src/gallium/drivers/i965/brw_disasm.c

   1 /*
   2  * Copyright © 2008 Keith Packard
   3  *
   4  * Permission to use, copy, modify, distribute, and sell this software and its
   5  * documentation for any purpose is hereby granted without fee, provided that
   6  * the above copyright notice appear in all copies and that both that copyright
   7  * notice and this permission notice appear in supporting documentation, and
   8  * that the name of the copyright holders not be used in advertising or
   9  * publicity pertaining to distribution of the software without specific,
  10  * written prior permission.  The copyright holders make no representations
  11  * about the suitability of this software for any purpose.  It is provided "as
  12  * is" without express or implied warranty.
  13  *
  14  * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
  15  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
  16  * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
  17  * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
  18  * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
  19  * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
  20  * OF THIS SOFTWARE.
  21  */
  22
  23 #include <stdio.h>
  24 #include <stdlib.h>
  25 #include <string.h>
  26 #include <unistd.h>
  27 #include <stdarg.h>
  28
  29 #include "brw_disasm.h"
  30 #include "brw_structs.h"
  31 #include "brw_reg.h"
  32 #include "brw_defines.h"
  33
  34 struct {
  35     char    *name;
  36     int     nsrc;
  37     int     ndst;
  38 } opcode[128] = {
  39     [BRW_OPCODE_MOV] = { .name = "mov", .nsrc = 1, .ndst = 1 },
  40     [BRW_OPCODE_FRC] = { .name = "frc", .nsrc = 1, .ndst = 1 },
  41     [BRW_OPCODE_RNDU] = { .name = "rndu", .nsrc = 1, .ndst = 1 },
  42     [BRW_OPCODE_RNDD] = { .name = "rndd", .nsrc = 1, .ndst = 1 },
  43     [BRW_OPCODE_RNDE] = { .name = "rnde", .nsrc = 1, .ndst = 1 },
  44     [BRW_OPCODE_RNDZ] = { .name = "rndz", .nsrc = 1, .ndst = 1 },
  45     [BRW_OPCODE_NOT] = { .name = "not", .nsrc = 1, .ndst = 1 },
  46     [BRW_OPCODE_LZD] = { .name = "lzd", .nsrc = 1, .ndst = 1 },
  47
  48     [BRW_OPCODE_MUL] = { .name = "mul", .nsrc = 2, .ndst = 1 },
  49     [BRW_OPCODE_MAC] = { .name = "mac", .nsrc = 2, .ndst = 1 },
  50     [BRW_OPCODE_MACH] = { .name = "mach", .nsrc = 2, .ndst = 1 },
  51     [BRW_OPCODE_LINE] = { .name = "line", .nsrc = 2, .ndst = 1 },
  52     [BRW_OPCODE_SAD2] = { .name = "sad2", .nsrc = 2, .ndst = 1 },
  53     [BRW_OPCODE_SADA2] = { .name = "sada2", .nsrc = 2, .ndst = 1 },
  54     [BRW_OPCODE_DP4] = { .name = "dp4", .nsrc = 2, .ndst = 1 },
  55     [BRW_OPCODE_DPH] = { .name = "dph", .nsrc = 2, .ndst = 1 },
  56     [BRW_OPCODE_DP3] = { .name = "dp3", .nsrc = 2, .ndst = 1 },
  57     [BRW_OPCODE_DP2] = { .name = "dp2", .nsrc = 2, .ndst = 1 },
  58
  59     [BRW_OPCODE_AVG] = { .name = "avg", .nsrc = 2, .ndst = 1 },
  60     [BRW_OPCODE_ADD] = { .name = "add", .nsrc = 2, .ndst = 1 },
  61     [BRW_OPCODE_SEL] = { .name = "sel", .nsrc = 2, .ndst = 1 },
  62     [BRW_OPCODE_AND] = { .name = "and", .nsrc = 2, .ndst = 1 },
  63     [BRW_OPCODE_OR] = { .name = "or", .nsrc = 2, .ndst = 1 },
  64     [BRW_OPCODE_XOR] = { .name = "xor", .nsrc = 2, .ndst = 1 },
  65     [BRW_OPCODE_SHR] = { .name = "shr", .nsrc = 2, .ndst = 1 },
  66     [BRW_OPCODE_SHL] = { .name = "shl", .nsrc = 2, .ndst = 1 },
  67     [BRW_OPCODE_ASR] = { .name = "asr", .nsrc = 2, .ndst = 1 },
  68     [BRW_OPCODE_CMP] = { .name = "cmp", .nsrc = 2, .ndst = 1 },
  69     [BRW_OPCODE_CMPN] = { .name = "cmpn", .nsrc = 2, .ndst = 1 },
  70
