Robert Sloan | 8ff0355 | 2017-06-14 12:40:58 -0700 | [diff] [blame^] | 1 | #! /usr/bin/env perl |
| 2 | # Copyright 2014-2016 The OpenSSL Project Authors. All Rights Reserved. |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 3 | # |
Robert Sloan | 8ff0355 | 2017-06-14 12:40:58 -0700 | [diff] [blame^] | 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 | |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 9 | # ==================================================================== |
| 10 | # Written by Andy Polyakov <appro@openssl.org> for the OpenSSL |
| 11 | # project. The module is, however, dual licensed under OpenSSL and |
| 12 | # CRYPTOGAMS licenses depending on where you obtain it. For further |
| 13 | # details see http://www.openssl.org/~appro/cryptogams/. |
Robert Sloan | 8ff0355 | 2017-06-14 12:40:58 -0700 | [diff] [blame^] | 14 | # |
| 15 | # Permission to use under GPLv2 terms is granted. |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 16 | # ==================================================================== |
| 17 | # |
| 18 | # SHA256/512 for ARMv8. |
| 19 | # |
| 20 | # Performance in cycles per processed byte and improvement coefficient |
| 21 | # over code generated with "default" compiler: |
| 22 | # |
| 23 | # SHA256-hw SHA256(*) SHA512 |
| 24 | # Apple A7 1.97 10.5 (+33%) 6.73 (-1%(**)) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 25 | # Cortex-A53 2.38 15.5 (+115%) 10.0 (+150%(***)) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 26 | # Cortex-A57 2.31 11.6 (+86%) 7.51 (+260%(***)) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 27 | # Denver 2.01 10.5 (+26%) 6.70 (+8%) |
| 28 | # X-Gene 20.0 (+100%) 12.8 (+300%(***)) |
Robert Sloan | 8ff0355 | 2017-06-14 12:40:58 -0700 | [diff] [blame^] | 29 | # Mongoose 2.36 13.0 (+50%) 8.36 (+33%) |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 30 | # |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 31 | # (*) Software SHA256 results are of lesser relevance, presented |
| 32 | # mostly for informational purposes. |
| 33 | # (**) The result is a trade-off: it's possible to improve it by |
| 34 | # 10% (or by 1 cycle per round), but at the cost of 20% loss |
| 35 | # on Cortex-A53 (or by 4 cycles per round). |
| 36 | # (***) Super-impressive coefficients over gcc-generated code are |
| 37 | # indication of some compiler "pathology", most notably code |
| 38 | # generated with -mgeneral-regs-only is significanty faster |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 39 | # and the gap is only 40-90%. |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 40 | |
Robert Sloan | 8ff0355 | 2017-06-14 12:40:58 -0700 | [diff] [blame^] | 41 | $output=pop; |
| 42 | $flavour=pop; |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 43 | |
Robert Sloan | 8ff0355 | 2017-06-14 12:40:58 -0700 | [diff] [blame^] | 44 | if ($flavour && $flavour ne "void") { |
