src/intel/tools/aubinator.c

   1 /*
   2  * Copyright © 2016 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 #include <stdio.h>
  25 #include <stdlib.h>
  26 #include <stdint.h>
  27 #include <stdbool.h>
  28 #include <getopt.h>
  29
  30 #include <unistd.h>
  31 #include <fcntl.h>
  32 #include <string.h>
  33 #include <signal.h>
  34 #include <errno.h>
  35 #include <inttypes.h>
  36 #include <sys/types.h>
  37 #include <sys/stat.h>
  38 #include <sys/wait.h>
  39 #include <sys/mman.h>
  40
  41 #include "util/macros.h"
  42
  43 #include "aub_read.h"
  44 #include "aub_mem.h"
  45
  46 #define CSI "\e["
  47 #define BLUE_HEADER  CSI "0;44m"
  48 #define GREEN_HEADER CSI "1;42m"
  49 #define NORMAL       CSI "0m"
  50
  51 /* options */
  52
  53 static int option_full_decode = true;
  54 static int option_print_offsets = true;
  55 static int max_vbo_lines = -1;
  56 static enum { COLOR_AUTO, COLOR_ALWAYS, COLOR_NEVER } option_color;
  57
  58 /* state */
  59
  60 uint16_t pci_id = 0;
  61 char *input_file = NULL, *xml_path = NULL;
  62 struct gen_device_info devinfo;
  63 struct gen_batch_decode_ctx batch_ctx;
  64 struct aub_mem mem;
  65
  66 FILE *outfile;
  67
  68 struct brw_instruction;
  69
  70 static void
  71 aubinator_error(void *user_data, const void *aub_data, const char *msg)
  72 {
  73    fprintf(stderr, "%s", msg);
  74 }
  75
  76 static void
  77 aubinator_init(void *user_data, int aub_pci_id, const char *app_name)
  78 {
  79    pci_id = aub_pci_id;
  80
  81    if (!gen_get_device_info(pci_id, &devinfo)) {
  82       fprintf(stderr, "can't find device information: pci_id=0x%x\n", pci_id);
  83       exit(EXIT_FAILURE);
  84    }
  85
  86    enum gen_batch_decode_flags batch_flags = 0;
  87    if (option_color == COLOR_ALWAYS)
  88       batch_flags |= GEN_BATCH_DECODE_IN_COLOR;
  89    if (option_full_decode)
  90       batch_flags |= GEN_BATCH_DECODE_FULL;
  91    if (option_print_offsets)
  92       batch_flags |= GEN_BATCH_DECODE_OFFSETS;
  93    batch_flags |= GEN_BATCH_DECODE_FLOATS;
  94
  95    gen_batch_decode_ctx_init(&batch_ctx, &devinfo, outfile, batch_flags,
  96                              xml_path, NULL, NULL, NULL);
  97
  98    /* Check for valid spec instance, if wrong xml_path is passed then spec
  99     * instance is not initialized properly
 100     */
 101    if (!batch_ctx.spec) {
 102       fprintf(stderr, "Failed to initialize gen_batch_decode_ctx "
 103                       "spec instance\n");
 104       free(xml_path);
 105       gen_batch_decode_ctx_finish(&batch_ctx);
 106       exit(EXIT_FAILURE);
 107    }
 108
 109    batch_ctx.max_vbo_decoded_lines = max_vbo_lines;
 110
 111    char *color = GREEN_HEADER, *reset_color = NORMAL;
 112    if (option_color == COLOR_NEVER)
 113       color = reset_color = "";
 114
 115    fprintf(outfile, "%sAubinator: Intel AUB file decoder.%-80s%s\n",
 116            color, "", reset_color);
 117
 118    if (input_file)
 119       fprintf(outfile, "File name:        %s\n", input_file);
 120
 121    if (aub_pci_id)
 122       fprintf(outfile, "PCI ID:           0x%x\n", aub_pci_id);
 123
 124    fprintf(outfile, "Application name: %s\n", app_name);
 125
 126    fprintf(outfile, "Decoding as:      %s\n", gen_get_device_name(pci_id));
 127
 128    /* Throw in a new line before the first batch */
 129    fprintf(outfile, "\n");
 130 }
 131
 132 static void
 133 handle_execlist_write(void *user_data, enum drm_i915_gem_engine_class engine, uint64_t context_descriptor)
 134 {
 135    const uint32_t pphwsp_size = 4096;
 136    uint32_t pphwsp_addr = context_descriptor & 0xfffff000;
 137    struct gen_batch_decode_bo pphwsp_bo = aub_mem_get_ggtt_bo(&mem, pphwsp_addr);
 138    uint32_t *context = (uint32_t *)((uint8_t *)pphwsp_bo.map +
 139                                     (pphwsp_addr - pphwsp_bo.addr) +
 140                                     pphwsp_size);
 141
 142    uint32_t ring_buffer_head = context[5];
 143    uint32_t ring_buffer_tail = context[7];