  71     [BRW_OPCODE_SEND] = { .name = "send", .nsrc = 1, .ndst = 1 },
  72     [BRW_OPCODE_NOP] = { .name = "nop", .nsrc = 0, .ndst = 0 },
  73     [BRW_OPCODE_JMPI] = { .name = "jmpi", .nsrc = 1, .ndst = 0 },
  74     [BRW_OPCODE_IF] = { .name = "if", .nsrc = 2, .ndst = 0 },
  75     [BRW_OPCODE_IFF] = { .name = "iff", .nsrc = 1, .ndst = 01 },
  76     [BRW_OPCODE_WHILE] = { .name = "while", .nsrc = 1, .ndst = 0 },
  77     [BRW_OPCODE_ELSE] = { .name = "else", .nsrc = 2, .ndst = 0 },
  78     [BRW_OPCODE_BREAK] = { .name = "break", .nsrc = 1, .ndst = 0 },
  79     [BRW_OPCODE_CONTINUE] = { .name = "cont", .nsrc = 1, .ndst = 0 },
  80     [BRW_OPCODE_HALT] = { .name = "halt", .nsrc = 1, .ndst = 0 },
  81     [BRW_OPCODE_MSAVE] = { .name = "msave", .nsrc = 1, .ndst = 1 },
  82     [BRW_OPCODE_PUSH] = { .name = "push", .nsrc = 1, .ndst = 1 },
  83     [BRW_OPCODE_MRESTORE] = { .name = "mrest", .nsrc = 1, .ndst = 1 },
  84     [BRW_OPCODE_POP] = { .name = "pop", .nsrc = 2, .ndst = 0 },
  85     [BRW_OPCODE_WAIT] = { .name = "wait", .nsrc = 1, .ndst = 0 },
  86     [BRW_OPCODE_DO] = { .name = "do", .nsrc = 0, .ndst = 0 },
  87     [BRW_OPCODE_ENDIF] = { .name = "endif", .nsrc = 2, .ndst = 0 },
  88 };
  89
  90 char *conditional_modifier[16] = {
  91     [BRW_CONDITIONAL_NONE] = "",
  92     [BRW_CONDITIONAL_Z] = ".e",
  93     [BRW_CONDITIONAL_NZ] = ".ne",
  94     [BRW_CONDITIONAL_G] = ".g",
  95     [BRW_CONDITIONAL_GE] = ".ge",
  96     [BRW_CONDITIONAL_L] = ".l",
  97     [BRW_CONDITIONAL_LE] = ".le",
  98     [BRW_CONDITIONAL_R] = ".r",
  99     [BRW_CONDITIONAL_O] = ".o",
 100     [BRW_CONDITIONAL_U] = ".u",
 101 };
 102
 103 char *negate[2] = {
 104     [0] = "",
 105     [1] = "-",
 106 };
 107
 108 char *_abs[2] = {
 109     [0] = "",
 110     [1] = "(abs)",
 111 };
 112
 113 char *vert_stride[16] = {
 114     [0] = "0",
 115     [1] = "1",
 116     [2] = "2",
 117     [3] = "4",
 118     [4] = "8",
 119     [5] = "16",
 120     [6] = "32",
 121     [15] = "VxH",
 122 };
 123
 124 char *width[8] = {
 125     [0] = "1",
 126     [1] = "2",
 127     [2] = "4",
 128     [3] = "8",
 129     [4] = "16",
 130 };
 131
 132 char *horiz_stride[4] = {
 133     [0] = "0",
 134     [1] = "1",
 135     [2] = "2",
 136     [3] = "4"
 137 };
 138
 139 char *chan_sel[4] = {
 140     [0] = "x",
 141     [1] = "y",
 142     [2] = "z",
 143     [3] = "w",
 144 };
 145
 146 char *dest_condmod[16] = {
 147    [0] = NULL
 148 };
 149
 150 char *debug_ctrl[2] = {
 151     [0] = "",
 152     [1] = ".breakpoint"
 153 };
 154
 155 char *saturate[2] = {
 156     [0] = "",
 157     [1] = ".sat"
 158 };
 159
 160 char *exec_size[8] = {
 161     [0] = "1",
 162     [1] = "2",
 163     [2] = "4",
 164     [3] = "8",
 165     [4] = "16",
 166     [5] = "32"
 167 };
 168
 169 char *pred_inv[2] = {
 170     [0] = "+",
 171     [1] = "-"
 172 };
 173
 174 char *pred_ctrl_align16[16] = {
 175     [1] = "",
 176     [2] = ".x",
 177     [3] = ".y",
 178     [4] = ".z",
 179     [5] = ".w",
 180     [6] = ".any4h",
 181     [7] = ".all4h",
 182 };
 183
 184 char *pred_ctrl_align1[16] = {
 185     [1] = "",
 186     [2] = ".anyv",
 187     [3] = ".allv",
 188     [4] = ".any2h",
 189     [5] = ".all2h",
 190     [6] = ".any4h",
 191     [7] = ".all4h",
 192     [8] = ".any8h",
 193     [9] = ".all8h",
 194     [10] = ".any16h",
 195     [11] = ".all16h",
 196 };
 197
 198 char *thread_ctrl[4] = {
 199     [0] = "",
 200     [2] = "switch"
 201 };
 202
 203 char *compr_ctrl[4] = {
 204     [0] = "",
 205     [1] = "sechalf",
 206     [2] = "compr",
 207 };
 208
