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9cb1547891
719 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Dave Airlie
|
c4f8ac095f |
Nova changes for v6.16
auxiliary:
- bus abstractions
- implementation for driver registration
- add sample driver
drm:
- implement __drm_dev_alloc()
- DRM core infrastructure Rust abstractions
- device, driver and registration
- DRM IOCTL
- DRM File
- GEM object
- IntoGEMObject rework
- generically implement AlwaysRefCounted through IntoGEMObject
- refactor unsound from_gem_obj() into as_ref()
- refactor into_gem_obj() into as_raw()
driver-core:
- merge topic/device-context-2025-04-17 from driver-core tree
- implement Devres::access()
- fix: doctest build under `!CONFIG_PCI`
- accessor for Device::parent()
- fix: conditionally expect `dead_code` for `parent()`
- impl TryFrom<&Device> bus devices (PCI, platform)
nova-core:
- remove completed Vec extentions from task list
- register auxiliary device for nova-drm
- derive useful traits for Chipset
- add missing GA100 chipset
- take &Device<Bound> in Gpu::new()
- infrastructure to generate register definitions
- fix register layout of NV_PMC_BOOT_0
- move Firmware into own (Rust) module
- fix: select AUXILIARY_BUS
nova-drm:
- initial driver skeleton (depends on drm and auxiliary bus
abstractions)
- fix: select AUXILIARY_BUS
Rust (dependencies):
- implement Opaque::zeroed()
- implement Revocable::try_access_with()
- implement Revocable::access()
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Merge tag 'nova-next-v6.16-2025-05-20' of https://gitlab.freedesktop.org/drm/nova into drm-next
Nova changes for v6.16
auxiliary:
- bus abstractions
- implementation for driver registration
- add sample driver
drm:
- implement __drm_dev_alloc()
- DRM core infrastructure Rust abstractions
- device, driver and registration
- DRM IOCTL
- DRM File
- GEM object
- IntoGEMObject rework
- generically implement AlwaysRefCounted through IntoGEMObject
- refactor unsound from_gem_obj() into as_ref()
- refactor into_gem_obj() into as_raw()
driver-core:
- merge topic/device-context-2025-04-17 from driver-core tree
- implement Devres::access()
- fix: doctest build under `!CONFIG_PCI`
- accessor for Device::parent()
- fix: conditionally expect `dead_code` for `parent()`
- impl TryFrom<&Device> bus devices (PCI, platform)
nova-core:
- remove completed Vec extentions from task list
- register auxiliary device for nova-drm
- derive useful traits for Chipset
- add missing GA100 chipset
- take &Device<Bound> in Gpu::new()
- infrastructure to generate register definitions
- fix register layout of NV_PMC_BOOT_0
- move Firmware into own (Rust) module
- fix: select AUXILIARY_BUS
nova-drm:
- initial driver skeleton (depends on drm and auxiliary bus
abstractions)
- fix: select AUXILIARY_BUS
Rust (dependencies):
- implement Opaque::zeroed()
- implement Revocable::try_access_with()
- implement Revocable::access()
From: Danilo Krummrich <dakr@kernel.org>
Link: https://lore.kernel.org/r/aCxAf3RqQAXLDhAj@cassiopeiae
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Lyude Paul
|
38cb08c3fc |
rust: drm: gem: Implement AlwaysRefCounted for all gem objects automatically
Currently we are requiring AlwaysRefCounted in most trait bounds for gem objects, and implementing it by hand for our only current type of gem object. However, all gem objects use the same functions for reference counting - and all gem objects support reference counting. We're planning on adding support for shmem gem objects, let's move this around a bit by instead making IntoGEMObject require AlwaysRefCounted as a trait bound, and then provide a blanket AlwaysRefCounted implementation for any object that implements IntoGEMObject so all gem object types can use the same AlwaysRefCounted implementation. This also makes things less verbose by making the AlwaysRefCounted trait bound implicit for any IntoGEMObject bound. Signed-off-by: Lyude Paul <lyude@redhat.com> Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Link: https://lore.kernel.org/r/20250513221046.903358-5-lyude@redhat.com Signed-off-by: Danilo Krummrich <dakr@kernel.org> |
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Lyude Paul
|
b36ff40b4a |
rust: drm: gem: s/into_gem_obj()/as_raw()/
There's a few changes here: * The rename, of course (this should also let us drop the clippy annotation here) * Return *mut bindings::drm_gem_object instead of &Opaque<bindings::drm_gem_object> - the latter doesn't really have any benefit and just results in conversion from the rust type to the C type having to be more verbose than necessary. Signed-off-by: Lyude Paul <lyude@redhat.com> Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Link: https://lore.kernel.org/r/20250513221046.903358-4-lyude@redhat.com [ Fixup s/into_gem_obj()/as_raw()/ in safety comment. - Danilo ] Signed-off-by: Danilo Krummrich <dakr@kernel.org> |
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Lyude Paul
|
36b1ccbfa0 |
rust: drm: gem: Refactor IntoGEMObject::from_gem_obj() to as_ref()
There's a few issues with this function, mainly: * This function -probably- should have been unsafe from the start. Pointers are not always necessarily valid, but you want a function that does field-projection for a pointer that can travel outside of the original struct to be unsafe, at least if I understand properly. * *mut Self is not terribly useful in this context, the majority of uses of from_gem_obj() grab a *mut Self and then immediately convert it into a &'a Self. It also goes against the ffi conventions we've set in the rest of the kernel thus far. * from_gem_obj() also doesn't follow the naming conventions in the rest of the DRM bindings at the moment, as_ref() would be a better name. So, let's: * Make from_gem_obj() unsafe * Convert it to return &'a Self * Rename it to as_ref() * Update all call locations Signed-off-by: Lyude Paul <lyude@redhat.com> Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Link: https://lore.kernel.org/r/20250513221046.903358-3-lyude@redhat.com Signed-off-by: Danilo Krummrich <dakr@kernel.org> |
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Lyude Paul
|
6ee48aee8c |
rust: drm: gem: Use NonNull for Object::dev
There is usually not much of a reason to use a raw pointer in a data struct, so move this to NonNull instead. Signed-off-by: Lyude Paul <lyude@redhat.com> Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Link: https://lore.kernel.org/r/20250513221046.903358-2-lyude@redhat.com Signed-off-by: Danilo Krummrich <dakr@kernel.org> |
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Danilo Krummrich
|
cdeaeb9dd7 |
drm: nova-drm: add initial driver skeleton
Add the initial nova-drm driver skeleton.
nova-drm is connected to nova-core through the auxiliary bus and
implements the DRM parts of the nova driver stack.
For now, it implements the fundamental DRM abstractions, i.e. creates a
DRM device and registers it, exposing a three sample IOCTLs.
DRM_IOCTL_NOVA_GETPARAM
- provides the PCI bar size from the bar that maps the GPUs VRAM
from nova-core
DRM_IOCTL_NOVA_GEM_CREATE
- creates a new dummy DRM GEM object and returns a handle
DRM_IOCTL_NOVA_GEM_INFO
- provides metadata for the DRM GEM object behind a given handle
I implemented a small userspace test suite [1] that utilizes this
interface.
Link: https://gitlab.freedesktop.org/dakr/drm-test [1]
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Acked-by: Dave Airlie <airlied@redhat.com>
Link: https://lore.kernel.org/r/20250424160452.8070-3-dakr@kernel.org
[ Kconfig: depend on DRM=y rather than just DRM. - Danilo ]
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
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Miguel Ojeda
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42055939a3 |
rust: devres: fix doctest build under !CONFIG_PCI
The doctest requires `CONFIG_PCI`:
error[E0432]: unresolved import `kernel::pci`
--> rust/doctests_kernel_generated.rs:2689:44
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2689 | use kernel::{device::Core, devres::Devres, pci};
| ^^^ no `pci` in the root
|
note: found an item that was configured out
--> rust/kernel/lib.rs:96:9
note: the item is gated here
--> rust/kernel/lib.rs:95:1
Thus conditionally compile it (which still checks the syntax).
Fixes:
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Danilo Krummrich
|
f301cb978c |
rust: devres: implement Devres::access()
Implement a direct accessor for the data stored within the Devres for cases where we can prove that we own a reference to a Device<Bound> (i.e. a bound device) of the same device that was used to create the corresponding Devres container. Usually, when accessing the data stored within a Devres container, it is not clear whether the data has been revoked already due to the device being unbound and, hence, we have to try whether the access is possible and subsequently keep holding the RCU read lock for the duration of the access. However, when we can prove that we hold a reference to Device<Bound> matching the device the Devres container has been created with, we can guarantee that the device is not unbound for the duration of the lifetime of the Device<Bound> reference and, hence, it is not possible for the data within the Devres container to be revoked. Therefore, in this case, we can bypass the atomic check and the RCU read lock, which is a great optimization and simplification for drivers. Reviewed-by: Christian Schrefl <chrisi.schrefl@gmail.com> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Acked-by: Boqun Feng <boqun.feng@gmail.com> Reviewed-by: Joel Fernandes <joelagnelf@nvidia.com> Link: https://lore.kernel.org/r/20250428140137.468709-3-dakr@kernel.org Signed-off-by: Danilo Krummrich <dakr@kernel.org> |
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Danilo Krummrich
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46f91addfa |
rust: revocable: implement Revocable::access()
Implement an unsafe direct accessor for the data stored within the Revocable. This is useful for cases where we can prove that the data stored within the Revocable is not and cannot be revoked for the duration of the lifetime of the returned reference. Reviewed-by: Christian Schrefl <chrisi.schrefl@gmail.com> Reviewed-by: Benno Lossin <benno.lossin@proton.me> Acked-by: Miguel Ojeda <ojeda@kernel.org> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Acked-by: Boqun Feng <boqun.feng@gmail.com> Reviewed-by: Joel Fernandes <joelagnelf@nvidia.com> Link: https://lore.kernel.org/r/20250428140137.468709-2-dakr@kernel.org Signed-off-by: Danilo Krummrich <dakr@kernel.org> |
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Miguel Ojeda
|
fc55584e00 |
rust: device: conditionally expect dead_code for parent()
When `CONFIG_AUXILIARY_BUS` is disabled, `parent()` is still dead code:
error: method `parent` is never used
--> rust/kernel/device.rs:71:19
|
64 | impl<Ctx: DeviceContext> Device<Ctx> {
| ------------------------------------ method in this implementation
...
