xref: /openbmc/linux/arch/mips/mm/uasm.c (revision dea54fba) 
1 /*
2  * This file is subject to the terms and conditions of the GNU General Public
3  * License.  See the file "COPYING" in the main directory of this archive
4  * for more details.
5  *
6  * A small micro-assembler. It is intentionally kept simple, does only
7  * support a subset of instructions, and does not try to hide pipeline
8  * effects like branch delay slots.
9  *
10  * Copyright (C) 2004, 2005, 2006, 2008	 Thiemo Seufer
11  * Copyright (C) 2005, 2007  Maciej W. Rozycki
12  * Copyright (C) 2006  Ralf Baechle (ralf@linux-mips.org)
13  * Copyright (C) 2012, 2013  MIPS Technologies, Inc.  All rights reserved.
14  */
15 
16 enum fields {
17 	RS = 0x001,
18 	RT = 0x002,
19 	RD = 0x004,
20 	RE = 0x008,
21 	SIMM = 0x010,
22 	UIMM = 0x020,
23 	BIMM = 0x040,
24 	JIMM = 0x080,
25 	FUNC = 0x100,
26 	SET = 0x200,
27 	SCIMM = 0x400,
28 	SIMM9 = 0x800,
29 };
30 
31 #define OP_MASK		0x3f
32 #define OP_SH		26
33 #define RD_MASK		0x1f
34 #define RD_SH		11
35 #define RE_MASK		0x1f
36 #define RE_SH		6
37 #define IMM_MASK	0xffff
38 #define IMM_SH		0
39 #define JIMM_MASK	0x3ffffff
40 #define JIMM_SH		0
41 #define FUNC_MASK	0x3f
42 #define FUNC_SH		0
43 #define SET_MASK	0x7
44 #define SET_SH		0
45 #define SIMM9_SH	7
46 #define SIMM9_MASK	0x1ff
47 
48 enum opcode {
49 	insn_addiu, insn_addu, insn_and, insn_andi, insn_bbit0, insn_bbit1,
50 	insn_beq, insn_beql, insn_bgez, insn_bgezl, insn_bgtz, insn_blez,
51 	insn_bltz, insn_bltzl, insn_bne, insn_break, insn_cache, insn_cfc1,
52 	insn_cfcmsa, insn_ctc1, insn_ctcmsa, insn_daddiu, insn_daddu, insn_ddivu,
53 	insn_di, insn_dins, insn_dinsm, insn_dinsu, insn_divu, insn_dmfc0,
54 	insn_dmtc0, insn_dmultu, insn_drotr, insn_drotr32, insn_dsbh, insn_dshd,
55 	insn_dsll, insn_dsll32, insn_dsllv, insn_dsra, insn_dsra32, insn_dsrav,
56 	insn_dsrl, insn_dsrl32, insn_dsrlv, insn_dsubu, insn_eret, insn_ext,
57 	insn_ins, insn_j, insn_jal, insn_jalr, insn_jr, insn_lb, insn_lbu,
58 	insn_ld, insn_lddir, insn_ldpte, insn_ldx, insn_lh, insn_lhu,
59 	insn_ll, insn_lld, insn_lui, insn_lw, insn_lwu, insn_lwx, insn_mfc0,
60 	insn_mfhc0, insn_mfhi, insn_mflo, insn_movn, insn_movz, insn_mtc0,
61 	insn_mthc0, insn_mthi, insn_mtlo, insn_mul, insn_multu, insn_nor,
62 	insn_or, insn_ori, insn_pref, insn_rfe, insn_rotr, insn_sb,
63 	insn_sc, insn_scd, insn_sd, insn_sh, insn_sll, insn_sllv,
64 	insn_slt, insn_slti, insn_sltiu, insn_sltu, insn_sra, insn_srl,
65 	insn_srlv, insn_subu, insn_sw, insn_sync, insn_syscall, insn_tlbp,
66 	insn_tlbr, insn_tlbwi, insn_tlbwr, insn_wait, insn_wsbh, insn_xor,
67 	insn_xori, insn_yield,
68 	insn_invalid /* insn_invalid must be last */
69 };
70 
71 struct insn {
72 	u32 match;
73 	enum fields fields;
74 };
