2 * $Id: lspci.c,v 1.35 2000/01/23 05:57:04 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"
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, 64, 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, 0, 0),
238 pci_lookup_name(pacc, devbuf, sizeof(devbuf),
239 PCI_LOOKUP_VENDOR | PCI_LOOKUP_DEVICE,
240 p->vendor_id, p->device_id, 0, 0));
241 if (c = get_conf_byte(d, PCI_REVISION_ID))
242 printf(" (rev %02x)", c);
246 c = get_conf_byte(d, PCI_CLASS_PROG);
247 x = pci_lookup_name(pacc, devbuf, sizeof(devbuf),
249 get_conf_word(d, PCI_CLASS_DEVICE), c, 0, 0);
252 printf(" (prog-if %02x", c);
262 show_size(pciaddr_t x)
268 printf("%d", (int) x);
269 else if (x < 1048576)
270 printf("%dK", (int)(x / 1024));
271 else if (x < 0x80000000)
272 printf("%dM", (int)(x / 1048576));
274 printf(ADDR_FORMAT, x);
279 show_bases(struct device *d, int cnt)
281 struct pci_dev *p = d->dev;
282 word cmd = get_conf_word(d, PCI_COMMAND);
287 pciaddr_t pos = p->base_addr[i];
288 pciaddr_t len = (p->known_fields & PCI_FILL_SIZES) ? p->size[i] : 0;
289 u32 flg = get_conf_long(d, PCI_BASE_ADDRESS_0 + 4*i);
290 if (flg == 0xffffffff)
292 if (!pos && !flg && !len)
295 printf("\tRegion %d: ", i);
298 if (pos && !flg) /* Reported by the OS, but not by the device */
300 printf("[virtual] ");
303 if (flg & PCI_BASE_ADDRESS_SPACE_IO)
305 pciaddr_t a = pos & PCI_BASE_ADDRESS_IO_MASK;
306 printf("I/O ports at ");
308 printf(IO_FORMAT, a);
309 else if (flg & PCI_BASE_ADDRESS_IO_MASK)
312 printf("<unassigned>");
313 if (!(cmd & PCI_COMMAND_IO))
314 printf(" [disabled]");
318 int t = flg & PCI_BASE_ADDRESS_MEM_TYPE_MASK;
319 pciaddr_t a = pos & PCI_ADDR_MEM_MASK;
323 printf("Memory at ");
324 if (t == PCI_BASE_ADDRESS_MEM_TYPE_64)
328 printf("<invalid-64bit-slot>");
334 z = get_conf_long(d, PCI_BASE_ADDRESS_0 + 4*i);
338 printf("%08x" ADDR_FORMAT, z, a);
340 printf("<unassigned>");
348 printf(ADDR_FORMAT, a);
350 printf(((flg & PCI_BASE_ADDRESS_MEM_MASK) || z) ? "<ignored>" : "<unassigned>");
352 printf(" (%s, %sprefetchable)",
353 (t == PCI_BASE_ADDRESS_MEM_TYPE_32) ? "32-bit" :
354 (t == PCI_BASE_ADDRESS_MEM_TYPE_64) ? "64-bit" :
355 (t == PCI_BASE_ADDRESS_MEM_TYPE_1M) ? "low-1M" : "type 3",
356 (flg & PCI_BASE_ADDRESS_MEM_PREFETCH) ? "" : "non-");
357 if (!(cmd & PCI_COMMAND_MEMORY))
358 printf(" [disabled]");
366 show_pm(struct device *d, int where, int cap)
370 printf("Power Management version %d\n", cap & PCI_PM_CAP_VER_MASK);
373 printf("\t\tFlags: PMEClk%c AuxPwr%c DSI%c D1%c D2%c PME%c\n",
374 FLAG(cap, PCI_PM_CAP_PME_CLOCK),
375 FLAG(cap, PCI_PM_CAP_AUX_POWER),
376 FLAG(cap, PCI_PM_CAP_DSI),
377 FLAG(cap, PCI_PM_CAP_D1),
378 FLAG(cap, PCI_PM_CAP_D2),
379 FLAG(cap, PCI_PM_CAP_PME));
380 config_fetch(d, where + PCI_PM_CTRL, PCI_PM_SIZEOF - PCI_PM_CTRL);
381 t = get_conf_word(d, where + PCI_PM_CTRL);
382 printf("\t\tStatus: D%d PME-Enable%c DSel=%x DScale=%x PME%c\n",
383 t & PCI_PM_CTRL_STATE_MASK,
384 FLAG(t, PCI_PM_CTRL_PME_ENABLE),
385 (t & PCI_PM_CTRL_DATA_SEL_MASK) >> 9,
386 (t & PCI_PM_CTRL_DATA_SCALE_MASK) >> 13,
