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openssl/crypto/sha/asm/keccak1600-avx512.pl
Andy Polyakov 313fa47fea Add sha/asm/keccak1600-avx512.pl. 
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
(Merged from https://github.com/openssl/openssl/pull/3861)
2017-07-07 10:04:33 +02:00

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#!/usr/bin/env perl
# Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.
#
# Licensed under the OpenSSL license (the "License"). You may not use
# this file except in compliance with the License. You can obtain a copy
# in the file LICENSE in the source distribution or at
# https://www.openssl.org/source/license.html
#
# ====================================================================
# Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
# project. The module is, however, dual licensed under OpenSSL and
# CRYPTOGAMS licenses depending on where you obtain it. For further
# details see http://www.openssl.org/~appro/cryptogams/.
# ====================================================================
#
# Keccak-1600 for AVX-512F.
#
# July 2017.
#
# Below code is KECCAK_1X_ALT implementation (see sha/keccak1600.c).
# Pretty straightforward, the only "magic" is data layout in registers.
# It's impossible to have one that is optimal for every step, hence
# it's changing as algorithm progresses. Data is saved in order that
# benefits Chi, but at the same time is easily convertible to order
# that benefits Theta. Conversion from Chi layout to Theta is
# explicit and reverse one is kind of fused with Pi...
#
########################################################################
# Numbers are cycles per processed byte out of large message.
#
# r=1088(*)
#
# Knights Landing -
# Skylake Xeon -
#
# (*) Corresponds to SHA3-256.
########################################################################
# Coordinates below correspond to those in sha/keccak1600.c. Layout
# suitable for Chi is one with y coordinates aligned column-wise. Trick
# is to add regular shift to x coordinate, so that Chi can still be
# performed with as little as 7 instructions, yet be converted to layout
# suitable for Theta with intra-register permutations alone. Here is
# "magic" layout for Chi (with pre-Theta shuffle):
#
# [4][4] [3][3] [2][2] [1][1] [0][0]>4.3.2.1.0>[4][4] [3][3] [2][2] [1][1] [0][0]
# [4][0] [3][4] [2][3] [1][2] [0][1]>3.2.1.0.4>[3][4] [2][3] [1][2] [0][1] [4][0]
# [4][1] [3][0] [2][4] [1][3] [0][2]>2.1.0.4.3>[2][4] [1][3] [0][2] [4][1] [3][0]
# [4][2] [3][1] [2][0] [1][4] [0][3]>1.0.4.3.2>[1][4] [0][3] [4][2] [3][1] [2][0]
# [4][3] [3][2] [2][1] [1][0] [0][4]>0.4.3.2.1>[0][4] [4][3] [3][2] [2][1] [1][0]
#
# Layout suitable to Theta has x coordinates aligned column-wise
# [it's interleaved with Pi indices transformation for reference]:
#
# [4][4] [3][3] [2][2] [1][1] [0][0] $A00
##[0][4] [0][3] [0][2] [0][1] [0][0]
