src/broadcom/compiler/vir_dump.c

   1 /*
   2  * Copyright © 2016-2017 Broadcom
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  21  * IN THE SOFTWARE.
  22  */
  23
  24 #include "broadcom/common/v3d_device_info.h"
  25 #include "v3d_compiler.h"
  26
  27 /* Prints a human-readable description of the uniform reference. */
  28 void
  29 vir_dump_uniform(enum quniform_contents contents,
  30                  uint32_t data)
  31 {
  32         static const char *quniform_names[] = {
  33                 [QUNIFORM_ALPHA_REF] = "alpha_ref",
  34                 [QUNIFORM_VIEWPORT_X_SCALE] = "vp_x_scale",
  35                 [QUNIFORM_VIEWPORT_Y_SCALE] = "vp_y_scale",
  36                 [QUNIFORM_VIEWPORT_Z_OFFSET] = "vp_z_offset",
  37                 [QUNIFORM_VIEWPORT_Z_SCALE] = "vp_z_scale",
  38                 [QUNIFORM_SHARED_OFFSET] = "shared_offset",
  39         };
  40
  41         switch (contents) {
  42         case QUNIFORM_CONSTANT:
  43                 fprintf(stderr, "0x%08x / %f", data, uif(data));
  44                 break;
  45
  46         case QUNIFORM_UNIFORM:
  47                 fprintf(stderr, "push[%d]", data);
  48                 break;
  49
  50         case QUNIFORM_TEXTURE_CONFIG_P1:
  51                 fprintf(stderr, "tex[%d].p1", data);
  52                 break;
  53
  54         case QUNIFORM_TMU_CONFIG_P0:
  55                 fprintf(stderr, "tex[%d].p0 | 0x%x",
  56                         v3d_unit_data_get_unit(data),
  57                         v3d_unit_data_get_offset(data));
  58                 break;
  59
  60         case QUNIFORM_TMU_CONFIG_P1:
  61                 fprintf(stderr, "tex[%d].p1 | 0x%x",
  62                         v3d_unit_data_get_unit(data),
  63                         v3d_unit_data_get_offset(data));
  64                 break;
  65
  66         case QUNIFORM_IMAGE_TMU_CONFIG_P0:
  67                 fprintf(stderr, "img[%d].p0 | 0x%x",
  68                         v3d_unit_data_get_unit(data),
  69                         v3d_unit_data_get_offset(data));
  70                 break;
  71
  72         case QUNIFORM_TEXTURE_WIDTH:
  73                 fprintf(stderr, "tex[%d].width", data);
  74                 break;
  75         case QUNIFORM_TEXTURE_HEIGHT:
  76                 fprintf(stderr, "tex[%d].height", data);
  77                 break;
  78         case QUNIFORM_TEXTURE_DEPTH:
  79                 fprintf(stderr, "tex[%d].depth", data);
  80                 break;
  81         case QUNIFORM_TEXTURE_ARRAY_SIZE:
  82                 fprintf(stderr, "tex[%d].array_size", data);
  83                 break;
  84         case QUNIFORM_TEXTURE_LEVELS:
  85                 fprintf(stderr, "tex[%d].levels", data);
  86                 break;
  87
  88         case QUNIFORM_IMAGE_WIDTH:
  89                 fprintf(stderr, "img[%d].width", data);
  90                 break;
  91         case QUNIFORM_IMAGE_HEIGHT:
  92                 fprintf(stderr, "img[%d].height", data);
  93                 break;
  94         case QUNIFORM_IMAGE_DEPTH:
  95                 fprintf(stderr, "img[%d].depth", data);
  96                 break;
  97         case QUNIFORM_IMAGE_ARRAY_SIZE:
  98                 fprintf(stderr, "img[%d].array_size", data);
  99                 break;
 100
 101         case QUNIFORM_SPILL_OFFSET:
 102                 fprintf(stderr, "spill_offset");
 103                 break;
 104
 105         case QUNIFORM_SPILL_SIZE_PER_THREAD:
 106                 fprintf(stderr, "spill_size_per_thread");
 107                 break;
 108
 109         case QUNIFORM_UBO_ADDR:
 110                 fprintf(stderr, "ubo[%d]+0x%x",
 111                         v3d_unit_data_get_unit(data),
 112                         v3d_unit_data_get_offset(data));
 113                 break;
 114
 115         case QUNIFORM_SSBO_OFFSET:
 116                 fprintf(stderr, "ssbo[%d]", data);
 117                 break;
 118
 119         case QUNIFORM_GET_BUFFER_SIZE:
 120                 fprintf(stderr, "ssbo_size[%d]", data);
 121                 break;
 122
 123         case QUNIFORM_NUM_WORK_GROUPS:
 124                 fprintf(stderr, "num_wg.%c", data < 3 ? "xyz"[data] : '?');
