lspci.c

   1 /*
   2  *      The PCI Utilities -- List All PCI Devices
   3  *
   4  *      Copyright (c) 1997--2020 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_filter;                  /* Any filter was given */
  22 static int opt_tree;                    /* Show bus tree */
  23 static int opt_path;                    /* Show bridge path */
  24 static int opt_machine;                 /* Generate machine-readable output */
  25 static int opt_map_mode;                /* Bus mapping mode enabled */
  26 static int opt_domains;                 /* Show domain numbers (0=disabled, 1=auto-detected, 2=requested) */
  27 static int opt_kernel;                  /* Show kernel drivers */
  28 static int opt_query_dns;               /* Query the DNS (0=disabled, 1=enabled, 2=refresh cache) */
  29 static int opt_query_all;               /* Query the DNS for all entries */
  30 char *opt_pcimap;                       /* Override path to Linux modules.pcimap */
  31
  32 const char program_name[] = "lspci";
  33
  34 static char options[] = "nvbxs:d:tPi:mgp:qkMDQ" GENERIC_OPTIONS ;
  35
  36 static char help_msg[] =
  37 "Usage: lspci [<switches>]\n"
  38 "\n"
  39 "Basic display modes:\n"
  40 "-mm\t\tProduce machine-readable output (single -m for an obsolete format)\n"
  41 "-t\t\tShow bus tree\n"
  42 "\n"
  43 "Display options:\n"
  44 "-v\t\tBe verbose (-vv or -vvv for higher verbosity)\n"
  45 #ifdef PCI_OS_LINUX
  46 "-k\t\tShow kernel drivers handling each device\n"
  47 #endif
  48 "-x\t\tShow hex-dump of the standard part of the config space\n"
  49 "-xxx\t\tShow hex-dump of the whole config space (dangerous; root only)\n"
  50 "-xxxx\t\tShow hex-dump of the 4096-byte extended config space (root only)\n"
  51 "-b\t\tBus-centric view (addresses and IRQ's as seen by the bus)\n"
  52 "-D\t\tAlways show domain numbers\n"
  53 "-P\t\tDisplay bridge path in addition to bus and device number\n"
  54 "-PP\t\tDisplay bus path in addition to bus and device number\n"
  55 "\n"
  56 "Resolving of device ID's to names:\n"
  57 "-n\t\tShow numeric ID's\n"
  58 "-nn\t\tShow both textual and numeric ID's (names & numbers)\n"
  59 #ifdef PCI_USE_DNS
  60 "-q\t\tQuery the PCI ID database for unknown ID's via DNS\n"
  61 "-qq\t\tAs above, but re-query locally cached entries\n"
  62 "-Q\t\tQuery the PCI ID database for all ID's via DNS\n"
  63 #endif
  64 "\n"
  65 "Selection of devices:\n"
  66 "-s [[[[<domain>]:]<bus>]:][<slot>][.[<func>]]\tShow only devices in selected slots\n"
  67 "-d [<vendor>]:[<device>][:<class>]\t\tShow only devices with specified ID's\n"
  68 "\n"
  69 "Other options:\n"
  70 "-i <file>\tUse specified ID database instead of %s\n"
  71 #ifdef PCI_OS_LINUX
  72 "-p <file>\tLook up kernel modules in a given file instead of default modules.pcimap\n"
  73 #endif
  74 "-M\t\tEnable `bus mapping' mode (dangerous; root only)\n"
  75 "\n"
  76 "PCI access options:\n"
  77 GENERIC_HELP
  78 ;
  79
  80 /*** Our view of the PCI bus ***/
  81
  82 struct pci_access *pacc;
  83 struct device *first_dev;
  84 static int seen_errors;
  85 static int need_topology;
  86
  87 int
  88 config_fetch(struct device *d, unsigned int pos, unsigned int len)
  89 {
  90   unsigned int end = pos+len;
  91   int result;
  92
  93   while (pos < d->config_bufsize && len && d->present[pos])
  94     pos++, len--;
  95   while (pos+len <= d->config_bufsize && len && d->present[pos+len-1])
  96     len--;
  97   if (!len)
  98     return 1;
  99
 100   if (end > d->config_bufsize)
 101     {
 102       int orig_size = d->config_bufsize;
 103       while (end > d->config_bufsize)
 104         d->config_bufsize *= 2;
 105       d->config = xrealloc(d->config, d->config_bufsize);
 106       d->present = xrealloc(d->present, d->config_bufsize);
 107       memset(d->present + orig_size, 0, d->config_bufsize - orig_size);
 108     }
 109   result = pci_read_block(d->dev, pos, d->config + pos, len);
 110   if (result)
 111     memset(d->present + pos, 1, len);
 112   return result;
 113 }
 114
 115 struct device *
 116 scan_device(struct pci_dev *p)
 117 {
 118   struct device *d;
 119
 120   if (p->domain && !opt_domains)
 121     opt_domains = 1;
 122   if (!pci_filter_match(&filter, p) && !need_topology)
 123     return NULL;
 124   d = xmalloc(sizeof(struct device));
 125   memset(d, 0, sizeof(*d));
 126   d->dev = p;
 127   d->config_cached = d->config_bufsize = 64;
 128   d->config = xmalloc(64);
 129   d->present = xmalloc(64);
 130   memset(d->present, 1, 64);
 131   if (!pci_read_block(p, 0, d->config, 64))
 132     {
 133       fprintf(stderr, "lspci: Unable to read the standard configuration space header of device %04x:%02x:%02x.%d\n",
 134               p->domain, p->bus, p->dev, p->func);
