lspci.c

   1 /*
   2  *      The PCI Utilities -- List All PCI Devices
   3  *
   4  *      Copyright (c) 1997--2016 Martin Mares <mj@ucw.cz>
   5  *
   6  *      Can be freely distributed and used under the terms of the GNU GPL.
   7  */
   8
   9 #include <stdio.h>
  10 #include <string.h>
  11 #include <stdlib.h>
  12 #include <stdarg.h>
  13
  14 #include "lspci.h"
  15
  16 /* Options */
  17
  18 int verbose;                            /* Show detailed information */
  19 static int opt_hex;                     /* Show contents of config space as hexadecimal numbers */
  20 struct pci_filter filter;               /* Device filter */
  21 static int opt_tree;                    /* Show bus tree */
  22 static int opt_machine;                 /* Generate machine-readable output */
  23 static int opt_map_mode;                /* Bus mapping mode enabled */
  24 static int opt_domains;                 /* Show domain numbers (0=disabled, 1=auto-detected, 2=requested) */
  25 static int opt_kernel;                  /* Show kernel drivers */
  26 static int opt_query_dns;               /* Query the DNS (0=disabled, 1=enabled, 2=refresh cache) */
  27 static int opt_query_all;               /* Query the DNS for all entries */
  28 char *opt_pcimap;                       /* Override path to Linux modules.pcimap */
  29
  30 const char program_name[] = "lspci";
  31
  32 static char options[] = "nvbxs:d:ti:mgp:qkMDQ" GENERIC_OPTIONS ;
  33
  34 static char help_msg[] =
  35 "Usage: lspci [<switches>]\n"
  36 "\n"
  37 "Basic display modes:\n"
  38 "-mm\t\tProduce machine-readable output (single -m for an obsolete format)\n"
  39 "-t\t\tShow bus tree\n"
  40 "\n"
  41 "Display options:\n"
  42 "-v\t\tBe verbose (-vv for very verbose)\n"
  43 #ifdef PCI_OS_LINUX
  44 "-k\t\tShow kernel drivers handling each device\n"
  45 #endif
  46 "-x\t\tShow hex-dump of the standard part of the config space\n"
  47 "-xxx\t\tShow hex-dump of the whole config space (dangerous; root only)\n"
  48 "-xxxx\t\tShow hex-dump of the 4096-byte extended config space (root only)\n"
  49 "-b\t\tBus-centric view (addresses and IRQ's as seen by the bus)\n"
  50 "-D\t\tAlways show domain numbers\n"
  51 "\n"
  52 "Resolving of device ID's to names:\n"
  53 "-n\t\tShow numeric ID's\n"
  54 "-nn\t\tShow both textual and numeric ID's (names & numbers)\n"
  55 #ifdef PCI_USE_DNS
  56 "-q\t\tQuery the PCI ID database for unknown ID's via DNS\n"
  57 "-qq\t\tAs above, but re-query locally cached entries\n"
  58 "-Q\t\tQuery the PCI ID database for all ID's via DNS\n"
  59 #endif
  60 "\n"
  61 "Selection of devices:\n"
  62 "-s [[[[<domain>]:]<bus>]:][<slot>][.[<func>]]\tShow only devices in selected slots\n"
  63 "-d [<vendor>]:[<device>][:<class>]\t\tShow only devices with specified ID's\n"
  64 "\n"
  65 "Other options:\n"
  66 "-i <file>\tUse specified ID database instead of %s\n"
  67 #ifdef PCI_OS_LINUX
  68 "-p <file>\tLook up kernel modules in a given file instead of default modules.pcimap\n"
  69 #endif
  70 "-M\t\tEnable `bus mapping' mode (dangerous; root only)\n"
  71 "\n"
  72 "PCI access options:\n"
  73 GENERIC_HELP
  74 ;
  75
  76 /*** Our view of the PCI bus ***/
  77
  78 struct pci_access *pacc;
  79 struct device *first_dev;
  80 static int seen_errors;
  81
  82 int
  83 config_fetch(struct device *d, unsigned int pos, unsigned int len)
  84 {
  85   unsigned int end = pos+len;
  86   int result;
  87
  88   while (pos < d->config_bufsize && len && d->present[pos])
  89     pos++, len--;
  90   while (pos+len <= d->config_bufsize && len && d->present[pos+len-1])
  91     len--;
  92   if (!len)
  93     return 1;
  94
  95   if (end > d->config_bufsize)
  96     {
  97       int orig_size = d->config_bufsize;
  98       while (end > d->config_bufsize)
  99         d->config_bufsize *= 2;
 100       d->config = xrealloc(d->config, d->config_bufsize);
 101       d->present = xrealloc(d->present, d->config_bufsize);
 102       memset(d->present + orig_size, 0, d->config_bufsize - orig_size);
 103     }
 104   result = pci_read_block(d->dev, pos, d->config + pos, len);
 105   if (result)
 106     memset(d->present + pos, 1, len);
 107   return result;
 108 }
 109
 110 struct device *
 111 scan_device(struct pci_dev *p)
 112 {
 113   struct device *d;
 114
 115   if (p->domain && !opt_domains)
 116     opt_domains = 1;
 117   if (!pci_filter_match(&filter, p))
 118     return NULL;
 119   d = xmalloc(sizeof(struct device));
 120   memset(d, 0, sizeof(*d));
 121   d->dev = p;
 122   d->config_cached = d->config_bufsize = 64;
 123   d->config = xmalloc(64);
 124   d->present = xmalloc(64);
 125   memset(d->present, 1, 64);
