tests/kms_fbc_crc.c

   1 /*
   2  * Copyright © 2013 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 <errno.h>
  26 #include <stdbool.h>
  27 #include <stdio.h>
  28 #include <string.h>
  29
  30 #include "drm_fourcc.h"
  31
  32 #include "drmtest.h"
  33 #include "igt_debugfs.h"
  34 #include "igt_kms.h"
  35 #include "intel_batchbuffer.h"
  36
  37 enum test_mode {
  38         TEST_PAGE_FLIP,
  39         TEST_MMAP_CPU,
  40         TEST_MMAP_GTT,
  41         TEST_BLT,
  42         TEST_RENDER,
  43         TEST_CONTEXT,
  44         TEST_PAGE_FLIP_AND_MMAP_CPU,
  45         TEST_PAGE_FLIP_AND_MMAP_GTT,
  46         TEST_PAGE_FLIP_AND_BLT,
  47         TEST_PAGE_FLIP_AND_RENDER,
  48         TEST_PAGE_FLIP_AND_CONTEXT,
  49 };
  50
  51 typedef struct {
  52         struct kmstest_connector_config config;
  53         drmModeModeInfo mode;
  54         struct kmstest_fb fb[2];
  55 } connector_t;
  56
  57 typedef struct {
  58         int drm_fd;
  59         drmModeRes *resources;
  60         igt_crc_t ref_crc[2];
  61         igt_pipe_crc_t **pipe_crc;
  62         drm_intel_bufmgr *bufmgr;
  63         drm_intel_context *ctx[2];
  64         uint32_t devid;
  65         uint32_t handle[2];
  66         uint32_t crtc_id;
  67         uint32_t crtc_idx;
  68         uint32_t fb_id[2];
  69 } data_t;
  70
  71 static const char *test_mode_str(enum test_mode mode)
  72 {
  73         static const char * const test_modes[] = {
  74                 [TEST_PAGE_FLIP] = "page_flip",
  75                 [TEST_MMAP_CPU] = "mmap_cpu",
  76                 [TEST_MMAP_GTT] = "mmap_gtt",
  77                 [TEST_BLT] = "blt",
  78                 [TEST_RENDER] = "render",
  79                 [TEST_CONTEXT] = "context",
  80                 [TEST_PAGE_FLIP_AND_MMAP_CPU] = "page_flip_and_mmap_cpu",
  81                 [TEST_PAGE_FLIP_AND_MMAP_GTT] = "page_flip_and_mmap_gtt",
  82                 [TEST_PAGE_FLIP_AND_BLT] = "page_flip_and_blt",
  83                 [TEST_PAGE_FLIP_AND_RENDER] = "page_flip_and_render",
  84                 [TEST_PAGE_FLIP_AND_CONTEXT] = "page_flip_and_context",
  85         };
  86
  87         return test_modes[mode];
  88 }
  89
  90 static uint32_t create_fb(data_t *data,
  91                           int w, int h,
  92                           double r, double g, double b,
  93                           struct kmstest_fb *fb)
  94 {
  95         uint32_t fb_id;
  96         cairo_t *cr;
  97
  98         fb_id = kmstest_create_fb2(data->drm_fd, w, h,
  99                                    DRM_FORMAT_XRGB8888, true, fb);
 100         igt_assert(fb_id);
 101
 102         cr = kmstest_get_cairo_ctx(data->drm_fd, fb);
 103         kmstest_paint_color(cr, 0, 0, w, h, r, g, b);
 104         igt_assert(cairo_status(cr) == 0);
 105         cairo_destroy(cr);
 106
 107         return fb_id;
 108 }
 109
 110 static bool
 111 connector_set_mode(data_t *data, connector_t *connector,
 112                    drmModeModeInfo *mode, uint32_t fb_id)
 113 {
 114         struct kmstest_connector_config *config = &connector->config;
 115         int ret;
 116
 117 #if 0
 118         fprintf(stdout, "Using pipe %c, %dx%d\n", pipe_name(config->pipe),
 119                 mode->hdisplay, mode->vdisplay);
 120 #endif
 121
 122         ret = drmModeSetCrtc(data->drm_fd,
 123                              config->crtc->crtc_id,
 124                              fb_id,
 125                              0, 0, /* x, y */
 126                              &config->connector->connector_id,
 127                              1,
 128                              mode);
