| wdenk | 4fc9569 | 2003-02-28 00:49:47 +0000 | [diff] [blame] | 1 | /* |
| 2 | * cachectl.h -- defines for MIPS cache control system calls |
| 3 | * |
| 4 | * Copyright (C) 1994, 1995, 1996 by Ralf Baechle |
| 5 | */ |
| 6 | #ifndef __ASM_MIPS_CACHECTL |
| 7 | #define __ASM_MIPS_CACHECTL |
| 8 | |
| 9 | /* |
| 10 | * Options for cacheflush system call |
| 11 | */ |
| 12 | #define ICACHE (1<<0) /* flush instruction cache */ |
| 13 | #define DCACHE (1<<1) /* writeback and flush data cache */ |
| 14 | #define BCACHE (ICACHE|DCACHE) /* flush both caches */ |
| 15 | |
| 16 | /* |
| 17 | * Caching modes for the cachectl(2) call |
| 18 | * |
| 19 | * cachectl(2) is currently not supported and returns ENOSYS. |
| 20 | */ |
| 21 | #define CACHEABLE 0 /* make pages cacheable */ |
| 22 | #define UNCACHEABLE 1 /* make pages uncacheable */ |
| 23 | |
| 24 | #endif /* __ASM_MIPS_CACHECTL */ |