src/intel/tools/aubinator_error_decode.c

   1 /*
   2  * Copyright © 2007-2017 Intel Corporation
   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
  25 #include <stdbool.h>
  26 #include <stdio.h>
  27 #include <stdlib.h>
  28 #include <stdarg.h>
  29 #include <string.h>
  30 #include <unistd.h>
  31 #include <inttypes.h>
  32 #include <errno.h>
  33 #include <sys/stat.h>
  34 #include <sys/types.h>
  35 #include <sys/wait.h>
  36 #include <err.h>
  37 #include <assert.h>
  38 #include <getopt.h>
  39 #include <zlib.h>
  40
  41 #include "common/gen_decoder.h"
  42 #include "util/macros.h"
  43 #include "gen_disasm.h"
  44
  45 #define CSI "\e["
  46 #define BLUE_HEADER  CSI "0;44m"
  47 #define GREEN_HEADER CSI "1;42m"
  48 #define NORMAL       CSI "0m"
  49
  50 #define MIN(a, b) ((a) < (b) ? (a) : (b))
  51
  52 /* options */
  53
  54 static bool option_full_decode = true;
  55 static bool option_print_offsets = true;
  56 static enum { COLOR_AUTO, COLOR_ALWAYS, COLOR_NEVER } option_color;
  57 static char *xml_path = NULL;
  58
  59 static uint32_t
  60 print_head(unsigned int reg)
  61 {
  62    printf("    head = 0x%08x, wraps = %d\n", reg & (0x7ffff<<2), reg >> 21);
  63    return reg & (0x7ffff<<2);
  64 }
  65
  66 static void
  67 print_register(struct gen_spec *spec, const char *name, uint32_t reg)
  68 {
  69    struct gen_group *reg_spec = gen_spec_find_register_by_name(spec, name);
  70
  71    if (reg_spec)
  72       gen_print_group(stdout, reg_spec, 0, &reg, option_color == COLOR_ALWAYS);
  73 }
  74
  75 struct ring_register_mapping {
  76    const char *ring_name;
  77    const char *register_name;
  78 };
  79
  80 static const struct ring_register_mapping acthd_registers[] = {
  81    { "blt", "BCS_ACTHD_UDW" },
  82    { "bsd", "VCS_ACTHD_UDW" },
  83    { "bsd2", "VCS2_ACTHD_UDW" },
  84    { "render", "ACTHD_UDW" },
  85    { "vebox", "VECS_ACTHD_UDW" },
  86 };
  87
  88 static const struct ring_register_mapping ctl_registers[] = {
  89    { "blt", "BCS_RING_BUFFER_CTL" },
  90    { "bsd", "VCS_RING_BUFFER_CTL" },
  91    { "bsd2", "VCS2_RING_BUFFER_CTL" },
  92    { "render", "RCS_RING_BUFFER_CTL" },
  93    { "vebox", "VECS_RING_BUFFER_CTL" },
  94 };
  95
  96 static const struct ring_register_mapping fault_registers[] = {
  97    { "blt", "BCS_FAULT_REG" },
  98    { "bsd", "VCS_FAULT_REG" },
  99    { "render", "RCS_FAULT_REG" },
 100    { "vebox", "VECS_FAULT_REG" },
 101 };
 102
 103 static const char *
 104 register_name_from_ring(const struct ring_register_mapping *mapping,
 105                         unsigned nb_mapping,
 106                         const char *ring_name)
 107 {
 108    for (unsigned i = 0; i < nb_mapping; i++) {
 109       if (strcmp(mapping[i].ring_name, ring_name) == 0)
 110          return mapping[i].register_name;
 111    }
 112    return NULL;
 113 }
 114
 115 static const char *
 116 instdone_register_for_ring(const struct gen_device_info *devinfo,
 117                            const char *ring_name)
 118 {
 119    if (strcmp(ring_name, "blt") == 0)
 120       return "BCS_INSTDONE";
 121    else if (strcmp(ring_name, "vebox") == 0)
 122       return "VECS_INSTDONE";
 123    else if (strcmp(ring_name, "bsd") == 0)
 124       return "VCS_INSTDONE";
 125    else if (strcmp(ring_name, "render") == 0) {
 126       if (devinfo->gen == 6)
 127          return "INSTDONE_2";
 128       return "INSTDONE_1";
 129    }
 130
 131    return NULL;
 132 }
 133
 134 static void
 135 print_pgtbl_err(unsigned int reg, struct gen_device_info *devinfo)
 136 {
 137    if (reg & (1 << 26))
 138       printf("    Invalid Sampler Cache GTT entry\n");
 139    if (reg & (1 << 24))
 140       printf("    Invalid Render Cache GTT entry\n");
 141    if (reg & (1 << 23))
 142       printf("    Invalid Instruction/State Cache GTT entry\n");
 143    if (reg & (1 << 22))
