linux.git/tools/power, branch v6.18.21 Clone of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git tools/power cpupower: Reset errno before strtoull() 2026-03-04T12:19:33+00:00 Kaushlendra Kumar kaushlendra.kumar@intel.com 2025-12-01T12:17:45+00:00 c7671c46dab46c540743e57a5c6f7628acfefc6d [ Upstream commit f9bd3762cf1bd0c2465f2e6121b340883471d1bf ] cpuidle_state_get_one_value() never cleared errno before calling strtoull(), so a prior ERANGE caused every cpuidle counter read to return zero. Reset errno to 0 before the conversion so each sysfs read is evaluated independently. Link: https://lore.kernel.org/r/20251201121745.3776703-1-kaushlendra.kumar@intel.com Signed-off-by: Kaushlendra Kumar <kaushlendra.kumar@intel.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org> 
[ Upstream commit f9bd3762cf1bd0c2465f2e6121b340883471d1bf ]

cpuidle_state_get_one_value() never cleared errno before calling
strtoull(), so a prior ERANGE caused every cpuidle counter read to
return zero. Reset errno to 0 before the conversion so each sysfs read
is evaluated independently.

Link: https://lore.kernel.org/r/20251201121745.3776703-1-kaushlendra.kumar@intel.com
Signed-off-by: Kaushlendra Kumar <kaushlendra.kumar@intel.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
tools/cpupower: Fix inverted APERF capability check 2026-03-04T12:19:33+00:00 Kaushlendra Kumar kaushlendra.kumar@intel.com 2025-11-26T09:16:13+00:00 f0729486c9076e3beb410dbdae98450981581e60 [ Upstream commit 24858a84163c8d04827166b3bcaed80612bb62fc ] The capability check was inverted, causing the function to return error when APERF support is available and proceed when it is not. Negate the condition to return error only when APERF capability is absent. Link: https://lore.kernel.org/r/20251126091613.567480-1-kaushlendra.kumar@intel.com Signed-off-by: Kaushlendra Kumar <kaushlendra.kumar@intel.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org> 
[ Upstream commit 24858a84163c8d04827166b3bcaed80612bb62fc ]

The capability check was inverted, causing the function to return
error when APERF support is available and proceed when it is not.

Negate the condition to return error only when APERF capability
is absent.

Link: https://lore.kernel.org/r/20251126091613.567480-1-kaushlendra.kumar@intel.com
Signed-off-by: Kaushlendra Kumar <kaushlendra.kumar@intel.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
tools/power/x86/intel-speed-select: Fix file descriptor leak in isolate_cpus() 2026-02-26T22:59:25+00:00 Malaya Kumar Rout mrout@redhat.com 2026-01-15T10:03:33+00:00 71b23ada25b337135fd36089bca44748095428b9 [ Upstream commit 56c17ee151c6e1a73d77e15b82a8e2130cd8dd16 ] The file descriptor opened in isolate_cpus() when (!level) is true was not being closed before returning, causing a file descriptor leak in both the error path and the success path. When write() fails at line 950, the function returns at line 953 without closing the file descriptor. Similarly, on success, the function returns at line 956 without closing the file descriptor. Add close(fd) calls before both return statements to fix the resource leak. This follows the same pattern used elsewhere in the same function where file descriptors are properly closed before returning (see lines 1005 and 1027). Fixes: 997074df658e ("tools/power/x86/intel-speed-select: Use cgroup v2 isolation") Signed-off-by: Malaya Kumar Rout <mrout@redhat.com> Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Sasha Levin <sashal@kernel.org> 
[ Upstream commit 56c17ee151c6e1a73d77e15b82a8e2130cd8dd16 ]

The file descriptor opened in isolate_cpus() when (!level) is true was
not being closed before returning, causing a file descriptor leak in
both the error path and the success path.

When write() fails at line 950, the function returns at line 953 without
closing the file descriptor. Similarly, on success, the function returns
at line 956 without closing the file descriptor.

Add close(fd) calls before both return statements to fix the resource
leak. This follows the same pattern used elsewhere in the same function
where file descriptors are properly closed before returning (see lines
1005 and 1027).

Fixes: 997074df658e ("tools/power/x86/intel-speed-select: Use cgroup v2 isolation")
Signed-off-by: Malaya Kumar Rout <mrout@redhat.com>
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
tools/power turbostat: Regression fix Uncore MHz printed in hex 2025-12-18T13:02:36+00:00 Len Brown len.brown@intel.com 2025-10-20T21:41:38+00:00 04d808a6efb58f0a2fe040301d7ebe736c259d6b [ Upstream commit 92664f2e6ab2228a3330734fc72dabeaf8a49ee1 ] A patch to allow specifying FORMAT_AVERAGE to added counters... broke the internally added counter for Cluster Uncore MHz -- printing it in HEX. Fixes: dcd1c379b0f1 ("tools/power turbostat: add format "average" for external attributes") Reported-by: Andrej Tkalcec <andrej.tkalcec@intel.com> Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Sasha Levin <sashal@kernel.org> 
[ Upstream commit 92664f2e6ab2228a3330734fc72dabeaf8a49ee1 ]

A patch to allow specifying FORMAT_AVERAGE to added counters...
broke the internally added counter for Cluster Uncore MHz -- printing it in HEX.

