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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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Lyude PaulandDanilo Krummrich
0023a1e8d0
Now that we have the ability to represent the context in which a DRM device is in at compile-time, we can start carrying around this context with GEM object types in order to allow a driver to safely create GEM objects before a DRM device has registered with userspace. Signed-off-by: Lyude Paul <lyude@redhat.com> Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Link: https://patch.msgid.link/20260507220044.3204919-4-lyude@redhat.com Signed-off-by: Danilo Krummrich <dakr@kernel.org>
44 lines
949 B
Rust
44 lines
949 B
Rust
// SPDX-License-Identifier: GPL-2.0 or MIT
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//! GEM buffer object management for the Tyr driver.
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//!
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//! This module provides buffer object (BO) management functionality using
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//! DRM's GEM subsystem with shmem backing.
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use kernel::{
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drm::{
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gem,
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DeviceContext, //
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},
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prelude::*, //
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};
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use crate::driver::{
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TyrDrmDevice,
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TyrDrmDriver, //
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};
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/// Tyr's DriverObject type for GEM objects.
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#[pin_data]
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pub(crate) struct BoData {
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flags: u32,
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}
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/// Provides a way to pass arguments when creating BoData
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/// as required by the gem::DriverObject trait.
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pub(crate) struct BoCreateArgs {
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flags: u32,
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}
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impl gem::DriverObject for BoData {
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type Driver = TyrDrmDriver;
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type Args = BoCreateArgs;
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fn new<Ctx: DeviceContext>(
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_dev: &TyrDrmDevice<Ctx>,
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_size: usize,
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args: BoCreateArgs,
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) -> impl PinInit<Self, Error> {
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try_pin_init!(Self { flags: args.flags })
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}
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}
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