 135       seen_errors++;
 136       return NULL;
 137     }
 138   if ((d->config[PCI_HEADER_TYPE] & 0x7f) == PCI_HEADER_TYPE_CARDBUS)
 139     {
 140       /* For cardbus bridges, we need to fetch 64 bytes more to get the
 141        * full standard header... */
 142       if (config_fetch(d, 64, 64))
 143         d->config_cached += 64;
 144     }
 145   pci_setup_cache(p, d->config, d->config_cached);
 146   pci_fill_info(p, PCI_FILL_IDENT | PCI_FILL_CLASS);
 147   return d;
 148 }
 149
 150 static void
 151 scan_devices(void)
 152 {
 153   struct device *d;
 154   struct pci_dev *p;
 155
 156   pci_scan_bus(pacc);
 157   for (p=pacc->devices; p; p=p->next)
 158     if (d = scan_device(p))
 159       {
 160         d->next = first_dev;
 161         first_dev = d;
 162       }
 163 }
 164
 165 /*** Config space accesses ***/
 166
 167 static void
 168 check_conf_range(struct device *d, unsigned int pos, unsigned int len)
 169 {
 170   while (len)
 171     if (!d->present[pos])
 172       die("Internal bug: Accessing non-read configuration byte at position %x", pos);
 173     else
 174       pos++, len--;
 175 }
 176
 177 byte
 178 get_conf_byte(struct device *d, unsigned int pos)
 179 {
 180   check_conf_range(d, pos, 1);
 181   return d->config[pos];
 182 }
 183
 184 word
 185 get_conf_word(struct device *d, unsigned int pos)
 186 {
 187   check_conf_range(d, pos, 2);
 188   return d->config[pos] | (d->config[pos+1] << 8);
 189 }
 190
 191 u32
 192 get_conf_long(struct device *d, unsigned int pos)
 193 {
 194   check_conf_range(d, pos, 4);
 195   return d->config[pos] |
 196     (d->config[pos+1] << 8) |
 197     (d->config[pos+2] << 16) |
 198     (d->config[pos+3] << 24);
 199 }
 200
 201 /*** Sorting ***/
 202
 203 static int
 204 compare_them(const void *A, const void *B)
 205 {
 206   const struct pci_dev *a = (*(const struct device **)A)->dev;
 207   const struct pci_dev *b = (*(const struct device **)B)->dev;
 208
 209   if (a->domain < b->domain)
 210     return -1;
 211   if (a->domain > b->domain)
 212     return 1;
 213   if (a->bus < b->bus)
 214     return -1;
 215   if (a->bus > b->bus)
 216     return 1;
 217   if (a->dev < b->dev)
 218     return -1;
 219   if (a->dev > b->dev)
 220     return 1;
 221   if (a->func < b->func)
 222     return -1;
 223   if (a->func > b->func)
 224     return 1;
 225   return 0;
 226 }
 227
 228 static void
 229 sort_them(void)
 230 {
 231   struct device **index, **h, **last_dev;
 232   int cnt;
 233   struct device *d;
 234
 235   cnt = 0;
 236   for (d=first_dev; d; d=d->next)
 237     cnt++;
 238   h = index = alloca(sizeof(struct device *) * cnt);
 239   for (d=first_dev; d; d=d->next)
 240     *h++ = d;
 241   qsort(index, cnt, sizeof(struct device *), compare_them);
 242   last_dev = &first_dev;
 243   h = index;
 244   while (cnt--)
 245     {
 246       *last_dev = *h;
 247       last_dev = &(*h)->next;
 248       h++;
 249     }
 250   *last_dev = NULL;
 251 }
 252
 253 /*** Normal output ***/
 254
 255 static void
 256 show_slot_path(struct device *d)
 257 {
 258   struct pci_dev *p = d->dev;
 259
 260   if (opt_path)
 261     {
 262       struct bus *bus = d->parent_bus;
 263       struct bridge *br = bus->parent_bridge;
 264
 265       if (br && br->br_dev)
 266         {
 267           show_slot_path(br->br_dev);
 268           if (opt_path > 1)
 269             printf("/%02x:%02x.%d", p->bus, p->dev, p->func);
 270           else
 271             printf("/%02x.%d", p->dev, p->func);
 272           return;
 273         }
 274     }
 275   printf("%02x:%02x.%d", p->bus, p->dev, p->func);
 276 }
 277
 278 static void
 279 show_slot_name(struct device *d)
 280 {
 281   struct pci_dev *p = d->dev;
 282
 283   if (!opt_machine ? opt_domains : (p->domain || opt_domains >= 2))
 284     printf("%04x:", p->domain);
 285   show_slot_path(d);
 286 }
 287
 288 void
 289 get_subid(struct device *d, word *subvp, word *subdp)
 290 {
 291   byte htype = get_conf_byte(d, PCI_HEADER_TYPE) & 0x7f;
 292
 293   if (htype == PCI_HEADER_TYPE_NORMAL)
 294     {
 295       *subvp = get_conf_word(d, PCI_SUBSYSTEM_VENDOR_ID);
 296       *subdp = get_conf_word(d, PCI_SUBSYSTEM_ID);
 297     }
 298   else if (htype == PCI_HEADER_TYPE_CARDBUS && d->config_cached >= 128)
 299     {
 300       *subvp = get_conf_word(d, PCI_CB_SUBSYSTEM_VENDOR_ID);
 301       *subdp = get_conf_word(d, PCI_CB_SUBSYSTEM_ID);
 302     }
 303   else
 304     *subvp = *subdp = 0xffff;
 305 }
 306
 307 static void
 308 show_terse(struct device *d)
 309 {
 310   int c;
 311   struct pci_dev *p = d->dev;
 312   char classbuf[128], devbuf[128];
 313
 314   show_slot_name(d);
 315   printf(" %s: %s",
 316          pci_lookup_name(pacc, classbuf, sizeof(classbuf),
 317                          PCI_LOOKUP_CLASS,
