cpu.c revision 1.81
1 /* $NetBSD: cpu.c,v 1.81 2012/05/20 18:08:05 skrll Exp $ */ 2 3 /* 4 * Copyright (c) 1995 Mark Brinicombe. 5 * Copyright (c) 1995 Brini. 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 by Brini. 19 * 4. The name of the company nor the name of the author may be used to 20 * endorse or promote products derived from this software without specific 21 * prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR IMPLIED 24 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 25 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 26 * IN NO EVENT SHALL BRINI OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 27 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 28 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 29 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * RiscBSD kernel project 36 * 37 * cpu.c 38 * 39 * Probing and configuration for the master CPU 40 * 41 * Created : 10/10/95 42 */ 43 44 #include "opt_armfpe.h" 45 #include "opt_multiprocessor.h" 46 47 #include <sys/param.h> 48 49 __KERNEL_RCSID(0, "$NetBSD: cpu.c,v 1.81 2012/05/20 18:08:05 skrll Exp $"); 50 51 #include <sys/systm.h> 52 #include <sys/malloc.h> 53 #include <sys/device.h> 54 #include <sys/proc.h> 55 #include <sys/conf.h> 56 #include <uvm/uvm_extern.h> 57 #include <machine/cpu.h> 58 59 #include <arm/cpuconf.h> 60 #include <arm/undefined.h> 61 62 #ifdef ARMFPE 63 #include <machine/bootconfig.h> /* For boot args */ 64 #include <arm/fpe-arm/armfpe.h> 65 #endif 66 67 #ifdef FPU_VFP 68 #include <arm/vfpvar.h> 69 #endif 70 71 char cpu_model[256]; 72 73 /* Prototypes */ 74 void identify_arm_cpu(struct device *dv, struct cpu_info *); 75 76 /* 77 * Identify the master (boot) CPU 78 */ 79 80 void 81 cpu_attach(struct device *dv) 82 { 83 int usearmfpe; 84 85 usearmfpe = 1; /* when compiled in, its enabled by default */ 86 87 curcpu()->ci_dev = dv; 88 89 evcnt_attach_dynamic(&curcpu()->ci_arm700bugcount, EVCNT_TYPE_MISC, 90 NULL, dv->dv_xname, "arm700swibug"); 91 92 /* Get the CPU ID from coprocessor 15 */ 93 94 curcpu()->ci_arm_cpuid = cpu_id(); 95 curcpu()->ci_arm_cputype = curcpu()->ci_arm_cpuid & CPU_ID_CPU_MASK; 96 curcpu()->ci_arm_cpurev = 97 curcpu()->ci_arm_cpuid & CPU_ID_REVISION_MASK; 98 99 identify_arm_cpu(dv, curcpu()); 100 101 if (curcpu()->ci_arm_cputype == CPU_ID_SA110 && 102 curcpu()->ci_arm_cpurev < 3) { 103 aprint_normal("%s: SA-110 with bugged STM^ instruction\n", 104 dv->dv_xname); 105 } 106 107 #ifdef CPU_ARM8 108 if ((curcpu()->ci_arm_cpuid & CPU_ID_CPU_MASK) == CPU_ID_ARM810) { 109 int clock = arm8_clock_config(0, 0); 110 char *fclk; 111 aprint_normal("%s: ARM810 cp15=%02x", dv->dv_xname, clock); 112 aprint_normal(" clock:%s", (clock & 1) ? " dynamic" : ""); 113 aprint_normal("%s", (clock & 2) ? " sync" : ""); 114 switch ((clock >> 2) & 3) { 115 case 0: 116 fclk = "bus clock"; 117 break; 118 case 1: 119 fclk = "ref clock"; 120 break; 121 case 3: 122 fclk = "pll"; 123 break; 124 default: 125 fclk = "illegal"; 126 break; 127 } 128 aprint_normal(" fclk source=%s\n", fclk); 129 } 130 #endif 131 132 #ifdef ARMFPE 133 /* 134 * Ok now we test for an FPA 135 * At this point no floating point emulator has been installed. 