2 * $Id: lspci.c,v 1.22 1999/01/28 20:16:46 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_LONG_INT
60 #define LONG_FORMAT "%016lx"
62 #define LONG_FORMAT "%08lx"
65 /* Our view of the PCI bus */
70 unsigned int config_cnt;
74 static struct device *first_dev;
76 static struct device *
77 scan_device(struct pci_dev *p)
79 int how_much = (show_hex > 2) ? 256 : 64;
82 if (!pci_filter_match(&filter, p))
84 d = xmalloc(sizeof(struct device));
87 if (!pci_read_block(p, 0, d->config, how_much))
88 die("Unable to read %d bytes of configuration space.", how_much);
89 if (how_much < 128 && (d->config[PCI_HEADER_TYPE] & 0x7f) == PCI_HEADER_TYPE_CARDBUS)
91 /* For cardbus bridges, we need to fetch 64 bytes more to get the full standard header... */
92 if (!pci_read_block(p, 0, d->config+64, 64))
93 die("Unable to read cardbus bridge extension data.");
96 d->config_cnt = how_much;
97 pci_setup_cache(p, d->config, d->config_cnt);
98 pci_fill_info(p, PCI_FILL_IDENT | PCI_FILL_IRQ | PCI_FILL_BASES | PCI_FILL_ROM_BASE);
109 for(p=pacc->devices; p; p=p->next)
110 if (d = scan_device(p))
120 static int is_root = -1;
123 is_root = !geteuid();
128 config_fetch(struct device *d, unsigned int pos, unsigned int len)
130 if (pos + len < d->config_cnt)
132 if (pacc->method != PCI_ACCESS_DUMP && !check_root())
134 return pci_read_block(d->dev, pos, d->config + pos, len);
137 /* Config space accesses */
140 get_conf_byte(struct device *d, unsigned int pos)
142 return d->config[pos];
146 get_conf_word(struct device *d, unsigned int pos)
148 return d->config[pos] | (d->config[pos+1] << 8);
152 get_conf_long(struct device *d, unsigned int pos)
154 return d->config[pos] |
155 (d->config[pos+1] << 8) |
156 (d->config[pos+2] << 16) |
157 (d->config[pos+3] << 24);
163 compare_them(const void *A, const void *B)
165 const struct pci_dev *a = (*(const struct device **)A)->dev;
166 const struct pci_dev *b = (*(const struct device **)B)->dev;
176 if (a->func < b->func)
178 if (a->func > b->func)
186 struct device **index, **h, **last_dev;
191 for(d=first_dev; d; d=d->next)
193 h = index = alloca(sizeof(struct device *) * cnt);
194 for(d=first_dev; d; d=d->next)
196 qsort(index, cnt, sizeof(struct device *), compare_them);
197 last_dev = &first_dev;
202 last_dev = &(*h)->next;
210 #define FLAG(x,y) ((x & y) ? '+' : '-')
213 show_terse(struct device *d)
216 struct pci_dev *p = d->dev;
217 byte classbuf[128], devbuf[128];
219 printf("%02x:%02x.%x %s: %s",
223 pci_lookup_name(pacc, classbuf, sizeof(classbuf),
225 get_conf_word(d, PCI_CLASS_DEVICE), 0),
226 pci_lookup_name(pacc, devbuf, sizeof(devbuf),
227 PCI_LOOKUP_VENDOR | PCI_LOOKUP_DEVICE,
228 p->vendor_id, p->device_id));
229 if (c = get_conf_byte(d, PCI_REVISION_ID))
230 printf(" (rev %02x)", c);
231 if (verbose && (c = get_conf_byte(d, PCI_CLASS_PROG)))
232 printf(" (prog-if %02x)", c);
237 show_bases(struct device *d, int cnt)
239 struct pci_dev *p = d->dev;
240 word cmd = get_conf_word(d, PCI_COMMAND);
246 unsigned int flg = get_conf_long(d, PCI_BASE_ADDRESS_0 + 4*i);
247 pos = p->base_addr[i];
248 if (flg == 0xffffffff)
253 printf("\tRegion %d: ", i);
256 if (pos && !flg) /* Reported by the OS, but not by the device */
258 printf("[virtual] ");
