From d1154be3004e9db2d61533e16bb2cf85dd27a8cb Mon Sep 17 00:00:00 2001 From: Alexey Starikovskiy Date: Tue, 15 Jan 2008 00:47:47 -0500 Subject: ACPI: processor: Fix null pointer dereference in throttling http://bugzilla.kernel.org/show_bug.cgi?id=9747 Signed-off-by: Alexey Starikovskiy Signed-off-by: Len Brown --- drivers/acpi/processor_throttling.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/processor_throttling.c b/drivers/acpi/processor_throttling.c index 6742d7bc477..1685b40abda 100644 --- a/drivers/acpi/processor_throttling.c +++ b/drivers/acpi/processor_throttling.c @@ -775,12 +775,12 @@ int acpi_processor_get_throttling_info(struct acpi_processor *pr) acpi_processor_get_throttling_states(pr) || acpi_processor_get_platform_limit(pr)) { - if (acpi_processor_get_fadt_info(pr)) - return 0; pr->throttling.acpi_processor_get_throttling = &acpi_processor_get_throttling_fadt; pr->throttling.acpi_processor_set_throttling = &acpi_processor_set_throttling_fadt; + if (acpi_processor_get_fadt_info(pr)) + return 0; } else { pr->throttling.acpi_processor_get_throttling = &acpi_processor_get_throttling_ptc; -- cgit v1.2.3-18-g5258 From 81b4e1f6269cea345f17d3aa349ec9beb31a8cd3 Mon Sep 17 00:00:00 2001 From: Len Brown Date: Wed, 16 Jan 2008 17:20:37 -0500 Subject: DMI: move dmi_available declaration to linux/dmi.h Signed-off-by: Len Brown --- drivers/firmware/dmi-id.c | 2 -- 1 file changed, 2 deletions(-) (limited to 'drivers') diff --git a/drivers/firmware/dmi-id.c b/drivers/firmware/dmi-id.c index bc132d8f79c..313c99cbdc6 100644 --- a/drivers/firmware/dmi-id.c +++ b/drivers/firmware/dmi-id.c @@ -173,8 +173,6 @@ static struct device *dmi_dev; if (dmi_get_system_info(_field)) \ sys_dmi_attributes[i++] = &sys_dmi_##_name##_attr.dev_attr.attr; -extern int dmi_available; - /* In a separate function to keep gcc 3.2 happy - do NOT merge this in dmi_id_init! */ static void __init dmi_id_init_attr_table(void) -- cgit v1.2.3-18-g5258 From f89e3b0620a0dc19f313218f55373b9361142203 Mon Sep 17 00:00:00 2001 From: Len Brown Date: Wed, 23 Jan 2008 16:36:45 -0500 Subject: DMI: create dmi_get_slot() This simply allows other sub-systems (such as ACPI) to access and print out slots in static dmi_ident[]. Signed-off-by: Len Brown --- drivers/firmware/dmi_scan.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'drivers') diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c index 0cdadea7a40..5e596a7e360 100644 --- a/drivers/firmware/dmi_scan.c +++ b/drivers/firmware/dmi_scan.c @@ -470,3 +470,11 @@ int dmi_get_year(int field) return year; } +/** + * dmi_get_slot - return dmi_ident[slot] + * @slot: index into dmi_ident[] + */ +char *dmi_get_slot(int slot) +{ + return(dmi_ident[slot]); +} -- cgit v1.2.3-18-g5258 From 5a4e143271b97dcaa113761a76942c4d4bc273a2 Mon Sep 17 00:00:00 2001 From: Len Brown Date: Wed, 23 Jan 2008 20:01:22 -0500 Subject: ACPI: create acpi_dmi_dump() A utility routine to print common entries used for ACPI-related DMI blacklist entries. Signed-off-by: Len Brown --- drivers/acpi/osl.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) (limited to 'drivers') diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index e3a673a0084..93ad5f40f2e 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -1141,6 +1141,34 @@ acpi_status acpi_os_release_object(acpi_cache_t * cache, void *object) return (AE_OK); } +/** + * acpi_dmi_dump - dump DMI slots needed for blacklist entry + * + * Returns 0 on success + */ +int acpi_dmi_dump(void) +{ + + if (!dmi_available) + return -1; + + printk(KERN_NOTICE PREFIX "DMI System Vendor: %s\n", + dmi_get_slot(DMI_SYS_VENDOR)); + printk(KERN_NOTICE PREFIX "DMI Product Name: %s\n", + dmi_get_slot(DMI_PRODUCT_NAME)); + printk(KERN_NOTICE PREFIX "DMI Product Version: %s\n", + dmi_get_slot(DMI_PRODUCT_VERSION)); + printk(KERN_NOTICE PREFIX "DMI Board Name: %s\n", + dmi_get_slot(DMI_BOARD_NAME)); + printk(KERN_NOTICE PREFIX "DMI BIOS Vendor: %s\n", + dmi_get_slot(DMI_BIOS_VENDOR)); + printk(KERN_NOTICE PREFIX "DMI BIOS Date: %s\n", + dmi_get_slot(DMI_BIOS_DATE)); + + return 0; +} + + /****************************************************************************** * * FUNCTION: acpi_os_validate_interface -- cgit v1.2.3-18-g5258 From f40cd6fddcb1d51d8a2a67ddc81c14a3532f3cb7 Mon Sep 17 00:00:00 2001 From: Len Brown Date: Wed, 23 Jan 2008 20:04:28 -0500 Subject: ACPI: on OSI(Linux), print needed DMI rather than requesting dmidecode output Signed-off-by: Len Brown --- drivers/acpi/osl.