1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Copyright (C) 2020-2022 Loongson Technology Corporation Limited 4 */ 5 #ifndef _ASM_INST_H 6 #define _ASM_INST_H 7 8 #include <linux/bitops.h> 9 #include <linux/types.h> 10 #include <asm/asm.h> 11 #include <asm/ptrace.h> 12 13 #define INSN_NOP 0x03400000 14 #define INSN_BREAK 0x002a0000 15 #define INSN_HVCL 0x002b8000 16 17 #define ADDR_IMMMASK_LU52ID 0xFFF0000000000000 18 #define ADDR_IMMMASK_LU32ID 0x000FFFFF00000000 19 #define ADDR_IMMMASK_LU12IW 0x00000000FFFFF000 20 #define ADDR_IMMMASK_ORI 0x0000000000000FFF 21 #define ADDR_IMMMASK_ADDU16ID 0x00000000FFFF0000 22 23 #define ADDR_IMMSHIFT_LU52ID 52 24 #define ADDR_IMMSBIDX_LU52ID 11 25 #define ADDR_IMMSHIFT_LU32ID 32 26 #define ADDR_IMMSBIDX_LU32ID 19 27 #define ADDR_IMMSHIFT_LU12IW 12 28 #define ADDR_IMMSBIDX_LU12IW 19 29 #define ADDR_IMMSHIFT_ORI 0 30 #define ADDR_IMMSBIDX_ORI 63 31 #define ADDR_IMMSHIFT_ADDU16ID 16 32 #define ADDR_IMMSBIDX_ADDU16ID 15 33 34 #define ADDR_IMM(addr, INSN) \ 35 (sign_extend64(((addr & ADDR_IMMMASK_##INSN) >> ADDR_IMMSHIFT_##INSN), ADDR_IMMSBIDX_##INSN)) 36 37 enum reg0i15_op { 38 break_op = 0x54, 39 }; 40 41 enum reg0i26_op { 42 b_op = 0x14, 43 bl_op = 0x15, 44 }; 45 46 enum reg1i20_op { 47 lu12iw_op = 0x0a, 48 lu32id_op = 0x0b, 49 pcaddi_op = 0x0c, 50 pcalau12i_op = 0x0d, 51 pcaddu12i_op = 0x0e, 52 pcaddu18i_op = 0x0f, 53 }; 54 55 enum reg1i21_op { 56 beqz_op = 0x10, 57 bnez_op = 0x11, 58 bceqz_op = 0x12, /* bits[9:8] = 0x00 */ 59 bcnez_op = 0x12, /* bits[9:8] = 0x01 */ 60 }; 61 62 enum reg2_op { 63 revb2h_op = 0x0c, 64 revb4h_op = 0x0d, 65 revb2w_op = 0x0e, 66 revbd_op = 0x0f, 67 revh2w_op = 0x10, 68 revhd_op = 0x11, 69 extwh_op = 0x16, 70 extwb_op = 0x17, 71 cpucfg_op = 0x1b, 72 iocsrrdb_op = 0x19200, 73 iocsrrdh_op = 0x19201, 74 iocsrrdw_op = 0x19202, 75 iocsrrdd_op = 0x19203, 76 iocsrwrb_op = 0x19204, 77 iocsrwrh_op = 0x19205, 78 iocsrwrw_op = 0x19206, 79 iocsrwrd_op = 0x19207, 80 }; 81 82 enum reg2i5_op { 83 slliw_op = 0x81, 84 srliw_op = 0x89, 85 sraiw_op = 0x91, 86 }; 87 88 enum reg2i6_op { 89 sllid_op = 0x41, 90 srlid_op = 0x45, 91 sraid_op = 0x49, 92 }; 93 94 enum reg2i12_op { 95 addiw_op = 0x0a, 96 addid_op = 0x0b, 97 lu52id_op = 0x0c, 98 andi_op = 0x0d, 99 ori_op = 0x0e, 100 xori_op = 0x0f, 101 ldb_op = 0xa0, 102 ldh_op = 0xa1, 103 ldw_op = 0xa2, 104 ldd_op = 0xa3, 105 stb_op = 0xa4, 106 sth_op = 0xa5, 107 stw_op = 0xa6, 108 std_op = 0xa7, 109 ldbu_op = 0xa8, 110 ldhu_op = 0xa9, 111 ldwu_op = 0xaa, 112 flds_op = 0xac, 113 fsts_op = 0xad, 114 fldd_op = 0xae, 115 fstd_op = 0xaf, 116 }; 117 118 enum reg2i14_op { 119 llw_op = 0x20, 120 scw_op = 0x21, 121 lld_op = 0x22, 122 scd_op = 0x23, 