1359 lines
34 KiB
Perl
1359 lines
34 KiB
Perl
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#!/usr/bin/env perl
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#
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# ====================================================================
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# Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
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# project. The module is, however, dual licensed under OpenSSL and
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# CRYPTOGAMS licenses depending on where you obtain it. For further
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# details see http://www.openssl.org/~appro/cryptogams/.
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# ====================================================================
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#
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# January 2013
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#
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# This is AESNI-CBC+SHA256 stitch implementation. The idea, as spelled
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# in http://download.intel.com/design/intarch/papers/323686.pdf, is
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# that since AESNI-CBC encrypt exhibit *very* low instruction-level
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# parallelism, interleaving it with another algorithm would allow to
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# utilize processor resources better and achieve better performance.
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# SHA256 instruction sequences(*) are taken from sha512-x86_64.pl and
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# AESNI code is weaved into it. As SHA256 dominates execution time,
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# stitch performance does not depend on AES key length. Below are
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# performance numbers in cycles per processed byte, less is better,
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# for standalone AESNI-CBC encrypt, standalone SHA256, and stitched
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# subroutine:
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#
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# AES-128/-192/-256+SHA256 this(**)gain
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# Sandy Bridge 5.05/6.05/7.05+11.6 13.0 +28%/36%/43%
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# Ivy Bridge 5.05/6.05/7.05+10.3 11.6 +32%/41%/50%
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# Bulldozer 5.77/6.89/8.00+13.7 13.7 +42%/50%/58%
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#
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# (*) there are XOP, AVX1 and AVX2 code pathes, meaning that
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# Westmere is omitted from loop, this is because gain was not
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# estimated high enough to justify the effort;
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# (**) these are EVP-free results, results obtained with 'speed
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# -evp aes-256-cbc-hmac-sha256' will vary by percent or two;
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$flavour = shift;
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$output = shift;
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if ($flavour =~ /\./) { $output = $flavour; undef $flavour; }
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$win64=0; $win64=1 if ($flavour =~ /[nm]asm|mingw64/ || $output =~ /\.asm$/);
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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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$avx = ($1>=2.19) + ($1>=2.22);
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}
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if (!$avx && $win64 && ($flavour =~ /nasm/ || $ENV{ASM} =~ /nasm/) &&
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`nasm -v 2>&1` =~ /NASM version ([2-9]\.[0-9]+)/) {
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$avx = ($1>=2.09) + ($1>=2.10);
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}
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if (!$avx && $win64 && ($flavour =~ /masm/ || $ENV{ASM} =~ /ml64/) &&
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`ml64 2>&1` =~ /Version ([0-9]+)\./) {
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$avx = ($1>=10) + ($1>=11);
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}
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open OUT,"| \"$^X\" $xlate $flavour $output";
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*STDOUT=*OUT;
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$func="aesni_cbc_sha256_enc";
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$TABLE="K256";
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$SZ=4;
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@ROT=($A,$B,$C,$D,$E,$F,$G,$H)=("%eax","%ebx","%ecx","%edx",
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"%r8d","%r9d","%r10d","%r11d");
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($T1,$a0,$a1,$a2,$a3)=("%r12d","%r13d","%r14d","%r15d","%esi");
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@Sigma0=( 2,13,22);
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@Sigma1=( 6,11,25);
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@sigma0=( 7,18, 3);
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@sigma1=(17,19,10);
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$rounds=64;
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########################################################################
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# void aesni_cbc_sha256_enc(const void *inp,
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# void *out,
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# size_t length,
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# const AES_KEY *key,
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# unsigned char *iv,
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# SHA256_CTX *ctx,
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# const void *in0);
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($inp, $out, $len, $key, $ivp, $ctx, $in0) =
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("%rdi","%rsi","%rdx","%rcx","%r8","%r9","%r10");
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$Tbl="%rbp";
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$_inp="16*$SZ+0*8(%rsp)";
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$_out="16*$SZ+1*8(%rsp)";
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$_end="16*$SZ+2*8(%rsp)";
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$_key="16*$SZ+3*8(%rsp)";
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$_ivp="16*$SZ+4*8(%rsp)";
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$_ctx="16*$SZ+5*8(%rsp)";
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$_in0="16*$SZ+6*8(%rsp)";
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$_rsp="16*$SZ+7*8(%rsp)";
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$framesz=16*$SZ+8*8;
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$code=<<___;
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.text
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.extern OPENSSL_ia32cap_P
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.globl $func
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.type $func,\@abi-omnipotent
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.align 16
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$func:
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___
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$code.=<<___ if ($avx);
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lea OPENSSL_ia32cap_P(%rip),%r11
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mov \$1,%eax
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cmp \$0,`$win64?"%rcx":"%rdi"`
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je .Lprobe
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mov 0(%r11),%eax
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mov 4(%r11),%r10d
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mov 8(%r11),%r11d
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test \$`1<<11`,%r10d # check for XOP
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jnz ${func}_xop
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___
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$code.=<<___ if ($avx>1);
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and \$`1<<8|1<<5|1<<3`,%r11d # check for BMI2+AVX2+BMI1
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cmp \$`1<<8|1<<5|1<<3`,%r11d
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je ${func}_avx2
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___
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$code.=<<___ if ($avx);
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and \$`1<<30`,%eax # mask "Intel CPU" bit
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and \$`1<<28|1<<9`,%r10d # mask AVX+SSSE3 bits
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or %eax,%r10d
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cmp \$`1<<28|1<<9|1<<30`,%r10d
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je ${func}_avx
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ud2
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___
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$code.=<<___;
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xor %eax,%eax
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cmp \$0,`$win64?"%rcx":"%rdi"`
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je .Lprobe
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ud2
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.Lprobe:
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ret
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.size $func,.-$func
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.align 64
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.type $TABLE,\@object
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$TABLE:
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.long 0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5
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.long 0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5
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.long 0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5
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.long 0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5
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.long 0xd807aa98,0x12835b01,0x243185be,0x550c7dc3
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.long 0xd807aa98,0x12835b01,0x243185be,0x550c7dc3
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.long 0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174
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.long 0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174
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.long 0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc
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.long 0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc
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.long 0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da
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.long 0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da
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.long 0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7
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.long 0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7
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.long 0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967
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.long 0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967
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.long 0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13
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.long 0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13
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.long 0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85
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.long 0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85
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.long 0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3
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.long 0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3
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.long 0xd192e819,0xd6990624,0xf40e3585,0x106aa070
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.long 0xd192e819,0xd6990624,0xf40e3585,0x106aa070
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.long 0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5
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.long 0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5
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.long 0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3
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.long 0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3
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.long 0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208
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.long 0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208
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.long 0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2
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.long 0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2
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.long 0x00010203,0x04050607,0x08090a0b,0x0c0d0e0f
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.long 0x00010203,0x04050607,0x08090a0b,0x0c0d0e0f
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.long 0,0,0,0, 0,0,0,0, -1,-1,-1,-1
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.long 0,0,0,0, 0,0,0,0
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.asciz "AESNI-CBC+SHA256 stitch for x86_64, CRYPTOGAMS by <appro\@openssl.org>"
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.align 64
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___
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######################################################################
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# SIMD code paths
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#
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{{{
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($iv,$inout,$roundkey,$temp,
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$mask10,$mask12,$mask14,$offload)=map("%xmm$_",(8..15));
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$aesni_cbc_idx=0;
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@aesni_cbc_block = (
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## &vmovdqu ($roundkey,"0x00-0x80($inp)");'
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## &vmovdqu ($inout,($inp));
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## &mov ($_inp,$inp);
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'&vpxor ($inout,$inout,$roundkey);'.
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' &vmovdqu ($roundkey,"0x10-0x80($inp)");',
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'&vpxor ($inout,$inout,$iv);',
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'&vaesenc ($inout,$inout,$roundkey);'.
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' &vmovdqu ($roundkey,"0x20-0x80($inp)");',
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'&vaesenc ($inout,$inout,$roundkey);'.
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' &vmovdqu ($roundkey,"0x30-0x80($inp)");',
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'&vaesenc ($inout,$inout,$roundkey);'.
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' &vmovdqu ($roundkey,"0x40-0x80($inp)");',
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'&vaesenc ($inout,$inout,$roundkey);'.
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' &vmovdqu ($roundkey,"0x50-0x80($inp)");',
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'&vaesenc ($inout,$inout,$roundkey);'.
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' &vmovdqu ($roundkey,"0x60-0x80($inp)");',
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'&vaesenc ($inout,$inout,$roundkey);'.
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' &vmovdqu ($roundkey,"0x70-0x80($inp)");',
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'&vaesenc ($inout,$inout,$roundkey);'.
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' &vmovdqu ($roundkey,"0x80-0x80($inp)");',
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'&vaesenc ($inout,$inout,$roundkey);'.
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' &vmovdqu ($roundkey,"0x90-0x80($inp)");',
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'&vaesenc ($inout,$inout,$roundkey);'.
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' &vmovdqu ($roundkey,"0xa0-0x80($inp)");',
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'&vaesenclast ($temp,$inout,$roundkey);'.
