1/* 2 * Copyright 1996 Massachusetts Institute of Technology 3 * 4 * Permission to use, copy, modify, and distribute this software and 5 * its documentation for any purpose and without fee is hereby 6 * granted, provided that both the above copyright notice and this 7 * permission notice appear in all copies, that both the above 8 * copyright notice and this permission notice appear in all 9 * supporting documentation, and that the name of M.I.T. not be used 10 * in advertising or publicity pertaining to distribution of the 11 * software without specific, written prior permission. M.I.T. makes 12 * no representations about the suitability of this software for any 13 * purpose. It is provided "as is" without express or implied 14 * warranty. 15 * 16 * THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''. M.I.T. DISCLAIMS 17 * ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE, 18 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 19 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT 20 * SHALL M.I.T. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 23 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 25 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 26 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30#ifndef lint 31static const char rcsid[] = 32 "$FreeBSD$"; 33#endif /* not lint */ 34 35#include <sys/types.h> 36#include <sys/fcntl.h> 37#include <sys/mman.h> 38#include <sys/pciio.h> 39#include <sys/queue.h> 40 41#include <vm/vm.h> 42 43#include <dev/pci/pcireg.h> 44 45#include <assert.h> 46#include <ctype.h> 47#include <err.h> 48#include <inttypes.h> 49#include <stdbool.h> 50#include <stdlib.h> 51#include <stdio.h> 52#include <string.h> 53#include <unistd.h> 54 55#include "pathnames.h" 56#include "pciconf.h" 57 58struct pci_device_info 59{ 60 TAILQ_ENTRY(pci_device_info) link; 61 int id; 62 char *desc; 63}; 64 65struct pci_vendor_info 66{ 67 TAILQ_ENTRY(pci_vendor_info) link; 68 TAILQ_HEAD(,pci_device_info) devs; 69 int id; 70 char *desc; 71}; 72 73static TAILQ_HEAD(,pci_vendor_info) pci_vendors; 74 75static struct pcisel getsel(const char *str); 76static void list_bridge(int fd, struct pci_conf *p); 77static void list_bars(int fd, struct pci_conf *p); 78static void list_devs(const char *name, int verbose, int bars, int bridge, 79 int caps, int errors, int vpd, int listmode); 80static void list_verbose(struct pci_conf *p); 81static void list_vpd(int fd, struct pci_conf *p); 82static const char *guess_class(struct pci_conf *p); 83static const char *guess_subclass(struct pci_conf *p); 84static int load_vendors(void); 85static void readit(const char *, const char *, int); 86static void writeit(const char *, const char *, const char *, int); 87static void chkattached(const char *); 88static void dump_bar(const char *name, const char *reg, const char *bar_start, 89 const char *bar_count, int width, int verbose); 90 91static int exitstatus = 0; 92 93static void 94usage(void) 95{ 96 97 fprintf(stderr, "%s", 98 "usage: pciconf -l [-BbcevV] [device]\n" 99 " pciconf -a device\n" 100 " pciconf -r [-b | -h] device addr[:addr2]\n" 101 " pciconf -w [-b | -h] device addr value\n" 102 " pciconf -D [-b | -h | -x] device bar [start [count]]" 103 "\n"); 104 exit(1); 105} 106 107int 108main(int argc, char **argv) 109{ 110 int c, width; 111 int listmode, readmode, writemode, attachedmode, dumpbarmode; 112 int bars, bridge, caps, errors, verbose, vpd; 113 114 listmode = readmode = writemode = attachedmode = dumpbarmode = 0; 115 bars = bridge = caps = errors = verbose = vpd= 0; 116 width = 4; 117 118 while ((c = getopt(argc, argv, "aBbcDehlrwVv")) != -1) { 119 switch(c) { 120 case 'a': 121 attachedmode = 1; 122 break; 123 124 case 'B': 125 bridge = 1; 126 break; 127 128 case 'b': 129 bars = 1; 130 width = 1; 131 break; 132 133 case 'c': 134 caps++; 135 break; 136 137 case 'D': 138 dumpbarmode = 1; 139 break; 140 141 case 'e': 142 errors = 1; 143 break; 144 145 case 'h': 146 width = 2; 147 break; 148 149 case 'l': 150 listmode++; 151 break; 152 153 case 'r': 154 readmode = 1; 155 break; 156 157 case 'w': 158 writemode = 1; 159 break; 160 161 case 'v': 162 verbose = 1; 163 break; 164 165 case 'V': 166 vpd = 1; 167 break; 168 169 case 'x': 170 width = 8; 171 break; 172 173 default: 174 usage(); 175 } 176 } 177 178 if ((listmode && optind >= argc + 1) 179 || (writemode && optind + 3 != argc) 180 || (readmode && optind + 2 != argc) 181 || (attachedmode && optind + 1 != argc) 182 || (dumpbarmode && (optind + 2 > argc || optind + 4 < argc)) 183 || (width == 8 && !dumpbarmode)) 184 usage(); 185 186 if (listmode) { 187 list_devs(optind + 1 == argc ? argv[optind] : NULL, verbose, 188 bars, bridge, caps, errors, vpd, listmode); 189 } else if (attachedmode) { 190 chkattached(argv[optind]); 191 } else if (readmode) { 192 readit(argv[optind], argv[optind + 1], width); 193 } else if (writemode) { 194 writeit(argv[optind], argv[optind + 1], argv[optind + 2], 195 width); 196 } else if (dumpbarmode) { 197 dump_bar(argv[optind], argv[optind + 1], 198 optind + 2 < argc ? argv[optind + 2] : NULL, 199 optind + 3 < argc ? argv[optind + 3] : NULL, 200 width, verbose); 201 } else { 202 usage(); 203 } 204 205 return (exitstatus); 206} 207 208static void 209list_devs(const char *name, int verbose, int bars, int bridge, int caps, 210 int errors, int vpd, int listmode) 211{ 212 int fd; 213 struct pci_conf_io pc; 214 struct pci_conf conf[255], *p; 215 struct pci_match_conf patterns[1]; 216 int none_count = 0; 217 218 if (verbose) 219 load_vendors(); 220 221 fd = open(_PATH_DEVPCI, (bridge || caps || errors) ? O_RDWR : O_RDONLY, 222 0); 223 if (fd < 0) 224 err(1, "%s", _PATH_DEVPCI); 225 226 bzero(&pc, sizeof(struct pci_conf_io)); 227 pc.match_buf_len = sizeof(conf); 228 pc.matches = conf; 229 if (name != NULL) { 230 bzero(&patterns, sizeof(patterns)); 231 patterns[0].pc_sel = getsel(name); 232 patterns[0].flags = PCI_GETCONF_MATCH_DOMAIN | 233 PCI_GETCONF_MATCH_BUS | PCI_GETCONF_MATCH_DEV | 234 PCI_GETCONF_MATCH_FUNC; 235 pc.num_patterns = 1; 236 pc.pat_buf_len = sizeof(patterns); 237 pc.patterns = patterns; 238 } 239 240 do { 241 if (ioctl(fd, PCIOCGETCONF, &pc) == -1) 242 err(1, "ioctl(PCIOCGETCONF)"); 243 244 /* 245 * 255 entries should be more than enough for most people, 246 * but if someone has more devices, and then changes things 247 * around between ioctls, we'll do the cheesy thing and 248 * just bail. The alternative would be to go back to the 249 * beginning of the list, and print things twice, which may 250 * not be desirable. 251 */ 252 if (pc.status == PCI_GETCONF_LIST_CHANGED) { 253 warnx("PCI device list changed, please try again"); 254 exitstatus = 1; 255 close(fd); 256 return; 257 } else if (pc.status == PCI_GETCONF_ERROR) { 258 warnx("error returned from PCIOCGETCONF ioctl"); 259 exitstatus = 1; 260 close(fd); 261 return; 262 } 263 if (listmode == 2) 264 printf("drv\tselector\tclass rev hdr " 265 "vendor device subven subdev\n"); 266 for (p = conf; p < &conf[pc.num_matches]; p++) { 267 if (listmode == 2) 268 printf("%s%d@pci%d:%d:%d:%d:" 269 "\t%06x %02x %02x " 270 "%04x %04x %04x %04x\n", 271 *p->pd_name ? p->pd_name : "none", 272 *p->pd_name ? (int)p->pd_unit : 273 none_count++, p->pc_sel.pc_domain, 274 p->pc_sel.pc_bus, p->pc_sel.pc_dev, 275 p->pc_sel.pc_func, (p->pc_class << 16) | 276 (p->pc_subclass << 8) | p->pc_progif, 277 p->pc_revid, p->pc_hdr, 278 p->pc_vendor, p->pc_device, 279 p->pc_subvendor, p->pc_subdevice); 280 else 281 printf("%s%d@pci%d:%d:%d:%d:" 282 "\tclass=0x%06x rev=0x%02x hdr=0x%02x " 283 "vendor=0x%04x device=0x%04x " 284 "subvendor=0x%04x subdevice=0x%04x\n", 285 *p->pd_name ? p->pd_name : "none", 286 *p->pd_name ? (int)p->pd_unit : 287 none_count++, p->pc_sel.pc_domain, 288 p->pc_sel.pc_bus, p->pc_sel.pc_dev, 289 p->pc_sel.pc_func, (p->pc_class << 16) | 290 (p->pc_subclass << 8) | p->pc_progif, 291 p->pc_revid, p->pc_hdr, 292 p->pc_vendor, p->pc_device, 293 p->pc_subvendor, p->pc_subdevice); 294 if (verbose) 295 list_verbose(p); 296 if (bars) 297 list_bars(fd, p); 298 if (bridge) 299 list_bridge(fd, p); 300 if (caps) 301 list_caps(fd, p, caps); 302 if (errors) 303 list_errors(fd, p); 304 if (vpd) 305 list_vpd(fd, p); 306 } 307 } while (pc.status == PCI_GETCONF_MORE_DEVS); 308 309 close(fd); 310} 311 312static void 313print_bus_range(int fd, struct pci_conf *p, int secreg, int subreg) 314{ 315 uint8_t secbus, subbus; 316 317 secbus = read_config(fd, &p->pc_sel, secreg, 1); 318 subbus = read_config(fd, &p->pc_sel, subreg, 1); 319 printf(" bus range = %u-%u\n", secbus, subbus); 320} 321 322static void 323print_window(int reg, const char *type, int range, uint64_t base, 324 uint64_t limit) 325{ 