projects / thirdparty / openssl.git / blame
| Commit | Line | Data |
|---|---|---|
| 6aa36e8e | 1 | #! /usr/bin/env perl |
| 83cf7abf | 2 | # Copyright 2012-2018 The OpenSSL Project Authors. All Rights Reserved. |
| 6aa36e8e | 3 | # |
| 367ace68 | 4 | # Licensed under the Apache License 2.0 (the "License"). You may not use |
| 6aa36e8e RS |
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 | ||
| 68c06bf6 AP |
9 | |
| 10 | # ==================================================================== | |
| e3713c36 RS |
11 | # Written by David S. Miller and Andy Polyakov |
| 12 | # The module is licensed under 2-clause BSD license. | |
| 13 | # November 2012. All rights reserved. | |
| 68c06bf6 AP |
14 | # ==================================================================== |
| 15 | ||
| 16 | ###################################################################### | |
| 17 | # Montgomery squaring-n-multiplication module for SPARC T4. | |
| 18 | # | |
| 19 | # The module consists of three parts: | |
| 20 | # | |
| 21 | # 1) collection of "single-op" subroutines that perform single | |
| 22 | # operation, Montgomery squaring or multiplication, on 512-, | |
| 23 | # 1024-, 1536- and 2048-bit operands; | |
| 24 | # 2) collection of "multi-op" subroutines that perform 5 squaring and | |
| 25 | # 1 multiplication operations on operands of above lengths; | |
| 26 | # 3) fall-back and helper VIS3 subroutines. | |
| 27 | # | |
| 28 | # RSA sign is dominated by multi-op subroutine, while RSA verify and | |
| 29 | # DSA - by single-op. Special note about 4096-bit RSA verify result. | |
| 30 | # Operands are too long for dedicated hardware and it's handled by | |
| 31 | # VIS3 code, which is why you don't see any improvement. It's surely | |
| 32 | # possible to improve it [by deploying 'mpmul' instruction], maybe in | |
| 33 | # the future... | |
| 34 | # | |
| 35 | # Performance improvement. | |
| 36 | # | |
| 37 | # 64-bit process, VIS3: | |
| 38 | # sign verify sign/s verify/s | |
| 4ddacd99 AP |
39 | # rsa 1024 bits 0.000628s 0.000028s 1592.4 35434.4 |
| 40 | # rsa 2048 bits 0.003282s 0.000106s 304.7 9438.3 | |
| 41 | # rsa 4096 bits 0.025866s 0.000340s 38.7 2940.9 | |
| 68c06bf6 AP |
42 | # dsa 1024 bits 0.000301s 0.000332s 3323.7 3013.9 |
| 43 | # dsa 2048 bits 0.001056s 0.001233s 946.9 810.8 | |
| 44 | # | |
| 45 | # 64-bit process, this module: | |
| 46 | # sign verify sign/s verify/s | |
| 4ddacd99 AP |
47 | # rsa 1024 bits 0.000256s 0.000016s 3904.4 61411.9 |
| 48 | # rsa 2048 bits 0.000946s 0.000029s 1056.8 34292.7 | |
| 49 | # rsa 4096 bits 0.005061s 0.000340s 197.6 2940.5 | |
| 50 | # dsa 1024 bits 0.000176s 0.000195s 5674.7 5130.5 | |
| 51 | # dsa 2048 bits 0.000296s 0.000354s 3383.2 2827.6 | |
| 68c06bf6 AP |
52 | # |
| 53 | ###################################################################### | |
| 54 | # 32-bit process, VIS3: | |
| 55 | # sign verify sign/s verify/s | |
| 4ddacd99 AP |
56 | # rsa 1024 bits 0.000665s 0.000028s 1504.8 35233.3 |
| 57 | # rsa 2048 bits 0.003349s 0.000106s 298.6 9433.4 | |
| 58 | # rsa 4096 bits 0.025959s 0.000341s 38.5 2934.8 | |
| 59 | # dsa 1024 bits 0.000320s 0.000341s 3123.3 2929.6 | |
| 60 | # dsa 2048 bits 0.001101s 0.001260s 908.2 793.4 | |
| 68c06bf6 AP |
61 | # |
| 62 | # 32-bit process, this module: | |
| 63 | # sign verify sign/s verify/s | |
| 4ddacd99 AP |
64 | # rsa 1024 bits 0.000301s 0.000017s 3317.1 60240.0 |
| 65 | # rsa 2048 bits 0.001034s 0.000030s 966.9 33812.7 | |
| 66 | # rsa 4096 bits 0.005244s 0.000341s 190.7 2935.4 | |
| 67 | # dsa 1024 bits 0.000201s 0.000205s 4976.1 4879.2 | |
| 68 | # dsa 2048 bits 0.000328s 0.000360s 3051.1 2774.2 | |
| 68c06bf6 AP |
69 | # |
| 70 | # 32-bit code is prone to performance degradation as interrupt rate | |
| 71 | # dispatched to CPU executing the code grows. This is because in | |
| 72 | # standard process of handling interrupt in 32-bit process context | |
| 73 | # upper halves of most integer registers used as input or output are | |
| 74 | # zeroed. This renders result invalid, and operation has to be re-run. | |
| 75 | # If CPU is "bothered" with timer interrupts only, the penalty is | |
| 76 | # hardly measurable. But in order to mitigate this problem for higher | |
| 77 | # interrupt rates contemporary Linux kernel recognizes biased stack | |
| 78 | # even in 32-bit process context and preserves full register contents. | |
| 4ddacd99 | 79 | # See http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=517ffce4e1a03aea979fe3a18a3dd1761a24fafb |
| 68c06bf6 AP |
80 | # for details. |
| 81 | ||
| 82 | $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1; | |
| 83 | push(@INC,"${dir}","${dir}../../perlasm"); | |
| 84 | require "sparcv9_modes.pl"; | |
| 85 | ||
| 1aa89a7a | 86 | $output = pop and open STDOUT,">$output"; |
| 6bd7a4d9 | 87 | |
| 68c06bf6 AP |
88 | $code.=<<___; |
| 89 | #include "sparc_arch.h" | |
| 90 | ||
| 91 | #ifdef __arch64__ | |
| 92 | .register %g2,#scratch | |
| 93 | .register %g3,#scratch | |
| 94 | #endif | |
| 95 | ||
| 96 | .section ".text",#alloc,#execinstr | |
| 97 | ||
| 98 | #ifdef __PIC__ | |
| 99 | SPARC_PIC_THUNK(%g1) | |
| 100 | #endif | |
| 101 | ___ | |
| 102 | ||
| 103 | ######################################################################## | |
| 104 | # Register layout for mont[mul|sqr] instructions. | |