| 45 | $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1; |
| 46 | ( $xlate="${dir}arm-xlate.pl" and -f $xlate ) or |
| 47 | ( $xlate="${dir}../../../perlasm/arm-xlate.pl" and -f $xlate) or |
| 48 | die "can't locate arm-xlate.pl"; |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 49 | |
Robert Sloan | 8ff0355 | 2017-06-14 12:40:58 -0700 | [diff] [blame^] | 50 | open OUT,"| \"$^X\" $xlate $flavour $output"; |
| 51 | *STDOUT=*OUT; |
| 52 | } else { |
| 53 | open STDOUT,">$output"; |
| 54 | } |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 55 | |
David Benjamin | c895d6b | 2016-08-11 13:26:41 -0400 | [diff] [blame] | 56 | if ($output =~ /512/) { |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 57 | $BITS=512; |
| 58 | $SZ=8; |
| 59 | @Sigma0=(28,34,39); |
| 60 | @Sigma1=(14,18,41); |
| 61 | @sigma0=(1, 8, 7); |
| 62 | @sigma1=(19,61, 6); |
| 63 | $rounds=80; |
| 64 | $reg_t="x"; |
David Benjamin | c895d6b | 2016-08-11 13:26:41 -0400 | [diff] [blame] | 65 | } else { |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 66 | $BITS=256; |
| 67 | $SZ=4; |
| 68 | @Sigma0=( 2,13,22); |
| 69 | @Sigma1=( 6,11,25); |
| 70 | @sigma0=( 7,18, 3); |
| 71 | @sigma1=(17,19,10); |
| 72 | $rounds=64; |
| 73 | $reg_t="w"; |
| 74 | } |
| 75 | |
| 76 | $func="sha${BITS}_block_data_order"; |
| 77 | |
| 78 | ($ctx,$inp,$num,$Ktbl)=map("x$_",(0..2,30)); |
| 79 | |
| 80 | @X=map("$reg_t$_",(3..15,0..2)); |
| 81 | @V=($A,$B,$C,$D,$E,$F,$G,$H)=map("$reg_t$_",(20..27)); |
| 82 | ($t0,$t1,$t2,$t3)=map("$reg_t$_",(16,17,19,28)); |
| 83 | |
| 84 | sub BODY_00_xx { |
| 85 | my ($i,$a,$b,$c,$d,$e,$f,$g,$h)=@_; |
| 86 | my $j=($i+1)&15; |
| 87 | my ($T0,$T1,$T2)=(@X[($i-8)&15],@X[($i-9)&15],@X[($i-10)&15]); |
| 88 | $T0=@X[$i+3] if ($i<11); |
| 89 | |
| 90 | $code.=<<___ if ($i<16); |
| 91 | #ifndef __ARMEB__ |
| 92 | rev @X[$i],@X[$i] // $i |
| 93 | #endif |
| 94 | ___ |
| 95 | $code.=<<___ if ($i<13 && ($i&1)); |
| 96 | ldp @X[$i+1],@X[$i+2],[$inp],#2*$SZ |
| 97 | ___ |
| 98 | $code.=<<___ if ($i==13); |
| 99 | ldp @X[14],@X[15],[$inp] |
| 100 | ___ |
| 101 | $code.=<<___ if ($i>=14); |
| 102 | ldr @X[($i-11)&15],[sp,#`$SZ*(($i-11)%4)`] |
| 103 | ___ |
| 104 | $code.=<<___ if ($i>0 && $i<16); |
| 105 | add $a,$a,$t1 // h+=Sigma0(a) |
| 106 | ___ |
| 107 | $code.=<<___ if ($i>=11); |
| 108 | str @X[($i-8)&15],[sp,#`$SZ*(($i-8)%4)`] |
| 109 | ___ |
| 110 | # While ARMv8 specifies merged rotate-n-logical operation such as |
| 111 | # 'eor x,y,z,ror#n', it was found to negatively affect performance |
| 112 | # on Apple A7. The reason seems to be that it requires even 'y' to |
| 113 | # be available earlier. This means that such merged instruction is |
| 114 | # not necessarily best choice on critical path... On the other hand |
| 115 | # Cortex-A5x handles merged instructions much better than disjoint |