 126   if (!pci_read_block(p, 0, d->config, 64))
 127     {
 128       fprintf(stderr, "lspci: Unable to read the standard configuration space header of device %04x:%02x:%02x.%d\n",
 129               p->domain, p->bus, p->dev, p->func);
 130       seen_errors++;
 131       return NULL;
 132     }
 133   if ((d->config[PCI_HEADER_TYPE] & 0x7f) == PCI_HEADER_TYPE_CARDBUS)
 134     {
 135       /* For cardbus bridges, we need to fetch 64 bytes more to get the
 136        * full standard header... */
 137       if (config_fetch(d, 64, 64))
 138         d->config_cached += 64;
 139     }
 140   pci_setup_cache(p, d->config, d->config_cached);
 141   pci_fill_info(p, PCI_FILL_IDENT | PCI_FILL_CLASS);
 142   return d;
 143 }
 144
 145 static void
 146 scan_devices(void)
 147 {
 148   struct device *d;
 149   struct pci_dev *p;
 150
 151   pci_scan_bus(pacc);
 152   for (p=pacc->devices; p; p=p->next)
 153     if (d = scan_device(p))
 154       {
 155         d->next = first_dev;
 156         first_dev = d;
 157       }
 158 }
 159
 160 /*** Config space accesses ***/
 161
 162 static void
 163 check_conf_range(struct device *d, unsigned int pos, unsigned int len)
 164 {
 165   while (len)
 166     if (!d->present[pos])
 167       die("Internal bug: Accessing non-read configuration byte at position %x", pos);
 168     else
 169       pos++, len--;
 170 }
 171
 172 byte
 173 get_conf_byte(struct device *d, unsigned int pos)
 174 {
 175   check_conf_range(d, pos, 1);
 176   return d->config[pos];
 177 }
 178
 179 word
 180 get_conf_word(struct device *d, unsigned int pos)
 181 {
 182   check_conf_range(d, pos, 2);
 183   return d->config[pos] | (d->config[pos+1] << 8);
 184 }
 185
 186 u32
 187 get_conf_long(struct device *d, unsigned int pos)
 188 {
 189   check_conf_range(d, pos, 4);
 190   return d->config[pos] |
 191     (d->config[pos+1] << 8) |
 192     (d->config[pos+2] << 16) |
 193     (d->config[pos+3] << 24);
 194 }
 195
 196 /*** Sorting ***/
 197
 198 static int
 199 compare_them(const void *A, const void *B)
 200 {
 201   const struct pci_dev *a = (*(const struct device **)A)->dev;
 202   const struct pci_dev *b = (*(const struct device **)B)->dev;
 203
 204   if (a->domain < b->domain)
 205     return -1;
 206   if (a->domain > b->domain)
 207     return 1;
 208   if (a->bus < b->bus)
 209     return -1;
 210   if (a->bus > b->bus)
 211     return 1;
 212   if (a->dev < b->dev)
 213     return -1;
 214   if (a->dev > b->dev)
 215     return 1;
 216   if (a->func < b->func)
 217     return -1;
 218   if (a->func > b->func)
 219     return 1;
 220   return 0;
 221 }
 222
 223 static void
 224 sort_them(void)
 225 {
 226   struct device **index, **h, **last_dev;
 227   int cnt;
 228   struct device *d;
 229
 230   cnt = 0;
 231   for (d=first_dev; d; d=d->next)
 232     cnt++;
 233   h = index = alloca(sizeof(struct device *) * cnt);
 234   for (d=first_dev; d; d=d->next)
 235     *h++ = d;
 236   qsort(index, cnt, sizeof(struct device *), compare_them);
 237   last_dev = &first_dev;
 238   h = index;
 239   while (cnt--)
 240     {
 241       *last_dev = *h;
 242       last_dev = &(*h)->next;
 243       h++;
 244     }
 245   *last_dev = NULL;
 246 }
 247
 248 /*** Normal output ***/
 249
 250 static void
 251 show_slot_name(struct device *d)
 252 {
 253   struct pci_dev *p = d->dev;
 254
 255   if (!opt_machine ? opt_domains : (p->domain || opt_domains >= 2))
 256     printf("%04x:", p->domain);
 257   printf("%02x:%02x.%d", p->bus, p->dev, p->func);
 258 }
 259
 260 void
 261 get_subid(struct device *d, word *subvp, word *subdp)
 262 {
 263   byte htype = get_conf_byte(d, PCI_HEADER_TYPE) & 0x7f;
 264
 265   if (htype == PCI_HEADER_TYPE_NORMAL)
 266     {
 267       *subvp = get_conf_word(d, PCI_SUBSYSTEM_VENDOR_ID);
 268       *subdp = get_conf_word(d, PCI_SUBSYSTEM_ID);
 269     }
 270   else if (htype == PCI_HEADER_TYPE_CARDBUS && d->config_cached >= 128)
 271     {
 272       *subvp = get_conf_word(d, PCI_CB_SUBSYSTEM_VENDOR_ID);
 273       *subdp = get_conf_word(d, PCI_CB_SUBSYSTEM_ID);
 274     }
 275   else
 276     *subvp = *subdp = 0xffff;
 277 }
 278
 279 static void
 280 show_terse(struct device *d)
 281 {
 282   int c;
 283   struct pci_dev *p = d->dev;
 284   char classbuf[128], devbuf[128];
 285
 286   show_slot_name(d);
 287   printf(" %s: %s",
 288          pci_lookup_name(pacc, classbuf, sizeof(classbuf),
 289                          PCI_LOOKUP_CLASS,
 290                          p->device_class),
 291          pci_lookup_name(pacc, devbuf, sizeof(devbuf),
 292                          PCI_LOOKUP_VENDOR | PCI_LOOKUP_DEVICE,
