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d364506a
编写于
6月 09, 2010
作者:
A
Andy Polyakov
浏览文件
操作
浏览文件
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电子邮件补丁
差异文件
ghash-x86_64.pl: "528B" variant delivers further >30% improvement.
上级
04e2b793
变更
1
隐藏空白更改
内联
并排
Showing
1 changed file
with
204 addition
and
43 deletion
+204
-43
crypto/modes/asm/ghash-x86_64.pl
crypto/modes/asm/ghash-x86_64.pl
+204
-43
未找到文件。
crypto/modes/asm/ghash-x86_64.pl
浏览文件 @
d364506a
...
...
@@ -7,18 +7,26 @@
# details see http://www.openssl.org/~appro/cryptogams/.
# ====================================================================
#
# March 2010
# March
, June
2010
#
# The module implements "4-bit" GCM GHASH function and underlying
# single multiplication operation in GF(2^128). "4-bit" means that it
# uses 256 bytes per-key table [+128 bytes shared table]. Performance
# results are for streamed GHASH subroutine and are expressed in
# cycles per processed byte, less is better:
# single multiplication operation in GF(2^128). "4-bit" means that
# it uses 256 bytes per-key table [+128 bytes shared table]. GHASH
# function features so called "528B" variant utilizing additional
# 256+16 bytes of per-key storage [+512 bytes shared table].
# Performance results are for this streamed GHASH subroutine and are
# expressed in cycles per processed byte, less is better:
#
# gcc 3.4.x assembler
# gcc 3.4.x
(*)
assembler
#
# Opteron 18.5 10.2 +80%
# Core2 17.5 11.0 +59%
# P4 28.6 14.0 +100%
# Opteron 18.5 7.7 +140%
# Core2 17.5 8.1(**) +115%
#
# (*) comparison is not completely fair, because C results are
# for vanilla "256B" implementation, not "528B";-)
# (**) it's mystery [to me] why Core2 result is not same as for
# Opteron;
# May 2010
#
...
...
@@ -58,9 +66,17 @@ $Htbl="%rsi";
$cnt
=
"
%rcx
";
$rem
=
"
%rdx
";
sub
lo
()
{
my
$r
=
shift
;
$r
=~
s/%[er]([a-d])x/%\1l/
;
$r
=~
s/%[er]([sd]i)/%\1l/
;
sub
LB
()
{
my
$r
=
shift
;
$r
=~
s/%[er]([a-d])x/%\1l/
or
$r
=~
s/%[er]([sd]i)/%\1l/
or
$r
=~
s/%[er](bp)/%\1l/
or
$r
=~
s/%(r[0-9]+)[d]?/%\1b/
;
$r
;
}
sub
AUTOLOAD
()
#
thunk
[
simplified
]
32-
bit
style
perlasm
{
my
$opcode
=
$AUTOLOAD
;
$opcode
=~
s/.*:://
;
my
$arg
=
pop
;
$arg
=
"
\$
$arg
"
if
(
$arg
*
1
eq
$arg
);
$code
.=
"
\t
$opcode
\t
"
.
join
('
,
',
$arg
,
reverse
@
_
)
.
"
\n
";
}
{
my
$N
;
sub
loop
()
{
...
...
@@ -70,13 +86,13 @@ sub lo() { my $r=shift; $r =~ s/%[er]([a-d])x/%\1l/;
$code
.=
<<___;
xor $nlo,$nlo
xor $nhi,$nhi
mov `&
lo("$Zlo")`,`&lo
("$nlo")`
mov `&
lo("$Zlo")`,`&lo
("$nhi")`
shl \$4,`&
lo
("$nlo")`
mov `&
LB("$Zlo")`,`&LB
("$nlo")`
mov `&
LB("$Zlo")`,`&LB
("$nhi")`
shl \$4,`&
LB
("$nlo")`
mov \$14,$cnt
mov 8($Htbl,$nlo),$Zlo
mov ($Htbl,$nlo),$Zhi
and \$0xf0,`&
lo
("$nhi")`
and \$0xf0,`&
LB
("$nhi")`
mov $Zlo,$rem
jmp .Loop$N
...
...
@@ -85,15 +101,15 @@ $code.=<<___;
shr \$4,$Zlo
and \$0xf,$rem
mov $Zhi,$tmp
mov ($inp,$cnt),`&
lo
("$nlo")`
mov ($inp,$cnt),`&
LB
("$nlo")`
shr \$4,$Zhi
xor 8($Htbl,$nhi),$Zlo
shl \$60,$tmp
xor ($Htbl,$nhi),$Zhi
mov `&
lo("$nlo")`,`&lo
("$nhi")`
mov `&
LB("$nlo")`,`&LB
("$nhi")`
xor ($rem_4bit,$rem,8),$Zhi
mov $Zlo,$rem
shl \$4,`&
lo
("$nlo")`
shl \$4,`&
LB
("$nlo")`
xor $tmp,$Zlo
dec $cnt
js .Lbreak$N
...
