mirror of
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f87b4c4ea6
It uses AVX512_IFMA + AVX512_VL (with 256-bit wide registers) ISA to keep lower power license. Reviewed-by: Matt Caswell <matt@openssl.org> Reviewed-by: Paul Dale <pauli@openssl.org> (Merged from https://github.com/openssl/openssl/pull/14908)
875 lines
27 KiB
Perl
875 lines
27 KiB
Perl
# Copyright 2021 The OpenSSL Project Authors. All Rights Reserved.
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# Copyright (c) 2021, Intel Corporation. All Rights Reserved.
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#
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# Licensed under the Apache License 2.0 (the "License"). You may not use
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# this file except in compliance with the License. You can obtain a copy
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# in the file LICENSE in the source distribution or at
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# https://www.openssl.org/source/license.html
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#
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#
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# Originally written by Sergey Kirillov and Andrey Matyukov
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# Intel Corporation
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#
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# March 2021
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#
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# Initial release.
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#
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# Implementation utilizes 256-bit (ymm) registers to avoid frequency scaling issues.
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#
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# IceLake-Client @ 1.3GHz
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# |---------+-----------------------+---------------+-------------|
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# | | OpenSSL 3.0.0-alpha15 | this | Unit |
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# |---------+-----------------------+---------------+-------------|
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# | rsa3072 | 6 397 637 | 2 866 593 | cycles/sign |
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# | | 203.2 | 453.5 / +123% | sign/s |
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# |---------+-----------------------+---------------+-------------|
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#
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# $output is the last argument if it looks like a file (it has an extension)
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# $flavour is the first argument if it doesn't look like a file
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$output = $#ARGV >= 0 && $ARGV[$#ARGV] =~ m|\.\w+$| ? pop : undef;
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$flavour = $#ARGV >= 0 && $ARGV[0] !~ m|\.| ? shift : undef;
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$win64=0; $win64=1 if ($flavour =~ /[nm]asm|mingw64/ || $output =~ /\.asm$/);
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$avx512ifma=0;
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$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
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( $xlate="${dir}x86_64-xlate.pl" and -f $xlate ) or
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( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or
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die "can't locate x86_64-xlate.pl";
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if (`$ENV{CC} -Wa,-v -c -o /dev/null -x assembler /dev/null 2>&1`
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=~ /GNU assembler version ([2-9]\.[0-9]+)/) {
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$avx512ifma = ($1>=2.26);
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}
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if (!$avx512 && $win64 && ($flavour =~ /nasm/ || $ENV{ASM} =~ /nasm/) &&
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`nasm -v 2>&1` =~ /NASM version ([2-9]\.[0-9]+)(?:\.([0-9]+))?/) {
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$avx512ifma = ($1==2.11 && $2>=8) + ($1>=2.12);
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}
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if (!$avx512 && `$ENV{CC} -v 2>&1` =~ /((?:clang|LLVM) version|.*based on LLVM) ([0-9]+\.[0-9]+)/) {
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$avx512ifma = ($2>=7.0);
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}
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open OUT,"| \"$^X\" \"$xlate\" $flavour \"$output\""
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or die "can't call $xlate: $!";
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*STDOUT=*OUT;
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if ($avx512ifma>0) {{{
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@_6_args_universal_ABI = ("%rdi","%rsi","%rdx","%rcx","%r8","%r9");
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###############################################################################
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# Almost Montgomery Multiplication (AMM) for 30-digit number in radix 2^52.
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#
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# AMM is defined as presented in the paper [1].
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#
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# The input and output are presented in 2^52 radix domain, i.e.
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# |res|, |a|, |b|, |m| are arrays of 32 64-bit qwords with 12 high bits zeroed
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#
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# NOTE: the function uses zero-padded data - 2 high QWs is a padding.
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#
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# |k0| is a Montgomery coefficient, which is here k0 = -1/m mod 2^64
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#
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# NB: the AMM implementation does not perform "conditional" subtraction step
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# specified in the original algorithm as according to the Lemma 1 from the paper
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# [2], the result will be always < 2*m and can be used as a direct input to
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# the next AMM iteration. This post-condition is true, provided the correct
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# parameter |s| (notion of the Lemma 1 from [2]) is choosen, i.e. s >= n + 2 * k,
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# which matches our case: 1560 > 1536 + 2 * 1.
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#
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# [1] Gueron, S. Efficient software implementations of modular exponentiation.
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# DOI: 10.1007/s13389-012-0031-5
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# [2] Gueron, S. Enhanced Montgomery Multiplication.
