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 *accwr[2] = {
 163     [0] = "",
 164     [1] = "AccWrEnable"
 165 };
 166
 167 char *wectrl[2] = {
 168     [0] = "WEnormal",
 169     [1] = "WEpredicted"
 170 };
 171
 172 char *exec_size[8] = {
 173     [0] = "1",
 174     [1] = "2",
 175     [2] = "4",
 176     [3] = "8",
 177     [4] = "16",
 178     [5] = "32"
 179 };
 180
 181 char *pred_inv[2] = {
 182     [0] = "+",
 183     [1] = "-"
 184 };
 185
 186 char *pred_ctrl_align16[16] = {
 187     [1] = "",
 188     [2] = ".x",
 189     [3] = ".y",
 190     [4] = ".z",
 191     [5] = ".w",
 192     [6] = ".any4h",
 193     [7] = ".all4h",
 194 };
 195
 196 char *pred_ctrl_align1[16] = {
 197     [1] = "",
 198     [2] = ".anyv",
 199     [3] = ".allv",
 200     [4] = ".any2h",
 201     [5] = ".all2h",
 202     [6] = ".any4h",
 203     [7] = ".all4h",
 204     [8] = ".any8h",
 205     [9] = ".all8h",
 206     [10] = ".any16h",
 207     [11] = ".all16h",
 208 };
 209
 210 char *thread_ctrl[4] = {
 211     [0] = "",
 212     [2] = "switch"
 213 };
 214
 215 char *compr_ctrl[4] = {
 216     [0] = "",
 217     [1] = "sechalf",
 218     [2] = "compr",
 219     [3] = "compr4",
 220 };
 221
 222 char *dep_ctrl[4] = {
 223     [0] = "",
 224     [1] = "NoDDClr",
 225     [2] = "NoDDChk",
 226     [3] = "NoDDClr,NoDDChk",
 227 };
 228
 229 char *mask_ctrl[4] = {
 230     [0] = "",
 231     [1] = "nomask",
 232 };
 233
 234 char *access_mode[2] = {
 235     [0] = "align1",
 236     [1] = "align16",
 237 };
 238
 239 char *reg_encoding[8] = {
 240     [0] = "UD",
 241     [1] = "D",
 242     [2] = "UW",
 243     [3] = "W",
 244     [4] = "UB",
 245     [5] = "B",
 246     [7] = "F"
 247 };
 248
 249 int reg_type_size[8] = {
 250     [0] = 4,
 251     [1] = 4,
 252     [2] = 2,
 253     [3] = 2,
 254     [4] = 1,
 255     [5] = 1,
 256     [7] = 4
 257 };
 258
 259 char *imm_encoding[8] = {
 260     [0] = "UD",
 261     [1] = "D",
 262     [2] = "UW",
 263     [3] = "W",
 264     [5] = "VF",
 265     [6] = "V",
 266     [7] = "F"
 267 };
 268
 269 char *reg_file[4] = {
 270     [0] = "A",
 271     [1] = "g",
 272     [2] = "m",
 273     [3] = "imm",
 274 };
 275
 276 char *writemask[16] = {
 277     [0x0] = ".",
 278     [0x1] = ".x",
 279     [0x2] = ".y",
 280     [0x3] = ".xy",
 281     [0x4] = ".z",
 282     [0x5] = ".xz",
 283     [0x6] = ".yz",
 284     [0x7] = ".xyz",
 285     [0x8] = ".w",
 286     [0x9] = ".xw",
 287     [0xa] = ".yw",
 288     [0xb] = ".xyw",
 289     [0xc] = ".zw",
 290     [0xd] = ".xzw",
 291     [0xe] = ".yzw",
 292     [0xf] = "",
 293 };
 294
 295 char *end_of_thread[2] = {
 296     [0] = "",
 297     [1] = "EOT"
 298 };
 299
 300 char *target_function[16] = {
 301     [BRW_MESSAGE_TARGET_NULL] = "null",
 302     [BRW_MESSAGE_TARGET_MATH] = "math",
 303     [BRW_MESSAGE_TARGET_SAMPLER] = "sampler",
 304     [BRW_MESSAGE_TARGET_GATEWAY] = "gateway",
 305     [BRW_MESSAGE_TARGET_DATAPORT_READ] = "read",
 306     [BRW_MESSAGE_TARGET_DATAPORT_WRITE] = "write",
 307     [BRW_MESSAGE_TARGET_URB] = "urb",
 308     [BRW_MESSAGE_TARGET_THREAD_SPAWNER] = "thread_spawner"
 309 };
 310
 311 char *math_function[16] = {
 312     [BRW_MATH_FUNCTION_INV] = "inv",
 313     [BRW_MATH_FUNCTION_LOG] = "log",
 314     [BRW_MATH_FUNCTION_EXP] = "exp",
 315     [BRW_MATH_FUNCTION_SQRT] = "sqrt",
 316     [BRW_MATH_FUNCTION_RSQ] = "rsq",
 317     [BRW_MATH_FUNCTION_SIN] = "sin",
 318     [BRW_MATH_FUNCTION_COS] = "cos",
 319     [BRW_MATH_FUNCTION_SINCOS] = "sincos",
 320     [BRW_MATH_FUNCTION_TAN] = "tan",
 321     [BRW_MATH_FUNCTION_POW] = "pow",
 322     [BRW_MATH_FUNCTION_INT_DIV_QUOTIENT_AND_REMAINDER] = "intdivmod",
 323     [BRW_MATH_FUNCTION_INT_DIV_QUOTIENT] = "intmod",
 324     [BRW_MATH_FUNCTION_INT_DIV_REMAINDER] = "intdiv",
 325 };
 326
 327 char *math_saturate[2] = {
 328     [0] = "",
 329     [1] = "sat"
 330 };
 331
 332 char *math_signed[2] = {
 333     [0] = "",
 334     [1] = "signed"
 335 };
 336
 337 char *math_scalar[2] = {
 338     [0] = "",
 339     [1] = "scalar"
 340 };
 341
 342 char *math_precision[2] = {
 343     [0] = "",
 344     [1] = "partial_precision"
 345 };
 346
 347 char *urb_opcode[2] = {
 348     [0] = "urb_write",
 349     [1] = "ff_sync",
