1136 lines
26 KiB
Raku
Executable file
1136 lines
26 KiB
Raku
Executable file
#! /usr/bin/env perl
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# Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
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#
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# Licensed under the OpenSSL license (the "License"). You may not use
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# this file except in compliance with the License. You can obtain a copy
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# in the file LICENSE in the source distribution or at
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# https://www.openssl.org/source/license.html
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#
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# ====================================================================
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# Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
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# project. The module is, however, dual licensed under OpenSSL and
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# CRYPTOGAMS licenses depending on where you obtain it. For further
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# details see http://www.openssl.org/~appro/cryptogams/.
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# ====================================================================
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#
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# June 2015
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#
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# ChaCha20 for ARMv8.
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#
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# Performance in cycles per byte out of large buffer.
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#
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# IALU/gcc-4.9 3xNEON+1xIALU 6xNEON+2xIALU
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#
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# Apple A7 5.50/+49% 3.33 1.70
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# Cortex-A53 8.40/+80% 4.72 4.72(*)
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# Cortex-A57 8.06/+43% 4.90 4.43(**)
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# Denver 4.50/+82% 2.63 2.67(*)
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# X-Gene 9.50/+46% 8.82 8.89(*)
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# Mongoose 8.00/+44% 3.64 3.25
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# Kryo 8.17/+50% 4.83 4.65
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#
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# (*) it's expected that doubling interleave factor doesn't help
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# all processors, only those with higher NEON latency and
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# higher instruction issue rate;
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# (**) expected improvement was actually higher;
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$flavour=shift;
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$output=shift;
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$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
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( $xlate="${dir}arm-xlate.pl" and -f $xlate ) or
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( $xlate="${dir}../../perlasm/arm-xlate.pl" and -f $xlate) or
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die "can't locate arm-xlate.pl";
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open OUT,"| \"$^X\" $xlate $flavour $output";
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*STDOUT=*OUT;
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sub AUTOLOAD() # thunk [simplified] x86-style perlasm
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{ my $opcode = $AUTOLOAD; $opcode =~ s/.*:://; $opcode =~ s/_/\./;
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my $arg = pop;
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$arg = "#$arg" if ($arg*1 eq $arg);
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$code .= "\t$opcode\t".join(',',@_,$arg)."\n";
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}
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my ($out,$inp,$len,$key,$ctr) = map("x$_",(0..4));
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my @x=map("x$_",(5..17,19..21));
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my @d=map("x$_",(22..28,30));
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sub ROUND {
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my ($a0,$b0,$c0,$d0)=@_;
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my ($a1,$b1,$c1,$d1)=map(($_&~3)+(($_+1)&3),($a0,$b0,$c0,$d0));
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my ($a2,$b2,$c2,$d2)=map(($_&~3)+(($_+1)&3),($a1,$b1,$c1,$d1));
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my ($a3,$b3,$c3,$d3)=map(($_&~3)+(($_+1)&3),($a2,$b2,$c2,$d2));
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(
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"&add_32 (@x[$a0],@x[$a0],@x[$b0])",
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"&add_32 (@x[$a1],@x[$a1],@x[$b1])",
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"&add_32 (@x[$a2],@x[$a2],@x[$b2])",
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"&add_32 (@x[$a3],@x[$a3],@x[$b3])",
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"&eor_32 (@x[$d0],@x[$d0],@x[$a0])",
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"&eor_32 (@x[$d1],@x[$d1],@x[$a1])",
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"&eor_32 (@x[$d2],@x[$d2],@x[$a2])",
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"&eor_32 (@x[$d3],@x[$d3],@x[$a3])",
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"&ror_32 (@x[$d0],@x[$d0],16)",
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"&ror_32 (@x[$d1],@x[$d1],16)",
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"&ror_32 (@x[$d2],@x[$d2],16)",
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"&ror_32 (@x[$d3],@x[$d3],16)",
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"&add_32 (@x[$c0],@x[$c0],@x[$d0])",
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"&add_32 (@x[$c1],@x[$c1],@x[$d1])",
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"&add_32 (@x[$c2],@x[$c2],@x[$d2])",
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"&add_32 (@x[$c3],@x[$c3],@x[$d3])",
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"&eor_32 (@x[$b0],@x[$b0],@x[$c0])",
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"&eor_32 (@x[$b1],@x[$b1],@x[$c1])",
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"&eor_32 (@x[$b2],@x[$b2],@x[$c2])",
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"&eor_32 (@x[$b3],@x[$b3],@x[$c3])",
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"&ror_32 (@x[$b0],@x[$b0],20)",
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"&ror_32 (@x[$b1],@x[$b1],20)",
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"&ror_32 (@x[$b2],@x[$b2],20)",
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"&ror_32 (@x[$b3],@x[$b3],20)",
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"&add_32 (@x[$a0],@x[$a0],@x[$b0])",
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"&add_32 (@x[$a1],@x[$a1],@x[$b1])",
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"&add_32 (@x[$a2],@x[$a2],@x[$b2])",
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"&add_32 (@x[$a3],@x[$a3],@x[$b3])",
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"&eor_32 (@x[$d0],@x[$d0],@x[$a0])",
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"&eor_32 (@x[$d1],@x[$d1],@x[$a1])",
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"&eor_32 (@x[$d2],@x[$d2],@x[$a2])",
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"&eor_32 (@x[$d3],@x[$d3],@x[$a3])",
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"&ror_32 (@x[$d0],@x[$d0],24)",
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"&ror_32 (@x[$d1],@x[$d1],24)",
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"&ror_32 (@x[$d2],@x[$d2],24)",
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"&ror_32 (@x[$d3],@x[$d3],24)",
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"&add_32 (@x[$c0],@x[$c0],@x[$d0])",
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"&add_32 (@x[$c1],@x[$c1],@x[$d1])",
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"&add_32 (@x[$c2],@x[$c2],@x[$d2])",
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"&add_32 (@x[$c3],@x[$c3],@x[$d3])",
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"&eor_32 (@x[$b0],@x[$b0],@x[$c0])",
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"&eor_32 (@x[$b1],@x[$b1],@x[$c1])",
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"&eor_32 (@x[$b2],@x[$b2],@x[$c2])",
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"&eor_32 (@x[$b3],@x[$b3],@x[$c3])",
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"&ror_32 (@x[$b0],@x[$b0],25)",
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"&ror_32 (@x[$b1],@x[$b1],25)",
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"&ror_32 (@x[$b2],@x[$b2],25)",
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"&ror_32 (@x[$b3],@x[$b3],25)"
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);
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}
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$code.=<<___;
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#include "arm_arch.h"
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.text
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.extern OPENSSL_armcap_P
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.align 5
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.Lsigma:
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.quad 0x3320646e61707865,0x6b20657479622d32 // endian-neutral
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.Lone:
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.long 1,0,0,0
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.LOPENSSL_armcap_P:
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#ifdef __ILP32__
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.long OPENSSL_armcap_P-.
