cachectl.h
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上传日期:2013-02-24
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- /*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 1994, 1995, 1996, 1999 by Ralf Baechle
- * Copyright (C) 1999 Silicon Graphics, Inc.
- */
- #ifndef _ASM_CACHECTL
- #define _ASM_CACHECTL
- /*
- * Options for cacheflush system call
- */
- #define ICACHE (1<<0) /* flush instruction cache */
- #define DCACHE (1<<1) /* writeback and flush data cache */
- #define BCACHE (ICACHE|DCACHE) /* flush both caches */
- /*
- * Caching modes for the cachectl(2) call
- *
- * cachectl(2) is currently not supported and returns ENOSYS.
- */
- #define CACHEABLE 0 /* make pages cacheable */
- #define UNCACHEABLE 1 /* make pages uncacheable */
- #endif /* _ASM_CACHECTL */