virtio-gpu uses cached mappings, set drm_gem_shmem_object.map_cached accordingly. Cc: stable@xxxxxxxxxxxxxxx Fixes: c66df701e783 ("drm/virtio: switch from ttm to gem shmem helpers") Reported-by: Gurchetan Singh <gurchetansingh@xxxxxxxxxxxx> Reported-by: Guillaume Gardet <Guillaume.Gardet@xxxxxxx> Signed-off-by: Gerd Hoffmann <kraxel@xxxxxxxxxx> --- drivers/gpu/drm/virtio/virtgpu_object.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/virtio/virtgpu_object.c b/drivers/gpu/drm/virtio/virtgpu_object.c index 3d2a6d489bfc..59319435218f 100644 --- a/drivers/gpu/drm/virtio/virtgpu_object.c +++ b/drivers/gpu/drm/virtio/virtgpu_object.c @@ -119,6 +119,7 @@ struct drm_gem_object *virtio_gpu_create_object(struct drm_device *dev, return NULL; bo->base.base.funcs = &virtio_gpu_gem_funcs; + bo->base.map_cached = true; return &bo->base.base; } -- 2.18.2