drm/vc4: Always obey implicit sync (2227a7a2) · Commits · 戴 / test

Same justification as for drm_gem_fb_prepare_fb. Cc: Eric Anholt <eric@anholt.net> Reviewed-by:

drivers/gpu/drm/vc4/vc4_plane.c

+7 −4

Original line number	Diff line number	Diff line
		@@ -861,18 +861,21 @@ static int vc4_prepare_fb(struct drm_plane *plane,
		struct dma_fence *fence;
		int ret;

		if ((plane->state->fb == state->fb) \|\| !state->fb)
		if (!state->fb)
		return 0;

		bo = to_vc4_bo(&drm_fb_cma_get_gem_obj(state->fb, 0)->base);

		fence = reservation_object_get_excl_rcu(bo->resv);
		drm_atomic_set_fence_for_plane(state, fence);

		if (plane->state->fb == state->fb)
		return 0;

		ret = vc4_bo_inc_usecnt(bo);
		if (ret)
		return ret;

		fence = reservation_object_get_excl_rcu(bo->resv);
		drm_atomic_set_fence_for_plane(state, fence);

		return 0;
		}