 129         igt_assert(ret == 0);
 130
 131         return 0;
 132 }
 133
 134 static void display_init(data_t *data)
 135 {
 136         data->resources = drmModeGetResources(data->drm_fd);
 137         igt_assert(data->resources);
 138
 139         data->pipe_crc = calloc(data->resources->count_crtcs, sizeof(data->pipe_crc[0]));
 140 }
 141
 142 static void display_fini(data_t *data)
 143 {
 144         free(data->pipe_crc);
 145 }
 146
 147 static void fill_blt(data_t *data, uint32_t handle, unsigned char color)
 148 {
 149         drm_intel_bo *dst = gem_handle_to_libdrm_bo(data->bufmgr,
 150                                                     data->drm_fd,
 151                                                     "", handle);
 152         struct intel_batchbuffer *batch;
 153
 154         batch = intel_batchbuffer_alloc(data->bufmgr, data->devid);
 155         igt_assert(batch);
 156
 157         BEGIN_BATCH(5);
 158         OUT_BATCH(COLOR_BLT_CMD);
 159         OUT_BATCH((1 << 24) | (0xf0 << 16) | 0);
 160         OUT_BATCH(1 << 16 | 4);
 161         OUT_RELOC(dst, I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER, 0);
 162         OUT_BATCH(color);
 163         ADVANCE_BATCH();
 164
 165         intel_batchbuffer_flush(batch);
 166         intel_batchbuffer_free(batch);
 167
 168         gem_bo_busy(data->drm_fd, handle);
 169 }
 170
 171 static void scratch_buf_init(struct scratch_buf *buf, drm_intel_bo *bo)
 172 {
 173         buf->bo = bo;
 174         buf->stride = 4096;
 175         buf->tiling = I915_TILING_X;
 176         buf->size = 4096;
 177 }
 178
 179 static void exec_nop(data_t *data, uint32_t handle, drm_intel_context *context)
 180 {
 181         drm_intel_bo *dst;
 182         struct intel_batchbuffer *batch;
 183
 184         dst = gem_handle_to_libdrm_bo(data->bufmgr, data->drm_fd, "", handle);
 185         igt_assert(dst);
 186
 187         batch = intel_batchbuffer_alloc(data->bufmgr, data->devid);
 188         igt_assert(batch);
 189
 190         /* add the reloc to make sure the kernel will think we write to dst */
 191         BEGIN_BATCH(4);
 192         OUT_BATCH(MI_BATCH_BUFFER_END);
 193         OUT_BATCH(MI_NOOP);
 194         OUT_RELOC(dst, I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER, 0);
 195         OUT_BATCH(MI_NOOP);
 196         ADVANCE_BATCH();
 197
 198         intel_batchbuffer_flush_with_context(batch, context);
 199         intel_batchbuffer_free(batch);
 200 }
 201
 202 static void fill_render(data_t *data, uint32_t handle,
 203                         drm_intel_context *context, unsigned char color)
 204 {
 205         drm_intel_bo *src, *dst;
 206         struct intel_batchbuffer *batch;
 207         struct scratch_buf src_buf, dst_buf;
 208         const uint8_t buf[4] = { color, color, color, color };
 209         render_copyfunc_t rendercopy = get_render_copyfunc(data->devid);
 210
 211         igt_skip_on(!rendercopy);
 212
 213         dst = gem_handle_to_libdrm_bo(data->bufmgr, data->drm_fd, "", handle);
 214         igt_assert(dst);
 215
 216         src = drm_intel_bo_alloc(data->bufmgr, "", 4096, 4096);
 217         igt_assert(src);
 218
 219         gem_write(data->drm_fd, src->handle, 0, buf, 4);
 220
 221         scratch_buf_init(&src_buf, src);
 222         scratch_buf_init(&dst_buf, dst);
 223
 224         batch = intel_batchbuffer_alloc(data->bufmgr, data->devid);
 225         igt_assert(batch);
 226
 227         rendercopy(batch, context,
 228                    &src_buf, 0, 0, 1, 1,
 229                    &dst_buf, 0, 0);
 230
 231         intel_batchbuffer_free(batch);
 232
