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e2ae6e14d7
1339589 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Linus Torvalds
|
e2ae6e14d7 |
regulator: Updates for v6.15
This has been a very quiet release, we've got support for one device
added, another removed, and some smaller fixes and API improvements.
The main thing of note is the rework of the PCA9450 LDO5 handling:
- A rework of the handling of LDO5 on the PCA9450, this was quite wrong
in how it handled the SD_VSEL conrol and only worked for some system
designs. This includes a DTS update since there was a not quite ABI
compatible change as part of the fix.
- A devres change introducing devm_kmemdup_array() was pulled in so it
could be used with some regulator conversions to that function, this
pulled in some other devres and IIO stuff that was part of the same pull
request.
- Removal of the PCF50633 driver, the SoC for the OpenMoko platform
that used it has been removed.
- Support for the NXP PF9453.
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Merge tag 'regulator-v6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator updates from Mark Brown:
"This has been a very quiet release, we've got support for one device
added, another removed, and some smaller fixes and API improvements.
The main thing of note is the rework of the PCA9450 LDO5 handling.
- A rework of the handling of LDO5 on the PCA9450, this was quite
wrong in how it handled the SD_VSEL conrol and only worked for some
system designs. This includes a DTS update since there was a not
quite ABI compatible change as part of the fix
- A devres change introducing devm_kmemdup_array() was pulled in so
it could be used with some regulator conversions to that function,
this pulled in some other devres and IIO stuff that was part of the
same pull request
- Removal of the PCF50633 driver, the SoC for the OpenMoko platform
that used it has been removed
- Support for the NXP PF9453"
* tag 'regulator-v6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (24 commits)
regulator: axp20x: AXP717: dcdc4 doesn't have delay
regulator: dt-bindings: rtq2208: Cleanup whitespace
regulator: dt-bindings: rtq2208: Mark fixed LDO VOUT property as deprecated
regulator: rtq6752: make const read-only array fault_mask static
regulator: pf9453: add PMIC PF9453 support
regulator: dt-bindings: pca9450: Add nxp,pf9453 compatible string
regulator: pcf50633-regulator: Remove
regulator: pca9450: Handle hardware with fixed SD_VSEL for LDO5
regulator: cros-ec: use devm_kmemdup_array()
regulator: devres: use devm_kmemdup_array()
regulator: Add (devm_)of_regulator_get()
devres: Introduce devm_kmemdup_array()
iio: imu: st_lsm9ds0: Replace device.h with what is needed
driver core: Split devres APIs to device/devres.h
err.h: move IOMEM_ERR_PTR() to err.h
regulator: pca9450: Remove duplicate code in probe
regulator: ad5398: Fix incorrect power down bit mask
regulator: pca9450: Fix enable register for LDO5
regulator: pca9450: Fix control register for LDO5
Revert "regulator: pca9450: Add SD_VSEL GPIO for LDO5"
...
|
||
|
Linus Torvalds
|
ee6740fd34 |
CRC updates for 6.15
Another set of improvements to the kernel's CRC (cyclic redundancy
check) code:
- Rework the CRC64 library functions to be directly optimized, like what
I did last cycle for the CRC32 and CRC-T10DIF library functions.
- Rewrite the x86 PCLMULQDQ-optimized CRC code, and add VPCLMULQDQ
support and acceleration for crc64_be and crc64_nvme.
- Rewrite the riscv Zbc-optimized CRC code, and add acceleration for
crc_t10dif, crc64_be, and crc64_nvme.
- Remove crc_t10dif and crc64_rocksoft from the crypto API, since they
are no longer needed there.
- Rename crc64_rocksoft to crc64_nvme, as the old name was incorrect.
- Add kunit test cases for crc64_nvme and crc7.
- Eliminate redundant functions for calculating the Castagnoli CRC32,
settling on just crc32c().
- Remove unnecessary prompts from some of the CRC kconfig options.
- Further optimize the x86 crc32c code.
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Merge tag 'crc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux
Pull CRC updates from Eric Biggers:
"Another set of improvements to the kernel's CRC (cyclic redundancy
check) code:
- Rework the CRC64 library functions to be directly optimized, like
what I did last cycle for the CRC32 and CRC-T10DIF library
functions
- Rewrite the x86 PCLMULQDQ-optimized CRC code, and add VPCLMULQDQ
support and acceleration for crc64_be and crc64_nvme
- Rewrite the riscv Zbc-optimized CRC code, and add acceleration for
crc_t10dif, crc64_be, and crc64_nvme
- Remove crc_t10dif and crc64_rocksoft from the crypto API, since
they are no longer needed there
- Rename crc64_rocksoft to crc64_nvme, as the old name was incorrect
- Add kunit test cases for crc64_nvme and crc7
- Eliminate redundant functions for calculating the Castagnoli CRC32,
settling on just crc32c()
- Remove unnecessary prompts from some of the CRC kconfig options
- Further optimize the x86 crc32c code"
* tag 'crc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux: (36 commits)
x86/crc: drop the avx10_256 functions and rename avx10_512 to avx512
lib/crc: remove unnecessary prompt for CONFIG_CRC64
lib/crc: remove unnecessary prompt for CONFIG_LIBCRC32C
lib/crc: remove unnecessary prompt for CONFIG_CRC8
lib/crc: remove unnecessary prompt for CONFIG_CRC7
lib/crc: remove unnecessary prompt for CONFIG_CRC4
lib/crc7: unexport crc7_be_syndrome_table
lib/crc_kunit.c: update comment in crc_benchmark()
lib/crc_kunit.c: add test and benchmark for crc7_be()
x86/crc32: optimize tail handling for crc32c short inputs
riscv/crc64: add Zbc optimized CRC64 functions
riscv/crc-t10dif: add Zbc optimized CRC-T10DIF function
riscv/crc32: reimplement the CRC32 functions using new template
riscv/crc: add "template" for Zbc optimized CRC functions
x86/crc: add ANNOTATE_NOENDBR to suppress objtool warnings
x86/crc32: improve crc32c_arch() code generation with clang
x86/crc64: implement crc64_be and crc64_nvme using new template
x86/crc-t10dif: implement crc_t10dif using new template
x86/crc32: implement crc32_le using new template
x86/crc: add "template" for [V]PCLMULQDQ based CRC functions
...
|
||
|
Linus Torvalds
|
a86c6d0b2a |
fscrypt updates for 6.15
A fix for an issue where CONFIG_FS_ENCRYPTION could be enabled without some of its dependencies, and a small documentation update. -----BEGIN PGP SIGNATURE----- iIoEABYIADIWIQSacvsUNc7UX4ntmEPzXCl4vpKOKwUCZ+CBShQcZWJpZ2dlcnNA Z29vZ2xlLmNvbQAKCRDzXCl4vpKOKxj0AQC4OlE/HbIY2w3zO8Az9WEF9+4Dz9od EpxTwO/fk9PC+gD/Z7r8J3xn+ykcy9QcZW+Qucd64k+rbmvqj36gXce6hAI= =r+lX -----END PGP SIGNATURE----- Merge tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/linux Pull fscrypt updates from Eric Biggers: "A fix for an issue where CONFIG_FS_ENCRYPTION could be enabled without some of its dependencies, and a small documentation update" * tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/linux: fscrypt: mention init_on_free instead of page poisoning fscrypt: drop obsolete recommendation to enable optimized ChaCha20 Revert "fscrypt: relax Kconfig dependencies for crypto API algorithms" |
||
|
Linus Torvalds
|
bdab2977e4 |
fsverity updates for 6.15
A fix for an issue where CONFIG_FS_VERITY could be enabled without some of its dependencies, and a small documentation update. -----BEGIN PGP SIGNATURE----- iIoEABYIADIWIQSacvsUNc7UX4ntmEPzXCl4vpKOKwUCZ+CBZBQcZWJpZ2dlcnNA Z29vZ2xlLmNvbQAKCRDzXCl4vpKOK5WSAP9sihsazS5s2FwkY2ukwxuPBm448O6R w457RM/j2Dz6oQEAhQF4oKU6mWJk0dOFMoBJCEUUJinb1diYTE0BMtSbXAk= =BwSf -----END PGP SIGNATURE----- Merge tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fsverity/linux Pull fsverity updates from Eric Biggers: "A fix for an issue where CONFIG_FS_VERITY could be enabled without some of its dependencies, and a small documentation update" * tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fsverity/linux: Revert "fsverity: relax build time dependency on CRYPTO_SHA256" Documentation: add a usecase for FS_IOC_READ_VERITY_METADATA |
||
|
Linus Torvalds
|
61af143fbe |
Smack patches for v6.15
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||
|
Linus Torvalds
|
59c017ce9e |
selinux/stable-6.15 PR 20250323
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||
|
Linus Torvalds
|
054570267d |
lsm/stable-6.15 PR 20250323
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||
|
Linus Torvalds
|
b3c623b9a9 |
Thermal control updates for 6.15-rc1
- Delay exposing thermal zone sysfs interface to prevent user space
from accessing thermal zones that have not been completely
initialized yet (Lucas De Marchi).
- Check a pointer against NULL early in int3402_thermal_probe() to
avoid a potential NULL pointer dereference (Chenyuan Yang).
- Use kcalloc() instead of kzalloc() in some places in the thermal
control subsystem (Lukasz Luba, Ethan Carter Edwards).
- Fix a spelling mistake in a comment in the thermal core (Colin Ian
King).
- Clean up variable initialization in int340x_thermal_zone_add()
(Christophe JAILLET).
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Merge tag 'thermal-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull thermal control updates from Rafael Wysocki:
"These include one thermal core fix for an issue leading to a NULL
pointer dereference, a similar fix for the int340x thermal driver
(even though the issue may not actually occur in practice in this
particular case), and a bunch of cleanups, mostly related to replacing
kzalloc() with kcalloc() where applicable.
Summary:
- Delay exposing thermal zone sysfs interface to prevent user space
from accessing thermal zones that have not been completely
initialized yet (Lucas De Marchi)
- Check a pointer against NULL early in int3402_thermal_probe() to
avoid a potential NULL pointer dereference (Chenyuan Yang)
- Use kcalloc() instead of kzalloc() in some places in the thermal
control subsystem (Lukasz Luba, Ethan Carter Edwards)
- Fix a spelling mistake in a comment in the thermal core (Colin Ian
King)
- Clean up variable initialization in int340x_thermal_zone_add()
(Christophe JAILLET)"
* tag 'thermal-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
thermal: int340x: Add NULL check for adev
thermal: core: Delay exposing sysfs interface
thermal: core: Fix spelling mistake "Occurences" -> "Occurrences"
thermal: intel: Clean up zone_trips[] initialization in int340x_thermal_zone_add()
thermal: hisi: Use kcalloc() instead of kzalloc() with multiplication
thermal: int340x: Use kcalloc() instead of kzalloc() with multiplication
thermal: k3_j72xx_bandgap: Use kcalloc() instead of kzalloc()
thermal/of: Use kcalloc() instead of kzalloc() with multiplication
thermal/debugfs: replace kzalloc() with kcalloc() in thermal_debug_tz_add()
|
||
|
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
|
21e0ff5b10 |
ACPI updates for 6.15-rc1
- Use the str_on_off() helper function instead of hard-coded strings in
the ACPI power resources handling code (Thorsten Blum).
- Add fan speed reporting for ACPI fans that have _FST, but otherwise
do not support the entire ACPI 4 fan interface (Joshua Grisham).
- Fix a stale comment regarding trip points in acpi_thermal_add() that
diverged from the commented code after removing _CRT evaluation from
acpi_thermal_get_trip_points() (xueqin Luo).
- Make ACPI button driver also subscribe to system events (Mario
Limonciello).
- Use the str_yes_no() helper function instead of hard-coded strings in
the ACPI backlight (video) driver (Thorsten Blum).
- Add a missing header file include to the x86 arch CPPC code (Mario
Limonciello).
- Rework the sysfs attributes implementation in the ACPI platform-profile
driver and improve the unregistration code in it (Nathan Chancellor,
Kurt Borja).
- Prevent the ACPI HED driver from being built as a module and change
its initcall level to subsys_initcall to avoid initialization ordering
issues related to it (Xiaofei Tan).
- Update a maintainer email address in the ACPI PMIC entry in
MAINTAINERS (Mika Westerberg).
- Address a GCC 15's -Wunterminated-string-initialization warning in
the core PNP subsystem code and remove some dead code from it (Kees
Cook, David Alan Gilbert).
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Merge tag 'acpi-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI updates from Rafael Wysocki:
"From the functional perspective, the most significant changes here are
the ACPI fan driver update allowing it to handle fans with
fine-grained state checking supported, but without fine-grained
control, and the ACPI button driver update making it subscribe to
system event notifications (in addition to device notifications) which
on some systems is requisite for waking up the system from sleep.
The rest is fixes and cleanups including removal of some dead code.
Specifics:
- Use the str_on_off() helper function instead of hard-coded strings
in the ACPI power resources handling code (Thorsten Blum)
- Add fan speed reporting for ACPI fans that have _FST, but otherwise
do not support the entire ACPI 4 fan interface (Joshua Grisham)
- Fix a stale comment regarding trip points in acpi_thermal_add()
that diverged from the commented code after removing _CRT
evaluation from acpi_thermal_get_trip_points() (xueqin Luo)
- Make ACPI button driver also subscribe to system events (Mario
Limonciello)
- Use the str_yes_no() helper function instead of hard-coded strings
in the ACPI backlight (video) driver (Thorsten Blum)
- Add a missing header file include to the x86 arch CPPC code (Mario
Limonciello)
- Rework the sysfs attributes implementation in the ACPI
platform-profile driver and improve the unregistration code in it
(Nathan Chancellor, Kurt Borja)
- Prevent the ACPI HED driver from being built as a module and change
its initcall level to subsys_initcall to avoid initialization
ordering issues related to it (Xiaofei Tan)
- Update a maintainer email address in the ACPI PMIC entry in
MAINTAINERS (Mika Westerberg)
- Address a GCC 15's -Wunterminated-string-initialization warning in
the core PNP subsystem code and remove some dead code from it (Kees
Cook, David Alan Gilbert)"
* tag 'acpi-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PNP: Expand length of fixup id string
PNP: Remove prehistoric deadcode
ACPI: button: Install notifier for system events as well
ACPI: fan: Add fan speed reporting for fans with only _FST
ACPI: HED: Always initialize before evged
x86/ACPI: CPPC: Add missing include
ACPI: video: Use str_yes_no() helper in acpi_video_bus_add()
ACPI: platform_profile: Improve platform_profile_unregister()
ACPI: platform-profile: Fix CFI violation when accessing sysfs files
ACPI: power: Use str_on_off() helper function
ACPI: thermal: Fix stale comment regarding trip points
MAINTAINERS: Use my kernel.org address for ACPI PMIC work
|
||
|
Linus Torvalds
|
a5b3d8660b |
hyperv-next for 6.15
-----BEGIN PGP SIGNATURE----- iQFHBAABCgAxFiEEIbPD0id6easf0xsudhRwX5BBoF4FAmfhlLATHHdlaS5saXVA a2VybmVsLm9yZwAKCRB2FHBfkEGgXgchCADOz33rSm4G4w4r0qT05dTDi/lZkEdK 64dQq322XXP/C9FfR66d30243gsAmuM5a0SvzFHLXAOu6yqM270Xehd/Rud+Um2s lSVnc0Ux0AWBgksqFd0t577aN7zmJEukosEYO5lBNop+zOcadrm3S6Th/AoL2h/D yphPkhH13bsCK+Wll/eBOQLIhC9iA0konYbBLuEQ5MqvUbrzc6Rmb5gxsHHZKOqg vLjkrYR/d3s2gIpKxiFp0RwvzGyffZEHxvU/YF3hTenPMlTlnXWbyspBSTVmWggP 13IFLzqxDdW9RgUnGB4xRc424AC1LKqEr42QPQE7zGvl2jdJriA2Q1LT =BXqj -----END PGP SIGNATURE----- Merge tag 'hyperv-next-signed-20250324' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux Pull hyperv updates from Wei Liu: - Add support for running as the root partition in Hyper-V (Microsoft Hypervisor) by exposing /dev/mshv (Nuno and various people) - Add support for CPU offlining in Hyper-V (Hamza Mahfooz) - Misc fixes and cleanups (Roman Kisel, Tianyu Lan, Wei Liu, Michael Kelley, Thorsten Blum) * tag 'hyperv-next-signed-20250324' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux: (24 commits) x86/hyperv: fix an indentation issue in mshyperv.h x86/hyperv: Add comments about hv_vpset and var size hypercall input args Drivers: hv: Introduce mshv_root module to expose /dev/mshv to VMMs hyperv: Add definitions for root partition driver to hv headers x86: hyperv: Add mshv_handler() irq handler and setup function Drivers: hv: Introduce per-cpu event ring tail Drivers: hv: Export some functions for use by root partition module acpi: numa: Export node_to_pxm() hyperv: Introduce hv_recommend_using_aeoi() arm64/hyperv: Add some missing functions to arm64 x86/mshyperv: Add support for extended Hyper-V features hyperv: Log hypercall status codes as strings x86/hyperv: Fix check of return value from snp_set_vmsa() x86/hyperv: Add VTL mode callback for restarting the system x86/hyperv: Add VTL mode emergency restart callback hyperv: Remove unused union and structs hyperv: Add CONFIG_MSHV_ROOT to gate root partition support hyperv: Change hv_root_partition into a function hyperv: Convert hypercall statuses to linux error codes drivers/hv: add CPU offlining support ... |
||
|
Linus Torvalds
|
dce3ab4c57 |
xen: branch for v6.15-rc1
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRTLbB6QfY48x44uB6AXGG7T9hjvgUCZ9/gEwAKCRCAXGG7T9hj vlxhAQCRzSCNI8wwvENnuc2OnRyWKy8gq7C5WAOIOJdJ3U+scQEAwKGhPJLwE4IS /JDh5PRJgZ4rdMYatuDfldEcSAfRRgw= =dF6Z -----END PGP SIGNATURE----- Merge tag 'for-linus-6.15-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull xen updates from Juergen Gross: - cleanup: remove an used function - add support for a XenServer specific virtual PCI device - fix the handling of a sparse Xen hypervisor symbol table - avoid warnings when building the kernel with gcc 15 - fix use of devices behind a VMD bridge when running as a Xen PV dom0 * tag 'for-linus-6.15-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: PCI/MSI: Convert pci_msi_ignore_mask to per MSI domain flag PCI: vmd: Disable MSI remapping bypass under Xen xen/pci: Do not register devices with segments >= 0x10000 xen/pciback: Remove unused pcistub_get_pci_dev xenfs/xensyms: respect hypervisor's "next" indication xen/mcelog: Add __nonstring annotations for unterminated strings xen: Add support for XenServer 6.1 platform device |
||
|
Linus Torvalds
|
edb0e8f6e2 |
ARM:
* Nested virtualization support for VGICv3, giving the nested
hypervisor control of the VGIC hardware when running an L2 VM
* Removal of 'late' nested virtualization feature register masking,
making the supported feature set directly visible to userspace
* Support for emulating FEAT_PMUv3 on Apple silicon, taking advantage
of an IMPLEMENTATION DEFINED trap that covers all PMUv3 registers
* Paravirtual interface for discovering the set of CPU implementations
where a VM may run, addressing a longstanding issue of guest CPU
errata awareness in big-little systems and cross-implementation VM
migration
* Userspace control of the registers responsible for identifying a
particular CPU implementation (MIDR_EL1, REVIDR_EL1, AIDR_EL1),
allowing VMs to be migrated cross-implementation
* pKVM updates, including support for tracking stage-2 page table
allocations in the protected hypervisor in the 'SecPageTable' stat
* Fixes to vPMU, ensuring that userspace updates to the vPMU after
KVM_RUN are reflected into the backing perf events
LoongArch:
* Remove unnecessary header include path
* Assume constant PGD during VM context switch
* Add perf events support for guest VM
RISC-V:
* Disable the kernel perf counter during configure
* KVM selftests improvements for PMU
* Fix warning at the time of KVM module removal
x86:
* Add support for aging of SPTEs without holding mmu_lock. Not taking mmu_lock
allows multiple aging actions to run in parallel, and more importantly avoids
stalling vCPUs. This includes an implementation of per-rmap-entry locking;
aging the gfn is done with only a per-rmap single-bin spinlock taken, whereas
locking an rmap for write requires taking both the per-rmap spinlock and
the mmu_lock.
