1/*	$NetBSD: cacheops_machdep.h,v 1.8 2023/12/27 17:35:34 thorpej Exp $	*/
2
3/*
4 * Copyright (c) 1980, 1990, 1993
5 *	The Regents of the University of California.  All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * the Systems Programming Group of the University of Utah Computer
9 * Science Department.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 *    notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 *    notice, this list of conditions and the following disclaimer in the
18 *    documentation and/or other materials provided with the distribution.
19 * 3. Neither the name of the University nor the names of its contributors
20 *    may be used to endorse or promote products derived from this software
21 *    without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36/*
37 * Copyright (c) 1994, 1995 Gordon W. Ross
38 * Copyright (c) 1988 University of Utah.
39 *
40 * This code is derived from software contributed to Berkeley by
41 * the Systems Programming Group of the University of Utah Computer
42 * Science Department.
43 *
44 * Redistribution and use in source and binary forms, with or without
45 * modification, are permitted provided that the following conditions
46 * are met:
47 * 1. Redistributions of source code must retain the above copyright
48 *    notice, this list of conditions and the following disclaimer.
49 * 2. Redistributions in binary form must reproduce the above copyright
50 *    notice, this list of conditions and the following disclaimer in the
51 *    documentation and/or other materials provided with the distribution.
52 * 3. All advertising materials mentioning features or use of this software
53 *    must display the following acknowledgement:
54 *	This product includes software developed by the University of
55 *	California, Berkeley and its contributors.
56 * 4. Neither the name of the University nor the names of its contributors
57 *    may be used to endorse or promote products derived from this software
58 *    without specific prior written permission.
59 *
60 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
61 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
62 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
63 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
64 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
65 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
66 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
67 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
68 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
69 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
70 * SUCH DAMAGE.
71 */
72
73#ifndef _HP300_CACHEOPS_MACHDEP_H_
74#define	_HP300_CACHEOPS_MACHDEP_H_
75
76#include <machine/fcode.h>
77
78extern vaddr_t MMUbase;
79
80static __inline int __attribute__((__unused__))
81DCIA_md(void)
82{
83	volatile int *ip = (void *)(MMUbase + MMUCMD);
84
85	if (ectype != EC_VIRT) {
86		return 0;
87	}
88
89	*ip &= ~MMU_CEN;
90	*ip |= MMU_CEN;
91	return 1;
92}
93
94static __inline int __attribute__((__unused__))
95DCIS_md(void)
96{
97	volatile int *ip = (void *)(MMUbase + MMUSSTP);
98
99	if (ectype != EC_VIRT) {
100		return 0;
101	}
102
103	*ip = *ip;
104	return 1;
105}
106
107static __inline int __attribute__((__unused__))
108DCIU_md(void)
109{
110	volatile int *ip = (void *)(MMUbase + MMUUSTP);
111
112	if (ectype != EC_VIRT) {
113		return 0;
114	}
115
116	*ip = *ip;
117	return 1;
118}
119
120static __inline int __attribute__((__unused__))
121PCIA_md(void)
122{
123	volatile int *ip = (void *)(MMUbase + MMUCMD);
124
125	if (ectype != EC_PHYS || cputype != CPU_68030) {
126		return 0;
127	}
128
129	*ip &= ~MMU_CEN;
130	*ip |= MMU_CEN;
131
132	/*
133	 * only some '030 models (345/370/375/400) have external PAC,
134	 * so we need to do the standard flushing as well.
135	 */
136
137	return 0;
138}
139
140static __inline int __attribute__((__unused__))
141TBIA_md(void)
142{
143	volatile int *ip = (void *)(MMUbase + MMUTBINVAL);
144
145	if (mmutype != MMU_HP) {
146		return 0;
147	}
148
149	(void) *ip;
150	return 1;
151}
152
153static __inline int __attribute__((__unused__))
154TBIS_md(vaddr_t va)
155{
156	register vaddr_t r_va __asm("%a1") = va;
157	int s;
158
159	if (mmutype != MMU_HP) {
160		return 0;
161	}
162
163	s = splhigh();
164	__asm volatile (" movc   %0, %%dfc;"	/* select purge space */
165			  " movsl  %3, %1@;"	/* purge it */
166			  " movc   %2, %%dfc;"
167			  : : "r" (FC_PURGE), "a" (r_va), "r" (FC_USERD),
168			  "r" (0));
169	splx(s);
170	return 1;
171}
172
173static __inline int __attribute__((__unused__))
174TBIAS_md(void)
175{
176	volatile int *ip = (void *)(MMUbase + MMUTBINVAL);
177
178	if (mmutype != MMU_HP) {
179		return 0;
180	}
181
182	*ip = 0x8000;
183	return 1;
184}
185
186static __inline int __attribute__((__unused__))
187TBIAU_md(void)
188{
189	volatile int *ip = (void *)(MMUbase + MMUTBINVAL);
190
191	if (mmutype != MMU_HP) {
192		return 0;
193	}
194
195	*ip = 0;
196	return 1;
197}
198#endif /* _HP300_CACHEOPS_MACHDEP_H_ */
199