firmware/efi/cper_cxl.h to include/linux/cper.h
- Add support in GHES to process CXL CPER protocol errors
- Process CXL CPER protocol errors
- Add trace logging for CXL PCIe port RAS errors
- Remove redundant gp_port init
- Add validation of cxl device serial number
- CXL ABI documentation updates/fixups
- A series that uses guard() to clean up open coded mutex lockings and remove gotos for error
handling.
- Some followup patches to support dirty shutdown accounting
- Add helper to retrieve DVSEC offset for dirty shutdown registers
- Rename cxl_get_dirty_shutdown() to cxl_arm_dirty_shutdown()
- Add support for dirty shutdown count via sysfs
- cxl_test support for dirty shutdown
- A series to support CXL mailbox Features commands. Mostly in preparation for CXL EDAC
code to utilize the Features commands. It's also in preparation for CXL fwctl support
to utilize the CXL Features. The commands include "Get Supported Features", "Get Feature",
and "Set Feature".
- A series to support extended linear cache support described by the ACPI HMAT table. The
addition helps enumerate the cache and also provides additional RAS reporting support for
configuration with extended linear cache. (and related fixes for the
series).
- An update to cxl_test to support a 3-way capable CFMWS.
- A documentation fix to remove unused "mixed mode".
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Merge tag 'cxl-for-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl
Pull Compute Express Link (CXL) updates from Dave Jiang:
- Add support for Global Persistent Flush (GPF)
- Cleanup of DPA partition metadata handling:
- Remove the CXL_DECODER_MIXED enum that's not needed anymore
- Introduce helpers to access resource and perf meta data
- Introduce 'struct cxl_dpa_partition' and 'struct cxl_range_info'
- Make cxl_dpa_alloc() DPA partition number agnostic
- Remove cxl_decoder_mode
- Cleanup partition size and perf helpers
- Remove unused CXL partition values
- Add logging support for CXL CPER endpoint and port protocol errors:
- Prefix protocol error struct and function names with cxl_
- Move protocol error definitions and structures to a common location
- Remove drivers/firmware/efi/cper_cxl.h to include/linux/cper.h
- Add support in GHES to process CXL CPER protocol errors
- Process CXL CPER protocol errors
- Add trace logging for CXL PCIe port RAS errors
- Remove redundant gp_port init
- Add validation of cxl device serial number
- CXL ABI documentation updates/fixups
- A series that uses guard() to clean up open coded mutex lockings and
remove gotos for error handling.
- Some followup patches to support dirty shutdown accounting:
- Add helper to retrieve DVSEC offset for dirty shutdown registers
- Rename cxl_get_dirty_shutdown() to cxl_arm_dirty_shutdown()
- Add support for dirty shutdown count via sysfs
- cxl_test support for dirty shutdown
- A series to support CXL mailbox Features commands.
Mostly in preparation for CXL EDAC code to utilize the Features
commands. It's also in preparation for CXL fwctl support to utilize
the CXL Features. The commands include "Get Supported Features", "Get
Feature", and "Set Feature".
- A series to support extended linear cache support described by the
ACPI HMAT table.
The addition helps enumerate the cache and also provides additional
RAS reporting support for configuration with extended linear cache.
(and related fixes for the series).
- An update to cxl_test to support a 3-way capable CFMWS
- A documentation fix to remove unused "mixed mode"
* tag 'cxl-for-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl: (39 commits)
cxl/region: Fix the first aliased address miscalculation
cxl/region: Quiet some dev_warn()s in extended linear cache setup
cxl/Documentation: Remove 'mixed' from sysfs mode doc
cxl: Fix warning from emitting resource_size_t as long long int on 32bit systems
cxl/test: Define a CFMWS capable of a 3 way HB interleave
cxl/mem: Do not return error if CONFIG_CXL_MCE unset
tools/testing/cxl: Set Shutdown State support
cxl/pmem: Export dirty shutdown count via sysfs
cxl/pmem: Rename cxl_dirty_shutdown_state()
cxl/pci: Introduce cxl_gpf_get_dvsec()
cxl/pci: Support Global Persistent Flush (GPF)
cxl: Document missing sysfs files
cxl: Plug typos in ABI doc
cxl/pmem: debug invalid serial number data
cxl/cdat: Remove redundant gp_port initialization
cxl/memdev: Remove unused partition values
cxl/region: Drop goto pattern of construct_region()
cxl/region: Drop goto pattern in cxl_dax_region_alloc()
cxl/core: Use guard() to drop goto pattern of cxl_dpa_alloc()
cxl/core: Use guard() to drop the goto pattern of cxl_dpa_free()
...
|
||
|
Linus Torvalds
|
2cd5769fb0 |
Driver core updates for 6.15-rc1
Here is the big set of driver core updates for 6.15-rc1. Lots of stuff
happened this development cycle, including:
- kernfs scaling changes to make it even faster thanks to rcu
- bin_attribute constify work in many subsystems
- faux bus minor tweaks for the rust bindings
- rust binding updates for driver core, pci, and platform busses,
making more functionaliy available to rust drivers. These are all
due to people actually trying to use the bindings that were in 6.14.
- make Rafael and Danilo full co-maintainers of the driver core
codebase
- other minor fixes and updates.
This has been in linux-next for a while now, with the only reported
issue being some merge conflicts with the rust tree. Depending on which
tree you pull first, you will have conflicts in one of them. The merge
resolution has been in linux-next as an example of what to do, or can be
found here:
https://lore.kernel.org/r/CANiq72n3Xe8JcnEjirDhCwQgvWoE65dddWecXnfdnbrmuah-RQ@mail.gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updatesk from Greg KH:
"Here is the big set of driver core updates for 6.15-rc1. Lots of stuff
happened this development cycle, including:
- kernfs scaling changes to make it even faster thanks to rcu
- bin_attribute constify work in many subsystems
- faux bus minor tweaks for the rust bindings
- rust binding updates for driver core, pci, and platform busses,
making more functionaliy available to rust drivers. These are all
due to people actually trying to use the bindings that were in
6.14.
- make Rafael and Danilo full co-maintainers of the driver core
codebase
- other minor fixes and updates"
* tag 'driver-core-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (52 commits)
rust: platform: require Send for Driver trait implementers
rust: pci: require Send for Driver trait implementers
rust: platform: impl Send + Sync for platform::Device
rust: pci: impl Send + Sync for pci::Device
rust: platform: fix unrestricted &mut platform::Device
rust: pci: fix unrestricted &mut pci::Device
rust: device: implement device context marker
rust: pci: use to_result() in enable_device_mem()
MAINTAINERS: driver core: mark Rafael and Danilo as co-maintainers
rust/kernel/faux: mark Registration methods inline
driver core: faux: only create the device if probe() succeeds
rust/faux: Add missing parent argument to Registration::new()
rust/faux: Drop #[repr(transparent)] from faux::Registration
rust: io: fix devres test with new io accessor functions
rust: io: rename `io::Io` accessors
kernfs: Move dput() outside of the RCU section.
efi: rci2: mark bin_attribute as __ro_after_init
rapidio: constify 'struct bin_attribute'
firmware: qemu_fw_cfg: constify 'struct bin_attribute'
powerpc/perf/hv-24x7: Constify 'struct bin_attribute'
...
|
||
|
Linus Torvalds
|
eb0ece1602 |
- The 6 patch series "Enable strict percpu address space checks" from
Uros Bizjak uses x86 named address space qualifiers to provide compile-time checking of percpu area accesses. This has caused a small amount of fallout - two or three issues were reported. In all cases the calling code was founf to be incorrect. - The 4 patch series "Some cleanup for memcg" from Chen Ridong implements some relatively monir cleanups for the memcontrol code. - The 17 patch series "mm: fixes for device-exclusive entries (hmm)" from David Hildenbrand fixes a boatload of issues which David found then using device-exclusive PTE entries when THP is enabled. More work is needed, but this makes thins better - our own HMM selftests now succeed. - The 2 patch series "mm: zswap: remove z3fold and zbud" from Yosry Ahmed remove the z3fold and zbud implementations. They have been deprecated for half a year and nobody has complained. - The 5 patch series "mm: further simplify VMA merge operation" from Lorenzo Stoakes implements numerous simplifications in this area. No runtime effects are anticipated. - The 4 patch series "mm/madvise: remove redundant mmap_lock operations from process_madvise()" from SeongJae Park rationalizes the locking in the madvise() implementation. Performance gains of 20-25% were observed in one MADV_DONTNEED microbenchmark. - The 12 patch series "Tiny cleanup and improvements about SWAP code" from Baoquan He contains a number of touchups to issues which Baoquan noticed when working on the swap code. - The 2 patch series "mm: kmemleak: Usability improvements" from Catalin Marinas implements a couple of improvements to the kmemleak user-visible output. - The 2 patch series "mm/damon/paddr: fix large folios access and schemes handling" from Usama Arif provides a couple of fixes for DAMON's handling of large folios. - The 3 patch series "mm/damon/core: fix wrong and/or useless damos_walk() behaviors" from SeongJae Park fixes a few issues with the accuracy of kdamond's walking of DAMON regions. - The 3 patch series "expose mapping wrprotect, fix fb_defio use" from Lorenzo Stoakes changes the interaction between framebuffer deferred-io and core MM. No functional changes are anticipated - this is preparatory work for the future removal of page structure fields. - The 4 patch series "mm/damon: add support for hugepage_size DAMOS filter" from Usama Arif adds a DAMOS filter which permits the filtering by huge page sizes. - The 4 patch series "mm: permit guard regions for file-backed/shmem mappings" from Lorenzo Stoakes extends the guard region feature from its present "anon mappings only" state. The feature now covers shmem and file-backed mappings. - The 4 patch series "mm: batched unmap lazyfree large folios during reclamation" from Barry Song cleans up and speeds up the unmapping for pte-mapped large folios. - The 18 patch series "reimplement per-vma lock as a refcount" from Suren Baghdasaryan puts the vm_lock back into the vma. Our reasons for pulling it out were largely bogus and that change made the code more messy. This patchset provides small (0-10%) improvements on one microbenchmark. - The 5 patch series "Docs/mm/damon: misc DAMOS filters documentation fixes and improves" from SeongJae Park does some maintenance work on the DAMON docs. - The 27 patch series "hugetlb/CMA improvements for large systems" from Frank van der Linden addresses a pile of issues which have been observed when using CMA on large machines. - The 2 patch series "mm/damon: introduce DAMOS filter type for unmapped pages" from SeongJae Park enables users of DMAON/DAMOS to filter my the page's mapped/unmapped status. - The 19 patch series "zsmalloc/zram: there be preemption" from Sergey Senozhatsky teaches zram to run its compression and decompression operations preemptibly. - The 12 patch series "selftests/mm: Some cleanups from trying to run them" from Brendan Jackman fixes a pile of unrelated issues which Brendan encountered while runnimg our selftests. - The 2 patch series "fs/proc/task_mmu: add guard region bit to pagemap" from Lorenzo Stoakes permits userspace to use /proc/pid/pagemap to determine whether a particular page is a guard page. - The 7 patch series "mm, swap: remove swap slot cache" from Kairui Song removes the swap slot cache from the allocation path - it simply wasn't being effective. - The 5 patch series "mm: cleanups for device-exclusive entries (hmm)" from David Hildenbrand implements a number of unrelated cleanups in this code. - The 5 patch series "mm: Rework generic PTDUMP configs" from Anshuman Khandual implements a number of preparatoty cleanups to the GENERIC_PTDUMP Kconfig logic. - The 8 patch series "mm/damon: auto-tune aggregation interval" from SeongJae Park implements a feedback-driven automatic tuning feature for DAMON's aggregation interval tuning. - The 5 patch series "Fix lazy mmu mode" from Ryan Roberts fixes some issues in powerpc, sparc and x86 lazy MMU implementations. Ryan did this in preparation for implementing lazy mmu mode for arm64 to optimize vmalloc. - The 2 patch series "mm/page_alloc: Some clarifications for migratetype fallback" from Brendan Jackman reworks some commentary to make the code easier to follow. - The 3 patch series "page_counter cleanup and size reduction" from Shakeel Butt cleans up the page_counter code and fixes a size increase which we accidentally added late last year. - The 3 patch series "Add a command line option that enables control of how many threads should be used to allocate huge pages" from Thomas Prescher does that. It allows the careful operator to significantly reduce boot time by tuning the parallalization of huge page initialization. - The 3 patch series "Fix calculations in trace_balance_dirty_pages() for cgwb" from Tang Yizhou fixes the tracing output from the dirty page balancing code. - The 9 patch series "mm/damon: make allow filters after reject filters useful and intuitive" from SeongJae Park improves the handling of allow and reject filters. Behaviour is made more consistent and the documention is updated accordingly. - The 5 patch series "Switch zswap to object read/write APIs" from Yosry Ahmed updates zswap to the new object read/write APIs and thus permits the removal of some legacy code from zpool and zsmalloc. - The 6 patch series "Some trivial cleanups for shmem" from Baolin Wang does as it claims. - The 20 patch series "fs/dax: Fix ZONE_DEVICE page reference counts" from Alistair Popple regularizes the weird ZONE_DEVICE page refcount handling in DAX, permittig the removal of a number of special-case checks. - The 4 patch series "refactor mremap and fix bug" from Lorenzo Stoakes is a preparatoty refactoring and cleanup of the mremap() code. - The 20 patch series "mm: MM owner tracking for large folios (!hugetlb) + CONFIG_NO_PAGE_MAPCOUNT" from David Hildenbrand reworks the manner in which we determine whether a large folio is known to be mapped exclusively into a single MM. - The 8 patch series "mm/damon: add sysfs dirs for managing DAMOS filters based on handling layers" from SeongJae Park adds a couple of new sysfs directories to ease the management of DAMON/DAMOS filters. - The 13 patch series "arch, mm: reduce code duplication in mem_init()" from Mike Rapoport consolidates many per-arch implementations of mem_init() into code generic code, where that is practical. - The 13 patch series "mm/damon/sysfs: commit parameters online via damon_call()" from SeongJae Park continues the cleaning up of sysfs access to DAMON internal data. - The 3 patch series "mm: page_ext: Introduce new iteration API" from Luiz Capitulino reworks the page_ext initialization to fix a boot-time crash which was observed with an unusual combination of compile and cmdline options. - The 8 patch series "Buddy allocator like (or non-uniform) folio split" from Zi Yan reworks the code to split a folio into smaller folios. The main benefit is lessened memory consumption: fewer post-split folios are generated. - The 2 patch series "Minimize xa_node allocation during xarry split" from Zi Yan reduces the number of xarray xa_nodes which are generated during an xarray split. - The 2 patch series "drivers/base/memory: Two cleanups" from Gavin Shan performs some maintenance work on the drivers/base/memory code. - The 3 patch series "Add tracepoints for lowmem reserves, watermarks and totalreserve_pages" from Martin Liu adds some more tracepoints to the page allocator code. - The 4 patch series "mm/madvise: cleanup requests validations and classifications" from SeongJae Park cleans up some warts which SeongJae observed during his earlier madvise work. - The 3 patch series "mm/hwpoison: Fix regressions in memory failure handling" from Shuai Xue addresses two quite serious regressions which Shuai has observed in the memory-failure implementation. - The 5 patch series "mm: reliable huge page allocator" from Johannes Weiner makes huge page allocations cheaper and more reliable by reducing fragmentation. - The 5 patch series "Minor memcg cleanups & prep for memdescs" from Matthew Wilcox is preparatory work for the future implementation of memdescs. - The 4 patch series "track memory used by balloon drivers" from Nico Pache introduces a way to track memory used by our various balloon drivers. - The 2 patch series "mm/damon: introduce DAMOS filter type for active pages" from Nhat Pham permits users to filter for active/inactive pages, separately for file and anon pages. - The 2 patch series "Adding Proactive Memory Reclaim Statistics" from Hao Jia separates the proactive reclaim statistics from the direct reclaim statistics. - The 2 patch series "mm/vmscan: don't try to reclaim hwpoison folio" from Jinjiang Tu fixes our handling of hwpoisoned pages within the reclaim code. -----BEGIN PGP SIGNATURE----- iHQEABYKAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCZ+nZaAAKCRDdBJ7gKXxA jsOWAPiP4r7CJHMZRK4eyJOkvS1a1r+TsIarrFZtjwvf/GIfAQCEG+JDxVfUaUSF Ee93qSSLR1BkNdDw+931Pu0mXfbnBw== =Pn2K -----END PGP SIGNATURE----- Merge tag 'mm-stable-2025-03-30-16-52' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull MM updates from Andrew Morton: - The series "Enable strict percpu address space checks" from Uros Bizjak uses x86 named address space qualifiers to provide compile-time checking of percpu area accesses. This has caused a small amount of fallout - two or three issues were reported. In all cases the calling code was found to be incorrect. - The series "Some cleanup for memcg" from Chen Ridong implements some relatively monir cleanups for the memcontrol code. - The series "mm: fixes for device-exclusive entries (hmm)" from David Hildenbrand fixes a boatload of issues which David found then using device-exclusive PTE entries when THP is enabled. More work is needed, but this makes thins better - our own HMM selftests now succeed. - The series "mm: zswap: remove z3fold and zbud" from Yosry Ahmed remove the z3fold and zbud implementations. They have been deprecated for half a year and nobody has complained. - The series "mm: further simplify VMA merge operation" from Lorenzo Stoakes implements numerous simplifications in this area. No runtime effects are anticipated. - The series "mm/madvise: remove redundant mmap_lock operations from process_madvise()" from SeongJae Park rationalizes the locking in the madvise() implementation. Performance gains of 20-25% were observed in one MADV_DONTNEED microbenchmark. - The series "Tiny cleanup and improvements about SWAP code" from Baoquan He contains a number of touchups to issues which Baoquan noticed when working on the swap code. - The series "mm: kmemleak: Usability improvements" from Catalin Marinas implements a couple of improvements to the kmemleak user-visible output. - The series "mm/damon/paddr: fix large folios access and schemes handling" from Usama Arif provides a couple of fixes for DAMON's handling of large folios. - The series "mm/damon/core: fix wrong and/or useless damos_walk() behaviors" from SeongJae Park fixes a few issues with the accuracy of kdamond's walking of DAMON regions. - The series "expose mapping wrprotect, fix fb_defio use" from Lorenzo Stoakes changes the interaction between framebuffer deferred-io and core MM. No functional changes are anticipated - this is preparatory work for the future removal of page structure fields. - The series "mm/damon: add support for hugepage_size DAMOS filter" from Usama Arif adds a DAMOS filter which permits the filtering by huge page sizes. - The series "mm: permit guard regions for file-backed/shmem mappings" from Lorenzo Stoakes extends the guard region feature from its present "anon mappings only" state. The feature now covers shmem and file-backed mappings. - The series "mm: batched unmap lazyfree large folios during reclamation" from Barry Song cleans up and speeds up the unmapping for pte-mapped large folios. - The series "reimplement per-vma lock as a refcount" from Suren Baghdasaryan puts the vm_lock back into the vma. Our reasons for pulling it out were largely bogus and that change made the code more messy. This patchset provides small (0-10%) improvements on one microbenchmark. - The series "Docs/mm/damon: misc DAMOS filters documentation fixes and improves" from SeongJae Park does some maintenance work on the DAMON docs. - The series "hugetlb/CMA improvements for large systems" from Frank van der Linden addresses a pile of issues which have been observed when using CMA on large machines. - The series "mm/damon: introduce DAMOS filter type for unmapped pages" from SeongJae Park enables users of DMAON/DAMOS to filter my the page's mapped/unmapped status. - The series "zsmalloc/zram: there be preemption" from Sergey Senozhatsky teaches zram to run its compression and decompression operations preemptibly. - The series "selftests/mm: Some cleanups from trying to run them" from Brendan Jackman fixes a pile of unrelated issues which Brendan encountered while runnimg our selftests. - The series "fs/proc/task_mmu: add guard region bit to pagemap" from Lorenzo Stoakes permits userspace to use /proc/pid/pagemap to determine whether a particular page is a guard page. - The series "mm, swap: remove swap slot cache" from Kairui Song removes the swap slot cache from the allocation path - it simply wasn't being effective. - The series "mm: cleanups for device-exclusive entries (hmm)" from David Hildenbrand implements a number of unrelated cleanups in this code. - The series "mm: Rework generic PTDUMP configs" from Anshuman Khandual implements a number of preparatoty cleanups to the GENERIC_PTDUMP Kconfig logic. - The series "mm/damon: auto-tune aggregation interval" from SeongJae Park implements a feedback-driven automatic tuning feature for DAMON's aggregation interval tuning. - The series "Fix lazy mmu mode" from Ryan Roberts fixes some issues in powerpc, sparc and x86 lazy MMU implementations. Ryan did this in preparation for implementing lazy mmu mode for arm64 to optimize vmalloc. - The series "mm/page_alloc: Some clarifications for migratetype fallback" from Brendan Jackman reworks some commentary to make the code easier to follow. - The series "page_counter cleanup and size reduction" from Shakeel Butt cleans up the page_counter code and fixes a size increase which we accidentally added late last year. - The series "Add a command line option that enables control of how many threads should be used to allocate huge pages" from Thomas Prescher does that. It allows the careful operator to significantly reduce boot time by tuning the parallalization of huge page initialization. - The series "Fix calculations in trace_balance_dirty_pages() for cgwb" from Tang Yizhou fixes the tracing output from the dirty page balancing code. - The series "mm/damon: make allow filters after reject filters useful and intuitive" from SeongJae Park improves the handling of allow and reject filters. Behaviour is made more consistent and the documention is updated accordingly. - The series "Switch zswap to object read/write APIs" from Yosry Ahmed updates zswap to the new object read/write APIs and thus permits the removal of some legacy code from zpool and zsmalloc. - The series "Some trivial cleanups for shmem" from Baolin Wang does as it claims. - The series "fs/dax: Fix ZONE_DEVICE page reference counts" from Alistair Popple regularizes the weird ZONE_DEVICE page refcount handling in DAX, permittig the removal of a number of special-case checks. - The series "refactor mremap and fix bug" from Lorenzo Stoakes is a preparatoty refactoring and cleanup of the mremap() code. - The series "mm: MM owner tracking for large folios (!hugetlb) + CONFIG_NO_PAGE_MAPCOUNT" from David Hildenbrand reworks the manner in which we determine whether a large folio is known to be mapped exclusively into a single MM. - The series "mm/damon: add sysfs dirs for managing DAMOS filters based on handling layers" from SeongJae Park adds a couple of new sysfs directories to ease the management of DAMON/DAMOS filters. - The series "arch, mm: reduce code duplication in mem_init()" from Mike Rapoport consolidates many per-arch implementations of mem_init() into code generic code, where that is practical. - The series "mm/damon/sysfs: commit parameters online via damon_call()" from SeongJae Park continues the cleaning up of sysfs access to DAMON internal data. - The series "mm: page_ext: Introduce new iteration API" from Luiz Capitulino reworks the page_ext initialization to fix a boot-time crash which was observed with an unusual combination of compile and cmdline options. - The series "Buddy allocator like (or non-uniform) folio split" from Zi Yan reworks the code to split a folio into smaller folios. The main benefit is lessened memory consumption: fewer post-split folios are generated. - The series "Minimize xa_node allocation during xarry split" from Zi Yan reduces the number of xarray xa_nodes which are generated during an xarray split. - The series "drivers/base/memory: Two cleanups" from Gavin Shan performs some maintenance work on the drivers/base/memory code. - The series "Add tracepoints for lowmem reserves, watermarks and totalreserve_pages" from Martin Liu adds some more tracepoints to the page allocator code. - The series "mm/madvise: cleanup requests validations and classifications" from SeongJae Park cleans up some warts which SeongJae observed during his earlier madvise work. - The series "mm/hwpoison: Fix regressions in memory failure handling" from Shuai Xue addresses two quite serious regressions which Shuai has observed in the memory-failure implementation. - The series "mm: reliable huge page allocator" from Johannes Weiner makes huge page allocations cheaper and more reliable by reducing fragmentation. - The series "Minor memcg cleanups & prep for memdescs" from Matthew Wilcox is preparatory work for the future implementation of memdescs. - The series "track memory used by balloon drivers" from Nico Pache introduces a way to track memory used by our various balloon drivers. - The series "mm/damon: introduce DAMOS filter type for active pages" from Nhat Pham permits users to filter for active/inactive pages, separately for file and anon pages. - The series "Adding Proactive Memory Reclaim Statistics" from Hao Jia separates the proactive reclaim statistics from the direct reclaim statistics. - The series "mm/vmscan: don't try to reclaim hwpoison folio" from Jinjiang Tu fixes our handling of hwpoisoned pages within the reclaim code. * tag 'mm-stable-2025-03-30-16-52' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (431 commits) mm/page_alloc: remove unnecessary __maybe_unused in order_to_pindex() x86/mm: restore early initialization of high_memory for 32-bits mm/vmscan: don't try to reclaim hwpoison folio mm/hwpoison: introduce folio_contain_hwpoisoned_page() helper cgroup: docs: add pswpin and pswpout items in cgroup v2 doc mm: vmscan: split proactive reclaim statistics from direct reclaim statistics selftests/mm: speed up split_huge_page_test selftests/mm: uffd-unit-tests support for hugepages > 2M docs/mm/damon/design: document active DAMOS filter type mm/damon: implement a new DAMOS filter type for active pages fs/dax: don't disassociate zero page entries MM documentation: add "Unaccepted" meminfo entry selftests/mm: add commentary about 9pfs bugs fork: use __vmalloc_node() for stack allocation docs/mm: Physical Memory: Populate the "Zones" section xen: balloon: update the NR_BALLOON_PAGES state hv_balloon: update the NR_BALLOON_PAGES state balloon_compaction: update the NR_BALLOON_PAGES state meminfo: add a per node counter for balloon drivers mm: remove references to folio in __memcg_kmem_uncharge_page() ... |
||
|
Linus Torvalds
|
054b7477e3 |
regmap: Updates for v6.15
Only a couple of small patches this release, one refactoring struct regmap to pack it more efficiently and another which makes our way of setting all bits consistent in the regmap-irq code. -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAmfl0I4ACgkQJNaLcl1U h9Ddlgf/bwUrSlIstkLQi3JqIT6rlfhtE34WyDlaI9fmDwzoUn3tS9HQt2Yxbyqz e+V+HrhsQrGUTrcyHMYywo70b/Ed+R2ck2S8IUV2+RVJ1rEcCUTjr14iyPo8YRrE 4fJClRxqiPmsDhyNaW3/3gaoKczwaWJym9bJrGLunvy2bm//c2yBq2ZetzZYYady qZnPhrT+jsDvcTPS8MLo6u/zdx1hFOKdKzj0+xlzmSgoXwIaU79s+VglOgVpa8Qf AilGHXiNy1QvbbaBJwm2UJEQSuyPaV2/ID3ydtGzgDuoSOOESxS+lrlv0oybDZ09 PQ4QD/qX/86XRDRb9gqZECwIndoQ8w== =G7Ap -----END PGP SIGNATURE----- Merge tag 'regmap-v6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap Pull regmap updates from Mark Brown: "Only a couple of small patches this release, one refactoring struct regmap to pack it more efficiently and another which makes our way of setting all bits consistent in the regmap-irq code" * tag 'regmap-v6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap: regmap: irq: Use one way of setting all bits in the register regmap: Reorder 'struct regmap' |
||
|
Linus Torvalds
|
7d06015d93 |
pci-v6.15-changes
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Merge tag 'pci-v6.15-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci
Pull pci updates from Bjorn Helgaas:
"Enumeration:
- Enable Configuration RRS SV, which makes device readiness visible,
early instead of during child bus scanning (Bjorn Helgaas)
- Log debug messages about reset methods being used (Bjorn Helgaas)
- Avoid reset when it has been disabled via sysfs (Nishanth
Aravamudan)
- Add common pci-ep-bus.yaml schema for exporting several peripherals
of a single PCI function via devicetree (Andrea della Porta)
- Create DT nodes for PCI host bridges to enable loading device tree
overlays to create platform devices for PCI devices that have
several features that require multiple drivers (Herve Codina)
Resource management:
- Enlarge devres table[] to accommodate bridge windows, ROM, IOV
BARs, etc., and validate BAR index in devres interfaces (Philipp
Stanner)
- Fix typo that repeatedly distributed resources to a bridge instead
of iterating over subordinate bridges, which resulted in too little
space to assign some BARs (Kai-Heng Feng)
- Relax bridge window tail sizing for optional resources, e.g., IOV
BARs, to avoid failures when removing and re-adding devices (Ilpo
Järvinen)
- Allow drivers to enable devices even if we haven't assigned
optional IOV resources to them (Ilpo Järvinen)
- Rework handling of optional resources (IOV BARs, ROMs) to reduce
failures if we can't allocate them (Ilpo Järvinen)
- Fix a NULL dereference in the SR-IOV VF creation error path (Shay
Drory)
- Fix s390 mmio_read/write syscalls, which didn't cause page faults
in some cases, which broke vfio-pci lazy mapping on first access
(Niklas Schnelle)
- Add pdev->non_mappable_bars to replace CONFIG_VFIO_PCI_MMAP, which
was disabled only for s390 (Niklas Schnelle)
- Support mmap of PCI resources on s390 except for ISM devices
(Niklas Schnelle)
ASPM:
- Delay pcie_link_state deallocation to avoid dangling pointers that
cause invalid references during hot-unplug (Daniel Stodden)
Power management:
- Allow PCI bridges to go to D3Hot when suspending on all non-x86
systems (Manivannan Sadhasivam)
Power control:
- Create pwrctrl devices in pci_scan_device() to make it more
symmetric with pci_pwrctrl_unregister() and make pwrctrl devices
for PCI bridges possible (Manivannan Sadhasivam)
- Unregister pwrctrl devices in pci_destroy_dev() so DOE, ASPM, etc.
