src/gallium/drivers/freedreno/ir3/instr-a3xx.h

   1 /*
   2  * Copyright (c) 2013 Rob Clark <robdclark@gmail.com>
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  20  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  21  * SOFTWARE.
  22  */
  23
  24 #ifndef INSTR_A3XX_H_
  25 #define INSTR_A3XX_H_
  26
  27 #define PACKED __attribute__((__packed__))
  28
  29 #include <stdint.h>
  30 #include <assert.h>
  31
  32 typedef enum {
  33         /* category 0: */
  34         OPC_NOP = 0,
  35         OPC_BR = 1,
  36         OPC_JUMP = 2,
  37         OPC_CALL = 3,
  38         OPC_RET = 4,
  39         OPC_KILL = 5,
  40         OPC_END = 6,
  41         OPC_EMIT = 7,
  42         OPC_CUT = 8,
  43         OPC_CHMASK = 9,
  44         OPC_CHSH = 10,
  45         OPC_FLOW_REV = 11,
  46
  47         /* category 1: */
  48         /* no opc.. all category 1 are variants of mov */
  49
  50         /* category 2: */
  51         OPC_ADD_F = 0,
  52         OPC_MIN_F = 1,
  53         OPC_MAX_F = 2,
  54         OPC_MUL_F = 3,
  55         OPC_SIGN_F = 4,
  56         OPC_CMPS_F = 5,
  57         OPC_ABSNEG_F = 6,
  58         OPC_CMPV_F = 7,
  59         /* 8 - invalid */
  60         OPC_FLOOR_F = 9,
  61         OPC_CEIL_F = 10,
  62         OPC_RNDNE_F = 11,
  63         OPC_RNDAZ_F = 12,
  64         OPC_TRUNC_F = 13,
  65         /* 14-15 - invalid */
  66         OPC_ADD_U = 16,
  67         OPC_ADD_S = 17,
  68         OPC_SUB_U = 18,
  69         OPC_SUB_S = 19,
  70         OPC_CMPS_U = 20,
  71         OPC_CMPS_S = 21,
  72         OPC_MIN_U = 22,
  73         OPC_MIN_S = 23,
  74         OPC_MAX_U = 24,
  75         OPC_MAX_S = 25,
  76         OPC_ABSNEG_S = 26,
  77         /* 27 - invalid */
  78         OPC_AND_B = 28,
  79         OPC_OR_B = 29,
  80         OPC_NOT_B = 30,
  81         OPC_XOR_B = 31,
  82         /* 32 - invalid */
  83         OPC_CMPV_U = 33,
  84         OPC_CMPV_S = 34,
  85         /* 35-47 - invalid */
  86         OPC_MUL_U = 48,
  87         OPC_MUL_S = 49,
  88         OPC_MULL_U = 50,
  89         OPC_BFREV_B = 51,
  90         OPC_CLZ_S = 52,
  91         OPC_CLZ_B = 53,
  92         OPC_SHL_B = 54,
  93         OPC_SHR_B = 55,
  94         OPC_ASHR_B = 56,
  95         OPC_BARY_F = 57,
  96         OPC_MGEN_B = 58,
  97         OPC_GETBIT_B = 59,
  98         OPC_SETRM = 60,
  99         OPC_CBITS_B = 61,
 100         OPC_SHB = 62,
 101         OPC_MSAD = 63,
 102
 103         /* category 3: */
 104         OPC_MAD_U16 = 0,
 105         OPC_MADSH_U16 = 1,
 106         OPC_MAD_S16 = 2,
 107         OPC_MADSH_M16 = 3,   /* should this be .s16? */
 108         OPC_MAD_U24 = 4,
 109         OPC_MAD_S24 = 5,
 110         OPC_MAD_F16 = 6,
 111         OPC_MAD_F32 = 7,
 112         OPC_SEL_B16 = 8,
 113         OPC_SEL_B32 = 9,
 114         OPC_SEL_S16 = 10,
