Jussi Kivilinna | 56d76c9 | 2013-04-13 13:46:55 +0300 | [diff] [blame] | 1 | /* |
| 2 | * x86_64/AVX2 assembler optimized version of Serpent |
| 3 | * |
| 4 | * Copyright © 2012-2013 Jussi Kivilinna <jussi.kivilinna@mbnet.fi> |
| 5 | * |
| 6 | * Based on AVX assembler implementation of Serpent by: |
| 7 | * Copyright © 2012 Johannes Goetzfried |
| 8 | * <Johannes.Goetzfried@informatik.stud.uni-erlangen.de> |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or modify |
| 11 | * it under the terms of the GNU General Public License as published by |
| 12 | * the Free Software Foundation; either version 2 of the License, or |
| 13 | * (at your option) any later version. |
| 14 | * |
| 15 | */ |
| 16 | |
| 17 | #include <linux/linkage.h> |
| 18 | #include "glue_helper-asm-avx2.S" |
| 19 | |
| 20 | .file "serpent-avx2-asm_64.S" |
| 21 | |
| 22 | .data |
| 23 | .align 16 |
| 24 | |
| 25 | .Lbswap128_mask: |
| 26 | .byte 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 |
| 27 | .Lxts_gf128mul_and_shl1_mask_0: |
| 28 | .byte 0x87, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0 |
| 29 | .Lxts_gf128mul_and_shl1_mask_1: |
| 30 | .byte 0x0e, 1, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0 |
| 31 | |
| 32 | .text |
| 33 | |
| 34 | #define CTX %rdi |
| 35 | |
| 36 | #define RNOT %ymm0 |
| 37 | #define tp %ymm1 |
| 38 | |
| 39 | #define RA1 %ymm2 |
| 40 | #define RA2 %ymm3 |
| 41 | #define RB1 %ymm4 |
| 42 | #define RB2 %ymm5 |
| 43 | #define RC1 %ymm6 |
| 44 | #define RC2 %ymm7 |
| 45 | #define RD1 %ymm8 |
| 46 | #define RD2 %ymm9 |
| 47 | #define RE1 %ymm10 |
| 48 | #define RE2 %ymm11 |
| 49 | |
| 50 | #define RK0 %ymm12 |
| 51 | #define RK1 %ymm13 |
| 52 | #define RK2 %ymm14 |
| 53 | #define RK3 %ymm15 |
| 54 | |
| 55 | #define RK0x %xmm12 |
| 56 | #define RK1x %xmm13 |
| 57 | #define RK2x %xmm14 |
| 58 | #define RK3x %xmm15 |
| 59 | |
| 60 | #define S0_1(x0, x1, x2, x3, x4) \ |
| 61 | vpor x0, x3, tp; \ |
| 62 | vpxor x3, x0, x0; \ |
| 63 | vpxor x2, x3, x4; \ |
| 64 | vpxor RNOT, x4, x4; \ |
| 65 | vpxor x1, tp, x3; \ |
| 66 | vpand x0, x1, x1; \ |
| 67 | vpxor x4, x1, x1; \ |
| 68 | vpxor x0, x2, x2; |
| 69 | #define S0_2(x0, x1, x2, x3, x4) \ |
| 70 | vpxor x3, x0, x0; \ |
| 71 | vpor x0, x4, x4; \ |
| 72 | vpxor x2, x0, x0; \ |
| 73 | vpand x1, x2, x2; \ |
| 74 | vpxor x2, x3, x3; \ |
| 75 | vpxor RNOT, x1, x1; \ |
| 76 | vpxor x4, x2, x2; \ |
| 77 | vpxor x2, x1, x1; |
| 78 | |
| 79 | #define S1_1(x0, x1, x2, x3, x4) \ |
| 80 | vpxor x0, x1, tp; \ |
| 81 | vpxor x3, x0, x0; \ |
| 82 | vpxor RNOT, x3, x3; \ |
| 83 | vpand tp, x1, x4; \ |
| 84 | vpor tp, x0, x0; \ |
| 85 | vpxor x2, x3, x3; \ |
| 86 | vpxor x3, x0, x0; \ |
| 87 | vpxor x3, tp, x1; |
| 88 | #define S1_2(x0, x1, x2, x3, x4) \ |
| 89 | vpxor x4, x3, x3; \ |
| 90 | vpor x4, x1, x1; \ |
| 91 | vpxor x2, x4, x4; \ |
| 92 | vpand x0, x2, x2; \ |
| 93 | vpxor x1, x2, x2; \ |
| 94 | vpor x0, x1, x1; \ |
| 95 | vpxor RNOT, x0, x0; \ |
| 96 | vpxor x2, x0, x0; \ |
| 97 | vpxor x1, x4, x4; |
| 98 | |
| 99 | #define S2_1(x0, x1, x2, x3, x4) \ |
| 100 | vpxor RNOT, x3, x3; \ |
| 101 | vpxor x0, x1, x1; \ |
| 102 | vpand x2, x0, tp; \ |
| 103 | vpxor x3, tp, tp; \ |
| 104 | vpor x0, x3, x3; \ |
| 105 | vpxor x1, x2, x2; \ |
| 106 | vpxor x1, x3, x3; \ |
| 107 | vpand tp, x1, x1; |
| 108 | #define S2_2(x0, x1, x2, x3, x4) \ |
| 109 | vpxor x2, tp, tp; \ |
| 110 | vpand x3, x2, x2; \ |
| 111 | vpor x1, x3, x3; \ |
| 112 | vpxor RNOT, tp, tp; \ |
| 113 | vpxor tp, x3, x3; \ |
| 114 | vpxor tp, x0, x4; \ |
| 115 | vpxor x2, tp, x0; \ |
| 116 | vpor x2, x1, x1; |
