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_UBO_ADDR:
 102                 fprintf(stderr, "ubo[%d]+0x%x",
 103                         v3d_unit_data_get_unit(data),
 104                         v3d_unit_data_get_offset(data));
 105                 break;
 106
 107         case QUNIFORM_SSBO_OFFSET:
 108                 fprintf(stderr, "ssbo[%d]", data);
 109                 break;
 110
 111         case QUNIFORM_GET_BUFFER_SIZE:
 112                 fprintf(stderr, "ssbo_size[%d]", data);
 113                 break;
 114
 115         case QUNIFORM_NUM_WORK_GROUPS:
 116                 fprintf(stderr, "num_wg.%c", data < 3 ? "xyz"[data] : '?');
 117                 break;
 118
 119         default:
 120                 if (quniform_contents_is_texture_p0(contents)) {
 121                         fprintf(stderr, "tex[%d].p0: 0x%08x",
 122                                 contents - QUNIFORM_TEXTURE_CONFIG_P0_0,
 123                                 data);
 124                 } else if (contents < ARRAY_SIZE(quniform_names) &&
 125                            quniform_names[contents]) {
 126                         fprintf(stderr, "%s",
 127                                 quniform_names[contents]);
 128                 } else {
 129                         fprintf(stderr, "%d / 0x%08x", contents, data);
 130                 }
 131         }
 132 }
 133
 134 static void
 135 vir_print_reg(struct v3d_compile *c, const struct qinst *inst,
 136               struct qreg reg)
 137 {
 138         switch (reg.file) {
 139
 140         case QFILE_NULL:
 141                 fprintf(stderr, "null");
 142                 break;
 143
 144         case QFILE_LOAD_IMM:
 145                 fprintf(stderr, "0x%08x (%f)", reg.index, uif(reg.index));
 146                 break;
 147
 148         case QFILE_REG:
 149                 fprintf(stderr, "rf%d", reg.index);
 150                 break;
 151
 152         case QFILE_MAGIC:
 153                 fprintf(stderr, "%s", v3d_qpu_magic_waddr_name(reg.index));
 154                 break;
 155
 156         case QFILE_SMALL_IMM: {
 157                 uint32_t unpacked;
 158                 bool ok = v3d_qpu_small_imm_unpack(c->devinfo,
 159                                                    inst->qpu.raddr_b,
 160                                                    &unpacked);
 161                 assert(ok); (void) ok;
 162
 163                 if ((int)inst->qpu.raddr_b >= -16 &&
 164                     (int)inst->qpu.raddr_b <= 15)
 165                         fprintf(stderr, "%d", unpacked);
 166                 else
 167                         fprintf(stderr, "%f", uif(unpacked));
 168                 break;
 169         }
 170
 171         case QFILE_VPM:
 172                 fprintf(stderr, "vpm%d.%d",
 173                         reg.index / 4, reg.index % 4);
 174                 break;
 175
 176         case QFILE_TEMP:
 177                 fprintf(stderr, "t%d", reg.index);
 178                 break;
 179         }
 180 }
 181
 182 static void
 183 vir_dump_sig_addr(const struct v3d_device_info *devinfo,
 184                   const struct v3d_qpu_instr *instr)
 185 {
 186         if (devinfo->ver < 41)
 187                 return;
 188
 189         if (!instr->sig_magic)
 190                 fprintf(stderr, ".rf%d", instr->sig_addr);
 191         else {
 192                 const char *name = v3d_qpu_magic_waddr_name(instr->sig_addr);
 193                 if (name)
 194                         fprintf(stderr, ".%s", name);
 195                 else
 196                         fprintf(stderr, ".UNKNOWN%d", instr->sig_addr);
 197         }
 198 }
 199
 200 static void
 201 vir_dump_sig(struct v3d_compile *c, struct qinst *inst)
 202 {
 203         struct v3d_qpu_sig *sig = &inst->qpu.sig;
 204
 205         if (sig->thrsw)
 206                 fprintf(stderr, "; thrsw");
 207         if (sig->ldvary) {
 208                 fprintf(stderr, "; ldvary");
 209                 vir_dump_sig_addr(c->devinfo, &inst->qpu);
 210         }
 211         if (sig->ldvpm)
 212                 fprintf(stderr, "; ldvpm");
 213         if (sig->ldtmu) {
 214                 fprintf(stderr, "; ldtmu");
 215                 vir_dump_sig_addr(c->devinfo, &inst->qpu);
 216         }
 217         if (sig->ldtlb) {
 218                 fprintf(stderr, "; ldtlb");
 219                 vir_dump_sig_addr(c->devinfo, &inst->qpu);
 220         }
