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authorLv Zheng <lv.zheng@intel.com>2016-05-03 04:49:01 -0400
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2016-05-04 18:13:53 -0400
commite5f660ebef68e3ed1a988ad06ba23562153cee5c (patch)
tree0209aa2078743b40d9d4819c51dae3de9c450d43
parentd5a91d74c6d7da2cebadbb9f2d03e56f84d7be62 (diff)
ACPI / osi: Collect _OSI handling into one single file
_OSI handling code grows giant and it's time to move them into one file. This patch collects all _OSI handling code into one single file. So that we only have the following functions to be used externally: early_acpi_osi_init(): Used by DMI detections; acpi_osi_init(): Used to initialize OSI command line settings and install Linux specific _OSI handler; acpi_osi_setup(): The API that should be used by the external quirks. acpi_osi_is_win8(): The API is used by the external drivers to determine if BIOS supports Win8. CONFIG_DMI is not useful as stub dmi_check_system() can make everything stub because of strip. No functional changes. Tested-by: Lukas Wunner <lukas@wunner.de> Tested-by: Chen Yu <yu.c.chen@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat
-rw-r--r--drivers/acpi/Makefile2
-rw-r--r--drivers/acpi/blacklist.c219
-rw-r--r--drivers/acpi/internal.h2
-rw-r--r--drivers/acpi/osi.c522
-rw-r--r--drivers/acpi/osl.c256
-rw-r--r--include/linux/acpi.h2
6 files changed, 531 insertions, 472 deletions
diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile
index edeb2d1d99be..345df7f960b6 100644
--- a/drivers/acpi/Makefile
+++ b/drivers/acpi/Makefile
@@ -18,7 +18,7 @@ obj-$(CONFIG_ACPI) += acpi.o \
18 acpica/ 18 acpica/
19 19
20# All the builtin files are in the "acpi." module_param namespace. 20# All the builtin files are in the "acpi." module_param namespace.
21acpi-y += osl.o utils.o reboot.o 21acpi-y += osi.o osl.o utils.o reboot.o
22acpi-y += nvs.o 22acpi-y += nvs.o
23 23
24# Power management related files 24# Power management related files
diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c
index ba1601d26c48..bdc67bad61a7 100644
--- a/drivers/acpi/blacklist.c
+++ b/drivers/acpi/blacklist.c
@@ -3,7 +3,7 @@
3 * 3 *
4 * Check to see if the given machine has a known bad ACPI BIOS 4 * Check to see if the given machine has a known bad ACPI BIOS
5 * or if the BIOS is too old. 5 * or if the BIOS is too old.
6 * Check given machine against acpi_osi_dmi_table[]. 6 * Check given machine against acpi_rev_dmi_table[].
7 * 7 *
8 * Copyright (C) 2004 Len Brown <len.brown@intel.com> 8 * Copyright (C) 2004 Len Brown <len.brown@intel.com>
9 * Copyright (C) 2002 Andy Grover <andrew.grover@intel.com> 9 * Copyright (C) 2002 Andy Grover <andrew.grover@intel.com>
@@ -47,7 +47,7 @@ struct acpi_blacklist_item {
47 u32 is_critical_error; 47 u32 is_critical_error;
48}; 48};
49 49
50static struct dmi_system_id acpi_osi_dmi_table[] __initdata; 50static struct dmi_system_id acpi_rev_dmi_table[] __initdata;
51 51
52/* 52/*
53 * POLICY: If *anything* doesn't work, put it on the blacklist. 53 * POLICY: If *anything* doesn't work, put it on the blacklist.
@@ -128,41 +128,12 @@ int __init acpi_blacklisted(void)
128 } 128 }
129 } 129 }
130 130
131 dmi_check_system(acpi_osi_dmi_table); 131 (void)early_acpi_osi_init();
132 dmi_check_system(acpi_rev_dmi_table);
132 133
133 return blacklisted; 134 return blacklisted;
134} 135}
135#ifdef CONFIG_DMI 136#ifdef CONFIG_DMI
136static int __init dmi_enable_osi_darwin(const struct dmi_system_id *d)
137{
138 acpi_osi_dmi_darwin(true, d);
139 return 0;
140}
141static int __init dmi_enable_osi_linux(const struct dmi_system_id *d)
142{
143 acpi_osi_dmi_linux(true, d);
144 return 0;
145}
146static int __init dmi_disable_osi_vista(const struct dmi_system_id *d)
147{
148 pr_notice(PREFIX "DMI detected: %s\n", d->ident);
149 acpi_osi_setup("!Windows 2006");
150 acpi_osi_setup("!Windows 2006 SP1");
151 acpi_osi_setup("!Windows 2006 SP2");
152 return 0;
153}
154static int __init dmi_disable_osi_win7(const struct dmi_system_id *d)
155{
156 pr_notice(PREFIX "DMI detected: %s\n", d->ident);
157 acpi_osi_setup("!Windows 2009");
158 return 0;
159}
160static int __init dmi_disable_osi_win8(const struct dmi_system_id *d)
161{
162 pr_notice(PREFIX "DMI detected: %s\n", d->ident);
163 acpi_osi_setup("!Windows 2012");
164 return 0;
165}
166#ifdef CONFIG_ACPI_REV_OVERRIDE_POSSIBLE 137#ifdef CONFIG_ACPI_REV_OVERRIDE_POSSIBLE
167static int __init dmi_enable_rev_override(const struct dmi_system_id *d) 138static int __init dmi_enable_rev_override(const struct dmi_system_id *d)
168{ 139{
@@ -173,187 +144,7 @@ static int __init dmi_enable_rev_override(const struct dmi_system_id *d)
173} 144}
174#endif 145#endif
175 146
176static struct dmi_system_id acpi_osi_dmi_table[] __initdata = { 147static struct dmi_system_id acpi_rev_dmi_table[] __initdata = {
177 {
178 .callback = dmi_disable_osi_vista,
179 .ident = "Fujitsu Siemens",
180 .matches = {
181 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
182 DMI_MATCH(DMI_PRODUCT_NAME, "ESPRIMO Mobile V5505"),
183 },
184 },
185 {
186 /*
187 * There have a NVIF method in MSI GX723 DSDT need call by Nvidia
188 * driver (e.g. nouveau) when user press brightness hotkey.