# [3][4] [2][3] [1][2] [0][1] [4][0] $A01
##[2][3] [2][2] [2][1] [2][0] [2][4]
# [2][4] [1][3] [0][2] [4][1] [3][0] $A02
##[4][2] [4][1] [4][0] [4][4] [4][3]
# [1][4] [0][3] [4][2] [3][1] [2][0] $A03
##[1][1] [1][0] [1][4] [1][3] [1][2]
# [0][4] [4][3] [3][2] [2][1] [1][0] $A04
##[3][0] [3][4] [3][3] [3][2] [3][1]
#
# Pi itself is performed by blending above data and finally shuffling it
# to original Chi layout:
#
# [1][1] [2][2] [3][3] [4][4] [0][0]>1.2.3.4.0>[4][4] [3][3] [2][2] [1][1] [0][0]
# [2][3] [3][4] [4][0] [0][1] [1][2]>2.3.4.0.1>[4][0] [3][4] [2][3] [1][2] [0][1]
# [3][0] [4][1] [0][2] [1][3] [2][4]>3.4.0.1.2>[4][1] [3][0] [2][4] [1][3] [0][2]
# [4][2] [0][3] [1][4] [2][0] [3][1]>4.0.1.2.3>[4][2] [3][1] [2][0] [1][4] [0][3]
# [0][4] [1][0] [2][1] [3][2] [4][3]>0.1.2.3.4>[4][3] [3][2] [2][1] [1][0] [0][4]
#
# As implied, data is loaded in Chi layout. Digits in variables' names
# represent right most coordinates of loaded data chunk:
my ($A00, # [4][4] [3][3] [2][2] [1][1] [0][0]
$A01, # [4][0] [3][4] [2][3] [1][2] [0][1]
$A02, # [4][1] [3][0] [2][4] [1][3] [0][2]
$A03, # [4][2] [3][1] [2][0] [1][4] [0][3]
$A04) = # [4][3] [3][2] [2][1] [1][0] [0][4]
map("%zmm$_",(0..4));
# We also need to map the magic order into offsets within structure:
my @A_jagged = ([0,0], [1,0], [2,0], [3,0], [4,0],
[4,1], [0,1], [1,1], [2,1], [3,1],
[3,2], [4,2], [0,2], [1,2], [2,2],
[2,3], [3,3], [4,3], [0,3], [1,3],
[1,4], [2,4], [3,4], [4,4], [0,4]);
@A_jagged_in = map(8*($$_[0]*8+$$_[1]), @A_jagged); # ... and now linear
@A_jagged_out = map(8*($$_[0]*5+$$_[1]), @A_jagged); # ... and now linear
my @T = map("%zmm$_",(5..7,16..17));
my @Chi = map("%zmm$_",(18..22));
my @Theta = map("%zmm$_",(33,23..26)); # invalid @Theta[0] is not typo
my @Rhotate = map("%zmm$_",(27..31));
my ($C00,$D00) = @T[0..1];
my ($k00001,$k00010,$k00100,$k01000,$k10000,$k11111) = map("%k$_",(1..6));
$code.=<<___;
.text
.type __KeccakF1600,\@function
.align 32
__KeccakF1600:
lea iotas(%rip),%r10
mov \$24,%eax
jmp .Loop_avx512
.align 32
.Loop_avx512:
######################################### Theta
#vpermq $A00,@Theta[0],$A00 # doesn't actually change order
vpermq $A01,@Theta[1],$A01
vpermq $A02,@Theta[2],$A02
