projects / thirdparty / openssl.git / blame
| Commit | Line | Data |
|---|---|---|
| 6aa36e8e RS |
1 | #! /usr/bin/env perl |
| 2 | # Copyright 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 | ||
| a98c648e AP |
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 | # November 2014 | |
| 18 | # | |
| 19 | # ChaCha20 for x86_64. | |
| 20 | # | |
| abb8c44f AP |
21 | # December 2016 |
| 22 | # | |
| 23 | # Add AVX512F code path. | |
| 24 | # | |
| a98c648e AP |
25 | # Performance in cycles per byte out of large buffer. |
| 26 | # | |
| 27 | # IALU/gcc 4.8(i) 1xSSSE3/SSE2 4xSSSE3 8xAVX2 | |
| 28 | # | |
| 29 | # P4 9.48/+99% -/22.7(ii) - | |
| 30 | # Core2 7.83/+55% 7.90/8.08 4.35 | |
| 31 | # Westmere 7.19/+50% 5.60/6.70 3.00 | |
| 32 | # Sandy Bridge 8.31/+42% 5.45/6.76 2.72 | |
| 33 | # Ivy Bridge 6.71/+46% 5.40/6.49 2.41 | |
| 34 | # Haswell 5.92/+43% 5.20/6.45 2.42 1.23 | |
| a30b0522 | 35 | # Skylake 5.87/+39% 4.70/- 2.31 1.19 |
| a98c648e | 36 | # Silvermont 12.0/+33% 7.75/7.40 7.03(iii) |
| ace05265 | 37 | # Goldmont 10.6/+17% 5.10/- 3.28 |
| a98c648e AP |
38 | # Sledgehammer 7.28/+52% -/14.2(ii) - |
| 39 | # Bulldozer 9.66/+28% 9.85/11.1 3.06(iv) | |
| 40 | # VIA Nano 10.5/+46% 6.72/8.60 6.05 | |
| 41 | # | |
| 42 | # (i) compared to older gcc 3.x one can observe >2x improvement on | |
| 43 | # most platforms; | |
| 44 | # (ii) as it can be seen, SSE2 performance is too low on legacy | |
| 45 | # processors; NxSSE2 results are naturally better, but not | |
| 46 | # impressively better than IALU ones, which is why you won't | |
| 47 | # find SSE2 code below; | |
| 48 | # (iii) this is not optimal result for Atom because of MSROM | |
| 49 | # limitations, SSE2 can do better, but gain is considered too | |
| 50 | # low to justify the [maintenance] effort; | |
| 51 | # (iv) Bulldozer actually executes 4xXOP code path that delivers 2.20; | |
| 52 | ||
| 53 | $flavour = shift; | |
| 54 | $output = shift; | |
| 55 | if ($flavour =~ /\./) { $output = $flavour; undef $flavour; } | |
| 56 | ||
| 57 | $win64=0; $win64=1 if ($flavour =~ /[nm]asm|mingw64/ || $output =~ /\.asm$/); | |
| 58 | ||
| 59 | $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1; | |
| 60 | ( $xlate="${dir}x86_64-xlate.pl" and -f $xlate ) or | |
| 61 | ( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or | |
| 62 | die "can't locate x86_64-xlate.pl"; | |
| 63 | ||
| 64 | if (`$ENV{CC} -Wa,-v -c -o /dev/null -x assembler /dev/null 2>&1` | |
| 65 | =~ /GNU assembler version ([2-9]\.[0-9]+)/) { | |
| abb8c44f | 66 | $avx = ($1>=2.19) + ($1>=2.22) + ($1>=2.25); |
| a98c648e AP |
67 | } |
| 68 | ||
| 69 | if (!$avx && $win64 && ($flavour =~ /nasm/ || $ENV{ASM} =~ /nasm/) && | |
| 1ea01427 | 70 | `nasm -v 2>&1` =~ /NASM version ([2-9]\.[0-9]+)(?:\.([0-9]+))?/) { |
| abb8c44f AP |
71 | $avx = ($1>=2.09) + ($1>=2.10) + ($1>=2.12); |
| 72 | $avx += 1 if ($1==2.11 && $2>=8); | |
| a98c648e AP |
73 | } |
| 74 | ||
| 75 | if (!$avx && $win64 && ($flavour =~ /masm/ || $ENV{ASM} =~ /ml64/) && | |
| 76 | `ml64 2>&1` =~ /Version ([0-9]+)\./) { | |
| 77 | $avx = ($1>=10) + ($1>=11); | |
| 78 | } | |
| 79 | ||
| 80 | if (!$avx && `$ENV{CC} -v 2>&1` =~ /((?:^clang|LLVM) version|.*based on LLVM) ([3-9]\.[0-9]+)/) { | |
| 81 | $avx = ($2>=3.0) + ($2>3.0); | |
| 82 | } | |
| 83 | ||
| cfe1d992 | 84 | open OUT,"| \"$^X\" \"$xlate\" $flavour \"$output\""; |
| a98c648e AP |
85 | *STDOUT=*OUT; |
| 86 | ||
| 87 | # input parameter block | |
| 88 | ($out,$inp,$len,$key,$counter)=("%rdi","%rsi","%rdx","%rcx","%r8"); | |
| 89 | ||
| 90 | $code.=<<___; | |
| 91 | .text | |
| 92 | ||
| 93 | .extern OPENSSL_ia32cap_P | |
| 94 | ||
| 95 | .align 64 | |
| 96 | .Lzero: | |
| 97 | .long 0,0,0,0 | |
| 98 | .Lone: | |
| 99 | .long 1,0,0,0 | |
| 100 | .Linc: | |
| 101 | .long 0,1,2,3 | |
| 102 | .Lfour: | |
| 103 | .long 4,4,4,4 | |
| 104 | .Lincy: | |
| 105 | .long 0,2,4,6,1,3,5,7 | |
| 106 | .Leight: | |
| 107 | .long 8,8,8,8,8,8,8,8 | |
| 108 | .Lrot16: | |
| 109 | .byte 0x2,0x3,0x0,0x1, 0x6,0x7,0x4,0x5, 0xa,0xb,0x8,0x9, 0xe,0xf,0xc,0xd | |
| 110 | .Lrot24: | |
| 111 | .byte 0x3,0x0,0x1,0x2, 0x7,0x4,0x5,0x6, 0xb,0x8,0x9,0xa, 0xf,0xc,0xd,0xe | |
| 112 | .Lsigma: | |
| 113 | .asciz "expand 32-byte k" | |
| abb8c44f | 114 | .align 64 |
| 3c274a6e AP |
115 | .Lzeroz: |
| 116 | .long 0,0,0,0, 1,0,0,0, 2,0,0,0, 3,0,0,0 | |
| 117 | .Lfourz: | |
| 118 | .long 4,0,0,0, 4,0,0,0, 4,0,0,0, 4,0,0,0 | |
| abb8c44f AP |
119 | .Lincz: |
| 120 | .long 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15 | |
| 121 | .Lsixteen: | |
| 122 | .long 16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16 | |
| a98c648e AP |
123 | .asciz "ChaCha20 for x86_64, CRYPTOGAMS by <appro\@openssl.org>" |
| 124 | ___ | |
| 125 | ||
| 126 | sub AUTOLOAD() # thunk [simplified] 32-bit style perlasm | |
| 127 | { my $opcode = $AUTOLOAD; $opcode =~ s/.*:://; | |
| 128 | my $arg = pop; | |
| 129 | $arg = "\$$arg" if ($arg*1 eq $arg); | |
| 130 | $code .= "\t$opcode\t".join(',',$arg,reverse @_)."\n"; | |
| 131 | } | |
| 132 | ||
| 133 | @x=("%eax","%ebx","%ecx","%edx",map("%r${_}d",(8..11)), | |
| 134 | "%nox","%nox","%nox","%nox",map("%r${_}d",(12..15))); | |
| 135 | @t=("%esi","%edi"); | |
| 136 | ||
| 137 | sub ROUND { # critical path is 24 cycles per round | |
| 138 | my ($a0,$b0,$c0,$d0)=@_; | |
| 139 | my ($a1,$b1,$c1,$d1)=map(($_&~3)+(($_+1)&3),($a0,$b0,$c0,$d0)); | |
| 140 | my ($a2,$b2,$c2,$d2)=map(($_&~3)+(($_+1)&3),($a1,$b1,$c1,$d1)); | |
| 141 | my ($a3,$b3,$c3,$d3)=map(($_&~3)+(($_+1)&3),($a2,$b2,$c2,$d2)); | |
| 142 | my ($xc,$xc_)=map("\"$_\"",@t); | |
| 143 | my @x=map("\"$_\"",@x); | |
| 144 | ||
| 145 | # Consider order in which variables are addressed by their | |
| 146 | # index: | |
| 147 | # | |
| 148 | # a b c d | |
| 149 | # | |
| 150 | # 0 4 8 12 < even round | |
| 151 | # 1 5 9 13 | |
| 152 | # 2 6 10 14 | |
| 153 | # 3 7 11 15 | |
| 154 | # 0 5 10 15 < odd round | |
| 155 | # 1 6 11 12 | |
| 156 | # 2 7 8 13 | |
| 157 | # 3 4 9 14 | |
| 158 | # | |
| 159 | # 'a', 'b' and 'd's are permanently allocated in registers, | |
| 160 | # @x[0..7,12..15], while 'c's are maintained in memory. If | |
| 161 | # you observe 'c' column, you'll notice that pair of 'c's is | |
| 162 | # invariant between rounds. This means that we have to reload | |
| 163 | # them once per round, in the middle. This is why you'll see | |
| 164 | # bunch of 'c' stores and loads in the middle, but none in | |
| 165 | # the beginning or end. | |
| 166 | ||
| 167 | # Normally instructions would be interleaved to favour in-order | |
| 168 | # execution. Generally out-of-order cores manage it gracefully, | |
| 169 | # but not this time for some reason. As in-order execution | |
| 170 | # cores are dying breed, old Atom is the only one around, | |
| 171 | # instructions are left uninterleaved. Besides, Atom is better | |
| 172 | # off executing 1xSSSE3 code anyway... | |
| 173 | ||
| 174 | ( | |
| 175 | "&add (@x[$a0],@x[$b0])", # Q1 | |
| 176 | "&xor (@x[$d0],@x[$a0])", | |
| 177 | "&rol (@x[$d0],16)", | |
| 178 | "&add (@x[$a1],@x[$b1])", # Q2 | |
| 179 | "&xor (@x[$d1],@x[$a1])", | |
| 180 | "&rol (@x[$d1],16)", | |
| 181 | ||
| 182 | "&add ($xc,@x[$d0])", | |
| 183 | "&xor (@x[$b0],$xc)", | |
| 184 | "&rol (@x[$b0],12)", | |
| 185 | "&add ($xc_,@x[$d1])", | |
| 186 | "&xor (@x[$b1],$xc_)", | |
| 187 | "&rol (@x[$b1],12)", | |
| 188 | ||
| 189 | "&add (@x[$a0],@x[$b0])", | |
| 190 | "&xor (@x[$d0],@x[$a0])", | |
| 191 | "&rol (@x[$d0],8)", | |
| 192 | "&add (@x[$a1],@x[$b1])", | |
| 193 | "&xor (@x[$d1],@x[$a1])", | |
| 194 | "&rol (@x[$d1],8)", | |
| 195 | ||
| 196 | "&add ($xc,@x[$d0])", | |
| 197 | "&xor (@x[$b0],$xc)", | |
| 198 | "&rol (@x[$b0],7)", | |
| 199 | "&add ($xc_,@x[$d1])", | |
| 200 | "&xor (@x[$b1],$xc_)", | |
| 201 | "&rol (@x[$b1],7)", | |
| 202 | ||
| 203 | "&mov (\"4*$c0(%rsp)\",$xc)", # reload pair of 'c's | |
| 204 | "&mov (\"4*$c1(%rsp)\",$xc_)", | |
| 205 | "&mov ($xc,\"4*$c2(%rsp)\")", | |
| 206 | "&mov ($xc_,\"4*$c3(%rsp)\")", | |
| 207 | ||
| 208 | "&add (@x[$a2],@x[$b2])", # Q3 | |
| 209 | "&xor (@x[$d2],@x[$a2])", | |
| 210 | "&rol (@x[$d2],16)", | |
| 211 | "&add (@x[$a3],@x[$b3])", # Q4 | |
| 212 | "&xor (@x[$d3],@x[$a3])", | |
| 213 | "&rol (@x[$d3],16)", | |
| 214 | ||
| 215 | "&add ($xc,@x[$d2])", | |
| 216 | "&xor (@x[$b2],$xc)", | |
| 217 | "&rol (@x[$b2],12)", | |
| 218 | "&add ($xc_,@x[$d3])", | |
| 219 | "&xor (@x[$b3],$xc_)", | |
| 220 | "&rol (@x[$b3],12)", | |
| 221 | ||
| 222 | "&add (@x[$a2],@x[$b2])", | |
| 223 | "&xor (@x[$d2],@x[$a2])", | |
| 224 | "&rol (@x[$d2],8)", | |
| 225 | "&add (@x[$a3],@x[$b3])", | |
| 226 | "&xor (@x[$d3],@x[$a3])", | |
| 227 | "&rol (@x[$d3],8)", | |
| 228 | ||
| 229 | "&add ($xc,@x[$d2])", | |
| 230 | "&xor (@x[$b2],$xc)", | |
| 231 | "&rol (@x[$b2],7)", | |
| 232 | "&add ($xc_,@x[$d3])", | |
| 233 | "&xor (@x[$b3],$xc_)", | |
| 234 | "&rol (@x[$b3],7)" | |
| 235 | ); | |
| 236 | } | |
| 237 | ||
| 238 | ######################################################################## | |
| 239 | # Generic code path that handles all lengths on pre-SSSE3 processors. | |
| 240 | $code.=<<___; | |
| 241 | .globl ChaCha20_ctr32 | |
| 242 | .type ChaCha20_ctr32,\@function,5 | |
| 243 | .align 64 | |
| 244 | ChaCha20_ctr32: | |
| 622a531c AP |
245 | cmp \$0,$len |
| 246 | je .Lno_data | |
| a98c648e | 247 | mov OPENSSL_ia32cap_P+4(%rip),%r10 |
| 3c274a6e AP |
248 | ___ |
| 249 | $code.=<<___ if ($avx>2); | |
| 250 | bt \$48,%r10 # check for AVX512F | |
| 251 | jc .LChaCha20_avx512 | |
| 252 | ___ | |
| 253 | $code.=<<___; | |
| a98c648e AP |
254 | test \$`1<<(41-32)`,%r10d |
| 255 | jnz .LChaCha20_ssse3 | |
| 256 | ||
| 257 | push %rbx | |
| 258 | push %rbp | |
| 259 | push %r12 | |
| 260 | push %r13 | |
| 261 | push %r14 | |
| 262 | push %r15 | |
| 263 | sub \$64+24,%rsp | |
| 264 | ||
| 265 | #movdqa .Lsigma(%rip),%xmm0 | |
| 266 | movdqu ($key),%xmm1 | |
| 267 | movdqu 16($key),%xmm2 | |
| 268 | movdqu ($counter),%xmm3 | |
| 269 | movdqa .Lone(%rip),%xmm4 | |
| 270 | ||
| 271 | #movdqa %xmm0,4*0(%rsp) # key[0] | |
| 272 | movdqa %xmm1,4*4(%rsp) # key[1] | |
| 273 | movdqa %xmm2,4*8(%rsp) # key[2] | |
| 274 | movdqa %xmm3,4*12(%rsp) # key[3] | |
| 275 | mov $len,%rbp # reassign $len | |
| 276 | jmp .Loop_outer | |
| 277 | ||
| 278 | .align 32 | |
| 279 | .Loop_outer: | |
| 280 | mov \$0x61707865,@x[0] # 'expa' | |
| 281 | mov \$0x3320646e,@x[1] # 'nd 3' | |
| 282 | mov \$0x79622d32,@x[2] # '2-by' | |
| 283 | mov \$0x6b206574,@x[3] # 'te k' | |
| 284 | mov 4*4(%rsp),@x[4] | |
| 285 | mov 4*5(%rsp),@x[5] | |
| 286 | mov 4*6(%rsp),@x[6] | |
| 287 | mov 4*7(%rsp),@x[7] | |
| 288 | movd %xmm3,@x[12] | |
| 289 | mov 4*13(%rsp),@x[13] | |
| 290 | mov 4*14(%rsp),@x[14] | |
| 291 | mov 4*15(%rsp),@x[15] | |
| 292 | ||
| 293 | mov %rbp,64+0(%rsp) # save len | |
| 294 | mov \$10,%ebp | |
| 295 | mov $inp,64+8(%rsp) # save inp | |
| 296 | movq %xmm2,%rsi # "@x[8]" | |
| 297 | mov $out,64+16(%rsp) # save out | |
| 298 | mov %rsi,%rdi | |
| 299 | shr \$32,%rdi # "@x[9]" | |
| 300 | jmp .Loop | |
| 301 | ||
| 302 | .align 32 | |
| 303 | .Loop: | |
| 304 | ___ | |
| 305 | foreach (&ROUND (0, 4, 8,12)) { eval; } | |
| 306 | foreach (&ROUND (0, 5,10,15)) { eval; } | |
| 307 | &dec ("%ebp"); | |
| 308 | &jnz (".Loop"); | |
| 309 | ||
| 310 | $code.=<<___; | |
| 311 | mov @t[1],4*9(%rsp) # modulo-scheduled | |
| 312 | mov @t[0],4*8(%rsp) | |
| 313 | mov 64(%rsp),%rbp # load len | |
| 314 | movdqa %xmm2,%xmm1 | |
| 315 | mov 64+8(%rsp),$inp # load inp | |
| 316 | paddd %xmm4,%xmm3 # increment counter | |
| 317 | mov 64+16(%rsp),$out # load out | |
| 318 | ||
| 319 | add \$0x61707865,@x[0] # 'expa' | |
| 320 | add \$0x3320646e,@x[1] # 'nd 3' | |
| 321 | add \$0x79622d32,@x[2] # '2-by' | |
| 322 | add \$0x6b206574,@x[3] # 'te k' | |
| 323 | add 4*4(%rsp),@x[4] | |
| 324 | add 4*5(%rsp),@x[5] | |
| 325 | add 4*6(%rsp),@x[6] | |
| 326 | add 4*7(%rsp),@x[7] | |
| 327 | add 4*12(%rsp),@x[12] | |
| 328 | add 4*13(%rsp),@x[13] | |
| 329 | add 4*14(%rsp),@x[14] | |
| 330 | add 4*15(%rsp),@x[15] | |
| 331 | paddd 4*8(%rsp),%xmm1 | |
| 332 | ||
| 333 | cmp \$64,%rbp | |
| 334 | jb .Ltail | |
| 335 | ||
| 336 | xor 4*0($inp),@x[0] # xor with input | |
| 337 | xor 4*1($inp),@x[1] | |
| 338 | xor 4*2($inp),@x[2] | |
| 339 | xor 4*3($inp),@x[3] | |
| 340 | xor 4*4($inp),@x[4] | |
| 341 | xor 4*5($inp),@x[5] | |
| 342 | xor 4*6($inp),@x[6] | |
| 343 | xor 4*7($inp),@x[7] | |
| 344 | movdqu 4*8($inp),%xmm0 | |
| 345 | xor 4*12($inp),@x[12] | |
| 346 | xor 4*13($inp),@x[13] | |
| 347 | xor 4*14($inp),@x[14] | |
| 348 | xor 4*15($inp),@x[15] | |
| 349 | lea 4*16($inp),$inp # inp+=64 | |
| 350 | pxor %xmm1,%xmm0 | |
| 351 | ||
| 352 | movdqa %xmm2,4*8(%rsp) | |
| 353 | movd %xmm3,4*12(%rsp) | |
| 354 | ||
| 355 | mov @x[0],4*0($out) # write output | |
| 356 | mov @x[1],4*1($out) | |
| 357 | mov @x[2],4*2($out) | |
| 358 | mov @x[3],4*3($out) | |
| 359 | mov @x[4],4*4($out) | |
| 360 | mov @x[5],4*5($out) | |
| 361 | mov @x[6],4*6($out) | |
| 362 | mov @x[7],4*7($out) | |
| 363 | movdqu %xmm0,4*8($out) | |
| 364 | mov @x[12],4*12($out) | |
| 365 | mov @x[13],4*13($out) | |
| 366 | mov @x[14],4*14($out) | |
| 367 | mov @x[15],4*15($out) | |
| 368 | lea 4*16($out),$out # out+=64 | |
| 369 | ||
| 370 | sub \$64,%rbp | |
| 371 | jnz .Loop_outer | |
| 372 | ||
| 373 | jmp .Ldone | |
| 374 | ||
| 375 | .align 16 | |
