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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
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.
Len Brownd4b7dc42008-01-23 20:50:56 -05006 * Check given machine against acpi_osi_dmi_table[].
Linus Torvalds1da177e2005-04-16 15:20:36 -07007 *
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
Linus Torvalds1da177e2005-04-16 15:20:36 -070030#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
Len Browna192a952009-07-28 16:45:54 -040037#include "internal.h"
38
Len Brown4be44fc2005-08-05 00:44:28 -040039enum acpi_blacklist_predicates {
40 all_versions,
41 less_than_or_equal,
42 equal,
43 greater_than_or_equal,
Linus Torvalds1da177e2005-04-16 15:20:36 -070044};
45
Len Brown4be44fc2005-08-05 00:44:28 -040046struct acpi_blacklist_item {
47 char oem_id[7];
48 char oem_table_id[9];
49 u32 oem_revision;
Alexey Starikovskiyad71860a2007-02-02 19:48:19 +030050 char *table;
Len Brown4be44fc2005-08-05 00:44:28 -040051 enum acpi_blacklist_predicates oem_revision_predicate;
52 char *reason;
53 u32 is_critical_error;
Linus Torvalds1da177e2005-04-16 15:20:36 -070054};
55
Len Brownd4b7dc42008-01-23 20:50:56 -050056static struct dmi_system_id acpi_osi_dmi_table[] __initdata;
57
Linus Torvalds1da177e2005-04-16 15:20:36 -070058/*
59 * POLICY: If *anything* doesn't work, put it on the blacklist.
60 * If they are critical errors, mark it critical, and abort driver load.
61 */
Len Brown4be44fc2005-08-05 00:44:28 -040062static struct acpi_blacklist_item acpi_blacklist[] __initdata = {
Linus Torvalds1da177e2005-04-16 15:20:36 -070063 /* Compaq Presario 1700 */
Alexey Starikovskiyad71860a2007-02-02 19:48:19 +030064 {"PTLTD ", " DSDT ", 0x06040000, ACPI_SIG_DSDT, less_than_or_equal,
Len Brown4be44fc2005-08-05 00:44:28 -040065 "Multiple problems", 1},
Linus Torvalds1da177e2005-04-16 15:20:36 -070066 /* Sony FX120, FX140, FX150? */
Alexey Starikovskiyad71860a2007-02-02 19:48:19 +030067 {"SONY ", "U0 ", 0x20010313, ACPI_SIG_DSDT, less_than_or_equal,
Len Brown4be44fc2005-08-05 00:44:28 -040068 "ACPI driver problem", 1},
Linus Torvalds1da177e2005-04-16 15:20:36 -070069 /* Compaq Presario 800, Insyde BIOS */
Alexey Starikovskiyad71860a2007-02-02 19:48:19 +030070 {"INT440", "SYSFexxx", 0x00001001, ACPI_SIG_DSDT, less_than_or_equal,
Len Brown4be44fc2005-08-05 00:44:28 -040071 "Does not use _REG to protect EC OpRegions", 1},
Linus Torvalds1da177e2005-04-16 15:20:36 -070072 /* IBM 600E - _ADR should return 7, but it returns 1 */
Alexey Starikovskiyad71860a2007-02-02 19:48:19 +030073 {"IBM ", "TP600E ", 0x00000105, ACPI_SIG_DSDT, less_than_or_equal,
Len Brown4be44fc2005-08-05 00:44:28 -040074 "Incorrect _ADR", 1},
Linus Torvalds1da177e2005-04-16 15:20:36 -070075
76 {""}
77};
78
Linus Torvalds1da177e2005-04-16 15:20:36 -070079#if CONFIG_ACPI_BLACKLIST_YEAR
80
Len Brown4be44fc2005-08-05 00:44:28 -040081static int __init blacklist_by_year(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -070082{
Tejun Heo3e5cd1f2009-08-16 21:02:36 +090083 int year;
84
Andi Kleenf083a322006-03-25 16:30:19 +010085 /* Doesn't exist? Likely an old system */
Tejun Heo3e5cd1f2009-08-16 21:02:36 +090086 if (!dmi_get_date(DMI_BIOS_DATE, &year, NULL, NULL)) {
Anthony Godshall, Ampro Computers, Inc5b27b172007-03-09 21:19:05 -050087 printk(KERN_ERR PREFIX "no DMI BIOS year, "
88 "acpi=force is required to enable ACPI\n" );
Andi Kleenf083a322006-03-25 16:30:19 +010089 return 1;
Anthony Godshall, Ampro Computers, Inc5b27b172007-03-09 21:19:05 -050090 }