...
@@ -105,7 +121,7 @@ $code.=<<___;
xor 8($Htbl,$nlo),$Zlo
shl \$60,$tmp
xor ($Htbl,$nlo),$Zhi
and \$0xf0,`&
lo
("$nhi")`
and \$0xf0,`&
LB
("$nhi")`
xor ($rem_4bit,$rem,8),$Zhi
mov $Zlo,$rem
xor $tmp,$Zlo
...
...
@@ -120,7 +136,7 @@ $code.=<<___;
xor 8($Htbl,$nlo),$Zlo
shl \$60,$tmp
xor ($Htbl,$nlo),$Zhi
and \$0xf0,`&
lo
("$nhi")`
and \$0xf0,`&
LB
("$nhi")`
xor ($rem_4bit,$rem,8),$Zhi
mov $Zlo,$rem
xor $tmp,$Zlo
...
...
@@ -170,9 +186,7 @@ ___
# per-function register layout
$inp
=
"
%rdx
";
$len
=
"
%rcx
";
$cnt
=
"
%rbp
";
$rem
=
"
%r12
";
$rem_8bit
=
$rem_4bit
;
$code
.=
<<___;
.globl gcm_ghash_4bit
...
...
@@ -182,33 +196,145 @@ gcm_ghash_4bit:
push %rbx
push %rbp
push %r12
push %r13
push %r14
push %r15
sub \$280,%rsp
.Lghash_prologue:
mov 8($Xi),$Zlo
mov ($Xi),$Zhi
add $inp,$len
lea .Lrem_4bit(%rip),$rem_4bit
.align 4
.Louter_loop:
xor 8($inp),$Zlo
xor ($inp),$Zhi
lea 16($inp),$inp
mov $Zlo,8($Xi)
mov $Zhi,($Xi)
shr \$56,$Zlo
mov $inp,%r14 # reassign couple of args
mov $len,%r15
___
&loop
(
$Xi
);
{
my
$inp
=
"
%r14
";
my
$dat
=
"
%edx
";
my
$len
=
"
%r15
";
my
@nhi
=
("
%ebx
","
%ecx
");
my
@rem
=
("
%r12
","
%r13
");
my
$Hshr4
=
"
%rbp
";
&sub
(
$Htbl
,
-
128
);
# size optimization
&lea
(
$Hshr4
,"
16+128(%rsp)
");
{
my
@lo
=
(
$nlo
,
$nhi
);
my
@hi
=
(
$Zlo
,
$Zhi
);
&xor
(
$dat
,
$dat
);
for
(
$i
=
0
,
$j
=-
2
;
$i
<
18
;
$i
++
,
$j
++
)
{
&mov
("
$j
(%rsp)
",
&LB
(
$dat
))
if
(
$i
>
1
);
&or
(
$lo
[
0
],
$tmp
)
if
(
$i
>
1
);
&mov
(
&LB
(
$dat
),
&LB
(
$lo
[
1
]))
if
(
$i
>
0
&&
$i
<
17
);
&shr
(
$lo
[
1
],
4
)
if
(
$i
>
0
&&
$i
<
17
);
&mov
(
$tmp
,
$hi
[
1
])
if
(
$i
>
0
&&
$i
<
17
);
&shr
(
$hi
[
1
],
4
)
if
(
$i
>
0
&&
$i
<
17
);
&mov
("
8*
$j
(
$Hshr4
)
",
$hi
[
0
])
if
(
$i
>
1
);
&mov
(
$hi
[
0
],"
16*
$i
+0-128(
$Htbl
)
")
if
(
$i
<
16
);
&shl
(
&LB
(
$dat
),
4
)
if
(
$i
>
0
&&
$i
<
17
);
&mov
("
8*
$j
-128(
$Hshr4
)
",
$lo
[
0
])
if
(
$i
>
1
);
&mov
(
$lo
[
0
],"
16*
$i
+8-128(
$Htbl
)
")
if
(
$i
<
16
);
&shl
(
$tmp
,
60
)
if
(
$i
>
0
&&
$i
<
17
);
push
(
@lo
,
shift
(
@lo
));
push
(
@hi
,
shift
(
@hi
));
}
}
&add
(
$Htbl
,
-
128
);
&mov
(
$Zlo
,"
8(
$Xi
)
");
&mov
(
$Zhi
,"
0(
$Xi
)
");
&add
(
$len
,
$inp
);
# pointer to the end of data
&lea
(
$rem_8bit
,"
.Lrem_8bit(%rip)
");
&jmp
("
.Louter_loop
");
$code
.=
"
.align 16
\n
.Louter_loop:
\n
";
&xor
(