| 376 | .Ltail: | |
| 377 | mov @x[0],4*0(%rsp) | |
| a98c648e | 378 | mov @x[1],4*1(%rsp) |
| 29880e97 | 379 | xor %rbx,%rbx |
| a98c648e AP |
380 | mov @x[2],4*2(%rsp) |
| 381 | mov @x[3],4*3(%rsp) | |
| 382 | mov @x[4],4*4(%rsp) | |
| 383 | mov @x[5],4*5(%rsp) | |
| 384 | mov @x[6],4*6(%rsp) | |
| 385 | mov @x[7],4*7(%rsp) | |
| 386 | movdqa %xmm1,4*8(%rsp) | |
| 387 | mov @x[12],4*12(%rsp) | |
| 388 | mov @x[13],4*13(%rsp) | |
| 389 | mov @x[14],4*14(%rsp) | |
| 390 | mov @x[15],4*15(%rsp) | |
| 391 | ||
| 392 | .Loop_tail: | |
| 393 | movzb ($inp,%rbx),%eax | |
| 394 | movzb (%rsp,%rbx),%edx | |
| 395 | lea 1(%rbx),%rbx | |
| 396 | xor %edx,%eax | |
| 397 | mov %al,-1($out,%rbx) | |
| 398 | dec %rbp | |
| 399 | jnz .Loop_tail | |
| 400 | ||
| 401 | .Ldone: | |
| 402 | add \$64+24,%rsp | |
| 403 | pop %r15 | |
| 404 | pop %r14 | |
| 405 | pop %r13 | |
| 406 | pop %r12 | |
| 407 | pop %rbp | |
| 408 | pop %rbx | |
| 622a531c | 409 | .Lno_data: |
| a98c648e AP |
410 | ret |
| 411 | .size ChaCha20_ctr32,.-ChaCha20_ctr32 | |
| 412 | ___ | |
| 413 | ||
| 414 | ######################################################################## | |
| 415 | # SSSE3 code path that handles shorter lengths | |
| 416 | { | |
| 417 | my ($a,$b,$c,$d,$t,$t1,$rot16,$rot24)=map("%xmm$_",(0..7)); | |
| 418 | ||
| 419 | sub SSSE3ROUND { # critical path is 20 "SIMD ticks" per round | |
| 420 | &paddd ($a,$b); | |
| 421 | &pxor ($d,$a); | |
| 422 | &pshufb ($d,$rot16); | |
| 423 | ||
| 424 | &paddd ($c,$d); | |
| 425 | &pxor ($b,$c); | |
| 426 | &movdqa ($t,$b); | |
| 427 | &psrld ($b,20); | |
| 428 | &pslld ($t,12); | |
| 429 | &por ($b,$t); | |
| 430 | ||
| 431 | &paddd ($a,$b); | |
| 432 | &pxor ($d,$a); | |
| 433 | &pshufb ($d,$rot24); | |
| 434 | ||
| 435 | &paddd ($c,$d); | |
| 436 | &pxor ($b,$c); | |
| 437 | &movdqa ($t,$b); | |
| 438 | &psrld ($b,25); | |
| 439 | &pslld ($t,7); | |
| 440 | &por ($b,$t); | |
| 441 | } | |
| 442 | ||
| 443 | my $xframe = $win64 ? 32+32+8 : 24; | |
| 444 | ||
| 445 | $code.=<<___; | |
| 446 | .type ChaCha20_ssse3,\@function,5 | |
| 447 | .align 32 | |
| 448 | ChaCha20_ssse3: | |
| 449 | .LChaCha20_ssse3: | |
| 450 | ___ | |
| 451 | $code.=<<___ if ($avx); | |
| 452 | test \$`1<<(43-32)`,%r10d | |
| 453 | jnz .LChaCha20_4xop # XOP is fastest even if we use 1/4 | |
| 454 | ___ | |
| 455 | $code.=<<___; | |
| 456 | cmp \$128,$len # we might throw away some data, | |
| 457 | ja .LChaCha20_4x # but overall it won't be slower | |
| 458 | ||
| 459 | .Ldo_sse3_after_all: | |
| 3c274a6e | 460 | push %rbx # just to share SEH handler, no pops |
| a98c648e AP |
461 | push %rbp |
| 462 | push %r12 | |
| 463 | push %r13 | |
| 464 | push %r14 | |
| 465 | push %r15 | |
| 466 | ||
| 467 | sub \$64+$xframe,%rsp | |
| 468 | ___ | |
| 469 | $code.=<<___ if ($win64); | |
| 470 | movaps %xmm6,64+32(%rsp) | |
| 471 | movaps %xmm7,64+48(%rsp) | |
| 472 | ___ | |
| 473 | $code.=<<___; | |
| 474 | movdqa .Lsigma(%rip),$a | |
| 475 | movdqu ($key),$b | |
| 476 | movdqu 16($key),$c | |
| 477 | movdqu ($counter),$d | |
| 478 | movdqa .Lrot16(%rip),$rot16 | |
| 479 | movdqa .Lrot24(%rip),$rot24 | |
| 480 | ||
| 481 | movdqa $a,0x00(%rsp) | |
| 482 | movdqa $b,0x10(%rsp) | |
| 483 | movdqa $c,0x20(%rsp) | |
| 484 | movdqa $d,0x30(%rsp) | |
| 3c274a6e | 485 | mov \$10,$counter # reuse $counter |
| a98c648e AP |
486 | jmp .Loop_ssse3 |
| 487 | ||
| 488 | .align 32 | |
| 489 | .Loop_outer_ssse3: | |
| 490 | movdqa .Lone(%rip),$d | |
| 491 | movdqa 0x00(%rsp),$a | |
| 492 | movdqa 0x10(%rsp),$b | |
| 493 | movdqa 0x20(%rsp),$c | |
| 494 | paddd 0x30(%rsp),$d | |
| 3c274a6e | 495 | mov \$10,$counter |
| a98c648e AP |
496 | movdqa $d,0x30(%rsp) |
| 497 | jmp .Loop_ssse3 | |
| 498 | ||
| 499 | .align 32 | |
| 500 | .Loop_ssse3: | |
| 501 | ___ | |
| 502 | &SSSE3ROUND(); | |
| 503 | &pshufd ($c,$c,0b01001110); | |
| 504 | &pshufd ($b,$b,0b00111001); | |
| 505 | &pshufd ($d,$d,0b10010011); | |
| 506 | &nop (); | |
| 507 | ||
| 508 | &SSSE3ROUND(); | |
| 509 | &pshufd ($c,$c,0b01001110); | |
| 510 | &pshufd ($b,$b,0b10010011); | |
| 511 | &pshufd ($d,$d,0b00111001); | |
| 512 | ||
| 3c274a6e | 513 | &dec ($counter); |
| a98c648e AP |
514 | &jnz (".Loop_ssse3"); |
| 515 | ||
| 516 | $code.=<<___; | |
| 517 | paddd 0x00(%rsp),$a | |
| 518 | paddd 0x10(%rsp),$b | |
| 519 | paddd 0x20(%rsp),$c | |
| 520 | paddd 0x30(%rsp),$d | |
| 521 | ||
| 522 | cmp \$64,$len | |
| 523 | jb .Ltail_ssse3 | |
| 524 | ||
| 525 | movdqu 0x00($inp),$t | |
| 526 | movdqu 0x10($inp),$t1 | |
| 527 | pxor $t,$a # xor with input | |
| 528 | movdqu 0x20($inp),$t | |
| 529 | pxor $t1,$b | |
| 530 | movdqu 0x30($inp),$t1 | |
| 531 | lea 0x40($inp),$inp # inp+=64 | |
| 532 | pxor $t,$c | |
| 533 | pxor $t1,$d | |
| 534 | ||
| 535 | movdqu $a,0x00($out) # write output | |
| 536 | movdqu $b,0x10($out) | |
| 537 | movdqu $c,0x20($out) | |
| 538 | movdqu $d,0x30($out) | |
| 539 | lea 0x40($out),$out # out+=64 | |
| 540 | ||
| 541 | sub \$64,$len | |
| 542 | jnz .Loop_outer_ssse3 | |
| 543 | ||
| 544 | jmp .Ldone_ssse3 | |
| 545 | ||
| 546 | .align 16 | |
| 547 | .Ltail_ssse3: | |
| 548 | movdqa $a,0x00(%rsp) | |
| 549 | movdqa $b,0x10(%rsp) | |
| 550 | movdqa $c,0x20(%rsp) | |
| 551 | movdqa $d,0x30(%rsp) | |
| 3c274a6e | 552 | xor $counter,$counter |
| a98c648e AP |
553 | |
| 554 | .Loop_tail_ssse3: | |
| 3c274a6e AP |
555 | movzb ($inp,$counter),%eax |
| 556 | movzb (%rsp,$counter),%ecx | |
| 557 | lea 1($counter),$counter | |
| 29880e97 | 558 | xor %ecx,%eax |
| 3c274a6e | 559 | mov %al,-1($out,$counter) |
| 29880e97 | 560 | dec $len |
| a98c648e AP |
561 | jnz .Loop_tail_ssse3 |
| 562 | ||
| 563 | .Ldone_ssse3: | |
| 564 | ___ | |
| 565 | $code.=<<___ if ($win64); | |
| 566 | movaps 64+32(%rsp),%xmm6 | |
| 567 | movaps 64+48(%rsp),%xmm7 | |
| 568 | ___ | |
| 569 | $code.=<<___; | |
| 3c274a6e | 570 | add \$64+$xframe+48,%rsp |
| a98c648e AP |
571 | ret |
| 572 | .size ChaCha20_ssse3,.-ChaCha20_ssse3 | |
| 573 | ___ | |
| 574 | } | |
| 575 | ||
| 576 | ######################################################################## | |
| 577 | # SSSE3 code path that handles longer messages. | |
| 578 | { | |
| 579 | # assign variables to favor Atom front-end | |
| 580 | my ($xd0,$xd1,$xd2,$xd3, $xt0,$xt1,$xt2,$xt3, | |
| 581 | $xa0,$xa1,$xa2,$xa3, $xb0,$xb1,$xb2,$xb3)=map("%xmm$_",(0..15)); | |
| 582 | my @xx=($xa0,$xa1,$xa2,$xa3, $xb0,$xb1,$xb2,$xb3, | |
| 583 | "%nox","%nox","%nox","%nox", $xd0,$xd1,$xd2,$xd3); | |
| 584 | ||
| 585 | sub SSSE3_lane_ROUND { | |
| 586 | my ($a0,$b0,$c0,$d0)=@_; | |
| 587 | my ($a1,$b1,$c1,$d1)=map(($_&~3)+(($_+1)&3),($a0,$b0,$c0,$d0)); | |
| 588 | my ($a2,$b2,$c2,$d2)=map(($_&~3)+(($_+1)&3),($a1,$b1,$c1,$d1)); | |
| 589 | my ($a3,$b3,$c3,$d3)=map(($_&~3)+(($_+1)&3),($a2,$b2,$c2,$d2)); | |
| 590 | my ($xc,$xc_,$t0,$t1)=map("\"$_\"",$xt0,$xt1,$xt2,$xt3); | |
| 591 | my @x=map("\"$_\"",@xx); | |
| 592 | ||
| 593 | # Consider order in which variables are addressed by their | |
| 594 | # index: | |
| 595 | # | |
| 596 | # a b c d | |
| 597 | # | |
| 598 | # 0 4 8 12 < even round | |
| 599 | # 1 5 9 13 | |
| 600 | # 2 6 10 14 | |
| 601 | # 3 7 11 15 | |
| 602 | # 0 5 10 15 < odd round | |
| 603 | # 1 6 11 12 | |
| 604 | # 2 7 8 13 | |
| 605 | # 3 4 9 14 | |
| 606 | # | |
| 607 | # 'a', 'b' and 'd's are permanently allocated in registers, | |
| 608 | # @x[0..7,12..15], while 'c's are maintained in memory. If | |
| 609 | # you observe 'c' column, you'll notice that pair of 'c's is | |
| 610 | # invariant between rounds. This means that we have to reload | |
| 611 | # them once per round, in the middle. This is why you'll see | |
| 612 | # bunch of 'c' stores and loads in the middle, but none in | |
| 613 | # the beginning or end. | |
| 614 | ||
| 615 | ( | |
| 616 | "&paddd (@x[$a0],@x[$b0])", # Q1 | |
| 617 | "&paddd (@x[$a1],@x[$b1])", # Q2 | |
| 618 | "&pxor (@x[$d0],@x[$a0])", | |
| 619 | "&pxor (@x[$d1],@x[$a1])", | |
| 620 | "&pshufb (@x[$d0],$t1)", | |
| 621 | "&pshufb (@x[$d1],$t1)", | |
| 622 | ||
| 623 | "&paddd ($xc,@x[$d0])", | |
| 624 | "&paddd ($xc_,@x[$d1])", | |
| 625 | "&pxor (@x[$b0],$xc)", | |
| 626 | "&pxor (@x[$b1],$xc_)", | |
| 627 | "&movdqa ($t0,@x[$b0])", | |
| 628 | "&pslld (@x[$b0],12)", | |
| 629 | "&psrld ($t0,20)", | |
| 630 | "&movdqa ($t1,@x[$b1])", | |
| 631 | "&pslld (@x[$b1],12)", | |
| 632 | "&por (@x[$b0],$t0)", | |
| 633 | "&psrld ($t1,20)", | |
| 634 | "&movdqa ($t0,'(%r11)')", # .Lrot24(%rip) | |
| 635 | "&por (@x[$b1],$t1)", | |
| 636 | ||
| 637 | "&paddd (@x[$a0],@x[$b0])", | |
| 638 | "&paddd (@x[$a1],@x[$b1])", | |
| 639 | "&pxor (@x[$d0],@x[$a0])", | |
| 640 | "&pxor (@x[$d1],@x[$a1])", | |
| 641 | "&pshufb (@x[$d0],$t0)", | |
| 642 | "&pshufb (@x[$d1],$t0)", | |
| 643 | ||
| 644 | "&paddd ($xc,@x[$d0])", | |
| 645 | "&paddd ($xc_,@x[$d1])", | |
| 646 | "&pxor (@x[$b0],$xc)", | |
| 647 | "&pxor (@x[$b1],$xc_)", | |
| 648 | "&movdqa ($t1,@x[$b0])", | |
| 649 | "&pslld (@x[$b0],7)", | |
| 650 | "&psrld ($t1,25)", | |
| 651 | "&movdqa ($t0,@x[$b1])", | |
| 652 | "&pslld (@x[$b1],7)", | |
| 653 | "&por (@x[$b0],$t1)", | |
| 654 | "&psrld ($t0,25)", | |
| 655 | "&movdqa ($t1,'(%r10)')", # .Lrot16(%rip) | |
| 656 | "&por (@x[$b1],$t0)", | |
| 657 | ||
| 658 | "&movdqa (\"`16*($c0-8)`(%rsp)\",$xc)", # reload pair of 'c's | |
| 659 | "&movdqa (\"`16*($c1-8)`(%rsp)\",$xc_)", | |
| 660 | "&movdqa ($xc,\"`16*($c2-8)`(%rsp)\")", | |
| 661 | "&movdqa ($xc_,\"`16*($c3-8)`(%rsp)\")", | |
| 662 | ||
| 663 | "&paddd (@x[$a2],@x[$b2])", # Q3 | |
| 664 | "&paddd (@x[$a3],@x[$b3])", # Q4 | |
| 665 | "&pxor (@x[$d2],@x[$a2])", | |
| 666 | "&pxor (@x[$d3],@x[$a3])", | |
| 667 | "&pshufb (@x[$d2],$t1)", | |
| 668 | "&pshufb (@x[$d3],$t1)", | |
| 669 | ||
| 670 | "&paddd ($xc,@x[$d2])", | |
| 671 | "&paddd ($xc_,@x[$d3])", | |
| 672 | "&pxor (@x[$b2],$xc)", | |
| 673 | "&pxor (@x[$b3],$xc_)", | |
| 674 | "&movdqa ($t0,@x[$b2])", | |
| 675 | "&pslld (@x[$b2],12)", | |
| 676 | "&psrld ($t0,20)", | |
| 677 | "&movdqa ($t1,@x[$b3])", | |
| 678 | "&pslld (@x[$b3],12)", | |
| 679 | "&por (@x[$b2],$t0)", | |
| 680 | "&psrld ($t1,20)", | |
| 681 | "&movdqa ($t0,'(%r11)')", # .Lrot24(%rip) | |
| 682 | "&por (@x[$b3],$t1)", | |
| 683 | ||
| 684 | "&paddd (@x[$a2],@x[$b2])", | |
| 685 | "&paddd (@x[$a3],@x[$b3])", | |
| 686 | "&pxor (@x[$d2],@x[$a2])", | |
| 687 | "&pxor (@x[$d3],@x[$a3])", | |
| 688 | "&pshufb (@x[$d2],$t0)", | |
| 689 | "&pshufb (@x[$d3],$t0)", | |
| 690 | ||
| 691 | "&paddd ($xc,@x[$d2])", | |
| 692 | "&paddd ($xc_,@x[$d3])", | |
| 693 | "&pxor (@x[$b2],$xc)", | |
| 694 | "&pxor (@x[$b3],$xc_)", | |
| 695 | "&movdqa ($t1,@x[$b2])", | |
| 696 | "&pslld (@x[$b2],7)", | |
| 697 | "&psrld ($t1,25)", | |
| 698 | "&movdqa ($t0,@x[$b3])", | |
| 699 | "&pslld (@x[$b3],7)", | |
| 700 | "&por (@x[$b2],$t1)", | |
| 701 | "&psrld ($t0,25)", | |
| 702 | "&movdqa ($t1,'(%r10)')", # .Lrot16(%rip) | |
| 703 | "&por (@x[$b3],$t0)" | |
| 704 | ); | |
| 705 | } | |
| 706 | ||
| 707 | my $xframe = $win64 ? 0xa0 : 0; | |
| 708 | ||
| 709 | $code.=<<___; | |
| 710 | .type ChaCha20_4x,\@function,5 | |
| 711 | .align 32 | |
| 712 | ChaCha20_4x: | |
| 713 | .LChaCha20_4x: | |
| 714 | mov %r10,%r11 | |
| 715 | ___ | |
| 716 | $code.=<<___ if ($avx>1); | |
| 717 | shr \$32,%r10 # OPENSSL_ia32cap_P+8 | |
| 718 | test \$`1<<5`,%r10 # test AVX2 | |
| 719 | jnz .LChaCha20_8x | |
| 720 | ___ | |
| 721 | $code.=<<___; | |
| 722 | cmp \$192,$len | |
| 723 | ja .Lproceed4x | |
| 724 | ||
| 725 | and \$`1<<26|1<<22`,%r11 # isolate XSAVE+MOVBE | |
| 726 | cmp \$`1<<22`,%r11 # check for MOVBE without XSAVE | |
| 727 | je .Ldo_sse3_after_all # to detect Atom | |
| 728 | ||
| 729 | .Lproceed4x: | |
| 730 | lea -0x78(%rsp),%r11 | |
| 731 | sub \$0x148+$xframe,%rsp | |
| 732 | ___ | |
| 733 | ################ stack layout | |
| 734 | # +0x00 SIMD equivalent of @x[8-12] | |
| 735 | # ... | |
| 736 | # +0x40 constant copy of key[0-2] smashed by lanes | |
| 737 | # ... | |
| 738 | # +0x100 SIMD counters (with nonce smashed by lanes) | |
| 739 | # ... | |
| 740 | # +0x140 | |
| 741 | $code.=<<___ if ($win64); | |
| 742 | movaps %xmm6,-0x30(%r11) | |
| 743 | movaps %xmm7,-0x20(%r11) | |
| 744 | movaps %xmm8,-0x10(%r11) | |
| 745 | movaps %xmm9,0x00(%r11) | |
| 746 | movaps %xmm10,0x10(%r11) | |
| 747 | movaps %xmm11,0x20(%r11) | |
| 748 | movaps %xmm12,0x30(%r11) | |
| 749 | movaps %xmm13,0x40(%r11) | |
| 750 | movaps %xmm14,0x50(%r11) | |
| 751 | movaps %xmm15,0x60(%r11) | |
| 752 | ___ | |
| 753 | $code.=<<___; | |
| 754 | movdqa .Lsigma(%rip),$xa3 # key[0] | |
| 755 | movdqu ($key),$xb3 # key[1] | |
| 756 | movdqu 16($key),$xt3 # key[2] | |
| 757 | movdqu ($counter),$xd3 # key[3] | |
| 758 | lea 0x100(%rsp),%rcx # size optimization | |
| 759 | lea .Lrot16(%rip),%r10 | |
| 760 | lea .Lrot24(%rip),%r11 | |
| 761 | ||
| 762 | pshufd \$0x00,$xa3,$xa0 # smash key by lanes... | |
| 763 | pshufd \$0x55,$xa3,$xa1 | |
| 764 | movdqa $xa0,0x40(%rsp) # ... and offload | |
| 765 | pshufd \$0xaa,$xa3,$xa2 | |
| 766 | movdqa $xa1,0x50(%rsp) | |
| 767 | pshufd \$0xff,$xa3,$xa3 | |
| 768 | movdqa $xa2,0x60(%rsp) | |
| 769 | movdqa $xa3,0x70(%rsp) | |
| 770 | ||
| 771 | pshufd \$0x00,$xb3,$xb0 | |
| 772 | pshufd \$0x55,$xb3,$xb1 | |
| 773 | movdqa $xb0,0x80-0x100(%rcx) | |
| 774 | pshufd \$0xaa,$xb3,$xb2 | |
| 775 | movdqa $xb1,0x90-0x100(%rcx) | |
| 776 | pshufd \$0xff,$xb3,$xb3 | |
| 777 | movdqa $xb2,0xa0-0x100(%rcx) | |
