X-Git-Url: https://code.wpia.club/?a=blobdiff_plain;f=lib%2Fopenssl%2Fcrypto%2Fbn%2Fasm%2Fvis3-mont.pl;fp=lib%2Fopenssl%2Fcrypto%2Fbn%2Fasm%2Fvis3-mont.pl;h=64dba4480fbe99da5c9b77cf6e795ea480751307;hb=02ed66432c92de70694700164f986190aad3cbc5;hp=0000000000000000000000000000000000000000;hpb=89016837dcbf2775cd15dc8cbaba00dc6379f86e;p=cassiopeia.git

diff --git a/lib/openssl/crypto/bn/asm/vis3-mont.pl b/lib/openssl/crypto/bn/asm/vis3-mont.pl
new file mode 100644
index 0000000..64dba44
--- /dev/null
+++ b/lib/openssl/crypto/bn/asm/vis3-mont.pl
@@ -0,0 +1,384 @@
+#! /usr/bin/env perl
+# Copyright 2012-2016 The OpenSSL Project Authors. All Rights Reserved.
+#
+# Licensed under the OpenSSL license (the "License").  You may not use
+# this file except in compliance with the License.  You can obtain a copy
+# in the file LICENSE in the source distribution or at
+# https://www.openssl.org/source/license.html
+
+
+# ====================================================================
+# Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
+# project. The module is, however, dual licensed under OpenSSL and
+# CRYPTOGAMS licenses depending on where you obtain it. For further
+# details see http://www.openssl.org/~appro/cryptogams/.
+# ====================================================================
+
+# October 2012.
+#
+# SPARCv9 VIS3 Montgomery multiplicaion procedure suitable for T3 and
+# onward. There are three new instructions used here: umulxhi,
+# addxc[cc] and initializing store. On T3 RSA private key operations
+# are 1.54/1.87/2.11/2.26 times faster for 512/1024/2048/4096-bit key
+# lengths. This is without dedicated squaring procedure. On T4
+# corresponding coefficients are 1.47/2.10/2.80/2.90x, which is mostly
+# for reference purposes, because T4 has dedicated Montgomery
+# multiplication and squaring *instructions* that deliver even more.
+
+$output = pop;
+open STDOUT,">$output";
+
+$frame = "STACK_FRAME";
+$bias = "STACK_BIAS";
+
+$code.=<<___;
+#include "sparc_arch.h"
+
+#ifdef	__arch64__
+.register	%g2,#scratch
+.register	%g3,#scratch
+#endif
+
+.section	".text",#alloc,#execinstr
+___
+
+($n0,$m0,$m1,$lo0,$hi0, $lo1,$hi1,$aj,$alo,$nj,$nlo,$tj)=
+	(map("%g$_",(1..5)),map("%o$_",(0..5,7)));
+
+# int bn_mul_mont(
+$rp="%o0";	# BN_ULONG *rp,
+$ap="%o1";	# const BN_ULONG *ap,
+$bp="%o2";	# const BN_ULONG *bp,
+$np="%o3";	# const BN_ULONG *np,
+$n0p="%o4";	# const BN_ULONG *n0,
+$num="%o5";	# int num);	# caller ensures that num is even
+				# and >=6
+$code.=<<___;
+.globl	bn_mul_mont_vis3
+.align	32
+bn_mul_mont_vis3:
+	add	%sp,	$bias,	%g4	! real top of stack
+	sll	$num,	2,	$num	! size in bytes
+	add	$num,	63,	%g5
+	andn	%g5,	63,	%g5	! buffer size rounded up to 64 bytes
+	add	%g5,	%g5,	%g1
+	add	%g5,	%g1,	%g1	! 3*buffer size
+	sub	%g4,	%g1,	%g1
+	andn	%g1,	63,	%g1	! align at 64 byte
+	sub	%g1,	$frame,	%g1	! new top of stack
+	sub	%g1,	%g4,	%g1
+
+	save	%sp,	%g1,	%sp
+___
+
+#	+-------------------------------+<-----	%sp
+#	.				.
+#	+-------------------------------+<-----	aligned at 64 bytes
+#	| __int64 tmp[0]		|
+#	+-------------------------------+
+#	.				.
+#	.				.
+#	+-------------------------------+<----- aligned at 64 bytes
+#	| __int64 ap[1..0]		|	converted ap[]
+#	+-------------------------------+
+#	| __int64 np[1..0]		|	converted np[]
+#	+-------------------------------+
+#	| __int64 ap[3..2]		|
+#	.				.
+#	.				.
