1 /* 2 * Copyright 1996 Massachusetts Institute of Technology 3 * 4 * Permission to use, copy, modify, and distribute this software and 5 * its documentation for any purpose and without fee is hereby 6 * granted, provided that both the above copyright notice and this 7 * permission notice appear in all copies, that both the above 8 * copyright notice and this permission notice appear in all 9 * supporting documentation, and that the name of M.I.T. not be used 10 * in advertising or publicity pertaining to distribution of the 11 * software without specific, written prior permission. M.I.T. makes 12 * no representations about the suitability of this software for any 13 * purpose. It is provided "as is" without express or implied 14 * warranty. 15 * 16 * THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''. M.I.T. DISCLAIMS 17 * ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE, 18 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 19 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT 20 * SHALL M.I.T. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 23 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 25 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 26 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #ifndef lint 31 static const char rcsid[] = 32 "$FreeBSD$"; 33 #endif /* not lint */ 34 35 #include <sys/types.h> 36 #include <sys/fcntl.h> 37 #include <sys/mman.h> 38 #include <sys/pciio.h> 39 #include <sys/queue.h> 40 41 #include <vm/vm.h> 42 43 #include <dev/pci/pcireg.h> 44 45 #include <assert.h> 46 #include <ctype.h> 47 #include <err.h> 48 #include <inttypes.h> 49 #include <stdbool.h> 50 #include <stdlib.h> 51 #include <stdio.h> 52 #include <string.h> 53 #include <unistd.h> 54 55 #include "pathnames.h" 56 #include "pciconf.h" 57 58 struct pci_device_info 59 { 60 TAILQ_ENTRY(pci_device_info) link; 61 int id; 62 char *desc; 63 }; 64 65 struct pci_vendor_info 66 { 67 TAILQ_ENTRY(pci_vendor_info) link; 68 TAILQ_HEAD(,pci_device_info) devs; 69 int id; 70 char *desc; 71 }; 72 73 static TAILQ_HEAD(,pci_vendor_info) pci_vendors; 74 75 static struct pcisel getsel(const char *str); 76 static void list_bridge(int fd, struct pci_conf *p); 77 static void list_bars(int fd, struct pci_conf *p); 78 static void list_devs(const char *name, int verbose, int bars, int bridge, 79 int caps, int errors, int vpd, int listmode); 80 static void list_verbose(struct pci_conf *p); 81 static void list_vpd(int fd, struct pci_conf *p); 82 static const char *guess_class(struct pci_conf *p); 83 static const char *guess_subclass(struct pci_conf *p); 84 static int load_vendors(void); 85 static void readit(const char *, const char *, int); 86 static void writeit(const char *, const char *, const char *, int); 87 static void chkattached(const char *); 88 static void dump_bar(const char *name, const char *reg, const char *bar_start, 89 const char *bar_count, int width, int verbose); 90 91 static int exitstatus = 0; 92 93 static void 94 usage(void) 95 { 96 97 fprintf(stderr, "%s", 98 "usage: pciconf -l [-BbcevV] [device]\n" 99 " pciconf -a device\n" 100 " pciconf -r [-b | -h] device addr[:addr2]\n" 101 " pciconf -w [-b | -h] device addr value\n" 102 " pciconf -D [-b | -h | -x] device bar [start [count]]" 103 "\n"); 104 exit(1); 105 } 106 107 int 108 main(int argc, char **argv) 109 { 110 int c, width; 111 int listmode, readmode, writemode, attachedmode, dumpbarmode; 112 int bars, bridge, caps, errors, verbose, vpd; 113 114 listmode = readmode = writemode = attachedmode = dumpbarmode = 0; 115 bars = bridge = caps = errors = verbose = vpd= 0; 116 width = 4; 117 118 while ((c = getopt(argc, argv, "aBbcDehlrwVv")) != -1) { 119 switch(c) { 120 case 'a': 121 attachedmode = 1; 122 break; 123 124 case 'B': 125 bridge = 1; 126 break; 127 128 case 'b': 129 bars = 1; 130 width = 1; 131 break; 132 133 case 'c': 134 caps++; 135 break; 136 137 case 'D': 138 dumpbarmode = 1; 139 break; 140 141 case 'e': 142 errors = 1; 143 break; 144 145 case 'h': 146 width = 2; 147 break; 148 149 case 'l': 150 listmode++; 151 break; 152 153 case 'r': 154 readmode = 1; 155 break; 156 157 case 'w': 158 writemode = 1; 159 break; 160 161 case 'v': 162 verbose = 1; 