src/mesa/drivers/dri/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 <getopt.h>
  27 #include <unistd.h>
  28 #include <stdarg.h>
  29
  30 #include "main/mtypes.h"
  31
  32 #include "brw_context.h"
  33 #include "brw_defines.h"
  34
  35 struct {
  36     char    *name;
  37     int     nsrc;
  38     int     ndst;
  39 } opcode[128] = {
  40     [BRW_OPCODE_MOV] = { .name = "mov", .nsrc = 1, .ndst = 1 },
  41     [BRW_OPCODE_FRC] = { .name = "frc", .nsrc = 1, .ndst = 1 },
  42     [BRW_OPCODE_RNDU] = { .name = "rndu", .nsrc = 1, .ndst = 1 },
  43     [BRW_OPCODE_RNDD] = { .name = "rndd", .nsrc = 1, .ndst = 1 },
  44     [BRW_OPCODE_RNDE] = { .name = "rnde", .nsrc = 1, .ndst = 1 },
  45     [BRW_OPCODE_RNDZ] = { .name = "rndz", .nsrc = 1, .ndst = 1 },
  46     [BRW_OPCODE_NOT] = { .name = "not", .nsrc = 1, .ndst = 1 },
  47     [BRW_OPCODE_LZD] = { .name = "lzd", .nsrc = 1, .ndst = 1 },
  48
  49     [BRW_OPCODE_MUL] = { .name = "mul", .nsrc = 2, .ndst = 1 },
  50     [BRW_OPCODE_MAC] = { .name = "mac", .nsrc = 2, .ndst = 1 },
  51     [BRW_OPCODE_MACH] = { .name = "mach", .nsrc = 2, .ndst = 1 },
  52     [BRW_OPCODE_LINE] = { .name = "line", .nsrc = 2, .ndst = 1 },
  53     [BRW_OPCODE_PLN] = { .name = "pln", .nsrc = 2, .ndst = 1 },
  54     [BRW_OPCODE_SAD2] = { .name = "sad2", .nsrc = 2, .ndst = 1 },
  55     [BRW_OPCODE_SADA2] = { .name = "sada2", .nsrc = 2, .ndst = 1 },
  56     [BRW_OPCODE_DP4] = { .name = "dp4", .nsrc = 2, .ndst = 1 },
  57     [BRW_OPCODE_DPH] = { .name = "dph", .nsrc = 2, .ndst = 1 },
  58     [BRW_OPCODE_DP3] = { .name = "dp3", .nsrc = 2, .ndst = 1 },
  59     [BRW_OPCODE_DP2] = { .name = "dp2", .nsrc = 2, .ndst = 1 },
  60     [BRW_OPCODE_MATH] = { .name = "math", .nsrc = 2, .ndst = 1 },
  61
  62     [BRW_OPCODE_AVG] = { .name = "avg", .nsrc = 2, .ndst = 1 },
  63     [BRW_OPCODE_ADD] = { .name = "add", .nsrc = 2, .ndst = 1 },
  64     [BRW_OPCODE_SEL] = { .name = "sel", .nsrc = 2, .ndst = 1 },
  65     [BRW_OPCODE_AND] = { .name = "and", .nsrc = 2, .ndst = 1 },
  66     [BRW_OPCODE_OR] = { .name = "or", .nsrc = 2, .ndst = 1 },
  67     [BRW_OPCODE_XOR] = { .name = "xor", .nsrc = 2, .ndst = 1 },
  68     [BRW_OPCODE_SHR] = { .name = "shr", .nsrc = 2, .ndst = 1 },
  69     [BRW_OPCODE_SHL] = { .name = "shl", .nsrc = 2, .ndst = 1 },
  70     [BRW_OPCODE_ASR] = { .name = "asr", .nsrc = 2, .ndst = 1 },
  71     [BRW_OPCODE_CMP] = { .name = "cmp", .nsrc = 2, .ndst = 1 },
  72     [BRW_OPCODE_CMPN] = { .name = "cmpn", .nsrc = 2, .ndst = 1 },
  73
  74     [BRW_OPCODE_SEND] = { .name = "send", .nsrc = 1, .ndst = 1 },
  75     [BRW_OPCODE_NOP] = { .name = "nop", .nsrc = 0, .ndst = 0 },
  76     [BRW_OPCODE_JMPI] = { .name = "jmpi", .nsrc = 1, .ndst = 0 },
  77     [BRW_OPCODE_IF] = { .name = "if", .nsrc = 2, .ndst = 0 },
  78     [BRW_OPCODE_IFF] = { .name = "iff", .nsrc = 2, .ndst = 1 },
  79     [BRW_OPCODE_WHILE] = { .name = "while", .nsrc = 2, .ndst = 0 },
  80     [BRW_OPCODE_ELSE] = { .name = "else", .nsrc = 2, .ndst = 0 },
  81     [BRW_OPCODE_BREAK] = { .name = "break", .nsrc = 2, .ndst = 0 },
  82     [BRW_OPCODE_CONTINUE] = { .name = "cont", .nsrc = 1, .ndst = 0 },
  83     [BRW_OPCODE_HALT] = { .name = "halt", .nsrc = 1, .ndst = 0 },
  84     [BRW_OPCODE_MSAVE] = { .name = "msave", .nsrc = 1, .ndst = 1 },
