1324 	struct atmel_dma_buffer *pdc = &atmel_port->pdc_tx;  in atmel_release_tx_pdc()  local
1327 			 pdc->dma_addr,  in atmel_release_tx_pdc()
1328 			 pdc->dma_size,  in atmel_release_tx_pdc()
1339 	struct atmel_dma_buffer *pdc = &atmel_port->pdc_tx;  in atmel_tx_pdc()  local
1346 	xmit->tail += pdc->ofs;  in atmel_tx_pdc()
1349 	port->icount.tx += pdc->ofs;  in atmel_tx_pdc()
1350 	pdc->ofs = 0;  in atmel_tx_pdc()
1359 					   pdc->dma_addr,  in atmel_tx_pdc()
1360 					   pdc->dma_size,  in atmel_tx_pdc()
1364 		pdc->ofs = count;  in atmel_tx_pdc()
1367 				  pdc->dma_addr + xmit->tail);  in atmel_tx_pdc()
1389 	struct atmel_dma_buffer *pdc = &atmel_port->pdc_tx;  in atmel_prepare_tx_pdc()  local
1392 	pdc->buf = xmit->buf;  in atmel_prepare_tx_pdc()
1393 	pdc->dma_addr = dma_map_single(port->dev,  in atmel_prepare_tx_pdc()
1394 					pdc->buf,  in atmel_prepare_tx_pdc()
1397 	pdc->dma_size = UART_XMIT_SIZE;  in atmel_prepare_tx_pdc()
1398 	pdc->ofs = 0;  in atmel_prepare_tx_pdc()
1477 		struct atmel_dma_buffer *pdc = &atmel_port->pdc_rx[i];  in atmel_release_rx_pdc()  local
1480 				 pdc->dma_addr,  in atmel_release_rx_pdc()
1481 				 pdc->dma_size,  in atmel_release_rx_pdc()
1483 		kfree(pdc->buf);  in atmel_release_rx_pdc()
1491 	struct atmel_dma_buffer *pdc;  in atmel_rx_from_pdc()  local
1501 		pdc = &atmel_port->pdc_rx[rx_idx];  in atmel_rx_from_pdc()
1502 		head = atmel_uart_readl(port, ATMEL_PDC_RPR) - pdc->dma_addr;  in atmel_rx_from_pdc()
1503 		tail = pdc->ofs;  in atmel_rx_from_pdc()
1515 		head = min(head, pdc->dma_size);  in atmel_rx_from_pdc()
1518 			dma_sync_single_for_cpu(port->dev, pdc->dma_addr,  in atmel_rx_from_pdc()
1519 					pdc->dma_size, DMA_FROM_DEVICE);  in atmel_rx_from_pdc()
1529 			tty_insert_flip_string(tport, pdc->buf + pdc->ofs,  in atmel_rx_from_pdc()
1532 			dma_sync_single_for_device(port->dev, pdc->dma_addr,  in atmel_rx_from_pdc()
1533 					pdc->dma_size, DMA_FROM_DEVICE);  in atmel_rx_from_pdc()
1536 			pdc->ofs = head;  in atmel_rx_from_pdc()
1543 		if (head >= pdc->dma_size) {  in atmel_rx_from_pdc()
1544 			pdc->ofs = 0;  in atmel_rx_from_pdc()
1545 			atmel_uart_writel(port, ATMEL_PDC_RNPR, pdc->dma_addr);  in atmel_rx_from_pdc()
1546 			atmel_uart_writel(port, ATMEL_PDC_RNCR, pdc->dma_size);  in atmel_rx_from_pdc()
1551 	} while (head >= pdc->dma_size);  in atmel_rx_from_pdc()
1571 		struct atmel_dma_buffer *pdc = &atmel_port->pdc_rx[i];  in atmel_prepare_rx_pdc()  local
1573 		pdc->buf = kmalloc(PDC_BUFFER_SIZE, GFP_KERNEL);  in atmel_prepare_rx_pdc()
1574 		if (pdc->buf == NULL) {  in atmel_prepare_rx_pdc()
1585 		pdc->dma_addr = dma_map_single(port->dev,  in atmel_prepare_rx_pdc()
1586 						pdc->buf,  in atmel_prepare_rx_pdc()
1589 		pdc->dma_size = PDC_BUFFER_SIZE;  in atmel_prepare_rx_pdc()
1590 		pdc->ofs = 0;  in atmel_prepare_rx_pdc()