 293                          p->vendor_id, p->device_id));
 294   if (c = get_conf_byte(d, PCI_REVISION_ID))
 295     printf(" (rev %02x)", c);
 296   if (verbose)
 297     {
 298       char *x;
 299       c = get_conf_byte(d, PCI_CLASS_PROG);
 300       x = pci_lookup_name(pacc, devbuf, sizeof(devbuf),
 301                           PCI_LOOKUP_PROGIF | PCI_LOOKUP_NO_NUMBERS,
 302                           p->device_class, c);
 303       if (c || x)
 304         {
 305           printf(" (prog-if %02x", c);
 306           if (x)
 307             printf(" [%s]", x);
 308           putchar(')');
 309         }
 310     }
 311   putchar('\n');
 312
 313   if (verbose || opt_kernel)
 314     {
 315       word subsys_v, subsys_d;
 316       char ssnamebuf[256];
 317
 318       pci_fill_info(p, PCI_FILL_LABEL);
 319
 320       if (p->label)
 321         printf("\tDeviceName: %s", p->label);
 322       get_subid(d, &subsys_v, &subsys_d);
 323       if (subsys_v && subsys_v != 0xffff)
 324         printf("\tSubsystem: %s\n",
 325                 pci_lookup_name(pacc, ssnamebuf, sizeof(ssnamebuf),
 326                         PCI_LOOKUP_SUBSYSTEM | PCI_LOOKUP_VENDOR | PCI_LOOKUP_DEVICE,
 327                         p->vendor_id, p->device_id, subsys_v, subsys_d));
 328     }
 329 }
 330
 331 /*** Verbose output ***/
 332
 333 static void
 334 show_size(u64 x)
 335 {
 336   static const char suffix[][2] = { "", "K", "M", "G", "T" };
 337   unsigned i;
 338   if (!x)
 339     return;
 340   for (i = 0; i < (sizeof(suffix) / sizeof(*suffix) - 1); i++) {
 341     if (x % 1024)
 342       break;
 343     x /= 1024;
 344   }
 345   printf(" [size=%u%s]", (unsigned)x, suffix[i]);
 346 }
 347
 348 static void
 349 show_range(char *prefix, u64 base, u64 limit, int is_64bit)
 350 {
 351   if (base > limit)
 352     {
 353       if (!verbose)
 354         return;
 355       else if (verbose < 3)
 356         {
 357           printf("%s: None\n", prefix);
 358           return;
 359         }
 360     }
 361
 362   printf("%s: ", prefix);
 363   if (is_64bit)
 364     printf("%016" PCI_U64_FMT_X "-%016" PCI_U64_FMT_X, base, limit);
 365   else
 366     printf("%08x-%08x", (unsigned) base, (unsigned) limit);
 367   if (base <= limit)
 368     show_size(limit - base + 1);
 369   else
 370     printf(" [empty]");
 371   putchar('\n');
 372 }
 373
 374 static void
 375 show_bases(struct device *d, int cnt)
 376 {
 377   struct pci_dev *p = d->dev;
 378   word cmd = get_conf_word(d, PCI_COMMAND);
 379   int i;
 380   int virtual = 0;
 381
 382   for (i=0; i<cnt; i++)
 383     {
 384       pciaddr_t pos = p->base_addr[i];
 385       pciaddr_t len = (p->known_fields & PCI_FILL_SIZES) ? p->size[i] : 0;
 386       pciaddr_t ioflg = (p->known_fields & PCI_FILL_IO_FLAGS) ? p->flags[i] : 0;
 387       u32 flg = get_conf_long(d, PCI_BASE_ADDRESS_0 + 4*i);
 388       if (flg == 0xffffffff)
 389         flg = 0;
 390       if (!pos && !flg && !len)
 391         continue;
 392       if (verbose > 1)
 393         printf("\tRegion %d: ", i);
 394       else
 395         putchar('\t');
 396       if (ioflg & PCI_IORESOURCE_PCI_EA_BEI)
 397           printf("[enhanced] ");
 398       else if (pos && !(flg & ((flg & PCI_BASE_ADDRESS_SPACE_IO) ? PCI_BASE_ADDRESS_IO_MASK : PCI_BASE_ADDRESS_MEM_MASK)))
 399         {
 400           /* Reported by the OS, but not by the device */
 401           printf("[virtual] ");
 402           flg = pos;
 403           virtual = 1;
 404         }
 405       if (flg & PCI_BASE_ADDRESS_SPACE_IO)
 406         {
 407           pciaddr_t a = pos & PCI_BASE_ADDRESS_IO_MASK;
 408           printf("I/O ports at ");
 409           if (a || (cmd & PCI_COMMAND_IO))
 410             printf(PCIADDR_PORT_FMT, a);
 411           else if (flg & PCI_BASE_ADDRESS_IO_MASK)
 412             printf("<ignored>");
 413           else
 414             printf("<unassigned>");
 415           if (!virtual && !(cmd & PCI_COMMAND_IO))
 416             printf(" [disabled]");
 417         }
 418       else
 419         {
 420           int t = flg & PCI_BASE_ADDRESS_MEM_TYPE_MASK;
 421           pciaddr_t a = pos & PCI_ADDR_MEM_MASK;
 422           int done = 0;
 423           u32 z = 0;
 424
 425           printf("Memory at ");
 426           if (t == PCI_BASE_ADDRESS_MEM_TYPE_64)
 427             {
 428               if (i >= cnt - 1)
 429                 {
 430                   printf("<invalid-64bit-slot>");
 431                   done = 1;
 432                 }
 433               else
 434                 {
 435                   i++;
 436                   z = get_conf_long(d, PCI_BASE_ADDRESS_0 + 4*i);
 437                 }
