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