| 116 | # rotate and logical... See (**) footnote above. |
| 117 | $code.=<<___ if ($i<15); |
| 118 | ror $t0,$e,#$Sigma1[0] |
| 119 | add $h,$h,$t2 // h+=K[i] |
| 120 | eor $T0,$e,$e,ror#`$Sigma1[2]-$Sigma1[1]` |
| 121 | and $t1,$f,$e |
| 122 | bic $t2,$g,$e |
| 123 | add $h,$h,@X[$i&15] // h+=X[i] |
| 124 | orr $t1,$t1,$t2 // Ch(e,f,g) |
| 125 | eor $t2,$a,$b // a^b, b^c in next round |
| 126 | eor $t0,$t0,$T0,ror#$Sigma1[1] // Sigma1(e) |
| 127 | ror $T0,$a,#$Sigma0[0] |
| 128 | add $h,$h,$t1 // h+=Ch(e,f,g) |
| 129 | eor $t1,$a,$a,ror#`$Sigma0[2]-$Sigma0[1]` |
| 130 | add $h,$h,$t0 // h+=Sigma1(e) |
| 131 | and $t3,$t3,$t2 // (b^c)&=(a^b) |
| 132 | add $d,$d,$h // d+=h |
| 133 | eor $t3,$t3,$b // Maj(a,b,c) |
| 134 | eor $t1,$T0,$t1,ror#$Sigma0[1] // Sigma0(a) |
| 135 | add $h,$h,$t3 // h+=Maj(a,b,c) |
| 136 | ldr $t3,[$Ktbl],#$SZ // *K++, $t2 in next round |
| 137 | //add $h,$h,$t1 // h+=Sigma0(a) |
| 138 | ___ |
| 139 | $code.=<<___ if ($i>=15); |
| 140 | ror $t0,$e,#$Sigma1[0] |
| 141 | add $h,$h,$t2 // h+=K[i] |
| 142 | ror $T1,@X[($j+1)&15],#$sigma0[0] |
| 143 | and $t1,$f,$e |
| 144 | ror $T2,@X[($j+14)&15],#$sigma1[0] |
| 145 | bic $t2,$g,$e |
| 146 | ror $T0,$a,#$Sigma0[0] |
| 147 | add $h,$h,@X[$i&15] // h+=X[i] |
| 148 | eor $t0,$t0,$e,ror#$Sigma1[1] |
| 149 | eor $T1,$T1,@X[($j+1)&15],ror#$sigma0[1] |
| 150 | orr $t1,$t1,$t2 // Ch(e,f,g) |
| 151 | eor $t2,$a,$b // a^b, b^c in next round |
| 152 | eor $t0,$t0,$e,ror#$Sigma1[2] // Sigma1(e) |
| 153 | eor $T0,$T0,$a,ror#$Sigma0[1] |
| 154 | add $h,$h,$t1 // h+=Ch(e,f,g) |
| 155 | and $t3,$t3,$t2 // (b^c)&=(a^b) |
| 156 | eor $T2,$T2,@X[($j+14)&15],ror#$sigma1[1] |
| 157 | eor $T1,$T1,@X[($j+1)&15],lsr#$sigma0[2] // sigma0(X[i+1]) |
| 158 | add $h,$h,$t0 // h+=Sigma1(e) |
| 159 | eor $t3,$t3,$b // Maj(a,b,c) |
| 160 | eor $t1,$T0,$a,ror#$Sigma0[2] // Sigma0(a) |
| 161 | eor $T2,$T2,@X[($j+14)&15],lsr#$sigma1[2] // sigma1(X[i+14]) |
| 162 | add @X[$j],@X[$j],@X[($j+9)&15] |
| 163 | add $d,$d,$h // d+=h |
| 164 | add $h,$h,$t3 // h+=Maj(a,b,c) |
| 165 | ldr $t3,[$Ktbl],#$SZ // *K++, $t2 in next round |
| 166 | add @X[$j],@X[$j],$T1 |
| 167 | add $h,$h,$t1 // h+=Sigma0(a) |
| 168 | add @X[$j],@X[$j],$T2 |
| 169 | ___ |
| 170 | ($t2,$t3)=($t3,$t2); |
| 171 | } |
| 172 | |
| 173 | $code.=<<___; |
Robert Sloan | 8ff0355 | 2017-06-14 12:40:58 -0700 | [diff] [blame^] | 174 | #ifndef __KERNEL__ |
| 175 | # include <openssl/arm_arch.h> |
| 176 | #endif |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 177 | |
| 178 | .text |
| 179 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 180 | .extern OPENSSL_armcap_P |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 181 | .globl $func |
| 182 | .type $func,%function |
| 183 | .align 6 |
| 184 | $func: |
| 185 | ___ |
| 186 | $code.=<<___ if ($SZ==4); |
Robert Sloan | 8ff0355 | 2017-06-14 12:40:58 -0700 | [diff] [blame^] | 187 | #ifndef __KERNEL__ |
