features
- Unify the handling of CPU core types (performance, efficient, etc) by
mapping the vendor-specific types to Linux ones
- Continuation of the work of Ahmed Darwish to centralize CPUID leafs
representation
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Merge tag 'x86_cpu_for_v7.3_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cpuid updates from Borislav Petkov:
- Get rid of static_cpu_has() - one less API to care about testing CPU
features
- Unify the handling of CPU core types (performance, efficient, etc) by
mapping the vendor-specific types to Linux ones
- Continuation of the work of Ahmed Darwish to centralize CPUID leaf
representation
* tag 'x86_cpu_for_v7.3_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/CPU: Rename struct cpuid_read_output to struct cpuid_output
x86/cpu/scattered: Sort it properly
x86/cpu: Use parsed CPUID(0x1)
x86/lib: Add CPUID(0x1) family and model calculation
x86/cpu: Use parsed CPUID(0x0)
x86/cpu/transmeta: Rescan CPUID(0x1) after modifying capabilities
x86/topology: Add TOPO_CPU_TYPE_LOW_POWER
x86/topology: Name the AMD core-type values
x86/topo: Map vendor CPU types to generic Linux such types
x86/bugs: Don't use cpu-type matching in cpu_vuln_blacklist
x86/cpu: Hide and rename static_cpu_has()
- Streamline the x86 MSR handling APIs along the 64-bit
variants, simplifying the interfaces. Removal of the
old APIs is planned for the next cycle, to reduce
churn & integration pain. (Juergen Gross)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-msr-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 MSR updates from Ingo Molnar:
- Streamline the x86 MSR handling APIs along the 64-bit variants,
simplifying the interfaces.
Removal of the old APIs is planned for the next cycle, to reduce
churn & integration pain (Juergen Gross)
* tag 'x86-msr-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (21 commits)
x86/mce: Work around build warning after MSR-interface switch
cpufreq: Stop using 32-bit MSR interfaces
x86/featctl: Stop using 32-bit MSR interfaces
KVM/x86: Stop using 32-bit MSR interfaces
x86/mtrr: Stop using 32-bit MSR interfaces
acpi: Stop using 32-bit MSR interfaces
powercap: Stop using 32-bit MSR interfaces
thermal/intel: Stop using 32-bit MSR interfaces
x86/olpc: Stop using 32-bit MSR interfaces
x86/hyperv: Stop using 32-bit MSR interfaces
hwmon: Stop using 32-bit MSR interfaces
EDAC: Stop using 32-bit MSR interfaces
x86/cpu: Stop using 32-bit MSR interfaces
x86/apic: Stop using 32-bit MSR interfaces
x86/resctrl: Stop using 32-bit MSR interfaces
x86/tsc: Stop using 32-bit MSR interfaces
x86/amd: Stop using 32-bit MSR interfaces
x86/pci: Stop using 32-bit MSR interfaces
x86/hygon: Stop using 32-bit MSR interfaces
x86/mce: Stop using 32-bit MSR interfaces
...
The devm_request_threaded_irq() now automatically logs detailed error
messages on failure. This eliminates the need for driver-specific
dev_err() calls that previously printed generic messages.
Signed-off-by: Pan Chuang <panchuang@vivo.com>
[ rjw: Subject adjustment ]
Link: https://patch.msgid.link/20260709023048.599150-12-panchuang@vivo.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The devm_request_threaded_irq() now automatically logs detailed error
messages on failure. This eliminates the need for driver-specific
dev_err() calls that previously printed generic messages.
Signed-off-by: Pan Chuang <panchuang@vivo.com>
Link: https://patch.msgid.link/20260709023048.599150-11-panchuang@vivo.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
evaluate_odvp() creates per-ODVP sysfs files before the thermal zone
and later probe resources are registered. The current unwind path only
calls cleanup_odvp() from the late sysfs failure path, so failures after
evaluate_odvp() but before that label, including
thermal_tripless_zone_device_register() failures, leave the ODVP files
and storage behind.
Move the ODVP cleanup to the common ART/TRT unwind path so every failure
after evaluate_odvp() releases the ODVP state. Also clear the cached
ODVP pointers in cleanup_odvp(), because evaluate_odvp() can already call
it for partial setup failures while probe continues.
Fixes: 006f006f1e ("thermal/int340x_thermal: Export OEM vendor variables")
Signed-off-by: Pengpeng Hou <pengpeng@iscas.ac.cn>
Link: https://patch.msgid.link/20260623015140.19300-1-pengpeng@iscas.ac.cn
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
proc_thermal_rfim_add() can create the FIVR and DLVR sysfs groups
before creating the DVFS group.