75 
76 static inline u32 build_rs(u32 arg)
77 {
78 	WARN(arg & ~RS_MASK, KERN_WARNING "Micro-assembler field overflow\n");
79 
80 	return (arg & RS_MASK) << RS_SH;
81 }
82 
83 static inline u32 build_rt(u32 arg)
84 {
85 	WARN(arg & ~RT_MASK, KERN_WARNING "Micro-assembler field overflow\n");
86 
87 	return (arg & RT_MASK) << RT_SH;
88 }
89 
90 static inline u32 build_rd(u32 arg)
91 {
92 	WARN(arg & ~RD_MASK, KERN_WARNING "Micro-assembler field overflow\n");
93 
94 	return (arg & RD_MASK) << RD_SH;
95 }
96 
97 static inline u32 build_re(u32 arg)
98 {
99 	WARN(arg & ~RE_MASK, KERN_WARNING "Micro-assembler field overflow\n");
100 
101 	return (arg & RE_MASK) << RE_SH;
102 }
103 
104 static inline u32 build_simm(s32 arg)
105 {
106 	WARN(arg > 0x7fff || arg < -0x8000,
107 	     KERN_WARNING "Micro-assembler field overflow\n");
108 
109 	return arg & 0xffff;
110 }
111 
112 static inline u32 build_uimm(u32 arg)
113 {
114 	WARN(arg & ~IMM_MASK, KERN_WARNING "Micro-assembler field overflow\n");
115 
116 	return arg & IMM_MASK;
117 }
118 
119 static inline u32 build_scimm(u32 arg)
120 {
121 	WARN(arg & ~SCIMM_MASK,
122 	     KERN_WARNING "Micro-assembler field overflow\n");
123 
124 	return (arg & SCIMM_MASK) << SCIMM_SH;
125 }
126 
127 static inline u32 build_scimm9(s32 arg)
128 {
129 	WARN((arg > 0xff || arg < -0x100),
130 	       KERN_WARNING "Micro-assembler field overflow\n");
131 
132 	return (arg & SIMM9_MASK) << SIMM9_SH;
133 }
134 
135 static inline u32 build_func(u32 arg)
136 {
137 	WARN(arg & ~FUNC_MASK, KERN_WARNING "Micro-assembler field overflow\n");
138 
139 	return arg & FUNC_MASK;
140 }
141 
142 static inline u32 build_set(u32 arg)
143 {
144 	WARN(arg & ~SET_MASK, KERN_WARNING "Micro-assembler field overflow\n");
145 
146 	return arg & SET_MASK;
147 }
148 
149 static void build_insn(u32 **buf, enum opcode opc, ...);
150 
151 #define I_u1u2u3(op)					\
152 Ip_u1u2u3(op)						\
153 {							\
154 	build_insn(buf, insn##op, a, b, c);		\
155 }							\
156 UASM_EXPORT_SYMBOL(uasm_i##op);
157 
158 #define I_s3s1s2(op)					\
159 Ip_s3s1s2(op)						\
160 {							\
161 	build_insn(buf, insn##op, b, c, a);		\
162 }							\
163 UASM_EXPORT_SYMBOL(uasm_i##op);
164 
165 #define I_u2u1u3(op)					\
166 Ip_u2u1u3(op)						\
167 {							\
168 	build_insn(buf, insn##op, b, a, c);		\
169 }							\
170 UASM_EXPORT_SYMBOL(uasm_i##op);
171 
172 #define I_u3u2u1(op)					\
173 Ip_u3u2u1(op)						\
174 {							\
175 	build_insn(buf, insn##op, c, b, a);		\
176 }							\
177 UASM_EXPORT_SYMBOL(uasm_i##op);
178 
179 #define I_u3u1u2(op)					\
180 Ip_u3u1u2(op)						\
181 {							\
182 	build_insn(buf, insn##op, b, c, a);		\
183 }							\
184 UASM_EXPORT_SYMBOL(uasm_i##op);
185 
186 #define I_u1u2s3(op)					\
187 Ip_u1u2s3(op)						\
