GHASH assembler: new ghash-sparcv9.pl module and saner descriptions.
diff --git a/crypto/modes/asm/ghash-ia64.pl b/crypto/modes/asm/ghash-ia64.pl index 86c08c6..3fd1446 100755 --- a/crypto/modes/asm/ghash-ia64.pl +++ b/crypto/modes/asm/ghash-ia64.pl
@@ -9,16 +9,16 @@ # # March 2010 # -# The module implements "4-bit" Galois field multiplication and -# streamed GHASH function. "4-bit" means that it uses 256 bytes -# per-key table [+128 bytes shared table]. Streamed GHASH performance -# was measured to be 6.35 cycles per processed byte on Itanium 2, -# which is >90% better than Microsoft compiler generated code. Well, -# the number should have been ~6.5. The deviation has everything to do -# with the way performance is measured, as difference between GCM and -# straightforward 128-bit counter mode. To anchor to something else -# sha1-ia64.pl module processes one byte in 6.0 cycles. On Itanium -# GHASH should run at ~8.5 cycles per byte. +# The module implements "4-bit" GCM GHASH function and underlying +# single multiplication operation in GF(2^128). "4-bit" means that it +# uses 256 bytes per-key table [+128 bytes shared table]. Streamed +# GHASH performance was measured to be 6.35 cycles per processed byte +# on Itanium 2, which is >90% better than Microsoft compiler generated +# code. Well, the number should have been ~6.5. The deviation has +# everything to do with the way performance is measured: as difference +# between GCM and straightforward 128-bit counter mode. To anchor to +# something else sha1-ia64.pl module processes one byte in 6.0 cycles. +# On Itanium GHASH should run at ~8.5 cycles per byte. $output=shift and (open STDOUT,">$output" or die "can't open $output: $!");
diff --git a/crypto/modes/asm/ghash-sparcv9.pl b/crypto/modes/asm/ghash-sparcv9.pl new file mode 100644 index 0000000..47d7a1d --- /dev/null +++ b/crypto/modes/asm/ghash-sparcv9.pl
@@ -0,0 +1,324 @@ +#!/usr/bin/env perl + +# ==================================================================== +# Written by Andy Polyakov <appro@openssl.org> for the OpenSSL +# project. The module is, however, dual licensed under OpenSSL and +# CRYPTOGAMS licenses depending on where you obtain it. For further +# details see http://www.openssl.org/~appro/cryptogams/. +# ==================================================================== + +# March 2010 +# +# The module implements "4-bit" GCM GHASH function and underlying +# single multiplication operation in GF(2^128). "4-bit" means that it +# uses 256 bytes per-key table [+128 bytes shared table]. Performance +# results are for streamed GHASH subroutine on UltraSPARC pre-Tx CPU +# and are expressed in cycles per processed byte, less is better: +# +# gcc 3.3.x cc 5.2 this assembler +# +# 32-bit build 81.0 48.6 11.8 (+586%/+311%) +# 64-bit build 27.5 