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
,
73 {"ASUS\0\0", "P2B-S ", 0, ACPI_SIG_DSDT
, all_versions
,
74 "Bogus PCI routing", 1},
79 #if CONFIG_ACPI_BLACKLIST_YEAR
81 static int __init
blacklist_by_year(void)
83 int year
= dmi_get_year(DMI_BIOS_DATE
);
84 /* Doesn't exist? Likely an old system */
86 printk(KERN_ERR PREFIX
"no DMI BIOS year, "
87 "acpi=force is required to enable ACPI\n" );
90 /* 0? Likely a buggy new BIOS */
92 printk(KERN_ERR PREFIX
"DMI BIOS year==0, "
93 "assuming ACPI-capable machine\n" );
96 if (year
< CONFIG_ACPI_BLACKLIST_YEAR
) {
97 printk(KERN_ERR PREFIX
"BIOS age (%d) fails cutoff (%d), "
98 "acpi=force is required to enable ACPI\n",
99 year
, CONFIG_ACPI_BLACKLIST_YEAR
);
105 static inline int blacklist_by_year(void)
111 int __init
acpi_blacklisted(void)
115 struct acpi_table_header table_header
;
117 while (acpi_blacklist
[i
].oem_id
[0] != '\0') {
118 if (acpi_get_table_header(acpi_blacklist
[i
].table
, 0, &table_header
)) {
123 if (strncmp(acpi_blacklist
[i
].oem_id
, table_header
.oem_id
, 6)) {
129 (acpi_blacklist
[i
].oem_table_id
, table_header
.oem_table_id
,
135 if ((acpi_blacklist
[i
].oem_revision_predicate
== all_versions
)
136 || (acpi_blacklist
[i
].oem_revision_predicate
==
138 && table_header
.oem_revision
<=
139 acpi_blacklist
[i
].oem_revision
)
140 || (acpi_blacklist
[i
].oem_revision_predicate
==
141 greater_than_or_equal
142 && table_header
.oem_revision
>=
143 acpi_blacklist
[i
].oem_revision
)
144 || (acpi_blacklist
[i
].oem_revision_predicate
== equal
145 && table_header
.oem_revision
==
146 acpi_blacklist
[i
].oem_revision
)) {
148 printk(KERN_ERR PREFIX
149 "Vendor \"%6.6s\" System \"%8.8s\" "
150 "Revision 0x%x has a known ACPI BIOS problem.\n",
151 acpi_blacklist
[i
].oem_id
,
152 acpi_blacklist
[i
].oem_table_id
,
153 acpi_blacklist
[i
].oem_revision
);
155 printk(KERN_ERR PREFIX
156 "Reason: %s. This is a %s error\n",
157 acpi_blacklist
[i
].reason
,
159 is_critical_error
? "non-recoverable" :
162 blacklisted
= acpi_blacklist
[i
].is_critical_error
;
169 blacklisted
+= blacklist_by_year();
171 dmi_check_system(acpi_osi_dmi_table
);
176 static int __init
dmi_enable_osi_linux(const struct dmi_system_id
*d
)
178 acpi_dmi_osi_linux(1, d
); /* enable */
181 static int __init
dmi_disable_osi_linux(const struct dmi_system_id
*d
)
183 acpi_dmi_osi_linux(0, d
); /* disable */
186 static int __init
dmi_unknown_osi_linux(const struct dmi_system_id
*d
)
188 acpi_dmi_osi_linux(-1, d
); /* unknown */
193 * Most BIOS that invoke OSI(Linux) do nothing with it.
194 * But some cause Linux to break.
195 * Only a couple use it to make Linux run better.
197 * Thus, Linux should continue to disable OSI(Linux) by default,
198 * should continue to discourage BIOS writers from using it, and
199 * should whitelist the few existing systems that require it.
201 * If it appears clear a vendor isn't using OSI(Linux)
202 * for anything constructive, blacklist them by name to disable
203 * unnecessary dmesg warnings on all of their products.
206 static struct dmi_system_id acpi_osi_dmi_table
[] __initdata
= {
208 * Disable OSI(Linux) warnings on all "Acer, inc."
