- Support atomic PWMs in the PWM clk driver
- clk_hw_get_dev() and clk_hw_get_of_node() helpers
* clk-bindings: (30 commits)
dt-bindings: clock: convert lpc1850-cgu.txt to yaml format
dt-bindings: clock: Convert qca,ath79-pll to DT schema
dt-bindings: clock: Convert nuvoton,npcm750-clk to DT schema
dt-bindings: clock: Convert moxa,moxart-clock to DT schema
dt-bindings: clock: Convert microchip,pic32mzda-clk to DT schema
dt-bindings: clock: Convert maxim,max9485 to DT schema
dt-bindings: clock: Convert qcom,krait-cc to DT schema
dt-bindings: clock: qcom: Remove double colon from description
dt-bindings: clock: convert lpc1850-ccu.txt to yaml format
dt-bindings: clock: Convert alphascale,asm9260-clock-controller to DT schema
dt-bindings: clock: Convert marvell,armada-370-corediv-clock to DT schema
dt-bindings: clock: Convert marvell,armada-3700-periph-clock to DT schema
dt-bindings: clock: Convert marvell,mvebu-core-clock to DT schema
dt-bindings: clock: Convert marvell,berlin2-clk to DT schema
dt-bindings: clock: Convert marvell,dove-divider-clock to DT schema
dt-bindings: clock: Convert marvell,armada-3700-tbg-clock to DT schema
dt-bindings: clock: Convert marvell-armada-370-gating-clock to DT schema
dt-bindings: clock: Convert marvell,armada-xp-cpu-clock to DT schema
dt-bindings: clock: Convert TI-NSPIRE clocks to DT schema
dt-bindings: clock: Convert lsi,axm5516-clks to DT schema
...
* clk-cleanup: (29 commits)
clk: clocking-wizard: Fix the round rate handling for versal
clk: Fix typos
clk: tegra: periph: Make tegra_clk_periph_ops static
clk: tegra: periph: Fix error handling and resolve unsigned compare warning
clk: imx: scu: convert from round_rate() to determine_rate()
clk: imx: pllv4: convert from round_rate() to determine_rate()
clk: imx: pllv3: convert from round_rate() to determine_rate()
clk: imx: pllv2: convert from round_rate() to determine_rate()
clk: imx: pll14xx: convert from round_rate() to determine_rate()
clk: imx: pfd: convert from round_rate() to determine_rate()
clk: imx: frac-pll: convert from round_rate() to determine_rate()
clk: imx: fracn-gppll: convert from round_rate() to determine_rate()
clk: imx: fixup-div: convert from round_rate() to determine_rate()
clk: imx: cpu: convert from round_rate() to determine_rate()
clk: imx: busy: convert from round_rate() to determine_rate()
clk: imx: composite-93: remove round_rate() in favor of determine_rate()
clk: imx: composite-8m: remove round_rate() in favor of determine_rate()
clk: bcm: bcm2835: convert from round_rate() to determine_rate()
MAINTAINERS: Include clk.py under COMMON CLK FRAMEWORK entry
clk: ti: Simplify ti_find_clock_provider()
...
* clk-pwm:
clk: pwm: Make use of non-sleeping PWMs
clk: pwm: Don't reconfigure running PWM at probe time
clk: pwm: Convert to use pwm_apply_might_sleep()
clk: pwm: Let .get_duty_cycle() return the real duty cycle
* clk-hw-device:
clk: tests: add clk_hw_get_dev() and clk_hw_get_of_node() tests
clk: tests: Make clk_register_clk_parent_data_device_driver() common
clk: add a clk_hw helpers to get the clock device or device_node
* clk-xilinx:
clk: xilinx: vcu: Update vcu init/reset sequence
clk: xilinx: vcu: unregister pll_post only if registered correctly
* clk-adi:
clk: clk-axi-clkgen: fix coding style issues
clk: clk-axi-clkgen move to min/max()
clk: clk-axi-clkgen: detect axi_clkgen_limits at runtime
include: adi-axi-common: add new helper macros
include: linux: move adi-axi-common.h out of fpga
clk: clk-axi-clkgen: make sure to include mod_devicetable.h
clk: clk-axi-clkgen: fix fpfd_max frequency for zynq
Pull driver core updates from Danilo Krummrich:
"debugfs:
- Remove unneeded debugfs_file_{get,put}() instances
- Remove last remnants of debugfs_real_fops()
- Allow storing non-const void * in struct debugfs_inode_info::aux
sysfs:
- Switch back to attribute_group::bin_attrs (treewide)
- Switch back to bin_attribute::read()/write() (treewide)
- Constify internal references to 'struct bin_attribute'
Support cache-ids for device-tree systems:
- Add arch hook arch_compact_of_hwid()
- Use arch_compact_of_hwid() to compact MPIDR values on arm64
Rust:
- Device:
- Introduce CoreInternal device context (for bus internal methods)
- Provide generic drvdata accessors for bus devices
- Provide Driver::unbind() callbacks
- Use the infrastructure above for auxiliary, PCI and platform
- Implement Device::as_bound()
- Rename Device::as_ref() to Device::from_raw() (treewide)
- Implement fwnode and device property abstractions
- Implement example usage in the Rust platform sample driver
- Devres:
- Remove the inner reference count (Arc) and use pin-init instead
- Replace Devres::new_foreign_owned() with devres::register()
- Require T to be Send in Devres<T>