+#	+-------------------------------+
+($rp,$ap,$bp,$np,$n0p,$num)=map("%i$_",(0..5));
+($t0,$t1,$t2,$t3,$cnt,$tp,$bufsz,$anp)=map("%l$_",(0..7));
+($ovf,$i)=($t0,$t1);
+$code.=<<___;
+	ld	[$n0p+0],	$t0	! pull n0[0..1] value
+	add	%sp, $bias+$frame, $tp
+	ld	[$n0p+4],	$t1
+	add	$tp,	%g5,	$anp
+	ld	[$bp+0],	$t2	! m0=bp[0]
+	sllx	$t1,	32,	$n0
+	ld	[$bp+4],	$t3
+	or	$t0,	$n0,	$n0
+	add	$bp,	8,	$bp
+
+	ld	[$ap+0],	$t0	! ap[0]
+	sllx	$t3,	32,	$m0
+	ld	[$ap+4],	$t1
+	or	$t2,	$m0,	$m0
+
+	ld	[$ap+8],	$t2	! ap[1]
+	sllx	$t1,	32,	$aj
+	ld	[$ap+12],	$t3
+	or	$t0,	$aj,	$aj
+	add	$ap,	16,	$ap
+	stx	$aj,	[$anp]		! converted ap[0]
+
+	mulx	$aj,	$m0,	$lo0	! ap[0]*bp[0]
+	umulxhi	$aj,	$m0,	$hi0
+
+	ld	[$np+0],	$t0	! np[0]
+	sllx	$t3,	32,	$aj
+	ld	[$np+4],	$t1
+	or	$t2,	$aj,	$aj
+
+	ld	[$np+8],	$t2	! np[1]
+	sllx	$t1,	32,	$nj
+	ld	[$np+12],	$t3
+	or	$t0, $nj,	$nj
+	add	$np,	16,	$np
+	stx	$nj,	[$anp+8]	! converted np[0]
+
+	mulx	$lo0,	$n0,	$m1	! "tp[0]"*n0
+	stx	$aj,	[$anp+16]	! converted ap[1]
+
+	mulx	$aj,	$m0,	$alo	! ap[1]*bp[0]
+	umulxhi	$aj,	$m0,	$aj	! ahi=aj
+
+	mulx	$nj,	$m1,	$lo1	! np[0]*m1
+	umulxhi	$nj,	$m1,	$hi1
+
+	sllx	$t3,	32,	$nj
+	or	$t2,	$nj,	$nj
+	stx	$nj,	[$anp+24]	! converted np[1]
+	add	$anp,	32,	$anp
+
+	addcc	$lo0,	$lo1,	$lo1
+	addxc	%g0,	$hi1,	$hi1
+
+	mulx	$nj,	$m1,	$nlo	! np[1]*m1
+	umulxhi	$nj,	$m1,	$nj	! nhi=nj
+
+	ba	.L1st
+	sub	$num,	24,	$cnt	! cnt=num-3
+
+.align	16
+.L1st:
+	ld	[$ap+0],	$t0	! ap[j]
+	addcc	$alo,	$hi0,	$lo0
+	ld	[$ap+4],	$t1
+	addxc	$aj,	%g0,	$hi0
+
+	sllx	$t1,	32,	$aj
+	add	$ap,	8,	$ap
+	or	$t0,	$aj,	$aj
+	stx	$aj,	[$anp]		! converted ap[j]
+
+	ld	[$np+0],	$t2	! np[j]
+	addcc	$nlo,	$hi1,	$lo1
+	ld	[$np+4],	$t3
+	addxc	$nj,	%g0,	$hi1	! nhi=nj
+
+	sllx	$t3,	32,	$nj
+	add	$np,	8,	$np
+	mulx	$aj,	$m0,	$alo	! ap[j]*bp[0]
+	or	$t2,	$nj,	$nj
+	umulxhi	$aj,	$m0,	$aj	! ahi=aj
+	stx	$nj,	[$anp+8]	! converted np[j]
+	add	$anp,	16,	$anp	! anp++
+
+	mulx	$nj,	$m1,	$nlo	! np[j]*m1
+	addcc	$lo0,	$lo1,	$lo1	! np[j]*m1+ap[j]*bp[0]
+	umulxhi	$nj,	$m1,	$nj	! nhi=nj
+	addxc	%g0,	$hi1,	$hi1
+	stx	$lo1,	[$tp]		! tp[j-1]
+	add	$tp,	8,	$tp	! tp++
+
+	brnz,pt	$cnt,	.L1st
+	sub	$cnt,	8,	$cnt	! j--
+!.L1st
+	addcc	$alo,	$hi0,	$lo0
+	addxc	$aj,	%g0,	$hi0	! ahi=aj
+
+	addcc	$nlo,	$hi1,	$lo1
+	addxc	$nj,	%g0,	$hi1