387 FLAG(t, PCI_PM_CTRL_PME_STATUS));
391 format_agp_rate(int rate, char *buf)
402 *c++ = '0' + (1 << i);
407 strcpy(buf, "<none>");
411 show_agp(struct device *d, int where, int cap)
417 printf("AGP version %x.%x\n", cap/16, cap%16);
420 config_fetch(d, where + PCI_AGP_STATUS, PCI_AGP_SIZEOF - PCI_AGP_STATUS);
421 t = get_conf_long(d, where + PCI_AGP_STATUS);
422 format_agp_rate(t & 7, rate);
423 printf("\t\tStatus: RQ=%d SBA%c 64bit%c FW%c Rate=%s\n",
424 (t & PCI_AGP_STATUS_RQ_MASK) >> 24U,
425 FLAG(t, PCI_AGP_STATUS_SBA),
426 FLAG(t, PCI_AGP_STATUS_64BIT),
427 FLAG(t, PCI_AGP_STATUS_FW),
429 t = get_conf_long(d, where + PCI_AGP_COMMAND);
430 format_agp_rate(t & 7, rate);
431 printf("\t\tCommand: RQ=%d SBA%c AGP%c 64bit%c FW%c Rate=%s\n",
432 (t & PCI_AGP_COMMAND_RQ_MASK) >> 24U,
433 FLAG(t, PCI_AGP_COMMAND_SBA),
434 FLAG(t, PCI_AGP_COMMAND_AGP),
435 FLAG(t, PCI_AGP_COMMAND_64BIT),
436 FLAG(t, PCI_AGP_COMMAND_FW),
441 show_rom(struct device *d)
443 struct pci_dev *p = d->dev;
444 pciaddr_t rom = p->rom_base_addr;
445 pciaddr_t len = (p->known_fields & PCI_FILL_SIZES) ? p->rom_size : 0;
449 printf("\tExpansion ROM at ");
450 if (rom & PCI_ROM_ADDRESS_MASK)
451 printf(ADDR_FORMAT, rom & PCI_ROM_ADDRESS_MASK);
453 printf("<unassigned>");
454 if (!(rom & PCI_ROM_ADDRESS_ENABLE))
455 printf(" [disabled]");
461 show_msi(struct device *d, int where, int cap)
467 printf("Message Signalled Interrupts: 64bit%c Queue=%d/%d Enable%c\n",
468 FLAG(cap, PCI_MSI_FLAGS_64BIT),
469 (cap & PCI_MSI_FLAGS_QSIZE) >> 4,
470 (cap & PCI_MSI_FLAGS_QMASK) >> 1,
471 FLAG(cap, PCI_MSI_FLAGS_ENABLE));
474 is64 = cap & PCI_MSI_FLAGS_64BIT;
475 config_fetch(d, where + PCI_MSI_ADDRESS_LO, (is64 ? PCI_MSI_DATA_64 : PCI_MSI_DATA_32) + 2 - PCI_MSI_ADDRESS_LO);
476 printf("\t\tAddress: ");
479 t = get_conf_long(d, where + PCI_MSI_ADDRESS_HI);
480 w = get_conf_word(d, where + PCI_MSI_DATA_64);
484 w = get_conf_word(d, where + PCI_MSI_DATA_32);
485 t = get_conf_long(d, where + PCI_MSI_ADDRESS_LO);
486 printf("%08x Data: %04x\n", t, w);
492 int esr = cap & 0xff;
495 printf("Slot ID: %d slots, First%c, chassis %02x\n",
496 esr & PCI_SID_ESR_NSLOTS,
497 FLAG(esr, PCI_SID_ESR_FIC),
502 show_caps(struct device *d)
504 if (get_conf_word(d, PCI_STATUS) & PCI_STATUS_CAP_LIST)
506 int where = get_conf_byte(d, PCI_CAPABILITY_LIST) & ~3;
510 printf("\tCapabilities: ");
511 if (!config_fetch(d, where, 4))
513 puts("<available only to root>");
516 id = get_conf_byte(d, where + PCI_CAP_LIST_ID);
517 next = get_conf_byte(d, where + PCI_CAP_LIST_NEXT) & ~3;
518 cap = get_conf_word(d, where + PCI_CAP_FLAGS);
519 printf("[%02x] ", where);
522 printf("<chain broken>\n");
528 show_pm(d, where, cap);
531 show_agp(d, where, cap);
534 printf("Vital Product Data\n");
536 case PCI_CAP_ID_SLOTID:
540 show_msi(d, where, cap);
543 printf("#%02x [%04x]\n", id, cap);
551 show_htype0(struct device *d)
559 show_htype1(struct device *d)
561 u32 io_base = get_conf_byte(d, PCI_IO_BASE);
562 u32 io_limit = get_conf_byte(d, PCI_IO_LIMIT);
