[openssl] master update
Dr. Paul Dale
pauli at openssl.org
Tue Feb 22 05:59:09 UTC 2022
The branch master has been updated
via f596bbe4da779b56eea34d96168b557d78e1149a (commit)
from 7b3041eba1c6e177eede0d6311d53a6b9ff58051 (commit)
- Log -----------------------------------------------------------------
commit f596bbe4da779b56eea34d96168b557d78e1149a
Author: Deepankar Bhattacharjee <deepankar.b at in.ibm.com>
Date: Mon Sep 20 10:45:15 2021 -0400
chacha20 performance optimizations for ppc64le with 8x lanes,
Performance increase around 50%.
Co-authored-by: Madhusudhanan Duraisamy <madurais at in.ibm.com>
Co-authored-by: Nilamjyoti Goswami <nilamgoswami at in.ibm.com>
Co-authored-by: Siva Sundar Anbareeswaran <srisivasundar at in.ibm.com>
Reviewed-by: Danny Tsen <dtsen at us.ibm.com>
Tested-by: Danny Tsen <dtsen at us.ibm.com>
Signed-off-by: Danny <dtsen at us.ibm.com>
Reviewed-by: Tomas Mraz <tomas at openssl.org>
Reviewed-by: Paul Dale <pauli at openssl.org>
(Merged from https://github.com/openssl/openssl/pull/16637)
-----------------------------------------------------------------------
Summary of changes:
crypto/chacha/asm/chachap10-ppc.pl | 1354 ++++++++++++++++++++++++++++++++++++
crypto/chacha/build.info | 3 +-
crypto/chacha/chacha_ppc.c | 15 +-
crypto/perlasm/ppc-xlate.pl | 17 +
crypto/ppccap.c | 9 +
crypto/ppccpuid.pl | 11 +
include/crypto/ppc_arch.h | 1 +
7 files changed, 1404 insertions(+), 6 deletions(-)
create mode 100755 crypto/chacha/asm/chachap10-ppc.pl
diff --git a/crypto/chacha/asm/chachap10-ppc.pl b/crypto/chacha/asm/chachap10-ppc.pl
new file mode 100755
index 0000000000..752fc731e2
--- /dev/null
+++ b/crypto/chacha/asm/chachap10-ppc.pl
@@ -0,0 +1,1354 @@
+#! /usr/bin/env perl
+# Copyright 2016-2020 The OpenSSL Project Authors. All Rights Reserved.
+#
+# Licensed under the Apache License 2.0 (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 at 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 2015
+#
+# ChaCha20 for PowerPC/AltiVec.
+#
+# June 2018
+#
+# Add VSX 2.07 code path. Original 3xAltiVec+1xIALU is well-suited for
+# processors that can't issue more than one vector instruction per
+# cycle. But POWER8 (and POWER9) can issue a pair, and vector-only 4x
+# interleave would perform better. Incidentally PowerISA 2.07 (first
+# implemented by POWER8) defined new usable instructions, hence 4xVSX
+# code path...
+#
+# Performance in cycles per byte out of large buffer.
+#
+# IALU/gcc-4.x 3xAltiVec+1xIALU 4xVSX
+#
+# Freescale e300 13.6/+115% - -
+# PPC74x0/G4e 6.81/+310% 3.81 -
+# PPC970/G5 9.29/+160% ? -
+# POWER7 8.62/+61% 3.35 -
+# POWER8 8.70/+51% 2.91 2.09
+# POWER9 8.80/+29% 4.44(*) 2.45(**)
+#
+# (*) this is trade-off result, it's possible to improve it, but
+# then it would negatively affect all others;
+# (**) POWER9 seems to be "allergic" to mixing vector and integer
+# instructions, which is why switch to vector-only code pays
+# off that much;
+
+# $output is the last argument if it looks like a file (it has an extension)
+# $flavour is the first argument if it doesn't look like a file
+$output = $#ARGV >= 0 && $ARGV[$#ARGV] =~ m|\.\w+$| ? pop : undef;
+$flavour = $#ARGV >= 0 && $ARGV[0] !~ m|\.| ? shift : undef;
+
+if ($flavour =~ /64/) {
+ $SIZE_T =8;
+ $LRSAVE =2*$SIZE_T;
+ $STU ="stdu";
+ $POP ="ld";
+ $PUSH ="std";
+ $UCMP ="cmpld";
+} elsif ($flavour =~ /32/) {
+ $SIZE_T =4;
+ $LRSAVE =$SIZE_T;
+ $STU ="stwu";
+ $POP ="lwz";
+ $PUSH ="stw";
+ $UCMP ="cmplw";
+} else { die "nonsense $flavour"; }
+
+$LITTLE_ENDIAN = ($flavour=~/le$/) ? 1 : 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 $flavour \"$output\""
+ or die "can't call $xlate: $!";
+
+$LOCALS=6*$SIZE_T;
+$FRAME=$LOCALS+64+18*$SIZE_T; # 64 is for local variables
+
+sub AUTOLOAD() # thunk [simplified] x86-style perlasm
+{ my $opcode = $AUTOLOAD; $opcode =~ s/.*:://; $opcode =~ s/_/\./;
+ $code .= "\t$opcode\t".join(',', at _)."\n";
+}
+
+my $sp = "r1";
+
+my ($out,$inp,$len,$key,$ctr) = map("r$_",(3..7));
+
+
+{{{
+my ($xa0,$xa1,$xa2,$xa3, $xb0,$xb1,$xb2,$xb3,
+ $xc0,$xc1,$xc2,$xc3, $xd0,$xd1,$xd2,$xd3) = map("v$_",(0..15));
+my @K = map("v$_",(16..19));
+my $CTR = "v26";
+my ($xt0,$xt1,$xt2,$xt3) = map("v$_",(27..30));
+my ($sixteen,$twelve,$eight,$seven) = ($xt0,$xt1,$xt2,$xt3);
+my $beperm = "v31";
+
+my ($x00,$x10,$x20,$x30) = (0, map("r$_",(8..10)));
+
+my $FRAME=$LOCALS+64+7*16; # 7*16 is for v26-v31 offload
+
+sub VSX_lane_ROUND_1x {
+my $a=@_[0];
+my $b=@_[1];
+my $c=@_[2];
+my $d=@_[3];
+my $odd=@_[4];
+ vadduwm ($a,$a,$b);
+ vxor ($d,$d,$a);
+ vrlw ($d,$d,$sixteen);
+ vadduwm ($c,$c,$d);
+ vxor ($b,$b,$c);
+ vrlw ($b,$b,$twelve);
+ vadduwm ($a,$a,$b);
+ vxor ($d,$d,$a);
+ vrlw ($d,$d,$eight);
+ vadduwm ($c,$c,$d);
+ vxor ($b,$b,$c);
+ vrlw ($b,$b,$seven);
+ xxsldwi ($c,$c,$c,2);
+ xxsldwi ($b,$b,$b,$odd?3:1);
+ xxsldwi ($d,$d,$d,$odd?1:3);
+}
+
+
+sub VSX_lane_ROUND_4x {
+my ($a0,$b0,$c0,$d0)=@_;
+my ($a1,$b1,$c1,$d1)=map(($_&~3)+(($_+1)&3),($a0,$b0,$c0,$d0));
