From e91718e80d1c8bdf6858bfae0bf6ebd97c65577b Mon Sep 17 00:00:00 2001 From: Andy Polyakov Date: Wed, 16 Jul 2014 13:38:15 +0200 Subject: [PATCH] Revert "Add GHASH for PowerISA 2.07." This reverts commit 927f2e5dea1da17bcc2c3d2baf7258318b57515c. --- crypto/modes/asm/ghashp8-ppc.pl | 229 -------------------------------- 1 file changed, 229 deletions(-) delete mode 100755 crypto/modes/asm/ghashp8-ppc.pl diff --git a/crypto/modes/asm/ghashp8-ppc.pl b/crypto/modes/asm/ghashp8-ppc.pl deleted file mode 100755 index 3571f442ef..0000000000 --- a/crypto/modes/asm/ghashp8-ppc.pl +++ /dev/null @@ -1,229 +0,0 @@ -#!/usr/bin/env perl -# -# ==================================================================== -# Written by Andy Polyakov 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/. -# ==================================================================== -# -# GHASH for for PowerISA v2.07. -# -# July 2014 -# -# Initial version is 2.27x slower than hardware-assisted AES-128-CTR, -# 11x faster than "4-bit" integer-only compiler-generated 64-bit code. - -$flavour=shift; -$output =shift; - -if ($flavour =~ /64/) { - $SIZE_T=8; - $LRSAVE=2*$SIZE_T; - $STU="stdu"; - $POP="ld"; - $PUSH="std"; -} elsif ($flavour =~ /32/) { - $SIZE_T=4; - $LRSAVE=$SIZE_T; - $STU="stwu"; - $POP="lwz"; - $PUSH="stw"; -} else { die "nonsense $flavour"; } - -$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1; -( $xlate="${dir}ppc-xlate.pl" and -f $xlate ) or -( $xlate="${dir}../../perlasm/ppc-xlate.pl" and -f $xlate) or -die "can't locate ppc-xlate.pl"; - -open STDOUT,"| $^X $xlate $flavour $output" || die "can't call $xlate: $!"; - -my ($Xip,$Htbl,$inp,$len)=map("r$_",(3..6)); # argument block - -my ($Xl,$Xm,$Xh,$IN)=map("v$_",(0..3)); -my ($zero,$t0,$t1,$t2,$xC2,$H,$Hh,$Hl,$lemask)=map("v$_",(4..12)); -my $vrsave="r12"; - -$code=<<___; -.machine "any" - -.text - -.globl .gcm_init_p8 -.align 5 -.gcm_init_p8: - lis r0,0xfff0 - li r8,0x10 - mfspr $vrsave,256 - li r9,0x20 - mtspr 256,r0 - li r10,0x30 - lvx_u $H,0,r4 # load H - - vspltisb $xC2,-16 # 0xf0 - vspltisb $t0,1 # one - vaddubm $xC2,$xC2,$xC2 # 0xe0 - vxor $zero,$zero,$zero - vor $xC2,$xC2,$t0 # 0xe1 - vsldoi $xC2,$xC2,$zero,15 # 0xe1... - vsldoi $t1,$zero,$t0,1 # ...1 - vaddubm $xC2,$xC2,$xC2 # 0xc2... - vspltisb $t2,7 - vor $xC2,$xC2,$t1 # 0xc2....01 - vspltb $t1,$H,0 # most significant byte - vsl $H,$H,$t0 # H<<=1 - vsrab $t1,$t1,$t2 # broadcast carry bit - vand $t1,$t1,$xC2 - vxor $H,$H,$t1 # twisted H - - vsldoi $H,$H,$H,8 # twist even more ... - vsldoi $xC2,$zero,$xC2,8 # 0xc2.0 - vsldoi $Hl,$zero,$H,8 # ... and split - vsldoi $Hh,$H,$zero,8 - - stvx_u $xC2,0,r3 # save pre-computed table - stvx_u $Hl,r8,r3 - stvx_u $H, r9,r3 - stvx_u $Hh,r10,r3 - - mtspr 256,$vrsave - blr - .long 0 - .byte 0,12,0x14,0,0,0,2,0 - .long 0 -.size .gcm_init_p8,.