163 break; 164 165 case 'V': 166 vpd = 1; 167 break; 168 169 case 'x': 170 width = 8; 171 break; 172 173 default: 174 usage(); 175 } 176 } 177 178 if ((listmode && optind >= argc + 1) 179 || (writemode && optind + 3 != argc) 180 || (readmode && optind + 2 != argc) 181 || (attachedmode && optind + 1 != argc) 182 || (dumpbarmode && (optind + 2 > argc || optind + 4 < argc)) 183 || (width == 8 && !dumpbarmode)) 184 usage(); 185 186 if (listmode) { 187 list_devs(optind + 1 == argc ? argv[optind] : NULL, verbose, 188 bars, bridge, caps, errors, vpd, listmode); 189 } else if (attachedmode) { 190 chkattached(argv[optind]); 191 } else if (readmode) { 192 readit(argv[optind], argv[optind + 1], width); 193 } else if (writemode) { 194 writeit(argv[optind], argv[optind + 1], argv[optind + 2], 195 width); 196 } else if (dumpbarmode) { 197 dump_bar(argv[optind], argv[optind + 1], 198 optind + 2 < argc ? argv[optind + 2] : NULL, 199 optind + 3 < argc ? argv[optind + 3] : NULL, 200 width, verbose); 201 } else { 202 usage(); 203 } 204 205 return (exitstatus); 206 } 207 208 static void 209 list_devs(const char *name, int verbose, int bars, int bridge, int caps, 210 int errors, int vpd, int listmode) 211 { 212 int fd; 213 struct pci_conf_io pc; 214 struct pci_conf conf[255], *p; 215 struct pci_match_conf patterns[1]; 216 int none_count = 0; 217 218 if (verbose) 219 load_vendors(); 220 221 fd = open(_PATH_DEVPCI, (bridge || caps || errors) ? O_RDWR : O_RDONLY, 222 0); 223 if (fd < 0) 224 err(1, "%s", _PATH_DEVPCI); 225 226 bzero(&pc, sizeof(struct pci_conf_io)); 227 pc.match_buf_len = sizeof(conf); 228 pc.matches = conf; 229 if (name != NULL) { 230 bzero(&patterns, sizeof(patterns)); 231 patterns[0].pc_sel = getsel(name); 232 patterns[0].flags = PCI_GETCONF_MATCH_DOMAIN | 233 PCI_GETCONF_MATCH_BUS | PCI_GETCONF_MATCH_DEV | 234 PCI_GETCONF_MATCH_FUNC; 235 pc.num_patterns = 1; 236 pc.pat_buf_len = sizeof(patterns); 237 pc.patterns = patterns; 238 } 239 240 do { 241 if (ioctl(fd, PCIOCGETCONF, &pc) == -1) 242 err(1, "ioctl(PCIOCGETCONF)"); 243 244 /* 245 * 255 entries should be more than enough for most people, 246 * but if someone has more devices, and then changes things 247 * around between ioctls, we'll do the cheesy thing and 248 * just bail. The alternative would be to go back to the 249 * beginning of the list, and print things twice, which may 250 * not be desirable. 251 */ 252 if (pc.status == PCI_GETCONF_LIST_CHANGED) { 253 warnx("PCI device list changed, please try again"); 254 exitstatus = 1; 255 close(fd); 256 return; 257 } else if (pc.status == PCI_GETCONF_ERROR) { 258 warnx("error returned from PCIOCGETCONF ioctl"); 259 exitstatus = 1; 260 close(fd); 261 return; 262 } 263 if (listmode == 2) 264 printf("drv\tselector\tclass rev hdr " 265 "vendor device subven subdev\n"); 266 for (p = conf; p < &conf[pc.num_matches]; p++) { 267 if (listmode == 2) 268 printf("%s%d@pci%d:%d:%d:%d:" 269 "\t%06x %02x %02x " 270 "%04x %04x %04x %04x\n", 271 *p->pd_name ? p->pd_name : "none", 272 *p->pd_name ? (int)p->pd_unit : 273 none_count++, p->pc_sel.pc_domain, 274 p->pc_sel.pc_bus, p->pc_sel.pc_dev, 275 p->pc_sel.pc_func, (p->pc_class << 16) | 276 (p->pc_subclass << 8) | p->pc_progif, 277 p->pc_revid, p->pc_hdr, 278 p->pc_vendor, p->pc_device, 279 p->pc_subvendor, p->pc_subdevice); 280 else 281 printf("%s%d@pci%d:%d:%d:%d:" 282 "\tclass=0x%06x rev=0x%02x hdr=0x%02x " 283 "vendor=0x%04x device=0x%04x " 284 "subvendor=0x%04x subdevice=0x%04x\n", 285 *p->pd_name ? p->pd_name : "none", 286 *p->pd_name ? (int)p->pd_unit : 287 none_count++, p->pc_sel.pc_domain, 288 p->pc_sel.pc_bus, p->pc_sel.pc_dev, 289 p->pc_sel.pc_func, (p->pc_class << 16) | 290 (p->pc_subclass << 8) | p->pc_progif, 291 p->pc_revid, p->pc_hdr, 292 p->pc_vendor, p->pc_device, 293 p->pc_subvendor, p->pc_subdevice); 294 if (verbose) 295 list_verbose(p); 296 if (bars) 297 list_bars(fd, p); 298 if (bridge) 299 list_bridge(fd, p); 300 if (caps) 301 list_caps(fd, p, caps); 302 if (errors) 303 list_errors(fd, p); 304 if (vpd) 305 list_vpd(fd, p); 306 } 307 } while (pc.status == PCI_GETCONF_MORE_DEVS); 308 309 close(fd); 310 } 311 312 static void 313 print_bus_range(int fd, struct pci_conf *p, int