1#! /usr/bin/env perl 2# Copyright 2014-2016 The OpenSSL Project Authors. All Rights Reserved. 3# 4# Licensed under the OpenSSL license (the "License"). You may not use 5# this file except in compliance with the License. You can obtain a copy 6# in the file LICENSE in the source distribution or at 7# https://www.openssl.org/source/license.html 8 9# 10# ==================================================================== 11# Written by Andy Polyakov <appro@openssl.org> for the OpenSSL 12# project. The module is, however, dual licensed under OpenSSL and 13# CRYPTOGAMS licenses depending on where you obtain it. For further 14# details see http://www.openssl.org/~appro/cryptogams/. 15# ==================================================================== 16# 17# SHA1 for ARMv8. 18# 19# Performance in cycles per processed byte and improvement coefficient 20# over code generated with "default" compiler: 21# 22# hardware-assisted software(*) 23# Apple A7 2.31 4.13 (+14%) 24# Cortex-A53 2.24 8.03 (+97%) 25# Cortex-A57 2.35 7.88 (+74%) 26# Denver 2.13 3.97 (+0%)(**) 27# X-Gene 8.80 (+200%) 28# Mongoose 2.05 6.50 (+160%) 29# 30# (*) Software results are presented mostly for reference purposes. 31# (**) Keep in mind that Denver relies on binary translation, which 32# optimizes compiler output at run-time. 33 34$flavour = shift; 35$output = shift; 36 37$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1; 38( $xlate="${dir}arm-xlate.pl" and -f $xlate ) or 39( $xlate="${dir}../../../perlasm/arm-xlate.pl" and -f $xlate) or 40die "can't locate arm-xlate.pl"; 41 42open OUT,"| \"$^X\" $xlate $flavour $output"; 43*STDOUT=*OUT; 44 45($ctx,$inp,$num)=("x0","x1","x2"); 46@Xw=map("w$_",(3..17,19)); 47@Xx=map("x$_",(3..17,19)); 48@V=($A,$B,$C,$D,$E)=map("w$_",(20..24)); 49($t0,$t1,$t2,$K)=map("w$_",(25..28)); 50 51 52sub BODY_00_19 { 53my ($i,$a,$b,$c,$d,$e)=@_; 54my $j=($i+2)&15; 55 56$code.=<<___ if ($i<15 && !($i&1)); 57 lsr @Xx[$i+1],@Xx[$i],#32 58___ 59$code.=<<___ if ($i<14 && !($i&1)); 60 ldr @Xx[$i+2],[$inp,#`($i+2)*4-64`] 61___ 62$code.=<<___ if ($i<14 && ($i&1)); 63#ifdef __ARMEB__ 64 ror @Xx[$i+1],@Xx[$i+1],#32 65#else 66 rev32 @Xx[$i+1],@Xx[$i+1] 67#endif 68___ 69$code.