+my ($a2,$b2,$c2,$d2)=map(($_&~3)+(($_+1)&3),($a1,$b1,$c1,$d1));
+my ($a3,$b3,$c3,$d3)=map(($_&~3)+(($_+1)&3),($a2,$b2,$c2,$d2));
+my @x=map("\"v$_\"",(0..15));
+
+ (
+ "&vadduwm (@x[$a0], at x[$a0], at x[$b0])", # Q1
+ "&vadduwm (@x[$a1], at x[$a1], at x[$b1])", # Q2
+ "&vadduwm (@x[$a2], at x[$a2], at x[$b2])", # Q3
+ "&vadduwm (@x[$a3], at x[$a3], at x[$b3])", # Q4
+ "&vxor (@x[$d0], at x[$d0], at x[$a0])",
+ "&vxor (@x[$d1], at x[$d1], at x[$a1])",
+ "&vxor (@x[$d2], at x[$d2], at x[$a2])",
+ "&vxor (@x[$d3], at x[$d3], at x[$a3])",
+ "&vrlw (@x[$d0], at x[$d0],'$sixteen')",
+ "&vrlw (@x[$d1], at x[$d1],'$sixteen')",
+ "&vrlw (@x[$d2], at x[$d2],'$sixteen')",
+ "&vrlw (@x[$d3], at x[$d3],'$sixteen')",
+
+ "&vadduwm (@x[$c0], at x[$c0], at x[$d0])",
+ "&vadduwm (@x[$c1], at x[$c1], at x[$d1])",
+ "&vadduwm (@x[$c2], at x[$c2], at x[$d2])",
+ "&vadduwm (@x[$c3], at x[$c3], at x[$d3])",
+ "&vxor (@x[$b0], at x[$b0], at x[$c0])",
+ "&vxor (@x[$b1], at x[$b1], at x[$c1])",
+ "&vxor (@x[$b2], at x[$b2], at x[$c2])",
+ "&vxor (@x[$b3], at x[$b3], at x[$c3])",
+ "&vrlw (@x[$b0], at x[$b0],'$twelve')",
+ "&vrlw (@x[$b1], at x[$b1],'$twelve')",
+ "&vrlw (@x[$b2], at x[$b2],'$twelve')",
+ "&vrlw (@x[$b3], at x[$b3],'$twelve')",
+
+ "&vadduwm (@x[$a0], at x[$a0], at x[$b0])",
+ "&vadduwm (@x[$a1], at x[$a1], at x[$b1])",
+ "&vadduwm (@x[$a2], at x[$a2], at x[$b2])",
+ "&vadduwm (@x[$a3], at x[$a3], at x[$b3])",
+ "&vxor (@x[$d0], at x[$d0], at x[$a0])",
+ "&vxor (@x[$d1], at x[$d1], at x[$a1])",
+ "&vxor (@x[$d2], at x[$d2], at x[$a2])",
+ "&vxor (@x[$d3], at x[$d3], at x[$a3])",
+ "&vrlw (@x[$d0], at x[$d0],'$eight')",
+ "&vrlw (@x[$d1], at x[$d1],'$eight')",
+ "&vrlw (@x[$d2], at x[$d2],'$eight')",
+ "&vrlw (@x[$d3], at x[$d3],'$eight')",
+
+ "&vadduwm (@x[$c0], at x[$c0], at x[$d0])",
+ "&vadduwm (@x[$c1], at x[$c1], at x[$d1])",
+ "&vadduwm (@x[$c2], at x[$c2], at x[$d2])",
+ "&vadduwm (@x[$c3], at x[$c3], at x[$d3])",
+ "&vxor (@x[$b0], at x[$b0], at x[$c0])",
+ "&vxor (@x[$b1], at x[$b1], at x[$c1])",
+ "&vxor (@x[$b2], at x[$b2], at x[$c2])",
+ "&vxor (@x[$b3], at x[$b3], at x[$c3])",
+ "&vrlw (@x[$b0], at x[$b0],'$seven')",
+ "&vrlw (@x[$b1], at x[$b1],'$seven')",
+ "&vrlw (@x[$b2], at x[$b2],'$seven')",
+ "&vrlw (@x[$b3], at x[$b3],'$seven')"
+ );
+}
+
+$code.=<<___;
+
+.globl .ChaCha20_ctr32_vsx_p10
+.align 5
+.ChaCha20_ctr32_vsx_p10:
+ ${UCMP}i $len,256
+ bgt ChaCha20_ctr32_vsx_8x
+ $STU $sp,-$FRAME($sp)
+ mflr r0
+ li r10,`15+$LOCALS+64`
+ li r11,`31+$LOCALS+64`
+ mfspr r12,256
+ stvx v26,r10,$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-4`($sp) # save vrsave
+ li r12,-4096+63
+ $PUSH r0, `$FRAME+$LRSAVE`($sp)
+ mtspr 256,r12 # preserve 29 AltiVec registers
+
+ bl Lconsts # returns pointer Lsigma in r12
+ lvx_4w @K[0],0,r12 # load sigma
+ addi r12,r12,0x70
+ li $x10,16
+ li $x20,32
+ li $x30,48
+ li r11,64
+
+ lvx_4w @K[1],0,$key # load key
+ lvx_4w @K[2],$x10,$key
+ lvx_4w @K[3],0,$ctr # load counter
+
+ vxor $xt0,$xt0,$xt0
+ lvx_4w $xt1,r11,r12
+ vspltw $CTR, at K[3],0
+ vsldoi @K[3], at K[3],$xt0,4
+ vsldoi @K[3],$xt0, at K[3],12 # clear @K[3].word[0]
+ vadduwm $CTR,$CTR,$xt1
+
+ be?lvsl $beperm,0,$x10 # 0x00..0f
+ be?vspltisb $xt0,3 # 0x03..03
+ be?vxor $beperm,$beperm,$xt0 # swap bytes within words
+
+ li r0,10 # inner loop counter
+ mtctr r0
+ b Loop_outer_vsx
+
+.align 5
+Loop_outer_vsx:
+ lvx $xa0,$x00,r12 # load [smashed] sigma
+ lvx $xa1,$x10,r12
+ lvx $xa2,$x20,r12
+ lvx $xa3,$x30,r12
+
+ vspltw $xb0, at K[1],0 # smash the key
+ vspltw $xb1, at K[1],1
+ vspltw $xb2, at K[1],2
+ vspltw $xb3, at K[1],3
+
+ vspltw $xc0, at K[2],0
+ vspltw $xc1, at K[2],1
+ vspltw $xc2, at K[2],2
+ vspltw $xc3, at K[2],3
+
+ vmr $xd0,$CTR # smash the counter
+ vspltw $xd1, at K[3],1
+ vspltw $xd2, at K[3],2
+ vspltw $xd3, at K[3],3
+
+ vspltisw $sixteen,-16 # synthesize constants
+ vspltisw $twelve,12
+ vspltisw $eight,8
+ vspltisw $seven,7
+
+ ${UCMP}i $len,64
+ bgt Loop_vsx_4x
+
+ vmr $xa0, at K[0]
+ vmr $xb0, at K[1]
+ vmr $xc0, at K[2]
+ vmr $xd0, at K[3]
+
+Loop_vsx_1x:
+___
+ VSX_lane_ROUND_1x($xa0, $xb0, $xc0,$xd0,0);
+ VSX_lane_ROUND_1x($xa0, $xb0, $xc0,$xd0,1);
+
+$code.=<<___;
+
+ bdnz Loop_vsx_1x
+
+ vadduwm $xa0, $xa0, @K[0]
+ vadduwm $xb0, $xb0, @K[1]
+ vadduwm $xc0, $xc0, @K[2]
+ vadduwm $xd0, $xd0, @K[3]
+ ${UCMP}i $len,0x40
+ blt Ltail_vsx
+
+ lvx_4w $xt0,$x00, $inp
+ lvx_4w $xt1,$x10, $inp
+ lvx_4w $xt2,$x20, $inp
+ lvx_4w $xt3,$x30, $inp
+
+ vxor $xa0,$xa0,$xt0
+ vxor $xb0,$xb0,$xt1
+ vxor $xc0,$xc0,$xt2
+ vxor $xd0,$xd0,$xt3
+
+ stvx_4w $xa0,$x00,$out
+ stvx_4w $xb0,$x10,$out
+ addi $inp,$inp,0x40
+ stvx_4w $xc0,$x20,$out
+ subi $len,$len,0x40
+ stvx_4w $xd0,$x30,$out
+ addi $out,$out,0x40
+ beq Ldone_vsx
+
+Loop_vsx_4x:
+___
+ foreach (&VSX_lane_ROUND_4x(0, 4, 8,12)) { eval; }
+ foreach (&VSX_lane_ROUND_4x(0, 5,10,15)) { eval; }
+$code.=<<___;
+
+ bdnz Loop_vsx_4x
+
+ vadduwm $xd0,$xd0,$CTR
+
+ vmrgew $xt0,$xa0,$xa1 # transpose data