If DVFS group creation fails while both earlier groups are enabled, the
current error handling removes only one group: the FIVR branch returns
before the DLVR cleanup branch can run. This leaves the DLVR group
behind even though RFIM setup fails.
Use one DVFS failure path that removes all previously created RFIM
groups before returning the error.
Signed-off-by: Pengpeng Hou <pengpeng@iscas.ac.cn>
Link: https://patch.msgid.link/20260615065245.84252-1-pengpeng@iscas.ac.cn
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The 32-bit MSR interfaces rdmsr(), wrmsr(), rdmsr_safe() and
wrmsr_safe() are planned to be removed. Use the related 64-bit variants
instead.
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Rafael J. Wysocki (Intel) <rafael@kernel.org>
Link: https://patch.msgid.link/20260703112232.1762925-1-jgross@suse.com
A kexec reboot may load a kernel that does not support directed package-
level thermal interrupts. Without a shutdown callback, the directed
interrupt configuration remains enabled across kexec but will not be
handled correctly. In particular, if the CPU designated to receive the
directed interrupt goes offline, no other CPU in the package will receive
it.
Add a syscore shutdown callback to disable directed package-level thermal
interrupts on all packages before a kexec reboot. If the post-kexec kernel
does not enable directed interrupts, it falls back to broadcasting the
interrupt to all CPUs.
Signed-off-by: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
Link: https://patch.msgid.link/20260613-rneri-directed-therm-intr-v3-6-3a26d1e47fc8@linux.intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Directed package-level thermal interrupts are serviced by a single CPU per
package. These handler CPUs are selected at boot through the CPU hotplug
infrastructure. This mechanism is sufficient to restore the directed
interrupt configuration when resuming from suspend for non-boot packages.
It also keeps the handler-tracking array updated.
For the boot package, CPU0 is chosen during boot because its CPU hotplug
online callback runs first. However, this callback is not invoked on
resume. The directed package-level interrupt configuration for the boot
package is not restored. Add a syscore resume callback to re-enable
directed package-level interrupts for this package.
Disabling directed interrupts during suspend is required to keep the
handler-tracking array in a consistent state for the boot package,
allowing the correct configuration to be restored on resume.
The resume callback must busy-wait for hardware acknowledgment of the
directed interrupt setup. Otherwise, the handler-tracking array could be
left in an inconsistent state. This implies running with interrupts
disabled for up to 15ms, though in practice it takes less than 1ms.
Signed-off-by: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
Link: https://patch.msgid.link/20260613-rneri-directed-therm-intr-v3-5-3a26d1e47fc8@linux.intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Package-level thermal interrupts are broadcast to all online CPUs within a
package, even though only one CPU needs to service them. This results in
unnecessary wakeups, lock contention, and corresponding performance and
power-efficiency penalties.
When supported by hardware, a CPU requests to receive directed package-
level thermal interrupts by setting a designated bit in
IA32_THERM_INTERRUPT. The operating system must then verify that hardware
has acknowledged this request by checking a designated bit in
IA32_PACKAGE_THERM_STATUS.
Enable directed package-level thermal interrupts on one CPU per package
using the CPU hotplug infrastructure. The first CPU of a package that
comes online will handle the interrupt. If the handling CPU goes offline,
select a new CPU. Temporarily enable directed interrupts on both the
current and new CPU until hardware acknowledges the new selection, then
disable them on the outgoing CPU.
Systems without directed-interrupt support continue to broadcast the
package-level interrupt to all CPUs.
Also, add a rollback mechanism in the CPU hotplug online callback to
fall back to broadcast mode if the directed-interrupt acknowledgment fails
in any package. This is most important during boot, when all CPUs in a
package come online and would otherwise keep retrying on faulty hardware.
A complete rollback is not needed in the CPU hotplug offline callback since
at that point the hardware is known to work.
While here, update an inline comment to point to the correct volume of the
Intel Software Developer's Manual.
Signed-off-by: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
Link: https://patch.msgid.link/20260613-rneri-directed-therm-intr-v3-4-3a26d1e47fc8@linux.intel.com
[ rjw: Rebased on top of 7.2-rc2 ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
When supported by hardware, a CPU requests to receive directed package-
level thermal interrupts by setting a designated bit in
IA32_THERM_INTERRUPT. It is sufficient to have one CPU per package handling
the interrupt.