Note that this decreases slightly the accuracy of accessed-page information,
because changes to the SPTE outside aging might not use atomic operations
even if they could race against a clear of the Accessed bit. This is
deliberate because KVM and mm/ tolerate false positives/negatives for
accessed information, and testing has shown that reducing the latency of
aging is far more beneficial to overall system performance than providing
"perfect" young/old information.
* Defer runtime CPUID updates until KVM emulates a CPUID instruction, to
coalesce updates when multiple pieces of vCPU state are changing, e.g. as
part of a nested transition.
* Fix a variety of nested emulation bugs, and add VMX support for synthesizing
nested VM-Exit on interception (instead of injecting #UD into L2).
* Drop "support" for async page faults for protected guests that do not set
SEND_ALWAYS (i.e. that only want async page faults at CPL3)
* Bring a bit of sanity to x86's VM teardown code, which has accumulated
a lot of cruft over the years. Particularly, destroy vCPUs before
the MMU, despite the latter being a VM-wide operation.
* Add common secure TSC infrastructure for use within SNP and in the
future TDX
* Block KVM_CAP_SYNC_REGS if guest state is protected. It does not make
sense to use the capability if the relevant registers are not
available for reading or writing.
* Don't take kvm->lock when iterating over vCPUs in the suspend notifier to
fix a largely theoretical deadlock.
* Use the vCPU's actual Xen PV clock information when starting the Xen timer,
as the cached state in arch.hv_clock can be stale/bogus.
* Fix a bug where KVM could bleed PVCLOCK_GUEST_STOPPED across different
PV clocks; restrict PVCLOCK_GUEST_STOPPED to kvmclock, as KVM's suspend
notifier only accounts for kvmclock, and there's no evidence that the
flag is actually supported by Xen guests.
* Clean up the per-vCPU "cache" of its reference pvclock, and instead only
track the vCPU's TSC scaling (multipler+shift) metadata (which is moderately
expensive to compute, and rarely changes for modern setups).
* Don't write to the Xen hypercall page on MSR writes that are initiated by
the host (userspace or KVM) to fix a class of bugs where KVM can write to
guest memory at unexpected times, e.g. during vCPU creation if userspace has
set the Xen hypercall MSR index to collide with an MSR that KVM emulates.
* Restrict the Xen hypercall MSR index to the unofficial synthetic range to
reduce the set of possible collisions with MSRs that are emulated by KVM
(collisions can still happen as KVM emulates Hyper-V MSRs, which also reside
in the synthetic range).
* Clean up and optimize KVM's handling of Xen MSR writes and xen_hvm_config.
* Update Xen TSC leaves during CPUID emulation instead of modifying the CPUID
entries when updating PV clocks; there is no guarantee PV clocks will be
updated between TSC frequency changes and CPUID emulation, and guest reads
of the TSC leaves should be rare, i.e. are not a hot path.
x86 (Intel):
* Fix a bug where KVM unnecessarily reads XFD_ERR from hardware and thus
modifies the vCPU's XFD_ERR on a #NM due to CR0.TS=1.
* Pass XFD_ERR as the payload when injecting #NM, as a preparatory step
for upcoming FRED virtualization support.
* Decouple the EPT entry RWX protection bit macros from the EPT Violation
bits, both as a general cleanup and in anticipation of adding support for
emulating Mode-Based Execution Control (MBEC).
* Reject KVM_RUN if userspace manages to gain control and stuff invalid guest
state while KVM is in the middle of emulating nested VM-Enter.
* Add a macro to handle KVM's sanity checks on entry/exit VMCS control pairs
in anticipation of adding sanity checks for secondary exit controls (the
primary field is out of bits).
x86 (AMD):
* Ensure the PSP driver is initialized when both the PSP and KVM modules are
built-in (the initcall framework doesn't handle dependencies).
* Use long-term pins when registering encrypted memory regions, so that the
pages are migrated out of MIGRATE_CMA/ZONE_MOVABLE and don't lead to
excessive fragmentation.
* Add macros and helpers for setting GHCB return/error codes.
* Add support for Idle HLT interception, which elides interception if the vCPU
has a pending, unmasked virtual IRQ when HLT is executed.
* Fix a bug in INVPCID emulation where KVM fails to check for a non-canonical
address.
* Don't attempt VMRUN for SEV-ES+ guests if the vCPU's VMSA is invalid, e.g.
because the vCPU was "destroyed" via SNP's AP Creation hypercall.
* Reject SNP AP Creation if the requested SEV features for the vCPU don't
match the VM's configured set of features.
Selftests:
* Fix again the Intel PMU counters test; add a data load and do CLFLUSH{OPT} on the data
instead of executing code. The theory is that modern Intel CPUs have
learned new code prefetching tricks that bypass the PMU counters.
* Fix a flaw in the Intel PMU counters test where it asserts that an event is
counting correctly without actually knowing what the event counts on the
underlying hardware.
* Fix a variety of flaws, bugs, and false failures/passes dirty_log_test, and
improve its coverage by collecting all dirty entries on each iteration.
* Fix a few minor bugs related to handling of stats FDs.
* Add infrastructure to make vCPU and VM stats FDs available to tests by
default (open the FDs during VM/vCPU creation).
* Relax an assertion on the number of HLT exits in the xAPIC IPI test when
running on a CPU that supports AMD's Idle HLT (which elides interception of
HLT if a virtual IRQ is pending and unmasked).
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm updates from Paolo Bonzini:
"ARM:
- Nested virtualization support for VGICv3, giving the nested
hypervisor control of the VGIC hardware when running an L2 VM
- Removal of 'late' nested virtualization feature register masking,
making the supported feature set directly visible to userspace
- Support for emulating FEAT_PMUv3 on Apple silicon, taking advantage
of an IMPLEMENTATION DEFINED trap that covers all PMUv3 registers
- Paravirtual interface for discovering the set of CPU
implementations where a VM may run, addressing a longstanding issue
of guest CPU errata awareness in big-little systems and
cross-implementation VM migration
- Userspace control of the registers responsible for identifying a
particular CPU implementation (MIDR_EL1, REVIDR_EL1, AIDR_EL1),
allowing VMs to be migrated cross-implementation
- pKVM updates, including support for tracking stage-2 page table
allocations in the protected hypervisor in the 'SecPageTable' stat
- Fixes to vPMU, ensuring that userspace updates to the vPMU after
KVM_RUN are reflected into the backing perf events
LoongArch:
- Remove unnecessary header include path
- Assume constant PGD during VM context switch
- Add perf events support for guest VM
RISC-V:
- Disable the kernel perf counter during configure
- KVM selftests improvements for PMU
- Fix warning at the time of KVM module removal
x86:
- Add support for aging of SPTEs without holding mmu_lock.
Not taking mmu_lock allows multiple aging actions to run in
parallel, and more importantly avoids stalling vCPUs. This includes
an implementation of per-rmap-entry locking; aging the gfn is done
with only a per-rmap single-bin spinlock taken, whereas locking an
rmap for write requires taking both the per-rmap spinlock and the
mmu_lock.
Note that this decreases slightly the accuracy of accessed-page
information, because changes to the SPTE outside aging might not
use atomic operations even if they could race against a clear of
the Accessed bit.
This is deliberate because KVM and mm/ tolerate false
positives/negatives for accessed information, and testing has shown
that reducing the latency of aging is far more beneficial to
overall system performance than providing "perfect" young/old
information.
- Defer runtime CPUID updates until KVM emulates a CPUID instruction,
to coalesce updates when multiple pieces of vCPU state are
changing, e.g. as part of a nested transition
- Fix a variety of nested emulation bugs, and add VMX support for
synthesizing nested VM-Exit on interception (instead of injecting
#UD into L2)
- Drop "support" for async page faults for protected guests that do
not set SEND_ALWAYS (i.e. that only want async page faults at CPL3)
- Bring a bit of sanity to x86's VM teardown code, which has
accumulated a lot of cruft over the years. Particularly, destroy
vCPUs before the MMU, despite the latter being a VM-wide operation
- Add common secure TSC infrastructure for use within SNP and in the
future TDX
- Block KVM_CAP_SYNC_REGS if guest state is protected. It does not
make sense to use the capability if the relevant registers are not
available for reading or writing
- Don't take kvm->lock when iterating over vCPUs in the suspend
notifier to fix a largely theoretical deadlock
- Use the vCPU's actual Xen PV clock information when starting the
Xen timer, as the cached state in arch.hv_clock can be stale/bogus
- Fix a bug where KVM could bleed PVCLOCK_GUEST_STOPPED across
different PV clocks; restrict PVCLOCK_GUEST_STOPPED to kvmclock, as
KVM's suspend notifier only accounts for kvmclock, and there's no
evidence that the flag is actually supported by Xen guests
- Clean up the per-vCPU "cache" of its reference pvclock, and instead
only track the vCPU's TSC scaling (multipler+shift) metadata (which
is moderately expensive to compute, and rarely changes for modern
setups)
- Don't write to the Xen hypercall page on MSR writes that are
initiated by the host (userspace or KVM) to fix a class of bugs
where KVM can write to guest memory at unexpected times, e.g.
during vCPU creation if userspace has set the Xen hypercall MSR
index to collide with an MSR that KVM emulates
- Restrict the Xen hypercall MSR index to the unofficial synthetic
range to reduce the set of possible collisions with MSRs that are
emulated by KVM (collisions can still happen as KVM emulates
Hyper-V MSRs, which also reside in the synthetic range)
- Clean up and optimize KVM's handling of Xen MSR writes and
xen_hvm_config
- Update Xen TSC leaves during CPUID emulation instead of modifying
the CPUID entries when updating PV clocks; there is no guarantee PV
clocks will be updated between TSC frequency changes and CPUID
emulation, and guest reads of the TSC leaves should be rare, i.e.
are not a hot path
x86 (Intel):
- Fix a bug where KVM unnecessarily reads XFD_ERR from hardware and
thus modifies the vCPU's XFD_ERR on a #NM due to CR0.TS=1
- Pass XFD_ERR as the payload when injecting #NM, as a preparatory
step for upcoming FRED virtualization support
- Decouple the EPT entry RWX protection bit macros from the EPT
Violation bits, both as a general cleanup and in anticipation of
adding support for emulating Mode-Based Execution Control (MBEC)
- Reject KVM_RUN if userspace manages to gain control and stuff
invalid guest state while KVM is in the middle of emulating nested
VM-Enter
- Add a macro to handle KVM's sanity checks on entry/exit VMCS
control pairs in anticipation of adding sanity checks for secondary
exit controls (the primary field is out of bits)
x86 (AMD):
- Ensure the PSP driver is initialized when both the PSP and KVM
modules are built-in (the initcall framework doesn't handle
dependencies)
- Use long-term pins when registering encrypted memory regions, so
that the pages are migrated out of MIGRATE_CMA/ZONE_MOVABLE and
don't lead to excessive fragmentation
- Add macros and helpers for setting GHCB return/error codes
- Add support for Idle HLT interception, which elides interception if
the vCPU has a pending, unmasked virtual IRQ when HLT is executed
- Fix a bug in INVPCID emulation where KVM fails to check for a
non-canonical address
- Don't attempt VMRUN for SEV-ES+ guests if the vCPU's VMSA is
invalid, e.g. because the vCPU was "destroyed" via SNP's AP
Creation hypercall
- Reject SNP AP Creation if the requested SEV features for the vCPU
don't match the VM's configured set of features
Selftests:
- Fix again the Intel PMU counters test; add a data load and do
CLFLUSH{OPT} on the data instead of executing code. The theory is
that modern Intel CPUs have learned new code prefetching tricks
that bypass the PMU counters
- Fix a flaw in the Intel PMU counters test where it asserts that an
event is counting correctly without actually knowing what the event
counts on the underlying hardware
- Fix a variety of flaws, bugs, and false failures/passes
dirty_log_test, and improve its coverage by collecting all dirty
entries on each iteration
- Fix a few minor bugs related to handling of stats FDs
- Add infrastructure to make vCPU and VM stats FDs available to tests
by default (open the FDs during VM/vCPU creation)
- Relax an assertion on the number of HLT exits in the xAPIC IPI test
when running on a CPU that supports AMD's Idle HLT (which elides
interception of HLT if a virtual IRQ is pending and unmasked)"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (216 commits)
RISC-V: KVM: Optimize comments in kvm_riscv_vcpu_isa_disable_allowed
RISC-V: KVM: Teardown riscv specific bits after kvm_exit
LoongArch: KVM: Register perf callbacks for guest
LoongArch: KVM: Implement arch-specific functions for guest perf
LoongArch: KVM: Add stub for kvm_arch_vcpu_preempted_in_kernel()
LoongArch: KVM: Remove PGD saving during VM context switch
LoongArch: KVM: Remove unnecessary header include path
KVM: arm64: Tear down vGIC on failed vCPU creation
KVM: arm64: PMU: Reload when resetting
KVM: arm64: PMU: Reload when user modifies registers
KVM: arm64: PMU: Fix SET_ONE_REG for vPMC regs
KVM: arm64: PMU: Assume PMU presence in pmu-emul.c
KVM: arm64: PMU: Set raw values from user to PM{C,I}NTEN{SET,CLR}, PMOVS{SET,CLR}
KVM: arm64: Create each pKVM hyp vcpu after its corresponding host vcpu
KVM: arm64: Factor out pKVM hyp vcpu creation to separate function
KVM: arm64: Initialize HCRX_EL2 traps in pKVM
KVM: arm64: Factor out setting HCRX_EL2 traps into separate function
KVM: x86: block KVM_CAP_SYNC_REGS if guest state is protected
KVM: x86: Add infrastructure for secure TSC
KVM: x86: Push down setting vcpu.arch.user_set_tsc
...
