279 	struct vmw_fifo_state *fifo_state = dev_priv->fifo;  in vmw_local_fifo_reserve()  local
284 	uint32_t reserveable = fifo_state->capabilities & SVGA_FIFO_CAP_RESERVE;  in vmw_local_fifo_reserve()
287 	mutex_lock(&fifo_state->fifo_mutex);  in vmw_local_fifo_reserve()
295 	BUG_ON(fifo_state->reserved_size != 0);  in vmw_local_fifo_reserve()
296 	BUG_ON(fifo_state->dynamic_buffer != NULL);  in vmw_local_fifo_reserve()
298 	fifo_state->reserved_size = bytes;  in vmw_local_fifo_reserve()
332 				fifo_state->using_bounce_buffer = false;  in vmw_local_fifo_reserve()
346 			fifo_state->using_bounce_buffer = true;  in vmw_local_fifo_reserve()
347 			if (bytes < fifo_state->static_buffer_size)  in vmw_local_fifo_reserve()
348 				return fifo_state->static_buffer;  in vmw_local_fifo_reserve()
350 				fifo_state->dynamic_buffer = vmalloc(bytes);  in vmw_local_fifo_reserve()
351 				if (!fifo_state->dynamic_buffer)  in vmw_local_fifo_reserve()
353 				return fifo_state->dynamic_buffer;  in vmw_local_fifo_reserve()
358 	fifo_state->reserved_size = 0;  in vmw_local_fifo_reserve()
359 	mutex_unlock(&fifo_state->fifo_mutex);  in vmw_local_fifo_reserve()
384 static void vmw_fifo_res_copy(struct vmw_fifo_state *fifo_state,  in vmw_fifo_res_copy()  argument
392 	uint32_t *buffer = (fifo_state->dynamic_buffer != NULL) ?  in vmw_fifo_res_copy()
393 	    fifo_state->dynamic_buffer : fifo_state->static_buffer;  in vmw_fifo_res_copy()
406 static void vmw_fifo_slow_copy(struct vmw_fifo_state *fifo_state,  in vmw_fifo_slow_copy()  argument
411 	uint32_t *buffer = (fifo_state->dynamic_buffer != NULL) ?  in vmw_fifo_slow_copy()
412 	    fifo_state->dynamic_buffer : fifo_state->static_buffer;  in vmw_fifo_slow_copy()
428 	struct vmw_fifo_state *fifo_state = dev_priv->fifo;  in vmw_local_fifo_commit()  local
432 	bool reserveable = fifo_state->capabilities & SVGA_FIFO_CAP_RESERVE;  in vmw_local_fifo_commit()
435 	BUG_ON(bytes > fifo_state->reserved_size);  in vmw_local_fifo_commit()
437 	fifo_state->reserved_size = 0;  in vmw_local_fifo_commit()
439 	if (fifo_state->using_bounce_buffer) {  in vmw_local_fifo_commit()
441 			vmw_fifo_res_copy(fifo_state, dev_priv,  in vmw_local_fifo_commit()
444 			vmw_fifo_slow_copy(fifo_state, dev_priv,  in vmw_local_fifo_commit()
447 		if (fifo_state->dynamic_buffer) {  in vmw_local_fifo_commit()
448 			vfree(fifo_state->dynamic_buffer);  in vmw_local_fifo_commit()
449 			fifo_state->dynamic_buffer = NULL;  in vmw_local_fifo_commit()
454 	down_write(&fifo_state->rwsem);  in vmw_local_fifo_commit()
455 	if (fifo_state->using_bounce_buffer || reserveable) {  in vmw_local_fifo_commit()
466 	up_write(&fifo_state->rwsem);  in vmw_local_fifo_commit()
468 	mutex_unlock(&fifo_state->fifo_mutex);  in vmw_local_fifo_commit()