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| #! /usr/bin/env perl
| # Copyright 2014-2020 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/.
| # ====================================================================
| #
| # SHA1 for ARMv8.
| #
| # Performance in cycles per processed byte and improvement coefficient
| # over code generated with "default" compiler:
| #
| # hardware-assisted software(*)
| # Apple A7 2.31 4.13 (+14%)
| # Cortex-A53 2.24 8.03 (+97%)
| # Cortex-A57 2.35 7.88 (+74%)
| # Denver 2.13 3.97 (+0%)(**)
| # X-Gene 8.80 (+200%)
| # Mongoose 2.05 6.50 (+160%)
| # Kryo 1.88 8.00 (+90%)
| #
| # (*) Software results are presented mostly for reference purposes.
| # (**) Keep in mind that Denver relies on binary translation, which
| # optimizes compiler output at run-time.
|
| $flavour = shift;
| $output = shift;
|
| $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
| ( $xlate="${dir}arm-xlate.pl" and -f $xlate ) or
| ( $xlate="${dir}../../perlasm/arm-xlate.pl" and -f $xlate) or
| die "can't locate arm-xlate.pl";
|
| open OUT,"| \"$^X\" $xlate $flavour $output";
| *STDOUT=*OUT;
|
| ($ctx,$inp,$num)=("x0","x1","x2");
| @Xw=map("w$_",(3..17,19));
| @Xx=map("x$_",(3..17,19));
| @V=($A,$B,$C,$D,$E)=map("w$_",(20..24));
| ($t0,$t1,$t2,$K)=map("w$_",(25..28));
|
|
| sub BODY_00_19 {
| my ($i,$a,$b,$c,$d,$e)=@_;
| my $j=($i+2)&15;
|
| $code.=<<___ if ($i<15 && !($i&1));
| lsr @Xx[$i+1],@Xx[$i],#32
| ___
| $code.=<<___ if ($i<14 && !($i&1));
| ldr @Xx[$i+2],[$inp,#`($i+2)*4-64`]
| ___
| $code.=<<___ if ($i<14 && ($i&1));
| #ifdef __ARMEB__
| ror @Xx[$i+1],@Xx[$i+1],#32
| #else
| rev32 @Xx[$i+1],@Xx[$i+1]
| #endif
| ___
| $code.=<<___ if ($i<14);
| bic $t0,$d,$b
| and $t1,$c,$b
| ror $t2,$a,#27
| add $d,$d,$K // future e+=K
| orr $t0,$t0,$t1
| add $e,$e,$t2 // e+=rot(a,5)
| ror $b,$b,#2
| add $d,$d,@Xw[($i+1)&15] // future e+=X[i]
| add $e,$e,$t0 // e+=F(b,c,d)
| ___
| $code.=<<___ if ($i==19);
| movz $K,#0xeba1
| movk $K,#0x6ed9,lsl#16
| ___
| $code.=<<___ if ($i>=14);
| eor @Xw[$j],@Xw[$j],@Xw[($j+2)&15]
| bic $t0,$d,$b
| and $t1,$c,$b
| ror $t2,$a,#27
| eor @Xw[$j],@Xw[$j],@Xw[($j+8)&15]
| add $d,$d,$K // future e+=K
| orr $t0,$t0,$t1
| add $e,$e,$t2 // e+=rot(a,5)
| eor @Xw[$j],@Xw[$j],@Xw[($j+13)&15]
| ror $b,$b,#2
| add $d,$d,@Xw[($i+1)&15] // future e+=X[i]
| add $e,$e,$t0 // e+=F(b,c,d)
| ror @Xw[$j],@Xw[$j],#31
| ___
| }
|
| sub BODY_40_59 {
| my ($i,$a,$b,$c,$d,$e)=@_;
| my $j=($i+2)&15;
|
| $code.=<<___ if ($i==59);
| movz $K,#0xc1d6
| movk $K,#0xca62,lsl#16
| ___
| $code.=<<___;
| orr $t0,$b,$c
| and $t1,$b,$c
| eor @Xw[$j],@Xw[$j],@Xw[($j+2)&15]
| ror $t2,$a,#27
| and $t0,$t0,$d
| add $d,$d,$K // future e+=K
| eor @Xw[$j],@Xw[$j],@Xw[($j+8)&15]
| add $e,$e,$t2 // e+=rot(a,5)
| orr $t0,$t0,$t1
| ror $b,$b,#2
| eor @Xw[$j],@Xw[$j],@Xw[($j+13)&15]
| add $d,$d,@Xw[($i+1)&15] // future e+=X[i]