123 ldptrw_op = 0x24, 124 stptrw_op = 0x25, 125 ldptrd_op = 0x26, 126 stptrd_op = 0x27, 127 }; 128 129 enum reg2i16_op { 130 jirl_op = 0x13, 131 beq_op = 0x16, 132 bne_op = 0x17, 133 blt_op = 0x18, 134 bge_op = 0x19, 135 bltu_op = 0x1a, 136 bgeu_op = 0x1b, 137 }; 138 139 enum reg2bstrd_op { 140 bstrinsd_op = 0x2, 141 bstrpickd_op = 0x3, 142 }; 143 144 enum reg3_op { 145 asrtle_op = 0x02, 146 asrtgt_op = 0x03, 147 addw_op = 0x20, 148 addd_op = 0x21, 149 subw_op = 0x22, 150 subd_op = 0x23, 151 nor_op = 0x28, 152 and_op = 0x29, 153 or_op = 0x2a, 154 xor_op = 0x2b, 155 orn_op = 0x2c, 156 andn_op = 0x2d, 157 sllw_op = 0x2e, 158 srlw_op = 0x2f, 159 sraw_op = 0x30, 160 slld_op = 0x31, 161 srld_op = 0x32, 162 srad_op = 0x33, 163 mulw_op = 0x38, 164 mulhw_op = 0x39, 165 mulhwu_op = 0x3a, 166 muld_op = 0x3b, 167 mulhd_op = 0x3c, 168 mulhdu_op = 0x3d, 169 divw_op = 0x40, 170 modw_op = 0x41, 171 divwu_op = 0x42, 172 modwu_op = 0x43, 173 divd_op = 0x44, 174 modd_op = 0x45, 175 divdu_op = 0x46, 176 moddu_op = 0x47, 177 ldxb_op = 0x7000, 178 ldxh_op = 0x7008, 179 ldxw_op = 0x7010, 180 ldxd_op = 0x7018, 181 stxb_op = 0x7020, 182 stxh_op = 0x7028, 183 stxw_op = 0x7030, 184 stxd_op = 0x7038, 185 ldxbu_op = 0x7040, 186 ldxhu_op = 0x7048, 187 ldxwu_op = 0x7050, 188 fldxs_op = 0x7060, 189 fldxd_op = 0x7068, 190 fstxs_op = 0x7070, 191 fstxd_op = 0x7078, 192 amswapw_op = 0x70c0, 193 amswapd_op = 0x70c1, 194 amaddw_op = 0x70c2, 195 amaddd_op = 0x70c3, 196 amandw_op = 0x70c4, 197 amandd_op = 0x70c5, 198 amorw_op = 0x70c6, 199 amord_op = 0x70c7, 200 amxorw_op = 0x70c8, 201 amxord_op = 0x70c9, 202 ammaxw_op = 0x70ca, 203 ammaxd_op = 0x70cb, 204 amminw_op = 0x70cc, 205 ammind_op = 0x70cd, 206 ammaxwu_op = 0x70ce, 207 ammaxdu_op = 0x70cf, 208 amminwu_op = 0x70d0, 209 ammindu_op = 0x70d1, 210 amswapdbw_op = 0x70d2, 211 amswapdbd_op = 0x70d3, 212 amadddbw_op = 0x70d4, 213 amadddbd_op = 0x70d5, 214 amanddbw_op = 0x70d6, 215 amanddbd_op = 0x70d7, 216 amordbw_op = 0x70d8, 217 amordbd_op = 0x70d9, 218 amxordbw_op = 0x70da, 219 amxordbd_op = 0x70db, 220 ammaxdbw_op = 0x70dc, 221 ammaxdbd_op = 0x70dd, 222 ammindbw_op = 0x70de, 223 ammindbd_op = 0x70df, 224 ammaxdbwu_op = 0x70e0, 225 ammaxdbdu_op = 0x70e1, 226 ammindbwu_op = 0x70e2, 227 ammindbdu_op = 0x70e3, 228 fldgts_op = 0x70e8, 229 fldgtd_op = 0x70e9, 230 fldles_op = 0x70ea, 231 fldled_op = 0x70eb, 232 fstgts_op = 0x70ec, 233 fstgtd_op = 0x70ed, 234 fstles_op = 0x70ee, 235 fstled_op = 0x70ef, 236 ldgtb_op = 0x70f0, 237 ldgth_op = 0x70f1, 238 ldgtw_op = 0x70f2, 239 ldgtd_op = 0x70f3, 240 ldleb_op = 0x70f4, 241 ldleh_op = 0x70f5, 242 ldlew_op = 0x70f6, 243 ldled_op = 0x70f7, 244 stgtb_op = 0x70f8, 245 stgth_op = 