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提交 dea80680 编写于 作者: A Andy Polyakov
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perlasm/sparcv9_modes.pl: "cooperative" optimizations based on suggestions 

from David Miller.
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crypto/perlasm/sparcv9_modes.pl
浏览文件 @ dea80680
#!/usr/bin/env perl
# Specific mode implementations for SPARC T4 modules.
# Specific modes implementations for SPARC Architecture 2011. There
# is T4 dependency though, an ASI value that is not specified in the
# Architecture Manual. But as SPARC universe is rather monocultural,
# we imply that processor capable of executing crypto instructions
# can handle the ASI in question as well. This means that we ought to
# keep eyes open when new processors emerge...
#
# As for above mentioned ASI. It's so called "block initializing
# store" which cancels "read" in "read-update-write" on cache lines.
# This is "cooperative" optimization, as it reduces overall pressure
# on memory interface. Benefits can't be observed/quantified with
# usual benchmarks, on the contrary you can notice that single-thread
# performance for parallelizable modes is ~1.5% worse. Special note
# about commented 'membar' instructions, otherwise recommended by
# manual. Rationale is following. Memory view is consistent from
# viewpoint of processor executing the code even when ASI in question
# is used. If thread on another processor has to access the result,
# its availability would have to be mediated and it can be done only
# through a syncronization operation which would requre ... 'membar'.
# All this based on suggestions from David Miller.
my ($inp,$out,$len,$key,$ivec,$enc)=map("%i$_",(0..5));
my ($ileft,$iright,$ooff,$omask,$ivoff)=map("%l$_",(1..7));
my ($ileft,$iright,$ooff,$omask,$ivoff,$blk_init)=map("%l$_",(0..7));
sub alg_cbc_encrypt_implement {
my ($alg,$bits) = @_;
......@@ -13,6 +32,7 @@ $::code.=<<___;
.align 32
${alg}${bits}_t4_cbc_encrypt:
save %sp, -$::frame, %sp
sub $inp, $out, $blk_init ! $inp!=$out
___
$::code.=<<___ if (!$::evp);
andcc $ivec, 7, $ivoff
......@@ -33,8 +53,9 @@ $::code.=<<___ if ($::evp);
ld [$ivec + 12], %f3
___
$::code.=<<___;
prefetch [$inp], 20
prefetch [$inp + 63], 20
call _${alg}${bits}_load_enckey
srlx $len, 4, $len
and $inp, 7, $ileft
andn $inp, 7, $inp
sll $ileft, 3, $ileft
......@@ -42,9 +63,16 @@ $::code.=<<___;
mov 0xff, $omask
sub $iright, $ileft, $iright
and $out, 7, $ooff
alignaddrl $out, %g0, $out
cmp $len, 127
movrnz $ooff, 0, $blk_init ! if ( $out&7 ||
movleu $::size_t_cc, 0, $blk_init ! $len<128 ||
brnz,pn $blk_init, .L${bits}cbc_enc_blk ! $inp==$out)
srl $omask, $ooff, $omask
alignaddrl $out, %g0, $out
srlx $len, 4, $len
prefetch [$out], 22
.L${bits}_cbc_enc_loop:
ldx [$inp + 0], %o0
brz,pt $ileft, 4f
......@@ -65,6 +93,8 @@ $::code.=<<___;
fxor %f12, %f0, %f0 ! ^= ivec
fxor %f14, %f2, %f2
