PPC assembly pack: add ChaCha20 and Poly1305 modules.
Reviewed-by: Richard Levitte <levitte@openssl.org>
This commit is contained in:
Andy Polyakov
parent
af093bf485
commit
9e58d1192d
7 changed files with 2322 additions and 0 deletions
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@ -40,6 +40,8 @@ chacha-x86.s: asm/chacha-x86.pl
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$(PERL) asm/chacha-x86.pl $(PERLASM_SCHEME) $(CFLAGS) $(PROCESSOR) > $@
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chacha-x86_64.s: asm/chacha-x86_64.pl
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$(PERL) asm/chacha-x86_64.pl $(PERLASM_SCHEME) > $@
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chacha-ppc.s: asm/chacha-ppc.pl
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$(PERL) asm/chacha-ppc.pl $(PERLASM_SCHEME) $@
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chacha-%.S: asm/chacha-%.pl; $(PERL) $< $(PERLASM_SCHEME) $@
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942
crypto/chacha/asm/chacha-ppc.pl
Executable file
942
crypto/chacha/asm/chacha-ppc.pl
Executable file
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@ -0,0 +1,942 @@
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#!/usr/bin/env perl
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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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# October 2015
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#
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# ChaCha20 for PowerPC/AltiVec.
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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.x 3xAltiVec+1xIALU
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#
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# Freescale e300 13.6/+115% -
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# PPC74x0 6.81/+310% 4.66
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# POWER7 8.62/+61% 4.27
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# POWER8 8.70/+51% 3.96
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$flavour = shift;
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if ($flavour =~ /64/) {
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$SIZE_T =8;
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$LRSAVE =2*$SIZE_T;
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$STU ="stdu";
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$POP ="ld";
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$PUSH ="std";
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$UCMP ="cmpld";
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} elsif ($flavour =~ /32/) {
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$SIZE_T =4;
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$LRSAVE =$SIZE_T;
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$STU ="stwu";
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$POP ="lwz";
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$PUSH ="stw";
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$UCMP ="cmplw";
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} else { die "nonsense $flavour"; }
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$LITTLE_ENDIAN = ($flavour=~/le$/) ? 1 : 0;
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$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
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( $xlate="${dir}ppc-xlate.pl" and -f $xlate ) or
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( $xlate="${dir}../../perlasm/ppc-xlate.pl" and -f $xlate) or
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die "can't locate ppc-xlate.pl";
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open STDOUT,"| $^X $xlate $flavour ".shift || die "can't call $xlate: $!";
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$LOCALS=6*$SIZE_T;
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$FRAME=$LOCALS+64+18*$SIZE_T; # 64 is for local variables
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sub AUTOLOAD() # thunk [simplified] x86-style perlasm
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{ my $opcode = $AUTOLOAD; $opcode =~ s/.*:://; $opcode =~ s/_/\./;
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$code .= "\t$opcode\t".join(',',@_)."\n";
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}
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my $sp = "r1";
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my ($out,$inp,$len,$key,$ctr) = map("r$_",(3..7));
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my @x=map("r$_",(16..31));
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my @d=map("r$_",(11,12,14,15));
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my @t=map("r$_",(7..10));
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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 (@x[$a0],@x[$a0],@x[$b0])",
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"&add (@x[$a1],@x[$a1],@x[$b1])",
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"&add (@x[$a2],@x[$a2],@x[$b2])",
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"&add (@x[$a3],@x[$a3],@x[$b3])",
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"&xor (@x[$d0],@x[$d0],@x[$a0])",
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"&xor (@x[$d1],@x[$d1],@x[$a1])",
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"&xor (@x[$d2],@x[$d2],@x[$a2])",
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"&xor (@x[$d3],@x[$d3],@x[$a3])",
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"&rotlwi (@x[$d0],@x[$d0],16)",
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"&rotlwi (@x[$d1],@x[$d1],16)",
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"&rotlwi (@x[$d2],@x[$d2],16)",
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"&rotlwi (@x[$d3],@x[$d3],16)",
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"&add (@x[$c0],@x[$c0],@x[$d0])",
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"&add (@x[$c1],@x[$c1],@x[$d1])",
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"&add (@x[$c2],@x[$c2],@x[$d2])",
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"&add (@x[$c3],@x[$c3],@x[$d3])",
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"&xor (@x[$b0],@x[$b0],@x[$c0])",
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"&xor (@x[$b1],@x[$b1],@x[$c1])",
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"&xor (@x[$b2],@x[$b2],@x[$c2])",
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"&xor (@x[$b3],@x[$b3],@x[$c3])",
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"&rotlwi (@x[$b0],@x[$b0],12)",
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"&rotlwi (@x[$b1],@x[$b1],12)",
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"&rotlwi (@x[$b2],@x[$b2],12)",
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"&rotlwi (@x[$b3],@x[$b3],12)",
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"&add (@x[$a0],@x[$a0],@x[$b0])",
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"&add (@x[$a1],@x[$a1],@x[$b1])",
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"&add (@x[$a2],@x[$a2],@x[$b2])",
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"&add (@x[$a3],@x[$a3],@x[$b3])",
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"&xor (@x[$d0],@x[$d0],@x[$a0])",
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"&xor (@x[$d1],@x[$d1],@x[$a1])",
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"&xor (@x[$d2],@x[$d2],@x[$a2])",
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"&xor (@x[$d3],@x[$d3],@x[$a3])",
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"&rotlwi (@x[$d0],@x[$d0],8)",
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"&rotlwi (@x[$d1],@x[$d1],8)",
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"&rotlwi (@x[$d2],@x[$d2],8)",
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"&rotlwi (@x[$d3],@x[$d3],8)",
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"&add (@x[$c0],@x[$c0],@x[$d0])",
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"&add (@x[$c1],@x[$c1],@x[$d1])",
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"&add (@x[$c2],@x[$c2],@x[$d2])",
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"&add (@x[$c3],@x[$c3],@x[$d3])",
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"&xor (@x[$b0],@x[$b0],@x[$c0])",
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"&xor (@x[$b1],@x[$b1],@x[$c1])",
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"&xor (@x[$b2],@x[$b2],@x[$c2])",
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"&xor (@x[$b3],@x[$b3],@x[$c3])",
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"&rotlwi (@x[$b0],@x[$b0],7)",
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"&rotlwi (@x[$b1],@x[$b1],7)",
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"&rotlwi (@x[$b2],@x[$b2],7)",
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"&rotlwi (@x[$b3],@x[$b3],7)"
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);
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}
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$code.=<<___;
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.machine "any"
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.globl .ChaCha20_ctr32_int
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.align 5
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.ChaCha20_ctr32_int:
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__ChaCha20_ctr32_int:
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${UCMP}i $len,0
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beqlr-
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$STU $sp,-$FRAME($sp)
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mflr r0
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$PUSH r14,`$FRAME-$SIZE_T*18`($sp)
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$PUSH r15,`$FRAME-$SIZE_T*17`($sp)
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$PUSH r16,`$FRAME-$SIZE_T*16`($sp)
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$PUSH r17,`$FRAME-$SIZE_T*15`($sp)
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$PUSH r18,`$FRAME-$SIZE_T*14`($sp)
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$PUSH r19,`$FRAME-$SIZE_T*13`($sp)
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$PUSH r20,`$FRAME-$SIZE_T*12`($sp)
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$PUSH r21,`$FRAME-$SIZE_T*11`($sp)
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$PUSH r22,`$FRAME-$SIZE_T*10`($sp)
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$PUSH r23,`$FRAME-$SIZE_T*9`($sp)
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$PUSH r24,`$FRAME-$SIZE_T*8`($sp)
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$PUSH r25,`$FRAME-$SIZE_T*7`($sp)
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$PUSH r26,`$FRAME-$SIZE_T*6`($sp)
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$PUSH r27,`$FRAME-$SIZE_T*5`($sp)
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$PUSH r28,`$FRAME-$SIZE_T*4`($sp)
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$PUSH r29,`$FRAME-$SIZE_T*3`($sp)
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$PUSH r30,`$FRAME-$SIZE_T*2`($sp)
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$PUSH r31,`$FRAME-$SIZE_T*1`($sp)
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$PUSH r0,`$FRAME+$LRSAVE`($sp)
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lwz @d[0],0($ctr) # load counter
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lwz @d[1],4($ctr)
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lwz @d[2],8($ctr)
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lwz @d[3],12($ctr)
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bl __ChaCha20_1x
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$POP r0,`$FRAME+$LRSAVE`($sp)
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$POP r14,`$FRAME-$SIZE_T*18`($sp)
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$POP r15,`$FRAME-$SIZE_T*17`($sp)
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$POP r16,`$FRAME-$SIZE_T*16`($sp)
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$POP r17,`$FRAME-$SIZE_T*15`($sp)
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$POP r18,`$FRAME-$SIZE_T*14`($sp)
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$POP r19,`$FRAME-$SIZE_T*13`($sp)
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$POP r20,`$FRAME-$SIZE_T*12`($sp)
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$POP r21,`$FRAME-$SIZE_T*11`($sp)
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$POP r22,`$FRAME-$SIZE_T*10`($sp)
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$POP r23,`$FRAME-$SIZE_T*9`($sp)
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$POP r24,`$FRAME-$SIZE_T*8`($sp)
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$POP r25,`$FRAME-$SIZE_T*7`($sp)
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$POP r26,`$FRAME-$SIZE_T*6`($sp)
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$POP r27,`$FRAME-$SIZE_T*5`($sp)
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$POP r28,`$FRAME-$SIZE_T*4`($sp)
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$POP r29,`$FRAME-$SIZE_T*3`($sp)
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$POP r30,`$FRAME-$SIZE_T*2`($sp)
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$POP r31,`$FRAME-$SIZE_T*1`($sp)
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mtlr r0
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addi $sp,$sp,$FRAME
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blr
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.long 0
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.byte 0,12,4,1,0x80,18,5,0
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.long 0
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.size .ChaCha20_ctr32_int,.-.ChaCha20_ctr32_int
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.align 5
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__ChaCha20_1x:
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Loop_outer:
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lis @x[0],0x6170 # synthesize sigma
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lis @x[1],0x3320
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lis @x[2],0x7962
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lis @x[3],0x6b20
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ori @x[0],@x[0],0x7865
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ori @x[1],@x[1],0x646e
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ori @x[2],@x[2],0x2d32
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ori @x[3],@x[3],0x6574
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li r0,10 # inner loop counter
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lwz @x[4],0($key) # load key
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lwz @x[5],4($key)
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lwz @x[6],8($key)
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lwz @x[7],12($key)
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lwz @x[8],16($key)
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mr @x[12],@d[0] # copy counter
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lwz @x[9],20($key)
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mr @x[13],@d[1]
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lwz @x[10],24($key)
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mr @x[14],@d[2]
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lwz @x[11],28($key)
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mr @x[15],@d[3]
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mr @t[0],@x[4]
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mr @t[1],@x[5]
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mr @t[2],@x[6]
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mr @t[3],@x[7]
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mtctr r0
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Loop:
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___
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foreach (&ROUND(0, 4, 8,12)) { eval; }
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foreach (&ROUND(0, 5,10,15)) { eval; }
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$code.=<<___;
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bdnz Loop
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subic $len,$len,64 # $len-=64
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addi @x[0],@x[0],0x7865 # accumulate key block
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addi @x[1],@x[1],0x646e
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addi @x[2],@x[2],0x2d32
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addi @x[3],@x[3],0x6574
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addis @x[0],@x[0],0x6170
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addis @x[1],@x[1],0x3320
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addis @x[2],@x[2],0x7962
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addis @x[3],@x[3],0x6b20
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subfe. r0,r0,r0 # borrow?-1:0
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add @x[4],@x[4],@t[0]
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lwz @t[0],16($key)
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add @x[5],@x[5],@t[1]
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lwz @t[1],20($key)
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add @x[6],@x[6],@t[2]
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lwz @t[2],24($key)
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add @x[7],@x[7],@t[3]
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lwz @t[3],28($key)
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add @x[8],@x[8],@t[0]
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add @x[9],@x[9],@t[1]
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add @x[10],@x[10],@t[2]
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add @x[11],@x[11],@t[3]
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add @x[12],@x[12],@d[0]
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add @x[13],@x[13],@d[1]
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add @x[14],@x[14],@d[2]
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add @x[15],@x[15],@d[3]
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addi @d[0],@d[0],1 # increment counter
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___
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if (!$LITTLE_ENDIAN) { for($i=0;$i<16;$i++) { # flip byte order
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$code.=<<___;
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mr @t[$i&3],@x[$i]
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rotlwi @x[$i],@x[$i],8
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rlwimi @x[$i],@t[$i&3],24,0,7
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rlwimi @x[$i],@t[$i&3],24,16,23
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___
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} }
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$code.=<<___;
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bne Ltail # $len-=64 borrowed
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lwz @t[0],0($inp) # load input, aligned or not
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lwz @t[1],4($inp)
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${UCMP}i $len,0 # done already?
