tc_3000_300.c revision 1.1
1 /* $NetBSD: tc_3000_300.c,v 1.1 1995/03/08 00:39:06 cgd Exp $ */ 2 3 /* 4 * Copyright (c) 1994, 1995 Carnegie-Mellon University. 5 * All rights reserved. 6 * 7 * Author: Chris G. Demetriou 8 * 9 * Permission to use, copy, modify and distribute this software and 10 * its documentation is hereby granted, provided that both the copyright 11 * notice and this permission notice appear in all copies of the 12 * software, derivative works or modified versions, and any portions 13 * thereof, and that both notices appear in supporting documentation. 14 * 15 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 16 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 17 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 18 * 19 * Carnegie Mellon requests users of this software to return to 20 * 21 * Software Distribution Coordinator or Software.Distribution (at) CS.CMU.EDU 22 * School of Computer Science 23 * Carnegie Mellon University 24 * Pittsburgh PA 15213-3890 25 * 26 * any improvements or extensions that they make and grant Carnegie the 27 * rights to redistribute these changes. 28 */ 29 30 #include <sys/param.h> 31 #include <sys/device.h> 32 33 #include <machine/autoconf.h> 34 #include <machine/pte.h> 35 36 #include <alpha/tc/tc.h> 37 #include <alpha/tc/tc_3000_300.h> 38 39 /* XXX ESTABLISH, DISESTABLISH */ 40 void tc_3000_300_intr_setup __P((void)); 41 void tc_3000_300_intr_establish 42 __P((struct confargs *, intr_handler_t, void *)); 43 void tc_3000_300_intr_disestablish __P((struct confargs *)); 44 void tc_3000_300_iointr __P((void *, int)); 45 int tc_3000_300_getdev __P((struct confargs *)); 46 47 #define KV(x) ((caddr_t)phystok0seg(x)) 48 #define TC_3000_300_NSLOTS 5 49 #define TC_3000_300_MAXDEVS 5 50 51 static struct tc_slot_desc dec_3000_300_slots[TC_3000_300_NSLOTS] = { 52 { KV(0x100000000), }, /* slot 0 - TC option slot 0 */ 53 { KV(0x120000000), }, /* slot 1 - TC option slot 1 */ 54 { KV(0x180000000), }, /* slot 2 - TCDS ASIC on cpu board */ 55 { KV(0x1a0000000), }, /* slot 3 - IOCTL ASIC on cpu board */ 56 { KV(0x1c0000000), }, /* slot 4 - CXTurbo on cpu board */ 57 }; 58 59 static struct confargs dec_3000_300_devs[TC_3000_300_MAXDEVS] = { 60 { "PMAGB-BA", 4, 0x02000000, }, 61 { "IOCTL ", 3, 0x00000000, }, 62 { "PMAZ-DS ", 2, 0x00000000, }, 63 { NULL, 1, 0x0, }, 64 { NULL, 0, 0x0, }, 65 }; 66 67 /* Indices into the struct confargs array. */ 68 #define TC_3000_300_DEV_CXTURBO 0 69 #define TC_3000_300_DEV_IOCTL 1 70 #define TC_3000_300_DEV_TCDS 2 71 #define TC_3000_300_DEV_OPT1 3 72 #define TC_3000_300_DEV_OPT0 4 73 74 struct tc_cpu_desc dec_3000_300_cpu = { 75 dec_3000_300_slots, TC_3000_300_NSLOTS, 76 dec_3000_300_devs, TC_3000_300_MAXDEVS, 77 tc_3000_300_intr_setup, 78 tc_3000_300_intr_establish, 79 tc_3000_300_intr_disestablish, 80 tc_3000_300_iointr, 81 }; 82 83 intr_handler_t tc_3000_300_intrhand[TC_3000_300_MAXDEVS]; 84 void *tc_3000_300_intrval[TC_3000_300_MAXDEVS]; 85 86 void 87 tc_3000_300_intr_setup() 88 { 89 int i; 90 91 /* Set up interrupt handlers. */ 92 for (i = 0; i < TC_3000_300_MAXDEVS; i++) { 