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72099ed2 AB |
1 | #ifndef _ASM_GENERIC_ATOMIC_LONG_H |
2 | #define _ASM_GENERIC_ATOMIC_LONG_H | |
d3cb4871 CL |
3 | /* |
4 | * Copyright (C) 2005 Silicon Graphics, Inc. | |
cde53535 | 5 | * Christoph Lameter |
d3cb4871 CL |
6 | * |
7 | * Allows to provide arch independent atomic definitions without the need to | |
8 | * edit all arch specific atomic.h files. | |
9 | */ | |
10 | ||
5998bf1d | 11 | #include <asm/types.h> |
d3cb4871 CL |
12 | |
13 | /* | |
14 | * Suppport for atomic_long_t | |
15 | * | |
16 | * Casts for parameters are avoided for existing atomic functions in order to | |
17 | * avoid issues with cast-as-lval under gcc 4.x and other limitations that the | |
18 | * macros of a platform may have. | |
19 | */ | |
20 | ||
21 | #if BITS_PER_LONG == 64 | |
22 | ||
23 | typedef atomic64_t atomic_long_t; | |
24 | ||
25 | #define ATOMIC_LONG_INIT(i) ATOMIC64_INIT(i) | |
586b610e | 26 | #define ATOMIC_LONG_PFX(x) atomic64 ## x |
d3cb4871 | 27 | |
586b610e | 28 | #else |
d3cb4871 CL |
29 | |
30 | typedef atomic_t atomic_long_t; | |
31 | ||
32 | #define ATOMIC_LONG_INIT(i) ATOMIC_INIT(i) | |
586b610e WD |
33 | #define ATOMIC_LONG_PFX(x) atomic ## x |
34 | ||
35 | #endif | |
36 | ||
6d79ef2d | 37 | #define ATOMIC_LONG_READ_OP(mo) \ |
e3e72ab8 | 38 | static inline long atomic_long_read##mo(const atomic_long_t *l) \ |
6d79ef2d WD |
39 | { \ |
40 | ATOMIC_LONG_PFX(_t) *v = (ATOMIC_LONG_PFX(_t) *)l; \ | |
41 | \ | |
42 | return (long)ATOMIC_LONG_PFX(_read##mo)(v); \ | |
d3cb4871 | 43 | } |
6d79ef2d WD |
44 | ATOMIC_LONG_READ_OP() |
45 | ATOMIC_LONG_READ_OP(_acquire) | |
d3cb4871 | 46 | |
6d79ef2d | 47 | #undef ATOMIC_LONG_READ_OP |
d3cb4871 | 48 | |
6d79ef2d WD |
49 | #define ATOMIC_LONG_SET_OP(mo) \ |
50 | static inline void atomic_long_set##mo(atomic_long_t *l, long i) \ | |
51 | { \ | |
52 | ATOMIC_LONG_PFX(_t) *v = (ATOMIC_LONG_PFX(_t) *)l; \ | |
53 | \ | |
54 | ATOMIC_LONG_PFX(_set##mo)(v, i); \ | |
55 | } | |
56 | ATOMIC_LONG_SET_OP() | |
57 | ATOMIC_LONG_SET_OP(_release) | |
58 | ||
59 | #undef ATOMIC_LONG_SET_OP | |
60 | ||
61 | #define ATOMIC_LONG_ADD_SUB_OP(op, mo) \ | |
62 | static inline long \ | |
63 | atomic_long_##op##_return##mo(long i, atomic_long_t *l) \ | |
64 | { \ | |
65 | ATOMIC_LONG_PFX(_t) *v = (ATOMIC_LONG_PFX(_t) *)l; \ | |
66 | \ | |
67 | return (long)ATOMIC_LONG_PFX(_##op##_return##mo)(i, v); \ | |
d3cb4871 | 68 | } |
6d79ef2d WD |
69 | ATOMIC_LONG_ADD_SUB_OP(add,) |
