tests/kms_setmode.c

   1 /*
   2  * Permission is hereby granted, free of charge, to any person obtaining a
   3  * copy of this software and associated documentation files (the "Software"),
   4  * to deal in the Software without restriction, including without limitation
   5  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   6  * and/or sell copies of the Software, and to permit persons to whom the
   7  * Software is furnished to do so, subject to the following conditions:
   8  *
   9  * The above copyright notice and this permission notice shall be included in
  10  * all copies or substantial portions of the Software.
  11  *
  12  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  13  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  14  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  15  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  16  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  17  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  18  * IN THE SOFTWARE.
  19  *
  20  * Authors:
  21  *    Imre Deak <imre.deak@intel.com>
  22  */
  23 #ifdef HAVE_CONFIG_H
  24 #include "config.h"
  25 #endif
  26
  27 #include <assert.h>
  28 #include <cairo.h>
  29 #include <errno.h>
  30 #include <stdint.h>
  31 #include <unistd.h>
  32 #include <string.h>
  33 #include <getopt.h>
  34 #include <sys/time.h>
  35
  36 #include "drm_fourcc.h"
  37 #include "drmtest.h"
  38 #include "intel_bufmgr.h"
  39 #include "intel_batchbuffer.h"
  40 #include "intel_gpu_tools.h"
  41 #include "igt_kms.h"
  42
  43 #define MAX_CONNECTORS  10
  44 #define MAX_CRTCS       3
  45
  46 /* max combinations with repetitions */
  47 #define MAX_COMBINATION_COUNT   \
  48         (MAX_CONNECTORS * MAX_CONNECTORS * MAX_CONNECTORS)
  49 #define MAX_COMBINATION_ELEMS   MAX_CRTCS
  50
  51 static int drm_fd;
  52 static drmModeRes *drm_resources;
  53 static int filter_test_id;
  54 static bool dry_run;
  55
  56 const drmModeModeInfo mode_640_480 = {
  57         .name           = "640x480",
  58         .vrefresh       = 60,
  59         .clock          = 25200,
  60
  61         .hdisplay       = 640,
  62         .hsync_start    = 656,
  63         .hsync_end      = 752,
  64         .htotal         = 800,
  65
  66         .vdisplay       = 480,
  67         .vsync_start    = 490,
  68         .vsync_end      = 492,
  69         .vtotal         = 525,
  70
  71         .flags          = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
  72 };
  73
  74 enum test_flags {
  75         TEST_INVALID                    = 0x01,
  76         TEST_CLONE                      = 0x02,
  77         TEST_SINGLE_CRTC_CLONE          = 0x04,
  78         TEST_EXCLUSIVE_CRTC_CLONE       = 0x08,
  79 };
  80
  81 struct test_config {
  82         const char *name;
  83         enum test_flags flags;
  84         drmModeRes *resources;
  85 };
  86
  87 struct connector_config {
  88         drmModeConnector *connector;
  89         int crtc_idx;
  90         bool connected;
  91         drmModeModeInfo default_mode;
  92 };
  93
  94 struct crtc_config {
  95         int crtc_idx;
  96         int crtc_id;
  97         int pipe_id;
  98         int connector_count;
  99         struct connector_config *cconfs;
 100         struct kmstest_fb fb_info;
 101         drmModeModeInfo mode;
 102 };
 103
 104 static bool drm_mode_equal(drmModeModeInfo *m1, drmModeModeInfo *m2)
 105 {
 106 #define COMP(x) do { if (m1->x != m2->x) return false; } while (0)
 107         COMP(vrefresh);
 108         COMP(clock);
 109         COMP(hdisplay);
 110         COMP(hsync_start);
 111         COMP(hsync_end);
 112         COMP(htotal);
 113         COMP(vdisplay);
 114         COMP(vsync_start);
 115         COMP(vsync_end);
 116         COMP(vtotal);
 117         COMP(flags);
 118
 119         return true;
 120 }
