i386.c revision 1.148
1 /* $NetBSD: i386.c,v 1.148 2025/05/28 20:02:53 andvar 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 1.148 2025/05/28 20:02:53 andvar 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 #include <sys/ioctl.h> 68 #include <sys/cpuio.h> 69 70 #include <errno.h> 71 #include <string.h> 72 #include <stdio.h> 73 #include <stdlib.h> 74 #include <err.h> 75 #include <assert.h> 76 #include <math.h> 77 #include <util.h> 78 79 #include <machine/specialreg.h> 80 #include <machine/cpu.h> 81 82 #include <x86/cpuvar.h> 83 #include <x86/cputypes.h> 84 #include <x86/cpu_ucode.h> 85 86 #include "../cpuctl.h" 87 #include "cpuctl_i386.h" 88 89 /* Size of buffer for printing humanized numbers */ 90 #define HUMAN_BUFSIZE sizeof("999KB") 91 92 struct cpu_nocpuid_nameclass { 93 int cpu_vendor; 94 const char *cpu_vendorname; 95 const char *cpu_name; 96 int cpu_class; 97 void (*cpu_setup)(struct cpu_info *); 98 void (*cpu_cacheinfo)(struct cpu_info *); 99 void (*cpu_info)(struct cpu_info *); 100 }; 101 102 struct cpu_cpuid_nameclass { 103 const char *cpu_id; 104 int cpu_vendor; 105 const char *cpu_vendorname; 106 struct cpu_cpuid_family { 107 int cpu_class; 108 const char *cpu_models[256]; 109 const char *cpu_model_default; 110 void (*cpu_setup)(struct cpu_info *); 111 void (*cpu_probe)(struct cpu_info *); 112 void (*cpu_info)(struct cpu_info *); 113 } cpu_family[CPU_MAXFAMILY - CPU_MINFAMILY + 1]; 114 }; 115 116 static const struct x86_cache_info intel_cpuid_cache_info[] = INTEL_CACHE_INFO; 117 118 /* 119 * Map Brand ID from cpuid instruction to brand name. 120 * Source: Table 3-24, Mapping of Brand Indices; and Intel 64 and IA-32 121 * Processor Brand Strings, Chapter 3 in "Intel (R) 64 and IA-32 122 * Architectures Software Developer's Manual, Volume 2A". 123 */ 124 static const char * const i386_intel_brand[] = { 125 "", /* Unsupported */ 126 "Celeron", /* Intel (R) Celeron (TM) processor */ 127 "Pentium III", /* Intel (R) Pentium (R) III processor */ 128 "Pentium III Xeon", /* Intel (R) Pentium (R) III Xeon (TM) processor */ 129 "Pentium III", /* Intel (R) Pentium (R) III processor */ 130 "", /* 0x05: Reserved */ 131 "Mobile Pentium III",/* Mobile Intel (R) Pentium (R) III processor-M */ 132 "Mobile Celeron", /* Mobile Intel (R) Celeron (R) processor */ 133 "Pentium 4", /* Intel (R) Pentium (R) 4 processor */ 134 "Pentium 4", /* Intel (R) Pentium (R) 4 processor */ 135 "Celeron", /* Intel (R) Celeron (TM) processor */ 136 "Xeon", /* Intel (R) Xeon (TM) processor */ 137 "Xeon MP", /* Intel (R) Xeon (TM) processor MP */ 138 "", /* 0x0d: Reserved */ 139 "Mobile Pentium 4", /* Mobile Intel (R) Pentium (R) 4 processor-M */ 140 "Mobile Celeron", /* Mobile Intel (R) Celeron (R) processor */ 141 "", /* 0x10: Reserved */ 142 "Mobile Genuine", /* Mobile Genuine Intel (R) processor */ 143 "Celeron M", /* Intel (R) Celeron (R) M processor */ 144 "Mobile Celeron", /* Mobile Intel (R) Celeron (R) processor */ 145 "Celeron", /* Intel (R) Celeron (R) processor */ 146 "Mobile Genuine", /* Mobile Genuine Intel (R) processor */ 147 "Pentium M", /* Intel (R) Pentium (R) M processor */ 148 "Mobile Celeron", /* Mobile Intel (R) Celeron (R) processor */ 149 }; 150 151 /* 152 * AMD processors don't have Brand IDs, so we need these names for probe. 153 */ 154 static const char * const amd_brand[] = { 155 "", 156 "Duron", /* AMD Duron(tm) */ 157 "MP", /* AMD Athlon(tm) MP */ 158 "XP", /* AMD Athlon(tm) XP */ 159 "4" /* AMD Athlon(tm) 4 */ 160 }; 161 162 int cpu_vendor; 163 static char cpu_brand_string[49]; 164 static char amd_brand_name[48]; 165 static int use_pae, largepagesize; 166 167 /* Setup functions */ 168 static void disable_tsc(struct cpu_info *); 169 static void amd_family5_setup(struct cpu_info *); 170 static void cyrix6x86_cpu_setup(struct cpu_info *); 171 static void winchip_cpu_setup(struct cpu_info *); 172 /* Brand/Model name functions */ 173 static const char *intel_family6_name(struct cpu_info *); 174 static const char *amd_amd64_name(struct cpu_info *); 175 /* Probe functions */ 176 static void amd_family6_probe(struct cpu_info *); 177 static void powernow_probe(struct cpu_info *); 178 static void intel_family_new_probe(struct cpu_info *); 179 static void via_cpu_probe(struct cpu_info *); 180 /* (Cache) Info functions */ 181 static void intel_cpu_cacheinfo(struct cpu_info *); 182 static void amd_cpu_cacheinfo(struct cpu_info *); 183 static void via_cpu_cacheinfo(struct cpu_info *); 184 static void tmx86_get_longrun_status(u_int *, u_int *, u_int *); 185 static void transmeta_cpu_info(struct cpu_info *); 186 /* Common functions */ 187 static void cpu_probe_base_features(struct cpu_info *, const char *); 188 static void cpu_probe_hv_features(struct cpu_info *, const char *); 189 static void cpu_probe_features(struct cpu_info *); 190 static void print_bits(const char *, const char *, const char *, uint32_t); 191 static void identifycpu_cpuids(struct cpu_info *); 192 static const char *print_cache_config(struct cpu_info *, int, const char *, 193 const char *); 194 static const char *print_tlb_config(struct cpu_info *, int, const char *, 195 const char *); 196 static void x86_print_cache_and_tlb_info(struct cpu_info *); 197 198 /* 199 * Note: these are just the ones that may not have a cpuid instruction. 200 * We deal with the rest in a different way. 201 */ 202 const struct cpu_nocpuid_nameclass i386_nocpuid_cpus[] = { 203 { CPUVENDOR_INTEL, "Intel", "386SX", CPUCLASS_386, 204 NULL, NULL, NULL }, /* CPU_386SX */ 205 { CPUVENDOR_INTEL, "Intel", "386DX", CPUCLASS_386, 206 NULL, NULL, NULL }, /* CPU_386 */ 207 { CPUVENDOR_INTEL, "Intel", "486SX", CPUCLASS_486, 208 NULL, NULL, NULL }, /* CPU_486SX */ 209 { CPUVENDOR_INTEL, "Intel", "486DX", CPUCLASS_486, 210 NULL, NULL, NULL }, /* CPU_486 */ 211 { CPUVENDOR_CYRIX, "Cyrix", "486DLC", CPUCLASS_486, 212 NULL, NULL, NULL }, /* CPU_486DLC */ 213 { CPUVENDOR_CYRIX, "Cyrix", "6x86", CPUCLASS_486, 214 NULL, NULL, NULL }, /* CPU_6x86 */ 215 { CPUVENDOR_NEXGEN,"NexGen","586", CPUCLASS_386, 216 NULL, NULL, NULL }, /* CPU_NX586 */ 217 }; 218 219 const char *classnames[] = { 220 "386", 221 "486", 222 "586", 223 "686" 224 }; 225 226 const char *modifiers[] = { 227 "", 228 "OverDrive", 229 "Dual", 230 "" 231 }; 232 233 const struct cpu_cpuid_nameclass i386_cpuid_cpus[] = { 234 { 235 /* 236 * For Intel processors, check Chapter 35Model-specific 237 * registers (MSRS), in "Intel (R) 64 and IA-32 Architectures 238 * Software Developer's Manual, Volume 3C". 239 */ 240 "GenuineIntel", 241 CPUVENDOR_INTEL, 242 "Intel", 243 /* Family 4 */ 244 { { 245 CPUCLASS_486, 246 { 247 "486DX", "486DX", "486SX", "486DX2", "486SL", 248 "486SX2", 0, "486DX2 W/B Enhanced", 249 "486DX4", 0, 0, 0, 0, 0, 0, 0, 250 }, 251 "486", /* Default */ 252 NULL, 253 NULL, 254 intel_cpu_cacheinfo, 255 }, 256 /* Family 5 */ 257 { 258 CPUCLASS_586, 259 { 260 "Pentium (P5 A-step)", "Pentium (P5)", 261 "Pentium (P54C)", "Pentium (P24T)", 262 "Pentium/MMX", "Pentium", 0, 263 "Pentium (P54C)", "Pentium/MMX (Tillamook)", 264 "Quark X1000", 0, 0, 0, 0, 0, 0, 265 }, 266 "Pentium", /* Default */ 267 NULL, 268 NULL, 269 intel_cpu_cacheinfo, 270 }, 271 /* Family 6 */ 272 { 273 CPUCLASS_686, 274 { 275 [0x00] = "Pentium Pro (A-step)", 276 [0x01] = "Pentium Pro", 277 [0x03] = "Pentium II (Klamath)", 278 [0x04] = "Pentium Pro", 279 [0x05] = "Pentium II/Celeron (Deschutes)", 280 [0x06] = "Celeron (Mendocino)", 281 [0x07] = "Pentium III (Katmai)", 282 [0x08] = "Pentium III (Coppermine)", 283 [0x09] = "Pentium M (Banias)", 284 [0x0a] = "Pentium III Xeon (Cascades)", 285 [0x0b] = "Pentium III (Tualatin)", 286 [0x0d] = "Pentium M (Dothan)", 287 [0x0e] = "Pentium Core Duo, Core solo", 288 [0x0f] = "Xeon 30xx, 32xx, 51xx, 53xx, 73xx, " 289 "Core 2 Quad 6xxx, " 290 "Core 2 Extreme 6xxx, " 291 "Core 2 Duo 4xxx, 5xxx, 6xxx, 7xxx " 292 "and Pentium DC", 293 [0x15] = "EP80579 Integrated Processor", 294 [0x16] = "Celeron (45nm)", 295 [0x17] = "Xeon 31xx, 33xx, 52xx, 54xx, " 296 "Core 2 Quad 8xxx and 9xxx", 297 [0x1a] = "Core i7, Xeon 34xx, 35xx and 55xx " 298 "(Nehalem)", 299 [0x1c] = "45nm Atom Family", 300 [0x1d] = "XeonMP 74xx (Nehalem)", 301 [0x1e] = "Core i7 and i5", 302 [0x1f] = "Core i7 and i5", 303 [0x25] = "Xeon 36xx & 56xx, i7, i5 and i3", 304 [0x26] = "Atom Family", 305 [0x27] = "Atom Family", 306 [0x2a] = "Xeon E3-12xx, 2nd gen i7, i5, " 307 "i3 2xxx", 308 [0x2c] = "Xeon 36xx & 56xx, i7, i5 and i3", 309 [0x2d] = "Xeon E5 Sandy Bridge family, " 310 "Core i7-39xx Extreme", 311 [0x2e] = "Xeon 75xx & 65xx", 312 [0x2f] = "Xeon E7 family", 313 [0x35] = "Atom Family", 314 [0x36] = "Atom S1000", 315 [0x37] = "Atom E3000, Z3[67]00", 316 [0x3a] = "Xeon E3-1200v2 and 3rd gen core, " 317 "Ivy Bridge", 318 [0x3c] = "4th gen Core, Xeon E3-12xx v3 " 319 "(Haswell)", 320 [0x3d] = "Core M-5xxx, 5th gen Core (Broadwell)", 321 [0x3e] = "Xeon E5/E7 v2 (Ivy Bridge-E), " 322 "Core i7-49xx Extreme", 323 [0x3f] = "Xeon E5-4600/2600/1600 v3, Xeon E7 v3 (Haswell-E), " 324 "Core i7-59xx Extreme", 325 [0x45] = "4th gen Core, Xeon E3-12xx v3 " 326 "(Haswell)", 327 [0x46] = "4th gen Core, Xeon E3-12xx v3 " 328 "(Haswell)", 329 [0x47] = "5th gen Core, Xeon E3-1200 v4 (Broadwell)", 330 [0x4a] = "Atom Z3400", 331 [0x4c] = "Atom X[57]-Z8000 (Airmont)", 332 [0x4d] = "Atom C2000", 333 [0x4e] = "6th