| 188 | # ifdef __ILP32__ |
| 189 | ldrsw x16,.LOPENSSL_armcap_P |
| 190 | # else |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 191 | ldr x16,.LOPENSSL_armcap_P |
Robert Sloan | 8ff0355 | 2017-06-14 12:40:58 -0700 | [diff] [blame^] | 192 | # endif |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 193 | adr x17,.LOPENSSL_armcap_P |
| 194 | add x16,x16,x17 |
| 195 | ldr w16,[x16] |
| 196 | tst w16,#ARMV8_SHA256 |
| 197 | b.ne .Lv8_entry |
Robert Sloan | 8ff0355 | 2017-06-14 12:40:58 -0700 | [diff] [blame^] | 198 | #endif |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 199 | ___ |
| 200 | $code.=<<___; |
| 201 | stp x29,x30,[sp,#-128]! |
| 202 | add x29,sp,#0 |
| 203 | |
| 204 | stp x19,x20,[sp,#16] |
| 205 | stp x21,x22,[sp,#32] |
| 206 | stp x23,x24,[sp,#48] |
| 207 | stp x25,x26,[sp,#64] |
| 208 | stp x27,x28,[sp,#80] |
| 209 | sub sp,sp,#4*$SZ |
| 210 | |
| 211 | ldp $A,$B,[$ctx] // load context |
| 212 | ldp $C,$D,[$ctx,#2*$SZ] |
| 213 | ldp $E,$F,[$ctx,#4*$SZ] |
| 214 | add $num,$inp,$num,lsl#`log(16*$SZ)/log(2)` // end of input |
| 215 | ldp $G,$H,[$ctx,#6*$SZ] |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 216 | adr $Ktbl,.LK$BITS |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 217 | stp $ctx,$num,[x29,#96] |
| 218 | |
| 219 | .Loop: |
| 220 | ldp @X[0],@X[1],[$inp],#2*$SZ |
| 221 | ldr $t2,[$Ktbl],#$SZ // *K++ |
| 222 | eor $t3,$B,$C // magic seed |
| 223 | str $inp,[x29,#112] |
| 224 | ___ |
| 225 | for ($i=0;$i<16;$i++) { &BODY_00_xx($i,@V); unshift(@V,pop(@V)); } |
| 226 | $code.=".Loop_16_xx:\n"; |
| 227 | for (;$i<32;$i++) { &BODY_00_xx($i,@V); unshift(@V,pop(@V)); } |
| 228 | $code.=<<___; |
| 229 | cbnz $t2,.Loop_16_xx |
| 230 | |
| 231 | ldp $ctx,$num,[x29,#96] |
| 232 | ldr $inp,[x29,#112] |
| 233 | sub $Ktbl,$Ktbl,#`$SZ*($rounds+1)` // rewind |
| 234 | |
| 235 | ldp @X[0],@X[1],[$ctx] |
| 236 | ldp @X[2],@X[3],[$ctx,#2*$SZ] |
| 237 | add $inp,$inp,#14*$SZ // advance input pointer |
| 238 | ldp @X[4],@X[5],[$ctx,#4*$SZ] |
| 239 | add $A,$A,@X[0] |
| 240 | ldp @X[6],@X[7],[$ctx,#6*$SZ] |
| 241 | add $B,$B,@X[1] |
| 242 | add $C,$C,@X[2] |
| 243 | add $D,$D,@X[3] |
| 244 | stp $A,$B,[$ctx] |
| 245 | add $E,$E,@X[4] |
| 246 | add $F,$F,@X[5] |
| 247 | stp $C,$D,[$ctx,#2*$SZ] |
| 248 | add $G,$G,@X[6] |
| 249 | add $H,$H,@X[7] |
| 250 | cmp $inp,$num |
| 251 | stp $E,$F,[$ctx,#4*$SZ] |
| 252 | stp $G,$H,[$ctx,#6*$SZ] |
| 253 | b.ne .Loop |
| 254 | |
| 255 | ldp x19,x20,[x29,#16] |
| 256 | add sp,sp,#4*$SZ |
| 257 | ldp x21,x22,[x29,#32] |
| 258 | ldp x23,x24,[x29,#48] |
| 259 | ldp x25,x26,[x29,#64] |
| 260 | ldp x27,x28,[x29,#80] |
| 261 | ldp x29,x30,[sp],#128 |
| 262 | ret |
| 263 | .size $func,.-$func |
| 264 | |
| 265 | .align 6 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 266 | .type .LK$BITS,%object |