Add an array to keep track of those CPUs as well as init and cleanup
functions. A subsequent changeset will designate a CPU per package to
handle the interrupt.
Signed-off-by: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
Link: https://patch.msgid.link/20260613-rneri-directed-therm-intr-v3-3-3a26d1e47fc8@linux.intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
cpu_feature_enabled() is the one to use to test feature flags so hide
the static thing which doesn't pay attention to disabled mask bits
anyway.
Use the following command to do the replacement:
$ git grep --files-with-matches -w static_cpu_has -- ':(exclude)*cpufeature.h' \
| xargs sed -i 's/static_cpu_has(/cpu_feature_enabled\(/g'
There should be no functional changes resulting from this.
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Nikolay Borisov <nik.borisov@suse.com>
Link: https://patch.msgid.link/20260620015041.336288-1-bp@kernel.org
- Fix dangling resources on thermal_throttle_online() failure in the
Intel thermal_throttle driver (Ricardo Neri)
- Eliminate a possibility of running thermal testing module code after
that module has been removed (Rafael Wysocki)
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Merge tag 'thermal-7.2-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull thermal control fixes from Rafael Wysocki:
"These fix a failure path in an Intel thermal driver and prevent
thermal testing module code from being executed after it has been
freed:
- Fix dangling resources on thermal_throttle_online() failure in the
Intel thermal_throttle driver (Ricardo Neri)
- Eliminate a possibility of running thermal testing module code
after that module has been removed (Rafael Wysocki)"
* tag 'thermal-7.2-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
thermal: testing: zone: Flush work items during cleanup
thermal: intel: Fix dangling resources on thermal_throttle_online() failure
The function thermal_throttle_add_dev() may fail and abort a CPU hotplug
online operation. Since the failure occurs within the online callback,
thermal_throttle_online(), the CPU hotplug framework does not invoke the
corresponding offline callback. As a result, the hardware and software
resources set up during the failed operation are not torn down.
Since only thermal_throttle_add_dev() can fail, call it before setting up
the rest of the resources.
Fixes: f6656208f0 ("x86/mce/therm_throt: Optimize notifications of thermal throttle")
Signed-off-by: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
Link: https://patch.msgid.link/20260613-rneri-directed-therm-intr-v3-1-3a26d1e47fc8@linux.intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
- CPUID API updates (Ahmed S. Darwish):
- Introduce a centralized CPUID parser
- Introduce a centralized CPUID data model
- Introduce <asm/cpuid/leaf_types.h>
- Rename cpuid_leaf()/cpuid_subleaf() APIs
- treewide: Explicitly include the x86 CPUID headers
- Update to x86-cpuid-db v3.1 (Maciej Wieczor-Retman)
- Continued removal of pre-i586 support and related
simplifications (Ingo Molnar)
- Add Intel CPU model number for rugged Panther Lake
(Tony Luck)
- Misc fixes, updates and cleanups by Arnd Bergmann, Chao Gao,
Lukas Bulwahn, Sohil Mehta, Maciej Wieczor-Retman.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-cpu-2026-06-14' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip
Pull x86 cpuid updates from Ingo Molnar:
- CPUID API updates (Ahmed S. Darwish):
- Introduce a centralized CPUID parser
- Introduce a centralized CPUID data model
- Introduce <asm/cpuid/leaf_types.h>
- Rename cpuid_leaf()/cpuid_subleaf() APIs
- treewide: Explicitly include the x86 CPUID headers
- Update to x86-cpuid-db v3.1 (Maciej Wieczor-Retman)
- Continued removal of pre-i586 support and related simplifications
(Ingo Molnar)
- Add Intel CPU model number for rugged Panther Lake (Tony Luck)
- Misc fixes, updates and cleanups by Arnd Bergmann, Chao Gao, Lukas
Bulwahn, Sohil Mehta, Maciej Wieczor-Retman.
