kernel/linux.git/tools/power, branch v6.19.11

tools/power cpupower: Reset errno before strtoull()

2026-03-04T12:19:36+00:00

[ 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 Signed-off-by: Shuah Khan Signed-off-by: Sasha Levin

tools/cpupower: Fix inverted APERF capability check

2026-03-04T12:19:35+00:00

[ 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 Signed-off-by: Shuah Khan Signed-off-by: Sasha Levin

tools/power turbostat: Harden against unexpected values

2026-02-26T23:01:28+00:00

[ Upstream commit d0f7093ad5e4aa37405da2669bca1a62d22b7025 ] Divide-by-zero resulted if LLC references == 0 Pull the percentage division into pct() to centralize sanity checks there. Fixes: 8808292799b0 ("tools/power turbostat: Print "nan" for out of range percentages") Signed-off-by: Len Brown Signed-off-by: Sasha Levin

tools/power turbostat: AMD: msr offset 0x611 read failed: Input/output error

2026-02-26T23:01:28+00:00

[ Upstream commit 16cc8f249c702b7cbb4c2c2be7cd8f4fdd5d1d0c ] Turbostat exits during RAPL probe with: turbostat: cpu0: msr offset 0x611 read failed: Input/output error A binary with this bug can be used successfully with the option "--no-msr" Fix this regression by trusting the static AMD RAPL MSR offset. Fixes: 19476a592bf2 ("tools/power turbostat: Validate RAPL MSRs for AWS Nitro Hypervisor") Signed-off-by: Len Brown Signed-off-by: Sasha Levin

tools/power/x86/intel-speed-select: Fix file descriptor leak in isolate_cpus()

2026-02-26T23:01:16+00:00

[ 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 Signed-off-by: Srinivas Pandruvada Signed-off-by: Sasha Levin

Merge tag 'platform-drivers-x86-v6.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86

2025-12-09T21:38:17+00:00

Pull x86 platform driver updates from Ilpo Järvinen: - acer-wmi: Add PH16-72, PHN16-72, and PT14-51 fan control support - acpi: platform_profile: Add max-power profile option (power draw limited by the cooling hardware, may exceed battery power draw limit when on AC power) - amd/hsmp: Allow more than one data-fabric per socket - asus-armoury: Add WMI attributes driver to expose miscellaneous WMI functions through fw_attributes (deprecates the custom BIOS features interface through asus-wmi) - asus-wmi: Use brightness_set_blocking() for kbd led - ayaneo-ec: Add Ayaneo Embedded Controller driver - fs/nls: - Fix utf16 to utf8 string conversion when output size restricted - Improve error code consistency for utf8 to utf32 conversions - ideapad-laptop: Fast (Rapid Charge) charge type support - intel/hid: Add Dell Pro Rugged 10/12 tablet to VGBS DMI quirks - intel/pmc: - Arrow Lake telemetry GUID improvements - Add support for Wildcat Lake PMC information - intel_pmc_ipc: Fix ACPI buffer memleak - intel/punit_ipc: Fix memory corruption - intel/vsec: Wildcat Lake PMT telemetry support - lenovo-wmi-gamezone: Map "Extreme" performance mode to max-power - lg-laptop: Add support for the HDAP opregion field - serial-multi-instantiate: Add IRQ_RESOURCE_OPT for IRQ missing projects - thinkpad-t14s-ec: Improve suspend/resume support (lid LEDs, keyboard backlight) - uniwill: Add Uniwill laptop driver - wmi: Move under drivers/platform/wmi as non-x86 WMI support is around the corner and other WMI features will require adding more C files as well - tools/power/x86/intel-speed-select: v1.24 - Check feature status to check if the feature enablement was successful - Reset SST-TF bucket structure to display valid bucket info - Miscellaneous cleanups / refactoring / improvements * tag 'platform-drivers-x86-v6.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (73 commits) tools/power/x86/intel-speed-select: v1.24 release tools/power/x86/intel-speed-select: Reset isst_turbo_freq_info for invalid buckets tools/power/x86/intel-speed-select: Check feature status platform/x86: asus-wmi: use brightness_set_blocking() for kbd led fs/nls: Fix inconsistency between utf8_to_utf32() and utf32_to_utf8() platform/x86: asus-armoury: add support for GA503QR platform/x86: intel_pmc_ipc: fix ACPI buffer memory leak platform/x86: hp-wmi: Order DMI board name arrays platform/x86/intel/hid: Add Dell Pro Rugged 10/12 tablet to VGBS DMI quirks platform: surface: replace use of system_wq with system_percpu_wq platform: x86: replace use of system_wq with system_percpu_wq platform/surface: acpi-notify: add WQ_PERCPU to alloc_workqueue users platform/x86: wmi-gamezone: Add Legion Go 2 Quirks platform/x86: lenovo-wmi-gamezone Use max-power rather than balanced-performance acpi: platform_profile - Add max-power profile option platform/x86/amd/pmf: Use devm_mutex_init() for mutex initialization platform/x86/amd/pmf: Add BIOS_INPUTS_MAX macro to replace hardcoded array size platform/x86: serial-multi-instantiate: Add IRQ_RESOURCE_OPT for IRQ missing projects platform/x86/amd/pmf: Refactor repetitive BIOS output handling platform/x86/uniwill: Add TUXEDO devices ...