189 * Currently, nouveau driver didn't do the job and it causes there
190 * have a infinite while loop in DSDT when user press hotkey.
191 * We add MSI GX723's dmi information to this table for workaround
192 * this issue.
193 * Will remove MSI GX723 from the table after nouveau grows support.
194 */
195 .callback = dmi_disable_osi_vista,
196 .ident = "MSI GX723",
197 .matches = {
198 DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
199 DMI_MATCH(DMI_PRODUCT_NAME, "GX723"),
200 },
201 },
202 {
203 .callback = dmi_disable_osi_vista,
204 .ident = "Sony VGN-NS10J_S",
205 .matches = {
206 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
207 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-NS10J_S"),
208 },
209 },
210 {
211 .callback = dmi_disable_osi_vista,
212 .ident = "Sony VGN-SR290J",
213 .matches = {
214 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
215 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SR290J"),
216 },
217 },
218 {
219 .callback = dmi_disable_osi_vista,
220 .ident = "VGN-NS50B_L",
221 .matches = {
222 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
223 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-NS50B_L"),
224 },
225 },
226 {
227 .callback = dmi_disable_osi_vista,
228 .ident = "VGN-SR19XN",
229 .matches = {
230 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
231 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SR19XN"),
232 },
233 },
234 {
235 .callback = dmi_disable_osi_vista,
236 .ident = "Toshiba Satellite L355",
237 .matches = {
238 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
239 DMI_MATCH(DMI_PRODUCT_VERSION, "Satellite L355"),
240 },
241 },
242 {
243 .callback = dmi_disable_osi_win7,
244 .ident = "ASUS K50IJ",
245 .matches = {
246 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
247 DMI_MATCH(DMI_PRODUCT_NAME, "K50IJ"),
248 },
249 },
250 {
251 .callback = dmi_disable_osi_vista,
252 .ident = "Toshiba P305D",
253 .matches = {
254 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
255 DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P305D"),
256 },
257 },
258 {
259 .callback = dmi_disable_osi_vista,
260 .ident = "Toshiba NB100",
261 .matches = {
262 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
263 DMI_MATCH(DMI_PRODUCT_NAME, "NB100"),
264 },
265 },
266
267 /*
268 * The wireless hotkey does not work on those machines when
269 * returning true for _OSI("Windows 2012")
270 */
271 {
272 .callback = dmi_disable_osi_win8,
273 .ident = "Dell Inspiron 7737",
274 .matches = {
275 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
276 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 7737"),
277 },
278 },
279 {
280 .callback = dmi_disable_osi_win8,
281 .ident = "Dell Inspiron 7537",
282 .matches = {
283 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
284 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 7537"),
285 },
286 },
287 {
288 .callback = dmi_disable_osi_win8,
289 .ident = "Dell Inspiron 5437",
290 .matches = {
291 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
292 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5437"),
293 },
294 },
295 {
296 .callback = dmi_disable_osi_win8,
297 .ident = "Dell Inspiron 3437",
298 .matches = {
299 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
300 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 3437"),
301 },
302 },
303 {
304 .callback = dmi_disable_osi_win8,
305 .ident = "Dell Vostro 3446",
306 .matches = {
307 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
308 DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 3446"),
309 },
310 },
311 {
312 .callback = dmi_disable_osi_win8,
313 .ident = "Dell Vostro 3546",
314 .matches = {
315 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
316 DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 3546"),
317 },
318 },
319
320 /*
321 * BIOS invocation of _OSI(Linux) is almost always a BIOS bug.
322 * Linux ignores it, except for the machines enumerated below.
323 */
324
325 /*
326 * Without this this EEEpc exports a non working WMI interface, with
327 * this it exports a working "good old" eeepc_laptop interface, fixing
328 * both brightness control, and rfkill not working.