261 if (flg & PCI_BASE_ADDRESS_SPACE_IO)
263 unsigned long a = pos & PCI_BASE_ADDRESS_IO_MASK;
264 printf("I/O ports at ");
267 else if (flg & PCI_BASE_ADDRESS_IO_MASK)
270 printf("<unassigned>");
271 if (!(cmd & PCI_COMMAND_IO))
272 printf(" [disabled]");
276 int t = flg & PCI_BASE_ADDRESS_MEM_TYPE_MASK;
277 unsigned long a = pos & PCI_BASE_ADDRESS_MEM_MASK;
281 printf("Memory at ");
282 if (t == PCI_BASE_ADDRESS_MEM_TYPE_64)
286 printf("<invalid-64bit-slot>\n");
292 z = get_conf_long(d, PCI_BASE_ADDRESS_0 + 4*i);
296 printf("%08x%08lx", z, a);
298 printf("<unassigned>");
306 printf(LONG_FORMAT, a);
308 printf(((flg & PCI_BASE_ADDRESS_MEM_MASK) || z) ? "<ignored>" : "<unassigned>");
310 printf(" (%s, %sprefetchable)",
311 (t == PCI_BASE_ADDRESS_MEM_TYPE_32) ? "32-bit" :
312 (t == PCI_BASE_ADDRESS_MEM_TYPE_64) ? "64-bit" :
313 (t == PCI_BASE_ADDRESS_MEM_TYPE_1M) ? "low-1M" : "type 3",
314 (flg & PCI_BASE_ADDRESS_MEM_PREFETCH) ? "" : "non-");
315 if (!(cmd & PCI_COMMAND_MEMORY))
316 printf(" [disabled]");
323 show_pm(struct device *d, int where, int cap)
327 printf("Power Management version %d\n", cap & PCI_PM_CAP_VER_MASK);
330 printf("\t\tFlags: PMEClk%c AuxPwr%c DSI%c D1%c D2%c PME%c\n",
331 FLAG(cap, PCI_PM_CAP_PME_CLOCK),
332 FLAG(cap, PCI_PM_CAP_AUX_POWER),
333 FLAG(cap, PCI_PM_CAP_DSI),
334 FLAG(cap, PCI_PM_CAP_D1),
335 FLAG(cap, PCI_PM_CAP_D2),
336 FLAG(cap, PCI_PM_CAP_PME));
337 config_fetch(d, where + PCI_PM_CTRL, PCI_PM_SIZEOF - PCI_PM_CTRL);
338 t = get_conf_word(d, where + PCI_PM_CTRL);
339 printf("\t\tStatus: D%d PME-Enable%c DSel=%x DScale=%x PME%c\n",
340 t & PCI_PM_CTRL_STATE_MASK,
341 FLAG(t, PCI_PM_CTRL_PME_ENABLE),
342 (t & PCI_PM_CTRL_DATA_SEL_MASK) >> 9,
343 (t & PCI_PM_CTRL_DATA_SCALE_MASK) >> 13,
344 FLAG(t, PCI_PM_CTRL_PME_STATUS));
348 show_agp(struct device *d, int where, int cap)
353 printf("AGP version %x.%x\n", cap/16, cap%16);
356 config_fetch(d, where + PCI_AGP_STATUS, PCI_AGP_SIZEOF - PCI_AGP_STATUS);
357 t = get_conf_long(d, where + PCI_AGP_STATUS);
358 printf("\t\tStatus: RQ=%d SBA%c 64bit%c FW%c Rate=%s%s%s\n",
359 (t & PCI_AGP_STATUS_RQ_MASK) >> 24U,
360 FLAG(t, PCI_AGP_STATUS_SBA),
361 FLAG(t, PCI_AGP_STATUS_64BIT),
362 FLAG(t, PCI_AGP_STATUS_FW),
363 (t & PCI_AGP_STATUS_RATE4) ? "4" : "",
364 (t & PCI_AGP_STATUS_RATE2) ? "2" : "",
365 (t & PCI_AGP_STATUS_RATE1) ? "1" : "");
366 printf("\t\tCommand: RQ=%d SBA%c AGP%c 64bit%c FW%c Rate=%s%s%s\n",
367 (t & PCI_AGP_COMMAND_RQ_MASK) >> 24U,
368 FLAG(t, PCI_AGP_COMMAND_SBA),
369 FLAG(t, PCI_AGP_COMMAND_AGP),
370 FLAG(t, PCI_AGP_COMMAND_64BIT),
371 FLAG(t, PCI_AGP_COMMAND_FW),
372 (t & PCI_AGP_COMMAND_RATE4) ? "4" : "",
373 (t & PCI_AGP_COMMAND_RATE2) ? "2" : "",
374 (t & PCI_AGP_COMMAND_RATE1) ? "1" : "");
378 show_htype0(struct device *d)
380 unsigned long rom = d->dev->rom_base_addr;
384 printf("\tExpansion ROM at %08lx%s\n", rom & PCI_ROM_ADDRESS_MASK,
385 (rom & PCI_ROM_ADDRESS_ENABLE) ? "" : " [disabled]");
386 if (get_conf_word(d, PCI_STATUS) & PCI_STATUS_CAP_LIST)
388 int where = get_conf_byte(d, PCI_CAPABILITY_LIST);
392 printf("\tCapabilities: ");
393 if (!config_fetch(d, where, 4))
395 puts("<available only to root>");
398 id = get_conf_byte(d, where + PCI_CAP_LIST_ID);
