1 files changed, 5 insertions, 10 deletions

diff --git a/arch/i386/kernel/cpu/amd.c b/arch/i386/kernel/cpu/amd.c
index 2d47db482972..4fec702afd7e 100644
--- a/arch/i386/kernel/cpu/amd.c
+++ b/arch/i386/kernel/cpu/amd.c
@@ -53,6 +53,8 @@ static __cpuinit int amd_apic_timer_broken(void)
         return 0;
 }
 
+int force_mwait __cpuinitdata;
+
 static void __cpuinit init_amd(struct cpuinfo_x86 *c)
 {
         u32 l, h;
@@ -275,6 +277,9 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c)
 
         if (amd_apic_timer_broken())
                 set_bit(X86_FEATURE_LAPIC_TIMER_BROKEN, c->x86_capability);
+
+        if (c->x86 == 0x10 && !force_mwait)
+                clear_bit(X86_FEATURE_MWAIT, c->x86_capability);
 }
 
 static unsigned int __cpuinit amd_size_cache(struct cpuinfo_x86 * c, unsigned int size)
@@ -314,13 +319,3 @@ int __init amd_init_cpu(void)
         cpu_devs[X86_VENDOR_AMD] = &amd_cpu_dev;
         return 0;
 }
-
-//early_arch_initcall(amd_init_cpu);
-
-static int __init amd_exit_cpu(void)
-{
-        cpu_devs[X86_VENDOR_AMD] = NULL;
-        return 0;
-}
-
-late_initcall(amd_exit_cpu);