Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
[linux-2.6.git] / drivers / acpi / blacklist.c
1 /*
2  *  blacklist.c
3  *
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[].
7  *
8  *  Copyright (C) 2004 Len Brown <len.brown@intel.com>
9  *  Copyright (C) 2002 Andy Grover <andrew.grover@intel.com>
10  *
11  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
12  *
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.
17  *
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.
22  *
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.
26  *
27  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
28  */
29
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>
36
37 enum acpi_blacklist_predicates {
38         all_versions,
39         less_than_or_equal,
40         equal,
41         greater_than_or_equal,
42 };
43
44 struct acpi_blacklist_item {
45         char oem_id[7];
46         char oem_table_id[9];
47         u32 oem_revision;
48         char *table;
49         enum acpi_blacklist_predicates oem_revision_predicate;
50         char *reason;
51         u32 is_critical_error;
52 };
53
54 static struct dmi_system_id acpi_osi_dmi_table[] __initdata;
55
56 /*
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.
59  */
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,
72          "Incorrect _ADR", 1},
73         {"ASUS\0\0", "P2B-S   ", 0, ACPI_SIG_DSDT, all_versions,
74          "Bogus PCI routing", 1},
75
76         {""}
77 };
78
79 #if     CONFIG_ACPI_BLACKLIST_YEAR
80
81 static int __init blacklist_by_year(void)
82 {
83         int year = dmi_get_year(DMI_BIOS_DATE);
84         /* Doesn't exist? Likely an old system */
85         if (year == -1) {
86                 printk(KERN_ERR PREFIX "no DMI BIOS year, "
87                         "acpi=force is required to enable ACPI\n" );
88                 return 1;
89         }
90         /* 0? Likely a buggy new BIOS */
91         if (year == 0) {
92                 printk(KERN_ERR PREFIX "DMI BIOS year==0, "
93                         "assuming ACPI-capable machine\n" );
94                 return 0;
95         }
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);
100                 return 1;
101         }
102         return 0;
103 }
104 #else
105 static inline int blacklist_by_year(void)
106 {
107         return 0;
108 }
109 #endif
110
111 int __init acpi_blacklisted(void)
112 {
113         int i = 0;
114         int blacklisted = 0;
115         struct acpi_table_header table_header;
116
117         while (acpi_blacklist[i].oem_id[0] != '\0') {
118                 if (acpi_get_table_header(acpi_blacklist[i].table, 0, &table_header)) {
119                         i++;
120                         continue;
121                 }
122
123                 if (strncmp(acpi_blacklist[i].oem_id, table_header.oem_id, 6)) {
124                         i++;
125                         continue;
126                 }
127
128                 if (strncmp
129                     (acpi_blacklist[i].oem_table_id, table_header.oem_table_id,
130                      8)) {
131                         i++;
132                         continue;
133                 }
134
135                 if ((acpi_blacklist[i].oem_revision_predicate == all_versions)
136                     || (acpi_blacklist[i].oem_revision_predicate ==
137                         less_than_or_equal
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)) {
147
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);
154
155                         printk(KERN_ERR PREFIX
156                                "Reason: %s. This is a %s error\n",
157                                acpi_blacklist[i].reason,
158                                (acpi_blacklist[i].
159                                 is_critical_error ? "non-recoverable" :
160                                 "recoverable"));
161
162                         blacklisted = acpi_blacklist[i].is_critical_error;
163                         break;
164                 } else {
165                         i++;
166                 }
167         }
168
169         blacklisted += blacklist_by_year();
170
171         dmi_check_system(acpi_osi_dmi_table);
172
173         return blacklisted;
174 }
175 #ifdef CONFIG_DMI
176 static int __init dmi_enable_osi_linux(const struct dmi_system_id *d)
177 {
178         acpi_dmi_osi_linux(1, d);       /* enable */
179         return 0;
180 }
181 static int __init dmi_disable_osi_linux(const struct dmi_system_id *d)
182 {
183         acpi_dmi_osi_linux(0, d);       /* disable */
184         return 0;
185 }
186 static int __init dmi_unknown_osi_linux(const struct dmi_system_id *d)
187 {
188         acpi_dmi_osi_linux(-1, d);      /* unknown */
189         return 0;
190 }
191
192 /*
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.
196  *
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.
200  *
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.
204  */
205
206 static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
207         /*
208          * Disable OSI(Linux) warnings on all "Acer, inc."
