2 * $Id: lspci.c,v 1.36 2000/04/21 11:58:00 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_LONG_ADDRESS)
72 #define IO_FORMAT "%04Lx"
74 #define IO_FORMAT "%04lx"
78 * If we aren't being compiled by GCC, use malloc() instead of alloca().
79 * This increases our memory footprint, but only slightly since we don't
87 /* Our view of the PCI bus */
92 unsigned int config_cnt;
96 static struct device *first_dev;
98 static struct device *
99 scan_device(struct pci_dev *p)
101 int how_much = (show_hex > 2) ? 256 : 64;
104 if (!pci_filter_match(&filter, p))
106 d = xmalloc(sizeof(struct device));
107 bzero(d, sizeof(*d));
109 if (!pci_read_block(p, 0, d->config, how_much))
110 die("Unable to read %d bytes of configuration space.", how_much);
111 if (how_much < 128 && (d->config[PCI_HEADER_TYPE] & 0x7f) == PCI_HEADER_TYPE_CARDBUS)
113 /* For cardbus bridges, we need to fetch 64 bytes more to get the full standard header... */
114 if (!pci_read_block(p, 64, d->config+64, 64))
115 die("Unable to read cardbus bridge extension data.");
118 d->config_cnt = how_much;
119 pci_setup_cache(p, d->config, d->config_cnt);
120 pci_fill_info(p, PCI_FILL_IDENT | PCI_FILL_IRQ | PCI_FILL_BASES | PCI_FILL_ROM_BASE | PCI_FILL_SIZES);
131 for(p=pacc->devices; p; p=p->next)
132 if (d = scan_device(p))
142 static int is_root = -1;
145 is_root = !geteuid();
150 config_fetch(struct device *d, unsigned int pos, unsigned int len)
152 if (pos + len < d->config_cnt)
154 if (pacc->method != PCI_ACCESS_DUMP && !check_root())
156 return pci_read_block(d->dev, pos, d->config + pos, len);
159 /* Config space accesses */
162 get_conf_byte(struct device *d, unsigned int pos)
164 return d->config[pos];
168 get_conf_word(struct device *d, unsigned int pos)
170 return d->config[pos] | (d->config[pos+1] << 8);
174 get_conf_long(struct device *d, unsigned int pos)
176 return d->config[pos] |
177 (d->config[pos+1] << 8) |
178 (d->config[pos+2] << 16) |
179 (d->config[pos+3] << 24);
185 compare_them(const void *A, const void *B)
187 const struct pci_dev *a = (*(const struct device **)A)->dev;
188 const struct pci_dev *b = (*(const struct device **)B)->dev;
198 if (a->func < b->func)
200 if (a->func > b->func)
208 struct device **index, **h, **last_dev;
213 for(d=first_dev; d; d=d->next)
215 h = index = alloca(sizeof(struct device *) * cnt);
216 for(d=first_dev; d; d=d->next)
218 qsort(index, cnt, sizeof(struct device *), compare_them);
219 last_dev = &first_dev;
224 last_dev = &(*h)->next;
232 #define FLAG(x,y) ((x & y) ? '+' : '-')
235 show_terse(struct device *d)
238 struct pci_dev *p = d->dev;
239 byte classbuf[128], devbuf[128];
241 printf("%02x:%02x.%x %s: %s",
245 pci_lookup_name(pacc, classbuf, sizeof(classbuf),
247 get_conf_word(d, PCI_CLASS_DEVICE), 0, 0, 0),
248 pci_lookup_name(pacc, devbuf, sizeof(devbuf),
249 PCI_LOOKUP_VENDOR | PCI_LOOKUP_DEVICE,
250 p->vendor_id, p->device_id, 0, 0));
251 if (c = get_conf_byte(d, PCI_REVISION_ID))
252 printf(" (rev %02x)", c);
256 c = get_conf_byte(d, PCI_CLASS_PROG);
257 x = pci_lookup_name(pacc, devbuf, sizeof(devbuf),
259 get_conf_word(d, PCI_CLASS_DEVICE), c, 0, 0);
262 printf(" (prog-if %02x", c);
272 show_size(pciaddr_t x)
278 printf("%d", (int) x);
279 else if (x < 1048576)
280 printf("%dK", (int)(x / 1024));
281 else if (x < 0x80000000)
282 printf("%dM", (int)(x / 1048576));
284 printf(ADDR_FORMAT, x);
289 show_bases(struct device *d, int cnt)
291 struct pci_dev *p = d->dev;
292 word cmd = get_conf_word(d, PCI_COMMAND);
297 pciaddr_t pos = p->base_addr[i];