326 327 printf(" window[%02x] = type %s, range %2d, addr %#jx-%#jx, %s\n", 328 reg, type, range, (uintmax_t)base, (uintmax_t)limit, 329 base < limit ? "enabled" : "disabled"); 330} 331 332static void 333print_special_decode(bool isa, bool vga, bool subtractive) 334{ 335 bool comma; 336 337 if (isa || vga || subtractive) { 338 comma = false; 339 printf(" decode = "); 340 if (isa) { 341 printf("ISA"); 342 comma = true; 343 } 344 if (vga) { 345 printf("%sVGA", comma ? ", " : ""); 346 comma = true; 347 } 348 if (subtractive) 349 printf("%ssubtractive", comma ? ", " : ""); 350 printf("\n"); 351 } 352} 353 354static void 355print_bridge_windows(int fd, struct pci_conf *p) 356{ 357 uint64_t base, limit; 358 uint32_t val; 359 uint16_t bctl; 360 bool subtractive; 361 int range; 362 363 /* 364 * XXX: This assumes that a window with a base and limit of 0 365 * is not implemented. In theory a window might be programmed 366 * at the smallest size with a base of 0, but those do not seem 367 * common in practice. 368 */ 369 val = read_config(fd, &p->pc_sel, PCIR_IOBASEL_1, 1); 370 if (val != 0 || read_config(fd, &p->pc_sel, PCIR_IOLIMITL_1, 1) != 0) { 371 if ((val & PCIM_BRIO_MASK) == PCIM_BRIO_32) { 372 base = PCI_PPBIOBASE( 373 read_config(fd, &p->pc_sel, PCIR_IOBASEH_1, 2), 374 val); 375 limit = PCI_PPBIOLIMIT( 376 read_config(fd, &p->pc_sel, PCIR_IOLIMITH_1, 2), 377 read_config(fd, &p->pc_sel, PCIR_IOLIMITL_1, 1)); 378 range = 32; 379 } else { 380 base = PCI_PPBIOBASE(0, val); 381 limit = PCI_PPBIOLIMIT(0, 382 read_config(fd, &p->pc_sel, PCIR_IOLIMITL_1, 1)); 383 range = 16; 384 } 385 print_window(PCIR_IOBASEL_1, "I/O Port", range, base, limit); 386 } 387 388 base = PCI_PPBMEMBASE(0, 389 read_config(fd, &p->pc_sel, PCIR_MEMBASE_1, 2)); 390 limit = PCI_PPBMEMLIMIT(0, 391 read_config(fd, &p->pc_sel, PCIR_MEMLIMIT_1, 2)); 392 print_window(PCIR_MEMBASE_1, "Memory", 32, base, limit); 393 394 val = read_config(fd, &p->pc_sel, PCIR_PMBASEL_1, 2); 395 if (val != 0 || read_config(fd, &p->pc_sel, PCIR_PMLIMITL_1, 2) != 0) { 396 if ((val & PCIM_BRPM_MASK) == PCIM_BRPM_64) { 397 base = PCI_PPBMEMBASE( 398 read_config(fd, &p->pc_sel, PCIR_PMBASEH_1, 4), 399 val); 400 limit = PCI_PPBMEMLIMIT( 401 read_config(fd, &p->pc_sel, PCIR_PMLIMITH_1, 4), 402 read_config(fd, &p->pc_sel, PCIR_PMLIMITL_1, 2)); 403 range = 64; 404 } else { 405 base = PCI_PPBMEMBASE(0, val); 406 limit = PCI_PPBMEMLIMIT(0, 407 read_config(fd, &p->pc_sel, PCIR_PMLIMITL_1, 2)); 408 range = 32; 409 } 410 print_window(PCIR_PMBASEL_1, "Prefetchable Memory", range, base, 411 limit); 412 } 413 414 /* 415 * XXX: This list of bridges that are subtractive but do not set 416 * progif to indicate it is copied from pci_pci.c. 417 */ 418 subtractive = p->pc_progif == PCIP_BRIDGE_PCI_SUBTRACTIVE; 419 switch (p->pc_device << 16 | p->pc_vendor) { 420 case 0xa002177d: /* Cavium ThunderX */ 421 case 0x124b8086: /* Intel 82380FB Mobile */ 422 case 0x060513d7: /* Toshiba ???? */ 423 subtractive = true; 424 } 425 if (p->pc_vendor == 0x8086 && (p->pc_device & 0xff00) == 0x2400) 426 subtractive = true; 427 428 bctl = read_config(fd, &p->pc_sel, PCIR_BRIDGECTL_1, 2); 429 print_special_decode(bctl & PCIB_BCR_ISA_ENABLE, 430 bctl & PCIB_BCR_VGA_ENABLE, subtractive); 431} 432 433static void 434print_cardbus_mem_window(int fd, struct pci_conf *p, int basereg, int limitreg, 435 bool prefetch) 436{ 437 438 print_window(basereg, prefetch ? "Prefetchable Memory" : "Memory", 32, 439 PCI_CBBMEMBASE(read_config(fd, &p->pc_sel, basereg, 4)), 440 PCI_CBBMEMLIMIT(read_config(fd, &p->pc_sel, limitreg, 4))); 441} 442 443static void 444print_cardbus_io_window(int fd, struct pci_conf *p, int basereg, int limitreg) 445{ 446 uint32_t base, limit; 447 uint32_t val; 448 int range; 449 450 val = read_config(fd, &p->pc_sel, basereg, 2); 451 if ((val & PCIM_CBBIO_MASK) == PCIM_CBBIO_32) { 452 base = PCI_CBBIOBASE(read_config(fd, &p->pc_sel, basereg, 4)); 453 limit = PCI_CBBIOBASE(read_config(fd, &p->pc_sel, limitreg, 4)); 454 range = 32; 455 } else { 456 base = PCI_CBBIOBASE(val); 457 limit = PCI_CBBIOBASE(read_config(fd, &p->pc_sel, limitreg, 2)); 458 range = 16; 459 } 460 print_window(basereg, "I/O Port", range, base, limit); 461} 462 463static void 464print_cardbus_windows(int fd, struct pci_conf *p) 465{ 466 uint16_t bctl; 467 468 bctl = read_config(fd, &p->pc_sel, PCIR_BRIDGECTL_2, 