diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index 5e1537b62534..212804e78787 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -18,7 +18,7 @@ CFLAGS_tsc_64.o		:= $(nostackp)
 obj-y			:= process_$(BITS).o signal_$(BITS).o entry_$(BITS).o
 obj-y			+= traps_$(BITS).o irq_$(BITS).o
 obj-y			+= time_$(BITS).o ioport.o ldt.o
-obj-y			+= setup_$(BITS).o i8259.o irqinit_$(BITS).o setup_percpu.o
+obj-y			+= setup.o i8259.o irqinit_$(BITS).o setup_percpu.o
 obj-$(CONFIG_X86_32)	+= probe_roms_32.o
 obj-$(CONFIG_X86_32)	+= sys_i386_32.o i386_ksyms_32.o
 obj-$(CONFIG_X86_64)	+= sys_x86_64.o x8664_ksyms_64.o
diff --git a/arch/x86/kernel/setup_32.c b/arch/x86/kernel/setup.c
similarity index 99%
rename from arch/x86/kernel/setup_32.c
rename to arch/x86/kernel/setup.c
index 4d5f8a3eb7ea..222d7038f2fd 100644
--- a/arch/x86/kernel/setup_32.c
+++ b/arch/x86/kernel/setup.c
@@ -79,6 +79,7 @@
 #include <asm/mpspec.h>
 #include <asm/setup.h>
 #include <asm/arch_hooks.h>
+#include <asm/efi.h>
 #include <asm/sections.h>
 #include <asm/dmi.h>
 #include <asm/io_apic.h>
@@ -110,6 +111,9 @@
 #include <asm/sections.h>
 #include <asm/topology.h>
 #include <asm/apicdef.h>
+#ifdef CONFIG_X86_64
+#include <asm/numa_64.h>
+#endif
 #ifdef CONFIG_X86_32
 #include <asm/highmem.h>
 #endif
@@ -531,9 +535,6 @@ void __init setup_arch(char **cmdline_p)
 #endif
 
 	/* max_pfn_mapped is updated here */
-#ifdef CONFIG_X86_64
-	max_pfn_mapped =
-#endif
 	max_pfn_mapped = init_memory_mapping(0, (max_low_pfn << PAGE_SHIFT));
 
 	reserve_initrd();