Merge tag 'pm-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management updates from Rafael Wysocki:
"There are quite a few interesting things here, including

Merge tag 'pm-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management updates from Rafael Wysocki:
"There are quite a few interesting things here, including new hardware
support, new features, some bug fixes and documentation updates. In
addition, there are a usual bunch of minor fixes and cleanups all
over.

In the new hardware support category, there are intel_pstate and
intel_rapl driver updates to support new processors, Panther Lake,
Wildcat Lake, Noval Lake, and Diamond Rapids in the OOB mode, OPP and
bandwidth allocation support in the tegra186 cpufreq driver, and
JH7110S SOC support in dt-platdev cpufreq.

The new features are the PM QoS CPU latency limit for suspend-to-idle,
the netlink support for the energy model management, support for
terminating system suspend via a wakeup event during the sync of file
systems, configurable number of hibernation compression threads, the
runtime PM auto-cleanup macros, and the "poweroff" PM event that is
expected to be used during system shutdown.

Bugs are mostly fixed in cpuidle governors, but there are also fixes
elsewhere, like in the amd-pstate cpufreq driver.

Documentation updates include, but are not limited to, a new doc on
debugging shutdown hangs, cross-referencing fixes and cleanups in the
intel_pstate documentation, and updates of comments in the core
hibernation code.

Specifics:

- Introduce and document a QoS limit on CPU exit latency during
wakeup from suspend-to-idle (Ulf Hansson)

- Add support for building libcpupower statically (Zuo An)

- Add support for sending netlink notifications to user space on
energy model updates (Changwoo Mini, Peng Fan)

- Minor improvements to the Rust OPP interface (Tamir Duberstein)

- Fixes to scope-based pointers in the OPP library (Viresh Kumar)

- Use residency threshold in polling state override decisions in the
menu cpuidle governor (Aboorva Devarajan)

- Add sanity check for exit latency and target residency in the
cpufreq core (Rafael Wysocki)

- Use this_cpu_ptr() where possible in the teo governor (Christian
Loehle)

- Rework the handling of tick wakeups in the teo cpuidle governor to
increase the likelihood of stopping the scheduler tick in the cases
when tick wakeups can be counted as non-timer ones (Rafael Wysocki)

- Fix a reverse condition in the teo cpuidle governor and drop a
misguided target residency check from it (Rafael Wysocki)

- Clean up multiple minor defects in the teo cpuidle governor (Rafael
Wysocki)

- Update header inclusion to make it follow the Include What You Use
principle (Andy Shevchenko)

- Enable MSR-based RAPL PMU support in the intel_rapl power capping
driver and arrange for using it on the Panther Lake and Wildcat
Lake processors (Kuppuswamy Sathyanarayanan)

- Add support for Nova Lake and Wildcat Lake processors to the
intel_rapl power capping driver (Kaushlendra Kumar, Srinivas
Pandruvada)

- Add OPP and bandwidth support for Tegra186 (Aaron Kling)

- Optimizations for parameter array handling in the amd-pstate
cpufreq driver (Mario Limonciello)

- Fix for mode changes with offline CPUs in the amd-pstate cpufreq
driver (Gautham Shenoy)

- Preserve freq_table_sorted across suspend/hibernate in the cpufreq
core (Zihuan Zhang)

- Adjust energy model rules for Intel hybrid platforms in the
intel_pstate cpufreq driver and improve printing of debug messages
in it (Rafael Wysocki)

- Replace deprecated strcpy() in cpufreq_unregister_governor()
(Thorsten Blum)

- Fix duplicate hyperlink target errors in the intel_pstate cpufreq
driver documentation and use :ref: directive for internal linking
in it (Swaraj Gaikwad, Bagas Sanjaya)

- Add Diamond Rapids OOB mode support to the intel_pstate cpufreq
driver (Kuppuswamy Sathyanarayanan)

- Use mutex guard for driver locking in the intel_pstate driver and
eliminate some code duplication from it (Rafael Wysocki)

- Replace udelay() with usleep_range() in ACPI cpufreq (Kaushlendra
Kumar)

