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authorVenkatesh Pallipadi <venkatesh.pallipadi@intel.com>2005-10-23 16:31:00 -0400
committerLen Brown <len.brown@intel.com>2005-12-01 01:30:35 -0500
commit05131ecc99ea9da7f45ba3058fe8a2c1d0ceeab8 (patch)
treedec76975406874cf677d6391302f42a6da55ac38 /include/asm-i386/acpi.h
parentd2149b542382bfc206cb28485108f6470c979566 (diff)
[ACPI] Avoid BIOS inflicted crashes by evaluating _PDC only once
Linux invokes the AML _PDC method (Processor Driver Capabilities) to tell the BIOS what features it can handle. While the ACPI spec says nothing about the OS invoking _PDC multiple times, doing so with changing bits seems to hopelessly confuse the BIOS on multiple platforms up to and including crashing the system. Factor out the _PDC invocation so Linux invokes it only once. http://bugzilla.kernel.org/show_bug.cgi?id=5483 Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'include/asm-i386/acpi.h')
-rw-r--r--include/asm-i386/acpi.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/asm-i386/acpi.h b/include/asm-i386/acpi.h
index df4ed323aa4d..55059abf9c95 100644
--- a/include/asm-i386/acpi.h
+++ b/include/asm-i386/acpi.h
@@ -179,7 +179,7 @@ extern void acpi_reserve_bootmem(void);
extern u8 x86_acpiid_to_apicid[];
-#define ARCH_HAS_POWER_PDC_INIT 1
+#define ARCH_HAS_POWER_INIT 1
#endif /*__KERNEL__*/