188 {							\
189 	build_insn(buf, insn##op, a, b, c);		\
190 }							\
191 UASM_EXPORT_SYMBOL(uasm_i##op);
192 
193 #define I_u2s3u1(op)					\
194 Ip_u2s3u1(op)						\
195 {							\
196 	build_insn(buf, insn##op, c, a, b);		\
197 }							\
198 UASM_EXPORT_SYMBOL(uasm_i##op);
199 
200 #define I_u2u1s3(op)					\
201 Ip_u2u1s3(op)						\
202 {							\
203 	build_insn(buf, insn##op, b, a, c);		\
204 }							\
205 UASM_EXPORT_SYMBOL(uasm_i##op);
206 
207 #define I_u2u1msbu3(op)					\
208 Ip_u2u1msbu3(op)					\
209 {							\
210 	build_insn(buf, insn##op, b, a, c+d-1, c);	\
211 }							\
212 UASM_EXPORT_SYMBOL(uasm_i##op);
213 
214 #define I_u2u1msb32u3(op)				\
215 Ip_u2u1msbu3(op)					\
216 {							\
217 	build_insn(buf, insn##op, b, a, c+d-33, c);	\
218 }							\
219 UASM_EXPORT_SYMBOL(uasm_i##op);
220 
221 #define I_u2u1msb32msb3(op)				\
222 Ip_u2u1msbu3(op)					\
223 {							\
224 	build_insn(buf, insn##op, b, a, c+d-33, c-32);	\
225 }							\
226 UASM_EXPORT_SYMBOL(uasm_i##op);
227 
228 #define I_u2u1msbdu3(op)				\
229 Ip_u2u1msbu3(op)					\
230 {							\
231 	build_insn(buf, insn##op, b, a, d-1, c);	\
232 }							\
233 UASM_EXPORT_SYMBOL(uasm_i##op);
234 
235 #define I_u1u2(op)					\
236 Ip_u1u2(op)						\
237 {							\
238 	build_insn(buf, insn##op, a, b);		\
239 }							\
240 UASM_EXPORT_SYMBOL(uasm_i##op);
241 
242 #define I_u2u1(op)					\
243 Ip_u1u2(op)						\
244 {							\
245 	build_insn(buf, insn##op, b, a);		\
246 }							\
247 UASM_EXPORT_SYMBOL(uasm_i##op);
248 
249 #define I_u1s2(op)					\
250 Ip_u1s2(op)						\
251 {							\
252 	build_insn(buf, insn##op, a, b);		\
253 }							\
254 UASM_EXPORT_SYMBOL(uasm_i##op);
255 
256 #define I_u1(op)					\
257 Ip_u1(op)						\
258 {							\
259 	build_insn(buf, insn##op, a);			\
260 }							\
261 UASM_EXPORT_SYMBOL(uasm_i##op);
262 
263 #define I_0(op)						\
264 Ip_0(op)						\
265 {							\
266 	build_insn(buf, insn##op);			\
267 }							\
268 UASM_EXPORT_SYMBOL(uasm_i##op);
269 
270 I_u2u1s3(_addiu)
271 I_u3u1u2(_addu)
272 I_u2u1u3(_andi)
273 I_u3u1u2(_and)
274 I_u1u2s3(_beq)
275 I_u1u2s3(_beql)
276 I_u1s2(_bgez)
277 I_u1s2(_bgezl)
278 I_u1s2(_bgtz)
279 I_u1s2(_blez)
280 I_u1s2(_bltz)
281 I_u1s2(_bltzl)
282 I_u1u2s3(_bne)
283 I_u1(_break)
284 I_u2s3u1(_cache)
285 I_u1u2(_cfc1)
286 I_u2u1(_cfcmsa)
287 I_u1u2(_ctc1)
288 I_u2u1(_ctcmsa)
289 I_u1u2(_ddivu)
290 I_u1u2u3(_dmfc0)
291 I_u1u2u3(_dmtc0)
292 I_u1u2(_dmultu)
293 I_u2u1s3(_daddiu)
294 I_u3u1u2(_daddu)
295 I_u1(_di);
296 I_u1u2(_divu)
297 I_u2u1(_dsbh);
298 I_u2u1(_dshd);
299 I_u2u1u3(_dsll)
300 I_u2u1u3(_dsll32)
301 I_u3u2u1(_dsllv)
302 I_u2u1u3(_dsra)
303 I_u2u1u3(_dsra32)
304 I_u3u2u1(_dsrav)
305 I_u2u1u3(_dsrl)
306 I_u2u1u3(_dsrl32)
307 I_u3u2u1(_dsrlv)
308 I_u2u1u3(_drotr)
309 I_u2u1u3(_drotr32)