 350 };
 351
 352 char *urb_swizzle[4] = {
 353     [BRW_URB_SWIZZLE_NONE] = "",
 354     [BRW_URB_SWIZZLE_INTERLEAVE] = "interleave",
 355     [BRW_URB_SWIZZLE_TRANSPOSE] = "transpose",
 356 };
 357
 358 char *urb_allocate[2] = {
 359     [0] = "",
 360     [1] = "allocate"
 361 };
 362
 363 char *urb_used[2] = {
 364     [0] = "",
 365     [1] = "used"
 366 };
 367
 368 char *urb_complete[2] = {
 369     [0] = "",
 370     [1] = "complete"
 371 };
 372
 373 char *sampler_target_format[4] = {
 374     [0] = "F",
 375     [2] = "UD",
 376     [3] = "D"
 377 };
 378
 379
 380 static int column;
 381
 382 static int string (FILE *file, char *string)
 383 {
 384     fputs (string, file);
 385     column += strlen (string);
 386     return 0;
 387 }
 388
 389 static int format (FILE *f, char *format, ...)
 390 {
 391     char    buf[1024];
 392     va_list     args;
 393     va_start (args, format);
 394
 395     vsnprintf (buf, sizeof (buf) - 1, format, args);
 396     va_end (args);
 397     string (f, buf);
 398     return 0;
 399 }
 400
 401 static int newline (FILE *f)
 402 {
 403     putc ('\n', f);
 404     column = 0;
 405     return 0;
 406 }
 407
 408 static int pad (FILE *f, int c)
 409 {
 410     do
 411         string (f, " ");
 412     while (column < c);
 413     return 0;
 414 }
 415
 416 static int control (FILE *file, char *name, char *ctrl[], GLuint id, int *space)
 417 {
 418     if (!ctrl[id]) {
 419         fprintf (file, "*** invalid %s value %d ",
 420                  name, id);
 421         return 1;
 422     }
 423     if (ctrl[id][0])
 424     {
 425         if (space && *space)
 426             string (file, " ");
 427         string (file, ctrl[id]);
 428         if (space)
 429             *space = 1;
 430     }
 431     return 0;
 432 }
 433
 434 static int print_opcode (FILE *file, int id)
 435 {
 436     if (!opcode[id].name) {
 437         format (file, "*** invalid opcode value %d ", id);
 438         return 1;
 439     }
 440     string (file, opcode[id].name);
 441     return 0;
 442 }
 443
 444 static int reg (FILE *file, GLuint _reg_file, GLuint _reg_nr)
 445 {
 446     int err = 0;
 447
 448     /* Clear the Compr4 instruction compression bit. */
 449     if (_reg_file == BRW_MESSAGE_REGISTER_FILE)
 450        _reg_nr &= ~(1 << 7);
 451
 452     if (_reg_file == BRW_ARCHITECTURE_REGISTER_FILE) {
 453         switch (_reg_nr & 0xf0) {
 454         case BRW_ARF_NULL:
 455             string (file, "null");
 456             return -1;
 457         case BRW_ARF_ADDRESS:
 458             format (file, "a%d", _reg_nr & 0x0f);
 459             break;
 460         case BRW_ARF_ACCUMULATOR:
 461             format (file, "acc%d", _reg_nr & 0x0f);
 462             break;
 463         case BRW_ARF_MASK:
 464             format (file, "mask%d", _reg_nr & 0x0f);
 465             break;
 466         case BRW_ARF_MASK_STACK:
 467             format (file, "msd%d", _reg_nr & 0x0f);
 468             break;
 469         case BRW_ARF_STATE:
 470             format (file, "sr%d", _reg_nr & 0x0f);
 471             break;
 472         case BRW_ARF_CONTROL:
 473             format (file, "cr%d", _reg_nr & 0x0f);
 474             break;
 475         case BRW_ARF_NOTIFICATION_COUNT:
 476             format (file, "n%d", _reg_nr & 0x0f);
 477             break;
 478         case BRW_ARF_IP:
 479             string (file, "ip");
 480             return -1;
 481             break;
 482         default:
 483             format (file, "ARF%d", _reg_nr);
 484             break;
 485         }
 486     } else {
 487         err  |= control (file, "src reg file", reg_file, _reg_file, NULL);
 488         format (file, "%d", _reg_nr);
 489     }
 490     return err;
 491 }
 492
 493 static int dest (FILE *file, struct brw_instruction *inst)
 494 {
 495     int err = 0;
 496
 497     if (inst->header.access_mode == BRW_ALIGN_1)
 498     {
 499         if (inst->bits1.da1.dest_address_mode == BRW_ADDRESS_DIRECT)
 500         {
 501             err |= reg (file, inst->bits1.da1.dest_reg_file, inst->bits1.da1.dest_reg_nr);
 502             if (err == -1)
 503                 return 0;
 504             if (inst->bits1.da1.dest_subreg_nr)
 505                 format (file, ".%d", inst->bits1.da1.dest_subreg_nr /
