linux/rust/kernel
Linus Torvalds d7c8087a9c Power management updates for 7.1-rc1
- 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  - Fix sysfs files being present when HW missing and broken/outdated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)
 -----BEGIN PGP SIGNATURE-----
 
 iQFGBAABCAAwFiEEcM8Aw/RY0dgsiRUR7l+9nS/U47UFAmnY9TISHHJqd0Byand5
 c29ja2kubmV0AAoJEO5fvZ0v1OO1G9gH/j5mEqfPpiwX6fQ/ZwOGdNOOPVA5w9j4
 KPHSMwMD5lZkoaZfasp2vt27KY5SOoVVvRZ2DKkFJ3Jai4I3cUPZYypga2nre1ag
 tgzX4vOjcw2r40Eda6ezWl1h4mca/xJJBX7xH2+hn1JY+Y1in37g50CqMIjKh96z
 Uugkk6UZytL1XcF55PMhIUgDf6pDtRT5UOW9xOKOkUt8FVWTJ7ei3HaWyV5kDmVq
 b5eQ42+OH7y6sWNnoKczFd8fStvh6J/avoJurBEvcOQhMcjaIaB48G19+KjDg73E
 NjrVcgG20P2rltBvV2d0J1TKskZHkaP7XjIeWfkwjGZhee3FL7ssS/g=
 =fRCO
 -----END PGP SIGNATURE-----

Merge tag 'pm-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management updates from Rafael Wysocki:
 "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)"

* tag 'pm-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (74 commits)
  cpufreq/amd-pstate: Add POWER_SUPPLY select for dynamic EPP
  cpupower: remove extern declarations in cmd functions
  cpuidle: Simplify cpuidle_register_device() with guard()
  PM / devfreq: tegra30-devfreq: add support for Tegra114
  PM / devfreq: use _visible attribute to replace create/remove_sysfs_files()
  PM / devfreq: Remove unneeded casting for HZ_PER_KHZ
  MAINTAINERS: amd-pstate: Step down as maintainer, add Prateek as reviewer
  cpufreq: Pass the policy to cpufreq_driver->adjust_perf()
  cpufreq/amd-pstate: Pass the policy to amd_pstate_update()
  cpufreq/amd-pstate-ut: Add a unit test for raw EPP
  cpufreq/amd-pstate: Add support for raw EPP writes
  cpufreq/amd-pstate: Add support for platform profile class
  cpufreq/amd-pstate: add kernel command line to override dynamic epp
  cpufreq/amd-pstate: Add dynamic energy performance preference
  Documentation: amd-pstate: fix dead links in the reference section
  cpufreq/amd-pstate: Cache the max frequency in cpudata
  Documentation/amd-pstate: Add documentation for amd_pstate_floor_{freq,count}
  Documentation/amd-pstate: List amd_pstate_prefcore_ranking sysfs file
  Documentation/amd-pstate: List amd_pstate_hw_prefcore sysfs file
  amd-pstate-ut: Add a testcase to validate the visibility of driver attributes
  ...
2026-04-13 19:47:52 -07:00
..
alloc rust: alloc: simplify with NonNull::add() now that it is stable 2026-04-07 10:00:24 +02:00
block rust: block: update const_refs_to_static MSRV TODO comment 2026-04-07 10:00:24 +02:00
debugfs Driver core changes for 7.0-rc1 2026-02-11 17:43:59 -08:00
device rust: device: replace kernel::c_str! with C-Strings 2025-12-22 17:30:24 +01:00
drm rust/drm: Fix Registration::{new,new_foreign_owned}() docs 2026-01-23 14:18:07 -05:00
fs rust: fs: add file::Offset type alias 2025-11-05 00:05:38 +01:00
io rust: io: introduce write_reg and LocatedRegister 2026-03-17 20:04:11 +01:00
iommu rust: iommu: fix srctree link warning 2026-01-22 09:19:30 +01:00
irq rust: irq: move 'static bounds to traits 2026-03-03 20:33:26 +01:00
list rust: remove RUSTC_HAS_COERCE_POINTEE and simplify code 2026-04-07 10:00:23 +02:00
mm mm: introduce VMA flags bitmap type 2025-11-29 10:41:09 -08:00
net rust: net: replace kernel::c_str! with C-Strings 2026-01-05 16:32:39 -08:00
num Driver core changes for 7.1-rc1 2026-04-13 19:03:11 -07:00
pci rust: pci: io: remove overloaded Io methods of ConfigSpace 2026-03-17 20:02:09 +01:00