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lwz @t[2],8($inp)
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lwz @t[3],12($inp)
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xor @x[0],@x[0],@t[0] # xor with input
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lwz @t[0],16($inp)
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xor @x[1],@x[1],@t[1]
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lwz @t[1],20($inp)
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xor @x[2],@x[2],@t[2]
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lwz @t[2],24($inp)
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xor @x[3],@x[3],@t[3]
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lwz @t[3],28($inp)
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xor @x[4],@x[4],@t[0]
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lwz @t[0],32($inp)
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xor @x[5],@x[5],@t[1]
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lwz @t[1],36($inp)
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xor @x[6],@x[6],@t[2]
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lwz @t[2],40($inp)
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xor @x[7],@x[7],@t[3]
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lwz @t[3],44($inp)
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xor @x[8],@x[8],@t[0]
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lwz @t[0],48($inp)
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xor @x[9],@x[9],@t[1]
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lwz @t[1],52($inp)
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xor @x[10],@x[10],@t[2]
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lwz @t[2],56($inp)
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xor @x[11],@x[11],@t[3]
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lwz @t[3],60($inp)
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xor @x[12],@x[12],@t[0]
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stw @x[0],0($out) # store output, aligned or not
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xor @x[13],@x[13],@t[1]
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stw @x[1],4($out)
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xor @x[14],@x[14],@t[2]
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stw @x[2],8($out)
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xor @x[15],@x[15],@t[3]
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stw @x[3],12($out)
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stw @x[4],16($out)
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stw @x[5],20($out)
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stw @x[6],24($out)
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stw @x[7],28($out)
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stw @x[8],32($out)
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stw @x[9],36($out)
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stw @x[10],40($out)
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stw @x[11],44($out)
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stw @x[12],48($out)
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stw @x[13],52($out)
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stw @x[14],56($out)
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addi $inp,$inp,64
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stw @x[15],60($out)
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addi $out,$out,64
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bne Loop_outer
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blr
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.align 4
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Ltail:
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addi $len,$len,64 # restore tail length
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subi $inp,$inp,1 # prepare for *++ptr
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subi $out,$out,1
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addi @t[0],$sp,$LOCALS-1
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mtctr $len
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stw @x[0],`$LOCALS+0`($sp) # save whole block to stack
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stw @x[1],`$LOCALS+4`($sp)
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stw @x[2],`$LOCALS+8`($sp)
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stw @x[3],`$LOCALS+12`($sp)
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stw @x[4],`$LOCALS+16`($sp)
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stw @x[5],`$LOCALS+20`($sp)
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stw @x[6],`$LOCALS+24`($sp)
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stw @x[7],`$LOCALS+28`($sp)
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stw @x[8],`$LOCALS+32`($sp)
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stw @x[9],`$LOCALS+36`($sp)
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stw @x[10],`$LOCALS+40`($sp)
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stw @x[11],`$LOCALS+44`($sp)
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stw @x[12],`$LOCALS+48`($sp)
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stw @x[13],`$LOCALS+52`($sp)
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stw @x[14],`$LOCALS+56`($sp)
|
||||
stw @x[15],`$LOCALS+60`($sp)
|
||||
|
||||
Loop_tail: # byte-by-byte loop
|
||||
lbzu @d[0],1($inp)
|
||||
lbzu @x[0],1(@t[0])
|
||||
xor @d[1],@d[0],@x[0]
|
||||
stbu @d[1],1($out)
|
||||
bdnz Loop_tail
|
||||
|
||||
stw $sp,`$LOCALS+0`($sp) # wipe block on stack
|
||||
stw $sp,`$LOCALS+4`($sp)
|
||||
stw $sp,`$LOCALS+8`($sp)
|
||||
stw $sp,`$LOCALS+12`($sp)
|
||||
stw $sp,`$LOCALS+16`($sp)
|
||||
stw $sp,`$LOCALS+20`($sp)
|
||||
stw $sp,`$LOCALS+24`($sp)
|
||||
stw $sp,`$LOCALS+28`($sp)
|
||||
stw $sp,`$LOCALS+32`($sp)
|
||||
stw $sp,`$LOCALS+36`($sp)
|
||||
stw $sp,`$LOCALS+40`($sp)
|
||||
stw $sp,`$LOCALS+44`($sp)
|
||||
stw $sp,`$LOCALS+48`($sp)
|
||||
stw $sp,`$LOCALS+52`($sp)
|
||||
stw $sp,`$LOCALS+56`($sp)
|
||||
stw $sp,`$LOCALS+60`($sp)
|
||||
|
||||
blr
|
||||
.long 0
|
||||
.byte 0,12,0x14,0,0,0,0,0
|
||||
___
|
||||
|
||||
{{{
|
||||
my ($A0,$B0,$C0,$D0,$A1,$B1,$C1,$D1,$A2,$B2,$C2,$D2,$T0,$T1,$T2) =
|
||||
map("v$_",(0..14));
|
||||
my (@K)=map("v$_",(15..20));
|
||||
my ($FOUR,$sixteen,$twenty4,$twenty,$twelve,$twenty5,$seven) =
|
||||
map("v$_",(21..27));
|
||||
my ($inpperm,$outperm,$outmask) = map("v$_",(28..30));
|
||||
my @D=("v31",$seven,$T0,$T1,$T2);
|
||||
|
||||
my $FRAME=$LOCALS+64+13*16+18*$SIZE_T; # 13*16 is for v20-v31 offload
|
||||
|
||||
sub VMXROUND {
|
||||
my $odd = pop;
|
||||
my ($a,$b,$c,$d,$t)=@_;
|
||||
|
||||
(
|
||||
"&vadduwm ('$a','$a','$b')",
|
||||
"&vxor ('$d','$d','$a')",
|
||||
"&vperm ('$d','$d','$d','$sixteen')",
|
||||
|
||||
"&vadduwm ('$c','$c','$d')",
|
||||
"&vxor ('$t','$b','$c')",
|
||||
"&vsrw ('$b','$t','$twenty')",
|
||||
"&vslw ('$t','$t','$twelve')",
|
||||
"&vor ('$b','$b','$t')",
|
||||
|
||||
"&vadduwm ('$a','$a','$b')",
|
||||
"&vxor ('$d','$d','$a')",
|
||||
"&vperm ('$d','$d','$d','$twenty4')",
|
||||
|
||||
"&vadduwm ('$c','$c','$d')",
|
||||
"&vxor ('$t','$b','$c')",
|
||||
"&vsrw ('$b','$t','$twenty5')",
|
||||
"&vslw ('$t','$t','$seven')",
|
||||
"&vor ('$b','$b','$t')",
|
||||
|
||||
"&vsldoi ('$c','$c','$c',8)",
|
||||
"&vsldoi ('$b','$b','$b',$odd?4:12)",
|
||||
"&vsldoi ('$d','$d','$d',$odd?12:4)"
|
||||
);
|
||||
}
|
||||
|
||||
$code.=<<___;
|
||||
|
||||
.globl .ChaCha20_ctr32_vmx
|
||||
.align 5
|
||||
.ChaCha20_ctr32_vmx:
|
||||
${UCMP}i $len,256
|
||||
blt __ChaCha20_ctr32_int
|
||||
|
||||
$STU $sp,-$FRAME($sp)
|
||||
mflr r0
|
||||
li r10,`15+$LOCALS+64`
|
||||
li r11,`31+$LOCALS+64`
|
||||
mfspr r12,256
|
||||
stvx v20,r10,$sp
|
||||
addi r10,r10,32
|
||||
stvx v21,r11,$sp
|
||||
addi r11,r11,32
|
||||
stvx v22,r10,$sp
|
||||
addi r10,r10,32
|
||||
stvx v23,r11,$sp
|
||||
addi r11,r11,32
|
||||
stvx v24,r10,$sp
|
||||
addi r10,r10,32
|
||||
stvx v25,r11,$sp
|
||||
addi r11,r11,32
|
||||
stvx v26,r10,$sp
|
||||
addi r10,r10,32
|
||||
stvx v27,r11,$sp
|
||||
addi r11,r11,32
|
||||
stvx v28,r10,$sp
|
||||
addi r10,r10,32
|
||||
stvx v29,r11,$sp
|
||||
addi r11,r11,32
|
||||
stvx v30,r10,$sp
|
||||
stvx v31,r11,$sp
|
||||
stw r12,`$FRAME-$SIZE_T*18-4`($sp) # save vrsave
|
||||
$PUSH r14,`$FRAME-$SIZE_T*18`($sp)
|
||||
$PUSH r15,`$FRAME-$SIZE_T*17`($sp)
|
||||
$PUSH r16,`$FRAME-$SIZE_T*16`($sp)
|
||||
$PUSH r17,`$FRAME-$SIZE_T*15`($sp)
|
||||
$PUSH r18,`$FRAME-$SIZE_T*14`($sp)
|
||||
$PUSH r19,`$FRAME-$SIZE_T*13`($sp)
|
||||
$PUSH r20,`$FRAME-$SIZE_T*12`($sp)
|
||||
$PUSH r21,`$FRAME-$SIZE_T*11`($sp)
|
||||
$PUSH r22,`$FRAME-$SIZE_T*10`($sp)
|
||||
$PUSH r23,`$FRAME-$SIZE_T*9`($sp)
|
||||
$PUSH r24,`$FRAME-$SIZE_T*8`($sp)
|
||||
$PUSH r25,`$FRAME-$SIZE_T*7`($sp)
|
||||
$PUSH r26,`$FRAME-$SIZE_T*6`($sp)
|
||||
$PUSH r27,`$FRAME-$SIZE_T*5`($sp)
|
||||
$PUSH r28,`$FRAME-$SIZE_T*4`($sp)
|
||||
$PUSH r29,`$FRAME-$SIZE_T*3`($sp)
|
||||
$PUSH r30,`$FRAME-$SIZE_T*2`($sp)
|
||||
$PUSH r31,`$FRAME-$SIZE_T*1`($sp)
|
||||
li 12,-1
|
||||
$PUSH r0, `$FRAME+$LRSAVE`($sp)
|
||||
mtspr 256,r12 # preserve all AltiVec registers
|
||||
|
||||
bl Lconsts # returns pointer Lsigma in r12
|
||||
li @x[0],16
|
||||
li @x[1],32
|
||||
li @x[2],48
|
||||
li @x[3],64
|
||||
li @x[4],31 # 31 is not a typo
|
||||
li @x[5],15 # nor is 15
|
||||
|
||||
lvx @K[1],0,$key # load key
|
||||
?lvsr $T0,0,$key # prepare unaligned load
|
||||
lvx @K[2],@x[0],$key
|
||||
lvx @D[0],@x[4],$key
|
||||
|
||||
lvx @K[3],0,$ctr # load counter
|
||||
?lvsr $T1,0,$ctr # prepare unaligned load
|
||||
lvx @D[1],@x[5],$ctr
|
||||
|
||||
lvx @K[0],0,r12 # load constants
|
||||
lvx @K[5],@x[0],r12 # one
|
||||
lvx $FOUR,@x[1],r12
|
||||
lvx $sixteen,@x[2],r12
|
||||
lvx $twenty4,@x[3],r12
|
||||
|
||||
?vperm @K[1],@K[2],@K[1],$T0 # align key
|
||||
?vperm @K[2],@D[0],@K[2],$T0
|
||||
?vperm @K[3],@D[1],@K[3],$T1 # align counter
|
||||
|
||||
lwz @d[0],0($ctr) # load counter to GPR
|
||||
lwz @d[1],4($ctr)
|
||||
vadduwm @K[3],@K[3],@K[5] # adjust AltiVec counter
|
||||
lwz @d[2],8($ctr)
|
||||
vadduwm @K[4],@K[3],@K[5]
|
||||
lwz @d[3],12($ctr)
|
||||
vadduwm @K[5],@K[4],@K[5]
|
||||
|
||||
vspltisw $twenty,-12 # synthesize constants
|
||||
vspltisw $twelve,12
|
||||
vspltisw $twenty5,-7
|
||||
#vspltisw $seven,7 # synthesized in the loop
|
||||
|
||||
vxor $T0,$T0,$T0 # 0x00..00
|
||||
vspltisw $outmask,-1 # 0xff..ff
|
||||
?lvsr $inpperm,0,$inp # prepare for unaligned load
|
||||
?lvsl $outperm,0,$out # prepare for unaligned store
|
||||
?vperm $outmask,$outmask,$T0,$outperm
|
||||
|
||||
be?vspltisb $T1,3 # 0x03..03
|
||||
be?vxor $inpperm,$inpperm,$T1 # swap bytes within words
|
||||
be?vxor $outperm,$outperm,$T1
