summaryrefslogtreecommitdiff
path: root/tools/power
AgeCommit message (Collapse)Author
13 hoursMerge branch 'next' of ↵Mark Brown
https://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux.git
2026-08-05Merge tag 'linux-cpupower-7.3-rc1' of ↵Rafael J. Wysocki
git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux Pull cpupower utility updates for 7.3-rc1 from Shuah Khan: "Adds support for generic CPPC display that depends only on standardized fields, improving AMD specific implementation for the same. Removes conditional return with no effect as part of tree-wide code clean up effort." * tag 'linux-cpupower-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux: cpupower: remove conditional return with no effect cpupower: Add libm to cpupower for generic CPPC view cpupower: Print kernel and hardware frequency information cpupower: Build and call CPPC information on non-AMD processors cpupower: Add generic CPPC performance display
2026-08-04cpupower: remove conditional return with no effectSang-Heon Jeon
Both branches of the check return the same value, so the check has no effect. Remove it and return the value directly. This is the result of running the Coccinelle script from scripts/coccinelle/misc/cond_return_no_effect.cocci. Link: https://lore.kernel.org/linux-pm/20260723184538.3888637-36-ekffu200098@gmail.com/raw Signed-off-by: Sang-Heon Jeon <ekffu200098@gmail.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2026-07-22tools/power: intel_pstate_tracer: avoid optional imports for helpYousef Alhouseen
intel_pstate_tracer imports Gnuplot and numpy before parsing command-line options. As a result, even "-h" fails if those optional runtime modules are not installed. Move the imports to the paths that need them. This lets the help and invalid-argument paths describe usage without requiring plotting/data dependencies. While there, fix a typo in the help text and matching comments. Signed-off-by: Yousef Alhouseen <alhouseenyousef@gmail.com> Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Link: https://patch.msgid.link/20260624122747.5418-1-alhouseenyousef@gmail.com Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2026-07-20cpupower: Add libm to cpupower for generic CPPC viewJeremy Linton
The patch ("cpupower: Add generic CPPC performance display") uses roundf() but didn't include libm explicitly. This results in build breaks in environments where its not automatically inlined. Add libm to the cpupower makefile to correct this. Fixes: 68f34fad760b ("cpupower: Add generic CPPC performance display") Signed-off-by: Jeremy Linton <jeremy.linton@arm.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2026-07-16cpupower: Print kernel and hardware frequency informationJeremy Linton
The kernel asserted frequency from scaling_cur_freq may not always match the hardware reported frequency from cpuinfo_cur_freq. Print both values when they are available, and only print the unavailable message on x86 when the hardware frequency can't be read. Link: https://lore.kernel.org/r/20260709221344.1919794-4-jeremy.linton@arm.com Signed-off-by: Jeremy Linton <jeremy.linton@arm.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2026-07-16cpupower: Build and call CPPC information on non-AMD processorsJeremy Linton
Now that we have a generic CPPC printout, call it on !AMD processors. If it fails to detect CPPC, or the registers don't look reasonable then it will exit without printing anything. Link: https://lore.kernel.org/r/20260709221344.1919794-3-jeremy.linton@arm.com Signed-off-by: Jeremy Linton <jeremy.linton@arm.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2026-07-16cpupower: Add generic CPPC performance displayJeremy Linton
Arm64 machines, and possibly others, use the standard ACPI defined CPPC infrastructure. cpupower has CPPC support, but it's largely written around the intricacies of AMD processors, using platform MSRs to avoid shortcomings in the specification. Add a generic CPPC display that depends only on standardized fields. The computed frequency values are best effort and rely on the FW providing optional values that can be used to derive a meaningful frequency at a given unique performance level. Link: https://lore.kernel.org/r/20260709221344.1919794-2-jeremy.linton@arm.com Signed-off-by: Jeremy Linton <jeremy.linton@arm.