| 267 | .LK$BITS: |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 268 | ___ |
| 269 | $code.=<<___ if ($SZ==8); |
| 270 | .quad 0x428a2f98d728ae22,0x7137449123ef65cd |
| 271 | .quad 0xb5c0fbcfec4d3b2f,0xe9b5dba58189dbbc |
| 272 | .quad 0x3956c25bf348b538,0x59f111f1b605d019 |
| 273 | .quad 0x923f82a4af194f9b,0xab1c5ed5da6d8118 |
| 274 | .quad 0xd807aa98a3030242,0x12835b0145706fbe |
| 275 | .quad 0x243185be4ee4b28c,0x550c7dc3d5ffb4e2 |
| 276 | .quad 0x72be5d74f27b896f,0x80deb1fe3b1696b1 |
| 277 | .quad 0x9bdc06a725c71235,0xc19bf174cf692694 |
| 278 | .quad 0xe49b69c19ef14ad2,0xefbe4786384f25e3 |
| 279 | .quad 0x0fc19dc68b8cd5b5,0x240ca1cc77ac9c65 |
| 280 | .quad 0x2de92c6f592b0275,0x4a7484aa6ea6e483 |
| 281 | .quad 0x5cb0a9dcbd41fbd4,0x76f988da831153b5 |
| 282 | .quad 0x983e5152ee66dfab,0xa831c66d2db43210 |
| 283 | .quad 0xb00327c898fb213f,0xbf597fc7beef0ee4 |
| 284 | .quad 0xc6e00bf33da88fc2,0xd5a79147930aa725 |
| 285 | .quad 0x06ca6351e003826f,0x142929670a0e6e70 |
| 286 | .quad 0x27b70a8546d22ffc,0x2e1b21385c26c926 |
| 287 | .quad 0x4d2c6dfc5ac42aed,0x53380d139d95b3df |
| 288 | .quad 0x650a73548baf63de,0x766a0abb3c77b2a8 |
| 289 | .quad 0x81c2c92e47edaee6,0x92722c851482353b |
| 290 | .quad 0xa2bfe8a14cf10364,0xa81a664bbc423001 |
| 291 | .quad 0xc24b8b70d0f89791,0xc76c51a30654be30 |
| 292 | .quad 0xd192e819d6ef5218,0xd69906245565a910 |
| 293 | .quad 0xf40e35855771202a,0x106aa07032bbd1b8 |
| 294 | .quad 0x19a4c116b8d2d0c8,0x1e376c085141ab53 |
| 295 | .quad 0x2748774cdf8eeb99,0x34b0bcb5e19b48a8 |
| 296 | .quad 0x391c0cb3c5c95a63,0x4ed8aa4ae3418acb |
| 297 | .quad 0x5b9cca4f7763e373,0x682e6ff3d6b2b8a3 |
| 298 | .quad 0x748f82ee5defb2fc,0x78a5636f43172f60 |
| 299 | .quad 0x84c87814a1f0ab72,0x8cc702081a6439ec |
| 300 | .quad 0x90befffa23631e28,0xa4506cebde82bde9 |
| 301 | .quad 0xbef9a3f7b2c67915,0xc67178f2e372532b |
| 302 | .quad 0xca273eceea26619c,0xd186b8c721c0c207 |
| 303 | .quad 0xeada7dd6cde0eb1e,0xf57d4f7fee6ed178 |
| 304 | .quad 0x06f067aa72176fba,0x0a637dc5a2c898a6 |
| 305 | .quad 0x113f9804bef90dae,0x1b710b35131c471b |
| 306 | .quad 0x28db77f523047d84,0x32caab7b40c72493 |
| 307 | .quad 0x3c9ebe0a15c9bebc,0x431d67c49c100d4c |
| 308 | .quad 0x4cc5d4becb3e42b6,0x597f299cfc657e2a |
| 309 | .quad 0x5fcb6fab3ad6faec,0x6c44198c4a475817 |
| 310 | .quad 0 // terminator |
| 311 | ___ |
| 312 | $code.=<<___ if ($SZ==4); |
| 313 | .long 0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5 |
| 314 | .long 0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5 |
| 315 | .long 0xd807aa98,0x12835b01,0x243185be,0x550c7dc3 |
| 316 | .long 0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174 |
| 317 | .long 0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc |
| 318 | .long 0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da |
| 319 | .long 0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7 |