210 * _OSI(Linux) disables the latest Windows BIOS code:
211 * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3100"),
212 * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5050"),
213 * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"),
214 * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5580"),
215 * DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 3010"),
216 * _OSI(Linux) effect unknown:
217 * DMI_MATCH(DMI_PRODUCT_NAME, "Ferrari 5000"),
220 * note that dmi_check_system() uses strstr()
221 * to match sub-strings rather than !strcmp(),
222 * so "Acer" below matches "Acer, inc." above.
225 * Disable OSI(Linux) warnings on all "Acer"
227 * _OSI(Linux) effect unknown:
228 * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5315"),
229 * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"),
230 * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 7720Z"),
231 * DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 5520"),
232 * DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 6460"),
233 * DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 7510"),
234 * DMI_MATCH(DMI_PRODUCT_NAME, "Extensa 5220"),
237 .callback
= dmi_unknown_osi_linux
,
240 DMI_MATCH(DMI_SYS_VENDOR
, "Acer"),
244 * Disable OSI(Linux) warnings on all "Apple Computer, Inc."
246 * _OSI(Linux) confirmed to be a NOP:
247 * DMI_MATCH(DMI_PRODUCT_NAME, "MacBook1,1"),
248 * DMI_MATCH(DMI_PRODUCT_NAME, "MacBook2,1"),
249 * DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro2,2"),
250 * _OSI(Linux) effect unknown:
251 * DMI_MATCH(DMI_PRODUCT_NAME, "MacPro2,1"),
252 * DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro1,1"),
253 * DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro3,1"),
256 .callback
= dmi_disable_osi_linux
,
259 DMI_MATCH(DMI_SYS_VENDOR
, "Apple Computer, Inc."),
263 * Disable OSI(Linux) warnings on all "BenQ"
265 * _OSI(Linux) confirmed to be a NOP:
266 * DMI_MATCH(DMI_PRODUCT_NAME, "Joybook S31"),
269 .callback
= dmi_disable_osi_linux
,
272 DMI_MATCH(DMI_SYS_VENDOR
, "BenQ"),
276 * Disable OSI(Linux) warnings on all "Clevo Co."
278 * _OSI(Linux) confirmed to be a NOP:
279 * DMI_MATCH(DMI_PRODUCT_NAME, "M570RU"),
282 .callback
= dmi_disable_osi_linux
,
285 DMI_MATCH(DMI_SYS_VENDOR
, "Clevo Co."),
289 * Disable OSI(Linux) warnings on all "COMPAL"
291 * _OSI(Linux) confirmed to be a NOP:
292 * DMI_MATCH(DMI_BOARD_NAME, "HEL8X"),
293 * _OSI(Linux) unknown effect:
294 * DMI_MATCH(DMI_BOARD_NAME, "IFL91"),
297 .callback
= dmi_unknown_osi_linux
,
300 DMI_MATCH(DMI_BIOS_VENDOR
, "COMPAL"),
303 { /* OSI(Linux) touches USB, unknown side-effect */
304 .callback
= dmi_disable_osi_linux
,
305 .ident
= "Dell Dimension 5150",
307 DMI_MATCH(DMI_SYS_VENDOR
, "Dell Inc."),
308 DMI_MATCH(DMI_PRODUCT_NAME
, "Dell DM051"),
311 { /* OSI(Linux) is a NOP */
312 .callback
= dmi_disable_osi_linux
,
315 DMI_MATCH(DMI_SYS_VENDOR
, "Dell Inc."),
316 DMI_MATCH(DMI_PRODUCT_NAME
, "Inspiron 1501"),
319 { /* OSI(Linux) effect unknown */
320 .callback
= dmi_unknown_osi_linux
,
323 DMI_MATCH(DMI_SYS_VENDOR
, "Dell Inc."),
324 DMI_MATCH(DMI_PRODUCT_NAME