+ vmrgew $xt1,$xa2,$xa3
+ vmrgow $xa0,$xa0,$xa1
+ vmrgow $xa2,$xa2,$xa3
+ vmrgew $xt2,$xb0,$xb1
+ vmrgew $xt3,$xb2,$xb3
+ vpermdi $xa1,$xa0,$xa2,0b00
+ vpermdi $xa3,$xa0,$xa2,0b11
+ vpermdi $xa0,$xt0,$xt1,0b00
+ vpermdi $xa2,$xt0,$xt1,0b11
+
+ vmrgow $xb0,$xb0,$xb1
+ vmrgow $xb2,$xb2,$xb3
+ vmrgew $xt0,$xc0,$xc1
+ vmrgew $xt1,$xc2,$xc3
+ vpermdi $xb1,$xb0,$xb2,0b00
+ vpermdi $xb3,$xb0,$xb2,0b11
+ vpermdi $xb0,$xt2,$xt3,0b00
+ vpermdi $xb2,$xt2,$xt3,0b11
+
+ vmrgow $xc0,$xc0,$xc1
+ vmrgow $xc2,$xc2,$xc3
+ vmrgew $xt2,$xd0,$xd1
+ vmrgew $xt3,$xd2,$xd3
+ vpermdi $xc1,$xc0,$xc2,0b00
+ vpermdi $xc3,$xc0,$xc2,0b11
+ vpermdi $xc0,$xt0,$xt1,0b00
+ vpermdi $xc2,$xt0,$xt1,0b11
+
+ vmrgow $xd0,$xd0,$xd1
+ vmrgow $xd2,$xd2,$xd3
+ vspltisw $xt0,4
+ vadduwm $CTR,$CTR,$xt0 # next counter value
+ vpermdi $xd1,$xd0,$xd2,0b00
+ vpermdi $xd3,$xd0,$xd2,0b11
+ vpermdi $xd0,$xt2,$xt3,0b00
+ vpermdi $xd2,$xt2,$xt3,0b11
+
+ vadduwm $xa0,$xa0, at K[0]
+ vadduwm $xb0,$xb0, at K[1]
+ vadduwm $xc0,$xc0, at K[2]
+ vadduwm $xd0,$xd0, at K[3]
+
+ be?vperm $xa0,$xa0,$xa0,$beperm
+ be?vperm $xb0,$xb0,$xb0,$beperm
+ be?vperm $xc0,$xc0,$xc0,$beperm
+ be?vperm $xd0,$xd0,$xd0,$beperm
+
+ ${UCMP}i $len,0x40
+ blt Ltail_vsx
+
+ lvx_4w $xt0,$x00,$inp
+ lvx_4w $xt1,$x10,$inp
+ lvx_4w $xt2,$x20,$inp
+ lvx_4w $xt3,$x30,$inp
+
+ vxor $xt0,$xt0,$xa0
+ vxor $xt1,$xt1,$xb0
+ vxor $xt2,$xt2,$xc0
+ vxor $xt3,$xt3,$xd0
+
+ stvx_4w $xt0,$x00,$out
+ stvx_4w $xt1,$x10,$out
+ addi $inp,$inp,0x40
+ stvx_4w $xt2,$x20,$out
+ subi $len,$len,0x40
+ stvx_4w $xt3,$x30,$out
+ addi $out,$out,0x40
+ beq Ldone_vsx
+
+ vadduwm $xa0,$xa1, at K[0]
+ vadduwm $xb0,$xb1, at K[1]
+ vadduwm $xc0,$xc1, at K[2]
+ vadduwm $xd0,$xd1, at K[3]
+
+ be?vperm $xa0,$xa0,$xa0,$beperm
+ be?vperm $xb0,$xb0,$xb0,$beperm
+ be?vperm $xc0,$xc0,$xc0,$beperm
+ be?vperm $xd0,$xd0,$xd0,$beperm
+
+ ${UCMP}i $len,0x40
+ blt Ltail_vsx
+
+ lvx_4w $xt0,$x00,$inp
+ lvx_4w $xt1,$x10,$inp
+ lvx_4w $xt2,$x20,$inp
+ lvx_4w $xt3,$x30,$inp
+
+ vxor $xt0,$xt0,$xa0
+ vxor $xt1,$xt1,$xb0
+ vxor $xt2,$xt2,$xc0
+ vxor $xt3,$xt3,$xd0
+
+ stvx_4w $xt0,$x00,$out
+ stvx_4w $xt1,$x10,$out
+ addi $inp,$inp,0x40
+ stvx_4w $xt2,$x20,$out
+ subi $len,$len,0x40
+ stvx_4w $xt3,$x30,$out
+ addi $out,$out,0x40
+ beq Ldone_vsx
+
+ vadduwm $xa0,$xa2, at K[0]
+ vadduwm $xb0,$xb2, at K[1]
+ vadduwm $xc0,$xc2, at K[2]
+ vadduwm $xd0,$xd2, at K[3]
+
+ be?vperm $xa0,$xa0,$xa0,$beperm
+ be?vperm $xb0,$xb0,$xb0,$beperm
+ be?vperm $xc0,$xc0,$xc0,$beperm
+ be?vperm $xd0,$xd0,$xd0,$beperm
+
+ ${UCMP}i $len,0x40
+ blt Ltail_vsx
+
+ lvx_4w $xt0,$x00,$inp
+ lvx_4w $xt1,$x10,$inp
+ lvx_4w $xt2,$x20,$inp
+ lvx_4w $xt3,$x30,$inp
+
+ vxor $xt0,$xt0,$xa0
+ vxor $xt1,$xt1,$xb0
+ vxor $xt2,$xt2,$xc0
+ vxor $xt3,$xt3,$xd0
+
+ stvx_4w $xt0,$x00,$out
+ stvx_4w $xt1,$x10,$out
+ addi $inp,$inp,0x40
+ stvx_4w $xt2,$x20,$out
+ subi $len,$len,0x40
+ stvx_4w $xt3,$x30,$out
+ addi $out,$out,0x40
+ beq Ldone_vsx
+
+ vadduwm $xa0,$xa3, at K[0]
+ vadduwm $xb0,$xb3, at K[1]
+ vadduwm $xc0,$xc3, at K[2]
+ vadduwm $xd0,$xd3, at K[3]
+
+ be?vperm $xa0,$xa0,$xa0,$beperm
+ be?vperm $xb0,$xb0,$xb0,$beperm
+ be?vperm $xc0,$xc0,$xc0,$beperm
+ be?vperm $xd0,$xd0,$xd0,$beperm
+
+ ${UCMP}i $len,0x40
+ blt Ltail_vsx
+
+ lvx_4w $xt0,$x00,$inp
+ lvx_4w $xt1,$x10,$inp
+ lvx_4w $xt2,$x20,$inp
+ lvx_4w $xt3,$x30,$inp
+
+ vxor $xt0,$xt0,$xa0
+ vxor $xt1,$xt1,$xb0
+ vxor $xt2,$xt2,$xc0
+ vxor $xt3,$xt3,$xd0
+
+ stvx_4w $xt0,$x00,$out
+ stvx_4w $xt1,$x10,$out
+ addi $inp,$inp,0x40
+ stvx_4w $xt2,$x20,$out
+ subi $len,$len,0x40
+ stvx_4w $xt3,$x30,$out
+ addi $out,$out,0x40
+ mtctr r0
+ bne Loop_outer_vsx
+
+Ldone_vsx:
+ lwz r12,`$FRAME-4`($sp) # pull vrsave
+ li r10,`15+$LOCALS+64`
+ li r11,`31+$LOCALS+64`
+ $POP r0, `$FRAME+$LRSAVE`($sp)
+ mtspr 256,r12 # restore vrsave
+ 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
+ mtlr r0
+ addi $sp,$sp,$FRAME
+ blr
+
+.align 4
+Ltail_vsx:
+ addi r11,$sp,$LOCALS
+ mtctr $len
+ stvx_4w $xa0,$x00,r11 # offload block to stack
+ stvx_4w $xb0,$x10,r11
+ stvx_4w $xc0,$x20,r11
+ stvx_4w $xd0,$x30,r11
+ subi r12,r11,1 # prepare for *++ptr
+ subi $inp,$inp,1
+ subi $out,$out,1
+
+Loop_tail_vsx:
+ lbzu r6,1(r12)
+ lbzu r7,1($inp)
+ xor r6,r6,r7
+ stbu r6,1($out)
+ bdnz Loop_tail_vsx
+
+ stvx_4w $K[0],$x00,r11 # wipe copy of the block
+ stvx_4w $K[0],$x10,r11
+ stvx_4w $K[0],$x20,r11
+ stvx_4w $K[0],$x30,r11
+
+ b Ldone_vsx
+ .long 0
+ .byte 0,12,0x04,1,0x80,0,5,0
+ .long 0
+.size .ChaCha20_ctr32_vsx_p10,.-.ChaCha20_ctr32_vsx_p10
+___
+}}}
+
+##This is 8 block in parallel implementation. The heart of chacha round uses vector instruction that has access to
+# vsr[32+X]. To perform the 8 parallel block we tend to use all 32 register to hold the 8 block info.
+# WE need to store few register value on side, so we can use VSR{32+X} for few vector instructions used in round op and hold intermediate value.
+# WE use the VSR[0]-VSR[31] for holding intermediate value and perform 8 block in parallel.
