src/gallium/drivers/radeonsi/si_debug.c

   1 /*
   2  * Copyright 2015 Advanced Micro Devices, Inc.
   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  * on the rights to use, copy, modify, merge, publish, distribute, sub
   8  * license, and/or sell copies of the Software, and to permit persons to whom
   9  * the 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 NON-INFRINGEMENT. IN NO EVENT SHALL
  18  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  21  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  22  *
  23  * Authors:
  24  *      Marek Olšák <maraeo@gmail.com>
  25  */
  26
  27 #include "si_pipe.h"
  28 #include "sid.h"
  29 #include "sid_tables.h"
  30 #include "radeon/radeon_elf_util.h"
  31 #include "ddebug/dd_util.h"
  32 #include "util/u_memory.h"
  33 #include "ac_debug.h"
  34
  35 DEBUG_GET_ONCE_OPTION(replace_shaders, "RADEON_REPLACE_SHADERS", NULL)
  36
  37 static void si_dump_shader(struct si_screen *sscreen,
  38                            struct si_shader_ctx_state *state, FILE *f)
  39 {
  40         struct si_shader *current = state->current;
  41
  42         if (!state->cso || !current)
  43                 return;
  44
  45         if (current->shader_log)
  46                 fwrite(current->shader_log, current->shader_log_size, 1, f);
  47         else
  48                 si_shader_dump(sscreen, state->current, NULL,
  49                                state->cso->info.processor, f, false);
  50 }
  51
  52 /**
  53  * Shader compiles can be overridden with arbitrary ELF objects by setting
  54  * the environment variable RADEON_REPLACE_SHADERS=num1:filename1[;num2:filename2]
  55  */
  56 bool si_replace_shader(unsigned num, struct radeon_shader_binary *binary)
  57 {
  58         const char *p = debug_get_option_replace_shaders();
  59         const char *semicolon;
  60         char *copy = NULL;
  61         FILE *f;
  62         long filesize, nread;
  63         char *buf = NULL;
  64         bool replaced = false;
  65
  66         if (!p)
  67                 return false;
  68
  69         while (*p) {
  70                 unsigned long i;
  71                 char *endp;
  72                 i = strtoul(p, &endp, 0);
  73
  74                 p = endp;
  75                 if (*p != ':') {
  76                         fprintf(stderr, "RADEON_REPLACE_SHADERS formatted badly.\n");
  77                         exit(1);
  78                 }
  79                 ++p;
  80
  81                 if (i == num)
  82                         break;
  83
  84                 p = strchr(p, ';');
  85                 if (!p)
  86                         return false;
  87                 ++p;
  88         }
  89         if (!*p)
  90                 return false;
  91
  92         semicolon = strchr(p, ';');
  93         if (semicolon) {
  94                 p = copy = strndup(p, semicolon - p);
  95                 if (!copy) {
  96                         fprintf(stderr, "out of memory\n");
  97                         return false;
  98                 }
  99         }
 100
 101         fprintf(stderr, "radeonsi: replace shader %u by %s\n", num, p);
 102
 103         f = fopen(p, "r");
 104         if (!f) {
 105                 perror("radeonsi: failed to open file");
 106                 goto out_free;
 107         }
 108
 109         if (fseek(f, 0, SEEK_END) != 0)
 110                 goto file_error;
 111
 112         filesize = ftell(f);
 113         if (filesize < 0)
 114                 goto file_error;
 115
 116         if (fseek(f, 0, SEEK_SET) != 0)
 117                 goto file_error;
 118
 119         buf = MALLOC(filesize);
 120         if (!buf) {
 121                 fprintf(stderr, "out of memory\n");
 122                 goto out_close;
 123         }
 124
 125         nread = fread(buf, 1, filesize, f);
 126         if (nread != filesize)
 127                 goto file_error;
 128
 129         radeon_elf_read(buf, filesize, binary);
 130         replaced = true;
 131
 132 out_close:
 133         fclose(f);
 134 out_free:
 135         FREE(buf);
 136         free(copy);
 137         return replaced;
 138
 139 file_error:
 140         perror("radeonsi: reading shader");
 141         goto out_close;
 142 }
 143
 144 /* Parsed IBs are difficult to read without colors. Use "less -R file" to
 145  * read them, or use "aha -b -f file" to convert them to html.
