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 llacqw_op = 0xe15e0,
81 screlw_op = 0xe15e1,
82 llacqd_op = 0xe15e2,
83 screld_op = 0xe15e3,
84 };
85
86 enum reg2i5_op {
87 slliw_op = 0x81,
88 srliw_op = 0x89,
89 sraiw_op = 0x91,
90 };
91
92 enum reg2i6_op {
93 sllid_op = 0x41,
94 srlid_op = 0x45,
95 sraid_op = 0x49,
96 };
97
98 enum reg2i12_op {
99 addiw_op = 0x0a,
100 addid_op = 0x0b,
101 lu52id_op = 0x0c,
102 andi_op = 0x0d,
103 ori_op = 0x0e,
104 xori_op = 0x0f,
105 ldb_op = 0xa0,
106 ldh_op = 0xa1,
107 ldw_op = 0xa2,
108 ldd_op = 0xa3,
109 stb_op = 0xa4,
110 sth_op = 0xa5,
111 stw_op = 0xa6,
112 std_op = 0xa7,
113 ldbu_op = 0xa8,
114 ldhu_op = 0xa9,
115 ldwu_op = 0xaa,
116 flds_op = 0xac,
117 fsts_op = 0xad,
118 fldd_op = 0xae,
119 fstd_op = 0xaf,
120 };
121
122 enum reg2i14_op {
123 llw_op = 0x20,
124 scw_op = 0x21,
125 lld_op = 0x22,
126 scd_op = 0x23,
127 ldptrw_op = 0x24,
128 stptrw_op = 0x25,
129 ldptrd_op = 0x26,
130 stptrd_op = 0x27,
131 };
132
133 enum reg2i16_op {
134 jirl_op = 0x13,
135 beq_op = 0x16,
136 bne_op = 0x17,
137 blt_op = 0x18,
138 bge_op = 0x19,
139 bltu_op = 0x1a,
140 bgeu_op = 0x1b,
141 };
142
143 enum reg2bstrd_op {
144 bstrinsd_op = 0x2,
145 bstrpickd_op = 0x3,
146 };
147
148 enum reg3_op {
149 asrtle_op = 0x02,
150 asrtgt_op = 0x03,
151 addw_op = 0x20,
152 addd_op = 0x21,
153 subw_op = 0x22,
154 subd_op = 0x23,
155 nor_op = 0x28,
156 and_op = 0x29,
157 or_op = 0x2a,
158 xor_op = 0x2b,
159 orn_op = 0x2c,
160 andn_op = 0x2d,
161 sllw_op = 0x2e,
162 srlw_op = 0x2f,
163 sraw_op = 0x30,
164 slld_op = 0x31,
165 srld_op = 0x32,
166 srad_op = 0x33,
167 mulw_op = 0x38,
168 mulhw_op = 0x39,
169 mulhwu_op = 0x3a,
170 muld_op = 0x3b,
171 mulhd_op = 0x3c,
172 mulhdu_op = 0x3d,
173 divw_op = 0x40,
174 modw_op = 0x41,
175 divwu_op = 0x42,
176 modwu_op = 0x43,
177 divd_op = 0x44,
178 modd_op = 0x45,
179 divdu_op = 0x46,
180 moddu_op = 0x47,
181 ldxb_op = 0x7000,
182 ldxh_op = 0x7008,
183 ldxw_op = 0x7010,
184 ldxd_op = 0x7018,
185 stxb_op = 0x7020,
186 stxh_op = 0x7028,
187 stxw_op = 0x7030,
188 stxd_op = 0x7038,
189 ldxbu_op = 0x7040,
190 ldxhu_op = 0x7048,
191 ldxwu_op = 0x7050,
192 fldxs_op = 0x7060,
193 fldxd_op = 0x7068,
194 fstxs_op = 0x7070,
195 fstxd_op = 0x7078,
196 scq_op = 0x70ae,
197 amswapw_op = 0x70c0,
198 amswapd_op = 0x70c1,
199 amaddw_op = 0x70c2,
200 amaddd_op = 0x70c3,
201 amandw_op = 0x70c4,
202 amandd_op = 0x70c5,
203 amorw_op = 0x70c6,
204 amord_op = 0x70c7,
205 amxorw_op = 0x70c8,
206 amxord_op = 0x70c9,
207 ammaxw_op = 0x70ca,
208 ammaxd_op = 0x70cb,
209 amminw_op = 0x70cc,
210 ammind_op = 0x70cd,