  85     [BRW_OPCODE_PUSH] = { .name = "push", .nsrc = 1, .ndst = 1 },
  86     [BRW_OPCODE_MRESTORE] = { .name = "mrest", .nsrc = 1, .ndst = 1 },
  87     [BRW_OPCODE_POP] = { .name = "pop", .nsrc = 2, .ndst = 0 },
  88     [BRW_OPCODE_WAIT] = { .name = "wait", .nsrc = 1, .ndst = 0 },
  89     [BRW_OPCODE_DO] = { .name = "do", .nsrc = 0, .ndst = 0 },
  90     [BRW_OPCODE_ENDIF] = { .name = "endif", .nsrc = 2, .ndst = 0 },
  91 };
  92
  93 char *conditional_modifier[16] = {
  94     [BRW_CONDITIONAL_NONE] = "",
  95     [BRW_CONDITIONAL_Z] = ".e",
  96     [BRW_CONDITIONAL_NZ] = ".ne",
  97     [BRW_CONDITIONAL_G] = ".g",
  98     [BRW_CONDITIONAL_GE] = ".ge",
  99     [BRW_CONDITIONAL_L] = ".l",
 100     [BRW_CONDITIONAL_LE] = ".le",
 101     [BRW_CONDITIONAL_R] = ".r",
 102     [BRW_CONDITIONAL_O] = ".o",
 103     [BRW_CONDITIONAL_U] = ".u",
 104 };
 105
 106 char *negate[2] = {
 107     [0] = "",
 108     [1] = "-",
 109 };
 110
 111 char *_abs[2] = {
 112     [0] = "",
 113     [1] = "(abs)",
 114 };
 115
 116 char *vert_stride[16] = {
 117     [0] = "0",
 118     [1] = "1",
 119     [2] = "2",
 120     [3] = "4",
 121     [4] = "8",
 122     [5] = "16",
 123     [6] = "32",
 124     [15] = "VxH",
 125 };
 126
 127 char *width[8] = {
 128     [0] = "1",
 129     [1] = "2",
 130     [2] = "4",
 131     [3] = "8",
 132     [4] = "16",
 133 };
 134
 135 char *horiz_stride[4] = {
 136     [0] = "0",
 137     [1] = "1",
 138     [2] = "2",
 139     [3] = "4"
 140 };
 141
 142 char *chan_sel[4] = {
 143     [0] = "x",
 144     [1] = "y",
 145     [2] = "z",
 146     [3] = "w",
 147 };
 148
 149 char *dest_condmod[16] = {
 150 };
 151
 152 char *debug_ctrl[2] = {
 153     [0] = "",
 154     [1] = ".breakpoint"
 155 };
 156
 157 char *saturate[2] = {
 158     [0] = "",
 159     [1] = ".sat"
 160 };
 161
 162 char *exec_size[8] = {
 163     [0] = "1",
 164     [1] = "2",
 165     [2] = "4",
 166     [3] = "8",
 167     [4] = "16",
 168     [5] = "32"
 169 };
 170
 171 char *pred_inv[2] = {
 172     [0] = "+",
 173     [1] = "-"
 174 };
 175
 176 char *pred_ctrl_align16[16] = {
 177     [1] = "",
 178     [2] = ".x",
 179     [3] = ".y",
 180     [4] = ".z",
 181     [5] = ".w",
 182     [6] = ".any4h",
 183     [7] = ".all4h",
 184 };
 185
 186 char *pred_ctrl_align1[16] = {
 187     [1] = "",
 188     [2] = ".anyv",
 189     [3] = ".allv",
 190     [4] = ".any2h",
 191     [5] = ".all2h",
 192     [6] = ".any4h",
 193     [7] = ".all4h",
 194     [8] = ".any8h",
 195     [9] = ".all8h",
 196     [10] = ".any16h",
 197     [11] = ".all16h",
 198 };
 199
 200 char *thread_ctrl[4] = {
 201     [0] = "",
 202     [2] = "switch"
 203 };
 204
 205 char *compr_ctrl[4] = {
 206     [0] = "",
 207     [1] = "sechalf",
 208     [2] = "compr",
 209     [3] = "compr4",
 210 };
 211
 212 char *dep_ctrl[4] = {
 213     [0] = "",
 214     [1] = "NoDDClr",
 215     [2] = "NoDDChk",
 216     [3] = "NoDDClr,NoDDChk",
 217 };
 218
 219 char *mask_ctrl[4] = {
 220     [0] = "",
 221     [1] = "nomask",
 222 };
 223
 224 char *access_mode[2] = {
 225     [0] = "align1",
 226     [1] = "align16",
 227 };
 228
 229 char *reg_encoding[8] = {
 230     [0] = "UD",
 231     [1] = "D",
 232     [2] = "UW",
 233     [3] = "W",
 234     [4] = "UB",
 235     [5] = "B",
 236     [7] = "F"
 237 };
 238
 239 int reg_type_size[8] = {