563 u32 io_type = io_base & PCI_IO_RANGE_TYPE_MASK;
564 u32 mem_base = get_conf_word(d, PCI_MEMORY_BASE);
565 u32 mem_limit = get_conf_word(d, PCI_MEMORY_LIMIT);
566 u32 mem_type = mem_base & PCI_MEMORY_RANGE_TYPE_MASK;
567 u32 pref_base = get_conf_word(d, PCI_PREF_MEMORY_BASE);
568 u32 pref_limit = get_conf_word(d, PCI_PREF_MEMORY_LIMIT);
569 u32 pref_type = pref_base & PCI_PREF_RANGE_TYPE_MASK;
570 word brc = get_conf_word(d, PCI_BRIDGE_CONTROL);
571 int verb = verbose > 2;
574 printf("\tBus: primary=%02x, secondary=%02x, subordinate=%02x, sec-latency=%d\n",
575 get_conf_byte(d, PCI_PRIMARY_BUS),
576 get_conf_byte(d, PCI_SECONDARY_BUS),
577 get_conf_byte(d, PCI_SUBORDINATE_BUS),
578 get_conf_byte(d, PCI_SEC_LATENCY_TIMER));
580 if (io_type != (io_limit & PCI_IO_RANGE_TYPE_MASK) ||
581 (io_type != PCI_IO_RANGE_TYPE_16 && io_type != PCI_IO_RANGE_TYPE_32))
582 printf("\t!!! Unknown I/O range types %x/%x\n", io_base, io_limit);
585 io_base = (io_base & PCI_IO_RANGE_MASK) << 8;
586 io_limit = (io_limit & PCI_IO_RANGE_MASK) << 8;
587 if (io_type == PCI_IO_RANGE_TYPE_32)
589 io_base |= (get_conf_word(d, PCI_IO_BASE_UPPER16) << 16);
590 io_limit |= (get_conf_word(d, PCI_IO_LIMIT_UPPER16) << 16);
592 if (io_base <= io_limit || verb)
593 printf("\tI/O behind bridge: %08x-%08x\n", io_base, io_limit+0xfff);
596 if (mem_type != (mem_limit & PCI_MEMORY_RANGE_TYPE_MASK) ||
598 printf("\t!!! Unknown memory range types %x/%x\n", mem_base, mem_limit);
601 mem_base = (mem_base & PCI_MEMORY_RANGE_MASK) << 16;
602 mem_limit = (mem_limit & PCI_MEMORY_RANGE_MASK) << 16;
603 if (mem_base <= mem_limit || verb)
604 printf("\tMemory behind bridge: %08x-%08x\n", mem_base, mem_limit + 0xfffff);
607 if (pref_type != (pref_limit & PCI_PREF_RANGE_TYPE_MASK) ||
608 (pref_type != PCI_PREF_RANGE_TYPE_32 && pref_type != PCI_PREF_RANGE_TYPE_64))
609 printf("\t!!! Unknown prefetchable memory range types %x/%x\n", pref_base, pref_limit);
612 pref_base = (pref_base & PCI_PREF_RANGE_MASK) << 16;
613 pref_limit = (pref_limit & PCI_PREF_RANGE_MASK) << 16;
614 if (pref_base <= pref_limit || verb)
616 if (pref_type == PCI_PREF_RANGE_TYPE_32)
617 printf("\tPrefetchable memory behind bridge: %08x-%08x\n", pref_base, pref_limit + 0xfffff);
619 printf("\tPrefetchable memory behind bridge: %08x%08x-%08x%08x\n",
620 get_conf_long(d, PCI_PREF_BASE_UPPER32),
622 get_conf_long(d, PCI_PREF_LIMIT_UPPER32),
627 if (get_conf_word(d, PCI_SEC_STATUS) & PCI_STATUS_SIG_SYSTEM_ERROR)
628 printf("\tSecondary status: SERR\n");
633 printf("\tBridgeCtl: Parity%c SERR%c NoISA%c VGA%c MAbort%c >Reset%c FastB2B%c\n",
634 FLAG(brc, PCI_BRIDGE_CTL_PARITY),
635 FLAG(brc, PCI_BRIDGE_CTL_SERR),
636 FLAG(brc, PCI_BRIDGE_CTL_NO_ISA),
637 FLAG(brc, PCI_BRIDGE_CTL_VGA),
638 FLAG(brc, PCI_BRIDGE_CTL_MASTER_ABORT),
639 FLAG(brc, PCI_BRIDGE_CTL_BUS_RESET),
640 FLAG(brc, PCI_BRIDGE_CTL_FAST_BACK));
646 show_htype2(struct device *d)
649 word cmd = get_conf_word(d, PCI_COMMAND);
650 word brc = get_conf_word(d, PCI_CB_BRIDGE_CONTROL);
