cpu frequency scaling framework · Maintained

Maintainers

• M "Rafael J. Wysocki" <rafael@kernel.org>
• M Viresh Kumar <viresh.kumar@linaro.org>

Paths

• F Documentation/admin-guide/pm/cpufreq.rst
• F Documentation/admin-guide/pm/intel_pstate.rst
• F Documentation/cpu-freq/
• F Documentation/devicetree/bindings/cpufreq/
• F drivers/cpufreq/
• F include/linux/cpufreq.h
• F include/linux/sched/cpufreq.h
• F kernel/sched/cpufreq*.c
• F rust/kernel/cpufreq.rs
• F tools/testing/selftests/cpufreq/

Last 30 days

Most active threads (last 7 days)

• WARM1d [PATCH] cpufreq: airoha: fix probe failure with correct error check
  2026-08-21 08:45 · 0 replies in 7d · Christian Marangi <ansuelsmth@gmail.com>
• WARM3d Linux 6.1.183
  2026-08-19 16:52 · 1 reply in 7d · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• WARM3d Linux 5.15.216
  2026-08-19 16:52 · 1 reply in 7d · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• WARM3d Linux 5.10.265
  2026-08-19 16:51 · 1 reply in 7d · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• WARM1d [PATCH 5/5] cpufreq: loongson3: Replace IOCSR read/write with MMIO ones
  2026-08-18 12:42 · 0 replies in 7d · Huacai Chen <hidden>
• WARM1d [PATCH 4/5] cpufreq: loongson3: Use global physical CPU ID in get/target callbacks
  2026-08-18 12:41 · 0 replies in 7d · Huacai Chen <hidden>
• WARM1d [PATCH 3/5] cpufreq: loongson3: Replace per-package mutex with per-node
  2026-08-18 12:41 · 0 replies in 7d · Huacai Chen <hidden>
• WARM1d [PATCH 2/5] cpufreq: loongson3: Adjust the width of id and val in smc_message
  2026-08-18 12:40 · 0 replies in 7d · Huacai Chen <hidden>
• WARM1d [PATCH 1/5] cpufreq: loongson3: Make this drvier depend on MACH_LOONGSON64
  2026-08-18 12:40 · 0 replies in 7d · Huacai Chen <hidden>

Active reviewers (last 30 days)

• Viresh Kumar <viresh.kumar@linaro.org>
  3 attestations (3 Acked-by) · last on 2026-07-30
• Zhongqiu Han <hidden>
  3 attestations (3 Reviewed-by) · last on 2026-07-30
• Vincent Guittot <vincent.guittot@linaro.org>
  3 attestations (3 Acked-by) · last on 2026-07-30
• Sumit Gupta <sumitg@nvidia.com>
  1 attestation (1 Suggested-by) · last on 2026-08-03

Recent patches

Most-recent 30 patches in this subsystem on stable (capped at 30), ordered by date desc.