 115         OPC_SEL_S32 = 11,
 116         OPC_SEL_F16 = 12,
 117         OPC_SEL_F32 = 13,
 118         OPC_SAD_S16 = 14,
 119         OPC_SAD_S32 = 15,
 120
 121         /* category 4: */
 122         OPC_RCP = 0,
 123         OPC_RSQ = 1,
 124         OPC_LOG2 = 2,
 125         OPC_EXP2 = 3,
 126         OPC_SIN = 4,
 127         OPC_COS = 5,
 128         OPC_SQRT = 6,
 129         // 7-63 - invalid
 130
 131         /* category 5: */
 132         OPC_ISAM = 0,
 133         OPC_ISAML = 1,
 134         OPC_ISAMM = 2,
 135         OPC_SAM = 3,
 136         OPC_SAMB = 4,
 137         OPC_SAML = 5,
 138         OPC_SAMGQ = 6,
 139         OPC_GETLOD = 7,
 140         OPC_CONV = 8,
 141         OPC_CONVM = 9,
 142         OPC_GETSIZE = 10,
 143         OPC_GETBUF = 11,
 144         OPC_GETPOS = 12,
 145         OPC_GETINFO = 13,
 146         OPC_DSX = 14,
 147         OPC_DSY = 15,
 148         OPC_GATHER4R = 16,
 149         OPC_GATHER4G = 17,
 150         OPC_GATHER4B = 18,
 151         OPC_GATHER4A = 19,
 152         OPC_SAMGP0 = 20,
 153         OPC_SAMGP1 = 21,
 154         OPC_SAMGP2 = 22,
 155         OPC_SAMGP3 = 23,
 156         OPC_DSXPP_1 = 24,
 157         OPC_DSYPP_1 = 25,
 158         OPC_RGETPOS = 26,
 159         OPC_RGETINFO = 27,
 160
 161         /* category 6: */
 162         OPC_LDG = 0,        /* load-global */
 163         OPC_LDL = 1,
 164         OPC_LDP = 2,
 165         OPC_STG = 3,        /* store-global */
 166         OPC_STL = 4,
 167         OPC_STP = 5,
 168         OPC_STI = 6,
 169         OPC_G2L = 7,
 170         OPC_L2G = 8,
 171         OPC_PREFETCH = 9,
 172         OPC_LDLW = 10,
 173         OPC_STLW = 11,
 174         OPC_RESFMT = 14,
 175         OPC_RESINFO = 15,
 176         OPC_ATOMIC_ADD = 16,
 177         OPC_ATOMIC_SUB = 17,
 178         OPC_ATOMIC_XCHG = 18,
 179         OPC_ATOMIC_INC = 19,
 180         OPC_ATOMIC_DEC = 20,
 181         OPC_ATOMIC_CMPXCHG = 21,
 182         OPC_ATOMIC_MIN = 22,
 183         OPC_ATOMIC_MAX = 23,
 184         OPC_ATOMIC_AND = 24,
 185         OPC_ATOMIC_OR = 25,
 186         OPC_ATOMIC_XOR = 26,
 187         OPC_LDGB_TYPED_4D = 27,
 188         OPC_STGB_4D_4 = 28,
 189         OPC_STIB = 29,
 190         OPC_LDC_4 = 30,
 191         OPC_LDLV = 31,
 192
 193         /* meta instructions (category -1): */
 194         /* placeholder instr to mark shader inputs: */
 195         OPC_META_INPUT = 0,
 196         OPC_META_PHI = 1,
 197         /* The "fan-in" and "fan-out" instructions are used for keeping
 198          * track of instructions that write to multiple dst registers
 199          * (fan-out) like texture sample instructions, or read multiple
 200          * consecutive scalar registers (fan-in) (bary.f, texture samp)
 201          */
 202         OPC_META_FO = 2,
 203         OPC_META_FI = 3,
 204
 205 } opc_t;
