200 	dma_addr_t dev_addr = xen_phys_to_dma(dev, phys);  in xen_swiotlb_map_page()  local
208 	if (dma_capable(dev, dev_addr, size, true) &&  in xen_swiotlb_map_page()
210 		!xen_arch_need_swiotlb(dev, phys, dev_addr) &&  in xen_swiotlb_map_page()
217 	trace_swiotlb_bounced(dev, dev_addr, size);  in xen_swiotlb_map_page()
224 	dev_addr = xen_phys_to_dma(dev, map);  in xen_swiotlb_map_page()
229 	if (unlikely(!dma_capable(dev, dev_addr, size, true))) {  in xen_swiotlb_map_page()
237 		if (pfn_valid(PFN_DOWN(dma_to_phys(dev, dev_addr))))  in xen_swiotlb_map_page()
240 			xen_dma_sync_for_device(dev, dev_addr, size, dir);  in xen_swiotlb_map_page()
242 	return dev_addr;  in xen_swiotlb_map_page()
253 static void xen_swiotlb_unmap_page(struct device *hwdev, dma_addr_t dev_addr,  in xen_swiotlb_unmap_page()  argument
256 	phys_addr_t paddr = xen_dma_to_phys(hwdev, dev_addr);  in xen_swiotlb_unmap_page()
261 		if (pfn_valid(PFN_DOWN(dma_to_phys(hwdev, dev_addr))))  in xen_swiotlb_unmap_page()
264 			xen_dma_sync_for_cpu(hwdev, dev_addr, size, dir);  in xen_swiotlb_unmap_page()
268 	if (is_xen_swiotlb_buffer(hwdev, dev_addr))  in xen_swiotlb_unmap_page()