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' &vaesenc ($inout,$inout,$roundkey);'.
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' &vmovdqu ($roundkey,"0xb0-0x80($inp)");',
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'&vpand ($iv,$temp,$mask10);'.
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' &vaesenc ($inout,$inout,$roundkey);'.
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' &vmovdqu ($roundkey,"0xc0-0x80($inp)");',
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'&vaesenclast ($temp,$inout,$roundkey);'.
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' &vaesenc ($inout,$inout,$roundkey);'.
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' &vmovdqu ($roundkey,"0xd0-0x80($inp)");',
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'&vpand ($temp,$temp,$mask12);'.
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' &vaesenc ($inout,$inout,$roundkey);'.
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'&vmovdqu ($roundkey,"0xe0-0x80($inp)");',
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'&vpor ($iv,$iv,$temp);'.
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' &vaesenclast ($temp,$inout,$roundkey);'.
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' &vmovdqu ($roundkey,"0x00-0x80($inp)");'
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## &mov ($inp,$_inp);
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## &mov ($out,$_out);
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## &vpand ($temp,$temp,$mask14);
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## &vpor ($iv,$iv,$temp);
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## &vmovdqu ($iv,($out,$inp);
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## &lea (inp,16($inp));
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);
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my $a4=$T1;
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my ($a,$b,$c,$d,$e,$f,$g,$h);
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sub AUTOLOAD() # thunk [simplified] 32-bit style perlasm
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{ my $opcode = $AUTOLOAD; $opcode =~ s/.*:://;
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my $arg = pop;
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$arg = "\$$arg" if ($arg*1 eq $arg);
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$code .= "\t$opcode\t".join(',',$arg,reverse @_)."\n";
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}
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sub body_00_15 () {
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(
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'($a,$b,$c,$d,$e,$f,$g,$h)=@ROT;'.
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'&ror ($a0,$Sigma1[2]-$Sigma1[1])',
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'&mov ($a,$a1)',
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'&mov ($a4,$f)',
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'&xor ($a0,$e)',
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'&ror ($a1,$Sigma0[2]-$Sigma0[1])',
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'&xor ($a4,$g)', # f^g
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'&ror ($a0,$Sigma1[1]-$Sigma1[0])',
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'&xor ($a1,$a)',
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'&and ($a4,$e)', # (f^g)&e
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@aesni_cbc_block[$aesni_cbc_idx++].
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'&xor ($a0,$e)',
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'&add ($h,$SZ*($i&15)."(%rsp)")', # h+=X[i]+K[i]
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'&mov ($a2,$a)',
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'&ror ($a1,$Sigma0[1]-$Sigma0[0])',
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'&xor ($a4,$g)', # Ch(e,f,g)=((f^g)&e)^g
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'&xor ($a2,$b)', # a^b, b^c in next round
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'&ror ($a0,$Sigma1[0])', # Sigma1(e)
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'&add ($h,$a4)', # h+=Ch(e,f,g)
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|
|
'&and ($a3,$a2)', # (b^c)&(a^b)
|
||
|
|
|
||
|
|
'&xor ($a1,$a)',
|
||
|
|
'&add ($h,$a0)', # h+=Sigma1(e)
|
||
|
|
'&xor ($a3,$b)', # Maj(a,b,c)=Ch(a^b,c,b)
|
||
|
|
|
||
|
|
'&add ($d,$h)', # d+=h
|
||
|
|
'&ror ($a1,$Sigma0[0])', # Sigma0(a)
|
||
|
|
'&add ($h,$a3)', # h+=Maj(a,b,c)
|
||
|
|
|
||
|
|
'&mov ($a0,$d)',
|
||
|
|
'&add ($a1,$h);'. # h+=Sigma0(a)
|
||
|
|
'($a2,$a3) = ($a3,$a2); unshift(@ROT,pop(@ROT)); $i++;'
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($avx) {{
|
||
|
|
######################################################################
|
||
|
|
# XOP code path
|
||
|
|
#
|
||
|
|
$code.=<<___;
|
||
|
|
.type ${func}_xop,\@function,6
|
||
|
|
.align 64
|
||
|
|
${func}_xop:
|
||
|
|
.Lxop_shortcut:
|
||
|
|
mov `($win64?56:8)`(%rsp),$in0 # load 7th parameter
|
||
|
|
push %rbx
|
||
|
|
push %rbp
|
||
|
|
push %r12
|
||
|
|
push %r13
|
||
|
|
push %r14
|
||
|
|
push %r15
|
||
|
|
mov %rsp,%r11 # copy %rsp
|
||
|
|
sub \$`$framesz+$win64*16*10`,%rsp
|
||
|
|
and \$-64,%rsp # align stack frame
|
||
|
|
|
||
|
|
shl \$6,$len
|
||
|
|
sub $inp,$out # re-bias
|
||
|
|
sub $inp,$in0
|
||
|
|
add $inp,$len # end of input
|
||
|
|
|
||
|
|
#mov $inp,$_inp # saved later
|
||
|
|
mov $out,$_out
|
||
|
|
mov $len,$_end
|
||
|
|
#mov $key,$_key # remains resident in $inp register
|
||
|
|
mov $ivp,$_ivp
|
||
|
|
mov $ctx,$_ctx
|
||
|
|
mov $in0,$_in0