|
||
|
Linus Torvalds
|
27bd3ce403 |
m68k updates for v6.15
- Miscellaneous fixes and improvements, - Defconfig updates. -----BEGIN PGP SIGNATURE----- iIsEABYKADMWIQQ9qaHoIs/1I4cXmEiKwlD9ZEnxcAUCZ+GpcxUcZ2VlcnRAbGlu dXgtbTY4ay5vcmcACgkQisJQ/WRJ8XA8dAD/X/aMaogRp9Afm/GHH9ImC7HW2pi5 Rdtb38PYbEFtPC8BAPcO/NvhJnPrkjS3yxJ0gm4KqAPWpUrTgsjFPnRHCikL =Otrr -----END PGP SIGNATURE----- Merge tag 'm68k-for-v6.15-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k Pull m68k updates from Geert Uytterhoeven: - misc fixes and improvements - defconfig updates * tag 'm68k-for-v6.15-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k: m68k: defconfig: Update defconfigs for v6.14-rc1 m68k: setup: Remove size argument when calling strscpy() m68k: sun3: Fix DEBUG_MMU_EMU build m68k: sun3: Use str_read_write() helper in mmu_emu_handle_fault() |
||
|
Linus Torvalds
|
0d86c23953 |
- A cleanup to the MCE notification machinery
-----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmfixMAACgkQEsHwGGHe VUrZ/A/+LmqCE4TQEsS04oLezqu9hfPHiQ1Z1DK1RpjLyx23YZGBoYslGHtltknZ rXt15UDINSYXlbnVBzIFtuTQX8GKWySr/DbN9rV/rb4xW81giOPwW96/M/LfnPBh kV3KCrgsPvIfKE1pmCkK0ThkemcVcjtvq83Jpn3C6ppsqDZdOrSH+e8ZCnKSVK3q n3IwDQXmBJXV+wZFiAMvMTqUpJVNCTeiQj+ACrfOqgnAZsGFsEsEKqZkdO2ouaEy 7QAdY+6AELX3LnAu4mJKDVsZ/HSUip7uVOqqM02TMw5O4z/cpzd3rH8tObSTW9hr DLlLXmfOJliQdJGHAECv79DiViycF6axVdZh6WvfvJHzZYUyNSrjoWUTDUW3JFI1 ZikhBh/hQlfas12k0dYYcObgF1li45LyfFl/uSyIfoO1aIno+Od8yv1/jRrd8s50 7ehS5OFtpb4EsqCED2arAsiDiaoHwrYWAP8aoJVwXg5AZB6ShritSC6QlQpOgDCw 81VOeARaJoYJggxDzxGYCjLQORzoweDuuMs41qZLqn3DfinYvotHUjo6j5DL2JEm iFEce2NeKvi+T2dB8k1EzqyGL0VKSh1ogI53RzGnaWUt1f8JnJuM7Je+VXI5LGL3 Ce8sSVzZbc5MFPOCncoxXw7f68aND+P0lm+yA79lVMT7ytp54KA= =rY2E -----END PGP SIGNATURE----- Merge tag 'ras_core_for_v6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull RAS update from Borislav Petkov: - A cleanup to the MCE notification machinery * tag 'ras_core_for_v6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/mce/inject: Remove call to mce_notify_irq() |
||
|
Linus Torvalds
|
ae8371a46e |
- Add infrastructure support to EDAC in order to be able to register memory
scrubbing RAS functionality with the kernel and expose sysfs nodes to control such scrubbing functionality. The main use case is CXL devices which provide different scrubbers for their built-in memories so that tools like rasdaemon can configure and control memory scrubbing and other, more advanced RAS functionality. (Shiju Jose and Jonathan Cameron) - Add support to ie31200_edac for client SoCs like Raptor Lake-S which have multiple memory controllers and out-of-band ECC capability. (Qiuxu Zhuo) - The usual round of cleanups, simplifications and fixlets -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmfitgYACgkQEsHwGGHe VUp/Tg/7BJeE9QunMlB2EcCbYM+3eelp+Sg899S/6iNdC66sevFPoVXTpv9qz7Q6 +ZD+V5vKIuKmGlV9dtn8nK5o8VvA2EvZsYSp6kk85qC+GNoqlc9E50I1yB3+otl8 /3qD7PH0Ww5a4csjg+ioTRTphXp5DaK5J1m+Gze4h9n2ADs/aDb6vWr2AobomYOT h8pIb5PBdX9ehjWqUP/d+G+/ZN7244+FtMt1p3/xhBMjRJcwUxeAkw1u59EC5Hpb poP60Sl4pjr6uUI6QXrGEvLqvX3kq+fqveRosX1L+SlgAXesGXSg/tbdY5T78zGS aTebwmej00tvqQIYfsPpFKqk4W2wxUfnG6a2K0U3fYINQqSjI8kPrq9kMLpPejAG Lb0rZmHwLTPMM+G0BZVc4QSClhO9GXnD1wIsH8YGcqEkjDo0wkDL3KVm8aFhcx7b BDHn7b9Zx9zIvPhlcRupsUUNiqrNAV3R+zfUWzH9JF/GeCrT148vs8cZX16QGk18 bnA5SY/mv8EExbeaEltKRagdToqxW6WEq5vv6KuLpco4kfCWJYWUHe5QaAMzZUBZ hXW0vvzUbkBLZo2NsdbXJk0+iT/lmjjOaqHZGcuwtepLIsJoRySkabbsMe6TTTtY O4abNt5yJkgcCYJwMwKmS9RogROO9yZjhK+4QfGex2lYgjlMTds= =OpTE -----END PGP SIGNATURE----- Merge tag 'edac_updates_for_v6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras Pull EDAC updates from Borislav Petkov: - Add infrastructure support to EDAC in order to be able to register memory scrubbing RAS functionality with the kernel and expose sysfs nodes to control such scrubbing functionality. The main use case is CXL devices which provide different scrubbers for their built-in memories so that tools like rasdaemon can configure and control memory scrubbing and other, more advanced RAS functionality (Shiju Jose and Jonathan Cameron) - Add support to ie31200_edac for client SoCs like Raptor Lake-S which have multiple memory controllers and out-of-band ECC capability (Qiuxu Zhuo) - The usual round of cleanups, simplifications and fixlets * tag 'edac_updates_for_v6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras: (25 commits) MAINTAINERS: Add a secondary maintainer for bluefield_edac EDAC/ie31200: Switch Raptor Lake-S to interrupt mode EDAC/ie31200: Add Intel Raptor Lake-S SoCs support EDAC/ie31200: Break up ie31200_probe1() EDAC/ie31200: Fold the two channel loops into one loop EDAC/ie31200: Make struct dimm_data contain decoded information EDAC/ie31200: Make the memory controller resources configurable EDAC/ie31200: Simplify the pci_device_id table EDAC/ie31200: Fix the 3rd parameter name of *populate_dimm_info() EDAC/ie31200: Fix the error path order of ie31200_init() EDAC/ie31200: Fix the DIMM size mask for several SoCs EDAC/ie31200: Fix the size of EDAC_MC_LAYER_CHIP_SELECT layer EDAC/device: Fix dev_set_name() format string EDAC/pnd2: Make read-only const array intlv static EDAC/igen6: Constify struct res_config EDAC/amd64: Simplify return statement in dct_ecc_enabled() EDAC: Update memory repair control interface for memory sparing feature EDAC: Add a memory repair control feature EDAC: Use string choice helper functions EDAC: Add a Error Check Scrub control feature ... |
||
|
Linus Torvalds
|
2899aa3973 |
- First part of the MPAM work: split the architectural part of resctrl from the
filesystem part so that ARM's MPAM varian of resource control can be added
later while sharing the user interface with x86 (James Morse)
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Merge tag 'x86_cache_for_v6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 resource control updates from Borislav Petkov:
- First part of the MPAM work: split the architectural part of resctrl
from the filesystem part so that ARM's MPAM varian of resource
control can be added later while sharing the user interface with x86
(James Morse)
* tag 'x86_cache_for_v6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (30 commits)
x86/resctrl: Move get_{mon,ctrl}_domain_from_cpu() to live with their callers
x86/resctrl: Move get_config_index() to a header
x86/resctrl: Handle throttle_mode for SMBA resources
x86/resctrl: Move RFTYPE flags to be managed by resctrl
x86/resctrl: Make resctrl_arch_pseudo_lock_fn() take a plr
x86/resctrl: Make prefetch_disable_bits belong to the arch code
x86/resctrl: Allow an architecture to disable pseudo lock
x86/resctrl: Add resctrl_arch_ prefix to pseudo lock functions
x86/resctrl: Move mbm_cfg_mask to struct rdt_resource
x86/resctrl: Move mba_mbps_default_event init to filesystem code
x86/resctrl: Change mon_event_config_{read,write}() to be arch helpers
x86/resctrl: Add resctrl_arch_is_evt_configurable() to abstract BMEC
x86/resctrl: Move the is_mbm_*_enabled() helpers to asm/resctrl.h
x86/resctrl: Rewrite and move the for_each_*_rdt_resource() walkers
x86/resctrl: Move monitor init work to a resctrl init call
x86/resctrl: Move monitor exit work to a resctrl exit call
x86/resctrl: Add an arch helper to reset one resource
x86/resctrl: Move resctrl types to a separate header
x86/resctrl: Move rdt_find_domain() to be visible to arch and fs code
x86/resctrl: Expose resctrl fs's init function to the rest of the kernel
...
|
||
|
Linus Torvalds
|
906174776c |
- Some preparatory work to convert the mitigations machinery to mitigating
attack vectors instead of single vulnerabilities - Untangle and remove a now unneeded X86_FEATURE_USE_IBPB flag - Add support for a Zen5-specific SRSO mitigation - Cleanups and minor improvements -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmfixS0ACgkQEsHwGGHe VUpi1xAAgvH2u8Eo8ibT5dABQpD65w3oQiykO+9aDpObG9w9beDVGlld8DJE61Rz 6tcE0Clp2H/tMcCbn8zXIJ92TQ3wIX/85uZwLi1VEM1Tx7A6VtAbPv8WKfZE3FCX 9v92HRKnK3ql+A2ZR+oyy+/8RedUmia7y7/bXH1H7Zf2uozoKkmq5cQnwfq5iU4A qNiKuvSlQwjZ8Zz6Ax1ugHUkE4R7mlKh8rccLXl4+mVr63/lkPHSY3OFTjcYf4HW Ir92N86Spfo0/l0vsOOsWoYKmoaiVP7ouJh7YbKR3B0BGN0pt2MT476mehkEs427 m4J6XhRKhIrsYmzEkLvvpsg12zO4/PKk8BEYNS7YPYlRaOwjV4ivyFS2aY6e55rh yUHyo9s+16f/Mp+/fNFXll3mdMxYBioPWh3M191nJkdfyKMrtf0MdKPRibaJB8wH yMF4D1gMx+hFbs0/VOS6dtqD9DKW7VgPg0LW+RysfhnLTuFFb5iBcH6Of7l7Z/Ca vVK+JxrhB1EDVI1+MKnESKPF9c6j3DRa2xrQHi/XYje1TGqnQ1v4CmsEObYBuJDN 9M9t4QLzNuA/DA5tS7cxxtQ3YUthuJjPLcO4EVHOCvnqCAxkzp0i3dVMUr+YISl+ 2yFqaZdTt8s8FjTI21LOyuloCo30ZLlzaorFa0lp2cIyYup+1vg= =btX/ -----END PGP SIGNATURE----- Merge tag 'x86_bugs_for_v6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 speculation mitigation updates from Borislav Petkov: - Some preparatory work to convert the mitigations machinery to mitigating attack vectors instead of single vulnerabilities - Untangle and remove a now unneeded X86_FEATURE_USE_IBPB flag - Add support for a Zen5-specific SRSO mitigation - Cleanups and minor improvements * tag 'x86_bugs_for_v6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/bugs: Make spectre user default depend on MITIGATION_SPECTRE_V2 x86/bugs: Use the cpu_smt_possible() helper instead of open-coded code x86/bugs: Add AUTO mitigations for mds/taa/mmio/rfds x86/bugs: Relocate mds/taa/mmio/rfds defines x86/bugs: Add X86_BUG_SPECTRE_V2_USER x86/bugs: Remove X86_FEATURE_USE_IBPB KVM: nVMX: Always use IBPB to properly virtualize IBRS x86/bugs: Use a static branch to guard IBPB on vCPU switch x86/bugs: Remove the X86_FEATURE_USE_IBPB check in ib_prctl_set() x86/mm: Remove X86_FEATURE_USE_IBPB checks in cond_mitigation() x86/bugs: Move the X86_FEATURE_USE_IBPB check into callers x86/bugs: KVM: Add support for SRSO_MSR_FIX |
||
|
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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-----END PGP SIGNATURE-----
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
|
64fa6b9322 |
Merge branch 'for-next/el2-enable-feat-pmuv3p9' into for-next/core
* for-next/el2-enable-feat-pmuv3p9: : Enable EL2 requirements for FEAT_PMUv3p9 arm64/boot: Enable EL2 requirements for FEAT_PMUv3p9 |
||
|
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() |
||
|
Catalin Marinas
|
8cc14fdcc1 |
Merge branches 'for-next/amuv1-avg-freq', 'for-next/pkey_unrestricted', 'for-next/sysreg', 'for-next/misc', 'for-next/pgtable-cleanups', 'for-next/kselftest', 'for-next/uaccess-mops', 'for-next/pie-poe-cleanup', 'for-next/cputype-kryo', 'for-next/cca-dma-address', 'for-next/drop-pxd_table_bit' and 'for-next/spectre-bhb-assume-vulnerable', remote-tracking branch 'arm64/for-next/perf' into for-next/core
* arm64/for-next/perf:
perf/arm_cspmu: Fix missing io.h include
perf/arm_cspmu: Add PMEVFILT2R support
perf/arm_cspmu: Generalise event filtering
perf/arm_cspmu: Move register definitons to header
drivers/perf: apple_m1: Support host/guest event filtering
drivers/perf: apple_m1: Refactor event select/filter configuration
perf/dwc_pcie: fix duplicate pci_dev devices
perf/dwc_pcie: fix some unreleased resources
perf/arm-cmn: Minor event type housekeeping
perf: arm_pmu: Move PMUv3-specific data
perf: apple_m1: Don't disable counter in m1_pmu_enable_event()
perf: arm_v7_pmu: Don't disable counter in (armv7|krait_|scorpion_)pmu_enable_event()
perf: arm_v7_pmu: Drop obvious comments for enabling/disabling counters and interrupts
perf: arm_pmuv3: Don't disable counter in armv8pmu_enable_event()
perf: arm_pmu: Don't disable counter in armpmu_add()
perf: arm_pmuv3: Call kvm_vcpu_pmu_resync_el0() before enabling counters
perf: arm_pmuv3: Add support for ARM Rainier PMU
* for-next/amuv1-avg-freq:
: Add support for AArch64 AMUv1-based average freq
arm64: Utilize for_each_cpu_wrap for reference lookup
arm64: Update AMU-based freq scale factor on entering idle
arm64: Provide an AMU-based version of arch_freq_get_on_cpu
cpufreq: Introduce an optional cpuinfo_avg_freq sysfs entry
cpufreq: Allow arch_freq_get_on_cpu to return an error
arch_topology: init capacity_freq_ref to 0
* for-next/pkey_unrestricted:
: mm/pkey: Add PKEY_UNRESTRICTED macro
selftest/powerpc/mm/pkey: fix build-break introduced by commit
|
||
|
Linus Torvalds
|
317a76a996 |
Updates for the VDSO infrastructure:
- Consolidate the VDSO storage
The VDSO data storage and data layout has been largely architecture
specific for historical reasons. That increases the maintenance effort
and causes inconsistencies over and over.
There is no real technical reason for architecture specific layouts and
implementations. The architecture specific details can easily be
integrated into a generic layout, which also reduces the amount of
duplicated code for managing the mappings.
Convert all architectures over to a unified layout and common mapping
infrastructure. This splits the VDSO data layout into subsystem
specific blocks, timekeeping, random and architecture parts, which
provides a better structure and allows to improve and update the
functionalities without conflict and interaction.
- Rework the timekeeping data storage
The current implementation is designed for exposing system timekeeping
accessors, which was good enough at the time when it was designed.
PTP and Time Sensitive Networking (TSN) change that as there are
requirements to expose independent PTP clocks, which are not related to
system timekeeping.
Replace the monolithic data storage by a structured layout, which
allows to add support for independent PTP clocks on top while reusing
both the data structures and the time accessor implementations.
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Merge tag 'timers-vdso-2025-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull VDSO infrastructure updates from Thomas Gleixner:
- Consolidate the VDSO storage
The VDSO data storage and data layout has been largely architecture
specific for historical reasons. That increases the maintenance
effort and causes inconsistencies over and over.
There is no real technical reason for architecture specific layouts
and implementations. The architecture specific details can easily be
integrated into a generic layout, which also reduces the amount of
duplicated code for managing the mappings.
Convert all architectures over to a unified layout and common mapping
infrastructure. This splits the VDSO data layout into subsystem
specific blocks, timekeeping, random and architecture parts, which
provides a better structure and allows to improve and update the
functionalities without conflict and interaction.
- Rework the timekeeping data storage
The current implementation is designed for exposing system
timekeeping accessors, which was good enough at the time when it was
designed.
PTP and Time Sensitive Networking (TSN) change that as there are
requirements to expose independent PTP clocks, which are not related
to system timekeeping.
Replace the monolithic data storage by a structured layout, which
allows to add support for independent PTP clocks on top while reusing
both the data structures and the time accessor implementations.
