1/* kmap.c: ioremapping handlers 2 * 3 * Copyright (C) 2003-5 Red Hat, Inc. All Rights Reserved. 4 * Written by David Howells (dhowells@redhat.com) 5 * - Derived from arch/m68k/mm/kmap.c 6 * 7 * This program is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU General Public License 9 * as published by the Free Software Foundation; either version 10 * 2 of the License, or (at your option) any later version. 11 */ 12 13#include <linux/mm.h> 14#include <linux/kernel.h> 15#include <linux/string.h> 16#include <linux/types.h> 17#include <linux/vmalloc.h> 18 19#include <asm/setup.h> 20#include <asm/segment.h> 21#include <asm/page.h> 22#include <asm/pgalloc.h> 23#include <asm/io.h> 24#include <asm/system.h> 25 26#undef DEBUG 27 28/*****************************************************************************/ 29/* 30 * Map some physical address range into the kernel address space. 31 */ 32 33void __iomem *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag) 34{ 35 return (void __iomem *)physaddr; 36} 37 38/* 39 * Unmap a ioremap()ed region again 40 */ 41void iounmap(void volatile __iomem *addr) 42{ 43} 44 45/* 46 * Set new cache mode for some kernel address space. 47 * The caller must push data for that range itself, if such data may already 48 * be in the cache. 49 */ 50void kernel_set_cachemode(void *addr, unsigned long size, int cmode) 51{ 52} 53