310 I_u3u1u2(_dsubu)
311 I_0(_eret)
312 I_u2u1msbdu3(_ext)
313 I_u2u1msbu3(_ins)
314 I_u1(_j)
315 I_u1(_jal)
316 I_u2u1(_jalr)
317 I_u1(_jr)
318 I_u2s3u1(_lb)
319 I_u2s3u1(_lbu)
320 I_u2s3u1(_ld)
321 I_u2s3u1(_lh)
322 I_u2s3u1(_lhu)
323 I_u2s3u1(_ll)
324 I_u2s3u1(_lld)
325 I_u1s2(_lui)
326 I_u2s3u1(_lw)
327 I_u2s3u1(_lwu)
328 I_u1u2u3(_mfc0)
329 I_u1u2u3(_mfhc0)
330 I_u3u1u2(_movn)
331 I_u3u1u2(_movz)
332 I_u1(_mfhi)
333 I_u1(_mflo)
334 I_u1u2u3(_mtc0)
335 I_u1u2u3(_mthc0)
336 I_u1(_mthi)
337 I_u1(_mtlo)
338 I_u3u1u2(_mul)
339 I_u1u2(_multu)
340 I_u3u1u2(_nor)
341 I_u3u1u2(_or)
342 I_u2u1u3(_ori)
343 I_0(_rfe)
344 I_u2s3u1(_sb)
345 I_u2s3u1(_sc)
346 I_u2s3u1(_scd)
347 I_u2s3u1(_sd)
348 I_u2s3u1(_sh)
349 I_u2u1u3(_sll)
350 I_u3u2u1(_sllv)
351 I_s3s1s2(_slt)
352 I_u2u1s3(_slti)
353 I_u2u1s3(_sltiu)
354 I_u3u1u2(_sltu)
355 I_u2u1u3(_sra)
356 I_u2u1u3(_srl)
357 I_u3u2u1(_srlv)
358 I_u2u1u3(_rotr)
359 I_u3u1u2(_subu)
360 I_u2s3u1(_sw)
361 I_u1(_sync)
362 I_0(_tlbp)
363 I_0(_tlbr)
364 I_0(_tlbwi)
365 I_0(_tlbwr)
366 I_u1(_wait);
367 I_u2u1(_wsbh)
368 I_u3u1u2(_xor)
369 I_u2u1u3(_xori)
370 I_u2u1(_yield)
371 I_u2u1msbu3(_dins);
372 I_u2u1msb32u3(_dinsm);
373 I_u2u1msb32msb3(_dinsu);
374 I_u1(_syscall);
375 I_u1u2s3(_bbit0);
376 I_u1u2s3(_bbit1);
377 I_u3u1u2(_lwx)
378 I_u3u1u2(_ldx)
379 I_u1u2(_ldpte)
380 I_u2u1u3(_lddir)
381 
382 #ifdef CONFIG_CPU_CAVIUM_OCTEON
383 #include <asm/octeon/octeon.h>
384 void uasm_i_pref(u32 **buf, unsigned int a, signed int b,
385 			    unsigned int c)
386 {
387 	if (CAVIUM_OCTEON_DCACHE_PREFETCH_WAR && a <= 24 && a != 5)
388 		/*
389 		 * As per erratum Core-14449, replace prefetches 0-4,
390 		 * 6-24 with 'pref 28'.
391 		 */
392 		build_insn(buf, insn_pref, c, 28, b);
393 	else
394 		build_insn(buf, insn_pref, c, a, b);
395 }
396 UASM_EXPORT_SYMBOL(uasm_i_pref);
397 #else
398 I_u2s3u1(_pref)
399 #endif
400 
401 /* Handle labels. */
402 void uasm_build_label(struct uasm_label **lab, u32 *addr, int lid)
403 {
404 	(*lab)->addr = addr;
405 	(*lab)->lab = lid;
406 	(*lab)++;
407 }
408 UASM_EXPORT_SYMBOL(uasm_build_label);
409 
410 int uasm_in_compat_space_p(long addr)
411 {
412 	/* Is this address in 32bit compat space? */
413 	return addr == (int)addr;
414 }
415 UASM_EXPORT_SYMBOL(uasm_in_compat_space_p);
416 
417 static int uasm_rel_highest(long val)
418 {
419 #ifdef CONFIG_64BIT
420 	return ((((val + 0x800080008000L) >> 48) & 0xffff) ^ 0x8000) - 0x8000;
421 #else
422 	return 0;
423 #endif
424 }
425 
426 static int uasm_rel_higher(long val)
427 {
428 #ifdef CONFIG_64BIT
429 	return ((((val + 0x80008000L) >> 32) & 0xffff) ^ 0x8000) - 0x8000;
430 #else
431 	return 0;
432 #endif
433 }
434 
435 int uasm_rel_hi(long val)
436 {
437 	return ((((val + 0x8000L) >> 16) & 0xffff) ^ 0x8000) - 0x8000;