| 105 | # For details see "Oracle SPARC Architecture 2011" manual at | |
| 106 | # http://www.oracle.com/technetwork/server-storage/sun-sparc-enterprise/documentation/. | |
| 107 | # | |
| 108 | my @R=map("%f".2*$_,(0..11,30,31,12..29)); | |
| 109 | my @N=(map("%l$_",(0..7)),map("%o$_",(0..5))); @N=(@N,@N,@N[0..3]); | |
| 68c06bf6 | 110 | my @A=(@N[0..13],@R[14..31]); |
| 4ddacd99 | 111 | my @B=(map("%i$_",(0..5)),map("%l$_",(0..7))); @B=(@B,@B,map("%o$_",(0..3))); |
| 68c06bf6 AP |
112 | \f |
| 113 | ######################################################################## | |
| 114 | # int bn_mul_mont_t4_$NUM(u64 *rp,const u64 *ap,const u64 *bp, | |
| 115 | # const u64 *np,const BN_ULONG *n0); | |
| 116 | # | |
| 117 | sub generate_bn_mul_mont_t4() { | |
| 118 | my $NUM=shift; | |
| 119 | my ($rp,$ap,$bp,$np,$sentinel)=map("%g$_",(1..5)); | |
| 120 | ||
| 121 | $code.=<<___; | |
| 122 | .globl bn_mul_mont_t4_$NUM | |
| 123 | .align 32 | |
| 124 | bn_mul_mont_t4_$NUM: | |
| 125 | #ifdef __arch64__ | |
| 126 | mov 0,$sentinel | |
| 127 | mov -128,%g4 | |
| 128 | #elif defined(SPARCV9_64BIT_STACK) | |
| 129 | SPARC_LOAD_ADDRESS_LEAF(OPENSSL_sparcv9cap_P,%g1,%g5) | |
| 130 | ld [%g1+0],%g1 ! OPENSSL_sparcv9_P[0] | |
| 131 | mov -2047,%g4 | |
| 132 | and %g1,SPARCV9_64BIT_STACK,%g1 | |
| 133 | movrz %g1,0,%g4 | |
| 134 | mov -1,$sentinel | |
| 135 | add %g4,-128,%g4 | |
| 136 | #else | |
| 137 | mov -1,$sentinel | |
| 138 | mov -128,%g4 | |
| 139 | #endif | |
| 140 | sllx $sentinel,32,$sentinel | |
| 141 | save %sp,%g4,%sp | |
| 142 | #ifndef __arch64__ | |
| 143 | save %sp,-128,%sp ! warm it up | |
| 144 | save %sp,-128,%sp | |
| 145 | save %sp,-128,%sp | |
| 146 | save %sp,-128,%sp | |
| 147 | save %sp,-128,%sp | |
| 148 | save %sp,-128,%sp | |
| 149 | restore | |
| 150 | restore | |
| 151 | restore | |
| 152 | restore | |
| 153 | restore | |
| 154 | restore | |
| 155 | #endif | |
| 156 | and %sp,1,%g4 | |
| 157 | or $sentinel,%fp,%fp | |
| 158 | or %g4,$sentinel,$sentinel | |
| 159 | ||
| 160 | ! copy arguments to global registers | |
| 161 | mov %i0,$rp | |
| 162 | mov %i1,$ap | |
| 163 | mov %i2,$bp | |
| 164 | mov %i3,$np | |
| 165 | ld [%i4+0],%f1 ! load *n0 | |
| 166 | ld [%i4+4],%f0 | |
| 167 | fsrc2 %f0,%f60 | |
| 168 | ___ | |
| 169 | \f | |
| 170 | # load ap[$NUM] ######################################################## | |
| 171 | $code.=<<___; | |
| 172 | save %sp,-128,%sp; or $sentinel,%fp,%fp | |
| 173 | ___ | |
| 174 | for($i=0; $i<14 && $i<$NUM; $i++) { | |
| 175 | my $lo=$i<13?@A[$i+1]:"%o7"; | |
| 176 | $code.=<<___; | |
| 177 | ld [$ap+$i*8+0],$lo | |
| 178 | ld [$ap+$i*8+4],@A[$i] | |
| 179 | sllx @A[$i],32,@A[$i] | |
| 180 | or $lo,@A[$i],@A[$i] | |
| 181 | ___ | |
| 182 | } | |
| 183 | for(; $i<$NUM; $i++) { | |
| 184 | my ($hi,$lo)=("%f".2*($i%4),"%f".(2*($i%4)+1)); | |
| 185 | $code.=<<___; | |
| 186 | ld [$ap+$i*8+0],$lo | |
| 187 | ld [$ap+$i*8+4],$hi | |
| 188 | fsrc2 $hi,@A[$i] | |
| 189 | ___ | |
| 190 | } | |
| 191 | # load np[$NUM] ######################################################## | |
| 192 | $code.=<<___; | |
| 193 | save %sp,-128,%sp; or $sentinel,%fp,%fp | |
| 194 | ___ | |
| 195 | for($i=0; $i<14 && $i<$NUM; $i++) { | |
| 196 | my $lo=$i<13?@N[$i+1]:"%o7"; | |
| 197 | $code.=<<___; | |
| 198 | ld [$np+$i*8+0],$lo | |
| 199 | ld [$np+$i*8+4],@N[$i] | |
| 200 | sllx @N[$i],32,@N[$i] | |
| 201 | or $lo,@N[$i],@N[$i] | |
| 202 | ___ | |
| 203 | } | |
| 204 | $code.=<<___; | |
| 205 | save %sp,-128,%sp; or $sentinel,%fp,%fp | |
| 206 | ___ | |
| 207 | for(; $i<28 && $i<$NUM; $i++) { | |
| 208 | my $lo=$i<27?@N[$i+1]:"%o7"; | |
| 209 | $code.=<<___; | |
| 210 | ld [$np+$i*8+0],$lo | |
| 211 | ld [$np+$i*8+4],@N[$i] | |
| 212 | sllx @N[$i],32,@N[$i] | |
| 213 | or $lo,@N[$i],@N[$i] | |
| 214 | ___ | |
| 215 | } | |
| 216 | $code.=<<___; | |
| 217 | save %sp,-128,%sp; or $sentinel,%fp,%fp | |
| 218 | ___ | |
| 219 | for(; $i<$NUM; $i++) { | |
| 220 | my $lo=($i<$NUM-1)?@N[$i+1]:"%o7"; | |
| 221 | $code.=<<___; | |
| 222 | ld [$np+$i*8+0],$lo | |
| 223 | ld [$np+$i*8+4],@N[$i] | |
| 224 | sllx @N[$i],32,@N[$i] | |
| 225 | or $lo,@N[$i],@N[$i] | |
| 226 | ___ | |
| 227 | } | |
| 228 | $code.=<<___; | |
| 229 | cmp $ap,$bp | |
| 230 | be SIZE_T_CC,.Lmsquare_$NUM | |
| 231 | nop | |
| 232 | ___ | |
| 233 | \f | |
| 234 | # load bp[$NUM] ######################################################## | |
| 68c06bf6 AP |
235 | $code.=<<___; |
| 236 | save %sp,-128,%sp; or $sentinel,%fp,%fp | |
| 237 | ___ | |
| 4ddacd99 AP |
238 | for($i=0; $i<14 && $i<$NUM; $i++) { |
| 239 | my $lo=$i<13?@B[$i+1]:"%o7"; | |
| 68c06bf6 AP |
240 | $code.=<<___; |
| 241 | ld [$bp+$i*8+0],$lo | |
| 242 | ld [$bp+$i*8+4],@B[$i] | |
| 243 | sllx @B[$i],32,@B[$i] | |
| 244 | or $lo,@B[$i],@B[$i] | |
| 245 | ___ | |
| 246 | } | |
| 247 | $code.=<<___; | |
| 248 | save %sp,-128,%sp; or $sentinel,%fp,%fp | |
| 249 | ___ | |
| 250 | for(; $i<$NUM; $i++) { | |
| 251 | my $lo=($i<$NUM-1)?@B[$i+1]:"%o7"; | |
| 252 | $code.=<<___; | |
| 253 | ld [$bp+$i*8+0],$lo | |
| 254 | ld [$bp+$i*8+4],@B[$i] | |
| 255 | sllx @B[$i],32,@B[$i] | |
| 256 | or $lo,@B[$i],@B[$i] | |
| 257 | ___ | |
| 258 | } | |
| 259 | # magic ################################################################ | |
| 260 | $code.=<<___; | |
