]>
git.ipfire.org Git - thirdparty/pciutils.git/blob - setpci.c
2 * The PCI Utilities -- Manipulate PCI Configuration Registers
4 * Copyright (c) 1998--2020 Martin Mares <mj@ucw.cz>
6 * Can be freely distributed and used under the terms of the GNU GPL.
15 #define PCIUTILS_SETPCI
18 static int force
; /* Don't complain if no devices match */
19 static int verbose
; /* Verbosity level */
20 static int demo_mode
; /* Only show */
21 static int allow_raw_access
;
23 const char program_name
[] = "setpci";
25 static struct pci_access
*pacc
;
34 u16 cap_type
; /* PCI_CAP_xxx or 0 */
37 unsigned int width
; /* Byte width of the access */
38 unsigned int num_values
; /* Number of values to write; 0=read */
39 unsigned int number
; /* The n-th capability of that id */
40 struct value values
[0];
45 struct pci_filter filter
;
50 static struct group
*first_group
, **last_group
= &first_group
;
51 static int need_bus_scan
;
52 static unsigned int max_values
[] = { 0, 0xff, 0xffff, 0, 0xffffffff };
55 matches_single_device(struct group
*group
)
57 struct pci_filter
*f
= &group
->filter
;
58 return (f
->domain
>= 0 && f
->bus
>= 0 && f
->slot
>= 0 && f
->func
>= 0);
61 static struct pci_dev
**
62 select_devices(struct group
*group
)
64 struct pci_filter
*f
= &group
->filter
;
66 if (!need_bus_scan
&& matches_single_device(group
))
68 struct pci_dev
**devs
= xmalloc(sizeof(struct device
*) * 2);
69 struct pci_dev
*dev
= pci_get_dev(pacc
, f
->domain
, f
->bus
, f
->slot
, f
->func
);
71 if (pci_filter_match(f
, dev
))
78 struct pci_dev
**devs
, *dev
;
82 for (dev
= pacc
->devices
; dev
; dev
= dev
->next
)
83 if (pci_filter_match(f
, dev
))
86 devs
= xmalloc(sizeof(struct device
*) * cnt
);
88 for (dev
= pacc
->devices
; dev
; dev
= dev
->next
)
89 if (pci_filter_match(f
, dev
))
97 static void PCI_PRINTF(1,2)
98 trace(const char *fmt
, ...)
108 exec_op(struct op
*op
, struct pci_dev
*dev
)
110 const char * const formats
[] = { NULL
, " %02x", " %04x", NULL
, " %08x" };
111 const char * const mask_formats
[] = { NULL
, " %02x->(%02x:%02x)->%02x", " %04x->(%04x:%04x)->%04x", NULL
, " %08x->(%08x:%08x)->%08x" };
112 unsigned int i
, x
, y
;
114 int width
= op
->width
;
117 sprintf(slot
, "%04x:%02x:%02x.%x", dev
->domain
, dev
->bus
, dev
->dev
, dev
->func
);
122 unsigned int cap_nr
= op
->number
;
123 cap
= pci_find_cap_nr(dev
, op
->cap_id
, op
->cap_type
, &cap_nr
);
126 else if (cap_nr
== 0)
127 die("%s: Instance #%d of %s %04x not found - there are no capabilities with that id.", slot
,
128 op
->number
, ((op
->cap_type
== PCI_CAP_NORMAL