* tag 'x86-cpu-2026-06-14' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip: (25 commits)
x86/cpu: Make CONFIG_X86_CX8 unconditional
x86/cpu: Remove unused !CONFIG_X86_TSC code
x86/cpuid: Update bitfields to x86-cpuid-db v3.1
tools/x86/kcpuid: Update bitfields to x86-cpuid-db v3.1
x86/cpu: Make CONFIG_X86_TSC unconditional
MAINTAINERS: Drop obsolete FPU EMULATOR section
x86/cpu: Fix a F00F bug warning and clean up surrounding code
x86/cpu: Add Intel CPU model number for rugged Panther Lake
x86/cpuid: Introduce a centralized CPUID parser
x86/cpu: Introduce a centralized CPUID data model
x86/cpuid: Introduce <asm/cpuid/leaf_types.h>
x86/cpuid: Rename cpuid_leaf()/cpuid_subleaf() APIs
x86/cpu: Do not include the CPUID API header in asm/processor.h
Documentation: core-api/cpu_hotplug: Remove stale cpu0_hotplug docs
x86/cpu, cpufreq: Remove AMD ELAN support
x86/fpu: Remove the math-emu/ FPU emulation library
x86/fpu: Remove the 'no387' boot option
x86/fpu: Remove MATH_EMULATION and related glue code
treewide: Explicitly include the x86 CPUID headers
x86/cpu: Remove the CONFIG_X86_INVD_BUG quirk
...
In order to prepare retiring wrmsr_safe_on_cpu() switch
wrmsr_safe_on_cpu() users to wrmsrq_safe_on_cpu().
Tested-by: K Prateek Nayak <kprateek.nayak@amd.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Rafael J. Wysocki <rafael@kernel.org>
Cc: Daniel Lezcano <daniel.lezcano@kernel.org>
Link: https://patch.msgid.link/20260608051741.3207435-11-jgross@suse.com
In order to prepare retiring rdmsr_safe_on_cpu() switch
rdmsr_safe_on_cpu() users to rdmsrq_safe_on_cpu().
Tested-by: K Prateek Nayak <kprateek.nayak@amd.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Rafael J. Wysocki <rafael@kernel.org>
Cc: Daniel Lezcano <daniel.lezcano@kernel.org>
Link: https://patch.msgid.link/20260608051741.3207435-9-jgross@suse.com
In order to prepare retiring wrmsr_on_cpu() switch wrmsr_on_cpu() users
to wrmsrq_on_cpu().
Tested-by: K Prateek Nayak <kprateek.nayak@amd.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Rafael J. Wysocki <rafael@kernel.org>
Cc: Daniel Lezcano <daniel.lezcano@kernel.org>
Link: https://patch.msgid.link/20260608051741.3207435-6-jgross@suse.com
cpumask_get() is used as a sysfs getter for the cpumask module
parameter. Use sysfs_emit() and cpumask_pr_args() to emit the mask.
This prepares for removing cpumap_print_to_pagebuf().
Signed-off-by: Yury Norov <ynorov@nvidia.com>
Link: https://patch.msgid.link/20260528183625.870813-16-ynorov@nvidia.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
proc_thermal_ptc_add() ignores the return value of ptc_create_groups()
causing the driver to silenty continue even if sysfs group creation
fails.
The thermal control interface would be unavailable with no indication
of failure.
Check the return value and on failure clean up any sysfs groups that
were successfully created before the error, then propagate the error to
the caller which already handles it correctly via goto err_rem_rapl.
Signed-off-by: Aravind Anilraj <aravindanilraj0702@gmail.com>
Link: https://patch.msgid.link/20260329070642.10721-3-aravindanilraj0702@gmail.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The value parameter is u32 but is shifted into a u64 register value
without casting first. If the shift amount pushes bits beyond 32, they
are lost. Cast value to u64 before shifting to ensure all bits are
preserved.
Signed-off-by: Aravind Anilraj <aravindanilraj0702@gmail.com>
Link: https://patch.msgid.link/20260329070642.10721-2-aravindanilraj0702@gmail.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Modify all CPUID call sites which implicitly include any of the CPUID
headers to explicitly include them instead.
For KVM's reverse_cpuid.h, just include <asm/cpuid/types.h> since it
references the CPUID_EAX..EDX symbols without using the CPUID APIs.
Note, this allows removing the inclusion of <asm/cpuid/api.h> from within
<asm/processor.h> next. That allows the CPUID API headers to include
<asm/processor.h> without introducing a circular dependency.
Signed-off-by: Ahmed S. Darwish <darwi@linutronix.de>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/20260327021645.555257-1-darwi@linutronix.de
- new API: bitmap_weight_from() and bitmap_weighted_xor() (Yury);
- drop unused __find_nth_andnot_bit() (Yury);
- new tests and test improvements (Andy, Akinobu, Yury);
- fixes for count_zeroes API (Yury);
- cleanup bitmap_print_to_pagebuf() mess (Yury);
- documentation updates (Andy, Kai, Kit).