|
||
|
|
mov %r11,$_rsp
|
||
|
|
___
|
||
|
|
$code.=<<___ if ($win64);
|
||
|
|
movaps %xmm6,`$framesz+16*0`(%rsp)
|
||
|
|
movaps %xmm7,`$framesz+16*1`(%rsp)
|
||
|
|
movaps %xmm8,`$framesz+16*2`(%rsp)
|
||
|
|
movaps %xmm9,`$framesz+16*3`(%rsp)
|
||
|
|
movaps %xmm10,`$framesz+16*4`(%rsp)
|
||
|
|
movaps %xmm11,`$framesz+16*5`(%rsp)
|
||
|
|
movaps %xmm12,`$framesz+16*6`(%rsp)
|
||
|
|
movaps %xmm13,`$framesz+16*7`(%rsp)
|
||
|
|
movaps %xmm14,`$framesz+16*8`(%rsp)
|
||
|
|
movaps %xmm15,`$framesz+16*9`(%rsp)
|
||
|
|
___
|
||
|
|
$code.=<<___;
|
||
|
|
.Lprologue_xop:
|
||
|
|
vzeroall
|
||
|
|
|
||
|
|
mov $inp,%r12 # borrow $a4
|
||
|
|
lea 0x80($key),$inp # size optimization, reassign
|
||
|
|
lea $TABLE+`$SZ*2*$rounds+32`(%rip),%r13 # borrow $a0
|
||
|
|
mov 0xf0-0x80($inp),%r14d # rounds, borrow $a1
|
||
|
|
mov $ctx,%r15 # borrow $a2
|
||
|
|
mov $in0,%rsi # borrow $a3
|
||
|
|
vmovdqu ($ivp),$iv # load IV
|
||
|
|
sub \$9,%r14
|
||
|
|
|
||
|
|
mov $SZ*0(%r15),$A
|
||
|
|
mov $SZ*1(%r15),$B
|
||
|
|
mov $SZ*2(%r15),$C
|
||
|
|
mov $SZ*3(%r15),$D
|
||
|
|
mov $SZ*4(%r15),$E
|
||
|
|
mov $SZ*5(%r15),$F
|
||
|
|
mov $SZ*6(%r15),$G
|
||
|
|
mov $SZ*7(%r15),$H
|
||
|
|
|
||
|
|
vmovdqa 0x00(%r13,%r14,8),$mask14
|
||
|
|
vmovdqa 0x10(%r13,%r14,8),$mask12
|
||
|
|
vmovdqa 0x20(%r13,%r14,8),$mask10
|
||
|
|
vmovdqu 0x00-0x80($inp),$roundkey
|
||
|
|
jmp .Lloop_xop
|
||
|
|
___
|
||
|
|
if ($SZ==4) { # SHA256
|
||
|
|
my @X = map("%xmm$_",(0..3));
|
||
|
|
my ($t0,$t1,$t2,$t3) = map("%xmm$_",(4..7));
|
||
|
|
|
||
|
|
$code.=<<___;
|
||
|
|
.align 16
|
||
|
|
.Lloop_xop:
|
||
|
|
vmovdqa $TABLE+`$SZ*2*$rounds`(%rip),$t3
|
||
|
|
vmovdqu 0x00(%rsi,%r12),@X[0]
|
||
|
|
vmovdqu 0x10(%rsi,%r12),@X[1]
|
||
|
|
vmovdqu 0x20(%rsi,%r12),@X[2]
|
||
|
|
vmovdqu 0x30(%rsi,%r12),@X[3]
|
||
|
|
vpshufb $t3,@X[0],@X[0]
|
||
|
|
lea $TABLE(%rip),$Tbl
|
||
|
|
vpshufb $t3,@X[1],@X[1]
|
||
|
|
vpshufb $t3,@X[2],@X[2]
|
||
|
|
vpaddd 0x00($Tbl),@X[0],$t0
|
||
|
|
vpshufb $t3,@X[3],@X[3]
|
||
|
|
vpaddd 0x20($Tbl),@X[1],$t1
|
||
|
|
vpaddd 0x40($Tbl),@X[2],$t2
|
||
|
|
vpaddd 0x60($Tbl),@X[3],$t3
|
||
|
|
vmovdqa $t0,0x00(%rsp)
|
||
|
|
mov $A,$a1
|
||
|
|
vmovdqa $t1,0x10(%rsp)
|
||
|
|
mov $B,$a3
|
||
|
|
vmovdqa $t2,0x20(%rsp)
|
||
|
|
xor $C,$a3 # magic
|
||
|
|
vmovdqa $t3,0x30(%rsp)
|
||
|
|
mov $E,$a0
|
||
|
|
jmp .Lxop_00_47
|
||
|
|
|
||
|
|
.align 16
|
||
|
|
.Lxop_00_47:
|
||
|
|
sub \$-16*2*$SZ,$Tbl # size optimization
|
||
|
|
vmovdqu (%r12),$inout # $a4
|
||
|
|
mov %r12,$_inp # $a4
|
||
|
|
___
|
||
|
|
sub XOP_256_00_47 () {
|
||
|
|
my $j = shift;
|
||
|
|
my $body = shift;
|
||
|
|
my @X = @_;
|
||
|
|
my @insns = (&$body,&$body,&$body,&$body); # 104 instructions
|
||
|
|
|
||
|
|
&vpalignr ($t0,@X[1],@X[0],$SZ); # X[1..4]
|
||
|
|
eval(shift(@insns));
|
||
|
|
eval(shift(@insns));
|
||
|
|
&vpalignr ($t3,@X[3],@X[2],$SZ); # X[9..12]
|
||
|
|
eval(shift(@insns));
|
||
|
|
eval(shift(@insns));
|
||
|
|
&vprotd ($t1,$t0,8*$SZ-$sigma0[1]);
|
||
|
|
eval(shift(@insns));
|
||
|
|
eval(shift(@insns));
|
||
|
|
&vpsrld ($t0,$t0,$sigma0[2]);
|
||
|
|
eval(shift(@insns));
|
||
|
|
eval(shift(@insns));
|
||
|
|
&vpaddd (@X[0],@X[0],$t3); # X[0..3] += X[9..12]
|
||
|
|
eval(shift(@insns));
|
||
|
|
eval(shift(@insns));
|
||
|
|
eval(shift(@insns));
|
||
|
|
eval(shift(@insns));
|
||
|
|
&vprotd ($t2,$t1,$sigma0[1]-$sigma0[0]);
|
||
|
|
eval(shift(@insns));
|
||
|
|
eval(shift(@insns));
|
||
|
|
&vpxor ($t0,$t0,$t1);
|
||
|
|
eval(shift(@insns));
|
||
|
|
eval(shift(@insns));
|
||
|
|
eval(shift(@insns));
|
||
|
|
eval(shift(@insns));
|
||
|
|
&vprotd ($t3,@X[3],8*$SZ-$sigma1[1]);
|
||
|
|
eval(shift(@insns));
|
||
|
|
eval(shift(@insns));
|
||
|
|
&vpxor ($t0,$t0,$t2); # sigma0(X[1..4])
|
||
|
|
eval(shift(@insns));
|
||
|
|
eval(shift(@insns));
|
||
|
|
&vpsrld ($t2,@X[3],$sigma1[2]);
|
||
|
|
eval(shift(@insns));
|
||
|
|
eval(shift(@insns));
|
||
|
|
&vpaddd (@X[0],@X[0],$t0); # X[0..3] += sigma0(X[1..4])
|
||
|
|
eval(shift(@insns));
|
||
|
|
eval(shift(@insns));
|
||
|
|
&vprotd ($t1,$t3,$sigma1[1]-$sigma1[0]);
|
||
|
|
eval(shift(@insns));
|
||
|
|
eval(shift(@insns));
|
||
|
|
&vpxor ($t3,$t3,$t2);
|
||
|
|
eval(shift(@insns));
|
||
|
|
eval(shift(@insns));
|
||
|
|
eval(shift(@insns));
|
||
|
|
eval(shift(@insns));
|
||
|
|
&vpxor ($t3,$t3,$t1); # sigma1(X[14..15])
|
||
|
|
eval(shift(@insns));
|
||
|
|
eval(shift(@insns));
|
||
|
|
eval(shift(@insns));
|
||
|
|
eval(shift(@insns));
|
||
|
|
&vpsrldq ($t3,$t3,8);
|
||
|
|
eval(shift(@insns));
|
||
|
|
eval(shift(@insns));
|
||
|
|
eval(shift(@insns));
|
||
|
|
eval(shift(@insns));
|
||
|
|
&vpaddd (@X[0],@X[0],$t3); # X[0..1] += sigma1(X[14..15])
|
||
|
|
eval(shift(@insns));
|
||
|
|
eval(shift(@insns));
|
||
|
|
eval(shift(@insns));
|
||
|
|
eval(shift(@insns));
|
||
|
|
&vprotd ($t3,@X[0],8*$SZ-$sigma1[1]);
|
||
|
|
eval(shift(@insns));
|
||
|
|
eval(shift(@insns));
|
||
|
|
&vpsrld ($t2,@X[0],$sigma1[2]);
|
||
|
|
eval(shift(@insns));
|
||
|
|
eval(shift(@insns));
|
||
|
|
&vprotd ($t1,$t3,$sigma1[1]-$sigma1[0]);
|
||
|
|
eval(shift(@insns));
|
||
|
|
eval(shift(@insns));
|
||
|
|
&vpxor ($t3,$t3,$t2);
|
||
|
|
eval(shift(@insns));
|
||
|
|
eval(shift(@insns));
|
||
|
|
eval(shift(@insns));
|
||
|
|
eval(shift(@insns));
|
||
|
|
&vpxor ($t3,$t3,$t1); # sigma1(X[16..17])
|
||
|
|
eval(shift(@insns));
|
||
|
|
eval(shift(@insns));
|
||
|
|
eval(shift(@insns));
|
||
|
|
eval(shift(@insns));
|
||
|
|
&vpslldq ($t3,$t3,8); # 22 instructions
|
||
|
|
eval(shift(@insns));
|
||
|
|
eval(shift(@insns));
|
||
|
|
eval(shift(@insns));
|
||
|
|
eval(shift(@insns));
|
||
|
|
&vpaddd (@X[0],@X[0],$t3); # X[2..3] += sigma1(X[16..17])
