x86: move mmconfig declarations to header

arch/x86/kernel/mmconf-fam10h_64.c is missing the prototypes, which
are decalred in arch/x86/kernel/setup_64.c. Move the prototypes and
the inline stubs to the appropriate header file.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86/kernel/mmconf-fam10h_64.c b/arch/x86/kernel/mmconf-fam10h_64.c
index edc5fbf..fdfdc55 100644
--- a/arch/x86/kernel/mmconf-fam10h_64.c
+++ b/arch/x86/kernel/mmconf-fam10h_64.c
@@ -12,6 +12,7 @@
 #include <asm/io.h>
 #include <asm/msr.h>
 #include <asm/acpi.h>
+#include <asm/mmconfig.h>
 
 #include "../pci/pci.h"
 
diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index 6dff128..341230d 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -71,6 +71,7 @@
 #include <asm/topology.h>
 #include <asm/trampoline.h>
 #include <asm/pat.h>
+#include <asm/mmconfig.h>
 
 #include <mach_apic.h>
 #ifdef CONFIG_PARAVIRT
@@ -293,18 +294,6 @@
 	}
 }
 
-#ifdef CONFIG_PCI_MMCONFIG
-extern void __cpuinit fam10h_check_enable_mmcfg(void);
-extern void __init check_enable_amd_mmconf_dmi(void);
-#else
-void __cpuinit fam10h_check_enable_mmcfg(void)
-{
-}
-void __init check_enable_amd_mmconf_dmi(void)
-{
-}
-#endif
-
 /*
  * setup_arch - architecture-specific boot-time initializations
  *
diff --git a/include/asm-x86/mmconfig.h b/include/asm-x86/mmconfig.h
new file mode 100644
index 0000000..95beda0
--- /dev/null
+++ b/include/asm-x86/mmconfig.h
@@ -0,0 +1,12 @@
+#ifndef _ASM_MMCONFIG_H
+#define _ASM_MMCONFIG_H
+
+#ifdef CONFIG_PCI_MMCONFIG
+extern void __cpuinit fam10h_check_enable_mmcfg(void);
+extern void __init check_enable_amd_mmconf_dmi(void);
+#else
+static inline void fam10h_check_enable_mmcfg(void) { }
+static inline void check_enable_amd_mmconf_dmi(void) { }
+#endif
+
+#endif