- Minor improvements to various cpufreq drivers (Christian Marangi,
Hal Feng, Jie Zhan, Marco Crivellari, Miaoqian Lin, and Shuhao Fu)

- Replace snprintf() with scnprintf() in show_trace_dev_match()
(Kaushlendra Kumar)

- Fix memory allocation error handling in pm_vt_switch_required()
(Malaya Kumar Rout)

- Introduce CALL_PM_OP() macro and use it to simplify code in generic
PM operations (Kaushlendra Kumar)

- Add module param to backtrace all CPUs in the device power
management watchdog (Sergey Senozhatsky)

- Rework message printing in swsusp_save() (Rafael Wysocki)

- Make it possible to change the number of hibernation compression
threads (Xueqin Luo)

- Clarify that only cgroup1 freezer uses PM freezer (Tejun Heo)

- Add document on debugging shutdown hangs to PM documentation and
correct a mistaken configuration option in it (Mario Limonciello)

- Shut down wakeup source timer before removing the wakeup source
from the list (Kaushlendra Kumar, Rafael Wysocki)

- Introduce new PMSG_POWEROFF event for system shutdown handling with
the help of PM device callbacks (Mario Limonciello)

- Make pm_test delay interruptible by wakeup events (Riwen Lu)

- Clean up kernel-doc comment style usage in the core hibernation
code and remove unuseful comments from it (Sunday Adelodun, Rafael
Wysocki)

- Add support for handling wakeup events and aborting the suspend
process while it is syncing file systems (Samuel Wu, Rafael
Wysocki)

- Add WQ_UNBOUND to pm_wq workqueue (Marco Crivellari)

- Add runtime PM wrapper macros for ACQUIRE()/ACQUIRE_ERR() and use
them in the PCI core and the ACPI TAD driver (Rafael Wysocki)

- Improve runtime PM in the ACPI TAD driver (Rafael Wysocki)

- Update pm_runtime_allow/forbid() documentation (Rafael Wysocki)

- Fix typos in runtime.c comments (Malaya Kumar Rout)

- Move governor.h from devfreq under include/linux/ and rename to
devfreq-governor.h to allow devfreq governor definitions in out of
drivers/devfreq/ (Dmitry Baryshkov)

- Use min() to improve readability in tegra30-devfreq.c (Thorsten
Blum)

- Fix potential use-after-free issue of OPP handling in
hisi_uncore_freq.c (Pengjie Zhang)

- Fix typo in DFSO_DOWNDIFFERENTIAL macro name in
governor_simpleondemand.c in devfreq (Riwen Lu)"

* tag 'pm-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (96 commits)
PM / devfreq: Fix typo in DFSO_DOWNDIFFERENTIAL macro name
cpuidle: Warn instead of bailing out if target residency check fails
cpuidle: Update header inclusion
Documentation: power/cpuidle: Document the CPU system wakeup latency QoS
cpuidle: Respect the CPU system wakeup QoS limit for cpuidle
sched: idle: Respect the CPU system wakeup QoS limit for s2idle
pmdomain: Respect the CPU system wakeup QoS limit for cpuidle
pmdomain: Respect the CPU system wakeup QoS limit for s2idle
PM: QoS: Introduce a CPU system wakeup QoS limit
cpuidle: governors: teo: Add missing space to the description
PM: hibernate: Extra cleanup of comments in swap handling code
PM / devfreq: tegra30: use min to simplify actmon_cpu_to_emc_rate
PM / devfreq: hisi: Fix potential UAF in OPP handling
PM / devfreq: Move governor.h to a public header location
powercap: intel_rapl: Enable MSR-based RAPL PMU support
powercap: intel_rapl: Prepare read_raw() interface for atomic-context callers
cpufreq: qcom-nvmem: fix compilation warning for qcom_cpufreq_ipq806x_match_list
PM: sleep: Call pm_sleep_fs_sync() instead of ksys_sync_helper()
PM: sleep: Add support for wakeup during filesystem sync
cpufreq: ACPI: Replace udelay() with usleep_range()
...