Merge tag 'turbostat-v2025.12.02' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux

2025-12-06T17:35:00+00:00

Pull turbostat updates from Len Brown: - Add LLC statistics columns: LLCkRPS = Last Level Cache Thousands of References Per Second LLC%hit = Last Level Cache Hit % - Recognize Wildcat Lake and Nova Lake platforms - Add MSR check for Android - Add APERF check for VMWARE - Add RAPL check for AWS - Minor fixes to turbostat (and x86_energy_perf_policy) * tag 'turbostat-v2025.12.02' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: (21 commits) tools/power turbostat: version 2025.12.02 tools/power turbostat: Print wide names only for RAW 64-bit columns tools/power turbostat: Print percentages in 8-columns tools/power turbostat: Print "nan" for out of range percentages tools/power turbostat: Validate APERF access for VMWARE tools/power turbostat: Enhance perf probe tools/power turbostat: Validate RAPL MSRs for AWS Nitro Hypervisor tools/power x86_energy_perf_policy: Fix potential NULL pointer dereference tools/power x86_energy_perf_policy: Fix format string in error message tools/power x86_energy_perf_policy: Simplify Android MSR probe tools/power x86_energy_perf_policy: Add Android MSR device support tools/power turbostat: Add run-time MSR driver probe tools/power turbostat: Set per_cpu_msr_sum to NULL after free tools/power turbostat: Add LLC stats tools/power turbostat: Remove dead code tools/power turbostat: Refactor floating point printout code tools/power turbostat.8: Update example tools/power turbostat: Refactor added-counter value printing code tools/power turbostat: Refactor added column header printing tools/power turbostat: Add Wildcat Lake and Nova Lake support ...

tools/power/x86/intel-speed-select: v1.24 release

2025-12-03T16:29:13+00:00

This version includes the following changes: - Check feature status to check if the feature enablement was successful - Reset SST-TF bucket structure to display valid bucket info Signed-off-by: Srinivas Pandruvada

tools/power/x86/intel-speed-select: Reset isst_turbo_freq_info for invalid buckets

2025-12-03T16:29:13+00:00

With SST-TF version 2 only 3 buckets are present. The information in others buckets can be junk. So initialize the info structure of type isst_turbo_freq_info, before issing ioctl to get bucket information. Signed-off-by: Srinivas Pandruvada

tools/power/x86/intel-speed-select: Check feature status

2025-12-03T16:29:13+00:00

After change of enable/disable status of SST-CP, SST-TF and SST-BF check if the hardware status change was successful. If not successful even after retries, return failure. Signed-off-by: Srinivas Pandruvada