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# DOI: 10.1007/3-540-36400-5_5
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#
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# void ossl_rsaz_amm52x30_x1_ifma256(BN_ULONG *res,
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# const BN_ULONG *a,
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# const BN_ULONG *b,
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# const BN_ULONG *m,
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# BN_ULONG k0);
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###############################################################################
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{
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# input parameters ("%rdi","%rsi","%rdx","%rcx","%r8")
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my ($res,$a,$b,$m,$k0) = @_6_args_universal_ABI;
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my $mask52 = "%rax";
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my $acc0_0 = "%r9";
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my $acc0_0_low = "%r9d";
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my $acc0_1 = "%r15";
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my $acc0_1_low = "%r15d";
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my $b_ptr = "%r11";
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my $iter = "%ebx";
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my $zero = "%ymm0";
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my $Bi = "%ymm1";
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my $Yi = "%ymm2";
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my ($R0_0,$R0_0h,$R1_0,$R1_0h,$R2_0,$R2_0h,$R3_0,$R3_0h) = map("%ymm$_",(3..10));
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my ($R0_1,$R0_1h,$R1_1,$R1_1h,$R2_1,$R2_1h,$R3_1,$R3_1h) = map("%ymm$_",(11..18));
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# Registers mapping for normalization
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my ($T0,$T0h,$T1,$T1h,$T2,$T2h,$T3,$T3h) = ("$zero", "$Bi", "$Yi", map("%ymm$_", (19..23)));
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sub amm52x30_x1() {
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# _data_offset - offset in the |a| or |m| arrays pointing to the beginning
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# of data for corresponding AMM operation;
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# _b_offset - offset in the |b| array pointing to the next qword digit;
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my ($_data_offset,$_b_offset,$_acc,$_R0,$_R0h,$_R1,$_R1h,$_R2,$_R2h,$_R3,$_R3h,$_k0) = @_;
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my $_R0_xmm = $_R0;
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$_R0_xmm =~ s/%y/%x/;
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$code.=<<___;
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movq $_b_offset($b_ptr), %r13 # b[i]
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vpbroadcastq %r13, $Bi # broadcast b[i]
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movq $_data_offset($a), %rdx
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mulx %r13, %r13, %r12 # a[0]*b[i] = (t0,t2)
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addq %r13, $_acc # acc += t0
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movq %r12, %r10
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adcq \$0, %r10 # t2 += CF
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movq $_k0, %r13
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imulq $_acc, %r13 # acc * k0
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andq $mask52, %r13 # yi = (acc * k0) & mask52
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vpbroadcastq %r13, $Yi # broadcast y[i]
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movq $_data_offset($m), %rdx
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mulx %r13, %r13, %r12 # yi * m[0] = (t0,t1)
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addq %r13, $_acc # acc += t0
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adcq %r12, %r10 # t2 += (t1 + CF)
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shrq \$52, $_acc
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salq \$12, %r10
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or %r10, $_acc # acc = ((acc >> 52) | (t2 << 12))
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vpmadd52luq `$_data_offset+64*0`($a), $Bi, $_R0
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vpmadd52luq `$_data_offset+64*0+32`($a), $Bi, $_R0h
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vpmadd52luq `$_data_offset+64*1`($a), $Bi, $_R1
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vpmadd52luq `$_data_offset+64*1+32`($a), $Bi, $_R1h
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vpmadd52luq `$_data_offset+64*2`($a), $Bi, $_R2
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vpmadd52luq `$_data_offset+64*2+32`($a), $Bi, $_R2h
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vpmadd52luq `$_data_offset+64*3`($a), $Bi, $_R3
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vpmadd52luq `$_data_offset+64*3+32`($a), $Bi, $_R3h
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vpmadd52luq `$_data_offset+64*0`($m), $Yi, $_R0
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vpmadd52luq `$_data_offset+64*0+32`($m), $Yi, $_R0h
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vpmadd52luq `$_data_offset+64*1`($m), $Yi, $_R1
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vpmadd52luq `$_data_offset+64*1+32`($m), $Yi, $_R1h
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vpmadd52luq `$_data_offset+64*2`($m), $Yi, $_R2
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vpmadd52luq `$_data_offset+64*2+32`($m), $Yi, $_R2h
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vpmadd52luq `$_data_offset+64*3`($m), $Yi, $_R3
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vpmadd52luq `$_data_offset+64*3+32`($m), $Yi, $_R3h
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# Shift accumulators right by 1 qword, zero extending the highest one
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valignq \$1, $_R0, $_R0h, $_R0
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valignq \$1, $_R0h, $_R1, $_R0h
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valignq \$1, $_R1, $_R1h, $_R1
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valignq \$1, $_R1h, $_R2, $_R1h
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valignq \$1, $_R2, $_R2h, $_R2
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valignq \$1, $_R2h, $_R3, $_R2h
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valignq \$1, $_R3, $_R3h, $_R3
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valignq \$1, $_R3h, $zero, $_R3h
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vmovq $_R0_xmm, %r13
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addq %r13, $_acc # acc += R0[0]
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vpmadd52huq `$_data_offset+64*0`($a), $Bi, $_R0
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vpmadd52huq `$_data_offset+64*0+32`($a), $Bi, $_R0h
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vpmadd52huq `$_data_offset+64*1`($a), $Bi, $_R1
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vpmadd52huq `$_data_offset+64*1+32`($a), $Bi, $_R1h
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vpmadd52huq `$_data_offset+64*2`($a), $Bi, $_R2
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vpmadd52huq `$_data_offset+64*2+32`($a), $Bi, $_R2h
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vpmadd52huq `$_data_offset+64*3`($a), $Bi, $_R3
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vpmadd52huq `$_data_offset+64*3+32`($a), $Bi, $_R3h
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vpmadd52huq `$_data_offset+64*0`($m), $Yi, $_R0
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vpmadd52huq `$_data_offset+64*0+32`($m), $Yi, $_R0h
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vpmadd52huq `$_data_offset+64*1`($m), $Yi, $_R1
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vpmadd52huq `$_data_offset+64*1+32`($m), $Yi, $_R1h
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vpmadd52huq `$_data_offset+64*2`($m), $Yi, $_R2
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vpmadd52huq `$_data_offset+64*2+32`($m), $Yi, $_R2h
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vpmadd52huq `$_data_offset+64*3`($m), $Yi, $_R3
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vpmadd52huq `$_data_offset+64*3+32`($m), $Yi, $_R3h
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___
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}
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# Normalization routine: handles carry bits and gets bignum qwords to normalized
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# 2^52 representation.
