arch/mips/mm/uasm.c

   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 };
  29
  30 #define OP_MASK         0x3f
  31 #define OP_SH           26
  32 #define RD_MASK         0x1f
  33 #define RD_SH           11
  34 #define RE_MASK         0x1f
  35 #define RE_SH           6
  36 #define IMM_MASK        0xffff
  37 #define IMM_SH          0
  38 #define JIMM_MASK       0x3ffffff
  39 #define JIMM_SH         0
  40 #define FUNC_MASK       0x3f
  41 #define FUNC_SH         0
  42 #define SET_MASK        0x7
  43 #define SET_SH          0
  44
  45 enum opcode {
  46         insn_invalid,
  47         insn_addiu, insn_addu, insn_and, insn_andi, insn_bbit0, insn_bbit1,
  48         insn_beq, insn_beql, insn_bgez, insn_bgezl, insn_bltz, insn_bltzl,
  49         insn_bne, insn_cache, insn_daddiu, insn_daddu, insn_dins, insn_dinsm,
  50         insn_divu, insn_dmfc0, insn_dmtc0, insn_drotr, insn_drotr32, insn_dsll,
  51         insn_dsll32, insn_dsra, insn_dsrl, insn_dsrl32, insn_dsubu, insn_eret,
  52         insn_ext, insn_ins, insn_j, insn_jal, insn_jalr, insn_jr, insn_lb,
  53         insn_ld, insn_ldx, insn_lh, insn_ll, insn_lld, insn_lui, insn_lw,
  54         insn_lwx, insn_mfc0, insn_mfhi, insn_mflo, insn_mtc0, insn_mul,
  55         insn_or, insn_ori, insn_pref, insn_rfe, insn_rotr, insn_sc, insn_scd,
  56         insn_sd, insn_sll, insn_sllv, insn_sltiu, insn_sltu, insn_sra,
  57         insn_srl, insn_srlv, insn_subu, insn_sw, insn_sync, insn_syscall,
  58         insn_tlbp, insn_tlbr, insn_tlbwi, insn_tlbwr, insn_wait, insn_wsbh,
  59         insn_xor, insn_xori, insn_yield,
  60 };
  61
  62 struct insn {
  63         enum opcode opcode;
  64         u32 match;
  65         enum fields fields;
  66 };
  67
  68 static inline u32 build_rs(u32 arg)
  69 {
  70         WARN(arg & ~RS_MASK, KERN_WARNING "Micro-assembler field overflow\n");
  71
  72         return (arg & RS_MASK) << RS_SH;
  73 }
  74
  75 static inline u32 build_rt(u32 arg)
  76 {
  77         WARN(arg & ~RT_MASK, KERN_WARNING "Micro-assembler field overflow\n");
  78
  79         return (arg & RT_MASK) << RT_SH;
  80 }
  81
  82 static inline u32 build_rd(u32 arg)
  83 {
  84         WARN(arg & ~RD_MASK, KERN_WARNING "Micro-assembler field overflow\n");
  85
  86         return (arg & RD_MASK) << RD_SH;
  87 }
  88
  89 static inline u32 build_re(u32 arg)
  90 {
  91         WARN(arg & ~RE_MASK, KERN_WARNING "Micro-assembler field overflow\n");
  92
  93         return (arg & RE_MASK) << RE_SH;
  94 }
  95
  96 static inline u32 build_simm(s32 arg)
  97 {
  98         WARN(arg > 0x7fff || arg < -0x8000,
  99              KERN_WARNING "Micro-assembler field overflow\n");
 100
 101         return arg & 0xffff;
 102 }
 103
 104 static inline u32 build_uimm(u32 arg)
 105 {
 106         WARN(arg & ~IMM_MASK, KERN_WARNING "Micro-assembler field overflow\n");
 107
 108         return arg & IMM_MASK;
 109 }
 110
 111 static inline u32 build_scimm(u32 arg)
 112 {
 113         WARN(arg & ~SCIMM_MASK,
 114              KERN_WARNING "Micro-assembler field overflow\n");
 115
 116         return (arg & SCIMM_MASK) << SCIMM_SH;
 117 }
 118
 119 static inline u32 build_func(u32 arg)
 120 {
 121         WARN(arg & ~FUNC_MASK, KERN_WARNING "Micro-assembler field overflow\n");
 122
 123         return arg & FUNC_MASK;
 124 }
 125
 126 static inline u32 build_set(u32 arg)
 127 {
 128         WARN(arg & ~SET_MASK, KERN_WARNING "Micro-assembler field overflow\n");
 129
 130         return arg & SET_MASK;
 131 }
 132
 133 static void build_insn(u32 **buf, enum opcode opc, ...);
 134
 135 #define I_u1u2u3(op)                                    \
 136 Ip_u1u2u3(op)                                           \
 137 {                                                       \