 144    uint32_t ring_buffer_start = context[9];
 145
 146    mem.pml4 = (uint64_t)context[49] << 32 | context[51];
 147    batch_ctx.user_data = &mem;
 148
 149    struct gen_batch_decode_bo ring_bo = aub_mem_get_ggtt_bo(&mem,
 150                                                             ring_buffer_start);
 151    assert(ring_bo.size > 0);
 152    void *commands = (uint8_t *)ring_bo.map + (ring_buffer_start - ring_bo.addr);
 153
 154    if (context_descriptor & 0x100 /* ppgtt */) {
 155       batch_ctx.get_bo = aub_mem_get_ppgtt_bo;
 156    } else {
 157       batch_ctx.get_bo = aub_mem_get_ggtt_bo;
 158    }
 159
 160    (void)engine; /* TODO */
 161    gen_print_batch(&batch_ctx, commands, ring_buffer_tail - ring_buffer_head,
 162                    0);
 163    aub_mem_clear_bo_maps(&mem);
 164 }
 165
 166 static void
 167 handle_ring_write(void *user_data, enum drm_i915_gem_engine_class engine,
 168                   const void *data, uint32_t data_len)
 169 {
 170    batch_ctx.user_data = &mem;
 171    batch_ctx.get_bo = aub_mem_get_ggtt_bo;
 172
 173    gen_print_batch(&batch_ctx, data, data_len, 0);
 174
 175    aub_mem_clear_bo_maps(&mem);
 176 }
 177
 178 struct aub_file {
 179    FILE *stream;
 180
 181    void *map, *end, *cursor;
 182 };
 183
 184 static struct aub_file *
 185 aub_file_open(const char *filename)
 186 {
 187    struct aub_file *file;
 188    struct stat sb;
 189    int fd;
 190
 191    file = calloc(1, sizeof *file);
 192    if (file == NULL)
 193       return NULL;
 194
 195    fd = open(filename, O_RDONLY);
 196    if (fd == -1) {
 197       fprintf(stderr, "open %s failed: %s\n", filename, strerror(errno));
 198       free(file);
 199       exit(EXIT_FAILURE);
 200    }
 201
 202    if (fstat(fd, &sb) == -1) {
 203       fprintf(stderr, "stat failed: %s\n", strerror(errno));
 204       free(file);
 205       exit(EXIT_FAILURE);
 206    }
 207
 208    file->map = mmap(NULL, sb.st_size,
 209                     PROT_READ, MAP_SHARED, fd, 0);
 210    if (file->map == MAP_FAILED) {
 211       fprintf(stderr, "mmap failed: %s\n", strerror(errno));
 212       free(file);
 213       exit(EXIT_FAILURE);
 214    }
 215
 216    close(fd);
 217
 218    file->cursor = file->map;
 219    file->end = file->map + sb.st_size;
 220
 221    return file;
 222 }
 223
 224 static int
 225 aub_file_more_stuff(struct aub_file *file)
 226 {
 227    return file->cursor < file->end || (file->stream && !feof(file->stream));
 228 }
 229
 230 static void
 231 setup_pager(void)
 232 {
 233    int fds[2];
 234    pid_t pid;
 235
 236    if (!isatty(1))
 237       return;
 238
 239    if (pipe(fds) == -1)
 240       return;
 241
 242    pid = fork();
 243    if (pid == -1)
 244       return;
 245
 246    if (pid == 0) {
 247       close(fds[1]);
 248       dup2(fds[0], 0);
 249       execlp("less", "less", "-FRSi", NULL);
 250    }
 251
 252    close(fds[0]);
 253    dup2(fds[1], 1);
 254    close(fds[1]);
 255 }
 256
 257 static void
 258 print_help(const char *progname, FILE *file)
 259 {
 260    fprintf(file,
 261            "Usage: %s [OPTION]... FILE\n"
 262            "Decode aub file contents from FILE.\n\n"
 263            "      --help             display this help and exit\n"
 264            "      --gen=platform     decode for given platform (3 letter platform name)\n"
 265            "      --headers          decode only command headers\n"
 266            "      --color[=WHEN]     colorize the output; WHEN can be 'auto' (default\n"
 267            "                         if omitted), 'always', or 'never'\n"
 268            "      --max-vbo-lines=N  limit the number of decoded VBO lines\n"
 269            "      --no-pager         don't launch pager\n"
 270            "      --no-offsets       don't print instruction offsets\n"
 271            "      --xml=DIR          load hardware xml description from directory DIR\n",
 272            progname);
 273 }
 274
 275 int main(int argc, char *argv[])
 276 {
 277    struct aub_file *file;
 278    int c, i;