gen Core, Xeon E3-1[25]00 v5 (Skylake)", 334 [0x4f] = "Xeon E[57] v4 (Broadwell), Core i7-69xx Extreme", 335 [0x55] = "Xeon Scalable (Skylake, Cascade Lake, Copper Lake)", 336 [0x56] = "Xeon D-1500 (Broadwell)", 337 [0x57] = "Xeon Phi [357]200 (Knights Landing)", 338 [0x5a] = "Atom Z3500", 339 [0x5c] = "Atom (Goldmont)", 340 [0x5d] = "Atom X3-C3000 (Silvermont)", 341 [0x5e] = "6th gen Core, Xeon E3-1[25]00 v5 (Skylake)", 342 [0x5f] = "Atom (Goldmont, Denverton)", 343 [0x66] = "8th gen Core i3 (Cannon Lake)", 344 [0x6a] = "3rd gen Xeon Scalable (Ice Lake)", 345 [0x6c] = "3rd gen Xeon Scalable (Ice Lake)", 346 [0x7a] = "Atom (Goldmont Plus)", 347 [0x7d] = "10th gen Core (Ice Lake)", 348 [0x7e] = "10th gen Core (Ice Lake)", 349 [0x85] = "Xeon Phi 7215, 7285, 7295 (Knights Mill)", 350 [0x86] = "Atom (Tremont)", 351 [0x8c] = "11th gen Core (Tiger Lake)", 352 [0x8d] = "11th gen Core (Tiger Lake)", 353 [0x8e] = "7th or 8th gen Core (Kaby Lake, Coffee Lake) or Xeon E (Coffee Lake)", 354 [0x8f] = "4th gen Xeon Scalable (Sapphire Rapids)", 355 [0x96] = "Atom x6000E (Elkhart Lake)", 356 [0x97] = "12th gen Core (Alder Lake)", 357 [0x9a] = "12th gen Core (Alder Lake)", 358 [0x9c] = "Pentium Silver N6xxx, Celeron N45xx, Celeron N51xx (Jasper Lake)", 359 [0x9e] = "7th or 8th gen Core (Kaby Lake, Coffee Lake) or Xeon E (Coffee Lake)", 360 [0xa5] = "10th gen Core (Comet Lake)", 361 [0xa6] = "10th gen Core (Comet Lake)", 362 [0xa7] = "11th gen Core (Rocket Lake)", 363 [0xa8] = "11th gen Core (Rocket Lake)", 364 [0xaa] = "Core Ultra 7 (Meteor Lake)", 365 [0xb7] = "13th gen Core (Raptor Lake)", 366 [0xba] = "13th gen Core (Raptor Lake)", 367 [0xbe] = "Core i3-N3xx N[12]xx Nxx Atom x7xxxE (Alder Lake-N)", 368 [0xbf] = "13th gen Core (Raptor Lake)", 369 [0xcf] = "5th gen Xeon Scalable (Emerald Rapids)", 370 }, 371 "Pentium Pro, II or III", /* Default */ 372 NULL, 373 intel_family_new_probe, 374 intel_cpu_cacheinfo, 375 }, 376 /* Family > 6 */ 377 { 378 CPUCLASS_686, 379 { 380 0, 0, 0, 0, 0, 0, 0, 0, 381 0, 0, 0, 0, 0, 0, 0, 0, 382 }, 383 "Pentium 4", /* Default */ 384 NULL, 385 intel_family_new_probe, 386 intel_cpu_cacheinfo, 387 } } 388 }, 389 { 390 "AuthenticAMD", 391 CPUVENDOR_AMD, 392 "AMD", 393 /* Family 4 */ 394 { { 395 CPUCLASS_486, 396 { 397 0, 0, 0, "Am486DX2 W/T", 398 0, 0, 0, "Am486DX2 W/B", 399 "Am486DX4 W/T or Am5x86 W/T 150", 400 "Am486DX4 W/B or Am5x86 W/B 150", 0, 0, 401 0, 0, "Am5x86 W/T 133/160", 402 "Am5x86 W/B 133/160", 403 }, 404 "Am486 or Am5x86", /* Default */ 405 NULL, 406 NULL, 407 NULL, 408 }, 409 /* Family 5 */ 410 { 411 CPUCLASS_586, 412 { 413 "K5", "K5", "K5", "K5", 0, 0, "K6", 414 "K6", "K6-2", "K6-III", "Geode LX", 0, 0, 415 "K6-2+/III+", 0, 0, 416 }, 417 "K5 or K6", /* Default */ 418 amd_family5_setup, 419 NULL, 420 amd_cpu_cacheinfo, 421 }, 422 /* Family 6 */ 423 { 424 CPUCLASS_686, 425 { 426 0, "Athlon Model 1", "Athlon Model 2", 427 "Duron", "Athlon Model 4 (Thunderbird)", 428 0, "Athlon", "Duron", "Athlon", 0, 429 "Athlon", 0, 0, 0, 0, 0, 430 }, 431 "K7 (Athlon)", /* Default */ 432 NULL, 433 amd_family6_probe, 434 amd_cpu_cacheinfo, 435 }, 436 /* Family > 6 */ 437 { 438 CPUCLASS_686, 439 { 440 0, 0, 0, 0, 0, 0, 0, 0, 441 0, 0, 0, 0, 0, 0, 0, 0, 442 }, 443 "Unknown K8 (Athlon)", /* Default */ 444 NULL, 445 amd_family6_probe, 446 amd_cpu_cacheinfo, 447 } } 448 }, 449 { 450 "CyrixInstead", 451 CPUVENDOR_CYRIX, 452 "Cyrix", 453 /* Family 4 */ 454 { { 455 CPUCLASS_486, 456 { 457 0, 0, 0, 458 "MediaGX", 459 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 460 }, 461 "486", /* Default */ 462 cyrix6x86_cpu_setup, /* XXX ?? */ 463 NULL, 464 NULL, 465 }, 466 /* Family 5 */ 467 { 468 CPUCLASS_586, 469 { 470 0, 0, "6x86", 0, 471 "MMX-enhanced MediaGX (GXm)", /* or Geode? */ 472 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 473 }, 474 "6x86", /* Default */ 475 cyrix6x86_cpu_setup, 476 NULL, 477 NULL, 478 }, 479 /* Family 6 */ 480 { 481 CPUCLASS_686, 482 { 483 "6x86MX", 0, 0, 0, 0, 0, 0, 0, 484 0, 0, 0, 0, 0, 0, 0, 0, 485 }, 486 "6x86MX", /* Default */ 487 cyrix6x86_cpu_setup, 488 NULL, 489 NULL, 490 }, 491 /* Family > 6 */ 492 { 493 CPUCLASS_686, 494 { 495 0, 0, 0, 0, 0, 0, 0, 0, 496 0, 0, 0, 0, 0, 0, 0, 0, 497 }, 498 "Unknown 6x86MX", /* Default */ 499 NULL, 500 NULL, 501 NULL, 502 } } 503 }, 504 { /* MediaGX is now owned by National Semiconductor */ 505 "Geode by NSC", 506 CPUVENDOR_CYRIX, /* XXX */ 507 "National Semiconductor", 508 /* Family 4, NSC never had any of these */ 509 { { 510 CPUCLASS_486, 511 { 512 0, 0, 0, 0, 0, 0, 0, 0, 513 0, 0, 0, 0, 0, 0, 0, 0, 514 }, 515 "486 compatible", /* Default */ 516 NULL, 517 NULL, 518 NULL, 519 }, 520 /* Family 5: Geode family, formerly MediaGX */ 521 { 522 CPUCLASS_586, 523 { 524 0, 0, 0, 0, 525 "Geode GX1", 526 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 527 }, 528 "Geode", /* Default */ 529 cyrix6x86_cpu_setup, 530 NULL, 531 amd_cpu_cacheinfo, 532 }, 533 /* Family 6, not yet available from NSC */ 534 { 535 CPUCLASS_686, 536 { 537 0, 0, 0, 0, 0, 0, 0, 0, 538 0, 0, 0, 0, 0, 0, 0, 0, 539 }, 540 "Pentium Pro compatible", /* Default */ 541 NULL, 542 NULL, 543 NULL, 544 }, 545 /* Family > 6, not yet available from NSC */ 546 { 547 CPUCLASS_686, 548 { 549 0, 0, 0, 0, 0, 0, 0, 0, 550 0, 0, 0, 0, 0, 0, 0, 0, 551 }, 552 "Pentium Pro compatible", /* Default */ 553 NULL, 554 NULL, 555 NULL, 556 } } 557 }, 558 { 559 "CentaurHauls", 560 CPUVENDOR_IDT, 561 "IDT", 562 /* Family 4, IDT never had any of these */ 563 { { 564 CPUCLASS_486, 565 { 566 0, 0, 0, 0, 0, 0, 0, 0, 567 0, 0, 0, 0, 0, 0, 0, 0, 568 }, 569 "486 compatible", /* Default */ 570 NULL, 571 NULL, 572 NULL, 573 }, 574 /* Family 5 */ 575 { 576 CPUCLASS_586, 577 { 578 0, 0, 0, 0, "WinChip C6", 0, 0, 0, 579 "WinChip 2", "WinChip 3", 0, 0, 0, 0, 0, 0, 580 }, 581 "WinChip", /* Default */ 582 winchip_cpu_setup, 583 NULL, 584 NULL, 585 }, 586 /* Family 6, VIA acquired IDT Centaur design subsidiary */ 587 { 588 CPUCLASS_686, 589 { 590 0, 0, 0, 0, 0, 0, "C3 Samuel", 591 "C3 Samuel 2/Ezra", "C3 Ezra-T", 592 "C3 Nehemiah", "C7 Esther", 0, 0, "C7 Esther", 593 0, "VIA Nano", 594 }, 595 "Unknown VIA/IDT", /* Default */ 596 NULL, 597 via_cpu_probe, 598 via_cpu_cacheinfo, 599 }, 600 /* Family > 6, not yet available from VIA */ 601 { 602 CPUCLASS_686, 603 { 604 0, 0, 0, 0, 0, 0, 0, 0, 605 0, 0, 0, 0, 0, 0, 0, 0, 606 }, 607 "Pentium Pro compatible", /* Default */ 608 NULL, 609 NULL, 610 NULL, 611 } } 612 }, 613 { 614 "GenuineTMx86", 615 CPUVENDOR_TRANSMETA, 616 "Transmeta", 617 /* Family 4, Transmeta never had any of these */ 618 { { 619 CPUCLASS_486, 620 { 621 0, 0, 0, 0, 0, 0, 0, 0, 622 0, 0, 0, 0, 0, 0, 0, 0, 623 }, 624 "486 compatible", /* Default */ 625 NULL, 626 NULL, 627 NULL, 628 }, 629 /* Family 5 */ 630 { 631 CPUCLASS_586, 632 { 633 0, 0, 0, 0, 0, 0, 0, 0, 634 0, 0, 0, 0, 0, 0, 0, 0, 635 }, 636 "Crusoe", /* Default */ 637 NULL, 638 NULL, 639 transmeta_cpu_info, 640 }, 641 /* Family 6, not yet available from Transmeta */ 642 { 643 CPUCLASS_686, 644 { 645 0, 0, 0, 0, 0, 0, 0, 0, 646 0, 0, 0, 0, 0, 0, 0, 0, 647 }, 648 "Pentium Pro compatible", /* Default */ 649 NULL, 650 NULL, 651 NULL, 652 }, 653 /* Family > 6, not yet available from Transmeta */ 654 { 655 CPUCLASS_686, 656 { 657 0, 0, 0, 0, 0, 0, 0, 0, 658 0, 0, 0, 0, 0, 0, 0, 0, 659 }, 660 "Pentium Pro compatible", /* Default */ 661 NULL, 662 NULL, 663 NULL, 664 } } 665 } 666 }; 667 668 /* 669 * disable the TSC such that we don't use the TSC in microtime(9) 670 * because some CPUs got the implementation wrong. 671 */ 672 static void 673 disable_tsc(struct cpu_info *ci) 674 { 675 if (ci->ci_feat_val[0] & CPUID_TSC) { 676 ci->ci_feat_val[0] &= ~CPUID_TSC; 677 aprint_error("WARNING: broken TSC disabled\n"); 678 } 679 } 680 681 static void 682 amd_family5_setup(struct cpu_info *ci) 683 { 684 685 switch (ci->ci_model) { 686 case 0: /* AMD-K5 Model 0 */ 687 /* 688 * According to the AMD Processor Recognition App Note, 689 * the AMD-K5 Model 0 uses the wrong bit to indicate 690 * support for global PTEs, instead using bit 9 (APIC) 691 * rather than bit 13 (i.e. "0x200" vs. 0x2000". Oops!). 692 */ 693 if (ci->ci_feat_val[0] & CPUID_APIC) 694 ci->ci_feat_val[0] = 695 (ci->ci_feat_val[0] & ~CPUID_APIC) | CPUID_PGE; 696 /* 697 * XXX But pmap_pg_g is already initialized -- need to kick 698 * XXX the pmap somehow. How does the MP branch do this? 699 */ 700 break; 701 } 702 } 703 704 static void 705 cyrix6x86_cpu_setup(struct cpu_info *ci) 706 { 707 708 /* 709 * Do not disable the TSC on the Geode GX, it's reported to 710 * work fine. 711 */ 712 if (ci->ci_signature != 0x552) 713 disable_tsc(ci); 714 } 715 716 static void 717 winchip_cpu_setup(struct cpu_info *ci) 718 { 719 switch (ci->ci_model) { 720 case 4: /* WinChip C6 */ 721 disable_tsc(ci); 722 } 723 } 724 725 726 static const char * 727 intel_family6_name(struct cpu_info *ci) 728 { 729 const char *ret = NULL; 730 u_int l2cache = ci->ci_cinfo[CAI_L2CACHE].cai_totalsize; 731 732 if (ci->ci_model == 5) { 733 switch (l2cache) { 734 case 0: 735 case 128 * 1024: 736 ret = "Celeron (Covington)"; 737 break; 738 case 256 * 1024: 739 ret = "Mobile Pentium II (Dixon)"; 740 break; 741 case 512 * 1024: 742 ret = "Pentium II"; 743 break; 744 case 1 * 1024 * 1024: 745 case 2 * 1024 * 1024: 746 ret = "Pentium II Xeon"; 747 break; 748 } 749 } else if (ci->ci_model == 6) { 750 switch (l2cache) { 751 case 256 * 1024: 752 case 512 * 1024: 753 ret = "Mobile Pentium II"; 754 break; 755 } 756 } else if (ci->ci_model == 7) { 757 switch (l2cache) { 758 case 512 * 1024: 759 ret = "Pentium III"; 760 break; 761 case 1 * 1024 * 1024: 762 case 2 * 1024 * 1024: 763 ret = "Pentium III Xeon"; 764 break; 765 } 766 } else if (ci->ci_model >= 8) { 767 if (ci->ci_brand_id && ci->ci_brand_id < 0x10) { 768 switch (ci->ci_brand_id) { 769 case 0x3: 770 if (ci->ci_signature == 0x6B1) 771 ret = "Celeron"; 772 break; 773 case 0x8: 774 if (ci->ci_signature >= 0xF13) 775 ret = "genuine processor"; 776 break; 777 case 0xB: 778 if (ci->ci_signature >= 0xF13) 779 ret = "Xeon MP"; 780 break; 781 case 0xE: 782 if (ci->ci_signature < 0xF13) 783 ret = "Xeon"; 784 break; 785 } 786 if (ret == NULL) 787 ret = i386_intel_brand[ci->ci_brand_id]; 788 } 789 } 790 791 return ret; 792 } 793 794 /* 795 * Identify AMD64 CPU names from cpuid. 