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2026-06-23Merge tag 'platform-drivers-x86-v7.2-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86 Pull x86 platform driver updates from Ilpo Järvinen: - amd/hfi: Add support for dynamic ranking tables (version 3) - amd/pmc: - Add PMC driver support for AMD 1Ah M80H SoC - Delay suspend for some Lenovo Laptops to avoid keyboard and lid switch problems after s2idle - arm64: qcom-hamoa-ec: Add Hamoa/Purwa/Glymur EC driver - asus-armoury: add support for G614PR, GA402NJ, GA403UM, and FX608JPR - asus-wmi: add keystone dongle support - dell-dw5826e: Add reset driver for DW5826e - dell-laptop: Fix rollback path - hp-wmi: - Add support for Omen 16-ap0xxx (board ID 8D26) and board ID 8B2F - intel-hid: - Add HP ProBook x360 440 G1 5 button array support - Prevent racing ACPI notify handlers - intel/pmc: - Add Nova Lake support - Rate-limit LTR scale-factor warning - intel-uncore-freq: - Expose instance ID in the sysfs - Fix current_freq_khz after CPU hotplug - intel/vsec: Restore BAR fallback for header walk - ISST: Restore SST-PP control to all domains - lenovo-wmi-*: - Add more CPU tunable attributes - Add GPU tunable attributes - Add WMI battery charge limiting - oxpec: add support for OneXPlayer Super X - sel3350-platform: Retain LED state on load and unload - surface: SAM: Add support for Surface Pro 12in - uniwill-laptop: Add support for battery charge modes - tools/power/x86/intel-speed-select: Harden daemon pidfile open - Major refactoring efforts: - ACPI driver to platform driver conversion - Converting drivers to use the improved WMI API - Miscellaneous cleanups / refactoring / improvements * tag 'platform-drivers-x86-v7.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (115 commits) platform/x86/intel/pmc: Add NVL PCI IDs for SSRAM telemetry discovery platform/x86/intel/pmc/ssram: Make PMT registration optional platform/x86/intel/pmc/ssram: Add ACPI discovery scaffolding platform/x86/intel/pmc/ssram: Switch to static array with per-index probe state platform/x86/intel/pmc/ssram: Refactor DEVID/PWRMBASE extraction into helper platform/x86/intel/pmc/ssram: Add PCI platform data platform/x86/intel/pmc/ssram: Rename probe and PCI ID table for consistency platform/x86/intel/pmc: Add ACPI PWRM telemetry driver for Nova Lake S platform/x86/intel/pmc: Add PMC SSRAM Kconfig description platform/x86/intel/pmt: Unify header fetch and add ACPI source platform/x86/intel/pmt: Cache the telemetry discovery header platform/x86/intel/pmt: Pass discovery index instead of resource platform/x86/intel/pmt/telemetry: Move overlap check to post-decode hook platform/x86/intel/pmt/crashlog: Split init into pre-decode platform/x86/intel/pmt: Add pre/post decode hooks around header parsing modpost: Handle malformed WMI GUID strings platform/wmi: Make sysfs attributes const platform/wmi: Make wmi_bus_class const hwmon: (dell-smm) Use new buffer-based WMI API platform/x86: dell-ddv: Use new buffer-based WMI API ...
2026-06-15Merge tag 'pm-7.2-rc1' of ↵Linus Torvalds
gitolite.kernel.org:pub/scm/linux/kernel/git/rafael/linux-pm Pull power management updates from Rafael Wysocki: "Over a half of the changes here are cpufreq updates that include core modifications, fixes of the old-style governors, new hardware support in drivers, assorded driver fixes and cleanups, and the removal of one driver (AMD Elan SC4*). Apart from that, the intel_idle driver will now be able to avoid exposing redundant C-states if PC6 is disabled and there are new sysctl knobs for device suspend/resume watchdog timeouts, hibernation gets built-in LZ4 support for image compression and there is the usual collection of assorted fixes and cleanups. Specifics: - Fix a race between cpufreq suspend and CPU hotplug during system shutdown (Tianxiang Chen) - Avoid redundant target() calls for unchanged limits and fix a typo in a comment in the cpufreq core (Viresh Kumar) - Fix concurrency issues related to sysfs attributes access that affect cpufreq governors using the common governor code (Zhongqiu Han) - Simplify frequency limit handling in the conservative cpufreq governor (Lifeng Zheng) - Fix descriptions of the conservative governor freq_step tunable and the ondemand governor sampling_down_factor tunable in the cpufreq documentation (Pengjie Zhang) - Fix use-after-free and double free during _OSC evaluation in the PCC cpufreq driver (Yuho Choi) - Rework the handling of policy min and max frequency values in the cpufreq core to allow drivers to specify special initial values for the scaling_min_freq and scaling_max_freq sysfs attributes (Pierre Gondois) - Add cpufreq scaling support for Qualcomm Shikra SoC (Taniya Das, Imran Shaik). - Improve the warning message on HWP-disabled hybrid processors printed by the intel_pstate driver and sync policy->cur during CPU offline in it (Yohei Kojima, Fushuai Wang) - Drop cpufreq