• WARM1d [PATCH] cpufreq: airoha: fix probe failure with correct error check
  2026-08-21 · Christian Marangi <ansuelsmth@gmail.com>
• DORMANTno replies Re: Linux 6.1.183
  2026-08-19 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• DORMANTno replies Re: Linux 5.15.216
  2026-08-19 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• DORMANTno replies Re: Linux 5.10.265
  2026-08-19 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• WARM1d [PATCH 5/5] cpufreq: loongson3: Replace IOCSR read/write with MMIO ones
  2026-08-18 · Huacai Chen <hidden>
• WARM1d [PATCH 4/5] cpufreq: loongson3: Use global physical CPU ID in get/target callbacks
  2026-08-18 · Huacai Chen <hidden>
• WARM1d [PATCH 3/5] cpufreq: loongson3: Replace per-package mutex with per-node
  2026-08-18 · Huacai Chen <hidden>
• WARM1d [PATCH 2/5] cpufreq: loongson3: Adjust the width of id and val in smc_message
  2026-08-18 · Huacai Chen <hidden>
• WARM1d [PATCH 1/5] cpufreq: loongson3: Make this drvier depend on MACH_LOONGSON64
  2026-08-18 · Huacai Chen <hidden>
• COOLING13d Re: Linux 7.1.8
  2026-08-09 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• COOLING13d Re: Linux 6.18.44
  2026-08-09 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• DORMANTno replies Re: Linux 6.12.103
  2026-08-09 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• DORMANTno replies Re: Linux 6.6.151
  2026-08-09 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• COLD17d [PATCH 1/3] ACPI: CPPC: Reject desired_perf reads on _CPC revision 4+
  2026-08-03 · Christian Loehle <christian.loehle@arm.com>
• COLD19d Re: Linux 7.1.6
  2026-08-03 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• COLD19d Re: Linux 6.18.42
  2026-08-03 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• DORMANTno replies Re: Linux 6.12.101
  2026-08-03 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• COLD18d REVIEWED: 9 (8M) [PATCH 6.12 079/602] cpufreq: Make cpufreq_update_pressure() fall back to cpuinfo.max_freq
  2026-07-30 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• COLD20d REVIEWED: 9 (8M) [PATCH 6.18 095/675] cpufreq: Make cpufreq_update_pressure() fall back to cpuinfo.max_freq
  2026-07-30 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• COLD20d REVIEWED: 9 (8M) [PATCH 7.1 086/744] cpufreq: Make cpufreq_update_pressure() fall back to cpuinfo.max_freq
  2026-07-30 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• COLD26d [PATCH] cpufreq: powernow-k8: Fix possible memory leak in powernowk8_cpu_init()
  2026-07-27 · Abdun Nihaal <hidden>
• COLD29d Re: Linux 7.1.5
  2026-07-24 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• DORMANTno replies Re: Linux 6.18.40
  2026-07-24 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• DORMANTno replies Re: Linux 6.12.97
  2026-07-24 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• COLD29d Re: Linux 6.6.145
  2026-07-24 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• DORMANTno replies Re: Linux 6.1.178
  2026-07-24 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• DORMANTno replies Re: Linux 5.10.261
  2026-07-24 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• DORMANTno replies Re: Linux 5.15.212
  2026-07-24 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• COLD31d [PATCH 2/2] cpufreq: cppc: Sanitize lockless policy limit snapshots
  2026-07-22 · Christian Loehle <christian.loehle@arm.com>
• COLD31d [PATCH 1/2] ACPI: CPPC: Check all controls for fast switching
  2026-07-22 · Christian Loehle <christian.loehle@arm.com>

Needs attention (review trailers in, no pickup)

Patches with review trailers that haven't landed in mainline and haven't been Acked by a maintainer. Oldest first.

• STALE192d REVIEWED: 7 (7M) [PATCH AUTOSEL 6.19-6.18] rust: cpufreq: always inline functions using build_assert with arguments
  2026-02-11 · Sasha Levin <sashal@kernel.org> · 1 Reviewed-by
• COLD37d REVIEWED: 1 (0M) FAILED: patch "[PATCH] cpufreq: qcom-cpufreq-hw: Fix possible double free" failed to apply to 6.6-stable tree
  2026-07-14 · <gregkh@linuxfoundation.org> · 1 Reviewed-by
• DORMANTno replies REVIEWED: 1 (0M) [PATCH 6.6.y 3/3] cpufreq: qcom-cpufreq-hw: Fix possible double free
  2026-07-16 · Sasha Levin <sashal@kernel.org> · 1 Reviewed-by

Quiet for 30+ days

Patches with no review trailers and no replies. Either the author is heads-down elsewhere or these slipped through. Oldest first.

• STALE192d [PATCH AUTOSEL 6.19-6.6] cpufreq: dt-platdev: Block the driver from probing on more QC platforms
  2026-02-11 · Sasha Levin <sashal@kernel.org>
• STALE175d [PATCH 6.19 051/781] cpufreq: scmi: Fix device_node reference leak in scmi_cpu_domain_id()
  2026-02-25 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE175d [PATCH 6.19 064/781] cpufreq: intel_pstate: Enable asym capacity only when CPU SMT is not possible
  2026-02-25 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE166d [PATCH 6.18 059/641] cpufreq: intel_pstate: Enable asym capacity only when CPU SMT is not possible
  2026-02-25 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE166d [PATCH 6.18 048/641] cpufreq: scmi: Fix device_node reference leak in scmi_cpu_domain_id()
  2026-02-25 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• DORMANTno replies Re: Linux 6.18.14
  2026-02-26 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE175d Re: Linux 6.19.4
  2026-02-26 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE165d [PATCH 6.19 078/844] cpufreq: dt-platdev: Block the driver from probing on more QC platforms
  2026-02-28 · Sasha Levin <sashal@kernel.org>
• DORMANTno replies Re: Linux 6.19.6
  2026-03-04 · Sasha Levin <sashal@kernel.org>
• DORMANTno replies Re: Linux 6.18.16
  2026-03-04 · Sasha Levin <sashal@kernel.org>