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)

• HOTtoday [PATCH 00/32] x86/msr: Drop 32-bit MSR interfaces
  2026-06-29 06:08 · 1 reply in 7d · Juergen Gross <jgross@suse.com>

Recent patches

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

• HOTtoday [PATCH 31/32] treewide: convert rdmsrq() from a macro to an inline function
  2026-06-29 · Juergen Gross <jgross@suse.com>
• COLD27d [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>
• COLD28d [PATCH v7 17/23] tools: power: acpi: Append extra cflags
  2026-06-02 · Leo Yan <leo.yan@arm.com>
• COOLING5d [PATCH 05/16] ACPI: pad: Use sysfs_emit() for idlecpus show
  2026-05-28 · Yury Norov <hidden>
• STALE65d [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>
• STALE63d REVIEWED: 1 (1M) [PATCH RESEND v10 3/8] RISC-V: ACPI: Add acpi_get_cpu_uid() for unified ACPI CPU UID retrieval
  2026-04-01 · Chengwen Feng <hidden>
• STALE63d REVIEWED: 1 (1M) [PATCH RESEND v10 7/8] ACPI: PPTT: Use acpi_get_cpu_uid() and remove get_acpi_id_for_cpu()
  2026-04-01 · Chengwen Feng <hidden>
• STALE63d REVIEWED: 1 (1M) [PATCH RESEND v10 5/8] ACPI: Centralize acpi_get_cpu_uid() declaration in include/linux/acpi.h
  2026-04-01 · Chengwen Feng <hidden>
• STALE63d REVIEWED: 8 (8M) [PATCH RESEND v10 4/8] x86/acpi: Add acpi_get_cpu_uid() for unified ACPI CPU UID retrieval
  2026-04-01 · Chengwen Feng <hidden>
• STALE101d [PATCH v6 16/24] tools: power: acpi: Append extra cflags
  2026-03-23 · Leo Yan <leo.yan@arm.com>
• STALE92d REVIEWED: 1 (1M) [PATCH v10 7/8] ACPI: PPTT: Use acpi_get_cpu_uid() and remove get_acpi_id_for_cpu()
  2026-03-20 · Chengwen Feng <hidden>
• STALE92d REVIEWED: 8 (8M) [PATCH v10 4/8] x86/acpi: Add acpi_get_cpu_uid() for unified ACPI CPU UID retrieval
  2026-03-20 · Chengwen Feng <hidden>
• STALE92d REVIEWED: 1 (1M) [PATCH v10 5/8] ACPI: Centralize acpi_get_cpu_uid() declaration in include/linux/acpi.h
  2026-03-20 · Chengwen Feng <hidden>
• STALE92d REVIEWED: 1 (1M) [PATCH v10 3/8] RISC-V: ACPI: Add acpi_get_cpu_uid() for unified ACPI CPU UID retrieval
  2026-03-20 · Chengwen Feng <hidden>
• STALE103d REVIEWED: 1 (1M) [PATCH v9 5/7] ACPI: Centralize acpi_get_cpu_uid() declaration in include/linux/acpi.h
  2026-03-19 · Chengwen Feng <hidden>
• STALE103d REVIEWED: 1 (1M) [PATCH v9 6/7] ACPI: PPTT: Use acpi_get_cpu_uid() and remove get_acpi_id_for_cpu()
  2026-03-19 · Chengwen Feng <hidden>
• STALE103d REVIEWED: 1 (1M) [PATCH v9 3/7] riscv/acpi: Add acpi_get_cpu_uid() implementation and update users
  2026-03-19 · Chengwen Feng <hidden>
• STALE103d REVIEWED: 1 (1M) [PATCH v9 4/7] x86/acpi: Add acpi_get_cpu_uid() implementation and update Xen users
  2026-03-19 · Chengwen Feng <hidden>
• STALE101d [PATCH v5 18/26] tools: power: acpi: Append extra cflags
  2026-03-18 · Leo Yan <leo.yan@arm.com>
• STALE105d REVIEWED: 1 (1M) [PATCH v8 2/3] x86: Implement acpi_get_cpu_uid()
  2026-03-18 · Chengwen Feng <hidden>
• STALE105d REVIEWED: 1 (1M) [PATCH v8 1/3] ACPI: Refactor get_acpi_id_for_cpu() to acpi_get_cpu_uid() on non-x86
  2026-03-18 · Chengwen Feng <hidden>
• STALE106d REVIEWED: 1 (1M) [PATCH v7 1/3] ACPI: Refactor get_acpi_id_for_cpu() to acpi_get_cpu_uid() on non-x86
  2026-03-13 · Chengwen Feng <hidden>
• STALE106d REVIEWED: 1 (1M) [PATCH v7 2/3] x86: Implement acpi_get_cpu_uid()
  2026-03-13 · Chengwen Feng <hidden>
• STALE111d [PATCH v6 2/3] x86: Implement acpi_get_cpu_uid()
  2026-03-12 · Chengwen Feng <hidden>
• STALE111d REVIEWED: 1 (1M) [PATCH v6 1/3] ACPI: Rename get_acpi_id_for_cpu() to acpi_get_cpu_uid() on non-x86
  2026-03-12 · Chengwen Feng <hidden>
• STALE102d [PATCH v4 21/30] tools: power: acpi: Append extra cflags
  2026-03-11 · Leo Yan <leo.yan@arm.com>
• STALE113d REVIEWED: 1 (1M) [PATCH v5 1/2] ACPI: Rename get_acpi_id_for_cpu() to acpi_get_cpu_acpi_id() on non-x86
  2026-03-10 · Chengwen Feng <hidden>
• STALE114d [PATCH v4 1/2] ACPI: Rename get_acpi_id_for_cpu() to acpi_get_cpu_acpi_id() on non-x86
  2026-03-09 · Chengwen Feng <hidden>
• STALE114d [PATCH v3 20/30] tools: power: acpi: Append extra cflags
  2026-03-08 · Leo Yan <leo.yan@arm.com>
• STALE114d [PATCH v3] PCI/TPH: Fix get cpu steer-tag fail on ARM64 platform
  2026-03-06 · Chengwen Feng <hidden>

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.

• STALE105d REVIEWED: 1 (1M) [PATCH v8 2/3] x86: Implement acpi_get_cpu_uid()
  2026-03-18 · Chengwen Feng <hidden> · 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.

• STALE107d [PATCH v6 01/16] ACPI/AEST: Parse the AEST table
  2026-01-22 · Ruidong Tian <hidden>
• STALE102d [PATCH v4 21/30] tools: power: acpi: Append extra cflags
  2026-03-11 · Leo Yan <leo.yan@arm.com>
• STALE101d [PATCH v5 18/26] tools: power: acpi: Append extra cflags
  2026-03-18 · Leo Yan <leo.yan@arm.com>
• STALE101d [PATCH v6 16/24] tools: power: acpi: Append extra cflags
  2026-03-23 · Leo Yan <leo.yan@arm.com>
• STALE65d [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>