 125                 break;
 126
 127         default:
 128                 if (quniform_contents_is_texture_p0(contents)) {
 129                         fprintf(stderr, "tex[%d].p0: 0x%08x",
 130                                 contents - QUNIFORM_TEXTURE_CONFIG_P0_0,
 131                                 data);
 132                 } else if (contents < ARRAY_SIZE(quniform_names) &&
 133                            quniform_names[contents]) {
 134                         fprintf(stderr, "%s",
 135                                 quniform_names[contents]);
 136                 } else {
 137                         fprintf(stderr, "%d / 0x%08x", contents, data);
 138                 }
 139         }
 140 }
 141
 142 static void
 143 vir_print_reg(struct v3d_compile *c, const struct qinst *inst,
 144               struct qreg reg)
 145 {
 146         switch (reg.file) {
 147
 148         case QFILE_NULL:
 149                 fprintf(stderr, "null");
 150                 break;
 151
 152         case QFILE_LOAD_IMM:
 153                 fprintf(stderr, "0x%08x (%f)", reg.index, uif(reg.index));
 154                 break;
 155
 156         case QFILE_REG:
 157                 fprintf(stderr, "rf%d", reg.index);
 158                 break;
 159
 160         case QFILE_MAGIC:
 161                 fprintf(stderr, "%s", v3d_qpu_magic_waddr_name(reg.index));
 162                 break;
 163
 164         case QFILE_SMALL_IMM: {
 165                 uint32_t unpacked;
 166                 bool ok = v3d_qpu_small_imm_unpack(c->devinfo,
 167                                                    inst->qpu.raddr_b,
 168                                                    &unpacked);
 169                 assert(ok); (void) ok;
 170
 171                 if ((int)inst->qpu.raddr_b >= -16 &&
 172                     (int)inst->qpu.raddr_b <= 15)
 173                         fprintf(stderr, "%d", unpacked);
 174                 else
 175                         fprintf(stderr, "%f", uif(unpacked));
 176                 break;
 177         }
 178
 179         case QFILE_VPM:
 180                 fprintf(stderr, "vpm%d.%d",
 181                         reg.index / 4, reg.index % 4);
 182                 break;
 183
 184         case QFILE_TEMP:
 185                 fprintf(stderr, "t%d", reg.index);
 186                 break;
 187         }
 188 }
 189
 190 static void
 191 vir_dump_sig_addr(const struct v3d_device_info *devinfo,
 192                   const struct v3d_qpu_instr *instr)
 193 {
 194         if (devinfo->ver < 41)
 195                 return;
 196
 197         if (!instr->sig_magic)
 198                 fprintf(stderr, ".rf%d", instr->sig_addr);
 199         else {
 200                 const char *name = v3d_qpu_magic_waddr_name(instr->sig_addr);
 201                 if (name)
 202                         fprintf(stderr, ".%s", name);
 203                 else
 204                         fprintf(stderr, ".UNKNOWN%d", instr->sig_addr);
 205         }
 206 }
 207
 208 static void
 209 vir_dump_sig(struct v3d_compile *c, struct qinst *inst)
 210 {
 211         struct v3d_qpu_sig *sig = &inst->qpu.sig;
 212
 213         if (sig->thrsw)
 214                 fprintf(stderr, "; thrsw");
 215         if (sig->ldvary) {
 216                 fprintf(stderr, "; ldvary");
 217                 vir_dump_sig_addr(c->devinfo, &inst->qpu);
 218         }
 219         if (sig->ldvpm)
 220                 fprintf(stderr, "; ldvpm");
 221         if (sig->ldtmu) {
 222                 fprintf(stderr, "; ldtmu");
 223                 vir_dump_sig_addr(c->devinfo, &inst->qpu);
 224         }
 225         if (sig->ldtlb) {
 226                 fprintf(stderr, "; ldtlb");
 227                 vir_dump_sig_addr(c->devinfo, &inst->qpu);
 228         }
 229         if (sig->ldtlbu) {
 230                 fprintf(stderr, "; ldtlbu");
 231                 vir_dump_sig_addr(c->devinfo, &inst->qpu);
 232         }
 233         if (sig->ldunif)
 234                 fprintf(stderr, "; ldunif");
 235         if (sig->ldunifrf) {
 236                 fprintf(stderr, "; ldunifrf");
 237                 vir_dump_sig_addr(c->devinfo, &inst->qpu);
 238         }
 239         if (sig->ldunifa)
