[PATCH 15/28] parisc: Provide atomic_{or,xor,and}

Peter Zijlstra
2015-07-16T17:34:05Z

[-- Attachment #1: peterz-parisc-atomic_logic_ops.patch --]
[-- Type: text/plain, Size: 864 bytes --]

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>
---
arch/parisc/include/asm/atomic.h | 9 +++++++++
1 file changed, 9 insertions(+)

--- a/arch/parisc/include/asm/atomic.h
+++ b/arch/parisc/include/asm/atomic.h
@@ -126,6 +126,12 @@ static __inline__ int atomic_##op##_retu
ATOMIC_OPS(add, +=)
ATOMIC_OPS(sub, -=)

+#define CONFIG_ARCH_HAS_ATOMIC_OR
+
+ATOMIC_OP(and, &=)
+ATOMIC_OP(or, |=)
+ATOMIC_OP(xor, ^=)
+
#undef ATOMIC_OPS
#undef ATOMIC_OP_RETURN
#undef ATOMIC_OP
@@ -185,6 +191,9 @@ static __inline__ s64 atomic64_##op##_re

ATOMIC64_OPS(add, +=)
ATOMIC64_OPS(sub, -=)
+ATOMIC64_OP(and, &=)
+ATOMIC64_OP(or, |=)
+ATOMIC64_OP(xor, ^=)

#undef ATOMIC64_OPS
#undef ATOMIC64_OP_RETURN