) ? "Capability" : "Extended capability"),
131 die("%s: Instance #%d of %s %04x not found - there %s only %d %s with that id.", slot
,
132 op
->number
, ((op
->cap_type
== PCI_CAP_NORMAL
) ? "Capability" : "Extended capability"),
133 op
->cap_id
, ((cap_nr
== 1) ? "is" : "are"), cap_nr
,
134 ((cap_nr
== 1) ? "capability" : "capabilities"));
136 trace(((op
->cap_type
== PCI_CAP_NORMAL
) ? "(cap %02x @%02x) " : "(ecap %04x @%03x) "), op
->cap_id
, addr
);
139 trace("@%02x", addr
);
141 /* We have already checked it when parsing, but addressing relative to capabilities can change the address. */
142 if (addr
& (width
-1))
143 die("%s: Unaligned access of width %d to register %04x", slot
, width
, addr
);
144 if (addr
+ width
> 0x1000)
145 die("%s: Access of width %d to register %04x out of range", slot
, width
, addr
);
149 for (i
=0; i
<op
->num_values
; i
++)
151 if ((op
->values
[i
].mask
& max_values
[width
]) == max_values
[width
])
153 x
= op
->values
[i
].value
;
154 trace(formats
[width
], op
->values
[i
].value
);
161 y
= pci_read_byte(dev
, addr
);
164 y
= pci_read_word(dev
, addr
);
167 y
= pci_read_long(dev
, addr
);
170 x
= (y
& ~op
->values
[i
].mask
) | op
->values
[i
].value
;
171 trace(mask_formats
[width
], y
, op
->values
[i
].value
, op
->values
[i
].mask
, x
);
178 pci_write_byte(dev
, addr
, x
);
181 pci_write_word(dev
, addr
, x
);
184 pci_write_long(dev
, addr
, x
);
198 x
= pci_read_byte(dev
, addr
);
201 x
= pci_read_word(dev
, addr
);
204 x
= pci_read_long(dev
, addr
);
207 printf(formats
[width
]+1, x
);
218 for (group
= first_group
; group
; group
= group
->next
)
220 struct pci_dev
**vec
= select_devices(group
);
225 if (!vec
[0] && !force
)
226 fprintf(stderr
, "setpci: Warning: No devices selected for operation group %d.\n", group_cnt
);
228 for (i
= 0; dev
= vec
[i
]; i
++)
231 for (op
= group
->first_op
; op
; op
= op
->next
)
245 for (group
= first_group
; group
; group
= group
->next
)
246 for (op
= group
->first_op
; op
; op
= op
->next
)
248 if (op
->num_values
&& !demo_mode
)
250 if (!matches_single_device(group
) || !allow_raw_access
)
262 static const struct reg_name pci_reg_names
[] = {
263 { 0, 0x00, 2, "VENDOR_ID" },
264 { 0, 0x02, 2, "DEVICE_ID" },
265 { 0, 0x04, 2, "COMMAND" },
266 { 0, 0x06, 2, "STATUS" },
267 { 0, 0x08, 1, "REVISION" },
268 { 0, 0x09, 1, "CLASS_PROG" },
269 { 0, 0x0a, 2, "CLASS_DEVICE" },
270 { 0, 0x0c, 1, "CACHE_LINE_SIZE" },
271 { 0, 0x0d, 1, "LATENCY_TIMER" },
272 { 0, 0x0e, 1, "HEADER_TYPE" },
273 { 0, 0x0f, 1, "BIST" },
274 { 0, 0x10, 4, "BASE_ADDRESS_0" },