2); 469 print_cardbus_mem_window(fd, p, PCIR_MEMBASE0_2, PCIR_MEMLIMIT0_2, 470 bctl & CBB_BCR_PREFETCH_0_ENABLE); 471 print_cardbus_mem_window(fd, p, PCIR_MEMBASE1_2, PCIR_MEMLIMIT1_2, 472 bctl & CBB_BCR_PREFETCH_1_ENABLE); 473 print_cardbus_io_window(fd, p, PCIR_IOBASE0_2, PCIR_IOLIMIT0_2); 474 print_cardbus_io_window(fd, p, PCIR_IOBASE1_2, PCIR_IOLIMIT1_2); 475 print_special_decode(bctl & CBB_BCR_ISA_ENABLE, 476 bctl & CBB_BCR_VGA_ENABLE, false); 477} 478 479static void 480list_bridge(int fd, struct pci_conf *p) 481{ 482 483 switch (p->pc_hdr & PCIM_HDRTYPE) { 484 case PCIM_HDRTYPE_BRIDGE: 485 print_bus_range(fd, p, PCIR_SECBUS_1, PCIR_SUBBUS_1); 486 print_bridge_windows(fd, p); 487 break; 488 case PCIM_HDRTYPE_CARDBUS: 489 print_bus_range(fd, p, PCIR_SECBUS_2, PCIR_SUBBUS_2); 490 print_cardbus_windows(fd, p); 491 break; 492 } 493} 494 495static void 496list_bars(int fd, struct pci_conf *p) 497{ 498 int i, max; 499 500 switch (p->pc_hdr & PCIM_HDRTYPE) { 501 case PCIM_HDRTYPE_NORMAL: 502 max = PCIR_MAX_BAR_0; 503 break; 504 case PCIM_HDRTYPE_BRIDGE: 505 max = PCIR_MAX_BAR_1; 506 break; 507 case PCIM_HDRTYPE_CARDBUS: 508 max = PCIR_MAX_BAR_2; 509 break; 510 default: 511 return; 512 } 513 514 for (i = 0; i <= max; i++) 515 print_bar(fd, p, "bar ", PCIR_BAR(i)); 516} 517 518void 519print_bar(int fd, struct pci_conf *p, const char *label, uint16_t bar_offset) 520{ 521 uint64_t base; 522 const char *type; 523 struct pci_bar_io bar; 524 int range; 525 526 bar.pbi_sel = p->pc_sel; 527 bar.pbi_reg = bar_offset; 528 if (ioctl(fd, PCIOCGETBAR, &bar) < 0) 529 return; 530 if (PCI_BAR_IO(bar.pbi_base)) { 531 type = "I/O Port"; 532 range = 32; 533 base = bar.pbi_base & PCIM_BAR_IO_BASE; 534 } else { 535 if (bar.pbi_base & PCIM_BAR_MEM_PREFETCH) 536 type = "Prefetchable Memory"; 537 else 538 type = "Memory"; 539 switch (bar.pbi_base & PCIM_BAR_MEM_TYPE) { 540 case PCIM_BAR_MEM_32: 541 range = 32; 542 break; 543 case PCIM_BAR_MEM_1MB: 544 range = 20; 545 break; 546 case PCIM_BAR_MEM_64: 547 range = 64; 548 break; 549 default: 550 range = -1; 551 } 552 base = bar.pbi_base & ~((uint64_t)0xf); 553 } 554 printf(" %s[%02x] = type %s, range %2d, base %#jx, ", 555 label, bar_offset, type, range, (uintmax_t)base); 556 printf("size %ju, %s\n", (uintmax_t)bar.pbi_length, 557 bar.pbi_enabled ? "enabled" : "disabled"); 558} 559 560static void 561list_verbose(struct pci_conf *p) 562{ 563 struct pci_vendor_info *vi; 564 struct pci_device_info *di; 565 const char *dp; 566 567 TAILQ_FOREACH(vi, &pci_vendors, link) { 568 if (vi->id == p->pc_vendor) { 569 printf(" vendor = '%s'\n", vi->desc); 570 break; 571 } 572 } 573 if (vi == NULL) { 574 di = NULL; 575 } else { 576 TAILQ_FOREACH(di, &vi->devs, link) { 577 if (di->id == p->pc_device) { 578 printf(" device = '%s'\n", di->desc); 579 break; 580 } 581 } 582 } 583 if ((dp = guess_class(p)) != NULL) 584 printf(" class = %s\n", dp); 585 if ((dp = guess_subclass(p)) != NULL) 586 printf(" subclass = %s\n", dp); 587} 588 589static void 590list_vpd(int fd, struct pci_conf *p) 591{ 592 struct pci_list_vpd_io list; 593 struct pci_vpd_element *vpd, *end; 594 595 list.plvi_sel = p->pc_sel; 596 list.plvi_len = 0; 597 list.plvi_data = NULL; 598 if (ioctl(fd, PCIOCLISTVPD, &list) < 0 || list.plvi_len == 0) 599 return; 600 601 list.plvi_data = malloc(list.plvi_len); 602 if (ioctl(fd, PCIOCLISTVPD, &list) < 0) { 603 free(list.plvi_data); 604 return; 605 } 606 607 vpd = list.plvi_data; 608 end = (struct pci_vpd_element *)((char *)vpd + list.plvi_len); 609 for (; vpd < end; vpd = PVE_NEXT(vpd)) { 610 if (vpd->pve_flags == PVE_FLAG_IDENT) { 611 printf(" VPD ident = '%.*s'\n", 612 (int)vpd->pve_datalen, vpd->pve_data); 613 continue; 614 } 615 616 /* Ignore the checksum keyword. */ 617 if (!(vpd->pve_flags & PVE_FLAG_RW) && 618 memcmp(vpd->pve_keyword, "RV", 2) == 0) 619 continue; 620 621 /* Ignore remaining read-write space. */ 622 if (vpd->pve_flags & PVE_FLAG_RW && 623 memcmp(vpd->pve_keyword, "RW", 2) == 0) 624 continue; 625 626 /* Handle extended capability keyword. */ 627 if (!(vpd->pve_flags & PVE_FLAG_RW) && 628 memcmp(vpd->pve_keyword, "CP", 2) == 0) { 629 printf(" VPD ro CP = ID %02x in map 0x%x[0x%x]\n", 630 (unsigned int)vpd->pve_data[0], 631 PCIR_BAR((unsigned int)vpd->pve_data[1]), 632 (unsigned int)vpd->pve_data[3] << 8 | 633 (unsigned int)vpd->pve_data[2]); 634 continue; 635 } 636 637 /* Remaining keywords should all have ASCII values. */ 638 printf(" VPD %s %c%c = '%.