284 	dma_addr_t dev_addr;  in xen_swiotlb_alloc_coherent()  local
315 	dev_addr = xen_phys_to_bus(phys);  in xen_swiotlb_alloc_coherent()
316 	if (((dev_addr + size - 1 <= dma_mask)) &&  in xen_swiotlb_alloc_coherent()
318 		*dma_handle = dev_addr;  in xen_swiotlb_alloc_coherent()
333 			  dma_addr_t dev_addr, unsigned long attrs)  in xen_swiotlb_free_coherent()  argument
344 	phys = xen_bus_to_phys(dev_addr);  in xen_swiotlb_free_coherent()
349 	if (!WARN_ON((dev_addr + size - 1 > dma_mask) ||  in xen_swiotlb_free_coherent()
370 	dma_addr_t dev_addr = xen_phys_to_bus(phys);  in xen_swiotlb_map_page()  local
378 	if (dma_capable(dev, dev_addr, size) &&  in xen_swiotlb_map_page()
380 		!xen_arch_need_swiotlb(dev, phys, dev_addr) &&  in xen_swiotlb_map_page()
387 	trace_swiotlb_bounced(dev, dev_addr, size, swiotlb_force);  in xen_swiotlb_map_page()
395 	dev_addr = xen_phys_to_bus(map);  in xen_swiotlb_map_page()
400 	if (unlikely(!dma_capable(dev, dev_addr, size))) {  in xen_swiotlb_map_page()
408 		xen_dma_sync_for_device(dev, dev_addr, phys, size, dir);  in xen_swiotlb_map_page()
409 	return dev_addr;  in xen_swiotlb_map_page()
420 static void xen_swiotlb_unmap_page(struct device *hwdev, dma_addr_t dev_addr,  in xen_swiotlb_unmap_page()  argument
423 	phys_addr_t paddr = xen_bus_to_phys(dev_addr);  in xen_swiotlb_unmap_page()
428 		xen_dma_sync_for_cpu(hwdev, dev_addr, paddr, size, dir);  in xen_swiotlb_unmap_page()
431 	if (is_xen_swiotlb_buffer(dev_addr))  in xen_swiotlb_unmap_page()