93 tc_3000_300_intrhand[i] = tc_intrnull; 94 tc_3000_300_intrval[i] = (void *)(long)i; 95 } 96 } 97 98 void 99 tc_3000_300_intr_establish(ca, handler, val) 100 struct confargs *ca; 101 int (*handler) __P((void *)); 102 void *val; 103 { 104 int dev = tc_3000_300_getdev(ca); 105 106 #ifdef DIAGNOSTIC 107 if (dev == -1) 108 panic("tc_3000_300_intr_establish: dev == -1"); 109 #endif 110 111 if (tc_3000_300_intrhand[dev] != tc_intrnull) 112 panic("tc_3000_300_intr_establish: dev %d twice", dev); 113 114 tc_3000_300_intrhand[dev] = handler; 115 tc_3000_300_intrval[dev] = val; 116 117 /* XXX ENABLE INTERRUPT MASK FOR DEV */ 118 } 119 120 void 121 tc_3000_300_intr_disestablish(ca) 122 struct confargs *ca; 123 { 124 int dev = tc_3000_300_getdev(ca); 125 126 #ifdef DIAGNOSTIC 127 if (dev == -1) 128 panic("tc_3000_300_intr_disestablish: somebody goofed"); 129 #endif 130 131 if (tc_3000_300_intrhand[dev] == tc_intrnull) 132 panic("tc_3000_300_intr_disestablish: dev %d missing intr", 133 dev); 134 135 tc_3000_300_intrhand[dev] = tc_intrnull; 136 tc_3000_300_intrval[dev] = (void *)(long)dev; 137 138 /* XXX DISABLE INTERRUPT MASK FOR DEV */ 139 } 140 141 void 142 tc_3000_300_iointr(framep, vec) 143 void *framep; 144 int vec; 145 { 146 u_int32_t ir; 147 int ifound; 148 149 #ifdef DIAGNOSTIC 150 int s; 151 if (vec != 0x800) 152 panic("INVALID ASSUMPTION: vec %x, not 0x800", vec); 153 s = splhigh(); 154 if (s != PSL_IPL_IO) 155 panic("INVALID ASSUMPTION: IPL %d, not %d", s, PSL_IPL_IO); 156 splx(s); 157 #endif 158 159 do { 160 MB(); 161 MAGIC_READ; 162 MB(); 163 164 ifound = 0; 165 #define CHECKINTR(slot, bits) \ 166 if (ir & bits) { \ 167 ifound = 1; \ 168 (*tc_3000_300_intrhand[slot]) \ 169 (tc_3000_300_intrval[slot]); \ 170 } 171 /* Do them in order of priority; highest slot # first. */ 172 CHECKINTR(TC_3000_300_DEV_CXTURBO, TC_3000_300_IR_CXTURBO); 173 CHECKINTR(TC_3000_300_DEV_IOCTL, TC_3000_300_IR_IOCTL); 174 CHECKINTR(TC_3000_300_DEV_TCDS, TC_3000_300_IR_TCDS); 175 #if 0 176 CHECKINTR(TC_3000_300_DEV_OPT1, TC_3000_300_IR_OPT1); 177 CHECKINTR(TC_3000_300_DEV_OPT0, TC_3000_300_IR_OPT0); 178 #else 179 /* XXX XXX XXX CHECK OPTION SLOT INTERRUPTS!!! */ 180 #endif 181 #undef CHECKINTR 182 183 184 #ifdef DIAGNOSTIC 185 #define PRINTINTR(msg, bits) \ 186 if (ir & bits) \ 187 printf(msg); 188 PRINTINTR("BCache tag parity error\n", 189 TC_3000_300_IR_BCTAGPARITY); 190 PRINTINTR("TC overrun error\n", TC_3000_300_IR_TCOVERRUN); 191 PRINTINTR("TC I/O timeout\n", TC_3000_300_IR_TCTIMEOUT); 192 PRINTINTR("Bcache parity error\n", 193 TC_3000_300_IR_BCACHEPARITY); 194 PRINTINTR("Memory parity error\n", TC_3000_300_IR_MEMPARITY); 195 #undef PRINTINTR 196 #endif 197 } while (ifound); 198 } 199 200 int 201 tc_3000_300_getdev(ca) 202 struct confargs *ca; 203 { 204 int i; 205 206 for (i = 0; i < TC_3000_300_MAXDEVS; i++) 207 if (ca->ca_slot == dec_3000_300_devs[i].ca_slot && 208 ca->ca_offset == dec_3000_300_devs[i].ca_offset && 209 !strncmp(ca->ca_name, dec_3000_300_devs[i].ca_name)) 210 return (i); 211 212 return (-1); 213 } 214
Indexes created Thu Oct 02 14:10:14 GMT 2025