Commit f849c6d6 authored by Christian König's avatar Christian König Committed by Alex Deucher
Browse files

drm/ttm: simplify ttm_bo_wait 



As far as I can see no need for a custom implementation any more.

Reviewed-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 5bc73067

drivers/gpu/drm/ttm/ttm_bo.c

+4 −33
Original line number Diff line number Diff line
@@ -1546,46 +1546,17 @@ EXPORT_SYMBOL(ttm_bo_unmap_virtual); 
int ttm_bo_wait(struct ttm_buffer_object *bo,

		bool interruptible, bool no_wait)

{

	struct reservation_object_list *fobj;

	struct reservation_object *resv;

	struct fence *excl;

	long timeout = 15 * HZ;

	int i;



	resv = bo->resv;

	fobj = reservation_object_get_list(resv);

	excl = reservation_object_get_excl(resv);

	if (excl) {

		if (!fence_is_signaled(excl)) {

			if (no_wait)

				return -EBUSY;



			timeout = fence_wait_timeout(excl,

						     interruptible, timeout);

		}

	}

	long timeout = no_wait ? 0 : 15 * HZ;



	for (i = 0; fobj && timeout > 0 && i < fobj->shared_count; ++i) {

		struct fence *fence;

		fence = rcu_dereference_protected(fobj->shared[i],

						reservation_object_held(resv));



		if (!fence_is_signaled(fence)) {

			if (no_wait)

				return -EBUSY;



			timeout = fence_wait_timeout(fence,

	timeout = reservation_object_wait_timeout_rcu(bo->resv, true,

						      interruptible, timeout);

		}

	}



	if (timeout < 0)

		return timeout;



	if (timeout == 0)

		return -EBUSY;



	reservation_object_add_excl_fence(resv, NULL);

	reservation_object_add_excl_fence(bo->resv, NULL);

	return 0;

}

EXPORT_SYMBOL(ttm_bo_wait);