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git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core
Pull driver core fixes from Danilo Krummrich:
- Fix UAF in cgroup pressure polling by using kernfs_get_active_of()
to prevent operations on released file descriptors
- Fix unresolved intra-doc link in the documentation of struct Device
when CONFIG_DRM != y
- Update the DMA Rust MAINTAINERS entry
* tag 'driver-core-6.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core:
MAINTAINERS: Update the DMA Rust entry
kernfs: Fix UAF in polling when open file is released
rust: device: fix unresolved link to drm::Device
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git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux
Pull rust fixes from Miguel Ojeda:
- Two changes to prepare for the future Rust 1.91.0 release (expected
2025-10-30, currently in nightly): a target specification format
change and a renamed, soon-to-be-stabilized 'core' function.
* tag 'rust-fixes-6.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux:
rust: support Rust >= 1.91.0 target spec
rust: use the new name Location::file_as_c_str() in Rust >= 1.91.0
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drm::Device is only available when CONFIG_DRM=y, which we have to
consider for intra-doc links, otherwise the rustdoc make target produces
the following warning.
>> warning: unresolved link to `kernel::drm::Device`
--> rust/kernel/device.rs:154:22
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154 | /// [`drm::Device`]: kernel::drm::Device
| ^^^^^^^^^^^^^^^^^^^ no item named `drm` in module `kernel`
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= note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default
Fix this by making the intra-doc link conditional on CONFIG_DRM being enabled.
Fixes: d6e26c1ae4a6 ("device: rust: expand documentation for Device")
Suggested-by: Alice Ryhl <aliceryhl@google.com>
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202508261644.9LclwUgt-lkp@intel.com/
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20250829195745.31174-1-dakr@kernel.org
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
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As part of the stabilization of Location::file_with_nul(), it was brought
up that the with_nul() suffix usually means something else in Rust APIs,
so the API is being renamed prior to stabilization [1].
Thus, use the new name on new rustc versions.
Link: https://www.github.com/rust-lang/rust/pull/145928 [1]
Signed-off-by: Alice Ryhl <aliceryhl@google.com>
Reviewed-by: Boqun Feng <boqun.feng@gmail.com>
Link: https://lore.kernel.org/r/20250827-file_as_c_str-v1-1-d3f5a3916a9c@google.com
[ Kept `cfg` separation. Reworded slightly. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
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Unsafe code in VmaNew's methods assumes that the type has the same layout
as the inner `bindings::vm_area_struct`. This is not guaranteed by the
default struct representation in Rust, but requires specifying the
`transparent` representation.
Link: https://lkml.kernel.org/r/20250812132712.61007-1-baptiste.lepers@gmail.com
Fixes: dcb81aeab406 ("mm: rust: add VmaNew for f_ops->mmap()")
Signed-off-by: Baptiste Lepers <baptiste.lepers@gmail.com>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Cc: Alex Gaynor <alex.gaynor@gmail.com>
Cc: Andreas Hindborg <a.hindborg@kernel.org>
Cc: Björn Roy Baron <bjorn3_gh@protonmail.com>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Danilo Krummrich <dakr@kernel.org>
Cc: Gary Guo <gary@garyguo.net>
Cc: Jann Horn <jannh@google.com>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Miguel Ojeda <ojeda@kernel.org>
Cc: Trevor Gross <tmgross@umich.edu>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core
Pull driver core fixes from Danilo Krummrich:
- Fix swapped handling of lru_gen and lru_gen_full debugfs files in
vmscan
- Fix debugfs mount options (uid, gid, mode) being silently ignored
- Fix leak of devres action in the unwind path of Devres::new()
- Documentation:
- Expand and fix documentation of (outdated) Device, DeviceContext
and generic driver infrastructure
- Fix C header link of faux device abstractions
- Clarify expected interaction with the security team
- Smooth text flow in the security bug reporting process
documentation
* tag 'driver-core-6.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core:
Documentation: smooth the text flow in the security bug reporting process
Documentation: clarify the expected collaboration with security bugs reporters
debugfs: fix mount options not being applied
rust: devres: fix leaking call to devm_add_action()
rust: faux: fix C header link
driver: rust: expand documentation for driver infrastructure
device: rust: expand documentation for Device
device: rust: expand documentation for DeviceContext
mm/vmscan: fix inverted polarity in lru_gen_seq_show()
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Commit fde578c86281 ("rust: alloc: replace aligned_size() with
Kmalloc::aligned_layout()") provides a public `aligned_layout` function
in `Kamlloc`, but not in `Cmalloc`, and thus uses of it will trigger an
error in `rusttest`.
Such a user appeared in the following commit 22ab0641b939 ("rust: drm:
ensure kmalloc() compatible Layout"):
error[E0599]: no function or associated item named `aligned_layout` found for struct `alloc::allocator_test::Cmalloc` in the current scope
--> rust/kernel/drm/device.rs:100:31
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100 | let layout = Kmalloc::aligned_layout(Layout::new::<Self>());
| ^^^^^^^^^^^^^^ function or associated item not found in `Cmalloc`
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::: rust/kernel/alloc/allocator_test.rs:19:1
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19 | pub struct Cmalloc;
| ------------------ function or associated item `aligned_layout` not found for this struct
Thus add an equivalent one for `Cmalloc`.
Fixes: fde578c86281 ("rust: alloc: replace aligned_size() with Kmalloc::aligned_layout()")
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Link: https://lore.kernel.org/r/20250816204215.2719559-1-ojeda@kernel.org
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
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When the data argument of Devres::new() is Err(), we leak the preceding
call to devm_add_action().
In order to fix this, call devm_add_action() in a unit type initializer in
try_pin_init!() after the initializers of all other fields.