| 320 | .long 0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967 |
| 321 | .long 0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13 |
| 322 | .long 0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85 |
| 323 | .long 0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3 |
| 324 | .long 0xd192e819,0xd6990624,0xf40e3585,0x106aa070 |
| 325 | .long 0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5 |
| 326 | .long 0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3 |
| 327 | .long 0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208 |
| 328 | .long 0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2 |
| 329 | .long 0 //terminator |
| 330 | ___ |
| 331 | $code.=<<___; |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 332 | .size .LK$BITS,.-.LK$BITS |
Robert Sloan | 8ff0355 | 2017-06-14 12:40:58 -0700 | [diff] [blame^] | 333 | #ifndef __KERNEL__ |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 334 | .align 3 |
| 335 | .LOPENSSL_armcap_P: |
Robert Sloan | 8ff0355 | 2017-06-14 12:40:58 -0700 | [diff] [blame^] | 336 | # ifdef __ILP32__ |
| 337 | .long OPENSSL_armcap_P-. |
| 338 | # else |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 339 | .quad OPENSSL_armcap_P-. |
Robert Sloan | 8ff0355 | 2017-06-14 12:40:58 -0700 | [diff] [blame^] | 340 | # endif |
| 341 | #endif |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 342 | .asciz "SHA$BITS block transform for ARMv8, CRYPTOGAMS by <appro\@openssl.org>" |
| 343 | .align 2 |
| 344 | ___ |
| 345 | |
| 346 | if ($SZ==4) { |
| 347 | my $Ktbl="x3"; |
| 348 | |
| 349 | my ($ABCD,$EFGH,$abcd)=map("v$_.16b",(0..2)); |
| 350 | my @MSG=map("v$_.16b",(4..7)); |
| 351 | my ($W0,$W1)=("v16.4s","v17.4s"); |
| 352 | my ($ABCD_SAVE,$EFGH_SAVE)=("v18.16b","v19.16b"); |
| 353 | |
| 354 | $code.=<<___; |
Robert Sloan | 8ff0355 | 2017-06-14 12:40:58 -0700 | [diff] [blame^] | 355 | #ifndef __KERNEL__ |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 356 | .type sha256_block_armv8,%function |
| 357 | .align 6 |
| 358 | sha256_block_armv8: |
| 359 | .Lv8_entry: |
| 360 | stp x29,x30,[sp,#-16]! |
| 361 | add x29,sp,#0 |
| 362 | |
| 363 | ld1.32 {$ABCD,$EFGH},[$ctx] |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 364 | adr $Ktbl,.LK256 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 365 | |
| 366 | .Loop_hw: |
| 367 | ld1 {@MSG[0]-@MSG[3]},[$inp],#64 |
| 368 | sub $num,$num,#1 |
| 369 | ld1.32 {$W0},[$Ktbl],#16 |
| 370 | rev32 @MSG[0],@MSG[0] |
| 371 | rev32 @MSG[1],@MSG[1] |
| 372 | rev32 @MSG[2],@MSG[2] |
| 373 | rev32 @MSG[3],@MSG[3] |
| 374 | orr $ABCD_SAVE,$ABCD,$ABCD // offload |
| 375 | orr $EFGH_SAVE,$EFGH,$EFGH |
| 376 | ___ |
| 377 | for($i=0;$i<12;$i++) { |
| 378 | $code.=<<___; |
| 379 | ld1.32 {$W1},[$Ktbl],#16 |
| 380 | add.i32 $W0,$W0,@MSG[0] |
| 381 | sha256su0 @MSG[0],@MSG[1] |
| 382 | orr $abcd,$ABCD,$ABCD |
| 383 | sha256h $ABCD,$EFGH,$W0 |
