diff --git a/drivers/gpu/drm/vc4/vc4_plane.c b/drivers/gpu/drm/vc4/vc4_plane.c index fa6809d8b0fe69ed6f7372e48e704449d04b1878..8853e9a4f00549ef116fffd618691d178cc16a0f 100644 --- a/drivers/gpu/drm/vc4/vc4_plane.c +++ b/drivers/gpu/drm/vc4/vc4_plane.c @@ -759,9 +759,26 @@ void vc4_plane_async_set_fb(struct drm_plane *plane, struct drm_framebuffer *fb) vc4_state->dlist[vc4_state->ptr0_offset] = addr; } +static int vc4_prepare_fb(struct drm_plane *plane, + struct drm_plane_state *state) +{ + struct vc4_bo *bo; + struct dma_fence *fence; + + if ((plane->state->fb == state->fb) || !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); + + return 0; +} + static const struct drm_plane_helper_funcs vc4_plane_helper_funcs = { .atomic_check = vc4_plane_atomic_check, .atomic_update = vc4_plane_atomic_update, + .prepare_fb = vc4_prepare_fb, }; static void vc4_plane_destroy(struct drm_plane *plane)