 144       printf("    There is no ROC, this cannot occur!\n");
 145    if (reg & (1 << 21))
 146       printf("    Invalid GTT entry during Vertex Fetch\n");
 147    if (reg & (1 << 20))
 148       printf("    Invalid GTT entry during Command Fetch\n");
 149    if (reg & (1 << 19))
 150       printf("    Invalid GTT entry during CS\n");
 151    if (reg & (1 << 18))
 152       printf("    Invalid GTT entry during Cursor Fetch\n");
 153    if (reg & (1 << 17))
 154       printf("    Invalid GTT entry during Overlay Fetch\n");
 155    if (reg & (1 << 8))
 156       printf("    Invalid GTT entry during Display B Fetch\n");
 157    if (reg & (1 << 4))
 158       printf("    Invalid GTT entry during Display A Fetch\n");
 159    if (reg & (1 << 1))
 160       printf("    Valid PTE references illegal memory\n");
 161    if (reg & (1 << 0))
 162       printf("    Invalid GTT entry during fetch for host\n");
 163 }
 164
 165 static void
 166 print_snb_fence(struct gen_device_info *devinfo, uint64_t fence)
 167 {
 168    printf("    %svalid, %c-tiled, pitch: %i, start: 0x%08x, size: %u\n",
 169           fence & 1 ? "" : "in",
 170           fence & (1<<1) ? 'y' : 'x',
 171           (int)(((fence>>32)&0xfff)+1)*128,
 172           (uint32_t)fence & 0xfffff000,
 173           (uint32_t)(((fence>>32)&0xfffff000) - (fence&0xfffff000) + 4096));
 174 }
 175
 176 static void
 177 print_i965_fence(struct gen_device_info *devinfo, uint64_t fence)
 178 {
 179    printf("    %svalid, %c-tiled, pitch: %i, start: 0x%08x, size: %u\n",
 180           fence & 1 ? "" : "in",
 181           fence & (1<<1) ? 'y' : 'x',
 182           (int)(((fence>>2)&0x1ff)+1)*128,
 183           (uint32_t)fence & 0xfffff000,
 184           (uint32_t)(((fence>>32)&0xfffff000) - (fence&0xfffff000) + 4096));
 185 }
 186
 187 static void
 188 print_fence(struct gen_device_info *devinfo, uint64_t fence)
 189 {
 190    if (devinfo->gen == 6 || devinfo->gen == 7) {
 191       return print_snb_fence(devinfo, fence);
 192    } else if (devinfo->gen == 4 || devinfo->gen == 5) {
 193       return print_i965_fence(devinfo, fence);
 194    }
 195 }
 196
 197 static void
 198 print_fault_data(struct gen_device_info *devinfo, uint32_t data1, uint32_t data0)
 199 {
 200    uint64_t address;
 201
 202    if (devinfo->gen < 8)
 203       return;
 204
 205    address = ((uint64_t)(data0) << 12) | ((uint64_t)data1 & 0xf) << 44;
 206    printf("    Address 0x%016" PRIx64 " %s\n", address,
 207           data1 & (1 << 4) ? "GGTT" : "PPGTT");
 208 }
 209
 210 #define CSI "\e["
 211 #define NORMAL       CSI "0m"
 212
 213 struct section {
 214    uint64_t gtt_offset;
 215    char *ring_name;
 216    const char *buffer_name;
 217    uint32_t *data;
 218    int count;
 219 };
 220
 221 #define MAX_SECTIONS 30
 222 static struct section sections[MAX_SECTIONS];
 223
 224 static void
 225 disassemble_program(struct gen_disasm *disasm, const char *type,
 226                     const struct section *instruction_section,
 227                     uint64_t ksp)
 228 {
 229    if (!instruction_section)
 230       return;
 231
 232    printf("\nReferenced %s:\n", type);
 233    gen_disasm_disassemble(disasm, instruction_section->data, ksp, stdout);
 234 }
 235
 236 static const struct section *
 237 find_section(const char *str_base_address)
 238 {
 239    uint64_t base_address = strtol(str_base_address, NULL, 16);
 240    for (int s = 0; s < MAX_SECTIONS; s++) {
 241       if (sections[s].gtt_offset == base_address)
 242          return &sections[s];
 243    }
 244    return NULL;
 245 }
 246
 247 static void
 248 decode(struct gen_spec *spec, struct gen_disasm *disasm,
 249        const struct section *section)
 250 {
 251    uint64_t gtt_offset = section->gtt_offset;
 252    uint32_t *data = section->data;
 253    uint32_t *p, *end = (data + section->count);
 254    int length;
 255    struct gen_group *inst;