651 word exca = get_conf_word(d, PCI_CB_LEGACY_MODE_BASE);
652 int verb = verbose > 2;
655 printf("\tBus: primary=%02x, secondary=%02x, subordinate=%02x, sec-latency=%d\n",
656 get_conf_byte(d, PCI_CB_PRIMARY_BUS),
657 get_conf_byte(d, PCI_CB_CARD_BUS),
658 get_conf_byte(d, PCI_CB_SUBORDINATE_BUS),
659 get_conf_byte(d, PCI_CB_LATENCY_TIMER));
663 u32 base = get_conf_long(d, PCI_CB_MEMORY_BASE_0 + p);
664 u32 limit = get_conf_long(d, PCI_CB_MEMORY_LIMIT_0 + p);
665 if (limit > base || verb)
666 printf("\tMemory window %d: %08x-%08x%s%s\n", i, base, limit,
667 (cmd & PCI_COMMAND_MEMORY) ? "" : " [disabled]",
668 (brc & (PCI_CB_BRIDGE_CTL_PREFETCH_MEM0 << i)) ? " (prefetchable)" : "");
673 u32 base = get_conf_long(d, PCI_CB_IO_BASE_0 + p);
674 u32 limit = get_conf_long(d, PCI_CB_IO_LIMIT_0 + p);
675 if (!(base & PCI_IO_RANGE_TYPE_32))
680 base &= PCI_CB_IO_RANGE_MASK;
681 limit = (limit & PCI_CB_IO_RANGE_MASK) + 3;
682 if (base <= limit || verb)
683 printf("\tI/O window %d: %08x-%08x%s\n", i, base, limit,
684 (cmd & PCI_COMMAND_IO) ? "" : " [disabled]");
687 if (get_conf_word(d, PCI_CB_SEC_STATUS) & PCI_STATUS_SIG_SYSTEM_ERROR)
688 printf("\tSecondary status: SERR\n");
690 printf("\tBridgeCtl: Parity%c SERR%c ISA%c VGA%c MAbort%c >Reset%c 16bInt%c PostWrite%c\n",
691 FLAG(brc, PCI_CB_BRIDGE_CTL_PARITY),
692 FLAG(brc, PCI_CB_BRIDGE_CTL_SERR),
693 FLAG(brc, PCI_CB_BRIDGE_CTL_ISA),
694 FLAG(brc, PCI_CB_BRIDGE_CTL_VGA),
695 FLAG(brc, PCI_CB_BRIDGE_CTL_MASTER_ABORT),
696 FLAG(brc, PCI_CB_BRIDGE_CTL_CB_RESET),
697 FLAG(brc, PCI_CB_BRIDGE_CTL_16BIT_INT),
698 FLAG(brc, PCI_CB_BRIDGE_CTL_POST_WRITES));
700 printf("\t16-bit legacy interface ports at %04x\n", exca);
704 show_verbose(struct device *d)
706 struct pci_dev *p = d->dev;
707 word status = get_conf_word(d, PCI_STATUS);
708 word cmd = get_conf_word(d, PCI_COMMAND);
709 word class = get_conf_word(d, PCI_CLASS_DEVICE);
710 byte bist = get_conf_byte(d, PCI_BIST);
711 byte htype = get_conf_byte(d, PCI_HEADER_TYPE) & 0x7f;
712 byte latency = get_conf_byte(d, PCI_LATENCY_TIMER);
713 byte cache_line = get_conf_byte(d, PCI_CACHE_LINE_SIZE);
714 byte max_lat, min_gnt;
715 byte int_pin = get_conf_byte(d, PCI_INTERRUPT_PIN);
716 unsigned int irq = p->irq;
717 word subsys_v, subsys_d;
724 case PCI_HEADER_TYPE_NORMAL:
725 if (class == PCI_CLASS_BRIDGE_PCI)
728 printf("\t!!! Header type %02x doesn't match class code %04x\n", htype, class);
731 max_lat = get_conf_byte(d, PCI_MAX_LAT);
732 min_gnt = get_conf_byte(d, PCI_MIN_GNT);
733 subsys_v = get_conf_word(d, PCI_SUBSYSTEM_VENDOR_ID);
734 subsys_d = get_conf_word(d, PCI_SUBSYSTEM_ID);
736 case PCI_HEADER_TYPE_BRIDGE:
737 if (class != PCI_CLASS_BRIDGE_PCI)
739 irq = int_pin = min_gnt = max_lat = 0;
740 subsys_v = subsys_d = 0;
742 case PCI_HEADER_TYPE_CARDBUS:
743 if ((class >> 8) != PCI_BASE_CLASS_BRIDGE)
745 min_gnt = max_lat = 0;
746 subsys_v = get_conf_word(d, PCI_CB_SUBSYSTEM_VENDOR_ID);
747 subsys_d = get_conf_word(d, PCI_CB_SUBSYSTEM_ID);
750 printf("\t!!! Unknown header type %02x\n", htype);
