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1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Based on arch/arm/include/asm/atomic.h
4 *
5 * Copyright (C) 1996 Russell King.
6 * Copyright (C) 2002 Deep Blue Solutions Ltd.
7 * Copyright (C) 2012 ARM Ltd.
8 */
9#ifndef __ASM_ATOMIC_H
10#define __ASM_ATOMIC_H
11
12#include <linux/compiler.h>
13#include <linux/types.h>
14
15#include <asm/barrier.h>
16#include <asm/cmpxchg.h>
17#include <asm/lse.h>
18
19#define ATOMIC_OP(op) \
20static inline void arch_##op(int i, atomic_t *v) \
21{ \
22 __lse_ll_sc_body(op, i, v); \
23}
24
25ATOMIC_OP(atomic_andnot)
26ATOMIC_OP(atomic_or)
27ATOMIC_OP(atomic_xor)
28ATOMIC_OP(atomic_add)
29ATOMIC_OP(atomic_and)
30ATOMIC_OP(atomic_sub)
31
32#undef ATOMIC_OP
33
34#define ATOMIC_FETCH_OP(name, op) \
35static inline int arch_##op##name(int i, atomic_t *v) \
36{ \
37 return __lse_ll_sc_body(op##name, i, v); \
38}
39
40#define ATOMIC_FETCH_OPS(op) \
41 ATOMIC_FETCH_OP(_relaxed, op) \
42 ATOMIC_FETCH_OP(_acquire, op) \
43 ATOMIC_FETCH_OP(_release, op) \
44 ATOMIC_FETCH_OP( , op)
45
46ATOMIC_FETCH_OPS(atomic_fetch_andnot)
47ATOMIC_FETCH_OPS(atomic_fetch_or)
48ATOMIC_FETCH_OPS(atomic_fetch_xor)
49ATOMIC_FETCH_OPS(atomic_fetch_add)
50ATOMIC_FETCH_OPS(atomic_fetch_and)
51ATOMIC_FETCH_OPS(atomic_fetch_sub)
52ATOMIC_FETCH_OPS(atomic_add_return)
53ATOMIC_FETCH_OPS(atomic_sub_return)
54
55#undef ATOMIC_FETCH_OP
56#undef ATOMIC_FETCH_OPS
57
58#define ATOMIC64_OP(op) \
59static inline void arch_##op(long i, atomic64_t *v) \
60{ \
61 __lse_ll_sc_body(op, i, v); \
62}
63
64ATOMIC64_OP(atomic64_andnot)
65ATOMIC64_OP(atomic64_or)
66ATOMIC64_OP(atomic64_xor)
67ATOMIC64_OP(atomic64_add)
68ATOMIC64_OP(atomic64_and)
69ATOMIC64_OP(atomic64_sub)
70
71#undef ATOMIC64_OP
72
73#define ATOMIC64_FETCH_OP(name, op) \
74static inline long arch_##op##name(long i, atomic64_t *v) \
75{ \
76 return __lse_ll_sc_body(op##name, i, v); \
77}
78
79#define ATOMIC64_FETCH_OPS(op) \
80 ATOMIC64_FETCH_OP(_relaxed, op) \
81 ATOMIC64_FETCH_OP(_acquire, op) \
82 ATOMIC64_FETCH_OP(_release, op) \
83 ATOMIC64_FETCH_OP( , op)
84
85ATOMIC64_FETCH_OPS(atomic64_fetch_andnot)
86ATOMIC64_FETCH_OPS(atomic64_fetch_or)
87ATOMIC64_FETCH_OPS(atomic64_fetch_xor)
88ATOMIC64_FETCH_OPS(atomic64_fetch_add)
89ATOMIC64_FETCH_OPS(atomic64_fetch_and)
90ATOMIC64_FETCH_OPS(atomic64_fetch_sub)
91ATOMIC64_FETCH_OPS(atomic64_add_return)
92ATOMIC64_FETCH_OPS(atomic64_sub_return)
93
94#undef ATOMIC64_FETCH_OP
95#undef ATOMIC64_FETCH_OPS
96
97static inline long arch_atomic64_dec_if_positive(atomic64_t *v)
98{
99 return __lse_ll_sc_body(atomic64_dec_if_positive, v);
100}
101
102#define ATOMIC_INIT(i) { (i) }
103
104#define arch_atomic_read(v) READ_ONCE((v)->counter)
105#define arch_atomic_set(v, i) WRITE_ONCE(((v)->counter), (i))
106
107#define arch_atomic_add_return_relaxed arch_atomic_add_return_relaxed
108#define arch_atomic_add_return_acquire arch_atomic_add_return_acquire