796 * 797 * Based on: 798 * "Revision Guide for AMD Athlon 64 and AMD Opteron Processors" 799 * http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/25759.pdf 800 * "Revision Guide for AMD NPT Family 0Fh Processors" 801 * http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/33610.pdf 802 * and other miscellaneous reports. 803 * 804 * This is all rather pointless, these are cross 'brand' since the raw 805 * silicon is shared. 806 */ 807 static const char * 808 amd_amd64_name(struct cpu_info *ci) 809 { 810 static char family_str[32]; 811 812 /* Only called if family >= 15 */ 813 814 switch (ci->ci_family) { 815 case 15: 816 switch (ci->ci_model) { 817 case 0x21: /* rev JH-E1/E6 */ 818 case 0x41: /* rev JH-F2 */ 819 return "Dual-Core Opteron"; 820 case 0x23: /* rev JH-E6 (Toledo) */ 821 return "Dual-Core Opteron or Athlon 64 X2"; 822 case 0x43: /* rev JH-F2 (Windsor) */ 823 return "Athlon 64 FX or Athlon 64 X2"; 824 case 0x24: /* rev SH-E5 (Lancaster?) */ 825 return "Mobile Athlon 64 or Turion 64"; 826 case 0x05: /* rev SH-B0/B3/C0/CG (SledgeHammer?) */ 827 return "Opteron or Athlon 64 FX"; 828 case 0x15: /* rev SH-D0 */ 829 case 0x25: /* rev SH-E4 */ 830 return "Opteron"; 831 case 0x27: /* rev DH-E4, SH-E4 */ 832 return "Athlon 64 or Athlon 64 FX or Opteron"; 833 case 0x48: /* rev BH-F2 */ 834 return "Turion 64 X2"; 835 case 0x04: /* rev SH-B0/C0/CG (ClawHammer) */ 836 case 0x07: /* rev SH-CG (ClawHammer) */ 837 case 0x0b: /* rev CH-CG */ 838 case 0x14: /* rev SH-D0 */ 839 case 0x17: /* rev SH-D0 */ 840 case 0x1b: /* rev CH-D0 */ 841 return "Athlon 64"; 842 case 0x2b: /* rev BH-E4 (Manchester) */ 843 case 0x4b: /* rev BH-F2 (Windsor) */ 844 return "Athlon 64 X2"; 845 case 0x6b: /* rev BH-G1 (Brisbane) */ 846 return "Athlon X2 or Athlon 64 X2"; 847 case 0x08: /* rev CH-CG */ 848 case 0x0c: /* rev DH-CG (Newcastle) */ 849 case 0x0e: /* rev DH-CG (Newcastle?) */ 850 case 0x0f: /* rev DH-CG (Newcastle/Paris) */ 851 case 0x18: /* rev CH-D0 */ 852 case 0x1c: /* rev DH-D0 (Winchester) */ 853 case 0x1f: /* rev DH-D0 (Winchester/Victoria) */ 854 case 0x2c: /* rev DH-E3/E6 */ 855 case 0x2f: /* rev DH-E3/E6 (Venice/Palermo) */ 856 case 0x4f: /* rev DH-F2 (Orleans/Manila) */ 857 case 0x5f: /* rev DH-F2 (Orleans/Manila) */ 858 case 0x6f: /* rev DH-G1 */ 859 return "Athlon 64 or Sempron"; 860 default: 861 break; 862 } 863 return "Unknown AMD64 CPU"; 864 865 #if 0 866 case 16: 867 return "Family 10h"; 868 case 17: 869 return "Family 11h"; 870 case 18: 871 return "Family 12h"; 872 case 19: 873 return "Family 14h"; 874 case 20: 875 return "Family 15h"; 876 #endif 877 878 default: 879 break; 880 } 881 882 snprintf(family_str, sizeof family_str, "Family %xh", ci->ci_family); 883 return family_str; 884 } 885 886 static void 887 intel_family_new_probe(struct cpu_info *ci) 888 { 889 uint32_t descs[4]; 890 891 x86_cpuid(0x80000000, descs); 892 893 /* 894 * Determine extended feature flags. 895 */ 896 if (descs[0] >= 0x80000001) { 897 x86_cpuid(0x80000001, descs); 898 ci->ci_feat_val[2] |= descs[3]; 899 ci->ci_feat_val[3] |= descs[2]; 900 } 901 } 902 903 static void 904 via_cpu_probe(struct cpu_info *ci) 905 { 906 u_int stepping = CPUID_TO_STEPPING(ci->ci_signature); 907 u_int descs[4]; 908 u_int lfunc; 909 910 /* 911 * Determine the largest extended function value. 912 */ 913 x86_cpuid(0x80000000, descs); 914 lfunc = descs[0]; 915 916 /* 917 * Determine the extended feature flags. 918 */ 919 if (lfunc >= 0x80000001) { 920 x86_cpuid(0x80000001, descs); 921 ci->ci_feat_val[2] |= descs[3]; 922 } 923 924 if (ci->ci_model < 0x9 || (ci->ci_model == 0x9 && stepping < 3)) 925 return; 926 927 /* Nehemiah or Esther */ 928 x86_cpuid(0xc0000000, descs); 929 lfunc = descs[0]; 930 if (lfunc < 0xc0000001) /* no ACE, no RNG */ 931 return; 932 933 x86_cpuid(0xc0000001, descs); 934 lfunc = descs[3]; 935 ci->ci_feat_val[4] = lfunc; 936 } 937 938 static void 939 amd_family6_probe(struct cpu_info *ci) 940 { 941 uint32_t descs[4]; 942 char *p; 943 size_t i; 944 945 x86_cpuid(0x80000000, descs); 946 947 /* 948 * Determine the extended feature flags. 949 */ 950 if (descs[0] >= 0x80000001) { 951 x86_cpuid(0x80000001, descs); 952 ci->ci_feat_val[2] |= descs[3]; /* %edx */ 953 ci->ci_feat_val[3] = descs[2]; /* %ecx */ 954 } 955 956 if (*cpu_brand_string == '\0') 957 return; 958 959 for (i = 1; i < __arraycount(amd_brand); i++) 960 if ((p = strstr(cpu_brand_string, amd_brand[i])) != NULL) { 961 ci->ci_brand_id = i; 962 strlcpy(amd_brand_name, p, sizeof(amd_brand_name)); 963 break; 964 } 965 } 966 967 static void 968 intel_cpu_cacheinfo(struct cpu_info *ci) 969 { 970 const struct x86_cache_info *cai; 971 u_int descs[4]; 972 int iterations, i, j; 973 int type, level, ways, linesize, sets; 974 int caitype = -1; 975 uint8_t desc; 976 977 /* Return if the cpu is old pre-cpuid instruction cpu */ 978 if (ci->ci_cpu_type >= 0) 979 return; 980 981 if (ci->ci_max_cpuid < 2) 982 return; 983 984 /* 985 * Parse the cache info from `cpuid leaf 2', if we have it. 986 * XXX This is kinda ugly, but hey, so is the architecture... 987 */ 988 x86_cpuid(2, descs); 989 iterations = descs[0] & 0xff; 990 while (iterations-- > 0) { 991 for (i = 0; i < 4; i++) { 992 if (descs[i] & 0x80000000) 993 continue; 994 for (j = 0; j < 4; j++) { 995 /* 996 * The least significant byte in EAX 997 * ((desc[0] >> 0) & 0xff) is always 0x01 and 998 * it should be ignored. 999 */ 1000 if (i == 0 && j == 0) 1001 continue; 1002 desc = (descs[i] >> (j * 8)) & 0xff; 1003 if (desc == 0) 1004 continue; 1005 cai = cpu_cacheinfo_lookup( 1006 intel_cpuid_cache_info, desc); 1007 if (cai != NULL) 1008 ci->ci_cinfo[cai->cai_index] = *cai; 1009 else if ((verbose != 0) && (desc != 0xff) 1010 && (desc != 0xfe)) 1011 aprint_error_dev(ci->ci_dev, "error:" 1012 " Unknown cacheinfo desc %02x\n", 1013 desc); 1014 } 1015 } 1016 x86_cpuid(2, descs); 1017 } 1018 1019 if (ci->ci_max_cpuid < 4) 1020 return; 1021 1022 /* Parse the cache info from `cpuid leaf 4', if we have it. */ 1023 cpu_dcp_cacheinfo(ci, 4); 1024 1025 if (ci->ci_max_cpuid < 0x18) 1026 return; 1027 /* Parse the TLB info from `cpuid leaf 18H', if we have it. */ 1028 x86_cpuid(0x18, descs); 1029 iterations = descs[0]; 1030 for (i = 0; i <= iterations; i++) { 1031 uint32_t pgsize; 1032 bool full; 1033 1034 x86_cpuid2(0x18, i, descs); 1035 type = __SHIFTOUT(descs[3], CPUID_DATP_TCTYPE); 1036 if (type == CPUID_DATP_TCTYPE_N) 1037 continue; 1038 level = __SHIFTOUT(descs[3], CPUID_DATP_TCLEVEL); 1039 pgsize = __SHIFTOUT(descs[1], CPUID_DATP_PGSIZE); 1040 switch (level) { 1041 case 1: 1042 if (type == CPUID_DATP_TCTYPE_I) { 1043 switch (pgsize) { 1044 case CPUID_DATP_PGSIZE_4KB: 1045 caitype = CAI_ITLB; 1046 break; 1047 case CPUID_DATP_PGSIZE_2MB 1048 | CPUID_DATP_PGSIZE_4MB: 1049 caitype = CAI_ITLB2; 1050 break; 1051 case CPUID_DATP_PGSIZE_1GB: 1052 caitype = CAI_L1_1GBITLB; 1053 break; 1054 default: 1055 aprint_error_dev(ci->ci_dev, 1056 "error: unknown ITLB size (%d)\n", 1057 pgsize); 1058 caitype = CAI_ITLB; 1059 break; 1060 } 1061 } else if (type == CPUID_DATP_TCTYPE_D) { 1062 switch (pgsize) { 1063 case CPUID_DATP_PGSIZE_4KB: 1064 caitype = CAI_DTLB; 1065 break; 1066 case CPUID_DATP_PGSIZE_2MB 1067 | CPUID_DATP_PGSIZE_4MB: 1068 caitype = CAI_DTLB2; 1069 break; 1070 case CPUID_DATP_PGSIZE_1GB: 1071 caitype = CAI_L1_1GBDTLB; 1072 break; 1073 default: 1074 aprint_error_dev(ci->ci_dev, 1075 "error: unknown DTLB size (%d)\n", 1076 pgsize); 1077 caitype = CAI_DTLB; 1078 break; 1079 } 1080 } else if (type == CPUID_DATP_TCTYPE_L) 1081 caitype = CAI_L1_LD_TLB; 1082 else if (type == CPUID_DATP_TCTYPE_S) 1083 caitype = CAI_L1_ST_TLB; 1084 else 1085 caitype = -1; 1086 break; 1087 case 2: 1088 if (type == CPUID_DATP_TCTYPE_I) 1089 caitype = CAI_L2_ITLB; 1090 else if (type == CPUID_DATP_TCTYPE_D) 1091 caitype = CAI_L2_DTLB; 1092 else if (type == CPUID_DATP_TCTYPE_U) { 1093 if (pgsize == CPUID_DATP_PGSIZE_4KB) 1094 caitype = CAI_L2_STLB; 1095 else if (pgsize == (CPUID_DATP_PGSIZE_4KB 1096 | CPUID_DATP_PGSIZE_2MB)) 1097 caitype = CAI_L2_STLB2; 1098 else if (pgsize == (CPUID_DATP_PGSIZE_2MB 1099 | CPUID_DATP_PGSIZE_4MB)) 1100 caitype = CAI_L2_STLB3; 1101 else if ((pgsize & CPUID_DATP_PGSIZE_1GB) 1102 != 0) { 1103 /* FIXME: 1GB max TLB */ 1104 caitype = CAI_L2_STLB3; 1105 linesize = 1024 * 1024 * 1024; 1106 } else if ((pgsize & CPUID_DATP_PGSIZE_4MB) 