0x70f9, 246 stgtw_op = 0x70fa, 247 stgtd_op = 0x70fb, 248 stleb_op = 0x70fc, 249 stleh_op = 0x70fd, 250 stlew_op = 0x70fe, 251 stled_op = 0x70ff, 252 }; 253 254 enum reg3sa2_op { 255 alslw_op = 0x02, 256 alslwu_op = 0x03, 257 alsld_op = 0x16, 258 }; 259 260 struct reg0i15_format { 261 unsigned int immediate : 15; 262 unsigned int opcode : 17; 263 }; 264 265 struct reg0i26_format { 266 unsigned int immediate_h : 10; 267 unsigned int immediate_l : 16; 268 unsigned int opcode : 6; 269 }; 270 271 struct reg1i20_format { 272 unsigned int rd : 5; 273 unsigned int immediate : 20; 274 unsigned int opcode : 7; 275 }; 276 277 struct reg1i21_format { 278 unsigned int immediate_h : 5; 279 unsigned int rj : 5; 280 unsigned int immediate_l : 16; 281 unsigned int opcode : 6; 282 }; 283 284 struct reg2_format { 285 unsigned int rd : 5; 286 unsigned int rj : 5; 287 unsigned int opcode : 22; 288 }; 289 290 struct reg2i5_format { 291 unsigned int rd : 5; 292 unsigned int rj : 5; 293 unsigned int immediate : 5; 294 unsigned int opcode : 17; 295 }; 296 297 struct reg2i6_format { 298 unsigned int rd : 5; 299 unsigned int rj : 5; 300 unsigned int immediate : 6; 301 unsigned int opcode : 16; 302 }; 303 304 struct reg2i12_format { 305 unsigned int rd : 5; 306 unsigned int rj : 5; 307 unsigned int immediate : 12; 308 unsigned int opcode : 10; 309 }; 310 311 struct reg2i14_format { 312 unsigned int rd : 5; 313 unsigned int rj : 5; 314 unsigned int immediate : 14; 315 unsigned int opcode : 8; 316 }; 317 318 struct reg2i16_format { 319 unsigned int rd : 5; 320 unsigned int rj : 5; 321 unsigned int immediate : 16; 322 unsigned int opcode : 6; 323 }; 324 325 struct reg2bstrd_format { 326 unsigned int rd : 5; 327 unsigned int rj : 5; 328 unsigned int lsbd : 6; 329 unsigned int msbd : 6; 330 unsigned int opcode : 10; 331 }; 332 333 struct reg2csr_format { 334 unsigned int rd : 5; 335 unsigned int rj : 5; 336 unsigned int csr : 14; 337 unsigned int opcode : 8; 338 }; 339 340 struct reg3_format { 341 unsigned int rd : 5; 342 unsigned int rj : 5; 343 unsigned int rk : 5; 344 unsigned int opcode : 17; 345 }; 346 347 struct reg3sa2_format { 348 unsigned int rd : 5; 349 unsigned int rj : 5; 350 unsigned int rk : 5; 351 unsigned int immediate : 2; 352 unsigned int opcode : 15; 353 }; 354 355 union loongarch_instruction { 356 unsigned int word; 357 struct reg0i15_format reg0i15_format; 358 struct reg0i26_format reg0i26_format; 359 struct reg1i20_format reg1i20_format; 360 struct reg1i21_format reg1i21_format; 361 struct reg2_format reg2_format; 362 struct reg2i5_format reg2i5_format; 363 struct reg2i6_format reg2i6_format; 364 struct reg2i12_format reg2i12_format; 365 struct