i386.c revision 1.20
1 /* $NetBSD: i386.c,v 1.20 2009/10/02 13:54:01 jmcneill Exp $ */ 2 3 /*- 4 * Copyright (c) 1999, 2000, 2001, 2006, 2007, 2008 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Frank van der Linden, and by Jason R. Thorpe. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /*- 33 * Copyright (c)2008 YAMAMOTO Takashi, 34 * All rights reserved. 35 * 36 * Redistribution and use in source and binary forms, with or without 37 * modification, are permitted provided that the following conditions 38 * are met: 39 * 1. Redistributions of source code must retain the above copyright 40 * notice, this list of conditions and the following disclaimer. 41 * 2. Redistributions in binary form must reproduce the above copyright 42 * notice, this list of conditions and the following disclaimer in the 43 * documentation and/or other materials provided with the distribution. 44 * 45 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 46 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 47 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 48 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 49 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 50 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 51 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 52 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 53 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 54 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 55 * SUCH DAMAGE. 56 */ 57 58 #include <sys/cdefs.h> 59 #ifndef lint 60 __RCSID("$NetBSD: i386.c,v 1.20 2009/10/02 13:54:01 jmcneill Exp $"); 61 #endif /* not lint */ 62 63 #include <sys/types.h> 64 #include <sys/param.h> 65 #include <sys/bitops.h> 66 #include <sys/sysctl.h> 67 68 #include <string.h> 69 #include <stdio.h> 70 #include <stdlib.h> 71 #include <err.h> 72 #include <assert.h> 73 #include <math.h> 74 #include <util.h> 75 76 #include <machine/specialreg.h> 77 #include <machine/cpu.h> 78 79 #include <x86/cpuvar.h> 80 #include <x86/cputypes.h> 81 #include <x86/cacheinfo.h> 82 83 #include "../cpuctl.h" 84 85 /* Size of buffer for printing humanized numbers */ 86 #define HUMAN_BUFSIZE sizeof("999KB") 87 88 #define x86_cpuid(a,b) x86_cpuid2((a),0,(b)) 89 90 void x86_cpuid2(uint32_t, uint32_t, uint32_t *); 91 void x86_identify(void); 92 93 struct cpu_info { 94 const char *ci_dev; 95 int32_t ci_cpuid_level; 96 uint32_t ci_signature; /* X86 cpuid type */ 97 uint32_t ci_feat_val[5]; /* X86 CPUID feature bits 98 * [0] basic features %edx 99 * [1] basic features %ecx 100 * [2] extended features %edx 101 * [3] extended features %ecx 102 * [4] VIA padlock features 103 */ 104 uint32_t ci_cpu_class; /* CPU class */ 105 uint32_t ci_brand_id; /* Intel brand id */ 106 uint32_t ci_vendor[4]; /* vendor string */ 107 uint32_t ci_cpu_serial[3]; /* PIII serial number */ 108 uint64_t ci_tsc_freq; /* cpu cycles/second */ 109 uint8_t ci_packageid; 110 uint8_t ci_coreid; 111 uint8_t ci_smtid; 112 uint32_t ci_initapicid; 113 struct x86_cache_info ci_cinfo[CAI_COUNT]; 114 void (*ci_info)(struct cpu_info *); 115 }; 116 117 struct cpu_nocpuid_nameclass { 118 int cpu_vendor; 119 const char *cpu_vendorname; 120 const char *cpu_name; 121 int cpu_class; 122 void (*cpu_setup)(struct cpu_info *); 123 void (*cpu_cacheinfo)(struct cpu_info *); 124 void (*cpu_info)(struct cpu_info *); 125 }; 126 127 struct cpu_extend_nameclass { 128 int ext_model; 129 const char *cpu_models[CPU_MAXMODEL+1]; 130 }; 131 132 struct cpu_cpuid_nameclass { 133 const char *cpu_id; 134 int cpu_vendor; 135 const char *cpu_vendorname; 136 struct cpu_cpuid_family { 137 int cpu_class; 138 const char *cpu_models[CPU_MAXMODEL+2]; 139 void (*cpu_setup)(struct cpu_info *); 140 void (*cpu_probe)(struct cpu_info *); 141 void (*cpu_info)(struct cpu_info *); 142 struct cpu_extend_nameclass *cpu_extended_names; 143 } cpu_family[CPU_MAXFAMILY - CPU_MINFAMILY + 1]; 144 }; 145 146 static const struct x86_cache_info intel_cpuid_cache_info[] = INTEL_CACHE_INFO; 147 148 /* 149 * Map Brand ID from cpuid instruction to brand name. 150 * Source: Intel Processor Identification and the CPUID Instruction, AP-485 151 */ 152 static const char * const i386_intel_brand[] = { 153 "", /* Unsupported */ 154 "Celeron", /* Intel (R) Celeron (TM) processor */ 155 "Pentium III", /* Intel (R) Pentium (R) III processor */ 156 "Pentium III Xeon", /* Intel (R) Pentium (R) III Xeon (TM) processor */ 157 "Pentium III", /* Intel (R) Pentium (R) III processor */ 158 "", /* Reserved */ 159 "Mobile Pentium III", /* Mobile Intel (R) Pentium (R) III processor-M */ 160 "Mobile Celeron", /* Mobile Intel (R) Celeron (R) processor */ 161 "Pentium 4", /* Intel (R) Pentium (R) 4 processor */ 162 "Pentium 4", /* Intel (R) Pentium (R) 4 processor */ 163 "Celeron", /* Intel (R) Celeron (TM) processor */ 164 "Xeon", /* Intel (R) Xeon (TM) processor */ 165 "Xeon MP", /* Intel (R) Xeon (TM) processor MP */ 166 "", /* Reserved */ 167 "Mobile Pentium 4", /* Mobile Intel (R) Pentium (R) 4 processor-M */ 168 "Mobile Celeron", /* Mobile Intel (R) Celeron (R) processor */ 169 }; 170 171 /* 172 * AMD processors don't have Brand IDs, so we need these names for probe. 