4 * Check to see if the given machine has a known bad ACPI BIOS
5 * or if the BIOS is too old.
6 * Check given machine against acpi_osi_dmi_table[].
8 * Copyright (C) 2004 Len Brown <len.brown@intel.com>
9 * Copyright (C) 2002 Andy Grover <andrew.grover@intel.com>
11 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or (at
16 * your option) any later version.
18 * This program is distributed in the hope that it will be useful, but
19 * WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
21 * General Public License for more details.
23 * You should have received a copy of the GNU General Public License along
24 * with this program; if not, write to the Free Software Foundation, Inc.,
25 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
27 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
30 #include <linux/kernel.h>
31 #include <linux/module.h>
32 #include <linux/init.h>
33 #include <linux/acpi.h>
34 #include <acpi/acpi_bus.h>
35 #include <linux/dmi.h>
37 enum acpi_blacklist_predicates
{
41 greater_than_or_equal
,
44 struct acpi_blacklist_item
{
49 enum acpi_blacklist_predicates oem_revision_predicate
;
51 u32 is_critical_error
;
54 static struct dmi_system_id acpi_osi_dmi_table
[] __initdata
;
57 * POLICY: If *anything* doesn't work, put it on the blacklist.
58 * If they are critical errors, mark it critical, and abort driver load.
60 static struct acpi_blacklist_item acpi_blacklist
[] __initdata
= {
61 /* Compaq Presario 1700 */
62 {"PTLTD ", " DSDT ", 0x06040000, ACPI_SIG_DSDT
, less_than_or_equal
,
63 "Multiple problems", 1},
64 /* Sony FX120, FX140, FX150? */
65 {"SONY ", "U0 ", 0x20010313, ACPI_SIG_DSDT
, less_than_or_equal
,
66 "ACPI driver problem", 1},
67 /* Compaq Presario 800, Insyde BIOS */
68 {"INT440", "SYSFexxx", 0x00001001, ACPI_SIG_DSDT
, less_than_or_equal
,
69 "Does not use _REG to protect EC OpRegions", 1},
70 /* IBM 600E - _ADR should return 7, but it returns 1 */
71 {"IBM ", "TP600E ", 0x00000105, ACPI_SIG_DSDT
, less_than_or_equal
,
77 #if CONFIG_ACPI_BLACKLIST_YEAR
79 static int __init
blacklist_by_year(void)
81 int year
= dmi_get_year(DMI_BIOS_DATE
);
82 /* Doesn't exist? Likely an old system */
84 printk(KERN_ERR PREFIX
"no DMI BIOS year, "
85 "acpi=force is required to enable ACPI\n" );
88 /* 0? Likely a buggy new BIOS */
90 printk(KERN_ERR PREFIX
"DMI BIOS year==0, "
91 "assuming ACPI-capable machine\n" );
94 if (year
< CONFIG_ACPI_BLACKLIST_YEAR
) {
95 printk(KERN_ERR PREFIX
"BIOS age (%d) fails cutoff (%d), "
96 "acpi=force is required to enable ACPI\n",
97 year
, CONFIG_ACPI_BLACKLIST_YEAR
);
103 static inline int blacklist_by_year(void)
109 int __init
acpi_blacklisted(void)
113 struct acpi_table_header table_header
;
115 while (acpi_blacklist
[i
].oem_id
[0] != '\0') {
116 if (acpi_get_table_header(acpi_blacklist
[i
].table
, 0, &table_header
)) {
121 if (strncmp(acpi_blacklist
[i
].oem_id
, table_header
.oem_id
, 6)) {
127 (acpi_blacklist
[i
].oem_table_id
, table_header
.oem_table_id
,
133 if ((acpi_blacklist
[i
].oem_revision_predicate
== all_versions
)
134 || (acpi_blacklist
[i
].oem_revision_predicate
==
136 && table_header
.oem_revision
<=
137 acpi_blacklist
[i
].oem_revision
)
138 || (acpi_blacklist