 240     [0] = 4,
 241     [1] = 4,
 242     [2] = 2,
 243     [3] = 2,
 244     [4] = 1,
 245     [5] = 1,
 246     [7] = 4
 247 };
 248
 249 char *imm_encoding[8] = {
 250     [0] = "UD",
 251     [1] = "D",
 252     [2] = "UW",
 253     [3] = "W",
 254     [5] = "VF",
 255     [6] = "V",
 256     [7] = "F"
 257 };
 258
 259 char *reg_file[4] = {
 260     [0] = "A",
 261     [1] = "g",
 262     [2] = "m",
 263     [3] = "imm",
 264 };
 265
 266 char *writemask[16] = {
 267     [0x0] = ".",
 268     [0x1] = ".x",
 269     [0x2] = ".y",
 270     [0x3] = ".xy",
 271     [0x4] = ".z",
 272     [0x5] = ".xz",
 273     [0x6] = ".yz",
 274     [0x7] = ".xyz",
 275     [0x8] = ".w",
 276     [0x9] = ".xw",
 277     [0xa] = ".yw",
 278     [0xb] = ".xyw",
 279     [0xc] = ".zw",
 280     [0xd] = ".xzw",
 281     [0xe] = ".yzw",
 282     [0xf] = "",
 283 };
 284
 285 char *end_of_thread[2] = {
 286     [0] = "",
 287     [1] = "EOT"
 288 };
 289
 290 char *target_function[16] = {
 291     [BRW_MESSAGE_TARGET_NULL] = "null",
 292     [BRW_MESSAGE_TARGET_MATH] = "math",
 293     [BRW_MESSAGE_TARGET_SAMPLER] = "sampler",
 294     [BRW_MESSAGE_TARGET_GATEWAY] = "gateway",
 295     [BRW_MESSAGE_TARGET_DATAPORT_READ] = "read",
 296     [BRW_MESSAGE_TARGET_DATAPORT_WRITE] = "write",
 297     [BRW_MESSAGE_TARGET_URB] = "urb",
 298     [BRW_MESSAGE_TARGET_THREAD_SPAWNER] = "thread_spawner"
 299 };
 300
 301 char *math_function[16] = {
 302     [BRW_MATH_FUNCTION_INV] = "inv",
 303     [BRW_MATH_FUNCTION_LOG] = "log",
 304     [BRW_MATH_FUNCTION_EXP] = "exp",
 305     [BRW_MATH_FUNCTION_SQRT] = "sqrt",
 306     [BRW_MATH_FUNCTION_RSQ] = "rsq",
 307     [BRW_MATH_FUNCTION_SIN] = "sin",
 308     [BRW_MATH_FUNCTION_COS] = "cos",
 309     [BRW_MATH_FUNCTION_SINCOS] = "sincos",
 310     [BRW_MATH_FUNCTION_TAN] = "tan",
 311     [BRW_MATH_FUNCTION_POW] = "pow",
 312     [BRW_MATH_FUNCTION_INT_DIV_QUOTIENT_AND_REMAINDER] = "intdivmod",
 313     [BRW_MATH_FUNCTION_INT_DIV_QUOTIENT] = "intmod",
 314     [BRW_MATH_FUNCTION_INT_DIV_REMAINDER] = "intdiv",
 315 };
 316
 317 char *math_saturate[2] = {
 318     [0] = "",
 319     [1] = "sat"
 320 };
 321
 322 char *math_signed[2] = {
 323     [0] = "",
 324     [1] = "signed"
 325 };
 326
 327 char *math_scalar[2] = {
 328     [0] = "",
 329     [1] = "scalar"
 330 };
 331
 332 char *math_precision[2] = {
 333     [0] = "",
 334     [1] = "partial_precision"
 335 };
 336
 337 char *urb_opcode[2] = {
 338     [0] = "urb_write",
 339     [1] = "ff_sync",
 340 };
 341
 342 char *urb_swizzle[4] = {
 343     [BRW_URB_SWIZZLE_NONE] = "",
 344     [BRW_URB_SWIZZLE_INTERLEAVE] = "interleave",
 345     [BRW_URB_SWIZZLE_TRANSPOSE] = "transpose",
 346 };
 347
 348 char *urb_allocate[2] = {
 349     [0] = "",
 350     [1] = "allocate"
 351 };
 352
 353 char *urb_used[2] = {
 354     [0] = "",
 355     [1] = "used"
 356 };
 357
 358 char *urb_complete[2] = {
 359     [0] = "",
 360     [1] = "complete"
 361 };
 362
 363 char *sampler_target_format[4] = {
 364     [0] = "F",
 365     [2] = "UD",
 366     [3] = "D"
 367 };
 368
 369
 370 static int column;
 371
 372 static int string (FILE *file, char *string)
 373 {
 374     fputs (string, file);
 375     column += strlen (string);
 376     return 0;
 377 }
 378
 379 static int format (FILE *f, char *format, ...)