173 */ 174 static const char * const amd_brand[] = { 175 "", 176 "Duron", /* AMD Duron(tm) */ 177 "MP", /* AMD Athlon(tm) MP */ 178 "XP", /* AMD Athlon(tm) XP */ 179 "4" /* AMD Athlon(tm) 4 */ 180 }; 181 182 static int cpu_vendor; 183 static char cpu_brand_string[49]; 184 static char amd_brand_name[48]; 185 186 static void via_cpu_probe(struct cpu_info *); 187 static void amd_family6_probe(struct cpu_info *); 188 static void intel_family_new_probe(struct cpu_info *); 189 static const char *intel_family6_name(struct cpu_info *); 190 static const char *amd_amd64_name(struct cpu_info *); 191 static void amd_family5_setup(struct cpu_info *); 192 static void transmeta_cpu_info(struct cpu_info *); 193 static const char *print_cache_config(struct cpu_info *, int, const char *, 194 const char *); 195 static const char *print_tlb_config(struct cpu_info *, int, const char *, 196 const char *); 197 static void amd_cpu_cacheinfo(struct cpu_info *); 198 static void via_cpu_cacheinfo(struct cpu_info *); 199 static void x86_print_cacheinfo(struct cpu_info *); 200 static const struct x86_cache_info *cache_info_lookup( 201 const struct x86_cache_info *, uint8_t); 202 static void cyrix6x86_cpu_setup(struct cpu_info *); 203 static void winchip_cpu_setup(struct cpu_info *); 204 static void amd_family5_setup(struct cpu_info *); 205 static void powernow_probe(struct cpu_info *); 206 207 /* 208 * Info for CTL_HW 209 */ 210 static char cpu_model[120]; 211 212 /* 213 * Note: these are just the ones that may not have a cpuid instruction. 214 * We deal with the rest in a different way. 215 */ 216 const struct cpu_nocpuid_nameclass i386_nocpuid_cpus[] = { 217 { CPUVENDOR_INTEL, "Intel", "386SX", CPUCLASS_386, 218 NULL, NULL, NULL }, /* CPU_386SX */ 219 { CPUVENDOR_INTEL, "Intel", "386DX", CPUCLASS_386, 220 NULL, NULL, NULL }, /* CPU_386 */ 221 { CPUVENDOR_INTEL, "Intel", "486SX", CPUCLASS_486, 222 NULL, NULL, NULL }, /* CPU_486SX */ 223 { CPUVENDOR_INTEL, "Intel", "486DX", CPUCLASS_486, 224 NULL, NULL, NULL }, /* CPU_486 */ 225 { CPUVENDOR_CYRIX, "Cyrix", "486DLC", CPUCLASS_486, 226 NULL, NULL, NULL }, /* CPU_486DLC */ 227 { CPUVENDOR_CYRIX, "Cyrix", "6x86", CPUCLASS_486, 228 NULL, NULL, NULL }, /* CPU_6x86 */ 229 { CPUVENDOR_NEXGEN,"NexGen","586", CPUCLASS_386, 230 NULL, NULL, NULL }, /* CPU_NX586 */ 231 }; 232 233 const char *classnames[] = { 234 "386", 235 "486", 236 "586", 237 "686" 238 }; 239 240 const char *modifiers[] = { 241 "", 242 "OverDrive", 243 "Dual", 244 "" 245 }; 246 247 struct cpu_extend_nameclass intel_family6_ext_models[] = { 248 { /* Extended models 1x */ 249 0x01, { NULL, NULL, 250 NULL, NULL, 251 NULL, "EP80579 Integrated Processor", 252 "Celeron (45nm)", "Core 2 Extreme", 253 NULL, NULL, 254 "Core i7 (Nehalem)", NULL, 255 "Atom", "XeonMP (Nehalem)", 256 NULL, NULL} }, 257 { /* End of list */ 258 0x00, { NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 259 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL} } 260 }; 261 262 const struct cpu_cpuid_nameclass i386_cpuid_cpus[] = { 263 { 264 "GenuineIntel", 265 CPUVENDOR_INTEL, 266 "Intel", 267 /* Family 4 */ 268 { { 269 CPUCLASS_486, 270 { 271 "486DX", "486DX", "486SX", "486DX2", "486SL", 272 "486SX2", 0, "486DX2 W/B Enhanced", 273 "486DX4", 0, 0, 0, 0, 0, 0, 0, 274 "486" /* Default */ 275 }, 276 NULL, 277 NULL, 278 NULL, 279 NULL, 280 }, 281 /* Family 5 */ 282 { 283 CPUCLASS_586, 284 { 285 "Pentium (P5 A-step)", "Pentium (P5)", 286 "Pentium (P54C)", "Pentium (P24T)", 287 "Pentium/MMX", "Pentium", 0, 288 "Pentium (P54C)", "Pentium/MMX (Tillamook)", 289 0, 0, 0, 0, 0, 0, 0, 290 "Pentium" /* Default */ 291 }, 292 NULL, 293 NULL, 294 NULL, 295 NULL, 296 }, 297 /* Family 6 */ 298 { 299 CPUCLASS_686, 300 { 301 "Pentium Pro (A-step)", "Pentium Pro", 0, 302 "Pentium II (Klamath)", "Pentium Pro", 303 "Pentium II/Celeron (Deschutes)", 304 "Celeron (Mendocino)", 305 "Pentium III (Katmai)", 306 "Pentium III (Coppermine)", 307 "Pentium M (Banias)", 308 "Pentium III Xeon (Cascades)", 309 "Pentium III (Tualatin)", 0, 310 "Pentium M (Dothan)", 311 "Pentium M (Yonah)", 312 "Core 2 (Merom)", 313 "Pentium Pro, II or III" /* Default */ 314 }, 315 NULL, 316 intel_family_new_probe, 317 NULL, 318 &intel_family6_ext_models[0], 319 }, 320 /* Family > 6 */ 321 { 322 CPUCLASS_686, 323 { 324 0, 0, 0, 0, 0, 0, 0, 0, 325 0, 0, 0, 0, 0, 0, 0, 0, 326 "Pentium 4" /* Default */ 327 }, 328 NULL, 329 intel_family_new_probe, 330 NULL, 331 NULL, 332 } } 333 }, 334 { 335 "AuthenticAMD", 336 CPUVENDOR_AMD, 337 "AMD", 338 /* Family 4 */ 339 { { 340 CPUCLASS_486, 341 { 342 0, 0, 0, "Am486DX2 W/T", 343 0, 0, 0, "Am486DX2 W/B", 344 "Am486DX4 W/T or Am5x86 W/T 150", 345 "Am486DX4 W/B or Am5x86 W/B 150", 0, 0, 346 0, 0, "Am5x86 W/T 133/160", 347 "Am5x86 W/B 133/160", 348 "Am486 or Am5x86" /* Default */ 349 }, 350 NULL, 351 NULL, 352 NULL, 353 NULL, 354 }, 355 /* Family 5 */ 356 { 357 CPUCLASS_586, 358 { 359 "K5", "K5", "K5", "K5", 0, 0, "K6", 360 "K6", "K6-2", "K6-III", "Geode LX", 0, 0, 361 "K6-2+/III+", 0, 0, 362 "K5 or K6" /* Default */ 363 }, 364 amd_family5_setup, 365 NULL, 366 amd_cpu_cacheinfo, 367 NULL, 368 }, 369 /* Family 6 */ 370 { 371 CPUCLASS_686, 372 { 373 0, "Athlon Model 1", "Athlon Model 2", 374 "Duron", "Athlon Model 4 (Thunderbird)", 375 0, "Athlon", "Duron", "Athlon", 0, 376 "Athlon", 0, 0, 0, 0, 0, 377 "K7 (Athlon)" /* Default */ 378 }, 379 NULL, 380 amd_family6_probe, 381 amd_cpu_cacheinfo, 382 NULL, 383 }, 384 /* Family > 6 */ 385 { 386 CPUCLASS_686, 387 { 388 0, 0, 0, 0, 0, 0, 0, 0, 389 0, 0, 0, 0, 0, 0, 0, 0, 390 "Unknown K8 (Athlon)" /* Default */ 391 }, 392 NULL, 393 amd_family6_probe, 394 amd_cpu_cacheinfo, 395 NULL, 396 } } 397 }, 398 { 399 "CyrixInstead", 400 CPUVENDOR_CYRIX, 401 "Cyrix", 402 /* Family 4 */ 403 { { 404 CPUCLASS_486, 405 { 406 0, 0, 0, 407 "MediaGX", 408 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 409 "486" /* Default */ 410 }, 411 cyrix6x86_cpu_setup, /* XXX ?? */ 412 NULL, 413 NULL, 414 NULL, 415 }, 416 /* Family 5 */ 417 { 418 CPUCLASS_586, 419 { 420 0, 0, "6x86", 0, 421 "MMX-enhanced MediaGX (GXm)", /* or Geode? */ 422 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 423 "6x86" /* Default */ 424 }, 425 cyrix6x86_cpu_setup, 426 NULL, 427 NULL, 428 NULL, 429 }, 430 /* Family 6 */ 431 { 432 CPUCLASS_686, 433 { 434 "6x86MX", 0, 0, 0, 0, 0, 0, 0, 435 0, 0, 0, 0, 0, 0, 0, 0, 436 "6x86MX" /* Default */ 437 }, 438 cyrix6x86_cpu_setup, 439 NULL, 440 NULL, 441 NULL, 442 }, 443 /* Family > 6 */ 444 { 445 CPUCLASS_686, 446 { 447 0, 0, 0, 0, 0, 0, 0, 0, 448 0, 0, 0, 0, 0, 0, 0, 0, 449 "Unknown 6x86MX" /* Default */ 450 }, 451 NULL, 452 NULL, 453 NULL, 454 NULL, 455 } } 456 }, 457 { /* MediaGX is now owned by National Semiconductor */ 458 "Geode by NSC", 459 CPUVENDOR_CYRIX, /* XXX */ 460 "National Semiconductor", 461 /* Family 4, NSC never had any of these */ 462 { { 463 CPUCLASS_486, 464 { 465 0, 0, 0, 0, 0, 0, 0, 0, 466 0, 0, 0, 0, 0, 0, 0, 0, 467 "486 compatible" /* Default */ 468 }, 469 NULL, 470 NULL, 471 NULL, 472 NULL, 473 }, 474 /* Family 5: Geode family, formerly MediaGX */ 475 { 476 CPUCLASS_586, 477 { 478 0, 0, 0, 0, 479 "Geode GX1", 480 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 481 "Geode" /* Default */ 482 }, 483 cyrix6x86_cpu_setup, 484 NULL, 485 amd_cpu_cacheinfo, 486 NULL, 487 }, 488 /* Family 6, not yet available from NSC */ 489 { 490 CPUCLASS_686, 491 { 492 0, 0, 0, 0, 0, 0, 0, 0, 493 0, 0, 0, 0, 0, 0, 0, 0, 494 "Pentium Pro compatible" /* Default */ 495 }, 496 NULL, 497 NULL, 498 NULL, 499 NULL, 500 }, 501 /* Family > 6, not yet available from NSC */ 502 { 503 CPUCLASS_686, 504 { 505 0, 0, 0, 0, 0, 0, 0, 0, 506 0, 0, 0, 0, 0, 0, 0, 0, 507 "Pentium Pro compatible" /* Default */ 508 }, 509 NULL, 510 NULL, 511 NULL, 512 NULL, 513 } } 514 }, 515 { 516 "CentaurHauls", 517 CPUVENDOR_IDT, 518 "IDT", 519 /* Family 4, IDT never had any of these */ 520 { { 521 CPUCLASS_486, 522 { 523 0, 0, 0, 0, 0, 0, 0, 0, 524 0, 0, 0, 0, 0, 0, 0, 0, 525 "486 compatible" /* Default */ 526 }, 527 NULL, 528 NULL, 529 NULL, 530 NULL, 531 }, 532 /* Family 5 */ 533 { 534 CPUCLASS_586, 535 { 536 0, 0, 0, 0, "WinChip C6", 0, 0, 0, 537 "WinChip 2", "WinChip 3", 0, 0, 0, 0, 0, 0, 538 "WinChip" /* Default */ 539 }, 540 winchip_cpu_setup, 541 NULL, 542 NULL, 543 NULL, 544 }, 545 /* Family 6, VIA acquired IDT Centaur design subsidiary */ 546 { 547 CPUCLASS_686, 548 { 549 0, 0, 0, 0, 0, 0, "C3 Samuel", 550 "C3 Samuel 2/Ezra", "C3 Ezra-T", 551 "C3 Nehemiah", "C7 Esther", 0, 0, "C7 Esther", 552 0, "VIA Nano", 553 "Unknown VIA/IDT" /* Default */ 554 }, 555 NULL, 556 via_cpu_probe, 557 via_cpu_cacheinfo, 558 NULL, 559 }, 560 /* Family > 6, not yet available from VIA */ 561 { 562 CPUCLASS_686, 563 { 564 0, 0, 0, 0, 0, 0, 0, 0, 565 0, 0, 0, 0, 0, 0, 0, 0, 566 "Pentium Pro compatible" /* Default */ 567 }, 568 NULL, 569 NULL, 570 NULL, 571 NULL, 572 } } 573 }, 574 { 575 "GenuineTMx86", 576 CPUVENDOR_TRANSMETA, 577 "Transmeta", 578 /* Family 4, Transmeta never had any of these */ 579 { { 580 CPUCLASS_486, 581 { 582 0, 0, 0, 0, 0, 0, 0, 0, 583 0, 0, 0, 0, 0, 0, 0, 0, 584 "486 compatible" /* Default */ 585 }, 586 NULL, 587 NULL, 588 NULL, 589 NULL, 590 }, 591 /* Family 5 */ 592 { 593 CPUCLASS_586, 594 { 595 0, 0, 0, 0, 0, 0, 0, 0, 596 0, 0, 0, 0, 0, 0, 0, 0, 597 "Crusoe" /* Default */ 598 }, 599 NULL, 600 NULL, 601 transmeta_cpu_info, 602 NULL, 603 }, 604 /* Family 6, not yet available from Transmeta */ 605 { 606 CPUCLASS_686, 607 { 608 0, 0, 0, 0, 0, 0, 0, 0, 609 0, 0, 0, 0, 0, 0, 0, 0, 610 "Pentium Pro compatible" /* Default */ 611 }, 612 NULL, 613 NULL, 614 NULL, 615 NULL, 616 }, 617 /* Family > 6, not yet available from Transmeta */ 618 { 619 CPUCLASS_686, 620 { 621 0, 0, 0, 0, 0, 0, 0, 0, 622 0, 0, 0, 0, 0, 0, 0, 0, 623 "Pentium Pro compatible" /* Default */ 624 }, 625 NULL, 626 NULL, 627 NULL, 628 NULL, 629 } } 630 } 631 }; 632 633 /* 634 * disable the TSC such that we don't use the TSC in microtime(9) 635 * because some CPUs got the implementation wrong. 636 */ 637 static void 638 disable_tsc(struct cpu_info *ci) 639 { 640 if (ci->ci_feat_val[0] & CPUID_TSC) { 641 ci->ci_feat_val[0] &= ~CPUID_TSC; 642 aprint_error("WARNING: broken TSC disabled\n"); 643 } 644 } 645 646 static void 647 cyrix6x86_cpu_setup(struct cpu_info *ci) 648 { 649 650 /* 651 * Do not disable the TSC on the Geode GX, it's reported to 652 * work fine. 653 */ 654 if (ci->ci_signature != 0x552) 655 disable_tsc(ci); 656 } 657 658 void 659 winchip_cpu_setup(struct cpu_info *ci) 660 { 661 switch (CPUID2MODEL(ci->ci_signature)) { /* model */ 662 case 4: /* WinChip C6 */ 663 disable_tsc(ci); 664 } 665 } 666 667 668 static void 669 identifycpu_cpuids(struct cpu_info *ci) 670 { 671 const char *cpuname = ci->ci_dev; 672 u_int lp_max = 1; /* logical processors per package */ 673 u_int smt_max; /* smt per core */ 674 u_int core_max = 1; /* core per package */ 675 u_int smt_bits, core_bits; 676 uint32_t descs[4]; 677 678 aprint_verbose("%s: Initial APIC ID %u\n", cpuname, ci->ci_initapicid); 679 ci->ci_packageid = ci->ci_initapicid; 680 ci->ci_coreid = 0; 681 ci->ci_smtid = 0; 682 if (cpu_vendor != CPUVENDOR_INTEL) { 683 return; 684 } 685 686 /* 687 * 253668.pdf 7.10.2 688 */ 689 690 if ((ci->ci_feat_val[0] & CPUID_HTT) != 0) { 691 x86_cpuid(1, descs); 692 lp_max = (descs[1] >> 16) & 0xff; 693 } 694 x86_cpuid(0, descs); 695 if (descs[0] >= 4) { 696 x86_cpuid2(4, 0, descs); 697 core_max = (descs[0] >> 26) + 1; 698 } 699 assert(lp_max >= core_max); 700 smt_max = lp_max / core_max; 701 smt_bits = ilog2(smt_max - 1) + 1; 702 core_bits = ilog2(core_max - 1) + 1; 703 if (smt_bits + core_bits) { 704 ci->ci_packageid = ci->ci_initapicid >> (smt_bits + core_bits); 705 } 706 aprint_verbose("%s: Cluster/Package ID %u\n", cpuname, 707 ci->ci_packageid); 708 if (core_bits) { 709 u_int core_mask = __BITS(smt_bits, smt_bits + core_bits - 1); 710 711 ci->ci_coreid = 712 __SHIFTOUT(ci->ci_initapicid, core_mask); 713 aprint_verbose("%s: Core ID %u\n", cpuname, ci->ci_coreid); 714 } 715 if (smt_bits) { 716 u_int smt_mask = __BITS((int)0, (int)(smt_bits - 1)); 717 718 ci->ci_smtid = __SHIFTOUT(ci->ci_initapicid, smt_mask); 719 aprint_verbose("%s: SMT ID %u\n", cpuname, ci->ci_smtid); 720 } 721 } 722 723 static void 724 via_cpu_probe(struct cpu_info *ci) 725 { 726 u_int model = CPUID2MODEL(ci->ci_signature); 727 u_int stepping = CPUID2STEPPING(ci->ci_signature); 728 u_int descs[4]; 729 u_int lfunc; 730 731 /* 732 * Determine the largest extended function value. 733 */ 734 x86_cpuid(0x80000000, descs); 735 lfunc = descs[0]; 736 737 /* 738 * Determine the extended feature flags. 