*s'\n", 639 vpd->pve_flags & PVE_FLAG_RW ? "rw" : "ro", 640 vpd->pve_keyword[0], vpd->pve_keyword[1], 641 (int)vpd->pve_datalen, vpd->pve_data); 642 } 643 free(list.plvi_data); 644} 645 646/* 647 * This is a direct cut-and-paste from the table in sys/dev/pci/pci.c. 648 */ 649static struct 650{ 651 int class; 652 int subclass; 653 const char *desc; 654} pci_nomatch_tab[] = { 655 {PCIC_OLD, -1, "old"}, 656 {PCIC_OLD, PCIS_OLD_NONVGA, "non-VGA display device"}, 657 {PCIC_OLD, PCIS_OLD_VGA, "VGA-compatible display device"}, 658 {PCIC_STORAGE, -1, "mass storage"}, 659 {PCIC_STORAGE, PCIS_STORAGE_SCSI, "SCSI"}, 660 {PCIC_STORAGE, PCIS_STORAGE_IDE, "ATA"}, 661 {PCIC_STORAGE, PCIS_STORAGE_FLOPPY, "floppy disk"}, 662 {PCIC_STORAGE, PCIS_STORAGE_IPI, "IPI"}, 663 {PCIC_STORAGE, PCIS_STORAGE_RAID, "RAID"}, 664 {PCIC_STORAGE, PCIS_STORAGE_ATA_ADMA, "ATA (ADMA)"}, 665 {PCIC_STORAGE, PCIS_STORAGE_SATA, "SATA"}, 666 {PCIC_STORAGE, PCIS_STORAGE_SAS, "SAS"}, 667 {PCIC_STORAGE, PCIS_STORAGE_NVM, "NVM"}, 668 {PCIC_STORAGE, PCIS_STORAGE_UFS, "UFS"}, 669 {PCIC_NETWORK, -1, "network"}, 670 {PCIC_NETWORK, PCIS_NETWORK_ETHERNET, "ethernet"}, 671 {PCIC_NETWORK, PCIS_NETWORK_TOKENRING, "token ring"}, 672 {PCIC_NETWORK, PCIS_NETWORK_FDDI, "fddi"}, 673 {PCIC_NETWORK, PCIS_NETWORK_ATM, "ATM"}, 674 {PCIC_NETWORK, PCIS_NETWORK_ISDN, "ISDN"}, 675 {PCIC_NETWORK, PCIS_NETWORK_WORLDFIP, "WorldFip"}, 676 {PCIC_NETWORK, PCIS_NETWORK_PICMG, "PICMG"}, 677 {PCIC_NETWORK, PCIS_NETWORK_INFINIBAND, "InfiniBand"}, 678 {PCIC_NETWORK, PCIS_NETWORK_HFC, "host fabric"}, 679 {PCIC_DISPLAY, -1, "display"}, 680 {PCIC_DISPLAY, PCIS_DISPLAY_VGA, "VGA"}, 681 {PCIC_DISPLAY, PCIS_DISPLAY_XGA, "XGA"}, 682 {PCIC_DISPLAY, PCIS_DISPLAY_3D, "3D"}, 683 {PCIC_MULTIMEDIA, -1, "multimedia"}, 684 {PCIC_MULTIMEDIA, PCIS_MULTIMEDIA_VIDEO, "video"}, 685 {PCIC_MULTIMEDIA, PCIS_MULTIMEDIA_AUDIO, "audio"}, 686 {PCIC_MULTIMEDIA, PCIS_MULTIMEDIA_TELE, "telephony"}, 687 {PCIC_MULTIMEDIA, PCIS_MULTIMEDIA_HDA, "HDA"}, 688 {PCIC_MEMORY, -1, "memory"}, 689 {PCIC_MEMORY, PCIS_MEMORY_RAM, "RAM"}, 690 {PCIC_MEMORY, PCIS_MEMORY_FLASH, "flash"}, 691 {PCIC_BRIDGE, -1, "bridge"}, 692 {PCIC_BRIDGE, PCIS_BRIDGE_HOST, "HOST-PCI"}, 693 {PCIC_BRIDGE, PCIS_BRIDGE_ISA, "PCI-ISA"}, 694 {PCIC_BRIDGE, PCIS_BRIDGE_EISA, "PCI-EISA"}, 695 {PCIC_BRIDGE, PCIS_BRIDGE_MCA, "PCI-MCA"}, 696 {PCIC_BRIDGE, PCIS_BRIDGE_PCI, "PCI-PCI"}, 697 {PCIC_BRIDGE, PCIS_BRIDGE_PCMCIA, "PCI-PCMCIA"}, 698 {PCIC_BRIDGE, PCIS_BRIDGE_NUBUS, "PCI-NuBus"}, 699 {PCIC_BRIDGE, PCIS_BRIDGE_CARDBUS, "PCI-CardBus"}, 700 {PCIC_BRIDGE, PCIS_BRIDGE_RACEWAY, "PCI-RACEway"}, 701 {PCIC_BRIDGE, PCIS_BRIDGE_PCI_TRANSPARENT, 702 "Semi-transparent PCI-to-PCI"}, 703 {PCIC_BRIDGE, PCIS_BRIDGE_INFINIBAND, "InfiniBand-PCI"}, 704 {PCIC_BRIDGE, PCIS_BRIDGE_AS_PCI, 705 "AdvancedSwitching-PCI"}, 706 {PCIC_SIMPLECOMM, -1, "simple comms"}, 707 {PCIC_SIMPLECOMM, PCIS_SIMPLECOMM_UART, "UART"}, /* could detect 16550 */ 708 {PCIC_SIMPLECOMM, PCIS_SIMPLECOMM_PAR, "parallel port"}, 709 {PCIC_SIMPLECOMM, PCIS_SIMPLECOMM_MULSER, "multiport serial"}, 710 {PCIC_SIMPLECOMM, PCIS_SIMPLECOMM_MODEM, "generic modem"}, 711 {PCIC_BASEPERIPH, -1, "base peripheral"}, 712 {PCIC_BASEPERIPH, PCIS_BASEPERIPH_PIC, "interrupt controller"}, 713 {PCIC_BASEPERIPH, PCIS_BASEPERIPH_DMA, "DMA controller"}, 714 {PCIC_BASEPERIPH, PCIS_BASEPERIPH_TIMER, "timer"}, 715 {PCIC_BASEPERIPH, PCIS_BASEPERIPH_RTC, "realtime clock"}, 716 {PCIC_BASEPERIPH, PCIS_BASEPERIPH_PCIHOT, "PCI hot-plug controller"}, 717 {PCIC_BASEPERIPH, PCIS_BASEPERIPH_SDHC, "SD host controller"}, 718 {PCIC_BASEPERIPH, PCIS_BASEPERIPH_IOMMU, "IOMMU"}, 719 {PCIC_BASEPERIPH, PCIS_BASEPERIPH_RCEC, 720 "Root Complex Event Collector"}, 721 {PCIC_INPUTDEV, -1, "input device"}, 722 {PCIC_INPUTDEV, PCIS_INPUTDEV_KEYBOARD, "keyboard"}, 723 {PCIC_INPUTDEV, PCIS_INPUTDEV_DIGITIZER,"digitizer"}, 724 {PCIC_INPUTDEV, PCIS_INPUTDEV_MOUSE, "mouse"}, 725 {PCIC_INPUTDEV, PCIS_INPUTDEV_SCANNER, "scanner"}, 726 {PCIC_INPUTDEV, PCIS_INPUTDEV_GAMEPORT, "gameport"}, 727 {PCIC_DOCKING, -1, "docking station"}, 728 {PCIC_PROCESSOR, -1, "processor"}, 729 {PCIC_SERIALBUS, -1, "serial bus"}, 730 {PCIC_SERIALBUS, PCIS_SERIALBUS_FW, "FireWire"}, 731 {PCIC_SERIALBUS, PCIS_SERIALBUS_ACCESS, "AccessBus"}, 732 {PCIC_SERIALBUS, PCIS_SERIALBUS_SSA, "SSA"}, 733 {PCIC_SERIALBUS, PCIS_SERIALBUS_USB, "USB"}, 734 {PCIC_SERIALBUS, PCIS_SERIALBUS_FC, "Fibre Channel"}, 735 {PCIC_SERIALBUS, PCIS_SERIALBUS_SMBUS, "SMBus"}, 736 {PCIC_SERIALBUS, PCIS_SERIALBUS_INFINIBAND, "InfiniBand"}, 737 {PCIC_SERIALBUS, PCIS_SERIALBUS_IPMI, "IPMI"}, 738 {PCIC_SERIALBUS, PCIS_SERIALBUS_SERCOS, "SERCOS"}, 739 {PCIC_SERIALBUS, PCIS_SERIALBUS_CANBUS, "CANbus"}, 740 {PCIC_SERIALBUS, PCIS_SERIALBUS_MIPI_I3C, "MIPI I3C"}, 741 {PCIC_WIRELESS, -1, "wireless controller"}, 742 {PCIC_WIRELESS, PCIS_WIRELESS_IRDA, "iRDA"}, 743 {PCIC_WIRELESS, PCIS_WIRELESS_IR, "IR"}, 744 {PCIC_WIRELESS, PCIS_WIRELESS_RF, "RF"}, 745 {PCIC_WIRELESS, PCIS_WIRELESS_BLUETOOTH, "bluetooth"}, 746 {PCIC_WIRELESS, PCIS_WIRELESS_BROADBAND, "broadband"}, 747 {PCIC_WIRELESS, PCIS_WIRELESS_80211A, "ethernet 802.11a"}, 748 {PCIC_WIRELESS, PCIS_WIRELESS_80211B, "ethernet 802.11b"}, 749 {PCIC_WIRELESS, PCIS_WIRELESS_CELL, 750 "cellular controller/modem"}, 751 {PCIC_WIRELESS, PCIS_WIRELESS_CELL_E, 752 "cellular controller/modem plus ethernet"}, 753 {PCIC_INTELLIIO, -1, "intelligent I/O controller"}, 754 {PCIC_INTELLIIO, PCIS_INTELLIIO_I2O, "I2O"}, 755 {PCIC_SATCOM, -1, "satellite communication"}, 756 {PCIC_SATCOM, PCIS_SATCOM_TV, "sat TV"}, 757 {PCIC_SATCOM, PCIS_SATCOM_AUDIO, "sat audio"}, 758 {PCIC_SATCOM, PCIS_SATCOM_VOICE, "sat voice"}, 759 {PCIC_SATCOM, PCIS_SATCOM_DATA, "sat data"}, 760 {PCIC_CRYPTO, -1, "encrypt/decrypt"}, 761 {PCIC_CRYPTO, PCIS_CRYPTO_NETCOMP, "network/computer crypto"}, 762 {PCIC_CRYPTO, PCIS_CRYPTO_NETCOMP, "entertainment crypto"}, 763 {PCIC_DASP, -1, "dasp"}, 764 {PCIC_DASP, PCIS_DASP_DPIO, "DPIO module"}, 765 {PCIC_DASP, PCIS_DASP_PERFCNTRS, "performance counters"}, 766 {PCIC_DASP, PCIS_DASP_COMM_SYNC, "communication synchronizer"}, 767 {PCIC_DASP, PCIS_DASP_MGMT_CARD, "signal processing management"}, 768 {PCIC_ACCEL, -1, "processing accelerators"}, 769 {PCIC_ACCEL, PCIS_ACCEL_PROCESSING, "processing accelerators"}, 770 {PCIC_INSTRUMENT, -1, "non-essential instrumentation"}, 771 {0, 0, NULL} 772}; 773 774static const char * 775guess_class(struct pci_conf *p) 776{ 777 int i; 778 779 for (i = 0; pci_nomatch_tab[i].desc != NULL; i++) { 780 if (pci_nomatch_tab[i].class == p->pc_class) 781 return(pci_nomatch_tab[i].desc); 782 } 783 return(NULL); 784} 785 786static const char * 787guess_subclass(struct pci_conf *p) 788{ 789 int i; 790 791 for (i = 0; pci_nomatch_tab[i].desc != NULL; i++) { 792 if ((pci_nomatch_tab[i].class == p->pc_class) && 793 (pci_nomatch_tab[i].subclass == p->pc_subclass)) 794 return(pci_nomatch_tab[i].desc); 795 } 796 return(NULL); 797} 798 799static int 800load_vendors(void) 801{ 802 const char *dbf; 803 FILE *db; 804 struct pci_vendor_info *cv; 805 struct pci_device_info *cd; 806 char buf[1024], str[1024]; 807 char *ch; 808 int id, error; 809 810 /* 811 * Locate the database and initialise. 812 */ 813 TAILQ_INIT(&pci_vendors); 814 if ((dbf = getenv("PCICONF_VENDOR_DATABASE")) == NULL) 815 dbf = _PATH_LPCIVDB; 816 if ((db = fopen(dbf, "r")) == NULL) { 817 dbf = _PATH_PCIVDB; 818 if ((db = fopen(dbf, "r")) == NULL) 819 return(1); 820 } 821 cv = NULL; 822 cd = NULL; 823 error = 0; 824 825 /* 826 * Scan input lines from the database 827 */ 828 for (;;) { 829 if (fgets(buf, sizeof(buf), db) == NULL) 830 break; 831 832 if ((ch = strchr(buf, '#')) != NULL) 833 *ch = '\0'; 834 ch = strchr(buf, '\0') - 1; 835 while (ch > buf && isspace(*ch)) 836 *ch-- = '\0'; 837 if (ch <= buf) 838 continue; 839 840 /* Can't handle subvendor / subdevice entries yet */ 841 if (buf[0] == '\t' && buf[1] == '\t') 842 continue; 843 844 /* Check for vendor entry */ 845 if (buf[0] != '\t' && sscanf(buf, "%04x %[^\n]", &id, str) == 2) { 846 if ((id == 0) || (strlen(str) < 1)) 847 continue; 848 if ((cv = malloc(sizeof(struct pci_vendor_info))) == NULL) { 849 warn("allocating vendor entry"); 850 error = 1; 851 break; 852 } 853 if ((cv->desc = strdup(str)) == NULL) { 854 free(cv); 855 warn("allocating vendor description"); 856 error = 1; 857 break; 858 } 859 cv->id = id; 860 TAILQ_INIT(&cv->devs); 861 TAILQ_INSERT_TAIL(&pci_vendors, cv, link); 862 continue; 863 } 864 865 /* Check for device entry */ 866 if (buf[0] == '\t' && sscanf(buf + 1, "%04x %[^\n]", &id, str) == 2) { 867 if ((id == 