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 (at] 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 # Kryo 1.88 8.00 (+90%) 30 # 31 # (*) Software results are presented mostly for reference purposes. 32 # (**) Keep in mind that Denver relies on binary translation, which 33 # optimizes compiler output at run-time. 34 35 $flavour = shift; 36 $output = shift; 37 38 $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1; 39 ( $xlate="${dir}arm-xlate.pl" and -f $xlate ) or 40 ( $xlate="${dir}../../../perlasm/arm-xlate.pl" and -f $xlate) or 41 die "can't locate arm-xlate.pl"; 42 43 open OUT,"| \"$^X\" $xlate $flavour $output"; 44 *STDOUT=*OUT; 45 46 ($ctx,$inp,$num)=("x0","x1","x2"); 47 @Xw=map("w$_",(3..17,19)); 48 @Xx=map("x$_",(3..17,19)); 49 @V=($A,$B,$C,$D,$E)=map("w$_",(20..24)); 50 ($t0,$t1,$t2,$K)=map("w$_",(25..28)); 51 52 53 sub BODY_00_19 { 54 my ($i,$a,$b,$c,$d,$e)=@_; 55 my $j=($i+2)&15; 56 57 $code.=<<___ if ($i<15 && !($i&1)); 58 lsr @Xx[$i+1],@Xx[$i],#32 59 ___ 60 $code.=<<___ if ($i<14 && !($i&1)); 61 ldr @Xx[$i+2],[$inp,#`($i+2)*4-64`] 62 ___ 63 $code.=<<___ if ($i<14 && ($i&1)); 64 #ifdef __ARMEB__ 65 ror @Xx[$i+1],@Xx[$i+1],#32 66 #else 67 rev32 @Xx[$i+1],@Xx[$i+1] 68 #endif 69 ___ 70 $code.=<<___ if ($i<14); 71 bic $t0,$d,$b 72 and $t1,$c,$b 73 ror $t2,$a,#27 74 add $d,$d,$K // future e+=K 75 orr $t0,$t0,$t1 76 add $e,$e,$t2 // e+=rot(a,5) 77 ror $b,$b,#2 78 add $d,$d,@Xw[($i+1)&15] // future e+=X[i] 79 add $e,$e,$t0 // e+=F(b,c,d) 80 ___ 81 $code.=<<___ if ($i==19); 82 movz $K,#0xeba1 83 movk $K,#0x6ed9,lsl#16 84 ___ 85 $code.=<<___ if ($i>=14); 86 eor @Xw[$j],@Xw[$j],@Xw[($j+2)&15] 87 bic $t0,$d,$b 88 and $t1,$c,$b 89 ror $t2,$a,#27 90 eor @Xw[$j],@Xw[$j],@Xw[($j+8)&15] 91 add $d,$d,$K // future e+=K 92 orr $t0,$t0,$t1 93 add $e,$e,$t2 // e+=rot(a,5) 94 eor @Xw[$j],@Xw[$j],@Xw[($j+13)&15] 95 ror $b,$b,#2 96 add $d,$d,@Xw[($i+1)&15] // future e+=X[i] 97 add $e,$e,$t0 // e+=F(b,c,d) 98 ror @Xw[$j],@Xw[$j],#31 99 ___ 100 } 101 102 sub BODY_40_59 { 103 my ($i,$a,$b,$c,$d,$e)=@_; 104 my $j=($i+2)&15; 105 106 $code.=<<___ if ($i==59); 107 movz $K,#0xc1d6 108 movk $K,#0xca62,lsl#16 109 ___ 110 $code.=<<___; 111 orr $t0,$b,$c 112 and $t1,$b,$c 113 eor @Xw[$j],@Xw[$j],@Xw[($j+2)&15] 114 ror $t2,$a,#27 115 and $t0,$t0,$d 116 add $d,$d,$K // future e+=K 117 eor @Xw[$j],@Xw[$j],@Xw[($j+8)&15] 118 add $e,$e,$t2 // e+=rot(a,5) 119 orr $t0,$t0,$t1 120 ror $b,$b,#2 121 eor @Xw[$j],@Xw[$j],@Xw[($j+13)&15] 122 add $d,$d,@Xw[($i+1)&15] // future e+=X[i] 123 add $e,$e,$t0 // e+=F(b,c,d) 124 ror @Xw[$j],@Xw[$j],#31 125 ___ 126 } 127 128 sub BODY_20_39 { 129 my ($i,$a,$b,$c,$d,$e)=@_; 130 my $j=($i+2)&15; 131 132 $code.=<<___ if ($i==39); 133 movz $K,#0xbcdc 134 movk $K,#0x8f1b,lsl#16 135 ___ 136 $code.