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#else
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.quad OPENSSL_armcap_P-.
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#endif
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.asciz "ChaCha20 for ARMv8, CRYPTOGAMS by <appro\@openssl.org>"
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.globl ChaCha20_ctr32
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.type ChaCha20_ctr32,%function
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.align 5
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ChaCha20_ctr32:
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cbz $len,.Labort
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adr @x[0],.LOPENSSL_armcap_P
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cmp $len,#192
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b.lo .Lshort
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#ifdef __ILP32__
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ldrsw @x[1],[@x[0]]
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#else
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ldr @x[1],[@x[0]]
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#endif
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ldr w17,[@x[1],@x[0]]
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tst w17,#ARMV7_NEON
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b.ne ChaCha20_neon
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.Lshort:
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stp x29,x30,[sp,#-96]!
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add x29,sp,#0
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adr @x[0],.Lsigma
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stp x19,x20,[sp,#16]
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stp x21,x22,[sp,#32]
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stp x23,x24,[sp,#48]
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stp x25,x26,[sp,#64]
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stp x27,x28,[sp,#80]
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sub sp,sp,#64
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ldp @d[0],@d[1],[@x[0]] // load sigma
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ldp @d[2],@d[3],[$key] // load key
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ldp @d[4],@d[5],[$key,#16]
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ldp @d[6],@d[7],[$ctr] // load counter
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#ifdef __ARMEB__
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ror @d[2],@d[2],#32
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ror @d[3],@d[3],#32
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ror @d[4],@d[4],#32
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ror @d[5],@d[5],#32
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ror @d[6],@d[6],#32
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ror @d[7],@d[7],#32
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#endif
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.Loop_outer:
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mov.32 @x[0],@d[0] // unpack key block
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lsr @x[1],@d[0],#32
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mov.32 @x[2],@d[1]
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lsr @x[3],@d[1],#32
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mov.32 @x[4],@d[2]
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lsr @x[5],@d[2],#32
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mov.32 @x[6],@d[3]
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lsr @x[7],@d[3],#32
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mov.32 @x[8],@d[4]
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lsr @x[9],@d[4],#32
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mov.32 @x[10],@d[5]
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lsr @x[11],@d[5],#32
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mov.32 @x[12],@d[6]
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lsr @x[13],@d[6],#32
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mov.32 @x[14],@d[7]
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lsr @x[15],@d[7],#32
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mov $ctr,#10
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subs $len,$len,#64
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.Loop:
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sub $ctr,$ctr,#1
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___
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foreach (&ROUND(0, 4, 8,12)) { eval; }
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foreach (&ROUND(0, 5,10,15)) { eval; }
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$code.=<<___;
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cbnz $ctr,.Loop
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add.32 @x[0],@x[0],@d[0] // accumulate key block
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add @x[1],@x[1],@d[0],lsr#32
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add.32 @x[2],@x[2],@d[1]
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add @x[3],@x[3],@d[1],lsr#32