211 ammaxwu_op = 0x70ce,
212 ammaxdu_op = 0x70cf,
213 amminwu_op = 0x70d0,
214 ammindu_op = 0x70d1,
215 amswapdbw_op = 0x70d2,
216 amswapdbd_op = 0x70d3,
217 amadddbw_op = 0x70d4,
218 amadddbd_op = 0x70d5,
219 amanddbw_op = 0x70d6,
220 amanddbd_op = 0x70d7,
221 amordbw_op = 0x70d8,
222 amordbd_op = 0x70d9,
223 amxordbw_op = 0x70da,
224 amxordbd_op = 0x70db,
225 ammaxdbw_op = 0x70dc,
226 ammaxdbd_op = 0x70dd,
227 ammindbw_op = 0x70de,
228 ammindbd_op = 0x70df,
229 ammaxdbwu_op = 0x70e0,
230 ammaxdbdu_op = 0x70e1,
231 ammindbwu_op = 0x70e2,
232 ammindbdu_op = 0x70e3,
233 fldgts_op = 0x70e8,
234 fldgtd_op = 0x70e9,
235 fldles_op = 0x70ea,
236 fldled_op = 0x70eb,
237 fstgts_op = 0x70ec,
238 fstgtd_op = 0x70ed,
239 fstles_op = 0x70ee,
240 fstled_op = 0x70ef,
241 ldgtb_op = 0x70f0,
242 ldgth_op = 0x70f1,
243 ldgtw_op = 0x70f2,
244 ldgtd_op = 0x70f3,
245 ldleb_op = 0x70f4,
246 ldleh_op = 0x70f5,
247 ldlew_op = 0x70f6,
248 ldled_op = 0x70f7,
249 stgtb_op = 0x70f8,
250 stgth_op = 0x70f9,
251 stgtw_op = 0x70fa,
252 stgtd_op = 0x70fb,
253 stleb_op = 0x70fc,
254 stleh_op = 0x70fd,
255 stlew_op = 0x70fe,
256 stled_op = 0x70ff,
257 };
258
259 enum reg3sa2_op {
260 alslw_op = 0x02,
261 alslwu_op = 0x03,
262 alsld_op = 0x16,
263 };
264
265 struct reg0i15_format {
266 unsigned int immediate : 15;
267 unsigned int opcode : 17;
268 };
269
270 struct reg0i26_format {
271 unsigned int immediate_h : 10;
272 unsigned int immediate_l : 16;
273 unsigned int opcode : 6;
274 };
275
276 struct reg1i20_format {
277 unsigned int rd : 5;
278 unsigned int immediate : 20;
279 unsigned int opcode : 7;
280 };
281
282 struct reg1i21_format {
283 unsigned int immediate_h : 5;
284 unsigned int rj : 5;
285 unsigned int immediate_l : 16;
286 unsigned int opcode : 6;
287 };
288
289 struct reg2_format {
290 unsigned int rd : 5;
291 unsigned int rj : 5;
292 unsigned int opcode : 22;
293 };
294
295 struct reg2i5_format {
296 unsigned int rd : 5;
297 unsigned int rj : 5;
298 unsigned int immediate : 5;
299 unsigned int opcode : 17;
300 };
301
302 struct reg2i6_format {
303 unsigned int rd : 5;
304 unsigned int rj : 5;
305 unsigned int immediate : 6;
306 unsigned int opcode : 16;
307 };
308
309 struct reg2i12_format {
310 unsigned int rd : 5;
311 unsigned int rj : 5;
312 unsigned int immediate : 12;
313 unsigned int opcode : 10;
314 };
315
316 struct reg2i14_format {
317 unsigned int rd : 5;
318 unsigned int rj : 5;
319 unsigned int immediate : 14;
320 unsigned int opcode : 8;
321 };
322
323 struct reg2i16_format {
324 unsigned int rd : 5;
325 unsigned int rj : 5;
326 unsigned int immediate : 16;
