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.

Acked-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

diff --git a/arch/mips/include/asm/atomic.h b/arch/mips/include/asm/atomic.h
index 26d4363..0430ba6 100644 (file)
--- a/arch/mips/include/asm/atomic.h
+++ b/arch/mips/include/asm/atomic.h
@@ -137,6 +137,12 @@ static __inline__ int atomic_##op##_return(int i, atomic_t * v)                  \
 ATOMIC_OPS(add, +=, addu)
 ATOMIC_OPS(sub, -=, subu)
 
+#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
@@ -416,6 +422,9 @@ static __inline__ long atomic64_##op##_return(long i, atomic64_t * v)             \
 
 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