329 */
330 {
331 .callback = dmi_enable_osi_linux,
332 .ident = "Asus EEE PC 1015PX",
333 .matches = {
334 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer INC."),
335 DMI_MATCH(DMI_PRODUCT_NAME, "1015PX"),
336 },
337 },
338
339 /*
340 * Enable _OSI("Darwin") for all apple platforms.
341 */
342 {
343 .callback = dmi_enable_osi_darwin,
344 .ident = "Apple hardware",
345 .matches = {
346 DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
347 },
348 },
349 {
350 .callback = dmi_enable_osi_darwin,
351 .ident = "Apple hardware",
352 .matches = {
353 DMI_MATCH(DMI_SYS_VENDOR, "Apple Computer, Inc."),
354 },
355 },
356
357#ifdef CONFIG_ACPI_REV_OVERRIDE_POSSIBLE 148#ifdef CONFIG_ACPI_REV_OVERRIDE_POSSIBLE
358 /* 149 /*
359 * DELL XPS 13 (2015) switches sound between HDA and I2S 150 * DELL XPS 13 (2015) switches sound between HDA and I2S
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index 7c188472d9c2..a8780a2e1975 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -20,6 +20,8 @@
20 20
21#define PREFIX "ACPI: " 21#define PREFIX "ACPI: "
22 22
23int early_acpi_osi_init(void);
24int acpi_osi_init(void);
23void acpi_initrd_initialize_tables(void); 25void acpi_initrd_initialize_tables(void);
24acpi_status acpi_os_initialize1(void); 26acpi_status acpi_os_initialize1(void);
25void init_acpi_device_notify(void); 27void init_acpi_device_notify(void);
diff --git a/drivers/acpi/osi.c b/drivers/acpi/osi.c
new file mode 100644
index 000000000000..849f9d2245ca
--- /dev/null
+++ b/drivers/acpi/osi.c
@@ -0,0 +1,522 @@
1/*
2 * osi.c - _OSI implementation
3 *
4 * Copyright (C) 2016 Intel Corporation
5 * Author: Lv Zheng <lv.zheng@intel.com>
6 *
7 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or (at
12 * your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
18 *
19 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
20 */
21
22/* Uncomment next line to get verbose printout */
23/* #define DEBUG */
24#define pr_fmt(fmt) "ACPI: " fmt
25
26#include <linux/module.h>
27#include <linux/kernel.h>
28#include <linux/acpi.h>
29#include <linux/dmi.h>
30
31#include "internal.h"
32
33
34#define OSI_STRING_LENGTH_MAX 64
35#define OSI_STRING_ENTRIES_MAX 16
36
37struct acpi_osi_entry {
38 char string[OSI_STRING_LENGTH_MAX];
39 bool enable;
40};
41
42static struct acpi_osi_config {
43 u8 default_disabling;
44 unsigned int linux_enable:1;
45 unsigned int linux_dmi:1;
46 unsigned int linux_cmdline:1;
47 unsigned int darwin_enable:1;
48 unsigned int darwin_dmi:1;
49 unsigned int darwin_cmdline:1;
50} osi_config;
51
52static struct acpi_osi_config osi_config;
53static struct acpi_osi_entry
54osi_setup_entries[OSI_STRING_ENTRIES_MAX] __initdata = {
55 {"Module Device", true},
56 {"Processor Device", true},
57 {"3.0 _SCP Extensions", true},
58 {"Processor Aggregator Device", true},
59};
60
61static u32 acpi_osi_handler(acpi_string interface, u32 supported)
62{
63 if (!strcmp("Linux", interface)) {
64 pr_notice_once(FW_BUG
65 "BIOS _OSI(Linux) query %s%s\n",
66 osi_config.linux_enable ? "honored" : "ignored",
67 osi_config.linux_cmdline ? " via cmdline" :
68 osi_config.linux_dmi ? " via DMI" : "");
69 }
70 if (!strcmp("Darwin", interface)) {
71 pr_notice_once(
72 "BIOS _OSI(Darwin) query %s%s\n",
73 osi_config.darwin_enable ? "honored" : "ignored",
74 osi_config.darwin_cmdline ? " via cmdline" :
75 osi_config.darwin_dmi ? " via DMI" : "");
76 }
77
78 return supported;
79}
80
81void __init acpi_osi_setup(char *str)
82{
83 struct acpi_osi_entry *osi;
84 bool enable = true;
85 int i;
86
87 if (!acpi_gbl_create_osi_method)
88 return;
89
90 if (str == NULL || *str == '\0') {
91 pr_info("_OSI method disabled\n");
92 acpi_gbl_create_osi_method = FALSE;
93 return;
94 }
95
96 if (*str == '!') {
97 str++;
98 if (*str == '\0') {
99 /* Do not override acpi_osi=!* */
100 if (!osi_config.default_disabling)
101 osi_config.default_disabling =
102 ACPI_DISABLE_ALL_VENDOR_STRINGS;
103 return;
104 } else if (*str == '*') {
105 osi_config.default_disabling = ACPI_DISABLE_ALL_STRINGS;
106 for (i = 0; i < OSI_STRING_ENTRIES_MAX; i++) {
107 osi = &osi_setup_entries[i];
108 osi->enable = false;
109 }
110 return;
111 } else if (*str == '!') {
112 osi_config.default_disabling = 0;
113 return;
114 }
115 enable = false;
116 }
117
118 for (i = 0; i < OSI_STRING_ENTRIES_MAX; i++) {
119 osi = &osi_setup_entries[i];
120 if (!strcmp(osi->string, str)) {
121 osi->enable = enable;
122 break;
123 } else if (osi->string[0] == '\0') {
124 osi->enable = enable;
125 strncpy(osi->string, str, OSI_STRING_LENGTH_MAX);
126 break;
127 }
128 }
129}
130
131static void __init __acpi_osi_setup_darwin(bool enable)
132{
133 osi_config.darwin_enable = !!enable;
134 if (enable) {
135 acpi_osi_setup("!");
136 acpi_osi_setup("Darwin");
137 } else {
138 acpi_osi_setup("!!");
139 acpi_osi_setup("!Darwin");
140 }
141}
142
143static void __init acpi_osi_setup_darwin(bool enable)
144{
145 /* Override acpi_osi_dmi_blacklisted() */
146 osi_config.darwin_dmi = 0;
147 osi_config.darwin_cmdline = 1;
148 __acpi_osi_setup_darwin(enable);
149}
150
151/*
152 * The story of _OSI(Linux)
153 *
154 * From pre-history through Linux-2.6.22, Linux responded TRUE upon a BIOS
155 * OSI(Linux) query.