Fixes: dcd1c379b0f1 ("tools/power turbostat: add format "average" for external attributes")
Reported-by: Andrej Tkalcec <andrej.tkalcec@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Merge tag 'kbuild-6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux 2025-10-02T03:58:51+00:00 Linus Torvalds torvalds@linux-foundation.org 2025-10-02T03:58:51+00:00 7f7072574127c9e971cad83a0274e86f6275c0d5 Pull Kbuild updates from Nathan Chancellor: - Extend modules.builtin.modinfo to include module aliases from MODULE_DEVICE_TABLE for builtin modules so that userspace tools (such as kmod) can verify that a particular module alias will be handled by a builtin module - Bump the minimum version of LLVM for building the kernel to 15.0.0 - Upgrade several userspace API checks in headers_check.pl to errors - Unify and consolidate CONFIG_WERROR / W=e handling - Turn assembler and linker warnings into errors with CONFIG_WERROR / W=e - Respect CONFIG_WERROR / W=e when building userspace programs (userprogs) - Enable -Werror unconditionally when building host programs (hostprogs) - Support copy_file_range() and data segment alignment in gen_init_cpio to improve performance on filesystems that support reflinks such as btrfs and XFS - Miscellaneous small changes to scripts and configuration files * tag 'kbuild-6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux: (47 commits) modpost: Initialize builtin_modname to stop SIGSEGVs Documentation: kbuild: note CONFIG_DEBUG_EFI in reproducible builds kbuild: vmlinux.unstripped should always depend on .vmlinux.export.o modpost: Create modalias for builtin modules modpost: Add modname to mod_device_table alias scsi: Always define blogic_pci_tbl structure kbuild: extract modules.builtin.modinfo from vmlinux.unstripped kbuild: keep .modinfo section in vmlinux.unstripped kbuild: always create intermediate vmlinux.unstripped s390: vmlinux.lds.S: Reorder sections KMSAN: Remove tautological checks objtool: Drop noinstr hack for KCSAN_WEAK_MEMORY lib/Kconfig.debug: Drop CLANG_VERSION check from DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT riscv: Remove ld.lld version checks from many TOOLCHAIN_HAS configs riscv: Unconditionally use linker relaxation riscv: Remove version check for LTO_CLANG selects powerpc: Drop unnecessary initializations in __copy_inst_from_kernel_nofault() mips: Unconditionally select ARCH_HAS_CURRENT_STACK_POINTER arm64: Remove tautological LLVM Kconfig conditions ARM: Clean up definition of ARM_HAS_GROUP_RELOCS ... 
Pull Kbuild updates from Nathan Chancellor:

 - Extend modules.builtin.modinfo to include module aliases from
   MODULE_DEVICE_TABLE for builtin modules so that userspace tools (such
   as kmod) can verify that a particular module alias will be handled by
   a builtin module

 - Bump the minimum version of LLVM for building the kernel to 15.0.0

 - Upgrade several userspace API checks in headers_check.pl to errors

 - Unify and consolidate CONFIG_WERROR / W=e handling

 - Turn assembler and linker warnings into errors with CONFIG_WERROR /
   W=e

 - Respect CONFIG_WERROR / W=e when building userspace programs
   (userprogs)

 - Enable -Werror unconditionally when building host programs
   (hostprogs)

 - Support copy_file_range() and data segment alignment in gen_init_cpio
   to improve performance on filesystems that support reflinks such as
   btrfs and XFS

