2 files changed, 3 insertions, 3 deletions

diff --git a/arch/x86/include/asm/mwait.h b/arch/x86/include/asm/mwait.h
index e28f8b723b5c..9d5252c9685c 100644
--- a/arch/x86/include/asm/mwait.h
+++ b/arch/x86/include/asm/mwait.h
@@ -21,7 +21,7 @@
 #define MWAIT_ECX_INTERRUPT_BREAK       0x1
 #define MWAITX_ECX_TIMER_ENABLE         BIT(1)
 #define MWAITX_MAX_LOOPS                ((u32)-1)
-#define MWAITX_DISABLE_CSTATES          0xf
+#define MWAITX_DISABLE_CSTATES          0xf0
 
 static inline void __monitor(const void *eax, unsigned long ecx,
                              unsigned long edx)
diff --git a/arch/x86/lib/delay.c b/arch/x86/lib/delay.c
index b7375dc6898f..c126571e5e2e 100644
--- a/arch/x86/lib/delay.c
+++ b/arch/x86/lib/delay.c
@@ -113,8 +113,8 @@ static void delay_mwaitx(unsigned long __loops)
                 __monitorx(raw_cpu_ptr(&cpu_tss_rw), 0, 0);
 
                 /*
-                 * AMD, like Intel, supports the EAX hint and EAX=0xf
-                 * means, do not enter any deep C-state and we use it
+                 * AMD, like Intel's MWAIT version, supports the EAX hint and
+                 * EAX=0xf0 means, do not enter any deep C-state and we use it
                  * here in delay() to minimize wakeup latency.
                  */
                 __mwaitx(MWAITX_DISABLE_CSTATES, delay, MWAITX_ECX_TIMER_ENABLE);