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 93ad5f40f2e..2203153b540 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -1190,10 +1190,16 @@ acpi_os_validate_interface (char *interface) if (!strcmp("Linux", interface)) { printk(KERN_WARNING PREFIX "System BIOS is requesting _OSI(Linux)\n"); - printk(KERN_WARNING PREFIX - "If \"acpi_osi=Linux\" works better,\n" - "Please send dmidecode " - "to linux-acpi@vger.kernel.org\n"); + if (acpi_dmi_dump()) + printk(KERN_NOTICE PREFIX + "[please extract dmidecode output]\n"); + printk(KERN_NOTICE PREFIX + "Please send DMI info above to " + "linux-acpi@vger.kernel.org\n"); + printk(KERN_NOTICE PREFIX + "If \"acpi_osi=%sLinux\" works better, " + "please notify linux-acpi@vger.kernel.org\n", + osi_linux ? "!" : ""); if(osi_linux) return AE_OK; } -- cgit v1.2.3-18-g5258 From 7ce95ce5c6dbbc3f70933f04537860ffd9dbe17e Mon Sep 17 00:00:00 2001 From: Len Brown Date: Wed, 23 Jan 2008 20:06:41 -0500 Subject: ACPI: Delete Intel Customer Reference Board (CRB) from OSI(Linux) DMI list Linux does not want BIOS writers to invoke _OSI(Linux) - for in the field it causes more Windows incompatibility problems than it solves. So when it is seen in the BIOS for an Intel Customer Reference Board, Linux should ignore its effect by default, and should complain loudly. Otherwise, the reference BIOS will go unfixed, and the bad BIOS will spread to the field. Users of this board can get the old behavior with "acpi_osi=Linux" As this was the only entry, delete acpi_osl_dmi_table[]. Signed-off-by: Len Brown --- drivers/acpi/osl.c | 29 ----------------------------- 1 file changed, 29 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 2203153b540..15f095ea795 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -79,10 +79,6 @@ static char osi_additional_string[OSI_STRING_LENGTH_MAX]; static int osi_linux; /* disable _OSI(Linux) by default */ -#ifdef CONFIG_DMI -static struct __initdata dmi_system_id acpi_osl_dmi_table[]; -#endif - static void __init acpi_request_region (struct acpi_generic_address *addr, unsigned int length, char *desc) { @@ -133,7 +129,6 @@ device_initcall(acpi_reserve_resources); acpi_status __init acpi_os_initialize(void) { - dmi_check_system(acpi_osl_dmi_table); return AE_OK; } @@ -1232,28 +1227,4 @@ acpi_os_validate_address ( return AE_OK; } -#ifdef CONFIG_DMI -static int dmi_osi_linux(const struct dmi_system_id *d) -{ - printk(KERN_NOTICE "%s detected: enabling _OSI(Linux)\n", d->ident); - enable_osi_linux(1); - return 0; -} - -static struct dmi_system_id acpi_osl_dmi_table[] __initdata = { - /* - * Boxes that need _OSI(Linux) - */ - { - .callback = dmi_osi_linux, - .ident = "Intel Napa CRB", - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, "Intel Corporation"), - DMI_MATCH(DMI_BOARD_NAME, "MPAD-MSAE Customer Reference Boards"), - }, - }, - {} -}; -#endif /* CONFIG_DMI */ - #endif -- cgit v1.2.3-18-g5258 From d4b7dc499daae909e62dc260b95cd618f2970ded Mon Sep 17 00:00:00 2001 From: Len Brown Date: Wed, 23 Jan 2008 20:50:56 -0500 Subject: ACPI: make _OSI(Linux) console messages smarter If BIOS invokes _OSI(Linux), the kernel response depends on what the ACPI DMI list knows about the system, and that is reflectd in dmesg: 1) System unknown to DMI: ACPI: BIOS _OSI(Linux) query ignored ACPI: DMI System Vendor: LENOVO ACPI: DMI Product Name: 7661W1P ACPI: DMI Product Version: ThinkPad T61 ACPI: DMI Board Name: 7661W1P ACPI: DMI BIOS Vendor: LENOVO ACPI: DMI BIOS Date: 10/18/2007 ACPI: Please send DMI info above to linux-acpi@vger.kernel.org ACPI: If "acpi_osi=Linux" works better, please notify linux-acpi@vger.kernel.org 2) System known to DMI, but effect of OSI(Linux) unknown: ACPI: DMI detected: Lenovo ThinkPad T61 ... ACPI: BIOS _OSI(Linux) query ignored via DMI ACPI: If "acpi_osi=Linux" works better, please notify linux-acpi@vger.kernel.org 3) System known to DMI, which disables _OSI(Linux): ACPI: DMI detected: Lenovo ThinkPad T61 ... ACPI: BIOS _OSI(Linux) query ignored via DMI 4) System known to DMI, which enable _OSI(Linux): ACPI: DMI detected: Lenovo ThinkPad T61 ACPI: Added _OSI(Linux) ... ACPI: BIOS _OSI(Linux) query honored via DMI cmdline overrides take precidence