 - Miscellaneous small changes to scripts and configuration files

* tag 'kbuild-6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux: (47 commits)
  modpost: Initialize builtin_modname to stop SIGSEGVs
  Documentation: kbuild: note CONFIG_DEBUG_EFI in reproducible builds
  kbuild: vmlinux.unstripped should always depend on .vmlinux.export.o
  modpost: Create modalias for builtin modules
  modpost: Add modname to mod_device_table alias
  scsi: Always define blogic_pci_tbl structure
  kbuild: extract modules.builtin.modinfo from vmlinux.unstripped
  kbuild: keep .modinfo section in vmlinux.unstripped
  kbuild: always create intermediate vmlinux.unstripped
  s390: vmlinux.lds.S: Reorder sections
  KMSAN: Remove tautological checks
  objtool: Drop noinstr hack for KCSAN_WEAK_MEMORY
  lib/Kconfig.debug: Drop CLANG_VERSION check from DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT
  riscv: Remove ld.lld version checks from many TOOLCHAIN_HAS configs
  riscv: Unconditionally use linker relaxation
  riscv: Remove version check for LTO_CLANG selects
  powerpc: Drop unnecessary initializations in __copy_inst_from_kernel_nofault()
  mips: Unconditionally select ARCH_HAS_CURRENT_STACK_POINTER
  arm64: Remove tautological LLVM Kconfig conditions
  ARM: Clean up definition of ARM_HAS_GROUP_RELOCS
  ...
Merge tag 'acpi-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm 2025-10-01T23:24:50+00:00 Linus Torvalds torvalds@linux-foundation.org 2025-10-01T23:24:50+00:00 679a16399af08088a83e1d30e01c31832f055ae7 Pull ACPI updates from Rafael Wysocki: "These include an ACPICA update (upstream revision 20250807 with a few fixes on top), fixes and cleanups of the ACPI processor driver, fixes and cleanups of the ACPI properties management code, one more ACPI IRQ resource management quirk, one more ACPI backlight quirk, an ACPI device enumeration quirk related to _DEP, a power resource quirk related to WWAN modem for HP EliteBook 855 G7, ACPI SPCR table parser extensions, an ACPI APEI EINJ driver update allowing it to handle more address types, and several assorted cleanups of ACPI drivers and PNP code. Specifics: - Add SoundWire File Table (SWFT) signature to ACPICA (Maciej Strozek) - Rearrange local variable definition involving #ifdef in ACPICA to avoid using uninitialized variables (Zhe Qiao) - Allow ACPICA to skip Global Lock initialization (Huacai Chen) - Apply ACPI_NONSTRING in more places in ACPICA and fix two regressions related to incorrect ACPI_NONSTRING usage (Ahmed Salem) - Fix printing CDAT table header when dissasebling CDAT AML (Ahmed Salem) - Use acpi_ds_clear_operands() in acpi_ds_call_control_method() in ACPICA (Hans de Goede) - Update dsmethod.c in ACPICA to address unused variable warning (Saket Dumbre) - Print error messages in ACPICA for too few or too many control method arguments (Saket Dumbre) - Update ACPICA version to 20250807 (Saket Dumbre) - Fix largest possible resource descriptor index in ACPICA (Dmitry Antipov) - Add Back-Invalidate restriction to CXL Window for CEDT in ACPICA (Davidlohr Bueso) - Add the package type to acceptable Arg3 types for _DSM in ACPICA because ACPI_TYPE_ANY does not cover it (Saket Dumbre) - Fix return values in ap_is_valid_checksum() in the acpidump utility in ACPICA (Kaushlendra Kumar) - Add Intel CVS ACPI HIDs to acpi_ignore_dep_ids[] so it is not regarded as real dependency (Hans de Goede) - Use ACPI_FREE() for freeing an ACPI object in description_show() in the ACPI sysfs-related code (Kaushlendra Kumar) - Fix memory leak in the ACPI processor idle driver registration error code path and optimize ACPI idle driver registration (Huisong Li, Rafael Wysocki) - Add module import namespace to the ACPI processor idle driver (Rafael Wysocki) - Eliminate static variable flat_state_cnt from the ACPI processor idle driver (Rafael Wysocki) - Release cpufreq policy references using __free() in the ACPI processor thremal driver (Zihuan Zhang) - Remove unused empty stubs of some functions and rearrange function declarations in a header file in the ACPI processor driver (Huisong Li) - Redefine two functions as void in the ACPI processor driver (Rafael Wysocki) - Stop exposing global variable acpi_idle_driver in the ACPI processor driver (Huisong Li) - Fix ACPI buffer properties extraction for data-only subnodes represented as _DSD-equivalent packages (Rafael Wysocki) - Fix handling of ACPI data-only subnodes represented as _DSD-equivalent packages in the case when they are embedded in larger _DSD-equivalent packages and clean up acpi_nondev_subnode_extract() (Rafael Wysocki) - Skip ACPI IRQ override on ASUS Vivobook Pro N6506CU (Sam van Kampen) - Add power resource init function and use it for introducing an HP EliteBook 855 G7 WWAN modem power resource quirk (Maciej Szmigiero) - Add support for DBG2 RISC-V SBI port subtype and Precise Baud Rate field to the ACPI SPCR table parser (Chen Pei) - Eliminate a dummy local variable from the ACPI thermal driver (Rafael Wysocki) - Fold two simple functions into their only caller in the ACPI fan driver (Rafael Wysocki) - Force native backlight on Lenovo 82K8 in the ACPI backlight (video) driver (Mario Limonciello) - Add missing sysfs_remove_group() for ACPI_TAD_RT (Daniel Tang) - Skip PRM handlers with NULL handler_address or NULL VA in the ACPI PRM driver (Shang song) - Remove redundant assignments in erst_dbg_{ioctl|write}() in the ACPI APEI driver (Thorsten Blum) - Allow the ACPI APEI EINJ to handle more types of addresses than just MMIO (Jiaqi Yan) - Use str_low_high() helper in two places in the ACPI code (Chelsy Ratnawat) - Use str_plural() to simplify the PNP code (Xichao Zhao) - Fix signedness issues in read/write helpers in the ACPI AML debugger interface (Amir Mohammad)" * tag 'acpi-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (50 commits) ACPI: debug: fix signedness issues in read/write helpers ACPI: processor: Do not expose global variable acpi_idle_driver ACPI: SPCR: Support Precise Baud Rate field ACPI: processor: idle: Redefine two functions as void ACPI: processor: Update cpuidle driver check in __acpi_processor_start() ACPI: processor: idle: Rearrange declarations in header file ACPI: processor: Remove unused empty stubs of some functions ACPI: property: Adjust failure handling in acpi_nondev_subnode_extract() ACPI: property: Do not pass NULL handles to acpi_attach_data() ACPI: property: Add code comments explaining what is going on ACPI: property: Disregard references in data-only subnode lists ACPI: property: Fix buffer properties extraction for subnodes ACPI: SPCR: Add support for DBG2 RISC-V SBI port subtype ACPI: APEI: EINJ: Allow more types of addresses except MMIO ACPI: APEI: Remove redundant assignments in erst_dbg_{ioctl|write}() ACPICA: acpidump: fix return values in ap_is_valid_checksum() ACPICA: ACPI_TYPE_ANY does not include the package type ACPICA: CEDT: Add Back-Invalidate restriction to CXL Window ACPICA: Fix largest possible resource descriptor index ACPICA: Update version to 20250807 ... 
Pull ACPI updates from Rafael Wysocki:
 "These include an ACPICA update (upstream revision 20250807 with a few
  fixes on top), fixes and cleanups of the ACPI processor driver, fixes
  and cleanups of the ACPI properties management code, one more ACPI IRQ
  resource management quirk, one more ACPI backlight quirk, an ACPI
  device enumeration quirk related to _DEP, a power resource quirk
  related to WWAN modem for HP EliteBook 855 G7, ACPI SPCR table parser
  extensions, an ACPI APEI EINJ driver update allowing it to handle more
  address types, and several assorted cleanups of ACPI drivers and PNP
  code.

  Specifics:

   - Add SoundWire File Table (SWFT) signature to ACPICA (Maciej
     Strozek)

   - Rearrange local variable definition involving #ifdef in ACPICA to
     avoid using uninitialized variables (Zhe Qiao)

   - Allow ACPICA to skip Global Lock initialization (Huacai Chen)

   - Apply ACPI_NONSTRING in more places in ACPICA and fix two
     regressions related to incorrect ACPI_NONSTRING usage (Ahmed Salem)

   - Fix printing CDAT table header when dissasebling CDAT AML (Ahmed
     Salem)

   - Use acpi_ds_clear_operands() in acpi_ds_call_control_method() in
     ACPICA (Hans de Goede)

   - Update dsmethod.c in ACPICA to address unused variable warning
     (Saket Dumbre)

   - Print error messages in ACPICA for too few or too many control
     method arguments (Saket Dumbre)

   - Update ACPICA version to 20250807 (Saket Dumbre)