 438             }
 439           if (!done)
 440             {
 441               if (a)
 442                 printf(PCIADDR_T_FMT, a);
 443               else
 444                 printf(((flg & PCI_BASE_ADDRESS_MEM_MASK) || z) ? "<ignored>" : "<unassigned>");
 445             }
 446           printf(" (%s, %sprefetchable)",
 447                  (t == PCI_BASE_ADDRESS_MEM_TYPE_32) ? "32-bit" :
 448                  (t == PCI_BASE_ADDRESS_MEM_TYPE_64) ? "64-bit" :
 449                  (t == PCI_BASE_ADDRESS_MEM_TYPE_1M) ? "low-1M" : "type 3",
 450                  (flg & PCI_BASE_ADDRESS_MEM_PREFETCH) ? "" : "non-");
 451           if (!virtual && !(cmd & PCI_COMMAND_MEMORY))
 452             printf(" [disabled]");
 453         }
 454       show_size(len);
 455       putchar('\n');
 456     }
 457 }
 458
 459 static void
 460 show_rom(struct device *d, int reg)
 461 {
 462   struct pci_dev *p = d->dev;
 463   pciaddr_t rom = p->rom_base_addr;
 464   pciaddr_t len = (p->known_fields & PCI_FILL_SIZES) ? p->rom_size : 0;
 465   pciaddr_t ioflg = (p->known_fields & PCI_FILL_IO_FLAGS) ? p->rom_flags : 0;
 466   u32 flg = get_conf_long(d, reg);
 467   word cmd = get_conf_word(d, PCI_COMMAND);
 468   int virtual = 0;
 469
 470   if (!rom && !flg && !len)
 471     return;
 472   putchar('\t');
 473   if (ioflg & PCI_IORESOURCE_PCI_EA_BEI)
 474       printf("[enhanced] ");
 475   else if ((rom & PCI_ROM_ADDRESS_MASK) && !(flg & PCI_ROM_ADDRESS_MASK))
 476     {
 477       printf("[virtual] ");
 478       flg = rom;
 479       virtual = 1;
 480     }
 481   printf("Expansion ROM at ");
 482   if (rom & PCI_ROM_ADDRESS_MASK)
 483     printf(PCIADDR_T_FMT, rom & PCI_ROM_ADDRESS_MASK);
 484   else if (flg & PCI_ROM_ADDRESS_MASK)
 485     printf("<ignored>");
 486   else
 487     printf("<unassigned>");
 488   if (!(flg & PCI_ROM_ADDRESS_ENABLE))
 489     printf(" [disabled]");
 490   else if (!virtual && !(cmd & PCI_COMMAND_MEMORY))
 491     printf(" [disabled by cmd]");
 492   show_size(len);
 493   putchar('\n');
 494 }
 495
 496 static void
 497 show_htype0(struct device *d)
 498 {
 499   show_bases(d, 6);
 500   show_rom(d, PCI_ROM_ADDRESS);
 501   show_caps(d, PCI_CAPABILITY_LIST);
 502 }
 503
 504 static void
 505 show_htype1(struct device *d)
 506 {
 507   u32 io_base = get_conf_byte(d, PCI_IO_BASE);
 508   u32 io_limit = get_conf_byte(d, PCI_IO_LIMIT);
 509   u32 io_type = io_base & PCI_IO_RANGE_TYPE_MASK;
 510   u32 mem_base = get_conf_word(d, PCI_MEMORY_BASE);
 511   u32 mem_limit = get_conf_word(d, PCI_MEMORY_LIMIT);
 512   u32 mem_type = mem_base & PCI_MEMORY_RANGE_TYPE_MASK;
 513   u32 pref_base = get_conf_word(d, PCI_PREF_MEMORY_BASE);
 514   u32 pref_limit = get_conf_word(d, PCI_PREF_MEMORY_LIMIT);
 515   u32 pref_type = pref_base & PCI_PREF_RANGE_TYPE_MASK;
 516   word sec_stat = get_conf_word(d, PCI_SEC_STATUS);
 517   word brc = get_conf_word(d, PCI_BRIDGE_CONTROL);
 518
 519   show_bases(d, 2);
 520   printf("\tBus: primary=%02x, secondary=%02x, subordinate=%02x, sec-latency=%d\n",
 521          get_conf_byte(d, PCI_PRIMARY_BUS),
 522          get_conf_byte(d, PCI_SECONDARY_BUS),
 523          get_conf_byte(d, PCI_SUBORDINATE_BUS),
 524          get_conf_byte(d, PCI_SEC_LATENCY_TIMER));
 525
 526   if (io_type != (io_limit & PCI_IO_RANGE_TYPE_MASK) ||
 527       (io_type != PCI_IO_RANGE_TYPE_16 && io_type != PCI_IO_RANGE_TYPE_32))
 528     printf("\t!!! Unknown I/O range types %x/%x\n", io_base, io_limit);
 529   else
 530     {
 531       io_base = (io_base & PCI_IO_RANGE_MASK) << 8;
 532       io_limit = (io_limit & PCI_IO_RANGE_MASK) << 8;
 533       if (io_type == PCI_IO_RANGE_TYPE_32)
 534         {
 535           io_base |= (get_conf_word(d, PCI_IO_BASE_UPPER16) << 16);
 536           io_limit |= (get_conf_word(d, PCI_IO_LIMIT_UPPER16) << 16);
 537         }
 538       show_range("\tI/O behind bridge", io_base, io_limit+0xfff, 0);
 539     }
 540
 541   if (mem_type != (mem_limit & PCI_MEMORY_RANGE_TYPE_MASK) ||
 542       mem_type)
 543     printf("\t!!! Unknown memory range types %x/%x\n", mem_base, mem_limit);
 544   else
 545     {
 546       mem_base = (mem_base & PCI_MEMORY_RANGE_MASK) << 16;
 547       mem_limit = (mem_limit & PCI_MEMORY_RANGE_MASK) << 16;
 548       show_range("\tMemory behind bridge", mem_base, mem_limit + 0xfffff, 0);
 549     }
 550
 551   if (pref_type != (pref_limit & PCI_PREF_RANGE_TYPE_MASK) ||
 552       (pref_type != PCI_PREF_RANGE_TYPE_32 && pref_type != PCI_PREF_RANGE_TYPE_64))
 553     printf("\t!!! Unknown prefetchable memory range types %x/%x\n", pref_base, pref_limit);
 554   else
 555     {
 556       u64 pref_base_64 = (pref_base & PCI_PREF_RANGE_MASK) << 16;
