151 lines
4.1 KiB
C
151 lines
4.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright IBM Corp. 1999, 2016
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* Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>,
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* Denis Joseph Barrow,
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* Arnd Bergmann,
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*/
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#ifndef __ARCH_S390_ATOMIC__
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#define __ARCH_S390_ATOMIC__
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#include <linux/compiler.h>
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#include <linux/types.h>
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#include <asm/atomic_ops.h>
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#include <asm/barrier.h>
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#include <asm/cmpxchg.h>
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static inline int arch_atomic_read(const atomic_t *v)
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{
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return __atomic_read(v);
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}
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#define arch_atomic_read arch_atomic_read
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static inline void arch_atomic_set(atomic_t *v, int i)
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{
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__atomic_set(v, i);
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}
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#define arch_atomic_set arch_atomic_set
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static inline int arch_atomic_add_return(int i, atomic_t *v)
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{
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return __atomic_add_barrier(i, &v->counter) + i;
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}
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#define arch_atomic_add_return arch_atomic_add_return
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static inline int arch_atomic_fetch_add(int i, atomic_t *v)
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{
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return __atomic_add_barrier(i, &v->counter);
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}
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#define arch_atomic_fetch_add arch_atomic_fetch_add
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static inline void arch_atomic_add(int i, atomic_t *v)
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{
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__atomic_add(i, &v->counter);
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}
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#define arch_atomic_add arch_atomic_add
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#define arch_atomic_sub(_i, _v) arch_atomic_add(-(int)(_i), _v)
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#define arch_atomic_sub_return(_i, _v) arch_atomic_add_return(-(int)(_i), _v)
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#define arch_atomic_fetch_sub(_i, _v) arch_atomic_fetch_add(-(int)(_i), _v)
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#define ATOMIC_OPS(op) \
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static inline void arch_atomic_##op(int i, atomic_t *v) \
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{ \
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__atomic_##op(i, &v->counter); \
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} \
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static inline int arch_atomic_fetch_##op(int i, atomic_t *v) \
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{ \
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return __atomic_##op##_barrier(i, &v->counter); \
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}
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ATOMIC_OPS(and)
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ATOMIC_OPS(or)
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ATOMIC_OPS(xor)
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#undef ATOMIC_OPS
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#define arch_atomic_and arch_atomic_and
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#define arch_atomic_or arch_atomic_or
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#define arch_atomic_xor arch_atomic_xor
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#define arch_atomic_fetch_and arch_atomic_fetch_and
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#define arch_atomic_fetch_or arch_atomic_fetch_or
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#define arch_atomic_fetch_xor arch_atomic_fetch_xor
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#define arch_atomic_xchg(v, new) (arch_xchg(&((v)->counter), new))
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static inline int arch_atomic_cmpxchg(atomic_t *v, int old, int new)
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{
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return __atomic_cmpxchg(&v->counter, old, new);
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}
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#define arch_atomic_cmpxchg arch_atomic_cmpxchg
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#define ATOMIC64_INIT(i) { (i) }
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static inline s64 arch_atomic64_read(const atomic64_t *v)
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{
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return __atomic64_read(v);
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}
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#define arch_atomic64_read arch_atomic64_read
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static inline void arch_atomic64_set(atomic64_t *v, s64 i)
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{
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__atomic64_set(v, i);
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}
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#define arch_atomic64_set arch_atomic64_set
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static inline s64 arch_atomic64_add_return(s64 i, atomic64_t *v)
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{
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return __atomic64_add_barrier(i, (long *)&v->counter) + i;
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}
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#define arch_atomic64_add_return arch_atomic64_add_return
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static inline s64 arch_atomic64_fetch_add(s64 i, atomic64_t *v)
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{
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return __atomic64_add_barrier(i, (long *)&v->counter);
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}
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#define arch_atomic64_fetch_add arch_atomic64_fetch_add
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static inline void arch_atomic64_add(s64 i, atomic64_t *v)
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{
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__atomic64_add(i, (long *)&v->counter);
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}
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#define arch_atomic64_add arch_atomic64_add
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#define arch_atomic64_xchg(v, new) (arch_xchg(&((v)->counter), new))
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static inline s64 arch_atomic64_cmpxchg(atomic64_t *v, s64 old, s64 new)
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{
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return __atomic64_cmpxchg((long *)&v->counter, old, new);
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}
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#define arch_atomic64_cmpxchg arch_atomic64_cmpxchg
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#define ATOMIC64_OPS(op) \
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static inline void arch_atomic64_##op(s64 i, atomic64_t *v) \
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{ \
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__atomic64_##op(i, (long *)&v->counter); \
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} \
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static inline long arch_atomic64_fetch_##op(s64 i, atomic64_t *v) \
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{ \
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return __atomic64_##op##_barrier(i, (long *)&v->counter); \
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}
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ATOMIC64_OPS(and)
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ATOMIC64_OPS(or)
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ATOMIC64_OPS(xor)
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#undef ATOMIC64_OPS
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#define arch_atomic64_and arch_atomic64_and
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#define arch_atomic64_or arch_atomic64_or
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#define arch_atomic64_xor arch_atomic64_xor
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#define arch_atomic64_fetch_and arch_atomic64_fetch_and
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#define arch_atomic64_fetch_or arch_atomic64_fetch_or
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#define arch_atomic64_fetch_xor arch_atomic64_fetch_xor
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#define arch_atomic64_sub_return(_i, _v) arch_atomic64_add_return(-(s64)(_i), _v)
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#define arch_atomic64_fetch_sub(_i, _v) arch_atomic64_fetch_add(-(s64)(_i), _v)
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#define arch_atomic64_sub(_i, _v) arch_atomic64_add(-(s64)(_i), _v)
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#endif /* __ARCH_S390_ATOMIC__ */
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