|
||||
|
||||
b Loop_outer_vmx
|
||||
|
||||
.align 4
|
||||
Loop_outer_vmx:
|
||||
lis @x[0],0x6170 # synthesize sigma
|
||||
lis @x[1],0x3320
|
||||
vmr $A0,@K[0]
|
||||
lis @x[2],0x7962
|
||||
lis @x[3],0x6b20
|
||||
vmr $A1,@K[0]
|
||||
ori @x[0],@x[0],0x7865
|
||||
ori @x[1],@x[1],0x646e
|
||||
vmr $A2,@K[0]
|
||||
ori @x[2],@x[2],0x2d32
|
||||
ori @x[3],@x[3],0x6574
|
||||
vmr $B0,@K[1]
|
||||
|
||||
li r0,10 # inner loop counter
|
||||
lwz @x[4],0($key) # load key to GPR
|
||||
vmr $B1,@K[1]
|
||||
lwz @x[5],4($key)
|
||||
vmr $B2,@K[1]
|
||||
lwz @x[6],8($key)
|
||||
vmr $C0,@K[2]
|
||||
lwz @x[7],12($key)
|
||||
vmr $C1,@K[2]
|
||||
lwz @x[8],16($key)
|
||||
vmr $C2,@K[2]
|
||||
mr @x[12],@d[0] # copy GPR counter
|
||||
lwz @x[9],20($key)
|
||||
vmr $D0,@K[3]
|
||||
mr @x[13],@d[1]
|
||||
lwz @x[10],24($key)
|
||||
vmr $D1,@K[4]
|
||||
mr @x[14],@d[2]
|
||||
lwz @x[11],28($key)
|
||||
vmr $D2,@K[5]
|
||||
mr @x[15],@d[3]
|
||||
|
||||
mr @t[0],@x[4]
|
||||
mr @t[1],@x[5]
|
||||
mr @t[2],@x[6]
|
||||
mr @t[3],@x[7]
|
||||
vspltisw $seven,7
|
||||
|
||||
mtctr r0
|
||||
nop
|
||||
Loop_vmx:
|
||||
___
|
||||
my @thread0=&VMXROUND($A0,$B0,$C0,$D0,$T0,0);
|
||||
my @thread1=&VMXROUND($A1,$B1,$C1,$D1,$T1,0);
|
||||
my @thread2=&VMXROUND($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=&VMXROUND($A0,$B0,$C0,$D0,$T0,1);
|
||||
@thread1=&VMXROUND($A1,$B1,$C1,$D1,$T1,1);
|
||||
@thread2=&VMXROUND($A2,$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.=<<___;
|
||||
bdnz Loop_vmx
|
||||
|
||||
subi $len,$len,256 # $len-=256
|
||||
addi @x[0],@x[0],0x7865 # accumulate key block
|
||||
addi @x[1],@x[1],0x646e
|
||||
addi @x[2],@x[2],0x2d32
|
||||
addi @x[3],@x[3],0x6574
|
||||
addis @x[0],@x[0],0x6170
|
||||
addis @x[1],@x[1],0x3320
|
||||
addis @x[2],@x[2],0x7962
|
||||
addis @x[3],@x[3],0x6b20
|
||||
add @x[4],@x[4],@t[0]
|
||||
lwz @t[0],16($key)
|
||||
add @x[5],@x[5],@t[1]
|
||||
lwz @t[1],20($key)
|
||||
add @x[6],@x[6],@t[2]
|
||||
lwz @t[2],24($key)
|
||||
add @x[7],@x[7],@t[3]
|
||||
lwz @t[3],28($key)
|
||||
add @x[8],@x[8],@t[0]
|
||||
add @x[9],@x[9],@t[1]
|
||||
add @x[10],@x[10],@t[2]
|
||||
add @x[11],@x[11],@t[3]
|
||||
add @x[12],@x[12],@d[0]
|
||||
add @x[13],@x[13],@d[1]
|
||||
add @x[14],@x[14],@d[2]
|
||||
add @x[15],@x[15],@d[3]
|
||||
|
||||
vadduwm $A0,$A0,@K[0] # accumulate key block
|
||||
vadduwm $A1,$A1,@K[0]
|
||||
vadduwm $A2,$A2,@K[0]
|
||||
vadduwm $B0,$B0,@K[1]
|
||||
vadduwm $B1,$B1,@K[1]
|
||||
vadduwm $B2,$B2,@K[1]
|
||||
vadduwm $C0,$C0,@K[2]
|
||||
vadduwm $C1,$C1,@K[2]
|
||||
vadduwm $C2,$C2,@K[2]
|
||||
vadduwm $D0,$D0,@K[3]
|
||||
vadduwm $D1,$D1,@K[4]
|
||||
vadduwm $D2,$D2,@K[5]
|
||||
|
||||
addi @d[0],@d[0],4 # increment counter
|
||||
vadduwm @K[3],@K[3],$FOUR
|
||||
vadduwm @K[4],@K[4],$FOUR
|
||||
vadduwm @K[5],@K[5],$FOUR
|
||||
|
||||
___
|
||||
if (!$LITTLE_ENDIAN) { for($i=0;$i<16;$i++) { # flip byte order
|
||||
$code.=<<___;
|
||||
mr @t[$i&3],@x[$i]
|
||||
rotlwi @x[$i],@x[$i],8
|
||||
rlwimi @x[$i],@t[$i&3],24,0,7
|
||||
rlwimi @x[$i],@t[$i&3],24,16,23
|
||||
___
|
||||
} }
|
||||
$code.=<<___;
|
||||
lwz @t[0],0($inp) # load input, aligned or not
|
||||
lwz @t[1],4($inp)
|
||||
lwz @t[2],8($inp)
|
||||
lwz @t[3],12($inp)
|
||||
xor @x[0],@x[0],@t[0] # xor with input
|
||||
lwz @t[0],16($inp)
|
||||
xor @x[1],@x[1],@t[1]
|
||||
lwz @t[1],20($inp)
|
||||
xor @x[2],@x[2],@t[2]
|
||||
lwz @t[2],24($inp)
|
||||
xor @x[3],@x[3],@t[3]
|
||||
lwz @t[3],28($inp)
|
||||
xor @x[4],@x[4],@t[0]
|
||||
lwz @t[0],32($inp)
|
||||
xor @x[5],@x[5],@t[1]
|
||||
lwz @t[1],36($inp)
|
||||
xor @x[6],@x[6],@t[2]
|
||||
lwz @t[2],40($inp)
|
||||
xor @x[7],@x[7],@t[3]
|
||||
lwz @t[3],44($inp)
|
||||
xor @x[8],@x[8],@t[0]
|
||||
lwz @t[0],48($inp)
|
||||
xor @x[9],@x[9],@t[1]
|
||||
lwz @t[1],52($inp)
|
||||
xor @x[10],@x[10],@t[2]
|
||||
lwz @t[2],56($inp)
|
||||
xor @x[11],@x[11],@t[3]
|
||||
lwz @t[3],60($inp)
|
||||
xor @x[12],@x[12],@t[0]
|
||||
stw @x[0],0($out) # store output, aligned or not
|
||||
xor @x[13],@x[13],@t[1]
|
||||
stw @x[1],4($out)
|
||||
xor @x[14],@x[14],@t[2]
|
||||
stw @x[2],8($out)
|
||||
xor @x[15],@x[15],@t[3]
|
||||
stw @x[3],12($out)
|
||||
addi $inp,$inp,64
|
||||
stw @x[4],16($out)
|
||||
li @t[0],16
|
||||
stw @x[5],20($out)
|
||||
li @t[1],32
|
||||
stw @x[6],24($out)
|
||||
li @t[2],48
|
||||
stw @x[7],28($out)
|
||||
li @t[3],64
|
||||
stw @x[8],32($out)
|
||||
stw @x[9],36($out)
|
||||
stw @x[10],40($out)
|
||||
stw @x[11],44($out)
|
||||
stw @x[12],48($out)
|
||||
stw @x[13],52($out)
|
||||
stw @x[14],56($out)
|
||||
stw @x[15],60($out)
|
||||
addi $out,$out,64
|
||||
|
||||
lvx @D[0],0,$inp # load input
|
||||
lvx @D[1],@t[0],$inp
|
||||
lvx @D[2],@t[1],$inp
|
||||
lvx @D[3],@t[2],$inp
|
||||
lvx @D[4],@t[3],$inp
|
||||
addi $inp,$inp,64
|
||||
|
||||
?vperm @D[0],@D[1],@D[0],$inpperm # align input
|
||||
?vperm @D[1],@D[2],@D[1],$inpperm
|
||||
?vperm @D[2],@D[3],@D[2],$inpperm
|
||||
?vperm @D[3],@D[4],@D[3],$inpperm
|
||||
vxor $A0,$A0,@D[0] # xor with input
|
||||
vxor $B0,$B0,@D[1]
|
||||
lvx @D[1],@t[0],$inp # keep loading input
|
||||
vxor $C0,$C0,@D[2]
|
||||
lvx @D[2],@t[1],$inp
|
||||
vxor $D0,$D0,@D[3]
|
||||
lvx @D[3],@t[2],$inp
|
||||
lvx @D[0],@t[3],$inp
|
||||
addi $inp,$inp,64
|
||||
li @t[3],63 # 63 is not a typo
|
||||
vperm $A0,$A0,$A0,$outperm # pre-misalign output
|
||||
vperm $B0,$B0,$B0,$outperm
|
||||
vperm $C0,$C0,$C0,$outperm
|
||||
vperm $D0,$D0,$D0,$outperm
|
||||
|
||||
?vperm @D[4],@D[1],@D[4],$inpperm # align input
|
||||
?vperm @D[1],@D[2],@D[1],$inpperm
|
||||
?vperm @D[2],@D[3],@D[2],$inpperm
|
||||
?vperm @D[3],@D[0],@D[3],$inpperm
|
||||
vxor $A1,$A1,@D[4]
|
||||
vxor $B1,$B1,@D[1]
|
||||
lvx @D[1],@t[0],$inp # keep loading input
|
||||
vxor $C1,$C1,@D[2]
|
||||
lvx @D[2],@t[1],$inp
|
||||
vxor $D1,$D1,@D[3]
|
||||
lvx @D[3],@t[2],$inp
|
||||
lvx @D[4],@t[3],$inp # redundant in aligned case
|
||||
addi $inp,$inp,64
|
||||
vperm $A1,$A1,$A1,$outperm # pre-misalign output
|
||||
vperm $B1,$B1,$B1,$outperm
|
||||
vperm $C1,$C1,$C1,$outperm
|
||||
vperm $D1,$D1,$D1,$outperm
|
||||
|
||||
?vperm @D[0],@D[1],@D[0],$inpperm # align input
|
||||
?vperm @D[1],@D[2],@D[1],$inpperm
|
||||
?vperm @D[2],@D[3],@D[2],$inpperm
|
||||
?vperm @D[3],@D[4],@D[3],$inpperm
|
||||
vxor $A2,$A2,@D[0]
|
||||
vxor $B2,$B2,@D[1]
|
||||
vxor $C2,$C2,@D[2]
|
||||
vxor $D2,$D2,@D[3]
|
||||
vperm $A2,$A2,$A2,$outperm # pre-misalign output
|
||||
vperm $B2,$B2,$B2,$outperm
|
||||
vperm $C2,$C2,$C2,$outperm
|
||||
vperm $D2,$D2,$D2,$outperm
|
||||
|
||||
andi. @x[1],$out,15 # is $out aligned?
|
||||
mr @x[0],$out
|
||||
|
||||
vsel @D[0],$A0,$B0,$outmask # collect pre-misaligned output
|
||||
vsel @D[1],$B0,$C0,$outmask
|
||||
vsel @D[2],$C0,$D0,$outmask
|
||||
vsel @D[3],$D0,$A1,$outmask
|
||||
vsel $B0,$A1,$B1,$outmask
|
||||
vsel $C0,$B1,$C1,$outmask
|
||||
vsel $D0,$C1,$D1,$outmask
|
||||
vsel $A1,$D1,$A2,$outmask
|
||||
vsel $B1,$A2,$B2,$outmask
|
||||
vsel $C1,$B2,$C2,$outmask
|
||||
vsel $D1,$C2,$D2,$outmask
|
||||
|
||||
#stvx $A0,0,$out # take it easy on the edges
|
||||
stvx @D[0],@t[0],$out # store output
|
||||
stvx @D[1],@t[1],$out
|
||||
stvx @D[2],@t[2],$out
|
||||
addi $out,$out,64
|
||||
stvx @D[3],0,$out
|
||||
stvx $B0,@t[0],$out
|
||||
stvx $C0,@t[1],$out
|
||||
stvx $D0,@t[2],$out
|
||||
addi $out,$out,64
|
||||
stvx $A1,0,$out
|
||||
stvx $B1,@t[0],$out
|
||||
stvx $C1,@t[1],$out
|
||||
stvx $D1,@t[2],$out
|
||||
addi $out,$out,64
|
||||
|
||||
beq Laligned_vmx
|
||||
|
||||
sub @x[2],$out,@x[1] # in misaligned case edges
|
||||
li @x[3],0 # are written byte-by-byte
|
||||
Lunaligned_tail_vmx:
|
||||
stvebx $D2,@x[3],@x[2]
|
||||
addi @x[3],@x[3],1
|
||||
cmpw @x[3],@x[1]
|
||||
bne Lunaligned_tail_vmx
|
||||
|
||||
sub @x[2],@x[0],@x[1]
|
||||
Lunaligned_head_vmx:
|
||||
stvebx $A0,@x[1],@x[2]
|
||||
cmpwi @x[1],15
|
||||
addi @x[1],@x[1],1
|
||||
bne Lunaligned_head_vmx
|
||||
|
||||
${UCMP}i $len,255 # done with 256-byte blocks yet?
|
||||
bgt Loop_outer_vmx
|
||||
|
||||
b Ldone_vmx
|
||||
|
||||
.align 4
|
||||
Laligned_vmx:
|
||||
stvx $A0,0,@x[0] # head hexaword was not stored
|
||||
|
||||
${UCMP}i $len,255 # done with 256-byte blocks yet?
|
||||
bgt Loop_outer_vmx
|
||||
nop
|
||||
|
||||
Ldone_vmx:
|
||||
${UCMP}i $len,0 # done yet?
|
||||
bnel __ChaCha20_1x
|
||||
|
||||
lwz r12,`$FRAME-$SIZE_T*18-4`($sp) # pull vrsave
|
||||
li r10,`15+$LOCALS+64`
|
||||
li r11,`31+$LOCALS+64`
|
||||
mtspr 256,r12 # restore vrsave
|
||||
lvx v20,r10,$sp
|
||||
addi r10,r10,32
|
||||
lvx v21,r11,$sp
|
||||
addi r11,r11,32
|
||||
lvx v22,r10,$sp
|
||||
addi r10,r10,32
|
||||
lvx v23,r11,$sp
|
||||
addi r11,r11,32
|
||||
lvx v24,r10,$sp
|
||||
addi r10,r10,32
|
||||
lvx v25,r11,$sp
|
||||
addi r11,r11,32
|
||||
lvx v26,r10,$sp
|
||||
addi r10,r10,32
|
||||
lvx v27,r11,$sp
|
||||
addi r11,r11,32
|
||||
lvx v28,r10,$sp
|
||||
addi r10,r10,32
|
||||
lvx v29,r11,$sp
|
||||
addi r11,r11,32
|
||||
lvx v30,r10,$sp
|
||||
lvx v31,r11,$sp
|
||||
$POP r0, `$FRAME+$LRSAVE`($sp)
|
||||
$POP r14,`$FRAME-$SIZE_T*18`($sp)
|
||||
$POP r15,`$FRAME-$SIZE_T*17`($sp)
|
||||
$POP r16,`$FRAME-$SIZE_T*16`($sp)
|
||||
$POP r17,`$FRAME-$SIZE_T*15`($sp)
|
||||
$POP r18,`$FRAME-$SIZE_T*14`($sp)
|
||||
$POP r19,`$FRAME-$SIZE_T*13`($sp)
|
||||
$POP r20,`$FRAME-$SIZE_T*12`($sp)
|
||||
$POP r21,`$FRAME-$SIZE_T*11`($sp)
|
||||
$POP r22,`$FRAME-$SIZE_T*10`($sp)
|
||||
$POP r23,`$FRAME-$SIZE_T*9`($sp)
|
||||
$POP r24,`$FRAME-$SIZE_T*8`($sp)
|
||||
$POP r25,`$FRAME-$SIZE_T*7`($sp)
|
||||
$POP r26,`$FRAME-$SIZE_T*6`($sp)
|
||||
$POP r27,`$FRAME-$SIZE_T*5`($sp)
|
||||
$POP r28,`$FRAME-$SIZE_T*4`($sp)
|
||||
$POP r29,`$FRAME-$SIZE_T*3`($sp)
|
||||
$POP r30,`$FRAME-$SIZE_T*2`($sp)
|
||||
$POP r31,`$FRAME-$SIZE_T*1`($sp)
|
||||
mtlr r0
|
||||
addi $sp,$sp,$FRAME
|
||||
blr
|
||||
.long 0
|
||||
.byte 0,12,0x04,1,0x80,18,5,0
|
||||
.long 0
|
||||
.size .ChaCha20_ctr32_vmx,.-.ChaCha20_ctr32_vmx
|
||||
|
||||
.align 5
|
||||
Lconsts:
|
||||
mflr r0
|
||||
bcl 20,31,\$+4
|
||||
mflr r12 #vvvvv "distance between . and _vpaes_consts
|
||||
addi r12,r12,`64-8`
|
||||
mtlr r0
|
||||
blr
|
||||
.long 0
|
||||
.byte 0,12,0x14,0,0,0,0,0
|
||||
.space `64-9*4`
|
||||
Lsigma:
|
||||
.long 0x61707865,0x3320646e,0x79622d32,0x6b206574
|
||||
.long 1,0,0,0
|
||||
.long 4,0,0,0
|
||||
___
|
||||
$code.=<<___ if ($LITTLE_ENDIAN);
|
||||
.long 0x0e0f0c0d,0x0a0b0809,0x06070405,0x02030001
|
||||
.long 0x0d0e0f0c,0x090a0b08,0x05060704,0x01020300
|
||||
___
|
||||
$code.=<<___ if (!$LITTLE_ENDIAN); # flipped words
|
||||
.long 0x02030001,0x06070405,0x0a0b0809,0x0e0f0c0d
|
||||
.long 0x01020300,0x05060704,0x090a0b08,0x0d0e0f0c
|
||||
___
|
||||
$code.=<<___;
|
||||
.asciz "ChaCha20 for PowerPC/AltiVec, CRYPTOGAMS by <appro\@openssl.org>"
|
||||
.align 2
|
||||
___
|
||||
}}}
|
||||
|
||||
foreach (split("\n",$code)) {
|
||||
s/\`([^\`]*)\`/eval $1/ge;
