| #!/usr/bin/env perl |
| # |
| # ==================================================================== |
| # Written by Andy Polyakov <appro@openssl.org> for the OpenSSL |
| # project. The module is, however, dual licensed under OpenSSL and |
| # CRYPTOGAMS licenses depending on where you obtain it. For further |
| # details see http://www.openssl.org/~appro/cryptogams/. |
| # ==================================================================== |
| # |
| # SHA1 for ARMv8. |
| # |
| # Performance in cycles per processed byte and improvement coefficient |
| # over code generated with "default" compiler: |
| # |
| # hardware-assisted software(*) |
| # Apple A7 2.31 4.13 (+14%) |
| # Cortex-A53 2.24 8.03 (+97%) |
| # Cortex-A57 2.35 7.88 (+74%) |
| # Denver 2.13 3.97 (+0%)(**) |
| # X-Gene 8.80 (+200%) |
| # |
| # (*) Software results are presented mostly for reference purposes. |
| # (**) Keep in mind that Denver relies on binary translation, which |
| # optimizes compiler output at run-time. |
| |
| $flavour = shift; |
| $output = shift; |
| |
| $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1; |
| ( $xlate="${dir}arm-xlate.pl" and -f $xlate ) or |
| ( $xlate="${dir}../../perlasm/arm-xlate.pl" and -f $xlate) or |
| die "can't locate arm-xlate.pl"; |
| |
| open OUT,"| \"$^X\" $xlate $flavour $output"; |
| *STDOUT=*OUT; |
| |
| ($ctx,$inp,$num)=("x0","x1","x2"); |
| @Xw=map("w$_",(3..17,19)); |
| @Xx=map("x$_",(3..17,19)); |
| @V=($A,$B,$C,$D,$E)=map("w$_",(20..24)); |
| ($t0,$t1,$t2,$K)=map("w$_",(25..28)); |
| |
| |
| sub BODY_00_19 { |
| my ($i,$a,$b,$c,$d,$e)=@_; |
| my $j=($i+2)&15; |
| |
| $code.=<<___ if ($i<15 && !($i&1)); |
| lsr @Xx[$i+1],@Xx[$i],#32 |
| ___ |
| $code.=<<___ if ($i<14 && !($i&1)); |
| ldr @Xx[$i+2],[$inp,#`($i+2)*4-64`] |
| ___ |
| $code.=<<___ if ($i<14 && ($i&1)); |
| #ifdef __ARMEB__ |
| ror @Xx[$i+1],@Xx[$i+1],#32 |
| #else |
| rev32 @Xx[$i+1],@Xx[$i+1] |
| #endif |
| ___ |
| $code.=<<___ if ($i<14); |
| bic $t0,$d,$b |
| and $t1,$c,$b |
| ror $t2,$a,#27 |
| add $d,$d,$K // future e+=K |
| orr $t0,$t0,$t1 |
| add $e,$e,$t2 // e+=rot(a,5) |
| ror $b,$b,#2 |
| add $d,$d,@Xw[($i+1)&15] // future e+=X[i] |
| add $e,$e,$t0 // e+=F(b,c,d) |
| ___ |