 380 {
 381     char    buf[1024];
 382     va_list     args;
 383     va_start (args, format);
 384
 385     vsnprintf (buf, sizeof (buf) - 1, format, args);
 386     va_end (args);
 387     string (f, buf);
 388     return 0;
 389 }
 390
 391 static int newline (FILE *f)
 392 {
 393     putc ('\n', f);
 394     column = 0;
 395     return 0;
 396 }
 397
 398 static int pad (FILE *f, int c)
 399 {
 400     do
 401         string (f, " ");
 402     while (column < c);
 403     return 0;
 404 }
 405
 406 static int control (FILE *file, char *name, char *ctrl[], GLuint id, int *space)
 407 {
 408     if (!ctrl[id]) {
 409         fprintf (file, "*** invalid %s value %d ",
 410                  name, id);
 411         return 1;
 412     }
 413     if (ctrl[id][0])
 414     {
 415         if (space && *space)
 416             string (file, " ");
 417         string (file, ctrl[id]);
 418         if (space)
 419             *space = 1;
 420     }
 421     return 0;
 422 }
 423
 424 static int print_opcode (FILE *file, int id)
 425 {
 426     if (!opcode[id].name) {
 427         format (file, "*** invalid opcode value %d ", id);
 428         return 1;
 429     }
 430     string (file, opcode[id].name);
 431     return 0;
 432 }
 433
 434 static int reg (FILE *file, GLuint _reg_file, GLuint _reg_nr)
 435 {
 436     int err = 0;
 437
 438     /* Clear the Compr4 instruction compression bit. */
 439     if (_reg_file == BRW_MESSAGE_REGISTER_FILE)
 440        _reg_nr &= ~(1 << 7);
 441
 442     if (_reg_file == BRW_ARCHITECTURE_REGISTER_FILE) {
 443         switch (_reg_nr & 0xf0) {
 444         case BRW_ARF_NULL:
 445             string (file, "null");
 446             return -1;
 447         case BRW_ARF_ADDRESS:
 448             format (file, "a%d", _reg_nr & 0x0f);
 449             break;
 450         case BRW_ARF_ACCUMULATOR:
 451             format (file, "acc%d", _reg_nr & 0x0f);
 452             break;
 453         case BRW_ARF_MASK:
 454             format (file, "mask%d", _reg_nr & 0x0f);
 455             break;
 456         case BRW_ARF_MASK_STACK:
 457             format (file, "msd%d", _reg_nr & 0x0f);
 458             break;
 459         case BRW_ARF_STATE:
 460             format (file, "sr%d", _reg_nr & 0x0f);
 461             break;
 462         case BRW_ARF_CONTROL:
 463             format (file, "cr%d", _reg_nr & 0x0f);
 464             break;
 465         case BRW_ARF_NOTIFICATION_COUNT:
 466             format (file, "n%d", _reg_nr & 0x0f);
 467             break;
 468         case BRW_ARF_IP:
 469             string (file, "ip");
 470             return -1;
 471             break;
 472         default:
 473             format (file, "ARF%d", _reg_nr);
 474             break;
 475         }
 476     } else {
 477         err  |= control (file, "src reg file", reg_file, _reg_file, NULL);
 478         format (file, "%d", _reg_nr);
 479     }
 480     return err;
 481 }
 482
 483 static int dest (FILE *file, struct brw_instruction *inst)
 484 {
 485     int err = 0;
 486
 487     if (inst->header.access_mode == BRW_ALIGN_1)
 488     {
 489         if (inst->bits1.da1.dest_address_mode == BRW_ADDRESS_DIRECT)
 490         {
 491             err |= reg (file, inst->bits1.da1.dest_reg_file, inst->bits1.da1.dest_reg_nr);
 492             if (err == -1)
 493                 return 0;
 494             if (inst->bits1.da1.dest_subreg_nr)
 495                 format (file, ".%d", inst->bits1.da1.dest_subreg_nr /
 496                                      reg_type_size[inst->bits1.da1.dest_reg_type]);
 497             format (file, "<%d>", inst->bits1.da1.dest_horiz_stride);
 498             err |= control (file, "dest reg encoding", reg_encoding, inst->bits1.da1.dest_reg_type, NULL);
 499         }
 500         else
 501         {
 502             string (file, "g[a0");
 503             if (inst->bits1.ia1.dest_subreg_nr)
 504                 format (file, ".%d", inst->bits1.ia1.dest_subreg_nr /
 505                                         reg_type_size[inst->bits1.ia1.dest_reg_type]);
 506             if (inst->bits1.ia1.dest_indirect_offset)
 507                 format (file, " %d", inst->bits1.ia1.dest_indirect_offset);
 508             string (file, "]");
 509             format (file, "<%d>", inst->bits1.ia1.dest_horiz_stride);
 510             err |= control (file, "dest reg encoding", reg_encoding, inst->bits1.ia1.dest_reg_type, NULL);
 511         }
 512     }
 513     else
 514     {
 515         if (inst->bits1.da16.dest_address_mode == BRW_ADDRESS_DIRECT)
 516         {
 517             err |= reg (file, inst->bits1.da16.dest_reg_file, inst->bits1.da16.dest_reg_nr);
 518             if (err == -1)
 519                 return 0;
 520             if (inst->bits1.da16.dest_subreg_nr)
 521                 format (file, ".%d", inst->bits1.da16.dest_subreg_nr /
 522                                      reg_type_size[inst->bits1.da16.dest_reg_type]);
 523             string (file, "<1>");
 524             err |= control (file, "writemask", writemask, inst->bits1.da16.dest_writemask, NULL);
 525             err |= control (file, "dest reg encoding", reg_encoding, inst->bits1.da16.dest_reg_type, NULL);
 526         }
 527         else
 528         {
 529             err = 1;
