1 /* $NetBSD: cachectl.h,v 1.8 2008/04/28 20:23:28 martin 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef _MIPS_CACHECTL_H_ 33 #define _MIPS_CACHECTL_H_ 34 35 #include <sys/cdefs.h> 36 37 /* 38 * invalidate a range of addresses from the cache. 39 */ 40 int _cacheflush __P((void *addr, int nbytes, int cacheflags)); 41 int cacheflush __P((void *addr, int nbytes, int cacheflags)); 42 43 /* cacheflush() flags: */ 44 #define ICACHE 0x01 /* invalidate I-cache */ 45 #define DCACHE 0x02 /* writeback and invalidate D-cache */ 46 #define BCACHE (ICACHE|DCACHE) /* invalidate both caches, as above */ 47 48 49 int cachectl __P((void *addr, int nbytes, int cacheop)); 50 51 /* cachectl() cache operations: */ 52 #define CACHEABLE 0x00 /* make page(s) cacheable */ 53 #define UNCACHEABLE 0x01 /* make page(s) uncacheable */ 54 55 #ifdef _KERNEL 56 int mips_user_cachectl(struct proc *, vaddr_t, size_t, int); 57 int mips_user_cacheflush(struct proc *, vaddr_t, size_t, int); 58 #endif 59 #endif /* _MIPS_CACHECTL_H_ */ 60