1 /* Handle the cache being disabled
2 *
3 * Copyright (C) 2010 Red Hat, Inc. All Rights Reserved.
4 * Written by David Howells (dhowells@redhat.com)
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public Licence
8 * as published by the Free Software Foundation; either version
9 * 2 of the Licence, or (at your option) any later version.
10 */
11 #include <linux/mm.h>
12
13 /*
14 * allow userspace to flush the instruction cache
15 */
sys_cacheflush(unsigned long start,unsigned long end)16 asmlinkage long sys_cacheflush(unsigned long start, unsigned long end)
17 {
18 if (end < start)
19 return -EINVAL;
20 return 0;
21 }
22