399 next = get_conf_byte(d, where + PCI_CAP_LIST_NEXT);
400 cap = get_conf_word(d, where + PCI_CAP_FLAGS);
401 printf("[%02x] ", where);
404 printf("<chain broken>\n");
410 show_pm(d, where, cap);
413 show_agp(d, where, cap);
416 printf("#%02x [%04x]", id, cap);
424 show_htype1(struct device *d)
426 struct pci_dev *p = d->dev;
427 u32 io_base = get_conf_byte(d, PCI_IO_BASE);
428 u32 io_limit = get_conf_byte(d, PCI_IO_LIMIT);
429 u32 io_type = io_base & PCI_IO_RANGE_TYPE_MASK;
430 u32 mem_base = get_conf_word(d, PCI_MEMORY_BASE);
431 u32 mem_limit = get_conf_word(d, PCI_MEMORY_LIMIT);
432 u32 mem_type = mem_base & PCI_MEMORY_RANGE_TYPE_MASK;
433 u32 pref_base = get_conf_word(d, PCI_PREF_MEMORY_BASE);
434 u32 pref_limit = get_conf_word(d, PCI_PREF_MEMORY_LIMIT);
435 u32 pref_type = pref_base & PCI_PREF_RANGE_TYPE_MASK;
436 unsigned long rom = p->rom_base_addr;
437 word brc = get_conf_word(d, PCI_BRIDGE_CONTROL);
440 printf("\tBus: primary=%02x, secondary=%02x, subordinate=%02x, sec-latency=%d\n",
441 get_conf_byte(d, PCI_PRIMARY_BUS),
442 get_conf_byte(d, PCI_SECONDARY_BUS),
443 get_conf_byte(d, PCI_SUBORDINATE_BUS),
444 get_conf_byte(d, PCI_SEC_LATENCY_TIMER));
446 if (io_type != (io_limit & PCI_IO_RANGE_TYPE_MASK) ||
447 (io_type != PCI_IO_RANGE_TYPE_16 && io_type != PCI_IO_RANGE_TYPE_32))
448 printf("\t!!! Unknown I/O range types %x/%x\n", io_base, io_limit);
451 io_base = (io_base & PCI_IO_RANGE_MASK) << 8;
452 io_limit = (io_limit & PCI_IO_RANGE_MASK) << 8;
453 if (io_type == PCI_IO_RANGE_TYPE_32)
455 io_base |= (get_conf_word(d, PCI_IO_BASE_UPPER16) << 16);
456 io_limit |= (get_conf_word(d, PCI_IO_LIMIT_UPPER16) << 16);
459 printf("\tI/O behind bridge: %08x-%08x\n", io_base, io_limit+0xfff);
462 if (mem_type != (mem_limit & PCI_MEMORY_RANGE_TYPE_MASK) ||
464 printf("\t!!! Unknown memory range types %x/%x\n", mem_base, mem_limit);
467 mem_base = (mem_base & PCI_MEMORY_RANGE_MASK) << 16;
468 mem_limit = (mem_limit & PCI_MEMORY_RANGE_MASK) << 16;
469 printf("\tMemory behind bridge: %08x-%08x\n", mem_base, mem_limit + 0xfffff);
472 if (pref_type != (pref_limit & PCI_PREF_RANGE_TYPE_MASK) ||
473 (pref_type != PCI_PREF_RANGE_TYPE_32 && pref_type != PCI_PREF_RANGE_TYPE_64))
474 printf("\t!!! Unknown prefetchable memory range types %x/%x\n", pref_base, pref_limit);
477 pref_base = (pref_base & PCI_PREF_RANGE_MASK) << 16;
478 pref_limit = (pref_limit & PCI_PREF_RANGE_MASK) << 16;
479 if (pref_type == PCI_PREF_RANGE_TYPE_32)
480 printf("\tPrefetchable memory behind bridge: %08x-%08x\n", pref_base, pref_limit + 0xfffff);
482 printf("\tPrefetchable memory behind bridge: %08x%08x-%08x%08x\n",
483 get_conf_long(d, PCI_PREF_BASE_UPPER32),
485 get_conf_long(d, PCI_PREF_LIMIT_UPPER32),
489 if (get_conf_word(d, PCI_SEC_STATUS) & PCI_STATUS_SIG_SYSTEM_ERROR)
490 printf("\tSecondary status: SERR\n");
493 printf("\tExpansion ROM at %08lx%s\n", rom & PCI_ROM_ADDRESS_MASK,
494 (rom & PCI_ROM_ADDRESS_ENABLE) ? "" : " [disabled]");
497 printf("\tBridgeCtl: Parity%c SERR%c NoISA%c VGA%c MAbort%c >Reset%c FastB2B%c\n",
498 FLAG(brc, PCI_BRIDGE_CTL_PARITY),
499 FLAG(brc, PCI_BRIDGE_CTL_SERR),
500 FLAG(brc, PCI_BRIDGE_CTL_NO_ISA),
501 FLAG(brc, PCI_BRIDGE_CTL_VGA),
502 FLAG(brc, PCI_BRIDGE_CTL_MASTER_ABORT),
