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authorAshok Raj <ashok.raj@intel.com>2006-09-26 10:52:35 +0200
committerAndi Kleen <andi@basil.nowhere.org>2006-09-26 10:52:35 +0200
commit73fea175303926055440c06bc8894f0c5c58afc8 (patch)
tree466af16058837ab4f8a83210848ecddac20705d9 /include
parent40bee2ee73c745922e9b2d5595c46f19d1cf1b6f (diff)
[PATCH] i386: Support physical cpu hotplug for x86_64
This patch enables ACPI based physical CPU hotplug support for x86_64. Implements acpi_map_lsapic() and acpi_unmap_lsapic() to support physical cpu hotplug. Signed-off-by: Ashok Raj <ashok.raj@intel.com> Signed-off-by: Andi Kleen <ak@suse.de> Cc: Andi Kleen <ak@muc.de> Cc: "Brown, Len" <len.brown@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org>
Diffstat (limited to 'include')
-rw-r--r--include/asm-i386/smp.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/asm-i386/smp.h b/include/asm-i386/smp.h
index f87826039a5..32ac8c91d5c 100644
--- a/include/asm-i386/smp.h
+++ b/include/asm-i386/smp.h
@@ -84,6 +84,7 @@ static inline int hard_smp_processor_id(void)
extern int __cpu_disable(void);
extern void __cpu_die(unsigned int cpu);
+extern unsigned int num_processors;
#endif /* !__ASSEMBLY__ */