acpi · Supported

Maintainers

• M "Rafael J. Wysocki" <rafael@kernel.org>
• R Len Brown <lenb@kernel.org>

Paths

• F Documentation/ABI/testing/configfs-acpi
• F Documentation/ABI/testing/sysfs-bus-acpi
• F Documentation/firmware-guide/acpi/
• F arch/x86/kernel/acpi/
• F arch/x86/pci/acpi.c
• F drivers/acpi/
• F drivers/pci/*/*acpi*
• F drivers/pci/*acpi*
• F drivers/pnp/pnpacpi/
• F include/acpi/
• F include/linux/acpi.h
• F include/linux/fwnode.h
• F include/linux/fw_table.h
• F lib/fw_table.c
• F rust/helpers/acpi.c
• F rust/kernel/acpi.rs
• F tools/power/acpi/

Last 30 days

Most active threads (last 7 days)

• COOLING5d [PATCH v2 00/11] rust: driver: use pointers instead of indices for ID info
  2026-06-29 12:40 · 3 replies in 7d · Gary Guo <gary@garyguo.net>
• HOTtoday [PATCH 00/32] x86/msr: Drop 32-bit MSR interfaces
  2026-06-29 06:08 · 2 replies in 7d · Juergen Gross <jgross@suse.com>

Recent patches

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

• COOLING5d [PATCH v2 06/11] rust: driver: centralize device ID handling
  2026-06-29 · Gary Guo <gary@garyguo.net>
• COOLING5d [PATCH v2 08/11] rust: driver: store pointers in `DeviceId`
  2026-06-29 · Gary Guo <gary@garyguo.net>
• COOLING5d [PATCH v2 09/11] rust: driver: remove open-coded matching logic
  2026-06-29 · Gary Guo <gary@garyguo.net>
• HOTtoday [PATCH 31/32] treewide: convert rdmsrq() from a macro to an inline function
  2026-06-29 · Juergen Gross <jgross@suse.com>
• HOTtoday [PATCH 04/32] acpi: Stop using 32-bit MSR interfaces
  2026-06-29 · Juergen Gross <jgross@suse.com>
• WARM3d [PATCH v5 2/2] cpufreq: CPPC: add autonomous mode boot parameter support
  2026-06-23 · Sumit Gupta <sumitg@nvidia.com>
• COLD15d [PATCH 05/10] rust: driver: centralize device ID handling
  2026-06-18 · Gary Guo <gary@garyguo.net>
• COLD15d [PATCH 07/10] rust: driver: store pointers in `DeviceId`
  2026-06-18 · Gary Guo <gary@garyguo.net>
• WARM3d [PATCH v5] ACPI: CPPC: Add ospm_nominal_perf support
  2026-06-15 · Sumit Gupta <sumitg@nvidia.com>
• COLD30d [PATCH 8/8] x86/msr: Switch all callers of wrmsrq_safe_on_cpu() to use wrmsr_safe_on_cpu()
  2026-06-05 · Juergen Gross <jgross@suse.com>
• COLD30d [PATCH 6/8] x86/msr: Switch all callers of rdmsrq_safe_on_cpu() to use rdmsr_safe_on_cpu()
  2026-06-05 · Juergen Gross <jgross@suse.com>
• COLD34d [PATCH] ACPI: CPPC: Add helper to get effective guaranteed performance
  2026-05-29 · Xueqin Luo <hidden>
• COOLING7d [PATCH 05/16] ACPI: pad: Use sysfs_emit() for idlecpus show
  2026-05-28 · Yury Norov <hidden>
• COOLING12d [PATCH v4 2/2] cpufreq: CPPC: add autonomous mode boot parameter support
  2026-05-27 · Sumit Gupta <sumitg@nvidia.com>
• COLD26d [PATCH v4 2/2] ACPI: CPPC: Add ospm_nominal_perf support
  2026-05-27 · Sumit Gupta <sumitg@nvidia.com>
• COLD26d REVIEWED: 2 (1M) [PATCH v4 1/2] ACPI: CPPC: Add support for CPPC v4
  2026-05-27 · Sumit Gupta <sumitg@nvidia.com>
• COLD19d Re: [PATCH v3 2/2] ACPI: CPPC: Add ospm_nominal_perf support
  2026-05-21 · Pierre Gondois <pierre.gondois@arm.com>
• COLD24d [PATCH 10/11] treewide: Manually convert custom kernel_param_ops .get callbacks
  2026-05-21 · Kees Cook <kees@kernel.org>
• COLD24d [PATCH 09/11] treewide: Convert custom kernel_param_ops .get callbacks to seq_buf via cocci
  2026-05-21 · Kees Cook <kees@kernel.org>
• COLD24d [PATCH 04/11] treewide: Convert struct kernel_param_ops initializers to DEFINE_KERNEL_PARAM_OPS
  2026-05-21 · Kees Cook <kees@kernel.org>
• COLD38d REVIEWED: 4 (4M) [PATCH v3 2/4] ACPI: CPPC: Refactor boost ratio handling
  2026-05-14 · Mario Limonciello <mario.limonciello@amd.com>
• COLD38d REVIEWED: 4 (4M) [PATCH v3 1/4] ACPI: CPPC: Add support for reading HighestFreq
  2026-05-14 · Mario Limonciello <mario.limonciello@amd.com>
• COLD19d [PATCH v3 2/2] ACPI: CPPC: Add ospm_nominal_perf support
  2026-05-14 · Sumit Gupta <sumitg@nvidia.com>
• COLD19d REVIEWED: 2 (1M) [PATCH v3 1/2] ACPI: CPPC: Add support for CPPC v4
  2026-05-14 · Sumit Gupta <sumitg@nvidia.com>
• COLD57d [PATCH v2 2/5] ACPI: CPPC: Add support for reading HighestFreq
  2026-05-04 · Mario Limonciello <mario.limonciello@amd.com>
• COLD57d [PATCH v2 1/5] Revert "ACPI: CPPC: Adjust debug messages in amd_set_max_freq_ratio() to warn"
  2026-05-04 · Mario Limonciello <mario.limonciello@amd.com>
• COLD57d [PATCH v2 3/5] ACPI: CPPC: Refactor boost ratio handling
  2026-05-04 · Mario Limonciello <mario.limonciello@amd.com>
• COLD51d [PATCH v2 2/2] ACPI: CPPC: Add ospm_nominal_perf support
  2026-04-30 · Sumit Gupta <sumitg@nvidia.com>
• COLD51d REVIEWED: 1 (0M) [PATCH v2 1/2] ACPI: CPPC: Add support for CPPC v4
  2026-04-30 · Sumit Gupta <sumitg@nvidia.com>
• STALE68d [PATCH RFC 08/11] x86/msr: Switch all callers of wrmsrq_safe_on_cpu() to use wrmsr_safe_on_cpu()
  2026-04-28 · Juergen Gross <jgross@suse.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.