reg2i14_format reg2i14_format; 366 struct reg2i16_format reg2i16_format; 367 struct reg2bstrd_format reg2bstrd_format; 368 struct reg2csr_format reg2csr_format; 369 struct reg3_format reg3_format; 370 struct reg3sa2_format reg3sa2_format; 371 }; 372 373 #define LOONGARCH_INSN_SIZE sizeof(union loongarch_instruction) 374 375 enum loongarch_gpr { 376 LOONGARCH_GPR_ZERO = 0, 377 LOONGARCH_GPR_RA = 1, 378 LOONGARCH_GPR_TP = 2, 379 LOONGARCH_GPR_SP = 3, 380 LOONGARCH_GPR_A0 = 4, /* Reused as V0 for return value */ 381 LOONGARCH_GPR_A1, /* Reused as V1 for return value */ 382 LOONGARCH_GPR_A2, 383 LOONGARCH_GPR_A3, 384 LOONGARCH_GPR_A4, 385 LOONGARCH_GPR_A5, 386 LOONGARCH_GPR_A6, 387 LOONGARCH_GPR_A7, 388 LOONGARCH_GPR_T0 = 12, 389 LOONGARCH_GPR_T1, 390 LOONGARCH_GPR_T2, 391 LOONGARCH_GPR_T3, 392 LOONGARCH_GPR_T4, 393 LOONGARCH_GPR_T5, 394 LOONGARCH_GPR_T6, 395 LOONGARCH_GPR_T7, 396 LOONGARCH_GPR_T8, 397 LOONGARCH_GPR_FP = 22, 398 LOONGARCH_GPR_S0 = 23, 399 LOONGARCH_GPR_S1, 400 LOONGARCH_GPR_S2, 401 LOONGARCH_GPR_S3, 402 LOONGARCH_GPR_S4, 403 LOONGARCH_GPR_S5, 404 LOONGARCH_GPR_S6, 405 LOONGARCH_GPR_S7, 406 LOONGARCH_GPR_S8, 407 LOONGARCH_GPR_MAX 408 }; 409 410 #define is_imm12_negative(val) is_imm_negative(val, 12) 411 412 static inline bool is_imm_negative(unsigned long val, unsigned int bit) 413 { 414 return val & (1UL << (bit - 1)); 415 } 416 417 static inline bool is_break_ins(union loongarch_instruction *ip) 418 { 419 return ip->reg0i15_format.opcode == break_op; 420 } 421 422 static inline bool is_pc_ins(union loongarch_instruction *ip) 423 { 424 return ip->reg1i20_format.opcode >= pcaddi_op && 425 ip->reg1i20_format.opcode <= pcaddu18i_op; 426 } 427 428 static inline bool is_branch_ins(union loongarch_instruction *ip) 429 { 430 return ip->reg1i21_format.opcode >= beqz_op && 431 ip->reg1i21_format.opcode <= bgeu_op; 432 } 433 434 static inline bool is_ra_save_ins(union loongarch_instruction *ip) 435 { 436 /* st.d $ra, $sp, offset */ 437 return ip->reg2i12_format.opcode == std_op && 438 ip->reg2i12_format.rj == LOONGARCH_GPR_SP && 439 ip->reg2i12_format.rd == LOONGARCH_GPR_RA && 440 !is_imm12_negative(ip->reg2i12_format.immediate); 441 } 442 443 static inline bool is_stack_alloc_ins(union loongarch_instruction *ip) 444 { 445 /* addi.d $sp, $sp, -imm */ 446 return ip->reg2i12_format.opcode == addid_op && 447 ip->reg2i12_format.rj == LOONGARCH_GPR_SP && 448 ip->reg2i12_format.rd == LOONGARCH_GPR_SP && 449 is_imm12_negative(ip->reg2i12_format.immediate); 450 } 451 452 static inline bool is_self_loop_ins(union loongarch_instruction *ip, struct pt_regs *regs) 453 { 454 switch (ip->reg0i26_format.opcode) { 455 case b_op: 456 case bl_op: 