consistent.c
// SPDX-License-Identifier: GPL-2.0-only
/*
* Microblaze support for cache consistent memory.
* Copyright (C) 2010 Michal Simek <monstr@monstr.eu>
* Copyright (C) 2010 PetaLogix
* Copyright (C) 2005 John Williams <jwilliams@itee.uq.edu.au>
*/
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/types.h>
#include <linux/mm.h>
#include <linux/init.h>
#include <linux/dma-map-ops.h>
#include <asm/cpuinfo.h>
#include <asm/cacheflush.h>
void arch_dma_prep_coherent(struct page *page, size_t size)
{
phys_addr_t paddr = page_to_phys(page);
flush_dcache_range(paddr, paddr + size);
}