• DORMANTno replies REVIEWED: 5 (5M) Re: [PATCH v2] ACPI: CPPC: Move reference performance to capabilities
  2026-03-10 · Nathan Chancellor <nathan@kernel.org> · 1 Tested-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.

• DORMANTno replies Re: [GIT PULL] Urgent ACPI support fix for v6.18
  2025-12-09 · "lihuisong (C)" <lihuisong@huawei.com>
• STALE159d [PATCH 4/4] rust: acpi: import pin_init::zeroed() from ffi
  2026-01-26 · Alice Ryhl <aliceryhl@google.com>
• STALE149d [PATCH v7 1/7] ACPI: CPPC: Add cppc_get_perf() API to read performance controls
  2026-01-29 · Sumit Gupta <sumitg@nvidia.com>
• STALE149d [PATCH v7 3/7] ACPI: CPPC: Extend cppc_set_epp_perf() for FFH/SystemMemory
  2026-01-29 · Sumit Gupta <sumitg@nvidia.com>
• STALE149d [PATCH v7 5/7] ACPI: CPPC: add APIs and sysfs interface for perf_limited
  2026-01-29 · Sumit Gupta <sumitg@nvidia.com>
• DORMANTno replies [PATCH] ACPI: CPPC: Move reference performance to capabilities
  2026-01-29 · Pengjie Zhang <hidden>
• STALE68d [PATCH 3/6] ACPI: CPPC: Add support for reading HighestFreq
  2026-04-27 · "Mario Limonciello (AMD)" <superm1@kernel.org>
• STALE68d [PATCH 4/6] ACPI: CPPC: Refactor boost ratio handling
  2026-04-27 · "Mario Limonciello (AMD)" <superm1@kernel.org>
• STALE68d [PATCH RFC 06/11] x86/msr: Switch all callers of rdmsrq_safe_on_cpu() to use rdmsr_safe_on_cpu()
  2026-04-28 · Juergen Gross <jgross@suse.com>
• STALE68d [PATCH RFC 08/11] x86/msr: Switch all callers of wrmsrq_safe_on_cpu() to use wrmsr_safe_on_cpu()
  2026-04-28 · Juergen Gross <jgross@suse.com>