over the built-in default and the DMI prescribed default. cmdline "acpi_osi=Linux" results in: ACPI: BIOS _OSI(Linux) query honored via cmdline Signed-off-by: Len Brown --- drivers/acpi/blacklist.c | 11 +++++ drivers/acpi/osl.c | 122 +++++++++++++++++++++++++++++++++++++++-------- 2 files changed, 113 insertions(+), 20 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c index 3ec110ce00c..018fc16c44c 100644 --- a/drivers/acpi/blacklist.c +++ b/drivers/acpi/blacklist.c @@ -3,6 +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[]. * * Copyright (C) 2004 Len Brown * Copyright (C) 2002 Andy Grover @@ -50,6 +51,8 @@ struct acpi_blacklist_item { u32 is_critical_error; }; +static struct dmi_system_id acpi_osi_dmi_table[] __initdata; + /* * POLICY: If *anything* doesn't work, put it on the blacklist. * If they are critical errors, mark it critical, and abort driver load. @@ -165,5 +168,13 @@ int __init acpi_blacklisted(void) blacklisted += blacklist_by_year(); + dmi_check_system(acpi_osi_dmi_table); + return blacklisted; } +#ifdef CONFIG_DMI +static struct dmi_system_id acpi_osi_dmi_table[] __initdata = { + {} +}; + +#endif /* CONFIG_DMI */ diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 15f095ea795..e53fb516f9d 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -77,7 +77,55 @@ static struct workqueue_struct *kacpi_notify_wq; #define OSI_STRING_LENGTH_MAX 64 /* arbitrary */ static char osi_additional_string[OSI_STRING_LENGTH_MAX]; -static int osi_linux; /* disable _OSI(Linux) by default */ +/* + * "Ode to _OSI(Linux)" + * + * osi_linux -- Control response to BIOS _OSI(Linux) query. + * + * As Linux evolves, the features that it supports change. + * So an OSI string such as "Linux" is not specific enough + * to be useful across multiple versions of Linux. It + * doesn't identify any particular feature, interface, + * or even any particular version of Linux... + * + * Unfortunately, Linux-2.6.22 and earlier responded "yes" + * to a BIOS _OSI(Linux) query. When + * a reference mobile BIOS started using it, its use + * started to spread to many vendor platforms. + * As it is not supportable, we need to halt that spread. + * + * Today, most BIOS references to _OSI(Linux) are noise -- + * they have no functional effect and are just dead code + * carried over from the reference BIOS. + * + * The next most common case is that _OSI(Linux) harms Linux, + * usually by causing the BIOS to follow paths that are + * not tested during Windows validation. + * + * Finally, there is a short list of platforms + * where OSI(Linux) benefits Linux. + * + * In Linux-2.6.23, OSI(Linux) is first disabled by default. + * DMI is used to disable the dmesg warning about OSI(Linux) + * on platforms where it is known to have no effect. + * But a dmesg warning remains for systems where + * we do not know if OSI(Linux) is good or bad for the system. + * DMI is also used to enable OSI(Linux) for the machines + * that are known to need it. + * + * BIOS writers should NOT query _OSI(Linux) on future systems. + * It will be ignored by default, and to get Linux to + * not ignore it will require a kernel source update to + * add a DMI entry, or a boot-time "acpi_osi=Linux" invocation. + */ +#define OSI_LINUX_ENABLE 0 + +struct osi_linux { + unsigned int enable:1; + unsigned int dmi:1; + unsigned int cmdline:1; + unsigned int known:1; +} osi_linux = { OSI_LINUX_ENABLE, 0, 0, 0}; static void __init acpi_request_region (struct acpi_generic_address *addr, unsigned int length, char *desc) @@ -959,13 +1007,37 @@ static int __init acpi_os_name_setup(char *str) __setup("acpi_os_name=", acpi_os_name_setup); -static void enable_osi_linux(int enable) { +static void __init set_osi_linux(unsigned int enable) +{ + if (osi_linux.enable != enable) { + osi_linux.enable = enable; + printk(KERN_NOTICE PREFIX "%sed _OSI(Linux)\n", + enable ? "Add": "Delet"); + } + return; +} + +static void __init acpi_cmdline_osi_linux(unsigned int enable) +{ + osi_linux.cmdline = 1; /* cmdline set the default */ + set_osi_linux(enable); + + return; +} + +void __init acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d) +{ + osi_linux.dmi = 1; /* DMI knows that this box asks OSI(Linux) */ + + printk(KERN_NOTICE PREFIX "DMI detected: %s\n", d->ident); + + if (enable == -1) + return; + + osi_linux.known = 1; /* DMI knows