0) || (strlen(str) < 1)) 868 continue; 869 if (cv == NULL) { 870 warnx("device entry with no vendor!"); 871 continue; 872 } 873 if ((cd = malloc(sizeof(struct pci_device_info))) == NULL) { 874 warn("allocating device entry"); 875 error = 1; 876 break; 877 } 878 if ((cd->desc = strdup(str)) == NULL) { 879 free(cd); 880 warn("allocating device description"); 881 error = 1; 882 break; 883 } 884 cd->id = id; 885 TAILQ_INSERT_TAIL(&cv->devs, cd, link); 886 continue; 887 } 888 889 /* It's a comment or junk, ignore it */ 890 } 891 if (ferror(db)) 892 error = 1; 893 fclose(db); 894 895 return(error); 896} 897 898uint32_t 899read_config(int fd, struct pcisel *sel, long reg, int width) 900{ 901 struct pci_io pi; 902 903 pi.pi_sel = *sel; 904 pi.pi_reg = reg; 905 pi.pi_width = width; 906 907 if (ioctl(fd, PCIOCREAD, &pi) < 0) 908 err(1, "ioctl(PCIOCREAD)"); 909 910 return (pi.pi_data); 911} 912 913static struct pcisel 914getdevice(const char *name) 915{ 916 struct pci_conf_io pc; 917 struct pci_conf conf[1]; 918 struct pci_match_conf patterns[1]; 919 char *cp; 920 int fd; 921 922 fd = open(_PATH_DEVPCI, O_RDONLY, 0); 923 if (fd < 0) 924 err(1, "%s", _PATH_DEVPCI); 925 926 bzero(&pc, sizeof(struct pci_conf_io)); 927 pc.match_buf_len = sizeof(conf); 928 pc.matches = conf; 929 930 bzero(&patterns, sizeof(patterns)); 931 932 /* 933 * The pattern structure requires the unit to be split out from 934 * the driver name. Walk backwards from the end of the name to 935 * find the start of the unit. 936 */ 937 if (name[0] == '\0') 938 errx(1, "Empty device name"); 939 cp = strchr(name, '\0'); 940 assert(cp != NULL && cp != name); 941 cp--; 942 while (cp != name && isdigit(cp[-1])) 943 cp--; 944 if (cp == name || !isdigit(*cp)) 945 errx(1, "Invalid device name"); 946 if ((size_t)(cp - name) + 1 > sizeof(patterns[0].pd_name)) 947 errx(1, "Device name is too long"); 948 memcpy(patterns[0].pd_name, name, cp - name); 949 patterns[0].pd_unit = strtol(cp, &cp, 10); 950 if (*cp != '\0') 951 errx(1, "Invalid device name"); 952 patterns[0].flags = PCI_GETCONF_MATCH_NAME | PCI_GETCONF_MATCH_UNIT; 953 pc.num_patterns = 1; 954 pc.pat_buf_len = sizeof(patterns); 955 pc.patterns = patterns; 956 957 if (ioctl(fd, PCIOCGETCONF, &pc) == -1) 958 err(1, "ioctl(PCIOCGETCONF)"); 959 if (pc.status != PCI_GETCONF_LAST_DEVICE && 960 pc.status != PCI_GETCONF_MORE_DEVS) 961 errx(1, "error returned from PCIOCGETCONF ioctl"); 962 close(fd); 963 if (pc.num_matches == 0) 964 errx(1, "Device not found"); 965 return (conf[0].pc_sel); 966} 967 968static struct pcisel 969parsesel(const char *str) 970{ 971 const char *ep; 972 char *eppos; 973 struct pcisel sel; 974 unsigned long selarr[4]; 975 int i; 976 977 ep = strchr(str, '@'); 978 if (ep != NULL) 979 ep++; 980 else 981 ep = str; 982 983 if (strncmp(ep, "pci", 3) == 0) { 984 ep += 3; 985 i = 0; 986 while (isdigit(*ep) && i < 4) { 987 selarr[i++] = strtoul(ep, &eppos, 10); 988 ep = eppos; 989 if (*ep == ':') 990 ep++; 991 } 992 if (i > 0 && *ep == '\0') { 993 sel.pc_func = (i > 2) ? selarr[--i] : 0; 994 sel.pc_dev = (i > 0) ? selarr[--i] : 0; 995 sel.pc_bus = (i > 0) ? selarr[--i] : 0; 996 sel.pc_domain = (i > 0) ? selarr[--i] : 0; 997 return (sel); 998 } 999 } 1000 errx(1, "cannot parse selector %s", str); 1001} 1002 1003static struct pcisel 1004getsel(const char *str) 1005{ 1006 1007 /* 1008 * No device names contain colons and selectors always contain 1009 * at least one colon. 1010 */ 1011 if (strchr(str, ':') == NULL) 1012 return (getdevice(str)); 1013 else 1014 return (parsesel(str)); 1015} 1016 1017static void 1018readone(int fd, struct pcisel *sel, long reg, int width) 1019{ 1020 1021 printf("%0*x", width*2, read_config(fd, sel, reg, width)); 1022} 1023 1024static void 1025readit(const char *name, const char *reg, int width) 1026{ 1027 long rstart; 1028 long rend; 1029 long r; 1030 char *end; 1031 int i; 1032 int fd; 1033 struct pcisel sel; 1034 1035 fd = open(_PATH_DEVPCI, O_RDWR, 0); 1036 if (fd < 0) 1037 err(1, "%s", _PATH_DEVPCI); 1038 1039 rend = rstart = strtol(reg, &end, 0); 1040 if (end && *end == ':') { 1041 end++; 1042 rend = strtol(end, (char **) 0, 0); 1043 } 1044 sel = getsel(name); 1045 for (i = 1, r = rstart; r <= rend; i++, r += width) { 1046 readone(fd, &sel, r, width); 1047 if (i && !