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