Fixes: f5d3ef25d238 ("rust: devres: get rid of Devres' inner Arc")
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Reviewed-by: Benno Lossin <lossin@kernel.org>
Link: https://lore.kernel.org/r/20250812130928.11075-1-dakr@kernel.org
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
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Starting with Rust 1.91.0 (expected 2025-10-30), `rustdoc` has improved
some false negatives around intra-doc links [1], and it found a broken
intra-doc link we currently have:
error: unresolved link to `include/linux/device/faux.h`
--> rust/kernel/faux.rs:7:17
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7 | //! C header: [`include/linux/device/faux.h`]
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^ no item named `include/linux/device/faux.h` in scope
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= help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
= note: `-D rustdoc::broken-intra-doc-links` implied by `-D warnings`
= help: to override `-D warnings` add `#[allow(rustdoc::broken_intra_doc_links)]`
Our `srctree/` C header links are not intra-doc links, thus they need
the link destination.
Thus fix it.
Cc: stable <stable@kernel.org>
Link: https://github.com/rust-lang/rust/pull/132748 [1]
Fixes: 78418f300d39 ("rust/kernel: Add faux device bindings")
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Reviewed-by: Benno Lossin <lossin@kernel.org>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Link: https://lore.kernel.org/r/20250804171311.1186538-1-ojeda@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Add documentation about generic driver infrastructure, representing a
guideline on how the generic driver infrastructure is intended to be
used to implement bus specific driver APIs.
This covers aspects such as the bus specific driver trait, adapter
implementation, driver registration and custom device ID types.
Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Link: https://lore.kernel.org/r/20250722150110.23565-4-dakr@kernel.org
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
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The documentation for the generic Device type is outdated and deserves
much more detail.
Hence, expand the documentation and cover topics such as device types,
device contexts, as well as information on how to use the generic device
infrastructure to implement bus and class specific device types.
Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Link: https://lore.kernel.org/r/20250722150110.23565-3-dakr@kernel.org
[ Add empty line after code blocks, "in" -> "within", remove unnecessary
pin annotations in class device example. - Danilo ]
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
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Expand the documentation around DeviceContext states and types, in order
to provide detailed information about their purpose and relationship
with each other.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com>
Link: https://lore.kernel.org/r/20250722150110.23565-2-dakr@kernel.org
[ Fix two minor typos. - Danilo ]
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
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In drm_dev_put() call in AlwaysRefCounted::dec_ref() we rely on struct
drm_device to be the first field in drm::Device, whereas everywhere
else we correctly obtain the address of the actual struct drm_device.
Analogous to the from_drm_device() helper, provide the
into_drm_device() helper in order to address this.
Fixes: 1e4b8896c0f3 ("rust: drm: add device abstraction")
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Link: https://lore.kernel.org/r/20250731154919.4132-5-dakr@kernel.org
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
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The #[pin_data] and #[pin] annotations are not necessary for
drm::Device, since we don't use any pin-init macros, but only
__pinned_init() on the impl PinInit<T::Data, Error> argument of
drm::Device::new().
Fixes: 1e4b8896c0f3 ("rust: drm: add device abstraction")
Reviewed-by: Benno Lossin <lossin@kernel.org>
Link: https://lore.kernel.org/r/20250731154919.4132-4-dakr@kernel.org
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
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drm::Device is allocated through __drm_dev_alloc() (which uses
kmalloc()) and the driver private data, <T as drm::Driver>::Data, is
initialized in-place.
Due to the order of fields in drm::Device
pub struct Device<T: drm::Driver> {
dev: Opaque<bindings::drm_device>,
data: T::Data,
}
even with an arbitrary large alignment requirement of T::Data it can't
happen that the size of Device is smaller than its alignment requirement.
However, let's not rely on this subtle circumstance and create a proper
kmalloc() compatible Layout.
Fixes: 1e4b8896c0f3 ("rust: drm: add device abstraction")
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Link: https://lore.kernel.org/r/20250731154919.4132-3-dakr@kernel.org
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
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aligned_size() dates back to when Rust did support kmalloc() only, but
is now used in ReallocFunc::call() and hence for all allocators.
However, the additional padding applied by aligned_size() is only
required by the kmalloc() allocator backend.
Hence, replace aligned_size() with Kmalloc::aligned_layout() and use it
for the affected allocators, i.e. kmalloc() and kvmalloc(), only.
While at it, make Kmalloc::aligned_layout() public, such that Rust
abstractions, which have to call subsystem specific kmalloc() based
allocation primitives directly, can make use of it.
Fixes: 8a799831fc63 ("rust: alloc: implement `ReallocFunc`")
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Link: https://lore.kernel.org/r/20250731154919.4132-2-dakr@kernel.org
[ Remove `const` from Kmalloc::aligned_layout(). - Danilo ]
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux
Pull Rust updates from Miguel Ojeda:
"Toolchain and infrastructure:
- Enable a set of Clippy lints: 'ptr_as_ptr', 'ptr_cast_constness',
'as_ptr_cast_mut', 'as_underscore', 'cast_lossless' and
'ref_as_ptr'
These are intended to avoid type casts with the 'as' operator,
which are quite powerful, into restricted variants that are less
powerful and thus should help to avoid mistakes
- Remove the 'author' key now that most instances were moved to the
plural one in the previous cycle
'kernel' crate:
- New 'bug' module: add 'warn_on!' macro which reuses the existing
'BUG'/'WARN' infrastructure, i.e. it respects the usual sysctls and
kernel parameters:
warn_on!(value == 42);
To avoid duplicating the assembly code, the same strategy is
followed as for the static branch code in order to share the
assembly between both C and Rust
This required a few rearrangements on C arch headers -- the
existing C macros should still generate the same outputs, thus no
functional change expected there
- 'workqueue' module: add delayed work items, including a
'DelayedWork' struct, a 'impl_has_delayed_work!' macro and an
'enqueue_delayed' method, e.g.:
/// Enqueue the struct for execution on the system workqueue,
/// where its value will be printed 42 jiffies later.