| 117 | |
| 118 | #define S3_1(x0, x1, x2, x3, x4) \ |
| 119 | vpxor x3, x1, tp; \ |
| 120 | vpor x0, x3, x3; \ |
| 121 | vpand x0, x1, x4; \ |
| 122 | vpxor x2, x0, x0; \ |
| 123 | vpxor tp, x2, x2; \ |
| 124 | vpand x3, tp, x1; \ |
| 125 | vpxor x3, x2, x2; \ |
| 126 | vpor x4, x0, x0; \ |
| 127 | vpxor x3, x4, x4; |
| 128 | #define S3_2(x0, x1, x2, x3, x4) \ |
| 129 | vpxor x0, x1, x1; \ |
| 130 | vpand x3, x0, x0; \ |
| 131 | vpand x4, x3, x3; \ |
| 132 | vpxor x2, x3, x3; \ |
| 133 | vpor x1, x4, x4; \ |
| 134 | vpand x1, x2, x2; \ |
| 135 | vpxor x3, x4, x4; \ |
| 136 | vpxor x3, x0, x0; \ |
| 137 | vpxor x2, x3, x3; |
| 138 | |
| 139 | #define S4_1(x0, x1, x2, x3, x4) \ |
| 140 | vpand x0, x3, tp; \ |
| 141 | vpxor x3, x0, x0; \ |
| 142 | vpxor x2, tp, tp; \ |
| 143 | vpor x3, x2, x2; \ |
| 144 | vpxor x1, x0, x0; \ |
| 145 | vpxor tp, x3, x4; \ |
| 146 | vpor x0, x2, x2; \ |
| 147 | vpxor x1, x2, x2; |
| 148 | #define S4_2(x0, x1, x2, x3, x4) \ |
| 149 | vpand x0, x1, x1; \ |
| 150 | vpxor x4, x1, x1; \ |
| 151 | vpand x2, x4, x4; \ |
| 152 | vpxor tp, x2, x2; \ |
| 153 | vpxor x0, x4, x4; \ |
| 154 | vpor x1, tp, x3; \ |
| 155 | vpxor RNOT, x1, x1; \ |
| 156 | vpxor x0, x3, x3; |
| 157 | |
| 158 | #define S5_1(x0, x1, x2, x3, x4) \ |
| 159 | vpor x0, x1, tp; \ |
| 160 | vpxor tp, x2, x2; \ |
| 161 | vpxor RNOT, x3, x3; \ |
| 162 | vpxor x0, x1, x4; \ |
| 163 | vpxor x2, x0, x0; \ |
| 164 | vpand x4, tp, x1; \ |
| 165 | vpor x3, x4, x4; \ |
| 166 | vpxor x0, x4, x4; |
| 167 | #define S5_2(x0, x1, x2, x3, x4) \ |
| 168 | vpand x3, x0, x0; \ |
| 169 | vpxor x3, x1, x1; \ |
| 170 | vpxor x2, x3, x3; \ |
| 171 | vpxor x1, x0, x0; \ |
| 172 | vpand x4, x2, x2; \ |
| 173 | vpxor x2, x1, x1; \ |
| 174 | vpand x0, x2, x2; \ |
| 175 | vpxor x2, x3, x3; |
| 176 | |
| 177 | #define S6_1(x0, x1, x2, x3, x4) \ |
| 178 | vpxor x0, x3, x3; \ |
| 179 | vpxor x2, x1, tp; \ |
| 180 | vpxor x0, x2, x2; \ |
| 181 | vpand x3, x0, x0; \ |
| 182 | vpor x3, tp, tp; \ |
| 183 | vpxor RNOT, x1, x4; \ |
| 184 | vpxor tp, x0, x0; \ |
| 185 | vpxor x2, tp, x1; |
| 186 | #define S6_2(x0, x1, x2, x3, x4) \ |
| 187 | vpxor x4, x3, x3; \ |
| 188 | vpxor x0, x4, x4; \ |
| 189 | vpand x0, x2, x2; \ |
| 190 | vpxor x1, x4, x4; \ |
| 191 | vpxor x3, x2, x2; \ |
| 192 | vpand x1, x3, x3; \ |
| 193 | vpxor x0, x3, x3; \ |
| 194 | vpxor x2, x1, x1; |
| 195 | |
| 196 | #define S7_1(x0, x1, x2, x3, x4) \ |
| 197 | vpxor RNOT, x1, tp; \ |
| 198 | vpxor RNOT, x0, x0; \ |
| 199 | vpand x2, tp, x1; \ |
| 200 | vpxor x3, x1, x1; \ |
| 201 | vpor tp, x3, x3; \ |
| 202 | vpxor x2, tp, x4; \ |
| 203 | vpxor x3, x2, x2; \ |
| 204 | vpxor x0, x3, x3; \ |
| 205 | vpor x1, x0, x0; |
| 206 | #define S7_2(x0, x1, x2, x3, x4) \ |
| 207 | vpand x0, x2, x2; \ |
| 208 | vpxor x4, x0, x0; \ |
| 209 | vpxor x3, x4, x4; \ |
| 210 | vpand x0, x3, x3; \ |
| 211 | vpxor x1, x4, x4; \ |
| 212 | vpxor x4, x2, x2; \ |
| 213 | vpxor x1, x3, x3; \ |
| 214 | vpor x0, x4, x4; \ |
| 215 | vpxor x1, x4, x4; |
| 216 | |
| 217 | #define SI0_1(x0, x1, x2, x3, x4) \ |
| 218 | vpxor x0, x1, x1; \ |
| 219 | vpor x1, x3, tp; \ |
| 220 | vpxor x1, x3, x4; \ |
| 221 | vpxor RNOT, x0, x0; \ |
| 222 | vpxor tp, x2, x2; \ |
| 223 | vpxor x0, tp, x3; \ |
| 224 | vpand x1, x0, x0; \ |
| 225 | vpxor x2, x0, x0; |
| 226 | #define SI0_2(x0, x1, x2, x3, x4) \ |
| 227 | vpand x3, x2, x2; \ |
| 228 | vpxor x4, x3, x3; \ |
| 229 | vpxor x3, x2, x2; \ |
| 230 | vpxor x3, x1, x1; \ |
| 231 | vpand x0, x3, x3; \ |
| 232 | vpxor x0, x1, x1; \ |
| 233 | vpxor x2, x0, x0; \ |
| 234 | vpxor x3, x4, x4; |
| 235 | |
