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| author | Asahi Lina <lina+kernel@asahilina.net> | 2026-03-20 19:08:26 +0300 |
|---|---|---|
| committer | Danilo Krummrich <dakr@kernel.org> | 2026-03-27 22:46:56 +0300 |
| commit | 9b836641d3bfa1ab096ec6263f0fa6880cb9c5ef (patch) | |
| tree | 6735a7d810e778cf7ca057efdd7634ceb1f0890c | |
| parent | bdf6b22fd52954f5ac88689eeaf960ac9687b78c (diff) | |
| download | linux-9b836641d3bfa1ab096ec6263f0fa6880cb9c5ef.tar.xz | |
rust: helpers: Add bindings/wrappers for dma_resv_lock
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>
| -rw-r--r-- | MAINTAINERS | 1 | ||||
| -rw-r--r-- | rust/bindings/bindings_helper.h | 1 | ||||
| -rw-r--r-- | rust/helpers/dma-resv.c | 14 | ||||
| -rw-r--r-- | rust/helpers/helpers.c | 1 |
4 files changed, 17 insertions, 0 deletions
diff --git a/MAINTAINERS b/MAINTAINERS index 55bf6bf26107..b01791963e25 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -7534,6 +7534,7 @@ F: include/linux/*fence.h F: include/linux/dma-buf.h F: include/linux/dma-buf/ F: include/linux/dma-resv.h +F: rust/helpers/dma-resv.c K: \bdma_(?:buf|fence|resv)\b DMA GENERIC OFFLOAD ENGINE SUBSYSTEM diff --git a/rust/bindings/bindings_helper.h b/rust/bindings/bindings_helper.h index dbb765a9fdbd..563863d96d38 100644 --- a/rust/bindings/bindings_helper.h +++ b/rust/bindings/bindings_helper.h @@ -52,6 +52,7 @@ #include <linux/device/faux.h> #include <linux/dma-direction.h> #include <linux/dma-mapping.h> +#include <linux/dma-resv.h> #include <linux/errname.h> #include <linux/ethtool.h> #include <linux/fdtable.h> diff --git a/rust/helpers/dma-resv.c b/rust/helpers/dma-resv.c new file mode 100644 index 000000000000..71914d8241e2 --- /dev/null +++ b/rust/helpers/dma-resv.c @@ -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); +} diff --git a/rust/helpers/helpers.c b/rust/helpers/helpers.c index a53929ce52a3..b6b20ad2e0e6 100644 --- a/rust/helpers/helpers.c +++ b/rust/helpers/helpers.c @@ -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" |