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add.32 @x[4],@x[4],@d[2]
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add @x[5],@x[5],@d[2],lsr#32
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add.32 @x[6],@x[6],@d[3]
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add @x[7],@x[7],@d[3],lsr#32
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add.32 @x[8],@x[8],@d[4]
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add @x[9],@x[9],@d[4],lsr#32
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add.32 @x[10],@x[10],@d[5]
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add @x[11],@x[11],@d[5],lsr#32
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add.32 @x[12],@x[12],@d[6]
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add @x[13],@x[13],@d[6],lsr#32
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add.32 @x[14],@x[14],@d[7]
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add @x[15],@x[15],@d[7],lsr#32
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b.lo .Ltail
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add @x[0],@x[0],@x[1],lsl#32 // pack
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add @x[2],@x[2],@x[3],lsl#32
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ldp @x[1],@x[3],[$inp,#0] // load input
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add @x[4],@x[4],@x[5],lsl#32
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add @x[6],@x[6],@x[7],lsl#32
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ldp @x[5],@x[7],[$inp,#16]
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add @x[8],@x[8],@x[9],lsl#32
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add @x[10],@x[10],@x[11],lsl#32
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ldp @x[9],@x[11],[$inp,#32]
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add @x[12],@x[12],@x[13],lsl#32
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add @x[14],@x[14],@x[15],lsl#32
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ldp @x[13],@x[15],[$inp,#48]
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add $inp,$inp,#64
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#ifdef __ARMEB__
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rev @x[0],@x[0]
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rev @x[2],@x[2]
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rev @x[4],@x[4]
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rev @x[6],@x[6]
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rev @x[8],@x[8]
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rev @x[10],@x[10]
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rev @x[12],@x[12]
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rev @x[14],@x[14]
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#endif
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eor @x[0],@x[0],@x[1]
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eor @x[2],@x[2],@x[3]
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eor @x[4],@x[4],@x[5]
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eor @x[6],@x[6],@x[7]
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eor @x[8],@x[8],@x[9]
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eor @x[10],@x[10],@x[11]
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eor @x[12],@x[12],@x[13]
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eor @x[14],@x[14],@x[15]
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stp @x[0],@x[2],[$out,#0] // store output
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add @d[6],@d[6],#1 // increment counter
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stp @x[4],@x[6],[$out,#16]
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stp @x[8],@x[10],[$out,#32]
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stp @x[12],@x[14],[$out,#48]
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add $out,$out,#64
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b.hi .Loop_outer
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ldp x19,x20,[x29,#16]
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add sp,sp,#64
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ldp x21,x22,[x29,#32]
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ldp x23,x24,[x29,#48]
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ldp x25,x26,[x29,#64]
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ldp x27,x28,[x29,#80]
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ldp x29,x30,[sp],#96
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.Labort:
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ret
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.align 4
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.Ltail:
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add $len,$len,#64
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.Less_than_64:
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sub $out,$out,#1
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add $inp,$inp,$len
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add $out,$out,$len
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add $ctr,sp,$len
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neg $len,$len
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add @x[0],@x[0],@x[1],lsl#32 // pack