support for AMD Elan SC4* (Sean Young) - Minor fixes for cpufreq drivers (Krzysztof Kozlowski, Akashdeep Kaur, Hans Zhang, Guangshuo Li, Xueqin Luo) - Clean up dead dependencies on X86 in the cpufreq Kconfig (Julian Braha) - Allow the intel_idle driver to avoid exposing C-states that are redundant when PC6 is disabled (Artem Bityutskiy) - Fix memory leak and a potential race in the OPP core (Abdun Nihaal, Di Shen) - Mark Rust OPP methods as inline (Nicolás Antinori) - Fix misc device registration failure path in the PM QoS core (Yuho Choi) - Add sysctl interface for DPM watchdog timeouts (Tzung-Bi Shih) - Use complete() instead of complete_all() in device_pm_sleep_init() to avoid a false-positive warning from lockdep_assert_RT_in_threaded_ctx() when CONFIG_PROVE_RAW_LOCK_NESTING is enabled (Jiakai Xu) - Use a flexible array for CRC uncompressed buffers during hibernation image saving (Rosen Penev) - Make the LZ4 algorithm available for hibernation compression (l1rox3) - Move the preallocate_image() call during hibernation after the "prepare" phase of the "freeze" transition (Matthew Leach) - Fix a memory leak in rapl_add_package_cpuslocked() in the intel_rapl power capping driver and use sysfs_emit() in cpumask_show() in that driver (Sumeet Pawnikar, Yury Norov) - Fix ValueError when parsing incomplete device properties in the pm-graph utility (Gongwei Li)" * tag 'pm-7.2-rc1' of gitolite.kernel.org:pub/scm/linux/kernel/git/rafael/linux-pm: (40 commits) PM: dpm_watchdog: Add sysctl interface for DPM watchdog timeouts PM: QoS: Fix misc device registration unwind cpufreq: Use policy->min/max init as QoS request cpufreq: Remove driver default policy->min/max init cpufreq: Set default policy->min/max values for all drivers cpufreq: Extract cpufreq_policy_init_qos() function cpufreq: Documentation: fix conservative governor freq_step description cpufreq: ti: Add EPROBE_DEFER for K3 SoCs cpufreq: qcom: Add cpufreq scaling support for Qualcomm Shikra SoC dt-bindings: cpufreq: Document Qualcomm Shikra SoC EPSS powercap: intel_rapl: Use sysfs_emit() in cpumask_show() cpufreq: governor: Fix stale prev_cpu_nice spike when enabling ignore_nice_load cpufreq: governor: Fix data races on per-CPU idle/nice baselines PM: hibernate: Use flexible array for CRC uncompressed buffers powercap: intel_rapl: Fix memory leak in rapl_add_package_cpuslocked() PM: hibernate: make LZ4 available for hibernation compression PM: sleep: Use complete() in device_pm_sleep_init() opp: rust: mark OPP methods as inline cpufreq: intel_pstate: Improve warning message on HWP-disabled hybrid CPUs cpufreq: elanfreq: Drop support for AMD Elan SC4* ...
2026-06-02tools/power/x86/intel-speed-select: Harden daemon pidfile openAli Ahmet MEMIS
Avoid symlink-based pidfile clobbering by opening the pidfile with O_NOFOLLOW and validating it with fstat() before locking/writing. The daemon currently uses a fixed pidfile path under /tmp. A local unprivileged user can pre-create a symlink at that path and cause a root-run daemon instance to write into an attacker-chosen file. Fixes: 7fd786dfbd2c ("tools/power/x86/intel-speed-select: OOB daemon mode") Signed-off-by: Ali Ahmet MEMIS <dev@unknownbbqr.xyz> Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Cc: stable@kernel.org
2026-05-27ACPICA: Update the copyright year to 2026Pawel Chmielewski
Update copyright notices in all ACPICA files. Link: https://github.com/acpica/acpica/commit/9def02549a9c Signed-off-by: Pawel Chmielewski <pawel.chmielewski@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://patch.msgid.link/4379132.1IzOArtZ34@rafael.j.wysocki
2026-05-24tools/power turbostat: pmt: Improve sscanf() hygieneLen Brown
Explicitly check sscanf() return values for number of matches, and handle EOF (-1). Defensive programming -- not an issue seen by users. Fixes: 4265a86582ea ("tools/power turbostat: Add PMT directory iterator helper") Assisted-by: Claude: Claude Sonnet 4.6 Signed-off-by: Len Brown <len.brown@intel.com>
2026-05-24tools/power turbostat: Cleanup: bool force_loadLen Brown
It is confusing to increment what is effectively a boolean value. Define force_load as boolean, and access it accordingly. Assisted-by: Claude: Claude Sonnet 4.6 Signed-off-by: Len Brown <len.brown@intel.com>
2026-05-24tools/power turbostat: Fix typo: MHz, not MhzLen Brown
The SI symbol for mega-hertz capitalises both the SI prefix ('M') and the unit symbol ('Hz') Assisted-by: Claude: Claude Sonnet 4.6 Signed-off-by: Len Brown <len.brown@intel.com>
2026-05-24tools/power turbostat: Cleanup: get_msr() return valueLen Brown