298 pciaddr_t len = (p->known_fields & PCI_FILL_SIZES) ? p->size[i] : 0;
299 u32 flg = get_conf_long(d, PCI_BASE_ADDRESS_0 + 4*i);
300 if (flg == 0xffffffff)
302 if (!pos && !flg && !len)
305 printf("\tRegion %d: ", i);
308 if (pos && !flg) /* Reported by the OS, but not by the device */
310 printf("[virtual] ");
313 if (flg & PCI_BASE_ADDRESS_SPACE_IO)
315 pciaddr_t a = pos & PCI_BASE_ADDRESS_IO_MASK;
316 printf("I/O ports at ");
318 printf(IO_FORMAT, a);
319 else if (flg & PCI_BASE_ADDRESS_IO_MASK)
322 printf("<unassigned>");
323 if (!(cmd & PCI_COMMAND_IO))
324 printf(" [disabled]");
328 int t = flg & PCI_BASE_ADDRESS_MEM_TYPE_MASK;
329 pciaddr_t a = pos & PCI_ADDR_MEM_MASK;
333 printf("Memory at ");
334 if (t == PCI_BASE_ADDRESS_MEM_TYPE_64)
338 printf("<invalid-64bit-slot>");
344 z = get_conf_long(d, PCI_BASE_ADDRESS_0 + 4*i);
348 printf("%08x" ADDR_FORMAT, z, a);
350 printf("<unassigned>");
358 printf(ADDR_FORMAT, a);
360 printf(((flg & PCI_BASE_ADDRESS_MEM_MASK) || z) ? "<ignored>" : "<unassigned>");
362 printf(" (%s, %sprefetchable)",
363 (t == PCI_BASE_ADDRESS_MEM_TYPE_32) ? "32-bit" :
364 (t == PCI_BASE_ADDRESS_MEM_TYPE_64) ? "64-bit" :
365 (t == PCI_BASE_ADDRESS_MEM_TYPE_1M) ? "low-1M" : "type 3",
366 (flg & PCI_BASE_ADDRESS_MEM_PREFETCH) ? "" : "non-");
367 if (!(cmd & PCI_COMMAND_MEMORY))
368 printf(" [disabled]");
376 show_pm(struct device *d, int where, int cap)
380 printf("Power Management version %d\n", cap & PCI_PM_CAP_VER_MASK);
383 printf("\t\tFlags: PMEClk%c AuxPwr%c DSI%c D1%c D2%c PME%c\n",
384 FLAG(cap, PCI_PM_CAP_PME_CLOCK),
385 FLAG(cap, PCI_PM_CAP_AUX_POWER),
386 FLAG(cap, PCI_PM_CAP_DSI),
387 FLAG(cap, PCI_PM_CAP_D1),
388 FLAG(cap, PCI_PM_CAP_D2),
389 FLAG(cap, PCI_PM_CAP_PME));
390 config_fetch(d, where + PCI_PM_CTRL, PCI_PM_SIZEOF - PCI_PM_CTRL);
391 t = get_conf_word(d, where + PCI_PM_CTRL);
392 printf("\t\tStatus: D%d PME-Enable%c DSel=%x DScale=%x PME%c\n",
393 t & PCI_PM_CTRL_STATE_MASK,
394 FLAG(t, PCI_PM_CTRL_PME_ENABLE),
395 (t & PCI_PM_CTRL_DATA_SEL_MASK) >> 9,
396 (t & PCI_PM_CTRL_DATA_SCALE_MASK) >> 13,
397 FLAG(t, PCI_PM_CTRL_PME_STATUS));
401 format_agp_rate(int rate, char *buf)
412 *c++ = '0' + (1 << i);
417 strcpy(buf, "<none>");
421 show_agp(struct device *d, int where, int cap)
427 printf("AGP version %x.%x\n", cap/16, cap%16);
430 config_fetch(d, where + PCI_AGP_STATUS, PCI_AGP_SIZEOF - PCI_AGP_STATUS);
431 t = get_conf_long(d, where + PCI_AGP_STATUS);
432 format_agp_rate(t & 7, rate);
433 printf("\t\tStatus: RQ=%d SBA%c 64bit%c FW%c Rate=%s\n",
434 (t & PCI_AGP_STATUS_RQ_MASK) >> 24U,
435 FLAG(t, PCI_AGP_STATUS_SBA),
436 FLAG(t, PCI_AGP_STATUS_64BIT),
437 FLAG(t, PCI_AGP_STATUS_FW),
439 t = get_conf_long(d, where + PCI_AGP_COMMAND);
440 format_agp_rate(t & 7, rate);
441 printf("\t\tCommand: RQ=%d SBA%c AGP%c 64bit%c FW%c Rate=%s\n",
442 (t & PCI_AGP_COMMAND_RQ_MASK) >> 24U,
443 FLAG(t, PCI_AGP_COMMAND_SBA),
444 FLAG(t, PCI_AGP_COMMAND_AGP),
445 FLAG(t, PCI_AGP_COMMAND_64BIT),
446 FLAG(t, PCI_AGP_COMMAND_FW),
451 show_rom(struct device *d)
453 struct pci_dev *p = d->dev;
454 pciaddr_t rom = p->rom_base_addr;
455 pciaddr_t len = (p->known_fields & PCI_FILL_SIZES) ? p->rom_size : 0;
459 printf("\tExpansion ROM at ");
460 if (rom & PCI_ROM_ADDRESS_MASK)
461 printf(ADDR_FORMAT, rom & PCI_ROM_ADDRESS_MASK);
463 printf("<unassigned>");
464 if (!(rom & PCI_ROM_ADDRESS_ENABLE))
465 printf(" [disabled]");
471 show_msi(struct device *d, int where, int cap)
477 printf("Message Signalled Interrupts: 64bit%c Queue=%d/%d Enable%c\n",
478 FLAG(cap, PCI_MSI_FLAGS_64BIT),
479 (cap & PCI_MSI_FLAGS_QSIZE) >> 4,
