[GIT PULL] Power management updates for v7.1-rc1
From: Rafael J. Wysocki
Date: Fri Apr 10 2026 - 10:29:36 EST
Hi Linus,
This goes early because I will be traveling next week.
Please pull from the tag
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git \
pm-7.1-rc1
with top-most commit d923f70e37310fe613883a3a4c2ea2f31246253b
Merge branch 'pm-devfreq'
on top of commit 591cd656a1bf5ea94a222af5ef2ee76df029c1d2
Linux 7.0-rc7
to receive power management updates for 7.1-rc1.
Once again, cpufreq is the most active development area, mostly because
of the new feature additions and documentation updates in the amd-pstate
driver, but there are also changes in the cpufreq core related to boost
support and other assorted updates elsewhere.
Next up are power capping changes due to the major cleanup of the Intel
RAPL driver.
On the cpuidle front, a new C-states table for Intel Panther Lake is
added to the intel_idle driver, the stopped tick handling in the menu
and teo governors is updated, and there are a couple of cleanups.
Apart from the above, support for Tegra114 is added to devfreq and
there are assorted cleanups of that code, there are also two updates
of the operating performance points (OPP) library, two minor updates
related to hibernation, and cpupower utility man pages updates and
cleanups.
Specifics:
- Update qcom-hw DT bindings to include Eliza hardware (Abel Vesa)
- Update cpufreq-dt-platdev blocklist (Faruque Ansari)
- Minor updates to driver and dt-bindings for Tegra (Thierry Reding,
Rosen Penev)
- Add MAINTAINERS entry for CPPC driver (Viresh Kumar)
- Add support for new features: CPPC performance priority, Dynamic EPP,
Raw EPP, and new unit tests for them to amd-pstate (Gautham Shenoy,
Mario Limonciello)
- Fix sysfs files being present when HW missing and broken/outdated
documentation in the amd-pstate driver (Ninad Naik, Gautham Shenoy)
- Pass the policy to cpufreq_driver->adjust_perf() to avoid using
cpufreq_cpu_get() in the .adjust_perf() callback in amd-pstate which
leads to a scheduling-while-atomic bug (K Prateek Nayak)
- Clean up dead code in Kconfig for cpufreq (Julian Braha)
- Remove max_freq_req update for pre-existing cpufreq policy and add a
boost_freq_req QoS request to save the boost constraint instead of
overwriting the last scaling_max_freq constraint (Pierre Gondois)
- Embed cpufreq QoS freq_req objects in cpufreq policy so they all
are allocated in one go along with the policy to simplify lifetime
rules and avoid error handling issues (Viresh Kumar)
- Use DMI max speed when CPPC is unavailable in the acpi-cpufreq
scaling driver (Henry Tseng)
- Switch policy_is_shared() in cpufreq to using cpumask_nth() instead
of cpumask_weight() because the former is more efficient (Yury Norov)
- Use sysfs_emit() in sysfs show functions for cpufreq governor
attributes (Thorsten Blum)
- Update intel_pstate to stop returning an error when "off" is written
to its status sysfs attribute while the driver is already off (Fabio
De Francesco)
- Include current frequency in the debug message printed by
__cpufreq_driver_target() (Pengjie Zhang)
- Refine stopped tick handling in the menu cpuidle governor and
rearrange stopped tick handling in the teo cpuidle governor (Rafael
Wysocki)
- Add Panther Lake C-states table to the intel_idle driver (Artem
Bityutskiy)
- Clean up dead dependencies on CPU_IDLE in Kconfig (Julian Braha)
- Simplify cpuidle_register_device() with guard() (Huisong Li)
- Use performance level if available to distinguish between rates in
OPP debugfs (Manivannan Sadhasivam)
- Fix scoped_guard in dev_pm_opp_xlate_required_opp() (Viresh Kumar)
- Return -ENODATA if the snapshot image is not loaded (Alberto Garcia)
- Remove inclusion of crypto/hash.h from hibernate_64.c on x86 (Eric
Biggers)
- Clean up and rearrange the intel_rapl power capping driver to make
the respective interface drivers (TPMI, MSR, and MMOI) hold their
own settings and primitives and consolidate PL4 and PMU support
flags into rapl_defaults (Kuppuswamy Sathyanarayanan)
- Correct kernel-doc function parameter names in the power capping core
code (Randy Dunlap)
- Remove unneeded casting for HZ_PER_KHZ in devfreq (Andy Shevchenko)
- Use _visible attribute to replace create/remove_sysfs_files() in
devfreq (Pengjie Zhang)
- Add Tegra114 support to activity monitor device in tegra30-devfreq as
a preparation to upcoming EMC controller support (Svyatoslav Ryhel)
- Fix mistakes in cpupower man pages, add the boost and epp options to
the cpupower-frequency-info man page, and add the perf-bias option to
the cpupower-info man page (Roberto Ricci)
- Remove unnecessary extern declarations from getopt.h in arguments
parsing functions in cpufreq-set, cpuidle-info, cpuidle-set,
cpupower-info, and cpupower-set utilities (Kaushlendra Kumar)
Thanks!