Andi Kleenf083a322006-03-25 16:30:19 +010091 /* 0? Likely a buggy new BIOS */
Anthony Godshall, Ampro Computers, Inc5b27b172007-03-09 21:19:05 -050092 if (year == 0) {
93 printk(KERN_ERR PREFIX "DMI BIOS year==0, "
94 "assuming ACPI-capable machine\n" );
Linus Torvalds1da177e2005-04-16 15:20:36 -070095 return 0;
Anthony Godshall, Ampro Computers, Inc5b27b172007-03-09 21:19:05 -050096 }
Linus Torvalds1da177e2005-04-16 15:20:36 -070097 if (year < CONFIG_ACPI_BLACKLIST_YEAR) {
Len Brown4be44fc2005-08-05 00:44:28 -040098 printk(KERN_ERR PREFIX "BIOS age (%d) fails cutoff (%d), "
99 "acpi=force is required to enable ACPI\n",
100 year, CONFIG_ACPI_BLACKLIST_YEAR);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700101 return 1;
102 }
103 return 0;
104}
105#else
Len Brown4be44fc2005-08-05 00:44:28 -0400106static inline int blacklist_by_year(void)
107{
108 return 0;
109}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700110#endif
111
Len Brown4be44fc2005-08-05 00:44:28 -0400112int __init acpi_blacklisted(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700113{
114 int i = 0;
115 int blacklisted = 0;
Alexey Starikovskiy428f2112007-02-02 19:48:22 +0300116 struct acpi_table_header table_header;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700117
Len Brown4be44fc2005-08-05 00:44:28 -0400118 while (acpi_blacklist[i].oem_id[0] != '\0') {
Alexey Starikovskiyad71860a2007-02-02 19:48:19 +0300119 if (acpi_get_table_header(acpi_blacklist[i].table, 0, &table_header)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700120 i++;
121 continue;
122 }
123
Alexey Starikovskiy428f2112007-02-02 19:48:22 +0300124 if (strncmp(acpi_blacklist[i].oem_id, table_header.oem_id, 6)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700125 i++;
126 continue;
127 }
128
Len Brown4be44fc2005-08-05 00:44:28 -0400129 if (strncmp
Alexey Starikovskiy428f2112007-02-02 19:48:22 +0300130 (acpi_blacklist[i].oem_table_id, table_header.oem_table_id,
Len Brown4be44fc2005-08-05 00:44:28 -0400131 8)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700132 i++;
133 continue;
134 }
135
136 if ((acpi_blacklist[i].oem_revision_predicate == all_versions)
Len Brown4be44fc2005-08-05 00:44:28 -0400137 || (acpi_blacklist[i].oem_revision_predicate ==
138 less_than_or_equal
Alexey Starikovskiy428f2112007-02-02 19:48:22 +0300139 && table_header.oem_revision <=
Len Brown4be44fc2005-08-05 00:44:28 -0400140 acpi_blacklist[i].oem_revision)
141 || (acpi_blacklist[i].oem_revision_predicate ==
142 greater_than_or_equal
Alexey Starikovskiy428f2112007-02-02 19:48:22 +0300143 && table_header.oem_revision >=
Len Brown4be44fc2005-08-05 00:44:28 -0400144 acpi_blacklist[i].oem_revision)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700145 || (acpi_blacklist[i].oem_revision_predicate == equal
Alexey Starikovskiy428f2112007-02-02 19:48:22 +0300146 && table_header.oem_revision ==
Len Brown4be44fc2005-08-05 00:44:28 -0400147 acpi_blacklist[i].oem_revision)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700148
Len Brown4be44fc2005-08-05 00:44:28 -0400149 printk(KERN_ERR PREFIX
150 "Vendor \"%6.6s\" System \"%8.8s\" "
151 "Revision 0x%x has a known ACPI BIOS problem.\n",
152 acpi_blacklist[i].oem_id,
153 acpi_blacklist[i].oem_table_id,
154 acpi_blacklist[i].oem_revision);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700155
Len Brown4be44fc2005-08-05 00:44:28 -0400156 printk(KERN_ERR PREFIX
157 "Reason: %s. This is a %s error\n",
158 acpi_blacklist[i].reason,
159 (acpi_blacklist[i].