457 if (ip->reg0i26_format.immediate_l == 0 458 && ip->reg0i26_format.immediate_h == 0) 459 return true; 460 } 461 462 switch (ip->reg1i21_format.opcode) { 463 case beqz_op: 464 case bnez_op: 465 case bceqz_op: 466 if (ip->reg1i21_format.immediate_l == 0 467 && ip->reg1i21_format.immediate_h == 0) 468 return true; 469 } 470 471 switch (ip->reg2i16_format.opcode) { 472 case beq_op: 473 case bne_op: 474 case blt_op: 475 case bge_op: 476 case bltu_op: 477 case bgeu_op: 478 if (ip->reg2i16_format.immediate == 0) 479 return true; 480 break; 481 case jirl_op: 482 if (regs->regs[ip->reg2i16_format.rj] + 483 ((unsigned long)ip->reg2i16_format.immediate << 2) == (unsigned long)ip) 484 return true; 485 } 486 487 return false; 488 } 489 490 void simu_pc(struct pt_regs *regs, union loongarch_instruction insn); 491 void simu_branch(struct pt_regs *regs, union loongarch_instruction insn); 492 493 bool insns_not_supported(union loongarch_instruction insn); 494 bool insns_need_simulation(union loongarch_instruction insn); 495 void arch_simulate_insn(union loongarch_instruction insn, struct pt_regs *regs); 496 497 int larch_insn_read(void *addr, u32 *insnp); 498 int larch_insn_write(void *addr, u32 insn); 499 int larch_insn_patch_text(void *addr, u32 insn); 500 501 u32 larch_insn_gen_nop(void); 502 u32 larch_insn_gen_b(unsigned long pc, unsigned long dest); 503 u32 larch_insn_gen_bl(unsigned long pc, unsigned long dest); 504 505 u32 larch_insn_gen_break(int imm); 506 507 u32 larch_insn_gen_or(enum loongarch_gpr rd, enum loongarch_gpr rj, enum loongarch_gpr rk); 508 u32 larch_insn_gen_move(enum loongarch_gpr rd, enum loongarch_gpr rj); 509 510 u32 larch_insn_gen_lu12iw(enum loongarch_gpr rd, int imm); 511 u32 larch_insn_gen_lu32id(enum loongarch_gpr rd, int imm); 512 u32 larch_insn_gen_lu52id(enum loongarch_gpr rd, enum loongarch_gpr rj, int imm); 513 u32 larch_insn_gen_jirl(enum loongarch_gpr rd, enum loongarch_gpr rj, int imm); 514 515 static inline bool signed_imm_check(long val, unsigned int bit) 516 { 517 return -(1L << (bit - 1)) <= val && val < (1L << (bit - 1)); 518 } 519 520 static inline bool unsigned_imm_check(unsigned long val, unsigned int bit) 521 { 522 return val < (1UL << bit); 523 } 524 525 #define DEF_EMIT_REG0I15_FORMAT(NAME, OP) \ 526 static inline void emit_##NAME(union loongarch_instruction *insn, \ 527 int imm) \ 528 { \ 529 insn->reg0i15_format.opcode = OP; \ 530 insn->reg0i15_format.immediate = imm; \ 531 } 532 533 DEF_EMIT_REG0I15_FORMAT(break, break_op) 534 535 #define DEF_EMIT_REG0I26_FORMAT(NAME, OP) \ 536 static inline void emit_##NAME(union loongarch_instruction *insn, \ 537 int offset) \ 538 { \ 539 unsigned int