71 | pub(crate) fn parent(&self) -> Option<&Self> {
| ^^^^^^
|
= note: `-D dead-code` implied by `-D warnings`
= help: to override `-D warnings` add `#[allow(dead_code)]`
Thus reintroduce the `expect`, but now as a conditional one. Do so as
`dead_code` since that is narrower.
An `allow` would also be possible, but Danilo wants to catch new users
in the future [1].
Link: https://lore.kernel.org/rust-for-linux/aBE8qQrpXOfru_K3@pollux/ [1]
Fixes:
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Asahi Lina
|
c284d3e423 |
rust: drm: gem: Add GEM object abstraction
DRM GEM is the DRM memory management subsystem used by most modern drivers; add a Rust abstraction for DRM GEM. This includes the BaseObject trait, which contains operations shared by all GEM object classes. Signed-off-by: Asahi Lina <lina@asahilina.net> Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io> Reviewed-by: Lyude Paul <lyude@redhat.com> Link: https://lore.kernel.org/r/20250410235546.43736-8-dakr@kernel.org [ Rework of GEM object abstractions * switch to the Opaque<T> type * fix (mutable) references to struct drm_gem_object (which in this context is UB) * drop all custom reference types in favor of AlwaysRefCounted * bunch of minor changes and simplifications (e.g. IntoGEMObject trait) * write and fix safety and invariant comments * remove necessity for and convert 'as' casts * original source archive: https://archive.is/dD5SL - Danilo ] [ Fix missing CONFIG_DRM guards in rust/helpers/drm.c. - Danilo ] Signed-off-by: Danilo Krummrich <dakr@kernel.org> |
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Linus Torvalds
|
3ae7f5093e |
Driver core fixes for 6.15-rc4
Here are some small driver core fixes to resolve a number of reported
problems. Included in here are:
- driver core sync fix revert to resolve a much reported problem,
hopefully this is finally resolved
- MAINTAINERS file update, documenting that the driver-core tree is
now under a "shared" maintainership model, thanks to Rafael and
Danilo for offering to do this!
- auxbus documentation and MAINTAINERS file update
- MAINTAINERS file update for Rust PCI code
- firmware rust binding fixup
- software node link fix
All of these have been in linux-next for over a week with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-6.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core
Pull driver core fixes from Greg KH:
"Here are some small driver core fixes to resolve a number of reported
problems. Included in here are:
- driver core sync fix revert to resolve a much reported problem,
hopefully this is finally resolved
- MAINTAINERS file update, documenting that the driver-core tree is
now under a "shared" maintainership model, thanks to Rafael and
Danilo for offering to do this!
- auxbus documentation and MAINTAINERS file update
- MAINTAINERS file update for Rust PCI code
- firmware rust binding fixup
- software node link fix
All of these have been in linux-next for over a week with no reported
issues"
* tag 'driver-core-6.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core:
drivers/base/memory: Avoid overhead from for_each_present_section_nr()
software node: Prevent link creation failure from causing kobj reference count imbalance
device property: Add a note to the fwnode.h
drivers/base: Add myself as auxiliary bus reviewer
drivers/base: Extend documentation with preferred way to use auxbus
driver core: fix potential NULL pointer dereference in dev_uevent()
driver core: introduce device_set_driver() helper
Revert "drivers: core: synchronize really_probe() and dev_uevent()"
MAINTAINERS: update the location of the driver-core git tree
rust: firmware: Use `ffi::c_char` type in `FwFunc`
MAINTAINERS: pci: add entry for Rust PCI code
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Asahi Lina
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a98a73be9e |
rust: drm: file: Add File abstraction
A DRM File is the DRM counterpart to a kernel file structure, representing an open DRM file descriptor. Add a Rust abstraction to allow drivers to implement their own File types that implement the DriverFile trait. Reviewed-by: Maxime Ripard <mripard@kernel.org> Signed-off-by: Asahi Lina <lina@asahilina.net> Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io> Reviewed-by: Lyude Paul <lyude@redhat.com> Link: https://lore.kernel.org/r/20250410235546.43736-7-dakr@kernel.org [ Rework of drm::File * switch to the Opaque<T> type * fix (mutable) references to struct drm_file (which in this context is UB) * restructure and rename functions to align with common kernel schemes * write and fix safety and invariant comments * remove necessity for and convert 'as' casts * original source archive: https://archive.is/GH8oy - Danilo ] Signed-off-by: Danilo Krummrich <dakr@kernel.org> |
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Asahi Lina
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0600032c54 |
rust: drm: add DRM driver registration
Implement the DRM driver `Registration`. The `Registration` structure is responsible to register and unregister a DRM driver. It makes use of the `Devres` container in order to allow the `Registration` to be owned by devres, such that it is automatically dropped (and the DRM driver unregistered) once the parent device is unbound. Signed-off-by: Asahi Lina <lina@asahilina.net> Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io> Reviewed-by: Lyude Paul <lyude@redhat.com> Link: https://lore.kernel.org/r/20250410235546.43736-6-dakr@kernel.org [ Rework of drm::Registration * move VTABLE to drm::Device to prevent use-after-free bugs; VTABLE needs to be bound to the lifetime of drm::Device, not the drm::Registration * combine new() and register() to get rid of the registered boolean * remove file_operations * move struct drm_device creation to drm::Device * introduce Devres * original source archive: https://archive.is/Pl9ys - Danilo ] Signed-off-by: Danilo Krummrich <dakr@kernel.org> |
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Asahi Lina
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1e4b8896c0 |
rust: drm: add device abstraction
Implement the abstraction for a `struct drm_device`. A `drm::Device` creates a static const `struct drm_driver` filled with the data from the `drm::Driver` trait implementation of the actual driver creating the `drm::Device`. Reviewed-by: Maxime Ripard <mripard@kernel.org> Signed-off-by: Asahi Lina <lina@asahilina.net> Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io> Reviewed-by: Lyude Paul <lyude@redhat.com> Link: https://lore.kernel.org/r/20250410235546.43736-5-dakr@kernel.org [ Rewrite of drm::Device * full rewrite of the drm::Device abstraction using the subclassing pattern * original source archive: http://archive.today/5NxBo - Danilo ] Signed-off-by: Danilo Krummrich <dakr@kernel.org> |
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Asahi Lina
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07c9016085 |
rust: drm: add driver abstractions
Implement the DRM driver abstractions. The `Driver` trait provides the interface to the actual driver to fill in the driver specific data, such as the `DriverInfo`, driver features and IOCTLs. Reviewed-by: Maxime Ripard <mripard@kernel.org> Signed-off-by: Asahi Lina <lina@asahilina.net> Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io> Reviewed-by: Lyude Paul <lyude@redhat.com> Link: https://lore.kernel.org/r/20250410235546.43736-4-dakr@kernel.org [ MISC changes * remove unnecessary DRM features; make remaining ones crate private * add #[expect(unused)] to avoid warnings * add sealed trait * remove shmem::Object references * original source archive: https://archive.is/Pl9ys - Danilo ] Signed-off-by: Danilo Krummrich <dakr@kernel.org> |
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Asahi Lina
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9a69570682 |
rust: drm: ioctl: Add DRM ioctl abstraction
DRM drivers need to be able to declare which driver-specific ioctls they support. Add an abstraction implementing the required types and a helper macro to generate the ioctl definition inside the DRM driver. Note that this macro is not usable until further bits of the abstraction are in place (but it will not fail to compile on its own, if not called). Signed-off-by: Asahi Lina <lina@asahilina.net> Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io> Reviewed-by: Lyude Paul <lyude@redhat.com> Link: https://lore.kernel.org/r/20250410235546.43736-3-dakr@kernel.org [ MISC fixes * wrap raw_data in Opaque to avoid UB when creating a reference * fix IOCTL sample declaration * fix safety comment of IOCTL argument * original source archive: https://archive.is/LqHDQ - Danilo ] Signed-off-by: Danilo Krummrich <dakr@kernel.org> |
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Alexandre Courbot
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80e62fcea4 |
rust/revocable: add try_access_with() convenience method
Revocable::try_access() returns a guard through which the wrapped object
can be accessed. Code that can sleep is not allowed while the guard is
held; thus, it is common for the caller to explicitly drop it before
running sleepable code, e.g:
let b = bar.try_access()?;
let reg = b.readl(...);
// Don't forget this or things could go wrong!
drop(b);
something_that_might_sleep();
let b = bar.try_access()?;
let reg2 = b.readl(...);
This is arguably error-prone. try_access_with() provides an arguably
safer alternative, by taking a closure that is run while the guard is
held, and by dropping the guard automatically after the closure
completes. This way, code can be organized more clearly around the
critical sections and the risk of forgetting to release the guard when
needed is considerably reduced:
let reg = bar.try_access_with(|b| b.readl(...))?;
something_that_might_sleep();
let reg2 = bar.try_access_with(|b| b.readl(...))?;
The closure can return nothing, or any value including a Result which is
then wrapped inside the Option returned by try_access_with. Error
management is driver-specific, so users are encouraged to create their
own macros that map and flatten the returned values to something
appropriate for the code they are working on.
