linux-kernel - [GIT PULL] Power management fixes for v6.17-rc4

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Message-ID: <CAJZ5v0j-OGp-djCo7m8Y92v1FOPTYbPp4tw_d1N4jyS_4gfgFA@mail.gmail.com>
Date: Thu, 11 Sep 2025 14:54:48 +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>, 
	Mario Limonciello <mario.limonciello@....com>
Subject: [GIT PULL] Power management fixes for v6.17-rc4

Hi Linus,

Please pull from the tag

 git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git \
 pm-6.17-rc6

with top-most commit bddce1c7a5ab3ec2dd0fc404f4155c0c17e847b2

 Merge branches 'pm-sleep' and 'pm-em'

on top of commit 76eeb9b8de9880ca38696b2fb56ac45ac0a25c6c

 Linux 6.17-rc5

to receive power management fixes for 6.17-rc6.

These fix a nasty hibernation regression introduced during the 6.16
cycle, an issue related to energy model management occurring on Intel
hybrid systems where some CPUs are offline to start with, and two
regressions in the amd-pstate driver:

 - Restore a pm_restrict_gfp_mask() call in hibernation_snapshot() that
   was removed incorrectly during the 6.16 development cycle (Rafael
   Wysocki)

 - Introduce a function for registering a perf domain without triggering
   a system-wide CPU capacity update and make the intel_pstate driver
   use it to avoid recurring unsuccessful attempts to update capacities
   of all CPUs in the system (Rafael Wysocki)

 - Fix setting of CPPC.min_perf in the active mode with performance
   governor in the amd-pstate driver to restore its expected behavior
   changed recently (Gautham Shenoy)

 - Avoid mistakenly setting EPP to 0 in the amd-pstate driver after
   system resume as a result of recent code changes (Mario Limonciello)

Thanks!


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

Gautham R. Shenoy (1):
      cpufreq/amd-pstate: Fix setting of CPPC.min_perf in active mode
for performance governor

Mario Limonciello (AMD) (1):
      cpufreq/amd-pstate: Fix a regression leading to EPP 0 after resume

Rafael J. Wysocki (2):
      PM: EM: Add function for registering a PD without capacity update
      PM: hibernate: Restrict GFP mask in hibernation_snapshot()

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

 drivers/cpufreq/amd-pstate.c   | 19 +++++++++++--------
 drivers/cpufreq/intel_pstate.c |  4 ++--
 include/linux/energy_model.h   | 10 ++++++++++
 kernel/power/energy_model.c    | 29 +++++++++++++++++++++++++----
 kernel/power/hibernate.c       |  1 +
 5 files changed, 49 insertions(+), 14 deletions(-)