=<<___ if ($i<78); 137 eor @Xw[$j],@Xw[$j],@Xw[($j+2)&15] 138 eor $t0,$d,$b 139 ror $t2,$a,#27 140 add $d,$d,$K // future e+=K 141 eor @Xw[$j],@Xw[$j],@Xw[($j+8)&15] 142 eor $t0,$t0,$c 143 add $e,$e,$t2 // e+=rot(a,5) 144 ror $b,$b,#2 145 eor @Xw[$j],@Xw[$j],@Xw[($j+13)&15] 146 add $d,$d,@Xw[($i+1)&15] // future e+=X[i] 147 add $e,$e,$t0 // e+=F(b,c,d) 148 ror @Xw[$j],@Xw[$j],#31 149 ___ 150 $code.=<<___ if ($i==78); 151 ldp @Xw[1],@Xw[2],[$ctx] 152 eor $t0,$d,$b 153 ror $t2,$a,#27 154 add $d,$d,$K // future e+=K 155 eor $t0,$t0,$c 156 add $e,$e,$t2 // e+=rot(a,5) 157 ror $b,$b,#2 158 add $d,$d,@Xw[($i+1)&15] // future e+=X[i] 159 add $e,$e,$t0 // e+=F(b,c,d) 160 ___ 161 $code.=<<___ if ($i==79); 162 ldp @Xw[3],@Xw[4],[$ctx,#8] 163 eor $t0,$d,$b 164 ror $t2,$a,#27 165 eor $t0,$t0,$c 166 add $e,$e,$t2 // e+=rot(a,5) 167 ror $b,$b,#2 168 ldr @Xw[5],[$ctx,#16] 169 add $e,$e,$t0 // e+=F(b,c,d) 170 ___ 171 } 172 173 $code.=<<___; 174 #include <openssl/arm_arch.h> 175 176 .text 177 178 .extern OPENSSL_armcap_P 179 .globl sha1_block_data_order 180 .type sha1_block_data_order,%function 181 .align 6 182 sha1_block_data_order: 183 adrp x16,:pg_hi21:OPENSSL_armcap_P 184 add x16,x16,:lo12:OPENSSL_armcap_P 185 ldr w16,[x16] 186 tst w16,#ARMV8_SHA1 187 b.ne .Lv8_entry 188 189 stp x29,x30,[sp,#-96]! 190 add x29,sp,#0 191 stp x19,x20,[sp,#16] 192 stp x21,x22,[sp,#32] 193 stp x23,x24,[sp,#48] 194 stp x25,x26,[sp,#64] 195 stp x27,x28,[sp,#80] 196 197 ldp $A,$B,[$ctx] 198 ldp $C,$D,[$ctx,#8] 199 ldr $E,[$ctx,#16] 200 201 .Loop: 202 ldr @Xx[0],[$inp],#64 203 movz $K,#0x7999 204 sub $num,$num,#1 205 movk $K,#0x5a82,lsl#16 206 #ifdef __ARMEB__ 207 ror $Xx[0],@Xx[0],#32 208 #else 209 rev32 @Xx[0],@Xx[0] 210 #endif 211 add $E,$E,$K // warm it up 212 add $E,$E,@Xw[0] 213 ___ 214 for($i=0;$i<20;$i++) { &BODY_00_19($i,@V); unshift(@V,pop(@V)); } 215 for(;$i<40;$i++) { &BODY_20_39($i,@V); unshift(@V,pop(@V)); } 216 for(;$i<60;$i++) { &BODY_40_59($i,@V); unshift(@V,pop(@V)); } 217 for(;$i<80;$i++) { &BODY_20_39($i,@V); unshift(@V,pop(@V)); } 218 $code.=<<___; 219 add $B,$B,@Xw[2] 220 add $C,$C,@Xw[3] 221 add $A,$A,@Xw[1] 222 add $D,$D,@Xw[4] 223 add $E,$E,@Xw[5] 224 stp $A,$B,[$ctx] 225 stp $C,$D,[$ctx,#8] 226 str $E,[$ctx,#16] 227 cbnz $num,.Loop 228 229 ldp x19,x20,[sp,#16] 230 ldp x21,x22,[sp,#32] 231 ldp x23,x24,[sp,#48] 232 ldp x25,x26,[sp,#64] 233 ldp x27,x28,[sp,#80] 234 ldr x29,[sp],#96 235 ret 236 .size sha1_block_data_order,.-sha1_block_data_order 237 ___ 238 {{{ 239 my ($ABCD,$E,$E0,$E1)=map("v$_.16b",(0..3)); 240 my @MSG=map("v$_.16b",(4..7)); 241 my @Kxx=map("v$_.4s",(16..19)); 242 my ($W0,$W1)=("v20.4s","v21.4s"); 243 my $ABCD_SAVE="v22.16b"; 244 245 $code.