diff options
Diffstat (limited to 'crypto/bn/asm/rsaz-3k-avx512.pl')
| -rw-r--r-- | crypto/bn/asm/rsaz-3k-avx512.pl | 874 |
1 files changed, 874 insertions, 0 deletions
diff --git a/crypto/bn/asm/rsaz-3k-avx512.pl b/crypto/bn/asm/rsaz-3k-avx512.pl new file mode 100644 index 0000000000..e294afd294 --- /dev/null +++ b/crypto/bn/asm/rsaz-3k-avx512.pl @@ -0,0 +1,874 @@ +# Copyright 2021 The OpenSSL Project Authors. All Rights Reserved. +# Copyright (c) 2021, Intel Corporation. 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 +# +# +# Originally written by Sergey Kirillov and Andrey Matyukov +# Intel Corporation +# +# March 2021 +# +# Initial release. +# +# Implementation utilizes 256-bit (ymm) registers to avoid frequency scaling issues. +# +# IceLake-Client @ 1.3GHz +# |---------+-----------------------+---------------+-------------| +# | | OpenSSL 3.0.0-alpha15 | this | Unit | +# |---------+-----------------------+---------------+-------------| +# | rsa3072 | 6 397 637 | 2 866 593 | cycles/sign | +# | | 203.2 | 453.5 / +123% | sign/s | +# |---------+-----------------------+---------------+-------------| +# + +# $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 && $ARGV[0] !~ m|\.| ? shift : undef; + +$win64=0; $win64=1 if ($flavour =~ /[nm]asm|mingw64/ || $output =~ /\.asm$/); +$avx512ifma=0; + +$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1; +( $xlate="${dir}x86_64-xlate.pl" and -f $xlate ) or +( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or +die "can't locate x86_64-xlate.pl"; + +if (`$ENV{CC} -Wa,-v -c -o /dev/null -x assembler /dev/null 2>&1` + =~ /GNU assembler version ([2-9]\.[0-9]+)/) { + $avx512ifma = ($1>=2.26); +} + +if (!$avx512 && $win64 && ($flavour =~ /nasm/ || $ENV{ASM} =~ /nasm/) && + `nasm -v 2>&1` =~ /NASM version ([2-9]\.[0-9]+)(?:\.([0-9]+))?/) { + $avx512ifma = ($1==2.11 && $2>=8) + ($1>=2.12); +} + +if (!$avx512 && `$ENV{CC} -v 2>&1` =~ /((?:clang|LLVM) version|.*based on LLVM) ([0-9]+\.[0-9]+)/) { + $avx512ifma = ($2>=7.0); +} + +open OUT,"| \"$^X\" \"$xlate\" $flavour \"$output\"" + or die "can't call $xlate: $!"; +*STDOUT=*OUT; + +if ($avx512ifma>0) {{{ +@_6_args_universal_ABI = ("%rdi","%rsi","%rdx","%rcx","%r8","%r9"); + +############################################################################### +# Almost Montgomery Multiplication (AMM) for 30-digit number in radix 2^52. +# +# AMM is defined as presented in the paper [1]. +# +# The input and output are presented in 2^52 radix domain, i.e. +# |res|, |a|, |b|, |m| are arrays of 32 64-bit qwords with 12 high bits zeroed +# +# NOTE: the function uses zero-padded data - 2 high QWs is a padding. +# +# |k0| is a Montgomery coefficient, which is here k0 = -1/m mod 2^64 +# +# NB: the AMM implementation does not perform "conditional" subtraction step +# specified in the original algorithm as according to the Lemma 1 from the paper +# [2], the result will