2 * $Id: lspci.c,v 1.28 1999/08/20 08:30:44 mj Exp $
4 * Linux PCI Utilities -- List All PCI Devices
6 * Copyright (c) 1997--1999 Martin Mares <mj@atrey.karlin.mff.cuni.cz>
8 * Can be freely distributed and used under the terms of the GNU GPL.
21 static int verbose; /* Show detailed information */
22 static int buscentric_view; /* Show bus addresses/IRQ's instead of CPU-visible ones */
23 static int show_hex; /* Show contents of config space as hexadecimal numbers */
24 static struct pci_filter filter; /* Device filter */
25 static int show_tree; /* Show bus tree */
26 static int machine_readable; /* Generate machine-readable output */
27 static int map_mode; /* Bus mapping mode enabled */
29 static char options[] = "nvbxs:d:ti:mgM" GENERIC_OPTIONS ;
31 static char help_msg[] = "\
32 Usage: lspci [<switches>]\n\
35 -n\t\tShow numeric ID's\n\
36 -b\t\tBus-centric view (PCI addresses and IRQ's instead of those seen by the CPU)\n\
37 -x\t\tShow hex-dump of config space\n\
38 -s [[<bus>]:][<slot>][.[<func>]]\tShow only devices in selected slots\n\
39 -d [<vendor>]:[<device>]\tShow only selected devices\n\
40 -t\t\tShow bus tree\n\
41 -m\t\tProduce machine-readable output\n\
42 -i <file>\tUse specified ID database instead of %s\n\
43 -M\t\tEnable `bus mapping' mode (dangerous; root only)\n"
47 /* Communication with libpci */
49 static struct pci_access *pacc;
51 /* Format strings used for IRQ numbers and memory addresses */
54 #define IRQ_FORMAT "%08x"
56 #define IRQ_FORMAT "%d"
59 #ifdef HAVE_64BIT_ADDRESS
60 #ifdef HAVE_LONG_ADDRESS
61 #define ADDR_FORMAT "%016Lx"
63 #define ADDR_FORMAT "%016lx"
66 #define ADDR_FORMAT "%08lx"
70 #define IO_FORMAT "%016Lx"
71 #elif defined(HAVE_64BIT_ADDRESS)
72 #define IO_FORMAT "%04Lx"
74 #define IO_FORMAT "%04lx"
77 /* Our view of the PCI bus */
82 unsigned int config_cnt;
86 static struct device *first_dev;
88 static struct device *
89 scan_device(struct pci_dev *p)
91 int how_much = (show_hex > 2) ? 256 : 64;
94 if (!pci_filter_match(&filter, p))
96 d = xmalloc(sizeof(struct device));
99 if (!pci_read_block(p, 0, d->config, how_much))
100 die("Unable to read %d bytes of configuration space.", how_much);
101 if (how_much < 128 && (d->config[PCI_HEADER_TYPE] & 0x7f) == PCI_HEADER_TYPE_CARDBUS)
103 /* For cardbus bridges, we need to fetch 64 bytes more to get the full standard header... */
104 if (!pci_read_block(p, 0, d->config+64, 64))
105 die("Unable to read cardbus bridge extension data.");
108 d->config_cnt = how_much;
109 pci_setup_cache(p, d->config, d->config_cnt);
110 pci_fill_info(p, PCI_FILL_IDENT | PCI_FILL_IRQ | PCI_FILL_BASES | PCI_FILL_ROM_BASE | PCI_FILL_SIZES);
121 for(p=pacc->devices; p; p=p->next)
122 if (d = scan_device(p))
132 static int is_root = -1;
135 is_root = !geteuid();
140 config_fetch(struct device *d, unsigned int pos, unsigned int len)
142 if (pos + len < d->config_cnt)
144 if (pacc->method != PCI_ACCESS_DUMP && !check_root())
146 return pci_read_block(d->dev, pos, d->config + pos, len);
149 /* Config space accesses */
152 get_conf_byte(struct device *d, unsigned int pos)
154 return d->config[pos];
158 get_conf_word(struct device *d, unsigned int pos)
160 return d->config[pos] | (d->config[pos+1] << 8);
164 get_conf_long(struct device *d, unsigned int pos)
166 return d->config[pos] |
167 (d->config[pos+1] << 8) |
168 (d->config[pos+2] << 16) |
169 (d->config[pos+3] << 24);
175 compare_them(const void *A, const void *B)
177 const struct pci_dev *a = (*(const struct device **)A)->dev;
178 const struct pci_dev *b = (*(const struct device **)B)->dev;
188 if (a->func < b->func)
190 if (a->func > b->func)