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#
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# Uses %r8-14,%e[abcd]x
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sub amm52x30_x1_norm {
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my ($_acc,$_R0,$_R0h,$_R1,$_R1h,$_R2,$_R2h,$_R3,$_R3h) = @_;
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$code.=<<___;
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# Put accumulator to low qword in R0
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vpbroadcastq $_acc, $T0
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vpblendd \$3, $T0, $_R0, $_R0
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# Extract "carries" (12 high bits) from each QW of the bignum
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# Save them to LSB of QWs in T0..Tn
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vpsrlq \$52, $_R0, $T0
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vpsrlq \$52, $_R0h, $T0h
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vpsrlq \$52, $_R1, $T1
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vpsrlq \$52, $_R1h, $T1h
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vpsrlq \$52, $_R2, $T2
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vpsrlq \$52, $_R2h, $T2h
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vpsrlq \$52, $_R3, $T3
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vpsrlq \$52, $_R3h, $T3h
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# "Shift left" T0..Tn by 1 QW
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valignq \$3, $T3, $T3h, $T3h
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valignq \$3, $T2h, $T3, $T3
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valignq \$3, $T2, $T2h, $T2h
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valignq \$3, $T1h, $T2, $T2
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valignq \$3, $T1, $T1h, $T1h
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valignq \$3, $T0h, $T1, $T1
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valignq \$3, $T0, $T0h, $T0h
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valignq \$3, .Lzeros(%rip), $T0, $T0
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# Drop "carries" from R0..Rn QWs
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vpandq .Lmask52x4(%rip), $_R0, $_R0
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vpandq .Lmask52x4(%rip), $_R0h, $_R0h
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vpandq .Lmask52x4(%rip), $_R1, $_R1
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vpandq .Lmask52x4(%rip), $_R1h, $_R1h
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vpandq .Lmask52x4(%rip), $_R2, $_R2
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vpandq .Lmask52x4(%rip), $_R2h, $_R2h
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vpandq .Lmask52x4(%rip), $_R3, $_R3
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vpandq .Lmask52x4(%rip), $_R3h, $_R3h
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# Sum R0..Rn with corresponding adjusted carries
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vpaddq $T0, $_R0, $_R0
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vpaddq $T0h, $_R0h, $_R0h
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vpaddq $T1, $_R1, $_R1
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vpaddq $T1h, $_R1h, $_R1h
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vpaddq $T2, $_R2, $_R2
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vpaddq $T2h, $_R2h, $_R2h
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vpaddq $T3, $_R3, $_R3
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vpaddq $T3h, $_R3h, $_R3h
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# Now handle carry bits from this addition
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# Get mask of QWs whose 52-bit parts overflow
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vpcmpuq \$6,.Lmask52x4(%rip),${_R0},%k1 # OP=nle (i.e. gt)
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vpcmpuq \$6,.Lmask52x4(%rip),${_R0h},%k2
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kmovb %k1,%r14d
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kmovb %k2,%r13d
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shl \$4,%r13b
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or %r13b,%r14b
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vpcmpuq \$6,.Lmask52x4(%rip),${_R1},%k1
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vpcmpuq \$6,.Lmask52x4(%rip),${_R1h},%k2
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kmovb %k1,%r13d
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kmovb %k2,%r12d
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shl \$4,%r12b
