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