can still access devices after pci_stop_dev() (Manivannan
Sadhasivam)
- If there's a pwrctrl device for a PCI device, skip scanning it
because the pwrctrl core will rescan the bus after the device is
powered on (Manivannan Sadhasivam)
- Add a pwrctrl driver for PCI slots based on voltage regulators
described via devicetree (Manivannan Sadhasivam)
Bandwidth control:
- Add set_pcie_speed.sh to TEST_PROGS to fix issue when executing the
set_pcie_cooling_state.sh test case (Yi Lai)
- Avoid a NULL pointer dereference when we run out of bus numbers to
assign for a bridge secondary bus (Lukas Wunner)
Hotplug:
- Drop superfluous pci_hotplug_slot_list, try_module_get() calls, and
NULL pointer checks (Lukas Wunner)
- Drop shpchp module init/exit logging, replace shpchp dbg() with
ctrl_dbg(), and remove unused dbg(), err(), info(), warn() wrappers
(Ilpo Järvinen)
- Drop 'shpchp_debug' module parameter in favor of standard dynamic
debugging (Ilpo Järvinen)
- Drop unused cpcihp .get_power(), .set_power() function pointers
(Guilherme Giacomo Simoes)
- Disable hotplug interrupts in portdrv only when pciehp is not
enabled to avoid issuing two hotplug commands too close together
(Feng Tang)
- Skip pciehp 'device replaced' check if the device has been removed
to address a deadlock when resuming after a device was removed
during system sleep (Lukas Wunner)
- Don't enable pciehp hotplug interupt when resuming in poll mode
(Ilpo Järvinen)
Virtualization:
- Fix bugs in 'pci=config_acs=' kernel command line parameter (Tushar
Dave)
DOE:
- Expose supported DOE features via sysfs (Alistair Francis)
- Allow DOE support to be enabled even if CXL isn't enabled (Alistair
Francis)
Endpoint framework:
- Convert PCI device data so pci-epf-test works correctly on
big-endian endpoint systems (Niklas Cassel)
- Add BAR_RESIZABLE type to endpoint framework and add DWC core
support for EPF drivers to set BAR_RESIZABLE type and size (Niklas
Cassel)
- Fix pci-epf-test double free that causes an oops if the host
reboots and PERST# deassertion restarts endpoint BAR allocation
(Christian Bruel)
- Fix endpoint BAR testing so tests can skip disabled BARs instead of
reporting them as failures (Niklas Cassel)
- Widen endpoint test BAR size variable to accommodate BARs larger
than INT_MAX (Niklas Cassel)
- Remove unused tools 'pci' build target left over after moving tests
to tools/testing/selftests/pci_endpoint (Jianfeng Liu)
Altera PCIe controller driver:
- Add DT binding and driver support for Agilex family (P-Tile,
F-Tile, R-Tile) (Matthew Gerlach and D M, Sharath Kumar)
AMD MDB PCIe controller driver:
- Add DT binding and driver for AMD MDB (Multimedia DMA Bridge)
(Thippeswamy Havalige)
Broadcom STB PCIe controller driver:
- Add BCM2712 MSI-X DT binding and interrupt controller drivers and
add softdep on irq_bcm2712_mip driver to ensure that it is loaded
first (Stanimir Varbanov)
- Expand inbound window map to 64GB so it can accommodate BCM2712
(Stanimir Varbanov)
- Add BCM2712 support and DT updates (Stanimir Varbanov)
- Apply link speed restriction before bringing link up, not after
(Jim Quinlan)
- Update Max Link Speed in Link Capabilities via the internal
writable register, not the read-only config register (Jim Quinlan)
- Handle regulator_bulk_get() error to avoid panic when we call
regulator_bulk_free() later (Jim Quinlan)
- Disable regulators only when removing the bus immediately below a
Root Port because we don't support regulators deeper in the
hierarchy (Jim Quinlan)
- Make const read-only arrays static (Colin Ian King)
Cadence PCIe endpoint driver:
- Correct MSG TLP generation so endpoints can generate INTx messages
(Hans Zhang)
Freescale i.MX6 PCIe controller driver:
- Identify the second controller on i.MX8MQ based on devicetree
'linux,pci-domain' instead of DBI 'reg' address (Richard Zhu)
- Remove imx_pcie_cpu_addr_fixup() since dwc core can now derive the
ATU input address (using parent_bus_offset) from devicetree (Frank
Li)
Freescale Layerscape PCIe controller driver:
- Drop deprecated 'num-ib-windows' and 'num-ob-windows' and
unnecessary 'status' from example (Krzysztof Kozlowski)
- Correct the syscon_regmap_lookup_by_phandle_args("fsl,pcie-scfg")
arg_count to fix probe failure on LS1043A (Ioana Ciornei)
HiSilicon STB PCIe controller driver:
- Call phy_exit() to clean up if histb_pcie_probe() fails (Christophe
JAILLET)
Intel Gateway PCIe controller driver:
- Remove intel_pcie_cpu_addr() since dwc core can now derive the ATU
input address (using parent_bus_offset) from devicetree (Frank Li)
Intel VMD host bridge driver:
- Convert vmd_dev.cfg_lock from spinlock_t to raw_spinlock_t so
pci_ops.read() will never sleep, even on PREEMPT_RT where
spinlock_t becomes a sleepable lock, to avoid calling a sleeping
function from invalid context (Ryo Takakura)
MediaTek PCIe Gen3 controller driver:
- Remove leftover mac_reset assert for Airoha EN7581 SoC (Lorenzo
Bianconi)
- Add EN7581 PBUS controller 'mediatek,pbus-csr' DT property and
program host bridge memory aperture to this syscon node (Lorenzo
Bianconi)
Qualcomm PCIe controller driver:
- Add qcom,pcie-ipq5332 binding (Varadarajan Narayanan)
- Add qcom i.MX8QM and i.MX8QXP/DXP optional DMA interrupt (Alexander
Stein)
- Add optional dma-coherent DT property for Qualcomm SA8775P (Dmitry
Baryshkov)
- Make DT iommu property required for SA8775P and prohibited for
SDX55 (Dmitry Baryshkov)
- Add DT IOMMU and DMA-related properties for Qualcomm SM8450 (Dmitry
Baryshkov)
- Add endpoint DT properties for SAR2130P and enable endpoint mode in
driver (Dmitry Baryshkov)
- Describe endpoint BAR0 and BAR2 as 64-bit only and BAR1 and BAR3 as
RESERVED (Manivannan Sadhasivam)
Rockchip DesignWare PCIe controller driver:
- Describe rk3568 and rk3588 BARs as Resizable, not Fixed (Niklas
Cassel)
Synopsys DesignWare PCIe controller driver:
- Add debugfs-based Silicon Debug, Error Injection, Statistical
Counter support for DWC (Shradha Todi)
- Add debugfs property to expose LTSSM status of DWC PCIe link (Hans
Zhang)
- Add Rockchip support for DWC debugfs features (Niklas Cassel)
- Add dw_pcie_parent_bus_offset() to look up the parent bus address
of a specified 'reg' property and return the offset from the CPU
physical address (Frank Li)
- Use dw_pcie_parent_bus_offset() to derive CPU -> ATU addr offset
via 'reg[config]' for host controllers and 'reg[addr_space]' for
endpoint controllers (Frank Li)
- Apply struct dw_pcie.parent_bus_offset in ATU users to remove use
of .cpu_addr_fixup() when programming ATU (Frank Li)
TI J721E PCIe driver:
- Correct the 'link down' interrupt bit for J784S4 (Siddharth
Vadapalli)
TI Keystone PCIe controller driver:
- Describe AM65x BARs 2 and 5 as Resizable (not Fixed) and reduce
alignment requirement from 1MB to 64KB (Niklas Cassel)
Xilinx Versal CPM PCIe controller driver:
- Free IRQ domain in probe error path to avoid leaking it
(Thippeswamy Havalige)
- Add DT .compatible "xlnx,versal-cpm5nc-host" and driver support for
Versal Net CPM5NC Root Port controller (Thippeswamy Havalige)
- Add driver support for CPM5_HOST1 (Thippeswamy Havalige)
Miscellaneous:
- Convert fsl,mpc83xx-pcie binding to YAML (J. Neuschäfer)
- Use for_each_available_child_of_node_scoped() to simplify apple,
kirin, mediatek, mt7621, tegra drivers (Zhang Zekun)"
* tag 'pci-v6.15-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci: (197 commits)
PCI: layerscape: Fix arg_count to syscon_regmap_lookup_by_phandle_args()
PCI: j721e: Fix the value of .linkdown_irq_regfield for J784S4
misc: pci_endpoint_test: Add support for PCITEST_IRQ_TYPE_AUTO
PCI: endpoint: pci-epf-test: Expose supported IRQ types in CAPS register
PCI: dw-rockchip: Endpoint mode cannot raise INTx interrupts
PCI: endpoint: Add intx_capable to epc_features struct
dt-bindings: PCI: Add common schema for devices accessible through PCI BARs
PCI: intel-gw: Remove intel_pcie_cpu_addr()
PCI: imx6: Remove imx_pcie_cpu_addr_fixup()
PCI: dwc: Use parent_bus_offset to remove need for .cpu_addr_fixup()
PCI: dwc: ep: Ensure proper iteration over outbound map windows
PCI: dwc: ep: Use devicetree 'reg[addr_space]' to derive CPU -> ATU addr offset
PCI: dwc: ep: Consolidate devicetree handling in dw_pcie_ep_get_resources()
PCI: dwc: ep: Call epc_create() early in dw_pcie_ep_init()
PCI: dwc: Use devicetree 'reg[config]' to derive CPU -> ATU addr offset
PCI: dwc: Add dw_pcie_parent_bus_offset() checking and debug
PCI: dwc: Add dw_pcie_parent_bus_offset()
PCI/bwctrl: Fix NULL pointer dereference on bus number exhaustion
PCI: xilinx-cpm: Add cpm_csr register mapping for CPM5_HOST1 variant
PCI: brcmstb: Make const read-only arrays static
...
|
||
|
Linus Torvalds
|
0c86b42439 |
drm for 6.15-rc1
uapi:
- add mediatek tiled fourcc
- add support for notifying userspace on device wedged
new driver:
- appletbdrm: support for Apple Touchbar displays on m1/m2
- nova-core: skeleton rust driver to develop nova inside off
firmware:
- add some rust firmware pieces
rust:
- add 'LocalModule' type alias
component:
- add helper to query bound status
fbdev:
- fbtft: remove access to page->index
media:
- cec: tda998x: import driver from drm
dma-buf:
- add fast path for single fence merging
tests:
- fix lockdep warnings
atomic:
- allow full modeset on connector changes
- clarify semantics of allow_modeset and drm_atomic_helper_check
- async-flip: support on arbitary planes
- writeback: fix UAF
- Document atomic-state history
format-helper:
- support ARGB8888 to ARGB4444 conversions
buddy:
- fix multi-root cleanup
ci:
- update IGT
dp:
- support extended wake timeout
- mst: fix RAD to string conversion
- increase DPCD eDP control CAP size to 5 bytes
- add DPCD eDP v1.5 definition
- add helpers for LTTPR transparent mode
panic:
- encode QR code according to Fido 2.2
scheduler:
- add parameter struct for init
- improve job peek/pop operations
- optimise drm_sched_job struct layout
ttm:
- refactor pool allocation
- add helpers for TTM shrinker
panel-orientation:
- add a bunch of new quirks
panel:
- convert panels to multi-style functions
- edp: Add support for B140UAN04.4, BOE NV140FHM-NZ, CSW MNB601LS1-3,
LG LP079QX1-SP0V, MNE007QS3-7, STA 116QHD024002, Starry 116KHD024006,
Lenovo T14s Gen6 Snapdragon
- himax-hx83102: Add support for CSOT PNA957QT1-1, Kingdisplay
kd110n11-51ie, Starry 2082109qfh040022-50e
- visionox-r66451: use multi-style MIPI-DSI functions
- raydium-rm67200: Add driver for Raydium RM67200
- simple: Add support for BOE AV123Z7M-N17, BOE AV123Z7M-N17
- sony-td4353-jdi: Use MIPI-DSI multi-func interface
- summit: Add driver for Apple Summit display panel
- visionox-rm692e5: Add driver for Visionox RM692E5
bridge:
- pass full atomic state to various callbacks
- adv7511: Report correct capabilities
- it6505: Fix HDCP V compare
- snd65dsi86: fix device IDs
- nwl-dsi: set bridge type
- ti-sn65si83: add error recovery and set bridge type
- synopsys: add HDMI audio support
xe:
- support device-wedged event
- add mmap support for PCI memory barrier
- perf pmu integration and expose per-engien activity
- add EU stall sampling support
- GPU SVM and Xe SVM implementation
- use TTM shrinker
- add survivability mode to allow the driver to do
firmware updates in critical failure states
- PXP HWDRM support for MTL and LNL
- expose package/vram temps over hwmon
- enable DP tunneling
- drop mmio_ext abstraction
- Reject BO evcition if BO is bound to current VM
- Xe suballocator improvements
- re-use display vmas when possible
- add GuC Buffer Cache abstraction
- PCI ID update for Panther Lake and Battlemage
- Enable SRIOV for Panther Lake
- Refactor VRAM manager location
i915:
- enable extends wake timeout
- support device-wedged event
- Enable DP 128b/132b SST DSC
- FBC dirty rectangle support for display version 30+
- convert i915/xe to drm client setup
- Compute HDMI PLLS for rates not in fixed tables
- Allow DSB usage when PSR is enabled on LNL+
- Enable panel replay without full modeset
- Enable async flips with compressed buffers on ICL+
- support luminance based brightness via DPCD for eDP
- enable VRR enable/disable without full modeset
- allow GuC SLPC default strategies on MTL+ for performance
- lots of display refactoring in move to struct intel_display
amdgpu:
- add device wedged event
- support async page flips on overlay planes
- enable broadcast RGB drm property
- add info ioctl for virt mode
- OEM i2c support for RGB lights
- GC 11.5.2 + 11.5.3 support
- SDMA 6.1.3 support
- NBIO 7.9.1 + 7.11.2 support
- MMHUB 1.8.1 + 3.3.2 support
- DCN 3.6.0 support
- Add dynamic workload profile switching for GC 10-12
- support larger VBIOS sizes
- Mark gttsize parameters as deprecated
- Initial JPEG queue resset support
amdkfd:
- add KFD per process flags for setting precision
- sync pasid values between KGD and KFD
- improve GTT/VRAM handling for APUs
- fix user queue validation on GC7/8
- SDMA queue reset support
raedeon:
- rs400 hyperz fix
i2c:
- td998x: drop platform_data, split driver into media and bridge
ast:
- transmitter chip detection refactoring
- vbios display mode refactoring
- astdp: fix connection status and filter unsupported modes
- cursor handling refactoring
imagination:
- check job dependencies with sched helper
ivpu:
- improve command queue handling
- use workqueue for IRQ handling
- add support HW fault injection
- locking fixes
mgag200:
- add support for G200eH5
msm:
- dpu: add concurrent writeback support for DPU 10.x+
- use LTTPR helpers
- GPU:
- Fix obscure GMU suspend failure
- Expose syncobj timeline support
- Extend GPU devcoredump with pagetable info
- a623 support
- Fix a6xx gen1/gen2 indexed-register blocks in gpu snapshot / devcoredump
- Display:
- Add cpu-cfg interconnect paths on SM8560 and SM8650
- Introduce KMS OMMU fault handler, causing devcoredump snapshot
- Fixed error pointer dereference in msm_kms_init_aspace()
- DPU:
- Fix mode_changing handling
- Add writeback support on SM6150 (QCS615)
- Fix DSC programming in 1:1:1 topology
- Reworked hardware resource allocation, moving it to the CRTC code
- Enabled support for Concurrent WriteBack (CWB) on SM8650
- Enabled CDM blocks on all relevant platforms
- Reworked debugfs interface for BW/clocks debugging
- Clear perf params before calculating bw
- Support YUV formats on writeback
- Fixed double inclusion
- Fixed writeback in YUV formats when using cloned output, Dropped
wb2_formats_rgb
- Corrected dpu_crtc_check_mode_changed and struct dpu_encoder_virt
kerneldocs
- Fixed uninitialized variable in dpu_crtc_kickoff_clone_mode()
- DSI:
- DSC-related fixes
- Rework clock programming
- DSI PHY:
- Fix 7nm (and lower) PHY programming
- Add proper DT schema definitions for DSI PHY clocks
- HDMI:
- Rework the driver, enabling the use of the HDMI Connector framework
- Bindings:
- Added eDP PHY on SA8775P
nouveau:
- move drm_slave_encoder interface into driver
- nvkm: refactor GSP RPC
- use LTTPR helpers
mediatek:
- HDMI fixup and refinement
- add MT8188 dsc compatible
- MT8365 SoC support
panthor:
- Expose sizes of intenral BOs via fdinfo
- Fix race between reset and suspend
- Improve locking
qaic:
- Add support for AIC200
renesas:
- Fix limits in DT bindings
rockchip:
- support rk3562-mali
- rk3576: Add HDMI support
- vop2: Add new display modes on RK3588 HDMI0 up to 4K
- Don't change HDMI reference clock rate
- Fix DT bindings
- analogix_dp: add eDP support
- fix shutodnw
solomon:
- Set SPI device table to silence warnings
- Fix pixel and scanline encoding
v3d:
- handle clock
vc4:
- Use drm_exec
- Use dma-resv for wait-BO ioctl
- Remove seqno infrastructure
virtgpu:
- Support partial mappings of GEM objects
- Reserve VGA resources during initialization
- Fix UAF in virtgpu_dma_buf_free_obj()
- Add panic support
vkms:
- Switch to a managed modesetting pipeline
- Add support for ARGB8888
- fix UAf
xlnx:
- Set correct DMA segment size
- use mutex guards
- Fix error handling
- Fix docs
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Merge tag 'drm-next-2025-03-28' of https://gitlab.freedesktop.org/drm/kernel
Pull drm updates from Dave Airlie:
"Outside of drm there are some rust patches from Danilo who maintains
that area in here, and some pieces for drm header check tests.