754 if (subsys_v && subsys_v != 0xffff)
755 printf("\tSubsystem: %s\n",
756 pci_lookup_name(pacc, ssnamebuf, sizeof(ssnamebuf),
757 PCI_LOOKUP_SUBSYSTEM | PCI_LOOKUP_VENDOR | PCI_LOOKUP_DEVICE,
758 p->vendor_id, p->device_id, subsys_v, subsys_d));
762 printf("\tControl: I/O%c Mem%c BusMaster%c SpecCycle%c MemWINV%c VGASnoop%c ParErr%c Stepping%c SERR%c FastB2B%c\n",
763 FLAG(cmd, PCI_COMMAND_IO),
764 FLAG(cmd, PCI_COMMAND_MEMORY),
765 FLAG(cmd, PCI_COMMAND_MASTER),
766 FLAG(cmd, PCI_COMMAND_SPECIAL),
767 FLAG(cmd, PCI_COMMAND_INVALIDATE),
768 FLAG(cmd, PCI_COMMAND_VGA_PALETTE),
769 FLAG(cmd, PCI_COMMAND_PARITY),
770 FLAG(cmd, PCI_COMMAND_WAIT),
771 FLAG(cmd, PCI_COMMAND_SERR),
772 FLAG(cmd, PCI_COMMAND_FAST_BACK));
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\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 if (cmd & PCI_COMMAND_MASTER)
789 printf("\tLatency: ");
791 printf("%d min, ", min_gnt);
793 printf("%d max, ", max_lat);
794 printf("%d set", latency);
796 printf(", cache line size %02x", cache_line);
800 printf("\tInterrupt: pin %c routed to IRQ " IRQ_FORMAT "\n",
801 (int_pin ? 'A' + int_pin - 1 : '?'), irq);
806 if (cmd & PCI_COMMAND_MASTER)
807 printf("bus master, ");
808 if (cmd & PCI_COMMAND_VGA_PALETTE)
809 printf("VGA palette snoop, ");
810 if (cmd & PCI_COMMAND_WAIT)
811 printf("stepping, ");
812 if (cmd & PCI_COMMAND_FAST_BACK)
813 printf("fast Back2Back, ");
814 if (status & PCI_STATUS_66MHZ)
816 if (status & PCI_STATUS_UDF)
817 printf("user-definable features, ");
819 ((status & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_SLOW) ? "slow" :
820 ((status & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_MEDIUM) ? "medium" :
821 ((status & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_FAST) ? "fast" : "??");
822 if (cmd & PCI_COMMAND_MASTER)
823 printf(", latency %d", latency);
825 printf(", IRQ " IRQ_FORMAT, irq);
829 if (bist & PCI_BIST_CAPABLE)
831 if (bist & PCI_BIST_START)
832 printf("\tBIST is running\n");
834 printf("\tBIST result: %02x\n", bist & PCI_BIST_CODE_MASK);
839 case PCI_HEADER_TYPE_NORMAL:
842 case PCI_HEADER_TYPE_BRIDGE:
845 case PCI_HEADER_TYPE_CARDBUS:
852 show_hex_dump(struct device *d)
856 for(i=0; i<d->config_cnt; i++)
860 printf(" %02x", get_conf_byte(d, i));
867 show_machine(struct device *d)
869 struct pci_dev *p = d->dev;
871 word sv_id=0, sd_id=0;
872 char classbuf[128], vendbuf[128], devbuf[128], svbuf[128], sdbuf[128];
874 switch (get_conf_byte(d, PCI_HEADER_TYPE) & 0x7f)
876 case PCI_HEADER_TYPE_NORMAL:
877 sv_id = get_conf_word(d, PCI_SUBSYSTEM_VENDOR_ID);
878 sd_id = get_conf_word(d, PCI_SUBSYSTEM_ID);
880 case PCI_HEADER_TYPE_CARDBUS:
881 sv_id = get_conf_word(d, PCI_CB_SUBSYSTEM_VENDOR_ID);
882 sd_id = get_conf_word(d, PCI_CB_SUBSYSTEM_ID);
888 printf("Device:\t%02x:%02x.%x\n", p->bus, p->dev, p->func);
889 printf("Class:\t%s\n",
890 pci_lookup_name(pacc, classbuf, sizeof(classbuf), PCI_LOOKUP_CLASS, get_conf_word(d, PCI_CLASS_DEVICE), 0, 0, 0));
891 printf("Vendor:\t%s\n",