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add @x[2],@x[2],@x[3],lsl#32
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add @x[4],@x[4],@x[5],lsl#32
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add @x[6],@x[6],@x[7],lsl#32
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add @x[8],@x[8],@x[9],lsl#32
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add @x[10],@x[10],@x[11],lsl#32
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add @x[12],@x[12],@x[13],lsl#32
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add @x[14],@x[14],@x[15],lsl#32
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#ifdef __ARMEB__
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rev @x[0],@x[0]
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rev @x[2],@x[2]
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rev @x[4],@x[4]
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rev @x[6],@x[6]
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rev @x[8],@x[8]
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rev @x[10],@x[10]
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rev @x[12],@x[12]
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rev @x[14],@x[14]
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#endif
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stp @x[0],@x[2],[sp,#0]
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stp @x[4],@x[6],[sp,#16]
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stp @x[8],@x[10],[sp,#32]
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stp @x[12],@x[14],[sp,#48]
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.Loop_tail:
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ldrb w10,[$inp,$len]
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ldrb w11,[$ctr,$len]
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add $len,$len,#1
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eor w10,w10,w11
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strb w10,[$out,$len]
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cbnz $len,.Loop_tail
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stp xzr,xzr,[sp,#0]
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stp xzr,xzr,[sp,#16]
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stp xzr,xzr,[sp,#32]
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stp xzr,xzr,[sp,#48]
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ldp x19,x20,[x29,#16]
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add sp,sp,#64
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ldp x21,x22,[x29,#32]
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ldp x23,x24,[x29,#48]
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ldp x25,x26,[x29,#64]
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ldp x27,x28,[x29,#80]
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ldp x29,x30,[sp],#96
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ret
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.size ChaCha20_ctr32,.-ChaCha20_ctr32
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___
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{{{
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my ($A0,$B0,$C0,$D0,$A1,$B1,$C1,$D1,$A2,$B2,$C2,$D2,$T0,$T1,$T2,$T3) =
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map("v$_.4s",(0..7,16..23));
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my (@K)=map("v$_.4s",(24..30));
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my $ONE="v31.4s";
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sub NEONROUND {
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my $odd = pop;
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my ($a,$b,$c,$d,$t)=@_;
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(
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"&add ('$a','$a','$b')",
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"&eor ('$d','$d','$a')",
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"&rev32_16 ('$d','$d')", # vrot ($d,16)
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"&add ('$c','$c','$d')",
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"&eor ('$t','$b','$c')",
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"&ushr ('$b','$t',20)",
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"&sli ('$b','$t',12)",
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"&add ('$a','$a','$b')",
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"&eor ('$t','$d','$a')",
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"&ushr ('$d','$t',24)",
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"&sli ('$d','$t',8)",
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"&add ('$c','$c','$d')",
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"&eor ('$t','$b','$c')",
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"&ushr ('$b','$t',25)",
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"&sli ('$b','$t',7)",
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"&ext ('$c','$c','$c',8)",
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"&ext ('$d','$d','$d',$odd?4:12)",
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"&ext ('$b','$b','$b',$odd?12:4)"
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);