| 778 | movdqa $xb3,0xb0-0x100(%rcx) | |
| 779 | ||
| 780 | pshufd \$0x00,$xt3,$xt0 # "$xc0" | |
| 781 | pshufd \$0x55,$xt3,$xt1 # "$xc1" | |
| 782 | movdqa $xt0,0xc0-0x100(%rcx) | |
| 783 | pshufd \$0xaa,$xt3,$xt2 # "$xc2" | |
| 784 | movdqa $xt1,0xd0-0x100(%rcx) | |
| 785 | pshufd \$0xff,$xt3,$xt3 # "$xc3" | |
| 786 | movdqa $xt2,0xe0-0x100(%rcx) | |
| 787 | movdqa $xt3,0xf0-0x100(%rcx) | |
| 788 | ||
| 789 | pshufd \$0x00,$xd3,$xd0 | |
| 790 | pshufd \$0x55,$xd3,$xd1 | |
| 791 | paddd .Linc(%rip),$xd0 # don't save counters yet | |
| 792 | pshufd \$0xaa,$xd3,$xd2 | |
| 793 | movdqa $xd1,0x110-0x100(%rcx) | |
| 794 | pshufd \$0xff,$xd3,$xd3 | |
| 795 | movdqa $xd2,0x120-0x100(%rcx) | |
| 796 | movdqa $xd3,0x130-0x100(%rcx) | |
| 797 | ||
| 798 | jmp .Loop_enter4x | |
| 799 | ||
| 800 | .align 32 | |
| 801 | .Loop_outer4x: | |
| 802 | movdqa 0x40(%rsp),$xa0 # re-load smashed key | |
| 803 | movdqa 0x50(%rsp),$xa1 | |
| 804 | movdqa 0x60(%rsp),$xa2 | |
| 805 | movdqa 0x70(%rsp),$xa3 | |
| 806 | movdqa 0x80-0x100(%rcx),$xb0 | |
| 807 | movdqa 0x90-0x100(%rcx),$xb1 | |
| 808 | movdqa 0xa0-0x100(%rcx),$xb2 | |
| 809 | movdqa 0xb0-0x100(%rcx),$xb3 | |
| 810 | movdqa 0xc0-0x100(%rcx),$xt0 # "$xc0" | |
| 811 | movdqa 0xd0-0x100(%rcx),$xt1 # "$xc1" | |
| 812 | movdqa 0xe0-0x100(%rcx),$xt2 # "$xc2" | |
| 813 | movdqa 0xf0-0x100(%rcx),$xt3 # "$xc3" | |
| 814 | movdqa 0x100-0x100(%rcx),$xd0 | |
| 815 | movdqa 0x110-0x100(%rcx),$xd1 | |
| 816 | movdqa 0x120-0x100(%rcx),$xd2 | |
| 817 | movdqa 0x130-0x100(%rcx),$xd3 | |
| 818 | paddd .Lfour(%rip),$xd0 # next SIMD counters | |
| 819 | ||
| 820 | .Loop_enter4x: | |
| 821 | movdqa $xt2,0x20(%rsp) # SIMD equivalent of "@x[10]" | |
| 822 | movdqa $xt3,0x30(%rsp) # SIMD equivalent of "@x[11]" | |
| 823 | movdqa (%r10),$xt3 # .Lrot16(%rip) | |
| 824 | mov \$10,%eax | |
| 825 | movdqa $xd0,0x100-0x100(%rcx) # save SIMD counters | |
| 826 | jmp .Loop4x | |
| 827 | ||
| 828 | .align 32 | |
| 829 | .Loop4x: | |
| 830 | ___ | |
| 831 | foreach (&SSSE3_lane_ROUND(0, 4, 8,12)) { eval; } | |
| 832 | foreach (&SSSE3_lane_ROUND(0, 5,10,15)) { eval; } | |
| 833 | $code.=<<___; | |
| 834 | dec %eax | |
| 835 | jnz .Loop4x | |
| 836 | ||
| 837 | paddd 0x40(%rsp),$xa0 # accumulate key material | |
| 838 | paddd 0x50(%rsp),$xa1 | |
| 839 | paddd 0x60(%rsp),$xa2 | |
| 840 | paddd 0x70(%rsp),$xa3 | |
| 841 | ||
| 842 | movdqa $xa0,$xt2 # "de-interlace" data | |
| 843 | punpckldq $xa1,$xa0 | |
| 844 | movdqa $xa2,$xt3 | |
| 845 | punpckldq $xa3,$xa2 | |
| 846 | punpckhdq $xa1,$xt2 | |
| 847 | punpckhdq $xa3,$xt3 | |
| 848 | movdqa $xa0,$xa1 | |
| 849 | punpcklqdq $xa2,$xa0 # "a0" | |
| 850 | movdqa $xt2,$xa3 | |
| 851 | punpcklqdq $xt3,$xt2 # "a2" | |
| 852 | punpckhqdq $xa2,$xa1 # "a1" | |
| 853 | punpckhqdq $xt3,$xa3 # "a3" | |
| 854 | ___ | |
| 855 | ($xa2,$xt2)=($xt2,$xa2); | |
| 856 | $code.=<<___; | |
| 857 | paddd 0x80-0x100(%rcx),$xb0 | |
| 858 | paddd 0x90-0x100(%rcx),$xb1 | |
| 859 | paddd 0xa0-0x100(%rcx),$xb2 | |
| 860 | paddd 0xb0-0x100(%rcx),$xb3 | |
| 861 | ||
| 862 | movdqa $xa0,0x00(%rsp) # offload $xaN | |
| 863 | movdqa $xa1,0x10(%rsp) | |
| 864 | movdqa 0x20(%rsp),$xa0 # "xc2" | |
| 865 | movdqa 0x30(%rsp),$xa1 # "xc3" | |
| 866 | ||
| 867 | movdqa $xb0,$xt2 | |
| 868 | punpckldq $xb1,$xb0 | |
| 869 | movdqa $xb2,$xt3 | |
| 870 | punpckldq $xb3,$xb2 | |
| 871 | punpckhdq $xb1,$xt2 | |
| 872 | punpckhdq $xb3,$xt3 | |
| 873 | movdqa $xb0,$xb1 | |
| 874 | punpcklqdq $xb2,$xb0 # "b0" | |
| 875 | movdqa $xt2,$xb3 | |
| 876 | punpcklqdq $xt3,$xt2 # "b2" | |
| 877 | punpckhqdq $xb2,$xb1 # "b1" | |
| 878 | punpckhqdq $xt3,$xb3 # "b3" | |
| 879 | ___ | |
| 880 | ($xb2,$xt2)=($xt2,$xb2); | |
| 881 | my ($xc0,$xc1,$xc2,$xc3)=($xt0,$xt1,$xa0,$xa1); | |
| 882 | $code.=<<___; | |
| 883 | paddd 0xc0-0x100(%rcx),$xc0 | |
| 884 | paddd 0xd0-0x100(%rcx),$xc1 | |
| 885 | paddd 0xe0-0x100(%rcx),$xc2 | |
| 886 | paddd 0xf0-0x100(%rcx),$xc3 | |
| 887 | ||
| 888 | movdqa $xa2,0x20(%rsp) # keep offloading $xaN | |
| 889 | movdqa $xa3,0x30(%rsp) | |
| 890 | ||
| 891 | movdqa $xc0,$xt2 | |
| 892 | punpckldq $xc1,$xc0 | |
| 893 | movdqa $xc2,$xt3 | |
| 894 | punpckldq $xc3,$xc2 | |
| 895 | punpckhdq $xc1,$xt2 | |
| 896 | punpckhdq $xc3,$xt3 | |
| 897 | movdqa $xc0,$xc1 | |
| 898 | punpcklqdq $xc2,$xc0 # "c0" | |
| 899 | movdqa $xt2,$xc3 | |
| 900 | punpcklqdq $xt3,$xt2 # "c2" | |
| 901 | punpckhqdq $xc2,$xc1 # "c1" | |
| 902 | punpckhqdq $xt3,$xc3 # "c3" | |
| 903 | ___ | |
| 904 | ($xc2,$xt2)=($xt2,$xc2); | |
| 905 | ($xt0,$xt1)=($xa2,$xa3); # use $xaN as temporary | |
| 906 | $code.=<<___; | |
| 907 | paddd 0x100-0x100(%rcx),$xd0 | |
| 908 | paddd 0x110-0x100(%rcx),$xd1 | |
| 909 | paddd 0x120-0x100(%rcx),$xd2 | |
| 910 | paddd 0x130-0x100(%rcx),$xd3 | |
| 911 | ||
| 912 | movdqa $xd0,$xt2 | |
| 913 | punpckldq $xd1,$xd0 | |
| 914 | movdqa $xd2,$xt3 | |
| 915 | punpckldq $xd3,$xd2 | |
| 916 | punpckhdq $xd1,$xt2 | |
| 917 | punpckhdq $xd3,$xt3 | |
| 918 | movdqa $xd0,$xd1 | |
| 919 | punpcklqdq $xd2,$xd0 # "d0" | |
| 920 | movdqa $xt2,$xd3 | |
| 921 | punpcklqdq $xt3,$xt2 # "d2" | |
| 922 | punpckhqdq $xd2,$xd1 # "d1" | |
| 923 | punpckhqdq $xt3,$xd3 # "d3" | |
| 924 | ___ | |
| 925 | ($xd2,$xt2)=($xt2,$xd2); | |
| 926 | $code.=<<___; | |
| 927 | cmp \$64*4,$len | |
| 928 | jb .Ltail4x | |
| 929 | ||
| 930 | movdqu 0x00($inp),$xt0 # xor with input | |
| 931 | movdqu 0x10($inp),$xt1 | |
| 932 | movdqu 0x20($inp),$xt2 | |
| 933 | movdqu 0x30($inp),$xt3 | |
| 934 | pxor 0x00(%rsp),$xt0 # $xaN is offloaded, remember? | |
| 935 | pxor $xb0,$xt1 | |
| 936 | pxor $xc0,$xt2 | |
| 937 | pxor $xd0,$xt3 | |
| 938 | ||
| 939 | movdqu $xt0,0x00($out) | |
| 940 | movdqu 0x40($inp),$xt0 | |
| 941 | movdqu $xt1,0x10($out) | |
| 942 | movdqu 0x50($inp),$xt1 | |
| 943 | movdqu $xt2,0x20($out) | |
| 944 | movdqu 0x60($inp),$xt2 | |
| 945 | movdqu $xt3,0x30($out) | |
| 946 | movdqu 0x70($inp),$xt3 | |
| 947 | lea 0x80($inp),$inp # size optimization | |
| 948 | pxor 0x10(%rsp),$xt0 | |
| 949 | pxor $xb1,$xt1 | |
| 950 | pxor $xc1,$xt2 | |
| 951 | pxor $xd1,$xt3 | |
| 952 | ||
| 953 | movdqu $xt0,0x40($out) | |
| 954 | movdqu 0x00($inp),$xt0 | |
| 955 | movdqu $xt1,0x50($out) | |
| 956 | movdqu 0x10($inp),$xt1 | |
| 957 | movdqu $xt2,0x60($out) | |
| 958 | movdqu 0x20($inp),$xt2 | |
| 959 | movdqu $xt3,0x70($out) | |
| 960 | lea 0x80($out),$out # size optimization | |
| 961 | movdqu 0x30($inp),$xt3 | |
| 962 | pxor 0x20(%rsp),$xt0 | |
| 963 | pxor $xb2,$xt1 | |
| 964 | pxor $xc2,$xt2 | |
| 965 | pxor $xd2,$xt3 | |
| 966 | ||
| 967 | movdqu $xt0,0x00($out) | |
| 968 | movdqu 0x40($inp),$xt0 | |
| 969 | movdqu $xt1,0x10($out) | |
| 970 | movdqu 0x50($inp),$xt1 | |
| 971 | movdqu $xt2,0x20($out) | |
| 972 | movdqu 0x60($inp),$xt2 | |
| 973 | movdqu $xt3,0x30($out) | |
| 974 | movdqu 0x70($inp),$xt3 | |
| 975 | lea 0x80($inp),$inp # inp+=64*4 | |
| 976 | pxor 0x30(%rsp),$xt0 | |
| 977 | pxor $xb3,$xt1 | |
| 978 | pxor $xc3,$xt2 | |
| 979 | pxor $xd3,$xt3 | |
| 980 | movdqu $xt0,0x40($out) | |
| 981 | movdqu $xt1,0x50($out) | |
| 982 | movdqu $xt2,0x60($out) | |
| 983 | movdqu $xt3,0x70($out) | |
| 984 | lea 0x80($out),$out # out+=64*4 | |
| 985 | ||
| 986 | sub \$64*4,$len | |
| 987 | jnz .Loop_outer4x | |
| 988 | ||
| 989 | jmp .Ldone4x | |
| 990 | ||
| 991 | .Ltail4x: | |
| 992 | cmp \$192,$len | |
| 993 | jae .L192_or_more4x | |
| 994 | cmp \$128,$len | |
| 995 | jae .L128_or_more4x | |
| 996 | cmp \$64,$len | |
| 997 | jae .L64_or_more4x | |
| 998 | ||
| 999 | #movdqa 0x00(%rsp),$xt0 # $xaN is offloaded, remember? | |
| 1000 | xor %r10,%r10 | |
| 1001 | #movdqa $xt0,0x00(%rsp) | |
| 1002 | movdqa $xb0,0x10(%rsp) | |
| 1003 | movdqa $xc0,0x20(%rsp) | |
| 1004 | movdqa $xd0,0x30(%rsp) | |
| 1005 | jmp .Loop_tail4x | |
| 1006 | ||
| 1007 | .align 32 | |
| 1008 | .L64_or_more4x: | |
| 1009 | movdqu 0x00($inp),$xt0 # xor with input | |
| 1010 | movdqu 0x10($inp),$xt1 | |
| 1011 | movdqu 0x20($inp),$xt2 | |
| 1012 | movdqu 0x30($inp),$xt3 | |
| 1013 | pxor 0x00(%rsp),$xt0 # $xaxN is offloaded, remember? | |
| 1014 | pxor $xb0,$xt1 | |
| 1015 | pxor $xc0,$xt2 | |
| 1016 | pxor $xd0,$xt3 | |
| 1017 | movdqu $xt0,0x00($out) | |
| 1018 | movdqu $xt1,0x10($out) | |
| 1019 | movdqu $xt2,0x20($out) | |
| 1020 | movdqu $xt3,0x30($out) | |
| 1021 | je .Ldone4x | |
| 1022 | ||
| 1023 | movdqa 0x10(%rsp),$xt0 # $xaN is offloaded, remember? | |
| 1024 | lea 0x40($inp),$inp # inp+=64*1 | |
| 1025 | xor %r10,%r10 | |
| 1026 | movdqa $xt0,0x00(%rsp) | |
| 1027 | movdqa $xb1,0x10(%rsp) | |
| 1028 | lea 0x40($out),$out # out+=64*1 | |
| 1029 | movdqa $xc1,0x20(%rsp) | |
| 1030 | sub \$64,$len # len-=64*1 | |
| 1031 | movdqa $xd1,0x30(%rsp) | |
| 1032 | jmp .Loop_tail4x | |
| 1033 | ||
| 1034 | .align 32 | |
| 1035 | .L128_or_more4x: | |
| 1036 | movdqu 0x00($inp),$xt0 # xor with input | |
| 1037 | movdqu 0x10($inp),$xt1 | |
| 1038 | movdqu 0x20($inp),$xt2 | |
| 1039 | movdqu 0x30($inp),$xt3 | |
| 1040 | pxor 0x00(%rsp),$xt0 # $xaN is offloaded, remember? | |
| 1041 | pxor $xb0,$xt1 | |
| 1042 | pxor $xc0,$xt2 | |
| 1043 | pxor $xd0,$xt3 | |
| 1044 | ||
| 1045 | movdqu $xt0,0x00($out) | |
| 1046 | movdqu 0x40($inp),$xt0 | |
| 1047 | movdqu $xt1,0x10($out) | |
| 1048 | movdqu 0x50($inp),$xt1 | |
| 1049 | movdqu $xt2,0x20($out) | |
| 1050 | movdqu 0x60($inp),$xt2 | |
| 1051 | movdqu $xt3,0x30($out) | |
| 1052 | movdqu 0x70($inp),$xt3 | |
| 1053 | pxor 0x10(%rsp),$xt0 | |
| 1054 | pxor $xb1,$xt1 | |
| 1055 | pxor $xc1,$xt2 | |
| 1056 | pxor $xd1,$xt3 | |
| 1057 | movdqu $xt0,0x40($out) | |
| 1058 | movdqu $xt1,0x50($out) | |
| 1059 | movdqu $xt2,0x60($out) | |
| 1060 | movdqu $xt3,0x70($out) | |
| 1061 | je .Ldone4x | |
| 1062 | ||
| 1063 | movdqa 0x20(%rsp),$xt0 # $xaN is offloaded, remember? | |
| 1064 | lea 0x80($inp),$inp # inp+=64*2 | |
| 1065 | xor %r10,%r10 | |
| 1066 | movdqa $xt0,0x00(%rsp) | |
| 1067 | movdqa $xb2,0x10(%rsp) | |
| 1068 | lea 0x80($out),$out # out+=64*2 | |
| 1069 | movdqa $xc2,0x20(%rsp) | |
| 1070 | sub \$128,$len # len-=64*2 | |
| 1071 | movdqa $xd2,0x30(%rsp) | |
| 1072 | jmp .Loop_tail4x | |
| 1073 | ||
| 1074 | .align 32 | |
| 1075 | .L192_or_more4x: | |
| 1076 | movdqu 0x00($inp),$xt0 # xor with input | |
| 1077 | movdqu 0x10($inp),$xt1 | |
| 1078 | movdqu 0x20($inp),$xt2 | |
| 1079 | movdqu 0x30($inp),$xt3 | |
| 1080 | pxor 0x00(%rsp),$xt0 # $xaN is offloaded, remember? | |
| 1081 | pxor $xb0,$xt1 | |
| 1082 | pxor $xc0,$xt2 | |
| 1083 | pxor $xd0,$xt3 | |
| 1084 | ||
| 1085 | movdqu $xt0,0x00($out) | |
| 1086 | movdqu 0x40($inp),$xt0 | |
| 1087 | movdqu $xt1,0x10($out) | |
| 1088 | movdqu 0x50($inp),$xt1 | |
| 1089 | movdqu $xt2,0x20($out) | |
| 1090 | movdqu 0x60($inp),$xt2 | |
| 1091 | movdqu $xt3,0x30($out) | |
| 1092 | movdqu 0x70($inp),$xt3 | |
| 1093 | lea 0x80($inp),$inp # size optimization | |
| 1094 | pxor 0x10(%rsp),$xt0 | |
| 1095 | pxor $xb1,$xt1 | |
| 1096 | pxor $xc1,$xt2 | |
| 1097 | pxor $xd1,$xt3 | |
| 1098 | ||
| 1099 | movdqu $xt0,0x40($out) | |
| 1100 | movdqu 0x00($inp),$xt0 | |
| 1101 | movdqu $xt1,0x50($out) | |
| 1102 | movdqu 0x10($inp),$xt1 | |
| 1103 | movdqu $xt2,0x60($out) | |
| 1104 | movdqu 0x20($inp),$xt2 | |
| 1105 | movdqu $xt3,0x70($out) | |
| 1106 | lea 0x80($out),$out # size optimization | |
| 1107 | movdqu 0x30($inp),$xt3 | |
| 1108 | pxor 0x20(%rsp),$xt0 | |
| 1109 | pxor $xb2,$xt1 | |
| 1110 | pxor $xc2,$xt2 | |
| 1111 | pxor $xd2,$xt3 | |
| 1112 | movdqu $xt0,0x00($out) | |
| 1113 | movdqu $xt1,0x10($out) | |
| 1114 | movdqu $xt2,0x20($out) | |
| 1115 | movdqu $xt3,0x30($out) | |
| 1116 | je .Ldone4x | |
| 1117 | ||
| 1118 | movdqa 0x30(%rsp),$xt0 # $xaN is offloaded, remember? | |
| 1119 | lea 0x40($inp),$inp # inp+=64*3 | |
| 1120 | xor %r10,%r10 | |
| 1121 | movdqa $xt0,0x00(%rsp) | |
| 1122 | movdqa $xb3,0x10(%rsp) | |
| 1123 | lea 0x40($out),$out # out+=64*3 | |
| 1124 | movdqa $xc3,0x20(%rsp) | |
| 1125 | sub \$192,$len # len-=64*3 | |
| 1126 | movdqa $xd3,0x30(%rsp) | |
| 1127 | ||
| 1128 | .Loop_tail4x: | |
| 1129 | movzb ($inp,%r10),%eax | |
| 1130 | movzb (%rsp,%r10),%ecx | |
| 1131 | lea 1(%r10),%r10 | |
| 1132 | xor %ecx,%eax | |
| 1133 | mov %al,-1($out,%r10) | |
| 1134 | dec $len | |
| 1135 | jnz .Loop_tail4x | |
| 1136 | ||
| 1137 | .Ldone4x: | |
| 1138 | ___ | |
| 1139 | $code.=<<___ if ($win64); | |
| 1140 | lea 0x140+0x30(%rsp),%r11 | |
| 1141 | movaps -0x30(%r11),%xmm6 | |
| 1142 | movaps -0x20(%r11),%xmm7 | |
| 1143 | movaps -0x10(%r11),%xmm8 | |
| 1144 | movaps 0x00(%r11),%xmm9 | |
| 1145 | movaps 0x10(%r11),%xmm10 | |
| 1146 | movaps 0x20(%r11),%xmm11 | |
| 1147 | movaps 0x30(%r11),%xmm12 | |
| 1148 | movaps 0x40(%r11),%xmm13 | |
| 1149 | movaps 0x50(%r11),%xmm14 | |
| 1150 | movaps 0x60(%r11),%xmm15 | |
| 1151 | ___ | |
| 1152 | $code.=<<___; | |
| 1153 | add \$0x148+$xframe,%rsp | |
| 1154 | ret | |
| 1155 | .size ChaCha20_4x,.-ChaCha20_4x | |
| 1156 | ___ | |
| 1157 | } | |
| 1158 | ||
| 1159 | ######################################################################## | |
| 1160 | # XOP code path that handles all lengths. | |
| 1161 | if ($avx) { | |
| 1162 | # There is some "anomaly" observed depending on instructions' size or | |
| 1163 | # alignment. If you look closely at below code you'll notice that | |
| 1164 | # sometimes argument order varies. The order affects instruction | |
| 1165 | # encoding by making it larger, and such fiddling gives 5% performance | |