$Zhi
,"
(
$inp
)
");
&mov
("
%rdx
","
8(
$inp
)
");
&lea
(
$inp
,"
16(
$inp
)
");
&xor
("
%rdx
",
$Zlo
);
&mov
("
(
$Xi
)
",
$Zhi
);
&mov
("
8(
$Xi
)
","
%rdx
");
&shr
("
%rdx
",
32
);
&xor
(
$nlo
,
$nlo
);
&rol
(
$dat
,
8
);
&mov
(
&LB
(
$nlo
),
&LB
(
$dat
));
&movz
(
$nhi
[
0
],
&LB
(
$dat
));
&shl
(
&LB
(
$nlo
),
4
);
&shr
(
$nhi
[
0
],
4
);
for
(
$j
=
11
,
$i
=
0
;
$i
<
15
;
$i
++
)
{
&rol
(
$dat
,
8
);
&xor
(
$Zlo
,"
8(
$Htbl
,
$nlo
)
")
if
(
$i
>
0
);
&xor
(
$Zhi
,"
(
$Htbl
,
$nlo
)
")
if
(
$i
>
0
);
&mov
(
$Zlo
,"
8(
$Htbl
,
$nlo
)
")
if
(
$i
==
0
);
&mov
(
$Zhi
,"
(
$Htbl
,
$nlo
)
")
if
(
$i
==
0
);
&mov
(
&LB
(
$nlo
),
&LB
(
$dat
));
&xor
(
$Zlo
,
$tmp
)
if
(
$i
>
0
);
&movzw
(
$rem
[
1
],"
(
$rem_8bit
,
$rem
[1],2)
")
if
(
$i
>
0
);
&movz
(
$nhi
[
1
],
&LB
(
$dat
));
&shl
(
&LB
(
$nlo
),
4
);
&movzb
(
$rem
[
0
],"
(%rsp,
$nhi
[0])
");
&shr
(
$nhi
[
1
],
4
)
if
(
$i
<
14
);
&and
(
$nhi
[
1
],
0xf0
)
if
(
$i
==
14
);
&shl
(
$rem
[
1
],
48
)
if
(
$i
>
0
);
&xor
(
$rem
[
0
],
$Zlo
);
&mov
(
$tmp
,
$Zhi
);
&xor
(
$Zhi
,
$rem
[
1
])
if
(
$i
>
0
);
&shr
(
$Zlo
,
8
);
&movz
(
$rem
[
0
],
&LB
(
$rem
[
0
]));
&mov
(
$dat
,"
$j
(
$Xi
)
")
if
(
--
$j
%
4
==
0
);
&shr
(
$Zhi
,
8
);
&xor
(
$Zlo
,"
-128(
$Hshr4
,
$nhi
[0],8)
");
&shl
(
$tmp
,
56
);
&xor
(
$Zhi
,"
(
$Hshr4
,
$nhi
[0],8)
");
unshift
(
@nhi
,
pop
(
@nhi
));
# "rotate" registers
unshift
(
@rem
,
pop
(
@rem
));
}
&movzw
(
$rem
[
1
],"
(
$rem_8bit
,
$rem
[1],2)
");
&xor
(
$Zlo
,"
8(
$Htbl
,
$nlo
)
");
&xor
(
$Zhi
,"
(
$Htbl
,
$nlo
)
");
&shl
(
$rem
[
1
],
48
);
&xor
(
$Zlo
,
$tmp
);
&xor
(
$Zhi
,
$rem
[
1
]);
&movz
(
$rem
[
0
],
&LB
(
$Zlo
));
&shr
(
$Zlo
,
4
);
&mov
(
$tmp
,
$Zhi
);
&shl
(
&LB
(
$rem
[
0
]),
4
);
&shr
(
$Zhi
,
4
);
&xor
(
$Zlo
,"
8(
$Htbl
,
$nhi
[0])
");
&movzw
(
$rem
[
0
],"
(
$rem_8bit
,
$rem
[0],2)
");
&shl
(
$tmp
,
60
);
&xor
(
$Zhi
,"
(
$Htbl
,
$nhi
[0])
");
&xor
(
$Zlo
,
$tmp
);
&shl
(
$rem
[
0
],
48
);
&bswap
(
$Zlo
);
&xor
(
$Zhi
,
$rem
[
0
]);
&bswap
(
$Zhi
);
&cmp
(
$inp
,
$len
);
&jb
("
.Louter_loop
");
}
$code
.=
<<___;
cmp $len,$inp
jb .Louter_loop
mov $Zlo,8($Xi)
mov $Zhi,($Xi)
mov 0(%rsp),%r12
mov 8(%rsp),%rbp
mov 16(%rsp),%rbx
lea 24(%rsp),%rsp
lea 280(%rsp),%rsi
mov 0(%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
.Lghash_epilogue:
ret
.size gcm_ghash_4bit,.-gcm_ghash_4bit
...