 209 char *dep_ctrl[4] = {
 210     [0] = "",
 211     [1] = "NoDDClr",
 212     [2] = "NoDDChk",
 213     [3] = "NoDDClr,NoDDChk",
 214 };
 215
 216 char *mask_ctrl[4] = {
 217     [0] = "",
 218     [1] = "nomask",
 219 };
 220
 221 char *access_mode[2] = {
 222     [0] = "align1",
 223     [1] = "align16",
 224 };
 225
 226 char *reg_encoding[8] = {
 227     [0] = "UD",
 228     [1] = "D",
 229     [2] = "UW",
 230     [3] = "W",
 231     [4] = "UB",
 232     [5] = "B",
 233     [7] = "F"
 234 };
 235
 236 char *imm_encoding[8] = {
 237     [0] = "UD",
 238     [1] = "D",
 239     [2] = "UW",
 240     [3] = "W",
 241     [5] = "VF",
 242     [5] = "V",
 243     [7] = "F"
 244 };
 245
 246 char *reg_file[4] = {
 247     [0] = "A",
 248     [1] = "g",
 249     [2] = "m",
 250     [3] = "imm",
 251 };
 252
 253 char *writemask[16] = {
 254     [0x0] = ".",
 255     [0x1] = ".x",
 256     [0x2] = ".y",
 257     [0x3] = ".xy",
 258     [0x4] = ".z",
 259     [0x5] = ".xz",
 260     [0x6] = ".yz",
 261     [0x7] = ".xyz",
 262     [0x8] = ".w",
 263     [0x9] = ".xw",
 264     [0xa] = ".yw",
 265     [0xb] = ".xyw",
 266     [0xc] = ".zw",
 267     [0xd] = ".xzw",
 268     [0xe] = ".yzw",
 269     [0xf] = "",
 270 };
 271
 272 char *end_of_thread[2] = {
 273     [0] = "",
 274     [1] = "EOT"
 275 };
 276
 277 char *target_function[16] = {
 278     [BRW_MESSAGE_TARGET_NULL] = "null",
 279     [BRW_MESSAGE_TARGET_MATH] = "math",
 280     [BRW_MESSAGE_TARGET_SAMPLER] = "sampler",
 281     [BRW_MESSAGE_TARGET_GATEWAY] = "gateway",
 282     [BRW_MESSAGE_TARGET_DATAPORT_READ] = "read",
 283     [BRW_MESSAGE_TARGET_DATAPORT_WRITE] = "write",
 284     [BRW_MESSAGE_TARGET_URB] = "urb",
 285     [BRW_MESSAGE_TARGET_THREAD_SPAWNER] = "thread_spawner"
 286 };
 287
 288 char *math_function[16] = {
 289     [BRW_MATH_FUNCTION_INV] = "inv",
 290     [BRW_MATH_FUNCTION_LOG] = "log",
 291     [BRW_MATH_FUNCTION_EXP] = "exp",
 292     [BRW_MATH_FUNCTION_SQRT] = "sqrt",
 293     [BRW_MATH_FUNCTION_RSQ] = "rsq",
 294     [BRW_MATH_FUNCTION_SIN] = "sin",
 295     [BRW_MATH_FUNCTION_COS] = "cos",
 296     [BRW_MATH_FUNCTION_SINCOS] = "sincos",
 297     [BRW_MATH_FUNCTION_TAN] = "tan",
 298     [BRW_MATH_FUNCTION_POW] = "pow",
 299     [BRW_MATH_FUNCTION_INT_DIV_QUOTIENT_AND_REMAINDER] = "intdivmod",
 300     [BRW_MATH_FUNCTION_INT_DIV_QUOTIENT] = "intmod",
 301     [BRW_MATH_FUNCTION_INT_DIV_REMAINDER] = "intdiv",
 302 };
 303
 304 char *math_saturate[2] = {
 305     [0] = "",
 306     [1] = "sat"
 307 };
 308
 309 char *math_signed[2] = {
 310     [0] = "",
 311     [1] = "signed"
 312 };
 313
 314 char *math_scalar[2] = {
 315     [0] = "",
 316     [1] = "scalar"
 317 };
 318
 319 char *math_precision[2] = {
 320     [0] = "",
 321     [1] = "partial_precision"
 322 };
 323
 324 char *urb_swizzle[4] = {
 325     [BRW_URB_SWIZZLE_NONE] = "",
 326     [BRW_URB_SWIZZLE_INTERLEAVE] = "interleave",
 327     [BRW_URB_SWIZZLE_TRANSPOSE] = "transpose",
 328 };
 329
 330 char *urb_allocate[2] = {
 331     [0] = "",
 332     [1] = "allocate"
 333 };
 334
 335 char *urb_used[2] = {
 336     [0] = "",
 337     [1] = "used"
 338 };
 339
 340 char *urb_complete[2] = {
 341     [0] = "",
 342     [1] = "complete"
 343 };
 344
 345 char *sampler_target_format[4] = {
 346     [0] = "F",
 347     [2] = "UD",
 348     [3] = "D"
 349 };
 350
 351
 352 static int column;
 353
 354 static int string (FILE *file, char *string)
 355 {
 356     fputs (string, file);
 357     column += strlen (string);
 358     return 0;
 359 }
 360
 361 static int format (FILE *f, char *format, ...)