 256    const struct section *current_instruction_buffer = NULL;
 257    const struct section *current_dynamic_state_buffer = NULL;
 258
 259    for (p = data; p < end; p += length) {
 260       const char *color = option_full_decode ? BLUE_HEADER : NORMAL,
 261          *reset_color = NORMAL;
 262       uint64_t offset = gtt_offset + 4 * (p - data);
 263
 264       inst = gen_spec_find_instruction(spec, p);
 265       length = gen_group_get_length(inst, p);
 266       assert(inst == NULL || length > 0);
 267       length = MAX2(1, length);
 268       if (inst == NULL) {
 269          printf("unknown instruction %08x\n", p[0]);
 270          continue;
 271       }
 272       if (option_color == COLOR_NEVER) {
 273          color = "";
 274          reset_color = "";
 275       }
 276
 277       printf("%s0x%08"PRIx64":  0x%08x:  %-80s%s\n",
 278              color, offset, p[0], gen_group_get_name(inst), reset_color);
 279
 280       gen_print_group(stdout, inst, offset, p,
 281                       option_color == COLOR_ALWAYS);
 282
 283       if (strcmp(inst->name, "MI_BATCH_BUFFER_END") == 0)
 284          break;
 285
 286       if (strcmp(inst->name, "STATE_BASE_ADDRESS") == 0) {
 287          struct gen_field_iterator iter;
 288          gen_field_iterator_init(&iter, inst, p, false);
 289
 290          do {
 291             if (strcmp(iter.name, "Instruction Base Address") == 0) {
 292                current_instruction_buffer = find_section(iter.value);
 293             } else if (strcmp(iter.name, "Dynamic State Base Address") == 0) {
 294                current_dynamic_state_buffer = find_section(iter.value);
 295             }
 296          } while (gen_field_iterator_next(&iter));
 297       } else if (strcmp(inst->name,   "WM_STATE") == 0 ||
 298                  strcmp(inst->name, "3DSTATE_PS") == 0 ||
 299                  strcmp(inst->name, "3DSTATE_WM") == 0) {
 300          struct gen_field_iterator iter;
 301          gen_field_iterator_init(&iter, inst, p, false);
 302          uint64_t ksp[3] = {0, 0, 0};
 303          bool enabled[3] = {false, false, false};
 304
 305          do {
 306             if (strncmp(iter.name, "Kernel Start Pointer ",
 307                         strlen("Kernel Start Pointer ")) == 0) {
 308                int idx = iter.name[strlen("Kernel Start Pointer ")] - '0';
 309                ksp[idx] = strtol(iter.value, NULL, 16);
 310             } else if (strcmp(iter.name, "8 Pixel Dispatch Enable") == 0) {
 311                enabled[0] = strcmp(iter.value, "true") == 0;
 312             } else if (strcmp(iter.name, "16 Pixel Dispatch Enable") == 0) {
 313                enabled[1] = strcmp(iter.value, "true") == 0;
 314             } else if (strcmp(iter.name, "32 Pixel Dispatch Enable") == 0) {
 315                enabled[2] = strcmp(iter.value, "true") == 0;
 316             }
 317          } while (gen_field_iterator_next(&iter));
 318
 319          /* Reorder KSPs to be [8, 16, 32] instead of the hardware order. */
 320          if (enabled[0] + enabled[1] + enabled[2] == 1) {
 321             if (enabled[1]) {
 322                ksp[1] = ksp[0];
 323                ksp[0] = 0;
 324             } else if (enabled[2]) {
 325                ksp[2] = ksp[0];
 326                ksp[0] = 0;
 327             }
 328          } else {
 329             uint64_t tmp = ksp[1];
 330             ksp[1] = ksp[2];
 331             ksp[2] = tmp;
 332          }
 333
 334          /* FINISHME: Broken for multi-program WM_STATE,
 335           * which Mesa does not use
 336           */
 337          if (enabled[0]) {
 338             disassemble_program(disasm, "SIMD8 fragment shader",
 339                                 current_instruction_buffer, ksp[0]);
 340          }
 341          if (enabled[1]) {
 342             disassemble_program(disasm, "SIMD16 fragment shader",