 146  */
 147 #define COLOR_RESET     "\033[0m"
 148 #define COLOR_RED       "\033[31m"
 149 #define COLOR_GREEN     "\033[1;32m"
 150 #define COLOR_YELLOW    "\033[1;33m"
 151 #define COLOR_CYAN      "\033[1;36m"
 152
 153 static void si_dump_mmapped_reg(struct si_context *sctx, FILE *f,
 154                                 unsigned offset)
 155 {
 156         struct radeon_winsys *ws = sctx->b.ws;
 157         uint32_t value;
 158
 159         if (ws->read_registers(ws, offset, 1, &value))
 160                 ac_dump_reg(f, offset, value, ~0);
 161 }
 162
 163 static void si_dump_debug_registers(struct si_context *sctx, FILE *f)
 164 {
 165         if (sctx->screen->b.info.drm_major == 2 &&
 166             sctx->screen->b.info.drm_minor < 42)
 167                 return; /* no radeon support */
 168
 169         fprintf(f, "Memory-mapped registers:\n");
 170         si_dump_mmapped_reg(sctx, f, R_008010_GRBM_STATUS);
 171
 172         /* No other registers can be read on DRM < 3.1.0. */
 173         if (sctx->screen->b.info.drm_major < 3 ||
 174             sctx->screen->b.info.drm_minor < 1) {
 175                 fprintf(f, "\n");
 176                 return;
 177         }
 178
 179         si_dump_mmapped_reg(sctx, f, R_008008_GRBM_STATUS2);
 180         si_dump_mmapped_reg(sctx, f, R_008014_GRBM_STATUS_SE0);
 181         si_dump_mmapped_reg(sctx, f, R_008018_GRBM_STATUS_SE1);
 182         si_dump_mmapped_reg(sctx, f, R_008038_GRBM_STATUS_SE2);
 183         si_dump_mmapped_reg(sctx, f, R_00803C_GRBM_STATUS_SE3);
 184         si_dump_mmapped_reg(sctx, f, R_00D034_SDMA0_STATUS_REG);
 185         si_dump_mmapped_reg(sctx, f, R_00D834_SDMA1_STATUS_REG);
 186         si_dump_mmapped_reg(sctx, f, R_000E50_SRBM_STATUS);
 187         si_dump_mmapped_reg(sctx, f, R_000E4C_SRBM_STATUS2);
 188         si_dump_mmapped_reg(sctx, f, R_000E54_SRBM_STATUS3);
 189         si_dump_mmapped_reg(sctx, f, R_008680_CP_STAT);
 190         si_dump_mmapped_reg(sctx, f, R_008674_CP_STALLED_STAT1);
 191         si_dump_mmapped_reg(sctx, f, R_008678_CP_STALLED_STAT2);
 192         si_dump_mmapped_reg(sctx, f, R_008670_CP_STALLED_STAT3);
 193         si_dump_mmapped_reg(sctx, f, R_008210_CP_CPC_STATUS);
 194         si_dump_mmapped_reg(sctx, f, R_008214_CP_CPC_BUSY_STAT);
 195         si_dump_mmapped_reg(sctx, f, R_008218_CP_CPC_STALLED_STAT1);
 196         si_dump_mmapped_reg(sctx, f, R_00821C_CP_CPF_STATUS);
 197         si_dump_mmapped_reg(sctx, f, R_008220_CP_CPF_BUSY_STAT);
 198         si_dump_mmapped_reg(sctx, f, R_008224_CP_CPF_STALLED_STAT1);
 199         fprintf(f, "\n");
 200 }
 201
 202 static void si_dump_last_ib(struct si_context *sctx, FILE *f)
 203 {
 204         int last_trace_id = -1;
 205
 206         if (!sctx->last_gfx.ib)
 207                 return;
 208
 209         if (sctx->last_trace_buf) {
 210                 /* We are expecting that the ddebug pipe has already
 211                  * waited for the context, so this buffer should be idle.