[i
].oem_revision_predicate
==
139 greater_than_or_equal
140 && table_header
.oem_revision
>=
141 acpi_blacklist
[i
].oem_revision
)
142 || (acpi_blacklist
[i
].oem_revision_predicate
== equal
143 && table_header
.oem_revision
==
144 acpi_blacklist
[i
].oem_revision
)) {
146 printk(KERN_ERR PREFIX
147 "Vendor \"%6.6s\" System \"%8.8s\" "
148 "Revision 0x%x has a known ACPI BIOS problem.\n",
149 acpi_blacklist
[i
].oem_id
,
150 acpi_blacklist
[i
].oem_table_id
,
151 acpi_blacklist
[i
].oem_revision
);
153 printk(KERN_ERR PREFIX
154 "Reason: %s. This is a %s error\n",
155 acpi_blacklist
[i
].reason
,
157 is_critical_error
? "non-recoverable" :
160 blacklisted
= acpi_blacklist
[i
].is_critical_error
;
167 blacklisted
+= blacklist_by_year();
169 dmi_check_system(acpi_osi_dmi_table
);
174 static int __init
dmi_enable_osi_linux(const struct dmi_system_id
*d
)
176 acpi_dmi_osi_linux(1, d
); /* enable */
179 static int __init
dmi_disable_osi_linux(const struct dmi_system_id
*d
)
181 acpi_dmi_osi_linux(0, d
); /* disable */
184 static int __init
dmi_unknown_osi_linux(const struct dmi_system_id
*d
)
186 acpi_dmi_osi_linux(-1, d
); /* unknown */
191 * Most BIOS that invoke OSI(Linux) do nothing with it.
192 * But some cause Linux to break.
193 * Only a couple use it to make Linux run better.
195 * Thus, Linux should continue to disable OSI(Linux) by default,
196 * should continue to discourage BIOS writers from using it, and
197 * should whitelist the few existing systems that require it.
199 * If it appears clear a vendor isn't using OSI(Linux)
200 * for anything constructive, blacklist them by name to disable
201 * unnecessary dmesg warnings on all of their products.
204 static struct dmi_system_id acpi_osi_dmi_table
[] __initdata
= {
206 * Disable OSI(Linux) warnings on all "Acer, inc."
208 * _OSI(Linux) disables the latest Windows BIOS code:
209 * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3100"),
210 * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5050"),
211 * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"),
212 * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5580"),
213 * DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 3010"),
214 * _OSI(Linux) effect unknown:
215 * DMI_MATCH(DMI_PRODUCT_NAME, "Ferrari 5000"),
218 * note that dmi_check_system() uses strstr()
219 * to match sub-strings rather than !strcmp(),
220 * so "Acer" below matches "Acer, inc." above.
223 * Disable OSI(Linux) warnings on all "Acer"
225 * _OSI(Linux) effect unknown:
226 * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"),
227 * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 7720Z"),
228 * DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 5520"),
229 * DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 6460"),
230 * DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 7510"),
231 * DMI_MATCH(DMI_PRODUCT_NAME, "Extensa 5220"),
233 * _OSI(Linux) is a NOP:
234 * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5315"),
237 .callback
= dmi_disable_osi_linux
,
240 DMI_MATCH(DMI_SYS_VENDOR
, "Acer"),
244 * Disable OSI(Linux) warnings on all "Apple Computer, Inc."
245 * Disable OSI(Linux) warnings on all "Apple Inc."