fn print_later(value: Arc<MyStruct>) {
let _ = workqueue::system().enqueue_delayed(value, 42);
}
- New 'bits' module: add support for 'bit' and 'genmask' functions,
with runtime- and compile-time variants, e.g.:
static_assert!(0b00010000 == bit_u8(4));
static_assert!(0b00011110 == genmask_u8(1..=4));
assert!(checked_bit_u32(u32::BITS).is_none());
- 'uaccess' module: add 'UserSliceReader::strcpy_into_buf', which
reads NUL-terminated strings from userspace into a '&CStr'
Introduce 'UserPtr' newtype, similar in purpose to '__user' in C,
to minimize mistakes handling userspace pointers, including mixing
them up with integers and leaking them via the 'Debug' trait. Add
it to the prelude, too
- Start preparations for the replacement of our custom 'CStr' type
with the analogous type in the 'core' standard library. This will
take place across several cycles to make it easier. For this one,
it includes a new 'fmt' module, using upstream method names and
some other cleanups
Replace 'fmt!' with a re-export, which helps Clippy lint properly,
and clean up the found 'uninlined-format-args' instances
- 'dma' module:
- Clarify wording and be consistent in 'coherent' nomenclature
- Convert the 'read!()' and 'write!()' macros to return a 'Result'
- Add 'as_slice()', 'write()' methods in 'CoherentAllocation'
- Expose 'count()' and 'size()' in 'CoherentAllocation' and add
the corresponding type invariants
- Implement 'CoherentAllocation::dma_handle_with_offset()'
- 'time' module:
- 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
- Pass the correct timer mode ID to 'hrtimer_start_range_ns()'
- 'list' module: remove 'OFFSET' constants, allowing to remove
pointer arithmetic; now 'impl_list_item!' invokes
'impl_has_list_links!' or 'impl_has_list_links_self_ptr!'. Other
simplifications too
- 'types' module: remove 'ForeignOwnable::PointedTo' in favor of a
constant, which avoids exposing the type of the opaque pointer, and
require 'into_foreign' to return non-null
Remove the 'Either<L, R>' type as well. It is unused, and we want
to encourage the use of custom enums for concrete use cases
- 'sync' module: implement 'Borrow' and 'BorrowMut' for 'Arc' types
to allow them to be used in generic APIs
- 'alloc' module: implement 'Borrow' and 'BorrowMut' for 'Box<T, A>';
and 'Borrow', 'BorrowMut' and 'Default' for 'Vec<T, A>'
- 'Opaque' type: add 'cast_from' method to perform a restricted cast
that cannot change the inner type and use it in callers of
'container_of!'. Rename 'raw_get' to 'cast_into' to match it
- 'rbtree' module: add 'is_empty' method
- 'sync' module: new 'aref' submodule to hold 'AlwaysRefCounted' and
'ARef', which are moved from the too general 'types' module which
we want to reduce or eventually remove. Also fix a safety comment
in 'static_lock_class'
'pin-init' crate:
- Add 'impl<T, E> [Pin]Init<T, E> for Result<T, E>', so results are
now (pin-)initializers
- Add 'Zeroable::init_zeroed()' that delegates to 'init_zeroed()'
- New 'zeroed()', a safe version of 'mem::zeroed()' and also provide
it via 'Zeroable::zeroed()'
- Implement 'Zeroable' for 'Option<&T>', 'Option<&mut T>' and for
'Option<[unsafe] [extern "abi"] fn(...args...) -> ret>' for
'"Rust"' and '"C"' ABIs and up to 20 arguments
- Changed blanket impls of 'Init' and 'PinInit' from 'impl<T, E>
[Pin]Init<T, E> for T' to 'impl<T> [Pin]Init<T> for T'
- Renamed 'zeroed()' to 'init_zeroed()'
- Upstream dev news: improve CI more to deny warnings, use
'--all-targets'. Check the synchronization status of the two
'-next' branches in upstream and the kernel
MAINTAINERS:
- Add Vlastimil Babka, Liam R. Howlett, Uladzislau Rezki and Lorenzo
Stoakes as reviewers (thanks everyone)
And a few other cleanups and improvements"
* tag 'rust-6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux: (76 commits)
rust: Add warn_on macro
arm64/bug: Add ARCH_WARN_ASM macro for BUG/WARN asm code sharing with Rust
riscv/bug: Add ARCH_WARN_ASM macro for BUG/WARN asm code sharing with Rust
x86/bug: Add ARCH_WARN_ASM macro for BUG/WARN asm code sharing with Rust
rust: kernel: move ARef and AlwaysRefCounted to sync::aref
rust: sync: fix safety comment for `static_lock_class`
rust: types: remove `Either<L, R>`
rust: kernel: use `core::ffi::CStr` method names
rust: str: add `CStr` methods matching `core::ffi::CStr`
rust: str: remove unnecessary qualification
rust: use `kernel::{fmt,prelude::fmt!}`
rust: kernel: add `fmt` module
rust: kernel: remove `fmt!`, fix clippy::uninlined-format-args
scripts: rust: emit path candidates in panic message
scripts: rust: replace length checks with match
rust: list: remove nonexistent generic parameter in link
rust: bits: add support for bits/genmask macros
rust: list: remove OFFSET constants
rust: list: add `impl_list_item!` examples
rust: list: use fully qualified path
...
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git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk updates from Stephen Boyd:
"This is the usual collection of primarily clk driver updates.
The big part of the diff is all the new Qualcomm clk drivers added for
a few SoCs they're working on. The other two vendors with significant
work this cycle are Renesas and Amlogic. Renesas adds a bunch of clks
to existing drivers and supports some new SoCs while Amlogic is
starting a significant refactoring to simplify their code.
The core framework gained a pair of helpers to get the 'struct device'
or 'struct device_node' associated with a 'struct clk_hw'. Some
associated KUnit tests were added for these simple helpers as well.