438 }
439 UASM_EXPORT_SYMBOL(uasm_rel_hi);
440 
441 int uasm_rel_lo(long val)
442 {
443 	return ((val & 0xffff) ^ 0x8000) - 0x8000;
444 }
445 UASM_EXPORT_SYMBOL(uasm_rel_lo);
446 
447 void UASM_i_LA_mostly(u32 **buf, unsigned int rs, long addr)
448 {
449 	if (!uasm_in_compat_space_p(addr)) {
450 		uasm_i_lui(buf, rs, uasm_rel_highest(addr));
451 		if (uasm_rel_higher(addr))
452 			uasm_i_daddiu(buf, rs, rs, uasm_rel_higher(addr));
453 		if (uasm_rel_hi(addr)) {
454 			uasm_i_dsll(buf, rs, rs, 16);
455 			uasm_i_daddiu(buf, rs, rs,
456 					uasm_rel_hi(addr));
457 			uasm_i_dsll(buf, rs, rs, 16);
458 		} else
459 			uasm_i_dsll32(buf, rs, rs, 0);
460 	} else
461 		uasm_i_lui(buf, rs, uasm_rel_hi(addr));
462 }
463 UASM_EXPORT_SYMBOL(UASM_i_LA_mostly);
464 
465 void UASM_i_LA(u32 **buf, unsigned int rs, long addr)
466 {
467 	UASM_i_LA_mostly(buf, rs, addr);
468 	if (uasm_rel_lo(addr)) {
469 		if (!uasm_in_compat_space_p(addr))
470 			uasm_i_daddiu(buf, rs, rs,
471 					uasm_rel_lo(addr));
472 		else
473 			uasm_i_addiu(buf, rs, rs,
474 					uasm_rel_lo(addr));
475 	}
476 }
477 UASM_EXPORT_SYMBOL(UASM_i_LA);
478 
479 /* Handle relocations. */
480 void uasm_r_mips_pc16(struct uasm_reloc **rel, u32 *addr, int lid)
481 {
482 	(*rel)->addr = addr;
483 	(*rel)->type = R_MIPS_PC16;
484 	(*rel)->lab = lid;
485 	(*rel)++;
486 }
487 UASM_EXPORT_SYMBOL(uasm_r_mips_pc16);
488 
489 static inline void __resolve_relocs(struct uasm_reloc *rel,
490 				    struct uasm_label *lab);
491 
492 void uasm_resolve_relocs(struct uasm_reloc *rel,
493 				  struct uasm_label *lab)
494 {
495 	struct uasm_label *l;
496 
497 	for (; rel->lab != UASM_LABEL_INVALID; rel++)
498 		for (l = lab; l->lab != UASM_LABEL_INVALID; l++)
499 			if (rel->lab == l->lab)
500 				__resolve_relocs(rel, l);
501 }
502 UASM_EXPORT_SYMBOL(uasm_resolve_relocs);
503 
504 void uasm_move_relocs(struct uasm_reloc *rel, u32 *first, u32 *end,
505 			       long off)
506 {
507 	for (; rel->lab != UASM_LABEL_INVALID; rel++)
508 		if (rel->addr >= first && rel->addr < end)
509 			rel->addr += off;
510 }
511 UASM_EXPORT_SYMBOL(uasm_move_relocs);
512 
513 void uasm_move_labels(struct uasm_label *lab, u32 *first, u32 *end,
514 			       long off)
515 {
516 	for (; lab->lab != UASM_LABEL_INVALID; lab++)
517 		if (lab->addr >= first && lab->addr < end)
518 			lab->addr += off;
519 }
520 UASM_EXPORT_SYMBOL(uasm_move_labels);
521 
522 void uasm_copy_handler(struct uasm_reloc *rel, struct uasm_label *lab,
523 				u32 *first, u32 *end, u32 *target)
524 {
525 	long off = (long)(target - first);
526 
527 	memcpy(target, first, (end - first) * sizeof(u32));
528 
529 	uasm_move_relocs(rel, first, end, off);
530 	uasm_move_labels(lab, first, end, off);
531 }
532 UASM_EXPORT_SYMBOL(uasm_copy_handler);