| 236 | #define SI1_1(x0, x1, x2, x3, x4) \ |
| 237 | vpxor x3, x1, x1; \ |
| 238 | vpxor x2, x0, tp; \ |
| 239 | vpxor RNOT, x2, x2; \ |
| 240 | vpor x1, x0, x4; \ |
| 241 | vpxor x3, x4, x4; \ |
| 242 | vpand x1, x3, x3; \ |
| 243 | vpxor x2, x1, x1; \ |
| 244 | vpand x4, x2, x2; |
| 245 | #define SI1_2(x0, x1, x2, x3, x4) \ |
| 246 | vpxor x1, x4, x4; \ |
| 247 | vpor x3, x1, x1; \ |
| 248 | vpxor tp, x3, x3; \ |
| 249 | vpxor tp, x2, x2; \ |
| 250 | vpor x4, tp, x0; \ |
| 251 | vpxor x4, x2, x2; \ |
| 252 | vpxor x0, x1, x1; \ |
| 253 | vpxor x1, x4, x4; |
| 254 | |
| 255 | #define SI2_1(x0, x1, x2, x3, x4) \ |
| 256 | vpxor x1, x2, x2; \ |
| 257 | vpxor RNOT, x3, tp; \ |
| 258 | vpor x2, tp, tp; \ |
| 259 | vpxor x3, x2, x2; \ |
| 260 | vpxor x0, x3, x4; \ |
| 261 | vpxor x1, tp, x3; \ |
| 262 | vpor x2, x1, x1; \ |
| 263 | vpxor x0, x2, x2; |
| 264 | #define SI2_2(x0, x1, x2, x3, x4) \ |
| 265 | vpxor x4, x1, x1; \ |
| 266 | vpor x3, x4, x4; \ |
| 267 | vpxor x3, x2, x2; \ |
| 268 | vpxor x2, x4, x4; \ |
| 269 | vpand x1, x2, x2; \ |
| 270 | vpxor x3, x2, x2; \ |
| 271 | vpxor x4, x3, x3; \ |
| 272 | vpxor x0, x4, x4; |
| 273 | |
| 274 | #define SI3_1(x0, x1, x2, x3, x4) \ |
| 275 | vpxor x1, x2, x2; \ |
| 276 | vpand x2, x1, tp; \ |
| 277 | vpxor x0, tp, tp; \ |
| 278 | vpor x1, x0, x0; \ |
| 279 | vpxor x3, x1, x4; \ |
| 280 | vpxor x3, x0, x0; \ |
| 281 | vpor tp, x3, x3; \ |
| 282 | vpxor x2, tp, x1; |
| 283 | #define SI3_2(x0, x1, x2, x3, x4) \ |
| 284 | vpxor x3, x1, x1; \ |
| 285 | vpxor x2, x0, x0; \ |
| 286 | vpxor x3, x2, x2; \ |
| 287 | vpand x1, x3, x3; \ |
| 288 | vpxor x0, x1, x1; \ |
| 289 | vpand x2, x0, x0; \ |
| 290 | vpxor x3, x4, x4; \ |
| 291 | vpxor x0, x3, x3; \ |
| 292 | vpxor x1, x0, x0; |
| 293 | |
| 294 | #define SI4_1(x0, x1, x2, x3, x4) \ |
| 295 | vpxor x3, x2, x2; \ |
| 296 | vpand x1, x0, tp; \ |
| 297 | vpxor x2, tp, tp; \ |
| 298 | vpor x3, x2, x2; \ |
| 299 | vpxor RNOT, x0, x4; \ |
| 300 | vpxor tp, x1, x1; \ |
| 301 | vpxor x2, tp, x0; \ |
| 302 | vpand x4, x2, x2; |
| 303 | #define SI4_2(x0, x1, x2, x3, x4) \ |
| 304 | vpxor x0, x2, x2; \ |
| 305 | vpor x4, x0, x0; \ |
| 306 | vpxor x3, x0, x0; \ |
| 307 | vpand x2, x3, x3; \ |
| 308 | vpxor x3, x4, x4; \ |
| 309 | vpxor x1, x3, x3; \ |
| 310 | vpand x0, x1, x1; \ |
| 311 | vpxor x1, x4, x4; \ |
| 312 | vpxor x3, x0, x0; |
| 313 | |
| 314 | #define SI5_1(x0, x1, x2, x3, x4) \ |
| 315 | vpor x2, x1, tp; \ |
| 316 | vpxor x1, x2, x2; \ |
| 317 | vpxor x3, tp, tp; \ |
| 318 | vpand x1, x3, x3; \ |
| 319 | vpxor x3, x2, x2; \ |
| 320 | vpor x0, x3, x3; \ |
| 321 | vpxor RNOT, x0, x0; \ |
| 322 | vpxor x2, x3, x3; \ |
| 323 | vpor x0, x2, x2; |
| 324 | #define SI5_2(x0, x1, x2, x3, x4) \ |
| 325 | vpxor tp, x1, x4; \ |
| 326 | vpxor x4, x2, x2; \ |
| 327 | vpand x0, x4, x4; \ |
| 328 | vpxor tp, x0, x0; \ |
| 329 | vpxor x3, tp, x1; \ |
| 330 | vpand x2, x0, x0; \ |
| 331 | vpxor x3, x2, x2; \ |
| 332 | vpxor x2, x0, x0; \ |
| 333 | vpxor x4, x2, x2; \ |
| 334 | vpxor x3, x4, x4; |
| 335 | |
| 336 | #define SI6_1(x0, x1, x2, x3, x4) \ |
| 337 | vpxor x2, x0, x0; \ |
| 338 | vpand x3, x0, tp; \ |
| 339 | vpxor x3, x2, x2; \ |
| 340 | vpxor x2, tp, tp; \ |
| 341 | vpxor x1, x3, x3; \ |
| 342 | vpor x0, x2, x2; \ |
| 343 | vpxor x3, x2, x2; \ |
| 344 | vpand tp, x3, x3; |
| 345 | #define SI6_2(x0, x1, x2, x3, x4) \ |
| 346 | vpxor RNOT, tp, tp; \ |
| 347 | vpxor x1, x3, x3; \ |
| 348 | vpand x2, x1, x1; \ |
| 349 | vpxor tp, x0, x4; \ |
| 350 | vpxor x4, x3, x3; \ |
| 351 | vpxor x2, x4, x4; \ |
| 352 | vpxor x1, tp, x0; \ |
| 353 | vpxor x0, x2, x2; |