Suggested-by: Danilo Krummrich <dakr@kernel.org>
Reviewed-by: Benno Lossin <benno.lossin@proton.me>
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Joel Fernandes <joelagnelf@nvidia.com>
Acked-by: Miguel Ojeda <ojeda@kernel.org>
Link: https://lore.kernel.org/r/20250411-try_with-v4-1-f470ac79e2e2@nvidia.com
[ Link `None`, `Some`, `Option` in doc-comment. - Danilo ]
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
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Danilo Krummrich
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0d1803d25f |
rust: auxiliary: add auxiliary registration
Implement the `auxiliary::Registration` type, which provides an API to create and register new auxiliary devices in the system. Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Alice Ryhl <aliceryhl@google.com> Link: https://lore.kernel.org/r/20250414131934.28418-5-dakr@kernel.org Signed-off-by: Danilo Krummrich <dakr@kernel.org> |
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Danilo Krummrich
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ce735e73dd |
rust: auxiliary: add auxiliary device / driver abstractions
Implement the basic auxiliary abstractions required to implement a driver matching an auxiliary device. The design and implementation is analogous to PCI and platform and is based on the generic device / driver abstractions. Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Alice Ryhl <aliceryhl@google.com> Link: https://lore.kernel.org/r/20250414131934.28418-4-dakr@kernel.org [ Fix typos, `let _ =` => `drop()`, use `kernel::ffi`. - Danilo ] Signed-off-by: Danilo Krummrich <dakr@kernel.org> |
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Danilo Krummrich
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a4c9f71e34 |
rust: device: implement Device::parent()
Device::parent() returns a reference to the device' parent device, if any. Reviewed-by: Alice Ryhl <aliceryhl@google.com> Link: https://lore.kernel.org/r/20250414131934.28418-3-dakr@kernel.org Signed-off-by: Danilo Krummrich <dakr@kernel.org> |
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Danilo Krummrich
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9647b6c509 |
rust: types: add Opaque::zeroed
Analogous to `Opaque::uninit` add `Opaque::zeroed`, which sets the corresponding memory to zero. In contrast to `Opaque::uninit`, the corresponding value, depending on its type, may be initialized. Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Alice Ryhl <aliceryhl@google.com> Acked-by: Miguel Ojeda <ojeda@kernel.org> Link: https://lore.kernel.org/r/20250414131934.28418-2-dakr@kernel.org Signed-off-by: Danilo Krummrich <dakr@kernel.org> |
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Danilo Krummrich
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a38dfd60fe |
rust: platform: impl TryFrom<&Device> for &platform::Device
Implement TryFrom<&device::Device> for &Device. This allows us to get a &platform::Device from a generic &Device in a safe way; the conversion fails if the device' bus type does not match with the platform bus type. Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Benno Lossin <benno.lossin@proton.me> Link: https://lore.kernel.org/r/20250321214826.140946-4-dakr@kernel.org [ Support device context types, use dev_is_platform() helper. - Danilo ] Signed-off-by: Danilo Krummrich <dakr@kernel.org> |
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Danilo Krummrich
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a095d0d1e4 |
rust: pci: impl TryFrom<&Device> for &pci::Device
Implement TryFrom<&device::Device> for &Device. This allows us to get a &pci::Device from a generic &Device in a safe way; the conversion fails if the device' bus type does not match with the PCI bus type. Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Benno Lossin <benno.lossin@proton.me> Link: https://lore.kernel.org/r/20250321214826.140946-3-dakr@kernel.org [ Support device context types, use dev_is_pci() helper. - Danilo ] Signed-off-by: Danilo Krummrich <dakr@kernel.org> |
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Danilo Krummrich
|
7bd1710aac |
rust: dma: require a bound device
Require the Bound device context to be able to create new dma::CoherentAllocation instances. DMA memory allocations are only valid to be created for bound devices. Link: https://lore.kernel.org/r/20250413173758.12068-10-dakr@kernel.org Signed-off-by: Danilo Krummrich <dakr@kernel.org> |
||
|
Danilo Krummrich
|
f720efda2d |
rust: devres: require a bound device
Require the Bound device context to be able to a new Devres container. This ensures that we can't register devres callbacks for unbound devices. Link: https://lore.kernel.org/r/20250413173758.12068-9-dakr@kernel.org Signed-off-by: Danilo Krummrich <dakr@kernel.org> |
||
|
Danilo Krummrich
|
f2a399d7b6 |
rust: pci: move iomap_region() to impl Device<Bound>
Require the Bound device context to be able to call iomap_region() and iomap_region_sized(). Creating I/O mapping requires the device to be bound. Reviewed-by: Benno Lossin <benno.lossin@proton.me> Link: https://lore.kernel.org/r/20250413173758.12068-8-dakr@kernel.org Signed-off-by: Danilo Krummrich <dakr@kernel.org> |
||
|
Danilo Krummrich
|
f933b7489f |
rust: device: implement Bound device context
The Bound device context indicates that a device is bound to a driver. It must be used for APIs that require the device to be bound, such as Devres or dma::CoherentAllocation. Implement Bound and add the corresponding Deref hierarchy, as well as the corresponding ARef conversion for this device context. Reviewed-by: Benno Lossin <benno.lossin@proton.me> Link: https://lore.kernel.org/r/20250413173758.12068-7-dakr@kernel.org [ Add missing `::` prefix in macros. - Danilo ] Signed-off-by: Danilo Krummrich <dakr@kernel.org> |
||
|
Danilo Krummrich
|
3edaefbf2b |
rust: pci: preserve device context in AsRef
Since device::Device has a generic over its context, preserve this device context in AsRef. For instance, when calling pci::Device<Core> the new AsRef implementation returns device::Device<Core>. Reviewed-by: Benno Lossin <benno.lossin@proton.me> Link: https://lore.kernel.org/r/20250413173758.12068-6-dakr@kernel.org Signed-off-by: Danilo Krummrich <dakr@kernel.org> |
||
|
Danilo Krummrich
|
da6c47c6cb |
rust: platform: preserve device context in AsRef
Since device::Device has a generic over its context, preserve this device context in AsRef. For instance, when calling platform::Device<Core> the new AsRef implementation returns device::Device<Core>. Reviewed-by: Benno Lossin <benno.lossin@proton.me> Link: https://lore.kernel.org/r/20250413173758.12068-5-dakr@kernel.org Signed-off-by: Danilo Krummrich <dakr@kernel.org> |
||
|
Danilo Krummrich
|
d32e4c24a7 |
rust: device: implement device context for Device
Analogous to bus specific device, implement the DeviceContext generic for generic devices. This is used for APIs that work with generic devices (such as Devres) to evaluate the device's context. Reviewed-by: Benno Lossin <benno.lossin@proton.me> Link: https://lore.kernel.org/r/20250413173758.12068-4-dakr@kernel.org Signed-off-by: Danilo Krummrich <dakr@kernel.org> |
||
|
Danilo Krummrich
|
fbb92b6a53 |
rust: device: implement impl_device_context_into_aref!
Implement a macro to implement all From conversions of a certain device to ARef<Device>. This avoids unnecessary boiler plate code for every device implementation. Reviewed-by: Benno Lossin <benno.lossin@proton.me> Link: https://lore.kernel.org/r/20250413173758.12068-3-dakr@kernel.org [ Add missing `::` prefix in macros. - Danilo ] Signed-off-by: Danilo Krummrich <dakr@kernel.org> |
||
|
Danilo Krummrich
|
cb271c2edf |
rust: device: implement impl_device_context_deref!
The Deref hierarchy for device context generics is the same for every (bus specific) device. Implement those with a generic macro to avoid duplicated boiler plate code and ensure the correct Deref hierarchy for every device implementation. Co-developed-by: Benno Lossin <benno.lossin@proton.me> Signed-off-by: Benno Lossin <benno.lossin@proton.me> Reviewed-by: Christian Schrefl <chrisi.schrefl@gmail.com> Link: https://lore.kernel.org/r/20250413173758.12068-2-dakr@kernel.org [ Add missing `::` prefix in macros. - Danilo ] Signed-off-by: Danilo Krummrich <dakr@kernel.org> |
||
|
FUJITA Tomonori
|
c1b4071ec3 |
rust: helpers: Add dma_alloc_attrs() and dma_free_attrs()
Add dma_alloc_attrs() and dma_free_attrs() helpers to fix a build
error when CONFIG_HAS_DMA is not enabled.
Note that when CONFIG_HAS_DMA is enabled, dma_alloc_attrs() and
dma_free_attrs() are included in both bindings_generated.rs and
bindings_helpers_generated.rs. The former takes precedence so behavior
remains unchanged in that case.
This fixes the following build error on UML:
error[E0425]: cannot find function `dma_alloc_attrs` in crate `bindings`
--> rust/kernel/dma.rs:171:23
|
171 | bindings::dma_alloc_attrs(
| ^^^^^^^^^^^^^^^ help: a function with a similar name exists: `dma_alloc_pages`
|
::: rust/bindings/bindings_generated.rs:44568:5
|
44568 | / pub fn dma_alloc_pages(
44569 | | dev: *mut device,
44570 | | size: usize,
44571 | | dma_handle: *mut dma_addr_t,
44572 | | dir: dma_data_direction,
44573 | | gfp: gfp_t,
44574 | | ) -> *mut page;
| |___________________- similarly named function `dma_alloc_pages` defined here
error[E0425]: cannot find function `dma_free_attrs` in crate `bindings`
--> rust/kernel/dma.rs:293:23
|
293 | bindings::dma_free_attrs(
| ^^^^^^^^^^^^^^ help: a function with a similar name exists: `dma_free_pages`
|
::: rust/bindings/bindings_generated.rs:44577:5
|
44577 | / pub fn dma_free_pages(
44578 | | dev: *mut device,
44579 | | size: usize,
44580 | | page: *mut page,
44581 | | dma_handle: dma_addr_t,
44582 | | dir: dma_data_direction,
44583 | | );
| |______- similarly named function `dma_free_pages` defined here
Fixes:
|
||
|
FUJITA Tomonori
|
584e61452f |
rust: helpers: Remove volatile qualifier from io helpers
Remove the `volatile` qualifier used with __iomem in helper functions
in io.c. These helper functions are just wrappers around the
corresponding accessors so they are unnecessary.
This fixes the following UML build error with CONFIG_RUST enabled:
In file included from rust/helpers/helpers.c:19:
rust/helpers/io.c:12:10: error: passing 'volatile void *' to parameter of type 'void *' discards qualifiers [-Werror,-Wincompatible-pointer-types-discards-qualifiers]
12 | iounmap(addr);
| ^~~~
arch/um/include/asm/io.h:19:42: note: passing argument to parameter 'addr' here
19 | static inline void iounmap(void __iomem *addr)
| ^
1 error generated.
[ Arnd explains [1] that removing the qualifier is the way forward
(thanks!):
Rihgt, I tried this last week when it came up first, removing the
'volatile' annotations in the asm-generic/io.h header and then
all the ones that caused build regressions on arm/arm64/x86
randconfig and allmodconfig builds. This patch is a little
longer than my original version as I did run into a few
regressions later.
As far as I can tell, none of these volatile annotations have
any actual effect, and most of them date back to ancient kernels
where this may have been required.
Leaving it out of the rust interface is clearly the right way,
and it shouldn't be too hard to upstream the changes below
when we need to, but I also don't see any priority to send these.
If anyone wants to help out, I can send them the whole patch.
