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1da177e4 LT |
1 | /* |
2 | * This file is subject to the terms and conditions of the GNU General Public | |
3 | * License. See the file "COPYING" in the main directory of this archive | |
4 | * for more details. | |
5 | * | |
6 | * Copyright (C) 2001-2003 Silicon Graphics, Inc. All rights reserved. | |
7 | * | |
8 | */ | |
9 | #include <linux/module.h> | |
10 | #include <asm/pgalloc.h> | |
11 | ||
12 | /** | |
13 | * sn_flush_all_caches - flush a range of address from all caches (incl. L4) | |
14 | * @flush_addr: identity mapped region 7 address to start flushing | |
15 | * @bytes: number of bytes to flush | |
16 | * | |
17 | * Flush a range of addresses from all caches including L4. | |
18 | * All addresses fully or partially contained within | |
19 | * @flush_addr to @flush_addr + @bytes are flushed | |
20 | * from the all caches. | |
21 | */ | |
22 | void | |
23 | sn_flush_all_caches(long flush_addr, long bytes) | |
24 | { | |
25 | flush_icache_range(flush_addr, flush_addr+bytes); | |
26 | /* | |
27 | * The last call may have returned before the caches | |
28 | * were actually flushed, so we call it again to make | |
29 | * sure. | |
30 | */ | |
31 | flush_icache_range(flush_addr, flush_addr+bytes); | |
32 | mb(); | |
33 | } | |
34 | EXPORT_SYMBOL(sn_flush_all_caches); |