2023-08-30 17:31:07 +02:00
|
|
|
/* SPDX-License-Identifier: GPL-2.0 */
|
|
|
|
|
/* atomic.h: Thankfully the V9 is at least reasonable for this
|
|
|
|
|
* stuff.
|
|
|
|
|
*
|
|
|
|
|
* Copyright (C) 1996, 1997, 2000, 2012 David S. Miller (davem@redhat.com)
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#ifndef __ARCH_SPARC64_ATOMIC__
|
|
|
|
|
#define __ARCH_SPARC64_ATOMIC__
|
|
|
|
|
|
|
|
|
|
#include <linux/types.h>
|
|
|
|
|
#include <asm/cmpxchg.h>
|
|
|
|
|
#include <asm/barrier.h>
|
|
|
|
|
|
|
|
|
|
#define ATOMIC64_INIT(i) { (i) }
|
|
|
|
|
|
|
|
|
|
#define arch_atomic_read(v) READ_ONCE((v)->counter)
|
|
|
|
|
#define arch_atomic64_read(v) READ_ONCE((v)->counter)
|
|
|
|
|
|
|
|
|
|
#define arch_atomic_set(v, i) WRITE_ONCE(((v)->counter), (i))
|
|
|
|
|
#define arch_atomic64_set(v, i) WRITE_ONCE(((v)->counter), (i))
|
|
|
|
|
|
|
|
|
|
#define ATOMIC_OP(op) \
|
|
|
|
|
void arch_atomic_##op(int, atomic_t *); \
|
|
|
|
|
void arch_atomic64_##op(s64, atomic64_t *);
|
|
|
|
|
|
|
|
|
|
#define ATOMIC_OP_RETURN(op) \
|
|
|
|
|
int arch_atomic_##op##_return(int, atomic_t *); \
|
|
|
|
|
s64 arch_atomic64_##op##_return(s64, atomic64_t *);
|
|
|
|
|
|
|
|
|
|
#define ATOMIC_FETCH_OP(op) \
|
|
|
|
|
int arch_atomic_fetch_##op(int, atomic_t *); \
|
|
|
|
|
s64 arch_atomic64_fetch_##op(s64, atomic64_t *);
|
|
|
|
|
|
|
|
|
|
#define ATOMIC_OPS(op) ATOMIC_OP(op) ATOMIC_OP_RETURN(op) ATOMIC_FETCH_OP(op)
|
|
|
|
|
|
|
|
|
|
ATOMIC_OPS(add)
|
|
|
|
|
ATOMIC_OPS(sub)
|
|
|
|
|
|
2023-10-24 12:59:35 +02:00
|
|
|
#define arch_atomic_add_return arch_atomic_add_return
|
|
|
|
|
#define arch_atomic_sub_return arch_atomic_sub_return
|
|
|
|
|
#define arch_atomic_fetch_add arch_atomic_fetch_add
|
|
|
|
|
#define arch_atomic_fetch_sub arch_atomic_fetch_sub
|
|
|
|
|
|
|
|
|
|
#define arch_atomic64_add_return arch_atomic64_add_return
|
|
|
|
|
#define arch_atomic64_sub_return arch_atomic64_sub_return
|
|
|
|
|
#define arch_atomic64_fetch_add arch_atomic64_fetch_add
|
|
|
|
|
#define arch_atomic64_fetch_sub arch_atomic64_fetch_sub
|
|
|
|
|
|
2023-08-30 17:31:07 +02:00
|
|
|
#undef ATOMIC_OPS
|
|
|
|
|
#define ATOMIC_OPS(op) ATOMIC_OP(op) ATOMIC_FETCH_OP(op)
|
|
|
|
|
|
|
|
|
|
ATOMIC_OPS(and)
|
|
|
|
|
ATOMIC_OPS(or)
|
|
|
|
|
ATOMIC_OPS(xor)
|
|
|
|
|
|
2023-10-24 12:59:35 +02:00
|
|
|
#define arch_atomic_fetch_and arch_atomic_fetch_and
|
|
|
|
|
#define arch_atomic_fetch_or arch_atomic_fetch_or
|
|
|
|
|
#define arch_atomic_fetch_xor arch_atomic_fetch_xor
|
|
|
|
|
|
|
|
|
|
#define arch_atomic64_fetch_and arch_atomic64_fetch_and
|
|
|
|
|
#define arch_atomic64_fetch_or arch_atomic64_fetch_or
|
|
|
|
|
#define arch_atomic64_fetch_xor arch_atomic64_fetch_xor
|
|
|
|
|
|
2023-08-30 17:31:07 +02:00
|
|
|
#undef ATOMIC_OPS
|
|
|
|
|
#undef ATOMIC_FETCH_OP
|
|
|
|
|
#undef ATOMIC_OP_RETURN
|
|
|
|
|
#undef ATOMIC_OP
|
|
|
|
|
|
|
|
|
|
s64 arch_atomic64_dec_if_positive(atomic64_t *v);
|
|
|
|
|
#define arch_atomic64_dec_if_positive arch_atomic64_dec_if_positive
|
|
|
|
|
|
|
|
|
|
#endif /* !(__ARCH_SPARC64_ATOMIC__) */
|