275 { 0, 0x14, 4, "BASE_ADDRESS_1" },
276 { 0, 0x18, 4, "BASE_ADDRESS_2" },
277 { 0, 0x1c, 4, "BASE_ADDRESS_3" },
278 { 0, 0x20, 4, "BASE_ADDRESS_4" },
279 { 0, 0x24, 4, "BASE_ADDRESS_5" },
280 { 0, 0x28, 4, "CARDBUS_CIS" },
281 { 0, 0x2c, 2, "SUBSYSTEM_VENDOR_ID" },
282 { 0, 0x2e, 2, "SUBSYSTEM_ID" },
283 { 0, 0x30, 4, "ROM_ADDRESS" },
284 { 0, 0x3c, 1, "INTERRUPT_LINE" },
285 { 0, 0x3d, 1, "INTERRUPT_PIN" },
286 { 0, 0x3e, 1, "MIN_GNT" },
287 { 0, 0x3f, 1, "MAX_LAT" },
288 { 0, 0x18, 1, "PRIMARY_BUS" },
289 { 0, 0x19, 1, "SECONDARY_BUS" },
290 { 0, 0x1a, 1, "SUBORDINATE_BUS" },
291 { 0, 0x1b, 1, "SEC_LATENCY_TIMER" },
292 { 0, 0x1c, 1, "IO_BASE" },
293 { 0, 0x1d, 1, "IO_LIMIT" },
294 { 0, 0x1e, 2, "SEC_STATUS" },
295 { 0, 0x20, 2, "MEMORY_BASE" },
296 { 0, 0x22, 2, "MEMORY_LIMIT" },
297 { 0, 0x24, 2, "PREF_MEMORY_BASE" },
298 { 0, 0x26, 2, "PREF_MEMORY_LIMIT" },
299 { 0, 0x28, 4, "PREF_BASE_UPPER32" },
300 { 0, 0x2c, 4, "PREF_LIMIT_UPPER32" },
301 { 0, 0x30, 2, "IO_BASE_UPPER16" },
302 { 0, 0x32, 2, "IO_LIMIT_UPPER16" },
303 { 0, 0x38, 4, "BRIDGE_ROM_ADDRESS" },
304 { 0, 0x3e, 2, "BRIDGE_CONTROL" },
305 { 0, 0x10, 4, "CB_CARDBUS_BASE" },
306 { 0, 0x14, 2, "CB_CAPABILITIES" },
307 { 0, 0x16, 2, "CB_SEC_STATUS" },
308 { 0, 0x18, 1, "CB_BUS_NUMBER" },
309 { 0, 0x19, 1, "CB_CARDBUS_NUMBER" },
310 { 0, 0x1a, 1, "CB_SUBORDINATE_BUS" },
311 { 0, 0x1b, 1, "CB_CARDBUS_LATENCY" },
312 { 0, 0x1c, 4, "CB_MEMORY_BASE_0" },
313 { 0, 0x20, 4, "CB_MEMORY_LIMIT_0" },
314 { 0, 0x24, 4, "CB_MEMORY_BASE_1" },
315 { 0, 0x28, 4, "CB_MEMORY_LIMIT_1" },
316 { 0, 0x2c, 2, "CB_IO_BASE_0" },
317 { 0, 0x2e, 2, "CB_IO_BASE_0_HI" },
318 { 0, 0x30, 2, "CB_IO_LIMIT_0" },
319 { 0, 0x32, 2, "CB_IO_LIMIT_0_HI" },
320 { 0, 0x34, 2, "CB_IO_BASE_1" },
321 { 0, 0x36, 2, "CB_IO_BASE_1_HI" },
322 { 0, 0x38, 2, "CB_IO_LIMIT_1" },
323 { 0, 0x3a, 2, "CB_IO_LIMIT_1_HI" },
324 { 0, 0x40, 2, "CB_SUBSYSTEM_VENDOR_ID" },
325 { 0, 0x42, 2, "CB_SUBSYSTEM_ID" },
326 { 0, 0x44, 4, "CB_LEGACY_MODE_BASE" },
327 { 0x10001, 0, 0, "CAP_PM" },
328 { 0x10002, 0, 0, "CAP_AGP" },
329 { 0x10003, 0, 0, "CAP_VPD" },
330 { 0x10004, 0, 0, "CAP_SLOTID" },
331 { 0x10005, 0, 0, "CAP_MSI" },
332 { 0x10006, 0, 0, "CAP_CHSWP" },
333 { 0x10007, 0, 0, "CAP_PCIX" },
334 { 0x10008, 0, 0, "CAP_HT" },
335 { 0x10009, 0, 0, "CAP_VNDR" },
336 { 0x1000a, 0, 0, "CAP_DBG" },
337 { 0x1000b, 0, 0, "CAP_CCRC" },
338 { 0x1000c, 0, 0, "CAP_HOTPLUG" },
339 { 0x1000d, 0, 0, "CAP_SSVID" },
340 { 0x1000e, 0, 0, "CAP_AGP3" },
341 { 0x1000f, 0, 0, "CAP_SECURE" },
342 { 0x10010, 0, 0, "CAP_EXP" },
343 { 0x10011, 0, 0, "CAP_MSIX" },
