drm/udl: add support to export a handle to a FD on UDL.
Only importing an FD to a handle is currently supported on UDL,
but the exporting functionality is equally useful.
Signed-off-by: Haixia Shi <hshi@chromium.org>
Reviewed-by: Stéphane Marchesin <marcheu@chromium.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/udl/udl_drv.h b/drivers/gpu/drm/udl/udl_drv.h
index 3082780..1b132d7 100644
--- a/drivers/gpu/drm/udl/udl_drv.h
+++ b/drivers/gpu/drm/udl/udl_drv.h
@@ -124,6 +124,8 @@
void udl_gem_free_object(struct drm_gem_object *gem_obj);
struct udl_gem_object *udl_gem_alloc_object(struct drm_device *dev,
size_t size);
+struct dma_buf *udl_gem_prime_export(struct drm_device *dev,
+ struct drm_gem_object *obj, int flags);
struct drm_gem_object *udl_gem_prime_import(struct drm_device *dev,
struct dma_buf *dma_buf);