- Initialize the data kept inside a Devres last
- Provide an accessor for the Devres associated Device
- Device ID:
- Add support for ACPI device IDs and driver match tables
- Split up generic device ID infrastructure
- Use generic device ID infrastructure in net::phy
- DMA:
- Implement the dma::Device trait
- Add DMA mask accessors to dma::Device
- Implement dma::Device for PCI and platform devices
- Use DMA masks from the DMA sample module
- I/O:
- Implement abstraction for resource regions (struct resource)
- Implement resource-based ioremap() abstractions
- Provide platform device accessors for I/O (remap) requests
- Misc:
- Support fallible PinInit types in Revocable
- Implement Wrapper<T> for Opaque<T>
- Merge pin-init blanket dependencies (for Devres)
Misc:
- Fix OF node leak in auxiliary_device_create()
- Use util macros in device property iterators
- Improve kobject sample code
- Add device_link_test() for testing device link flags
- Fix typo in Documentation/ABI/testing/sysfs-kernel-address_bits
- Hint to prefer container_of_const() over container_of()"
* tag 'driver-core-6.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core: (84 commits)
rust: io: fix broken intra-doc links to `platform::Device`
rust: io: fix broken intra-doc link to missing `flags` module
rust: io: mem: enable IoRequest doc-tests
rust: platform: add resource accessors
rust: io: mem: add a generic iomem abstraction
rust: io: add resource abstraction
rust: samples: dma: set DMA mask
rust: platform: implement the `dma::Device` trait
rust: pci: implement the `dma::Device` trait
rust: dma: add DMA addressing capabilities
rust: dma: implement `dma::Device` trait
rust: net::phy Change module_phy_driver macro to use module_device_table macro
rust: net::phy represent DeviceId as transparent wrapper over mdio_device_id
rust: device_id: split out index support into a separate trait
device: rust: rename Device::as_ref() to Device::from_raw()
arm64: cacheinfo: Provide helper to compress MPIDR value into u32
cacheinfo: Add arch hook to compress CPU h/w id into 32 bits for cache-id
cacheinfo: Set cache 'id' based on DT data
container_of: Document container_of() is not to be used in new code
driver core: auxiliary bus: fix OF node leak
...
Pull char / misc / IIO / other driver updates from Greg KH:
"Here is the big set of char/misc/iio and other smaller driver
subsystems for 6.17-rc1. It's a big set this time around, with the
huge majority being in the iio subsystem with new drivers and dts
files being added there.
Highlights include:
- IIO driver updates, additions, and changes making more code const
and cleaning up some init logic
- bus_type constant conversion changes
- misc device test functions added
- rust miscdevice minor fixup
- unused function removals for some drivers
- mei driver updates
- mhi driver updates
- interconnect driver updates
- Android binder updates and test infrastructure added
- small cdx driver updates
- small comedi fixes
- small nvmem driver updates
- small pps driver updates
- some acrn virt driver fixes for printk messages
- other small driver updates
All of these have been in linux-next with no reported issues"
* tag 'char-misc-6.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (292 commits)
binder: Use seq_buf in binder_alloc kunit tests
binder: Add copyright notice to new kunit files
misc: ti_fpc202: Switch to of_fwnode_handle()
bus: moxtet: Use dev_fwnode()
pc104: move PC104 option to drivers/Kconfig
drivers: virt: acrn: Don't use %pK through printk
comedi: fix race between polling and detaching
interconnect: qcom: Add Milos interconnect provider driver
dt-bindings: interconnect: document the RPMh Network-On-Chip Interconnect in Qualcomm Milos SoC
mei: more prints with client prefix
mei: bus: use cldev in prints
bus: mhi: host: pci_generic: Add Telit FN990B40 modem support
bus: mhi: host: Detect events pointing to unexpected TREs
bus: mhi: host: pci_generic: Add Foxconn T99W696 modem
bus: mhi: host: Use str_true_false() helper
bus: mhi: host: pci_generic: Add support for EM929x and set MRU to 32768 for better performance.
bus: mhi: host: Fix endianness of BHI vector table
bus: mhi: host: pci_generic: Disable runtime PM for QDU100
bus: mhi: host: pci_generic: Fix the modem name of Foxconn T99W640
dt-bindings: interconnect: qcom,msm8998-bwmon: Allow 'nonposted-mmio'
...
Pull regulator updates from Mark Brown:
"The big change in this release is the addition of Rust bindings from
Daniel Almeida, allowing fairly basic consumer use with support for
enable and voltage setting operations. This should be good for the
vast majority of consumers.
Otherwise it's been quite quiet, a few new devices supported, plus
some cleanups and fixes.
