Re: [PATCH 1/1] drm/ttm: Ignore signaled move fences

Am 27.02.21 um 04:45 schrieb Felix Kuehling:

Move fences that have already signaled should not prevent memory allocations with no_wait_gpu.

Signed-off-by: Felix Kuehling Felix.Kuehling@amd.com

Reviewed-by: Christian König christian.koenig@amd.com

---

drivers/gpu/drm/ttm/ttm_bo.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index 3a10bebb75d6..de1ec838cf8b 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -730,8 +730,9 @@ static int ttm_bo_add_move_fence(struct ttm_buffer_object *bo, return 0;

if (no_wait_gpu) {

• ret = dma_fence_is_signaled(fence) ? 0 : -EBUSY;
  

  dma_fence_put(fence);

• return -EBUSY;
  

• return ret;
  

  }

  dma_resv_add_shared_fence(bo->base.resv, fence);