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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/init.h> |
32 | #include <linux/acpi.h> |
33 | #include <acpi/acpi_bus.h> |
34 | #include <linux/dmi.h> |
35 | |
36 | #include "internal.h" |
37 | |
38 | enum acpi_blacklist_predicates { |
39 | all_versions, |
40 | less_than_or_equal, |
41 | equal, |
42 | greater_than_or_equal, |
43 | }; |
44 | |
45 | struct acpi_blacklist_item { |
46 | char oem_id[7]; |
47 | char oem_table_id[9]; |
48 | u32 oem_revision; |
49 | char *table; |
50 | enum acpi_blacklist_predicates oem_revision_predicate; |
51 | char *reason; |
52 | u32 is_critical_error; |
53 | }; |
54 | |
55 | static struct dmi_system_id acpi_osi_dmi_table[] __initdata; |
56 | |
57 | /* |
58 | * POLICY: If *anything* doesn't work, put it on the blacklist. |
59 | * If they are critical errors, mark it critical, and abort driver load. |
60 | */ |
61 | static struct acpi_blacklist_item acpi_blacklist[] __initdata = { |
62 | /* Compaq Presario 1700 */ |
63 | {"PTLTD ", " DSDT ", 0x06040000, ACPI_SIG_DSDT, less_than_or_equal, |
64 | "Multiple problems", 1}, |
65 | /* Sony FX120, FX140, FX150? */ |
66 | {"SONY ", "U0 ", 0x20010313, ACPI_SIG_DSDT, less_than_or_equal, |
67 | "ACPI driver problem", 1}, |
68 | /* Compaq Presario 800, Insyde BIOS */ |
69 | {"INT440", "SYSFexxx", 0x00001001, ACPI_SIG_DSDT, less_than_or_equal, |
70 | "Does not use _REG to protect EC OpRegions", 1}, |
71 | /* IBM 600E - _ADR should return 7, but it returns 1 */ |
72 | {"IBM ", "TP600E ", 0x00000105, ACPI_SIG_DSDT, less_than_or_equal, |
73 | "Incorrect _ADR", 1}, |
74 | |
75 | {""} |
76 | }; |
77 | |
78 | #if CONFIG_ACPI_BLACKLIST_YEAR |
79 | |
80 | static int __init blacklist_by_year(void) |
81 | { |
82 | int year; |
83 | |
84 | /* Doesn't exist? Likely an old system */ |
85 | if (!dmi_get_date(DMI_BIOS_DATE, &year, NULL, NULL)) { |
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_vista(const struct dmi_system_id *d) |
182 | { |
183 | printk(KERN_NOTICE PREFIX "DMI detected: %s\n", d->ident); |
184 | acpi_osi_setup("!Windows 2006"); |
185 | acpi_osi_setup("!Windows 2006 SP1"); |
186 | acpi_osi_setup("!Windows 2006 SP2"); |
187 | return 0; |
188 | } |
189 | static int __init dmi_disable_osi_win7(const struct dmi_system_id *d) |
190 | { |
191 | printk(KERN_NOTICE PREFIX "DMI detected: %s\n", d->ident); |
192 | acpi_osi_setup("!Windows 2009"); |
193 | return 0; |
194 | } |
195 | |
196 | static struct dmi_system_id acpi_osi_dmi_table[] __initdata = { |
197 | { |
198 | .callback = dmi_disable_osi_vista, |
199 | .ident = "Fujitsu Siemens", |
200 | .matches = { |
201 | DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), |
202 | DMI_MATCH(DMI_PRODUCT_NAME, "ESPRIMO Mobile V5505"), |
203 | }, |
204 | }, |
205 | { |
206 | /* |
207 | * There have a NVIF method in MSI GX723 DSDT need call by Nvidia |
208 | * driver (e.g. nouveau) when user press brightness hotkey. |
209 | * Currently, nouveau driver didn't do the job and it causes there |
210 | * have a infinite while loop in DSDT when user press hotkey. |
211 | * We add MSI GX723's dmi information to this table for workaround |
212 | * this issue. |
213 | * Will remove MSI GX723 from the table after nouveau grows support. |
214 | */ |
215 | .callback = dmi_disable_osi_vista, |
216 | .ident = "MSI GX723", |
217 | .matches = { |
218 | DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"), |
219 | DMI_MATCH(DMI_PRODUCT_NAME, "GX723"), |
220 | }, |
221 | }, |
222 | { |
223 | .callback = dmi_disable_osi_vista, |
224 | .ident = "Sony VGN-NS10J_S", |
225 | .matches = { |