Summary:
- Basic Rust bindings
- A fix for making large voltage changes on regulators where we limit
the size of voltage change we will do in one step, previously we
just got as close as we could in one step
- Cleanups of our usage of the PM autosuspend functions, this pulls
in some PM core changes on a shared tag
- Mode setting support for PCA9450
- Support for Mediatek MT6893 and MT8196 DVFSRC, Qualcomm PM7550 and
PMR735B, Raspberry Pi displays and TI TPS652G1
The TI driver pulls in the MFD portion of the support for the device
and the pinctrl driver which was in the same tag"
* tag 'regulator-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (40 commits)
regulator: mt6370: Fix spelling mistake in mt6370_regualtor_register
regulator: Kconfig: Fix spelling mistake "regualtor" -> "regulator"
regulator: core: repeat voltage setting request for stepped regulators
regulator: rt6160: Add rt6166 vout min_uV setting for compatible
MAINTAINERS: add regulator.rs to the regulator API entry
rust: regulator: add a bare minimum regulator abstraction
regulator: tps6286x-regulator: Fix a copy & paste error
regulator: qcom-rpmh: add support for pm7550 regulators
regulator: qcom-rpmh: add support for pmr735b regulators
regulator: dt-bindings: qcom,rpmh: Add PMR735B compatible
regulator: dt-bindings: qcom,rpmh: Add PM7550 compatible
regulator: tps6594-regulator: Add TI TPS652G1 PMIC regulators
regulator: tps6594-regulator: refactor variant descriptions
regulator: tps6594-regulator: remove hardcoded buck config
regulator: tps6594-regulator: remove interrupt_count
dt-bindings: mfd: ti,tps6594: Add TI TPS652G1 PMIC
pinctrl: pinctrl-tps6594: Add TPS652G1 PMIC pinctrl and GPIO
misc: tps6594-pfsm: Add TI TPS652G1 PMIC PFSM
mfd: tps6594: Add TI TPS652G1 support
regulator: sy8827n: make enable gpio NONEXCLUSIVE
...
Pull power management updates from Rafael Wysocki:
"As is tradition, cpufreq is the part with the largest number of
updates that include core fixes and cleanups as well as updates of
several assorted drivers, but there are also quite a few updates
related to system sleep, mostly focused on asynchronous suspend and
resume of devices and on making the integration of system suspend
and resume with runtime PM easier.
Runtime PM is also updated to allow some code duplication in drivers
to be eliminated going forward and to work more consistently overall
in some cases.
Apart from that, there are some driver core updates related to PM
domains that should help to address ordering issues with devm_ cleanup
routines relying on PM domains, some assorted devfreq updates
including core fixes and cleanups, tooling updates, and documentation
and MAINTAINERS updates.
Specifics:
- Fix two initialization ordering issues in the cpufreq core and a
governor initialization error path in it, and clean it up (Lifeng
Zheng)
- Add Granite Rapids support in no-HWP mode to the intel_pstate
cpufreq driver (Li RongQing)
- Make intel_pstate always use HWP_DESIRED_PERF when operating in the
passive mode (Rafael Wysocki)
- Allow building the tegra124 cpufreq driver as a module (Aaron
Kling)
- Do minor cleanups for Rust cpufreq and cpumask APIs and fix
MAINTAINERS entry for cpu.rs (Abhinav Ananthu, Ritvik Gupta, Lukas
Bulwahn)
- Clean up assorted cpufreq drivers (Arnd Bergmann, Dan Carpenter,
Krzysztof Kozlowski, Sven Peter, Svyatoslav Ryhel, Lifeng Zheng)
- Add the NEED_UPDATE_LIMITS flag to the CPPC cpufreq driver
(Prashant Malani)
- Fix minimum performance state label error in the amd-pstate driver
documentation (Shouye Liu)
- Add the CPUFREQ_GOV_STRICT_TARGET flag to the userspace cpufreq
governor and explain HW coordination influence on it in the
documentation (Shashank Balaji)
- Fix opencoded for_each_cpu() in idle_state_valid() in the DT
cpuidle driver (Yury Norov)
- Remove info about non-existing QoS interfaces from the PM QoS
documentation (Ulf Hansson)
- Use c_* types via kernel prelude in Rust for OPP (Abhinav Ananthu)
- Add HiSilicon uncore frequency scaling driver to devfreq (Jie Zhan)
- Allow devfreq drivers to add custom sysfs ABIs (Jie Zhan)
- Simplify the sun8i-a33-mbus devfreq driver by using more devm
functions (Uwe Kleine-König)
- Fix an index typo in trans_stat() in devfreq (Chanwoo Choi)
- Check devfreq governor before using governor->name (Lifeng Zheng)
- Remove a redundant devfreq_get_freq_range() call from
devfreq_add_device() (Lifeng Zheng)
- Limit max_freq with scaling_min_freq in devfreq (Lifeng Zheng)
- Replace sscanf() with kstrtoul() in set_freq_store() (Lifeng Zheng)
- Extend the asynchronous suspend and resume of devices to handle