   - Fix largest possible resource descriptor index in ACPICA (Dmitry
     Antipov)

   - Add Back-Invalidate restriction to CXL Window for CEDT in ACPICA
     (Davidlohr Bueso)

   - Add the package type to acceptable Arg3 types for _DSM in ACPICA
     because ACPI_TYPE_ANY does not cover it (Saket Dumbre)

   - Fix return values in ap_is_valid_checksum() in the acpidump utility
     in ACPICA (Kaushlendra Kumar)

   - Add Intel CVS ACPI HIDs to acpi_ignore_dep_ids[] so it is not
     regarded as real dependency (Hans de Goede)

   - Use ACPI_FREE() for freeing an ACPI object in description_show() in
     the ACPI sysfs-related code (Kaushlendra Kumar)

   - Fix memory leak in the ACPI processor idle driver registration
     error code path and optimize ACPI idle driver registration (Huisong
     Li, Rafael Wysocki)

   - Add module import namespace to the ACPI processor idle driver
     (Rafael Wysocki)

   - Eliminate static variable flat_state_cnt from the ACPI processor
     idle driver (Rafael Wysocki)

   - Release cpufreq policy references using __free() in the ACPI
     processor thremal driver (Zihuan Zhang)

   - Remove unused empty stubs of some functions and rearrange function
     declarations in a header file in the ACPI processor driver (Huisong
     Li)

   - Redefine two functions as void in the ACPI processor driver (Rafael
     Wysocki)

   - Stop exposing global variable acpi_idle_driver in the ACPI
     processor driver (Huisong Li)

   - Fix ACPI buffer properties extraction for data-only subnodes
     represented as _DSD-equivalent packages (Rafael Wysocki)

   - Fix handling of ACPI data-only subnodes represented as
     _DSD-equivalent packages in the case when they are embedded in
     larger _DSD-equivalent packages and clean up
     acpi_nondev_subnode_extract() (Rafael Wysocki)

   - Skip ACPI IRQ override on ASUS Vivobook Pro N6506CU (Sam van
     Kampen)

   - Add power resource init function and use it for introducing an HP
     EliteBook 855 G7 WWAN modem power resource quirk (Maciej Szmigiero)

   - Add support for DBG2 RISC-V SBI port subtype and Precise Baud Rate
     field to the ACPI SPCR table parser (Chen Pei)

   - Eliminate a dummy local variable from the ACPI thermal driver
     (Rafael Wysocki)

   - Fold two simple functions into their only caller in the ACPI fan
     driver (Rafael Wysocki)

   - Force native backlight on Lenovo 82K8 in the ACPI backlight (video)
     driver (Mario Limonciello)

   - Add missing sysfs_remove_group() for ACPI_TAD_RT (Daniel Tang)

   - Skip PRM handlers with NULL handler_address or NULL VA in the ACPI
     PRM driver (Shang song)

   - Remove redundant assignments in erst_dbg_{ioctl|write}() in the
     ACPI APEI driver (Thorsten Blum)

   - Allow the ACPI APEI EINJ to handle more types of addresses than
     just MMIO (Jiaqi Yan)

   - Use str_low_high() helper in two places in the ACPI code (Chelsy
     Ratnawat)

   - Use str_plural() to simplify the PNP code (Xichao Zhao)

   - Fix signedness issues in read/write helpers in the ACPI AML
     debugger interface (Amir Mohammad)"