344 { 0x10012, 0, 0, "CAP_SATA" },
345 { 0x10013, 0, 0, "CAP_AF" },
346 { 0x10014, 0, 0, "CAP_EA" },
347 { 0x20001, 0, 0, "ECAP_AER" },
348 { 0x20002, 0, 0, "ECAP_VC" },
349 { 0x20003, 0, 0, "ECAP_DSN" },
350 { 0x20004, 0, 0, "ECAP_PB" },
351 { 0x20005, 0, 0, "ECAP_RCLINK" },
352 { 0x20006, 0, 0, "ECAP_RCILINK" },
353 { 0x20007, 0, 0, "ECAP_RCEC" },
354 { 0x20008, 0, 0, "ECAP_MFVC" },
355 { 0x20009, 0, 0, "ECAP_VC2" },
356 { 0x2000a, 0, 0, "ECAP_RBCB" },
357 { 0x2000b, 0, 0, "ECAP_VNDR" },
358 { 0x2000d, 0, 0, "ECAP_ACS" },
359 { 0x2000e, 0, 0, "ECAP_ARI" },
360 { 0x2000f, 0, 0, "ECAP_ATS" },
361 { 0x20010, 0, 0, "ECAP_SRIOV" },
362 { 0x20011, 0, 0, "ECAP_MRIOV" },
363 { 0x20012, 0, 0, "ECAP_MCAST" },
364 { 0x20013, 0, 0, "ECAP_PRI" },
365 { 0x20015, 0, 0, "ECAP_REBAR" },
366 { 0x20016, 0, 0, "ECAP_DPA" },
367 { 0x20017, 0, 0, "ECAP_TPH" },
368 { 0x20018, 0, 0, "ECAP_LTR" },
369 { 0x20019, 0, 0, "ECAP_SECPCI" },
370 { 0x2001a, 0, 0, "ECAP_PMUX" },
371 { 0x2001b, 0, 0, "ECAP_PASID" },
372 { 0x2001c, 0, 0, "ECAP_LNR" },
373 { 0x2001d, 0, 0, "ECAP_DPC" },
374 { 0x2001e, 0, 0, "ECAP_L1PM" },
375 { 0x2001f, 0, 0, "ECAP_PTM" },
376 { 0x20020, 0, 0, "ECAP_M_PCIE" },
377 { 0x20021, 0, 0, "ECAP_FRS" },
378 { 0x20022, 0, 0, "ECAP_RTR" },
379 { 0x20023, 0, 0, "ECAP_DVSEC" },
380 { 0x20024, 0, 0, "ECAP_VF_REBAR" },
381 { 0x20025, 0, 0, "ECAP_DLNK" },
382 { 0x20026, 0, 0, "ECAP_16GT" },
383 { 0x20027, 0, 0, "ECAP_LMR" },
384 { 0x20028, 0, 0, "ECAP_HIER_ID" },
385 { 0x20029, 0, 0, "ECAP_NPEM" },
392 const struct reg_name
*r
;
394 printf("cap pos w name\n");
395 for (r
= pci_reg_names
; r
->name
; r
++)
397 if (r
->cap
>= 0x20000)
398 printf("%04x", r
->cap
- 0x20000);
400 printf(" %02x", r
->cap
- 0x10000);
403 printf(" %02x %c %s\n", r
->offset
, "-BW?L"[r
->width
], r
->name
);
411 "Usage: setpci [<options>] (<device>+ <reg>[=<values>]*)*\n"
414 "-f\t\tDon't complain if there's nothing to do\n"
416 "-D\t\tList changes, don't commit them\n"
417 "-r\t\tUse raw access without bus scan if possible\n"
418 "--dumpregs\tDump all known register names and exit\n"
420 "PCI access options:\n"
423 "Setting commands:\n"
424 "<device>:\t-s [[[<domain>]:][<bus>]:][<slot>][.[<func>]]\n"
425 "\t\t-d [<vendor>]:[<device>]\n"
426 "<reg>:\t\t<base>[+<offset>][.(B|W|L)][@<number>]\n"
427 "<base>:\t\t<address>\n"
428 "\t\t<named-register>\n"
429 "\t\t[E]CAP_<capability-name>\n"
430 "\t\t[E]CAP<capability-number>\n"
431 "<values>:\t<value>[,<value>...]\n"
433 "\t\t<hex>:<mask>\n");
437 static void NONRET
PCI_PRINTF(1,2)
438 parse_err(const char *msg
, ...)