suppliers like parents and consumers like children (Rafael Wysocki)
- Make pm_runtime_force_resume() work for drivers that set the
DPM_FLAG_SMART_SUSPEND flag and allow PCI drivers and drivers that
collaborate with the general ACPI PM domain to set it (Rafael
Wysocki)
- Add kernel parameter to disable asynchronous suspend/resume of
devices (Tudor Ambarus)
- Drop redundant might_sleep() calls from some functions in the
device suspend/resume core code (Zhongqiu Han)
- Fix the handling of monitors connected right before waking up the
system from sleep (tuhaowen)
- Clean up MAINTAINERS entries for suspend and hibernation (Rafael
Wysocki)
- Fix error code path in the KEXEC_JUMP flow and drop a redundant
pm_restore_gfp_mask() call from it (Rafael Wysocki)
- Rearrange suspend/resume error handling in the core device suspend
and resume code (Rafael Wysocki)
- Fix up white space that does not follow coding style in the
hibernation core code (Darshan Rathod)
- Document return values of suspend-related API functions in the
runtime PM framework (Sakari Ailus)
- Mark last busy stamp in multiple autosuspend-related functions in
the runtime PM framework and update its documentation (Sakari
Ailus)
- Take active children into account in pm_runtime_get_if_in_use() for
consistency (Rafael Wysocki)
- Fix NULL pointer dereference in get_pd_power_uw() in the dtpm_cpu
power capping driver (Sivan Zohar-Kotzer)
- Add support for the Bartlett Lake platform to the Intel RAPL power
capping driver (Qiao Wei)
- Add PL4 support for Panther Lake to the intel_rapl_msr power
capping driver (Zhang Rui)
- Update contact information in the PM ABI docs and maintainer
information in the power domains DT binding (Rafael Wysocki)
- Update PM header inclusions to follow the IWYU (Include What You
Use) principle (Andy Shevchenko)
- Add flags to specify power on attach/detach for PM domains, make
the driver core detach PM domains in device_unbind_cleanup(), and
drop the dev_pm_domain_detach() call from the platform bus type
(Claudiu Beznea)
- Improve Python binding's Makefile for cpupower (John B. Wyatt IV)
- Fix printing of CORE, CPU fields in cpupower-monitor (Gautham
Shenoy)"
* tag 'pm-6.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (75 commits)
cpufreq: CPPC: Mark driver with NEED_UPDATE_LIMITS flag
PM: docs: Use my kernel.org address in ABI docs and DT bindings
PM: hibernate: Fix up white space that does not follow coding style
PM: sleep: Rearrange suspend/resume error handling in the core
Documentation: amd-pstate:fix minimum performance state label error
PM: runtime: Take active children into account in pm_runtime_get_if_in_use()
kexec_core: Drop redundant pm_restore_gfp_mask() call
kexec_core: Fix error code path in the KEXEC_JUMP flow
PM: sleep: Clean up MAINTAINERS entries for suspend and hibernation
drivers: cpufreq: add Tegra114 support
rust: cpumask: Replace `MaybeUninit` and `mem::zeroed` with `Opaque` APIs
cpufreq: Exit governor when failed to start old governor
cpufreq: Move the check of cpufreq_driver->get into cpufreq_verify_current_freq()
cpufreq: Init policy->rwsem before it may be possibly used
cpufreq: Initialize cpufreq-based frequency-invariance later
cpufreq: Remove duplicate check in __cpufreq_offline()
cpufreq: Contain scaling_cur_freq.attr in cpufreq_attrs
cpufreq: intel_pstate: Add Granite Rapids support in no-HWP mode
cpufreq: intel_pstate: Always use HWP_DESIRED_PERF in passive mode
PM / devfreq: Add HiSilicon uncore frequency scaling driver
...
Pull vfs rust updates from Christian Brauner:
- Allow poll_table pointers to be NULL
- Add Rust files to vfs MAINTAINERS entry
* tag 'vfs-6.17-rc1.rust' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
vfs: add Rust files to MAINTAINERS
poll: rust: allow poll_table ptrs to be null
Add warn_on macro, uses the BUG/WARN feature (lib/bug.c) via assembly
for x86_64/arm64/riscv.
The current Rust code simply wraps BUG() macro but doesn't provide the
proper debug information. The BUG/WARN feature can only be used from
assembly.
This uses the assembly code exported by the C side via ARCH_WARN_ASM
macro. To avoid duplicating the assembly code, this approach follows
the same strategy as the static branch code: it generates the assembly
code for Rust using the C preprocessor at compile time.
Similarly, ARCH_WARN_REACHABLE is also used at compile time to
generate the assembly code; objtool's reachable annotation code. It's
used for only architectures that use objtool.
For now, Loongarch and arm just use a wrapper for WARN macro.