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}
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$code.=<<___;
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.type ChaCha20_neon,%function
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.align 5
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ChaCha20_neon:
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stp x29,x30,[sp,#-96]!
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add x29,sp,#0
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adr @x[0],.Lsigma
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stp x19,x20,[sp,#16]
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stp x21,x22,[sp,#32]
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stp x23,x24,[sp,#48]
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stp x25,x26,[sp,#64]
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stp x27,x28,[sp,#80]
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cmp $len,#512
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b.hs .L512_or_more_neon
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sub sp,sp,#64
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ldp @d[0],@d[1],[@x[0]] // load sigma
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ld1 {@K[0]},[@x[0]],#16
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ldp @d[2],@d[3],[$key] // load key
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ldp @d[4],@d[5],[$key,#16]
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ld1 {@K[1],@K[2]},[$key]
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ldp @d[6],@d[7],[$ctr] // load counter
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ld1 {@K[3]},[$ctr]
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ld1 {$ONE},[@x[0]]
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#ifdef __ARMEB__
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rev64 @K[0],@K[0]
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ror @d[2],@d[2],#32
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ror @d[3],@d[3],#32
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ror @d[4],@d[4],#32
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ror @d[5],@d[5],#32
|
|
ror @d[6],@d[6],#32
|
|
ror @d[7],@d[7],#32
|
|
#endif
|
|
add @K[3],@K[3],$ONE // += 1
|
|
add @K[4],@K[3],$ONE
|
|
add @K[5],@K[4],$ONE
|
|
shl $ONE,$ONE,#2 // 1 -> 4
|
|
|
|
.Loop_outer_neon:
|
|
mov.32 @x[0],@d[0] // unpack key block
|
|
lsr @x[1],@d[0],#32
|
|
mov $A0,@K[0]
|
|
mov.32 @x[2],@d[1]
|
|
lsr @x[3],@d[1],#32
|
|
mov $A1,@K[0]
|
|
mov.32 @x[4],@d[2]
|
|
lsr @x[5],@d[2],#32
|
|
mov $A2,@K[0]
|
|
mov.32 @x[6],@d[3]
|
|
mov $B0,@K[1]
|
|
lsr @x[7],@d[3],#32
|
|
mov $B1,@K[1]
|
|
mov.32 @x[8],@d[4]
|
|
mov $B2,@K[1]
|
|
lsr @x[9],@d[4],#32
|
|
mov $D0,@K[3]
|
|
mov.32 @x[10],@d[5]
|
|
mov $D1,@K[4]
|
|
lsr @x[11],@d[5],#32
|
|
mov $D2,@K[5]
|
|
mov.32 @x[12],@d[6]
|
|
mov $C0,@K[2]
|
|
lsr @x[13],@d[6],#32
|
|
mov $C1,@K[2]
|
|
mov.32 @x[14],@d[7]
|
|
mov $C2,@K[2]
|
|
lsr @x[15],@d[7],#32
|
|
|
|
mov $ctr,#10
|
|
subs $len,$len,#256
|
|
.Loop_neon:
|
|
sub $ctr,$ctr,#1
|
|
___
|
|
my @thread0=&NEONROUND($A0,$B0,$C0,$D0,$T0,0);
|
|
my @thread1=&NEONROUND($A1,$B1,$C1,$D1,$T1,0);
|
|
my @thread2=&NEONROUND($A2,$B2,$C2,$D2,$T2,0);
|
|
my @thread3=&ROUND(0,4,8,12);
|
|
|
|
foreach (@thread0) {
|
|
eval; eval(shift(@thread3));
|
|
eval(shift(@thread1)); eval(shift(@thread3));
|
|
eval(shift(@thread2)); eval(shift(@thread3));
|
|
}
|
|
|
|
@thread0=&NEONROUND($A0,$B0,$C0,$D0,$T0,1);
|
|
@thread1=&NEONROUND($A1,$B1,$C1,$D1,$T1,1);
|
|
@thread2=&NEONROUND($A2,$B2,$C2,$D2,$T2,1);
|
|
@thread3=&ROUND(0,5,10,15);
|
|
|
|
foreach (@thread0) {
|
|
eval; eval(shift(@thread3));
|
|
eval(shift(@thread1)); eval(shift(@thread3));
|
|
eval(shift(@thread2)); eval(shift(@thread3));
|
|
}
|
|
$code.=<<___;
|
|
cbnz $ctr,.Loop_neon
|
|
|
|
add.32 @x[0],@x[0],@d[0] // accumulate key block
|
|
add $A0,$A0,@K[0]
|
|
add @x[1],@x[1],@d[0],lsr#32
|
|
add $A1,$A1,@K[0]
|
|
add.32 @x[2],@x[2],@d[1]
|
|
add $A2,$A2,@K[0]
|
|
add @x[3],@x[3],@d[1],lsr#32
|
|
add $C0,$C0,@K[2]
|
|
add.32 @x[4],@x[4],@d[2]
|
|
add $C1,$C1,@K[2]
|
|
add @x[5],@x[5],@d[2],lsr#32
|
|
add $C2,$C2,@K[2]
|
|
add.32 @x[6],@x[6],@d[3]
|
|
add $D0,$D0,@K[3]
|
|
add @x[7],@x[7],@d[3],lsr#32
|
|
add.32 @x[8],@x[8],@d[4]
|
|
add $D1,$D1,@K[4]
|
|
add @x[9],@x[9],@d[4],lsr#32
|
|
add.32 @x[10],@x[10],@d[5]
|
|
add $D2,$D2,@K[5]
|
|
add @x[11],@x[11],@d[5],lsr#32
|
|
add.32 @x[12],@x[12],@d[6]
|
|
add $B0,$B0,@K[1]
|
|
add @x[13],@x[13],@d[6],lsr#32
|
|
add.32 @x[14],@x[14],@d[7]
|
|
add $B1,$B1,@K[1]
|
|
add @x[15],@x[15],@d[7],lsr#32
|
|
add $B2,$B2,@K[1]
|
|
|
|
b.lo .Ltail_neon
|
|
|
|
add @x[0],@x[0],@x[1],lsl#32 // pack
|
|
add @x[2],@x[2],@x[3],lsl#32
|
|
ldp @x[1],@x[3],[$inp,#0] // load input
|
|
add @x[4],@x[4],@x[5],lsl#32
|
|
add @x[6],@x[6],@x[7],lsl#32
|
|
ldp @x[5],@x[7],[$inp,#16]
|
|
add @x[8],@x[8],@x[9],lsl#32
|
|
add @x[10],@x[10],@x[11],lsl#32
|
|
ldp @x[9],@x[11],[$inp,#32]
|
|
add @x[12],@x[12],@x[13],lsl#32
|
|
add @x[14],@x[14],@x[15],lsl#32
|
|
ldp @x[13],@x[15],[$inp,#48]
|
|
add $inp,$inp,#64
|
|
#ifdef __ARMEB__
|
|
rev @x[0],@x[0]
|
|
rev @x[2],@x[2]
|
|
rev @x[4],@x[4]
|
|
rev @x[6],@x[6]
|
|
rev @x[8],@x[8]
|
|
rev @x[10],@x[10]
|
|
rev @x[12],@x[12]
|
|