, "Latitude D830"),
327 { /* OSI(Linux) effect unknown */
328 .callback
= dmi_unknown_osi_linux
,
331 DMI_MATCH(DMI_SYS_VENDOR
, "Dell Inc."),
332 DMI_MATCH(DMI_PRODUCT_NAME
, "OptiPlex GX620"),
335 { /* OSI(Linux) effect unknown */
336 .callback
= dmi_unknown_osi_linux
,
339 DMI_MATCH(DMI_SYS_VENDOR
, "Dell Inc."),
340 DMI_MATCH(DMI_PRODUCT_NAME
, "PowerEdge 1900"),
343 { /* OSI(Linux) touches USB */
344 .callback
= dmi_disable_osi_linux
,
347 DMI_MATCH(DMI_SYS_VENDOR
, "Dell Inc."),
348 DMI_MATCH(DMI_PRODUCT_NAME
, "Precision WorkStation 390"),
351 { /* OSI(Linux) is a NOP */
352 .callback
= dmi_disable_osi_linux
,
353 .ident
= "Dell Vostro 1000",
355 DMI_MATCH(DMI_SYS_VENDOR
, "Dell Inc."),
356 DMI_MATCH(DMI_PRODUCT_NAME
, "Vostro 1000"),
359 { /* OSI(Linux) effect unknown */
360 .callback
= dmi_unknown_osi_linux
,
363 DMI_MATCH(DMI_SYS_VENDOR
, "Dell Inc."),
364 DMI_MATCH(DMI_PRODUCT_NAME
, "PowerEdge SC440"),
367 { /* OSI(Linux) effect unknown */
368 .callback
= dmi_unknown_osi_linux
,
369 .ident
= "Dialogue Flybook V5",
371 DMI_MATCH(DMI_SYS_VENDOR
, "Dialogue Technology Corporation"),
372 DMI_MATCH(DMI_PRODUCT_NAME
, "Flybook V5"),
376 * Disable OSI(Linux) warnings on all "FUJITSU SIEMENS"
378 * _OSI(Linux) disables latest Windows BIOS code:
379 * DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pa 2510"),
380 * _OSI(Linux) confirmed to be a NOP:
381 * DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pi 1536"),
382 * DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pi 1556"),
383 * DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 1546"),
384 * _OSI(Linux) unknown effect:
385 * DMI_MATCH(DMI_PRODUCT_NAME, "Amilo M1425"),
386 * DMI_MATCH(DMI_PRODUCT_NAME, "Amilo Si 1520"),
387 * DMI_MATCH(DMI_PRODUCT_NAME, "ESPRIMO Mobile V5505"),
390 .callback
= dmi_disable_osi_linux
,
391 .ident
= "Fujitsu Siemens",
393 DMI_MATCH(DMI_SYS_VENDOR
, "FUJITSU SIEMENS"),
397 * Disable OSI(Linux) warnings on all "Hewlett-Packard"
399 * _OSI(Linux) confirmed to be a NOP:
400 * .ident = "HP Pavilion tx 1000"
401 * DMI_MATCH(DMI_BOARD_NAME, "30BF"),
402 * .ident = "HP Pavilion dv2000"
403 * DMI_MATCH(DMI_BOARD_NAME, "30B5"),
404 * .ident = "HP Pavilion dv5000",
405 * DMI_MATCH(DMI_BOARD_NAME, "30A7"),
406 * .ident = "HP Pavilion dv6300 30BC",
407 * DMI_MATCH(DMI_BOARD_NAME, "30BC"),
408 * .ident = "HP Pavilion dv6000",
409 * DMI_MATCH(DMI_BOARD_NAME, "30B7"),
410 * DMI_MATCH(DMI_BOARD_NAME, "30B8"),
411 * .ident = "HP Pavilion dv9000",
412 * DMI_MATCH(DMI_BOARD_NAME, "30B9"),
413 * .ident = "HP Pavilion dv9500",
414 * DMI_MATCH(DMI_BOARD_NAME, "30CB"),
415 * .ident = "HP/Compaq Presario C500",
416 * DMI_MATCH(DMI_BOARD_NAME, "30C6"),
417 * .ident = "HP/Compaq Presario F500",
418 * DMI_MATCH(DMI_BOARD_NAME, "30D3"),
419 * _OSI(Linux) unknown effect:
420 * .ident = "HP Pavilion dv6500",
421 * DMI_MATCH(DMI_BOARD_NAME, "30D0"),
424 .callback
= dmi_disable_osi_linux
,
425 .ident
= "Hewlett-Packard",
427 DMI_MATCH(DMI_SYS_VENDOR
, "Hewlett-Packard"),
431 * Lenovo has a mix of systems OSI(Linux) situations
432 * and thus we can not wildcard the vendor.