 121
 122 static bool connector_supports_mode(drmModeConnector *connector,
 123                                     drmModeModeInfo *mode)
 124 {
 125         int i;
 126
 127         for (i = 0; i < connector->count_modes; i++)
 128                 if (drm_mode_equal(&connector->modes[i], mode))
 129                         return true;
 130
 131         return false;
 132 }
 133
 134 static bool crtc_supports_mode(struct crtc_config *crtc, drmModeModeInfo *mode)
 135 {
 136         int i;
 137
 138         for (i = 0; i < crtc->connector_count; i++) {
 139                 if (!connector_supports_mode(crtc->cconfs[i].connector, mode))
 140                         return false;
 141         }
 142
 143         return true;
 144 }
 145
 146 static int paint_fb(struct kmstest_fb *fb, const char *test_name,
 147                     const char **crtc_str, int crtc_count, int current_crtc_idx)
 148 {
 149         double x, y;
 150         cairo_t *cr;
 151         int i;
 152
 153         cr = kmstest_get_cairo_ctx(drm_fd, fb);
 154
 155         kmstest_paint_test_pattern(cr, fb->width, fb->height);
 156
 157         cairo_select_font_face(cr, "Helvetica", CAIRO_FONT_SLANT_NORMAL,
 158                                CAIRO_FONT_WEIGHT_NORMAL);
 159         cairo_move_to(cr, fb->width / 2, fb->height / 2);
 160         cairo_set_font_size(cr, 24);
 161         kmstest_cairo_printf_line(cr, align_hcenter, 40, "%s", test_name);
 162
 163         cairo_get_current_point(cr, &x, &y);
 164         cairo_move_to(cr, 60, y);
 165
 166         for (i = 0; i < crtc_count; i++) {
 167                 if (i == current_crtc_idx) {
 168                         cairo_get_current_point(cr, &x, &y);
 169                         cairo_move_to(cr, x - 20, y);
 170                         kmstest_cairo_printf_line(cr, align_right, 20, "X");
 171                         cairo_move_to(cr, x, y);
 172                 }
 173                 kmstest_cairo_printf_line(cr, align_left, 20, "%s",
 174                                           crtc_str[i]);
 175         }
 176
 177         cairo_destroy(cr);
 178
 179         return 0;
 180 }
 181
 182 static void create_fb_for_crtc(struct crtc_config *crtc,
 183                                struct kmstest_fb *fb_info)
 184 {
 185         int bpp;
 186         int depth;
 187         bool enable_tiling;
 188         int fb_id;
 189
 190         bpp = 32;
 191         depth = 24;
 192         enable_tiling = false;
 193         fb_id = kmstest_create_fb(drm_fd, crtc->mode.hdisplay,
 194                                   crtc->mode.vdisplay, bpp, depth,
 195                                   enable_tiling, fb_info);
 196         assert(fb_id > 0);
 197 }
 198
 199 static void get_mode_for_crtc(struct crtc_config *crtc,
 200                               drmModeModeInfo *mode_ret)
 201 {
 202         drmModeModeInfo mode;
 203         int i;
 204
 205         /*
 206          * First try to select a default mode that is supported by all
 207          * connectors.
 208          */
 209         for (i = 0; i < crtc->connector_count; i++) {
 210                 mode = crtc->cconfs[i].default_mode;
 211                 if (crtc_supports_mode(crtc, &mode))
 212                         goto found;
 213         }
 214
 215         /*
 216          * Then just fall back to find any that is supported by all
 217          * connectors.
 218          */
 219         for (i = 0; i < crtc->cconfs[0].connector->count_modes; i++) {
 220                 mode = crtc->cconfs[0].connector->modes[i];
 221                 if (crtc_supports_mode(crtc, &mode))
 222                         goto found;
 223         }
 224
 225         /*
 226          * If none is found then just pick the default mode of the first
 227          * connector and hope the other connectors can support it by scaling
 228          * etc.