which OSI(Linux) default needed */ - if (osi_linux != enable) - printk(KERN_INFO PREFIX "%sabled _OSI(Linux)\n", - enable ? "En": "Dis"); + set_osi_linux(enable); - osi_linux = enable; return; } @@ -982,12 +1054,12 @@ static int __init acpi_osi_setup(char *str) printk(KERN_INFO PREFIX "_OSI method disabled\n"); acpi_gbl_create_osi_method = FALSE; } else if (!strcmp("!Linux", str)) { - enable_osi_linux(0); + acpi_cmdline_osi_linux(0); /* !enable */ } else if (*str == '!') { if (acpi_osi_invalidate(++str) == AE_OK) printk(KERN_INFO PREFIX "Deleted _OSI(%s)\n", str); } else if (!strcmp("Linux", str)) { - enable_osi_linux(1); + acpi_cmdline_osi_linux(1); /* enable */ } else if (*osi_additional_string == '\0') { strncpy(osi_additional_string, str, OSI_STRING_LENGTH_MAX); printk(KERN_INFO PREFIX "Added _OSI(%s)\n", str); @@ -1183,19 +1255,29 @@ acpi_os_validate_interface (char *interface) if (!strncmp(osi_additional_string, interface, OSI_STRING_LENGTH_MAX)) return AE_OK; if (!strcmp("Linux", interface)) { - printk(KERN_WARNING PREFIX - "System BIOS is requesting _OSI(Linux)\n"); - if (acpi_dmi_dump()) - printk(KERN_NOTICE PREFIX - "[please extract dmidecode output]\n"); - printk(KERN_NOTICE PREFIX - "Please send DMI info above to " - "linux-acpi@vger.kernel.org\n"); + printk(KERN_NOTICE PREFIX - "If \"acpi_osi=%sLinux\" works better, " - "please notify linux-acpi@vger.kernel.org\n", - osi_linux ? "!" : ""); - if(osi_linux) + "BIOS _OSI(Linux) query %s%s\n", + osi_linux.enable ? "honored" : "ignored", + osi_linux.cmdline ? " via cmdline" : + osi_linux.dmi ? " via DMI" : ""); + + if (!osi_linux.dmi) { + if (acpi_dmi_dump()) + printk(KERN_NOTICE PREFIX + "[please extract dmidecode output]\n"); + printk(KERN_NOTICE PREFIX + "Please send DMI info above to " + "linux-acpi@vger.kernel.org\n"); + } + if (!osi_linux.known && !osi_linux.cmdline) { + printk(KERN_NOTICE PREFIX + "If \"acpi_osi=%sLinux\" works better, " + "please notify linux-acpi@vger.kernel.org\n", + osi_linux.enable ? "!" : ""); + } + + if (osi_linux.enable) return AE_OK; } return AE_SUPPORT; -- cgit v1.2.3-18-g5258 From 98f1db22d70b0660a27cc8818a61181b5d503671 Mon Sep 17 00:00:00 2001 From: Len Brown Date: Wed, 23 Jan 2008 20:56:18 -0500 Subject: ACPI: Add ThinkPad R61, ThinkPad T61 to OSI(Linux) white-list acpi_osi=Linux helps sound on these systems. Signed-off-by: Len Brown --- drivers/acpi/blacklist.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) (limited to 'drivers') diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c index 018fc16c44c..e88d4460afd 100644 --- a/drivers/acpi/blacklist.c +++ b/drivers/acpi/blacklist.c @@ -173,7 +173,34 @@ int __init acpi_blacklisted(void) return blacklisted; } #ifdef CONFIG_DMI +static int __init dmi_enable_osi_linux(const struct dmi_system_id *d) +{ + acpi_dmi_osi_linux(1, d); /* enable */ + return 0; +} + static struct dmi_system_id acpi_osi_dmi_table[] __initdata = { + /* + * _OSI(Linux) helps sound + * DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad R61"), + * DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T61"), + */ + { + .callback = dmi_enable_osi_linux, + .ident = "Lenovo ThinkPad R61", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad R61"), + }, + }, + { + .callback = dmi_enable_osi_linux, + .ident = "Lenovo ThinkPad T61", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T61"), + }, + }, {} }; -- cgit v1.2.3-18-g5258 From a1bd4e35e8d9df24db7d7addd74cbfcc87ec9fb3 Mon Sep 17 00:00:00 2001 From: Len Brown Date: Wed, 23 Jan 2008 21:19:27 -0500 Subject: ACPI: DMI blacklist to reduce console warnings on OSI(Linux) systems. This DMI blacklist reduces the console messages on systems which have a BIOS that invokes OSI(Linux). As the DMI blacklist already knows about these systems, the request for DMI info itself is disabled. Further, if OSI(Linux) has already been determined to have no beneift, we disable the console message requesting acpi_osi=Linux test results. Signed-off-by: Len Brown --- drivers/acpi/blacklist.c | 343 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 343 insertions(+) (limited to 'drivers') diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c index e88d4460afd..8809654d6cc 100644 --- a/drivers/acpi/blacklist.c +++ b/drivers/acpi/blacklist.c @@ -178,12 +178,264 @@ static int __init dmi_enable_osi_linux(const