vpermq $A03,@Theta[3],$A03
vpermq $A04,@Theta[4],$A04
vpxorq $A01,$A00,$C00
vpxorq $A02,$C00,$C00
vpternlogq \$0x96,$A04,$A03,$C00
vprolq \$1,$C00,$D00
vpermq $C00,@Theta[1],$C00
vpermq $D00,@Theta[4],$D00
vpternlogq \$0x96,$C00,$D00,$A00
vpternlogq \$0x96,$C00,$D00,$A01
vpternlogq \$0x96,$C00,$D00,$A02
vpternlogq \$0x96,$C00,$D00,$A03
vpternlogq \$0x96,$C00,$D00,$A04
######################################### Rho
vprolvq @Rhotate[0],$A00,$A00
vprolvq @Rhotate[1],$A01,$A01
vprolvq @Rhotate[2],$A02,$A02
vprolvq @Rhotate[3],$A03,$A03
vprolvq @Rhotate[4],$A04,$A04
######################################### Pi
vpblendmq $A02,$A00,@{T[0]}{$k00010}
vpblendmq $A00,$A03,@{T[1]}{$k00010}
vpblendmq $A03,$A01,@{T[2]}{$k00010}
vpblendmq $A01,$A04,@{T[3]}{$k00010}
vpblendmq $A04,$A02,@{T[4]}{$k00010}
vpblendmq $A04,@T[0],@{T[0]}{$k00100}
vpblendmq $A02,@T[1],@{T[1]}{$k00100}
vpblendmq $A00,@T[2],@{T[2]}{$k00100}
vpblendmq $A03,@T[3],@{T[3]}{$k00100}
vpblendmq $A01,@T[4],@{T[4]}{$k00100}
vpblendmq $A01,@T[0],@{T[0]}{$k01000}
vpblendmq $A04,@T[1],@{T[1]}{$k01000}
vpblendmq $A02,@T[2],@{T[2]}{$k01000}
vpblendmq $A00,@T[3],@{T[3]}{$k01000}
vpblendmq $A03,@T[4],@{T[4]}{$k01000}
vpblendmq $A03,@T[0],@{T[0]}{$k10000}
vpblendmq $A01,@T[1],@{T[1]}{$k10000}
vpblendmq $A04,@T[2],@{T[2]}{$k10000}
vpblendmq $A02,@T[3],@{T[3]}{$k10000}
vpblendmq $A00,@T[4],@{T[4]}{$k10000}
vpermq @T[0],@Chi[0],$A00
vpermq @T[1],@Chi[1],$A01
vpermq @T[2],@Chi[2],$A02
vpermq @T[3],@Chi[3],$A03
vpermq @T[4],@Chi[4],$A04
######################################### Chi
vmovdqa64 $A00,@T[0]
vpternlogq \$0xD2,$A02,$A01,$A00
vmovdqa64 $A01,@T[1]
vpternlogq \$0xD2,$A03,$A02,$A01
vpternlogq \$0xD2,$A04,$A03,$A02
vpternlogq \$0xD2,@T[0],$A04,$A03
vpternlogq \$0xD2,@T[1],@T[0],$A04
######################################### Iota
vpxorq (%r10),$A00,${A00}{$k00001}
lea 8(%r10),%r10
dec %eax
jnz .Loop_avx512
ret
.size __KeccakF1600,.-__KeccakF1600
___
my ($A_flat,$inp,$len,$bsz) = ("%rdi","%rsi","%rdx","%rcx");
my $out = $inp; # in squeeze
$code.=<<___;
.globl SHA3_absorb
.type SHA3_absorb,\@function
.align 32
SHA3_absorb:
mov %rsp,%r11
lea -320(%rsp),%rsp
and \$-64,%rsp
lea 96($A_flat),$A_flat
lea 96($inp),$inp
lea 128(%rsp),%r9
vzeroupper
lea theta_perm(%rip),%r8
kxnorw $k11111,$k11111,$k11111
kshiftrw \$15,$k11111,$k00001
kshiftrw \$11,$k11111,$k11111
kshiftlw \$1,$k00001,$k00010
kshiftlw \$2,$k00001,$k00100
kshiftlw \$3,$k00001,$k01000
kshiftlw \$4,$k00001,$k10000
#vmovdqa64 64*0(%r8),@Theta[0]
vmovdqa64 64*1(%r8),@Theta[1]
vmovdqa64 64*2(%r8),@Theta[2]
