From: Daniel Vetter Date: Thu, 5 Apr 2018 17:44:48 +0200 Subject: drm/vc4: Always obey implicit sync Git-commit: 2227a7a219fdd2b925b1e861f36255efd149ff6d Patch-mainline: v4.19-rc1 References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166 Same justification as for drm_gem_fb_prepare_fb. Cc: Eric Anholt Reviewed-by: Eric Anholt Signed-off-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20180405154449.23038-9-daniel.vetter@ffwll.ch Link: https://patchwork.freedesktop.org/patch/msgid/20180409085134.27321-1-daniel.vetter@ffwll.ch Acked-by: Petr Tesarik --- drivers/gpu/drm/vc4/vc4_plane.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) --- a/drivers/gpu/drm/vc4/vc4_plane.c +++ b/drivers/gpu/drm/vc4/vc4_plane.c @@ -864,18 +864,21 @@ static int vc4_prepare_fb(struct drm_pla 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; }