1/*	$NetBSD: cacheops_60.h,v 1.12 2007/10/17 19:55:05 garbled 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_60(void)
37{
38	__asm volatile (" .word 0xf518" ); /*  pflusha */
39}
40
41/*
42 * Invalidate any TLB entry for given VA (TB Invalidate Single)
43 */
44static __inline void __attribute__((__unused__))
45TBIS_60(vaddr_t va)
46{
47	register uint8_t *r_va __asm("%a0") = (void *)va;
48	int	tmp;
49
50	__asm volatile (" movc   %1, %%dfc;"	/* select supervisor	*/
51			  " .word 0xf508;"	/* pflush %a0@		*/
52			  " moveq  %3, %1;"	/* select user		*/
53			  " movc   %1, %%dfc;"
54			  " .word 0xf508;"	/* pflush %a0@		*/
55			  " movc   %%cacr,%1;"
56			  " orl    %4,%1;"
57			  " movc   %1,%%cacr" : "=d" (tmp) :
58			  "0" (FC_SUPERD), "a" (r_va), "i" (FC_USERD),
59			  "i" (IC60_CABC));
60}
61
62/*
63 * Invalidate supervisor side of TLB
64 */
65static __inline void __attribute__((__unused__))
66TBIAS_60(void)
67{
68	int	tmp;
69
70	/*
71	 * Cannot specify supervisor/user on pflusha, so we flush all
72	 */
73	__asm volatile (" .word 0xf518;"
74			  " movc  %%cacr,%0;"
75			  " orl   %1,%0;"
76			  " movc  %0,%%cacr" /* clear all branch cache
77			 		        entries */
78			  : "=d" (tmp) : "i" (IC60_CABC) );
79}
80
81/*
82 * Invalidate user side of TLB
83 */
84static __inline void __attribute__((__unused__))
85TBIAU_60(void)
86{
87	int	tmp;
88
89	/*
90	 * Cannot specify supervisor/user on pflusha, so we flush all
91	 */
92	__asm volatile (" .word 0xf518;"
93			  " movc  %%cacr,%0;"
94			  " orl   %1,%0;"
95			  " movc  %0,%%cacr" /* clear all branch cache
96			 		        entries */
97			  : "=d" (tmp) : "i" (IC60_CUBC) );
98}
99
100/*
101 * Invalidate instruction cache
102 */
103static __inline void __attribute__((__unused__))
104ICIA_60(void)
105{
106	/* inva ic (also clears branch cache) */
107	__asm volatile (" .word 0xf498;");
108}
109
110static __inline void __attribute__((__unused__))
111ICPA_60(void)
112{
113	/* inva ic (also clears branch cache) */
114	__asm volatile (" .word 0xf498;");
115}
116
117/*
118 * Invalidate data cache.
119 */
120static __inline void __attribute__((__unused__))
121DCIA_60(void)
122{
123	__asm volatile (" .word 0xf478;"); /* cpusha dc */
124}
125
126static __inline void __attribute__((__unused__))
127DCIS_60(void)
128{
129	__asm volatile (" .word 0xf478;"); /* cpusha dc */
130}
131
132static __inline void __attribute__((__unused__))
133DCIU_60(void)
134{
135	__asm volatile (" .word 0xf478;"); /* cpusha dc */
136}
137
138static __inline void __attribute__((__unused__))
139DCIAS_60(paddr_t pa)
140{
141	register uint8_t *r_pa __asm("%a0") = (void *)pa;
142
143	__asm volatile (" .word 0xf468;" : : "a" (r_pa)); /* cpushl dc,%a0@ */
144}
145
146static __inline void __attribute__((__unused__))
147PCIA_60(void)
148{
149	__asm volatile (" .word 0xf478;"); /* cpusha dc */
150}
151
152#define	DCFA_60()	DCFA_40()
153#define	DCPA_60()	DCPA_40()
154#define	ICPL_60(pa)	ICPL_40(pa)
155#define	ICPP_60(pa)	ICPP_40(pa)
156#define	DCPL_60(pa)	DCPL_40(pa)
157#define	DCPP_60(pa)	DCPP_40(pa)
158#define	DCFL_60(pa)	DCFL_40(pa)
159#define	DCFP_60(pa)	DCFP_40(pa)
160