156 *
157 * Unfortunately, reference BIOS writers got wind of this and put
158 * OSI(Linux) in their example code, quickly exposing this string as
159 * ill-conceived and opening the door to an un-bounded number of BIOS
160 * incompatibilities.
161 *
162 * For example, OSI(Linux) was used on resume to re-POST a video card on
163 * one system, because Linux at that time could not do a speedy restore in
164 * its native driver. But then upon gaining quick native restore
165 * capability, Linux has no way to tell the BIOS to skip the time-consuming
166 * POST -- putting Linux at a permanent performance disadvantage. On
167 * another system, the BIOS writer used OSI(Linux) to infer native OS
168 * support for IPMI! On other systems, OSI(Linux) simply got in the way of
169 * Linux claiming to be compatible with other operating systems, exposing
170 * BIOS issues such as skipped device initialization.
171 *
172 * So "Linux" turned out to be a really poor chose of OSI string, and from
173 * Linux-2.6.23 onward we respond FALSE.
174 *
175 * BIOS writers should NOT query _OSI(Linux) on future systems. Linux will
176 * complain on the console when it sees it, and return FALSE. To get Linux
177 * to return TRUE for your system will require a kernel source update to
178 * add a DMI entry, or boot with "acpi_osi=Linux"
179 */
180static void __init __acpi_osi_setup_linux(bool enable)
181{
182 osi_config.linux_enable = !!enable;
183 if (enable)
184 acpi_osi_setup("Linux");
185 else
186 acpi_osi_setup("!Linux");
187}
188
189static void __init acpi_osi_setup_linux(bool enable)
190{
191 /* Override acpi_osi_dmi_blacklisted() */
192 osi_config.linux_dmi = 0;
193 osi_config.linux_cmdline = 1;
194 __acpi_osi_setup_linux(enable);
195}
196
197/*
198 * Modify the list of "OS Interfaces" reported to BIOS via _OSI
199 *
200 * empty string disables _OSI
201 * string starting with '!' disables that string
202 * otherwise string is added to list, augmenting built-in strings
203 */
204static void __init acpi_osi_setup_late(void)
205{
206 struct acpi_osi_entry *osi;
207 char *str;
208 int i;
209 acpi_status status;
210
211 if (osi_config.default_disabling) {
212 status = acpi_update_interfaces(osi_config.default_disabling);
213 if (ACPI_SUCCESS(status))