 318                          p->device_class),
 319          pci_lookup_name(pacc, devbuf, sizeof(devbuf),
 320                          PCI_LOOKUP_VENDOR | PCI_LOOKUP_DEVICE,
 321                          p->vendor_id, p->device_id));
 322   if (c = get_conf_byte(d, PCI_REVISION_ID))
 323     printf(" (rev %02x)", c);
 324   if (verbose)
 325     {
 326       char *x;
 327       c = get_conf_byte(d, PCI_CLASS_PROG);
 328       x = pci_lookup_name(pacc, devbuf, sizeof(devbuf),
 329                           PCI_LOOKUP_PROGIF | PCI_LOOKUP_NO_NUMBERS,
 330                           p->device_class, c);
 331       if (c || x)
 332         {
 333           printf(" (prog-if %02x", c);
 334           if (x)
 335             printf(" [%s]", x);
 336           putchar(')');
 337         }
 338     }
 339   putchar('\n');
 340
 341   if (verbose || opt_kernel)
 342     {
 343       word subsys_v, subsys_d;
 344       char ssnamebuf[256];
 345
 346       pci_fill_info(p, PCI_FILL_LABEL);
 347
 348       if (p->label)
 349         printf("\tDeviceName: %s", p->label);
 350       get_subid(d, &subsys_v, &subsys_d);
 351       if (subsys_v && subsys_v != 0xffff)
 352         printf("\tSubsystem: %s\n",
 353                 pci_lookup_name(pacc, ssnamebuf, sizeof(ssnamebuf),
 354                         PCI_LOOKUP_SUBSYSTEM | PCI_LOOKUP_VENDOR | PCI_LOOKUP_DEVICE,
 355                         p->vendor_id, p->device_id, subsys_v, subsys_d));
 356     }
 357 }
 358
 359 /*** Verbose output ***/
 360
 361 static void
 362 show_size(u64 x)
 363 {
 364   static const char suffix[][2] = { "", "K", "M", "G", "T" };
 365   unsigned i;
 366   if (!x)
 367     return;
 368   for (i = 0; i < (sizeof(suffix) / sizeof(*suffix) - 1); i++) {
 369     if (x % 1024)
 370       break;
 371     x /= 1024;
 372   }
 373   printf(" [size=%u%s]", (unsigned)x, suffix[i]);
 374 }
 375
 376 static void
 377 show_range(char *prefix, u64 base, u64 limit, int is_64bit)
 378 {
 379   printf("%s:", prefix);
 380   if (base <= limit || verbose > 2)
 381     {
 382       if (is_64bit)
 383         printf(" %016" PCI_U64_FMT_X "-%016" PCI_U64_FMT_X, base, limit);
 384       else
 385         printf(" %08x-%08x", (unsigned) base, (unsigned) limit);
 386     }
 387   if (base <= limit)
 388     show_size(limit - base + 1);
 389   else
 390     printf(" [disabled]");
 391   putchar('\n');
 392 }
 393
 394 static void
 395 show_bases(struct device *d, int cnt)
 396 {
 397   struct pci_dev *p = d->dev;
 398   word cmd = get_conf_word(d, PCI_COMMAND);
 399   int i;
 400   int virtual = 0;
 401
 402   for (i=0; i<cnt; i++)
 403     {
 404       pciaddr_t pos = p->base_addr[i];
 405       pciaddr_t len = (p->known_fields & PCI_FILL_SIZES) ? p->size[i] : 0;
 406       pciaddr_t ioflg = (p->known_fields & PCI_FILL_IO_FLAGS) ? p->flags[i] : 0;
 407       u32 flg = get_conf_long(d, PCI_BASE_ADDRESS_0 + 4*i);
 408       u32 hw_lower;
 409       u32 hw_upper = 0;
 410       int broken = 0;
 411
 412       if (flg == 0xffffffff)
 413         flg = 0;
 414       if (!pos && !flg && !len)
 415         continue;
 416
 417       if (verbose > 1)
 418         printf("\tRegion %d: ", i);
 419       else
 420         putchar('\t');
 421
 422       /* Read address as seen by the hardware */
 423       if (flg & PCI_BASE_ADDRESS_SPACE_IO)
 424         hw_lower = flg & PCI_BASE_ADDRESS_IO_MASK;
 425       else
 426         {
 427           hw_lower = flg & PCI_BASE_ADDRESS_MEM_MASK;
 428           if ((flg & PCI_BASE_ADDRESS_MEM_TYPE_MASK) == PCI_BASE_ADDRESS_MEM_TYPE_64)
 429             {
 430               if (i >= cnt - 1)
 431                 broken = 1;
 432               else
 433                 {
 434                   i++;
 435                   hw_upper = get_conf_long(d, PCI_BASE_ADDRESS_0 + 4*i);
 436                 }
 437             }
 438         }
 439
 440       /* Detect virtual regions, which are reported by the OS, but unassigned in the device */
 441       if (pos && !hw_lower && !hw_upper && !(ioflg & PCI_IORESOURCE_PCI_EA_BEI))
 442         {
 443           flg = pos;
 444           virtual = 1;
 445         }
 446
 447       /* Print base address */
 448       if (flg & PCI_BASE_ADDRESS_SPACE_IO)
 449         {
 450           pciaddr_t a = pos & PCI_BASE_ADDRESS_IO_MASK;
 451           printf("I/O ports at ");
 452           if (a || (cmd & PCI_COMMAND_IO))
 453             printf(PCIADDR_PORT_FMT, a);
 454           else if (hw_lower)
 455             printf("<ignored>");
 456           else
 457             printf("<unassigned>");
 458           if (virtual)
 459             printf(" [virtual]");
 460           else if (!(cmd & PCI_COMMAND_IO))
 461             printf(" [disabled]");
 462         }
 463       else