 138         build_insn(buf, insn##op, a, b, c);             \
 139 }                                                       \
 140 UASM_EXPORT_SYMBOL(uasm_i##op);
 141
 142 #define I_s3s1s2(op)                                    \
 143 Ip_s3s1s2(op)                                           \
 144 {                                                       \
 145         build_insn(buf, insn##op, b, c, a);             \
 146 }                                                       \
 147 UASM_EXPORT_SYMBOL(uasm_i##op);
 148
 149 #define I_u2u1u3(op)                                    \
 150 Ip_u2u1u3(op)                                           \
 151 {                                                       \
 152         build_insn(buf, insn##op, b, a, c);             \
 153 }                                                       \
 154 UASM_EXPORT_SYMBOL(uasm_i##op);
 155
 156 #define I_u3u2u1(op)                                    \
 157 Ip_u3u2u1(op)                                           \
 158 {                                                       \
 159         build_insn(buf, insn##op, c, b, a);             \
 160 }                                                       \
 161 UASM_EXPORT_SYMBOL(uasm_i##op);
 162
 163 #define I_u3u1u2(op)                                    \
 164 Ip_u3u1u2(op)                                           \
 165 {                                                       \
 166         build_insn(buf, insn##op, b, c, a);             \
 167 }                                                       \
 168 UASM_EXPORT_SYMBOL(uasm_i##op);
 169
 170 #define I_u1u2s3(op)                                    \
 171 Ip_u1u2s3(op)                                           \
 172 {                                                       \
 173         build_insn(buf, insn##op, a, b, c);             \
 174 }                                                       \
 175 UASM_EXPORT_SYMBOL(uasm_i##op);
 176
 177 #define I_u2s3u1(op)                                    \
 178 Ip_u2s3u1(op)                                           \
 179 {                                                       \
 180         build_insn(buf, insn##op, c, a, b);             \
 181 }                                                       \
 182 UASM_EXPORT_SYMBOL(uasm_i##op);
 183
 184 #define I_u2u1s3(op)                                    \
 185 Ip_u2u1s3(op)                                           \
 186 {                                                       \
 187         build_insn(buf, insn##op, b, a, c);             \
 188 }                                                       \
 189 UASM_EXPORT_SYMBOL(uasm_i##op);
 190
 191 #define I_u2u1msbu3(op)                                 \
 192 Ip_u2u1msbu3(op)                                        \
 193 {                                                       \
 194         build_insn(buf, insn##op, b, a, c+d-1, c);      \
 195 }                                                       \
 196 UASM_EXPORT_SYMBOL(uasm_i##op);
 197
 198 #define I_u2u1msb32u3(op)                               \
 199 Ip_u2u1msbu3(op)                                        \
 200 {                                                       \
 201         build_insn(buf, insn##op, b, a, c+d-33, c);     \
 202 }                                                       \
 203 UASM_EXPORT_SYMBOL(uasm_i##op);
 204
 205 #define I_u2u1msbdu3(op)                                \
 206 Ip_u2u1msbu3(op)                                        \
 207 {                                                       \
 208         build_insn(buf, insn##op, b, a, d-1, c);        \
 209 }                                                       \
 210 UASM_EXPORT_SYMBOL(uasm_i##op);
