linux-kernel - [GIT PULL] Power management fixes for v6.15-rc3

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Message-ID: <CAJZ5v0gpDf9mBFGRjnrU8LaPzc0foCeGhzTkOu1FwooyGFzSzg@mail.gmail.com>
Date: Fri, 18 Apr 2025 21:32:54 +0200
From: "Rafael J. Wysocki" <rafael@...nel.org>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Linux PM <linux-pm@...r.kernel.org>, 
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, Viresh Kumar <viresh.kumar@...aro.org>, 
	Mario Limonciello <mario.limonciello@....com>
Subject: [GIT PULL] Power management fixes for v6.15-rc3

Hi Linus,

Please pull from the tag

 git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git \
 pm-6.15-rc3

with top-most commit f3b25a1b48191048e2f190d878fc3175fc08ffaa

 Merge branch 'pm-docs'

on top of commit 8ffd015db85fea3e15a77027fda6c02ced4d2444

 Linux 6.15-rc2

to receive power management fixes for 6.15-rc3.

These are mostly cpufreq fixes, some of which address recent regressions
and some address older issues that have come to light during the last
two weeks, and a runtime PM documentation correction:

 - Fix the performance-to-frequency scaling factor computation on
   systems using HWP in the intel_pstate driver after a recent incorrect
   update of it (Rafael Wysocki).

 - Fix the usage of the CPUFREQ_NEED_UPDATE_LIMITS cpufreq driver flag
   in the schedutil cpufreq governor after a recent update of it that
   has caused frequency limits changes to be missed sometimes (Rafael
   Wysocki).

 - Address some recently discovered synchronization issues related to
   frequency limits changes in the schedutil cpufreq governor and in
   the cpufreq core (Rafael Wysocki).

 - Fix ITMT support in the amd-pstate cpufreq driver so that it is
   enabled after asym priorities have been correctly initialized for
   all CPUs (K Prateek Nayak).

 - Fix changing min/max limits in the amd-pstate cpufreq driver while
   on the performance governor (Dhananjay Ugwekar).

 - Fix a function name in the runtime PM documentation that was
   previously incorrectly updated by mistake (Sakari Ailus).

Thanks!


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

Dhananjay Ugwekar (1):
      cpufreq/amd-pstate: Fix min_limit perf and freq updation for
performance governor

K Prateek Nayak (1):
      cpufreq/amd-pstate: Enable ITMT support after initializing core rankings

Rafael J. Wysocki (5):
      cpufreq: intel_pstate: Fix hwp_get_cpu_scaling()
      cpufreq/sched: Fix the usage of CPUFREQ_NEED_UPDATE_LIMITS
      cpufreq/sched: Explicitly synchronize limits_changed flag handling
      cpufreq/sched: Set need_freq_update in ignore_dl_rate_limit()
      cpufreq: Avoid using inconsistent policy->min and policy->max

Sakari Ailus (1):
      Documentation: PM: runtime: Fix a reference to pm_runtime_autosuspend()

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

 Documentation/power/runtime_pm.rst |  2 +-
 drivers/cpufreq/amd-pstate.c       | 36 ++++++++++++----------------
 drivers/cpufreq/cpufreq.c          | 32 +++++++++++++++++++------
 drivers/cpufreq/intel_pstate.c     |  2 +-
 kernel/sched/cpufreq_schedutil.c   | 49 ++++++++++++++++++++++++++++++++------
 5 files changed, 84 insertions(+), 37 deletions(-)