136 * This means any FP instruction will cause undefined exception. 137 * We install a temporay coproc 1 handler which will modify 138 * undefined_test if it is called. 139 * We then try to read the FP status register. If undefined_test 140 * has been decremented then the instruction was not handled by 141 * an FPA so we know the FPA is missing. If undefined_test is 142 * still 1 then we know the instruction was handled by an FPA. 143 * We then remove our test handler and look at the 144 * FP status register for identification. 145 */ 146 147 /* 148 * Ok if ARMFPE is defined and the boot options request the 149 * ARM FPE then it will be installed as the FPE. 150 * This is just while I work on integrating the new FPE. 151 * It means the new FPE gets installed if compiled int (ARMFPE 152 * defined) and also gives me a on/off option when I boot in 153 * case the new FPE is causing panics. 154 */ 155 156 157 if (boot_args) 158 get_bootconf_option(boot_args, "armfpe", 159 BOOTOPT_TYPE_BOOLEAN, &usearmfpe); 160 if (usearmfpe) 161 initialise_arm_fpe(); 162 #endif 163 164 #ifdef FPU_VFP 165 vfp_attach(); 166 #endif 167 } 168 169 enum cpu_class { 170 CPU_CLASS_NONE, 171 CPU_CLASS_ARM2, 172 CPU_CLASS_ARM2AS, 173 CPU_CLASS_ARM3, 174 CPU_CLASS_ARM6, 175 CPU_CLASS_ARM7, 176 CPU_CLASS_ARM7TDMI, 177 CPU_CLASS_ARM8, 178 CPU_CLASS_ARM9TDMI, 179 CPU_CLASS_ARM9ES, 180 CPU_CLASS_ARM9EJS, 181 CPU_CLASS_ARM10E, 182 CPU_CLASS_ARM10EJ, 183 CPU_CLASS_SA1, 184 CPU_CLASS_XSCALE, 185 CPU_CLASS_ARM11J, 186 CPU_CLASS_ARMV4, 187 CPU_CLASS_CORTEX, 188 }; 189 190 static const char * const generic_steppings[16] = { 191 "rev 0", "rev 1", "rev 2", "rev 3", 192 "rev 4", "rev 5", "rev 6", "rev 7", 193 "rev 8", "rev 9", "rev 10", "rev 11", 194 "rev 12", "rev 13", "rev 14", "rev 15", 195 }; 196 197 static const char * const pN_steppings[16] = { 198 "*p0", "*p1", "*p2", "*p3", "*p4", "*p5", "*p6", "*p7", 199 "*p8", "*p9", "*p10", "*p11", "*p12", "*p13", "*p14", "*p15", 200 }; 201 202 static const char * const sa110_steppings[16] = { 203 "rev 0", "step J", "step K", "step S", 204 "step T", "rev 5", "rev 6", "rev 7", 205 "rev 8", "rev 9", "rev 10", "rev 11", 206 "rev 12", "rev 13", "rev 14", "rev 15", 207 }; 208 209 static const char * const sa1100_steppings[16] = { 210 "rev 0", "step B", "step C", "rev 3", 211 "rev 4", "rev 5", "rev 6", "rev 7", 212 "step D", "step E", "rev 10" "step G", 213 "rev 