prefetch [$out + 63], 22
prefetch [$inp + 16+63], 20
call _${alg}${bits}_encrypt_1x
add $inp, 16, $inp
......@@ -138,6 +168,68 @@ $::code.=<<___ if (!$::evp);
orn %g0, $omask, $omask
stda %f8, [$ivec + $omask]0xc0
___
$::code.=<<___;
ret
restore
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
.align 32
.L${bits}cbc_enc_blk:
add $out, $len, $blk_init
and $blk_init, 63, $blk_init ! tail
sub $len, $blk_init, $len
add $blk_init, 15, $blk_init ! round up to 16n
srlx $len, 4, $len
srl $blk_init, 4, $blk_init
.L${bits}_cbc_enc_blk_loop:
ldx [$inp + 0], %o0
brz,pt $ileft, 5f
ldx [$inp + 8], %o1
ldx [$inp + 16], %o2
sllx %o0, $ileft, %o0
srlx %o1, $iright, %g1
sllx %o1, $ileft, %o1
or %g1, %o0, %o0
srlx %o2, $iright, %o2
or %o2, %o1, %o1
5:
xor %g4, %o0, %o0 ! ^= rk[0]
xor %g5, %o1, %o1
movxtod %o0, %f12
movxtod %o1, %f14
fxor %f12, %f0, %f0 ! ^= ivec
fxor %f14, %f2, %f2
prefetch [$inp + 16+63], 20
call _${alg}${bits}_encrypt_1x
add $inp, 16, $inp
sub $len, 1, $len
stda %f0, [$out]0xf2 ! ASI_BLK_INIT, T4-specific
add $out, 8, $out
stda %f2, [$out]0xf2 ! ASI_BLK_INIT, T4-specific
brnz,pt $len, .L${bits}_cbc_enc_blk_loop
add $out, 8, $out
!membar 0x0f
brnz,pt $blk_init, .L${bits}_cbc_enc_loop
mov $blk_init, $len
___
$::code.=<<___ if ($::evp);
st %f0, [$ivec + 0]
st %f1, [$ivec + 4]
st %f2, [$ivec + 8]
st %f3, [$ivec + 12]
___
$::code.=<<___ if (!$::evp);
brnz,pn $ivoff, 3b
nop
std %f0, [$ivec + 0] ! write out ivec
std %f2, [$ivec + 8]
___
$::code.=<<___;
ret
restore
......@@ -154,6 +246,7 @@ $::code.=<<___;
.align 32
${alg}${bits}_t4_cbc_decrypt:
save %sp, -$::frame, %sp
sub $inp, $out, $blk_init ! $inp!=$out
___
$::code.=<<___ if (!$::evp);
andcc $ivec, 7, $ivoff
......@@ -174,9 +267,9 @@ $::code.=<<___ if ($::evp);
ld [$ivec + 12], %f15
___
$::code.=<<___;
prefetch [$inp], 20
prefetch [$inp + 63], 20
call _${alg}${bits}_load_deckey
srlx $len, 4, $len
andcc $len, 1, %g0 ! is number of blocks even?
and $inp, 7, $ileft
andn $inp, 7, $inp
sll $ileft, 3, $ileft
......@@ -184,9 +277,17 @@ $::code.=<<___;
mov 0xff, $omask
sub $iright, $ileft, $iright
and $out, 7, $ooff
cmp $len, 127
movrnz $ooff, 0, $blk_init ! if ( $out&7 ||
movleu $::size_t_cc, 0, $blk_init ! $len<128 ||
brnz,pn $blk_init, .L${bits}cbc_dec_blk ! $inp==$out)
srl $omask, $ooff, $omask
andcc $len, 16, %g0 ! is number of blocks even?
srlx $len, 4, $len
alignaddrl $out, %g0, $out
bz %icc, .L${bits}_cbc_dec_loop2x
srl $omask, $ooff, $omask
prefetch [$out], 22
.L${bits}_cbc_dec_loop:
ldx [$inp + 0], %o0
brz,pt $ileft, 4f
......@@ -205,6 +306,8 @@ $::code.=<<___;
movxtod %o2, %f0
movxtod %o3, %f2
prefetch [$out + 63], 22
prefetch [$inp + 16+63], 20
call _${alg}${bits}_decrypt_1x
add $inp, 16, $inp
......@@ -304,6 +407,8 @@ $::code.=<<___;
movxtod %o4, %f4
movxtod %o5, %f6
prefetch [$out + 63], 22
prefetch [$inp + 32+63], 20
call _${alg}${bits}_decrypt_2x
add $inp, 32, $inp