get_msr() exits on failure. Delete its return value. Assisted-by: Claude: Claude Sonnet 4.6 Signed-off-by: Len Brown <len.brown@intel.com>
2026-05-24tools/power turbostat: Cleanup: consistently use warn/err, not perrorLen Brown
No functional change, unless you count the uniform return value of -1 on calloc failure. Assisted-by: Claude: Claude Sonnet 4.6 Signed-off-by: Len Brown <len.brown@intel.com>
2026-05-24tools/power turbostat: Cleanup add_counter declarationLen Brown
Declaration and definition parameter name mis-match was confusing. Some params can be 'const'. No Functional Change Assisted-by: Claude: Claude Sonnet 4.6 Signed-off-by: Len Brown <len.brown@intel.com>
2026-05-24tools/power turbostat: Cleanup counter sets debug codeLen Brown
When the debug "--Dump" option is used to dump counter values, also dump the counter sets. Update that counter counter-set debug code to pass code review. Assisted-by: Claude: Claude Sonnet 4.6 Signed-off-by: Len Brown <len.brown@intel.com>
2026-05-24tools/power turbostat: Cleanup: Unify comparisons to max_cpu_numLen Brown
Unify the syntax of loops over all CPUs for consistency, since we just fixed two off-by-one bugs. No functional change. Signed-off-by: Len Brown <len.brown@intel.com>
2026-05-24tools/power turbostat: Cleanup: Remove useless assert()Len Brown
No functional change. Assisted-by: Claude:claude-haiku-4-5 Signed-off-by: Len Brown <len.brown@intel.com>
2026-05-24tools/power turbostat: Rename cpu_subset to cpuset_cmdlineLen Brown
The cpu_set supporting "--cpu" on the cmdline is special. Unlike all other cpu_sets, it is allocated, re-used, and never freed. Add a comment noting this and name it "cpuset_cmdline" to clarify its use. No functional change. Signed-off-by: Len Brown <len.brown@intel.com>
2026-05-24tools/power turbostat: Cleanup: Delete duplicate table entryLen Brown
No functional change. Assisted-by: Claude:claude-haiku-4-5 Signed-off-by: Len Brown <len.brown@intel.com>
2026-05-24tools/power turbostat: Allow mulitple --cpu on cmdlineLen Brown
If --cpu is on the cmdline more than once, previous invocations are forgotton (and their cpu_set is leaked). Allow multiple invocations of --cpu on the cmline. Or them together, reusing the same same cpu_set. Signed-off-by: Len Brown <len.brown@intel.com>
2026-05-24tools/power turbostat: Cleanup: Use one cpu_setsize for all purposesLen Brown
Use a single cpu_setsize to describe every cpu_set_t. Size it based on the maximum possible cpu number. No functional change. Signed-off-by: Len Brown <len.brown@intel.com>
2026-05-24tools/power turbostat: Cleanup: Remove hard-coded 8192 CPU limitLen Brown
The --cpu-set cmdline option was parsed before topology_probe() set max_cpu_num, and so it used a hard-coded cpu limit of 8192. Probe max_cpu_num earlier and allocate the set for --cpu-set using the same size as all other cpu sets, sufficiently large enough to hold max possible (but not bigger). No functional change, unless you count fixing some error paths. Signed-off-by: Len Brown <len.brown@intel.com>
2026-05-24tools/power turbostat: Rename: Differntiate counter and CPU setsLen Brown
Sets of Built-In-Counters (BICs) are implemented using cpu_set_t. Since cpu_set_t is also used for sets of CPU's, invent the name "bic_set_t" to make it more clear which is which. No functional change. Signed-off-by: Len Brown <len.brown@intel.com>
2026-05-24tools/power turbostat: Cleanup: Delete unused flagsLen Brown
No functional change. Assisted-by: Claude:claude-haiku-4-5 Signed-off-by: Len Brown <len.brown@intel.com>
2026-05-24tools/power turbostat: Fix add_counter issue if > 24 counters.Len Brown
We allocate space for added counters ahead of time, and we arbitrarily chose 24 added counters of each type. If a future code flow hits this limit and continues, and then removes counters, we do a phantom increment and lose track of the number of added counters. Increment the count only if there is no error. Fixes: 388e9c8134be6b ("tools/power turbostat: Make extensible via the --add parameter") Assisted-by: Claude: Claude Sonnet 4.6 Signed-off-by: Len Brown <len.brown@intel.com>
2026-05-24tools/power turbostat: Fix PMT error path fd handlingLen Brown
It is possible to leak a file descriptor if a diretory open succeeds, but the scan fails. Close the fd on error. Also, on cleanup, check for NULL fd. Assisted-by: Claude: Claude Sonnet 4.6 Fixes: 4265a86582eaa2 ("tools/power turbostat: Add PMT directory iterator helper") Signed-off-by: Len Brown <len.brown@intel.com>
2026-05-24tools/power turbostat: Fix CWF PMT off-by-oneLen Brown