 343                                 current_instruction_buffer, ksp[1]);
 344          }
 345          if (enabled[2]) {
 346             disassemble_program(disasm, "SIMD32 fragment shader",
 347                                 current_instruction_buffer, ksp[2]);
 348          }
 349          printf("\n");
 350       } else if (strcmp(inst->name,   "VS_STATE") == 0 ||
 351                  strcmp(inst->name,   "GS_STATE") == 0 ||
 352                  strcmp(inst->name,   "SF_STATE") == 0 ||
 353                  strcmp(inst->name, "CLIP_STATE") == 0 ||
 354                  strcmp(inst->name, "3DSTATE_DS") == 0 ||
 355                  strcmp(inst->name, "3DSTATE_HS") == 0 ||
 356                  strcmp(inst->name, "3DSTATE_GS") == 0 ||
 357                  strcmp(inst->name, "3DSTATE_VS") == 0) {
 358          struct gen_field_iterator iter;
 359          gen_field_iterator_init(&iter, inst, p, false);
 360          uint64_t ksp = 0;
 361          bool is_simd8 = false; /* vertex shaders on Gen8+ only */
 362          bool is_enabled = true;
 363
 364          do {
 365             if (strcmp(iter.name, "Kernel Start Pointer") == 0) {
 366                ksp = strtol(iter.value, NULL, 16);
 367             } else if (strcmp(iter.name, "SIMD8 Dispatch Enable") == 0) {
 368                is_simd8 = strcmp(iter.value, "true") == 0;
 369             } else if (strcmp(iter.name, "Dispatch Enable") == 0) {
 370                is_simd8 = strcmp(iter.value, "SIMD8") == 0;
 371             } else if (strcmp(iter.name, "Enable") == 0) {
 372                is_enabled = strcmp(iter.value, "true") == 0;
 373             }
 374          } while (gen_field_iterator_next(&iter));
 375
 376          const char *type =
 377             strcmp(inst->name,   "VS_STATE") == 0 ? "vertex shader" :
 378             strcmp(inst->name,   "GS_STATE") == 0 ? "geometry shader" :
 379             strcmp(inst->name,   "SF_STATE") == 0 ? "strips and fans shader" :
 380             strcmp(inst->name, "CLIP_STATE") == 0 ? "clip shader" :
 381             strcmp(inst->name, "3DSTATE_DS") == 0 ? "tessellation control shader" :
 382             strcmp(inst->name, "3DSTATE_HS") == 0 ? "tessellation evaluation shader" :
 383             strcmp(inst->name, "3DSTATE_VS") == 0 ? (is_simd8 ? "SIMD8 vertex shader" : "vec4 vertex shader") :
 384             strcmp(inst->name, "3DSTATE_GS") == 0 ? (is_simd8 ? "SIMD8 geometry shader" : "vec4 geometry shader") :
 385             NULL;
 386
 387          if (is_enabled) {
 388             disassemble_program(disasm, type, current_instruction_buffer, ksp);
 389             printf("\n");
 390          }
 391       } else if (strcmp(inst->name, "MEDIA_INTERFACE_DESCRIPTOR_LOAD") == 0) {
 392          struct gen_field_iterator iter;
 393          gen_field_iterator_init(&iter, inst, p, false);
 394          uint64_t interface_offset = 0;
 395          do {
 396             if (strcmp(iter.name, "Interface Descriptor Data Start Address") == 0) {
 397                interface_offset = strtol(iter.value, NULL, 16);
 398                break;
 399             }
 400          } while (gen_field_iterator_next(&iter));
 401
 402          if (current_dynamic_state_buffer && interface_offset != 0) {
 403             struct gen_group *desc =
 404                gen_spec_find_struct(spec, "INTERFACE_DESCRIPTOR_DATA");
 405             uint32_t *desc_p =
 406                ((void *)current_dynamic_state_buffer->data) + interface_offset;
 407             gen_field_iterator_init(&iter, desc, desc_p, false);
 408             do {
 409                if (strcmp(iter.name, "Kernel Start Pointer") == 0) {
 410                   uint64_t ksp = strtol(iter.value, NULL, 16);
 411                   disassemble_program(disasm, "compute shader",
 412                                       current_instruction_buffer, ksp);