The major things in here are a new driver supporting the touchbar
displays on M1/M2, the nova-core stub driver which is just the vehicle
for adding rust abstractions and start developing a real driver inside
of.
xe adds support for SVM with a non-driver specific SVM core
abstraction that will hopefully be useful for other drivers, along
with support for shrinking for TTM devices. I'm sure xe and AMD
support new devices, but the pipeline depth on these things is hard to
know what they end up being in the marketplace!
uapi:
- add mediatek tiled fourcc
- add support for notifying userspace on device wedged
new driver:
- appletbdrm: support for Apple Touchbar displays on m1/m2
- nova-core: skeleton rust driver to develop nova inside off
firmware:
- add some rust firmware pieces
rust:
- add 'LocalModule' type alias
component:
- add helper to query bound status
fbdev:
- fbtft: remove access to page->index
media:
- cec: tda998x: import driver from drm
dma-buf:
- add fast path for single fence merging
tests:
- fix lockdep warnings
atomic:
- allow full modeset on connector changes
- clarify semantics of allow_modeset and drm_atomic_helper_check
- async-flip: support on arbitary planes
- writeback: fix UAF
- Document atomic-state history
format-helper:
- support ARGB8888 to ARGB4444 conversions
buddy:
- fix multi-root cleanup
ci:
- update IGT
dp:
- support extended wake timeout
- mst: fix RAD to string conversion
- increase DPCD eDP control CAP size to 5 bytes
- add DPCD eDP v1.5 definition
- add helpers for LTTPR transparent mode
panic:
- encode QR code according to Fido 2.2
scheduler:
- add parameter struct for init
- improve job peek/pop operations
- optimise drm_sched_job struct layout
ttm:
- refactor pool allocation
- add helpers for TTM shrinker
panel-orientation:
- add a bunch of new quirks
panel:
- convert panels to multi-style functions
- edp: Add support for B140UAN04.4, BOE NV140FHM-NZ, CSW MNB601LS1-3,
LG LP079QX1-SP0V, MNE007QS3-7, STA 116QHD024002, Starry
116KHD024006, Lenovo T14s Gen6 Snapdragon
- himax-hx83102: Add support for CSOT PNA957QT1-1, Kingdisplay
kd110n11-51ie, Starry 2082109qfh040022-50e
- visionox-r66451: use multi-style MIPI-DSI functions
- raydium-rm67200: Add driver for Raydium RM67200
- simple: Add support for BOE AV123Z7M-N17, BOE AV123Z7M-N17
- sony-td4353-jdi: Use MIPI-DSI multi-func interface
- summit: Add driver for Apple Summit display panel
- visionox-rm692e5: Add driver for Visionox RM692E5
bridge:
- pass full atomic state to various callbacks
- adv7511: Report correct capabilities
- it6505: Fix HDCP V compare
- snd65dsi86: fix device IDs
- nwl-dsi: set bridge type
- ti-sn65si83: add error recovery and set bridge type
- synopsys: add HDMI audio support
xe:
- support device-wedged event
- add mmap support for PCI memory barrier
- perf pmu integration and expose per-engien activity
- add EU stall sampling support
- GPU SVM and Xe SVM implementation
- use TTM shrinker
- add survivability mode to allow the driver to do firmware updates
in critical failure states
- PXP HWDRM support for MTL and LNL
- expose package/vram temps over hwmon
- enable DP tunneling
- drop mmio_ext abstraction
- Reject BO evcition if BO is bound to current VM
- Xe suballocator improvements
- re-use display vmas when possible
- add GuC Buffer Cache abstraction
- PCI ID update for Panther Lake and Battlemage
- Enable SRIOV for Panther Lake
- Refactor VRAM manager location
i915:
- enable extends wake timeout
- support device-wedged event
- Enable DP 128b/132b SST DSC
- FBC dirty rectangle support for display version 30+
- convert i915/xe to drm client setup
- Compute HDMI PLLS for rates not in fixed tables
- Allow DSB usage when PSR is enabled on LNL+
- Enable panel replay without full modeset
- Enable async flips with compressed buffers on ICL+
- support luminance based brightness via DPCD for eDP
- enable VRR enable/disable without full modeset
- allow GuC SLPC default strategies on MTL+ for performance
- lots of display refactoring in move to struct intel_display
amdgpu:
- add device wedged event
- support async page flips on overlay planes
- enable broadcast RGB drm property
- add info ioctl for virt mode
- OEM i2c support for RGB lights
- GC 11.5.2 + 11.5.3 support
- SDMA 6.1.3 support
- NBIO 7.9.1 + 7.11.2 support
- MMHUB 1.8.1 + 3.3.2 support
- DCN 3.6.0 support
- Add dynamic workload profile switching for GC 10-12
- support larger VBIOS sizes
- Mark gttsize parameters as deprecated
- Initial JPEG queue resset support
amdkfd:
- add KFD per process flags for setting precision
- sync pasid values between KGD and KFD
- improve GTT/VRAM handling for APUs
- fix user queue validation on GC7/8
- SDMA queue reset support
raedeon:
- rs400 hyperz fix
i2c:
- td998x: drop platform_data, split driver into media and bridge
ast:
- transmitter chip detection refactoring
- vbios display mode refactoring
- astdp: fix connection status and filter unsupported modes
- cursor handling refactoring
imagination:
- check job dependencies with sched helper
ivpu:
- improve command queue handling
- use workqueue for IRQ handling
- add support HW fault injection
- locking fixes
mgag200:
- add support for G200eH5
msm:
- dpu: add concurrent writeback support for DPU 10.x+
- use LTTPR helpers
- GPU:
- Fix obscure GMU suspend failure
- Expose syncobj timeline support
- Extend GPU devcoredump with pagetable info
- a623 support
- Fix a6xx gen1/gen2 indexed-register blocks in gpu snapshot /
devcoredump
- Display:
- Add cpu-cfg interconnect paths on SM8560 and SM8650
- Introduce KMS OMMU fault handler, causing devcoredump snapshot
- Fixed error pointer dereference in msm_kms_init_aspace()
- DPU:
- Fix mode_changing handling
- Add writeback support on SM6150 (QCS615)
- Fix DSC programming in 1:1:1 topology
- Reworked hardware resource allocation, moving it to the CRTC code
- Enabled support for Concurrent WriteBack (CWB) on SM8650
- Enabled CDM blocks on all relevant platforms
- Reworked debugfs interface for BW/clocks debugging
- Clear perf params before calculating bw
- Support YUV formats on writeback
- Fixed double inclusion
- Fixed writeback in YUV formats when using cloned output, Dropped
wb2_formats_rgb
- Corrected dpu_crtc_check_mode_changed and struct dpu_encoder_virt
kerneldocs
- Fixed uninitialized variable in dpu_crtc_kickoff_clone_mode()
- DSI:
- DSC-related fixes
- Rework clock programming
- DSI PHY:
- Fix 7nm (and lower) PHY programming
- Add proper DT schema definitions for DSI PHY clocks
- HDMI:
- Rework the driver, enabling the use of the HDMI Connector
framework
- Bindings:
- Added eDP PHY on SA8775P
nouveau:
- move drm_slave_encoder interface into driver
- nvkm: refactor GSP RPC
- use LTTPR helpers
mediatek:
- HDMI fixup and refinement
- add MT8188 dsc compatible
- MT8365 SoC support
panthor:
- Expose sizes of intenral BOs via fdinfo
- Fix race between reset and suspend
- Improve locking
qaic:
- Add support for AIC200
renesas:
- Fix limits in DT bindings
rockchip:
- support rk3562-mali
- rk3576: Add HDMI support
- vop2: Add new display modes on RK3588 HDMI0 up to 4K
- Don't change HDMI reference clock rate
- Fix DT bindings
- analogix_dp: add eDP support
- fix shutodnw
solomon:
- Set SPI device table to silence warnings
- Fix pixel and scanline encoding
v3d:
- handle clock
vc4:
- Use drm_exec
- Use dma-resv for wait-BO ioctl
- Remove seqno infrastructure
virtgpu:
- Support partial mappings of GEM objects
- Reserve VGA resources during initialization
- Fix UAF in virtgpu_dma_buf_free_obj()
- Add panic support
vkms:
- Switch to a managed modesetting pipeline
- Add support for ARGB8888
- fix UAf
xlnx:
- Set correct DMA segment size
- use mutex guards
- Fix error handling
- Fix docs"
* tag 'drm-next-2025-03-28' of https://gitlab.freedesktop.org/drm/kernel: (1762 commits)
drm/amd/pm: Update feature list for smu_v13_0_6
drm/amdgpu: Add parameter documentation for amdgpu_sync_fence
drm/amdgpu/discovery: optionally use fw based ip discovery
drm/amdgpu/discovery: use specific ip_discovery.bin for legacy asics
drm/amdgpu/discovery: check ip_discovery fw file available
drm/amd/pm: Remove unnecessay UQ10 to UINT conversion
drm/amd/pm: Remove unnecessay UQ10 to UINT conversion
drm/amdgpu/sdma_v4_4_2: update VM flush implementation for SDMA
drm/amdgpu: Optimize VM invalidation engine allocation and synchronize GPU TLB flush
drm/amd/amdgpu: Increase max rings to enable SDMA page ring
drm/amdgpu: Decode deferred error type in gfx aca bank parser
drm/amdgpu/gfx11: Add Cleaner Shader Support for GFX11.5 GPUs
drm/amdgpu/mes: clean up SDMA HQD loop
drm/amdgpu/mes: enable compute pipes across all MEC
drm/amdgpu/mes: drop MES 10.x leftovers
drm/amdgpu/mes: optimize compute loop handling
drm/amdgpu/sdma: guilty tracking is per instance
drm/amdgpu/sdma: fix engine reset handling
drm/amdgpu: remove invalid usage of sched.ready
drm/amdgpu: add cleaner shader trace point
...
|
||
|
Linus Torvalds
|
336b4dae6d |
IOMMU Updates for Linux v6.15
Including:
- Core: IOMMUFD dependencies from Jason:
- Change the iommufd fault handle into an always present hwpt handle in
the domain
- Give iommufd its own SW_MSI implementation along with some IRQ layer
rework
- Improvements to the handle attach API
- Core: Fixes for probe-issues from Robin
- Intel VT-d changes:
- Checking for SVA support in domain allocation and attach paths
- Move PCI ATS and PRI configuration into probe paths
- Fix a pentential hang on reboot -f
- Miscellaneous cleanups
- AMD-Vi changes:
- Support for up to 2k IRQs per PCI device function
- Set of smaller fixes
- ARM-SMMU changes:
- SMMUv2 devicetree binding updates for Qualcomm implementations
(QCS8300 GPU and MSM8937)
- Clean up SMMUv2 runtime PM implementation to help with wider rework of
pm_runtime_put_autosuspend()
- Rockchip driver changes:
- Driver adjustments for recent DT probing changes
- S390 IOMMU changes:
- Support for IOMMU passthrough
- Apple Dart changes:
- Driver adjustments to meet ISP device requirements
- Null-ptr deref fix
- Disable subpage protection for DART 1
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Merge tag 'iommu-updates-v6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux
Pull iommu updates from Joerg Roedel:
"Core iommufd dependencies from Jason:
- Change the iommufd fault handle into an always present hwpt handle
in the domain
- Give iommufd its own SW_MSI implementation along with some IRQ
layer rework
- Improvements to the handle attach API
Core fixes for probe-issues from Robin
Intel VT-d changes:
- Checking for SVA support in domain allocation and attach paths
- Move PCI ATS and PRI configuration into probe paths
- Fix a pentential hang on reboot -f
- Miscellaneous cleanups
AMD-Vi changes:
- Support for up to 2k IRQs per PCI device function
- Set of smaller fixes
ARM-SMMU changes:
- SMMUv2 devicetree binding updates for Qualcomm implementations
(QCS8300 GPU and MSM8937)
- Clean up SMMUv2 runtime PM implementation to help with wider rework
of pm_runtime_put_autosuspend()
Rockchip driver changes:
- Driver adjustments for recent DT probing changes
S390 IOMMU changes:
- Support for IOMMU passthrough
Apple Dart changes:
- Driver adjustments to meet ISP device requirements
- Null-ptr deref fix
- Disable subpage protection for DART 1"
* tag 'iommu-updates-v6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux: (54 commits)
iommu/vt-d: Fix possible circular locking dependency
iommu/vt-d: Don't clobber posted vCPU IRTE when host IRQ affinity changes
iommu/vt-d: Put IRTE back into posted MSI mode if vCPU posting is disabled
iommu: apple-dart: fix potential null pointer deref
iommu/rockchip: Retire global dma_dev workaround
iommu/rockchip: Register in a sensible order
iommu/rockchip: Allocate per-device data sensibly
iommu/mediatek-v1: Support COMPILE_TEST
iommu/amd: Enable support for up to 2K interrupts per function
iommu/amd: Rename DTE_INTTABLEN* and MAX_IRQS_PER_TABLE macro
iommu/amd: Replace slab cache allocator with page allocator
iommu/amd: Introduce generic function to set multibit feature value
iommu: Don't warn prematurely about dodgy probes
iommu/arm-smmu: Set rpm auto_suspend once during probe
dt-bindings: arm-smmu: Document QCS8300 GPU SMMU
iommu: Get DT/ACPI parsing into the proper probe path
iommu: Keep dev->iommu state consistent
iommu: Resolve ops in iommu_init_device()
iommu: Handle race with default domain setup
iommu: Unexport iommu_fwspec_free()
...
|
||
|
Linus Torvalds
|
e50da555ca |
sound updates for 6.15-rc1
We've received lots of commits at this time, as a result of various
cleanup and refactoring works as well as a few new drivers and the
generic SoundWire support. Most of changes are device-specific,
little about the core changes. Some highlights below:
Core:
* A couple of (rather minor) race fixes in ALSA sequencer code
* A regression fix in ALSA timer code that may lead to a deadlock
ASoC:
* A large series of code conversion to use modern terminology for the
clocking configuration
* Conversions of PM ops with the modern macros in all ASoC drivers
* Clarification of the control operations
* Prepartory work for more generic SoundWire SCDA controls
* Support for AMD ACP 7.x, AWINC WM88166, Everest ES8388, Intel AVS
PEAKVOL and GAIN DSP modules Mediatek MT8188 DMIC, NXP i.MX95,
nVidia Tegra interconnects, Rockchip RK3588 S/PDIF, Texas
Instruments SN012776 and TAS5770L, and Wolfson WM8904 DMICs
Others:
* Conversions of PM ops with the modern macros in the rest drivers
* USB-audio quirks and fixes for Presonus Studio, DJM-A9, CME
* HD-audio quirks and fixes ASUS, HP, Lenovo, and others
Note that the PR contains some changes from the tip tree for AMD code,
and it might give some merge conflict due to the rebase afterwards.
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Merge tag 'sound-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"We've received lots of commits at this time, as a result of various
cleanup and refactoring works as well as a few new drivers and the
generic SoundWire support. Most of changes are device-specific, little
about the core changes. Some highlights below:
Core:
- A couple of (rather minor) race fixes in ALSA sequencer code
- A regression fix in ALSA timer code that may lead to a deadlock
ASoC:
- A large series of code conversion to use modern terminology for the
clocking configuration
- Conversions of PM ops with the modern macros in all ASoC drivers
- Clarification of the control operations
- Prepartory work for more generic SoundWire SCDA controls
- Support for AMD ACP 7.x, AWINC WM88166, Everest ES8388, Intel AVS
PEAKVOL and GAIN DSP modules Mediatek MT8188 DMIC, NXP i.MX95,
nVidia Tegra interconnects, Rockchip RK3588 S/PDIF, Texas
Instruments SN012776 and TAS5770L, and Wolfson WM8904 DMICs
Others:
- Conversions of PM ops with the modern macros in the rest drivers
- USB-audio quirks and fixes for Presonus Studio, DJM-A9, CME
- HD-audio quirks and fixes ASUS, HP, Lenovo, and others"
* tag 'sound-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (651 commits)
ALSA: hda: tas2781-i2c: Remove unnecessary NULL check before release_firmware()
ALSA: hda: cs35l56: Remove unnecessary NULL check before release_firmware()
ALSA: hda/realtek: Bass speaker fixup for ASUS UM5606KA
ALSA: hda/realtek: Fix built-in mic assignment on ASUS VivoBook X515UA
ALSA: hda/realtek: Add support for various HP Laptops using CS35L41 HDA
ALSA: timer: Don't take register_mutex with copy_from/to_user()
ASoC: SDCA: Correct handling of selected mode DisCo property
ASoC: amd: yc: update quirk data for new Lenovo model
ALSA: hda/realtek: fix micmute LEDs on HP Laptops with ALC3247
ALSA: hda/realtek: fix micmute LEDs on HP Laptops with ALC3315
ASoC: SOF: mediatek: Commonize duplicated functions
ASoC: dmic: Fix NULL pointer dereference
ASoC: wm8904: add DMIC support
ASoC: wm8904: get platform data from DT
ASoC: dt-bindings: wm8904: Add DMIC, GPIO, MIC and EQ support
ASoC: wm8904: Don't touch GPIO configs set to 0xFFFF
of: Add of_property_read_u16_index
ALSA: oxygen: Fix dependency on CONFIG_PM_SLEEP
ASoC: ops: Apply platform_max after deciding control type
ASoC: ops: Remove some unnecessary local variables
...
|
||
|
Linus Torvalds
|
7d20aa5c32 |
Power management updates for 6.15-rc1
- Manage sysfs attributes and boost frequencies efficiently from
cpufreq core to reduce boilerplate code in drivers (Viresh Kumar).
- Minor cleanups to cpufreq drivers (Aaron Kling, Benjamin Schneider,
Dhananjay Ugwekar, Imran Shaik, zuoqian).
- Migrate some cpufreq drivers to using for_each_present_cpu() (Jacky
Bai).
- cpufreq-qcom-hw DT binding fixes (Krzysztof Kozlowski).
- Use str_enable_disable() helper in cpufreq_online() (Lifeng Zheng).
- Optimize the amd-pstate driver to avoid cases where call paths end
up calling the same writes multiple times and needlessly caching
variables through code reorganization, locking overhaul and tracing
adjustments (Mario Limonciello, Dhananjay Ugwekar).
- Make it possible to avoid enabling capacity-aware scheduling (CAS) in
the intel_pstate driver and relocate a check for out-of-band (OOB)
platform handling in it to make it detect OOB before checking HWP
availability (Rafael Wysocki).
- Fix dbs_update() to avoid inadvertent conversions of negative integer
values to unsigned int which causes CPU frequency selection to be
inaccurate in some cases when the "conservative" cpufreq governor is
in use (Jie Zhan).
- Update the handling of the most recent idle intervals in the menu
cpuidle governor to prevent useful information from being discarded
by it in some cases and improve the prediction accuracy (Rafael
Wysocki).
- Make it possible to tell the intel_idle driver to ignore its built-in
table of idle states for the given processor, clean up the handling
of auto-demotion disabling on Baytrail and Cherrytrail chips in it,
and update its MAINTAINERS entry (David Arcari, Artem Bityutskiy,
Rafael Wysocki).
- Make some cpuidle drivers use for_each_present_cpu() instead of
for_each_possible_cpu() during initialization to avoid issues
occurring when nosmp or maxcpus=0 are used (Jacky Bai).
- Clean up the Energy Model handling code somewhat (Rafael Wysocki).
- Use kfree_rcu() to simplify the handling of runtime Energy Model
updates (Li RongQing).
- Add an entry for the Energy Model framework to MAINTAINERS as
properly maintained (Lukasz Luba).
- Address RCU-related sparse warnings in the Energy Model code (Rafael
Wysocki).
- Remove ENERGY_MODEL dependency on SMP and allow it to be selected
when DEVFREQ is set without CPUFREQ so it can be used on a wider
range of systems (Jeson Gao).
- Unify error handling during runtime suspend and runtime resume in the
core to help drivers to implement more consistent runtime PM error
handling (Rafael Wysocki).
- Drop a redundant check from pm_runtime_force_resume() and rearrange
documentation related to __pm_runtime_disable() (Rafael Wysocki).
- Rework the handling of the "smart suspend" driver flag in the PM core
to avoid issues hat may occur when drivers using it depend on some
other drivers and clean up the related PM core code (Rafael Wysocki,
Colin Ian King).
- Fix the handling of devices with the power.direct_complete flag set
if device_suspend() returns an error for at least one device to avoid
situations in which some of them may not be resumed (Rafael Wysocki).
- Use mutex_trylock() in hibernate_compressor_param_set() to avoid a
possible deadlock that may occur if the "compressor" hibernation
module parameter is accessed during the registration of a new
ieee80211 device (Lizhi Xu).
- Suppress sleeping parent warning in device_pm_add() in the case when
new children are added under a device with the power.direct_complete
set after it has been processed by device_resume() (Xu Yang).
- Remove needless return in three void functions related to system
wakeup (Zijun Hu).
- Replace deprecated kmap_atomic() with kmap_local_page() in the
hibernation core code (David Reaver).
- Remove unused helper functions related to system sleep (David Alan
Gilbert).
- Clean up s2idle_enter() so it does not lock and unlock CPU offline
in vain and update comments in it (Ulf Hansson).
- Clean up broken white space in dpm_wait_for_children() (Geert
Uytterhoeven).
- Update the cpupower utility to fix lib version-ing in it and memory
leaks in error legs, remove hard-coded values, and implement CPU
physical core querying (Thomas Renninger, John B. Wyatt IV, Shuah
Khan, Yiwei Lin, Zhongqiu Han).
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Merge tag 'pm-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"These are dominated by cpufreq updates which in turn are dominated by
updates related to boost support in the core and drivers and
amd-pstate driver optimizations.
Apart from the above, there are some cpuidle updates including a
rework of the most recent idle intervals handling in the venerable
menu governor that leads to significant improvements in some
performance benchmarks, as the governor is now more likely to predict
a shorter idle duration in some cases, and there are updates of the
core device power management code, mostly related to system suspend
and resume, that should help to avoid potential issues arising when
the drivers of devices depending on one another want to use different
optimizations.
There is also a usual collection of assorted fixes and cleanups,
including removal of some unused code.
Specifics:
- Manage sysfs attributes and boost frequencies efficiently from
cpufreq core to reduce boilerplate code in drivers (Viresh Kumar)
- Minor cleanups to cpufreq drivers (Aaron Kling, Benjamin Schneider,
Dhananjay Ugwekar, Imran Shaik, zuoqian)
- Migrate some cpufreq drivers to using for_each_present_cpu() (Jacky
Bai)
- cpufreq-qcom-hw DT binding fixes (Krzysztof Kozlowski)
- Use str_enable_disable() helper in cpufreq_online() (Lifeng Zheng)
- Optimize the amd-pstate driver to avoid cases where call paths end
up calling the same writes multiple times and needlessly caching
variables through code reorganization, locking overhaul and tracing
adjustments (Mario Limonciello, Dhananjay Ugwekar)
- Make it possible to avoid enabling capacity-aware scheduling (CAS)
in the intel_pstate driver and relocate a check for out-of-band
(OOB) platform handling in it to make it detect OOB before checking
HWP availability (Rafael Wysocki)
- Fix dbs_update() to avoid inadvertent conversions of negative
integer values to unsigned int which causes CPU frequency selection
to be inaccurate in some cases when the "conservative" cpufreq
governor is in use (Jie Zhan)
- Update the handling of the most recent idle intervals in the menu
cpuidle governor to prevent useful information from being discarded
by it in some cases and improve the prediction accuracy (Rafael
Wysocki)
- Make it possible to tell the intel_idle driver to ignore its
built-in table of idle states for the given processor, clean up the
handling of auto-demotion disabling on Baytrail and Cherrytrail
chips in it, and update its MAINTAINERS entry (David Arcari, Artem
Bityutskiy, Rafael Wysocki)
- Make some cpuidle drivers use for_each_present_cpu() instead of
for_each_possible_cpu() during initialization to avoid issues
occurring when nosmp or maxcpus=0 are used (Jacky Bai)
- Clean up the Energy Model handling code somewhat (Rafael Wysocki)
- Use kfree_rcu() to simplify the handling of runtime Energy Model
updates (Li RongQing)
- Add an entry for the Energy Model framework to MAINTAINERS as
properly maintained (Lukasz Luba)
- Address RCU-related sparse warnings in the Energy Model code
(Rafael Wysocki)
- Remove ENERGY_MODEL dependency on SMP and allow it to be selected
when DEVFREQ is set without CPUFREQ so it can be used on a wider
range of systems (Jeson Gao)
- Unify error handling during runtime suspend and runtime resume in
the core to help drivers to implement more consistent runtime PM
error handling (Rafael Wysocki)
- Drop a redundant check from pm_runtime_force_resume() and rearrange
documentation related to __pm_runtime_disable() (Rafael Wysocki)
- Rework the handling of the "smart suspend" driver flag in the PM
core to avoid issues hat may occur when drivers using it depend on
some other drivers and clean up the related PM core code (Rafael
Wysocki, Colin Ian King)
- Fix the handling of devices with the power.direct_complete flag set
if device_suspend() returns an error for at least one device to
avoid situations in which some of them may not be resumed (Rafael
Wysocki)
- Use mutex_trylock() in hibernate_compressor_param_set() to avoid a
possible deadlock that may occur if the "compressor" hibernation
module parameter is accessed during the registration of a new
ieee80211 device (Lizhi Xu)
- Suppress sleeping parent warning in device_pm_add() in the case
when new children are added under a device with the
power.direct_complete set after it has been processed by
device_resume() (Xu Yang)
- Remove needless return in three void functions related to system
wakeup (Zijun Hu)
- Replace deprecated kmap_atomic() with kmap_local_page() in the
hibernation core code (David Reaver)
- Remove unused helper functions related to system sleep (David Alan
Gilbert)
- Clean up s2idle_enter() so it does not lock and unlock CPU offline
in vain and update comments in it (Ulf Hansson)
- Clean up broken white space in dpm_wait_for_children() (Geert
Uytterhoeven)
- Update the cpupower utility to fix lib version-ing in it and memory
leaks in error legs, remove hard-coded values, and implement CPU
physical core querying (Thomas Renninger, John B. Wyatt IV, Shuah
Khan, Yiwei Lin, Zhongqiu Han)"
* tag 'pm-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (139 commits)
PM: sleep: Fix bit masking operation
dt-bindings: cpufreq: cpufreq-qcom-hw: Narrow properties on SDX75, SA8775p and SM8650
dt-bindings: cpufreq: cpufreq-qcom-hw: Drop redundant minItems:1
dt-bindings: cpufreq: cpufreq-qcom-hw: Add missing constraint for interrupt-names
dt-bindings: cpufreq: cpufreq-qcom-hw: Add QCS8300 compatible
cpufreq: Init cpufreq only for present CPUs
PM: sleep: Fix handling devices with direct_complete set on errors
cpuidle: Init cpuidle only for present CPUs
PM: clk: Remove unused pm_clk_remove()
PM: sleep: core: Fix indentation in dpm_wait_for_children()
PM: s2idle: Extend comment in s2idle_enter()
PM: s2idle: Drop redundant locks when entering s2idle
PM: sleep: Remove unused pm_generic_ wrappers
cpufreq: tegra186: Share policy per cluster
cpupower: Make lib versioning scheme more obvious and fix version link
PM: EM: Rework the depends on for CONFIG_ENERGY_MODEL
PM: EM: Address RCU-related sparse warnings
cpupower: Implement CPU physical core querying
pm: cpupower: remove hard-coded topology depth values
pm: cpupower: Fix cmd_monitor() error legs to free cpu_topology
...
|
||
|
Linus Torvalds
|
2d09a9449e |
arm64 updates for 6.15:
Perf and PMUs:
- Support for the "Rainier" CPU PMU from Arm
- Preparatory driver changes and cleanups that pave the way for BRBE
support
- Support for partial virtualisation of the Apple-M1 PMU
- Support for the second event filter in Arm CSPMU designs
- Minor fixes and cleanups (CMN and DWC PMUs)
- Enable EL2 requirements for FEAT_PMUv3p9
Power, CPU topology:
- Support for AMUv1-based average CPU frequency
- Run-time SMT control wired up for arm64 (CONFIG_HOTPLUG_SMT). It adds
a generic topology_is_primary_thread() function overridden by x86 and
powerpc
New(ish) features:
- MOPS (memcpy/memset) support for the uaccess routines
Security/confidential compute:
- Fix the DMA address for devices used in Realms with Arm CCA. The
CCA architecture uses the address bit to differentiate between shared
and private addresses
- Spectre-BHB: assume CPUs Linux doesn't know about vulnerable by
default
Memory management clean-ups:
- Drop the P*D_TABLE_BIT definition in preparation for 128-bit PTEs
- Some minor page table accessor clean-ups
- PIE/POE (permission indirection/overlay) helpers clean-up
Kselftests:
- MTE: skip hugetlb tests if MTE is not supported on such mappings and
user correct naming for sync/async tag checking modes
Miscellaneous:
- Add a PKEY_UNRESTRICTED definition as 0 to uapi (toolchain people
request)
- Sysreg updates for new register fields
- CPU type info for some Qualcomm Kryo cores
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Catalin Marinas:
"Nothing major this time around.
