2 * cachectl.h -- defines for MIPS cache control system calls
4 * Copyright (C) 1994, 1995, 1996 by Ralf Baechle
6 #ifndef __ASM_MIPS_CACHECTL
7 #define __ASM_MIPS_CACHECTL
10 * Options for cacheflush system call
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 */
17 * Caching modes for the cachectl(2) call
19 * cachectl(2) is currently not supported and returns ENOSYS.
21 #define CACHEABLE 0 /* make pages cacheable */
22 #define UNCACHEABLE 1 /* make pages uncacheable */
24 #endif /* __ASM_MIPS_CACHECTL */