1 /* kmap.c: ioremapping handlers
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
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.
14 #include <linux/kernel.h>
15 #include <linux/string.h>
16 #include <linux/types.h>
17 #include <linux/vmalloc.h>
19 #include <asm/setup.h>
20 #include <asm/segment.h>
22 #include <asm/pgalloc.h>
24 #include <asm/system.h>
28 /*****************************************************************************/
30 * Map some physical address range into the kernel address space.
33 void __iomem *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag)
35 return (void __iomem *)physaddr;
39 * Unmap a ioremap()ed region again
41 void iounmap(void volatile __iomem *addr)
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
50 void kernel_set_cachemode(void *addr, unsigned long size, int cmode)