secreg, int subreg) 314 { 315 uint8_t secbus, subbus; 316 317 secbus = read_config(fd, &p->pc_sel, secreg, 1); 318 subbus = read_config(fd, &p->pc_sel, subreg, 1); 319 printf(" bus range = %u-%u\n", secbus, subbus); 320 } 321 322 static void 323 print_window(int reg, const char *type, int range, uint64_t base, 324 uint64_t limit) 325 { 326 327 printf(" window[%02x] = type %s, range %2d, addr %#jx-%#jx, %s\n", 328 reg, type, range, (uintmax_t)base, (uintmax_t)limit, 329 base < limit ? "enabled" : "disabled"); 330 } 331 332 static void 333 print_special_decode(bool isa, bool vga, bool subtractive) 334 { 335 bool comma; 336 337 if (isa || vga || subtractive) { 338 comma = false; 339 printf(" decode = "); 340 if (isa) { 341 printf("ISA"); 342 comma = true; 343 } 344 if (vga) { 345 printf("%sVGA", comma ? ", " : ""); 346 comma = true; 347 } 348 if (subtractive) 349 printf("%ssubtractive", comma ? ", " : ""); 350 printf("\n"); 351 } 352 } 353 354 static void 355 print_bridge_windows(int fd, struct pci_conf *p) 356 { 357 uint64_t base, limit; 358 uint32_t val; 359 uint16_t bctl; 360 bool subtractive; 361 int range; 362 363 /* 364 * XXX: This assumes that a window with a base and limit of 0 365 * is not implemented. In theory a window might be programmed 366 * at the smallest size with a base of 0, but those do not seem 367 * common in practice. 368 */ 369 val = read_config(fd, &p->pc_sel, PCIR_IOBASEL_1, 1); 370 if (val != 0 || read_config(fd, &p->pc_sel, PCIR_IOLIMITL_1, 1) != 0) { 371 if ((val & PCIM_BRIO_MASK) == PCIM_BRIO_32) { 372 base = PCI_PPBIOBASE( 373 read_config(fd, &p->pc_sel, PCIR_IOBASEH_1, 2), 374 val); 375 limit = PCI_PPBIOLIMIT( 376 read_config(fd, &p->pc_sel, PCIR_IOLIMITH_1, 2), 377 read_config(fd, &p->pc_sel, PCIR_IOLIMITL_1, 1)); 378 range = 32; 379 } else { 380 base = PCI_PPBIOBASE(0, val); 381 limit = PCI_PPBIOLIMIT(0, 382 read_config(fd, &p->pc_sel, PCIR_IOLIMITL_1, 1)); 383 range = 16; 384 } 385 print_window(PCIR_IOBASEL_1, "I/O Port", range, base, limit); 386 } 387 388 base = PCI_PPBMEMBASE(0, 389 read_config(fd, &p->pc_sel, PCIR_MEMBASE_1, 2)); 390 limit = PCI_PPBMEMLIMIT(0, 391 read_config(fd, &p->pc_sel, PCIR_MEMLIMIT_1, 2)); 392 print_window(PCIR_MEMBASE_1, "Memory", 32, base, limit); 393 394 val = read_config(fd, &p->pc_sel, PCIR_PMBASEL_1, 2); 395 if (val != 0 || read_config(fd, &p->pc_sel, PCIR_PMLIMITL_1, 2) != 0) { 396 if ((val & PCIM_BRPM_MASK) == PCIM_BRPM_64) { 397 base = PCI_PPBMEMBASE( 398 read_config(fd, &p->pc_sel, PCIR_PMBASEH_1, 4), 399 val); 400 limit = PCI_PPBMEMLIMIT( 401 read_config(fd, &p->pc_sel, PCIR_PMLIMITH_1, 4), 402 read_config(fd, &p->pc_sel, PCIR_PMLIMITL_1, 2)); 403 range = 64; 404 } else { 405 base = PCI_PPBMEMBASE(0, val); 406 limit = PCI_PPBMEMLIMIT(0, 407 read_config(fd, &p->pc_sel, PCIR_PMLIMITL_1, 2)); 408 range = 32; 409 } 410 print_window(PCIR_PMBASEL_1, "Prefetchable Memory", range, base, 411 limit); 412 } 413 414 /* 415 * XXX: This list of bridges that are subtractive but do not set 416 * progif to indicate it is copied from pci_pci.c. 417 */ 418 subtractive = p->pc_progif == PCIP_BRIDGE_PCI_SUBTRACTIVE; 419 switch (p->pc_device << 16 | p->pc_vendor) { 420 case 0xa002177d: /* Cavium ThunderX */ 421 case 0x124b8086: /* Intel 82380FB Mobile */ 422 case 0x060513d7: /* Toshiba ???? */ 423 subtractive = true; 424 } 425 if (p->pc_vendor == 0x8086 && (p->pc_device & 0xff00) == 0x2400) 426 subtractive = true; 427 428 bctl = read_config(fd, &p->pc_sel, PCIR_BRIDGECTL_1, 2); 429 print_special_decode(bctl & PCIB_BCR_ISA_ENABLE, 430 bctl & PCIB_BCR_VGA_ENABLE, subtractive); 431 } 432 433 static void 434 print_cardbus_mem_window(int fd, struct pci_conf *p, int basereg, int limitreg, 435 bool prefetch) 436 { 437 438 print_window(basereg, prefetch ? "Prefetchable Memory" : "Memory", 32, 439 PCI_CBBMEMBASE(read_config(fd, &p->pc_sel, basereg, 4)), 440 PCI_CBBMEMLIMIT(read_config(fd, &p->pc_sel, limitreg, 4))); 441 } 442 443 static void 444 print_cardbus_io_window(int fd, struct pci_conf *p, int basereg, int limitreg) 445 { 446 uint32_t base, limit; 447 uint32_t val; 448 int range; 449 450 val = read_config(fd, &p->pc_sel, basereg, 2); 451 if ((val & PCIM_CBBIO_MASK) == PCIM_CBBIO_32) { 