 211
 212 #define I_u1u2(op)                                      \
 213 Ip_u1u2(op)                                             \
 214 {                                                       \
 215         build_insn(buf, insn##op, a, b);                \
 216 }                                                       \
 217 UASM_EXPORT_SYMBOL(uasm_i##op);
 218
 219 #define I_u2u1(op)                                      \
 220 Ip_u1u2(op)                                             \
 221 {                                                       \
 222         build_insn(buf, insn##op, b, a);                \
 223 }                                                       \
 224 UASM_EXPORT_SYMBOL(uasm_i##op);
 225
 226 #define I_u1s2(op)                                      \
 227 Ip_u1s2(op)                                             \
 228 {                                                       \
 229         build_insn(buf, insn##op, a, b);                \
 230 }                                                       \
 231 UASM_EXPORT_SYMBOL(uasm_i##op);
 232
 233 #define I_u1(op)                                        \
 234 Ip_u1(op)                                               \
 235 {                                                       \
 236         build_insn(buf, insn##op, a);                   \
 237 }                                                       \
 238 UASM_EXPORT_SYMBOL(uasm_i##op);
 239
 240 #define I_0(op)                                         \
 241 Ip_0(op)                                                \
 242 {                                                       \
 243         build_insn(buf, insn##op);                      \
 244 }                                                       \
 245 UASM_EXPORT_SYMBOL(uasm_i##op);
 246
 247 I_u2u1s3(_addiu)
 248 I_u3u1u2(_addu)
 249 I_u2u1u3(_andi)
 250 I_u3u1u2(_and)
 251 I_u1u2s3(_beq)
 252 I_u1u2s3(_beql)
 253 I_u1s2(_bgez)
 254 I_u1s2(_bgezl)
 255 I_u1s2(_bltz)
 256 I_u1s2(_bltzl)
 257 I_u1u2s3(_bne)
 258 I_u2s3u1(_cache)
 259 I_u1u2u3(_dmfc0)
 260 I_u1u2u3(_dmtc0)
 261 I_u2u1s3(_daddiu)
 262 I_u3u1u2(_daddu)
 263 I_u1u2(_divu)
 264 I_u2u1u3(_dsll)
 265 I_u2u1u3(_dsll32)
 266 I_u2u1u3(_dsra)
 267 I_u2u1u3(_dsrl)
 268 I_u2u1u3(_dsrl32)
 269 I_u2u1u3(_drotr)
 270 I_u2u1u3(_drotr32)
 271 I_u3u1u2(_dsubu)
 272 I_0(_eret)
 273 I_u2u1msbdu3(_ext)
 274 I_u2u1msbu3(_ins)
 275 I_u1(_j)
 276 I_u1(_jal)
 277 I_u2u1(_jalr)
 278 I_u1(_jr)
 279 I_u2s3u1(_lb)
 280 I_u2s3u1(_ld)
 281 I_u2s3u1(_lh)
 282 I_u2s3u1(_ll)
 283 I_u2s3u1(_lld)
 284 I_u1s2(_lui)
 285 I_u2s3u1(_lw)
 286 I_u1u2u3(_mfc0)
 287 I_u1(_mfhi)
 288 I_u1(_mflo)
 289 I_u1u2u3(_mtc0)
 290 I_u3u1u2(_mul)
 291 I_u2u1u3(_ori)
 292 I_u3u1u2(_or)
 293 I_0(_rfe)
 294 I_u2s3u1(_sc)
 295 I_u2s3u1(_scd)
 296 I_u2s3u1(_sd)
 297 I_u2u1u3(_sll)
 298 I_u3u2u1(_sllv)
 299 I_u2u1s3(_sltiu)
 300 I_u3u1u2(_sltu)
 301 I_u2u1u3(_sra)
 302 I_u2u1u3(_srl)
 303 I_u3u2u1(_srlv)
 304 I_u2u1u3(_rotr)
 305 I_u3u1u2(_subu)
 306 I_u2s3u1(_sw)
 307 I_u1(_sync)
 308 I_0(_tlbp)
 309 I_0(_tlbr)
 310 I_0(_tlbwi)
 311 I_0(_tlbwr)
 312 I_u1(_wait);
 313 I_u2u1(_wsbh)
 314 I_u3u1u2(_xor)
 315 I_u2u1u3(_xori)
 316 I_u2u1(_yield)
 317 I_u2u1msbu3(_dins);
 318 I_u2u1msb32u3(_dinsm);
 319 I_u1(_syscall);
 320 I_u1u2s3(_bbit0);
 321 I_u1u2s3(_bbit1);
 322 I_u3u1u2(_lwx)
 323 I_u3u1u2(_ldx)
 324
 325 #ifdef CONFIG_CPU_CAVIUM_OCTEON
 326 #include <asm/octeon/octeon.h>
 327 void ISAFUNC(uasm_i_pref)(u32 **buf, unsigned int a, signed int b,
 328                             unsigned int c)
 329 {
 330         if (OCTEON_IS_MODEL(OCTEON_CN63XX_PASS1_X) && a <= 24 && a != 5)
 331                 /*
 332                  * As per erratum Core-14449, replace prefetches 0-4,
 333                  * 6-24 with 'pref 28'.
