linux-kernel - [GIT PULL] Power management updates for v6.16-rc2

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Message-ID: <CAJZ5v0jYie5HkuPkRiWrvaG3szhVO2HyHbN5=D0KQsNjrwMzZQ@mail.gmail.com>
Date: Fri, 13 Jun 2025 22:15:17 +0200
From: "Rafael J. Wysocki" <rafael@...nel.org>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Linux PM <linux-pm@...r.kernel.org>, 
	ACPI Devel Maling List <linux-acpi@...r.kernel.org>, 
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, "the arch/x86 maintainers" <x86@...nel.org>
Subject: [GIT PULL] Power management updates for v6.16-rc2

Hi Linus,

Please pull from the tag

 git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git \
 pm-6.16-rc2

with top-most commit dd3581853c5f190c3a7bd1de78f5ecb2905a77a7

 Merge branch 'pm-cpuidle'

on top of commit 19272b37aa4f83ca52bdf9c16d5d81bdd1354494

 Linux 6.16-rc1

to receive power management updates for 6.16-rc2.

These fix the cpupower utility installation, fix up the recently added
Rust abstractions for cpufreq and OPP, restore the x86 update
eliminating mwait_play_dead_cpuid_hint() that has been reverted during
the 6.16 merge
window along with preventing the failure caused by it from happening, and
clean up mwait_idle_with_hints() usage in intel_idle:

 - Implement CpuId Rust abstraction and use it to fix doctest failure
   related to the recently introduced cpumask abstraction (Viresh Kumar).

 - Do minor cleanups in the `# Safety` sections for cpufreq abstractions
   added recently (Viresh Kumar).

 - Unbreak cpupower systemd service units installation on some systems
   by adding a unitdir variable for specifying the location to install
   them (Francesco Poli).

 - Eliminate mwait_play_dead_cpuid_hint() again after reverting its
   elimination during the 6.16 merge window due to a problem with
   handling "dead" SMT siblings, but this time prevent leaving them in
   C1 after initialization by taking them online and back offline when
   a proper cpuidle driver for the platform has been registered (Rafael
   Wysocki).

 - Update data types of variables passed as arguments to
   mwait_idle_with_hints() to match the function definition
   after recent changes (Uros Bizjak).

Thanks!


---------------

Francesco Poli (wintermute) (1):
      cpupower: split unitdir from libdir in Makefile

Rafael J. Wysocki (5):
      intel_idle: Use subsys_initcall_sync() for initialization
      x86/smp: PM/hibernate: Split arch_resume_nosmt()
      intel_idle: Rescan "dead" SMT siblings during initialization
      ACPI: processor: Rescan "dead" SMT siblings during initialization
      Reapply "x86/smp: Eliminate mwait_play_dead_cpuid_hint()"

Uros Bizjak (1):
      intel_idle: Update arguments of mwait_idle_with_hints()

Viresh Kumar (4):
      cpufreq: Convert `/// SAFETY` lines to `# Safety` sections
      rust: cpu: Introduce CpuId abstraction
      rust: Use CpuId in place of raw CPU numbers
      rust: cpu: Add CpuId::current() to retrieve current CPU ID

---------------

 MAINTAINERS                     |   1 +
 arch/x86/kernel/smp.c           |  24 ++++++
 arch/x86/kernel/smpboot.c       |  54 ++-----------
 arch/x86/power/hibernate.c      |  19 ++---
 drivers/acpi/internal.h         |   6 ++
 drivers/acpi/processor_driver.c |   3 +
 drivers/acpi/processor_idle.c   |   8 ++
 drivers/cpufreq/rcpufreq_dt.rs  |   4 +-
 drivers/idle/intel_idle.c       |  12 +--
 include/linux/cpu.h             |   3 +
 rust/helpers/cpu.c              |   8 ++
 rust/helpers/helpers.c          |   1 +
 rust/kernel/cpu.rs              | 125 ++++++++++++++++++++++++++++-
 rust/kernel/cpufreq.rs          | 173 +++++++++++++++++++++++++++++-----------
 rust/kernel/cpumask.rs          |  51 ++++++++----
 tools/power/cpupower/Makefile   |   9 ++-
 16 files changed, 368 insertions(+), 133 deletions(-)