 206
 207 typedef enum {
 208         TYPE_F16 = 0,
 209         TYPE_F32 = 1,
 210         TYPE_U16 = 2,
 211         TYPE_U32 = 3,
 212         TYPE_S16 = 4,
 213         TYPE_S32 = 5,
 214         TYPE_U8  = 6,
 215         TYPE_S8  = 7,  // XXX I assume?
 216 } type_t;
 217
 218 static inline uint32_t type_size(type_t type)
 219 {
 220         switch (type) {
 221         case TYPE_F32:
 222         case TYPE_U32:
 223         case TYPE_S32:
 224                 return 32;
 225         case TYPE_F16:
 226         case TYPE_U16:
 227         case TYPE_S16:
 228                 return 16;
 229         case TYPE_U8:
 230         case TYPE_S8:
 231                 return 8;
 232         default:
 233                 assert(0); /* invalid type */
 234                 return 0;
 235         }
 236 }
 237
 238 static inline int type_float(type_t type)
 239 {
 240         return (type == TYPE_F32) || (type == TYPE_F16);
 241 }
 242
 243 static inline int type_uint(type_t type)
 244 {
 245         return (type == TYPE_U32) || (type == TYPE_U16) || (type == TYPE_U8);
 246 }
 247
 248 static inline int type_sint(type_t type)
 249 {
 250         return (type == TYPE_S32) || (type == TYPE_S16) || (type == TYPE_S8);
 251 }
 252
 253 typedef union PACKED {
 254         /* normal gpr or const src register: */
 255         struct PACKED {
 256                 uint32_t comp  : 2;
 257                 uint32_t num   : 10;
 258         };
 259         /* for immediate val: */
 260         int32_t  iim_val   : 11;
 261         /* to make compiler happy: */
 262         uint32_t dummy32;
 263         uint32_t dummy10   : 10;
 264         uint32_t dummy11   : 11;
 265         uint32_t dummy12   : 12;
 266         uint32_t dummy13   : 13;
 267         uint32_t dummy8    : 8;
 268 } reg_t;
 269
 270 /* special registers: */
 271 #define REG_A0 61       /* address register */
 272 #define REG_P0 62       /* predicate register */
 273
 274 static inline int reg_special(reg_t reg)
 275 {
 276         return (reg.num == REG_A0) || (reg.num == REG_P0);
 277 }
 278
 279 typedef struct PACKED {
 280         /* dword0: */
 281         union PACKED {
 282                 struct PACKED {
 283                         int16_t  immed    : 16;
 284                         uint32_t dummy1   : 16;
 285                 } a3xx;
 286                 struct PACKED {
 287                         int32_t  immed    : 20;
 288                         uint32_t dummy1   : 12;
 289                 } a4xx;
 290         };
 291
 292         /* dword1: */
 293         uint32_t dummy2   : 8;
 294         uint32_t repeat   : 3;
 295         uint32_t dummy3   : 1;
 296         uint32_t ss       : 1;
 297         uint32_t dummy4   : 7;
 298         uint32_t inv      : 1;
 299         uint32_t comp     : 2;
 300         uint32_t opc      : 4;
 301         uint32_t jmp_tgt  : 1;
 302         uint32_t sync     : 1;
 303         uint32_t opc_cat  : 3;
 304 } instr_cat0_t;
 305
 306 typedef struct PACKED {
 307         /* dword0: */
 308         union PACKED {
 309                 /* for normal src register: */
 310                 struct PACKED {
 311                         uint32_t src : 11;
 312                         /* at least low bit of pad must be zero or it will
 313                          * look like a address relative src
 314                          */
 315                         uint32_t pad : 21;
 316                 };
 317                 /* for address relative: */
 318                 struct PACKED {
 319                         int32_t  off : 10;
 320                         uint32_t src_rel_c : 1;
 321                         uint32_t src_rel : 1;
 322                         uint32_t unknown : 20;
 323                 };
 324                 /* for immediate: */
 325                 int32_t  iim_val;
 326                 uint32_t uim_val;
 327                 float    fim_val;
 328         };
 329
 330         /* dword1: */
 331         uint32_t dst        : 8;
 332         uint32_t repeat     : 3;
 333         uint32_t src_r      : 1;
 334         uint32_t ss         : 1;
 335         uint32_t ul         : 1;
 336         uint32_t dst_type   : 3;
 337         uint32_t dst_rel    : 1;
 338         uint32_t src_type   : 3;
 339         uint32_t src_c      : 1;
 340         uint32_t src_im     : 1;
 341         uint32_t even       : 1;
 342         uint32_t pos_inf    : 1;
 343         uint32_t must_be_0  : 2;
 344         uint32_t jmp_tgt    : 1;
 345         uint32_t sync       : 1;
 346         uint32_t opc_cat    : 3;
 347 } instr_cat1_t;
 348
 349 typedef struct PACKED {
 350         /* dword0: */
 351         union PACKED {
 352                 struct PACKED {
 353                         uint32_t src1         : 11;
 354                         uint32_t must_be_zero1: 2;
 355                         uint32_t src1_im      : 1;   /* immediate */
 356                         uint32_t src1_neg     : 1;   /* negate */
 357                         uint32_t src1_abs     : 1;   /* absolute value */
 358                 };
 359                 struct PACKED {
 360                         uint32_t src1         : 10;
