diff --git a/include/asm-x86_64/processor.h b/include/asm-x86_64/processor.h
index e583f0d..3b3c121 100644
--- a/include/asm-x86_64/processor.h
+++ b/include/asm-x86_64/processor.h
@@ -69,7 +69,11 @@
 	cpumask_t llc_shared_map;	/* cpus sharing the last level cache */
 #endif
 	__u8	apicid;
+#ifdef CONFIG_SMP
 	__u8	booted_cores;	/* number of cores as seen by OS */
+	__u8	phys_proc_id;	/* Physical Processor id. */
+	__u8	cpu_core_id;	/* Core id. */
+#endif
 } ____cacheline_aligned;
 
 #define X86_VENDOR_INTEL 0
diff --git a/include/asm-x86_64/smp.h b/include/asm-x86_64/smp.h
index 7686b9b..6805e1f 100644
--- a/include/asm-x86_64/smp.h
+++ b/include/asm-x86_64/smp.h
@@ -53,8 +53,6 @@
 
 extern cpumask_t cpu_sibling_map[NR_CPUS];
 extern cpumask_t cpu_core_map[NR_CPUS];
-extern u8 phys_proc_id[NR_CPUS];
-extern u8 cpu_core_id[NR_CPUS];
 extern u8 cpu_llc_id[NR_CPUS];
 
 #define SMP_TRAMPOLINE_BASE 0x6000
diff --git a/include/asm-x86_64/topology.h b/include/asm-x86_64/topology.h
index d4009f8..c4e46e7 100644
--- a/include/asm-x86_64/topology.h
+++ b/include/asm-x86_64/topology.h
@@ -55,10 +55,8 @@
 #endif
 
 #ifdef CONFIG_SMP
-#define topology_physical_package_id(cpu)				\
-	(phys_proc_id[cpu] == BAD_APICID ? -1 : phys_proc_id[cpu])
-#define topology_core_id(cpu)						\
-	(cpu_core_id[cpu] == BAD_APICID ? 0 : cpu_core_id[cpu])
+#define topology_physical_package_id(cpu)	(cpu_data[cpu].phys_proc_id)
+#define topology_core_id(cpu)			(cpu_data[cpu].cpu_core_id)
 #define topology_core_siblings(cpu)		(cpu_core_map[cpu])
 #define topology_thread_siblings(cpu)		(cpu_sibling_map[cpu])
 #endif