452 base = PCI_CBBIOBASE(read_config(fd, &p->pc_sel, basereg, 4)); 453 limit = PCI_CBBIOBASE(read_config(fd, &p->pc_sel, limitreg, 4)); 454 range = 32; 455 } else { 456 base = PCI_CBBIOBASE(val); 457 limit = PCI_CBBIOBASE(read_config(fd, &p->pc_sel, limitreg, 2)); 458 range = 16; 459 } 460 print_window(basereg, "I/O Port", range, base, limit); 461 } 462 463 static void 464 print_cardbus_windows(int fd, struct pci_conf *p) 465 { 466 uint16_t bctl; 467 468 bctl = read_config(fd, &p->pc_sel, PCIR_BRIDGECTL_2, 2); 469 print_cardbus_mem_window(fd, p, PCIR_MEMBASE0_2, PCIR_MEMLIMIT0_2, 470 bctl & CBB_BCR_PREFETCH_0_ENABLE); 471 print_cardbus_mem_window(fd, p, PCIR_MEMBASE1_2, PCIR_MEMLIMIT1_2, 472 bctl & CBB_BCR_PREFETCH_1_ENABLE); 473 print_cardbus_io_window(fd, p, PCIR_IOBASE0_2, PCIR_IOLIMIT0_2); 474 print_cardbus_io_window(fd, p, PCIR_IOBASE1_2, PCIR_IOLIMIT1_2); 475 print_special_decode(bctl & CBB_BCR_ISA_ENABLE, 476 bctl & CBB_BCR_VGA_ENABLE, false); 477 } 478 479 static void 480 list_bridge(int fd, struct pci_conf *p) 481 { 482 483 switch (p->pc_hdr & PCIM_HDRTYPE) { 484 case PCIM_HDRTYPE_BRIDGE: 485 print_bus_range(fd, p, PCIR_SECBUS_1, PCIR_SUBBUS_1); 486 print_bridge_windows(fd, p); 487 break; 488 case PCIM_HDRTYPE_CARDBUS: 489 print_bus_range(fd, p, PCIR_SECBUS_2, PCIR_SUBBUS_2); 490 print_cardbus_windows(fd, p); 491 break; 492 } 493 } 494 495 static void 496 list_bars(int fd, struct pci_conf *p) 497 { 498 int i, max; 499 500 switch (p->pc_hdr & PCIM_HDRTYPE) { 501 case PCIM_HDRTYPE_NORMAL: 502 max = PCIR_MAX_BAR_0; 503 break; 504 case PCIM_HDRTYPE_BRIDGE: 505 max = PCIR_MAX_BAR_1; 506 break; 507 case PCIM_HDRTYPE_CARDBUS: 508 max = PCIR_MAX_BAR_2; 509 break; 510 default: 511 return; 512 } 513 514 for (i = 0; i <= max; i++) 515 print_bar(fd, p, "bar ", PCIR_BAR(i)); 516 } 517 518 void 519 print_bar(int fd, struct pci_conf *p, const char *label, uint16_t bar_offset) 520 { 521 uint64_t base; 522 const char *type; 523 struct pci_bar_io bar; 524 int range; 525 526 bar.pbi_sel = p->pc_sel; 527 bar.pbi_reg = bar_offset; 528 if (ioctl(fd, PCIOCGETBAR, &bar) < 0) 529 return; 530 if (PCI_BAR_IO(bar.pbi_base)) { 531 type = "I/O Port"; 532 range = 32; 533 base = bar.pbi_base & PCIM_BAR_IO_BASE; 534 } else { 535 if (bar.pbi_base & PCIM_BAR_MEM_PREFETCH) 536 type = "Prefetchable Memory"; 537 else 538 type = "Memory"; 539 switch (bar.pbi_base & PCIM_BAR_MEM_TYPE) { 540 case PCIM_BAR_MEM_32: 541 range = 32; 542 break; 543 case PCIM_BAR_MEM_1MB: 544 range = 20; 545 break; 546 case PCIM_BAR_MEM_64: 547 range = 64; 548 break; 549 default: 550 range = -1; 551 } 552 base = bar.pbi_base & ~((uint64_t)0xf); 553 } 554 printf(" %s[%02x] = type %s, range %2d, base %#jx, ", 555 label, bar_offset, type, range, (uintmax_t)base); 556 printf("size %ju, %s\n", (uintmax_t)bar.pbi_length, 557 bar.pbi_enabled ? "enabled" : "disabled"); 558 } 559 560 static void 561 list_verbose(struct pci_conf *p) 562 { 563 struct pci_vendor_info *vi; 564 struct pci_device_info *di; 565 const char *dp; 566 567 TAILQ_FOREACH(vi, &pci_vendors, link) { 568 if (vi->id == p->pc_vendor) { 569 printf(" vendor = '%s'\n", vi->desc); 570 break; 571 } 572 } 573 if (vi == NULL) { 574 di = NULL; 575 } else { 576 TAILQ_FOREACH(di, &vi->devs, link) { 577 if (di->id == p->pc_device) { 578 printf(" device = '%s'\n", di->desc); 579 break; 580 } 581 } 582 } 583 if ((dp = guess_class(p)) != NULL) 584 printf(" class = %s\n", dp); 585 if ((dp = guess_subclass(p)) != NULL) 586 printf(" subclass = %s\n", dp); 587 } 588 589 static void 590 list_vpd(int fd, struct pci_conf *p) 591 { 592 struct pci_list_vpd_io list; 593 struct pci_vpd_element *vpd, *end; 594 595 list.plvi_sel = p->pc_sel; 596 list.plvi_len = 0; 597 list.plvi_data = NULL; 598 if (ioctl(fd, PCIOCLISTVPD, &list) < 0 || list.plvi_len == 0) 599 return; 600 601 list.plvi_data = malloc(list.plvi_len); 602 if (ioctl(fd, PCIOCLISTVPD, &list) < 0) { 603 free(list.plvi_data); 604 return; 605 } 606 607 vpd = list.plvi_data; 608 end = (struct pci_vpd_element *)((char *)vpd + list.plvi_len); 609 for (; vpd < end; vpd = PVE_NEXT(vpd)) { 610 if (vpd->pve_flags == PVE_FLAG_IDENT) { 611 printf(" VPD ident = '%.