442 fprintf(stderr
, "setpci: ");
443 vfprintf(stderr
, msg
, args
);
444 fprintf(stderr
, ".\nTry `setpci --help' for more information.\n");
449 parse_options(int argc
, char **argv
)
451 const char opts
[] = GENERIC_OPTIONS
;
456 if (!strcmp(argv
[1], "--help"))
458 if (!strcmp(argv
[1], "--version"))
460 puts("setpci version " PCIUTILS_VERSION
);
463 if (!strcmp(argv
[1], "--dumpregs"))
470 while (i
< argc
&& argv
[i
][0] == '-')
472 char *c
= argv
[i
++] + 1;
497 if (e
= strchr(opts
, *c
))
508 parse_err("Option -%c requires an argument", *e
);
513 if (!parse_generic_option(*e
, pacc
, arg
))
514 parse_err("Unable to parse option -%c", *e
);
519 parse_err("Invalid or misplaced option -%c", *c
);
528 static int parse_filter(int argc
, char **argv
, int i
, struct group
*group
)
533 if (!c
[1] || !strchr("sd", c
[1]))
534 parse_err("Invalid option -%c", c
[1]);
536 d
= (c
[2] == '=') ? c
+3 : c
+2;
540 parse_err("Option -%c requires an argument", c
[1]);
544 if (d
= pci_filter_parse_slot(&group
->filter
, d
))
545 parse_err("Unable to parse filter -s %s", d
);
548 if (d
= pci_filter_parse_id(&group
->filter
, d
))
549 parse_err("Unable to parse filter -d %s", d
);
552 parse_err("Unknown filter option -%c", c
[1]);
558 static const struct reg_name
*parse_reg_name(char *name
)
560 const struct reg_name
*r
;
562 for (r
= pci_reg_names
; r
->name
; r
++)
563 if (!strcasecmp(r
->name
, name
))
568 static int parse_x32(char *c
, char **stopp
, unsigned int *resp
)
576 l
= strtoul(c
, &stop
, 16);
596 static void parse_register(struct op
*op
, char *base
)
598 const struct reg_name
*r
;
601 op
->cap_type
= op
->cap_id
= 0;
602 if (parse_x32(base
, NULL
, &op
->addr
) > 0)
604 else if (r
= parse_reg_name(base
))
606 switch (r
->cap
& 0xff0000)
609 op
->cap_type
= PCI_CAP_NORMAL
;
612 op
->cap_type
= PCI_CAP_EXTENDED
;
615 op
->cap_id
= r
->cap
& 0xffff;
616 op
->addr
= r
->offset
;
617 if (r
->width
&& !op
->width
)
618 op
->width
= r
->width
;
621 else if (!strncasecmp(base
, "CAP", 3))
623 if (parse_x32(base
+3, NULL
, &cap
) > 0 && cap
< 0x100)
625 op
->cap_type
= PCI_CAP_NORMAL
;
631 else if (!strncasecmp(base
, "ECAP", 4))
633 if (parse_x32(base
+4, NULL
, &cap
) > 0 && cap
< 0x1000)
635 op
->cap_type
= PCI_CAP_EXTENDED
;
641 parse_err("Unknown register \"%s\"", base
);
644 static void parse_op(char *c
, struct group
*group
)
646 char *base
, *offset
, *width
, *value
, *number
;
651 /* Split the argument */
653 if (value
= strchr(base
, '='))
655 if (number
= strchr(base
, '@'))
657 if (width
= strchr(base
, '.'))