 557       u64 pref_limit_64 = (pref_limit & PCI_PREF_RANGE_MASK) << 16;
 558       if (pref_type == PCI_PREF_RANGE_TYPE_64)
 559         {
 560           pref_base_64 |= (u64) get_conf_long(d, PCI_PREF_BASE_UPPER32) << 32;
 561           pref_limit_64 |= (u64) get_conf_long(d, PCI_PREF_LIMIT_UPPER32) << 32;
 562         }
 563       show_range("\tPrefetchable memory behind bridge", pref_base_64, pref_limit_64 + 0xfffff, (pref_type == PCI_PREF_RANGE_TYPE_64));
 564     }
 565
 566   if (verbose > 1)
 567     printf("\tSecondary status: 66MHz%c FastB2B%c ParErr%c DEVSEL=%s >TAbort%c <TAbort%c <MAbort%c <SERR%c <PERR%c\n",
 568              FLAG(sec_stat, PCI_STATUS_66MHZ),
 569              FLAG(sec_stat, PCI_STATUS_FAST_BACK),
 570              FLAG(sec_stat, PCI_STATUS_PARITY),
 571              ((sec_stat & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_SLOW) ? "slow" :
 572              ((sec_stat & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_MEDIUM) ? "medium" :
 573              ((sec_stat & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_FAST) ? "fast" : "??",
 574              FLAG(sec_stat, PCI_STATUS_SIG_TARGET_ABORT),
 575              FLAG(sec_stat, PCI_STATUS_REC_TARGET_ABORT),
 576              FLAG(sec_stat, PCI_STATUS_REC_MASTER_ABORT),
 577              FLAG(sec_stat, PCI_STATUS_SIG_SYSTEM_ERROR),
 578              FLAG(sec_stat, PCI_STATUS_DETECTED_PARITY));
 579
 580   show_rom(d, PCI_ROM_ADDRESS1);
 581
 582   if (verbose > 1)
 583     {
 584       printf("\tBridgeCtl: Parity%c SERR%c NoISA%c VGA%c VGA16%c MAbort%c >Reset%c FastB2B%c\n",
 585         FLAG(brc, PCI_BRIDGE_CTL_PARITY),
 586         FLAG(brc, PCI_BRIDGE_CTL_SERR),
 587         FLAG(brc, PCI_BRIDGE_CTL_NO_ISA),
 588         FLAG(brc, PCI_BRIDGE_CTL_VGA),
 589         FLAG(brc, PCI_BRIDGE_CTL_VGA_16BIT),
 590         FLAG(brc, PCI_BRIDGE_CTL_MASTER_ABORT),
 591         FLAG(brc, PCI_BRIDGE_CTL_BUS_RESET),
 592         FLAG(brc, PCI_BRIDGE_CTL_FAST_BACK));
 593       printf("\t\tPriDiscTmr%c SecDiscTmr%c DiscTmrStat%c DiscTmrSERREn%c\n",
 594         FLAG(brc, PCI_BRIDGE_CTL_PRI_DISCARD_TIMER),
 595         FLAG(brc, PCI_BRIDGE_CTL_SEC_DISCARD_TIMER),
 596         FLAG(brc, PCI_BRIDGE_CTL_DISCARD_TIMER_STATUS),
 597         FLAG(brc, PCI_BRIDGE_CTL_DISCARD_TIMER_SERR_EN));
 598     }
 599
 600   show_caps(d, PCI_CAPABILITY_LIST);
 601 }
 602
 603 static void
 604 show_htype2(struct device *d)
 605 {
 606   int i;
 607   word cmd = get_conf_word(d, PCI_COMMAND);
 608   word brc = get_conf_word(d, PCI_CB_BRIDGE_CONTROL);
 609   word exca;
 610   int verb = verbose > 2;
 611
 612   show_bases(d, 1);
 613   printf("\tBus: primary=%02x, secondary=%02x, subordinate=%02x, sec-latency=%d\n",
 614          get_conf_byte(d, PCI_CB_PRIMARY_BUS),
 615          get_conf_byte(d, PCI_CB_CARD_BUS),
 616          get_conf_byte(d, PCI_CB_SUBORDINATE_BUS),
 617          get_conf_byte(d, PCI_CB_LATENCY_TIMER));
 618   for (i=0; i<2; i++)
 619     {
 620       int p = 8*i;
 621       u32 base = get_conf_long(d, PCI_CB_MEMORY_BASE_0 + p);
 622       u32 limit = get_conf_long(d, PCI_CB_MEMORY_LIMIT_0 + p);
 623       limit = limit + 0xfff;
 624       if (base <= limit || verb)
 625         printf("\tMemory window %d: %08x-%08x%s%s\n", i, base, limit,
 626                (cmd & PCI_COMMAND_MEMORY) ? "" : " [disabled]",
 627                (brc & (PCI_CB_BRIDGE_CTL_PREFETCH_MEM0 << i)) ? " (prefetchable)" : "");
 628     }
 629   for (i=0; i<2; i++)
 630     {
 631       int p = 8*i;
 632       u32 base = get_conf_long(d, PCI_CB_IO_BASE_0 + p);
 633       u32 limit = get_conf_long(d, PCI_CB_IO_LIMIT_0 + p);
 634       if (!(base & PCI_IO_RANGE_TYPE_32))
 635         {
 636           base &= 0xffff;
 637           limit &= 0xffff;
 638         }
 639       base &= PCI_CB_IO_RANGE_MASK;
 640       limit = (limit & PCI_CB_IO_RANGE_MASK) + 3;
 641       if (base <= limit || verb)
 642         printf("\tI/O window %d: %08x-%08x%s\n", i, base, limit,
 643                (cmd & PCI_COMMAND_IO) ? "" : " [disabled]");
 644     }
 645
 646   if (get_conf_word(d, PCI_CB_SEC_STATUS) & PCI_STATUS_SIG_SYSTEM_ERROR)
 647     printf("\tSecondary status: SERR\n");
 648   if (verbose > 1)
 649     printf("\tBridgeCtl: Parity%c SERR%c ISA%c VGA%c MAbort%c >Reset%c 16bInt%c PostWrite%c\n",
 650            FLAG(brc, PCI_CB_BRIDGE_CTL_PARITY),
 651            FLAG(brc, PCI_CB_BRIDGE_CTL_SERR),
 652            FLAG(brc, PCI_CB_BRIDGE_CTL_ISA),
 653            FLAG(brc, PCI_CB_BRIDGE_CTL_VGA),
 654            FLAG(brc, PCI_CB_BRIDGE_CTL_MASTER_ABORT),
 655            FLAG(brc, PCI_CB_BRIDGE_CTL_CB_RESET),