739 */ 740 if (lfunc >= 0x80000001) { 741 x86_cpuid(0x80000001, descs); 742 ci->ci_feat_val[2] |= descs[3]; 743 } 744 745 if (model < 0x9) 746 return; 747 748 /* Nehemiah or Esther */ 749 x86_cpuid(0xc0000000, descs); 750 lfunc = descs[0]; 751 if (lfunc < 0xc0000001) /* no ACE, no RNG */ 752 return; 753 754 x86_cpuid(0xc0000001, descs); 755 lfunc = descs[3]; 756 if (model > 0x9 || stepping >= 8) { /* ACE */ 757 if (lfunc & CPUID_VIA_HAS_ACE) { 758 ci->ci_feat_val[4] = lfunc; 759 } 760 } 761 } 762 763 static const char * 764 intel_family6_name(struct cpu_info *ci) 765 { 766 int model = CPUID2MODEL(ci->ci_signature); 767 const char *ret = NULL; 768 u_int l2cache = ci->ci_cinfo[CAI_L2CACHE].cai_totalsize; 769 770 if (model == 5) { 771 switch (l2cache) { 772 case 0: 773 case 128 * 1024: 774 ret = "Celeron (Covington)"; 775 break; 776 case 256 * 1024: 777 ret = "Mobile Pentium II (Dixon)"; 778 break; 779 case 512 * 1024: 780 ret = "Pentium II"; 781 break; 782 case 1 * 1024 * 1024: 783 case 2 * 1024 * 1024: 784 ret = "Pentium II Xeon"; 785 break; 786 } 787 } else if (model == 6) { 788 switch (l2cache) { 789 case 256 * 1024: 790 case 512 * 1024: 791 ret = "Mobile Pentium II"; 792 break; 793 } 794 } else if (model == 7) { 795 switch (l2cache) { 796 case 512 * 1024: 797 ret = "Pentium III"; 798 break; 799 case 1 * 1024 * 1024: 800 case 2 * 1024 * 1024: 801 ret = "Pentium III Xeon"; 802 break; 803 } 804 } else if (model >= 8) { 805 if (ci->ci_brand_id && ci->ci_brand_id < 0x10) { 806 switch (ci->ci_brand_id) { 807 case 0x3: 808 if (ci->ci_signature == 0x6B1) 809 ret = "Celeron"; 810 break; 811 case 0x8: 812 if (ci->ci_signature >= 0xF13) 813 ret = "genuine processor"; 814 break; 815 case 0xB: 816 if (ci->ci_signature >= 0xF13) 817 ret = "Xeon MP"; 818 break; 819 case 0xE: 820 if (ci->ci_signature < 0xF13) 821 ret = "Xeon"; 822 break; 823 } 824 if (ret == NULL) 825 ret = i386_intel_brand[ci->ci_brand_id]; 826 } 827 } 828 829 return ret; 830 } 831 832 /* 833 * Identify AMD64 CPU names from cpuid. 834 * 835 * Based on: 836 * "Revision Guide for AMD Athlon 64 and AMD Opteron Processors" 837 * http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/25759.pdf 838 * "Revision Guide for AMD NPT Family 0Fh Processors" 839 * http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/33610.pdf 840 * and other miscellaneous reports. 841 */ 842 static const char * 843 amd_amd64_name(struct cpu_info *ci) 844 { 845 int extfamily, extmodel, model; 846 const char *ret = NULL; 847 848 model = CPUID2MODEL(ci->ci_signature); 849 extfamily = CPUID2EXTFAMILY(ci->ci_signature); 850 extmodel = CPUID2EXTMODEL(ci->ci_signature); 851 852 switch (extfamily) { 853 case 0x00: 854 switch (model) { 855 case 0x1: 856 switch (extmodel) { 857 case 0x2: /* rev JH-E1/E6 */ 858 case 0x4: /* rev JH-F2 */ 859 ret = "Dual-Core Opteron"; 860 break; 861 } 862 break; 863 case 0x3: 864 switch (extmodel) { 865 case 0x2: /* rev JH-E6 (Toledo) */ 866 ret = "Dual-Core Opteron or Athlon 64 X2"; 867 break; 868 case 0x4: /* rev JH-F2 (Windsor) */ 869 ret = "Athlon 64 FX or Athlon 64 X2"; 870 break; 871 } 872 break; 873 case 0x4: 874 switch (extmodel) { 875 case 0x0: /* rev SH-B0/C0/CG (ClawHammer) */ 876 case 0x1: /* rev SH-D0 */ 877 ret = "Athlon 64"; 878 break; 879 case 0x2: /* rev SH-E5 (Lancaster?) */ 880 ret = "Mobile Athlon 64 or Turion 64"; 881 break; 882 } 883 break; 884 case 0x5: 885 switch (extmodel) { 886 case 0x0: /* rev SH-B0/B3/C0/CG (SledgeHammer?) */ 887 ret = "Opteron or Athlon 64 FX"; 888 break; 889 case 0x1: /* rev SH-D0 */ 890 case 0x2: /* rev SH-E4 */ 891 ret = "Opteron"; 892 break; 893 } 894 break; 895 case 0x7: 896 switch (extmodel) { 897 case 0x0: /* rev SH-CG (ClawHammer) */ 898 case 0x1: /* rev SH-D0 */ 899 ret = "Athlon 64"; 900 break; 901 case 0x2: /* rev DH-E4, SH-E4 */ 902 ret = "Athlon 64 or Athlon 64 FX or Opteron"; 903 break; 904 } 905 break; 906 case 0x8: 907 switch (extmodel) { 908 case 0x0: /* rev CH-CG */ 909 case 0x1: /* rev CH-D0 */ 910 ret = "Athlon 64 or Sempron"; 911 break; 912 case 0x4: /* rev BH-F2 */ 913 ret = "Turion 64 X2"; 914 break; 915 } 916 break; 917 case 0xb: 918 switch (extmodel) { 919 case 0x0: /* rev CH-CG */ 920 case 0x1: /* rev CH-D0 */ 921 ret = "Athlon 64"; 922 break; 923 case 0x2: /* rev BH-E4 (Manchester) */ 924 case 0x4: /* rev BH-F2 (Windsor) */ 925 ret = "Athlon 64 X2"; 926 break; 927 case 0x6: /* rev BH-G1 (Brisbane) */ 928 ret = "Athlon X2 or Athlon 64 X2"; 929 break; 930 } 931 break; 932 case 0xc: 933 switch (extmodel) { 934 case 0x0: /* rev DH-CG (Newcastle) */ 935 case 0x1: /* rev DH-D0 (Winchester) */ 936 case 0x2: /* rev DH-E3/E6 */ 937 ret = "Athlon 64 or Sempron"; 938 break; 939 } 940 break; 941 case 0xe: 942 switch (extmodel) { 943 case 0x0: /* rev DH-CG (Newcastle?) */ 944 ret = "Athlon 64 or Sempron"; 945 break; 946 } 947 break; 948 case 0xf: 949 switch (extmodel) { 950 case 0x0: /* rev DH-CG (Newcastle/Paris) */ 951 case 0x1: /* rev DH-D0 (Winchester/Victoria) */ 952 case 0x2: /* rev DH-E3/E6 (Venice/Palermo) */ 953 case 0x4: /* rev DH-F2 (Orleans/Manila) */ 954 case 0x5: /* rev DH-F2 (Orleans/Manila) */ 955 case 0x6: /* rev DH-G1 */ 956 ret = "Athlon 64 or Sempron"; 957 break; 958 } 959 break; 960 default: 961 ret = "Unknown AMD64 CPU"; 962 } 963 break; 964 case 0x01: 965 switch (model) { 966 case 0x02: 967 ret = "Family 10h"; 968 break; 969 default: 970 ret = "Unknown AMD64 CPU"; 971 break; 972 } 973 break; 974 } 975 976 return ret; 977 } 978 979 static void 980 cpu_probe_base_features(struct cpu_info *ci) 981 { 982 const struct x86_cache_info *cai; 983 u_int descs[4]; 984 int iterations, i, j; 985 uint8_t desc; 986 uint32_t miscbytes; 987 uint32_t brand[12]; 988 989 if (ci->ci_cpuid_level < 0) 990 return; 991 992 x86_cpuid(0, descs); 993 ci->ci_cpuid_level = descs[0]; 994 ci->ci_vendor[0] = descs[1]; 995 ci->ci_vendor[2] = descs[2]; 996 ci->ci_vendor[1] = descs[3]; 997 ci->ci_vendor[3] = 0; 998 999 x86_cpuid(0x80000000, brand); 1000 if (brand[0] >= 0x80000004) { 1001 x86_cpuid(0x80000002, brand); 1002 x86_cpuid(0x80000003, brand + 4); 1003 x86_cpuid(0x80000004, brand + 8); 1004 for (i = 0; i < 48; i++) 1005 if (((char *) brand)[i] != ' ') 1006 break; 1007 memcpy(cpu_brand_string, ((char *) brand) + i, 48 - i); 1008 } 1009 1010 if (ci->ci_cpuid_level < 1) 1011 return; 1012 1013 x86_cpuid(1, descs); 1014 ci->ci_signature = descs[0]; 1015 miscbytes = descs[1]; 1016 ci->ci_feat_val[1] = descs[2]; 1017 ci->ci_feat_val[0] = descs[3]; 1018 1019 /* Brand is low order 8 bits of ebx */ 1020 ci->ci_brand_id = miscbytes & 0xff; 1021 ci->ci_initapicid = (miscbytes >> 24) & 0xff; 1022 if (ci->ci_cpuid_level < 2) 1023 return; 1024 1025 /* 1026 * Parse the cache info from `cpuid', if we have it. 1027 * XXX This is kinda ugly, but hey, so is the architecture... 