Commit-ID: d0b7eb6ff2985c9350fdb297fa5727c35324d4df
Gitweb: http://git.kernel.org/tip/d0b7eb6ff2985c9350fdb297fa5727c35324d4df
Author: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
AuthorDate: Wed, 23 Apr 2014 19:46:23 +0200
Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitDate: Mon, 27 Jul 2015 14:06:23 +0200
powerpc: 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.
Acked-by: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
---
arch/powerpc/include/asm/atomic.h | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/arch/powerpc/include/asm/atomic.h b/arch/powerpc/include/asm/atomic.h
index 512d278..6ca89e2 100644
--- a/arch/powerpc/include/asm/atomic.h
+++ b/arch/powerpc/include/asm/atomic.h
@@ -67,6 +67,12 @@ static __inline__ int atomic_##op##_return(int a, atomic_t *v) \
ATOMIC_OPS(add, add)
ATOMIC_OPS(sub, subf)
+#define CONFIG_ARCH_HAS_ATOMIC_OR
+
+ATOMIC_OP(and, and)
+ATOMIC_OP(or, or)
+ATOMIC_OP(xor, xor)
+
#undef ATOMIC_OPS
#undef ATOMIC_OP_RETURN
#undef ATOMIC_OP
@@ -304,6 +310,9 @@ static __inline__ long atomic64_##op##_return(long a, atomic64_t *v) \
ATOMIC64_OPS(add, add)
ATOMIC64_OPS(sub, subf)
+ATOMIC64_OP(and, and)
+ATOMIC64_OP(or, or)
+ATOMIC64_OP(xor, xor)
#undef ATOMIC64_OPS
#undef ATOMIC64_OP_RETURN
--
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