1107 != 0) { 1108 /* FIXME: 4MB max TLB */ 1109 caitype = CAI_L2_STLB3; 1110 linesize = 4 * 1024 * 1024; 1111 } else if ((pgsize & CPUID_DATP_PGSIZE_2MB) 1112 != 0) { 1113 /* FIXME: 2MB max TLB */ 1114 caitype = CAI_L2_STLB2; 1115 linesize = 2 * 1024 * 1024; 1116 } else { 1117 aprint_error_dev(ci->ci_dev, "error: " 1118 "unknown L2 STLB size (%d)\n", 1119 pgsize); 1120 caitype = CAI_L2_STLB; 1121 linesize = 4 * 1024; 1122 } 1123 } else 1124 caitype = -1; 1125 break; 1126 case 3: 1127 /* XXX need work for L3 TLB */ 1128 caitype = CAI_L3CACHE; 1129 break; 1130 default: 1131 caitype = -1; 1132 break; 1133 } 1134 if (caitype == -1) { 1135 aprint_error_dev(ci->ci_dev, 1136 "error: unknown TLB level&type (%d & %d)\n", 1137 level, type); 1138 continue; 1139 } 1140 switch (pgsize) { 1141 case CPUID_DATP_PGSIZE_4KB: 1142 linesize = 4 * 1024; 1143 break; 1144 case CPUID_DATP_PGSIZE_2MB: 1145 linesize = 2 * 1024 * 1024; 1146 break; 1147 case CPUID_DATP_PGSIZE_4MB: 1148 linesize = 4 * 1024 * 1024; 1149 break; 1150 case CPUID_DATP_PGSIZE_1GB: 1151 linesize = 1024 * 1024 * 1024; 1152 break; 1153 default: 1154 if ((pgsize & CPUID_DATP_PGSIZE_1GB) != 0) 1155 linesize = 1024 * 1024 * 1024; /* MAX 1G */ 1156 else if ((pgsize & CPUID_DATP_PGSIZE_4MB) != 0) 1157 linesize = 4 * 1024 * 1024; /* MAX 4M */ 1158 else if ((pgsize & CPUID_DATP_PGSIZE_2MB) != 0) 1159 linesize = 2 * 1024 * 1024; /* MAX 2M */ 1160 else 1161 linesize = 4 * 1024; /* XXX default to 4K */ 1162 aprint_error_dev(ci->ci_dev, "WARNING: Currently " 1163 "this info can't print correctly " 1164 "(level = %d, pgsize = %d)\n", 1165 level, pgsize); 1166 break; 1167 } 1168 ways = __SHIFTOUT(descs[1], CPUID_DATP_WAYS); 1169 sets = descs[2]; 1170 full = descs[3] & CPUID_DATP_FULLASSOC; 1171 ci->ci_cinfo[caitype].cai_totalsize 1172 = ways * sets; /* entries */ 1173 ci->ci_cinfo[caitype].cai_associativity 1174 = full ? 0xff : ways; 1175 ci->ci_cinfo[caitype].cai_linesize = linesize; /* pg size */ 1176 } 1177 } 1178 1179 static const struct x86_cache_info amd_cpuid_l2l3cache_assoc_info[] = 1180 AMD_L2L3CACHE_INFO; 1181 1182 static void 1183 amd_cpu_cacheinfo(struct cpu_info *ci) 1184 { 1185 const struct x86_cache_info *cp; 1186 struct x86_cache_info *cai; 1187 u_int descs[4]; 1188 u_int lfunc; 1189 bool l2tlbx32 = false; 1190 1191 /* K5 model 0 has none of this info. */ 1192 if (ci->ci_family == 5 && ci->ci_model == 0) 1193 return; 1194 1195 /* Determine the largest extended function value. */ 1196 x86_cpuid(0x80000000, descs); 1197 lfunc = descs[0]; 1198 1199 if (lfunc < 0x80000005) 1200 return; 1201 1202 /* Determine L1 cache/TLB info. */ 1203 x86_cpuid(0x80000005, descs); 1204 1205 /* K6-III and higher have large page TLBs. */ 1206 if ((ci->ci_family == 5 && ci->ci_model >= 9) || ci->ci_family >= 6) { 1207 cai = &ci->ci_cinfo[CAI_ITLB2]; 1208 cai->cai_totalsize = AMD_L1_EAX_ITLB_ENTRIES(descs[0]); 1209 cai->cai_associativity = AMD_L1_EAX_ITLB_ASSOC(descs[0]); 1210 cai->cai_linesize = largepagesize; 1211 1212 cai = &ci->ci_cinfo[CAI_DTLB2]; 1213 cai->cai_totalsize = AMD_L1_EAX_DTLB_ENTRIES(descs[0]); 1214 cai->cai_associativity = AMD_L1_EAX_DTLB_ASSOC(descs[0]); 1215 cai->cai_linesize = largepagesize; 1216 } 1217 1218 cai = &ci->ci_cinfo[CAI_ITLB]; 1219 cai->cai_totalsize = AMD_L1_EBX_ITLB_ENTRIES(descs[1]); 1220 cai->cai_associativity = AMD_L1_EBX_ITLB_ASSOC(descs[1]); 1221 cai->cai_linesize = (4 * 1024); 1222 1223 cai = &ci->ci_cinfo[CAI_DTLB]; 1224 cai->cai_totalsize = AMD_L1_EBX_DTLB_ENTRIES(descs[1]); 1225 cai->cai_associativity = AMD_L1_EBX_DTLB_ASSOC(descs[1]); 1226 cai->cai_linesize = (4 * 1024); 1227 1228 cai = &ci->ci_cinfo[CAI_DCACHE]; 1229 cai->cai_totalsize = AMD_L1_ECX_DC_SIZE(descs[2]); 1230 cai->cai_associativity = AMD_L1_ECX_DC_ASSOC(descs[2]); 1231 cai->cai_linesize = AMD_L1_ECX_DC_LS(descs[2]); 1232 1233 cai = &ci->ci_cinfo[CAI_ICACHE]; 1234 cai->cai_totalsize = AMD_L1_EDX_IC_SIZE(descs[3]); 1235 cai->cai_associativity = AMD_L1_EDX_IC_ASSOC(descs[3]); 1236 cai->cai_linesize = AMD_L1_EDX_IC_LS(descs[3]); 1237 1238 if (lfunc < 0x80000006) 1239 return; 1240 1241 /* Determine L2 cache/TLB info. */ 1242 if (lfunc >= 0x80000021) { 1243 x86_cpuid(0x80000021, descs); 1244 l2tlbx32 = descs[0] & CPUID_AMDEXT2_L2TLBSIZEX32; 1245 } 1246 x86_cpuid(0x80000006, descs); 1247 1248 cai = &ci->ci_cinfo[CAI_L2_ITLB]; 1249 cai->cai_totalsize = 1250 AMD_L2_EBX_IUTLB_ENTRIES(descs[1]) * (l2tlbx32 ? 32 : 1); 1251 cai->cai_associativity = AMD_L2_EBX_IUTLB_ASSOC(descs[1]); 1252 cai->cai_linesize = (4 * 1024); 1253 cp = cpu_cacheinfo_lookup(amd_cpuid_l2l3cache_assoc_info, 1254 cai->cai_associativity); 1255 if (cp != NULL) 1256 cai->cai_associativity = cp->cai_associativity; 1257 else 1258 cai->cai_associativity = 0; /* XXX Unknown/reserved */ 1259 1260 cai = &ci->ci_cinfo[CAI_L2_ITLB2]; 1261 cai->cai_totalsize = 1262 AMD_L2_EAX_IUTLB_ENTRIES(descs[0]) * (l2tlbx32 ? 32 : 1); 1263 cai->cai_associativity = AMD_L2_EAX_IUTLB_ASSOC(descs[0]); 1264 cai->cai_linesize = largepagesize; 1265 cp = cpu_cacheinfo_lookup(amd_cpuid_l2l3cache_assoc_info, 1266 cai->cai_associativity); 1267 if (cp != NULL) 1268 cai->cai_associativity = cp->cai_associativity; 1269 else 1270 cai->cai_associativity = 0; /* XXX Unknown/reserved */ 1271 1272 cai = &ci->ci_cinfo[CAI_L2_DTLB]; 1273 cai->cai_totalsize = 1274 AMD_L2_EBX_DTLB_ENTRIES(descs[1]) * (l2tlbx32 ? 32 : 1); 1275 cai->cai_associativity = AMD_L2_EBX_DTLB_ASSOC(descs[1]); 1276 cai->cai_linesize = (4 * 1024); 1277 cp = cpu_cacheinfo_lookup(amd_cpuid_l2l3cache_assoc_info, 1278 cai->cai_associativity); 1279 if (cp != NULL) 1280 cai->cai_associativity = cp->cai_associativity; 1281 else 1282 cai->cai_associativity = 0; /* XXX Unknown/reserved */ 1283 1284 cai = &ci->ci_cinfo[CAI_L2_DTLB2]; 1285 cai->cai_totalsize = 1286 AMD_L2_EAX_DTLB_ENTRIES(descs[0]) * (l2tlbx32 ? 32 : 1); 1287 cai->cai_associativity = AMD_L2_EAX_DTLB_ASSOC(descs[0]); 1288 cai->cai_linesize = largepagesize; 1289 cp = cpu_cacheinfo_lookup(amd_cpuid_l2l3cache_assoc_info, 1290 cai->cai_associativity); 1291 if (cp != NULL) 1292 cai->cai_associativity = cp->cai_associativity; 1293 else 1294 cai->cai_associativity = 0; /* XXX Unknown/reserved */ 1295 1296 cai = &ci->ci_cinfo[CAI_L2CACHE]; 1297 cai->cai_totalsize = AMD_L2_ECX_C_SIZE(descs[2]); 1298 cai->cai_associativity = AMD_L2_ECX_C_ASSOC(descs[2]); 1299 cai->cai_linesize = AMD_L2_ECX_C_LS(descs[2]); 1300 1301 cp = cpu_cacheinfo_lookup(amd_cpuid_l2l3cache_assoc_info, 1302 cai->cai_associativity); 1303 if (cp != NULL) 1304 cai->cai_associativity = cp->cai_associativity; 1305 else 1306 cai->cai_associativity = 0; /* XXX Unknown/reserved */ 1307 1308 /* Determine L3 cache info on AMD Family 10h and newer processors */ 1309 if (ci->ci_family >= 0x10) { 1310 cai = &ci->ci_cinfo[CAI_L3CACHE]; 1311 cai->cai_totalsize = AMD_L3_EDX_C_SIZE(descs[3]); 1312 cai->cai_associativity = AMD_L3_EDX_C_ASSOC(descs[3]); 1313 cai->cai_linesize = AMD_L3_EDX_C_LS(descs[3]); 1314 1315 cp = cpu_cacheinfo_lookup(amd_cpuid_l2l3cache_assoc_info, 1316 cai->cai_associativity); 1317 if (cp != NULL) 1318 cai->cai_associativity = cp->cai_associativity; 1319 else 1320 cai->cai_associativity = 0; /* XXX Unkn/Rsvd */ 1321 } 1322 1323 if (lfunc < 0x80000019) 1324 return; 1325 1326 /* Determine 1GB TLB info. */ 1327 x86_cpuid(0x80000019, descs); 1328 1329 cai = &ci->ci_cinfo[CAI_L1_1GBITLB]; 1330 cai->cai_totalsize = AMD_L1_1GB_EAX_IUTLB_ENTRIES(descs[0]); 1331 cai->cai_associativity = AMD_L1_1GB_EAX_IUTLB_ASSOC(descs[0]); 1332 cai->cai_linesize = (1024 * 1024 * 1024); 1333 cp = cpu_cacheinfo_lookup(amd_cpuid_l2l3cache_assoc_info, 1334 cai->cai_associativity); 1335 if (cp != NULL) 1336 cai->cai_associativity = cp->cai_associativity; 1337 else 1338 cai->cai_associativity = 0; /* XXX Unknown/reserved */ 1339 1340 cai = &ci->ci_cinfo[CAI_L1_1GBDTLB]; 1341 cai->cai_totalsize = AMD_L1_1GB_EAX_DTLB_ENTRIES(descs[0]); 1342 cai->cai_associativity = AMD_L1_1GB_EAX_DTLB_ASSOC(descs[0]); 1343 cai->cai_linesize = (1024 * 1024 * 1024); 1344 cp = cpu_cacheinfo_lookup(amd_cpuid_l2l3cache_assoc_info, 1345 cai->cai_associativity); 1346 if (cp != NULL) 1347 cai->cai_associativity = cp->cai_associativity; 1348 else 1349 cai->cai_associativity = 0; /* XXX Unknown/reserved */ 1350 1351 cai = &ci->ci_cinfo[CAI_L2_1GBITLB]; 1352 cai->cai_totalsize = 1353 AMD_L2_1GB_EBX_IUTLB_ENTRIES(descs[1]) * (l2tlbx32 ? 32 : 1); 1354 cai->cai_associativity = AMD_L2_1GB_EBX_IUTLB_ASSOC(descs[1]); 1355 cai->cai_linesize = (1024 * 1024 * 1024); 1356 cp = cpu_cacheinfo_lookup(amd_cpuid_l2l3cache_assoc_info, 1357 cai->cai_associativity); 1358 if (cp != NULL) 1359 cai->cai_associativity = cp->cai_associativity; 1360 else 1361 cai->cai_associativity = 0; /* XXX Unknown/reserved */ 1362 1363 cai = &ci->ci_cinfo[CAI_L2_1GBDTLB]; 1364 cai->cai_totalsize = 1365 AMD_L2_1GB_EBX_DUTLB_ENTRIES(descs[1]) * (l2tlbx32 ? 32 : 1); 1366 cai->cai_associativity = AMD_L2_1GB_EBX_DUTLB_ASSOC(descs[1]); 1367 cai->cai_linesize = (1024 * 1024 * 1024); 1368 cp = cpu_cacheinfo_lookup(amd_cpuid_l2l3cache_assoc_info, 1369 cai->cai_associativity); 1370 if (cp != NULL) 1371 cai->cai_associativity = cp->cai_associativity; 1372 else 1373 cai->cai_associativity = 0; /* XXX Unknown/reserved */ 1374 1375 if (lfunc < 0x8000001d) 1376 return; 1377 1378 if (ci->ci_feat_val[3] & CPUID_TOPOEXT) 1379 cpu_dcp_cacheinfo(ci, 0x8000001d); 1380 } 1381 1382 static void 1383 via_cpu_cacheinfo(struct cpu_info *ci) 1384 { 1385 struct x86_cache_info *cai; 1386 int stepping; 1387 u_int descs[4]; 1388 u_int lfunc; 1389 1390 stepping = CPUID_TO_STEPPING(ci->ci_signature); 1391 1392 /* 1393 * Determine the largest extended function value. 