+#
+{{{
+#### ($out,$inp,$len,$key,$ctr) = map("r$_",(3..7));
+my ($xa0,$xa1,$xa2,$xa3, $xb0,$xb1,$xb2,$xb3,
+ $xc0,$xc1,$xc2,$xc3, $xd0,$xd1,$xd2,$xd3,
+ $xa4,$xa5,$xa6,$xa7, $xb4,$xb5,$xb6,$xb7,
+ $xc4,$xc5,$xc6,$xc7, $xd4,$xd5,$xd6,$xd7) = map("v$_",(0..31));
+my ($xcn4,$xcn5,$xcn6,$xcn7, $xdn4,$xdn5,$xdn6,$xdn7) = map("v$_",(8..15));
+my ($xan0,$xbn0,$xcn0,$xdn0) = map("v$_",(0..3));
+my @K = map("v$_",27,(24..26));
+my ($xt0,$xt1,$xt2,$xt3,$xt4) = map("v$_",23,(28..31));
+my $xr0 = "v4";
+my $CTR0 = "v22";
+my $CTR1 = "v5";
+my $beperm = "v31";
+my ($x00,$x10,$x20,$x30) = (0, map("r$_",(8..10)));
+my ($xv0,$xv1,$xv2,$xv3,$xv4,$xv5,$xv6,$xv7) = map("v$_",(0..7));
+my ($xv8,$xv9,$xv10,$xv11,$xv12,$xv13,$xv14,$xv15,$xv16,$xv17) = map("v$_",(8..17));
+my ($xv18,$xv19,$xv20,$xv21) = map("v$_",(18..21));
+my ($xv22,$xv23,$xv24,$xv25,$xv26) = map("v$_",(22..26));
+
+my $FRAME=$LOCALS+64+9*16; # 8*16 is for v24-v31 offload
+
+sub VSX_lane_ROUND_8x {
+my ($a0,$b0,$c0,$d0,$a4,$b4,$c4,$d4)=@_;
+my ($a1,$b1,$c1,$d1)=map(($_&~3)+(($_+1)&3),($a0,$b0,$c0,$d0));
+my ($a2,$b2,$c2,$d2)=map(($_&~3)+(($_+1)&3),($a1,$b1,$c1,$d1));
+my ($a3,$b3,$c3,$d3)=map(($_&~3)+(($_+1)&3),($a2,$b2,$c2,$d2));
+my ($a5,$b5,$c5,$d5)=map(($_&~3)+(($_+1)&3),($a4,$b4,$c4,$d4));
+my ($a6,$b6,$c6,$d6)=map(($_&~3)+(($_+1)&3),($a5,$b5,$c5,$d5));
+my ($a7,$b7,$c7,$d7)=map(($_&~3)+(($_+1)&3),($a6,$b6,$c6,$d6));
+my ($xv8,$xv9,$xv10,$xv11,$xv12,$xv13,$xv14,$xv15,$xv16,$xv17) = map("\"v$_\"",(8..17));
+my @x=map("\"v$_\"",(0..31));
+
+ (
+ "&vxxlor ($xv15 , at x[$c7], at x[$c7])", #copy v30 to v13
+ "&vxxlorc (@x[$c7], $xv9,$xv9)",
+
+ "&vadduwm (@x[$a0], at x[$a0], at x[$b0])", # Q1
+ "&vadduwm (@x[$a1], at x[$a1], at x[$b1])", # Q2
+ "&vadduwm (@x[$a2], at x[$a2], at x[$b2])", # Q3
+ "&vadduwm (@x[$a3], at x[$a3], at x[$b3])", # Q4
+ "&vadduwm (@x[$a4], at x[$a4], at x[$b4])", # Q1
+ "&vadduwm (@x[$a5], at x[$a5], at x[$b5])", # Q2
+ "&vadduwm (@x[$a6], at x[$a6], at x[$b6])", # Q3
+ "&vadduwm (@x[$a7], at x[$a7], at x[$b7])", # Q4
+
+ "&vxor (@x[$d0], at x[$d0], at x[$a0])",
+ "&vxor (@x[$d1], at x[$d1], at x[$a1])",
+ "&vxor (@x[$d2], at x[$d2], at x[$a2])",
+ "&vxor (@x[$d3], at x[$d3], at x[$a3])",
+ "&vxor (@x[$d4], at x[$d4], at x[$a4])",
+ "&vxor (@x[$d5], at x[$d5], at x[$a5])",
+ "&vxor (@x[$d6], at x[$d6], at x[$a6])",
+ "&vxor (@x[$d7], at x[$d7], at x[$a7])",
+
+ "&vrlw (@x[$d0], at x[$d0], at x[$c7])",
+ "&vrlw (@x[$d1], at x[$d1], at x[$c7])",
+ "&vrlw (@x[$d2], at x[$d2], at x[$c7])",
+ "&vrlw (@x[$d3], at x[$d3], at x[$c7])",
+ "&vrlw (@x[$d4], at x[$d4], at x[$c7])",
+ "&vrlw (@x[$d5], at x[$d5], at x[$c7])",
+ "&vrlw (@x[$d6], at x[$d6], at x[$c7])",
+ "&vrlw (@x[$d7], at x[$d7], at x[$c7])",
+
+ "&vxxlor ($xv13 , at x[$a7], at x[$a7])",
+ "&vxxlorc (@x[$c7], $xv15,$xv15)",
+ "&vxxlorc (@x[$a7], $xv10,$xv10)",
+
+ "&vadduwm (@x[$c0], at x[$c0], at x[$d0])",
+ "&vadduwm (@x[$c1], at x[$c1], at x[$d1])",
+ "&vadduwm (@x[$c2], at x[$c2], at x[$d2])",
+ "&vadduwm (@x[$c3], at x[$c3], at x[$d3])",
+ "&vadduwm (@x[$c4], at x[$c4], at x[$d4])",
+ "&vadduwm (@x[$c5], at x[$c5], at x[$d5])",
+ "&vadduwm (@x[$c6], at x[$c6], at x[$d6])",
+ "&vadduwm (@x[$c7], at x[$c7], at x[$d7])",
+
+ "&vxor (@x[$b0], at x[$b0], at x[$c0])",
+ "&vxor (@x[$b1], at x[$b1], at x[$c1])",
+ "&vxor (@x[$b2], at x[$b2], at x[$c2])",
+ "&vxor (@x[$b3], at x[$b3], at x[$c3])",
+ "&vxor (@x[$b4], at x[$b4], at x[$c4])",
+ "&vxor (@x[$b5], at x[$b5], at x[$c5])",
+ "&vxor (@x[$b6], at x[$b6], at x[$c6])",
+ "&vxor (@x[$b7], at x[$b7], at x[$c7])",
+
+ "&vrlw (@x[$b0], at x[$b0], at x[$a7])",
+ "&vrlw (@x[$b1], at x[$b1], at x[$a7])",
+ "&vrlw (@x[$b2], at x[$b2], at x[$a7])",
+ "&vrlw (@x[$b3], at x[$b3], at x[$a7])",
+ "&vrlw (@x[$b4], at x[$b4], at x[$a7])",
+ "&vrlw (@x[$b5], at x[$b5], at x[$a7])",
+ "&vrlw (@x[$b6], at x[$b6], at x[$a7])",
+ "&vrlw (@x[$b7], at x[$b7], at x[$a7])",
+
+ "&vxxlorc (@x[$a7], $xv13,$xv13)",
+ "&vxxlor ($xv15 , at x[$c7], at x[$c7])",
+ "&vxxlorc (@x[$c7], $xv11,$xv11)",
+
+
+ "&vadduwm (@x[$a0], at x[$a0], at x[$b0])",
+ "&vadduwm (@x[$a1], at x[$a1], at x[$b1])",
+ "&vadduwm (@x[$a2], at x[$a2], at x[$b2])",
+ "&vadduwm (@x[$a3], at x[$a3], at x[$b3])",
+ "&vadduwm (@x[$a4], at x[$a4], at x[$b4])",
+ "&vadduwm (@x[$a5], at x[$a5], at x[$b5])",
+ "&vadduwm (@x[$a6], at x[$a6], at x[$b6])",
+ "&vadduwm (@x[$a7], at x[$a7], at x[$b7])",
+
+ "&vxor (@x[$d0], at x[$d0], at x[$a0])",
+ "&vxor (@x[$d1], at x[$d1], at x[$a1])",
+ "&vxor (@x[$d2], at x[$d2], at x[$a2])",
+ "&vxor (@x[$d3], at x[$d3], at x[$a3])",
+ "&vxor (@x[$d4], at x[$d4], at x[$a4])",
+ "&vxor (@x[$d5], at x[$d5], at x[$a5])",
+ "&vxor (@x[$d6], at x[$d6], at x[$a6])",
+ "&vxor (@x[$d7], at x[$d7], at x[$a7])",
+
+ "&vrlw (@x[$d0], at x[$d0], at x[$c7])",
+ "&vrlw (@x[$d1], at x[$d1], at x[$c7])",
+ "&vrlw (@x[$d2], at x[$d2], at x[$c7])",
+ "&vrlw (@x[$d3], at x[$d3], at x[$c7])",
+ "&vrlw (@x[$d4], at x[$d4], at x[$c7])",
