crime.c revision 1.33
1 /* $NetBSD: crime.c,v 1.33 2008/08/08 16:05:47 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 1.33 2008/08/08 16:05:47 tsutsui Exp $"); 42 43 #include <sys/param.h> 44 #include <sys/device.h> 45 #include <sys/systm.h> 46 #include <sys/kernel.h> 47 #include <sys/cpu.h> 48 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 #define DISABLE_CRIME_WATCHDOG 63 64 static int crime_match(struct device *, struct cfdata *, void *); 65 static void crime_attach(struct device *, struct device *, void *); 66 void crime_bus_reset(void); 67 void crime_watchdog_reset(void); 68 void crime_watchdog_disable(void); 69 void crime_intr(uint32_t, uint32_t, uint32_t, uint32_t); 70 void *crime_intr_establish(int, int, int (*)(void *), void *); 71 72 static bus_space_tag_t crm_iot; 73 static bus_space_handle_t crm_ioh; 74 75 CFATTACH_DECL(crime, sizeof(struct crime_softc), 76 crime_match, crime_attach, NULL, NULL); 77 78 #define CRIME_NINTR 32 /* XXX */ 79 80 struct { 81 int (*func)(void *); 82 void *arg; 83 } crime[CRIME_NINTR]; 84 85 static int 86 crime_match(struct device *parent, struct cfdata *match, void *aux) 87 { 88 89 /* 90 * The CRIME is in the O2. 91 */ 92 if (mach_type == MACH_SGI_IP32) 93 return 1; 94 95 return 0; 96 } 97 98 static void 99 crime_attach(struct device *parent, struct device *self, void *aux) 100 { 101 struct mainbus_attach_args *ma = aux; 102 uint64_t crm_id; 103 uint64_t baseline, endline; 104 uint32_t startctr, endctr, cps; 105 106 crm_iot = SGIMIPS_BUS_SPACE_CRIME; 107 108 if (bus_space_map(crm_iot, ma->ma_addr, 0 /* XXX */, 109 BUS_SPACE_MAP_LINEAR, &crm_ioh)) 110 panic("%s: can't map I/O space", __func__); 111 112 crm_id = bus_space_read_8(crm_iot, crm_ioh, CRIME_REV); 113 114 aprint_naive(": system ASIC"); 115 116 switch ((crm_id & CRIME_ID_IDBITS) >> CRIME_ID_IDSHIFT) { 117 case 0x0b: 118 aprint_normal(": rev 1.5"); 119 break; 120 121 case 0x0a: 122 if ((crm_id >> 32) == 0) 123 aprint_normal(": rev 1.1"); 124 else if ((crm_id >> 32) == 1) 125 aprint_normal(": rev 1.3"); 126 else 127 aprint_normal(": rev 1.4"); 128 break; 129 130 case 0x00: 131 aprint_normal(": Petty CRIME"); 132 break; 133 134 default: 135 aprint_normal(": Unknown CRIME"); 136 break; 137 } 138 139 aprint_normal(" (CRIME_ID: %" PRIu64 ")\n", crm_id); 140 141 /* reset CRIME CPU & memory error registers */ 142 crime_bus_reset(); 143 144 crime_watchdog_disable(); 145 146 #define CRIME_TIMER_FREQ 66666666 /* crime clock is 66.7MHz */ 147 148 baseline = bus_space_read_8(crm_iot, crm_ioh, CRIME_TIME) 149 & CRIME_TIME_MASK; 150 startctr = mips3_cp0_count_read(); 151 152 /* read both cp0 and crime counters for 100ms */ 153 do { 154 endline = bus_space_read_8(crm_iot, crm_ioh, CRIME_TIME) 155 & CRIME_TIME_MASK; 156 endctr = mips3_cp0_count_read(); 157 } while (endline - baseline < (CRIME_TIMER_FREQ / 10)); 158 159 cps = (endctr - startctr) * 10; 160 curcpu()->ci_cpu_freq = cps; 161 if (mips_cpu_flags & CPU_MIPS_DOUBLE_COUNT) 162 curcpu()->ci_cpu_freq *= 2; 163 curcpu()->ci_cycles_per_hz = (cps + (hz / 2)) / hz; 164 curcpu()->ci_divisor_delay = (cps + (1000000 / 2)) / 1000000; 165 166 /* Turn on memory error and crime error interrupts. 167 All others turned on as devices are registered. */ 168 bus_space_write_8(crm_iot, crm_ioh, CRIME_INTMASK, 169 CRIME_INT_MEMERR | 170 CRIME_INT_CRMERR | 171 CRIME_INT_VICE | 172 CRIME_INT_VID_OUT | 173 CRIME_INT_VID_IN2 | 174 CRIME_INT_VID_IN1); 175 bus_space_write_8(crm_iot, crm_ioh, CRIME_INTSTAT, 0); 176 bus_space_write_8(crm_iot, crm_ioh, CRIME_SOFTINT, 0); 177 bus_space_write_8(crm_iot, crm_ioh, CRIME_HARDINT, 0); 178 179 platform.bus_reset = crime_bus_reset; 180 platform.watchdog_reset = crime_watchdog_reset; 181 platform.watchdog_disable = crime_watchdog_disable; 182 platform.watchdog_enable = crime_watchdog_reset; 183 platform.intr_establish = crime_intr_establish; 184 platform.intr0 = crime_intr; 185 } 186 187 /* 188 * XXX: sharing interrupts? 