 464         {
 465           int t = flg & PCI_BASE_ADDRESS_MEM_TYPE_MASK;
 466           pciaddr_t a = pos & PCI_ADDR_MEM_MASK;
 467
 468           printf("Memory at ");
 469           if (broken)
 470             printf("<broken-64-bit-slot>");
 471           else if (a)
 472             printf(PCIADDR_T_FMT, a);
 473           else if (hw_lower || hw_upper)
 474             printf("<ignored>");
 475           else
 476             printf("<unassigned>");
 477           printf(" (%s, %sprefetchable)",
 478                  (t == PCI_BASE_ADDRESS_MEM_TYPE_32) ? "32-bit" :
 479                  (t == PCI_BASE_ADDRESS_MEM_TYPE_64) ? "64-bit" :
 480                  (t == PCI_BASE_ADDRESS_MEM_TYPE_1M) ? "low-1M" : "type 3",
 481                  (flg & PCI_BASE_ADDRESS_MEM_PREFETCH) ? "" : "non-");
 482           if (virtual)
 483             printf(" [virtual]");
 484           else if (!(cmd & PCI_COMMAND_MEMORY))
 485             printf(" [disabled]");
 486         }
 487
 488       if (ioflg & PCI_IORESOURCE_PCI_EA_BEI)
 489         printf(" [enhanced]");
 490
 491       show_size(len);
 492       putchar('\n');
 493     }
 494 }
 495
 496 static void
 497 show_rom(struct device *d, int reg)
 498 {
 499   struct pci_dev *p = d->dev;
 500   pciaddr_t rom = p->rom_base_addr;
 501   pciaddr_t len = (p->known_fields & PCI_FILL_SIZES) ? p->rom_size : 0;
 502   pciaddr_t ioflg = (p->known_fields & PCI_FILL_IO_FLAGS) ? p->rom_flags : 0;
 503   u32 flg = get_conf_long(d, reg);
 504   word cmd = get_conf_word(d, PCI_COMMAND);
 505   int virtual = 0;
 506
 507   if (!rom && !flg && !len)
 508     return;
 509   putchar('\t');
 510   if (ioflg & PCI_IORESOURCE_PCI_EA_BEI)
 511       printf("[enhanced] ");
 512   else if ((rom & PCI_ROM_ADDRESS_MASK) && !(flg & PCI_ROM_ADDRESS_MASK))
 513     {
 514       printf("[virtual] ");
 515       flg = rom;
 516       virtual = 1;
 517     }
 518   printf("Expansion ROM at ");
 519   if (rom & PCI_ROM_ADDRESS_MASK)
 520     printf(PCIADDR_T_FMT, rom & PCI_ROM_ADDRESS_MASK);
 521   else if (flg & PCI_ROM_ADDRESS_MASK)
 522     printf("<ignored>");
 523   else
 524     printf("<unassigned>");
 525   if (!(flg & PCI_ROM_ADDRESS_ENABLE))
 526     printf(" [disabled]");
 527   else if (!virtual && !(cmd & PCI_COMMAND_MEMORY))
 528     printf(" [disabled by cmd]");
 529   show_size(len);
 530   putchar('\n');
 531 }
 532
 533 static void
 534 show_htype0(struct device *d)
 535 {
 536   show_bases(d, 6);
 537   show_rom(d, PCI_ROM_ADDRESS);
 538   show_caps(d, PCI_CAPABILITY_LIST);
 539 }
 540
 541 static void
 542 show_htype1(struct device *d)
 543 {
 544   u32 io_base = get_conf_byte(d, PCI_IO_BASE);
 545   u32 io_limit = get_conf_byte(d, PCI_IO_LIMIT);
 546   u32 io_type = io_base & PCI_IO_RANGE_TYPE_MASK;
 547   u32 mem_base = get_conf_word(d, PCI_MEMORY_BASE);
 548   u32 mem_limit = get_conf_word(d, PCI_MEMORY_LIMIT);
 549   u32 mem_type = mem_base & PCI_MEMORY_RANGE_TYPE_MASK;
 550   u32 pref_base = get_conf_word(d, PCI_PREF_MEMORY_BASE);
 551   u32 pref_limit = get_conf_word(d, PCI_PREF_MEMORY_LIMIT);
 552   u32 pref_type = pref_base & PCI_PREF_RANGE_TYPE_MASK;
 553   word sec_stat = get_conf_word(d, PCI_SEC_STATUS);
 554   word brc = get_conf_word(d, PCI_BRIDGE_CONTROL);
 555
 556   show_bases(d, 2);
 557   printf("\tBus: primary=%02x, secondary=%02x, subordinate=%02x, sec-latency=%d\n",
 558          get_conf_byte(d, PCI_PRIMARY_BUS),
 559          get_conf_byte(d, PCI_SECONDARY_BUS),
 560          get_conf_byte(d, PCI_SUBORDINATE_BUS),
 561          get_conf_byte(d, PCI_SEC_LATENCY_TIMER));
 562
 563   if (io_type != (io_limit & PCI_IO_RANGE_TYPE_MASK) ||
 564       (io_type != PCI_IO_RANGE_TYPE_16 && io_type != PCI_IO_RANGE_TYPE_32))
 565     printf("\t!!! Unknown I/O range types %x/%x\n", io_base, io_limit);
 566   else
 567     {
 568       io_base = (io_base & PCI_IO_RANGE_MASK) << 8;
 569       io_limit = (io_limit & PCI_IO_RANGE_MASK) << 8;
 570       if (io_type == PCI_IO_RANGE_TYPE_32)
 571         {
 572           io_base |= (get_conf_word(d, PCI_IO_BASE_UPPER16) << 16);
 573           io_limit |= (get_conf_word(d, PCI_IO_LIMIT_UPPER16) << 16);
 574         }
 575       show_range("\tI/O behind bridge", io_base, io_limit+0xfff, 0);
 576     }
 577
 578   if (mem_type != (mem_limit & PCI_MEMORY_RANGE_TYPE_MASK) ||
 579       mem_type)
 580     printf("\t!!! Unknown memory range types %x/%x\n", mem_base, mem_limit);
 581   else
 582     {
 583       mem_base = (mem_base & PCI_MEMORY_RANGE_MASK) << 16;
 584       mem_limit = (mem_limit & PCI_MEMORY_RANGE_MASK) << 16;
 585       show_range("\tMemory behind bridge", mem_base, mem_limit + 0xfffff, 0);
 586     }
 587
 588   if (pref_type != (pref_limit & PCI_PREF_RANGE_TYPE_MASK) ||