|
||||
|
||||
# instructions prefixed with '?' are endian-specific and need
|
||||
# to be adjusted accordingly...
|
||||
if ($flavour !~ /le$/) { # big-endian
|
||||
s/be\?// or
|
||||
s/le\?/#le#/ or
|
||||
s/\?lvsr/lvsl/ or
|
||||
s/\?lvsl/lvsr/ or
|
||||
s/\?(vperm\s+v[0-9]+,\s*)(v[0-9]+,\s*)(v[0-9]+,\s*)(v[0-9]+)/$1$3$2$4/ or
|
||||
s/(vsldoi\s+v[0-9]+,\s*)(v[0-9]+,)\s*(v[0-9]+,\s*)([0-9]+)/$1$3$2 16-$4/;
|
||||
} else { # little-endian
|
||||
s/le\?// or
|
||||
s/be\?/#be#/ or
|
||||
s/\?([a-z]+)/$1/;
|
||||
}
|
||||
|
||||
print $_,"\n";
|
||||
}
|
||||
|
||||
close STDOUT;
|
||||
|
|
@ -8,6 +8,8 @@ BEGINRAW[Makefile(unix)]
|
|||
$(PERL) {- $sourcedir -}/asm/chacha-x86.pl $(PERLASM_SCHEME) $(CFLAGS) $(PROCESSOR) > $@
|
||||
{- $builddir -}/chacha-x86_64.s: {- $sourcedir -}/asm/chacha-x86_64.pl
|
||||
$(PERL) {- $sourcedir -}/asm/chacha-x86_64.pl $(PERLASM_SCHEME) > $@
|
||||
{- $builddir -}/chacha-ppc.s: {- $sourcedir -}/asm/chacha-ppc.pl
|
||||
$(PERL) {- $sourcedir -}/asm/chacha-ppc.pl $(PERLASM_SCHEME) $@
|
||||
|
||||
{- $builddir -}/chacha-%.S: {- $sourcedir -}/asm/chacha-%.pl
|
||||
$(PERL) $< $(PERLASM_SCHEME) $@
|
||||
|
|
|
|||
|
|
@ -42,6 +42,10 @@ poly1305-x86.s: asm/poly1305-x86.pl
|
|||
$(PERL) asm/poly1305-x86.pl $(PERLASM_SCHEME) $(CFLAGS) $(PROCESSOR) > $@
|
||||
poly1305-x86_64.s: asm/poly1305-x86_64.pl
|
||||
$(PERL) asm/poly1305-x86_64.pl $(PERLASM_SCHEME) > $@
|
||||
poly1305-ppc.s: asm/poly1305-ppc.pl
|
||||
$(PERL) asm/poly1305-ppc.pl $(PERLASM_SCHEME) $@
|
||||
poly1305-ppcfp.s: asm/poly1305-ppcfp.pl
|
||||
$(PERL) asm/poly1305-ppcfp.pl $(PERLASM_SCHEME) $@
|
||||
|
||||
poly1305-%.S: asm/poly1305-%.pl; $(PERL) $< $(PERLASM_SCHEME) $@
|
||||
|
||||
|
|
|
|||
636
crypto/poly1305/asm/poly1305-ppc.pl
Executable file
636
crypto/poly1305/asm/poly1305-ppc.pl
Executable file
|
|
@ -0,0 +1,636 @@
|
|||
#!/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/.
|
||||
# ====================================================================
|
||||
#
|
||||
# This module implements Poly1305 hash for PowerPC.
|
||||
#
|
||||
# June 2015
|
||||
#
|
||||
# Numbers are cycles per processed byte with poly1305_blocks alone,
|
||||
# and improvement coefficients relative to gcc-generated code.
|
||||
#
|
||||
# -m32 -m64
|
||||
#
|
||||
# Freescale e300 14.8/+80% -
|
||||
# PPC74x0 7.40/+60% -
|
||||
# PPC970 7.20/+114% 3.51/+205%
|
||||
# POWER6 3.96/+250% 2.02/+170%
|
||||
# POWER7 3.67/+260% 1.87/+100%
|
||||
# POWER8 - 2.13/+200%
|
||||
#
|
||||
# Do we need floating-point implementation for PPC? Results presented
|
||||
# in poly1305_ieee754.c are tricky to compare to, because they are for
|
||||
# compiler-generated code. On the other hand it's known that floating-
|
||||
# point performance can be dominated by FPU latency, which means that
|
||||
# there is limit even for ideally optimized (and even vectorized) code.
|
||||
# And this limit is estimated to be higher than above -m64 results. Or
|
||||
# in other words floating-point implementation can be meaningful to
|
||||
# consider only in 32-bit application context. We probably have to
|
||||
# recognize that 32-bit builds are getting less popular on high-end
|
||||
# systems and therefore tend to target embedded ones, which might not
|
||||
# even have FPU...
|
||||
#
|
||||
# On side note, Power ISA 2.07 enables vector base 2^26 implementation,
|
||||
# and POWER8 might have capacity to break 1.0 cycle per byte barrier...
|
||||
|
||||
$flavour = shift;
|
||||
|
||||
if ($flavour =~ /64/) {
|
||||
$SIZE_T =8;
|
||||
$LRSAVE =2*$SIZE_T;
|
||||
$UCMP ="cmpld";
|
||||
$STU ="stdu";
|
||||
$POP ="ld";
|
||||
$PUSH ="std";
|
||||
} elsif ($flavour =~ /32/) {
|
||||
$SIZE_T =4;
|
||||
$LRSAVE =$SIZE_T;
|
||||
$UCMP ="cmplw";
|
||||
$STU ="stwu";
|
||||
$POP ="lwz";
|
||||
$PUSH ="stw";
|
||||
} else { die "nonsense $flavour"; }
|
||||
|
||||
# Define endianess based on flavour
|
||||
# i.e.: linux64le
|
||||
$LITTLE_ENDIAN = ($flavour=~/le$/) ? $SIZE_T : 0;
|
||||
|
||||
$0 =~ m/(.*[\/\\])[^\/\\]+$/; $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 ".shift || die "can't call $xlate: $!";
|
||||
|
||||
$FRAME=24*$SIZE_T;
|
||||
|
||||
$sp="r1";
|
||||
my ($ctx,$inp,$len,$padbit) = map("r$_",(3..6));
|
||||
my ($mac,$nonce)=($inp,$len);
|
||||
my $mask = "r0";
|
||||
|
||||
$code=<<___;
|
||||
.machine "any"
|
||||
.text
|
||||
___
|
||||
if ($flavour =~ /64/) {
|
||||
###############################################################################
|
||||
# base 2^64 implementation
|
||||
|
||||
my ($h0,$h1,$h2,$d0,$d1,$d2, $r0,$r1,$s1, $t0,$t1) = map("r$_",(7..12,27..31));
|
||||
|
||||
$code.=<<___;
|
||||
.globl .poly1305_init_int
|
||||
.align 4
|
||||
.poly1305_init_int:
|
||||
xor r0,r0,r0
|
||||
std r0,0($ctx) # zero hash value
|
||||
std r0,8($ctx)
|
||||
std r0,16($ctx)
|
||||
|
||||
$UCMP $inp,r0
|
||||
beq- Lno_key
|
||||
___
|
||||
$code.=<<___ if ($LITTLE_ENDIAN);
|
||||
ld $d0,0($inp) # load key material
|
||||
ld $d1,8($inp)
|
||||
___
|
||||
$code.=<<___ if (!$LITTLE_ENDIAN);
|
||||
li $h0,4
|
||||
lwbrx $d0,0,$inp # load key material
|
||||
li $d1,8
|
||||
lwbrx $h0,$h0,$inp
|
||||
li $h1,12
|
||||
lwbrx $d1,$d1,$inp
|
||||
lwbrx $h1,$h1,$inp
|
||||
insrdi $d0,$h0,32,0
|
||||
insrdi $d1,$h1,32,0
|
||||
___
|
||||
$code.=<<___;
|
||||
lis $h1,0xfff # 0x0fff0000
|
||||
ori $h1,$h1,0xfffc # 0x0ffffffc
|
||||
insrdi $h1,$h1,32,0 # 0x0ffffffc0ffffffc
|
||||
ori $h0,$h1,3 # 0x0ffffffc0fffffff
|
||||
|
||||
and $d0,$d0,$h0
|
||||
and $d1,$d1,$h1
|
||||
|
||||
std $d0,32($ctx) # store key
|
||||
std $d1,40($ctx)
|
||||
|
||||
Lno_key:
|
||||
xor r3,r3,r3
|
||||
blr
|
||||
.long 0
|
||||
.byte 0,12,0x14,0,0,0,2,0
|
||||
.size .poly1305_init_int,.-.poly1305_init_int
|
||||
|
||||
.globl .poly1305_blocks
|
||||
.align 4
|
||||
.poly1305_blocks:
|
||||
srdi. $len,$len,4
|
||||
beq- Labort
|
||||
|
||||
$STU $sp,-$FRAME($sp)
|
||||
mflr r0
|
||||
$PUSH r27,`$FRAME-$SIZE_T*5`($sp)
|
||||
$PUSH r28,`$FRAME-$SIZE_T*4`($sp)
|
||||
$PUSH r29,`$FRAME-$SIZE_T*3`($sp)
|
||||
$PUSH r30,`$FRAME-$SIZE_T*2`($sp)
|
||||
$PUSH r31,`$FRAME-$SIZE_T*1`($sp)
|
||||
$PUSH r0,`$FRAME+$LRSAVE`($sp)
|
||||
|
||||
ld $r0,32($ctx) # load key
|
||||
ld $r1,40($ctx)
|
||||
|
||||
ld $h0,0($ctx) # load hash value
|
||||
ld $h1,8($ctx)
|
||||
ld $h2,16($ctx)
|
||||
|
||||
srdi $s1,$r1,2
|
||||
mtctr $len
|
||||
add $s1,$s1,$r1 # s1 = r1 + r1>>2
|
||||
li $mask,3
|
||||
b Loop
|
||||
|
||||
.align 4
|
||||
Loop:
|
||||
___
|
||||
$code.=<<___ if ($LITTLE_ENDIAN);
|
||||
ld $t0,0($inp) # load input
|
||||
ld $t1,8($inp)
|
||||
___
|
||||
$code.=<<___ if (!$LITTLE_ENDIAN);
|
||||
li $d0,4
|
||||
lwbrx $t0,0,$inp # load input
|
||||
li $t1,8
|
||||
lwbrx $d0,$d0,$inp
|
||||
li $d1,12
|
||||
lwbrx $t1,$t1,$inp
|
||||
lwbrx $d1,$d1,$inp
|
||||
insrdi $t0,$d0,32,0
|
||||
insrdi $t1,$d1,32,0
|
||||
___
|
||||
$code.=<<___;
|
||||
addi $inp,$inp,16
|
||||
|
||||
addc $h0,$h0,$t0 # accumulate input
|
||||
adde $h1,$h1,$t1
|
||||
|
||||
mulld $d0,$h0,$r0 # h0*r0
|
||||
mulhdu $d1,$h0,$r0
|
||||
adde $h2,$h2,$padbit
|
||||
|
||||
mulld $t0,$h1,$s1 # h1*5*r1
|
||||
mulhdu $t1,$h1,$s1
|
||||
addc $d0,$d0,$t0
|
||||
adde $d1,$d1,$t1
|
||||
|
||||
mulld $t0,$h0,$r1 # h0*r1
|
||||
mulhdu $d2,$h0,$r1
|
||||
addc $d1,$d1,$t0
|
||||
addze $d2,$d2
|
||||
|
||||
mulld $t0,$h1,$r0 # h1*r0
|
||||
mulhdu $t1,$h1,$r0
|
||||
addc $d1,$d1,$t0
|
||||
adde $d2,$d2,$t1
|
||||
|
||||
mulld $t0,$h2,$s1 # h2*5*r1
|
||||
mulld $t1,$h2,$r0 # h2*r0
|
||||
addc $d1,$d1,$t0
|
||||
adde $d2,$d2,$t1
|
||||
|
||||
andc $t0,$d2,$mask # final reduction step
|
||||
and $h2,$d2,$mask
|
||||
srdi $t1,$t0,2
|
||||
add $t0,$t0,$t1
|
||||
addc $h0,$d0,$t0
|
||||
addze $h1,$d1
|
||||
|
||||
bdnz Loop
|
||||
|
||||
std $h0,0($ctx) # store hash value
|
||||
std $h1,8($ctx)
|
||||
std $h2,16($ctx)
|
||||
|
||||
$POP r27,`$FRAME-$SIZE_T*5`($sp)
|
||||
$POP r28,`$FRAME-$SIZE_T*4`($sp)
|
||||
$POP r29,`$FRAME-$SIZE_T*3`($sp)
|
||||
$POP r30,`$FRAME-$SIZE_T*2`($sp)
|
||||
$POP r31,`$FRAME-$SIZE_T*1`($sp)
|
||||
addi $sp,$sp,$FRAME
|
||||
Labort:
|
||||
blr
|
||||
.long 0
|
||||
.byte 0,12,4,1,0x80,5,4,0
|
||||
.size .poly1305_blocks,.-.poly1305_blocks
|
||||
|
||||
.globl .poly1305_emit
|
||||
.align 4
|
||||
.poly1305_emit:
|
||||
ld $h0,0($ctx) # load hash
|
||||
ld $h1,8($ctx)
|
||||
ld $h2,16($ctx)
|
||||
ld $padbit,0($nonce) # load nonce
|
||||
ld $nonce,8($nonce)
|
||||
|
||||
addic $d0,$h0,5 # compare to modulus
|
||||
addze $d1,$h1
|
||||
addze $d2,$h2
|
||||
|
||||
srdi $mask,$d2,2 # did it carry/borrow?
