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
|
// SPDX-License-Identifier: GPL-2.0-or-later
#include <linux/prefetch.h>
#include "xor_impl.h"
static void
xor_8regs_p_2(unsigned long bytes, unsigned long * __restrict p1,
const unsigned long * __restrict p2)
{
long lines = bytes / (sizeof (long)) / 8 - 1;
prefetchw(p1);
prefetch(p2);
do {
prefetchw(p1+8);
prefetch(p2+8);
once_more:
p1[0] ^= p2[0];
p1[1] ^= p2[1];
p1[2] ^= p2[2];
p1[3] ^= p2[3];
p1[4] ^= p2[4];
p1[5] ^= p2[5];
p1[6] ^= p2[6];
p1[7] ^= p2[7];
p1 += 8;
p2 += 8;
} while (--lines > 0);
if (lines == 0)
goto once_more;
}
static void
xor_8regs_p_3(unsigned long bytes, unsigned long * __restrict p1,
const unsigned long * __restrict p2,
const unsigned long * __restrict p3)
{
long lines = bytes / (sizeof (long)) / 8 - 1;
prefetchw(p1);
prefetch(p2);
prefetch(p3);
do {
prefetchw(p1+8);
prefetch(p2+8);
prefetch(p3+8);
once_more:
p1[0] ^= p2[0] ^ p3[0];
p1[1] ^= p2[1] ^ p3[1];
p1[2] ^= p2[2] ^ p3[2];
p1[3] ^= p2[3] ^ p3[3];
p1[4] ^= p2[4] ^ p3[4];
p1[5] ^= p2[5] ^ p3[5];
p1[6] ^= p2[6] ^ p3[6];
p1[7] ^= p2[7] ^ p3[7];
p1 += 8;
p2 += 8;
p3 += 8;
} while (--lines > 0);
if (lines == 0)
goto once_more;
}
static void
xor_8regs_p_4(unsigned long bytes, unsigned long * __restrict p1,
const unsigned long * __restrict p2,
const unsigned long * __restrict p3,
const unsigned long * __restrict p4)
{
long lines = bytes / (sizeof (long)) / 8 - 1;
prefetchw(p1);
prefetch(p2);
prefetch(p3);
prefetch(p4);
do {
prefetchw(p1+8);
prefetch(p2+8);
prefetch(p3+8);
prefetch(p4+8);
once_more:
p1[0] ^= p2[0] ^ p3[0] ^ p4[0];
p1[1] ^= p2[1] ^ p3[1] ^ p4[1];
p1[2] ^= p2[2] ^ p3[2] ^ p4[2];
p1[3] ^= p2[3] ^ p3[3] ^ p4[3];
p1[4] ^= p2[4] ^ p3[4] ^ p4[4];
p1[5] ^= p2[5] ^ p3[5] ^ p4[5];
p1[6] ^= p2[6] ^ p3[6] ^ p4[6];
p1[7] ^= p2[7] ^ p3[7] ^ p4[7];
p1 += 8;
p2 += 8;
p3 += 8;
p4 += 8;
} while (--lines > 0);
if (lines == 0)
goto once_more;
}
static void
xor_8regs_p_5(unsigned long bytes, unsigned long * __restrict p1,
const unsigned long * __restrict p2,
const unsigned long * __restrict p3,
const unsigned long * __restrict p4,
const unsigned long * __restrict p5)
{
long lines = bytes / (sizeof (long)) / 8 - 1;
prefetchw(p1);
prefetch(p2);
prefetch(p3);
prefetch(p4);
prefetch(p5);
do {
prefetchw(p1+8);
prefetch(p2+8);
prefetch(p3+8);
prefetch(p4+8);
prefetch(p5+8);
once_more:
p1[0] ^= p2[0] ^ p3[0] ^ p4[0] ^ p5[0];
p1[1] ^= p2[1] ^ p3[1] ^ p4[1] ^ p5[1];
p1[2] ^= p2[2] ^ p3[2] ^ p4[2] ^ p5[2];
p1[3] ^= p2[3] ^ p3[3] ^ p4[3] ^ p5[3];
p1[4] ^= p2[4] ^ p3[4] ^ p4[4] ^ p5[4];
p1[5] ^= p2[5] ^ p3[5] ^ p4[5] ^ p5[5];
p1[6] ^= p2[6] ^ p3[6] ^ p4[6] ^ p5[6];
p1[7] ^= p2[7] ^ p3[7] ^ p4[7] ^ p5[7];
p1 += 8;
p2 += 8;
p3 += 8;
p4 += 8;
p5 += 8;
} while (--lines > 0);
if (lines == 0)
goto once_more;
}
DO_XOR_BLOCKS(8regs_p, xor_8regs_p_2, xor_8regs_p_3, xor_8regs_p_4,
xor_8regs_p_5);
struct xor_block_template xor_block_8regs_p = {
.name = "8regs_prefetch",
.xor_gen = xor_gen_8regs_p,
};
|