I created an issue [2] in case someone wants to help. - Miguel ]
Fixes:
|
||
|
Christian Schrefl
|
53bd978016 |
rust: firmware: Use ffi::c_char type in FwFunc
The `FwFunc` struct contains an function with a char pointer argument, for which a `*const u8` pointer was used. This is not really the "proper" type for this, so use a `*const kernel::ffi::c_char` pointer instead. This has no real functionality changes, since now `kernel::ffi::c_char` (which bindgen uses for `char`) is now a type alias to `u8` anyways, but before commit |
||
|
Sami Tolvanen
|
c59026c057 |
rust: kbuild: Don't export __pfx symbols
With CONFIG_PREFIX_SYMBOLS, objtool adds __pfx prefix symbols
to claim the compiler emitted call padding bytes. When
CONFIG_X86_KERNEL_IBT is not selected, the symbols are added to
individual object files and for Rust objects, they end up being
exported, resulting in warnings with CONFIG_GENDWARFKSYMS as the
symbols have no debugging information:
warning: gendwarfksyms: symbol_print_versions: no information for symbol __pfx_rust_helper_put_task_struct
warning: gendwarfksyms: symbol_print_versions: no information for symbol __pfx_rust_helper_task_euid
warning: gendwarfksyms: symbol_print_versions: no information for symbol __pfx_rust_helper_readq_relaxed
...
Filter out the __pfx prefix from exported symbols similarly to
the existing __cfi and __odr_asan prefixes.
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Cc: stable@vger.kernel.org
Fixes:
|
||
|
Miguel Ojeda
|
193b5a7574 |
rust: pin-init: use Markdown autolinks in Rust comments
"Normal" comments in Rust (`//`) are also formatted in Markdown, like the documentation (`///` and `//!`), see Documentation/rust/coding-guidelines.rst Thus use Markdown autolinks for a couple links that were missing it. It also helps to get proper linking in some software like kitty [1]. Suggested-by: Benno Lossin <benno.lossin@proton.me> Link: https://github.com/Rust-for-Linux/pin-init/pull/32#discussion_r2023103712 [1] Signed-off-by: Miguel Ojeda <ojeda@kernel.org> Link: |
||
|
Miguel Ojeda
|
3c75fff196 |
rust: pin-init: alloc: restrict impl ZeroableOption for Box to T: Sized
Similar to what was done for `Zeroable<NonNull<T>>` in commit |
||
|
Linus Torvalds
|
f4d2ef4825 |
Kbuild updates for v6.15
- Improve performance in gendwarfksyms
- Remove deprecated EXTRA_*FLAGS and KBUILD_ENABLE_EXTRA_GCC_CHECKS
- Support CONFIG_HEADERS_INSTALL for ARCH=um
- Use more relative paths to sources files for better reproducibility
- Support the loong64 Debian architecture
- Add Kbuild bash completion
- Introduce intermediate vmlinux.unstripped for architectures that need
static relocations to be stripped from the final vmlinux
- Fix versioning in Debian packages for -rc releases
- Treat missing MODULE_DESCRIPTION() as an error
- Convert Nios2 Makefiles to use the generic rule for built-in DTB
- Add debuginfo support to the RPM package
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Merge tag 'kbuild-v6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada:
- Improve performance in gendwarfksyms
- Remove deprecated EXTRA_*FLAGS and KBUILD_ENABLE_EXTRA_GCC_CHECKS
- Support CONFIG_HEADERS_INSTALL for ARCH=um
- Use more relative paths to sources files for better reproducibility
- Support the loong64 Debian architecture
- Add Kbuild bash completion
- Introduce intermediate vmlinux.unstripped for architectures that need
static relocations to be stripped from the final vmlinux
- Fix versioning in Debian packages for -rc releases
- Treat missing MODULE_DESCRIPTION() as an error
- Convert Nios2 Makefiles to use the generic rule for built-in DTB
- Add debuginfo support to the RPM package
* tag 'kbuild-v6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (40 commits)
kbuild: rpm-pkg: build a debuginfo RPM
kconfig: merge_config: use an empty file as initfile
nios2: migrate to the generic rule for built-in DTB
rust: kbuild: skip `--remap-path-prefix` for `rustdoc`
kbuild: pacman-pkg: hardcode module installation path
kbuild: deb-pkg: don't set KBUILD_BUILD_VERSION unconditionally
modpost: require a MODULE_DESCRIPTION()
kbuild: make all file references relative to source root
x86: drop unnecessary prefix map configuration
kbuild: deb-pkg: add comment about future removal of KDEB_COMPRESS
kbuild: Add a help message for "headers"
kbuild: deb-pkg: remove "version" variable in mkdebian
kbuild: deb-pkg: fix versioning for -rc releases
Documentation/kbuild: Fix indentation in modules.rst example
x86: Get rid of Makefile.postlink
kbuild: Create intermediate vmlinux build with relocations preserved
kbuild: Introduce Kconfig symbol for linking vmlinux with relocations
kbuild: link-vmlinux.sh: Make output file name configurable
kbuild: do not generate .tmp_vmlinux*.map when CONFIG_VMLINUX_MAP=y
Revert "kheaders: Ignore silly-rename files"
...
|
||
|
Linus Torvalds
|
e8b4712852 |
ARM and clkdev updates for 6.15-rc1
- Simplify ARM_MMU_KEEP usage - Add Rust support for ARM architecture version 7 - Align IPIs reported in /proc/interrupts - require linker to support KEEP within OVERLAY - add KEEP() for ARM vectors - add __printf() attribute for clkdev functions -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEuNNh8scc2k/wOAE+9OeQG+StrGQFAmfqn2AACgkQ9OeQG+St rGQ3RA//Vqi7xRiH6DUj7K1igG0aOeFgzGa8v1nnBfjMbij9w7hi7ufskH78bAoG e/KVK4ZafALbAsVme+mPMe8ABS0pvRiJL5A9EE3CNWF1i6a3udnEM9Mo8WmmYhux ZNaS5dKr3SP8vEZBZ5B9N4qRgJjgfkkuEoHj3TDtm1PMTGliHt6Qqe4Y/HJA0l+j Nsn946je8NAlUblPOyit4Q8n//7unbaO0bMWxFlptjBit5bWp7ttGwJpm3bHrepF qlM7pYaYFetQvmZuHS9ZYY6kuAI1XylqzdHoQxA53HfUnPCGaq0ncfqBMkTw/+ly 8K99djKSOW3wWjyPY42YMSyIN/y0EnzmTrTJjE5QEropjABFVQzLAYNOs+kqdIQM EjynSqFf2elwkt5hcjLDeZHof0n0IekPN11olAq+opP0sY4IawFgmQK8HZxkFz0d 6FA5+TB1Tl7wxjcrh0hjz9HYg4yj2pJSy4LPw+mEssTcbmFDN6vYDOeXA31yqe/n eeJ/qnbPHEgcAxEu4ZkyRjpZiHABpM4uAHsQu66OUiRVlc5dt5XhduIF8QXNZYu8 9s4NnNp5WVoqinWUz9Or/0puKlKOej48kNwyYMUcR0ZX4QxM5tqRL9Ih3N81/xgl Ia6JYWu085gm5aHThhqMR7/vD29iJW42/nTw8xYBrJWmgwaAFMk= =XL1+ -----END PGP SIGNATURE----- Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linux Pull ARM and clkdev updates from Russell King: - Simplify ARM_MMU_KEEP usage - Add Rust support for ARM architecture version 7 - Align IPIs reported in /proc/interrupts - require linker to support KEEP within OVERLAY - add KEEP() for ARM vectors - add __printf() attribute for clkdev functions * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linux: ARM: 9445/1: clkdev: Mark some functions with __printf() attribute ARM: 9444/1: add KEEP() keyword to ARM_VECTORS ARM: 9443/1: Require linker to support KEEP within OVERLAY for DCE ARM: 9442/1: smp: Fix IPI alignment in /proc/interrupts ARM: 9441/1: rust: Enable Rust support for ARMv7 ARM: 9439/1: arm32: simplify ARM_MMU_KEEP usage |
||
|
Linus Torvalds
|
1c241cba19 |
LoongArch changes for v6.15
1, Add jump table support for objtool; 2, Always select HAVE_VIRT_CPU_ACCOUNTING_GEN; 3, Enable UBSAN (Undefined Behavior Sanitizer); 4, Increase MAX_IO_PICS up to 8; 5, Increase ARCH_DMA_MINALIGN up to 16; 6, Fix and improve BPF JIT; 7, Fix and improve vDSO implementation; 8, Update the default config file; 9, Some bug fixes and other small changes. -----BEGIN PGP SIGNATURE----- iQJKBAABCAA0FiEEzOlt8mkP+tbeiYy5AoYrw/LiJnoFAmfpIOoWHGNoZW5odWFj YWlAa2VybmVsLm9yZwAKCRAChivD8uImehgBD/4zyWfVImn3H+2JFavzROyIdi/e Bx5PNePi+u2sIqDMc15URvxgfi7fUrRPgYYYuk2+lqLITAvdhq4FZdxhUIaWX+Tv Fn+MLck/AcXNn5jaQ8VZ7BC9xD6JG59+zcCKAHD9xiM5fmFD+rCj9PBMtYsVq/K9 EifMfudfUGLodZno2uY75Ee61ZwLDpLEJbIzrY+IPzE9KFWTsehAvZlLGZ8/y+CD CsYUxQpFjoi5Ge1O/iFyvM2lPI8YukhJjC25nR+14ClS2WrbKIDo3Nn/+Ey8+W92 z1k/8ftc57L+lMtLE0G/3vC++qw+U22RLT+w6CGA7BJpDZodfRE/1FADTEdW3xsE G0L2TjHNWnYradiK4M1kGd2tbQZz/Qyv6nPyUbqRw7Ok+axvCgxk3zNWdmiKK8Ld kG6nQUUV5hHd+zhpEQ4zD/U6ULM6Rl3UNNppld6ouN3oJLAwrVDL3mFwVq7zagRZ lvoFA1V9zJcrnfThRPIwmh25LkmEcrf5Y5SOggVeKK4GF3tB1sge8gV99UG8+om+ zVSeI65VytPafTfdqJlna1yt0ql/hvxgXWDcgmN2mIUZpbcBdJllLqF+ANbedCgs KRIGt7NuWCfAxDXavG5ShE6W0GqBwsBSapqcNu+KQK9nBK7cF28C0tkWJubTcrA3 SNqhZKdnalwQVdEnYA== =9xTj -----END PGP SIGNATURE----- Merge tag 'loongarch-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson Pull LoongArch updates from Huacai Chen: - Always select HAVE_VIRT_CPU_ACCOUNTING_GEN - Enable UBSAN (Undefined Behavior Sanitizer) - Increase MAX_IO_PICS up to 8 - Increase ARCH_DMA_MINALIGN up to 16 - Fix and improve BPF JIT - Fix and improve vDSO implementation - Update the default config file - Some bug fixes and other small changes * tag 'loongarch-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson: LoongArch: Update Loongson-3 default config file LoongArch: vDSO: Make use of the t8 register for vgetrandom-chacha LoongArch: vDSO: Remove --hash-style=sysv LoongArch: BPF: Don't override subprog's return value LoongArch: BPF: Use move_addr() for BPF_PSEUDO_FUNC LoongArch: BPF: Fix off-by-one error in build_prologue() LoongArch: Rework the arch_kgdb_breakpoint() implementation LoongArch: Fix device node refcount leak in fdt_cpu_clk_init() LoongArch: Increase ARCH_DMA_MINALIGN up to 16 LoongArch: Increase MAX_IO_PICS up to 8 LoongArch: Fix help text of CMDLINE_EXTEND in Kconfig LoongArch: Enable UBSAN (Undefined Behavior Sanitizer) LoongArch: Always select HAVE_VIRT_CPU_ACCOUNTING_GEN rust: Fix enabling Rust and building with GCC for LoongArch |