Beyond that core change there are lots of little fixes throughout the
clk drivers for the stuff we see every day, wrong clk driver data that
affects tree topology or supported frequencies, etc. They're not found
until the clks are actually used by some consumer device driver.
New Drivers:
- Global, display, gpu, video, camera, tcsr, and rpmh clock
controller for the Qualcomm Milos SoC
- Camera, display, GPU, and video clock controllers for Qualcomm
QCS615
- Video clock controller driver for Qualcomm SM6350
- Camera clock controller driver for Qualcomm SC8180X
- I3C clocks and resets on Renesas RZ/G3E
- Expanded Serial Peripheral Interface (xSPI) clocks and resets on
Renesas RZ/V2H(P) and RZ/V2N
- SPI (RSPI) clocks and resets on Renesas RZ/V2H(P)
- SDHI and I2C clocks on Renesas RZ/T2H and RZ/N2H
- Ethernet clocks and resets on Renesas RZ/G3E
- Initial support for the Renesas RZ/T2H (R9A09G077) and RZ/N2H
(R9A09G087) SoCs
- Ethernet clocks and resets on Renesas RZ/V2H and RZ/V2N
- Timer, I2C, watchdog, GPU, and USB2.0 clocks and resets on Renesas
RZ/V2N
Updates:
- Support atomic PWMs in the PWM clk driver
- clk_hw_get_dev() and clk_hw_get_of_node() helpers
- Replace round_rate() with determine_rate() in various clk drivers
- Convert clk DT bindings to DT schema format for DT validation
- Various clk driver cleanups and refactorings from static analysis
tools and possibly real humans
- A lot of little fixes here and there to things like clk tree
topology, missing frequencies, flagging clks as critical, etc"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (216 commits)
clk: clocking-wizard: Fix the round rate handling for versal
clk: Fix typos
clk: spacemit: ccu_pll: fix error return value in recalc_rate callback
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: qcom: Remove redundant pm_runtime_mark_last_busy() calls
clk: imx: Remove redundant pm_runtime_mark_last_busy() calls
...
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Pull drm updates from Dave Airlie:
"Highlights:
- Intel xe enable Panthor Lake, started adding WildCat Lake
- amdgpu has a bunch of reset improvments along with the usual IP
updates
- msm got VM_BIND support which is important for vulkan sparse memory
- more drm_panic users
- gpusvm common code to handle a bunch of core SVM work outside
drivers.
Detail summary:
Changes outside drm subdirectory:
- 'shrink_shmem_memory()' for better shmem/hibernate interaction
- Rust support infrastructure:
- make ETIMEDOUT available
- add size constants up to SZ_2G
- add DMA coherent allocation bindings
- mtd driver for Intel GPU non-volatile storage
- i2c designware quirk for Intel xe
core:
- atomic helpers: tune enable/disable sequences
- add task info to wedge API
- refactor EDID quirks
- connector: move HDR sink to drm_display_info
- fourcc: half-float and 32-bit float formats
- mode_config: pass format info to simplify
dma-buf:
- heaps: Give CMA heap a stable name
ci:
- add device tree validation and kunit
displayport:
- change AUX DPCD access probe address
- add quirk for DPCD probe
- add panel replay definitions
- backlight control helpers
fbdev:
- make CONFIG_FIRMWARE_EDID available on all arches
fence:
- fix UAF issues
format-helper:
- improve tests
gpusvm:
- introduce devmem only flag for allocation
- add timeslicing support to GPU SVM
ttm:
- improve eviction
sched:
- tracing improvements
- kunit improvements
- memory leak fixes
- reset handling improvements
color mgmt:
- add hardware gamma LUT handling helpers
bridge:
- add destroy hook
- switch to reference counted drm_bridge allocations
- tc358767: convert to devm_drm_bridge_alloc
- improve CEC handling
panel:
- switch to reference counter drm_panel allocations
- fwnode panel lookup
- Huiling hl055fhv028c support
- Raspberry Pi 7" 720x1280 support
- edp: KDC KD116N3730A05, N160JCE-ELL CMN, N116BCJ-EAK
- simple: AUO P238HAN01
- st7701: Winstar wf40eswaa6mnn0
- visionox: rm69299-shift
- Renesas R61307, Renesas R69328 support
- DJN HX83112B
hdmi:
- add CEC handling
- YUV420 output support
xe:
- WildCat Lake support
- Enable PanthorLake by default
- mark BMG as SRIOV capable
- update firmware recommendations
- Expose media OA units
- aux-bux support for non-volatile memory
- MTD intel-dg driver for non-volatile memory
- Expose fan control and voltage regulator in sysfs
- restructure migration for multi-device
- Restore GuC submit UAF fix
- make GEM shrinker drm managed
- SRIOV VF Post-migration recovery of GGTT nodes
- W/A additions/reworks
- Prefetch support for svm ranges
- Don't allocate managed BO for each policy change
- HWMON fixes for BMG
- Create LRC BO without VM
- PCI ID updates
- make SLPC debugfs files optional
- rework eviction rejection of bound external BOs
- consolidate PAT programming logic for pre/post Xe2
- init changes for flicker-free boot
- Enable GuC Dynamic Inhibit Context switch
i915:
- drm_panic support for i915/xe
- initial flip queue off by default for LNL/PNL
- Wildcat Lake Display support
- Support for DSC fractional link bpp
- Support for simultaneous Panel Replay and Adaptive sync
- Support for PTL+ double buffer LUT
- initial PIPEDMC event handling
- drm_panel_follower support
- DPLL interface renames
- allocate struct intel_display dynamically
- flip queue preperation
- abstract DRAM detection better
- avoid GuC scheduling stalls
- remove DG1 force probe requirement
- fix MEI interrupt handler on RT kernels
- use backlight control helpers for eDP
- more shared display code refactoring
amdgpu:
- add userq slot to INFO ioctl
- SR-IOV hibernation support
- Suspend improvements
- Backlight improvements