1394 */ 1395 x86_cpuid(0x80000000, descs); 1396 lfunc = descs[0]; 1397 1398 /* 1399 * Determine L1 cache/TLB info. 1400 */ 1401 if (lfunc < 0x80000005) { 1402 /* No L1 cache info available. */ 1403 return; 1404 } 1405 1406 x86_cpuid(0x80000005, descs); 1407 1408 cai = &ci->ci_cinfo[CAI_ITLB]; 1409 cai->cai_totalsize = VIA_L1_EBX_ITLB_ENTRIES(descs[1]); 1410 cai->cai_associativity = VIA_L1_EBX_ITLB_ASSOC(descs[1]); 1411 cai->cai_linesize = (4 * 1024); 1412 1413 cai = &ci->ci_cinfo[CAI_DTLB]; 1414 cai->cai_totalsize = VIA_L1_EBX_DTLB_ENTRIES(descs[1]); 1415 cai->cai_associativity = VIA_L1_EBX_DTLB_ASSOC(descs[1]); 1416 cai->cai_linesize = (4 * 1024); 1417 1418 cai = &ci->ci_cinfo[CAI_DCACHE]; 1419 cai->cai_totalsize = VIA_L1_ECX_DC_SIZE(descs[2]); 1420 cai->cai_associativity = VIA_L1_ECX_DC_ASSOC(descs[2]); 1421 cai->cai_linesize = VIA_L1_EDX_IC_LS(descs[2]); 1422 if (ci->ci_model == 9 && stepping == 8) { 1423 /* Erratum: stepping 8 reports 4 when it should be 2 */ 1424 cai->cai_associativity = 2; 1425 } 1426 1427 cai = &ci->ci_cinfo[CAI_ICACHE]; 1428 cai->cai_totalsize = VIA_L1_EDX_IC_SIZE(descs[3]); 1429 cai->cai_associativity = VIA_L1_EDX_IC_ASSOC(descs[3]); 1430 cai->cai_linesize = VIA_L1_EDX_IC_LS(descs[3]); 1431 if (ci->ci_model == 9 && stepping == 8) { 1432 /* Erratum: stepping 8 reports 4 when it should be 2 */ 1433 cai->cai_associativity = 2; 1434 } 1435 1436 /* 1437 * Determine L2 cache/TLB info. 1438 */ 1439 if (lfunc < 0x80000006) { 1440 /* No L2 cache info available. */ 1441 return; 1442 } 1443 1444 x86_cpuid(0x80000006, descs); 1445 1446 cai = &ci->ci_cinfo[CAI_L2CACHE]; 1447 if (ci->ci_model >= 9) { 1448 cai->cai_totalsize = VIA_L2N_ECX_C_SIZE(descs[2]); 1449 cai->cai_associativity = VIA_L2N_ECX_C_ASSOC(descs[2]); 1450 cai->cai_linesize = VIA_L2N_ECX_C_LS(descs[2]); 1451 } else { 1452 cai->cai_totalsize = VIA_L2_ECX_C_SIZE(descs[2]); 1453 cai->cai_associativity = VIA_L2_ECX_C_ASSOC(descs[2]); 1454 cai->cai_linesize = VIA_L2_ECX_C_LS(descs[2]); 1455 } 1456 } 1457 1458 static void 1459 tmx86_get_longrun_status(u_int *frequency, u_int *voltage, u_int *percentage) 1460 { 1461 u_int descs[4]; 1462 1463 x86_cpuid(0x80860007, descs); 1464 *frequency = descs[0]; 1465 *voltage = descs[1]; 1466 *percentage = descs[2]; 1467 } 1468 1469 static void 1470 transmeta_cpu_info(struct cpu_info *ci) 1471 { 1472 u_int descs[4], nreg; 1473 u_int frequency, voltage, percentage; 1474 1475 x86_cpuid(0x80860000, descs); 1476 nreg = descs[0]; 1477 if (nreg >= 0x80860001) { 1478 x86_cpuid(0x80860001, descs); 1479 aprint_verbose_dev(ci->ci_dev, "Processor revision %u.%u.%u.%u\n", 1480 (descs[1] >> 24) & 0xff, 1481 (descs[1] >> 16) & 0xff, 1482 (descs[1] >> 8) & 0xff, 1483 descs[1] & 0xff); 1484 } 1485 if (nreg >= 0x80860002) { 1486 x86_cpuid(0x80860002, descs); 1487 aprint_verbose_dev(ci->ci_dev, "Code Morphing Software Rev: %u.%u.%u-%u-%u\n", 1488 (descs[1] >> 24) & 0xff, 1489 (descs[1] >> 16) & 0xff, 1490 (descs[1] >> 8) & 0xff, 1491 descs[1] & 0xff, 1492 descs[2]); 1493 } 1494 if (nreg >= 0x80860006) { 1495 union { 1496 char text[65]; 1497 u_int descs[4][4]; 1498 } info; 1499 int i; 1500 1501 for (i=0; i<4; i++) { 1502 x86_cpuid(0x80860003 + i, info.descs[i]); 1503 } 1504 info.text[64] = '\0'; 1505 aprint_verbose_dev(ci->ci_dev, "%s\n", info.text); 1506 } 1507 1508 if (nreg >= 0x80860007) { 1509 tmx86_get_longrun_status(&frequency, 1510 &voltage, &percentage); 1511 aprint_verbose_dev(ci->ci_dev, "LongRun <%dMHz %dmV %d%%>\n", 1512 frequency, voltage, percentage); 1513 } 1514 } 1515 1516 static void 1517 cpu_probe_base_features(struct cpu_info *ci, const char *cpuname) 1518 { 1519 u_int descs[4]; 1520 int i; 1521 uint32_t brand[12]; 1522 1523 memset(ci, 0, sizeof(*ci)); 1524 ci->ci_dev = cpuname; 1525 1526 ci->ci_cpu_type = x86_identify(); 1527 if (ci->ci_cpu_type >= 0) { 1528 /* Old pre-cpuid instruction cpu */ 1529 ci->ci_max_cpuid = -1; 1530 return; 1531 } 1532 1533 /* 1534 * This CPU supports cpuid instruction, so we can call x86_cpuid() 1535 * function. 1536 */ 1537 1538 /* 1539 * Fn0000_0000: 1540 * - Save cpuid max level. 1541 * - Save vendor string. 1542 */ 1543 x86_cpuid(0, descs); 1544 ci->ci_max_cpuid = descs[0]; 1545 /* Save vendor string */ 1546 ci->ci_vendor[0] = descs[1]; 1547 ci->ci_vendor[2] = descs[2]; 1548 ci->ci_vendor[1] = descs[3]; 1549 ci->ci_vendor[3] = 0; 1550 1551 /* 1552 * Fn8000_0000: 1553 * - Get cpuid extended function's max level. 1554 */ 1555 x86_cpuid(0x80000000, descs); 1556 if (descs[0] >= 0x80000000) 1557 ci->ci_max_ext_cpuid = descs[0]; 1558 else { 1559 /* Set lower value than 0x80000000 */ 1560 ci->ci_max_ext_cpuid = 0; 1561 } 1562 1563 /* 1564 * Fn8000_000[2-4]: 1565 * - Save brand string. 1566 */ 1567 if (ci->ci_max_ext_cpuid >= 0x80000004) { 1568 x86_cpuid(0x80000002, brand); 1569 x86_cpuid(0x80000003, brand + 4); 1570 x86_cpuid(0x80000004, brand + 8); 1571 for (i = 0; i < 48; i++) 1572 if (((char *) brand)[i] != ' ') 1573 break; 1574 memcpy(cpu_brand_string, ((char *) brand) + i, 48 - i); 1575 } 1576 1577 if (ci->ci_max_cpuid < 1) 1578 return; 1579 1580 /* 1581 * Fn0000_0001: 1582 * - Get CPU family, model and stepping (from eax). 1583 * - Initial local APIC ID and brand ID (from ebx) 1584 * - CPUID2 (from ecx) 1585 * - CPUID (from edx) 1586 */ 1587 x86_cpuid(1, descs); 1588 ci->ci_signature = descs[0]; 1589 1590 /* Extract full family/model values */ 1591 ci->ci_family = CPUID_TO_FAMILY(ci->ci_signature); 1592 ci->ci_model = CPUID_TO_MODEL(ci->ci_signature); 1593 1594 /* Brand is low order 8 bits of ebx */ 1595 ci->ci_brand_id = __SHIFTOUT(descs[1], CPUID_BRAND_INDEX); 1596 /* Initial local APIC ID */ 1597 ci->ci_initapicid = __SHIFTOUT(descs[1], CPUID_LOCAL_APIC_ID); 1598 1599 ci->ci_feat_val[1] = descs[2]; 1600 ci->ci_feat_val[0] = descs[3]; 1601 1602 if (ci->ci_max_cpuid < 3) 1603 return; 1604 1605 /* 1606 * If the processor serial number misfeature is present and supported, 1607 * extract it here. 1608 */ 1609 if ((ci->ci_feat_val[0] & CPUID_PSN) != 0) { 1610 ci->ci_cpu_serial[0] = ci->ci_signature; 1611 x86_cpuid(3, descs); 1612 ci->ci_cpu_serial[2] = descs[2]; 1613 ci->ci_cpu_serial[1] = descs[3]; 1614 } 1615 1616 if (ci->ci_max_cpuid < 0x7) 1617 return; 1618 1619 x86_cpuid(7, descs); 1620 ci->ci_feat_val[5] = descs[1]; 1621 ci->ci_feat_val[6] = descs[2]; 1622 ci->ci_feat_val[7] = descs[3]; 1623 1624 if (ci->ci_max_cpuid < 0xd) 1625 return; 1626 1627 /* Get support XCR0 bits */ 1628 x86_cpuid2(0xd, 0, descs); 1629 ci->ci_feat_val[8] = descs[0]; /* Actually 64 bits */ 1630 ci->ci_cur_xsave = descs[1]; 1631 ci->ci_max_xsave = descs[2]; 1632 1633 /* Additional flags (eg xsaveopt support) */ 1634 x86_cpuid2(0xd, 1, descs); 1635 ci->ci_feat_val[9] = descs[0]; /* Actually 64 bits */ 1636 } 1637 1638 static void 1639 cpu_probe_hv_features(struct cpu_info *ci, const char *cpuname) 1640 { 1641 uint32_t descs[4]; 1642 char hv_sig[13]; 1643 char *p; 1644 const char *hv_name; 1645 int i; 1646 1647 /* 1648 * [RFC] CPUID usage for interaction between Hypervisors and Linux. 1649 * http://lkml.org/lkml/2008/10/1/246 1650 * 1651 * KB1009458: Mechanisms to determine if software is running in 1652 * a VMware virtual machine 1653 * http://kb.vmware.com/kb/1009458 1654 */ 1655 if ((ci->ci_feat_val[1] & CPUID2_RAZ) != 0) { 1656 x86_cpuid(0x40000000, descs); 1657 for (i = 1, p = hv_sig; i < 4; i++, p += sizeof(descs) / 4) 1658 memcpy(p, &descs[i], sizeof(descs[i])); 1659 *p = '\0'; 1660 /* 1661 * HV vendor ID string 1662 * ------------+-------------- 1663 * HAXM "HAXMHAXMHAXM" 1664 * KVM "KVMKVMKVM" 1665 * Microsoft "Microsoft Hv" 1666 * QEMU(TCG) "TCGTCGTCGTCG" 1667 * VMware "VMwareVMware" 1668 * Xen "XenVMMXenVMM" 1669 * NetBSD "___ NVMM ___" 1670 */ 1671 if (strncmp(hv_sig, "HAXMHAXMHAXM", 12) == 0) 1672 hv_name = "HAXM"; 1673 else if (strncmp(hv_sig, "KVMKVMKVM", 9) == 0) 1674 hv_name = "KVM"; 1675 else if (strncmp(hv_sig, "Microsoft Hv", 12) == 0) 1676 hv_name = "Hyper-V"; 1677 else if (strncmp(hv_sig, "TCGTCGTCGTCG", 12) == 0) 1678 hv_name = "QEMU(TCG)"; 1679 else if (strncmp(hv_sig, "VMwareVMware", 12) == 0) 1680 hv_name = "VMware"; 1681 else if (strncmp(hv_sig, "XenVMMXenVMM", 12) == 0) 1682 hv_name = "Xen"; 1683 else if (strncmp(hv_sig, "___ NVMM ___", 12) == 0) 1684 hv_name = "NVMM"; 1685 else 1686 hv_name = "unknown"; 1687 1688 printf("%s: Running on hypervisor: %s\n", cpuname, hv_name); 1689 } 1690 } 1691 1692 static void 1693 cpu_probe_features(struct cpu_info *ci) 1694 { 1695 const struct cpu_cpuid_nameclass *cpup = NULL; 1696 unsigned int i; 1697 1698 if (ci->ci_max_cpuid < 1) 1699 return; 1700 1701 for (i = 0; i < __arraycount(i386_cpuid_cpus); i++) { 1702 if (!strncmp((char *)ci->ci_vendor, 1703 i386_cpuid_cpus[i].cpu_id, 12)) { 1704 cpup = &i386_cpuid_cpus[i]; 1705 break; 1706 } 1707 } 1708 1709 if (cpup == NULL) 1710 return; 1711 1712 i = ci->ci_family - CPU_MINFAMILY; 1713 1714 if (i >= __arraycount(cpup->cpu_family)) 1715 i = __arraycount(cpup->cpu_family) - 1; 1716 