||
|
Linus Torvalds
|
25601e8544 |
Char/Misc/IIO driver updates for 6.15-rc1
Here is the big set of char, misc, iio, and other smaller driver
subsystems for 6.15-rc1. Lots of stuff in here, including:
- loads of IIO changes and driver updates
- counter driver updates
- w1 driver updates
- faux conversions for some drivers that were abusing the platform bus
interface
- coresight driver updates
- rust miscdevice binding updates based on real-world-use
- other minor driver updates
All of these have been in linux-next with no reported issues for quite a
while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char / misc / IIO driver updates from Greg KH:
"Here is the big set of char, misc, iio, and other smaller driver
subsystems for 6.15-rc1. Lots of stuff in here, including:
- loads of IIO changes and driver updates
- counter driver updates
- w1 driver updates
- faux conversions for some drivers that were abusing the platform
bus interface
- coresight driver updates
- rust miscdevice binding updates based on real-world-use
- other minor driver updates
All of these have been in linux-next with no reported issues for quite
a while"
* tag 'char-misc-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (292 commits)
samples: rust_misc_device: fix markup in top-level docs
Coresight: Fix a NULL vs IS_ERR() bug in probe
misc: lis3lv02d: convert to use faux_device
tlclk: convert to use faux_device
regulator: dummy: convert to use the faux device interface
bus: mhi: host: Fix race between unprepare and queue_buf
coresight: configfs: Constify struct config_item_type
doc: iio: ad7380: describe offload support
iio: ad7380: add support for SPI offload
iio: light: Add check for array bounds in veml6075_read_int_time_ms
iio: adc: ti-ads7924 Drop unnecessary function parameters
staging: iio: ad9834: Use devm_regulator_get_enable()
staging: iio: ad9832: Use devm_regulator_get_enable()
iio: gyro: bmg160_spi: add of_match_table
dt-bindings: iio: adc: Add i.MX94 and i.MX95 support
iio: adc: ad7768-1: remove unnecessary locking
Documentation: ABI: add wideband filter type to sysfs-bus-iio
iio: adc: ad7768-1: set MOSI idle state to prevent accidental reset
iio: adc: ad7768-1: Fix conversion result sign
iio: adc: ad7124: Benefit of dev = indio_dev->dev.parent in ad7124_parse_channel_config()
...
|
||
|
Linus Torvalds
|
2cd5769fb0 |
Driver core updates for 6.15-rc1
Here is the big set of driver core updates for 6.15-rc1. Lots of stuff
happened this development cycle, including:
- kernfs scaling changes to make it even faster thanks to rcu
- bin_attribute constify work in many subsystems
- faux bus minor tweaks for the rust bindings
- rust binding updates for driver core, pci, and platform busses,
making more functionaliy available to rust drivers. These are all
due to people actually trying to use the bindings that were in 6.14.
- make Rafael and Danilo full co-maintainers of the driver core
codebase
- other minor fixes and updates.
This has been in linux-next for a while now, with the only reported
issue being some merge conflicts with the rust tree. Depending on which
tree you pull first, you will have conflicts in one of them. The merge
resolution has been in linux-next as an example of what to do, or can be
found here:
https://lore.kernel.org/r/CANiq72n3Xe8JcnEjirDhCwQgvWoE65dddWecXnfdnbrmuah-RQ@mail.gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updatesk from Greg KH:
"Here is the big set of driver core updates for 6.15-rc1. Lots of stuff
happened this development cycle, including:
- kernfs scaling changes to make it even faster thanks to rcu
- bin_attribute constify work in many subsystems
- faux bus minor tweaks for the rust bindings
- rust binding updates for driver core, pci, and platform busses,
making more functionaliy available to rust drivers. These are all
due to people actually trying to use the bindings that were in
6.14.
- make Rafael and Danilo full co-maintainers of the driver core
codebase
- other minor fixes and updates"
* tag 'driver-core-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (52 commits)
rust: platform: require Send for Driver trait implementers
rust: pci: require Send for Driver trait implementers
rust: platform: impl Send + Sync for platform::Device
rust: pci: impl Send + Sync for pci::Device
rust: platform: fix unrestricted &mut platform::Device
rust: pci: fix unrestricted &mut pci::Device
rust: device: implement device context marker
rust: pci: use to_result() in enable_device_mem()
MAINTAINERS: driver core: mark Rafael and Danilo as co-maintainers
rust/kernel/faux: mark Registration methods inline
driver core: faux: only create the device if probe() succeeds
rust/faux: Add missing parent argument to Registration::new()
rust/faux: Drop #[repr(transparent)] from faux::Registration
rust: io: fix devres test with new io accessor functions
rust: io: rename `io::Io` accessors
kernfs: Move dput() outside of the RCU section.
efi: rci2: mark bin_attribute as __ro_after_init
rapidio: constify 'struct bin_attribute'
firmware: qemu_fw_cfg: constify 'struct bin_attribute'
powerpc/perf/hv-24x7: Constify 'struct bin_attribute'
...
|
||
|
Linus Torvalds
|
4e82c87058 |
Rust changes for v6.15
Toolchain and infrastructure:
- Extract the 'pin-init' API from the 'kernel' crate and make it into
a standalone crate.
In order to do this, the contents are rearranged so that they can
easily be kept in sync with the version maintained out-of-tree that
other projects have started to use too (or plan to, like QEMU).
This will reduce the maintenance burden for Benno, who will now have
his own sub-tree, and will simplify future expected changes like the
move to use 'syn' to simplify the implementation.
- Add '#[test]'-like support based on KUnit.
We already had doctests support based on KUnit, which takes the
examples in our Rust documentation and runs them under KUnit.
Now, we are adding the beginning of the support for "normal" tests,
similar to those the '#[test]' tests in userspace Rust. For instance:
#[kunit_tests(my_suite)]
mod tests {
#[test]
fn my_test() {
assert_eq!(1 + 1, 2);
}
}
Unlike with doctests, the 'assert*!'s do not map to the KUnit
assertion APIs yet.
- Check Rust signatures at compile time for functions called from C by
name.
In particular, introduce a new '#[export]' macro that can be placed
in the Rust function definition. It will ensure that the function
declaration on the C side matches the signature on the Rust function:
#[export]
pub unsafe extern "C" fn my_function(a: u8, b: i32) -> usize {
// ...
}
The macro essentially forces the compiler to compare the types of
the actual Rust function and the 'bindgen'-processed C signature.
These cases are rare so far. In the future, we may consider
introducing another tool, 'cbindgen', to generate C headers
automatically. Even then, having these functions explicitly marked
may be a good idea anyway.
- Enable the 'raw_ref_op' Rust feature: it is already stable, and
allows us to use the new '&raw' syntax, avoiding a couple macros.
After everyone has migrated, we will disallow the macros.
- Pass the correct target to 'bindgen' on Usermode Linux.
- Fix 'rusttest' build in macOS.
'kernel' crate:
- New 'hrtimer' module: add support for setting up intrusive timers
without allocating when starting the timer. Add support for
'Pin<Box<_>>', 'Arc<_>', 'Pin<&_>' and 'Pin<&mut _>' as pointer types
for use with timer callbacks. Add support for setting clock source
and timer mode.
- New 'dma' module: add a simple DMA coherent allocator abstraction and
a test sample driver.
- 'list' module: make the linked list 'Cursor' point between elements,
rather than at an element, which is more convenient to us and allows
for cursors to empty lists; and document it with examples of how to
perform common operations with the provided methods.
- 'str' module: implement a few traits for 'BStr' as well as the
'strip_prefix()' method.
- 'sync' module: add 'Arc::as_ptr'.
- 'alloc' module: add 'Box::into_pin'.
- 'error' module: extend the 'Result' documentation, including a few
examples on different ways of handling errors, a warning about using
methods that may panic, and links to external documentation.
'macros' crate:
- 'module' macro: add the 'authors' key to support multiple authors.
The original key will be kept until everyone has migrated.
Documentation:
- Add error handling sections.
MAINTAINERS:
- Add Danilo Krummrich as reviewer of the Rust "subsystem".
- Add 'RUST [PIN-INIT]' entry with Benno Lossin as maintainer. It has
its own sub-tree.
- Add sub-tree for 'RUST [ALLOC]'.
- Add 'DMA MAPPING HELPERS DEVICE DRIVER API [RUST]' entry with Abdiel
Janulgue as primary maintainer. It will go through the sub-tree of
the 'RUST [ALLOC]' entry.
- Add 'HIGH-RESOLUTION TIMERS [RUST]' entry with Andreas Hindborg as
maintainer. It has its own sub-tree.
And a few other cleanups and improvements.
