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-rw-r--r--src/arch/x86/include/arch/cpu.h6
-rw-r--r--src/arch/x86/include/arch/smp/spinlock.h7
2 files changed, 6 insertions, 7 deletions
diff --git a/src/arch/x86/include/arch/cpu.h b/src/arch/x86/include/arch/cpu.h
index 82f470ec2d..b622465a25 100644
--- a/src/arch/x86/include/arch/cpu.h
+++ b/src/arch/x86/include/arch/cpu.h
@@ -269,6 +269,12 @@ static inline void get_fms(struct cpuinfo_x86 *c, uint32_t tfms)
}
+/* REP NOP (PAUSE) is a good thing to insert into busy-wait loops. */
+static __always_inline void cpu_relax(void)
+{
+ __asm__ __volatile__("rep;nop" : : : "memory");
+}
+
#define asmlinkage __attribute__((regparm(0)))
/*
diff --git a/src/arch/x86/include/arch/smp/spinlock.h b/src/arch/x86/include/arch/smp/spinlock.h
index 41189933d9..a05d47a233 100644
--- a/src/arch/x86/include/arch/smp/spinlock.h
+++ b/src/arch/x86/include/arch/smp/spinlock.h
@@ -62,12 +62,6 @@ static __always_inline void spin_unlock(spinlock_t *lock)
: "=m" (lock->lock) : : "memory");
}
-/* REP NOP (PAUSE) is a good thing to insert into busy-wait loops. */
-static __always_inline void cpu_relax(void)
-{
- __asm__ __volatile__("rep;nop" : : : "memory");
-}
-
#else
#define DECLARE_SPIN_LOCK(x)
@@ -76,7 +70,6 @@ static __always_inline void cpu_relax(void)
#define spin_unlock_wait(lock) do {} while (0)
#define spin_lock(lock) do {} while (0)
#define spin_unlock(lock) do {} while (0)
-#define cpu_relax() do {} while (0)
#endif