| 1166 | # improvement. This is on FX-4100... | |
| 1167 | ||
| 1168 | my ($xb0,$xb1,$xb2,$xb3, $xd0,$xd1,$xd2,$xd3, | |
| 1169 | $xa0,$xa1,$xa2,$xa3, $xt0,$xt1,$xt2,$xt3)=map("%xmm$_",(0..15)); | |
| 1170 | my @xx=($xa0,$xa1,$xa2,$xa3, $xb0,$xb1,$xb2,$xb3, | |
| 1171 | $xt0,$xt1,$xt2,$xt3, $xd0,$xd1,$xd2,$xd3); | |
| 1172 | ||
| 1173 | sub XOP_lane_ROUND { | |
| 1174 | my ($a0,$b0,$c0,$d0)=@_; | |
| 1175 | my ($a1,$b1,$c1,$d1)=map(($_&~3)+(($_+1)&3),($a0,$b0,$c0,$d0)); | |
| 1176 | my ($a2,$b2,$c2,$d2)=map(($_&~3)+(($_+1)&3),($a1,$b1,$c1,$d1)); | |
| 1177 | my ($a3,$b3,$c3,$d3)=map(($_&~3)+(($_+1)&3),($a2,$b2,$c2,$d2)); | |
| 1178 | my @x=map("\"$_\"",@xx); | |
| 1179 | ||
| 1180 | ( | |
| 1181 | "&vpaddd (@x[$a0],@x[$a0],@x[$b0])", # Q1 | |
| 1182 | "&vpaddd (@x[$a1],@x[$a1],@x[$b1])", # Q2 | |
| 1183 | "&vpaddd (@x[$a2],@x[$a2],@x[$b2])", # Q3 | |
| 1184 | "&vpaddd (@x[$a3],@x[$a3],@x[$b3])", # Q4 | |
| 1185 | "&vpxor (@x[$d0],@x[$a0],@x[$d0])", | |
| 1186 | "&vpxor (@x[$d1],@x[$a1],@x[$d1])", | |
| 1187 | "&vpxor (@x[$d2],@x[$a2],@x[$d2])", | |
| 1188 | "&vpxor (@x[$d3],@x[$a3],@x[$d3])", | |
| 1189 | "&vprotd (@x[$d0],@x[$d0],16)", | |
| 1190 | "&vprotd (@x[$d1],@x[$d1],16)", | |
| 1191 | "&vprotd (@x[$d2],@x[$d2],16)", | |
| 1192 | "&vprotd (@x[$d3],@x[$d3],16)", | |
| 1193 | ||
| 1194 | "&vpaddd (@x[$c0],@x[$c0],@x[$d0])", | |
| 1195 | "&vpaddd (@x[$c1],@x[$c1],@x[$d1])", | |
| 1196 | "&vpaddd (@x[$c2],@x[$c2],@x[$d2])", | |
| 1197 | "&vpaddd (@x[$c3],@x[$c3],@x[$d3])", | |
| 1198 | "&vpxor (@x[$b0],@x[$c0],@x[$b0])", | |
| 1199 | "&vpxor (@x[$b1],@x[$c1],@x[$b1])", | |
| 1200 | "&vpxor (@x[$b2],@x[$b2],@x[$c2])", # flip | |
| 1201 | "&vpxor (@x[$b3],@x[$b3],@x[$c3])", # flip | |
| 1202 | "&vprotd (@x[$b0],@x[$b0],12)", | |
| 1203 | "&vprotd (@x[$b1],@x[$b1],12)", | |
| 1204 | "&vprotd (@x[$b2],@x[$b2],12)", | |
| 1205 | "&vprotd (@x[$b3],@x[$b3],12)", | |
| 1206 | ||
| 1207 | "&vpaddd (@x[$a0],@x[$b0],@x[$a0])", # flip | |
| 1208 | "&vpaddd (@x[$a1],@x[$b1],@x[$a1])", # flip | |
| 1209 | "&vpaddd (@x[$a2],@x[$a2],@x[$b2])", | |
| 1210 | "&vpaddd (@x[$a3],@x[$a3],@x[$b3])", | |
| 1211 | "&vpxor (@x[$d0],@x[$a0],@x[$d0])", | |
| 1212 | "&vpxor (@x[$d1],@x[$a1],@x[$d1])", | |
| 1213 | "&vpxor (@x[$d2],@x[$a2],@x[$d2])", | |
| 1214 | "&vpxor (@x[$d3],@x[$a3],@x[$d3])", | |
| 1215 | "&vprotd (@x[$d0],@x[$d0],8)", | |
| 1216 | "&vprotd (@x[$d1],@x[$d1],8)", | |
| 1217 | "&vprotd (@x[$d2],@x[$d2],8)", | |
| 1218 | "&vprotd (@x[$d3],@x[$d3],8)", | |
| 1219 | ||
| 1220 | "&vpaddd (@x[$c0],@x[$c0],@x[$d0])", | |
| 1221 | "&vpaddd (@x[$c1],@x[$c1],@x[$d1])", | |
| 1222 | "&vpaddd (@x[$c2],@x[$c2],@x[$d2])", | |
| 1223 | "&vpaddd (@x[$c3],@x[$c3],@x[$d3])", | |
| 1224 | "&vpxor (@x[$b0],@x[$c0],@x[$b0])", | |
| 1225 | "&vpxor (@x[$b1],@x[$c1],@x[$b1])", | |
| 1226 | "&vpxor (@x[$b2],@x[$b2],@x[$c2])", # flip | |
| 1227 | "&vpxor (@x[$b3],@x[$b3],@x[$c3])", # flip | |
| 1228 | "&vprotd (@x[$b0],@x[$b0],7)", | |
| 1229 | "&vprotd (@x[$b1],@x[$b1],7)", | |
| 1230 | "&vprotd (@x[$b2],@x[$b2],7)", | |
| 1231 | "&vprotd (@x[$b3],@x[$b3],7)" | |
| 1232 | ); | |
| 1233 | } | |
| 1234 | ||
| 1235 | my $xframe = $win64 ? 0xa0 : 0; | |
| 1236 | ||
| 1237 | $code.=<<___; | |
| 1238 | .type ChaCha20_4xop,\@function,5 | |
| 1239 | .align 32 | |
| 1240 | ChaCha20_4xop: | |
| 1241 | .LChaCha20_4xop: | |
| 1242 | lea -0x78(%rsp),%r11 | |
| 1243 | sub \$0x148+$xframe,%rsp | |
| 1244 | ___ | |
| 1245 | ################ stack layout | |
| 1246 | # +0x00 SIMD equivalent of @x[8-12] | |
| 1247 | # ... | |
| 1248 | # +0x40 constant copy of key[0-2] smashed by lanes | |
| 1249 | # ... | |
| 1250 | # +0x100 SIMD counters (with nonce smashed by lanes) | |
| 1251 | # ... | |
| 1252 | # +0x140 | |
| 1253 | $code.=<<___ if ($win64); | |
| 1254 | movaps %xmm6,-0x30(%r11) | |
| 1255 | movaps %xmm7,-0x20(%r11) | |
| 1256 | movaps %xmm8,-0x10(%r11) | |
| 1257 | movaps %xmm9,0x00(%r11) | |
| 1258 | movaps %xmm10,0x10(%r11) | |
| 1259 | movaps %xmm11,0x20(%r11) | |
| 1260 | movaps %xmm12,0x30(%r11) | |
| 1261 | movaps %xmm13,0x40(%r11) | |
| 1262 | movaps %xmm14,0x50(%r11) | |
| 1263 | movaps %xmm15,0x60(%r11) | |
| 1264 | ___ | |
| 1265 | $code.=<<___; | |
| 1266 | vzeroupper | |
| 1267 | ||
| 1268 | vmovdqa .Lsigma(%rip),$xa3 # key[0] | |
| 1269 | vmovdqu ($key),$xb3 # key[1] | |
| 1270 | vmovdqu 16($key),$xt3 # key[2] | |
| 1271 | vmovdqu ($counter),$xd3 # key[3] | |
| 1272 | lea 0x100(%rsp),%rcx # size optimization | |
| 1273 | ||
| 1274 | vpshufd \$0x00,$xa3,$xa0 # smash key by lanes... | |
| 1275 | vpshufd \$0x55,$xa3,$xa1 | |
| 1276 | vmovdqa $xa0,0x40(%rsp) # ... and offload | |
| 1277 | vpshufd \$0xaa,$xa3,$xa2 | |
| 1278 | vmovdqa $xa1,0x50(%rsp) | |
| 1279 | vpshufd \$0xff,$xa3,$xa3 | |
| 1280 | vmovdqa $xa2,0x60(%rsp) | |
| 1281 | vmovdqa $xa3,0x70(%rsp) | |
| 1282 | ||
| 1283 | vpshufd \$0x00,$xb3,$xb0 | |
| 1284 | vpshufd \$0x55,$xb3,$xb1 | |
| 1285 | vmovdqa $xb0,0x80-0x100(%rcx) | |
| 1286 | vpshufd \$0xaa,$xb3,$xb2 | |
| 1287 | vmovdqa $xb1,0x90-0x100(%rcx) | |
| 1288 | vpshufd \$0xff,$xb3,$xb3 | |
| 1289 | vmovdqa $xb2,0xa0-0x100(%rcx) | |
| 1290 | vmovdqa $xb3,0xb0-0x100(%rcx) | |
| 1291 | ||
| 1292 | vpshufd \$0x00,$xt3,$xt0 # "$xc0" | |
| 1293 | vpshufd \$0x55,$xt3,$xt1 # "$xc1" | |
| 1294 | vmovdqa $xt0,0xc0-0x100(%rcx) | |
| 1295 | vpshufd \$0xaa,$xt3,$xt2 # "$xc2" | |
| 1296 | vmovdqa $xt1,0xd0-0x100(%rcx) | |
| 1297 | vpshufd \$0xff,$xt3,$xt3 # "$xc3" | |
| 1298 | vmovdqa $xt2,0xe0-0x100(%rcx) | |
| 1299 | vmovdqa $xt3,0xf0-0x100(%rcx) | |
| 1300 | ||
| 1301 | vpshufd \$0x00,$xd3,$xd0 | |
| 1302 | vpshufd \$0x55,$xd3,$xd1 | |
| 1303 | vpaddd .Linc(%rip),$xd0,$xd0 # don't save counters yet | |
| 1304 | vpshufd \$0xaa,$xd3,$xd2 | |
| 1305 | vmovdqa $xd1,0x110-0x100(%rcx) | |
| 1306 | vpshufd \$0xff,$xd3,$xd3 | |
| 1307 | vmovdqa $xd2,0x120-0x100(%rcx) | |
| 1308 | vmovdqa $xd3,0x130-0x100(%rcx) | |
| 1309 | ||
| 1310 | jmp .Loop_enter4xop | |
| 1311 | ||
| 1312 | .align 32 | |
| 1313 | .Loop_outer4xop: | |
| 1314 | vmovdqa 0x40(%rsp),$xa0 # re-load smashed key | |
| 1315 | vmovdqa 0x50(%rsp),$xa1 | |
| 1316 | vmovdqa 0x60(%rsp),$xa2 | |
| 1317 | vmovdqa 0x70(%rsp),$xa3 | |
| 1318 | vmovdqa 0x80-0x100(%rcx),$xb0 | |
| 1319 | vmovdqa 0x90-0x100(%rcx),$xb1 | |
| 1320 | vmovdqa 0xa0-0x100(%rcx),$xb2 | |
| 1321 | vmovdqa 0xb0-0x100(%rcx),$xb3 | |
| 1322 | vmovdqa 0xc0-0x100(%rcx),$xt0 # "$xc0" | |
| 1323 | vmovdqa 0xd0-0x100(%rcx),$xt1 # "$xc1" | |
| 1324 | vmovdqa 0xe0-0x100(%rcx),$xt2 # "$xc2" | |
| 1325 | vmovdqa 0xf0-0x100(%rcx),$xt3 # "$xc3" | |
| 1326 | vmovdqa 0x100-0x100(%rcx),$xd0 | |
| 1327 | vmovdqa 0x110-0x100(%rcx),$xd1 | |
| 1328 | vmovdqa 0x120-0x100(%rcx),$xd2 | |
| 1329 | vmovdqa 0x130-0x100(%rcx),$xd3 | |
| 1330 | vpaddd .Lfour(%rip),$xd0,$xd0 # next SIMD counters | |
| 1331 | ||
| 1332 | .Loop_enter4xop: | |
| 1333 | mov \$10,%eax | |
| 1334 | vmovdqa $xd0,0x100-0x100(%rcx) # save SIMD counters | |
| 1335 | jmp .Loop4xop | |
| 1336 | ||
| 1337 | .align 32 | |
| 1338 | .Loop4xop: | |
| 1339 | ___ | |
| 1340 | foreach (&XOP_lane_ROUND(0, 4, 8,12)) { eval; } | |
| 1341 | foreach (&XOP_lane_ROUND(0, 5,10,15)) { eval; } | |
| 1342 | $code.=<<___; | |
| 1343 | dec %eax | |
| 1344 | jnz .Loop4xop | |
| 1345 | ||
| 1346 | vpaddd 0x40(%rsp),$xa0,$xa0 # accumulate key material | |
| 1347 | vpaddd 0x50(%rsp),$xa1,$xa1 | |
| 1348 | vpaddd 0x60(%rsp),$xa2,$xa2 | |
| 1349 | vpaddd 0x70(%rsp),$xa3,$xa3 | |
| 1350 | ||
| 1351 | vmovdqa $xt2,0x20(%rsp) # offload $xc2,3 | |
| 1352 | vmovdqa $xt3,0x30(%rsp) | |
| 1353 | ||
| 1354 | vpunpckldq $xa1,$xa0,$xt2 # "de-interlace" data | |
| 1355 | vpunpckldq $xa3,$xa2,$xt3 | |
| 1356 | vpunpckhdq $xa1,$xa0,$xa0 | |
| 1357 | vpunpckhdq $xa3,$xa2,$xa2 | |
| 1358 | vpunpcklqdq $xt3,$xt2,$xa1 # "a0" | |
| 1359 | vpunpckhqdq $xt3,$xt2,$xt2 # "a1" | |
| 1360 | vpunpcklqdq $xa2,$xa0,$xa3 # "a2" | |
| 1361 | vpunpckhqdq $xa2,$xa0,$xa0 # "a3" | |
| 1362 | ___ | |
| 1363 | ($xa0,$xa1,$xa2,$xa3,$xt2)=($xa1,$xt2,$xa3,$xa0,$xa2); | |
| 1364 | $code.=<<___; | |
| 1365 | vpaddd 0x80-0x100(%rcx),$xb0,$xb0 | |
| 1366 | vpaddd 0x90-0x100(%rcx),$xb1,$xb1 | |
| 1367 | vpaddd 0xa0-0x100(%rcx),$xb2,$xb2 | |
| 1368 | vpaddd 0xb0-0x100(%rcx),$xb3,$xb3 | |
| 1369 | ||
| 1370 | vmovdqa $xa0,0x00(%rsp) # offload $xa0,1 | |
| 1371 | vmovdqa $xa1,0x10(%rsp) | |
| 1372 | vmovdqa 0x20(%rsp),$xa0 # "xc2" | |
| 1373 | vmovdqa 0x30(%rsp),$xa1 # "xc3" | |
| 1374 | ||
| 1375 | vpunpckldq $xb1,$xb0,$xt2 | |
| 1376 | vpunpckldq $xb3,$xb2,$xt3 | |
| 1377 | vpunpckhdq $xb1,$xb0,$xb0 | |
| 1378 | vpunpckhdq $xb3,$xb2,$xb2 | |
| 1379 | vpunpcklqdq $xt3,$xt2,$xb1 # "b0" | |
| 1380 | vpunpckhqdq $xt3,$xt2,$xt2 # "b1" | |
| 1381 | vpunpcklqdq $xb2,$xb0,$xb3 # "b2" | |
| 1382 | vpunpckhqdq $xb2,$xb0,$xb0 # "b3" | |
| 1383 | ___ | |
| 1384 | ($xb0,$xb1,$xb2,$xb3,$xt2)=($xb1,$xt2,$xb3,$xb0,$xb2); | |
| 1385 | my ($xc0,$xc1,$xc2,$xc3)=($xt0,$xt1,$xa0,$xa1); | |
| 1386 | $code.=<<___; | |
| 1387 | vpaddd 0xc0-0x100(%rcx),$xc0,$xc0 | |
| 1388 | vpaddd 0xd0-0x100(%rcx),$xc1,$xc1 | |
| 1389 | vpaddd 0xe0-0x100(%rcx),$xc2,$xc2 | |
| 1390 | vpaddd 0xf0-0x100(%rcx),$xc3,$xc3 | |
| 1391 | ||
| 1392 | vpunpckldq $xc1,$xc0,$xt2 | |
| 1393 | vpunpckldq $xc3,$xc2,$xt3 | |
| 1394 | vpunpckhdq $xc1,$xc0,$xc0 | |
| 1395 | vpunpckhdq $xc3,$xc2,$xc2 | |
| 1396 | vpunpcklqdq $xt3,$xt2,$xc1 # "c0" | |
| 1397 | vpunpckhqdq $xt3,$xt2,$xt2 # "c1" | |
| 1398 | vpunpcklqdq $xc2,$xc0,$xc3 # "c2" | |
| 1399 | vpunpckhqdq $xc2,$xc0,$xc0 # "c3" | |
| 1400 | ___ | |
| 1401 | ($xc0,$xc1,$xc2,$xc3,$xt2)=($xc1,$xt2,$xc3,$xc0,$xc2); | |
| 1402 | $code.=<<___; | |
| 1403 | vpaddd 0x100-0x100(%rcx),$xd0,$xd0 | |
| 1404 | vpaddd 0x110-0x100(%rcx),$xd1,$xd1 | |
| 1405 | vpaddd 0x120-0x100(%rcx),$xd2,$xd2 | |
| 1406 | vpaddd 0x130-0x100(%rcx),$xd3,$xd3 | |
| 1407 | ||
| 1408 | vpunpckldq $xd1,$xd0,$xt2 | |
| 1409 | vpunpckldq $xd3,$xd2,$xt3 | |
| 1410 | vpunpckhdq $xd1,$xd0,$xd0 | |
| 1411 | vpunpckhdq $xd3,$xd2,$xd2 | |
| 1412 | vpunpcklqdq $xt3,$xt2,$xd1 # "d0" | |
| 1413 | vpunpckhqdq $xt3,$xt2,$xt2 # "d1" | |
| 1414 | vpunpcklqdq $xd2,$xd0,$xd3 # "d2" | |
| 1415 | vpunpckhqdq $xd2,$xd0,$xd0 # "d3" | |
| 1416 | ___ | |
| 1417 | ($xd0,$xd1,$xd2,$xd3,$xt2)=($xd1,$xt2,$xd3,$xd0,$xd2); | |
| 1418 | ($xa0,$xa1)=($xt2,$xt3); | |
| 1419 | $code.=<<___; | |
| 1420 | vmovdqa 0x00(%rsp),$xa0 # restore $xa0,1 | |
| 1421 | vmovdqa 0x10(%rsp),$xa1 | |
| 1422 | ||
| 1423 | cmp \$64*4,$len | |
| 1424 | jb .Ltail4xop | |
| 1425 | ||
| 1426 | vpxor 0x00($inp),$xa0,$xa0 # xor with input | |
| 1427 | vpxor 0x10($inp),$xb0,$xb0 | |
| 1428 | vpxor 0x20($inp),$xc0,$xc0 | |
| 1429 | vpxor 0x30($inp),$xd0,$xd0 | |
| 1430 | vpxor 0x40($inp),$xa1,$xa1 | |
| 1431 | vpxor 0x50($inp),$xb1,$xb1 | |
| 1432 | vpxor 0x60($inp),$xc1,$xc1 | |
| 1433 | vpxor 0x70($inp),$xd1,$xd1 | |
| 1434 | lea 0x80($inp),$inp # size optimization | |
| 1435 | vpxor 0x00($inp),$xa2,$xa2 | |
| 1436 | vpxor 0x10($inp),$xb2,$xb2 | |
| 1437 | vpxor 0x20($inp),$xc2,$xc2 | |
| 1438 | vpxor 0x30($inp),$xd2,$xd2 | |
| 1439 | vpxor 0x40($inp),$xa3,$xa3 | |
| 1440 | vpxor 0x50($inp),$xb3,$xb3 | |
| 1441 | vpxor 0x60($inp),$xc3,$xc3 | |
| 1442 | vpxor 0x70($inp),$xd3,$xd3 | |
| 1443 | lea 0x80($inp),$inp # inp+=64*4 | |
| 1444 | ||
| 1445 | vmovdqu $xa0,0x00($out) | |
| 1446 | vmovdqu $xb0,0x10($out) | |
| 1447 | vmovdqu $xc0,0x20($out) | |
| 1448 | vmovdqu $xd0,0x30($out) | |
| 1449 | vmovdqu $xa1,0x40($out) | |
| 1450 | vmovdqu $xb1,0x50($out) | |
| 1451 | vmovdqu $xc1,0x60($out) | |
| 1452 | vmovdqu $xd1,0x70($out) | |
| 1453 | lea 0x80($out),$out # size optimization | |
| 1454 | vmovdqu $xa2,0x00($out) | |
| 1455 | vmovdqu $xb2,0x10($out) | |
| 1456 | vmovdqu $xc2,0x20($out) | |
| 1457 | vmovdqu $xd2,0x30($out) | |
| 1458 | vmovdqu $xa3,0x40($out) | |
| 1459 | vmovdqu $xb3,0x50($out) | |
| 1460 | vmovdqu $xc3,0x60($out) | |
| 1461 | vmovdqu $xd3,0x70($out) | |
| 1462 | lea 0x80($out),$out # out+=64*4 | |
| 1463 | ||
| 1464 | sub \$64*4,$len | |
| 1465 | jnz .Loop_outer4xop | |
| 1466 | ||
| 1467 | jmp .Ldone4xop | |
| 1468 | ||
| 1469 | .align 32 | |
| 1470 | .Ltail4xop: | |
| 1471 | cmp \$192,$len | |
| 1472 | jae .L192_or_more4xop | |
| 1473 | cmp \$128,$len | |
| 1474 | jae .L128_or_more4xop | |
| 1475 | cmp \$64,$len | |
| 1476 | jae .L64_or_more4xop | |
| 1477 | ||
| 1478 | xor %r10,%r10 | |
| 1479 | vmovdqa $xa0,0x00(%rsp) | |
| 1480 | vmovdqa $xb0,0x10(%rsp) | |
| 1481 | vmovdqa $xc0,0x20(%rsp) | |
| 1482 | vmovdqa $xd0,0x30(%rsp) | |
| 1483 | jmp .Loop_tail4xop | |
| 1484 | ||
| 1485 | .align 32 | |
| 1486 | .L64_or_more4xop: | |
| 1487 | vpxor 0x00($inp),$xa0,$xa0 # xor with input | |
| 1488 | vpxor 0x10($inp),$xb0,$xb0 | |
| 1489 | vpxor 0x20($inp),$xc0,$xc0 | |
| 1490 | vpxor 0x30($inp),$xd0,$xd0 | |
| 1491 | vmovdqu $xa0,0x00($out) | |
| 1492 | vmovdqu $xb0,0x10($out) | |
| 1493 | vmovdqu $xc0,0x20($out) | |
| 1494 | vmovdqu $xd0,0x30($out) | |
| 1495 | je .Ldone4xop | |
| 1496 | ||
| 1497 | lea 0x40($inp),$inp # inp+=64*1 | |
| 1498 | vmovdqa $xa1,0x00(%rsp) | |
| 1499 | xor %r10,%r10 | |
| 1500 | vmovdqa $xb1,0x10(%rsp) | |
| 1501 | lea 0x40($out),$out # out+=64*1 | |
| 1502 | vmovdqa $xc1,0x20(%rsp) | |
| 1503 | sub \$64,$len # len-=64*1 | |
| 1504 | vmovdqa $xd1,0x30(%rsp) | |
| 1505 | jmp .Loop_tail4xop | |
| 1506 | ||
| 1507 | .align 32 | |
| 1508 | .L128_or_more4xop: | |
| 1509 | vpxor 0x00($inp),$xa0,$xa0 # xor with input | |
| 1510 | vpxor 0x10($inp),$xb0,$xb0 | |