| 354 | |
| 355 | #define SI7_1(x0, x1, x2, x3, x4) \ |
| 356 | vpand x0, x3, tp; \ |
| 357 | vpxor x2, x0, x0; \ |
| 358 | vpor x3, x2, x2; \ |
| 359 | vpxor x1, x3, x4; \ |
| 360 | vpxor RNOT, x0, x0; \ |
| 361 | vpor tp, x1, x1; \ |
| 362 | vpxor x0, x4, x4; \ |
| 363 | vpand x2, x0, x0; \ |
| 364 | vpxor x1, x0, x0; |
| 365 | #define SI7_2(x0, x1, x2, x3, x4) \ |
| 366 | vpand x2, x1, x1; \ |
| 367 | vpxor x2, tp, x3; \ |
| 368 | vpxor x3, x4, x4; \ |
| 369 | vpand x3, x2, x2; \ |
| 370 | vpor x0, x3, x3; \ |
| 371 | vpxor x4, x1, x1; \ |
| 372 | vpxor x4, x3, x3; \ |
| 373 | vpand x0, x4, x4; \ |
| 374 | vpxor x2, x4, x4; |
| 375 | |
| 376 | #define get_key(i,j,t) \ |
| 377 | vpbroadcastd (4*(i)+(j))*4(CTX), t; |
| 378 | |
| 379 | #define K2(x0, x1, x2, x3, x4, i) \ |
| 380 | get_key(i, 0, RK0); \ |
| 381 | get_key(i, 1, RK1); \ |
| 382 | get_key(i, 2, RK2); \ |
| 383 | get_key(i, 3, RK3); \ |
| 384 | vpxor RK0, x0 ## 1, x0 ## 1; \ |
| 385 | vpxor RK1, x1 ## 1, x1 ## 1; \ |
| 386 | vpxor RK2, x2 ## 1, x2 ## 1; \ |
| 387 | vpxor RK3, x3 ## 1, x3 ## 1; \ |
| 388 | vpxor RK0, x0 ## 2, x0 ## 2; \ |
| 389 | vpxor RK1, x1 ## 2, x1 ## 2; \ |
| 390 | vpxor RK2, x2 ## 2, x2 ## 2; \ |
| 391 | vpxor RK3, x3 ## 2, x3 ## 2; |
| 392 | |
| 393 | #define LK2(x0, x1, x2, x3, x4, i) \ |
| 394 | vpslld $13, x0 ## 1, x4 ## 1; \ |
| 395 | vpsrld $(32 - 13), x0 ## 1, x0 ## 1; \ |
| 396 | vpor x4 ## 1, x0 ## 1, x0 ## 1; \ |
| 397 | vpxor x0 ## 1, x1 ## 1, x1 ## 1; \ |
| 398 | vpslld $3, x2 ## 1, x4 ## 1; \ |
| 399 | vpsrld $(32 - 3), x2 ## 1, x2 ## 1; \ |
| 400 | vpor x4 ## 1, x2 ## 1, x2 ## 1; \ |
| 401 | vpxor x2 ## 1, x1 ## 1, x1 ## 1; \ |
| 402 | vpslld $13, x0 ## 2, x4 ## 2; \ |
| 403 | vpsrld $(32 - 13), x0 ## 2, x0 ## 2; \ |
| 404 | vpor x4 ## 2, x0 ## 2, x0 ## 2; \ |
| 405 | vpxor x0 ## 2, x1 ## 2, x1 ## 2; \ |
| 406 | vpslld $3, x2 ## 2, x4 ## 2; \ |
| 407 | vpsrld $(32 - 3), x2 ## 2, x2 ## 2; \ |
| 408 | vpor x4 ## 2, x2 ## 2, x2 ## 2; \ |
| 409 | vpxor x2 ## 2, x1 ## 2, x1 ## 2; \ |
| 410 | vpslld $1, x1 ## 1, x4 ## 1; \ |
| 411 | vpsrld $(32 - 1), x1 ## 1, x1 ## 1; \ |
| 412 | vpor x4 ## 1, x1 ## 1, x1 ## 1; \ |
| 413 | vpslld $3, x0 ## 1, x4 ## 1; \ |
| 414 | vpxor x2 ## 1, x3 ## 1, x3 ## 1; \ |
| 415 | vpxor x4 ## 1, x3 ## 1, x3 ## 1; \ |
| 416 | get_key(i, 1, RK1); \ |
| 417 | vpslld $1, x1 ## 2, x4 ## 2; \ |
| 418 | vpsrld $(32 - 1), x1 ## 2, x1 ## 2; \ |
| 419 | vpor x4 ## 2, x1 ## 2, x1 ## 2; \ |
| 420 | vpslld $3, x0 ## 2, x4 ## 2; \ |
| 421 | vpxor x2 ## 2, x3 ## 2, x3 ## 2; \ |
| 422 | vpxor x4 ## 2, x3 ## 2, x3 ## 2; \ |
| 423 | get_key(i, 3, RK3); \ |
| 424 | vpslld $7, x3 ## 1, x4 ## 1; \ |
| 425 | vpsrld $(32 - 7), x3 ## 1, x3 ## 1; \ |
| 426 | vpor x4 ## 1, x3 ## 1, x3 ## 1; \ |
| 427 | vpslld $7, x1 ## 1, x4 ## 1; \ |
| 428 | vpxor x1 ## 1, x0 ## 1, x0 ## 1; \ |
| 429 | vpxor x3 ## 1, x0 ## 1, x0 ## 1; \ |
| 430 | vpxor x3 ## 1, x2 ## 1, x2 ## 1; \ |
| 431 | vpxor x4 ## 1, x2 ## 1, x2 ## 1; \ |
| 432 | get_key(i, 0, RK0); \ |
| 433 | vpslld $7, x3 ## 2, x4 ## 2; \ |
| 434 | vpsrld $(32 - 7), x3 ## 2, x3 ## 2; \ |
| 435 | vpor x4 ## 2, x3 ## 2, x3 ## 2; \ |
| 436 | vpslld $7, x1 ## 2, x4 ## 2; \ |
| 437 | vpxor x1 ## 2, x0 ## 2, x0 ## 2; \ |
| 438 | vpxor x3 ## 2, x0 ## 2, x0 ## 2; \ |
| 439 | vpxor x3 ## 2, x2 ## 2, x2 ## 2; \ |
| 440 | vpxor x4 ## 2, x2 ## 2, x2 ## 2; \ |
| 441 | get_key(i, 2, RK2); \ |
| 442 | vpxor RK1, x1 ## 1, x1 ## 1; \ |
| 443 | vpxor RK3, x3 ## 1, x3 ## 1; \ |
| 444 | vpslld $5, x0 ## 1, x4 ## 1; \ |
| 445 | vpsrld $(32 - 5), x0 ## 1, x0 ## 1; \ |
| 446 | vpor x4 ## 1, x0 ## 1, x0 ## 1; \ |
