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 --- include/linux/acpi.h | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/acpi.h b/include/linux/acpi.h index e3c16c981e4..63f2e6ed698 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -40,6 +40,7 @@ #include #include #include +#include #ifdef CONFIG_ACPI @@ -192,7 +193,9 @@ extern int ec_transaction(u8 command, #endif /*CONFIG_ACPI_EC*/ extern int acpi_blacklisted(void); -extern void acpi_bios_year(char *s); +#ifdef CONFIG_DMI +extern void acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d); +#endif #ifdef CONFIG_ACPI_NUMA int acpi_get_pxm(acpi_handle handle); @@ -226,5 +229,5 @@ static inline int acpi_boot_table_init(void) return 0; } -#endif /* CONFIG_ACPI */ +#endif /* !CONFIG_ACPI */ #endif /*_LINUX_ACPI_H*/ -- cgit v1.2.3