 506                                      reg_type_size[inst->bits1.da1.dest_reg_type]);
 507             format (file, "<%d>", inst->bits1.da1.dest_horiz_stride);
 508             err |= control (file, "dest reg encoding", reg_encoding, inst->bits1.da1.dest_reg_type, NULL);
 509         }
 510         else
 511         {
 512             string (file, "g[a0");
 513             if (inst->bits1.ia1.dest_subreg_nr)
 514                 format (file, ".%d", inst->bits1.ia1.dest_subreg_nr /
 515                                         reg_type_size[inst->bits1.ia1.dest_reg_type]);
 516             if (inst->bits1.ia1.dest_indirect_offset)
 517                 format (file, " %d", inst->bits1.ia1.dest_indirect_offset);
 518             string (file, "]");
 519             format (file, "<%d>", inst->bits1.ia1.dest_horiz_stride);
 520             err |= control (file, "dest reg encoding", reg_encoding, inst->bits1.ia1.dest_reg_type, NULL);
 521         }
 522     }
 523     else
 524     {
 525         if (inst->bits1.da16.dest_address_mode == BRW_ADDRESS_DIRECT)
 526         {
 527             err |= reg (file, inst->bits1.da16.dest_reg_file, inst->bits1.da16.dest_reg_nr);
 528             if (err == -1)
 529                 return 0;
 530             if (inst->bits1.da16.dest_subreg_nr)
 531                 format (file, ".%d", inst->bits1.da16.dest_subreg_nr /
 532                                      reg_type_size[inst->bits1.da16.dest_reg_type]);
 533             string (file, "<1>");
 534             err |= control (file, "writemask", writemask, inst->bits1.da16.dest_writemask, NULL);
 535             err |= control (file, "dest reg encoding", reg_encoding, inst->bits1.da16.dest_reg_type, NULL);
 536         }
 537         else
 538         {
 539             err = 1;
 540             string (file, "Indirect align16 address mode not supported");
 541         }
 542     }
 543
 544     return 0;
 545 }
 546
 547 static int src_align1_region (FILE *file,
 548                               GLuint _vert_stride, GLuint _width, GLuint _horiz_stride)
 549 {
 550     int err = 0;
 551     string (file, "<");
 552     err |= control (file, "vert stride", vert_stride, _vert_stride, NULL);
 553     string (file, ",");
 554     err |= control (file, "width", width, _width, NULL);
 555     string (file, ",");
 556     err |= control (file, "horiz_stride", horiz_stride, _horiz_stride, NULL);
 557     string (file, ">");
 558     return err;
 559 }
 560
 561 static int src_da1 (FILE *file, GLuint type, GLuint _reg_file,
 562                     GLuint _vert_stride, GLuint _width, GLuint _horiz_stride,
 563                     GLuint reg_num, GLuint sub_reg_num, GLuint __abs, GLuint _negate)
 564 {
 565     int err = 0;
 566     err |= control (file, "negate", negate, _negate, NULL);
 567     err |= control (file, "abs", _abs, __abs, NULL);
 568
 569     err |= reg (file, _reg_file, reg_num);
 570     if (err == -1)
 571         return 0;
 572     if (sub_reg_num)
 573         format (file, ".%d", sub_reg_num / reg_type_size[type]); /* use formal style like spec */
 574     src_align1_region (file, _vert_stride, _width, _horiz_stride);
 575     err |= control (file, "src reg encoding", reg_encoding, type, NULL);
 576     return err;
 577 }
 578
 579 static int src_ia1 (FILE *file,
 580                     GLuint type,
 581                     GLuint _reg_file,
 582                     GLint _addr_imm,
 583                     GLuint _addr_subreg_nr,
 584                     GLuint _negate,
 585                     GLuint __abs,
 586                     GLuint _addr_mode,
 587                     GLuint _horiz_stride,
 588                     GLuint _width,
 589                     GLuint _vert_stride)
 590 {
 591     int err = 0;
 592     err |= control (file, "negate", negate, _negate, NULL);
 593     err |= control (file, "abs", _abs, __abs, NULL);
 594
 595     string (file, "g[a0");
 596     if (_addr_subreg_nr)
 597         format (file, ".%d", _addr_subreg_nr);
 598     if (_addr_imm)
 599         format (file, " %d", _addr_imm);
 600     string (file, "]");
 601     src_align1_region (file, _vert_stride, _width, _horiz_stride);