480 (cap & PCI_MSI_FLAGS_QMASK) >> 1,
481 FLAG(cap, PCI_MSI_FLAGS_ENABLE));
484 is64 = cap & PCI_MSI_FLAGS_64BIT;
485 config_fetch(d, where + PCI_MSI_ADDRESS_LO, (is64 ? PCI_MSI_DATA_64 : PCI_MSI_DATA_32) + 2 - PCI_MSI_ADDRESS_LO);
486 printf("\t\tAddress: ");
489 t = get_conf_long(d, where + PCI_MSI_ADDRESS_HI);
490 w = get_conf_word(d, where + PCI_MSI_DATA_64);
494 w = get_conf_word(d, where + PCI_MSI_DATA_32);
495 t = get_conf_long(d, where + PCI_MSI_ADDRESS_LO);
496 printf("%08x Data: %04x\n", t, w);
502 int esr = cap & 0xff;
505 printf("Slot ID: %d slots, First%c, chassis %02x\n",
506 esr & PCI_SID_ESR_NSLOTS,
507 FLAG(esr, PCI_SID_ESR_FIC),
512 show_caps(struct device *d)
514 if (get_conf_word(d, PCI_STATUS) & PCI_STATUS_CAP_LIST)
516 int where = get_conf_byte(d, PCI_CAPABILITY_LIST) & ~3;
520 printf("\tCapabilities: ");
521 if (!config_fetch(d, where, 4))
523 puts("<available only to root>");
526 id = get_conf_byte(d, where + PCI_CAP_LIST_ID);
527 next = get_conf_byte(d, where + PCI_CAP_LIST_NEXT) & ~3;
528 cap = get_conf_word(d, where + PCI_CAP_FLAGS);
529 printf("[%02x] ", where);
532 printf("<chain broken>\n");
538 show_pm(d, where, cap);
541 show_agp(d, where, cap);
544 printf("Vital Product Data\n");
546 case PCI_CAP_ID_SLOTID:
550 show_msi(d, where, cap);
553 printf("#%02x [%04x]\n", id, cap);
561 show_htype0(struct device *d)
569 show_htype1(struct device *d)
571 u32 io_base = get_conf_byte(d, PCI_IO_BASE);
572 u32 io_limit = get_conf_byte(d, PCI_IO_LIMIT);
573 u32 io_type = io_base & PCI_IO_RANGE_TYPE_MASK;
574 u32 mem_base = get_conf_word(d, PCI_MEMORY_BASE);
575 u32 mem_limit = get_conf_word(d, PCI_MEMORY_LIMIT);
576 u32 mem_type = mem_base & PCI_MEMORY_RANGE_TYPE_MASK;
577 u32 pref_base = get_conf_word(d, PCI_PREF_MEMORY_BASE);
578 u32 pref_limit = get_conf_word(d, PCI_PREF_MEMORY_LIMIT);
579 u32 pref_type = pref_base & PCI_PREF_RANGE_TYPE_MASK;
580 word brc = get_conf_word(d, PCI_BRIDGE_CONTROL);
581 int verb = verbose > 2;
584 printf("\tBus: primary=%02x, secondary=%02x, subordinate=%02x, sec-latency=%d\n",
585 get_conf_byte(d, PCI_PRIMARY_BUS),
586 get_conf_byte(d, PCI_SECONDARY_BUS),
587 get_conf_byte(d, PCI_SUBORDINATE_BUS),
588 get_conf_byte(d, PCI_SEC_LATENCY_TIMER));
590 if (io_type != (io_limit & PCI_IO_RANGE_TYPE_MASK) ||
591 (io_type != PCI_IO_RANGE_TYPE_16 && io_type != PCI_IO_RANGE_TYPE_32))
592 printf("\t!!! Unknown I/O range types %x/%x\n", io_base, io_limit);
595 io_base = (io_base & PCI_IO_RANGE_MASK) << 8;
596 io_limit = (io_limit & PCI_IO_RANGE_MASK) << 8;
597 if (io_type == PCI_IO_RANGE_TYPE_32)
599 io_base |= (get_conf_word(d, PCI_IO_BASE_UPPER16) << 16);
600 io_limit |= (get_conf_word(d, PCI_IO_LIMIT_UPPER16) << 16);
602 if (io_base <= io_limit || verb)
603 printf("\tI/O behind bridge: %08x-%08x\n", io_base, io_limit+0xfff);
606 if (mem_type != (mem_limit & PCI_MEMORY_RANGE_TYPE_MASK) ||
608 printf("\t!!! Unknown memory range types %x/%x\n", mem_base, mem_limit);
611 mem_base = (mem_base & PCI_MEMORY_RANGE_MASK) << 16;
612 mem_limit = (mem_limit & PCI_MEMORY_RANGE_MASK) << 16;
613 if (mem_base <= mem_limit || verb)
614 printf("\tMemory behind bridge: %08x-%08x\n", mem_base, mem_limit + 0xfffff);
617 if (pref_type != (pref_limit & PCI_PREF_RANGE_TYPE_MASK) ||
618 (pref_type != PCI_PREF_RANGE_TYPE_32 && pref_type != PCI_PREF_RANGE_TYPE_64))
619 printf("\t!!! Unknown prefetchable memory range types %x/%x\n", pref_base, pref_limit);
622 pref_base = (pref_base & PCI_PREF_RANGE_MASK) << 16;
623 pref_limit = (pref_limit & PCI_PREF_RANGE_MASK) << 16;