|
||
|
|
eval(shift(@insns));
|
||
|
|
eval(shift(@insns));
|
||
|
|
eval(shift(@insns));
|
||
|
|
eval(shift(@insns));
|
||
|
|
&vpaddd ($t2,@X[0],16*2*$j."($Tbl)");
|
||
|
|
foreach (@insns) { eval; } # remaining instructions
|
||
|
|
&vmovdqa (16*$j."(%rsp)",$t2);
|
||
|
|
}
|
||
|
|
|
||
|
|
$aesni_cbc_idx=0;
|
||
|
|
for ($i=0,$j=0; $j<4; $j++) {
|
||
|
|
&XOP_256_00_47($j,\&body_00_15,@X);
|
||
|
|
push(@X,shift(@X)); # rotate(@X)
|
||
|
|
}
|
||
|
|
&mov ("%r12",$_inp); # borrow $a4
|
||
|
|
&vpand ($temp,$temp,$mask14);
|
||
|
|
&mov ("%r15",$_out); # borrow $a2
|
||
|
|
&vpor ($iv,$iv,$temp);
|
||
|
|
&vmovdqu ("(%r15,%r12)",$iv); # write output
|
||
|
|
&lea ("%r12","16(%r12)"); # inp++
|
||
|
|
|
||
|
|
&cmpb ($SZ-1+16*2*$SZ."($Tbl)",0);
|
||
|
|
&jne (".Lxop_00_47");
|
||
|
|
|
||
|
|
&vmovdqu ($inout,"(%r12)");
|
||
|
|
&mov ($_inp,"%r12");
|
||
|
|
|
||
|
|
$aesni_cbc_idx=0;
|
||
|
|
for ($i=0; $i<16; ) {
|
||
|
|
foreach(body_00_15()) { eval; }
|
||
|
|
}
|
||
|
|
}
|
||
|
|
$code.=<<___;
|
||
|
|
mov $_inp,%r12 # borrow $a4
|
||
|
|
mov $_out,%r13 # borrow $a0
|
||
|
|
mov $_ctx,%r15 # borrow $a2
|
||
|
|
mov $_in0,%rsi # borrow $a3
|
||
|
|
|
||
|
|
vpand $mask14,$temp,$temp
|
||
|
|
mov $a1,$A
|
||
|
|
vpor $temp,$iv,$iv
|
||
|
|
vmovdqu $iv,(%r13,%r12) # write output
|
||
|
|
lea 16(%r12),%r12 # inp++
|
||
|
|
|
||
|
|
add $SZ*0(%r15),$A
|
||
|
|
add $SZ*1(%r15),$B
|
||
|
|
add $SZ*2(%r15),$C
|
||
|
|
add $SZ*3(%r15),$D
|
||
|
|
add $SZ*4(%r15),$E
|
||
|
|
add $SZ*5(%r15),$F
|
||
|
|
add $SZ*6(%r15),$G
|
||
|
|
add $SZ*7(%r15),$H
|
||
|
|
|
||
|
|
cmp $_end,%r12
|
||
|
|
|
||
|
|
mov $A,$SZ*0(%r15)
|
||
|
|
mov $B,$SZ*1(%r15)
|
||
|
|
mov $C,$SZ*2(%r15)
|
||
|
|
mov $D,$SZ*3(%r15)
|
||
|
|
mov $E,$SZ*4(%r15)
|
||
|
|
mov $F,$SZ*5(%r15)
|
||
|
|
mov $G,$SZ*6(%r15)
|
||
|
|
mov $H,$SZ*7(%r15)
|
||
|
|
|
||
|
|
jb .Lloop_xop
|
||
|
|
|
||
|
|
mov $_ivp,$ivp
|
||
|
|
mov $_rsp,%rsi
|
||
|
|
vmovdqu $iv,($ivp) # output IV
|
||
|
|
vzeroall
|
||
|
|
___
|
||
|
|
$code.=<<___ if ($win64);
|
||
|
|
movaps `$framesz+16*0`(%rsp),%xmm6
|
||
|
|
movaps `$framesz+16*1`(%rsp),%xmm7
|
||
|
|
movaps `$framesz+16*2`(%rsp),%xmm8
|
||
|
|
movaps `$framesz+16*3`(%rsp),%xmm9
|
||
|
|
movaps `$framesz+16*4`(%rsp),%xmm10
|
||
|
|
movaps `$framesz+16*5`(%rsp),%xmm11
|
||
|
|
movaps `$framesz+16*6`(%rsp),%xmm12
|
||
|
|
movaps `$framesz+16*7`(%rsp),%xmm13
|
||
|
|
movaps `$framesz+16*8`(%rsp),%xmm14
|
||
|
|
movaps `$framesz+16*9`(%rsp),%xmm15
|
||
|
|
___
|
||
|
|
$code.=<<___;
|
||
|
|
mov (%rsi),%r15
|
||
|
|
mov 8(%rsi),%r14
|
||
|
|
mov 16(%rsi),%r13
|
||
|
|
mov 24(%rsi),%r12
|
||
|
|
mov 32(%rsi),%rbp
|
||
|
|
mov 40(%rsi),%rbx
|
||
|
|
lea 48(%rsi),%rsp
|
||
|
|
.Lepilogue_xop:
|
||
|
|
ret
|
||
|
|
.size ${func}_xop,.-${func}_xop
|
||
|
|
___
|
||
|
|
######################################################################
|
||
|
|
# AVX+shrd code path
|
||
|
|
#
|
||
|
|
local *ror = sub { &shrd(@_[0],@_) };
|
||
|
|
|
||
|
|
$code.=<<___;
|
||
|
|
.type ${func}_avx,\@function,6
|
||
|
|
.align 64
|
||
|
|
${func}_avx:
|
||
|
|
.Lavx_shortcut:
|
||
|
|
mov `($win64?56:8)`(%rsp),$in0 # load 7th parameter
|
||
|
|
push %rbx
|
||
|
|
push %rbp
|
||
|
|
push %r12
|
||
|
|
push %r13
|
||
|
|
push %r14
|
||
|
|
push %r15
|
||
|
|
mov %rsp,%r11 # copy %rsp
|
||
|
|
sub \$`$framesz+$win64*16*10`,%rsp
|
||
|
|
and \$-64,%rsp # align stack frame
|
||
|
|
|
||
|
|
shl \$6,$len
|
||
|
|
sub $inp,$out # re-bias
|
||
|
|
sub $inp,$in0
|
||
|
|
add $inp,$len # end of input
|
||
|
|
|
||
|
|
#mov $inp,$_inp # saved later
|
||
|
|
mov $out,$_out
|
||
|
|
mov $len,$_end
|
||
|
|
#mov $key,$_key # remains resident in $inp register
|
||
|
|
mov $ivp,$_ivp
|
||
|
|
mov $ctx,$_ctx
|
||
|
|
mov $in0,$_in0
|
||
|
|
mov %r11,$_rsp
|
||
|
|
___
|
||
|
|
$code.=<<___ if ($win64);
|
||
|
|
movaps %xmm6,`$framesz+16*0`(%rsp)
|
||
|
|
movaps %xmm7,`$framesz+16*1`(%rsp)
|
||
|
|
movaps %xmm8,`$framesz+16*2`(%rsp)
|
||
|
|
movaps %xmm9,`$framesz+16*3`(%rsp)
|
||
|
|
movaps %xmm10,`$framesz+16*4`(%rsp)
|
||
|
|
movaps %xmm11,`$framesz+16*5`(%rsp)
|
||
|
|
movaps %xmm12,`$framesz+16*6`(%rsp)
|
||
|
|
movaps %xmm13,`$framesz+16*7`(%rsp)
|
||
|
|
movaps %xmm14,`$framesz+16*8`(%rsp)
|
||
|
|
movaps %xmm15,`$framesz+16*9`(%rsp)
|
||
|
|
___
|
||
|
|
$code.=<<___;
|
||
|
|
.Lprologue_avx:
|
||
|
|
vzeroall
|
||
|
|
|
||
|
|
mov $inp,%r12 # borrow $a4
|
||
|
|
lea 0x80($key),$inp # size optimization, reassign
|
||
|
|
lea $TABLE+`$SZ*2*$rounds+32`(%rip),%r13 # borrow $a0
|
||
|
|
mov 0xf0-0x80($inp),%r14d # rounds, borrow $a1
|
||
|
|
mov $ctx,%r15 # borrow $a2
|
||
|
|
mov $in0,%rsi # borrow $a3
|
||
|
|
vmovdqu ($ivp),$iv # load IV
|
||
|
|
sub \$9,%r14
|
||
|
|
|
||
|
|
mov $SZ*0(%r15),$A
|
||
|
|
mov $SZ*1(%r15),$B
|
||
|
|
mov $SZ*2(%r15),$C
|
||
|
|
mov $SZ*3(%r15),$D
|
||
|
|
mov $SZ*4(%r15),$E
|
||
|
|
mov $SZ*5(%r15),$F
|
||
|
|
mov $SZ*6(%r15),$G
|
||
|
|
mov $SZ*7(%r15),$H
|
||
|
|
|
||
|
|
vmovdqa 0x00(%r13,%r14,8),$mask14
|
||
|
|
vmovdqa 0x10(%r13,%r14,8),$mask12
|
||
|
|
vmovdqa 0x20(%r13,%r14,8),$mask10
|
||
|
|
vmovdqu 0x00-0x80($inp),$roundkey
|
||
|
|
___
|
||
|
|
if ($SZ==4) { # SHA256
|
||
|
|
my @X = map("%xmm$_",(0..3));
|
||
|
|
my ($t0,$t1,$t2,$t3) = map("%xmm$_",(4..7));
|
||
|
|
|
||
|
|
$code.=<<___;
|
||
|
|
jmp .Lloop_avx
|
||
|
|
.align 16
|
||
|
|
.Lloop_avx:
|
||
|
|
vmovdqa $TABLE+`$SZ*2*$rounds`(%rip),$t3
|
||
|
|
vmovdqu 0x00(%rsi,%r12),@X[0]
|
||
|
|
vmovdqu 0x10(%rsi,%r12),@X[1]
|
||
|
|
vmovdqu 0x20(%rsi,%r12),@X[2]
|
||
|
|
vmovdqu 0x30(%rsi,%r12),@X[3]
|
||
|
|
vpshufb $t3,@X[0],@X[0]
|
||
|
|
lea $TABLE(%rip),$Tbl
|
||
|
|