20.3 11.8 (+133%/+72%) +# +# I don't quite understand why difference between 32-bit and 64-bit +# compiler-generated code is so big. Compilers *were* instructed to +# generate code for UltraSPARC and should have used 64-bit registers +# for Z vector (see C code) even in 32-bit build... Oh well, it only +# means more impressive improvement coefficients for this assembler +# module;-) Loops are aggressively modulo-scheduled in respect to +# references to input data and Z.hi updates to achieve 12 cycles +# timing. To anchor to something else, sha1-sparcv9.pl spends 11.6 +# cycles to process one byte [on UltraSPARC pre-Tx CPU]. + +$bits=32; +for (@ARGV) { $bits=64 if (/\-m64/ || /\-xarch\=v9/); } +if ($bits==64) { $bias=2047; $frame=192; } +else { $bias=0; $frame=112; } + +$output=shift; +open STDOUT,">$output"; + +$Zhi="%o0"; # 64-bit values +$Zlo="%o1"; +$Thi="%o2"; +$Tlo="%o3"; +$rem="%o4"; +$tmp="%o5"; + +$nhi="%l0"; # small values and pointers +$nlo="%l1"; +$xi0="%l2"; +$xi1="%l3"; +$rem_4bit="%l4"; +$remi="%l5"; +$Htblo="%l6"; +$cnt="%l7"; + +$inp="%i0"; # input arguments for gcm_ghash_4bit +$len="%i1"; +$Xi="%i2"; +$Htbl="%i3"; + +$code.=<<___; +.section ".text",#alloc,#execinstr + +.align 64 +rem_4bit: + .long `0x0000<<16`,0,`0x1C20<<16`,0,`0x3840<<16`,0,`0x2460<<16`,0 + .long `0x7080<<16`,0,`0x6CA0<<16`,0,`0x48C0<<16`,0,`0x54E0<<16`,0 + .long `0xE100<<16`,0,`0xFD20<<16`,0,`0xD940<<16`,0,`0xC560<<16`,0 + .long `0x9180<<16`,0,`0x8DA0<<16`,0,`0xA9C0<<16`,0,`0xB5E0<<16`,0 +.type rem_4bit,#object +.size rem_4bit,(.-rem_4bit) + +.globl gcm_ghash_4bit +.align 32 +gcm_ghash_4bit: + save %sp,-$frame,%sp + ldub [$inp+15],$nlo + ldub [$Xi+15],$xi0 + ldub [$Xi+14],$xi1 + add $len,$inp,$len + add $Htbl,8,$Htblo + +1: call .+8 + add %o7,rem_4bit-1b,$rem_4bit + +.Louter: + xor $xi0,$nlo,$nlo + and $nlo,0xf0,$nhi + and $nlo,0x0f,$nlo + sll $nlo,4,$nlo + ldx [$Htblo+$nlo],$Zlo + ldx [$Htbl+$nlo],$Zhi + + ldub [$inp+14],$nlo + + ldx [$Htblo+$nhi],$Tlo + and $Zlo,0xf,$remi + ldx [$Htbl+$nhi],$Thi + sll $remi,3,$remi + ldx [$rem_4bit+$remi],$rem + srlx $Zlo,4,$Zlo + mov 13,$cnt + sllx $Zhi,60,$tmp + xor $Tlo,$Zlo,$Zlo + srlx $Zhi,4,$Zhi + xor $Zlo,$tmp,$Zlo + + xor $xi1,$nlo,$nlo + and $Zlo,0xf,$remi + and $nlo,0xf0,$nhi + and $nlo,0x0f,$nlo + ba .Lghash_inner + sll $nlo,4,$nlo +.align 32 +.Lghash_inner: + ldx [$Htblo+$nlo],$Tlo + sll $remi,3,$remi + xor $Thi,$Zhi,$Zhi + ldx [$Htbl+$nlo],$Thi + srlx $Zlo,4,$Zlo + xor $rem,$Zhi,$Zhi + ldx [$rem_4bit+$remi],$rem + sllx $Zhi,60,$tmp + xor $Tlo,$Zlo,$Zlo + ldub [$inp+$cnt],$nlo + srlx $Zhi,4,$Zhi + xor $Zlo,$tmp,$Zlo + ldub [$Xi+$cnt],$xi1 + xor $Thi,$Zhi,$Zhi + and $Zlo,0xf,$remi + + ldx [$Htblo+$nhi],$Tlo + sll $remi,3,$remi + xor $rem,$Zhi,$Zhi + ldx [$Htbl+$nhi],$Thi + srlx $Zlo,4,$Zlo + ldx [$rem_4bit+$remi],$rem + sllx $Zhi,60,$tmp + xor $xi1,$nlo,$nlo + srlx $Zhi,4,$Zhi + and $nlo,0xf0,$nhi + addcc $cnt,-1,$cnt + xor $Zlo,$tmp,$Zlo + and $nlo,0x0f,$nlo + xor $Tlo,$Zlo,$Zlo + sll $nlo,4,$nlo + blu .Lghash_inner + and $Zlo,0xf,$remi + + ldx [$Htblo+$nlo],$Tlo + sll $remi,3,$remi + xor $Thi,$Zhi,$Zhi + ldx [$Htbl+$nlo],$Thi + srlx $Zlo,4,$Zlo + xor $rem,$Zhi,$Zhi + ldx [$rem_4bit+$remi],$rem + sllx $Zhi,60,$tmp + xor $Tlo,$Zlo,$Zlo + srlx $Zhi,4,$Zhi + xor $Zlo,$tmp,$Zlo + xor $Thi,$Zhi,$Zhi + + add $inp,16,$inp + cmp $inp,$len + be,pn `$bits==64?"%xcc":"%icc"`,.Ldone + and $Zlo,0xf,$remi + + ldx [$Htblo+$nhi],$Tlo + sll $remi,3,$remi + xor $rem,$Zhi,$Zhi + ldx [$Htbl+$nhi],$Thi + srlx $Zlo,4,$Zlo + ldx [$rem_4bit+$remi],$rem + sllx $Zhi,60,$tmp + xor $Tlo,$Zlo,$Zlo + ldub [$inp+15],$nlo + srlx $Zhi,4,$Zhi + xor $Zlo,$tmp,$Zlo + xor $Thi,$Zhi,$Zhi + stx $Zlo,[$Xi+8] + xor $rem,$Zhi,$Zhi + stx $Zhi,[$Xi] + srl $Zlo,8,$xi1 + and $Zlo,0xff,$xi0 + ba .Louter + and $xi1,0xff,$xi1 +.align 32 +.Ldone: + ldx [$Htblo+$nhi],$Tlo + sll $remi,3,$remi + xor $rem,$Zhi,$Zhi + ldx [$Htbl+$nhi],$Thi + srlx $Zlo,4,$Zlo + ldx [$rem_4bit+$remi],$rem + sllx $Zhi,60,$tmp + xor $Tlo,$Zlo,$Zlo + srlx $Zhi,4,$Zhi + xor $Zlo,$tmp,$Zlo + xor $Thi,$Zhi,$Zhi + stx $Zlo,[$Xi+8] + xor $rem,$Zhi,$Zhi + stx $Zhi,[$Xi] + + ret + restore +.type gcm_ghash_4bit,#function +.size gcm_ghash_4bit,(.-gcm_ghash_4bit) +___ + +$Xi="%i0"; # input arguments for gcm_gmult_4bit +$Htbl="%i1"; +undef $inp; +undef $len; + +$code.=<<___; +.globl gcm_gmult_4bit +.align 32 +gcm_gmult_4bit: + save %sp,-$frame,%sp + ldub [$Xi+15],$nlo + add $Htbl,8,$Htblo + +1: call .+8 + add %o7,rem_4bit-1b,$rem_4bit + + and $nlo,0xf0,$nhi + and $nlo,0x0f,$nlo + sll $nlo,4,$nlo + ldx [$Htblo+$nlo],$Zlo + ldx [$Htbl+$nlo],$Zhi + + ldub [$Xi+14],$nlo + + ldx [$Htblo+$nhi],$Tlo + and $Zlo,0xf,$remi + ldx [$Htbl+$nhi],$Thi + sll $remi,3,$remi + ldx [$rem_4bit+$remi],$rem + srlx $Zlo,4,$Zlo + mov 13,$cnt + sllx $Zhi,60,$tmp + xor $Tlo,$Zlo,$Zlo + srlx $Zhi,4,$Zhi + xor $Zlo,$tmp,$Zlo + + and $Zlo,0xf,$remi + and $nlo,0xf0,$nhi + and $nlo,0x0f,$nlo + ba .Lgmult_inner + sll $nlo,4,$nlo +.align 32 +.Lgmult_inner: + ldx [$Htblo+$nlo],$Tlo + sll $remi,3,$remi + xor $Thi,$Zhi,$Zhi + ldx [$Htbl+$nlo],$Thi + srlx $Zlo,4,$Zlo + xor $rem,$Zhi,$Zhi + ldx [$rem_4bit+$remi],$rem + sllx $Zhi,60,$tmp + xor $Tlo,$Zlo,$Zlo + ldub [$Xi+$cnt],$nlo + srlx $Zhi,4,$Zhi + xor $Zlo,$tmp,$Zlo + xor $Thi,$Zhi,$Zhi + and $Zlo,0xf,$remi + + ldx [$Htblo+$nhi],$Tlo + sll $remi,3,$remi + xor $rem,$Zhi,$Zhi + ldx [$Htbl+$nhi],$Thi + srlx $Zlo,4,$Zlo + ldx [$rem_4bit+$remi],$rem + sllx $Zhi,60,$tmp + srlx $Zhi,4,$Zhi + and $nlo,0xf0,$nhi + addcc $cnt,-1,$cnt + xor $Zlo,$tmp,$Zlo + and $nlo,0x0f,$nlo + xor $Tlo,$Zlo,$Zlo + sll $nlo,4,$nlo + blu .Lgmult_inner + and $Zlo,0xf,$remi + + ldx [$Htblo+$nlo],$Tlo + sll $remi,3,$remi + xor $Thi,$Zhi,$Zhi + ldx [$Htbl+$nlo],$Thi + srlx $Zlo,4,$Zlo + xor $rem,$Zhi,$Zhi + ldx [$rem_4bit+$remi],$rem + sllx $Zhi,60,$tmp + xor $Tlo,$Zlo,$Zlo + srlx $Zhi,4,$Zhi + xor $Zlo,$tmp,$Zlo + xor $Thi,$Zhi,$Zhi + and $Zlo,0xf,$remi + + ldx [$Htblo+$nhi],$Tlo + sll $remi,3,$remi + xor $rem,$Zhi,$Zhi + ldx [$Htbl+$nhi],$Thi + srlx $Zlo,4,$Zlo + ldx [$rem_4bit+$remi],$rem + sllx $Zhi,60,$tmp + xor $Tlo,$Zlo,$Zlo + srlx $Zhi,4,$Zhi + xor $Zlo,$tmp,$Zlo + xor $Thi,$Zhi,$Zhi + stx $Zlo,[$Xi+8] + xor $rem,$Zhi,$Zhi + stx $Zhi,[$Xi] + + ret + restore +.type gcm_gmult_4bit,#function +.size gcm_gmult_4bit,(.-gcm_gmult_4bit) +.asciz "GHASH for SPARCv9, CRYPTOGAMS by <appro\@openssl.org>" +___ + +$code =~ s/\`([^\`]*)\`/eval $1/gem; +print $code; +close STDOUT;
diff --git a/crypto/modes/asm/ghash-x86.pl b/crypto/modes/asm/ghash-x86.pl index 63e76c1..13efbce 100644 --- a/crypto/modes/asm/ghash-x86.pl +++ b/crypto/modes/asm/ghash-x86.pl
@@ -9,13 +9,13 @@ # # March 2010 # -# The module implements "4-bit" Galois field multiplication and -# streamed GHASH function. "4-bit" means that it uses 256 bytes -# per-key table [+64/128 bytes fixed table]. It has two code paths: -# vanilla x86 and vanilla MMX. Former will be executed on 486 and -# Pentium, latter on all others. Performance results are for streamed -# GHASH subroutine and are expressed in cycles per processed byte, -# less is better: +# The module implements "4-bit" GCM GHASH function and underlying +# single multiplication operation in GF(2^128). "4-bit" means that it +# uses 256 bytes per-key table [+64/128 bytes fixed table]. It has two +# code paths: vanilla x86 and vanilla MMX. Former will be executed on +# 486 and Pentium, latter on all others. Performance results are for +# streamed GHASH subroutine and are expressed in cycles per processed +# byte, less is better: # # gcc 2.95.3(*) MMX assembler x86 assembler #
diff --git a/crypto/modes/asm/ghash-x86_64.pl b/crypto/modes/asm/ghash-x86_64.pl index e207678..1072979 100644 --- a/crypto/modes/asm/ghash-x86_64.pl +++ b/crypto/modes/asm/ghash-x86_64.pl
@@ -9,11 +9,11 @@ # # March 2010 # -# The module implements "4-bit" Galois field multiplication and -# streamed GHASH function. "4-bit" means that it uses 256 bytes -# per-key table [+128 bytes shared table]. Performance results are for -# streamed GHASH subroutine and are expressed in cycles per processed -# byte, less is better: +# The module implements "4-bit" GCM GHASH function and underlying +# single multiplication operation in GF(2^128). "4-bit" means that it +# uses 256 bytes per-key table [+128 bytes shared table]. Performance +# results are for streamed GHASH subroutine and are expressed in +# cycles per processed byte, less is better: # # gcc 3.4.x assembler #