projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| b920de1b DH |
1 | /* MN10300 Cache flushing routines |
| 2 | * | |
| 3 | * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. | |
| 4 | * Written by David Howells ([email protected]) | |
| 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/module.h> | |
| 12 | #include <linux/mm.h> | |
| 13 | #include <linux/mman.h> | |
| 14 | #include <linux/threads.h> | |
| 15 | #include <asm/page.h> | |
| 16 | #include <asm/pgtable.h> | |
| 17 | #include <asm/processor.h> | |
| 18 | #include <asm/cacheflush.h> | |
| 19 | #include <asm/io.h> | |
| 20 | #include <asm/uaccess.h> | |
| 8be06289 AT |
21 | #include <asm/smp.h> |
| 22 | #include "cache-smp.h" | |
| b920de1b DH |
23 | |
| 24 | EXPORT_SYMBOL(mn10300_icache_inv); | |
| 8be06289 AT |
25 | EXPORT_SYMBOL(mn10300_icache_inv_range); |
| 26 | EXPORT_SYMBOL(mn10300_icache_inv_range2); | |
| 27 | EXPORT_SYMBOL(mn10300_icache_inv_page); | |
| b920de1b DH |
28 | EXPORT_SYMBOL(mn10300_dcache_inv); |
| 29 | EXPORT_SYMBOL(mn10300_dcache_inv_range); | |
| 30 | EXPORT_SYMBOL(mn10300_dcache_inv_range2); | |
| 31 | EXPORT_SYMBOL(mn10300_dcache_inv_page); | |
| 32 | ||
| 33 | #ifdef CONFIG_MN10300_CACHE_WBACK | |
| 34 | EXPORT_SYMBOL(mn10300_dcache_flush); | |
| 35 | EXPORT_SYMBOL(mn10300_dcache_flush_inv); | |
| 36 | EXPORT_SYMBOL(mn10300_dcache_flush_inv_range); | |
| 37 | EXPORT_SYMBOL(mn10300_dcache_flush_inv_range2); | |
| 38 | EXPORT_SYMBOL(mn10300_dcache_flush_inv_page); | |
| 39 | EXPORT_SYMBOL(mn10300_dcache_flush_range); | |
| 40 | EXPORT_SYMBOL(mn10300_dcache_flush_range2); | |
| 41 | EXPORT_SYMBOL(mn10300_dcache_flush_page); | |
| 42 | #endif | |
| 43 | ||
| b920de1b DH |
44 | /* |
| 45 | * allow userspace to flush the instruction cache | |
| 46 | */ | |
| 47 | asmlinkage long sys_cacheflush(unsigned long start, unsigned long end) | |
| 48 | { | |
| 49 | if (end < start) | |
| 50 | return -EINVAL; | |
| 51 | ||
| 52 | flush_icache_range(start, end); | |
| 53 | return 0; | |
| 54 | } |