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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()
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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
...
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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
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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>
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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>
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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: 8306bcaba06d ("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>
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cpumask_empty() is more efficient as it may return earlier.
Switch to using it.
Signed-off-by: Yury Norov <ynorov@nvidia.com>
Link: https://patch.msgid.link/20260314191016.603067-1-ynorov@nvidia.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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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>
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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>
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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>
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Conversion performed via this Coccinelle script:
// SPDX-License-Identifier: GPL-2.0-only
// Options: --include-headers-for-types --all-includes --include-headers --keep-comments
virtual patch
@gfp depends on patch && !(file in "tools") && !(file in "samples")@
identifier ALLOC = {kmalloc_obj,kmalloc_objs,kmalloc_flex,
kzalloc_obj,kzalloc_objs,kzalloc_flex,
kvmalloc_obj,kvmalloc_objs,kvmalloc_flex,
kvzalloc_obj,kvzalloc_objs,kvzalloc_flex};
@@
ALLOC(...
- , GFP_KERNEL
)
$ make coccicheck MODE=patch COCCI=gfp.cocci
Build and boot tested x86_64 with Fedora 42's GCC and Clang:
Linux version 6.19.0+ (user@host) (gcc (GCC) 15.2.1 20260123 (Red Hat 15.2.1-7), GNU ld version 2.44-12.fc42) #1 SMP PREEMPT_DYNAMIC 1970-01-01
Linux version 6.19.0+ (user@host) (clang version 20.1.8 (Fedora 20.1.8-4.fc42), LLD 20.1.8) #1 SMP PREEMPT_DYNAMIC 1970-01-01
Signed-off-by: Kees Cook <kees@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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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>
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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>
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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>
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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>
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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>
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After commit be0a3600aa1e ("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: be0a3600aa1e ("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
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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>
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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>
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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>
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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>
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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>
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Add Panther Lake, Wildcat Lake and Nova Lake CPU models in the support
list.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://patch.msgid.link/20251218195150.3872795-1-srinivas.pandruvada@linux.intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Set the PROC_THERMAL_FEATURE_SOC_POWER_SLIDER feature flag in
proc_thermal_pci_ids[] for Wildcat Lake to enable power slider interface.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://patch.msgid.link/20251205230007.2218533-1-srinivas.pandruvada@linux.intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull SoC driver updates from Arnd Bergmann:
"This is the first half of the driver changes:
- A treewide interface change to the "syscore" operations for power
management, as a preparation for future Tegra specific changes
- Reset controller updates with added drivers for LAN969x, eic770 and
RZ/G3S SoCs
- Protection of system controller registers on Renesas and Google
SoCs, to prevent trivially triggering a system crash from e.g.
debugfs access
- soc_device identification updates on Nvidia, Exynos and Mediatek
- debugfs support in the ST STM32 firewall driver
- Minor updates for SoC drivers on AMD/Xilinx, Renesas, Allwinner, TI
- Cleanups for memory controller support on Nvidia and Renesas"
* tag 'soc-drivers-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (114 commits)
memory: tegra186-emc: Fix missing put_bpmp
Documentation: reset: Remove reset_controller_add_lookup()
reset: fix BIT macro reference
reset: rzg2l-usbphy-ctrl: Fix a NULL vs IS_ERR() bug in probe
reset: th1520: Support reset controllers in more subsystems
reset: th1520: Prepare for supporting multiple controllers
dt-bindings: reset: thead,th1520-reset: Add controllers for more subsys
dt-bindings: reset: thead,th1520-reset: Remove non-VO-subsystem resets
reset: remove legacy reset lookup code
clk: davinci: psc: drop unused reset lookup
reset: rzg2l-usbphy-ctrl: Add support for RZ/G3S SoC
reset: rzg2l-usbphy-ctrl: Add support for USB PWRRDY
dt-bindings: reset: renesas,rzg2l-usbphy-ctrl: Document RZ/G3S support
reset: eswin: Add eic7700 reset driver
dt-bindings: reset: eswin: Documentation for eic7700 SoC
reset: sparx5: add LAN969x support
dt-bindings: reset: microchip: Add LAN969x support
soc: rockchip: grf: Add select correct PWM implementation on RK3368
soc/tegra: pmc: Add USB wake events for Tegra234
amba: tegra-ahb: Fix device leak on SMMU enable
...
