From a6e0887f21bbab337ee32d9c0a84d7c0b6e9141b Mon Sep 17 00:00:00 2001 From: Len Brown Date: Sat, 8 Nov 2008 01:21:10 -0500 Subject: ACPI: delete OSI(Linux) DMI dmesg spam Linux will continue to ignore OSI(Linux), except for a white-list containing a few systems. So delete the black-list, and stop soliciting user-feedback on the console. Signed-off-by: Len Brown --- drivers/acpi/blacklist.c | 401 +---------------------------------------------- drivers/acpi/osl.c | 104 +++--------- 2 files changed, 30 insertions(+), 475 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c index ea92bac42c5..09c69806c1f 100644 --- a/drivers/acpi/blacklist.c +++ b/drivers/acpi/blacklist.c @@ -176,16 +176,6 @@ 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; -} static int __init dmi_disable_osi_vista(const struct dmi_system_id *d) { printk(KERN_NOTICE PREFIX "DMI detected: %s\n", d->ident); @@ -193,295 +183,21 @@ static int __init dmi_disable_osi_vista(const struct dmi_system_id *d) 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 3100"), - * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5050"), - * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"), - * 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"), - */ - /* - * note that dmi_check_system() uses strstr() - * to match sub-strings rather than !strcmp(), - * so "Acer" below matches "Acer, inc." above. - */ - /* - * Disable OSI(Linux) warnings on all "Acer" - * - * _OSI(Linux) effect unknown: - * 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"), - * - * _OSI(Linux) is a NOP: - * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5315"), - * DMI_MATCH(DMI_PRODUCT_NAME, "Extensa 5220"), - */ - { - .callback = dmi_disable_osi_linux, - .ident = "Acer", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Acer"), - }, - }, - /* - * Disable OSI(Linux) warnings on all "Apple Computer, Inc." - * Disable OSI(Linux) warnings on all "Apple 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"), - * DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro3,1"), - * _OSI(Linux) effect unknown: - * DMI_MATCH(DMI_PRODUCT_NAME, "MacPro2,1"), - * DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro1,1"), - */ - { - .callback = dmi_disable_osi_linux, - .ident = "Apple", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Apple"), - }, - }, - /* - * 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_disable_osi_linux, - .ident = "Compal", - .matches = { - DMI_MATCH(DMI_BIOS_VENDOR, "COMPAL"), - }, - }, - { /* OSI(Linux) touches USB, unknown side-effect */ - .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 i1501", - .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 Latitude D830", - .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 OptiPlex GX620", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex GX620"), - }, - }, - { /* OSI(Linux) causes some USB initialization to not run */ - .callback = dmi_unknown_osi_linux, - .ident = "Dell OptiPlex 755", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 755"), - }, - }, - { /* OSI(Linux) effect unknown */ - .callback = dmi_unknown_osi_linux, - .ident = "Dell PE 1900", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge 1900"), - }, - }, - { /* OSI(Linux) is a NOP */ - .callback = dmi_unknown_osi_linux, - .ident = "Dell PE 1950", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge 1950"), - }, - }, - { /* OSI(Linux) is a NOP */ - .callback = dmi_disable_osi_linux, - .ident = "Dell PE R200", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge R200"), - }, - }, - { /* OSI(Linux) touches USB */ - .callback = dmi_disable_osi_linux, - .ident = "Dell PR 390", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "Precision WorkStation 390"), - }, - }, - { /* OSI(Linux) touches USB */ - .callback = dmi_unknown_osi_linux, - .ident = "Dell PR 390", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "Precision WorkStation 690"), - }, - }, - { /* OSI(Linux) unknown - ASL looks benign, but may effect dock/SMM */ - .callback = dmi_unknown_osi_linux, - .ident = "Dell PR M4300", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "Precision M4300"), - }, - }, - { /* 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 PE SC440", - .