| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-Id: <0f6643ac324efd96c51667fbc664234fad53094d.1462263979.git.lv.zheng@intel.com>
Date: Tue, 3 May 2016 16:49:01 +0800
From: Lv Zheng <lv.zheng@...el.com>
To: "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
"Rafael J. Wysocki" <rjw@...ysocki.net>,
Len Brown <len.brown@...el.com>
Cc: Lv Zheng <lv.zheng@...el.com>, Lv Zheng <zetalog@...il.com>,
<linux-kernel@...r.kernel.org>, linux-acpi@...r.kernel.org
Subject: [PATCH v3 7/7] 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@...ner.de>
Tested-by: Chen Yu <yu.c.chen@...el.com>
Signed-off-by: Lv Zheng <lv.zheng@...el.com>
---
drivers/acpi/Makefile | 2 +-
drivers/acpi/blacklist.c | 219 +------------------
drivers/acpi/internal.h | 2 +
drivers/acpi/osi.c | 522 ++++++++++++++++++++++++++++++++++++++++++++++
drivers/acpi/osl.c | 256 +----------------------
include/linux/acpi.h | 2 -
6 files changed, 531 insertions(+), 472 deletions(-)
create mode 100644 drivers/acpi/osi.c
diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile
index 5a65f85..251ce85 100644
--- a/drivers/acpi/Makefile
+++ b/drivers/acpi/Makefile
@@ -18,7 +18,7 @@ obj-$(CONFIG_ACPI) += acpi.o \
acpica/
# All the builtin files are in the "acpi." module_param namespace.
-acpi-y += osl.o utils.o reboot.o
+acpi-y += osi.o osl.o utils.o reboot.o
acpi-y += nvs.o
# Power management related files
diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c
index ba1601d..bdc67ba 100644
--- a/drivers/acpi/blacklist.c
+++ b/drivers/acpi/blacklist.c
@@ -3,7 +3,7 @@
*
* Check to see if the given machine has a known bad ACPI BIOS
* or if the BIOS is too old.
- * Check given machine against acpi_osi_dmi_table[].
+ * Check given machine against acpi_rev_dmi_table[].
*
* Copyright (C) 2004 Len Brown <len.brown@...el.com>
* Copyright (C) 2002 Andy Grover <andrew.grover@...el.com>
@@ -47,7 +47,7 @@ struct acpi_blacklist_item {
u32 is_critical_error;
};
-static struct dmi_system_id acpi_osi_dmi_table[] __initdata;
+static struct dmi_system_id acpi_rev_dmi_table[] __initdata;
/*
* POLICY: If *anything* doesn't work, put it on the blacklist.
@@ -128,41 +128,12 @@ int __init acpi_blacklisted(void)
}
}
- dmi_check_system(acpi_osi_dmi_table);
+ (void)early_acpi_osi_init();
+ dmi_check_system(acpi_rev_dmi_table);
return blacklisted;
}
#ifdef CONFIG_DMI
-static int __init dmi_enable_osi_darwin(const struct dmi_system_id *d)
-{
- acpi_osi_dmi_darwin(true, d);
- return 0;
-}
-static int __init dmi_enable_osi_linux(const struct dmi_system_id *d)
-{
- acpi_osi_dmi_linux(true, d);
- return 0;
-}
-static int __init dmi_disable_osi_vista(const struct dmi_system_id *d)
-{
- pr_notice(PREFIX "DMI detected: %s\n", d->ident);
- acpi_osi_setup("!Windows 2006");
- acpi_osi_setup("!Windows 2006 SP1");
- acpi_osi_setup("!Windows 2006 SP2");
- return 0;
-}
-static int __init dmi_disable_osi_win7(const struct dmi_system_id *d)
-{
- pr_notice(PREFIX "DMI detected: %s\n", d->ident);
- acpi_osi_setup("!Windows 2009");
- return 0;
-}
-static int __init dmi_disable_osi_win8(const struct dmi_system_id *d)
-{
- pr_notice(PREFIX "DMI detected: %s\n", d->ident);
- acpi_osi_setup("!Windows 2012");
- return 0;
-}
#ifdef CONFIG_ACPI_REV_OVERRIDE_POSSIBLE
static int __init dmi_enable_rev_override(const struct dmi_system_id *d)
{
@@ -173,187 +144,7 @@ static int __init dmi_enable_rev_override(const struct dmi_system_id *d)
}
#endif
-static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
- {
- .callback = dmi_disable_osi_vista,
- .ident = "Fujitsu Siemens",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
- DMI_MATCH(DMI_PRODUCT_NAME, "ESPRIMO Mobile V5505"),
- },
- },
- {
- /*
- * There have a NVIF method in MSI GX723 DSDT need call by Nvidia
- * driver (e.g. nouveau) when user press brightness hotkey.