vpshufb $t3,@X[1],@X[1]
|
||
|
|
vpshufb $t3,@X[2],@X[2]
|
||
|
|
vpaddd 0x00($Tbl),@X[0],$t0
|
||
|
|
vpshufb $t3,@X[3],@X[3]
|
||
|
|
vpaddd 0x20($Tbl),@X[1],$t1
|
||
|
|
vpaddd 0x40($Tbl),@X[2],$t2
|
||
|
|
vpaddd 0x60($Tbl),@X[3],$t3
|
||
|
|
vmovdqa $t0,0x00(%rsp)
|
||
|
|
mov $A,$a1
|
||
|
|
vmovdqa $t1,0x10(%rsp)
|
||
|
|
mov $B,$a3
|
||
|
|
vmovdqa $t2,0x20(%rsp)
|
||
|
|
xor $C,$a3 # magic
|
||
|
|
vmovdqa $t3,0x30(%rsp)
|
||
|
|
mov $E,$a0
|
||
|
|
jmp .Lavx_00_47
|
||
|
|
|
||
|
|
.align 16
|
||
|
|
.Lavx_00_47:
|
||
|
|
sub \$-16*2*$SZ,$Tbl # size optimization
|
||
|
|
vmovdqu (%r12),$inout # $a4
|
||
|
|
mov %r12,$_inp # $a4
|
||
|
|
___
|
||
|
|
sub Xupdate_256_AVX () {
|
||
|
|
(
|
||
|
|
'&vpalignr ($t0,@X[1],@X[0],$SZ)', # X[1..4]
|
||
|
|
'&vpalignr ($t3,@X[3],@X[2],$SZ)', # X[9..12]
|
||
|
|
'&vpsrld ($t2,$t0,$sigma0[0]);',
|
||
|
|
'&vpaddd (@X[0],@X[0],$t3)', # X[0..3] += X[9..12]
|
||
|
|
'&vpsrld ($t3,$t0,$sigma0[2])',
|
||
|
|
'&vpslld ($t1,$t0,8*$SZ-$sigma0[1]);',
|
||
|
|
'&vpxor ($t0,$t3,$t2)',
|
||
|
|
'&vpshufd ($t3,@X[3],0b11111010)',# X[14..15]
|
||
|
|
'&vpsrld ($t2,$t2,$sigma0[1]-$sigma0[0]);',
|
||
|
|
'&vpxor ($t0,$t0,$t1)',
|
||
|
|
'&vpslld ($t1,$t1,$sigma0[1]-$sigma0[0]);',
|
||
|
|
'&vpxor ($t0,$t0,$t2)',
|
||
|
|
'&vpsrld ($t2,$t3,$sigma1[2]);',
|
||
|
|
'&vpxor ($t0,$t0,$t1)', # sigma0(X[1..4])
|
||
|
|
'&vpsrlq ($t3,$t3,$sigma1[0]);',
|
||
|
|
'&vpaddd (@X[0],@X[0],$t0)', # X[0..3] += sigma0(X[1..4])
|
||
|
|
'&vpxor ($t2,$t2,$t3);',
|
||
|
|
'&vpsrlq ($t3,$t3,$sigma1[1]-$sigma1[0])',
|
||
|
|
'&vpxor ($t2,$t2,$t3)', # sigma1(X[14..15])
|
||
|
|
'&vpshufd ($t2,$t2,0b10000100)',
|
||
|
|
'&vpsrldq ($t2,$t2,8)',
|
||
|
|
'&vpaddd (@X[0],@X[0],$t2)', # X[0..1] += sigma1(X[14..15])
|
||
|
|
'&vpshufd ($t3,@X[0],0b01010000)',# X[16..17]
|
||
|
|
'&vpsrld ($t2,$t3,$sigma1[2])',
|
||
|
|
'&vpsrlq ($t3,$t3,$sigma1[0])',
|
||
|
|
'&vpxor ($t2,$t2,$t3);',
|
||
|
|
'&vpsrlq ($t3,$t3,$sigma1[1]-$sigma1[0])',
|
||
|
|
'&vpxor ($t2,$t2,$t3)',
|
||
|
|
'&vpshufd ($t2,$t2,0b11101000)',
|
||
|
|
'&vpslldq ($t2,$t2,8)',
|
||
|
|
'&vpaddd (@X[0],@X[0],$t2)' # X[2..3] += sigma1(X[16..17])
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
sub AVX_256_00_47 () {
|
||
|
|
my $j = shift;
|
||
|
|
my $body = shift;
|
||
|
|
my @X = @_;
|
||
|
|
my @insns = (&$body,&$body,&$body,&$body); # 104 instructions
|
||
|
|
|
||
|
|
foreach (Xupdate_256_AVX()) { # 29 instructions
|
||
|
|
eval;
|
||
|
|
eval(shift(@insns));
|
||
|
|
eval(shift(@insns));
|
||
|
|
eval(shift(@insns));
|
||
|
|
}
|
||
|
|
&vpaddd ($t2,@X[0],16*2*$j."($Tbl)");
|
||
|
|
foreach (@insns) { eval; } # remaining instructions
|
||
|
|
&vmovdqa (16*$j."(%rsp)",$t2);
|
||
|
|
}
|
||
|
|
|
||
|
|
$aesni_cbc_idx=0;
|
||
|
|
for ($i=0,$j=0; $j<4; $j++) {
|
||
|
|
&AVX_256_00_47($j,\&body_00_15,@X);
|
||
|
|
push(@X,shift(@X)); # rotate(@X)
|
||
|
|
}
|
||
|
|
&mov ("%r12",$_inp); # borrow $a4
|
||
|
|
&vpand ($temp,$temp,$mask14);
|
||
|
|
&mov ("%r15",$_out); # borrow $a2
|
||
|
|
&vpor ($iv,$iv,$temp);
|
||
|
|
&vmovdqu ("(%r15,%r12)",$iv); # write output
|
||
|
|
&lea ("%r12","16(%r12)"); # inp++
|
||
|
|
|
||
|
|
&cmpb ($SZ-1+16*2*$SZ."($Tbl)",0);
|
||
|
|
&jne (".Lavx_00_47");
|
||
|
|
|
||
|
|
&vmovdqu ($inout,"(%r12)");
|
||
|
|
&mov ($_inp,"%r12");
|
||
|
|
|
||
|
|
$aesni_cbc_idx=0;
|
||
|
|
for ($i=0; $i<16; ) {
|
||
|
|
foreach(body_00_15()) { eval; }
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
$code.=<<___;
|
||
|
|
mov $_inp,%r12 # borrow $a4
|
||
|
|
mov $_out,%r13 # borrow $a0
|
||
|
|
mov $_ctx,%r15 # borrow $a2
|
||
|
|
mov $_in0,%rsi # borrow $a3
|
||
|
|
|
||
|
|
vpand $mask14,$temp,$temp
|
||
|
|
mov $a1,$A
|
||
|
|
vpor $temp,$iv,$iv
|
||
|
|
vmovdqu $iv,(%r13,%r12) # write output
|
||
|
|
lea 16(%r12),%r12 # inp++
|
||
|
|
|
||
|
|
add $SZ*0(%r15),$A
|
||
|
|
add $SZ*1(%r15),$B
|
||
|
|
add $SZ*2(%r15),$C
|
||
|
|
add $SZ*3(%r15),$D
|
||
|
|
add $SZ*4(%r15),$E
|
||
|
|
add $SZ*5(%r15),$F
|
||
|
|
add $SZ*6(%r15),$G
|
||
|
|
add $SZ*7(%r15),$H
|
||
|
|
|
||
|
|
cmp $_end,%r12
|
||
|
|
|
||
|
|
mov $A,$SZ*0(%r15)
|
||
|
|
mov $B,$SZ*1(%r15)
|
||
|
|
mov $C,$SZ*2(%r15)
|
||
|
|
mov $D,$SZ*3(%r15)
|
||
|
|
mov $E,$SZ*4(%r15)
|
||
|
|
mov $F,$SZ*5(%r15)
|
||
|
|
mov $G,$SZ*6(%r15)
|
||
|
|
mov $H,$SZ*7(%r15)
|
||
|
|
jb .Lloop_avx
|
||
|
|
|
||
|
|
mov $_ivp,$ivp
|
||
|
|
mov $_rsp,%rsi
|
||
|
|
vmovdqu $iv,($ivp) # output IV
|
||
|
|
vzeroall
|
||
|
|
___
|
||
|
|
$code.=<<___ if ($win64);
|
||
|
|
movaps `$framesz+16*0`(%rsp),%xmm6
|
||
|
|
movaps `$framesz+16*1`(%rsp),%xmm7
|
||
|
|
movaps `$framesz+16*2`(%rsp),%xmm8
|
||
|
|
movaps `$framesz+16*3`(%rsp),%xmm9
|
||
|
|
movaps `$framesz+16*4`(%rsp),%xmm10
|
||
|
|
movaps `$framesz+16*5`(%rsp),%xmm11
|
||
|
|
movaps `$framesz+16*6`(%rsp),%xmm12
|
||
|
|
movaps `$framesz+16*7`(%rsp),%xmm13
|
||
|
|
movaps `$framesz+16*8`(%rsp),%xmm14
|
||
|
|
movaps `$framesz+16*9`(%rsp),%xmm15
|
||
|
|
___
|
||
|
|
$code.=<<___;
|
||
|
|
mov (%rsi),%r15
|
||
|
|
mov 8(%rsi),%r14
|
||
|
|
mov 16(%rsi),%r13
|
||
|
|
mov 24(%rsi),%r12
|
||
|
|
mov 32(%rsi),%rbp
|
||
|
|
mov 40(%rsi),%rbx
|
||
|
|
lea 48(%rsi),%rsp
|
||
|
|
.Lepilogue_avx:
|
||
|
|
ret
|
||
|
|
.size ${func}_avx,.-${func}_avx
|
||
|
|
___
|
||
|
|
|
||
|
|
if ($avx>1) {{
|
||
|
|
######################################################################
|
||
|
|
# AVX2+BMI code path
|
||
|
|
#
|
||
|
|
my $a5=$SZ==4?"%esi":"%rsi"; # zap $inp
|
||
|
|
my $PUSH8=8*2*$SZ;
|
||
|
|
use integer;
|
||
|
|
|
||
|
|
sub bodyx_00_15 () {
|
||
|
|
# at start $a1 should be zero, $a3 - $b^$c and $a4 copy of $f
|
||
|
|
(
|
||
|
|
'($a,$b,$c,$d,$e,$f,$g,$h)=@ROT;'.