Fix off-by-one error causing last CPU on CWF to never get a pmt counter allocated. Fixes: 5ce1e9bbb2a1 ("tools/power turbostat: Add CPU%c1e BIC for CWF") Assisted-by: GitHub Copilot (claude-sonnet-4.6) Signed-off-by: Len Brown <len.brown@intel.com>
2026-05-24tools/power turbostat: Fix fd_perf leak on resetLen Brown
When turbostat notices a topology change, it frees perf file descriptors for each CPU to prepare to re-initialize. Fix an off-by-one error in that per-cpu loop that resulted in a file descriptor leak of the file for the highest numbered CPU in the system. Fixes: 67bab430f4e7 ("tools/power turbostat: Group SMI counter with APERF and MPERF") Assisted-by: GitHub Copilot (claude-sonnet-4.6) Signed-off-by: Len Brown <len.brown@intel.com>
2026-04-30PM: tools: pm-graph: fix ValueError when parsing incomplete device propertiesGongwei Li
When parsing device properties from ftrace data, the devprops() function assumes that each line has at least three fields and that the third field (f[2]) always contains a valid integer. However, due to incomplete or corrupted ftrace logs, f[2] may be missing, empty, or non-existent. This can lead to the following error: Traceback (most recent call last): File "../sleepgraph.py", line 7142, in <module> stamp = rerunTest(sysvals.outdir) File "../sleepgraph.py", line 6255, in rerunTest testruns, stamp = processData() File "../sleepgraph.py", line 6181, in processData testruns, error = parseTraceLog(live) File "../sleepgraph.py", line 3470, in parseTraceLog tp, tf = loadTraceLog() File "../sleepgraph.py", line 3398, in loadTraceLog if tp.stampInfo(line, sysvals): File "../sleepgraph.py", line 3073, in stampInfo self.parsePlatformInfo(line, sv) File "../sleepgraph.py", line 3177, in parsePlatformInfo sv.devprops = self.devprops(sv.b64unzip(info)) File "../sleepgraph.py", line 3158, in devprops if int(f[2]): ValueError: invalid literal for int() with base 10: '' To prevent this crash, add proper validation before accessing. Signed-off-by: Gongwei Li <ligongwei@kylinos.cn> Acked-by: Todd Brandt <todd.e.brandt@intel.com> [ rjw: Subject tweak ] Link: https://patch.msgid.link/20260424071208.3610628-1-13875017792@163.com Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2026-04-25Merge tag 'power-utilities-2026.04.25' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux Pull power utility updates from Len Brown: "x86_energy_perf_policy: - Initial SoC Slider support turbostat: - Display HT siblings in cpu# order - Add Module-ID column - Print Core-ID and APIC-ID in hex - Fix misc bugs" * tag 'power-utilities-2026.04.25' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: tools/power x86_energy_perf_policy: Version 2026.04.25 tools/power x86_energy_perf_policy.8: Document SoC Slider Options tools/power x86_energy_perf_policy: Enhances SoC Slider related checks tools/power turbostat: v2026.04.21 tools/power turbostat: Process HT siblings in CPU order tools/power turbostat: Show module_id column tools/power turbostat: Print core_id and apic_id in hex tools/power turbostat: Cleanup print helper functions tools/power turbostat: Fix --cpu-set 1 regression on HT systems tools/power turbostat: Fix --cpu-set 0 regression on HT systems tools/power turbostat: Fix unrecognized option '-P' tools/power turbostat: Fix AMD RAPL regression on big systems tools/power/x86: Add SOC slider and platform profile support
2026-04-25Merge branches 'turbostat' and 'x86_energy_perf_policy' into power-utilitiesLen Brown
2026-04-25tools/power x86_energy_perf_policy: Version 2026.04.25Len Brown
Since v2025.11.22: Initial SoC Slider support SoC Slider is an SoC-wide power/performance policy setting. On SoC Slider systems, EPP plays a diminished role. Whitespace cleanup via: indent -npro -kr -i8 -ts8 -sob -l160 -ss -ncs -cp1 No functional changes Signed-off-by: Len Brown <len.brown@intel.com>
2026-04-25tools/power x86_energy_perf_policy.8: Document SoC Slider OptionsLen Brown
x86_energy_perf_policy accesses the SoC Slider via standard user/kernel APIs to the processor_thermal_soc_slider driver. Machines that support SoC Slider largely use it instead of EPP, which may continue to exist in a diminished role, or vanish entirely. Signed-off-by: Len Brown <len.brown@intel.com>
2026-04-25tools/power x86_energy_perf_policy: Enhances SoC Slider related checksLen Brown
When processor_thermal_soc_slider is loaded, its slider and offset modparams are visible. Check that the driver actually registered the profile named "SoC Slider" before reading or writing these modparams. n.b. This utility allows writing the Slider and Offset modparams even if the driver policy is not "balanced". Currently the processor_thermal_soc_slider consults those modparams only in "balanced" mode. Signed-off-by: Len Brown <len.brown@intel.com>