1717 if (cpup->cpu_family[i].cpu_probe == NULL) 1718 return; 1719 1720 (*cpup->cpu_family[i].cpu_probe)(ci); 1721 } 1722 1723 static void 1724 print_bits(const char *cpuname, const char *hdr, const char *fmt, uint32_t val) 1725 { 1726 char buf[32 * 16]; 1727 char *bp; 1728 1729 #define MAX_LINE_LEN 79 /* get from command arg or 'stty cols' ? */ 1730 1731 if (val == 0 || fmt == NULL) 1732 return; 1733 1734 snprintb_m(buf, sizeof(buf), fmt, val, 1735 MAX_LINE_LEN - strlen(cpuname) - 2 - strlen(hdr) - 1); 1736 bp = buf; 1737 while (*bp != '\0') { 1738 aprint_verbose("%s: %s %s\n", cpuname, hdr, bp); 1739 bp += strlen(bp) + 1; 1740 } 1741 } 1742 #ifdef lint 1743 #define print_bits(cpuname, hdr, fmt, val) \ 1744 do { \ 1745 print_bits(cpuname, hdr, fmt, val); \ 1746 snprintb(NULL, 0, fmt, val); \ 1747 } while (0) 1748 #endif 1749 1750 static void 1751 dump_descs(uint32_t leafstart, uint32_t leafend, const char *cpuname, 1752 const char *blockname) 1753 { 1754 uint32_t descs[4]; 1755 uint32_t leaf; 1756 1757 aprint_verbose("%s: highest %s info %08x\n", cpuname, blockname, 1758 leafend); 1759 1760 if (verbose) { 1761 for (leaf = leafstart; leaf <= leafend; leaf++) { 1762 x86_cpuid(leaf, descs); 1763 printf("%s: %08x: %08x %08x %08x %08x\n", cpuname, 1764 leaf, descs[0], descs[1], descs[2], descs[3]); 1765 } 1766 } 1767 } 1768 1769 static void 1770 identifycpu_cpuids_intel_0x04(struct cpu_info *ci) 1771 { 1772 u_int lp_max = 1; /* logical processors per package */ 1773 u_int smt_max; /* smt per core */ 1774 u_int core_max = 1; /* core per package */ 1775 u_int smt_bits, core_bits; 1776 uint32_t descs[4]; 1777 1778 /* 1779 * 253668.pdf 7.10.2 1780 */ 1781 1782 if ((ci->ci_feat_val[0] & CPUID_HTT) != 0) { 1783 x86_cpuid(1, descs); 1784 lp_max = __SHIFTOUT(descs[1], CPUID_HTT_CORES); 1785 } 1786 x86_cpuid2(4, 0, descs); 1787 core_max = __SHIFTOUT(descs[0], CPUID_DCP_CORE_P_PKG) + 1; 1788 1789 assert(lp_max >= core_max); 1790 smt_max = lp_max / core_max; 1791 smt_bits = ilog2(smt_max - 1) + 1; 1792 core_bits = ilog2(core_max - 1) + 1; 1793 1794 if (smt_bits + core_bits) 1795 ci->ci_packageid = ci->ci_initapicid >> (smt_bits + core_bits); 1796 1797 if (core_bits) 1798 ci->ci_coreid = __SHIFTOUT(ci->ci_initapicid, 1799 __BITS(smt_bits, smt_bits + core_bits - 1)); 1800 1801 if (smt_bits) 1802 ci->ci_smtid = __SHIFTOUT(ci->ci_initapicid, 1803 __BITS((int)0, (int)(smt_bits - 1))); 1804 } 1805 1806 static void 1807 identifycpu_cpuids_intel_0x0b(struct cpu_info *ci) 1808 { 1809 const char *cpuname = ci->ci_dev; 1810 u_int smt_bits, core_bits, core_shift = 0, pkg_shift = 0; 1811 uint32_t descs[4]; 1812 int i; 1813 1814 x86_cpuid(0x0b, descs); 1815 if (descs[1] == 0) { 1816 identifycpu_cpuids_intel_0x04(ci); 1817 return; 1818 } 1819 1820 for (i = 0; ; i++) { 1821 unsigned int shiftnum, lvltype; 1822 x86_cpuid2(0x0b, i, descs); 1823 1824 /* On invalid level, (EAX and) EBX return 0 */ 1825 if (descs[1] == 0) 1826 break; 1827 1828 shiftnum = __SHIFTOUT(descs[0], CPUID_TOP_SHIFTNUM); 1829 lvltype = __SHIFTOUT(descs[2], CPUID_TOP_LVLTYPE); 1830 switch (lvltype) { 1831 case CPUID_TOP_LVLTYPE_SMT: 1832 core_shift = shiftnum; 1833 break; 1834 case CPUID_TOP_LVLTYPE_CORE: 1835 pkg_shift = shiftnum; 1836 break; 1837 case CPUID_TOP_LVLTYPE_INVAL: 1838 aprint_verbose("%s: Invalid level type\n", cpuname); 1839 break; 1840 default: 1841 aprint_verbose("%s: Unknown level type(%d) \n", 1842 cpuname, lvltype); 1843 break; 1844 } 1845 } 1846 1847 assert(pkg_shift >= core_shift); 1848 smt_bits = core_shift; 1849 core_bits = pkg_shift - core_shift; 1850 1851 ci->ci_packageid = ci->ci_initapicid >> pkg_shift; 1852 1853 if (core_bits) 1854 ci->ci_coreid = __SHIFTOUT(ci->ci_initapicid, 1855 __BITS(core_shift, pkg_shift - 1)); 1856 1857 if (smt_bits) 1858 ci->ci_smtid = __SHIFTOUT(ci->ci_initapicid, 1859 __BITS((int)0, core_shift - 1)); 1860 } 1861 1862 static void 1863 identifycpu_cpuids_intel(struct cpu_info *ci) 1864 { 1865 const char *cpuname = ci->ci_dev; 1866 1867 if (ci->ci_max_cpuid >= 0x0b) 1868 identifycpu_cpuids_intel_0x0b(ci); 1869 else if (ci->ci_max_cpuid >= 4) 1870 identifycpu_cpuids_intel_0x04(ci); 1871 1872 aprint_verbose("%s: Cluster/Package ID %u\n", cpuname, 1873 ci->ci_packageid); 1874 aprint_verbose("%s: Core ID %u\n", cpuname, ci->ci_coreid); 1875 aprint_verbose("%s: SMT ID %u\n", cpuname, ci->ci_smtid); 1876 } 1877 1878 static void 1879 identifycpu_cpuids_amd(struct cpu_info *ci) 1880 { 1881 const char *cpuname = ci->ci_dev; 1882 u_int lp_max, core_max; 1883 int n, cpu_family, apic_id, smt_bits, core_bits = 0; 1884 uint32_t descs[4]; 1885 1886 apic_id = ci->ci_initapicid; 1887 cpu_family = CPUID_TO_FAMILY(ci->ci_signature); 1888 1889 if (cpu_family < 0xf) 1890 return; 1891 1892 if ((ci->ci_feat_val[0] & CPUID_HTT) != 0) { 1893 x86_cpuid(1, descs); 1894 lp_max = __SHIFTOUT(descs[1], CPUID_HTT_CORES); 1895 1896 if (cpu_family >= 0x10 && ci->ci_max_ext_cpuid >= 0x8000008) { 1897 x86_cpuid(0x8000008, descs); 1898 core_max = (descs[2] & 0xff) + 1; 1899 n = (descs[2] >> 12) & 0x0f; 1900 if (n != 0) 1901 core_bits = n; 1902 } 1903 } else { 1904 lp_max = 1; 1905 } 1906 core_max = lp_max; 1907 1908 smt_bits = ilog2((lp_max / core_max) - 1) + 1; 1909 if (core_bits == 0) 1910 core_bits = ilog2(core_max - 1) + 1; 1911 1912 #if 0 /* MSRs need kernel mode */ 1913 if (cpu_family < 0x11) { 1914 const uint64_t reg = rdmsr(MSR_NB_CFG); 1915 if ((reg & NB_CFG_INITAPICCPUIDLO) == 0) { 1916 const u_int node_id = apic_id & __BITS(0, 2); 1917 apic_id = (cpu_family == 0xf) ? 1918 (apic_id >> core_bits) | (node_id << core_bits) : 1919 (apic_id >> 5) | (node_id << 2); 1920 } 1921 } 1922 #endif 1923 1924 if (cpu_family >= 0x17) { 1925 x86_cpuid(0x8000001e, descs); 1926 const u_int threads = ((descs[1] >> 8) & 0xff) + 1; 1927 smt_bits = ilog2(threads); 1928 core_bits -= smt_bits; 1929 } 1930 1931 if (smt_bits + core_bits) { 1932 if (smt_bits + core_bits < 32) 1933 ci->ci_packageid = 0; 1934 } 1935 if (core_bits) { 1936 u_int core_mask = __BITS(smt_bits, smt_bits + core_bits - 1); 1937 ci->ci_coreid = __SHIFTOUT(apic_id, core_mask); 1938 } 1939 if (smt_bits) { 1940 u_int smt_mask = __BITS(0, smt_bits - 1); 1941 ci->ci_smtid = __SHIFTOUT(apic_id, smt_mask); 1942 } 1943 1944 aprint_verbose("%s: Cluster/Package ID %u\n", cpuname, 1945 ci->ci_packageid); 1946 aprint_verbose("%s: Core ID %u\n", cpuname, ci->ci_coreid); 1947 aprint_verbose("%s: SMT ID %u\n", cpuname, ci->ci_smtid); 1948 } 1949 1950 static void 1951 identifycpu_cpuids(struct cpu_info *ci) 1952 { 1953 const char *cpuname = ci->ci_dev; 1954 1955 aprint_verbose("%s: Initial APIC ID %u\n", cpuname, ci->ci_initapicid); 1956 ci->ci_packageid = ci->ci_initapicid; 1957 ci->ci_coreid = 0; 1958 ci->ci_smtid = 0; 1959 1960 if (cpu_vendor == CPUVENDOR_INTEL) 1961 identifycpu_cpuids_intel(ci); 1962 else if (cpu_vendor == CPUVENDOR_AMD) 1963 identifycpu_cpuids_amd(ci); 1964 } 1965 1966 void 1967 identifycpu(int fd, const char *cpuname) 1968 { 1969 const char *name = "", *modifier, *vendorname, *brand = ""; 1970 int class = CPUCLASS_386; 1971 unsigned int i; 1972 int modif, family; 1973 const struct cpu_cpuid_nameclass *cpup = NULL; 1974 const struct cpu_cpuid_family *cpufam; 1975 struct cpu_info *ci, cistore; 1976 u_int descs[4]; 1977 size_t sz; 1978 struct cpu_ucode_version ucode; 1979 union { 1980 struct cpu_ucode_version_amd amd; 1981 struct cpu_ucode_version_intel1 intel1; 1982 } ucvers; 1983 1984 ci = &cistore; 1985 cpu_probe_base_features(ci, cpuname); 1986 dump_descs(0x00000000, ci->ci_max_cpuid, cpuname, "basic"); 1987 if ((ci->ci_feat_val[1] & CPUID2_RAZ) != 0) { 1988 x86_cpuid(0x40000000, descs); 1989 dump_descs(0x40000000, descs[0], cpuname, "hypervisor"); 1990 } 1991 dump_descs(0x80000000, ci->ci_max_ext_cpuid, cpuname, "extended"); 1992 1993 cpu_probe_hv_features(ci, cpuname); 1994 cpu_probe_features(ci); 1995 1996 if (ci->ci_cpu_type >= 0) { 1997 /* Old pre-cpuid instruction cpu */ 1998 if (ci->ci_cpu_type >= (int)__arraycount(i386_nocpuid_cpus)) 1999 errx(1, "unknown cpu type %d", ci->ci_cpu_type); 2000 name = i386_nocpuid_cpus[ci->ci_cpu_type].cpu_name; 2001 cpu_vendor = i386_nocpuid_cpus[ci->ci_cpu_type].cpu_vendor; 2002 vendorname = i386_nocpuid_cpus[ci->ci_cpu_type].cpu_vendorname; 2003 class = i386_nocpuid_cpus[ci->ci_cpu_type].cpu_class; 2004 ci->ci_info = i386_nocpuid_cpus[ci->ci_cpu_type].cpu_info; 2005 modifier = ""; 2006 } else { 2007 /* CPU which support cpuid instruction */ 2008 modif = (ci->ci_signature >> 12) & 0x3; 2009 family = ci->ci_family; 2010 if (family < CPU_MINFAMILY) 2011 errx(1, "identifycpu: strange family value"); 2012 if (family > CPU_MAXFAMILY) 2013 family = CPU_MAXFAMILY; 2014 2015 for (i = 0; i < __arraycount(i386_cpuid_cpus); i++) { 2016 if (!strncmp((char *)ci->ci_vendor, 2017 i386_cpuid_cpus[i].cpu_id, 12)) { 2018 cpup = &i386_cpuid_cpus[i]; 2019 break; 2020 } 2021 } 2022 2023 if (cpup == NULL) { 2024 cpu_vendor = CPUVENDOR_UNKNOWN; 2025 if (ci->ci_vendor[0] != '\0') 2026 vendorname = (char *)&ci->ci_vendor[0]; 2027 else 2028 vendorname = "Unknown"; 2029 class = family - 3; 2030 modifier = ""; 2031 name = ""; 2032 ci->ci_info = NULL; 2033 } else { 2034 cpu_vendor = cpup->cpu_vendor; 2035 vendorname = cpup->cpu_vendorname; 2036 modifier = modifiers[modif]; 2037 cpufam = &cpup->cpu_family[family - CPU_MINFAMILY]; 2038 name = cpufam->cpu_models[ci->ci_model]; 2039 if (name == NULL || *name == '\0') 2040 name = cpufam->cpu_model_default; 2041 class = cpufam->cpu_class; 2042 ci->ci_info = cpufam->cpu_info; 2043 2044 if (cpu_vendor == CPUVENDOR_INTEL) { 2045 if (ci->ci_family == 6 && ci->ci_model >= 5) { 2046 const char *tmp; 2047 tmp = intel_family6_name(ci); 2048 if (tmp != NULL) 2049 name = tmp; 2050 } 2051 if (ci->ci_family == 15 && 2052 ci->ci_brand_id < 2053 __arraycount(i386_intel_brand) && 2054 i386_intel_brand[ci->ci_brand_id]) 2055 name = 2056 i386_intel_brand[ci->ci_brand_id]; 2057 } 2058 2059 if (cpu_vendor == CPUVENDOR_AMD) { 2060 if (ci->ci_family == 6 && ci->ci_model >= 6) { 2061 if (ci->ci_brand_id == 1) 2062 /* 2063 * It's Duron. We override the 2064 * name, since it might have 2065 * been misidentified as Athlon. 