| 261 | .word 0x81b02920+$NUM-1 ! montmul $NUM-1 | |
| 262 | .Lmresume_$NUM: | |
| 263 | fbu,pn %fcc3,.Lmabort_$NUM | |
| 264 | #ifndef __arch64__ | |
| 265 | and %fp,$sentinel,$sentinel | |
| 266 | brz,pn $sentinel,.Lmabort_$NUM | |
| 267 | #endif | |
| 268 | nop | |
| 269 | #ifdef __arch64__ | |
| 270 | restore | |
| 271 | restore | |
| 272 | restore | |
| 273 | restore | |
| 274 | restore | |
| 275 | #else | |
| 276 | restore; and %fp,$sentinel,$sentinel | |
| 277 | restore; and %fp,$sentinel,$sentinel | |
| 278 | restore; and %fp,$sentinel,$sentinel | |
| 279 | restore; and %fp,$sentinel,$sentinel | |
| 280 | brz,pn $sentinel,.Lmabort1_$NUM | |
| 281 | restore | |
| 282 | #endif | |
| 283 | ___ | |
| 284 | \f | |
| 285 | # save tp[$NUM] ######################################################## | |
| 286 | for($i=0; $i<14 && $i<$NUM; $i++) { | |
| 287 | $code.=<<___; | |
| 288 | movxtod @A[$i],@R[$i] | |
| 289 | ___ | |
| 290 | } | |
| 291 | $code.=<<___; | |
| 292 | #ifdef __arch64__ | |
| 293 | restore | |
| 294 | #else | |
| 295 | and %fp,$sentinel,$sentinel | |
| 296 | restore | |
| 297 | and $sentinel,1,%o7 | |
| 298 | and %fp,$sentinel,$sentinel | |
| 299 | srl %fp,0,%fp ! just in case? | |
| 300 | or %o7,$sentinel,$sentinel | |
| 301 | brz,a,pn $sentinel,.Lmdone_$NUM | |
| 302 | mov 0,%i0 ! return failure | |
| 303 | #endif | |
| 304 | ___ | |
| 305 | for($i=0; $i<12 && $i<$NUM; $i++) { | |
| 306 | @R[$i] =~ /%f([0-9]+)/; | |
| 307 | my $lo = "%f".($1+1); | |
| 308 | $code.=<<___; | |
| 309 | st $lo,[$rp+$i*8+0] | |
| 310 | st @R[$i],[$rp+$i*8+4] | |
| 311 | ___ | |
| 312 | } | |
| 313 | for(; $i<$NUM; $i++) { | |
| 314 | my ($hi,$lo)=("%f".2*($i%4),"%f".(2*($i%4)+1)); | |
| 315 | $code.=<<___; | |
| 316 | fsrc2 @R[$i],$hi | |
| 317 | st $lo,[$rp+$i*8+0] | |
| 318 | st $hi,[$rp+$i*8+4] | |
| 319 | ___ | |
| 320 | } | |
| 321 | $code.=<<___; | |
| 322 | mov 1,%i0 ! return success | |
| 323 | .Lmdone_$NUM: | |
| 324 | ret | |
| 325 | restore | |
| 326 | ||
| 327 | .Lmabort_$NUM: | |
| 328 | restore | |
| 329 | restore | |
| 330 | restore | |
| 331 | restore | |
| 332 | restore | |
| 333 | .Lmabort1_$NUM: | |
| 334 | restore | |
| 335 | ||
| 336 | mov 0,%i0 ! return failure | |
| 337 | ret | |
| 338 | restore | |
| 339 | ||
| 340 | .align 32 | |
| 341 | .Lmsquare_$NUM: | |
| 342 | save %sp,-128,%sp; or $sentinel,%fp,%fp | |
| 343 | save %sp,-128,%sp; or $sentinel,%fp,%fp | |
| 344 | .word 0x81b02940+$NUM-1 ! montsqr $NUM-1 | |
| 345 | ba .Lmresume_$NUM | |
| 346 | nop | |
| 347 | .type bn_mul_mont_t4_$NUM, #function | |
| 348 | .size bn_mul_mont_t4_$NUM, .-bn_mul_mont_t4_$NUM | |
| 349 | ___ | |
| 350 | } | |
| 351 | ||
| 352 | for ($i=8;$i<=32;$i+=8) { | |
| 353 | &generate_bn_mul_mont_t4($i); | |
| 354 | } | |
| 355 | \f | |
| 356 | ######################################################################## | |
| 357 | # | |
| 4ddacd99 AP |
358 | sub load_ccr { |
| 359 | my ($ptbl,$pwr,$ccr,$skip_wr)=@_; | |
| 360 | $code.=<<___; | |
| 361 | srl $pwr, 2, %o4 | |
| 362 | and $pwr, 3, %o5 | |
| 363 | and %o4, 7, %o4 | |
| 364 | sll %o5, 3, %o5 ! offset within first cache line | |
| 365 | add %o5, $ptbl, $ptbl ! of the pwrtbl | |
| 366 | or %g0, 1, %o5 | |
| 367 | sll %o5, %o4, $ccr | |
| 368 | ___ | |
| 369 | $code.=<<___ if (!$skip_wr); | |
| 370 | wr $ccr, %g0, %ccr | |
| 371 | ___ | |
| 372 | } | |
| 373 | sub load_b_pair { | |
| 374 | my ($pwrtbl,$B0,$B1)=@_; | |
| 375 | ||
| 68c06bf6 | 376 | $code.=<<___; |
| 4ddacd99 AP |
377 | ldx [$pwrtbl+0*32], $B0 |
| 378 | ldx [$pwrtbl+8*32], $B1 | |
| 379 | ldx [$pwrtbl+1*32], %o4 | |
| 380 | ldx [$pwrtbl+9*32], %o5 | |
| 381 | movvs %icc, %o4, $B0 | |
| 382 | ldx [$pwrtbl+2*32], %o4 | |
| 383 | movvs %icc, %o5, $B1 | |
| 384 | ldx [$pwrtbl+10*32],%o5 | |
| 385 | move %icc, %o4, $B0 | |
| 386 | ldx [$pwrtbl+3*32], %o4 | |
| 387 | move %icc, %o5, $B1 | |
| 388 | ldx [$pwrtbl+11*32],%o5 | |
| 389 | movneg %icc, %o4, $B0 | |
| 390 | ldx [$pwrtbl+4*32], %o4 | |
| 391 | movneg %icc, %o5, $B1 | |
| 392 | ldx [$pwrtbl+12*32],%o5 | |
| 393 | movcs %xcc, %o4, $B0 | |
| 394 | ldx [$pwrtbl+5*32],%o4 | |
| 395 | movcs %xcc, %o5, $B1 | |
| 396 | ldx [$pwrtbl+13*32],%o5 | |
| 397 | movvs %xcc, %o4, $B0 | |
| 398 | ldx [$pwrtbl+6*32], %o4 | |
| 399 | movvs %xcc, %o5, $B1 | |
| 400 | ldx [$pwrtbl+14*32],%o5 | |
| 401 | move %xcc, %o4, $B0 | |
| 402 | ldx [$pwrtbl+7*32], %o4 | |
| 403 | move %xcc, %o5, $B1 | |
| 404 | ldx [$pwrtbl+15*32],%o5 | |
| 405 | movneg %xcc, %o4, $B0 | |
| 406 | add $pwrtbl,16*32, $pwrtbl | |
| 407 | movneg %xcc, %o5, $B1 | |
| 68c06bf6 AP |
408 | ___ |
| 409 | } | |
| 4ddacd99 AP |
410 | sub load_b { |
| 411 | my ($pwrtbl,$Bi)=@_; | |
| 412 | ||
| 68c06bf6 | 413 | $code.=<<___; |
| 4ddacd99 AP |
414 | ldx [$pwrtbl+0*32], $Bi |
| 415 | ldx [$pwrtbl+1*32], %o4 | |
| 416 | ldx [$pwrtbl+2*32], %o5 | |
| 417 | movvs %icc, %o4, $Bi | |
| 418 | ldx [$pwrtbl+3*32], %o4 | |
| 419 | move %icc, %o5, $Bi | |
| 420 | ldx [$pwrtbl+4*32], %o5 | |
| 421 | movneg %icc, %o4, $Bi | |
| 422 | ldx [$pwrtbl+5*32], %o4 | |
| 423 | movcs %xcc, %o5, $Bi | |
| 424 | ldx [$pwrtbl+6*32], %o5 | |
| 425 | movvs %xcc, %o4, $Bi | |
| 426 | ldx [$pwrtbl+7*32], %o4 | |
| 427 | move %xcc, %o5, $Bi | |
| 428 | add $pwrtbl,8*32, $pwrtbl | |
| 429 | movneg %xcc, %o4, $Bi | |
| 68c06bf6 AP |
430 | ___ |
| 431 | } | |
| 432 | \f | |