* tag 'acpi-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (50 commits)
  ACPI: debug: fix signedness issues in read/write helpers
  ACPI: processor: Do not expose global variable acpi_idle_driver
  ACPI: SPCR: Support Precise Baud Rate field
  ACPI: processor: idle: Redefine two functions as void
  ACPI: processor: Update cpuidle driver check in __acpi_processor_start()
  ACPI: processor: idle: Rearrange declarations in header file
  ACPI: processor: Remove unused empty stubs of some functions
  ACPI: property: Adjust failure handling in acpi_nondev_subnode_extract()
  ACPI: property: Do not pass NULL handles to acpi_attach_data()
  ACPI: property: Add code comments explaining what is going on
  ACPI: property: Disregard references in data-only subnode lists
  ACPI: property: Fix buffer properties extraction for subnodes
  ACPI: SPCR: Add support for DBG2 RISC-V SBI port subtype
  ACPI: APEI: EINJ: Allow more types of addresses except MMIO
  ACPI: APEI: Remove redundant assignments in erst_dbg_{ioctl|write}()
  ACPICA: acpidump: fix return values in ap_is_valid_checksum()
  ACPICA: ACPI_TYPE_ANY does not include the package type
  ACPICA: CEDT: Add Back-Invalidate restriction to CXL Window
  ACPICA: Fix largest possible resource descriptor index
  ACPICA: Update version to 20250807
  ...
Merge tag 'pm-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm 2025-10-01T23:08:37+00:00 Linus Torvalds torvalds@linux-foundation.org 2025-10-01T23:08:37+00:00 991053178e08fb4d1f80398367db05c2cc4f20b4 Pull power management updates from Rafael Wysocki: "The majority of these are cpufreq changes, which has been a recurring pattern for a few recent cycles. Those changes include new hardware support (AN7583 SoC support in the airoha cpufreq driver, ipq5424 support in the qcom-nvmem cpufreq driver, MT8196 support in the mediatek cpufreq driver, AM62D2 support in the ti cpufreq driver), DT bindings and Rust code updates, cleanups of the core and governors, and multiple driver fixes and cleanups. Beyond that, there are hibernation fixes (some remaining 6.16 cycle fallout and an issue related to hybrid suspend in the amdgpu driver), cleanups of the PM core code, runtime PM documentation update, cpuidle and power capping cleanups, and tooling updates. Specifics: - Rearrange variable declarations involving __free() in the cpufreq core and intel_pstate driver to follow common coding style (Rafael Wysocki) - Fix object lifecycle issue in update_qos_request(), rearrange freq QoS updates using __free(), and adjust frequency percentage computations in the intel_pstate driver (Rafael Wysocki) - Update intel_pstate to allow it to enable HWP without EPP if the new DEC (Dynamic Efficiency Control) HW feature is enabled (Rafael Wysocki) - Use on_each_cpu_mask() in drv_write() in the ACPI cpufreq driver to simplify the code (Rafael Wysocki) - Use likely() optimization in intel_pstate_sample() (Yaxiong Tian) - Remove dead EPB-related code from intel_pstate (Srinivas Pandruvada) - Use scope-based cleanup for cpufreq policy references in multiple cpufreq drivers (Zihuan Zhang) - Avoid calling get_governor() for the first policy in the cpufreq core to simplify the initial policy path (Zihuan Zhang) - Clean up the cpufreq core in multiple places (Zihuan Zhang) - Use int type to store negative error codes in the cpufreq core and update the speedstep-lib to use int for error codes (Qianfeng Rong) - Update the efficient idle check for Intel extended Families in the ondemand cpufreq governor (Sohil Mehta) - Replace sscanf() with kstrtouint() in the conservative cpufreq governor (Kaushlendra Kumar) - Rename CpumaskVar::as[_mut]_ref to from_raw[_mut] in the cpumask Rust code and mark CpumaskVar as transparent (Alice Ryhl, Baptiste Lepers) - Update ARef and AlwaysRefCounted imports from sync::aref in the OPP Rust code (Shankari Anand) - Add support for AN7583 SoC to the airoha cpufreq driver (Christian Marangi) - Enable cpufreq for ipq5424 in the qcom-nvmem cpufreq driver (Md Sadre Alam) - Add support for MT8196 to the mediatek-hw cpufreq driver, refactor that driver and add mediatek,mt8196-cpufreq-hw DT binding (Nicolas Frattaroli) - Avoid redundant conditions in the mediatek cpufreq driver (Liao Yuanhong) - Add support for AM62D2 to the ti cpufreq driver and blocklist ti,am62d2 SoC in dt-platdev (Paresh Bhagat) - Support more speed grades on AM62Px SoC in the ti cpufreq driver, allow all silicon revisions to support OPPs in it, and fix supported hardware for 1GHz OPP (Judith Mendez) - Add QCS615 compatible to DT bindings for cpufreq-qcom-hw (Taniya Das) - Minor assorted updates of the scmi, longhaul, CPPC, and armada-37xx cpufreq drivers (Akhilesh Patil, BowenYu, Dennis Beier, and Florian Fainelli) - Remove outdated cpufreq-dt.txt (Frank Li) - Fix python gnuplot package names in the amd_pstate_tracer utility (Kuan-Wei Chiu) - Saravana Kannan will maintain the virtual-cpufreq driver (Saravana Kannan) - Prevent CPU capacity updates after registering a perf domain from failing on a first CPU that is not present (Christian Loehle) - Add support for the cases in which frequency alone is not sufficient to uniquely identify an OPP (Krishna Chaitanya Chundru) - Use to_result() for OPP error handling in Rust (Onur Özkan) - Add support for LPDDR5 on Rockhip RK3588 SoC to rockchip-dfi devfreq driver (Nicolas Frattaroli) - Fix an issue where DDR cycle counts on RK3588/RK3528 with LPDDR4(X) are reported as half by adding a cycle multiplier to the DFI driver in rockchip-dfi devfreq-event driver (Nicolas Frattaroli) - Fix missing error pointer dereference check of regulator instance in the mtk-cci devfreq driver probe and remove a redundant condition from an if () statement in that driver (Dan Carpenter, Liao Yuanhong) - Fail cpuidle device registration if there is one already to avoid sysfs-related issues (Rafael Wysocki) - Use sysfs_emit()/sysfs_emit_at() instead of sprintf()/scnprintf() in cpuidle (Vivek Yadav) - Fix device and OF node leaks at probe in the qcom-spm cpuidle driver and drop unnecessary initialisations from it (Johan Hovold) - Remove unnecessary address-of operators from the intel_idle cpuidle driver (Kaushlendra Kumar) - Rearrange main loop in menu_select() to make the code in that funtion easier to follow (Rafael Wysocki) - Convert values in microseconds to ktime using us_to_ktime() where applicable in the intel_idle power capping driver (Xichao Zhao) - Annotate loops walking device links in the power management core code as _srcu and add macros for walking device links to reduce the likelihood of coding mistakes related to them (Rafael Wysocki) - Document time units for *_time functions in the runtime PM API (Brian Norris) - Clear power.must_resume in noirq suspend error path to avoid resuming a dependant device under a suspended parent or supplier (Rafael Wysocki) - Fix GFP mask handling during hybrid suspend and make the amdgpu driver handle hybrid suspend correctly (Mario Limonciello, Rafael Wysocki) - Fix GFP mask handling after aborted hibernation in platform mode and combine exit paths in power_down() to avoid code duplication (Rafael Wysocki) - Use vmalloc_array() and vcalloc() in the hibernation core to avoid open-coded size computations (Qianfeng Rong) - Fix typo in hibernation core code comment (Li Jun) - Call pm_wakeup_clear() in the same place where other functions that do bookkeeping prior to suspend_prepare() are called (Samuel Wu) - Fix and clean up the x86_energy_perf_policy utility and update its documentation (Len Brown, Kaushlendra Kumar) - Fix incorrect sorting of PMT telemetry in turbostat (Kaushlendra Kumar) - Fix incorrect size in cpuidle_state_disable() and the error return value of cpupower_write_sysfs() in cpupower (Kaushlendra Kumar)" * tag 'pm-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (86 commits) PM: hibernate: Combine return paths in power_down() PM: hibernate: Restrict GFP mask in power_down() PM: hibernate: Fix pm_hibernation_mode_is_suspend() build breakage PM: runtime: Documentation: ABI: Document time units for *_time tools/power x86_energy_perf_policy.8: Emphasize preference for SW interfaces tools/power x86_energy_perf_policy: Add make snapshot target tools/power x86_energy_perf_policy: Prefer driver HWP limits tools/power x86_energy_perf_policy: EPB access is only via sysfs tools/power x86_energy_perf_policy: Prepare for MSR/sysfs refactoring tools/power x86_energy_perf_policy: Enhance HWP enable tools/power x86_energy_perf_policy: Enhance HWP enabled check tools/power x86_energy_perf_policy: Fix incorrect fopen mode usage tools/power turbostat: Fix incorrect sorting of PMT telemetry drm/amd: Fix hybrid sleep PM: hibernate: Add pm_hibernation_mode_is_suspend() PM: hibernate: Fix hybrid-sleep tools/cpupower: Fix incorrect size in cpuidle_state_disable() tools/power/x86/amd_pstate_tracer: Fix python gnuplot package names cpufreq: Replace pointer subtraction with iteration macro cpuidle: Fail cpuidle device registration if there is one already ... 
Pull power management updates from Rafael Wysocki:
 "The majority of these are cpufreq changes, which has been a recurring
  pattern for a few recent cycles.