be always < 2*m and can be used as a direct input to +# the next AMM iteration. This post-condition is true, provided the correct +# parameter |s| (notion of the Lemma 1 from [2]) is choosen, i.e. s >= n + 2 * k, +# which matches our case: 1560 > 1536 + 2 * 1. +# +# [1] Gueron, S. Efficient software implementations of modular exponentiation. +# DOI: 10.1007/s13389-012-0031-5 +# [2] Gueron, S. Enhanced Montgomery Multiplication. +# DOI: 10.1007/3-540-36400-5_5 +# +# void ossl_rsaz_amm52x30_x1_ifma256(BN_ULONG *res, +# const BN_ULONG *a, +# const BN_ULONG *b, +# const BN_ULONG *m, +# BN_ULONG k0); +############################################################################### +{ +# input parameters ("%rdi","%rsi","%rdx","%rcx","%r8") +my ($res,$a,$b,$m,$k0) = @_6_args_universal_ABI; + +my $mask52 = "%rax"; +my $acc0_0 = "%r9"; +my $acc0_0_low = "%r9d"; +my $acc0_1 = "%r15"; +my $acc0_1_low = "%r15d"; +my $b_ptr = "%r11"; + +my $iter = "%ebx"; + +my $zero = "%ymm0"; +my $Bi = "%ymm1"; +my $Yi = "%ymm2"; +my ($R0_0,$R0_0h,$R1_0,$R1_0h,$R2_0,$R2_0h,$R3_0,$R3_0h) = map("%ymm$_",(3..10)); +my ($R0_1,$R0_1h,$R1_1,$R1_1h,$R2_1,$R2_1h,$R3_1,$R3_1h) = map("%ymm$_",(11..18)); + +# Registers mapping for normalization +my ($T0,$T0h,$T1,$T1h,$T2,$T2h,$T3,$T3h) = ("$zero", "$Bi", "$Yi", map("%ymm$_", (19..23))); + +sub amm52x30_x1() { +# _data_offset - offset in the |a| or |m| arrays pointing to the beginning +# of data for corresponding AMM operation; +# _b_offset - offset in the |b| array pointing to the next qword digit; +my ($_data_offset,$_b_offset,$_acc,$_R0,$_R0h,$_R1,$_R1h,$_R2,$_R2h,$_R3,$_R3h,$_k0) = @_; +my $_R0_xmm = $_R0; +$_R0_xmm =~ s/%y/%x/; +$code.=<<___; + movq $_b_offset($b_ptr), %r13 # b[i] + + vpbroadcastq %r13, $Bi # broadcast b[i] + movq $_data_offset($a), %rdx + mulx %r13, %r13, %r12 # a[0]*b[i] = (t0,t2) + addq %r13, $_acc # acc += t0 + movq %r12, %r10 + adcq \$0, %r10 # t2 += CF + + movq $_k0, %r13 + imulq $_acc, %r13 # acc * k0 + andq $mask52, %r13 # yi = (acc * k0) & mask52 + + vpbroadcastq %r13, $Yi # broadcast y[i] + movq $_data_offset($m), %rdx + mulx %r13, %r13, %r12 # yi * m[0] = (t0,t1) + addq %r13, $_acc # acc += t0 + adcq %r12, %r10 # t2 += (t1 + CF) + + shrq \$52, $_acc + salq \$12, %r10 + or %r10, $_acc # acc = ((acc >> 52) | (t2 << 12)) + + vpmadd52luq `$_data_offset+64*0`($a), $Bi, $_R0 + vpmadd52luq `$_data_offset+64*0+32`($a), $Bi, $_R0h + vpmadd52luq `$_data_offset+64*1`($a), $Bi, $_R1 + vpmadd52luq `$_data_offset+64*1+32`($a), $Bi, $_R1h + vpmadd52luq `$_data_offset+64*2`($a), $Bi, $_R2 + vpmadd52luq `$_data_offset+64*2+32`($a), $Bi, $_R2h + vpmadd52luq `$_data_offset+64*3`($a), $Bi, $_R3 + vpmadd52luq `$_data_offset+64*3+32`($a), $Bi, $_R3h + + vpmadd52luq `$_data_offset+64*0`($m), $Yi, $_R0 + vpmadd52luq `$_data_offset+64*0+32`($m), $Yi, $_R0h + vpmadd52luq `$_data_offset+64*1`($m), $Yi, $_R1 + vpmadd52luq `$_data_offset+64*1+32`($m), $Yi, $_R1h + vpmadd52luq `$_data_offset+64*2`($m), $Yi, $_R2 + vpmadd52luq `$_data_offset+64*2+32`($m), $Yi, $_R2h + vpmadd52luq `$_data_offset+64*3`($m), $Yi, $_R3 + vpmadd52luq `$_data_offset+64*3+32`($m), $Yi, $_R3h + + # Shift accumulators right by 1 qword, zero extending the highest one + valignq \$1, $_R0, $_R0h, $_R0 + valignq \$1, $_R0h, $_R1, $_R0h + valignq \$1, $_R1, $_R1h, $_R1 + valignq \$1, $_R1h, $_R2, $_R1h + valignq \$1, $_R2, $_R2h, $_R2 + valignq \$1, $_R2h, $_R3, $_R2h + valignq \$1, $_R3, $_R3h, $_R3 + valignq \$1, $_R3h, $zero, $_R3h + + vmovq $_R0_xmm, %r13 + addq %r13, $_acc # acc += R0[0] + + vpmadd52huq `$_data_offset+64*0`($a), $Bi, $_R0 + vpmadd52huq `$_data_offset+64*0+32`($a), $Bi, $_R0h + vpmadd52huq `$_data_offset+64*1`($a), $Bi, $_R1 + vpmadd52huq `$_data_offset+64*1+32`($a), $Bi, $_R1h + vpmadd52huq `$_data_offset+64*2`($a), $Bi, $_R2 + vpmadd52huq `$_data_offset+64*2+32`($a), $Bi, $_R2h + vpmadd52huq `$_data_offset+64*3`($a), $Bi, $_R3 + vpmadd52huq `$_data_offset+64*3+32`($a), $Bi, $_R3h + + vpmadd52huq `$_data_offset+64*0`($m), $Yi, $_R0 + vpmadd52huq `$_data_offset+64*0+32`($m), $Yi, $_R0h + vpmadd52huq `$_data_offset+64*1`($m), $Yi, $_R1 + vpmadd52huq `$_data_offset+64*1+32`($m), $Yi, $_R1h + vpmadd52huq `$_data_offset+64*2`($m), $Yi, $_R2 + vpmadd52huq `$_data_offset+64*2+32`($m), $Yi, $_R2h + vpmadd52huq `$_data_offset+64*3`($m), $Yi, $_R3 + vpmadd52huq `$_data_offset+64*3+32`($m), $Yi, $_R3h +___ +} + +# Normalization routine: handles carry bits and gets bignum qwords to normalized +# 2^52 representation. +# +# Uses %r8-14,%e[abcd]x +sub amm52x30_x1_norm { +my ($_acc,$_R0,$_R0h,$_R1,$_R1h,$_R2,$_R2h,$_R3,$_R3h) = @_; +$code.=<<___; + # Put accumulator to low qword in R0 + vpbroadcastq $_acc, $T0 + vpblendd \$3, $T0, $_R0, $_R0 + + # Extract "carries" (12 high bits) from each QW of the bignum + # Save them to LSB of QWs in T0..Tn + vpsrlq \$52, $_R0, $T0 + vpsrlq \$52, $_R0h, $T0h + vpsrlq \$52, $_R1, $T1 + vpsrlq \$52, $_R1h, $T1h + vpsrlq \$52, $_R2, $T2 + vpsrlq \$52, $_R2h, $T2h + vpsrlq \$52, $_R3, $T3 + vpsrlq \$52, $_R3h, $T3h + + # "Shift left" T0..Tn by 1 QW + valignq \$3, $T3, $T3h, $T3h + valignq \$3, $T2h, $T3, $T3 + valignq \$3, $T2, $T2h, $T2h + valignq \$3, $T1h, $T2, $T2 + valignq \$3, $T1, $T1h, $T1h + valignq \$3, $T0h, $T1, $T1 + valignq \$3, $T0, $T0h, $T0h + valignq \$3, .Lzeros(%rip), $T0, $T0 + + # Drop "carries" from R0..Rn QWs + vpandq .Lmask52x4(%rip), $_R0, $_R0 + vpandq .Lmask52x4(%rip), $_R0h, $_R0h + vpandq .Lmask52x4(%rip), $_R1, $_R1 + vpandq .Lmask52x4(%rip), $_R1h, $_R1h + vpandq .Lmask52x4(%rip), $_R2, $_R2 + vpandq .Lmask52x4(%rip), $_R2h, $_R2h + vpandq .Lmask52x4(%rip), $_R3, $_R3 + vpandq .Lmask52x4(%rip), $_R3h, $_R3h + + # Sum R0..Rn with corresponding adjusted carries + vpaddq $T0, $_R0, $_R0 + vpaddq $T0h, $_R0h, $_R0h + vpaddq $T1, $_R1, $_R1 + vpaddq $T1h, $_R1h, $_R1h + vpaddq $T2, $_R2, $_R2 + vpaddq $T2h, $_R2h, $_R2h + vpaddq $T3, $_R3, $_R3 + vpaddq $T3h, $_R3h, $_R3h + + # Now handle carry bits from this addition + # Get mask of QWs whose 52-bit parts overflow + vpcmpuq \$6,.Lmask52x4(%rip),${_R0},%k1 # OP=nle (i.e. gt) + vpcmpuq \$6,.Lmask52x4(%rip),${_R0h},%k2 + kmovb %k1,%r14d + kmovb %k2,%r13d + shl \$4,%r13b + or %r13b,%r14b + + vpcmpuq \$6,.Lmask52x4(%rip),${_R1},%k1 + vpcmpuq \$6,.Lmask52x4(%rip),${_R1h},%k2 + kmovb %k1,%r13d + kmovb %k2,%r12d + shl \$4,%r12b + or %r12b,%r13b + + vpcmpuq \$6,.Lmask52x4(%rip),${_R2},%k1 + vpcmpuq \$6,.Lmask52x4(%rip),${_R2h},%k2 + kmovb %k1,%r12d + kmovb %k2,%r11d + shl \$4,%r11b + or %r11b,%r12b + + vpcmpuq \$6,.Lmask52x4(%rip),${_R3},%k1 + vpcmpuq \$6,.Lmask52x4(%rip),${_R3h},%k2 + kmovb %k1,%r11d + kmovb %k2,%r10d + shl \$4,%r10b + or %r10b,%r11b + + addb %r14b,%r14b + adcb %r13b,%r13b + adcb %r12b,%r12b + adcb %r11b,%r11b + + # Get mask of QWs whose 52-bit parts saturated + vpcmpuq \$0,.Lmask52x4(%rip),${_R0},%k1 # OP=eq + vpcmpuq \$0,.Lmask52x4(%rip),${_R0h},%k2 + kmovb %k1,%r9d + kmovb %k2,%r8d + shl \$4,%r8b + or %r8b,%r9b + + vpcmpuq \$0,.Lmask52x4(%rip),${_R1},%k1 + vpcmpuq \$0,.Lmask52x4(%rip),${_R1h},%k2 + kmovb %k1,%r8d + kmovb %k2,%edx + shl \$4,%dl + or %dl,%r8b + + vpcmpuq \$0,.Lmask52x4(%rip),${_R2},%k1 + vpcmpuq \$0,.Lmask52x4(%rip),${_R2h},%k2 + kmovb %k1,%edx + kmovb %k2,%ecx + shl \$4,%cl + or %cl,%dl + + vpcmpuq \$0,.Lmask52x4(%rip),${_R3},%k1 + vpcmpuq \$0,.Lmask52x4(%rip),${_R3h},%k2 + kmovb %k1,%ecx + kmovb %k2,%ebx + shl \$4,%bl + or %bl,%cl + + addb %r9b,%r14b + adcb %r8b,%r13b + adcb %dl,%r12b + adcb %cl,%r11b + + xor %r9b,%r14b + xor %r8b,%r13b + xor %dl,%r12b + xor %cl,%r11b + + kmovb %r14d,%k1 + shr \$4,%r14b + kmovb %r14d,%k2 + kmovb %r13d,%k3 + shr \$4,%r13b + kmovb %r13d,%k4 + kmovb %r12d,%k5 + shr \$4,%r12b + kmovb %r12d,%k6 + kmovb %r11d,%k7 + + vpsubq .Lmask52x4(%rip), $_R0, ${_R0}{%k1} + vpsubq .Lmask52x4(%rip), $_R0h, ${_R0h}{%k2} + vpsubq .Lmask52x4(%rip), $_R1, ${_R1}{%k3} + vpsubq .Lmask52x4(%rip), $_R1h, ${_R1h}{%k4} + vpsubq .Lmask52x4(%rip), $_R2, ${_R2}{%k5} + vpsubq .Lmask52x4(%rip), $_R2h, ${_R2h}{%k6} + vpsubq .Lmask52x4(%rip), $_R3, ${_R3}{%k7} + + vpandq .Lmask52x4(%rip), $_R0, $_R0 + vpandq .Lmask52x4(%rip), $_R0h, $_R0h + vpandq .Lmask52x4(%rip), $_R1, $_R1 + vpandq .Lmask52x4(%rip), $_R1h, $_R1h + vpandq .Lmask52x4(%rip), $_R2, $_R2 + vpandq .Lmask52x4(%rip), $_R2h, $_R2h + vpandq .Lmask52x4(%rip), $_R3, $_R3 + + shr \$4,%r11b + kmovb %r11d,%k1 + + vpsubq .Lmask52x4(%rip), $_R3h, ${_R3h}{%k1} + + vpandq .Lmask52x4(%rip), $_R3h, $_R3h +___ +} + +$code.=<<___; +.text + +.globl ossl_rsaz_amm52x30_x1_ifma256 +.type ossl_rsaz_amm52x30_x1_ifma256,\@function,5 +.align 32 +ossl_rsaz_amm52x30_x1_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 # 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: $!"; |