| 384 | sha256h2 $EFGH,$abcd,$W0 |
| 385 | sha256su1 @MSG[0],@MSG[2],@MSG[3] |
| 386 | ___ |
| 387 | ($W0,$W1)=($W1,$W0); push(@MSG,shift(@MSG)); |
| 388 | } |
| 389 | $code.=<<___; |
| 390 | ld1.32 {$W1},[$Ktbl],#16 |
| 391 | add.i32 $W0,$W0,@MSG[0] |
| 392 | orr $abcd,$ABCD,$ABCD |
| 393 | sha256h $ABCD,$EFGH,$W0 |
| 394 | sha256h2 $EFGH,$abcd,$W0 |
| 395 | |
| 396 | ld1.32 {$W0},[$Ktbl],#16 |
| 397 | add.i32 $W1,$W1,@MSG[1] |
| 398 | orr $abcd,$ABCD,$ABCD |
| 399 | sha256h $ABCD,$EFGH,$W1 |
| 400 | sha256h2 $EFGH,$abcd,$W1 |
| 401 | |
| 402 | ld1.32 {$W1},[$Ktbl] |
| 403 | add.i32 $W0,$W0,@MSG[2] |
| 404 | sub $Ktbl,$Ktbl,#$rounds*$SZ-16 // rewind |
| 405 | orr $abcd,$ABCD,$ABCD |
| 406 | sha256h $ABCD,$EFGH,$W0 |
| 407 | sha256h2 $EFGH,$abcd,$W0 |
| 408 | |
| 409 | add.i32 $W1,$W1,@MSG[3] |
| 410 | orr $abcd,$ABCD,$ABCD |
| 411 | sha256h $ABCD,$EFGH,$W1 |
| 412 | sha256h2 $EFGH,$abcd,$W1 |
| 413 | |
| 414 | add.i32 $ABCD,$ABCD,$ABCD_SAVE |
| 415 | add.i32 $EFGH,$EFGH,$EFGH_SAVE |
| 416 | |
| 417 | cbnz $num,.Loop_hw |
| 418 | |
| 419 | st1.32 {$ABCD,$EFGH},[$ctx] |
| 420 | |
| 421 | ldr x29,[sp],#16 |
| 422 | ret |
| 423 | .size sha256_block_armv8,.-sha256_block_armv8 |
Robert Sloan | 8ff0355 | 2017-06-14 12:40:58 -0700 | [diff] [blame^] | 424 | #endif |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 425 | ___ |
| 426 | } |
| 427 | |
| 428 | $code.=<<___; |
Robert Sloan | 8ff0355 | 2017-06-14 12:40:58 -0700 | [diff] [blame^] | 429 | #ifndef __KERNEL__ |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 430 | .comm OPENSSL_armcap_P,4,4 |
Robert Sloan | 8ff0355 | 2017-06-14 12:40:58 -0700 | [diff] [blame^] | 431 | #endif |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 432 | ___ |
| 433 | |
| 434 | { my %opcode = ( |
| 435 | "sha256h" => 0x5e004000, "sha256h2" => 0x5e005000, |
| 436 | "sha256su0" => 0x5e282800, "sha256su1" => 0x5e006000 ); |
| 437 | |
| 438 | sub unsha256 { |
| 439 | my ($mnemonic,$arg)=@_; |
| 440 | |
| 441 | $arg =~ m/[qv]([0-9]+)[^,]*,\s*[qv]([0-9]+)[^,]*(?:,\s*[qv]([0-9]+))?/o |
| 442 | && |
| 443 | sprintf ".inst\t0x%08x\t//%s %s", |
| 444 | $opcode{$mnemonic}|$1|($2<<5)|($3<<16), |
| 445 | $mnemonic,$arg; |
| 446 | } |
| 447 | } |
| 448 | |
Robert Sloan | 8ff0355 | 2017-06-14 12:40:58 -0700 | [diff] [blame^] | 449 | open SELF,$0; |
| 450 | while(<SELF>) { |
| 451 | next if (/^#!/); |
| 452 | last if (!s/^#/\/\// and !/^$/); |
| 453 | print; |
| 454 | } |
| 455 | close SELF; |
| 456 | |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 457 | foreach(split("\n",$code)) { |
| 458 | |
| 459 | s/\`([^\`]*)\`/eval($1)/geo; |
| 460 | |
| 461 | s/\b(sha256\w+)\s+([qv].*)/unsha256($1,$2)/geo; |
| 462 | |
| 463 | s/\.\w?32\b//o and s/\.16b/\.4s/go; |
| 464 | m/(ld|st)1[^\[]+\[0\]/o and s/\.4s/\.s/go; |
| 465 | |
| 466 | print $_,"\n"; |
| 467 | } |
| 468 | |
| 469 | close STDOUT; |