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Merge tag 'bitmap-for-v7.1' of https://github.com/norov/linux
Pull bitmap updates from Yury Norov:
- new API: bitmap_weight_from() and bitmap_weighted_xor() (Yury)
- drop unused __find_nth_andnot_bit() (Yury)
- new tests and test improvements (Andy, Akinobu, Yury)
- fixes for count_zeroes API (Yury)
- cleanup bitmap_print_to_pagebuf() mess (Yury)
- documentation updates (Andy, Kai, Kit).
* tag 'bitmap-for-v7.1' of https://github.com/norov/linux: (24 commits)
bitops: Update kernel-doc for sign_extendXX()
powerpc/xive: simplify xive_spapr_debug_show()
thermal: intel: switch cpumask_get() to using cpumask_print_to_pagebuf()
coresight: don't use bitmap_print_to_pagebuf()
lib/prime_numbers: drop temporary buffer in dump_primes()
drm/xe: switch xe_pagefault_queue_init() to using bitmap_weighted_or()
ice: use bitmap_empty() in ice_vf_has_no_qs_ena
ice: use bitmap_weighted_xor() in ice_find_free_recp_res_idx()
bitmap: introduce bitmap_weighted_xor()
bitmap: add test_zero_nbits()
bitmap: exclude nbits == 0 cases from bitmap test
bitmap: test bitmap_weight() for more
asm-generic/bitops: Fix a comment typo in instrumented-atomic.h
bitops: fix kernel-doc parameter name for parity8()
lib: count_zeros: unify count_{leading,trailing}_zeros()
lib: count_zeros: fix 32/64-bit inconsistency in count_trailing_zeros()
lib: crypto: fix comments for count_leading_zeros()
x86/topology: use bitmap_weight_from()
bitmap: add bitmap_weight_from()
lib/find_bit_benchmark: avoid clearing randomly filled bitmap in test_find_first_bit()
...
- Fix thermal core issues related to thermal zone removal and
registration errors that may lead to a use-after-free or a memory
leak in some cases (Rafael Wysocki)
- Drop a redundant check from thermal_zone_device_update(), adjust
thermal workqueue allocation flags, and switch over thermal_class
allocation to static (Rafael Wysocki)
- Relocate the suspend and resume of thermal zones closer to the
suspend and resume of devices, respectively (Rafael Wysocki)
- Remove a pointless variable used in the thermal core when
registering a cooling device (Daniel Lezcano)
- Replace sprintf() in thermal_bind_cdev_to_trip() and use
str_enabled_disabled() helper in mode_show() (Thorsten Blum)
- Replace cpumask_weight() in intel_hfi_offline() with cpumask_empty()
which is generally more efficient (Yury Norov)
- Add support for reading DDR data rate from PCI config space on Nova
Lake platforms to the int340x thermal driver (Srinivas Pandruvada)
- Add an OF node address to output message to make sensor names more
distinguishable (Alexander Stein)
- Add hwmon support for the i.MX97 thermal sensor (Alexander Stein)
- Clamp correctly the results when doing value/temperature conversion
in the Spreadtrum driver (Thorsten Blum)
- Add SDM670 compatible DT bindings for the Tsens and the lMH thermal
drivers (Richard Acayan)
- Add SM8750 compatible DT bindings for the Tsens thermal driver (Manaf
Meethalavalappu Pallikunhi)
- Add Eliza SoC compatible DT bindings for the Tsens driver (Krzysztof
Kozlowski)
- Fix inverted condition check on error in the Spear thermal control
driver (Gopi Krishna Menon)
- Convert DT bindings documentation into DT schema (Gopi Krishna Menon)
- Use max() macro to increase readability in the Broadcom STB thermal
sensor (Thorsten Blum)
- Remove a stale @trim_offset kernel-doc entry (John Madieu)
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Merge tag 'thermal-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull thermal control updates from Rafael Wysocki:
"These include thermal core fixes and simplifications, driver fixes and
new hardware support (SDM670, Eliza SoC), new driver features (hwmon
support in imx91, DDR data rate on Nova Lake in int340x), and a
handful of cleanups:
- Fix thermal core issues related to thermal zone removal and
registration errors that may lead to a use-after-free or a memory
leak in some cases (Rafael Wysocki)
- Drop a redundant check from thermal_zone_device_update(), adjust
thermal workqueue allocation flags, and switch over thermal_class
allocation to static (Rafael Wysocki)
- Relocate the suspend and resume of thermal zones closer to the
suspend and resume of devices, respectively (Rafael Wysocki)
- Remove a pointless variable used in the thermal core when
registering a cooling device (Daniel Lezcano)