---------------
Abel Vesa (1):
dt-bindings: cpufreq: qcom-hw: document Eliza cpufreq hardware
Alberto Garcia (1):
PM: hibernate: return -ENODATA if the snapshot image is not loaded
Andy Shevchenko (1):
PM / devfreq: Remove unneeded casting for HZ_PER_KHZ
Artem Bityutskiy (1):
intel_idle: Add Panther Lake C-states table
Eric Biggers (1):
PM: hibernate: x86: Remove inclusion of crypto/hash.h
Fabio M. De Francesco (1):
cpufreq: intel_pstate: Allow repeated intel_pstate disable
Faruque Ansari (1):
cpufreq: Add QCS8300 to cpufreq-dt-platdev blocklist
Gautham R. Shenoy (13):
amd-pstate: Fix memory leak in amd_pstate_epp_cpu_init()
amd-pstate: Update cppc_req_cached in fast_switch case
amd-pstate: Make certain freq_attrs conditionally visible
x86/cpufeatures: Add AMD CPPC Performance Priority feature.
amd-pstate: Add support for CPPC_REQ2 and FLOOR_PERF
amd-pstate: Add sysfs support for floor_freq and floor_count
amd-pstate: Introduce a tracepoint trace_amd_pstate_cppc_req2()
amd-pstate-ut: Add module parameter to select testcases
amd-pstate-ut: Add a testcase to validate the visibility of
driver attributes
Documentation/amd-pstate: List amd_pstate_hw_prefcore sysfs file
Documentation/amd-pstate: List amd_pstate_prefcore_ranking sysfs file
Documentation/amd-pstate: Add documentation for
amd_pstate_floor_{freq,count}
MAINTAINERS: amd-pstate: Step down as maintainer, add Prateek as reviewer
Henry Tseng (1):
cpufreq: acpi-cpufreq: use DMI max speed when CPPC is unavailable
Huisong Li (1):
cpuidle: Simplify cpuidle_register_device() with guard()
Julian Braha (2):
cpufreq: clean up dead code in Kconfig
cpuidle: clean up dead dependencies on CPU_IDLE in Kconfig
K Prateek Nayak (2):
cpufreq/amd-pstate: Pass the policy to amd_pstate_update()
cpufreq: Pass the policy to cpufreq_driver->adjust_perf()
Kaushlendra Kumar (1):
cpupower: remove extern declarations in cmd functions
Kuppuswamy Sathyanarayanan (18):
powercap: intel_rapl: Add a symbol namespace for intel_rapl exports
powercap: intel_rapl: Cleanup coding style
powercap: intel_rapl: Remove unused TIME_WINDOW macros
powercap: intel_rapl: Simplify rapl_compute_time_window_atom()
powercap: intel_rapl: Use shifts for power-of-2 operations
powercap: intel_rapl: Use GENMASK() and BIT() macros
powercap: intel_rapl: Use unit conversion macros from units.h
powercap: intel_rapl: Allow interface drivers to configure rapl_defaults
powercap: intel_rapl: Move TPMI default settings into TPMI
interface driver
thermal: intel: int340x: processor: Move RAPL defaults to MMIO driver
powercap: intel_rapl: Remove unused AVERAGE_POWER primitive
powercap: intel_rapl: Move MSR default settings into MSR interface driver
powercap: intel_rapl: Remove unused macro definitions
powercap: intel_rapl: Move primitive info to header for interface drivers
powercap: intel_rapl: Move TPMI primitives to TPMI driver
thermal: intel: int340x: processor: Move MMIO primitives to MMIO driver
powercap: intel_rapl: Move MSR primitives to MSR driver
powercap: intel_rapl: Consolidate PL4 and PMU support flags into
rapl_defaults
Manivannan Sadhasivam (1):
OPP: debugfs: Use performance level if available to distinguish
between rates
Mario Limonciello (AMD) (7):
cpufreq/amd-pstate: Add POWER_SUPPLY select for dynamic EPP
cpufreq/amd-pstate: Cache the max frequency in cpudata
cpufreq/amd-pstate: Add dynamic energy performance preference
cpufreq/amd-pstate: add kernel command line to override dynamic epp
cpufreq/amd-pstate: Add support for platform profile class
cpufreq/amd-pstate: Add support for raw EPP writes
cpufreq/amd-pstate-ut: Add a unit test for raw EPP
Ninad Naik (1):
Documentation: amd-pstate: fix dead links in the reference section
Pengjie Zhang (2):