immediate_l, immediate_h; \ 540 \ 541 immediate_l = offset & 0xffff; \ 542 offset >>= 16; \ 543 immediate_h = offset & 0x3ff; \ 544 \ 545 insn->reg0i26_format.opcode = OP; \ 546 insn->reg0i26_format.immediate_l = immediate_l; \ 547 insn->reg0i26_format.immediate_h = immediate_h; \ 548 } 549 550 DEF_EMIT_REG0I26_FORMAT(b, b_op) 551 DEF_EMIT_REG0I26_FORMAT(bl, bl_op) 552 553 #define DEF_EMIT_REG1I20_FORMAT(NAME, OP) \ 554 static inline void emit_##NAME(union loongarch_instruction *insn, \ 555 enum loongarch_gpr rd, int imm) \ 556 { \ 557 insn->reg1i20_format.opcode = OP; \ 558 insn->reg1i20_format.immediate = imm; \ 559 insn->reg1i20_format.rd = rd; \ 560 } 561 562 DEF_EMIT_REG1I20_FORMAT(lu12iw, lu12iw_op) 563 DEF_EMIT_REG1I20_FORMAT(lu32id, lu32id_op) 564 DEF_EMIT_REG1I20_FORMAT(pcaddu18i, pcaddu18i_op) 565 566 #define DEF_EMIT_REG2_FORMAT(NAME, OP) \ 567 static inline void emit_##NAME(union loongarch_instruction *insn, \ 568 enum loongarch_gpr rd, \ 569 enum loongarch_gpr rj) \ 570 { \ 571 insn->reg2_format.opcode = OP; \ 572 insn->reg2_format.rd = rd; \ 573 insn->reg2_format.rj = rj; \ 574 } 575 576 DEF_EMIT_REG2_FORMAT(revb2h, revb2h_op) 577 DEF_EMIT_REG2_FORMAT(revb2w, revb2w_op) 578 DEF_EMIT_REG2_FORMAT(revbd, revbd_op) 579 DEF_EMIT_REG2_FORMAT(extwh, extwh_op) 580 DEF_EMIT_REG2_FORMAT(extwb, extwb_op) 581 582 #define DEF_EMIT_REG2I5_FORMAT(NAME, OP) \ 583 static inline void emit_##NAME(union loongarch_instruction *insn, \ 584 enum loongarch_gpr rd, \ 585 enum loongarch_gpr rj, \ 586 int imm) \ 587 { \ 588 insn->reg2i5_format.opcode = OP; \ 589 insn->reg2i5_format.immediate = imm; \ 590 insn->reg2i5_format.rd = rd; \ 591 insn->reg2i5_format.rj = rj; \ 592 } 593 594 DEF_EMIT_REG2I5_FORMAT(slliw, slliw_op) 595 DEF_EMIT_REG2I5_FORMAT(srliw, srliw_op) 596 DEF_EMIT_REG2I5_FORMAT(sraiw, sraiw_op) 597 598 #define DEF_EMIT_REG2I6_FORMAT(NAME, OP) \ 599 static inline void emit_##NAME(union loongarch_instruction *insn, \ 600 enum loongarch_gpr rd, \ 601 enum loongarch_gpr rj, \ 602 int imm) \ 603 { \ 604 insn->reg2i6_format.opcode = OP; \ 605 insn->reg2i6_format.immediate = imm; \ 606 insn->reg2i6_format.rd = rd; \ 607 insn->reg2i6_format.rj = rj; \ 608 } 609 610 DEF_EMIT_REG2I6_FORMAT(sllid, sllid_op) 611 DEF_EMIT_REG2I6_FORMAT(srlid, srlid_op) 612 DEF_EMIT_REG2I6_FORMAT(sraid, sraid_op) 613 614 #define DEF_EMIT_REG2I12_FORMAT(NAME, OP) \ 615 static inline void emit_##NAME(union loongarch_instruction *insn, \ 616 enum loongarch_gpr rd, \ 617 enum loongarch_gpr rj, \ 618 int imm) \ 619 { \ 620 insn->reg2i12_format.opcode = OP; \ 621 insn->reg2i12_format.immediate = imm; \ 622 insn->reg2i12_format.rd = rd; \ 623 insn->reg2i12_format.rj = rj; \ 