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rust/drm/gem: Add DriverAllocImpl type alias

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This is just a type alias that resolves into the AllocImpl for a given
T: drm:💎:DriverObject.

Signed-off-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com>
Link: https://patch.msgid.link/20260507220044.3204919-3-lyude@redhat.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
This commit is contained in:
Lyude Paul
2026-05-07 17:59:20 -04:00
committed by Danilo Krummrich
parent 571d4242c4
commit 43a5d04a74
1 changed files with 7 additions and 2 deletions
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9
rust/kernel/drm/gem/mod.rs
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@@ -73,6 +73,11 @@ unsafe fn dec_ref(obj: core::ptr::NonNull<Self>) {
/// [`DriverFile`]: drm::file::DriverFile
pub type DriverFile<T> = drm::File<<<T as DriverObject>::Driver as drm::Driver>::File>;
/// A type alias for retrieving the current [`AllocImpl`] for a given [`DriverObject`].
///
/// [`Driver`]: drm::Driver
pub type DriverAllocImpl<T> = <<T as DriverObject>::Driver as drm::Driver>::Object;
/// GEM object functions, which must be implemented by drivers.
pub trait DriverObject: Sync + Send + Sized {
/// Parent `Driver` for this object.
@@ -89,12 +94,12 @@ fn new(
) -> impl PinInit<Self, Error>;
/// Open a new handle to an existing object, associated with a File.
fn open(_obj: &<Self::Driver as drm::Driver>::Object, _file: &DriverFile<Self>) -> Result {
fn open(_obj: &DriverAllocImpl<Self>, _file: &DriverFile<Self>) -> Result {
Ok(())
}
/// Close a handle to an existing object, associated with a File.
fn close(_obj: &<Self::Driver as drm::Driver>::Object, _file: &DriverFile<Self>) {}
fn close(_obj: &DriverAllocImpl<Self>, _file: &DriverFile<Self>) {}
}
/// Trait that represents a GEM object subtype