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8#ifndef __ARCH_SPARC64_ATOMIC__
9#define __ARCH_SPARC64_ATOMIC__
10
11#include <linux/types.h>
12#include <asm/cmpxchg.h>
13#include <asm/barrier.h>
14
15#define ATOMIC_INIT(i) { (i) }
16#define ATOMIC64_INIT(i) { (i) }
17
18#define atomic_read(v) READ_ONCE((v)->counter)
19#define atomic64_read(v) READ_ONCE((v)->counter)
20
21#define atomic_set(v, i) WRITE_ONCE(((v)->counter), (i))
22#define atomic64_set(v, i) WRITE_ONCE(((v)->counter), (i))
23
24#define ATOMIC_OP(op) \
25void atomic_##op(int, atomic_t *); \
26void atomic64_##op(s64, atomic64_t *);
27
28#define ATOMIC_OP_RETURN(op) \
29int atomic_##op##_return(int, atomic_t *); \
30s64 atomic64_##op##_return(s64, atomic64_t *);
31
32#define ATOMIC_FETCH_OP(op) \
33int atomic_fetch_##op(int, atomic_t *); \
34s64 atomic64_fetch_##op(s64, atomic64_t *);
35
36#define ATOMIC_OPS(op) ATOMIC_OP(op) ATOMIC_OP_RETURN(op) ATOMIC_FETCH_OP(op)
37
38ATOMIC_OPS(add)
39ATOMIC_OPS(sub)
40
41#undef ATOMIC_OPS
42#define ATOMIC_OPS(op) ATOMIC_OP(op) ATOMIC_FETCH_OP(op)
43
44ATOMIC_OPS(and)
45ATOMIC_OPS(or)
46ATOMIC_OPS(xor)
47
48#undef ATOMIC_OPS
49#undef ATOMIC_FETCH_OP
50#undef ATOMIC_OP_RETURN
51#undef ATOMIC_OP
52
53#define atomic_cmpxchg(v, o, n) (cmpxchg(&((v)->counter), (o), (n)))
54
55static inline int atomic_xchg(atomic_t *v, int new)
56{
57 return xchg(&v->counter, new);
58}
59
60#define atomic64_cmpxchg(v, o, n) \
61 ((__typeof__((v)->counter))cmpxchg(&((v)->counter), (o), (n)))
62#define atomic64_xchg(v, new) (xchg(&((v)->counter), new))
63
64s64 atomic64_dec_if_positive(atomic64_t *v);
65#define atomic64_dec_if_positive atomic64_dec_if_positive
66
67#endif
68