*s'\n", 612 (int)vpd->pve_datalen, vpd->pve_data); 613 continue; 614 } 615 616 /* Ignore the checksum keyword. */ 617 if (!(vpd->pve_flags & PVE_FLAG_RW) && 618 memcmp(vpd->pve_keyword, "RV", 2) == 0) 619 continue; 620 621 /* Ignore remaining read-write space. */ 622 if (vpd->pve_flags & PVE_FLAG_RW && 623 memcmp(vpd->pve_keyword, "RW", 2) == 0) 624 continue; 625 626 /* Handle extended capability keyword. */ 627 if (!(vpd->pve_flags & PVE_FLAG_RW) && 628 memcmp(vpd->pve_keyword, "CP", 2) == 0) { 629 printf(" VPD ro CP = ID %02x in map 0x%x[0x%x]\n", 630 (unsigned int)vpd->pve_data[0], 631 PCIR_BAR((unsigned int)vpd->pve_data[1]), 632 (unsigned int)vpd->pve_data[3] << 8 | 633 (unsigned int)vpd->pve_data[2]); 634 continue; 635 } 636 637 /* Remaining keywords should all have ASCII values. */ 638 printf(" VPD %s %c%c = '%.*s'\n", 639 vpd->pve_flags & PVE_FLAG_RW ? "rw" : "ro", 640 vpd->pve_keyword[0], vpd->pve_keyword[1], 641 (int)vpd->pve_datalen, vpd->pve_data); 642 } 643 free(list.plvi_data); 644 } 645 646 /* 647 * This is a direct cut-and-paste from the table in sys/dev/pci/pci.c. 648 */ 649 static struct 650 { 651 int class; 652 int subclass; 653 const char *desc; 654 } pci_nomatch_tab[] = { 655 {PCIC_OLD, -1, "old"}, 656 {PCIC_OLD, PCIS_OLD_NONVGA, "non-VGA display device"}, 657 {PCIC_OLD, PCIS_OLD_VGA, "VGA-compatible display device"}, 658 {PCIC_STORAGE, -1, "mass storage"}, 659 {PCIC_STORAGE, PCIS_STORAGE_SCSI, "SCSI"}, 660 {PCIC_STORAGE, PCIS_STORAGE_IDE, "ATA"}, 661 {PCIC_STORAGE, PCIS_STORAGE_FLOPPY, "floppy disk"}, 662 {PCIC_STORAGE, PCIS_STORAGE_IPI, "IPI"}, 663 {PCIC_STORAGE, PCIS_STORAGE_RAID, "RAID"}, 664 {PCIC_STORAGE, PCIS_STORAGE_ATA_ADMA, "ATA (ADMA)"}, 665 {PCIC_STORAGE, PCIS_STORAGE_SATA, "SATA"}, 666 {PCIC_STORAGE, PCIS_STORAGE_SAS, "SAS"}, 667 {PCIC_STORAGE, PCIS_STORAGE_NVM, "NVM"}, 668 {PCIC_NETWORK, -1, "network"}, 669 {PCIC_NETWORK, PCIS_NETWORK_ETHERNET, "ethernet"}, 670 {PCIC_NETWORK, PCIS_NETWORK_TOKENRING, "token ring"}, 671 {PCIC_NETWORK, PCIS_NETWORK_FDDI, "fddi"}, 672 {PCIC_NETWORK, PCIS_NETWORK_ATM, "ATM"}, 673 {PCIC_NETWORK, PCIS_NETWORK_ISDN, "ISDN"}, 674 {PCIC_DISPLAY, -1, "display"}, 675 {PCIC_DISPLAY, PCIS_DISPLAY_VGA, "VGA"}, 676 {PCIC_DISPLAY, PCIS_DISPLAY_XGA, "XGA"}, 677 {PCIC_DISPLAY, PCIS_DISPLAY_3D, "3D"}, 678 {PCIC_MULTIMEDIA, -1, "multimedia"}, 679 {PCIC_MULTIMEDIA, PCIS_MULTIMEDIA_VIDEO, "video"}, 680 {PCIC_MULTIMEDIA, PCIS_MULTIMEDIA_AUDIO, "audio"}, 681 {PCIC_MULTIMEDIA, PCIS_MULTIMEDIA_TELE, "telephony"}, 682 {PCIC_MULTIMEDIA, PCIS_MULTIMEDIA_HDA, "HDA"}, 683 {PCIC_MEMORY, -1, "memory"}, 684 {PCIC_MEMORY, PCIS_MEMORY_RAM, "RAM"}, 685 {PCIC_MEMORY, PCIS_MEMORY_FLASH, "flash"}, 686 {PCIC_BRIDGE, -1, "bridge"}, 687 {PCIC_BRIDGE, PCIS_BRIDGE_HOST, "HOST-PCI"}, 688 {PCIC_BRIDGE, PCIS_BRIDGE_ISA, "PCI-ISA"}, 689 {PCIC_BRIDGE, PCIS_BRIDGE_EISA, "PCI-EISA"}, 690 {PCIC_BRIDGE, PCIS_BRIDGE_MCA, "PCI-MCA"}, 691 {PCIC_BRIDGE, PCIS_BRIDGE_PCI, "PCI-PCI"}, 692 {PCIC_BRIDGE, PCIS_BRIDGE_PCMCIA, "PCI-PCMCIA"}, 693 {PCIC_BRIDGE, PCIS_BRIDGE_NUBUS, "PCI-NuBus"}, 694 {PCIC_BRIDGE, PCIS_BRIDGE_CARDBUS, "PCI-CardBus"}, 695 {PCIC_BRIDGE, PCIS_BRIDGE_RACEWAY, "PCI-RACEway"}, 696 {PCIC_SIMPLECOMM, -1, "simple comms"}, 697 {PCIC_SIMPLECOMM, PCIS_SIMPLECOMM_UART, "UART"}, /* could detect 16550 */ 698 {PCIC_SIMPLECOMM, PCIS_SIMPLECOMM_PAR, "parallel port"}, 699 {PCIC_SIMPLECOMM, PCIS_SIMPLECOMM_MULSER, "multiport serial"}, 700 {PCIC_SIMPLECOMM, PCIS_SIMPLECOMM_MODEM, "generic modem"}, 701 {PCIC_BASEPERIPH, -1, "base peripheral"}, 702 {PCIC_BASEPERIPH, PCIS_BASEPERIPH_PIC, "interrupt controller"}, 703 {PCIC_BASEPERIPH, PCIS_BASEPERIPH_DMA, "DMA controller"}, 704 {PCIC_BASEPERIPH, PCIS_BASEPERIPH_TIMER, "timer"}, 705 {PCIC_BASEPERIPH, PCIS_BASEPERIPH_RTC, "realtime clock"}, 706 {PCIC_BASEPERIPH, PCIS_BASEPERIPH_PCIHOT, "PCI hot-plug controller"}, 707 {PCIC_BASEPERIPH, PCIS_BASEPERIPH_SDHC, "SD host controller"}, 708 {PCIC_BASEPERIPH, PCIS_BASEPERIPH_IOMMU, "IOMMU"}, 709 {PCIC_INPUTDEV, -1, "input device"}, 710 {PCIC_INPUTDEV, PCIS_INPUTDEV_KEYBOARD, "keyboard"}, 711 {PCIC_INPUTDEV, PCIS_INPUTDEV_DIGITIZER,"digitizer"}, 712 {PCIC_INPUTDEV, PCIS_INPUTDEV_MOUSE, "mouse"}, 713 {PCIC_INPUTDEV, PCIS_INPUTDEV_SCANNER, "scanner"}, 714 {PCIC_INPUTDEV, PCIS_INPUTDEV_GAMEPORT, "gameport"}, 715 {PCIC_DOCKING, -1, "docking station"}, 716 {PCIC_PROCESSOR, -1, "processor"}, 717 {PCIC_SERIALBUS, -1, "serial bus"}, 718 {PCIC_SERIALBUS, PCIS_SERIALBUS_FW, "FireWire"}, 719 {PCIC_SERIALBUS, PCIS_SERIALBUS_ACCESS, "AccessBus"}, 720 {PCIC_SERIALBUS, PCIS_SERIALBUS_SSA, "SSA"}, 721 {PCIC_SERIALBUS, PCIS_SERIALBUS_USB, "USB"}, 722 {PCIC_SERIALBUS, PCIS_SERIALBUS_FC, "Fibre Channel"}, 723 {PCIC_SERIALBUS, PCIS_SERIALBUS_SMBUS, "SMBus"}, 724 {PCIC_WIRELESS, -1, "wireless controller"}, 725 {PCIC_WIRELESS, PCIS_WIRELESS_IRDA, "iRDA"}, 726 {PCIC_WIRELESS, PCIS_WIRELESS_IR, "IR"}, 727 {PCIC_WIRELESS, PCIS_WIRELESS_RF, "RF"}, 728 {PCIC_INTELLIIO, -1, "intelligent I/O controller"}, 729 {PCIC_INTELLIIO, PCIS_INTELLIIO_I2O, "I2O"}, 730 {PCIC_SATCOM, -1, "satellite communication"}, 731 {PCIC_SATCOM, PCIS_SATCOM_TV, "sat TV"}, 732 {PCIC_SATCOM, PCIS_SATCOM_AUDIO, "sat audio"}, 733 {PCIC_SATCOM, PCIS_SATCOM_VOICE, "sat voice"}, 734 {PCIC_SATCOM, PCIS_SATCOM_DATA, "sat data"}, 735 {PCIC_CRYPTO, -1, "encrypt/decrypt"}, 736 {PCIC_CRYPTO, PCIS_CRYPTO_NETCOMP, "network/computer crypto"}, 737 {PCIC_CRYPTO, PCIS_CRYPTO_NETCOMP, "entertainment crypto"}, 738 {PCIC_DASP, -1, "dasp"}, 739 {PCIC_DASP, PCIS_DASP_DPIO, "DPIO module"}, 740 {PCIC_DASP, PCIS_DASP_PERFCNTRS, "performance counters"}, 741 {PCIC_DASP, PCIS_DASP_COMM_SYNC, "communication synchronizer"}, 742 {PCIC_DASP, PCIS_DASP_MGMT_CARD, "signal processing management"}, 743 {PCIC_ACCEL, -1, "processing accelerators"}, 744 {PCIC_ACCEL, PCIS_ACCEL_PROCESSING, "processing accelerators"}, 745 {PCIC_INSTRUMENT, -1, "non-essential instrumentation"}, 746 {0, 0, NULL} 747 }; 748 749 static const char * 750 guess_class(struct pci_conf *p) 751 { 752 int i; 753 754 for (i = 0; pci_nomatch_tab[i].desc != NULL; i++) { 755 if (pci_nomatch_tab[i].class == p->pc_class) 756 return(pci_nomatch_tab[i].desc); 757 } 758 return(NULL); 759 } 760 761 static const char * 762 guess_subclass(struct pci_conf *p) 763 { 764 int i; 765 766 for (i = 0; pci_nomatch_tab[i].desc != NULL; i++) { 767 if ((pci_nomatch_tab[i].class == p->pc_class) && 768 (pci_nomatch_tab[i].subclass == p->pc_subclass)) 769 return(pci_nomatch_tab[i].desc); 770 } 771 return(NULL); 772 } 773 774 static int 775 load_vendors(void) 776 { 777 const char *dbf; 778 FILE *db; 779 struct pci_vendor_info *cv; 780 struct pci_device_info *cd; 781 char buf[1024], str[1024]; 782 char *ch; 783 int id, error; 784 785 /* 786 * Locate the database and initialise. 787 */ 788 TAILQ_INIT(&pci_vendors); 789 if ((dbf = getenv("PCICONF_VENDOR_DATABASE")) == NULL) 790 dbf = _PATH_LPCIVDB; 791 if ((db = fopen(dbf, "r")) == NULL) { 792 dbf = _PATH_PCIVDB; 793 if ((db = fopen(dbf, "r")) == NULL) 794 return(1); 795 } 796 cv = NULL; 797 cd = NULL; 798 error = 0; 799 800 /* 801 * Scan input lines from the database 802 */ 803 for (;;) { 804 if (fgets(buf, sizeof(buf), db) == NULL) 805 break; 806 807 if ((ch = strchr(buf, '#')) != NULL) 808 *ch = '\0'; 809 ch = strchr(buf, '\0') - 1; 810 while (ch > buf && isspace(*ch)) 811 *ch-- = '\0'; 812 if (ch <= buf) 813 continue; 814 815 /* Can't handle subvendor / subdevice entries yet */ 816 if (buf[0] == '\t' && buf[1] == '\t') 817 continue; 818 819 /* Check for vendor entry */ 820 if (buf[0] != '\t' && sscanf(buf, "%04x %[^\n]", &id, str) == 2) { 821 if ((id == 0) || (strlen(str) < 1)) 822 continue; 823 if ((cv = malloc(sizeof(struct pci_vendor_info))) == NULL) { 824 warn("allocating vendor entry"); 825 error = 1; 826 break; 827 } 828 if ((cv->desc = strdup(str)) == NULL) { 829 free(cv); 830 warn("allocating vendor description"); 831 error = 1; 832 break; 833 } 834 cv->id = id; 835 TAILQ_INIT(&cv->devs); 836 TAILQ_INSERT_TAIL(&pci_vendors, cv, link); 837 continue; 838 } 839 840 /* Check for device entry */ 841 if (buf[0] == '\t' && sscanf(buf + 1, "%04x %[^\n]", &id, str) == 2) { 842 if ((id == 0) || (strlen(str) < 1)) 843 continue; 844 if (cv == NULL) { 845 warnx("device entry with no vendor!"); 846 continue; 847 } 848 if ((cd = malloc(sizeof(struct pci_device_info))) == NULL) { 849 warn("allocating device entry"); 850 error = 1; 851 break; 852 } 853 if ((cd->desc = strdup(str)) == NULL) { 854 free(cd); 