[3/4] drm: virtio-gpu: transfer dumb buffers to host on plane update
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Message ID 1452721930-14714-4-git-send-email-robh@kernel.org
State New
Headers show

Commit Message

Rob Herring Jan. 13, 2016, 9:52 p.m. UTC
For dumb buffers, we need to transfer them to the host when updating a
plane.

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

Patch
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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;
 	}