214 pr_info("Disabled all _OSI OS vendors%s\n",
215 osi_config.default_disabling ==
216 ACPI_DISABLE_ALL_STRINGS ?
217 " and feature groups" : "");
218 }
219
220 for (i = 0; i < OSI_STRING_ENTRIES_MAX; i++) {
221 osi = &osi_setup_entries[i];
222 str = osi->string;
223 if (*str == '\0')
224 break;
225 if (osi->enable) {
226 status = acpi_install_interface(str);
227 if (ACPI_SUCCESS(status))
228 pr_info("Added _OSI(%s)\n", str);
229 } else {
230 status = acpi_remove_interface(str);
231 if (ACPI_SUCCESS(status))
232 pr_info("Deleted _OSI(%s)\n", str);
233 }
234 }
235}
236
237static int __init osi_setup(char *str)
238{
239 if (str && !strcmp("Linux", str))
240 acpi_osi_setup_linux(true);
241 else if (str && !strcmp("!Linux", str))
242 acpi_osi_setup_linux(false);
243 else if (str && !strcmp("Darwin", str))
244 acpi_osi_setup_darwin(true);
245 else if (str && !strcmp("!Darwin", str))
246 acpi_osi_setup_darwin(false);
247 else
248 acpi_osi_setup(str);
249
250 return 1;
251}
252__setup("acpi_osi=", osi_setup);
253
254bool acpi_osi_is_win8(void)
255{
256 return acpi_gbl_osi_data >= ACPI_OSI_WIN_8;
257}
258EXPORT_SYMBOL(acpi_osi_is_win8);
259
260static void __init acpi_osi_dmi_darwin(bool enable,
261 const struct dmi_system_id *d)
262{
263 pr_notice("DMI detected to setup _OSI(\"Darwin\"): %s\n", d->ident);
264 osi_config.darwin_dmi = 1;
265 __acpi_osi_setup_darwin(enable);
266}
267
268void __init acpi_osi_dmi_linux(bool enable, const struct dmi_system_id *d)
269{
270 pr_notice("DMI detected to setup _OSI(\"Linux\"): %s\n", d->ident);
271 osi_config.linux_dmi = 1;
272 __acpi_osi_setup_linux(enable);
273}
274
275static int __init dmi_enable_osi_darwin(const struct dmi_system_id *d)
276{
277 acpi_osi_dmi_darwin(true, d);
278
279 return 0;
280}
281
282static int __init dmi_enable_osi_linux(const struct dmi_system_id *d)
283{
284 acpi_osi_dmi_linux(true, d);
285
286 return 0;
287}
288
289static int __init dmi_disable_osi_vista(const struct dmi_system_id *d)
290{
291 pr_notice("DMI detected: %s\n", d->ident);
292 acpi_osi_setup("!Windows 2006");
293 acpi_osi_setup("!Windows 2006 SP1");
294 acpi_osi_setup("!Windows 2006 SP2");
295
296 return 0;
297}
298
299static int __init dmi_disable_osi_win7(const struct dmi_system_id *d)
300{
301 pr_notice("DMI detected: %s\n", d->ident);
302 acpi_osi_setup("!Windows 2009");
303
304 return 0;
305}
306
307static int __init dmi_disable_osi_win8(const struct dmi_system_id *d)
308{
309 pr_notice("DMI detected: %s\n", d->ident);
310 acpi_osi_setup("!Windows 2012");
311
312 return 0;
313}
314
315/*
316 * Linux default _OSI response behavior is determined by this DMI table.
317 *
318 * Note that _OSI("Linux")/_OSI("Darwin") determined here can be overridden
319 * by acpi_osi=!Linux/acpi_osi=!Darwin command line options.
320 */
321static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
322 {
323 .callback = dmi_disable_osi_vista,
324 .ident = "Fujitsu Siemens",
325 .matches = {
326 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
327 DMI_MATCH(DMI_PRODUCT_NAME, "ESPRIMO Mobile V5505"),
328 },
329 },
330 {
331 /*
332 * There have a NVIF method in MSI GX723 DSDT need call by Nvidia
333 * driver (e.g. nouveau) when user press brightness hotkey.
334 * Currently, nouveau driver didn't do the job and it causes there
335 * have a infinite while loop in DSDT when user press hotkey.
336 * We add MSI GX723's dmi information to this table for workaround
337 * this issue.
338 * Will remove MSI GX723 from the table after nouveau grows support.
339 */
340 .callback = dmi_disable_osi_vista,
341 .ident = "MSI GX723",
342 .matches = {
343 DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
344 DMI_MATCH(DMI_PRODUCT_NAME, "GX723"),
345 },
346 },
347 {
348 .callback = dmi_disable_osi_vista,
349 .ident = "Sony VGN-NS10J_S",
350 .matches = {
351 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
352 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-NS10J_S"),
353 },
354 },
355 {
356 .callback = dmi_disable_osi_vista,
357 .ident = "Sony VGN-SR290J",
358 .matches = {
359 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
360 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SR290J"),
361 },
362 },
363 {
364 .callback = dmi_disable_osi_vista,
365 .ident = "VGN-NS50B_L",
366 .matches = {
367 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
368 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-NS50B_L"),
369 },
370 },
371 {
372 .callback = dmi_disable_osi_vista,
373 .ident = "VGN-SR19XN",
374 .matches = {
375 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
376 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SR19XN"),
377 },
378 },
379 {
380 .callback = dmi_disable_osi_vista,
381 .ident = "Toshiba Satellite L355",
382 .matches = {
383 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
384 DMI_MATCH(DMI_PRODUCT_VERSION, "Satellite L355"),
385 },
386 },
387 {
388 .callback = dmi_disable_osi_win7,
389 .ident = "ASUS K50IJ",
390 .matches = {
391 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
392 DMI_MATCH(DMI_PRODUCT_NAME, "K50IJ"),
393 },
394 },
395 {
396 .callback = dmi_disable_osi_vista,
397 .ident = "Toshiba P305D",
398 .matches = {
399 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
400 DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P305D"),
401 },
402 },
403 {
404 .callback = dmi_disable_osi_vista,
405 .ident = "Toshiba NB100",
406 .matches = {
407 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
408 DMI_MATCH(DMI_PRODUCT_NAME, "NB100"),
409 },
410 },
411
412 /*
413 * The wireless hotkey does not work on those machines when
414 * returning true for _OSI("Windows 2012")
415 */
416 {
417 .callback = dmi_disable_osi_win8,
418 .ident = "Dell Inspiron 7737",
419 .matches = {
420 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
421 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 7737"),
422 },
423 },
424 {
425 .callback = dmi_disable_osi_win8,
426 .ident = "Dell Inspiron 7537",
427 .matches = {
428 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
429 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 7537"),
430 },
431 },
432 {
433 .callback = dmi_disable_osi_win8,
434 .ident = "Dell Inspiron 5437",
435 .matches = {
436 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
437 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5437"),
438 },
439 },
440 {
441 .callback = dmi_disable_osi_win8,
442 .ident = "Dell Inspiron 3437",
443 .matches = {
444 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
445 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 3437"),
446 },
447 },
448 {
449 .callback = dmi_disable_osi_win8,
450 .ident = "Dell Vostro 3446",
451 .matches = {
452 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
453 DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 3446"),
454 },
455 },
456 {
457 .callback = dmi_disable_osi_win8,
458 .ident = "Dell Vostro 3546",
459 .matches = {
460 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
461 DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 3546"),
462 },
463 },
464
465 /*
466 * BIOS invocation of _OSI(Linux) is almost always a BIOS bug.