2026-04-22tools/power turbostat: v2026.04.21Len Brown
Since v2026.02.14 Display HT siblings in cpu# order. Add Module-ID column. Print Core-ID and APIC-ID in hex. Fix misc bugs. Signed-off-by: Len Brown <len.brown@intel.com>
2026-04-22tools/power turbostat: Process HT siblings in CPU orderLen Brown
On large systems with HT sibling cpu#'s more than 32 apart, HT siblings were processed and displayed in reverse order. This was due to how set_thread_siblings() parsed the sibling-bit-mask. Update set_thread_siblings to instead parse the sibling-list, like other cpu lists, and to thus order HT siblings by ascending CPU number, no matter the size of the system. Signed-off-by: Len Brown <len.brown@intel.com>
2026-04-22tools/power turbostat: Show module_id columnLen Brown
Get the "module_id" from the Linux topology "cluster_id". If the there is more than one id, show it by default. Module joins Die etc. in the "topology" group. Display in hex, as it is usually based mask of the APIC-id Signed-off-by: Len Brown <len.brown@intel.com>
2026-04-22tools/power turbostat: Print core_id and apic_id in hexLen Brown
The core_id is based on a mask of the apic_id. Print them both in hex, rather than decimal, to make this relationship visibly clear. Signed-off-by: Len Brown <len.brown@intel.com>
2026-04-22tools/power turbostat: Cleanup print helper functionsArtem Bityutskiy
Make printer helper functions more readable by factoring out a local 'sep' variable. Remove the redundant parentheses around sprintf() calls. Remove an unnecessary cast to "unsigned int" by using the '%08llx' instead of '%08x'. No functional changes. [lenb: fix typos, simplify] Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2026-04-22tools/power turbostat: Fix --cpu-set 1 regression on HT systemsLen Brown
When the "--cpu-set" option limits turbostat to run on a higher numbered HT sibling, it exits upon dividing by zero. This is because the HT support handles higher numbered siblings at the same time as lower numbered siblings. But when that lower number sibling is dis-allowed, the higher numbered sibling is never processed. The result is a time delta of 0, which results in a divide by 0 for any of the "per-second" metrics. Enhance the HT enumeration code to record all siblings (up to SMT4). Consult this complete HT sibling list to determine when to process an HT sibling, and when to skip it. Fixes: a2b4d0f8bf07 ("tools/power turbostat: Favor cpu# over core#") Signed-off-by: Len Brown <len.brown@intel.com>
2026-04-22tools/power turbostat: Fix --cpu-set 0 regression on HT systemsLen Brown
"turbostat --cpu-set 0" appears to hang if cpu0 has an HT sibling. This is because the initialization code recognizes that it does not have to open perf files for the HT sibling, but the HT support in the collection code sees the HT sibling and tries to read from an uninitialized file descriptor, 0 (standard input). Access HT siblings only when they are in the allowed set. Fixes: a2b4d0f8bf07 ("tools/power turbostat: Favor cpu# over core#") Signed-off-by: Len Brown <len.brown@intel.com> Reported-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2026-04-22tools/power turbostat: Fix unrecognized option '-P'David Arcari
The '-P' short option (shorthand for --no-perf) is not present in the optstring of the second call to getopt_long_only(). This results in the "unrecognized option" error when the tool reaches the main parsing loop. Add 'P' to the second getopt_long_only() call to ensure it is consistently recognized. Fixes: a0e86c90b83c ("tools/power turbostat: Add --no-perf option") Signed-off-by: David Arcari <darcari@redhat.com> Signed-off-by: Len Brown <len.brown@intel.com>
2026-04-21tools/power turbostat: Fix AMD RAPL regression on big systemsLen Brown
turbostat.c:8688: rapl_perf_init: Assertion `next_domain < num_domains' failed. The initial fix for this regression was incomplete, as it did not handle multi-package systems with sparse core ids. Fixes: ef0e60083f76 ("tools/power turbostat: Fix AMD RAPL regression") Signed-off-by: Len Brown <len.brown@intel.com>
