1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
|
/*
* %CopyrightBegin%
*
* Copyright Ericsson AB 2008-2010. All Rights Reserved.
*
* The contents of this file are subject to the Erlang Public License,
* Version 1.1, (the "License"); you may not use this file except in
* compliance with the License. You should have received a copy of the
* Erlang Public License along with this software. If not, it can be
* retrieved online at http://www.erlang.org/.
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and limitations
* under the License.
*
* %CopyrightEnd%
*/
/*
* Native ethread atomics on TILE64/TILEPro.
*
*/
#ifndef ETHREAD_TILE_ATOMIC_H
#define ETHREAD_TILE_ATOMIC_H
#include <atomic.h>
/* An atomic is an aligned int accessed via locked operations.
*/
typedef struct {
volatile long counter;
} ethr_native_atomic_t;
#define ETHR_MEMORY_BARRIER __insn_mf()
#if defined(ETHR_TRY_INLINE_FUNCS) || defined(ETHR_AUX_IMPL__)
static ETHR_INLINE void
ethr_native_atomic_init(ethr_native_atomic_t *var, long i)
{
var->counter = i;
}
static ETHR_INLINE void
ethr_native_atomic_set(ethr_native_atomic_t *var, long i)
{
atomic_exchange_acq(&var->counter, i);
}
static ETHR_INLINE long
ethr_native_atomic_read(ethr_native_atomic_t *var)
{
return var->counter;
}
static ETHR_INLINE void
ethr_native_atomic_add(ethr_native_atomic_t *var, long incr)
{
atomic_add(&var->counter, incr);
}
static ETHR_INLINE void
ethr_native_atomic_inc(ethr_native_atomic_t *var)
{
atomic_increment(&var->counter);
}
static ETHR_INLINE void
ethr_native_atomic_dec(ethr_native_atomic_t *var)
{
atomic_decrement(&var->counter);
}
static ETHR_INLINE long
ethr_native_atomic_add_return(ethr_native_atomic_t *var, long incr)
{
return atomic_exchange_and_add(&var->counter, incr) + incr;
}
static ETHR_INLINE long
ethr_native_atomic_inc_return(ethr_native_atomic_t *var)
{
return ethr_native_atomic_add_return(var, 1);
}
static ETHR_INLINE long
ethr_native_atomic_dec_return(ethr_native_atomic_t *var)
{
return ethr_native_atomic_add_return(var, -1);
}
static ETHR_INLINE long
ethr_native_atomic_and_retold(ethr_native_atomic_t *var, long mask)
{
return atomic_and_val(&var->counter, mask);
}
static ETHR_INLINE long
ethr_native_atomic_or_retold(ethr_native_atomic_t *var, long mask)
{
return atomic_or_val(&var->counter, mask);
}
static ETHR_INLINE long
ethr_native_atomic_xchg(ethr_native_atomic_t *var, long val)
{
return atomic_exchange_acq(&var->counter, val);
}
static ETHR_INLINE long
ethr_native_atomic_cmpxchg(ethr_native_atomic_t *var, long new, long expected)
{
return atomic_compare_and_exchange_val_acq(&var->counter, new, expected);
}
/*
* Atomic ops with at least specified barriers.
*/
static ETHR_INLINE long
ethr_native_atomic_read_acqb(ethr_native_atomic_t *var)
{
long res = ethr_native_atomic_read(var);
ETHR_MEMORY_BARRIER;
return res;
}
static ETHR_INLINE long
ethr_native_atomic_inc_return_acqb(ethr_native_atomic_t *var)
{
long res = ethr_native_atomic_inc_return(var);
ETHR_MEMORY_BARRIER;
return res;
}
static ETHR_INLINE void
ethr_native_atomic_set_relb(ethr_native_atomic_t *var, long val)
{
ETHR_MEMORY_BARRIER;
ethr_native_atomic_set(var, val);
}
static ETHR_INLINE void
ethr_native_atomic_dec_relb(ethr_native_atomic_t *var)
{
ETHR_MEMORY_BARRIER;
ethr_native_atomic_dec(var);
}
static ETHR_INLINE long
ethr_native_atomic_dec_return_relb(ethr_native_atomic_t *var)
{
ETHR_MEMORY_BARRIER;
return ethr_native_atomic_dec_return(var);
}
static ETHR_INLINE long
ethr_native_atomic_cmpxchg_acqb(ethr_native_atomic_t *var, long new, long exp)
{
return ethr_native_atomic_cmpxchg(var, new, exp);
}
static ETHR_INLINE long
ethr_native_atomic_cmpxchg_relb(ethr_native_atomic_t *var, long new, long exp)
{
ETHR_MEMORY_BARRIER;
return ethr_native_atomic_cmpxchg(var, new, exp);
}
#endif /* ETHR_TRY_INLINE_FUNCS */
#endif /* ETHREAD_TILE_ATOMIC_H */
|