rev @x[14],@x[14]
|
|
#endif
|
|
ld1.8 {$T0-$T3},[$inp],#64
|
|
eor @x[0],@x[0],@x[1]
|
|
eor @x[2],@x[2],@x[3]
|
|
eor @x[4],@x[4],@x[5]
|
|
eor @x[6],@x[6],@x[7]
|
|
eor @x[8],@x[8],@x[9]
|
|
eor $A0,$A0,$T0
|
|
eor @x[10],@x[10],@x[11]
|
|
eor $B0,$B0,$T1
|
|
eor @x[12],@x[12],@x[13]
|
|
eor $C0,$C0,$T2
|
|
eor @x[14],@x[14],@x[15]
|
|
eor $D0,$D0,$T3
|
|
ld1.8 {$T0-$T3},[$inp],#64
|
|
|
|
stp @x[0],@x[2],[$out,#0] // store output
|
|
add @d[6],@d[6],#4 // increment counter
|
|
stp @x[4],@x[6],[$out,#16]
|
|
add @K[3],@K[3],$ONE // += 4
|
|
stp @x[8],@x[10],[$out,#32]
|
|
add @K[4],@K[4],$ONE
|
|
stp @x[12],@x[14],[$out,#48]
|
|
add @K[5],@K[5],$ONE
|
|
add $out,$out,#64
|
|
|
|
st1.8 {$A0-$D0},[$out],#64
|
|
ld1.8 {$A0-$D0},[$inp],#64
|
|
|
|
eor $A1,$A1,$T0
|
|
eor $B1,$B1,$T1
|
|
eor $C1,$C1,$T2
|
|
eor $D1,$D1,$T3
|
|
st1.8 {$A1-$D1},[$out],#64
|
|
|
|
eor $A2,$A2,$A0
|
|
eor $B2,$B2,$B0
|
|
eor $C2,$C2,$C0
|
|
eor $D2,$D2,$D0
|
|
st1.8 {$A2-$D2},[$out],#64
|
|
|
|
b.hi .Loop_outer_neon
|
|
|
|
ldp x19,x20,[x29,#16]
|
|
add sp,sp,#64
|
|
ldp x21,x22,[x29,#32]
|
|
ldp x23,x24,[x29,#48]
|
|
ldp x25,x26,[x29,#64]
|
|
ldp x27,x28,[x29,#80]
|
|
ldp x29,x30,[sp],#96
|
|
ret
|
|
|
|
.Ltail_neon:
|
|
add $len,$len,#256
|
|
cmp $len,#64
|
|
b.lo .Less_than_64
|
|
|
|
add @x[0],@x[0],@x[1],lsl#32 // pack
|
|
add @x[2],@x[2],@x[3],lsl#32
|
|
ldp @x[1],@x[3],[$inp,#0] // load input
|
|
add @x[4],@x[4],@x[5],lsl#32
|
|
add @x[6],@x[6],@x[7],lsl#32
|
|
ldp @x[5],@x[7],[$inp,#16]
|
|
add @x[8],@x[8],@x[9],lsl#32
|
|
add @x[10],@x[10],@x[11],lsl#32
|
|
ldp @x[9],@x[11],[$inp,#32]
|
|
add @x[12],@x[12],@x[13],lsl#32
|
|
add @x[14],@x[14],@x[15],lsl#32
|
|
ldp @x[13],@x[15],[$inp,#48]
|
|
add $inp,$inp,#64
|
|
#ifdef __ARMEB__
|
|
rev @x[0],@x[0]
|
|
rev @x[2],@x[2]
|
|
rev @x[4],@x[4]
|
|
rev @x[6],@x[6]
|
|
rev @x[8],@x[8]
|
|
rev @x[10],@x[10]
|
|
rev @x[12],@x[12]
|
|
rev @x[14],@x[14]
|
|
#endif
|
|
eor @x[0],@x[0],@x[1]
|
|
eor @x[2],@x[2],@x[3]
|
|
eor @x[4],@x[4],@x[5]
|
|
eor @x[6],@x[6],@x[7]
|
|
eor @x[8],@x[8],@x[9]
|
|
eor @x[10],@x[10],@x[11]
|
|
eor @x[12],@x[12],@x[13]
|
|
eor @x[14],@x[14],@x[15]
|
|
|
|
stp @x[0],@x[2],[$out,#0] // store output
|
|
add @d[6],@d[6],#4 // increment counter
|
|
stp @x[4],@x[6],[$out,#16]
|
|
stp @x[8],@x[10],[$out,#32]
|
|
stp @x[12],@x[14],[$out,#48]
|
|
add $out,$out,#64
|
|
b.eq .Ldone_neon
|
|
sub $len,$len,#64
|
|
cmp $len,#64
|
|
b.lo .Less_than_128
|
|
|
|
ld1.8 {$T0-$T3},[$inp],#64
|
|
eor $A0,$A0,$T0
|
|
eor $B0,$B0,$T1
|
|
eor $C0,$C0,$T2
|
|
eor $D0,$D0,$T3
|
|
st1.8 {$A0-$D0},[$out],#64
|
|
b.eq .Ldone_neon
|
|
sub $len,$len,#64
|
|
cmp $len,#64
|
|
b.lo .Less_than_192
|
|
|
|
ld1.8 {$T0-$T3},[$inp],#64
|
|
eor $A1,$A1,$T0
|
|
eor $B1,$B1,$T1
|
|
eor $C1,$C1,$T2
|
|
eor $D1,$D1,$T3
|
|
st1.8 {$A1-$D1},[$out],#64
|
|
b.eq .Ldone_neon
|
|
sub $len,$len,#64
|
|
|
|
st1.8 {$A2-$D2},[sp]
|
|
b .Last_neon
|
|
|
|
.Less_than_128:
|
|
st1.8 {$A0-$D0},[sp]
|
|
b .Last_neon
|
|
.Less_than_192:
|
|
st1.8 {$A1-$D1},[sp]
|
|
b .Last_neon
|
|
|
|
.align 4
|
|
.Last_neon:
|
|
sub $out,$out,#1
|
|
add $inp,$inp,$len
|
|
add $out,$out,$len
|
|
add $ctr,sp,$len
|
|
neg $len,$len
|
|
|
|
.Loop_tail_neon:
|
|
ldrb w10,[$inp,$len]
|
|
ldrb w11,[$ctr,$len]
|
|
add $len,$len,#1
|
|
eor w10,w10,w11
|
|
strb w10,[$out,$len]
|
|
cbnz $len,.Loop_tail_neon
|
|
|
|
stp xzr,xzr,[sp,#0]
|
|
stp xzr,xzr,[sp,#16]
|
|
stp xzr,xzr,[sp,#32]
|
|
stp xzr,xzr,[sp,#48]
|
|
|
|
.Ldone_neon:
|
|
ldp x19,x20,[x29,#16]
|
|
add sp,sp,#64
|
|
ldp x21,x22,[x29,#32]
|
|
ldp x23,x24,[x29,#48]
|
|
ldp x25,x26,[x29,#64]
|
|
ldp x27,x28,[x29,#80]
|
|
ldp x29,x30,[sp],#96
|
|
ret
|
|
.size ChaCha20_neon,.-ChaCha20_neon
|
|
___
|
|
{
|
|
my ($T0,$T1,$T2,$T3,$T4,$T5)=@K;
|
|
my ($A0,$B0,$C0,$D0,$A1,$B1,$C1,$D1,$A2,$B2,$C2,$D2,
|
|
$A3,$B3,$C3,$D3,$A4,$B4,$C4,$D4,$A5,$B5,$C5,$D5) = map("v$_.4s",(0..23));
|
|
|
|
$code.=<<___;
|
|
.type ChaCha20_512_neon,%function
|
|
.align 5
|
|
ChaCha20_512_neon:
|
|
stp x29,x30,[sp,#-96]!
|
|
add x29,sp,#0
|
|
|
|
adr @x[0],.Lsigma
|
|
stp x19,x20,[sp,#16]
|
|
stp x21,x22,[sp,#32]
|
|
stp x23,x24,[sp,#48]
|
|
stp x25,x26,[sp,#64]
|
|
stp x27,x28,[sp,#80]
|
|
|
|
.L512_or_more_neon:
|
|
sub sp,sp,#128+64
|
|
|
|
ldp @d[0],@d[1],[@x[0]] // load sigma
|
|
ld1 {@K[0]},[@x[0]],#16
|
|
ldp @d[2],@d[3],[$key] // load key
|
|
ldp @d[4],@d[5],[$key,#16]
|
|
ld1 {@K[1],@K[2]},[$key]
|
|
ldp @d[6],@d[7],[$ctr] // load counter
|
|
ld1 {@K[3]},[$ctr]
|
|
ld1 {$ONE},[@x[0]]
|
|
#ifdef __ARMEB__
|
|
rev64 @K[0],@K[0]
|
|
ror @d[2],@d[2],#32
|
|
ror @d[3],@d[3],#32
|
|
ror @d[4],@d[4],#32
|
|
ror @d[5],@d[5],#32
|
|
ror @d[6],@d[6],#32
|
|
ror @d[7],@d[7],#32
|
|
#endif
|
|
add @K[3],@K[3],$ONE // += 1
|
|
stp @K[0],@K[1],[sp,#0] // off-load key block, invariant part
|
|
add @K[3],@K[3],$ONE // not typo
|
|
str @K[2],[sp,#32]
|
|
add @K[4],@K[3],$ONE
|
|
add @K[5],@K[4],$ONE
|
|
add @K[6],@K[5],$ONE
|
|
shl $ONE,$ONE,#2 // 1 -> 4
|
|
|
|
stp d8,d9,[sp,#128+0] // meet ABI requirements
|
|
stp d10,d11,[sp,#128+16]
|
|
stp d12,d13,[sp,#128+32]
|
|
stp d14,d15,[sp,#128+48]
|
|
|
|
sub $len,$len,#512 // not typo
|
|
|
|
.Loop_outer_512_neon:
|
|
mov $A0,@K[0]
|
|
mov $A1,@K[0]
|
|
mov $A2,@K[0]
|
|
mov $A3,@K[0]
|
|
mov $A4,@K[0]
|
|
mov $A5,@K[0]
|
|
mov $B0,@K[1]
|
|
mov.32 @x[0],@d[0] // unpack key block