|
||||
neg $mask,$mask
|
||||
|
||||
andc $h0,$h0,$mask
|
||||
and $d0,$d0,$mask
|
||||
andc $h1,$h1,$mask
|
||||
and $d1,$d1,$mask
|
||||
or $h0,$h0,$d0
|
||||
or $h1,$h1,$d1
|
||||
___
|
||||
$code.=<<___ if (!$LITTLE_ENDIAN);
|
||||
rotldi $padbit,$padbit,32 # flip nonce words
|
||||
rotldi $nonce,$nonce,32
|
||||
___
|
||||
$code.=<<___;
|
||||
addc $h0,$h0,$padbit # accumulate nonce
|
||||
adde $h1,$h1,$nonce
|
||||
___
|
||||
$code.=<<___ if ($LITTLE_ENDIAN);
|
||||
std $h0,0($mac) # write result
|
||||
std $h1,8($mac)
|
||||
___
|
||||
$code.=<<___ if (!$LITTLE_ENDIAN);
|
||||
extrdi r0,$h0,32,0
|
||||
li $d0,4
|
||||
stwbrx $h0,0,$mac # write result
|
||||
extrdi $h0,$h1,32,0
|
||||
li $d1,8
|
||||
stwbrx r0,$d0,$mac
|
||||
li $d2,12
|
||||
stwbrx $h1,$d1,$mac
|
||||
stwbrx $h0,$d2,$mac
|
||||
___
|
||||
$code.=<<___;
|
||||
blr
|
||||
.long 0
|
||||
.byte 0,12,0x14,0,0,0,3,0
|
||||
.size .poly1305_emit,.-.poly1305_emit
|
||||
___
|
||||
} else {
|
||||
###############################################################################
|
||||
# base 2^32 implementation
|
||||
|
||||
my ($h0,$h1,$h2,$h3,$h4, $r0,$r1,$r2,$r3, $s1,$s2,$s3,
|
||||
$t0,$t1,$t2,$t3, $D0,$D1,$D2,$D3, $d0,$d1,$d2,$d3
|
||||
) = map("r$_",(7..12,14..31));
|
||||
|
||||
$code.=<<___;
|
||||
.globl .poly1305_init_int
|
||||
.align 4
|
||||
.poly1305_init_int:
|
||||
xor r0,r0,r0
|
||||
stw r0,0($ctx) # zero hash value
|
||||
stw r0,4($ctx)
|
||||
stw r0,8($ctx)
|
||||
stw r0,12($ctx)
|
||||
stw r0,16($ctx)
|
||||
|
||||
$UCMP $inp,r0
|
||||
beq- Lno_key
|
||||
___
|
||||
$code.=<<___ if ($LITTLE_ENDIAN);
|
||||
lw $h0,0($inp) # load key material
|
||||
lw $h1,4($inp)
|
||||
lw $h2,8($inp)
|
||||
lw $h3,12($inp)
|
||||
___
|
||||
$code.=<<___ if (!$LITTLE_ENDIAN);
|
||||
li $h1,4
|
||||
lwbrx $h0,0,$inp # load key material
|
||||
li $h2,8
|
||||
lwbrx $h1,$h1,$inp
|
||||
li $h3,12
|
||||
lwbrx $h2,$h2,$inp
|
||||
lwbrx $h3,$h3,$inp
|
||||
___
|
||||
$code.=<<___;
|
||||
lis $mask,0xf000 # 0xf0000000
|
||||
li $r0,-4
|
||||
andc $r0,$r0,$mask # 0x0ffffffc
|
||||
|
||||
andc $h0,$h0,$mask
|
||||
and $h1,$h1,$r0
|
||||
and $h2,$h2,$r0
|
||||
and $h3,$h3,$r0
|
||||
|
||||
stw $h0,32($ctx) # store key
|
||||
stw $h1,36($ctx)
|
||||
stw $h2,40($ctx)
|
||||
stw $h3,44($ctx)
|
||||
|
||||
Lno_key:
|
||||
xor r3,r3,r3
|
||||
blr
|
||||
.long 0
|
||||
.byte 0,12,0x14,0,0,0,2,0
|
||||
.size .poly1305_init_int,.-.poly1305_init_int
|
||||
|
||||
.globl .poly1305_blocks
|
||||
.align 4
|
||||
.poly1305_blocks:
|
||||
srwi. $len,$len,4
|
||||
beq- Labort
|
||||
|
||||
$STU $sp,-$FRAME($sp)
|
||||
mflr r0
|
||||
$PUSH r14,`$FRAME-$SIZE_T*18`($sp)
|
||||
$PUSH r15,`$FRAME-$SIZE_T*17`($sp)
|
||||
$PUSH r16,`$FRAME-$SIZE_T*16`($sp)
|
||||
$PUSH r17,`$FRAME-$SIZE_T*15`($sp)
|
||||
$PUSH r18,`$FRAME-$SIZE_T*14`($sp)
|
||||
$PUSH r19,`$FRAME-$SIZE_T*13`($sp)
|
||||
$PUSH r20,`$FRAME-$SIZE_T*12`($sp)
|
||||
$PUSH r21,`$FRAME-$SIZE_T*11`($sp)
|
||||
$PUSH r22,`$FRAME-$SIZE_T*10`($sp)
|
||||
$PUSH r23,`$FRAME-$SIZE_T*9`($sp)
|
||||
$PUSH r24,`$FRAME-$SIZE_T*8`($sp)
|
||||
$PUSH r25,`$FRAME-$SIZE_T*7`($sp)
|
||||
$PUSH r26,`$FRAME-$SIZE_T*6`($sp)
|
||||
$PUSH r27,`$FRAME-$SIZE_T*5`($sp)
|
||||
$PUSH r28,`$FRAME-$SIZE_T*4`($sp)
|
||||
$PUSH r29,`$FRAME-$SIZE_T*3`($sp)
|
||||
$PUSH r30,`$FRAME-$SIZE_T*2`($sp)
|
||||
$PUSH r31,`$FRAME-$SIZE_T*1`($sp)
|
||||
$PUSH r0,`$FRAME+$LRSAVE`($sp)
|
||||
|
||||
lwz $r0,32($ctx) # load key
|
||||
lwz $r1,36($ctx)
|
||||
lwz $r2,40($ctx)
|
||||
lwz $r3,44($ctx)
|
||||
|
||||
lwz $h0,0($ctx) # load hash value
|
||||
lwz $h1,4($ctx)
|
||||
lwz $h2,8($ctx)
|
||||
lwz $h3,12($ctx)
|
||||
lwz $h4,16($ctx)
|
||||
|
||||
srwi $s1,$r1,2
|
||||
srwi $s2,$r2,2
|
||||
srwi $s3,$r3,2
|
||||
add $s1,$s1,$r1 # si = ri + ri>>2
|
||||
add $s2,$s2,$r2
|
||||
add $s3,$s3,$r3
|
||||
mtctr $len
|
||||
li $mask,3
|
||||
b Loop
|
||||
|
||||
.align 4
|
||||
Loop:
|
||||
___
|
||||
$code.=<<___ if ($LITTLE_ENDIAN);
|
||||
lwz $d0,0($inp) # load input
|
||||
lwz $d1,4($inp)
|
||||
lwz $d2,8($inp)
|
||||
lwz $d3,12($inp)
|
||||
___
|
||||
$code.=<<___ if (!$LITTLE_ENDIAN);
|
||||
li $d1,4
|
||||
lwbrx $d0,0,$inp # load input
|
||||
li $d2,8
|
||||
lwbrx $d1,$d1,$inp
|
||||
li $d3,12
|
||||
lwbrx $d2,$d2,$inp
|
||||
lwbrx $d3,$d3,$inp
|
||||
___
|
||||
$code.=<<___;
|
||||
addi $inp,$inp,16
|
||||
|
||||
addc $h0,$h0,$d0 # accumulate input
|
||||
adde $h1,$h1,$d1
|
||||
adde $h2,$h2,$d2
|
||||
|
||||
mullw $d0,$h0,$r0 # h0*r0
|
||||
mulhwu $D0,$h0,$r0
|
||||
|
||||
mullw $d1,$h0,$r1 # h0*r1
|
||||
mulhwu $D1,$h0,$r1
|
||||
|
||||
mullw $d2,$h0,$r2 # h0*r2
|
||||
mulhwu $D2,$h0,$r2
|
||||
|
||||
adde $h3,$h3,$d3
|
||||
adde $h4,$h4,$padbit
|
||||
|
||||
mullw $d3,$h0,$r3 # h0*r3
|
||||
mulhwu $D3,$h0,$r3
|
||||
|
||||
mullw $t0,$h1,$s3 # h1*s3
|
||||
mulhwu $t1,$h1,$s3
|
||||
|
||||
mullw $t2,$h1,$r0 # h1*r0
|
||||
mulhwu $t3,$h1,$r0
|
||||
addc $d0,$d0,$t0
|
||||
adde $D0,$D0,$t1
|
||||
|
||||
mullw $t0,$h1,$r1 # h1*r1
|
||||
mulhwu $t1,$h1,$r1
|
||||
addc $d1,$d1,$t2
|
||||
adde $D1,$D1,$t3
|
||||
|
||||
mullw $t2,$h1,$r2 # h1*r2
|
||||
mulhwu $t3,$h1,$r2
|
||||
addc $d2,$d2,$t0
|
||||
adde $D2,$D2,$t1
|
||||
|
||||
mullw $t0,$h2,$s2 # h2*s2
|
||||
mulhwu $t1,$h2,$s2
|
||||
addc $d3,$d3,$t2
|
||||
adde $D3,$D3,$t3
|
||||
|
||||
mullw $t2,$h2,$s3 # h2*s3
|
||||
mulhwu $t3,$h2,$s3
|
||||
addc $d0,$d0,$t0
|
||||
adde $D0,$D0,$t1
|
||||
|
||||
mullw $t0,$h2,$r0 # h2*r0
|
||||
mulhwu $t1,$h2,$r0
|
||||
addc $d1,$d1,$t2
|
||||
adde $D1,$D1,$t3
|
||||
|
||||
mullw $t2,$h2,$r1 # h2*r1
|
||||
mulhwu $t3,$h2,$r1
|
||||
addc $d2,$d2,$t0
|
||||
adde $D2,$D2,$t1
|
||||
|
||||
mullw $t0,$h3,$s1 # h3*s1
|
||||
mulhwu $t1,$h3,$s1
|
||||
addc $d3,$d3,$t2
|
||||
adde $D3,$D3,$t3
|
||||
|
||||
mullw $t2,$h3,$s2 # h3*s2
|
||||
mulhwu $t3,$h3,$s2
|
||||
addc $d0,$d0,$t0
|
||||
adde $D0,$D0,$t1
|
||||
|
||||
mullw $t0,$h3,$s3 # h3*s3
|
||||
mulhwu $t1,$h3,$s3
|
||||
addc $d1,$d1,$t2
|
||||
adde $D1,$D1,$t3
|
||||
|
||||
mullw $t2,$h3,$r0 # h3*r0
|
||||
mulhwu $t3,$h3,$r0
|
||||
addc $d2,$d2,$t0
|
||||
adde $D2,$D2,$t1
|
||||
|
||||
mullw $t0,$h4,$s1 # h4*s1
|
||||
addc $d3,$d3,$t2
|
||||
adde $D3,$D3,$t3
|
||||
addc $d1,$d1,$t0
|
||||
|
||||
mullw $t1,$h4,$s2 # h4*s2
|
||||
addze $D1,$D1
|
||||
addc $d2,$d2,$t1
|
||||
addze $D2,$D2
|
||||
|
||||
mullw $t2,$h4,$s3 # h4*s3
|
||||
addc $d3,$d3,$t2
|
||||
addze $D3,$D3
|
||||
|
||||
mullw $h4,$h4,$r0 # h4*r0
|
||||
|
||||
addc $h1,$d1,$D0
|
||||
adde $h2,$d2,$D1
|
||||
adde $h3,$d3,$D2
|
||||
adde $h4,$h4,$D3
|
||||
|
||||
andc $D0,$h4,$mask # final reduction step
|
||||
and $h4,$h4,$mask
|
||||
srwi $D1,$D0,2
|
||||
add $D0,$D0,$D1
|
||||
addc $h0,$d0,$D0
|
||||
addze $h1,$h1
|
||||
addze $h2,$h2
|
||||
addze $h3,$h3
|
||||
|
||||
bdnz Loop
|
||||
|
||||
stw $h0,0($ctx) # store hash value
|
||||
stw $h1,4($ctx)
|
||||
stw $h2,8($ctx)
|
||||
stw $h3,12($ctx)
|
||||
stw $h4,16($ctx)
|
||||
|
||||
$POP r14,`$FRAME-$SIZE_T*18`($sp)
|
||||
$POP r15,`$FRAME-$SIZE_T*17`($sp)
|
||||
$POP r16,`$FRAME-$SIZE_T*16`($sp)
|
||||
$POP r17,`$FRAME-$SIZE_T*15`($sp)
|
||||
$POP r18,`$FRAME-$SIZE_T*14`($sp)
|
||||
$POP r19,`$FRAME-$SIZE_T*13`($sp)
|
||||
$POP r20,`$FRAME-$SIZE_T*12`($sp)
|
||||
$POP r21,`$FRAME-$SIZE_T*11`($sp)
|
||||
$POP r22,`$FRAME-$SIZE_T*10`($sp)
|
||||
$POP r23,`$FRAME-$SIZE_T*9`($sp)
|
||||
$POP r24,`$FRAME-$SIZE_T*8`($sp)
|
||||
$POP r25,`$FRAME-$SIZE_T*7`($sp)
|
||||
$POP r26,`$FRAME-$SIZE_T*6`($sp)
|
||||
$POP r27,`$FRAME-$SIZE_T*5`($sp)
|
||||
$POP r28,`$FRAME-$SIZE_T*4`($sp)
|
||||
$POP r29,`$FRAME-$SIZE_T*3`($sp)
|
||||
$POP r30,`$FRAME-$SIZE_T*2`($sp)
|
||||
$POP r31,`$FRAME-$SIZE_T*1`($sp)
|
||||
addi $sp,$sp,$FRAME
|
||||
Labort:
|
||||
blr
|
||||
.long 0
|
||||
.byte 0,12,4,1,0x80,18,4,0
|
||||
.size .poly1305_blocks,.-.poly1305_blocks
|
||||
|
||||
.globl .poly1305_emit
|
||||
.align 4
|
||||
.poly1305_emit:
|
||||
$STU $sp,-$FRAME($sp)
|
||||
mflr r0
|
||||
$PUSH r28,`$FRAME-$SIZE_T*4`($sp)
|
||||
$PUSH r29,`$FRAME-$SIZE_T*3`($sp)
|
||||
$PUSH r30,`$FRAME-$SIZE_T*2`($sp)
|
||||
$PUSH r31,`$FRAME-$SIZE_T*1`($sp)
|
||||
$PUSH r0,`$FRAME+$LRSAVE`($sp)
|
||||
|
||||
lwz $h0,0($ctx) # load hash
|
||||
lwz $h1,4($ctx)
|
||||
lwz $h2,8($ctx)
|
||||
lwz $h3,12($ctx)
|
||||
lwz $h4,16($ctx)
|
||||
|
||||
addic $d0,$h0,5 # compare to modulus
|
||||
addze $d1,$h1
|
||||
addze $d2,$h2
|
||||
addze $d3,$h3
|
||||
addze $mask,$h4
|
||||
|
||||
srwi $mask,$mask,2 # did it carry/borrow?