 413                   printf("\n");
 414                   break;
 415                }
 416             } while (gen_field_iterator_next(&iter));
 417          }
 418       }
 419    }
 420 }
 421
 422 static int zlib_inflate(uint32_t **ptr, int len)
 423 {
 424    struct z_stream_s zstream;
 425    void *out;
 426    const uint32_t out_size = 128*4096;  /* approximate obj size */
 427
 428    memset(&zstream, 0, sizeof(zstream));
 429
 430    zstream.next_in = (unsigned char *)*ptr;
 431    zstream.avail_in = 4*len;
 432
 433    if (inflateInit(&zstream) != Z_OK)
 434       return 0;
 435
 436    out = malloc(out_size);
 437    zstream.next_out = out;
 438    zstream.avail_out = out_size;
 439
 440    do {
 441       switch (inflate(&zstream, Z_SYNC_FLUSH)) {
 442       case Z_STREAM_END:
 443          goto end;
 444       case Z_OK:
 445          break;
 446       default:
 447          inflateEnd(&zstream);
 448          return 0;
 449       }
 450
 451       if (zstream.avail_out)
 452          break;
 453
 454       out = realloc(out, 2*zstream.total_out);
 455       if (out == NULL) {
 456          inflateEnd(&zstream);
 457          return 0;
 458       }
 459
 460       zstream.next_out = (unsigned char *)out + zstream.total_out;
 461       zstream.avail_out = zstream.total_out;
 462    } while (1);
 463  end:
 464    inflateEnd(&zstream);
 465    free(*ptr);
 466    *ptr = out;
 467    return zstream.total_out / 4;
 468 }
 469
 470 static int ascii85_decode(const char *in, uint32_t **out, bool inflate)
 471 {
 472    int len = 0, size = 1024;
 473
 474    *out = realloc(*out, sizeof(uint32_t)*size);
 475    if (*out == NULL)
 476       return 0;
 477
 478    while (*in >= '!' && *in <= 'z') {
 479       uint32_t v = 0;
 480
 481       if (len == size) {
 482          size *= 2;
 483          *out = realloc(*out, sizeof(uint32_t)*size);
 484          if (*out == NULL)
 485             return 0;
 486       }
 487
 488       if (*in == 'z') {
 489          in++;
 490       } else {
 491          v += in[0] - 33; v *= 85;
 492          v += in[1] - 33; v *= 85;
 493          v += in[2] - 33; v *= 85;
 494          v += in[3] - 33; v *= 85;
 495          v += in[4] - 33;
 496          in += 5;
 497       }
 498       (*out)[len++] = v;
 499    }
 500
 501    if (!inflate)
 502       return len;
 503
 504    return zlib_inflate(out, len);
 505 }
 506
 507 static void
 508 read_data_file(FILE *file)
 509 {
 510    struct gen_spec *spec = NULL;
 511    long long unsigned fence;
 512    int matched;
 513    char *line = NULL;
 514    size_t line_size;
 515    uint32_t offset, value;
 516    char *ring_name = NULL;
 517    struct gen_device_info devinfo;
 518    struct gen_disasm *disasm = NULL;
 519    int sect_num = 0;
 520
 521    while (getline(&line, &line_size, file) > 0) {
 522       char *new_ring_name = NULL;
 523       char *dashes;
 524
 525       if (sscanf(line, "%m[^ ] command stream\n", &new_ring_name) > 0) {
 526          free(ring_name);
 527          ring_name = new_ring_name;
 528       }
 529
 530       if (line[0] == ':' || line[0] == '~') {
 531          uint32_t *data = NULL;
 532          int count = ascii85_decode(line+1, &data, line[0] == ':');
 533          if (count == 0) {
 534             fprintf(stderr, "ASCII85 decode failed.\n");
 535             exit(EXIT_FAILURE);
 536          }
 537          sections[sect_num].data = data;
 538          sections[sect_num].count = count;
 539          sect_num++;
 540          continue;
 541       }
 542
 543       dashes = strstr(line, "---");
 544       if (dashes) {
 545          const struct {
 546             const char *match;
 547             const char *name;
 548          } buffers[] = {
 549             { "ringbuffer", "ring buffer" },
 550             { "gtt_offset", "batch buffer" },
 551             { "hw context", "HW Context" },