| 433 | ######################################################################## | |
| 434 | # int bn_pwr5_mont_t4_$NUM(u64 *tp,const u64 *np,const BN_ULONG *n0, | |
| 4ddacd99 | 435 | # const u64 *pwrtbl,int pwr,int stride); |
| 68c06bf6 AP |
436 | # |
| 437 | sub generate_bn_pwr5_mont_t4() { | |
| 438 | my $NUM=shift; | |
| 439 | my ($tp,$np,$pwrtbl,$pwr,$sentinel)=map("%g$_",(1..5)); | |
| 440 | ||
| 441 | $code.=<<___; | |
| 442 | .globl bn_pwr5_mont_t4_$NUM | |
| 443 | .align 32 | |
| 444 | bn_pwr5_mont_t4_$NUM: | |
| 445 | #ifdef __arch64__ | |
| 446 | mov 0,$sentinel | |
| 447 | mov -128,%g4 | |
| 448 | #elif defined(SPARCV9_64BIT_STACK) | |
| 449 | SPARC_LOAD_ADDRESS_LEAF(OPENSSL_sparcv9cap_P,%g1,%g5) | |
| 450 | ld [%g1+0],%g1 ! OPENSSL_sparcv9_P[0] | |
| 451 | mov -2047,%g4 | |
| 452 | and %g1,SPARCV9_64BIT_STACK,%g1 | |
| 453 | movrz %g1,0,%g4 | |
| 454 | mov -1,$sentinel | |
| 455 | add %g4,-128,%g4 | |
| 456 | #else | |
| 457 | mov -1,$sentinel | |
| 458 | mov -128,%g4 | |
| 459 | #endif | |
| 460 | sllx $sentinel,32,$sentinel | |
| 461 | save %sp,%g4,%sp | |
| 462 | #ifndef __arch64__ | |
| 463 | save %sp,-128,%sp ! warm it up | |
| 464 | save %sp,-128,%sp | |
| 465 | save %sp,-128,%sp | |
| 466 | save %sp,-128,%sp | |
| 467 | save %sp,-128,%sp | |
| 468 | save %sp,-128,%sp | |
| 469 | restore | |
| 470 | restore | |
| 471 | restore | |
| 472 | restore | |
| 473 | restore | |
| 474 | restore | |
| 475 | #endif | |
| 476 | and %sp,1,%g4 | |
| 477 | or $sentinel,%fp,%fp | |
| 478 | or %g4,$sentinel,$sentinel | |
| 479 | ||
| 480 | ! copy arguments to global registers | |
| 481 | mov %i0,$tp | |
| 482 | mov %i1,$np | |
| 483 | ld [%i2+0],%f1 ! load *n0 | |
| 484 | ld [%i2+4],%f0 | |
| 485 | mov %i3,$pwrtbl | |
| 4ddacd99 AP |
486 | srl %i4,%g0,%i4 ! pack last arguments |
| 487 | sllx %i5,32,$pwr | |
| 488 | or %i4,$pwr,$pwr | |
| 68c06bf6 AP |
489 | fsrc2 %f0,%f60 |
| 490 | ___ | |
| 491 | \f | |
| 492 | # load tp[$NUM] ######################################################## | |
| 493 | $code.=<<___; | |
| 494 | save %sp,-128,%sp; or $sentinel,%fp,%fp | |
| 495 | ___ | |
| 496 | for($i=0; $i<14 && $i<$NUM; $i++) { | |
| 497 | $code.=<<___; | |
| 498 | ldx [$tp+$i*8],@A[$i] | |
| 499 | ___ | |
| 500 | } | |
| 501 | for(; $i<$NUM; $i++) { | |
| 502 | $code.=<<___; | |
| 503 | ldd [$tp+$i*8],@A[$i] | |
| 504 | ___ | |
| 505 | } | |
| 506 | # load np[$NUM] ######################################################## | |
| 507 | $code.=<<___; | |
| 508 | save %sp,-128,%sp; or $sentinel,%fp,%fp | |
| 509 | ___ | |
| 510 | for($i=0; $i<14 && $i<$NUM; $i++) { | |
| 511 | $code.=<<___; | |
| 512 | ldx [$np+$i*8],@N[$i] | |
| 513 | ___ | |
| 514 | } | |
| 515 | $code.=<<___; | |
| 516 | save %sp,-128,%sp; or $sentinel,%fp,%fp | |
| 517 | ___ | |
| 518 | for(; $i<28 && $i<$NUM; $i++) { | |
| 519 | $code.=<<___; | |
| 520 | ldx [$np+$i*8],@N[$i] | |
| 521 | ___ | |
| 522 | } | |
| 523 | $code.=<<___; | |
| 524 | save %sp,-128,%sp; or $sentinel,%fp,%fp | |
| 525 | ___ | |
| 526 | for(; $i<$NUM; $i++) { | |
| 527 | $code.=<<___; | |
| 528 | ldx [$np+$i*8],@N[$i] | |
| 529 | ___ | |
| 530 | } | |
| 531 | # load pwrtbl[pwr] ######################################################## | |
| 68c06bf6 AP |
532 | $code.=<<___; |
| 533 | save %sp,-128,%sp; or $sentinel,%fp,%fp | |
| 4ddacd99 AP |
534 | |
| 535 | srlx $pwr, 32, %o4 ! unpack $pwr | |
| 536 | srl $pwr, %g0, %o5 | |
| 537 | sub %o4, 5, %o4 | |
| 538 | mov $pwrtbl, %o7 | |
| 539 | sllx %o4, 32, $pwr ! re-pack $pwr | |
| 540 | or %o5, $pwr, $pwr | |
| 541 | srl %o5, %o4, %o5 | |
| 68c06bf6 | 542 | ___ |
| 4ddacd99 | 543 | &load_ccr("%o7","%o5","%o4"); |
| 68c06bf6 | 544 | $code.=<<___; |
| 4ddacd99 AP |
545 | b .Lstride_$NUM |
| 546 | nop | |
| 547 | .align 16 | |
| 548 | .Lstride_$NUM: | |
| 68c06bf6 | 549 | ___ |
| 4ddacd99 AP |
550 | for($i=0; $i<14 && $i<$NUM; $i+=2) { |
| 551 | &load_b_pair("%o7",@B[$i],@B[$i+1]); | |
| 68c06bf6 AP |
552 | } |
| 553 | $code.=<<___; | |
| 554 | save %sp,-128,%sp; or $sentinel,%fp,%fp | |
| 555 | ___ | |
| 4ddacd99 AP |
556 | for(; $i<$NUM; $i+=2) { |
| 557 | &load_b_pair("%i7",@B[$i],@B[$i+1]); | |
| 558 | } | |
| 68c06bf6 | 559 | $code.=<<___; |
| 4ddacd99 AP |
560 | srax $pwr, 32, %o4 ! unpack $pwr |
| 561 | srl $pwr, %g0, %o5 | |
| 562 | sub %o4, 5, %o4 | |
| 563 | mov $pwrtbl, %i7 | |
| 564 | sllx %o4, 32, $pwr ! re-pack $pwr | |
| 565 | or %o5, $pwr, $pwr | |
| 566 | srl %o5, %o4, %o5 | |
| 68c06bf6 | 567 | ___ |
| 4ddacd99 | 568 | &load_ccr("%i7","%o5","%o4",1); |
| 68c06bf6 AP |
569 | \f |
| 570 | # magic ################################################################ | |
| 571 | for($i=0; $i<5; $i++) { | |
| 572 | $code.=<<___; | |
| 573 | .word 0x81b02940+$NUM-1 ! montsqr $NUM-1 | |
| 574 | fbu,pn %fcc3,.Labort_$NUM | |
| 575 | #ifndef __arch64__ | |
| 576 | and %fp,$sentinel,$sentinel | |
| 577 | brz,pn $sentinel,.Labort_$NUM | |
| 578 | #endif | |
| 579 | nop | |
| 580 | ___ | |
| 581 | } | |
| 582 | $code.=<<___; | |
| 4ddacd99 | 583 | wr %o4, %g0, %ccr |
| 68c06bf6 AP |
584 | .word 0x81b02920+$NUM-1 ! montmul $NUM-1 |
| 585 | fbu,pn %fcc3,.Labort_$NUM | |
| 586 | #ifndef __arch64__ | |
| 587 | and %fp,$sentinel,$sentinel | |
| 588 | brz,pn $sentinel,.Labort_$NUM | |
| 589 | #endif | |
| 68c06bf6 | 590 | |
| 4ddacd99 | 591 | srax $pwr, 32, %o4 |