198 struct device **index, **h, **last_dev;
203 for(d=first_dev; d; d=d->next)
205 h = index = alloca(sizeof(struct device *) * cnt);
206 for(d=first_dev; d; d=d->next)
208 qsort(index, cnt, sizeof(struct device *), compare_them);
209 last_dev = &first_dev;
214 last_dev = &(*h)->next;
222 #define FLAG(x,y) ((x & y) ? '+' : '-')
225 show_terse(struct device *d)
228 struct pci_dev *p = d->dev;
229 byte classbuf[128], devbuf[128];
231 printf("%02x:%02x.%x %s: %s",
235 pci_lookup_name(pacc, classbuf, sizeof(classbuf),
237 get_conf_word(d, PCI_CLASS_DEVICE), 0),
238 pci_lookup_name(pacc, devbuf, sizeof(devbuf),
239 PCI_LOOKUP_VENDOR | PCI_LOOKUP_DEVICE,
240 p->vendor_id, p->device_id));
241 if (c = get_conf_byte(d, PCI_REVISION_ID))
242 printf(" (rev %02x)", c);
243 if (verbose && (c = get_conf_byte(d, PCI_CLASS_PROG)))
244 printf(" (prog-if %02x)", c);
249 show_size(pciaddr_t x)
255 printf("%d", (int) x);
256 else if (x < 1048576)
257 printf("%dK", (int)(x / 1024));
258 else if (x < 0x80000000)
259 printf("%dM", (int)(x / 1048576));
261 printf(ADDR_FORMAT, x);
266 show_bases(struct device *d, int cnt)
268 struct pci_dev *p = d->dev;
269 word cmd = get_conf_word(d, PCI_COMMAND);
274 pciaddr_t pos = p->base_addr[i];
275 pciaddr_t len = (p->known_fields & PCI_FILL_SIZES) ? p->size[i] : 0;
276 u32 flg = get_conf_long(d, PCI_BASE_ADDRESS_0 + 4*i);
277 if (flg == 0xffffffff)
279 if (!pos && !flg && !len)
282 printf("\tRegion %d: ", i);
285 if (pos && !flg) /* Reported by the OS, but not by the device */
287 printf("[virtual] ");
290 if (flg & PCI_BASE_ADDRESS_SPACE_IO)
292 pciaddr_t a = pos & PCI_BASE_ADDRESS_IO_MASK;
293 printf("I/O ports at ");
295 printf(IO_FORMAT, a);
296 else if (flg & PCI_BASE_ADDRESS_IO_MASK)
299 printf("<unassigned>");
300 if (!(cmd & PCI_COMMAND_IO))
301 printf(" [disabled]");
305 int t = flg & PCI_BASE_ADDRESS_MEM_TYPE_MASK;
306 pciaddr_t a = pos & PCI_ADDR_MEM_MASK;
310 printf("Memory at ");
311 if (t == PCI_BASE_ADDRESS_MEM_TYPE_64)
315 printf("<invalid-64bit-slot>");
321 z = get_conf_long(d, PCI_BASE_ADDRESS_0 + 4*i);
325 printf("%08x" ADDR_FORMAT, z, a);
327 printf("<unassigned>");
335 printf(ADDR_FORMAT, a);
337 printf(((flg & PCI_BASE_ADDRESS_MEM_MASK) || z) ? "<ignored>" : "<unassigned>");
339 printf(" (%s, %sprefetchable)",
340 (t == PCI_BASE_ADDRESS_MEM_TYPE_32) ? "32-bit" :
341 (t == PCI_BASE_ADDRESS_MEM_TYPE_64) ? "64-bit" :
342 (t == PCI_BASE_ADDRESS_MEM_TYPE_1M) ? "low-1M" : "type 3",
343 (flg & PCI_BASE_ADDRESS_MEM_PREFETCH) ? "" : "non-");
344 if (!(cmd & PCI_COMMAND_MEMORY))
345 printf(" [disabled]");
353 show_pm(struct device *d, int where, int cap)
357 printf("Power Management version %d\n", cap & PCI_PM_CAP_VER_MASK);
360 printf("\t\tFlags: PMEClk%c AuxPwr%c DSI%c D1%c D2%c PME%c\n",
361 FLAG(cap, PCI_PM_CAP_PME_CLOCK),
362 FLAG(cap, PCI_PM_CAP_AUX_POWER),
363 FLAG(cap, PCI_PM_CAP_DSI),
364 FLAG(cap, PCI_PM_CAP_D1),
365 FLAG(cap, PCI_PM_CAP_D2),
366 FLAG(cap, PCI_PM_CAP_PME));
367 config_fetch(d, where + PCI_PM_CTRL, PCI_PM_SIZEOF - PCI_PM_CTRL);
368 t = get_conf_word(d, where + PCI_PM_CTRL);
369 printf("\t\tStatus: D%d PME-Enable%c DSel=%x DScale=%x PME%c\n",
370 t & PCI_PM_CTRL_STATE_MASK,
371 FLAG(t, PCI_PM_CTRL_PME_ENABLE),
372 (t & PCI_PM_CTRL_DATA_SEL_MASK) >> 9,
373 (t & PCI_PM_CTRL_DATA_SCALE_MASK) >> 13,
374 FLAG(t, PCI_PM_CTRL_PME_STATUS));
378 show_agp(struct device *d, int where, int cap)
383 printf("AGP version %x.%x\n", cap/16, cap%16);
386 config_fetch(d, where + PCI_AGP_STATUS, PCI_AGP_SIZEOF - PCI_AGP_STATUS);
387 t = get_conf_long(d, where + PCI_AGP_STATUS);
388 printf("\t\tStatus: RQ=%d SBA%c 64bit%c FW%c Rate=%s%s%s\n",
