| Greg Kroah-Hartman | b244131 | 2017-11-01 15:07:57 +0100 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2 | /* |
| 3 | * cachectl.h -- defines for M32R cache control system calls |
| 4 | * |
| 5 | * Copyright (C) 2003 by Kazuhiro Inaoka |
| 6 | */ |
| 7 | #ifndef __ASM_M32R_CACHECTL |
| 8 | #define __ASM_M32R_CACHECTL |
| 9 | |
| 10 | /* |
| 11 | * Options for cacheflush system call |
| 12 | * |
| 13 | * cacheflush() is currently fluch_cache_all(). |
| 14 | */ |
| 15 | #define ICACHE (1<<0) /* flush instruction cache */ |
| 16 | #define DCACHE (1<<1) /* writeback and flush data cache */ |
| 17 | #define BCACHE (ICACHE|DCACHE) /* flush both caches */ |
| 18 | |
| 19 | /* |
| 20 | * Caching modes for the cachectl(2) call |
| 21 | * |
| 22 | * cachectl(2) is currently not supported and returns ENOSYS. |
| 23 | */ |
| 24 | #define CACHEABLE 0 /* make pages cacheable */ |
| 25 | #define UNCACHEABLE 1 /* make pages uncacheable */ |
| 26 | |
| 27 | #endif /* __ASM_M32R_CACHECTL */ |