624 } 625 626 DEF_EMIT_REG2I12_FORMAT(addiw, addiw_op) 627 DEF_EMIT_REG2I12_FORMAT(addid, addid_op) 628 DEF_EMIT_REG2I12_FORMAT(lu52id, lu52id_op) 629 DEF_EMIT_REG2I12_FORMAT(andi, andi_op) 630 DEF_EMIT_REG2I12_FORMAT(ori, ori_op) 631 DEF_EMIT_REG2I12_FORMAT(xori, xori_op) 632 DEF_EMIT_REG2I12_FORMAT(ldb, ldb_op) 633 DEF_EMIT_REG2I12_FORMAT(ldh, ldh_op) 634 DEF_EMIT_REG2I12_FORMAT(ldw, ldw_op) 635 DEF_EMIT_REG2I12_FORMAT(ldbu, ldbu_op) 636 DEF_EMIT_REG2I12_FORMAT(ldhu, ldhu_op) 637 DEF_EMIT_REG2I12_FORMAT(ldwu, ldwu_op) 638 DEF_EMIT_REG2I12_FORMAT(ldd, ldd_op) 639 DEF_EMIT_REG2I12_FORMAT(stb, stb_op) 640 DEF_EMIT_REG2I12_FORMAT(sth, sth_op) 641 DEF_EMIT_REG2I12_FORMAT(stw, stw_op) 642 DEF_EMIT_REG2I12_FORMAT(std, std_op) 643 644 #define DEF_EMIT_REG2I14_FORMAT(NAME, OP) \ 645 static inline void emit_##NAME(union loongarch_instruction *insn, \ 646 enum loongarch_gpr rd, \ 647 enum loongarch_gpr rj, \ 648 int imm) \ 649 { \ 650 insn->reg2i14_format.opcode = OP; \ 651 insn->reg2i14_format.immediate = imm; \ 652 insn->reg2i14_format.rd = rd; \ 653 insn->reg2i14_format.rj = rj; \ 654 } 655 656 DEF_EMIT_REG2I14_FORMAT(llw, llw_op) 657 DEF_EMIT_REG2I14_FORMAT(scw, scw_op) 658 DEF_EMIT_REG2I14_FORMAT(lld, lld_op) 659 DEF_EMIT_REG2I14_FORMAT(scd, scd_op) 660 DEF_EMIT_REG2I14_FORMAT(ldptrw, ldptrw_op) 661 DEF_EMIT_REG2I14_FORMAT(stptrw, stptrw_op) 662 DEF_EMIT_REG2I14_FORMAT(ldptrd, ldptrd_op) 663 DEF_EMIT_REG2I14_FORMAT(stptrd, stptrd_op) 664 665 #define DEF_EMIT_REG2I16_FORMAT(NAME, OP) \ 666 static inline void emit_##NAME(union loongarch_instruction *insn, \ 667 enum loongarch_gpr rj, \ 668 enum loongarch_gpr rd, \ 669 int offset) \ 670 { \ 671 insn->reg2i16_format.opcode = OP; \ 672 insn->reg2i16_format.immediate = offset; \ 673 insn->reg2i16_format.rj = rj; \ 674 insn->reg2i16_format.rd = rd; \ 675 } 676 677 DEF_EMIT_REG2I16_FORMAT(beq, beq_op) 678 DEF_EMIT_REG2I16_FORMAT(bne, bne_op) 679 DEF_EMIT_REG2I16_FORMAT(blt, blt_op) 680 DEF_EMIT_REG2I16_FORMAT(bge, bge_op) 681 DEF_EMIT_REG2I16_FORMAT(bltu, bltu_op) 682 DEF_EMIT_REG2I16_FORMAT(bgeu, bgeu_op) 683 DEF_EMIT_REG2I16_FORMAT(jirl, jirl_op) 684 685 #define DEF_EMIT_REG2BSTRD_FORMAT(NAME, OP) \ 686 static inline void emit_##NAME(union loongarch_instruction *insn, \ 687 enum loongarch_gpr rd, \ 688 enum loongarch_gpr rj, \ 689 int msbd, \ 690 int lsbd) \ 691 { \ 692 insn->reg2bstrd_format.opcode = OP; \ 693 insn->reg2bstrd_format.msbd = msbd; \ 694 insn->reg2bstrd_format.lsbd = lsbd; \ 695 insn->reg2bstrd_format.rj = rj; \ 696 insn->reg2bstrd_format.rd = rd; \ 697 } 698 699 DEF_EMIT_REG2BSTRD_FORMAT(bstrpickd, bstrpickd_op) 700 701 #define DEF_EMIT_REG3_FORMAT(NAME, OP) \ 702 static inline