12", "rev 13", "rev 14", "rev 15", 214 }; 215 216 static const char * const sa1110_steppings[16] = { 217 "step A-0", "rev 1", "rev 2", "rev 3", 218 "step B-0", "step B-1", "step B-2", "step B-3", 219 "step B-4", "step B-5", "rev 10", "rev 11", 220 "rev 12", "rev 13", "rev 14", "rev 15", 221 }; 222 223 static const char * const ixp12x0_steppings[16] = { 224 "(IXP1200 step A)", "(IXP1200 step B)", 225 "rev 2", "(IXP1200 step C)", 226 "(IXP1200 step D)", "(IXP1240/1250 step A)", 227 "(IXP1240 step B)", "(IXP1250 step B)", 228 "rev 8", "rev 9", "rev 10", "rev 11", 229 "rev 12", "rev 13", "rev 14", "rev 15", 230 }; 231 232 static const char * const xscale_steppings[16] = { 233 "step A-0", "step A-1", "step B-0", "step C-0", 234 "step D-0", "rev 5", "rev 6", "rev 7", 235 "rev 8", "rev 9", "rev 10", "rev 11", 236 "rev 12", "rev 13", "rev 14", "rev 15", 237 }; 238 239 static const char * const i80321_steppings[16] = { 240 "step A-0", "step B-0", "rev 2", "rev 3", 241 "rev 4", "rev 5", "rev 6", "rev 7", 242 "rev 8", "rev 9", "rev 10", "rev 11", 243 "rev 12", "rev 13", "rev 14", "rev 15", 244 }; 245 246 static const char * const i80219_steppings[16] = { 247 "step A-0", "rev 1", "rev 2", "rev 3", 248 "rev 4", "rev 5", "rev 6", "rev 7", 249 "rev 8", "rev 9", "rev 10", "rev 11", 250 "rev 12", "rev 13", "rev 14", "rev 15", 251 }; 252 253 /* Steppings for PXA2[15]0 */ 254 static const char * const pxa2x0_steppings[16] = { 255 "step A-0", "step A-1", "step B-0", "step B-1", 256 "step B-2", "step C-0", "rev 6", "rev 7", 257 "rev 8", "rev 9", "rev 10", "rev 11", 258 "rev 12", "rev 13", "rev 14", "rev 15", 259 }; 260 261 /* Steppings for PXA255/26x. 262 * rev 5: PXA26x B0, rev 6: PXA255 A0 263 */ 264 static const char * const pxa255_steppings[16] = { 265 "rev 0", "rev 1", "rev 2", "step A-0", 266 "rev 4", "step B-0", "step A-0", "rev 7", 267 "rev 8", "rev 9", "rev 10", "rev 11", 268 "rev 12", "rev 13", "rev 14", "rev 15", 269 }; 270 271 /* Stepping for PXA27x */ 272 static const char * const pxa27x_steppings[16] = { 273 "step A-0", "step A-1", "step B-0", "step B-1", 274 "step C-0", "rev 5", "rev 6", "rev 7", 275 "rev 8", "rev 9", "rev 10", "rev 11", 276 "rev 12", "rev 13", "rev 14", "rev 15", 277 }; 278 279 static const char * const ixp425_steppings[16] = { 280 "step 0", "rev 1", "rev 2", "rev 3", 281 "rev 4", "rev 5", "rev 6", "rev 7", 282 "rev 8", "rev 9", "rev 10", "rev 11", 283 "rev 12", "rev 13", "rev 14", "rev 15", 284 }; 285 286 struct cpuidtab { 287 u_int32_t cpuid; 288 enum cpu_class cpu_class; 289 const char *cpu_classname; 290 const char * const *cpu_steppings; 291 }; 292 293 const struct cpuidtab cpuids[] = { 294 { CPU_ID_ARM2, CPU_CLASS_ARM2, "ARM2", 295 generic_steppings }, 296 { CPU_ID_ARM250, CPU_CLASS_ARM2AS, "ARM250", 297 generic_steppings }, 298 299 { CPU_ID_ARM3, CPU_CLASS_ARM3, "ARM3", 300 generic_steppings }, 301 302 { CPU_ID_ARM600, CPU_CLASS_ARM6, "ARM600", 303 generic_steppings }, 304 { CPU_ID_ARM610, CPU_CLASS_ARM6, "ARM610", 305 generic_steppings }, 306 { CPU_ID_ARM620, CPU_CLASS_ARM6, "ARM620", 307 generic_steppings }, 308 309 { CPU_ID_ARM700, CPU_CLASS_ARM7, "ARM700", 310 generic_steppings }, 311 { CPU_ID_ARM710, CPU_CLASS_ARM7, "ARM710", 312 generic_steppings }, 313 { CPU_ID_ARM7500, CPU_CLASS_ARM7, "ARM7500", 314 generic_steppings }, 315 { CPU_ID_ARM710A, CPU_CLASS_ARM7, "ARM710a", 316 generic_steppings }, 317 { CPU_ID_ARM7500FE, CPU_CLASS_ARM7, "ARM7500FE", 318 generic_steppings }, 319 { CPU_ID_ARM710T, CPU_CLASS_ARM7TDMI, "ARM710T", 320 generic_steppings }, 321 { CPU_ID_ARM720T, CPU_CLASS_ARM7TDMI, "ARM720T", 322 generic_steppings }, 323 { CPU_ID_ARM740T8K, CPU_CLASS_ARM7TDMI, "ARM740T (8 KB cache)", 324 generic_steppings }, 325 { CPU_ID_ARM740T4K, CPU_CLASS_ARM7TDMI, "ARM740T (4 KB cache)", 326 generic_steppings }, 327 328 { CPU_ID_ARM810, CPU_CLASS_ARM8, "ARM810", 329 generic_steppings }, 330 331 { CPU_ID_ARM920T, CPU_CLASS_ARM9TDMI, "ARM920T", 332 generic_steppings }, 333 { CPU_ID_ARM922T, CPU_CLASS_ARM9TDMI, "ARM922T", 334 generic_steppings }, 335 { CPU_ID_ARM926EJS, CPU_CLASS_ARM9EJS, "ARM926EJ-S", 336 generic_steppings }, 337 { CPU_ID_ARM940T, CPU_CLASS_ARM9TDMI, "ARM940T", 338 generic_steppings }, 339 { CPU_ID_ARM946ES, CPU_CLASS_ARM9ES, "ARM946E-S", 340 generic_steppings }, 341 { CPU_ID_ARM966ES, CPU_CLASS_ARM9ES, "ARM966E-S", 342 generic_steppings }, 343 { CPU_ID_ARM966ESR1, CPU_CLASS_ARM9ES, "ARM966E-S", 344 generic_steppings }, 345 { CPU_ID_TI925T, CPU_CLASS_ARM9TDMI, "TI ARM925T", 346 generic_steppings }, 347 { CPU_ID_MV88SV131, CPU_CLASS_ARM9ES, "Sheeva 88SV131", 348 generic_steppings }, 349 { CPU_ID_MV88FR571_VD, CPU_CLASS_ARM9ES, "Sheeva 88FR571-vd", 350 generic_steppings }, 351 352 { CPU_ID_ARM1020E, CPU_CLASS_ARM10E, "ARM1020E", 353 generic_steppings }, 354 { CPU_ID_ARM1022ES, CPU_CLASS_ARM10E, "ARM1022E-S", 355 generic_steppings }, 356 { CPU_ID_ARM1026EJS, CPU_CLASS_ARM10EJ, "ARM1026EJ-S", 357 generic_steppings }, 358 359 { CPU_ID_SA110, CPU_CLASS_SA1, "SA-110", 360 sa110_steppings }, 361 { CPU_ID_SA1100, CPU_CLASS_SA1, "SA-1100", 362 sa1100_steppings }, 363 { CPU_ID_SA1110, CPU_CLASS_SA1, "SA-1110", 364 sa1110_steppings }, 365 366 { CPU_ID_IXP1200, CPU_CLASS_SA1, "IXP1200", 367 ixp12x0_steppings }, 368 369 { CPU_ID_80200, CPU_CLASS_XSCALE, "i80200", 370 xscale_steppings }, 371 372 { CPU_ID_80321_400, CPU_CLASS_XSCALE, "i80321 400MHz", 373 i80321_steppings }, 374 { CPU_ID_80321_600, CPU_CLASS_XSCALE, "i80321 600MHz", 375 i80321_steppings }, 376 { CPU_ID_80321_400_B0, CPU_CLASS_XSCALE, "i80321 400MHz", 377 i80321_steppings }, 378 { CPU_ID_80321_600_B0, CPU_CLASS_XSCALE, "i80321 