* tag 'timers-vdso-2025-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (55 commits)
sparc/vdso: Always reject undefined references during linking
x86/vdso: Always reject undefined references during linking
vdso: Rework struct vdso_time_data and introduce struct vdso_clock
vdso: Move architecture related data before basetime data
powerpc/vdso: Prepare introduction of struct vdso_clock
arm64/vdso: Prepare introduction of struct vdso_clock
x86/vdso: Prepare introduction of struct vdso_clock
time/namespace: Prepare introduction of struct vdso_clock
vdso/namespace: Rename timens_setup_vdso_data() to reflect new vdso_clock struct
vdso/vsyscall: Prepare introduction of struct vdso_clock
vdso/gettimeofday: Prepare helper functions for introduction of struct vdso_clock
vdso/gettimeofday: Prepare do_coarse_timens() for introduction of struct vdso_clock
vdso/gettimeofday: Prepare do_coarse() for introduction of struct vdso_clock
vdso/gettimeofday: Prepare do_hres_timens() for introduction of struct vdso_clock
vdso/gettimeofday: Prepare do_hres() for introduction of struct vdso_clock
vdso/gettimeofday: Prepare introduction of struct vdso_clock
vdso/helpers: Prepare introduction of struct vdso_clock
vdso/datapage: Define vdso_clock to prepare for multiple PTP clocks
vdso: Make vdso_time_data cacheline aligned
arm64: Make asm/cache.h compatible with vDSO
...
|
||
|
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
|
d5048d1176 |
Updates for the core time/timer subsystem:
- Fix a memory ordering issue in posix-timers
Posix-timer lookup is lockless and reevaluates the timer validity under
the timer lock, but the update which validates the timer is not
protected by the timer lock. That allows the store to be reordered
against the initialization stores, so that the lookup side can observe
a partially initialized timer. That's mostly a theoretical problem, but
incorrect nevertheless.
- Fix a long standing inconsistency of the coarse time getters
The coarse time getters read the base time of the current update cycle
without reading the actual hardware clock. NTP frequency adjustment can
set the base time backwards. The fine grained interfaces compensate
this by reading the clock and applying the new conversion factor, but
the coarse grained time getters use the base time directly. That allows
the user to observe time going backwards.
Cure it by always forwarding base time, when NTP changes the frequency
with an immediate step.
- Rework of posix-timer hashing
The posix-timer hash is not scalable and due to the CRIU timer restore
mechanism prone to massive contention on the global hash bucket lock.
Replace the global hash lock with a fine grained per bucket locking
scheme to address that.
- Rework the proc/$PID/timers interface.
/proc/$PID/timers is provided for CRIU to be able to restore a
timer. The printout happens with sighand lock held and interrupts
disabled. That's not required as this can be done with RCU protection
as well.
- Provide a sane mechanism for CRIU to restore a timer ID
CRIU restores timers by creating and deleting them until the kernel
internal per process ID counter reached the requested ID. That's
horribly slow for sparse timer IDs.
Provide a prctl() which allows CRIU to restore a timer with a given
ID. When enabled the ID pointer is used as input pointer to read the
requested ID from user space. When disabled, the normal allocation
scheme (next ID) is active as before. This is backwards compatible for
both kernel and user space.
- Make hrtimer_update_function() less expensive.
The sanity checks are valuable, but expensive for high frequency usage
in io/uring. Make the debug checks conditional and enable them only
when lockdep is enabled.
- Small updates, cleanups and improvements
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Merge tag 'timers-core-2025-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer core updates from Thomas Gleixner:
- Fix a memory ordering issue in posix-timers
Posix-timer lookup is lockless and reevaluates the timer validity
under the timer lock, but the update which validates the timer is not
protected by the timer lock. That allows the store to be reordered
against the initialization stores, so that the lookup side can
observe a partially initialized timer. That's mostly a theoretical
problem, but incorrect nevertheless.
- Fix a long standing inconsistency of the coarse time getters
The coarse time getters read the base time of the current update
cycle without reading the actual hardware clock. NTP frequency
adjustment can set the base time backwards. The fine grained
interfaces compensate this by reading the clock and applying the new
conversion factor, but the coarse grained time getters use the base
time directly. That allows the user to observe time going backwards.
Cure it by always forwarding base time, when NTP changes the
frequency with an immediate step.
- Rework of posix-timer hashing
The posix-timer hash is not scalable and due to the CRIU timer
restore mechanism prone to massive contention on the global hash
bucket lock.
Replace the global hash lock with a fine grained per bucket locking
scheme to address that.
- Rework the proc/$PID/timers interface.
/proc/$PID/timers is provided for CRIU to be able to restore a timer.
The printout happens with sighand lock held and interrupts disabled.
That's not required as this can be done with RCU protection as well.
- Provide a sane mechanism for CRIU to restore a timer ID
CRIU restores timers by creating and deleting them until the kernel
internal per process ID counter reached the requested ID. That's
horribly slow for sparse timer IDs.
Provide a prctl() which allows CRIU to restore a timer with a given
ID. When enabled the ID pointer is used as input pointer to read the
requested ID from user space. When disabled, the normal allocation
scheme (next ID) is active as before. This is backwards compatible
for both kernel and user space.
- Make hrtimer_update_function() less expensive.
The sanity checks are valuable, but expensive for high frequency
usage in io/uring. Make the debug checks conditional and enable them
only when lockdep is enabled.
- Small updates, cleanups and improvements
* tag 'timers-core-2025-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (27 commits)
selftests/timers: Improve skew_consistency by testing with other clockids
timekeeping: Fix possible inconsistencies in _COARSE clockids
posix-timers: Drop redundant memset() invocation
selftests/timers/posix-timers: Add a test for exact allocation mode
posix-timers: Provide a mechanism to allocate a given timer ID
posix-timers: Dont iterate /proc/$PID/timers with sighand:: Siglock held
posix-timers: Make per process list RCU safe
posix-timers: Avoid false cacheline sharing
posix-timers: Switch to jhash32()
posix-timers: Improve hash table performance
posix-timers: Make signal_struct:: Next_posix_timer_id an atomic_t
posix-timers: Make lock_timer() use guard()
posix-timers: Rework timer removal
posix-timers: Simplify lock/unlock_timer()
posix-timers: Use guards in a few places
posix-timers: Remove SLAB_PANIC from kmem cache
posix-timers: Remove a few paranoid warnings
posix-timers: Cleanup includes
posix-timers: Add cond_resched() to posix_timer_add() search loop
posix-timers: Initialise timer before adding it to the hash table
...
|
||
|
Linus Torvalds
|
0ae2062ee3 |
A single update for futexes:
Use a precomputed mask for the hash computation instead of computing the mask from the size on every invocation. -----BEGIN PGP SIGNATURE----- iQJHBAABCgAxFiEEQp8+kY+LLUocC4bMphj1TA10mKEFAmff5PETHHRnbHhAbGlu dXRyb25peC5kZQAKCRCmGPVMDXSYoTCJEADEYDoQGkMCwUoTDJ4xVLohb89lH4KN cB38tF0YtHDMoBk2AXzHvDJioqPr5+YRQn3cYVpqQ6ajV0fVay8XDIdbD0GrhSUk KSiz6sfIVT8c18bvgK/YrnQL0B5AytY5X+hYd3A5tS7NHlKNs3nHuZetNFrklDUM RI7dY2dOU0jjzEB1WFMSIU2gIt/B9994fd+uhsSfKhJgVojOO5VpuREzMRb5nTYr sZRvel9JqfvADz1Wr9DpX5JGQ65m1uEXFK8bbdYemJmqqKbdQt0pEWWLC5PJkhNJ z9vih+TPJqx7THNgind+KNNO7Yf3V1aKiks+GKVOn0WplhybmlhqqYdfSgzFZOpR BymsxPQ9AQRf7O+j23f5Ys1Ty/1mc+ZcKYPCmasoG3MngmMt6nS+7nwiK1lnZEYQ hd7EpFKl8pPe3Ga5Cp6iFj64vIna5eMGQ0vFL7DqCY8mnzDnqhZBMk6xrJ/QEgXj rpLYKwDXz34EwOKSuWtFQcds4HUDeOxdJQCSbmfpQo4wh08HmcNK+lr3PXub6a7y ncEFOD4rmRLXfofQyF/m4MKwv5I/nwkSNDQh/hLNfHrmWxGZPE8J9vFJccQcAsf6 2vL5G0cNTKjNA5Afsi8bpi8Khlo9hJTW18Sw7DegpEwJxJjww723X+3Ati8qTjtr clVhRAfjHPp5WQ== =GyIS -----END PGP SIGNATURE----- Merge tag 'locking-futex-2025-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull futex update from Thomas Gleixner: "A single update for futexes: Use a precomputed mask for the hash computation instead of computing the mask from the size on every invocation" * tag 'locking-futex-2025-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: futex: Use a hashmask instead of hashsize |
||
|
Linus Torvalds
|
0f40464674 |
Updates for interrupt chip drivers:
- Support for hard indices on RISC-V. The hart index identifies a hart
(core) within a specific interrupt domain in RISC-V's Priviledged
Architecture.
- Rework of the RISC-V MSI driver.
This moves the driver over to the generic MSI library and solves the
affinity problem of unmaskable PCI/MSI controllers. Unmaskable PCI/MSI
controllers are prone to lose interrupts when the MSI message is
updated to change the affinity because the message write consists of
three 32-bit subsequent writes, which update address and data. As these
writes are non-atomic versus the device raising an interrupt, the
device can observe a half written update and issue an interrupt on the
wrong vector. This is mitiated by a carefully orchestrated step by step
update and the observation of an eventually pending interrupt on the
CPU which issues the update. The algorithm follows the well established
method of the X86 MSI driver.
- A new driver for the RISC-V Sophgo SG2042 MSI controller
- Overhaul of the Renesas RZQ2L driver.
Simplification of the probe function by using devm_*() mechanisms,
which avoid the endless list of error prone gotos in the failure paths.
- Expand the Renesas RZV2H driver to support RZ/G3E SoCs
- A workaround for Rockchip 3568002 erratum in the GIC-V3 driver to
ensure that the addressing is limited to the lower 32-bit of the
physical address space.
- Add support for the Allwinner AS23 NMI controller
- Expand the IMX irqsteer driver to handle up to 960 input interrupts
- The usual small updates, cleanups and device tree changes.
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Merge tag 'irq-drivers-2025-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq driver updates from Thomas Gleixner:
- Support for hard indices on RISC-V. The hart index identifies a hart
(core) within a specific interrupt domain in RISC-V's Priviledged
Architecture.
- Rework of the RISC-V MSI driver
This moves the driver over to the generic MSI library and solves the
affinity problem of unmaskable PCI/MSI controllers. Unmaskable
PCI/MSI controllers are prone to lose interrupts when the MSI message
is updated to change the affinity because the message write consists
of three 32-bit subsequent writes, which update address and data. As
these writes are non-atomic versus the device raising an interrupt,
the device can observe a half written update and issue an interrupt
on the wrong vector. This is mitiated by a carefully orchestrated
step by step update and the observation of an eventually pending
interrupt on the CPU which issues the update. The algorithm follows
the well established method of the X86 MSI driver.
- A new driver for the RISC-V Sophgo SG2042 MSI controller
- Overhaul of the Renesas RZQ2L driver
Simplification of the probe function by using devm_*() mechanisms,
which avoid the endless list of error prone gotos in the failure
paths.
- Expand the Renesas RZV2H driver to support RZ/G3E SoCs
- A workaround for Rockchip 3568002 erratum in the GIC-V3 driver to
ensure that the addressing is limited to the lower 32-bit of the
physical address space.
- Add support for the Allwinner AS23 NMI controller
- Expand the IMX irqsteer driver to handle up to 960 input interrupts
- The usual small updates, cleanups and device tree changes
* tag 'irq-drivers-2025-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (40 commits)
irqchip/imx-irqsteer: Support up to 960 input interrupts
irqchip/sunxi-nmi: Support Allwinner A523 NMI controller
dt-bindings: irq: sun7i-nmi: Document the Allwinner A523 NMI controller
irqchip/davinci-cp-intc: Remove public header
irqchip/renesas-rzv2h: Add RZ/G3E support
irqchip/renesas-rzv2h: Update macros ICU_TSSR_TSSEL_{MASK,PREP}
irqchip/renesas-rzv2h: Update TSSR_TIEN macro
irqchip/renesas-rzv2h: Add field_width to struct rzv2h_hw_info
irqchip/renesas-rzv2h: Add max_tssel to struct rzv2h_hw_info
irqchip/renesas-rzv2h: Add struct rzv2h_hw_info with t_offs variable
irqchip/renesas-rzv2h: Use devm_pm_runtime_enable()
irqchip/renesas-rzv2h: Use devm_reset_control_get_exclusive_deasserted()
irqchip/renesas-rzv2h: Simplify rzv2h_icu_init()
irqchip/renesas-rzv2h: Drop irqchip from struct rzv2h_icu_priv
irqchip/renesas-rzv2h: Fix wrong variable usage in rzv2h_tint_set_type()
dt-bindings: interrupt-controller: renesas,rzv2h-icu: Document RZ/G3E SoC
riscv: sophgo: dts: Add msi controller for SG2042
irqchip: Add the Sophgo SG2042 MSI interrupt controller
dt-bindings: interrupt-controller: Add Sophgo SG2042 MSI
arm64: dts: rockchip: rk356x: Move PCIe MSI to use GIC ITS instead of MBI
...
|
||
|
Linus Torvalds
|
36f5f026df |
Updates for MSI interrupts
- Switch the MSI descriptor locking to guards
- Replace the broken PCI/TPH implementation, which lacks any form of
serialization against concurrent modifications with a properly
serialized mechanism in the PCI/MSI core code.
- Replace the MSI descriptor abuse in the SCSI/UFS Qualcom driver with
dedicated driver internal storage.
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Merge tag 'irq-msi-2025-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull MSI irq updates from Thomas Gleixner:
- Switch the MSI descriptor locking to guards
- Replace the broken PCI/TPH implementation, which lacks any form of
serialization against concurrent modifications with a properly
serialized mechanism in the PCI/MSI core code
- Replace the MSI descriptor abuse in the SCSI/UFS Qualcom driver with
dedicated driver internal storage
* tag 'irq-msi-2025-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
genirq/msi: Rename msi_[un]lock_descs()
scsi: ufs: qcom: Remove the MSI descriptor abuse
PCI/TPH: Replace the broken MSI-X control word update
PCI/MSI: Provide a sane mechanism for TPH
PCI: hv: Switch MSI descriptor locking to guard()
PCI/MSI: Switch to MSI descriptor locking to guard()
NTB/msi: Switch MSI descriptor locking to lock guard()
soc: ti: ti_sci_inta_msi: Switch MSI descriptor locking to guard()
genirq/msi: Use lock guards for MSI descriptor locking
cleanup: Provide retain_ptr()
genirq/msi: Make a few functions static
|
||
|
Linus Torvalds
|
43a7eec035 |
A small set of core changes for the interrupt subsystem:
- Expose the MSI message in the existing debug filesystem dump. That's
useful for validation and debugging.
- Small cleanups
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Merge tag 'irq-core-2025-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq updates from Thomas Gleixner:
"A small set of core changes for the interrupt subsystem:
- Expose the MSI message in the existing debug filesystem dump.
That's useful for validation and debugging.
- Small cleanups"
* tag 'irq-core-2025-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
genirq: Make a few functions static
irqdomain: Remove extern from function declarations
genirq/msi: Expose MSI message data in debugfs
|
||
|
Borislav Petkov (AMD)
|
298ffd5375 |
Merge remote-tracking branches 'ras/edac-cxl', 'ras/edac-drivers' and 'ras/edac-misc' into edac-updates
* ras/edac-cxl:
EDAC/device: Fix dev_set_name() format string
EDAC: Update memory repair control interface for memory sparing feature
EDAC: Add a memory repair control feature
EDAC: Add a Error Check Scrub control feature
EDAC: Add scrub control feature
EDAC: Add support for EDAC device features control
* ras/edac-drivers:
EDAC/ie31200: Switch Raptor Lake-S to interrupt mode
EDAC/ie31200: Add Intel Raptor Lake-S SoCs support
EDAC/ie31200: Break up ie31200_probe1()
EDAC/ie31200: Fold the two channel loops into one loop
EDAC/ie31200: Make struct dimm_data contain decoded information
EDAC/ie31200: Make the memory controller resources configurable
EDAC/ie31200: Simplify the pci_device_id table
EDAC/ie31200: Fix the 3rd parameter name of *populate_dimm_info()
EDAC/ie31200: Fix the error path order of ie31200_init()
EDAC/ie31200: Fix the DIMM size mask for several SoCs
EDAC/ie31200: Fix the size of EDAC_MC_LAYER_CHIP_SELECT layer
EDAC/{skx_common,i10nm}: Fix some missing error reports on Emerald Rapids
EDAC/igen6: Fix the flood of invalid error reports
EDAC/ie31200: work around false positive build warning
* ras/edac-misc:
MAINTAINERS: Add a secondary maintainer for bluefield_edac
EDAC/pnd2: Make read-only const array intlv static
EDAC/igen6: Constify struct res_config
EDAC/amd64: Simplify return statement in dct_ecc_enabled()
EDAC: Use string choice helper functions
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
|
||
|
Linus Torvalds
|
2df0c02dab |
x86 boot build: make git ignore stale 'tools' directory
We've had this before: when we remove infrastructure to generate files, the old stale build artifacts still remain in-tree. And when the infrastructure to generate them is gone, so is the gitignore file for those build artifacts. End result: git will see the old generated files, and people will mistakenly commit them. That's what happened with the 'genheaders' file not that long ago (see commit |
||
|
Linus Torvalds
|
001a3a0c6a |
Two small cleanups in the x86 platform support code.