Apart from the usual perf/PMU updates, some page table cleanups, the
notable features are average CPU frequency based on the AMUv1
counters, CONFIG_HOTPLUG_SMT and MOPS instructions (memcpy/memset) in
the uaccess routines.
Perf and PMUs:
- Support for the 'Rainier' CPU PMU from Arm
- Preparatory driver changes and cleanups that pave the way for BRBE
support
- Support for partial virtualisation of the Apple-M1 PMU
- Support for the second event filter in Arm CSPMU designs
- Minor fixes and cleanups (CMN and DWC PMUs)
- Enable EL2 requirements for FEAT_PMUv3p9
Power, CPU topology:
- Support for AMUv1-based average CPU frequency
- Run-time SMT control wired up for arm64 (CONFIG_HOTPLUG_SMT). It
adds a generic topology_is_primary_thread() function overridden by
x86 and powerpc
New(ish) features:
- MOPS (memcpy/memset) support for the uaccess routines
Security/confidential compute:
- Fix the DMA address for devices used in Realms with Arm CCA. The
CCA architecture uses the address bit to differentiate between
shared and private addresses
- Spectre-BHB: assume CPUs Linux doesn't know about vulnerable by
default
Memory management clean-ups:
- Drop the P*D_TABLE_BIT definition in preparation for 128-bit PTEs
- Some minor page table accessor clean-ups
- PIE/POE (permission indirection/overlay) helpers clean-up
Kselftests:
- MTE: skip hugetlb tests if MTE is not supported on such mappings
and user correct naming for sync/async tag checking modes
Miscellaneous:
- Add a PKEY_UNRESTRICTED definition as 0 to uapi (toolchain people
request)
- Sysreg updates for new register fields
- CPU type info for some Qualcomm Kryo cores"
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (72 commits)
arm64: mm: Don't use %pK through printk
perf/arm_cspmu: Fix missing io.h include
arm64: errata: Add newer ARM cores to the spectre_bhb_loop_affected() lists
arm64: cputype: Add MIDR_CORTEX_A76AE
arm64: errata: Add KRYO 2XX/3XX/4XX silver cores to Spectre BHB safe list
arm64: errata: Assume that unknown CPUs _are_ vulnerable to Spectre BHB
arm64: errata: Add QCOM_KRYO_4XX_GOLD to the spectre_bhb_k24_list
arm64/sysreg: Enforce whole word match for open/close tokens
arm64/sysreg: Fix unbalanced closing block
arm64: Kconfig: Enable HOTPLUG_SMT
arm64: topology: Support SMT control on ACPI based system
arch_topology: Support SMT control for OF based system
cpu/SMT: Provide a default topology_is_primary_thread()
arm64/mm: Define PTDESC_ORDER
perf/arm_cspmu: Add PMEVFILT2R support
perf/arm_cspmu: Generalise event filtering
perf/arm_cspmu: Move register definitons to header
arm64/kernel: Always use level 2 or higher for early mappings
arm64/mm: Drop PXD_TABLE_BIT
arm64/mm: Check pmd_table() in pmd_trans_huge()
...
|
||
|
Catalin Marinas
|
8ae9e2d832 |
Merge branch 'for-next/smt-control' into for-next/core
* for-next/smt-control: : Support SMT control on arm64 arm64: Kconfig: Enable HOTPLUG_SMT arm64: topology: Support SMT control on ACPI based system arch_topology: Support SMT control for OF based system cpu/SMT: Provide a default topology_is_primary_thread() |
||
|
Linus Torvalds
|
a50b4fe095 |
A treewide hrtimer timer cleanup
hrtimers are initialized with hrtimer_init() and a subsequent store to the callback pointer. This turned out to be suboptimal for the upcoming Rust integration and is obviously a silly implementation to begin with. This cleanup replaces the hrtimer_init(T); T->function = cb; sequence with hrtimer_setup(T, cb); The conversion was done with Coccinelle and a few manual fixups. Once the conversion has completely landed in mainline, hrtimer_init() will be removed and the hrtimer::function becomes a private member. -----BEGIN PGP SIGNATURE----- iQJHBAABCgAxFiEEQp8+kY+LLUocC4bMphj1TA10mKEFAmff5jQTHHRnbHhAbGlu dXRyb25peC5kZQAKCRCmGPVMDXSYoVvRD/wKtuwmiA66NJFgXC0qVq82A6fO3bY8 GBdbfysDJIbqGu5PTcULTbJ8qkqv3jeLUv6CcXvS4sZ7y/uJQl2lzf8yrD/0bbwc rLI6sHiPSZmK93kNVN4X5H7kvt7cE/DYC9nnEOgK3BY5FgKc4n9887d4aVBhL8Lv ODwVXvZ+xi351YCj7qRyPU24zt/p4tkkT1o2k4a0HBluqLI0D+V20fke9IERUL8r d1uWKlcn0TqYDesE8HXKIhbst3gx52rMJrXBJDHwFmG6v8Pj1fkTXCVpPo8QcBz8 OTVkpomN9f/Tx4+GZwhZOF86LhLL3OhxD6pT7JhFCXdmSGv+Ez8uyk1YZysM/XpV Juy/1yAcBpDIDkmhMFGdAAn48Nn9Fotty0r4je60zSEp1d/4QMXcFme29qr2JTUE iWnQ/HD6DxUjVHqy7CYvvo26Xegg1C7qgyOVt4PYZwAM1VKF5P3kzYTb4SAdxtop Tpji1sfW9QV08jqMNo6XntD32DSP9S2HqjO9LwBw700jnx2jjJ35fcJs6iodMOUn gckIZLMn3L0OoglPdyA5O7SNTbKE7aFiRKdnT/cJtR3Fa39Qu27CwC5gfiyuie9I Q+LG8GLuYSBHXAR+PBK4GWlzJ7Dn8k3eqmbnLeKpRMsU6ZzcttgA64xhaviN2wN0 iJbvLJeisXr3GA== =bYAX -----END PGP SIGNATURE----- Merge tag 'timers-cleanups-2025-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer cleanups from Thomas Gleixner: "A treewide hrtimer timer cleanup hrtimers are initialized with hrtimer_init() and a subsequent store to the callback pointer. This turned out to be suboptimal for the upcoming Rust integration and is obviously a silly implementation to begin with. This cleanup replaces the hrtimer_init(T); T->function = cb; sequence with hrtimer_setup(T, cb); The conversion was done with Coccinelle and a few manual fixups. Once the conversion has completely landed in mainline, hrtimer_init() will be removed and the hrtimer::function becomes a private member" * tag 'timers-cleanups-2025-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (100 commits) wifi: rt2x00: Switch to use hrtimer_update_function() io_uring: Use helper function hrtimer_update_function() serial: xilinx_uartps: Use helper function hrtimer_update_function() ASoC: fsl: imx-pcm-fiq: Switch to use hrtimer_setup() RDMA: Switch to use hrtimer_setup() virtio: mem: Switch to use hrtimer_setup() drm/vmwgfx: Switch to use hrtimer_setup() drm/xe/oa: Switch to use hrtimer_setup() drm/vkms: Switch to use hrtimer_setup() drm/msm: Switch to use hrtimer_setup() drm/i915/request: Switch to use hrtimer_setup() drm/i915/uncore: Switch to use hrtimer_setup() drm/i915/pmu: Switch to use hrtimer_setup() drm/i915/perf: Switch to use hrtimer_setup() drm/i915/gvt: Switch to use hrtimer_setup() drm/i915/huc: Switch to use hrtimer_setup() drm/amdgpu: Switch to use hrtimer_setup() stm class: heartbeat: Switch to use hrtimer_setup() i2c: Switch to use hrtimer_setup() iio: Switch to use hrtimer_setup() ... |
||
|
Linus Torvalds
|
26d8e43079 |
vfs-6.15-rc1.async.dir
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Merge tag 'vfs-6.15-rc1.async.dir' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs async dir updates from Christian Brauner:
"This contains cleanups that fell out of the work from async directory
handling:
- Change kern_path_locked() and user_path_locked_at() to never return
a negative dentry. This simplifies the usability of these helpers
in various places
- Drop d_exact_alias() from the remaining place in NFS where it is
still used. This also allows us to drop the d_exact_alias() helper
completely
- Drop an unnecessary call to fh_update() from nfsd_create_locked()
- Change i_op->mkdir() to return a struct dentry
Change vfs_mkdir() to return a dentry provided by the filesystems
which is hashed and positive. This allows us to reduce the number
of cases where the resulting dentry is not positive to very few
cases. The code in these places becomes simpler and easier to
understand.
- Repack DENTRY_* and LOOKUP_* flags"
* tag 'vfs-6.15-rc1.async.dir' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
doc: fix inline emphasis warning
VFS: Change vfs_mkdir() to return the dentry.
nfs: change mkdir inode_operation to return alternate dentry if needed.
fuse: return correct dentry for ->mkdir
ceph: return the correct dentry on mkdir
hostfs: store inode in dentry after mkdir if possible.
Change inode_operations.mkdir to return struct dentry *
nfsd: drop fh_update() from S_IFDIR branch of nfsd_create_locked()
nfs/vfs: discard d_exact_alias()
VFS: add common error checks to lookup_one_qstr_excl()
VFS: change kern_path_locked() and user_path_locked_at() to never return negative dentry
VFS: repack LOOKUP_ bit flags.
VFS: repack DENTRY_ flags.
|
||
|
Linus Torvalds
|
c4cff1ea37 |
vfs-6.15-rc1.mount.api
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCZ90q+gAKCRCRxhvAZXjc ol6uAQCGxtqC3w0bXLF1SKsRlDlYvmAJzRVHMGIxhwpNzeyGAQEApK52+WovJy+1 zozWTCiGXF8N/IhlqVlrMb6GANmjWAQ= =CcBh -----END PGP SIGNATURE----- Merge tag 'vfs-6.15-rc1.mount.api' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull vfs mount API updates from Christian Brauner: "This converts the remaining pseudo filesystems to the new mount api. The sysv conversion is a bit gratuitous because we remove sysv in another pull request. But if we have to revert the removal we at least will have it converted to the new mount api already" * tag 'vfs-6.15-rc1.mount.api' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: sysv: convert sysv to use the new mount api vfs: remove some unused old mount api code devtmpfs: replace ->mount with ->get_tree in public instance vfs: Convert devpts to use the new mount API pstore: convert to the new mount API |
||
|
Rafael J. Wysocki
|
c5a55e427c |
Merge branch 'pm-misc'
Merge two commits removing unused helper functions related to power management (David Alan Gilbert). * pm-misc: PM: clk: Remove unused pm_clk_remove() PM: clk: remove unused of_pm_clk_add_clk() |
||
|
Rafael J. Wysocki
|
5a98796468 |
Merge branch 'pm-sleep'
Merge updates related to system sleep for 6.15-rc1 including fixes, cleanups and a rework of the "smart suspend" driver flag handling to avoid issues that may occur when drivers using it depend on some other drivers: - Rework the handling of the "smart suspend" driver flag in the PM core to avoid issues hat may occur when drivers using it depend on some other drivers and clean up the related PM core code (Rafael Wysocki, Colin Ian King). - Fix the handling of devices with the power.direct_complete flag set if device_suspend() returns an error for at least one device to avoid situations in which some of them may not be resumed (Rafael Wysocki). - Use mutex_trylock() in hibernate_compressor_param_set() to avoid a possible deadlock that may occur if the "compressor" hibernation module parameter is accessed during the registration of a new ieee80211 device (Lizhi Xu). - Suppress sleeping parent warning in device_pm_add() in the case when new children are added under a device with the power.direct_complete set after it has been processed by device_resume() (Xu Yang). - Remove needless return in three void functions related to system wakeup (Zijun Hu). - Replace deprecated kmap_atomic() with kmap_local_page() in the hibernation core code (David Reaver). - Remove unused helper functions related to system sleep (David Alan Gilbert). - Clean up s2idle_enter() so it does not lock and unlock CPU offline in vain and update comments in it (Ulf Hansson). - Clean up broken white space in dpm_wait_for_children() (Geert Uytterhoeven). * pm-sleep: PM: sleep: Fix bit masking operation PM: sleep: Fix handling devices with direct_complete set on errors PM: sleep: core: Fix indentation in dpm_wait_for_children() PM: s2idle: Extend comment in s2idle_enter() PM: s2idle: Drop redundant locks when entering s2idle PM: sleep: Remove unused pm_generic_ wrappers PM: sleep: Rearrange dpm_async_fn() and async state clearing PM: sleep: Rename power.async_in_progress to power.work_in_progress PM: core: Tweak pm_runtime_block_if_disabled() return value PM: runtime: Convert pm_runtime_blocked() to static inline PM: sleep: Update power.smart_suspend under PM spinlock PM: sleep: Adjust check before setting power.must_resume PM: wakeup: Remove needless return in three void APIs PM: sleep: Suppress sleeping parent warning in special case PM: hibernate: Avoid deadlock in hibernate_compressor_param_set() PM: sleep: Avoid unnecessary checks in device_prepare_smart_suspend() PM: sleep: Use DPM_FLAG_SMART_SUSPEND conditionally PM: runtime: Introduce pm_runtime_blocked() PM: Block enabling of runtime PM during system suspend PM: hibernate: Replace deprecated kmap_atomic() with kmap_local_page() |
||
|
Rafael J. Wysocki
|
8713024412 |
Merge branches 'pm-em' and 'pm-runtime'
Merge Energy Model handling code updates and updates of the runtime PM core code for 6.15-rc1: - Clean up the Energy Model handling code somewhat (Rafael Wysocki). - Use kfree_rcu() to simplify the handling of runtime Energy Model updates (Li RongQing). - Add an entry for the Energy Model framework to MAINTAINERS as properly maintained (Lukasz Luba). - Address RCU-related sparse warnings in the Energy Model code (Rafael Wysocki). - Remove ENERGY_MODEL dependency on SMP and allow it to be selected when DEVFREQ is set without CPUFREQ so it can be used on a wider range of systems (Jeson Gao). - Unify error handling during runtime suspend and runtime resume in the core to help drivers to implement more consistent runtime PM error handling (Rafael Wysocki). - Drop a redundant check from pm_runtime_force_resume() and rearrange documentation related to __pm_runtime_disable() (Rafael Wysocki). * pm-em: PM: EM: Rework the depends on for CONFIG_ENERGY_MODEL PM: EM: Address RCU-related sparse warnings PM: EM: Consify two parameters of em_dev_register_perf_domain() MAINTAINERS: Add Energy Model framework as properly maintained PM: EM: use kfree_rcu() to simplify the code PM: EM: Slightly reduce em_check_capacity_update() overhead PM: EM: Drop unused parameter from em_adjust_new_capacity() * pm-runtime: PM: runtime: Unify error handling during suspend and resume PM: runtime: Drop status check from pm_runtime_force_resume() PM: Rearrange documentation related to __pm_runtime_disable() |
||
|
Colin Ian King
|
3860cbe239 |
PM: sleep: Fix bit masking operation
The mask operation link->flags | DL_FLAG_PM_RUNTIME is always true which
is incorrect. The mask operation should be using the bit-wise &
operator. Fix this.
Fixes:
|
||
|
Mark Brown
|
3160e75053
|
ASoC: wm8904: Add DMIC and DRC support
Merge series from Francesco Dolcini <francesco@dolcini.it>: This patch series adds DMIC and DRC support to the WM8904 driver, a new of_ helper is added to simplify the driver code. DRC functionality is added in the same patch series to provide the necessary dynamic range control to make DMIC support useful. The WM8904 supports digital microphones on two of its inputs: IN1L/DMICDAT1 and IN1R/DMICDAT2. These two inputs can either be connected to an ADC or to the DMIC system. There is an ADC for each line, and only one DMIC block. This DMIC block is either connected to DMICDAT1 or to DMICDAT2. One DMIC data line supports two digital microphones via time multiplexing. The pin's functionality is decided during hardware design (IN1L vs DMICDAT1 and IN1R vs DMICDAT2). This is reflected in the Device Tree. If one line is analog and one is DMIC, we need to be able to switch between ADC and DMIC at runtime. The DMIC source is known from the Device Tree. If both are DMIC inputs, we need to be able to switch the DMIC source. There is no need to switch between ADC and DMIC at runtime. Therefore, kcontrols are dynamically added by the driver depending on its Device Tree configuration. This is a heavy rework of a previous patch series provided by Alifer Moraes and Pierluigi Passaro, https://lore.kernel.org/lkml/20220307141041.27538-1-alifer.m@variscite.com. |
||
|
Joerg Roedel
|
22df63a23a | Merge branches 'apple/dart', 'arm/smmu/updates', 'arm/smmu/bindings', 'rockchip', 's390', 'core', 'intel/vt-d' and 'amd/amd-vi' into next | ||
|
Gavin Shan
|
61659efdb3 |
drivers/base/memory: improve add_boot_memory_block()
Patch series "drivers/base/memory: Two cleanups", v3. Two cleanups to drivers/base/memory. This patch (of 2)L It's unnecessary to count the present sections for the specified block since the block will be added if any section in the block is present. Besides, for_each_present_section_nr() can be reused as Andrew Morton suggested. Improve by using for_each_present_section_nr() and dropping the unnecessary @section_count. No functional changes intended. Link: https://lkml.kernel.org/r/20250311233045.148943-1-gshan@redhat.com Link: https://lkml.kernel.org/r/20250311233045.148943-2-gshan@redhat.com Signed-off-by: Gavin Shan <gshan@redhat.com> Acked-by: David Hildenbrand <david@redhat.com> Acked-by: Oscar Salvador <osalvador@suse.de> Cc: Danilo Krummrich <dakr@kernel.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: "Rafael J. Wysocki" <rafael@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
||
|
Shiyang Ruan
|
100bc3b877 |
drivers/base/memory: simplify outputting of valid_zones_show()
No need to specify position at the first writing to the buf because the @len is always 0 at this time. Use sysfs_emit() instead to simplify it. Also avoid setting/checking default_zone with a conditional operator. Link: https://lkml.kernel.org/r/20250108015223.1522887-1-ruansy.fnst@fujitsu.com Signed-off-by: Shiyang Ruan <ruansy.fnst@fujitsu.com> Acked-by: David Hildenbrand <david@redhat.com> Cc: Oscar Salvador <osalvador@suse.de> Cc: "Rafael J. Wysocki" <rafael@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
||
|
Yicong Yang
|
5deb9c789a |
arch_topology: Support SMT control for OF based system
On building the topology from the devicetree, we've already gotten the SMT thread number of each core. Update the largest SMT thread number and enable the SMT control by the end of topology parsing. The framework's SMT control provides two interface to the users through /sys/devices/system/cpu/smt/control (Documentation/ABI/testing/sysfs-devices-system-cpu): 1) enable SMT by writing "on" and disable by "off" 2) enable SMT by writing max_thread_number or disable by writing 1 Both method support to completely disable/enable the SMT cores so both work correctly for symmetric SMT platform and asymmetric platform with non-SMT and one type SMT cores like: core A: 1 thread core B: X (X!=1) threads Note that for a theoretically possible multiple SMT-X (X>1) core platform the SMT control is also supported as expected but only by writing the "on/off" method. Reviewed-by: Pierre Gondois <pierre.gondois@arm.com> Reviewed-by: Dietmar Eggemann <dietmar.eggemann@arm.com> Signed-off-by: Yicong Yang <yangyicong@hisilicon.com> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: Sudeep Holla <sudeep.holla@arm.com> Link: https://lore.kernel.org/r/20250311075143.61078-3-yangyicong@huawei.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> |
||
|
Rafael J. Wysocki
|
03f1444016 |
PM: sleep: Fix handling devices with direct_complete set on errors
When dpm_suspend() fails, some devices with power.direct_complete set
may not have been handled by device_suspend() yet, so runtime PM has
not been disabled for them yet even though power.direct_complete is set.
Since device_resume() expects that runtime PM has been disabled for all
devices with power.direct_complete set, it will attempt to reenable
runtime PM for the devices that have not been processed by device_suspend()
which does not make sense. Had those devices had runtime PM disabled
before device_suspend() had run, device_resume() would have inadvertently
enable runtime PM for them, but this is not expected to happen because
it would require ->prepare() callbacks to return positive values for
devices with runtime PM disabled, which would be invalid.
In practice, this issue is most likely benign because pm_runtime_enable()
will not allow the "disable depth" counter to underflow, but it causes a
warning message to be printed for each affected device.
To allow device_resume() to distinguish the "direct complete" devices
that have been processed by device_suspend() from those which have not
been handled by it, make device_suspend() set power.is_suspended for
"direct complete" devices.
Next, move the power.is_suspended check in device_resume() before the
power.direct_complete check in it to make it skip the "direct complete"
devices that have not been handled by device_suspend().
This change is based on a preliminary patch from Saravana Kannan.
Fixes:
|
||
|
Dr. David Alan Gilbert
|
3efeeaf85f |
PM: clk: Remove unused pm_clk_remove()
pm_clk_remove() is currently unused.
It hasn't been used since at least 2011 when it was renamed from
pm_runtime_clk_remove() by commit
|
||
|
Geert Uytterhoeven
|
956af869a2 |
PM: sleep: core: Fix indentation in dpm_wait_for_children()
The body of dpm_wait_for_children() is indented by 7 spaces instead of a single TAB. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://patch.msgid.link/9c8ff2b103c3ba7b0d27bdc8248b05e3b1dc9551.1741776430.git.geert+renesas@glider.be Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
||
|
Dr. David Alan Gilbert
|
13b4f9e126 |
PM: sleep: Remove unused pm_generic_ wrappers
pm_generic_thaw_early() has been unused since 2016's commit |
||
|
Dave Airlie
|
626fb11566 |
Linux 6.14-rc6
-----BEGIN PGP SIGNATURE----- iQFSBAABCAA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAmfOKBUeHHRvcnZhbGRz QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiG1aQH/iC+Oyij4VxAjBek BOXIT/p6CwlIXb8ObiWWcRjDPizlcxb3RaV8J2RO+IqaQ2wltxpFANq2G7Re2FPm SNcEpIURAOVcxHGedcfFA91srO5F4FzNTO8LVp7MIbcgMYy3pdk+dbZmi6A691R+ t9pb74m+MAnF1o/MUx7pUlhAT/4ymuuR0F7WCSg4h0Xwe5m0nlJY89kJBC7PCjyd n3mdhsz3rDSLmt/z/T7HGD89r8sYSvm9cOKtL3ELgGTrm7boQV8ii9Y9w04DI8PQ JmIernugcCxmhH36mVUAHgJf2+/T388xFUh/D5+skeUOUZpaJZG866rnb32WpsHc eWLFUeg= =Wypt -----END PGP SIGNATURE----- Backmerge tag 'v6.14-rc6' into drm-next This is a backmerge from Linux 6.14-rc6, needed for the nova PR. Signed-off-by: Dave Airlie <airlied@redhat.com> |
||
|
Robin Murphy
|
bcb81ac6ae |
iommu: Get DT/ACPI parsing into the proper probe path
In hindsight, there were some crucial subtleties overlooked when moving
{of,acpi}_dma_configure() to driver probe time to allow waiting for
IOMMU drivers with -EPROBE_DEFER, and these have become an
ever-increasing source of problems. The IOMMU API has some fundamental
assumptions that iommu_probe_device() is called for every device added
to the system, in the order in which they are added. Calling it in a
random order or not at all dependent on driver binding leads to
malformed groups, a potential lack of isolation for devices with no
driver, and all manner of unexpected concurrency and race conditions.