 602     err |= control (file, "src reg encoding", reg_encoding, type, NULL);
 603     return err;
 604 }
 605
 606 static int src_da16 (FILE *file,
 607                      GLuint _reg_type,
 608                      GLuint _reg_file,
 609                      GLuint _vert_stride,
 610                      GLuint _reg_nr,
 611                      GLuint _subreg_nr,
 612                      GLuint __abs,
 613                      GLuint _negate,
 614                      GLuint swz_x,
 615                      GLuint swz_y,
 616                      GLuint swz_z,
 617                      GLuint swz_w)
 618 {
 619     int err = 0;
 620     err |= control (file, "negate", negate, _negate, NULL);
 621     err |= control (file, "abs", _abs, __abs, NULL);
 622
 623     err |= reg (file, _reg_file, _reg_nr);
 624     if (err == -1)
 625         return 0;
 626     if (_subreg_nr)
 627         /* bit4 for subreg number byte addressing. Make this same meaning as
 628            in da1 case, so output looks consistent. */
 629         format (file, ".%d", 16 / reg_type_size[_reg_type]);
 630     string (file, "<");
 631     err |= control (file, "vert stride", vert_stride, _vert_stride, NULL);
 632     string (file, ",4,1>");
 633     /*
 634      * Three kinds of swizzle display:
 635      *  identity - nothing printed
 636      *  1->all   - print the single channel
 637      *  1->1     - print the mapping
 638      */
 639     if (swz_x == BRW_CHANNEL_X &&
 640         swz_y == BRW_CHANNEL_Y &&
 641         swz_z == BRW_CHANNEL_Z &&
 642         swz_w == BRW_CHANNEL_W)
 643     {
 644         ;
 645     }
 646     else if (swz_x == swz_y && swz_x == swz_z && swz_x == swz_w)
 647     {
 648         string (file, ".");
 649         err |= control (file, "channel select", chan_sel, swz_x, NULL);
 650     }
 651     else
 652     {
 653         string (file, ".");
 654         err |= control (file, "channel select", chan_sel, swz_x, NULL);
 655         err |= control (file, "channel select", chan_sel, swz_y, NULL);
 656         err |= control (file, "channel select", chan_sel, swz_z, NULL);
 657         err |= control (file, "channel select", chan_sel, swz_w, NULL);
 658     }
 659     err |= control (file, "src da16 reg type", reg_encoding, _reg_type, NULL);
 660     return err;
 661 }
 662
 663
 664 static int imm (FILE *file, GLuint type, struct brw_instruction *inst) {
 665     switch (type) {
 666     case BRW_REGISTER_TYPE_UD:
 667         format (file, "0x%08xUD", inst->bits3.ud);
 668         break;
 669     case BRW_REGISTER_TYPE_D:
 670         format (file, "%dD", inst->bits3.d);
 671         break;
 672     case BRW_REGISTER_TYPE_UW:
 673         format (file, "0x%04xUW", (uint16_t) inst->bits3.ud);
 674         break;
 675     case BRW_REGISTER_TYPE_W:
 676         format (file, "%dW", (int16_t) inst->bits3.d);
 677         break;
 678     case BRW_REGISTER_TYPE_UB:
 679         format (file, "0x%02xUB", (int8_t) inst->bits3.ud);
 680         break;
 681     case BRW_REGISTER_TYPE_VF:
 682         format (file, "Vector Float");
 683         break;
 684     case BRW_REGISTER_TYPE_V:
 685         format (file, "0x%08xV", inst->bits3.ud);
 686         break;
 687     case BRW_REGISTER_TYPE_F:
 688         format (file, "%-gF", inst->bits3.f);
 689     }
 690     return 0;
 691 }
 692
 693 static int src0 (FILE *file, struct brw_instruction *inst)
 694 {
 695     if (inst->bits1.da1.src0_reg_file == BRW_IMMEDIATE_VALUE)
 696         return imm (file, inst->bits1.da1.src0_reg_type,
 697                     inst);
 698     else if (inst->header.access_mode == BRW_ALIGN_1)
 699     {
 700         if (inst->bits2.da1.src0_address_mode == BRW_ADDRESS_DIRECT)
 701         {
 702             return src_da1 (file,
 703                             inst->bits1.da1.src0_reg_type,
 704                             inst->bits1.da1.src0_reg_file,
 705                             inst->bits2.da1.src0_vert_stride,
 706                             inst->bits2.da1.src0_width,
 707                             inst->bits2.da1.src0_horiz_stride,
 708                             inst->bits2.da1.src0_reg_nr,
 709                             inst->bits2.da1.src0_subreg_nr,
 710                             inst->bits2.da1.src0_abs,