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or %r12b,%r13b
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vpcmpuq \$6,.Lmask52x4(%rip),${_R2},%k1
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vpcmpuq \$6,.Lmask52x4(%rip),${_R2h},%k2
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kmovb %k1,%r12d
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kmovb %k2,%r11d
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shl \$4,%r11b
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or %r11b,%r12b
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vpcmpuq \$6,.Lmask52x4(%rip),${_R3},%k1
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vpcmpuq \$6,.Lmask52x4(%rip),${_R3h},%k2
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kmovb %k1,%r11d
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kmovb %k2,%r10d
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shl \$4,%r10b
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or %r10b,%r11b
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addb %r14b,%r14b
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adcb %r13b,%r13b
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adcb %r12b,%r12b
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adcb %r11b,%r11b
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# Get mask of QWs whose 52-bit parts saturated
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vpcmpuq \$0,.Lmask52x4(%rip),${_R0},%k1 # OP=eq
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vpcmpuq \$0,.Lmask52x4(%rip),${_R0h},%k2
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kmovb %k1,%r9d
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kmovb %k2,%r8d
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shl \$4,%r8b
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or %r8b,%r9b
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vpcmpuq \$0,.Lmask52x4(%rip),${_R1},%k1
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vpcmpuq \$0,.Lmask52x4(%rip),${_R1h},%k2
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kmovb %k1,%r8d
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kmovb %k2,%edx
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shl \$4,%dl
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or %dl,%r8b
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vpcmpuq \$0,.Lmask52x4(%rip),${_R2},%k1
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vpcmpuq \$0,.Lmask52x4(%rip),${_R2h},%k2
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kmovb %k1,%edx
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kmovb %k2,%ecx
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shl \$4,%cl
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or %cl,%dl
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vpcmpuq \$0,.Lmask52x4(%rip),${_R3},%k1
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vpcmpuq \$0,.Lmask52x4(%rip),${_R3h},%k2
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kmovb %k1,%ecx
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kmovb %k2,%ebx
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shl \$4,%bl
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or %bl,%cl
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addb %r9b,%r14b
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adcb %r8b,%r13b
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adcb %dl,%r12b
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adcb %cl,%r11b
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xor %r9b,%r14b
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xor %r8b,%r13b
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xor %dl,%r12b
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xor %cl,%r11b
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kmovb %r14d,%k1
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shr \$4,%r14b
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kmovb %r14d,%k2
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kmovb %r13d,%k3
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shr \$4,%r13b
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kmovb %r13d,%k4
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kmovb %r12d,%k5
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shr \$4,%r12b
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kmovb %r12d,%k6
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kmovb %r11d,%k7
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vpsubq .Lmask52x4(%rip), $_R0, ${_R0}{%k1}
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vpsubq .Lmask52x4(%rip), $_R0h, ${_R0h}{%k2}
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vpsubq .Lmask52x4(%rip), $_R1, ${_R1}{%k3}
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vpsubq .Lmask52x4(%rip), $_R1h, ${_R1h}{%k4}
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vpsubq .Lmask52x4(%rip), $_R2, ${_R2}{%k5}