 589       (pref_type != PCI_PREF_RANGE_TYPE_32 && pref_type != PCI_PREF_RANGE_TYPE_64))
 590     printf("\t!!! Unknown prefetchable memory range types %x/%x\n", pref_base, pref_limit);
 591   else
 592     {
 593       u64 pref_base_64 = (pref_base & PCI_PREF_RANGE_MASK) << 16;
 594       u64 pref_limit_64 = (pref_limit & PCI_PREF_RANGE_MASK) << 16;
 595       if (pref_type == PCI_PREF_RANGE_TYPE_64)
 596         {
 597           pref_base_64 |= (u64) get_conf_long(d, PCI_PREF_BASE_UPPER32) << 32;
 598           pref_limit_64 |= (u64) get_conf_long(d, PCI_PREF_LIMIT_UPPER32) << 32;
 599         }
 600       show_range("\tPrefetchable memory behind bridge", pref_base_64, pref_limit_64 + 0xfffff, (pref_type == PCI_PREF_RANGE_TYPE_64));
 601     }
 602
 603   if (verbose > 1)
 604     printf("\tSecondary status: 66MHz%c FastB2B%c ParErr%c DEVSEL=%s >TAbort%c <TAbort%c <MAbort%c <SERR%c <PERR%c\n",
 605              FLAG(sec_stat, PCI_STATUS_66MHZ),
 606              FLAG(sec_stat, PCI_STATUS_FAST_BACK),
 607              FLAG(sec_stat, PCI_STATUS_PARITY),
 608              ((sec_stat & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_SLOW) ? "slow" :
 609              ((sec_stat & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_MEDIUM) ? "medium" :
 610              ((sec_stat & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_FAST) ? "fast" : "??",
 611              FLAG(sec_stat, PCI_STATUS_SIG_TARGET_ABORT),
 612              FLAG(sec_stat, PCI_STATUS_REC_TARGET_ABORT),
 613              FLAG(sec_stat, PCI_STATUS_REC_MASTER_ABORT),
 614              FLAG(sec_stat, PCI_STATUS_SIG_SYSTEM_ERROR),
 615              FLAG(sec_stat, PCI_STATUS_DETECTED_PARITY));
 616
 617   show_rom(d, PCI_ROM_ADDRESS1);
 618
 619   if (verbose > 1)
 620     {
 621       printf("\tBridgeCtl: Parity%c SERR%c NoISA%c VGA%c VGA16%c MAbort%c >Reset%c FastB2B%c\n",
 622         FLAG(brc, PCI_BRIDGE_CTL_PARITY),
 623         FLAG(brc, PCI_BRIDGE_CTL_SERR),
 624         FLAG(brc, PCI_BRIDGE_CTL_NO_ISA),
 625         FLAG(brc, PCI_BRIDGE_CTL_VGA),
 626         FLAG(brc, PCI_BRIDGE_CTL_VGA_16BIT),
 627         FLAG(brc, PCI_BRIDGE_CTL_MASTER_ABORT),
 628         FLAG(brc, PCI_BRIDGE_CTL_BUS_RESET),
 629         FLAG(brc, PCI_BRIDGE_CTL_FAST_BACK));
 630       printf("\t\tPriDiscTmr%c SecDiscTmr%c DiscTmrStat%c DiscTmrSERREn%c\n",
 631         FLAG(brc, PCI_BRIDGE_CTL_PRI_DISCARD_TIMER),
 632         FLAG(brc, PCI_BRIDGE_CTL_SEC_DISCARD_TIMER),
 633         FLAG(brc, PCI_BRIDGE_CTL_DISCARD_TIMER_STATUS),
 634         FLAG(brc, PCI_BRIDGE_CTL_DISCARD_TIMER_SERR_EN));
 635     }
 636
 637   show_caps(d, PCI_CAPABILITY_LIST);
 638 }
 639
 640 static void
 641 show_htype2(struct device *d)
 642 {
 643   int i;
 644   word cmd = get_conf_word(d, PCI_COMMAND);
 645   word brc = get_conf_word(d, PCI_CB_BRIDGE_CONTROL);
 646   word exca;
 647   int verb = verbose > 2;
 648
 649   show_bases(d, 1);
 650   printf("\tBus: primary=%02x, secondary=%02x, subordinate=%02x, sec-latency=%d\n",
 651          get_conf_byte(d, PCI_CB_PRIMARY_BUS),
 652          get_conf_byte(d, PCI_CB_CARD_BUS),
 653          get_conf_byte(d, PCI_CB_SUBORDINATE_BUS),
 654          get_conf_byte(d, PCI_CB_LATENCY_TIMER));
 655   for (i=0; i<2; i++)
 656     {
 657       int p = 8*i;
 658       u32 base = get_conf_long(d, PCI_CB_MEMORY_BASE_0 + p);
 659       u32 limit = get_conf_long(d, PCI_CB_MEMORY_LIMIT_0 + p);
 660       limit = limit + 0xfff;
 661       if (base <= limit || verb)
 662         printf("\tMemory window %d: %08x-%08x%s%s\n", i, base, limit,
 663                (cmd & PCI_COMMAND_MEMORY) ? "" : " [disabled]",
 664                (brc & (PCI_CB_BRIDGE_CTL_PREFETCH_MEM0 << i)) ? " (prefetchable)" : "");
 665     }
 666   for (i=0; i<2; i++)
 667     {
 668       int p = 8*i;
 669       u32 base = get_conf_long(d, PCI_CB_IO_BASE_0 + p);
 670       u32 limit = get_conf_long(d, PCI_CB_IO_LIMIT_0 + p);
 671       if (!(base & PCI_IO_RANGE_TYPE_32))
 672         {
 673           base &= 0xffff;
 674           limit &= 0xffff;
 675         }
 676       base &= PCI_CB_IO_RANGE_MASK;
 677       limit = (limit & PCI_CB_IO_RANGE_MASK) + 3;
 678       if (base <= limit || verb)
 679         printf("\tI/O window %d: %08x-%08x%s\n", i, base, limit,
 680                (cmd & PCI_COMMAND_IO) ? "" : " [disabled]");
 681     }
 682
 683   if (get_conf_word(d, PCI_CB_SEC_STATUS) & PCI_STATUS_SIG_SYSTEM_ERROR)
 684     printf("\tSecondary status: SERR\n");
 685   if (verbose > 1)
 686     printf("\tBridgeCtl: Parity%c SERR%c ISA%c VGA%c MAbort%c >Reset%c 16bInt%c PostWrite%c\n",
 687            FLAG(brc, PCI_CB_BRIDGE_CTL_PARITY),
 688            FLAG(brc, PCI_CB_BRIDGE_CTL_SERR),
 689            FLAG(brc, PCI_CB_BRIDGE_CTL_ISA),
 690            FLAG(brc, PCI_CB_BRIDGE_CTL_VGA),
