crime.c revision 1.21
1 /* $NetBSD: crime.c,v 1.21 2005/10/18 11:31:12 tsutsui Exp $ */ 2 3 /* 4 * Copyright (c) 2004 Christopher SEKIYA 5 * Copyright (c) 2000 Soren S. Jorvang 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed for the 19 * NetBSD Project. See http://www.NetBSD.org/ for 20 * information about NetBSD. 21 * 4. The name of the author may not be used to endorse or promote products 22 * derived from this software without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 25 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 26 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 27 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 28 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 29 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 30 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 31 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 32 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 33 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 34 */ 35 36 /* 37 * O2 CRIME 38 */ 39 40 #include <sys/cdefs.h> 41 __KERNEL_RCSID(0, "$NetBSD: crime.c,v 1.21 2005/10/18 11:31:12 tsutsui Exp $"); 42 43 #include <sys/param.h> 44 #include <sys/device.h> 45 #include <sys/systm.h> 46 #include <sys/kernel.h> 47 48 #include <machine/cpu.h> 49 #include <machine/locore.h> 50 #include <machine/autoconf.h> 51 #include <machine/bus.h> 52 #include <machine/intr.h> 53 #include <machine/machtype.h> 54 #include <machine/sysconf.h> 55 56 #include <sgimips/dev/crimevar.h> 57 #include <sgimips/dev/crimereg.h> 58 #include <sgimips/mace/macevar.h> 59 60 #include "locators.h" 61 62 static int crime_match(struct device *, struct cfdata *, void *); 63 static void crime_attach(struct device *, struct device *, void *); 64 void crime_bus_reset(void); 65 void crime_watchdog_reset(void); 66 void crime_watchdog_disable(void); 67 void crime_intr(u_int32_t, u_int32_t, u_int32_t, u_int32_t); 68 void *crime_intr_establish(int, int, int (*)(void *), void *); 69 extern void mace_intr(int); /* XXX */ 70 71 static bus_space_tag_t crm_iot; 72 static bus_space_handle_t crm_ioh; 73 74 CFATTACH_DECL(crime, sizeof(struct crime_softc), 75 crime_match, crime_attach, NULL, NULL); 76 77 #define CRIME_NINTR 32 /* XXX */ 78 79 struct { 80 int (*func)(void *); 81 void *arg; 82 } crime[CRIME_NINTR]; 83 84 static int 85 crime_match(struct device *parent, struct cfdata *match, void *aux) 86 { 87 88 /* 89 * The CRIME is in the O2. 90 */ 91 if (mach_type == MACH_SGI_IP32) 92 return (1); 93 94 return (0); 95 } 96 97 static void 98 crime_attach(struct device *parent, struct device *self, void *aux) 99 { 100 struct mainbus_attach_args *ma = aux; 101 u_int64_t crm_id; 102 u_int64_t baseline; 103 u_int32_t cps; 104 105 crm_iot = SGIMIPS_BUS_SPACE_CRIME; 106 107 if (bus_space_map(crm_iot, ma->ma_addr, 0 /* XXX */, 108 BUS_SPACE_MAP_LINEAR, &crm_ioh)) 109 panic("crime_attach: can't map I/O space"); 110 111 crm_id = bus_space_read_8(crm_iot, crm_ioh, CRIME_REV); 112 113 aprint_naive(": system ASIC"); 114 115 switch ((crm_id & CRIME_ID_IDBITS) >> CRIME_ID_IDSHIFT) { 116 case 0x0b: 117 aprint_normal(": rev 1.5"); 118 break; 119 120 case 0x0a: 121 if ((crm_id >> 32) == 0) 122 aprint_normal(": rev 1.1"); 123 else if ((crm_id >> 32) == 1) 124 aprint_normal(": rev 1.3"); 125 else 126 aprint_normal(": rev 1.4"); 127 break; 128 129 case 0x00: 130 aprint_normal(": Petty CRIME"); 131 break; 132 133 default: 134 aprint_normal(": Unknown CRIME"); 135 break; 136 } 137 138 aprint_normal(" (CRIME_ID: %llx)\n", crm_id); 139 140 /* reset CRIME CPU & memory error registers */ 141 crime_bus_reset(); 142 143 baseline = bus_space_read_8(crm_iot, crm_ioh, CRIME_TIME) & CRIME_TIME_MASK; 144 cps = mips3_cp0_count_read(); 145 146 while (((bus_space_read_8(crm_iot, crm_ioh, CRIME_TIME) & CRIME_TIME_MASK) 147 - baseline) < 50 * 1000000 / 15) 148 continue; 149 cps = mips3_cp0_count_read() - cps; 150 cps = cps / 5; 151 152 /* Counter on R4k/R4400/R4600/R5k counts at half the CPU frequency */ 153 curcpu()->ci_cpu_freq = cps * 2 * hz; 154 curcpu()->ci_cycles_per_hz = curcpu()->ci_cpu_freq / (2 * hz); 155 curcpu()->ci_divisor_delay = curcpu()->ci_cpu_freq / (2 * 1000000); 156 MIPS_SET_CI_RECIPRICAL(curcpu()); 157 158 /* Turn on memory error and crime error interrupts. 