+ "&vrlw (@x[$d5], at x[$d5], at x[$c7])",
+ "&vrlw (@x[$d6], at x[$d6], at x[$c7])",
+ "&vrlw (@x[$d7], at x[$d7], at x[$c7])",
+
+ "&vxxlorc (@x[$c7], $xv15,$xv15)",
+ "&vxxlor ($xv13 , at x[$a7], at x[$a7])",
+ "&vxxlorc (@x[$a7], $xv12,$xv12)",
+
+ "&vadduwm (@x[$c0], at x[$c0], at x[$d0])",
+ "&vadduwm (@x[$c1], at x[$c1], at x[$d1])",
+ "&vadduwm (@x[$c2], at x[$c2], at x[$d2])",
+ "&vadduwm (@x[$c3], at x[$c3], at x[$d3])",
+ "&vadduwm (@x[$c4], at x[$c4], at x[$d4])",
+ "&vadduwm (@x[$c5], at x[$c5], at x[$d5])",
+ "&vadduwm (@x[$c6], at x[$c6], at x[$d6])",
+ "&vadduwm (@x[$c7], at x[$c7], at x[$d7])",
+ "&vxor (@x[$b0], at x[$b0], at x[$c0])",
+ "&vxor (@x[$b1], at x[$b1], at x[$c1])",
+ "&vxor (@x[$b2], at x[$b2], at x[$c2])",
+ "&vxor (@x[$b3], at x[$b3], at x[$c3])",
+ "&vxor (@x[$b4], at x[$b4], at x[$c4])",
+ "&vxor (@x[$b5], at x[$b5], at x[$c5])",
+ "&vxor (@x[$b6], at x[$b6], at x[$c6])",
+ "&vxor (@x[$b7], at x[$b7], at x[$c7])",
+ "&vrlw (@x[$b0], at x[$b0], at x[$a7])",
+ "&vrlw (@x[$b1], at x[$b1], at x[$a7])",
+ "&vrlw (@x[$b2], at x[$b2], at x[$a7])",
+ "&vrlw (@x[$b3], at x[$b3], at x[$a7])",
+ "&vrlw (@x[$b4], at x[$b4], at x[$a7])",
+ "&vrlw (@x[$b5], at x[$b5], at x[$a7])",
+ "&vrlw (@x[$b6], at x[$b6], at x[$a7])",
+ "&vrlw (@x[$b7], at x[$b7], at x[$a7])",
+
+ "&vxxlorc (@x[$a7], $xv13,$xv13)",
+ );
+}
+
+$code.=<<___;
+
+.globl .ChaCha20_ctr32_vsx_8x
+.align 5
+.ChaCha20_ctr32_vsx_8x:
+ $STU $sp,-$FRAME($sp)
+ mflr r0
+ li r10,`15+$LOCALS+64`
+ li r11,`31+$LOCALS+64`
+ mfspr r12,256
+ stvx v24,r10,$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-4`($sp) # save vrsave
+ li r12,-4096+63
+ $PUSH r0, `$FRAME+$LRSAVE`($sp)
+ mtspr 256,r12 # preserve 29 AltiVec registers
+
+ bl Lconsts # returns pointer Lsigma in r12
+
+ lvx_4w @K[0],0,r12 # load sigma
+ addi r12,r12,0x70
+ li $x10,16
+ li $x20,32
+ li $x30,48
+ li r11,64
+
+ vspltisw $xa4,-16 # synthesize constants
+ vspltisw $xb4,12 # synthesize constants
+ vspltisw $xc4,8 # synthesize constants
+ vspltisw $xd4,7 # synthesize constants
+
+ lvx $xa0,$x00,r12 # load [smashed] sigma
+ lvx $xa1,$x10,r12
+ lvx $xa2,$x20,r12
+ lvx $xa3,$x30,r12
+
+ vxxlor $xv9 ,$xa4,$xa4 #save shift val in vr9-12
+ vxxlor $xv10 ,$xb4,$xb4
+ vxxlor $xv11 ,$xc4,$xc4
+ vxxlor $xv12 ,$xd4,$xd4
+ vxxlor $xv22 ,$xa0,$xa0 #save sigma in vr22-25
+ vxxlor $xv23 ,$xa1,$xa1
+ vxxlor $xv24 ,$xa2,$xa2
+ vxxlor $xv25 ,$xa3,$xa3
+
+ lvx_4w @K[1],0,$key # load key
+ lvx_4w @K[2],$x10,$key
+ lvx_4w @K[3],0,$ctr # load counter
+ vspltisw $xt3,4
+
+
+ vxor $xt2,$xt2,$xt2
+ lvx_4w $xt1,r11,r12
+ vspltw $xa2, at K[3],0 #save the original count after spltw
+ vsldoi @K[3], at K[3],$xt2,4
+ vsldoi @K[3],$xt2, at K[3],12 # clear @K[3].word[0]
+ vadduwm $xt1,$xa2,$xt1
+ vadduwm $xt3,$xt1,$xt3 # next counter value
+ vspltw $xa0, at K[2],2 # save the K[2] spltw 2 and save v8.
+
+ be?lvsl $beperm,0,$x10 # 0x00..0f
+ be?vspltisb $xt0,3 # 0x03..03
+ be?vxor $beperm,$beperm,$xt0 # swap bytes within words
+ be?vxxlor $xv26 ,$beperm,$beperm
+
+ vxxlor $xv0 , at K[0], at K[0] # K0,k1,k2 to vr0,1,2
+ vxxlor $xv1 , at K[1], at K[1]
+ vxxlor $xv2 , at K[2], at K[2]
+ vxxlor $xv3 , at K[3], at K[3]
+ vxxlor $xv4 ,$xt1,$xt1 #CTR ->4, CTR+4-> 5
+ vxxlor $xv5 ,$xt3,$xt3
+ vxxlor $xv8 ,$xa0,$xa0
+
+ li r0,10 # inner loop counter
+ mtctr r0
+ b Loop_outer_vsx_8x
+
+.align 5
+Loop_outer_vsx_8x:
+ vxxlorc $xa0,$xv22,$xv22 # load [smashed] sigma
+ vxxlorc $xa1,$xv23,$xv23
+ vxxlorc $xa2,$xv24,$xv24
+ vxxlorc $xa3,$xv25,$xv25
+ vxxlorc $xa4,$xv22,$xv22
+ vxxlorc $xa5,$xv23,$xv23
+ vxxlorc $xa6,$xv24,$xv24
+ vxxlorc $xa7,$xv25,$xv25
+
+ vspltw $xb0, at K[1],0 # smash the key
+ vspltw $xb1, at K[1],1
+ vspltw $xb2, at K[1],2
+ vspltw $xb3, at K[1],3
+ vspltw $xb4, at K[1],0 # smash the key
+ vspltw $xb5, at K[1],1
+ vspltw $xb6, at K[1],2
+ vspltw $xb7, at K[1],3
+
+ vspltw $xc0, at K[2],0
+ vspltw $xc1, at K[2],1
+ vspltw $xc2, at K[2],2
+ vspltw $xc3, at K[2],3
+ vspltw $xc4, at K[2],0
+ vspltw $xc7, at K[2],3
+ vspltw $xc5, at K[2],1
+
+ vxxlorc $xd0,$xv4,$xv4 # smash the counter
+ vspltw $xd1, at K[3],1
+ vspltw $xd2, at K[3],2
+ vspltw $xd3, at K[3],3
+ vxxlorc $xd4,$xv5,$xv5 # smash the counter
+ vspltw $xd5, at K[3],1
+ vspltw $xd6, at K[3],2
+ vspltw $xd7, at K[3],3
+ vxxlorc $xc6,$xv8,$xv8 #copy of vlspt k[2],2 is in v8.v26 ->k[3] so need to wait until k3 is done
+
+Loop_vsx_8x:
+___
+ foreach (&VSX_lane_ROUND_8x(0,4, 8,12,16,20,24,28)) { eval; }
+ foreach (&VSX_lane_ROUND_8x(0,5,10,15,16,21,26,31)) { eval; }
+$code.=<<___;
+
+ bdnz Loop_vsx_8x
+ vxxlor $xv13 ,$xd4,$xd4 # save the register vr24-31
+ vxxlor $xv14 ,$xd5,$xd5 #
+ vxxlor $xv15 ,$xd6,$xd6 #
+ vxxlor $xv16 ,$xd7,$xd7 #
+
+ vxxlor $xv18 ,$xc4,$xc4 #
+ vxxlor $xv19 ,$xc5,$xc5 #
+ vxxlor $xv20 ,$xc6,$xc6 #
+ vxxlor $xv21 ,$xc7,$xc7 #
+
+ vxxlor $xv6 ,$xb6,$xb6 # save vr23, so we get 8 regs
+ vxxlor $xv7 ,$xb7,$xb7 # save vr23, so we get 8 regs
+ be?vxxlorc $beperm,$xv26,$xv26 # copy back the the beperm.
