From 4109e7f7d5aeefaa1d72f9ab4c63aa5d79fc81fb Mon Sep 17 00:00:00 2001
From: Rob Herring <robh@kernel.org>
Date: Wed, 13 Jan 2016 15:52:09 -0600
Subject: [PATCH] drm: virtio-gpu: transfer dumb buffers to host on plane
update
For dumb buffers, we need to transfer them to the host when updating a
plane.
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
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 519eebd6c581f..70b44a2345ab4 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;
}