209          *
210          * _OSI(Linux) disables the latest Windows BIOS code:
211          * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5050"),
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"),
216          */
217         {
218         .callback = dmi_disable_osi_linux,
219         .ident = "Acer, inc.",
220         .matches = {
221                      DMI_MATCH(DMI_SYS_VENDOR, "Acer, inc."),
222                 },
223         },
224         /*
225          * Disable OSI(Linux) warnings on all "Acer"
226          *
227          * _OSI(Linux) effect unknown:
228          * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"),
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"),
235          */
236         {
237         .callback = dmi_unknown_osi_linux,
238         .ident = "Acer",
239         .matches = {
240                      DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
241                 },
242         },
243         /*
244          * Disable OSI(Linux) warnings on all "Apple Computer, Inc."
245          *
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"),
254          */
255         {
256         .callback = dmi_disable_osi_linux,
257         .ident = "Apple",
258         .matches = {
259                      DMI_MATCH(DMI_SYS_VENDOR, "Apple Computer, Inc."),
260                 },
261         },
262         /*
263          * Disable OSI(Linux) warnings on all "BenQ"
264          *
265          * _OSI(Linux) confirmed to be a NOP:
266          * DMI_MATCH(DMI_PRODUCT_NAME, "Joybook S31"),
267          */
268         {
269         .callback = dmi_disable_osi_linux,
270         .ident = "BenQ",
271         .matches = {
272                      DMI_MATCH(DMI_SYS_VENDOR, "BenQ"),
273                 },
274         },
275         /*
276          * Disable OSI(Linux) warnings on all "Clevo Co."
277          *
278          * _OSI(Linux) confirmed to be a NOP:
279          * DMI_MATCH(DMI_PRODUCT_NAME, "M570RU"),
280          */
281         {
282         .callback = dmi_disable_osi_linux,
283         .ident = "Clevo",
284         .matches = {
285                      DMI_MATCH(DMI_SYS_VENDOR, "Clevo Co."),
286                 },
287         },
288         /*
289          * Disable OSI(Linux) warnings on all "COMPAL"
290          *
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"),
295          */
296         {
297         .callback = dmi_unknown_osi_linux,
298         .ident = "Compal",
299         .matches = {
300                      DMI_MATCH(DMI_BIOS_VENDOR, "COMPAL"),
301                 },
302         },
303         { /* OSI(Linux) touches USB, breaks suspend to disk */
304         .callback = dmi_disable_osi_linux,
305         .ident = "Dell Dimension 5150",
306         .matches = {
307                      DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
308                      DMI_MATCH(DMI_PRODUCT_NAME, "Dell DM051"),
309                 },
310         },
311         { /* OSI(Linux) is a NOP */
312         .callback = dmi_disable_osi_linux,
313         .ident = "Dell",
314         .matches = {
315                      DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
316                      DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1501"),
317                 },
318         },
319         { /* OSI(Linux) effect unknown */
320         .callback = dmi_unknown_osi_linux,
321         .ident = "Dell",
322         .matches = {
323                      DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
324                      DMI_MATCH(DMI_PRODUCT_NAME, "Latitude D830"),
325                 },
326         },
327         { /* OSI(Linux) effect unknown */
328         .callback = dmi_unknown_osi_linux,
329         .ident = "Dell",
330         .matches = {
331                      DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
332                      DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex GX620"),
333                 },
334         },
335         { /* OSI(Linux) effect unknown */
336         .callback = dmi_unknown_osi_linux,
337         .ident = "Dell",
338         .matches = {
339                      DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
340                      DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge 1900"),
341                 },
342         },
343         { /* OSI(Linux) touches USB */
344         .callback = dmi_disable_osi_linux,
345         .ident = "Dell",
346         .matches = {
347                      DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
348                      DMI_MATCH(DMI_PRODUCT_NAME, "Precision WorkStation 390"),
349                 },
350         },
351         { /* OSI(Linux) is a NOP */
352         .callback = dmi_disable_osi_linux,
353         .ident = "Dell Vostro 1000",
354         .matches = {
355                      DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
356                      DMI_MATCH(DMI_PRODUCT_NAME, "Vostro   1000"),
357                 },
358         },
359         { /* OSI(Linux) effect unknown */
360         .callback = dmi_unknown_osi_linux,
361         .ident = "Dell",
362         .matches = {
363                      DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
364                      DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge SC440"),
365                 },
366         },
367         { /* OSI(Linux) effect unknown */
368         .callback = dmi_unknown_osi_linux,
369         .ident = "Dialogue Flybook V5",
370         .matches = {
371                      DMI_MATCH(DMI_SYS_VENDOR, "Dialogue Technology Corporation"),
372                      DMI_MATCH(DMI_PRODUCT_NAME, "Flybook V5"),
373                 },
374         },
375         /*
376          * Disable OSI(Linux) warnings on all "FUJITSU SIEMENS"
377          *
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"),
388          */
389         {
390         .callback = dmi_disable_osi_linux,
391         .ident = "Fujitsu Siemens",
392         .matches = {
393                      DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
394                 },
395         },
396         /*
397          * Disable OSI(Linux) warnings on all "Hewlett-Packard"
398          *
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"),
422          */
423         {
424         .callback = dmi_disable_osi_linux,
425         .ident = "Hewlett-Packard",
426         .matches = {
427                      DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
428                 },
429         },
430         /*
431          * Lenovo has a mix of systems OSI(Linux) situations
432          * and thus we can not wildcard the vendor.