 530             string (file, "Indirect align16 address mode not supported");
 531         }
 532     }
 533
 534     return 0;
 535 }
 536
 537 static int src_align1_region (FILE *file,
 538                               GLuint _vert_stride, GLuint _width, GLuint _horiz_stride)
 539 {
 540     int err = 0;
 541     string (file, "<");
 542     err |= control (file, "vert stride", vert_stride, _vert_stride, NULL);
 543     string (file, ",");
 544     err |= control (file, "width", width, _width, NULL);
 545     string (file, ",");
 546     err |= control (file, "horiz_stride", horiz_stride, _horiz_stride, NULL);
 547     string (file, ">");
 548     return err;
 549 }
 550
 551 static int src_da1 (FILE *file, GLuint type, GLuint _reg_file,
 552                     GLuint _vert_stride, GLuint _width, GLuint _horiz_stride,
 553                     GLuint reg_num, GLuint sub_reg_num, GLuint __abs, GLuint _negate)
 554 {
 555     int err = 0;
 556     err |= control (file, "negate", negate, _negate, NULL);
 557     err |= control (file, "abs", _abs, __abs, NULL);
 558
 559     err |= reg (file, _reg_file, reg_num);
 560     if (err == -1)
 561         return 0;
 562     if (sub_reg_num)
 563         format (file, ".%d", sub_reg_num / reg_type_size[type]); /* use formal style like spec */
 564     src_align1_region (file, _vert_stride, _width, _horiz_stride);
 565     err |= control (file, "src reg encoding", reg_encoding, type, NULL);
 566     return err;
 567 }
 568
 569 static int src_ia1 (FILE *file,
 570                     GLuint type,
 571                     GLuint _reg_file,
 572                     GLint _addr_imm,
 573                     GLuint _addr_subreg_nr,
 574                     GLuint _negate,
 575                     GLuint __abs,
 576                     GLuint _addr_mode,
 577                     GLuint _horiz_stride,
 578                     GLuint _width,
 579                     GLuint _vert_stride)
 580 {
 581     int err = 0;
 582     err |= control (file, "negate", negate, _negate, NULL);
 583     err |= control (file, "abs", _abs, __abs, NULL);
 584
 585     string (file, "g[a0");
 586     if (_addr_subreg_nr)
 587         format (file, ".%d", _addr_subreg_nr);
 588     if (_addr_imm)
 589         format (file, " %d", _addr_imm);
 590     string (file, "]");
 591     src_align1_region (file, _vert_stride, _width, _horiz_stride);
 592     err |= control (file, "src reg encoding", reg_encoding, type, NULL);
 593     return err;
 594 }
 595
 596 static int src_da16 (FILE *file,
 597                      GLuint _reg_type,
 598                      GLuint _reg_file,
 599                      GLuint _vert_stride,
 600                      GLuint _reg_nr,
 601                      GLuint _subreg_nr,
 602                      GLuint __abs,
 603                      GLuint _negate,
 604                      GLuint swz_x,
 605                      GLuint swz_y,
 606                      GLuint swz_z,
 607                      GLuint swz_w)
 608 {
 609     int err = 0;
 610     err |= control (file, "negate", negate, _negate, NULL);
 611     err |= control (file, "abs", _abs, __abs, NULL);
 612
 613     err |= reg (file, _reg_file, _reg_nr);
 614     if (err == -1)
 615         return 0;
 616     if (_subreg_nr)
 617         /* bit4 for subreg number byte addressing. Make this same meaning as
 618            in da1 case, so output looks consistent. */
 619         format (file, ".%d", 16 / reg_type_size[_reg_type]);
 620     string (file, "<");
 621     err |= control (file, "vert stride", vert_stride, _vert_stride, NULL);
 622     string (file, ",4,1>");
 623     /*
 624      * Three kinds of swizzle display:
 625      *  identity - nothing printed
 626      *  1->all   - print the single channel
 627      *  1->1     - print the mapping
 628      */
 629     if (swz_x == BRW_CHANNEL_X &&
 630         swz_y == BRW_CHANNEL_Y &&
 631         swz_z == BRW_CHANNEL_Z &&
 632         swz_w == BRW_CHANNEL_W)
 633     {
 634         ;
 635     }
 636     else if (swz_x == swz_y && swz_x == swz_z && swz_x == swz_w)
 637     {
 638         string (file, ".");
 639         err |= control (file, "channel select", chan_sel, swz_x, NULL);
 640     }
 641     else
 642     {
 643         string (file, ".");
 644         err |= control (file, "channel select", chan_sel, swz_x, NULL);
 645         err |= control (file, "channel select", chan_sel, swz_y, NULL);
 646         err |= control (file, "channel select", chan_sel, swz_z, NULL);
 647         err |= control (file, "channel select", chan_sel, swz_w, NULL);
 648     }
 649     return err;
 650 }
 651
 652
 653 static int imm (FILE *file, GLuint type, struct brw_instruction *inst) {
 654     switch (type) {
 655     case BRW_REGISTER_TYPE_UD:
 656         format (file, "0x%08xUD", inst->bits3.ud);
 657         break;
 658     case BRW_REGISTER_TYPE_D:
 659         format (file, "%dD", inst->bits3.d);
 660         break;
 661     case BRW_REGISTER_TYPE_UW:
 662         format (file, "0x%04xUW", (uint16_t) inst->bits3.ud);
 663         break;
 664     case BRW_REGISTER_TYPE_W:
 665         format (file, "%dW", (int16_t) inst->bits3.d);
 666         break;
 667     case BRW_REGISTER_TYPE_UB:
 668         format (file, "0x%02xUB", (int8_t) inst->bits3.ud);