70 | ATOMIC_LONG_ADD_SUB_OP(add, _relaxed) | |
71 | ATOMIC_LONG_ADD_SUB_OP(add, _acquire) | |
72 | ATOMIC_LONG_ADD_SUB_OP(add, _release) | |
73 | ATOMIC_LONG_ADD_SUB_OP(sub,) | |
74 | ATOMIC_LONG_ADD_SUB_OP(sub, _relaxed) | |
75 | ATOMIC_LONG_ADD_SUB_OP(sub, _acquire) | |
76 | ATOMIC_LONG_ADD_SUB_OP(sub, _release) | |
77 | ||
78 | #undef ATOMIC_LONG_ADD_SUB_OP | |
79 | ||
80 | #define atomic_long_cmpxchg_relaxed(l, old, new) \ | |
81 | (ATOMIC_LONG_PFX(_cmpxchg_relaxed)((ATOMIC_LONG_PFX(_t) *)(l), \ | |
82 | (old), (new))) | |
83 | #define atomic_long_cmpxchg_acquire(l, old, new) \ | |
84 | (ATOMIC_LONG_PFX(_cmpxchg_acquire)((ATOMIC_LONG_PFX(_t) *)(l), \ | |
85 | (old), (new))) | |
86 | #define atomic_long_cmpxchg_release(l, old, new) \ | |
87 | (ATOMIC_LONG_PFX(_cmpxchg_release)((ATOMIC_LONG_PFX(_t) *)(l), \ | |
88 | (old), (new))) | |
89 | #define atomic_long_cmpxchg(l, old, new) \ | |
90 | (ATOMIC_LONG_PFX(_cmpxchg)((ATOMIC_LONG_PFX(_t) *)(l), (old), (new))) | |
91 | ||
92 | #define atomic_long_xchg_relaxed(v, new) \ | |
93 | (ATOMIC_LONG_PFX(_xchg_relaxed)((ATOMIC_LONG_PFX(_t) *)(v), (new))) | |
94 | #define atomic_long_xchg_acquire(v, new) \ | |
95 | (ATOMIC_LONG_PFX(_xchg_acquire)((ATOMIC_LONG_PFX(_t) *)(v), (new))) | |
96 | #define atomic_long_xchg_release(v, new) \ | |
97 | (ATOMIC_LONG_PFX(_xchg_release)((ATOMIC_LONG_PFX(_t) *)(v), (new))) | |
98 | #define atomic_long_xchg(v, new) \ | |
99 | (ATOMIC_LONG_PFX(_xchg)((ATOMIC_LONG_PFX(_t) *)(v), (new))) | |
d3cb4871 | 100 | |
a644fdf0 | 101 | static __always_inline void atomic_long_inc(atomic_long_t *l) |
d3cb4871 | 102 | { |
586b610e | 103 | ATOMIC_LONG_PFX(_t) *v = (ATOMIC_LONG_PFX(_t) *)l; |
d3cb4871 | 104 | |
586b610e | 105 | ATOMIC_LONG_PFX(_inc)(v); |
d3cb4871 CL |
106 | } |
107 | ||
a644fdf0 | 108 | static __always_inline void atomic_long_dec(atomic_long_t *l) |
d3cb4871 | 109 | { |
586b610e | 110 | ATOMIC_LONG_PFX(_t) *v = (ATOMIC_LONG_PFX(_t) *)l; |
d3cb4871 | 111 | |
586b610e | 112 | ATOMIC_LONG_PFX(_dec)(v); |
d3cb4871 CL |
113 | } |
114 | ||
90fe6514 | 115 | #define ATOMIC_LONG_OP(op) \ |
a644fdf0 | 116 | static __always_inline void \ |
90fe6514 PZ |
117 | atomic_long_##op(long i, atomic_long_t *l) \ |
118 | { \ | |
119 | ATOMIC_LONG_PFX(_t) *v = (ATOMIC_LONG_PFX(_t) *)l; \ | |
120 | \ | |
121 | ATOMIC_LONG_PFX(_##op)(i, v); \ | |
d3cb4871 CL |
122 | } |
123 | ||
90fe6514 PZ |
124 | ATOMIC_LONG_OP(add) |
125 | ATOMIC_LONG_OP(sub) | |
126 | ATOMIC_LONG_OP(and) | |
127 | ATOMIC_LONG_OP(or) | |
128 | ATOMIC_LONG_OP(xor) | |