892 pci_lookup_name(pacc, vendbuf, sizeof(vendbuf), PCI_LOOKUP_VENDOR, p->vendor_id, p->device_id, 0, 0));
893 printf("Device:\t%s\n",
894 pci_lookup_name(pacc, devbuf, sizeof(devbuf), PCI_LOOKUP_DEVICE, p->vendor_id, p->device_id, 0, 0));
895 if (sv_id && sv_id != 0xffff)
897 printf("SVendor:\t%s\n",
898 pci_lookup_name(pacc, svbuf, sizeof(svbuf), PCI_LOOKUP_SUBSYSTEM | PCI_LOOKUP_VENDOR, p->vendor_id, p->device_id, sv_id, sd_id));
899 printf("SDevice:\t%s\n",
900 pci_lookup_name(pacc, sdbuf, sizeof(sdbuf), PCI_LOOKUP_SUBSYSTEM | PCI_LOOKUP_DEVICE, p->vendor_id, p->device_id, sv_id, sd_id));
902 if (c = get_conf_byte(d, PCI_REVISION_ID))
903 printf("Rev:\t%02x\n", c);
904 if (c = get_conf_byte(d, PCI_CLASS_PROG))
905 printf("ProgIf:\t%02x\n", c);
909 printf("%02x:%02x.%x ", p->bus, p->dev, p->func);
910 printf("\"%s\" \"%s\" \"%s\"",
911 pci_lookup_name(pacc, classbuf, sizeof(classbuf), PCI_LOOKUP_CLASS,
912 get_conf_word(d, PCI_CLASS_DEVICE), 0, 0, 0),
913 pci_lookup_name(pacc, vendbuf, sizeof(vendbuf), PCI_LOOKUP_VENDOR,
914 p->vendor_id, p->device_id, 0, 0),
915 pci_lookup_name(pacc, devbuf, sizeof(devbuf), PCI_LOOKUP_DEVICE,
916 p->vendor_id, p->device_id, 0, 0));
917 if (c = get_conf_byte(d, PCI_REVISION_ID))
918 printf(" -r%02x", c);
919 if (c = get_conf_byte(d, PCI_CLASS_PROG))
920 printf(" -p%02x", c);
921 if (sv_id && sv_id != 0xffff)
922 printf(" \"%s\" \"%s\"",
923 pci_lookup_name(pacc, svbuf, sizeof(svbuf), PCI_LOOKUP_SUBSYSTEM | PCI_LOOKUP_VENDOR, p->vendor_id, p->device_id, sv_id, sd_id),
924 pci_lookup_name(pacc, sdbuf, sizeof(sdbuf), PCI_LOOKUP_SUBSYSTEM | PCI_LOOKUP_DEVICE, p->vendor_id, p->device_id, sv_id, sd_id));
926 printf(" \"\" \"\"");
932 show_device(struct device *d)
934 if (machine_readable)
942 if (verbose || show_hex)
951 for(d=first_dev; d; d=d->next)
958 struct bridge *chain; /* Single-linked list of bridges */
959 struct bridge *next, *child; /* Tree of bridges */
960 struct bus *first_bus; /* List of busses connected to this bridge */
961 unsigned int primary, secondary, subordinate; /* Bus numbers */
962 struct device *br_dev;
968 struct device *first_dev, **last_dev;
971 static struct bridge host_bridge = { NULL, NULL, NULL, NULL, ~0, 0, ~0, NULL };
974 find_bus(struct bridge *b, unsigned int n)
978 for(bus=b->first_bus; bus; bus=bus->sibling)
979 if (bus->number == n)
985 new_bus(struct bridge *b, unsigned int n)
987 struct bus *bus = xmalloc(sizeof(struct bus));
989 bus = xmalloc(sizeof(struct bus));
991 bus->sibling = b->first_bus;
992 bus->first_dev = NULL;
993 bus->last_dev = &bus->first_dev;
999 insert_dev(struct device *d, struct bridge *b)
1001 struct pci_dev *p = d->dev;
1004 if (! (bus = find_bus(b, p->bus)))
1007 for(c=b->child; c; c=c->next)
1008 if (c->secondary <= p->bus && p->bus <= c->subordinate)
1009 return insert_dev(d, c);
1010 bus = new_bus(b, p->bus);
1012 /* Simple insertion at the end _does_ guarantee the correct order as the
1013 * original device list was sorted by (bus, devfn) lexicographically
1014 * and all devices on the new list have the same bus number.
