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      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_ */
     63