| add $e,$e,$t0 // e+=F(b,c,d)
| ror @Xw[$j],@Xw[$j],#31
| ___
| }
|
| sub BODY_20_39 {
| my ($i,$a,$b,$c,$d,$e)=@_;
| my $j=($i+2)&15;
|
| $code.=<<___ if ($i==39);
| movz $K,#0xbcdc
| movk $K,#0x8f1b,lsl#16
| ___
| $code.=<<___ if ($i<78);
| eor @Xw[$j],@Xw[$j],@Xw[($j+2)&15]
| eor $t0,$d,$b
| ror $t2,$a,#27
| add $d,$d,$K // future e+=K
| eor @Xw[$j],@Xw[$j],@Xw[($j+8)&15]
| eor $t0,$t0,$c
| add $e,$e,$t2 // e+=rot(a,5)
| ror $b,$b,#2
| eor @Xw[$j],@Xw[$j],@Xw[($j+13)&15]
| add $d,$d,@Xw[($i+1)&15] // future e+=X[i]
| add $e,$e,$t0 // e+=F(b,c,d)
| ror @Xw[$j],@Xw[$j],#31
| ___
| $code.=<<___ if ($i==78);
| ldp @Xw[1],@Xw[2],[$ctx]
| eor $t0,$d,$b
| ror $t2,$a,#27
| add $d,$d,$K // future e+=K
| eor $t0,$t0,$c
| add $e,$e,$t2 // e+=rot(a,5)
| ror $b,$b,#2
| add $d,$d,@Xw[($i+1)&15] // future e+=X[i]
| add $e,$e,$t0 // e+=F(b,c,d)
| ___
| $code.=<<___ if ($i==79);
| ldp @Xw[3],@Xw[4],[$ctx,#8]
| eor $t0,$d,$b
| ror $t2,$a,#27
| eor $t0,$t0,$c
| add $e,$e,$t2 // e+=rot(a,5)
| ror $b,$b,#2
| ldr @Xw[5],[$ctx,#16]
| add $e,$e,$t0 // e+=F(b,c,d)
| ___
| }
|
| $code.=<<___;
| #include "arm_arch.h"
|
| .text
|
| .extern OPENSSL_armcap_P
| .hidden OPENSSL_armcap_P
| .globl sha1_block_data_order
| .type sha1_block_data_order,%function
| .align 6
| sha1_block_data_order:
| #ifdef __ILP32__
| ldrsw x16,.LOPENSSL_armcap_P
| #else
| ldr x16,.LOPENSSL_armcap_P
| #endif
| adr x17,.LOPENSSL_armcap_P
| add x16,x16,x17
| ldr w16,[x16]
| tst w16,#ARMV8_SHA1
| b.ne .Lv8_entry
|
| stp x29,x30,[sp,#-96]!
| add x29,sp,#0
| 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]
|
| ldp $A,$B,[$ctx]
| ldp $C,$D,[$ctx,#8]
| ldr $E,[$ctx,#16]
|
| .Loop:
| ldr @Xx[0],[$inp],#64
| movz $K,#0x7999
| sub $num,$num,#1
| movk $K,#0x5a82,lsl#16
| #ifdef __ARMEB__
| ror $Xx[0],@Xx[0],#32
| #else
| rev32 @Xx[0],@Xx[0]
| #endif
| add $E,$E,$K // warm it up
| add $E,$E,@Xw[0]
| ___
| for($i=0;$i<20;$i++) { &BODY_00_19($i,@V); unshift(@V,pop(@V)); }
| for(;$i<40;$i++) { &BODY_20_39($i,@V); unshift(@V,pop(@V)); }
| for(;$i<60;$i++) { &BODY_40_59($i,@V); unshift(@V,pop(@V)); }
| for(;$i<80;$i++) { &BODY_20_39($i,@V); unshift(@V,pop(@V)); }
| $code.=<<___;
| add $B,$B,@Xw[2]
| add $C,$C,@Xw[3]
| add $A,$A,@Xw[1]
| add $D,$D,@Xw[4]
| add $E,$E,@Xw[5]
| stp $A,$B,[$ctx]
| stp $C,$D,[$ctx,#8]
| str $E,[$ctx,#16]
| cbnz $num,.Loop
|
| ldp x19,x20,[sp,#16]
| ldp x21,x22,[sp,#32]
| ldp x23,x24,[sp,#48]
| ldp x25,x26,[sp,#64]
| ldp x27,x28,[sp,#80]
| ldr x29,[sp],#96
| ret
| .size sha1_block_data_order,.-sha1_block_data_order
| ___
| {{{
| my ($ABCD,$E,$E0,$E1)=map("v$_.16b",(0..3));
| my @MSG=map("v$_.16b",(4..7));
| my @Kxx=map("v$_.4s",(16..19));
| my ($W0,$W1)=("v20.4s","v21.4s");
| my $ABCD_SAVE="v22.16b";
|
| $code.=<<___;
| .type sha1_block_armv8,%function
| .align 6
| sha1_block_armv8:
| .Lv8_entry:
| stp x29,x30,[sp,#-16]!