1017 bus->last_dev = &d->next;
1024 struct device *d, *d2;
1025 struct bridge **last_br, *b;
1027 /* Build list of bridges */
1029 last_br = &host_bridge.chain;
1030 for(d=first_dev; d; d=d->next)
1032 word class = get_conf_word(d, PCI_CLASS_DEVICE);
1033 byte ht = get_conf_byte(d, PCI_HEADER_TYPE) & 0x7f;
1034 if (class == PCI_CLASS_BRIDGE_PCI &&
1035 (ht == PCI_HEADER_TYPE_BRIDGE || ht == PCI_HEADER_TYPE_CARDBUS))
1037 b = xmalloc(sizeof(struct bridge));
1038 if (ht == PCI_HEADER_TYPE_BRIDGE)
1040 b->primary = get_conf_byte(d, PCI_CB_PRIMARY_BUS);
1041 b->secondary = get_conf_byte(d, PCI_CB_CARD_BUS);
1042 b->subordinate = get_conf_byte(d, PCI_CB_SUBORDINATE_BUS);
1046 b->primary = get_conf_byte(d, PCI_PRIMARY_BUS);
1047 b->secondary = get_conf_byte(d, PCI_SECONDARY_BUS);
1048 b->subordinate = get_conf_byte(d, PCI_SUBORDINATE_BUS);
1051 last_br = &b->chain;
1052 b->next = b->child = NULL;
1053 b->first_bus = NULL;
1059 /* Create a bridge tree */
1061 for(b=&host_bridge; b; b=b->chain)
1063 struct bridge *c, *best;
1065 for(c=&host_bridge; c; c=c->chain)
1066 if (c != b && b->primary >= c->secondary && b->primary <= c->subordinate &&
1067 (!best || best->subordinate - best->primary > c->subordinate - c->primary))
1071 b->next = best->child;
1076 /* Insert secondary bus for each bridge */
1078 for(b=&host_bridge; b; b=b->chain)
1079 if (!find_bus(b, b->secondary))
1080 new_bus(b, b->secondary);
1082 /* Create bus structs and link devices */
1084 for(d=first_dev; d;)
1087 insert_dev(d, &host_bridge);
1093 print_it(byte *line, byte *p)
1097 fputs(line, stdout);
1098 for(p=line; *p; p++)
1099 if (*p == '+' || *p == '|')
1105 static void show_tree_bridge(struct bridge *, byte *, byte *);
1108 show_tree_dev(struct device *d, byte *line, byte *p)
1110 struct pci_dev *q = d->dev;
1114 p += sprintf(p, "%02x.%x", q->dev, q->func);
1115 for(b=&host_bridge; b; b=b->chain)
1118 if (b->secondary == b->subordinate)
1119 p += sprintf(p, "-[%02x]-", b->secondary);
1121 p += sprintf(p, "-[%02x-%02x]-", b->secondary, b->subordinate);
1122 show_tree_bridge(b, line, p);
1126 p += sprintf(p, " %s",
1127 pci_lookup_name(pacc, namebuf, sizeof(namebuf),
1128 PCI_LOOKUP_VENDOR | PCI_LOOKUP_DEVICE,
1129 q->vendor_id, q->device_id, 0, 0));
1134 show_tree_bus(struct bus *b, byte *line, byte *p)
1138 else if (!b->first_dev->next)
1142 show_tree_dev(b->first_dev, line, p);
1146 struct device *d = b->first_dev;
1151 show_tree_dev(d, line, p+2);
1156 show_tree_dev(d, line, p+2);
1161 show_tree_bridge(struct bridge *b, byte *line, byte *p)
1164 if (!b->first_bus->sibling)
1166 if (b == &host_bridge)
1167 p += sprintf(p, "[%02x]-", b->first_bus->number);
1168 show_tree_bus(b->first_bus, line, p);
1172 struct bus *u = b->first_bus;
1177 k = p + sprintf(p, "+-[%02x]-", u->number);
1178 show_tree_bus(u, line, k);
1181 k = p + sprintf(p, "\\-[%02x]-", u->number);
1182 show_tree_bus(u, line, k);
1192 show_tree_bridge(&host_bridge, line, line);
1195 /* Bus mapping mode */
1198 struct bus_bridge *next;
1199 byte this, dev, func, first, last, bug;
1205 struct bus_bridge *bridges, *via;
1208 static struct bus_info *bus_info;
1211 map_bridge(struct bus_info *bi, struct device *d, int np, int ns, int nl)
1213 struct bus_bridge *b = xmalloc(sizeof(struct bus_bridge));
1214 struct pci_dev *p = d->dev;