 229          */
 230         mode = crtc->cconfs[0].default_mode;
 231 found:
 232         *mode_ret = mode;
 233 }
 234
 235 static int get_encoder_idx(drmModeRes *resources, drmModeEncoder *encoder)
 236 {
 237         int i;
 238
 239         for (i = 0; i < resources->count_encoders; i++)
 240                 if (resources->encoders[i] == encoder->encoder_id)
 241                         return i;
 242         assert(0);
 243 }
 244
 245 static void get_crtc_config_str(struct crtc_config *crtc, char *buf,
 246                                 size_t buf_size)
 247 {
 248         int pos;
 249         int i;
 250
 251         pos = snprintf(buf, buf_size,
 252                        "CRTC[%d] [Pipe %s] Mode: %s@%dHz Connectors: ",
 253                        crtc->crtc_id, kmstest_pipe_str(crtc->pipe_id),
 254                        crtc->mode.name, crtc->mode.vrefresh);
 255         if (pos > buf_size)
 256                 return;
 257         for (i = 0; i < crtc->connector_count; i++) {
 258                 drmModeConnector *connector = crtc->cconfs[i].connector;
 259
 260                 pos += snprintf(&buf[pos], buf_size - pos,
 261                         "%s%s-%d[%d]%s", i ? ", " : "",
 262                         kmstest_connector_type_str(connector->connector_type),
 263                         connector->connector_type_id, connector->connector_id,
 264                         crtc->cconfs[i].connected ? "" : " (NC)");
 265                 if (pos > buf_size)
 266                         return;
 267         }
 268 }
 269
 270 static void setup_crtcs(drmModeRes *resources, struct connector_config *cconf,
 271                         int connector_count, struct crtc_config *crtcs,
 272                         int *crtc_count_ret, bool *config_valid_ret)
 273 {
 274         struct crtc_config *crtc;
 275         int crtc_count;
 276         bool config_valid;
 277         int i;
 278         int encoder_usage_count[resources->count_encoders];
 279
 280         i = 0;
 281         crtc_count = 0;
 282         crtc = crtcs;
 283         config_valid = true;
 284
 285         while (i < connector_count) {
 286                 drmModeCrtc *drm_crtc;
 287                 unsigned long encoder_mask;
 288                 int j;
 289
 290                 igt_assert(crtc_count < MAX_CRTCS);
 291
 292                 crtc->crtc_idx = cconf[i].crtc_idx;
 293                 drm_crtc = drmModeGetCrtc(drm_fd,
 294                                           resources->crtcs[crtc->crtc_idx]);
 295                 crtc->crtc_id = drm_crtc->crtc_id;
 296                 drmModeFreeCrtc(drm_crtc);
 297                 crtc->pipe_id = kmstest_get_pipe_from_crtc_id(drm_fd,
 298                                                               crtc->crtc_id);
 299
 300                 crtc->connector_count = 1;
 301                 for (j = i + 1; j < connector_count; j++)
 302                         if (cconf[j].crtc_idx == crtc->crtc_idx)
 303                                 crtc->connector_count++;
 304
 305                 crtc->cconfs = malloc(sizeof(*crtc->cconfs) *
 306                                       crtc->connector_count);
 307                 assert(crtc->cconfs);
 308
 309                 encoder_mask = 0;
 310                 for (j = 0; j < crtc->connector_count; j++) {
 311                         drmModeConnector *connector;
 312                         drmModeEncoder *encoder;
 313
 314                         crtc->cconfs[j] = cconf[i + j];
 315                         connector = cconf[i + j].connector;
 316
 317                         /* Intel connectors have only a single encoder */
 318                         igt_assert(connector->count_encoders == 1);
 319                         encoder = drmModeGetEncoder(drm_fd,
 320                                                     connector->encoders[0]);
 321                         assert(encoder);
 322
 323                         config_valid &= !!(encoder->possible_crtcs &
 324                                           (1 << crtc->crtc_idx));
 325
 326                         encoder_mask |= 1 << get_encoder_idx(resources,
 327                                                              encoder);
 328                         config_valid &= !(encoder_mask &
 329                                           ~encoder->possible_clones);
 330
 331                         drmModeFreeEncoder(encoder);
 332                 }
 333                 get_mode_for_crtc(crtc, &crtc->mode);
 334                 create_fb_for_crtc(crtc, &crtc->fb_info);
 335
 336                 i += crtc->connector_count;
 337                 crtc_count++;
 338                 crtc++;
 339         }
 340
 341         memset(encoder_usage_count, 0, sizeof(encoder_usage_count));
 342         for (i = 0; i < connector_count; i++) {
 343                 drmModeConnector *connector = cconf[i].connector;
 344                 drmModeEncoder *encoder;
 345
 346                 igt_assert(connector->count_encoders == 1);
 347                 encoder = drmModeGetEncoder(drm_fd, connector->encoders[0]);
 348                 encoder_usage_count[get_encoder_idx(resources, encoder)]++;
 349                 drmModeFreeEncoder(encoder);
 350         }
 351         for (i = 0; i < resources->count_encoders; i++)
 352                 if (encoder_usage_count[i] > 1)
 353                         config_valid = false;
 354
 355         *crtc_count_ret = crtc_count;
 356         *config_valid_ret = config_valid;
 357 }
 358