- * Currently, nouveau driver didn't do the job and it causes there
- * have a infinite while loop in DSDT when user press hotkey.
- * We add MSI GX723's dmi information to this table for workaround
- * this issue.
- * Will remove MSI GX723 from the table after nouveau grows support.
- */
- .callback = dmi_disable_osi_vista,
- .ident = "MSI GX723",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
- DMI_MATCH(DMI_PRODUCT_NAME, "GX723"),
- },
- },
- {
- .callback = dmi_disable_osi_vista,
- .ident = "Sony VGN-NS10J_S",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
- DMI_MATCH(DMI_PRODUCT_NAME, "VGN-NS10J_S"),
- },
- },
- {
- .callback = dmi_disable_osi_vista,
- .ident = "Sony VGN-SR290J",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
- DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SR290J"),
- },
- },
- {
- .callback = dmi_disable_osi_vista,
- .ident = "VGN-NS50B_L",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
- DMI_MATCH(DMI_PRODUCT_NAME, "VGN-NS50B_L"),
- },
- },
- {
- .callback = dmi_disable_osi_vista,
- .ident = "VGN-SR19XN",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
- DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SR19XN"),
- },
- },
- {
- .callback = dmi_disable_osi_vista,
- .ident = "Toshiba Satellite L355",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
- DMI_MATCH(DMI_PRODUCT_VERSION, "Satellite L355"),
- },
- },
- {
- .callback = dmi_disable_osi_win7,
- .ident = "ASUS K50IJ",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
- DMI_MATCH(DMI_PRODUCT_NAME, "K50IJ"),
- },
- },
- {
- .callback = dmi_disable_osi_vista,
- .ident = "Toshiba P305D",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
- DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P305D"),
- },
- },
- {
- .callback = dmi_disable_osi_vista,
- .ident = "Toshiba NB100",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
- DMI_MATCH(DMI_PRODUCT_NAME, "NB100"),
- },
- },
-
- /*
- * The wireless hotkey does not work on those machines when
- * returning true for _OSI("Windows 2012")
- */
- {
- .callback = dmi_disable_osi_win8,
- .ident = "Dell Inspiron 7737",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
- DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 7737"),
- },
- },
- {
- .callback = dmi_disable_osi_win8,
- .ident = "Dell Inspiron 7537",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
- DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 7537"),
- },
- },
- {
- .callback = dmi_disable_osi_win8,
- .ident = "Dell Inspiron 5437",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
- DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5437"),
- },
- },
- {
- .callback = dmi_disable_osi_win8,
- .ident = "Dell Inspiron 3437",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
- DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 3437"),
- },
- },
- {
- .callback = dmi_disable_osi_win8,
- .ident = "Dell Vostro 3446",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
- DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 3446"),
- },
- },
- {
- .callback = dmi_disable_osi_win8,
- .ident = "Dell Vostro 3546",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
- DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 3546"),
- },
- },
-
- /*
- * BIOS invocation of _OSI(Linux) is almost always a BIOS bug.
- * Linux ignores it, except for the machines enumerated below.
- */
-
- /*
- * Without this this EEEpc exports a non working WMI interface, with
- * this it exports a working "good old" eeepc_laptop interface, fixing
- * both brightness control, and rfkill not working.
- */
- {
- .callback = dmi_enable_osi_linux,
- .ident = "Asus EEE PC 1015PX",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer INC."),
- DMI_MATCH(DMI_PRODUCT_NAME, "1015PX"),
- },
- },
-
- /*
- * Enable _OSI("Darwin") for all apple platforms.
