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
|
#include <asm.h>
#include <regdef.h>
.text
.align 3
LEAF(opal_atomic_mb)
sync
j ra
END(opal_atomic_mb)
.align 3
LEAF(opal_atomic_rmb)
sync
j ra
END(opal_atomic_rmb)
LEAF(opal_atomic_wmb)
sync
j ra
END(opal_atomic_wmb)
LEAF(opal_atomic_cmpset_32)
.set noreorder
retry1:
ll $3, 0($4)
bne $3, $5, done1
or $2, $6, 0
sc $2, 0($4)
bne $2, 1, retry1
done1:
.set reorder
xor $3,$3,$5
j ra
sltu $2,$3,1
END(opal_atomic_cmpset_32)
LEAF(opal_atomic_cmpset_acq_32)
.set noreorder
retry2:
ll $3, 0($4)
bne $3, $5, done2
or $2, $6, 0
sc $2, 0($4)
bne $2, 1, retry2
done2:
sync
.set reorder
xor $3,$3,$5
j ra
sltu $2,$3,1
END(opal_atomic_cmpset_acq_32)
LEAF(opal_atomic_cmpset_rel_32)
.set noreorder
sync
retry3:
ll $3, 0($4)
bne $3, $5, done3
or $2, $6, 0
sc $2, 0($4)
bne $2, 1, retry3
done3:
.set reorder
xor $3,$3,$5
j ra
sltu $2,$3,1
END(opal_atomic_cmpset_rel_32)
LEAF(opal_atomic_cmpset_64)
.set noreorder
retry4:
lld $3, 0($4)
bne $3, $5, done4
or $2, $6, 0
scd $2, 0($4)
bne $2, 1, retry4
done4:
.set reorder
xor $4,$3,$5
j ra
sltu $3,$4,1
END(opal_atomic_cmpset_64)
LEAF(opal_atomic_cmpset_acq_64)
.set noreorder
retry5:
lld $3, 0($4)
bne $3, $5, done5
or $2, $6, 0
scd $2, 0($4)
bne $2, 1, retry5
done5:
.set reorder
sync
xor $4,$3,$5
j ra
sltu $3,$4,1
END(opal_atomic_cmpset_acq_64)
LEAF(opal_atomic_cmpset_rel_64)
.set noreorder
sync
retry6:
lld $3, 0($4)
bne $3, $5, done6
or $2, $6, 0
scd $2, 0($4)
bne $2, 1, retry6
done6:
.set reorder
xor $4,$3,$5
j ra
sltu $3,$4,1
END(opal_atomic_cmpset_rel_64)
|
