diff options
Diffstat (limited to 'arch/sparc/include/asm/atomic_64.h')
| -rw-r--r-- | arch/sparc/include/asm/atomic_64.h | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/arch/sparc/include/asm/atomic_64.h b/arch/sparc/include/asm/atomic_64.h new file mode 100644 index 000000000..a5e9c3760 --- /dev/null +++ b/arch/sparc/include/asm/atomic_64.h @@ -0,0 +1,73 @@ +/* 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) + +#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 + +#undef ATOMIC_OPS +#define ATOMIC_OPS(op) ATOMIC_OP(op) ATOMIC_FETCH_OP(op) + +ATOMIC_OPS(and) +ATOMIC_OPS(or) +ATOMIC_OPS(xor) + +#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 + +#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__) */ |