389 (t & PCI_AGP_STATUS_RQ_MASK) >> 24U,
390 FLAG(t, PCI_AGP_STATUS_SBA),
391 FLAG(t, PCI_AGP_STATUS_64BIT),
392 FLAG(t, PCI_AGP_STATUS_FW),
393 (t & PCI_AGP_STATUS_RATE4) ? "4" : "",
394 (t & PCI_AGP_STATUS_RATE2) ? "2" : "",
395 (t & PCI_AGP_STATUS_RATE1) ? "1" : "");
396 t = get_conf_long(d, where + PCI_AGP_COMMAND);
397 printf("\t\tCommand: RQ=%d SBA%c AGP%c 64bit%c FW%c Rate=%s%s%s\n",
398 (t & PCI_AGP_COMMAND_RQ_MASK) >> 24U,
399 FLAG(t, PCI_AGP_COMMAND_SBA),
400 FLAG(t, PCI_AGP_COMMAND_AGP),
401 FLAG(t, PCI_AGP_COMMAND_64BIT),
402 FLAG(t, PCI_AGP_COMMAND_FW),
403 (t & PCI_AGP_COMMAND_RATE4) ? "4" : "",
404 (t & PCI_AGP_COMMAND_RATE2) ? "2" : "",
405 (t & PCI_AGP_COMMAND_RATE1) ? "1" : "");
409 show_rom(struct device *d)
411 struct pci_dev *p = d->dev;
412 pciaddr_t rom = p->rom_base_addr;
413 pciaddr_t len = (p->known_fields & PCI_FILL_SIZES) ? p->rom_size : 0;
417 printf("\tExpansion ROM at ");
418 if (rom & PCI_ROM_ADDRESS_MASK)
419 printf(ADDR_FORMAT, rom & PCI_ROM_ADDRESS_MASK);
421 printf("<unassigned>");
422 if (!(rom & PCI_ROM_ADDRESS_ENABLE))
423 printf(" [disabled]");
429 show_msi(struct device *d, int where, int cap)
435 printf("Message Signalled Interrupts: 64bit%c Queue=%d/%d Enable%c\n",
436 FLAG(cap, PCI_MSI_FLAGS_64BIT),
437 (cap & PCI_MSI_FLAGS_QSIZE) >> 4,
438 (cap & PCI_MSI_FLAGS_QMASK) >> 1,
439 FLAG(cap, PCI_MSI_FLAGS_ENABLE));
442 is64 = cap & PCI_MSI_FLAGS_64BIT;
443 config_fetch(d, where + PCI_MSI_ADDRESS_LO, (is64 ? PCI_MSI_DATA_64 : PCI_MSI_DATA_32) + 2 - PCI_MSI_ADDRESS_LO);
444 printf("\t\tAddress: ");
447 t = get_conf_long(d, where + PCI_MSI_ADDRESS_HI);
448 w = get_conf_word(d, where + PCI_MSI_DATA_64);
452 w = get_conf_word(d, where + PCI_MSI_DATA_32);
453 t = get_conf_long(d, where + PCI_MSI_ADDRESS_LO);
454 printf("%08x Data: %04x\n", t, w);
460 int esr = cap & 0xff;
463 printf("Slot ID: %d slots, First%c, chassis %02x\n",
464 esr & PCI_SID_ESR_NSLOTS,
465 FLAG(esr, PCI_SID_ESR_FIC),
470 show_caps(struct device *d)
472 if (get_conf_word(d, PCI_STATUS) & PCI_STATUS_CAP_LIST)
474 int where = get_conf_byte(d, PCI_CAPABILITY_LIST) & ~3;
478 printf("\tCapabilities: ");
479 if (!config_fetch(d, where, 4))
481 puts("<available only to root>");
484 id = get_conf_byte(d, where + PCI_CAP_LIST_ID);
485 next = get_conf_byte(d, where + PCI_CAP_LIST_NEXT) & ~3;
486 cap = get_conf_word(d, where + PCI_CAP_FLAGS);
487 printf("[%02x] ", where);
490 printf("<chain broken>\n");
496 show_pm(d, where, cap);
499 show_agp(d, where, cap);
502 printf("Vital Product Data\n");
504 case PCI_CAP_ID_SLOTID:
508 show_msi(d, where, cap);
511 printf("#%02x [%04x]\n", id, cap);
519 show_htype0(struct device *d)
527 show_htype1(struct device *d)
529 u32 io_base = get_conf_byte(d, PCI_IO_BASE);
530 u32 io_limit = get_conf_byte(d, PCI_IO_LIMIT);
531 u32 io_type = io_base & PCI_IO_RANGE_TYPE_MASK;
532 u32 mem_base = get_conf_word(d, PCI_MEMORY_BASE);
533 u32 mem_limit = get_conf_word(d, PCI_MEMORY_LIMIT);
534 u32 mem_type = mem_base & PCI_MEMORY_RANGE_TYPE_MASK;
535 u32 pref_base = get_conf_word(d, PCI_PREF_MEMORY_BASE);
536 u32 pref_limit = get_conf_word(d, PCI_PREF_MEMORY_LIMIT);
537 u32 pref_type = pref_base & PCI_PREF_RANGE_TYPE_MASK;
538 word brc = get_conf_word(d, PCI_BRIDGE_CONTROL);
541 printf("\tBus: primary=%02x, secondary=%02x, subordinate=%02x, sec-latency=%d\n",
542 get_conf_byte(d, PCI_PRIMARY_BUS),
543 get_conf_byte(d, PCI_SECONDARY_BUS),
544 get_conf_byte(d, PCI_SUBORDINATE_BUS),
545 get_conf_byte(d, PCI_SEC_LATENCY_TIMER));
547 if (io_type != (io_limit & PCI_IO_RANGE_TYPE_MASK) ||
548 (io_type != PCI_IO_RANGE_TYPE_16 && io_type != PCI_IO_RANGE_TYPE_32))