 359 static void cleanup_crtcs(struct crtc_config *crtcs, int crtc_count)
 360 {
 361         int i;
 362
 363         for (i = 0; i < crtc_count; i++) {
 364                 free(crtcs[i].cconfs);
 365         }
 366 }
 367
 368 static uint32_t *get_connector_ids(struct crtc_config *crtc)
 369 {
 370         uint32_t *ids;
 371         int i;
 372
 373         ids = malloc(sizeof(*ids) * crtc->connector_count);
 374         assert(ids);
 375         for (i = 0; i < crtc->connector_count; i++)
 376                 ids[i] = crtc->cconfs[i].connector->connector_id;
 377
 378         return ids;
 379 }
 380
 381 static void test_crtc_config(const struct test_config *tconf,
 382                              struct crtc_config *crtcs, int crtc_count)
 383 {
 384         char str_buf[MAX_CRTCS][1024];
 385         const char *crtc_strs[MAX_CRTCS];
 386         struct crtc_config *crtc;
 387         static int test_id;
 388         bool config_failed = false;
 389         bool connector_connected = false;
 390         int ret = 0;
 391         int i;
 392
 393         test_id++;
 394
 395         if (filter_test_id && filter_test_id != test_id)
 396                 return;
 397
 398         printf("  Test id#%d CRTC count %d\n", test_id, crtc_count);
 399
 400         for (i = 0; i < crtc_count; i++) {
 401                 get_crtc_config_str(&crtcs[i], str_buf[i], sizeof(str_buf[i]));
 402                 crtc_strs[i] = &str_buf[i][0];
 403         }
 404
 405         if (dry_run) {
 406                 for (i = 0; i < crtc_count; i++)
 407                         printf("    %s\n", crtc_strs[i]);
 408                 return;
 409         }
 410
 411         for (i = 0; i < crtc_count; i++) {
 412                 uint32_t *ids;
 413                 int j;
 414
 415                 crtc = &crtcs[i];
 416
 417                 printf("    %s\n", crtc_strs[i]);
 418
 419                 create_fb_for_crtc(crtc, &crtc->fb_info);
 420                 paint_fb(&crtc->fb_info, tconf->name, crtc_strs, crtc_count, i);
 421
 422                 ids = get_connector_ids(crtc);
 423                 ret = drmModeSetCrtc(drm_fd, crtc->crtc_id,
 424                                      crtc->fb_info.fb_id, 0, 0, ids,
 425                                      crtc->connector_count, &crtc->mode);
 426                 free(ids);
 427
 428                 if (ret < 0) {
 429                         igt_assert(errno == EINVAL);
 430                         config_failed = true;
 431                 }
 432
 433                 for (j = 0; j < crtc->connector_count; j++)
 434                         connector_connected |= crtc->cconfs[j].connected;
 435         }
 436
 437         igt_assert(config_failed == !!(tconf->flags & TEST_INVALID));
 438
 439         if (ret == 0 && connector_connected && !(tconf->flags & TEST_INVALID))
 440                 sleep(5);
 441
 442         for (i = 0; i < crtc_count; i++) {
 443                 if (crtcs[i].fb_info.fb_id) {
 444                         drmModeSetCrtc(drm_fd, crtcs[i].crtc_id, 0, 0, 0, NULL,
 445                                         0, NULL);
 446                         drmModeRmFB(drm_fd, crtcs[i].fb_info.fb_id);
 447                         crtcs[i].fb_info.fb_id = 0;
 448                 }
 449         }
 450
 451         return;
 452 }
 453
 454 static void test_one_combination(const struct test_config *tconf,
 455                                  struct connector_config *cconfs,
 456                                  int connector_count)
 457 {
 458         struct crtc_config crtcs[MAX_CRTCS];
 459         int crtc_count;
 460         bool config_valid;
 461
 462         setup_crtcs(tconf->resources, cconfs, connector_count, crtcs,
 463                     &crtc_count, &config_valid);
 464
 465         if (config_valid == !(tconf->flags & TEST_INVALID))
 466                 test_crtc_config(tconf, crtcs, crtc_count);
 467
 468         cleanup_crtcs(crtcs, crtc_count);
 469 }
 470
 471 static int assign_crtc_to_connectors(const struct test_config *tconf,
 472                                      int *crtc_idxs, int connector_count,
 473                                      struct connector_config *cconfs)
 474 {
 475         unsigned long crtc_idx_mask;
 476         int i;
 477
 478         crtc_idx_mask = 0;
 479         for (i = 0; i < connector_count; i++) {
 480                 int crtc_idx = crtc_idxs[i];
 481
 482                 if ((tconf->flags & TEST_SINGLE_CRTC_CLONE) &&
 483                     crtc_idx_mask & ~(1 << crtc_idx))
 484                         return -1;
 485
 486                 if ((tconf->flags & TEST_EXCLUSIVE_CRTC_CLONE) &&
 487                     crtc_idx_mask & (1 << crtc_idx))
 488                         return -1;
 489
 490                 crtc_idx_mask |= 1 << crtc_idx;
 491
 492                 cconfs[i].crtc_idx = crtc_idx;
 493         }
 494
 495         return 0;
 496 }
 497
 498 static int get_one_connector(drmModeRes *resources, int connector_id,
 499                              struct connector_config *cconf)
 500 {
 501         drmModeConnector *connector;
 502         drmModeModeInfo mode;
 503
 504         connector = drmModeGetConnector(drm_fd, connector_id);
 505         assert(connector);
 506         cconf->connector = connector;
 507
 508         cconf->connected = connector->connection == DRM_MODE_CONNECTED;
 509
 510         /*
 511          * For DP/eDP we need a connected sink, since mode setting depends
 512          * on successful link training and retrieved DPCD parameters.