 240                 fprintf(stderr, "; ldunifa");
 241         if (sig->ldunifarf) {
 242                 fprintf(stderr, "; ldunifarf");
 243                 vir_dump_sig_addr(c->devinfo, &inst->qpu);
 244         }
 245         if (sig->wrtmuc)
 246                 fprintf(stderr, "; wrtmuc");
 247 }
 248
 249 static void
 250 vir_dump_alu(struct v3d_compile *c, struct qinst *inst)
 251 {
 252         struct v3d_qpu_instr *instr = &inst->qpu;
 253         int nsrc = vir_get_nsrc(inst);
 254         enum v3d_qpu_input_unpack unpack[2];
 255
 256         if (inst->qpu.alu.add.op != V3D_QPU_A_NOP) {
 257                 fprintf(stderr, "%s", v3d_qpu_add_op_name(instr->alu.add.op));
 258                 fprintf(stderr, "%s", v3d_qpu_cond_name(instr->flags.ac));
 259                 fprintf(stderr, "%s", v3d_qpu_pf_name(instr->flags.apf));
 260                 fprintf(stderr, "%s", v3d_qpu_uf_name(instr->flags.auf));
 261                 fprintf(stderr, " ");
 262
 263                 vir_print_reg(c, inst, inst->dst);
 264                 fprintf(stderr, "%s", v3d_qpu_pack_name(instr->alu.add.output_pack));
 265
 266                 unpack[0] = instr->alu.add.a_unpack;
 267                 unpack[1] = instr->alu.add.b_unpack;
 268         } else {
 269                 fprintf(stderr, "%s", v3d_qpu_mul_op_name(instr->alu.mul.op));
 270                 fprintf(stderr, "%s", v3d_qpu_cond_name(instr->flags.mc));
 271                 fprintf(stderr, "%s", v3d_qpu_pf_name(instr->flags.mpf));
 272                 fprintf(stderr, "%s", v3d_qpu_uf_name(instr->flags.muf));
 273                 fprintf(stderr, " ");
 274
 275                 vir_print_reg(c, inst, inst->dst);
 276                 fprintf(stderr, "%s", v3d_qpu_pack_name(instr->alu.mul.output_pack));
 277
 278                 unpack[0] = instr->alu.mul.a_unpack;
 279                 unpack[1] = instr->alu.mul.b_unpack;
 280         }
 281
 282         for (int i = 0; i < nsrc; i++) {
 283                 fprintf(stderr, ", ");
 284                 vir_print_reg(c, inst, inst->src[i]);
 285                 fprintf(stderr, "%s", v3d_qpu_unpack_name(unpack[i]));
 286         }
 287
 288         vir_dump_sig(c, inst);
 289 }
 290
 291 void
 292 vir_dump_inst(struct v3d_compile *c, struct qinst *inst)
 293 {
 294         struct v3d_qpu_instr *instr = &inst->qpu;
 295
 296         switch (inst->qpu.type) {
 297         case V3D_QPU_INSTR_TYPE_ALU:
 298                 vir_dump_alu(c, inst);
 299                 break;
 300         case V3D_QPU_INSTR_TYPE_BRANCH:
 301                 fprintf(stderr, "b");
 302                 if (instr->branch.ub)
 303                         fprintf(stderr, "u");
 304
 305                 fprintf(stderr, "%s",
 306                         v3d_qpu_branch_cond_name(instr->branch.cond));
 307                 fprintf(stderr, "%s", v3d_qpu_msfign_name(instr->branch.msfign));
 308
 309                 switch (instr->branch.bdi) {
 310                 case V3D_QPU_BRANCH_DEST_ABS:
 311                         fprintf(stderr, "  zero_addr+0x%08x", instr->branch.offset);
 312                         break;
 313
 314                 case V3D_QPU_BRANCH_DEST_REL:
 315                         fprintf(stderr, "  %d", instr->branch.offset);
 316                         break;
 317
 318                 case V3D_QPU_BRANCH_DEST_LINK_REG:
 319                         fprintf(stderr, "  lri");
 320                         break;
 321
 322                 case V3D_QPU_BRANCH_DEST_REGFILE:
 323                         fprintf(stderr, "  rf%d", instr->branch.raddr_a);
 324                         break;
 325                 }
 326
 327                 if (instr->branch.ub) {
 328                         switch (instr->branch.bdu) {
 329                         case V3D_QPU_BRANCH_DEST_ABS:
 330                                 fprintf(stderr, ", a:unif");
 331                                 break;
 332
 333                         case V3D_QPU_BRANCH_DEST_REL:
 334                                 fprintf(stderr, ", r:unif");
 335                                 break;
 336
 337                         case V3D_QPU_BRANCH_DEST_LINK_REG:
 338                                 fprintf(stderr, ", lri");