 362 {
 363     char    buf[1024];
 364     va_list     args;
 365     va_start (args, format);
 366
 367     vsnprintf (buf, sizeof (buf) - 1, format, args);
 368     va_end (args);
 369     string (f, buf);
 370     return 0;
 371 }
 372
 373 static int newline (FILE *f)
 374 {
 375     putc ('\n', f);
 376     column = 0;
 377     return 0;
 378 }
 379
 380 static int pad (FILE *f, int c)
 381 {
 382     do
 383         string (f, " ");
 384     while (column < c);
 385     return 0;
 386 }
 387
 388 static int control (FILE *file, char *name, char *ctrl[], GLuint id, int *space)
 389 {
 390     if (!ctrl[id]) {
 391         fprintf (file, "*** invalid %s value %d ",
 392                  name, id);
 393         return 1;
 394     }
 395     if (ctrl[id][0])
 396     {
 397         if (space && *space)
 398             string (file, " ");
 399         string (file, ctrl[id]);
 400         if (space)
 401             *space = 1;
 402     }
 403     return 0;
 404 }
 405
 406 static int print_opcode (FILE *file, int id)
 407 {
 408     if (!opcode[id].name) {
 409         format (file, "*** invalid opcode value %d ", id);
 410         return 1;
 411     }
 412     string (file, opcode[id].name);
 413     return 0;
 414 }
 415
 416 static int reg (FILE *file, GLuint _reg_file, GLuint _reg_nr)
 417 {
 418     int err = 0;
 419     if (_reg_file == BRW_ARCHITECTURE_REGISTER_FILE) {
 420         switch (_reg_nr & 0xf0) {
 421         case BRW_ARF_NULL:
 422             string (file, "null");
 423             return -1;
 424         case BRW_ARF_ADDRESS:
 425             format (file, "a%d", _reg_nr & 0x0f);
 426             break;
 427         case BRW_ARF_ACCUMULATOR:
 428             format (file, "acc%d", _reg_nr & 0x0f);
 429             break;
 430         case BRW_ARF_MASK:
 431             format (file, "mask%d", _reg_nr & 0x0f);
 432             break;
 433         case BRW_ARF_MASK_STACK:
 434             format (file, "msd%d", _reg_nr & 0x0f);
 435             break;
 436         case BRW_ARF_STATE:
 437             format (file, "sr%d", _reg_nr & 0x0f);
 438             break;
 439         case BRW_ARF_CONTROL:
 440             format (file, "cr%d", _reg_nr & 0x0f);
 441             break;
 442         case BRW_ARF_NOTIFICATION_COUNT:
 443             format (file, "n%d", _reg_nr & 0x0f);
 444             break;
 445         case BRW_ARF_IP:
 446             string (file, "ip");
 447             return -1;
 448             break;
 449         default:
 450             format (file, "ARF%d", _reg_nr);
 451             break;
 452         }
 453     } else {
 454         err  |= control (file, "src reg file", reg_file, _reg_file, NULL);
 455         format (file, "%d", _reg_nr);
 456     }
 457     return err;
 458 }
 459
 460 static int dest (FILE *file, const struct brw_instruction *inst)
 461 {
 462     int err = 0;
 463
 464     if (inst->header.access_mode == BRW_ALIGN_1)
 465     {
 466         if (inst->bits1.da1.dest_address_mode == BRW_ADDRESS_DIRECT)
 467         {
 468             err |= reg (file, inst->bits1.da1.dest_reg_file, inst->bits1.da1.dest_reg_nr);
 469             if (err == -1)
 470                 return 0;
 471             if (inst->bits1.da1.dest_subreg_nr)
 472                 format (file, ".%d", inst->bits1.da1.dest_subreg_nr);
 473             format (file, "<%d>", inst->bits1.da1.dest_horiz_stride);
 474             err |= control (file, "dest reg encoding", reg_encoding, inst->bits1.da1.dest_reg_type, NULL);
 475         }
 476         else
 477         {
 478             string (file, "g[a0");
 479             if (inst->bits1.ia1.dest_subreg_nr)
 480                 format (file, ".%d", inst->bits1.ia1.dest_subreg_nr);
 481             if (inst->bits1.ia1.dest_indirect_offset)
 482                 format (file, " %d", inst->bits1.ia1.dest_indirect_offset);
 483             string (file, "]");
 484             format (file, "<%d>", inst->bits1.ia1.dest_horiz_stride);
 485             err |= control (file, "dest reg encoding", reg_encoding, inst->bits1.ia1.dest_reg_type, NULL);
 486         }
 487     }
 488     else
 489     {
 490         if (inst->bits1.da16.dest_address_mode == BRW_ADDRESS_DIRECT)
 491         {
 492             err |= reg (file, inst->bits1.da16.dest_reg_file, inst->bits1.da16.dest_reg_nr);
 493             if (err == -1)
 494                 return 0;
 495             if (inst->bits1.da16.dest_subreg_nr)
 496                 format (file, ".%d", inst->bits1.da16.dest_subreg_nr);
 497             string (file, "<1>");