 711                             inst->bits2.da1.src0_negate);
 712         }
 713         else
 714         {
 715             return src_ia1 (file,
 716                             inst->bits1.ia1.src0_reg_type,
 717                             inst->bits1.ia1.src0_reg_file,
 718                             inst->bits2.ia1.src0_indirect_offset,
 719                             inst->bits2.ia1.src0_subreg_nr,
 720                             inst->bits2.ia1.src0_negate,
 721                             inst->bits2.ia1.src0_abs,
 722                             inst->bits2.ia1.src0_address_mode,
 723                             inst->bits2.ia1.src0_horiz_stride,
 724                             inst->bits2.ia1.src0_width,
 725                             inst->bits2.ia1.src0_vert_stride);
 726         }
 727     }
 728     else
 729     {
 730         if (inst->bits2.da16.src0_address_mode == BRW_ADDRESS_DIRECT)
 731         {
 732             return src_da16 (file,
 733                              inst->bits1.da16.src0_reg_type,
 734                              inst->bits1.da16.src0_reg_file,
 735                              inst->bits2.da16.src0_vert_stride,
 736                              inst->bits2.da16.src0_reg_nr,
 737                              inst->bits2.da16.src0_subreg_nr,
 738                              inst->bits2.da16.src0_abs,
 739                              inst->bits2.da16.src0_negate,
 740                              inst->bits2.da16.src0_swz_x,
 741                              inst->bits2.da16.src0_swz_y,
 742                              inst->bits2.da16.src0_swz_z,
 743                              inst->bits2.da16.src0_swz_w);
 744         }
 745         else
 746         {
 747             string (file, "Indirect align16 address mode not supported");
 748             return 1;
 749         }
 750     }
 751 }
 752
 753 static int src1 (FILE *file, struct brw_instruction *inst)
 754 {
 755     if (inst->bits1.da1.src1_reg_file == BRW_IMMEDIATE_VALUE)
 756         return imm (file, inst->bits1.da1.src1_reg_type,
 757                     inst);
 758     else if (inst->header.access_mode == BRW_ALIGN_1)
 759     {
 760         if (inst->bits3.da1.src1_address_mode == BRW_ADDRESS_DIRECT)
 761         {
 762             return src_da1 (file,
 763                             inst->bits1.da1.src1_reg_type,
 764                             inst->bits1.da1.src1_reg_file,
 765                             inst->bits3.da1.src1_vert_stride,
 766                             inst->bits3.da1.src1_width,
 767                             inst->bits3.da1.src1_horiz_stride,
 768                             inst->bits3.da1.src1_reg_nr,
 769                             inst->bits3.da1.src1_subreg_nr,
 770                             inst->bits3.da1.src1_abs,
 771                             inst->bits3.da1.src1_negate);
 772         }
 773         else
 774         {
 775             return src_ia1 (file,
 776                             inst->bits1.ia1.src1_reg_type,
 777                             inst->bits1.ia1.src1_reg_file,
 778                             inst->bits3.ia1.src1_indirect_offset,
 779                             inst->bits3.ia1.src1_subreg_nr,
 780                             inst->bits3.ia1.src1_negate,
 781                             inst->bits3.ia1.src1_abs,
 782                             inst->bits3.ia1.src1_address_mode,
 783                             inst->bits3.ia1.src1_horiz_stride,
 784                             inst->bits3.ia1.src1_width,
 785                             inst->bits3.ia1.src1_vert_stride);
 786         }
 787     }
 788     else
 789     {
 790         if (inst->bits3.da16.src1_address_mode == BRW_ADDRESS_DIRECT)
 791         {
 792             return src_da16 (file,
 793                              inst->bits1.da16.src1_reg_type,
 794                              inst->bits1.da16.src1_reg_file,
 795                              inst->bits3.da16.src1_vert_stride,
 796                              inst->bits3.da16.src1_reg_nr,
 797                              inst->bits3.da16.src1_subreg_nr,
 798                              inst->bits3.da16.src1_abs,
 799                              inst->bits3.da16.src1_negate,