327 unsigned int opcode : 6;
328 };
329
330 struct reg2bstrd_format {
331 unsigned int rd : 5;
332 unsigned int rj : 5;
333 unsigned int lsbd : 6;
334 unsigned int msbd : 6;
335 unsigned int opcode : 10;
336 };
337
338 struct reg2csr_format {
339 unsigned int rd : 5;
340 unsigned int rj : 5;
341 unsigned int csr : 14;
342 unsigned int opcode : 8;
343 };
344
345 struct reg3_format {
346 unsigned int rd : 5;
347 unsigned int rj : 5;
348 unsigned int rk : 5;
349 unsigned int opcode : 17;
350 };
351
352 struct reg3sa2_format {
353 unsigned int rd : 5;
354 unsigned int rj : 5;
355 unsigned int rk : 5;
356 unsigned int immediate : 2;
357 unsigned int opcode : 15;
358 };
359
360 union loongarch_instruction {
361 unsigned int word;
362 struct reg0i15_format reg0i15_format;
363 struct reg0i26_format reg0i26_format;
364 struct reg1i20_format reg1i20_format;
365 struct reg1i21_format reg1i21_format;
366 struct reg2_format reg2_format;
367 struct reg2i5_format reg2i5_format;
368 struct reg2i6_format reg2i6_format;
369 struct reg2i12_format reg2i12_format;
370 struct reg2i14_format reg2i14_format;
371 struct reg2i16_format reg2i16_format;
372 struct reg2bstrd_format reg2bstrd_format;
373 struct reg2csr_format reg2csr_format;
374 struct reg3_format reg3_format;
375 struct reg3sa2_format reg3sa2_format;
376 };
377
378 #define LOONGARCH_INSN_SIZE sizeof(union loongarch_instruction)
379
380 enum loongarch_gpr {
381 LOONGARCH_GPR_ZERO = 0,
382 LOONGARCH_GPR_RA = 1,
383 LOONGARCH_GPR_TP = 2,
384 LOONGARCH_GPR_SP = 3,
385 LOONGARCH_GPR_A0 = 4, /* Reused as V0 for return value */
386 LOONGARCH_GPR_A1, /* Reused as V1 for return value */
387 LOONGARCH_GPR_A2,
388 LOONGARCH_GPR_A3,
389 LOONGARCH_GPR_A4,
390 LOONGARCH_GPR_A5,
391 LOONGARCH_GPR_A6,
392 LOONGARCH_GPR_A7,
393 LOONGARCH_GPR_T0 = 12,
394 LOONGARCH_GPR_T1,
395 LOONGARCH_GPR_T2,
396 LOONGARCH_GPR_T3,
397 LOONGARCH_GPR_T4,
398 LOONGARCH_GPR_T5,
399 LOONGARCH_GPR_T6,
400 LOONGARCH_GPR_T7,
401 LOONGARCH_GPR_T8,
402 LOONGARCH_GPR_FP = 22,
403 LOONGARCH_GPR_S0 = 23,
404 LOONGARCH_GPR_S1,
405 LOONGARCH_GPR_S2,
406 LOONGARCH_GPR_S3,
407 LOONGARCH_GPR_S4,
408 LOONGARCH_GPR_S5,
409 LOONGARCH_GPR_S6,
410 LOONGARCH_GPR_S7,
411 LOONGARCH_GPR_S8,
412 LOONGARCH_GPR_MAX
413 };
414
415 #define is_imm12_negative(val) is_imm_negative(val, 12)
416
is_imm_negative(unsigned long val,unsigned int bit)417 static inline bool is_imm_negative(unsigned long val, unsigned int bit)
418 {
419 return val & (1UL << (bit - 1));
420 }
421
is_break_ins(union loongarch_instruction * ip)422 static inline bool is_break_ins(union loongarch_instruction *ip)
423 {