624 if (pref_base <= pref_limit || verb)
626 if (pref_type == PCI_PREF_RANGE_TYPE_32)
627 printf("\tPrefetchable memory behind bridge: %08x-%08x\n", pref_base, pref_limit + 0xfffff);
629 printf("\tPrefetchable memory behind bridge: %08x%08x-%08x%08x\n",
630 get_conf_long(d, PCI_PREF_BASE_UPPER32),
632 get_conf_long(d, PCI_PREF_LIMIT_UPPER32),
637 if (get_conf_word(d, PCI_SEC_STATUS) & PCI_STATUS_SIG_SYSTEM_ERROR)
638 printf("\tSecondary status: SERR\n");
643 printf("\tBridgeCtl: Parity%c SERR%c NoISA%c VGA%c MAbort%c >Reset%c FastB2B%c\n",
644 FLAG(brc, PCI_BRIDGE_CTL_PARITY),
645 FLAG(brc, PCI_BRIDGE_CTL_SERR),
646 FLAG(brc, PCI_BRIDGE_CTL_NO_ISA),
647 FLAG(brc, PCI_BRIDGE_CTL_VGA),
648 FLAG(brc, PCI_BRIDGE_CTL_MASTER_ABORT),
649 FLAG(brc, PCI_BRIDGE_CTL_BUS_RESET),
650 FLAG(brc, PCI_BRIDGE_CTL_FAST_BACK));
656 show_htype2(struct device *d)
659 word cmd = get_conf_word(d, PCI_COMMAND);
660 word brc = get_conf_word(d, PCI_CB_BRIDGE_CONTROL);
661 word exca = get_conf_word(d, PCI_CB_LEGACY_MODE_BASE);
662 int verb = verbose > 2;
665 printf("\tBus: primary=%02x, secondary=%02x, subordinate=%02x, sec-latency=%d\n",
666 get_conf_byte(d, PCI_CB_PRIMARY_BUS),
667 get_conf_byte(d, PCI_CB_CARD_BUS),
668 get_conf_byte(d, PCI_CB_SUBORDINATE_BUS),
669 get_conf_byte(d, PCI_CB_LATENCY_TIMER));
673 u32 base = get_conf_long(d, PCI_CB_MEMORY_BASE_0 + p);
674 u32 limit = get_conf_long(d, PCI_CB_MEMORY_LIMIT_0 + p);
675 if (limit > base || verb)
676 printf("\tMemory window %d: %08x-%08x%s%s\n", i, base, limit,
677 (cmd & PCI_COMMAND_MEMORY) ? "" : " [disabled]",
678 (brc & (PCI_CB_BRIDGE_CTL_PREFETCH_MEM0 << i)) ? " (prefetchable)" : "");
683 u32 base = get_conf_long(d, PCI_CB_IO_BASE_0 + p);
684 u32 limit = get_conf_long(d, PCI_CB_IO_LIMIT_0 + p);
685 if (!(base & PCI_IO_RANGE_TYPE_32))
690 base &= PCI_CB_IO_RANGE_MASK;
691 limit = (limit & PCI_CB_IO_RANGE_MASK) + 3;
692 if (base <= limit || verb)
693 printf("\tI/O window %d: %08x-%08x%s\n", i, base, limit,
694 (cmd & PCI_COMMAND_IO) ? "" : " [disabled]");
697 if (get_conf_word(d, PCI_CB_SEC_STATUS) & PCI_STATUS_SIG_SYSTEM_ERROR)
698 printf("\tSecondary status: SERR\n");
700 printf("\tBridgeCtl: Parity%c SERR%c ISA%c VGA%c MAbort%c >Reset%c 16bInt%c PostWrite%c\n",
701 FLAG(brc, PCI_CB_BRIDGE_CTL_PARITY),
702 FLAG(brc, PCI_CB_BRIDGE_CTL_SERR),
703 FLAG(brc, PCI_CB_BRIDGE_CTL_ISA),
704 FLAG(brc, PCI_CB_BRIDGE_CTL_VGA),
705 FLAG(brc, PCI_CB_BRIDGE_CTL_MASTER_ABORT),
706 FLAG(brc, PCI_CB_BRIDGE_CTL_CB_RESET),
707 FLAG(brc, PCI_CB_BRIDGE_CTL_16BIT_INT),
708 FLAG(brc, PCI_CB_BRIDGE_CTL_POST_WRITES));
710 printf("\t16-bit legacy interface ports at %04x\n", exca);
714 show_verbose(struct device *d)
716 struct pci_dev *p = d->dev;
717 word status = get_conf_word(d, PCI_STATUS);
718 word cmd = get_conf_word(d, PCI_COMMAND);
719 word class = get_conf_word(d, PCI_CLASS_DEVICE);
720 byte bist = get_conf_byte(d, PCI_BIST);
721 byte htype = get_conf_byte(d, PCI_HEADER_TYPE) & 0x7f;
722 byte latency = get_conf_byte(d, PCI_LATENCY_TIMER);
723 byte cache_line = get_conf_byte(d, PCI_CACHE_LINE_SIZE);
724 byte max_lat, min_gnt;
725 byte int_pin = get_conf_byte(d, PCI_INTERRUPT_PIN);
726 unsigned int irq = p->irq;
727 word subsys_v, subsys_d;
734 case PCI_HEADER_TYPE_NORMAL:
735 if (class == PCI_CLASS_BRIDGE_PCI)
738 printf("\t!!! Header type %02x doesn't match class code %04x\n", htype, class);
741 max_lat = get_conf_byte(d, PCI_MAX_LAT);
742 min_gnt = get_conf_byte(d, PCI_MIN_GNT);
743 subsys_v = get_conf_word(d, PCI_SUBSYSTEM_VENDOR_ID);
744 subsys_d = get_conf_word(d, PCI_SUBSYSTEM_ID);