600MHz", 379 i80321_steppings }, 380 381 { CPU_ID_80219_400, CPU_CLASS_XSCALE, "i80219 400MHz", 382 i80219_steppings }, 383 { CPU_ID_80219_600, CPU_CLASS_XSCALE, "i80219 600MHz", 384 i80219_steppings }, 385 386 { CPU_ID_PXA27X, CPU_CLASS_XSCALE, "PXA27x", 387 pxa27x_steppings }, 388 { CPU_ID_PXA250A, CPU_CLASS_XSCALE, "PXA250", 389 pxa2x0_steppings }, 390 { CPU_ID_PXA210A, CPU_CLASS_XSCALE, "PXA210", 391 pxa2x0_steppings }, 392 { CPU_ID_PXA250B, CPU_CLASS_XSCALE, "PXA250", 393 pxa2x0_steppings }, 394 { CPU_ID_PXA210B, CPU_CLASS_XSCALE, "PXA210", 395 pxa2x0_steppings }, 396 { CPU_ID_PXA250C, CPU_CLASS_XSCALE, "PXA255/26x", 397 pxa255_steppings }, 398 { CPU_ID_PXA210C, CPU_CLASS_XSCALE, "PXA210", 399 pxa2x0_steppings }, 400 401 { CPU_ID_IXP425_533, CPU_CLASS_XSCALE, "IXP425 533MHz", 402 ixp425_steppings }, 403 { CPU_ID_IXP425_400, CPU_CLASS_XSCALE, "IXP425 400MHz", 404 ixp425_steppings }, 405 { CPU_ID_IXP425_266, CPU_CLASS_XSCALE, "IXP425 266MHz", 406 ixp425_steppings }, 407 408 { CPU_ID_ARM1136JS, CPU_CLASS_ARM11J, "ARM1136J-S r0", 409 pN_steppings }, 410 { CPU_ID_ARM1136JSR1, CPU_CLASS_ARM11J, "ARM1136J-S r1", 411 pN_steppings }, 412 #if 0 413 /* The ARM1156T2-S only has a memory protection unit */ 414 { CPU_ID_ARM1156T2S, CPU_CLASS_ARM11J, "ARM1156T2-S r0", 415 pN_steppings }, 416 #endif 417 { CPU_ID_ARM1176JZS, CPU_CLASS_ARM11J, "ARM1176JZ-S r0", 418 pN_steppings }, 419 420 { CPU_ID_ARM11MPCORE, CPU_CLASS_ARM11J, "ARM11 MPCore", 421 generic_steppings }, 422 423 { CPU_ID_CORTEXA8R1, CPU_CLASS_CORTEX, "Cortex-A8 r1", 424 pN_steppings }, 425 { CPU_ID_CORTEXA8R2, CPU_CLASS_CORTEX, "Cortex-A8 r2", 426 pN_steppings }, 427 { CPU_ID_CORTEXA8R3, CPU_CLASS_CORTEX, "Cortex-A8 r3", 428 pN_steppings }, 429 { CPU_ID_CORTEXA9R1, CPU_CLASS_CORTEX, "Cortex-A9 r1", 430 pN_steppings }, 431 { CPU_ID_CORTEXA8R3, CPU_CLASS_ARM11J, "Cortex-A8 r3", 432 pN_steppings }, 433 434 { CPU_ID_FA526, CPU_CLASS_ARMV4, "FA526", 435 generic_steppings }, 436 437 { 0, CPU_CLASS_NONE, NULL, NULL } 438 }; 439 440 struct cpu_classtab { 441 const char *class_name; 442 const char *class_option; 443 }; 444 445 const struct cpu_classtab cpu_classes[] = { 446 [CPU_CLASS_NONE] = { "unknown", NULL }, 447 [CPU_CLASS_ARM2] = { "ARM2", "CPU_ARM2" }, 448 [CPU_CLASS_ARM2AS] = { "ARM2as", "CPU_ARM250" }, 449 [CPU_CLASS_ARM3] = { "ARM3", "CPU_ARM3" }, 450 [CPU_CLASS_ARM6] = { "ARM6", "CPU_ARM6" }, 451 [CPU_CLASS_ARM7] = { "ARM7", "CPU_ARM7" }, 452 [CPU_CLASS_ARM7TDMI] = { "ARM7TDMI", "CPU_ARM7TDMI" }, 453 [CPU_CLASS_ARM8] = { "ARM8", "CPU_ARM8" }, 454 [CPU_CLASS_ARM9TDMI] = { "ARM9TDMI", NULL }, 455 [CPU_CLASS_ARM9ES] = { "ARM9E-S", "CPU_ARM9E" }, 456 [CPU_CLASS_ARM9EJS] = { "ARM9EJ-S", "CPU_ARM9E" }, 457 [CPU_CLASS_ARM10E] = { "ARM10E", "CPU_ARM10" }, 458 [CPU_CLASS_ARM10EJ] = { "ARM10EJ", "CPU_ARM10" }, 459 [CPU_CLASS_SA1] = { "SA-1", "CPU_SA110" }, 460 [CPU_CLASS_XSCALE] = { "XScale", "CPU_XSCALE_..." }, 461 [CPU_CLASS_ARM11J] = { "ARM11J", "CPU_ARM11" }, 462 [CPU_CLASS_ARMV4] = { "ARMv4", "CPU_ARMV4" }, 463 [CPU_CLASS_CORTEX] = { "Cortex", "CPU_CORTEX" }, 464 }; 465 466 /* 467 * Report the type of the specified arm processor. This uses the generic and 468 * arm specific information in the CPU structure to identify the processor. 469 * The remaining fields in the CPU structure are filled in appropriately. 470 */ 471 472 static const char * const wtnames[] = { 473 "write-through", 474 "write-back", 475 "write-back", 476 "**unknown 3**", 477 "**unknown 4**", 478 "write-back-locking", /* XXX XScale-specific? */ 479 "write-back-locking-A", 480 "write-back-locking-B", 481 "**unknown 8**", 482 "**unknown 9**", 483 "**unknown 10**", 484 "**unknown 11**", 485 "**unknown 12**", 486 "**unknown 13**", 487 "write-back-locking-C", 488 "**unknown 15**", 489 }; 490 491 void 492 identify_arm_cpu(struct device *dv, struct cpu_info *ci) 493 { 494 u_int cpuid; 495 enum cpu_class cpu_class = CPU_CLASS_NONE; 496 int i; 497 const char *steppingstr; 498 499 cpuid = ci->ci_arm_cpuid; 500 501 if (cpuid == 0) { 502 aprint_error("Processor failed probe - no CPU ID\n"); 503 return; 504 } 505 506 for (i = 0; cpuids[i].cpuid != 0; i++) 507 if (cpuids[i].cpuid == (cpuid & CPU_ID_CPU_MASK)) { 508 cpu_class = cpuids[i].cpu_class; 509 steppingstr = cpuids[i].cpu_steppings[cpuid & 510 CPU_ID_REVISION_MASK], 511 sprintf(cpu_model, "%s%s%s (%s core)", 512 cpuids[i].cpu_classname, 513 steppingstr[0] == '*' ? "" : " ", 514 &steppingstr[steppingstr[0] == '*'], 515 cpu_classes[cpu_class].class_name); 516 break; 517 } 518 519 if (cpuids[i].cpuid == 0) 520 sprintf(cpu_model, "unknown CPU (ID = 0x%x)", cpuid); 521 522 aprint_naive(": %s\n", cpu_model); 523 aprint_normal(": %s\n", cpu_model); 524 525 aprint_normal("%s:", dv->dv_xname); 526 527 switch (cpu_class) { 528 case CPU_CLASS_ARM6: 529 case CPU_CLASS_ARM7: 530 case CPU_CLASS_ARM7TDMI: 531 case CPU_CLASS_ARM8: 532 if ((ci->ci_ctrl & CPU_CONTROL_IDC_ENABLE) == 0) 533 aprint_normal(" IDC disabled"); 534 else 535 aprint_normal(" IDC enabled"); 536 break; 537 case CPU_CLASS_ARM9TDMI: 538 case CPU_CLASS_ARM9ES: 539 case CPU_CLASS_ARM9EJS: 540 case CPU_CLASS_ARM10E: 541 case CPU_CLASS_ARM10EJ: 542 case CPU_CLASS_SA1: 543 case CPU_CLASS_XSCALE: 544 case CPU_CLASS_ARM11J: 545 case CPU_CLASS_ARMV4: 546 case CPU_CLASS_CORTEX: 547 if ((ci->ci_ctrl & CPU_CONTROL_DC_ENABLE) == 0) 548 aprint_normal(" DC disabled"); 549 else 550 aprint_normal(" DC enabled"); 551 if ((ci->ci_ctrl & CPU_CONTROL_IC_ENABLE) == 0) 552 aprint_normal(" IC disabled"); 553 else 554 aprint_normal(" IC enabled"); 555 break; 556 default: 557 break; 