struct dmi_system_id *d) acpi_dmi_osi_linux(1, d); /* enable */ return 0; } +static int __init dmi_disable_osi_linux(const struct dmi_system_id *d) +{ + acpi_dmi_osi_linux(0, d); /* disable */ + return 0; +} +static int __init dmi_unknown_osi_linux(const struct dmi_system_id *d) +{ + acpi_dmi_osi_linux(-1, d); /* unknown */ + return 0; +} + +/* + * Most BIOS that invoke OSI(Linux) do nothing with it. + * But some cause Linux to break. + * Only a couple use it to make Linux run better. + * + * Thus, Linux should continue to disable OSI(Linux) by default, + * should continue to discourage BIOS writers from using it, and + * should whitelist the few existing systems that require it. + * + * If it appears clear a vendor isn't using OSI(Linux) + * for anything constructive, blacklist them by name to disable + * unnecessary dmesg warnings on all of their products. + */ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = { /* + * Disable OSI(Linux) warnings on all "Acer, inc." + * + * _OSI(Linux) disables the latest Windows BIOS code: + * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5050"), + * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5580"), + * DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 3010"), + * _OSI(Linux) effect unknown: + * DMI_MATCH(DMI_PRODUCT_NAME, "Ferrari 5000"), + */ + { + .callback = dmi_disable_osi_linux, + .ident = "Acer, inc.", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Acer, inc."), + }, + }, + /* + * Disable OSI(Linux) warnings on all "Acer" + * + * _OSI(Linux) effect unknown: + * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"), + * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"), + * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 7720Z"), + * DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 5520"), + * DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 6460"), + * DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 7510"), + * DMI_MATCH(DMI_PRODUCT_NAME, "Extensa 5220"), + */ + { + .callback = dmi_unknown_osi_linux, + .ident = "Acer", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Acer"), + }, + }, + /* + * Disable OSI(Linux) warnings on all "Apple Computer, Inc." + * + * _OSI(Linux) confirmed to be a NOP: + * DMI_MATCH(DMI_PRODUCT_NAME, "MacBook1,1"), + * DMI_MATCH(DMI_PRODUCT_NAME, "MacBook2,1"), + * DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro2,2"), + * _OSI(Linux) effect unknown: + * DMI_MATCH(DMI_PRODUCT_NAME, "MacPro2,1"), + * DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro1,1"), + * DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro3,1"), + */ + { + .callback = dmi_disable_osi_linux, + .ident = "Apple", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Apple Computer, Inc."), + }, + }, + /* + * Disable OSI(Linux) warnings on all "BenQ" + * + * _OSI(Linux) confirmed to be a NOP: + * DMI_MATCH(DMI_PRODUCT_NAME, "Joybook S31"), + */ + { + .callback = dmi_disable_osi_linux, + .ident = "BenQ", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "BenQ"), + }, + }, + /* + * Disable OSI(Linux) warnings on all "Clevo Co." + * + * _OSI(Linux) confirmed to be a NOP: + * DMI_MATCH(DMI_PRODUCT_NAME, "M570RU"), + */ + { + .callback = dmi_disable_osi_linux, + .ident = "Clevo", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Clevo Co."), + }, + }, + /* + * Disable OSI(Linux) warnings on all "COMPAL" + * + * _OSI(Linux) confirmed to be a NOP: + * DMI_MATCH(DMI_BOARD_NAME, "HEL8X"), + * _OSI(Linux) unknown effect: + * DMI_MATCH(DMI_BOARD_NAME, "IFL91"), + */ + { + .callback = dmi_unknown_osi_linux, + .ident = "Compal", + .matches = { + DMI_MATCH(DMI_BIOS_VENDOR, "COMPAL"), + }, + }, + { /* OSI(Linux) touches USB, breaks suspend to disk */ + .callback = dmi_disable_osi_linux, + .ident = "Dell Dimension 5150", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "Dell DM051"), + }, + }, + { /* OSI(Linux) is a NOP */ + .callback = dmi_disable_osi_linux, + .ident = "Dell", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1501"), + }, + }, + { /* OSI(Linux) effect unknown */ + .callback = dmi_unknown_osi_linux, + .ident = "Dell", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "Latitude D830"), + }, + }, + { /* OSI(Linux) effect unknown */ + .callback = dmi_unknown_osi_linux, + .ident = "Dell", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex GX620"), + }, + }, + { /* OSI(Linux) effect unknown */ + .callback = dmi_unknown_osi_linux, + .ident = "Dell", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge 1900"), + }, + }, + { /* OSI(Linux) touches USB */ + .callback = dmi_disable_osi_linux, + .ident = "Dell", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "Precision WorkStation 390"), + }, + }, + { /* OSI(Linux) is a NOP */ + .callback = dmi_disable_osi_linux, + .ident = "Dell Vostro 1000", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 1000"), + }, + }, + { /* OSI(Linux) effect unknown */ + .callback = dmi_unknown_osi_linux, + .ident = "Dell", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge SC440"), + }, + }, + { /* OSI(Linux) effect unknown */ + .callback = dmi_unknown_osi_linux, + .ident = "Dialogue Flybook V5", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dialogue Technology Corporation"), + DMI_MATCH(DMI_PRODUCT_NAME, "Flybook V5"), + }, + }, + /* + * Disable OSI(Linux) warnings on all "FUJITSU SIEMENS" + * + * _OSI(Linux) disables latest Windows BIOS code: + * DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pa 2510"), + * _OSI(Linux) confirmed to be a NOP: + * DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pi 1536"), + * DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pi 1556"), + * DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 1546"), + * _OSI(Linux) unknown effect: + * DMI_MATCH(DMI_PRODUCT_NAME, "Amilo M1425"), + * DMI_MATCH(DMI_PRODUCT_NAME, "Amilo Si 1520"), + * DMI_MATCH(DMI_PRODUCT_NAME, "ESPRIMO Mobile V5505"), + */ + { + .callback = dmi_disable_osi_linux, + .ident = "Fujitsu Siemens", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), + }, + }, + /* + * Disable OSI(Linux) warnings on all "Hewlett-Packard" + * + * _OSI(Linux) confirmed to be a NOP: + * .ident = "HP Pavilion tx 1000" + * DMI_MATCH(DMI_BOARD_NAME, "30BF"), + * .ident = "HP Pavilion dv2000" + * DMI_MATCH(DMI_BOARD_NAME, "30B5"), + * .ident = "HP Pavilion dv5000", + * DMI_MATCH(DMI_BOARD_NAME, "30A7"), + * .ident = "HP Pavilion dv6300 30BC", + * DMI_MATCH(DMI_BOARD_NAME, "30BC"), + * .ident = "HP Pavilion dv6000", + * DMI_MATCH(DMI_BOARD_NAME, "30B7"), + * DMI_MATCH(DMI_BOARD_NAME, "30B8"), + * .ident = "HP Pavilion dv9000", + * DMI_MATCH(DMI_BOARD_NAME, "30B9"), + * .ident = "HP Pavilion dv9500", + * DMI_MATCH(DMI_BOARD_NAME, "30CB"), + * .ident = "HP/Compaq Presario C500", + * DMI_MATCH(DMI_BOARD_NAME, "30C6"), + * .ident = "HP/Compaq Presario F500", + * DMI_MATCH(DMI_BOARD_NAME, "30D3"), + * _OSI(Linux) unknown effect: + * .ident = "HP Pavilion dv6500", + * DMI_MATCH(DMI_BOARD_NAME, "30D0"), + */ + { + .callback = dmi_disable_osi_linux, + .ident = "Hewlett-Packard", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), + }, + }, + /* + * Lenovo has a mix of systems OSI(Linux) situations + * and thus we can not wildcard the vendor. + * * _OSI(Linux) helps sound * DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad R61"), * DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T61"), + * _OSI(Linux) is a NOP: + * DMI_MATCH(DMI_PRODUCT_VERSION, "3000 N100"), */ { .callback = dmi_enable_osi_linux, @@ -201,6 +453,97 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = { DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T61"), }, }, + { + .callback = dmi_unknown_osi_linux, + .ident = "Lenovo 3000 V100", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_VERSION, "LENOVO3000 V100"), + }, + }, + { + .callback = dmi_disable_osi_linux, + .ident = "Lenovo 3000 N100", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_VERSION, "3000 N100"), + }, + }, + /* + * Disable OSI(Linux) warnings on all "LG Electronics" + * + * _OSI(Linux) confirmed to be a NOP: + * DMI_MATCH(DMI_PRODUCT_NAME, "P1-J150B"), + */ + { + .callback = dmi_disable_osi_linux, + .ident = "LG", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LG Electronics"), + }, + }, + /* NEC - OSI(Linux) effect unknown */ + { + .callback = dmi_unknown_osi_linux, + .ident = "NEC VERSA M360", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "NEC Computers SAS"), + DMI_MATCH(DMI_PRODUCT_NAME, "NEC VERSA M360"), + }, + }, + /* + * Disable OSI(Linux) warnings on all "Samsung Electronics" + * + * OSI(Linux) disables PNP0C32 and other BIOS code for Windows: + * DMI_MATCH(DMI_PRODUCT_NAME, "R40P/R41P"), + * DMI_MATCH(DMI_PRODUCT_NAME, "R59P/R60P/R61P"), + */ + { + .callback = dmi_disable_osi_linux, + .ident = "Samsung", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), + }, + }, + /* + * Disable OSI(Linux) warnings on all "Sony Corporation" + * + * _OSI(Linux) is a NOP: + * DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SZ650N"), + * DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SZ38GP_C"), + * DMI_MATCH(DMI_PRODUCT_NAME, "VGN-TZ21MN_N"), + * _OSI(Linux) unknown effect: + * DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FZ11M"), + */ + { + .callback = dmi_unknown_osi_linux, + .ident = "Sony", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"), + }, + }, + /* + * Disable OSI(Linux) warnings on all "TOSHIBA" + * + * _OSI(Linux) breaks sound (bugzilla 7787): + * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P100"), + * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P105"), + * _OSI(Linux) is a NOP: + * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite A100"), + * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite A210"), + * _OSI(Linux) unknown effect: + * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite A135"), + * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite A200"), + * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P205"), + * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite U305"), + */ + { + .callback = dmi_disable_osi_linux, + .ident = "Toshiba", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), + }, + }, {} }; -- cgit v1.2.3-18-g5258 From 03d1d99c55649ca641b86d2e3489b167ede1671a Mon Sep 17 00:00:00 2001 From: Alexey Starikovskiy Date: Wed, 23 Jan 2008 22:28:34 -0500 Subject: ACPI: EC: fix dmesg spam regression Return OBF_1 optimization workaround http://bugzilla.kernel.org/show_bug.cgi?id=8459 Signed-off-by: Alexey Starikovskiy Signed-off-by: Len Brown --- drivers/acpi/ec.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index 97dc16155a5..8917d754020 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -82,6 +82,7 @@ enum { EC_FLAGS_ADDRESS, /* Address is being written */ EC_FLAGS_NO_WDATA_GPE, /* Don't expect WDATA GPE event */ EC_FLAGS_WDATA, /* Data is being written */ + EC_FLAGS_NO_OBF1_GPE, /* Don't expect GPE before read */ }; static int acpi_ec_remove(struct acpi_device *device, int type); @@ -179,6 +180,10 @@ static inline int acpi_ec_check_status(struct acpi_ec *ec, enum ec_event event) static int acpi_ec_wait(struct acpi_ec *ec, enum ec_event event, int force_poll) { int ret = 0; + + if (unlikely(event == ACPI_EC_EVENT_OBF_1 && + test_bit(EC_FLAGS_NO_OBF1_GPE, &ec->flags))) + force_poll = 1; if (unlikely(test_bit(EC_FLAGS_ADDRESS, &ec->flags) && test_bit(EC_FLAGS_NO_ADDRESS_GPE, &ec->flags))) force_poll = 1; @@ -192,7 +197,12 @@ static int acpi_ec_wait(struct acpi_ec *ec, enum ec_event event, int force_poll) goto end; clear_bit(EC_FLAGS_WAIT_GPE, &ec->flags); if (acpi_ec_check_status(ec, event)) { - if (test_bit(EC_FLAGS_ADDRESS, &ec->flags)) { + if (event == ACPI_EC_EVENT_OBF_1) { + /* miss OBF_1 GPE, don't expect it */ + pr_info(PREFIX "missing OBF confirmation, " + "don't expect it any longer.\n"); + set_bit(EC_FLAGS_NO_OBF1_GPE, &ec->flags); + } else if (test_bit(EC_FLAGS_ADDRESS, &ec->flags)) { /* miss address GPE, don't expect it anymore */ pr_info(PREFIX "missing address confirmation, " "don't expect it any longer.\n"); -- cgit v1.2.3-18-g5258 From 86dae0154a49b67c908faffeb33ba37eddceba74 Mon Sep 17 00:00:00 2001 From: Márton Németh Date: Wed, 23 Jan 2008 22:33:06 -0500 Subject: ACPI: EC: add leading zeros to debug messages MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add leading zeros to pr_debug() calls. For example if x=0x0a, the format "0x%2x" will result the string "0x a", the format "0x%2.2x" will result "0x0a". Signed-off-by: Márton Németh Signed-off-by: Len Brown --- drivers/acpi/ec.