|
||||
neg $mask,$mask
|
||||
|
||||
andc $h0,$h0,$mask
|
||||
and $d0,$d0,$mask
|
||||
andc $h1,$h1,$mask
|
||||
and $d1,$d1,$mask
|
||||
or $h0,$h0,$d0
|
||||
lwz $d0,0($nonce) # load nonce
|
||||
andc $h2,$h2,$mask
|
||||
and $d2,$d2,$mask
|
||||
or $h1,$h1,$d1
|
||||
lwz $d1,4($nonce)
|
||||
andc $h3,$h3,$mask
|
||||
and $d3,$d3,$mask
|
||||
or $h2,$h2,$d2
|
||||
lwz $d2,8($nonce)
|
||||
or $h3,$h3,$d3
|
||||
lwz $d3,12($nonce)
|
||||
|
||||
addc $h0,$h0,$d0 # accumulate nonce
|
||||
adde $h1,$h1,$d1
|
||||
adde $h2,$h2,$d2
|
||||
adde $h3,$h3,$d3
|
||||
___
|
||||
$code.=<<___ if ($LITTLE_ENDIAN);
|
||||
stw $h0,0($mac) # write result
|
||||
stw $h1,4($mac)
|
||||
stw $h2,8($mac)
|
||||
stw $h3,12($mac)
|
||||
___
|
||||
$code.=<<___ if (!$LITTLE_ENDIAN);
|
||||
li $d1,4
|
||||
stwbrx $h0,0,$mac # write result
|
||||
li $d2,8
|
||||
stwbrx $h1,$d1,$mac
|
||||
li $d3,12
|
||||
stwbrx $h2,$d2,$mac
|
||||
stwbrx $h3,$d3,$mac
|
||||
___
|
||||
$code.=<<___;
|
||||
$POP r28,`$FRAME-$SIZE_T*4`($sp)
|
||||
$POP r29,`$FRAME-$SIZE_T*3`($sp)
|
||||
$POP r30,`$FRAME-$SIZE_T*2`($sp)
|
||||
$POP r31,`$FRAME-$SIZE_T*1`($sp)
|
||||
addi $sp,$sp,$FRAME
|
||||
blr
|
||||
.long 0
|
||||
.byte 0,12,4,1,0x80,4,3,0
|
||||
.size .poly1305_emit,.-.poly1305_emit
|
||||
___
|
||||
}
|
||||
$code.=<<___;
|
||||
.asciz "Poly1305 for PPC, CRYPTOGAMS by <appro\@openssl.org>"
|
||||
___
|
||||
|
||||
$code =~ s/\`([^\`]*)\`/eval $1/gem;
|
||||
print $code;
|
||||
close STDOUT;
|
||||
732
crypto/poly1305/asm/poly1305-ppcfp.pl
Executable file
732
crypto/poly1305/asm/poly1305-ppcfp.pl
Executable file
|
|
@ -0,0 +1,732 @@
|
|||
#!/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/.
|
||||
# ====================================================================
|
||||
#
|
||||
# This module implements Poly1305 hash for PowerPC FPU.
|
||||
#
|
||||
# June 2015
|
||||
#
|
||||
# Numbers are cycles per processed byte with poly1305_blocks alone,
|
||||
# and improvement coefficients relative to gcc-generated code.
|
||||
#
|
||||
# Freescale e300 9.78/+30%
|
||||
# PPC74x0 7.08/+50%
|
||||
# PPC970 6.24/+80%
|
||||
# POWER7 3.50/+30%
|
||||
# POWER8 3.75/+10%
|
||||
|
||||
$flavour = shift;
|
||||
|
||||
if ($flavour =~ /64/) {
|
||||
$SIZE_T =8;
|
||||
$LRSAVE =2*$SIZE_T;
|
||||
$UCMP ="cmpld";
|
||||
$STU ="stdu";
|
||||
$POP ="ld";
|
||||
$PUSH ="std";
|
||||
} elsif ($flavour =~ /32/) {
|
||||
$SIZE_T =4;
|
||||
$LRSAVE =$SIZE_T;
|
||||
$UCMP ="cmplw";
|
||||
$STU ="stwu";
|
||||
$POP ="lwz";
|
||||
$PUSH ="stw";
|
||||
} else { die "nonsense $flavour"; }
|
||||
|
||||
$LITTLE_ENDIAN = ($flavour=~/le$/) ? 4 : 0;
|
||||
|
||||
$LWXLE = $LITTLE_ENDIAN ? "lwzx" : "lwbrx";
|
||||
|
||||
$0 =~ m/(.*[\/\\])[^\/\\]+$/; $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 ".shift || die "can't call $xlate: $!";
|
||||
|
||||
$LOCALS=6*$SIZE_T;
|
||||
$FRAME=$LOCALS+6*8+18*8;
|
||||
|
||||
my $sp="r1";
|
||||
|
||||
my ($ctx,$inp,$len,$padbit) = map("r$_",(3..6));
|
||||
my ($in0,$in1,$in2,$in3,$i1,$i2,$i3) = map("r$_",(7..12,6));
|
||||
|
||||
my ($h0lo,$h0hi,$h1lo,$h1hi,$h2lo,$h2hi,$h3lo,$h3hi,
|
||||
$two0,$two32,$two64,$two96,$two130,$five_two130,
|
||||
$r0lo,$r0hi,$r1lo,$r1hi,$r2lo,$r2hi,
|
||||
$s2lo,$s2hi,$s3lo,$s3hi,
|
||||
$c0lo,$c0hi,$c1lo,$c1hi,$c2lo,$c2hi,$c3lo,$c3hi) = map("f$_",(0..31));
|
||||
# borrowings
|
||||
my ($r3lo,$r3hi,$s1lo,$s1hi) = ($c0lo,$c0hi,$c1lo,$c1hi);
|
||||
my ($x0,$x1,$x2,$x3) = ($c2lo,$c2hi,$c3lo,$c3hi);
|
||||
my ($y0,$y1,$y2,$y3) = ($c3lo,$c3hi,$c1lo,$c1hi);
|
||||
|
||||
$code.=<<___;
|
||||
.machine "any"
|
||||
.text
|
||||
|
||||
.globl .poly1305_init_fpu
|
||||
.align 6
|
||||
.poly1305_init_fpu:
|
||||
$STU $sp,-$LOCALS($sp) # minimal frame
|
||||
mflr $padbit
|
||||
$PUSH $padbit,`$LOCALS+$LRSAVE`($sp)
|
||||
|
||||
bl LPICmeup
|
||||
|
||||
xor r0,r0,r0
|
||||
mtlr $padbit # restore lr
|
||||
|
||||
lfd $two0,8*0($len) # load constants
|
||||
lfd $two32,8*1($len)
|
||||
lfd $two64,8*2($len)
|
||||
lfd $two96,8*3($len)
|
||||
lfd $two130,8*4($len)
|
||||
lfd $five_two130,8*5($len)
|
||||
|
||||
stfd $two0,8*0($ctx) # initial hash value, biased 0
|
||||
stfd $two32,8*1($ctx)
|
||||
stfd $two64,8*2($ctx)
|
||||
stfd $two96,8*3($ctx)
|
||||
|
||||
$UCMP $inp,r0
|
||||
beq- Lno_key
|
||||
|
||||
lfd $h3lo,8*13($len) # new fpscr
|
||||
mffs $h3hi # old fpscr
|
||||
|
||||
stfd $two0,8*4($ctx) # key "template"
|
||||
stfd $two32,8*5($ctx)
|
||||
stfd $two64,8*6($ctx)
|
||||
stfd $two96,8*7($ctx)
|
||||
|
||||
li $in1,4
|
||||
li $in2,8
|
||||
li $in3,12
|
||||
$LWXLE $in0,0,$inp # load key
|
||||
$LWXLE $in1,$in1,$inp
|
||||
$LWXLE $in2,$in2,$inp
|
||||
$LWXLE $in3,$in3,$inp
|
||||
|
||||
lis $i1,0xf000 # 0xf0000000
|
||||
ori $i2,$i1,3 # 0xf0000003
|
||||
andc $in0,$in0,$i1 # &=0x0fffffff
|
||||
andc $in1,$in1,$i2 # &=0x0ffffffc
|
||||
andc $in2,$in2,$i2
|
||||
andc $in3,$in3,$i2
|
||||
|
||||
stw $in0,`8*4+(4^$LITTLE_ENDIAN)`($ctx) # fill "template"
|
||||
stw $in1,`8*5+(4^$LITTLE_ENDIAN)`($ctx)
|
||||
stw $in2,`8*6+(4^$LITTLE_ENDIAN)`($ctx)
|
||||
stw $in3,`8*7+(4^$LITTLE_ENDIAN)`($ctx)
|
||||
|
||||
mtfsf 255,$h3lo # fpscr
|
||||
stfd $two0,8*18($ctx) # copy constants to context
|
||||
stfd $two32,8*19($ctx)
|
||||
stfd $two64,8*20($ctx)
|
||||
stfd $two96,8*21($ctx)
|
||||
stfd $two130,8*22($ctx)
|
||||
stfd $five_two130,8*23($ctx)
|
||||
|
||||
lfd $h0lo,8*4($ctx) # load [biased] key
|
||||
lfd $h1lo,8*5($ctx)
|
||||
lfd $h2lo,8*6($ctx)
|
||||
lfd $h3lo,8*7($ctx)
|
||||
|
||||
fsub $h0lo,$h0lo,$two0 # r0
|
||||
fsub $h1lo,$h1lo,$two32 # r1
|
||||
fsub $h2lo,$h2lo,$two64 # r2
|
||||
fsub $h3lo,$h3lo,$two96 # r3
|
||||
|
||||
lfd $two0,8*6($len) # more constants
|
||||
lfd $two32,8*7($len)
|
||||
lfd $two64,8*8($len)
|
||||
lfd $two96,8*9($len)
|
||||
|
||||
fmul $h1hi,$h1lo,$five_two130 # s1
|
||||
fmul $h2hi,$h2lo,$five_two130 # s2
|
||||
stfd $h3hi,8*15($ctx) # borrow slot for original fpscr
|
||||
fmul $h3hi,$h3lo,$five_two130 # s3
|
||||
|
||||
fadd $h0hi,$h0lo,$two0
|
||||
stfd $h1hi,8*12($ctx) # put aside for now
|
||||
fadd $h1hi,$h1lo,$two32
|
||||
stfd $h2hi,8*13($ctx)
|
||||
fadd $h2hi,$h2lo,$two64
|
||||
stfd $h3hi,8*14($ctx)
|
||||
fadd $h3hi,$h3lo,$two96
|
||||
|
||||
fsub $h0hi,$h0hi,$two0
|
||||
fsub $h1hi,$h1hi,$two32
|
||||
fsub $h2hi,$h2hi,$two64
|
||||
fsub $h3hi,$h3hi,$two96
|
||||
|
||||
lfd $two0,8*10($len) # more constants
|
||||
lfd $two32,8*11($len)
|
||||
lfd $two64,8*12($len)
|
||||
|
||||
fsub $h0lo,$h0lo,$h0hi
|
||||
fsub $h1lo,$h1lo,$h1hi
|
||||
fsub $h2lo,$h2lo,$h2hi
|
||||
fsub $h3lo,$h3lo,$h3hi
|
||||
|
||||
stfd $h0hi,8*5($ctx) # r0hi
|
||||
stfd $h1hi,8*7($ctx) # r1hi
|
||||
stfd $h2hi,8*9($ctx) # r2hi
|
||||
stfd $h3hi,8*11($ctx) # r3hi
|
||||
|
||||
stfd $h0lo,8*4($ctx) # r0lo
|
||||
stfd $h1lo,8*6($ctx) # r1lo
|
||||
stfd $h2lo,8*8($ctx) # r2lo
|
||||
stfd $h3lo,8*10($ctx) # r3lo
|
||||
|
||||
lfd $h1lo,8*12($ctx) # s1
|
||||
lfd $h2lo,8*13($ctx) # s2
|
||||
lfd $h3lo,8*14($ctx) # s3
|
||||
lfd $h0lo,8*15($ctx) # pull original fpscr
|
||||
|
||||
fadd $h1hi,$h1lo,$two0
|
||||
fadd $h2hi,$h2lo,$two32
|
||||
fadd $h3hi,$h3lo,$two64
|
||||
|
||||
fsub $h1hi,$h1hi,$two0
|
||||
fsub $h2hi,$h2hi,$two32
|
||||
fsub $h3hi,$h3hi,$two64
|
||||
|
||||
fsub $h1lo,$h1lo,$h1hi
|
||||
fsub $h2lo,$h2lo,$h2hi
|
||||
fsub $h3lo,$h3lo,$h3hi
|
||||
|
||||
stfd $h1hi,8*13($ctx) # s1hi
|
||||
stfd $h2hi,8*15($ctx) # s2hi
|
||||
stfd $h3hi,8*17($ctx) # s3hi
|
||||
|
||||
stfd $h1lo,8*12($ctx) # s1lo
|
||||
stfd $h2lo,8*14($ctx) # s2lo
|
||||
stfd $h3lo,8*16($ctx) # s3lo
|
||||
|
||||
mtfsf 255,$h0lo # restore fpscr
|
||||
Lno_key:
|
||||
xor r3,r3,r3
|
||||
addi $sp,$sp,$LOCALS
|
||||
blr
|
||||
.long 0
|
||||
.byte 0,12,4,1,0x80,0,2,0
|
||||
.size .poly1305_init_fpu,.-.poly1305_init_fpu
|
||||
|
||||
.globl .poly1305_blocks_fpu