| 68c06bf6 | 592 | #ifdef __arch64__ |
| 4ddacd99 | 593 | brgez %o4,.Lstride_$NUM |
| 68c06bf6 AP |
594 | restore |
| 595 | restore | |
| 596 | restore | |
| 597 | restore | |
| 598 | restore | |
| 599 | #else | |
| 4ddacd99 | 600 | brgez %o4,.Lstride_$NUM |
| 68c06bf6 AP |
601 | restore; and %fp,$sentinel,$sentinel |
| 602 | restore; and %fp,$sentinel,$sentinel | |
| 603 | restore; and %fp,$sentinel,$sentinel | |
| 604 | restore; and %fp,$sentinel,$sentinel | |
| 605 | brz,pn $sentinel,.Labort1_$NUM | |
| 606 | restore | |
| 607 | #endif | |
| 608 | ___ | |
| 609 | \f | |
| 610 | # save tp[$NUM] ######################################################## | |
| 611 | for($i=0; $i<14 && $i<$NUM; $i++) { | |
| 612 | $code.=<<___; | |
| 613 | movxtod @A[$i],@R[$i] | |
| 614 | ___ | |
| 615 | } | |
| 616 | $code.=<<___; | |
| 617 | #ifdef __arch64__ | |
| 618 | restore | |
| 619 | #else | |
| 620 | and %fp,$sentinel,$sentinel | |
| 621 | restore | |
| 622 | and $sentinel,1,%o7 | |
| 623 | and %fp,$sentinel,$sentinel | |
| 624 | srl %fp,0,%fp ! just in case? | |
| 625 | or %o7,$sentinel,$sentinel | |
| 626 | brz,a,pn $sentinel,.Ldone_$NUM | |
| 627 | mov 0,%i0 ! return failure | |
| 628 | #endif | |
| 629 | ___ | |
| 630 | for($i=0; $i<$NUM; $i++) { | |
| 631 | $code.=<<___; | |
| 632 | std @R[$i],[$tp+$i*8] | |
| 633 | ___ | |
| 634 | } | |
| 635 | $code.=<<___; | |
| 636 | mov 1,%i0 ! return success | |
| 637 | .Ldone_$NUM: | |
| 638 | ret | |
| 639 | restore | |
| 640 | ||
| 641 | .Labort_$NUM: | |
| 642 | restore | |
| 643 | restore | |
| 644 | restore | |
| 645 | restore | |
| 646 | restore | |
| 647 | .Labort1_$NUM: | |
| 648 | restore | |
| 649 | ||
| 650 | mov 0,%i0 ! return failure | |
| 651 | ret | |
| 652 | restore | |
| 653 | .type bn_pwr5_mont_t4_$NUM, #function | |
| 654 | .size bn_pwr5_mont_t4_$NUM, .-bn_pwr5_mont_t4_$NUM | |
| 655 | ___ | |
| 656 | } | |
| 657 | ||
| 658 | for ($i=8;$i<=32;$i+=8) { | |
| 659 | &generate_bn_pwr5_mont_t4($i); | |
| 660 | } | |
| 661 | \f | |
| 662 | { | |
| 663 | ######################################################################## | |
| 664 | # Fall-back subroutines | |
| 665 | # | |
| 666 | # copy of bn_mul_mont_vis3 adjusted for vectors of 64-bit values | |
| 667 | # | |
| 668 | ($n0,$m0,$m1,$lo0,$hi0, $lo1,$hi1,$aj,$alo,$nj,$nlo,$tj)= | |
| 669 | (map("%g$_",(1..5)),map("%o$_",(0..5,7))); | |
| 670 | ||
| 671 | # int bn_mul_mont( | |
| 672 | $rp="%o0"; # u64 *rp, | |
| 673 | $ap="%o1"; # const u64 *ap, | |
| 674 | $bp="%o2"; # const u64 *bp, | |
| 675 | $np="%o3"; # const u64 *np, | |
| 676 | $n0p="%o4"; # const BN_ULONG *n0, | |
| 677 | $num="%o5"; # int num); # caller ensures that num is >=3 | |
| 678 | $code.=<<___; | |
| 679 | .globl bn_mul_mont_t4 | |
| 680 | .align 32 | |
| 681 | bn_mul_mont_t4: | |
| 682 | add %sp, STACK_BIAS, %g4 ! real top of stack | |
| 683 | sll $num, 3, $num ! size in bytes | |
| 684 | add $num, 63, %g1 | |
| 685 | andn %g1, 63, %g1 ! buffer size rounded up to 64 bytes | |
| 686 | sub %g4, %g1, %g1 | |
| 687 | andn %g1, 63, %g1 ! align at 64 byte | |
| 688 | sub %g1, STACK_FRAME, %g1 ! new top of stack | |
| 689 | sub %g1, %g4, %g1 | |
| 690 | ||
| 691 | save %sp, %g1, %sp | |
| 692 | ___ | |
| 693 | # +-------------------------------+<----- %sp | |
| 694 | # . . | |
| 695 | # +-------------------------------+<----- aligned at 64 bytes | |
| 696 | # | __int64 tmp[0] | | |
| 697 | # +-------------------------------+ | |
| 698 | # . . | |
| 699 | # . . | |
| 700 | # +-------------------------------+<----- aligned at 64 bytes | |
| 701 | # . . | |
| 702 | ($rp,$ap,$bp,$np,$n0p,$num)=map("%i$_",(0..5)); | |
| 703 | ($t0,$t1,$t2,$t3,$cnt,$tp,$bufsz)=map("%l$_",(0..7)); | |
| 704 | ($ovf,$i)=($t0,$t1); | |
| 705 | $code.=<<___; | |
| 706 | ld [$n0p+0], $t0 ! pull n0[0..1] value | |
| 707 | ld [$n0p+4], $t1 | |
| 708 | add %sp, STACK_BIAS+STACK_FRAME, $tp | |
| 709 | ldx [$bp+0], $m0 ! m0=bp[0] | |
| 710 | sllx $t1, 32, $n0 | |
| 711 | add $bp, 8, $bp | |
| 712 | or $t0, $n0, $n0 | |
| 713 | \f | |
| 714 | ldx [$ap+0], $aj ! ap[0] | |
| 715 | ||
| 716 | mulx $aj, $m0, $lo0 ! ap[0]*bp[0] | |
| 717 | umulxhi $aj, $m0, $hi0 | |
| 718 | ||
| 719 | ldx [$ap+8], $aj ! ap[1] | |
| 720 | add $ap, 16, $ap | |
| 721 | ldx [$np+0], $nj ! np[0] | |
| 722 | ||
| 723 | mulx $lo0, $n0, $m1 ! "tp[0]"*n0 | |
| 724 | ||
| 725 | mulx $aj, $m0, $alo ! ap[1]*bp[0] | |
| 726 | umulxhi $aj, $m0, $aj ! ahi=aj | |
| 727 | ||
| 728 | mulx $nj, $m1, $lo1 ! np[0]*m1 | |
| 729 | umulxhi $nj, $m1, $hi1 | |
| 730 | ||
| 731 | ldx [$np+8], $nj ! np[1] | |
| 732 | ||
| 733 | addcc $lo0, $lo1, $lo1 | |
| 734 | add $np, 16, $np | |
| 735 | addxc %g0, $hi1, $hi1 | |
| 736 | ||
| 737 | mulx $nj, $m1, $nlo ! np[1]*m1 | |
| 738 | umulxhi $nj, $m1, $nj ! nhi=nj | |
| 739 | \f | |
| 740 | ba .L1st | |
| 741 | sub $num, 24, $cnt ! cnt=num-3 | |
| 742 | ||
| 743 | .align 16 | |
| 744 | .L1st: | |
| 745 | addcc $alo, $hi0, $lo0 | |
| 746 | addxc $aj, %g0, $hi0 | |
| 747 | ||
| 748 | ldx [$ap+0], $aj ! ap[j] | |
| 749 | addcc $nlo, $hi1, $lo1 | |
| 750 | add $ap, 8, $ap | |
| 751 | addxc $nj, %g0, $hi1 ! nhi=nj | |
| 752 | ||
| 753 | ldx [$np+0], $nj ! np[j] | |
| 754 | mulx $aj, $m0, $alo ! ap[j]*bp[0] | |
| 755 | add $np, 8, $np | |
| 756 | umulxhi $aj, $m0, $aj ! ahi=aj | |
| 757 | ||
