diff options
| author | Len Brown <len.brown@intel.com> | 2008-01-23 20:50:56 -0500 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2008-01-23 21:26:15 -0500 |
| commit | d4b7dc499daae909e62dc260b95cd618f2970ded (patch) | |
| tree | d24816be9d0830724e35f322c515dc8db38d4a2e /include | |
| parent | 7ce95ce5c6dbbc3f70933f04537860ffd9dbe17e (diff) | |
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 <len.brown@intel.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/acpi.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/include/linux/acpi.h b/include/linux/acpi.h index e3c16c981e46..63f2e6ed698f 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h | |||
| @@ -40,6 +40,7 @@ | |||
| 40 | #include <acpi/acpi_drivers.h> | 40 | #include <acpi/acpi_drivers.h> |
| 41 | #include <acpi/acpi_numa.h> | 41 | #include <acpi/acpi_numa.h> |
| 42 | #include <asm/acpi.h> | 42 | #include <asm/acpi.h> |
| 43 | #include <linux/dmi.h> | ||
| 43 | 44 | ||
| 44 | 45 | ||
| 45 | #ifdef CONFIG_ACPI | 46 | #ifdef CONFIG_ACPI |
| @@ -192,7 +193,9 @@ extern int ec_transaction(u8 command, | |||
| 192 | #endif /*CONFIG_ACPI_EC*/ | 193 | #endif /*CONFIG_ACPI_EC*/ |
| 193 | 194 | ||
| 194 | extern int acpi_blacklisted(void); | 195 | extern int acpi_blacklisted(void); |
| 195 | extern void acpi_bios_year(char *s); | 196 | #ifdef CONFIG_DMI |
| 197 | extern void acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d); | ||
| 198 | #endif | ||
| 196 | 199 | ||
| 197 | #ifdef CONFIG_ACPI_NUMA | 200 | #ifdef CONFIG_ACPI_NUMA |
| 198 | int acpi_get_pxm(acpi_handle handle); | 201 | int acpi_get_pxm(acpi_handle handle); |
| @@ -226,5 +229,5 @@ static inline int acpi_boot_table_init(void) | |||
| 226 | return 0; | 229 | return 0; |
| 227 | } | 230 | } |
| 228 | 231 | ||
| 229 | #endif /* CONFIG_ACPI */ | 232 | #endif /* !CONFIG_ACPI */ |
| 230 | #endif /*_LINUX_ACPI_H*/ | 233 | #endif /*_LINUX_ACPI_H*/ |