Add virtio gpu driver.

This patch adds a kms driver for the virtio gpu.  The xorg modesetting
driver can handle the device just fine, the framebuffer for fbcon is
there too.

Qemu patches for the host side are under review currently.

The pci version of the device comes in two variants: with and without
vga compatibility.  The former has a extra memory bar for the vga
framebuffer, the later is a pure virtio device.  The only concern for
this driver is that in the virtio-vga case we have to kick out the
firmware framebuffer.

Initial revision has only 2d support, 3d (virgl) support requires
some more work on the qemu side and will be added later.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index df6d9970d9a4..59ce5587ed90 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -814,6 +814,7 @@ struct drm_device {
 #endif
 
         struct platform_device *platformdev; /**< Platform device struture */
+        struct virtio_device *virtdev;
 
         struct drm_sg_mem *sg;  /**< Scatter gather memory */
         unsigned int num_crtcs;                  /**< Number of CRTCs on this device */