diff options
Diffstat (limited to 'openssl/crypto/bn/asm/sparcv9-gf2m.pl')
| -rw-r--r-- | openssl/crypto/bn/asm/sparcv9-gf2m.pl | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/openssl/crypto/bn/asm/sparcv9-gf2m.pl b/openssl/crypto/bn/asm/sparcv9-gf2m.pl new file mode 100644 index 0000000..ab94cd9 --- /dev/null +++ b/openssl/crypto/bn/asm/sparcv9-gf2m.pl @@ -0,0 +1,190 @@ +#!/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/. +# ==================================================================== +# +# October 2012 +# +# The module implements bn_GF2m_mul_2x2 polynomial multiplication used +# in bn_gf2m.c. It's kind of low-hanging mechanical port from C for +# the time being... Except that it has two code paths: one suitable +# for all SPARCv9 processors and one for VIS3-capable ones. Former +# delivers ~25-45% more, more for longer keys, heaviest DH and DSA +# verify operations on venerable UltraSPARC II. On T4 VIS3 code is +# ~100-230% faster than gcc-generated code and ~35-90% faster than +# the pure SPARCv9 code path. + +$locals=16*8; + +$tab="%l0"; + +@T=("%g2","%g3"); +@i=("%g4","%g5"); + +($a1,$a2,$a4,$a8,$a12,$a48)=map("%o$_",(0..5)); +($lo,$hi,$b)=("%g1",$a8,"%o7"); $a=$lo; + +$code.=<<___; +#include <sparc_arch.h> + +#ifdef __arch64__ +.register %g2,#scratch +.register %g3,#scratch +#endif + +#ifdef __PIC__ +SPARC_PIC_THUNK(%g1) +#endif + +.globl bn_GF2m_mul_2x2 +.align 16 +bn_GF2m_mul_2x2: + SPARC_LOAD_ADDRESS_LEAF(OPENSSL_sparcv9cap_P,%g1,%g5) + ld [%g1+0],%g1 ! OPENSSL_sparcv9cap_P[0] + + andcc %g1, SPARCV9_VIS3, %g0 + bz,pn %icc,.Lsoftware + nop + + sllx %o1, 32, %o1 + sllx %o3, 32, %o3 + or %o2, %o1, %o1 + or %o4, %o3, %o3 + .word 0x95b262ab ! xmulx %o1, %o3, %o2 + .word 0x99b262cb ! xmulxhi %o1, %o3, %o4 + srlx %o2, 32, %o1 ! 13 cycles later + st %o2, [%o0+0] + st %o1, [%o0+4] + srlx %o4, 32, %o3 + st %o4, [%o0+8] + retl + st %o3, [%o0+12] + +.align 16 +.Lsoftware: + save %sp,-STACK_FRAME-$locals,%sp + + sllx %i1,32,$a + mov -1,$a12 + sllx %i3,32,$b + or %i2,$a,$a + srlx $a12,1,$a48 ! 0x7fff... + or %i4,$b,$b + srlx $a12,2,$a12 ! 