Commit-ID: 74b1bc505b058efdfef33e775df68d8324bbf8b8
Gitweb: http://git.kernel.org/tip/74b1bc505b058efdfef33e775df68d8324bbf8b8
Author: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
AuthorDate: Wed, 23 Apr 2014 19:56:20 +0200
Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitDate: Mon, 27 Jul 2015 14:06:22 +0200
m68k: 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: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
---
arch/m68k/include/asm/atomic.h | 14 ++++++++++----
1 file changed, 10 insertions(+), 4 deletions(-)
diff --git a/arch/m68k/include/asm/atomic.h b/arch/m68k/include/asm/atomic.h
index e85f047..c30e43e 100644
--- a/arch/m68k/include/asm/atomic.h
+++ b/arch/m68k/include/asm/atomic.h
@@ -77,6 +77,12 @@ static inline int atomic_##op##_return(int i, atomic_t * v) \
ATOMIC_OPS(add, +=, add)
ATOMIC_OPS(sub, -=, sub)
+#define CONFIG_ARCH_HAS_ATOMIC_OR
+
+ATOMIC_OP(and, &=, and)
+ATOMIC_OP(or, |=, or)
+ATOMIC_OP(xor, ^=, eor)
+
#undef ATOMIC_OPS
#undef ATOMIC_OP_RETURN
#undef ATOMIC_OP
@@ -170,14 +176,14 @@ static inline int atomic_add_negative(int i, atomic_t *v)
return c != 0;
}
-static inline void atomic_clear_mask(unsigned long mask, unsigned long *v)
+static inline __deprecated void atomic_clear_mask(unsigned int mask, atomic_t *v)
{
- __asm__ __volatile__("andl %1,%0" : "+m" (*v) : ASM_DI (~(mask)));
+ atomic_and(~mask, v);
}
-static inline void atomic_set_mask(unsigned long mask, unsigned long *v)
+static inline __deprecated void atomic_set_mask(unsigned int mask, atomic_t *v)
{
- __asm__ __volatile__("orl %1,%0" : "+m" (*v) : ASM_DI (mask));
+ atomic_or(mask, v);
}
static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
--
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