746 case PCI_HEADER_TYPE_BRIDGE:
747 if (class != PCI_CLASS_BRIDGE_PCI)
749 irq = int_pin = min_gnt = max_lat = 0;
750 subsys_v = subsys_d = 0;
752 case PCI_HEADER_TYPE_CARDBUS:
753 if ((class >> 8) != PCI_BASE_CLASS_BRIDGE)
755 min_gnt = max_lat = 0;
756 subsys_v = get_conf_word(d, PCI_CB_SUBSYSTEM_VENDOR_ID);
757 subsys_d = get_conf_word(d, PCI_CB_SUBSYSTEM_ID);
760 printf("\t!!! Unknown header type %02x\n", htype);
764 if (subsys_v && subsys_v != 0xffff)
765 printf("\tSubsystem: %s\n",
766 pci_lookup_name(pacc, ssnamebuf, sizeof(ssnamebuf),
767 PCI_LOOKUP_SUBSYSTEM | PCI_LOOKUP_VENDOR | PCI_LOOKUP_DEVICE,
768 p->vendor_id, p->device_id, subsys_v, subsys_d));
772 printf("\tControl: I/O%c Mem%c BusMaster%c SpecCycle%c MemWINV%c VGASnoop%c ParErr%c Stepping%c SERR%c FastB2B%c\n",
773 FLAG(cmd, PCI_COMMAND_IO),
774 FLAG(cmd, PCI_COMMAND_MEMORY),
775 FLAG(cmd, PCI_COMMAND_MASTER),
776 FLAG(cmd, PCI_COMMAND_SPECIAL),
777 FLAG(cmd, PCI_COMMAND_INVALIDATE),
778 FLAG(cmd, PCI_COMMAND_VGA_PALETTE),
779 FLAG(cmd, PCI_COMMAND_PARITY),
780 FLAG(cmd, PCI_COMMAND_WAIT),
781 FLAG(cmd, PCI_COMMAND_SERR),
782 FLAG(cmd, PCI_COMMAND_FAST_BACK));
783 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",
784 FLAG(status, PCI_STATUS_CAP_LIST),
785 FLAG(status, PCI_STATUS_66MHZ),
786 FLAG(status, PCI_STATUS_UDF),
787 FLAG(status, PCI_STATUS_FAST_BACK),
788 FLAG(status, PCI_STATUS_PARITY),
789 ((status & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_SLOW) ? "slow" :
790 ((status & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_MEDIUM) ? "medium" :
791 ((status & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_FAST) ? "fast" : "??",
792 FLAG(status, PCI_STATUS_SIG_TARGET_ABORT),
793 FLAG(status, PCI_STATUS_REC_TARGET_ABORT),
794 FLAG(status, PCI_STATUS_REC_MASTER_ABORT),
795 FLAG(status, PCI_STATUS_SIG_SYSTEM_ERROR),
796 FLAG(status, PCI_STATUS_DETECTED_PARITY));
797 if (cmd & PCI_COMMAND_MASTER)
799 printf("\tLatency: ");
801 printf("%d min, ", min_gnt);
803 printf("%d max, ", max_lat);
804 printf("%d set", latency);
806 printf(", cache line size %02x", cache_line);
810 printf("\tInterrupt: pin %c routed to IRQ " IRQ_FORMAT "\n",
811 (int_pin ? 'A' + int_pin - 1 : '?'), irq);
816 if (cmd & PCI_COMMAND_MASTER)
817 printf("bus master, ");
818 if (cmd & PCI_COMMAND_VGA_PALETTE)
819 printf("VGA palette snoop, ");
820 if (cmd & PCI_COMMAND_WAIT)
821 printf("stepping, ");
822 if (cmd & PCI_COMMAND_FAST_BACK)
823 printf("fast Back2Back, ");
824 if (status & PCI_STATUS_66MHZ)
826 if (status & PCI_STATUS_UDF)
827 printf("user-definable features, ");
829 ((status & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_SLOW) ? "slow" :
830 ((status & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_MEDIUM) ? "medium" :
831 ((status & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_FAST) ? "fast" : "??");
832 if (cmd & PCI_COMMAND_MASTER)
833 printf(", latency %d", latency);
835 printf(", IRQ " IRQ_FORMAT, irq);
839 if (bist & PCI_BIST_CAPABLE)
841 if (bist & PCI_BIST_START)
842 printf("\tBIST is running\n");
844 printf("\tBIST result: %02x\n", bist & PCI_BIST_CODE_MASK);
849 case PCI_HEADER_TYPE_NORMAL:
852 case PCI_HEADER_TYPE_BRIDGE:
855 case PCI_HEADER_TYPE_CARDBUS:
862 show_hex_dump(struct device *d)
866 for(i=0; i<d->config_cnt; i++)
870 printf(" %02x", get_conf_byte(d, i));
877 show_machine(struct device *d)
879 struct pci_dev *p = d->dev;
881 word sv_id=0, sd_id=0;
882 char classbuf[128], vendbuf[128], devbuf[128], svbuf[128], sdbuf[128];
884 switch (get_conf_byte(d, PCI_HEADER_TYPE) & 0x7f)