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Merge tag 'rust-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux
Pull Rust updates from Miguel Ojeda:
"Toolchain and infrastructure:
- Extract the 'pin-init' API from the 'kernel' crate and make it into
a standalone crate.
In order to do this, the contents are rearranged so that they can
easily be kept in sync with the version maintained out-of-tree that
other projects have started to use too (or plan to, like QEMU).
This will reduce the maintenance burden for Benno, who will now
have his own sub-tree, and will simplify future expected changes
like the move to use 'syn' to simplify the implementation.
- Add '#[test]'-like support based on KUnit.
We already had doctests support based on KUnit, which takes the
examples in our Rust documentation and runs them under KUnit.
Now, we are adding the beginning of the support for "normal" tests,
similar to those the '#[test]' tests in userspace Rust. For
instance:
#[kunit_tests(my_suite)]
mod tests {
#[test]
fn my_test() {
assert_eq!(1 + 1, 2);
}
}
Unlike with doctests, the 'assert*!'s do not map to the KUnit
assertion APIs yet.
- Check Rust signatures at compile time for functions called from C
by name.
In particular, introduce a new '#[export]' macro that can be placed
in the Rust function definition. It will ensure that the function
declaration on the C side matches the signature on the Rust
function:
#[export]
pub unsafe extern "C" fn my_function(a: u8, b: i32) -> usize {
// ...
}
The macro essentially forces the compiler to compare the types of
the actual Rust function and the 'bindgen'-processed C signature.
These cases are rare so far. In the future, we may consider
introducing another tool, 'cbindgen', to generate C headers
automatically. Even then, having these functions explicitly marked
may be a good idea anyway.
- Enable the 'raw_ref_op' Rust feature: it is already stable, and
allows us to use the new '&raw' syntax, avoiding a couple macros.
After everyone has migrated, we will disallow the macros.
- Pass the correct target to 'bindgen' on Usermode Linux.
- Fix 'rusttest' build in macOS.
'kernel' crate:
- New 'hrtimer' module: add support for setting up intrusive timers
without allocating when starting the timer. Add support for
'Pin<Box<_>>', 'Arc<_>', 'Pin<&_>' and 'Pin<&mut _>' as pointer
types for use with timer callbacks. Add support for setting clock
source and timer mode.
- New 'dma' module: add a simple DMA coherent allocator abstraction
and a test sample driver.
- 'list' module: make the linked list 'Cursor' point between
elements, rather than at an element, which is more convenient to us
and allows for cursors to empty lists; and document it with
examples of how to perform common operations with the provided
methods.
- 'str' module: implement a few traits for 'BStr' as well as the
'strip_prefix()' method.
- 'sync' module: add 'Arc::as_ptr'.
- 'alloc' module: add 'Box::into_pin'.
- 'error' module: extend the 'Result' documentation, including a few
examples on different ways of handling errors, a warning about
using methods that may panic, and links to external documentation.
'macros' crate:
- 'module' macro: add the 'authors' key to support multiple authors.
The original key will be kept until everyone has migrated.
Documentation:
- Add error handling sections.
MAINTAINERS:
- Add Danilo Krummrich as reviewer of the Rust "subsystem".
- Add 'RUST [PIN-INIT]' entry with Benno Lossin as maintainer. It has
its own sub-tree.
- Add sub-tree for 'RUST [ALLOC]'.
- Add 'DMA MAPPING HELPERS DEVICE DRIVER API [RUST]' entry with
Abdiel Janulgue as primary maintainer. It will go through the
sub-tree of the 'RUST [ALLOC]' entry.
- Add 'HIGH-RESOLUTION TIMERS [RUST]' entry with Andreas Hindborg as
maintainer. It has its own sub-tree.
And a few other cleanups and improvements"
* tag 'rust-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux: (71 commits)
rust: dma: add `Send` implementation for `CoherentAllocation`
rust: macros: fix `make rusttest` build on macOS
rust: block: refactor to use `&raw mut`
rust: enable `raw_ref_op` feature
rust: uaccess: name the correct function
rust: rbtree: fix comments referring to Box instead of KBox
rust: hrtimer: add maintainer entry
rust: hrtimer: add clocksource selection through `ClockId`
rust: hrtimer: add `HrTimerMode`
rust: hrtimer: implement `HrTimerPointer` for `Pin<Box<T>>`
rust: alloc: add `Box::into_pin`
rust: hrtimer: implement `UnsafeHrTimerPointer` for `Pin<&mut T>`
rust: hrtimer: implement `UnsafeHrTimerPointer` for `Pin<&T>`
rust: hrtimer: add `hrtimer::ScopedHrTimerPointer`
rust: hrtimer: add `UnsafeHrTimerPointer`
rust: hrtimer: allow timer restart from timer handler
rust: str: implement `strip_prefix` for `BStr`
rust: str: implement `AsRef<BStr>` for `[u8]` and `BStr`
rust: str: implement `Index` for `BStr`
rust: str: implement `PartialEq` for `BStr`
...
|
||
|
WANG Rui
|
13c23cb4ed |
rust: Fix enabling Rust and building with GCC for LoongArch
This patch fixes a build issue on LoongArch when Rust is enabled and compiled with GCC by explicitly setting the bindgen target and skipping C flags that Clang doesn't support. Cc: stable@vger.kernel.org Acked-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: WANG Rui <wangrui@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> |
||
|
Linus Torvalds
|
0c86b42439 |
drm for 6.15-rc1
uapi:
- add mediatek tiled fourcc
- add support for notifying userspace on device wedged
new driver:
- appletbdrm: support for Apple Touchbar displays on m1/m2
- nova-core: skeleton rust driver to develop nova inside off
firmware:
- add some rust firmware pieces
rust:
- add 'LocalModule' type alias
component:
- add helper to query bound status
fbdev:
- fbtft: remove access to page->index
media:
- cec: tda998x: import driver from drm
dma-buf:
- add fast path for single fence merging
tests:
- fix lockdep warnings
atomic:
- allow full modeset on connector changes
- clarify semantics of allow_modeset and drm_atomic_helper_check
- async-flip: support on arbitary planes
- writeback: fix UAF
- Document atomic-state history
format-helper:
- support ARGB8888 to ARGB4444 conversions
buddy:
- fix multi-root cleanup
ci:
- update IGT
dp:
- support extended wake timeout
- mst: fix RAD to string conversion
- increase DPCD eDP control CAP size to 5 bytes
- add DPCD eDP v1.5 definition
- add helpers for LTTPR transparent mode
panic:
- encode QR code according to Fido 2.2
scheduler:
- add parameter struct for init
- improve job peek/pop operations
- optimise drm_sched_job struct layout
ttm:
- refactor pool allocation
- add helpers for TTM shrinker
panel-orientation:
- add a bunch of new quirks
panel:
- convert panels to multi-style functions
- edp: Add support for B140UAN04.4, BOE NV140FHM-NZ, CSW MNB601LS1-3,
LG LP079QX1-SP0V, MNE007QS3-7, STA 116QHD024002, Starry 116KHD024006,
Lenovo T14s Gen6 Snapdragon
- himax-hx83102: Add support for CSOT PNA957QT1-1, Kingdisplay
kd110n11-51ie, Starry 2082109qfh040022-50e
- visionox-r66451: use multi-style MIPI-DSI functions
- raydium-rm67200: Add driver for Raydium RM67200
- simple: Add support for BOE AV123Z7M-N17, BOE AV123Z7M-N17
- sony-td4353-jdi: Use MIPI-DSI multi-func interface
- summit: Add driver for Apple Summit display panel
- visionox-rm692e5: Add driver for Visionox RM692E5
bridge:
- pass full atomic state to various callbacks
- adv7511: Report correct capabilities
- it6505: Fix HDCP V compare
- snd65dsi86: fix device IDs
- nwl-dsi: set bridge type
- ti-sn65si83: add error recovery and set bridge type
- synopsys: add HDMI audio support
xe:
- support device-wedged event
- add mmap support for PCI memory barrier
- perf pmu integration and expose per-engien activity
- add EU stall sampling support
- GPU SVM and Xe SVM implementation
- use TTM shrinker
- add survivability mode to allow the driver to do
firmware updates in critical failure states
- PXP HWDRM support for MTL and LNL
- expose package/vram temps over hwmon
- enable DP tunneling
- drop mmio_ext abstraction
- Reject BO evcition if BO is bound to current VM
- Xe suballocator improvements
- re-use display vmas when possible
- add GuC Buffer Cache abstraction
- PCI ID update for Panther Lake and Battlemage
- Enable SRIOV for Panther Lake
- Refactor VRAM manager location
i915:
- enable extends wake timeout
- support device-wedged event
- Enable DP 128b/132b SST DSC
- FBC dirty rectangle support for display version 30+
- convert i915/xe to drm client setup
- Compute HDMI PLLS for rates not in fixed tables
- Allow DSB usage when PSR is enabled on LNL+
- Enable panel replay without full modeset
- Enable async flips with compressed buffers on ICL+
- support luminance based brightness via DPCD for eDP
- enable VRR enable/disable without full modeset
- allow GuC SLPC default strategies on MTL+ for performance
- lots of display refactoring in move to struct intel_display
amdgpu:
- add device wedged event
- support async page flips on overlay planes
- enable broadcast RGB drm property
- add info ioctl for virt mode
- OEM i2c support for RGB lights
- GC 11.5.2 + 11.5.3 support
- SDMA 6.1.3 support
- NBIO 7.9.1 + 7.11.2 support
- MMHUB 1.8.1 + 3.3.2 support
- DCN 3.6.0 support
- Add dynamic workload profile switching for GC 10-12
- support larger VBIOS sizes
- Mark gttsize parameters as deprecated
- Initial JPEG queue resset support
amdkfd:
- add KFD per process flags for setting precision
- sync pasid values between KGD and KFD
- improve GTT/VRAM handling for APUs
- fix user queue validation on GC7/8
- SDMA queue reset support
raedeon:
- rs400 hyperz fix
i2c:
- td998x: drop platform_data, split driver into media and bridge
ast:
- transmitter chip detection refactoring
- vbios display mode refactoring
- astdp: fix connection status and filter unsupported modes
- cursor handling refactoring
imagination:
- check job dependencies with sched helper
ivpu:
- improve command queue handling
- use workqueue for IRQ handling
- add support HW fault injection
- locking fixes
mgag200:
- add support for G200eH5
msm:
- dpu: add concurrent writeback support for DPU 10.x+
- use LTTPR helpers
- GPU:
- Fix obscure GMU suspend failure
- Expose syncobj timeline support
- Extend GPU devcoredump with pagetable info
- a623 support
- Fix a6xx gen1/gen2 indexed-register blocks in gpu snapshot / devcoredump
- Display:
- Add cpu-cfg interconnect paths on SM8560 and SM8650
- Introduce KMS OMMU fault handler, causing devcoredump snapshot
- Fixed error pointer dereference in msm_kms_init_aspace()
- DPU:
- Fix mode_changing handling
- Add writeback support on SM6150 (QCS615)
- Fix DSC programming in 1:1:1 topology
- Reworked hardware resource allocation, moving it to the CRTC code
- Enabled support for Concurrent WriteBack (CWB) on SM8650
- Enabled CDM blocks on all relevant platforms
- Reworked debugfs interface for BW/clocks debugging