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull thermal control updates from Rafael Wysocki:
"These add Nova Lake processor support to the Intel thermal drivers and
DPTF code, update thermal control documentation, simplify the ACPI
DPTF code related to thermal control, add QCS8300 compatible to the
tsens thermal DT bindings, add DT bindings for NXP i.MX91 thermal
module and add support for it to the imx91 thermal driver, update a
few other thermal drivers and fix a format string issue in a thermal
utility:
- Add Nova Lake processor thermal device to the int340x
processor_thermal driver, add DLVR support for Nova Lake to it, add
Nova Lake support to the ACPI DPTF code, document thermal
throttling on Intel platforms, and update workload type hint
interface documentation (Srinivas Pandruvada)
- Remove int340x thermal scan handler from the ACPI DPTF code because
it turned out to be unnecessary (Slawomir Rosek)
- Clean up the Intel int340x thermal driver (Kaushlendra Kumar)
- Document the RZ/V2H TSU DT bindings (Ovidiu Panait)
- Document the Kaanapali Temperature Sensor (Manaf Meethalavalappu
Pallikunhi)
- Document R-Car Gen4 and RZ/G2 support in driver comment (Marek
Vasut)
- Convert to DEFINE_SIMPLE_DEV_PM_OPS() in R-Car [Gen3] (Geert
Uytterhoeven)
- Fix format string bug in thermal-engine (Malaya Kumar Rout)
- Make ipq5018 tsens standalone compatible (George Moussalem)
- Add the QCS8300 compatible for QCom Tsens (Gaurav Kohli)
- Add support for the NXP i.MX91 thermal module, including the DT
bindings (Pengfei Li)"
* tag 'thermal-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
thermal/drivers/imx91: Add support for i.MX91 thermal monitoring unit
dt-bindings: thermal: fsl,imx91-tmu: add bindings for NXP i.MX91 thermal module
dt-bindings: thermal: tsens: Add QCS8300 compatible
dt-bindings: thermal: qcom-tsens: make ipq5018 tsens standalone compatible
tools/thermal/thermal-engine: Fix format string bug in thermal-engine
docs: driver-api/thermal/intel_dptf: Add new workload type hint
thermal/drivers/rcar_gen3: Convert to DEFINE_SIMPLE_DEV_PM_OPS()
thermal/drivers/rcar: Convert to DEFINE_SIMPLE_DEV_PM_OPS()
Documentation: thermal: Document thermal throttling on Intel platforms
ACPI: DPTF: Support Nova Lake
thermal: intel: int340x: Add DLVR support for Nova Lake
thermal: int340x: processor_thermal: Add Nova Lake processor thermal device
thermal: intel: int340x: Replace sprintf() with sysfs_emit()
thermal: intel: int340x: Use symbolic constant for UUID comparison
thermal/drivers/rcar_gen3: Document R-Car Gen4 and RZ/G2 support in driver comment
dt-bindings: thermal: qcom-tsens: document the Kaanapali Temperature Sensor
dt-bindings: thermal: r9a09g047-tsu: Document RZ/V2H TSU
ACPI: DPTF: Remove int340x thermal scan handler
thermal: intel: Select INT340X_THERMAL from INTEL_SOC_DTS_THERMAL
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The current read_raw() implementation of the TPMI, MMIO and MSR
interfaces does not distinguish between atomic and non-atomic callers.
rapl_msr_read_raw() uses rdmsrq_safe_on_cpu(), which can sleep and
issue cross CPU calls. When MSR-based RAPL PMU support is enabled, PMU
event handlers can invoke this function from atomic context where
sleeping or rescheduling is not allowed. In atomic context, the caller
is already executing on the target CPU, so a direct rdmsrq() is
sufficient.
To support such usage, introduce an atomic flag to the read_raw()
interface to allow callers pass the context information. Modify the
common RAPL code to propagate this flag, and set the flag to reflect
the calling contexts.
Utilize the atomic flag in rapl_msr_read_raw() to perform direct MSR
read with rdmsrq() when running in atomic context, and a sanity check
to ensure target CPU matches the current CPU for such use cases.
The TPMI and MMIO implementations do not require special atomic
handling, so the flag is ignored in those paths.
This is a preparatory patch for adding MSR-based RAPL PMU support.
Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Reviewed-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
[ rjw: Subject tweak ]
Link: https://patch.msgid.link/20251121000539.386069-2-sathyanarayanan.kuppuswamy@linux.intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Several drivers can benefit from registering per-instance data along
with the syscore operations. To achieve this, move the modifiable fields
out of the syscore_ops structure and into a separate struct syscore that
can be registered with the framework. Add a void * driver data field for
drivers to store contextual data that will be passed to the syscore ops.
Acked-by: Rafael J. Wysocki (Intel) <rafael@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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Add Nova Lake ACPI IDs for DPTF.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://patch.msgid.link/20251111004552.137984-3-srinivas.pandruvada@linux.intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Add support for DLVR (Digital Linear Voltage Regulator) for Nova Lake.
There are no new sysfs attributes or difference in operations compared
to prior generations.
