1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright (C) 2019 Romain Dolbeau. All rights reserved. 23 * <romain.dolbeau@european-processor-initiative.eu> 24 */ 25 26 #include <sys/types.h> 27 #include <sys/simd.h> 28 29 #ifdef __linux__ 30 #define __asm __asm__ __volatile__ 31 #endif 32 33 #define _REG_CNT(_0, _1, _2, _3, _4, _5, _6, _7, N, ...) N 34 #define REG_CNT(r...) _REG_CNT(r, 8, 7, 6, 5, 4, 3, 2, 1) 35 36 #define VR0_(REG, ...) "%[w"#REG"]" 37 #define VR1_(_1, REG, ...) "%[w"#REG"]" 38 #define VR2_(_1, _2, REG, ...) "%[w"#REG"]" 39 #define VR3_(_1, _2, _3, REG, ...) "%[w"#REG"]" 40 #define VR4_(_1, _2, _3, _4, REG, ...) "%[w"#REG"]" 41 #define VR5_(_1, _2, _3, _4, _5, REG, ...) "%[w"#REG"]" 42 #define VR6_(_1, _2, _3, _4, _5, _6, REG, ...) "%[w"#REG"]" 43 #define VR7_(_1, _2, _3, _4, _5, _6, _7, REG, ...) "%[w"#REG"]" 44 45 /* 46 * Here we need registers not used otherwise. 47 * They will be used in unused ASM for the case 48 * with more registers than required... but GCC 49 * will still need to make sure the constraints 50 * are correct, and duplicate constraints are illegal 51 * ... and we use the "register" number as a name 52 */ 53 54 #define VR0(r...) VR0_(r) 55 #define VR1(r...) VR1_(r) 56 #define VR2(r...) VR2_(r, 36) 57 #define VR3(r...) VR3_(r, 36, 35) 58 #define VR4(r...) VR4_(r, 36, 35, 34, 33) 59 #define VR5(r...) VR5_(r, 36, 35, 34, 33, 32) 60 #define VR6(r...) VR6_(r, 36, 35, 34, 33, 32, 31) 61 #define VR7(r...) VR7_(r, 36, 35, 34, 33, 32, 31, 30) 62 63 #define VR(X) "%[w"#X"]" 64 65 #define RVR0_(REG, ...) [w##REG] "v" (w##REG) 66 #define RVR1_(_1, REG, ...) [w##REG] "v" (w##REG) 67 #define RVR2_(_1, _2, REG, ...) [w##REG] "v" (w##REG) 68 #define RVR3_(_1, _2, _3, REG, ...) [w##REG] "v" (w##REG) 69 #define RVR4_(_1, _2, _3, _4, REG, ...) [w##REG] "v" (w##REG) 70 #define RVR5_(_1, _2, _3, _4, _5, REG, ...) [w##REG] "v" (w##REG) 71 #define RVR6_(_1, _2, _3, _4, _5, _6, REG, ...) [w##REG] "v" (w##REG) 72 #define RVR7_(_1, _2, _3, _4, _5, _6, _7, REG, ...) [w##REG] "v" (w##REG) 73 74 #define RVR0(r...) RVR0_(r) 75 #define RVR1(r...) RVR1_(r) 76 #define RVR2(r...) RVR2_(r, 36) 77 #define RVR3(r...) RVR3_(r, 36, 35) 78 #define RVR4(r...) RVR4_(r, 36, 35, 34, 33) 79 #define RVR5(r...) RVR5_(r, 36, 35, 34, 33, 32) 80 #define RVR6(r...) RVR6_(r, 36, 35, 34, 33, 32, 31) 81 #define RVR7(r...) RVR7_(r, 36, 35, 34, 33, 32, 31, 30) 82 83 #define RVR(X) [w##X] "v" (w##X) 84 85 #define WVR0_(REG, ...) [w##REG] "=v" (w##REG) 86 #define WVR1_(_1, REG, ...) [w##REG] "=v" (w##REG) 87 #define WVR2_(_1, _2, REG, ...) [w##REG] "=v" (w##REG) 88 #define WVR3_(_1, _2, _3, REG, ...) [w##REG] "=v" (w##REG) 89 #define WVR4_(_1, _2, _3, _4, REG, ...) [w##REG] "=v" (w##REG) 90 #define WVR5_(_1, _2, _3, _4, _5, REG, ...) [w##REG] "=v" (w##REG) 91 #define WVR6_(_1, _2, _3, _4, _5, _6, REG, ...) [w##REG] "=v" (w##REG) 92 #define