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vpsubq .Lmask52x4(%rip), $_R2h, ${_R2h}{%k6}
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vpsubq .Lmask52x4(%rip), $_R3, ${_R3}{%k7}
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vpandq .Lmask52x4(%rip), $_R0, $_R0
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vpandq .Lmask52x4(%rip), $_R0h, $_R0h
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vpandq .Lmask52x4(%rip), $_R1, $_R1
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vpandq .Lmask52x4(%rip), $_R1h, $_R1h
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vpandq .Lmask52x4(%rip), $_R2, $_R2
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vpandq .Lmask52x4(%rip), $_R2h, $_R2h
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vpandq .Lmask52x4(%rip), $_R3, $_R3
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shr \$4,%r11b
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kmovb %r11d,%k1
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vpsubq .Lmask52x4(%rip), $_R3h, ${_R3h}{%k1}
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vpandq .Lmask52x4(%rip), $_R3h, $_R3h
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___
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}
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$code.=<<___;
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.text
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.globl ossl_rsaz_amm52x30_x1_ifma256
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.type ossl_rsaz_amm52x30_x1_ifma256,\@function,5
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.align 32
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ossl_rsaz_amm52x30_x1_ifma256:
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.cfi_startproc
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endbranch
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push %rbx
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.cfi_push %rbx
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push %rbp
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.cfi_push %rbp
|
|
push %r12
|
|
.cfi_push %r12
|
|
push %r13
|
|
.cfi_push %r13
|
|
push %r14
|
|
.cfi_push %r14
|
|
push %r15
|
|
.cfi_push %r15
|
|
___
|
|
$code.=<<___ if ($win64);
|
|
lea -168(%rsp),%rsp # 16*10 + (8 bytes to get correct 16-byte SIMD alignment)
|
|
vmovdqa64 %xmm6, `0*16`(%rsp) # save non-volatile registers
|
|
vmovdqa64 %xmm7, `1*16`(%rsp)
|
|
vmovdqa64 %xmm8, `2*16`(%rsp)
|
|
vmovdqa64 %xmm9, `3*16`(%rsp)
|
|
vmovdqa64 %xmm10,`4*16`(%rsp)
|
|
vmovdqa64 %xmm11,`5*16`(%rsp)
|
|
vmovdqa64 %xmm12,`6*16`(%rsp)
|
|
vmovdqa64 %xmm13,`7*16`(%rsp)
|
|
vmovdqa64 %xmm14,`8*16`(%rsp)
|
|
vmovdqa64 %xmm15,`9*16`(%rsp)
|
|
.Lossl_rsaz_amm52x30_x1_ifma256_body:
|
|
___
|
|
$code.=<<___;
|
|
# Zeroing accumulators
|
|
vpxord $zero, $zero, $zero
|
|
vmovdqa64 $zero, $R0_0
|
|
vmovdqa64 $zero, $R0_0h
|
|
vmovdqa64 $zero, $R1_0
|
|
vmovdqa64 $zero, $R1_0h
|
|
vmovdqa64 $zero, $R2_0
|
|
vmovdqa64 $zero, $R2_0h
|
|
vmovdqa64 $zero, $R3_0
|
|
vmovdqa64 $zero, $R3_0h
|
|
|
|
xorl $acc0_0_low, $acc0_0_low
|
|
|
|
movq $b, $b_ptr # backup address of b
|
|
movq \$0xfffffffffffff, $mask52 # 52-bit mask
|
|
|
|
# Loop over 30 digits unrolled by 4
|
|
mov \$7, $iter
|
|
|
|
.align 32
|
|
.Lloop7:
|
|
___
|
|
foreach my $idx (0..3) {
|
|
&amm52x30_x1(0,8*$idx,$acc0_0,$R0_0,$R0_0h,$R1_0,$R1_0h,$R2_0,$R2_0h,$R3_0,$R3_0h,$k0);
|
|
}
|
|
$code.=<<___;
|
|
lea `4*8`($b_ptr), $b_ptr
|
|
dec $iter
|
|
jne .Lloop7
|
|
___
|
|
&amm52x30_x1(0,8*0,$acc0_0,$R0_0,$R0_0h,$R1_0,$R1_0h,$R2_0,$R2_0h,$R3_0,$R3_0h,$k0);
|
|
&amm52x30_x1(0,8*1,$acc0_0,$R0_0,$R0_0h,$R1_0,$R1_0h,$R2_0,$R2_0h,$R3_0,$R3_0h,$k0);
|
|
|
|
&amm52x30_x1_norm($acc0_0,$R0_0,$R0_0h,$R1_0,$R1_0h,$R2_0,$R2_0h,$R3_0,$R3_0h);
|
|
$code.=<<___;
|
|
|
|
vmovdqu64 $R0_0, `0*32`($res)
|
|
vmovdqu64 $R0_0h, `1*32`($res)
|
|
vmovdqu64 $R1_0, `2*32`($res)
|
|
vmovdqu64 $R1_0h, `3*32`($res)
|
|
vmovdqu64 $R2_0, `4*32`($res)
|
|
vmovdqu64 $R2_0h, `5*32`($res)
|
|
vmovdqu64 $R3_0, `6*32`($res)
|
|
vmovdqu64 $R3_0h, `7*32`($res)
|
|
|
|
vzeroupper
|
|
lea (%rsp),%rax
|
|
.cfi_def_cfa_register %rax
|
|
___
|
|
$code.=<<___ if ($win64);
|
|
vmovdqa64 `0*16`(%rax),%xmm6
|
|
vmovdqa64 `1*16`(%rax),%xmm7
|
|
vmovdqa64 `2*16`(%rax),%xmm8
|
|
vmovdqa64 `3*16`(%rax),%xmm9
|
|
vmovdqa64 `4*16`(%rax),%xmm10
|
|
vmovdqa64 `5*16`(%rax),%xmm11
|
|
vmovdqa64 `6*16`(%rax),%xmm12
|
|
vmovdqa64 `7*16`(%rax),%xmm13
|
|
vmovdqa64 `8*16`(%rax),%xmm14
|
|
vmovdqa64 `9*16`(%rax),%xmm15
|
|
lea 168(%rsp),%rax
|
|
___
|
|
$code.=<<___;
|
|
mov 0(%rax),%r15
|
|
.cfi_restore %r15
|
|
mov 8(%rax),%r14
|
|
.cfi_restore %r14
|
|
mov 16(%rax),%r13
|
|
.cfi_restore %r13
|
|
mov 24(%rax),%r12
|
|
.cfi_restore %r12
|
|
mov 32(%rax),%rbp