503 FLAG(brc, PCI_BRIDGE_CTL_BUS_RESET),
504 FLAG(brc, PCI_BRIDGE_CTL_FAST_BACK));
508 show_htype2(struct device *d)
511 word cmd = get_conf_word(d, PCI_COMMAND);
512 word brc = get_conf_word(d, PCI_CB_BRIDGE_CONTROL);
513 word exca = get_conf_word(d, PCI_CB_LEGACY_MODE_BASE);
516 printf("\tBus: primary=%02x, secondary=%02x, subordinate=%02x, sec-latency=%d\n",
517 get_conf_byte(d, PCI_CB_PRIMARY_BUS),
518 get_conf_byte(d, PCI_CB_CARD_BUS),
519 get_conf_byte(d, PCI_CB_SUBORDINATE_BUS),
520 get_conf_byte(d, PCI_CB_LATENCY_TIMER));
524 u32 base = get_conf_long(d, PCI_CB_MEMORY_BASE_0 + p);
525 u32 limit = get_conf_long(d, PCI_CB_MEMORY_LIMIT_0 + p);
527 printf("Memory window %d: %08x-%08x%s%s\n", i, base, limit,
528 (cmd & PCI_COMMAND_MEMORY) ? "" : " [disabled]",
529 (brc & (PCI_CB_BRIDGE_CTL_PREFETCH_MEM0 << i)) ? " (prefetchable)" : "");
534 u32 base = get_conf_long(d, PCI_CB_IO_BASE_0 + p);
535 u32 limit = get_conf_long(d, PCI_CB_IO_LIMIT_0 + p);
536 if (!(base & PCI_IO_RANGE_TYPE_32))
541 base &= PCI_CB_IO_RANGE_MASK;
544 limit = (limit & PCI_CB_IO_RANGE_MASK) + 3;
545 printf("I/O window %d: %08x-%08x%s\n", i, base, limit,
546 (cmd & PCI_COMMAND_IO) ? "" : " [disabled]");
549 if (get_conf_word(d, PCI_CB_SEC_STATUS) & PCI_STATUS_SIG_SYSTEM_ERROR)
550 printf("\tSecondary status: SERR\n");
552 printf("\tBridgeCtl: Parity%c SERR%c ISA%c VGA%c MAbort%c >Reset%c 16bInt%c PostWrite%c\n",
553 FLAG(brc, PCI_CB_BRIDGE_CTL_PARITY),
554 FLAG(brc, PCI_CB_BRIDGE_CTL_SERR),
555 FLAG(brc, PCI_CB_BRIDGE_CTL_ISA),
556 FLAG(brc, PCI_CB_BRIDGE_CTL_VGA),
557 FLAG(brc, PCI_CB_BRIDGE_CTL_MASTER_ABORT),
558 FLAG(brc, PCI_CB_BRIDGE_CTL_CB_RESET),
559 FLAG(brc, PCI_CB_BRIDGE_CTL_16BIT_INT),
560 FLAG(brc, PCI_CB_BRIDGE_CTL_POST_WRITES));
562 printf("\t16-bit legacy interface ports at %04x\n", exca);
566 show_verbose(struct device *d)
568 struct pci_dev *p = d->dev;
569 word status = get_conf_word(d, PCI_STATUS);
570 word cmd = get_conf_word(d, PCI_COMMAND);
571 word class = get_conf_word(d, PCI_CLASS_DEVICE);
572 byte bist = get_conf_byte(d, PCI_BIST);
573 byte htype = get_conf_byte(d, PCI_HEADER_TYPE) & 0x7f;
574 byte latency = get_conf_byte(d, PCI_LATENCY_TIMER);
575 byte cache_line = get_conf_byte(d, PCI_CACHE_LINE_SIZE);
576 byte max_lat, min_gnt;
577 byte int_pin = get_conf_byte(d, PCI_INTERRUPT_PIN);
578 unsigned int irq = p->irq;
579 word subsys_v, subsys_d;
586 case PCI_HEADER_TYPE_NORMAL:
587 if (class == PCI_CLASS_BRIDGE_PCI)
590 printf("\t!!! Header type %02x doesn't match class code %04x\n", htype, class);
593 max_lat = get_conf_byte(d, PCI_MAX_LAT);
594 min_gnt = get_conf_byte(d, PCI_MIN_GNT);
595 subsys_v = get_conf_word(d, PCI_SUBSYSTEM_VENDOR_ID);
596 subsys_d = get_conf_word(d, PCI_SUBSYSTEM_ID);
598 case PCI_HEADER_TYPE_BRIDGE:
599 if (class != PCI_CLASS_BRIDGE_PCI)
601 irq = int_pin = min_gnt = max_lat = 0;
602 subsys_v = subsys_d = 0;
604 case PCI_HEADER_TYPE_CARDBUS:
605 if ((class >> 8) != PCI_BASE_CLASS_BRIDGE)
607 min_gnt = max_lat = 0;
608 subsys_v = get_conf_word(d, PCI_CB_SUBSYSTEM_VENDOR_ID);
609 subsys_d = get_conf_word(d, PCI_CB_SUBSYSTEM_ID);
612 printf("\t!!! Unknown header type %02x\n", htype);
616 if (verbose && subsys_v && subsys_v != 0xffff)
617 printf("\tSubsystem: %s\n",