MMIO offset and bit positions are changed. Also no mapping is required
as units are already in MHz.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://patch.msgid.link/20251111004552.137984-2-srinivas.pandruvada@linux.intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Add PCI IDs for Nova Lake processor thermal device.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://patch.msgid.link/20251111004552.137984-1-srinivas.pandruvada@linux.intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Replace sprintf() calls with sysfs_emit() in sysfs "show" functions to
follow current kernel coding standards.
sysfs_emit() is the preferred method for formatting sysfs output as it
provides better bounds checking and is more secure.
Signed-off-by: Kaushlendra Kumar <kaushlendra.kumar@intel.com>
[ rjw: Subject adjustments, changelog edits ]
Link: https://patch.msgid.link/20251030053410.311656-1-kaushlendra.kumar@intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Replace sizeof() with a symbolic constant for UUID matching to maintain
existing ABI behavior while improving code clarity. The current behavior
of comparing only the first 7 characters is sufficient to distinguish
all UUIDs and changing to full string comparison would alter the kernel
ABI, potentially breaking existing userspace applications.
Use a defined constant to make the truncated comparison explicit and
maintainable.
Signed-off-by: Kaushlendra Kumar <kaushlendra.kumar@intel.com>
[ rjw: Subject adjustments ]
Link: https://patch.msgid.link/20251030035955.62171-1-kaushlendra.kumar@intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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The IRQ used by the Intel SoC DTS thermal device for critical
overheating notification is listed in _CRS of device INT3401 which
therefore needs to be enumerated for Intel SoC DTS thermal to work.
The enumeration happens by binding the int3401_thermal driver to the
INT3401 platform device. Thus CONFIG_INT340X_THERMAL is in fact
necessary for enumerating it, so checking CONFIG_INTEL_SOC_DTS_THERMAL
in int340x_thermal_handler_attach() is pointless and INT340X_THERMAL
may as well be selected by INTEL_SOC_DTS_THERMAL.
Signed-off-by: Slawomir Rosek <srosek@google.com>
[ rjw: New subject ]
Link: https://patch.msgid.link/20251103162516.2606158-2-srosek@google.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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When the module parameter slider_balance is set to the performance
slider value of 0, the SoC slider profile switches to the performance
mode.
This can cause the Linux power-profiles-daemon to change the system
power mode to performance from balanced mode. This happens when there
is only one platform profile registered as there will be no conflict
with other platform profiles.
Same issue occurs when the slider_balance is set to the power-saver
slider value.
Prevent module parameter slider_balance from overlapping with
performance and power-saver slider values by adding range validation.
Return an error when an invalid value is provided.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://patch.msgid.link/20250923205631.3056590-1-srinivas.pandruvada@linux.intel.com
[ rjw: Changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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SoC slider value is set by the user (or the default when user has not
modified it). To enhance power efficiency dynamically, the firmware can
optionally auto-adjust the slider value based on the current workload.
This adjustment is governed by an additional parameter known as the
"slider offset". This offset permits the firmware to increase the slider
value up to and including "SoC slider + slider offset".
Add a module parameter to specify this "slier offset" value.
By default, the SoC slider offset is set to 0. This means that SoC is not
allowed to switch slider position.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://patch.msgid.link/20250825132315.75521-5-srinivas.pandruvada@linux.intel.com
[ rjw: Comment and module param description adjustments ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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By default, the SoC slider value for the "balanced" platform profile is
set to 3. This update introduces a new module parameter, allowing users
to modify this default value.
The module parameter can be specified during load time to set a custom
slider value for the "balanced" profile. If the module parameter is not
specified at load time and is updated later, the new value will only take
effect after the next write of "balanced" to the sysfs "profile"
attribute.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://patch.msgid.link/20250825132315.75521-4-srinivas.pandruvada@linux.intel.com
[ rjw: Minor adjustments of module param description ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Set the PROC_THERMAL_FEATURE_SOC_POWER_SLIDER feature flag in
proc_thermal_pci_ids[] for Panther Lake to enable power slider interface.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://patch.msgid.link/20250825132315.75521-3-srinivas.pandruvada@linux.intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Add support for system wide energy performance preference using a SoC
slider interface defined via processor thermal PCI device MMIO space.
Using Linux platform-profile class API, register a new platform profile.
Provide three platform power profile choices:
"performance", "balanced" and "low-power".
Profile sysfs is located at:
/sys/class/platform-profile/platform-profile-*
where attribute "name" is presented as "SoC Power Slider".
At boot by default the slider is set to balanced mode. This profile is
changed by user space based on user preference via power profile daemon
or directly writing to the "profile" sysfs attribute.
Add a CPU model specific processor thermal device feature
PROC_THERMAL_FEATURE_SOC_POWER_SLIDER. When enabled for a CPU model,
slider interface is registered.
