Wire up gl_block callback, so ui code can request to stop
virtio-gpu rendering.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

So we can stop rendering for a while in case we have to.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
Reviewed-by: NMarc-André Lureau <marcandre.lureau@redhat.com>

We'll go take out the commands we receive out of the virt queue and put
them into a linked list, to decouple virtio queue handling from actual
command processing.

Also move cmd processing to new virtio_gpu_handle_ctrl func, so we can
easily kick it from different places.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Add virglrenderer library detection.  Add 3d mode to virtio-gpu,
wire up virglrenderer library.  When in 3d mode render using the
new context management and texture scanout callbacks.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
Reviewed-by: NMax Reitz <mreitz@redhat.com>

Switch over to virtio_instance_init_common.  Drop duplicate properties
in virtio-gpu-pci and virtio-vga as they are properly aliased now.  Also
drop the indirection via DEFINE_VIRTIO_GPU_PROPERTIES, we don't need it
any more as the properties are defined in a single place now.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

This patch adds the core code for virtio gpu emulation,
covering 2d support.

Written by Dave Airlie and Gerd Hoffmann.
Signed-off-by: NDave Airlie <airlied@redhat.com>
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>