Am 05.12.2017 um 15:41 schrieb Andrey Grodzovsky:
> Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky at amd.com>
Reviewed-by: Christian König <christian.koenig at amd.com>
> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c | 9 ++++++---
> 1 file changed, 6 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c
> index f3d1a25..84fd367 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c
> @@ -120,7 +120,7 @@ static void amdgpu_sync_keep_later(struct dma_fence **keep,
> * Tries to add the fence to an existing hash entry. Returns true when an entry
> * was found, false otherwise.
> */
> -static bool amdgpu_sync_add_later(struct amdgpu_sync *sync, struct dma_fence *f)
> +static bool amdgpu_sync_add_later(struct amdgpu_sync *sync, struct dma_fence *f, bool explicit)
> {
> struct amdgpu_sync_entry *e;
>
> @@ -129,6 +129,10 @@ static bool amdgpu_sync_add_later(struct amdgpu_sync *sync, struct dma_fence *f)
> continue;
>
> amdgpu_sync_keep_later(&e->fence, f);
> +
> + /* Preserve eplicit flag to not loose pipe line sync */
> + e->explicit |= explicit;
> +
> return true;
> }
> return false;
> @@ -148,12 +152,11 @@ int amdgpu_sync_fence(struct amdgpu_device *adev, struct amdgpu_sync *sync,
>
> if (!f)
> return 0;
> -
> if (amdgpu_sync_same_dev(adev, f) &&
> amdgpu_sync_get_owner(f) == AMDGPU_FENCE_OWNER_VM)
> amdgpu_sync_keep_later(&sync->last_vm_update, f);
>
> - if (amdgpu_sync_add_later(sync, f))
> + if (amdgpu_sync_add_later(sync, f, explicit))
> return 0;
>
> e = kmem_cache_alloc(amdgpu_sync_slab, GFP_KERNEL);