We've attempted to mitigate the latter with point-fix bodges like
iommu_probe_device_lock, but it's a losing battle and the time has come
to bite the bullet and address the true source of the problem instead.
The crux of the matter is that the firmware parsing actually serves two
distinct purposes; one is identifying the IOMMU instance associated with
a device so we can check its availability, the second is actually
telling that instance about the relevant firmware-provided data for the
device. However the latter also depends on the former, and at the time
there was no good place to defer and retry that separately from the
availability check we also wanted for client driver probe.
Nowadays, though, we have a proper notion of multiple IOMMU instances in
the core API itself, and each one gets a chance to probe its own devices
upon registration, so we can finally make that work as intended for
DT/IORT/VIOT platforms too. All we need is for iommu_probe_device() to
be able to run the iommu_fwspec machinery currently buried deep in the
wrong end of {of,acpi}_dma_configure(). Luckily it turns out to be
surprisingly straightforward to bootstrap this transformation by pretty
much just calling the same path twice. At client driver probe time,
dev->driver is obviously set; conversely at device_add(), or a
subsequent bus_iommu_probe(), any device waiting for an IOMMU really
should *not* have a driver already, so we can use that as a condition to
disambiguate the two cases, and avoid recursing back into the IOMMU core
at the wrong times.
Obviously this isn't the nicest thing, but for now it gives us a
functional baseline to then unpick the layers in between without many
more awkward cross-subsystem patches. There are some minor side-effects
like dma_range_map potentially being created earlier, and some debug
prints being repeated, but these aren't significantly detrimental. Let's
make things work first, then deal with making them nice.
With the basic flow finally in the right order again, the next step is
probably turning the bus->dma_configure paths inside-out, since all we
really need from bus code is its notion of which device and input ID(s)
to parse the common firmware properties with...
Acked-by: Bjorn Helgaas <bhelgaas@google.com> # pci-driver.c
Acked-by: Rob Herring (Arm) <robh@kernel.org> # of/device.c
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/e3b191e6fd6ca9a1e84c5e5e40044faf97abb874.1740753261.git.robin.murphy@arm.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
|
||
|
Dave Airlie
|
11a5c6445a |
UAPI Changes:
- Expose per-engine activity via perf pmu (Riana, Lucas, Umesh)
- Add support for EU stall sampling (Harish, Ashutosh)
- Allow userspace to provide low latency hint for submission (Tejas)
- GPU SVM and Xe SVM implementation (Matthew Brost)
Cross-subsystem Changes:
- devres handling for component drivers (Lucas)
- Backmege drm-next to allow cross dependent change with i915
- GPU SVM and Xe SVM implementation (Matthew Brost)
Core Changes:
Driver Changes:
- Fixes to userptr and missing validations (Matthew Auld, Thomas
Hellström, Matthew Brost)
- devcoredump typos and error handling improvement (Shuicheng)
- Allow oa_exponent value of 0 (Umesh)
- Finish moving device probe to devm (Lucas)
- Fix race between submission restart and scheduled being freed (Tejas)
- Fix counter overflows in gt_stats (Francois)
- Refactor and add missing workarounds and tunings for pre-Xe2 platforms
(Aradhya, Tvrtko)
- Fix PXP locks interaction with exec queues being killed (Daniele)
- Eliminate TIMESTAMP_OVERRIDE from xe (Matt Roper)
- Change xe_gen_wa_oob to allow building on MacOS (Daniel Gomez)
- New workarounds for Panther Lake (Tejas)
- Fix VF resume errors (Satyanarayana)
- Fix workaround infra skipping some workarounds dependent on engine
initialization (Tvrtko)
- Improve per-IP descriptors (Gustavo)
- Add more error injections to probe sequence (Francois)
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Merge tag 'drm-xe-next-2025-03-07' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-next
UAPI Changes:
- Expose per-engine activity via perf pmu (Riana, Lucas, Umesh)
- Add support for EU stall sampling (Harish, Ashutosh)
- Allow userspace to provide low latency hint for submission (Tejas)
- GPU SVM and Xe SVM implementation (Matthew Brost)
Cross-subsystem Changes:
- devres handling for component drivers (Lucas)
- Backmege drm-next to allow cross dependent change with i915
- GPU SVM and Xe SVM implementation (Matthew Brost)
Core Changes:
Driver Changes:
- Fixes to userptr and missing validations (Matthew Auld, Thomas
Hellström, Matthew Brost)
- devcoredump typos and error handling improvement (Shuicheng)
- Allow oa_exponent value of 0 (Umesh)
- Finish moving device probe to devm (Lucas)
- Fix race between submission restart and scheduled being freed (Tejas)
- Fix counter overflows in gt_stats (Francois)
- Refactor and add missing workarounds and tunings for pre-Xe2 platforms
(Aradhya, Tvrtko)
- Fix PXP locks interaction with exec queues being killed (Daniele)
- Eliminate TIMESTAMP_OVERRIDE from xe (Matt Roper)
- Change xe_gen_wa_oob to allow building on MacOS (Daniel Gomez)
- New workarounds for Panther Lake (Tejas)
- Fix VF resume errors (Satyanarayana)
- Fix workaround infra skipping some workarounds dependent on engine
initialization (Tvrtko)
- Improve per-IP descriptors (Gustavo)
- Add more error injections to probe sequence (Francois)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ilc5jvtyaoyi6woyhght5a6sw5jcluiojjueorcyxbynrcpcjp@mw2mi6rd6a7l
|
||
|
Greg Kroah-Hartman
|
993a47bd7b |
Linux 6.14-rc6
-----BEGIN PGP SIGNATURE----- iQFSBAABCAA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAmfOKBUeHHRvcnZhbGRz QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiG1aQH/iC+Oyij4VxAjBek BOXIT/p6CwlIXb8ObiWWcRjDPizlcxb3RaV8J2RO+IqaQ2wltxpFANq2G7Re2FPm SNcEpIURAOVcxHGedcfFA91srO5F4FzNTO8LVp7MIbcgMYy3pdk+dbZmi6A691R+ t9pb74m+MAnF1o/MUx7pUlhAT/4ymuuR0F7WCSg4h0Xwe5m0nlJY89kJBC7PCjyd n3mdhsz3rDSLmt/z/T7HGD89r8sYSvm9cOKtL3ELgGTrm7boQV8ii9Y9w04DI8PQ JmIernugcCxmhH36mVUAHgJf2+/T388xFUh/D5+skeUOUZpaJZG866rnb32WpsHc eWLFUeg= =Wypt -----END PGP SIGNATURE----- Merge 6.14-rc6 into driver-core-next We need the driver core fix in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
||
|
NeilBrown
|
c54b386969
|
VFS: Change vfs_mkdir() to return the dentry.
vfs_mkdir() does not guarantee to leave the child dentry hashed or make it positive on success, and in many such cases the filesystem had to use a different dentry which it can now return. This patch changes vfs_mkdir() to return the dentry provided by the filesystems which is hashed and positive when provided. This reduces the number of cases where the resulting dentry is not positive to a handful which don't deserve extra efforts. The only callers of vfs_mkdir() which are interested in the resulting inode are in-kernel filesystem clients: cachefiles, nfsd, smb/server. The only filesystems that don't reliably provide the inode are: - kernfs, tracefs which these clients are unlikely to be interested in - cifs in some configurations would need to do a lookup to find the created inode, but doesn't. cifs cannot be exported via NFS, is unlikely to be used by cachefiles, and smb/server only has a soft requirement for the inode, so this is unlikely to be a problem in practice. - hostfs, nfs, cifs may need to do a lookup (rarely for NFS) and it is possible for a race to make that lookup fail. Actual failure is unlikely and providing callers handle negative dentries graceful they will fail-safe. So this patch removes the lookup code in nfsd and smb/server and adjusts them to fail safe if a negative dentry is provided: - cache-files already fails safe by restarting the task from the top - it still does with this change, though it no longer calls cachefiles_put_directory() as that will crash if the dentry is negative. - nfsd reports "Server-fault" which it what it used to do if the lookup failed. This will never happen on any file-systems that it can actually export, so this is of no consequence. I removed the fh_update() call as that is not needed and out-of-place. A subsequent nfsd_create_setattr() call will call fh_update() when needed. - smb/server only wants the inode to call ksmbd_smb_inherit_owner() which updates ->i_uid (without calling notify_change() or similar) which can be safely skipping on cifs (I hope). If a different dentry is returned, the first one is put. If necessary the fact that it is new can be determined by comparing pointers. A new dentry will certainly have a new pointer (as the old is put after the new is obtained). Similarly if an error is returned (via ERR_PTR()) the original dentry is put. Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: NeilBrown <neilb@suse.de> Link: https://lore.kernel.org/r/20250227013949.536172-7-neilb@suse.de Signed-off-by: Christian Brauner <brauner@kernel.org> |
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Rafael J. Wysocki
|
7226386965 |
PM: runtime: Unify error handling during suspend and resume
There is a confusing difference in error handling between rpm_suspend() and rpm_resume() related to the special way in which -EAGAIN and -EBUSY error values are treated by the former. Also, converting -EACCES coming from the callback to I/O error, which it quite likely is not, may confuse runtime PM users. To address the above, modify rpm_callback() to convert -EACCES coming from the driver to -EAGAIN and to set power.runtime_error only if the return value is not -EAGAIN or -EBUSY. This will cause the error handling in rpm_resume() and rpm_suspend() to work consistently, so drop the no longer needed -EAGAIN or -EBUSY special case from the latter and make it retry autosuspend if power.runtime_error is unset. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://patch.msgid.link/12620037.O9o76ZdvQC@rjwysocki.net |
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Rafael J. Wysocki
|
628ccd8052 |
PM: sleep: Rearrange dpm_async_fn() and async state clearing
In preparation for subsequent changes, move the power.completion reinitialization along with clearing power.work_in_progress into a separate function called dpm_clear_async_state() and rearrange dpm_async_fn() to get rid of unnecessary indentation. No intentional functional impact. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://patch.msgid.link/8494650.T7Z3S40VBb@rjwysocki.net |
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Rafael J. Wysocki
|
3038b22bc0 |
PM: sleep: Rename power.async_in_progress to power.work_in_progress
Rename the async_in_progress field in struct dev_pm_info to work_in_progress as after subsequent changes it will mean work in general rather than just async work. No functional impact. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://patch.msgid.link/3338693.aeNJFYEL58@rjwysocki.net |
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Rafael J. Wysocki
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a84c2a885b |
PM: core: Tweak pm_runtime_block_if_disabled() return value
Modify pm_runtime_block_if_disabled() to return true when runtime PM is disabled for the device, regardless of the power.last_status value. This effectively prevents "smart suspend" from being enabled for devices with runtime PM disabled in device_prepare(), even transiently, so update the related comment in that function accordingly. If a device has runtime PM disabled in device_prepare(), it is not actually known whether or not runtime PM will be enabled for that device going forward, so it is more appropriate to postpone the "smart suspend" optimization for the device in the given system suspend-resume cycle than to enable it and get confused going forward. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://patch.msgid.link/13718674.uLZWGnKmhe@rjwysocki.net |
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Rafael J. Wysocki
|
1476bb20ee |
PM: runtime: Convert pm_runtime_blocked() to static inline
The comment in pm_runtime_blocked() is acutally wrong: power.last_status is not a bit field. Its data type is an enum and so one can reasonably assume that partial updates of it will not be observed. Accordingly, pm_runtime_blocked() can be converted to a static inline function and the related locking overhead can be eliminated, so long as it is only used in system suspend/resume code paths because power.last_status is not expected to be updated concurrently while that code is running. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://patch.msgid.link/1923449.tdWV9SEqCh@rjwysocki.net |
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Rafael J. Wysocki
|
cb88c229fe |
PM: sleep: Update power.smart_suspend under PM spinlock
Put the update of the power.smart_suspend device flag under the PM spinlock of the device in case multiple bit fields in struct dev_pm_info occupy one memory location which needs to be updated via RMW every time any of these bit fields is updated. The lock in question is already held around the power.direct_complete flag update in device_prepare() for the same reason, so this change does not add locking-related overhead to the code. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://patch.msgid.link/2368159.ElGaqSPkdT@rjwysocki.net |
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Rafael J. Wysocki
|
eeb87d17ac |
PM: sleep: Adjust check before setting power.must_resume
The check before setting power.must_resume in device_suspend_noirq()
does not take power.child_count into account, but it should do that, so
use pm_runtime_need_not_resume() in it for this purpose and adjust the
comment next to it accordingly.
Fixes:
|
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Rafael J. Wysocki
|
d2677d57d4 |
PM: runtime: Drop status check from pm_runtime_force_resume()
Since pm_runtime_force_resume() requires pm_runtime_force_suspend() to be called before it on the same device, the runtime PM status of the device is RPM_SUSPENDED when it is called unless the device's runtime PM status is changed somewhere else in the meantime. However, even if that happens, the power.needs_force_resume check is still required to pass and that flag is only set by pm_runtime_force_suspend() once and it is cleared at the end of pm_runtime_force_resume(), so it cannot be taken into account twice in a row. According to the above, the pm_runtime_status_suspended(dev) check in pm_runtime_force_resume() is redundant, so drop it. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://patch.msgid.link/2309120.iZASKD2KPV@rjwysocki.net |
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|
Xu Yang
|
e8195f0630 |
PM: sleep: Suppress sleeping parent warning in special case
Currently, if power.no_callbacks is set, device_prepare() will also set
power.direct_complete for the device. If power.direct_complete is set
in device_resume(), the clearing of power.is_prepared will be skipped
and if new children appear under the device at that point, a warning
will be printed.
After commit (
|
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Rafael J. Wysocki
|
520a552f19 |
PM: sleep: Avoid unnecessary checks in device_prepare_smart_suspend()
Add an optimization (on top of previous changes) to avoid calling pm_runtime_blocked(), which involves acquiring the device's PM spinlock, for devices with no PM callbacks and runtime PM "blocked". Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://patch.msgid.link/2978873.e9J7NaK4W3@rjwysocki.net |
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Herve Codina
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3b62449da4 |
driver core: Introduce device_{add,remove}_of_node()
An of_node can be set to a device using device_set_node(), which does not prevent any of_node and/or fwnode overwrites. When adding an of_node on an already present device, the following operations need to be done: - Attach the of_node only if no of_node is already attached - Attach the of_node as a fwnode if no fwnode were already attached This is the purpose of device_add_of_node(). device_remove_of_node() reverts the operations done by device_add_of_node(). Link: https://lore.kernel.org/r/20250224141356.36325-2-herve.codina@bootlin.com Signed-off-by: Herve Codina <herve.codina@bootlin.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Lucas De Marchi
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0410c61215 |
Merge drm/drm-next into drm-xe-next
Sync to fix conlicts between drm-xe-next and drm-intel-next. Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com> |
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Greg Kroah-Hartman
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21b0dc55be |
driver core: faux: only create the device if probe() succeeds
It's really hard to know if a faux device properly passes the callback to probe() without having to poke around in the faux_device structure and then clean up. Instead of having to have every user of the api do this logic, just do it in the faux device core itself. This makes the use of a custom probe() callback for a faux device much simpler overall. Suggested-by: Kurt Borja <kuurtb@gmail.com> Cc: Rafael J. Wysocki <rafael@kernel.org> Reviewed-by: Kurt Borja <kuurtb@gmail.com> Reviewed-by: Danilo Krummrich <dakr@kernel.org> Link: https://lore.kernel.org/r/2025022545-unroasted-common-fa0e@gregkh Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Heiko Stuebner
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a6ba2dad0a |
drivers: base: component: add function to query the bound status
The component helpers already expose the bound status in debugfs, but at times it might be necessary to also check that state in the kernel and act differently depending on the result. For example the shutdown handler of a drm-driver might need to stop a whole output pipeline if the drm device is up and running, but may run into problems if that drm-device has never been set up before, for example because the binding deferred. So add a little helper that returns the bound status for a componet device. Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Heiko Stuebner <heiko@sntech.de> Link: https://patchwork.freedesktop.org/patch/msgid/20250220234141.2788785-2-heiko@sntech.de |
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Charles Keepax
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fd80df352b
|
regcache: Add support for sorting defaults arrays
The defaults array in regcache must be sorted into ascending register address order, because binary search is used to locate values in the array. Add a helper to sort the register defaults array which can be useful for systems that dynamically create a defaults array based on external information. Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.dev> Link: https://patch.msgid.link/20250217140159.2288784-2-ckeepax@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org> |
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Christian Brauner
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71628584df
|
Merge patch series "prep patches for my mkdir series"
NeilBrown <neilb@suse.de> says: These two patches are cleanup are dependencies for my mkdir changes and subsequence directory locking changes. * patches from https://lore.kernel.org/r/20250226062135.2043651-1-neilb@suse.de: (2 commits) nfsd: drop fh_update() from S_IFDIR branch of nfsd_create_locked() nfs/vfs: discard d_exact_alias() Link: https://lore.kernel.org/r/20250226062135.2043651-1-neilb@suse.de Signed-off-by: Christian Brauner <brauner@kernel.org> |
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Dave Jiang
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84b25926fa |
acpi: numa: Add support to enumerate and store extended linear address mode
Store the address mode as part of the cache attriutes. Export the mode attribute to sysfs as all other cache attributes. Link: https://lore.kernel.org/linux-cxl/668333b17e4b2_5639294fd@dwillia2-xfh.jf.intel.com.notmuch/ Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: Li Ming <ming.li@zohomail.com> Reviewed-by: Alison Schofield <alison.schofield@intel.com> Link: https://patch.msgid.link/20250226162224.3633792-2-dave.jiang@intel.com Signed-off-by: Dave Jiang <dave.jiang@intel.com> |
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Dr. David Alan Gilbert
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7ebd85022c |
PM: clk: remove unused of_pm_clk_add_clk()
The last use of of_pm_clk_add_clk() was removed by 2019's
commit
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Lucas De Marchi
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2babfdfe2e |
drivers: base: component: Add debug message for unbind
Like when binding component, add a debug message to the unbinding case to make it easy to track the lifecycle. This also includes the component pointer since that is used to open a group in devres, making it easier to track the resources. Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Reviewed-by: Tejas Upadhyay <tejas.upadhyay@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250222001051.3012936-4-lucas.demarchi@intel.com Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com> |
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Lucas De Marchi
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96d01ef3b1 |
drivers: base: devres: Fix find_group() documentation
It returns the last open group, not the last group. Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250222001051.3012936-3-lucas.demarchi@intel.com Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com> |
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Lucas De Marchi
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8e1ddfada4 |
drivers: base: devres: Allow to release group on device release
When releasing a device, if the release action causes a group to be released, a warning is emitted because it can't find the group. This happens because devres_release_all() moves the entire list to a todo list and also move the group markers. Considering r* normal resource nodes and g1 a group resource node: g1 -----------. v v r1 -> r2 -> g1[0] -> r3-> g[1] -> r4 After devres_release_all(), dev->devres_head becomes empty and the todo list it iterates on becomes: g1 v r1 -> r2 -> r3-> r4 -> g1[0] When a call to component_del() is made and takes down the aggregate device, a warning like this happen: RIP: 0010:devres_release_group+0x362/0x530 ... Call Trace: <TASK> component_unbind+0x156/0x380 component_unbind_all+0x1d0/0x270 mei_component_master_unbind+0x28/0x80 [mei_hdcp] take_down_aggregate_device+0xc1/0x160 component_del+0x1c6/0x3e0 intel_hdcp_component_fini+0xf1/0x170 [xe] xe_display_fini+0x1e/0x40 [xe] Because the devres group corresponding to the hdcp component cannot be found. Just ignore this corner case: if the dev->devres_head is empty and the caller is trying to remove a group, it's likely in the process of device cleanup so just ignore it instead of warning. Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250222001051.3012936-2-lucas.demarchi@intel.com Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com> |
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Thorsten Blum
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1d2d45b627 |
driver core: location: Use str_yes_no() helper function
Remove hard-coded strings by using the str_yes_no() helper function. Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev> Link: https://lore.kernel.org/r/20250211132409.700073-2-thorsten.blum@linux.dev Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Lucas De Marchi
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177cbd5249 |
drivers: base: component: Allow more space for device name
Some drivers use <BDF>-<UUID> as the aggregate device name which uses more than 20 chars, causing the status not to be aligned correctly. Example for mei_gsc_proxy on LNL: Before: aggregate_device name status ------------------------------------------------------------- 0000:00:16.0-0f73db04-97ab-4125-b893-e904ad0d5464 bound After: aggregate_device name status ----------------------------------------------------------------------- 0000:00:16.0-0f73db04-97ab-4125-b893-e904ad0d5464 bound Give it 10 more chars for proper alignment. Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com> Link: https://lore.kernel.org/r/20250205205851.2355820-2-lucas.demarchi@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Bharadwaj Raju
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6fb1ee255e |
drivers/base/bus.c: fix spelling of "subsystem"
Fix spelling, "subystem" -> "subsystem" Signed-off-by: Bharadwaj Raju <bharadwaj.raju777@gmail.com> Link: https://lore.kernel.org/r/20250203220312.1052986-1-bharadwaj.raju777@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Luca Ceresoli
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78eb41f518 |
drivers: core: fix device leak in __fw_devlink_relax_cycles()
Commit |
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NeilBrown
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1c3cb50b58
|
VFS: change kern_path_locked() and user_path_locked_at() to never return negative dentry
No callers of kern_path_locked() or user_path_locked_at() want a
negative dentry. So change them to return -ENOENT instead. This
simplifies callers.