......@@ -392,6 +497,97 @@ $::code.=<<___ if (!$::evp);
orn %g0, $omask, $omask
stda %f4, [$ivec + $omask]0xc0
___
$::code.=<<___;
ret
restore
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
.align 32
.L${bits}cbc_dec_blk:
add $out, $len, $blk_init
and $blk_init, 63, $blk_init ! tail
sub $len, $blk_init, $len
add $blk_init, 15, $blk_init ! round up to 16n
srlx $len, 4, $len
srl $blk_init, 4, $blk_init
sub $len, 1, $len
add $blk_init, 1, $blk_init
.L${bits}_cbc_dec_blk_loop2x:
ldx [$inp + 0], %o0
ldx [$inp + 8], %o1
ldx [$inp + 16], %o2
brz,pt $ileft, 5f
ldx [$inp + 24], %o3
ldx [$inp + 32], %o4
sllx %o0, $ileft, %o0
srlx %o1, $iright, %g1
or %g1, %o0, %o0
sllx %o1, $ileft, %o1
srlx %o2, $iright, %g1
or %g1, %o1, %o1
sllx %o2, $ileft, %o2
srlx %o3, $iright, %g1
or %g1, %o2, %o2
sllx %o3, $ileft, %o3
srlx %o4, $iright, %o4
or %o4, %o3, %o3
5:
xor %g4, %o0, %o4 ! ^= rk[0]
xor %g5, %o1, %o5
movxtod %o4, %f0
movxtod %o5, %f2
xor %g4, %o2, %o4
xor %g5, %o3, %o5
movxtod %o4, %f4
movxtod %o5, %f6
prefetch [$inp + 32+63], 20
call _${alg}${bits}_decrypt_2x
add $inp, 32, $inp
subcc $len, 2, $len
movxtod %o0, %f8
movxtod %o1, %f10
fxor %f12, %f0, %f0 ! ^= ivec
fxor %f14, %f2, %f2
movxtod %o2, %f12
movxtod %o3, %f14
fxor %f8, %f4, %f4
fxor %f10, %f6, %f6
stda %f0, [$out]0xf2 ! ASI_BLK_INIT, T4-specific
add $out, 8, $out
stda %f2, [$out]0xf2 ! ASI_BLK_INIT, T4-specific
add $out, 8, $out
stda %f4, [$out]0xf2 ! ASI_BLK_INIT, T4-specific
add $out, 8, $out
stda %f6, [$out]0xf2 ! ASI_BLK_INIT, T4-specific
bgu,pt $::size_t_cc, .L${bits}_cbc_dec_blk_loop2x
add $out, 8, $out
add $blk_init, $len, $len
andcc $len, 1, %g0 ! is number of blocks even?
!membar 0x0f
bnz,pt %icc, .L${bits}_cbc_dec_loop
srl $len, 0, $len
brnz,pn $len, .L${bits}_cbc_dec_loop2x
nop
___
$::code.=<<___ if ($::evp);
st %f0, [$ivec + 0]
st %f1, [$ivec + 4]
st %f2, [$ivec + 8]
st %f3, [$ivec + 12]
___
$::code.=<<___ if (!$::evp);
brnz,pn $ivoff, 3b
nop
std %f0, [$ivec + 0] ! write out ivec
std %f2, [$ivec + 8]
___
$::code.=<<___;
ret
restore
......@@ -409,8 +605,10 @@ $::code.=<<___;
${alg}${bits}_t4_ctr32_encrypt:
save %sp, -$::frame, %sp
prefetch [$inp], 20
prefetch [$inp + 63], 20
call _${alg}${bits}_load_enckey
nop
sllx $len, 4, $len
ld [$ivec + 0], %l4 ! counter
ld [$ivec + 4], %l5
......@@ -424,7 +622,7 @@ ${alg}${bits}_t4_ctr32_encrypt:
xor %g1, %g5, %g5
movxtod %g4, %f14 ! most significant 64 bits
andcc $len, 1, %g0 ! is number of blocks even?
sub $inp, $out, $blk_init ! $inp!=$out
and $inp, 7, $ileft
andn $inp, 7, $inp
sll $ileft, 3, $ileft
......@@ -432,9 +630,16 @@ ${alg}${bits}_t4_ctr32_encrypt:
mov 0xff, $omask
sub $iright, $ileft, $iright
and $out, 7, $ooff
cmp $len, 127
movrnz $ooff, 0, $blk_init ! if ( $out&7 ||
movleu $::size_t_cc, 0, $blk_init ! $len<128 ||
brnz,pn $blk_init, .L${bits}_ctr32_blk ! $inp==$out)
srl $omask, $ooff, $omask
andcc $len, 16, %g0 ! is number of blocks even?