(i % 8)) 1048 putchar(' '); 1049 putchar(i % (16/width) ? ' ' : '\n'); 1050 } 1051 if (i % (16/width) != 1) 1052 putchar('\n'); 1053 close(fd); 1054} 1055 1056static void 1057writeit(const char *name, const char *reg, const char *data, int width) 1058{ 1059 int fd; 1060 struct pci_io pi; 1061 1062 pi.pi_sel = getsel(name); 1063 pi.pi_reg = strtoul(reg, (char **)0, 0); /* XXX error check */ 1064 pi.pi_width = width; 1065 pi.pi_data = strtoul(data, (char **)0, 0); /* XXX error check */ 1066 1067 fd = open(_PATH_DEVPCI, O_RDWR, 0); 1068 if (fd < 0) 1069 err(1, "%s", _PATH_DEVPCI); 1070 1071 if (ioctl(fd, PCIOCWRITE, &pi) < 0) 1072 err(1, "ioctl(PCIOCWRITE)"); 1073 close(fd); 1074} 1075 1076static void 1077chkattached(const char *name) 1078{ 1079 int fd; 1080 struct pci_io pi; 1081 1082 pi.pi_sel = getsel(name); 1083 1084 fd = open(_PATH_DEVPCI, O_RDWR, 0); 1085 if (fd < 0) 1086 err(1, "%s", _PATH_DEVPCI); 1087 1088 if (ioctl(fd, PCIOCATTACHED, &pi) < 0) 1089 err(1, "ioctl(PCIOCATTACHED)"); 1090 1091 exitstatus = pi.pi_data ? 0 : 2; /* exit(2), if NOT attached */ 1092 printf("%s: %s%s\n", name, pi.pi_data == 0 ? "not " : "", "attached"); 1093 close(fd); 1094} 1095 1096static void 1097dump_bar(const char *name, const char *reg, const char *bar_start, 1098 const char *bar_count, int width, int verbose) 1099{ 1100 struct pci_bar_mmap pbm; 1101 uint32_t *dd; 1102 uint16_t *dh; 1103 uint8_t *db; 1104 uint64_t *dx, a, start, count; 1105 char *el; 1106 size_t res; 1107 int fd; 1108 1109 start = 0; 1110 if (bar_start != NULL) { 1111 start = strtoul(bar_start, &el, 0); 1112 if (*el != '\0') 1113 errx(1, "Invalid bar start specification %s", 1114 bar_start); 1115 } 1116 count = 0; 1117 if (bar_count != NULL) { 1118 count = strtoul(bar_count, &el, 0); 1119 if (*el != '\0') 1120 errx(1, "Invalid count specification %s", 1121 bar_count); 1122 } 1123 1124 pbm.pbm_sel = getsel(name); 1125 pbm.pbm_reg = strtoul(reg, &el, 0); 1126 if (*reg == '\0' || *el != '\0') 1127 errx(1, "Invalid bar specification %s", reg); 1128 pbm.pbm_flags = 0; 1129 pbm.pbm_memattr = VM_MEMATTR_DEVICE; 1130 1131 fd = open(_PATH_DEVPCI, O_RDWR, 0); 1132 if (fd < 0) 1133 err(1, "%s", _PATH_DEVPCI); 1134 1135 if (ioctl(fd, PCIOCBARMMAP, &pbm) < 0) 1136 err(1, "ioctl(PCIOCBARMMAP)"); 1137 1138 if (count == 0) 1139 count = pbm.pbm_bar_length / width; 1140 if (start + count < start || (start + count) * width < (uint64_t)width) 1141 errx(1, "(start + count) x width overflow"); 1142 if ((start + count) * width > pbm.pbm_bar_length) { 1143 if (start * width > pbm.pbm_bar_length) 1144 count = 0; 1145 else 1146 count = (pbm.pbm_bar_length - start * width) / width; 1147 } 1148 if (verbose) { 1149 fprintf(stderr, 1150 "Dumping pci%d:%d:%d:%d BAR %x mapped base %p " 1151 "off %#x length %#jx from %#jx count %#jx in %d-bytes\n", 1152 pbm.pbm_sel.pc_domain, pbm.pbm_sel.pc_bus, 1153 pbm.pbm_sel.pc_dev, pbm.pbm_sel.pc_func, 1154 pbm.pbm_reg, pbm.pbm_map_base, pbm.pbm_bar_off, 1155 pbm.pbm_bar_length, start, count, width); 1156 } 1157 switch (width) { 1158 case 1: 1159 db = (uint8_t *)(uintptr_t)((uintptr_t)pbm.pbm_map_base + 1160 pbm.pbm_bar_off + start * width); 1161 for (a = 0; a < count; a += width, db++) { 1162 res = fwrite(db, width, 1, stdout); 1163 if (res != 1) { 1164 errx(1, "error writing to stdout"); 1165 break; 1166 } 1167 } 1168 break; 1169 case 2: 1170 dh = (uint16_t *)(uintptr_t)((uintptr_t)pbm.pbm_map_base + 1171 pbm.pbm_bar_off + start * width); 1172 for (a = 0; a < count; a += width, dh++) { 1173 res = fwrite(dh, width, 1, stdout); 1174 if (res != 1) { 1175 errx(1, "error writing to stdout"); 1176 break; 1177 } 1178 } 1179 break; 1180 case 4: 1181 dd = (uint32_t *)(uintptr_t)((uintptr_t)pbm.pbm_map_base + 1182 pbm.pbm_bar_off + start * width); 1183 for (a = 0; a < count; a += width, dd++) { 1184 res = fwrite(dd, width, 1, stdout); 1185 if (res != 1) { 1186 errx(1, "error writing to stdout"); 1187 break; 1188 } 1189 } 1190 break; 1191 case 8: 1192 dx = (uint64_t *)(uintptr_t)((uintptr_t)pbm.pbm_map_base + 1193 pbm.pbm_bar_off + start * width); 1194 for (a = 0; a < count; a += width, dx++) { 1195 res = fwrite(dx, width, 1, stdout); 1196 if (res != 1) { 1197 errx(1, "error writing to stdout"); 1198 break; 1199 } 1200 } 1201 break; 1202 default: 1203 errx(1, "invalid access width"); 1204 } 1205 1206 munmap((void *)pbm.pbm_map_base, pbm.pbm_map_length); 1207 close(fd); 1208} 1209