- */
- {
- .callback = dmi_enable_osi_darwin,
- .ident = "Apple hardware",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
- },
- },
- {
- .callback = dmi_enable_osi_darwin,
- .ident = "Apple hardware",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Apple Computer, Inc."),
- },
- },
-
+static struct dmi_system_id acpi_rev_dmi_table[] __initdata = {
#ifdef CONFIG_ACPI_REV_OVERRIDE_POSSIBLE
/*
* DELL XPS 13 (2015) switches sound between HDA and I2S
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index 1b0e6fd..9bb0773 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -20,6 +20,8 @@
#define PREFIX "ACPI: "
+int early_acpi_osi_init(void);
+int acpi_osi_init(void);
acpi_status acpi_os_initialize1(void);
void init_acpi_device_notify(void);
int acpi_scan_init(void);
diff --git a/drivers/acpi/osi.c b/drivers/acpi/osi.c
new file mode 100644
index 0000000..849f9d2
--- /dev/null
+++ b/drivers/acpi/osi.c
@@ -0,0 +1,522 @@
+/*
+ * osi.c - _OSI implementation
+ *
+ * Copyright (C) 2016 Intel Corporation
+ * Author: Lv Zheng <lv.zheng@...el.com>
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at
+ * your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ */
+
+/* Uncomment next line to get verbose printout */
+/* #define DEBUG */
+#define pr_fmt(fmt) "ACPI: " fmt
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/acpi.h>
+#include <linux/dmi.h>
+
+#include "internal.h"
+
+
+#define OSI_STRING_LENGTH_MAX 64
+#define OSI_STRING_ENTRIES_MAX 16
+
+struct acpi_osi_entry {
+ char string[OSI_STRING_LENGTH_MAX];
+ bool enable;
+};
+
+static struct acpi_osi_config {
+ u8 default_disabling;
+ unsigned int linux_enable:1;
+ unsigned int linux_dmi:1;
+ unsigned int linux_cmdline:1;
+ unsigned int darwin_enable:1;
+ unsigned int darwin_dmi:1;
+ unsigned int darwin_cmdline:1;
+} osi_config;
+
+static struct acpi_osi_config osi_config;
+static struct acpi_osi_entry
+osi_setup_entries[OSI_STRING_ENTRIES_MAX] __initdata = {
+ {"Module Device", true},
+ {"Processor Device", true},
+ {"3.0 _SCP Extensions", true},
+ {"Processor Aggregator Device", true},
+};
+
+static u32 acpi_osi_handler(acpi_string interface, u32 supported)
+{
+ if (!strcmp("Linux", interface)) {
+ pr_notice_once(FW_BUG
+ "BIOS _OSI(Linux) query %s%s\n",
+ osi_config.linux_enable ? "honored" : "ignored",
+ osi_config.linux_cmdline ? " via cmdline" :
+ osi_config.linux_dmi ? " via DMI" : "");
+ }
+ if (!strcmp("Darwin", interface)) {
+ pr_notice_once(
+ "BIOS _OSI(Darwin) query %s%s\n",
+ osi_config.darwin_enable ? "honored" : "ignored",
+ osi_config.darwin_cmdline ? " via cmdline" :
+ osi_config.darwin_dmi ? " via DMI" : "");
+ }
+
+ return supported;
+}
+
+void __init acpi_osi_setup(char *str)
+{
+ struct acpi_osi_entry *osi;
+ bool enable = true;
+ int i;
+
+ if (!acpi_gbl_create_osi_method)
+ return;
+
+ if (str == NULL || *str == '\0') {
+ pr_info("_OSI method disabled\n");
+ acpi_gbl_create_osi_method = FALSE;
+ return;
+ }
+
+ if (*str == '!') {
+ str++;
+ if (*str == '\0') {
+ /* Do not override acpi_osi=!* */
+ if (!osi_config.default_disabling)
+ osi_config.default_disabling =
+ ACPI_DISABLE_ALL_VENDOR_STRINGS;
+ return;
+ } else if (*str == '*') {
+ osi_config.default_disabling = ACPI_DISABLE_ALL_STRINGS;
+ for (i = 0; i < OSI_STRING_ENTRIES_MAX; i++) {
+ osi = &osi_setup_entries[i];
+ osi->enable = false;
+ }
+ return;
+ } else if (*str == '!') {
+ osi_config.default_disabling = 0;
+ return;
+ }
+ enable = false;
+ }
+
+ for (i = 0; i < OSI_STRING_ENTRIES_MAX; i++) {
+ osi = &osi_setup_entries[i];
+ if (!strcmp(osi->string, str)) {
+ osi->enable = enable;
+ break;
+ } else if (osi->string[0] == '\0') {
+ osi->enable = enable;
+ strncpy(osi->string, str, OSI_STRING_LENGTH_MAX);
+ break;
+ }
+ }
+}
+
+static void __init __acpi_osi_setup_darwin(bool enable)
+{
+ osi_config.darwin_enable = !!enable;
+ if (enable) {
+ acpi_osi_setup("!");
+ acpi_osi_setup("Darwin");
+ } else {
+ acpi_osi_setup("!!");
+ acpi_osi_setup("!Darwin");
+ }
+}
+
+static void __init acpi_osi_setup_darwin(bool enable)
+{
+ /* Override acpi_osi_dmi_blacklisted() */
+ osi_config.darwin_dmi = 0;
+ osi_config.darwin_cmdline = 1;
+ __acpi_osi_setup_darwin(enable);
+}
+
+/*
+ * The story of _OSI(Linux)
+ *
+ * From pre-history through Linux-2.6.22, Linux responded TRUE upon a BIOS
+ * OSI(Linux) query.