 552             { "hw status", "HW status" },
 553             { "wa context", "WA context" },
 554             { "wa batchbuffer", "WA batch" },
 555             { "user", "user" },
 556             { "semaphores", "semaphores", },
 557             { "guc log buffer", "GuC log", },
 558             { NULL, "unknown" },
 559          }, *b;
 560
 561          free(ring_name);
 562          ring_name = malloc(dashes - line);
 563          strncpy(ring_name, line, dashes - line);
 564          ring_name[dashes - line - 1] = '\0';
 565
 566          dashes += 4;
 567          for (b = buffers; b->match; b++) {
 568             if (strncasecmp(dashes, b->match, strlen(b->match)) == 0)
 569                break;
 570          }
 571
 572          sections[sect_num].buffer_name = b->name;
 573          sections[sect_num].ring_name = strdup(ring_name);
 574
 575          uint32_t hi, lo;
 576          dashes = strchr(dashes, '=');
 577          if (dashes && sscanf(dashes, "= 0x%08x %08x\n", &hi, &lo))
 578             sections[sect_num].gtt_offset = ((uint64_t) hi) << 32 | lo;
 579
 580          continue;
 581       }
 582
 583       matched = sscanf(line, "%08x : %08x", &offset, &value);
 584       if (matched != 2) {
 585          uint32_t reg, reg2;
 586
 587          /* display reg section is after the ringbuffers, don't mix them */
 588          printf("%s", line);
 589
 590          matched = sscanf(line, "PCI ID: 0x%04x\n", &reg);
 591          if (matched == 0)
 592             matched = sscanf(line, " PCI ID: 0x%04x\n", &reg);
 593          if (matched == 0) {
 594             const char *pci_id_start = strstr(line, "PCI ID");
 595             if (pci_id_start)
 596                matched = sscanf(pci_id_start, "PCI ID: 0x%04x\n", &reg);
 597          }
 598          if (matched == 1) {
 599             if (!gen_get_device_info(reg, &devinfo)) {
 600                printf("Unable to identify devid=%x\n", reg);
 601                exit(EXIT_FAILURE);
 602             }
 603
 604             disasm = gen_disasm_create(reg);
 605
 606             printf("Detected GEN%i chipset\n", devinfo.gen);
 607
 608             if (xml_path == NULL)
 609                spec = gen_spec_load(&devinfo);
 610             else
 611                spec = gen_spec_load_from_path(&devinfo, xml_path);
 612          }
 613
 614          matched = sscanf(line, "  CTL: 0x%08x\n", &reg);
 615          if (matched == 1) {
 616             print_register(spec,
 617                            register_name_from_ring(ctl_registers,
 618                                                    ARRAY_SIZE(ctl_registers),
 619                                                    ring_name), reg);
 620          }
 621
 622          matched = sscanf(line, "  HEAD: 0x%08x\n", &reg);
 623          if (matched == 1)
 624             print_head(reg);
 625
 626          matched = sscanf(line, "  ACTHD: 0x%08x\n", &reg);
 627          if (matched == 1) {
 628             print_register(spec,
 629                            register_name_from_ring(acthd_registers,
 630                                                    ARRAY_SIZE(acthd_registers),
 631                                                    ring_name), reg);
 632          }
 633
 634          matched = sscanf(line, "  PGTBL_ER: 0x%08x\n", &reg);
 635          if (matched == 1 && reg)
 636             print_pgtbl_err(reg, &devinfo);
 637
 638          matched = sscanf(line, "  ERROR: 0x%08x\n", &reg);
 639          if (matched == 1 && reg) {
 640             print_register(spec, "GFX_ARB_ERROR_RPT", reg);
 641          }
 642
 643          matched = sscanf(line, "  INSTDONE: 0x%08x\n", &reg);
 644          if (matched == 1) {
 645             const char *reg_name =
 646                instdone_register_for_ring(&devinfo, ring_name);
 647             if (reg_name)
 648                print_register(spec, reg_name, reg);