- Clear perf params before calculating bw
- Support YUV formats on writeback
- Fixed double inclusion
- Fixed writeback in YUV formats when using cloned output, Dropped
wb2_formats_rgb
- Corrected dpu_crtc_check_mode_changed and struct dpu_encoder_virt
kerneldocs
- Fixed uninitialized variable in dpu_crtc_kickoff_clone_mode()
- DSI:
- DSC-related fixes
- Rework clock programming
- DSI PHY:
- Fix 7nm (and lower) PHY programming
- Add proper DT schema definitions for DSI PHY clocks
- HDMI:
- Rework the driver, enabling the use of the HDMI Connector framework
- Bindings:
- Added eDP PHY on SA8775P
nouveau:
- move drm_slave_encoder interface into driver
- nvkm: refactor GSP RPC
- use LTTPR helpers
mediatek:
- HDMI fixup and refinement
- add MT8188 dsc compatible
- MT8365 SoC support
panthor:
- Expose sizes of intenral BOs via fdinfo
- Fix race between reset and suspend
- Improve locking
qaic:
- Add support for AIC200
renesas:
- Fix limits in DT bindings
rockchip:
- support rk3562-mali
- rk3576: Add HDMI support
- vop2: Add new display modes on RK3588 HDMI0 up to 4K
- Don't change HDMI reference clock rate
- Fix DT bindings
- analogix_dp: add eDP support
- fix shutodnw
solomon:
- Set SPI device table to silence warnings
- Fix pixel and scanline encoding
v3d:
- handle clock
vc4:
- Use drm_exec
- Use dma-resv for wait-BO ioctl
- Remove seqno infrastructure
virtgpu:
- Support partial mappings of GEM objects
- Reserve VGA resources during initialization
- Fix UAF in virtgpu_dma_buf_free_obj()
- Add panic support
vkms:
- Switch to a managed modesetting pipeline
- Add support for ARGB8888
- fix UAf
xlnx:
- Set correct DMA segment size
- use mutex guards
- Fix error handling
- Fix docs
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Merge tag 'drm-next-2025-03-28' of https://gitlab.freedesktop.org/drm/kernel
Pull drm updates from Dave Airlie:
"Outside of drm there are some rust patches from Danilo who maintains
that area in here, and some pieces for drm header check tests.
The major things in here are a new driver supporting the touchbar
displays on M1/M2, the nova-core stub driver which is just the vehicle
for adding rust abstractions and start developing a real driver inside
of.
xe adds support for SVM with a non-driver specific SVM core
abstraction that will hopefully be useful for other drivers, along
with support for shrinking for TTM devices. I'm sure xe and AMD
support new devices, but the pipeline depth on these things is hard to
know what they end up being in the marketplace!
uapi:
- add mediatek tiled fourcc
- add support for notifying userspace on device wedged
new driver:
- appletbdrm: support for Apple Touchbar displays on m1/m2
- nova-core: skeleton rust driver to develop nova inside off
firmware:
- add some rust firmware pieces
rust:
- add 'LocalModule' type alias
component:
- add helper to query bound status
fbdev:
- fbtft: remove access to page->index
media:
- cec: tda998x: import driver from drm
dma-buf:
- add fast path for single fence merging
tests:
- fix lockdep warnings
atomic:
- allow full modeset on connector changes
- clarify semantics of allow_modeset and drm_atomic_helper_check
- async-flip: support on arbitary planes
- writeback: fix UAF
- Document atomic-state history
format-helper:
- support ARGB8888 to ARGB4444 conversions
buddy:
- fix multi-root cleanup
ci:
- update IGT
dp:
- support extended wake timeout
- mst: fix RAD to string conversion
- increase DPCD eDP control CAP size to 5 bytes
- add DPCD eDP v1.5 definition
- add helpers for LTTPR transparent mode
panic:
- encode QR code according to Fido 2.2
scheduler:
- add parameter struct for init
- improve job peek/pop operations
- optimise drm_sched_job struct layout
ttm:
- refactor pool allocation
- add helpers for TTM shrinker
panel-orientation:
- add a bunch of new quirks
panel:
- convert panels to multi-style functions
- edp: Add support for B140UAN04.4, BOE NV140FHM-NZ, CSW MNB601LS1-3,
LG LP079QX1-SP0V, MNE007QS3-7, STA 116QHD024002, Starry
116KHD024006, Lenovo T14s Gen6 Snapdragon
- himax-hx83102: Add support for CSOT PNA957QT1-1, Kingdisplay
kd110n11-51ie, Starry 2082109qfh040022-50e
- visionox-r66451: use multi-style MIPI-DSI functions
- raydium-rm67200: Add driver for Raydium RM67200
- simple: Add support for BOE AV123Z7M-N17, BOE AV123Z7M-N17
- sony-td4353-jdi: Use MIPI-DSI multi-func interface
- summit: Add driver for Apple Summit display panel
- visionox-rm692e5: Add driver for Visionox RM692E5
bridge:
- pass full atomic state to various callbacks
- adv7511: Report correct capabilities
- it6505: Fix HDCP V compare
- snd65dsi86: fix device IDs
- nwl-dsi: set bridge type
- ti-sn65si83: add error recovery and set bridge type
- synopsys: add HDMI audio support
xe:
- support device-wedged event
- add mmap support for PCI memory barrier
- perf pmu integration and expose per-engien activity
- add EU stall sampling support
- GPU SVM and Xe SVM implementation
- use TTM shrinker
- add survivability mode to allow the driver to do firmware updates
in critical failure states
- PXP HWDRM support for MTL and LNL
- expose package/vram temps over hwmon
- enable DP tunneling
- drop mmio_ext abstraction
- Reject BO evcition if BO is bound to current VM
- Xe suballocator improvements
- re-use display vmas when possible
- add GuC Buffer Cache abstraction
- PCI ID update for Panther Lake and Battlemage
- Enable SRIOV for Panther Lake
- Refactor VRAM manager location
i915:
- enable extends wake timeout
- support device-wedged event
- Enable DP 128b/132b SST DSC
- FBC dirty rectangle support for display version 30+
- convert i915/xe to drm client setup
- Compute HDMI PLLS for rates not in fixed tables
- Allow DSB usage when PSR is enabled on LNL+
- Enable panel replay without full modeset
- Enable async flips with compressed buffers on ICL+
- support luminance based brightness via DPCD for eDP
- enable VRR enable/disable without full modeset
- allow GuC SLPC default strategies on MTL+ for performance
- lots of display refactoring in move to struct intel_display
amdgpu:
- add device wedged event
- support async page flips on overlay planes
- enable broadcast RGB drm property
- add info ioctl for virt mode
- OEM i2c support for RGB lights
- GC 11.5.2 + 11.5.3 support
- SDMA 6.1.3 support
- NBIO 7.9.1 + 7.11.2 support
- MMHUB 1.8.1 + 3.3.2 support
- DCN 3.6.0 support
- Add dynamic workload profile switching for GC 10-12
- support larger VBIOS sizes
- Mark gttsize parameters as deprecated
- Initial JPEG queue resset support
amdkfd:
- add KFD per process flags for setting precision
- sync pasid values between KGD and KFD
- improve GTT/VRAM handling for APUs
- fix user queue validation on GC7/8
- SDMA queue reset support
raedeon:
- rs400 hyperz fix
i2c:
- td998x: drop platform_data, split driver into media and bridge
ast:
- transmitter chip detection refactoring
- vbios display mode refactoring
- astdp: fix connection status and filter unsupported modes
- cursor handling refactoring
imagination:
- check job dependencies with sched helper
ivpu:
- improve command queue handling
- use workqueue for IRQ handling
- add support HW fault injection
- locking fixes
mgag200:
- add support for G200eH5
msm:
- dpu: add concurrent writeback support for DPU 10.x+
- use LTTPR helpers
- GPU:
- Fix obscure GMU suspend failure
- Expose syncobj timeline support
- Extend GPU devcoredump with pagetable info
- a623 support
- Fix a6xx gen1/gen2 indexed-register blocks in gpu snapshot /
devcoredump
- Display:
- Add cpu-cfg interconnect paths on SM8560 and SM8650
- Introduce KMS OMMU fault handler, causing devcoredump snapshot
- Fixed error pointer dereference in msm_kms_init_aspace()
- DPU:
- Fix mode_changing handling
- Add writeback support on SM6150 (QCS615)
- Fix DSC programming in 1:1:1 topology
- Reworked hardware resource allocation, moving it to the CRTC code
- Enabled support for Concurrent WriteBack (CWB) on SM8650
- Enabled CDM blocks on all relevant platforms
- Reworked debugfs interface for BW/clocks debugging
- Clear perf params before calculating bw
- Support YUV formats on writeback
- Fixed double inclusion
- Fixed writeback in YUV formats when using cloned output, Dropped
wb2_formats_rgb
- Corrected dpu_crtc_check_mode_changed and struct dpu_encoder_virt
kerneldocs
- Fixed uninitialized variable in dpu_crtc_kickoff_clone_mode()
- DSI:
- DSC-related fixes
- Rework clock programming
- DSI PHY:
- Fix 7nm (and lower) PHY programming
- Add proper DT schema definitions for DSI PHY clocks
- HDMI:
- Rework the driver, enabling the use of the HDMI Connector
framework
- Bindings:
- Added eDP PHY on SA8775P
nouveau:
- move drm_slave_encoder interface into driver
- nvkm: refactor GSP RPC
- use LTTPR helpers
mediatek:
- HDMI fixup and refinement
- add MT8188 dsc compatible
- MT8365 SoC support
panthor:
- Expose sizes of intenral BOs via fdinfo
- Fix race between reset and suspend
- Improve locking
qaic:
- Add support for AIC200
renesas:
- Fix limits in DT bindings
rockchip:
- support rk3562-mali
- rk3576: Add HDMI support
- vop2: Add new display modes on RK3588 HDMI0 up to 4K
- Don't change HDMI reference clock rate
- Fix DT bindings
- analogix_dp: add eDP support
- fix shutodnw
solomon:
- Set SPI device table to silence warnings
- Fix pixel and scanline encoding
v3d:
- handle clock
vc4:
- Use drm_exec
- Use dma-resv for wait-BO ioctl
- Remove seqno infrastructure
virtgpu:
- Support partial mappings of GEM objects
- Reserve VGA resources during initialization
- Fix UAF in virtgpu_dma_buf_free_obj()
- Add panic support
vkms:
- Switch to a managed modesetting pipeline
- Add support for ARGB8888
- fix UAf
xlnx:
- Set correct DMA segment size
- use mutex guards
- Fix error handling
- Fix docs"
* tag 'drm-next-2025-03-28' of https://gitlab.freedesktop.org/drm/kernel: (1762 commits)
drm/amd/pm: Update feature list for smu_v13_0_6
drm/amdgpu: Add parameter documentation for amdgpu_sync_fence
drm/amdgpu/discovery: optionally use fw based ip discovery
drm/amdgpu/discovery: use specific ip_discovery.bin for legacy asics
drm/amdgpu/discovery: check ip_discovery fw file available
drm/amd/pm: Remove unnecessay UQ10 to UINT conversion
drm/amd/pm: Remove unnecessay UQ10 to UINT conversion
drm/amdgpu/sdma_v4_4_2: update VM flush implementation for SDMA
drm/amdgpu: Optimize VM invalidation engine allocation and synchronize GPU TLB flush
drm/amd/amdgpu: Increase max rings to enable SDMA page ring
drm/amdgpu: Decode deferred error type in gfx aca bank parser
drm/amdgpu/gfx11: Add Cleaner Shader Support for GFX11.5 GPUs
drm/amdgpu/mes: clean up SDMA HQD loop
drm/amdgpu/mes: enable compute pipes across all MEC
drm/amdgpu/mes: drop MES 10.x leftovers
drm/amdgpu/mes: optimize compute loop handling
drm/amdgpu/sdma: guilty tracking is per instance
drm/amdgpu/sdma: fix engine reset handling
drm/amdgpu: remove invalid usage of sched.ready
drm/amdgpu: add cleaner shader trace point
...