109#define arch_atomic_add_return_release arch_atomic_add_return_release
110#define arch_atomic_add_return arch_atomic_add_return
111
112#define arch_atomic_sub_return_relaxed arch_atomic_sub_return_relaxed
113#define arch_atomic_sub_return_acquire arch_atomic_sub_return_acquire
114#define arch_atomic_sub_return_release arch_atomic_sub_return_release
115#define arch_atomic_sub_return arch_atomic_sub_return
116
117#define arch_atomic_fetch_add_relaxed arch_atomic_fetch_add_relaxed
118#define arch_atomic_fetch_add_acquire arch_atomic_fetch_add_acquire
119#define arch_atomic_fetch_add_release arch_atomic_fetch_add_release
120#define arch_atomic_fetch_add arch_atomic_fetch_add
121
122#define arch_atomic_fetch_sub_relaxed arch_atomic_fetch_sub_relaxed
123#define arch_atomic_fetch_sub_acquire arch_atomic_fetch_sub_acquire
124#define arch_atomic_fetch_sub_release arch_atomic_fetch_sub_release
125#define arch_atomic_fetch_sub arch_atomic_fetch_sub
126
127#define arch_atomic_fetch_and_relaxed arch_atomic_fetch_and_relaxed
128#define arch_atomic_fetch_and_acquire arch_atomic_fetch_and_acquire
129#define arch_atomic_fetch_and_release arch_atomic_fetch_and_release
130#define arch_atomic_fetch_and arch_atomic_fetch_and
131
132#define arch_atomic_fetch_andnot_relaxed arch_atomic_fetch_andnot_relaxed
133#define arch_atomic_fetch_andnot_acquire arch_atomic_fetch_andnot_acquire
134#define arch_atomic_fetch_andnot_release arch_atomic_fetch_andnot_release
135#define arch_atomic_fetch_andnot arch_atomic_fetch_andnot
136
137#define arch_atomic_fetch_or_relaxed arch_atomic_fetch_or_relaxed
138#define arch_atomic_fetch_or_acquire arch_atomic_fetch_or_acquire
139#define arch_atomic_fetch_or_release arch_atomic_fetch_or_release
140#define arch_atomic_fetch_or arch_atomic_fetch_or
141
142#define arch_atomic_fetch_xor_relaxed arch_atomic_fetch_xor_relaxed
143#define arch_atomic_fetch_xor_acquire arch_atomic_fetch_xor_acquire
144#define arch_atomic_fetch_xor_release arch_atomic_fetch_xor_release
145#define arch_atomic_fetch_xor arch_atomic_fetch_xor
146
147#define arch_atomic_xchg_relaxed(v, new) \
148 arch_xchg_relaxed(&((v)->counter), (new))
149#define arch_atomic_xchg_acquire(v, new) \
150 arch_xchg_acquire(&((v)->counter), (new))
151#define arch_atomic_xchg_release(v, new) \
152 arch_xchg_release(&((v)->counter), (new))
153#define arch_atomic_xchg(v, new) \
154 arch_xchg(&((v)->counter), (new))
155
156#define arch_atomic_cmpxchg_relaxed(v, old, new) \
157 arch_cmpxchg_relaxed(&((v)->counter), (old), (new))
158#define arch_atomic_cmpxchg_acquire(v, old, new) \
159 arch_cmpxchg_acquire(&((v)->counter), (old), (new))
160#define arch_atomic_cmpxchg_release(v, old, new) \
161 arch_cmpxchg_release(&((v)->counter), (old), (new))
162#define arch_atomic_cmpxchg(v, old, new) \
163 arch_cmpxchg(&((v)->counter), (old), (new))
164
165#define arch_atomic_andnot arch_atomic_andnot
166
167/*
168 * 64-bit arch_atomic operations.