WVR7_(_1, _2, _3, _4, _5, _6, _7, REG, ...) [w##REG] "=v" (w##REG) 93 94 #define WVR0(r...) WVR0_(r) 95 #define WVR1(r...) WVR1_(r) 96 #define WVR2(r...) WVR2_(r, 36) 97 #define WVR3(r...) WVR3_(r, 36, 35) 98 #define WVR4(r...) WVR4_(r, 36, 35, 34, 33) 99 #define WVR5(r...) WVR5_(r, 36, 35, 34, 33, 32) 100 #define WVR6(r...) WVR6_(r, 36, 35, 34, 33, 32, 31) 101 #define WVR7(r...) WVR7_(r, 36, 35, 34, 33, 32, 31, 30) 102 103 #define WVR(X) [w##X] "=v" (w##X) 104 105 #define UVR0_(REG, ...) [w##REG] "+&v" (w##REG) 106 #define UVR1_(_1, REG, ...) [w##REG] "+&v" (w##REG) 107 #define UVR2_(_1, _2, REG, ...) [w##REG] "+&v" (w##REG) 108 #define UVR3_(_1, _2, _3, REG, ...) [w##REG] "+&v" (w##REG) 109 #define UVR4_(_1, _2, _3, _4, REG, ...) [w##REG] "+&v" (w##REG) 110 #define UVR5_(_1, _2, _3, _4, _5, REG, ...) [w##REG] "+&v" (w##REG) 111 #define UVR6_(_1, _2, _3, _4, _5, _6, REG, ...) [w##REG] "+&v" (w##REG) 112 #define UVR7_(_1, _2, _3, _4, _5, _6, _7, REG, ...) [w##REG] "+&v" (w##REG) 113 114 #define UVR0(r...) UVR0_(r) 115 #define UVR1(r...) UVR1_(r) 116 #define UVR2(r...) UVR2_(r, 36) 117 #define UVR3(r...) UVR3_(r, 36, 35) 118 #define UVR4(r...) UVR4_(r, 36, 35, 34, 33) 119 #define UVR5(r...) UVR5_(r, 36, 35, 34, 33, 32) 120 #define UVR6(r...) UVR6_(r, 36, 35, 34, 33, 32, 31) 121 #define UVR7(r...) UVR7_(r, 36, 35, 34, 33, 32, 31, 30) 122 123 #define UVR(X) [w##X] "+&v" (w##X) 124 125 #define R_01(REG1, REG2, ...) REG1, REG2 126 #define _R_23(_0, _1, REG2, REG3, ...) REG2, REG3 127 #define R_23(REG...) _R_23(REG, 1, 2, 3) 128 129 #define ZFS_ASM_BUG() ASSERT(0) 130 131 #define OFFSET(ptr, val) (((unsigned char *)(ptr))+val) 132 133 extern const uint8_t gf_clmul_mod_lt[4*256][16]; 134 135 #define ELEM_SIZE 16 136 137 typedef struct v { 138 uint8_t b[ELEM_SIZE] __attribute__((aligned(ELEM_SIZE))); 139 } v_t; 140 141 #define XOR_ACC(src, r...) \ 142 { \ 143 switch (REG_CNT(r)) { \ 144 case 8: \ 145 __asm( \ 146 "lvx 21,0,%[SRC0]\n" \ 147 "lvx 20,0,%[SRC1]\n" \ 148 "lvx 19,0,%[SRC2]\n" \ 149 "lvx 18,0,%[SRC3]\n" \ 150 "vxor " VR0(r) "," VR0(r) ",21\n" \ 151 "vxor " VR1(r) "," VR1(r) ",20\n" \ 152 "vxor " VR2(r) "," VR2(r) ",19\n" \ 153 "vxor " VR3(r) "," VR3(r) ",18\n" \ 154 "lvx 21,0,%[SRC4]\n" \ 155 "lvx 20,0,%[SRC5]\n" \ 156 "lvx 19,0,%[SRC6]\n" \ 157 "lvx 18,0,%[SRC7]\n" \ 158 "vxor " VR4(r) "," VR4(r) ",21\n" \ 159 "vxor " VR5(r) "," VR5(r) ",20\n" \ 160 "vxor " VR6(r) "," VR6(r) ",19\n" \ 161 "vxor " VR7(r) "," VR7(r) ",18\n" \ 162 : UVR0(r), UVR1(r), UVR2(r), UVR3(r), \ 163 UVR4(r), UVR5(r), UVR6(r), UVR7(r) \ 164 : [SRC0] "r" ((OFFSET(src, 0))), \ 165 [SRC1] "r" ((OFFSET(src, 16))), \ 166 [SRC2] "r" ((OFFSET(src, 32))), \ 167 [SRC3] "r" ((OFFSET(src, 48))), \ 168 [SRC4] "r" ((OFFSET(src, 64))), \ 169 [SRC5] "r" ((OFFSET(src, 80))), \ 170 [SRC6] "r" ((OFFSET(src, 96))), \ 171 [SRC7] "r" ((OFFSET(src, 112))) \ 172 : "v18", "v19", "v20", "v21"); \ 173 break; \ 174 case 4: \ 175 __asm( \ 176 "lvx 21,0,%[SRC0]\n" \ 177 "lvx 20,0,%[SRC1]\n" \ 178 "lvx 19,0,%[SRC2]\n" \ 179 "lvx 18,0,%[SRC3]\n" \ 180 "vxor " VR0(r) "," VR0(r) ",21\n" \ 181 "vxor " VR1(r) "," VR1(r) ",20\n" \ 182 "vxor " VR2(r) "," VR2(r) ",19\n" \ 183 "vxor " VR3(r) "," VR3(r) ",18\n" \ 184 : UVR0(r), UVR1(r), UVR2(r), UVR3(r) \ 185 : [SRC0] "r" ((OFFSET(src, 0))), \ 186 [SRC1] "r" ((OFFSET(src, 16))), \ 187 [SRC2] "r" ((OFFSET(src, 32))), \ 188 [SRC3] "r" ((OFFSET(src, 48))) \ 189 : "v18", "v19", "v20", "v21"); \ 190 break; \ 191 case 2: \ 192 __asm( \ 193 "lvx 21,0,%[SRC0]\n" \ 194 "lvx 20,0,%[SRC1]\n" \ 195 "vxor " VR0(r) "," VR0(r) ",21\n" \ 196 "vxor " VR1(r) "," VR1(r) ",20\n" \ 197 : UVR0(r), UVR1(r) \ 198 : [SRC0] "r" ((OFFSET(src, 0))), \ 199 [SRC1] "r" ((OFFSET(src, 16))) \ 200 : "v20", "v21"); \ 201 break; \ 202 default: \ 203 ZFS_ASM_BUG(); \ 204 } \ 205 } 206 207 #define XOR(r...) \ 208 { \ 209 switch (REG_CNT(r)) { \ 210 case 8: \ 211 __asm( \ 212 "vxor " VR4(r) "," VR4(r) "," VR0(r) "\n" \ 213 "vxor " VR5(r) "," VR5(r) "," VR1(r) "\n" \ 214 "vxor " VR6(r) "," VR6(r) "," VR2(r) "\n" \ 215 "vxor " VR7(r) "," VR7(r) "," VR3(r) "\n" \ 216 : UVR4(r), UVR5(r), UVR6(r), UVR7(r) \ 217 : RVR0(r), RVR1(r), RVR2(r), RVR3(r)); \ 218 break; \ 219 case 4: \ 220 __asm( \ 221 "vxor " VR2(r) "," VR2(r) "," VR0(r) "\n" \ 222 "vxor " VR3(r) "," VR3(r) "," VR1(r) "\n" \ 223 : UVR2(r), UVR3(r) \ 224 : RVR0(r), RVR1(r)); \ 225 break; \ 226 default: \ 227 ZFS_ASM_BUG(); \ 228 } \ 229 } 230 231 #define ZERO(r...) \ 232 { \ 233 switch (REG_CNT(r)) { \ 234 case 8: \ 235 __asm( \ 236 "vxor " VR0(r) "," VR0(r) "," VR0(r) "\n" \ 237 "vxor " VR1(r) "," VR1(r) "," VR1(r) "\n" \ 238 "vxor " VR2(r) "," VR2(r) "," VR2(r) "\n" \ 239 "vxor " VR3(r) "," VR3(r) "," VR3(r) "\n" \ 240 "vxor " VR4(r) "," VR4(r) "," VR4(r) "\n" \ 241 "vxor " VR5(r) "," VR5(r) "," VR5(r) "\n" \ 242 "vxor " VR6(r) "," VR6(r) "," VR6(r) "\n" \ 243 "vxor " VR7(r) "," VR7(r) "," VR7(r) "\n" \ 244 : WVR0(r), WVR1(r), WVR2(r), WVR3(r), \ 245 WVR4(r), WVR5(r), WVR6(r), WVR7(r)); \ 246 break; \ 247 case 4: \ 248 __asm( \ 249 "vxor " VR0(r) "," VR0(r) "," VR0(r) "\n" \ 250 "vxor " VR1(r) "," VR1(r) "," VR1(r) "\n" \ 251 "vxor " VR2(r) "," VR2(r) "," VR2(r) "\n" \ 252 "vxor " VR3(r) "," VR3(r) "," VR3(r) "\n" \ 253 : WVR0(r), WVR1(r), WVR2(r), WVR3(r)); \ 254 break; \ 255 case 2: \ 256 __asm( \ 257 "vxor " VR0(r) "," VR0(r) "," VR0(r) "\n" \ 258 "vxor " VR1(r) "," VR1(r) "," VR1(r) "\n" \ 259 : WVR0(r), WVR1(r)); \ 260 break; \ 261 default: \ 262 ZFS_ASM_BUG(); \ 263 } \ 264 } 265 266 #define COPY(r...) \ 267 { \ 268 switch (REG_CNT(r)) { \ 269 case 8: \ 270 __asm( \ 271 "vor " VR4(r) "," VR0(r) "," VR0(r) "\n" \ 272 "vor " VR5(r) "," VR1(r) "," VR1(r) "\n" \ 273 "vor " VR6(r) "," VR2(r) "," VR2(r) "\n" \ 274 "vor " VR7(r) "," VR3(r) "," VR3(r) "\n" \ 275 : WVR4(r), WVR5(r), WVR6(r), WVR7(r) \ 276 : RVR0(r), RVR1(r), RVR2(r), RVR3(r)); \ 