NetBSD/sys/arch/mips/include/cachectl.h

63 lines
2.7 KiB
C

/* $NetBSD: cachectl.h,v 1.3 1997/10/18 02:25:14 jonathan Exp $ */
/*-
* Copyright (c) 1997 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jonathan Stone.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _MIPS_CACHECTL_H_
#define _MIPS_CACHECTL_H_
#include <sys/cdefs.h>
/*
* invalidate a range of addresses from the cache.
*/
int _cacheflush __P((void *addr, int nbytes, int cacheflags));
int cacheflush __P((void *addr, int nbytes, int cacheflags));
/* cacheflush() flags: */
#define ICACHE 0x01 /* invalidate I-cache */
#define DCACHE 0x02 /* writeback and invalidate D-cache */
#define BCACHE (ICACHE|DCACHE) /* invalidate both caches, as above */
int cachectl __P((void *addr, int nbytes, int cacheop));
/* cachectl() cache operations: */
#define CACHEABLE 0x00 /* make page(s) cacheable */
#define UNCACHEABLE 0x01 /* make page(s) uncacheable */
#endif /* _MIPS_CACHECTL_H_ */