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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/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#include "internal.h"
38
39enum acpi_blacklist_predicates {
40 all_versions,
41 less_than_or_equal,
42 equal,
43 greater_than_or_equal,
44};
45
46struct acpi_blacklist_item {
47 char oem_id[7];
48 char oem_table_id[9];
49 u32 oem_revision;
50 char *table;
51 enum acpi_blacklist_predicates oem_revision_predicate;
52 char *reason;
53 u32 is_critical_error;
54};
55
56static struct dmi_system_id acpi_osi_dmi_table[] __initdata;
57
58/*
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 */
62static struct acpi_blacklist_item acpi_blacklist[] __initdata = {
63 /* Compaq Presario 1700 */
64 {"PTLTD ", " DSDT ", 0x06040000, ACPI_SIG_DSDT, less_than_or_equal,
65 "Multiple problems", 1},
66 /* Sony FX120, FX140, FX150? */
67 {"SONY ", "U0 ", 0x20010313, ACPI_SIG_DSDT, less_than_or_equal,
68 "ACPI driver problem", 1},
69 /* Compaq Presario 800, Insyde BIOS */
70 {"INT440", "SYSFexxx", 0x00001001, ACPI_SIG_DSDT, less_than_or_equal,
71 "Does not use _REG to protect EC OpRegions", 1},
72 /* IBM 600E - _ADR should return 7, but it returns 1 */
73 {"IBM ", "TP600E ", 0x00000105, ACPI_SIG_DSDT, less_than_or_equal,
74 "Incorrect _ADR", 1},
75
76 {""}
77};
78
79#if CONFIG_ACPI_BLACKLIST_YEAR
80
81static int __init blacklist_by_year(void)
82{
83 int year;
84
85 /* Doesn't exist? Likely an old system */
86 if (!dmi_get_date(DMI_BIOS_DATE, &year, NULL, NULL)) {
87 printk(KERN_ERR PREFIX "no DMI BIOS year, "
88 "acpi=force is required to enable ACPI\n" );
89 return 1;
90 }
91 /* 0? Likely a buggy new BIOS */
92 if (year == 0) {
93 printk(KERN_ERR PREFIX "DMI BIOS year==0, "
94 "assuming ACPI-capable machine\n" );
95 return 0;
96 }
97 if (year < CONFIG_ACPI_BLACKLIST_YEAR) {
98 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);
101 return 1;
102 }
103 return 0;
104}
105#else
106static inline int blacklist_by_year(void)
107{
108 return 0;
109}
110#endif
111
112int __init acpi_blacklisted(void)
113{
114 int i = 0;
115 int blacklisted = 0;
116 struct acpi_table_header table_header;
117
118 while (acpi_blacklist[i].oem_id[0] != '\0') {
119 if (acpi_get_table_header(acpi_blacklist[i].table, 0, &table_header)) {
120 i++;
121 continue;
122 }
123
124 if (strncmp(acpi_blacklist[i].oem_id, table_header.oem_id, 6)) {
125 i++;
126 continue;
127 }
128
129 if (strncmp
130 (acpi_blacklist[i].oem_table_id, table_header.oem_table_id,
131 8)) {
132 i++;
133 continue;
134 }
135
136 if ((acpi_blacklist[i].oem_revision_predicate == all_versions)
137 || (acpi_blacklist[i].oem_revision_predicate ==
138 less_than_or_equal
139 && table_header.oem_revision <=
140 acpi_blacklist[i].oem_revision)
141 || (acpi_blacklist[i].oem_revision_predicate ==
142 greater_than_or_equal
143 && table_header.oem_revision >=
144 acpi_blacklist[i].oem_revision)
145 || (acpi_blacklist[i].oem_revision_predicate == equal
146 && table_header.oem_revision ==
147 acpi_blacklist[i].oem_revision)) {
148
149 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);
155
156 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"));
162
163 blacklisted = acpi_blacklist[i].is_critical_error;
164 break;
165 } else {
166 i++;
167 }
168 }
169
170 blacklisted += blacklist_by_year();
171
172 dmi_check_system(acpi_osi_dmi_table);
173
174 return blacklisted;
175}
176#ifdef CONFIG_DMI
177static 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}
182static 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 acpi_osi_setup("!Windows 2006 SP1");
187 acpi_osi_setup("!Windows 2006 SP2");
188 return 0;
189}
190static int __init dmi_disable_osi_win7(const struct dmi_system_id *d)
191{
192 printk(KERN_NOTICE PREFIX "DMI detected: %s\n", d->ident);
193 acpi_osi_setup("!Windows 2009");
194 return 0;
195}
196
197static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
198 {
199 .callback = dmi_disable_osi_vista,
200 .ident = "Fujitsu Siemens",
201 .matches = {
202 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
203 DMI_MATCH(DMI_PRODUCT_NAME, "ESPRIMO Mobile V5505"),
204 },
205 },
206 {
207 /*
208 * There have a NVIF method in MSI GX723 DSDT need call by Nvidia
209 * driver (e.g. nouveau) when user press brightness hotkey.
