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 5050"),
210 * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5580"),
211 * DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 3010"),
212 * _OSI(Linux) effect unknown:
213 * DMI_MATCH(DMI_PRODUCT_NAME, "Ferrari 5000"),
216 .callback = dmi_disable_osi_linux,
217 .ident = "Acer, inc.",
219 DMI_MATCH(DMI_SYS_VENDOR, "Acer, inc."),
223 * Disable OSI(Linux) warnings on all "Acer"
225 * _OSI(Linux) effect unknown:
226 * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"),
227 * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"),
228 * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 7720Z"),
229 * DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 5520"),
230 * DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 6460"),
231 * DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 7510"),
232 * DMI_MATCH(DMI_PRODUCT_NAME, "Extensa 5220"),
235 .callback = dmi_unknown_osi_linux,
238 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
242 * Disable OSI(Linux) warnings on all "Apple Computer, Inc."
244 * _OSI(Linux) confirmed to be a NOP:
245 * DMI_MATCH(DMI_PRODUCT_NAME, "MacBook1,1"),
246 * DMI_MATCH(DMI_PRODUCT_NAME, "MacBook2,1"),
247 * DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro2,2"),
248 * _OSI(Linux) effect unknown:
249 * DMI_MATCH(DMI_PRODUCT_NAME, "MacPro2,1"),
250 * DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro1,1"),
251 * DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro3,1"),
254 .callback = dmi_disable_osi_linux,
257 DMI_MATCH(DMI_SYS_VENDOR, "Apple Computer, Inc."),
261 * Disable OSI(Linux) warnings on all "BenQ"
263 * _OSI(Linux) confirmed to be a NOP:
264 * DMI_MATCH(DMI_PRODUCT_NAME, "Joybook S31"),
267 .callback = dmi_disable_osi_linux,
270 DMI_MATCH(DMI_SYS_VENDOR, "BenQ"),
274 * Disable OSI(Linux) warnings on all "Clevo Co."
276 * _OSI(Linux) confirmed to be a NOP:
277 * DMI_MATCH(DMI_PRODUCT_NAME, "M570RU"),
280 .callback = dmi_disable_osi_linux,
283 DMI_MATCH(DMI_SYS_VENDOR, "Clevo Co."),
287 * Disable OSI(Linux) warnings on all "COMPAL"
289 * _OSI(Linux) confirmed to be a NOP:
290 * DMI_MATCH(DMI_BOARD_NAME, "HEL8X"),
291 * _OSI(Linux) unknown effect:
292 * DMI_MATCH(DMI_BOARD_NAME, "IFL91"),
295 .callback = dmi_unknown_osi_linux,
298 DMI_MATCH(DMI_BIOS_VENDOR, "COMPAL"),
301 { /* OSI(Linux) touches USB, breaks suspend to disk */
302 .callback = dmi_disable_osi_linux,
303 .ident = "Dell Dimension 5150",
305 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
306 DMI_MATCH(DMI_PRODUCT_NAME, "Dell DM051"),
309 { /* OSI(Linux) is a NOP */
310 .callback = dmi_disable_osi_linux,
313 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
314 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1501"),
317 { /* OSI(Linux) effect unknown */
318 .callback = dmi_unknown_osi_linux,
321 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
322 DMI_MATCH(DMI_PRODUCT_NAME, "Latitude D830"),
325 { /* OSI(Linux) effect unknown */
326 .callback = dmi_unknown_osi_linux,
329 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
330 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex GX620"),
333 { /* OSI(Linux) effect unknown */
334 .callback = dmi_unknown_osi_linux,
337 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
338 DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge 1900"),
341 { /* OSI(Linux) touches USB */
342 .callback = dmi_disable_osi_linux,
345 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
346 DMI_MATCH(DMI_PRODUCT_NAME, "Precision WorkStation 390"),
349 { /* OSI(Linux) is a NOP */
350 .callback = dmi_disable_osi_linux,
351 .ident = "Dell Vostro 1000",
353 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
354 DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 1000"),
357 { /* OSI(Linux) effect unknown */
358 .callback = dmi_unknown_osi_linux,
361 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
362 DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge SC440"),
365 { /* OSI(Linux) effect unknown */
366 .callback = dmi_unknown_osi_linux,
367 .ident = "Dialogue Flybook V5",
369 DMI_MATCH(DMI_SYS_VENDOR, "Dialogue Technology Corporation"),
370 DMI_MATCH(DMI_PRODUCT_NAME, "Flybook V5"),
374 * Disable OSI(Linux) warnings on all "FUJITSU SIEMENS"
376 * _OSI(Linux) disables latest Windows BIOS code:
377 * DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pa 2510"),
378 * _OSI(Linux) confirmed to be a NOP:
379 * DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pi 1536"),
380 * DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pi 1556"),
381 * DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 1546"),