226 | DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"), |
227 | DMI_MATCH(DMI_PRODUCT_NAME, "VGN-NS10J_S"), |
228 | }, |
229 | }, |
230 | { |
231 | .callback = dmi_disable_osi_vista, |
232 | .ident = "Sony VGN-SR290J", |
233 | .matches = { |
234 | DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"), |
235 | DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SR290J"), |
236 | }, |
237 | }, |
238 | { |
239 | .callback = dmi_disable_osi_vista, |
240 | .ident = "VGN-NS50B_L", |
241 | .matches = { |
242 | DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"), |
243 | DMI_MATCH(DMI_PRODUCT_NAME, "VGN-NS50B_L"), |
244 | }, |
245 | }, |
246 | { |
247 | .callback = dmi_disable_osi_vista, |
248 | .ident = "Toshiba Satellite L355", |
249 | .matches = { |
250 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), |
251 | DMI_MATCH(DMI_PRODUCT_VERSION, "Satellite L355"), |
252 | }, |
253 | }, |
254 | { |
255 | .callback = dmi_disable_osi_win7, |
256 | .ident = "ASUS K50IJ", |
257 | .matches = { |
258 | DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."), |
259 | DMI_MATCH(DMI_PRODUCT_NAME, "K50IJ"), |
260 | }, |
261 | }, |
262 | { |
263 | .callback = dmi_disable_osi_vista, |
264 | .ident = "Toshiba P305D", |
265 | .matches = { |
266 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), |
267 | DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P305D"), |
268 | }, |
269 | }, |
270 | |
271 | /* |
272 | * BIOS invocation of _OSI(Linux) is almost always a BIOS bug. |
273 | * Linux ignores it, except for the machines enumerated below. |
274 | */ |
275 | |
276 | /* |
277 | * Lenovo has a mix of systems OSI(Linux) situations |
278 | * and thus we can not wildcard the vendor. |
279 | * |
280 | * _OSI(Linux) helps sound |
281 | * DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad R61"), |
282 | * DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T61"), |
283 | * T400, T500 |
284 | * _OSI(Linux) has Linux specific hooks |
285 | * DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X61"), |
286 | * _OSI(Linux) is a NOP: |
287 | * DMI_MATCH(DMI_PRODUCT_VERSION, "3000 N100"), |
288 | * DMI_MATCH(DMI_PRODUCT_VERSION, "LENOVO3000 V100"), |
289 | */ |
290 | { |
291 | .callback = dmi_enable_osi_linux, |
292 | .ident = "Lenovo ThinkPad R61", |
293 | .matches = { |
294 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), |
295 | DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad R61"), |
296 | }, |
297 | }, |
298 | { |
299 | .callback = dmi_enable_osi_linux, |
300 | .ident = "Lenovo ThinkPad T61", |
301 | .matches = { |
302 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), |
303 | DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T61"), |
304 | }, |
305 | }, |
306 | { |
307 | .callback = dmi_enable_osi_linux, |
308 | .ident = "Lenovo ThinkPad X61", |
309 | .matches = { |
310 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), |
311 | DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X61"), |
312 | }, |
313 | }, |
314 | { |
315 | .callback = dmi_enable_osi_linux, |
316 | .ident = "Lenovo ThinkPad T400", |
317 | .matches = { |
318 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), |
319 | DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T400"), |
320 | }, |
321 | }, |
322 | { |
323 | .callback = dmi_enable_osi_linux, |
324 | .ident = "Lenovo ThinkPad T500", |
325 | .matches = { |
326 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), |
327 | DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T500"), |
328 | }, |
329 | }, |
330 | {} |
331 | }; |
332 | |
333 | #endif /* CONFIG_DMI */ |
334 |
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