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cachectl.h revision 1.1 
      1 /*	$NetBSD: cachectl.h,v 1.1 1997/06/08 10:52:04 jonathan Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1997 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Jonathan Stone.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *	This product includes software developed by the NetBSD
     21  *	Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 #ifndef _MIPS_CACHECTL_H_
     40 #define _MIPS_CACHECTL_H_
     41 
     42 #include <sys/cdefs.h>
     43 
     44 /*
     45  * invalidate a range of addresses from the cache.
     46  */
     47 int  cacheflush __P((void *addr, int nbytes, int cacheflags))
     48 
     49 					/* cacheflush() flags: */
     50 #define ICACHE	0x01			/* invalidate I-cache */
     51 #define DCACHE	0x01			/* writeback and invalidate D-cache */
     52 #define BCACHE	(ICACHE|DCACHE)		/* invalidate both caches, as above */
     53 
     54 
     55 int  cachectl __P((void *addr, int nbytes, int cacheop))
     56 
     57 					/* cachectl() cache operations: */
     58 #define CACHEABLE       0x00		/* make page(s) cacheable */
     59 #define UNCACHEABLE     0x01		/* make page(s) uncacheable */
     60 
     61 #endif /* _MIPS_CACHECTL_H_ */
     62