=<<___; 246 .type sha1_block_armv8,%function 247 .align 6 248 sha1_block_armv8: 249 .Lv8_entry: 250 stp x29,x30,[sp,#-16]! 251 add x29,sp,#0 252 253 adrp x4,:pg_hi21:.Lconst 254 add x4,x4,:lo12:.Lconst 255 eor $E,$E,$E 256 ld1.32 {$ABCD},[$ctx],#16 257 ld1.32 {$E}[0],[$ctx] 258 sub $ctx,$ctx,#16 259 ld1.32 {@Kxx[0]-@Kxx[3]},[x4] 260 261 .Loop_hw: 262 ld1 {@MSG[0]-@MSG[3]},[$inp],#64 263 sub $num,$num,#1 264 rev32 @MSG[0],@MSG[0] 265 rev32 @MSG[1],@MSG[1] 266 267 add.i32 $W0,@Kxx[0],@MSG[0] 268 rev32 @MSG[2],@MSG[2] 269 orr $ABCD_SAVE,$ABCD,$ABCD // offload 270 271 add.i32 $W1,@Kxx[0],@MSG[1] 272 rev32 @MSG[3],@MSG[3] 273 sha1h $E1,$ABCD 274 sha1c $ABCD,$E,$W0 // 0 275 add.i32 $W0,@Kxx[$j],@MSG[2] 276 sha1su0 @MSG[0],@MSG[1],@MSG[2] 277 ___ 278 for ($j=0,$i=1;$i<20-3;$i++) { 279 my $f=("c","p","m","p")[$i/5]; 280 $code.=<<___; 281 sha1h $E0,$ABCD // $i 282 sha1$f $ABCD,$E1,$W1 283 add.i32 $W1,@Kxx[$j],@MSG[3] 284 sha1su1 @MSG[0],@MSG[3] 285 ___ 286 $code.=<<___ if ($i<20-4); 287 sha1su0 @MSG[1],@MSG[2],@MSG[3] 288 ___ 289 ($E0,$E1)=($E1,$E0); ($W0,$W1)=($W1,$W0); 290 push(@MSG,shift(@MSG)); $j++ if ((($i+3)%5)==0); 291 } 292 $code.=<<___; 293 sha1h $E0,$ABCD // $i 294 sha1p $ABCD,$E1,$W1 295 add.i32 $W1,@Kxx[$j],@MSG[3] 296 297 sha1h $E1,$ABCD // 18 298 sha1p $ABCD,$E0,$W0 299 300 sha1h $E0,$ABCD // 19 301 sha1p $ABCD,$E1,$W1 302 303 add.i32 $E,$E,$E0 304 add.i32 $ABCD,$ABCD,$ABCD_SAVE 305 306 cbnz $num,.Loop_hw 307 308 st1.32 {$ABCD},[$ctx],#16 309 st1.32 {$E}[0],[$ctx] 310 311 ldr x29,[sp],#16 312 ret 313 .size sha1_block_armv8,.-sha1_block_armv8 314 .section .rodata 315 .align 6 316 .Lconst: 317 .long 0x5a827999,0x5a827999,0x5a827999,0x5a827999 //K_00_19 318 .long 0x6ed9eba1,0x6ed9eba1,0x6ed9eba1,0x6ed9eba1 //K_20_39 319 .long 0x8f1bbcdc,0x8f1bbcdc,0x8f1bbcdc,0x8f1bbcdc //K_40_59 320 .long 0xca62c1d6,0xca62c1d6,0xca62c1d6,0xca62c1d6 //K_60_79 321 .asciz "SHA1 block transform for ARMv8, CRYPTOGAMS by <appro\@openssl.org>" 322 .align 2 323 .comm OPENSSL_armcap_P,4,4 324 .hidden OPENSSL_armcap_P 325 ___ 326 }}} 327 328 { my %opcode = ( 329 "sha1c" => 0x5e000000, "sha1p" => 0x5e001000, 330 "sha1m" => 0x5e002000, "sha1su0" => 0x5e003000, 331 "sha1h" => 0x5e280800, "sha1su1" => 0x5e281800 ); 332 333 sub unsha1 { 334 my ($mnemonic,$arg)=@_; 335 336 $arg =~ m/[qv]([0-9]+)[^,]*,\s*[qv]([0-9]+)[^,]*(?:,\s*[qv]([0-9]+))?/o 337 && 338 sprintf ".inst\t0x%08x\t//%s %s", 339 $opcode{$mnemonic}|$1|($2<<5)|($3<<16), 340 $mnemonic,$arg; 341 } 342 } 343 344 foreach(split("\n",$code)) { 345 346 s/\`([^\`]*)\`/eval($1)/geo; 347 348 s/\b(sha1\w+)\s+([qv].*)/unsha1($1,$2)/geo; 349 350 s/\.\w?32\b//o and s/\.16b/\.4s/go; 351 m/(ld|st)1[^\[]+\[0\]/o and s/\.4s/\.s/go; 352 353 print $_,"\n"; 354 } 355 356 close STDOUT; 357