ptr rust: ptr: add projection infrastructure 2026-03-07 23:06:17 +01:00
str rust: str: add radix prefixed integer parsing functions 2025-11-03 14:40:45 +01:00
sync rust: remove RUSTC_HAS_COERCE_POINTEE and simplify code 2026-04-07 10:00:23 +02:00
time hrtimer: add usage examples to documentation 2026-03-23 08:31:00 +01:00
.gitignore rust: Add warn_on macro 2025-07-23 02:05:58 +02:00
acpi.rs rust: acpi: replace core::mem::zeroed with pin_init::zeroed 2025-10-27 20:27:05 +01:00
alloc.rs Summary of significant series in this pull request: 2025-10-02 18:18:33 -07:00
auxiliary.rs Linux 6.19-rc7 2026-01-26 13:23:52 +01:00
bitmap.rs rust: bitmap: add BitmapVec::new_inline() 2025-11-26 11:25:35 -05:00
bits.rs rust: bits: always inline functions using build_assert with arguments 2026-01-18 20:40:11 +01:00
block.rs rust: block: add block related constants 2025-09-02 05:23:56 -06:00
bug.rs rust: bug: Support DEBUG_BUGVERBOSE_DETAILED option 2026-01-30 05:18:17 +01:00
build_assert.rs rust: rework build_assert! documentation 2026-03-30 02:03:52 +02:00
clk.rs rust: clk: implement Send and Sync 2026-04-03 11:57:35 +02:00
configfs.rs rust: configfs: replace kernel::c_str! with C-Strings 2026-01-15 09:26:49 +01:00
cpu.rs rust: kernel: cpu: mark CpuId::current() inline 2025-09-14 23:58:45 +02:00
cpufreq.rs cpufreq: Pass the policy to cpufreq_driver->adjust_perf() 2026-04-02 11:30:24 -05:00
cpumask.rs rust: cpumask: rename methods of Cpumask for clarity and consistency 2026-01-27 11:21:23 +05:30
cred.rs Char/Misc/IIO/Binder changes for 6.18-rc1 2025-10-04 16:26:32 -07:00
debugfs.rs rust: debugfs: Use kernel Atomic type in docs example 2026-01-19 15:02:46 +01:00
device_id.rs rust: device_id: replace incorrect word in safety documentation 2025-12-29 14:09:18 +01:00
device.rs Linux 6.19-rc7 2026-01-26 13:23:52 +01:00
devres.rs rust: devres: embed struct devres_node directly 2026-03-18 00:47:14 +01:00
dma.rs rust: dma: use pointer projection infra for dma_{read,write} macro 2026-03-07 23:06:20 +01:00
driver.rs Linux 6.19-rc7 2026-01-26 13:23:52 +01:00
error.rs rust: error: clarify that from_err_ptr can return Ok(NULL) 2026-04-03 11:56:56 +02:00
faux.rs rust: faux: use "kernel vertical" style for imports 2026-01-07 19:56:00 +01:00
firmware.rs rust: firmware: replace kernel::c_str! with C-Strings 2025-11-17 00:53:47 +01:00
fmt.rs rust: fmt: Fix grammar in Adapter description 2026-01-04 23:51:35 +01:00
fs.rs rust: fs: add Kiocb struct 2025-09-06 13:27:20 +02:00
generated_arch_reachable_asm.rs.S rust: Add warn_on macro 2025-07-23 02:05:58 +02:00
generated_arch_static_branch_asm.rs.S rust: jump_label: skip formatting generated file 2024-11-20 13:32:42 -05:00
generated_arch_warn_asm.rs.S rust: Add warn_on macro 2025-07-23 02:05:58 +02:00
i2c.rs rust: i2c: Update ARef and AlwaysRefCounted imports to use sync::aref 2026-03-15 20:30:29 +01:00
id_pool.rs rust: id_pool: do not immediately acquire new ids 2025-12-02 14:17:09 -05:00
impl_flags.rs rust: add impl_flags! macro for defining common bitflag operations 2026-02-02 08:09:11 +01:00
init.rs rust: init: use #[default_error(err)] for the initializer macros 2026-01-17 10:51:42 +01:00
io.rs rust: io: introduce write_reg and LocatedRegister 2026-03-17 20:04:11 +01:00
ioctl.rs rust: start using the #[expect(...)] attribute 2024-10-07 21:39:57 +02:00
iov.rs rust: iov: add iov_iter abstractions for ITER_DEST 2025-09-06 13:27:20 +02:00
irq.rs rust: irq: add support for threaded IRQs and handlers 2025-08-12 20:22:09 +02:00