549 printf("\t!!! Unknown I/O range types %x/%x\n", io_base, io_limit);
552 io_base = (io_base & PCI_IO_RANGE_MASK) << 8;
553 io_limit = (io_limit & PCI_IO_RANGE_MASK) << 8;
554 if (io_type == PCI_IO_RANGE_TYPE_32)
556 io_base |= (get_conf_word(d, PCI_IO_BASE_UPPER16) << 16);
557 io_limit |= (get_conf_word(d, PCI_IO_LIMIT_UPPER16) << 16);
560 printf("\tI/O behind bridge: %08x-%08x\n", io_base, io_limit+0xfff);
563 if (mem_type != (mem_limit & PCI_MEMORY_RANGE_TYPE_MASK) ||
565 printf("\t!!! Unknown memory range types %x/%x\n", mem_base, mem_limit);
568 mem_base = (mem_base & PCI_MEMORY_RANGE_MASK) << 16;
569 mem_limit = (mem_limit & PCI_MEMORY_RANGE_MASK) << 16;
570 printf("\tMemory behind bridge: %08x-%08x\n", mem_base, mem_limit + 0xfffff);
573 if (pref_type != (pref_limit & PCI_PREF_RANGE_TYPE_MASK) ||
574 (pref_type != PCI_PREF_RANGE_TYPE_32 && pref_type != PCI_PREF_RANGE_TYPE_64))
575 printf("\t!!! Unknown prefetchable memory range types %x/%x\n", pref_base, pref_limit);
578 pref_base = (pref_base & PCI_PREF_RANGE_MASK) << 16;
579 pref_limit = (pref_limit & PCI_PREF_RANGE_MASK) << 16;
580 if (pref_type == PCI_PREF_RANGE_TYPE_32)
581 printf("\tPrefetchable memory behind bridge: %08x-%08x\n", pref_base, pref_limit + 0xfffff);
583 printf("\tPrefetchable memory behind bridge: %08x%08x-%08x%08x\n",
584 get_conf_long(d, PCI_PREF_BASE_UPPER32),
586 get_conf_long(d, PCI_PREF_LIMIT_UPPER32),
590 if (get_conf_word(d, PCI_SEC_STATUS) & PCI_STATUS_SIG_SYSTEM_ERROR)
591 printf("\tSecondary status: SERR\n");
596 printf("\tBridgeCtl: Parity%c SERR%c NoISA%c VGA%c MAbort%c >Reset%c FastB2B%c\n",
597 FLAG(brc, PCI_BRIDGE_CTL_PARITY),
598 FLAG(brc, PCI_BRIDGE_CTL_SERR),
599 FLAG(brc, PCI_BRIDGE_CTL_NO_ISA),
600 FLAG(brc, PCI_BRIDGE_CTL_VGA),
601 FLAG(brc, PCI_BRIDGE_CTL_MASTER_ABORT),
602 FLAG(brc, PCI_BRIDGE_CTL_BUS_RESET),
603 FLAG(brc, PCI_BRIDGE_CTL_FAST_BACK));
609 show_htype2(struct device *d)
612 word cmd = get_conf_word(d, PCI_COMMAND);
613 word brc = get_conf_word(d, PCI_CB_BRIDGE_CONTROL);
614 word exca = get_conf_word(d, PCI_CB_LEGACY_MODE_BASE);
617 printf("\tBus: primary=%02x, secondary=%02x, subordinate=%02x, sec-latency=%d\n",
618 get_conf_byte(d, PCI_CB_PRIMARY_BUS),
619 get_conf_byte(d, PCI_CB_CARD_BUS),
620 get_conf_byte(d, PCI_CB_SUBORDINATE_BUS),
621 get_conf_byte(d, PCI_CB_LATENCY_TIMER));
625 u32 base = get_conf_long(d, PCI_CB_MEMORY_BASE_0 + p);
626 u32 limit = get_conf_long(d, PCI_CB_MEMORY_LIMIT_0 + p);
628 printf("Memory window %d: %08x-%08x%s%s\n", i, base, limit,
629 (cmd & PCI_COMMAND_MEMORY) ? "" : " [disabled]",
630 (brc & (PCI_CB_BRIDGE_CTL_PREFETCH_MEM0 << i)) ? " (prefetchable)" : "");
635 u32 base = get_conf_long(d, PCI_CB_IO_BASE_0 + p);
636 u32 limit = get_conf_long(d, PCI_CB_IO_LIMIT_0 + p);
637 if (!(base & PCI_IO_RANGE_TYPE_32))
642 base &= PCI_CB_IO_RANGE_MASK;
645 limit = (limit & PCI_CB_IO_RANGE_MASK) + 3;
646 printf("I/O window %d: %08x-%08x%s\n", i, base, limit,
647 (cmd & PCI_COMMAND_IO) ? "" : " [disabled]");
650 if (get_conf_word(d, PCI_CB_SEC_STATUS) & PCI_STATUS_SIG_SYSTEM_ERROR)
651 printf("\tSecondary status: SERR\n");
653 printf("\tBridgeCtl: Parity%c SERR%c ISA%c VGA%c MAbort%c >Reset%c 16bInt%c PostWrite%c\n",
654 FLAG(brc, PCI_CB_BRIDGE_CTL_PARITY),
655 FLAG(brc, PCI_CB_BRIDGE_CTL_SERR),
656 FLAG(brc, PCI_CB_BRIDGE_CTL_ISA),
657 FLAG(brc, PCI_CB_BRIDGE_CTL_VGA),
658 FLAG(brc, PCI_CB_BRIDGE_CTL_MASTER_ABORT),
659 FLAG(brc, PCI_CB_BRIDGE_CTL_CB_RESET),
660 FLAG(brc, PCI_CB_BRIDGE_CTL_16BIT_INT),
661 FLAG(brc, PCI_CB_BRIDGE_CTL_POST_WRITES));
663 printf("\t16-bit legacy interface ports at %04x\n", exca);