| 1511 | vpxor 0x20($inp),$xc0,$xc0 | |
| 1512 | vpxor 0x30($inp),$xd0,$xd0 | |
| 1513 | vpxor 0x40($inp),$xa1,$xa1 | |
| 1514 | vpxor 0x50($inp),$xb1,$xb1 | |
| 1515 | vpxor 0x60($inp),$xc1,$xc1 | |
| 1516 | vpxor 0x70($inp),$xd1,$xd1 | |
| 1517 | ||
| 1518 | vmovdqu $xa0,0x00($out) | |
| 1519 | vmovdqu $xb0,0x10($out) | |
| 1520 | vmovdqu $xc0,0x20($out) | |
| 1521 | vmovdqu $xd0,0x30($out) | |
| 1522 | vmovdqu $xa1,0x40($out) | |
| 1523 | vmovdqu $xb1,0x50($out) | |
| 1524 | vmovdqu $xc1,0x60($out) | |
| 1525 | vmovdqu $xd1,0x70($out) | |
| 1526 | je .Ldone4xop | |
| 1527 | ||
| 1528 | lea 0x80($inp),$inp # inp+=64*2 | |
| 1529 | vmovdqa $xa2,0x00(%rsp) | |
| 1530 | xor %r10,%r10 | |
| 1531 | vmovdqa $xb2,0x10(%rsp) | |
| 1532 | lea 0x80($out),$out # out+=64*2 | |
| 1533 | vmovdqa $xc2,0x20(%rsp) | |
| 1534 | sub \$128,$len # len-=64*2 | |
| 1535 | vmovdqa $xd2,0x30(%rsp) | |
| 1536 | jmp .Loop_tail4xop | |
| 1537 | ||
| 1538 | .align 32 | |
| 1539 | .L192_or_more4xop: | |
| 1540 | vpxor 0x00($inp),$xa0,$xa0 # xor with input | |
| 1541 | vpxor 0x10($inp),$xb0,$xb0 | |
| 1542 | vpxor 0x20($inp),$xc0,$xc0 | |
| 1543 | vpxor 0x30($inp),$xd0,$xd0 | |
| 1544 | vpxor 0x40($inp),$xa1,$xa1 | |
| 1545 | vpxor 0x50($inp),$xb1,$xb1 | |
| 1546 | vpxor 0x60($inp),$xc1,$xc1 | |
| 1547 | vpxor 0x70($inp),$xd1,$xd1 | |
| 1548 | lea 0x80($inp),$inp # size optimization | |
| 1549 | vpxor 0x00($inp),$xa2,$xa2 | |
| 1550 | vpxor 0x10($inp),$xb2,$xb2 | |
| 1551 | vpxor 0x20($inp),$xc2,$xc2 | |
| 1552 | vpxor 0x30($inp),$xd2,$xd2 | |
| 1553 | ||
| 1554 | vmovdqu $xa0,0x00($out) | |
| 1555 | vmovdqu $xb0,0x10($out) | |
| 1556 | vmovdqu $xc0,0x20($out) | |
| 1557 | vmovdqu $xd0,0x30($out) | |
| 1558 | vmovdqu $xa1,0x40($out) | |
| 1559 | vmovdqu $xb1,0x50($out) | |
| 1560 | vmovdqu $xc1,0x60($out) | |
| 1561 | vmovdqu $xd1,0x70($out) | |
| 1562 | lea 0x80($out),$out # size optimization | |
| 1563 | vmovdqu $xa2,0x00($out) | |
| 1564 | vmovdqu $xb2,0x10($out) | |
| 1565 | vmovdqu $xc2,0x20($out) | |
| 1566 | vmovdqu $xd2,0x30($out) | |
| 1567 | je .Ldone4xop | |
| 1568 | ||
| 1569 | lea 0x40($inp),$inp # inp+=64*3 | |
| f2188228 | 1570 | vmovdqa $xa3,0x00(%rsp) |
| a98c648e | 1571 | xor %r10,%r10 |
| f2188228 | 1572 | vmovdqa $xb3,0x10(%rsp) |
| a98c648e | 1573 | lea 0x40($out),$out # out+=64*3 |
| f2188228 | 1574 | vmovdqa $xc3,0x20(%rsp) |
| a98c648e | 1575 | sub \$192,$len # len-=64*3 |
| f2188228 | 1576 | vmovdqa $xd3,0x30(%rsp) |
| a98c648e AP |
1577 | |
| 1578 | .Loop_tail4xop: | |
| 1579 | movzb ($inp,%r10),%eax | |
| 1580 | movzb (%rsp,%r10),%ecx | |
| 1581 | lea 1(%r10),%r10 | |
| 1582 | xor %ecx,%eax | |
| 1583 | mov %al,-1($out,%r10) | |
| 1584 | dec $len | |
| 1585 | jnz .Loop_tail4xop | |
| 1586 | ||
| 1587 | .Ldone4xop: | |
| 1588 | vzeroupper | |
| 1589 | ___ | |
| 1590 | $code.=<<___ if ($win64); | |
| 1591 | lea 0x140+0x30(%rsp),%r11 | |
| 1592 | movaps -0x30(%r11),%xmm6 | |
| 1593 | movaps -0x20(%r11),%xmm7 | |
| 1594 | movaps -0x10(%r11),%xmm8 | |
| 1595 | movaps 0x00(%r11),%xmm9 | |
| 1596 | movaps 0x10(%r11),%xmm10 | |
| 1597 | movaps 0x20(%r11),%xmm11 | |
| 1598 | movaps 0x30(%r11),%xmm12 | |
| 1599 | movaps 0x40(%r11),%xmm13 | |
| 1600 | movaps 0x50(%r11),%xmm14 | |
| 1601 | movaps 0x60(%r11),%xmm15 | |
| 1602 | ___ | |
| 1603 | $code.=<<___; | |
| 1604 | add \$0x148+$xframe,%rsp | |
| 1605 | ret | |
| 1606 | .size ChaCha20_4xop,.-ChaCha20_4xop | |
| 1607 | ___ | |
| 1608 | } | |
| 1609 | ||
| 1610 | ######################################################################## | |
| 1611 | # AVX2 code path | |
| 1612 | if ($avx>1) { | |
| 1613 | my ($xb0,$xb1,$xb2,$xb3, $xd0,$xd1,$xd2,$xd3, | |
| 1614 | $xa0,$xa1,$xa2,$xa3, $xt0,$xt1,$xt2,$xt3)=map("%ymm$_",(0..15)); | |
| 1615 | my @xx=($xa0,$xa1,$xa2,$xa3, $xb0,$xb1,$xb2,$xb3, | |
| 1616 | "%nox","%nox","%nox","%nox", $xd0,$xd1,$xd2,$xd3); | |
| 1617 | ||
| 1618 | sub AVX2_lane_ROUND { | |
| 1619 | my ($a0,$b0,$c0,$d0)=@_; | |
| 1620 | my ($a1,$b1,$c1,$d1)=map(($_&~3)+(($_+1)&3),($a0,$b0,$c0,$d0)); | |
| 1621 | my ($a2,$b2,$c2,$d2)=map(($_&~3)+(($_+1)&3),($a1,$b1,$c1,$d1)); | |
| 1622 | my ($a3,$b3,$c3,$d3)=map(($_&~3)+(($_+1)&3),($a2,$b2,$c2,$d2)); | |
| 1623 | my ($xc,$xc_,$t0,$t1)=map("\"$_\"",$xt0,$xt1,$xt2,$xt3); | |
| 1624 | my @x=map("\"$_\"",@xx); | |
| 1625 | ||
| 1626 | # Consider order in which variables are addressed by their | |
| 1627 | # index: | |
| 1628 | # | |
| 1629 | # a b c d | |
| 1630 | # | |
| 1631 | # 0 4 8 12 < even round | |
| 1632 | # 1 5 9 13 | |
| 1633 | # 2 6 10 14 | |
| 1634 | # 3 7 11 15 | |
| 1635 | # 0 5 10 15 < odd round | |
| 1636 | # 1 6 11 12 | |
| 1637 | # 2 7 8 13 | |
| 1638 | # 3 4 9 14 | |
| 1639 | # | |
| 1640 | # 'a', 'b' and 'd's are permanently allocated in registers, | |
| 1641 | # @x[0..7,12..15], while 'c's are maintained in memory. If | |
| 1642 | # you observe 'c' column, you'll notice that pair of 'c's is | |
| 1643 | # invariant between rounds. This means that we have to reload | |
| 1644 | # them once per round, in the middle. This is why you'll see | |
| 1645 | # bunch of 'c' stores and loads in the middle, but none in | |
| 1646 | # the beginning or end. | |
| 1647 | ||
| 1648 | ( | |
| 1649 | "&vpaddd (@x[$a0],@x[$a0],@x[$b0])", # Q1 | |
| 1650 | "&vpxor (@x[$d0],@x[$a0],@x[$d0])", | |
| 1651 | "&vpshufb (@x[$d0],@x[$d0],$t1)", | |
| 1652 | "&vpaddd (@x[$a1],@x[$a1],@x[$b1])", # Q2 | |
| 1653 | "&vpxor (@x[$d1],@x[$a1],@x[$d1])", | |
| 1654 | "&vpshufb (@x[$d1],@x[$d1],$t1)", | |
| 1655 | ||
| 1656 | "&vpaddd ($xc,$xc,@x[$d0])", | |
| 1657 | "&vpxor (@x[$b0],$xc,@x[$b0])", | |
| 1658 | "&vpslld ($t0,@x[$b0],12)", | |
| 1659 | "&vpsrld (@x[$b0],@x[$b0],20)", | |
| 1660 | "&vpor (@x[$b0],$t0,@x[$b0])", | |
| 1661 | "&vbroadcasti128($t0,'(%r11)')", # .Lrot24(%rip) | |
| 1662 | "&vpaddd ($xc_,$xc_,@x[$d1])", | |
| 1663 | "&vpxor (@x[$b1],$xc_,@x[$b1])", | |
| 1664 | "&vpslld ($t1,@x[$b1],12)", | |
| 1665 | "&vpsrld (@x[$b1],@x[$b1],20)", | |
| 1666 | "&vpor (@x[$b1],$t1,@x[$b1])", | |
| 1667 | ||
| 1668 | "&vpaddd (@x[$a0],@x[$a0],@x[$b0])", | |
| 1669 | "&vpxor (@x[$d0],@x[$a0],@x[$d0])", | |
| 1670 | "&vpshufb (@x[$d0],@x[$d0],$t0)", | |
| 1671 | "&vpaddd (@x[$a1],@x[$a1],@x[$b1])", | |
| 1672 | "&vpxor (@x[$d1],@x[$a1],@x[$d1])", | |
| 1673 | "&vpshufb (@x[$d1],@x[$d1],$t0)", | |
| 1674 | ||
| 1675 | "&vpaddd ($xc,$xc,@x[$d0])", | |
| 1676 | "&vpxor (@x[$b0],$xc,@x[$b0])", | |
| 1677 | "&vpslld ($t1,@x[$b0],7)", | |
| 1678 | "&vpsrld (@x[$b0],@x[$b0],25)", | |
| 1679 | "&vpor (@x[$b0],$t1,@x[$b0])", | |
| 1680 | "&vbroadcasti128($t1,'(%r10)')", # .Lrot16(%rip) | |
| 1681 | "&vpaddd ($xc_,$xc_,@x[$d1])", | |
| 1682 | "&vpxor (@x[$b1],$xc_,@x[$b1])", | |
| 1683 | "&vpslld ($t0,@x[$b1],7)", | |
| 1684 | "&vpsrld (@x[$b1],@x[$b1],25)", | |
| 1685 | "&vpor (@x[$b1],$t0,@x[$b1])", | |
| 1686 | ||
| 1687 | "&vmovdqa (\"`32*($c0-8)`(%rsp)\",$xc)", # reload pair of 'c's | |
| 1688 | "&vmovdqa (\"`32*($c1-8)`(%rsp)\",$xc_)", | |
| 1689 | "&vmovdqa ($xc,\"`32*($c2-8)`(%rsp)\")", | |
| 1690 | "&vmovdqa ($xc_,\"`32*($c3-8)`(%rsp)\")", | |
| 1691 | ||
| 1692 | "&vpaddd (@x[$a2],@x[$a2],@x[$b2])", # Q3 | |
| 1693 | "&vpxor (@x[$d2],@x[$a2],@x[$d2])", | |
| 1694 | "&vpshufb (@x[$d2],@x[$d2],$t1)", | |
| 1695 | "&vpaddd (@x[$a3],@x[$a3],@x[$b3])", # Q4 | |
| 1696 | "&vpxor (@x[$d3],@x[$a3],@x[$d3])", | |
| 1697 | "&vpshufb (@x[$d3],@x[$d3],$t1)", | |
| 1698 | ||
| 1699 | "&vpaddd ($xc,$xc,@x[$d2])", | |
| 1700 | "&vpxor (@x[$b2],$xc,@x[$b2])", | |
| 1701 | "&vpslld ($t0,@x[$b2],12)", | |
| 1702 | "&vpsrld (@x[$b2],@x[$b2],20)", | |
| 1703 | "&vpor (@x[$b2],$t0,@x[$b2])", | |
| 1704 | "&vbroadcasti128($t0,'(%r11)')", # .Lrot24(%rip) | |
| 1705 | "&vpaddd ($xc_,$xc_,@x[$d3])", | |
| 1706 | "&vpxor (@x[$b3],$xc_,@x[$b3])", | |
| 1707 | "&vpslld ($t1,@x[$b3],12)", | |
| 1708 | "&vpsrld (@x[$b3],@x[$b3],20)", | |
| 1709 | "&vpor (@x[$b3],$t1,@x[$b3])", | |
| 1710 | ||
| 1711 | "&vpaddd (@x[$a2],@x[$a2],@x[$b2])", | |
| 1712 | "&vpxor (@x[$d2],@x[$a2],@x[$d2])", | |
| 1713 | "&vpshufb (@x[$d2],@x[$d2],$t0)", | |
| 1714 | "&vpaddd (@x[$a3],@x[$a3],@x[$b3])", | |
| 1715 | "&vpxor (@x[$d3],@x[$a3],@x[$d3])", | |
| 1716 | "&vpshufb (@x[$d3],@x[$d3],$t0)", | |
| 1717 | ||
| 1718 | "&vpaddd ($xc,$xc,@x[$d2])", | |
| 1719 | "&vpxor (@x[$b2],$xc,@x[$b2])", | |
| 1720 | "&vpslld ($t1,@x[$b2],7)", | |
| 1721 | "&vpsrld (@x[$b2],@x[$b2],25)", | |
| 1722 | "&vpor (@x[$b2],$t1,@x[$b2])", | |
| 1723 | "&vbroadcasti128($t1,'(%r10)')", # .Lrot16(%rip) | |
| 1724 | "&vpaddd ($xc_,$xc_,@x[$d3])", | |
| 1725 | "&vpxor (@x[$b3],$xc_,@x[$b3])", | |
| 1726 | "&vpslld ($t0,@x[$b3],7)", | |
| 1727 | "&vpsrld (@x[$b3],@x[$b3],25)", | |
| 1728 | "&vpor (@x[$b3],$t0,@x[$b3])" | |
| 1729 | ); | |
| 1730 | } | |
| 1731 | ||
| 1732 | my $xframe = $win64 ? 0xb0 : 8; | |
| 1733 | ||
| 1734 | $code.=<<___; | |
| 1735 | .type ChaCha20_8x,\@function,5 | |
| 1736 | .align 32 | |
| 1737 | ChaCha20_8x: | |
| 1738 | .LChaCha20_8x: | |
| 1739 | mov %rsp,%r10 | |
| 1740 | sub \$0x280+$xframe,%rsp | |
| 1741 | and \$-32,%rsp | |
| 1742 | ___ | |
| 1743 | $code.=<<___ if ($win64); | |
| 1744 | lea 0x290+0x30(%rsp),%r11 | |
| 1745 | movaps %xmm6,-0x30(%r11) | |
| 1746 | movaps %xmm7,-0x20(%r11) | |
| 1747 | movaps %xmm8,-0x10(%r11) | |
| 1748 | movaps %xmm9,0x00(%r11) | |
| 1749 | movaps %xmm10,0x10(%r11) | |
| 1750 | movaps %xmm11,0x20(%r11) | |
| 1751 | movaps %xmm12,0x30(%r11) | |
| 1752 | movaps %xmm13,0x40(%r11) | |
| 1753 | movaps %xmm14,0x50(%r11) | |
| 1754 | movaps %xmm15,0x60(%r11) | |
| 1755 | ___ | |
| 1756 | $code.=<<___; | |
| 1757 | vzeroupper | |
| 1758 | mov %r10,0x280(%rsp) | |
| 1759 | ||
| 1760 | ################ stack layout | |
| 1761 | # +0x00 SIMD equivalent of @x[8-12] | |
| 1762 | # ... | |
| 1763 | # +0x80 constant copy of key[0-2] smashed by lanes | |
| 1764 | # ... | |
| 1765 | # +0x200 SIMD counters (with nonce smashed by lanes) | |
| 1766 | # ... | |
| 1767 | # +0x280 saved %rsp | |
| 1768 | ||
| 1769 | vbroadcasti128 .Lsigma(%rip),$xa3 # key[0] | |
| 1770 | vbroadcasti128 ($key),$xb3 # key[1] | |
| 1771 | vbroadcasti128 16($key),$xt3 # key[2] | |
| 1772 | vbroadcasti128 ($counter),$xd3 # key[3] | |
| 1773 | lea 0x100(%rsp),%rcx # size optimization | |
| 1774 | lea 0x200(%rsp),%rax # size optimization | |
| 1775 | lea .Lrot16(%rip),%r10 | |
| 1776 | lea .Lrot24(%rip),%r11 | |
| 1777 | ||
| 1778 | vpshufd \$0x00,$xa3,$xa0 # smash key by lanes... | |
| 1779 | vpshufd \$0x55,$xa3,$xa1 | |
| 1780 | vmovdqa $xa0,0x80-0x100(%rcx) # ... and offload | |
| 1781 | vpshufd \$0xaa,$xa3,$xa2 | |
| 1782 | vmovdqa $xa1,0xa0-0x100(%rcx) | |
| 1783 | vpshufd \$0xff,$xa3,$xa3 | |
| 1784 | vmovdqa $xa2,0xc0-0x100(%rcx) | |
| 1785 | vmovdqa $xa3,0xe0-0x100(%rcx) | |
| 1786 | ||
| 1787 | vpshufd \$0x00,$xb3,$xb0 | |
| 1788 | vpshufd \$0x55,$xb3,$xb1 | |
| 1789 | vmovdqa $xb0,0x100-0x100(%rcx) | |
| 1790 | vpshufd \$0xaa,$xb3,$xb2 | |
| 1791 | vmovdqa $xb1,0x120-0x100(%rcx) | |
| 1792 | vpshufd \$0xff,$xb3,$xb3 | |
| 1793 | vmovdqa $xb2,0x140-0x100(%rcx) | |
| 1794 | vmovdqa $xb3,0x160-0x100(%rcx) | |
| 1795 | ||
| 1796 | vpshufd \$0x00,$xt3,$xt0 # "xc0" | |
| 1797 | vpshufd \$0x55,$xt3,$xt1 # "xc1" | |
| 1798 | vmovdqa $xt0,0x180-0x200(%rax) | |
| 1799 | vpshufd \$0xaa,$xt3,$xt2 # "xc2" | |
| 1800 | vmovdqa $xt1,0x1a0-0x200(%rax) | |
| 1801 | vpshufd \$0xff,$xt3,$xt3 # "xc3" | |
| 1802 | vmovdqa $xt2,0x1c0-0x200(%rax) | |
| 1803 | vmovdqa $xt3,0x1e0-0x200(%rax) | |
| 1804 | ||
| 1805 | vpshufd \$0x00,$xd3,$xd0 | |
| 1806 | vpshufd \$0x55,$xd3,$xd1 | |
| 1807 | vpaddd .Lincy(%rip),$xd0,$xd0 # don't save counters yet | |
| 1808 | vpshufd \$0xaa,$xd3,$xd2 | |
| 1809 | vmovdqa $xd1,0x220-0x200(%rax) | |
| 1810 | vpshufd \$0xff,$xd3,$xd3 | |
| 1811 | vmovdqa $xd2,0x240-0x200(%rax) | |
| 1812 | vmovdqa $xd3,0x260-0x200(%rax) | |
| 1813 | ||
| 1814 | jmp .Loop_enter8x | |
| 1815 | ||
| 1816 | .align 32 | |
| 1817 | .Loop_outer8x: | |
| 1818 | vmovdqa 0x80-0x100(%rcx),$xa0 # re-load smashed key | |
| 1819 | vmovdqa 0xa0-0x100(%rcx),$xa1 | |
| 1820 | vmovdqa 0xc0-0x100(%rcx),$xa2 | |
| 1821 | vmovdqa 0xe0-0x100(%rcx),$xa3 | |
| 1822 | vmovdqa 0x100-0x100(%rcx),$xb0 | |
| 1823 | vmovdqa 0x120-0x100(%rcx),$xb1 | |
| 1824 | vmovdqa 0x140-0x100(%rcx),$xb2 | |
| 1825 | vmovdqa 0x160-0x100(%rcx),$xb3 | |
| 1826 | vmovdqa 0x180-0x200(%rax),$xt0 # "xc0" | |
| 1827 | vmovdqa 0x1a0-0x200(%rax),$xt1 # "xc1" | |
| 1828 | vmovdqa 0x1c0-0x200(%rax),$xt2 # "xc2" | |
| 1829 | vmovdqa 0x1e0-0x200(%rax),$xt3 # "xc3" | |
| 1830 | vmovdqa 0x200-0x200(%rax),$xd0 | |
| 1831 | vmovdqa 0x220-0x200(%rax),$xd1 | |
| 1832 | vmovdqa 0x240-0x200(%rax),$xd2 | |
| 1833 | vmovdqa 0x260-0x200(%rax),$xd3 | |
| 1834 | vpaddd .Leight(%rip),$xd0,$xd0 # next SIMD counters | |
| 1835 | ||
| 1836 | .Loop_enter8x: | |
| 1837 | vmovdqa $xt2,0x40(%rsp) # SIMD equivalent of "@x[10]" | |
| 1838 | vmovdqa $xt3,0x60(%rsp) # SIMD equivalent of "@x[11]" | |
| 1839 | vbroadcasti128 (%r10),$xt3 | |
| 1840 | vmovdqa $xd0,0x200-0x200(%rax) # save SIMD counters | |
| 1841 | mov \$10,%eax | |
| 1842 | jmp .Loop8x | |
| 1843 | ||
| 1844 | .align 32 | |
| 1845 | .Loop8x: | |
| 1846 | ___ | |
| 1847 | foreach (&AVX2_lane_ROUND(0, 4, 8,12)) { eval; } | |
| 1848 | foreach (&AVX2_lane_ROUND(0, 5,10,15)) { eval; } | |
| 1849 | $code.=<<___; | |
| 1850 | dec %eax | |
| 1851 | jnz .Loop8x | |
| 1852 | ||
| 1853 | lea 0x200(%rsp),%rax # size optimization | |