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"), - * DMI_MATCH(DMI_PRODUCT_NAME, "ESPRIMO Mobile V5505"), - * _OSI(Linux) unknown effect: - * DMI_MATCH(DMI_PRODUCT_NAME, "Amilo M1425"), - * DMI_MATCH(DMI_PRODUCT_NAME, "Amilo Si 1520"), - */ - { - .callback = dmi_disable_osi_linux, - .ident = "Fujitsu Siemens", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), - }, - }, { .callback = dmi_disable_osi_vista, .ident = "Fujitsu Siemens", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), - DMI_MATCH(DMI_PRODUCT_NAME, "ESPRIMO Mobile V5505"), + DMI_MATCH(DMI_PRODUCT_NAME, "ESPRIMO Mobile V5505"), }, }, + /* - * 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"), + * BIOS invocation of _OSI(Linux) is almost always a BIOS bug. + * Linux ignores it, except for the machines enumerated below. */ - { - .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. @@ -519,113 +235,6 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = { DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X61"), }, }, - { - .callback = dmi_disable_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"), - * with DMI_MATCH(DMI_BOARD_NAME, "ROCKY"), - * - * unknown: - * DMI_MATCH(DMI_PRODUCT_NAME, "S1-MDGDG"), - * with DMI_MATCH(DMI_BOARD_NAME, "ROCKY"), - */ - { - .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"), - }, - }, - /* Panasonic */ - { - .callback = dmi_unknown_osi_linux, - .ident = "Panasonic", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Matsushita"), - /* Toughbook CF-52 */ - DMI_MATCH(DMI_PRODUCT_NAME, "CF-52CCABVBG"), - }, - }, - /* - * 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-NR11S_S"), - * DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SZ38GP_C"), - * DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SZ650N"), - * DMI_MATCH(DMI_PRODUCT_NAME, "VGN-TZ21MN_N"), - * _OSI(Linux) unknown effect: - * DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FZ11M"), - */ - { - .callback = dmi_disable_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"), - }, - }, {} }; diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 4be252145cb..c8111424dcb 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -35,7 +35,6 @@ #include #include #include -#include #include #include #include @@ -97,54 +96,44 @@ static DEFINE_SPINLOCK(acpi_res_lock); static char osi_additional_string[OSI_STRING_LENGTH_MAX]; /* - * "Ode to _OSI(Linux)" + * The story of _OSI(Linux) * - * osi_linux -- Control response to BIOS _OSI(Linux) query. + * From pre-history through Linux-2.6.22, + * Linux responded TRUE upon a 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, 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. * - * 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. + * 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. * - * 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. + * 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. - * 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. + * 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" */ -#define OSI_LINUX_ENABLE 0 static 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}; +} osi_linux = { 0, 0, 0, 0}; static void __init acpi_request_region (struct acpi_generic_address *addr, unsigned int length, char *desc) @@ -1296,34 +1285,6 @@ 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 - */ -static int acpi_dmi_dump(void) -{ - - if (!dmi_available) - return -1; - - printk(KERN_NOTICE PREFIX "DMI System Vendor: %s\n", - dmi_get_system_info(DMI_SYS_VENDOR)); - printk(KERN_NOTICE PREFIX "DMI Product Name: %s\n", - dmi_get_system_info(DMI_PRODUCT_NAME)); - printk(KERN_NOTICE PREFIX "DMI Product Version: %s\n", - dmi_get_system_info(DMI_PRODUCT_VERSION)); - printk(KERN_NOTICE PREFIX "DMI Board Name: %s\n", - dmi_get_system_info(DMI_BOARD_NAME)); - printk(KERN_NOTICE PREFIX "DMI BIOS Vendor: %s\n", - dmi_get_system_info(DMI_BIOS_VENDOR)); - printk(KERN_NOTICE PREFIX "DMI BIOS Date: %s\n", - dmi_get_system_info(DMI_BIOS_DATE)); - - return 0; -} - - /****************************************************************************** * * FUNCTION: acpi_os_validate_interface @@ -1350,21 +1311,6 @@ acpi_os_validate_interface (char *interface) 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; } -- cgit v1.2.3