169 */
170#define ATOMIC64_INIT ATOMIC_INIT
171#define arch_atomic64_read arch_atomic_read
172#define arch_atomic64_set arch_atomic_set
173
174#define arch_atomic64_add_return_relaxed arch_atomic64_add_return_relaxed
175#define arch_atomic64_add_return_acquire arch_atomic64_add_return_acquire
176#define arch_atomic64_add_return_release arch_atomic64_add_return_release
177#define arch_atomic64_add_return arch_atomic64_add_return
178
179#define arch_atomic64_sub_return_relaxed arch_atomic64_sub_return_relaxed
180#define arch_atomic64_sub_return_acquire arch_atomic64_sub_return_acquire
181#define arch_atomic64_sub_return_release arch_atomic64_sub_return_release
182#define arch_atomic64_sub_return arch_atomic64_sub_return
183
184#define arch_atomic64_fetch_add_relaxed arch_atomic64_fetch_add_relaxed
185#define arch_atomic64_fetch_add_acquire arch_atomic64_fetch_add_acquire
186#define arch_atomic64_fetch_add_release arch_atomic64_fetch_add_release
187#define arch_atomic64_fetch_add arch_atomic64_fetch_add
188
189#define arch_atomic64_fetch_sub_relaxed arch_atomic64_fetch_sub_relaxed
190#define arch_atomic64_fetch_sub_acquire arch_atomic64_fetch_sub_acquire
191#define arch_atomic64_fetch_sub_release arch_atomic64_fetch_sub_release
192#define arch_atomic64_fetch_sub arch_atomic64_fetch_sub
193
194#define arch_atomic64_fetch_and_relaxed arch_atomic64_fetch_and_relaxed
195#define arch_atomic64_fetch_and_acquire arch_atomic64_fetch_and_acquire
196#define arch_atomic64_fetch_and_release arch_atomic64_fetch_and_release
197#define arch_atomic64_fetch_and arch_atomic64_fetch_and
198
199#define arch_atomic64_fetch_andnot_relaxed arch_atomic64_fetch_andnot_relaxed
200#define arch_atomic64_fetch_andnot_acquire arch_atomic64_fetch_andnot_acquire
201#define arch_atomic64_fetch_andnot_release arch_atomic64_fetch_andnot_release
202#define arch_atomic64_fetch_andnot arch_atomic64_fetch_andnot
203
204#define arch_atomic64_fetch_or_relaxed arch_atomic64_fetch_or_relaxed
205#define arch_atomic64_fetch_or_acquire arch_atomic64_fetch_or_acquire
206#define arch_atomic64_fetch_or_release arch_atomic64_fetch_or_release
207#define arch_atomic64_fetch_or arch_atomic64_fetch_or
208
209#define arch_atomic64_fetch_xor_relaxed arch_atomic64_fetch_xor_relaxed
210#define arch_atomic64_fetch_xor_acquire arch_atomic64_fetch_xor_acquire
211#define arch_atomic64_fetch_xor_release arch_atomic64_fetch_xor_release
212#define arch_atomic64_fetch_xor arch_atomic64_fetch_xor
213
214#define arch_atomic64_xchg_relaxed arch_atomic_xchg_relaxed
215#define arch_atomic64_xchg_acquire arch_atomic_xchg_acquire
216#define arch_atomic64_xchg_release arch_atomic_xchg_release
217#define arch_atomic64_xchg arch_atomic_xchg
218
219#define arch_atomic64_cmpxchg_relaxed arch_atomic_cmpxchg_relaxed
220#define arch_atomic64_cmpxchg_acquire arch_atomic_cmpxchg_acquire
221#define arch_atomic64_cmpxchg_release arch_atomic_cmpxchg_release
222#define arch_atomic64_cmpxchg arch_atomic_cmpxchg
223
224#define arch_atomic64_andnot arch_atomic64_andnot
225
226#define arch_atomic64_dec_if_positive arch_atomic64_dec_if_positive
227
228#include <asm-generic/atomic-instrumented.h>
229
230#endif /* __ASM_ATOMIC_H */
1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Based on arch/arm/include/asm/atomic.h
4 *
5 * Copyright (C) 1996 Russell King.
6 * Copyright (C) 2002 Deep Blue Solutions Ltd.
7 * Copyright (C) 2012 ARM Ltd.