UML doesn't use the assembly BUG/WARN feature; just wrapping generic
BUG/WARN functions implemented in C works.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@gmail.com>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Link: https://lore.kernel.org/r/20250502094537.231725-5-fujita.tomonori@gmail.com
[ Avoid evaluating the condition twice (a good idea in general,
but it also matches the C side). Simplify with `as_char_ptr()`
to avoid a cast. Cast to `ffi` integer types for
`warn_slowpath_fmt`. Avoid cast for `null()`. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Merge a cpuidle update, a PM QoS update, devfreq updates, and an OPP
(operating performance points) update for 6.17-rc1:
- Fix opencoded for_each_cpu() in idle_state_valid() in the DT cpuidle
driver (Yury Norov)
- Remove info about non-existing QoS interfaces from the PM QoS
documentation (Ulf Hansson)
- Use c_* types via kernel prelude in Rust for OPP (Abhinav Ananthu)
- Add HiSilicon uncore frequency scaling driver to devfreq (Jie Zhan)
- Allow devfreq drivers to add custom sysfs ABIs (Jie Zhan)
- Simplify the sun8i-a33-mbus devfreq driver by using more devm
functions (Uwe Kleine-König)
- Fix an index typo in trans_stat() in devfreq (Chanwoo Choi)
- Check devfreq governor before using governor->name (Lifeng Zheng)
- Remove a redundant devfreq_get_freq_range() call from
devfreq_add_device() (Lifeng Zheng)
- Limit max_freq with scaling_min_freq in devfreq (Lifeng Zheng)
- Replace sscanf() with kstrtoul() in set_freq_store() (Lifeng Zheng)
* pm-cpuidle:
cpuidle: dt: fix opencoded for_each_cpu() in idle_state_valid()
* pm-qos:
Documentation: power: Remove info about non-existing QoS interfaces
* pm-devfreq:
PM / devfreq: Add HiSilicon uncore frequency scaling driver
PM / devfreq: Allow devfreq driver to add custom sysfs ABIs
PM / devfreq: sun8i-a33-mbus: Simplify by using more devm functions
PM / devfreq: Fix a index typo in trans_stat
PM / devfreq: Check governor before using governor->name
PM / devfreq: Remove redundant devfreq_get_freq_range() calling in devfreq_add_device()
PM / devfreq: Limit max_freq with scaling_min_freq
PM / devfreq: governor: Replace sscanf() with kstrtoul() in set_freq_store()
* pm-opp:
rust: opp: use c_* types via kernel prelude
Move the definitions of `ARef` and `AlwaysRefCounted` from `types.rs`
to a new file `sync/aref.rs`. Define the corresponding `aref` module
under `rust/kernel/sync.rs`. These types are better grouped in `sync`.
To avoid breaking existing imports, they are re-exported from `types.rs`.
Drop unused imports `mem::ManuallyDrop`, `ptr::NonNull` from `types.rs`,
they are now only used in `sync/aref.rs`, where they are already imported.
Suggested-by: Benno Lossin <lossin@kernel.org>
Link: https://github.com/Rust-for-Linux/linux/issues/1173
Signed-off-by: Shankari Anand <shankari.ak0208@gmail.com>
Reviewed-by: Benno Lossin <lossin@kernel.org>
Link: https://lore.kernel.org/r/20250715110423.334744-1-shankari.ak0208@gmail.com
[ Added missing `///`. Changed module title. Reworded slightly. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
There is no `mod flags` in this case, unlike others. Instead, they are
associated constants for the `Flags` type.
Thus reword the sentence to fix the broken intra-doc link, providing
an example of constant and linking to it to clarify which ones we are
referring to.
Fixes: 493fc33ec2 ("rust: io: add resource abstraction")
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Link: https://lore.kernel.org/r/20250722085500.1360401-1-ojeda@kernel.org
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
This enum is not used. Additionally, using it would result in poor
ergonomics, because in order to do any operation on a value it has to be
matched first. Our version of `Either` also doesn't provide any helper
methods making it even more difficult to use.
The alternative of creating a custom enum for the concrete use-case also
is much better for ergonomics. As one can provide functions on the type
directly and users don't need to match the value manually.
Signed-off-by: Benno Lossin <lossin@kernel.org>
Reviewed-by: Danilo Krummrich <dakr@kernel.org>
Link: https://lore.kernel.org/r/20250519124304.79237-1-lossin@kernel.org
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
With the Opaque<T>, the expectations are that Rust should not
make any assumptions on the layout or invariants of the wrapped
C types. That runs rather counter to ioctl arguments, which must
adhere to certain data-layout constraints. By using Opaque<T>,
ioctl handlers are forced to use unsafe code where none is actually
needed. This adds needless complexity and maintenance overhead,
brining no safety benefits.
Drop the use of Opaque for ioctl arguments as that is not the best
fit here.
Signed-off-by: Beata Michalska <beata.michalska@arm.com>
Reviewed-by: Boqun Feng <boqun.feng@gmail.com>
Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Link: https://lore.kernel.org/r/20250626162313.2755584-1-beata.michalska@arm.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Merge CPUFreq updates for 6.17 from Viresh Kumar:
"- tegra124: Allow building as a module (Aaron Kling).
- Minor cleanups for Rust cpufreq and cpumask APIs and fix MAINTAINERS
entry for cpu.rs (Abhinav Ananthu, Ritvik Gupta, and Lukas Bulwahn).
- Minor cleanups for miscellaneous cpufreq drivers (Arnd Bergmann, Dan
Carpenter, Krzysztof Kozlowski, Sven Peter, and Svyatoslav Ryhel)."