Signed-off-by: Ingo Molnar <mingo@kernel.org> -----BEGIN PGP SIGNATURE----- iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmfepu4RHG1pbmdvQGtl cm5lbC5vcmcACgkQEnMQ0APhK1gDlxAAjHZwjixviNtICUdOmvx1NwG4MX2w/Wcy zF1PJWWkcxD7xlp6JXUgQFwJ6BLBj2UulJ3+5yrhv8InzAacfCdSgocrzmriYB9g Zmw72nFXvj1aR70uS2Fs838ngHJ/SUDpHTRCOddl5mUEA6GxGzT71Zz1bykBRado w0y0Nv3U0kuROGk/iQa6O9N3bFubQfP7KlfWEpEklrgP8NwFyZYsTX/b33N529TL 8SDJn/dOpBl5ZsHOSxYlZYtT/bpD+plWxZ0VpA92Drw3pZDgAnoWPVd4ADCJw1XX GFVwWlEO3kuKEQ4F2AFJeZDqK2aHgeevSnDX6PA5f5bDhmU8T1/2/dwASfbCAEEa 1ZwHmuqYtxay6iISliTmIaxnC6a++m81tHQJVpnNcp3Ngl3EJ/c1Rve7W5YOz0E9 RMPJU3mqb+i2C9IUgCiW7f75W4fIyisOmURGhOKTVH3J3VeX/nu5Ggm5Egwf3Wjj 0Q+JTDRDkUa6hmgeBFm2T1ugCfYr0nYxicoEvNFrvm6cR8SdaKwYJXZLF4ZW7Ekn EFnk5mTtCPe1VxtpRAf9Dt4rIqbzLcXsGiJaqb5ZWOpVMqNGmAX4Kct3VOLTEFMr CKbso3jMt2iTnL8Z4THVbJDk6k7rJZ11Bg7xYZVHkZwaFAOZ5AHmj673aCgdwl6J LM0sho6i45g= =eh6a -----END PGP SIGNATURE----- Merge tag 'x86-platform-2025-03-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 platform updates from Ingo Molnar: "Two small cleanups in the x86 platform support code" * tag 'x86-platform-2025-03-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/platform/olpc: Remove unused variable 'len' in olpc_dt_compatible_match() x86/platform/olpc-xo1-sci: Don't include <linux/pm_wakeup.h> directly |
||
|
Linus Torvalds
|
8ac6067bd8 |
x86/sev updates for v6.15:
- Improve sme_enable() PIC build robustness (Kevin Loughlin) - Simplify vc_handle_msr() a bit (Peng Hao) Signed-off-by: Ingo Molnar <mingo@kernel.org> -----BEGIN PGP SIGNATURE----- iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmfep+kRHG1pbmdvQGtl cm5lbC5vcmcACgkQEnMQ0APhK1jneRAAgpKFXI9V1lmjJLpGDyjiVDlD27Y7eQcB geOw3zkVO9MRl4cz30gO7kvGnJaTEDDTCE0MDIy7kpyYdP6xnNoJJj3jtWIUPdx9 Q0PvgRWcAjmJHet2f8y/x4iIQKQrgoplovnzBssAC0bXo1bb2mtlY9c0dSMYAD4M j9n2Qar+9xqUNDqO/N3MzGxP8fJBpPNvdvkrMOmOy09gY7Co2hTCZlRlbC2LRLU+ VYPre6L1qsKeS4GrsKRzNI4LKMux+6nx2TOEkzg2KHZ7jZgsQY4zHlq1CyZ6FUFk IhC5+V3lAlwxmWgZWqo1zgv7up+OrelNXqBWZMDg5QC197xZO10xs2dNtWWPpQZc 1sdydznYy18pPVPinspyNleYw/y79Spe0/KBHHC//et8epgRFPA8Fey6QObqr6mc RRtR0xa+IGwrDWAKN03gvxwk9XXpV15HIp19hCl2QYmAgY4FYf7jB9nnrIOe3RSd W1NWE0Q5VE2jn9Ysr2etGnu8rAPKjyadoKK1Oi6kAoO7xn/tR0zzXtsVv7g9bLor LufAPDH/jjer7eDKxCOzOyhzFwrszaPrygH53hzIKQG3qdJF2FfzixozKuQBTopV S4xlkINgDC60aa45w8beZ0ufQTpzE9iXGti2u2v5UzSPRhOWvna2OBAw/fVkWOg9 E/xJWHwYv0E= =6fVl -----END PGP SIGNATURE----- Merge tag 'x86-sev-2025-03-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 SEV updates from Ingo Molnar: - Improve sme_enable() PIC build robustness (Kevin Loughlin) - Simplify vc_handle_msr() a bit (Peng Hao) [ Just reminding myself and everybody else about the endless stream of x86 TLAs: "SEV" is AMD's Secure Encrypted Virtualization - Linus ] * tag 'x86-sev-2025-03-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/sev: Simplify the code by removing unnecessary 'else' statement x86/sev: Add missing RIP_REL_REF() invocations during sme_enable() |
||
|
Linus Torvalds
|
a49a879f0a |
Miscellaneous x86 cleanups by Arnd Bergmann, Charles Han,
Mirsad Todorovac, Randy Dunlap, Thorsten Blum and Zhang Kunbo. Signed-off-by: Ingo Molnar <mingo@kernel.org> -----BEGIN PGP SIGNATURE----- iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmfeo6ERHG1pbmdvQGtl cm5lbC5vcmcACgkQEnMQ0APhK1gl9w//ZRxGhf3eXYVyPW35aoqaRe7W3fBJhaPn eLP0JuuglZO3JSTJfmbTmSXrNN4kkzI3nnuTnchK0iYZ+2Tn4E0iaz4tm5sjL5T1 KW9ajv7QQxMOwXS69hrklY/eGxVimfs4mIyhxEhxLjPvzbGJOVS6WFgvaYH5klQQ 7sPYXzrNGZJhGCmRqCelHSPhl7b6YVS/yWtMe+BpPBn1AqIQN+O+S/Kbu7dQokmq 7MNy4eUe7GYgnSB7Qhq/jNSqjmGWsVwhMiuoDxx7GvShM73+kYatQZT0H+qzTxzp 90rIPcPTNCOlKJO3xSWqXStcMH00MbplOhKdEU6SzeM+xC2aD2t4GoIG0EFxIQdS X0wh40Psm5GehThhpmMBJdmM4Le4TTSkHBhedpQ+sp+6BIX4A9hoeCoybIlcngaJ W89YKHqC5ruPSRDOzyaTMSypaEGH5VHP6AMj0CmkuyHRbxADsMazifpOVOw9AvVk IR0USCzyenjLMiugRrJgRpy8R2Q1jp35bP0e7Y4QvmydEGC1Wl5mW5Y8B9Zdlk0C iuxoqwntem7PAkEA2JejW6rzuRICxXloKv+xjtQjKzXpK+pwhhSp830zT8gaWZ1Z hdQRz7gSlJg3JzWinX8+XNusdHw9TxCUqwgLw8486nzNp01GU62gby5DWgECEdae 2IyRRSd0FyA= =GsK4 -----END PGP SIGNATURE----- Merge tag 'x86-cleanups-2025-03-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 cleanups from Ingo Molnar: "Miscellaneous x86 cleanups by Arnd Bergmann, Charles Han, Mirsad Todorovac, Randy Dunlap, Thorsten Blum and Zhang Kunbo" * tag 'x86-cleanups-2025-03-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/coco: Replace 'static const cc_mask' with the newly introduced cc_get_mask() function x86/delay: Fix inconsistent whitespace selftests/x86/syscall: Fix coccinelle WARNING recommending the use of ARRAY_SIZE() x86/platform: Fix missing declaration of 'x86_apple_machine' x86/irq: Fix missing declaration of 'io_apic_irqs' x86/usercopy: Fix kernel-doc func param name in clean_cache_range()'s description x86/apic: Use str_disabled_enabled() helper in print_ipi_mode() |
||
|
Linus Torvalds
|
71b639af06 |
x86/fpu updates for v6.15:
- Improve crypto performance by making kernel-mode FPU reliably usable
in softirqs ((Eric Biggers)
- Fully optimize out WARN_ON_FPU() (Eric Biggers)
- Initial steps to support Support Intel APX (Advanced Performance Extensions)
(Chang S. Bae)
- Fix KASAN for arch_dup_task_struct() (Benjamin Berg)
- Refine and simplify the FPU magic number check during signal return
(Chang S. Bae)
- Fix inconsistencies in guest FPU xfeatures (Chao Gao, Stanislav Spassov)
- selftests/x86/xstate: Introduce common code for testing extended states
(Chang S. Bae)
- Misc fixes and cleanups (Borislav Petkov, Colin Ian King, Uros Bizjak)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-fpu-2025-03-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86/fpu updates from Ingo Molnar:
- Improve crypto performance by making kernel-mode FPU reliably usable
in softirqs ((Eric Biggers)
- Fully optimize out WARN_ON_FPU() (Eric Biggers)
- Initial steps to support Support Intel APX (Advanced Performance
Extensions) (Chang S. Bae)
- Fix KASAN for arch_dup_task_struct() (Benjamin Berg)
- Refine and simplify the FPU magic number check during signal return
(Chang S. Bae)
- Fix inconsistencies in guest FPU xfeatures (Chao Gao, Stanislav
Spassov)
- selftests/x86/xstate: Introduce common code for testing extended
states (Chang S. Bae)
- Misc fixes and cleanups (Borislav Petkov, Colin Ian King, Uros
Bizjak)
* tag 'x86-fpu-2025-03-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/fpu/xstate: Fix inconsistencies in guest FPU xfeatures
x86/fpu: Clarify the "xa" symbolic name used in the XSTATE* macros
x86/fpu: Use XSAVE{,OPT,C,S} and XRSTOR{,S} mnemonics in xstate.h
x86/fpu: Improve crypto performance by making kernel-mode FPU reliably usable in softirqs
x86/fpu/xstate: Simplify print_xstate_features()
x86/fpu: Refine and simplify the magic number check during signal return
selftests/x86/xstate: Fix spelling mistake "hader" -> "header"
x86/fpu: Avoid copying dynamic FP state from init_task in arch_dup_task_struct()
vmlinux.lds.h: Remove entry to place init_task onto init_stack
selftests/x86/avx: Add AVX tests
selftests/x86/xstate: Clarify supported xstates
selftests/x86/xstate: Consolidate test invocations into a single entry
selftests/x86/xstate: Introduce signal ABI test
selftests/x86/xstate: Refactor ptrace ABI test
selftests/x86/xstate: Refactor context switching test
selftests/x86/xstate: Enumerate and name xstate components
selftests/x86/xstate: Refactor XSAVE helpers for general use
selftests/x86: Consolidate redundant signal helper functions
x86/fpu: Fix guest FPU state buffer allocation size
x86/fpu: Fully optimize out WARN_ON_FPU()
|
||
|
Linus Torvalds
|
b58386a9bd |
Updates to the x86 boot code for the v6.15 cycle:
- Memblock setup and other early boot code cleanups (Mike Rapoport) - Export e820_table_kexec[] to sysfs (Dave Young) - Baby steps of adding relocate_kernel() debugging support (David Woodhouse) - Replace open-coded parity calculation with parity8() (Kuan-Wei Chiu) - Move the LA57 trampoline to separate source file (Ard Biesheuvel) - Misc micro-optimizations (Uros Bizjak) - Drop obsolete E820_TYPE_RESERVED_KERN and related code (Mike Rapoport) Signed-off-by: Ingo Molnar <mingo@kernel.org> -----BEGIN PGP SIGNATURE----- iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmfeoawRHG1pbmdvQGtl cm5lbC5vcmcACgkQEnMQ0APhK1gCRBAAm5MwAxTOtqRQtwUBkbGB8HEfjCHJTLIe FiLLric6lHEn2uVw/9uhlN646pWxa+487QtxRAHlR2hpm0JyEiZkawhFpnWWx8s6 WXdLVPK+CNQNKgcWC2AsIj7C71JcKBNJI2Lj8/p9Cn3AgB0s7m4e3GfuugMk43Lq aw8JHd1zzqyT9NsdfNkglwn12iui9Y0t7q0EuZgQhRXLvThwZZblJg+dvub30LGg FE2QM4dQC4K0IUhE42ea5wWylX3tmiDYpdEH/CwxPobfra4kMxnoUrrh9Dk82cma QR3wwOc4JZ6mXUWVumbtk+cyUvZ1wTGFgiSUGmomkoKz9dJewqNV4b6iRa5URGzG izZaAZyJDQk9r2dCnwLbjzQjr2SHXLvvTpmS8AlAyOEPTnc+388Fg4h4oL9N/rcM ZIxxKpfuSjiWT8tRGKGPePhqAIg7kllk/w3zSkyAsx9/DG/UrLhpLSzq0+4GPQ0E d0V6WwX41iouoAH+kmDDj3KkaezQ/ZfXcxKk2d3wSCvIEMfJkSSXFBDlanE+skrM x/0QCWVyN5zajYEEoWv8WoXov7Q67Ar6HdxtPRLtQcd/ZhpTFeq4wuitV+4phb3m twWQo43wkMI5jFf9U2b+PD//8PWfcBJhzP0BEN8rNJaq8KVa93eHsOpMqZK+5wC6 q03Wx00ewfE= =cUeH -----END PGP SIGNATURE----- Merge tag 'x86-boot-2025-03-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 boot code updates from Ingo Molnar: - Memblock setup and other early boot code cleanups (Mike Rapoport) - Export e820_table_kexec[] to sysfs (Dave Young) - Baby steps of adding relocate_kernel() debugging support (David Woodhouse) - Replace open-coded parity calculation with parity8() (Kuan-Wei Chiu) - Move the LA57 trampoline to separate source file (Ard Biesheuvel) - Misc micro-optimizations (Uros Bizjak) - Drop obsolete E820_TYPE_RESERVED_KERN and related code (Mike Rapoport) * tag 'x86-boot-2025-03-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/kexec: Add relocate_kernel() debugging support: Load a GDT x86/boot: Move the LA57 trampoline to separate source file x86/boot: Do not test if AC and ID eflags are changeable on x86_64 x86/bootflag: Replace open-coded parity calculation with parity8() x86/bootflag: Micro-optimize sbf_write() x86/boot: Add missing has_cpuflag() prototype x86/kexec: Export e820_table_kexec[] to sysfs x86/boot: Change some static bootflag functions to bool x86/e820: Drop obsolete E820_TYPE_RESERVED_KERN and related code x86/boot: Split parsing of boot_params into the parse_boot_params() helper function x86/boot: Split kernel resources setup into the setup_kernel_resources() helper function x86/boot: Move setting of memblock parameters to e820__memblock_setup() |
||
|
Linus Torvalds
|
ebfb94d87b |
x86/build updates for v6.15:
- Drop CRC-32 checksum and the build tool that generates it
(Ard Biesheuvel)
- Fix broken copy command in genimage.sh when making isoimage
(Nir Lichtman)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-build-2025-03-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 build updates from Ingo Molnar:
- Drop CRC-32 checksum and the build tool that generates it (Ard
Biesheuvel)
- Fix broken copy command in genimage.sh when making isoimage (Nir
Lichtman)
* tag 'x86-build-2025-03-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/boot: Add back some padding for the CRC-32 checksum
x86/boot: Drop CRC-32 checksum and the build tool that generates it
x86/build: Fix broken copy command in genimage.sh when making isoimage
|
||
|
Linus Torvalds
|
e34c38057a |
[ Merge note: this pull request depends on you having merged
two locking commits in the locking tree,
part of the locking-core-2025-03-22 pull request. ]
x86 CPU features support:
- Generate the <asm/cpufeaturemasks.h> header based on build config
(H. Peter Anvin, Xin Li)
- x86 CPUID parsing updates and fixes (Ahmed S. Darwish)
- Introduce the 'setcpuid=' boot parameter (Brendan Jackman)
- Enable modifying CPU bug flags with '{clear,set}puid='
(Brendan Jackman)
- Utilize CPU-type for CPU matching (Pawan Gupta)
- Warn about unmet CPU feature dependencies (Sohil Mehta)
- Prepare for new Intel Family numbers (Sohil Mehta)
Percpu code:
- Standardize & reorganize the x86 percpu layout and
related cleanups (Brian Gerst)
- Convert the stackprotector canary to a regular percpu
variable (Brian Gerst)
- Add a percpu subsection for cache hot data (Brian Gerst)
- Unify __pcpu_op{1,2}_N() macros to __pcpu_op_N() (Uros Bizjak)
- Construct __percpu_seg_override from __percpu_seg (Uros Bizjak)
MM:
- Add support for broadcast TLB invalidation using AMD's INVLPGB instruction
(Rik van Riel)
- Rework ROX cache to avoid writable copy (Mike Rapoport)
- PAT: restore large ROX pages after fragmentation
(Kirill A. Shutemov, Mike Rapoport)
- Make memremap(MEMREMAP_WB) map memory as encrypted by default
(Kirill A. Shutemov)
- Robustify page table initialization (Kirill A. Shutemov)
- Fix flush_tlb_range() when used for zapping normal PMDs (Jann Horn)
- Clear _PAGE_DIRTY for kernel mappings when we clear _PAGE_RW
(Matthew Wilcox)
KASLR:
- x86/kaslr: Reduce KASLR entropy on most x86 systems,
to support PCI BAR space beyond the 10TiB region
(CONFIG_PCI_P2PDMA=y) (Balbir Singh)
CPU bugs:
- Implement FineIBT-BHI mitigation (Peter Zijlstra)
- speculation: Simplify and make CALL_NOSPEC consistent (Pawan Gupta)
- speculation: Add a conditional CS prefix to CALL_NOSPEC (Pawan Gupta)
- RFDS: Exclude P-only parts from the RFDS affected list (Pawan Gupta)
System calls:
- Break up entry/common.c (Brian Gerst)
- Move sysctls into arch/x86 (Joel Granados)
Intel LAM support updates: (Maciej Wieczor-Retman)
- selftests/lam: Move cpu_has_la57() to use cpuinfo flag
- selftests/lam: Skip test if LAM is disabled
- selftests/lam: Test get_user() LAM pointer handling
AMD SMN access updates:
- Add SMN offsets to exclusive region access (Mario Limonciello)
- Add support for debugfs access to SMN registers (Mario Limonciello)
- Have HSMP use SMN through AMD_NODE (Yazen Ghannam)
Power management updates: (Patryk Wlazlyn)
- Allow calling mwait_play_dead with an arbitrary hint
- ACPI/processor_idle: Add FFH state handling
- intel_idle: Provide the default enter_dead() handler
- Eliminate mwait_play_dead_cpuid_hint()
Bootup:
Build system:
- Raise the minimum GCC version to 8.1 (Brian Gerst)
- Raise the minimum LLVM version to 15.0.0
(Nathan Chancellor)
Kconfig: (Arnd Bergmann)
- Add cmpxchg8b support back to Geode CPUs
- Drop 32-bit "bigsmp" machine support
- Rework CONFIG_GENERIC_CPU compiler flags
- Drop configuration options for early 64-bit CPUs
- Remove CONFIG_HIGHMEM64G support
- Drop CONFIG_SWIOTLB for PAE
- Drop support for CONFIG_HIGHPTE
- Document CONFIG_X86_INTEL_MID as 64-bit-only
- Remove old STA2x11 support
- Only allow CONFIG_EISA for 32-bit
Headers:
- Replace __ASSEMBLY__ with __ASSEMBLER__ in UAPI and non-UAPI headers
(Thomas Huth)
Assembly code & machine code patching:
- x86/alternatives: Simplify alternative_call() interface (Josh Poimboeuf)
- x86/alternatives: Simplify callthunk patching (Peter Zijlstra)
- KVM: VMX: Use named operands in inline asm (Josh Poimboeuf)
- x86/hyperv: Use named operands in inline asm (Josh Poimboeuf)
- x86/traps: Cleanup and robustify decode_bug() (Peter Zijlstra)
- x86/kexec: Merge x86_32 and x86_64 code using macros from <asm/asm.h>
(Uros Bizjak)
- Use named operands in inline asm (Uros Bizjak)
- Improve performance by using asm_inline() for atomic locking instructions
(Uros Bizjak)
Earlyprintk:
- Harden early_serial (Peter Zijlstra)
NMI handler:
- Add an emergency handler in nmi_desc & use it in nmi_shootdown_cpus()
(Waiman Long)
Miscellaneous fixes and cleanups:
- by Ahmed S. Darwish, Andy Shevchenko, Ard Biesheuvel,
Artem Bityutskiy, Borislav Petkov, Brendan Jackman, Brian Gerst,
Dan Carpenter, Dr. David Alan Gilbert, H. Peter Anvin,
Ingo Molnar, Josh Poimboeuf, Kevin Brodsky, Mike Rapoport,
Lukas Bulwahn, Maciej Wieczor-Retman, Max Grobecker,
Patryk Wlazlyn, Pawan Gupta, Peter Zijlstra,
Philip Redkin, Qasim Ijaz, Rik van Riel, Thomas Gleixner,
Thorsten Blum, Tom Lendacky, Tony Luck, Uros Bizjak,
Vitaly Kuznetsov, Xin Li, liuye.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-core-2025-03-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull core x86 updates from Ingo Molnar:
"x86 CPU features support:
- Generate the <asm/cpufeaturemasks.h> header based on build config
(H. Peter Anvin, Xin Li)
- x86 CPUID parsing updates and fixes (Ahmed S. Darwish)
- Introduce the 'setcpuid=' boot parameter (Brendan Jackman)
- Enable modifying CPU bug flags with '{clear,set}puid=' (Brendan
Jackman)
- Utilize CPU-type for CPU matching (Pawan Gupta)
- Warn about unmet CPU feature dependencies (Sohil Mehta)
- Prepare for new Intel Family numbers (Sohil Mehta)
Percpu code:
- Standardize & reorganize the x86 percpu layout and related cleanups
(Brian Gerst)
- Convert the stackprotector canary to a regular percpu variable
(Brian Gerst)
- Add a percpu subsection for cache hot data (Brian Gerst)
- Unify __pcpu_op{1,2}_N() macros to __pcpu_op_N() (Uros Bizjak)
- Construct __percpu_seg_override from __percpu_seg (Uros Bizjak)
MM:
- Add support for broadcast TLB invalidation using AMD's INVLPGB
instruction (Rik van Riel)
- Rework ROX cache to avoid writable copy (Mike Rapoport)
- PAT: restore large ROX pages after fragmentation (Kirill A.