=<<___ if ($i<14); 70 bic $t0,$d,$b 71 and $t1,$c,$b 72 ror $t2,$a,#27 73 add $d,$d,$K // future e+=K 74 orr $t0,$t0,$t1 75 add $e,$e,$t2 // e+=rot(a,5) 76 ror $b,$b,#2 77 add $d,$d,@Xw[($i+1)&15] // future e+=X[i] 78 add $e,$e,$t0 // e+=F(b,c,d) 79___ 80$code.=<<___ if ($i==19); 81 movz $K,#0xeba1 82 movk $K,#0x6ed9,lsl#16 83___ 84$code.=<<___ if ($i>=14); 85 eor @Xw[$j],@Xw[$j],@Xw[($j+2)&15] 86 bic $t0,$d,$b 87 and $t1,$c,$b 88 ror $t2,$a,#27 89 eor @Xw[$j],@Xw[$j],@Xw[($j+8)&15] 90 add $d,$d,$K // future e+=K 91 orr $t0,$t0,$t1 92 add $e,$e,$t2 // e+=rot(a,5) 93 eor @Xw[$j],@Xw[$j],@Xw[($j+13)&15] 94 ror $b,$b,#2 95 add $d,$d,@Xw[($i+1)&15] // future e+=X[i] 96 add $e,$e,$t0 // e+=F(b,c,d) 97 ror @Xw[$j],@Xw[$j],#31 98___ 99} 100 101sub BODY_40_59 { 102my ($i,$a,$b,$c,$d,$e)=@_; 103my $j=($i+2)&15; 104 105$code.=<<___ if ($i==59); 106 movz $K,#0xc1d6 107 movk $K,#0xca62,lsl#16 108___ 109$code.=<<___; 110 orr $t0,$b,$c 111 and $t1,$b,$c 112 eor @Xw[$j],@Xw[$j],@Xw[($j+2)&15] 113 ror $t2,$a,#27 114 and $t0,$t0,$d 115 add $d,$d,$K // future e+=K 116 eor @Xw[$j],@Xw[$j],@Xw[($j+8)&15] 117 add $e,$e,$t2 // e+=rot(a,5) 118 orr $t0,$t0,$t1 119 ror $b,$b,#2 120 eor @Xw[$j],@Xw[$j],@Xw[($j+13)&15] 121 add $d,$d,@Xw[($i+1)&15] // future e+=X[i] 122 add $e,$e,$t0 // e+=F(b,c,d) 123 ror @Xw[$j],@Xw[$j],#31 124___ 125} 126 127sub BODY_20_39 { 128my ($i,$a,$b,$c,$d,$e)=@_; 129my $j=($i+2)&15; 130 131$code.=<<___ if ($i==39); 132 movz $K,#0xbcdc 133 movk $K,#0x8f1b,lsl#16 134___ 135$code.=<<___ if ($i<78); 136 eor @Xw[$j],@Xw[$j],@Xw[($j+2)&15] 137 eor $t0,$d,$b 138 ror $t2,$a,#27 139 add $d,$d,$K // future e+=K 140 eor @Xw[$j],@Xw[$j],@Xw[($j+8)&15] 141 eor $t0,$t0,$c 142 add $e,$e,$t2 // e+=rot(a,5) 143 ror $b,$b,#2 144 eor @Xw[$j],@Xw[$j],@Xw[($j+13)&15] 145 add $d,$d,@Xw[($i+1)&15] // future e+=X[i] 146 add $e,$e,$t0 // e+=F(b,c,d) 147 ror @Xw[$j],@Xw[$j],#31 148___ 149$code.=<<___ if ($i==78); 150 ldp @Xw[1],@Xw[2],[$ctx] 151 eor $t0,$d,$b 152 ror $t2,$a,#27 153 add $d,$d,$K // future e+=K 154 eor $t0,$t0,$c 155 add $e,$e,$t2 // e+=rot(a,5) 156 ror $b,$b,#2 157 add $d,$d,@Xw[($i+1)&15] // future e+=X[i] 158 add $e,$e,$t0 // e+=F(b,c,d) 159___ 160$code.=<<___ if ($i==79); 161 ldp @Xw[3],@Xw[4],[$ctx,#8] 162 eor $t0,$d,$b 163 ror $t2,$a,#27 164 eor $t0,$t0,$c 165 add $e,$e,$t2 // e+=rot(a,5) 166 ror $b,$b,#2 167 ldr @Xw[5],[$ctx,#16] 168 add $e,$e,$t0 // e+=F(b,c,d) 169___ 170} 171 172$code.