+ *
+ * Unfortunately, reference BIOS writers got wind of this and put
+ * OSI(Linux) in their example code, quickly exposing this string as
+ * ill-conceived and opening the door to an un-bounded number of BIOS
+ * incompatibilities.
+ *
+ * For example, OSI(Linux) was used on resume to re-POST a video card on
+ * one system, because Linux at that time could not do a speedy restore in
+ * its native driver. But then upon gaining quick native restore
+ * capability, Linux has no way to tell the BIOS to skip the time-consuming
+ * POST -- putting Linux at a permanent performance disadvantage. On
+ * another system, the BIOS writer used OSI(Linux) to infer native OS
+ * support for IPMI! On other systems, OSI(Linux) simply got in the way of
+ * Linux claiming to be compatible with other operating systems, exposing
+ * BIOS issues such as skipped device initialization.
+ *
+ * So "Linux" turned out to be a really poor chose of OSI string, and from
+ * Linux-2.6.23 onward we respond FALSE.
+ *
+ * BIOS writers should NOT query _OSI(Linux) on future systems. Linux will
+ * complain on the console when it sees it, and return FALSE. To get Linux
+ * to return TRUE for your system will require a kernel source update to
+ * add a DMI entry, or boot with "acpi_osi=Linux"
+ */
+static void __init __acpi_osi_setup_linux(bool enable)
+{
+ osi_config.linux_enable = !!enable;
+ if (enable)
+ acpi_osi_setup("Linux");
+ else
+ acpi_osi_setup("!Linux");
+}
+
+static void __init acpi_osi_setup_linux(bool enable)
+{
+ /* Override acpi_osi_dmi_blacklisted() */
+ osi_config.linux_dmi = 0;
+ osi_config.linux_cmdline = 1;
+ __acpi_osi_setup_linux(enable);
+}
+
+/*
+ * Modify the list of "OS Interfaces" reported to BIOS via _OSI
+ *
+ * empty string disables _OSI
+ * string starting with '!' disables that string
+ * otherwise string is added to list, augmenting built-in strings
+ */
+static void __init acpi_osi_setup_late(void)
+{
+ struct acpi_osi_entry *osi;
+ char *str;
+ int i;
+ acpi_status status;
+
+ if (osi_config.default_disabling) {
+ status = acpi_update_interfaces(osi_config.default_disabling);
+ if (ACPI_SUCCESS(status))
+ pr_info("Disabled all _OSI OS vendors%s\n",
+ osi_config.default_disabling ==
+ ACPI_DISABLE_ALL_STRINGS ?