 800                              inst->bits3.da16.src1_swz_x,
 801                              inst->bits3.da16.src1_swz_y,
 802                              inst->bits3.da16.src1_swz_z,
 803                              inst->bits3.da16.src1_swz_w);
 804         }
 805         else
 806         {
 807             string (file, "Indirect align16 address mode not supported");
 808             return 1;
 809         }
 810     }
 811 }
 812
 813 int esize[6] = {
 814         [0] = 1,
 815         [1] = 2,
 816         [2] = 4,
 817         [3] = 8,
 818         [4] = 16,
 819         [5] = 32,
 820 };
 821
 822 static int qtr_ctrl(FILE *file, struct brw_instruction *inst)
 823 {
 824     int qtr_ctl = inst->header.compression_control;
 825     int exec_size = esize[inst->header.execution_size];
 826
 827     if (exec_size == 8) {
 828         switch (qtr_ctl) {
 829         case 0:
 830             string (file, " 1Q");
 831             break;
 832         case 1:
 833             string (file, " 2Q");
 834             break;
 835         case 2:
 836             string (file, " 3Q");
 837             break;
 838         case 3:
 839             string (file, " 4Q");
 840             break;
 841         }
 842     } else if (exec_size == 16){
 843         if (qtr_ctl < 2)
 844             string (file, " 1H");
 845         else
 846             string (file, " 2H");
 847     }
 848     return 0;
 849 }
 850
 851 int brw_disasm (FILE *file, struct brw_instruction *inst, int gen)
 852 {
 853     int err = 0;
 854     int space = 0;
 855
 856     if (inst->header.predicate_control) {
 857         string (file, "(");
 858         err |= control (file, "predicate inverse", pred_inv, inst->header.predicate_inverse, NULL);
 859         string (file, "f0");
 860         if (inst->bits2.da1.flag_reg_nr)
 861             format (file, ".%d", inst->bits2.da1.flag_reg_nr);
 862         if (inst->header.access_mode == BRW_ALIGN_1)
 863             err |= control (file, "predicate control align1", pred_ctrl_align1,
 864                             inst->header.predicate_control, NULL);
 865         else
 866             err |= control (file, "predicate control align16", pred_ctrl_align16,
 867                             inst->header.predicate_control, NULL);
 868         string (file, ") ");
 869     }
 870
 871     err |= print_opcode (file, inst->header.opcode);
 872     err |= control (file, "saturate", saturate, inst->header.saturate, NULL);
 873     err |= control (file, "debug control", debug_ctrl, inst->header.debug_control, NULL);
 874
 875     if (inst->header.opcode == BRW_OPCODE_MATH) {
 876         string (file, " ");
 877         err |= control (file, "function", math_function,
 878                         inst->header.destreg__conditionalmod, NULL);
 879     } else if (inst->header.opcode != BRW_OPCODE_SEND)
 880         err |= control (file, "conditional modifier", conditional_modifier,
 881                         inst->header.destreg__conditionalmod, NULL);
 882
 883     if (inst->header.opcode != BRW_OPCODE_NOP) {
 884         string (file, "(");
 885         err |= control (file, "execution size", exec_size, inst->header.execution_size, NULL);
 886         string (file, ")");
 887     }
 888
 889     if (inst->header.opcode == BRW_OPCODE_SEND && gen < 6)
 890         format (file, " %d", inst->header.destreg__conditionalmod);
 891
 892     if (opcode[inst->header.opcode].ndst > 0) {
 893         pad (file, 16);
 894         err |= dest (file, inst);
 895     } else if (gen >= 6 && (inst->header.opcode == BRW_OPCODE_IF ||
 896                             inst->header.opcode == BRW_OPCODE_ELSE ||
 897                             inst->header.opcode == BRW_OPCODE_ENDIF)) {
 898        format (file, " %d", inst->bits1.branch_gen6.jump_count);
 899     }
 900
 901     if (opcode[inst->header.opcode].nsrc > 0) {
 902         pad (file, 32);
 903         err |= src0 (file, inst);
 904     }
 905     if (opcode[inst->header.opcode].nsrc > 1) {
 906         pad (file, 48);
 907         err |= src1 (file, inst);
 908     }
 909
 910     if (inst->header.opcode == BRW_OPCODE_SEND) {
 911         int target;
 912
 913         if (gen >= 6)
 914             target = inst->header.destreg__conditionalmod;