- Use scaling for non-native eDP modes
- cleaner shader updates for GC 9.x
- Remove fence slab
- SDMA fw checks for userq support
- RAS updates
- DMCUB updates
- DP tunneling fixes
- Display idle D3 support
- Per queue reset improvements
- initial smartmux support
amdkfd:
- enable KFD on loongarch
- mtype fix for ext coherent system memory
radeon:
- CS validation additional GL extensions
- drop console lock during suspend/resume
- bump driver version
msm:
- VM BIND support
- CI: infrastructure updates
- UBWC single source of truth
- decouple GPU and KMS support
- DP: rework I/O accessors
- DPU: SM8750 support
- DSI: SM8750 support
- GPU: X1-45 support and speedbin support for X1-85
- MDSS: SM8750 support
nova:
- register! macro improvements
- DMA object abstraction
- VBIOS parser + fwsec lookup
- sysmem flush page support
- falcon: generic falcon boot code and HAL
- FWSEC-FRTS: fb setup and load/execute
ivpu:
- Add Wildcat Lake support
- Add turbo flag
ast:
- improve hardware generations implementation
imx:
- IMX8qxq Display Controller support
lima:
- Rockchip RK3528 GPU support
nouveau:
- fence handling cleanup
panfrost:
- MT8370 support
- bo labeling
- 64-bit register access
qaic:
- add RAS support
rockchip:
- convert inno_hdmi to a bridge
rz-du:
- add RZ/V2H(P) support
- MIPI-DSI DCS support
sitronix:
- ST7567 support
sun4i:
- add H616 support
tidss:
- add TI AM62L support
- AM65x OLDI bridge support
bochs:
- drm panic support
vkms:
- YUV and R* format support
- use faux device
vmwgfx:
- fence improvements
hyperv:
- move out of simple
- add drm_panic support"
* tag 'drm-next-2025-07-30' of https://gitlab.freedesktop.org/drm/kernel: (1479 commits)
drm/tidss: oldi: convert to devm_drm_bridge_alloc() API
drm/tidss: encoder: convert to devm_drm_bridge_alloc()
drm/amdgpu: move reset support type checks into the caller
drm/amdgpu/sdma7: re-emit unprocessed state on ring reset
drm/amdgpu/sdma6: re-emit unprocessed state on ring reset
drm/amdgpu/sdma5.2: re-emit unprocessed state on ring reset
drm/amdgpu/sdma5: re-emit unprocessed state on ring reset
drm/amdgpu/gfx12: re-emit unprocessed state on ring reset
drm/amdgpu/gfx11: re-emit unprocessed state on ring reset
drm/amdgpu/gfx10: re-emit unprocessed state on ring reset
drm/amdgpu/gfx9.4.3: re-emit unprocessed state on kcq reset
drm/amdgpu/gfx9: re-emit unprocessed state on kcq reset
drm/amdgpu: Add WARN_ON to the resource clear function
drm/amd/pm: Use cached metrics data on SMUv13.0.6
drm/amd/pm: Use cached data for min/max clocks
gpu: nova-core: fix bounds check in PmuLookupTableEntry::new
drm/amdgpu: Replace HQD terminology with slots naming
drm/amdgpu: Add user queue instance count in HW IP info
drm/amd/amdgpu: Add helper functions for isp buffers
drm/amd/amdgpu: Initialize swnode for ISP MFD device
...
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski:
"Core & protocols:
- Wrap datapath globals into net_aligned_data, to avoid false sharing
- Preserve MSG_ZEROCOPY in forwarding (e.g. out of a container)
- Add SO_INQ and SCM_INQ support to AF_UNIX
- Add SIOCINQ support to AF_VSOCK
- Add TCP_MAXSEG sockopt to MPTCP
- Add IPv6 force_forwarding sysctl to enable forwarding per interface
- Make TCP validation of whether packet fully fits in the receive
window and the rcv_buf more strict. With increased use of HW
aggregation a single "packet" can be multiple 100s of kB
- Add MSG_MORE flag to optimize large TCP transmissions via sockmap,
improves latency up to 33% for sockmap users
- Convert TCP send queue handling from tasklet to BH workque
- Improve BPF iteration over TCP sockets to see each socket exactly
once
- Remove obsolete and unused TCP RFC3517/RFC6675 loss recovery code
- Support enabling kernel threads for NAPI processing on per-NAPI
instance basis rather than a whole device. Fully stop the kernel
NAPI thread when threaded NAPI gets disabled. Previously thread
would stick around until ifdown due to tricky synchronization
- Allow multicast routing to take effect on locally-generated packets
- Add output interface argument for End.X in segment routing
- MCTP: add support for gateway routing, improve bind() handling
- Don't require rtnl_lock when fetching an IPv6 neighbor over Netlink
- Add a new neighbor flag ("extern_valid"), which cedes refresh
responsibilities to userspace. This is needed for EVPN multi-homing
where a neighbor entry for a multi-homed host needs to be synced
across all the VTEPs among which the host is multi-homed
- Support NUD_PERMANENT for proxy neighbor entries
- Add a new queuing discipline for IETF RFC9332 DualQ Coupled AQM
- Add sequence numbers to netconsole messages. Unregister
netconsole's console when all net targets are removed. Code
refactoring. Add a number of selftests
- Align IPSec inbound SA lookup to RFC 4301. Only SPI and protocol
should be used for an inbound SA lookup
- Support inspecting ref_tracker state via DebugFS
- Don't force bonding advertisement frames tx to ~333 ms boundaries.
Add broadcast_neighbor option to send ARP/ND on all bonded links
- Allow providing upcall pid for the 'execute' command in openvswitch
- Remove DCCP support from Netfilter's conntrack
- Disallow multiple packet duplications in the queuing layer
- Prevent use of deprecated iptables code on PREEMPT_RT
Driver API:
- Support RSS and hashing configuration over ethtool Netlink
- Add dedicated ethtool callbacks for getting and setting hashing
fields
- Add support for power budget evaluation strategy in PSE /
Power-over-Ethernet. Generate Netlink events for overcurrent etc
- Support DPLL phase offset monitoring across all device inputs.