 513          */
 514         switch (connector->connector_type) {
 515         case DRM_MODE_CONNECTOR_DisplayPort:
 516         case DRM_MODE_CONNECTOR_eDP:
 517                 if (!cconf->connected) {
 518                         drmModeFreeConnector(connector);
 519                         return -1;
 520                 }
 521         }
 522
 523         if (cconf->connected) {
 524                 if (kmstest_get_connector_default_mode(drm_fd, connector,
 525                                                         &mode) < 0)
 526                         mode = mode_640_480;
 527         } else {
 528                 mode = mode_640_480;
 529         }
 530
 531         cconf->default_mode = mode;
 532
 533         return 0;
 534 }
 535
 536 static int get_connectors(drmModeRes *resources, int *connector_idxs,
 537                           int connector_count, struct connector_config *cconfs)
 538 {
 539         int i;
 540
 541         for (i = 0; i < connector_count; i++) {
 542                 int connector_idx;
 543                 int connector_id;
 544
 545                 connector_idx = connector_idxs[i];
 546                 assert(connector_idx < resources->count_connectors);
 547                 connector_id = resources->connectors[connector_idx];
 548
 549                 if (get_one_connector(resources, connector_id, &cconfs[i]) < 0)
 550                         goto err;
 551
 552         }
 553
 554         return 0;
 555
 556 err:
 557         while (i--)
 558                 drmModeFreeConnector(cconfs[i].connector);
 559
 560         return -1;
 561 }
 562
 563 static void free_connectors(struct connector_config *cconfs,
 564                             int connector_count)
 565 {
 566         int i;
 567
 568         for (i = 0; i < connector_count; i++)
 569                 drmModeFreeConnector(cconfs[i].connector);
 570 }
 571
 572 struct combination {
 573         int elems[MAX_COMBINATION_ELEMS];
 574 };
 575
 576 struct combination_set {
 577         int count;
 578         struct combination items[MAX_COMBINATION_COUNT];
 579 };
 580
 581 /*
 582  * Get all possible selection of k elements from n elements with or without
 583  * repetitions.
