tc_3000_500.c revision 1.6
1 /* $NetBSD: tc_3000_500.c,v 1.6 1996/06/05 00:30:54 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 #ifndef EVCNT_COUNTERS 36 #include <machine/intrcnt.h> 37 #endif 38 39 #include <dev/tc/tcvar.h> 40 #include <alpha/tc/tc_conf.h> 41 #include <alpha/tc/tc_3000_500.h> 42 43 void tc_3000_500_intr_setup __P((void)); 44 void tc_3000_500_intr_establish __P((struct device *, void *, 45 tc_intrlevel_t, int (*)(void *), void *)); 46 void tc_3000_500_intr_disestablish __P((struct device *, void *)); 47 void tc_3000_500_iointr __P((void *, int)); 48 49 int tc_3000_500_intrnull __P((void *)); 50 51 #define C(x) ((void *)(u_long)x) 52 #define KV(x) (phystok0seg(x)) 53 54 struct tc_slotdesc tc_3000_500_slots[] = { 55 { KV(0x100000000), C(TC_3000_500_DEV_OPT0), }, /* 0 - opt slot 0 */ 56 { KV(0x120000000), C(TC_3000_500_DEV_OPT1), }, /* 1 - opt slot 1 */ 57 { KV(0x140000000), C(TC_3000_500_DEV_OPT2), }, /* 2 - opt slot 2 */ 58 { KV(0x160000000), C(TC_3000_500_DEV_OPT3), }, /* 3 - opt slot 3 */ 59 { KV(0x180000000), C(TC_3000_500_DEV_OPT4), }, /* 4 - opt slot 4 */ 60 { KV(0x1a0000000), C(TC_3000_500_DEV_OPT5), }, /* 5 - opt slot 5 */ 61 { KV(0x1c0000000), C(TC_3000_500_DEV_BOGUS), }, /* 6 - TCDS ASIC */ 62 { KV(0x1e0000000), C(TC_3000_500_DEV_BOGUS), }, /* 7 - IOCTL ASIC */ 63 }; 64 int tc_3000_500_nslots = 65 sizeof(tc_3000_500_slots) / sizeof(tc_3000_500_slots[0]); 66 67 struct tc_builtin tc_3000_500_builtins[] = { 68 { "FLAMG-IO", 7, 0x00000000, C(TC_3000_500_DEV_IOASIC), }, 69 { "PMAGB-BA", 7, 0x02000000, C(TC_3000_500_DEV_CXTURBO), }, 70 { "PMAZ-DS ", 6, 0x00000000, C(TC_3000_500_DEV_TCDS), }, 71 }; 72 int tc_3000_500_nbuiltins = 73 sizeof(tc_3000_500_builtins) / sizeof(tc_3000_500_builtins[0]); 74 75 u_int32_t tc_3000_500_intrbits[TC_3000_500_NCOOKIES] = { 76 TC_3000_500_IR_OPT0, 77 TC_3000_500_IR_OPT1, 78 TC_3000_500_IR_OPT2, 79 TC_3000_500_IR_OPT3, 80 TC_3000_500_IR_OPT4, 81 TC_3000_500_IR_OPT5, 82 TC_3000_500_IR_TCDS, 83 TC_3000_500_IR_IOASIC, 84 TC_3000_500_IR_CXTURBO, 85 }; 86 87 struct tcintr { 88 int (*tci_func) __P((void *)); 89 void *tci_arg; 90 } tc_3000_500_intr[TC_3000_500_NCOOKIES]; 91 92 u_int32_t tc_3000_500_imask; /* intrs we want to ignore; mirrors IMR. */ 93 94 void 95 tc_3000_500_intr_setup() 96 { 97 u_long i; 98 99 /* 100 * Disable all slot interrupts. Note that this cannot 101 * actually disable CXTurbo, TCDS, and IOASIC interrupts. 102 */ 103 tc_3000_500_imask = *(volatile u_int32_t *)TC_3000_500_IMR_READ; 104 for (i = 0; i < TC_3000_500_NCOOKIES; i++) 105 tc_3000_500_imask |= tc_3000_500_intrbits[i]; 106 *(volatile u_int32_t *)TC_3000_500_IMR_WRITE = tc_3000_500_imask; 107 tc_mb(); 108 109 /* 110 * Set up interrupt handlers. 111 */ 112 for (i = 0; i < TC_3000_500_NCOOKIES; i++) { 113 tc_3000_500_intr[i].tci_func = tc_3000_500_intrnull; 114 tc_3000_500_intr[i].tci_arg = (void *)i; 115 } 116 } 117 118 void 119 tc_3000_500_intr_establish(tcadev, cookie, level, func, arg) 120 struct device *tcadev; 121 void *cookie, *arg; 122 tc_intrlevel_t level; 123 int (*func) __P((void *)); 124 { 125 u_long dev = (u_long)cookie; 126 127 #ifdef DIAGNOSTIC 128 /* XXX bounds-check cookie. */ 129 #endif 130 131 if (tc_3000_500_intr[dev].tci_func != tc_3000_500_intrnull) 132 panic("tc_3000_500_intr_establish: cookie %d twice", dev); 133 134 tc_3000_500_intr[dev].tci_func = func; 135 tc_3000_500_intr[dev].tci_arg = arg; 136 137 tc_3000_500_imask &= ~tc_3000_500_intrbits[dev]; 138 *(volatile u_int32_t *)TC_3000_500_IMR_WRITE = tc_3000_500_imask; 139 tc_mb(); 140 } 141 142 void 143 tc_3000_500_intr_disestablish(tcadev, cookie) 144 struct