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>

diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 088fbdb..f1af718 100644 (file)
--- 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 207a7a1..cb19d65 100644 (file)
--- 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();
 }