160 is_critical_error ? "non-recoverable" :
161 "recoverable"));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700162
163 blacklisted = acpi_blacklist[i].is_critical_error;
164 break;
Len Brown4be44fc2005-08-05 00:44:28 -0400165 } else {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700166 i++;
167 }
168 }
169
170 blacklisted += blacklist_by_year();
171
Len Brownd4b7dc42008-01-23 20:50:56 -0500172 dmi_check_system(acpi_osi_dmi_table);
173
Linus Torvalds1da177e2005-04-16 15:20:36 -0700174 return blacklisted;
175}
Len Brownd4b7dc42008-01-23 20:50:56 -0500176#ifdef CONFIG_DMI
Len Brown98f1db22008-01-23 20:56:18 -0500177static int __init dmi_enable_osi_linux(const struct dmi_system_id *d)
178{
179 acpi_dmi_osi_linux(1, d); /* enable */
180 return 0;
181}
Len Brown46c1fbd2008-02-13 23:13:25 -0500182static int __init dmi_disable_osi_vista(const struct dmi_system_id *d)
183{
184 printk(KERN_NOTICE PREFIX "DMI detected: %s\n", d->ident);
185 acpi_osi_setup("!Windows 2006");
186 return 0;
187}
Len Browna1bd4e32008-01-23 21:19:27 -0500188
Len Brownd4b7dc42008-01-23 20:50:56 -0500189static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
Len Brown46c1fbd2008-02-13 23:13:25 -0500190 {
191 .callback = dmi_disable_osi_vista,
192 .ident = "Fujitsu Siemens",
193 .matches = {
194 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
Len Browna6e08872008-11-08 01:21:10 -0500195 DMI_MATCH(DMI_PRODUCT_NAME, "ESPRIMO Mobile V5505"),
Len Brown46c1fbd2008-02-13 23:13:25 -0500196 },
197 },
Zhang Rui35a7c64f2009-06-22 11:31:17 +0800198 {
199 .callback = dmi_disable_osi_vista,
200 .ident = "Sony VGN-NS10J_S",
201 .matches = {
202 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
203 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-NS10J_S"),
204 },
205 },
206 {
207 .callback = dmi_disable_osi_vista,
208 .ident = "Sony VGN-SR290J",
209 .matches = {
210 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
211 DMI_MATCH(DMI_PRODUCT_NAME, "Sony VGN-SR290J"),
212 },
213 },
Len Browna6e08872008-11-08 01:21:10 -0500214
Len Browna1bd4e32008-01-23 21:19:27 -0500215 /*
Len Browna6e08872008-11-08 01:21:10 -0500216 * BIOS invocation of _OSI(Linux) is almost always a BIOS bug.
217 * Linux ignores it, except for the machines enumerated below.
Len Browna1bd4e32008-01-23 21:19:27 -0500218 */
Len Browna6e08872008-11-08 01:21:10 -0500219
Len Browna1bd4e32008-01-23 21:19:27 -0500220 /*
221 * Lenovo has a mix of systems OSI(Linux) situations
222 * and thus we can not wildcard the vendor.
223 *
Len Brown98f1db22008-01-23 20:56:18 -0500224 * _OSI(Linux) helps sound
225 * DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad R61"),
226 * DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T61"),
Jerone Young8b1edc52009-08-27 00:04:44 -0500227 * T400, T500
Len Brownbb546752008-02-10 21:29:56 -0500228 * _OSI(Linux) has Linux specific hooks
229 * DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X61"),
Len Browna1bd4e32008-01-23 21:19:27 -0500230 * _OSI(Linux) is a NOP:
231 * DMI_MATCH(DMI_PRODUCT_VERSION, "3000 N100"),
Len Brownbb546752008-02-10 21:29:56 -0500232 * DMI_MATCH(DMI_PRODUCT_VERSION, "LENOVO3000 V100"),
Len Brown98f1db22008-01-23 20:56:18 -0500233 */
234 {
235 .callback = dmi_enable_osi_linux,
236 .ident = "Lenovo ThinkPad R61",
237 .matches = {
238 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
239 DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad R61"),
240 },
241 },
242 {
243 .callback = dmi_enable_osi_linux,
244 .ident = "Lenovo ThinkPad T61",
245 .matches = {
246 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
247 DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T61"),
248 },
249 },
Len Browna1bd4e32008-01-23 21:19:27 -0500250 {
Len Brownbb546752008-02-10 21:29:56 -0500251 .callback = dmi_enable_osi_linux,
Len Brown446b1df2008-02-07 16:23:00 -0500252 .ident = "Lenovo ThinkPad X61",
253 .matches = {
254 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
255 DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X61"),
256 },
257 },
Jerone Young8b1edc52009-08-27 00:04:44 -0500258 {
259 .callback = dmi_enable_osi_linux,
260 .ident = "Lenovo ThinkPad T400",
261 .matches = {
262 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
263 DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T400"),
264 },
265 },
266 {
267 .callback = dmi_enable_osi_linux,
268 .ident = "Lenovo ThinkPad T500",
269 .matches = {
270 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
271 DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T500"),
272 },
273 },
Len Brownd4b7dc42008-01-23 20:50:56 -0500274 {}
275};
276
277#endif /* CONFIG_DMI */