1216 b->next = bi->bridges;
1218 b->this = get_conf_byte(d, np);
1221 b->first = get_conf_byte(d, ns);
1222 b->last = get_conf_byte(d, nl);
1223 printf("## %02x.%02x:%d is a bridge from %02x to %02x-%02x\n",
1224 p->bus, p->dev, p->func, b->this, b->first, b->last);
1225 if (b->this != p->bus)
1226 printf("!!! Bridge points to invalid primary bus.\n");
1227 if (b->first > b->last)
1229 printf("!!! Bridge points to invalid bus range.\n");
1238 int verbose = pacc->debugging;
1239 struct bus_info *bi = bus_info + bus;
1243 printf("Mapping bus %02x\n", bus);
1244 for(dev = 0; dev < 32; dev++)
1245 if (filter.slot < 0 || filter.slot == dev)
1248 for(func = 0; func < func_limit; func++)
1249 if (filter.func < 0 || filter.func == func)
1251 struct pci_dev *p = pci_get_dev(pacc, bus, dev, func);
1252 u16 vendor = pci_read_word(p, PCI_VENDOR_ID);
1253 if (vendor && vendor != 0xffff)
1255 if (!func && (pci_read_byte(p, PCI_HEADER_TYPE) & 0x80))
1258 printf("Discovered device %02x:%02x.%d\n", bus, dev, func);
1260 if (d = scan_device(p))
1263 switch (get_conf_byte(d, PCI_HEADER_TYPE) & 0x7f)
1265 case PCI_HEADER_TYPE_BRIDGE:
1266 map_bridge(bi, d, PCI_PRIMARY_BUS, PCI_SECONDARY_BUS, PCI_SUBORDINATE_BUS);
1268 case PCI_HEADER_TYPE_CARDBUS:
1269 map_bridge(bi, d, PCI_CB_PRIMARY_BUS, PCI_CB_CARD_BUS, PCI_CB_SUBORDINATE_BUS);
1275 printf("But it was filtered out.\n");
1283 do_map_bridges(int bus, int min, int max)
1285 struct bus_info *bi = bus_info + bus;
1286 struct bus_bridge *b;
1289 for(b=bi->bridges; b; b=b->next)
1291 if (bus_info[b->first].guestbook)
1293 else if (b->first < min || b->last > max)
1297 bus_info[b->first].via = b;
1298 do_map_bridges(b->first, b->first, b->last);
1308 printf("\nSummary of buses:\n\n");
1309 for(i=0; i<256; i++)
1310 if (bus_info[i].exists && !bus_info[i].guestbook)
1311 do_map_bridges(i, 0, 255);
1312 for(i=0; i<256; i++)
1314 struct bus_info *bi = bus_info + i;
1315 struct bus_bridge *b = bi->via;
1319 printf("%02x: ", i);
1321 printf("Entered via %02x:%02x.%d\n", b->this, b->dev, b->func);
1323 printf("Primary host bus\n");
1325 printf("Secondary host bus (?)\n");
1327 for(b=bi->bridges; b; b=b->next)
1329 printf("\t%02x.%d Bridge to %02x-%02x", b->dev, b->func, b->first, b->last);
1333 printf(" <overlap bug>");
1336 printf(" <crossing bug>");
1347 if (pacc->method == PCI_ACCESS_PROC_BUS_PCI ||
1348 pacc->method == PCI_ACCESS_DUMP)
1349 printf("WARNING: Bus mapping can be reliable only with direct hardware access enabled.\n\n");
1350 else if (!check_root())
1351 die("Only root can map the bus.");
1352 bus_info = xmalloc(sizeof(struct bus_info) * 256);
1353 bzero(bus_info, sizeof(struct bus_info) * 256);
1354 if (filter.bus >= 0)
1355 do_map_bus(filter.bus);
1359 for(bus=0; bus<256; bus++)
1368 main(int argc, char **argv)
1373 if (argc == 2 && !strcmp(argv[1], "--version"))
1375 puts("lspci version " PCIUTILS_VERSION);
1381 pci_filter_init(pacc, &filter);
1383 while ((i = getopt(argc, argv, options)) != -1)
1387 pacc->numeric_ids = 1;
1393 pacc->buscentric = 1;
1394 buscentric_view = 1;
1397 if (msg = pci_filter_parse_slot(&filter, optarg))
1401 if (msg = pci_filter_parse_id(&filter, optarg))
1411 pacc->id_file_name = optarg;
1420 if (parse_generic_option(i, pacc, optarg))
1423 fprintf(stderr, help_msg, pacc->id_file_name);