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Merge branches 'pm-em' and 'pm-opp'

Merge energy model management updates and operating performance points
(OPP) library changes for 6.19-rc1:

- Add support for sending netlink notifications to us

Merge branches 'pm-em' and 'pm-opp'

Merge energy model management updates and operating performance points
(OPP) library changes for 6.19-rc1:

- Add support for sending netlink notifications to user space on energy
model updates (Changwoo Mini, Peng Fan)

- Minor improvements to the Rust OPP interface (Tamir Duberstein)

- Fixes to scope-based pointers in the OPP library (Viresh Kumar)

* pm-em:
PM: EM: Add to em_pd_list only when no failure
PM: EM: Notify an event when the performance domain changes
PM: EM: Implement em_notify_pd_created/updated()
PM: EM: Implement em_notify_pd_deleted()
PM: EM: Implement em_nl_get_pd_table_doit()
PM: EM: Implement em_nl_get_pds_doit()
PM: EM: Add an iterator and accessor for the performance domain
PM: EM: Add a skeleton code for netlink notification
PM: EM: Add em.yaml and autogen files
PM: EM: Expose the ID of a performance domain via debugfs
PM: EM: Assign a unique ID when creating a performance domain

* pm-opp:
rust: opp: simplify callers of `to_c_str_array`
OPP: Initialize scope-based pointers inline
rust: opp: fix broken rustdoc link

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PM: EM: Implement em_notify_pd_created/updated()

Implement two event notifications when a performance domain is created
(EM_CMD_PD_CREATED) and updated (EM_CMD_PD_UPDATED). The message format
of the

PM: EM: Implement em_notify_pd_created/updated()

Implement two event notifications when a performance domain is created
(EM_CMD_PD_CREATED) and updated (EM_CMD_PD_UPDATED). The message format
of these two event notifications is the same as EM_CMD_GET_PD_TABLE --
containing the performance domain's ID and its energy model table.

Signed-off-by: Changwoo Min <changwoo@igalia.com>
Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>
Link: https://patch.msgid.link/20251020220914.320832-10-changwoo@igalia.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

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PM: EM: Implement em_notify_pd_deleted()

Add the event notification infrastructure and implement the event
notification for when a performance domain is deleted (EM_CMD_PD_DELETED).

The event conta

PM: EM: Implement em_notify_pd_deleted()

Add the event notification infrastructure and implement the event
notification for when a performance domain is deleted (EM_CMD_PD_DELETED).

The event contains the ID of the performance domain (EM_A_PD_TABLE_PD_ID)
so the userspace can identify the changed performance domain for further
processing.

Signed-off-by: Changwoo Min <changwoo@igalia.com>
Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>
Link: https://patch.msgid.link/20251020220914.320832-9-changwoo@igalia.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

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PM: EM: Add an iterator and accessor for the performance domain

Add an iterator function (for_each_em_perf_domain) that iterates all the
performance domains in the global list. A passed callback fun

PM: EM: Add an iterator and accessor for the performance domain

Add an iterator function (for_each_em_perf_domain) that iterates all the
performance domains in the global list. A passed callback function (cb) is
called for each performance domain.

Additionally, add a lookup function (em_perf_domain_get_by_id) that
searches for a performance domain by matching the ID in the global list.

Signed-off-by: Changwoo Min <changwoo@igalia.com>
Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>
Link: https://patch.msgid.link/20251020220914.320832-6-changwoo@igalia.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

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PM: EM: Add a skeleton code for netlink notification

Add a boilerplate code for netlink notification to register the new
protocol family. Also, initialize and register the netlink during booting.
Th

PM: EM: Add a skeleton code for netlink notification

Add a boilerplate code for netlink notification to register the new
protocol family. Also, initialize and register the netlink during booting.
The initialization is called at the postcore level, which is late enough
after the generic netlink is initialized.

Finally, update MAINTAINERS to include new files.

Signed-off-by: Changwoo Min <changwoo@igalia.com>
Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>
Link: https://patch.msgid.link/20251020220914.320832-5-changwoo@igalia.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

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