+ " and feature groups" : "");
+ }
+
+ for (i = 0; i < OSI_STRING_ENTRIES_MAX; i++) {
+ osi = &osi_setup_entries[i];
+ str = osi->string;
+ if (*str == '\0')
+ break;
+ if (osi->enable) {
+ status = acpi_install_interface(str);
+ if (ACPI_SUCCESS(status))
+ pr_info("Added _OSI(%s)\n", str);
+ } else {
+ status = acpi_remove_interface(str);
+ if (ACPI_SUCCESS(status))
+ pr_info("Deleted _OSI(%s)\n", str);
+ }
+ }
+}
+
+static int __init osi_setup(char *str)
+{
+ if (str && !strcmp("Linux", str))
+ acpi_osi_setup_linux(true);
+ else if (str && !strcmp("!Linux", str))
+ acpi_osi_setup_linux(false);
+ else if (str && !strcmp("Darwin", str))
+ acpi_osi_setup_darwin(true);
+ else if (str && !strcmp("!Darwin", str))
+ acpi_osi_setup_darwin(false);
+ else
+ acpi_osi_setup(str);
+
+ return 1;
+}
+__setup("acpi_osi=", osi_setup);
+
+bool acpi_osi_is_win8(void)
+{
+ return acpi_gbl_osi_data >= ACPI_OSI_WIN_8;
+}
+EXPORT_SYMBOL(acpi_osi_is_win8);
+
+static void __init acpi_osi_dmi_darwin(bool enable,
+ const struct dmi_system_id *d)
+{
+ pr_notice("DMI detected to setup _OSI(\"Darwin\"): %s\n", d->ident);
+ osi_config.darwin_dmi = 1;
+ __acpi_osi_setup_darwin(enable);
+}
+
+void __init acpi_osi_dmi_linux(bool enable, const struct dmi_system_id *d)
+{
+ pr_notice("DMI detected to setup _OSI(\"Linux\"): %s\n", d->ident);
+ osi_config.linux_dmi = 1;
+ __acpi_osi_setup_linux(enable);
+}
+
+static int __init dmi_enable_osi_darwin(const struct dmi_system_id *d)
+{
+ acpi_osi_dmi_darwin(true, d);
+
+ return 0;
+}
+
+static int __init dmi_enable_osi_linux(const struct dmi_system_id *d)
+{
+ acpi_osi_dmi_linux(true, d);
+
+ return 0;
+}
+
+static int __init dmi_disable_osi_vista(const struct dmi_system_id *d)
+{
+ pr_notice("DMI detected: %s\n", d->ident);
+ acpi_osi_setup("!Windows 2006");
+ acpi_osi_setup("!Windows 2006 SP1");
+ acpi_osi_setup("!Windows 2006 SP2");
+
+ return 0;
+}
+
+static int __init dmi_disable_osi_win7(const struct dmi_system_id *d)
+{
+ pr_notice("DMI detected: %s\n", d->ident);
+ acpi_osi_setup("!Windows 2009");
+
+ return 0;
+}
+
+static int __init dmi_disable_osi_win8(const struct dmi_system_id *d)
+{
+ pr_notice("DMI detected: %s\n", d->ident);
+ acpi_osi_setup("!Windows 2012");
+
+ return 0;
+}
+
+/*
+ * Linux default _OSI response behavior is determined by this DMI table.
+ *
+ * Note that _OSI("Linux")/_OSI("Darwin") determined here can be overridden
+ * by acpi_osi=!Linux/acpi_osi=!Darwin command line options.
+ */
+static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
+ {
+ .callback = dmi_disable_osi_vista,
+ .ident = "Fujitsu Siemens",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "ESPRIMO Mobile V5505"),
+ },
+ },
+ {
+ /*
+ * There have a NVIF method in MSI GX723 DSDT need call by Nvidia
+ * driver (e.g. nouveau) when user press brightness hotkey.
+ * Currently, nouveau driver didn't do the job and it causes there
+ * have a infinite while loop in DSDT when user press hotkey.
+ * We add MSI GX723's dmi information to this table for workaround
+ * this issue.
+ * Will remove MSI GX723 from the table after nouveau grows support.