Support providing clock reference and SYNC over separate DPLL
inputs
- Support traffic classes in devlink rate API for bandwidth
management
- Remove rtnl_lock dependency from UDP tunnel port configuration
Device drivers:
- Add a new Broadcom driver for 800G Ethernet (bnge)
- Add a standalone driver for Microchip ZL3073x DPLL
- Remove IBM's NETIUCV device driver
- Ethernet high-speed NICs:
- Broadcom (bnxt):
- support zero-copy Tx of DMABUF memory
- take page size into account for page pool recycling rings
- Intel (100G, ice, idpf):
- idpf: XDP and AF_XDP support preparations
- idpf: add flow steering
- add link_down_events statistic
- clean up the TSPLL code
- preparations for live VM migration
- nVidia/Mellanox:
- support zero-copy Rx/Tx interfaces (DMABUF and io_uring)
- optimize context memory usage for matchers
- expose serial numbers in devlink info
- support PCIe congestion metrics
- Meta (fbnic):
- add 25G, 50G, and 100G link modes to phylink
- support dumping FW logs
- Marvell/Cavium:
- support for CN20K generation of the Octeon chips
- Amazon:
- add HW clock (without timestamping, just hypervisor time access)
- Ethernet virtual:
- VirtIO net:
- support segmentation of UDP-tunnel-encapsulated packets
- Google (gve):
- support packet timestamping and clock synchronization
- Microsoft vNIC:
- add handler for device-originated servicing events
- allow dynamic MSI-X vector allocation
- support Tx bandwidth clamping
- Ethernet NICs consumer, and embedded:
- AMD:
- amd-xgbe: hardware timestamping and PTP clock support
- Broadcom integrated MACs (bcmgenet, bcmasp):
- use napi_complete_done() return value to support NAPI polling
- add support for re-starting auto-negotiation
- Broadcom switches (b53):
- support BCM5325 switches
- add bcm63xx EPHY power control
- Synopsys (stmmac):
- lots of code refactoring and cleanups
- TI:
- icssg-prueth: read firmware-names from device tree
- icssg: PRP offload support
- Microchip:
- lan78xx: convert to PHYLINK for improved PHY and MAC management
- ksz: add KSZ8463 switch support
- Intel:
- support similar queue priority scheme in multi-queue and
time-sensitive networking (taprio)
- support packet pre-emption in both
- RealTek (r8169):
- enable EEE at 5Gbps on RTL8126
- Airoha:
- add PPPoE offload support
- MDIO bus controller for Airoha AN7583
- Ethernet PHYs:
- support for the IPQ5018 internal GE PHY
- micrel KSZ9477 switch-integrated PHYs:
- add MDI/MDI-X control support
- add RX error counters
- add cable test support
- add Signal Quality Indicator (SQI) reporting
- dp83tg720: improve reset handling and reduce link recovery time
- support bcm54811 (and its MII-Lite interface type)
- air_en8811h: support resume/suspend
- support PHY counters for QCA807x and QCA808x
- support WoL for QCA807x
- CAN drivers:
- rcar_canfd: support for Transceiver Delay Compensation
- kvaser: report FW versions via devlink dev info
- WiFi:
- extended regulatory info support (6 GHz)
- add statistics and beacon monitor for Multi-Link Operation (MLO)
- support S1G aggregation, improve S1G support
- add Radio Measurement action fields
- support per-radio RTS threshold
- some work around how FIPS affects wifi, which was wrong (RC4 is
used by TKIP, not only WEP)
- improvements for unsolicited probe response handling
- WiFi drivers:
- RealTek (rtw88):
- IBSS mode for SDIO devices
- RealTek (rtw89):
- BT coexistence for MLO/WiFi7
- concurrent station + P2P support
- support for USB devices RTL8851BU/RTL8852BU
- Intel (iwlwifi):
- use embedded PNVM in (to be released) FW images to fix
compatibility issues
- many cleanups (unused FW APIs, PCIe code, WoWLAN)
- some FIPS interoperability
- MediaTek (mt76):
- firmware recovery improvements
- more MLO work
- Qualcomm/Atheros (ath12k):
- fix scan on multi-radio devices
- more EHT/Wi-Fi 7 features
- encapsulation/decapsulation offload
- Broadcom (brcm80211):
- support SDIO 43751 device
- Bluetooth:
- hci_event: add support for handling LE BIG Sync Lost event
- ISO: add socket option to report packet seqnum via CMSG
- ISO: support SCM_TIMESTAMPING for ISO TS
- Bluetooth drivers:
- intel_pcie: support Function Level Reset
- nxpuart: add support for 4M baudrate
- nxpuart: implement powerup sequence, reset, FW dump, and FW loading"
* tag 'net-next-6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1742 commits)
dpll: zl3073x: Fix build failure
selftests: bpf: fix legacy netfilter options
ipv6: annotate data-races around rt->fib6_nsiblings
ipv6: fix possible infinite loop in fib6_info_uses_dev()
ipv6: prevent infinite loop in rt6_nlmsg_size()
ipv6: add a retry logic in net6_rt_notify()
vrf: Drop existing dst reference in vrf_ip6_input_dst
net/sched: taprio: align entry index attr validation with mqprio
net: fsl_pq_mdio: use dev_err_probe
selftests: rtnetlink.sh: remove esp4_offload after test
vsock: remove unnecessary null check in vsock_getname()
igb: xsk: solve negative overflow of nb_pkts in zerocopy mode
stmmac: xsk: fix negative overflow of budget in zerocopy mode
dt-bindings: ieee802154: Convert at86rf230.txt yaml format
net: dsa: microchip: Disable PTP function of KSZ8463
net: dsa: microchip: Setup fiber ports for KSZ8463
net: dsa: microchip: Write switch MAC address differently for KSZ8463
net: dsa: microchip: Use different registers for KSZ8463
net: dsa: microchip: Add KSZ8463 switch support to KSZ DSA driver
dt-bindings: net: dsa: microchip: Add KSZ8463 switch support
...