 212                  * If the GPU is hung, there is no point in waiting for it.
 213                  */
 214                 uint32_t *map = sctx->b.ws->buffer_map(sctx->last_trace_buf->buf,
 215                                                        NULL,
 216                                                        PIPE_TRANSFER_UNSYNCHRONIZED |
 217                                                        PIPE_TRANSFER_READ);
 218                 if (map)
 219                         last_trace_id = *map;
 220         }
 221
 222         if (sctx->init_config)
 223                 ac_parse_ib(f, sctx->init_config->pm4, sctx->init_config->ndw,
 224                             -1, "IB2: Init config", sctx->b.chip_class);
 225
 226         if (sctx->init_config_gs_rings)
 227                 ac_parse_ib(f, sctx->init_config_gs_rings->pm4,
 228                             sctx->init_config_gs_rings->ndw,
 229                             -1, "IB2: Init GS rings", sctx->b.chip_class);
 230
 231         ac_parse_ib(f, sctx->last_gfx.ib, sctx->last_gfx.num_dw,
 232                     last_trace_id, "IB", sctx->b.chip_class);
 233 }
 234
 235 static const char *priority_to_string(enum radeon_bo_priority priority)
 236 {
 237 #define ITEM(x) [RADEON_PRIO_##x] = #x
 238         static const char *table[64] = {
 239                 ITEM(FENCE),
 240                 ITEM(TRACE),
 241                 ITEM(SO_FILLED_SIZE),
 242                 ITEM(QUERY),
 243                 ITEM(IB1),
 244                 ITEM(IB2),
 245                 ITEM(DRAW_INDIRECT),
 246                 ITEM(INDEX_BUFFER),
 247                 ITEM(VCE),
 248                 ITEM(UVD),
 249                 ITEM(SDMA_BUFFER),
 250                 ITEM(SDMA_TEXTURE),
 251                 ITEM(CP_DMA),
 252                 ITEM(CONST_BUFFER),
 253                 ITEM(DESCRIPTORS),
 254                 ITEM(BORDER_COLORS),
 255                 ITEM(SAMPLER_BUFFER),
 256                 ITEM(VERTEX_BUFFER),
 257                 ITEM(SHADER_RW_BUFFER),
 258                 ITEM(COMPUTE_GLOBAL),
 259                 ITEM(SAMPLER_TEXTURE),
 260                 ITEM(SHADER_RW_IMAGE),
 261                 ITEM(SAMPLER_TEXTURE_MSAA),
 262                 ITEM(COLOR_BUFFER),
 263                 ITEM(DEPTH_BUFFER),
 264                 ITEM(COLOR_BUFFER_MSAA),
 265                 ITEM(DEPTH_BUFFER_MSAA),
 266                 ITEM(CMASK),
 267                 ITEM(DCC),
 268                 ITEM(HTILE),
 269                 ITEM(SHADER_BINARY),
 270                 ITEM(SHADER_RINGS),
 271                 ITEM(SCRATCH_BUFFER),
 272         };
 273 #undef ITEM
 274
 275         assert(priority < ARRAY_SIZE(table));
 276         return table[priority];
 277 }
 278
 279 static int bo_list_compare_va(const struct radeon_bo_list_item *a,
 280                                    const struct radeon_bo_list_item *b)
 281 {
 282         return a->vm_address < b->vm_address ? -1 :
 283                a->vm_address > b->vm_address ? 1 : 0;
 284 }
 285
 286 static void si_dump_bo_list(struct si_context *sctx,
 287                             const struct radeon_saved_cs *saved, FILE *f)
 288 {
 289         unsigned i,j;
 290
 291         if (!saved->bo_list)
 292                 return;
 293
 294         /* Sort the list according to VM adddresses first. */
 295         qsort(saved->bo_list, saved->bo_count,
 296               sizeof(saved->bo_list[0]), (void*)bo_list_compare_va);
 297
 298         fprintf(f, "Buffer list (in units of pages = 4kB):\n"
 299                 COLOR_YELLOW "        Size    VM start page         "
 300                 "VM end page           Usage" COLOR_RESET "\n");
 301
 302         for (i = 0; i < saved->bo_count; i++) {
 303                 /* Note: Buffer sizes are expected to be aligned to 4k by the winsys. */
 304                 const unsigned page_size = sctx->b.screen->info.gart_page_size;