 691            FLAG(brc, PCI_CB_BRIDGE_CTL_MASTER_ABORT),
 692            FLAG(brc, PCI_CB_BRIDGE_CTL_CB_RESET),
 693            FLAG(brc, PCI_CB_BRIDGE_CTL_16BIT_INT),
 694            FLAG(brc, PCI_CB_BRIDGE_CTL_POST_WRITES));
 695
 696   if (d->config_cached < 128)
 697     {
 698       printf("\t<access denied to the rest>\n");
 699       return;
 700     }
 701
 702   exca = get_conf_word(d, PCI_CB_LEGACY_MODE_BASE);
 703   if (exca)
 704     printf("\t16-bit legacy interface ports at %04x\n", exca);
 705   show_caps(d, PCI_CB_CAPABILITY_LIST);
 706 }
 707
 708 static void
 709 show_verbose(struct device *d)
 710 {
 711   struct pci_dev *p = d->dev;
 712   word status = get_conf_word(d, PCI_STATUS);
 713   word cmd = get_conf_word(d, PCI_COMMAND);
 714   word class = p->device_class;
 715   byte bist = get_conf_byte(d, PCI_BIST);
 716   byte htype = get_conf_byte(d, PCI_HEADER_TYPE) & 0x7f;
 717   byte latency = get_conf_byte(d, PCI_LATENCY_TIMER);
 718   byte cache_line = get_conf_byte(d, PCI_CACHE_LINE_SIZE);
 719   byte max_lat, min_gnt;
 720   byte int_pin = get_conf_byte(d, PCI_INTERRUPT_PIN);
 721   unsigned int irq;
 722   char *dt_node;
 723
 724   show_terse(d);
 725
 726   pci_fill_info(p, PCI_FILL_IRQ | PCI_FILL_BASES | PCI_FILL_ROM_BASE | PCI_FILL_SIZES |
 727     PCI_FILL_PHYS_SLOT | PCI_FILL_NUMA_NODE | PCI_FILL_DT_NODE);
 728   irq = p->irq;
 729
 730   switch (htype)
 731     {
 732     case PCI_HEADER_TYPE_NORMAL:
 733       if (class == PCI_CLASS_BRIDGE_PCI)
 734         printf("\t!!! Invalid class %04x for header type %02x\n", class, htype);
 735       max_lat = get_conf_byte(d, PCI_MAX_LAT);
 736       min_gnt = get_conf_byte(d, PCI_MIN_GNT);
 737       break;
 738     case PCI_HEADER_TYPE_BRIDGE:
 739       if ((class >> 8) != PCI_BASE_CLASS_BRIDGE)
 740         printf("\t!!! Invalid class %04x for header type %02x\n", class, htype);
 741       min_gnt = max_lat = 0;
 742       break;
 743     case PCI_HEADER_TYPE_CARDBUS:
 744       if ((class >> 8) != PCI_BASE_CLASS_BRIDGE)
 745         printf("\t!!! Invalid class %04x for header type %02x\n", class, htype);
 746       min_gnt = max_lat = 0;
 747       break;
 748     default:
 749       printf("\t!!! Unknown header type %02x\n", htype);
 750       return;
 751     }
 752
 753   if (p->phy_slot)
 754     printf("\tPhysical Slot: %s\n", p->phy_slot);
 755
 756   if (dt_node = pci_get_string_property(p, PCI_FILL_DT_NODE))
 757     printf("\tDevice tree node: %s\n", dt_node);
 758
 759   if (verbose > 1)
 760     {
 761       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",
 762              FLAG(cmd, PCI_COMMAND_IO),
 763              FLAG(cmd, PCI_COMMAND_MEMORY),
 764              FLAG(cmd, PCI_COMMAND_MASTER),
 765              FLAG(cmd, PCI_COMMAND_SPECIAL),
 766              FLAG(cmd, PCI_COMMAND_INVALIDATE),
 767              FLAG(cmd, PCI_COMMAND_VGA_PALETTE),
 768              FLAG(cmd, PCI_COMMAND_PARITY),
 769              FLAG(cmd, PCI_COMMAND_WAIT),
 770              FLAG(cmd, PCI_COMMAND_SERR),
 771              FLAG(cmd, PCI_COMMAND_FAST_BACK),
 772              FLAG(cmd, PCI_COMMAND_DISABLE_INTx));
 773       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",
 774              FLAG(status, PCI_STATUS_CAP_LIST),
 775              FLAG(status, PCI_STATUS_66MHZ),
 776              FLAG(status, PCI_STATUS_UDF),
 777              FLAG(status, PCI_STATUS_FAST_BACK),
 778              FLAG(status, PCI_STATUS_PARITY),
 779              ((status & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_SLOW) ? "slow" :
 780              ((status & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_MEDIUM) ? "medium" :
 781              ((status & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_FAST) ? "fast" : "??",
 782              FLAG(status, PCI_STATUS_SIG_TARGET_ABORT),
 783              FLAG(status, PCI_STATUS_REC_TARGET_ABORT),
 784              FLAG(status, PCI_STATUS_REC_MASTER_ABORT),
 785              FLAG(status, PCI_STATUS_SIG_SYSTEM_ERROR),
 786              FLAG(status, PCI_STATUS_DETECTED_PARITY),
 787              FLAG(status, PCI_STATUS_INTx));
 788       if (cmd & PCI_COMMAND_MASTER)
 789         {
 790           printf("\tLatency: %d", latency);
 791           if (min_gnt || max_lat)
 792             {
 793               printf(" (");
 794               if (min_gnt)
 795                 printf("%dns min", min_gnt*250);
 796               if (min_gnt && max_lat)
 797                 printf(", ");
 798               if (max_lat)
 799                 printf("%dns max", max_lat*250);
 800               putchar(')');
 801             }
 802           if (cache_line)
 803             printf(", Cache Line Size: %d bytes", cache_line * 4);
 804           putchar('\n');
