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
78 extern vaddr_t MMUbase;
79
80 static __inline int __attribute__((__unused__))
DCIA_md(void)81 DCIA_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
94 static __inline int __attribute__((__unused__))
DCIS_md(void)95 DCIS_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
107 static __inline int __attribute__((__unused__))
DCIU_md(void)108 DCIU_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
120 static __inline int __attribute__((__unused__))
PCIA_md(void)121 PCIA_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
140 static __inline int __attribute__((__unused__))
TBIA_md(void)141 TBIA_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
153 static __inline int __attribute__((__unused__))
TBIS_md(vaddr_t va)154 TBIS_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
173 static __inline int __attribute__((__unused__))
TBIAS_md(void)174 TBIAS_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
186 static __inline int __attribute__((__unused__))
TBIAU_md(void)187 TBIAU_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