424 return ip->reg0i15_format.opcode == break_op;
425 }
426
is_pc_ins(union loongarch_instruction * ip)427 static inline bool is_pc_ins(union loongarch_instruction *ip)
428 {
429 return ip->reg1i20_format.opcode >= pcaddi_op &&
430 ip->reg1i20_format.opcode <= pcaddu18i_op;
431 }
432
is_branch_ins(union loongarch_instruction * ip)433 static inline bool is_branch_ins(union loongarch_instruction *ip)
434 {
435 return ip->reg1i21_format.opcode >= beqz_op &&
436 ip->reg1i21_format.opcode <= bgeu_op;
437 }
438
is_ra_save_ins(union loongarch_instruction * ip)439 static inline bool is_ra_save_ins(union loongarch_instruction *ip)
440 {
441 /* st.d $ra, $sp, offset */
442 return ip->reg2i12_format.opcode == std_op &&
443 ip->reg2i12_format.rj == LOONGARCH_GPR_SP &&
444 ip->reg2i12_format.rd == LOONGARCH_GPR_RA &&
445 !is_imm12_negative(ip->reg2i12_format.immediate);
446 }
447
is_stack_alloc_ins(union loongarch_instruction * ip)448 static inline bool is_stack_alloc_ins(union loongarch_instruction *ip)
449 {
450 /* addi.d $sp, $sp, -imm */
451 return ip->reg2i12_format.opcode == addid_op &&
452 ip->reg2i12_format.rj == LOONGARCH_GPR_SP &&
453 ip->reg2i12_format.rd == LOONGARCH_GPR_SP &&
454 is_imm12_negative(ip->reg2i12_format.immediate);
455 }
456
is_self_loop_ins(union loongarch_instruction * ip,struct pt_regs * regs)457 static inline bool is_self_loop_ins(union loongarch_instruction *ip, struct pt_regs *regs)
458 {
459 switch (ip->reg0i26_format.opcode) {
460 case b_op:
461 case bl_op:
462 if (ip->reg0i26_format.immediate_l == 0
463 && ip->reg0i26_format.immediate_h == 0)
464 return true;
465 }
466
467 switch (ip->reg1i21_format.opcode) {
468 case beqz_op:
469 case bnez_op:
470 case bceqz_op:
471 if (ip->reg1i21_format.immediate_l == 0
472 && ip->reg1i21_format.immediate_h == 0)
473 return true;
474 }
475
476 switch (ip->reg2i16_format.opcode) {
477 case beq_op:
478 case bne_op:
479 case blt_op:
480 case bge_op:
481 case bltu_op:
482 case bgeu_op:
483 if (ip->reg2i16_format.immediate == 0)
484 return true;
485 break;
486 case jirl_op:
487 if (regs->regs[ip->reg2i16_format.rj] +
488 ((unsigned long)ip->reg2i16_format.immediate << 2) == (unsigned long)ip)
489 return true;
490 }
491
492 return false;
493 }
494
495 void simu_pc(struct pt_regs *regs, union loongarch_instruction insn);
496 void simu_branch(struct pt_regs *regs, union loongarch_instruction insn);
497
498 bool insns_not_supported(union loongarch_instruction insn);
499 bool insns_need_simulation(union loongarch_instruction insn);
500 void arch_simulate_insn(union loongarch_instruction insn, struct pt_regs *regs);
