270 	dma_addr_t dev_addr;  in xen_swiotlb_alloc_coherent()  local
301 	dev_addr = xen_phys_to_dma(hwdev, phys);  in xen_swiotlb_alloc_coherent()
302 	if (((dev_addr + size - 1 <= dma_mask)) &&  in xen_swiotlb_alloc_coherent()
304 		*dma_handle = dev_addr;  in xen_swiotlb_alloc_coherent()
320 			  dma_addr_t dev_addr, unsigned long attrs)  in xen_swiotlb_free_coherent()  argument
332 	phys = xen_dma_to_phys(hwdev, dev_addr);  in xen_swiotlb_free_coherent()
342 	if (!WARN_ON((dev_addr + size - 1 > dma_mask) ||  in xen_swiotlb_free_coherent()
364 	dma_addr_t dev_addr = xen_phys_to_dma(dev, phys);  in xen_swiotlb_map_page()  local
372 	if (dma_capable(dev, dev_addr, size, true) &&  in xen_swiotlb_map_page()
374 		!xen_arch_need_swiotlb(dev, phys, dev_addr) &&  in xen_swiotlb_map_page()
381 	trace_swiotlb_bounced(dev, dev_addr, size, swiotlb_force);  in xen_swiotlb_map_page()
388 	dev_addr = xen_phys_to_dma(dev, map);  in xen_swiotlb_map_page()
393 	if (unlikely(!dma_capable(dev, dev_addr, size, true))) {  in xen_swiotlb_map_page()
401 		if (pfn_valid(PFN_DOWN(dma_to_phys(dev, dev_addr))))  in xen_swiotlb_map_page()
404 			xen_dma_sync_for_device(dev, dev_addr, size, dir);  in xen_swiotlb_map_page()
406 	return dev_addr;  in xen_swiotlb_map_page()
417 static void xen_swiotlb_unmap_page(struct device *hwdev, dma_addr_t dev_addr,  in xen_swiotlb_unmap_page()  argument
420 	phys_addr_t paddr = xen_dma_to_phys(hwdev, dev_addr);  in xen_swiotlb_unmap_page()
425 		if (pfn_valid(PFN_DOWN(dma_to_phys(hwdev, dev_addr))))  in xen_swiotlb_unmap_page()
428 			xen_dma_sync_for_cpu(hwdev, dev_addr, size, dir);  in xen_swiotlb_unmap_page()
432 	if (is_xen_swiotlb_buffer(hwdev, dev_addr))  in xen_swiotlb_unmap_page()