aboutsummaryrefslogtreecommitdiffstats
path: root/contrib/restricted/aws/s2n/pq-crypto/kyber_r3/kyber512r3_ntt_avx2.S
blob: dc80086cb16c0555041f273eab128e49f8e0ddf2 (plain) (blame)
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
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
#include "kyber512r3_consts_avx2.h"

// The small macros (.inc files) are combined with .S files directly
/*****.include "shuffle.inc"*****/
/********************************/
.macro shuffle8 r0,r1,r2,r3
vperm2i128  $0x20,%ymm\r1,%ymm\r0,%ymm\r2
vperm2i128  $0x31,%ymm\r1,%ymm\r0,%ymm\r3
.endm

.macro shuffle4 r0,r1,r2,r3
vpunpcklqdq %ymm\r1,%ymm\r0,%ymm\r2
vpunpckhqdq %ymm\r1,%ymm\r0,%ymm\r3
.endm

.macro shuffle2 r0,r1,r2,r3
#vpsllq     $32,%ymm\r1,%ymm\r2
vmovsldup   %ymm\r1,%ymm\r2
vpblendd    $0xAA,%ymm\r2,%ymm\r0,%ymm\r2
vpsrlq      $32,%ymm\r0,%ymm\r0
#vmovshdup  %ymm\r0,%ymm\r0
vpblendd    $0xAA,%ymm\r1,%ymm\r0,%ymm\r3
.endm

.macro shuffle1 r0,r1,r2,r3
vpslld      $16,%ymm\r1,%ymm\r2
vpblendw    $0xAA,%ymm\r2,%ymm\r0,%ymm\r2
vpsrld      $16,%ymm\r0,%ymm\r0
vpblendw    $0xAA,%ymm\r1,%ymm\r0,%ymm\r3
.endm
/********************************/

.macro mul rh0,rh1,rh2,rh3,zl0=15,zl1=15,zh0=2,zh1=2
vpmullw     %ymm\zl0,%ymm\rh0,%ymm12
vpmullw     %ymm\zl0,%ymm\rh1,%ymm13

vpmullw     %ymm\zl1,%ymm\rh2,%ymm14
vpmullw     %ymm\zl1,%ymm\rh3,%ymm15

vpmulhw     %ymm\zh0,%ymm\rh0,%ymm\rh0
vpmulhw     %ymm\zh0,%ymm\rh1,%ymm\rh1

vpmulhw     %ymm\zh1,%ymm\rh2,%ymm\rh2
vpmulhw     %ymm\zh1,%ymm\rh3,%ymm\rh3
.endm

.macro reduce
vpmulhw     %ymm0,%ymm12,%ymm12
vpmulhw     %ymm0,%ymm13,%ymm13

vpmulhw     %ymm0,%ymm14,%ymm14
vpmulhw     %ymm0,%ymm15,%ymm15
.endm

.macro update rln,rl0,rl1,rl2,rl3,rh0,rh1,rh2,rh3
vpaddw      %ymm\rh0,%ymm\rl0,%ymm\rln
vpsubw      %ymm\rh0,%ymm\rl0,%ymm\rh0
vpaddw      %ymm\rh1,%ymm\rl1,%ymm\rl0

vpsubw      %ymm\rh1,%ymm\rl1,%ymm\rh1
vpaddw      %ymm\rh2,%ymm\rl2,%ymm\rl1
vpsubw      %ymm\rh2,%ymm\rl2,%ymm\rh2

vpaddw      %ymm\rh3,%ymm\rl3,%ymm\rl2
vpsubw      %ymm\rh3,%ymm\rl3,%ymm\rh3

vpsubw      %ymm12,%ymm\rln,%ymm\rln
vpaddw      %ymm12,%ymm\rh0,%ymm\rh0
vpsubw      %ymm13,%ymm\rl0,%ymm\rl0

vpaddw      %ymm13,%ymm\rh1,%ymm\rh1
vpsubw      %ymm14,%ymm\rl1,%ymm\rl1
vpaddw      %ymm14,%ymm\rh2,%ymm\rh2

vpsubw      %ymm15,%ymm\rl2,%ymm\rl2
vpaddw      %ymm15,%ymm\rh3,%ymm\rh3
.endm

.macro level0 off
vpbroadcastq    (_ZETAS_EXP+0)*2(%rsi),%ymm15
vmovdqa         (64*\off+128)*2(%rdi),%ymm8
vmovdqa         (64*\off+144)*2(%rdi),%ymm9
vmovdqa         (64*\off+160)*2(%rdi),%ymm10
vmovdqa         (64*\off+176)*2(%rdi),%ymm11
vpbroadcastq    (_ZETAS_EXP+4)*2(%rsi),%ymm2

mul         8,9,10,11

vmovdqa     (64*\off+  0)*2(%rdi),%ymm4
vmovdqa     (64*\off+ 16)*2(%rdi),%ymm5
vmovdqa     (64*\off+ 32)*2(%rdi),%ymm6
vmovdqa     (64*\off+ 48)*2(%rdi),%ymm7