 305                 uint64_t va = saved->bo_list[i].vm_address;
 306                 uint64_t size = saved->bo_list[i].bo_size;
 307                 bool hit = false;
 308
 309                 /* If there's unused virtual memory between 2 buffers, print it. */
 310                 if (i) {
 311                         uint64_t previous_va_end = saved->bo_list[i-1].vm_address +
 312                                                    saved->bo_list[i-1].bo_size;
 313
 314                         if (va > previous_va_end) {
 315                                 fprintf(f, "  %10"PRIu64"    -- hole --\n",
 316                                         (va - previous_va_end) / page_size);
 317                         }
 318                 }
 319
 320                 /* Print the buffer. */
 321                 fprintf(f, "  %10"PRIu64"    0x%013"PRIX64"       0x%013"PRIX64"       ",
 322                         size / page_size, va / page_size, (va + size) / page_size);
 323
 324                 /* Print the usage. */
 325                 for (j = 0; j < 64; j++) {
 326                         if (!(saved->bo_list[i].priority_usage & (1llu << j)))
 327                                 continue;
 328
 329                         fprintf(f, "%s%s", !hit ? "" : ", ", priority_to_string(j));
 330                         hit = true;
 331                 }
 332                 fprintf(f, "\n");
 333         }
 334         fprintf(f, "\nNote: The holes represent memory not used by the IB.\n"
 335                    "      Other buffers can still be allocated there.\n\n");
 336 }
 337
 338 static void si_dump_framebuffer(struct si_context *sctx, FILE *f)
 339 {
 340         struct pipe_framebuffer_state *state = &sctx->framebuffer.state;
 341         struct r600_texture *rtex;
 342         int i;
 343
 344         for (i = 0; i < state->nr_cbufs; i++) {
 345                 if (!state->cbufs[i])
 346                         continue;
 347
 348                 rtex = (struct r600_texture*)state->cbufs[i]->texture;
 349                 fprintf(f, COLOR_YELLOW "Color buffer %i:" COLOR_RESET "\n", i);
 350                 r600_print_texture_info(rtex, f);
 351                 fprintf(f, "\n");
 352         }
 353
 354         if (state->zsbuf) {
 355                 rtex = (struct r600_texture*)state->zsbuf->texture;
 356                 fprintf(f, COLOR_YELLOW "Depth-stencil buffer:" COLOR_RESET "\n");
 357                 r600_print_texture_info(rtex, f);
 358                 fprintf(f, "\n");
 359         }
 360 }
 361
 362 static void si_dump_descriptor_list(struct si_descriptors *desc,
 363                                     const char *shader_name,
 364                                     const char *elem_name,
 365                                     unsigned num_elements,
 366                                     FILE *f)
 367 {
 368         unsigned i, j;
 369         uint32_t *cpu_list = desc->list;
 370         uint32_t *gpu_list = desc->gpu_list;
 371         const char *list_note = "GPU list";
 372
 373         if (!gpu_list) {
 374                 gpu_list = cpu_list;
 375                 list_note = "CPU list";
 376         }
 377
 378         for (i = 0; i < num_elements; i++) {
 379                 fprintf(f, COLOR_GREEN "%s%s slot %u (%s):" COLOR_RESET "\n",
 380                         shader_name, elem_name, i, list_note);
 381
 382                 switch (desc->element_dw_size) {
 383                 case 4:
 384                         for (j = 0; j < 4; j++)
 385                                 ac_dump_reg(f, R_008F00_SQ_BUF_RSRC_WORD0 + j*4,
 386                                             gpu_list[j], 0xffffffff);
 387                         break;
 388                 case 8:
 389                         for (j = 0; j < 8; j++)
 390                                 ac_dump_reg(f, R_008F10_SQ_IMG_RSRC_WORD0 + j*4,