 669         break;
 670     case BRW_REGISTER_TYPE_VF:
 671         format (file, "Vector Float");
 672         break;
 673     case BRW_REGISTER_TYPE_V:
 674         format (file, "0x%08xV", inst->bits3.ud);
 675         break;
 676     case BRW_REGISTER_TYPE_F:
 677         format (file, "%-gF", inst->bits3.f);
 678     }
 679     return 0;
 680 }
 681
 682 static int src0 (FILE *file, struct brw_instruction *inst)
 683 {
 684     if (inst->bits1.da1.src0_reg_file == BRW_IMMEDIATE_VALUE)
 685         return imm (file, inst->bits1.da1.src0_reg_type,
 686                     inst);
 687     else if (inst->header.access_mode == BRW_ALIGN_1)
 688     {
 689         if (inst->bits2.da1.src0_address_mode == BRW_ADDRESS_DIRECT)
 690         {
 691             return src_da1 (file,
 692                             inst->bits1.da1.src0_reg_type,
 693                             inst->bits1.da1.src0_reg_file,
 694                             inst->bits2.da1.src0_vert_stride,
 695                             inst->bits2.da1.src0_width,
 696                             inst->bits2.da1.src0_horiz_stride,
 697                             inst->bits2.da1.src0_reg_nr,
 698                             inst->bits2.da1.src0_subreg_nr,
 699                             inst->bits2.da1.src0_abs,
 700                             inst->bits2.da1.src0_negate);
 701         }
 702         else
 703         {
 704             return src_ia1 (file,
 705                             inst->bits1.ia1.src0_reg_type,
 706                             inst->bits1.ia1.src0_reg_file,
 707                             inst->bits2.ia1.src0_indirect_offset,
 708                             inst->bits2.ia1.src0_subreg_nr,
 709                             inst->bits2.ia1.src0_negate,
 710                             inst->bits2.ia1.src0_abs,
 711                             inst->bits2.ia1.src0_address_mode,
 712                             inst->bits2.ia1.src0_horiz_stride,
 713                             inst->bits2.ia1.src0_width,
 714                             inst->bits2.ia1.src0_vert_stride);
 715         }
 716     }
 717     else
 718     {
 719         if (inst->bits2.da16.src0_address_mode == BRW_ADDRESS_DIRECT)
 720         {
 721             return src_da16 (file,
 722                              inst->bits1.da16.src0_reg_type,
 723                              inst->bits1.da16.src0_reg_file,
 724                              inst->bits2.da16.src0_vert_stride,
 725                              inst->bits2.da16.src0_reg_nr,
 726                              inst->bits2.da16.src0_subreg_nr,
 727                              inst->bits2.da16.src0_abs,
 728                              inst->bits2.da16.src0_negate,
 729                              inst->bits2.da16.src0_swz_x,
 730                              inst->bits2.da16.src0_swz_y,
 731                              inst->bits2.da16.src0_swz_z,
 732                              inst->bits2.da16.src0_swz_w);
 733         }
 734         else
 735         {
 736             string (file, "Indirect align16 address mode not supported");
 737             return 1;
 738         }
 739     }
 740 }
 741
 742 static int src1 (FILE *file, struct brw_instruction *inst)
 743 {
 744     if (inst->bits1.da1.src1_reg_file == BRW_IMMEDIATE_VALUE)
 745         return imm (file, inst->bits1.da1.src1_reg_type,
 746                     inst);
 747     else if (inst->header.access_mode == BRW_ALIGN_1)
 748     {
 749         if (inst->bits3.da1.src1_address_mode == BRW_ADDRESS_DIRECT)
 750         {
 751             return src_da1 (file,
 752                             inst->bits1.da1.src1_reg_type,
 753                             inst->bits1.da1.src1_reg_file,
 754                             inst->bits3.da1.src1_vert_stride,
 755                             inst->bits3.da1.src1_width,
 756                             inst->bits3.da1.src1_horiz_stride,
 757                             inst->bits3.da1.src1_reg_nr,
 758                             inst->bits3.da1.src1_subreg_nr,
 759                             inst->bits3.da1.src1_abs,
 760                             inst->bits3.da1.src1_negate);
 761         }
 762         else
 763         {
 764             return src_ia1 (file,
 765                             inst->bits1.ia1.src1_reg_type,
 766                             inst->bits1.ia1.src1_reg_file,
 767                             inst->bits3.ia1.src1_indirect_offset,
 768                             inst->bits3.ia1.src1_subreg_nr,
 769                             inst->bits3.ia1.src1_negate,
 770                             inst->bits3.ia1.src1_abs,
 771                             inst->bits3.ia1.src1_address_mode,
 772                             inst->bits3.ia1.src1_horiz_stride,
 773                             inst->bits3.ia1.src1_width,
 774                             inst->bits3.ia1.src1_vert_stride);
 775         }
 776     }
 777     else
 778     {
 779         if (inst->bits3.da16.src1_address_mode == BRW_ADDRESS_DIRECT)
 780         {
 781             return src_da16 (file,
 782                              inst->bits1.da16.src1_reg_type,
 783                              inst->bits1.da16.src1_reg_file,
 784                              inst->bits3.da16.src1_vert_stride,