  Those changes include new hardware support (AN7583 SoC support in the
  airoha cpufreq driver, ipq5424 support in the qcom-nvmem cpufreq
  driver, MT8196 support in the mediatek cpufreq driver, AM62D2 support
  in the ti cpufreq driver), DT bindings and Rust code updates, cleanups
  of the core and governors, and multiple driver fixes and cleanups.

  Beyond that, there are hibernation fixes (some remaining 6.16 cycle
  fallout and an issue related to hybrid suspend in the amdgpu driver),
  cleanups of the PM core code, runtime PM documentation update, cpuidle
  and power capping cleanups, and tooling updates.

  Specifics:

   - Rearrange variable declarations involving __free() in the cpufreq
     core and intel_pstate driver to follow common coding style (Rafael
     Wysocki)

   - Fix object lifecycle issue in update_qos_request(), rearrange freq
     QoS updates using __free(), and adjust frequency percentage
     computations in the intel_pstate driver (Rafael Wysocki)

   - Update intel_pstate to allow it to enable HWP without EPP if the
     new DEC (Dynamic Efficiency Control) HW feature is enabled (Rafael
     Wysocki)

   - Use on_each_cpu_mask() in drv_write() in the ACPI cpufreq driver to
     simplify the code (Rafael Wysocki)

   - Use likely() optimization in intel_pstate_sample() (Yaxiong Tian)

   - Remove dead EPB-related code from intel_pstate (Srinivas
     Pandruvada)

   - Use scope-based cleanup for cpufreq policy references in multiple
     cpufreq drivers (Zihuan Zhang)

   - Avoid calling get_governor() for the first policy in the cpufreq
     core to simplify the initial policy path (Zihuan Zhang)

   - Clean up the cpufreq core in multiple places (Zihuan Zhang)

   - Use int type to store negative error codes in the cpufreq core and
     update the speedstep-lib to use int for error codes (Qianfeng Rong)

   - Update the efficient idle check for Intel extended Families in the
     ondemand cpufreq governor (Sohil Mehta)

   - Replace sscanf() with kstrtouint() in the conservative cpufreq
     governor (Kaushlendra Kumar)

   - Rename CpumaskVar::as[_mut]_ref to from_raw[_mut] in the cpumask
     Rust code and mark CpumaskVar as transparent (Alice Ryhl, Baptiste
     Lepers)

   - Update ARef and AlwaysRefCounted imports from sync::aref in the OPP
     Rust code (Shankari Anand)

   - Add support for AN7583 SoC to the airoha cpufreq driver (Christian
     Marangi)

   - Enable cpufreq for ipq5424 in the qcom-nvmem cpufreq driver (Md
     Sadre Alam)

   - Add support for MT8196 to the mediatek-hw cpufreq driver, refactor
     that driver and add mediatek,mt8196-cpufreq-hw DT binding (Nicolas
     Frattaroli)

   - Avoid redundant conditions in the mediatek cpufreq driver (Liao
     Yuanhong)

   - Add support for AM62D2 to the ti cpufreq driver and blocklist
     ti,am62d2 SoC in dt-platdev (Paresh Bhagat)

   - Support more speed grades on AM62Px SoC in the ti cpufreq driver,
     allow all silicon revisions to support OPPs in it, and fix
     supported hardware for 1GHz OPP (Judith Mendez)

   - Add QCS615 compatible to DT bindings for cpufreq-qcom-hw (Taniya
     Das)

   - Minor assorted updates of the scmi, longhaul, CPPC, and armada-37xx
     cpufreq drivers (Akhilesh Patil, BowenYu, Dennis Beier, and Florian
     Fainelli)

   - Remove outdated cpufreq-dt.txt (Frank Li)

   - Fix python gnuplot package names in the amd_pstate_tracer utility
     (Kuan-Wei Chiu)

   - Saravana Kannan will maintain the virtual-cpufreq driver (Saravana
     Kannan)

   - Prevent CPU capacity updates after registering a perf domain from
     failing on a first CPU that is not present (Christian Loehle)

   - Add support for the cases in which frequency alone is not
     sufficient to uniquely identify an OPP (Krishna Chaitanya Chundru)

   - Use to_result() for OPP error handling in Rust (Onur Özkan)

   - Add support for LPDDR5 on Rockhip RK3588 SoC to rockchip-dfi
     devfreq driver (Nicolas Frattaroli)

   - Fix an issue where DDR cycle counts on RK3588/RK3528 with LPDDR4(X)
     are reported as half by adding a cycle multiplier to the DFI driver
     in rockchip-dfi devfreq-event driver (Nicolas Frattaroli)

   - Fix missing error pointer dereference check of regulator instance
     in the mtk-cci devfreq driver probe and remove a redundant
     condition from an if () statement in that driver (Dan Carpenter,
     Liao Yuanhong)