| 1854 | vpaddd 0x80-0x100(%rcx),$xa0,$xa0 # accumulate key | |
| 1855 | vpaddd 0xa0-0x100(%rcx),$xa1,$xa1 | |
| 1856 | vpaddd 0xc0-0x100(%rcx),$xa2,$xa2 | |
| 1857 | vpaddd 0xe0-0x100(%rcx),$xa3,$xa3 | |
| 1858 | ||
| 1859 | vpunpckldq $xa1,$xa0,$xt2 # "de-interlace" data | |
| 1860 | vpunpckldq $xa3,$xa2,$xt3 | |
| 1861 | vpunpckhdq $xa1,$xa0,$xa0 | |
| 1862 | vpunpckhdq $xa3,$xa2,$xa2 | |
| 1863 | vpunpcklqdq $xt3,$xt2,$xa1 # "a0" | |
| 1864 | vpunpckhqdq $xt3,$xt2,$xt2 # "a1" | |
| 1865 | vpunpcklqdq $xa2,$xa0,$xa3 # "a2" | |
| 1866 | vpunpckhqdq $xa2,$xa0,$xa0 # "a3" | |
| 1867 | ___ | |
| 1868 | ($xa0,$xa1,$xa2,$xa3,$xt2)=($xa1,$xt2,$xa3,$xa0,$xa2); | |
| 1869 | $code.=<<___; | |
| 1870 | vpaddd 0x100-0x100(%rcx),$xb0,$xb0 | |
| 1871 | vpaddd 0x120-0x100(%rcx),$xb1,$xb1 | |
| 1872 | vpaddd 0x140-0x100(%rcx),$xb2,$xb2 | |
| 1873 | vpaddd 0x160-0x100(%rcx),$xb3,$xb3 | |
| 1874 | ||
| 1875 | vpunpckldq $xb1,$xb0,$xt2 | |
| 1876 | vpunpckldq $xb3,$xb2,$xt3 | |
| 1877 | vpunpckhdq $xb1,$xb0,$xb0 | |
| 1878 | vpunpckhdq $xb3,$xb2,$xb2 | |
| 1879 | vpunpcklqdq $xt3,$xt2,$xb1 # "b0" | |
| 1880 | vpunpckhqdq $xt3,$xt2,$xt2 # "b1" | |
| 1881 | vpunpcklqdq $xb2,$xb0,$xb3 # "b2" | |
| 1882 | vpunpckhqdq $xb2,$xb0,$xb0 # "b3" | |
| 1883 | ___ | |
| 1884 | ($xb0,$xb1,$xb2,$xb3,$xt2)=($xb1,$xt2,$xb3,$xb0,$xb2); | |
| 1885 | $code.=<<___; | |
| 1886 | vperm2i128 \$0x20,$xb0,$xa0,$xt3 # "de-interlace" further | |
| 1887 | vperm2i128 \$0x31,$xb0,$xa0,$xb0 | |
| 1888 | vperm2i128 \$0x20,$xb1,$xa1,$xa0 | |
| 1889 | vperm2i128 \$0x31,$xb1,$xa1,$xb1 | |
| 1890 | vperm2i128 \$0x20,$xb2,$xa2,$xa1 | |
| 1891 | vperm2i128 \$0x31,$xb2,$xa2,$xb2 | |
| 1892 | vperm2i128 \$0x20,$xb3,$xa3,$xa2 | |
| 1893 | vperm2i128 \$0x31,$xb3,$xa3,$xb3 | |
| 1894 | ___ | |
| 1895 | ($xa0,$xa1,$xa2,$xa3,$xt3)=($xt3,$xa0,$xa1,$xa2,$xa3); | |
| 1896 | my ($xc0,$xc1,$xc2,$xc3)=($xt0,$xt1,$xa0,$xa1); | |
| 1897 | $code.=<<___; | |
| 1898 | vmovdqa $xa0,0x00(%rsp) # offload $xaN | |
| 1899 | vmovdqa $xa1,0x20(%rsp) | |
| 1900 | vmovdqa 0x40(%rsp),$xc2 # $xa0 | |
| 1901 | vmovdqa 0x60(%rsp),$xc3 # $xa1 | |
| 1902 | ||
| 1903 | vpaddd 0x180-0x200(%rax),$xc0,$xc0 | |
| 1904 | vpaddd 0x1a0-0x200(%rax),$xc1,$xc1 | |
| 1905 | vpaddd 0x1c0-0x200(%rax),$xc2,$xc2 | |
| 1906 | vpaddd 0x1e0-0x200(%rax),$xc3,$xc3 | |
| 1907 | ||
| 1908 | vpunpckldq $xc1,$xc0,$xt2 | |
| 1909 | vpunpckldq $xc3,$xc2,$xt3 | |
| 1910 | vpunpckhdq $xc1,$xc0,$xc0 | |
| 1911 | vpunpckhdq $xc3,$xc2,$xc2 | |
| 1912 | vpunpcklqdq $xt3,$xt2,$xc1 # "c0" | |
| 1913 | vpunpckhqdq $xt3,$xt2,$xt2 # "c1" | |
| 1914 | vpunpcklqdq $xc2,$xc0,$xc3 # "c2" | |
| 1915 | vpunpckhqdq $xc2,$xc0,$xc0 # "c3" | |
| 1916 | ___ | |
| 1917 | ($xc0,$xc1,$xc2,$xc3,$xt2)=($xc1,$xt2,$xc3,$xc0,$xc2); | |
| 1918 | $code.=<<___; | |
| 1919 | vpaddd 0x200-0x200(%rax),$xd0,$xd0 | |
| 1920 | vpaddd 0x220-0x200(%rax),$xd1,$xd1 | |
| 1921 | vpaddd 0x240-0x200(%rax),$xd2,$xd2 | |
| 1922 | vpaddd 0x260-0x200(%rax),$xd3,$xd3 | |
| 1923 | ||
| 1924 | vpunpckldq $xd1,$xd0,$xt2 | |
| 1925 | vpunpckldq $xd3,$xd2,$xt3 | |
| 1926 | vpunpckhdq $xd1,$xd0,$xd0 | |
| 1927 | vpunpckhdq $xd3,$xd2,$xd2 | |
| 1928 | vpunpcklqdq $xt3,$xt2,$xd1 # "d0" | |
| 1929 | vpunpckhqdq $xt3,$xt2,$xt2 # "d1" | |
| 1930 | vpunpcklqdq $xd2,$xd0,$xd3 # "d2" | |
| 1931 | vpunpckhqdq $xd2,$xd0,$xd0 # "d3" | |
| 1932 | ___ | |
| 1933 | ($xd0,$xd1,$xd2,$xd3,$xt2)=($xd1,$xt2,$xd3,$xd0,$xd2); | |
| 1934 | $code.=<<___; | |
| 1935 | vperm2i128 \$0x20,$xd0,$xc0,$xt3 # "de-interlace" further | |
| 1936 | vperm2i128 \$0x31,$xd0,$xc0,$xd0 | |
| 1937 | vperm2i128 \$0x20,$xd1,$xc1,$xc0 | |
| 1938 | vperm2i128 \$0x31,$xd1,$xc1,$xd1 | |
| 1939 | vperm2i128 \$0x20,$xd2,$xc2,$xc1 | |
| 1940 | vperm2i128 \$0x31,$xd2,$xc2,$xd2 | |
| 1941 | vperm2i128 \$0x20,$xd3,$xc3,$xc2 | |
| 1942 | vperm2i128 \$0x31,$xd3,$xc3,$xd3 | |
| 1943 | ___ | |
| 1944 | ($xc0,$xc1,$xc2,$xc3,$xt3)=($xt3,$xc0,$xc1,$xc2,$xc3); | |
| 1945 | ($xb0,$xb1,$xb2,$xb3,$xc0,$xc1,$xc2,$xc3)= | |
| 1946 | ($xc0,$xc1,$xc2,$xc3,$xb0,$xb1,$xb2,$xb3); | |
| 1947 | ($xa0,$xa1)=($xt2,$xt3); | |
| 1948 | $code.=<<___; | |
| 1949 | vmovdqa 0x00(%rsp),$xa0 # $xaN was offloaded, remember? | |
| 1950 | vmovdqa 0x20(%rsp),$xa1 | |
| 1951 | ||
| 1952 | cmp \$64*8,$len | |
| 1953 | jb .Ltail8x | |
| 1954 | ||
| 1955 | vpxor 0x00($inp),$xa0,$xa0 # xor with input | |
| 1956 | vpxor 0x20($inp),$xb0,$xb0 | |
| 1957 | vpxor 0x40($inp),$xc0,$xc0 | |
| 1958 | vpxor 0x60($inp),$xd0,$xd0 | |
| 1959 | lea 0x80($inp),$inp # size optimization | |
| 1960 | vmovdqu $xa0,0x00($out) | |
| 1961 | vmovdqu $xb0,0x20($out) | |
| 1962 | vmovdqu $xc0,0x40($out) | |
| 1963 | vmovdqu $xd0,0x60($out) | |
| 1964 | lea 0x80($out),$out # size optimization | |
| 1965 | ||
| 1966 | vpxor 0x00($inp),$xa1,$xa1 | |
| 1967 | vpxor 0x20($inp),$xb1,$xb1 | |
| 1968 | vpxor 0x40($inp),$xc1,$xc1 | |
| 1969 | vpxor 0x60($inp),$xd1,$xd1 | |
| 1970 | lea 0x80($inp),$inp # size optimization | |
| 1971 | vmovdqu $xa1,0x00($out) | |
| 1972 | vmovdqu $xb1,0x20($out) | |
| 1973 | vmovdqu $xc1,0x40($out) | |
| 1974 | vmovdqu $xd1,0x60($out) | |
| 1975 | lea 0x80($out),$out # size optimization | |
| 1976 | ||
| 1977 | vpxor 0x00($inp),$xa2,$xa2 | |
| 1978 | vpxor 0x20($inp),$xb2,$xb2 | |
| 1979 | vpxor 0x40($inp),$xc2,$xc2 | |
| 1980 | vpxor 0x60($inp),$xd2,$xd2 | |
| 1981 | lea 0x80($inp),$inp # size optimization | |
| 1982 | vmovdqu $xa2,0x00($out) | |
| 1983 | vmovdqu $xb2,0x20($out) | |
| 1984 | vmovdqu $xc2,0x40($out) | |
| 1985 | vmovdqu $xd2,0x60($out) | |
| 1986 | lea 0x80($out),$out # size optimization | |
| 1987 | ||
| 1988 | vpxor 0x00($inp),$xa3,$xa3 | |
| 1989 | vpxor 0x20($inp),$xb3,$xb3 | |
| 1990 | vpxor 0x40($inp),$xc3,$xc3 | |
| 1991 | vpxor 0x60($inp),$xd3,$xd3 | |
| 1992 | lea 0x80($inp),$inp # size optimization | |
| 1993 | vmovdqu $xa3,0x00($out) | |
| 1994 | vmovdqu $xb3,0x20($out) | |
| 1995 | vmovdqu $xc3,0x40($out) | |
| 1996 | vmovdqu $xd3,0x60($out) | |
| 1997 | lea 0x80($out),$out # size optimization | |
| 1998 | ||
| 1999 | sub \$64*8,$len | |
| 2000 | jnz .Loop_outer8x | |
| 2001 | ||
| 2002 | jmp .Ldone8x | |
| 2003 | ||
| 2004 | .Ltail8x: | |
| 2005 | cmp \$448,$len | |
| 2006 | jae .L448_or_more8x | |
| 2007 | cmp \$384,$len | |
| 2008 | jae .L384_or_more8x | |
| 2009 | cmp \$320,$len | |
| 2010 | jae .L320_or_more8x | |
| 2011 | cmp \$256,$len | |
| 2012 | jae .L256_or_more8x | |
| 2013 | cmp \$192,$len | |
| 2014 | jae .L192_or_more8x | |
| 2015 | cmp \$128,$len | |
| 2016 | jae .L128_or_more8x | |
| 2017 | cmp \$64,$len | |
| 2018 | jae .L64_or_more8x | |
| 2019 | ||
| 2020 | xor %r10,%r10 | |
| 2021 | vmovdqa $xa0,0x00(%rsp) | |
| 2022 | vmovdqa $xb0,0x20(%rsp) | |
| 2023 | jmp .Loop_tail8x | |
| 2024 | ||
| 2025 | .align 32 | |
| 2026 | .L64_or_more8x: | |
| 2027 | vpxor 0x00($inp),$xa0,$xa0 # xor with input | |
| 2028 | vpxor 0x20($inp),$xb0,$xb0 | |
| 2029 | vmovdqu $xa0,0x00($out) | |
| 2030 | vmovdqu $xb0,0x20($out) | |
| 2031 | je .Ldone8x | |
| 2032 | ||
| 2033 | lea 0x40($inp),$inp # inp+=64*1 | |
| 2034 | xor %r10,%r10 | |
| 2035 | vmovdqa $xc0,0x00(%rsp) | |
| 2036 | lea 0x40($out),$out # out+=64*1 | |
| 2037 | sub \$64,$len # len-=64*1 | |
| 2038 | vmovdqa $xd0,0x20(%rsp) | |
| 2039 | jmp .Loop_tail8x | |
| 2040 | ||
| 2041 | .align 32 | |
| 2042 | .L128_or_more8x: | |
| 2043 | vpxor 0x00($inp),$xa0,$xa0 # xor with input | |
| 2044 | vpxor 0x20($inp),$xb0,$xb0 | |
| 2045 | vpxor 0x40($inp),$xc0,$xc0 | |
| 2046 | vpxor 0x60($inp),$xd0,$xd0 | |
| 2047 | vmovdqu $xa0,0x00($out) | |
| 2048 | vmovdqu $xb0,0x20($out) | |
| 2049 | vmovdqu $xc0,0x40($out) | |
| 2050 | vmovdqu $xd0,0x60($out) | |
| 2051 | je .Ldone8x | |
| 2052 | ||
| 2053 | lea 0x80($inp),$inp # inp+=64*2 | |
| 2054 | xor %r10,%r10 | |
| 2055 | vmovdqa $xa1,0x00(%rsp) | |
| 2056 | lea 0x80($out),$out # out+=64*2 | |
| 2057 | sub \$128,$len # len-=64*2 | |
| 2058 | vmovdqa $xb1,0x20(%rsp) | |
| 2059 | jmp .Loop_tail8x | |
| 2060 | ||
| 2061 | .align 32 | |
| 2062 | .L192_or_more8x: | |
| 2063 | vpxor 0x00($inp),$xa0,$xa0 # xor with input | |
| 2064 | vpxor 0x20($inp),$xb0,$xb0 | |
| 2065 | vpxor 0x40($inp),$xc0,$xc0 | |
| 2066 | vpxor 0x60($inp),$xd0,$xd0 | |
| 2067 | vpxor 0x80($inp),$xa1,$xa1 | |
| 2068 | vpxor 0xa0($inp),$xb1,$xb1 | |
| 2069 | vmovdqu $xa0,0x00($out) | |
| 2070 | vmovdqu $xb0,0x20($out) | |
| 2071 | vmovdqu $xc0,0x40($out) | |
| 2072 | vmovdqu $xd0,0x60($out) | |
| 2073 | vmovdqu $xa1,0x80($out) | |
| 2074 | vmovdqu $xb1,0xa0($out) | |
| 2075 | je .Ldone8x | |
| 2076 | ||
| 2077 | lea 0xc0($inp),$inp # inp+=64*3 | |
| 2078 | xor %r10,%r10 | |
| 2079 | vmovdqa $xc1,0x00(%rsp) | |
| 2080 | lea 0xc0($out),$out # out+=64*3 | |
| 2081 | sub \$192,$len # len-=64*3 | |
| 2082 | vmovdqa $xd1,0x20(%rsp) | |
| 2083 | jmp .Loop_tail8x | |
| 2084 | ||
| 2085 | .align 32 | |
| 2086 | .L256_or_more8x: | |
| 2087 | vpxor 0x00($inp),$xa0,$xa0 # xor with input | |
| 2088 | vpxor 0x20($inp),$xb0,$xb0 | |
| 2089 | vpxor 0x40($inp),$xc0,$xc0 | |
| 2090 | vpxor 0x60($inp),$xd0,$xd0 | |
| 2091 | vpxor 0x80($inp),$xa1,$xa1 | |
| 2092 | vpxor 0xa0($inp),$xb1,$xb1 | |
| 2093 | vpxor 0xc0($inp),$xc1,$xc1 | |
| 2094 | vpxor 0xe0($inp),$xd1,$xd1 | |
| 2095 | vmovdqu $xa0,0x00($out) | |
| 2096 | vmovdqu $xb0,0x20($out) | |
| 2097 | vmovdqu $xc0,0x40($out) | |
| 2098 | vmovdqu $xd0,0x60($out) | |
| 2099 | vmovdqu $xa1,0x80($out) | |
| 2100 | vmovdqu $xb1,0xa0($out) | |
| 2101 | vmovdqu $xc1,0xc0($out) | |
| 2102 | vmovdqu $xd1,0xe0($out) | |
| 2103 | je .Ldone8x | |
| 2104 | ||
| 2105 | lea 0x100($inp),$inp # inp+=64*4 | |
| 2106 | xor %r10,%r10 | |
| 2107 | vmovdqa $xa2,0x00(%rsp) | |
| 2108 | lea 0x100($out),$out # out+=64*4 | |
| 2109 | sub \$256,$len # len-=64*4 | |
| 2110 | vmovdqa $xb2,0x20(%rsp) | |
| 2111 | jmp .Loop_tail8x | |
| 2112 | ||
| 2113 | .align 32 | |
| 2114 | .L320_or_more8x: | |
| 2115 | vpxor 0x00($inp),$xa0,$xa0 # xor with input | |
| 2116 | vpxor 0x20($inp),$xb0,$xb0 | |
| 2117 | vpxor 0x40($inp),$xc0,$xc0 | |
| 2118 | vpxor 0x60($inp),$xd0,$xd0 | |
| 2119 | vpxor 0x80($inp),$xa1,$xa1 | |
| 2120 | vpxor 0xa0($inp),$xb1,$xb1 | |
| 2121 | vpxor 0xc0($inp),$xc1,$xc1 | |
| 2122 | vpxor 0xe0($inp),$xd1,$xd1 | |
| 2123 | vpxor 0x100($inp),$xa2,$xa2 | |
| 2124 | vpxor 0x120($inp),$xb2,$xb2 | |
| 2125 | vmovdqu $xa0,0x00($out) | |
| 2126 | vmovdqu $xb0,0x20($out) | |
| 2127 | vmovdqu $xc0,0x40($out) | |
| 2128 | vmovdqu $xd0,0x60($out) | |
| 2129 | vmovdqu $xa1,0x80($out) | |
| 2130 | vmovdqu $xb1,0xa0($out) | |
| 2131 | vmovdqu $xc1,0xc0($out) | |
| 2132 | vmovdqu $xd1,0xe0($out) | |
| 2133 | vmovdqu $xa2,0x100($out) | |
| 2134 | vmovdqu $xb2,0x120($out) | |
| 2135 | je .Ldone8x | |
| 2136 | ||
| 2137 | lea 0x140($inp),$inp # inp+=64*5 | |
| 2138 | xor %r10,%r10 | |
| 2139 | vmovdqa $xc2,0x00(%rsp) | |
| 2140 | lea 0x140($out),$out # out+=64*5 | |
| 2141 | sub \$320,$len # len-=64*5 | |
| 2142 | vmovdqa $xd2,0x20(%rsp) | |
| 2143 | jmp .Loop_tail8x | |
| 2144 | ||
| 2145 | .align 32 | |
| 2146 | .L384_or_more8x: | |
| 2147 | vpxor 0x00($inp),$xa0,$xa0 # xor with input | |
| 2148 | vpxor 0x20($inp),$xb0,$xb0 | |
| 2149 | vpxor 0x40($inp),$xc0,$xc0 | |
| 2150 | vpxor 0x60($inp),$xd0,$xd0 | |
| 2151 | vpxor 0x80($inp),$xa1,$xa1 | |
| 2152 | vpxor 0xa0($inp),$xb1,$xb1 | |
| 2153 | vpxor 0xc0($inp),$xc1,$xc1 | |
| 2154 | vpxor 0xe0($inp),$xd1,$xd1 | |
| 2155 | vpxor 0x100($inp),$xa2,$xa2 | |
| 2156 | vpxor 0x120($inp),$xb2,$xb2 | |
| 2157 | vpxor 0x140($inp),$xc2,$xc2 | |
| 2158 | vpxor 0x160($inp),$xd2,$xd2 | |
| 2159 | vmovdqu $xa0,0x00($out) | |
| 2160 | vmovdqu $xb0,0x20($out) | |
| 2161 | vmovdqu $xc0,0x40($out) | |
| 2162 | vmovdqu $xd0,0x60($out) | |
| 2163 | vmovdqu $xa1,0x80($out) | |
| 2164 | vmovdqu $xb1,0xa0($out) | |
| 2165 | vmovdqu $xc1,0xc0($out) | |
| 2166 | vmovdqu $xd1,0xe0($out) | |
| 2167 | vmovdqu $xa2,0x100($out) | |
| 2168 | vmovdqu $xb2,0x120($out) | |
| 2169 | vmovdqu $xc2,0x140($out) | |
| 2170 | vmovdqu $xd2,0x160($out) | |
| 2171 | je .Ldone8x | |
| 2172 | ||
| 2173 | lea 0x180($inp),$inp # inp+=64*6 | |
| 2174 | xor %r10,%r10 | |
| 2175 | vmovdqa $xa3,0x00(%rsp) | |
| 2176 | lea 0x180($out),$out # out+=64*6 | |
| 2177 | sub \$384,$len # len-=64*6 | |
| 2178 | vmovdqa $xb3,0x20(%rsp) | |
| 2179 | jmp .Loop_tail8x | |
| 2180 | ||
| 2181 | .align 32 | |
| 2182 | .L448_or_more8x: | |
| 2183 | vpxor 0x00($inp),$xa0,$xa0 # xor with input | |
| 2184 | vpxor 0x20($inp),$xb0,$xb0 | |
| 2185 | vpxor 0x40($inp),$xc0,$xc0 | |
| 2186 | vpxor 0x60($inp),$xd0,$xd0 | |
| 2187 | vpxor 0x80($inp),$xa1,$xa1 | |
| 2188 | vpxor 0xa0($inp),$xb1,$xb1 | |
| 2189 | vpxor 0xc0($inp),$xc1,$xc1 | |
| 2190 | vpxor 0xe0($inp),$xd1,$xd1 | |
| 2191 | vpxor 0x100($inp),$xa2,$xa2 | |
| 2192 | vpxor 0x120($inp),$xb2,$xb2 | |
| 2193 | vpxor 0x140($inp),$xc2,$xc2 | |
| 2194 | vpxor 0x160($inp),$xd2,$xd2 | |
| 2195 | vpxor 0x180($inp),$xa3,$xa3 | |
| 2196 | vpxor 0x1a0($inp),$xb3,$xb3 | |
| 2197 | vmovdqu $xa0,0x00($out) | |
| 2198 | vmovdqu $xb0,0x20($out) | |
| 2199 | vmovdqu $xc0,0x40($out) | |
| 2200 | vmovdqu $xd0,0x60($out) | |
| 2201 | vmovdqu $xa1,0x80($out) | |
| 2202 | vmovdqu $xb1,0xa0($out) | |
| 2203 | vmovdqu $xc1,0xc0($out) | |
| 2204 | vmovdqu $xd1,0xe0($out) | |
| 2205 | vmovdqu $xa2,0x100($out) | |
| 2206 | vmovdqu $xb2,0x120($out) | |
| 2207 | vmovdqu $xc2,0x140($out) | |
| 2208 | vmovdqu $xd2,0x160($out) | |
| 2209 | vmovdqu $xa3,0x180($out) | |
| 2210 | vmovdqu $xb3,0x1a0($out) | |
