Commit d2588d2d authored by Christian König's avatar Christian König
Browse files

drm/ttm: remove the backing store if no placement is given 



Pipeline removal of the BOs backing store when no placement is given
during validation.

Signed-off-by: default avatarChristian König <christian.koenig@amd.com>
Acked-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/353994/?series=73646&rev=1
parent bb42df46

drivers/gpu/drm/ttm/ttm_bo.c

+12 −0
Original line number Diff line number Diff line
@@ -1196,6 +1196,18 @@ int ttm_bo_validate(struct ttm_buffer_object *bo, 
	uint32_t new_flags;



	dma_resv_assert_held(bo->base.resv);



	/*

	 * Remove the backing store if no placement is given.

	 */

	if (!placement->num_placement && !placement->num_busy_placement) {

		ret = ttm_bo_pipeline_gutting(bo);

		if (ret)

			return ret;



		return ttm_tt_create(bo, false);

	}



	/*

	 * Check whether we need to move buffer.

	 */