=<<___; 173#include <openssl/arm_arch.h> 174 175.text 176 177.extern OPENSSL_armcap_P 178.globl sha1_block_data_order 179.type sha1_block_data_order,%function 180.align 6 181sha1_block_data_order: 182#ifdef __ILP32__ 183 ldrsw x16,.LOPENSSL_armcap_P 184#else 185 ldr x16,.LOPENSSL_armcap_P 186#endif 187 adr x17,.LOPENSSL_armcap_P 188 add x16,x16,x17 189 ldr w16,[x16] 190 tst w16,#ARMV8_SHA1 191 b.ne .Lv8_entry 192 193 stp x29,x30,[sp,#-96]! 194 add x29,sp,#0 195 stp x19,x20,[sp,#16] 196 stp x21,x22,[sp,#32] 197 stp x23,x24,[sp,#48] 198 stp x25,x26,[sp,#64] 199 stp x27,x28,[sp,#80] 200 201 ldp $A,$B,[$ctx] 202 ldp $C,$D,[$ctx,#8] 203 ldr $E,[$ctx,#16] 204 205.Loop: 206 ldr @Xx[0],[$inp],#64 207 movz $K,#0x7999 208 sub $num,$num,#1 209 movk $K,#0x5a82,lsl#16 210#ifdef __ARMEB__ 211 ror $Xx[0],@Xx[0],#32 212#else 213 rev32 @Xx[0],@Xx[0] 214#endif 215 add $E,$E,$K // warm it up 216 add $E,$E,@Xw[0] 217___ 218for($i=0;$i<20;$i++) { &BODY_00_19($i,@V); unshift(@V,pop(@V)); } 219for(;$i<40;$i++) { &BODY_20_39($i,@V); unshift(@V,pop(@V)); } 220for(;$i<60;$i++) { &BODY_40_59($i,@V); unshift(@V,pop(@V)); } 221for(;$i<80;$i++) { &BODY_20_39($i,@V); unshift(@V,pop(@V)); } 222$code.=<<___; 223 add $B,$B,@Xw[2] 224 add $C,$C,@Xw[3] 225 add $A,$A,@Xw[1] 226 add $D,$D,@Xw[4] 227 add $E,$E,@Xw[5] 228 stp $A,$B,[$ctx] 229 stp $C,$D,[$ctx,#8] 230 str $E,[$ctx,#16] 231 cbnz $num,.Loop 232 233 ldp x19,x20,[sp,#16] 234 ldp x21,x22,[sp,#32] 235 ldp x23,x24,[sp,#48] 236 ldp x25,x26,[sp,#64] 237 ldp x27,x28,[sp,#80] 238 ldr x29,[sp],#96 239 ret 240.size sha1_block_data_order,.-sha1_block_data_order 241___ 242{{{ 243my ($ABCD,$E,$E0,$E1)=map("v$_.16b",(0..3)); 244my @MSG=map("v$_.16b",(4..7)); 245my @Kxx=map("v$_.4s",(16..19)); 246my ($W0,$W1)=("v20.4s","v21.4s"); 247my $ABCD_SAVE="v22.16b"; 248 249$code.=<<___; 250.type sha1_block_armv8,%function 251.align 6 252sha1_block_armv8: 253.Lv8_entry: 254 stp x29,x30,[sp,#-16]! 255 add x29,sp,#0 256 257 adr x4,.Lconst 258 eor $E,$E,$E 259 ld1.32 {$ABCD},[$ctx],#16 260 ld1.32 {$E}[0],[$ctx] 261 sub $ctx,$ctx,#16 262 ld1.32 {@Kxx[0]-@Kxx[3]},[x4] 263 264.Loop_hw: 265 ld1 {@MSG[0]-@MSG[3]},[$inp],#64 266 sub $num,$num,#1 267 rev32 @MSG[0],@MSG[0] 268 rev32 @MSG[1],@MSG[1] 269 270 add.i32 $W0,@Kxx[0],@MSG[0] 271 rev32 @MSG[2],@MSG[2] 272 orr $ABCD_SAVE,$ABCD,$ABCD // offload 273 274 add.i32 $W1,@Kxx[0],@MSG[1] 275 rev32 @MSG[3],@MSG[3] 276 sha1h $E1,$ABCD 277 sha1c $ABCD,$E,$W0 // 0 278 add.i32 $W0,@Kxx[$j],@MSG[2] 279 sha1su0 @MSG[0],@MSG[1],@MSG[2] 280___ 281for ($j=0,$i=1;$i<20-3;$i++) { 282my $f=("c","p","m","p")[$i/5]; 283$code.