crime.c revision 1.26
1 /* $NetBSD: crime.c,v 1.26 2007/09/26 05:48:37 macallan 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 1.26 2007/09/26 05:48:37 macallan 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 CRIME_DISABLE_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(u_int32_t, u_int32_t, u_int32_t, u_int32_t); 70 void *crime_intr_establish(int, int, int (*)(void *), void *); 71 extern void mace_intr(int); /* XXX */ 72 73 static bus_space_tag_t crm_iot; 74 static bus_space_handle_t crm_ioh; 75 76 CFATTACH_DECL(crime, sizeof(struct crime_softc), 77 crime_match, crime_attach, NULL, NULL); 78 79 #define CRIME_NINTR 32 /* XXX */ 80 81 struct { 82 int (*func)(void *); 83 void *arg; 84 } crime[CRIME_NINTR]; 85 86 static int 87 crime_match(struct device *parent, struct cfdata *match, void *aux) 88 { 89 90 /* 91 * The CRIME is in the O2. 92 */ 93 if (mach_type == MACH_SGI_IP32) 94 return (1); 95 96 return (0); 97 } 98 99 static void 100 crime_attach(struct device *parent, struct device *self, void *aux) 101 { 102 struct mainbus_attach_args *ma = aux; 103 u_int64_t crm_id; 104 u_int64_t baseline; 105 u_int32_t cps; 106 107 crm_iot = SGIMIPS_BUS_SPACE_CRIME; 108 109 if (bus_space_map(crm_iot, ma->ma_addr, 0 /* XXX */, 110 BUS_SPACE_MAP_LINEAR, &crm_ioh)) 111 panic("crime_attach: can't map I/O space"); 112 113 crm_id = bus_space_read_8(crm_iot, crm_ioh, CRIME_REV); 114 115 aprint_naive(": system ASIC"); 116 117 switch ((crm_id & CRIME_ID_IDBITS) >> CRIME_ID_IDSHIFT) { 118 case 0x0b: 119 aprint_normal(": rev 1.5"); 120 break; 121 122 case 0x0a: 123 if ((crm_id >> 32) == 0) 124 aprint_normal(": rev 1.1"); 125 else if ((crm_id >> 32) == 1) 126 aprint_normal(": rev 1.3"); 127 else 128 aprint_normal(": rev 1.4"); 129 break; 130 131 case 0x00: 132 aprint_normal(": Petty CRIME"); 133 break; 134 135 default: 136 aprint_normal(": Unknown CRIME"); 137 break; 138 } 139 140 aprint_normal(" (CRIME_ID: %llx)\n", crm_id); 141 142 /* reset CRIME CPU & memory error registers */ 143 crime_bus_reset(); 144 145 bus_space_write_8(crm_iot, crm_ioh, CRIME_WATCHDOG, 0); 146 bus_space_write_8(crm_iot, crm_ioh, CRIME_CONTROL, 0); 147 148 baseline = bus_space_read_8(crm_iot, crm_ioh, CRIME_TIME) & CRIME_TIME_MASK; 149 cps = mips3_cp0_count_read(); 150 151 while (((bus_space_read_8(crm_iot, crm_ioh, CRIME_TIME) & CRIME_TIME_MASK) 152 - baseline) < 50 * 1000000 / 15) 153 continue; 154 cps = mips3_cp0_count_read() - cps; 155 cps = cps / 5; 156 157 /* Counter on R4k/R4400/R4600/R5k counts at half the CPU frequency */ 158 curcpu()->ci_cpu_freq = cps * 2 * hz; 159 curcpu()->ci_cycles_per_hz = curcpu()->ci_cpu_freq / (2 * hz); 160 curcpu()->ci_divisor_delay = curcpu()->ci_cpu_freq / (2 * 1000000); 161 MIPS_SET_CI_RECIPRICAL(curcpu()); 162 163 /* Turn on memory error and crime error interrupts. 164 All others turned on as devices are registered. */ 165 bus_space_write_8(crm_iot, crm_ioh, CRIME_INTMASK, 166 CRIME_INT_MEMERR | 167 CRIME_INT_CRMERR | 168 CRIME_INT_VICE | 169 CRIME_INT_VID_OUT | 170 CRIME_INT_VID_IN2 | 171 CRIME_INT_VID_IN1); 172 bus_space_write_8(crm_iot, crm_ioh, CRIME_INTSTAT, 0); 173 bus_space_write_8(crm_iot, crm_ioh, CRIME_SOFTINT, 0); 174 bus_space_write_8(crm_iot, crm_ioh, CRIME_HARDINT, 0); 175 176 platform.bus_reset = crime_bus_reset; 177 platform.watchdog_reset = crime_watchdog_reset; 178 platform.watchdog_disable = crime_watchdog_disable; 179 platform.watchdog_enable = crime_watchdog_reset; 180 platform.intr_establish = crime_intr_establish; 181 platform.intr0 = crime_intr; 182 } 183 184 /* 185 * XXX: sharing interrupts? 