1028 */ 1029 1030 x86_cpuid(2, descs); 1031 1032 iterations = descs[0] & 0xff; 1033 while (iterations-- > 0) { 1034 for (i = 0; i < 4; i++) { 1035 if (descs[i] & 0x80000000) 1036 continue; 1037 for (j = 0; j < 4; j++) { 1038 if (i == 0 && j == 0) 1039 continue; 1040 desc = (descs[i] >> (j * 8)) & 0xff; 1041 if (desc == 0) 1042 continue; 1043 cai = cache_info_lookup(intel_cpuid_cache_info, 1044 desc); 1045 if (cai != NULL) 1046 ci->ci_cinfo[cai->cai_index] = *cai; 1047 } 1048 } 1049 x86_cpuid(2, descs); 1050 } 1051 1052 if (ci->ci_cpuid_level < 3) 1053 return; 1054 1055 /* 1056 * If the processor serial number misfeature is present and supported, 1057 * extract it here. 1058 */ 1059 if ((ci->ci_feat_val[0] & CPUID_PN) != 0) { 1060 ci->ci_cpu_serial[0] = ci->ci_signature; 1061 x86_cpuid(3, descs); 1062 ci->ci_cpu_serial[2] = descs[2]; 1063 ci->ci_cpu_serial[1] = descs[3]; 1064 } 1065 } 1066 1067 static void 1068 cpu_probe_features(struct cpu_info *ci) 1069 { 1070 const struct cpu_cpuid_nameclass *cpup = NULL; 1071 int i, xmax, family; 1072 1073 cpu_probe_base_features(ci); 1074 1075 if (ci->ci_cpuid_level < 1) 1076 return; 1077 1078 xmax = __arraycount(i386_cpuid_cpus); 1079 for (i = 0; i < xmax; i++) { 1080 if (!strncmp((char *)ci->ci_vendor, 1081 i386_cpuid_cpus[i].cpu_id, 12)) { 1082 cpup = &i386_cpuid_cpus[i]; 1083 break; 1084 } 1085 } 1086 1087 if (cpup == NULL) 1088 return; 1089 1090 family = (ci->ci_signature >> 8) & 0xf; 1091 1092 if (family > CPU_MAXFAMILY) { 1093 family = CPU_MAXFAMILY; 1094 } 1095 i = family - CPU_MINFAMILY; 1096 1097 if (cpup->cpu_family[i].cpu_probe == NULL) 1098 return; 1099 1100 (*cpup->cpu_family[i].cpu_probe)(ci); 1101 } 1102 1103 static void 1104 intel_family_new_probe(struct cpu_info *ci) 1105 { 1106 uint32_t descs[4]; 1107 1108 x86_cpuid(0x80000000, descs); 1109 1110 /* 1111 * Determine extended feature flags. 1112 */ 1113 if (descs[0] >= 0x80000001) { 1114 x86_cpuid(0x80000001, descs); 1115 ci->ci_feat_val[2] |= descs[3]; 1116 ci->ci_feat_val[3] |= descs[2]; 1117 } 1118 } 1119 1120 static void 1121 amd_family6_probe(struct cpu_info *ci) 1122 { 1123 uint32_t descs[4]; 1124 char *p; 1125 size_t i; 1126 1127 x86_cpuid(0x80000000, descs); 1128 1129 /* 1130 * Determine the extended feature flags. 1131 */ 1132 if (descs[0] >= 0x80000001) { 1133 x86_cpuid(0x80000001, descs); 1134 ci->ci_feat_val[2] |= descs[3]; /* %edx */ 1135 ci->ci_feat_val[3] = descs[2]; /* %ecx */ 1136 } 1137 1138 if (*cpu_brand_string == '\0') 1139 return; 1140 1141 for (i = 1; i < __arraycount(amd_brand); i++) 1142 if ((p = strstr(cpu_brand_string, amd_brand[i])) != NULL) { 1143 ci->ci_brand_id = i; 1144 strlcpy(amd_brand_name, p, sizeof(amd_brand_name)); 1145 break; 1146 } 1147 } 1148 1149 static void 1150 amd_family5_setup(struct cpu_info *ci) 1151 { 1152 1153 switch (CPUID2MODEL(ci->ci_signature)) { 1154 case 0: /* AMD-K5 Model 0 */ 1155 /* 1156 * According to the AMD Processor Recognition App Note, 1157 * the AMD-K5 Model 0 uses the wrong bit to indicate 1158 * support for global PTEs, instead using bit 9 (APIC) 1159 * rather than bit 13 (i.e. "0x200" vs. 0x2000". Oops!). 1160 */ 1161 if (ci->ci_feat_val[0] & CPUID_APIC) 1162 ci->ci_feat_val[0] = 1163 (ci->ci_feat_val[0] & ~CPUID_APIC) | CPUID_PGE; 1164 /* 1165 * XXX But pmap_pg_g is already initialized -- need to kick 1166 * XXX the pmap somehow. How does the MP branch do this? 1167 */ 1168 break; 1169 } 1170 } 1171 1172 static void 1173 tmx86_get_longrun_status(u_int *frequency, u_int *voltage, u_int *percentage) 1174 { 1175 u_int descs[4]; 1176 1177 x86_cpuid(0x80860007, descs); 1178 *frequency = descs[0]; 1179 *voltage = descs[1]; 1180 *percentage = descs[2]; 1181 } 1182 1183 static void 1184 transmeta_cpu_info(struct cpu_info *ci) 1185 { 1186 u_int descs[4], nreg; 1187 u_int frequency, voltage, percentage; 1188 1189 x86_cpuid(0x80860000, descs); 1190 nreg = descs[0]; 1191 if (nreg >= 0x80860001) { 1192 x86_cpuid(0x80860001, descs); 1193 aprint_verbose_dev(ci->ci_dev, "Processor revision %u.%u.%u.%u\n", 1194 (descs[1] >> 24) & 0xff, 1195 (descs[1] >> 16) & 0xff, 1196 (descs[1] >> 8) & 0xff, 1197 descs[1] & 0xff); 1198 } 1199 if (nreg >= 0x80860002) { 1200 x86_cpuid(0x80860002, descs); 1201 aprint_verbose_dev(ci->ci_dev, "Code Morphing Software Rev: %u.%u.