501
502 int larch_insn_read(void *addr, u32 *insnp);
503 int larch_insn_write(void *addr, u32 insn);
504 int larch_insn_patch_text(void *addr, u32 insn);
505 int larch_insn_text_copy(void *dst, void *src, size_t len);
506
507 u32 larch_insn_gen_nop(void);
508 u32 larch_insn_gen_b(unsigned long pc, unsigned long dest);
509 u32 larch_insn_gen_bl(unsigned long pc, unsigned long dest);
510
511 u32 larch_insn_gen_break(int imm);
512
513 u32 larch_insn_gen_or(enum loongarch_gpr rd, enum loongarch_gpr rj, enum loongarch_gpr rk);
514 u32 larch_insn_gen_move(enum loongarch_gpr rd, enum loongarch_gpr rj);
515
516 u32 larch_insn_gen_lu12iw(enum loongarch_gpr rd, int imm);
517 u32 larch_insn_gen_lu32id(enum loongarch_gpr rd, int imm);
518 u32 larch_insn_gen_lu52id(enum loongarch_gpr rd, enum loongarch_gpr rj, int imm);
519 u32 larch_insn_gen_beq(enum loongarch_gpr rd, enum loongarch_gpr rj, int imm);
520 u32 larch_insn_gen_bne(enum loongarch_gpr rd, enum loongarch_gpr rj, int imm);
521 u32 larch_insn_gen_jirl(enum loongarch_gpr rd, enum loongarch_gpr rj, int imm);
522
signed_imm_check(long val,unsigned int bit)523 static inline bool signed_imm_check(long val, unsigned int bit)
524 {
525 return -(1L << (bit - 1)) <= val && val < (1L << (bit - 1));
526 }
527
unsigned_imm_check(unsigned long val,unsigned int bit)528 static inline bool unsigned_imm_check(unsigned long val, unsigned int bit)
529 {
530 return val < (1UL << bit);
531 }
532
533 #define DEF_EMIT_REG0I15_FORMAT(NAME, OP) \
534 static inline void emit_##NAME(union loongarch_instruction *insn, \
535 int imm) \
536 { \
537 insn->reg0i15_format.opcode = OP; \
538 insn->reg0i15_format.immediate = imm; \
539 }
540
DEF_EMIT_REG0I15_FORMAT(break,break_op)541 DEF_EMIT_REG0I15_FORMAT(break, break_op)
542
543 /* like emit_break(imm) but returns a constant expression */
544 #define __emit_break(imm) ((u32)((imm) | (break_op << 15)))
545
546 #define DEF_EMIT_REG0I26_FORMAT(NAME, OP) \
547 static inline void emit_##NAME(union loongarch_instruction *insn, \
548 int offset) \
549 { \
550 unsigned int immediate_l, immediate_h; \
551 \
552 immediate_l = offset & 0xffff; \
553 offset >>= 16; \
554 immediate_h = offset & 0x3ff; \
555 \
556 insn->reg0i26_format.opcode = OP; \
557 insn->reg0i26_format.immediate_l = immediate_l; \
558 insn->reg0i26_format.immediate_h = immediate_h; \
559 }
560
561 DEF_EMIT_REG0I26_FORMAT(b, b_op)
562 DEF_EMIT_REG0I26_FORMAT(bl, bl_op)
563
564 #define DEF_EMIT_REG1I20_FORMAT(NAME, OP) \
565 static inline void emit_##NAME(union loongarch_instruction *insn, \
566 enum loongarch_gpr rd, int imm) \