247 * _OSI(Linux) confirmed to be a NOP:
248 * DMI_MATCH(DMI_PRODUCT_NAME, "MacBook1,1"),
249 * DMI_MATCH(DMI_PRODUCT_NAME, "MacBook2,1"),
250 * DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro2,2"),
251 * DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro3,1"),
252 * _OSI(Linux) effect unknown:
253 * DMI_MATCH(DMI_PRODUCT_NAME, "MacPro2,1"),
254 * DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro1,1"),
257 .callback
= dmi_disable_osi_linux
,
260 DMI_MATCH(DMI_SYS_VENDOR
, "Apple"),
264 * Disable OSI(Linux) warnings on all "BenQ"
266 * _OSI(Linux) confirmed to be a NOP:
267 * DMI_MATCH(DMI_PRODUCT_NAME, "Joybook S31"),
270 .callback
= dmi_disable_osi_linux
,
273 DMI_MATCH(DMI_SYS_VENDOR
, "BenQ"),
277 * Disable OSI(Linux) warnings on all "Clevo Co."
279 * _OSI(Linux) confirmed to be a NOP:
280 * DMI_MATCH(DMI_PRODUCT_NAME, "M570RU"),
283 .callback
= dmi_disable_osi_linux
,
286 DMI_MATCH(DMI_SYS_VENDOR
, "Clevo Co."),
290 * Disable OSI(Linux) warnings on all "COMPAL"
292 * _OSI(Linux) confirmed to be a NOP:
293 * DMI_MATCH(DMI_BOARD_NAME, "HEL8X"),
294 * _OSI(Linux) unknown effect:
295 * DMI_MATCH(DMI_BOARD_NAME, "IFL91"),
298 .callback
= dmi_disable_osi_linux
,
301 DMI_MATCH(DMI_BIOS_VENDOR
, "COMPAL"),
304 { /* OSI(Linux) touches USB, unknown side-effect */
305 .callback
= dmi_disable_osi_linux
,
306 .ident
= "Dell Dimension 5150",
308 DMI_MATCH(DMI_SYS_VENDOR
, "Dell Inc."),
309 DMI_MATCH(DMI_PRODUCT_NAME
, "Dell DM051"),
312 { /* OSI(Linux) is a NOP */
313 .callback
= dmi_disable_osi_linux
,
314 .ident
= "Dell i1501",
316 DMI_MATCH(DMI_SYS_VENDOR
, "Dell Inc."),
317 DMI_MATCH(DMI_PRODUCT_NAME
, "Inspiron 1501"),
320 { /* OSI(Linux) effect unknown */
321 .callback
= dmi_unknown_osi_linux
,
322 .ident
= "Dell Latitude D830",
324 DMI_MATCH(DMI_SYS_VENDOR
, "Dell Inc."),
325 DMI_MATCH(DMI_PRODUCT_NAME
, "Latitude D830"),
328 { /* OSI(Linux) effect unknown */
329 .callback
= dmi_unknown_osi_linux
,
330 .ident
= "Dell OP GX620",
332 DMI_MATCH(DMI_SYS_VENDOR
, "Dell Inc."),
333 DMI_MATCH(DMI_PRODUCT_NAME
, "OptiPlex GX620"),
336 { /* OSI(Linux) effect unknown */
337 .callback
= dmi_unknown_osi_linux
,
338 .ident
= "Dell PE 1900",
340 DMI_MATCH(DMI_SYS_VENDOR
, "Dell Inc."),
341 DMI_MATCH(DMI_PRODUCT_NAME
, "PowerEdge 1900"),
344 { /* OSI(Linux) is a NOP */
345 .callback
= dmi_disable_osi_linux
,
346 .ident
= "Dell PE R200",
348 DMI_MATCH(DMI_SYS_VENDOR
, "Dell Inc."),
349 DMI_MATCH(DMI_PRODUCT_NAME
, "PowerEdge R200"),
352 { /* OSI(Linux) touches USB */
353 .callback
= dmi_disable_osi_linux
,
354 .ident
= "Dell PR 390",
356 DMI_MATCH(DMI_SYS_VENDOR
, "Dell Inc."),