%u-%u-%u\n", 1202 (descs[1] >> 24) & 0xff, 1203 (descs[1] >> 16) & 0xff, 1204 (descs[1] >> 8) & 0xff, 1205 descs[1] & 0xff, 1206 descs[2]); 1207 } 1208 if (nreg >= 0x80860006) { 1209 union { 1210 char text[65]; 1211 u_int descs[4][4]; 1212 } info; 1213 int i; 1214 1215 for (i=0; i<4; i++) { 1216 x86_cpuid(0x80860003 + i, info.descs[i]); 1217 } 1218 info.text[64] = '\0'; 1219 aprint_verbose_dev(ci->ci_dev, "%s\n", info.text); 1220 } 1221 1222 if (nreg >= 0x80860007) { 1223 tmx86_get_longrun_status(&frequency, 1224 &voltage, &percentage); 1225 aprint_verbose_dev(ci->ci_dev, "LongRun <%dMHz %dmV %d%%>\n", 1226 frequency, voltage, percentage); 1227 } 1228 } 1229 1230 void 1231 identifycpu(const char *cpuname) 1232 { 1233 const char *name = "", *modifier, *vendorname, *brand = ""; 1234 int class = CPUCLASS_386, i, xmax; 1235 int modif, family, model, ext_model; 1236 const struct cpu_extend_nameclass *modlist; 1237 const struct cpu_cpuid_nameclass *cpup = NULL; 1238 const struct cpu_cpuid_family *cpufam; 1239 const char *feature_str[5]; 1240 struct cpu_info *ci, cistore; 1241 extern int cpu; 1242 extern int cpu_info_level; 1243 size_t sz; 1244 char buf[512]; 1245 char *bp; 1246 1247 ci = &cistore; 1248 memset(ci, 0, sizeof(*ci)); 1249 ci->ci_dev = cpuname; 1250 1251 x86_identify(); 1252 ci->ci_cpuid_level = cpu_info_level; 1253 cpu_probe_features(ci); 1254 1255 if (ci->ci_cpuid_level == -1) { 1256 if ((size_t)cpu >= __arraycount(i386_nocpuid_cpus)) 1257 errx(1, "unknown cpu type %d", cpu); 1258 name = i386_nocpuid_cpus[cpu].cpu_name; 1259 cpu_vendor = i386_nocpuid_cpus[cpu].cpu_vendor; 1260 vendorname = i386_nocpuid_cpus[cpu].cpu_vendorname; 1261 class = i386_nocpuid_cpus[cpu].cpu_class; 1262 ci->ci_info = i386_nocpuid_cpus[cpu].cpu_info; 1263 modifier = ""; 1264 } else { 1265 xmax = __arraycount(i386_cpuid_cpus); 1266 modif = (ci->ci_signature >> 12) & 0x3; 1267 family = CPUID2FAMILY(ci->ci_signature); 1268 if (family < CPU_MINFAMILY) 1269 errx(1, "identifycpu: strange family value"); 1270 model = CPUID2MODEL(ci->ci_signature); 1271 ext_model = CPUID2EXTMODEL(ci->ci_signature); 1272 1273 for (i = 0; i < xmax; i++) { 1274 if (!strncmp((char *)ci->ci_vendor, 1275 i386_cpuid_cpus[i].cpu_id, 12)) { 1276 cpup = &i386_cpuid_cpus[i]; 1277 break; 1278 } 1279 } 1280 1281 if (cpup == NULL) { 1282 cpu_vendor = CPUVENDOR_UNKNOWN; 1283 if (ci->ci_vendor[0] != '\0') 1284 vendorname = (char *)&ci->ci_vendor[0]; 1285 else 1286 vendorname = "Unknown"; 1287 if (family >= CPU_MAXFAMILY) 1288 family = CPU_MINFAMILY; 1289 class = family - 3; 1290 modifier = ""; 1291 name = ""; 1292 ci->ci_info = NULL; 1293 } else { 1294 cpu_vendor = cpup->cpu_vendor; 1295 vendorname = cpup->cpu_vendorname; 1296 modifier = modifiers[modif]; 1297 if (family > CPU_MAXFAMILY) { 1298 family = CPU_MAXFAMILY; 1299 model = CPU_DEFMODEL; 1300 } else if (model > CPU_MAXMODEL) { 1301 model = CPU_DEFMODEL; 1302 ext_model = 0; 1303 } 1304 cpufam = &cpup->cpu_family[family - CPU_MINFAMILY]; 1305 if (cpufam->cpu_extended_names == NULL || 1306 ext_model == 0) 1307 name = cpufam->cpu_models[model]; 1308 else { 1309 /* 1310 * Scan list(s) of extended model names 1311 */ 1312 modlist = cpufam->cpu_extended_names; 1313 while (modlist->ext_model != 0) { 1314 if (modlist->ext_model == ext_model) { 1315 name = 1316 modlist->cpu_models[model]; 1317 break; 1318 } 1319 modlist++; 1320 } 1321 } 1322 if (name == NULL || *name == '\0') 1323 name = cpufam->cpu_models[CPU_DEFMODEL]; 1324 class = cpufam->cpu_class; 1325 ci->ci_info = cpufam->cpu_info; 1326 1327 if (cpu_vendor == CPUVENDOR_INTEL) { 1328 if (family == 6 && model >= 5) { 1329 const char *tmp; 1330 tmp = intel_family6_name(ci); 1331 if (tmp != NULL) 1332 name = tmp; 1333 } 1334 if (family == CPU_MAXFAMILY && 1335 ci->ci_brand_id < 1336 __arraycount(i386_intel_brand) && 1337 i386_intel_brand[ci->ci_brand_id]) 1338 name = 1339 i386_intel_brand[ci->ci_brand_id]; 1340 } 1341 1342 if (cpu_vendor == CPUVENDOR_AMD) { 1343 if (family == 6 && model >= 6) { 1344 if (ci->ci_brand_id == 1) 1345 /* 1346 * It's Duron. We override the 1347 * name, since it might have 1348 * been misidentified as Athlon. 1349 */ 1350 name = 1351 amd_brand[ci->ci_brand_id]; 1352 else 1353 brand = amd_brand_name; 1354 } 1355 if (CPUID2FAMILY(ci->ci_signature) == 0xf) { 1356 /* 1357 * Identify AMD64 CPU names. 1358 * Note family value is clipped by 1359 * CPU_MAXFAMILY. 1360 */ 1361 const char *tmp; 1362 tmp = amd_amd64_name(ci); 1363 if (tmp != NULL) 1364 name = tmp; 1365 } 1366 } 1367 1368 if (cpu_vendor == CPUVENDOR_IDT && family >= 6) 1369 vendorname = "VIA"; 1370 } 1371 } 1372 1373 ci->ci_cpu_class = class; 1374 1375 sz = sizeof(ci->ci_tsc_freq); 1376 (void)sysctlbyname("machdep.tsc_freq", &ci->ci_tsc_freq, &sz, NULL, 0); 1377 1378 snprintf(cpu_model, sizeof(cpu_model), "%s%s%s%s%s%s%s (%s-class)", 1379 vendorname, 1380 *modifier ? " " : "", modifier, 1381 *name ? " " : "", name, 1382 *brand ? " " : "", brand, 1383 classnames[class]); 1384 aprint_normal("%s: %s", cpuname, cpu_model); 1385 1386 if (ci->ci_tsc_freq != 0) 1387 aprint_normal(", %qd.%02qd MHz", 1388 (ci->ci_tsc_freq + 4999) / 1000000, 1389 ((ci->ci_tsc_freq + 4999) / 10000) % 100); 1390 if (ci->ci_signature != 0) 1391 aprint_normal(", id 0x%x", ci->ci_signature); 1392 aprint_normal("\n"); 1393 1394 if (ci->ci_info) 1395 (*ci->ci_info)(ci); 1396 1397 /* 1398 * display CPU feature flags 1399 */ 1400 1401 #define MAX_FEATURE_LEN 60 /* XXX Need to find a better way to set this */ 1402 1403 feature_str[0] = CPUID_FLAGS1; 1404 feature_str[1] = CPUID2_FLAGS1; 1405 feature_str[2] = CPUID_EXT_FLAGS; 1406 feature_str[3] = NULL; 1407 feature_str[4] = NULL; 1408 1409 switch (cpu_vendor) { 1410 case CPUVENDOR_AMD: 1411 feature_str[3] = CPUID_AMD_FLAGS4; 1412 break; 1413 case CPUVENDOR_INTEL: 1414 feature_str[2] = CPUID_INTEL_EXT_FLAGS; 1415 feature_str[3] = CPUID_INTEL_FLAGS4; 1416 break; 1417 case CPUVENDOR_CYRIX: 1418 feature_str[4] = CPUID_FLAGS_PADLOCK; 1419 /* FALLTHRU */ 1420 default: 1421 break; 1422 } 1423 1424 for (i = 0; i <= 4; i++) { 1425 if (ci->ci_feat_val[i] && feature_str[i] != NULL) { 1426 snprintb_m(buf, sizeof(buf), feature_str[i], 1427 ci->ci_feat_val[i], MAX_FEATURE_LEN); 1428 bp = buf; 1429 while (*bp != '\0') { 1430 aprint_verbose("%s: %sfeatures%c %s\n", 1431 cpuname, (i == 4)?"padlock ":"", 1432 (i == 4 || i == 0)?' ':'1' + i, bp); 1433 bp += strlen(bp) + 1; 1434 } 1435 } 1436 } 1437 1438 if (*cpu_brand_string != '\0') 1439 aprint_normal("%s: \"%s\"\n", cpuname, cpu_brand_string); 1440 1441 x86_print_cacheinfo(ci); 1442 1443 if (ci->ci_cpuid_level >= 3 && (ci->ci_feat_val[0] & CPUID_PN)) { 1444 aprint_verbose("%s: serial number %04X-%04X-%04X-%04X-%04X-%04X\n", 1445 cpuname, 1446 ci->ci_cpu_serial[0] / 65536, ci->ci_cpu_serial[0] % 65536, 1447 ci->ci_cpu_serial[1] / 65536, ci->ci_cpu_serial[1] % 65536, 1448 ci->ci_cpu_serial[2] / 65536, ci->ci_cpu_serial[2] % 65536); 1449 } 1450 1451 if (ci->ci_cpu_class == CPUCLASS_386) { 1452 errx(1, "NetBSD requires an 80486 or later processor"); 1453 } 1454 1455 if (cpu == CPU_486DLC) { 1456 #ifndef CYRIX_CACHE_WORKS 1457 aprint_error("WARNING: CYRIX 486DLC CACHE UNCHANGED.