567 { \
568 insn->reg1i20_format.opcode = OP; \
569 insn->reg1i20_format.immediate = imm; \
570 insn->reg1i20_format.rd = rd; \
571 }
572
573 DEF_EMIT_REG1I20_FORMAT(lu12iw, lu12iw_op)
574 DEF_EMIT_REG1I20_FORMAT(lu32id, lu32id_op)
575 DEF_EMIT_REG1I20_FORMAT(pcaddu18i, pcaddu18i_op)
576
577 #define DEF_EMIT_REG2_FORMAT(NAME, OP) \
578 static inline void emit_##NAME(union loongarch_instruction *insn, \
579 enum loongarch_gpr rd, \
580 enum loongarch_gpr rj) \
581 { \
582 insn->reg2_format.opcode = OP; \
583 insn->reg2_format.rd = rd; \
584 insn->reg2_format.rj = rj; \
585 }
586
587 DEF_EMIT_REG2_FORMAT(revb2h, revb2h_op)
588 DEF_EMIT_REG2_FORMAT(revb2w, revb2w_op)
589 DEF_EMIT_REG2_FORMAT(revbd, revbd_op)
590 DEF_EMIT_REG2_FORMAT(extwh, extwh_op)
591 DEF_EMIT_REG2_FORMAT(extwb, extwb_op)
592
593 #define DEF_EMIT_REG2I5_FORMAT(NAME, OP) \
594 static inline void emit_##NAME(union loongarch_instruction *insn, \
595 enum loongarch_gpr rd, \
596 enum loongarch_gpr rj, \
597 int imm) \
598 { \
599 insn->reg2i5_format.opcode = OP; \
600 insn->reg2i5_format.immediate = imm; \
601 insn->reg2i5_format.rd = rd; \
602 insn->reg2i5_format.rj = rj; \
603 }
604
605 DEF_EMIT_REG2I5_FORMAT(slliw, slliw_op)
606 DEF_EMIT_REG2I5_FORMAT(srliw, srliw_op)
607 DEF_EMIT_REG2I5_FORMAT(sraiw, sraiw_op)
608
609 #define DEF_EMIT_REG2I6_FORMAT(NAME, OP) \
610 static inline void emit_##NAME(union loongarch_instruction *insn, \
611 enum loongarch_gpr rd, \
612 enum loongarch_gpr rj, \
613 int imm) \
614 { \
615 insn->reg2i6_format.opcode = OP; \
616 insn->reg2i6_format.immediate = imm; \
617 insn->reg2i6_format.rd = rd; \
618 insn->reg2i6_format.rj = rj; \
619 }
620
621 DEF_EMIT_REG2I6_FORMAT(sllid, sllid_op)
622 DEF_EMIT_REG2I6_FORMAT(srlid, srlid_op)
623 DEF_EMIT_REG2I6_FORMAT(sraid, sraid_op)
624
625 #define DEF_EMIT_REG2I12_FORMAT(NAME, OP) \
626 static inline void emit_##NAME(union loongarch_instruction *insn, \
627 enum loongarch_gpr rd, \
628 enum loongarch_gpr rj, \
629 int imm) \
630 { \
631 insn->reg2i12_format.opcode = OP; \
632 insn->reg2i12_format.immediate = imm; \
633 insn->reg2i12_format.rd = rd; \
634 insn->reg2i12_format.rj = rj; \
635 }
636
637 DEF_EMIT_REG2I12_FORMAT(addiw, addiw_op)
638 DEF_EMIT_REG2I12_FORMAT(addid, addid_op)
639 DEF_EMIT_REG2I12_FORMAT(lu52id, lu52id_op)
640 DEF_EMIT_REG2I12_FORMAT(andi, andi_op)
641 DEF_EMIT_REG2I12_FORMAT(ori, ori_op)
642 DEF_EMIT_REG2I12_FORMAT(xori, xori_op)
643 DEF_EMIT_REG2I12_FORMAT(ldb, ldb_op)
644 DEF_EMIT_REG2I12_FORMAT(ldh, ldh_op)
645 DEF_EMIT_REG2I12_FORMAT(ldw, ldw_op)
646 DEF_EMIT_REG2I12_FORMAT(ldbu, ldbu_op)