277 break; \ 278 case 4: \ 279 __asm( \ 280 "vor " VR2(r) "," VR0(r) "," VR0(r) "\n" \ 281 "vor " VR3(r) "," VR1(r) "," VR1(r) "\n" \ 282 : WVR2(r), WVR3(r) \ 283 : RVR0(r), RVR1(r)); \ 284 break; \ 285 default: \ 286 ZFS_ASM_BUG(); \ 287 } \ 288 } 289 290 #define LOAD(src, r...) \ 291 { \ 292 switch (REG_CNT(r)) { \ 293 case 8: \ 294 __asm( \ 295 "lvx " VR0(r) " ,0,%[SRC0]\n" \ 296 "lvx " VR1(r) " ,0,%[SRC1]\n" \ 297 "lvx " VR2(r) " ,0,%[SRC2]\n" \ 298 "lvx " VR3(r) " ,0,%[SRC3]\n" \ 299 "lvx " VR4(r) " ,0,%[SRC4]\n" \ 300 "lvx " VR5(r) " ,0,%[SRC5]\n" \ 301 "lvx " VR6(r) " ,0,%[SRC6]\n" \ 302 "lvx " VR7(r) " ,0,%[SRC7]\n" \ 303 : WVR0(r), WVR1(r), WVR2(r), WVR3(r), \ 304 WVR4(r), WVR5(r), WVR6(r), WVR7(r) \ 305 : [SRC0] "r" ((OFFSET(src, 0))), \ 306 [SRC1] "r" ((OFFSET(src, 16))), \ 307 [SRC2] "r" ((OFFSET(src, 32))), \ 308 [SRC3] "r" ((OFFSET(src, 48))), \ 309 [SRC4] "r" ((OFFSET(src, 64))), \ 310 [SRC5] "r" ((OFFSET(src, 80))), \ 311 [SRC6] "r" ((OFFSET(src, 96))), \ 312 [SRC7] "r" ((OFFSET(src, 112)))); \ 313 break; \ 314 case 4: \ 315 __asm( \ 316 "lvx " VR0(r) " ,0,%[SRC0]\n" \ 317 "lvx " VR1(r) " ,0,%[SRC1]\n" \ 318 "lvx " VR2(r) " ,0,%[SRC2]\n" \ 319 "lvx " VR3(r) " ,0,%[SRC3]\n" \ 320 : WVR0(r), WVR1(r), WVR2(r), WVR3(r) \ 321 : [SRC0] "r" ((OFFSET(src, 0))), \ 322 [SRC1] "r" ((OFFSET(src, 16))), \ 323 [SRC2] "r" ((OFFSET(src, 32))), \ 324 [SRC3] "r" ((OFFSET(src, 48)))); \ 325 break; \ 326 case 2: \ 327 __asm( \ 328 "lvx " VR0(r) " ,0,%[SRC0]\n" \ 329 "lvx " VR1(r) " ,0,%[SRC1]\n" \ 330 : WVR0(r), WVR1(r) \ 331 : [SRC0] "r" ((OFFSET(src, 0))), \ 332 [SRC1] "r" ((OFFSET(src, 16)))); \ 333 break; \ 334 default: \ 335 ZFS_ASM_BUG(); \ 336 } \ 337 } 338 339 #define STORE(dst, r...) \ 340 { \ 341 switch (REG_CNT(r)) { \ 342 case 8: \ 343 __asm( \ 344 "stvx " VR0(r) " ,0,%[DST0]\n" \ 345 "stvx " VR1(r) " ,0,%[DST1]\n" \ 346 "stvx " VR2(r) " ,0,%[DST2]\n" \ 347 "stvx " VR3(r) " ,0,%[DST3]\n" \ 348 "stvx " VR4(r) " ,0,%[DST4]\n" \ 349 "stvx " VR5(r) " ,0,%[DST5]\n" \ 350 "stvx " VR6(r) " ,0,%[DST6]\n" \ 351 "stvx " VR7(r) " ,0,%[DST7]\n" \ 352 : : [DST0] "r" ((OFFSET(dst, 0))), \ 353 [DST1] "r" ((OFFSET(dst, 16))), \ 354 [DST2] "r" ((OFFSET(dst, 32))), \ 355 [DST3] "r" ((OFFSET(dst, 48))), \ 356 [DST4] "r" ((OFFSET(dst, 64))), \ 357 [DST5] "r" ((OFFSET(dst, 80))), \ 358 [DST6] "r" ((OFFSET(dst, 96))), \ 359 [DST7] "r" ((OFFSET(dst, 112))), \ 360 RVR0(r), RVR1(r), RVR2(r), RVR3(r), \ 361 RVR4(r), RVR5(r), RVR6(r), RVR7(r) \ 362 : "memory"); \ 363 break; \ 364 case 4: \ 365 __asm( \ 366 "stvx " VR0(r) " ,0,%[DST0]\n" \ 367 "stvx " VR1(r) " ,0,%[DST1]\n" \ 368 "stvx " VR2(r) " ,0,%[DST2]\n" \ 369 "stvx " VR3(r) " ,0,%[DST3]\n" \ 370 : : [DST0] "r" ((OFFSET(dst, 0))), \ 371 [DST1] "r" ((OFFSET(dst, 16))), \ 372 [DST2] "r" ((OFFSET(dst, 32))), \ 373 [DST3] "r" ((OFFSET(dst, 48))), \ 374 RVR0(r), RVR1(r), RVR2(r), RVR3(r) \ 375 : "memory"); \ 