void emit_##NAME(union loongarch_instruction *insn, \ 703 enum loongarch_gpr rd, \ 704 enum loongarch_gpr rj, \ 705 enum loongarch_gpr rk) \ 706 { \ 707 insn->reg3_format.opcode = OP; \ 708 insn->reg3_format.rd = rd; \ 709 insn->reg3_format.rj = rj; \ 710 insn->reg3_format.rk = rk; \ 711 } 712 713 DEF_EMIT_REG3_FORMAT(addw, addw_op) 714 DEF_EMIT_REG3_FORMAT(addd, addd_op) 715 DEF_EMIT_REG3_FORMAT(subd, subd_op) 716 DEF_EMIT_REG3_FORMAT(muld, muld_op) 717 DEF_EMIT_REG3_FORMAT(divd, divd_op) 718 DEF_EMIT_REG3_FORMAT(modd, modd_op) 719 DEF_EMIT_REG3_FORMAT(divdu, divdu_op) 720 DEF_EMIT_REG3_FORMAT(moddu, moddu_op) 721 DEF_EMIT_REG3_FORMAT(and, and_op) 722 DEF_EMIT_REG3_FORMAT(or, or_op) 723 DEF_EMIT_REG3_FORMAT(xor, xor_op) 724 DEF_EMIT_REG3_FORMAT(sllw, sllw_op) 725 DEF_EMIT_REG3_FORMAT(slld, slld_op) 726 DEF_EMIT_REG3_FORMAT(srlw, srlw_op) 727 DEF_EMIT_REG3_FORMAT(srld, srld_op) 728 DEF_EMIT_REG3_FORMAT(sraw, sraw_op) 729 DEF_EMIT_REG3_FORMAT(srad, srad_op) 730 DEF_EMIT_REG3_FORMAT(ldxb, ldxb_op) 731 DEF_EMIT_REG3_FORMAT(ldxh, ldxh_op) 732 DEF_EMIT_REG3_FORMAT(ldxw, ldxw_op) 733 DEF_EMIT_REG3_FORMAT(ldxbu, ldxbu_op) 734 DEF_EMIT_REG3_FORMAT(ldxhu, ldxhu_op) 735 DEF_EMIT_REG3_FORMAT(ldxwu, ldxwu_op) 736 DEF_EMIT_REG3_FORMAT(ldxd, ldxd_op) 737 DEF_EMIT_REG3_FORMAT(stxb, stxb_op) 738 DEF_EMIT_REG3_FORMAT(stxh, stxh_op) 739 DEF_EMIT_REG3_FORMAT(stxw, stxw_op) 740 DEF_EMIT_REG3_FORMAT(stxd, stxd_op) 741 DEF_EMIT_REG3_FORMAT(amaddw, amaddw_op) 742 DEF_EMIT_REG3_FORMAT(amaddd, amaddd_op) 743 DEF_EMIT_REG3_FORMAT(amandw, amandw_op) 744 DEF_EMIT_REG3_FORMAT(amandd, amandd_op) 745 DEF_EMIT_REG3_FORMAT(amorw, amorw_op) 746 DEF_EMIT_REG3_FORMAT(amord, amord_op) 747 DEF_EMIT_REG3_FORMAT(amxorw, amxorw_op) 748 DEF_EMIT_REG3_FORMAT(amxord, amxord_op) 749 DEF_EMIT_REG3_FORMAT(amswapw, amswapw_op) 750 DEF_EMIT_REG3_FORMAT(amswapd, amswapd_op) 751 752 #define DEF_EMIT_REG3SA2_FORMAT(NAME, OP) \ 753 static inline void emit_##NAME(union loongarch_instruction *insn, \ 754 enum loongarch_gpr rd, \ 755 enum loongarch_gpr rj, \ 756 enum loongarch_gpr rk, \ 757 int imm) \ 758 { \ 759 insn->reg3sa2_format.opcode = OP; \ 760 insn->reg3sa2_format.immediate = imm; \ 761 insn->reg3sa2_format.rd = rd; \ 762 insn->reg3sa2_format.rj = rj; \ 763 insn->reg3sa2_format.rk = rk; \ 764 } 765 766 DEF_EMIT_REG3SA2_FORMAT(alsld, alsld_op) 767 768 struct pt_regs; 769 770 void emulate_load_store_insn(struct pt_regs *regs, void __user *addr, unsigned int *pc); 771 unsigned long unaligned_read(void __user *addr, void *value, unsigned long n, bool sign); 772 unsigned long unaligned_write(void __user *addr, unsigned long value, unsigned long n); 773 774 #endif /* _ASM_INST_H */ 775