476 static struct parport_ip32_dma_data parport_ip32_dma;  variable
489 	spin_lock_irqsave(&parport_ip32_dma.lock, flags);  in parport_ip32_dma_setup_context()
490 	if (parport_ip32_dma.left > 0) {  in parport_ip32_dma_setup_context()
494 		volatile u64 __iomem *ctxreg = (parport_ip32_dma.ctx == 0) ?  in parport_ip32_dma_setup_context()
499 		if (parport_ip32_dma.left <= limit) {  in parport_ip32_dma_setup_context()
500 			count = parport_ip32_dma.left;  in parport_ip32_dma_setup_context()
510 			 (unsigned int)parport_ip32_dma.buf,  in parport_ip32_dma_setup_context()
511 			 (unsigned int)parport_ip32_dma.next,  in parport_ip32_dma_setup_context()
513 			 parport_ip32_dma.ctx, ctxval ? "*" : "");  in parport_ip32_dma_setup_context()
515 		ctxval |= parport_ip32_dma.next &  in parport_ip32_dma_setup_context()
520 		parport_ip32_dma.next += count;  in parport_ip32_dma_setup_context()
521 		parport_ip32_dma.left -= count;  in parport_ip32_dma_setup_context()
522 		parport_ip32_dma.ctx ^= 1U;  in parport_ip32_dma_setup_context()
527 	if (parport_ip32_dma.left == 0 && parport_ip32_dma.irq_on) {  in parport_ip32_dma_setup_context()
531 		parport_ip32_dma.irq_on = 0;  in parport_ip32_dma_setup_context()
533 	spin_unlock_irqrestore(&parport_ip32_dma.lock, flags);  in parport_ip32_dma_setup_context()
543 	if (parport_ip32_dma.left)  in parport_ip32_dma_interrupt()
544 		pr_trace(NULL, "(%d): ctx=%d", irq, parport_ip32_dma.ctx);  in parport_ip32_dma_interrupt()
584 	if (!parport_ip32_dma.irq_on) {  in parport_ip32_dma_start()
588 		parport_ip32_dma.irq_on = 1;  in parport_ip32_dma_start()
592 	parport_ip32_dma.dir = dir;  in parport_ip32_dma_start()
593 	parport_ip32_dma.buf = dma_map_single(&p->bus_dev, addr, count, dir);  in parport_ip32_dma_start()
594 	parport_ip32_dma.len = count;  in parport_ip32_dma_start()
595 	parport_ip32_dma.next = parport_ip32_dma.buf;  in parport_ip32_dma_start()
596 	parport_ip32_dma.left = parport_ip32_dma.len;  in parport_ip32_dma_start()
597 	parport_ip32_dma.ctx = 0;  in parport_ip32_dma_start()
604 		(parport_ip32_dma.next & (MACEPAR_CONTEXT_DATA_BOUND - 1));  in parport_ip32_dma_start()
633 	spin_lock_irq(&parport_ip32_dma.lock);  in parport_ip32_dma_stop()
634 	if (parport_ip32_dma.irq_on) {  in parport_ip32_dma_stop()
638 		parport_ip32_dma.irq_on = 0;  in parport_ip32_dma_stop()
640 	spin_unlock_irq(&parport_ip32_dma.lock);  in parport_ip32_dma_stop()
668 	parport_ip32_dma.left += res[0] + res[1];  in parport_ip32_dma_stop()
676 	parport_ip32_dma.irq_on = 1;  in parport_ip32_dma_stop()
678 	dma_unmap_single(&p->bus_dev, parport_ip32_dma.buf,  in parport_ip32_dma_stop()
679 			 parport_ip32_dma.len, parport_ip32_dma.dir);  in parport_ip32_dma_stop()
689 	return parport_ip32_dma.left;  in parport_ip32_dma_get_residue()
701 	spin_lock_init(&parport_ip32_dma.lock);  in parport_ip32_dma_register()
702 	parport_ip32_dma.irq_on = 1;  in parport_ip32_dma_register()