 498             err |= control (file, "writemask", writemask, inst->bits1.da16.dest_writemask, NULL);
 499             err |= control (file, "dest reg encoding", reg_encoding, inst->bits1.da16.dest_reg_type, NULL);
 500         }
 501         else
 502         {
 503             err = 1;
 504             string (file, "Indirect align16 address mode not supported");
 505         }
 506     }
 507
 508     return 0;
 509 }
 510
 511 static int src_align1_region (FILE *file,
 512                               GLuint _vert_stride, GLuint _width, GLuint _horiz_stride)
 513 {
 514     int err = 0;
 515     string (file, "<");
 516     err |= control (file, "vert stride", vert_stride, _vert_stride, NULL);
 517     string (file, ",");
 518     err |= control (file, "width", width, _width, NULL);
 519     string (file, ",");
 520     err |= control (file, "horiz_stride", horiz_stride, _horiz_stride, NULL);
 521     string (file, ">");
 522     return err;
 523 }
 524
 525 static int src_da1 (FILE *file, GLuint type, GLuint _reg_file,
 526                     GLuint _vert_stride, GLuint _width, GLuint _horiz_stride,
 527                     GLuint reg_num, GLuint sub_reg_num, GLuint __abs, GLuint _negate)
 528 {
 529     int err = 0;
 530     err |= control (file, "negate", negate, _negate, NULL);
 531     err |= control (file, "abs", _abs, __abs, NULL);
 532
 533     err |= reg (file, _reg_file, reg_num);
 534     if (err == -1)
 535         return 0;
 536     if (sub_reg_num)
 537         format (file, ".%d", sub_reg_num);
 538     src_align1_region (file, _vert_stride, _width, _horiz_stride);
 539     err |= control (file, "src reg encoding", reg_encoding, type, NULL);
 540     return err;
 541 }
 542
 543 static int src_ia1 (FILE *file,
 544                     GLuint type,
 545                     GLuint _reg_file,
 546                     GLint _addr_imm,
 547                     GLuint _addr_subreg_nr,
 548                     GLuint _negate,
 549                     GLuint __abs,
 550                     GLuint _addr_mode,
 551                     GLuint _horiz_stride,
 552                     GLuint _width,
 553                     GLuint _vert_stride)
 554 {
 555     int err = 0;
 556     err |= control (file, "negate", negate, _negate, NULL);
 557     err |= control (file, "abs", _abs, __abs, NULL);
 558
 559     string (file, "g[a0");
 560     if (_addr_subreg_nr)
 561         format (file, ".%d", _addr_subreg_nr);
 562     if (_addr_imm)
 563         format (file, " %d", _addr_imm);
 564     string (file, "]");
 565     src_align1_region (file, _vert_stride, _width, _horiz_stride);
 566     err |= control (file, "src reg encoding", reg_encoding, type, NULL);
 567     return err;
 568 }
 569
 570 static int src_da16 (FILE *file,
 571                      GLuint _reg_type,
 572                      GLuint _reg_file,
 573                      GLuint _vert_stride,
 574                      GLuint _reg_nr,
 575                      GLuint _subreg_nr,
 576                      GLuint __abs,
 577                      GLuint _negate,
 578                      GLuint swz_x,
 579                      GLuint swz_y,
 580                      GLuint swz_z,
 581                      GLuint swz_w)
 582 {
 583     int err = 0;
 584     err |= control (file, "negate", negate, _negate, NULL);
 585     err |= control (file, "abs", _abs, __abs, NULL);
 586
 587     err |= reg (file, _reg_file, _reg_nr);
 588     if (err == -1)
 589         return 0;
 590     if (_subreg_nr)
 591         format (file, ".%d", _subreg_nr);
 592     string (file, "<");
 593     err |= control (file, "vert stride", vert_stride, _vert_stride, NULL);
 594     string (file, ",1,1>");
 595     err |= control (file, "src da16 reg type", reg_encoding, _reg_type, NULL);
 596     /*
 597      * Three kinds of swizzle display:
 598      *  identity - nothing printed
 599      *  1->all   - print the single channel
 600      *  1->1     - print the mapping
 601      */
 602     if (swz_x == BRW_CHANNEL_X &&
 603         swz_y == BRW_CHANNEL_Y &&
 604         swz_z == BRW_CHANNEL_Z &&
 605         swz_w == BRW_CHANNEL_W)
 606     {
 607         ;
 608     }
 609     else if (swz_x == swz_y && swz_x == swz_z && swz_x == swz_w)
 610     {
 611         string (file, ".");
 612         err |= control (file, "channel select", chan_sel, swz_x, NULL);
 613     }
 614     else
 615     {
 616         string (file, ".");
 617         err |= control (file, "channel select", chan_sel, swz_x, NULL);