210 * Currently, nouveau driver didn't do the job and it causes there
211 * have a infinite while loop in DSDT when user press hotkey.
212 * We add MSI GX723's dmi information to this table for workaround
213 * this issue.
214 * Will remove MSI GX723 from the table after nouveau grows support.
215 */
216 .callback = dmi_disable_osi_vista,
217 .ident = "MSI GX723",
218 .matches = {
219 DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
220 DMI_MATCH(DMI_PRODUCT_NAME, "GX723"),
221 },
222 },
223 {
224 .callback = dmi_disable_osi_vista,
225 .ident = "Sony VGN-NS10J_S",
226 .matches = {
227 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
228 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-NS10J_S"),
229 },
230 },
231 {
232 .callback = dmi_disable_osi_vista,
233 .ident = "Sony VGN-SR290J",
234 .matches = {
235 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
236 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SR290J"),
237 },
238 },
239 {
240 .callback = dmi_disable_osi_vista,
241 .ident = "VGN-NS50B_L",
242 .matches = {
243 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
244 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-NS50B_L"),
245 },
246 },
247 {
248 .callback = dmi_disable_osi_vista,
249 .ident = "Toshiba Satellite L355",
250 .matches = {
251 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
252 DMI_MATCH(DMI_PRODUCT_VERSION, "Satellite L355"),
253 },
254 },
255 {
256 .callback = dmi_disable_osi_win7,
257 .ident = "ASUS K50IJ",
258 .matches = {
259 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
260 DMI_MATCH(DMI_PRODUCT_NAME, "K50IJ"),
261 },
262 },
263 {
264 .callback = dmi_disable_osi_vista,
265 .ident = "Toshiba P305D",
266 .matches = {
267 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
268 DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P305D"),
269 },
270 },
271
272 /*
273 * BIOS invocation of _OSI(Linux) is almost always a BIOS bug.
274 * Linux ignores it, except for the machines enumerated below.
275 */
276
277 /*
278 * Lenovo has a mix of systems OSI(Linux) situations
279 * and thus we can not wildcard the vendor.
280 *
281 * _OSI(Linux) helps sound
282 * DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad R61"),
283 * DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T61"),
284 * T400, T500
285 * _OSI(Linux) has Linux specific hooks
286 * DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X61"),
287 * _OSI(Linux) is a NOP:
288 * DMI_MATCH(DMI_PRODUCT_VERSION, "3000 N100"),
289 * DMI_MATCH(DMI_PRODUCT_VERSION, "LENOVO3000 V100"),
290 */
291 {
292 .callback = dmi_enable_osi_linux,
293 .ident = "Lenovo ThinkPad R61",
294 .matches = {
295 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
296 DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad R61"),
297 },
298 },
299 {
300 .callback = dmi_enable_osi_linux,
301 .ident = "Lenovo ThinkPad T61",
302 .matches = {
303 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
304 DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T61"),
305 },
306 },
307 {
308 .callback = dmi_enable_osi_linux,
309 .ident = "Lenovo ThinkPad X61",
310 .matches = {
311 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
312 DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X61"),
313 },
314 },
315 {
316 .callback = dmi_enable_osi_linux,
317 .ident = "Lenovo ThinkPad T400",
318 .matches = {
319 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
320 DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T400"),
321 },
322 },
323 {
324 .callback = dmi_enable_osi_linux,
325 .ident = "Lenovo ThinkPad T500",
326 .matches = {
327 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
328 DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T500"),
329 },
330 },
331 {}
332};
333
334#endif /* CONFIG_DMI */
1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * blacklist.c
4 *
5 * Check to see if the given machine has a known bad ACPI BIOS
6 * or if the BIOS is too old.
7 * Check given machine against acpi_rev_dmi_table[].