376 break; \ 377 case 2: \ 378 __asm( \ 379 "stvx " VR0(r) " ,0,%[DST0]\n" \ 380 "stvx " VR1(r) " ,0,%[DST1]\n" \ 381 : : [DST0] "r" ((OFFSET(dst, 0))), \ 382 [DST1] "r" ((OFFSET(dst, 16))), \ 383 RVR0(r), RVR1(r) : "memory"); \ 384 break; \ 385 default: \ 386 ZFS_ASM_BUG(); \ 387 } \ 388 } 389 390 /* 391 * Unfortunately cannot use the macro, because GCC 392 * will try to use the macro name and not value 393 * later on... 394 * Kept as a reference to what a numbered variable is 395 */ 396 #define _00 "17" 397 #define _1d "16" 398 #define _temp0 "19" 399 #define _temp1 "18" 400 401 #define MUL2_SETUP() \ 402 { \ 403 __asm( \ 404 "vspltisb " VR(16) ",14\n" \ 405 "vspltisb " VR(17) ",15\n" \ 406 "vaddubm " VR(16) "," VR(17) "," VR(16) "\n" \ 407 "vxor " VR(17) "," VR(17) "," VR(17) "\n" \ 408 : WVR(16), WVR(17)); \ 409 } 410 411 #define MUL2(r...) \ 412 { \ 413 switch (REG_CNT(r)) { \ 414 case 4: \ 415 __asm( \ 416 "vcmpgtsb 19," VR(17) "," VR0(r) "\n" \ 417 "vcmpgtsb 18," VR(17) "," VR1(r) "\n" \ 418 "vcmpgtsb 21," VR(17) "," VR2(r) "\n" \ 419 "vcmpgtsb 20," VR(17) "," VR3(r) "\n" \ 420 "vand 19,19," VR(16) "\n" \ 421 "vand 18,18," VR(16) "\n" \ 422 "vand 21,21," VR(16) "\n" \ 423 "vand 20,20," VR(16) "\n" \ 424 "vaddubm " VR0(r) "," VR0(r) "," VR0(r) "\n" \ 425 "vaddubm " VR1(r) "," VR1(r) "," VR1(r) "\n" \ 426 "vaddubm " VR2(r) "," VR2(r) "," VR2(r) "\n" \ 427 "vaddubm " VR3(r) "," VR3(r) "," VR3(r) "\n" \ 428 "vxor " VR0(r) ",19," VR0(r) "\n" \ 429 "vxor " VR1(r) ",18," VR1(r) "\n" \ 430 "vxor " VR2(r) ",21," VR2(r) "\n" \ 431 "vxor " VR3(r) ",20," VR3(r) "\n" \ 432 : UVR0(r), UVR1(r), UVR2(r), UVR3(r) \ 433 : RVR(17), RVR(16) \ 434 : "v18", "v19", "v20", "v21"); \ 435 break; \ 436 case 2: \ 437 __asm( \ 438 "vcmpgtsb 19," VR(17) "," VR0(r) "\n" \ 439 "vcmpgtsb 18," VR(17) "," VR1(r) "\n" \ 440 "vand 19,19," VR(16) "\n" \ 441 "vand 18,18," VR(16) "\n" \ 442 "vaddubm " VR0(r) "," VR0(r) "," VR0(r) "\n" \ 443 "vaddubm " VR1(r) "," VR1(r) "," VR1(r) "\n" \ 444 "vxor " VR0(r) ",19," VR0(r) "\n" \ 445 "vxor " VR1(r) ",18," VR1(r) "\n" \ 446 : UVR0(r), UVR1(r) \ 447 : RVR(17), RVR(16) \ 448 : "v18", "v19"); \ 449 break; \ 450 default: \ 451 ZFS_ASM_BUG(); \ 452 } \ 453 } 454 455 #define MUL4(r...) \ 456 { \ 457 MUL2(r); \ 458 MUL2(r); \ 459 } 460 461 /* 462 * Unfortunately cannot use the macro, because GCC 463 * will try to use the macro name and not value 464 * later on... 465 * Kept as a reference to what a register is 466 * (here we're using actual registers for the 467 * clobbered ones) 468 */ 469 #define _0f "15" 470 #define _a_save "14" 471 #define _b_save "13" 472 #define _lt_mod_a "12" 473 #define _lt_clmul_a "11" 474 #define _lt_mod_b "10" 475 #define _lt_clmul_b "15" 476 477 #define _MULx2(c, r...) \ 478 { \ 479 switch (REG_CNT(r)) { \ 480 case 2: \ 481 __asm( \ 482 /* lts for upper part */ \ 483 "vspltisb 15,15\n" \ 484 "lvx 10,0,%[lt0]\n" \ 