357 DMI_MATCH(DMI_PRODUCT_NAME
, "Precision WorkStation 390"),
360 { /* OSI(Linux) is a NOP */
361 .callback
= dmi_disable_osi_linux
,
362 .ident
= "Dell Vostro 1000",
364 DMI_MATCH(DMI_SYS_VENDOR
, "Dell Inc."),
365 DMI_MATCH(DMI_PRODUCT_NAME
, "Vostro 1000"),
368 { /* OSI(Linux) effect unknown */
369 .callback
= dmi_unknown_osi_linux
,
370 .ident
= "Dell PE SC440",
372 DMI_MATCH(DMI_SYS_VENDOR
, "Dell Inc."),
373 DMI_MATCH(DMI_PRODUCT_NAME
, "PowerEdge SC440"),
376 { /* OSI(Linux) effect unknown */
377 .callback
= dmi_unknown_osi_linux
,
378 .ident
= "Dialogue Flybook V5",
380 DMI_MATCH(DMI_SYS_VENDOR
, "Dialogue Technology Corporation"),
381 DMI_MATCH(DMI_PRODUCT_NAME
, "Flybook V5"),
385 * Disable OSI(Linux) warnings on all "FUJITSU SIEMENS"
387 * _OSI(Linux) disables latest Windows BIOS code:
388 * DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pa 2510"),
389 * _OSI(Linux) confirmed to be a NOP:
390 * DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pi 1536"),
391 * DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pi 1556"),
392 * DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 1546"),
393 * _OSI(Linux) unknown effect:
394 * DMI_MATCH(DMI_PRODUCT_NAME, "Amilo M1425"),
395 * DMI_MATCH(DMI_PRODUCT_NAME, "Amilo Si 1520"),
396 * DMI_MATCH(DMI_PRODUCT_NAME, "ESPRIMO Mobile V5505"),
399 .callback
= dmi_disable_osi_linux
,
400 .ident
= "Fujitsu Siemens",
402 DMI_MATCH(DMI_SYS_VENDOR
, "FUJITSU SIEMENS"),
406 * Disable OSI(Linux) warnings on all "Hewlett-Packard"
408 * _OSI(Linux) confirmed to be a NOP:
409 * .ident = "HP Pavilion tx 1000"
410 * DMI_MATCH(DMI_BOARD_NAME, "30BF"),
411 * .ident = "HP Pavilion dv2000"
412 * DMI_MATCH(DMI_BOARD_NAME, "30B5"),
413 * .ident = "HP Pavilion dv5000",
414 * DMI_MATCH(DMI_BOARD_NAME, "30A7"),
415 * .ident = "HP Pavilion dv6300 30BC",
416 * DMI_MATCH(DMI_BOARD_NAME, "30BC"),
417 * .ident = "HP Pavilion dv6000",
418 * DMI_MATCH(DMI_BOARD_NAME, "30B7"),
419 * DMI_MATCH(DMI_BOARD_NAME, "30B8"),
420 * .ident = "HP Pavilion dv9000",
421 * DMI_MATCH(DMI_BOARD_NAME, "30B9"),
422 * .ident = "HP Pavilion dv9500",
423 * DMI_MATCH(DMI_BOARD_NAME, "30CB"),
424 * .ident = "HP/Compaq Presario C500",
425 * DMI_MATCH(DMI_BOARD_NAME, "30C6"),
426 * .ident = "HP/Compaq Presario F500",
427 * DMI_MATCH(DMI_BOARD_NAME, "30D3"),
428 * _OSI(Linux) unknown effect:
429 * .ident = "HP Pavilion dv6500",
430 * DMI_MATCH(DMI_BOARD_NAME, "30D0"),
433 .callback
= dmi_disable_osi_linux
,
434 .ident
= "Hewlett-Packard",
436 DMI_MATCH(DMI_SYS_VENDOR
, "Hewlett-Packard"),
440 * Lenovo has a mix of systems OSI(Linux) situations
441 * and thus we can not wildcard the vendor.