 334                  */
 335                 build_insn(buf, insn_pref, c, 28, b);
 336         else
 337                 build_insn(buf, insn_pref, c, a, b);
 338 }
 339 UASM_EXPORT_SYMBOL(ISAFUNC(uasm_i_pref));
 340 #else
 341 I_u2s3u1(_pref)
 342 #endif
 343
 344 /* Handle labels. */
 345 void ISAFUNC(uasm_build_label)(struct uasm_label **lab, u32 *addr, int lid)
 346 {
 347         (*lab)->addr = addr;
 348         (*lab)->lab = lid;
 349         (*lab)++;
 350 }
 351 UASM_EXPORT_SYMBOL(ISAFUNC(uasm_build_label));
 352
 353 int ISAFUNC(uasm_in_compat_space_p)(long addr)
 354 {
 355         /* Is this address in 32bit compat space? */
 356 #ifdef CONFIG_64BIT
 357         return (((addr) & 0xffffffff00000000L) == 0xffffffff00000000L);
 358 #else
 359         return 1;
 360 #endif
 361 }
 362 UASM_EXPORT_SYMBOL(ISAFUNC(uasm_in_compat_space_p));
 363
 364 static int uasm_rel_highest(long val)
 365 {
 366 #ifdef CONFIG_64BIT
 367         return ((((val + 0x800080008000L) >> 48) & 0xffff) ^ 0x8000) - 0x8000;
 368 #else
 369         return 0;
 370 #endif
 371 }
 372
 373 static int uasm_rel_higher(long val)
 374 {
 375 #ifdef CONFIG_64BIT
 376         return ((((val + 0x80008000L) >> 32) & 0xffff) ^ 0x8000) - 0x8000;
 377 #else
 378         return 0;
 379 #endif
 380 }
 381
 382 int ISAFUNC(uasm_rel_hi)(long val)
 383 {
 384         return ((((val + 0x8000L) >> 16) & 0xffff) ^ 0x8000) - 0x8000;
 385 }
 386 UASM_EXPORT_SYMBOL(ISAFUNC(uasm_rel_hi));
 387
 388 int ISAFUNC(uasm_rel_lo)(long val)
 389 {
 390         return ((val & 0xffff) ^ 0x8000) - 0x8000;
 391 }
 392 UASM_EXPORT_SYMBOL(ISAFUNC(uasm_rel_lo));
 393
 394 void ISAFUNC(UASM_i_LA_mostly)(u32 **buf, unsigned int rs, long addr)
 395 {
 396         if (!ISAFUNC(uasm_in_compat_space_p)(addr)) {
 397                 ISAFUNC(uasm_i_lui)(buf, rs, uasm_rel_highest(addr));
 398                 if (uasm_rel_higher(addr))
 399                         ISAFUNC(uasm_i_daddiu)(buf, rs, rs, uasm_rel_higher(addr));
 400                 if (ISAFUNC(uasm_rel_hi(addr))) {
 401                         ISAFUNC(uasm_i_dsll)(buf, rs, rs, 16);
 402                         ISAFUNC(uasm_i_daddiu)(buf, rs, rs,
 403                                         ISAFUNC(uasm_rel_hi)(addr));
 404                         ISAFUNC(uasm_i_dsll)(buf, rs, rs, 16);
 405                 } else
 406                         ISAFUNC(uasm_i_dsll32)(buf, rs, rs, 0);
 407         } else
 408                 ISAFUNC(uasm_i_lui)(buf, rs, ISAFUNC(uasm_rel_hi(addr)));
 409 }
 410 UASM_EXPORT_SYMBOL(ISAFUNC(UASM_i_LA_mostly));
 411
 412 void ISAFUNC(UASM_i_LA)(u32 **buf, unsigned int rs, long addr)
 413 {
 414         ISAFUNC(UASM_i_LA_mostly)(buf, rs, addr);
 415         if (ISAFUNC(uasm_rel_lo(addr))) {
 416                 if (!ISAFUNC(uasm_in_compat_space_p)(addr))
 417                         ISAFUNC(uasm_i_daddiu)(buf, rs, rs,
 418                                         ISAFUNC(uasm_rel_lo(addr)));
 419                 else