 391                                             gpu_list[j], 0xffffffff);
 392
 393                         fprintf(f, COLOR_CYAN "    Buffer:" COLOR_RESET "\n");
 394                         for (j = 0; j < 4; j++)
 395                                 ac_dump_reg(f, R_008F00_SQ_BUF_RSRC_WORD0 + j*4,
 396                                             gpu_list[4+j], 0xffffffff);
 397                         break;
 398                 case 16:
 399                         for (j = 0; j < 8; j++)
 400                                 ac_dump_reg(f, R_008F10_SQ_IMG_RSRC_WORD0 + j*4,
 401                                             gpu_list[j], 0xffffffff);
 402
 403                         fprintf(f, COLOR_CYAN "    Buffer:" COLOR_RESET "\n");
 404                         for (j = 0; j < 4; j++)
 405                                 ac_dump_reg(f, R_008F00_SQ_BUF_RSRC_WORD0 + j*4,
 406                                             gpu_list[4+j], 0xffffffff);
 407
 408                         fprintf(f, COLOR_CYAN "    FMASK:" COLOR_RESET "\n");
 409                         for (j = 0; j < 8; j++)
 410                                 ac_dump_reg(f, R_008F10_SQ_IMG_RSRC_WORD0 + j*4,
 411                                             gpu_list[8+j], 0xffffffff);
 412
 413                         fprintf(f, COLOR_CYAN "    Sampler state:" COLOR_RESET "\n");
 414                         for (j = 0; j < 4; j++)
 415                                 ac_dump_reg(f, R_008F30_SQ_IMG_SAMP_WORD0 + j*4,
 416                                             gpu_list[12+j], 0xffffffff);
 417                         break;
 418                 }
 419
 420                 if (memcmp(gpu_list, cpu_list, desc->element_dw_size * 4) != 0) {
 421                         fprintf(f, COLOR_RED "!!!!! This slot was corrupted in GPU memory !!!!!"
 422                                 COLOR_RESET "\n");
 423                 }
 424
 425                 fprintf(f, "\n");
 426                 gpu_list += desc->element_dw_size;
 427                 cpu_list += desc->element_dw_size;
 428         }
 429 }
 430
 431 static void si_dump_descriptors(struct si_context *sctx,
 432                                 struct si_shader_ctx_state *state,
 433                                 FILE *f)
 434 {
 435         if (!state->cso || !state->current)
 436                 return;
 437
 438         unsigned type = state->cso->type;
 439         const struct tgsi_shader_info *info = &state->cso->info;
 440         struct si_descriptors *descs =
 441                 &sctx->descriptors[SI_DESCS_FIRST_SHADER +
 442                                    type * SI_NUM_SHADER_DESCS];
 443         static const char *shader_name[] = {"VS", "PS", "GS", "TCS", "TES", "CS"};
 444
 445         static const char *elem_name[] = {
 446                 " - Constant buffer",
 447                 " - Shader buffer",
 448                 " - Sampler",
 449                 " - Image",
 450         };
 451         unsigned num_elements[] = {
 452                 util_last_bit(info->const_buffers_declared),
 453                 util_last_bit(info->shader_buffers_declared),
 454                 util_last_bit(info->samplers_declared),
 455                 util_last_bit(info->images_declared),
 456         };
 457
 458         if (type == PIPE_SHADER_VERTEX) {
 459                 si_dump_descriptor_list(&sctx->vertex_buffers, shader_name[type],
 460                                         " - Vertex buffer", info->num_inputs, f);
 461         }
 462
 463         for (unsigned i = 0; i < SI_NUM_SHADER_DESCS; ++i, ++descs)
 464                 si_dump_descriptor_list(descs, shader_name[type], elem_name[i],
 465                                         num_elements[i], f);
 466 }
 467
 468 static void si_dump_debug_state(struct pipe_context *ctx, FILE *f,
 469                                 unsigned flags)
 470 {
