arm64: Provide atomic_{or,xor,and}

Implement atomic logic ops -- atomic_{or,xor,and}.

These will replace the atomic_{set,clear}_mask functions that are
available on some archs.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

diff --git a/arch/arm64/include/asm/atomic.h b/arch/arm64/include/asm/atomic.h
index 7047051ded40e3e9c3cc944fe0ce456bb6eaf897..2876173397b28bc7ed66b484c92930f3915a4fbe 100644 (file)
--- a/arch/arm64/include/asm/atomic.h
+++ b/arch/arm64/include/asm/atomic.h
@@ -85,6 +85,14 @@ static inline int atomic_##op##_return(int i, atomic_t *v)           \
 ATOMIC_OPS(add, add)
 ATOMIC_OPS(sub, sub)
 
+#define CONFIG_ARCH_HAS_ATOMIC_OR
+#define atomic_andnot atomic_andnot
+
+ATOMIC_OP(and, and)
+ATOMIC_OP(andnot, bic)
+ATOMIC_OP(or, orr)
+ATOMIC_OP(xor, eor)
+
 #undef ATOMIC_OPS
 #undef ATOMIC_OP_RETURN
 #undef ATOMIC_OP
@@ -183,6 +191,13 @@ static inline long atomic64_##op##_return(long i, atomic64_t *v)   \
 ATOMIC64_OPS(add, add)
 ATOMIC64_OPS(sub, sub)
 
+#define atomic64_andnot atomic64_andnot
+
+ATOMIC64_OP(and, and)
+ATOMIC64_OP(andnot, bic)
+ATOMIC64_OP(or, orr)
+ATOMIC64_OP(xor, eor)
+
 #undef ATOMIC64_OPS
 #undef ATOMIC64_OP_RETURN
 #undef ATOMIC64_OP