667 show_verbose(struct device *d)
669 struct pci_dev *p = d->dev;
670 word status = get_conf_word(d, PCI_STATUS);
671 word cmd = get_conf_word(d, PCI_COMMAND);
672 word class = get_conf_word(d, PCI_CLASS_DEVICE);
673 byte bist = get_conf_byte(d, PCI_BIST);
674 byte htype = get_conf_byte(d, PCI_HEADER_TYPE) & 0x7f;
675 byte latency = get_conf_byte(d, PCI_LATENCY_TIMER);
676 byte cache_line = get_conf_byte(d, PCI_CACHE_LINE_SIZE);
677 byte max_lat, min_gnt;
678 byte int_pin = get_conf_byte(d, PCI_INTERRUPT_PIN);
679 unsigned int irq = p->irq;
680 word subsys_v, subsys_d;
687 case PCI_HEADER_TYPE_NORMAL:
688 if (class == PCI_CLASS_BRIDGE_PCI)
691 printf("\t!!! Header type %02x doesn't match class code %04x\n", htype, class);
694 max_lat = get_conf_byte(d, PCI_MAX_LAT);
695 min_gnt = get_conf_byte(d, PCI_MIN_GNT);
696 subsys_v = get_conf_word(d, PCI_SUBSYSTEM_VENDOR_ID);
697 subsys_d = get_conf_word(d, PCI_SUBSYSTEM_ID);
699 case PCI_HEADER_TYPE_BRIDGE:
700 if (class != PCI_CLASS_BRIDGE_PCI)
702 irq = int_pin = min_gnt = max_lat = 0;
703 subsys_v = subsys_d = 0;
705 case PCI_HEADER_TYPE_CARDBUS:
706 if ((class >> 8) != PCI_BASE_CLASS_BRIDGE)
708 min_gnt = max_lat = 0;
709 subsys_v = get_conf_word(d, PCI_CB_SUBSYSTEM_VENDOR_ID);
710 subsys_d = get_conf_word(d, PCI_CB_SUBSYSTEM_ID);
713 printf("\t!!! Unknown header type %02x\n", htype);
717 if (verbose && subsys_v && subsys_v != 0xffff)
718 printf("\tSubsystem: %s\n",
719 pci_lookup_name(pacc, ssnamebuf, sizeof(ssnamebuf),
720 PCI_LOOKUP_SUBSYSTEM | PCI_LOOKUP_VENDOR | PCI_LOOKUP_DEVICE,
721 subsys_v, subsys_d));
725 printf("\tControl: I/O%c Mem%c BusMaster%c SpecCycle%c MemWINV%c VGASnoop%c ParErr%c Stepping%c SERR%c FastB2B%c\n",
726 FLAG(cmd, PCI_COMMAND_IO),
727 FLAG(cmd, PCI_COMMAND_MEMORY),
728 FLAG(cmd, PCI_COMMAND_MASTER),
729 FLAG(cmd, PCI_COMMAND_SPECIAL),
730 FLAG(cmd, PCI_COMMAND_INVALIDATE),
731 FLAG(cmd, PCI_COMMAND_VGA_PALETTE),
732 FLAG(cmd, PCI_COMMAND_PARITY),
733 FLAG(cmd, PCI_COMMAND_WAIT),
734 FLAG(cmd, PCI_COMMAND_SERR),
735 FLAG(cmd, PCI_COMMAND_FAST_BACK));
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\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 if (cmd & PCI_COMMAND_MASTER)
752 printf("\tLatency: ");
754 printf("%d min, ", min_gnt);
756 printf("%d max, ", max_lat);
757 printf("%d set", latency);
759 printf(", cache line size %02x", cache_line);
763 printf("\tInterrupt: pin %c routed to IRQ " IRQ_FORMAT "\n",
764 (int_pin ? 'A' + int_pin - 1 : '?'), irq);
769 if (cmd & PCI_COMMAND_MASTER)
770 printf("bus master, ");
771 if (cmd & PCI_COMMAND_VGA_PALETTE)
772 printf("VGA palette snoop, ");
773 if (cmd & PCI_COMMAND_WAIT)
774 printf("stepping, ");
775 if (cmd & PCI_COMMAND_FAST_BACK)
776 printf("fast Back2Back, ");
777 if (status & PCI_STATUS_66MHZ)
779 if (status & PCI_STATUS_UDF)
780 printf("user-definable features, ");
782 ((status & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_SLOW) ? "slow" :
783 ((status & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_MEDIUM) ? "medium" :
784 ((status & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_FAST) ? "fast" : "??");
785 if (cmd & PCI_COMMAND_MASTER)
786 printf(", latency %d", latency);
788 printf(", IRQ " IRQ_FORMAT, irq);
792 if (bist & PCI_BIST_CAPABLE)
794 if (bist & PCI_BIST_START)
795 printf("\tBIST is running\n");
797 printf("\tBIST result: %02x\n", bist & PCI_BIST_CODE_MASK);
802 case PCI_HEADER_TYPE_NORMAL:
805 case PCI_HEADER_TYPE_BRIDGE:
808 case PCI_HEADER_TYPE_CARDBUS:
815 show_hex_dump(struct device *d)
819 for(i=0; i<d->config_cnt; i++)
823 printf(" %02x", get_conf_byte(d, i));
830 show_machine(struct device *d)