=<<___; 284 sha1h $E0,$ABCD // $i 285 sha1$f $ABCD,$E1,$W1 286 add.i32 $W1,@Kxx[$j],@MSG[3] 287 sha1su1 @MSG[0],@MSG[3] 288___ 289$code.=<<___ if ($i<20-4); 290 sha1su0 @MSG[1],@MSG[2],@MSG[3] 291___ 292 ($E0,$E1)=($E1,$E0); ($W0,$W1)=($W1,$W0); 293 push(@MSG,shift(@MSG)); $j++ if ((($i+3)%5)==0); 294} 295$code.=<<___; 296 sha1h $E0,$ABCD // $i 297 sha1p $ABCD,$E1,$W1 298 add.i32 $W1,@Kxx[$j],@MSG[3] 299 300 sha1h $E1,$ABCD // 18 301 sha1p $ABCD,$E0,$W0 302 303 sha1h $E0,$ABCD // 19 304 sha1p $ABCD,$E1,$W1 305 306 add.i32 $E,$E,$E0 307 add.i32 $ABCD,$ABCD,$ABCD_SAVE 308 309 cbnz $num,.Loop_hw 310 311 st1.32 {$ABCD},[$ctx],#16 312 st1.32 {$E}[0],[$ctx] 313 314 ldr x29,[sp],#16 315 ret 316.size sha1_block_armv8,.-sha1_block_armv8 317.align 6 318.Lconst: 319.long 0x5a827999,0x5a827999,0x5a827999,0x5a827999 //K_00_19 320.long 0x6ed9eba1,0x6ed9eba1,0x6ed9eba1,0x6ed9eba1 //K_20_39 321.long 0x8f1bbcdc,0x8f1bbcdc,0x8f1bbcdc,0x8f1bbcdc //K_40_59 322.long 0xca62c1d6,0xca62c1d6,0xca62c1d6,0xca62c1d6 //K_60_79 323.LOPENSSL_armcap_P: 324#ifdef __ILP32__ 325.long OPENSSL_armcap_P-. 326#else 327.quad OPENSSL_armcap_P-. 328#endif 329.asciz "SHA1 block transform for ARMv8, CRYPTOGAMS by <appro\@openssl.org>" 330.align 2 331.comm OPENSSL_armcap_P,4,4 332___ 333}}} 334 335{ my %opcode = ( 336 "sha1c" => 0x5e000000, "sha1p" => 0x5e001000, 337 "sha1m" => 0x5e002000, "sha1su0" => 0x5e003000, 338 "sha1h" => 0x5e280800, "sha1su1" => 0x5e281800 ); 339 340 sub unsha1 { 341 my ($mnemonic,$arg)=@_; 342 343 $arg =~ m/[qv]([0-9]+)[^,]*,\s*[qv]([0-9]+)[^,]*(?:,\s*[qv]([0-9]+))?/o 344 && 345 sprintf ".inst\t0x%08x\t//%s %s", 346 $opcode{$mnemonic}|$1|($2<<5)|($3<<16), 347 $mnemonic,$arg; 348 } 349} 350 351foreach(split("\n",$code)) { 352 353 s/\`([^\`]*)\`/eval($1)/geo; 354 355 s/\b(sha1\w+)\s+([qv].*)/unsha1($1,$2)/geo; 356 357 s/\.\w?32\b//o and s/\.16b/\.4s/go; 358 m/(ld|st)1[^\[]+\[0\]/o and s/\.4s/\.s/go; 359 360 print $_,"\n"; 361} 362 363close STDOUT; 364