|
|
.cfi_restore %rbp
|
|
mov 40(%rax),%rbx
|
|
.cfi_restore %rbx
|
|
lea 48(%rax),%rsp # restore rsp
|
|
.cfi_def_cfa %rsp,8
|
|
.Lossl_rsaz_amm52x30_x1_ifma256_epilogue:
|
|
ret
|
|
.cfi_endproc
|
|
.size ossl_rsaz_amm52x30_x1_ifma256, .-ossl_rsaz_amm52x30_x1_ifma256
|
|
___
|
|
|
|
$code.=<<___;
|
|
.data
|
|
.align 32
|
|
.Lmask52x4:
|
|
.quad 0xfffffffffffff
|
|
.quad 0xfffffffffffff
|
|
.quad 0xfffffffffffff
|
|
.quad 0xfffffffffffff
|
|
___
|
|
|
|
###############################################################################
|
|
# Dual Almost Montgomery Multiplication for 30-digit number in radix 2^52
|
|
#
|
|
# See description of ossl_rsaz_amm52x30_x1_ifma256() above for details about Almost
|
|
# Montgomery Multiplication algorithm and function input parameters description.
|
|
#
|
|
# This function does two AMMs for two independent inputs, hence dual.
|
|
#
|
|
# NOTE: the function uses zero-padded data - 2 high QWs is a padding.
|
|
#
|
|
# void ossl_rsaz_amm52x30_x2_ifma256(BN_ULONG out[2][32],
|
|
# const BN_ULONG a[2][32],
|
|
# const BN_ULONG b[2][32],
|
|
# const BN_ULONG m[2][32],
|
|
# const BN_ULONG k0[2]);
|
|
###############################################################################
|
|
|
|
$code.=<<___;
|
|
.text
|
|
|
|
.globl ossl_rsaz_amm52x30_x2_ifma256
|
|
.type ossl_rsaz_amm52x30_x2_ifma256,\@function,5
|
|
.align 32
|
|
ossl_rsaz_amm52x30_x2_ifma256:
|
|
.cfi_startproc
|
|
endbranch
|
|
push %rbx
|
|
.cfi_push %rbx
|
|
push %rbp
|
|
.cfi_push %rbp
|
|
push %r12
|
|
.cfi_push %r12
|
|
push %r13
|
|
.cfi_push %r13
|
|
push %r14
|
|
.cfi_push %r14
|
|
push %r15
|
|
.cfi_push %r15
|
|
___
|
|
$code.=<<___ if ($win64);
|
|
lea -168(%rsp),%rsp
|
|
vmovdqa64 %xmm6, `0*16`(%rsp) # save non-volatile registers
|
|
vmovdqa64 %xmm7, `1*16`(%rsp)
|
|
vmovdqa64 %xmm8, `2*16`(%rsp)
|
|
vmovdqa64 %xmm9, `3*16`(%rsp)
|
|
vmovdqa64 %xmm10,`4*16`(%rsp)
|
|
vmovdqa64 %xmm11,`5*16`(%rsp)
|
|
vmovdqa64 %xmm12,`6*16`(%rsp)
|
|
vmovdqa64 %xmm13,`7*16`(%rsp)
|
|
vmovdqa64 %xmm14,`8*16`(%rsp)
|
|
vmovdqa64 %xmm15,`9*16`(%rsp)
|
|
.Lossl_rsaz_amm52x30_x2_ifma256_body:
|
|
___
|
|
$code.=<<___;
|
|
# Zeroing accumulators
|
|
vpxord $zero, $zero, $zero
|
|
vmovdqa64 $zero, $R0_0
|
|
vmovdqa64 $zero, $R0_0h
|
|
vmovdqa64 $zero, $R1_0
|
|
vmovdqa64 $zero, $R1_0h
|
|
vmovdqa64 $zero, $R2_0
|
|
vmovdqa64 $zero, $R2_0h
|
|
vmovdqa64 $zero, $R3_0
|
|
vmovdqa64 $zero, $R3_0h
|
|
|
|
vmovdqa64 $zero, $R0_1
|
|
vmovdqa64 $zero, $R0_1h
|
|
vmovdqa64 $zero, $R1_1
|
|
vmovdqa64 $zero, $R1_1h
|
|
vmovdqa64 $zero, $R2_1
|
|
vmovdqa64 $zero, $R2_1h
|
|
vmovdqa64 $zero, $R3_1
|
|
vmovdqa64 $zero, $R3_1h
|
|
|
|
|
|
xorl $acc0_0_low, $acc0_0_low
|
|
xorl $acc0_1_low, $acc0_1_low
|
|
|
|
movq $b, $b_ptr # backup address of b
|
|
movq \$0xfffffffffffff, $mask52 # 52-bit mask
|
|
|
|
mov \$30, $iter
|
|
|
|
.align 32
|
|
.Lloop30:
|
|
___
|
|
&amm52x30_x1( 0, 0,$acc0_0,$R0_0,$R0_0h,$R1_0,$R1_0h,$R2_0,$R2_0h,$R3_0,$R3_0h,"($k0)");
|
|
# 32*8 = offset of the next dimension in two-dimension array
|
|
&amm52x30_x1(32*8,32*8,$acc0_1,$R0_1,$R0_1h,$R1_1,$R1_1h,$R2_1,$R2_1h,$R3_1,$R3_1h,"8($k0)");
|
|
$code.=<<___;
|
|
lea 8($b_ptr), $b_ptr
|
|
dec $iter
|
|
jne .Lloop30
|
|
___
|
|
&amm52x30_x1_norm($acc0_0,$R0_0,$R0_0h,$R1_0,$R1_0h,$R2_0,$R2_0h,$R3_0,$R3_0h);
|
|
&amm52x30_x1_norm($acc0_1,$R0_1,$R0_1h,$R1_1,$R1_1h,$R2_1,$R2_1h,$R3_1,$R3_1h);
|
|
$code.=<<___;
|
|
|
|
vmovdqu64 $R0_0, `0*32`($res)
|
|
vmovdqu64 $R0_0h, `1*32`($res)
|
|
vmovdqu64 $R1_0, `2*32`($res)
|
|
vmovdqu64 $R1_0h, `3*32`($res)
|
|
vmovdqu64 $R2_0, `4*32`($res)
|
|
vmovdqu64 $R2_0h, `5*32`($res)
|
|
vmovdqu64 $R3_0, `6*32`($res)
|
|
vmovdqu64 $R3_0h, `7*32`($res)
|
|
|
|
vmovdqu64 $R0_1, `8*32`($res)
|
|
vmovdqu64 $R0_1h, `9*32`($res)
|
|
vmovdqu64 $R1_1, `10*32`($res)
|
|
vmovdqu64 $R1_1h, `11*32`($res)
|
|
vmovdqu64 $R2_1, `12*32`($res)
|
|
vmovdqu64 $R2_1h, `13*32`($res)
|
|
vmovdqu64 $R3_1, `14*32`($res)
|
|
vmovdqu64 $R3_1h, `15*32`($res)
|
|
|
|
vzeroupper
|
|
lea (%rsp),%rax
|
|
.cfi_def_cfa_register %rax
|
|
___
|
|
$code.=<<___ if ($win64);
|
|
vmovdqa64 `0*16`(%rax),%xmm6
|
|
vmovdqa64 `1*16`(%rax),%xmm7
|
|
vmovdqa64 `2*16`(%rax),%xmm8
|
|
vmovdqa64 `3*16`(%rax),%xmm9
|
|
vmovdqa64 `4*16`(%rax),%xmm10
|
|
vmovdqa64 `5*16`(%rax),%xmm11
|
|
vmovdqa64 `6*16`(%rax),%xmm12
|
|
vmovdqa64 `7*16`(%rax),%xmm13
|
|
vmovdqa64 `8*16`(%rax),%xmm14
|
|
vmovdqa64 `9*16`(%rax),%xmm15
|
|
lea 168(%rsp),%rax
|
|
___
|
|
$code.=<<___;
|
|
mov 0(%rax),%r15
|
|
.cfi_restore %r15
|
|
mov 8(%rax),%r14
|
|
.cfi_restore %r14
|
|
mov 16(%rax),%r13
|
|
.cfi_restore %r13
|
|
mov 24(%rax),%r12
|
|
.cfi_restore %r12
|
|
mov 32(%rax),%rbp
|
|
.cfi_restore %rbp
|
|
mov 40(%rax),%rbx
|
|
.cfi_restore %rbx
|
|
lea 48(%rax),%rsp
|
|
.cfi_def_cfa %rsp,8
|
|
.Lossl_rsaz_amm52x30_x2_ifma256_epilogue:
|
|
ret
|
|
.cfi_endproc
|
|
.size ossl_rsaz_amm52x30_x2_ifma256, .-ossl_rsaz_amm52x30_x2_ifma256
|
|
___
|
|
}
|
|
|
|
###############################################################################
|
|
# Constant time extraction from the precomputed table of powers base^i, where
|
|
# i = 0..2^EXP_WIN_SIZE-1
|
|
#
|
|
# The input |red_table| contains precomputations for two independent base values.
|
|
# |red_table_idx1| and |red_table_idx2| are corresponding power indexes.
|
|
#
|
|
# Extracted value (output) is 2 (30 + 2) digits numbers in 2^52 radix.
|
|
# (2 high QW is zero padding)
|
|
#
|
|
# void ossl_extract_multiplier_2x30_win5(BN_ULONG *red_Y,
|
|
# const BN_ULONG red_table[1 << EXP_WIN_SIZE][2][32],
|
|
# int red_table_idx1, int red_table_idx2);
|
|
#
|
|
# EXP_WIN_SIZE = 5
|
|
###############################################################################
|
|
{
|
|
# input parameters
|
|
my ($out,$red_tbl,$red_tbl_idx1,$red_tbl_idx2)=$win64 ? ("%rcx","%rdx","%r8", "%r9") : # Win64 order
|
|
("%rdi","%rsi","%rdx","%rcx"); # Unix order
|
|
|
|
my ($t0,$t1,$t2,$t3,$t4,$t5) = map("%ymm$_", (0..5));
|
|
my ($t6,$t7,$t8,$t9,$t10,$t11,$t12,$t13,$t14,$t15) = map("%ymm$_", (16..25));
|
|
my ($tmp,$cur_idx,$idx1,$idx2,$ones) = map("%ymm$_", (26..30));
|
|
|
|
my @t = ($t0,$t1,$t2,$t3,$t4,$t5,$t6,$t7,$t8,$t9,$t10,$t11,$t12,$t13,$t14,$t15);
|
|
my $t0xmm = $t0;
|
|
$t0xmm =~ s/%y/%x/;
|
|
|
|
$code.=<<___;
|
|
.text
|
|
|
|
.align 32
|
|
.globl ossl_extract_multiplier_2x30_win5
|
|
.type ossl_extract_multiplier_2x30_win5,\@abi-omnipotent
|
|
ossl_extract_multiplier_2x30_win5:
|
|
.cfi_startproc
|
|
endbranch
|
|
vmovdqa64 .Lones(%rip), $ones # broadcast ones
|
|
vpbroadcastq $red_tbl_idx1, $idx1
|
|
vpbroadcastq $red_tbl_idx2, $idx2
|
|
leaq `(1<<5)*2*32*8`($red_tbl), %rax # holds end of the tbl
|
|
|
|
# zeroing t0..n, cur_idx
|
|
vpxor $t0xmm, $t0xmm, $t0xmm
|
|
vmovdqa64 $t0, $cur_idx
|
|
___
|
|
foreach (1..15) {
|
|
$code.="vmovdqa64 $t0, $t[$_] \n";
|
|
}
|
|
$code.=<<___;
|
|
|
|
.align 32
|
|
.Lloop:
|
|
vpcmpq \$0, $cur_idx, $idx1, %k1 # mask of (idx1 == cur_idx)
|
|
vpcmpq \$0, $cur_idx, $idx2, %k2 # mask of (idx2 == cur_idx)
|
|
___
|
|
foreach (0..15) {
|
|
my $mask = $_<8?"%k1":"%k2";
|
|
$code.=<<___;
|
|
vmovdqu64 `${_}*32`($red_tbl), $tmp # load data from red_tbl
|
|
vpblendmq $tmp, $t[$_], ${t[$_]}{$mask} # extract data when mask is not zero
|
|
___
|
|
}
|
|
$code.=<<___;
|
|
vpaddq $ones, $cur_idx, $cur_idx # increment cur_idx
|
|
addq \$`2*32*8`, $red_tbl
|
|
cmpq $red_tbl, %rax
|
|
jne .Lloop
|
|
___
|
|
# store t0..n
|
|
foreach (0..15) {
|
|
$code.="vmovdqu64 $t[$_], `${_}*32`($out) \n";
|
|
}
|
|
$code.=<<___;
|
|
|
|
ret
|
|
.cfi_endproc
|
|
.size ossl_extract_multiplier_2x30_win5, .-ossl_extract_multiplier_2x30_win5
|
|
___
|
|
$code.=<<___;
|
|
.data
|
|
.align 32
|
|
.Lones:
|
|
.quad 1,1,1,1
|
|
.Lzeros:
|
|
.quad 0,0,0,0
|
|
___
|
|
}
|
|
|
|
if ($win64) {
|
|
$rec="%rcx";
|
|
$frame="%rdx";
|
|
$context="%r8";
|
|
$disp="%r9";
|
|
|
|
$code.=<<___;
|
|
.extern __imp_RtlVirtualUnwind
|
|
.type rsaz_avx_handler,\@abi-omnipotent
|
|
.align 16
|
|
rsaz_avx_handler:
|
|
push %rsi
|
|
push %rdi
|
|
push %rbx
|
|
push %rbp
|
|
push %r12
|
|
push %r13
|
|
push %r14
|
|
push %r15
|
|
pushfq
|
|
sub \$64,%rsp
|
|
|
|
mov 120($context),%rax # pull context->Rax
|
|
mov 248($context),%rbx # pull context->Rip
|
|
|
|
mov 8($disp),%rsi # disp->ImageBase
|
|
mov 56($disp),%r11 # disp->HandlerData
