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Groups > linux.kernel > #1186150
| From | Peter Zijlstra <peterz@infradead.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 11/28] m68k: Provide atomic_{or,xor,and} |
| Date | 2015-07-16 19:50 +0200 |
| Message-ID | <pMVsf-5iT-43@gated-at.bofh.it> (permalink) |
| References | <pMVix-57c-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
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@linux-m68k.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
---
arch/m68k/include/asm/atomic.h | 14 ++++++++++----
1 file changed, 10 insertions(+), 4 deletions(-)
--- a/arch/m68k/include/asm/atomic.h
+++ b/arch/m68k/include/asm/atomic.h
@@ -77,6 +77,12 @@ static inline int atomic_##op##_return(i
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(in
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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[PATCH 00/28] arch: Provide atomic logic ops Peter Zijlstra <peterz@infradead.org> - 2015-07-16 19:40 +0200
[PATCH 19/28] xtensa: Provide atomic_{or,xor,and} Peter Zijlstra <peterz@infradead.org> - 2015-07-16 19:40 +0200
[PATCH 02/28] alpha: Provide atomic_{or,xor,and} Peter Zijlstra <peterz@infradead.org> - 2015-07-16 19:40 +0200
[PATCH 20/28] s390: Provide atomic_{or,xor,and} Peter Zijlstra <peterz@infradead.org> - 2015-07-16 19:50 +0200
[PATCH 22/28] frv: Rewrite atomic implementation Peter Zijlstra <peterz@infradead.org> - 2015-07-16 19:50 +0200
[PATCH 25/28] atomic: Provide atomic_{or,xor,and} Peter Zijlstra <peterz@infradead.org> - 2015-07-16 19:50 +0200
[PATCH 05/28] arm64: Provide atomic_{or,xor,and} Peter Zijlstra <peterz@infradead.org> - 2015-07-16 19:50 +0200
[PATCH 13/28] mips: Provide atomic_{or,xor,and} Peter Zijlstra <peterz@infradead.org> - 2015-07-16 19:50 +0200
[PATCH 14/28] mn10300: Provide atomic_{or,xor,and} Peter Zijlstra <peterz@infradead.org> - 2015-07-16 19:50 +0200
[PATCH 12/28] metag: Provide atomic_{or,xor,and} Peter Zijlstra <peterz@infradead.org> - 2015-07-16 19:50 +0200
[PATCH 26/28] atomic: Collapse all atomic_{set,clear}_mask definitions Peter Zijlstra <peterz@infradead.org> - 2015-07-16 19:50 +0200
[PATCH 04/28] arm: Provide atomic_{or,xor,and} Peter Zijlstra <peterz@infradead.org> - 2015-07-16 19:50 +0200
[PATCH 08/28] hexagon: Provide atomic_{or,xor,and} Peter Zijlstra <peterz@infradead.org> - 2015-07-16 19:50 +0200
[PATCH 11/28] m68k: Provide atomic_{or,xor,and} Peter Zijlstra <peterz@infradead.org> - 2015-07-16 19:50 +0200
[PATCH 17/28] sh: Provide atomic_{or,xor,and} Peter Zijlstra <peterz@infradead.org> - 2015-07-16 19:50 +0200
[PATCH 24/28] tile: Provide atomic_{or,xor,and} Peter Zijlstra <peterz@infradead.org> - 2015-07-16 19:50 +0200
Re: [PATCH 00/28] arch: Provide atomic logic ops Will Deacon <will.deacon@arm.com> - 2015-07-17 15:00 +0200
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