* tag 'cpufreq-arm-updates-6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm:
drivers: cpufreq: add Tegra114 support
rust: cpumask: Replace `MaybeUninit` and `mem::zeroed` with `Opaque` APIs
cpufreq: tegra124: Allow building as a module
cpufreq: dt: Add register helper
cpufreq: Export disable_cpufreq()
cpufreq: armada-8k: Fix off by one in armada_8k_cpufreq_free_table()
cpufreq: armada-8k: make both cpu masks static
rust: cpufreq: use c_ types from kernel prelude
rust: cpufreq: Ensure C ABI compatibility in all unsafe
cpufreq: brcmstb-avs: Fully open-code compatible for grepping
cpufreq: apple: drop default ARCH_APPLE in Kconfig
MAINTAINERS: adjust file entry in CPU HOTPLUG
Nova changes for v6.17
DMA:
- Merge topic/dma-features-2025-06-23 from alloc tree.
- Clarify wording and be consistent in 'coherent' nomenclature.
- Convert the read!() / write!() macros to return a Result.
- Add as_slice() / write() methods in CoherentAllocation.
- Fix doc-comment of dma_handle().
- Expose count() and size() in CoherentAllocation and add the
corresponding type invariants.
- Implement CoherentAllocation::dma_handle_with_offset().
nova-core:
- Various register!() macro improvements.
- Custom Sleep / Delay helpers (until the actual abstractions land).
- Add DMA object abstraction.
- VBIOS
- Image parser / iterator.
- PMU table look up in FWSEC.
- FWSEC ucode extraction.
- Register sysmem flush page.
- Falcon
- Generic falcon boot code and HAL (Ampere).
- GSP / SEC2 specific code.
- FWSEC-FRTS
- Compute layout of FRTS region (FbLayout and HAL).
- Load into GSP falcon and execute.
- Add Documentation for VBIOS layout, Devinit process, Fwsec operation
and layout, Falcon basics.
- Update and annotate TODO list.
- Add Alexandre Courbot as co-maintainer.
Rust:
- Make ETIMEDOUT error available.
- Add size constants up to SZ_2G.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: "Danilo Krummrich" <dakr@kernel.org>
Link: https://lore.kernel.org/r/DBFKLDMUGZD9.Z93GN2N5B0FI@kernel.org
Rather than export a macro that delegates to `core::format_args`, simply
re-export `core::format_args` as `fmt` from the prelude. This exposes
clippy warnings which were previously obscured by this macro, such as:
warning: variables can be used directly in the `format!` string
--> ../drivers/cpufreq/rcpufreq_dt.rs:21:43
|
21 | let prop_name = CString::try_from_fmt(fmt!("{}-supply", name)).ok()?;
| ^^^^^^^^^^^^^^^^^^^^^^^
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#uninlined_format_args
= note: `-W clippy::uninlined-format-args` implied by `-W clippy::all`
= help: to override `-W clippy::all` add `#[allow(clippy::uninlined_format_args)]`
help: change this to
|
21 - let prop_name = CString::try_from_fmt(fmt!("{}-supply", name)).ok()?;
21 + let prop_name = CString::try_from_fmt(fmt!("{name}-supply")).ok()?;
|
Thus fix them in the same commit. This could possibly be fixed in two
stages, but the diff is small enough (outside of kernel/str.rs) that I
hope it can be taken in a single commit.
Signed-off-by: Tamir Duberstein <tamird@gmail.com>
Reviewed-by: Benno Lossin <lossin@kernel.org>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Link: https://lore.kernel.org/r/20250704-core-cstr-prepare-v1-1-a91524037783@gmail.com
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
When introduced, the IoRequest doc-tests did depend on infrastructure
added in subsequent patches, hence they temporarily had to be disabled.
Now that we have the corresponding platform device infrastructure,
enable them.
Link: https://lore.kernel.org/r/DBG39YMN2TX6.1VR4PEQSI8PSG@kernel.org
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
The previous patches have added the abstractions for Resources and the
ability to map them and therefore read and write the underlying memory .
The only thing missing to make this accessible for platform devices is
to provide accessors that return instances of IoRequest<'a>. These
ensure that the resource are valid only for the lifetime of the platform
device, and that the platform device is in the Bound state.
Therefore, add these accessors. Also make it possible to retrieve
resources from platform devices in Rust using either a name or an index.
Acked-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Daniel Almeida <daniel.almeida@collabora.com>
Link: https://lore.kernel.org/r/20250717-topics-tyr-platform_iomem-v15-3-beca780b77e3@collabora.com
[ Remove #[expect(dead_code)] from IoRequest::new() and move SAFETY
comments right on top of unsafe blocks to avoid clippy warnings for
some (older) clippy versions. - Danilo ]
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Add a generic iomem abstraction to safely read and write ioremapped
regions. This abstraction requires a previously acquired IoRequest
instance. This makes it so that both the resource and the device match,
or, in other words, that the resource is indeed a valid resource for a
given bound device.
A subsequent patch will add the ability to retrieve IoRequest instances
from platform devices.
The reads and writes are done through IoRaw, and are thus checked either
at compile-time, if the size of the region is known at that point, or at
runtime otherwise.
Non-exclusive access to the underlying memory region is made possible to
cater to cases where overlapped regions are unavoidable.
