x86: move cpu_coregroup_map to common file

it is equal between architectures
Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

arch/x86/kernel/smpboot.c

 #include <linux/init.h>
 #include <linux/smp.h>
 #include <linux/module.h>
+#include <linux/sched.h>
 
 /* Number of siblings per CPU package */
 int smp_num_siblings = 1;
@@ -95,6 +96,21 @@ void __cpuinit set_cpu_sibling_map(int cpu)
 	}
 }
 
+/* maps the cpu to the sched domain representing multi-core */
+cpumask_t cpu_coregroup_map(int cpu)
+{
+	struct cpuinfo_x86 *c = &cpu_data(cpu);
+	/*
+	 * For perf, we return last level cache shared map.
+	 * And for power savings, we return cpu_core_map
+	 */
+	if (sched_mc_power_savings || sched_smt_power_savings)
+		return per_cpu(cpu_core_map, cpu);
+	else
+		return c->llc_shared_map;
+}
+
+
 #ifdef CONFIG_HOTPLUG_CPU
 void remove_siblinginfo(int cpu)
 {

arch/x86/kernel/smpboot_32.c

@@ -260,20 +260,6 @@ static void __cpuinit smp_callin(void)
 
 static int cpucount;
 
-/* maps the cpu to the sched domain representing multi-core */
-cpumask_t cpu_coregroup_map(int cpu)
-{
-	struct cpuinfo_x86 *c = &cpu_data(cpu);
-	/*
-	 * For perf, we return last level cache shared map.
-	 * And for power savings, we return cpu_core_map
-	 */
-	if (sched_mc_power_savings || sched_smt_power_savings)
-		return per_cpu(cpu_core_map, cpu);
-	else
-		return c->llc_shared_map;
-}
-
 /*
  * Activate a secondary processor.
  */

arch/x86/kernel/smpboot_64.c

@@ -211,20 +211,6 @@ void __cpuinit smp_callin(void)
 	cpu_set(cpuid, cpu_callin_map);
 }
 
-/* maps the cpu to the sched domain representing multi-core */
-cpumask_t cpu_coregroup_map(int cpu)
-{
-	struct cpuinfo_x86 *c = &cpu_data(cpu);
-	/*
-	 * For perf, we return last level cache shared map.
-	 * And for power savings, we return cpu_core_map
-	 */
-	if (sched_mc_power_savings || sched_smt_power_savings)
-		return per_cpu(cpu_core_map, cpu);
-	else
-		return c->llc_shared_map;
-}
-
 /*
  * Setup code on secondary processor (after comming out of the trampoline)
  */