|
||
|
|
|
||
|
|
'&add ($h,(32*($i/(16/$SZ))+$SZ*($i%(16/$SZ)))%$PUSH8.$base)', # h+=X[i]+K[i]
|
||
|
|
'&and ($a4,$e)', # f&e
|
||
|
|
'&rorx ($a0,$e,$Sigma1[2])',
|
||
|
|
'&rorx ($a2,$e,$Sigma1[1])',
|
||
|
|
|
||
|
|
'&lea ($a,"($a,$a1)")', # h+=Sigma0(a) from the past
|
||
|
|
'&lea ($h,"($h,$a4)")',
|
||
|
|
'&andn ($a4,$e,$g)', # ~e&g
|
||
|
|
'&xor ($a0,$a2)',
|
||
|
|
|
||
|
|
'&rorx ($a1,$e,$Sigma1[0])',
|
||
|
|
'&lea ($h,"($h,$a4)")', # h+=Ch(e,f,g)=(e&f)+(~e&g)
|
||
|
|
'&xor ($a0,$a1)', # Sigma1(e)
|
||
|
|
'&mov ($a2,$a)',
|
||
|
|
|
||
|
|
'&rorx ($a4,$a,$Sigma0[2])',
|
||
|
|
'&lea ($h,"($h,$a0)")', # h+=Sigma1(e)
|
||
|
|
'&xor ($a2,$b)', # a^b, b^c in next round
|
||
|
|
'&rorx ($a1,$a,$Sigma0[1])',
|
||
|
|
|
||
|
|
'&rorx ($a0,$a,$Sigma0[0])',
|
||
|
|
'&lea ($d,"($d,$h)")', # d+=h
|
||
|
|
'&and ($a3,$a2)', # (b^c)&(a^b)
|
||
|
|
@aesni_cbc_block[$aesni_cbc_idx++].
|
||
|
|
'&xor ($a1,$a4)',
|
||
|
|
|
||
|
|
'&xor ($a3,$b)', # Maj(a,b,c)=Ch(a^b,c,b)
|
||
|
|
'&xor ($a1,$a0)', # Sigma0(a)
|
||
|
|
'&lea ($h,"($h,$a3)");'. # h+=Maj(a,b,c)
|
||
|
|
'&mov ($a4,$e)', # copy of f in future
|
||
|
|
|
||
|
|
'($a2,$a3) = ($a3,$a2); unshift(@ROT,pop(@ROT)); $i++;'
|
||
|
|
);
|
||
|
|
# and at the finish one has to $a+=$a1
|
||
|
|
}
|
||
|
|
|
||
|
|
$code.=<<___;
|
||
|
|
.type ${func}_avx2,\@function,6
|
||
|
|
.align 64
|
||
|
|
${func}_avx2:
|
||
|
|
.Lavx2_shortcut:
|
||
|
|
mov `($win64?56:8)`(%rsp),$in0 # load 7th parameter
|
||
|
|
push %rbx
|
||
|
|
push %rbp
|
||
|
|
push %r12
|
||
|
|
push %r13
|
||
|
|
push %r14
|
||
|
|
push %r15
|
||
|
|
mov %rsp,%r11 # copy %rsp
|
||
|
|
sub \$`2*$SZ*$rounds+8*8+$win64*16*10`,%rsp
|
||
|
|
and \$-256*$SZ,%rsp # align stack frame
|
||
|
|
add \$`2*$SZ*($rounds-8)`,%rsp
|
||
|
|
|
||
|
|
shl \$6,$len
|
||
|
|
sub $inp,$out # re-bias
|
||
|
|
sub $inp,$in0
|
||
|
|
add $inp,$len # end of input
|
||
|
|
|
||
|
|
#mov $inp,$_inp # saved later
|
||
|
|
#mov $out,$_out # kept in $offload
|
||
|
|
mov $len,$_end
|
||
|
|
#mov $key,$_key # remains resident in $inp register
|
||
|
|
mov $ivp,$_ivp
|
||
|
|
mov $ctx,$_ctx
|
||
|
|
mov $in0,$_in0
|
||
|
|
mov %r11,$_rsp
|
||
|
|
___
|
||
|
|
$code.=<<___ if ($win64);
|
||
|
|
movaps %xmm6,`$framesz+16*0`(%rsp)
|
||
|
|
movaps %xmm7,`$framesz+16*1`(%rsp)
|
||
|
|
movaps %xmm8,`$framesz+16*2`(%rsp)
|
||
|
|
movaps %xmm9,`$framesz+16*3`(%rsp)
|
||
|
|
movaps %xmm10,`$framesz+16*4`(%rsp)
|
||
|
|
movaps %xmm11,`$framesz+16*5`(%rsp)
|
||
|
|
movaps %xmm12,`$framesz+16*6`(%rsp)
|
||
|
|
movaps %xmm13,`$framesz+16*7`(%rsp)
|
||
|
|
movaps %xmm14,`$framesz+16*8`(%rsp)
|
||
|
|
movaps %xmm15,`$framesz+16*9`(%rsp)
|
||
|
|
___
|
||
|
|
$code.=<<___;
|
||
|
|
.Lprologue_avx2:
|
||
|
|
vzeroall
|
||
|
|
|
||
|
|
mov $inp,%r13 # borrow $a0
|
||
|
|
vpinsrq \$1,$out,$offload,$offload
|
||
|
|
lea 0x80($key),$inp # size optimization, reassign
|
||
|
|
lea $TABLE+`$SZ*2*$rounds+32`(%rip),%r12 # borrow $a4
|
||
|
|
mov 0xf0-0x80($inp),%r14d # rounds, borrow $a1
|
||
|
|
mov $ctx,%r15 # borrow $a2
|
||
|
|
mov $in0,%rsi # borrow $a3
|
||
|
|
vmovdqu ($ivp),$iv # load IV
|
||
|
|
lea -9(%r14),%r14
|
||
|
|
|
||
|
|
vmovdqa 0x00(%r12,%r14,8),$mask14
|
||
|
|
vmovdqa 0x10(%r12,%r14,8),$mask12
|
||
|
|
vmovdqa 0x20(%r12,%r14,8),$mask10
|
||
|
|
|
||
|
|
sub \$-16*$SZ,%r13 # inp++, size optimization
|
||
|
|
mov $SZ*0(%r15),$A
|
||
|
|
xor %r12,%r12 # borrow $a0
|
||
|
|
mov $SZ*1(%r15),$B
|
||
|
|
cmp $len,%r13 # $_end
|
||
|
|
mov $SZ*2(%r15),$C
|
||
|
|
sete %r12b
|
||
|
|
mov $SZ*3(%r15),$D
|
||
|
|
mov $SZ*4(%r15),$E
|
||
|
|
mov $SZ*5(%r15),$F
|
||
|
|
mov $SZ*6(%r15),$G
|
||
|
|
mov $SZ*7(%r15),$H
|
||
|
|
vmovdqu 0x00-0x80($inp),$roundkey
|
||
|
|
___
|
||
|
|
if ($SZ==4) { # SHA256
|
||
|
|
my @X = map("%ymm$_",(0..3));
|
||
|
|
my ($t0,$t1,$t2,$t3) = map("%ymm$_",(4..7));
|
||
|
|
|
||
|
|
$code.=<<___;
|
||
|
|
jmp .Loop_avx2
|
||
|
|
.align 16
|
||
|
|
.Loop_avx2:
|
||
|
|
shl \$`log(16*$SZ)/log(2)`,%r12
|
||
|
|
vmovdqa $TABLE+`$SZ*2*$rounds`(%rip),$t3
|
||
|
|
neg %r12
|
||
|
|
vmovdqu -16*$SZ+0(%rsi,%r13),%xmm0
|
||
|
|
add %rsi,%r12 # next or same input block
|
||
|
|
vmovdqu -16*$SZ+16(%rsi,%r13),%xmm1
|
||
|
|
vmovdqu -16*$SZ+32(%rsi,%r13),%xmm2
|
||
|
|
vmovdqu -16*$SZ+48(%rsi,%r13),%xmm3
|
||
|
|
|
||
|
|
vinserti128 \$1,(%r12,%r13),@X[0],@X[0]
|
||
|
|
vinserti128 \$1,16(%r12,%r13),@X[1],@X[1]
|
||
|
|
vpshufb $t3,@X[0],@X[0]
|
||
|
|
vinserti128 \$1,32(%r12,%r13),@X[2],@X[2]
|
||
|
|
vpshufb $t3,@X[1],@X[1]
|
||
|
|
vinserti128 \$1,48(%r12,%r13),@X[3],@X[3]
|
||
|
|
|
||
|
|
lea $TABLE(%rip),$Tbl
|
||
|
|
vpshufb $t3,@X[2],@X[2]
|
||
|
|
lea -16*$SZ(%r13),%r13
|
||
|
|
vpaddd 0x00($Tbl),@X[0],$t0
|
||
|
|
vpshufb $t3,@X[3],@X[3]
|
||
|
|
vpaddd 0x20($Tbl),@X[1],$t1
|
||
|
|