+
+ vxxlorc @K[0],$xv0,$xv0 #27
+ vxxlorc @K[1],$xv1,$xv1 #24
+ vxxlorc @K[2],$xv2,$xv2 #25
+ vxxlorc @K[3],$xv3,$xv3 #26
+ vxxlorc $CTR0,$xv4,$xv4
+###changing to vertical
+
+ vmrgew $xt0,$xa0,$xa1 # transpose data
+ vmrgew $xt1,$xa2,$xa3
+ vmrgow $xa0,$xa0,$xa1
+ vmrgow $xa2,$xa2,$xa3
+
+ vmrgew $xt2,$xb0,$xb1
+ vmrgew $xt3,$xb2,$xb3
+ vmrgow $xb0,$xb0,$xb1
+ vmrgow $xb2,$xb2,$xb3
+
+ vadduwm $xd0,$xd0,$CTR0
+
+ vpermdi $xa1,$xa0,$xa2,0b00
+ vpermdi $xa3,$xa0,$xa2,0b11
+ vpermdi $xa0,$xt0,$xt1,0b00
+ vpermdi $xa2,$xt0,$xt1,0b11
+ vpermdi $xb1,$xb0,$xb2,0b00
+ vpermdi $xb3,$xb0,$xb2,0b11
+ vpermdi $xb0,$xt2,$xt3,0b00
+ vpermdi $xb2,$xt2,$xt3,0b11
+
+ vmrgew $xt0,$xc0,$xc1
+ vmrgew $xt1,$xc2,$xc3
+ vmrgow $xc0,$xc0,$xc1
+ vmrgow $xc2,$xc2,$xc3
+ vmrgew $xt2,$xd0,$xd1
+ vmrgew $xt3,$xd2,$xd3
+ vmrgow $xd0,$xd0,$xd1
+ vmrgow $xd2,$xd2,$xd3
+
+ vpermdi $xc1,$xc0,$xc2,0b00
+ vpermdi $xc3,$xc0,$xc2,0b11
+ vpermdi $xc0,$xt0,$xt1,0b00
+ vpermdi $xc2,$xt0,$xt1,0b11
+ vpermdi $xd1,$xd0,$xd2,0b00
+ vpermdi $xd3,$xd0,$xd2,0b11
+ vpermdi $xd0,$xt2,$xt3,0b00
+ vpermdi $xd2,$xt2,$xt3,0b11
+
+ vspltisw $xt0,8
+ vadduwm $CTR0,$CTR0,$xt0 # next counter value
+ vxxlor $xv4 ,$CTR0,$CTR0 #CTR+4-> 5
+
+ vadduwm $xa0,$xa0, at K[0]
+ vadduwm $xb0,$xb0, at K[1]
+ vadduwm $xc0,$xc0, at K[2]
+ vadduwm $xd0,$xd0, at K[3]
+
+ be?vperm $xa0,$xa0,$xa0,$beperm
+ be?vperm $xb0,$xb0,$xb0,$beperm
+ be?vperm $xc0,$xc0,$xc0,$beperm
+ be?vperm $xd0,$xd0,$xd0,$beperm
+
+ ${UCMP}i $len,0x40
+ blt Ltail_vsx_8x
+
+ lvx_4w $xt0,$x00,$inp
+ lvx_4w $xt1,$x10,$inp
+ lvx_4w $xt2,$x20,$inp
+ lvx_4w $xt3,$x30,$inp
+
+ vxor $xt0,$xt0,$xa0
+ vxor $xt1,$xt1,$xb0
+ vxor $xt2,$xt2,$xc0
+ vxor $xt3,$xt3,$xd0
+
+ stvx_4w $xt0,$x00,$out
+ stvx_4w $xt1,$x10,$out
+ addi $inp,$inp,0x40
+ stvx_4w $xt2,$x20,$out
+ subi $len,$len,0x40
+ stvx_4w $xt3,$x30,$out
+ addi $out,$out,0x40
+ beq Ldone_vsx_8x
+
+ vadduwm $xa0,$xa1, at K[0]
+ vadduwm $xb0,$xb1, at K[1]
+ vadduwm $xc0,$xc1, at K[2]
+ vadduwm $xd0,$xd1, at K[3]
+
+ be?vperm $xa0,$xa0,$xa0,$beperm
+ be?vperm $xb0,$xb0,$xb0,$beperm
+ be?vperm $xc0,$xc0,$xc0,$beperm
+ be?vperm $xd0,$xd0,$xd0,$beperm
+
+ ${UCMP}i $len,0x40
+ blt Ltail_vsx_8x
+
+ lvx_4w $xt0,$x00,$inp
+ lvx_4w $xt1,$x10,$inp
+ lvx_4w $xt2,$x20,$inp
+ lvx_4w $xt3,$x30,$inp
+
+ vxor $xt0,$xt0,$xa0
+ vxor $xt1,$xt1,$xb0
+ vxor $xt2,$xt2,$xc0
+ vxor $xt3,$xt3,$xd0
+
+ stvx_4w $xt0,$x00,$out
+ stvx_4w $xt1,$x10,$out
+ addi $inp,$inp,0x40
+ stvx_4w $xt2,$x20,$out
+ subi $len,$len,0x40
+ stvx_4w $xt3,$x30,$out
+ addi $out,$out,0x40
+ beq Ldone_vsx_8x
+
+ vadduwm $xa0,$xa2, at K[0]
+ vadduwm $xb0,$xb2, at K[1]
+ vadduwm $xc0,$xc2, at K[2]
+ vadduwm $xd0,$xd2, at K[3]
+
+ be?vperm $xa0,$xa0,$xa0,$beperm
+ be?vperm $xb0,$xb0,$xb0,$beperm
+ be?vperm $xc0,$xc0,$xc0,$beperm
+ be?vperm $xd0,$xd0,$xd0,$beperm
+
+ ${UCMP}i $len,0x40
+ blt Ltail_vsx_8x
+
+ lvx_4w $xt0,$x00,$inp
+ lvx_4w $xt1,$x10,$inp
+ lvx_4w $xt2,$x20,$inp
+ lvx_4w $xt3,$x30,$inp
+
+ vxor $xt0,$xt0,$xa0
+ vxor $xt1,$xt1,$xb0
+ vxor $xt2,$xt2,$xc0
+ vxor $xt3,$xt3,$xd0
+
+ stvx_4w $xt0,$x00,$out
+ stvx_4w $xt1,$x10,$out
+ addi $inp,$inp,0x40
+ stvx_4w $xt2,$x20,$out
+ subi $len,$len,0x40
+ stvx_4w $xt3,$x30,$out
+ addi $out,$out,0x40
+ beq Ldone_vsx_8x
+
+ vadduwm $xa0,$xa3, at K[0]
+ vadduwm $xb0,$xb3, at K[1]
+ vadduwm $xc0,$xc3, at K[2]
+ vadduwm $xd0,$xd3, at K[3]
+
+ be?vperm $xa0,$xa0,$xa0,$beperm
+ be?vperm $xb0,$xb0,$xb0,$beperm
+ be?vperm $xc0,$xc0,$xc0,$beperm
+ be?vperm $xd0,$xd0,$xd0,$beperm
+
+ ${UCMP}i $len,0x40
+ blt Ltail_vsx_8x
+
+ lvx_4w $xt0,$x00,$inp
+ lvx_4w $xt1,$x10,$inp
+ lvx_4w $xt2,$x20,$inp
+ lvx_4w $xt3,$x30,$inp
+
+ vxor $xt0,$xt0,$xa0
+ vxor $xt1,$xt1,$xb0
+ vxor $xt2,$xt2,$xc0
+ vxor $xt3,$xt3,$xd0
+
+ stvx_4w $xt0,$x00,$out
+ stvx_4w $xt1,$x10,$out
+ addi $inp,$inp,0x40
+ stvx_4w $xt2,$x20,$out
+ subi $len,$len,0x40
+ stvx_4w $xt3,$x30,$out
+ addi $out,$out,0x40
+ beq Ldone_vsx_8x
+
+#blk4-7: 24:31 remain the same as we can use the same logic above . Reg a4-b7 remain same.Load c4,d7--> position 8-15.we can reuse vr24-31.
+#VR0-3 : are used to load temp value, vr4 --> as xr0 instead of xt0.