   - Fail cpuidle device registration if there is one already to avoid
     sysfs-related issues (Rafael Wysocki)

   - Use sysfs_emit()/sysfs_emit_at() instead of sprintf()/scnprintf()
     in cpuidle (Vivek Yadav)

   - Fix device and OF node leaks at probe in the qcom-spm cpuidle
     driver and drop unnecessary initialisations from it (Johan Hovold)

   - Remove unnecessary address-of operators from the intel_idle cpuidle
     driver (Kaushlendra Kumar)

   - Rearrange main loop in menu_select() to make the code in that
     funtion easier to follow (Rafael Wysocki)

   - Convert values in microseconds to ktime using us_to_ktime() where
     applicable in the intel_idle power capping driver (Xichao Zhao)

   - Annotate loops walking device links in the power management core
     code as _srcu and add macros for walking device links to reduce the
     likelihood of coding mistakes related to them (Rafael Wysocki)

   - Document time units for *_time functions in the runtime PM API
     (Brian Norris)

   - Clear power.must_resume in noirq suspend error path to avoid
     resuming a dependant device under a suspended parent or supplier
     (Rafael Wysocki)

   - Fix GFP mask handling during hybrid suspend and make the amdgpu
     driver handle hybrid suspend correctly (Mario Limonciello, Rafael
     Wysocki)

   - Fix GFP mask handling after aborted hibernation in platform mode
     and combine exit paths in power_down() to avoid code duplication
     (Rafael Wysocki)

   - Use vmalloc_array() and vcalloc() in the hibernation core to avoid
     open-coded size computations (Qianfeng Rong)

   - Fix typo in hibernation core code comment (Li Jun)

   - Call pm_wakeup_clear() in the same place where other functions that
     do bookkeeping prior to suspend_prepare() are called (Samuel Wu)

   - Fix and clean up the x86_energy_perf_policy utility and update its
     documentation (Len Brown, Kaushlendra Kumar)

   - Fix incorrect sorting of PMT telemetry in turbostat (Kaushlendra
     Kumar)

   - Fix incorrect size in cpuidle_state_disable() and the error return
     value of cpupower_write_sysfs() in cpupower (Kaushlendra Kumar)"

* tag 'pm-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (86 commits)
  PM: hibernate: Combine return paths in power_down()
  PM: hibernate: Restrict GFP mask in power_down()
  PM: hibernate: Fix pm_hibernation_mode_is_suspend() build breakage
  PM: runtime: Documentation: ABI: Document time units for *_time
  tools/power x86_energy_perf_policy.8: Emphasize preference for SW interfaces
  tools/power x86_energy_perf_policy: Add make snapshot target
  tools/power x86_energy_perf_policy: Prefer driver HWP limits
  tools/power x86_energy_perf_policy: EPB access is only via sysfs
  tools/power x86_energy_perf_policy: Prepare for MSR/sysfs refactoring
  tools/power x86_energy_perf_policy: Enhance HWP enable
  tools/power x86_energy_perf_policy: Enhance HWP enabled check
  tools/power x86_energy_perf_policy: Fix incorrect fopen mode usage
  tools/power turbostat: Fix incorrect sorting of PMT telemetry
  drm/amd: Fix hybrid sleep
  PM: hibernate: Add pm_hibernation_mode_is_suspend()
  PM: hibernate: Fix hybrid-sleep
  tools/cpupower: Fix incorrect size in cpuidle_state_disable()
  tools/power/x86/amd_pstate_tracer: Fix python gnuplot package names
  cpufreq: Replace pointer subtraction with iteration macro
  cpuidle: Fail cpuidle device registration if there is one already
  ...
Merge branch 'pm-tools' 2025-09-29T11:10:10+00:00 Rafael J. Wysocki rafael.j.wysocki@intel.com 2025-09-29T11:10:10+00:00 40d2cf9c3c1a5a1a9a443389d6b57a87362e4237 Merge power management utilities updates for 6.18-rc1: - Fix and clean up the x86_energy_perf_policy utility and update its documentation (Len Brown, Kaushlendra Kumar) - Fix incorrect sorting of PMT telemetry in turbostat (Kaushlendra Kumar) - Fix incorrect size in cpuidle_state_disable() and the error return value of cpupower_write_sysfs() in cpupower (Kaushlendra Kumar) * pm-tools: tools/power x86_energy_perf_policy.8: Emphasize preference for SW interfaces tools/power x86_energy_perf_policy: Add make snapshot target tools/power x86_energy_perf_policy: Prefer driver HWP limits tools/power x86_energy_perf_policy: EPB access is only via sysfs tools/power x86_energy_perf_policy: Prepare for MSR/sysfs refactoring tools/power x86_energy_perf_policy: Enhance HWP enable tools/power x86_energy_perf_policy: Enhance HWP enabled check tools/power x86_energy_perf_policy: Fix incorrect fopen mode usage tools/power turbostat: Fix incorrect sorting of PMT telemetry tools/cpupower: Fix incorrect size in cpuidle_state_disable() tools/cpupower: fix error return value in cpupower_write_sysfs() 
Merge power management utilities updates for 6.18-rc1:

 - Fix and clean up the x86_energy_perf_policy utility and update its
   documentation (Len Brown, Kaushlendra Kumar)

 - Fix incorrect sorting of PMT telemetry in turbostat (Kaushlendra
   Kumar)

 - Fix incorrect size in cpuidle_state_disable() and the error return
   value of cpupower_write_sysfs() in cpupower (Kaushlendra Kumar)