 649          }
 650
 651          matched = sscanf(line, "  INSTDONE1: 0x%08x\n", &reg);
 652          if (matched == 1)
 653             print_register(spec, "INSTDONE_1", reg);
 654
 655          matched = sscanf(line, "  fence[%i] = %Lx\n", &reg, &fence);
 656          if (matched == 2)
 657             print_fence(&devinfo, fence);
 658
 659          matched = sscanf(line, "  FAULT_REG: 0x%08x\n", &reg);
 660          if (matched == 1 && reg) {
 661             const char *reg_name =
 662                register_name_from_ring(fault_registers,
 663                                        ARRAY_SIZE(fault_registers),
 664                                        ring_name);
 665             if (reg_name == NULL)
 666                reg_name = "FAULT_REG";
 667             print_register(spec, reg_name, reg);
 668          }
 669
 670          matched = sscanf(line, "  FAULT_TLB_DATA: 0x%08x 0x%08x\n", &reg, &reg2);
 671          if (matched == 2)
 672             print_fault_data(&devinfo, reg, reg2);
 673
 674          continue;
 675       }
 676    }
 677
 678    free(line);
 679    free(ring_name);
 680
 681    for (int s = 0; s < sect_num; s++) {
 682       printf("--- %s (%s) at 0x%08x %08x\n",
 683              sections[s].buffer_name, sections[s].ring_name,
 684              (unsigned) (sections[s].gtt_offset >> 32),
 685              (unsigned) sections[s].gtt_offset);
 686
 687       if (strcmp(sections[s].buffer_name, "batch buffer") == 0 ||
 688           strcmp(sections[s].buffer_name, "ring buffer") == 0 ||
 689           strcmp(sections[s].buffer_name, "HW Context") == 0) {
 690          decode(spec, disasm, &sections[s]);
 691       }
 692
 693       free(sections[s].ring_name);
 694       free(sections[s].data);
 695    }
 696
 697    gen_disasm_destroy(disasm);
 698 }
 699
 700 static void
 701 setup_pager(void)
 702 {
 703    int fds[2];
 704    pid_t pid;
 705
 706    if (!isatty(1))
 707       return;
 708
 709    if (pipe(fds) == -1)
 710       return;
 711
 712    pid = fork();
 713    if (pid == -1)
 714       return;
 715
 716    if (pid == 0) {
 717       close(fds[1]);
 718       dup2(fds[0], 0);
 719       execlp("less", "less", "-FRSi", NULL);
 720    }
 721
 722    close(fds[0]);
 723    dup2(fds[1], 1);
 724    close(fds[1]);
 725 }
 726
 727 static void
 728 print_help(const char *progname, FILE *file)
 729 {
 730    fprintf(file,
 731            "Usage: %s [OPTION]... [FILE]\n"
 732            "Parse an Intel GPU i915_error_state.\n"
 733            "With no FILE, debugfs-dri-directory is probed for in /debug and \n"
 734            "/sys/kernel/debug.  Otherwise, it may be specified. If a file is given,\n"
 735            "it is parsed as an GPU dump in the format of /debug/dri/0/i915_error_state.\n\n"
 736            "      --help          display this help and exit\n"
 737            "      --headers       decode only command headers\n"
 738            "      --color[=WHEN]  colorize the output; WHEN can be 'auto' (default\n"
 739            "                        if omitted), 'always', or 'never'\n"
 740            "      --no-pager      don't launch pager\n"
 741            "      --no-offsets    don't print instruction offsets\n"
 742            "      --xml=DIR       load hardware xml description from directory DIR\n",
 743            progname);
 744 }
 745
 746 int
 747 main(int argc, char *argv[])
 748 {
 749    FILE *file;
 750    const char *path;
 751    struct stat st;
 752    int c, i, error;
 753    bool help = false, pager = true;
 754    const struct option aubinator_opts[] = {
 755       { "help",       no_argument,       (int *) &help,                 true },
 756       { "no-pager",   no_argument,       (int *) &pager,                false },
 757       { "no-offsets", no_argument,       (int *) &option_print_offsets, false },
