[PATCH 3/4] drm: virtio-gpu: transfer dumb buffers to host on plane update

[Rob Herring]

For dumb buffers, we need to transfer them to the host when updating a
plane.

Signed-off-by: Rob Herring <robh at kernel.org>
---
 drivers/gpu/drm/virtio/virtgpu_plane.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/gpu/drm/virtio/virtgpu_plane.c 
b/drivers/gpu/drm/virtio/virtgpu_plane.c
index af121cf..7b6e5c5 100644
--- a/drivers/gpu/drm/virtio/virtgpu_plane.c
+++ b/drivers/gpu/drm/virtio/virtgpu_plane.c
@@ -72,6 +72,13 @@ static void virtio_gpu_plane_atomic_update(struct drm_plane 
*plane,
                vgfb = to_virtio_gpu_framebuffer(plane->state->fb);
                bo = gem_to_virtio_gpu_obj(vgfb->obj);
                handle = bo->hw_res_handle;
+               if (bo->dumb) {
+                       virtio_gpu_cmd_transfer_to_host_2d
+                               (vgdev, handle, 0,
+                                cpu_to_le32(plane->state->crtc_w),
+                                cpu_to_le32(plane->state->crtc_h),
+                                plane->state->crtc_x, plane->state->crtc_y, 
NULL);
+               }
        } else {
                handle = 0;
        }
-- 
2.5.0