129 | ATOMIC_LONG_OP(andnot) | |
d3cb4871 | 130 | |
90fe6514 | 131 | #undef ATOMIC_LONG_OP |
d3cb4871 | 132 | |
bb2382c3 MD |
133 | static inline int atomic_long_sub_and_test(long i, atomic_long_t *l) |
134 | { | |
586b610e | 135 | ATOMIC_LONG_PFX(_t) *v = (ATOMIC_LONG_PFX(_t) *)l; |
bb2382c3 | 136 | |
586b610e | 137 | return ATOMIC_LONG_PFX(_sub_and_test)(i, v); |
bb2382c3 MD |
138 | } |
139 | ||
140 | static inline int atomic_long_dec_and_test(atomic_long_t *l) | |
141 | { | |
586b610e | 142 | ATOMIC_LONG_PFX(_t) *v = (ATOMIC_LONG_PFX(_t) *)l; |
bb2382c3 | 143 | |
586b610e | 144 | return ATOMIC_LONG_PFX(_dec_and_test)(v); |
bb2382c3 MD |
145 | } |
146 | ||
147 | static inline int atomic_long_inc_and_test(atomic_long_t *l) | |
148 | { | |
586b610e | 149 | ATOMIC_LONG_PFX(_t) *v = (ATOMIC_LONG_PFX(_t) *)l; |
bb2382c3 | 150 | |
586b610e | 151 | return ATOMIC_LONG_PFX(_inc_and_test)(v); |
bb2382c3 MD |
152 | } |
153 | ||
154 | static inline int atomic_long_add_negative(long i, atomic_long_t *l) | |
155 | { | |
586b610e | 156 | ATOMIC_LONG_PFX(_t) *v = (ATOMIC_LONG_PFX(_t) *)l; |
bb2382c3 | 157 | |
586b610e | 158 | return ATOMIC_LONG_PFX(_add_negative)(i, v); |
bb2382c3 MD |
159 | } |
160 | ||
63ab7bd0 DB |
161 | #define ATOMIC_LONG_INC_DEC_OP(op, mo) \ |
162 | static inline long \ | |
163 | atomic_long_##op##_return##mo(atomic_long_t *l) \ | |
164 | { \ | |
165 | ATOMIC_LONG_PFX(_t) *v = (ATOMIC_LONG_PFX(_t) *)l; \ | |
166 | \ | |
167 | return (long)ATOMIC_LONG_PFX(_##op##_return##mo)(v); \ | |
bb2382c3 | 168 | } |
63ab7bd0 DB |
169 | ATOMIC_LONG_INC_DEC_OP(inc,) |
170 | ATOMIC_LONG_INC_DEC_OP(inc, _relaxed) | |
171 | ATOMIC_LONG_INC_DEC_OP(inc, _acquire) | |
172 | ATOMIC_LONG_INC_DEC_OP(inc, _release) | |
173 | ATOMIC_LONG_INC_DEC_OP(dec,) | |
174 | ATOMIC_LONG_INC_DEC_OP(dec, _relaxed) | |
175 | ATOMIC_LONG_INC_DEC_OP(dec, _acquire) | |
176 | ATOMIC_LONG_INC_DEC_OP(dec, _release) | |
177 | ||
178 | #undef ATOMIC_LONG_INC_DEC_OP | |
bb2382c3 | 179 | |
2856f5e3 MD |
180 | static inline long atomic_long_add_unless(atomic_long_t *l, long a, long u) |
181 | { | |
586b610e | 182 | ATOMIC_LONG_PFX(_t) *v = (ATOMIC_LONG_PFX(_t) *)l; |
2856f5e3 | 183 | |
586b610e | 184 | return (long)ATOMIC_LONG_PFX(_add_unless)(v, a, u); |
2856f5e3 | 185 | } |
bb2382c3 | 186 | |
586b610e WD |
187 | #define atomic_long_inc_not_zero(l) \ |
188 | ATOMIC_LONG_PFX(_inc_not_zero)((ATOMIC_LONG_PFX(_t) *)(l)) | |
4b358e22 | 189 | |
72099ed2 | 190 | #endif /* _ASM_GENERIC_ATOMIC_LONG_H */ |