+ */
+ .callback = dmi_disable_osi_vista,
+ .ident = "MSI GX723",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "GX723"),
+ },
+ },
+ {
+ .callback = dmi_disable_osi_vista,
+ .ident = "Sony VGN-NS10J_S",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "VGN-NS10J_S"),
+ },
+ },
+ {
+ .callback = dmi_disable_osi_vista,
+ .ident = "Sony VGN-SR290J",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SR290J"),
+ },
+ },
+ {
+ .callback = dmi_disable_osi_vista,
+ .ident = "VGN-NS50B_L",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "VGN-NS50B_L"),
+ },
+ },
+ {
+ .callback = dmi_disable_osi_vista,
+ .ident = "VGN-SR19XN",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SR19XN"),
+ },
+ },
+ {
+ .callback = dmi_disable_osi_vista,
+ .ident = "Toshiba Satellite L355",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "Satellite L355"),
+ },
+ },
+ {
+ .callback = dmi_disable_osi_win7,
+ .ident = "ASUS K50IJ",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "K50IJ"),
+ },
+ },
+ {
+ .callback = dmi_disable_osi_vista,
+ .ident = "Toshiba P305D",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P305D"),
+ },
+ },
+ {
+ .callback = dmi_disable_osi_vista,
+ .ident = "Toshiba NB100",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "NB100"),
+ },
+ },
+
+ /*
+ * The wireless hotkey does not work on those machines when
+ * returning true for _OSI("Windows 2012")
+ */
+ {
+ .callback = dmi_disable_osi_win8,
+ .ident = "Dell Inspiron 7737",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 7737"),
+ },
+ },
+ {
+ .callback = dmi_disable_osi_win8,
+ .ident = "Dell Inspiron 7537",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 7537"),
+ },
+ },
+ {
+ .callback = dmi_disable_osi_win8,
+ .ident = "Dell Inspiron 5437",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5437"),
+ },
+ },
+ {
+ .callback = dmi_disable_osi_win8,
+ .ident = "Dell Inspiron 3437",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 3437"),
+ },
+ },
+ {
+ .callback = dmi_disable_osi_win8,
+ .ident = "Dell Vostro 3446",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 3446"),
+ },
+ },
+ {
+ .callback = dmi_disable_osi_win8,
+ .ident = "Dell Vostro 3546",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 3546"),
+ },
+ },
+
+ /*
+ * BIOS invocation of _OSI(Linux) is almost always a BIOS bug.
+ * Linux ignores it, except for the machines enumerated below.
+ */
+
+ /*
+ * Without this this EEEpc exports a non working WMI interface, with
+ * this it exports a working "good old" eeepc_laptop interface, fixing
+ * both brightness control, and rfkill not working.
+ */
+ {
+ .callback = dmi_enable_osi_linux,
+ .ident = "Asus EEE PC 1015PX",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer INC."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "1015PX"),
+ },
+ },
+
+ /*
+ * Enable _OSI("Darwin") for all apple platforms.
+ */
+ {
+ .callback = dmi_enable_osi_darwin,
+ .ident = "Apple hardware",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
+ },
+ },
+ {
+ .callback = dmi_enable_osi_darwin,
+ .ident = "Apple hardware",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Apple Computer, Inc."),
+ },
+ },
+ {}
+};
+
+static __init void acpi_osi_dmi_blacklisted(void)
+{
+ dmi_check_system(acpi_osi_dmi_table);
+}
+
+int __init early_acpi_osi_init(void)
+{
+ acpi_osi_dmi_blacklisted();
+
+ return 0;
+}
+
+int __init acpi_osi_init(void)
+{
+ acpi_install_interface_handler(acpi_osi_handler);
+ acpi_osi_setup_late();
+
+ return 0;
+}
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 9b45f5c..307766a 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -96,74 +96,6 @@ struct acpi_ioremap {
static LIST_HEAD(acpi_ioremaps);
static DEFINE_MUTEX(acpi_ioremap_lock);
-static void __init acpi_osi_setup_late(void);
-
-/*
- * The story of _OSI(Linux)
- *
- * From pre-history through Linux-2.6.22,
- * Linux responded TRUE upon a BIOS OSI(Linux) query.
- *
- * Unfortunately, reference BIOS writers got wind of this
- * and put OSI(Linux) in their example code, quickly exposing
- * this string as ill-conceived and opening the door to
- * an un-bounded number of BIOS incompatibilities.
- *
- * For example, OSI(Linux) was used on resume to re-POST a
- * video card on one system, because Linux at that time
- * could not do a speedy restore in its native driver.
- * But then upon gaining quick native restore capability,
- * Linux has no way to tell the BIOS to skip the time-consuming
- * POST -- putting Linux at a permanent performance disadvantage.
- * On another system, the BIOS writer used OSI(Linux)
- * to infer native OS support for IPMI! On other systems,
- * OSI(Linux) simply got in the way of Linux claiming to
- * be compatible with other operating systems, exposing
- * BIOS issues such as skipped device initialization.
- *
- * So "Linux" turned out to be a really poor chose of
- * OSI string, and from Linux-2.6.23 onward we respond FALSE.
- *
- * BIOS writers should NOT query _OSI(Linux) on future systems.
- * Linux will complain on the console when it sees it, and return FALSE.