533 
534 int uasm_insn_has_bdelay(struct uasm_reloc *rel, u32 *addr)
535 {
536 	for (; rel->lab != UASM_LABEL_INVALID; rel++) {
537 		if (rel->addr == addr
538 		    && (rel->type == R_MIPS_PC16
539 			|| rel->type == R_MIPS_26))
540 			return 1;
541 	}
542 
543 	return 0;
544 }
545 UASM_EXPORT_SYMBOL(uasm_insn_has_bdelay);
546 
547 /* Convenience functions for labeled branches. */
548 void uasm_il_bltz(u32 **p, struct uasm_reloc **r, unsigned int reg,
549 			   int lid)
550 {
551 	uasm_r_mips_pc16(r, *p, lid);
552 	uasm_i_bltz(p, reg, 0);
553 }
554 UASM_EXPORT_SYMBOL(uasm_il_bltz);
555 
556 void uasm_il_b(u32 **p, struct uasm_reloc **r, int lid)
557 {
558 	uasm_r_mips_pc16(r, *p, lid);
559 	uasm_i_b(p, 0);
560 }
561 UASM_EXPORT_SYMBOL(uasm_il_b);
562 
563 void uasm_il_beq(u32 **p, struct uasm_reloc **r, unsigned int r1,
564 			  unsigned int r2, int lid)
565 {
566 	uasm_r_mips_pc16(r, *p, lid);
567 	uasm_i_beq(p, r1, r2, 0);
568 }
569 UASM_EXPORT_SYMBOL(uasm_il_beq);
570 
571 void uasm_il_beqz(u32 **p, struct uasm_reloc **r, unsigned int reg,
572 			   int lid)
573 {
574 	uasm_r_mips_pc16(r, *p, lid);
575 	uasm_i_beqz(p, reg, 0);
576 }
577 UASM_EXPORT_SYMBOL(uasm_il_beqz);
578 
579 void uasm_il_beqzl(u32 **p, struct uasm_reloc **r, unsigned int reg,
580 			    int lid)
581 {
582 	uasm_r_mips_pc16(r, *p, lid);
583 	uasm_i_beqzl(p, reg, 0);
584 }
585 UASM_EXPORT_SYMBOL(uasm_il_beqzl);
586 
587 void uasm_il_bne(u32 **p, struct uasm_reloc **r, unsigned int reg1,
588 			  unsigned int reg2, int lid)
589 {
590 	uasm_r_mips_pc16(r, *p, lid);
591 	uasm_i_bne(p, reg1, reg2, 0);
592 }
593 UASM_EXPORT_SYMBOL(uasm_il_bne);
594 
595 void uasm_il_bnez(u32 **p, struct uasm_reloc **r, unsigned int reg,
596 			   int lid)
597 {
598 	uasm_r_mips_pc16(r, *p, lid);
599 	uasm_i_bnez(p, reg, 0);
600 }
601 UASM_EXPORT_SYMBOL(uasm_il_bnez);
602 
603 void uasm_il_bgezl(u32 **p, struct uasm_reloc **r, unsigned int reg,
604 			    int lid)
605 {
606 	uasm_r_mips_pc16(r, *p, lid);
607 	uasm_i_bgezl(p, reg, 0);
608 }
609 UASM_EXPORT_SYMBOL(uasm_il_bgezl);
610 
611 void uasm_il_bgez(u32 **p, struct uasm_reloc **r, unsigned int reg,
612 			   int lid)
613 {
614 	uasm_r_mips_pc16(r, *p, lid);
615 	uasm_i_bgez(p, reg, 0);
616 }
617 UASM_EXPORT_SYMBOL(uasm_il_bgez);
618 
619 void uasm_il_bbit0(u32 **p, struct uasm_reloc **r, unsigned int reg,
620 			    unsigned int bit, int lid)
621 {
622 	uasm_r_mips_pc16(r, *p, lid);
623 	uasm_i_bbit0(p, reg, bit, 0);
624 }
625 UASM_EXPORT_SYMBOL(uasm_il_bbit0);
626 
627 void uasm_il_bbit1(u32 **p, struct uasm_reloc **r, unsigned int reg,
628 			    unsigned int bit, int lid)
629 {
630 	uasm_r_mips_pc16(r, *p, lid);
631 	uasm_i_bbit1(p, reg, bit, 0);
632 }
633 UASM_EXPORT_SYMBOL(uasm_il_bbit1);
634