 656            FLAG(brc, PCI_CB_BRIDGE_CTL_16BIT_INT),
 657            FLAG(brc, PCI_CB_BRIDGE_CTL_POST_WRITES));
 658
 659   if (d->config_cached < 128)
 660     {
 661       printf("\t<access denied to the rest>\n");
 662       return;
 663     }
 664
 665   exca = get_conf_word(d, PCI_CB_LEGACY_MODE_BASE);
 666   if (exca)
 667     printf("\t16-bit legacy interface ports at %04x\n", exca);
 668   show_caps(d, PCI_CB_CAPABILITY_LIST);
 669 }
 670
 671 static void
 672 show_verbose(struct device *d)
 673 {
 674   struct pci_dev *p = d->dev;
 675   word status = get_conf_word(d, PCI_STATUS);
 676   word cmd = get_conf_word(d, PCI_COMMAND);
 677   word class = p->device_class;
 678   byte bist = get_conf_byte(d, PCI_BIST);
 679   byte htype = get_conf_byte(d, PCI_HEADER_TYPE) & 0x7f;
 680   byte latency = get_conf_byte(d, PCI_LATENCY_TIMER);
 681   byte cache_line = get_conf_byte(d, PCI_CACHE_LINE_SIZE);
 682   byte max_lat, min_gnt;
 683   byte int_pin = get_conf_byte(d, PCI_INTERRUPT_PIN);
 684   unsigned int irq;
 685   char *dt_node;
 686
 687   show_terse(d);
 688
 689   pci_fill_info(p, PCI_FILL_IRQ | PCI_FILL_BASES | PCI_FILL_ROM_BASE | PCI_FILL_SIZES |
 690     PCI_FILL_PHYS_SLOT | PCI_FILL_NUMA_NODE | PCI_FILL_DT_NODE);
 691   irq = p->irq;
 692
 693   switch (htype)
 694     {
 695     case PCI_HEADER_TYPE_NORMAL:
 696       if (class == PCI_CLASS_BRIDGE_PCI)
 697         printf("\t!!! Invalid class %04x for header type %02x\n", class, htype);
 698       max_lat = get_conf_byte(d, PCI_MAX_LAT);
 699       min_gnt = get_conf_byte(d, PCI_MIN_GNT);
 700       break;
 701     case PCI_HEADER_TYPE_BRIDGE:
 702       if ((class >> 8) != PCI_BASE_CLASS_BRIDGE)
 703         printf("\t!!! Invalid class %04x for header type %02x\n", class, htype);
 704       min_gnt = max_lat = 0;
 705       break;
 706     case PCI_HEADER_TYPE_CARDBUS:
 707       if ((class >> 8) != PCI_BASE_CLASS_BRIDGE)
 708         printf("\t!!! Invalid class %04x for header type %02x\n", class, htype);
 709       min_gnt = max_lat = 0;
 710       break;
 711     default:
 712       printf("\t!!! Unknown header type %02x\n", htype);
 713       return;
 714     }
 715
 716   if (p->phy_slot)
 717     printf("\tPhysical Slot: %s\n", p->phy_slot);
 718
 719   if (dt_node = pci_get_string_property(p, PCI_FILL_DT_NODE))
 720     printf("\tDevice tree node: %s\n", dt_node);
 721
 722   if (verbose > 1)
 723     {
 724       printf("\tControl: I/O%c Mem%c BusMaster%c SpecCycle%c MemWINV%c VGASnoop%c ParErr%c Stepping%c SERR%c FastB2B%c DisINTx%c\n",
 725              FLAG(cmd, PCI_COMMAND_IO),
 726              FLAG(cmd, PCI_COMMAND_MEMORY),
 727              FLAG(cmd, PCI_COMMAND_MASTER),
 728              FLAG(cmd, PCI_COMMAND_SPECIAL),
 729              FLAG(cmd, PCI_COMMAND_INVALIDATE),
 730              FLAG(cmd, PCI_COMMAND_VGA_PALETTE),
 731              FLAG(cmd, PCI_COMMAND_PARITY),
 732              FLAG(cmd, PCI_COMMAND_WAIT),
 733              FLAG(cmd, PCI_COMMAND_SERR),
 734              FLAG(cmd, PCI_COMMAND_FAST_BACK),
 735              FLAG(cmd, PCI_COMMAND_DISABLE_INTx));
 736       printf("\tStatus: Cap%c 66MHz%c UDF%c FastB2B%c ParErr%c DEVSEL=%s >TAbort%c <TAbort%c <MAbort%c >SERR%c <PERR%c INTx%c\n",
 737              FLAG(status, PCI_STATUS_CAP_LIST),
 738              FLAG(status, PCI_STATUS_66MHZ),
 739              FLAG(status, PCI_STATUS_UDF),
 740              FLAG(status, PCI_STATUS_FAST_BACK),
 741              FLAG(status, PCI_STATUS_PARITY),
 742              ((status & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_SLOW) ? "slow" :
 743              ((status & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_MEDIUM) ? "medium" :
 744              ((status & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_FAST) ? "fast" : "??",
 745              FLAG(status, PCI_STATUS_SIG_TARGET_ABORT),
 746              FLAG(status, PCI_STATUS_REC_TARGET_ABORT),
 747              FLAG(status, PCI_STATUS_REC_MASTER_ABORT),
 748              FLAG(status, PCI_STATUS_SIG_SYSTEM_ERROR),
 749              FLAG(status, PCI_STATUS_DETECTED_PARITY),
 750              FLAG(status, PCI_STATUS_INTx));
 751       if (cmd & PCI_COMMAND_MASTER)
 752         {
 753           printf("\tLatency: %d", latency);
 754           if (min_gnt || max_lat)
 755             {
 756               printf(" (");
 757               if (min_gnt)
 758                 printf("%dns min", min_gnt*250);
 759               if (min_gnt && max_lat)
 760                 printf(", ");
 761               if (max_lat)
 762                 printf("%dns max", max_lat*250);
 763               putchar(')');
 764             }