Shutemov, Mike Rapoport)
- Make memremap(MEMREMAP_WB) map memory as encrypted by default
(Kirill A. Shutemov)
- Robustify page table initialization (Kirill A. Shutemov)
- Fix flush_tlb_range() when used for zapping normal PMDs (Jann Horn)
- Clear _PAGE_DIRTY for kernel mappings when we clear _PAGE_RW
(Matthew Wilcox)
KASLR:
- x86/kaslr: Reduce KASLR entropy on most x86 systems, to support PCI
BAR space beyond the 10TiB region (CONFIG_PCI_P2PDMA=y) (Balbir
Singh)
CPU bugs:
- Implement FineIBT-BHI mitigation (Peter Zijlstra)
- speculation: Simplify and make CALL_NOSPEC consistent (Pawan Gupta)
- speculation: Add a conditional CS prefix to CALL_NOSPEC (Pawan
Gupta)
- RFDS: Exclude P-only parts from the RFDS affected list (Pawan
Gupta)
System calls:
- Break up entry/common.c (Brian Gerst)
- Move sysctls into arch/x86 (Joel Granados)
Intel LAM support updates: (Maciej Wieczor-Retman)
- selftests/lam: Move cpu_has_la57() to use cpuinfo flag
- selftests/lam: Skip test if LAM is disabled
- selftests/lam: Test get_user() LAM pointer handling
AMD SMN access updates:
- Add SMN offsets to exclusive region access (Mario Limonciello)
- Add support for debugfs access to SMN registers (Mario Limonciello)
- Have HSMP use SMN through AMD_NODE (Yazen Ghannam)
Power management updates: (Patryk Wlazlyn)
- Allow calling mwait_play_dead with an arbitrary hint
- ACPI/processor_idle: Add FFH state handling
- intel_idle: Provide the default enter_dead() handler
- Eliminate mwait_play_dead_cpuid_hint()
Build system:
- Raise the minimum GCC version to 8.1 (Brian Gerst)
- Raise the minimum LLVM version to 15.0.0 (Nathan Chancellor)
Kconfig: (Arnd Bergmann)
- Add cmpxchg8b support back to Geode CPUs
- Drop 32-bit "bigsmp" machine support
- Rework CONFIG_GENERIC_CPU compiler flags
- Drop configuration options for early 64-bit CPUs
- Remove CONFIG_HIGHMEM64G support
- Drop CONFIG_SWIOTLB for PAE
- Drop support for CONFIG_HIGHPTE
- Document CONFIG_X86_INTEL_MID as 64-bit-only
- Remove old STA2x11 support
- Only allow CONFIG_EISA for 32-bit
Headers:
- Replace __ASSEMBLY__ with __ASSEMBLER__ in UAPI and non-UAPI
headers (Thomas Huth)
Assembly code & machine code patching:
- x86/alternatives: Simplify alternative_call() interface (Josh
Poimboeuf)
- x86/alternatives: Simplify callthunk patching (Peter Zijlstra)
- KVM: VMX: Use named operands in inline asm (Josh Poimboeuf)
- x86/hyperv: Use named operands in inline asm (Josh Poimboeuf)
- x86/traps: Cleanup and robustify decode_bug() (Peter Zijlstra)
- x86/kexec: Merge x86_32 and x86_64 code using macros from
<asm/asm.h> (Uros Bizjak)
- Use named operands in inline asm (Uros Bizjak)
- Improve performance by using asm_inline() for atomic locking
instructions (Uros Bizjak)
Earlyprintk:
- Harden early_serial (Peter Zijlstra)
NMI handler:
- Add an emergency handler in nmi_desc & use it in
nmi_shootdown_cpus() (Waiman Long)
Miscellaneous fixes and cleanups:
- by Ahmed S. Darwish, Andy Shevchenko, Ard Biesheuvel, Artem
Bityutskiy, Borislav Petkov, Brendan Jackman, Brian Gerst, Dan
Carpenter, Dr. David Alan Gilbert, H. Peter Anvin, Ingo Molnar,
Josh Poimboeuf, Kevin Brodsky, Mike Rapoport, Lukas Bulwahn, Maciej
Wieczor-Retman, Max Grobecker, Patryk Wlazlyn, Pawan Gupta, Peter
Zijlstra, Philip Redkin, Qasim Ijaz, Rik van Riel, Thomas Gleixner,
Thorsten Blum, Tom Lendacky, Tony Luck, Uros Bizjak, Vitaly
Kuznetsov, Xin Li, liuye"
* tag 'x86-core-2025-03-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (211 commits)
zstd: Increase DYNAMIC_BMI2 GCC version cutoff from 4.8 to 11.0 to work around compiler segfault
x86/asm: Make asm export of __ref_stack_chk_guard unconditional
x86/mm: Only do broadcast flush from reclaim if pages were unmapped
perf/x86/intel, x86/cpu: Replace Pentium 4 model checks with VFM ones
perf/x86/intel, x86/cpu: Simplify Intel PMU initialization
x86/headers: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-UAPI headers
x86/headers: Replace __ASSEMBLY__ with __ASSEMBLER__ in UAPI headers
x86/locking/atomic: Improve performance by using asm_inline() for atomic locking instructions
x86/asm: Use asm_inline() instead of asm() in clwb()
x86/asm: Use CLFLUSHOPT and CLWB mnemonics in <asm/special_insns.h>
x86/hweight: Use asm_inline() instead of asm()
x86/hweight: Use ASM_CALL_CONSTRAINT in inline asm()
x86/hweight: Use named operands in inline asm()
x86/stackprotector/64: Only export __ref_stack_chk_guard on CONFIG_SMP
x86/head/64: Avoid Clang < 17 stack protector in startup code
x86/kexec: Merge x86_32 and x86_64 code using macros from <asm/asm.h>
x86/runtime-const: Add the RUNTIME_CONST_PTR assembly macro
x86/cpu/intel: Limit the non-architectural constant_tsc model checks
x86/mm/pat: Replace Intel x86_model checks with VFM ones
x86/cpu/intel: Fix fast string initialization for extended Families
...
|
||
|
Linus Torvalds
|
327ecdbc0f |
Performance events updates for v6.15:
Core:
- Move perf_event sysctls into kernel/events/ (Joel Granados)
- Use POLLHUP for pinned events in error (Namhyung Kim)
- Avoid the read if the count is already updated (Peter Zijlstra)
- Allow the EPOLLRDNORM flag for poll (Tao Chen)
- locking/percpu-rwsem: Add guard support (Peter Zijlstra)
[ NOTE: this got (mis-)merged into the perf tree due to related work. ]
perf_pmu_unregister() related improvements: (Peter Zijlstra)
- Simplify the perf_event_alloc() error path
- Simplify the perf_pmu_register() error path
- Simplify perf_pmu_register()
- Simplify perf_init_event()
- Simplify perf_event_alloc()
- Merge struct pmu::pmu_disable_count into struct perf_cpu_pmu_context::pmu_disable_count
- Add this_cpc() helper
- Introduce perf_free_addr_filters()
- Robustify perf_event_free_bpf_prog()
- Simplify the perf_mmap() control flow
- Further simplify perf_mmap()
- Remove retry loop from perf_mmap()
- Lift event->mmap_mutex in perf_mmap()
- Detach 'struct perf_cpu_pmu_context' and 'struct pmu' lifetimes
- Fix perf_mmap() failure path
Uprobes:
- Harden x86 uretprobe syscall trampoline check (Jiri Olsa)
- Remove redundant spinlock in uprobe_deny_signal() (Liao Chang)
- Remove the spinlock within handle_singlestep() (Liao Chang)
x86 Intel PMU enhancements:
- Support PEBS counters snapshotting (Kan Liang)
- Fix intel_pmu_read_event() (Kan Liang)
- Extend per event callchain limit to branch stack (Kan Liang)
- Fix system-wide LBR profiling (Kan Liang)
- Allocate bts_ctx only if necessary (Li RongQing)
- Apply static call for drain_pebs (Peter Zijlstra)
x86 AMD PMU enhancements: (Ravi Bangoria)
- Remove pointless sample period check
- Fix ->config to sample period calculation for OP PMU
- Fix perf_ibs_op.cnt_mask for CurCnt
- Don't allow freq mode event creation through ->config interface
- Add PMU specific minimum period
- Add ->check_period() callback
- Ceil sample_period to min_period
- Add support for OP Load Latency Filtering
- Update DTLB/PageSize decode logic
Hardware breakpoints:
- Return EOPNOTSUPP for unsupported breakpoint type (Saket Kumar Bhaskar)
Hardlockup detector improvements: (Li Huafei)
- perf_event memory leak
- Warn if watchdog_ev is leaked
Fixes and cleanups:
- Misc fixes and cleanups (Andy Shevchenko, Kan Liang, Peter Zijlstra,
Ravi Bangoria, Thorsten Blum, XieLudan)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'perf-core-2025-03-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull performance events updates from Ingo Molnar:
"Core:
- Move perf_event sysctls into kernel/events/ (Joel Granados)
- Use POLLHUP for pinned events in error (Namhyung Kim)
- Avoid the read if the count is already updated (Peter Zijlstra)
- Allow the EPOLLRDNORM flag for poll (Tao Chen)
- locking/percpu-rwsem: Add guard support [ NOTE: this got
(mis-)merged into the perf tree due to related work ] (Peter
Zijlstra)
perf_pmu_unregister() related improvements: (Peter Zijlstra)
- Simplify the perf_event_alloc() error path
- Simplify the perf_pmu_register() error path
- Simplify perf_pmu_register()
- Simplify perf_init_event()
- Simplify perf_event_alloc()
- Merge struct pmu::pmu_disable_count into struct
perf_cpu_pmu_context::pmu_disable_count
- Add this_cpc() helper
- Introduce perf_free_addr_filters()
- Robustify perf_event_free_bpf_prog()
- Simplify the perf_mmap() control flow
- Further simplify perf_mmap()
- Remove retry loop from perf_mmap()
- Lift event->mmap_mutex in perf_mmap()
- Detach 'struct perf_cpu_pmu_context' and 'struct pmu' lifetimes
- Fix perf_mmap() failure path
Uprobes:
- Harden x86 uretprobe syscall trampoline check (Jiri Olsa)
- Remove redundant spinlock in uprobe_deny_signal() (Liao Chang)
- Remove the spinlock within handle_singlestep() (Liao Chang)
x86 Intel PMU enhancements:
- Support PEBS counters snapshotting (Kan Liang)
- Fix intel_pmu_read_event() (Kan Liang)
- Extend per event callchain limit to branch stack (Kan Liang)
- Fix system-wide LBR profiling (Kan Liang)
- Allocate bts_ctx only if necessary (Li RongQing)
- Apply static call for drain_pebs (Peter Zijlstra)
x86 AMD PMU enhancements: (Ravi Bangoria)
- Remove pointless sample period check
- Fix ->config to sample period calculation for OP PMU
- Fix perf_ibs_op.cnt_mask for CurCnt
- Don't allow freq mode event creation through ->config interface
- Add PMU specific minimum period
- Add ->check_period() callback
- Ceil sample_period to min_period
- Add support for OP Load Latency Filtering
- Update DTLB/PageSize decode logic
Hardware breakpoints:
- Return EOPNOTSUPP for unsupported breakpoint type (Saket Kumar
Bhaskar)
Hardlockup detector improvements: (Li Huafei)
- perf_event memory leak
- Warn if watchdog_ev is leaked
Fixes and cleanups:
- Misc fixes and cleanups (Andy Shevchenko, Kan Liang, Peter
Zijlstra, Ravi Bangoria, Thorsten Blum, XieLudan)"
* tag 'perf-core-2025-03-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (55 commits)
perf: Fix __percpu annotation
perf: Clean up pmu specific data
perf/x86: Remove swap_task_ctx()
perf/x86/lbr: Fix shorter LBRs call stacks for the system-wide mode
perf: Supply task information to sched_task()
perf: attach/detach PMU specific data
locking/percpu-rwsem: Add guard support
perf: Save PMU specific data in task_struct
perf: Extend per event callchain limit to branch stack
perf/ring_buffer: Allow the EPOLLRDNORM flag for poll
perf/core: Use POLLHUP for pinned events in error
perf/core: Use sysfs_emit() instead of scnprintf()
perf/core: Remove optional 'size' arguments from strscpy() calls
perf/x86/intel/bts: Check if bts_ctx is allocated when calling BTS functions
uprobes/x86: Harden uretprobe syscall trampoline check
watchdog/hardlockup/perf: Warn if watchdog_ev is leaked
watchdog/hardlockup/perf: Fix perf_event memory leak
perf/x86: Annotate struct bts_buffer::buf with __counted_by()
perf/core: Clean up perf_try_init_event()
perf/core: Fix perf_mmap() failure path
...
|
||
|
Linus Torvalds
|
32b22538be |
Scheduler updates for v6.15:
[ Merge note, these two commits are identical:
-
|
||
|
Linus Torvalds
|
5a658afd46 |
Objtool changes for v6.15:
- The biggest change is the new option to automatically fail
the build on objtool warnings: CONFIG_OBJTOOL_WERROR.
