56 struct ttm_bo_driver {  struct
68 	struct ttm_tt *(*ttm_tt_create)(struct ttm_buffer_object *bo,
80 	int (*ttm_tt_populate)(struct ttm_bo_device *bdev,
91 	void (*ttm_tt_unpopulate)(struct ttm_bo_device *bdev, struct ttm_tt *ttm);
105 	int (*ttm_tt_bind)(struct ttm_bo_device *bdev, struct ttm_tt *ttm, struct ttm_resource *bo_mem);
130 	 * struct ttm_bo_driver member eviction_valuable  argument
141 	 * struct ttm_bo_driver member evict_flags:  argument
154 	 * struct ttm_bo_driver member move:  argument
169 	 * struct ttm_bo_driver_member verify_access  argument
180 	int (*verify_access)(struct ttm_buffer_object *bo,
190 	void (*move_notify)(struct ttm_buffer_object *bo,
195 	int (*fault_reserve_notify)(struct ttm_buffer_object *bo);
200 	void (*swap_notify)(struct ttm_buffer_object *bo);
208 	int (*io_mem_reserve)(struct ttm_bo_device *bdev,
210 	void (*io_mem_free)(struct ttm_bo_device *bdev,
240 	 * struct ttm_bo_driver member del_from_lru_notify  argument
246 	void (*del_from_lru_notify)(struct ttm_buffer_object *bo);
256 	void (*release_notify)(struct ttm_buffer_object *bo);