647 DEF_EMIT_REG2I12_FORMAT(ldhu, ldhu_op)
648 DEF_EMIT_REG2I12_FORMAT(ldwu, ldwu_op)
649 DEF_EMIT_REG2I12_FORMAT(ldd, ldd_op)
650 DEF_EMIT_REG2I12_FORMAT(stb, stb_op)
651 DEF_EMIT_REG2I12_FORMAT(sth, sth_op)
652 DEF_EMIT_REG2I12_FORMAT(stw, stw_op)
653 DEF_EMIT_REG2I12_FORMAT(std, std_op)
654
655 #define DEF_EMIT_REG2I14_FORMAT(NAME, OP) \
656 static inline void emit_##NAME(union loongarch_instruction *insn, \
657 enum loongarch_gpr rd, \
658 enum loongarch_gpr rj, \
659 int imm) \
660 { \
661 insn->reg2i14_format.opcode = OP; \
662 insn->reg2i14_format.immediate = imm; \
663 insn->reg2i14_format.rd = rd; \
664 insn->reg2i14_format.rj = rj; \
665 }
666
667 DEF_EMIT_REG2I14_FORMAT(llw, llw_op)
668 DEF_EMIT_REG2I14_FORMAT(scw, scw_op)
669 DEF_EMIT_REG2I14_FORMAT(lld, lld_op)
670 DEF_EMIT_REG2I14_FORMAT(scd, scd_op)
671 DEF_EMIT_REG2I14_FORMAT(ldptrw, ldptrw_op)
672 DEF_EMIT_REG2I14_FORMAT(stptrw, stptrw_op)
673 DEF_EMIT_REG2I14_FORMAT(ldptrd, ldptrd_op)
674 DEF_EMIT_REG2I14_FORMAT(stptrd, stptrd_op)
675
676 #define DEF_EMIT_REG2I16_FORMAT(NAME, OP) \
677 static inline void emit_##NAME(union loongarch_instruction *insn, \
678 enum loongarch_gpr rj, \
679 enum loongarch_gpr rd, \
680 int offset) \
681 { \
682 insn->reg2i16_format.opcode = OP; \
683 insn->reg2i16_format.immediate = offset; \
684 insn->reg2i16_format.rj = rj; \
685 insn->reg2i16_format.rd = rd; \
686 }
687
688 DEF_EMIT_REG2I16_FORMAT(beq, beq_op)
689 DEF_EMIT_REG2I16_FORMAT(bne, bne_op)
690 DEF_EMIT_REG2I16_FORMAT(blt, blt_op)
691 DEF_EMIT_REG2I16_FORMAT(bge, bge_op)
692 DEF_EMIT_REG2I16_FORMAT(bltu, bltu_op)
693 DEF_EMIT_REG2I16_FORMAT(bgeu, bgeu_op)
694
695 static inline void emit_jirl(union loongarch_instruction *insn,
696 enum loongarch_gpr rd,
697 enum loongarch_gpr rj,
698 int offset)
699 {
700 insn->reg2i16_format.opcode = jirl_op;
701 insn->reg2i16_format.immediate = offset;
702 insn->reg2i16_format.rd = rd;
703 insn->reg2i16_format.rj = rj;
704 }
705
706 #define DEF_EMIT_REG2BSTRD_FORMAT(NAME, OP) \
707 static inline void emit_##NAME(union loongarch_instruction *insn, \
708 enum loongarch_gpr rd, \
709 enum loongarch_gpr rj, \
710 int msbd, \
711 int lsbd) \
712 { \
713 insn->reg2bstrd_format.opcode = OP; \
714 insn->reg2bstrd_format.msbd = msbd; \
715 insn->reg2bstrd_format.lsbd = lsbd; \
716 insn->reg2bstrd_format.rj = rj; \
717 insn->reg2bstrd_format.rd = rd; \
718 }
719
720 DEF_EMIT_REG2BSTRD_FORMAT(bstrpickd, bstrpickd_op)
721
722 #define DEF_EMIT_REG3_FORMAT(NAME, OP) \
723 static inline void emit_##NAME(union loongarch_instruction *insn, \
724 enum loongarch_gpr rd, \
