| 1 | /* $NetBSD: cachectl.h,v 1.11 2020/07/26 08:08:41 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 | * |
| 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 | __BEGIN_DECLS |
| 38 | /* |
| 39 | * invalidate a range of addresses from the cache. |
| 40 | */ |
| 41 | int _cacheflush(void *, size_t, int); |
| 42 | int cacheflush(void *, size_t, int); |
| 43 | |
| 44 | /* cacheflush() flags: */ |
| 45 | #define ICACHE 0x01 /* invalidate I-cache */ |
| 46 | #define DCACHE 0x02 /* writeback and invalidate D-cache */ |
| 47 | #define BCACHE (ICACHE|DCACHE) /* invalidate both caches, as above */ |
| 48 | |
| 49 | |
| 50 | int cachectl(void *, size_t, int); |
| 51 | |
| 52 | /* cachectl() cache operations: */ |
| 53 | #define CACHEABLE 0x00 /* make page(s) cacheable */ |
| 54 | #define UNCACHEABLE 0x01 /* make page(s) uncacheable */ |
| 55 | |
| 56 | __END_DECLS |
| 57 | |
| 58 | #ifdef _KERNEL |
| 59 | int mips_user_cachectl(struct proc *, vaddr_t, size_t, int); |
| 60 | int mips_user_cacheflush(struct proc *, vaddr_t, size_t, int); |
| 61 | #endif |
| 62 | #endif /* _MIPS_CACHECTL_H_ */ |