1 files changed, 3 insertions, 0 deletions

diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index f4773f4aae3..0a44b90602b 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -5,6 +5,7 @@
 #include <linux/mm.h>
 
 #include <linux/io.h>
+#include <linux/sched.h>
 #include <asm/processor.h>
 #include <asm/apic.h>
 #include <asm/cpu.h>
@@ -456,6 +457,8 @@ static void __cpuinit early_init_amd(struct cpuinfo_x86 *c)
         if (c->x86_power & (1 << 8)) {
                 set_cpu_cap(c, X86_FEATURE_CONSTANT_TSC);
                 set_cpu_cap(c, X86_FEATURE_NONSTOP_TSC);
+                if (!check_tsc_unstable())
+                        sched_clock_stable = 1;
         }
 
 #ifdef CONFIG_X86_64