...
@@ -506,6 +632,41 @@ $code.=<<___;
.long 0,`0x7080<<16`,0,`0x6CA0<<16`,0,`0x48C0<<16`,0,`0x54E0<<16`
.long 0,`0xE100<<16`,0,`0xFD20<<16`,0,`0xD940<<16`,0,`0xC560<<16`
.long 0,`0x9180<<16`,0,`0x8DA0<<16`,0,`0xA9C0<<16`,0,`0xB5E0<<16`
.type .Lrem_8bit,\@object
.Lrem_8bit:
.value 0x0000,0x01C2,0x0384,0x0246,0x0708,0x06CA,0x048C,0x054E
.value 0x0E10,0x0FD2,0x0D94,0x0C56,0x0918,0x08DA,0x0A9C,0x0B5E
.value 0x1C20,0x1DE2,0x1FA4,0x1E66,0x1B28,0x1AEA,0x18AC,0x196E
.value 0x1230,0x13F2,0x11B4,0x1076,0x1538,0x14FA,0x16BC,0x177E
.value 0x3840,0x3982,0x3BC4,0x3A06,0x3F48,0x3E8A,0x3CCC,0x3D0E
.value 0x3650,0x3792,0x35D4,0x3416,0x3158,0x309A,0x32DC,0x331E
.value 0x2460,0x25A2,0x27E4,0x2626,0x2368,0x22AA,0x20EC,0x212E
.value 0x2A70,0x2BB2,0x29F4,0x2836,0x2D78,0x2CBA,0x2EFC,0x2F3E
.value 0x7080,0x7142,0x7304,0x72C6,0x7788,0x764A,0x740C,0x75CE
.value 0x7E90,0x7F52,0x7D14,0x7CD6,0x7998,0x785A,0x7A1C,0x7BDE
.value 0x6CA0,0x6D62,0x6F24,0x6EE6,0x6BA8,0x6A6A,0x682C,0x69EE
.value 0x62B0,0x6372,0x6134,0x60F6,0x65B8,0x647A,0x663C,0x67FE
.value 0x48C0,0x4902,0x4B44,0x4A86,0x4FC8,0x4E0A,0x4C4C,0x4D8E
.value 0x46D0,0x4712,0x4554,0x4496,0x41D8,0x401A,0x425C,0x439E
.value 0x54E0,0x5522,0x5764,0x56A6,0x53E8,0x522A,0x506C,0x51AE
.value 0x5AF0,0x5B32,0x5974,0x58B6,0x5DF8,0x5C3A,0x5E7C,0x5FBE
.value 0xE100,0xE0C2,0xE284,0xE346,0xE608,0xE7CA,0xE58C,0xE44E
.value 0xEF10,0xEED2,0xEC94,0xED56,0xE818,0xE9DA,0xEB9C,0xEA5E
.value 0xFD20,0xFCE2,0xFEA4,0xFF66,0xFA28,0xFBEA,0xF9AC,0xF86E
.value 0xF330,0xF2F2,0xF0B4,0xF176,0xF438,0xF5FA,0xF7BC,0xF67E
.value 0xD940,0xD882,0xDAC4,0xDB06,0xDE48,0xDF8A,0xDDCC,0xDC0E
.value 0xD750,0xD692,0xD4D4,0xD516,0xD058,0xD19A,0xD3DC,0xD21E
.value 0xC560,0xC4A2,0xC6E4,0xC726,0xC268,0xC3AA,0xC1EC,0xC02E
.value 0xCB70,0xCAB2,0xC8F4,0xC936,0xCC78,0xCDBA,0xCFFC,0xCE3E
.value 0x9180,0x9042,0x9204,0x93C6,0x9688,0x974A,0x950C,0x94CE
.value 0x9F90,0x9E52,0x9C14,0x9DD6,0x9898,0x995A,0x9B1C,0x9ADE
.value 0x8DA0,0x8C62,0x8E24,0x8FE6,0x8AA8,0x8B6A,0x892C,0x88EE
.value 0x83B0,0x8272,0x8034,0x81F6,0x84B8,0x857A,0x873C,0x86FE
.value 0xA9C0,0xA802,0xAA44,0xAB86,0xAEC8,0xAF0A,0xAD4C,0xAC8E
.value 0xA7D0,0xA612,0xA454,0xA596,0xA0D8,0xA11A,0xA35C,0xA29E
.value 0xB5E0,0xB422,0xB664,0xB7A6,0xB2E8,0xB32A,0xB16C,0xB0AE
.value 0xBBF0,0xBA32,0xB874,0xB9B6,0xBCF8,0xBD3A,0xBF7C,0xBEBE
.asciz "GHASH for x86_64, CRYPTOGAMS by <appro\@openssl.org>"
.align 64
___
...
...
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