- Replace sprintf() in thermal_bind_cdev_to_trip() and use
str_enabled_disabled() helper in mode_show() (Thorsten Blum)
- Replace cpumask_weight() in intel_hfi_offline() with
cpumask_empty() which is generally more efficient (Yury Norov)
- Add support for reading DDR data rate from PCI config space on Nova
Lake platforms to the int340x thermal driver (Srinivas Pandruvada)
- Add an OF node address to output message to make sensor names more
distinguishable (Alexander Stein)
- Add hwmon support for the i.MX97 thermal sensor (Alexander Stein)
- Clamp correctly the results when doing value/temperature conversion
in the Spreadtrum driver (Thorsten Blum)
- Add SDM670 compatible DT bindings for the Tsens and the lMH thermal
drivers (Richard Acayan)
- Add SM8750 compatible DT bindings for the Tsens thermal driver
(Manaf Meethalavalappu Pallikunhi)
- Add Eliza SoC compatible DT bindings for the Tsens driver
(Krzysztof Kozlowski)
- Fix inverted condition check on error in the Spear thermal control
driver (Gopi Krishna Menon)
- Convert DT bindings documentation into DT schema (Gopi Krishna
Menon)
- Use max() macro to increase readability in the Broadcom STB thermal
sensor (Thorsten Blum)
- Remove a stale @trim_offset kernel-doc entry (John Madieu)"
* tag 'thermal-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (25 commits)
thermal: renesas: rzg3e: Remove stale @trim_offset kernel-doc entry
thermal: core: Suspend thermal zones later and resume them earlier
thermal: core: Allocate thermal_class statically
thermal: core: Adjust thermal_wq allocation flags
thermal: core: Drop redundant check from thermal_zone_device_update()
thermal: core: Free thermal zone ID later during removal
thermal: core: Fix thermal zone governor cleanup issues
thermal/core: Remove pointless variable when registering a cooling device
thermal/drivers/brcmstb_thermal: Use max to simplify brcmstb_get_temp
dt-bindings: thermal: st,thermal-spear1340: convert to dtschema
thermal/drivers/spear: Fix error condition for reading st,thermal-flags
dt-bindings: thermal: qcom-tsens: Add Eliza SoC TSENS
thermal: devfreq_cooling: avoid unnecessary kfree of freq_table
thermal: intel: hfi: use cpumask_empty() in intel_hfi_offline()
thermal: sysfs: Use str_enabled_disabled() helper in mode_show()
dt-bindings: thermal: qcom-tsens: Document the SM8750 Temperature Sensor
thermal/drivers/sprd: Use min instead of clamp in sprd_thm_temp_to_rawdata
dt-bindings: thermal: lmh: Add SDM670 compatible
dt-bindings: thermal: tsens: add SDM670 compatible
thermal/drivers/sprd: Fix raw temperature clamping in sprd_thm_rawdata_to_temp
...
Merge power capping updates for 7.1-rc1:
- Clean up and rearrange the intel_rapl power capping driver to make
the respective interface drivers (TPMI, MSR, and MMOI) hold their
own settings and primitives and consolidate PL4 and PMU support
flags into rapl_defaults (Kuppuswamy Sathyanarayanan)
- Correct kernel-doc function parameter names in the power capping core
code (Randy Dunlap)
* pm-powercap:
powercap: intel_rapl: Consolidate PL4 and PMU support flags into rapl_defaults
powercap: intel_rapl: Move MSR primitives to MSR driver
thermal: intel: int340x: processor: Move MMIO primitives to MMIO driver
powercap: intel_rapl: Move TPMI primitives to TPMI driver
powercap: intel_rapl: Move primitive info to header for interface drivers
powercap: intel_rapl: Remove unused macro definitions
powercap: intel_rapl: Move MSR default settings into MSR interface driver
powercap: intel_rapl: Remove unused AVERAGE_POWER primitive
powercap: correct kernel-doc function parameter names
thermal: intel: int340x: processor: Move RAPL defaults to MMIO driver
powercap: intel_rapl: Move TPMI default settings into TPMI interface driver
powercap: intel_rapl: Allow interface drivers to configure rapl_defaults
powercap: intel_rapl: Use unit conversion macros from units.h
powercap: intel_rapl: Use GENMASK() and BIT() macros
powercap: intel_rapl: Use shifts for power-of-2 operations
powercap: intel_rapl: Simplify rapl_compute_time_window_atom()
powercap: intel_rapl: Remove unused TIME_WINDOW macros
powercap: intel_rapl: Cleanup coding style
powercap: intel_rapl: Add a symbol namespace for intel_rapl exports
The function opencodes cpumask_print_to_pagebuf() with more generic
bitmap_print_to_pagebuf(). Switch to using the proper API.