vpaddd 0x40($Tbl),@X[2],$t2
|
||
|
|
vpaddd 0x60($Tbl),@X[3],$t3
|
||
|
|
vmovdqa $t0,0x00(%rsp)
|
||
|
|
xor $a1,$a1
|
||
|
|
vmovdqa $t1,0x20(%rsp)
|
||
|
|
lea -$PUSH8(%rsp),%rsp
|
||
|
|
mov $B,$a3
|
||
|
|
vmovdqa $t2,0x00(%rsp)
|
||
|
|
xor $C,$a3 # magic
|
||
|
|
vmovdqa $t3,0x20(%rsp)
|
||
|
|
mov $F,$a4
|
||
|
|
sub \$-16*2*$SZ,$Tbl # size optimization
|
||
|
|
jmp .Lavx2_00_47
|
||
|
|
|
||
|
|
.align 16
|
||
|
|
.Lavx2_00_47:
|
||
|
|
vmovdqu (%r13),$inout
|
||
|
|
vpinsrq \$0,%r13,$offload,$offload
|
||
|
|
___
|
||
|
|
|
||
|
|
sub AVX2_256_00_47 () {
|
||
|
|
my $j = shift;
|
||
|
|
my $body = shift;
|
||
|
|
my @X = @_;
|
||
|
|
my @insns = (&$body,&$body,&$body,&$body); # 96 instructions
|
||
|
|
my $base = "+2*$PUSH8(%rsp)";
|
||
|
|
|
||
|
|
&lea ("%rsp","-$PUSH8(%rsp)") if (($j%2)==0);
|
||
|
|
foreach (Xupdate_256_AVX()) { # 29 instructions
|
||
|
|
eval;
|
||
|
|
eval(shift(@insns));
|
||
|
|
eval(shift(@insns));
|
||
|
|
eval(shift(@insns));
|
||
|
|
}
|
||
|
|
&vpaddd ($t2,@X[0],16*2*$j."($Tbl)");
|
||
|
|
foreach (@insns) { eval; } # remaining instructions
|
||
|
|
&vmovdqa ((32*$j)%$PUSH8."(%rsp)",$t2);
|
||
|
|
}
|
||
|
|
$aesni_cbc_idx=0;
|
||
|
|
for ($i=0,$j=0; $j<4; $j++) {
|
||
|
|
&AVX2_256_00_47($j,\&bodyx_00_15,@X);
|
||
|
|
push(@X,shift(@X)); # rotate(@X)
|
||
|
|
}
|
||
|
|
&vmovq ("%r13",$offload); # borrow $a0
|
||
|
|
&vpextrq ("%r15",$offload,1); # borrow $a2
|
||
|
|
&vpand ($temp,$temp,$mask14);
|
||
|
|
&vpor ($iv,$iv,$temp);
|
||
|
|
&vmovdqu ("(%r15,%r13)",$iv); # write output
|
||
|
|
&lea ("%r13","16(%r13)"); # inp++
|
||
|
|
|
||
|
|
&lea ($Tbl,16*2*$SZ."($Tbl)");
|
||
|
|
&cmpb (($SZ-1)."($Tbl)",0);
|
||
|
|
&jne (".Lavx2_00_47");
|
||
|
|
|
||
|
|
&vmovdqu ($inout,"(%r13)");
|
||
|
|
&vpinsrq ($offload,$offload,"%r13",0);
|
||
|
|
|
||
|
|
$aesni_cbc_idx=0;
|
||
|
|
for ($i=0; $i<16; ) {
|
||
|
|
my $base=$i<8?"+$PUSH8(%rsp)":"(%rsp)";
|
||
|
|
foreach(bodyx_00_15()) { eval; }
|
||
|
|
}
|
||
|
|
}
|
||
|
|
$code.=<<___;
|
||
|
|
vpextrq \$1,$offload,%r12 # $_out, borrow $a4
|
||
|
|
vmovq $offload,%r13 # $_inp, borrow $a0
|
||
|
|
mov `2*$SZ*$rounds+5*8`(%rsp),%r15 # $_ctx, borrow $a2
|
||
|
|
add $a1,$A
|
||
|
|
lea `2*$SZ*($rounds-8)`(%rsp),$Tbl
|
||
|
|
|
||
|
|
vpand $mask14,$temp,$temp
|
||
|
|
vpor $temp,$iv,$iv
|
||
|
|
vmovdqu $iv,(%r12,%r13) # write output
|
||
|
|
lea 16(%r13),%r13
|
||
|
|
|
||
|
|
add $SZ*0(%r15),$A
|
||
|
|
add $SZ*1(%r15),$B
|
||
|
|
add $SZ*2(%r15),$C
|
||
|
|
add $SZ*3(%r15),$D
|
||
|
|
add $SZ*4(%r15),$E
|
||
|
|
add $SZ*5(%r15),$F
|
||
|
|
add $SZ*6(%r15),$G
|
||
|
|
add $SZ*7(%r15),$H
|
||
|
|
|
||
|
|
mov $A,$SZ*0(%r15)
|
||
|
|
mov $B,$SZ*1(%r15)
|
||
|
|
mov $C,$SZ*2(%r15)
|
||
|
|
mov $D,$SZ*3(%r15)
|
||
|
|
mov $E,$SZ*4(%r15)
|
||
|
|
mov $F,$SZ*5(%r15)
|
||
|
|
mov $G,$SZ*6(%r15)
|
||
|
|
mov $H,$SZ*7(%r15)
|
||
|
|
|
||
|
|
cmp `$PUSH8+2*8`($Tbl),%r13 # $_end
|
||
|
|
je .Ldone_avx2
|
||
|
|
|
||
|
|
xor $a1,$a1
|
||
|
|
mov $B,$a3
|
||
|
|
mov $F,$a4
|
||
|
|
xor $C,$a3 # magic
|
||
|
|
jmp .Lower_avx2
|
||
|
|
.align 16
|
||
|
|
.Lower_avx2:
|
||
|
|
vmovdqu (%r13),$inout
|
||
|
|
vpinsrq \$0,%r13,$offload,$offload
|
||
|
|
___
|
||
|
|
$aesni_cbc_idx=0;
|
||
|
|
for ($i=0; $i<16; ) {
|
||
|
|
my $base="+16($Tbl)";
|
||
|
|
foreach(bodyx_00_15()) { eval; }
|
||
|
|
&lea ($Tbl,"-$PUSH8($Tbl)") if ($i==8);
|
||
|
|
}
|
||
|
|
$code.=<<___;
|
||
|
|
vmovq $offload,%r13 # borrow $a0
|
||
|
|
vpextrq \$1,$offload,%r15 # borrow $a2
|
||
|
|
vpand $mask14,$temp,$temp
|
||
|
|
vpor $temp,$iv,$iv
|
||
|
|
lea -$PUSH8($Tbl),$Tbl
|
||
|
|
vmovdqu $iv,(%r15,%r13) # write output
|
||
|
|
lea 16(%r13),%r13 # inp++
|
||
|
|
cmp %rsp,$Tbl
|
||
|
|
jae .Lower_avx2
|
||
|
|
|
||
|
|
mov `2*$SZ*$rounds+5*8`(%rsp),%r15 # $_ctx, borrow $a2
|
||
|
|
lea 16*$SZ(%r13),%r13
|
||
|
|
mov `2*$SZ*$rounds+6*8`(%rsp),%rsi # $_in0, borrow $a3
|
||
|
|
add $a1,$A
|
||
|
|
lea `2*$SZ*($rounds-8)`(%rsp),%rsp
|
||
|
|
|
||
|
|
add $SZ*0(%r15),$A
|
||
|
|
add $SZ*1(%r15),$B
|
||
|
|
add $SZ*2(%r15),$C
|
||
|
|
add $SZ*3(%r15),$D
|
||
|
|
add $SZ*4(%r15),$E
|
||
|
|
add $SZ*5(%r15),$F
|
||
|
|
add $SZ*6(%r15),$G
|
||
|
|
xor %r12,%r12
|
||
|
|
add $SZ*7(%r15),$H
|
||
|
|
|
||
|
|
cmp $_end,%r13
|
||
|
|
|
||
|
|
mov $A,$SZ*0(%r15)
|
||
|
|
mov $B,$SZ*1(%r15)
|
||
|
|
mov $C,$SZ*2(%r15)
|
||
|
|
mov $D,$SZ*3(%r15)
|
||
|
|
mov $E,$SZ*4(%r15)
|
||
|
|
mov $F,$SZ*5(%r15)
|
||
|
|
mov $G,$SZ*6(%r15)
|
||
|
|
mov $H,$SZ*7(%r15)
|
||
|
|
|
||
|
|
sete %r12b
|
||
|
|
jbe .Loop_avx2
|
||
|
|
lea (%rsp),$Tbl
|
||
|
|
|
||
|
|
.Ldone_avx2:
|
||
|
|
lea ($Tbl),%rsp
|
||
|
|
mov $_ivp,$ivp
|
||
|
|
mov $_rsp,%rsi
|
||
|
|
vmovdqu $iv,($ivp) # output IV
|
||
|
|
vzeroall
|
||
|
|
___
|
||
|
|
$code.=<<___ if ($win64);
|
||
|
|
movaps `$framesz+16*0`(%rsp),%xmm6