-.gcm_init_p8 - -.globl .gcm_gmult_p8 -.align 5 -.gcm_gmult_p8: - lis r0,0xfff8 - li r8,0x10 - mfspr $vrsave,256 - li r9,0x20 - mtspr 256,r0 - li r10,0x30 - lvx_u $IN,0,$Xip # load Xi - - lvx_u $Hl,r8,$Htbl # load pre-computed table - le?lvsl $lemask,r0,r0 - lvx_u $H, r9,$Htbl - le?vspltisb $t0,0x07 - lvx_u $Hh,r10,$Htbl - le?vxor $lemask,$lemask,$t0 - lvx_u $xC2,0,$Htbl - le?vperm $IN,$IN,$IN,$lemask - vxor $zero,$zero,$zero - - vpmsumd $Xl,$IN,$Hl # H.lo·Xi.lo - vpmsumd $Xm,$IN,$H # H.hi·Xi.lo+H.lo·Xi.hi - vpmsumd $Xh,$IN,$Hh # H.hi·Xi.hi - - vpmsumd $t2,$Xl,$xC2 # 1st phase - - vsldoi $t0,$Xm,$zero,8 - vsldoi $t1,$zero,$Xm,8 - vxor $Xl,$Xl,$t0 - vxor $Xh,$Xh,$t1 - - vsldoi $Xl,$Xl,$Xl,8 - vxor $Xl,$Xl,$t2 - - vsldoi $t1,$Xl,$Xl,8 # 2nd phase - vpmsumd $Xl,$Xl,$xC2 - vxor $t1,$t1,$Xh - vxor $Xl,$Xl,$t1 - - le?vperm $Xl,$Xl,$Xl,$lemask - stvx_u $Xl,0,$Xip # write out Xi - - mtspr 256,$vrsave - blr - .long 0 - .byte 0,12,0x14,0,0,0,2,0 - .long 0 -.size .gcm_gmult_p8,.-.gcm_gmult_p8 - -.globl .gcm_ghash_p8 -.align 5 -.gcm_ghash_p8: - lis r0,0xfff8 - li r8,0x10 - mfspr $vrsave,256 - li r9,0x20 - mtspr 256,r0 - li r10,0x30 - lvx_u $Xl,0,$Xip # load Xi - - lvx_u $Hl,r8,$Htbl # load pre-computed table - le?lvsl $lemask,r0,r0 - lvx_u $H, r9,$Htbl - le?vspltisb $t0,0x07 - lvx_u $Hh,r10,$Htbl - le?vxor $lemask,$lemask,$t0 - lvx_u $xC2,0,$Htbl - le?vperm $Xl,$Xl,$Xl,$lemask - vxor $zero,$zero,$zero - - lvx_u $IN,0,$inp - addi $inp,$inp,16 - subi $len,$len,16 - le?vperm $IN,$IN,$IN,$lemask - b Loop - -.align 5 -Loop: - vxor $IN,$IN,$Xl - subic $len,$len,16 - - vpmsumd $Xl,$IN,$Hl # H.lo·Xi.lo - subfe. r0,r0,r0 # borrow?-1:0 - vpmsumd $Xm,$IN,$H # H.hi·Xi.lo+H.lo·Xi.hi - and r0,r0,$len - vpmsumd $Xh,$IN,$Hh # H.hi·Xi.hi - add $inp,$inp,r0 - - vpmsumd $t2,$Xl,$xC2 # 1st phase - - vsldoi $t0,$Xm,$zero,8 - vsldoi $t1,$zero,$Xm,8 - vxor $Xl,$Xl,$t0 - vxor $Xh,$Xh,$t1 - - vsldoi $Xl,$Xl,$Xl,8 - vxor $Xl,$Xl,$t2 - lvx_u $IN,0,$inp - addi $inp,$inp,16 - - vsldoi $t1,$Xl,$Xl,8 # 2nd phase - vpmsumd $Xl,$Xl,$xC2 - vxor $t1,$t1,$Xh - le?vperm $IN,$IN,$IN,$lemask - vxor $Xl,$Xl,$t1 - beq Loop # did $len-=16 borrow? - - le?vperm $Xl,$Xl,$Xl,$lemask - stvx_u $Xl,0,$Xip # write out Xi - - mtspr 256,$vrsave - blr - .long 0 - .byte 0,12,0x14,0,0,0,4,0 - .long 0 -.size .gcm_ghash_p8,.-.gcm_ghash_p8 - -.asciz "GHASH for PowerISA 2.07, CRYPTOGAMS by " -.align 2 -___ - -foreach (split("\n",$code)) { - if ($flavour =~ /le$/o) { # little-endian - s/le\?//o or - s/be\?/#be#/o; - } else { - s/le\?/#le#/o or - s/be\?//o; - } - print $_,"\n"; -} - -close STDOUT; # enforce flush -- 2.34.1