 785                              inst->bits3.da16.src1_reg_nr,
 786                              inst->bits3.da16.src1_subreg_nr,
 787                              inst->bits3.da16.src1_abs,
 788                              inst->bits3.da16.src1_negate,
 789                              inst->bits3.da16.src1_swz_x,
 790                              inst->bits3.da16.src1_swz_y,
 791                              inst->bits3.da16.src1_swz_z,
 792                              inst->bits3.da16.src1_swz_w);
 793         }
 794         else
 795         {
 796             string (file, "Indirect align16 address mode not supported");
 797             return 1;
 798         }
 799     }
 800 }
 801
 802 int brw_disasm (FILE *file, struct brw_instruction *inst, int gen)
 803 {
 804     int err = 0;
 805     int space = 0;
 806
 807     if (inst->header.predicate_control) {
 808         string (file, "(");
 809         err |= control (file, "predicate inverse", pred_inv, inst->header.predicate_inverse, NULL);
 810         string (file, "f0");
 811         if (inst->bits2.da1.flag_reg_nr)
 812             format (file, ".%d", inst->bits2.da1.flag_reg_nr);
 813         if (inst->header.access_mode == BRW_ALIGN_1)
 814             err |= control (file, "predicate control align1", pred_ctrl_align1,
 815                             inst->header.predicate_control, NULL);
 816         else
 817             err |= control (file, "predicate control align16", pred_ctrl_align16,
 818                             inst->header.predicate_control, NULL);
 819         string (file, ") ");
 820     }
 821
 822     err |= print_opcode (file, inst->header.opcode);
 823     err |= control (file, "saturate", saturate, inst->header.saturate, NULL);
 824     err |= control (file, "debug control", debug_ctrl, inst->header.debug_control, NULL);
 825
 826     if (inst->header.opcode == BRW_OPCODE_MATH) {
 827         string (file, " ");
 828         err |= control (file, "function", math_function,
 829                         inst->header.destreg__conditionalmod, NULL);
 830     } else if (inst->header.opcode != BRW_OPCODE_SEND)
 831         err |= control (file, "conditional modifier", conditional_modifier,
 832                         inst->header.destreg__conditionalmod, NULL);
 833
 834     if (inst->header.opcode != BRW_OPCODE_NOP) {
 835         string (file, "(");
 836         err |= control (file, "execution size", exec_size, inst->header.execution_size, NULL);
 837         string (file, ")");
 838     }
 839
 840     if (inst->header.opcode == BRW_OPCODE_SEND)
 841         format (file, " %d", inst->header.destreg__conditionalmod);
 842
 843     if (opcode[inst->header.opcode].ndst > 0) {
 844         pad (file, 16);
 845         err |= dest (file, inst);
 846     }
 847     if (opcode[inst->header.opcode].nsrc > 0) {
 848         pad (file, 32);
 849         err |= src0 (file, inst);
 850     }
 851     if (opcode[inst->header.opcode].nsrc > 1) {
 852         pad (file, 48);
 853         err |= src1 (file, inst);
 854     }
 855
 856     if (inst->header.opcode == BRW_OPCODE_SEND) {
 857         int target;
 858
 859         if (gen >= 6)
 860             target = inst->header.destreg__conditionalmod;
 861         else if (gen == 5)
 862             target = inst->bits2.send_gen5.sfid;
 863         else
 864             target = inst->bits3.generic.msg_target;
 865
 866         newline (file);
 867         pad (file, 16);
 868         space = 0;
 869         err |= control (file, "target function", target_function,
 870                         target, &space);
 871
 872         switch (target) {
 873         case BRW_MESSAGE_TARGET_MATH:
 874             err |= control (file, "math function", math_function,
 875                             inst->bits3.math.function, &space);
 876             err |= control (file, "math saturate", math_saturate,
 877                             inst->bits3.math.saturate, &space);
 878             err |= control (file, "math signed", math_signed,
 879                             inst->bits3.math.int_type, &space);
 880             err |= control (file, "math scalar", math_scalar,
 881                             inst->bits3.math.data_type, &space);
 882             err |= control (file, "math precision", math_precision,
 883                             inst->bits3.math.precision, &space);
 884             break;
 885         case BRW_MESSAGE_TARGET_SAMPLER:
 886             format (file, " (%d, %d, ",
 887                     inst->bits3.sampler.binding_table_index,
 888                     inst->bits3.sampler.sampler);
 889             err |= control (file, "sampler target format", sampler_target_format,
 890                             inst->bits3.sampler.return_format, NULL);
 891             string (file, ")");
 892             break;
 893         case BRW_MESSAGE_TARGET_DATAPORT_READ:
 894             if (gen >= 6) {
 895                 format (file, " (%d, %d, %d, %d, %d, %d)",
 896                         inst->bits3.dp_render_cache.binding_table_index,
 897                         inst->bits3.dp_render_cache.msg_control,
 898                         inst->bits3.dp_render_cache.msg_type,
 899                         inst->bits3.dp_render_cache.send_commit_msg,