485 "lvx 11,0,%[lt1]\n" \ 486 /* upper part */ \ 487 "vand 14," VR0(r) ",15\n" \ 488 "vand 13," VR1(r) ",15\n" \ 489 "vspltisb 15,4\n" \ 490 "vsrab " VR0(r) "," VR0(r) ",15\n" \ 491 "vsrab " VR1(r) "," VR1(r) ",15\n" \ 492 \ 493 "vperm 12,10,10," VR0(r) "\n" \ 494 "vperm 10,10,10," VR1(r) "\n" \ 495 "vperm 15,11,11," VR0(r) "\n" \ 496 "vperm 11,11,11," VR1(r) "\n" \ 497 \ 498 "vxor " VR0(r) ",15,12\n" \ 499 "vxor " VR1(r) ",11,10\n" \ 500 /* lts for lower part */ \ 501 "lvx 10,0,%[lt2]\n" \ 502 "lvx 15,0,%[lt3]\n" \ 503 /* lower part */ \ 504 "vperm 12,10,10,14\n" \ 505 "vperm 10,10,10,13\n" \ 506 "vperm 11,15,15,14\n" \ 507 "vperm 15,15,15,13\n" \ 508 \ 509 "vxor " VR0(r) "," VR0(r) ",12\n" \ 510 "vxor " VR1(r) "," VR1(r) ",10\n" \ 511 "vxor " VR0(r) "," VR0(r) ",11\n" \ 512 "vxor " VR1(r) "," VR1(r) ",15\n" \ 513 : UVR0(r), UVR1(r) \ 514 : [lt0] "r" (&(gf_clmul_mod_lt[4*(c)+0][0])), \ 515 [lt1] "r" (&(gf_clmul_mod_lt[4*(c)+1][0])), \ 516 [lt2] "r" (&(gf_clmul_mod_lt[4*(c)+2][0])), \ 517 [lt3] "r" (&(gf_clmul_mod_lt[4*(c)+3][0])) \ 518 : "v10", "v11", "v12", "v13", "v14", "v15"); \ 519 break; \ 520 default: \ 521 ZFS_ASM_BUG(); \ 522 } \ 523 } 524 525 #define MUL(c, r...) \ 526 { \ 527 switch (REG_CNT(r)) { \ 528 case 4: \ 529 _MULx2(c, R_23(r)); \ 530 _MULx2(c, R_01(r)); \ 531 break; \ 532 case 2: \ 533 _MULx2(c, R_01(r)); \ 534 break; \ 535 default: \ 536 ZFS_ASM_BUG(); \ 537 } \ 538 } 539 540 #define raidz_math_begin() kfpu_begin() 541 #define raidz_math_end() kfpu_end() 542 543 /* Overkill... */ 544 #if 0 // defined(_KERNEL) 545 #define GEN_X_DEFINE_0_3() \ 546 register unsigned char w0 asm("0") __attribute__((vector_size(16))); \ 547 register unsigned char w1 asm("1") __attribute__((vector_size(16))); \ 548 register unsigned char w2 asm("2") __attribute__((vector_size(16))); \ 549 register unsigned char w3 asm("3") __attribute__((vector_size(16))); 550 #define GEN_X_DEFINE_4_5() \ 551 register unsigned char w4 asm("4") __attribute__((vector_size(16))); \ 552 register unsigned char w5 asm("5") __attribute__((vector_size(16))); 553 #define GEN_X_DEFINE_6_7() \ 554 register unsigned char w6 asm("6") __attribute__((vector_size(16))); \ 555 register unsigned char w7 asm("7") __attribute__((vector_size(16))); 556 #define GEN_X_DEFINE_8_9() \ 557 register unsigned char w8 asm("8") __attribute__((vector_size(16))); \ 558 register unsigned char w9 asm("9") __attribute__((vector_size(16))); 559 #define GEN_X_DEFINE_10_11() \ 560 register unsigned char w10 asm("10") __attribute__((vector_size(16))); \ 561 register unsigned char w11 asm("11") __attribute__((vector_size(16))); 562 #define GEN_X_DEFINE_12_15() \ 563 register unsigned char w12 asm("12") __attribute__((vector_size(16))); \ 564 register unsigned char w13 asm("13") __attribute__((vector_size(16))); \ 565 register unsigned char w14 asm("14") __attribute__((vector_size(16))); \ 566 register unsigned