| 447 | vpslld $22, x2 ## 1, x4 ## 1; \ |
| 448 | vpsrld $(32 - 22), x2 ## 1, x2 ## 1; \ |
| 449 | vpor x4 ## 1, x2 ## 1, x2 ## 1; \ |
| 450 | vpxor RK0, x0 ## 1, x0 ## 1; \ |
| 451 | vpxor RK2, x2 ## 1, x2 ## 1; \ |
| 452 | vpxor RK1, x1 ## 2, x1 ## 2; \ |
| 453 | vpxor RK3, x3 ## 2, x3 ## 2; \ |
| 454 | vpslld $5, x0 ## 2, x4 ## 2; \ |
| 455 | vpsrld $(32 - 5), x0 ## 2, x0 ## 2; \ |
| 456 | vpor x4 ## 2, x0 ## 2, x0 ## 2; \ |
| 457 | vpslld $22, x2 ## 2, x4 ## 2; \ |
| 458 | vpsrld $(32 - 22), x2 ## 2, x2 ## 2; \ |
| 459 | vpor x4 ## 2, x2 ## 2, x2 ## 2; \ |
| 460 | vpxor RK0, x0 ## 2, x0 ## 2; \ |
| 461 | vpxor RK2, x2 ## 2, x2 ## 2; |
| 462 | |
| 463 | #define KL2(x0, x1, x2, x3, x4, i) \ |
| 464 | vpxor RK0, x0 ## 1, x0 ## 1; \ |
| 465 | vpxor RK2, x2 ## 1, x2 ## 1; \ |
| 466 | vpsrld $5, x0 ## 1, x4 ## 1; \ |
| 467 | vpslld $(32 - 5), x0 ## 1, x0 ## 1; \ |
| 468 | vpor x4 ## 1, x0 ## 1, x0 ## 1; \ |
| 469 | vpxor RK3, x3 ## 1, x3 ## 1; \ |
| 470 | vpxor RK1, x1 ## 1, x1 ## 1; \ |
| 471 | vpsrld $22, x2 ## 1, x4 ## 1; \ |
| 472 | vpslld $(32 - 22), x2 ## 1, x2 ## 1; \ |
| 473 | vpor x4 ## 1, x2 ## 1, x2 ## 1; \ |
| 474 | vpxor x3 ## 1, x2 ## 1, x2 ## 1; \ |
| 475 | vpxor RK0, x0 ## 2, x0 ## 2; \ |
| 476 | vpxor RK2, x2 ## 2, x2 ## 2; \ |
| 477 | vpsrld $5, x0 ## 2, x4 ## 2; \ |
| 478 | vpslld $(32 - 5), x0 ## 2, x0 ## 2; \ |
| 479 | vpor x4 ## 2, x0 ## 2, x0 ## 2; \ |
| 480 | vpxor RK3, x3 ## 2, x3 ## 2; \ |
| 481 | vpxor RK1, x1 ## 2, x1 ## 2; \ |
| 482 | vpsrld $22, x2 ## 2, x4 ## 2; \ |
| 483 | vpslld $(32 - 22), x2 ## 2, x2 ## 2; \ |
| 484 | vpor x4 ## 2, x2 ## 2, x2 ## 2; \ |
| 485 | vpxor x3 ## 2, x2 ## 2, x2 ## 2; \ |
| 486 | vpxor x3 ## 1, x0 ## 1, x0 ## 1; \ |
| 487 | vpslld $7, x1 ## 1, x4 ## 1; \ |
| 488 | vpxor x1 ## 1, x0 ## 1, x0 ## 1; \ |
| 489 | vpxor x4 ## 1, x2 ## 1, x2 ## 1; \ |
| 490 | vpsrld $1, x1 ## 1, x4 ## 1; \ |
| 491 | vpslld $(32 - 1), x1 ## 1, x1 ## 1; \ |
| 492 | vpor x4 ## 1, x1 ## 1, x1 ## 1; \ |
| 493 | vpxor x3 ## 2, x0 ## 2, x0 ## 2; \ |
| 494 | vpslld $7, x1 ## 2, x4 ## 2; \ |
| 495 | vpxor x1 ## 2, x0 ## 2, x0 ## 2; \ |
| 496 | vpxor x4 ## 2, x2 ## 2, x2 ## 2; \ |
| 497 | vpsrld $1, x1 ## 2, x4 ## 2; \ |
| 498 | vpslld $(32 - 1), x1 ## 2, x1 ## 2; \ |
| 499 | vpor x4 ## 2, x1 ## 2, x1 ## 2; \ |
| 500 | vpsrld $7, x3 ## 1, x4 ## 1; \ |
| 501 | vpslld $(32 - 7), x3 ## 1, x3 ## 1; \ |
| 502 | vpor x4 ## 1, x3 ## 1, x3 ## 1; \ |
| 503 | vpxor x0 ## 1, x1 ## 1, x1 ## 1; \ |
| 504 | vpslld $3, x0 ## 1, x4 ## 1; \ |
| 505 | vpxor x4 ## 1, x3 ## 1, x3 ## 1; \ |
| 506 | vpsrld $7, x3 ## 2, x4 ## 2; \ |
| 507 | vpslld $(32 - 7), x3 ## 2, x3 ## 2; \ |
| 508 | vpor x4 ## 2, x3 ## 2, x3 ## 2; \ |
| 509 | vpxor x0 ## 2, x1 ## 2, x1 ## 2; \ |
| 510 | vpslld $3, x0 ## 2, x4 ## 2; \ |
| 511 | vpxor x4 ## 2, x3 ## 2, x3 ## 2; \ |
| 512 | vpsrld $13, x0 ## 1, x4 ## 1; \ |
| 513 | vpslld $(32 - 13), x0 ## 1, x0 ## 1; \ |
| 514 | vpor x4 ## 1, x0 ## 1, x0 ## 1; \ |
| 515 | vpxor x2 ## 1, x1 ## 1, x1 ## 1; \ |
| 516 | vpxor x2 ## 1, x3 ## 1, x3 ## 1; \ |
| 517 | vpsrld $3, x2 ## 1, x4 ## 1; \ |
| 518 | vpslld $(32 - 3), x2 ## 1, x2 ## 1; \ |
| 519 | vpor x4 ## 1, x2 ## 1, x2 ## 1; \ |
| 520 | vpsrld $13, x0 ## 2, x4 ## 2; \ |
| 521 | vpslld $(32 - 13), x0 ## 2, x0 ## 2; \ |
| 522 | vpor x4 ## 2, x0 ## 2, x0 ## 2; \ |
| 523 | vpxor x2 ## 2, x1 ## 2, x1 ## 2; \ |
| 524 | vpxor x2 ## 2, x3 ## 2, x3 ## 2; \ |
| 525 | vpsrld $3, x2 ## 2, x4 ## 2; \ |
| 526 | vpslld $(32 - 3), x2 ## 2, x2 ## 2; \ |
| 527 | vpor x4 ## 2, x2 ## 2, x2 ## 2; |
| 528 | |
| 529 | #define S(SBOX, x0, x1, x2, x3, x4) \ |