832 struct pci_dev *p = d->dev;
834 word sv_id=0, sd_id=0;
835 char classbuf[128], vendbuf[128], devbuf[128], svbuf[128], sdbuf[128];
837 switch (get_conf_byte(d, PCI_HEADER_TYPE) & 0x7f)
839 case PCI_HEADER_TYPE_NORMAL:
840 sv_id = get_conf_word(d, PCI_SUBSYSTEM_VENDOR_ID);
841 sd_id = get_conf_word(d, PCI_SUBSYSTEM_ID);
843 case PCI_HEADER_TYPE_CARDBUS:
844 sv_id = get_conf_word(d, PCI_CB_SUBSYSTEM_VENDOR_ID);
845 sd_id = get_conf_word(d, PCI_CB_SUBSYSTEM_ID);
851 printf("Device:\t%02x:%02x.%x\n", p->bus, p->dev, p->func);
852 printf("Class:\t%s\n",
853 pci_lookup_name(pacc, classbuf, sizeof(classbuf), PCI_LOOKUP_CLASS, get_conf_word(d, PCI_CLASS_DEVICE), 0));
854 printf("Vendor:\t%s\n",
855 pci_lookup_name(pacc, vendbuf, sizeof(vendbuf), PCI_LOOKUP_VENDOR, p->vendor_id, p->device_id));
856 printf("Device:\t%s\n",
857 pci_lookup_name(pacc, devbuf, sizeof(devbuf), PCI_LOOKUP_DEVICE, p->vendor_id, p->device_id));
858 if (sv_id && sv_id != 0xffff)
860 printf("SVendor:\t%s\n",
861 pci_lookup_name(pacc, svbuf, sizeof(svbuf), PCI_LOOKUP_SUBSYSTEM | PCI_LOOKUP_VENDOR, sv_id, sd_id));
862 printf("SDevice:\t%s\n",
863 pci_lookup_name(pacc, sdbuf, sizeof(sdbuf), PCI_LOOKUP_SUBSYSTEM | PCI_LOOKUP_DEVICE, sv_id, sd_id));
865 if (c = get_conf_byte(d, PCI_REVISION_ID))
866 printf("Rev:\t%02x\n", c);
867 if (c = get_conf_byte(d, PCI_CLASS_PROG))
868 printf("ProgIf:\t%02x\n", c);
872 printf("%02x:%02x.%x ", p->bus, p->dev, p->func);
873 printf("\"%s\" \"%s\" \"%s\"",
874 pci_lookup_name(pacc, classbuf, sizeof(classbuf), PCI_LOOKUP_CLASS,
875 get_conf_word(d, PCI_CLASS_DEVICE), 0),
876 pci_lookup_name(pacc, vendbuf, sizeof(vendbuf), PCI_LOOKUP_VENDOR,
877 p->vendor_id, p->device_id),
878 pci_lookup_name(pacc, devbuf, sizeof(devbuf), PCI_LOOKUP_DEVICE,
879 p->vendor_id, p->device_id));
880 if (c = get_conf_byte(d, PCI_REVISION_ID))
881 printf(" -r%02x", c);
882 if (c = get_conf_byte(d, PCI_CLASS_PROG))
883 printf(" -p%02x", c);
884 if (sv_id && sv_id != 0xffff)
885 printf(" \"%s\" \"%s\"",
886 pci_lookup_name(pacc, svbuf, sizeof(svbuf), PCI_LOOKUP_SUBSYSTEM | PCI_LOOKUP_VENDOR, sv_id, sd_id),
887 pci_lookup_name(pacc, sdbuf, sizeof(sdbuf), PCI_LOOKUP_SUBSYSTEM | PCI_LOOKUP_DEVICE, sv_id, sd_id));
889 printf(" \"\" \"\"");
895 show_device(struct device *d)
897 if (machine_readable)
905 if (verbose || show_hex)
914 for(d=first_dev; d; d=d->next)
921 struct bridge *chain; /* Single-linked list of bridges */
922 struct bridge *next, *child; /* Tree of bridges */
923 struct bus *first_bus; /* List of busses connected to this bridge */
924 unsigned int primary, secondary, subordinate; /* Bus numbers */
925 struct device *br_dev;
931 struct device *first_dev, **last_dev;
934 static struct bridge host_bridge = { NULL, NULL, NULL, NULL, ~0, 0, ~0, NULL };
937 find_bus(struct bridge *b, unsigned int n)
941 for(bus=b->first_bus; bus; bus=bus->sibling)
942 if (bus->number == n)
948 new_bus(struct bridge *b, unsigned int n)
950 struct bus *bus = xmalloc(sizeof(struct bus));
952 bus = xmalloc(sizeof(struct bus));
954 bus->sibling = b->first_bus;
955 bus->first_dev = NULL;
956 bus->last_dev = &bus->first_dev;
962 insert_dev(struct device *d, struct bridge *b)
964 struct pci_dev *p = d->dev;
967 if (! (bus = find_bus(b, p->bus)))
970 for(c=b->child; c; c=c->next)
971 if (c->secondary <= p->bus && p->bus <= c->subordinate)
972 return insert_dev(d, c);
973 bus = new_bus(b, p->bus);
975 /* Simple insertion at the end _does_ guarantee the correct order as the
976 * original device list was sorted by (bus, devfn) lexicographically
977 * and all devices on the new list have the same bus number.
