x86: move vgetcpu mode probing to cpu detection

Take it out of time initialization and move it to
cpu detection time.

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

2 files changed, 12 insertions, 4 deletions

diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 088fbdb6734e..f1af71851919 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -719,12 +719,24 @@ static void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
 #endif
 }
 
+#ifdef CONFIG_X86_64
+static void vgetcpu_set_mode(void)
+{
+        if (cpu_has(&boot_cpu_data, X86_FEATURE_RDTSCP))
+                vgetcpu_mode = VGETCPU_RDTSCP;
+        else
+                vgetcpu_mode = VGETCPU_LSL;
+}
+#endif
+
 void __init identify_boot_cpu(void)
 {
         identify_cpu(&boot_cpu_data);
 #ifdef CONFIG_X86_32
         sysenter_setup();
         enable_sep_cpu();
+#else
+        vgetcpu_set_mode();
 #endif
 }
 
diff --git a/arch/x86/kernel/time_64.c b/arch/x86/kernel/time_64.c
index 207a7a1d7ac5..cb19d650c216 100644
--- a/arch/x86/kernel/time_64.c
+++ b/arch/x86/kernel/time_64.c
@@ -130,10 +130,6 @@ void __init hpet_time_init(void)
 void __init time_init(void)
 {
         tsc_init();
-        if (cpu_has(&boot_cpu_data, X86_FEATURE_RDTSCP))
-                vgetcpu_mode = VGETCPU_RDTSCP;
-        else
-                vgetcpu_mode = VGETCPU_LSL;
 
         late_time_init = choose_time_init();
 }