jump_label.rs rust: jump_label: skip formatting generated file 2024-11-20 13:32:42 -05:00
kunit.rs rust: kunit: fix warning when !CONFIG_PRINTK 2026-03-02 10:01:15 -07:00
lib.rs Driver core changes for 7.1-rc1 2026-04-13 19:03:11 -07:00
list.rs rust: list: hide macros from top-level kernel doc 2026-03-27 12:15:47 +01:00
maple_tree.rs rust: maple_tree: rcu_read_lock() in destructor to silence lockdep 2025-12-23 11:23:15 -08:00
miscdevice.rs rust: redefine bindings::compat_ptr_ioctl in Rust 2026-01-16 14:54:11 +01:00
mm.rs rust: mm: update ARef and AlwaysRefCounted imports from sync::aref 2025-09-13 16:55:15 -07:00
module_param.rs Modules changes for v6.19-rc1 2025-12-06 08:27:07 -08:00
net.rs
num.rs rust: num: add Bounded integer wrapping type 2025-11-19 00:22:24 +01:00
of.rs rust: of: use core::ffi::CStr method names 2025-09-16 09:26:59 +02:00
opp.rs Rust changes for v6.19 2025-12-03 14:16:49 -08:00
page.rs rust: Return Option from page_align and ensure no usize overflow 2025-12-29 15:32:53 +01:00
pci.rs rust: pci: re-export ConfigSpace 2026-02-01 22:18:24 +01:00
pid_namespace.rs rust: pid_namespace: update AlwaysRefCounted imports from sync::aref 2025-08-19 13:08:41 +02:00
platform.rs Linux 6.19-rc7 2026-01-26 13:23:52 +01:00
prelude.rs rust: remove RUSTC_HAS_SLICE_AS_FLATTENED and simplify code 2026-04-07 10:00:23 +02:00
print.rs rust: print: Add pr_*_once macros 2026-01-30 05:47:05 +01:00
processor.rs rust: Add cpu_relax() helper 2025-08-21 16:58:07 +02:00
ptr.rs Rust timekeeping changes for v7.1 2026-04-08 10:44:11 +02:00
pwm.rs rust: pwm: Simplify to_result call sites and unsafe blocks 2026-01-20 18:49:58 +01:00
rbtree.rs Rust changes for v6.20 / v7.0 2026-02-10 11:53:01 -08:00
regulator.rs rust: regulator: do not assume that regulator_get() returns non-null 2026-03-24 13:08:21 +00:00
revocable.rs Rust changes for v6.17 2025-08-03 13:49:10 -07:00
safety.rs rust: safety: introduce unsafe_precondition_assert! macro 2026-02-02 08:10:48 +01:00
scatterlist.rs rust: scatterlist: Update ARef imports to use sync::aref 2025-12-18 17:25:45 +01:00
security.rs rust_binder: add Rust Binder driver 2025-09-19 09:40:46 +02:00
seq_file.rs rust: seq_file: replace kernel::c_str! with C-Strings 2026-01-29 15:32:40 +01:00
sizes.rs rust: sizes: add SizeConstants trait for device address space constants 2026-04-07 12:57:50 +02:00
soc.rs rust: Add soc_device support 2025-12-28 12:43:56 +01:00
std_vendor.rs rust: convert raw URLs to Markdown autolinks in comments 2025-05-12 00:20:25 +02:00
str.rs Rust timekeeping changes for v7.1 2026-04-08 10:44:11 +02:00
sync.rs rust: sync: Replace kernel::c_str! with C-Strings 2026-01-28 09:25:44 +01:00
task.rs rust: task: use as_char_ptr instead of as_ptr().cast() 2026-03-10 23:52:21 +01:00
time.rs rust: time: make ClockSource unsafe trait 2026-03-23 08:29:48 +01:00
tracepoint.rs rust: add tracepoint support 2024-11-04 16:21:44 -05:00
transmute.rs rust: transmute: simplify code with Rust 1.80.0 split_at_*checked() 2026-04-07 10:00:24 +02:00
types.rs rust: types: remove temporary re-exports of ARef and AlwaysRefCounted 2026-03-15 20:30:29 +01:00
uaccess.rs rust: uaccess: add UserSliceWriter::write_slice_file() 2025-11-05 00:35:37 +01:00
usb.rs rust: usb: Update AlwaysRefCounted imports to use sync::aref 2026-03-15 20:30:29 +01:00
workqueue.rs rust: pin-init: add pin projections to #[pin_data] 2025-09-11 23:26:20 +02:00
xarray.rs rust: kernel: mark as #[inline] all From::from()s for Error 2026-03-27 12:49:00 +01:00