 618         err |= control (file, "channel select", chan_sel, swz_y, NULL);
 619         err |= control (file, "channel select", chan_sel, swz_z, NULL);
 620         err |= control (file, "channel select", chan_sel, swz_w, NULL);
 621     }
 622     return err;
 623 }
 624
 625
 626 static int imm (FILE *file, GLuint type, const struct brw_instruction *inst) {
 627     switch (type) {
 628     case BRW_REGISTER_TYPE_UD:
 629         format (file, "0x%08xUD", inst->bits3.ud);
 630         break;
 631     case BRW_REGISTER_TYPE_D:
 632         format (file, "%dD", inst->bits3.d);
 633         break;
 634     case BRW_REGISTER_TYPE_UW:
 635         format (file, "0x%04xUW", (uint16_t) inst->bits3.ud);
 636         break;
 637     case BRW_REGISTER_TYPE_W:
 638         format (file, "%dW", (int16_t) inst->bits3.d);
 639         break;
 640     case BRW_REGISTER_TYPE_UB:
 641         format (file, "0x%02xUB", (int8_t) inst->bits3.ud);
 642         break;
 643     case BRW_REGISTER_TYPE_VF:
 644         format (file, "Vector Float");
 645         break;
 646     case BRW_REGISTER_TYPE_V:
 647         format (file, "0x%08xV", inst->bits3.ud);
 648         break;
 649     case BRW_REGISTER_TYPE_F:
 650         format (file, "%-gF", inst->bits3.f);
 651     }
 652     return 0;
 653 }
 654
 655 static int src0 (FILE *file, const struct brw_instruction *inst)
 656 {
 657     if (inst->bits1.da1.src0_reg_file == BRW_IMMEDIATE_VALUE)
 658         return imm (file, inst->bits1.da1.src0_reg_type,
 659                     inst);
 660     else if (inst->header.access_mode == BRW_ALIGN_1)
 661     {
 662         if (inst->bits2.da1.src0_address_mode == BRW_ADDRESS_DIRECT)
 663         {
 664             return src_da1 (file,
 665                             inst->bits1.da1.src0_reg_type,
 666                             inst->bits1.da1.src0_reg_file,
 667                             inst->bits2.da1.src0_vert_stride,
 668                             inst->bits2.da1.src0_width,
 669                             inst->bits2.da1.src0_horiz_stride,
 670                             inst->bits2.da1.src0_reg_nr,
 671                             inst->bits2.da1.src0_subreg_nr,
 672                             inst->bits2.da1.src0_abs,
 673                             inst->bits2.da1.src0_negate);
 674         }
 675         else
 676         {
 677             return src_ia1 (file,
 678                             inst->bits1.ia1.src0_reg_type,
 679                             inst->bits1.ia1.src0_reg_file,
 680                             inst->bits2.ia1.src0_indirect_offset,
 681                             inst->bits2.ia1.src0_subreg_nr,
 682                             inst->bits2.ia1.src0_negate,
 683                             inst->bits2.ia1.src0_abs,
 684                             inst->bits2.ia1.src0_address_mode,
 685                             inst->bits2.ia1.src0_horiz_stride,
 686                             inst->bits2.ia1.src0_width,
 687                             inst->bits2.ia1.src0_vert_stride);
 688         }
 689     }
 690     else
 691     {
 692         if (inst->bits2.da16.src0_address_mode == BRW_ADDRESS_DIRECT)
 693         {
 694             return src_da16 (file,
 695                              inst->bits1.da16.src0_reg_type,
 696                              inst->bits1.da16.src0_reg_file,
 697                              inst->bits2.da16.src0_vert_stride,
 698                              inst->bits2.da16.src0_reg_nr,
 699                              inst->bits2.da16.src0_subreg_nr,
 700                              inst->bits2.da16.src0_abs,
 701                              inst->bits2.da16.src0_negate,
 702                              inst->bits2.da16.src0_swz_x,
 703                              inst->bits2.da16.src0_swz_y,
 704                              inst->bits2.da16.src0_swz_z,
 705                              inst->bits2.da16.src0_swz_w);
 706         }
 707         else
 708         {
 709             string (file, "Indirect align16 address mode not supported");
 710             return 1;
 711         }
 712     }
 713 }
 714
 715 static int src1 (FILE *file, const struct brw_instruction *inst)
 716 {
 717     if (inst->bits1.da1.src1_reg_file == BRW_IMMEDIATE_VALUE)
 718         return imm (file, inst->bits1.da1.src1_reg_type,
 719                     inst);
 720     else if (inst->header.access_mode == BRW_ALIGN_1)
 721     {
 722         if (inst->bits3.da1.src1_address_mode == BRW_ADDRESS_DIRECT)
 723         {
 724             return src_da1 (file,