2066 */ 2067 name = 2068 amd_brand[ci->ci_brand_id]; 2069 else 2070 brand = amd_brand_name; 2071 } 2072 if (CPUID_TO_BASEFAMILY(ci->ci_signature) 2073 == 0xf) { 2074 /* Identify AMD64 CPU names. */ 2075 const char *tmp; 2076 tmp = amd_amd64_name(ci); 2077 if (tmp != NULL) 2078 name = tmp; 2079 } 2080 } 2081 2082 if (cpu_vendor == CPUVENDOR_IDT && ci->ci_family >= 6) 2083 vendorname = "VIA"; 2084 } 2085 } 2086 2087 ci->ci_cpu_class = class; 2088 2089 sz = sizeof(ci->ci_tsc_freq); 2090 (void)sysctlbyname("machdep.tsc_freq", &ci->ci_tsc_freq, &sz, NULL, 0); 2091 sz = sizeof(use_pae); 2092 (void)sysctlbyname("machdep.pae", &use_pae, &sz, NULL, 0); 2093 largepagesize = (use_pae ? 2 * 1024 * 1024 : 4 * 1024 * 1024); 2094 2095 /* 2096 * The 'cpu_brand_string' is much more useful than the 'cpu_model' 2097 * we try to determine from the family/model values. 2098 */ 2099 if (*cpu_brand_string != '\0') 2100 aprint_normal("%s: \"%s\"\n", cpuname, cpu_brand_string); 2101 2102 aprint_normal("%s: %s", cpuname, vendorname); 2103 if (*modifier) 2104 aprint_normal(" %s", modifier); 2105 if (*name) 2106 aprint_normal(" %s", name); 2107 if (*brand) 2108 aprint_normal(" %s", brand); 2109 aprint_normal(" (%s-class)", classnames[class]); 2110 2111 if (ci->ci_tsc_freq != 0) 2112 aprint_normal(", %ju.%02ju MHz", 2113 ((uintmax_t)ci->ci_tsc_freq + 4999) / 1000000, 2114 (((uintmax_t)ci->ci_tsc_freq + 4999) / 10000) % 100); 2115 aprint_normal("\n"); 2116 2117 (void)cpu_tsc_freq_cpuid(ci); 2118 2119 aprint_normal_dev(ci->ci_dev, "family %#x model %#x stepping %#x", 2120 ci->ci_family, ci->ci_model, CPUID_TO_STEPPING(ci->ci_signature)); 2121 if (ci->ci_signature != 0) 2122 aprint_normal(" (id %#x)", ci->ci_signature); 2123 aprint_normal("\n"); 2124 2125 if (ci->ci_info) 2126 (*ci->ci_info)(ci); 2127 2128 /* 2129 * display CPU feature flags 2130 */ 2131 2132 print_bits(cpuname, "features", CPUID_FLAGS1, ci->ci_feat_val[0]); 2133 print_bits(cpuname, "features1", CPUID2_FLAGS1, ci->ci_feat_val[1]); 2134 2135 /* These next two are actually common definitions! */ 2136 print_bits(cpuname, "features2", 2137 cpu_vendor == CPUVENDOR_INTEL ? CPUID_INTEL_EXT_FLAGS 2138 : CPUID_EXT_FLAGS, ci->ci_feat_val[2]); 2139 print_bits(cpuname, "features3", 2140 cpu_vendor == CPUVENDOR_INTEL ? CPUID_INTEL_FLAGS4 2141 : CPUID_AMD_FLAGS4, ci->ci_feat_val[3]); 2142 2143 print_bits(cpuname, "padlock features", CPUID_FLAGS_PADLOCK, 2144 ci->ci_feat_val[4]); 2145 if ((cpu_vendor == CPUVENDOR_INTEL) || (cpu_vendor == CPUVENDOR_AMD)) 2146 print_bits(cpuname, "features5", CPUID_SEF_FLAGS, 2147 ci->ci_feat_val[5]); 2148 if ((cpu_vendor == CPUVENDOR_INTEL) || (cpu_vendor == CPUVENDOR_AMD)) 2149 print_bits(cpuname, "features6", CPUID_SEF_FLAGS1, 2150 ci->ci_feat_val[6]); 2151 2152 if (cpu_vendor == CPUVENDOR_INTEL) 2153 print_bits(cpuname, "features7", CPUID_SEF_FLAGS2, 2154 ci->ci_feat_val[7]); 2155 2156 print_bits(cpuname, "xsave features", XCR0_FLAGS1, ci->ci_feat_val[8]); 2157 print_bits(cpuname, "xsave instructions", CPUID_PES1_FLAGS, 2158 ci->ci_feat_val[9]); 2159 2160 if (ci->ci_max_xsave != 0) { 2161 aprint_normal("%s: xsave area size: current %d, maximum %d", 2162 cpuname, ci->ci_cur_xsave, ci->ci_max_xsave); 2163 aprint_normal(", xgetbv %sabled\n", 2164 ci->ci_feat_val[1] & CPUID2_OSXSAVE ? "en" : "dis"); 2165 if (ci->ci_feat_val[1] & CPUID2_OSXSAVE) 2166 print_bits(cpuname, "enabled xsave", XCR0_FLAGS1, 2167 x86_xgetbv()); 2168 } 2169 2170 x86_print_cache_and_tlb_info(ci); 2171 2172 if (ci->ci_max_cpuid >= 3 && (ci->ci_feat_val[0] & CPUID_PSN)) { 2173 aprint_verbose("%s: serial number %04X-%04X-%04X-%04X-%04X-%04X\n", 2174 cpuname, 2175 ci->ci_cpu_serial[0] / 65536, ci->ci_cpu_serial[0] % 65536, 2176 ci->ci_cpu_serial[1] / 65536, ci->ci_cpu_serial[1] % 65536, 2177 ci->ci_cpu_serial[2] / 65536, ci->ci_cpu_serial[2] % 65536); 2178 } 2179 2180 if (ci->ci_cpu_class == CPUCLASS_386) 2181 errx(1, "NetBSD requires an 80486 or later processor"); 2182 2183 if (ci->ci_cpu_type == CPU_486DLC) { 2184 #ifndef CYRIX_CACHE_WORKS 2185 aprint_error("WARNING: CYRIX 486DLC CACHE UNCHANGED.\n"); 2186 #else 2187 #ifndef CYRIX_CACHE_REALLY_WORKS 2188 aprint_error("WARNING: CYRIX 486DLC CACHE ENABLED IN HOLD-FLUSH MODE.\n"); 2189 #else 2190 aprint_error("WARNING: CYRIX 486DLC CACHE ENABLED.\n"); 2191 #endif 2192 #endif 2193 } 2194 2195 /* 2196 * Everything past this point requires a Pentium or later. 2197 */ 2198 if (ci->ci_max_cpuid < 0) 2199 return; 2200 2201 identifycpu_cpuids(ci); 2202 2203 if ((ci->ci_max_cpuid >= 5) 2204 && ((cpu_vendor == CPUVENDOR_INTEL) 2205 || (cpu_vendor == CPUVENDOR_AMD))) { 2206 uint16_t lmin, lmax; 2207 x86_cpuid(5, descs); 2208 2209 print_bits(cpuname, "MONITOR/MWAIT extensions", 2210 CPUID_MON_FLAGS, descs[2]); 2211 lmin = __SHIFTOUT(descs[0], CPUID_MON_MINSIZE); 2212 lmax = __SHIFTOUT(descs[1], CPUID_MON_MAXSIZE); 2213 aprint_normal("%s: monitor-line size %hu", cpuname, lmin); 2214 if (lmin != lmax) 2215 aprint_normal("-%hu", lmax); 2216 aprint_normal("\n"); 2217 2218 for (i = 0; i <= 7; i++) { 2219 unsigned int num = CPUID_MON_SUBSTATE(descs[3], i); 2220 2221 if (num != 0) 2222 aprint_normal("%s: C%u substates %u\n", 2223 cpuname, i, num); 2224 } 2225 } 2226 if ((ci->ci_max_cpuid >= 6) 2227 && ((cpu_vendor == CPUVENDOR_INTEL) 2228 || (cpu_vendor == CPUVENDOR_AMD))) { 2229 x86_cpuid(6, descs); 2230 print_bits(cpuname, "DSPM-eax", CPUID_DSPM_FLAGS, descs[0]); 2231 print_bits(cpuname, "DSPM-ecx", CPUID_DSPM_FLAGS1, descs[2]); 2232 } 2233 if ((ci->ci_max_cpuid >= 7) 2234 && ((cpu_vendor == CPUVENDOR_INTEL) 2235 || (cpu_vendor == CPUVENDOR_AMD))) { 2236 unsigned int maxsubleaf; 2237 2238 x86_cpuid(7, descs); 2239 maxsubleaf = descs[0]; 2240 aprint_verbose("%s: SEF highest subleaf %08x\n", 2241 cpuname, maxsubleaf); 2242 if (maxsubleaf >= 1) { 2243 x86_cpuid2(7, 1, descs); 2244 print_bits(cpuname, "SEF-subleaf1-eax", 2245 CPUID_SEF1_FLAGS_A, descs[0]); 2246 print_bits(cpuname, "SEF-subleaf1-ebx", 2247 CPUID_SEF1_FLAGS_B, descs[1]); 2248 print_bits(cpuname, "SEF-subleaf1-edx", 2249 CPUID_SEF1_FLAGS_D, descs[3]); 2250 } 2251 if (maxsubleaf >= 2) { 2252 x86_cpuid2(7, 2, descs); 2253 print_bits(cpuname, "SEF-subleaf2-edx", 2254 CPUID_SEF2_FLAGS_D, descs[3]); 2255 } 2256 } 2257 2258 if ((cpu_vendor == CPUVENDOR_INTEL) || (cpu_vendor == CPUVENDOR_AMD)) { 2259 if (ci->ci_max_ext_cpuid >= 0x80000007) 2260 powernow_probe(ci); 2261 2262 if (ci->ci_max_ext_cpuid >= 0x80000008) { 2263 x86_cpuid(0x80000008, descs); 2264 print_bits(cpuname, "AMD Extended features", 2265 CPUID_CAPEX_FLAGS, descs[1]); 2266 } 2267 } 2268 2269 if (cpu_vendor == CPUVENDOR_AMD) { 2270 if (ci->ci_max_ext_cpuid >= 0x80000021) { 2271 x86_cpuid(0x80000021, descs); 2272 print_bits(cpuname, "AMD Extended features2", 2273 CPUID_AMDEXT2_FLAGS, descs[0]); 2274 } 2275 2276 if (ci->ci_max_ext_cpuid >= 0x80000007) { 2277 x86_cpuid(0x80000007, descs); 2278 print_bits(cpuname, "RAS features", 2279 CPUID_RAS_FLAGS, descs[1]); 2280 } 2281 if ((ci->ci_max_ext_cpuid >= 0x8000000a) 2282 && (ci->ci_feat_val[3] & CPUID_SVM) != 0) { 2283 x86_cpuid(0x8000000a, descs); 2284 aprint_verbose("%s: SVM Rev. %d\n", cpuname, 2285 descs[0] & 0xf); 2286 aprint_verbose("%s: SVM NASID %d\n", cpuname, 2287 descs[1]); 2288 print_bits(cpuname, "SVM features", 2289 CPUID_AMD_SVM_FLAGS, descs[3]); 2290 } 2291 if (ci->ci_max_ext_cpuid >= 0x8000001b) { 2292 x86_cpuid(0x8000001b, descs); 2293 print_bits(cpuname, "IBS features", 2294 CPUID_IBS_FLAGS, descs[0]); 2295 } 2296 if (ci->ci_max_ext_cpuid >= 0x8000001f) { 2297 x86_cpuid(0x8000001f, descs); 2298 print_bits(cpuname, "Encrypted Memory features", 2299 CPUID_AMD_ENCMEM_FLAGS, descs[0]); 2300 } 2301 if (ci->ci_max_ext_cpuid >= 0x80000022) { 2302 uint8_t ncore, nnb, numc, nlbrs; 2303 2304 x86_cpuid(0x80000022, descs); 2305 print_bits(cpuname, "Perfmon:", 2306 CPUID_AXPERF_FLAGS, descs[0]); 2307 2308 ncore = __SHIFTOUT(descs[1], CPUID_AXPERF_NCPC); 2309 nnb = __SHIFTOUT(descs[1], CPUID_AXPERF_NNBPC); 2310 numc = __SHIFTOUT(descs[1], CPUID_AXPERF_NUMCPC); 2311 nlbrs = __SHIFTOUT(descs[1], CPUID_AXPERF_NLBRSTACK); 2312 aprint_verbose("%s: Perfmon: counters: " 2313 "Core %hhu, Northbridge %hhu, UMC %hhu\n", cpuname, 2314 ncore, nnb, numc); 2315 aprint_verbose("%s: Perfmon: LBR Stack %hhu entries\n", 2316 cpuname, nlbrs); 2317 } 2318 if (ci->ci_max_ext_cpuid >= 0x80000027) { 2319 uint8_t classes; 2320 2321 x86_cpuid(0x80000027, descs); 2322 classes = __SHIFTOUT(descs[0], CPUID_HWC_NWC); 2323 aprint_verbose("%s: Hetero workload class: " 2324 "%hhu classes\n", cpuname, classes); 2325 } 2326 } else if (cpu_vendor == CPUVENDOR_INTEL) { 2327 if (ci->ci_max_cpuid >= 0x0a) { 2328 unsigned int pmcver, ncounter, veclen; 2329 2330 x86_cpuid(0x0a, descs); 2331 pmcver = __SHIFTOUT(descs[0], CPUID_PERF_VERSION); 2332 ncounter = __SHIFTOUT(descs[0], CPUID_PERF_NGPPC); 2333 veclen = __SHIFTOUT(descs[0], CPUID_PERF_BVECLEN); 2334 aprint_verbose("%s: Perfmon: Ver. %u", 2335 cpuname, pmcver); 2336 if (((pmcver >= 3) && (pmcver <= 4)) || 2337 ((pmcver >= 5) && 2338 (descs[3] & CPUID_PERF_ANYTHREADDEPR) == 0)) 2339 aprint_verbose(" <ANYTHREAD>\n"); 2340 else 2341 aprint_verbose("\n"); 2342 2343 aprint_verbose("%s: Perfmon: General: " 2344 "bitwidth %u, %u counters\n", cpuname, 2345 (uint32_t)__SHIFTOUT(descs[0], CPUID_PERF_NBWGPPC), 2346 ncounter); 2347 /* Invert logic for the output */ 2348 descs[1] ^= __BITS(veclen - 1, 0); 2349 /* 2350 * Mask unrelated bits. An hypervisor reduces the 2351 * vector and set bit(s) out of the vector. 