1 /* $NetBSD: cachectl.h,v 1.5 2002/03/05 14:08:43 simonb 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 int cacheflush __P((void *addr, int nbytes, int cacheflags)); 49 50 /* cacheflush() flags: */ 51 #define ICACHE 0x01 /* invalidate I-cache */ 52 #define DCACHE 0x02 /* writeback and invalidate D-cache */ 53 #define BCACHE (ICACHE|DCACHE) /* invalidate both caches, as above */ 54 55 56 int cachectl __P((void *addr, int nbytes, int cacheop)); 57 58 /* cachectl() cache operations: */ 59 #define CACHEABLE 0x00 /* make page(s) cacheable */ 60 #define UNCACHEABLE 0x01 /* make page(s) uncacheable */ 61 62 #ifdef _KERNEL 63 int mips_user_cachectl(struct proc *, vaddr_t, int, int); 64 int mips_user_cacheflush(struct proc *, vaddr_t, int, int); 65 #endif 66 #endif /* _MIPS_CACHECTL_H_ */ 67