| $code.=<<___ if ($i==19); |
| movz $K,#0xeba1 |
| movk $K,#0x6ed9,lsl#16 |
| ___ |
| $code.=<<___ if ($i>=14); |
| eor @Xw[$j],@Xw[$j],@Xw[($j+2)&15] |
| bic $t0,$d,$b |
| and $t1,$c,$b |
| ror $t2,$a,#27 |
| eor @Xw[$j],@Xw[$j],@Xw[($j+8)&15] |
| add $d,$d,$K // future e+=K |
| orr $t0,$t0,$t1 |
| add $e,$e,$t2 // e+=rot(a,5) |
| eor @Xw[$j],@Xw[$j],@Xw[($j+13)&15] |
| ror $b,$b,#2 |
| add $d,$d,@Xw[($i+1)&15] // future e+=X[i] |
| add $e,$e,$t0 // e+=F(b,c,d) |
| ror @Xw[$j],@Xw[$j],#31 |
| ___ |
| } |
| |
| sub BODY_40_59 { |
| my ($i,$a,$b,$c,$d,$e)=@_; |
| my $j=($i+2)&15; |
| |
| $code.=<<___ if ($i==59); |
| movz $K,#0xc1d6 |
| movk $K,#0xca62,lsl#16 |
| ___ |
| $code.=<<___; |
| orr $t0,$b,$c |
| and $t1,$b,$c |
| eor @Xw[$j],@Xw[$j],@Xw[($j+2)&15] |
| ror $t2,$a,#27 |
| and $t0,$t0,$d |
| add $d,$d,$K // future e+=K |
| eor @Xw[$j],@Xw[$j],@Xw[($j+8)&15] |
| add $e,$e,$t2 // e+=rot(a,5) |
| orr $t0,$t0,$t1 |
| ror $b,$b,#2 |
| eor @Xw[$j],@Xw[$j],@Xw[($j+13)&15] |
| add $d,$d,@Xw[($i+1)&15] // future e+=X[i] |
| add $e,$e,$t0 // e+=F(b,c,d) |
| ror @Xw[$j],@Xw[$j],#31 |
| ___ |
| } |
| |
| sub BODY_20_39 { |
| my ($i,$a,$b,$c,$d,$e)=@_; |
| my $j=($i+2)&15; |
| |
| $code.=<<___ if ($i==39); |
| movz $K,#0xbcdc |
| movk $K,#0x8f1b,lsl#16 |
| ___ |
| $code.=<<___ if ($i<78); |
| eor @Xw[$j],@Xw[$j],@Xw[($j+2)&15] |
| eor $t0,$d,$b |
| ror $t2,$a,#27 |
| add $d,$d,$K // future e+=K |
| eor @Xw[$j],@Xw[$j],@Xw[($j+8)&15] |
| eor $t0,$t0,$c |
| add $e,$e,$t2 // e+=rot(a,5) |
| ror $b,$b,#2 |
| eor @Xw[$j],@Xw[$j],@Xw[($j+13)&15] |
| add $d,$d,@Xw[($i+1)&15] // future e+=X[i] |
| add $e,$e,$t0 // e+=F(b,c,d) |
| ror @Xw[$j],@Xw[$j],#31 |
| ___ |
| $code.=<<___ if ($i==78); |
| ldp @Xw[1],@Xw[2],[$ctx] |
| eor $t0,$d,$b |
| ror $t2,$a,#27 |
| add $d,$d,$K // future e+=K |
| eor $t0,$t0,$c |
| add $e,$e,$t2 // e+=rot(a,5) |
| ror $b,$b,#2 |
| add $d,$d,@Xw[($i+1)&15] // future e+=X[i] |
| add $e,$e,$t0 // e+=F(b,c,d) |
| ___ |
| $code.=<<___ if ($i==79); |
| ldp @Xw[3],@Xw[4],[$ctx,#8] |
| eor $t0,$d,$b |
| ror $t2,$a,#27 |
| eor $t0,$t0,$c |
| add $e,$e,$t2 // e+=rot(a,5) |
| ror $b,$b,#2 |
| ldr @Xw[5],[$ctx,#16] |
| add $e,$e,$t0 // e+=F(b,c,d) |
| ___ |
| } |
| |
| $code.=<<___; |