During system suspend callback save slider register and restore during
resume callback.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://patch.msgid.link/20250825132315.75521-2-srinivas.pandruvada@linux.intel.com
[ rjw: Removal of redundant outer parens from one expression ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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acpi_evaluate_object() returns an error if the needed method does not
exist, so remove an unnecessary acpi_has_method() call preceding it.
Signed-off-by: Salah Triki <salah.triki@gmail.com>
Link: https://patch.msgid.link/aIMQ9RFciI8jmmAh@pc
[ rjw: Subject adjustment ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull thermal control updates from Rafael Wysocki:
"These update the thermal control sysfs interface and multiple thermal
control drivers:
- Convert EAGAIN into ENODATA in temp_show() to prevent user space
from polling the sysfs file in vain after a failing O_NONBLOCK read
under the assumption that the read would have blocked (Hsin-Te
Yuan)
- Add Wildcat Lake PCI ID to the int340x Intel processor thermal
driver (Srinivas Pandruvada)
- Add debugfs interface to override the temperature set by the
firmware in the Intel platform temperature control (PTC) interface
and add a new sysfs control attribute called thermal_tolerance to
it (Srinivas Pandruvada)
- Enable the stage 2 shutdown in the qcom-spmi-temp-alarm thermal
driver and add support for more SPMI variants to it (Anjelique
Melendez)
- Constify the thermal_zone_device_ops structure where possible in
several assorted thermal drivers (Christophe Jaillet)
- Use the dev_fwnode() helper instead of of_fwnode_handle(), as it is
more adequate, wherever possible in thermal drivers (Jiri Slaby)
- Implement and document One-Time Programmable fuse support in the
Rockchip thermal driver in order to increase the precision of the
measurements (Nicolas Frattaroli)
- Change the way the Mediatek LTVS thermal driver stores the
initialization data sequence to support different sequences
matching different platforms. Introduce mt7988 support with a new
initialization sequence (Mason Chang)
- Document the QCom TSens Milos Temperature Sensor DT bindings (Luca
Weiss)
- Add the fallback compatible string for MT7981 and MT8516 DT
bindings (Aleksander Jan Bajkowski)
- Add the compatible string for the Tegra210B01 SOC_THERM driver
(Aaron Kling)"
* tag 'thermal-6.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (23 commits)
dt-bindings: thermal: tegra: Document Tegra210B01
dt-bindings: thermal: mediatek: Add fallback compatible string for MT7981 and MT8516
dt-bindings: thermal: qcom-tsens: document the Milos Temperature Sensor
thermal/drivers/mediatek/lvts_thermal: Add mt7988 lvts commands
thermal/drivers/mediatek/lvts_thermal: Add lvts commands and their sizes to driver data
thermal/drivers/mediatek/lvts_thermal: Change lvts commands array to static const
thermal/drivers/rockchip: Support reading trim values from OTP
dt-bindings: thermal: rockchip: document otp thermal trim
thermal/drivers/rockchip: Support RK3576 SoC in the thermal driver
dt-bindings: rockchip-thermal: Add RK3576 compatible
thermal/drivers/rockchip: Rename rk_tsadcv3_tshut_mode
thermal: Use dev_fwnode()
thermal: Constify struct thermal_zone_device_ops
thermal/drivers/loongson2: Constify struct thermal_zone_device_ops
thermal/drivers/qcom-spmi-temp-alarm: Add support for LITE PMIC peripherals
thermal/drivers/qcom-spmi-temp-alarm: Add support for GEN2 rev 2 PMIC peripherals
thermal/drivers/qcom-spmi-temp-alarm: Prepare to support additional Temp Alarm subtypes
thermal/drivers/qcom-spmi-temp-alarm: Add temp alarm data struct based on HW subtype
thermal/drivers/qcom-spmi-temp-alarm: Enable stage 2 shutdown when required
thermal: sysfs: Return ENODATA instead of EAGAIN for reads
...
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'struct thermal_zone_device_ops' are not modified in these drivers.
Constifying these structures moves some data to a read-only section, so
increases overall security, especially when the structure holds some
function pointers.
On a x86_64, with allmodconfig, as an example:
Before:
======
text data bss dec hex filename
28116 5168 128 33412 8284 drivers/thermal/armada_thermal.o
After:
=====
text data bss dec hex filename
28244 5040 128 33412 8284 drivers/thermal/armada_thermal.o
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com> # For Armada
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://lore.kernel.org/r/5bba3bf0139e2418b306a0f9a2f1f81ef49e88a6.1748165978.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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Add Wildcat Lake PCI ID for processor thermal device.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://patch.msgid.link/20250617231940.3314546-1-srinivas.pandruvada@linux.intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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