While there are no currently known unfixed false positives
left, such an expansion in the severity of objtool warnings
inevitably creates a risk of build failures, so it's disabled by
default and depends on !COMPILE_TEST, so it shouldn't be enabled
on allyesconfig/allmodconfig builds and won't be forced on people
who just accept build-time defaults in 'make oldconfig'.
While the option is strongly recommended, only people who enable
it explicitly should see it.
(Josh Poimboeuf)
- Disable branch profiling in noinstr code with a broad
brush that includes all of arch/x86/ and kernel/sched/. (Josh Poimboeuf)
- Create backup object files on objtool errors and print exact
objtool arguments to make failure analysis easier (Josh Poimboeuf)
- Improve noreturn handling (Josh Poimboeuf)
- Improve rodata handling (Tiezhu Yang)
- Support jump tables, switch tables and goto tables on LoongArch (Tiezhu Yang)
- Misc cleanups and fixes (Josh Poimboeuf, David Engraf, Ingo Molnar)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'objtool-core-2025-03-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull objtool updates from Ingo Molnar:
- The biggest change is the new option to automatically fail the build
on objtool warnings: CONFIG_OBJTOOL_WERROR.
While there are no currently known unfixed false positives left, such
an expansion in the severity of objtool warnings inevitably creates a
risk of build failures, so it's disabled by default and depends on
!COMPILE_TEST, so it shouldn't be enabled on
allyesconfig/allmodconfig builds and won't be forced on people who
just accept build-time defaults in 'make oldconfig'.
While the option is strongly recommended, only people who enable it
explicitly should see it.
(Josh Poimboeuf)
- Disable branch profiling in noinstr code with a broad brush that
includes all of arch/x86/ and kernel/sched/. (Josh Poimboeuf)
- Create backup object files on objtool errors and print exact objtool
arguments to make failure analysis easier (Josh Poimboeuf)
- Improve noreturn handling (Josh Poimboeuf)
- Improve rodata handling (Tiezhu Yang)
- Support jump tables, switch tables and goto tables on LoongArch
(Tiezhu Yang)
- Misc cleanups and fixes (Josh Poimboeuf, David Engraf, Ingo Molnar)
* tag 'objtool-core-2025-03-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (22 commits)
tracing: Disable branch profiling in noinstr code
objtool: Use O_CREAT with explicit mode mask
objtool: Add CONFIG_OBJTOOL_WERROR
objtool: Create backup on error and print args
objtool: Change "warning:" to "error:" for --Werror
objtool: Add --Werror option
objtool: Add --output option
objtool: Upgrade "Linked object detected" warning to error
objtool: Consolidate option validation
objtool: Remove --unret dependency on --rethunk
objtool: Increase per-function WARN_FUNC() rate limit
objtool: Update documentation
objtool: Improve __noreturn annotation warning
objtool: Fix error handling inconsistencies in check()
x86/traps: Make exc_double_fault() consistently noreturn
LoongArch: Enable jump table for objtool
objtool/LoongArch: Add support for goto table
objtool/LoongArch: Add support for switch table
objtool: Handle PC relative relocation type
objtool: Handle different entry size of rodata
...
|
||
|
Linus Torvalds
|
23608993bb |
Locking changes for v6.15:
Locking primitives:
- Micro-optimize percpu_{,try_}cmpxchg{64,128}_op() and {,try_}cmpxchg{64,128}
on x86 (Uros Bizjak)
- mutexes: extend debug checks in mutex_lock() (Yunhui Cui)
- Misc cleanups (Uros Bizjak)
Lockdep:
- Fix might_fault() lockdep check of current->mm->mmap_lock (Peter Zijlstra)
- Don't disable interrupts on RT in disable_irq_nosync_lockdep.*()
(Sebastian Andrzej Siewior)
- Disable KASAN instrumentation of lockdep.c (Waiman Long)
- Add kasan_check_byte() check in lock_acquire() (Waiman Long)
- Misc cleanups (Sebastian Andrzej Siewior)
Rust runtime integration:
- Use Pin for all LockClassKey usages (Mitchell Levy)
- sync: Add accessor for the lock behind a given guard (Alice Ryhl)
- sync: condvar: Add wait_interruptible_freezable() (Alice Ryhl)
- sync: lock: Add an example for Guard:: Lock_ref() (Boqun Feng)
Split-lock detection feature (x86):
- Fix warning mode with disabled mitigation mode (Maksim Davydov)
Locking events:
- Add locking events for rtmutex slow paths (Waiman Long)
- Add locking events for lockdep (Waiman Long)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'locking-core-2025-03-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking updates from Ingo Molnar:
"Locking primitives:
- Micro-optimize percpu_{,try_}cmpxchg{64,128}_op() and
{,try_}cmpxchg{64,128} on x86 (Uros Bizjak)
- mutexes: extend debug checks in mutex_lock() (Yunhui Cui)
- Misc cleanups (Uros Bizjak)
Lockdep:
- Fix might_fault() lockdep check of current->mm->mmap_lock (Peter
Zijlstra)
- Don't disable interrupts on RT in disable_irq_nosync_lockdep.*()
(Sebastian Andrzej Siewior)
- Disable KASAN instrumentation of lockdep.c (Waiman Long)
- Add kasan_check_byte() check in lock_acquire() (Waiman Long)
- Misc cleanups (Sebastian Andrzej Siewior)
Rust runtime integration:
- Use Pin for all LockClassKey usages (Mitchell Levy)
- sync: Add accessor for the lock behind a given guard (Alice Ryhl)
- sync: condvar: Add wait_interruptible_freezable() (Alice Ryhl)
- sync: lock: Add an example for Guard:: Lock_ref() (Boqun Feng)
Split-lock detection feature (x86):
- Fix warning mode with disabled mitigation mode (Maksim Davydov)
Locking events:
- Add locking events for rtmutex slow paths (Waiman Long)
- Add locking events for lockdep (Waiman Long)"
* tag 'locking-core-2025-03-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
lockdep: Remove disable_irq_lockdep()
lockdep: Don't disable interrupts on RT in disable_irq_nosync_lockdep.*()
rust: lockdep: Use Pin for all LockClassKey usages
rust: sync: condvar: Add wait_interruptible_freezable()
rust: sync: lock: Add an example for Guard:: Lock_ref()
rust: sync: Add accessor for the lock behind a given guard
locking/lockdep: Add kasan_check_byte() check in lock_acquire()
locking/lockdep: Disable KASAN instrumentation of lockdep.c
locking/lock_events: Add locking events for lockdep
locking/lock_events: Add locking events for rtmutex slow paths
x86/split_lock: Fix the delayed detection logic
lockdep/mm: Fix might_fault() lockdep check of current->mm->mmap_lock
x86/locking: Remove semicolon from "lock" prefix
locking/mutex: Add MUTEX_WARN_ON() into fast path
x86/locking: Use asm_inline for {,try_}cmpxchg{64,128} emulations
x86/locking: Use ALT_OUTPUT_SP() for percpu_{,try_}cmpxchg{64,128}_op()
|
||
|
Linus Torvalds
|
3ba7dfb8da |
RCU pull request for v6.15
This pull request contains the following branches:
docs.2025.02.04a:
- Add broken-timing possibility to stallwarn.rst.
- Improve discussion of this_cpu_ptr(), add raw_cpu_ptr().
- Document self-propagating callbacks.
- Point call_srcu() to call_rcu() for detailed memory ordering.
- Add CONFIG_RCU_LAZY delays to call_rcu() kernel-doc header.
- Clarify RCU_LAZY and RCU_LAZY_DEFAULT_OFF help text.
- Remove references to old grace-period-wait primitives.
srcu.2025.02.05a:
- Introduce srcu_read_{un,}lock_fast(), which is similar to
srcu_read_{un,}lock_lite(): avoid smp_mb()s in lock and unlock at the
cost of calling synchronize_rcu() in synchronize_srcu(). Moreover, by
returning the percpu offset of the counter at srcu_read_lock_fast()
time, srcu_read_unlock_fast() can save extra pointer dereferencing,
which makes it faster than srcu_read_{un,}lock_lite().
srcu_read_{un,}lock_fast() are intended to replace
rcu_read_{un,}lock_trace() if possible.
torture.2025.02.05a:
- Add get_torture_init_jiffies() to return the start time of the test.
- Add a test_boost_holdoff module parameter to allow delaying boosting
tests when building rcutorture as built-in.
- Add grace period sequence number logging at the beginning and end of
failure/close-call results.
- Switch to hexadecimal for the expedited grace period sequence number
in the rcu_exp_grace_period trace point.
- Make cur_ops->format_gp_seqs take buffer length.
- Move RCU_TORTURE_TEST_{CHK_RDR_STATE,LOG_CPU} to bool.
- Complain when invalid SRCU reader_flavor is specified.
- Add FORCE_NEED_SRCU_NMI_SAFE Kconfig for testing, which forces SRCU
uses atomics even when percpu ops are NMI safe, and use the Kconfig
for SRCU lockdep testing.
misc.2025.03.04a:
- Split rcu_report_exp_cpu_mult() mask parameter and use for tracing.
- Remove READ_ONCE() for rdp->gpwrap access in __note_gp_changes().
- Fix get_state_synchronize_rcu_full() GP-start detection.
- Move RCU Tasks self-tests to core_initcall().
- Print segment lengths in show_rcu_nocb_gp_state().
- Make RCU watch ct_kernel_exit_state() warning.
- Flush console log from kernel_power_off().
- rcutorture: Allow a negative value for nfakewriters.
- rcu: Update TREE05.boot to test normal synchronize_rcu().
- rcu: Use _full() API to debug synchronize_rcu().
lazypreempt.2025.03.04a: Make RCU handle PREEMPT_LAZY better:
- Fix header guard for rcu_all_qs().
- rcu: Rename PREEMPT_AUTO to PREEMPT_LAZY.
- Update __cond_resched comment about RCU quiescent states.
- Handle unstable rdp in rcu_read_unlock_strict().
- Handle quiescent states for PREEMPT_RCU=n, PREEMPT_COUNT=y.
- osnoise: Provide quiescent states.
- Adjust rcutorture with possible PREEMPT_RCU=n && PREEMPT_COUNT=y
combination.
- Limit PREEMPT_RCU configurations.
- Make rcutorture senario TREE07 and senario TREE10 use PREEMPT_LAZY=y.
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Merge tag 'rcu-next-v6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux
Pull RCU updates from Boqun Feng:
"Documentation:
- Add broken-timing possibility to stallwarn.rst
- Improve discussion of this_cpu_ptr(), add raw_cpu_ptr()
- Document self-propagating callbacks
- Point call_srcu() to call_rcu() for detailed memory ordering
- Add CONFIG_RCU_LAZY delays to call_rcu() kernel-doc header
- Clarify RCU_LAZY and RCU_LAZY_DEFAULT_OFF help text
- Remove references to old grace-period-wait primitives
srcu:
- Introduce srcu_read_{un,}lock_fast(), which is similar to
srcu_read_{un,}lock_lite(): avoid smp_mb()s in lock and unlock
at the cost of calling synchronize_rcu() in synchronize_srcu()
Moreover, by returning the percpu offset of the counter at
srcu_read_lock_fast() time, srcu_read_unlock_fast() can avoid
extra pointer dereferencing, which makes it faster than
srcu_read_{un,}lock_lite()
srcu_read_{un,}lock_fast() are intended to replace
rcu_read_{un,}lock_trace() if possible
RCU torture:
- Add get_torture_init_jiffies() to return the start time of the test
- Add a test_boost_holdoff module parameter to allow delaying
boosting tests when building rcutorture as built-in
- Add grace period sequence number logging at the beginning and end
of failure/close-call results
- Switch to hexadecimal for the expedited grace period sequence
number in the rcu_exp_grace_period trace point
- Make cur_ops->format_gp_seqs take buffer length
- Move RCU_TORTURE_TEST_{CHK_RDR_STATE,LOG_CPU} to bool
- Complain when invalid SRCU reader_flavor is specified
- Add FORCE_NEED_SRCU_NMI_SAFE Kconfig for testing, which forces SRCU
uses atomics even when percpu ops are NMI safe, and use the Kconfig
for SRCU lockdep testing
Misc:
- Split rcu_report_exp_cpu_mult() mask parameter and use for tracing
- Remove READ_ONCE() for rdp->gpwrap access in __note_gp_changes()
- Fix get_state_synchronize_rcu_full() GP-start detection
- Move RCU Tasks self-tests to core_initcall()
- Print segment lengths in show_rcu_nocb_gp_state()
- Make RCU watch ct_kernel_exit_state() warning
- Flush console log from kernel_power_off()
- rcutorture: Allow a negative value for nfakewriters
- rcu: Update TREE05.boot to test normal synchronize_rcu()
- rcu: Use _full() API to debug synchronize_rcu()
Make RCU handle PREEMPT_LAZY better:
- Fix header guard for rcu_all_qs()
- rcu: Rename PREEMPT_AUTO to PREEMPT_LAZY
- Update __cond_resched comment about RCU quiescent states
- Handle unstable rdp in rcu_read_unlock_strict()
- Handle quiescent states for PREEMPT_RCU=n, PREEMPT_COUNT=y
- osnoise: Provide quiescent states
- Adjust rcutorture with possible PREEMPT_RCU=n && PREEMPT_COUNT=y
combination
- Limit PREEMPT_RCU configurations
- Make rcutorture senario TREE07 and senario TREE10 use
PREEMPT_LAZY=y"
* tag 'rcu-next-v6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux: (59 commits)
rcutorture: Make scenario TREE07 build CONFIG_PREEMPT_LAZY=y
rcutorture: Make scenario TREE10 build CONFIG_PREEMPT_LAZY=y
rcu: limit PREEMPT_RCU configurations
rcutorture: Update ->extendables check for lazy preemption
rcutorture: Update rcutorture_one_extend_check() for lazy preemption
osnoise: provide quiescent states
rcu: Use _full() API to debug synchronize_rcu()
rcu: Update TREE05.boot to test normal synchronize_rcu()
rcutorture: Allow a negative value for nfakewriters
Flush console log from kernel_power_off()
context_tracking: Make RCU watch ct_kernel_exit_state() warning
rcu/nocb: Print segment lengths in show_rcu_nocb_gp_state()
rcu-tasks: Move RCU Tasks self-tests to core_initcall()
rcu: Fix get_state_synchronize_rcu_full() GP-start detection
torture: Make SRCU lockdep testing use srcu_read_lock_nmisafe()
srcu: Add FORCE_NEED_SRCU_NMI_SAFE Kconfig for testing
rcutorture: Complain when invalid SRCU reader_flavor is specified
rcutorture: Move RCU_TORTURE_TEST_{CHK_RDR_STATE,LOG_CPU} to bool
rcutorture: Make cur_ops->format_gp_seqs take buffer length
rcutorture: Add ftrace-compatible timestamp to GP# failure/close-call output
...
|
||
|
Linus Torvalds
|
2f2d529458 |
bitmap changes for 6.15
This includes: - cpumask_next_wrap() rework from me; - GENMASK() simplification from I Hsin; - rust bindings for cpumasks from Viresh and me; - scattered cleanups from Andy, Tamir, Vincent, Ignacio and Joel. -----BEGIN PGP SIGNATURE----- iQGzBAABCgAdFiEEi8GdvG6xMhdgpu/4sUSA/TofvsgFAmfhicUACgkQsUSA/Tof vsiT1Av/TFpTFPcfb0/U6zTjhphqSkhCqBN4JcT+Qh1pyFN3Q8xh7FIRjqm6PoWb wypQTrsOuS1UImfxj2PkHPiagDHz3LBWRJ1WCBZPF3FgZaFdOtVDObn91APaX4Jz K7B2eghnDLk74+eV3aBLVCPgdFPm4Og+3W2J9loWDHYNBrlgQX/3T8gZzJcIzDxk 8jDiy84cGQweW3K6VDr7WGb/gDBTNXKByFig4+rzuW8X/VcUB1wZi1lHqTL3yBMm hXGsa8/VFLVKpRhZxx7PeTiXF+Wp4Tu7iyCuLVK9F9P9pY4GBZ9KV69yaeHLwlwF P4eA3Lj1KvtwmZYDT19lB8V0El7nZzcTHtmSgII8JEniWvuVQjjARicIqFqh6zmX QaLOt/gfGT/tr9nPzsFMgQxHV0ocibqWmM0gZyfEDsqIX0ynSh1fbMf52PrbBBSX aOaVV55HWIjHzLPzqvVee8JMaCwn4hNDrVaWItedQzZkf8aXKLk/GUWYaaEwQ8yY N7D3sXbT =Bm5k -----END PGP SIGNATURE----- Merge tag 'bitmap-for-6.15' of https://github.com/norov/linux Pull bitmap updates from Yury Norov: - cpumask_next_wrap() rework (me) - GENMASK() simplification (I Hsin) - rust bindings for cpumasks (Viresh and me) - scattered cleanups (Andy, Tamir, Vincent, Ignacio and Joel) * tag 'bitmap-for-6.15' of https://github.com/norov/linux: (22 commits) cpumask: align text in comment riscv: fix test_and_{set,clear}_bit ordering documentation treewide: fix typo 'unsigned __init128' -> 'unsigned __int128' MAINTAINERS: add rust bindings entry for bitmap API rust: Add cpumask helpers uapi: Revert "bitops: avoid integer overflow in GENMASK(_ULL)" cpumask: drop cpumask_next_wrap_old() PCI: hv: Switch hv_compose_multi_msi_req_get_cpu() to using cpumask_next_wrap() scsi: lpfc: rework lpfc_next_{online,present}_cpu() scsi: lpfc: switch lpfc_irq_rebalance() to using cpumask_next_wrap() s390: switch stop_machine_yield() to using cpumask_next_wrap() padata: switch padata_find_next() to using cpumask_next_wrap() cpumask: use cpumask_next_wrap() where appropriate cpumask: re-introduce cpumask_next{,_and}_wrap() cpumask: deprecate cpumask_next_wrap() powerpc/xmon: simplify xmon_batch_next_cpu() ibmvnic: simplify ibmvnic_set_queue_affinity() virtio_net: simplify virtnet_set_affinity() objpool: rework objpool_pop() cpumask: add for_each_{possible,online}_cpu_wrap ... |
||
|
Linus Torvalds
|
f81c2b8150 |
It has been a reasonably busy cycle for docs...