382 * _OSI(Linux) unknown effect:
383 * DMI_MATCH(DMI_PRODUCT_NAME, "Amilo M1425"),
384 * DMI_MATCH(DMI_PRODUCT_NAME, "Amilo Si 1520"),
385 * DMI_MATCH(DMI_PRODUCT_NAME, "ESPRIMO Mobile V5505"),
388 .callback = dmi_disable_osi_linux,
389 .ident = "Fujitsu Siemens",
391 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
395 * Disable OSI(Linux) warnings on all "Hewlett-Packard"
397 * _OSI(Linux) confirmed to be a NOP:
398 * .ident = "HP Pavilion tx 1000"
399 * DMI_MATCH(DMI_BOARD_NAME, "30BF"),
400 * .ident = "HP Pavilion dv2000"
401 * DMI_MATCH(DMI_BOARD_NAME, "30B5"),
402 * .ident = "HP Pavilion dv5000",
403 * DMI_MATCH(DMI_BOARD_NAME, "30A7"),
404 * .ident = "HP Pavilion dv6300 30BC",
405 * DMI_MATCH(DMI_BOARD_NAME, "30BC"),
406 * .ident = "HP Pavilion dv6000",
407 * DMI_MATCH(DMI_BOARD_NAME, "30B7"),
408 * DMI_MATCH(DMI_BOARD_NAME, "30B8"),
409 * .ident = "HP Pavilion dv9000",
410 * DMI_MATCH(DMI_BOARD_NAME, "30B9"),
411 * .ident = "HP Pavilion dv9500",
412 * DMI_MATCH(DMI_BOARD_NAME, "30CB"),
413 * .ident = "HP/Compaq Presario C500",
414 * DMI_MATCH(DMI_BOARD_NAME, "30C6"),
415 * .ident = "HP/Compaq Presario F500",
416 * DMI_MATCH(DMI_BOARD_NAME, "30D3"),
417 * _OSI(Linux) unknown effect:
418 * .ident = "HP Pavilion dv6500",
419 * DMI_MATCH(DMI_BOARD_NAME, "30D0"),
422 .callback = dmi_disable_osi_linux,
423 .ident = "Hewlett-Packard",
425 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
429 * Lenovo has a mix of systems OSI(Linux) situations
430 * and thus we can not wildcard the vendor.
432 * _OSI(Linux) helps sound
433 * DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad R61"),
434 * DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T61"),
435 * _OSI(Linux) is a NOP:
436 * DMI_MATCH(DMI_PRODUCT_VERSION, "3000 N100"),
439 .callback = dmi_enable_osi_linux,
440 .ident = "Lenovo ThinkPad R61",
442 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
443 DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad R61"),
447 .callback = dmi_enable_osi_linux,
448 .ident = "Lenovo ThinkPad T61",
450 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
451 DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T61"),
455 .callback = dmi_unknown_osi_linux,
456 .ident = "Lenovo 3000 V100",
458 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
459 DMI_MATCH(DMI_PRODUCT_VERSION, "LENOVO3000 V100"),
463 .callback = dmi_disable_osi_linux,
464 .ident = "Lenovo 3000 N100",
466 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
467 DMI_MATCH(DMI_PRODUCT_VERSION, "3000 N100"),
471 * Disable OSI(Linux) warnings on all "LG Electronics"
473 * _OSI(Linux) confirmed to be a NOP:
474 * DMI_MATCH(DMI_PRODUCT_NAME, "P1-J150B"),
477 .callback = dmi_disable_osi_linux,
480 DMI_MATCH(DMI_SYS_VENDOR, "LG Electronics"),
483 /* NEC - OSI(Linux) effect unknown */
485 .callback = dmi_unknown_osi_linux,
486 .ident = "NEC VERSA M360",
488 DMI_MATCH(DMI_SYS_VENDOR, "NEC Computers SAS"),
489 DMI_MATCH(DMI_PRODUCT_NAME, "NEC VERSA M360"),
493 * Disable OSI(Linux) warnings on all "Samsung Electronics"
495 * OSI(Linux) disables PNP0C32 and other BIOS code for Windows:
496 * DMI_MATCH(DMI_PRODUCT_NAME, "R40P/R41P"),
497 * DMI_MATCH(DMI_PRODUCT_NAME, "R59P/R60P/R61P"),
500 .callback = dmi_disable_osi_linux,
503 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
507 * Disable OSI(Linux) warnings on all "Sony Corporation"
509 * _OSI(Linux) is a NOP:
510 * DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SZ650N"),
511 * DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SZ38GP_C"),
512 * DMI_MATCH(DMI_PRODUCT_NAME, "VGN-TZ21MN_N"),
513 * _OSI(Linux) unknown effect:
514 * DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FZ11M"),
517 .callback = dmi_unknown_osi_linux,
520 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
524 * Disable OSI(Linux) warnings on all "TOSHIBA"
526 * _OSI(Linux) breaks sound (bugzilla 7787):
527 * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P100"),
528 * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P105"),
529 * _OSI(Linux) is a NOP:
530 * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite A100"),
531 * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite A210"),
532 * _OSI(Linux) unknown effect:
533 * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite A135"),
534 * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite A200"),
535 * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P205"),
536 * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite U305"),
539 .callback = dmi_disable_osi_linux,
542 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
548 #endif /* CONFIG_DMI */