This results in a subtle change to bcachefs in that an ioctl will now
return -ENOENT in preference to -EXDEV. I believe this restores the
behaviour to what it was prior to
Commit
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Rafael J. Wysocki
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bca84a7b93 |
PM: sleep: Use DPM_FLAG_SMART_SUSPEND conditionally
A recent discussion has revealed that using DPM_FLAG_SMART_SUSPEND unconditionally is generally problematic because it may lead to situations in which the device's runtime PM information is internally inconsistent or does not reflect its real state [1]. For this reason, change the handling of DPM_FLAG_SMART_SUSPEND so that it is only taken into account if it is consistently set by the drivers of all devices having any PM callbacks throughout dependency graphs in accordance with the following rules: - The "smart suspend" feature is only enabled for devices whose drivers ask for it (that is, set DPM_FLAG_SMART_SUSPEND) and for devices without PM callbacks unless they have never had runtime PM enabled. - The "smart suspend" feature is not enabled for a device if it has not been enabled for the device's parent unless the parent does not take children into account or it has never had runtime PM enabled. - The "smart suspend" feature is not enabled for a device if it has not been enabled for one of the device's suppliers taking runtime PM into account unless that supplier has never had runtime PM enabled. Namely, introduce a new device PM flag called smart_suspend that is only set if the above conditions are met and update all DPM_FLAG_SMART_SUSPEND users to check power.smart_suspend instead of directly checking the latter. At the same time, drop the power.set_active flage introduced recently in commit |
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Rafael J. Wysocki
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758cc55ce3 |
PM: runtime: Introduce pm_runtime_blocked()
Introduce a new helper function called pm_runtime_blocked() for checking the power.last_status value indicating whether or not enabling runtime PM for the given device has been blocked (which happens in the "prepare" phase of system-wide suspend if runtime PM is disabled for the given device at that point). Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://patch.msgid.link/4632087.LvFx2qVVIh@rjwysocki.net |
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Rafael J. Wysocki
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3e5eee147b |
PM: Block enabling of runtime PM during system suspend
If device_prepare() runs on a device that has never had runtime PM enabled so far, it may reasonably assume that runtime PM will not be enabled for that device during the system suspend-resume cycle currently in progress, but this has never been guaranteed. To verify this assumption, make device_prepare() arrange for triggering a device warning accompanied by a call trace dump if runtime PM is enabled for such a device after it has returned. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://patch.msgid.link/6131109.lOV4Wx5bFT@rjwysocki.net |
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Rafael J. Wysocki
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258e231dc2 |
PM: Rearrange documentation related to __pm_runtime_disable()
There are only two callers of __pm_runtime_disable(), one of which is device_suspend_late() and the other is pm_runtime_disable() that has its own kerneldoc comment and there are no plans to add any more of them. Since they use different values of the __pm_runtime_disable() second parameter, the actual code behavior is different in each case, but it is all documented in the __pm_runtime_disable() kerneldoc comment which is not particularly straightforward. For this reason, move the information from the __pm_runtime_disable() kerneldoc comment to the pm_runtime_disable() one and into a separate comment in device_suspend_late() and remove the __pm_runtime_disable() kerneldoc comment altogether. No functional impact. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://patch.msgid.link/12617588.O9o76ZdvQC@rjwysocki.net |
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Nam Cao
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efad91a983 |
PM: runtime: Switch to use hrtimer_setup()
hrtimer_setup() takes the callback function pointer as argument and initializes the timer completely. Replace hrtimer_init() and the open coded initialization of hrtimer::function with the new setup mechanism. Patch was created by using Coccinelle. Signed-off-by: Nam Cao <namcao@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Rafael J. Wysocki <rafael@kernel.org> Link: https://lore.kernel.org/all/8d1ce108b043896733ce08d3deea6e84941d499b.1738746821.git.namcao@linutronix.de |
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Ionela Voinescu
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004b500a90 |
arch_topology: init capacity_freq_ref to 0
It's useful to have capacity_freq_ref initialized to 0 for users of arch_scale_freq_ref() to detect when capacity_freq_ref was not yet set. The only scenario affected by this change in the init value is when a cpufreq driver is never loaded. As a result, the only setter of a cpu scale factor remains the call of topology_normalize_cpu_scale() from parse_dt_topology(). There we cannot use the value 0 of capacity_freq_ref so we have to compensate for its uninitialized state. Signed-off-by: Ionela Voinescu <ionela.voinescu@arm.com> Signed-off-by: Beata Michalska <beata.michalska@arm.com> Reviewed-by: Vincent Guittot <vincent.guittot@linaro.org> Reviewed-by: Sudeep Holla <sudeep.holla@arm.com> Link: https://lore.kernel.org/r/20240827154818.1195849-1-ionela.voinescu@arm.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> |
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Linus Torvalds
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ae5fa8ce7e |
Driver core api addition for 6.14-rc3
Here is a driver core new api for 6.14-rc3 that is being added to allow platform devices from stop being abused. It adds a new "faux_device" structure and bus and api to allow almost a straight or simpler conversion from platform devices that were not really a platform device. It also comes with a binding for rust, with an example driver in rust showing how it's used. I'm adding this now so that the patches that convert the different drivers and subsystems can all start flowing into linux-next now through their different development trees, in time for 6.15-rc1. We have a number that are already reviewed and tested, but adding those conversions now doesn't seem right. For now, no one is using this, and it passes all build tests from 0-day and linux-next, so all should be good. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCZ7H+sQ8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+yljfwCfdP8AvZeIdx89cqS0djspBSFLw1MAoIpq7Pbi 6BY+VOuDSZNdBKXFLR/x =2qRL -----END PGP SIGNATURE----- Merge tag 'driver-core-6.14-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core api addition from Greg KH: "Here is a driver core new api for 6.14-rc3 that is being added to allow platform devices from stop being abused. It adds a new 'faux_device' structure and bus and api to allow almost a straight or simpler conversion from platform devices that were not really a platform device. It also comes with a binding for rust, with an example driver in rust showing how it's used. I'm adding this now so that the patches that convert the different drivers and subsystems can all start flowing into linux-next now through their different development trees, in time for 6.15-rc1. We have a number that are already reviewed and tested, but adding those conversions now doesn't seem right. For now, no one is using this, and it passes all build tests from 0-day and linux-next, so all should be good" * tag 'driver-core-6.14-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: rust/kernel: Add faux device bindings driver core: add a faux bus for use when a simple device/bus is needed |
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Linus Torvalds
|
f9af8e7718 |
regmap: Fix for v6.14
A simple fix for memory leaks when deallocating regmap-irq controllers. -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAmeuQSAACgkQJNaLcl1U h9Aeigf+Jj4+NAOolq1sE86GSoTuupAw418f+a1Yy1TzCrKryyRNvEF8I4UFvxHs uBEysvLGSa4fMFkDzCO0DlLtv7exmCCHuhKw2Vjy+icT5iichc6PE5ylas47bx4/ FrSm5O2VEzWIIBzQrStSkr0WJ8Paqnx3OLsJpdD/keqq7bRhYGyCoSZ6o9suyerr zh/g+pOy+6nl3CuT2QNnCXLlzL04xfoIqHeTVOFFMwDw76NaxdL2Feb+mk40glqA PUqggzzDLmxThmsh4LXGaos/ljmaWtt8/vUkl249o7EU9PMqZKSlDrKXFWY9I8OB Y4P94DmhLuqx1wSBKFWcQDlkNqAjBQ== =qxFK -----END PGP SIGNATURE----- Merge tag 'regmap-fix-v6.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap Pull regmap fix from Mark Brown: "A simple fix for memory leaks when deallocating regmap-irq controllers" * tag 'regmap-fix-v6.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap: regmap-irq: Add missing kfree() |
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Greg Kroah-Hartman
|
35fa2d88ca |
driver core: add a faux bus for use when a simple device/bus is needed
Many drivers abuse the platform driver/bus system as it provides a simple way to create and bind a device to a driver-specific set of probe/release functions. Instead of doing that, and wasting all of the memory associated with a platform device, here is a "faux" bus that can be used instead. Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: Danilo Krummrich <dakr@kernel.org> Reviewed-by: Lyude Paul <lyude@redhat.com> Reviewed-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Reviewed-by: Zijun Hu <quic_zijuhu@quicinc.com> Link: https://lore.kernel.org/r/2025021026-atlantic-gibberish-3f0c@gregkh Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Rafael J. Wysocki
|
7585946243 |
PM: sleep: core: Restrict power.set_active propagation
Commit |
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Andy Shevchenko
|
153dbf4ada
|
regmap: irq: Use one way of setting all bits in the register
Currently there are two ways of how we represent all bits set, i.e. UINT_MAX and GENMASK(31, 0). Use the former as the single way of doing that, which is crystal clear on how we fill the unsigned int value. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://patch.msgid.link/20250206191644.1132869-1-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org> |
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Eric Sandeen
|
cb0e0a8bf4
|
devtmpfs: replace ->mount with ->get_tree in public instance
To finalize mount API conversion, remove the ->mount op from the public instance in favor of ->get_tree etc. Copy most ops from the underlying ops vector (whether it's shmem or ramfs) and substitute our own ->get_tree which simply takes an extra reference on the existing internal mount as before. Thanks to Al for the fs_context_for_reconfigure() idea. Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Neil Brown <neilb@suse.de> Signed-off-by: Eric Sandeen <sandeen@redhat.com> Link: https://lore.kernel.org/r/20250205213931.74614-4-sandeen@redhat.com Signed-off-by: Christian Brauner <brauner@kernel.org> |
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Jiasheng Jiang
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32ffed055d
|
regmap-irq: Add missing kfree()
Add kfree() for "d->main_status_buf" to the error-handling path to prevent
a memory leak.
Fixes:
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Christophe JAILLET
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995cf0e014
|
regmap: Reorder 'struct regmap'
On a x86_64, with configured with allmodconfig, pahole states that the regmap structure is: /* size: 1048, cachelines: 17, members: 78 */ /* sum members: 1006, holes: 9, sum holes: 35 */ /* padding: 7 */ /* member types with holes: 2, total: 2 */ /* last cacheline: 24 bytes */ So, when such a struct is allocated, 2048 bytes are allocated, with most of this space being wasted. Move a few bools so that the size is reduced to 1024. After this change, pahole gives: /* size: 1024, cachelines: 16, members: 78 */ /* sum members: 1006, holes: 6, sum holes: 18 */ /* member types with holes: 2, total: 2 */ Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: https://patch.msgid.link/f01f900d15633d5cda5f27763723acb307c0d22f.1737725820.git.christophe.jaillet@wanadoo.fr Signed-off-by: Mark Brown <broonie@kernel.org> |
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Linus Torvalds
|
1b5f3c51fb |
RISC-V Patches for the 6.14 Merge Window, Part 1
* The PH1520 pinctrl and dwmac drivers are enabeled in defconfig. * A redundant AQRL barrier has been removed from the futex cmpxchg implementation. * Support for the T-Head vector extensions, which includes exposing these extensions to userspace on systems that implement them. * Some more page table information is now printed on die() and systems that cause PA overflows. -----BEGIN PGP SIGNATURE----- iQJHBAABCAAxFiEEKzw3R0RoQ7JKlDp6LhMZ81+7GIkFAmedHIoTHHBhbG1lckBk YWJiZWx0LmNvbQAKCRAuExnzX7sYievXD/4hdt8h+fMM0I9mmJS096YevRJONdfe Wk7D5q4PBwSHISHahuzfphieBhqPVnYkkEd7Vw6xRrLbUnhA41Fe0uvR52dx5UZd 3LwrDV/kjGTD59x6A2Zo9bSs/qPKJ2WHmHwHM21jY5tvcIB2Lo4dF8HT63OrwVNW DxsujLO0jUw+HEwXPsfmUAZJWOPZuUnatl/9CaLMLwQv5N7yiMuz5oYDzJXTLnNh m3Hv3CCtj1EeQPqDoWzz9nZvmAKOwcblSzz6OAy+xrRk1N0N3QFQPbIaRvkI9OVz +wPHQiyx4KZNeAe0csV0uLQRIiXZV8rkCz5UT65s3Bfy3vukvzz+1VBdNnCqiP8Q RpCTcYw62Cr6BWnvyTh+s9bhHb1ijG043nXd/Ty7ZRPCNLKHY6oL1CZ0pgqbTwPs D2U2ZTZFTc35mPrU6QMfbTiUVWCU2XagFhI27Dgj3xh9mkBOQCHwk2Mrzn7uS4iz xGNnrjRnKtuwBrvD68JzxCkEi8INFn2ifbVr44VZrOdTM7XtODGAYrBohQtV62kU 2L+q8DoHYis+0xFbR1wdrY1mRZoe45boUFgwnOpmoBr9ULe584sL+526y7IkkEHu /9hmLPtLg7nyoR/rO1j1Sfg4Eqdwg5HY1TKNfagJZAdu23EDRwrcW1PD0P6vtDv8 j4og8MmL7dTt3A== =HbAQ -----END PGP SIGNATURE----- Merge tag 'riscv-for-linus-6.14-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux Pull RISC-V updates from Palmer Dabbelt: - The PH1520 pinctrl and dwmac drivers are enabeled in defconfig - A redundant AQRL barrier has been removed from the futex cmpxchg implementation - Support for the T-Head vector extensions, which includes exposing these extensions to userspace on systems that implement them - Some more page table information is now printed on die() and systems that cause PA overflows * tag 'riscv-for-linus-6.14-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: riscv: add a warning when physical memory address overflows riscv/mm/fault: add show_pte() before die() riscv: Add ghostwrite vulnerability selftests: riscv: Support xtheadvector in vector tests selftests: riscv: Fix vector tests riscv: hwprobe: Document thead vendor extensions and xtheadvector extension riscv: hwprobe: Add thead vendor extension probing riscv: vector: Support xtheadvector save/restore riscv: Add xtheadvector instruction definitions riscv: csr: Add CSR encodings for CSR_VXRM/CSR_VXSAT RISC-V: define the elements of the VCSR vector CSR riscv: vector: Use vlenb from DT for thead riscv: Add thead and xtheadvector as a vendor extension riscv: dts: allwinner: Add xtheadvector to the D1/D1s devicetree dt-bindings: cpus: add a thead vlen register length property dt-bindings: riscv: Add xtheadvector ISA extension description RISC-V: Mark riscv_v_init() as __init riscv: defconfig: drop RT_GROUP_SCHED=y riscv/futex: Optimize atomic cmpxchg riscv: defconfig: enable pinctrl and dwmac support for TH1520 |
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Linus Torvalds
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f55b0671e3 |
More power management updates for 6.14-rc1
- Add missing error handling for syscore_suspend() to the hibernation
core code (Wentao Liang).
- Revert a commit that added unused macros (Andy Shevchenko).
- Synchronize the runtime PM status of devices that were runtime-
suspended before a system-wide suspend and need to be resumed during
the subsequent system-wide resume transition (Rafael Wysocki).
- Clean up the teo cpuidle governor and make the handling of short idle
intervals in it consistent regardless of the properties of idle
states supplied by the cpuidle driver (Rafael Wysocki).
- Fix some boost-related issues in cpufreq (Lifeng Zheng).
- Fix build issues in the s3c64xx and airoha cpufreq drivers (Viresh
Kumar).
- Remove unconditional binding of schedutil governor kthreads to the
affected CPUs if the cpufreq driver indicates that updates can happen
from any CPU (Christian Loehle).
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Merge tag 'pm-6.14-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more power management updates from Rafael Wysocki:
"These are mostly fixes on top of the previously merged power
management material with the addition of some teo cpuidle governor
updates, some of which may also be regarded as fixes:
- Add missing error handling for syscore_suspend() to the hibernation
core code (Wentao Liang)
- Revert a commit that added unused macros (Andy Shevchenko)
- Synchronize the runtime PM status of devices that were runtime-
suspended before a system-wide suspend and need to be resumed
during the subsequent system-wide resume transition (Rafael
Wysocki)
- Clean up the teo cpuidle governor and make the handling of short
idle intervals in it consistent regardless of the properties of
idle states supplied by the cpuidle driver (Rafael Wysocki)
- Fix some boost-related issues in cpufreq (Lifeng Zheng)
- Fix build issues in the s3c64xx and airoha cpufreq drivers (Viresh
Kumar)
- Remove unconditional binding of schedutil governor kthreads to the
affected CPUs if the cpufreq driver indicates that updates can
happen from any CPU (Christian Loehle)"
* tag 'pm-6.14-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PM: sleep: core: Synchronize runtime PM status of parents and children
cpufreq: airoha: Depends on OF
PM: Revert "Add EXPORT macros for exporting PM functions"
PM: hibernate: Add error handling for syscore_suspend()
cpufreq/schedutil: Only bind threads if needed
cpufreq: ACPI: Remove set_boost in acpi_cpufreq_cpu_init()
cpufreq: CPPC: Fix wrong max_freq in policy initialization
cpufreq: Introduce a more generic way to set default per-policy boost flag
cpufreq: Fix re-boost issue after hotplugging a CPU
cpufreq: s3c64xx: Fix compilation warning
cpuidle: teo: Skip sleep length computation for low latency constraints
cpuidle: teo: Replace time_span_ns with a flag
cpuidle: teo: Simplify handling of total events count
cpuidle: teo: Skip getting the sleep length if wakeups are very frequent
cpuidle: teo: Simplify counting events used for tick management
cpuidle: teo: Clarify two code comments
cpuidle: teo: Drop local variable prev_intercept_idx
cpuidle: teo: Combine candidate state index checks against 0
cpuidle: teo: Reorder candidate state index checks
cpuidle: teo: Rearrange idle state lookup code
|
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Linus Torvalds
|
af13ff1c33 |
Summary:
All ctl_table declared outside of functions and that remain unmodified after initialization are const qualified. This prevents unintended modifications to proc_handler function pointers by placing them in the .rodata section. This is a continuation of the tree-wide effort started a few releases ago with the constification of the ctl_table struct arguments in the sysctl API done in |
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Rafael J. Wysocki
|
3775fc538f |
PM: sleep: core: Synchronize runtime PM status of parents and children
Commit |
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Linus Torvalds
|
2ab002c755 |
Driver core and debugfs updates
Here is the big set of driver core and debugfs updates for 6.14-rc1.
It's coming late in the merge cycle as there are a number of merge
conflicts with your tree now, and I wanted to make sure they were
working properly. To resolve them, look in linux-next, and I will send
the "fixup" patch as a response to the pull request.
Included in here is a bunch of driver core, PCI, OF, and platform rust
bindings (all acked by the different subsystem maintainers), hence the
merge conflict with the rust tree, and some driver core api updates to
mark things as const, which will also require some fixups due to new
stuff coming in through other trees in this merge window.
There are also a bunch of debugfs updates from Al, and there is at least
one user that does have a regression with these, but Al is working on
tracking down the fix for it. In my use (and everyone else's linux-next
use), it does not seem like a big issue at the moment.
Here's a short list of the things in here:
- driver core bindings for PCI, platform, OF, and some i/o functions.
We are almost at the "write a real driver in rust" stage now,
depending on what you want to do.
- misc device rust bindings and a sample driver to show how to use
them
- debugfs cleanups in the fs as well as the users of the fs api for
places where drivers got it wrong or were unnecessarily doing things
in complex ways.
- driver core const work, making more of the api take const * for
different parameters to make the rust bindings easier overall.
- other small fixes and updates
All of these have been in linux-next with all of the aforementioned
merge conflicts, and the one debugfs issue, which looks to be resolved
"soon".
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core and debugfs updates from Greg KH:
"Here is the big set of driver core and debugfs updates for 6.14-rc1.
Included in here is a bunch of driver core, PCI, OF, and platform rust
bindings (all acked by the different subsystem maintainers), hence the
merge conflict with the rust tree, and some driver core api updates to
mark things as const, which will also require some fixups due to new
stuff coming in through other trees in this merge window.
There are also a bunch of debugfs updates from Al, and there is at
least one user that does have a regression with these, but Al is
working on tracking down the fix for it. In my use (and everyone
else's linux-next use), it does not seem like a big issue at the
moment.
Here's a short list of the things in here:
- driver core rust bindings for PCI, platform, OF, and some i/o
functions.
We are almost at the "write a real driver in rust" stage now,
depending on what you want to do.
- misc device rust bindings and a sample driver to show how to use
them
- debugfs cleanups in the fs as well as the users of the fs api for
places where drivers got it wrong or were unnecessarily doing
things in complex ways.
- driver core const work, making more of the api take const * for
different parameters to make the rust bindings easier overall.
- other small fixes and updates
All of these have been in linux-next with all of the aforementioned
merge conflicts, and the one debugfs issue, which looks to be resolved
"soon""
* tag 'driver-core-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (95 commits)
rust: device: Use as_char_ptr() to avoid explicit cast
rust: device: Replace CString with CStr in property_present()
devcoredump: Constify 'struct bin_attribute'
devcoredump: Define 'struct bin_attribute' through macro
rust: device: Add property_present()
saner replacement for debugfs_rename()
orangefs-debugfs: don't mess with ->d_name
octeontx2: don't mess with ->d_parent or ->d_parent->d_name
arm_scmi: don't mess with ->d_parent->d_name
slub: don't mess with ->d_name
sof-client-ipc-flood-test: don't mess with ->d_name
qat: don't mess with ->d_name
xhci: don't mess with ->d_iname
mtu3: don't mess wiht ->d_iname
greybus/camera - stop messing with ->d_iname
mediatek: stop messing with ->d_iname
netdevsim: don't embed file_operations into your structs
b43legacy: make use of debugfs_get_aux()
b43: stop embedding struct file_operations into their objects
carl9170: stop embedding file_operations into their objects
...
|
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Joel Granados
|
1751f872cc |
treewide: const qualify ctl_tables where applicable
Add the const qualifier to all the ctl_tables in the tree except for
watchdog_hardlockup_sysctl, memory_allocation_profiling_sysctls,
loadpin_sysctl_table and the ones calling register_net_sysctl (./net,
drivers/inifiniband dirs). These are special cases as they use a
registration function with a non-const qualified ctl_table argument or
modify the arrays before passing them on to the registration function.
Constifying ctl_table structs will prevent the modification of
proc_handler function pointers as the arrays would reside in .rodata.