980 bus->last_dev = &d->next;
987 struct device *d, *d2;
988 struct bridge **last_br, *b;
990 /* Build list of bridges */
992 last_br = &host_bridge.chain;
993 for(d=first_dev; d; d=d->next)
995 word class = get_conf_word(d, PCI_CLASS_DEVICE);
996 byte ht = get_conf_byte(d, PCI_HEADER_TYPE) & 0x7f;
997 if (class == PCI_CLASS_BRIDGE_PCI &&
998 (ht == PCI_HEADER_TYPE_BRIDGE || ht == PCI_HEADER_TYPE_CARDBUS))
1000 b = xmalloc(sizeof(struct bridge));
1001 if (ht == PCI_HEADER_TYPE_BRIDGE)
1003 b->primary = get_conf_byte(d, PCI_CB_PRIMARY_BUS);
1004 b->secondary = get_conf_byte(d, PCI_CB_CARD_BUS);
1005 b->subordinate = get_conf_byte(d, PCI_CB_SUBORDINATE_BUS);
1009 b->primary = get_conf_byte(d, PCI_PRIMARY_BUS);
1010 b->secondary = get_conf_byte(d, PCI_SECONDARY_BUS);
1011 b->subordinate = get_conf_byte(d, PCI_SUBORDINATE_BUS);
1014 last_br = &b->chain;
1015 b->next = b->child = NULL;
1016 b->first_bus = NULL;
1022 /* Create a bridge tree */
1024 for(b=&host_bridge; b; b=b->chain)
1026 struct bridge *c, *best;
1028 for(c=&host_bridge; c; c=c->chain)
1029 if (c != b && b->primary >= c->secondary && b->primary <= c->subordinate &&
1030 (!best || best->subordinate - best->primary > c->subordinate - c->primary))
1034 b->next = best->child;
1039 /* Insert secondary bus for each bridge */
1041 for(b=&host_bridge; b; b=b->chain)
1042 if (!find_bus(b, b->secondary))
1043 new_bus(b, b->secondary);
1045 /* Create bus structs and link devices */
1047 for(d=first_dev; d;)
1050 insert_dev(d, &host_bridge);
1056 print_it(byte *line, byte *p)
1060 fputs(line, stdout);
1061 for(p=line; *p; p++)
1062 if (*p == '+' || *p == '|')
1068 static void show_tree_bridge(struct bridge *, byte *, byte *);
1071 show_tree_dev(struct device *d, byte *line, byte *p)
1073 struct pci_dev *q = d->dev;
1077 p += sprintf(p, "%02x.%x", q->dev, q->func);
1078 for(b=&host_bridge; b; b=b->chain)
1081 if (b->secondary == b->subordinate)
1082 p += sprintf(p, "-[%02x]-", b->secondary);
1084 p += sprintf(p, "-[%02x-%02x]-", b->secondary, b->subordinate);
1085 show_tree_bridge(b, line, p);
1089 p += sprintf(p, " %s",
1090 pci_lookup_name(pacc, namebuf, sizeof(namebuf),
1091 PCI_LOOKUP_VENDOR | PCI_LOOKUP_DEVICE,
1092 q->vendor_id, q->device_id));
1097 show_tree_bus(struct bus *b, byte *line, byte *p)
1101 else if (!b->first_dev->next)
1105 show_tree_dev(b->first_dev, line, p);
1109 struct device *d = b->first_dev;
1114 show_tree_dev(d, line, p+2);
1119 show_tree_dev(d, line, p+2);
1124 show_tree_bridge(struct bridge *b, byte *line, byte *p)
1127 if (!b->first_bus->sibling)
1129 if (b == &host_bridge)
1130 p += sprintf(p, "[%02x]-", b->first_bus->number);
1131 show_tree_bus(b->first_bus, line, p);
1135 struct bus *u = b->first_bus;
1140 k = p + sprintf(p, "+-[%02x]-", u->number);
1141 show_tree_bus(u, line, k);
1144 k = p + sprintf(p, "\\-[%02x]-", u->number);
1145 show_tree_bus(u, line, k);
1155 show_tree_bridge(&host_bridge, line, line);
1158 /* Bus mapping mode */
1161 struct bus_bridge *next;
1162 byte this, dev, func, first, last, bug;
1168 struct bus_bridge *bridges, *via;
1171 static struct bus_info *bus_info;
1174 map_bridge(struct bus_info *bi, struct device *d, int np, int ns, int nl)
1176 struct bus_bridge *b = xmalloc(sizeof(struct bus_bridge));
1177 struct pci_dev *p = d->dev;
