--- /dev/null
+#!/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;
projects / oweals / openssl.git / commitdiff