618 pci_lookup_name(pacc, ssnamebuf, sizeof(ssnamebuf),
619 PCI_LOOKUP_SUBSYSTEM | PCI_LOOKUP_VENDOR | PCI_LOOKUP_DEVICE,
620 subsys_v, subsys_d));
624 printf("\tControl: I/O%c Mem%c BusMaster%c SpecCycle%c MemWINV%c VGASnoop%c ParErr%c Stepping%c SERR%c FastB2B%c\n",
625 FLAG(cmd, PCI_COMMAND_IO),
626 FLAG(cmd, PCI_COMMAND_MEMORY),
627 FLAG(cmd, PCI_COMMAND_MASTER),
628 FLAG(cmd, PCI_COMMAND_SPECIAL),
629 FLAG(cmd, PCI_COMMAND_INVALIDATE),
630 FLAG(cmd, PCI_COMMAND_VGA_PALETTE),
631 FLAG(cmd, PCI_COMMAND_PARITY),
632 FLAG(cmd, PCI_COMMAND_WAIT),
633 FLAG(cmd, PCI_COMMAND_SERR),
634 FLAG(cmd, PCI_COMMAND_FAST_BACK));
635 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",
636 FLAG(status, PCI_STATUS_CAP_LIST),
637 FLAG(status, PCI_STATUS_66MHZ),
638 FLAG(status, PCI_STATUS_UDF),
639 FLAG(status, PCI_STATUS_FAST_BACK),
640 FLAG(status, PCI_STATUS_PARITY),
641 ((status & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_SLOW) ? "slow" :
642 ((status & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_MEDIUM) ? "medium" :
643 ((status & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_FAST) ? "fast" : "??",
644 FLAG(status, PCI_STATUS_SIG_TARGET_ABORT),
645 FLAG(status, PCI_STATUS_REC_TARGET_ABORT),
646 FLAG(status, PCI_STATUS_REC_MASTER_ABORT),
647 FLAG(status, PCI_STATUS_SIG_SYSTEM_ERROR),
648 FLAG(status, PCI_STATUS_DETECTED_PARITY));
649 if (cmd & PCI_COMMAND_MASTER)
651 printf("\tLatency: ");
653 printf("%d min, ", min_gnt);
655 printf("%d max, ", max_lat);
656 printf("%d set", latency);
658 printf(", cache line size %02x", cache_line);
662 printf("\tInterrupt: pin %c routed to IRQ " IRQ_FORMAT "\n",
663 (int_pin ? 'A' + int_pin - 1 : '?'), irq);
668 if (cmd & PCI_COMMAND_MASTER)
669 printf("bus master, ");
670 if (cmd & PCI_COMMAND_VGA_PALETTE)
671 printf("VGA palette snoop, ");
672 if (cmd & PCI_COMMAND_WAIT)
673 printf("stepping, ");
674 if (cmd & PCI_COMMAND_FAST_BACK)
675 printf("fast Back2Back, ");
676 if (status & PCI_STATUS_66MHZ)
678 if (status & PCI_STATUS_UDF)
679 printf("user-definable features, ");
681 ((status & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_SLOW) ? "slow" :
682 ((status & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_MEDIUM) ? "medium" :
683 ((status & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_FAST) ? "fast" : "??");
684 if (cmd & PCI_COMMAND_MASTER)
685 printf(", latency %d", latency);
687 printf(", IRQ " IRQ_FORMAT, irq);
691 if (bist & PCI_BIST_CAPABLE)
693 if (bist & PCI_BIST_START)
694 printf("\tBIST is running\n");
696 printf("\tBIST result: %02x\n", bist & PCI_BIST_CODE_MASK);
701 case PCI_HEADER_TYPE_NORMAL:
704 case PCI_HEADER_TYPE_BRIDGE:
707 case PCI_HEADER_TYPE_CARDBUS:
714 show_hex_dump(struct device *d)
718 for(i=0; i<d->config_cnt; i++)
722 printf(" %02x", get_conf_byte(d, i));
729 show_machine(struct device *d)
731 struct pci_dev *p = d->dev;
733 word sv_id=0, sd_id=0;
734 char classbuf[128], vendbuf[128], devbuf[128], svbuf[128], sdbuf[128];
736 switch (get_conf_byte(d, PCI_HEADER_TYPE) & 0x7f)
738 case PCI_HEADER_TYPE_NORMAL:
739 sv_id = get_conf_word(d, PCI_SUBSYSTEM_VENDOR_ID);
740 sd_id = get_conf_word(d, PCI_SUBSYSTEM_ID);
742 case PCI_HEADER_TYPE_CARDBUS:
743 sv_id = get_conf_word(d, PCI_CB_SUBSYSTEM_VENDOR_ID);