Signed-off-by: Yury Norov <ynorov@nvidia.com>
MMIO-specific primitives differ from those used by the TPMI interface.
The MSR and MMIO interfaces shared the same primitives in the common
driver, but MMIO does not require many MSR-specific entries (like PSYS).
Keeping these in the common driver does not add any value and requires
interface-specific handling logic that makes the common layer
unnecessarily complex.
Move the MMIO primitive definitions and associated bitmasks into the
MMIO interface driver. This change includes:
1. Add MMIO-local struct rapl_primitive_info instance without
MSR-specific entries and assign it to priv->rpi during MMIO
initialization.
2. Remove the RAPL MMIO case from rapl_config() in the common driver.
No functional changes are intended.
Co-developed-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Link: https://patch.msgid.link/20260331211950.3329932-6-sathyanarayanan.kuppuswamy@linux.intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The slider offset can be set via debugfs for balanced mode. The offset
should be only applicable in balanced mode. For other modes, it should
be 0 when writing to MMIO offset,
Fixes: 8306bcaba0 ("thermal: intel: int340x: Add module parameter to change slider offset")
Tested-by: Erin Park <erin.park@intel.com>
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: 6.18+ <stable@vger.kernel.org> # 6.18+
[ rjw: Subject and changelog tweaks ]
Link: https://patch.msgid.link/20260324172346.3317145-1-srinivas.pandruvada@linux.intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Previously, the MMIO and MSR RAPL interfaces shared the same set of
RAPL defaults provided by common code. However, unlike the MSR
interface, the MMIO RAPL interface does not require CPU-specific
variations in its default handling. Keeping the RAPL defaults in
the RAPL common driver therefore provides no additional benefit.
Move the MMIO defaults into the MMIO interface driver. This change
includes the following updates:
* Introduce a MMIO-local rapl_defaults instance with the appropriate
default callbacks.
* Assign the MMIO-specific rapl_defaults to priv->defaults during
MMIO driver initialization.
No functional changes are expected.
Co-developed-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://patch.msgid.link/20260212233044.329790-11-sathyanarayanan.kuppuswamy@linux.intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cleanup of the intel_rapl common driver requires introducing additional
exported helper and lifecycle functions. Before adding new exports,
create a dedicated symbol namespace for intel_rapl and update the
relevant interface drivers to explicitly import it.
This makes the intended usage of these symbols explicit, avoids
polluting the global namespace, and prepares the codebase for the
ongoing RAPL refactoring.
No functional changes are intended.
Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://patch.msgid.link/20260212233044.329790-2-sathyanarayanan.kuppuswamy@linux.intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Add support for reading DDR data rate from PCI config offset.
The register details are:
CFG Offset : 0xE0
Bits : 11:2
DDR Data rate is in 33.33 MTPS units.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
[ rjw: Rearrange code to avoid using goto and make declarations consistent ]
Link: https://patch.msgid.link/20260223190420.874853-1-srinivas.pandruvada@linux.intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This converts some of the visually simpler cases that have been split
over multiple lines. I only did the ones that are easy to verify the
resulting diff by having just that final GFP_KERNEL argument on the next
line.
Somebody should probably do a proper coccinelle script for this, but for
me the trivial script actually resulted in an assertion failure in the
middle of the script. I probably had made it a bit _too_ trivial.
So after fighting that far a while I decided to just do some of the
syntactically simpler cases with variations of the previous 'sed'
scripts.
The more syntactically complex multi-line cases would mostly really want
whitespace cleanup anyway.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This was done entirely with mindless brute force, using
git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' |
xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/'
to convert the new alloc_obj() users that had a simple GFP_KERNEL
argument to just drop that argument.
Note that due to the extreme simplicity of the scripting, any slightly
more complex cases spread over multiple lines would not be triggered:
they definitely exist, but this covers the vast bulk of the cases, and
the resulting diff is also then easier to check automatically.
For the same reason the 'flex' versions will be done as a separate
conversion.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This is the result of running the Coccinelle script from
scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to
avoid scalar types (which need careful case-by-case checking), and
instead replace kmalloc-family calls that allocate struct or union
object instances:
Single allocations: kmalloc(sizeof(TYPE), ...)
are replaced with: kmalloc_obj(TYPE, ...)
Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...)
are replaced with: kmalloc_objs(TYPE, COUNT, ...)
Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...)
are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...)
(where TYPE may also be *VAR)
The resulting allocations no longer return "void *", instead returning
"TYPE *".
Signed-off-by: Kees Cook <kees@kernel.org>
When DLVR sysfs group creation fails in proc_thermal_rfim_add(),
the function returns immediately without cleaning up the FIVR group
that may have been created earlier.
Add proper error unwinding to remove the FIVR group before returning
failure.
Signed-off-by: Kaushlendra Kumar <kaushlendra.kumar@intel.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://patch.msgid.link/LV3PR11MB876881B77D32A2854AD2908EF563A@LV3PR11MB8768.namprd11.prod.outlook.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Simplify the error path by directly returning PTR_ERR(tcc_cdev)
instead of storing it in an intermediate variable ret which can be
dropped then because it is only used for that.
Also remove an uneeded empty line before the declaration of local
variable err.
Signed-off-by: Sumeet Pawnikar <sumeet4linux@gmail.com>
[ rjw: Dropped unneeded changes, rewrote changelog, adjusted subject ]
Link: https://patch.msgid.link/20260131151615.6230-1-sumeet4linux@gmail.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
After commit be0a3600aa ("thermal: sysfs: Rework the handling of trip
point updates"), THERMAL_TEMP_INVALID can be passed to sys_set_trip_temp()
and it is treated as a regular temperature value there, so the sysfs
write fails even though it is expected to succeed and disable the given
trip point.
Address this by making sys_set_trip_temp() clear its temp variable when
it is equal to THERMAL_TEMP_INVALID.
Fixes: be0a3600aa ("thermal: sysfs: Rework the handling of trip point updates")
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://patch.msgid.link/2815400.mvXUDI8C0e@rafael.j.wysocki
Replace sprintf() with sysfs_emit() in sysfs show functions.
sysfs_emit() is preferred to format sysfs output as it provides better
bounds checking.
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
[ rjw: Subject tweaks ]
Link: https://patch.msgid.link/20260113082130.789891-2-thorsten.blum@linux.dev
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Fix typo "nagative" -> "negative" for cpu argument value in
comment section.
Signed-off-by: Sumeet Pawnikar <sumeet4linux@gmail.com>
[ rjw: Subject tweak ]
Link: https://patch.msgid.link/20260111160739.15984-1-sumeet4linux@gmail.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Replace sprintf() with sysfs_emit() and sysfs_emit_at() in sysfs show
functions.
sysfs_emit() and sysfs_emit_at() are preferred to format sysfs output
as they provide better bounds checking.
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Reviewed-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
[ rjw: Subject adjustment, changelog edits ]
Link: https://patch.msgid.link/20251220223026.125678-1-thorsten.blum@linux.dev
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
On processors starting from Panther Lake, additional workload type hints
are provided.
The hardware analyzes workload residencies over an extended period to
determine whether the workload classification tends toward idle/battery
life states or sustained/performance states. Based on this long-term
analysis, it classifies:
Power Classification: If the workload exhibits more idle or battery
life residencies, it is classified as "power". This is indicated by
setting bit 4 of the current workload type.
Performance Classification: If the workload exhibits more sustained
or performance residencies, it is classified as "performance". This
is indicated by clearing bit 4 of the current workload type.
This approach enables applications to ignore short-term workload
fluctuations and instead respond to longer-term power vs. performance
trends. Hints of this type are called slow workload hints.
To get notifications for slow workload hints, bit 22 in the thermal
mailbox can be used for configuring workload interrupts. It is possible
to exclusively enable slow workload hints or enable them in addition to
the current workload hints.
To enable slow workload hints, a new sysfs attribute is added to the
existing workload hint attributes:
workload_slow_hint_enable (RW): Write 1 to enable, 0 to disable.
Reading this attribute shows the current state.
This attribute is not present on any previous generation of processors.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
[ rjw: Dropped redundant local variables, changelog edits ]
Link: https://patch.msgid.link/20251218222559.4110027-2-srinivas.pandruvada@linux.intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The driver uses devm_kzalloc() for device allocation, making the
pci_set_drvdata(pdev, NULL) call in the remove path unnecessary.
The driver core clears drvdata automatically during device removal.
Signed-off-by: Kaushlendra Kumar <kaushlendra.kumar@intel.com>
[ rjw: Subject rewrite ]
Link: https://patch.msgid.link/20251215091352.1250531-1-kaushlendra.kumar@intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