|
||
|
Christian Schrrefl
|
ccb8ce5268 |
ARM: 9441/1: rust: Enable Rust support for ARMv7
This commit allows building ARMv7 kernels with Rust support. The rust core library expects some __eabi_... functions that are not implemented in the kernel. Those functions are some float operations and __aeabi_uldivmod. For now those are implemented with define_panicking_intrinsics!. This is based on the code by Sven Van Asbroeck from the original rust branch and inspired by the AArch version by Jamie Cunliffe. I have tested the rust samples and a custom simple MMIO module on hardware (De1SoC FPGA + Arm A9 CPU). Tested-by: Rudraksha Gupta <guptarud@gmail.com> Reviewed-by: Alice Ryhl <aliceryhl@google.com> Acked-by: Miguel Ojeda <ojeda@kernel.org> Tested-by: Miguel Ojeda <ojeda@kernel.org> Acked-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Christian Schrefl <chrisi.schrefl@gmail.com> Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> |
||
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Linus Torvalds
|
054570267d |
lsm/stable-6.15 PR 20250323
-----BEGIN PGP SIGNATURE----- iQJIBAABCAAyFiEES0KozwfymdVUl37v6iDy2pc3iXMFAmfgWgMUHHBhdWxAcGF1 bC1tb29yZS5jb20ACgkQ6iDy2pc3iXNW5RAAvCDq5gBtY0aTNlULe637EVLSh+t8 PkSzHzu/NlzU6BfjtwSm2fuML8welTGxSwUPxUzMCI91gPdkGeFktefavT3xa+QI BHWROn7fEJ/KmRZvngPeIkgLr5xhF5nBJmc/Jw71qem20zRzNgJnpzMX16d10Phx dxd2xOO1qM3bv6Z9RcIssZRGaN+PHngpWWg+0B69XuaBUso87S6NDyKNn1XPmvoz as96k+Wk/xAZGVEeCbs/+H5rBx6DLg+FfTRa06Oh4BFsqedpkDPxLrTgCJGJkA0H dsK6O/993zvjx0Jn4ZPoJ9n35S82BmkCsz4bGq1xVl6FYUiMcm3/8yO41wllS+w4 j+RlTU/RIdB7n8EKyMMl1hj1stTvt3Bi9F5Cbf7ZEv0snfR00K4KVpi17jnFjUHv kpOiEtXZb/NGQip7UAuUq0PisfqbiO4jJurYHRetDgv1WCy6+C8ufM5t6I+cnvmG VG+dlxcW+rDIn6bLRVuGi9TJRsQ6eox9ipa+qEKNNiOXgftELcgT7m74nAS5m0uv n5rDa221nPXecEB0X7d6YUFk711lly90dbelNeLrmv1w6jl8L1PpS1oBaW+UzGu9 46eGBd6pzu9otvK9WVyDEdotDOCrgH0sd7pTetqDhLJZ7KrGwyyqO2gD/JroUKcC lnxBQwPnat86iI8= =oxfV -----END PGP SIGNATURE----- Merge tag 'lsm-pr-20250323' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm Pull lsm updates from Paul Moore: - Various minor updates to the LSM Rust bindings Changes include marking trivial Rust bindings as inlines and comment tweaks to better reflect the LSM hooks. - Add LSM/SELinux access controls to io_uring_allowed() Similar to the io_uring_disabled sysctl, add a LSM hook to io_uring_allowed() to enable LSMs a simple way to enforce security policy on the use of io_uring. This pull request includes SELinux support for this new control using the io_uring/allowed permission. - Remove an unused parameter from the security_perf_event_open() hook The perf_event_attr struct parameter was not used by any currently supported LSMs, remove it from the hook. - Add an explicit MAINTAINERS entry for the credentials code We've seen problems in the past where patches to the credentials code sent by non-maintainers would often languish on the lists for multiple months as there was no one explicitly tasked with the responsibility of reviewing and/or merging credentials related code. Considering that most of the code under security/ has a vested interest in ensuring that the credentials code is well maintained, I'm volunteering to look after the credentials code and Serge Hallyn has also volunteered to step up as an official reviewer. I posted the MAINTAINERS update as a RFC to LKML in hopes that someone else would jump up with an "I'll do it!", but beyond Serge it was all crickets. - Update Stephen Smalley's old email address to prevent confusion This includes a corresponding update to the mailmap file. * tag 'lsm-pr-20250323' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm: mailmap: map Stephen Smalley's old email addresses lsm: remove old email address for Stephen Smalley MAINTAINERS: add Serge Hallyn as a credentials reviewer MAINTAINERS: add an explicit credentials entry cred,rust: mark Credential methods inline lsm,rust: reword "destroy" -> "release" in SecurityCtx lsm,rust: mark SecurityCtx methods inline perf: Remove unnecessary parameter of security check lsm: fix a missing security_uring_allowed() prototype io_uring,lsm,selinux: add LSM hooks for io_uring_setup() io_uring: refactor io_uring_allowed() |
||
|
Miguel Ojeda
|
e6ea10d5db |
Rust hrtimer API for v6.15
Introduce Rust support for the `hrtimer` subsystem:
- Add a way to use the `hrtimer` subsystem from Rust. Rust code can now set up
intrusive timers without allocating when starting the timer.
- Add support for `Pin<Box<_>>`, `Arc<_>`, `Pin<&_>` and `Pin<&mut _>` as
pointer types for use with timer callbacks.
- Add support for setting clock source and timer mode.
`kernel` crate:
- Add `Arc::as_ptr` for converting an `Arc` to a raw pointer. This is a
dependency for the `hrtimer` API.
- Add `Box::into_pin` for converting a `Box<_>` into a `Pin<Box<_>>` to align
with Rust `alloc`. This is a dependency for the `hrtimer` API.
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Merge tag 'rust-hrtimer-for-v6.15-v3' of https://github.com/Rust-for-Linux/linux into rust-next
Pull rust-hrtimer updates from Andreas Hindborg:
"Introduce Rust support for the 'hrtimer' subsystem:
- Add a way to use the 'hrtimer' subsystem from Rust. Rust code can
now set up intrusive timers without allocating when starting the
timer.
- Add support for 'Pin<Box<_>>', 'Arc<_>', 'Pin<&_>' and
'Pin<&mut _>' as pointer types for use with timer callbacks.
- Add support for setting clock source and timer mode.
'kernel' crate:
- Add 'Arc::as_ptr' for converting an 'Arc' to a raw pointer. This is
a dependency for the 'hrtimer' API.
- Add 'Box::into_pin' for converting a 'Box<_>' into a 'Pin<Box<_>>'
to align with Rust 'alloc'. This is a dependency for the 'hrtimer'
API."
* tag 'rust-hrtimer-for-v6.15-v3' of https://github.com/Rust-for-Linux/linux:
rust: hrtimer: add maintainer entry
rust: hrtimer: add clocksource selection through `ClockId`
rust: hrtimer: add `HrTimerMode`
rust: hrtimer: implement `HrTimerPointer` for `Pin<Box<T>>`
rust: alloc: add `Box::into_pin`
rust: hrtimer: implement `UnsafeHrTimerPointer` for `Pin<&mut T>`
rust: hrtimer: implement `UnsafeHrTimerPointer` for `Pin<&T>`
rust: hrtimer: add `hrtimer::ScopedHrTimerPointer`
rust: hrtimer: add `UnsafeHrTimerPointer`
rust: hrtimer: allow timer restart from timer handler
rust: hrtimer: implement `HrTimerPointer` for `Arc`
rust: sync: add `Arc::as_ptr`
rust: hrtimer: introduce hrtimer support
|