|
||
|
|
movaps `$framesz+16*1`(%rsp),%xmm7
|
||
|
|
movaps `$framesz+16*2`(%rsp),%xmm8
|
||
|
|
movaps `$framesz+16*3`(%rsp),%xmm9
|
||
|
|
movaps `$framesz+16*4`(%rsp),%xmm10
|
||
|
|
movaps `$framesz+16*5`(%rsp),%xmm11
|
||
|
|
movaps `$framesz+16*6`(%rsp),%xmm12
|
||
|
|
movaps `$framesz+16*7`(%rsp),%xmm13
|
||
|
|
movaps `$framesz+16*8`(%rsp),%xmm14
|
||
|
|
movaps `$framesz+16*9`(%rsp),%xmm15
|
||
|
|
___
|
||
|
|
$code.=<<___;
|
||
|
|
mov (%rsi),%r15
|
||
|
|
mov 8(%rsi),%r14
|
||
|
|
mov 16(%rsi),%r13
|
||
|
|
mov 24(%rsi),%r12
|
||
|
|
mov 32(%rsi),%rbp
|
||
|
|
mov 40(%rsi),%rbx
|
||
|
|
lea 48(%rsi),%rsp
|
||
|
|
.Lepilogue_avx2:
|
||
|
|
ret
|
||
|
|
.size ${func}_avx2,.-${func}_avx2
|
||
|
|
___
|
||
|
|
}}
|
||
|
|
}}}}}
|
||
|
|
|
||
|
|
# EXCEPTION_DISPOSITION handler (EXCEPTION_RECORD *rec,ULONG64 frame,
|
||
|
|
# CONTEXT *context,DISPATCHER_CONTEXT *disp)
|
||
|
|
if ($win64) {
|
||
|
|
$rec="%rcx";
|
||
|
|
$frame="%rdx";
|
||
|
|
$context="%r8";
|
||
|
|
$disp="%r9";
|
||
|
|
|
||
|
|
$code.=<<___ if ($avx);
|
||
|
|
.extern __imp_RtlVirtualUnwind
|
||
|
|
.type se_handler,\@abi-omnipotent
|
||
|
|
.align 16
|
||
|
|
se_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->HanderlData
|
||
|
|
|
||
|
|
mov 0(%r11),%r10d # HandlerData[0]
|
||
|
|
lea (%rsi,%r10),%r10 # prologue label
|
||
|
|
cmp %r10,%rbx # context->Rip<prologue label
|
||
|
|
jb .Lin_prologue
|
||
|
|
|
||
|
|
mov 152($context),%rax # pull context->Rsp
|
||
|
|
|
||
|
|
mov 4(%r11),%r10d # HandlerData[1]
|
||
|
|
lea (%rsi,%r10),%r10 # epilogue label
|
||
|
|
cmp %r10,%rbx # context->Rip>=epilogue label
|
||
|
|
jae .Lin_prologue
|
||
|
|
___
|
||
|
|
$code.=<<___ if ($avx>1);
|
||
|
|
lea .Lavx2_shortcut(%rip),%r10
|
||
|
|
cmp %r10,%rbx # context->Rip<avx2_shortcut
|
||
|
|
jb .Lnot_in_avx2
|
||
|
|
|
||
|
|
and \$-256*$SZ,%rax
|
||
|
|
add \$`2*$SZ*($rounds-8)`,%rax
|
||
|
|
.Lnot_in_avx2:
|
||
|
|
___
|
||
|
|
$code.=<<___;
|
||
|
|
mov %rax,%rsi # put aside Rsp
|
||
|
|
mov 16*$SZ+7*8(%rax),%rax # pull $_rsp
|
||
|
|
lea 48(%rax),%rax
|
||
|
|
|
||
|
|
mov -8(%rax),%rbx
|
||
|
|
mov -16(%rax),%rbp
|
||
|
|
mov -24(%rax),%r12
|
||
|
|
mov -32(%rax),%r13
|
||
|
|
mov -40(%rax),%r14
|
||
|
|
mov -48(%rax),%r15
|
||
|
|
mov %rbx,144($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($context) # restore context->R15
|
||
|
|
|
||
|
|
lea .Lepilogue(%rip),%r10
|
||
|
|
cmp %r10,%rbx
|
||
|
|
jb .Lin_prologue # non-AVX code
|
||
|
|
|
||
|
|
lea 16*$SZ+8*8(%rsi),%rsi # Xmm6- save area
|
||
|
|
lea 512($context),%rdi # &context.Xmm6
|
||
|
|
mov \$20,%ecx
|
||
|
|
.long 0xa548f3fc # cld; rep movsq
|
||
|
|
|
||
|
|
.Lin_prologue:
|
||
|
|
mov 8(%rax),%rdi
|
||
|
|
mov 16(%rax),%rsi
|
||
|
|
mov %rax,152($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 $disp,%rsi
|
||
|
|
xor %rcx,%rcx # arg1, UNW_FLAG_NHANDLER
|
||
|
|
mov 8(%rsi),%rdx # arg2, disp->ImageBase
|
||
|
|
mov 0(%rsi),%r8 # arg3, disp->ControlPc
|
||
|
|
mov 16(%rsi),%r9 # arg4, disp->FunctionEntry
|
||
|
|
mov 40(%rsi),%r10 # disp->ContextRecord
|
||
|
|
lea 56(%rsi),%r11 # &disp->HandlerData
|
||
|
|
lea 24(%rsi),%r12 # &disp->EstablisherFrame
|
||
|
|
mov %r10,32(%rsp) # arg5
|
||
|
|
mov %r11,40(%rsp) # arg6
|
||
|
|
mov %r12,48(%rsp) # arg7
|
||
|
|
mov %rcx,56(%rsp) # arg8, (NULL)
|
||
|
|
call *__imp_RtlVirtualUnwind(%rip)
|
||
|
|
|
||
|
|
mov \$1,%eax # ExceptionContinueSearch
|
||
|
|
add \$64,%rsp
|
||
|
|
popfq
|
||
|
|
pop %r15
|
||
|
|
pop %r14
|
||
|
|
pop %r13
|
||
|
|
pop %r12
|
||
|
|
pop %rbp
|
||
|
|
pop %rbx
|
||
|
|
pop %rdi
|
||
|
|
pop %rsi
|
||
|
|
ret
|
||
|
|
.size se_handler,.-se_handler
|
||
|
|
|
||
|
|
.section .pdata
|
||
|
|
.rva .LSEH_begin_${func}_xop
|
||
|
|
.rva .LSEH_end_${func}_xop
|
||
|
|
.rva .LSEH_info_${func}_xop
|
||
|
|
|
||
|
|
.rva .LSEH_begin_${func}_avx
|
||
|
|
.rva .LSEH_end_${func}_avx
|
||
|
|
.rva .LSEH_info_${func}_avx
|
||
|
|
___
|
||
|
|
$code.=<<___ if ($avx>1);
|
||
|
|
.rva .LSEH_begin_${func}_avx2
|
||
|
|
.rva .LSEH_end_${func}_avx2
|
||
|
|
.rva .LSEH_info_${func}_avx2
|
||
|
|
___
|
||
|
|
$code.=<<___ if ($avx);
|
||
|
|
.section .xdata
|
||
|
|
.align 8
|
||
|
|
.LSEH_info_${func}_xop:
|
||
|
|
.byte 9,0,0,0
|
||
|
|
.rva se_handler
|
||
|
|
.rva .Lprologue_xop,.Lepilogue_xop # HandlerData[]
|
||
|
|
|
||
|
|
.LSEH_info_${func}_avx:
|
||
|
|
.byte 9,0,0,0
|
||
|
|
.rva se_handler
|
||
|
|
.rva .Lprologue_avx,.Lepilogue_avx # HandlerData[]
|
||
|
|
___
|
||
|
|
$code.=<<___ if ($avx>1);
|
||
|
|
.LSEH_info_${func}_avx2:
|
||
|
|
.byte 9,0,0,0
|
||
|
|
.rva se_handler
|
||
|
|
.rva .Lprologue_avx2,.Lepilogue_avx2 # HandlerData[]
|
||
|
|
___
|
||
|
|
}
|
||
|
|
|
||
|
|
$code =~ s/\`([^\`]*)\`/eval $1/gem;
|
||
|
|
print $code;
|
||
|
|
close STDOUT;
|