| 758 | mulx $nj, $m1, $nlo ! np[j]*m1 | |
| 759 | addcc $lo0, $lo1, $lo1 ! np[j]*m1+ap[j]*bp[0] | |
| 760 | umulxhi $nj, $m1, $nj ! nhi=nj | |
| 761 | addxc %g0, $hi1, $hi1 | |
| 762 | stxa $lo1, [$tp]0xe2 ! tp[j-1] | |
| 763 | add $tp, 8, $tp ! tp++ | |
| 764 | ||
| 765 | brnz,pt $cnt, .L1st | |
| 766 | sub $cnt, 8, $cnt ! j-- | |
| 767 | !.L1st | |
| 768 | addcc $alo, $hi0, $lo0 | |
| 769 | addxc $aj, %g0, $hi0 ! ahi=aj | |
| 770 | ||
| 771 | addcc $nlo, $hi1, $lo1 | |
| 772 | addxc $nj, %g0, $hi1 | |
| 773 | addcc $lo0, $lo1, $lo1 ! np[j]*m1+ap[j]*bp[0] | |
| 774 | addxc %g0, $hi1, $hi1 | |
| 775 | stxa $lo1, [$tp]0xe2 ! tp[j-1] | |
| 776 | add $tp, 8, $tp | |
| 777 | ||
| 778 | addcc $hi0, $hi1, $hi1 | |
| 779 | addxc %g0, %g0, $ovf ! upmost overflow bit | |
| 780 | stxa $hi1, [$tp]0xe2 | |
| 781 | add $tp, 8, $tp | |
| 782 | \f | |
| 783 | ba .Louter | |
| 784 | sub $num, 16, $i ! i=num-2 | |
| 785 | ||
| 786 | .align 16 | |
| 787 | .Louter: | |
| 788 | ldx [$bp+0], $m0 ! m0=bp[i] | |
| 789 | add $bp, 8, $bp | |
| 790 | ||
| 791 | sub $ap, $num, $ap ! rewind | |
| 792 | sub $np, $num, $np | |
| 793 | sub $tp, $num, $tp | |
| 794 | ||
| 795 | ldx [$ap+0], $aj ! ap[0] | |
| 796 | ldx [$np+0], $nj ! np[0] | |
| 797 | ||
| 798 | mulx $aj, $m0, $lo0 ! ap[0]*bp[i] | |
| 799 | ldx [$tp], $tj ! tp[0] | |
| 800 | umulxhi $aj, $m0, $hi0 | |
| 801 | ldx [$ap+8], $aj ! ap[1] | |
| 802 | addcc $lo0, $tj, $lo0 ! ap[0]*bp[i]+tp[0] | |
| 803 | mulx $aj, $m0, $alo ! ap[1]*bp[i] | |
| 804 | addxc %g0, $hi0, $hi0 | |
| 805 | mulx $lo0, $n0, $m1 ! tp[0]*n0 | |
| 806 | umulxhi $aj, $m0, $aj ! ahi=aj | |
| 807 | mulx $nj, $m1, $lo1 ! np[0]*m1 | |
| 808 | add $ap, 16, $ap | |
| 809 | umulxhi $nj, $m1, $hi1 | |
| 810 | ldx [$np+8], $nj ! np[1] | |
| 811 | add $np, 16, $np | |
| 812 | addcc $lo1, $lo0, $lo1 | |
| 813 | mulx $nj, $m1, $nlo ! np[1]*m1 | |
| 814 | addxc %g0, $hi1, $hi1 | |
| 815 | umulxhi $nj, $m1, $nj ! nhi=nj | |
| 816 | \f | |
| 817 | ba .Linner | |
| 818 | sub $num, 24, $cnt ! cnt=num-3 | |
| 819 | .align 16 | |
| 820 | .Linner: | |
| 821 | addcc $alo, $hi0, $lo0 | |
| 822 | ldx [$tp+8], $tj ! tp[j] | |
| 823 | addxc $aj, %g0, $hi0 ! ahi=aj | |
| 824 | ldx [$ap+0], $aj ! ap[j] | |
| 825 | add $ap, 8, $ap | |
| 826 | addcc $nlo, $hi1, $lo1 | |
| 827 | mulx $aj, $m0, $alo ! ap[j]*bp[i] | |
| 828 | addxc $nj, %g0, $hi1 ! nhi=nj | |
| 829 | ldx [$np+0], $nj ! np[j] | |
| 830 | add $np, 8, $np | |
| 831 | umulxhi $aj, $m0, $aj ! ahi=aj | |
| 832 | addcc $lo0, $tj, $lo0 ! ap[j]*bp[i]+tp[j] | |
| 833 | mulx $nj, $m1, $nlo ! np[j]*m1 | |
| 834 | addxc %g0, $hi0, $hi0 | |
| 835 | umulxhi $nj, $m1, $nj ! nhi=nj | |
| 836 | addcc $lo1, $lo0, $lo1 ! np[j]*m1+ap[j]*bp[i]+tp[j] | |
| 837 | addxc %g0, $hi1, $hi1 | |
| 838 | stx $lo1, [$tp] ! tp[j-1] | |
| 839 | add $tp, 8, $tp | |
| 840 | brnz,pt $cnt, .Linner | |
| 841 | sub $cnt, 8, $cnt | |
| 842 | !.Linner | |
| 843 | ldx [$tp+8], $tj ! tp[j] | |
| 844 | addcc $alo, $hi0, $lo0 | |
| 845 | addxc $aj, %g0, $hi0 ! ahi=aj | |
| 846 | addcc $lo0, $tj, $lo0 ! ap[j]*bp[i]+tp[j] | |
| 847 | addxc %g0, $hi0, $hi0 | |
| 848 | ||
| 849 | addcc $nlo, $hi1, $lo1 | |
| 850 | addxc $nj, %g0, $hi1 ! nhi=nj | |
| 851 | addcc $lo1, $lo0, $lo1 ! np[j]*m1+ap[j]*bp[i]+tp[j] | |
| 852 | addxc %g0, $hi1, $hi1 | |
| 853 | stx $lo1, [$tp] ! tp[j-1] | |
| 854 | ||
| 855 | subcc %g0, $ovf, %g0 ! move upmost overflow to CCR.xcc | |
| 856 | addxccc $hi1, $hi0, $hi1 | |
| 857 | addxc %g0, %g0, $ovf | |
| 858 | stx $hi1, [$tp+8] | |
| 859 | add $tp, 16, $tp | |
| 860 | ||
| 861 | brnz,pt $i, .Louter | |
| 862 | sub $i, 8, $i | |
| 863 | \f | |
| 864 | sub $ap, $num, $ap ! rewind | |
| 865 | sub $np, $num, $np | |
| 866 | sub $tp, $num, $tp | |
| 867 | ba .Lsub | |
| 868 | subcc $num, 8, $cnt ! cnt=num-1 and clear CCR.xcc | |
| 869 | ||
| 870 | .align 16 | |
| 871 | .Lsub: | |
| 872 | ldx [$tp], $tj | |
| 873 | add $tp, 8, $tp | |
| 874 | ldx [$np+0], $nj | |
| 875 | add $np, 8, $np | |
| 876 | subccc $tj, $nj, $t2 ! tp[j]-np[j] | |
| 877 | srlx $tj, 32, $tj | |
| 878 | srlx $nj, 32, $nj | |
| 879 | subccc $tj, $nj, $t3 | |
| 880 | add $rp, 8, $rp | |
| 881 | st $t2, [$rp-4] ! reverse order | |
| 882 | st $t3, [$rp-8] | |
| 883 | brnz,pt $cnt, .Lsub | |
| 884 | sub $cnt, 8, $cnt | |
| 885 | ||
| 886 | sub $np, $num, $np ! rewind | |
| 887 | sub $tp, $num, $tp | |
| 888 | sub $rp, $num, $rp | |
| 889 | ||
| 774ff8fe | 890 | subccc $ovf, %g0, $ovf ! handle upmost overflow bit |
| 68c06bf6 AP |
891 | ba .Lcopy |
| 892 | sub $num, 8, $cnt | |
| 893 | ||
| 894 | .align 16 | |
| 774ff8fe AP |
895 | .Lcopy: ! conditional copy |
| 896 | ldx [$tp], $tj | |
| 897 | ldx [$rp+0], $t2 | |
| 68c06bf6 AP |
898 | stx %g0, [$tp] ! zap |
| 899 | add $tp, 8, $tp | |
| 774ff8fe | 900 | movcs %icc, $tj, $t2 |
| 68c06bf6 AP |
901 | stx $t2, [$rp+0] |
| 902 | add $rp, 8, $rp | |
| 903 | brnz $cnt, .Lcopy | |
| 904 | sub $cnt, 8, $cnt | |
| 905 | ||
| 906 | mov 1, %o0 | |
| 907 | ret | |
| 908 | restore | |
| 909 | .type bn_mul_mont_t4, #function | |
| 910 | .size bn_mul_mont_t4, .-bn_mul_mont_t4 | |
| 911 | ___ | |
| 912 | \f | |
| 913 | # int bn_mul_mont_gather5( | |
| 914 | $rp="%o0"; # u64 *rp, | |
| 915 | $ap="%o1"; # const u64 *ap, | |
| 916 | $bp="%o2"; # const u64 *pwrtbl, | |
| 917 | $np="%o3"; # const u64 *np, | |
| 918 | $n0p="%o4"; # const BN_ULONG *n0, | |
