summaryrefslogtreecommitdiff
path: root/sysdeps/sparc/sparc64/multiarch/memset-niagara1.S
blob: 8752b16f4a079694dfa8a99a554764a0258d284d (plain)
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) 2006-2018 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
   <http://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