* pm-tools:
  tools/power x86_energy_perf_policy.8: Emphasize preference for SW interfaces
  tools/power x86_energy_perf_policy: Add make snapshot target
  tools/power x86_energy_perf_policy: Prefer driver HWP limits
  tools/power x86_energy_perf_policy: EPB access is only via sysfs
  tools/power x86_energy_perf_policy: Prepare for MSR/sysfs refactoring
  tools/power x86_energy_perf_policy: Enhance HWP enable
  tools/power x86_energy_perf_policy: Enhance HWP enabled check
  tools/power x86_energy_perf_policy: Fix incorrect fopen mode usage
  tools/power turbostat: Fix incorrect sorting of PMT telemetry
  tools/cpupower: Fix incorrect size in cpuidle_state_disable()
  tools/cpupower: fix error return value in cpupower_write_sysfs()
Merge tag 'linux-cpupower-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux 2025-09-29T08:10:05+00:00 Rafael J. Wysocki rafael.j.wysocki@intel.com 2025-09-29T08:10:05+00:00 17eb8812917b10ce4146b5595f91d8e45bfe68cc Merge cpupower utility updates for 6.18-rc1 from Shuah Khan: "Fixes incorrect return vale in cpupower_write_sysfs() error path and passing incorrect size to cpuidle_state_write_file() while writing status to disable file in cpuidle_state_disable()." * tag 'linux-cpupower-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux: (1125 commits) tools/cpupower: Fix incorrect size in cpuidle_state_disable() tools/cpupower: fix error return value in cpupower_write_sysfs() Linux 6.17-rc6 MAINTAINERS: Input: Drop melfas-mip4 section USB: core: remove the move buf action MAINTAINERS: Update the DMA Rust entry erofs: fix long xattr name prefix placement Revert "net: usb: asix: ax88772: drop phylink use in PM to avoid MDIO runtime PM wakeups" hsr: hold rcu and dev lock for hsr_get_port_ndev hsr: use hsr_for_each_port_rtnl in hsr_port_get_hsr hsr: use rtnl lock when iterating over ports wifi: nl80211: completely disable per-link stats for now net: usb: asix: ax88772: drop phylink use in PM to avoid MDIO runtime PM wakeups net: ethtool: fix wrong type used in struct kernel_ethtool_ts_info selftests/bpf: Skip timer cases when bpf_timer is not supported bpf: Reject bpf_timer for PREEMPT_RT libceph: fix invalid accesses to ceph_connection_v1_info PM: hibernate: Restrict GFP mask in hibernation_snapshot() MAINTAINERS: add Phil as netfilter reviewer netfilter: nf_tables: restart set lookup on base_seq change ... 
Merge cpupower utility updates for 6.18-rc1 from Shuah Khan:

"Fixes incorrect return vale in cpupower_write_sysfs() error path
 and passing incorrect size to cpuidle_state_write_file() while
 writing status to disable file in cpuidle_state_disable()."

* tag 'linux-cpupower-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux: (1125 commits)
  tools/cpupower: Fix incorrect size in cpuidle_state_disable()
  tools/cpupower: fix error return value in cpupower_write_sysfs()
  Linux 6.17-rc6
  MAINTAINERS: Input: Drop melfas-mip4 section
  USB: core: remove the move buf action
  MAINTAINERS: Update the DMA Rust entry
  erofs: fix long xattr name prefix placement
  Revert "net: usb: asix: ax88772: drop phylink use in PM to avoid MDIO runtime PM wakeups"
  hsr: hold rcu and dev lock for hsr_get_port_ndev
  hsr: use hsr_for_each_port_rtnl in hsr_port_get_hsr
  hsr: use rtnl lock when iterating over ports
  wifi: nl80211: completely disable per-link stats for now
  net: usb: asix: ax88772: drop phylink use in PM to avoid MDIO runtime PM wakeups
  net: ethtool: fix wrong type used in struct kernel_ethtool_ts_info
  selftests/bpf: Skip timer cases when bpf_timer is not supported
  bpf: Reject bpf_timer for PREEMPT_RT
  libceph: fix invalid accesses to ceph_connection_v1_info
  PM: hibernate: Restrict GFP mask in hibernation_snapshot()
  MAINTAINERS: add Phil as netfilter reviewer
  netfilter: nf_tables: restart set lookup on base_seq change
  ...
Merge tag 'power-utilities-for-v6.18-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux 2025-09-26T13:02:37+00:00 Rafael J. Wysocki rafael.j.wysocki@intel.com 2025-09-26T13:02:37+00:00 57610d69f909ea2ea072775c6ad64ba9fad590bb Merge turbostat and x86_energy_perf_policy bug fixes for v6.18 merge window from Len Brown. * tag 'power-utilities-for-v6.18-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: tools/power x86_energy_perf_policy.8: Emphasize preference for SW interfaces tools/power x86_energy_perf_policy: Add make snapshot target tools/power x86_energy_perf_policy: Prefer driver HWP limits tools/power x86_energy_perf_policy: EPB access is only via sysfs tools/power x86_energy_perf_policy: Prepare for MSR/sysfs refactoring tools/power x86_energy_perf_policy: Enhance HWP enable tools/power x86_energy_perf_policy: Enhance HWP enabled check tools/power x86_energy_perf_policy: Fix incorrect fopen mode usage tools/power turbostat: Fix incorrect sorting of PMT telemetry 
Merge turbostat and x86_energy_perf_policy bug fixes for v6.18 merge
window from Len Brown.

* tag 'power-utilities-for-v6.18-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux:
  tools/power x86_energy_perf_policy.8: Emphasize preference for SW interfaces
  tools/power x86_energy_perf_policy: Add make snapshot target
  tools/power x86_energy_perf_policy: Prefer driver HWP limits
  tools/power x86_energy_perf_policy: EPB access is only via sysfs
  tools/power x86_energy_perf_policy: Prepare for MSR/sysfs refactoring
  tools/power x86_energy_perf_policy: Enhance HWP enable
  tools/power x86_energy_perf_policy: Enhance HWP enabled check
  tools/power x86_energy_perf_policy: Fix incorrect fopen mode usage
  tools/power turbostat: Fix incorrect sorting of PMT telemetry