- Significant changes throughout the tree to bring Python code up to
current standards and raise the minimum Python required to 3.9. Much of
this is preparatory to replacing the ancient Perl scripts/kernel-doc
horror with a slightly less horrifying Python implementation, expected
for 6.16.
- Update the minimum Sphinx required to 3.4.3, allowing us to remove a
bunch of older compatibility code.
- Rework and improve the generation of the ABI documentation.
(All of the above done by Mauro)
- Lots of translation updates. Alex Shi and Yanteng Si are taking on
responsibility for the Chinese translations going forward; that work will
still get to you via docs-next
- Try to standardize the format for indicating a developer's affiliation in
commit tags.
- Clarify the TAB's role in CoC enforcement actions.
- Try to spell out the rules for when a commit tag can name another
developer without their explicit permission.
Plus lots of other typo fixes and updates.
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Merge tag 'docs-6.15' of git://git.lwn.net/linux
Pull documentation updates from Jonathan Corbet:
"It has been a reasonably busy cycle for docs...
- Significant changes throughout the tree to bring Python code up to
current standards and raise the minimum Python required to 3.9
Much of this is preparatory to replacing the ancient Perl
scripts/kernel-doc horror with a slightly less horrifying Python
implementation, expected for 6.16
- Update the minimum Sphinx required to 3.4.3, allowing us to remove
a bunch of older compatibility code
- Rework and improve the generation of the ABI documentation
(All of the above done by Mauro)
- Lots of translation updates. Alex Shi and Yanteng Si are taking on
responsibility for the Chinese translations going forward; that
work will still get to you via docs-next
- Try to standardize the format for indicating a developer's
affiliation in commit tags
- Clarify the TAB's role in CoC enforcement actions
- Try to spell out the rules for when a commit tag can name another
developer without their explicit permission
Plus lots of other typo fixes and updates"
* tag 'docs-6.15' of git://git.lwn.net/linux: (98 commits)
docs/zh_CN: fix spelling mistake
docs/Chinese: change the disclaimer words
docs/zh_CN: Add snp-tdx-threat-model index Chinese translation
docs: driver-api: firmware: clarify userspace requirements
docs: clarify rules wrt tagging other people
docs: Remove outdated highuid.rst documentation
Documentation: dma-buf: heaps: Add heap name definitions
docs/.../submit-checklist: Use Documentation/admin-guide/abi.rst for cross-ref of README
docs: Correct installation instruction
Documentation: kcsan: fix "Plain Accesses and Data Races" URL in kcsan.rst
Documentation/CoC: Spell out the TAB role in enforcement decisions
Documentation: ocxl.rst: Update consortium site
scripts: get_feat.pl: substitute s390x with s390
scripts/kernel-doc: drop dead code for Wcontents_before_sections
scripts/kernel-doc: don't add not needed new lines
docs: driver-api/infiniband.rst: fix Kerneldoc markup
drivers: firewire: firewire-cdev.h: fix identation on a kernel-doc markup
drivers: media: intel-ipu3.h: fix identation on a kernel-doc markup
include/asm-generic/io.h: fix kerneldoc markup
Docs/arch/arm64: Fix spelling in amu.rst
...
|
||
|
Linus Torvalds
|
8541bc1a52 |
stop-machine: Add a comment for rcu_momentary_eqs()
Changes ------- * Add a comment for the call to rcu_momentary_eqs() from multi_cpu_stop() explaining that its purpose is to suppress false-positive RCU CPU stall warnings. -----BEGIN PGP SIGNATURE----- iQJHBAABCgAxFiEEbK7UrM+RBIrCoViJnr8S83LZ+4wFAmfd9aETHHBhdWxtY2tA a2VybmVsLm9yZwAKCRCevxLzctn7jLNkD/0bjZORD3Rmjb1lHM22PhYRHP4fynp2 xD0oOrfEHViHk6NZtppCsK+I881zdXSqq+yhGxVw/CifTPwujdZ5yf62fmwyqGV+ K/IZcxBCVbsRPuhD4lJR8v3Js+3lg6LlcI8WlejGEgdI9G91Tro6Ku2kWnOfSS0Y iFTfkJ5OJuPakyeqHeAHv0Ps2iHk6EGMbL2z/hqT+6hx7aYIGQEtaEmEF1oluAO3 or2mQHszS1Fq0W2oDyxHIp0RZiqBTRl5br/xddDV0d3unuftfuUtFKcMxicEokIe oI32kXf0YSdL+KCCucAf7+WoKJWBUyep/K0vtzA7AeE3ZL/f76dXLucqCEJoriBi mYzWW/kR+Wnitu/fjwSTWve3qNjU6V8kny8D13SyvPdwSZQHj9F2Rm2HryjWxp5/ aQM1kMGn9BIIX+l6zpCM7yZyMxxxGByi7d8J+GKseTMLE6hdvAUUw2j1qM66L0DD jjalkASOOswXGUX9GGfhoDnFNz9xvy+PXLQGT9BZU/L1iP5xGCyzUjPvdRxq/mwc o3J3qZI6AJ8noujUioScRLmxgxSfQxUPYi/Pcc61s8o2ZanyaXqCL9qpsjLQ1XLl IdlvU/GnPlnBPSmnqIQ4ktgQEpab12jAEnA5K3cSs1yJsp35qMvbxXbp84RZ7VdG wA5rNL19QGHBbg== =h93l -----END PGP SIGNATURE----- Merge tag 'stop-machine.2025.03.21a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu Pull stop-machine update from Paul McKenney: - Add a comment for the call to rcu_momentary_eqs() from multi_cpu_stop() explaining that its purpose is to suppress false-positive RCU CPU stall warnings * tag 'stop-machine.2025.03.21a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: stop-machine: Add comment for rcu_momentary_eqs() |
||
|
Linus Torvalds
|
72b40807d2 |
lkmm: Add more atomic operations, rework tags, and update documentation
Changes ------- * Adds additional atomic operations (Puranjay Mohan) * Makes better use of herd7 tags (Jonas Oberhauser) * Updates documentation (Akira Yokosawa) These changes require v7.58 of the herd7 and klitmus tools, up from v7.52. -----BEGIN PGP SIGNATURE----- iQJHBAABCgAxFiEEbK7UrM+RBIrCoViJnr8S83LZ+4wFAmfd72ETHHBhdWxtY2tA a2VybmVsLm9yZwAKCRCevxLzctn7jHFzD/9aBjKw5sMFLwRwi1R4wpQj4gKdvofF a63VmGb8Vpmz/8uxxlg43BM+Cmr0mPExfivI+lADx1Y/GKHiUzdwzr8z6hDndOXt Q8ZqP1s3sMM/wdy9CYQANrCg3m/5hR1SzJBTYTwDpXoD9jTBM5hOc0C+3pFXyY7m eW8RK2AWR5U1lmyuEuDnyU7nnDdvcRjPNnckfHFXsBSyVssAklIPaSm/p3lJi4ne rAlAF8mos3NvyzoliQmQuqUqEB4gTNsJ1Y/JqBlqkrvwDZRKT9hfY54wyW0v7YLx Usb4Zthhe/lEwDNnYSrXNTq0J1gku5k9iAHL/SDmabNND0RFa7wOM1jm1DEcGvXl Idwjb77jqQ6VVURkc1pVqNfGb1kG9t/HaKIzx/J94Cvm1jgCQwYkZUtJGnQYbe01 Lyiv/pkg2b3RksS4zJaYvUhK3gKvyS1FHSpqOQ55hXu3L/hRc9yVtXo9pqfZfGqm GJ8ogxCG0ybGR0Gii4VNCgdRTIfqcsITxcPHBgr7Aqf+5+rA9D7Pg2AUprdFAFMy 76o6KdWkmWY2yDll+ZOQ/E1TdhzqzWomSfZhUofbQTPv6x0C98i77k/Pmom3bepM Hx1k05Jo/3MKSSUUP9QeWW9hVs2jvha5blZmCV77uTS5Q5uW1FTBUI3DnMkMvb+S DSW4pHQFZYX+OQ== =cH82 -----END PGP SIGNATURE----- Merge tag 'lkmm.2025.03.21a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu Pull kernel memory model updates from Paul McKenney: "Add more atomic operations, rework tags, and update documentation: - Add additional atomic operations (Puranjay Mohan) - Make better use of herd7 tags (Jonas Oberhauser) - Update documentation (Akira Yokosawa) These changes require v7.58 of the herd7 and klitmus tools, up from v7.52" * tag 'lkmm.2025.03.21a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: tools/memory-model: glossary.txt: Fix indents tools/memory-model/README: Fix typo tools/memory-model: Distinguish between syntactic and semantic tags tools/memory-model: Switch to softcoded herd7 tags tools/memory-model: Define effect of Mb tags on RMWs in tools/... tools/memory-model: Define applicable tags on operation in tools/... tools/memory-model: Legitimize current use of tags in LKMM macros tools/memory-model: Add atomic_andnot() with its variants tools/memory-model: Add atomic_and()/or()/xor() and add_negative |
||
|
Linus Torvalds
|
418becac37 |
nolibc changes for 6.15
Changes ------- * 32bit s390 support * opendir() and friends * openat() support * sscanf() support * various cleanups -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQTg4lxklFHAidmUs57B+h1jyw5bOAUCZ8w24QAKCRDB+h1jyw5b OIRTAQD1KvUV0qYOKU3xqOiUxDe84DyFv4mgu1iZoqmd0po/CQEAs8HU4XWp4Ls0 tPkcLqlhiVPgwhtipjklW8uy6JcFzAI= =+Zma -----END PGP SIGNATURE----- Merge tag 'nolibc-20250308-for-6.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu Pull nolibc updates from Paul McKenney: - 32bit s390 support - opendir() and friends - openat() support - sscanf() support - various cleanups [ Paul has just forwarded the pull request from Thomas Weißschuh, so the tag signature is from Thomas, not Paul - Linus ] * tag 'nolibc-20250308-for-6.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: (26 commits) tools/nolibc: don't use asm/ UAPI headers selftests/nolibc: stop testing constructor order selftests/nolibc: use O_RDONLY flag instead of 0 tools/nolibc: drop outdated example from overview comment tools/nolibc: process open() vararg as mode_t tools/nolibc: always use openat(2) instead of open(2) tools/nolibc: add support for openat(2) selftests/nolibc: add armthumb configuration selftests/nolibc: explicitly enable ARM mode Revert "selftests: kselftest: Fix build failure with NOLIBC" tools/nolibc: add support for [v]sscanf() tools/nolibc: add support for 32-bit s390 selftests/nolibc: rename s390 to s390x selftests/nolibc: only run constructor tests on nolibc selftests/nolibc: split up architecture list in run-tests.sh tools/nolibc: add support for directory access tools/nolibc: add support for sys_llseek() selftests/nolibc: always keep test kernel configuration up to date selftests/nolibc: execute defconfig before other targets selftests/nolibc: drop call to mrproper target ... |
||
|
Linus Torvalds
|
bcb044256d |
sched_ext: Changes for v6.15
- Add mechanism to count and report internal events. This significantly improves visibility on subtle corner conditions. - The default idle CPU selection logic is revamped and improved in multiple ways including being made topology aware. - sched_ext was disabling ttwu_queue for simplicity, which can be costly when hardware topology is more complex. Implement SCX_OPS_ALLOWED_QUEUED_WAKEUP so that BPF schedulers can selectively enable ttwu_queue. - tools/sched_ext updates to improve compatibility among others. - Other misc updates and fixes. - sched_ext/for-6.14-fixes were pulled a few times to receive prerequisite fixes and resolve conflicts. -----BEGIN PGP SIGNATURE----- iIQEABYKACwWIQTfIjM1kS57o3GsC/uxYfJx3gVYGQUCZ999Sg4cdGpAa2VybmVs Lm9yZwAKCRCxYfJx3gVYGf/KAQCoMTVOBpQT9gCaCKDOmrVJTwi6boEoV5WnGZzw PDr0vwEAq36iz4no6Y5THcN/DCx+52IiS0zuhPy3rBZVo11TMgU= =iQ+A -----END PGP SIGNATURE----- Merge tag 'sched_ext-for-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext Pull sched_ext updates from Tejun Heo: - Add mechanism to count and report internal events. This significantly improves visibility on subtle corner conditions. - The default idle CPU selection logic is revamped and improved in multiple ways including being made topology aware. - sched_ext was disabling ttwu_queue for simplicity, which can be costly when hardware topology is more complex. Implement SCX_OPS_ALLOWED_QUEUED_WAKEUP so that BPF schedulers can selectively enable ttwu_queue. - tools/sched_ext updates to improve compatibility among others. - Other misc updates and fixes. - sched_ext/for-6.14-fixes were pulled a few times to receive prerequisite fixes and resolve conflicts. * tag 'sched_ext-for-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext: (42 commits) sched_ext: idle: Refactor scx_select_cpu_dfl() sched_ext: idle: Honor idle flags in the built-in idle selection policy sched_ext: Skip per-CPU tasks in scx_bpf_reenqueue_local() sched_ext: Add trace point to track sched_ext core events sched_ext: Change the event type from u64 to s64 sched_ext: Documentation: add task lifecycle summary tools/sched_ext: Provide a compatible helper for scx_bpf_events() selftests/sched_ext: Add NUMA-aware scheduler test tools/sched_ext: Provide consistent access to scx flags sched_ext: idle: Fix scx_bpf_pick_any_cpu_node() behavior sched_ext: idle: Introduce scx_bpf_nr_node_ids() sched_ext: idle: Introduce node-aware idle cpu kfunc helpers sched_ext: idle: Per-node idle cpumasks sched_ext: idle: Introduce SCX_OPS_BUILTIN_IDLE_PER_NODE sched_ext: idle: Make idle static keys private sched/topology: Introduce for_each_node_numadist() iterator mm/numa: Introduce nearest_node_nodemask() nodemask: numa: reorganize inclusion path nodemask: add nodes_copy() tools/sched_ext: Sync with scx repo ... |
||
|
Linus Torvalds
|
94dc216ad8 |
cgroup: Changes for v6.15
- Add deprecation info messages to cgroup1-only features. - rstat updates including a bug fix and breaking up a critical section to reduce interrupt latency impact. - Other misc and doc updates. -----BEGIN PGP SIGNATURE----- iIQEABYKACwWIQTfIjM1kS57o3GsC/uxYfJx3gVYGQUCZ9xO2g4cdGpAa2VybmVs Lm9yZwAKCRCxYfJx3gVYGQz4AQDeWKmngRsnddEMkqOV1ArwXSr+8xUQrvCBx0RL vcjOQQEAusGCTeGXWJ96kw+N9BXvGwFsfSeoxjOqAnvrBS1EgAc= =WvJg -----END PGP SIGNATURE----- Merge tag 'cgroup-for-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup Pull cgroup updates from Tejun Heo: - Add deprecation info messages to cgroup1-only features - rstat updates including a bug fix and breaking up a critical section to reduce interrupt latency impact - Other misc and doc updates * tag 'cgroup-for-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: cgroup: rstat: Cleanup flushing functions and locking cgroup/rstat: avoid disabling irqs for O(num_cpu) mm: Fix a build breakage in memcontrol-v1.c blk-cgroup: Simplify policy files registration cgroup: Update file naming comment cgroup: Add deprecation message to legacy freezer controller mm: Add transformation message for per-memcg swappiness RFC cgroup/cpuset-v1: Add deprecation messages to sched_relax_domain_level cgroup/cpuset-v1: Add deprecation messages to memory_migrate cgroup/cpuset-v1: Add deprecation messages to mem_exclusive and mem_hardwall cgroup: Print message when /proc/cgroups is read on v2-only system cgroup/blkio: Add deprecation messages to reset_stats cgroup/cpuset-v1: Add deprecation messages to memory_spread_page and memory_spread_slab cgroup/cpuset-v1: Add deprecation messages to sched_load_balance and memory_pressure_enabled cgroup, docs: Be explicit about independence of RT_GROUP_SCHED and non-cpu controllers cgroup/rstat: Fix forceidle time in cpu.stat cgroup/misc: Remove unused misc_cg_res_total_usage cgroup/cpuset: Move procfs cpuset attribute under cgroup-v1.c cgroup: update comment about dropping cgroup kn refs |