diff options
| author |   Christian König <christian.koenig@amd.com> | 2022-07-15 10:34:13 +0200 |
|---|---|---|
| committer | Christian König <christian.koenig@amd.com> | 2022-09-26 12:07:01 +0200 |
| commit | d6d36cf2f8efd78455286050d6d8f9a8969d63b3 (patch) | |
| tree | fe177b0324de12d5a1c35d8210f4c7e401017c28 | |
| parent | drm/ast: make ast_modeset static (diff) | |
| download | linux-dev-d6d36cf2f8efd78455286050d6d8f9a8969d63b3.tar.xz linux-dev-d6d36cf2f8efd78455286050d6d8f9a8969d63b3.zip | |
drm/ttm: add dma_resv_assert_held() calls to vmap/vunmap
Let's make sure nobody is calling those functions without holding the
appropriate locks.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220715111533.467012-2-christian.koenig@amd.com
| -rw-r--r-- | drivers/gpu/drm/ttm/ttm_bo_util.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c index 1530982338e9..497ee1fdbad7 100644 --- a/drivers/gpu/drm/ttm/ttm_bo_util.c +++ b/drivers/gpu/drm/ttm/ttm_bo_util.c @@ -402,6 +402,8 @@ int ttm_bo_vmap(struct ttm_buffer_object *bo, struct iosys_map *map) struct ttm_resource *mem = bo->resource; int ret; + dma_resv_assert_held(bo->base.resv); + ret = ttm_mem_io_reserve(bo->bdev, mem); if (ret) return ret; @@ -460,6 +462,8 @@ void ttm_bo_vunmap(struct ttm_buffer_object *bo, struct iosys_map *map) { struct ttm_resource *mem = bo->resource; + dma_resv_assert_held(bo->base.resv); + if (iosys_map_is_null(map)) return; |