467 * Linux ignores it, except for the machines enumerated below.
468 */
469
470 /*
471 * Without this this EEEpc exports a non working WMI interface, with
472 * this it exports a working "good old" eeepc_laptop interface, fixing
473 * both brightness control, and rfkill not working.
474 */
475 {
476 .callback = dmi_enable_osi_linux,
477 .ident = "Asus EEE PC 1015PX",
478 .matches = {
479 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer INC."),
480 DMI_MATCH(DMI_PRODUCT_NAME, "1015PX"),
481 },
482 },
483
484 /*
485 * Enable _OSI("Darwin") for all apple platforms.
486 */
487 {
488 .callback = dmi_enable_osi_darwin,
489 .ident = "Apple hardware",
490 .matches = {
491 DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
492 },
493 },
494 {
495 .callback = dmi_enable_osi_darwin,
496 .ident = "Apple hardware",
497 .matches = {
498 DMI_MATCH(DMI_SYS_VENDOR, "Apple Computer, Inc."),
499 },
500 },
501 {}
502};
503
504static __init void acpi_osi_dmi_blacklisted(void)
505{
506 dmi_check_system(acpi_osi_dmi_table);
507}
508
509int __init early_acpi_osi_init(void)
510{
511 acpi_osi_dmi_blacklisted();
512
513 return 0;
514}
515
516int __init acpi_osi_init(void)
517{
518 acpi_install_interface_handler(acpi_osi_handler);
519 acpi_osi_setup_late();
520
521 return 0;
522}
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 134051689d72..29af6b40c93f 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -96,74 +96,6 @@ struct acpi_ioremap {
96static LIST_HEAD(acpi_ioremaps); 96static LIST_HEAD(acpi_ioremaps);
97static DEFINE_MUTEX(acpi_ioremap_lock); 97static DEFINE_MUTEX(acpi_ioremap_lock);
98 98
99static void __init acpi_osi_setup_late(void);
100
101/*
102 * The story of _OSI(Linux)
103 *
104 * From pre-history through Linux-2.6.22,
105 * Linux responded TRUE upon a BIOS OSI(Linux) query.
106 *
107 * Unfortunately, reference BIOS writers got wind of this
108 * and put OSI(Linux) in their example code, quickly exposing
109 * this string as ill-conceived and opening the door to
110 * an un-bounded number of BIOS incompatibilities.
111 *
112 * For example, OSI(Linux) was used on resume to re-POST a
113 * video card on one system, because Linux at that time
114 * could not do a speedy restore in its native driver.
115 * But then upon gaining quick native restore capability,
116 * Linux has no way to tell the BIOS to skip the time-consuming
117 * POST -- putting Linux at a permanent performance disadvantage.
118 * On another system, the BIOS writer used OSI(Linux)
119 * to infer native OS support for IPMI! On other systems,
120 * OSI(Linux) simply got in the way of Linux claiming to
121 * be compatible with other operating systems, exposing
122 * BIOS issues such as skipped device initialization.
123 *
124 * So "Linux" turned out to be a really poor chose of
125 * OSI string, and from Linux-2.6.23 onward we respond FALSE.
126 *
127 * BIOS writers should NOT query _OSI(Linux) on future systems.
128 * Linux will complain on the console when it sees it, and return FALSE.