device *tcadev; 145 void *cookie; 146 { 147 u_long dev = (u_long)cookie; 148 149 #ifdef DIAGNOSTIC 150 /* XXX bounds-check cookie. */ 151 #endif 152 153 if (tc_3000_500_intr[dev].tci_func == tc_3000_500_intrnull) 154 panic("tc_3000_500_intr_disestablish: cookie %d bad intr", 155 dev); 156 157 tc_3000_500_imask |= tc_3000_500_intrbits[dev]; 158 *(volatile u_int32_t *)TC_3000_500_IMR_WRITE = tc_3000_500_imask; 159 tc_mb(); 160 161 tc_3000_500_intr[dev].tci_func = tc_3000_500_intrnull; 162 tc_3000_500_intr[dev].tci_arg = (void *)dev; 163 } 164 165 int 166 tc_3000_500_intrnull(val) 167 void *val; 168 { 169 170 panic("tc_3000_500_intrnull: uncaught TC intr for cookie %ld\n", 171 (u_long)val); 172 } 173 174 void 175 tc_3000_500_iointr(framep, vec) 176 void *framep; 177 int vec; 178 { 179 u_int32_t ir; 180 int ifound; 181 182 #ifdef DIAGNOSTIC 183 int s; 184 if (vec != 0x800) 185 panic("INVALID ASSUMPTION: vec %x, not 0x800", vec); 186 s = splhigh(); 187 if (s != PSL_IPL_IO) 188 panic("INVALID ASSUMPTION: IPL %d, not %d", s, PSL_IPL_IO); 189 splx(s); 190 #endif 191 192 do { 193 tc_syncbus(); 194 ir = *(volatile u_int32_t *)TC_3000_500_IR_CLEAR; 195 196 /* Ignore interrupts that we haven't enabled. */ 197 ir &= ~(tc_3000_500_imask & 0x1ff); 198 199 ifound = 0; 200 201 #ifdef EVCNT_COUNTERS 202 /* No interrupt counting via evcnt counters */ 203 XXX BREAK HERE XXX 204 #else /* !EVCNT_COUNTERS */ 205 #define INCRINTRCNT(slot) intrcnt[INTRCNT_KN15 + slot]++ 206 #endif /* EVCNT_COUNTERS */ 207 208 #define CHECKINTR(slot) \ 209 if (ir & tc_3000_500_intrbits[slot]) { \ 210 ifound = 1; \ 211 INCRINTRCNT(slot); \ 212 (*tc_3000_500_intr[slot].tci_func) \ 213 (tc_3000_500_intr[slot].tci_arg); \ 214 } 215 /* Do them in order of priority; highest slot # first. */ 216 CHECKINTR(TC_3000_500_DEV_CXTURBO); 217 CHECKINTR(TC_3000_500_DEV_IOASIC); 218 CHECKINTR(TC_3000_500_DEV_TCDS); 219 CHECKINTR(TC_3000_500_DEV_OPT5); 220 CHECKINTR(TC_3000_500_DEV_OPT4); 221 CHECKINTR(TC_3000_500_DEV_OPT3); 222 CHECKINTR(TC_3000_500_DEV_OPT2); 223 CHECKINTR(TC_3000_500_DEV_OPT1); 224 CHECKINTR(TC_3000_500_DEV_OPT0); 225 #undef CHECKINTR 226 227 #ifdef DIAGNOSTIC 228 #define PRINTINTR(msg, bits) \ 229 if (ir & bits) \ 230 printf(msg); 231 PRINTINTR("Second error occurred\n", TC_3000_500_IR_ERR2); 232 PRINTINTR("DMA buffer error\n", TC_3000_500_IR_DMABE); 233 PRINTINTR("DMA cross 2K boundary\n", TC_3000_500_IR_DMA2K); 234 PRINTINTR("TC reset in progress\n", TC_3000_500_IR_TCRESET); 235 PRINTINTR("TC parity error\n", TC_3000_500_IR_TCPAR); 236 PRINTINTR("DMA tag error\n", TC_3000_500_IR_DMATAG); 237 PRINTINTR("Single-bit error\n", TC_3000_500_IR_DMASBE); 238 PRINTINTR("Double-bit error\n", TC_3000_500_IR_DMADBE); 239 PRINTINTR("TC I/O timeout\n", TC_3000_500_IR_TCTIMEOUT); 240 PRINTINTR("DMA block too long\n", TC_3000_500_IR_DMABLOCK); 241 PRINTINTR("Invalid I/O address\n", TC_3000_500_IR_IOADDR); 242 PRINTINTR("DMA scatter/gather invalid\n", TC_3000_500_IR_DMASG); 243 PRINTINTR("Scatter/gather parity error\n", 244 TC_3000_500_IR_SGPAR); 245 #undef PRINTINTR 246 #endif 247 } while (ifound); 248 } 249 250 /* 251 * tc_3000_500_ioslot -- 252 * Set the PBS bits for devices on the TC. 253 */ 254 void 255 tc_3000_500_ioslot(slot, flags, set) 256 u_int32_t slot, flags; 257 int set; 258 { 259 volatile u_int32_t *iosp; 260 u_int32_t ios; 261 int s; 262 263 iosp = (volatile u_int32_t *)TC_3000_500_IOSLOT; 264 ios = *iosp; 265 flags <<= (slot * 3); 266 if (set) 267 ios |= flags; 268 else 269 ios &= ~flags; 270 s = splhigh(); 271 *iosp = ios; 272 tc_mb(); 273 splx(s); 274 } 275
Indexes created Thu Oct 02 10:09:58 GMT 2025