8 */
9#ifndef __ASM_ATOMIC_H
10#define __ASM_ATOMIC_H
11
12#include <linux/compiler.h>
13#include <linux/types.h>
14
15#include <asm/barrier.h>
16#include <asm/cmpxchg.h>
17#include <asm/lse.h>
18
19#define ATOMIC_OP(op) \
20static __always_inline void arch_##op(int i, atomic_t *v) \
21{ \
22 __lse_ll_sc_body(op, i, v); \
23}
24
25ATOMIC_OP(atomic_andnot)
26ATOMIC_OP(atomic_or)
27ATOMIC_OP(atomic_xor)
28ATOMIC_OP(atomic_add)
29ATOMIC_OP(atomic_and)
30ATOMIC_OP(atomic_sub)
31
32#undef ATOMIC_OP
33
34#define ATOMIC_FETCH_OP(name, op) \
35static __always_inline int arch_##op##name(int i, atomic_t *v) \
36{ \
37 return __lse_ll_sc_body(op##name, i, v); \
38}
39
40#define ATOMIC_FETCH_OPS(op) \
41 ATOMIC_FETCH_OP(_relaxed, op) \
42 ATOMIC_FETCH_OP(_acquire, op) \
43 ATOMIC_FETCH_OP(_release, op) \
44 ATOMIC_FETCH_OP( , op)
45
46ATOMIC_FETCH_OPS(atomic_fetch_andnot)
47ATOMIC_FETCH_OPS(atomic_fetch_or)
48ATOMIC_FETCH_OPS(atomic_fetch_xor)
49ATOMIC_FETCH_OPS(atomic_fetch_add)
50ATOMIC_FETCH_OPS(atomic_fetch_and)
51ATOMIC_FETCH_OPS(atomic_fetch_sub)
52ATOMIC_FETCH_OPS(atomic_add_return)
53ATOMIC_FETCH_OPS(atomic_sub_return)
54
55#undef ATOMIC_FETCH_OP
56#undef ATOMIC_FETCH_OPS
57
58#define ATOMIC64_OP(op) \
59static __always_inline void arch_##op(long i, atomic64_t *v) \
60{ \
61 __lse_ll_sc_body(op, i, v); \
62}
63
64ATOMIC64_OP(atomic64_andnot)
65ATOMIC64_OP(atomic64_or)
66ATOMIC64_OP(atomic64_xor)
67ATOMIC64_OP(atomic64_add)
68ATOMIC64_OP(atomic64_and)
69ATOMIC64_OP(atomic64_sub)
70
71#undef ATOMIC64_OP
72
73#define ATOMIC64_FETCH_OP(name, op) \
74static __always_inline long arch_##op##name(long i, atomic64_t *v) \
75{ \
76 return __lse_ll_sc_body(op##name, i, v); \
77}
78
79#define ATOMIC64_FETCH_OPS(op) \
80 ATOMIC64_FETCH_OP(_relaxed, op) \
81 ATOMIC64_FETCH_OP(_acquire, op) \
82 ATOMIC64_FETCH_OP(_release, op) \
83 ATOMIC64_FETCH_OP( , op)
84
85ATOMIC64_FETCH_OPS(atomic64_fetch_andnot)
86ATOMIC64_FETCH_OPS(atomic64_fetch_or)
87ATOMIC64_FETCH_OPS(atomic64_fetch_xor)
88ATOMIC64_FETCH_OPS(atomic64_fetch_add)
89ATOMIC64_FETCH_OPS(atomic64_fetch_and)
90ATOMIC64_FETCH_OPS(atomic64_fetch_sub)
91ATOMIC64_FETCH_OPS(atomic64_add_return)
92ATOMIC64_FETCH_OPS(atomic64_sub_return)
93
94#undef ATOMIC64_FETCH_OP
95#undef ATOMIC64_FETCH_OPS
96
97static __always_inline long arch_atomic64_dec_if_positive(atomic64_t *v)
98{
99 return __lse_ll_sc_body(atomic64_dec_if_positive, v);
100}
101
102#define arch_atomic_read(v) __READ_ONCE((v)->counter)
103#define arch_atomic_set(v, i) __WRITE_ONCE(((v)->counter), (i))
104
105#define arch_atomic_add_return_relaxed arch_atomic_add_return_relaxed
106#define arch_atomic_add_return_acquire arch_atomic_add_return_acquire
107#define arch_atomic_add_return_release arch_atomic_add_return_release
108#define arch_atomic_add_return arch_atomic_add_return
109
110#define arch_atomic_sub_return_relaxed arch_atomic_sub_return_relaxed
111#define arch_atomic_sub_return_acquire arch_atomic_sub_return_acquire
112#define arch_atomic_sub_return_release arch_atomic_sub_return_release
113#define arch_atomic_sub_return arch_atomic_sub_return
114
115#define arch_atomic_fetch_add_relaxed arch_atomic_fetch_add_relaxed
116#define arch_atomic_fetch_add_acquire arch_atomic_fetch_add_acquire
117#define arch_atomic_fetch_add_release arch_atomic_fetch_add_release
118#define arch_atomic_fetch_add arch_atomic_fetch_add
119
120#define arch_atomic_fetch_sub_relaxed arch_atomic_fetch_sub_relaxed
121#define arch_atomic_fetch_sub_acquire arch_atomic_fetch_sub_acquire
122#define arch_atomic_fetch_sub_release arch_atomic_fetch_sub_release
123#define arch_atomic_fetch_sub arch_atomic_fetch_sub
124
125#define arch_atomic_fetch_and_relaxed arch_atomic_fetch_and_relaxed
126#define arch_atomic_fetch_and_acquire arch_atomic_fetch_and_acquire
127#define arch_atomic_fetch_and_release arch_atomic_fetch_and_release
128#define arch_atomic_fetch_and arch_atomic_fetch_and
129
130#define arch_atomic_fetch_andnot_relaxed arch_atomic_fetch_andnot_relaxed
131#define arch_atomic_fetch_andnot_acquire arch_atomic_fetch_andnot_acquire
132#define arch_atomic_fetch_andnot_release arch_atomic_fetch_andnot_release
133#define arch_atomic_fetch_andnot arch_atomic_fetch_andnot
134
135#define arch_atomic_fetch_or_relaxed arch_atomic_fetch_or_relaxed
136#define arch_atomic_fetch_or_acquire arch_atomic_fetch_or_acquire
137#define arch_atomic_fetch_or_release arch_atomic_fetch_or_release
138#define arch_atomic_fetch_or arch_atomic_fetch_or
139
140#define arch_atomic_fetch_xor_relaxed arch_atomic_fetch_xor_relaxed
141#define arch_atomic_fetch_xor_acquire arch_atomic_fetch_xor_acquire
142#define arch_atomic_fetch_xor_release arch_atomic_fetch_xor_release
143#define arch_atomic_fetch_xor arch_atomic_fetch_xor
144
145#define arch_atomic_andnot arch_atomic_andnot
146
147/*
148 * 64-bit arch_atomic operations.
