diff options
| author | Christian König <christian.koenig@amd.com> | 2021-11-16 17:20:45 +0300 |
|---|---|---|
| committer | Christian König <christian.koenig@amd.com> | 2022-04-06 18:38:25 +0300 |
| commit | c8d4c18bfbc4ab467188dbe45cc8155759f49d9e (patch) | |
| tree | c0ecbde97d8d89bed2d7f87a93788bc86d5e56ea /drivers/gpu/drm/vmwgfx | |
| parent | 20b734c11243ecf97030345b51ff37fcb7dd060f (diff) | |
| download | linux-c8d4c18bfbc4ab467188dbe45cc8155759f49d9e.tar.xz | |
dma-buf/drivers: make reserving a shared slot mandatory v4
Audit all the users of dma_resv_add_excl_fence() and make sure they
reserve a shared slot also when only trying to add an exclusive fence.
This is the next step towards handling the exclusive fence like a
shared one.
v2: fix missed case in amdgpu
v3: and two more radeon, rename function
v4: add one more case to TTM, fix i915 after rebase
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20220406075132.3263-2-christian.koenig@amd.com
Diffstat (limited to 'drivers/gpu/drm/vmwgfx')
| -rw-r--r-- | drivers/gpu/drm/vmwgfx/vmwgfx_bo.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c b/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c index 31aecc46624b..fe13aa8b4a64 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c @@ -747,16 +747,22 @@ void vmw_bo_fence_single(struct ttm_buffer_object *bo, struct vmw_fence_obj *fence) { struct ttm_device *bdev = bo->bdev; - struct vmw_private *dev_priv = container_of(bdev, struct vmw_private, bdev); + int ret; - if (fence == NULL) { + if (fence == NULL) vmw_execbuf_fence_commands(NULL, dev_priv, &fence, NULL); + else + dma_fence_get(&fence->base); + + ret = dma_resv_reserve_fences(bo->base.resv, 1); + if (!ret) dma_resv_add_excl_fence(bo->base.resv, &fence->base); - dma_fence_put(&fence->base); - } else - dma_resv_add_excl_fence(bo->base.resv, &fence->base); + else + /* Last resort fallback when we are OOM */ + dma_fence_wait(&fence->base, false); + dma_fence_put(&fence->base); } |