| 530 | SBOX ## _1(x0 ## 1, x1 ## 1, x2 ## 1, x3 ## 1, x4 ## 1); \ |
| 531 | SBOX ## _2(x0 ## 1, x1 ## 1, x2 ## 1, x3 ## 1, x4 ## 1); \ |
| 532 | SBOX ## _1(x0 ## 2, x1 ## 2, x2 ## 2, x3 ## 2, x4 ## 2); \ |
| 533 | SBOX ## _2(x0 ## 2, x1 ## 2, x2 ## 2, x3 ## 2, x4 ## 2); |
| 534 | |
| 535 | #define SP(SBOX, x0, x1, x2, x3, x4, i) \ |
| 536 | get_key(i, 0, RK0); \ |
| 537 | SBOX ## _1(x0 ## 1, x1 ## 1, x2 ## 1, x3 ## 1, x4 ## 1); \ |
| 538 | get_key(i, 2, RK2); \ |
| 539 | SBOX ## _2(x0 ## 1, x1 ## 1, x2 ## 1, x3 ## 1, x4 ## 1); \ |
| 540 | get_key(i, 3, RK3); \ |
| 541 | SBOX ## _1(x0 ## 2, x1 ## 2, x2 ## 2, x3 ## 2, x4 ## 2); \ |
| 542 | get_key(i, 1, RK1); \ |
| 543 | SBOX ## _2(x0 ## 2, x1 ## 2, x2 ## 2, x3 ## 2, x4 ## 2); \ |
| 544 | |
| 545 | #define transpose_4x4(x0, x1, x2, x3, t0, t1, t2) \ |
| 546 | vpunpckldq x1, x0, t0; \ |
| 547 | vpunpckhdq x1, x0, t2; \ |
| 548 | vpunpckldq x3, x2, t1; \ |
| 549 | vpunpckhdq x3, x2, x3; \ |
| 550 | \ |
| 551 | vpunpcklqdq t1, t0, x0; \ |
| 552 | vpunpckhqdq t1, t0, x1; \ |
| 553 | vpunpcklqdq x3, t2, x2; \ |
| 554 | vpunpckhqdq x3, t2, x3; |
| 555 | |
| 556 | #define read_blocks(x0, x1, x2, x3, t0, t1, t2) \ |
| 557 | transpose_4x4(x0, x1, x2, x3, t0, t1, t2) |
| 558 | |
| 559 | #define write_blocks(x0, x1, x2, x3, t0, t1, t2) \ |
| 560 | transpose_4x4(x0, x1, x2, x3, t0, t1, t2) |
| 561 | |
| 562 | .align 8 |
| 563 | __serpent_enc_blk16: |
| 564 | /* input: |
| 565 | * %rdi: ctx, CTX |
| 566 | * RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: plaintext |
| 567 | * output: |
| 568 | * RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: ciphertext |
| 569 | */ |
| 570 | |
| 571 | vpcmpeqd RNOT, RNOT, RNOT; |
| 572 | |
| 573 | read_blocks(RA1, RB1, RC1, RD1, RK0, RK1, RK2); |
| 574 | read_blocks(RA2, RB2, RC2, RD2, RK0, RK1, RK2); |
| 575 | |
| 576 | K2(RA, RB, RC, RD, RE, 0); |
| 577 | S(S0, RA, RB, RC, RD, RE); LK2(RC, RB, RD, RA, RE, 1); |
| 578 | S(S1, RC, RB, RD, RA, RE); LK2(RE, RD, RA, RC, RB, 2); |
| 579 | S(S2, RE, RD, RA, RC, RB); LK2(RB, RD, RE, RC, RA, 3); |
| 580 | S(S3, RB, RD, RE, RC, RA); LK2(RC, RA, RD, RB, RE, 4); |
| 581 | S(S4, RC, RA, RD, RB, RE); LK2(RA, RD, RB, RE, RC, 5); |
| 582 | S(S5, RA, RD, RB, RE, RC); LK2(RC, RA, RD, RE, RB, 6); |
| 583 | S(S6, RC, RA, RD, RE, RB); LK2(RD, RB, RA, RE, RC, 7); |
| 584 | S(S7, RD, RB, RA, RE, RC); LK2(RC, RA, RE, RD, RB, 8); |
| 585 | S(S0, RC, RA, RE, RD, RB); LK2(RE, RA, RD, RC, RB, 9); |
| 586 | S(S1, RE, RA, RD, RC, RB); LK2(RB, RD, RC, RE, RA, 10); |
| 587 | S(S2, RB, RD, RC, RE, RA); LK2(RA, RD, RB, RE, RC, 11); |
| 588 | S(S3, RA, RD, RB, RE, RC); LK2(RE, RC, RD, RA, RB, 12); |
| 589 | S(S4, RE, RC, RD, RA, RB); LK2(RC, RD, RA, RB, RE, 13); |
| 590 | S(S5, RC, RD, RA, RB, RE); LK2(RE, RC, RD, RB, RA, 14); |
| 591 | S(S6, RE, RC, RD, RB, RA); LK2(RD, RA, RC, RB, RE, 15); |
| 592 | S(S7, RD, RA, RC, RB, RE); LK2(RE, RC, RB, RD, RA, 16); |
| 593 | S(S0, RE, RC, RB, RD, RA); LK2(RB, RC, RD, RE, RA, 17); |
| 594 | S(S1, RB, RC, RD, RE, RA); LK2(RA, RD, RE, RB, RC, 18); |
| 595 | S(S2, RA, RD, RE, RB, RC); LK2(RC, RD, RA, RB, RE, 19); |
| 596 | S(S3, RC, RD, RA, RB, RE); LK2(RB, RE, RD, RC, RA, 20); |
| 597 | S(S4, RB, RE, RD, RC, RA); LK2(RE, RD, RC, RA, RB, 21); |
| 598 | S(S5, RE, RD, RC, RA, RB); LK2(RB, RE, RD, RA, RC, 22); |
| 599 | S(S6, RB, RE, RD, RA, RC); LK2(RD, RC, RE, RA, RB, 23); |
| 600 | S(S7, RD, RC, RE, RA, RB); LK2(RB, RE, RA, RD, RC, 24); |
| 601 | S(S0, RB, RE, RA, RD, RC); LK2(RA, RE, RD, RB, RC, 25); |
| 602 | S(S1, RA, RE, RD, RB, RC); LK2(RC, RD, RB, RA, RE, 26); |