659 if (offset
= strchr(base
, '+'))
662 /* Look for setting of values and count how many */
667 parse_err("Missing value");
669 for (e
=value
; *e
; e
++)
674 /* Allocate the operation */
675 op
= xmalloc(sizeof(struct op
) + n
*sizeof(struct value
));
676 memset(op
, 0, sizeof(struct op
));
677 *group
->last_op
= op
;
678 group
->last_op
= &op
->next
;
681 /* What is the width suffix? */
685 parse_err("Invalid width \"%s\"", width
);
686 switch (*width
& 0xdf)
689 op
->width
= 1; break;
691 op
->width
= 2; break;
693 op
->width
= 4; break;
695 parse_err("Invalid width \"%c\"", *width
);
701 /* Check which n-th capability of the same id we want */
705 if (parse_x32(number
, NULL
, &num
) <= 0 || (int) num
< 0)
706 parse_err("Invalid number \"%s\"", number
);
713 /* Find the register */
714 parse_register(op
, base
);
716 parse_err("Missing width");
722 if (parse_x32(offset
, NULL
, &off
) <= 0 || off
>= 0x1000)
723 parse_err("Invalid offset \"%s\"", offset
);
728 if (op
->addr
>= 0x1000 || op
->addr
+ op
->width
*(n
? n
: 1) > 0x1000)
729 parse_err("Register number %02x out of range", op
->addr
);
730 if (op
->addr
& (op
->width
- 1))
731 parse_err("Unaligned register address %02x", op
->addr
);
733 /* Parse the values */
736 unsigned int ll
, lim
;
737 e
= strchr(value
, ',');
740 if (parse_x32(value
, &f
, &ll
) < 0 || f
&& *f
!= ':')
741 parse_err("Invalid value \"%s\"", value
);
742 lim
= max_values
[op
->width
];
743 if (ll
> lim
&& ll
< ~0U - lim
)
744 parse_err("Value \"%s\" is out of range", value
);
745 op
->values
[j
].value
= ll
;
748 if (parse_x32(f
+1, NULL
, &ll
) <= 0)
749 parse_err("Invalid mask \"%s\"", f
+1);
750 if (ll
> lim
&& ll
< ~0U - lim
)
751 parse_err("Mask \"%s\" is out of range", f
+1);
752 op
->values
[j
].mask
= ll
;
753 op
->values
[j
].value
&= ll
;
756 op
->values
[j
].mask
= ~0U;
761 static struct group
*new_group(void)
763 struct group
*g
= xmalloc(sizeof(*g
));
765 memset(g
, 0, sizeof(*g
));
766 pci_filter_init(pacc
, &g
->filter
);
767 g
->last_op
= &g
->first_op
;
770 last_group
= &g
->next
;
774 static void parse_ops(int argc
, char **argv
, int i
)
776 struct group
*group
= NULL
;
784 if (!group
|| group
->first_op
)
786 i
= parse_filter(argc
, argv
, i
-1, group
);
791 parse_err("Filter specification expected");
796 parse_err("No operation specified");
800 main(int argc
, char **argv
)
806 i
= parse_options(argc
, argv
);
810 parse_ops(argc
, argv
, i
);