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking updates from Ingo Molnar:
"Locking primitives:
- Mark devm_mutex_init() as __must_check and fix drivers that didn't
check the return code (Thomas Weißschuh)
- Reorganize <linux/local_lock.h> to better expose the internal APIs
to local variables (Sebastian Andrzej Siewior)
- Remove OWNER_SPINNABLE in rwsem (Jinliang Zheng)
- Remove redundant #ifdefs in the mutex code (Ran Xiaokai)
Lockdep:
- Avoid returning struct in lock_stats() (Arnd Bergmann)
- Change `static const` into enum for LOCKF_*_IRQ_* (Arnd Bergmann)
- Temporarily use synchronize_rcu_expedited() in
lockdep_unregister_key() to speed things up. (Breno Leitao)
Rust runtime:
- Add #[must_use] to Lock::try_lock() (Jason Devers)"
* tag 'locking-core-2025-07-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
lockdep: Speed up lockdep_unregister_key() with expedited RCU synchronization
locking/mutex: Remove redundant #ifdefs
locking/lockdep: Change 'static const' variables to enum values
locking/lockdep: Avoid struct return in lock_stats()
locking/rwsem: Use OWNER_NONSPINNABLE directly instead of OWNER_SPINNABLE
rust: sync: Add #[must_use] to Lock::try_lock()
locking/mutex: Mark devm_mutex_init() as __must_check
leds: lp8860: Check return value of devm_mutex_init()
spi: spi-nxp-fspi: Check return value of devm_mutex_init()
local_lock: Move this_cpu_ptr() notation from internal to main header
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler updates from Ingo Molnar:
"Core scheduler changes:
- Better tracking of maximum lag of tasks in presence of different
slices duration, for better handling of lag in the fair scheduler
(Vincent Guittot)
- Clean up and standardize #if/#else/#endif markers throughout the
entire scheduler code base (Ingo Molnar)
- Make SMP unconditional: build the SMP scheduler's data structures
and logic on UP kernel too, even though they are not used, to
simplify the scheduler and remove around 200 #ifdef/[#else]/#endif
blocks from the scheduler (Ingo Molnar)
- Reorganize cgroup bandwidth control interface handling for better
interfacing with sched_ext (Tejun Heo)
Balancing:
- Bump sd->max_newidle_lb_cost when newidle balance fails (Chris
Mason)
- Remove sched_domain_topology_level::flags to simplify the code
(Prateek Nayak)
- Simplify and clean up build_sched_topology() (Li Chen)
- Optimize build_sched_topology() on large machines (Li Chen)
Real-time scheduling:
- Add initial version of proxy execution: a mechanism for
mutex-owning tasks to inherit the scheduling context of higher
priority waiters.
Currently limited to a single runqueue and conditional on
CONFIG_EXPERT, and other limitations (John Stultz, Peter Zijlstra,
Valentin Schneider)
- Deadline scheduler (Juri Lelli):
- Fix dl_servers initialization order (Juri Lelli)
- Fix DL scheduler's root domain reinitialization logic (Juri
Lelli)
- Fix accounting bugs after global limits change (Juri Lelli)
- Fix scalability regression by implementing less agressive
dl_server handling (Peter Zijlstra)
PSI:
- Improve scalability by optimizing psi_group_change() cpu_clock()
usage (Peter Zijlstra)
Rust changes:
- Make Task, CondVar and PollCondVar methods inline to avoid
unnecessary function calls (Kunwu Chan, Panagiotis Foliadis)
- Add might_sleep() support for Rust code: Rust's "#[track_caller]"
mechanism is used so that Rust's might_sleep() doesn't need to be
defined as a macro (Fujita Tomonori)
- Introduce file_from_location() (Boqun Feng)
Debugging & instrumentation:
- Make clangd usable with scheduler source code files again (Peter
Zijlstra)
- tools: Add root_domains_dump.py which dumps root domains info (Juri
Lelli)
- tools: Add dl_bw_dump.py for printing bandwidth accounting info
(Juri Lelli)
Misc cleanups & fixes:
- Remove play_idle() (Feng Lee)
- Fix check_preemption_disabled() (Sebastian Andrzej Siewior)
- Do not call __put_task_struct() on RT if pi_blocked_on is set (Luis
Claudio R. Goncalves)
- Correct the comment in place_entity() (wang wei)"
* tag 'sched-core-2025-07-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (84 commits)
sched/idle: Remove play_idle()
sched: Do not call __put_task_struct() on rt if pi_blocked_on is set
sched: Start blocked_on chain processing in find_proxy_task()
sched: Fix proxy/current (push,pull)ability
sched: Add an initial sketch of the find_proxy_task() function
sched: Fix runtime accounting w/ split exec & sched contexts
sched: Move update_curr_task logic into update_curr_se
locking/mutex: Add p->blocked_on wrappers for correctness checks
locking/mutex: Rework task_struct::blocked_on
sched: Add CONFIG_SCHED_PROXY_EXEC & boot argument to enable/disable
sched/topology: Remove sched_domain_topology_level::flags
x86/smpboot: avoid SMT domain attach/destroy if SMT is not enabled
x86/smpboot: moves x86_topology to static initialize and truncate
x86/smpboot: remove redundant CONFIG_SCHED_SMT
smpboot: introduce SDTL_INIT() helper to tidy sched topology setup
tools/sched: Add dl_bw_dump.py for printing bandwidth accounting info
tools/sched: Add root_domains_dump.py which dumps root domains info
sched/deadline: Fix accounting after global limits change
sched/deadline: Reset extra_bw to max_bw when clearing root domains
sched/deadline: Initialize dl_servers after SMP
...
|
|
'clk-xilinx' and 'clk-adi' into clk-next
- 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
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core
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
...