| 603 | S(S2, RC, RD, RB, RA, RE); LK2(RE, RD, RC, RA, RB, 27); |
| 604 | S(S3, RE, RD, RC, RA, RB); LK2(RA, RB, RD, RE, RC, 28); |
| 605 | S(S4, RA, RB, RD, RE, RC); LK2(RB, RD, RE, RC, RA, 29); |
| 606 | S(S5, RB, RD, RE, RC, RA); LK2(RA, RB, RD, RC, RE, 30); |
| 607 | S(S6, RA, RB, RD, RC, RE); LK2(RD, RE, RB, RC, RA, 31); |
| 608 | S(S7, RD, RE, RB, RC, RA); K2(RA, RB, RC, RD, RE, 32); |
| 609 | |
| 610 | write_blocks(RA1, RB1, RC1, RD1, RK0, RK1, RK2); |
| 611 | write_blocks(RA2, RB2, RC2, RD2, RK0, RK1, RK2); |
| 612 | |
| 613 | ret; |
| 614 | ENDPROC(__serpent_enc_blk16) |
| 615 | |
| 616 | .align 8 |
| 617 | __serpent_dec_blk16: |
| 618 | /* input: |
| 619 | * %rdi: ctx, CTX |
| 620 | * RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: ciphertext |
| 621 | * output: |
| 622 | * RC1, RD1, RB1, RE1, RC2, RD2, RB2, RE2: plaintext |
| 623 | */ |
| 624 | |
| 625 | vpcmpeqd RNOT, RNOT, RNOT; |
| 626 | |
| 627 | read_blocks(RA1, RB1, RC1, RD1, RK0, RK1, RK2); |
| 628 | read_blocks(RA2, RB2, RC2, RD2, RK0, RK1, RK2); |
| 629 | |
| 630 | K2(RA, RB, RC, RD, RE, 32); |
| 631 | SP(SI7, RA, RB, RC, RD, RE, 31); KL2(RB, RD, RA, RE, RC, 31); |
| 632 | SP(SI6, RB, RD, RA, RE, RC, 30); KL2(RA, RC, RE, RB, RD, 30); |
| 633 | SP(SI5, RA, RC, RE, RB, RD, 29); KL2(RC, RD, RA, RE, RB, 29); |
| 634 | SP(SI4, RC, RD, RA, RE, RB, 28); KL2(RC, RA, RB, RE, RD, 28); |
| 635 | SP(SI3, RC, RA, RB, RE, RD, 27); KL2(RB, RC, RD, RE, RA, 27); |
| 636 | SP(SI2, RB, RC, RD, RE, RA, 26); KL2(RC, RA, RE, RD, RB, 26); |
| 637 | SP(SI1, RC, RA, RE, RD, RB, 25); KL2(RB, RA, RE, RD, RC, 25); |
| 638 | SP(SI0, RB, RA, RE, RD, RC, 24); KL2(RE, RC, RA, RB, RD, 24); |
| 639 | SP(SI7, RE, RC, RA, RB, RD, 23); KL2(RC, RB, RE, RD, RA, 23); |
| 640 | SP(SI6, RC, RB, RE, RD, RA, 22); KL2(RE, RA, RD, RC, RB, 22); |
| 641 | SP(SI5, RE, RA, RD, RC, RB, 21); KL2(RA, RB, RE, RD, RC, 21); |
| 642 | SP(SI4, RA, RB, RE, RD, RC, 20); KL2(RA, RE, RC, RD, RB, 20); |
| 643 | SP(SI3, RA, RE, RC, RD, RB, 19); KL2(RC, RA, RB, RD, RE, 19); |
| 644 | SP(SI2, RC, RA, RB, RD, RE, 18); KL2(RA, RE, RD, RB, RC, 18); |
| 645 | SP(SI1, RA, RE, RD, RB, RC, 17); KL2(RC, RE, RD, RB, RA, 17); |
| 646 | SP(SI0, RC, RE, RD, RB, RA, 16); KL2(RD, RA, RE, RC, RB, 16); |
| 647 | SP(SI7, RD, RA, RE, RC, RB, 15); KL2(RA, RC, RD, RB, RE, 15); |
| 648 | SP(SI6, RA, RC, RD, RB, RE, 14); KL2(RD, RE, RB, RA, RC, 14); |
| 649 | SP(SI5, RD, RE, RB, RA, RC, 13); KL2(RE, RC, RD, RB, RA, 13); |
| 650 | SP(SI4, RE, RC, RD, RB, RA, 12); KL2(RE, RD, RA, RB, RC, 12); |
| 651 | SP(SI3, RE, RD, RA, RB, RC, 11); KL2(RA, RE, RC, RB, RD, 11); |
| 652 | SP(SI2, RA, RE, RC, RB, RD, 10); KL2(RE, RD, RB, RC, RA, 10); |
| 653 | SP(SI1, RE, RD, RB, RC, RA, 9); KL2(RA, RD, RB, RC, RE, 9); |
| 654 | SP(SI0, RA, RD, RB, RC, RE, 8); KL2(RB, RE, RD, RA, RC, 8); |
| 655 | SP(SI7, RB, RE, RD, RA, RC, 7); KL2(RE, RA, RB, RC, RD, 7); |
| 656 | SP(SI6, RE, RA, RB, RC, RD, 6); KL2(RB, RD, RC, RE, RA, 6); |
| 657 | SP(SI5, RB, RD, RC, RE, RA, 5); KL2(RD, RA, RB, RC, RE, 5); |
| 658 | SP(SI4, RD, RA, RB, RC, RE, 4); KL2(RD, RB, RE, RC, RA, 4); |
| 659 | SP(SI3, RD, RB, RE, RC, RA, 3); KL2(RE, RD, RA, RC, RB, 3); |
| 660 | SP(SI2, RE, RD, RA, RC, RB, 2); KL2(RD, RB, RC, RA, RE, 2); |
| 661 | SP(SI1, RD, RB, RC, RA, RE, 1); KL2(RE, RB, RC, RA, RD, 1); |
| 662 | S(SI0, RE, RB, RC, RA, RD); K2(RC, RD, RB, RE, RA, 0); |
| 663 | |
| 664 | write_blocks(RC1, RD1, RB1, RE1, RK0, RK1, RK2); |
| 665 | write_blocks(RC2, RD2, RB2, RE2, RK0, RK1, RK2); |
| 666 | |
| 667 | ret; |
| 668 | ENDPROC(__serpent_dec_blk16) |
| 669 | |
| 670 | ENTRY(serpent_ecb_enc_16way) |
| 671 | /* input: |