443 * _OSI(Linux) helps sound
444 * DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad R61"),
445 * DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T61"),
446 * _OSI(Linux) is a NOP:
447 * DMI_MATCH(DMI_PRODUCT_VERSION, "3000 N100"),
450 .callback
= dmi_enable_osi_linux
,
451 .ident
= "Lenovo ThinkPad R61",
453 DMI_MATCH(DMI_SYS_VENDOR
, "LENOVO"),
454 DMI_MATCH(DMI_PRODUCT_VERSION
, "ThinkPad R61"),
458 .callback
= dmi_enable_osi_linux
,
459 .ident
= "Lenovo ThinkPad T61",
461 DMI_MATCH(DMI_SYS_VENDOR
, "LENOVO"),
462 DMI_MATCH(DMI_PRODUCT_VERSION
, "ThinkPad T61"),
466 .callback
= dmi_unknown_osi_linux
,
467 .ident
= "Lenovo 3000 V100",
469 DMI_MATCH(DMI_SYS_VENDOR
, "LENOVO"),
470 DMI_MATCH(DMI_PRODUCT_VERSION
, "LENOVO3000 V100"),
474 .callback
= dmi_disable_osi_linux
,
475 .ident
= "Lenovo 3000 N100",
477 DMI_MATCH(DMI_SYS_VENDOR
, "LENOVO"),
478 DMI_MATCH(DMI_PRODUCT_VERSION
, "3000 N100"),
482 * Disable OSI(Linux) warnings on all "LG Electronics"
484 * _OSI(Linux) confirmed to be a NOP:
485 * DMI_MATCH(DMI_PRODUCT_NAME, "P1-J150B"),
486 * with DMI_MATCH(DMI_BOARD_NAME, "ROCKY"),
489 * DMI_MATCH(DMI_PRODUCT_NAME, "S1-MDGDG"),
490 * with DMI_MATCH(DMI_BOARD_NAME, "ROCKY"),
493 .callback
= dmi_disable_osi_linux
,
496 DMI_MATCH(DMI_SYS_VENDOR
, "LG Electronics"),
499 /* NEC - OSI(Linux) effect unknown */
501 .callback
= dmi_unknown_osi_linux
,
502 .ident
= "NEC VERSA M360",
504 DMI_MATCH(DMI_SYS_VENDOR
, "NEC Computers SAS"),
505 DMI_MATCH(DMI_PRODUCT_NAME
, "NEC VERSA M360"),
509 * Disable OSI(Linux) warnings on all "Samsung Electronics"
511 * OSI(Linux) disables PNP0C32 and other BIOS code for Windows:
512 * DMI_MATCH(DMI_PRODUCT_NAME, "R40P/R41P"),
513 * DMI_MATCH(DMI_PRODUCT_NAME, "R59P/R60P/R61P"),
516 .callback
= dmi_disable_osi_linux
,
519 DMI_MATCH(DMI_SYS_VENDOR
, "SAMSUNG ELECTRONICS CO., LTD."),
523 * Disable OSI(Linux) warnings on all "Sony Corporation"
525 * _OSI(Linux) is a NOP:
526 * DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SZ650N"),
527 * DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SZ38GP_C"),
528 * DMI_MATCH(DMI_PRODUCT_NAME, "VGN-TZ21MN_N"),
529 * _OSI(Linux) unknown effect:
530 * DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FZ11M"),
533 .callback
= dmi_disable_osi_linux
,
536 DMI_MATCH(DMI_SYS_VENDOR
, "Sony Corporation"),
540 * Disable OSI(Linux) warnings on all "TOSHIBA"
542 * _OSI(Linux) breaks sound (bugzilla 7787):
543 * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P100"),
544 * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P105"),
545 * _OSI(Linux) is a NOP:
546 * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite A100"),
547 * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite A210"),
548 * _OSI(Linux) unknown effect:
549 * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite A135"),
550 * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite A200"),
551 * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P205"),
552 * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite U305"),
555 .callback
= dmi_disable_osi_linux
,
558 DMI_MATCH(DMI_SYS_VENDOR
, "TOSHIBA"),
564 #endif /* CONFIG_DMI */