drm2/ttm/ttm_bo_driver.h

181 	 * @bo: Pointer to the buffer object we're allocating space for.
205 			 struct ttm_buffer_object *bo,
374 	 * @bo: the buffer object to be evicted
376 	 * Return the bo flags for a buffer which is not mapped to the hardware.
378 	 * finished, they'll end up in bo->mem.flags
381 	 void(*evict_flags) (struct ttm_buffer_object *bo,
386 	 * @bo: the buffer to move
396 	int (*move) (struct ttm_buffer_object *bo,
404 	 * @bo: Pointer to a buffer object.
414 	int (*verify_access) (struct ttm_buffer_object *bo);
421 	 * fences directly. The bo driver needs the following functionality:
435 	void (*move_notify)(struct ttm_buffer_object *bo,
439 	int (*fault_reserve_notify)(struct ttm_buffer_object *bo);
442 	 * notify the driver that we're about to swap out this bo
444 	void (*swap_notify) (struct ttm_buffer_object *bo);
474  * @lru_lock: Spinlock protecting the bo subsystem lru lists.
534 	 * Constant after bo device init / atomic.
702  * @bo: Pointer to a struct ttm_buffer_object. the data of which
709  * Allocate memory space for the buffer object pointed to by @bo, using
718 extern int ttm_bo_mem_space(struct ttm_buffer_object *bo,
724 extern void ttm_bo_mem_put(struct ttm_buffer_object *bo,
726 extern void ttm_bo_mem_put_locked(struct ttm_buffer_object *bo,
756  * @bo: tear down the virtual mappings for this BO
758 extern void ttm_bo_unmap_virtual(struct ttm_buffer_object *bo);
763  * @bo: tear down the virtual mappings for this BO
767 extern void ttm_bo_unmap_virtual_locked(struct ttm_buffer_object *bo);
769 extern int ttm_mem_io_reserve_vm(struct ttm_buffer_object *bo);
770 extern void ttm_mem_io_free_vm(struct ttm_buffer_object *bo);
779  * @bo: A pointer to a struct ttm_buffer_object.
782  * @use_sequence: If @bo is already reserved, Only sleep waiting for
783  * it to become unreserved if @sequence < (@bo)->sequence.
806  * release all its buffer reservations, wait for @bo to become unreserved, and
813  * Release all buffer reservations, wait for @bo to become unreserved and
821 extern int ttm_bo_reserve(struct ttm_buffer_object *bo,
827  * @bo: A pointer to a struct ttm_buffer_object.
829  * @sequence: Set (@bo)->sequence to this value after lock
838 extern int ttm_bo_reserve_slowpath_nolru(struct ttm_buffer_object *bo,
845  * @bo: A pointer to a struct ttm_buffer_object.
847  * @sequence: Set (@bo)->sequence to this value after lock
853 extern int ttm_bo_reserve_slowpath(struct ttm_buffer_object *bo,
859  * @bo: A pointer to a struct ttm_buffer_object.
862  * @use_sequence: If @bo is already reserved, Only sleep waiting for
863  * it to become unreserved if @sequence < (@bo)->sequence.
870  * Release all buffer reservations, wait for @bo to become unreserved and
878 extern int ttm_bo_reserve_nolru(struct ttm_buffer_object *bo,
886  * @bo: A pointer to a struct ttm_buffer_object.
888  * Unreserve a previous reservation of @bo.
890 extern void ttm_bo_unreserve(struct ttm_buffer_object *bo);
895  * @bo: A pointer to a struct ttm_buffer_object.
897  * Unreserve a previous reservation of @bo.
900 extern void ttm_bo_unreserve_locked(struct ttm_buffer_object *bo);
909  * @bo: A pointer to a struct ttm_buffer_object.
917  * and update the (@bo)->mem placement flags. If unsuccessful, the old
924 extern int ttm_bo_move_ttm(struct ttm_buffer_object *bo,
931  * @bo: A pointer to a struct ttm_buffer_object.
939  * and update the (@bo)->mem placement flags. If unsuccessful, the old
946 extern int ttm_bo_move_memcpy(struct ttm_buffer_object *bo,
953  * @bo: A pointer to a struct ttm_buffer_object.
957 extern void ttm_bo_free_old_node(struct ttm_buffer_object *bo);
962  * @bo: A pointer to a struct ttm_buffer_object.
976 extern int ttm_bo_move_accel_cleanup(struct ttm_buffer_object *bo,