886 case PCI_HEADER_TYPE_NORMAL:
887 sv_id = get_conf_word(d, PCI_SUBSYSTEM_VENDOR_ID);
888 sd_id = get_conf_word(d, PCI_SUBSYSTEM_ID);
890 case PCI_HEADER_TYPE_CARDBUS:
891 sv_id = get_conf_word(d, PCI_CB_SUBSYSTEM_VENDOR_ID);
892 sd_id = get_conf_word(d, PCI_CB_SUBSYSTEM_ID);
898 printf("Device:\t%02x:%02x.%x\n", p->bus, p->dev, p->func);
899 printf("Class:\t%s\n",
900 pci_lookup_name(pacc, classbuf, sizeof(classbuf), PCI_LOOKUP_CLASS, get_conf_word(d, PCI_CLASS_DEVICE), 0, 0, 0));
901 printf("Vendor:\t%s\n",
902 pci_lookup_name(pacc, vendbuf, sizeof(vendbuf), PCI_LOOKUP_VENDOR, p->vendor_id, p->device_id, 0, 0));
903 printf("Device:\t%s\n",
904 pci_lookup_name(pacc, devbuf, sizeof(devbuf), PCI_LOOKUP_DEVICE, p->vendor_id, p->device_id, 0, 0));
905 if (sv_id && sv_id != 0xffff)
907 printf("SVendor:\t%s\n",
908 pci_lookup_name(pacc, svbuf, sizeof(svbuf), PCI_LOOKUP_SUBSYSTEM | PCI_LOOKUP_VENDOR, p->vendor_id, p->device_id, sv_id, sd_id));
909 printf("SDevice:\t%s\n",
910 pci_lookup_name(pacc, sdbuf, sizeof(sdbuf), PCI_LOOKUP_SUBSYSTEM | PCI_LOOKUP_DEVICE, p->vendor_id, p->device_id, sv_id, sd_id));
912 if (c = get_conf_byte(d, PCI_REVISION_ID))
913 printf("Rev:\t%02x\n", c);
914 if (c = get_conf_byte(d, PCI_CLASS_PROG))
915 printf("ProgIf:\t%02x\n", c);
919 printf("%02x:%02x.%x ", p->bus, p->dev, p->func);
920 printf("\"%s\" \"%s\" \"%s\"",
921 pci_lookup_name(pacc, classbuf, sizeof(classbuf), PCI_LOOKUP_CLASS,
922 get_conf_word(d, PCI_CLASS_DEVICE), 0, 0, 0),
923 pci_lookup_name(pacc, vendbuf, sizeof(vendbuf), PCI_LOOKUP_VENDOR,
924 p->vendor_id, p->device_id, 0, 0),
925 pci_lookup_name(pacc, devbuf, sizeof(devbuf), PCI_LOOKUP_DEVICE,
926 p->vendor_id, p->device_id, 0, 0));
927 if (c = get_conf_byte(d, PCI_REVISION_ID))
928 printf(" -r%02x", c);
929 if (c = get_conf_byte(d, PCI_CLASS_PROG))
930 printf(" -p%02x", c);
931 if (sv_id && sv_id != 0xffff)
932 printf(" \"%s\" \"%s\"",
933 pci_lookup_name(pacc, svbuf, sizeof(svbuf), PCI_LOOKUP_SUBSYSTEM | PCI_LOOKUP_VENDOR, p->vendor_id, p->device_id, sv_id, sd_id),
934 pci_lookup_name(pacc, sdbuf, sizeof(sdbuf), PCI_LOOKUP_SUBSYSTEM | PCI_LOOKUP_DEVICE, p->vendor_id, p->device_id, sv_id, sd_id));
936 printf(" \"\" \"\"");
942 show_device(struct device *d)
944 if (machine_readable)
952 if (verbose || show_hex)
961 for(d=first_dev; d; d=d->next)
968 struct bridge *chain; /* Single-linked list of bridges */
969 struct bridge *next, *child; /* Tree of bridges */
970 struct bus *first_bus; /* List of busses connected to this bridge */
971 unsigned int primary, secondary, subordinate; /* Bus numbers */
972 struct device *br_dev;
978 struct device *first_dev, **last_dev;
981 static struct bridge host_bridge = { NULL, NULL, NULL, NULL, ~0, 0, ~0, NULL };
984 find_bus(struct bridge *b, unsigned int n)
988 for(bus=b->first_bus; bus; bus=bus->sibling)
989 if (bus->number == n)
995 new_bus(struct bridge *b, unsigned int n)
997 struct bus *bus = xmalloc(sizeof(struct bus));
999 bus = xmalloc(sizeof(struct bus));
1001 bus->sibling = b->first_bus;
1002 bus->first_dev = NULL;
1003 bus->last_dev = &bus->first_dev;
1009 insert_dev(struct device *d, struct bridge *b)
1011 struct pci_dev *p = d->dev;
1014 if (! (bus = find_bus(b, p->bus)))
1017 for(c=b->child; c; c=c->next)
1018 if (c->secondary <= p->bus && p->bus <= c->subordinate)
1023 bus = new_bus(b, p->bus);
1025 /* Simple insertion at the end _does_ guarantee the correct order as the
1026 * original device list was sorted by (bus, devfn) lexicographically
1027 * and all devices on the new list have the same bus number.