 765           if (cache_line)
 766             printf(", Cache Line Size: %d bytes", cache_line * 4);
 767           putchar('\n');
 768         }
 769       if (int_pin || irq)
 770         printf("\tInterrupt: pin %c routed to IRQ " PCIIRQ_FMT "\n",
 771                (int_pin ? 'A' + int_pin - 1 : '?'), irq);
 772       if (p->numa_node != -1)
 773         printf("\tNUMA node: %d\n", p->numa_node);
 774     }
 775   else
 776     {
 777       printf("\tFlags: ");
 778       if (cmd & PCI_COMMAND_MASTER)
 779         printf("bus master, ");
 780       if (cmd & PCI_COMMAND_VGA_PALETTE)
 781         printf("VGA palette snoop, ");
 782       if (cmd & PCI_COMMAND_WAIT)
 783         printf("stepping, ");
 784       if (cmd & PCI_COMMAND_FAST_BACK)
 785         printf("fast Back2Back, ");
 786       if (status & PCI_STATUS_66MHZ)
 787         printf("66MHz, ");
 788       if (status & PCI_STATUS_UDF)
 789         printf("user-definable features, ");
 790       printf("%s devsel",
 791              ((status & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_SLOW) ? "slow" :
 792              ((status & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_MEDIUM) ? "medium" :
 793              ((status & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_FAST) ? "fast" : "??");
 794       if (cmd & PCI_COMMAND_MASTER)
 795         printf(", latency %d", latency);
 796       if (irq)
 797         printf(", IRQ " PCIIRQ_FMT, irq);
 798       if (p->numa_node != -1)
 799         printf(", NUMA node %d", p->numa_node);
 800       putchar('\n');
 801     }
 802
 803   if (bist & PCI_BIST_CAPABLE)
 804     {
 805       if (bist & PCI_BIST_START)
 806         printf("\tBIST is running\n");
 807       else
 808         printf("\tBIST result: %02x\n", bist & PCI_BIST_CODE_MASK);
 809     }
 810
 811   switch (htype)
 812     {
 813     case PCI_HEADER_TYPE_NORMAL:
 814       show_htype0(d);
 815       break;
 816     case PCI_HEADER_TYPE_BRIDGE:
 817       show_htype1(d);
 818       break;
 819     case PCI_HEADER_TYPE_CARDBUS:
 820       show_htype2(d);
 821       break;
 822     }
 823 }
 824
 825 /*** Machine-readable dumps ***/
 826
 827 static void
 828 show_hex_dump(struct device *d)
 829 {
 830   unsigned int i, cnt;
 831
 832   cnt = d->config_cached;
 833   if (opt_hex >= 3 && config_fetch(d, cnt, 256-cnt))
 834     {
 835       cnt = 256;
 836       if (opt_hex >= 4 && config_fetch(d, 256, 4096-256))
 837         cnt = 4096;
 838     }
 839
 840   for (i=0; i<cnt; i++)
 841     {
 842       if (! (i & 15))
 843         printf("%02x:", i);
 844       printf(" %02x", get_conf_byte(d, i));
 845       if ((i & 15) == 15)
 846         putchar('\n');
 847     }
 848 }
 849
 850 static void
 851 print_shell_escaped(char *c)
 852 {
 853   printf(" \"");
 854   while (*c)
 855     {
 856       if (*c == '"' || *c == '\\')
 857         putchar('\\');
 858       putchar(*c++);
 859     }
 860   putchar('"');
 861 }
 862
 863 static void
 864 show_machine(struct device *d)
 865 {
 866   struct pci_dev *p = d->dev;
 867   int c;
 868   word sv_id, sd_id;
 869   char classbuf[128], vendbuf[128], devbuf[128], svbuf[128], sdbuf[128];
 870   char *dt_node;
 871
 872   get_subid(d, &sv_id, &sd_id);
 873
 874   if (verbose)
 875     {
 876       pci_fill_info(p, PCI_FILL_PHYS_SLOT | PCI_FILL_NUMA_NODE | PCI_FILL_DT_NODE);
 877       printf((opt_machine >= 2) ? "Slot:\t" : "Device:\t");
 878       show_slot_name(d);
 879       putchar('\n');
 880       printf("Class:\t%s\n",
 881              pci_lookup_name(pacc, classbuf, sizeof(classbuf), PCI_LOOKUP_CLASS, p->device_class));
 882       printf("Vendor:\t%s\n",
 883              pci_lookup_name(pacc, vendbuf, sizeof(vendbuf), PCI_LOOKUP_VENDOR, p->vendor_id, p->device_id));
 884       printf("Device:\t%s\n",
 885              pci_lookup_name(pacc, devbuf, sizeof(devbuf), PCI_LOOKUP_DEVICE, p->vendor_id, p->device_id));
 886       if (sv_id && sv_id != 0xffff)
 887         {
 888           printf("SVendor:\t%s\n",
 889                  pci_lookup_name(pacc, svbuf, sizeof(svbuf), PCI_LOOKUP_SUBSYSTEM | PCI_LOOKUP_VENDOR, sv_id));
 890           printf("SDevice:\t%s\n",
 891                  pci_lookup_name(pacc, sdbuf, sizeof(sdbuf), PCI_LOOKUP_SUBSYSTEM | PCI_LOOKUP_DEVICE, p->vendor_id, p->device_id, sv_id, sd_id));
 892         }
 893       if (p->phy_slot)
 894         printf("PhySlot:\t%s\n", p->phy_slot);
 895       if (c = get_conf_byte(d, PCI_REVISION_ID))
 896         printf("Rev:\t%02x\n", c);
 897       if (c = get_conf_byte(d, PCI_CLASS_PROG))
 898         printf("ProgIf:\t%02x\n", c);
 899       if (opt_kernel)
 900         show_kernel_machine(d);
