1/*	$NetBSD: cacheops_20.h,v 1.9 2008/04/28 20:23:26 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 Leo Weppelman
  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/*
 33 * Invalidate entire TLB.
 34 */
 35static __inline void __attribute__((__unused__))
 36TBIA_20(void)
 37{
 38	__asm volatile (" pflusha");
 39}
 40
 41/*
 42 * Invalidate any TLB entry for given VA (TB Invalidate Single)
 43 */
 44static __inline void __attribute__((__unused__))
 45TBIS_20(vaddr_t	va)
 46{
 47
 48	__asm volatile (" pflushs	#0,#0,%0@" : : "a" (va) );
 49}
 50
 51/*
 52 * Invalidate supervisor side of TLB
 53 */
 54static __inline void __attribute__((__unused__))
 55TBIAS_20(void)
 56{
 57	__asm volatile (" pflushs #4,#4");
 58}
 59
 60/*
 61 * Invalidate user side of TLB
 62 */
 63static __inline void __attribute__((__unused__))
 64TBIAU_20(void)
 65{
 66	__asm volatile (" pflushs #0,#4;");
 67}
 68
 69/*
 70 * Invalidate instruction cache
 71 */
 72static __inline void __attribute__((__unused__))
 73ICIA_20(void)
 74{
 75	__asm volatile (" movc %0,%%cacr;" : : "d" (IC_CLEAR));
 76}
 77
 78static __inline void __attribute__((__unused__))
 79ICPA_20(void)
 80{
 81	__asm volatile (" movc %0,%%cacr;" : : "d" (IC_CLEAR));
 82}
 83
 84/*
 85 * Invalidate data cache.
 86 * NOTE: we do not flush 68030/20 on-chip cache as there are no aliasing
 87 * problems with DC_WA.  The only cases we have to worry about are context
 88 * switch and TLB changes, both of which are handled "in-line" in resume
 89 * and TBI*.
 90 */
 91#define	DCIA_20()
 92#define	DCIS_20()
 93#define	DCIU_20()
 94#define	DCIAS_20(va)
 95#define	DCFA_20()
 96#define	DCPA_20()
 97
 98static __inline void __attribute__((__unused__))
 99PCIA_20(void)
100{
101	__asm volatile (" movc %0,%%cacr;" : : "d" (DC_CLEAR));
102}