1030 bus->last_dev = &d->next;
1037 struct device *d, *d2;
1038 struct bridge **last_br, *b;
1040 /* Build list of bridges */
1042 last_br = &host_bridge.chain;
1043 for(d=first_dev; d; d=d->next)
1045 word class = get_conf_word(d, PCI_CLASS_DEVICE);
1046 byte ht = get_conf_byte(d, PCI_HEADER_TYPE) & 0x7f;
1047 if (class == PCI_CLASS_BRIDGE_PCI &&
1048 (ht == PCI_HEADER_TYPE_BRIDGE || ht == PCI_HEADER_TYPE_CARDBUS))
1050 b = xmalloc(sizeof(struct bridge));
1051 if (ht == PCI_HEADER_TYPE_BRIDGE)
1053 b->primary = get_conf_byte(d, PCI_CB_PRIMARY_BUS);
1054 b->secondary = get_conf_byte(d, PCI_CB_CARD_BUS);
1055 b->subordinate = get_conf_byte(d, PCI_CB_SUBORDINATE_BUS);
1059 b->primary = get_conf_byte(d, PCI_PRIMARY_BUS);
1060 b->secondary = get_conf_byte(d, PCI_SECONDARY_BUS);
1061 b->subordinate = get_conf_byte(d, PCI_SUBORDINATE_BUS);
1064 last_br = &b->chain;
1065 b->next = b->child = NULL;
1066 b->first_bus = NULL;
1072 /* Create a bridge tree */
1074 for(b=&host_bridge; b; b=b->chain)
1076 struct bridge *c, *best;
1078 for(c=&host_bridge; c; c=c->chain)
1079 if (c != b && b->primary >= c->secondary && b->primary <= c->subordinate &&
1080 (!best || best->subordinate - best->primary > c->subordinate - c->primary))
1084 b->next = best->child;
1089 /* Insert secondary bus for each bridge */
1091 for(b=&host_bridge; b; b=b->chain)
1092 if (!find_bus(b, b->secondary))
1093 new_bus(b, b->secondary);
1095 /* Create bus structs and link devices */
1097 for(d=first_dev; d;)
1100 insert_dev(d, &host_bridge);
1106 print_it(byte *line, byte *p)
1110 fputs(line, stdout);
1111 for(p=line; *p; p++)
1112 if (*p == '+' || *p == '|')
1118 static void show_tree_bridge(struct bridge *, byte *, byte *);
1121 show_tree_dev(struct device *d, byte *line, byte *p)
1123 struct pci_dev *q = d->dev;
1127 p += sprintf(p, "%02x.%x", q->dev, q->func);
1128 for(b=&host_bridge; b; b=b->chain)
1131 if (b->secondary == b->subordinate)
1132 p += sprintf(p, "-[%02x]-", b->secondary);
1134 p += sprintf(p, "-[%02x-%02x]-", b->secondary, b->subordinate);
1135 show_tree_bridge(b, line, p);
1139 p += sprintf(p, " %s",
1140 pci_lookup_name(pacc, namebuf, sizeof(namebuf),
1141 PCI_LOOKUP_VENDOR | PCI_LOOKUP_DEVICE,
1142 q->vendor_id, q->device_id, 0, 0));
1147 show_tree_bus(struct bus *b, byte *line, byte *p)
1151 else if (!b->first_dev->next)
1155 show_tree_dev(b->first_dev, line, p);
1159 struct device *d = b->first_dev;
1164 show_tree_dev(d, line, p+2);
1169 show_tree_dev(d, line, p+2);
1174 show_tree_bridge(struct bridge *b, byte *line, byte *p)
1177 if (!b->first_bus->sibling)
1179 if (b == &host_bridge)
1180 p += sprintf(p, "[%02x]-", b->first_bus->number);
1181 show_tree_bus(b->first_bus, line, p);
1185 struct bus *u = b->first_bus;
1190 k = p + sprintf(p, "+-[%02x]-", u->number);
1191 show_tree_bus(u, line, k);
1194 k = p + sprintf(p, "\\-[%02x]-", u->number);
1195 show_tree_bus(u, line, k);
1205 show_tree_bridge(&host_bridge, line, line);
1208 /* Bus mapping mode */
1211 struct bus_bridge *next;
1212 byte this, dev, func, first, last, bug;
1218 struct bus_bridge *bridges, *via;
1221 static struct bus_info *bus_info;
1224 map_bridge(struct bus_info *bi, struct device *d, int np, int ns, int nl)
1226 struct bus_bridge *b = xmalloc(sizeof(struct bus_bridge));
1227 struct pci_dev *p = d->dev;