855 warn("allocating device description"); 856 error = 1; 857 break; 858 } 859 cd->id = id; 860 TAILQ_INSERT_TAIL(&cv->devs, cd, link); 861 continue; 862 } 863 864 /* It's a comment or junk, ignore it */ 865 } 866 if (ferror(db)) 867 error = 1; 868 fclose(db); 869 870 return(error); 871 } 872 873 uint32_t 874 read_config(int fd, struct pcisel *sel, long reg, int width) 875 { 876 struct pci_io pi; 877 878 pi.pi_sel = *sel; 879 pi.pi_reg = reg; 880 pi.pi_width = width; 881 882 if (ioctl(fd, PCIOCREAD, &pi) < 0) 883 err(1, "ioctl(PCIOCREAD)"); 884 885 return (pi.pi_data); 886 } 887 888 static struct pcisel 889 getdevice(const char *name) 890 { 891 struct pci_conf_io pc; 892 struct pci_conf conf[1]; 893 struct pci_match_conf patterns[1]; 894 char *cp; 895 int fd; 896 897 fd = open(_PATH_DEVPCI, O_RDONLY, 0); 898 if (fd < 0) 899 err(1, "%s", _PATH_DEVPCI); 900 901 bzero(&pc, sizeof(struct pci_conf_io)); 902 pc.match_buf_len = sizeof(conf); 903 pc.matches = conf; 904 905 bzero(&patterns, sizeof(patterns)); 906 907 /* 908 * The pattern structure requires the unit to be split out from 909 * the driver name. Walk backwards from the end of the name to 910 * find the start of the unit. 911 */ 912 if (name[0] == '\0') 913 errx(1, "Empty device name"); 914 cp = strchr(name, '\0'); 915 assert(cp != NULL && cp != name); 916 cp--; 917 while (cp != name && isdigit(cp[-1])) 918 cp--; 919 if (cp == name || !isdigit(*cp)) 920 errx(1, "Invalid device name"); 921 if ((size_t)(cp - name) + 1 > sizeof(patterns[0].pd_name)) 922 errx(1, "Device name is too long"); 923 memcpy(patterns[0].pd_name, name, cp - name); 924 patterns[0].pd_unit = strtol(cp, &cp, 10); 925 if (*cp != '\0') 926 errx(1, "Invalid device name"); 927 patterns[0].flags = PCI_GETCONF_MATCH_NAME | PCI_GETCONF_MATCH_UNIT; 928 pc.num_patterns = 1; 929 pc.pat_buf_len = sizeof(patterns); 930 pc.patterns = patterns; 931 932 if (ioctl(fd, PCIOCGETCONF, &pc) == -1) 933 err(1, "ioctl(PCIOCGETCONF)"); 934 if (pc.status != PCI_GETCONF_LAST_DEVICE && 935 pc.status != PCI_GETCONF_MORE_DEVS) 936 errx(1, "error returned from PCIOCGETCONF ioctl"); 937 close(fd); 938 if (pc.num_matches == 0) 939 errx(1, "Device not found"); 940 return (conf[0].pc_sel); 941 } 942 943 static struct pcisel 944 parsesel(const char *str) 945 { 946 const char *ep; 947 char *eppos; 948 struct pcisel sel; 949 unsigned long selarr[4]; 950 int i; 951 952 ep = strchr(str, '@'); 953 if (ep != NULL) 954 ep++; 955 else 956 ep = str; 957 958 if (strncmp(ep, "pci", 3) == 0) { 959 ep += 3; 960 i = 0; 961 while (isdigit(*ep) && i < 4) { 962 selarr[i++] = strtoul(ep, &eppos, 10); 963 ep = eppos; 964 if (*ep == ':') 965 ep++; 966 } 967 if (i > 0 && *ep == '\0') { 968 sel.pc_func = (i > 2) ? selarr[--i] : 0; 969 sel.pc_dev = (i > 0) ? selarr[--i] : 0; 970 sel.pc_bus = (i > 0) ? selarr[--i] : 0; 971 sel.pc_domain = (i > 0) ? selarr[--i] : 0; 972 return (sel); 973 } 974 } 975 errx(1, "cannot parse selector %s", str); 976 } 977 978 static struct pcisel 979 getsel(const char *str) 980 { 981 982 /* 983 * No device names contain colons and selectors always contain 984 * at least one colon. 985 */ 986 if (strchr(str, ':') == NULL) 987 return (getdevice(str)); 988 else 989 return (parsesel(str)); 990 } 991 992 static void 993 readone(int fd, struct pcisel *sel, long reg, int width) 994 { 995 996 printf("%0*x", width*2, read_config(fd, sel, reg, width)); 997 } 998 999 static void 1000 readit(const char *name, const char *reg, int width) 1001 { 1002 long rstart; 1003 long rend; 1004 long r; 1005 char *end; 1006 int i; 1007 int fd; 1008 struct pcisel sel; 1009 1010 fd = open(_PATH_DEVPCI, O_RDWR, 0); 1011 if (fd < 0) 1012 err(1, "%s", _PATH_DEVPCI); 1013 1014 rend = rstart = strtol(reg, &end, 0); 1015 if (end && *end == ':') { 1016 end++; 1017 rend = strtol(end, (char **) 0, 0); 1018 } 1019 sel = getsel(name); 1020 for (i = 1, r = rstart; r <= rend; i++, r += width) { 1021 readone(fd, &sel, r, width); 1022 if (i && !