 339                                 break;
 340
 341                         case V3D_QPU_BRANCH_DEST_REGFILE:
 342                                 fprintf(stderr, ", rf%d", instr->branch.raddr_a);
 343                                 break;
 344                         }
 345                 }
 346                 break;
 347         }
 348
 349         if (vir_has_uniform(inst)) {
 350                 fprintf(stderr, " (");
 351                 vir_dump_uniform(c->uniform_contents[inst->uniform],
 352                                  c->uniform_data[inst->uniform]);
 353                 fprintf(stderr, ")");
 354         }
 355 }
 356
 357 void
 358 vir_dump(struct v3d_compile *c)
 359 {
 360         int ip = 0;
 361         int pressure = 0;
 362
 363         vir_for_each_block(block, c) {
 364                 fprintf(stderr, "BLOCK %d:\n", block->index);
 365                 vir_for_each_inst(inst, block) {
 366                         if (c->live_intervals_valid) {
 367                                 for (int i = 0; i < c->num_temps; i++) {
 368                                         if (c->temp_start[i] == ip)
 369                                                 pressure++;
 370                                 }
 371
 372                                 fprintf(stderr, "P%4d ", pressure);
 373
 374                                 bool first = true;
 375
 376                                 for (int i = 0; i < c->num_temps; i++) {
 377                                         if (c->temp_start[i] != ip)
 378                                                 continue;
 379
 380                                         if (first) {
 381                                                 first = false;
 382                                         } else {
 383                                                 fprintf(stderr, ", ");
 384                                         }
 385                                         if (BITSET_TEST(c->spillable, i))
 386                                                 fprintf(stderr, "S%4d", i);
 387                                         else
 388                                                 fprintf(stderr, "U%4d", i);
 389                                 }
 390
 391                                 if (first)
 392                                         fprintf(stderr, "      ");
 393                                 else
 394                                         fprintf(stderr, " ");
 395                         }
 396
 397                         if (c->live_intervals_valid) {
 398                                 bool first = true;
 399
 400                                 for (int i = 0; i < c->num_temps; i++) {
 401                                         if (c->temp_end[i] != ip)
 402                                                 continue;
 403
 404                                         if (first) {
 405                                                 first = false;
 406                                         } else {
 407                                                 fprintf(stderr, ", ");
 408                                         }
 409                                         fprintf(stderr, "E%4d", i);
 410                                         pressure--;
 411                                 }
 412
 413                                 if (first)
 414                                         fprintf(stderr, "      ");
 415                                 else
 416                                         fprintf(stderr, " ");
 417                         }
 418
 419                         vir_dump_inst(c, inst);
 420                         fprintf(stderr, "\n");
 421                         ip++;
 422                 }
 423                 if (block->successors[1]) {
 424                         fprintf(stderr, "-> BLOCK %d, %d\n",
 425                                 block->successors[0]->index,
 426                                 block->successors[1]->index);
 427                 } else if (block->successors[0]) {
 428                         fprintf(stderr, "-> BLOCK %d\n",
 429                                 block->successors[0]->index);
 430                 }
 431         }
 432 }