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path: root/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c
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Diffstat (limited to 'drivers/gpu/drm/vmwgfx/vmwgfx_bo.c')
-rw-r--r--drivers/gpu/drm/vmwgfx/vmwgfx_bo.c16
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);
}