| 919 | $num="%o5"; # int num, # caller ensures that num is >=3 | |
| 920 | # int power); | |
| 921 | $code.=<<___; | |
| 922 | .globl bn_mul_mont_gather5_t4 | |
| 923 | .align 32 | |
| 924 | bn_mul_mont_gather5_t4: | |
| 925 | add %sp, STACK_BIAS, %g4 ! real top of stack | |
| 926 | sll $num, 3, $num ! size in bytes | |
| 927 | add $num, 63, %g1 | |
| 928 | andn %g1, 63, %g1 ! buffer size rounded up to 64 bytes | |
| 929 | sub %g4, %g1, %g1 | |
| 930 | andn %g1, 63, %g1 ! align at 64 byte | |
| 931 | sub %g1, STACK_FRAME, %g1 ! new top of stack | |
| 932 | sub %g1, %g4, %g1 | |
| 933 | LDPTR [%sp+STACK_7thARG], %g4 ! load power, 7th argument | |
| 934 | ||
| 935 | save %sp, %g1, %sp | |
| 936 | ___ | |
| 937 | # +-------------------------------+<----- %sp | |
| 938 | # . . | |
| 939 | # +-------------------------------+<----- aligned at 64 bytes | |
| 940 | # | __int64 tmp[0] | | |
| 941 | # +-------------------------------+ | |
| 942 | # . . | |
| 943 | # . . | |
| 944 | # +-------------------------------+<----- aligned at 64 bytes | |
| 945 | # . . | |
| 946 | ($rp,$ap,$bp,$np,$n0p,$num)=map("%i$_",(0..5)); | |
| 4ddacd99 | 947 | ($t0,$t1,$t2,$t3,$cnt,$tp,$bufsz,$ccr)=map("%l$_",(0..7)); |
| 68c06bf6 | 948 | ($ovf,$i)=($t0,$t1); |
| 4ddacd99 AP |
949 | &load_ccr($bp,"%g4",$ccr); |
| 950 | &load_b($bp,$m0,"%o7"); # m0=bp[0] | |
| 68c06bf6 | 951 | |
| 4ddacd99 | 952 | $code.=<<___; |
| 68c06bf6 AP |
953 | ld [$n0p+0], $t0 ! pull n0[0..1] value |
| 954 | ld [$n0p+4], $t1 | |
| 955 | add %sp, STACK_BIAS+STACK_FRAME, $tp | |
| 956 | sllx $t1, 32, $n0 | |
| 957 | or $t0, $n0, $n0 | |
| 958 | \f | |
| 959 | ldx [$ap+0], $aj ! ap[0] | |
| 960 | ||
| 961 | mulx $aj, $m0, $lo0 ! ap[0]*bp[0] | |
| 962 | umulxhi $aj, $m0, $hi0 | |
| 963 | ||
| 964 | ldx [$ap+8], $aj ! ap[1] | |
| 965 | add $ap, 16, $ap | |
| 966 | ldx [$np+0], $nj ! np[0] | |
| 967 | ||
| 968 | mulx $lo0, $n0, $m1 ! "tp[0]"*n0 | |
| 969 | ||
| 970 | mulx $aj, $m0, $alo ! ap[1]*bp[0] | |
| 971 | umulxhi $aj, $m0, $aj ! ahi=aj | |
| 972 | ||
| 973 | mulx $nj, $m1, $lo1 ! np[0]*m1 | |
| 974 | umulxhi $nj, $m1, $hi1 | |
| 975 | ||
| 976 | ldx [$np+8], $nj ! np[1] | |
| 977 | ||
| 978 | addcc $lo0, $lo1, $lo1 | |
| 979 | add $np, 16, $np | |
| 980 | addxc %g0, $hi1, $hi1 | |
| 981 | ||
| 982 | mulx $nj, $m1, $nlo ! np[1]*m1 | |
| 983 | umulxhi $nj, $m1, $nj ! nhi=nj | |
| 984 | \f | |
| 985 | ba .L1st_g5 | |
| 986 | sub $num, 24, $cnt ! cnt=num-3 | |
| 987 | ||
| 988 | .align 16 | |
| 989 | .L1st_g5: | |
| 990 | addcc $alo, $hi0, $lo0 | |
| 991 | addxc $aj, %g0, $hi0 | |
| 992 | ||
| 993 | ldx [$ap+0], $aj ! ap[j] | |
| 994 | addcc $nlo, $hi1, $lo1 | |
| 995 | add $ap, 8, $ap | |
| 996 | addxc $nj, %g0, $hi1 ! nhi=nj | |
| 997 | ||
| 998 | ldx [$np+0], $nj ! np[j] | |
| 999 | mulx $aj, $m0, $alo ! ap[j]*bp[0] | |
| 1000 | add $np, 8, $np | |
| 1001 | umulxhi $aj, $m0, $aj ! ahi=aj | |
| 1002 | ||
| 1003 | mulx $nj, $m1, $nlo ! np[j]*m1 | |
| 1004 | addcc $lo0, $lo1, $lo1 ! np[j]*m1+ap[j]*bp[0] | |
| 1005 | umulxhi $nj, $m1, $nj ! nhi=nj | |
| 1006 | addxc %g0, $hi1, $hi1 | |
| 1007 | stxa $lo1, [$tp]0xe2 ! tp[j-1] | |
| 1008 | add $tp, 8, $tp ! tp++ | |
| 1009 | ||
| 1010 | brnz,pt $cnt, .L1st_g5 | |
| 1011 | sub $cnt, 8, $cnt ! j-- | |
| 1012 | !.L1st_g5 | |
| 1013 | addcc $alo, $hi0, $lo0 | |
| 1014 | addxc $aj, %g0, $hi0 ! ahi=aj | |
| 1015 | ||
| 1016 | addcc $nlo, $hi1, $lo1 | |
| 1017 | addxc $nj, %g0, $hi1 | |
| 1018 | addcc $lo0, $lo1, $lo1 ! np[j]*m1+ap[j]*bp[0] | |
| 1019 | addxc %g0, $hi1, $hi1 | |
| 1020 | stxa $lo1, [$tp]0xe2 ! tp[j-1] | |
| 1021 | add $tp, 8, $tp | |
| 1022 | ||
| 1023 | addcc $hi0, $hi1, $hi1 | |
| 1024 | addxc %g0, %g0, $ovf ! upmost overflow bit | |
| 1025 | stxa $hi1, [$tp]0xe2 | |
| 1026 | add $tp, 8, $tp | |
| 1027 | \f | |
| 1028 | ba .Louter_g5 | |
| 1029 | sub $num, 16, $i ! i=num-2 | |
| 1030 | ||
| 1031 | .align 16 | |
| 1032 | .Louter_g5: | |
| 4ddacd99 | 1033 | wr $ccr, %g0, %ccr |
| 68c06bf6 | 1034 | ___ |
| 4ddacd99 | 1035 | &load_b($bp,$m0); # m0=bp[i] |
| 68c06bf6 | 1036 | $code.=<<___; |
| 68c06bf6 AP |
1037 | sub $ap, $num, $ap ! rewind |
| 1038 | sub $np, $num, $np | |
| 1039 | sub $tp, $num, $tp | |
| 1040 | ||
| 1041 | ldx [$ap+0], $aj ! ap[0] | |
| 1042 | ldx [$np+0], $nj ! np[0] | |
| 1043 | ||
| 1044 | mulx $aj, $m0, $lo0 ! ap[0]*bp[i] | |
| 1045 | ldx [$tp], $tj ! tp[0] | |
| 1046 | umulxhi $aj, $m0, $hi0 | |
| 1047 | ldx [$ap+8], $aj ! ap[1] | |
| 1048 | addcc $lo0, $tj, $lo0 ! ap[0]*bp[i]+tp[0] | |
| 1049 | mulx $aj, $m0, $alo ! ap[1]*bp[i] | |
| 1050 | addxc %g0, $hi0, $hi0 | |
| 1051 | mulx $lo0, $n0, $m1 ! tp[0]*n0 | |
| 1052 | umulxhi $aj, $m0, $aj ! ahi=aj | |
| 1053 | mulx $nj, $m1, $lo1 ! np[0]*m1 | |
| 1054 | add $ap, 16, $ap | |
| 1055 | umulxhi $nj, $m1, $hi1 | |
| 1056 | ldx [$np+8], $nj ! np[1] | |
| 1057 | add $np, 16, $np | |
| 1058 | addcc $lo1, $lo0, $lo1 | |
| 1059 | mulx $nj, $m1, $nlo ! np[1]*m1 | |
| 1060 | addxc %g0, $hi1, $hi1 | |
| 1061 | umulxhi $nj, $m1, $nj ! nhi=nj | |
| 1062 | \f | |
| 1063 | ba .Linner_g5 | |
| 1064 | sub $num, 24, $cnt ! cnt=num-3 | |
| 1065 | .align 16 | |
| 1066 | .Linner_g5: | |
| 1067 | addcc $alo, $hi0, $lo0 | |
| 1068 | ldx [$tp+8], $tj ! tp[j] | |
| 1069 | addxc $aj, %g0, $hi0 ! ahi=aj | |
| 1070 | ldx [$ap+0], $aj ! ap[j] | |
| 1071 | add $ap, 8, $ap | |
