void drm_gem_object_free_unlocked(struct kref *kref);
struct drm_gem_object *drm_gem_object_alloc(struct drm_device *dev,
size_t size);
+int drm_gem_object_init(struct drm_device *dev,
+ struct drm_gem_object *obj, size_t size);
void drm_gem_object_handle_free(struct kref *kref);
void drm_gem_vm_open(struct vm_area_struct *vma);
void drm_gem_vm_close(struct vm_area_struct *vma);