 279    bool help = false, pager = true;
 280    const struct option aubinator_opts[] = {
 281       { "help",          no_argument,       (int *) &help,                 true },
 282       { "no-pager",      no_argument,       (int *) &pager,                false },
 283       { "no-offsets",    no_argument,       (int *) &option_print_offsets, false },
 284       { "gen",           required_argument, NULL,                          'g' },
 285       { "headers",       no_argument,       (int *) &option_full_decode,   false },
 286       { "color",         required_argument, NULL,                          'c' },
 287       { "xml",           required_argument, NULL,                          'x' },
 288       { "max-vbo-lines", required_argument, NULL,                          'v' },
 289       { NULL,            0,                 NULL,                          0 }
 290    };
 291
 292    outfile = stdout;
 293
 294    i = 0;
 295    while ((c = getopt_long(argc, argv, "", aubinator_opts, &i)) != -1) {
 296       switch (c) {
 297       case 'g': {
 298          const int id = gen_device_name_to_pci_device_id(optarg);
 299          if (id < 0) {
 300             fprintf(stderr, "can't parse gen: '%s', expected brw, g4x, ilk, "
 301                             "snb, ivb, hsw, byt, bdw, chv, skl, bxt, kbl, "
 302                             "aml, glk, cfl, whl, cnl, icl", optarg);
 303             exit(EXIT_FAILURE);
 304          } else {
 305             pci_id = id;
 306          }
 307          break;
 308       }
 309       case 'c':
 310          if (optarg == NULL || strcmp(optarg, "always") == 0)
 311             option_color = COLOR_ALWAYS;
 312          else if (strcmp(optarg, "never") == 0)
 313             option_color = COLOR_NEVER;
 314          else if (strcmp(optarg, "auto") == 0)
 315             option_color = COLOR_AUTO;
 316          else {
 317             fprintf(stderr, "invalid value for --color: %s", optarg);
 318             exit(EXIT_FAILURE);
 319          }
 320          break;
 321       case 'x':
 322          xml_path = strdup(optarg);
 323          break;
 324       case 'v':
 325          max_vbo_lines = atoi(optarg);
 326          break;
 327       default:
 328          break;
 329       }
 330    }
 331
 332    if (optind < argc)
 333       input_file = argv[optind];
 334
 335    if (help || !input_file) {
 336       print_help(argv[0], stderr);
 337       exit(0);
 338    }
 339
 340    /* Do this before we redirect stdout to pager. */
 341    if (option_color == COLOR_AUTO)
 342       option_color = isatty(1) ? COLOR_ALWAYS : COLOR_NEVER;
 343
 344    if (isatty(1) && pager)
 345       setup_pager();
 346
 347    if (!aub_mem_init(&mem)) {
 348       fprintf(stderr, "Unable to create GTT\n");
 349       exit(EXIT_FAILURE);
 350    }
 351
 352    file = aub_file_open(input_file);
 353    if (!file) {
 354       fprintf(stderr, "Unable to allocate buffer to open aub file\n");
 355       free(xml_path);
 356       exit(EXIT_FAILURE);
 357    }
 358
 359    struct aub_read aub_read = {
 360       .user_data = &mem,
 361       .error = aubinator_error,
 362       .info = aubinator_init,
 363
 364       .local_write = aub_mem_local_write,
 365       .phys_write = aub_mem_phys_write,
 366       .ggtt_write = aub_mem_ggtt_write,
 367       .ggtt_entry_write = aub_mem_ggtt_entry_write,
 368
 369       .execlist_write = handle_execlist_write,
 370       .ring_write = handle_ring_write,
 371    };
 372    int consumed;
 373    while (aub_file_more_stuff(file) &&
 374           (consumed = aub_read_command(&aub_read, file->cursor,
 375                                        file->end - file->cursor)) > 0) {
 376       file->cursor += consumed;
 377    }
 378
 379    aub_mem_fini(&mem);
 380
 381    fflush(stdout);
 382    /* close the stdout which is opened to write the output */
 383    close(1);
 384    free(file);
 385    free(xml_path);
 386
 387    wait(NULL);
 388    gen_batch_decode_ctx_finish(&batch_ctx);
 389
 390    return EXIT_SUCCESS;
 391 }