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