1 /* $NetBSD: cacheops_machdep.h,v 1.7 2006/02/16 20:17:13 perry 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 extern vaddr_t MMUbase; 77 78 static __inline int __attribute__((__unused__)) 79 DCIA_md(void) 80 { 81 volatile int *ip = (void *)(MMUbase + MMUCMD); 82 83 if (ectype != EC_VIRT) { 84 return 0; 85 } 86 87 *ip &= ~MMU_CEN; 88 *ip |= MMU_CEN; 89 return 1; 90 } 91 92 static __inline int __attribute__((__unused__)) 93 DCIS_md(void) 94 { 95 volatile int *ip = (void *)(MMUbase + MMUSSTP); 96 97 if (ectype != EC_VIRT) { 98 return 0; 99 } 100 101 *ip = *ip; 102 return 1; 103 } 104 105 static __inline int __attribute__((__unused__)) 106 DCIU_md(void) 107 { 108 volatile int *ip = (void *)(MMUbase + MMUUSTP); 109 110 if (ectype != EC_VIRT) { 111 return 0; 112 } 113 114 *ip = *ip; 115 return 1; 116 } 117 118 static __inline int __attribute__((__unused__)) 119 PCIA_md(void) 120 { 121 volatile int *ip = (void *)(MMUbase + MMUCMD); 122 123 if (ectype != EC_PHYS || cputype != CPU_68030) { 124 return 0; 125 } 126 127 *ip &= ~MMU_CEN; 128 *ip |= MMU_CEN; 129 130 /* 131 * only some '030 models (345/370/375/400) have external PAC, 132 * so we need to do the standard flushing as well. 133 */ 134 135 return 0; 136 } 137 138 static __inline int __attribute__((__unused__)) 139 TBIA_md(void) 140 { 141 volatile int *ip = (void *)(MMUbase + MMUTBINVAL); 142 143 if (mmutype != MMU_HP) { 144 return 0; 145 } 146 147 (void) *ip; 148 return 1; 149 } 150 151 static __inline int __attribute__((__unused__)) 152 TBIS_md(vaddr_t va) 153 { 154 register vaddr_t r_va __asm("%a1") = va; 155 int s; 156 157 if (mmutype != MMU_HP) { 158 return 0; 159 } 160 161 s = splhigh(); 162 __asm volatile (" movc %0, %%dfc;" /* select purge space */ 163 " movsl %3, %1@;" /* purge it */ 164 " movc %2, %%dfc;" 165 : : "r" (FC_PURGE), "a" (r_va), "r" (FC_USERD), 166 "r" (0)); 167 splx(s); 168 return 1; 169 } 170 171 static __inline int __attribute__((__unused__)) 172 TBIAS_md(void) 173 { 174 volatile int *ip = (void *)(MMUbase + MMUTBINVAL); 175 176 if (mmutype != MMU_HP) { 177 return 0; 178 } 179 180 *ip = 0x8000; 181 return 1; 182 } 183 184 static __inline int __attribute__((__unused__)) 185 TBIAU_md(void) 186 { 187 volatile int *ip = (void *)(MMUbase + MMUTBINVAL); 188 189 if (mmutype != MMU_HP) { 190 return 0; 191 } 192 193 *ip = 0; 194 return 1; 195 } 196 #endif /* _HP300_CACHEOPS_MACHDEP_H_ */ 197