reduce
update      3,4,5,6,7,8,9,10,11

vmovdqa     %ymm3,(64*\off+  0)*2(%rdi)
vmovdqa     %ymm4,(64*\off+ 16)*2(%rdi)
vmovdqa     %ymm5,(64*\off+ 32)*2(%rdi)
vmovdqa     %ymm6,(64*\off+ 48)*2(%rdi)
vmovdqa     %ymm8,(64*\off+128)*2(%rdi)
vmovdqa     %ymm9,(64*\off+144)*2(%rdi)
vmovdqa     %ymm10,(64*\off+160)*2(%rdi)
vmovdqa     %ymm11,(64*\off+176)*2(%rdi)
.endm

.macro levels1t6 off
/* level 1 */
vmovdqa     (_ZETAS_EXP+224*\off+16)*2(%rsi),%ymm15
vmovdqa     (128*\off+ 64)*2(%rdi),%ymm8
vmovdqa     (128*\off+ 80)*2(%rdi),%ymm9
vmovdqa     (128*\off+ 96)*2(%rdi),%ymm10
vmovdqa     (128*\off+112)*2(%rdi),%ymm11
vmovdqa     (_ZETAS_EXP+224*\off+32)*2(%rsi),%ymm2

mul         8,9,10,11

vmovdqa     (128*\off+  0)*2(%rdi),%ymm4
vmovdqa     (128*\off+ 16)*2(%rdi),%ymm5
vmovdqa     (128*\off+ 32)*2(%rdi),%ymm6
vmovdqa     (128*\off+ 48)*2(%rdi),%ymm7

reduce
update      3,4,5,6,7,8,9,10,11

/* level 2 */
shuffle8    5,10,7,10
shuffle8    6,11,5,11

vmovdqa     (_ZETAS_EXP+224*\off+48)*2(%rsi),%ymm15
vmovdqa     (_ZETAS_EXP+224*\off+64)*2(%rsi),%ymm2

mul         7,10,5,11

shuffle8    3,8,6,8
shuffle8    4,9,3,9

reduce
update      4,6,8,3,9,7,10,5,11

/* level 3 */
shuffle4    8,5,9,5
shuffle4    3,11,8,11

vmovdqa     (_ZETAS_EXP+224*\off+80)*2(%rsi),%ymm15
vmovdqa     (_ZETAS_EXP+224*\off+96)*2(%rsi),%ymm2

mul         9,5,8,11

shuffle4    4,7,3,7
shuffle4    6,10,4,10

reduce
update      6,3,7,4,10,9,5,8,11

/* level 4 */
shuffle2    7,8,10,8
shuffle2    4,11,7,11

vmovdqa     (_ZETAS_EXP+224*\off+112)*2(%rsi),%ymm15
vmovdqa     (_ZETAS_EXP+224*\off+128)*2(%rsi),%ymm2

mul         10,8,7,11

shuffle2    6,9,4,9
shuffle2    3,5,6,5

reduce
update      3,4,9,6,5,10,8,7,11

/* level 5 */
shuffle1    9,7,5,7
shuffle1    6,11,9,11

vmovdqa     (_ZETAS_EXP+224*\off+144)*2(%rsi),%ymm15
vmovdqa     (_ZETAS_EXP+224*\off+160)*2(%rsi),%ymm2

mul         5,7,9,11

shuffle1    3,10,6,10
shuffle1    4,8,3,8

reduce
update      4,6,10,3,8,5,7,9,11

/* level 6 */
vmovdqa     (_ZETAS_EXP+224*\off+176)*2(%rsi),%ymm14
vmovdqa     (_ZETAS_EXP+224*\off+208)*2(%rsi),%ymm15
vmovdqa     (_ZETAS_EXP+224*\off+192)*2(%rsi),%ymm8
vmovdqa     (_ZETAS_EXP+224*\off+224)*2(%rsi),%ymm2

mul         10,3,9,11,14,15,8,2

reduce
update      8,4,6,5,7,10,3,9,11

vmovdqa     %ymm8,(128*\off+  0)*2(%rdi)
vmovdqa     %ymm4,(128*\off+ 16)*2(%rdi)
vmovdqa     %ymm10,(128*\off+ 32)*2(%rdi)
vmovdqa     %ymm3,(128*\off+ 48)*2(%rdi)
vmovdqa     %ymm6,(128*\off+ 64)*2(%rdi)
vmovdqa     %ymm5,(128*\off+ 80)*2(%rdi)
vmovdqa     %ymm9,(128*\off+ 96)*2(%rdi)
vmovdqa     %ymm11,(128*\off+112)*2(%rdi)
.endm

.text
.global cdecl(ntt_avx2_asm)
cdecl(ntt_avx2_asm):
vmovdqa     _16XQ*2(%rsi),%ymm0

level0      0
level0      1

levels1t6   0
levels1t6   1

ret