vmovdqa64 64*3(%r8),@Theta[3]
vmovdqa64 64*4(%r8),@Theta[4]
vmovdqa64 64*5(%r8),@Rhotate[0]
vmovdqa64 64*6(%r8),@Rhotate[1]
vmovdqa64 64*7(%r8),@Rhotate[2]
vmovdqa64 64*8(%r8),@Rhotate[3]
vmovdqa64 64*9(%r8),@Rhotate[4]
vmovdqa64 64*10(%r8),@Chi[0]
vmovdqa64 64*11(%r8),@Chi[1]
vmovdqa64 64*12(%r8),@Chi[2]
vmovdqa64 64*13(%r8),@Chi[3]
vmovdqa64 64*14(%r8),@Chi[4]
vmovdqu64 40*0-96($A_flat),${A00}{$k11111}{z}
vpxorq @T[0],@T[0],@T[0]
vmovdqu64 40*1-96($A_flat),${A01}{$k11111}{z}
vmovdqu64 40*2-96($A_flat),${A02}{$k11111}{z}
vmovdqu64 40*3-96($A_flat),${A03}{$k11111}{z}
vmovdqu64 40*4-96($A_flat),${A04}{$k11111}{z}
vmovdqa64 @T[0],0*64-128(%r9) # zero transfer area on stack
vmovdqa64 @T[0],1*64-128(%r9)
vmovdqa64 @T[0],2*64-128(%r9)
vmovdqa64 @T[0],3*64-128(%r9)
vmovdqa64 @T[0],4*64-128(%r9)
jmp .Loop_absorb_avx512
.align 32
.Loop_absorb_avx512:
mov $bsz,%rax
sub $bsz,$len
jc .Ldone_absorb_avx512
shr \$3,%eax
vmovdqu64 -96($inp),@{T[0]}{$k11111}
sub \$4,%eax
___
for(my $i=5; $i<25; $i++) {
$code.=<<___
dec %eax
jz .Labsorved_avx512
mov 8*$i-96($inp),%r8
mov %r8,$A_jagged_in[$i]-128(%r9)
___
}
$code.=<<___;
.Labsorved_avx512:
lea ($inp,$bsz),$inp
vpxorq @T[0],$A00,$A00
vpxorq 64*1-128(%r9),$A01,$A01
vpxorq 64*2-128(%r9),$A02,$A02
vpxorq 64*3-128(%r9),$A03,$A03
vpxorq 64*4-128(%r9),$A04,$A04
call __KeccakF1600
jmp .Loop_absorb_avx512
.align 32
.Ldone_absorb_avx512:
vmovdqu64 $A00,40*0-96($A_flat){$k11111}
vmovdqu64 $A01,40*1-96($A_flat){$k11111}
vmovdqu64 $A02,40*2-96($A_flat){$k11111}
vmovdqu64 $A03,40*3-96($A_flat){$k11111}
vmovdqu64 $A04,40*4-96($A_flat){$k11111}
vzeroupper
lea (%r11),%rsp
lea ($len,$bsz),%rax # return value
ret
.size SHA3_absorb,.-SHA3_absorb
.globl SHA3_squeeze
.type SHA3_squeeze,\@function
.align 32
SHA3_squeeze:
mov %rsp,%r11
lea 96($A_flat),$A_flat
cmp $bsz,$len
jbe .Lno_output_extension_avx512
vzeroupper
lea theta_perm(%rip),%r8
kxnorw $k11111,$k11111,$k11111
kshiftrw \$15,$k11111,$k00001
kshiftrw \$11,$k11111,$k11111
kshiftlw \$1,$k00001,$k00010
kshiftlw \$2,$k00001,$k00100
kshiftlw \$3,$k00001,$k01000
kshiftlw \$4,$k00001,$k10000
#vmovdqa64 64*0(%r8),@Theta[0]
vmovdqa64 64*1(%r8),@Theta[1]
vmovdqa64 64*2(%r8),@Theta[2]
vmovdqa64 64*3(%r8),@Theta[3]
vmovdqa64 64*4(%r8),@Theta[4]
vmovdqa64 64*5(%r8),@Rhotate[0]
vmovdqa64 64*6(%r8),@Rhotate[1]
vmovdqa64 64*7(%r8),@Rhotate[2]
vmovdqa64 64*8(%r8),@Rhotate[3]
vmovdqa64 64*9(%r8),@Rhotate[4]
vmovdqa64 64*10(%r8),@Chi[0]
vmovdqa64 64*11(%r8),@Chi[1]
vmovdqa64 64*12(%r8),@Chi[2]
vmovdqa64 64*13(%r8),@Chi[3]
vmovdqa64 64*14(%r8),@Chi[4]