 725                             inst->bits1.da1.src1_reg_type,
 726                             inst->bits1.da1.src1_reg_file,
 727                             inst->bits3.da1.src1_vert_stride,
 728                             inst->bits3.da1.src1_width,
 729                             inst->bits3.da1.src1_horiz_stride,
 730                             inst->bits3.da1.src1_reg_nr,
 731                             inst->bits3.da1.src1_subreg_nr,
 732                             inst->bits3.da1.src1_abs,
 733                             inst->bits3.da1.src1_negate);
 734         }
 735         else
 736         {
 737             return src_ia1 (file,
 738                             inst->bits1.ia1.src1_reg_type,
 739                             inst->bits1.ia1.src1_reg_file,
 740                             inst->bits3.ia1.src1_indirect_offset,
 741                             inst->bits3.ia1.src1_subreg_nr,
 742                             inst->bits3.ia1.src1_negate,
 743                             inst->bits3.ia1.src1_abs,
 744                             inst->bits3.ia1.src1_address_mode,
 745                             inst->bits3.ia1.src1_horiz_stride,
 746                             inst->bits3.ia1.src1_width,
 747                             inst->bits3.ia1.src1_vert_stride);
 748         }
 749     }
 750     else
 751     {
 752         if (inst->bits3.da16.src1_address_mode == BRW_ADDRESS_DIRECT)
 753         {
 754             return src_da16 (file,
 755                              inst->bits1.da16.src1_reg_type,
 756                              inst->bits1.da16.src1_reg_file,
 757                              inst->bits3.da16.src1_vert_stride,
 758                              inst->bits3.da16.src1_reg_nr,
 759                              inst->bits3.da16.src1_subreg_nr,
 760                              inst->bits3.da16.src1_abs,
 761                              inst->bits3.da16.src1_negate,
 762                              inst->bits3.da16.src1_swz_x,
 763                              inst->bits3.da16.src1_swz_y,
 764                              inst->bits3.da16.src1_swz_z,
 765                              inst->bits3.da16.src1_swz_w);
 766         }
 767         else
 768         {
 769             string (file, "Indirect align16 address mode not supported");
 770             return 1;
 771         }
 772     }
 773 }
 774
 775 int brw_disasm_insn (FILE *file, const struct brw_instruction *inst)
 776 {
 777     int err = 0;
 778     int space = 0;
 779
 780     if (inst->header.predicate_control) {
 781         string (file, "(");
 782         err |= control (file, "predicate inverse", pred_inv, inst->header.predicate_inverse, NULL);
 783         string (file, "f0");
 784         if (inst->bits2.da1.flag_reg_nr)
 785             format (file, ".%d", inst->bits2.da1.flag_reg_nr);
 786         if (inst->header.access_mode == BRW_ALIGN_1)
 787             err |= control (file, "predicate control align1", pred_ctrl_align1,
 788                             inst->header.predicate_control, NULL);
 789         else
 790             err |= control (file, "predicate control align16", pred_ctrl_align16,
 791                             inst->header.predicate_control, NULL);
 792         string (file, ") ");
 793     }
 794
 795     err |= print_opcode (file, inst->header.opcode);
 796     err |= control (file, "saturate", saturate, inst->header.saturate, NULL);
 797     err |= control (file, "debug control", debug_ctrl, inst->header.debug_control, NULL);
 798
 799     if (inst->header.opcode != BRW_OPCODE_SEND)
 800         err |= control (file, "conditional modifier", conditional_modifier,
 801                         inst->header.destreg__conditionalmod, NULL);
 802
 803     if (inst->header.opcode != BRW_OPCODE_NOP) {
 804         string (file, "(");
 805         err |= control (file, "execution size", exec_size, inst->header.execution_size, NULL);
 806         string (file, ")");
 807     }
 808
 809     if (inst->header.opcode == BRW_OPCODE_SEND)
 810         format (file, " %d", inst->header.destreg__conditionalmod);
 811
 812     if (opcode[inst->header.opcode].ndst > 0) {
 813         pad (file, 16);
 814         err |= dest (file, inst);
 815     }
 816     if (opcode[inst->header.opcode].nsrc > 0) {
 817         pad (file, 32);
 818         err |= src0 (file, inst);
 819     }
 820     if (opcode[inst->header.opcode].nsrc > 1) {
 821         pad (file, 48);
 822         err |= src1 (file, inst);
 823     }
 824
 825     if (inst->header.opcode == BRW_OPCODE_SEND) {