 915         else if (gen == 5)
 916             target = inst->bits2.send_gen5.sfid;
 917         else
 918             target = inst->bits3.generic.msg_target;
 919
 920         newline (file);
 921         pad (file, 16);
 922         space = 0;
 923         err |= control (file, "target function", target_function,
 924                         target, &space);
 925
 926         switch (target) {
 927         case BRW_MESSAGE_TARGET_MATH:
 928             err |= control (file, "math function", math_function,
 929                             inst->bits3.math.function, &space);
 930             err |= control (file, "math saturate", math_saturate,
 931                             inst->bits3.math.saturate, &space);
 932             err |= control (file, "math signed", math_signed,
 933                             inst->bits3.math.int_type, &space);
 934             err |= control (file, "math scalar", math_scalar,
 935                             inst->bits3.math.data_type, &space);
 936             err |= control (file, "math precision", math_precision,
 937                             inst->bits3.math.precision, &space);
 938             break;
 939         case BRW_MESSAGE_TARGET_SAMPLER:
 940             if (gen >= 5) {
 941                 format (file, " (%d, %d, %d, %d)",
 942                         inst->bits3.sampler_gen5.binding_table_index,
 943                         inst->bits3.sampler_gen5.sampler,
 944                         inst->bits3.sampler_gen5.msg_type,
 945                         inst->bits3.sampler_gen5.simd_mode);
 946             } else if (0 /* FINISHME: is_g4x */) {
 947                 format (file, " (%d, %d)",
 948                         inst->bits3.sampler_g4x.binding_table_index,
 949                         inst->bits3.sampler_g4x.sampler);
 950             } else {
 951                 format (file, " (%d, %d, ",
 952                         inst->bits3.sampler.binding_table_index,
 953                         inst->bits3.sampler.sampler);
 954                 err |= control (file, "sampler target format",
 955                                 sampler_target_format,
 956                                 inst->bits3.sampler.return_format, NULL);
 957                 string (file, ")");
 958             }
 959             break;
 960         case BRW_MESSAGE_TARGET_DATAPORT_READ:
 961             if (gen >= 6) {
 962                 format (file, " (%d, %d, %d, %d, %d, %d)",
 963                         inst->bits3.dp_render_cache.binding_table_index,
 964                         inst->bits3.dp_render_cache.msg_control,
 965                         inst->bits3.dp_render_cache.msg_type,
 966                         inst->bits3.dp_render_cache.send_commit_msg,
 967                         inst->bits3.dp_render_cache.msg_length,
 968                         inst->bits3.dp_render_cache.response_length);
 969             } else if (gen >= 5) {
 970                 format (file, " (%d, %d, %d)",
 971                         inst->bits3.dp_read_gen5.binding_table_index,
 972                         inst->bits3.dp_read_gen5.msg_control,
 973                         inst->bits3.dp_read_gen5.msg_type);
 974             } else {
 975                 format (file, " (%d, %d, %d)",
 976                         inst->bits3.dp_read.binding_table_index,
 977                         inst->bits3.dp_read.msg_control,
 978                         inst->bits3.dp_read.msg_type);
 979             }
 980             break;
 981         case BRW_MESSAGE_TARGET_DATAPORT_WRITE:
 982             if (gen >= 6) {
 983                 format (file, " (%d, %d, %d, %d, %d, %d)",
 984                         inst->bits3.dp_render_cache.binding_table_index,
 985                         inst->bits3.dp_render_cache.msg_control,
 986                         inst->bits3.dp_render_cache.msg_type,
 987                         inst->bits3.dp_render_cache.send_commit_msg,
 988                         inst->bits3.dp_render_cache.msg_length,
 989                         inst->bits3.dp_render_cache.response_length);
 990             } else {
 991                 format (file, " (%d, %d, %d, %d)",
 992                         inst->bits3.dp_write.binding_table_index,