 471         struct si_context *sctx = (struct si_context*)ctx;
 472
 473         if (flags & PIPE_DUMP_DEVICE_STATUS_REGISTERS)
 474                 si_dump_debug_registers(sctx, f);
 475
 476         if (flags & PIPE_DUMP_CURRENT_STATES)
 477                 si_dump_framebuffer(sctx, f);
 478
 479         if (flags & PIPE_DUMP_CURRENT_SHADERS) {
 480                 si_dump_shader(sctx->screen, &sctx->vs_shader, f);
 481                 si_dump_shader(sctx->screen, &sctx->tcs_shader, f);
 482                 si_dump_shader(sctx->screen, &sctx->tes_shader, f);
 483                 si_dump_shader(sctx->screen, &sctx->gs_shader, f);
 484                 si_dump_shader(sctx->screen, &sctx->ps_shader, f);
 485
 486                 si_dump_descriptor_list(&sctx->descriptors[SI_DESCS_RW_BUFFERS],
 487                                         "", "RW buffers", SI_NUM_RW_BUFFERS, f);
 488                 si_dump_descriptors(sctx, &sctx->vs_shader, f);
 489                 si_dump_descriptors(sctx, &sctx->tcs_shader, f);
 490                 si_dump_descriptors(sctx, &sctx->tes_shader, f);
 491                 si_dump_descriptors(sctx, &sctx->gs_shader, f);
 492                 si_dump_descriptors(sctx, &sctx->ps_shader, f);
 493         }
 494
 495         if (flags & PIPE_DUMP_LAST_COMMAND_BUFFER) {
 496                 si_dump_bo_list(sctx, &sctx->last_gfx, f);
 497                 si_dump_last_ib(sctx, f);
 498
 499                 fprintf(f, "Done.\n");
 500
 501                 /* dump only once */
 502                 radeon_clear_saved_cs(&sctx->last_gfx);
 503                 r600_resource_reference(&sctx->last_trace_buf, NULL);
 504         }
 505 }
 506
 507 static void si_dump_dma(struct si_context *sctx,
 508                         struct radeon_saved_cs *saved, FILE *f)
 509 {
 510         static const char ib_name[] = "sDMA IB";
 511         unsigned i;
 512
 513         si_dump_bo_list(sctx, saved, f);
 514
 515         fprintf(f, "------------------ %s begin ------------------\n", ib_name);
 516
 517         for (i = 0; i < saved->num_dw; ++i) {
 518                 fprintf(f, " %08x\n", saved->ib[i]);
 519         }
 520
 521         fprintf(f, "------------------- %s end -------------------\n", ib_name);
 522         fprintf(f, "\n");
 523
 524         fprintf(f, "SDMA Dump Done.\n");
 525 }
 526
 527 static bool si_vm_fault_occured(struct si_context *sctx, uint32_t *out_addr)
 528 {
 529         char line[2000];
 530         unsigned sec, usec;
 531         int progress = 0;
 532         uint64_t timestamp = 0;
 533         bool fault = false;
 534
 535         FILE *p = popen("dmesg", "r");
 536         if (!p)
 537                 return false;
 538
 539         while (fgets(line, sizeof(line), p)) {
 540                 char *msg, len;
 541
 542                 if (!line[0] || line[0] == '\n')
 543                         continue;
 544
 545                 /* Get the timestamp. */
 546                 if (sscanf(line, "[%u.%u]", &sec, &usec) != 2) {
 547                         static bool hit = false;
 548                         if (!hit) {
 549                                 fprintf(stderr, "%s: failed to parse line '%s'\n",
 550                                         __func__, line);
 551                                 hit = true;
 552                         }
 553                         continue;
 554                 }
 555                 timestamp = sec * 1000000llu + usec;
 556
 557                 /* If just updating the timestamp. */
 558                 if (!out_addr)
 559                         continue;
 560
 561                 /* Process messages only if the timestamp is newer. */
 562                 if (timestamp <= sctx->dmesg_timestamp)
 563                         continue;
 564
 565                 /* Only process the first VM fault. */
 566                 if (fault)
 567                         continue;
 568
