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authorPeter Zijlstra <peterz@infradead.org>2014-04-23 19:57:49 +0200
committerThomas Gleixner <tglx@linutronix.de>2015-07-27 14:06:22 +0200
commitc66e45edef51e1f54297ddaf202fc2dd00852734 (patch)
treec60759cb030b6642ed242e97bbf4f3a28362c3f9 /arch/m32r
parent70ed47390d10a7351e44c3a07c5de376780cb6c1 (diff)
downloadlinux-linaro-stable-c66e45edef51e1f54297ddaf202fc2dd00852734.tar.gz
m32r: 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/m32r')
-rw-r--r--arch/m32r/include/asm/atomic.h44
1 files changed, 10 insertions, 34 deletions
diff --git a/arch/m32r/include/asm/atomic.h b/arch/m32r/include/asm/atomic.h
index 31bb74adba08..7245463c1e98 100644
--- a/arch/m32r/include/asm/atomic.h
+++ b/arch/m32r/include/asm/atomic.h
@@ -94,6 +94,12 @@ static __inline__ int atomic_##op##_return(int i, atomic_t *v) \
ATOMIC_OPS(add)
ATOMIC_OPS(sub)
+#define CONFIG_ARCH_HAS_ATOMIC_OR
+
+ATOMIC_OP(and)
+ATOMIC_OP(or)
+ATOMIC_OP(xor)
+
#undef ATOMIC_OPS
#undef ATOMIC_OP_RETURN
#undef ATOMIC_OP
@@ -240,44 +246,14 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
}
-static __inline__ void atomic_clear_mask(unsigned long mask, atomic_t *addr)
+static __inline__ __deprecated void atomic_clear_mask(unsigned int mask, atomic_t *v)
{
- unsigned long flags;
- unsigned long tmp;
-
- local_irq_save(flags);
- __asm__ __volatile__ (
- "# atomic_clear_mask \n\t"
- DCACHE_CLEAR("%0", "r5", "%1")
- M32R_LOCK" %0, @%1; \n\t"
- "and %0, %2; \n\t"
- M32R_UNLOCK" %0, @%1; \n\t"
- : "=&r" (tmp)
- : "r" (addr), "r" (~mask)
- : "memory"
- __ATOMIC_CLOBBER
- );
- local_irq_restore(flags);
+ atomic_and(~mask, v);
}
-static __inline__ void atomic_set_mask(unsigned long mask, atomic_t *addr)
+static __inline__ __deprecated void atomic_set_mask(unsigned int mask, atomic_t *v)
{
- unsigned long flags;
- unsigned long tmp;
-
- local_irq_save(flags);
- __asm__ __volatile__ (
- "# atomic_set_mask \n\t"
- DCACHE_CLEAR("%0", "r5", "%1")
- M32R_LOCK" %0, @%1; \n\t"
- "or %0, %2; \n\t"
- M32R_UNLOCK" %0, @%1; \n\t"
- : "=&r" (tmp)
- : "r" (addr), "r" (mask)
- : "memory"
- __ATOMIC_CLOBBER
- );
- local_irq_restore(flags);
+ atomic_or(mask, v);
}
#endif /* _ASM_M32R_ATOMIC_H */