- * To get Linux to return TRUE for your system will require
- * a kernel source update to add a DMI entry,
- * or boot with "acpi_osi=Linux"
- */
-
-static struct acpi_osi_config {
- unsigned int linux_enable:1;
- unsigned int linux_dmi:1;
- unsigned int linux_cmdline:1;
- unsigned int darwin_enable:1;
- unsigned int darwin_dmi:1;
- unsigned int darwin_cmdline:1;
- u8 default_disabling;
-} osi_config;
-
-static u32 acpi_osi_handler(acpi_string interface, u32 supported)
-{
- if (!strcmp("Linux", interface)) {
-
- pr_notice_once(FW_BUG PREFIX
- "BIOS _OSI(Linux) query %s%s\n",
- osi_config.linux_enable ? "honored" : "ignored",
- osi_config.linux_cmdline ? " via cmdline" :
- osi_config.linux_dmi ? " via DMI" : "");
- }
-
- if (!strcmp("Darwin", interface)) {
-
- pr_notice_once(PREFIX
- "BIOS _OSI(Darwin) query %s%s\n",
- osi_config.darwin_enable ? "honored" : "ignored",
- osi_config.darwin_cmdline ? " via cmdline" :
- osi_config.darwin_dmi ? " via DMI" : "");
- }
-
- return supported;
-}
-
static void __init acpi_request_region (struct acpi_generic_address *gas,
unsigned int length, char *desc)
{
@@ -1445,185 +1377,6 @@ static int __init acpi_os_name_setup(char *str)
__setup("acpi_os_name=", acpi_os_name_setup);
-#define OSI_STRING_LENGTH_MAX 64
-#define OSI_STRING_ENTRIES_MAX 16
-
-struct acpi_osi_entry {
- char string[OSI_STRING_LENGTH_MAX];
- bool enable;
-};
-
-static struct acpi_osi_entry
- osi_setup_entries[OSI_STRING_ENTRIES_MAX] __initdata = {
- {"Module Device", true},
- {"Processor Device", true},
- {"3.0 _SCP Extensions", true},
- {"Processor Aggregator Device", true},
-};
-
-void __init acpi_osi_setup(char *str)
-{
- struct acpi_osi_entry *osi;
- bool enable = true;
- int i;
-
- if (!acpi_gbl_create_osi_method)
- return;
-
- if (str == NULL || *str == '\0') {
- pr_info(PREFIX "_OSI method disabled\n");
- acpi_gbl_create_osi_method = FALSE;
- return;
- }
-
- if (*str == '!') {
- str++;
- if (*str == '\0') {
- /* Do not override acpi_osi=!* */
- if (!osi_config.default_disabling)
- osi_config.default_disabling =
- ACPI_DISABLE_ALL_VENDOR_STRINGS;
- return;
- } else if (*str == '*') {
- osi_config.default_disabling = ACPI_DISABLE_ALL_STRINGS;
- for (i = 0; i < OSI_STRING_ENTRIES_MAX; i++) {
- osi = &osi_setup_entries[i];
- osi->enable = false;
- }
- return;
- } else if (*str == '!') {
- osi_config.default_disabling = 0;
- return;
- }
- enable = false;
- }
-
- for (i = 0; i < OSI_STRING_ENTRIES_MAX; i++) {
- osi = &osi_setup_entries[i];
- if (!strcmp(osi->string, str)) {
- osi->enable = enable;
- break;
- } else if (osi->string[0] == '\0') {
- osi->enable = enable;
- strncpy(osi->string, str, OSI_STRING_LENGTH_MAX);
- break;
- }
- }
-}
-
-static void __init __acpi_osi_setup_darwin(bool enable)
-{
- osi_config.darwin_enable = !!enable;
- if (enable) {
- acpi_osi_setup("!");
- acpi_osi_setup("Darwin");
- } else {
- acpi_osi_setup("!!");
- acpi_osi_setup("!Darwin");
- }
-}
-
-static void __init acpi_osi_setup_darwin(bool enable)
-{
- osi_config.darwin_cmdline = 1;
- osi_config.darwin_dmi = 0;
- __acpi_osi_setup_darwin(enable);
-}
-
-void __init acpi_osi_dmi_darwin(bool enable, const struct dmi_system_id *d)
-{
- pr_notice(PREFIX "DMI detected to setup _OSI(\"Darwin\"): %s\n",
- d->ident);