 361                         uint32_t src1_c       : 1;   /* relative-const */
 362                         uint32_t src1_rel     : 1;   /* relative address */
 363                         uint32_t must_be_zero : 1;
 364                         uint32_t dummy        : 3;
 365                 } rel1;
 366                 struct PACKED {
 367                         uint32_t src1         : 12;
 368                         uint32_t src1_c       : 1;   /* const */
 369                         uint32_t dummy        : 3;
 370                 } c1;
 371         };
 372
 373         union PACKED {
 374                 struct PACKED {
 375                         uint32_t src2         : 11;
 376                         uint32_t must_be_zero2: 2;
 377                         uint32_t src2_im      : 1;   /* immediate */
 378                         uint32_t src2_neg     : 1;   /* negate */
 379                         uint32_t src2_abs     : 1;   /* absolute value */
 380                 };
 381                 struct PACKED {
 382                         uint32_t src2         : 10;
 383                         uint32_t src2_c       : 1;   /* relative-const */
 384                         uint32_t src2_rel     : 1;   /* relative address */
 385                         uint32_t must_be_zero : 1;
 386                         uint32_t dummy        : 3;
 387                 } rel2;
 388                 struct PACKED {
 389                         uint32_t src2         : 12;
 390                         uint32_t src2_c       : 1;   /* const */
 391                         uint32_t dummy        : 3;
 392                 } c2;
 393         };
 394
 395         /* dword1: */
 396         uint32_t dst      : 8;
 397         uint32_t repeat   : 3;
 398         uint32_t src1_r   : 1;
 399         uint32_t ss       : 1;
 400         uint32_t ul       : 1;   /* dunno */
 401         uint32_t dst_half : 1;   /* or widen/narrow.. ie. dst hrN <-> rN */
 402         uint32_t ei       : 1;
 403         uint32_t cond     : 3;
 404         uint32_t src2_r   : 1;
 405         uint32_t full     : 1;   /* not half */
 406         uint32_t opc      : 6;
 407         uint32_t jmp_tgt  : 1;
 408         uint32_t sync     : 1;
 409         uint32_t opc_cat  : 3;
 410 } instr_cat2_t;
 411
 412 typedef struct PACKED {
 413         /* dword0: */
 414         union PACKED {
 415                 struct PACKED {
 416                         uint32_t src1         : 11;
 417                         uint32_t must_be_zero1: 2;
 418                         uint32_t src2_c       : 1;
 419                         uint32_t src1_neg     : 1;
 420                         uint32_t src2_r       : 1;
 421                 };
 422                 struct PACKED {
 423                         uint32_t src1         : 10;
 424                         uint32_t src1_c       : 1;
 425                         uint32_t src1_rel     : 1;
 426                         uint32_t must_be_zero : 1;
 427                         uint32_t dummy        : 3;
 428                 } rel1;
 429                 struct PACKED {
 430                         uint32_t src1         : 12;
 431                         uint32_t src1_c       : 1;
 432                         uint32_t dummy        : 3;
 433                 } c1;
 434         };
 435
 436         union PACKED {
 437                 struct PACKED {
 438                         uint32_t src3         : 11;
 439                         uint32_t must_be_zero2: 2;
 440                         uint32_t src3_r       : 1;
 441                         uint32_t src2_neg     : 1;
 442                         uint32_t src3_neg     : 1;
 443                 };
 444                 struct PACKED {
 445                         uint32_t src3         : 10;
 446                         uint32_t src3_c       : 1;
 447                         uint32_t src3_rel     : 1;
 448                         uint32_t must_be_zero : 1;
 449                         uint32_t dummy        : 3;
 450                 } rel2;
 451                 struct PACKED {
 452                         uint32_t src3         : 12;
 453                         uint32_t src3_c       : 1;
 454                         uint32_t dummy        : 3;
 455                 } c2;
 456         };
 457
 458         /* dword1: */
 459         uint32_t dst      : 8;
 460         uint32_t repeat   : 3;
 461         uint32_t src1_r   : 1;
 462         uint32_t ss       : 1;
 463         uint32_t ul       : 1;
 464         uint32_t dst_half : 1;   /* or widen/narrow.. ie. dst hrN <-> rN */
 465         uint32_t src2     : 8;
 466         uint32_t opc      : 4;
 467         uint32_t jmp_tgt  : 1;
 468         uint32_t sync     : 1;
 469         uint32_t opc_cat  : 3;
 470 } instr_cat3_t;
 471
 472 static inline bool instr_cat3_full(instr_cat3_t *cat3)
 473 {
 474         switch (cat3->opc) {
 475         case OPC_MAD_F16:
 476         case OPC_MAD_U16:
 477         case OPC_MAD_S16:
 478         case OPC_SEL_B16:
 479         case OPC_SEL_S16:
 480         case OPC_SEL_F16:
 481         case OPC_SAD_S16:
 482         case OPC_SAD_S32:  // really??