|
|
mov $B1,@K[1]
|
|
lsr @x[1],@d[0],#32
|
|
mov $B2,@K[1]
|
|
mov.32 @x[2],@d[1]
|
|
mov $B3,@K[1]
|
|
lsr @x[3],@d[1],#32
|
|
mov $B4,@K[1]
|
|
mov.32 @x[4],@d[2]
|
|
mov $B5,@K[1]
|
|
lsr @x[5],@d[2],#32
|
|
mov $D0,@K[3]
|
|
mov.32 @x[6],@d[3]
|
|
mov $D1,@K[4]
|
|
lsr @x[7],@d[3],#32
|
|
mov $D2,@K[5]
|
|
mov.32 @x[8],@d[4]
|
|
mov $D3,@K[6]
|
|
lsr @x[9],@d[4],#32
|
|
mov $C0,@K[2]
|
|
mov.32 @x[10],@d[5]
|
|
mov $C1,@K[2]
|
|
lsr @x[11],@d[5],#32
|
|
add $D4,$D0,$ONE // +4
|
|
mov.32 @x[12],@d[6]
|
|
add $D5,$D1,$ONE // +4
|
|
lsr @x[13],@d[6],#32
|
|
mov $C2,@K[2]
|
|
mov.32 @x[14],@d[7]
|
|
mov $C3,@K[2]
|
|
lsr @x[15],@d[7],#32
|
|
mov $C4,@K[2]
|
|
stp @K[3],@K[4],[sp,#48] // off-load key block, variable part
|
|
mov $C5,@K[2]
|
|
str @K[5],[sp,#80]
|
|
|
|
mov $ctr,#5
|
|
subs $len,$len,#512
|
|
.Loop_upper_neon:
|
|
sub $ctr,$ctr,#1
|
|
___
|
|
my @thread0=&NEONROUND($A0,$B0,$C0,$D0,$T0,0);
|
|
my @thread1=&NEONROUND($A1,$B1,$C1,$D1,$T1,0);
|
|
my @thread2=&NEONROUND($A2,$B2,$C2,$D2,$T2,0);
|
|
my @thread3=&NEONROUND($A3,$B3,$C3,$D3,$T3,0);
|
|
my @thread4=&NEONROUND($A4,$B4,$C4,$D4,$T4,0);
|
|
my @thread5=&NEONROUND($A5,$B5,$C5,$D5,$T5,0);
|
|
my @thread67=(&ROUND(0,4,8,12),&ROUND(0,5,10,15));
|
|
my $diff = ($#thread0+1)*6 - $#thread67 - 1;
|
|
my $i = 0;
|
|
|
|
foreach (@thread0) {
|
|
eval; eval(shift(@thread67));
|
|
eval(shift(@thread1)); eval(shift(@thread67));
|
|
eval(shift(@thread2)); eval(shift(@thread67));
|
|
eval(shift(@thread3)); eval(shift(@thread67));
|
|
eval(shift(@thread4)); eval(shift(@thread67));
|
|
eval(shift(@thread5)); eval(shift(@thread67));
|
|
}
|
|
|
|
@thread0=&NEONROUND($A0,$B0,$C0,$D0,$T0,1);
|
|
@thread1=&NEONROUND($A1,$B1,$C1,$D1,$T1,1);
|
|
@thread2=&NEONROUND($A2,$B2,$C2,$D2,$T2,1);
|
|
@thread3=&NEONROUND($A3,$B3,$C3,$D3,$T3,1);
|
|
@thread4=&NEONROUND($A4,$B4,$C4,$D4,$T4,1);
|
|
@thread5=&NEONROUND($A5,$B5,$C5,$D5,$T5,1);
|
|
@thread67=(&ROUND(0,4,8,12),&ROUND(0,5,10,15));
|
|
|
|
foreach (@thread0) {
|
|
eval; eval(shift(@thread67));
|
|
eval(shift(@thread1)); eval(shift(@thread67));
|
|
eval(shift(@thread2)); eval(shift(@thread67));
|
|
eval(shift(@thread3)); eval(shift(@thread67));
|
|
eval(shift(@thread4)); eval(shift(@thread67));
|
|
eval(shift(@thread5)); eval(shift(@thread67));
|
|
}
|
|
$code.=<<___;
|
|
cbnz $ctr,.Loop_upper_neon
|
|
|
|
add.32 @x[0],@x[0],@d[0] // accumulate key block
|
|
add @x[1],@x[1],@d[0],lsr#32
|
|
add.32 @x[2],@x[2],@d[1]
|
|
add @x[3],@x[3],@d[1],lsr#32
|
|
add.32 @x[4],@x[4],@d[2]
|
|
add @x[5],@x[5],@d[2],lsr#32
|
|
add.32 @x[6],@x[6],@d[3]
|
|
add @x[7],@x[7],@d[3],lsr#32
|
|
add.32 @x[8],@x[8],@d[4]
|
|
add @x[9],@x[9],@d[4],lsr#32
|
|
add.32 @x[10],@x[10],@d[5]
|
|
add @x[11],@x[11],@d[5],lsr#32
|
|
add.32 @x[12],@x[12],@d[6]
|
|
add @x[13],@x[13],@d[6],lsr#32
|
|
add.32 @x[14],@x[14],@d[7]
|
|
add @x[15],@x[15],@d[7],lsr#32
|
|
|
|
add @x[0],@x[0],@x[1],lsl#32 // pack
|
|
add @x[2],@x[2],@x[3],lsl#32
|
|
ldp @x[1],@x[3],[$inp,#0] // load input
|
|
add @x[4],@x[4],@x[5],lsl#32
|
|
add @x[6],@x[6],@x[7],lsl#32
|
|
ldp @x[5],@x[7],[$inp,#16]
|
|
add @x[8],@x[8],@x[9],lsl#32
|
|
add @x[10],@x[10],@x[11],lsl#32
|
|
ldp @x[9],@x[11],[$inp,#32]
|
|
add @x[12],@x[12],@x[13],lsl#32
|
|
add @x[14],@x[14],@x[15],lsl#32
|
|
ldp @x[13],@x[15],[$inp,#48]
|
|
add $inp,$inp,#64
|
|
#ifdef __ARMEB__
|
|
rev @x[0],@x[0]
|
|
rev @x[2],@x[2]
|
|
rev @x[4],@x[4]
|
|
rev @x[6],@x[6]
|
|
rev @x[8],@x[8]
|
|
rev @x[10],@x[10]
|
|
rev @x[12],@x[12]
|
|
rev @x[14],@x[14]
|
|
#endif
|
|
eor @x[0],@x[0],@x[1]
|
|
eor @x[2],@x[2],@x[3]
|
|
eor @x[4],@x[4],@x[5]
|
|
eor @x[6],@x[6],@x[7]
|
|
eor @x[8],@x[8],@x[9]
|
|
eor @x[10],@x[10],@x[11]
|
|
eor @x[12],@x[12],@x[13]
|
|
eor @x[14],@x[14],@x[15]
|
|
|
|
stp @x[0],@x[2],[$out,#0] // store output
|
|
add @d[6],@d[6],#1 // increment counter
|
|
mov.32 @x[0],@d[0] // unpack key block
|
|
lsr @x[1],@d[0],#32
|
|
stp @x[4],@x[6],[$out,#16]
|
|
mov.32 @x[2],@d[1]
|
|
lsr @x[3],@d[1],#32
|
|
stp @x[8],@x[10],[$out,#32]
|
|
mov.32 @x[4],@d[2]
|
|
lsr @x[5],@d[2],#32
|
|
stp @x[12],@x[14],[$out,#48]
|
|
add $out,$out,#64
|
|
mov.32 @x[6],@d[3]
|
|
lsr @x[7],@d[3],#32
|
|
mov.32 @x[8],@d[4]
|
|
lsr @x[9],@d[4],#32
|
|
mov.32 @x[10],@d[5]
|
|
lsr @x[11],@d[5],#32
|
|
mov.32 @x[12],@d[6]
|
|
lsr @x[13],@d[6],#32
|
|
mov.32 @x[14],@d[7]
|
|
lsr @x[15],@d[7],#32
|
|
|
|
mov $ctr,#5
|
|
.Loop_lower_neon:
|
|
sub $ctr,$ctr,#1
|
|
___
|
|
@thread0=&NEONROUND($A0,$B0,$C0,$D0,$T0,0);
|
|
@thread1=&NEONROUND($A1,$B1,$C1,$D1,$T1,0);
|
|
@thread2=&NEONROUND($A2,$B2,$C2,$D2,$T2,0);
|
|
@thread3=&NEONROUND($A3,$B3,$C3,$D3,$T3,0);
|
|
@thread4=&NEONROUND($A4,$B4,$C4,$D4,$T4,0);
|
|
@thread5=&NEONROUND($A5,$B5,$C5,$D5,$T5,0);
|
|
@thread67=(&ROUND(0,4,8,12),&ROUND(0,5,10,15));
|
|
|
|
foreach (@thread0) {
|
|
eval; eval(shift(@thread67));
|
|
eval(shift(@thread1)); eval(shift(@thread67));
|
|
eval(shift(@thread2)); eval(shift(@thread67));
|
|
eval(shift(@thread3)); eval(shift(@thread67));
|
|
eval(shift(@thread4)); eval(shift(@thread67));
|
|
eval(shift(@thread5)); eval(shift(@thread67));
|
|
}
|
|
|
|
@thread0=&NEONROUND($A0,$B0,$C0,$D0,$T0,1);
|
|
@thread1=&NEONROUND($A1,$B1,$C1,$D1,$T1,1);
|
|
@thread2=&NEONROUND($A2,$B2,$C2,$D2,$T2,1);
|
|
@thread3=&NEONROUND($A3,$B3,$C3,$D3,$T3,1);
|
|
@thread4=&NEONROUND($A4,$B4,$C4,$D4,$T4,1);
