summaryrefslogtreecommitdiffstats
path: root/arch/x86/include/asm/atomic64_64.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/x86/include/asm/atomic64_64.h')
-rw-r--r--arch/x86/include/asm/atomic64_64.h15
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/x86/include/asm/atomic64_64.h b/arch/x86/include/asm/atomic64_64.h
index b965f9e03f2a..50e33eff58de 100644
--- a/arch/x86/include/asm/atomic64_64.h
+++ b/arch/x86/include/asm/atomic64_64.h
@@ -220,4 +220,19 @@ static inline long atomic64_dec_if_positive(atomic64_t *v)
return dec;
}
+#define ATOMIC64_OP(op) \
+static inline void atomic64_##op(long i, atomic64_t *v) \
+{ \
+ asm volatile(LOCK_PREFIX #op"q %1,%0" \
+ : "+m" (v->counter) \
+ : "er" (i) \
+ : "memory"); \
+}
+
+ATOMIC64_OP(and)
+ATOMIC64_OP(or)
+ATOMIC64_OP(xor)
+
+#undef ATOMIC64_OP
+
#endif /* _ASM_X86_ATOMIC64_64_H */