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rust: helpers: Add bindings/wrappers for dma_resv_lock

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This is just for basic usage in the DRM shmem abstractions for implied
locking, not intended as a full DMA Reservation abstraction yet.

Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: Christian König <christian.koenig@amd.com>
Signed-off-by: Asahi Lina <lina+kernel@asahilina.net>
Signed-off-by: Daniel Almeida <daniel.almeida@collabora.com>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Signed-off-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Janne Grunau <j@jannau.net>
Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com>
Acked-by: David Airlie <airlied@gmail.com>
Signed-off-by: Alice Ryhl <aliceryhl@google.com>
Link: https://patch.msgid.link/20260320-gpuvm-rust-v5-2-76fd44f17a87@google.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
This commit is contained in:
Asahi Lina
2026-03-20 16:08:26 +00:00
committed by Danilo Krummrich
parent bdf6b22fd5
commit 9b836641d3
4 changed files with 17 additions and 0 deletions
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14
rust/helpers/dma-resv.c Normal file
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@@ -0,0 +1,14 @@
// SPDX-License-Identifier: GPL-2.0
#include <linux/dma-resv.h>
__rust_helper
int rust_helper_dma_resv_lock(struct dma_resv *obj, struct ww_acquire_ctx *ctx)
{
return dma_resv_lock(obj, ctx);
}
__rust_helper void rust_helper_dma_resv_unlock(struct dma_resv *obj)
{
dma_resv_unlock(obj);
}

1
rust/helpers/helpers.c
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@@ -28,6 +28,7 @@
#include "cred.c"
#include "device.c"
#include "dma.c"
#include "dma-resv.c"
#include "drm.c"
#include "err.c"
#include "irq.c"