+
+ vxxlorc $CTR1 ,$xv5,$xv5
+
+ vxxlorc $xcn4 ,$xv18,$xv18
+ vxxlorc $xcn5 ,$xv19,$xv19
+ vxxlorc $xcn6 ,$xv20,$xv20
+ vxxlorc $xcn7 ,$xv21,$xv21
+
+ vxxlorc $xdn4 ,$xv13,$xv13
+ vxxlorc $xdn5 ,$xv14,$xv14
+ vxxlorc $xdn6 ,$xv15,$xv15
+ vxxlorc $xdn7 ,$xv16,$xv16
+ vadduwm $xdn4,$xdn4,$CTR1
+
+ vxxlorc $xb6 ,$xv6,$xv6
+ vxxlorc $xb7 ,$xv7,$xv7
+#use xa1->xr0, as xt0...in the block 4-7
+
+ vmrgew $xr0,$xa4,$xa5 # transpose data
+ vmrgew $xt1,$xa6,$xa7
+ vmrgow $xa4,$xa4,$xa5
+ vmrgow $xa6,$xa6,$xa7
+ vmrgew $xt2,$xb4,$xb5
+ vmrgew $xt3,$xb6,$xb7
+ vmrgow $xb4,$xb4,$xb5
+ vmrgow $xb6,$xb6,$xb7
+
+ vpermdi $xa5,$xa4,$xa6,0b00
+ vpermdi $xa7,$xa4,$xa6,0b11
+ vpermdi $xa4,$xr0,$xt1,0b00
+ vpermdi $xa6,$xr0,$xt1,0b11
+ vpermdi $xb5,$xb4,$xb6,0b00
+ vpermdi $xb7,$xb4,$xb6,0b11
+ vpermdi $xb4,$xt2,$xt3,0b00
+ vpermdi $xb6,$xt2,$xt3,0b11
+
+ vmrgew $xr0,$xcn4,$xcn5
+ vmrgew $xt1,$xcn6,$xcn7
+ vmrgow $xcn4,$xcn4,$xcn5
+ vmrgow $xcn6,$xcn6,$xcn7
+ vmrgew $xt2,$xdn4,$xdn5
+ vmrgew $xt3,$xdn6,$xdn7
+ vmrgow $xdn4,$xdn4,$xdn5
+ vmrgow $xdn6,$xdn6,$xdn7
+
+ vpermdi $xcn5,$xcn4,$xcn6,0b00
+ vpermdi $xcn7,$xcn4,$xcn6,0b11
+ vpermdi $xcn4,$xr0,$xt1,0b00
+ vpermdi $xcn6,$xr0,$xt1,0b11
+ vpermdi $xdn5,$xdn4,$xdn6,0b00
+ vpermdi $xdn7,$xdn4,$xdn6,0b11
+ vpermdi $xdn4,$xt2,$xt3,0b00
+ vpermdi $xdn6,$xt2,$xt3,0b11
+
+ vspltisw $xr0,8
+ vadduwm $CTR1,$CTR1,$xr0 # next counter value
+ vxxlor $xv5 ,$CTR1,$CTR1 #CTR+4-> 5
+
+ vadduwm $xan0,$xa4, at K[0]
+ vadduwm $xbn0,$xb4, at K[1]
+ vadduwm $xcn0,$xcn4, at K[2]
+ vadduwm $xdn0,$xdn4, at K[3]
+
+ be?vperm $xan0,$xa4,$xa4,$beperm
+ be?vperm $xbn0,$xb4,$xb4,$beperm
+ be?vperm $xcn0,$xcn4,$xcn4,$beperm
+ be?vperm $xdn0,$xdn4,$xdn4,$beperm
+
+ ${UCMP}i $len,0x40
+ blt Ltail_vsx_8x_1
+
+ lvx_4w $xr0,$x00,$inp
+ lvx_4w $xt1,$x10,$inp
+ lvx_4w $xt2,$x20,$inp
+ lvx_4w $xt3,$x30,$inp
+
+ vxor $xr0,$xr0,$xan0
+ vxor $xt1,$xt1,$xbn0
+ vxor $xt2,$xt2,$xcn0
+ vxor $xt3,$xt3,$xdn0
+
+ stvx_4w $xr0,$x00,$out
+ stvx_4w $xt1,$x10,$out
+ addi $inp,$inp,0x40
+ stvx_4w $xt2,$x20,$out
+ subi $len,$len,0x40
+ stvx_4w $xt3,$x30,$out
+ addi $out,$out,0x40
+ beq Ldone_vsx_8x
+
+ vadduwm $xan0,$xa5, at K[0]
+ vadduwm $xbn0,$xb5, at K[1]
+ vadduwm $xcn0,$xcn5, at K[2]
+ vadduwm $xdn0,$xdn5, at K[3]
+
+ be?vperm $xan0,$xan0,$xan0,$beperm
+ be?vperm $xbn0,$xbn0,$xbn0,$beperm
+ be?vperm $xcn0,$xcn0,$xcn0,$beperm
+ be?vperm $xdn0,$xdn0,$xdn0,$beperm
+
+ ${UCMP}i $len,0x40
+ blt Ltail_vsx_8x_1
+
+ lvx_4w $xr0,$x00,$inp
+ lvx_4w $xt1,$x10,$inp
+ lvx_4w $xt2,$x20,$inp
+ lvx_4w $xt3,$x30,$inp
+
+ vxor $xr0,$xr0,$xan0
+ vxor $xt1,$xt1,$xbn0
+ vxor $xt2,$xt2,$xcn0
+ vxor $xt3,$xt3,$xdn0
+
+ stvx_4w $xr0,$x00,$out
+ stvx_4w $xt1,$x10,$out
+ addi $inp,$inp,0x40
+ stvx_4w $xt2,$x20,$out
+ subi $len,$len,0x40
+ stvx_4w $xt3,$x30,$out
+ addi $out,$out,0x40
+ beq Ldone_vsx_8x
+
+ vadduwm $xan0,$xa6, at K[0]
+ vadduwm $xbn0,$xb6, at K[1]
+ vadduwm $xcn0,$xcn6, at K[2]
+ vadduwm $xdn0,$xdn6, at K[3]
+
+ be?vperm $xan0,$xan0,$xan0,$beperm
+ be?vperm $xbn0,$xbn0,$xbn0,$beperm
+ be?vperm $xcn0,$xcn0,$xcn0,$beperm
+ be?vperm $xdn0,$xdn0,$xdn0,$beperm
+
+ ${UCMP}i $len,0x40
+ blt Ltail_vsx_8x_1
+
+ lvx_4w $xr0,$x00,$inp
+ lvx_4w $xt1,$x10,$inp
+ lvx_4w $xt2,$x20,$inp
+ lvx_4w $xt3,$x30,$inp
+
+ vxor $xr0,$xr0,$xan0
+ vxor $xt1,$xt1,$xbn0
+ vxor $xt2,$xt2,$xcn0
+ vxor $xt3,$xt3,$xdn0
+
+ stvx_4w $xr0,$x00,$out
+ stvx_4w $xt1,$x10,$out
+ addi $inp,$inp,0x40
+ stvx_4w $xt2,$x20,$out
+ subi $len,$len,0x40
+ stvx_4w $xt3,$x30,$out
+ addi $out,$out,0x40
+ beq Ldone_vsx_8x
+
+ vadduwm $xan0,$xa7, at K[0]
+ vadduwm $xbn0,$xb7, at K[1]
+ vadduwm $xcn0,$xcn7, at K[2]
+ vadduwm $xdn0,$xdn7, at K[3]
+
+ be?vperm $xan0,$xan0,$xan0,$beperm
+ be?vperm $xbn0,$xbn0,$xbn0,$beperm
+ be?vperm $xcn0,$xcn0,$xcn0,$beperm
+ be?vperm $xdn0,$xdn0,$xdn0,$beperm
+
+ ${UCMP}i $len,0x40
+ blt Ltail_vsx_8x_1
+
+ lvx_4w $xr0,$x00,$inp
+ lvx_4w $xt1,$x10,$inp
+ lvx_4w $xt2,$x20,$inp
+ lvx_4w $xt3,$x30,$inp
+
+ vxor $xr0,$xr0,$xan0
+ vxor $xt1,$xt1,$xbn0
+ vxor $xt2,$xt2,$xcn0
+ vxor $xt3,$xt3,$xdn0
+
+ stvx_4w $xr0,$x00,$out
+ stvx_4w $xt1,$x10,$out
+ addi $inp,$inp,0x40
+ stvx_4w $xt2,$x20,$out
+ subi $len,$len,0x40
+ stvx_4w $xt3,$x30,$out
+ addi $out,$out,0x40
+ beq Ldone_vsx_8x
+
+ mtctr r0
+ bne Loop_outer_vsx_8x
+
+Ldone_vsx_8x:
+ lwz r12,`$FRAME-4`($sp) # pull vrsave
+ li r10,`15+$LOCALS+64`
+ li r11,`31+$LOCALS+64`
+ $POP r0, `$FRAME+$LRSAVE`($sp)
+ mtspr 256,r12 # restore vrsave
+ 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
+ mtlr r0
+ addi $sp,$sp,$FRAME
+ blr
+
+.align 4
+Ltail_vsx_8x:
+ addi r11,$sp,$LOCALS
+ mtctr $len
+ stvx_4w $xa0,$x00,r11 # offload block to stack
+ stvx_4w $xb0,$x10,r11
+ stvx_4w $xc0,$x20,r11
+ stvx_4w $xd0,$x30,r11
+ subi r12,r11,1 # prepare for *++ptr
+ subi $inp,$inp,1
+ subi $out,$out,1
+ bl Loop_tail_vsx_8x
+Ltail_vsx_8x_1:
+ addi r11,$sp,$LOCALS
+ mtctr $len
+ stvx_4w $xan0,$x00,r11 # offload block to stack
+ stvx_4w $xbn0,$x10,r11
+ stvx_4w $xcn0,$x20,r11
+ stvx_4w $xdn0,$x30,r11
+ subi r12,r11,1 # prepare for *++ptr
+ subi $inp,$inp,1
+ subi $out,$out,1
+ bl Loop_tail_vsx_8x
+
+Loop_tail_vsx_8x:
+ lbzu r6,1(r12)
+ lbzu r7,1($inp)
+ xor r6,r6,r7
+ stbu r6,1($out)
+ bdnz Loop_tail_vsx_8x
+
+ stvx_4w $K[0],$x00,r11 # wipe copy of the block
+ stvx_4w $K[0],$x10,r11
+ stvx_4w $K[0],$x20,r11
+ stvx_4w $K[0],$x30,r11
+
+ b Ldone_vsx_8x
+ .long 0
+ .byte 0,12,0x04,1,0x80,0,5,0
+ .long 0
+.size .ChaCha20_ctr32_vsx_8x,.-.ChaCha20_ctr32_vsx_8x
+___
+}}}
+
+
+$code.=<<___;
+.align 5
+Lconsts:
+ mflr r0
+ bcl 20,31,\$+4
+ mflr r12 #vvvvv "distance between . and Lsigma
+ addi r12,r12,`64-8`
+ mtlr r0
+ blr
+ .long 0
+ .byte 0,12,0x14,0,0,0,0,0
+ .space `64-9*4`
+Lsigma:
+ .long 0x61707865,0x3320646e,0x79622d32,0x6b206574
+ .long 1,0,0,0
+ .long 2,0,0,0
+ .long 3,0,0,0
+ .long 4,0,0,0
+___
+$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.=<<___;
+ .long 0x61707865,0x61707865,0x61707865,0x61707865
+ .long 0x3320646e,0x3320646e,0x3320646e,0x3320646e
+ .long 0x79622d32,0x79622d32,0x79622d32,0x79622d32
+ .long 0x6b206574,0x6b206574,0x6b206574,0x6b206574
+ .long 0,1,2,3
+ .long 0x03020100,0x07060504,0x0b0a0908,0x0f0e0d0c
+.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/vrldoi(\s+v[0-9]+,\s*)(v[0-9]+,)\s*([0-9]+)/vsldoi$1$2$2 16-$3/;
+ } else { # little-endian
+ s/le\?// or
+ s/be\?/#be#/ or
+ s/\?([a-z]+)/$1/ or
+ s/vrldoi(\s+v[0-9]+,\s*)(v[0-9]+,)\s*([0-9]+)/vsldoi$1$2$2 $3/;
+ }
+
+ print $_,"\n";
+}
+
+close STDOUT or die "error closing STDOUT: $!";
diff --git a/crypto/chacha/build.info b/crypto/chacha/build.info
index c12cb9c201..2a819b2e7a 100644
--- a/crypto/chacha/build.info
+++ b/crypto/chacha/build.info
@@ -12,7 +12,7 @@ IF[{- !$disabled{asm} -}]
$CHACHAASM_armv4=chacha-armv4.S
$CHACHAASM_aarch64=chacha-armv8.S
- $CHACHAASM_ppc32=chacha_ppc.c chacha-ppc.s
+ $CHACHAASM_ppc32=chacha_ppc.c chacha-ppc.s chachap10-ppc.s
$CHACHAASM_ppc64=$CHACHAASM_ppc32
$CHACHAASM_c64xplus=chacha-c64xplus.s
@@ -29,6 +29,7 @@ SOURCE[../../libcrypto]=$CHACHAASM
GENERATE[chacha-x86.s]=asm/chacha-x86.pl
GENERATE[chacha-x86_64.s]=asm/chacha-x86_64.pl
GENERATE[chacha-ppc.s]=asm/chacha-ppc.pl
+GENERATE[chachap10-ppc.s]=asm/chachap10-ppc.pl
GENERATE[chacha-armv4.S]=asm/chacha-armv4.pl
INCLUDE[chacha-armv4.o]=..
