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authorPeter Zijlstra <peterz@infradead.org>2014-04-23 20:02:20 +0200
committerThomas Gleixner <tglx@linutronix.de>2015-07-27 14:06:22 +0200
commitf8a570e270bf62363cd498ac2ac8ea07a76ad4d6 (patch)
treedbe157ddbd610789ac921978286816e57fb6ff25 /arch/avr32/include
parent22288b40e2c7ab484a08a03df32782a67903912c (diff)
downloadlinux-f8a570e270bf62363cd498ac2ac8ea07a76ad4d6.tar.gz
avr32: 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>
Diffstat (limited to 'arch/avr32/include')
-rw-r--r--arch/avr32/include/asm/atomic.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/avr32/include/asm/atomic.h b/arch/avr32/include/asm/atomic.h
index 2d07ce1..115d300 100644
--- a/arch/avr32/include/asm/atomic.h
+++ b/arch/avr32/include/asm/atomic.h
@@ -44,6 +44,20 @@ static inline int __atomic_##op##_return(int i, atomic_t *v) \
ATOMIC_OP_RETURN(sub, sub, rKs21)
ATOMIC_OP_RETURN(add, add, r)
+#define ATOMIC_OP(op, asm_op) \
+ATOMIC_OP_RETURN(op, asm_op, r) \
+static inline void atomic_##op(int i, atomic_t *v) \
+{ \
+ (void)__atomic_##op##_return(i, v); \
+}
+
+#define CONFIG_ARCH_HAS_ATOMIC_OR
+
+ATOMIC_OP(and, and)
+ATOMIC_OP(or, or)
+ATOMIC_OP(xor, eor)
+
+#undef ATOMIC_OP
#undef ATOMIC_OP_RETURN
/*