 900                         inst->bits3.dp_render_cache.msg_length,
 901                         inst->bits3.dp_render_cache.response_length);
 902             } else if (gen >= 5) {
 903                 format (file, " (%d, %d, %d)",
 904                         inst->bits3.dp_read_gen5.binding_table_index,
 905                         inst->bits3.dp_read_gen5.msg_control,
 906                         inst->bits3.dp_read_gen5.msg_type);
 907             } else {
 908                 format (file, " (%d, %d, %d)",
 909                         inst->bits3.dp_read.binding_table_index,
 910                         inst->bits3.dp_read.msg_control,
 911                         inst->bits3.dp_read.msg_type);
 912             }
 913             break;
 914         case BRW_MESSAGE_TARGET_DATAPORT_WRITE:
 915             if (gen >= 6) {
 916                 format (file, " (%d, %d, %d, %d, %d, %d)",
 917                         inst->bits3.dp_render_cache.binding_table_index,
 918                         inst->bits3.dp_render_cache.msg_control,
 919                         inst->bits3.dp_render_cache.msg_type,
 920                         inst->bits3.dp_render_cache.send_commit_msg,
 921                         inst->bits3.dp_render_cache.msg_length,
 922                         inst->bits3.dp_render_cache.response_length);
 923             } else {
 924                 format (file, " (%d, %d, %d, %d)",
 925                         inst->bits3.dp_write.binding_table_index,
 926                         (inst->bits3.dp_write.pixel_scoreboard_clear << 3) |
 927                         inst->bits3.dp_write.msg_control,
 928                         inst->bits3.dp_write.msg_type,
 929                         inst->bits3.dp_write.send_commit_msg);
 930             }
 931             break;
 932         case BRW_MESSAGE_TARGET_URB:
 933             if (gen >= 5) {
 934                 format (file, " %d", inst->bits3.urb_gen5.offset);
 935             } else {
 936                 format (file, " %d", inst->bits3.urb.offset);
 937             }
 938
 939             space = 1;
 940             if (gen >= 5) {
 941                 err |= control (file, "urb opcode", urb_opcode,
 942                                 inst->bits3.urb_gen5.opcode, &space);
 943             }
 944             err |= control (file, "urb swizzle", urb_swizzle,
 945                             inst->bits3.urb.swizzle_control, &space);
 946             err |= control (file, "urb allocate", urb_allocate,
 947                             inst->bits3.urb.allocate, &space);
 948             err |= control (file, "urb used", urb_used,
 949                             inst->bits3.urb.used, &space);
 950             err |= control (file, "urb complete", urb_complete,
 951                             inst->bits3.urb.complete, &space);
 952             if (gen >= 5) {
 953                 format (file, " mlen %d, rlen %d\n",
 954                         inst->bits3.urb_gen5.msg_length,
 955                         inst->bits3.urb_gen5.response_length);
 956             }
 957             break;
 958         case BRW_MESSAGE_TARGET_THREAD_SPAWNER:
 959             break;
 960         default:
 961             format (file, "unsupported target %d", target);
 962             break;
 963         }
 964         if (space)
 965             string (file, " ");
 966         if (gen >= 5) {
 967            format (file, "mlen %d",
 968                    inst->bits3.generic_gen5.msg_length);
 969            format (file, " rlen %d",
 970                    inst->bits3.generic_gen5.response_length);
 971         } else {
 972            format (file, "mlen %d",
 973                    inst->bits3.generic.msg_length);
 974            format (file, " rlen %d",
 975                    inst->bits3.generic.response_length);
 976         }
 977     }
 978     pad (file, 64);
 979     if (inst->header.opcode != BRW_OPCODE_NOP) {
 980         string (file, "{");
 981         space = 1;
 982         err |= control(file, "access mode", access_mode, inst->header.access_mode, &space);
 983         err |= control (file, "mask control", mask_ctrl, inst->header.mask_control, &space);
 984         err |= control (file, "dependency control", dep_ctrl, inst->header.dependency_control, &space);
 985
 986         if (inst->header.compression_control == BRW_COMPRESSION_COMPRESSED &&
 987             opcode[inst->header.opcode].ndst > 0 &&
 988             inst->bits1.da1.dest_reg_file == BRW_MESSAGE_REGISTER_FILE &&
 989             inst->bits1.da1.dest_reg_nr & (1 << 7)) {
 990            format (file, " compr4");
 991         } else {
 992            err |= control (file, "compression control", compr_ctrl,
 993                            inst->header.compression_control, &space);
 994         }
 995         err |= control (file, "thread control", thread_ctrl, inst->header.thread_control, &space);
 996         if (inst->header.opcode == BRW_OPCODE_SEND)
 997             err |= control (file, "end of thread", end_of_thread,
 998                             inst->bits3.generic.end_of_thread, &space);
 999         if (space)
1000             string (file, " ");
1001         string (file, "}");
1002     }
1003     string (file, ";");
1004     newline (file);
1005     return err;
1006 }