1179 b->next = bi->bridges;
1181 b->this = get_conf_byte(d, np);
1184 b->first = get_conf_byte(d, ns);
1185 b->last = get_conf_byte(d, nl);
1186 printf("## %02x.%02x:%d is a bridge from %02x to %02x-%02x\n",
1187 p->bus, p->dev, p->func, b->this, b->first, b->last);
1188 if (b->this != p->bus)
1189 printf("!!! Bridge points to invalid primary bus.\n");
1190 if (b->first > b->last)
1192 printf("!!! Bridge points to invalid bus range.\n");
1201 int verbose = pacc->debugging;
1202 struct bus_info *bi = bus_info + bus;
1206 printf("Mapping bus %02x\n", bus);
1207 for(dev = 0; dev < 32; dev++)
1208 if (filter.slot < 0 || filter.slot == dev)
1211 for(func = 0; func < func_limit; func++)
1212 if (filter.func < 0 || filter.func == func)
1214 struct pci_dev *p = pci_get_dev(pacc, bus, dev, func);
1215 u16 vendor = pci_read_word(p, PCI_VENDOR_ID);
1216 if (vendor && vendor != 0xffff)
1218 if (!func && (pci_read_byte(p, PCI_HEADER_TYPE) & 0x80))
1221 printf("Discovered device %02x:%02x.%d\n", bus, dev, func);
1223 if (d = scan_device(p))
1226 switch (get_conf_byte(d, PCI_HEADER_TYPE) & 0x7f)
1228 case PCI_HEADER_TYPE_BRIDGE:
1229 map_bridge(bi, d, PCI_PRIMARY_BUS, PCI_SECONDARY_BUS, PCI_SUBORDINATE_BUS);
1231 case PCI_HEADER_TYPE_CARDBUS:
1232 map_bridge(bi, d, PCI_CB_PRIMARY_BUS, PCI_CB_CARD_BUS, PCI_CB_SUBORDINATE_BUS);
1238 printf("But it was filtered out.\n");
1246 do_map_bridges(int bus, int min, int max)
1248 struct bus_info *bi = bus_info + bus;
1249 struct bus_bridge *b;
1252 for(b=bi->bridges; b; b=b->next)
1254 if (bus_info[b->first].guestbook)
1256 else if (b->first < min || b->last > max)
1260 bus_info[b->first].via = b;
1261 do_map_bridges(b->first, b->first, b->last);
1271 printf("\nSummary of buses:\n\n");
1272 for(i=0; i<256; i++)
1273 if (bus_info[i].exists && !bus_info[i].guestbook)
1274 do_map_bridges(i, 0, 255);
1275 for(i=0; i<256; i++)
1277 struct bus_info *bi = bus_info + i;
1278 struct bus_bridge *b = bi->via;
1282 printf("%02x: ", i);
1284 printf("Entered via %02x:%02x.%d\n", b->this, b->dev, b->func);
1286 printf("Primary host bus\n");
1288 printf("Secondary host bus (?)\n");
1290 for(b=bi->bridges; b; b=b->next)
1292 printf("\t%02x.%d Bridge to %02x-%02x", b->dev, b->func, b->first, b->last);
1296 printf(" <overlap bug>");
1299 printf(" <crossing bug>");
1310 if (pacc->method == PCI_ACCESS_PROC_BUS_PCI ||
1311 pacc->method == PCI_ACCESS_DUMP)
1312 printf("WARNING: Bus mapping can be reliable only with direct hardware access enabled.\n\n");
1313 else if (!check_root())
1314 die("Only root can map the bus.");
1315 bus_info = xmalloc(sizeof(struct bus_info) * 256);
1316 bzero(bus_info, sizeof(struct bus_info) * 256);
1317 if (filter.bus >= 0)
1318 do_map_bus(filter.bus);
1322 for(bus=0; bus<256; bus++)
1331 main(int argc, char **argv)
1336 if (argc == 2 && !strcmp(argv[1], "--version"))
1338 puts("lspci version " PCIUTILS_VERSION);
1344 pci_filter_init(pacc, &filter);
1346 while ((i = getopt(argc, argv, options)) != -1)
1350 pacc->numeric_ids = 1;
1356 pacc->buscentric = 1;
1357 buscentric_view = 1;
1360 if (msg = pci_filter_parse_slot(&filter, optarg))
1364 if (msg = pci_filter_parse_id(&filter, optarg))
1374 pacc->id_file_name = optarg;
1383 if (parse_generic_option(i, pacc, optarg))
1386 fprintf(stderr, help_msg, pacc->id_file_name);