This is made possible after commit
|
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|
Linus Torvalds
|
9c5968db9e |
The various patchsets are summarized below. Plus of course many
indivudual patches which are described in their changelogs. - "Allocate and free frozen pages" from Matthew Wilcox reorganizes the page allocator so we end up with the ability to allocate and free zero-refcount pages. So that callers (ie, slab) can avoid a refcount inc & dec. - "Support large folios for tmpfs" from Baolin Wang teaches tmpfs to use large folios other than PMD-sized ones. - "Fix mm/rodata_test" from Petr Tesarik performs some maintenance and fixes for this small built-in kernel selftest. - "mas_anode_descend() related cleanup" from Wei Yang tidies up part of the mapletree code. - "mm: fix format issues and param types" from Keren Sun implements a few minor code cleanups. - "simplify split calculation" from Wei Yang provides a few fixes and a test for the mapletree code. - "mm/vma: make more mmap logic userland testable" from Lorenzo Stoakes continues the work of moving vma-related code into the (relatively) new mm/vma.c. - "mm/page_alloc: gfp flags cleanups for alloc_contig_*()" from David Hildenbrand cleans up and rationalizes handling of gfp flags in the page allocator. - "readahead: Reintroduce fix for improper RA window sizing" from Jan Kara is a second attempt at fixing a readahead window sizing issue. It should reduce the amount of unnecessary reading. - "synchronously scan and reclaim empty user PTE pages" from Qi Zheng addresses an issue where "huge" amounts of pte pagetables are accumulated (https://lore.kernel.org/lkml/cover.1718267194.git.zhengqi.arch@bytedance.com/). Qi's series addresses this windup by synchronously freeing PTE memory within the context of madvise(MADV_DONTNEED). - "selftest/mm: Remove warnings found by adding compiler flags" from Muhammad Usama Anjum fixes some build warnings in the selftests code when optional compiler warnings are enabled. - "mm: don't use __GFP_HARDWALL when migrating remote pages" from David Hildenbrand tightens the allocator's observance of __GFP_HARDWALL. - "pkeys kselftests improvements" from Kevin Brodsky implements various fixes and cleanups in the MM selftests code, mainly pertaining to the pkeys tests. - "mm/damon: add sample modules" from SeongJae Park enhances DAMON to estimate application working set size. - "memcg/hugetlb: Rework memcg hugetlb charging" from Joshua Hahn provides some cleanups to memcg's hugetlb charging logic. - "mm/swap_cgroup: remove global swap cgroup lock" from Kairui Song removes the global swap cgroup lock. A speedup of 10% for a tmpfs-based kernel build was demonstrated. - "zram: split page type read/write handling" from Sergey Senozhatsky has several fixes and cleaups for zram in the area of zram_write_page(). A watchdog softlockup warning was eliminated. - "move pagetable_*_dtor() to __tlb_remove_table()" from Kevin Brodsky cleans up the pagetable destructor implementations. A rare use-after-free race is fixed. - "mm/debug: introduce and use VM_WARN_ON_VMG()" from Lorenzo Stoakes simplifies and cleans up the debugging code in the VMA merging logic. - "Account page tables at all levels" from Kevin Brodsky cleans up and regularizes the pagetable ctor/dtor handling. This results in improvements in accounting accuracy. - "mm/damon: replace most damon_callback usages in sysfs with new core functions" from SeongJae Park cleans up and generalizes DAMON's sysfs file interface logic. - "mm/damon: enable page level properties based monitoring" from SeongJae Park increases the amount of information which is presented in response to DAMOS actions. - "mm/damon: remove DAMON debugfs interface" from SeongJae Park removes DAMON's long-deprecated debugfs interfaces. Thus the migration to sysfs is completed. - "mm/hugetlb: Refactor hugetlb allocation resv accounting" from Peter Xu cleans up and generalizes the hugetlb reservation accounting. - "mm: alloc_pages_bulk: small API refactor" from Luiz Capitulino removes a never-used feature of the alloc_pages_bulk() interface. - "mm/damon: extend DAMOS filters for inclusion" from SeongJae Park extends DAMOS filters to support not only exclusion (rejecting), but also inclusion (allowing) behavior. - "Add zpdesc memory descriptor for zswap.zpool" from Alex Shi "introduces a new memory descriptor for zswap.zpool that currently overlaps with struct page for now. This is part of the effort to reduce the size of struct page and to enable dynamic allocation of memory descriptors." - "mm, swap: rework of swap allocator locks" from Kairui Song redoes and simplifies the swap allocator locking. A speedup of 400% was demonstrated for one workload. As was a 35% reduction for kernel build time with swap-on-zram. - "mm: update mips to use do_mmap(), make mmap_region() internal" from Lorenzo Stoakes reworks MIPS's use of mmap_region() so that mmap_region() can be made MM-internal. - "mm/mglru: performance optimizations" from Yu Zhao fixes a few MGLRU regressions and otherwise improves MGLRU performance. - "Docs/mm/damon: add tuning guide and misc updates" from SeongJae Park updates DAMON documentation. - "Cleanup for memfd_create()" from Isaac Manjarres does that thing. - "mm: hugetlb+THP folio and migration cleanups" from David Hildenbrand provides various cleanups in the areas of hugetlb folios, THP folios and migration. - "Uncached buffered IO" from Jens Axboe implements the new RWF_DONTCACHE flag which provides synchronous dropbehind for pagecache reading and writing. To permite userspace to address issues with massive buildup of useless pagecache when reading/writing fast devices. - "selftests/mm: virtual_address_range: Reduce memory" from Thomas Weißschuh fixes and optimizes some of the MM selftests. -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCZ5a+cwAKCRDdBJ7gKXxA jtoyAP9R58oaOKPJuTizEKKXvh/RpMyD6sYcz/uPpnf+cKTZxQEAqfVznfWlw/Lz uC3KRZYhmd5YrxU4o+qjbzp9XWX/xAE= =Ib2s -----END PGP SIGNATURE----- Merge tag 'mm-stable-2025-01-26-14-59' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull MM updates from Andrew Morton: "The various patchsets are summarized below. Plus of course many indivudual patches which are described in their changelogs. - "Allocate and free frozen pages" from Matthew Wilcox reorganizes the page allocator so we end up with the ability to allocate and free zero-refcount pages. So that callers (ie, slab) can avoid a refcount inc & dec - "Support large folios for tmpfs" from Baolin Wang teaches tmpfs to use large folios other than PMD-sized ones - "Fix mm/rodata_test" from Petr Tesarik performs some maintenance and fixes for this small built-in kernel selftest - "mas_anode_descend() related cleanup" from Wei Yang tidies up part of the mapletree code - "mm: fix format issues and param types" from Keren Sun implements a few minor code cleanups - "simplify split calculation" from Wei Yang provides a few fixes and a test for the mapletree code - "mm/vma: make more mmap logic userland testable" from Lorenzo Stoakes continues the work of moving vma-related code into the (relatively) new mm/vma.c - "mm/page_alloc: gfp flags cleanups for alloc_contig_*()" from David Hildenbrand cleans up and rationalizes handling of gfp flags in the page allocator - "readahead: Reintroduce fix for improper RA window sizing" from Jan Kara is a second attempt at fixing a readahead window sizing issue. It should reduce the amount of unnecessary reading - "synchronously scan and reclaim empty user PTE pages" from Qi Zheng addresses an issue where "huge" amounts of pte pagetables are accumulated: https://lore.kernel.org/lkml/cover.1718267194.git.zhengqi.arch@bytedance.com/ Qi's series addresses this windup by synchronously freeing PTE memory within the context of madvise(MADV_DONTNEED) - "selftest/mm: Remove warnings found by adding compiler flags" from Muhammad Usama Anjum fixes some build warnings in the selftests code when optional compiler warnings are enabled - "mm: don't use __GFP_HARDWALL when migrating remote pages" from David Hildenbrand tightens the allocator's observance of __GFP_HARDWALL - "pkeys kselftests improvements" from Kevin Brodsky implements various fixes and cleanups in the MM selftests code, mainly pertaining to the pkeys tests - "mm/damon: add sample modules" from SeongJae Park enhances DAMON to estimate application working set size - "memcg/hugetlb: Rework memcg hugetlb charging" from Joshua Hahn provides some cleanups to memcg's hugetlb charging logic - "mm/swap_cgroup: remove global swap cgroup lock" from Kairui Song removes the global swap cgroup lock. A speedup of 10% for a tmpfs-based kernel build was demonstrated - "zram: split page type read/write handling" from Sergey Senozhatsky has several fixes and cleaups for zram in the area of zram_write_page(). A watchdog softlockup warning was eliminated - "move pagetable_*_dtor() to __tlb_remove_table()" from Kevin Brodsky cleans up the pagetable destructor implementations. A rare use-after-free race is fixed - "mm/debug: introduce and use VM_WARN_ON_VMG()" from Lorenzo Stoakes simplifies and cleans up the debugging code in the VMA merging logic - "Account page tables at all levels" from Kevin Brodsky cleans up and regularizes the pagetable ctor/dtor handling. This results in improvements in accounting accuracy - "mm/damon: replace most damon_callback usages in sysfs with new core functions" from SeongJae Park cleans up and generalizes DAMON's sysfs file interface logic - "mm/damon: enable page level properties based monitoring" from SeongJae Park increases the amount of information which is presented in response to DAMOS actions - "mm/damon: remove DAMON debugfs interface" from SeongJae Park removes DAMON's long-deprecated debugfs interfaces. Thus the migration to sysfs is completed - "mm/hugetlb: Refactor hugetlb allocation resv accounting" from Peter Xu cleans up and generalizes the hugetlb reservation accounting - "mm: alloc_pages_bulk: small API refactor" from Luiz Capitulino removes a never-used feature of the alloc_pages_bulk() interface - "mm/damon: extend DAMOS filters for inclusion" from SeongJae Park extends DAMOS filters to support not only exclusion (rejecting), but also inclusion (allowing) behavior - "Add zpdesc memory descriptor for zswap.zpool" from Alex Shi introduces a new memory descriptor for zswap.zpool that currently overlaps with struct page for now. This is part of the effort to reduce the size of struct page and to enable dynamic allocation of memory descriptors - "mm, swap: rework of swap allocator locks" from Kairui Song redoes and simplifies the swap allocator locking. A speedup of 400% was demonstrated for one workload. As was a 35% reduction for kernel build time with swap-on-zram - "mm: update mips to use do_mmap(), make mmap_region() internal" from Lorenzo Stoakes reworks MIPS's use of mmap_region() so that mmap_region() can be made MM-internal - "mm/mglru: performance optimizations" from Yu Zhao fixes a few MGLRU regressions and otherwise improves MGLRU performance - "Docs/mm/damon: add tuning guide and misc updates" from SeongJae Park updates DAMON documentation - "Cleanup for memfd_create()" from Isaac Manjarres does that thing - "mm: hugetlb+THP folio and migration cleanups" from David Hildenbrand provides various cleanups in the areas of hugetlb folios, THP folios and migration - "Uncached buffered IO" from Jens Axboe implements the new RWF_DONTCACHE flag which provides synchronous dropbehind for pagecache reading and writing. To permite userspace to address issues with massive buildup of useless pagecache when reading/writing fast devices - "selftests/mm: virtual_address_range: Reduce memory" from Thomas Weißschuh fixes and optimizes some of the MM selftests" * tag 'mm-stable-2025-01-26-14-59' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (321 commits) mm/compaction: fix UBSAN shift-out-of-bounds warning s390/mm: add missing ctor/dtor on page table upgrade kasan: sw_tags: use str_on_off() helper in kasan_init_sw_tags() tools: add VM_WARN_ON_VMG definition mm/damon/core: use str_high_low() helper in damos_wmark_wait_us() seqlock: add missing parameter documentation for raw_seqcount_try_begin() mm/page-writeback: consolidate wb_thresh bumping logic into __wb_calc_thresh mm/page_alloc: remove the incorrect and misleading comment zram: remove zcomp_stream_put() from write_incompressible_page() mm: separate move/undo parts from migrate_pages_batch() mm/kfence: use str_write_read() helper in get_access_type() selftests/mm/mkdirty: fix memory leak in test_uffdio_copy() kasan: hw_tags: Use str_on_off() helper in kasan_init_hw_tags() selftests/mm: virtual_address_range: avoid reading from VM_IO mappings selftests/mm: vm_util: split up /proc/self/smaps parsing selftests/mm: virtual_address_range: unmap chunks after validation selftests/mm: virtual_address_range: mmap() without PROT_WRITE selftests/memfd/memfd_test: fix possible NULL pointer dereference mm: add FGP_DONTCACHE folio creation flag mm: call filemap_fdatawrite_range_kick() after IOCB_DONTCACHE issue ... |
||
|
Gregory Price
|
44d46b76c3 |
mm: add build-time option for hotplug memory default online type
Memory hotplug presently auto-onlines memory into a zone the kernel deems
appropriate if CONFIG_MEMORY_HOTPLUG_DEFAULT_ONLINE=y.
The memhp_default_state boot param enables runtime config, but it's not
possible to do this at build-time.
Remove CONFIG_MEMORY_HOTPLUG_DEFAULT_ONLINE, and replace it with
CONFIG_MHP_DEFAULT_ONLINE_TYPE_* choices that sync with the boot param.
Selections:
CONFIG_MHP_DEFAULT_ONLINE_TYPE_OFFLINE
=> mhp_default_online_type = "offline"
Memory will not be onlined automatically.
CONFIG_MHP_DEFAULT_ONLINE_TYPE_ONLINE_AUTO
=> mhp_default_online_type = "online"
Memory will be onlined automatically in a zone deemed.
appropriate by the kernel.
CONFIG_MHP_DEFAULT_ONLINE_TYPE_ONLINE_KERNEL
=> mhp_default_online_type = "online_kernel"
Memory will be onlined automatically.
The zone may allow kernel data (e.g. ZONE_NORMAL).
CONFIG_MHP_DEFAULT_ONLINE_TYPE_ONLINE_MOVABLE
=> mhp_default_online_type = "online_movable"
Memory will be onlined automatically.
The zone will be ZONE_MOVABLE.
Default to CONFIG_MHP_DEFAULT_ONLINE_TYPE_OFFLINE to match the existing
default CONFIG_MEMORY_HOTPLUG_DEFAULT_ONLINE=n behavior.
Existing users of CONFIG_MEMORY_HOTPLUG_DEFAULT_ONLINE=y should use
CONFIG_MHP_DEFAULT_ONLINE_TYPE_ONLINE_AUTO.
[gourry@gourry.net: update KConfig comments]
Link: https://lkml.kernel.org/r/20241226182918.648799-1-gourry@gourry.net
Link: https://lkml.kernel.org/r/20241220210709.300066-1-gourry@gourry.net
Signed-off-by: Gregory Price <gourry@gourry.net>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Huacai Chen <chenhuacai@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: WANG Xuerui <kernel@xen0n.name>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
||
|
Linus Torvalds
|
f345fc7a07 |
Devicetree updates for v6.14:
DT Bindings:
- Add Bindings for QCom QCS615 UFS, QCom IPQ5424 DWC3 USB, NXP imx7d
MIPI DSI, QCom SM8750 PDC, QCom MSM8976 SRAM, QCom ipq6018 temp
sensor, QCom QCS8300 Power Domain Controller, QCom QCS615 Power Domain
Controller, QCom QCS615 APSS, QCom QCS615 qfprom, QCom QCS8300
remoteproc, Mediatek MT6328 PMIC, Allwinner A100 OPP, and NXP iMX35
GPT
- Convert Altera socfpga-system, raspberrypi,bcm2835-power to DT
schema
- Add Siflower vendor prefix
- Cleanup display, interrupt-controller, and UFS binding examples'
indentation
- Document preferred line wrapping (the same as the rest of the kernel)
DT Core:
- Add warning when of_property_read_bool() is used on non-boolean
properties
- Restore keeping bootloader DTB when booting with ACPI. Turns out some
x86 platforms relied on that. Shrug.
- Fix of_find_node_opts_by_path() handling of alias+path+options
- Fix resource bounds checking for empty resources
- A bunch of small fixes/cleanups all over from Zijun Hu
- Cleanups in bin_attribute handling
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Merge tag 'devicetree-for-6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull devicetree updates from Rob Herring:
"DT Bindings:
- Add Bindings for QCom QCS615 UFS, QCom IPQ5424 DWC3 USB, NXP imx7d
MIPI DSI, QCom SM8750 PDC, QCom MSM8976 SRAM, QCom ipq6018 temp
sensor, QCom QCS8300 Power Domain Controller, QCom QCS615 Power
Domain Controller, QCom QCS615 APSS, QCom QCS615 qfprom, QCom
QCS8300 remoteproc, Mediatek MT6328 PMIC, Allwinner A100 OPP, and
NXP iMX35 GPT
- Convert Altera socfpga-system, raspberrypi,bcm2835-power to DT
schema
- Add Siflower vendor prefix
- Cleanup display, interrupt-controller, and UFS binding examples'
indentation
- Document preferred line wrapping (the same as the rest of the
kernel)
DT Core:
- Add warning when of_property_read_bool() is used on non-boolean
properties
- Restore keeping bootloader DTB when booting with ACPI. Turns out
some x86 platforms relied on that. Shrug.
- Fix of_find_node_opts_by_path() handling of alias+path+options
- Fix resource bounds checking for empty resources
- A bunch of small fixes/cleanups all over from Zijun Hu
- Cleanups in bin_attribute handling"
* tag 'devicetree-for-6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (50 commits)
of: address: Fix empty resource handling in __of_address_resource_bounds()
of/fdt: Restore possibility to use both ACPI and FDT from bootloader
docs: dt-bindings: Document preferred line wrapping
dt-bindings: ufs: Correct indentation and style in DTS example
of: Correct element count for two arrays in API of_parse_phandle_with_args_map()
of: reserved-memory: Warn for missing static reserved memory regions
of: Do not expose of_alias_scan() and correct its comments
dt-bindings: ufs: qcom: Add UFS Host Controller for QCS615
dt-bindings: usb: qcom,dwc3: Add IPQ5424 to USB DWC3 bindings
dt-bindings: arm: coresight: Update the pattern of ete node name
of: Warn when of_property_read_bool() is used on non-boolean properties
device property: Split property reading bool and presence test ops
of/fdt: Check fdt_get_mem_rsv() error in early_init_fdt_scan_reserved_mem()
of: reserved-memory: Move an assignment to effective place in __reserved_mem_alloc_size()
of: reserved-memory: Do not make kmemleak ignore freed address
of: reserved-memory: Fix using wrong number of cells to get property 'alignment'
of: Remove a duplicated code block
of: property: Avoiding using uninitialized variable @imaplen in parse_interrupt_map()
of: Correct child specifier used as input of the 2nd nexus node
dt-bindings: interrupt-controller: ti,omap4-wugen-mpu: Add file extension
...
|
||
|
Linus Torvalds
|
603f162a02 |
ACPI updates for 6.14-rc1
- Use usleep_range() instead of msleep() in acpi_os_sleep() to reduce
excessive delays due to timer inaccuracy, mostly affecting system
suspend and resume (Rafael Wysocki).
- Use str_enabled_disabled() string helpers in the ACPI tables parsing
code to make it easier to follow (Sunil V L).
- Update device properties parsing on systems using ACPI so that
data firmware nodes resulting from _DSD evaluation are treated
as available in firmware nodes walks (Sakari Ailus).
- Fix missing guid_t declaration in linux/prmt.h (Robert Richter).
- Update the GHES handling code to follow the global panic= policy
instead of overriding it by force-rebooting the system after a
fatal HW error has been reported (Borislav Petkov).
- Update messages printed by the ACPI battery driver to always
refer to driver extensions as "hooks" to avoid confusion with
similar functionality in the power supply subsystem in the
future (Thomas Weißschuh).
- Fix .probe() error path cleanup in the ACPI fan driver to avoid
memory leaks (Joe Hattori).
- Constify 'struct bin_attribute' in some places in the ACPI subsystem
and mark it as __ro_after_init in one place to prevent binary blob
attributes from being updated (Thomas Weißschuh)
- Add empty stubs for several ACPI-related symbols so that they can be
used when CONFIG_ACPI is unset and use them for removing unnecessary
conditional compilation from the ipu-bridge driver (Ricardo Ribalda).
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Merge tag 'acpi-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI updates from Rafael Wysocki:
"The most significant change here is replacing msleep() in
acpi_os_sleep() with usleep_range() to reduce spurious sleep time due
to timer inaccuracy which may spectacularly reduce the duration of
system suspend and resume transitions on some systems.
All of the other changes fall into the fixes and cleanups category
this time.
Specifics:
- Use usleep_range() instead of msleep() in acpi_os_sleep() to reduce
excessive delays due to timer inaccuracy, mostly affecting system
suspend and resume (Rafael Wysocki)
- Use str_enabled_disabled() string helpers in the ACPI tables
parsing code to make it easier to follow (Sunil V L)
- Update device properties parsing on systems using ACPI so that data
firmware nodes resulting from _DSD evaluation are treated as
available in firmware nodes walks (Sakari Ailus)
- Fix missing guid_t declaration in linux/prmt.h (Robert Richter)
- Update the GHES handling code to follow the global panic= policy
instead of overriding it by force-rebooting the system after a
fatal HW error has been reported (Borislav Petkov)
- Update messages printed by the ACPI battery driver to always refer
to driver extensions as "hooks" to avoid confusion with similar
functionality in the power supply subsystem in the future (Thomas
Weißschuh)
- Fix .probe() error path cleanup in the ACPI fan driver to avoid
memory leaks (Joe Hattori)
- Constify 'struct bin_attribute' in some places in the ACPI
subsystem and mark it as __ro_after_init in one place to prevent
binary blob attributes from being updated (Thomas Weißschuh)
- Add empty stubs for several ACPI-related symbols so that they can
be used when CONFIG_ACPI is unset and use them for removing
unnecessary conditional compilation from the ipu-bridge driver
(Ricardo Ribalda)"
* tag 'acpi-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
APEI: GHES: Have GHES honor the panic= setting
ACPI: PRM: Fix missing guid_t declaration in linux/prmt.h
ACPI: tables: Use string choice helpers
ACPI: property: Consider data nodes as being available
media: ipu-bridge: Remove unneeded conditional compilations
ACPI: bus: implement acpi_device_hid when !ACPI
ACPI: bus: implement for_each_acpi_consumer_dev when !ACPI
ACPI: header: implement acpi_device_handle when !ACPI
ACPI: bus: implement acpi_get_physical_device_location when !ACPI
ACPI: bus: implement for_each_acpi_dev_match when !ACPI
ACPI: bus: change the prototype for acpi_get_physical_device_location
ACPI: fan: cleanup resources in the error path of .probe()
ACPI: battery: Rename extensions to hook in messages
ACPI: OSL: Use usleep_range() in acpi_os_sleep()
ACPI: sysfs: Constify 'struct bin_attribute'
ACPI: BGRT: Constify 'struct bin_attribute'
ACPI: BGRT: Mark bin_attribute as __ro_after_init
|
||
|
Linus Torvalds
|
f4b9d3bf44 |
Power management updates for 6.14-rc1
- Use str_enable_disable()-like helpers in cpufreq (Krzysztof
Kozlowski).
- Extend the Apple cpufreq driver to support more SoCs (Hector Martin,
Nick Chan).
- Add new cpufreq driver for Airoha SoCs (Christian Marangi).
- Fix using cpufreq-dt as module (Andreas Kemnade).
- Minor fixes for Sparc, SCMI, and Qcom cpufreq drivers (Ethan Carter
Edwards, Sibi Sankar, Manivannan Sadhasivam).
- Fix the maximum supported frequency computation in the ACPI cpufreq
driver to avoid relying on unfounded assumptions (Gautham Shenoy).
- Fix an amd-pstate driver regression with preferred core rankings not
being used (Mario Limonciello).
- Fix a precision issue with frequency calculation in the amd-pstate
driver (Naresh Solanki).
- Add ftrace event to the amd-pstate driver for active mode (Mario
Limonciello).
- Set default EPP policy on Ryzen processors in amd-pstate (Mario
Limonciello).
- Clean up the amd-pstate cpufreq driver and optimize it to increase
code reuse (Mario Limonciello, Dhananjay Ugwekar).
- Use CPPC to get scaling factors between HWP performance levels and
frequency in the intel_pstate driver and make it stop using a built
-in scaling factor for Arrow Lake processors (Rafael Wysocki).
- Make intel_pstate initialize epp_policy to CPUFREQ_POLICY_UNKNOWN for
consistency with CPU offline (Christian Loehle).
- Fix superfluous updates caused by need_freq_update in the schedutil
cpufreq governor (Sultan Alsawaf).
- Allow configuring the system suspend-resume (DPM) watchdog to warn
earlier than panic (Douglas Anderson).
- Implement devm_device_init_wakeup() helper and introduce a device-
managed variant of dev_pm_set_wake_irq() (Joe Hattori, Peng Fan).
- Remove direct inclusions of 'pm_wakeup.h' which should be only
included via 'device.h' (Wolfram Sang).
- Clean up two comments in the core system-wide PM code (Rafael
Wysocki, Randy Dunlap).
- Add Clearwater Forest processor support to the intel_idle cpuidle
driver (Artem Bityutskiy).
- Clean up the Exynos devfreq driver and devfreq core (Markus Elfring,
Jeongjun Park).
- Minor cleanups and fixes for OPP (Dan Carpenter, Neil Armstrong, Joe
Hattori).
- Implement dev_pm_opp_get_bw() (Neil Armstrong).
- Expose OPP reference counting helpers for Rust (Viresh Kumar).
- Fix TSC MHz calculation in cpupower (He Rongguang).
- Add install and uninstall options to bindings Makefile and add header
changes for cpufreq.h to SWIG bindings in cpupower (John B. Wyatt IV).
- Add missing residency header changes in cpuidle.h to SWIG bindings in
cpupower (John B. Wyatt IV).
- Add output files to .gitignore and clean them up in "make clean" in
selftests/cpufreq (Li Zhijian).
- Fix cross-compilation in cpupower Makefile (Peng Fan).
- Revise the is_valid flag handling for idle_monitor in the cpupower
utility (wangfushuai).
- Extend and clean up AMD processors support in cpupower (Mario
Limonciello).
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Merge tag 'pm-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"The majority of changes here are cpufreq updates which are dominated
by amd-pstate driver changes, like in the previous cycle. Moreover,
changes related to amd-pstate are also the majority of cpupower
utility updates.
Included are some pieces of new hardware support, like the addition of
Clearwater Forest processors support to intel_idle, new cpufreq driver
for Airoha SoCs, and Apple cpufreq driver extensions to support more
SoCs. The intel_pstate driver is also extended to be able to support
new platforms by using ACPI CPPC to compute scaling factors between
HWP performance states and frequency.
The rest is mostly fixes and cleanups in assorted pieces of power
management code.
Specifics:
- Use str_enable_disable()-like helpers in cpufreq (Krzysztof
Kozlowski)
- Extend the Apple cpufreq driver to support more SoCs (Hector
Martin, Nick Chan)
- Add new cpufreq driver for Airoha SoCs (Christian Marangi)
- Fix using cpufreq-dt as module (Andreas Kemnade)
- Minor fixes for Sparc, SCMI, and Qcom cpufreq drivers (Ethan Carter
Edwards, Sibi Sankar, Manivannan Sadhasivam)
- Fix the maximum supported frequency computation in the ACPI cpufreq
driver to avoid relying on unfounded assumptions (Gautham Shenoy)
- Fix an amd-pstate driver regression with preferred core rankings
not being used (Mario Limonciello)
- Fix a precision issue with frequency calculation in the amd-pstate
driver (Naresh Solanki)
- Add ftrace event to the amd-pstate driver for active mode (Mario
Limonciello)
- Set default EPP policy on Ryzen processors in amd-pstate (Mario
Limonciello)
- Clean up the amd-pstate cpufreq driver and optimize it to increase
code reuse (Mario Limonciello, Dhananjay Ugwekar)
- Use CPPC to get scaling factors between HWP performance levels and
frequency in the intel_pstate driver and make it stop using a
built-in scaling factor for Arrow Lake processors (Rafael Wysocki)
- Make intel_pstate initialize epp_policy to CPUFREQ_POLICY_UNKNOWN
for consistency with CPU offline (Christian Loehle)
- Fix superfluous updates caused by need_freq_update in the schedutil
cpufreq governor (Sultan Alsawaf)
- Allow configuring the system suspend-resume (DPM) watchdog to warn
earlier than panic (Douglas Anderson)
- Implement devm_device_init_wakeup() helper and introduce a device-
managed variant of dev_pm_set_wake_irq() (Joe Hattori, Peng Fan)
- Remove direct inclusions of 'pm_wakeup.h' which should be only
included via 'device.h' (Wolfram Sang)
- Clean up two comments in the core system-wide PM code (Rafael
Wysocki, Randy Dunlap)
- Add Clearwater Forest processor support to the intel_idle cpuidle
driver (Artem Bityutskiy)
- Clean up the Exynos devfreq driver and devfreq core (Markus
Elfring, Jeongjun Park)
- Minor cleanups and fixes for OPP (Dan Carpenter, Neil Armstrong,
Joe Hattori)
- Implement dev_pm_opp_get_bw() (Neil Armstrong)
- Expose OPP reference counting helpers for Rust (Viresh Kumar)
- Fix TSC MHz calculation in cpupower (He Rongguang)
- Add install and uninstall options to bindings Makefile and add
header changes for cpufreq.h to SWIG bindings in cpupower (John B.