- osi_config.darwin_dmi = 1;
- __acpi_osi_setup_darwin(enable);
-}
-
-static void __init __acpi_osi_setup_linux(bool enable)
-{
- osi_config.linux_enable = !!enable;
- if (enable)
- acpi_osi_setup("Linux");
- else
- acpi_osi_setup("!Linux");
-}
-
-static void __init acpi_osi_setup_linux(bool enable)
-{
- osi_config.linux_cmdline = 1;
- osi_config.linux_dmi = 0;
- __acpi_osi_setup_linux(enable);
-}
-
-void __init acpi_osi_dmi_linux(bool enable, const struct dmi_system_id *d)
-{
- pr_notice(PREFIX "DMI detected to setup _OSI(\"Linux\"): %s\n",
- d->ident);
- osi_config.linux_dmi = 1;
- __acpi_osi_setup_linux(enable);
-}
-
-/*
- * Modify the list of "OS Interfaces" reported to BIOS via _OSI
- *
- * empty string disables _OSI
- * string starting with '!' disables that string
- * otherwise string is added to list, augmenting built-in strings
- */
-static void __init acpi_osi_setup_late(void)
-{
- struct acpi_osi_entry *osi;
- char *str;
- int i;
- acpi_status status;
-
- if (osi_config.default_disabling) {
- status = acpi_update_interfaces(osi_config.default_disabling);
-
- if (ACPI_SUCCESS(status))
- pr_info(PREFIX "Disabled all _OSI OS vendors%s\n",
- osi_config.default_disabling ==
- ACPI_DISABLE_ALL_STRINGS ?
- " and feature groups" : "");
- }
-
- for (i = 0; i < OSI_STRING_ENTRIES_MAX; i++) {
- osi = &osi_setup_entries[i];
- str = osi->string;
-
- if (*str == '\0')
- break;
- if (osi->enable) {
- status = acpi_install_interface(str);
-
- if (ACPI_SUCCESS(status))
- pr_info(PREFIX "Added _OSI(%s)\n", str);
- } else {
- status = acpi_remove_interface(str);
-
- if (ACPI_SUCCESS(status))
- pr_info(PREFIX "Deleted _OSI(%s)\n", str);
- }
- }
-}
-
-static int __init osi_setup(char *str)
-{
- if (str && !strcmp("Linux", str))
- acpi_osi_setup_linux(true);
- else if (str && !strcmp("!Linux", str))
- acpi_osi_setup_linux(false);
- else if (str && !strcmp("Darwin", str))
- acpi_osi_setup_darwin(true);
- else if (str && !strcmp("!Darwin", str))
- acpi_osi_setup_darwin(false);
- else
- acpi_osi_setup(str);
-
- return 1;
-}
-
-__setup("acpi_osi=", osi_setup);
-
/*
* Disable the auto-serialization of named objects creation methods.
*
@@ -1743,12 +1496,6 @@ int acpi_resources_are_enforced(void)
}
EXPORT_SYMBOL(acpi_resources_are_enforced);
-bool acpi_osi_is_win8(void)
-{
- return acpi_gbl_osi_data >= ACPI_OSI_WIN_8;
-}
-EXPORT_SYMBOL(acpi_osi_is_win8);
-
/*
* Deallocate the memory for a spinlock.
*/
@@ -1914,8 +1661,7 @@ acpi_status __init acpi_os_initialize1(void)
BUG_ON(!kacpid_wq);
BUG_ON(!kacpi_notify_wq);
BUG_ON(!kacpi_hotplug_wq);
- acpi_install_interface_handler(acpi_osi_handler);
- acpi_osi_setup_late();
+ acpi_osi_init();
return AE_OK;
}
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index f0137bf..b25690b 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -353,8 +353,6 @@ extern bool wmi_has_guid(const char *guid);
extern char acpi_video_backlight_string[];
extern long acpi_is_video_device(acpi_handle handle);
extern int acpi_blacklisted(void);
-extern void acpi_osi_dmi_linux(bool enable, const struct dmi_system_id *d);
-extern void acpi_osi_dmi_darwin(bool enable, const struct dmi_system_id *d);
extern void acpi_osi_setup(char *str);
extern bool acpi_osi_is_win8(void);
--
1.7.10
Powered by blists - more mailing lists