2026-04-20Merge tag 'platform-drivers-x86-v7.1-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86 Pull x86 platform driver updates from Ilpo Järvinen: "asus-wmi: - Retain battery charge threshold during boot which avoids unsolicited change to 100%. Return -ENODATA when the limit is not yet known - Improve screenpad power/brightness handling consistency - Fix screenpad brightness range barco-p50-gpio: - Normalize gpio_get return values bitland-mifs-wmi: - Add driver for Bitland laptops (supports platform profile, hwmon, kbd backlight, gpu mode, hotkeys, and fan boost) dell_rbu: - Fix using uninitialized value in sysfs write function dell-wmi-sysman: - Respect destination length when constructing enum strings hp-wmi: - Propagate fan setting apply failures and log an error - Fix sysfs write vs work handler cancel_delayed_work_sync() deadlock - Correct keepalive schedule_delayed_work() to mod_delayed_work() - Fix u8 underflows in GPU delta calculation - Use mutex to protect fan pwm/mode - Ignore kbd backlight and FnLock key events that are handled by FW - Fix fan table parsing (use correct field) - Add support for Omen 14-fb0xxx, 16-n0xxx, 16-wf1xxx, and Omen MAX 16-ak0xxxx input: trackpoint & thinkpad_acpi: - Enable doubletap by default and add sysfs enable/disable int3472: - Add support for GPIO type 0x02 (IR flood LED) intel-speed-select: (updated to v1.26) - Avoid using current base frequency as maximum - Fix CPU extended family ID decoding - Fix exit code - Improve error reporting intel/vsec: - Refactor to support ACPI-enumerated PMT endpoints. pcengines-apuv2: - Attach software node to the gpiochip uniwill: - Refactor hwmon to smaller parts to accomodate HW diversity - Support USB-C power/performance priority switch through sysfs - Add another XMG Fusion 15 (L19) DMI vendor - Enable fine-grained features to device lineup mapping wmi: - Perform output size check within WMI core to allow simpler WMI drivers misc: - acpi_driver -> platform driver conversions (a large number of changes from Rafael J. Wysocki) - cleanups / refactoring / improvements" * tag 'platform-drivers-x86-v7.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (106 commits) platform/x86: hp-wmi: Add support for Omen 16-wf1xxx (8C77) platform/x86: hp-wmi: Add support for Omen 16-n0xxx (8A44) platform/x86: hp-wmi: Add support for OMEN MAX 16-ak0xxx (8D87) platform/x86: hp-wmi: fix fan table parsing platform/x86: hp-wmi: add Omen 14-fb0xxx (board 8C58) support platform/wmi: Replace .no_notify_data with .min_event_size platform/wmi: Extend wmidev_query_block() to reject undersized data platform/wmi: Extend wmidev_invoke_method() to reject undersized data platform/wmi: Prepare to reject undersized unmarshalling results platform/wmi: Convert drivers to use wmidev_invoke_procedure() platform/wmi: Add wmidev_invoke_procedure() platform/x86: int3472: Add support for GPIO type 0x02 (IR flood LED) platform/x86: int3472: Parameterize LED con_id in registration platform/x86: int3472: Rename pled to led in LED registration code platform/x86: int3472: Use local variable for LED struct access platform/x86: thinkpad_acpi: remove obsolete TODO comment platform/x86: dell-wmi-sysman: bound enumeration string aggregation platform/x86: hp-wmi: Ignore backlight and FnLock events platform/x86: uniwill-laptop: Fix signedness bug platform/x86: dell_rbu: avoid uninit value usage in packet_size_write() ...
2026-04-15tools/power/x86: Add SOC slider and platform profile supportKaushlendra Kumar
Add support for reading and writing SOC slider parameters and platform profile via sysfs in x86_energy_perf_policy. New command-line options: --soc-slider-balance <value> --soc-slider-offset <value> --platform-profile <name> These options allow control of the processor thermal SOC slider balance and offset through the processor_thermal_soc_slider module, as well as the platform profile class interface. When no update flags are set, the tool now also prints the current SOC slider and platform profile values alongside existing MSR output. Signed-off-by: Kaushlendra Kumar <kaushlendra.kumar@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2026-04-13Merge tag 'pm-7.1-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management updates from Rafael Wysocki: "Once again, cpufreq is the most active development area, mostly because of the new feature additions and documentation updates in the amd-pstate driver, but there are also changes in the cpufreq core related to boost support and other assorted updates elsewhere. Next up are power capping changes due to the major cleanup of the Intel RAPL driver. On the cpuidle front, a new C-states table for Intel Panther Lake is added to the intel_idle driver, the stopped tick handling in the menu and teo governors is updated, and there are a couple of cleanups. Apart from the above, support for Tegra114 is added to devfreq and there are assorted cleanups of that code, there are also two updates of the operating performance points (OPP) library, two minor