1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Microblaze support for cache consistent memory. 4 * Copyright (C) 2010 Michal Simek <monstr@monstr.eu> 5 * Copyright (C) 2010 PetaLogix 6 * Copyright (C) 2005 John Williams <jwilliams@itee.uq.edu.au> 7 */ 8 9 #include <linux/kernel.h> 10 #include <linux/string.h> 11 #include <linux/types.h> 12 #include <linux/mm.h> 13 #include <linux/init.h> 14 #include <linux/dma-map-ops.h> 15 #include <asm/cpuinfo.h> 16 #include <asm/cacheflush.h> 17 18 void arch_dma_prep_coherent(struct page *page, size_t size) 19 { 20 phys_addr_t paddr = page_to_phys(page); 21 22 flush_dcache_range(paddr, paddr + size); 23 } 24