129 * To get Linux to return TRUE for your system will require
130 * a kernel source update to add a DMI entry,
131 * or boot with "acpi_osi=Linux"
132 */
133
134static struct acpi_osi_config {
135 unsigned int linux_enable:1;
136 unsigned int linux_dmi:1;
137 unsigned int linux_cmdline:1;
138 unsigned int darwin_enable:1;
139 unsigned int darwin_dmi:1;
140 unsigned int darwin_cmdline:1;
141 u8 default_disabling;
142} osi_config;
143
144static u32 acpi_osi_handler(acpi_string interface, u32 supported)
145{
146 if (!strcmp("Linux", interface)) {
147
148 pr_notice_once(FW_BUG PREFIX
149 "BIOS _OSI(Linux) query %s%s\n",
150 osi_config.linux_enable ? "honored" : "ignored",
151 osi_config.linux_cmdline ? " via cmdline" :
152 osi_config.linux_dmi ? " via DMI" : "");
153 }
154
155 if (!strcmp("Darwin", interface)) {
156
157 pr_notice_once(PREFIX
158 "BIOS _OSI(Darwin) query %s%s\n",
159 osi_config.darwin_enable ? "honored" : "ignored",
160 osi_config.darwin_cmdline ? " via cmdline" :
161 osi_config.darwin_dmi ? " via DMI" : "");
162 }
163
164 return supported;
165}
166
167static void __init acpi_request_region (struct acpi_generic_address *gas, 99static void __init acpi_request_region (struct acpi_generic_address *gas,
168 unsigned int length, char *desc) 100 unsigned int length, char *desc)
169{ 101{
@@ -1719,185 +1651,6 @@ static int __init acpi_os_name_setup(char *str)
1719 1651
1720__setup("acpi_os_name=", acpi_os_name_setup); 1652__setup("acpi_os_name=", acpi_os_name_setup);
1721 1653
1722#define OSI_STRING_LENGTH_MAX 64
1723#define OSI_STRING_ENTRIES_MAX 16
1724
1725struct acpi_osi_entry {
1726 char string[OSI_STRING_LENGTH_MAX];
1727 bool enable;
1728};
1729
1730static struct acpi_osi_entry
1731 osi_setup_entries[OSI_STRING_ENTRIES_MAX] __initdata = {
1732 {"Module Device", true},
1733 {"Processor Device", true},
1734 {"3.0 _SCP Extensions", true},
1735 {"Processor Aggregator Device", true},
1736};
1737
1738void __init acpi_osi_setup(char *str)
1739{
1740 struct acpi_osi_entry *osi;
1741 bool enable = true;
1742 int i;
1743
1744 if (!acpi_gbl_create_osi_method)
1745 return;
1746
1747 if (str == NULL || *str == '\0') {
1748 pr_info(PREFIX "_OSI method disabled\n");
1749 acpi_gbl_create_osi_method = FALSE;
1750 return;
1751 }
1752
1753 if (*str == '!') {
1754 str++;
1755 if (*str == '\0') {
1756 /* Do not override acpi_osi=!* */
1757 if (!osi_config.default_disabling)
1758 osi_config.default_disabling =
1759 ACPI_DISABLE_ALL_VENDOR_STRINGS;
1760 return;
1761 } else if (*str == '*') {
1762 osi_config.default_disabling = ACPI_DISABLE_ALL_STRINGS;
1763 for (i = 0; i < OSI_STRING_ENTRIES_MAX; i++) {
1764 osi = &osi_setup_entries[i];
1765 osi->enable = false;
1766 }
1767 return;
1768 } else if (*str == '!') {
1769 osi_config.default_disabling = 0;
1770 return;
1771 }
1772 enable = false;
1773 }
1774
1775 for (i = 0; i < OSI_STRING_ENTRIES_MAX; i++) {
1776 osi = &osi_setup_entries[i];
1777 if (!strcmp(osi->string, str)) {
1778 osi->enable = enable;
1779 break;
1780 } else if (osi->string[0] == '\0') {
1781 osi->enable = enable;
1782 strncpy(osi->string, str, OSI_STRING_LENGTH_MAX);
1783 break;
1784 }
1785 }
1786}
1787
1788static void __init __acpi_osi_setup_darwin(bool enable)
1789{
1790 osi_config.darwin_enable = !!enable;
1791 if (enable) {
1792 acpi_osi_setup("!");
1793 acpi_osi_setup("Darwin");
1794 } else {
1795 acpi_osi_setup("!!");
1796 acpi_osi_setup("!Darwin");
1797 }
1798}
1799
1800static void __init acpi_osi_setup_darwin(bool enable)
1801{
1802 osi_config.darwin_cmdline = 1;
1803 osi_config.darwin_dmi = 0;
1804 __acpi_osi_setup_darwin(enable);
1805}
1806
1807void __init acpi_osi_dmi_darwin(bool enable, const struct dmi_system_id *d)
1808{
1809 pr_notice(PREFIX "DMI detected to setup _OSI(\"Darwin\"): %s\n",
1810 d->ident);
1811 osi_config.darwin_dmi = 1;
1812 __acpi_osi_setup_darwin(enable);
1813}
1814
1815static void __init __acpi_osi_setup_linux(bool enable)
1816{
1817 osi_config.linux_enable = !!enable;
1818 if (enable)
1819 acpi_osi_setup("Linux");
1820 else
1821 acpi_osi_setup("!Linux");
1822}
1823
1824static void __init acpi_osi_setup_linux(bool enable)
1825{
1826 osi_config.linux_cmdline = 1;
1827 osi_config.linux_dmi = 0;
1828 __acpi_osi_setup_linux(enable);
1829}
1830
1831void __init acpi_osi_dmi_linux(bool enable, const struct dmi_system_id *d)
1832{
1833 pr_notice(PREFIX "DMI detected to setup _OSI(\"Linux\"): %s\n",
1834 d->ident);
1835 osi_config.linux_dmi = 1;
1836 __acpi_osi_setup_linux(enable);
1837}
1838
1839/*
1840 * Modify the list of "OS Interfaces" reported to BIOS via _OSI
1841 *
1842 * empty string disables _OSI
1843 * string starting with '!' disables that string
1844 * otherwise string is added to list, augmenting built-in strings
1845 */
1846static void __init acpi_osi_setup_late(void)
1847{
1848 struct acpi_osi_entry *osi;
1849 char *str;
1850 int i;
1851 acpi_status status;
1852
1853 if (osi_config.default_disabling) {
1854 status = acpi_update_interfaces(osi_config.default_disabling);
1855
1856 if (ACPI_SUCCESS(status))