| #include <openssl/arm_arch.h> |
| |
| .text |
| |
| .extern OPENSSL_armcap_P |
| .globl sha1_block_data_order |
| .type sha1_block_data_order,%function |
| .align 6 |
| sha1_block_data_order: |
| ldr x16,.LOPENSSL_armcap_P |
| adr x17,.LOPENSSL_armcap_P |
| add x16,x16,x17 |
| ldr w16,[x16] |
| tst w16,#ARMV8_SHA1 |
| b.ne .Lv8_entry |
| |
| stp x29,x30,[sp,#-96]! |
| add x29,sp,#0 |
| stp x19,x20,[sp,#16] |
| stp x21,x22,[sp,#32] |
| stp x23,x24,[sp,#48] |
| stp x25,x26,[sp,#64] |
| stp x27,x28,[sp,#80] |
| |
| ldp $A,$B,[$ctx] |
| ldp $C,$D,[$ctx,#8] |
| ldr $E,[$ctx,#16] |
| |
| .Loop: |
| ldr @Xx[0],[$inp],#64 |
| movz $K,#0x7999 |
| sub $num,$num,#1 |
| movk $K,#0x5a82,lsl#16 |
| #ifdef __ARMEB__ |
| ror $Xx[0],@Xx[0],#32 |
| #else |
| rev32 @Xx[0],@Xx[0] |
| #endif |
| add $E,$E,$K // warm it up |
| add $E,$E,@Xw[0] |
| ___ |
| for($i=0;$i<20;$i++) { &BODY_00_19($i,@V); unshift(@V,pop(@V)); } |
| for(;$i<40;$i++) { &BODY_20_39($i,@V); unshift(@V,pop(@V)); } |
| for(;$i<60;$i++) { &BODY_40_59($i,@V); unshift(@V,pop(@V)); } |
| for(;$i<80;$i++) { &BODY_20_39($i,@V); unshift(@V,pop(@V)); } |
| $code.=<<___; |
| add $B,$B,@Xw[2] |
| add $C,$C,@Xw[3] |
| add $A,$A,@Xw[1] |
| add $D,$D,@Xw[4] |
| add $E,$E,@Xw[5] |
| stp $A,$B,[$ctx] |
| stp $C,$D,[$ctx,#8] |
| str $E,[$ctx,#16] |
| cbnz $num,.Loop |
| |
| ldp x19,x20,[sp,#16] |
| ldp x21,x22,[sp,#32] |
| ldp x23,x24,[sp,#48] |
| ldp x25,x26,[sp,#64] |
| ldp x27,x28,[sp,#80] |
| ldr x29,[sp],#96 |
| ret |
| .size sha1_block_data_order,.-sha1_block_data_order |
| ___ |
| {{{ |
| my ($ABCD,$E,$E0,$E1)=map("v$_.16b",(0..3)); |
| my @MSG=map("v$_.16b",(4..7)); |
| my @Kxx=map("v$_.4s",(16..19)); |
| my ($W0,$W1)=("v20.4s","v21.4s"); |
| my $ABCD_SAVE="v22.16b"; |
| |
| $code.=<<___; |
| .type sha1_block_armv8,%function |
| .align 6 |
| sha1_block_armv8: |
| .Lv8_entry: |
| stp x29,x30,[sp,#-16]! |
| add x29,sp,#0 |
| |
| adr x4,.Lconst |
| eor $E,$E,$E |
| ld1.32 {$ABCD},[$ctx],#16 |
| ld1.32 {$E}[0],[$ctx] |
| sub $ctx,$ctx,#16 |
| ld1.32 {@Kxx[0]-@Kxx[3]},[x4] |
| |
| .Loop_hw: |
| ld1 {@MSG[0]-@MSG[3]},[$inp],#64 |
| sub $num,$num,#1 |
| rev32 @MSG[0],@MSG[0] |
| rev32 @MSG[1],@MSG[1] |
| |
| add.i32 $W0,@Kxx[0],@MSG[0] |
| rev32 @MSG[2],@MSG[2] |