186 */ 187 188 void * 189 crime_intr_establish(int irq, int level, int (*func)(void *), void *arg) 190 { 191 if (irq < 16) 192 return mace_intr_establish(irq, level, func, arg); 193 194 if (crime[irq].func != NULL) 195 return NULL; /* panic("Cannot share CRIME interrupts!"); */ 196 197 crime[irq].func = func; 198 crime[irq].arg = arg; 199 200 crime_intr_mask(irq); 201 202 return (void *)&crime[irq]; 203 } 204 205 void 206 crime_intr(u_int32_t status, u_int32_t cause, u_int32_t pc, u_int32_t ipending) 207 { 208 u_int64_t crime_intmask; 209 u_int64_t crime_intstat; 210 u_int64_t crime_ipending; 211 int i; 212 213 crime_intmask = bus_space_read_8(crm_iot, crm_ioh, CRIME_INTMASK); 214 crime_intstat = bus_space_read_8(crm_iot, crm_ioh, CRIME_INTSTAT); 215 crime_ipending = (crime_intstat & crime_intmask); 216 217 if (crime_ipending & 0xffff) 218 mace_intr(crime_ipending & 0xffff); 219 220 if (crime_ipending & 0xffff0000) { 221 /* 222 * CRIME interrupts for CPU and memory errors 223 */ 224 if (crime_ipending & CRIME_INT_MEMERR) { 225 u_int64_t address = 226 bus_space_read_8(crm_iot, crm_ioh, CRIME_MEM_ERROR_ADDR); 227 u_int64_t status1 = 228 bus_space_read_8(crm_iot, crm_ioh, CRIME_MEM_ERROR_STAT); 229 printf("crime: memory error address %llx" 230 " status %llx\n", address << 2, status1); 231 crime_bus_reset(); 232 } 233 234 if (crime_ipending & CRIME_INT_CRMERR) { 235 u_int64_t stat = 236 bus_space_read_8(crm_iot, crm_ioh, CRIME_CPU_ERROR_STAT); 237 printf("crime: cpu error %llx at" 238 " address %llx\n", stat, 239 bus_space_read_8(crm_iot, crm_ioh, CRIME_CPU_ERROR_ADDR)); 240 crime_bus_reset(); 241 } 242 } 243 244 crime_ipending &= ~0xffff; 245 246 if (crime_ipending) 247 for (i = 16; i < CRIME_NINTR; i++) { 248 if ((crime_ipending & (1 << i)) && crime[i].func != NULL) 249 (*crime[i].func)(crime[i].arg); 250 } 251 } 252 253 void 254 crime_intr_mask(unsigned int intr) 255 { 256 u_int64_t mask; 257 258 mask = bus_space_read_8(crm_iot, crm_ioh, CRIME_INTMASK); 259 mask |= (1 << intr); 260 bus_space_write_8(crm_iot, crm_ioh, CRIME_INTMASK, mask); 261 } 262 263 void 264 crime_intr_unmask(unsigned int intr) 265 { 266 u_int64_t mask; 267 268 mask = bus_space_read_8(crm_iot, crm_ioh, CRIME_INTMASK); 269 mask &= ~(1 << intr); 270 bus_space_write_8(crm_iot, crm_ioh, CRIME_INTMASK, mask); 271 } 272 273 void 274 crime_bus_reset(void) 275 { 276 bus_space_write_8(crm_iot, crm_ioh, CRIME_CPU_ERROR_STAT, 0); 277 bus_space_write_8(crm_iot, crm_ioh, CRIME_MEM_ERROR_STAT, 0); 278 } 279 280 void 281 crime_watchdog_reset(void) 282 { 283 #ifdef CRIME_WATCHDOG_DISABLE 284 bus_space_write_8(crm_iot, crm_ioh, CRIME_WATCHDOG, 0); 285 #else 286 /* enable watchdog timer, clear it */ 287 bus_space_write_8(crm_iot, crm_ioh, 288 CRIME_CONTROL, CRIME_CONTROL_DOG_ENABLE); 289 bus_space_write_8(crm_iot, crm_ioh, CRIME_WATCHDOG, 0); 290 #endif 291 } 292 293 void 294 crime_watchdog_disable(void) 295 { 296 u_int64_t reg; 297 298 bus_space_write_8(crm_iot, crm_ioh, CRIME_WATCHDOG, 0); 299 reg = bus_space_read_8(crm_iot, crm_ioh, CRIME_CONTROL) 300 & ~CRIME_CONTROL_DOG_ENABLE; 301 bus_space_write_8(crm_iot, crm_ioh, CRIME_CONTROL, reg); 302 } 303 304 void 305 crime_reboot() 306 { 307 308 bus_space_write_8(crm_iot, crm_ioh, CRIME_CONTROL, 309 CRIME_CONTROL_HARD_RESET); 310 while(1); 311 } 312
Indexes created Thu Sep 25 16:09:42 GMT 2025