8 *
9 * Copyright (C) 2004 Len Brown <len.brown@intel.com>
10 * Copyright (C) 2002 Andy Grover <andrew.grover@intel.com>
11 */
12
13#define pr_fmt(fmt) "ACPI: " fmt
14
15#include <linux/kernel.h>
16#include <linux/init.h>
17#include <linux/acpi.h>
18#include <linux/dmi.h>
19
20#include "internal.h"
21
22#ifdef CONFIG_DMI
23static const struct dmi_system_id acpi_rev_dmi_table[] __initconst;
24#endif
25
26/*
27 * POLICY: If *anything* doesn't work, put it on the blacklist.
28 * If they are critical errors, mark it critical, and abort driver load.
29 */
30static struct acpi_platform_list acpi_blacklist[] __initdata = {
31 /* Compaq Presario 1700 */
32 {"PTLTD ", " DSDT ", 0x06040000, ACPI_SIG_DSDT, less_than_or_equal,
33 "Multiple problems", 1},
34 /* Sony FX120, FX140, FX150? */
35 {"SONY ", "U0 ", 0x20010313, ACPI_SIG_DSDT, less_than_or_equal,
36 "ACPI driver problem", 1},
37 /* Compaq Presario 800, Insyde BIOS */
38 {"INT440", "SYSFexxx", 0x00001001, ACPI_SIG_DSDT, less_than_or_equal,
39 "Does not use _REG to protect EC OpRegions", 1},
40 /* IBM 600E - _ADR should return 7, but it returns 1 */
41 {"IBM ", "TP600E ", 0x00000105, ACPI_SIG_DSDT, less_than_or_equal,
42 "Incorrect _ADR", 1},
43
44 { }
45};
46
47int __init acpi_blacklisted(void)
48{
49 int i;
50 int blacklisted = 0;
51
52 i = acpi_match_platform_list(acpi_blacklist);
53 if (i >= 0) {
54 pr_err("Vendor \"%6.6s\" System \"%8.8s\" Revision 0x%x has a known ACPI BIOS problem.\n",
55 acpi_blacklist[i].oem_id,
56 acpi_blacklist[i].oem_table_id,
57 acpi_blacklist[i].oem_revision);
58
59 pr_err("Reason: %s. This is a %s error\n",
60 acpi_blacklist[i].reason,
61 (acpi_blacklist[i].data ?
62 "non-recoverable" : "recoverable"));
63
64 blacklisted = acpi_blacklist[i].data;
65 }
66
67 (void)early_acpi_osi_init();
68#ifdef CONFIG_DMI
69 dmi_check_system(acpi_rev_dmi_table);
70#endif
71
72 return blacklisted;
73}
74#ifdef CONFIG_DMI
75#ifdef CONFIG_ACPI_REV_OVERRIDE_POSSIBLE
76static int __init dmi_enable_rev_override(const struct dmi_system_id *d)
77{
78 pr_notice("DMI detected: %s (force ACPI _REV to 5)\n", d->ident);
79 acpi_rev_override_setup(NULL);
80 return 0;
81}
82#endif
83
84static const struct dmi_system_id acpi_rev_dmi_table[] __initconst = {
85#ifdef CONFIG_ACPI_REV_OVERRIDE_POSSIBLE
86 /*
87 * DELL XPS 13 (2015) switches sound between HDA and I2S
88 * depending on the ACPI _REV callback. If userspace supports
89 * I2S sufficiently (or if you do not care about sound), you
90 * can safely disable this quirk.
91 */
92 {
93 .callback = dmi_enable_rev_override,
94 .ident = "DELL XPS 13 (2015)",
95 .matches = {
96 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
97 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9343"),
98 },
99 },
100 {
101 .callback = dmi_enable_rev_override,
102 .ident = "DELL Precision 5520",
103 .matches = {
104 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
105 DMI_MATCH(DMI_PRODUCT_NAME, "Precision 5520"),
106 },
107 },
108 {
109 .callback = dmi_enable_rev_override,
110 .ident = "DELL Precision 3520",
111 .matches = {
112 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
113 DMI_MATCH(DMI_PRODUCT_NAME, "Precision 3520"),
114 },
115 },
116 /*
117 * Resolves a quirk with the Dell Latitude 3350 that
118 * causes the ethernet adapter to not function.
119 */
120 {
121 .callback = dmi_enable_rev_override,
122 .ident = "DELL Latitude 3350",
123 .matches = {
124 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
125 DMI_MATCH(DMI_PRODUCT_NAME, "Latitude 3350"),
126 },
127 },
128 {
129 .callback = dmi_enable_rev_override,
130 .ident = "DELL Inspiron 7537",
131 .matches = {
132 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
133 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 7537"),
134 },
135 },
136#endif
137 {}
138};
139
140#endif /* CONFIG_DMI */