\n"); 1458 #else 1459 #ifndef CYRIX_CACHE_REALLY_WORKS 1460 aprint_error("WARNING: CYRIX 486DLC CACHE ENABLED IN HOLD-FLUSH MODE.\n"); 1461 #else 1462 aprint_error("WARNING: CYRIX 486DLC CACHE ENABLED.\n"); 1463 #endif 1464 #endif 1465 } 1466 1467 /* 1468 * Everything past this point requires a Pentium or later. 1469 */ 1470 if (ci->ci_cpuid_level < 0) 1471 return; 1472 1473 identifycpu_cpuids(ci); 1474 1475 #ifdef INTEL_CORETEMP 1476 if (cpu_vendor == CPUVENDOR_INTEL && ci->ci_cpuid_level >= 0x06) 1477 coretemp_register(ci); 1478 #endif 1479 1480 if (cpu_vendor == CPUVENDOR_AMD) { 1481 powernow_probe(ci); 1482 1483 if ((ci->ci_feat_val[3] & CPUID_SVM) != 0) { 1484 uint32_t data[4]; 1485 1486 x86_cpuid(0x8000000a, data); 1487 aprint_verbose("%s: SVM Rev. %d\n", cpuname, 1488 data[0] & 0xf); 1489 aprint_verbose("%s: SVM NASID %d\n", cpuname, data[1]); 1490 snprintb(buf, sizeof(buf), CPUID_AMD_SVM_FLAGS, 1491 data[3]); 1492 aprint_verbose("%s: SVM features %s\n", cpuname, buf); 1493 } 1494 } 1495 1496 #ifdef INTEL_ONDEMAND_CLOCKMOD 1497 clockmod_init(); 1498 #endif 1499 1500 aprint_normal_dev(ci->ci_dev, "family %02x model %02x " 1501 "extfamily %02x extmodel %02x\n", CPUID2FAMILY(ci->ci_signature), 1502 CPUID2MODEL(ci->ci_signature), CPUID2EXTFAMILY(ci->ci_signature), 1503 CPUID2EXTMODEL(ci->ci_signature)); 1504 } 1505 1506 static const char * 1507 print_cache_config(struct cpu_info *ci, int cache_tag, const char *name, 1508 const char *sep) 1509 { 1510 struct x86_cache_info *cai = &ci->ci_cinfo[cache_tag]; 1511 char human_num[HUMAN_BUFSIZE]; 1512 1513 if (cai->cai_totalsize == 0) 1514 return sep; 1515 1516 if (sep == NULL) 1517 aprint_verbose_dev(ci->ci_dev, ""); 1518 else 1519 aprint_verbose("%s", sep); 1520 if (name != NULL) 1521 aprint_verbose("%s ", name); 1522 1523 if (cai->cai_string != NULL) { 1524 aprint_verbose("%s ", cai->cai_string); 1525 } else { 1526 (void)humanize_number(human_num, sizeof(human_num), 1527 cai->cai_totalsize, "B", HN_AUTOSCALE, HN_NOSPACE); 1528 aprint_verbose("%s %dB/line ", human_num, cai->cai_linesize); 1529 } 1530 switch (cai->cai_associativity) { 1531 case 0: 1532 aprint_verbose("disabled"); 1533 break; 1534 case 1: 1535 aprint_verbose("direct-mapped"); 1536 break; 1537 case 0xff: 1538 aprint_verbose("fully associative"); 1539 break; 1540 default: 1541 aprint_verbose("%d-way", cai->cai_associativity); 1542 break; 1543 } 1544 return ", "; 1545 } 1546 1547 static const char * 1548 print_tlb_config(struct cpu_info *ci, int cache_tag, const char *name, 1549 const char *sep) 1550 { 1551 struct x86_cache_info *cai = &ci->ci_cinfo[cache_tag]; 1552 char human_num[HUMAN_BUFSIZE]; 1553 1554 if (cai->cai_totalsize == 0) 1555 return sep; 1556 1557 if (sep == NULL) 1558 aprint_verbose_dev(ci->ci_dev, ""); 1559 else 1560 aprint_verbose("%s", sep); 1561 if (name != NULL) 1562 aprint_verbose("%s ", name); 1563 1564 if (cai->cai_string != NULL) { 1565 aprint_verbose("%s", cai->cai_string); 1566 } else { 1567 (void)humanize_number(human_num, sizeof(human_num), 1568 cai->cai_linesize, "B", HN_AUTOSCALE, HN_NOSPACE); 1569 aprint_verbose("%d %s entries ", cai->cai_totalsize, 1570 human_num); 1571 switch (cai->cai_associativity) { 1572 case 0: 1573 aprint_verbose("disabled"); 1574 break; 1575 case 1: 1576 aprint_verbose("direct-mapped"); 1577 break; 1578 case 0xff: 1579 aprint_verbose("fully associative"); 1580 break; 1581 default: 1582 aprint_verbose("%d-way", cai->cai_associativity); 1583 break; 1584 } 1585 } 1586 return ", "; 1587 } 1588 1589 static const struct x86_cache_info * 1590 cache_info_lookup(const struct x86_cache_info *cai, uint8_t desc) 1591 { 1592 int i; 1593 1594 for (i = 0; cai[i].cai_desc != 0; i++) { 1595 if (cai[i].cai_desc == desc) 1596 return (&cai[i]); 1597 } 1598 1599 return (NULL); 1600 } 1601 1602 static const struct x86_cache_info amd_cpuid_l2cache_assoc_info[] = 1603 AMD_L2CACHE_INFO; 1604 1605 static const struct x86_cache_info amd_cpuid_l3cache_assoc_info[] = 1606 AMD_L3CACHE_INFO; 1607 1608 static void 1609 amd_cpu_cacheinfo(struct cpu_info *ci) 1610 { 1611 const struct x86_cache_info *cp; 1612 struct x86_cache_info *cai; 1613 int family, model; 1614 u_int descs[4]; 1615 u_int lfunc; 1616 1617 family = (ci->ci_signature >> 8) & 15; 1618 model = CPUID2MODEL(ci->ci_signature); 1619 1620 /* 1621 * K5 model 0 has none of this info. 1622 */ 1623 if (family == 5 && model == 0) 1624 return; 1625 1626 /* 1627 * Get extended values for K8 and up. 1628 */ 1629 if (family == 0xf) { 1630 family += CPUID2EXTFAMILY(ci->ci_signature); 1631 model += CPUID2EXTMODEL(ci->ci_signature); 1632 } 1633 1634 /* 1635 * Determine the largest extended function value. 1636 */ 1637 x86_cpuid(0x80000000, descs); 1638 lfunc = descs[0]; 1639 1640 /* 1641 * Determine L1 cache/TLB info. 1642 */ 1643 if (lfunc < 0x80000005) { 1644 /* No L1 cache info available. */ 1645 return; 1646 } 1647 1648 x86_cpuid(0x80000005, descs); 1649 1650 /* 1651 * K6-III and higher have large page TLBs. 1652 */ 1653 if ((family == 5 && model >= 9) || family >= 6) { 1654 cai = &ci->ci_cinfo[CAI_ITLB2]; 1655 cai->cai_totalsize = AMD_L1_EAX_ITLB_ENTRIES(descs[0]); 1656 cai->cai_associativity = AMD_L1_EAX_ITLB_ASSOC(descs[0]); 1657 cai->cai_linesize = (4 * 1024 * 1024); 1658 1659 cai = &ci->ci_cinfo[CAI_DTLB2]; 1660 cai->cai_totalsize = AMD_L1_EAX_DTLB_ENTRIES(descs[0]); 1661 cai->cai_associativity = AMD_L1_EAX_DTLB_ASSOC(descs[0]); 1662 cai->cai_linesize = (4 * 1024 * 1024); 1663 } 1664 1665 cai = &ci->ci_cinfo[CAI_ITLB]; 1666 cai->cai_totalsize = AMD_L1_EBX_ITLB_ENTRIES(descs[1]); 1667 cai->cai_associativity = AMD_L1_EBX_ITLB_ASSOC(descs[1]); 1668 cai->cai_linesize = (4 * 1024); 1669 1670 cai = &ci->ci_cinfo[CAI_DTLB]; 1671 cai->cai_totalsize = AMD_L1_EBX_DTLB_ENTRIES(descs[1]); 1672 cai->cai_associativity = AMD_L1_EBX_DTLB_ASSOC(descs[1]); 1673 cai->cai_linesize = (4 * 1024); 1674 1675 cai = &ci->ci_cinfo[CAI_DCACHE]; 1676 cai->cai_totalsize = AMD_L1_ECX_DC_SIZE(descs[2]); 1677 cai->cai_associativity = AMD_L1_ECX_DC_ASSOC(descs[2]); 1678 cai->cai_linesize = AMD_L1_EDX_IC_LS(descs[2]); 1679 1680 cai = &ci->ci_cinfo[CAI_ICACHE]; 1681 cai->cai_totalsize = AMD_L1_EDX_IC_SIZE(descs[3]); 1682 cai->cai_associativity = AMD_L1_EDX_IC_ASSOC(descs[3]); 1683 cai->cai_linesize = AMD_L1_EDX_IC_LS(descs[3]); 1684 1685 /* 1686 * Determine L2 cache/TLB info. 1687 */ 1688 if (lfunc < 0x80000006) { 1689 /* No L2 cache info available. */ 1690 return; 1691 } 1692 1693 x86_cpuid(0x80000006, descs); 1694 1695 cai = &ci->ci_cinfo[CAI_L2CACHE]; 1696 cai->cai_totalsize = AMD_L2_ECX_C_SIZE(descs[2]); 1697 cai->cai_associativity = AMD_L2_ECX_C_ASSOC(descs[2]); 1698 cai->cai_linesize = AMD_L2_ECX_C_LS(descs[2]); 1699 1700 cp = cache_info_lookup(amd_cpuid_l2cache_assoc_info, 1701 cai->cai_associativity); 1702 if (cp != NULL) 1703 cai->cai_associativity = cp->cai_associativity; 1704 else 1705 cai->cai_associativity = 0; /* XXX Unknown/reserved */ 1706 1707 /* 1708 * Determine L3 cache info on AMD Family 10h processors 1709 */ 1710 if (family == 0x10) { 1711 cai = &ci->ci_cinfo[CAI_L3CACHE]; 1712 cai->cai_totalsize = AMD_L3_EDX_C_SIZE(descs[3]); 1713 cai->cai_associativity = AMD_L3_EDX_C_ASSOC(descs[3]); 1714 cai->cai_linesize = AMD_L3_EDX_C_LS(descs[3]); 1715 1716 cp = cache_info_lookup(amd_cpuid_l3cache_assoc_info, 1717 cai->cai_associativity); 1718 if (cp != NULL) 1719 cai->cai_associativity = cp->cai_associativity; 1720 else 1721 cai->cai_associativity = 0; /* XXX Unkn/Rsvd */ 1722 } 1723 } 1724 1725 static void 1726 via_cpu_cacheinfo(struct cpu_info *ci) 1727 { 1728 struct x86_cache_info *cai; 1729 int family, model, stepping; 1730 u_int descs[4]; 1731 u_int lfunc; 1732 1733 family = (ci->ci_signature >> 8) & 15; 1734 model = CPUID2MODEL(ci->ci_signature); 1735 stepping = CPUID2STEPPING(ci->ci_signature); 1736 1737 /* 1738 * Determine the largest extended function value. 1739 */ 1740 x86_cpuid(0x80000000, descs); 1741 lfunc = descs[0]; 1742 1743 /* 1744 * Determine L1 cache/TLB info. 1745 */ 1746 if (lfunc < 0x80000005) { 1747 /* No L1 cache info available. */ 1748 return; 1749 } 1750 1751 x86_cpuid(0x80000005, descs); 1752 1753 cai = &ci->ci_cinfo[CAI_ITLB]; 1754 cai->cai_totalsize = VIA_L1_EBX_ITLB_ENTRIES(descs[1]); 1755 cai->cai_associativity = VIA_L1_EBX_ITLB_ASSOC(descs[1]); 1756 cai->cai_linesize = (4 * 1024); 1757 1758 cai = &ci->ci_cinfo[CAI_DTLB]; 1759 cai->cai_totalsize = VIA_L1_EBX_DTLB_ENTRIES(descs[1]); 1760 cai->cai_associativity = VIA_L1_EBX_DTLB_ASSOC(descs[1]); 1761 cai->cai_linesize = (4 * 1024); 1762 1763 cai = &ci->ci_cinfo[CAI_DCACHE]; 1764 cai->cai_totalsize = VIA_L1_ECX_DC_SIZE(descs[2]); 1765 cai->cai_associativity = VIA_L1_ECX_DC_ASSOC(descs[2]); 1766 cai->cai_linesize = VIA_L1_EDX_IC_LS(descs[2]); 1767 if (model == 9 && stepping == 8) { 1768 /* Erratum: stepping 8 reports 4 when it should be 2 */ 1769 cai->cai_associativity = 2; 1770 } 1771 1772 cai = &ci->ci_cinfo[CAI_ICACHE]; 1773 cai->cai_totalsize = VIA_L1_EDX_IC_SIZE(descs[3]); 1774 cai->cai_associativity = VIA_L1_EDX_IC_ASSOC(descs[3]); 1775 cai->cai_linesize = VIA_L1_EDX_IC_LS(descs[3]); 1776 if (model == 9 && stepping == 8) { 1777 /* Erratum: stepping 8 reports 4 when it should be 2 */ 1778 cai->cai_associativity = 2; 1779 } 1780 1781 /* 1782 * Determine L2 cache/TLB info. 1783 */ 1784 if (lfunc < 0x80000006) { 1785 /* No L2 cache info available. */ 1786 return; 1787 } 1788 1789 x86_cpuid(0x80000006, descs); 1790 1791 cai = &ci->ci_cinfo[CAI_L2CACHE]; 1792 if (model >= 9) { 1793 cai->cai_totalsize = VIA_L2N_ECX_C_SIZE(descs[2]); 1794 cai->cai_associativity = VIA_L2N_ECX_C_ASSOC(descs[2]); 1795 cai->cai_linesize = VIA_L2N_ECX_C_LS(descs[2]); 1796 } else { 1797 cai->cai_totalsize = VIA_L2_ECX_C_SIZE(descs[2]); 1798 cai->cai_associativity = VIA_L2_ECX_C_ASSOC(descs[2]); 1799 cai->cai_linesize = VIA_L2_ECX_C_LS(descs[2]); 1800 } 1801 } 1802 1803 static void 1804 x86_print_cacheinfo(struct cpu_info *ci) 1805 { 1806 const char *sep; 1807 1808 if (ci->ci_cinfo[CAI_ICACHE].cai_totalsize != 0 || 1809 ci->ci_cinfo[CAI_DCACHE].cai_totalsize != 0) { 1810 sep = print_cache_config(ci, CAI_ICACHE, "I-cache", NULL); 1811 sep = print_cache_config(ci, CAI_DCACHE, "D-cache", sep); 1812 if (sep != NULL) 1813 aprint_verbose("\n"); 1814 } 1815 if (ci->ci_cinfo[CAI_L2CACHE].cai_totalsize != 0) { 1816 sep = print_cache_config(ci, CAI_L2CACHE, "L2 cache", NULL); 1817 if (sep != NULL) 1818 aprint_verbose("\n"); 1819 } 1820 if (ci->ci_cinfo[CAI_ITLB].cai_totalsize != 0) { 1821 sep = print_tlb_config(ci, CAI_ITLB, "ITLB", NULL); 1822 sep = print_tlb_config(ci, CAI_ITLB2, NULL, sep); 1823 if (sep != NULL) 1824 aprint_verbose("\n"); 1825 } 1826 if (ci->ci_cinfo[CAI_DTLB].cai_totalsize != 0) { 1827 sep = print_tlb_config(ci, CAI_DTLB, "DTLB", NULL); 1828 sep = print_tlb_config(ci, CAI_DTLB2, NULL, sep); 1829 if (sep != NULL) 1830 aprint_verbose("\n"); 1831 } 1832 if (ci->ci_cinfo[CAI_L3CACHE].cai_totalsize != 0) { 1833 sep = print_cache_config(ci, CAI_L3CACHE, "L3 cache", NULL); 1834 if (sep != NULL) 1835 aprint_verbose("\n"); 1836 } 1837 } 1838 1839 static void 1840 powernow_probe(struct cpu_info *ci) 1841 { 1842 uint32_t regs[4]; 1843 char buf[256]; 1844 1845 x86_cpuid(0x80000000, regs); 1846 1847 /* We need CPUID(0x80000007) */ 1848 if (regs[0] < 0x80000007) 1849 return; 1850 x86_cpuid(0x80000007, regs); 1851 1852 snprintb(buf, sizeof(buf), CPUID_APM_FLAGS, regs[3]); 1853 aprint_normal_dev(ci->ci_dev, "AMD Power Management features: %s\n", 1854 buf); 1855 } 1856
Indexes created Fri Sep 26 20:09:58 GMT 2025