 569                 /* Remove trailing \n */
 570                 len = strlen(line);
 571                 if (len && line[len-1] == '\n')
 572                         line[len-1] = 0;
 573
 574                 /* Get the message part. */
 575                 msg = strchr(line, ']');
 576                 if (!msg) {
 577                         assert(0);
 578                         continue;
 579                 }
 580                 msg++;
 581
 582                 switch (progress) {
 583                 case 0:
 584                         if (strstr(msg, "GPU fault detected:"))
 585                                 progress = 1;
 586                         break;
 587                 case 1:
 588                         msg = strstr(msg, "VM_CONTEXT1_PROTECTION_FAULT_ADDR");
 589                         if (msg) {
 590                                 msg = strstr(msg, "0x");
 591                                 if (msg) {
 592                                         msg += 2;
 593                                         if (sscanf(msg, "%X", out_addr) == 1)
 594                                                 fault = true;
 595                                 }
 596                         }
 597                         progress = 0;
 598                         break;
 599                 default:
 600                         progress = 0;
 601                 }
 602         }
 603         pclose(p);
 604
 605         if (timestamp > sctx->dmesg_timestamp)
 606                 sctx->dmesg_timestamp = timestamp;
 607         return fault;
 608 }
 609
 610 void si_check_vm_faults(struct r600_common_context *ctx,
 611                         struct radeon_saved_cs *saved, enum ring_type ring)
 612 {
 613         struct si_context *sctx = (struct si_context *)ctx;
 614         struct pipe_screen *screen = sctx->b.b.screen;
 615         FILE *f;
 616         uint32_t addr;
 617         char cmd_line[4096];
 618
 619         if (!si_vm_fault_occured(sctx, &addr))
 620                 return;
 621
 622         f = dd_get_debug_file(false);
 623         if (!f)
 624                 return;
 625
 626         fprintf(f, "VM fault report.\n\n");
 627         if (os_get_command_line(cmd_line, sizeof(cmd_line)))
 628                 fprintf(f, "Command: %s\n", cmd_line);
 629         fprintf(f, "Driver vendor: %s\n", screen->get_vendor(screen));
 630         fprintf(f, "Device vendor: %s\n", screen->get_device_vendor(screen));
 631         fprintf(f, "Device name: %s\n\n", screen->get_name(screen));
 632         fprintf(f, "Failing VM page: 0x%08x\n\n", addr);
 633
 634         if (sctx->apitrace_call_number)
 635                 fprintf(f, "Last apitrace call: %u\n\n",
 636                         sctx->apitrace_call_number);
 637
 638         switch (ring) {
 639         case RING_GFX:
 640                 si_dump_debug_state(&sctx->b.b, f,
 641                                     PIPE_DUMP_CURRENT_STATES |
 642                                     PIPE_DUMP_CURRENT_SHADERS |
 643                                     PIPE_DUMP_LAST_COMMAND_BUFFER);
 644                 break;
 645
 646         case RING_DMA:
 647                 si_dump_dma(sctx, saved, f);
 648                 break;
 649
 650         default:
 651                 break;
 652         }
 653
 654         fclose(f);
 655
 656         fprintf(stderr, "Detected a VM fault, exiting...\n");
 657         exit(0);
 658 }
 659
 660 void si_init_debug_functions(struct si_context *sctx)
 661 {
 662         sctx->b.b.dump_debug_state = si_dump_debug_state;
 663         sctx->b.check_vm_faults = si_check_vm_faults;
 664
 665         /* Set the initial dmesg timestamp for this context, so that
 666          * only new messages will be checked for VM faults.
 667          */
 668         if (sctx->screen->b.debug_flags & DBG_CHECK_VM)
 669                 si_vm_fault_occured(sctx, NULL);
 670 }