GENERATE[chacha-armv8.S]=asm/chacha-armv8.pl
diff --git a/crypto/chacha/chacha_ppc.c b/crypto/chacha/chacha_ppc.c
index 5319040cc1..f99cca8807 100644
--- a/crypto/chacha/chacha_ppc.c
+++ b/crypto/chacha/chacha_ppc.c
@@ -23,13 +23,18 @@ void ChaCha20_ctr32_vmx(unsigned char *out, const unsigned char *inp,
void ChaCha20_ctr32_vsx(unsigned char *out, const unsigned char *inp,
size_t len, const unsigned int key[8],
const unsigned int counter[4]);
+void ChaCha20_ctr32_vsx_p10(unsigned char *out, const unsigned char *inp,
+ size_t len, const unsigned int key[8],
+ const unsigned int counter[4]);
void ChaCha20_ctr32(unsigned char *out, const unsigned char *inp,
size_t len, const unsigned int key[8],
const unsigned int counter[4])
{
- OPENSSL_ppccap_P & PPC_CRYPTO207
- ? ChaCha20_ctr32_vsx(out, inp, len, key, counter)
- : OPENSSL_ppccap_P & PPC_ALTIVEC
- ? ChaCha20_ctr32_vmx(out, inp, len, key, counter)
- : ChaCha20_ctr32_int(out, inp, len, key, counter);
+ OPENSSL_ppccap_P & PPC_BRD31
+ ? ChaCha20_ctr32_vsx_p10(out, inp, len, key, counter)
+ :OPENSSL_ppccap_P & PPC_CRYPTO207
+ ? ChaCha20_ctr32_vsx(out, inp, len, key, counter)
+ : OPENSSL_ppccap_P & PPC_ALTIVEC
+ ? ChaCha20_ctr32_vmx(out, inp, len, key, counter)
+ : ChaCha20_ctr32_int(out, inp, len, key, counter);
}
diff --git a/crypto/perlasm/ppc-xlate.pl b/crypto/perlasm/ppc-xlate.pl
index 2ee444045f..45903407df 100755
--- a/crypto/perlasm/ppc-xlate.pl
+++ b/crypto/perlasm/ppc-xlate.pl
@@ -293,6 +293,14 @@ my $vpermdi = sub { # xxpermdi
$dm = oct($dm) if ($dm =~ /^0/);
" .long ".sprintf "0x%X",(60<<26)|($vrt<<21)|($vra<<16)|($vrb<<11)|($dm<<8)|(10<<3)|7;
};
+my $vxxlor = sub { # xxlor
+ my ($f, $vrt, $vra, $vrb) = @_;
+ " .long ".sprintf "0x%X",(60<<26)|($vrt<<21)|($vra<<16)|($vrb<<11)|(146<<3)|6;
+};
+my $vxxlorc = sub { # xxlor
+ my ($f, $vrt, $vra, $vrb) = @_;
+ " .long ".sprintf "0x%X",(60<<26)|($vrt<<21)|($vra<<16)|($vrb<<11)|(146<<3)|1;
+};
# PowerISA 2.07 stuff
sub vcrypto_op {
@@ -377,6 +385,15 @@ my $addex = sub {
};
my $vmsumudm = sub { vfour_vsr(@_, 35); };
+# PowerISA 3.1 stuff
+my $brd = sub {
+ my ($f, $ra, $rs) = @_;
+ " .long ".sprintf "0x%X",(31<<26)|($rs<<21)|($ra<<16)|(187<<1);
+};
+my $vsrq = sub { vcrypto_op(@_, 517); };
+
+
+
while($line=<>) {
$line =~ s|[#!;].*$||; # get rid of asm-style comments...
diff --git a/crypto/ppccap.c b/crypto/ppccap.c
index da371a5345..664627c1af 100644
--- a/crypto/ppccap.c
+++ b/crypto/ppccap.c
@@ -45,6 +45,7 @@ void OPENSSL_ppc64_probe(void);
void OPENSSL_altivec_probe(void);
void OPENSSL_crypto207_probe(void);
void OPENSSL_madd300_probe(void);
+void OPENSSL_brd31_probe(void);
long OPENSSL_rdtsc_mftb(void);
long OPENSSL_rdtsc_mfspr268(void);
@@ -131,6 +132,7 @@ static unsigned long getauxval(unsigned long key)
#endif
#define HWCAP_VEC_CRYPTO (1U << 25)
#define HWCAP_ARCH_3_00 (1U << 23)
+#define HWCAP_ARCH_3_1 (1U << 18)
# if defined(__GNUC__) && __GNUC__>=2
__attribute__ ((constructor))
@@ -191,6 +193,9 @@ void OPENSSL_cpuid_setup(void)
if (__power_set(0xffffffffU<<17)) /* POWER9 and later */
OPENSSL_ppccap_P |= PPC_MADD300;
+ if (__power_set(0xffffffffU<<18)) /* POWER10 and later */
+ OPENSSL_ppccap_P |= PPC_BRD31;
+
return;
# endif
#endif
@@ -246,6 +251,10 @@ void OPENSSL_cpuid_setup(void)
if (hwcap2 & HWCAP_ARCH_3_00) {
OPENSSL_ppccap_P |= PPC_MADD300;
}
+
+ if (hwcap2 & HWCAP_ARCH_3_1) {
+ OPENSSL_ppccap_P |= PPC_BRD31;
+ }
}
#endif
diff --git a/crypto/ppccpuid.pl b/crypto/ppccpuid.pl
index c6555df5d8..706164adba 100755
--- a/crypto/ppccpuid.pl
+++ b/crypto/ppccpuid.pl
@@ -81,6 +81,17 @@ $code=<<___;
.long 0
.byte 0,12,0x14,0,0,0,0,0
+.globl .OPENSSL_brd31_probe
+.align 4
+.OPENSSL_brd31_probe:
+ xor r0,r0,r0
+ brd r3,r0
+ blr
+ .long 0
+ .byte 0,12,0x14,0,0,0,0,0
+.size .OPENSSL_brd31_probe,.-.OPENSSL_brd31_probe
+
+
.globl .OPENSSL_wipe_cpu
.align 4
.OPENSSL_wipe_cpu:
diff --git a/include/crypto/ppc_arch.h b/include/crypto/ppc_arch.h
index 3b3ce4bff5..fcc846c410 100644
--- a/include/crypto/ppc_arch.h
+++ b/include/crypto/ppc_arch.h
@@ -24,5 +24,6 @@ extern unsigned int OPENSSL_ppccap_P;
# define PPC_MADD300 (1<<4)
# define PPC_MFTB (1<<5)
# define PPC_MFSPR268 (1<<6)
+# define PPC_BRD31 (1<<7)
#endif
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