| 2211 | je .Ldone8x | |
| 2212 | ||
| 2213 | lea 0x1c0($inp),$inp # inp+=64*7 | |
| 2214 | xor %r10,%r10 | |
| 2215 | vmovdqa $xc3,0x00(%rsp) | |
| 2216 | lea 0x1c0($out),$out # out+=64*7 | |
| 2217 | sub \$448,$len # len-=64*7 | |
| 2218 | vmovdqa $xd3,0x20(%rsp) | |
| 2219 | ||
| 2220 | .Loop_tail8x: | |
| 2221 | movzb ($inp,%r10),%eax | |
| 2222 | movzb (%rsp,%r10),%ecx | |
| 2223 | lea 1(%r10),%r10 | |
| 2224 | xor %ecx,%eax | |
| 2225 | mov %al,-1($out,%r10) | |
| 2226 | dec $len | |
| 2227 | jnz .Loop_tail8x | |
| 2228 | ||
| 2229 | .Ldone8x: | |
| 3c274a6e | 2230 | vzeroall |
| a98c648e AP |
2231 | ___ |
| 2232 | $code.=<<___ if ($win64); | |
| 2233 | lea 0x290+0x30(%rsp),%r11 | |
| 2234 | movaps -0x30(%r11),%xmm6 | |
| 2235 | movaps -0x20(%r11),%xmm7 | |
| 2236 | movaps -0x10(%r11),%xmm8 | |
| 2237 | movaps 0x00(%r11),%xmm9 | |
| 2238 | movaps 0x10(%r11),%xmm10 | |
| 2239 | movaps 0x20(%r11),%xmm11 | |
| 2240 | movaps 0x30(%r11),%xmm12 | |
| 2241 | movaps 0x40(%r11),%xmm13 | |
| 2242 | movaps 0x50(%r11),%xmm14 | |
| 2243 | movaps 0x60(%r11),%xmm15 | |
| 2244 | ___ | |
| 2245 | $code.=<<___; | |
| 2246 | mov 0x280(%rsp),%rsp | |
| 2247 | ret | |
| 2248 | .size ChaCha20_8x,.-ChaCha20_8x | |
| 2249 | ___ | |
| 2250 | } | |
| 2251 | ||
| abb8c44f AP |
2252 | ######################################################################## |
| 2253 | # AVX512 code paths | |
| 2254 | if ($avx>2) { | |
| 3c274a6e AP |
2255 | # This one handles shorter inputs... |
| 2256 | ||
| 2257 | my ($a,$b,$c,$d, $a_,$b_,$c_,$d_,$fourz) = map("%zmm$_",(0..3,16..20)); | |
| 2258 | my ($t0,$t1,$t2,$t3) = map("%xmm$_",(4..7)); | |
| 2259 | ||
| 2260 | sub AVX512ROUND { # critical path is 14 "SIMD ticks" per round | |
| 2261 | &vpaddd ($a,$a,$b); | |
| 2262 | &vpxord ($d,$d,$a); | |
| 2263 | &vprold ($d,$d,16); | |
| 2264 | ||
| 2265 | &vpaddd ($c,$c,$d); | |
| 2266 | &vpxord ($b,$b,$c); | |
| 2267 | &vprold ($b,$b,12); | |
| 2268 | ||
| 2269 | &vpaddd ($a,$a,$b); | |
| 2270 | &vpxord ($d,$d,$a); | |
| 2271 | &vprold ($d,$d,8); | |
| 2272 | ||
| 2273 | &vpaddd ($c,$c,$d); | |
| 2274 | &vpxord ($b,$b,$c); | |
| 2275 | &vprold ($b,$b,7); | |
| 2276 | } | |
| 2277 | ||
| 2278 | my $xframe = $win64 ? 32+32+8 : 24; | |
| 2279 | ||
| 2280 | $code.=<<___; | |
| 2281 | .type ChaCha20_avx512,\@function,5 | |
| 2282 | .align 32 | |
| 2283 | ChaCha20_avx512: | |
| 2284 | .LChaCha20_avx512: | |
| 2285 | cmp \$512,$len | |
| 2286 | ja .LChaCha20_16x | |
| 2287 | ||
| 2288 | push %rbx # just to share SEH handler, no pops | |
| 2289 | push %rbp | |
| 2290 | push %r12 | |
| 2291 | push %r13 | |
| 2292 | push %r14 | |
| 2293 | push %r15 | |
| 2294 | ||
| 2295 | sub \$64+$xframe,%rsp | |
| 2296 | ___ | |
| 2297 | $code.=<<___ if ($win64); | |
| 2298 | movaps %xmm6,64+32(%rsp) | |
| 2299 | movaps %xmm7,64+48(%rsp) | |
| 2300 | ___ | |
| 2301 | $code.=<<___; | |
| 2302 | vbroadcasti32x4 .Lsigma(%rip),$a | |
| 2303 | vbroadcasti32x4 ($key),$b | |
| 2304 | vbroadcasti32x4 16($key),$c | |
| 2305 | vbroadcasti32x4 ($counter),$d | |
| 2306 | ||
| 2307 | vmovdqa32 $a,$a_ | |
| 2308 | vmovdqa32 $b,$b_ | |
| 2309 | vmovdqa32 $c,$c_ | |
| 2310 | vpaddd .Lzeroz(%rip),$d,$d | |
| 2311 | vmovdqa32 .Lfourz(%rip),$fourz | |
| 2312 | mov \$10,$counter # reuse $counter | |
| 2313 | vmovdqa32 $d,$d_ | |
| 2314 | jmp .Loop_avx512 | |
| 2315 | ||
| 2316 | .align 16 | |
| 2317 | .Loop_outer_avx512: | |
| 2318 | vmovdqa32 $a_,$a | |
| 2319 | vmovdqa32 $b_,$b | |
| 2320 | vmovdqa32 $c_,$c | |
| 2321 | vpaddd $fourz,$d_,$d | |
| 2322 | mov \$10,$counter | |
| 2323 | vmovdqa32 $d,$d_ | |
| 2324 | jmp .Loop_avx512 | |
| 2325 | ||
| 2326 | .align 32 | |
| 2327 | .Loop_avx512: | |
| 2328 | ___ | |
| 2329 | &AVX512ROUND(); | |
| 2330 | &vpshufd ($c,$c,0b01001110); | |
| 2331 | &vpshufd ($b,$b,0b00111001); | |
| 2332 | &vpshufd ($d,$d,0b10010011); | |
| 2333 | ||
| 2334 | &AVX512ROUND(); | |
| 2335 | &vpshufd ($c,$c,0b01001110); | |
| 2336 | &vpshufd ($b,$b,0b10010011); | |
| 2337 | &vpshufd ($d,$d,0b00111001); | |
| 2338 | ||
| 2339 | &dec ($counter); | |
| 2340 | &jnz (".Loop_avx512"); | |
| 2341 | ||
| 2342 | $code.=<<___; | |
| 2343 | vpaddd $a_,$a,$a | |
| 2344 | vpaddd $b_,$b,$b | |
| 2345 | vpaddd $c_,$c,$c | |
| 2346 | vpaddd $d_,$d,$d | |
| 2347 | ||
| 2348 | sub \$64,$len | |
| 2349 | jb .Ltail64_avx512 | |
| 2350 | ||
| 2351 | vpxor 0x00($inp),%x#$a,$t0 # xor with input | |
| 2352 | vpxor 0x10($inp),%x#$b,$t1 | |
| 2353 | vpxor 0x20($inp),%x#$c,$t2 | |
| 2354 | vpxor 0x30($inp),%x#$d,$t3 | |
| 2355 | lea 0x40($inp),$inp # inp+=64 | |
| 2356 | ||
| 2357 | vmovdqu $t0,0x00($out) # write output | |
| 2358 | vmovdqu $t1,0x10($out) | |
| 2359 | vmovdqu $t2,0x20($out) | |
| 2360 | vmovdqu $t3,0x30($out) | |
| 2361 | lea 0x40($out),$out # out+=64 | |
| 2362 | ||
| 2363 | jz .Ldone_avx512 | |
| 2364 | ||
| 2365 | vextracti32x4 \$1,$a,$t0 | |
| 2366 | vextracti32x4 \$1,$b,$t1 | |
| 2367 | vextracti32x4 \$1,$c,$t2 | |
| 2368 | vextracti32x4 \$1,$d,$t3 | |
| 2369 | ||
| 2370 | sub \$64,$len | |
| 2371 | jb .Ltail_avx512 | |
| 2372 | ||
| 2373 | vpxor 0x00($inp),$t0,$t0 # xor with input | |
| 2374 | vpxor 0x10($inp),$t1,$t1 | |
| 2375 | vpxor 0x20($inp),$t2,$t2 | |
| 2376 | vpxor 0x30($inp),$t3,$t3 | |
| 2377 | lea 0x40($inp),$inp # inp+=64 | |
| 2378 | ||
| 2379 | vmovdqu $t0,0x00($out) # write output | |
| 2380 | vmovdqu $t1,0x10($out) | |
| 2381 | vmovdqu $t2,0x20($out) | |
| 2382 | vmovdqu $t3,0x30($out) | |
| 2383 | lea 0x40($out),$out # out+=64 | |
| 2384 | ||
| 2385 | jz .Ldone_avx512 | |
| 2386 | ||
| 2387 | vextracti32x4 \$2,$a,$t0 | |
| 2388 | vextracti32x4 \$2,$b,$t1 | |
| 2389 | vextracti32x4 \$2,$c,$t2 | |
| 2390 | vextracti32x4 \$2,$d,$t3 | |
| 2391 | ||
| 2392 | sub \$64,$len | |
| 2393 | jb .Ltail_avx512 | |
| 2394 | ||
| 2395 | vpxor 0x00($inp),$t0,$t0 # xor with input | |
| 2396 | vpxor 0x10($inp),$t1,$t1 | |
| 2397 | vpxor 0x20($inp),$t2,$t2 | |
| 2398 | vpxor 0x30($inp),$t3,$t3 | |
| 2399 | lea 0x40($inp),$inp # inp+=64 | |
| 2400 | ||
| 2401 | vmovdqu $t0,0x00($out) # write output | |
| 2402 | vmovdqu $t1,0x10($out) | |
| 2403 | vmovdqu $t2,0x20($out) | |
| 2404 | vmovdqu $t3,0x30($out) | |
| 2405 | lea 0x40($out),$out # out+=64 | |
| 2406 | ||
| 2407 | jz .Ldone_avx512 | |
| 2408 | ||
| 2409 | vextracti32x4 \$3,$a,$t0 | |
| 2410 | vextracti32x4 \$3,$b,$t1 | |
| 2411 | vextracti32x4 \$3,$c,$t2 | |
| 2412 | vextracti32x4 \$3,$d,$t3 | |
| 2413 | ||
| 2414 | sub \$64,$len | |
| 2415 | jb .Ltail_avx512 | |
| 2416 | ||
| 2417 | vpxor 0x00($inp),$t0,$t0 # xor with input | |
| 2418 | vpxor 0x10($inp),$t1,$t1 | |
| 2419 | vpxor 0x20($inp),$t2,$t2 | |
| 2420 | vpxor 0x30($inp),$t3,$t3 | |
| 2421 | lea 0x40($inp),$inp # inp+=64 | |
| 2422 | ||
| 2423 | vmovdqu $t0,0x00($out) # write output | |
| 2424 | vmovdqu $t1,0x10($out) | |
| 2425 | vmovdqu $t2,0x20($out) | |
| 2426 | vmovdqu $t3,0x30($out) | |
| 2427 | lea 0x40($out),$out # out+=64 | |
| 2428 | ||
| 2429 | jnz .Loop_outer_avx512 | |
| 2430 | ||
| 2431 | jmp .Ldone_avx512 | |
| 2432 | ||
| 2433 | .align 16 | |
| 2434 | .Ltail64_avx512: | |
| 2435 | vmovdqa %x#$a,0x00(%rsp) | |
| 2436 | vmovdqa %x#$b,0x10(%rsp) | |
| 2437 | vmovdqa %x#$c,0x20(%rsp) | |
| 2438 | vmovdqa %x#$d,0x30(%rsp) | |
| 2439 | add \$64,$len | |
| 2440 | jmp .Loop_tail_avx512 | |
| 2441 | ||
| 2442 | .align 16 | |
| 2443 | .Ltail_avx512: | |
| 2444 | vmovdqa $t0,0x00(%rsp) | |
| 2445 | vmovdqa $t1,0x10(%rsp) | |
| 2446 | vmovdqa $t2,0x20(%rsp) | |
| 2447 | vmovdqa $t3,0x30(%rsp) | |
| 2448 | add \$64,$len | |
| 2449 | ||
| 2450 | .Loop_tail_avx512: | |
| 2451 | movzb ($inp,$counter),%eax | |
| 2452 | movzb (%rsp,$counter),%ecx | |
| 2453 | lea 1($counter),$counter | |
| 2454 | xor %ecx,%eax | |
| 2455 | mov %al,-1($out,$counter) | |
| 2456 | dec $len | |
| 2457 | jnz .Loop_tail_avx512 | |
| 2458 | ||
| 2459 | vmovdqa32 $a_,0x00(%rsp) | |
| 2460 | ||
| 2461 | .Ldone_avx512: | |
| 2462 | vzeroall | |
| 2463 | ___ | |
| 2464 | $code.=<<___ if ($win64); | |
| 2465 | movaps 64+32(%rsp),%xmm6 | |
| 2466 | movaps 64+48(%rsp),%xmm7 | |
| 2467 | ___ | |
| 2468 | $code.=<<___; | |
| 2469 | add \$64+$xframe+48,%rsp | |
| 2470 | ret | |
| 2471 | .size ChaCha20_avx512,.-ChaCha20_avx512 | |
| 2472 | ___ | |
| 2473 | } | |
| 2474 | if ($avx>2) { | |
| 2475 | # This one handles longer inputs... | |
| 2476 | ||
| abb8c44f AP |
2477 | my ($xa0,$xa1,$xa2,$xa3, $xb0,$xb1,$xb2,$xb3, |
| 2478 | $xc0,$xc1,$xc2,$xc3, $xd0,$xd1,$xd2,$xd3)=map("%zmm$_",(0..15)); | |
| 2479 | my @xx=($xa0,$xa1,$xa2,$xa3, $xb0,$xb1,$xb2,$xb3, | |
| 2480 | $xc0,$xc1,$xc2,$xc3, $xd0,$xd1,$xd2,$xd3); | |
| 2481 | my @key=map("%zmm$_",(16..31)); | |
| 2482 | my ($xt0,$xt1,$xt2,$xt3)=@key[0..3]; | |
| 2483 | ||
| 2484 | sub AVX512_lane_ROUND { | |
| 2485 | my ($a0,$b0,$c0,$d0)=@_; | |
| 2486 | my ($a1,$b1,$c1,$d1)=map(($_&~3)+(($_+1)&3),($a0,$b0,$c0,$d0)); | |
| 2487 | my ($a2,$b2,$c2,$d2)=map(($_&~3)+(($_+1)&3),($a1,$b1,$c1,$d1)); | |
| 2488 | my ($a3,$b3,$c3,$d3)=map(($_&~3)+(($_+1)&3),($a2,$b2,$c2,$d2)); | |
| 2489 | my @x=map("\"$_\"",@xx); | |
| 2490 | ||
| 2491 | ( | |
| 2492 | "&vpaddd (@x[$a0],@x[$a0],@x[$b0])", # Q1 | |
| 2493 | "&vpaddd (@x[$a1],@x[$a1],@x[$b1])", # Q2 | |
| 2494 | "&vpaddd (@x[$a2],@x[$a2],@x[$b2])", # Q3 | |
| 2495 | "&vpaddd (@x[$a3],@x[$a3],@x[$b3])", # Q4 | |
| 2496 | "&vpxord (@x[$d0],@x[$d0],@x[$a0])", | |
| 2497 | "&vpxord (@x[$d1],@x[$d1],@x[$a1])", | |
| 2498 | "&vpxord (@x[$d2],@x[$d2],@x[$a2])", | |
| 2499 | "&vpxord (@x[$d3],@x[$d3],@x[$a3])", | |
| 2500 | "&vprold (@x[$d0],@x[$d0],16)", | |
| 2501 | "&vprold (@x[$d1],@x[$d1],16)", | |
| 2502 | "&vprold (@x[$d2],@x[$d2],16)", | |
| 2503 | "&vprold (@x[$d3],@x[$d3],16)", | |
| 2504 | ||
| 2505 | "&vpaddd (@x[$c0],@x[$c0],@x[$d0])", | |
| 2506 | "&vpaddd (@x[$c1],@x[$c1],@x[$d1])", | |
| 2507 | "&vpaddd (@x[$c2],@x[$c2],@x[$d2])", | |
| 2508 | "&vpaddd (@x[$c3],@x[$c3],@x[$d3])", | |
| 2509 | "&vpxord (@x[$b0],@x[$b0],@x[$c0])", | |
| 2510 | "&vpxord (@x[$b1],@x[$b1],@x[$c1])", | |
| 2511 | "&vpxord (@x[$b2],@x[$b2],@x[$c2])", | |
| 2512 | "&vpxord (@x[$b3],@x[$b3],@x[$c3])", | |
| 2513 | "&vprold (@x[$b0],@x[$b0],12)", | |
| 2514 | "&vprold (@x[$b1],@x[$b1],12)", | |
| 2515 | "&vprold (@x[$b2],@x[$b2],12)", | |
| 2516 | "&vprold (@x[$b3],@x[$b3],12)", | |
| 2517 | ||
| 2518 | "&vpaddd (@x[$a0],@x[$a0],@x[$b0])", | |
| 2519 | "&vpaddd (@x[$a1],@x[$a1],@x[$b1])", | |
| 2520 | "&vpaddd (@x[$a2],@x[$a2],@x[$b2])", | |
| 2521 | "&vpaddd (@x[$a3],@x[$a3],@x[$b3])", | |
| 2522 | "&vpxord (@x[$d0],@x[$d0],@x[$a0])", | |
| 2523 | "&vpxord (@x[$d1],@x[$d1],@x[$a1])", | |
| 2524 | "&vpxord (@x[$d2],@x[$d2],@x[$a2])", | |
| 2525 | "&vpxord (@x[$d3],@x[$d3],@x[$a3])", | |
| 2526 | "&vprold (@x[$d0],@x[$d0],8)", | |
| 2527 | "&vprold (@x[$d1],@x[$d1],8)", | |
| 2528 | "&vprold (@x[$d2],@x[$d2],8)", | |
| 2529 | "&vprold (@x[$d3],@x[$d3],8)", | |
| 2530 | ||
| 2531 | "&vpaddd (@x[$c0],@x[$c0],@x[$d0])", | |
| 2532 | "&vpaddd (@x[$c1],@x[$c1],@x[$d1])", | |
| 2533 | "&vpaddd (@x[$c2],@x[$c2],@x[$d2])", | |
| 2534 | "&vpaddd (@x[$c3],@x[$c3],@x[$d3])", | |
| 2535 | "&vpxord (@x[$b0],@x[$b0],@x[$c0])", | |
| 2536 | "&vpxord (@x[$b1],@x[$b1],@x[$c1])", | |
| 2537 | "&vpxord (@x[$b2],@x[$b2],@x[$c2])", | |
| 2538 | "&vpxord (@x[$b3],@x[$b3],@x[$c3])", | |
| 2539 | "&vprold (@x[$b0],@x[$b0],7)", | |
| 2540 | "&vprold (@x[$b1],@x[$b1],7)", | |
| 2541 | "&vprold (@x[$b2],@x[$b2],7)", | |
| 2542 | "&vprold (@x[$b3],@x[$b3],7)" | |
| 2543 | ); | |
| 2544 | } | |
| 2545 | ||
| 2546 | my $xframe = $win64 ? 0xb0 : 8; | |
| 2547 | ||
| 2548 | $code.=<<___; | |
| 2549 | .type ChaCha20_16x,\@function,5 | |
| 2550 | .align 32 | |
| 2551 | ChaCha20_16x: | |
| 2552 | .LChaCha20_16x: | |
| 2553 | mov %rsp,%r11 | |
| 2554 | sub \$64+$xframe,%rsp | |
| 2555 | and \$-64,%rsp | |
| 2556 | ___ | |
| 2557 | $code.=<<___ if ($win64); | |
| 2558 | lea 0x290+0x30(%rsp),%r11 | |
| 2559 | movaps %xmm6,-0x30(%r11) | |
| 2560 | movaps %xmm7,-0x20(%r11) | |
| 2561 | movaps %xmm8,-0x10(%r11) | |
| 2562 | movaps %xmm9,0x00(%r11) | |
| 2563 | movaps %xmm10,0x10(%r11) | |
| 2564 | movaps %xmm11,0x20(%r11) | |
| 2565 | movaps %xmm12,0x30(%r11) | |
| 2566 | movaps %xmm13,0x40(%r11) | |
| 2567 | movaps %xmm14,0x50(%r11) | |
| 2568 | movaps %xmm15,0x60(%r11) | |
| 2569 | ___ | |
| 2570 | $code.=<<___; | |
| 2571 | vzeroupper | |
| 2572 | ||
| 2573 | lea .Lsigma(%rip),%r10 | |
| 2574 | vbroadcasti32x4 (%r10),$xa3 # key[0] | |
| 2575 | vbroadcasti32x4 ($key),$xb3 # key[1] | |
| 2576 | vbroadcasti32x4 16($key),$xc3 # key[2] | |
| 2577 | vbroadcasti32x4 ($counter),$xd3 # key[3] | |
| 2578 | ||
| 2579 | vpshufd \$0x00,$xa3,$xa0 # smash key by lanes... | |
| 2580 | vpshufd \$0x55,$xa3,$xa1 | |
| 2581 | vpshufd \$0xaa,$xa3,$xa2 | |
| 2582 | vpshufd \$0xff,$xa3,$xa3 | |
| 2583 | vmovdqa64 $xa0,@key[0] | |
| 2584 | vmovdqa64 $xa1,@key[1] | |
| 2585 | vmovdqa64 $xa2,@key[2] | |
| 2586 | vmovdqa64 $xa3,@key[3] | |
| 2587 | ||
| 2588 | vpshufd \$0x00,$xb3,$xb0 | |
| 2589 | vpshufd \$0x55,$xb3,$xb1 | |
| 2590 | vpshufd \$0xaa,$xb3,$xb2 | |
| 2591 | vpshufd \$0xff,$xb3,$xb3 | |
| 2592 | vmovdqa64 $xb0,@key[4] | |
| 2593 | vmovdqa64 $xb1,@key[5] | |
| 2594 | vmovdqa64 $xb2,@key[6] | |
| 2595 | vmovdqa64 $xb3,@key[7] | |
| 2596 | ||
| 2597 | vpshufd \$0x00,$xc3,$xc0 | |
| 2598 | vpshufd \$0x55,$xc3,$xc1 | |
| 2599 | vpshufd \$0xaa,$xc3,$xc2 | |
| 2600 | vpshufd \$0xff,$xc3,$xc3 | |
| 2601 | vmovdqa64 $xc0,@key[8] | |
