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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/arch/sparc/include/asm/atomic_32.h
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/* SPDX-License-Identifier: GPL-2.0 */

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/* atomic.h: These still suck, but the I-cache hit rate is higher.

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 *

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 * Copyright (C) 1996 David S. Miller ([email protected])

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 * Copyright (C) 2000 Anton Blanchard ([email protected])

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 * Copyright (C) 2007 Kyle McMartin ([email protected])

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 *

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 * Additions by Keith M Wesolowski ([email protected]) based

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 * on asm-parisc/atomic.h Copyright (C) 2000 Philipp Rumpf <[email protected]>.

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 */

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#ifndef __ARCH_SPARC_ATOMIC__

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#define __ARCH_SPARC_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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#include <asm-generic/atomic64.h>

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int arch_atomic_add_return(int, atomic_t *);

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#define arch_atomic_add_return arch_atomic_add_return

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int arch_atomic_fetch_add(int, atomic_t *);

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#define arch_atomic_fetch_add arch_atomic_fetch_add

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int arch_atomic_fetch_and(int, atomic_t *);

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#define arch_atomic_fetch_and arch_atomic_fetch_and

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int arch_atomic_fetch_or(int, atomic_t *);

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#define arch_atomic_fetch_or arch_atomic_fetch_or

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int arch_atomic_fetch_xor(int, atomic_t *);

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#define arch_atomic_fetch_xor arch_atomic_fetch_xor

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int arch_atomic_cmpxchg(atomic_t *, int, int);

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#define arch_atomic_cmpxchg arch_atomic_cmpxchg

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int arch_atomic_xchg(atomic_t *, int);

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#define arch_atomic_xchg arch_atomic_xchg

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int arch_atomic_fetch_add_unless(atomic_t *, int, int);

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#define arch_atomic_fetch_add_unless arch_atomic_fetch_add_unless

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void arch_atomic_set(atomic_t *, int);

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#define arch_atomic_set_release(v, i)	arch_atomic_set((v), (i))

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

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#define arch_atomic_add(i, v)	((void)arch_atomic_add_return( (int)(i), (v)))

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#define arch_atomic_sub(i, v)	((void)arch_atomic_add_return(-(int)(i), (v)))

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#define arch_atomic_and(i, v)	((void)arch_atomic_fetch_and((i), (v)))

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#define arch_atomic_or(i, v)	((void)arch_atomic_fetch_or((i), (v)))

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#define arch_atomic_xor(i, v)	((void)arch_atomic_fetch_xor((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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#endif /* !(__ARCH_SPARC_ATOMIC__) */

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