 420                         ISAFUNC(uasm_i_addiu)(buf, rs, rs,
 421                                         ISAFUNC(uasm_rel_lo(addr)));
 422         }
 423 }
 424 UASM_EXPORT_SYMBOL(ISAFUNC(UASM_i_LA));
 425
 426 /* Handle relocations. */
 427 void ISAFUNC(uasm_r_mips_pc16)(struct uasm_reloc **rel, u32 *addr, int lid)
 428 {
 429         (*rel)->addr = addr;
 430         (*rel)->type = R_MIPS_PC16;
 431         (*rel)->lab = lid;
 432         (*rel)++;
 433 }
 434 UASM_EXPORT_SYMBOL(ISAFUNC(uasm_r_mips_pc16));
 435
 436 static inline void __resolve_relocs(struct uasm_reloc *rel,
 437                                     struct uasm_label *lab);
 438
 439 void ISAFUNC(uasm_resolve_relocs)(struct uasm_reloc *rel,
 440                                   struct uasm_label *lab)
 441 {
 442         struct uasm_label *l;
 443
 444         for (; rel->lab != UASM_LABEL_INVALID; rel++)
 445                 for (l = lab; l->lab != UASM_LABEL_INVALID; l++)
 446                         if (rel->lab == l->lab)
 447                                 __resolve_relocs(rel, l);
 448 }
 449 UASM_EXPORT_SYMBOL(ISAFUNC(uasm_resolve_relocs));
 450
 451 void ISAFUNC(uasm_move_relocs)(struct uasm_reloc *rel, u32 *first, u32 *end,
 452                                long off)
 453 {
 454         for (; rel->lab != UASM_LABEL_INVALID; rel++)
 455                 if (rel->addr >= first && rel->addr < end)
 456                         rel->addr += off;
 457 }
 458 UASM_EXPORT_SYMBOL(ISAFUNC(uasm_move_relocs));
 459
 460 void ISAFUNC(uasm_move_labels)(struct uasm_label *lab, u32 *first, u32 *end,
 461                                long off)
 462 {
 463         for (; lab->lab != UASM_LABEL_INVALID; lab++)
 464                 if (lab->addr >= first && lab->addr < end)
 465                         lab->addr += off;
 466 }
 467 UASM_EXPORT_SYMBOL(ISAFUNC(uasm_move_labels));
 468
 469 void ISAFUNC(uasm_copy_handler)(struct uasm_reloc *rel, struct uasm_label *lab,
 470                                 u32 *first, u32 *end, u32 *target)
 471 {
 472         long off = (long)(target - first);
 473
 474         memcpy(target, first, (end - first) * sizeof(u32));
 475
 476         ISAFUNC(uasm_move_relocs(rel, first, end, off));
 477         ISAFUNC(uasm_move_labels(lab, first, end, off));
 478 }
 479 UASM_EXPORT_SYMBOL(ISAFUNC(uasm_copy_handler));
 480
 481 int ISAFUNC(uasm_insn_has_bdelay)(struct uasm_reloc *rel, u32 *addr)
 482 {
 483         for (; rel->lab != UASM_LABEL_INVALID; rel++) {
 484                 if (rel->addr == addr
 485                     && (rel->type == R_MIPS_PC16
 486                         || rel->type == R_MIPS_26))
 487                         return 1;
 488         }
 489
 490         return 0;
 491 }
 492 UASM_EXPORT_SYMBOL(ISAFUNC(uasm_insn_has_bdelay));
 493
 494 /* Convenience functions for labeled branches. */
 495 void ISAFUNC(uasm_il_bltz)(u32 **p, struct uasm_reloc **r, unsigned int reg,
 496                            int lid)