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index 8917d754020..06c9f3520da 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -139,26 +139,26 @@ static struct acpi_ec { static inline u8 acpi_ec_read_status(struct acpi_ec *ec) { u8 x = inb(ec->command_addr); - pr_debug(PREFIX "---> status = 0x%2x\n", x); + pr_debug(PREFIX "---> status = 0x%2.2x\n", x); return x; } static inline u8 acpi_ec_read_data(struct acpi_ec *ec) { u8 x = inb(ec->data_addr); - pr_debug(PREFIX "---> data = 0x%2x\n", x); + pr_debug(PREFIX "---> data = 0x%2.2x\n", x); return inb(ec->data_addr); } static inline void acpi_ec_write_cmd(struct acpi_ec *ec, u8 command) { - pr_debug(PREFIX "<--- command = 0x%2x\n", command); + pr_debug(PREFIX "<--- command = 0x%2.2x\n", command); outb(command, ec->command_addr); } static inline void acpi_ec_write_data(struct acpi_ec *ec, u8 data) { - pr_debug(PREFIX "<--- data = 0x%2x\n", data); + pr_debug(PREFIX "<--- data = 0x%2.2x\n", data); outb(data, ec->data_addr); } -- cgit v1.2.3-18-g5258 From d772b3b323a15588a757f5af28e51a57d0d2f622 Mon Sep 17 00:00:00 2001 From: Márton Németh Date: Wed, 23 Jan 2008 22:34:09 -0500 Subject: ACPI: EC: "DEBUG" needs to be defined earlier MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The "DEBUG" symbol needs to be defined before #including to get the pr_debug() working. Signed-off-by: Márton Németh Signed-off-by: Len Brown --- drivers/acpi/ec.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index 06c9f3520da..987b967c746 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -26,6 +26,9 @@ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ +/* Uncomment next line to get verbose print outs*/ +/* #define DEBUG */ + #include #include #include @@ -47,9 +50,6 @@ #undef PREFIX #define PREFIX "ACPI: EC: " -/* Uncomment next line to get verbose print outs*/ -/* #define DEBUG */ - /* EC status register */ #define ACPI_EC_FLAG_OBF 0x01 /* Output buffer full */ #define ACPI_EC_FLAG_IBF 0x02 /* Input buffer full */ -- cgit v1.2.3-18-g5258 From ec68373c04495edbe39fb94fad963fb781e062e5 Mon Sep 17 00:00:00 2001 From: Len Brown Date: Wed, 23 Jan 2008 22:41:20 -0500 Subject: Revert "ACPI: Fan: Drop force_power_state acpi_device option" This reverts commit 93ad7c07ad487b036add8760dabcc35666a550ef. http://bugzilla.kernel.org/show_bug.cgi?id=9798 Signed-off-by: Len Brown --- drivers/acpi/bus.c | 2 +- drivers/acpi/fan.c | 40 ++++++++++++++++++++++++++++++++++++++++ 2 files changed, 41 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index d7a115c362d..f4487c38d9f 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -200,7 +200,7 @@ int acpi_bus_set_power(acpi_handle handle, int state) * Get device's current power state */ acpi_bus_get_power(device->handle, &device->power.state); - if (state == device->power.state) { + if ((state == device->power.state) && !device->flags.force_power_state) { ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device is already at D%d\n", state)); return 0; diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c index a5a5532db26..a6e149d692c 100644 --- a/drivers/acpi/fan.c +++ b/drivers/acpi/fan.c @@ -47,6 +47,8 @@ MODULE_LICENSE("GPL"); static int acpi_fan_add(struct acpi_device *device); static int acpi_fan_remove(struct acpi_device *device, int type); +static int acpi_fan_suspend(struct acpi_device *device, pm_message_t state); +static int acpi_fan_resume(struct acpi_device *device); static const struct acpi_device_id fan_device_ids[] = { {"PNP0C0B", 0}, @@ -61,6 +63,8 @@ static struct acpi_driver acpi_fan_driver = { .ops = { .add = acpi_fan_add, .remove = acpi_fan_remove, + .suspend = acpi_fan_suspend, + .resume = acpi_fan_resume, }, }; @@ -191,6 +195,10 @@ static int acpi_fan_add(struct acpi_device *device) goto end; } + device->flags.force_power_state = 1; + acpi_bus_set_power(device->handle, state); + device->flags.force_power_state = 0; + result = acpi_fan_add_fs(device); if (result) goto end; @@ -216,6 +224,38 @@ static int acpi_fan_remove(struct acpi_device *device, int type) return 0; } +static int acpi_fan_suspend(struct acpi_device *device, pm_message_t state) +{ + if (!device) + return -EINVAL; + + acpi_bus_set_power(device->handle, ACPI_STATE_D0); + + return AE_OK; +} + +static int acpi_fan_resume(struct acpi_device *device) +{ + int result = 0; + int power_state = 0; + + if (!device) + return -EINVAL; + + result = acpi_bus_get_power(device->handle, &power_state); + if (result) { + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, + "Error reading fan power state\n")); + return result; + } + + device->flags.force_power_state = 1; + acpi_bus_set_power(device->handle, power_state); + device->flags.force_power_state = 0; + + return result; +} + static int __init acpi_fan_init(void) { int result = 0; -- cgit v1.2.3-18-g5258