 233         gem_bo_busy(data->drm_fd, handle);
 234 }
 235
 236 static bool fbc_enabled(data_t *data)
 237 {
 238         FILE *status;
 239         char str[64] = {};
 240
 241         status = igt_debugfs_fopen("i915_fbc_status", "r");
 242         igt_assert(status);
 243
 244         fread(str, sizeof(str) - 1, 1, status);
 245         fclose(status);
 246         return strstr(str, "FBC enabled") != NULL;
 247 }
 248
 249 static void test_crc(data_t *data, enum test_mode mode)
 250 {
 251         igt_pipe_crc_t *pipe_crc = data->pipe_crc[data->crtc_idx];
 252         igt_crc_t *crcs = NULL;
 253         uint32_t handle = data->handle[0];
 254
 255         igt_assert(fbc_enabled(data));
 256
 257         if (mode >= TEST_PAGE_FLIP_AND_MMAP_CPU) {
 258                 handle = data->handle[1];
 259                 igt_assert(drmModePageFlip(data->drm_fd, data->crtc_id,
 260                                            data->fb_id[1], 0, NULL) == 0);
 261                 usleep(300000);
 262
 263                 igt_assert(fbc_enabled(data));
 264         }
 265
 266         switch (mode) {
 267                 void *ptr;
 268         case TEST_PAGE_FLIP:
 269                 igt_assert(drmModePageFlip(data->drm_fd, data->crtc_id,
 270                                            data->fb_id[1], 0, NULL) == 0);
 271                 break;
 272         case TEST_MMAP_CPU:
 273         case TEST_PAGE_FLIP_AND_MMAP_CPU:
 274                 ptr = gem_mmap__cpu(data->drm_fd, handle, 4096, PROT_WRITE);
 275                 gem_set_domain(data->drm_fd, handle, I915_GEM_DOMAIN_CPU, I915_GEM_DOMAIN_CPU);
 276                 memset(ptr, 0xff, 4);
 277                 munmap(ptr, 4096);
 278                 gem_sw_finish(data->drm_fd, handle);
 279                 break;
 280         case TEST_MMAP_GTT:
 281         case TEST_PAGE_FLIP_AND_MMAP_GTT:
 282                 ptr = gem_mmap__gtt(data->drm_fd, handle, 4096, PROT_WRITE);
 283                 gem_set_domain(data->drm_fd, handle, I915_GEM_DOMAIN_GTT, I915_GEM_DOMAIN_GTT);
 284                 memset(ptr, 0xff, 4);
 285                 munmap(ptr, 4096);
 286                 break;
 287         case TEST_BLT:
 288         case TEST_PAGE_FLIP_AND_BLT:
 289                 fill_blt(data, handle, 0xff);
 290                 break;
 291         case TEST_RENDER:
 292         case TEST_CONTEXT:
 293         case TEST_PAGE_FLIP_AND_RENDER:
 294         case TEST_PAGE_FLIP_AND_CONTEXT:
 295                 fill_render(data, handle,
 296                             (mode == TEST_CONTEXT || mode == TEST_PAGE_FLIP_AND_CONTEXT) ?
 297                             data->ctx[1] : NULL, 0xff);
 298                 break;
 299         }
 300
 301         /*
 302          * Make sure we're looking at new data (two vblanks
 303          * to leave some leeway for the kernel if we ever do
 304          * some kind of delayed FBC disable for GTT mmaps.
 305          */
 306         igt_wait_for_vblank(data->drm_fd, data->crtc_idx);
 307         igt_wait_for_vblank(data->drm_fd, data->crtc_idx);
 308
 309         igt_pipe_crc_start(pipe_crc);
 310         igt_pipe_crc_get_crcs(pipe_crc, 1, &crcs);
 311         igt_pipe_crc_stop(pipe_crc);
 312         igt_assert(!igt_crc_equal(&crcs[0], &data->ref_crc[0]));
 313         if (mode == TEST_PAGE_FLIP)
 314                 igt_assert(igt_crc_equal(&crcs[0], &data->ref_crc[1]));
 315         else
 316                 igt_assert(!igt_crc_equal(&crcs[0], &data->ref_crc[1]));
 317         free(crcs);
 318
 319         /*
 320          * Allow time for FBC to kick in again if it
 321          * got disabled during dirtyfb or page flip.