725 enum loongarch_gpr rj, \
726 enum loongarch_gpr rk) \
727 { \
728 insn->reg3_format.opcode = OP; \
729 insn->reg3_format.rd = rd; \
730 insn->reg3_format.rj = rj; \
731 insn->reg3_format.rk = rk; \
732 }
733
734 DEF_EMIT_REG3_FORMAT(addw, addw_op)
735 DEF_EMIT_REG3_FORMAT(addd, addd_op)
736 DEF_EMIT_REG3_FORMAT(subd, subd_op)
737 DEF_EMIT_REG3_FORMAT(muld, muld_op)
738 DEF_EMIT_REG3_FORMAT(divd, divd_op)
739 DEF_EMIT_REG3_FORMAT(modd, modd_op)
740 DEF_EMIT_REG3_FORMAT(divdu, divdu_op)
741 DEF_EMIT_REG3_FORMAT(moddu, moddu_op)
742 DEF_EMIT_REG3_FORMAT(and, and_op)
743 DEF_EMIT_REG3_FORMAT(or, or_op)
744 DEF_EMIT_REG3_FORMAT(xor, xor_op)
745 DEF_EMIT_REG3_FORMAT(sllw, sllw_op)
746 DEF_EMIT_REG3_FORMAT(slld, slld_op)
747 DEF_EMIT_REG3_FORMAT(srlw, srlw_op)
748 DEF_EMIT_REG3_FORMAT(srld, srld_op)
749 DEF_EMIT_REG3_FORMAT(sraw, sraw_op)
750 DEF_EMIT_REG3_FORMAT(srad, srad_op)
751 DEF_EMIT_REG3_FORMAT(ldxb, ldxb_op)
752 DEF_EMIT_REG3_FORMAT(ldxh, ldxh_op)
753 DEF_EMIT_REG3_FORMAT(ldxw, ldxw_op)
754 DEF_EMIT_REG3_FORMAT(ldxbu, ldxbu_op)
755 DEF_EMIT_REG3_FORMAT(ldxhu, ldxhu_op)
756 DEF_EMIT_REG3_FORMAT(ldxwu, ldxwu_op)
757 DEF_EMIT_REG3_FORMAT(ldxd, ldxd_op)
758 DEF_EMIT_REG3_FORMAT(stxb, stxb_op)
759 DEF_EMIT_REG3_FORMAT(stxh, stxh_op)
760 DEF_EMIT_REG3_FORMAT(stxw, stxw_op)
761 DEF_EMIT_REG3_FORMAT(stxd, stxd_op)
762 DEF_EMIT_REG3_FORMAT(amaddw, amaddw_op)
763 DEF_EMIT_REG3_FORMAT(amaddd, amaddd_op)
764 DEF_EMIT_REG3_FORMAT(amandw, amandw_op)
765 DEF_EMIT_REG3_FORMAT(amandd, amandd_op)
766 DEF_EMIT_REG3_FORMAT(amorw, amorw_op)
767 DEF_EMIT_REG3_FORMAT(amord, amord_op)
768 DEF_EMIT_REG3_FORMAT(amxorw, amxorw_op)
769 DEF_EMIT_REG3_FORMAT(amxord, amxord_op)
770 DEF_EMIT_REG3_FORMAT(amswapw, amswapw_op)
771 DEF_EMIT_REG3_FORMAT(amswapd, amswapd_op)
772
773 #define DEF_EMIT_REG3SA2_FORMAT(NAME, OP) \
774 static inline void emit_##NAME(union loongarch_instruction *insn, \
775 enum loongarch_gpr rd, \
776 enum loongarch_gpr rj, \
777 enum loongarch_gpr rk, \
778 int imm) \
779 { \
780 insn->reg3sa2_format.opcode = OP; \
781 insn->reg3sa2_format.immediate = imm; \
782 insn->reg3sa2_format.rd = rd; \
783 insn->reg3sa2_format.rj = rj; \
784 insn->reg3sa2_format.rk = rk; \
785 }
786
787 DEF_EMIT_REG3SA2_FORMAT(alsld, alsld_op)
788
789 struct pt_regs;
790
791 void emulate_load_store_insn(struct pt_regs *regs, void __user *addr, unsigned int *pc);
792 unsigned long unaligned_read(void __user *addr, void *value, unsigned long n, bool sign);
793 unsigned long unaligned_write(void __user *addr, unsigned long value, unsigned long n);
794
795 #endif /* _ASM_INST_H */
796