alignaddrl $out, %g0, $out
bz %icc, .L${bits}_ctr32_loop2x
srl $omask, $ooff, $omask
srlx $len, 4, $len
.L${bits}_ctr32_loop:
ldx [$inp + 0], %o0
brz,pt $ileft, 4f
......@@ -452,6 +657,8 @@ ${alg}${bits}_t4_ctr32_encrypt:
add %l7, 1, %l7
movxtod %g1, %f2
srl %l7, 0, %l7 ! clruw
prefetch [$out + 63], 22
prefetch [$inp + 16+63], 20
___
$::code.=<<___ if ($alg eq "aes");
aes_eround01 %f16, %f14, %f2, %f4
......@@ -531,7 +738,8 @@ $::code.=<<___;
add %l7, 1, %l7
movxtod %g1, %f6
srl %l7, 0, %l7 ! clruw
prefetch [$out + 63], 22
prefetch [$inp + 32+63], 20
___
$::code.=<<___ if ($alg eq "aes");
aes_eround01 %f16, %f14, %f2, %f8
......@@ -592,6 +800,96 @@ $::code.=<<___;
brnz,pt $len, .L${bits}_ctr32_loop2x+4
orn %g0, $omask, $omask
ret
restore
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
.align 32
.L${bits}_ctr32_blk:
add $out, $len, $blk_init
and $blk_init, 63, $blk_init ! tail
sub $len, $blk_init, $len
add $blk_init, 15, $blk_init ! round up to 16n
srlx $len, 4, $len
srl $blk_init, 4, $blk_init
sub $len, 1, $len
add $blk_init, 1, $blk_init
.L${bits}_ctr32_blk_loop2x:
ldx [$inp + 0], %o0
ldx [$inp + 8], %o1
ldx [$inp + 16], %o2
brz,pt $ileft, 5f
ldx [$inp + 24], %o3
ldx [$inp + 32], %o4
sllx %o0, $ileft, %o0
srlx %o1, $iright, %g1
or %g1, %o0, %o0
sllx %o1, $ileft, %o1
srlx %o2, $iright, %g1
or %g1, %o1, %o1
sllx %o2, $ileft, %o2
srlx %o3, $iright, %g1
or %g1, %o2, %o2
sllx %o3, $ileft, %o3
srlx %o4, $iright, %o4
or %o4, %o3, %o3
5:
xor %g5, %l7, %g1 ! ^= rk[0]
add %l7, 1, %l7
movxtod %g1, %f2
srl %l7, 0, %l7 ! clruw
xor %g5, %l7, %g1
add %l7, 1, %l7
movxtod %g1, %f6
srl %l7, 0, %l7 ! clruw
prefetch [$inp + 32+63], 20
___
$::code.=<<___ if ($alg eq "aes");
aes_eround01 %f16, %f14, %f2, %f8
aes_eround23 %f18, %f14, %f2, %f2
aes_eround01 %f16, %f14, %f6, %f10
aes_eround23 %f18, %f14, %f6, %f6
___
$::code.=<<___ if ($alg eq "cmll");
camellia_f %f16, %f2, %f14, %f2
camellia_f %f16, %f6, %f14, %f6
camellia_f %f18, %f14, %f2, %f0
camellia_f %f18, %f14, %f6, %f4
___
$::code.=<<___;
call _${alg}${bits}_encrypt_2x+16
add $inp, 32, $inp
subcc $len, 2, $len
movxtod %o0, %f8
movxtod %o1, %f10
movxtod %o2, %f12
fxor %f8, %f0, %f0 ! ^= inp
movxtod %o3, %f8
fxor %f10, %f2, %f2
fxor %f12, %f4, %f4
fxor %f8, %f6, %f6
stda %f0, [$out]0xf2 ! ASI_BLK_INIT, T4-specific
add $out, 8, $out
stda %f2, [$out]0xf2 ! ASI_BLK_INIT, T4-specific
add $out, 8, $out
stda %f4, [$out]0xf2 ! ASI_BLK_INIT, T4-specific
add $out, 8, $out
stda %f6, [$out]0xf2 ! ASI_BLK_INIT, T4-specific
bgu,pt $::size_t_cc, .L${bits}_ctr32_blk_loop2x
add $out, 8, $out
add $blk_init, $len, $len
andcc $len, 1, %g0 ! is number of blocks even?
!membar 0x0f
bnz,pt %icc, .L${bits}_ctr32_loop
srl $len, 0, $len
brnz,pn $len, .L${bits}_ctr32_loop2x
nop
ret
restore
.type ${alg}${bits}_t4_ctr32_encrypt,#function
......
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