|
|
@thread5=&NEONROUND($A5,$B5,$C5,$D5,$T5,1);
|
|
@thread67=(&ROUND(0,4,8,12),&ROUND(0,5,10,15));
|
|
|
|
foreach (@thread0) {
|
|
eval; eval(shift(@thread67));
|
|
eval(shift(@thread1)); eval(shift(@thread67));
|
|
eval(shift(@thread2)); eval(shift(@thread67));
|
|
eval(shift(@thread3)); eval(shift(@thread67));
|
|
eval(shift(@thread4)); eval(shift(@thread67));
|
|
eval(shift(@thread5)); eval(shift(@thread67));
|
|
}
|
|
$code.=<<___;
|
|
cbnz $ctr,.Loop_lower_neon
|
|
|
|
add.32 @x[0],@x[0],@d[0] // accumulate key block
|
|
ldp @K[0],@K[1],[sp,#0]
|
|
add @x[1],@x[1],@d[0],lsr#32
|
|
ldp @K[2],@K[3],[sp,#32]
|
|
add.32 @x[2],@x[2],@d[1]
|
|
ldp @K[4],@K[5],[sp,#64]
|
|
add @x[3],@x[3],@d[1],lsr#32
|
|
add $A0,$A0,@K[0]
|
|
add.32 @x[4],@x[4],@d[2]
|
|
add $A1,$A1,@K[0]
|
|
add @x[5],@x[5],@d[2],lsr#32
|
|
add $A2,$A2,@K[0]
|
|
add.32 @x[6],@x[6],@d[3]
|
|
add $A3,$A3,@K[0]
|
|
add @x[7],@x[7],@d[3],lsr#32
|
|
add $A4,$A4,@K[0]
|
|
add.32 @x[8],@x[8],@d[4]
|
|
add $A5,$A5,@K[0]
|
|
add @x[9],@x[9],@d[4],lsr#32
|
|
add $C0,$C0,@K[2]
|
|
add.32 @x[10],@x[10],@d[5]
|
|
add $C1,$C1,@K[2]
|
|
add @x[11],@x[11],@d[5],lsr#32
|
|
add $C2,$C2,@K[2]
|
|
add.32 @x[12],@x[12],@d[6]
|
|
add $C3,$C3,@K[2]
|
|
add @x[13],@x[13],@d[6],lsr#32
|
|
add $C4,$C4,@K[2]
|
|
add.32 @x[14],@x[14],@d[7]
|
|
add $C5,$C5,@K[2]
|
|
add @x[15],@x[15],@d[7],lsr#32
|
|
add $D4,$D4,$ONE // +4
|
|
add @x[0],@x[0],@x[1],lsl#32 // pack
|
|
add $D5,$D5,$ONE // +4
|
|
add @x[2],@x[2],@x[3],lsl#32
|
|
add $D0,$D0,@K[3]
|
|
ldp @x[1],@x[3],[$inp,#0] // load input
|
|
add $D1,$D1,@K[4]
|
|
add @x[4],@x[4],@x[5],lsl#32
|
|
add $D2,$D2,@K[5]
|
|
add @x[6],@x[6],@x[7],lsl#32
|
|
add $D3,$D3,@K[6]
|
|
ldp @x[5],@x[7],[$inp,#16]
|
|
add $D4,$D4,@K[3]
|
|
add @x[8],@x[8],@x[9],lsl#32
|
|
add $D5,$D5,@K[4]
|
|
add @x[10],@x[10],@x[11],lsl#32
|
|
add $B0,$B0,@K[1]
|
|
ldp @x[9],@x[11],[$inp,#32]
|
|
add $B1,$B1,@K[1]
|
|
add @x[12],@x[12],@x[13],lsl#32
|
|
add $B2,$B2,@K[1]
|
|
add @x[14],@x[14],@x[15],lsl#32
|
|
add $B3,$B3,@K[1]
|
|
ldp @x[13],@x[15],[$inp,#48]
|
|
add $B4,$B4,@K[1]
|
|
add $inp,$inp,#64
|
|
add $B5,$B5,@K[1]
|
|
|
|
#ifdef __ARMEB__
|
|
rev @x[0],@x[0]
|
|
rev @x[2],@x[2]
|
|
rev @x[4],@x[4]
|
|
rev @x[6],@x[6]
|
|
rev @x[8],@x[8]
|
|
rev @x[10],@x[10]
|
|
rev @x[12],@x[12]
|
|
rev @x[14],@x[14]
|
|
#endif
|
|
ld1.8 {$T0-$T3},[$inp],#64
|
|
eor @x[0],@x[0],@x[1]
|
|
eor @x[2],@x[2],@x[3]
|
|
eor @x[4],@x[4],@x[5]
|
|
eor @x[6],@x[6],@x[7]
|
|
eor @x[8],@x[8],@x[9]
|
|
eor $A0,$A0,$T0
|
|
eor @x[10],@x[10],@x[11]
|
|
eor $B0,$B0,$T1
|
|
eor @x[12],@x[12],@x[13]
|
|
eor $C0,$C0,$T2
|
|
eor @x[14],@x[14],@x[15]
|
|
eor $D0,$D0,$T3
|
|
ld1.8 {$T0-$T3},[$inp],#64
|
|
|
|
stp @x[0],@x[2],[$out,#0] // store output
|
|
add @d[6],@d[6],#7 // increment counter
|
|
stp @x[4],@x[6],[$out,#16]
|
|
stp @x[8],@x[10],[$out,#32]
|
|
stp @x[12],@x[14],[$out,#48]
|
|
add $out,$out,#64
|
|
st1.8 {$A0-$D0},[$out],#64
|
|
|
|
ld1.8 {$A0-$D0},[$inp],#64
|
|
eor $A1,$A1,$T0
|
|
eor $B1,$B1,$T1
|
|
eor $C1,$C1,$T2
|
|
eor $D1,$D1,$T3
|
|
st1.8 {$A1-$D1},[$out],#64
|
|
|
|
ld1.8 {$A1-$D1},[$inp],#64
|
|
eor $A2,$A2,$A0
|
|
ldp @K[0],@K[1],[sp,#0]
|
|
eor $B2,$B2,$B0
|
|
ldp @K[2],@K[3],[sp,#32]
|
|
eor $C2,$C2,$C0
|
|
eor $D2,$D2,$D0
|
|
st1.8 {$A2-$D2},[$out],#64
|
|
|
|
ld1.8 {$A2-$D2},[$inp],#64
|
|
eor $A3,$A3,$A1
|
|
eor $B3,$B3,$B1
|
|
eor $C3,$C3,$C1
|
|
eor $D3,$D3,$D1
|
|
st1.8 {$A3-$D3},[$out],#64
|
|
|
|
ld1.8 {$A3-$D3},[$inp],#64
|
|
eor $A4,$A4,$A2
|
|
eor $B4,$B4,$B2
|
|
eor $C4,$C4,$C2
|
|
eor $D4,$D4,$D2
|
|
st1.8 {$A4-$D4},[$out],#64
|
|
|
|
shl $A0,$ONE,#1 // 4 -> 8
|
|
eor $A5,$A5,$A3
|
|
eor $B5,$B5,$B3
|
|
eor $C5,$C5,$C3
|
|
eor $D5,$D5,$D3
|
|
st1.8 {$A5-$D5},[$out],#64
|
|
|
|
add @K[3],@K[3],$A0 // += 8
|
|
add @K[4],@K[4],$A0
|
|
add @K[5],@K[5],$A0
|
|
add @K[6],@K[6],$A0
|
|
|
|
b.hs .Loop_outer_512_neon
|
|
|
|
adds $len,$len,#512
|
|
ushr $A0,$ONE,#2 // 4 -> 1
|
|
|
|
ldp d8,d9,[sp,#128+0] // meet ABI requirements
|
|
ldp d10,d11,[sp,#128+16]
|
|
ldp d12,d13,[sp,#128+32]
|
|
ldp d14,d15,[sp,#128+48]
|
|
|
|
stp @K[0],$ONE,[sp,#0] // wipe off-load area
|
|
stp @K[0],$ONE,[sp,#32]
|
|
stp @K[0],$ONE,[sp,#64]
|
|
|
|
b.eq .Ldone_512_neon
|
|
|
|
cmp $len,#192
|
|
sub @K[3],@K[3],$A0 // -= 1
|
|
sub @K[4],@K[4],$A0
|
|
sub @K[5],@K[5],$A0
|
|
add sp,sp,#128
|
|
b.hs .Loop_outer_neon
|
|
|
|
eor @K[1],@K[1],@K[1]
|
|
eor @K[2],@K[2],@K[2]
|
|
eor @K[3],@K[3],@K[3]
|
|
eor @K[4],@K[4],@K[4]
|
|
eor @K[5],@K[5],@K[5]
|
|
eor @K[6],@K[6],@K[6]
|
|
b .Loop_outer
|
|
|
|
.Ldone_512_neon:
|
|
ldp x19,x20,[x29,#16]
|
|
add sp,sp,#128+64
|
|
ldp x21,x22,[x29,#32]
|
|
ldp x23,x24,[x29,#48]
|
|
ldp x25,x26,[x29,#64]
|
|
ldp x27,x28,[x29,#80]
|
|
ldp x29,x30,[sp],#96
|
|
ret
|
|
.size ChaCha20_512_neon,.-ChaCha20_512_neon
|
|
___
|
|
}
|
|
}}}
|
|
|
|
foreach (split("\n",$code)) {
|
|
s/\`([^\`]*)\`/eval $1/geo;
|
|
|
|
(s/\b([a-z]+)\.32\b/$1/ and (s/x([0-9]+)/w$1/g or 1)) or
|
|
(m/\b(eor|ext|mov)\b/ and (s/\.4s/\.16b/g or 1)) or
|
|
(s/\b((?:ld|st)1)\.8\b/$1/ and (s/\.4s/\.16b/g or 1)) or
|
|
(m/\b(ld|st)[rp]\b/ and (s/v([0-9]+)\.4s/q$1/g or 1)) or
|
|
(s/\brev32\.16\b/rev32/ and (s/\.4s/\.8h/g or 1));
|
|
|
|
#s/\bq([0-9]+)#(lo|hi)/sprintf "d%d",2*$1+($2 eq "hi")/geo;
|
|
|
|
print $_,"\n";
|
|
}
|
|
close STDOUT; # flush
|