 901       if (p->numa_node != -1)
 902         printf("NUMANode:\t%d\n", p->numa_node);
 903       if (dt_node = pci_get_string_property(p, PCI_FILL_DT_NODE))
 904         printf("DTNode:\t%s\n", dt_node);
 905     }
 906   else
 907     {
 908       show_slot_name(d);
 909       print_shell_escaped(pci_lookup_name(pacc, classbuf, sizeof(classbuf), PCI_LOOKUP_CLASS, p->device_class));
 910       print_shell_escaped(pci_lookup_name(pacc, vendbuf, sizeof(vendbuf), PCI_LOOKUP_VENDOR, p->vendor_id, p->device_id));
 911       print_shell_escaped(pci_lookup_name(pacc, devbuf, sizeof(devbuf), PCI_LOOKUP_DEVICE, p->vendor_id, p->device_id));
 912       if (c = get_conf_byte(d, PCI_REVISION_ID))
 913         printf(" -r%02x", c);
 914       if (c = get_conf_byte(d, PCI_CLASS_PROG))
 915         printf(" -p%02x", c);
 916       if (sv_id && sv_id != 0xffff)
 917         {
 918           print_shell_escaped(pci_lookup_name(pacc, svbuf, sizeof(svbuf), PCI_LOOKUP_SUBSYSTEM | PCI_LOOKUP_VENDOR, sv_id));
 919           print_shell_escaped(pci_lookup_name(pacc, sdbuf, sizeof(sdbuf), PCI_LOOKUP_SUBSYSTEM | PCI_LOOKUP_DEVICE, p->vendor_id, p->device_id, sv_id, sd_id));
 920         }
 921       else
 922         printf(" \"\" \"\"");
 923       putchar('\n');
 924     }
 925 }
 926
 927 /*** Main show function ***/
 928
 929 void
 930 show_device(struct device *d)
 931 {
 932   if (opt_machine)
 933     show_machine(d);
 934   else
 935     {
 936       if (verbose)
 937         show_verbose(d);
 938       else
 939         show_terse(d);
 940       if (opt_kernel || verbose)
 941         show_kernel(d);
 942     }
 943   if (opt_hex)
 944     show_hex_dump(d);
 945   if (verbose || opt_hex)
 946     putchar('\n');
 947 }
 948
 949 static void
 950 show(void)
 951 {
 952   struct device *d;
 953
 954   for (d=first_dev; d; d=d->next)
 955     show_device(d);
 956 }
 957
 958 /* Main */
 959
 960 int
 961 main(int argc, char **argv)
 962 {
 963   int i;
 964   char *msg;
 965
 966   if (argc == 2 && !strcmp(argv[1], "--version"))
 967     {
 968       puts("lspci version " PCIUTILS_VERSION);
 969       return 0;
 970     }
 971
 972   pacc = pci_alloc();
 973   pacc->error = die;
 974   pci_filter_init(pacc, &filter);
 975
 976   while ((i = getopt(argc, argv, options)) != -1)
 977     switch (i)
 978       {
 979       case 'n':
 980         pacc->numeric_ids++;
 981         break;
 982       case 'v':
 983         verbose++;
 984         break;
 985       case 'b':
 986         pacc->buscentric = 1;
 987         break;
 988       case 's':
 989         if (msg = pci_filter_parse_slot(&filter, optarg))
 990           die("-s: %s", msg);
 991         break;
 992       case 'd':
 993         if (msg = pci_filter_parse_id(&filter, optarg))
 994           die("-d: %s", msg);
 995         break;
 996       case 'x':
 997         opt_hex++;
 998         break;
 999       case 't':
1000         opt_tree++;
1001         break;
1002       case 'i':
1003         pci_set_name_list_path(pacc, optarg, 0);
1004         break;
1005       case 'm':
1006         opt_machine++;
1007         break;
1008       case 'p':
1009         opt_pcimap = optarg;
1010         break;
1011 #ifdef PCI_OS_LINUX
1012       case 'k':
1013         opt_kernel++;
1014         break;
1015 #endif
1016       case 'M':
1017         opt_map_mode++;
1018         break;
1019       case 'D':
1020         opt_domains = 2;
1021         break;
1022 #ifdef PCI_USE_DNS
1023       case 'q':
1024         opt_query_dns++;
1025         break;
1026       case 'Q':
1027         opt_query_all = 1;
1028         break;
1029 #else
1030       case 'q':
1031       case 'Q':
1032         die("DNS queries are not available in this version");
1033 #endif
1034       default:
1035         if (parse_generic_option(i, pacc, optarg))
1036           break;
1037       bad:
1038         fprintf(stderr, help_msg, pacc->id_file_name);
1039         return 1;
1040       }
1041   if (optind < argc)
1042     goto bad;
1043
1044   if (opt_query_dns)
1045     {
1046       pacc->id_lookup_mode |= PCI_LOOKUP_NETWORK;
1047       if (opt_query_dns > 1)
1048         pacc->id_lookup_mode |= PCI_LOOKUP_REFRESH_CACHE;
1049     }
1050   if (opt_query_all)
1051     pacc->id_lookup_mode |= PCI_LOOKUP_NETWORK | PCI_LOOKUP_SKIP_LOCAL;
1052
1053   pci_init(pacc);
1054   if (opt_map_mode)
1055     map_the_bus();
1056   else
1057     {
1058       scan_devices();
1059       sort_them();
1060       if (opt_tree)
1061         show_forest();
1062       else
1063         show();
1064     }
1065   show_kernel_cleanup();
1066   pci_cleanup(pacc);
1067
1068   return (seen_errors ? 2 : 0);
1069 }