 221         if (sig->ldtlbu) {
 222                 fprintf(stderr, "; ldtlbu");
 223                 vir_dump_sig_addr(c->devinfo, &inst->qpu);
 224         }
 225         if (sig->ldunif)
 226                 fprintf(stderr, "; ldunif");
 227         if (sig->ldunifrf) {
 228                 fprintf(stderr, "; ldunifrf");
 229                 vir_dump_sig_addr(c->devinfo, &inst->qpu);
 230         }
 231         if (sig->ldunifa)
 232                 fprintf(stderr, "; ldunifa");
 233         if (sig->ldunifarf) {
 234                 fprintf(stderr, "; ldunifarf");
 235                 vir_dump_sig_addr(c->devinfo, &inst->qpu);
 236         }
 237         if (sig->wrtmuc)
 238                 fprintf(stderr, "; wrtmuc");
 239 }
 240
 241 static void
 242 vir_dump_alu(struct v3d_compile *c, struct qinst *inst)
 243 {
 244         struct v3d_qpu_instr *instr = &inst->qpu;
 245         int nsrc = vir_get_nsrc(inst);
 246         enum v3d_qpu_input_unpack unpack[2];
 247
 248         if (inst->qpu.alu.add.op != V3D_QPU_A_NOP) {
 249                 fprintf(stderr, "%s", v3d_qpu_add_op_name(instr->alu.add.op));
 250                 fprintf(stderr, "%s", v3d_qpu_cond_name(instr->flags.ac));
 251                 fprintf(stderr, "%s", v3d_qpu_pf_name(instr->flags.apf));
 252                 fprintf(stderr, "%s", v3d_qpu_uf_name(instr->flags.auf));
 253                 fprintf(stderr, " ");
 254
 255                 vir_print_reg(c, inst, inst->dst);
 256                 fprintf(stderr, "%s", v3d_qpu_pack_name(instr->alu.add.output_pack));
 257
 258                 unpack[0] = instr->alu.add.a_unpack;
 259                 unpack[1] = instr->alu.add.b_unpack;
 260         } else {
 261                 fprintf(stderr, "%s", v3d_qpu_mul_op_name(instr->alu.mul.op));
 262                 fprintf(stderr, "%s", v3d_qpu_cond_name(instr->flags.mc));
 263                 fprintf(stderr, "%s", v3d_qpu_pf_name(instr->flags.mpf));
 264                 fprintf(stderr, "%s", v3d_qpu_uf_name(instr->flags.muf));
 265                 fprintf(stderr, " ");
 266
 267                 vir_print_reg(c, inst, inst->dst);
 268                 fprintf(stderr, "%s", v3d_qpu_pack_name(instr->alu.mul.output_pack));
 269
 270                 unpack[0] = instr->alu.mul.a_unpack;
 271                 unpack[1] = instr->alu.mul.b_unpack;
 272         }
 273
 274         for (int i = 0; i < nsrc; i++) {
 275                 fprintf(stderr, ", ");
 276                 vir_print_reg(c, inst, inst->src[i]);
 277                 fprintf(stderr, "%s", v3d_qpu_unpack_name(unpack[i]));
 278         }
 279
 280         vir_dump_sig(c, inst);
 281 }
 282
 283 void
 284 vir_dump_inst(struct v3d_compile *c, struct qinst *inst)
 285 {
 286         struct v3d_qpu_instr *instr = &inst->qpu;
 287
 288         switch (inst->qpu.type) {
 289         case V3D_QPU_INSTR_TYPE_ALU:
 290                 vir_dump_alu(c, inst);
 291                 break;
 292         case V3D_QPU_INSTR_TYPE_BRANCH:
 293                 fprintf(stderr, "b");
 294                 if (instr->branch.ub)
 295                         fprintf(stderr, "u");
 296
 297                 fprintf(stderr, "%s",
 298                         v3d_qpu_branch_cond_name(instr->branch.cond));
 299                 fprintf(stderr, "%s", v3d_qpu_msfign_name(instr->branch.msfign));
 300
 301                 switch (instr->branch.bdi) {
 302                 case V3D_QPU_BRANCH_DEST_ABS:
 303                         fprintf(stderr, "  zero_addr+0x%08x", instr->branch.offset);
 304                         break;
 305
 306                 case V3D_QPU_BRANCH_DEST_REL:
 307                         fprintf(stderr, "  %d", instr->branch.offset);
 308                         break;
 309
 310                 case V3D_QPU_BRANCH_DEST_LINK_REG:
 311                         fprintf(stderr, "  lri");
 312                         break;
 313
 314                 case V3D_QPU_BRANCH_DEST_REGFILE:
 315                         fprintf(stderr, "  rf%d", instr->branch.raddr_a);
 316                         break;
 317                 }
 318
 319                 if (instr->branch.ub) {
 320                         switch (instr->branch.bdu) {
 321                         case V3D_QPU_BRANCH_DEST_ABS:
 322                                 fprintf(stderr, ", a:unif");
 323                                 break;
 324
 325                         case V3D_QPU_BRANCH_DEST_REL:
 326                                 fprintf(stderr, ", r:unif");
 327                                 break;
 328
 329                         case V3D_QPU_BRANCH_DEST_LINK_REG:
 330                                 fprintf(stderr, ", lri");
 331                                 break;
 332
 333                         case V3D_QPU_BRANCH_DEST_REGFILE:
 334                                 fprintf(stderr, ", rf%d", instr->branch.raddr_a);
 335                                 break;
 336                         }
 337                 }
 338                 break;
 339         }
 340
 341         if (vir_has_uniform(inst)) {
 342                 fprintf(stderr, " (");
 343                 vir_dump_uniform(c->uniform_contents[inst->uniform],
 344                                  c->uniform_data[inst->uniform]);
 345                 fprintf(stderr, ")");
 346         }
 347 }
 348
 349 void
 350 vir_dump(struct v3d_compile *c)
 351 {
 352         int ip = 0;
 353         int pressure = 0;
 354
 355         vir_for_each_block(block, c) {
 356                 fprintf(stderr, "BLOCK %d:\n", block->index);
 357                 vir_for_each_inst(inst, block) {
 358                         if (c->live_intervals_valid) {
 359                                 for (int i = 0; i < c->num_temps; i++) {
 360                                         if (c->temp_start[i] == ip)
 361                                                 pressure++;
 362                                 }
 363
 364                                 fprintf(stderr, "P%4d ", pressure);
 365
 366                                 bool first = true;
 367
 368                                 for (int i = 0; i < c->num_temps; i++) {
 369                                         if (c->temp_start[i] != ip)
 370                                                 continue;
 371
 372                                         if (first) {
 373                                                 first = false;
 374                                         } else {
 375                                                 fprintf(stderr, ", ");
 376                                         }
 377                                         if (BITSET_TEST(c->spillable, i))
 378                                                 fprintf(stderr, "S%4d", i);
 379                                         else
 380                                                 fprintf(stderr, "U%4d", i);
 381                                 }
 382
 383                                 if (first)
 384                                         fprintf(stderr, "      ");
 385                                 else
 386                                         fprintf(stderr, " ");
 387                         }
 388
 389                         if (c->live_intervals_valid) {
 390                                 bool first = true;
 391
 392                                 for (int i = 0; i < c->num_temps; i++) {
 393                                         if (c->temp_end[i] != ip)
 394                                                 continue;
 395
 396                                         if (first) {
 397                                                 first = false;
 398                                         } else {
 399                                                 fprintf(stderr, ", ");
 400                                         }
 401                                         fprintf(stderr, "E%4d", i);
 402                                         pressure--;
 403                                 }
 404
 405                                 if (first)
 406                                         fprintf(stderr, "      ");
 407                                 else
 408                                         fprintf(stderr, " ");
 409                         }
 410
 411                         vir_dump_inst(c, inst);
 412                         fprintf(stderr, "\n");
 413                         ip++;
 414                 }
 415                 if (block->successors[1]) {
 416                         fprintf(stderr, "-> BLOCK %d, %d\n",
 417                                 block->successors[0]->index,
 418                                 block->successors[1]->index);
 419                 } else if (block->successors[0]) {
 420                         fprintf(stderr, "-> BLOCK %d\n",
 421                                 block->successors[0]->index);
 422                 }
 423         }
 424 }