 322          */
 323         usleep(300000);
 324
 325         igt_assert(fbc_enabled(data));
 326
 327         igt_pipe_crc_start(pipe_crc);
 328         igt_pipe_crc_get_crcs(pipe_crc, 1, &crcs);
 329         igt_pipe_crc_stop(pipe_crc);
 330         igt_assert(!igt_crc_equal(&crcs[0], &data->ref_crc[0]));
 331         if (mode == TEST_PAGE_FLIP)
 332                 igt_assert(igt_crc_equal(&crcs[0], &data->ref_crc[1]));
 333         else
 334                 igt_assert(!igt_crc_equal(&crcs[0], &data->ref_crc[1]));
 335         free(crcs);
 336 }
 337
 338 static bool prepare_crtc(data_t *data, uint32_t connector_id, enum test_mode mode)
 339 {
 340         igt_pipe_crc_t *pipe_crc;
 341         igt_crc_t *crcs = NULL;
 342         connector_t connector;
 343         int ret;
 344
 345         ret = kmstest_get_connector_config(data->drm_fd,
 346                                            connector_id,
 347                                            1 << data->crtc_idx,
 348                                            &connector.config);
 349         if (ret)
 350                 return false;
 351
 352         igt_pipe_crc_free(data->pipe_crc[data->crtc_idx]);
 353         data->pipe_crc[data->crtc_idx] = NULL;
 354
 355         pipe_crc = igt_pipe_crc_new(data->crtc_idx,
 356                                     INTEL_PIPE_CRC_SOURCE_AUTO);
 357         if (!pipe_crc) {
 358                 printf("auto crc not supported on this connector with crtc %i\n",
 359                        data->crtc_idx);
 360                 return false;
 361         }
 362
 363         data->pipe_crc[data->crtc_idx] = pipe_crc;
 364
 365         data->fb_id[0] = create_fb(data,
 366                                    connector.config.default_mode.hdisplay,
 367                                    connector.config.default_mode.vdisplay,
 368                                    0.0, 0.0, 0.0, &connector.fb[0]);
 369         igt_assert(data->fb_id[0]);
 370
 371         data->fb_id[1] = create_fb(data,
 372                                    connector.config.default_mode.hdisplay,
 373                                    connector.config.default_mode.vdisplay,
 374                                    0.1, 0.1, 0.1, &connector.fb[1]);
 375         igt_assert(data->fb_id[1]);
 376
 377         data->handle[0] = connector.fb[0].gem_handle;
 378         data->handle[1] = connector.fb[1].gem_handle;
 379
 380         /* scanout = fb[1] */
 381         connector_set_mode(data, &connector, &connector.config.default_mode,
 382                            data->fb_id[1]);
 383         usleep(300000);
 384
 385         igt_skip_on(!fbc_enabled(data));
 386
 387         igt_wait_for_vblank(data->drm_fd, data->crtc_idx);
 388
 389         /* get reference crc for fb[1] */
 390         igt_pipe_crc_start(pipe_crc);
 391         igt_pipe_crc_get_crcs(pipe_crc, 1, &crcs);
 392         data->ref_crc[1] = crcs[0];
 393         igt_pipe_crc_stop(pipe_crc);
 394         free(crcs);
 395
 396         if (mode == TEST_CONTEXT || mode == TEST_PAGE_FLIP_AND_CONTEXT) {
 397                 data->ctx[0] = drm_intel_gem_context_create(data->bufmgr);
 398                 igt_require(data->ctx[0]);
 399                 data->ctx[1] = drm_intel_gem_context_create(data->bufmgr);
 400                 igt_require(data->ctx[1]);
 401
 402                 /*
 403                  * Disable FBC RT address for both contexts
 404                  * (by "rendering" to a non-scanout buffer).
 405                  */
 406                 exec_nop(data, data->handle[0], data->ctx[1]);
 407                 exec_nop(data, data->handle[0], data->ctx[0]);
 408                 exec_nop(data, data->handle[0], data->ctx[1]);
 409                 exec_nop(data, data->handle[0], data->ctx[0]);
 410         }
 411
 412         /* scanout = fb[0] */
 413         connector_set_mode(data, &connector, &connector.config.default_mode,
 414                            data->fb_id[0]);
 415         usleep(300000);
 416
 417         igt_skip_on(!fbc_enabled(data));
 418
 419         if (mode == TEST_CONTEXT || mode == TEST_PAGE_FLIP_AND_CONTEXT) {
 420                 /*
 421                  * make ctx[0] FBC RT address point to fb[0], ctx[1]
 422                  * FBC RT address is left as disabled.