| 2602 | vmovdqa64 $xc1,@key[9] | |
| 2603 | vmovdqa64 $xc2,@key[10] | |
| 2604 | vmovdqa64 $xc3,@key[11] | |
| 2605 | ||
| 2606 | vpshufd \$0x00,$xd3,$xd0 | |
| 2607 | vpshufd \$0x55,$xd3,$xd1 | |
| 2608 | vpshufd \$0xaa,$xd3,$xd2 | |
| 2609 | vpshufd \$0xff,$xd3,$xd3 | |
| 2610 | vpaddd .Lincz(%rip),$xd0,$xd0 # don't save counters yet | |
| 2611 | vmovdqa64 $xd0,@key[12] | |
| 2612 | vmovdqa64 $xd1,@key[13] | |
| 2613 | vmovdqa64 $xd2,@key[14] | |
| 2614 | vmovdqa64 $xd3,@key[15] | |
| 2615 | ||
| 2616 | mov \$10,%eax | |
| 2617 | jmp .Loop16x | |
| 2618 | ||
| 2619 | .align 32 | |
| 2620 | .Loop_outer16x: | |
| 2621 | vpbroadcastd 0(%r10),$xa0 # reload key | |
| 2622 | vpbroadcastd 4(%r10),$xa1 | |
| 2623 | vpbroadcastd 8(%r10),$xa2 | |
| 2624 | vpbroadcastd 12(%r10),$xa3 | |
| 2625 | vpaddd .Lsixteen(%rip),@key[12],@key[12] # next SIMD counters | |
| 2626 | vmovdqa64 @key[4],$xb0 | |
| 2627 | vmovdqa64 @key[5],$xb1 | |
| 2628 | vmovdqa64 @key[6],$xb2 | |
| 2629 | vmovdqa64 @key[7],$xb3 | |
| 2630 | vmovdqa64 @key[8],$xc0 | |
| 2631 | vmovdqa64 @key[9],$xc1 | |
| 2632 | vmovdqa64 @key[10],$xc2 | |
| 2633 | vmovdqa64 @key[11],$xc3 | |
| 2634 | vmovdqa64 @key[12],$xd0 | |
| 2635 | vmovdqa64 @key[13],$xd1 | |
| 2636 | vmovdqa64 @key[14],$xd2 | |
| 2637 | vmovdqa64 @key[15],$xd3 | |
| 2638 | ||
| 2639 | vmovdqa64 $xa0,@key[0] | |
| 2640 | vmovdqa64 $xa1,@key[1] | |
| 2641 | vmovdqa64 $xa2,@key[2] | |
| 2642 | vmovdqa64 $xa3,@key[3] | |
| 2643 | ||
| 2644 | mov \$10,%eax | |
| 2645 | jmp .Loop16x | |
| 2646 | ||
| 2647 | .align 32 | |
| 2648 | .Loop16x: | |
| 2649 | ___ | |
| 2650 | foreach (&AVX512_lane_ROUND(0, 4, 8,12)) { eval; } | |
| 2651 | foreach (&AVX512_lane_ROUND(0, 5,10,15)) { eval; } | |
| 2652 | $code.=<<___; | |
| 2653 | dec %eax | |
| 2654 | jnz .Loop16x | |
| 2655 | ||
| 2656 | vpaddd @key[0],$xa0,$xa0 # accumulate key | |
| 2657 | vpaddd @key[1],$xa1,$xa1 | |
| 2658 | vpaddd @key[2],$xa2,$xa2 | |
| 2659 | vpaddd @key[3],$xa3,$xa3 | |
| 2660 | ||
| 2661 | vpunpckldq $xa1,$xa0,$xt2 # "de-interlace" data | |
| 2662 | vpunpckldq $xa3,$xa2,$xt3 | |
| 2663 | vpunpckhdq $xa1,$xa0,$xa0 | |
| 2664 | vpunpckhdq $xa3,$xa2,$xa2 | |
| 2665 | vpunpcklqdq $xt3,$xt2,$xa1 # "a0" | |
| 2666 | vpunpckhqdq $xt3,$xt2,$xt2 # "a1" | |
| 2667 | vpunpcklqdq $xa2,$xa0,$xa3 # "a2" | |
| 2668 | vpunpckhqdq $xa2,$xa0,$xa0 # "a3" | |
| 2669 | ___ | |
| 2670 | ($xa0,$xa1,$xa2,$xa3,$xt2)=($xa1,$xt2,$xa3,$xa0,$xa2); | |
| 2671 | $code.=<<___; | |
| 2672 | vpaddd @key[4],$xb0,$xb0 | |
| 2673 | vpaddd @key[5],$xb1,$xb1 | |
| 2674 | vpaddd @key[6],$xb2,$xb2 | |
| 2675 | vpaddd @key[7],$xb3,$xb3 | |
| 2676 | ||
| 2677 | vpunpckldq $xb1,$xb0,$xt2 | |
| 2678 | vpunpckldq $xb3,$xb2,$xt3 | |
| 2679 | vpunpckhdq $xb1,$xb0,$xb0 | |
| 2680 | vpunpckhdq $xb3,$xb2,$xb2 | |
| 2681 | vpunpcklqdq $xt3,$xt2,$xb1 # "b0" | |
| 2682 | vpunpckhqdq $xt3,$xt2,$xt2 # "b1" | |
| 2683 | vpunpcklqdq $xb2,$xb0,$xb3 # "b2" | |
| 2684 | vpunpckhqdq $xb2,$xb0,$xb0 # "b3" | |
| 2685 | ___ | |
| 2686 | ($xb0,$xb1,$xb2,$xb3,$xt2)=($xb1,$xt2,$xb3,$xb0,$xb2); | |
| 2687 | $code.=<<___; | |
| 2688 | vshufi32x4 \$0x44,$xb0,$xa0,$xt3 # "de-interlace" further | |
| 2689 | vshufi32x4 \$0xee,$xb0,$xa0,$xb0 | |
| 2690 | vshufi32x4 \$0x44,$xb1,$xa1,$xa0 | |
| 2691 | vshufi32x4 \$0xee,$xb1,$xa1,$xb1 | |
| 2692 | vshufi32x4 \$0x44,$xb2,$xa2,$xa1 | |
| 2693 | vshufi32x4 \$0xee,$xb2,$xa2,$xb2 | |
| 2694 | vshufi32x4 \$0x44,$xb3,$xa3,$xa2 | |
| 2695 | vshufi32x4 \$0xee,$xb3,$xa3,$xb3 | |
| 2696 | ___ | |
| 2697 | ($xa0,$xa1,$xa2,$xa3,$xt3)=($xt3,$xa0,$xa1,$xa2,$xa3); | |
| 2698 | $code.=<<___; | |
| 2699 | vpaddd @key[8],$xc0,$xc0 | |
| 2700 | vpaddd @key[9],$xc1,$xc1 | |
| 2701 | vpaddd @key[10],$xc2,$xc2 | |
| 2702 | vpaddd @key[11],$xc3,$xc3 | |
| 2703 | ||
| 2704 | vpunpckldq $xc1,$xc0,$xt2 | |
| 2705 | vpunpckldq $xc3,$xc2,$xt3 | |
| 2706 | vpunpckhdq $xc1,$xc0,$xc0 | |
| 2707 | vpunpckhdq $xc3,$xc2,$xc2 | |
| 2708 | vpunpcklqdq $xt3,$xt2,$xc1 # "c0" | |
| 2709 | vpunpckhqdq $xt3,$xt2,$xt2 # "c1" | |
| 2710 | vpunpcklqdq $xc2,$xc0,$xc3 # "c2" | |
| 2711 | vpunpckhqdq $xc2,$xc0,$xc0 # "c3" | |
| 2712 | ___ | |
| 2713 | ($xc0,$xc1,$xc2,$xc3,$xt2)=($xc1,$xt2,$xc3,$xc0,$xc2); | |
| 2714 | $code.=<<___; | |
| 2715 | vpaddd @key[12],$xd0,$xd0 | |
| 2716 | vpaddd @key[13],$xd1,$xd1 | |
| 2717 | vpaddd @key[14],$xd2,$xd2 | |
| 2718 | vpaddd @key[15],$xd3,$xd3 | |
| 2719 | ||
| 2720 | vpunpckldq $xd1,$xd0,$xt2 | |
| 2721 | vpunpckldq $xd3,$xd2,$xt3 | |
| 2722 | vpunpckhdq $xd1,$xd0,$xd0 | |
| 2723 | vpunpckhdq $xd3,$xd2,$xd2 | |
| 2724 | vpunpcklqdq $xt3,$xt2,$xd1 # "d0" | |
| 2725 | vpunpckhqdq $xt3,$xt2,$xt2 # "d1" | |
| 2726 | vpunpcklqdq $xd2,$xd0,$xd3 # "d2" | |
| 2727 | vpunpckhqdq $xd2,$xd0,$xd0 # "d3" | |
| 2728 | ___ | |
| 2729 | ($xd0,$xd1,$xd2,$xd3,$xt2)=($xd1,$xt2,$xd3,$xd0,$xd2); | |
| 2730 | $code.=<<___; | |
| 2731 | vshufi32x4 \$0x44,$xd0,$xc0,$xt3 # "de-interlace" further | |
| 2732 | vshufi32x4 \$0xee,$xd0,$xc0,$xd0 | |
| 2733 | vshufi32x4 \$0x44,$xd1,$xc1,$xc0 | |
| 2734 | vshufi32x4 \$0xee,$xd1,$xc1,$xd1 | |
| 2735 | vshufi32x4 \$0x44,$xd2,$xc2,$xc1 | |
| 2736 | vshufi32x4 \$0xee,$xd2,$xc2,$xd2 | |
| 2737 | vshufi32x4 \$0x44,$xd3,$xc3,$xc2 | |
| 2738 | vshufi32x4 \$0xee,$xd3,$xc3,$xd3 | |
| 2739 | ___ | |
| 2740 | ($xc0,$xc1,$xc2,$xc3,$xt3)=($xt3,$xc0,$xc1,$xc2,$xc3); | |
| 2741 | $code.=<<___; | |
| 2742 | vshufi32x4 \$0x88,$xc0,$xa0,$xt0 # "de-interlace" further | |
| 2743 | vshufi32x4 \$0xdd,$xc0,$xa0,$xa0 | |
| 2744 | vshufi32x4 \$0x88,$xd0,$xb0,$xc0 | |
| 2745 | vshufi32x4 \$0xdd,$xd0,$xb0,$xd0 | |
| 2746 | vshufi32x4 \$0x88,$xc1,$xa1,$xt1 | |
| 2747 | vshufi32x4 \$0xdd,$xc1,$xa1,$xa1 | |
| 2748 | vshufi32x4 \$0x88,$xd1,$xb1,$xc1 | |
| 2749 | vshufi32x4 \$0xdd,$xd1,$xb1,$xd1 | |
| 2750 | vshufi32x4 \$0x88,$xc2,$xa2,$xt2 | |
| 2751 | vshufi32x4 \$0xdd,$xc2,$xa2,$xa2 | |
| 2752 | vshufi32x4 \$0x88,$xd2,$xb2,$xc2 | |
| 2753 | vshufi32x4 \$0xdd,$xd2,$xb2,$xd2 | |
| 2754 | vshufi32x4 \$0x88,$xc3,$xa3,$xt3 | |
| 2755 | vshufi32x4 \$0xdd,$xc3,$xa3,$xa3 | |
| 2756 | vshufi32x4 \$0x88,$xd3,$xb3,$xc3 | |
| 2757 | vshufi32x4 \$0xdd,$xd3,$xb3,$xd3 | |
| 2758 | ___ | |
| 2759 | ($xa0,$xa1,$xa2,$xa3,$xb0,$xb1,$xb2,$xb3)= | |
| 2760 | ($xt0,$xt1,$xt2,$xt3,$xa0,$xa1,$xa2,$xa3); | |
| 2761 | ||
| 2762 | ($xa0,$xb0,$xc0,$xd0, $xa1,$xb1,$xc1,$xd1, | |
| 2763 | $xa2,$xb2,$xc2,$xd2, $xa3,$xb3,$xc3,$xd3) = | |
| 2764 | ($xa0,$xa1,$xa2,$xa3, $xb0,$xb1,$xb2,$xb3, | |
| 2765 | $xc0,$xc1,$xc2,$xc3, $xd0,$xd1,$xd2,$xd3); | |
| 2766 | $code.=<<___; | |
| 2767 | cmp \$64*16,$len | |
| 2768 | jb .Ltail16x | |
| 2769 | ||
| 2770 | vpxord 0x00($inp),$xa0,$xa0 # xor with input | |
| 2771 | vpxord 0x40($inp),$xb0,$xb0 | |
| 2772 | vpxord 0x80($inp),$xc0,$xc0 | |
| 2773 | vpxord 0xc0($inp),$xd0,$xd0 | |
| 2774 | vmovdqu32 $xa0,0x00($out) | |
| 2775 | vmovdqu32 $xb0,0x40($out) | |
| 2776 | vmovdqu32 $xc0,0x80($out) | |
| 2777 | vmovdqu32 $xd0,0xc0($out) | |
| 2778 | ||
| 2779 | vpxord 0x100($inp),$xa1,$xa1 | |
| 2780 | vpxord 0x140($inp),$xb1,$xb1 | |
| 2781 | vpxord 0x180($inp),$xc1,$xc1 | |
| 2782 | vpxord 0x1c0($inp),$xd1,$xd1 | |
| 2783 | vmovdqu32 $xa1,0x100($out) | |
| 2784 | vmovdqu32 $xb1,0x140($out) | |
| 2785 | vmovdqu32 $xc1,0x180($out) | |
| 2786 | vmovdqu32 $xd1,0x1c0($out) | |
| 2787 | ||
| 2788 | vpxord 0x200($inp),$xa2,$xa2 | |
| 2789 | vpxord 0x240($inp),$xb2,$xb2 | |
| 2790 | vpxord 0x280($inp),$xc2,$xc2 | |
| 2791 | vpxord 0x2c0($inp),$xd2,$xd2 | |
| 2792 | vmovdqu32 $xa2,0x200($out) | |
| 2793 | vmovdqu32 $xb2,0x240($out) | |
| 2794 | vmovdqu32 $xc2,0x280($out) | |
| 2795 | vmovdqu32 $xd2,0x2c0($out) | |
| 2796 | ||
| 2797 | vpxord 0x300($inp),$xa3,$xa3 | |
| 2798 | vpxord 0x340($inp),$xb3,$xb3 | |
| 2799 | vpxord 0x380($inp),$xc3,$xc3 | |
| 2800 | vpxord 0x3c0($inp),$xd3,$xd3 | |
| 2801 | lea 0x400($inp),$inp | |
| 2802 | vmovdqu32 $xa3,0x300($out) | |
| 2803 | vmovdqu32 $xb3,0x340($out) | |
| 2804 | vmovdqu32 $xc3,0x380($out) | |
| 2805 | vmovdqu32 $xd3,0x3c0($out) | |
| 2806 | lea 0x400($out),$out | |
| 2807 | ||
| 2808 | sub \$64*16,$len | |
| 2809 | jnz .Loop_outer16x | |
| 2810 | ||
| 2811 | jmp .Ldone16x | |
| 2812 | ||
| 2813 | .align 32 | |
| 2814 | .Ltail16x: | |
| 2815 | xor %r10,%r10 | |
| 2816 | sub $inp,$out | |
| 2817 | cmp \$64*1,$len | |
| 2818 | jb .Less_than_64_16x | |
| 2819 | vpxord ($inp),$xa0,$xa0 # xor with input | |
| 2820 | vmovdqu32 $xa0,($out,$inp) | |
| 2821 | je .Ldone16x | |
| 2822 | vmovdqa32 $xb0,$xa0 | |
| 2823 | lea 64($inp),$inp | |
| 2824 | ||
| 2825 | cmp \$64*2,$len | |
| 2826 | jb .Less_than_64_16x | |
| 2827 | vpxord ($inp),$xb0,$xb0 | |
| 2828 | vmovdqu32 $xb0,($out,$inp) | |
| 2829 | je .Ldone16x | |
| 2830 | vmovdqa32 $xc0,$xa0 | |
| 2831 | lea 64($inp),$inp | |
| 2832 | ||
| 2833 | cmp \$64*3,$len | |
| 2834 | jb .Less_than_64_16x | |
| 2835 | vpxord ($inp),$xc0,$xc0 | |
| 2836 | vmovdqu32 $xc0,($out,$inp) | |
| 2837 | je .Ldone16x | |
| 2838 | vmovdqa32 $xd0,$xa0 | |
| 2839 | lea 64($inp),$inp | |
| 2840 | ||
| 2841 | cmp \$64*4,$len | |
| 2842 | jb .Less_than_64_16x | |
| 2843 | vpxord ($inp),$xd0,$xd0 | |
| 2844 | vmovdqu32 $xd0,($out,$inp) | |
| 2845 | je .Ldone16x | |
| 2846 | vmovdqa32 $xa1,$xa0 | |
| 2847 | lea 64($inp),$inp | |
| 2848 | ||
| 2849 | cmp \$64*5,$len | |
| 2850 | jb .Less_than_64_16x | |
| 2851 | vpxord ($inp),$xa1,$xa1 | |
| 2852 | vmovdqu32 $xa1,($out,$inp) | |
| 2853 | je .Ldone16x | |
| 2854 | vmovdqa32 $xb1,$xa0 | |
| 2855 | lea 64($inp),$inp | |
| 2856 | ||
| 2857 | cmp \$64*6,$len | |
| 2858 | jb .Less_than_64_16x | |
| 2859 | vpxord ($inp),$xb1,$xb1 | |
| 2860 | vmovdqu32 $xb1,($out,$inp) | |
| 2861 | je .Ldone16x | |
| 2862 | vmovdqa32 $xc1,$xa0 | |
| 2863 | lea 64($inp),$inp | |
| 2864 | ||
| 2865 | cmp \$64*7,$len | |
| 2866 | jb .Less_than_64_16x | |
| 2867 | vpxord ($inp),$xc1,$xc1 | |
| 2868 | vmovdqu32 $xc1,($out,$inp) | |
| 2869 | je .Ldone16x | |
| 2870 | vmovdqa32 $xd1,$xa0 | |
| 2871 | lea 64($inp),$inp | |
| 2872 | ||
| 2873 | cmp \$64*8,$len | |
| 2874 | jb .Less_than_64_16x | |
| 2875 | vpxord ($inp),$xd1,$xd1 | |
| 2876 | vmovdqu32 $xd1,($out,$inp) | |
| 2877 | je .Ldone16x | |
| 2878 | vmovdqa32 $xa2,$xa0 | |
| 2879 | lea 64($inp),$inp | |
| 2880 | ||
| 2881 | cmp \$64*9,$len | |
| 2882 | jb .Less_than_64_16x | |
| 2883 | vpxord ($inp),$xa2,$xa2 | |
| 2884 | vmovdqu32 $xa2,($out,$inp) | |
| 2885 | je .Ldone16x | |
| 2886 | vmovdqa32 $xb2,$xa0 | |
| 2887 | lea 64($inp),$inp | |
| 2888 | ||
| 2889 | cmp \$64*10,$len | |
| 2890 | jb .Less_than_64_16x | |
| 2891 | vpxord ($inp),$xb2,$xb2 | |
| 2892 | vmovdqu32 $xb2,($out,$inp) | |
| 2893 | je .Ldone16x | |
| 2894 | vmovdqa32 $xc2,$xa0 | |
| 2895 | lea 64($inp),$inp | |
| 2896 | ||
| 2897 | cmp \$64*11,$len | |
| 2898 | jb .Less_than_64_16x | |
| 2899 | vpxord ($inp),$xc2,$xc2 | |
| 2900 | vmovdqu32 $xc2,($out,$inp) | |
| 2901 | je .Ldone16x | |
| 2902 | vmovdqa32 $xd2,$xa0 | |
| 2903 | lea 64($inp),$inp | |
| 2904 | ||
| 2905 | cmp \$64*12,$len | |
| 2906 | jb .Less_than_64_16x | |
| 2907 | vpxord ($inp),$xd2,$xd2 | |
| 2908 | vmovdqu32 $xd2,($out,$inp) | |
| 2909 | je .Ldone16x | |
| 2910 | vmovdqa32 $xa3,$xa0 | |
| 2911 | lea 64($inp),$inp | |
| 2912 | ||
| 2913 | cmp \$64*13,$len | |
| 2914 | jb .Less_than_64_16x | |
| 2915 | vpxord ($inp),$xa3,$xa3 | |
| 2916 | vmovdqu32 $xa3,($out,$inp) | |
| 2917 | je .Ldone16x | |
| 2918 | vmovdqa32 $xb3,$xa0 | |
| 2919 | lea 64($inp),$inp | |
| 2920 | ||
| 2921 | cmp \$64*14,$len | |
| 2922 | jb .Less_than_64_16x | |
| 2923 | vpxord ($inp),$xb3,$xb3 | |
| 2924 | vmovdqu32 $xb3,($out,$inp) | |
| 2925 | je .Ldone16x | |
| 2926 | vmovdqa32 $xc3,$xa0 | |
| 2927 | lea 64($inp),$inp | |
| 2928 | ||
| 2929 | cmp \$64*15,$len | |
| 2930 | jb .Less_than_64_16x | |
| 2931 | vpxord ($inp),$xc3,$xc3 | |
| 2932 | vmovdqu32 $xc3,($out,$inp) | |
| 2933 | je .Ldone16x | |
| 2934 | vmovdqa32 $xd3,$xa0 | |
| 2935 | lea 64($inp),$inp | |
| 2936 | ||
| 2937 | .Less_than_64_16x: | |
| 2938 | vmovdqa32 $xa0,0x00(%rsp) | |
| 2939 | lea ($out,$inp),$out | |
| 2940 | and \$63,$len | |
| 2941 | ||
| 2942 | .Loop_tail16x: | |
| 2943 | movzb ($inp,%r10),%eax | |
| 2944 | movzb (%rsp,%r10),%ecx | |
| 2945 | lea 1(%r10),%r10 | |
| 2946 | xor %ecx,%eax | |
| 2947 | mov %al,-1($out,%r10) | |
| 2948 | dec $len | |
| 2949 | jnz .Loop_tail16x | |
| 2950 | ||
| 3c274a6e AP |
2951 | vpxord $xa0,$xa0,$xa0 |
| 2952 | vmovdqa32 $xa0,0(%rsp) | |
| 2953 | ||
| abb8c44f | 2954 | .Ldone16x: |
| 3c274a6e | 2955 | vzeroall |
| abb8c44f AP |
2956 | ___ |
| 2957 | $code.=<<___ if ($win64); | |
| 2958 | lea 0x290+0x30(%rsp),%r11 | |
| 2959 | movaps -0x30(%r11),%xmm6 | |
| 2960 | movaps -0x20(%r11),%xmm7 | |
| 2961 | movaps -0x10(%r11),%xmm8 | |
| 2962 | movaps 0x00(%r11),%xmm9 | |
| 2963 | movaps 0x10(%r11),%xmm10 | |
| 2964 | movaps 0x20(%r11),%xmm11 | |
| 2965 | movaps 0x30(%r11),%xmm12 | |
| 2966 | movaps 0x40(%r11),%xmm13 | |
| 2967 | movaps 0x50(%r11),%xmm14 | |
| 2968 | movaps 0x60(%r11),%xmm15 | |
| 2969 | ___ | |
| 2970 | $code.=<<___; | |
| 2971 | mov %r11,%rsp | |
| 2972 | ret | |
| 2973 | .size ChaCha20_16x,.-ChaCha20_16x | |
| 2974 | ___ | |
| 2975 | } | |
| 2976 | ||
| a98c648e | 2977 | foreach (split("\n",$code)) { |
| 3c274a6e | 2978 | s/\`([^\`]*)\`/eval $1/ge; |
| a98c648e | 2979 | |
| 3c274a6e | 2980 | s/%x#%[yz]/%x/g; # "down-shift" |
| a98c648e AP |
2981 | |
| 2982 | print $_,"\n"; | |
| 2983 | } | |
| 2984 | ||
| 2985 | close STDOUT; |