 483                 return false;
 484         default:
 485                 return true;
 486         }
 487 }
 488
 489 typedef struct PACKED {
 490         /* dword0: */
 491         union PACKED {
 492                 struct PACKED {
 493                         uint32_t src          : 11;
 494                         uint32_t must_be_zero1: 2;
 495                         uint32_t src_im       : 1;   /* immediate */
 496                         uint32_t src_neg      : 1;   /* negate */
 497                         uint32_t src_abs      : 1;   /* absolute value */
 498                 };
 499                 struct PACKED {
 500                         uint32_t src          : 10;
 501                         uint32_t src_c        : 1;   /* relative-const */
 502                         uint32_t src_rel      : 1;   /* relative address */
 503                         uint32_t must_be_zero : 1;
 504                         uint32_t dummy        : 3;
 505                 } rel;
 506                 struct PACKED {
 507                         uint32_t src          : 12;
 508                         uint32_t src_c        : 1;   /* const */
 509                         uint32_t dummy        : 3;
 510                 } c;
 511         };
 512         uint32_t dummy1   : 16;  /* seem to be ignored */
 513
 514         /* dword1: */
 515         uint32_t dst      : 8;
 516         uint32_t repeat   : 3;
 517         uint32_t src_r    : 1;
 518         uint32_t ss       : 1;
 519         uint32_t ul       : 1;
 520         uint32_t dst_half : 1;   /* or widen/narrow.. ie. dst hrN <-> rN */
 521         uint32_t dummy2   : 5;   /* seem to be ignored */
 522         uint32_t full     : 1;   /* not half */
 523         uint32_t opc      : 6;
 524         uint32_t jmp_tgt  : 1;
 525         uint32_t sync     : 1;
 526         uint32_t opc_cat  : 3;
 527 } instr_cat4_t;
 528
 529 typedef struct PACKED {
 530         /* dword0: */
 531         union PACKED {
 532                 /* normal case: */
 533                 struct PACKED {
 534                         uint32_t full     : 1;   /* not half */
 535                         uint32_t src1     : 8;
 536                         uint32_t src2     : 8;
 537                         uint32_t dummy1   : 4;   /* seem to be ignored */
 538                         uint32_t samp     : 4;
 539                         uint32_t tex      : 7;
 540                 } norm;
 541                 /* s2en case: */
 542                 struct PACKED {
 543                         uint32_t full     : 1;   /* not half */
 544                         uint32_t src1     : 8;
 545                         uint32_t src2     : 11;
 546                         uint32_t dummy1   : 1;
 547                         uint32_t src3     : 8;
 548                         uint32_t dummy2   : 3;
 549                 } s2en;
 550                 /* same in either case: */
 551                 // XXX I think, confirm this
 552                 struct PACKED {
 553                         uint32_t full     : 1;   /* not half */
 554                         uint32_t src1     : 8;
 555                         uint32_t pad      : 23;
 556                 };
 557         };
 558
 559         /* dword1: */
 560         uint32_t dst      : 8;
 561         uint32_t wrmask   : 4;   /* write-mask */
 562         uint32_t type     : 3;
 563         uint32_t dummy2   : 1;   /* seems to be ignored */
 564         uint32_t is_3d    : 1;
 565
 566         uint32_t is_a     : 1;
 567         uint32_t is_s     : 1;
 568         uint32_t is_s2en  : 1;
 569         uint32_t is_o     : 1;
 570         uint32_t is_p     : 1;
 571
 572         uint32_t opc      : 5;
 573         uint32_t jmp_tgt  : 1;
 574         uint32_t sync     : 1;
 575         uint32_t opc_cat  : 3;
 576 } instr_cat5_t;
 577
 578 /* dword0 encoding for src_off: [src1 + off], src2: */
 579 typedef struct PACKED {
 580         /* dword0: */
 581         uint32_t mustbe1  : 1;
 582         int32_t  off      : 13;
 583         uint32_t src1     : 8;
 584         uint32_t src1_im  : 1;
 585         uint32_t src2_im  : 1;
 586         uint32_t src2     : 8;
 587
 588         /* dword1: */
 589         uint32_t dword1;
 590 } instr_cat6a_t;
 591
 592 /* dword0 encoding for !src_off: [src1], src2 */
 593 typedef struct PACKED {
 594         /* dword0: */
 595         uint32_t mustbe0  : 1;
 596         uint32_t src1     : 13;
 597         uint32_t ignore0  : 8;
 598         uint32_t src1_im  : 1;
 599         uint32_t src2_im  : 1;
 600         uint32_t src2     : 8;
 601
 602         /* dword1: */
 603         uint32_t dword1;
 604 } instr_cat6b_t;
 605
 606 /* dword1 encoding for dst_off: */
 607 typedef struct PACKED {
 608         /* dword0: */
 609         uint32_t dword0;
 610
 611         /* note: there is some weird stuff going on where sometimes
 612          * cat6->a.off is involved.. but that seems like a bug in
 613          * the blob, since it is used even if !cat6->src_off
 614          * It would make sense for there to be some more bits to
 615          * bring us to 11 bits worth of offset, but not sure..