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
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'
...
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|
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
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
...
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|
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
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
...
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
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
|
|
Cross-merge networking fixes after downstream PR (net-6.16-rc8).
Conflicts:
drivers/net/ethernet/microsoft/mana/gdma_main.c
9669ddda18fb ("net: mana: Fix warnings for missing export.h header inclusion")
755391121038 ("net: mana: Allocate MSI-X vectors dynamically")
https://lore.kernel.org/20250711130752.23023d98@canb.auug.org.au
Adjacent changes:
drivers/net/ethernet/ti/icssg/icssg_prueth.h
6e86fb73de0f ("net: ti: icssg-prueth: Fix buffer allocation for ICSSG")
ffe8a4909176 ("net: ti: icssg-prueth: Read firmware-names from device tree")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
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>
|
|
The safety comment mentions lockdep -- which from a Rust perspective
isn't important -- and doesn't mention the real reason for why it's
sound to create `LockClassKey` as uninitialized memory.
Signed-off-by: Benno Lossin <lossin@kernel.org>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Link: https://lore.kernel.org/r/20250520231714.323931-1-lossin@kernel.org
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
|
|
`platform` is not accessible from here.
Thus fix the intra-doc links by qualifying the paths a bit more.
Fixes: 1d0d4b28513b ("rust: io: mem: add a generic iomem abstraction")
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Link: https://lore.kernel.org/r/20250722085500.1360401-2-ojeda@kernel.org
Signed-off-by: Danilo Krummrich <dakr@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: 493fc33ec252 ("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>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm
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
|
|
https://gitlab.freedesktop.org/drm/nova into drm-next
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
|
|
Prepare for `core::ffi::CStr` taking the place of `kernel::str::CStr` by
avoiding methods that only exist on the latter.
Also avoid `Deref<Target=BStr> for CStr` as that impl doesn't exist on
`core::ffi::CStr`.
Link: https://github.com/Rust-for-Linux/linux/issues/1075
Signed-off-by: Tamir Duberstein <tamird@gmail.com>
Reviewed-by: Benno Lossin <lossin@kernel.org>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Link: https://lore.kernel.org/r/20250704-core-cstr-prepare-v1-6-a91524037783@gmail.com
[ Reworded title. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
|
|
Prepare for replacing `CStr` with `core::ffi::CStr` by soft-deprecating
methods which don't exist on `core::ffi::CStr`.
We could keep `as_bytes{,_with_nul}` through an extension trait but
seeing as we have to introduce `as_char_ptr_in_const_context` as a free
function, we may as well introduce `to_bytes{,_with_nul}` here to allow
downstream code to migrate in one cycle rather than two.
Link: https://github.com/Rust-for-Linux/linux/issues/1075
Signed-off-by: Tamir Duberstein <tamird@gmail.com>
Reviewed-by: Benno Lossin <lossin@kernel.org>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Link: https://lore.kernel.org/r/20250704-core-cstr-prepare-v1-5-a91524037783@gmail.com
[ Reworded title. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
|
|
`core::ffi::*` is in the prelude, which is imported here.
Signed-off-by: Tamir Duberstein <tamird@gmail.com>
Reviewed-by: Benno Lossin <lossin@kernel.org>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Link: https://lore.kernel.org/r/20250704-core-cstr-prepare-v1-4-a91524037783@gmail.com
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
|
|
Reduce coupling to implementation details of the formatting machinery by
avoiding direct use for `core`'s formatting traits and macros.
Signed-off-by: Tamir Duberstein <tamird@gmail.com>
Reviewed-by: Benno Lossin <lossin@kernel.org>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Link: https://lore.kernel.org/r/20250704-core-cstr-prepare-v1-3-a91524037783@gmail.com
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
|
|
`kernel::fmt` is a facade over `core::fmt` that can be used downstream,
allowing future changes to the formatting machinery to be contained
within the kernel crate without downstream code needing to be modified.
Signed-off-by: Tamir Duberstein <tamird@gmail.com>
Reviewed-by: Benno Lossin <lossin@kernel.org>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Link: https://lore.kernel.org/r/20250704-core-cstr-prepare-v1-2-a91524037783@gmail.com
Signed-off-by: Miguel Ojeda <ojeda@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
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21 - let prop_name = CString::try_from_fmt(fmt!("{}-supply", name)).ok()?;
21 + let prop_name = CString::try_from_fmt(fmt!("{name}-supply")).ok()?;
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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>
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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>
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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>
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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>
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In preparation for ioremap support, add a Rust abstraction for struct
resource.
A future commit will introduce the Rust API to ioremap a resource from a
platform device. The current abstraction, therefore, adds only the
minimum API needed to get that done.
Acked-by: Miguel Ojeda <ojeda@kernel.org>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Co-developed-by: Fiona Behrens <me@kloenk.dev>
Signed-off-by: Fiona Behrens <me@kloenk.dev>
Signed-off-by: Daniel Almeida <daniel.almeida@collabora.com>
Link: https://lore.kernel.org/r/20250717-topics-tyr-platform_iomem-v15-1-beca780b77e3@collabora.com
[ Capitalize safety comments and end it with a period. - Danilo ]
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
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`ListLinks` does not take a `T` generic parameter, unlike
`ListLinksSelfPtr`.
Thus fix it, which makes it also consistent with the rest of the links
in the file.
Fixes: 40c53294596b ("rust: list: add macro for implementing ListItem")
Reviewed-by: Tamir Duberstein <tamird@gmail.com>
Link: https://lore.kernel.org/r/20250719232500.822313-1-ojeda@kernel.org
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
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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>
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