|
||||
.align 4
|
||||
.poly1305_blocks_fpu:
|
||||
srwi. $len,$len,4
|
||||
beq- Labort
|
||||
|
||||
$STU $sp,-$FRAME($sp)
|
||||
mflr r0
|
||||
stfd f14,`$FRAME-8*18`($sp)
|
||||
stfd f15,`$FRAME-8*17`($sp)
|
||||
stfd f16,`$FRAME-8*16`($sp)
|
||||
stfd f17,`$FRAME-8*15`($sp)
|
||||
stfd f18,`$FRAME-8*14`($sp)
|
||||
stfd f19,`$FRAME-8*13`($sp)
|
||||
stfd f20,`$FRAME-8*12`($sp)
|
||||
stfd f21,`$FRAME-8*11`($sp)
|
||||
stfd f22,`$FRAME-8*10`($sp)
|
||||
stfd f23,`$FRAME-8*9`($sp)
|
||||
stfd f24,`$FRAME-8*8`($sp)
|
||||
stfd f25,`$FRAME-8*7`($sp)
|
||||
stfd f26,`$FRAME-8*6`($sp)
|
||||
stfd f27,`$FRAME-8*5`($sp)
|
||||
stfd f28,`$FRAME-8*4`($sp)
|
||||
stfd f29,`$FRAME-8*3`($sp)
|
||||
stfd f30,`$FRAME-8*2`($sp)
|
||||
stfd f31,`$FRAME-8*1`($sp)
|
||||
$PUSH r0,`$FRAME+$LRSAVE`($sp)
|
||||
|
||||
xor r0,r0,r0
|
||||
li $in3,1
|
||||
mtctr $len
|
||||
neg $len,$len
|
||||
stw r0,`$LOCALS+8*4+(0^$LITTLE_ENDIAN)`($sp)
|
||||
stw $in3,`$LOCALS+8*4+(4^$LITTLE_ENDIAN)`($sp)
|
||||
|
||||
lfd $two0,8*18($ctx) # load constants
|
||||
lfd $two32,8*19($ctx)
|
||||
lfd $two64,8*20($ctx)
|
||||
lfd $two96,8*21($ctx)
|
||||
lfd $two130,8*22($ctx)
|
||||
lfd $five_two130,8*23($ctx)
|
||||
|
||||
lfd $h0lo,8*0($ctx) # load [biased] hash value
|
||||
lfd $h1lo,8*1($ctx)
|
||||
lfd $h2lo,8*2($ctx)
|
||||
lfd $h3lo,8*3($ctx)
|
||||
|
||||
stfd $two0,`$LOCALS+8*0`($sp) # input "template"
|
||||
oris $in3,$padbit,`(1023+52+96)<<4`
|
||||
stfd $two32,`$LOCALS+8*1`($sp)
|
||||
stfd $two64,`$LOCALS+8*2`($sp)
|
||||
stw $in3,`$LOCALS+8*3+(0^$LITTLE_ENDIAN)`($sp)
|
||||
|
||||
li $i1,4
|
||||
li $i2,8
|
||||
li $i3,12
|
||||
$LWXLE $in0,0,$inp # load input
|
||||
$LWXLE $in1,$i1,$inp
|
||||
$LWXLE $in2,$i2,$inp
|
||||
$LWXLE $in3,$i3,$inp
|
||||
addi $inp,$inp,16
|
||||
|
||||
stw $in0,`$LOCALS+8*0+(4^$LITTLE_ENDIAN)`($sp) # fill "template"
|
||||
stw $in1,`$LOCALS+8*1+(4^$LITTLE_ENDIAN)`($sp)
|
||||
stw $in2,`$LOCALS+8*2+(4^$LITTLE_ENDIAN)`($sp)
|
||||
stw $in3,`$LOCALS+8*3+(4^$LITTLE_ENDIAN)`($sp)
|
||||
|
||||
mffs $x0 # original fpscr
|
||||
lfd $x1,`$LOCALS+8*4`($sp) # new fpscr
|
||||
lfd $r0lo,8*4($ctx) # load key
|
||||
lfd $r0hi,8*5($ctx)
|
||||
lfd $r1lo,8*6($ctx)
|
||||
lfd $r1hi,8*7($ctx)
|
||||
lfd $r2lo,8*8($ctx)
|
||||
lfd $r2hi,8*9($ctx)
|
||||
lfd $r3lo,8*10($ctx)
|
||||
lfd $r3hi,8*11($ctx)
|
||||
lfd $s1lo,8*12($ctx)
|
||||
lfd $s1hi,8*13($ctx)
|
||||
lfd $s2lo,8*14($ctx)
|
||||
lfd $s2hi,8*15($ctx)
|
||||
lfd $s3lo,8*16($ctx)
|
||||
lfd $s3hi,8*17($ctx)
|
||||
|
||||
stfd $x0,`$LOCALS+8*4`($sp) # save original fpscr
|
||||
mtfsf 255,$x1
|
||||
|
||||
addic $len,$len,1
|
||||
addze r0,r0
|
||||
slwi. r0,r0,4
|
||||
sub $inp,$inp,r0 # conditional rewind
|
||||
|
||||
lfd $x0,`$LOCALS+8*0`($sp)
|
||||
lfd $x1,`$LOCALS+8*1`($sp)
|
||||
lfd $x2,`$LOCALS+8*2`($sp)
|
||||
lfd $x3,`$LOCALS+8*3`($sp)
|
||||
|
||||
fsub $h0lo,$h0lo,$two0 # de-bias hash value
|
||||
$LWXLE $in0,0,$inp # modulo-scheduled input load
|
||||
fsub $h1lo,$h1lo,$two32
|
||||
$LWXLE $in1,$i1,$inp
|
||||
fsub $h2lo,$h2lo,$two64
|
||||
$LWXLE $in2,$i2,$inp
|
||||
fsub $h3lo,$h3lo,$two96
|
||||
$LWXLE $in3,$i3,$inp
|
||||
|
||||
fsub $x0,$x0,$two0 # de-bias input
|
||||
addi $inp,$inp,16
|
||||
fsub $x1,$x1,$two32
|
||||
fsub $x2,$x2,$two64
|
||||
fsub $x3,$x3,$two96
|
||||
|
||||
fadd $x0,$x0,$h0lo # accumulate input
|
||||
stw $in0,`$LOCALS+8*0+(4^$LITTLE_ENDIAN)`($sp)
|
||||
fadd $x1,$x1,$h1lo
|
||||
stw $in1,`$LOCALS+8*1+(4^$LITTLE_ENDIAN)`($sp)
|
||||
fadd $x2,$x2,$h2lo
|
||||
stw $in2,`$LOCALS+8*2+(4^$LITTLE_ENDIAN)`($sp)
|
||||
fadd $x3,$x3,$h3lo
|
||||
stw $in3,`$LOCALS+8*3+(4^$LITTLE_ENDIAN)`($sp)
|
||||
|
||||
b Lentry
|
||||
|
||||
.align 4
|
||||
Loop:
|
||||
fsub $y0,$y0,$two0 # de-bias input
|
||||
addic $len,$len,1
|
||||
fsub $y1,$y1,$two32
|
||||
addze r0,r0
|
||||
fsub $y2,$y2,$two64
|
||||
slwi. r0,r0,4
|
||||
fsub $y3,$y3,$two96
|
||||
sub $inp,$inp,r0 # conditional rewind
|
||||
|
||||
fadd $h0lo,$h0lo,$y0 # accumulate input
|
||||
fadd $h0hi,$h0hi,$y1
|
||||
fadd $h2lo,$h2lo,$y2
|
||||
fadd $h2hi,$h2hi,$y3
|
||||
|
||||
######################################### base 2^48 -> base 2^32
|
||||
fadd $c1lo,$h1lo,$two64
|
||||
$LWXLE $in0,0,$inp # modulo-scheduled input load
|
||||
fadd $c1hi,$h1hi,$two64
|
||||
$LWXLE $in1,$i1,$inp
|
||||
fadd $c3lo,$h3lo,$two130
|
||||
$LWXLE $in2,$i2,$inp
|
||||
fadd $c3hi,$h3hi,$two130
|
||||
$LWXLE $in3,$i3,$inp
|
||||
fadd $c0lo,$h0lo,$two32
|
||||
addi $inp,$inp,16
|
||||
fadd $c0hi,$h0hi,$two32
|
||||
fadd $c2lo,$h2lo,$two96
|
||||
fadd $c2hi,$h2hi,$two96
|
||||
|
||||
fsub $c1lo,$c1lo,$two64
|
||||
stw $in0,`$LOCALS+8*0+(4^$LITTLE_ENDIAN)`($sp) # fill "template"
|
||||
fsub $c1hi,$c1hi,$two64
|
||||
stw $in1,`$LOCALS+8*1+(4^$LITTLE_ENDIAN)`($sp)
|
||||
fsub $c3lo,$c3lo,$two130
|
||||
stw $in2,`$LOCALS+8*2+(4^$LITTLE_ENDIAN)`($sp)
|
||||
fsub $c3hi,$c3hi,$two130
|
||||
stw $in3,`$LOCALS+8*3+(4^$LITTLE_ENDIAN)`($sp)
|
||||
fsub $c0lo,$c0lo,$two32
|
||||
fsub $c0hi,$c0hi,$two32
|
||||
fsub $c2lo,$c2lo,$two96
|
||||
fsub $c2hi,$c2hi,$two96
|
||||
|
||||
fsub $h1lo,$h1lo,$c1lo
|
||||
fsub $h1hi,$h1hi,$c1hi
|
||||
fsub $h3lo,$h3lo,$c3lo
|
||||
fsub $h3hi,$h3hi,$c3hi
|
||||
fsub $h2lo,$h2lo,$c2lo
|
||||
fsub $h2hi,$h2hi,$c2hi
|
||||
fsub $h0lo,$h0lo,$c0lo
|
||||
fsub $h0hi,$h0hi,$c0hi
|
||||
|
||||
fadd $h1lo,$h1lo,$c0lo
|
||||
fadd $h1hi,$h1hi,$c0hi
|
||||
fadd $h3lo,$h3lo,$c2lo
|
||||
fadd $h3hi,$h3hi,$c2hi
|
||||
fadd $h2lo,$h2lo,$c1lo
|
||||
fadd $h2hi,$h2hi,$c1hi
|
||||
fmadd $h0lo,$c3lo,$five_two130,$h0lo
|
||||
fmadd $h0hi,$c3hi,$five_two130,$h0hi
|
||||
|
||||
fadd $x1,$h1lo,$h1hi
|
||||
lfd $s1lo,8*12($ctx) # reload constants
|
||||
fadd $x3,$h3lo,$h3hi
|
||||
lfd $s1hi,8*13($ctx)
|
||||
fadd $x2,$h2lo,$h2hi
|
||||
lfd $r3lo,8*10($ctx)
|
||||
fadd $x0,$h0lo,$h0hi
|
||||
lfd $r3hi,8*11($ctx)
|
||||
Lentry:
|
||||
fmul $h0lo,$s3lo,$x1
|
||||
fmul $h0hi,$s3hi,$x1
|
||||
fmul $h2lo,$r1lo,$x1
|
||||
fmul $h2hi,$r1hi,$x1
|
||||
fmul $h1lo,$r0lo,$x1
|
||||
fmul $h1hi,$r0hi,$x1
|
||||
fmul $h3lo,$r2lo,$x1
|
||||
fmul $h3hi,$r2hi,$x1
|
||||
|
||||
fmadd $h0lo,$s1lo,$x3,$h0lo
|
||||
fmadd $h0hi,$s1hi,$x3,$h0hi
|
||||
fmadd $h2lo,$s3lo,$x3,$h2lo
|
||||
fmadd $h2hi,$s3hi,$x3,$h2hi
|
||||
fmadd $h1lo,$s2lo,$x3,$h1lo
|
||||
fmadd $h1hi,$s2hi,$x3,$h1hi
|
||||
fmadd $h3lo,$r0lo,$x3,$h3lo
|
||||
fmadd $h3hi,$r0hi,$x3,$h3hi
|
||||
|
||||
fmadd $h0lo,$s2lo,$x2,$h0lo
|
||||
fmadd $h0hi,$s2hi,$x2,$h0hi
|
||||
fmadd $h2lo,$r0lo,$x2,$h2lo
|
||||
fmadd $h2hi,$r0hi,$x2,$h2hi
|
||||
fmadd $h1lo,$s3lo,$x2,$h1lo
|
||||
fmadd $h1hi,$s3hi,$x2,$h1hi
|
||||
fmadd $h3lo,$r1lo,$x2,$h3lo
|
||||
fmadd $h3hi,$r1hi,$x2,$h3hi
|
||||
|
||||
fmadd $h0lo,$r0lo,$x0,$h0lo
|
||||
lfd $y0,`$LOCALS+8*0`($sp) # load [biased] input
|
||||
fmadd $h0hi,$r0hi,$x0,$h0hi
|
||||
lfd $y1,`$LOCALS+8*1`($sp)
|
||||
fmadd $h2lo,$r2lo,$x0,$h2lo
|
||||
lfd $y2,`$LOCALS+8*2`($sp)
|
||||
fmadd $h2hi,$r2hi,$x0,$h2hi
|
||||
lfd $y3,`$LOCALS+8*3`($sp)
|
||||
fmadd $h1lo,$r1lo,$x0,$h1lo
|
||||
fmadd $h1hi,$r1hi,$x0,$h1hi
|
||||
fmadd $h3lo,$r3lo,$x0,$h3lo
|
||||
fmadd $h3hi,$r3hi,$x0,$h3hi
|
||||
|
||||
bdnz Loop
|
||||
|
||||
######################################### base 2^48 -> base 2^32
|
||||
fadd $c0lo,$h0lo,$two32
|
||||
fadd $c0hi,$h0hi,$two32
|
||||
fadd $c2lo,$h2lo,$two96
|
||||
fadd $c2hi,$h2hi,$two96
|
||||
fadd $c1lo,$h1lo,$two64
|
||||
fadd $c1hi,$h1hi,$two64
|
||||
fadd $c3lo,$h3lo,$two130
|
||||
fadd $c3hi,$h3hi,$two130
|
||||
|
||||
fsub $c0lo,$c0lo,$two32
|
||||
fsub $c0hi,$c0hi,$two32
|
||||
fsub $c2lo,$c2lo,$two96
|
||||
fsub $c2hi,$c2hi,$two96
|
||||
fsub $c1lo,$c1lo,$two64
|
||||
fsub $c1hi,$c1hi,$two64
|
||||
fsub $c3lo,$c3lo,$two130
|
||||
fsub $c3hi,$c3hi,$two130
|
||||
|
||||
fsub $h1lo,$h1lo,$c1lo
|
||||
fsub $h1hi,$h1hi,$c1hi
|
||||
fsub $h3lo,$h3lo,$c3lo
|
||||