 758       { "headers",    no_argument,       (int *) &option_full_decode,   false },
 759       { "color",      required_argument, NULL,                          'c' },
 760       { "xml",        required_argument, NULL,                          'x' },
 761       { NULL,         0,                 NULL,                          0 }
 762    };
 763
 764    i = 0;
 765    while ((c = getopt_long(argc, argv, "", aubinator_opts, &i)) != -1) {
 766       switch (c) {
 767       case 'c':
 768          if (optarg == NULL || strcmp(optarg, "always") == 0)
 769             option_color = COLOR_ALWAYS;
 770          else if (strcmp(optarg, "never") == 0)
 771             option_color = COLOR_NEVER;
 772          else if (strcmp(optarg, "auto") == 0)
 773             option_color = COLOR_AUTO;
 774          else {
 775             fprintf(stderr, "invalid value for --color: %s", optarg);
 776             exit(EXIT_FAILURE);
 777          }
 778          break;
 779       case 'x':
 780          xml_path = strdup(optarg);
 781          break;
 782       default:
 783          break;
 784       }
 785    }
 786
 787    if (help || argc == 1) {
 788       print_help(argv[0], stderr);
 789       exit(EXIT_SUCCESS);
 790    }
 791
 792    if (optind >= argc) {
 793       if (isatty(0)) {
 794          path = "/sys/class/drm/card0/error";
 795          error = stat(path, &st);
 796          if (error != 0) {
 797             path = "/debug/dri";
 798             error = stat(path, &st);
 799          }
 800          if (error != 0) {
 801             path = "/sys/kernel/debug/dri";
 802             error = stat(path, &st);
 803          }
 804          if (error != 0) {
 805             errx(1,
 806                  "Couldn't find i915 debugfs directory.\n\n"
 807                  "Is debugfs mounted? You might try mounting it with a command such as:\n\n"
 808                  "\tsudo mount -t debugfs debugfs /sys/kernel/debug\n");
 809          }
 810       } else {
 811          read_data_file(stdin);
 812          exit(EXIT_SUCCESS);
 813       }
 814    } else {
 815       path = argv[optind];
 816       error = stat(path, &st);
 817       if (error != 0) {
 818          fprintf(stderr, "Error opening %s: %s\n",
 819                  path, strerror(errno));
 820          exit(EXIT_FAILURE);
 821       }
 822    }
 823
 824    if (option_color == COLOR_AUTO)
 825       option_color = isatty(1) ? COLOR_ALWAYS : COLOR_NEVER;
 826
 827    if (isatty(1) && pager)
 828       setup_pager();
 829
 830    if (S_ISDIR(st.st_mode)) {
 831       int ret;
 832       char *filename;
 833
 834       ret = asprintf(&filename, "%s/i915_error_state", path);
 835       assert(ret > 0);
 836       file = fopen(filename, "r");
 837       if (!file) {
 838          int minor;
 839          free(filename);
 840          for (minor = 0; minor < 64; minor++) {
 841             ret = asprintf(&filename, "%s/%d/i915_error_state", path, minor);
 842             assert(ret > 0);
 843
 844             file = fopen(filename, "r");
 845             if (file)
 846                break;
 847
 848             free(filename);
 849          }
 850       }
 851       if (!file) {
 852          fprintf(stderr, "Failed to find i915_error_state beneath %s\n",
 853                  path);
 854          return EXIT_FAILURE;
 855       }
 856    } else {
 857       file = fopen(path, "r");
 858       if (!file) {
 859          fprintf(stderr, "Failed to open %s: %s\n",
 860                  path, strerror(errno));
 861          return EXIT_FAILURE;
 862       }
 863    }
 864
 865    read_data_file(file);
 866    fclose(file);
 867
 868    /* close the stdout which is opened to write the output */
 869    fflush(stdout);
 870    close(1);
 871    wait(NULL);
 872
 873    if (xml_path)
 874       free(xml_path);
 875
 876    return EXIT_SUCCESS;
 877 }
 878
 879 /* vim: set ts=8 sw=8 tw=0 cino=:0,(0 noet :*/