 826         newline (file);
 827         pad (file, 16);
 828         space = 0;
 829         err |= control (file, "target function", target_function,
 830                         inst->bits3.generic.msg_target, &space);
 831         switch (inst->bits3.generic.msg_target) {
 832         case BRW_MESSAGE_TARGET_MATH:
 833             err |= control (file, "math function", math_function,
 834                             inst->bits3.math.function, &space);
 835             err |= control (file, "math saturate", math_saturate,
 836                             inst->bits3.math.saturate, &space);
 837             err |= control (file, "math signed", math_signed,
 838                             inst->bits3.math.int_type, &space);
 839             err |= control (file, "math scalar", math_scalar,
 840                             inst->bits3.math.data_type, &space);
 841             err |= control (file, "math precision", math_precision,
 842                             inst->bits3.math.precision, &space);
 843             break;
 844         case BRW_MESSAGE_TARGET_SAMPLER:
 845             format (file, " (%d, %d, ",
 846                     inst->bits3.sampler.binding_table_index,
 847                     inst->bits3.sampler.sampler);
 848             err |= control (file, "sampler target format", sampler_target_format,
 849                             inst->bits3.sampler.return_format, NULL);
 850             string (file, ")");
 851             break;
 852         case BRW_MESSAGE_TARGET_DATAPORT_WRITE:
 853             format (file, " (%d, %d, %d, %d)",
 854                     inst->bits3.dp_write.binding_table_index,
 855                     (inst->bits3.dp_write.pixel_scoreboard_clear << 3) |
 856                     inst->bits3.dp_write.msg_control,
 857                     inst->bits3.dp_write.msg_type,
 858                     inst->bits3.dp_write.send_commit_msg);
 859             break;
 860         case BRW_MESSAGE_TARGET_URB:
 861             format (file, " %d", inst->bits3.urb.offset);
 862             space = 1;
 863             err |= control (file, "urb swizzle", urb_swizzle,
 864                             inst->bits3.urb.swizzle_control, &space);
 865             err |= control (file, "urb allocate", urb_allocate,
 866                             inst->bits3.urb.allocate, &space);
 867             err |= control (file, "urb used", urb_used,
 868                             inst->bits3.urb.used, &space);
 869             err |= control (file, "urb complete", urb_complete,
 870                             inst->bits3.urb.complete, &space);
 871             break;
 872         case BRW_MESSAGE_TARGET_THREAD_SPAWNER:
 873             break;
 874         default:
 875             format (file, "unsupported target %d", inst->bits3.generic.msg_target);
 876             break;
 877         }
 878         if (space)
 879             string (file, " ");
 880         format (file, "mlen %d",
 881                 inst->bits3.generic.msg_length);
 882         format (file, " rlen %d",
 883                 inst->bits3.generic.response_length);
 884     }
 885     pad (file, 64);
 886     if (inst->header.opcode != BRW_OPCODE_NOP) {
 887         string (file, "{");
 888         space = 1;
 889         err |= control(file, "access mode", access_mode, inst->header.access_mode, &space);
 890         err |= control (file, "mask control", mask_ctrl, inst->header.mask_control, &space);
 891         err |= control (file, "dependency control", dep_ctrl, inst->header.dependency_control, &space);
 892         err |= control (file, "compression control", compr_ctrl, inst->header.compression_control, &space);
 893         err |= control (file, "thread control", thread_ctrl, inst->header.thread_control, &space);
 894         if (inst->header.opcode == BRW_OPCODE_SEND)
 895             err |= control (file, "end of thread", end_of_thread,
 896                             inst->bits3.generic.end_of_thread, &space);
 897         if (space)
 898             string (file, " ");
 899         string (file, "}");
 900     }
 901     string (file, ";");
 902     newline (file);
 903     return err;
 904 }
 905
 906
 907 int brw_disasm (FILE *file,
 908                 const struct brw_instruction *inst,
 909                 unsigned count)
 910 {
 911    int i, err;
 912
 913    for (i = 0; i < count; i++) {
 914       err = brw_disasm_insn(stderr, &inst[i]);
 915       if (err)
 916          return err;
 917    }
 918
 919    fprintf(file, "\n");
 920    return 0;
 921 }
 922