1857 pr_info(PREFIX "Disabled all _OSI OS vendors%s\n",
1858 osi_config.default_disabling ==
1859 ACPI_DISABLE_ALL_STRINGS ?
1860 " and feature groups" : "");
1861 }
1862
1863 for (i = 0; i < OSI_STRING_ENTRIES_MAX; i++) {
1864 osi = &osi_setup_entries[i];
1865 str = osi->string;
1866
1867 if (*str == '\0')
1868 break;
1869 if (osi->enable) {
1870 status = acpi_install_interface(str);
1871
1872 if (ACPI_SUCCESS(status))
1873 pr_info(PREFIX "Added _OSI(%s)\n", str);
1874 } else {
1875 status = acpi_remove_interface(str);
1876
1877 if (ACPI_SUCCESS(status))
1878 pr_info(PREFIX "Deleted _OSI(%s)\n", str);
1879 }
1880 }
1881}
1882
1883static int __init osi_setup(char *str)
1884{
1885 if (str && !strcmp("Linux", str))
1886 acpi_osi_setup_linux(true);
1887 else if (str && !strcmp("!Linux", str))
1888 acpi_osi_setup_linux(false);
1889 else if (str && !strcmp("Darwin", str))
1890 acpi_osi_setup_darwin(true);
1891 else if (str && !strcmp("!Darwin", str))
1892 acpi_osi_setup_darwin(false);
1893 else
1894 acpi_osi_setup(str);
1895
1896 return 1;
1897}
1898
1899__setup("acpi_osi=", osi_setup);
1900
1901/* 1654/*
1902 * Disable the auto-serialization of named objects creation methods. 1655 * Disable the auto-serialization of named objects creation methods.
1903 * 1656 *
@@ -2017,12 +1770,6 @@ int acpi_resources_are_enforced(void)
2017} 1770}
2018EXPORT_SYMBOL(acpi_resources_are_enforced); 1771EXPORT_SYMBOL(acpi_resources_are_enforced);
2019 1772
2020bool acpi_osi_is_win8(void)
2021{
2022 return acpi_gbl_osi_data >= ACPI_OSI_WIN_8;
2023}
2024EXPORT_SYMBOL(acpi_osi_is_win8);
2025
2026/* 1773/*
2027 * Deallocate the memory for a spinlock. 1774 * Deallocate the memory for a spinlock.
2028 */ 1775 */
@@ -2188,8 +1935,7 @@ acpi_status __init acpi_os_initialize1(void)
2188 BUG_ON(!kacpid_wq); 1935 BUG_ON(!kacpid_wq);
2189 BUG_ON(!kacpi_notify_wq); 1936 BUG_ON(!kacpi_notify_wq);
2190 BUG_ON(!kacpi_hotplug_wq); 1937 BUG_ON(!kacpi_hotplug_wq);
2191 acpi_install_interface_handler(acpi_osi_handler); 1938 acpi_osi_init();
2192 acpi_osi_setup_late();
2193 return AE_OK; 1939 return AE_OK;
2194} 1940}
2195 1941
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index bf0adc611aad..58f707a399c2 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -359,8 +359,6 @@ extern bool wmi_has_guid(const char *guid);
359extern char acpi_video_backlight_string[]; 359extern char acpi_video_backlight_string[];
360extern long acpi_is_video_device(acpi_handle handle); 360extern long acpi_is_video_device(acpi_handle handle);
361extern int acpi_blacklisted(void); 361extern int acpi_blacklisted(void);
362extern void acpi_osi_dmi_linux(bool enable, const struct dmi_system_id *d);
363extern void acpi_osi_dmi_darwin(bool enable, const struct dmi_system_id *d);
364extern void acpi_osi_setup(char *str); 362extern void acpi_osi_setup(char *str);
365extern bool acpi_osi_is_win8(void); 363extern bool acpi_osi_is_win8(void);
366 364
generated by cgit v1.2.2 (git 2.25.0) at 2025-08-28 21:43:29 -0400