Acked-by: Miguel Ojeda <ojeda@kernel.org>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Signed-off-by: Daniel Almeida <daniel.almeida@collabora.com>
Link: https://lore.kernel.org/r/20250717-topics-tyr-platform_iomem-v15-2-beca780b77e3@collabora.com
[ Add #[expect(dead_code)] to avoid a temporary warning, remove
unnecessary OF_ID_TABLE constants in doc-tests and ignore doc-tests
for now to avoid a temporary build failure. - Danilo ]
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
In light of bindgen being unable to generate bindings for macros, and
owing to the widespread use of these macros in drivers, manually define
the bit and genmask C macros in Rust.
The *_checked version of the functions provide runtime checking while
the const version performs compile-time assertions on the arguments via
the build_assert!() macro.
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Daniel Almeida <daniel.almeida@collabora.com>
Reviewed-by: Danilo Krummrich <dakr@kernel.org>
Link: https://lore.kernel.org/r/20250714-topics-tyr-genmask2-v9-1-9e6422cbadb6@collabora.com
[ `expect`ed Clippy warning in doctests, hid single `use`, grouped
examples. Reworded title. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Replace `ListLinksSelfPtr::LIST_LINKS_SELF_PTR_OFFSET` with `unsafe fn
raw_get_self_ptr` which returns a pointer to the field rather than
requiring the caller to do pointer arithmetic.
Implement `HasListLinks::raw_get_list_links` in `impl_has_list_links!`,
narrowing the interface of `HasListLinks` and replacing pointer
arithmetic with `container_of!`.
Modify `impl_list_item` to also invoke `impl_has_list_links!` or
`impl_has_list_links_self_ptr!`. This is necessary to allow
`impl_list_item` to see more of the tokens used by
`impl_has_list_links{,_self_ptr}!`.
A similar API change was discussed on the hrtimer series[1].
Link: https://lore.kernel.org/all/20250224-hrtimer-v3-v6-12-rc2-v9-1-5bd3bf0ce6cc@kernel.org/ [1]
Tested-by: Alice Ryhl <aliceryhl@google.com>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Signed-off-by: Tamir Duberstein <tamird@gmail.com>
Link: https://lore.kernel.org/r/20250709-list-no-offset-v4-6-a429e75840a9@gmail.com
[ Fixed broken intra-doc links. Used the renamed
`Opaque::cast_into`. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
There's a comprehensive example in `rust/kernel/list.rs` but it doesn't
exercise the `using ListLinksSelfPtr` variant nor the generic cases. Add
that here. Generalize `impl_has_list_links_self_ptr` to handle nested
fields in the same manner as `impl_has_list_links`.
Tested-by: Alice Ryhl <aliceryhl@google.com>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Signed-off-by: Tamir Duberstein <tamird@gmail.com>
Link: https://lore.kernel.org/r/20250709-list-no-offset-v4-5-a429e75840a9@gmail.com
[ Fixed Rust < 1.82 build by enabling the `offset_of_nested`
feature. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
When we renamed `Opaque::raw_get` to `cast_into`, there was one
replacement that was not supposed to be there.
It does not cause an issue so far because it is inside a macro rule (the
`ListLinksSelfPtr` one) that is unused so far. However, it will start
to be used soon.
Thus fix it now.
Fixes: 64fb810bce ("rust: types: rename Opaque::raw_get to cast_into")
Reviewed-by: Tamir Duberstein <tamird@gmail.com>
Link: https://lore.kernel.org/r/20250719183649.596051-1-ojeda@kernel.org
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Pull Rust fixes from Miguel Ojeda:
"Toolchain and infrastructure:
- Fix build and modpost confusion for the upcoming Rust 1.89.0
release
- Clean objtool warning for the upcoming Rust 1.89.0 release by
adding one more noreturn function
'kernel' crate:
- Fix build error when using generics in the 'try_{,pin_}init!'
macros"
* tag 'rust-fixes-6.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux:
rust: use `#[used(compiler)]` to fix build and `modpost` with Rust >= 1.89.0
objtool/rust: add one more `noreturn` Rust function for Rust 1.89.0
rust: init: Fix generics in *_init! macros
While rebasing rvkms I noticed that timers I was setting seemed to have
pretty random timer values that amounted slightly over 2x the time value I
set each time. After a lot of debugging, I finally managed to figure out
why: it seems that since we moved to Instant and Delta, we mistakenly
began passing the clocksource ID to hrtimer_start_range_ns, when we should
be passing the timer mode instead. Presumably, this works fine for simple
relative timers - but immediately breaks on other types of timers.
So, fix this by passing the ID for the timer mode instead.
Signed-off-by: Lyude Paul <lyude@redhat.com>
Acked-by: Andreas Hindborg <a.hindborg@kernel.org>
Reviewed-by: FUJITA Tomonori <fujita.tomonori@gmail.com>
Fixes: e0c0ab04f6 ("rust: time: Make HasHrTimer generic over HrTimerMode")
Link: https://lore.kernel.org/r/20250710225129.670051-1-lyude@redhat.com
[ Removed cast, applied `rustfmt`, fixed `Fixes:` tag. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Pull timekeeping updates from Andreas Hindborg:
- Make 'Instant' generic over clock source. This allows the compiler to
assert that arithmetic expressions involving the 'Instant' use
'Instants' based on the same clock source.