Wyatt IV)
- Add missing residency header changes in cpuidle.h to SWIG bindings
in cpupower (John B. Wyatt IV)
- Add output files to .gitignore and clean them up in "make clean" in
selftests/cpufreq (Li Zhijian)
- Fix cross-compilation in cpupower Makefile (Peng Fan)
- Revise the is_valid flag handling for idle_monitor in the cpupower
utility (wangfushuai)
- Extend and clean up AMD processors support in cpupower (Mario
Limonciello)"
* tag 'pm-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (67 commits)
PM / OPP: Add reference counting helpers for Rust implementation
PM: sleep: wakeirq: Introduce device-managed variant of dev_pm_set_wake_irq()
cpufreq: Use str_enable_disable()-like helpers
cpufreq: airoha: Add EN7581 CPUFreq SMCCC driver
PM: sleep: Allow configuring the DPM watchdog to warn earlier than panic
PM: sleep: convert comment from kernel-doc to plain comment
cpufreq: ACPI: Fix max-frequency computation
pm: cpupower: Add missing residency header changes in cpuidle.h to SWIG
PM / devfreq: exynos: remove unused function parameter
OPP: OF: Fix an OF node leak in _opp_add_static_v2()
cpufreq/amd-pstate: Refactor max frequency calculation
cpufreq/amd-pstate: Fix prefcore rankings
pm: cpupower: Add header changes for cpufreq.h to SWIG bindings
cpufreq: sparc: change kzalloc to kcalloc
cpufreq: qcom: Implement clk_ops::determine_rate() for qcom_cpufreq* clocks
cpufreq: qcom: Fix qcom_cpufreq_hw_recalc_rate() to query LUT if LMh IRQ is not available
cpufreq: apple-soc: Add Apple A7-A8X SoC cpufreq support
cpufreq: apple-soc: Set fallback transition latency to APPLE_DVFS_TRANSITION_TIMEOUT
cpufreq: apple-soc: Increase cluster switch timeout to 400us
cpufreq: apple-soc: Use 32-bit read for status register
...
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||
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Linus Torvalds
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6f10810ccd |
regmap: Updates for v6.14
There's one big bit of work this time around, the addition of support for a greater range of MBQ access sizes to SoundWire devices together with support for deferred read/write. The MBQ register maps generally have variable register sizes, the variable regiseter size support allows them to be handled much more naturally within regmap with less open coding in drivers. The deferred read/write support avoids spurious errors when devices make use of a bus feature allowing them to indicate they're busy. These changes pull in a supporting SoundWire change, and there's an ASoC change building off the new code. The remainder of the changes are code cleanups. -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAmeOXxIACgkQJNaLcl1U h9Bktwf/ZG6r01FNIw7PTDFQoZ2YipaFffqyJZco7zj2kyK1SqPt9jRQuPD5K8CE gXwxhIDu/Z7XXhTBOQ42shtOAyhw6FQDXdfULYvVl0kZ6JIUtz/J7JCuh3v/UBMo PWvFCIutDsgte0ru7jdQCTxgGgc39sobEQQOyznlNP+If7+aRpWW6B95YqakTzCc zDy8aDE4YxpFy6Wgg+t4xuO1KGdltHBoNFgtUNuaQtfkQP38JlMo9Ma/BEVu8INK WlGYPjo3eo/oRCohN+MByq15qvbVheAFg0B9h3mNcTOGFGhvNLBkqc4DE85UBk6g JH/QY1LEqTqHKEpi3oRAgwUUgy3Tog== =6vTg -----END PGP SIGNATURE----- Merge tag 'regmap-v6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap Pull regmap updates from Mark Brown: "There's one big bit of work this time around, the addition of support for a greater range of MBQ access sizes to SoundWire devices together with support for deferred read/write. The MBQ register maps generally have variable register sizes, the variable regiseter size support allows them to be handled much more naturally within regmap with less open coding in drivers. The deferred read/write support avoids spurious errors when devices make use of a bus feature allowing them to indicate they're busy. These changes pull in a supporting SoundWire change, and there's an ASoC change building off the new code. The remainder of the changes are code cleanups" * tag 'regmap-v6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap: regmap: sdw-mbq: Add support for SDCA deferred controls regmap: sdw-mbq: Add support for further MBQ register sizes ASoC: SDCA: Update list of entity_0 controls soundwire: SDCA: Add additional SDCA address macros regmap: regmap_multi_reg_read(): make register list const regmap: cache: rbtree: use krealloc_array() to replace krealloc() regmap: cache: mapple: use kmalloc_array() to replace kmalloc() regmap: place foo / 8 and foo % 8 closer to each other regmap: Use BITS_TO_BYTES() regmap: cache: Use BITS_TO_BYTES() |
||
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Rafael J. Wysocki
|
1225bb42b8 |
Merge branches 'pm-sleep', 'pm-cpuidle' and 'pm-em'
Merge updates related to system sleep, a cpuidle update and an Energy Model handling code update for 6.14-rc1: - Allow configuring the system suspend-resume (DPM) watchdog to warn earlier than panic (Douglas Anderson). - Implement devm_device_init_wakeup() helper and introduce a device- managed variant of dev_pm_set_wake_irq() (Joe Hattori, Peng Fan). - Remove direct inclusions of 'pm_wakeup.h' which should be only included via 'device.h' (Wolfram Sang). - Clean up two comments in the core system-wide PM code (Rafael Wysocki, Randy Dunlap). - Add Clearwater Forest processor support to the intel_idle cpuidle driver (Artem Bityutskiy). - Move sched domains rebuild function from the schedutil cpufreq governor to the Energy Model handling code (Rafael Wysocki). * pm-sleep: PM: sleep: wakeirq: Introduce device-managed variant of dev_pm_set_wake_irq() PM: sleep: Allow configuring the DPM watchdog to warn earlier than panic PM: sleep: convert comment from kernel-doc to plain comment PM: wakeup: implement devm_device_init_wakeup() helper PM: sleep: sysfs: don't include 'pm_wakeup.h' directly PM: sleep: autosleep: don't include 'pm_wakeup.h' directly PM: sleep: Update stale comment in device_resume() * pm-cpuidle: intel_idle: add Clearwater Forest SoC support * pm-em: PM: EM: Move sched domains rebuild function from schedutil to EM |
||
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Rafael J. Wysocki
|
d1ddf94665 |
Merge branches 'acpi-battery', 'acpi-fan' and 'acpi-misc'
Merge ACPI battery and fan drivers updates and miscellaneous ACPI chanages for 6.14: - Update messages printed by the ACPI battery driver to always refer to driver extensions as "hooks" to avoid confusion with similar functionality in the power supply subsystem in the future (Thomas Weißschuh). - Fix .probe() error path cleanup in the ACPI fan driver to avoid memory leaks (Joe Hattori). - Constify 'struct bin_attribute' in some places in the ACPI subsystem and mark it as __ro_after_init in one place to prevent binary blob attributes from being updated (Thomas Weißschuh) - Add empty stubs for several ACPI-related symbols so that they can be used when CONFIG_ACPI is unset and use them for removing unnecessary conditional compilation from the ipu-bridge driver (Ricardo Ribalda). * acpi-battery: ACPI: battery: Rename extensions to hook in messages * acpi-fan: ACPI: fan: cleanup resources in the error path of .probe() * acpi-misc: media: ipu-bridge: Remove unneeded conditional compilations ACPI: bus: implement acpi_device_hid when !ACPI ACPI: bus: implement for_each_acpi_consumer_dev when !ACPI ACPI: header: implement acpi_device_handle when !ACPI ACPI: bus: implement acpi_get_physical_device_location when !ACPI ACPI: bus: implement for_each_acpi_dev_match when !ACPI ACPI: bus: change the prototype for acpi_get_physical_device_location ACPI: sysfs: Constify 'struct bin_attribute' ACPI: BGRT: Constify 'struct bin_attribute' ACPI: BGRT: Mark bin_attribute as __ro_after_init |
||
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Palmer Dabbelt
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2613c15b0c
|
Merge patch series "riscv: Add support for xtheadvector"
Charlie Jenkins <charlie@rivosinc.com> says:
xtheadvector is a custom extension that is based upon riscv vector
version 0.7.1 [1]. All of the vector routines have been modified to
support this alternative vector version based upon whether xtheadvector
was determined to be supported at boot.
vlenb is not supported on the existing xtheadvector hardware, so a
devicetree property thead,vlenb is added to provide the vlenb to Linux.
There is a new hwprobe key RISCV_HWPROBE_KEY_VENDOR_EXT_THEAD_0 that is
used to request which thead vendor extensions are supported on the
current platform. This allows future vendors to allocate hwprobe keys
for their vendor.
Support for xtheadvector is also added to the vector kselftests.
[1]
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||
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Charlie Jenkins
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4bf9706923
|
riscv: Add ghostwrite vulnerability
Follow the patterns of the other architectures that use GENERIC_CPU_VULNERABILITIES for riscv to introduce the ghostwrite vulnerability and mitigation. The mitigation is to disable all vector which is accomplished by clearing the bit from the cpufeature field. Ghostwrite only affects thead c9xx CPUs that impelment xtheadvector, so the vulerability will only be mitigated on these CPUs. Signed-off-by: Charlie Jenkins <charlie@rivosinc.com> Tested-by: Yangyu Chen <cyy@cyyself.name> Link: https://lore.kernel.org/r/20241113-xtheadvector-v11-14-236c22791ef9@rivosinc.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com> |
||
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Peng Fan
|
fd8318a325 |
PM: sleep: wakeirq: Introduce device-managed variant of dev_pm_set_wake_irq()
Add device-managed variant of dev_pm_set_wake_irq which automatically clear the wake irq on device destruction to simplify error handling and resource management in drivers. Signed-off-by: Peng Fan <peng.fan@nxp.com> Link: https://patch.msgid.link/20250103-wake_irq-v2-1-e3aeff5e9966@nxp.com Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
||
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Thomas Weißschuh
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2485f8e8c4 |
devcoredump: Constify 'struct bin_attribute'
The sysfs core now allows instances of 'struct bin_attribute' to be moved into read-only memory. Make use of that to protect them against accidental or malicious modifications. Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Link: https://lore.kernel.org/r/20250114-sysfs-const-bin_attr-devcoredump-v1-2-fa93be30efae@weissschuh.net Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
||
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Thomas Weißschuh
|
bf1ad6c869 |
devcoredump: Define 'struct bin_attribute' through macro
The macro saves some lines of code and simplifies the constification of the attribute. Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Link: https://lore.kernel.org/r/20250114-sysfs-const-bin_attr-devcoredump-v1-1-fa93be30efae@weissschuh.net Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
||
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Douglas Anderson
|
56cabb937f |
PM: sleep: Allow configuring the DPM watchdog to warn earlier than panic
Allow configuring the DPM watchdog to warn about slow suspend/resume functions without causing a system panic(). This allows you to set the DPM_WATCHDOG_WARNING_TIMEOUT to something like 5 or 10 seconds to get warnings about slow suspend/resume functions that eventually succeed. Signed-off-by: Douglas Anderson <dianders@chromium.org> Reviewed-by: Tomasz Figa <tfiga@chromium.org> Link: https://patch.msgid.link/20250109125957.v2.1.I4554f931b8da97948f308ecc651b124338ee9603@changeid [ rjw: Subject edit ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
||
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Rob Herring (Arm)
|
bb3914101f |
device property: Split property reading bool and presence test ops
The fwnode/device property API currently implement (fwnode|device)_property_read_bool() with (fwnode|device)_property_present(). That does not allow having different behavior depending on the backend. Specifically, the usage of (fwnode|device)_property_read_bool() on non-boolean properties is deprecated on DT. In order to add a warning on this deprecated use, these 2 APIs need separate ops for the backend. Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://lore.kernel.org/r/20250109-dt-type-warnings-v1-1-0150e32e716c@kernel.org Signed-off-by: Rob Herring (Arm) <robh@kernel.org> |
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Greg Kroah-Hartman
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dd19f4116e |
Merge 6.13-rc7 into driver-core-next
We need the debugfs / driver-core fixes in here as well for testing and to build on top of. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
||
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Danilo Krummrich
|
f1725160fd |
devres: add devm_remove_action_nowarn()
devm_remove_action() warns if the action to remove does not exist (anymore). The Rust devres abstraction, however, has a use-case to call devm_remove_action() at a point where it can't be guaranteed that the corresponding action hasn't been released yet. In particular, an instance of `Devres<T>` may be dropped after the action has been released. So far, `Devres<T>` worked around this by keeping the inner type alive. Hence, add devm_remove_action_nowarn(), which returns an error code if the action has been removed already. A subsequent patch uses devm_remove_action_nowarn() to remove the action when `Devres<T>` is dropped. Signed-off-by: Danilo Krummrich <dakr@kernel.org> Link: https://lore.kernel.org/r/20250107122609.8135-1-dakr@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
||
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Heiner Kallweit
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827ed8b159 |
drivers: core: remove device_link argument from class_compat_[create|remove]_link
After
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||
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Zijun Hu
|
51796f5e29 |
driver core: Move two simple APIs for finding child device to header
The following two APIs are for finding child device, and both only have one line code in function body. device_find_child_by_name() device_find_any_child() Move them to header as static inline function. Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com> Link: https://lore.kernel.org/r/20250105-class_fix-v6-8-3a2f1768d4d4@quicinc.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
||
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Zijun Hu
|
767b74e0d1 |
driver core: Introduce device_iter_t for device iterating APIs
There are several for_each APIs which has parameter with type below: int (*fn)(struct device *dev, void *data) They iterate over various device lists and call @fn() for each device with caller provided data @*data, and they usually need to modify @*data. Give the type an dedicated typedef with advantages shown below: typedef int (*device_iter_t)(struct device *dev, void *data) - Shorter API declarations and definitions - Prevent further for_each APIs from using bad parameter type So introduce device_iter_t and apply it to various existing APIs below: bus_for_each_dev() (class|driver)_for_each_device() device_for_each_child(_reverse|_reverse_from)(). Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com> Link: https://lore.kernel.org/r/20250105-class_fix-v6-7-3a2f1768d4d4@quicinc.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Zijun Hu
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523c6b3ed7 |
driver core: Correct API device_for_each_child_reverse_from() prototype
For API device_for_each_child_reverse_from(..., const void *data, int (*fn)(struct device *dev, const void *data)) - Type of @data is const pointer, and means caller's data @*data is not allowed to be modified, but that usually is not proper for such non finding device iterating API. - Types for both @data and @fn are not consistent with all other for_each device iterating APIs device_for_each_child(_reverse)(), bus_for_each_dev() and (driver|class)_for_each_device(). Correct its prototype by removing const from parameter types, then adapt for various existing usages. An dedicated typedef device_iter_t will be introduced as @fn() type for various for_each device interating APIs later. Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com> Link: https://lore.kernel.org/r/20250105-class_fix-v6-6-3a2f1768d4d4@quicinc.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Zijun Hu
|
037116a6cc |
driver core: Correct parameter check for API device_for_each_child_reverse_from()
device_for_each_child_reverse_from() checks (!parent->p) for its parameter @parent, and that is not consistent with other APIs of its cluster as shown below: device_for_each_child_reverse_from() // check (!parent->p) device_for_each_child_reverse() // check (!parent || !parent->p) device_for_each_child() // same above device_find_child() // same above Correct the API's parameter @parent check by (!parent || !parent->p). Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com> Link: https://lore.kernel.org/r/20250105-class_fix-v6-5-3a2f1768d4d4@quicinc.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Zijun Hu
|
3f58ee540d |
driver core: Move true expression out of if condition in 3 device finding APIs
For bus_find_device(), driver_find_device(), and device_find_child(), all
of their function body have pattern below:
{
struct klist_iter i;
struct device *dev;
...
while ((dev = next_device(&i)))
if (match(dev, data) && get_device(dev))
break;
...
}
The expression 'get_device(dev)' in the if condition always returns true
since @dev != NULL.
Move the expression to if body to make logic of these APIs more clearer.
Reviewed-by: Fan Ni <fan.ni@samsung.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
Link: https://lore.kernel.org/r/20250105-class_fix-v6-3-3a2f1768d4d4@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
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Zijun Hu
|
e128f82f70 |
driver core: class: Fix wild pointer dereferences in API class_dev_iter_next()
There are a potential wild pointer dereferences issue regarding APIs
class_dev_iter_(init|next|exit)(), as explained by below typical usage:
// All members of @iter are wild pointers.
struct class_dev_iter iter;
// class_dev_iter_init(@iter, @class, ...) checks parameter @class for
// potential class_to_subsys() error, and it returns void type and does
// not initialize its output parameter @iter, so caller can not detect
// the error and continues to invoke class_dev_iter_next(@iter) even if
// @iter still contains wild pointers.
class_dev_iter_init(&iter, ...);
// Dereference these wild pointers in @iter here once suffer the error.
while (dev = class_dev_iter_next(&iter)) { ... };
// Also dereference these wild pointers here.
class_dev_iter_exit(&iter);
Actually, all callers of these APIs have such usage pattern in kernel tree.
Fix by:
- Initialize output parameter @iter by memset() in class_dev_iter_init()
and give callers prompt by pr_crit() for the error.
- Check if @iter is valid in class_dev_iter_next().
Fixes:
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Thomas Weißschuh
|
c1ecb860a4 |
firmware_loader: Constify 'struct bin_attribute'
The sysfs core now allows instances of 'struct bin_attribute' to be moved into read-only memory. Make use of that to protect them against accidental or malicious modifications. Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Reviewed-by: Russ Weight <russ.weight@linux.dev> Link: https://lore.kernel.org/r/20241222-sysfs-const-bin_attr-firmware-v1-1-c35e56bfb4eb@weissschuh.net Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Randy Dunlap
|
2a8d6abdf5 |
devcoredump: cleanup some comments
Correct a spello, remove an extra space between words, and fix one kernel-doc warning: drivers/base/devcoredump.c:292: warning: No description found for return value of 'devcd_read_from_sgtable' Fixes: |
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Mark Brown
|
d406b354df
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Expand SoundWire MBQ register map support
Merge series from Charles Keepax <ckeepax@opensource.cirrus.com>: The current SDCA MBQ (Multi-Byte Quantities) register map only supports 16-bit types, add support for more sizes and then update the rt722 driver to use the new support. We also add support for the deferring feature of MBQs to allow hardware to indicate it is not currently ready to service a read/write. Afraid I don't have hardware to test the rt722 change so it is only build tested, but I thought it good to include a change to demonstrate the new features in use. |
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Charles Keepax
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5bc493bf0c
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regmap: sdw-mbq: Add support for SDCA deferred controls
The SDCA specification allows for controls to be deferred. In the case of a deferred control the device will return COMMAND_IGNORED to the 8-bit operation that would cause the value to commit. Which is the final 8-bits on a write, or the first 8-bits on a read. In the case of receiving a defer, the regmap will poll the SDCA function busy bit, after which the transaction will be retried, returning an error if the function busy does not clear within a chip specific timeout. Since this is common SDCA functionality which is the 99% use-case for MBQs it makes sense to incorporate this functionality into the register map. If no MBQ configuration is specified, the behaviour will default to the existing behaviour. Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Link: https://patch.msgid.link/20250107154408.814455-5-ckeepax@opensource.cirrus.com Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.dev> Signed-off-by: Mark Brown <broonie@kernel.org> |
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Charles Keepax
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fdd9ef3dce
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regmap: sdw-mbq: Add support for further MBQ register sizes
SoundWire MBQ register maps typically contain a variety of register sizes, which doesn't map ideally to the regmap abstraction which expects register maps to have a consistent size. Currently the MBQ register map only allows 16-bit registers to be defined, however this leads to complex CODEC driver implementations with an 8-bit register map and a 16-bit MBQ, every control will then have a custom get and put handler that allows them to access different register maps. Further more 32-bit MBQ quantities are not currently supported. Add support for additional MBQ sizes and to avoid the complexity of multiple register maps treat the val_size as a maximum size for the register map. Within the regmap use an ancillary callback to determine how many bytes to actually read/write to the hardware for a specific register. In the case that no callback is defined the behaviour defaults back to the existing behaviour of a fixed size register map. Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Link: https://patch.msgid.link/20250107154408.814455-4-ckeepax@opensource.cirrus.com Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.dev> Signed-off-by: Mark Brown <broonie@kernel.org> |
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Li Huafei
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cbd399f78e |
topology: Keep the cpumask unchanged when printing cpumap
During fuzz testing, the following warning was discovered:
different return values (15 and 11) from vsnprintf("%*pbl
", ...)
test:keyward is WARNING in kvasprintf
WARNING: CPU: 55 PID: 1168477 at lib/kasprintf.c:30 kvasprintf+0x121/0x130
Call Trace:
kvasprintf+0x121/0x130
kasprintf+0xa6/0xe0
bitmap_print_to_buf+0x89/0x100
core_siblings_list_read+0x7e/0xb0
kernfs_file_read_iter+0x15b/0x270
new_sync_read+0x153/0x260
vfs_read+0x215/0x290
ksys_read+0xb9/0x160
do_syscall_64+0x56/0x100
entry_SYSCALL_64_after_hwframe+0x78/0xe2
The call trace shows that kvasprintf() reported this warning during the
printing of core_siblings_list. kvasprintf() has several steps:
(1) First, calculate the length of the resulting formatted string.
(2) Allocate a buffer based on the returned length.
(3) Then, perform the actual string formatting.
(4) Check whether the lengths of the formatted strings returned in
steps (1) and (2) are consistent.
If the core_cpumask is modified between steps (1) and (3), the lengths
obtained in these two steps may not match. Indeed our test includes cpu
hotplugging, which should modify core_cpumask while printing.
To fix this issue, cache the cpumask into a temporary variable before
calling cpumap_print_{list, cpumask}_to_buf(), to keep it unchanged
during the printing process.
Fixes:
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Zijun Hu
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adf908c965 |
driver core: Introduce an device matching API device_match_type()
Introduce device_match_type() for purposes below: - Test if a device matches with a specified device type. - As argument of various device finding APIs to find a device with specified type. device_find_child() will use it to simplify operations later. Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com> Link: https://lore.kernel.org/r/20241224-const_dfc_done-v5-9-6623037414d4@quicinc.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Zijun Hu
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6890fdc856 |
driver core: Remove match_any()
Static match_any() is now exactly same as API device_match_any(). Remove the former and use the later instead. Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com> Link: https://lore.kernel.org/r/20241224-const_dfc_done-v5-6-6623037414d4@quicinc.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Zijun Hu
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d784b43c2d |
driver core: Simplify API device_find_child_by_name() implementation
Simplify device_find_child_by_name() implementation by both existing API device_find_child() and device_match_name(). Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com> Link: https://lore.kernel.org/r/20241224-const_dfc_done-v5-5-6623037414d4@quicinc.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Zijun Hu
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f1e8bf5632 |
driver core: Constify API device_find_child() and adapt for various usages
Constify the following API:
struct device *device_find_child(struct device *dev, void *data,
int (*match)(struct device *dev, void *data));
To :
struct device *device_find_child(struct device *dev, const void *data,
device_match_t match);
typedef int (*device_match_t)(struct device *dev, const void *data);
with the following reasons:
- Protect caller's match data @*data which is for comparison and lookup
and the API does not actually need to modify @*data.
- Make the API's parameters (@match)() and @data have the same type as
all of other device finding APIs (bus|class|driver)_find_device().
- All kinds of existing device match functions can be directly taken
as the API's argument, they were exported by driver core.
Constify the API and adapt for various existing usages.
BTW, various subsystem changes are squashed into this commit to meet
'git bisect' requirement, and this commit has the minimal and simplest
changes to complement squashing shortcoming, and that may bring extra
code improvement.
Reviewed-by: Alison Schofield <alison.schofield@intel.com>
Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Acked-by: Uwe Kleine-König <ukleinek@kernel.org> # for drivers/pwm
Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20241224-const_dfc_done-v5-4-6623037414d4@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Brian Norris
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86a5f32ed8 |
drivers: base: test: Add ...find_device_by...(... NULL) tests
We recently updated these device_match*() (and therefore, various
*find_device_by*()) functions to return a consistent 'false' value when
trying to match a NULL handle. Add tests for this.
This provides regression-testing coverage for the sorts of bugs that
underly commit
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Brian Norris
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55b7aee990 |
drivers: base: test: Enable device model tests with KUNIT_ALL_TESTS
Per commit
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Brian Norris
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1b1bb7b29b |
drivers: base: Don't match devices with NULL of_node/fwnode/etc
of_find_device_by_node(), bus_find_device_by_of_node(),
bus_find_device_by_fwnode(), ..., all produce arbitrary results when
provided with a NULL of_node, fwnode, ACPI handle, etc. This is
counterintuitive, and the source of a few bugs, such as the one fixed by
commit
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Ricardo Ribalda
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79f237bae9 |
ACPI: bus: change the prototype for acpi_get_physical_device_location
It generally is not OK to use acpi_status and/or AE_ error codes without CONFIG_ACPI and they really only should be used in drivers/acpi/ (and not everywhere in there for that matter). So acpi_get_physical_device_location() needs to be redefined to return something different from acpi_status (preferably bool) in order to be used in !CONFIG_ACPI code. Suggested-by: Rafael J. Wysocki <rafael@kernel.org> Signed-off-by: Ricardo Ribalda <ribalda@chromium.org> Link: https://patch.msgid.link/20241216-fix-ipu-v5-1-3d6b35ddce7b@chromium.org Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
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Richard Fitzgerald
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eb708cd631
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regmap: regmap_multi_reg_read(): make register list const
Mark the list of registers passed into regmap_multi_reg_read() as a pointer to const. This allows the caller to define the register list as const data. This requires making the same change to _regmap_bulk_read(), which is called by regmap_multi_reg_read(). Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Link: https://patch.msgid.link/20241211133558.884669-1-rf@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org> |