2352 */ 2353 descs[1] &= __BITS(veclen - 1, 0); 2354 print_bits(cpuname, "Perfmon: General: avail", 2355 CPUID_PERF_FLAGS1, descs[1]); 2356 2357 if (pmcver >= 2) { 2358 ncounter = __SHIFTOUT(descs[3], 2359 CPUID_PERF_NFFPC); 2360 aprint_verbose("%s: Perfmon: Fixed: " 2361 "bitwidth %u, %u counters\n", cpuname, 2362 (uint32_t)__SHIFTOUT(descs[3], 2363 CPUID_PERF_NBWFFPC), 2364 ncounter); 2365 if (pmcver <= 4) 2366 descs[2] = __BITS(ncounter - 1, 0); 2367 print_bits(cpuname, "Perfmon: Fixed: avail", 2368 CPUID_PERF_FLAGS2, descs[2]); 2369 } 2370 } 2371 if (ci->ci_max_cpuid >= 0x1a) { 2372 x86_cpuid(0x1a, descs); 2373 if (descs[0] != 0) { 2374 aprint_verbose("%s: Hybrid: Core type %02x, " 2375 "Native Model ID %07x\n", 2376 cpuname, 2377 (uint8_t)__SHIFTOUT(descs[0], 2378 CPUID_HYBRID_CORETYPE), 2379 (uint32_t)__SHIFTOUT(descs[0], 2380 CPUID_HYBRID_NATIVEID)); 2381 } 2382 } 2383 } 2384 2385 #ifdef INTEL_ONDEMAND_CLOCKMOD 2386 clockmod_init(); 2387 #endif 2388 2389 if (cpu_vendor == CPUVENDOR_AMD) 2390 ucode.loader_version = CPU_UCODE_LOADER_AMD; 2391 else if (cpu_vendor == CPUVENDOR_INTEL) 2392 ucode.loader_version = CPU_UCODE_LOADER_INTEL1; 2393 else 2394 return; 2395 2396 ucode.data = &ucvers; 2397 if (ioctl(fd, IOC_CPU_UCODE_GET_VERSION, &ucode) < 0) { 2398 #ifdef __i386__ 2399 struct cpu_ucode_version_64 ucode_64; 2400 if (errno != ENOTTY) 2401 return; 2402 /* Try the 64 bit ioctl */ 2403 memset(&ucode_64, 0, sizeof ucode_64); 2404 ucode_64.data = &ucvers; 2405 ucode_64.loader_version = ucode.loader_version; 2406 if (ioctl(fd, IOC_CPU_UCODE_GET_VERSION_64, &ucode_64) < 0) 2407 return; 2408 #else 2409 return; 2410 #endif 2411 } 2412 2413 if (cpu_vendor == CPUVENDOR_AMD) 2414 printf("%s: UCode version: 0x%"PRIx64"\n", cpuname, ucvers.amd.version); 2415 else if (cpu_vendor == CPUVENDOR_INTEL) 2416 printf("%s: microcode version 0x%x, platform ID %d\n", cpuname, 2417 ucvers.intel1.ucodeversion, ucvers.intel1.platformid); 2418 } 2419 2420 static const char * 2421 print_cache_config(struct cpu_info *ci, int cache_tag, const char *name, 2422 const char *sep) 2423 { 2424 struct x86_cache_info *cai = &ci->ci_cinfo[cache_tag]; 2425 char human_num[HUMAN_BUFSIZE]; 2426 2427 if (cai->cai_totalsize == 0) 2428 return sep; 2429 2430 if (sep == NULL) 2431 aprint_verbose_dev(ci->ci_dev, ""); 2432 else 2433 aprint_verbose("%s", sep); 2434 if (name != NULL) 2435 aprint_verbose("%s ", name); 2436 2437 if (cai->cai_string != NULL) { 2438 aprint_verbose("%s ", cai->cai_string); 2439 } else { 2440 (void)humanize_number(human_num, sizeof(human_num), 2441 cai->cai_totalsize, "B", HN_AUTOSCALE, HN_NOSPACE); 2442 aprint_verbose("%s %dB/line ", human_num, cai->cai_linesize); 2443 } 2444 switch (cai->cai_associativity) { 2445 case 0: 2446 aprint_verbose("disabled"); 2447 break; 2448 case 1: 2449 aprint_verbose("direct-mapped"); 2450 break; 2451 case 0xff: 2452 aprint_verbose("fully associative"); 2453 break; 2454 default: 2455 aprint_verbose("%d-way", cai->cai_associativity); 2456 break; 2457 } 2458 return ", "; 2459 } 2460 2461 static const char * 2462 print_tlb_config(struct cpu_info *ci, int cache_tag, const char *name, 2463 const char *sep) 2464 { 2465 struct x86_cache_info *cai = &ci->ci_cinfo[cache_tag]; 2466 char human_num[HUMAN_BUFSIZE]; 2467 2468 if (cai->cai_totalsize == 0) 2469 return sep; 2470 2471 if (sep == NULL) 2472 aprint_verbose_dev(ci->ci_dev, ""); 2473 else 2474 aprint_verbose("%s", sep); 2475 if ((name != NULL) && (sep == NULL)) 2476 aprint_verbose("%s ", name); 2477 2478 if (cai->cai_string != NULL) { 2479 aprint_verbose("%s", cai->cai_string); 2480 } else { 2481 (void)humanize_number(human_num, sizeof(human_num), 2482 cai->cai_linesize, "B", HN_AUTOSCALE, HN_NOSPACE); 2483 aprint_verbose("%d %s entries ", cai->cai_totalsize, 2484 human_num); 2485 switch (cai->cai_associativity) { 2486 case 0: 2487 aprint_verbose("disabled"); 2488 break; 2489 case 1: 2490 aprint_verbose("direct-mapped"); 2491 break; 2492 case 0xff: 2493 aprint_verbose("fully associative"); 2494 break; 2495 default: 2496 aprint_verbose("%d-way", cai->cai_associativity); 2497 break; 2498 } 2499 } 2500 return ", "; 2501 } 2502 2503 static void 2504 x86_print_cache_and_tlb_info(struct cpu_info *ci) 2505 { 2506 const char *sep = NULL; 2507 2508 if (ci->ci_cinfo[CAI_ICACHE].cai_totalsize != 0 || 2509 ci->ci_cinfo[CAI_DCACHE].cai_totalsize != 0) { 2510 sep = print_cache_config(ci, CAI_ICACHE, "I-cache:", NULL); 2511 sep = print_cache_config(ci, CAI_DCACHE, "D-cache:", sep); 2512 if (sep != NULL) 2513 aprint_verbose("\n"); 2514 } 2515 if (ci->ci_cinfo[CAI_L2CACHE].cai_totalsize != 0) { 2516 sep = print_cache_config(ci, CAI_L2CACHE, "L2 cache:", NULL); 2517 if (sep != NULL) 2518 aprint_verbose("\n"); 2519 } 2520 if (ci->ci_cinfo[CAI_L3CACHE].cai_totalsize != 0) { 2521 sep = print_cache_config(ci, CAI_L3CACHE, "L3 cache:", NULL); 2522 if (sep != NULL) 2523 aprint_verbose("\n"); 2524 } 2525 if (ci->ci_cinfo[CAI_PREFETCH].cai_linesize != 0) { 2526 aprint_verbose_dev(ci->ci_dev, "%dB prefetching", 2527 ci->ci_cinfo[CAI_PREFETCH].cai_linesize); 2528 if (sep != NULL) 2529 aprint_verbose("\n"); 2530 } 2531 2532 sep = print_tlb_config(ci, CAI_ITLB, "ITLB:", NULL); 2533 sep = print_tlb_config(ci, CAI_ITLB2, "ITLB:", sep); 2534 sep = print_tlb_config(ci, CAI_L1_1GBITLB, "ITLB:", sep); 2535 if (sep != NULL) 2536 aprint_verbose("\n"); 2537 2538 sep = print_tlb_config(ci, CAI_DTLB, "DTLB:", NULL); 2539 sep = print_tlb_config(ci, CAI_DTLB2, "DTLB:", sep); 2540 sep = print_tlb_config(ci, CAI_L1_1GBDTLB, "DTLB:", sep); 2541 if (sep != NULL) 2542 aprint_verbose("\n"); 2543 2544 sep = print_tlb_config(ci, CAI_L1_LD_TLB, "Load only TLB:", NULL); 2545 if (sep != NULL) 2546 aprint_verbose("\n"); 2547 2548 sep = print_tlb_config(ci, CAI_L1_ST_TLB, "Store only TLB:", NULL); 2549 if (sep != NULL) 2550 aprint_verbose("\n"); 2551 2552 sep = print_tlb_config(ci, CAI_L2_ITLB, "L2 ITLB:", NULL); 2553 sep = print_tlb_config(ci, CAI_L2_ITLB2, "L2 ITLB:", sep); 2554 sep = print_tlb_config(ci, CAI_L2_1GBITLB, "L2 ITLB:", sep); 2555 if (sep != NULL) 2556 aprint_verbose("\n"); 2557 2558 sep = print_tlb_config(ci, CAI_L2_DTLB, "L2 DTLB:", NULL); 2559 sep = print_tlb_config(ci, CAI_L2_DTLB2, "L2 DTLB:", sep); 2560 sep = print_tlb_config(ci, CAI_L2_1GBDTLB, "L2 DTLB:", sep); 2561 if (sep != NULL) 2562 aprint_verbose("\n"); 2563 2564 sep = print_tlb_config(ci, CAI_L2_STLB, "L2 STLB:", NULL); 2565 sep = print_tlb_config(ci, CAI_L2_STLB2, "L2 STLB:", sep); 2566 sep = print_tlb_config(ci, CAI_L2_STLB3, "L2 STLB:", sep); 2567 if (sep != NULL) 2568 aprint_verbose("\n"); 2569 } 2570 2571 static void 2572 powernow_probe(struct cpu_info *ci) 2573 { 2574 uint32_t regs[4]; 2575 char buf[256]; 2576 2577 x86_cpuid(0x80000007, regs); 2578 2579 snprintb(buf, sizeof(buf), CPUID_APM_FLAGS, regs[3]); 2580 aprint_normal_dev(ci->ci_dev, "Power Management features: %s\n", buf); 2581 } 2582 2583 bool 2584 identifycpu_bind(void) 2585 { 2586 2587 return true; 2588 } 2589 2590 int 2591 ucodeupdate_check(int fd, struct cpu_ucode *uc) 2592 { 2593 struct cpu_info ci; 2594 int loader_version, res; 2595 struct cpu_ucode_version versreq; 2596 2597 cpu_probe_base_features(&ci, "unknown"); 2598 2599 if (!strcmp((char *)ci.ci_vendor, "AuthenticAMD")) 2600 loader_version = CPU_UCODE_LOADER_AMD; 2601 else if (!strcmp((char *)ci.ci_vendor, "GenuineIntel")) 2602 loader_version = CPU_UCODE_LOADER_INTEL1; 2603 else 2604 return -1; 2605 2606 /* check whether the kernel understands this loader version */ 2607 versreq.loader_version = loader_version; 2608 versreq.data = 0; 2609 res = ioctl(fd, IOC_CPU_UCODE_GET_VERSION, &versreq); 2610 if (res) 2611 return -1; 2612 2613 switch (loader_version) { 2614 case CPU_UCODE_LOADER_AMD: 2615 if (uc->cpu_nr != -1) { 2616 warnx("ucode updates on AMD can only be done on all CPUs at once"); 2617 return -1; 2618 } 2619 uc->cpu_nr = CPU_UCODE_ALL_CPUS; 2620 break; 2621 case CPU_UCODE_LOADER_INTEL1: 2622 if (uc->cpu_nr == -1) 2623 uc->cpu_nr = CPU_UCODE_ALL_CPUS; /* for Xen */ 2624 else 2625 uc->cpu_nr = CPU_UCODE_CURRENT_CPU; 2626 break; 2627 default: /* can't happen */ 2628 return -1; 2629 } 2630 uc->loader_version = loader_version; 2631 return 0; 2632 } 2633
Indexes created Sun Sep 28 07:09:56 GMT 2025