 423                  */
 424                 exec_nop(data, connector.fb[0].gem_handle, data->ctx[0]);
 425         }
 426
 427         igt_wait_for_vblank(data->drm_fd, data->crtc_idx);
 428
 429         /* get reference crc for fb[0] */
 430         igt_pipe_crc_start(pipe_crc);
 431         igt_pipe_crc_get_crcs(pipe_crc, 1, &crcs);
 432         data->ref_crc[0] = crcs[0];
 433         igt_pipe_crc_stop(pipe_crc);
 434         free(crcs);
 435
 436         kmstest_free_connector_config(&connector.config);
 437
 438         return true;
 439 }
 440
 441 static void finish_crtc(data_t *data, enum test_mode mode)
 442 {
 443         igt_pipe_crc_free(data->pipe_crc[data->crtc_idx]);
 444         data->pipe_crc[data->crtc_idx] = NULL;
 445
 446         if (mode == TEST_CONTEXT || mode == TEST_PAGE_FLIP_AND_CONTEXT) {
 447                 drm_intel_gem_context_destroy(data->ctx[0]);
 448                 drm_intel_gem_context_destroy(data->ctx[1]);
 449         }
 450 }
 451
 452 static void run_test(data_t *data, enum test_mode mode)
 453 {
 454         int i, n;
 455
 456         for (i = 0; i < data->resources->count_connectors; i++) {
 457                 uint32_t connector_id = data->resources->connectors[i];
 458
 459                 for (n = 0; n < data->resources->count_crtcs; n++) {
 460                         data->crtc_idx = n;
 461                         data->crtc_id = data->resources->crtcs[n];
 462
 463                         if (!prepare_crtc(data, connector_id, mode))
 464                                 continue;
 465
 466                         fprintf(stdout, "Beginning %s on crtc %d, connector %d\n",
 467                                 igt_subtest_name(), data->crtc_id, connector_id);
 468                         test_crc(data, mode);
 469
 470                         fprintf(stdout, "\n%s on crtc %d, connector %d: PASSED\n\n",
 471                                 igt_subtest_name(), data->crtc_id, connector_id);
 472
 473                         finish_crtc(data, mode);
 474                 }
 475         }
 476 }
 477
 478 igt_main
 479 {
 480         data_t data = {};
 481         enum test_mode mode;
 482
 483         igt_skip_on_simulation();
 484
 485         igt_fixture {
 486                 char buf[64];
 487                 FILE *status;
 488
 489                 data.drm_fd = drm_open_any();
 490                 igt_set_vt_graphics_mode();
 491
 492                 data.devid = intel_get_drm_devid(data.drm_fd);
 493
 494                 igt_require_pipe_crc();
 495
 496                 status = igt_debugfs_fopen("i915_fbc_status", "r");
 497                 igt_require_f(status, "No i915_fbc_status found\n");
 498                 fread(buf, sizeof(buf), 1, status);
 499                 fclose(status);
 500                 buf[sizeof(buf) - 1] = '\0';
 501                 igt_require_f(!strstr(buf, "unsupported by this chipset") &&
 502                               !strstr(buf, "disabled per module param") &&
 503                               !strstr(buf, "disabled per chip default"),
 504                               "FBC not supported/enabled\n");
 505
 506                 data.bufmgr = drm_intel_bufmgr_gem_init(data.drm_fd, 4096);
 507                 igt_assert(data.bufmgr);
 508                 drm_intel_bufmgr_gem_enable_reuse(data.bufmgr);
 509
 510                 display_init(&data);
 511         }
 512
 513         for (mode = TEST_PAGE_FLIP; mode <= TEST_PAGE_FLIP_AND_CONTEXT; mode++) {
 514                 igt_subtest_f("%s", test_mode_str(mode)) {
 515                         run_test(&data, mode);
 516                 }
 517         }
 518
 519         igt_fixture {
 520                 drm_intel_bufmgr_destroy(data.bufmgr);
 521                 display_fini(&data);
 522         }
 523 }