744 sd_id = get_conf_word(d, PCI_CB_SUBSYSTEM_ID);
750 printf("Device:\t%02x:%02x.%x\n", p->bus, p->dev, p->func);
751 printf("Class:\t%s\n",
752 pci_lookup_name(pacc, classbuf, sizeof(classbuf), PCI_LOOKUP_CLASS, get_conf_word(d, PCI_CLASS_DEVICE), 0));
753 printf("Vendor:\t%s\n",
754 pci_lookup_name(pacc, vendbuf, sizeof(vendbuf), PCI_LOOKUP_VENDOR, p->vendor_id, p->device_id));
755 printf("Device:\t%s\n",
756 pci_lookup_name(pacc, devbuf, sizeof(devbuf), PCI_LOOKUP_DEVICE, p->vendor_id, p->device_id));
757 if (sv_id && sv_id != 0xffff)
759 printf("SVendor:\t%s\n",
760 pci_lookup_name(pacc, svbuf, sizeof(svbuf), PCI_LOOKUP_SUBSYSTEM | PCI_LOOKUP_VENDOR, sv_id, sd_id));
761 printf("SDevice:\t%s\n",
762 pci_lookup_name(pacc, sdbuf, sizeof(sdbuf), PCI_LOOKUP_SUBSYSTEM | PCI_LOOKUP_DEVICE, sv_id, sd_id));
764 if (c = get_conf_byte(d, PCI_REVISION_ID))
765 printf("Rev:\t%02x\n", c);
766 if (c = get_conf_byte(d, PCI_CLASS_PROG))
767 printf("ProgIf:\t%02x\n", c);
771 printf("%02x:%02x.%x ", p->bus, p->dev, p->func);
772 printf("\"%s\" \"%s\" \"%s\"",
773 pci_lookup_name(pacc, classbuf, sizeof(classbuf), PCI_LOOKUP_CLASS,
774 get_conf_word(d, PCI_CLASS_DEVICE), 0),
775 pci_lookup_name(pacc, vendbuf, sizeof(vendbuf), PCI_LOOKUP_VENDOR,
776 p->vendor_id, p->device_id),
777 pci_lookup_name(pacc, devbuf, sizeof(devbuf), PCI_LOOKUP_DEVICE,
778 p->vendor_id, p->device_id));
779 if (c = get_conf_byte(d, PCI_REVISION_ID))
780 printf(" -r%02x", c);
781 if (c = get_conf_byte(d, PCI_CLASS_PROG))
782 printf(" -p%02x", c);
783 if (sv_id && sv_id != 0xffff)
784 printf(" \"%s\" \"%s\"",
785 pci_lookup_name(pacc, svbuf, sizeof(svbuf), PCI_LOOKUP_SUBSYSTEM | PCI_LOOKUP_VENDOR, sv_id, sd_id),
786 pci_lookup_name(pacc, sdbuf, sizeof(sdbuf), PCI_LOOKUP_SUBSYSTEM | PCI_LOOKUP_DEVICE, sv_id, sd_id));
788 printf(" \"\" \"\"");
794 show_device(struct device *d)
796 if (machine_readable)
804 if (verbose || show_hex)
813 for(d=first_dev; d; d=d->next)
820 struct bridge *chain; /* Single-linked list of bridges */
821 struct bridge *next, *child; /* Tree of bridges */
822 struct bus *first_bus; /* List of busses connected to this bridge */
823 unsigned int primary, secondary, subordinate; /* Bus numbers */
824 struct device *br_dev;
830 struct device *first_dev, **last_dev;
833 static struct bridge host_bridge = { NULL, NULL, NULL, NULL, ~0, 0, ~0, NULL };
836 find_bus(struct bridge *b, unsigned int n)
840 for(bus=b->first_bus; bus; bus=bus->sibling)
841 if (bus->number == n)
847 new_bus(struct bridge *b, unsigned int n)
849 struct bus *bus = xmalloc(sizeof(struct bus));
851 bus = xmalloc(sizeof(struct bus));
853 bus->sibling = b->first_bus;
854 bus->first_dev = NULL;
855 bus->last_dev = &bus->first_dev;
861 insert_dev(struct device *d, struct bridge *b)
863 struct pci_dev *p = d->dev;
866 if (! (bus = find_bus(b, p->bus)))
869 for(c=b->child; c; c=c->next)
870 if (c->secondary <= p->bus && p->bus <= c->subordinate)
871 return insert_dev(d, c);
872 bus = new_bus(b, p->bus);
874 /* Simple insertion at the end _does_ guarantee the correct order as the
875 * original device list was sorted by (bus, devfn) lexicographically
876 * and all devices on the new list have the same bus number.