vmovdqu64 40*0-96($A_flat),${A00}{$k11111}{z}
vmovdqu64 40*1-96($A_flat),${A01}{$k11111}{z}
vmovdqu64 40*2-96($A_flat),${A02}{$k11111}{z}
vmovdqu64 40*3-96($A_flat),${A03}{$k11111}{z}
vmovdqu64 40*4-96($A_flat),${A04}{$k11111}{z}
.Lno_output_extension_avx512:
shr \$3,$bsz
mov $bsz,%rax
.Loop_squeeze_avx512:
mov @A_jagged_out[$i]-96($A_flat),%r8
___
for (my $i=0; $i<25; $i++) {
$code.=<<___;
sub \$8,$len
jc .Ltail_squeeze_avx512
mov %r8,($out)
lea 8($out),$out
je .Ldone_squeeze_avx512
dec %eax
je .Lextend_output_avx512
mov @A_jagged_out[$i+1]-96($A_flat),%r8
___
}
$code.=<<___;
.Lextend_output_avx512:
call __KeccakF1600
vmovdqu64 $A00,40*0-96($A_flat){$k11111}
vmovdqu64 $A01,40*1-96($A_flat){$k11111}
vmovdqu64 $A02,40*2-96($A_flat){$k11111}
vmovdqu64 $A03,40*3-96($A_flat){$k11111}
vmovdqu64 $A04,40*4-96($A_flat){$k11111}
mov $bsz,%rax
jmp .Loop_squeeze_avx512
.Ltail_squeeze_avx512:
add \$8,$len
.Loop_tail_avx512:
mov %r8b,($out)
lea 1($out),$out
shr \$8,%r8
dec $len
jnz .Loop_tail_avx512
.Ldone_squeeze_avx512:
vzeroupper
lea (%r11),%rsp
ret
.size SHA3_squeeze,.-SHA3_squeeze
.align 64
theta_perm:
.quad 0, 1, 2, 3, 4, 5, 6, 7 # [not used]
.quad 4, 0, 1, 2, 3, 5, 6, 7
.quad 3, 4, 0, 1, 2, 5, 6, 7
.quad 2, 3, 4, 0, 1, 5, 6, 7
.quad 1, 2, 3, 4, 0, 5, 6, 7
rhotates:
.quad 0, 44, 43, 21, 14, 0, 0, 0 # [0][0] [1][1] [2][2] [3][3] [4][4]
.quad 18, 1, 6, 25, 8, 0, 0, 0 # [4][0] [0][1] [1][2] [2][3] [3][4]
.quad 41, 2, 62, 55, 39, 0, 0, 0 # [3][0] [4][1] [0][2] [1][3] [2][4]
.quad 3, 45, 61, 28, 20, 0, 0, 0 # [2][0] [3][1] [4][2] [0][3] [1][4]
.quad 36, 10, 15, 56, 27, 0, 0, 0 # [1][0] [2][1] [3][2] [4][3] [0][4]
chi_perm:
.quad 0, 4, 3, 2, 1, 5, 6, 7
.quad 1, 0, 4, 3, 2, 5, 6, 7
.quad 2, 1, 0, 4, 3, 5, 6, 7
.quad 3, 2, 1, 0, 4, 5, 6, 7
.quad 4, 3, 2, 1, 0, 5, 6, 7
iotas:
.quad 0x0000000000000001
.quad 0x0000000000008082
.quad 0x800000000000808a
.quad 0x8000000080008000
.quad 0x000000000000808b
.quad 0x0000000080000001
.quad 0x8000000080008081
.quad 0x8000000000008009
.quad 0x000000000000008a
.quad 0x0000000000000088
.quad 0x0000000080008009
.quad 0x000000008000000a
.quad 0x000000008000808b
.quad 0x800000000000008b
.quad 0x8000000000008089
.quad 0x8000000000008003
.quad 0x8000000000008002
.quad 0x8000000000000080
.quad 0x000000000000800a
.quad 0x800000008000000a
.quad 0x8000000080008081
.quad 0x8000000000008080
.quad 0x0000000080000001
.quad 0x8000000080008008
.asciz "Keccak-1600 absorb and squeeze for AVX-512F, CRYPTOGAMS by <appro\@openssl.org>"
___
print $code;
close STDOUT;
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