- Make 'HrTimer' generic over the timer mode. 'HrTimer' timers take a
'Duration' or an 'Instant' when setting the expiry time, depending on
the timer mode. With this change, the compiler can check the type
matches the timer mode.
- Add an abstraction for 'fsleep'. 'fsleep' is a flexible sleep
function that will select an appropriate sleep method depending on
the requested sleep time.
- Avoid 64-bit divisions on 32-bit hardware when calculating
timestamps.
- Seal the 'HrTimerMode' trait. This prevents users of the
'HrTimerMode' from implementing the trait on their own types.
* tag 'rust-timekeeping-for-v6.17' of https://github.com/Rust-for-Linux/linux:
rust: time: Add wrapper for fsleep() function
rust: time: Seal the HrTimerMode trait
rust: time: Remove Ktime in hrtimer
rust: time: Make HasHrTimer generic over HrTimerMode
rust: time: Add HrTimerExpires trait
rust: time: Replace HrTimerMode enum with trait-based mode types
rust: time: Add ktime_get() to ClockSource trait
rust: time: Make Instant generic over ClockSource
rust: time: Replace ClockId enum with ClockSource trait
rust: time: Avoid 64-bit integer division on 32-bit architectures
Introduce a new trait `RawDeviceIdIndex`, which extends `RawDeviceId`
to provide support for device ID types that include an index or
context field (e.g., `driver_data`). This separates the concerns of
layout compatibility and index-based data embedding, and allows
`RawDeviceId` to be implemented for types that do not contain a
`driver_data` field. Several such structures are defined in
include/linux/mod_devicetable.h.
Refactor `IdArray::new()` into a generic `build()` function, which
takes an optional offset. Based on the presence of `RawDeviceIdIndex`,
index writing is conditionally enabled. A new `new_without_index()`
constructor is also provided for use cases where no index should be
written.
This refactoring is a preparation for enabling the PHY abstractions to
use the RawDeviceId trait.
The changes to acpi.rs and driver.rs were made by Danilo.
Reviewed-by: Trevor Gross <tmgross@umich.edu>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@gmail.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20250711040947.1252162-2-fujita.tomonori@gmail.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Pull alloc and DMA updates from Danilo Krummrich:
Box:
- Implement Borrow / BorrowMut for Box<T, A>.
Vec:
- Implement Default for Vec<T, A>.
- Implement Borrow / BorrowMut for Vec<T, A>.
DMA:
- Clarify wording and be consistent in 'coherent' nomenclature.
- Convert the read!() / write!() macros to return a Result.
- Add as_slice() / write() methods in CoherentAllocation.
- Fix doc-comment of dma_handle().
- Expose count() and size() in CoherentAllocation and add the
corresponding type invariants.
- Implement CoherentAllocation::dma_handle_with_offset().
- Require mutable reference for as_slice_mut() and write().
MAINTAINERS:
- Add Vlastimil Babka, Liam R. Howlett, Uladzislau Rezki and Lorenzo
Stoakes as reviewers (thanks everyone).
* tag 'alloc-next-v6.17-2025-07-15' of https://github.com/Rust-for-Linux/linux:
MAINTAINERS: add mm folks as reviewers to rust alloc
rust: dma: require mutable reference for as_slice_mut() and write()
rust: dma: add dma_handle_with_offset method to CoherentAllocation
rust: dma: expose the count and size of CoherentAllocation
rust: dma: fix doc-comment of dma_handle()
rust: dma: add as_slice/write functions for CoherentAllocation
rust: dma: convert the read/write macros to return Result
rust: dma: clarify wording and be consistent in `coherent` nomenclature
rust: alloc: implement `Borrow` and `BorrowMut` for `KBox`
rust: alloc: implement `Borrow` and `BorrowMut` for `Vec`
rust: vec: impl Default for Vec with any allocator
This patch is being sent for use in the various Rust GPU drivers that
are under development. It provides the additional feature of work items
that are executed after a delay.
The design of the existing workqueue is rather extensible, as most of
the logic is reused for delayed work items even though a different work
item type is required. The new logic consists of:
* A new DelayedWork struct that wraps struct delayed_work.
* A new impl_has_delayed_work! macro that provides adjusted versions of
the container_of logic, that is suitable with delayed work items.
* A `enqueue_delayed` method that can enqueue a delayed work item.
This patch does *not* rely on the fact that `struct delayed_work`
contains `struct work_struct` at offset zero. It will continue to work
even if the layout is changed to hold the `work` field at a different
offset.
Please see the example introduced at the top of the file for example
usage of delayed work items.
Acked-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Boqun Feng <boqun.feng@gmail.com>
Signed-off-by: Alice Ryhl <aliceryhl@google.com>
Link: https://lore.kernel.org/r/20250711-workqueue-delay-v3-1-3fe17b18b9d1@google.com
[ Replaced `as _` with `as ffi::c_int` to clean warning. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