879 bus->last_dev = &d->next;
886 struct device *d, *d2;
887 struct bridge **last_br, *b;
889 /* Build list of bridges */
891 last_br = &host_bridge.chain;
892 for(d=first_dev; d; d=d->next)
894 word class = get_conf_word(d, PCI_CLASS_DEVICE);
895 byte ht = get_conf_byte(d, PCI_HEADER_TYPE) & 0x7f;
896 if (class == PCI_CLASS_BRIDGE_PCI &&
897 (ht == PCI_HEADER_TYPE_BRIDGE || ht == PCI_HEADER_TYPE_CARDBUS))
899 b = xmalloc(sizeof(struct bridge));
900 if (ht == PCI_HEADER_TYPE_BRIDGE)
902 b->primary = get_conf_byte(d, PCI_CB_PRIMARY_BUS);
903 b->secondary = get_conf_byte(d, PCI_CB_CARD_BUS);
904 b->subordinate = get_conf_byte(d, PCI_CB_SUBORDINATE_BUS);
908 b->primary = get_conf_byte(d, PCI_PRIMARY_BUS);
909 b->secondary = get_conf_byte(d, PCI_SECONDARY_BUS);
910 b->subordinate = get_conf_byte(d, PCI_SUBORDINATE_BUS);
914 b->next = b->child = NULL;
921 /* Create a bridge tree */
923 for(b=&host_bridge; b; b=b->chain)
925 struct bridge *c, *best;
927 for(c=&host_bridge; c; c=c->chain)
928 if (c != b && b->primary >= c->secondary && b->primary <= c->subordinate &&
929 (!best || best->subordinate - best->primary > c->subordinate - c->primary))
933 b->next = best->child;
938 /* Insert secondary bus for each bridge */
940 for(b=&host_bridge; b; b=b->chain)
941 if (!find_bus(b, b->secondary))
942 new_bus(b, b->secondary);
944 /* Create bus structs and link devices */
949 insert_dev(d, &host_bridge);
955 print_it(byte *line, byte *p)
961 if (*p == '+' || *p == '|')
967 static void show_tree_bridge(struct bridge *, byte *, byte *);
970 show_tree_dev(struct device *d, byte *line, byte *p)
972 struct pci_dev *q = d->dev;
976 p += sprintf(p, "%02x.%x", q->dev, q->func);
977 for(b=&host_bridge; b; b=b->chain)
980 if (b->secondary == b->subordinate)
981 p += sprintf(p, "-[%02x]-", b->secondary);
983 p += sprintf(p, "-[%02x-%02x]-", b->secondary, b->subordinate);
984 show_tree_bridge(b, line, p);
988 p += sprintf(p, " %s",
989 pci_lookup_name(pacc, namebuf, sizeof(namebuf),
990 PCI_LOOKUP_VENDOR | PCI_LOOKUP_DEVICE,
991 q->vendor_id, q->device_id));
996 show_tree_bus(struct bus *b, byte *line, byte *p)
1000 else if (!b->first_dev->next)
1004 show_tree_dev(b->first_dev, line, p);
1008 struct device *d = b->first_dev;
1013 show_tree_dev(d, line, p+2);
1018 show_tree_dev(d, line, p+2);
1023 show_tree_bridge(struct bridge *b, byte *line, byte *p)
1026 if (!b->first_bus->sibling)
1028 if (b == &host_bridge)
1029 p += sprintf(p, "[%02x]-", b->first_bus->number);
1030 show_tree_bus(b->first_bus, line, p);
1034 struct bus *u = b->first_bus;
1039 k = p + sprintf(p, "+-[%02x]-", u->number);
1040 show_tree_bus(u, line, k);
1043 k = p + sprintf(p, "\\-[%02x]-", u->number);
1044 show_tree_bus(u, line, k);
1054 show_tree_bridge(&host_bridge, line, line);
1057 /* Bus mapping mode */
1060 struct bus_bridge *next;
1061 byte this, dev, func, first, last, bug;
1067 struct bus_bridge *bridges, *via;
1070 static struct bus_info *bus_info;
1073 map_bridge(struct bus_info *bi, struct device *d, int np, int ns, int nl)
1075 struct bus_bridge *b = xmalloc(sizeof(struct bus_bridge));
1076 struct pci_dev *p = d->dev;
1078 b->next = bi->bridges;
1080 b->this = get_conf_byte(d, np);
