x86: seperate funcs from setup_64 to cpu common_64.c

Signed-off-by: Yinghai Lu <yhlu.kernel@mail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

arch/x86/kernel/cpu/Makefile

@@ -6,7 +6,7 @@ obj-y			:= intel_cacheinfo.o addon_cpuid_features.o
 obj-y			+= proc.o feature_names.o
 
 obj-$(CONFIG_X86_32)	+= common.o bugs.o
-obj-$(CONFIG_X86_64)	+= bugs_64.o
+obj-$(CONFIG_X86_64)	+= common_64.o bugs_64.o
 obj-$(CONFIG_X86_32)	+= amd.o
 obj-$(CONFIG_X86_64)	+= amd_64.o
 obj-$(CONFIG_X86_32)	+= cyrix.o

include/asm-x86/processor.h

@@ -153,6 +153,7 @@ static inline int hlt_works(int cpu)
 
 extern void cpu_detect(struct cpuinfo_x86 *c);
 
+extern void early_cpu_init(void);
 extern void identify_cpu(struct cpuinfo_x86 *);
 extern void identify_boot_cpu(void);
 extern void identify_secondary_cpu(struct cpuinfo_x86 *);