 497 {
 498         uasm_r_mips_pc16(r, *p, lid);
 499         ISAFUNC(uasm_i_bltz)(p, reg, 0);
 500 }
 501 UASM_EXPORT_SYMBOL(ISAFUNC(uasm_il_bltz));
 502
 503 void ISAFUNC(uasm_il_b)(u32 **p, struct uasm_reloc **r, int lid)
 504 {
 505         uasm_r_mips_pc16(r, *p, lid);
 506         ISAFUNC(uasm_i_b)(p, 0);
 507 }
 508 UASM_EXPORT_SYMBOL(ISAFUNC(uasm_il_b));
 509
 510 void ISAFUNC(uasm_il_beq)(u32 **p, struct uasm_reloc **r, unsigned int r1,
 511                           unsigned int r2, int lid)
 512 {
 513         uasm_r_mips_pc16(r, *p, lid);
 514         ISAFUNC(uasm_i_beq)(p, r1, r2, 0);
 515 }
 516 UASM_EXPORT_SYMBOL(ISAFUNC(uasm_il_beq));
 517
 518 void ISAFUNC(uasm_il_beqz)(u32 **p, struct uasm_reloc **r, unsigned int reg,
 519                            int lid)
 520 {
 521         uasm_r_mips_pc16(r, *p, lid);
 522         ISAFUNC(uasm_i_beqz)(p, reg, 0);
 523 }
 524 UASM_EXPORT_SYMBOL(ISAFUNC(uasm_il_beqz));
 525
 526 void ISAFUNC(uasm_il_beqzl)(u32 **p, struct uasm_reloc **r, unsigned int reg,
 527                             int lid)
 528 {
 529         uasm_r_mips_pc16(r, *p, lid);
 530         ISAFUNC(uasm_i_beqzl)(p, reg, 0);
 531 }
 532 UASM_EXPORT_SYMBOL(ISAFUNC(uasm_il_beqzl));
 533
 534 void ISAFUNC(uasm_il_bne)(u32 **p, struct uasm_reloc **r, unsigned int reg1,
 535                           unsigned int reg2, int lid)
 536 {
 537         uasm_r_mips_pc16(r, *p, lid);
 538         ISAFUNC(uasm_i_bne)(p, reg1, reg2, 0);
 539 }
 540 UASM_EXPORT_SYMBOL(ISAFUNC(uasm_il_bne));
 541
 542 void ISAFUNC(uasm_il_bnez)(u32 **p, struct uasm_reloc **r, unsigned int reg,
 543                            int lid)
 544 {
 545         uasm_r_mips_pc16(r, *p, lid);
 546         ISAFUNC(uasm_i_bnez)(p, reg, 0);
 547 }
 548 UASM_EXPORT_SYMBOL(ISAFUNC(uasm_il_bnez));
 549
 550 void ISAFUNC(uasm_il_bgezl)(u32 **p, struct uasm_reloc **r, unsigned int reg,
 551                             int lid)
 552 {
 553         uasm_r_mips_pc16(r, *p, lid);
 554         ISAFUNC(uasm_i_bgezl)(p, reg, 0);
 555 }
 556 UASM_EXPORT_SYMBOL(ISAFUNC(uasm_il_bgezl));
 557
 558 void ISAFUNC(uasm_il_bgez)(u32 **p, struct uasm_reloc **r, unsigned int reg,
 559                            int lid)
 560 {
 561         uasm_r_mips_pc16(r, *p, lid);
 562         ISAFUNC(uasm_i_bgez)(p, reg, 0);
 563 }
 564 UASM_EXPORT_SYMBOL(ISAFUNC(uasm_il_bgez));
 565
 566 void ISAFUNC(uasm_il_bbit0)(u32 **p, struct uasm_reloc **r, unsigned int reg,
 567                             unsigned int bit, int lid)
 568 {
 569         uasm_r_mips_pc16(r, *p, lid);
 570         ISAFUNC(uasm_i_bbit0)(p, reg, bit, 0);
 571 }
 572 UASM_EXPORT_SYMBOL(ISAFUNC(uasm_il_bbit0));
 573
 574 void ISAFUNC(uasm_il_bbit1)(u32 **p, struct uasm_reloc **r, unsigned int reg,
 575                             unsigned int bit, int lid)
 576 {
 577         uasm_r_mips_pc16(r, *p, lid);
 578         ISAFUNC(uasm_i_bbit1)(p, reg, bit, 0);
 579 }
 580 UASM_EXPORT_SYMBOL(ISAFUNC(uasm_il_bbit1));