(i % 8)) 1023 putchar(' '); 1024 putchar(i % (16/width) ? ' ' : '\n'); 1025 } 1026 if (i % (16/width) != 1) 1027 putchar('\n'); 1028 close(fd); 1029 } 1030 1031 static void 1032 writeit(const char *name, const char *reg, const char *data, int width) 1033 { 1034 int fd; 1035 struct pci_io pi; 1036 1037 pi.pi_sel = getsel(name); 1038 pi.pi_reg = strtoul(reg, (char **)0, 0); /* XXX error check */ 1039 pi.pi_width = width; 1040 pi.pi_data = strtoul(data, (char **)0, 0); /* XXX error check */ 1041 1042 fd = open(_PATH_DEVPCI, O_RDWR, 0); 1043 if (fd < 0) 1044 err(1, "%s", _PATH_DEVPCI); 1045 1046 if (ioctl(fd, PCIOCWRITE, &pi) < 0) 1047 err(1, "ioctl(PCIOCWRITE)"); 1048 close(fd); 1049 } 1050 1051 static void 1052 chkattached(const char *name) 1053 { 1054 int fd; 1055 struct pci_io pi; 1056 1057 pi.pi_sel = getsel(name); 1058 1059 fd = open(_PATH_DEVPCI, O_RDWR, 0); 1060 if (fd < 0) 1061 err(1, "%s", _PATH_DEVPCI); 1062 1063 if (ioctl(fd, PCIOCATTACHED, &pi) < 0) 1064 err(1, "ioctl(PCIOCATTACHED)"); 1065 1066 exitstatus = pi.pi_data ? 0 : 2; /* exit(2), if NOT attached */ 1067 printf("%s: %s%s\n", name, pi.pi_data == 0 ? "not " : "", "attached"); 1068 close(fd); 1069 } 1070 1071 static void 1072 dump_bar(const char *name, const char *reg, const char *bar_start, 1073 const char *bar_count, int width, int verbose) 1074 { 1075 struct pci_bar_mmap pbm; 1076 uint32_t *dd; 1077 uint16_t *dh; 1078 uint8_t *db; 1079 uint64_t *dx, a, start, count; 1080 char *el; 1081 size_t res; 1082 int fd; 1083 1084 start = 0; 1085 if (bar_start != NULL) { 1086 start = strtoul(bar_start, &el, 0); 1087 if (*el != '\0') 1088 errx(1, "Invalid bar start specification %s", 1089 bar_start); 1090 } 1091 count = 0; 1092 if (bar_count != NULL) { 1093 count = strtoul(bar_count, &el, 0); 1094 if (*el != '\0') 1095 errx(1, "Invalid count specification %s", 1096 bar_count); 1097 } 1098 1099 pbm.pbm_sel = getsel(name); 1100 pbm.pbm_reg = strtoul(reg, &el, 0); 1101 if (*reg == '\0' || *el != '\0') 1102 errx(1, "Invalid bar specification %s", reg); 1103 pbm.pbm_flags = 0; 1104 pbm.pbm_memattr = VM_MEMATTR_UNCACHEABLE; /* XXX */ 1105 1106 fd = open(_PATH_DEVPCI, O_RDWR, 0); 1107 if (fd < 0) 1108 err(1, "%s", _PATH_DEVPCI); 1109 1110 if (ioctl(fd, PCIOCBARMMAP, &pbm) < 0) 1111 err(1, "ioctl(PCIOCBARMMAP)"); 1112 1113 if (count == 0) 1114 count = pbm.pbm_bar_length / width; 1115 if (start + count < start || (start + count) * width < (uint64_t)width) 1116 errx(1, "(start + count) x width overflow"); 1117 if ((start + count) * width > pbm.pbm_bar_length) { 1118 if (start * width > pbm.pbm_bar_length) 1119 count = 0; 1120 else 1121 count = (pbm.pbm_bar_length - start * width) / width; 1122 } 1123 if (verbose) { 1124 fprintf(stderr, 1125 "Dumping pci%d:%d:%d:%d BAR %x mapped base %p " 1126 "off %#x length %#jx from %#jx count %#jx in %d-bytes\n", 1127 pbm.pbm_sel.pc_domain, pbm.pbm_sel.pc_bus, 1128 pbm.pbm_sel.pc_dev, pbm.pbm_sel.pc_func, 1129 pbm.pbm_reg, pbm.pbm_map_base, pbm.pbm_bar_off, 1130 pbm.pbm_bar_length, start, count, width); 1131 } 1132 switch (width) { 1133 case 1: 1134 db = (uint8_t *)(uintptr_t)((uintptr_t)pbm.pbm_map_base + 1135 pbm.pbm_bar_off + start * width); 1136 for (a = 0; a < count; a += width, db++) { 1137 res = fwrite(db, width, 1, stdout); 1138 if (res != 1) { 1139 errx(1, "error writing to stdout"); 1140 break; 1141 } 1142 } 1143 break; 1144 case 2: 1145 dh = (uint16_t *)(uintptr_t)((uintptr_t)pbm.pbm_map_base + 1146 pbm.pbm_bar_off + start * width); 1147 for (a = 0; a < count; a += width, dh++) { 1148 res = fwrite(dh, width, 1, stdout); 1149 if (res != 1) { 1150 errx(1, "error writing to stdout"); 1151 break; 1152 } 1153 } 1154 break; 1155 case 4: 1156 dd = (uint32_t *)(uintptr_t)((uintptr_t)pbm.pbm_map_base + 1157 pbm.pbm_bar_off + start * width); 1158 for (a = 0; a < count; a += width, dd++) { 1159 res = fwrite(dd, width, 1, stdout); 1160 if (res != 1) { 1161 errx(1, "error writing to stdout"); 1162 break; 1163 } 1164 } 1165 break; 1166 case 8: 1167 dx = (uint64_t *)(uintptr_t)((uintptr_t)pbm.pbm_map_base + 1168 pbm.pbm_bar_off + start * width); 1169 for (a = 0; a < count; a += width, dx++) { 1170 res = fwrite(dx, width, 1, stdout); 1171 if (res != 1) { 1172 errx(1, "error writing to stdout"); 1173 break; 1174 } 1175 } 1176 break; 1177 default: 1178 errx(1, "invalid access width"); 1179 } 1180 1181 munmap((void *)pbm.pbm_map_base, pbm.pbm_map_length); 1182 close(fd); 1183 } 1184