| 672 | * %rdi: ctx, CTX |
| 673 | * %rsi: dst |
| 674 | * %rdx: src |
| 675 | */ |
| 676 | |
| 677 | vzeroupper; |
| 678 | |
| 679 | load_16way(%rdx, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2); |
| 680 | |
| 681 | call __serpent_enc_blk16; |
| 682 | |
| 683 | store_16way(%rsi, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2); |
| 684 | |
| 685 | vzeroupper; |
| 686 | |
| 687 | ret; |
| 688 | ENDPROC(serpent_ecb_enc_16way) |
| 689 | |
| 690 | ENTRY(serpent_ecb_dec_16way) |
| 691 | /* input: |
| 692 | * %rdi: ctx, CTX |
| 693 | * %rsi: dst |
| 694 | * %rdx: src |
| 695 | */ |
| 696 | |
| 697 | vzeroupper; |
| 698 | |
| 699 | load_16way(%rdx, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2); |
| 700 | |
| 701 | call __serpent_dec_blk16; |
| 702 | |
| 703 | store_16way(%rsi, RC1, RD1, RB1, RE1, RC2, RD2, RB2, RE2); |
| 704 | |
| 705 | vzeroupper; |
| 706 | |
| 707 | ret; |
| 708 | ENDPROC(serpent_ecb_dec_16way) |
| 709 | |
| 710 | ENTRY(serpent_cbc_dec_16way) |
| 711 | /* input: |
| 712 | * %rdi: ctx, CTX |
| 713 | * %rsi: dst |
| 714 | * %rdx: src |
| 715 | */ |
| 716 | |
| 717 | vzeroupper; |
| 718 | |
| 719 | load_16way(%rdx, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2); |
| 720 | |
| 721 | call __serpent_dec_blk16; |
| 722 | |
| 723 | store_cbc_16way(%rdx, %rsi, RC1, RD1, RB1, RE1, RC2, RD2, RB2, RE2, |
| 724 | RK0); |
| 725 | |
| 726 | vzeroupper; |
| 727 | |
| 728 | ret; |
| 729 | ENDPROC(serpent_cbc_dec_16way) |
| 730 | |
| 731 | ENTRY(serpent_ctr_16way) |
| 732 | /* input: |
| 733 | * %rdi: ctx, CTX |
| 734 | * %rsi: dst (16 blocks) |
| 735 | * %rdx: src (16 blocks) |
| 736 | * %rcx: iv (little endian, 128bit) |
| 737 | */ |
| 738 | |
| 739 | vzeroupper; |
| 740 | |
| 741 | load_ctr_16way(%rcx, .Lbswap128_mask, RA1, RB1, RC1, RD1, RA2, RB2, RC2, |
| 742 | RD2, RK0, RK0x, RK1, RK1x, RK2, RK2x, RK3, RK3x, RNOT, |
| 743 | tp); |
| 744 | |
| 745 | call __serpent_enc_blk16; |
| 746 | |
| 747 | store_ctr_16way(%rdx, %rsi, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2); |
| 748 | |
| 749 | vzeroupper; |
| 750 | |
| 751 | ret; |
| 752 | ENDPROC(serpent_ctr_16way) |
| 753 | |
| 754 | ENTRY(serpent_xts_enc_16way) |
| 755 | /* input: |
| 756 | * %rdi: ctx, CTX |
| 757 | * %rsi: dst (16 blocks) |
| 758 | * %rdx: src (16 blocks) |
| 759 | * %rcx: iv (t ⊕ αⁿ ∈ GF(2¹²⁸)) |
| 760 | */ |
| 761 | |
| 762 | vzeroupper; |
| 763 | |
| 764 | load_xts_16way(%rcx, %rdx, %rsi, RA1, RB1, RC1, RD1, RA2, RB2, RC2, |
| 765 | RD2, RK0, RK0x, RK1, RK1x, RK2, RK2x, RK3, RK3x, RNOT, |
| 766 | .Lxts_gf128mul_and_shl1_mask_0, |
| 767 | .Lxts_gf128mul_and_shl1_mask_1); |
| 768 | |
| 769 | call __serpent_enc_blk16; |
| 770 | |
| 771 | store_xts_16way(%rsi, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2); |
| 772 | |
| 773 | vzeroupper; |
| 774 | |
| 775 | ret; |
| 776 | ENDPROC(serpent_xts_enc_16way) |
| 777 | |
| 778 | ENTRY(serpent_xts_dec_16way) |
| 779 | /* input: |
| 780 | * %rdi: ctx, CTX |
| 781 | * %rsi: dst (16 blocks) |
| 782 | * %rdx: src (16 blocks) |
| 783 | * %rcx: iv (t ⊕ αⁿ ∈ GF(2¹²⁸)) |
| 784 | */ |
| 785 | |
| 786 | vzeroupper; |
| 787 | |
| 788 | load_xts_16way(%rcx, %rdx, %rsi, RA1, RB1, RC1, RD1, RA2, RB2, RC2, |
| 789 | RD2, RK0, RK0x, RK1, RK1x, RK2, RK2x, RK3, RK3x, RNOT, |
| 790 | .Lxts_gf128mul_and_shl1_mask_0, |
| 791 | .Lxts_gf128mul_and_shl1_mask_1); |
| 792 | |
| 793 | call __serpent_dec_blk16; |
| 794 | |
| 795 | store_xts_16way(%rsi, RC1, RD1, RB1, RE1, RC2, RD2, RB2, RE2); |
| 796 | |
| 797 | vzeroupper; |
| 798 | |
| 799 | ret; |
| 800 | ENDPROC(serpent_xts_dec_16way) |