272 	struct vmw_fifo_state *fifo_state = dev_priv->fifo;  in vmw_local_fifo_reserve()  local
277 	uint32_t reserveable = fifo_state->capabilities & SVGA_FIFO_CAP_RESERVE;  in vmw_local_fifo_reserve()
280 	mutex_lock(&fifo_state->fifo_mutex);  in vmw_local_fifo_reserve()
288 	BUG_ON(fifo_state->reserved_size != 0);  in vmw_local_fifo_reserve()
289 	BUG_ON(fifo_state->dynamic_buffer != NULL);  in vmw_local_fifo_reserve()
291 	fifo_state->reserved_size = bytes;  in vmw_local_fifo_reserve()
325 				fifo_state->using_bounce_buffer = false;  in vmw_local_fifo_reserve()
339 			fifo_state->using_bounce_buffer = true;  in vmw_local_fifo_reserve()
340 			if (bytes < fifo_state->static_buffer_size)  in vmw_local_fifo_reserve()
341 				return fifo_state->static_buffer;  in vmw_local_fifo_reserve()
343 				fifo_state->dynamic_buffer = vmalloc(bytes);  in vmw_local_fifo_reserve()
344 				if (!fifo_state->dynamic_buffer)  in vmw_local_fifo_reserve()
346 				return fifo_state->dynamic_buffer;  in vmw_local_fifo_reserve()
351 	fifo_state->reserved_size = 0;  in vmw_local_fifo_reserve()
352 	mutex_unlock(&fifo_state->fifo_mutex);  in vmw_local_fifo_reserve()
377 static void vmw_fifo_res_copy(struct vmw_fifo_state *fifo_state,  in vmw_fifo_res_copy()  argument
385 	uint32_t *buffer = (fifo_state->dynamic_buffer != NULL) ?  in vmw_fifo_res_copy()
386 	    fifo_state->dynamic_buffer : fifo_state->static_buffer;  in vmw_fifo_res_copy()
399 static void vmw_fifo_slow_copy(struct vmw_fifo_state *fifo_state,  in vmw_fifo_slow_copy()  argument
404 	uint32_t *buffer = (fifo_state->dynamic_buffer != NULL) ?  in vmw_fifo_slow_copy()
405 	    fifo_state->dynamic_buffer : fifo_state->static_buffer;  in vmw_fifo_slow_copy()
421 	struct vmw_fifo_state *fifo_state = dev_priv->fifo;  in vmw_local_fifo_commit()  local
425 	bool reserveable = fifo_state->capabilities & SVGA_FIFO_CAP_RESERVE;  in vmw_local_fifo_commit()
428 	BUG_ON(bytes > fifo_state->reserved_size);  in vmw_local_fifo_commit()
430 	fifo_state->reserved_size = 0;  in vmw_local_fifo_commit()
432 	if (fifo_state->using_bounce_buffer) {  in vmw_local_fifo_commit()
434 			vmw_fifo_res_copy(fifo_state, dev_priv,  in vmw_local_fifo_commit()
437 			vmw_fifo_slow_copy(fifo_state, dev_priv,  in vmw_local_fifo_commit()
440 		if (fifo_state->dynamic_buffer) {  in vmw_local_fifo_commit()
441 			vfree(fifo_state->dynamic_buffer);  in vmw_local_fifo_commit()
442 			fifo_state->dynamic_buffer = NULL;  in vmw_local_fifo_commit()
447 	down_write(&fifo_state->rwsem);  in vmw_local_fifo_commit()
448 	if (fifo_state->using_bounce_buffer || reserveable) {  in vmw_local_fifo_commit()
459 	up_write(&fifo_state->rwsem);  in vmw_local_fifo_commit()
461 	mutex_unlock(&fifo_state->fifo_mutex);  in vmw_local_fifo_commit()