+	addcc	$lo0,	$lo1,	$lo1	! np[j]*m1+ap[j]*bp[0]
+	addxc	%g0,	$hi1,	$hi1
+	stx	$lo1,	[$tp]		! tp[j-1]
+	add	$tp,	8,	$tp
+
+	addcc	$hi0,	$hi1,	$hi1
+	addxc	%g0,	%g0,	$ovf	! upmost overflow bit
+	stx	$hi1,	[$tp]
+	add	$tp,	8,	$tp
+
+	ba	.Louter
+	sub	$num,	16,	$i	! i=num-2
+
+.align	16
+.Louter:
+	ld	[$bp+0],	$t2	! m0=bp[i]
+	ld	[$bp+4],	$t3
+
+	sub	$anp,	$num,	$anp	! rewind
+	sub	$tp,	$num,	$tp
+	sub	$anp,	$num,	$anp
+
+	add	$bp,	8,	$bp
+	sllx	$t3,	32,	$m0
+	ldx	[$anp+0],	$aj	! ap[0]
+	or	$t2,	$m0,	$m0
+	ldx	[$anp+8],	$nj	! np[0]
+
+	mulx	$aj,	$m0,	$lo0	! ap[0]*bp[i]
+	ldx	[$tp],		$tj	! tp[0]
+	umulxhi	$aj,	$m0,	$hi0
+	ldx	[$anp+16],	$aj	! ap[1]
+	addcc	$lo0,	$tj,	$lo0	! ap[0]*bp[i]+tp[0]
+	mulx	$aj,	$m0,	$alo	! ap[1]*bp[i]
+	addxc	%g0,	$hi0,	$hi0
+	mulx	$lo0,	$n0,	$m1	! tp[0]*n0
+	umulxhi	$aj,	$m0,	$aj	! ahi=aj
+	mulx	$nj,	$m1,	$lo1	! np[0]*m1
+	umulxhi	$nj,	$m1,	$hi1
+	ldx	[$anp+24],	$nj	! np[1]
+	add	$anp,	32,	$anp
+	addcc	$lo1,	$lo0,	$lo1
+	mulx	$nj,	$m1,	$nlo	! np[1]*m1
+	addxc	%g0,	$hi1,	$hi1
+	umulxhi	$nj,	$m1,	$nj	! nhi=nj
+
+	ba	.Linner
+	sub	$num,	24,	$cnt	! cnt=num-3
+.align	16
+.Linner:
+	addcc	$alo,	$hi0,	$lo0
+	ldx	[$tp+8],	$tj	! tp[j]
+	addxc	$aj,	%g0,	$hi0	! ahi=aj
+	ldx	[$anp+0],	$aj	! ap[j]
+	addcc	$nlo,	$hi1,	$lo1
+	mulx	$aj,	$m0,	$alo	! ap[j]*bp[i]
+	addxc	$nj,	%g0,	$hi1	! nhi=nj
+	ldx	[$anp+8],	$nj	! np[j]
+	add	$anp,	16,	$anp
+	umulxhi	$aj,	$m0,	$aj	! ahi=aj
+	addcc	$lo0,	$tj,	$lo0	! ap[j]*bp[i]+tp[j]
+	mulx	$nj,	$m1,	$nlo	! np[j]*m1
+	addxc	%g0,	$hi0,	$hi0
+	umulxhi	$nj,	$m1,	$nj	! nhi=nj
+	addcc	$lo1,	$lo0,	$lo1	! np[j]*m1+ap[j]*bp[i]+tp[j]
+	addxc	%g0,	$hi1,	$hi1
+	stx	$lo1,	[$tp]		! tp[j-1]
+	add	$tp,	8,	$tp
+	brnz,pt	$cnt,	.Linner
+	sub	$cnt,	8,	$cnt
+!.Linner
+	ldx	[$tp+8],	$tj	! tp[j]
+	addcc	$alo,	$hi0,	$lo0
+	addxc	$aj,	%g0,	$hi0	! ahi=aj
+	addcc	$lo0,	$tj,	$lo0	! ap[j]*bp[i]+tp[j]
+	addxc	%g0,	$hi0,	$hi0
+
+	addcc	$nlo,	$hi1,	$lo1
+	addxc	$nj,	%g0,	$hi1	! nhi=nj
+	addcc	$lo1,	$lo0,	$lo1	! np[j]*m1+ap[j]*bp[i]+tp[j]
+	addxc	%g0,	$hi1,	$hi1
+	stx	$lo1,	[$tp]		! tp[j-1]
+
+	subcc	%g0,	$ovf,	%g0	! move upmost overflow to CCR.xcc
+	addxccc	$hi1,	$hi0,	$hi1
+	addxc	%g0,	%g0,	$ovf
+	stx	$hi1,	[$tp+8]
+	add	$tp,	16,	$tp
+
+	brnz,pt	$i,	.Louter
+	sub	$i,	8,	$i
+
+	sub	$anp,	$num,	$anp	! rewind
+	sub	$tp,	$num,	$tp
+	sub	$anp,	$num,	$anp