558 } 559 if ((ci->ci_ctrl & CPU_CONTROL_WBUF_ENABLE) == 0) 560 aprint_normal(" WB disabled"); 561 else 562 aprint_normal(" WB enabled"); 563 564 if (ci->ci_ctrl & CPU_CONTROL_LABT_ENABLE) 565 aprint_normal(" LABT"); 566 else 567 aprint_normal(" EABT"); 568 569 if (ci->ci_ctrl & CPU_CONTROL_BPRD_ENABLE) 570 aprint_normal(" branch prediction enabled"); 571 572 aprint_normal("\n"); 573 574 /* Print cache info. */ 575 if (arm_picache_line_size == 0 && arm_pdcache_line_size == 0) 576 goto skip_pcache; 577 578 if (arm_pcache_unified) { 579 aprint_normal("%s: %dKB/%dB %d-way %s unified cache\n", 580 dv->dv_xname, arm_pdcache_size / 1024, 581 arm_pdcache_line_size, arm_pdcache_ways, 582 wtnames[arm_pcache_type]); 583 } else { 584 aprint_normal("%s: %dKB/%dB %d-way Instruction cache\n", 585 dv->dv_xname, arm_picache_size / 1024, 586 arm_picache_line_size, arm_picache_ways); 587 aprint_normal("%s: %dKB/%dB %d-way %s Data cache\n", 588 dv->dv_xname, arm_pdcache_size / 1024, 589 arm_pdcache_line_size, arm_pdcache_ways, 590 wtnames[arm_pcache_type]); 591 } 592 593 skip_pcache: 594 595 switch (cpu_class) { 596 #ifdef CPU_ARM2 597 case CPU_CLASS_ARM2: 598 #endif 599 #ifdef CPU_ARM250 600 case CPU_CLASS_ARM2AS: 601 #endif 602 #ifdef CPU_ARM3 603 case CPU_CLASS_ARM3: 604 #endif 605 #ifdef CPU_ARM6 606 case CPU_CLASS_ARM6: 607 #endif 608 #ifdef CPU_ARM7 609 case CPU_CLASS_ARM7: 610 #endif 611 #ifdef CPU_ARM7TDMI 612 case CPU_CLASS_ARM7TDMI: 613 #endif 614 #ifdef CPU_ARM8 615 case CPU_CLASS_ARM8: 616 #endif 617 #ifdef CPU_ARM9 618 case CPU_CLASS_ARM9TDMI: 619 #endif 620 #if defined(CPU_ARM9E) || defined(CPU_SHEEVA) 621 case CPU_CLASS_ARM9ES: 622 case CPU_CLASS_ARM9EJS: 623 #endif 624 #ifdef CPU_ARM10 625 case CPU_CLASS_ARM10E: 626 case CPU_CLASS_ARM10EJ: 627 #endif 628 #if defined(CPU_SA110) || defined(CPU_SA1100) || \ 629 defined(CPU_SA1110) || defined(CPU_IXP12X0) 630 case CPU_CLASS_SA1: 631 #endif 632 #if defined(CPU_XSCALE_80200) || defined(CPU_XSCALE_80321) || \ 633 defined(__CPU_XSCALE_PXA2XX) || defined(CPU_XSCALE_IXP425) 634 case CPU_CLASS_XSCALE: 635 #endif 636 #if defined(CPU_ARM11) 637 case CPU_CLASS_ARM11J: 638 #endif 639 #if defined(CPU_CORTEX) 640 case CPU_CLASS_CORTEX: 641 #endif 642 #if defined(CPU_FA526) 643 case CPU_CLASS_ARMV4: 644 #endif 645 break; 646 default: 647 if (cpu_classes[cpu_class].class_option == NULL) 648 aprint_error("%s: %s does not fully support this CPU." 649 "\n", dv->dv_xname, ostype); 650 else { 651 aprint_error("%s: This kernel does not fully support " 652 "this CPU.\n", dv->dv_xname); 653 aprint_normal("%s: Recompile with \"options %s\" to " 654 "correct this.\n", dv->dv_xname, 655 cpu_classes[cpu_class].class_option); 656 } 657 break; 658 } 659 660 } 661 662 /* End of cpu.c */ 663
Indexes created Sat Sep 27 14:09:57 GMT 2025