updates related to hibernation, and cpupower utility man pages updates and cleanups. Specifics: - Update qcom-hw DT bindings to include Eliza hardware (Abel Vesa) - Update cpufreq-dt-platdev blocklist (Faruque Ansari) - Minor updates to driver and dt-bindings for Tegra (Thierry Reding, Rosen Penev) - Add MAINTAINERS entry for CPPC driver (Viresh Kumar) - Add support for new features: CPPC performance priority, Dynamic EPP, Raw EPP, and new unit tests for them to amd-pstate (Gautham Shenoy, Mario Limonciello) - Fix sysfs files being present when HW missing and broken/outdated documentation in the amd-pstate driver (Ninad Naik, Gautham Shenoy) - Pass the policy to cpufreq_driver->adjust_perf() to avoid using cpufreq_cpu_get() in the .adjust_perf() callback in amd-pstate which leads to a scheduling-while-atomic bug (K Prateek Nayak) - Clean up dead code in Kconfig for cpufreq (Julian Braha) - Remove max_freq_req update for pre-existing cpufreq policy and add a boost_freq_req QoS request to save the boost constraint instead of overwriting the last scaling_max_freq constraint (Pierre Gondois) - Embed cpufreq QoS freq_req objects in cpufreq policy so they all are allocated in one go along with the policy to simplify lifetime rules and avoid error handling issues (Viresh Kumar) - Use DMI max speed when CPPC is unavailable in the acpi-cpufreq scaling driver (Henry Tseng) - Switch policy_is_shared() in cpufreq to using cpumask_nth() instead of cpumask_weight() because the former is more efficient (Yury Norov) - Use sysfs_emit() in sysfs show functions for cpufreq governor attributes (Thorsten Blum) - Update intel_pstate to stop returning an error when "off" is written to its status sysfs attribute while the driver is already off (Fabio De Francesco) - Include current frequency in the debug message printed by __cpufreq_driver_target() (Pengjie Zhang) - Refine stopped tick handling in the menu cpuidle governor and rearrange stopped tick handling in the teo cpuidle governor (Rafael Wysocki) - Add Panther Lake C-states table to the intel_idle driver (Artem Bityutskiy) - Clean up dead dependencies on CPU_IDLE in Kconfig (Julian Braha) - Simplify cpuidle_register_device() with guard() (Huisong Li) - Use performance level if available to distinguish between rates in OPP debugfs (Manivannan Sadhasivam) - Fix scoped_guard in dev_pm_opp_xlate_required_opp() (Viresh Kumar) - Return -ENODATA if the snapshot image is not loaded (Alberto Garcia) - Remove inclusion of crypto/hash.h from hibernate_64.c on x86 (Eric Biggers) - 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) - Remove unneeded casting for HZ_PER_KHZ in devfreq (Andy Shevchenko) - Use _visible attribute to replace create/remove_sysfs_files() in devfreq (Pengjie Zhang) - Add Tegra114 support to activity monitor device in tegra30-devfreq as a preparation to upcoming EMC controller support (Svyatoslav Ryhel) - Fix mistakes in cpupower man pages, add the boost and epp options to the cpupower-frequency-info man page, and add the perf-bias option to the cpupower-info man page (Roberto Ricci) - Remove unnecessary extern declarations from getopt.h in arguments parsing functions in cpufreq-set, cpuidle-info, cpuidle-set, cpupower-info, and cpupower-set utilities (Kaushlendra Kumar)" * tag 'pm-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (74 commits) cpufreq/amd-pstate: Add POWER_SUPPLY select for dynamic EPP cpupower: remove extern declarations in cmd functions cpuidle: Simplify cpuidle_register_device() with guard() PM / devfreq: tegra30-devfreq: add support for Tegra114 PM / devfreq: use _visible attribute to replace create/remove_sysfs_files() PM / devfreq: Remove unneeded casting for HZ_PER_KHZ MAINTAINERS: amd-pstate: Step down as maintainer, add Prateek as reviewer cpufreq: Pass the policy to cpufreq_driver->adjust_perf() cpufreq/amd-pstate: Pass the policy to amd_pstate_update() cpufreq/amd-pstate-ut: Add a unit test for raw EPP cpufreq/amd-pstate: Add support for raw EPP writes cpufreq/amd-pstate: Add support for platform profile class cpufreq/amd-pstate: add kernel command line to override dynamic epp cpufreq/amd-pstate: Add dynamic energy performance preference Documentation: amd-pstate: fix dead links in the reference section cpufreq/amd-pstate: Cache the max frequency in cpudata Documentation/amd-pstate: Add documentation for amd_pstate_floor_{freq,count} Documentation/amd-pstate: List amd_pstate_prefcore_ranking sysfs file Documentation/amd-pstate: List amd_pstate_hw_prefcore sysfs file amd-pstate-ut: Add a testcase to validate the visibility of driver attributes ...