189 */ 190 191 void * 192 crime_intr_establish(int irq, int level, int (*func)(void *), void *arg) 193 { 194 195 if (irq < 16) 196 return mace_intr_establish(irq, level, func, arg); 197 198 if (crime[irq].func != NULL) 199 return NULL; /* panic("Cannot share CRIME interrupts!"); */ 200 201 crime[irq].func = func; 202 crime[irq].arg = arg; 203 204 crime_intr_mask(irq); 205 206 return (void *)&crime[irq]; 207 } 208 209 void 210 crime_intr(uint32_t status, uint32_t cause, uint32_t pc, uint32_t ipending) 211 { 212 uint64_t crime_intmask; 213 uint64_t crime_intstat; 214 uint64_t crime_ipending; 215 uint64_t address, stat; 216 int i; 217 218 crime_intmask = bus_space_read_8(crm_iot, crm_ioh, CRIME_INTMASK); 219 crime_intstat = bus_space_read_8(crm_iot, crm_ioh, CRIME_INTSTAT); 220 crime_ipending = (crime_intstat & crime_intmask); 221 222 if (crime_ipending & 0xffff) 223 mace_intr(crime_ipending & 0xffff); 224 225 if (crime_ipending & 0xffff0000) { 226 /* 227 * CRIME interrupts for CPU and memory errors 228 */ 229 if (crime_ipending & CRIME_INT_MEMERR) { 230 address = bus_space_read_8(crm_iot, crm_ioh, 231 CRIME_MEM_ERROR_ADDR); 232 stat = bus_space_read_8(crm_iot, crm_ioh, 233 CRIME_MEM_ERROR_STAT); 234 printf("crime: memory error address %" PRIu64 235 " status %" PRIu64 "\n", address << 2, stat); 236 crime_bus_reset(); 237 } 238 239 if (crime_ipending & CRIME_INT_CRMERR) { 240 stat = bus_space_read_8(crm_iot, crm_ioh, 241 CRIME_CPU_ERROR_STAT); 242 printf("crime: cpu error %" PRIu64 " at" 243 " address %" PRIu64 "\n", stat, 244 bus_space_read_8(crm_iot, crm_ioh, 245 CRIME_CPU_ERROR_ADDR)); 246 crime_bus_reset(); 247 } 248 } 249 250 crime_ipending &= ~0xffff; 251 252 if (crime_ipending) { 253 for (i = 16; i < CRIME_NINTR; i++) { 254 if ((crime_ipending & (1 << i)) && 255 crime[i].func != NULL) 256 (*crime[i].func)(crime[i].arg); 257 } 258 } 259 } 260 261 void 262 crime_intr_mask(unsigned int intr) 263 { 264 uint64_t mask; 265 266 mask = bus_space_read_8(crm_iot, crm_ioh, CRIME_INTMASK); 267 mask |= (1 << intr); 268 bus_space_write_8(crm_iot, crm_ioh, CRIME_INTMASK, mask); 269 } 270 271 void 272 crime_intr_unmask(unsigned int intr) 273 { 274 uint64_t mask; 275 276 mask = bus_space_read_8(crm_iot, crm_ioh, CRIME_INTMASK); 277 mask &= ~(1 << intr); 278 bus_space_write_8(crm_iot, crm_ioh, CRIME_INTMASK, mask); 279 } 280 281 void 282 crime_bus_reset(void) 283 { 284 285 bus_space_write_8(crm_iot, crm_ioh, CRIME_CPU_ERROR_STAT, 0); 286 bus_space_write_8(crm_iot, crm_ioh, CRIME_MEM_ERROR_STAT, 0); 287 } 288 289 void 290 crime_watchdog_reset(void) 291 { 292 293 #ifdef DISABLE_CRIME_WATCHDOG 294 bus_space_write_8(crm_iot, crm_ioh, CRIME_WATCHDOG, 0); 295 #else 296 /* enable watchdog timer, clear it */ 297 bus_space_write_8(crm_iot, crm_ioh, 298 CRIME_CONTROL, CRIME_CONTROL_DOG_ENABLE); 299 bus_space_write_8(crm_iot, crm_ioh, CRIME_WATCHDOG, 0); 300 #endif 301 } 302 303 void 304 crime_watchdog_disable(void) 305 { 306 uint64_t reg; 307 308 bus_space_write_8(crm_iot, crm_ioh, CRIME_WATCHDOG, 0); 309 reg = bus_space_read_8(crm_iot, crm_ioh, CRIME_CONTROL) 310 & ~CRIME_CONTROL_DOG_ENABLE; 311 bus_space_write_8(crm_iot, crm_ioh, CRIME_CONTROL, reg); 312 } 313 314 void 315 crime_reboot(void) 316 { 317 318 bus_space_write_8(crm_iot, crm_ioh, CRIME_CONTROL, 319 CRIME_CONTROL_HARD_RESET); 320 for (;;) 321 ; 322 } 323
Indexes created Sat Sep 27 22:09:54 GMT 2025