 993                         (inst->bits3.dp_write.pixel_scoreboard_clear << 3) |
 994                         inst->bits3.dp_write.msg_control,
 995                         inst->bits3.dp_write.msg_type,
 996                         inst->bits3.dp_write.send_commit_msg);
 997             }
 998             break;
 999         case BRW_MESSAGE_TARGET_URB:
1000             if (gen >= 5) {
1001                 format (file, " %d", inst->bits3.urb_gen5.offset);
1002             } else {
1003                 format (file, " %d", inst->bits3.urb.offset);
1004             }
1005
1006             space = 1;
1007             if (gen >= 5) {
1008                 err |= control (file, "urb opcode", urb_opcode,
1009                                 inst->bits3.urb_gen5.opcode, &space);
1010             }
1011             err |= control (file, "urb swizzle", urb_swizzle,
1012                             inst->bits3.urb.swizzle_control, &space);
1013             err |= control (file, "urb allocate", urb_allocate,
1014                             inst->bits3.urb.allocate, &space);
1015             err |= control (file, "urb used", urb_used,
1016                             inst->bits3.urb.used, &space);
1017             err |= control (file, "urb complete", urb_complete,
1018                             inst->bits3.urb.complete, &space);
1019             if (gen >= 5) {
1020                 format (file, " mlen %d, rlen %d\n",
1021                         inst->bits3.urb_gen5.msg_length,
1022                         inst->bits3.urb_gen5.response_length);
1023             }
1024             break;
1025         case BRW_MESSAGE_TARGET_THREAD_SPAWNER:
1026             break;
1027         default:
1028             format (file, "unsupported target %d", target);
1029             break;
1030         }
1031         if (space)
1032             string (file, " ");
1033         if (gen >= 5) {
1034            format (file, "mlen %d",
1035                    inst->bits3.generic_gen5.msg_length);
1036            format (file, " rlen %d",
1037                    inst->bits3.generic_gen5.response_length);
1038         } else {
1039            format (file, "mlen %d",
1040                    inst->bits3.generic.msg_length);
1041            format (file, " rlen %d",
1042                    inst->bits3.generic.response_length);
1043         }
1044     }
1045     pad (file, 64);
1046     if (inst->header.opcode != BRW_OPCODE_NOP) {
1047         string (file, "{");
1048         space = 1;
1049         err |= control(file, "access mode", access_mode, inst->header.access_mode, &space);
1050         if (gen >= 6)
1051             err |= control (file, "write enable control", wectrl, inst->header.mask_control, &space);
1052         else
1053             err |= control (file, "mask control", mask_ctrl, inst->header.mask_control, &space);
1054         err |= control (file, "dependency control", dep_ctrl, inst->header.dependency_control, &space);
1055
1056         if (gen >= 6)
1057             err |= qtr_ctrl (file, inst);
1058         else {
1059             if (inst->header.compression_control == BRW_COMPRESSION_COMPRESSED &&
1060                 opcode[inst->header.opcode].ndst > 0 &&
1061                 inst->bits1.da1.dest_reg_file == BRW_MESSAGE_REGISTER_FILE &&
1062                 inst->bits1.da1.dest_reg_nr & (1 << 7)) {
1063                 format (file, " compr4");
1064             } else {
1065                 err |= control (file, "compression control", compr_ctrl,
1066                                 inst->header.compression_control, &space);
1067             }
1068         }
1069
1070         err |= control (file, "thread control", thread_ctrl, inst->header.thread_control, &space);
1071         if (gen >= 6)
1072             err |= control (file, "acc write control", accwr, inst->header.acc_wr_control, &space);
1073         if (inst->header.opcode == BRW_OPCODE_SEND)
1074             err |= control (file, "end of thread", end_of_thread,
1075                             inst->bits3.generic.end_of_thread, &space);
1076         if (space)
1077             string (file, " ");
1078         string (file, "}");
1079     }
1080     string (file, ";");
1081     newline (file);
1082     return err;
1083 }