434 * _OSI(Linux) helps sound
435 * DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad R61"),
436 * DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T61"),
437 * _OSI(Linux) is a NOP:
438 * DMI_MATCH(DMI_PRODUCT_VERSION, "3000 N100"),
441 .callback
= dmi_enable_osi_linux
,
442 .ident
= "Lenovo ThinkPad R61",
444 DMI_MATCH(DMI_SYS_VENDOR
, "LENOVO"),
445 DMI_MATCH(DMI_PRODUCT_VERSION
, "ThinkPad R61"),
449 .callback
= dmi_enable_osi_linux
,
450 .ident
= "Lenovo ThinkPad T61",
452 DMI_MATCH(DMI_SYS_VENDOR
, "LENOVO"),
453 DMI_MATCH(DMI_PRODUCT_VERSION
, "ThinkPad T61"),
457 .callback
= dmi_unknown_osi_linux
,
458 .ident
= "Lenovo 3000 V100",
460 DMI_MATCH(DMI_SYS_VENDOR
, "LENOVO"),
461 DMI_MATCH(DMI_PRODUCT_VERSION
, "LENOVO3000 V100"),
465 .callback
= dmi_disable_osi_linux
,
466 .ident
= "Lenovo 3000 N100",
468 DMI_MATCH(DMI_SYS_VENDOR
, "LENOVO"),
469 DMI_MATCH(DMI_PRODUCT_VERSION
, "3000 N100"),
473 * Disable OSI(Linux) warnings on all "LG Electronics"
475 * _OSI(Linux) confirmed to be a NOP:
476 * DMI_MATCH(DMI_PRODUCT_NAME, "P1-J150B"),
477 * with DMI_MATCH(DMI_BOARD_NAME, "ROCKY"),
480 * DMI_MATCH(DMI_PRODUCT_NAME, "S1-MDGDG"),
481 * with DMI_MATCH(DMI_BOARD_NAME, "ROCKY"),
484 .callback
= dmi_disable_osi_linux
,
487 DMI_MATCH(DMI_SYS_VENDOR
, "LG Electronics"),
490 /* NEC - OSI(Linux) effect unknown */
492 .callback
= dmi_unknown_osi_linux
,
493 .ident
= "NEC VERSA M360",
495 DMI_MATCH(DMI_SYS_VENDOR
, "NEC Computers SAS"),
496 DMI_MATCH(DMI_PRODUCT_NAME
, "NEC VERSA M360"),
500 * Disable OSI(Linux) warnings on all "Samsung Electronics"
502 * OSI(Linux) disables PNP0C32 and other BIOS code for Windows:
503 * DMI_MATCH(DMI_PRODUCT_NAME, "R40P/R41P"),
504 * DMI_MATCH(DMI_PRODUCT_NAME, "R59P/R60P/R61P"),
507 .callback
= dmi_disable_osi_linux
,
510 DMI_MATCH(DMI_SYS_VENDOR
, "SAMSUNG ELECTRONICS CO., LTD."),
514 * Disable OSI(Linux) warnings on all "Sony Corporation"
516 * _OSI(Linux) is a NOP:
517 * DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SZ650N"),
518 * DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SZ38GP_C"),
519 * DMI_MATCH(DMI_PRODUCT_NAME, "VGN-TZ21MN_N"),
520 * _OSI(Linux) unknown effect:
521 * DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FZ11M"),
524 .callback
= dmi_unknown_osi_linux
,
527 DMI_MATCH(DMI_SYS_VENDOR
, "Sony Corporation"),
531 * Disable OSI(Linux) warnings on all "TOSHIBA"
533 * _OSI(Linux) breaks sound (bugzilla 7787):
534 * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P100"),
535 * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P105"),
536 * _OSI(Linux) is a NOP:
537 * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite A100"),
538 * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite A210"),
539 * _OSI(Linux) unknown effect:
540 * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite A135"),
541 * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite A200"),
542 * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P205"),
543 * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite U305"),
546 .callback
= dmi_disable_osi_linux
,
549 DMI_MATCH(DMI_SYS_VENDOR
, "TOSHIBA"),
555 #endif /* CONFIG_DMI */