+	ba	.Lsub
+	subcc	$num,	8,	$cnt	! cnt=num-1 and clear CCR.xcc
+
+.align	16
+.Lsub:
+	ldx	[$tp],		$tj
+	add	$tp,	8,	$tp
+	ldx	[$anp+8],	$nj
+	add	$anp,	16,	$anp
+	subccc	$tj,	$nj,	$t2	! tp[j]-np[j]
+	srlx	$tj,	32,	$tj
+	srlx	$nj,	32,	$nj
+	subccc	$tj,	$nj,	$t3
+	add	$rp,	8,	$rp
+	st	$t2,	[$rp-4]		! reverse order
+	st	$t3,	[$rp-8]
+	brnz,pt	$cnt,	.Lsub
+	sub	$cnt,	8,	$cnt
+
+	sub	$anp,	$num,	$anp	! rewind
+	sub	$tp,	$num,	$tp
+	sub	$anp,	$num,	$anp
+	sub	$rp,	$num,	$rp
+
+	subc	$ovf,	%g0,	$ovf	! handle upmost overflow bit
+	and	$tp,	$ovf,	$ap
+	andn	$rp,	$ovf,	$np
+	or	$np,	$ap,	$ap	! ap=borrow?tp:rp
+	ba	.Lcopy
+	sub	$num,	8,	$cnt
+
+.align	16
+.Lcopy:					! copy or in-place refresh
+	ld	[$ap+0],	$t2
+	ld	[$ap+4],	$t3
+	add	$ap,	8,	$ap
+	stx	%g0,	[$tp]		! zap
+	add	$tp,	8,	$tp
+	stx	%g0,	[$anp]		! zap
+	stx	%g0,	[$anp+8]
+	add	$anp,	16,	$anp
+	st	$t3,	[$rp+0]		! flip order
+	st	$t2,	[$rp+4]
+	add	$rp,	8,	$rp
+	brnz	$cnt,	.Lcopy
+	sub	$cnt,	8,	$cnt
+
+	mov	1,	%o0
+	ret
+	restore
+.type	bn_mul_mont_vis3, #function
+.size	bn_mul_mont_vis3, .-bn_mul_mont_vis3
+.asciz  "Montgomery Multiplication for SPARCv9 VIS3, CRYPTOGAMS by <appro\@openssl.org>"
+.align	4
+___
+
+# Purpose of these subroutines is to explicitly encode VIS instructions,
+# so that one can compile the module without having to specify VIS
+# extensions on compiler command line, e.g. -xarch=v9 vs. -xarch=v9a.
+# Idea is to reserve for option to produce "universal" binary and let
+# programmer detect if current CPU is VIS capable at run-time.
+sub unvis3 {
+my ($mnemonic,$rs1,$rs2,$rd)=@_;
+my %bias = ( "g" => 0, "o" => 8, "l" => 16, "i" => 24 );
+my ($ref,$opf);
+my %visopf = (	"addxc"		=> 0x011,
+		"addxccc"	=> 0x013,
+		"umulxhi"	=> 0x016	);
+
+    $ref = "$mnemonic\t$rs1,$rs2,$rd";
+
+    if ($opf=$visopf{$mnemonic}) {
+	foreach ($rs1,$rs2,$rd) {
+	    return $ref if (!/%([goli])([0-9])/);
+	    $_=$bias{$1}+$2;
+	}
+
+	return	sprintf ".word\t0x%08x !%s",
+			0x81b00000|$rd<<25|$rs1<<14|$opf<<5|$rs2,
+			$ref;
+    } else {
+	return $ref;
+    }
+}
+
+foreach (split("\n",$code)) {
+	s/\`([^\`]*)\`/eval $1/ge;
+
+	s/\b(umulxhi|addxc[c]{0,2})\s+(%[goli][0-7]),\s*(%[goli][0-7]),\s*(%[goli][0-7])/
+		&unvis3($1,$2,$3,$4)
+	 /ge;
+
+	print $_,"\n";
+}
+
+close STDOUT;