433          *
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"),
439          */
440         {
441         .callback = dmi_enable_osi_linux,
442         .ident = "Lenovo ThinkPad R61",
443         .matches = {
444                      DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
445                      DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad R61"),
446                 },
447         },
448         {
449         .callback = dmi_enable_osi_linux,
450         .ident = "Lenovo ThinkPad T61",
451         .matches = {
452                      DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
453                      DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T61"),
454                 },
455         },
456         {
457         .callback = dmi_unknown_osi_linux,
458         .ident = "Lenovo 3000 V100",
459         .matches = {
460                      DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
461                      DMI_MATCH(DMI_PRODUCT_VERSION, "LENOVO3000 V100"),
462                 },
463         },
464         {
465         .callback = dmi_disable_osi_linux,
466         .ident = "Lenovo 3000 N100",
467         .matches = {
468                      DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
469                      DMI_MATCH(DMI_PRODUCT_VERSION, "3000 N100"),
470                 },
471         },
472         /*
473          * Disable OSI(Linux) warnings on all "LG Electronics"
474          *
475          * _OSI(Linux) confirmed to be a NOP:
476          * DMI_MATCH(DMI_PRODUCT_NAME, "P1-J150B"),
477          */
478         {
479         .callback = dmi_disable_osi_linux,
480         .ident = "LG",
481         .matches = {
482                      DMI_MATCH(DMI_SYS_VENDOR, "LG Electronics"),
483                 },
484         },
485         /* NEC - OSI(Linux) effect unknown */
486         {
487         .callback = dmi_unknown_osi_linux,
488         .ident = "NEC VERSA M360",
489         .matches = {
490                      DMI_MATCH(DMI_SYS_VENDOR, "NEC Computers SAS"),
491                      DMI_MATCH(DMI_PRODUCT_NAME, "NEC VERSA M360"),
492                 },
493         },
494         /*
495          * Disable OSI(Linux) warnings on all "Samsung Electronics"
496          *
497          * OSI(Linux) disables PNP0C32 and other BIOS code for Windows:
498          * DMI_MATCH(DMI_PRODUCT_NAME, "R40P/R41P"),
499          * DMI_MATCH(DMI_PRODUCT_NAME, "R59P/R60P/R61P"),
500          */
501         {
502         .callback = dmi_disable_osi_linux,
503         .ident = "Samsung",
504         .matches = {
505                      DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
506                 },
507         },
508         /*
509          * Disable OSI(Linux) warnings on all "Sony Corporation"
510          *
511          * _OSI(Linux) is a NOP:
512          * DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SZ650N"),
513          * DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SZ38GP_C"),
514          * DMI_MATCH(DMI_PRODUCT_NAME, "VGN-TZ21MN_N"),
515          * _OSI(Linux) unknown effect:
516          * DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FZ11M"),
517          */
518         {
519         .callback = dmi_unknown_osi_linux,
520         .ident = "Sony",
521         .matches = {
522                      DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
523                 },
524         },
525         /*
526          * Disable OSI(Linux) warnings on all "TOSHIBA"
527          *
528          * _OSI(Linux) breaks sound (bugzilla 7787):
529          * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P100"),
530          * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P105"),
531          * _OSI(Linux) is a NOP:
532          * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite A100"),
533          * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite A210"),
534          * _OSI(Linux) unknown effect:
535          * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite A135"),
536          * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite A200"),
537          * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P205"),
538          * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite U305"),
539          */
540         {
541         .callback = dmi_disable_osi_linux,
542         .ident = "Toshiba",
543         .matches = {
544                      DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
545                 },
546         },
547         {}
548 };
549
550 #endif /* CONFIG_DMI */