File: /usr/src/linux/include/asm-mips/cachectl.h

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 */
25