1083 b->first = get_conf_byte(d, ns);
1084 b->last = get_conf_byte(d, nl);
1085 printf("## %02x.%02x:%d is a bridge from %02x to %02x-%02x\n",
1086 p->bus, p->dev, p->func, b->this, b->first, b->last);
1087 if (b->this != p->bus)
1088 printf("!!! Bridge points to invalid primary bus.\n");
1089 if (b->first > b->last)
1091 printf("!!! Bridge points to invalid bus range.\n");
1100 int verbose = pacc->debugging;
1101 struct bus_info *bi = bus_info + bus;
1105 printf("Mapping bus %02x\n", bus);
1106 for(dev = 0; dev < 32; dev++)
1107 if (filter.slot < 0 || filter.slot == dev)
1109 for(func = 0; func < 8; func++)
1110 if (filter.func < 0 || filter.func == func)
1112 struct pci_dev *p = pci_get_dev(pacc, bus, dev, func);
1113 u16 vendor = pci_read_word(p, PCI_VENDOR_ID);
1114 if (vendor && vendor != 0xffff)
1117 printf("Discovered device %02x:%02x.%d\n", bus, dev, func);
1119 if (d = scan_device(p))
1122 switch (get_conf_byte(d, PCI_HEADER_TYPE) & 0x7f)
1124 case PCI_HEADER_TYPE_BRIDGE:
1125 map_bridge(bi, d, PCI_PRIMARY_BUS, PCI_SECONDARY_BUS, PCI_SUBORDINATE_BUS);
1127 case PCI_HEADER_TYPE_CARDBUS:
1128 map_bridge(bi, d, PCI_CB_PRIMARY_BUS, PCI_CB_CARD_BUS, PCI_CB_SUBORDINATE_BUS);
1134 printf("But it was filtered out.\n");
1142 do_map_bridges(int bus, int min, int max)
1144 struct bus_info *bi = bus_info + bus;
1145 struct bus_bridge *b;
1148 for(b=bi->bridges; b; b=b->next)
1150 if (bus_info[b->first].guestbook)
1152 else if (b->first < min || b->last > max)
1156 bus_info[b->first].via = b;
1157 do_map_bridges(b->first, b->first, b->last);
1167 printf("\nSummary of buses:\n\n");
1168 for(i=0; i<256; i++)
1169 if (bus_info[i].exists && !bus_info[i].guestbook)
1170 do_map_bridges(i, 0, 255);
1171 for(i=0; i<256; i++)
1173 struct bus_info *bi = bus_info + i;
1174 struct bus_bridge *b = bi->via;
1178 printf("%02x: ", i);
1180 printf("Entered via %02x:%02x.%d\n", b->this, b->dev, b->func);
1182 printf("Primary host bus\n");
1184 printf("Secondary host bus (?)\n");
1186 for(b=bi->bridges; b; b=b->next)
1188 printf("\t%02x.%d Bridge to %02x-%02x", b->dev, b->func, b->first, b->last);
1192 printf(" <overlap bug>");
1195 printf(" <crossing bug>");
1206 if (pacc->method == PCI_ACCESS_PROC_BUS_PCI ||
1207 pacc->method == PCI_ACCESS_DUMP)
1208 printf("WARNING: Bus mapping can be reliable only with direct hardware access enabled.\n\n");
1209 else if (!check_root())
1210 die("Only root can map the bus.");
1211 bus_info = xmalloc(sizeof(struct bus_info) * 256);
1212 bzero(bus_info, sizeof(struct bus_info) * 256);
1213 if (filter.bus >= 0)
1214 do_map_bus(filter.bus);
1218 for(bus=0; bus<256; bus++)
1227 main(int argc, char **argv)
1232 if (argc == 2 && !strcmp(argv[1], "--version"))
1234 puts("lspci version " PCIUTILS_VERSION);
1240 pci_filter_init(pacc, &filter);
1242 while ((i = getopt(argc, argv, options)) != -1)
1246 pacc->numeric_ids = 1;
1252 pacc->buscentric = 1;
1253 buscentric_view = 1;
1256 if (msg = pci_filter_parse_slot(&filter, optarg))
1260 if (msg = pci_filter_parse_id(&filter, optarg))
1270 pacc->id_file_name = optarg;
1279 if (parse_generic_option(i, pacc, optarg))
1282 fprintf(stderr, help_msg, pacc->id_file_name);