cpufreq: Add debug print for current frequency in
__cpufreq_driver_target()
PM / devfreq: use _visible attribute to replace
create/remove_sysfs_files()
Pierre Gondois (2):
cpufreq: Remove max_freq_req update for pre-existing policy
cpufreq: Add boost_freq_req QoS request
Rafael J. Wysocki (2):
cpuidle: governors: menu: Refine stopped tick handling
cpuidle: governors: teo: Rearrange stopped tick handling
Randy Dunlap (1):
powercap: correct kernel-doc function parameter names
Roberto Ricci (4):
cpupower-idle-info.1: fix short option names
cpupower-frequency-info.1: use the proper name of the --perf option
cpupower-frequency-info.1: document --boost and --epp options
cpupower-info.1: describe the --perf-bias option
Rosen Penev (1):
cpufreq: tegra194: remove COMPILE_TEST
Svyatoslav Ryhel (1):
PM / devfreq: tegra30-devfreq: add support for Tegra114
Thierry Reding (2):
dt-bindings: arm: nvidia: Document the Tegra238 CCPLEX cluster
cpufreq: tegra194: Rename Tegra239 to Tegra238
Thorsten Blum (1):
cpufreq: governor: Use sysfs_emit() in sysfs show functions
Viresh Kumar (3):
OPP: Move break out of scoped_guard in dev_pm_opp_xlate_required_opp()
cpufreq: Add MAINTAINERS entry for CPPC driver
cpufreq: Allocate QoS freq_req objects with policy
Yury Norov (1):
cpufreq: optimize policy_is_shared()
---------------
Documentation/admin-guide/kernel-parameters.txt | 7 +
Documentation/admin-guide/pm/amd-pstate.rst | 87 ++-
.../arm/tegra/nvidia,tegra-ccplex-cluster.yaml | 1 +
.../bindings/cpufreq/cpufreq-qcom-hw.yaml | 1 +
MAINTAINERS | 25 +-
arch/x86/include/asm/cpufeatures.h | 2 +-
arch/x86/include/asm/msr-index.h | 5 +
arch/x86/kernel/cpu/scattered.c | 1 +
arch/x86/power/hibernate_64.c | 2 -
drivers/acpi/cppc_acpi.c | 3 +-
drivers/cpufreq/Kconfig | 5 +-
drivers/cpufreq/Kconfig.arm | 2 +-
drivers/cpufreq/Kconfig.x86 | 14 +
drivers/cpufreq/acpi-cpufreq.c | 31 +-
drivers/cpufreq/amd-pstate-trace.h | 35 ++
drivers/cpufreq/amd-pstate-ut.c | 279 ++++++++-
drivers/cpufreq/amd-pstate.c | 627 ++++++++++++++++++---
drivers/cpufreq/amd-pstate.h | 37 +-
drivers/cpufreq/cppc_cpufreq.c | 10 +-
drivers/cpufreq/cpufreq-dt-platdev.c | 1 +
drivers/cpufreq/cpufreq.c | 85 ++-
drivers/cpufreq/cpufreq_governor.h | 5 +-
drivers/cpufreq/intel_pstate.c | 6 +-
drivers/cpufreq/tegra194-cpufreq.c | 4 +-
drivers/cpuidle/Kconfig | 2 +-
drivers/cpuidle/Kconfig.mips | 2 +-
drivers/cpuidle/Kconfig.powerpc | 2 -
drivers/cpuidle/cpuidle.c | 12 +-
drivers/cpuidle/governors/gov.h | 5 +
drivers/cpuidle/governors/menu.c | 15 +-
drivers/cpuidle/governors/teo.c | 81 ++-
drivers/devfreq/devfreq.c | 108 ++--
drivers/devfreq/tegra30-devfreq.c | 17 +-
drivers/idle/intel_idle.c | 42 ++
drivers/opp/core.c | 2 +-
drivers/opp/debugfs.c | 20 +-
drivers/powercap/intel_rapl_common.c | 565 ++-----------------
drivers/powercap/intel_rapl_msr.c | 393 ++++++++++++-
drivers/powercap/intel_rapl_tpmi.c | 101 ++++
.../intel/int340x_thermal/processor_thermal_rapl.c | 81 +++
include/acpi/cppc_acpi.h | 1 +
include/linux/cpufreq.h | 11 +-
include/linux/intel_rapl.h | 52 +-
include/linux/powercap.h | 4 +-
include/linux/units.h | 3 +
kernel/power/user.c | 7 +-
kernel/sched/cpufreq_schedutil.c | 5 +-
rust/kernel/cpufreq.rs | 13 +-
tools/arch/x86/include/asm/cpufeatures.h | 2 +-
tools/power/cpupower/man/cpupower-frequency-info.1 | 8 +-
tools/power/cpupower/man/cpupower-idle-info.1 | 4 +-
tools/power/cpupower/man/cpupower-info.1 | 9 +-
tools/power/cpupower/utils/cpufreq-info.c | 2 -
tools/power/cpupower/utils/cpufreq-set.c | 2 -
tools/power/cpupower/utils/cpuidle-info.c | 2 -
tools/power/cpupower/utils/cpuidle-set.c | 2 -
tools/power/cpupower/utils/cpupower-info.c | 2 -
tools/power/cpupower/utils/cpupower-set.c | 2 -
58 files changed, 1951 insertions(+), 903 deletions(-)