 616          */
 617         int32_t off       : 8;
 618         uint32_t mustbe1  : 1;
 619         uint32_t dst      : 8;
 620         uint32_t pad1     : 15;
 621 } instr_cat6c_t;
 622
 623 /* dword1 encoding for !dst_off: */
 624 typedef struct PACKED {
 625         /* dword0: */
 626         uint32_t dword0;
 627
 628         uint32_t dst      : 8;
 629         uint32_t mustbe0  : 1;
 630         uint32_t pad0     : 23;
 631 } instr_cat6d_t;
 632
 633 /* I think some of the other cat6 instructions use additional
 634  * sub-encodings..
 635  */
 636
 637 typedef union PACKED {
 638         instr_cat6a_t a;
 639         instr_cat6b_t b;
 640         instr_cat6c_t c;
 641         instr_cat6d_t d;
 642         struct PACKED {
 643                 /* dword0: */
 644                 uint32_t src_off  : 1;
 645                 uint32_t pad1     : 31;
 646
 647                 /* dword1: */
 648                 uint32_t pad2     : 8;
 649                 uint32_t dst_off  : 1;
 650                 uint32_t pad3     : 8;
 651                 uint32_t type     : 3;
 652                 uint32_t g        : 1;  /* or in some cases it means dst immed */
 653                 uint32_t pad4     : 1;
 654                 uint32_t opc      : 5;
 655                 uint32_t jmp_tgt  : 1;
 656                 uint32_t sync     : 1;
 657                 uint32_t opc_cat  : 3;
 658         };
 659 } instr_cat6_t;
 660
 661 typedef union PACKED {
 662         instr_cat0_t cat0;
 663         instr_cat1_t cat1;
 664         instr_cat2_t cat2;
 665         instr_cat3_t cat3;
 666         instr_cat4_t cat4;
 667         instr_cat5_t cat5;
 668         instr_cat6_t cat6;
 669         struct PACKED {
 670                 /* dword0: */
 671                 uint64_t pad1     : 40;
 672                 uint32_t repeat   : 3;  /* cat0-cat4 */
 673                 uint32_t pad2     : 1;
 674                 uint32_t ss       : 1;  /* cat1-cat4 (cat0??) */
 675                 uint32_t ul       : 1;  /* cat2-cat4 (and cat1 in blob.. which may be bug??) */
 676                 uint32_t pad3     : 13;
 677                 uint32_t jmp_tgt  : 1;
 678                 uint32_t sync     : 1;
 679                 uint32_t opc_cat  : 3;
 680
 681         };
 682 } instr_t;
 683
 684 static inline uint32_t instr_opc(instr_t *instr)
 685 {
 686         switch (instr->opc_cat) {
 687         case 0:  return instr->cat0.opc;
 688         case 1:  return 0;
 689         case 2:  return instr->cat2.opc;
 690         case 3:  return instr->cat3.opc;
 691         case 4:  return instr->cat4.opc;
 692         case 5:  return instr->cat5.opc;
 693         case 6:  return instr->cat6.opc;
 694         default: return 0;
 695         }
 696 }
 697
 698 static inline bool is_mad(opc_t opc)
 699 {
 700         switch (opc) {
 701         case OPC_MAD_U16:
 702         case OPC_MAD_S16:
 703         case OPC_MAD_U24:
 704         case OPC_MAD_S24:
 705         case OPC_MAD_F16:
 706         case OPC_MAD_F32:
 707                 return true;
 708         default:
 709                 return false;
 710         }
 711 }
 712
 713 static inline bool is_madsh(opc_t opc)
 714 {
 715         switch (opc) {
 716         case OPC_MADSH_U16:
 717         case OPC_MADSH_M16:
 718                 return true;
 719         default:
 720                 return false;
 721         }
 722 }
 723
 724 #endif /* INSTR_A3XX_H_ */