fsub $h3hi,$h3hi,$c3hi
|
||||
fsub $h2lo,$h2lo,$c2lo
|
||||
fsub $h2hi,$h2hi,$c2hi
|
||||
fsub $h0lo,$h0lo,$c0lo
|
||||
fsub $h0hi,$h0hi,$c0hi
|
||||
|
||||
fadd $h1lo,$h1lo,$c0lo
|
||||
fadd $h1hi,$h1hi,$c0hi
|
||||
fadd $h3lo,$h3lo,$c2lo
|
||||
fadd $h3hi,$h3hi,$c2hi
|
||||
fadd $h2lo,$h2lo,$c1lo
|
||||
fadd $h2hi,$h2hi,$c1hi
|
||||
fmadd $h0lo,$c3lo,$five_two130,$h0lo
|
||||
fmadd $h0hi,$c3hi,$five_two130,$h0hi
|
||||
|
||||
fadd $x1,$h1lo,$h1hi
|
||||
fadd $x3,$h3lo,$h3hi
|
||||
fadd $x2,$h2lo,$h2hi
|
||||
fadd $x0,$h0lo,$h0hi
|
||||
|
||||
lfd $h0lo,`$LOCALS+8*4`($sp) # pull saved fpscr
|
||||
fadd $x1,$x1,$two32 # bias
|
||||
fadd $x3,$x3,$two96
|
||||
fadd $x2,$x2,$two64
|
||||
fadd $x0,$x0,$two0
|
||||
|
||||
stfd $x1,8*1($ctx) # store [biased] hash value
|
||||
stfd $x3,8*3($ctx)
|
||||
stfd $x2,8*2($ctx)
|
||||
stfd $x0,8*0($ctx)
|
||||
|
||||
mtfsf 255,$h0lo # restore original fpscr
|
||||
lfd f14,`$FRAME-8*18`($sp)
|
||||
lfd f15,`$FRAME-8*17`($sp)
|
||||
lfd f16,`$FRAME-8*16`($sp)
|
||||
lfd f17,`$FRAME-8*15`($sp)
|
||||
lfd f18,`$FRAME-8*14`($sp)
|
||||
lfd f19,`$FRAME-8*13`($sp)
|
||||
lfd f20,`$FRAME-8*12`($sp)
|
||||
lfd f21,`$FRAME-8*11`($sp)
|
||||
lfd f22,`$FRAME-8*10`($sp)
|
||||
lfd f23,`$FRAME-8*9`($sp)
|
||||
lfd f24,`$FRAME-8*8`($sp)
|
||||
lfd f25,`$FRAME-8*7`($sp)
|
||||
lfd f26,`$FRAME-8*6`($sp)
|
||||
lfd f27,`$FRAME-8*5`($sp)
|
||||
lfd f28,`$FRAME-8*4`($sp)
|
||||
lfd f29,`$FRAME-8*3`($sp)
|
||||
lfd f30,`$FRAME-8*2`($sp)
|
||||
lfd f31,`$FRAME-8*1`($sp)
|
||||
addi $sp,$sp,$FRAME
|
||||
Labort:
|
||||
blr
|
||||
.long 0
|
||||
.byte 0,12,4,1,0x80,0,4,0
|
||||
.size .poly1305_blocks_fpu,.-.poly1305_blocks_fpu
|
||||
___
|
||||
{
|
||||
my ($mac,$nonce)=($inp,$len);
|
||||
|
||||
my ($h0,$h1,$h2,$h3,$h4, $d0,$d1,$d2,$d3
|
||||
) = map("r$_",(7..11,28..31));
|
||||
my $mask = "r0";
|
||||
my $FRAME = (6+4)*$SIZE_T;
|
||||
|
||||
$code.=<<___;
|
||||
.globl .poly1305_emit_fpu
|
||||
.align 4
|
||||
.poly1305_emit_fpu:
|
||||
$STU $sp,-$FRAME($sp)
|
||||
mflr r0
|
||||
$PUSH r28,`$FRAME-$SIZE_T*4`($sp)
|
||||
$PUSH r29,`$FRAME-$SIZE_T*3`($sp)
|
||||
$PUSH r30,`$FRAME-$SIZE_T*2`($sp)
|
||||
$PUSH r31,`$FRAME-$SIZE_T*1`($sp)
|
||||
$PUSH r0,`$FRAME+$LRSAVE`($sp)
|
||||
|
||||
lwz $d0,`8*0+(0^$LITTLE_ENDIAN)`($ctx) # load hash
|
||||
lwz $h0,`8*0+(4^$LITTLE_ENDIAN)`($ctx)
|
||||
lwz $d1,`8*1+(0^$LITTLE_ENDIAN)`($ctx)
|
||||
lwz $h1,`8*1+(4^$LITTLE_ENDIAN)`($ctx)
|
||||
lwz $d2,`8*2+(0^$LITTLE_ENDIAN)`($ctx)
|
||||
lwz $h2,`8*2+(4^$LITTLE_ENDIAN)`($ctx)
|
||||
lwz $d3,`8*3+(0^$LITTLE_ENDIAN)`($ctx)
|
||||
lwz $h3,`8*3+(4^$LITTLE_ENDIAN)`($ctx)
|
||||
|
||||
lis $mask,0xfff0
|
||||
andc $d0,$d0,$mask # mask exponent
|
||||
andc $d1,$d1,$mask
|
||||
andc $d2,$d2,$mask
|
||||
andc $d3,$d3,$mask # can be partially reduced...
|
||||
li $mask,3
|
||||
|
||||
srwi $padbit,$d3,2 # ... so reduce
|
||||
and $h4,$d3,$mask
|
||||
andc $d3,$d3,$mask
|
||||
add $d3,$d3,$padbit
|
||||
___
|
||||
if ($SIZE_T==4) {
|
||||
$code.=<<___;
|
||||
addc $h0,$h0,$d3
|
||||
adde $h1,$h1,$d0
|
||||
adde $h2,$h2,$d1
|
||||
adde $h3,$h3,$d2
|
||||
addze $h4,$h4
|
||||
|
||||
addic $d0,$h0,5 # compare to modulus
|
||||
addze $d1,$h1
|
||||
addze $d2,$h2
|
||||
addze $d3,$h3
|
||||
addze $mask,$h4
|
||||
|
||||
srwi $mask,$mask,2 # did it carry/borrow?
|
||||
neg $mask,$mask
|
||||
srawi $mask,$mask,31 # mask
|
||||
|
||||
andc $h0,$h0,$mask
|
||||
and $d0,$d0,$mask
|
||||
andc $h1,$h1,$mask
|
||||
and $d1,$d1,$mask
|
||||
or $h0,$h0,$d0
|
||||
lwz $d0,0($nonce) # load nonce
|
||||
andc $h2,$h2,$mask
|
||||
and $d2,$d2,$mask
|
||||
or $h1,$h1,$d1
|
||||
lwz $d1,4($nonce)
|
||||
andc $h3,$h3,$mask
|
||||
and $d3,$d3,$mask
|
||||
or $h2,$h2,$d2
|
||||
lwz $d2,8($nonce)
|
||||
or $h3,$h3,$d3
|
||||
lwz $d3,12($nonce)
|
||||
|
||||
addc $h0,$h0,$d0 # accumulate nonce
|
||||
adde $h1,$h1,$d1
|
||||
adde $h2,$h2,$d2
|
||||
adde $h3,$h3,$d3
|
||||
___
|
||||
} else {
|
||||
$code.=<<___;
|
||||
add $h0,$h0,$d3
|
||||
add $h1,$h1,$d0
|
||||
add $h2,$h2,$d1
|
||||
add $h3,$h3,$d2
|
||||
|
||||
srdi $d0,$h0,32
|
||||
add $h1,$h1,$d0
|
||||
srdi $d1,$h1,32
|
||||
add $h2,$h2,$d1
|
||||
srdi $d2,$h2,32
|
||||
add $h3,$h3,$d2
|
||||
srdi $d3,$h3,32
|
||||
add $h4,$h4,$d3
|
||||
|
||||
insrdi $h0,$h1,32,0
|
||||
insrdi $h2,$h3,32,0
|
||||
|
||||
addic $d0,$h0,5 # compare to modulus
|
||||
addze $d1,$h2
|
||||
addze $d2,$h4
|
||||
|
||||
srdi $mask,$d2,2 # did it carry/borrow?
|
||||
neg $mask,$mask
|
||||
sradi $mask,$mask,63 # mask
|
||||
ld $d2,0($nonce) # load nonce
|
||||
ld $d3,8($nonce)
|
||||
|
||||
andc $h0,$h0,$mask
|
||||
and $d0,$d0,$mask
|
||||
andc $h2,$h2,$mask
|
||||
and $d1,$d1,$mask
|
||||
or $h0,$h0,$d0
|
||||
or $h2,$h2,$d1
|
||||
___
|
||||
$code.=<<___ if (!$LITTLE_ENDIAN);
|
||||
rotldi $d2,$d2,32 # flip nonce words
|
||||
rotldi $d3,$d3,32
|
||||
___
|
||||
$code.=<<___;
|
||||
addc $h0,$h0,$d2 # accumulate nonce
|
||||
adde $h2,$h2,$d3
|
||||
|
||||
srdi $h1,$h0,32
|
||||
srdi $h3,$h2,32
|
||||
___
|
||||
}
|
||||
$code.=<<___ if ($LITTLE_ENDIAN);
|
||||
stw $h0,0($mac) # write result
|
||||
stw $h1,4($mac)
|
||||
stw $h2,8($mac)
|
||||
stw $h3,12($mac)
|
||||
___
|
||||
$code.=<<___ if (!$LITTLE_ENDIAN);
|
||||
li $d1,4
|
||||
stwbrx $h0,0,$mac # write result
|
||||
li $d2,8
|
||||
stwbrx $h1,$d1,$mac
|
||||
li $d3,12
|
||||
stwbrx $h2,$d2,$mac
|
||||
stwbrx $h3,$d3,$mac
|
||||
___
|
||||
$code.=<<___;
|
||||
$POP r28,`$FRAME-$SIZE_T*4`($sp)
|
||||
$POP r29,`$FRAME-$SIZE_T*3`($sp)
|
||||
$POP r30,`$FRAME-$SIZE_T*2`($sp)
|
||||
$POP r31,`$FRAME-$SIZE_T*1`($sp)
|
||||
addi $sp,$sp,$FRAME
|
||||
blr
|
||||
.long 0
|
||||
.byte 0,12,4,1,0x80,4,3,0
|
||||
.size .poly1305_emit_fpu,.-.poly1305_emit_fpu
|
||||
___
|
||||
}
|
||||
# Ugly hack here, because PPC assembler syntax seem to vary too
|
||||
# much from platforms to platform...
|
||||
$code.=<<___;
|
||||
.align 6
|
||||
LPICmeup:
|
||||
mflr r0
|
||||
bcl 20,31,\$+4
|
||||
mflr $len # vvvvvv "distance" between . and 1st data entry
|
||||
addi $len,$len,`64-8` # borrow $len
|
||||
mtlr r0
|
||||
blr
|
||||
.long 0
|
||||
.byte 0,12,0x14,0,0,0,0,0
|
||||
.space `64-9*4`
|
||||
|
||||
.quad 0x4330000000000000 # 2^(52+0)
|
||||
.quad 0x4530000000000000 # 2^(52+32)
|
||||
.quad 0x4730000000000000 # 2^(52+64)
|
||||
.quad 0x4930000000000000 # 2^(52+96)
|
||||
.quad 0x4b50000000000000 # 2^(52+130)
|
||||
|
||||
.quad 0x37f4000000000000 # 5/2^130
|
||||
|
||||
.quad 0x4430000000000000 # 2^(52+16+0)
|
||||
.quad 0x4630000000000000 # 2^(52+16+32)
|
||||
.quad 0x4830000000000000 # 2^(52+16+64)
|
||||
.quad 0x4a30000000000000 # 2^(52+16+96)
|
||||
.quad 0x3e30000000000000 # 2^(52+16+0-96)
|
||||
.quad 0x4030000000000000 # 2^(52+16+32-96)
|
||||
.quad 0x4230000000000000 # 2^(52+16+64-96)
|
||||
|
||||
.quad 0x0000000000000001 # fpscr: truncate, no exceptions
|
||||
.asciz "Poly1305 for PPC FPU, CRYPTOGAMS by <appro\@openssl.org>"
|
||||
.align 4
|
||||
___
|
||||
|
||||
$code =~ s/\`([^\`]*)\`/eval $1/gem;
|
||||
print $code;
|
||||
close STDOUT;
|
||||
|
|
@ -9,6 +9,10 @@ BEGINRAW[Makefile(unix)]
|
|||
$(PERL) {- $sourcedir -}/asm/poly1305-x86.pl $(PERLASM_SCHEME) $(CFLAGS) $(PROCESSOR) > $@
|
||||
{- $builddir -}/poly1305-x86_64.s: {- $sourcedir -}/asm/poly1305-x86_64.pl
|
||||
$(PERL) {- $sourcedir -}/asm/poly1305-x86_64.pl $(PERLASM_SCHEME) > $@
|
||||
{- $builddir -}/poly1305-ppc.s: {- $sourcedir -}/asm/poly1305-ppc.pl
|
||||
$(PERL) {- $sourcedir -}/asm/poly1305-ppc.pl $(PERLASM_SCHEME) $@
|
||||
{- $builddir -}/poly1305-ppcfp.s: {- $sourcedir -}/asm/poly1305-ppcfp.pl
|
||||
$(PERL) {- $sourcedir -}/asm/poly1305-ppcfp.pl $(PERLASM_SCHEME) $@
|
||||
|
||||
{- $builddir -}/poly1305-%.S: {- $sourcedir -}/asm/poly1305-%.pl
|
||||
$(PERL) $< $(PERLASM_SCHEME) $@
|
||||
|
|
|
|||
Loading…
Reference in a new issue