 584  */
 585 static void iterate_combinations(int n, int k, bool allow_repetitions,
 586                                  int depth, int base, struct combination *comb,
 587                                  struct combination_set *set)
 588 {
 589         int v;
 590
 591         if (!k) {
 592                 assert(set->count < ARRAY_SIZE(set->items));
 593                 set->items[set->count++] = *comb;
 594                 return;
 595         }
 596
 597         for (v = base; v < n; v++) {
 598                 comb->elems[depth] = v;
 599                 iterate_combinations(n, k - 1, allow_repetitions,
 600                                      depth + 1, allow_repetitions ? 0 : v + 1,
 601                                      comb, set);
 602         }
 603
 604 }
 605
 606 static void get_combinations(int n, int k, bool allow_repetitions,
 607                              struct combination_set *set)
 608 {
 609         struct combination comb;
 610
 611         assert(k <= ARRAY_SIZE(set->items[0].elems));
 612         set->count = 0;
 613         iterate_combinations(n, k, allow_repetitions, 0, 0, &comb, set);
 614 }
 615
 616 static void test_combinations(const struct test_config *tconf,
 617                               int connector_count)
 618 {
 619         struct combination_set connector_combs;
 620         struct combination_set crtc_combs;
 621         struct connector_config *cconfs;
 622         int i;
 623
 624         get_combinations(tconf->resources->count_connectors, connector_count,
 625                          false, &connector_combs);
 626         get_combinations(tconf->resources->count_crtcs, connector_count,
 627                          true, &crtc_combs);
 628
 629         printf("Testing: %s %d connector combinations\n", tconf->name,
 630                 connector_count);
 631         for (i = 0; i < connector_combs.count; i++) {
 632                 int *connector_idxs;
 633                 int ret;
 634                 int j;
 635
 636                 cconfs = malloc(sizeof(*cconfs) * connector_count);
 637                 assert(cconfs);
 638
 639                 connector_idxs = &connector_combs.items[i].elems[0];
 640                 ret = get_connectors(tconf->resources, connector_idxs,
 641                                      connector_count, cconfs);
 642                 if (ret < 0)
 643                         goto free_cconfs;
 644
 645                 for (j = 0; j < crtc_combs.count; j++) {
 646                         int *crtc_idxs = &crtc_combs.items[j].elems[0];
 647                         ret = assign_crtc_to_connectors(tconf, crtc_idxs,
 648                                                         connector_count,
 649                                                         cconfs);
 650                         if (ret < 0)
 651                                 continue;
 652
 653                         test_one_combination(tconf, cconfs, connector_count);
 654                 }
 655
 656                 free_connectors(cconfs, connector_count);
 657 free_cconfs:
 658                 free(cconfs);
 659         }
 660 }
 661
 662 static void run_test(const struct test_config *tconf)
 663 {
 664         int connector_num;
 665
 666         connector_num = tconf->flags & TEST_CLONE ? 2 : 1;
 667         for (; connector_num <= tconf->resources->count_crtcs; connector_num++)
 668                 test_combinations(tconf, connector_num);
 669 }
 670
 671 static int opt_handler(int opt, int opt_index)
 672 {
 673         switch (opt) {
 674         case 'd':
 675                 dry_run = true;
 676                 break;
 677         case 't':
 678                 filter_test_id = atoi(optarg);
 679                 break;
 680         default:
 681                 assert(0);
 682         }
 683
 684         return 0;
 685 }
 686
 687 int main(int argc, char **argv)
 688 {
 689         const struct {
 690                 enum test_flags flags;
 691                 const char *name;
 692         } tests[] = {
 693                 { TEST_INVALID | TEST_CLONE | TEST_SINGLE_CRTC_CLONE,
 694                                         "invalid-clone-single-crtc" },
 695                 { TEST_INVALID | TEST_CLONE | TEST_EXCLUSIVE_CRTC_CLONE,
 696                                         "invalid-clone-exclusive-crtc" },
 697                 { TEST_CLONE | TEST_EXCLUSIVE_CRTC_CLONE,
 698                                         "clone-exclusive-crtc" },
 699         };
 700         const char *help_str =
 701                "  -d\t\tDon't run any test, only print what would be done. (still needs DRM access)\n"
 702                "  -t <test id>\tRun only the test with this id.";
 703         int i;
 704         int ret;
 705
 706         ret = igt_subtest_init_parse_opts(argc, argv, "dt:", NULL, help_str,
 707                                           opt_handler);
 708         if (ret < 0)
 709                 return ret == -1 ? 0 : ret;
 710
 711         igt_skip_on_simulation();
 712
 713         if (dry_run && filter_test_id) {
 714                 fprintf(stderr, "only one of -d and -t is accepted\n");
 715                 exit(1);
 716         }
 717
 718         igt_fixture {
 719                 drm_fd = drm_open_any();
 720                 if (!dry_run)
 721                         igt_set_vt_graphics_mode();
 722
 723                 drm_resources = drmModeGetResources(drm_fd);
 724                 assert(drm_resources);
 725         }
 726
 727         for (i = 0; i < ARRAY_SIZE(tests); i++) {
 728                 igt_subtest(tests[i].name) {
 729                         struct test_config tconf = {
 730                                 .flags          = tests[i].flags,
 731                                 .name           = tests[i].name,
 732                                 .resources      = drm_resources,
 733                         };
 734                         run_test(&tconf);
 735                 }
 736         }
 737
 738         igt_fixture {
 739                 drmModeFreeResources(drm_resources);
 740
 741                 close(drm_fd);
 742         }
 743
 744         igt_exit();
 745 }