| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame^] | 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); |