x86: create smpcommon.c

This patch creates smpcommon.c with functions that are
equal between architectures. The i386-only init_gdt
is ifdef'd.

Note that smpcommon.o figures twice in the Makefile:
this is because sub-architectures like voyager that does
not use the normal smp_$(BITS) files also have to access them

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index 4c68bfc..018d04d 100644 (file)
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -47,8 +47,8 @@ obj-$(CONFIG_PCI)             += early-quirks.o
 apm-y                          := apm_32.o
 obj-$(CONFIG_APM)              += apm.o
 obj-$(CONFIG_X86_SMP)          += smp_$(BITS).o smpboot_$(BITS).o smpboot.o tsc_sync.o
-obj-$(CONFIG_X86_32_SMP)       += smpcommon_32.o
-obj-$(CONFIG_X86_64_SMP)       += smp_64.o smpboot_64.o tsc_sync.o
+obj-$(CONFIG_X86_32_SMP)       += smpcommon.o
+obj-$(CONFIG_X86_64_SMP)       += smp_64.o smpboot_64.o tsc_sync.o smpcommon.o
 obj-$(CONFIG_X86_TRAMPOLINE)   += trampoline_$(BITS).o
 obj-$(CONFIG_X86_MPPARSE)      += mpparse_$(BITS).o
 obj-$(CONFIG_X86_LOCAL_APIC)   += apic_$(BITS).o nmi_$(BITS).o

diff --cc arch/x86/kernel/smp_64.c
Simple merge

diff --cc arch/x86/kernel/smpcommon.c
Simple merge

diff --cc arch/x86/kernel/smpcommon_32.c
Simple merge