 805         }
 806       if (int_pin || irq)
 807         printf("\tInterrupt: pin %c routed to IRQ " PCIIRQ_FMT "\n",
 808                (int_pin ? 'A' + int_pin - 1 : '?'), irq);
 809       if (p->numa_node != -1)
 810         printf("\tNUMA node: %d\n", p->numa_node);
 811     }
 812   else
 813     {
 814       printf("\tFlags: ");
 815       if (cmd & PCI_COMMAND_MASTER)
 816         printf("bus master, ");
 817       if (cmd & PCI_COMMAND_VGA_PALETTE)
 818         printf("VGA palette snoop, ");
 819       if (cmd & PCI_COMMAND_WAIT)
 820         printf("stepping, ");
 821       if (cmd & PCI_COMMAND_FAST_BACK)
 822         printf("fast Back2Back, ");
 823       if (status & PCI_STATUS_66MHZ)
 824         printf("66MHz, ");
 825       if (status & PCI_STATUS_UDF)
 826         printf("user-definable features, ");
 827       printf("%s devsel",
 828              ((status & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_SLOW) ? "slow" :
 829              ((status & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_MEDIUM) ? "medium" :
 830              ((status & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_FAST) ? "fast" : "??");
 831       if (cmd & PCI_COMMAND_MASTER)
 832         printf(", latency %d", latency);
 833       if (irq)
 834         printf(", IRQ " PCIIRQ_FMT, irq);
 835       if (p->numa_node != -1)
 836         printf(", NUMA node %d", p->numa_node);
 837       putchar('\n');
 838     }
 839
 840   if (bist & PCI_BIST_CAPABLE)
 841     {
 842       if (bist & PCI_BIST_START)
 843         printf("\tBIST is running\n");
 844       else
 845         printf("\tBIST result: %02x\n", bist & PCI_BIST_CODE_MASK);
 846     }
 847
 848   switch (htype)
 849     {
 850     case PCI_HEADER_TYPE_NORMAL:
 851       show_htype0(d);
 852       break;
 853     case PCI_HEADER_TYPE_BRIDGE:
 854       show_htype1(d);
 855       break;
 856     case PCI_HEADER_TYPE_CARDBUS:
 857       show_htype2(d);
 858       break;
 859     }
 860 }
 861
 862 /*** Machine-readable dumps ***/
 863
 864 static void
 865 show_hex_dump(struct device *d)
 866 {
 867   unsigned int i, cnt;
 868
 869   cnt = d->config_cached;
 870   if (opt_hex >= 3 && config_fetch(d, cnt, 256-cnt))
 871     {
 872       cnt = 256;
 873       if (opt_hex >= 4 && config_fetch(d, 256, 4096-256))
 874         cnt = 4096;
 875     }
 876
 877   for (i=0; i<cnt; i++)
 878     {
 879       if (! (i & 15))
 880         printf("%02x:", i);
 881       printf(" %02x", get_conf_byte(d, i));
 882       if ((i & 15) == 15)
 883         putchar('\n');
 884     }
 885 }
 886
 887 static void
 888 print_shell_escaped(char *c)
 889 {
 890   printf(" \"");
 891   while (*c)
 892     {
 893       if (*c == '"' || *c == '\\')
 894         putchar('\\');
 895       putchar(*c++);
 896     }
 897   putchar('"');
 898 }
 899
 900 static void
 901 show_machine(struct device *d)
 902 {
 903   struct pci_dev *p = d->dev;
 904   int c;
 905   word sv_id, sd_id;
 906   char classbuf[128], vendbuf[128], devbuf[128], svbuf[128], sdbuf[128];
 907   char *dt_node;
 908
 909   get_subid(d, &sv_id, &sd_id);
 910
 911   if (verbose)
 912     {
 913       pci_fill_info(p, PCI_FILL_PHYS_SLOT | PCI_FILL_NUMA_NODE | PCI_FILL_DT_NODE);
 914       printf((opt_machine >= 2) ? "Slot:\t" : "Device:\t");
 915       show_slot_name(d);
 916       putchar('\n');
 917       printf("Class:\t%s\n",
 918              pci_lookup_name(pacc, classbuf, sizeof(classbuf), PCI_LOOKUP_CLASS, p->device_class));
 919       printf("Vendor:\t%s\n",
 920              pci_lookup_name(pacc, vendbuf, sizeof(vendbuf), PCI_LOOKUP_VENDOR, p->vendor_id, p->device_id));
 921       printf("Device:\t%s\n",
 922              pci_lookup_name(pacc, devbuf, sizeof(devbuf), PCI_LOOKUP_DEVICE, p->vendor_id, p->device_id));
 923       if (sv_id && sv_id != 0xffff)
 924         {
 925           printf("SVendor:\t%s\n",
 926                  pci_lookup_name(pacc, svbuf, sizeof(svbuf), PCI_LOOKUP_SUBSYSTEM | PCI_LOOKUP_VENDOR, sv_id));
 927           printf("SDevice:\t%s\n",
 928                  pci_lookup_name(pacc, sdbuf, sizeof(sdbuf), PCI_LOOKUP_SUBSYSTEM | PCI_LOOKUP_DEVICE, p->vendor_id, p->device_id, sv_id, sd_id));
 929         }
 930       if (p->phy_slot)
 931         printf("PhySlot:\t%s\n", p->phy_slot);
 932       if (c = get_conf_byte(d, PCI_REVISION_ID))
 933         printf("Rev:\t%02x\n", c);
 934       if (c = get_conf_byte(d, PCI_CLASS_PROG))
 935         printf("ProgIf:\t%02x\n", c);
 936       if (opt_kernel)
 937         show_kernel_machine(d);
 938       if (p->numa_node != -1)
 939         printf("NUMANode:\t%d\n", p->numa_node);
 940       if (dt_node = pci_get_string_property(p, PCI_FILL_DT_NODE))
 941         printf("DTNode:\t%s\n", dt_node);
 942     }
 943   else
