File: /usr/src/linux/include/asm-mips64/cachectl.h

1     /*
2      * This file is subject to the terms and conditions of the GNU General Public
3      * License.  See the file "COPYING" in the main directory of this archive
4      * for more details.
5      *
6      * Copyright (C) 1994, 1995, 1996, 1999 by Ralf Baechle
7      * Copyright (C) 1999 Silicon Graphics, Inc.
8      */
9     #ifndef	_ASM_CACHECTL
10     #define	_ASM_CACHECTL
11     
12     /*
13      * Options for cacheflush system call
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_CACHECTL */
28