| orr $ABCD_SAVE,$ABCD,$ABCD // offload |
| |
| add.i32 $W1,@Kxx[0],@MSG[1] |
| rev32 @MSG[3],@MSG[3] |
| sha1h $E1,$ABCD |
| sha1c $ABCD,$E,$W0 // 0 |
| add.i32 $W0,@Kxx[$j],@MSG[2] |
| sha1su0 @MSG[0],@MSG[1],@MSG[2] |
| ___ |
| for ($j=0,$i=1;$i<20-3;$i++) { |
| my $f=("c","p","m","p")[$i/5]; |
| $code.=<<___; |
| sha1h $E0,$ABCD // $i |
| sha1$f $ABCD,$E1,$W1 |
| add.i32 $W1,@Kxx[$j],@MSG[3] |
| sha1su1 @MSG[0],@MSG[3] |
| ___ |
| $code.=<<___ if ($i<20-4); |
| sha1su0 @MSG[1],@MSG[2],@MSG[3] |
| ___ |
| ($E0,$E1)=($E1,$E0); ($W0,$W1)=($W1,$W0); |
| push(@MSG,shift(@MSG)); $j++ if ((($i+3)%5)==0); |
| } |
| $code.=<<___; |
| sha1h $E0,$ABCD // $i |
| sha1p $ABCD,$E1,$W1 |
| add.i32 $W1,@Kxx[$j],@MSG[3] |
| |
| sha1h $E1,$ABCD // 18 |
| sha1p $ABCD,$E0,$W0 |
| |
| sha1h $E0,$ABCD // 19 |
| sha1p $ABCD,$E1,$W1 |
| |
| add.i32 $E,$E,$E0 |
| add.i32 $ABCD,$ABCD,$ABCD_SAVE |
| |
| cbnz $num,.Loop_hw |
| |
| st1.32 {$ABCD},[$ctx],#16 |
| st1.32 {$E}[0],[$ctx] |
| |
| ldr x29,[sp],#16 |
| ret |
| .size sha1_block_armv8,.-sha1_block_armv8 |
| .align 6 |
| .Lconst: |
| .long 0x5a827999,0x5a827999,0x5a827999,0x5a827999 //K_00_19 |
| .long 0x6ed9eba1,0x6ed9eba1,0x6ed9eba1,0x6ed9eba1 //K_20_39 |
| .long 0x8f1bbcdc,0x8f1bbcdc,0x8f1bbcdc,0x8f1bbcdc //K_40_59 |
| .long 0xca62c1d6,0xca62c1d6,0xca62c1d6,0xca62c1d6 //K_60_79 |
| .LOPENSSL_armcap_P: |
| .quad OPENSSL_armcap_P-. |
| .asciz "SHA1 block transform for ARMv8, CRYPTOGAMS by <appro\@openssl.org>" |
| .align 2 |
| .comm OPENSSL_armcap_P,4,4 |
| ___ |
| }}} |
| |
| { my %opcode = ( |
| "sha1c" => 0x5e000000, "sha1p" => 0x5e001000, |
| "sha1m" => 0x5e002000, "sha1su0" => 0x5e003000, |
| "sha1h" => 0x5e280800, "sha1su1" => 0x5e281800 ); |
| |
| sub unsha1 { |
| my ($mnemonic,$arg)=@_; |
| |
| $arg =~ m/[qv]([0-9]+)[^,]*,\s*[qv]([0-9]+)[^,]*(?:,\s*[qv]([0-9]+))?/o |
| && |
| sprintf ".inst\t0x%08x\t//%s %s", |
| $opcode{$mnemonic}|$1|($2<<5)|($3<<16), |
| $mnemonic,$arg; |
| } |
| } |
| |
| foreach(split("\n",$code)) { |
| |
| s/\`([^\`]*)\`/eval($1)/geo; |
| |
| s/\b(sha1\w+)\s+([qv].*)/unsha1($1,$2)/geo; |
| |
| s/\.\w?32\b//o and s/\.16b/\.4s/go; |
| m/(ld|st)1[^\[]+\[0\]/o and s/\.4s/\.s/go; |
| |
| print $_,"\n"; |
| } |
| |
| close STDOUT; |