char w15 asm("15") __attribute__((vector_size(16))); 567 #define GEN_X_DEFINE_16() \ 568 register unsigned char w16 asm("16") __attribute__((vector_size(16))); 569 #define GEN_X_DEFINE_17() \ 570 register unsigned char w17 asm("17") __attribute__((vector_size(16))); 571 #define GEN_X_DEFINE_18_21() \ 572 register unsigned char w18 asm("18") __attribute__((vector_size(16))); \ 573 register unsigned char w19 asm("19") __attribute__((vector_size(16))); \ 574 register unsigned char w20 asm("20") __attribute__((vector_size(16))); \ 575 register unsigned char w21 asm("21") __attribute__((vector_size(16))); 576 #define GEN_X_DEFINE_22_23() \ 577 register unsigned char w22 asm("22") __attribute__((vector_size(16))); \ 578 register unsigned char w23 asm("23") __attribute__((vector_size(16))); 579 #define GEN_X_DEFINE_24_27() \ 580 register unsigned char w24 asm("24") __attribute__((vector_size(16))); \ 581 register unsigned char w25 asm("25") __attribute__((vector_size(16))); \ 582 register unsigned char w26 asm("26") __attribute__((vector_size(16))); \ 583 register unsigned char w27 asm("27") __attribute__((vector_size(16))); 584 #define GEN_X_DEFINE_28_30() \ 585 register unsigned char w28 asm("28") __attribute__((vector_size(16))); \ 586 register unsigned char w29 asm("29") __attribute__((vector_size(16))); \ 587 register unsigned char w30 asm("30") __attribute__((vector_size(16))); 588 #define GEN_X_DEFINE_31() \ 589 register unsigned char w31 asm("31") __attribute__((vector_size(16))); 590 #define GEN_X_DEFINE_32() \ 591 register unsigned char w32 asm("31") __attribute__((vector_size(16))); 592 #define GEN_X_DEFINE_33_36() \ 593 register unsigned char w33 asm("31") __attribute__((vector_size(16))); \ 594 register unsigned char w34 asm("31") __attribute__((vector_size(16))); \ 595 register unsigned char w35 asm("31") __attribute__((vector_size(16))); \ 596 register unsigned char w36 asm("31") __attribute__((vector_size(16))); 597 #define GEN_X_DEFINE_37_38() \ 598 register unsigned char w37 asm("31") __attribute__((vector_size(16))); \ 599 register unsigned char w38 asm("31") __attribute__((vector_size(16))); 600 #define GEN_X_DEFINE_ALL() \ 601 GEN_X_DEFINE_0_3() \ 602 GEN_X_DEFINE_4_5() \ 603 GEN_X_DEFINE_6_7() \ 604 GEN_X_DEFINE_8_9() \ 605 GEN_X_DEFINE_10_11() \ 606 GEN_X_DEFINE_12_15() \ 607 GEN_X_DEFINE_16() \ 608 GEN_X_DEFINE_17() \ 609 GEN_X_DEFINE_18_21() \ 610 GEN_X_DEFINE_22_23() \ 611 GEN_X_DEFINE_24_27() \ 612 GEN_X_DEFINE_28_30() \ 613 GEN_X_DEFINE_31() \ 614 GEN_X_DEFINE_32() \ 615 GEN_X_DEFINE_33_36() \ 616 GEN_X_DEFINE_37_38() 617 #else 618 #define GEN_X_DEFINE_0_3() \ 619 unsigned char w0 __attribute__((vector_size(16))); \ 620 unsigned char w1 __attribute__((vector_size(16))); \ 621 unsigned char w2 __attribute__((vector_size(16))); \ 622 unsigned char w3 __attribute__((vector_size(16))); 623 #define GEN_X_DEFINE_4_5() \ 624 unsigned char w4 __attribute__((vector_size(16))); \ 625 unsigned char w5 __attribute__((vector_size(16))); 626 #define GEN_X_DEFINE_6_7() \ 627 unsigned char w6 __attribute__((vector_size(16))); \ 628 unsigned char w7 __attribute__((vector_size(16))); 629 #define GEN_X_DEFINE_8_9() \ 630 unsigned char w8 __attribute__((vector_size(16))); \ 631 unsigned char w9 __attribute__((vector_size(16))); 632 #define GEN_X_DEFINE_10_11() \ 633 unsigned char w10 __attribute__((vector_size(16))); \ 634 unsigned char w11 __attribute__((vector_size(16))); 635 #define GEN_X_DEFINE_12_15() \ 636 unsigned char w12 __attribute__((vector_size(16))); \ 637 unsigned char w13 __attribute__((vector_size(16))); \ 638 unsigned char w14 __attribute__((vector_size(16))); \ 639 unsigned char w15 __attribute__((vector_size(16))); 640 #define GEN_X_DEFINE_16() \ 641 unsigned char w16 __attribute__((vector_size(16))); 642 #define GEN_X_DEFINE_17() \ 643 unsigned char w17 __attribute__((vector_size(16))); 644 #define GEN_X_DEFINE_18_21() \ 645 unsigned char w18 __attribute__((vector_size(16))); \ 646 unsigned char w19 __attribute__((vector_size(16))); \ 647 unsigned char w20 __attribute__((vector_size(16))); \ 648 unsigned char w21 __attribute__((vector_size(16))); 649 #define GEN_X_DEFINE_22_23() \ 650 unsigned char w22 __attribute__((vector_size(16))); \ 651 unsigned char w23 __attribute__((vector_size(16))); 652 #define GEN_X_DEFINE_24_27() \ 653 unsigned char w24 __attribute__((vector_size(16))); \ 654 unsigned char w25 __attribute__((vector_size(16))); \ 655 unsigned char w26 __attribute__((vector_size(16))); \ 656 unsigned char w27 __attribute__((vector_size(16))); 657 #define GEN_X_DEFINE_28_30() \ 658 unsigned char w28 __attribute__((vector_size(16))); \ 659 unsigned char w29 __attribute__((vector_size(16))); \ 660 unsigned char w30 __attribute__((vector_size(16))); 661 #define GEN_X_DEFINE_31() \ 662 unsigned char w31 __attribute__((vector_size(16))); 663 #define GEN_X_DEFINE_32() \ 664 unsigned char w32 __attribute__((vector_size(16))); 665 #define GEN_X_DEFINE_33_36() \ 666 unsigned char w33 __attribute__((vector_size(16))); \ 667 unsigned char w34 __attribute__((vector_size(16))); \ 668 unsigned char w35 __attribute__((vector_size(16))); \ 669 unsigned char w36 __attribute__((vector_size(16))); 670 #define GEN_X_DEFINE_37_38() \ 671 unsigned char w37 __attribute__((vector_size(16))); \ 672 unsigned char w38 __attribute__((vector_size(16))); 673 #define GEN_X_DEFINE_ALL() \ 674 GEN_X_DEFINE_0_3() \ 675 GEN_X_DEFINE_4_5() \ 676 GEN_X_DEFINE_6_7() \ 677 GEN_X_DEFINE_8_9() \ 678 GEN_X_DEFINE_10_11() \ 679 GEN_X_DEFINE_12_15() \ 680 GEN_X_DEFINE_16() \ 681 GEN_X_DEFINE_17() \ 682 GEN_X_DEFINE_18_21() \ 683 GEN_X_DEFINE_22_23() \ 684 GEN_X_DEFINE_24_27() \ 685 GEN_X_DEFINE_28_30() \ 686 GEN_X_DEFINE_31() \ 687 GEN_X_DEFINE_32() \ 688 GEN_X_DEFINE_33_36() \ 689 GEN_X_DEFINE_37_38() 690 #endif 691