149 */
150#define ATOMIC64_INIT ATOMIC_INIT
151#define arch_atomic64_read arch_atomic_read
152#define arch_atomic64_set arch_atomic_set
153
154#define arch_atomic64_add_return_relaxed arch_atomic64_add_return_relaxed
155#define arch_atomic64_add_return_acquire arch_atomic64_add_return_acquire
156#define arch_atomic64_add_return_release arch_atomic64_add_return_release
157#define arch_atomic64_add_return arch_atomic64_add_return
158
159#define arch_atomic64_sub_return_relaxed arch_atomic64_sub_return_relaxed
160#define arch_atomic64_sub_return_acquire arch_atomic64_sub_return_acquire
161#define arch_atomic64_sub_return_release arch_atomic64_sub_return_release
162#define arch_atomic64_sub_return arch_atomic64_sub_return
163
164#define arch_atomic64_fetch_add_relaxed arch_atomic64_fetch_add_relaxed
165#define arch_atomic64_fetch_add_acquire arch_atomic64_fetch_add_acquire
166#define arch_atomic64_fetch_add_release arch_atomic64_fetch_add_release
167#define arch_atomic64_fetch_add arch_atomic64_fetch_add
168
169#define arch_atomic64_fetch_sub_relaxed arch_atomic64_fetch_sub_relaxed
170#define arch_atomic64_fetch_sub_acquire arch_atomic64_fetch_sub_acquire
171#define arch_atomic64_fetch_sub_release arch_atomic64_fetch_sub_release
172#define arch_atomic64_fetch_sub arch_atomic64_fetch_sub
173
174#define arch_atomic64_fetch_and_relaxed arch_atomic64_fetch_and_relaxed
175#define arch_atomic64_fetch_and_acquire arch_atomic64_fetch_and_acquire
176#define arch_atomic64_fetch_and_release arch_atomic64_fetch_and_release
177#define arch_atomic64_fetch_and arch_atomic64_fetch_and
178
179#define arch_atomic64_fetch_andnot_relaxed arch_atomic64_fetch_andnot_relaxed
180#define arch_atomic64_fetch_andnot_acquire arch_atomic64_fetch_andnot_acquire
181#define arch_atomic64_fetch_andnot_release arch_atomic64_fetch_andnot_release
182#define arch_atomic64_fetch_andnot arch_atomic64_fetch_andnot
183
184#define arch_atomic64_fetch_or_relaxed arch_atomic64_fetch_or_relaxed
185#define arch_atomic64_fetch_or_acquire arch_atomic64_fetch_or_acquire
186#define arch_atomic64_fetch_or_release arch_atomic64_fetch_or_release
187#define arch_atomic64_fetch_or arch_atomic64_fetch_or
188
189#define arch_atomic64_fetch_xor_relaxed arch_atomic64_fetch_xor_relaxed
190#define arch_atomic64_fetch_xor_acquire arch_atomic64_fetch_xor_acquire
191#define arch_atomic64_fetch_xor_release arch_atomic64_fetch_xor_release
192#define arch_atomic64_fetch_xor arch_atomic64_fetch_xor
193
194#define arch_atomic64_andnot arch_atomic64_andnot
195
196#define arch_atomic64_dec_if_positive arch_atomic64_dec_if_positive
197
198#endif /* __ASM_ATOMIC_H */