| 1072 | addcc $nlo, $hi1, $lo1 | |
| 1073 | mulx $aj, $m0, $alo ! ap[j]*bp[i] | |
| 1074 | addxc $nj, %g0, $hi1 ! nhi=nj | |
| 1075 | ldx [$np+0], $nj ! np[j] | |
| 1076 | add $np, 8, $np | |
| 1077 | umulxhi $aj, $m0, $aj ! ahi=aj | |
| 1078 | addcc $lo0, $tj, $lo0 ! ap[j]*bp[i]+tp[j] | |
| 1079 | mulx $nj, $m1, $nlo ! np[j]*m1 | |
| 1080 | addxc %g0, $hi0, $hi0 | |
| 1081 | umulxhi $nj, $m1, $nj ! nhi=nj | |
| 1082 | addcc $lo1, $lo0, $lo1 ! np[j]*m1+ap[j]*bp[i]+tp[j] | |
| 1083 | addxc %g0, $hi1, $hi1 | |
| 1084 | stx $lo1, [$tp] ! tp[j-1] | |
| 1085 | add $tp, 8, $tp | |
| 1086 | brnz,pt $cnt, .Linner_g5 | |
| 1087 | sub $cnt, 8, $cnt | |
| 1088 | !.Linner_g5 | |
| 1089 | ldx [$tp+8], $tj ! tp[j] | |
| 1090 | addcc $alo, $hi0, $lo0 | |
| 1091 | addxc $aj, %g0, $hi0 ! ahi=aj | |
| 1092 | addcc $lo0, $tj, $lo0 ! ap[j]*bp[i]+tp[j] | |
| 1093 | addxc %g0, $hi0, $hi0 | |
| 1094 | ||
| 1095 | addcc $nlo, $hi1, $lo1 | |
| 1096 | addxc $nj, %g0, $hi1 ! nhi=nj | |
| 1097 | addcc $lo1, $lo0, $lo1 ! np[j]*m1+ap[j]*bp[i]+tp[j] | |
| 1098 | addxc %g0, $hi1, $hi1 | |
| 1099 | stx $lo1, [$tp] ! tp[j-1] | |
| 1100 | ||
| 1101 | subcc %g0, $ovf, %g0 ! move upmost overflow to CCR.xcc | |
| 1102 | addxccc $hi1, $hi0, $hi1 | |
| 1103 | addxc %g0, %g0, $ovf | |
| 1104 | stx $hi1, [$tp+8] | |
| 1105 | add $tp, 16, $tp | |
| 1106 | ||
| 1107 | brnz,pt $i, .Louter_g5 | |
| 1108 | sub $i, 8, $i | |
| 1109 | \f | |
| 1110 | sub $ap, $num, $ap ! rewind | |
| 1111 | sub $np, $num, $np | |
| 1112 | sub $tp, $num, $tp | |
| 1113 | ba .Lsub_g5 | |
| 1114 | subcc $num, 8, $cnt ! cnt=num-1 and clear CCR.xcc | |
| 1115 | ||
| 1116 | .align 16 | |
| 1117 | .Lsub_g5: | |
| 1118 | ldx [$tp], $tj | |
| 1119 | add $tp, 8, $tp | |
| 1120 | ldx [$np+0], $nj | |
| 1121 | add $np, 8, $np | |
| 1122 | subccc $tj, $nj, $t2 ! tp[j]-np[j] | |
| 1123 | srlx $tj, 32, $tj | |
| 1124 | srlx $nj, 32, $nj | |
| 1125 | subccc $tj, $nj, $t3 | |
| 1126 | add $rp, 8, $rp | |
| 1127 | st $t2, [$rp-4] ! reverse order | |
| 1128 | st $t3, [$rp-8] | |
| 1129 | brnz,pt $cnt, .Lsub_g5 | |
| 1130 | sub $cnt, 8, $cnt | |
| 1131 | ||
| 1132 | sub $np, $num, $np ! rewind | |
| 1133 | sub $tp, $num, $tp | |
| 1134 | sub $rp, $num, $rp | |
| 1135 | ||
| 774ff8fe | 1136 | subccc $ovf, %g0, $ovf ! handle upmost overflow bit |
| 68c06bf6 AP |
1137 | ba .Lcopy_g5 |
| 1138 | sub $num, 8, $cnt | |
| 1139 | ||
| 1140 | .align 16 | |
| 774ff8fe AP |
1141 | .Lcopy_g5: ! conditional copy |
| 1142 | ldx [$tp], $tj | |
| 1143 | ldx [$rp+0], $t2 | |
| 68c06bf6 AP |
1144 | stx %g0, [$tp] ! zap |
| 1145 | add $tp, 8, $tp | |
| 774ff8fe | 1146 | movcs %icc, $tj, $t2 |
| 68c06bf6 AP |
1147 | stx $t2, [$rp+0] |
| 1148 | add $rp, 8, $rp | |
| 1149 | brnz $cnt, .Lcopy_g5 | |
| 1150 | sub $cnt, 8, $cnt | |
| 1151 | ||
| 1152 | mov 1, %o0 | |
| 1153 | ret | |
| 1154 | restore | |
| 1155 | .type bn_mul_mont_gather5_t4, #function | |
| 1156 | .size bn_mul_mont_gather5_t4, .-bn_mul_mont_gather5_t4 | |
| 1157 | ___ | |
| 1158 | } | |
| 1159 | \f | |
| 1160 | $code.=<<___; | |
| 1161 | .globl bn_flip_t4 | |
| 1162 | .align 32 | |
| 1163 | bn_flip_t4: | |
| 1164 | .Loop_flip: | |
| 1165 | ld [%o1+0], %o4 | |
| 1166 | sub %o2, 1, %o2 | |
| 1167 | ld [%o1+4], %o5 | |
| 1168 | add %o1, 8, %o1 | |
| 1169 | st %o5, [%o0+0] | |
| 1170 | st %o4, [%o0+4] | |
| 1171 | brnz %o2, .Loop_flip | |
| 1172 | add %o0, 8, %o0 | |
| 1173 | retl | |
| 1174 | nop | |
| 1175 | .type bn_flip_t4, #function | |
| 1176 | .size bn_flip_t4, .-bn_flip_t4 | |
| 1177 | ||
| 4ddacd99 | 1178 | .globl bn_flip_n_scatter5_t4 |
| 68c06bf6 | 1179 | .align 32 |
| 4ddacd99 | 1180 | bn_flip_n_scatter5_t4: |
| 68c06bf6 | 1181 | sll %o3, 3, %o3 |
| 4ddacd99 | 1182 | srl %o1, 1, %o1 |
| 68c06bf6 | 1183 | add %o3, %o2, %o2 ! &pwrtbl[pwr] |
| 4ddacd99 AP |
1184 | sub %o1, 1, %o1 |
| 1185 | .Loop_flip_n_scatter5: | |
| 1186 | ld [%o0+0], %o4 ! inp[i] | |
| 1187 | ld [%o0+4], %o5 | |
| 68c06bf6 | 1188 | add %o0, 8, %o0 |
| 4ddacd99 AP |
1189 | sllx %o5, 32, %o5 |
| 1190 | or %o4, %o5, %o5 | |
| 1191 | stx %o5, [%o2] | |
| 68c06bf6 | 1192 | add %o2, 32*8, %o2 |
| 4ddacd99 | 1193 | brnz %o1, .Loop_flip_n_scatter5 |
| 68c06bf6 AP |
1194 | sub %o1, 1, %o1 |
| 1195 | retl | |
| 1196 | nop | |
| 4ddacd99 AP |
1197 | .type bn_flip_n_scatter5_t4, #function |
| 1198 | .size bn_flip_n_scatter5_t4, .-bn_flip_n_scatter5_t4 | |
| 68c06bf6 AP |
1199 | |
| 1200 | .globl bn_gather5_t4 | |
| 1201 | .align 32 | |
| 1202 | bn_gather5_t4: | |
| 68c06bf6 | 1203 | ___ |
| 4ddacd99 | 1204 | &load_ccr("%o2","%o3","%g1"); |
| 68c06bf6 | 1205 | $code.=<<___; |
| 68c06bf6 AP |
1206 | sub %o1, 1, %o1 |
| 1207 | .Loop_gather5: | |
| 1208 | ___ | |
| 4ddacd99 | 1209 | &load_b("%o2","%g1"); |
| 68c06bf6 | 1210 | $code.=<<___; |
| 4ddacd99 | 1211 | stx %g1, [%o0] |
| 68c06bf6 AP |
1212 | add %o0, 8, %o0 |
| 1213 | brnz %o1, .Loop_gather5 | |
| 1214 | sub %o1, 1, %o1 | |
| 1215 | ||
| 1216 | retl | |
| 1217 | nop | |
| 1218 | .type bn_gather5_t4, #function | |
| 1219 | .size bn_gather5_t4, .-bn_gather5_t4 | |
| 4ddacd99 | 1220 | |
| 68c06bf6 AP |
1221 | .asciz "Montgomery Multiplication for SPARC T4, David S. Miller, Andy Polyakov" |
| 1222 | .align 4 | |
| 1223 | ___ | |
| 1224 | ||
| 1225 | &emit_assembler(); | |
| 1226 | ||
| a21314db | 1227 | close STDOUT or die "error closing STDOUT: $!"; |