1 /* SPDX-License-Identifier: GPL-2.0 */ 1
2 /*
3 * Copyright IBM Corp. 1999, 2016
4 * Author(s): Martin Schwidefsky <schwidefsky@
5 * Denis Joseph Barrow,
6 * Arnd Bergmann,
7 */
8
9 #ifndef __ARCH_S390_ATOMIC__
10 #define __ARCH_S390_ATOMIC__
11
12 #include <linux/compiler.h>
13 #include <linux/types.h>
14 #include <asm/atomic_ops.h>
15 #include <asm/barrier.h>
16 #include <asm/cmpxchg.h>
17
18 static __always_inline int arch_atomic_read(co
19 {
20 return __atomic_read(v);
21 }
22 #define arch_atomic_read arch_atomic_read
23
24 static __always_inline void arch_atomic_set(at
25 {
26 __atomic_set(v, i);
27 }
28 #define arch_atomic_set arch_atomic_set
29
30 static __always_inline int arch_atomic_add_ret
31 {
32 return __atomic_add_barrier(i, &v->cou
33 }
34 #define arch_atomic_add_return arch_atomic_add
35
36 static __always_inline int arch_atomic_fetch_a
37 {
38 return __atomic_add_barrier(i, &v->cou
39 }
40 #define arch_atomic_fetch_add arch_atomic_fetc
41
42 static __always_inline void arch_atomic_add(in
43 {
44 __atomic_add(i, &v->counter);
45 }
46 #define arch_atomic_add arch_atomic_add
47
48 #define arch_atomic_sub(_i, _v) arch_a
49 #define arch_atomic_sub_return(_i, _v) arch_a
50 #define arch_atomic_fetch_sub(_i, _v) arch_a
51
52 #define ATOMIC_OPS(op)
53 static __always_inline void arch_atomic_##op(i
54 {
55 __atomic_##op(i, &v->counter);
56 }
57 static __always_inline int arch_atomic_fetch_#
58 {
59 return __atomic_##op##_barrier(i, &v->
60 }
61
62 ATOMIC_OPS(and)
63 ATOMIC_OPS(or)
64 ATOMIC_OPS(xor)
65
66 #undef ATOMIC_OPS
67
68 #define arch_atomic_and arch_a
69 #define arch_atomic_or arch_a
70 #define arch_atomic_xor arch_a
71 #define arch_atomic_fetch_and arch_a
72 #define arch_atomic_fetch_or arch_a
73 #define arch_atomic_fetch_xor arch_a
74
75 #define arch_atomic_xchg(v, new) (arch_
76
77 static __always_inline int arch_atomic_cmpxchg
78 {
79 return __atomic_cmpxchg(&v->counter, o
80 }
81 #define arch_atomic_cmpxchg arch_atomic_cmpxch
82
83 #define ATOMIC64_INIT(i) { (i) }
84
85 static __always_inline s64 arch_atomic64_read(
86 {
87 return __atomic64_read(v);
88 }
89 #define arch_atomic64_read arch_atomic64_read
90
91 static __always_inline void arch_atomic64_set(
92 {
93 __atomic64_set(v, i);
94 }
95 #define arch_atomic64_set arch_atomic64_set
96
97 static __always_inline s64 arch_atomic64_add_r
98 {
99 return __atomic64_add_barrier(i, (long
100 }
101 #define arch_atomic64_add_return arch_atomic64
102
103 static __always_inline s64 arch_atomic64_fetch
104 {
105 return __atomic64_add_barrier(i, (long
106 }
107 #define arch_atomic64_fetch_add arch_atomic64_
108
109 static __always_inline void arch_atomic64_add(
110 {
111 __atomic64_add(i, (long *)&v->counter)
112 }
113 #define arch_atomic64_add arch_atomic64_add
114
115 #define arch_atomic64_xchg(v, new) (arch_
116
117 static __always_inline s64 arch_atomic64_cmpxc
118 {
119 return __atomic64_cmpxchg((long *)&v->
120 }
121 #define arch_atomic64_cmpxchg arch_atomic64_cm
122
123 #define ATOMIC64_OPS(op)
124 static __always_inline void arch_atomic64_##op
125 {
126 __atomic64_##op(i, (long *)&v->counter
127 }
128 static __always_inline long arch_atomic64_fetc
129 {
130 return __atomic64_##op##_barrier(i, (l
131 }
132
133 ATOMIC64_OPS(and)
134 ATOMIC64_OPS(or)
135 ATOMIC64_OPS(xor)
136
137 #undef ATOMIC64_OPS
138
139 #define arch_atomic64_and arch_a
140 #define arch_atomic64_or arch_a
141 #define arch_atomic64_xor arch_a
142 #define arch_atomic64_fetch_and arch_a
143 #define arch_atomic64_fetch_or arch_a
144 #define arch_atomic64_fetch_xor arch_a
145
146 #define arch_atomic64_sub_return(_i, _v) arch_
147 #define arch_atomic64_fetch_sub(_i, _v) arch_
148 #define arch_atomic64_sub(_i, _v) arch_
149
150 #endif /* __ARCH_S390_ATOMIC__ */
151
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