|
|
|
|
mov 0(%r11),%r10d # HandlerData[0]
|
|
lea (%rsi,%r10),%r10 # prologue label
|
|
cmp %r10,%rbx # context->Rip<.Lprologue
|
|
jb .Lcommon_seh_tail
|
|
|
|
mov 4(%r11),%r10d # HandlerData[1]
|
|
lea (%rsi,%r10),%r10 # epilogue label
|
|
cmp %r10,%rbx # context->Rip>=.Lepilogue
|
|
jae .Lcommon_seh_tail
|
|
|
|
mov 152($context),%rax # pull context->Rsp
|
|
|
|
lea (%rax),%rsi # %xmm save area
|
|
lea 512($context),%rdi # & context.Xmm6
|
|
mov \$20,%ecx # 10*sizeof(%xmm0)/sizeof(%rax)
|
|
.long 0xa548f3fc # cld; rep movsq
|
|
|
|
lea `48+168`(%rax),%rax
|
|
|
|
mov -8(%rax),%rbx
|
|
mov -16(%rax),%rbp
|
|
mov -24(%rax),%r12
|
|
mov -32(%rax),%r13
|
|
mov -40(%rax),%r14
|
|
mov -48(%rax),%r15
|
|
mov %rbx,144($context) # restore context->Rbx
|
|
mov %rbp,160($context) # restore context->Rbp
|
|
mov %r12,216($context) # restore context->R12
|
|
mov %r13,224($context) # restore context->R13
|
|
mov %r14,232($context) # restore context->R14
|
|
mov %r15,240($context) # restore context->R14
|
|
|
|
.Lcommon_seh_tail:
|
|
mov 8(%rax),%rdi
|
|
mov 16(%rax),%rsi
|
|
mov %rax,152($context) # restore context->Rsp
|
|
mov %rsi,168($context) # restore context->Rsi
|
|
mov %rdi,176($context) # restore context->Rdi
|
|
|
|
mov 40($disp),%rdi # disp->ContextRecord
|
|
mov $context,%rsi # context
|
|
mov \$154,%ecx # sizeof(CONTEXT)
|
|
.long 0xa548f3fc # cld; rep movsq
|
|
|
|
mov $disp,%rsi
|
|
xor %rcx,%rcx # arg1, UNW_FLAG_NHANDLER
|
|
mov 8(%rsi),%rdx # arg2, disp->ImageBase
|
|
mov 0(%rsi),%r8 # arg3, disp->ControlPc
|
|
mov 16(%rsi),%r9 # arg4, disp->FunctionEntry
|
|
mov 40(%rsi),%r10 # disp->ContextRecord
|
|
lea 56(%rsi),%r11 # &disp->HandlerData
|
|
lea 24(%rsi),%r12 # &disp->EstablisherFrame
|
|
mov %r10,32(%rsp) # arg5
|
|
mov %r11,40(%rsp) # arg6
|
|
mov %r12,48(%rsp) # arg7
|
|
mov %rcx,56(%rsp) # arg8, (NULL)
|
|
call *__imp_RtlVirtualUnwind(%rip)
|
|
|
|
mov \$1,%eax # ExceptionContinueSearch
|
|
add \$64,%rsp
|
|
popfq
|
|
pop %r15
|
|
pop %r14
|
|
pop %r13
|
|
pop %r12
|
|
pop %rbp
|
|
pop %rbx
|
|
pop %rdi
|
|
pop %rsi
|
|
ret
|
|
.size rsaz_avx_handler,.-rsaz_avx_handler
|
|
|
|
.section .pdata
|
|
.align 4
|
|
.rva .LSEH_begin_ossl_rsaz_amm52x30_x1_ifma256
|
|
.rva .LSEH_end_ossl_rsaz_amm52x30_x1_ifma256
|
|
.rva .LSEH_info_ossl_rsaz_amm52x30_x1_ifma256
|
|
|
|
.rva .LSEH_begin_ossl_rsaz_amm52x30_x2_ifma256
|
|
.rva .LSEH_end_ossl_rsaz_amm52x30_x2_ifma256
|
|
.rva .LSEH_info_ossl_rsaz_amm52x30_x2_ifma256
|
|
|
|
.section .xdata
|
|
.align 8
|
|
.LSEH_info_ossl_rsaz_amm52x30_x1_ifma256:
|
|
.byte 9,0,0,0
|
|
.rva rsaz_avx_handler
|
|
.rva .Lossl_rsaz_amm52x30_x1_ifma256_body,.Lossl_rsaz_amm52x30_x1_ifma256_epilogue
|
|
.LSEH_info_ossl_rsaz_amm52x30_x2_ifma256:
|
|
.byte 9,0,0,0
|
|
.rva rsaz_avx_handler
|
|
.rva .Lossl_rsaz_amm52x30_x2_ifma256_body,.Lossl_rsaz_amm52x30_x2_ifma256_epilogue
|
|
___
|
|
}
|
|
}}} else {{{ # fallback for old assembler
|
|
$code.=<<___;
|
|
.text
|
|
|
|
.globl ossl_rsaz_amm52x30_x1_ifma256
|
|
.globl ossl_rsaz_amm52x30_x2_ifma256
|
|
.globl ossl_extract_multiplier_2x30_win5
|
|
.type ossl_rsaz_amm52x30_x1_ifma256,\@abi-omnipotent
|
|
ossl_rsaz_amm52x30_x1_ifma256:
|
|
ossl_rsaz_amm52x30_x2_ifma256:
|
|
ossl_extract_multiplier_2x30_win5:
|
|
.byte 0x0f,0x0b # ud2
|
|
ret
|
|
.size ossl_rsaz_amm52x30_x1_ifma256, .-ossl_rsaz_amm52x30_x1_ifma256
|
|
___
|
|
}}}
|
|
|
|
$code =~ s/\`([^\`]*)\`/eval $1/gem;
|
|
print $code;
|
|
close STDOUT or die "error closing STDOUT: $!";
|