 944     {
 945       show_slot_name(d);
 946       print_shell_escaped(pci_lookup_name(pacc, classbuf, sizeof(classbuf), PCI_LOOKUP_CLASS, p->device_class));
 947       print_shell_escaped(pci_lookup_name(pacc, vendbuf, sizeof(vendbuf), PCI_LOOKUP_VENDOR, p->vendor_id, p->device_id));
 948       print_shell_escaped(pci_lookup_name(pacc, devbuf, sizeof(devbuf), PCI_LOOKUP_DEVICE, p->vendor_id, p->device_id));
 949       if (c = get_conf_byte(d, PCI_REVISION_ID))
 950         printf(" -r%02x", c);
 951       if (c = get_conf_byte(d, PCI_CLASS_PROG))
 952         printf(" -p%02x", c);
 953       if (sv_id && sv_id != 0xffff)
 954         {
 955           print_shell_escaped(pci_lookup_name(pacc, svbuf, sizeof(svbuf), PCI_LOOKUP_SUBSYSTEM | PCI_LOOKUP_VENDOR, sv_id));
 956           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));
 957         }
 958       else
 959         printf(" \"\" \"\"");
 960       putchar('\n');
 961     }
 962 }
 963
 964 /*** Main show function ***/
 965
 966 void
 967 show_device(struct device *d)
 968 {
 969   if (opt_machine)
 970     show_machine(d);
 971   else
 972     {
 973       if (verbose)
 974         show_verbose(d);
 975       else
 976         show_terse(d);
 977       if (opt_kernel || verbose)
 978         show_kernel(d);
 979     }
 980   if (opt_hex)
 981     show_hex_dump(d);
 982   if (verbose || opt_hex)
 983     putchar('\n');
 984 }
 985
 986 static void
 987 show(void)
 988 {
 989   struct device *d;
 990
 991   for (d=first_dev; d; d=d->next)
 992     if (pci_filter_match(&filter, d->dev))
 993       show_device(d);
 994 }
 995
 996 /* Main */
 997
 998 int
 999 main(int argc, char **argv)
1000 {
1001   int i;
1002   char *msg;
1003
1004   if (argc == 2 && !strcmp(argv[1], "--version"))
1005     {
1006       puts("lspci version " PCIUTILS_VERSION);
1007       return 0;
1008     }
1009
1010   pacc = pci_alloc();
1011   pacc->error = die;
1012   pci_filter_init(pacc, &filter);
1013
1014   while ((i = getopt(argc, argv, options)) != -1)
1015     switch (i)
1016       {
1017       case 'n':
1018         pacc->numeric_ids++;
1019         break;
1020       case 'v':
1021         verbose++;
1022         break;
1023       case 'b':
1024         pacc->buscentric = 1;
1025         break;
1026       case 's':
1027         if (msg = pci_filter_parse_slot(&filter, optarg))
1028           die("-s: %s", msg);
1029         opt_filter = 1;
1030         break;
1031       case 'd':
1032         if (msg = pci_filter_parse_id(&filter, optarg))
1033           die("-d: %s", msg);
1034         opt_filter = 1;
1035         break;
1036       case 'x':
1037         opt_hex++;
1038         break;
1039       case 'P':
1040         opt_path++;
1041         need_topology = 1;
1042         break;
1043       case 't':
1044         opt_tree++;
1045         need_topology = 1;
1046         break;
1047       case 'i':
1048         pci_set_name_list_path(pacc, optarg, 0);
1049         break;
1050       case 'm':
1051         opt_machine++;
1052         break;
1053       case 'p':
1054         opt_pcimap = optarg;
1055         break;
1056 #ifdef PCI_OS_LINUX
1057       case 'k':
1058         opt_kernel++;
1059         break;
1060 #endif
1061       case 'M':
1062         opt_map_mode++;
1063         break;
1064       case 'D':
1065         opt_domains = 2;
1066         break;
1067 #ifdef PCI_USE_DNS
1068       case 'q':
1069         opt_query_dns++;
1070         break;
1071       case 'Q':
1072         opt_query_all = 1;
1073         break;
1074 #else
1075       case 'q':
1076       case 'Q':
1077         die("DNS queries are not available in this version");
1078 #endif
1079       default:
1080         if (parse_generic_option(i, pacc, optarg))
1081           break;
1082       bad:
1083         fprintf(stderr, help_msg, pacc->id_file_name);
1084         return 1;
1085       }
1086   if (optind < argc)
1087     goto bad;
1088
1089   if (opt_query_dns)
1090     {
1091       pacc->id_lookup_mode |= PCI_LOOKUP_NETWORK;
1092       if (opt_query_dns > 1)
1093         pacc->id_lookup_mode |= PCI_LOOKUP_REFRESH_CACHE;
1094     }
1095   if (opt_query_all)
1096     pacc->id_lookup_mode |= PCI_LOOKUP_NETWORK | PCI_LOOKUP_SKIP_LOCAL;
1097
1098   pci_init(pacc);
1099   if (opt_map_mode)
1100     {
1101       if (need_topology)
1102         die("Bus mapping mode does not recognize bus topology");
1103       map_the_bus();
1104     }
1105   else
1106     {
1107       scan_devices();
1108       sort_them();
1109       if (need_topology)
1110         grow_tree();
1111       if (opt_tree)
1112         show_forest(opt_filter ? &filter : NULL);
1113       else
1114         show();
1115     }
1116   show_kernel_cleanup();
1117   pci_cleanup(pacc);
1118
1119   return (seen_errors ? 2 : 0);
1120 }