| add x29,sp,#0
|
| adr x4,.Lconst
| eor $E,$E,$E
| ld1.32 {$ABCD},[$ctx],#16
| ld1.32 {$E}[0],[$ctx]
| sub $ctx,$ctx,#16
| ld1.32 {@Kxx[0]-@Kxx[3]},[x4]
|
| .Loop_hw:
| ld1 {@MSG[0]-@MSG[3]},[$inp],#64
| sub $num,$num,#1
| rev32 @MSG[0],@MSG[0]
| rev32 @MSG[1],@MSG[1]
|
| add.i32 $W0,@Kxx[0],@MSG[0]
| rev32 @MSG[2],@MSG[2]
| orr $ABCD_SAVE,$ABCD,$ABCD // offload
|
| add.i32 $W1,@Kxx[0],@MSG[1]
| rev32 @MSG[3],@MSG[3]
| sha1h $E1,$ABCD
| sha1c $ABCD,$E,$W0 // 0
| add.i32 $W0,@Kxx[$j],@MSG[2]
| sha1su0 @MSG[0],@MSG[1],@MSG[2]
| ___
| for ($j=0,$i=1;$i<20-3;$i++) {
| my $f=("c","p","m","p")[$i/5];
| $code.=<<___;
| sha1h $E0,$ABCD // $i
| sha1$f $ABCD,$E1,$W1
| add.i32 $W1,@Kxx[$j],@MSG[3]
| sha1su1 @MSG[0],@MSG[3]
| ___
| $code.=<<___ if ($i<20-4);
| sha1su0 @MSG[1],@MSG[2],@MSG[3]
| ___
| ($E0,$E1)=($E1,$E0); ($W0,$W1)=($W1,$W0);
| push(@MSG,shift(@MSG)); $j++ if ((($i+3)%5)==0);
| }
| $code.=<<___;
| sha1h $E0,$ABCD // $i
| sha1p $ABCD,$E1,$W1
| add.i32 $W1,@Kxx[$j],@MSG[3]
|
| sha1h $E1,$ABCD // 18
| sha1p $ABCD,$E0,$W0
|
| sha1h $E0,$ABCD // 19
| sha1p $ABCD,$E1,$W1
|
| add.i32 $E,$E,$E0
| add.i32 $ABCD,$ABCD,$ABCD_SAVE
|
| cbnz $num,.Loop_hw
|
| st1.32 {$ABCD},[$ctx],#16
| st1.32 {$E}[0],[$ctx]
|
| ldr x29,[sp],#16
| ret
| .size sha1_block_armv8,.-sha1_block_armv8
| .align 6
| .Lconst:
| .long 0x5a827999,0x5a827999,0x5a827999,0x5a827999 //K_00_19
| .long 0x6ed9eba1,0x6ed9eba1,0x6ed9eba1,0x6ed9eba1 //K_20_39
| .long 0x8f1bbcdc,0x8f1bbcdc,0x8f1bbcdc,0x8f1bbcdc //K_40_59
| .long 0xca62c1d6,0xca62c1d6,0xca62c1d6,0xca62c1d6 //K_60_79
| .LOPENSSL_armcap_P:
| #ifdef __ILP32__
| .long OPENSSL_armcap_P-.
| #else
| .quad OPENSSL_armcap_P-.
| #endif
| .asciz "SHA1 block transform for ARMv8, CRYPTOGAMS by <appro\@openssl.org>"
| .align 2
| ___
| }}}
|
| { my %opcode = (
| "sha1c" => 0x5e000000, "sha1p" => 0x5e001000,
| "sha1m" => 0x5e002000, "sha1su0" => 0x5e003000,
| "sha1h" => 0x5e280800, "sha1su1" => 0x5e281800 );
|
| sub unsha1 {
| my ($mnemonic,$arg)=@_;
|
| $arg =~ m/[qv]([0-9]+)[^,]*,\s*[qv]([0-9]+)[^,]*(?:,\s*[qv]([0-9]+))?/o
| &&
| sprintf ".inst\t0x%08x\t//%s %s",
| $opcode{$mnemonic}|$1|($2<<5)|($3<<16),
| $mnemonic,$arg;
| }
| }
|
| foreach(split("\n",$code)) {
|
| s/\`([^\`]*)\`/eval($1)/geo;
|
| s/\b(sha1\w+)\s+([qv].*)/unsha1($1,$2)/geo;
|
| s/\.\w?32\b//o and s/\.16b/\.4s/go;
| m/(ld|st)1[^\[]+\[0\]/o and s/\.4s/\.s/go;
|
| print $_,"\n";
| }
|
| close STDOUT or die "error closing STDOUT: $!";
|
|
