/* SPDX-License-Identifier: GPL-2.0 */
/* atomic.h: These still suck, but the I-cache hit rate is higher.
 *
 * Copyright (C) 1996 David S. Miller ([email protected])
 * Copyright (C) 2000 Anton Blanchard ([email protected])
 * Copyright (C) 2007 Kyle McMartin ([email protected])
 *
 * Additions by Keith M Wesolowski ([email protected]) based
 * on asm-parisc/atomic.h Copyright (C) 2000 Philipp Rumpf <[email protected]>.
 */

#ifndef __ARCH_SPARC_ATOMIC__
#define __ARCH_SPARC_ATOMIC__

#include <linux/types.h>

#include <asm/cmpxchg.h>
#include <asm/barrier.h>
#include <asm-generic/atomic64.h>

int arch_atomic_add_return(int, atomic_t *);
#define arch_atomic_add_return arch_atomic_add_return

int arch_atomic_fetch_add(int, atomic_t *);
#define arch_atomic_fetch_add arch_atomic_fetch_add

int arch_atomic_fetch_and(int, atomic_t *);
#define arch_atomic_fetch_and arch_atomic_fetch_and

int arch_atomic_fetch_or(int, atomic_t *);
#define arch_atomic_fetch_or arch_atomic_fetch_or

int arch_atomic_fetch_xor(int, atomic_t *);
#define arch_atomic_fetch_xor arch_atomic_fetch_xor

int arch_atomic_cmpxchg(atomic_t *, int, int);
#define arch_atomic_cmpxchg arch_atomic_cmpxchg

int arch_atomic_xchg(atomic_t *, int);
#define arch_atomic_xchg arch_atomic_xchg

int arch_atomic_fetch_add_unless(atomic_t *, int, int);
#define arch_atomic_fetch_add_unless arch_atomic_fetch_add_unless

void arch_atomic_set(atomic_t *, int);

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

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

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

#define arch_atomic_and(i, v)    ((void)arch_atomic_fetch_and((i), (v)))
#define arch_atomic_or(i, v)    ((void)arch_atomic_fetch_or((i), (v)))
#define arch_atomic_xor(i, v)    ((void)arch_atomic_fetch_xor((i), (v)))

#define arch_atomic_sub_return(i, v)    (arch_atomic_add_return(-(int)(i), (v)))
#define arch_atomic_fetch_sub(i, v)    (arch_atomic_fetch_add (-(int)(i), (v)))

#endif /* !(__ARCH_SPARC_ATOMIC__) */