159 All others turned on as devices are registered. */ 160 bus_space_write_8(crm_iot, crm_ioh, CRIME_INTMASK, 161 CRIME_INT_MEMERR | 162 CRIME_INT_CRMERR | 163 CRIME_INT_VICE | 164 CRIME_INT_VID_OUT | 165 CRIME_INT_VID_IN2 | 166 CRIME_INT_VID_IN1); 167 bus_space_write_8(crm_iot, crm_ioh, CRIME_INTSTAT, 0); 168 bus_space_write_8(crm_iot, crm_ioh, CRIME_SOFTINT, 0); 169 bus_space_write_8(crm_iot, crm_ioh, CRIME_HARDINT, 0); 170 171 platform.bus_reset = crime_bus_reset; 172 platform.watchdog_reset = crime_watchdog_reset; 173 platform.watchdog_disable = crime_watchdog_disable; 174 platform.watchdog_enable = crime_watchdog_reset; 175 platform.intr_establish = crime_intr_establish; 176 platform.intr0 = crime_intr; 177 } 178 179 /* 180 * XXX: sharing interrupts? 181 */ 182 183 void * 184 crime_intr_establish(int irq, int level, int (*func)(void *), void *arg) 185 { 186 if (irq < 16) 187 return mace_intr_establish(irq, level, func, arg); 188 189 if (crime[irq].func != NULL) 190 return NULL; /* panic("Cannot share CRIME interrupts!"); */ 191 192 crime[irq].func = func; 193 crime[irq].arg = arg; 194 195 crime_intr_mask(irq); 196 197 return (void *)&crime[irq]; 198 } 199 200 void 201 crime_intr(u_int32_t status, u_int32_t cause, u_int32_t pc, u_int32_t ipending) 202 { 203 u_int64_t crime_intmask; 204 u_int64_t crime_intstat; 205 u_int64_t crime_ipending; 206 int i; 207 208 crime_intmask = bus_space_read_8(crm_iot, crm_ioh, CRIME_INTMASK); 209 crime_intstat = bus_space_read_8(crm_iot, crm_ioh, CRIME_INTSTAT); 210 crime_ipending = (crime_intstat & crime_intmask); 211 212 if (crime_ipending & 0xffff) 213 mace_intr(crime_ipending & 0xffff); 214 215 if (crime_ipending & 0xffff0000) { 216 /* 217 * CRIME interrupts for CPU and memory errors 218 */ 219 if (crime_ipending & CRIME_INT_MEMERR) { 220 u_int64_t address = 221 bus_space_read_8(crm_iot, crm_ioh, CRIME_MEM_ERROR_ADDR); 222 u_int64_t status1 = 223 bus_space_read_8(crm_iot, crm_ioh, CRIME_MEM_ERROR_STAT); 224 printf("crime: memory error address %llx" 225 " status %llx\n", address << 2, status1); 226 crime_bus_reset(); 227 } 228 229 if (crime_ipending & CRIME_INT_CRMERR) { 230 u_int64_t stat = 231 bus_space_read_8(crm_iot, crm_ioh, CRIME_CPU_ERROR_STAT); 232 printf("crime: cpu error %llx at" 233 " address %llx\n", stat, 234 bus_space_read_8(crm_iot, crm_ioh, CRIME_CPU_ERROR_ADDR)); 235 crime_bus_reset(); 236 } 237 } 238 239 crime_ipending &= 0xff00; 240 241 if (crime_ipending) 242 for (i = 0; i < CRIME_NINTR; i++) { 243 if ((crime_ipending & (1 << i)) && crime[i].func != NULL) 244 (*crime[i].func)(crime[i].arg); 245 } 246 } 247 248 void 249 crime_intr_mask(unsigned int intr) 250 { 251 u_int64_t mask; 252 253 mask = bus_space_read_8(crm_iot, crm_ioh, CRIME_INTMASK); 254 mask |= (1 << intr); 255 bus_space_write_8(crm_iot, crm_ioh, CRIME_INTMASK, mask); 256 } 257 258 void 259 crime_intr_unmask(unsigned int intr) 260 { 261 u_int64_t mask; 262 263 mask = bus_space_read_8(crm_iot, crm_ioh, CRIME_INTMASK); 264 mask &= ~(1 << intr); 265 bus_space_write_8(crm_iot, crm_ioh, CRIME_INTMASK, mask); 266 } 267 268 void 269 crime_bus_reset(void) 270 { 271 bus_space_write_8(crm_iot, crm_ioh, CRIME_CPU_ERROR_STAT, 0); 272 bus_space_write_8(crm_iot, crm_ioh, CRIME_MEM_ERROR_STAT, 0); 273 } 274 275 void 276 crime_watchdog_reset(void) 277 { 278 /* enable watchdog timer, clear it */ 279 bus_space_write_8(crm_iot, crm_ioh, 280 CRIME_CONTROL, CRIME_CONTROL_DOG_ENABLE); 281 bus_space_write_8(crm_iot, crm_ioh, CRIME_WATCHDOG, 0); 282 } 283 284 void 285 crime_watchdog_disable(void) 286 { 287 u_int64_t reg; 288 289 bus_space_write_8(crm_iot, crm_ioh, CRIME_WATCHDOG, 0); 290 reg = bus_space_read_8(crm_iot, crm_ioh, CRIME_CONTROL) 291 & ~CRIME_CONTROL_DOG_ENABLE; 292 bus_space_write_8(crm_iot, crm_ioh, CRIME_CONTROL, reg); 293 } 294
Indexes created Fri Sep 26 20:09:58 GMT 2025