1 files changed, 5 insertions, 2 deletions

diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index 8f5cabb3c5b0..b13ed393dfce 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -612,8 +612,11 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c)
         }
 #endif
 
-        /* As a rule processors have APIC timer running in deep C states */
-        if (c->x86 > 0xf && !cpu_has_amd_erratum(amd_erratum_400))
+        /*
+         * Family 0x12 and above processors have APIC timer
+         * running in deep C states.
+         */
+        if (c->x86 > 0x11)
                 set_cpu_cap(c, X86_FEATURE_ARAT);
 
         /*