Commit 5186654a authored Dec 19, 2018 by Gerd Hoffmann Committed by Alistair Delva Aug 19, 2019

UPSTREAM: drm/virtio: fix pageflip flush



Sending the flush command only makes sense if we actually have
a framebuffer attached to the scanout (handle != 0).

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Ezequiel Garcia <ezequiel@collabora.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20181219122708.4586-3-kraxel@redhat.com


(cherry picked from commit 6a01d277ac611663e8e810177b50d16aa6c2a915)
Signed-off-by: Greg Hartman <ghartman@google.com>
BUG: 139386237
Change-Id: I9861c9e9c57c23fa2f6c67f0d5f6aac56bae5a4a

parent fa3d9f0e

drivers/gpu/drm/virtio/virtgpu_plane.c

+6 −5

Original line number	Diff line number	Diff line
		@@ -180,6 +180,7 @@ static void virtio_gpu_primary_plane_update(struct drm_plane *plane,
		plane->state->src_h >> 16,
		plane->state->src_x >> 16,
		plane->state->src_y >> 16);
		if (handle)
		virtio_gpu_cmd_resource_flush(vgdev, handle,
		plane->state->src_x >> 16,
		plane->state->src_y >> 16,