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
174
175
176
177
|
/* Set a block of memory to some byte value. For SUN4V Niagara.
Copyright (C) 2006-2020 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by David S. Miller (davem@davemloft.net)
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <sysdep.h>
#define ASI_BLK_INIT_QUAD_LDD_P 0xe2
#define ASI_P 0x80
#define ASI_PNF 0x82
#ifndef XCC
#define USE_BPR
#define XCC xcc
#endif
#if IS_IN (libc)
.register %g2,#scratch
.text
.align 32
ENTRY(__memset_niagara1)
/* %o0=buf, %o1=pat, %o2=len */
and %o1, 0xff, %o3
mov %o2, %o1
sllx %o3, 8, %g1
or %g1, %o3, %o2
sllx %o2, 16, %g1
or %g1, %o2, %o2
sllx %o2, 32, %g1
ba,pt %XCC, 1f
or %g1, %o2, %o2
END(__memset_niagara1)
ENTRY(__bzero_niagara1)
clr %o2
1:
# ifndef USE_BRP
srl %o1, 0, %o1
# endif
brz,pn %o1, 90f
mov %o0, %o3
wr %g0, ASI_P, %asi
cmp %o1, 15
blu,pn %XCC, 70f
andcc %o0, 0x7, %g1
be,pt %XCC, 2f
mov 8, %g2
sub %g2, %g1, %g1
sub %o1, %g1, %o1
1: stba %o2, [%o0 + 0x00] %asi
subcc %g1, 1, %g1
bne,pt %XCC, 1b
add %o0, 1, %o0
2: cmp %o1, 128
blu,pn %XCC, 60f
andcc %o0, (64 - 1), %g1
be,pt %XCC, 40f
mov 64, %g2
sub %g2, %g1, %g1
sub %o1, %g1, %o1
1: stxa %o2, [%o0 + 0x00] %asi
subcc %g1, 8, %g1
bne,pt %XCC, 1b
add %o0, 8, %o0
40:
wr %g0, ASI_BLK_INIT_QUAD_LDD_P, %asi
andn %o1, (64 - 1), %g1
sub %o1, %g1, %o1
andn %g1, (256 - 1), %g2
brz,pt %g2, 50f
and %g1, (256 - 1), %g1
45:
stxa %o2, [%o0 + 0x00] %asi
stxa %o2, [%o0 + 0x08] %asi
stxa %o2, [%o0 + 0x10] %asi
stxa %o2, [%o0 + 0x18] %asi
stxa %o2, [%o0 + 0x20] %asi
stxa %o2, [%o0 + 0x28] %asi
stxa %o2, [%o0 + 0x30] %asi
stxa %o2, [%o0 + 0x38] %asi
stxa %o2, [%o0 + 0x40] %asi
stxa %o2, [%o0 + 0x48] %asi
stxa %o2, [%o0 + 0x50] %asi
stxa %o2, [%o0 + 0x58] %asi
stxa %o2, [%o0 + 0x60] %asi
stxa %o2, [%o0 + 0x68] %asi
stxa %o2, [%o0 + 0x70] %asi
stxa %o2, [%o0 + 0x78] %asi
stxa %o2, [%o0 + 0x80] %asi
stxa %o2, [%o0 + 0x88] %asi
stxa %o2, [%o0 + 0x90] %asi
stxa %o2, [%o0 + 0x98] %asi
stxa %o2, [%o0 + 0xa0] %asi
stxa %o2, [%o0 + 0xa8] %asi
stxa %o2, [%o0 + 0xb0] %asi
stxa %o2, [%o0 + 0xb8] %asi
stxa %o2, [%o0 + 0xc0] %asi
stxa %o2, [%o0 + 0xc8] %asi
stxa %o2, [%o0 + 0xd0] %asi
stxa %o2, [%o0 + 0xd8] %asi
stxa %o2, [%o0 + 0xe0] %asi
stxa %o2, [%o0 + 0xe8] %asi
stxa %o2, [%o0 + 0xf0] %asi
stxa %o2, [%o0 + 0xf8] %asi
subcc %g2, 256, %g2
bne,pt %XCC, 45b
add %o0, 256, %o0
brz,pn %g1, 55f
nop
50:
stxa %o2, [%o0 + 0x00] %asi
stxa %o2, [%o0 + 0x08] %asi
stxa %o2, [%o0 + 0x10] %asi
stxa %o2, [%o0 + 0x18] %asi
stxa %o2, [%o0 + 0x20] %asi
stxa %o2, [%o0 + 0x28] %asi
stxa %o2, [%o0 + 0x30] %asi
stxa %o2, [%o0 + 0x38] %asi
subcc %g1, 64, %g1
bne,pt %XCC, 50b
add %o0, 64, %o0
55:
wr %g0, ASI_P, %asi
brz,pn %o1, 80f
60:
andncc %o1, 0x7, %g1
be,pn %XCC, 2f
sub %o1, %g1, %o1
1: stxa %o2, [%o0 + 0x00] %asi
subcc %g1, 8, %g1
bne,pt %XCC, 1b
add %o0, 8, %o0
2: brz,pt %o1, 80f
nop
70:
1: stba %o2, [%o0 + 0x00] %asi
subcc %o1, 1, %o1
bne,pt %XCC, 1b
add %o0, 1, %o0
/* fallthrough */
80:
wr %g0, ASI_PNF, %asi
90:
retl
mov %o3, %o0
END(__bzero_niagara1)
#endif
|