0x3fff... + add %sp,STACK_BIAS+STACK_FRAME,$tab + + sllx $a,2,$a4 + mov $a,$a1 + sllx $a,1,$a2 + + srax $a4,63,@i[1] ! broadcast 61st bit + and $a48,$a4,$a4 ! (a<<2)&0x7fff... + srlx $a48,2,$a48 + srax $a2,63,@i[0] ! broadcast 62nd bit + and $a12,$a2,$a2 ! (a<<1)&0x3fff... + srax $a1,63,$lo ! broadcast 63rd bit + and $a48,$a1,$a1 ! (a<<0)&0x1fff... + + sllx $a1,3,$a8 + and $b,$lo,$lo + and $b,@i[0],@i[0] + and $b,@i[1],@i[1] + + stx %g0,[$tab+0*8] ! tab[0]=0 + xor $a1,$a2,$a12 + stx $a1,[$tab+1*8] ! tab[1]=a1 + stx $a2,[$tab+2*8] ! tab[2]=a2 + xor $a4,$a8,$a48 + stx $a12,[$tab+3*8] ! tab[3]=a1^a2 + xor $a4,$a1,$a1 + + stx $a4,[$tab+4*8] ! tab[4]=a4 + xor $a4,$a2,$a2 + stx $a1,[$tab+5*8] ! tab[5]=a1^a4 + xor $a4,$a12,$a12 + stx $a2,[$tab+6*8] ! tab[6]=a2^a4 + xor $a48,$a1,$a1 + stx $a12,[$tab+7*8] ! tab[7]=a1^a2^a4 + xor $a48,$a2,$a2 + + stx $a8,[$tab+8*8] ! tab[8]=a8 + xor $a48,$a12,$a12 + stx $a1,[$tab+9*8] ! tab[9]=a1^a8 + xor $a4,$a1,$a1 + stx $a2,[$tab+10*8] ! tab[10]=a2^a8 + xor $a4,$a2,$a2 + stx $a12,[$tab+11*8] ! tab[11]=a1^a2^a8 + + xor $a4,$a12,$a12 + stx $a48,[$tab+12*8] ! tab[12]=a4^a8 + srlx $lo,1,$hi + stx $a1,[$tab+13*8] ! tab[13]=a1^a4^a8 + sllx $lo,63,$lo + stx $a2,[$tab+14*8] ! tab[14]=a2^a4^a8 + srlx @i[0],2,@T[0] + stx $a12,[$tab+15*8] ! tab[15]=a1^a2^a4^a8 + + sllx @i[0],62,$a1 + sllx $b,3,@i[0] + srlx @i[1],3,@T[1] + and @i[0],`0xf<<3`,@i[0] + sllx @i[1],61,$a2 + ldx [$tab+@i[0]],@i[0] + srlx $b,4-3,@i[1] + xor @T[0],$hi,$hi + and @i[1],`0xf<<3`,@i[1] + xor $a1,$lo,$lo + ldx [$tab+@i[1]],@i[1] + xor @T[1],$hi,$hi + + xor @i[0],$lo,$lo + srlx $b,8-3,@i[0] + xor $a2,$lo,$lo + and @i[0],`0xf<<3`,@i[0] +___ +for($n=1;$n<14;$n++) { +$code.=<<___; + sllx @i[1],`$n*4`,@T[0] + ldx [$tab+@i[0]],@i[0] + srlx @i[1],`64-$n*4`,@T[1] + xor @T[0],$lo,$lo + srlx $b,`($n+2)*4`-3,@i[1] + xor @T[1],$hi,$hi + and @i[1],`0xf<<3`,@i[1] +___ + push(@i,shift(@i)); push(@T,shift(@T)); +} +$code.=<<___; + sllx @i[1],`$n*4`,@T[0] + ldx [$tab+@i[0]],@i[0] + srlx @i[1],`64-$n*4`,@T[1] + xor @T[0],$lo,$lo + + sllx @i[0],`($n+1)*4`,@T[0] + xor @T[1],$hi,$hi + srlx @i[0],`64-($n+1)*4`,@T[1] + xor @T[0],$lo,$lo + xor @T[1],$hi,$hi + + srlx $lo,32,%i1 + st $lo,[%i0+0] + st %i1,[%i0+4] + srlx $hi,32,%i2 + st $hi,[%i0+8] + st %i2,[%i0+12] + + ret + restore +.type bn_GF2m_mul_2x2,#function +.size bn_GF2m_mul_2x2,.-bn_GF2m_mul_2x2 +.asciz "GF(2^m) Multiplication for SPARCv9, CRYPTOGAMS by <appro\@openssl.org>" +.align 4 +___ + +$code =~ s/\`([^\`]*)\`/eval($1)/gem; +print $code; +close STDOUT; |