// SPDX-License-Identifier: GPL-2.0/* * Copyright (C) 2009-2010 PetaLogix * Copyright (C) 2006 Benjamin Herrenschmidt, IBM Corporation * * Provide default implementations of the DMA mapping callbacks for * directly mapped busses. */ #include <linux/device.h>#include <linux/dma-map-ops.h>#include <linux/gfp.h>#include <linux/export.h>#include <linux/bug.h>#include <asm/cacheflush.h> static void __dma_sync(phys_addr_t paddr, size_t size,		enum dma_data_direction direction){	switch (direction) {	case DMA_TO_DEVICE:	case DMA_BIDIRECTIONAL:		flush_dcache_range(paddr, paddr + size);		break;	case DMA_FROM_DEVICE:		invalidate_dcache_range(paddr, paddr + size);		break;	default:		BUG();	}} void arch_sync_dma_for_device(phys_addr_t paddr, size_t size,		enum dma_data_direction dir){	__dma_sync(paddr, size, dir);} void arch_sync_dma_for_cpu(phys_addr_t paddr, size_t size,		enum dma_data_direction dir){	__dma_sync(paddr, size, dir);}