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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/arch/sparc/include/asm/atomic_64.h
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/* SPDX-License-Identifier: GPL-2.0 */

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/* atomic.h: Thankfully the V9 is at least reasonable for this

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 *           stuff.

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 *

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 * Copyright (C) 1996, 1997, 2000, 2012 David S. Miller ([email protected])

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 */

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#ifndef __ARCH_SPARC64_ATOMIC__

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#define __ARCH_SPARC64_ATOMIC__

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#include <linux/types.h>

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#include <asm/cmpxchg.h>

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#include <asm/barrier.h>

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#define ATOMIC64_INIT(i)	{ (i) }

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#define arch_atomic_read(v)	READ_ONCE((v)->counter)

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#define arch_atomic64_read(v)	READ_ONCE((v)->counter)

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#define arch_atomic_set(v, i)	WRITE_ONCE(((v)->counter), (i))

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#define arch_atomic64_set(v, i)	WRITE_ONCE(((v)->counter), (i))

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#define ATOMIC_OP(op)							\

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void arch_atomic_##op(int, atomic_t *);					\

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void arch_atomic64_##op(s64, atomic64_t *);

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#define ATOMIC_OP_RETURN(op)						\

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int arch_atomic_##op##_return(int, atomic_t *);				\

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s64 arch_atomic64_##op##_return(s64, atomic64_t *);

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#define ATOMIC_FETCH_OP(op)						\

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int arch_atomic_fetch_##op(int, atomic_t *);				\

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s64 arch_atomic64_fetch_##op(s64, atomic64_t *);

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#define ATOMIC_OPS(op) ATOMIC_OP(op) ATOMIC_OP_RETURN(op) ATOMIC_FETCH_OP(op)

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ATOMIC_OPS(add)

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ATOMIC_OPS(sub)

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#define arch_atomic_add_return			arch_atomic_add_return

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#define arch_atomic_sub_return			arch_atomic_sub_return

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#define arch_atomic_fetch_add			arch_atomic_fetch_add

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#define arch_atomic_fetch_sub			arch_atomic_fetch_sub

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#define arch_atomic64_add_return		arch_atomic64_add_return

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#define arch_atomic64_sub_return		arch_atomic64_sub_return

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#define arch_atomic64_fetch_add			arch_atomic64_fetch_add

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#define arch_atomic64_fetch_sub			arch_atomic64_fetch_sub

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#undef ATOMIC_OPS

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#define ATOMIC_OPS(op) ATOMIC_OP(op) ATOMIC_FETCH_OP(op)

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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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#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_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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#undef ATOMIC_OPS

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#undef ATOMIC_FETCH_OP

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#undef ATOMIC_OP_RETURN

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#undef ATOMIC_OP

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s64 arch_atomic64_dec_if_positive(atomic64_t *v);

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#define arch_atomic64_dec_if_positive arch_atomic64_dec_if_positive

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#endif /* !(__ARCH_SPARC64_ATOMIC__) */

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