2015-07-09 17:59:18

by Peter Zijlstra

Subject: [RFC][PATCH 12/24] mips: 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) <[email protected]>
---
arch/mips/include/asm/atomic.h | 6 ++++++
1 file changed, 6 insertions(+)

--- a/arch/mips/include/asm/atomic.h
+++ b/arch/mips/include/asm/atomic.h
@@ -136,6 +136,9 @@ static __inline__ int atomic_##op##_retu

ATOMIC_OPS(add, +=, addu)
ATOMIC_OPS(sub, -=, subu)
+ATOMIC_OP(and, &=, and)
+ATOMIC_OP(or, |=, or)
+ATOMIC_OP(xor, ^=, xor)

#undef ATOMIC_OPS
#undef ATOMIC_OP_RETURN
@@ -416,6 +419,9 @@ static __inline__ long atomic64_##op##_r

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

#undef ATOMIC64_OPS
#undef ATOMIC64_OP_RETURN

2015-07-09 19:56:53

by Ralf Baechle

Subject: Re: [RFC][PATCH 12/24] mips: Provide atomic_{or,xor,and}

On Thu, Jul 09, 2015 at 07:29:07PM +0200, Peter Zijlstra wrote:

> 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: Ralf Baechle <[email protected]>