1229 b->next = bi->bridges;
1231 b->this = get_conf_byte(d, np);
1234 b->first = get_conf_byte(d, ns);
1235 b->last = get_conf_byte(d, nl);
1236 printf("## %02x.%02x:%d is a bridge from %02x to %02x-%02x\n",
1237 p->bus, p->dev, p->func, b->this, b->first, b->last);
1238 if (b->this != p->bus)
1239 printf("!!! Bridge points to invalid primary bus.\n");
1240 if (b->first > b->last)
1242 printf("!!! Bridge points to invalid bus range.\n");
1251 int verbose = pacc->debugging;
1252 struct bus_info *bi = bus_info + bus;
1256 printf("Mapping bus %02x\n", bus);
1257 for(dev = 0; dev < 32; dev++)
1258 if (filter.slot < 0 || filter.slot == dev)
1261 for(func = 0; func < func_limit; func++)
1262 if (filter.func < 0 || filter.func == func)
1264 struct pci_dev *p = pci_get_dev(pacc, bus, dev, func);
1265 u16 vendor = pci_read_word(p, PCI_VENDOR_ID);
1266 if (vendor && vendor != 0xffff)
1268 if (!func && (pci_read_byte(p, PCI_HEADER_TYPE) & 0x80))
1271 printf("Discovered device %02x:%02x.%d\n", bus, dev, func);
1273 if (d = scan_device(p))
1276 switch (get_conf_byte(d, PCI_HEADER_TYPE) & 0x7f)
1278 case PCI_HEADER_TYPE_BRIDGE:
1279 map_bridge(bi, d, PCI_PRIMARY_BUS, PCI_SECONDARY_BUS, PCI_SUBORDINATE_BUS);
1281 case PCI_HEADER_TYPE_CARDBUS:
1282 map_bridge(bi, d, PCI_CB_PRIMARY_BUS, PCI_CB_CARD_BUS, PCI_CB_SUBORDINATE_BUS);
1288 printf("But it was filtered out.\n");
1296 do_map_bridges(int bus, int min, int max)
1298 struct bus_info *bi = bus_info + bus;
1299 struct bus_bridge *b;
1302 for(b=bi->bridges; b; b=b->next)
1304 if (bus_info[b->first].guestbook)
1306 else if (b->first < min || b->last > max)
1310 bus_info[b->first].via = b;
1311 do_map_bridges(b->first, b->first, b->last);
1321 printf("\nSummary of buses:\n\n");
1322 for(i=0; i<256; i++)
1323 if (bus_info[i].exists && !bus_info[i].guestbook)
1324 do_map_bridges(i, 0, 255);
1325 for(i=0; i<256; i++)
1327 struct bus_info *bi = bus_info + i;
1328 struct bus_bridge *b = bi->via;
1332 printf("%02x: ", i);
1334 printf("Entered via %02x:%02x.%d\n", b->this, b->dev, b->func);
1336 printf("Primary host bus\n");
1338 printf("Secondary host bus (?)\n");
1340 for(b=bi->bridges; b; b=b->next)
1342 printf("\t%02x.%d Bridge to %02x-%02x", b->dev, b->func, b->first, b->last);
1346 printf(" <overlap bug>");
1349 printf(" <crossing bug>");
1360 if (pacc->method == PCI_ACCESS_PROC_BUS_PCI ||
1361 pacc->method == PCI_ACCESS_DUMP)
1362 printf("WARNING: Bus mapping can be reliable only with direct hardware access enabled.\n\n");
1363 else if (!check_root())
1364 die("Only root can map the bus.");
1365 bus_info = xmalloc(sizeof(struct bus_info) * 256);
1366 bzero(bus_info, sizeof(struct bus_info) * 256);
1367 if (filter.bus >= 0)
1368 do_map_bus(filter.bus);
1372 for(bus=0; bus<256; bus++)
1381 main(int argc, char **argv)
1386 if (argc == 2 && !strcmp(argv[1], "--version"))
1388 puts("lspci version " PCIUTILS_VERSION);
1394 pci_filter_init(pacc, &filter);
1396 while ((i = getopt(argc, argv, options)) != -1)
1400 pacc->numeric_ids = 1;
1406 pacc->buscentric = 1;
1407 buscentric_view = 1;
1410 if (msg = pci_filter_parse_slot(&filter, optarg))
1414 if (msg = pci_filter_parse_id(&filter, optarg))
1424 pacc->id_file_name = optarg;
1433 if (parse_generic_option(i, pacc, optarg))
1436 fprintf(stderr, help_msg, pacc->id_file_name);