diff --git a/arch/x86/include/asm/mach-default/mach_mpspec.h b/arch/x86/include/asm/mach-default/mach_mpspec.h
deleted file mode 100644
index e85ede686be8e91d5e18f43b3dcb2685ca696343..0000000000000000000000000000000000000000
--- a/arch/x86/include/asm/mach-default/mach_mpspec.h
+++ /dev/null
@@ -1,12 +0,0 @@
-#ifndef _ASM_X86_MACH_DEFAULT_MACH_MPSPEC_H
-#define _ASM_X86_MACH_DEFAULT_MACH_MPSPEC_H
-
-#define MAX_IRQ_SOURCES 256
-
-#if CONFIG_BASE_SMALL == 0
-#define MAX_MP_BUSSES 256
-#else
-#define MAX_MP_BUSSES 32
-#endif
-
-#endif /* _ASM_X86_MACH_DEFAULT_MACH_MPSPEC_H */
diff --git a/arch/x86/include/asm/mach-generic/mach_mpspec.h b/arch/x86/include/asm/mach-generic/mach_mpspec.h
deleted file mode 100644
index 3bc40722657838886b1cd156e21c68b525f2a8b7..0000000000000000000000000000000000000000
--- a/arch/x86/include/asm/mach-generic/mach_mpspec.h
+++ /dev/null
@@ -1,12 +0,0 @@
-#ifndef _ASM_X86_MACH_GENERIC_MACH_MPSPEC_H
-#define _ASM_X86_MACH_GENERIC_MACH_MPSPEC_H
-
-#define MAX_IRQ_SOURCES 256
-
-/* Summit or generic (i.e. installer) kernels need lots of bus entries. */
-/* Maximum 256 PCI busses, plus 1 ISA bus in each of 4 cabinets. */
-#define MAX_MP_BUSSES 260
-
-extern void numaq_mps_oem_check(struct mpc_table *, char *, char *);
-
-#endif /* _ASM_X86_MACH_GENERIC_MACH_MPSPEC_H */
diff --git a/arch/x86/include/asm/mpspec.h b/arch/x86/include/asm/mpspec.h
index 432e9cbc6076206d303e8c89eeee7a3897eb84a1..03fb0d396543105e3a05b8ab764a9bcfc2d86dc5 100644
--- a/arch/x86/include/asm/mpspec.h
+++ b/arch/x86/include/asm/mpspec.h
@@ -9,7 +9,18 @@ extern int apic_version[MAX_APICS];
 extern int pic_mode;
 
 #ifdef CONFIG_X86_32
-#include <mach_mpspec.h>
+
+/*
+ * Summit or generic (i.e. installer) kernels need lots of bus entries.
+ * Maximum 256 PCI busses, plus 1 ISA bus in each of 4 cabinets.
+ */
+#if CONFIG_BASE_SMALL == 0
+# define MAX_MP_BUSSES		260
+#else
+# define MAX_MP_BUSSES		32
+#endif
+
+#define MAX_IRQ_SOURCES		256
 
 extern unsigned int def_to_bigsmp;
 extern u8 apicid_2_node[];
@@ -20,15 +31,15 @@ extern int mp_bus_id_to_local[MAX_MP_BUSSES];
 extern int quad_local_to_mp_bus_id [NR_CPUS/4][4];
 #endif
 
-#define MAX_APICID 256
+#define MAX_APICID		256
 
-#else
+#else /* CONFIG_X86_64: */
 
-#define MAX_MP_BUSSES 256
+#define MAX_MP_BUSSES		256
 /* Each PCI slot may be a combo card with its own bus.  4 IRQ pins per slot. */
-#define MAX_IRQ_SOURCES (MAX_MP_BUSSES * 4)
+#define MAX_IRQ_SOURCES		(MAX_MP_BUSSES * 4)
 
-#endif
+#endif /* CONFIG_X86_64 */
 
 extern void early_find_smp_config(void);
 extern void early_get_smp_config(void);
@@ -146,4 +157,6 @@ extern int generic_mps_oem_check(struct mpc_table *, char *, char *);
 
 extern int default_acpi_madt_oem_check(char *, char *);
 
+extern void numaq_mps_oem_check(struct mpc_table *, char *, char *);
+
 #endif /* _ASM_X86_MPSPEC_H */