x86: provide specialized identification routines for x86_64

provide two specialized identify_secondary_cpu() and identify_boot_cpu()
routines for x86_64. Although not strictly needed, they are functionally
correct, and will ease integration with i386

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index 13fe525..9907241 100644 (file)
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -1036,14 +1036,24 @@ void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
 #endif
        select_idle_routine(c);
 
-       if (c != &boot_cpu_data)
-               mtrr_ap_init();
 #ifdef CONFIG_NUMA
        numa_add_cpu(smp_processor_id());
 #endif
 
 }
 
+void __cpuinit identify_boot_cpu(void)
+{
+       identify_cpu(&boot_cpu_data);
+}
+
+void __cpuinit identify_secondary_cpu(struct cpuinfo_x86 *c)
+{
+       BUG_ON(c == &boot_cpu_data);
+       identify_cpu(c);
+       mtrr_ap_init();
+}
+
 static __init int setup_noclflush(char *arg)
 {
        setup_clear_cpu_cap(X86_FEATURE_CLFLSH);