drivers/gpu/drm/radeon/radeon_test.c

   1 /*
   2  * Copyright 2009 VMware, 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  * 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 shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20  * OTHER DEALINGS IN THE SOFTWARE.
  21  *
  22  * Authors: Michel Dänzer
  23  */
  24 #include <drm/drmP.h>
  25 #include <drm/radeon_drm.h>
  26 #include "radeon_reg.h"
  27 #include "radeon.h"
  28
  29 #define RADEON_TEST_COPY_BLIT 1
  30 #define RADEON_TEST_COPY_DMA  0
  31
  32
  33 /* Test BO GTT->VRAM and VRAM->GTT GPU copies across the whole GTT aperture */
  34 static void radeon_do_test_moves(struct radeon_device *rdev, int flag)
  35 {
  36         struct radeon_bo *vram_obj = NULL;
  37         struct radeon_bo **gtt_obj = NULL;
  38         uint64_t gtt_addr, vram_addr;
  39         unsigned n, size;
  40         int i, r, ring;
  41
  42         switch (flag) {
  43         case RADEON_TEST_COPY_DMA:
  44                 ring = radeon_copy_dma_ring_index(rdev);
  45                 break;
  46         case RADEON_TEST_COPY_BLIT:
  47                 ring = radeon_copy_blit_ring_index(rdev);
  48                 break;
  49         default:
  50                 DRM_ERROR("Unknown copy method\n");
  51                 return;
  52         }
  53
  54         size = 1024 * 1024;
  55
  56         /* Number of tests =
  57          * (Total GTT - IB pool - writeback page - ring buffers) / test size
  58          */
  59         n = rdev->mc.gtt_size - rdev->gart_pin_size;
  60         n /= size;
  61
  62         gtt_obj = kzalloc(n * sizeof(*gtt_obj), GFP_KERNEL);
  63         if (!gtt_obj) {
  64                 DRM_ERROR("Failed to allocate %d pointers\n", n);
  65                 r = 1;
  66                 goto out_cleanup;
  67         }
  68
  69         r = radeon_bo_create(rdev, size, PAGE_SIZE, true, RADEON_GEM_DOMAIN_VRAM,
  70                              0, NULL, NULL, &vram_obj);
  71         if (r) {
  72                 DRM_ERROR("Failed to create VRAM object\n");
  73                 goto out_cleanup;
  74         }
  75         r = radeon_bo_reserve(vram_obj, false);
  76         if (unlikely(r != 0))
  77                 goto out_unref;
  78         r = radeon_bo_pin(vram_obj, RADEON_GEM_DOMAIN_VRAM, &vram_addr);
  79         if (r) {
  80                 DRM_ERROR("Failed to pin VRAM object\n");
  81                 goto out_unres;
  82         }
  83         for (i = 0; i < n; i++) {
  84                 void *gtt_map, *vram_map;
  85                 void **gtt_start, **gtt_end;
  86                 void **vram_start, **vram_end;
  87                 struct radeon_fence *fence = NULL;
  88
  89                 r = radeon_bo_create(rdev, size, PAGE_SIZE, true,
  90                                      RADEON_GEM_DOMAIN_GTT, 0, NULL, NULL,
  91                                      gtt_obj + i);
  92                 if (r) {
  93                         DRM_ERROR("Failed to create GTT object %d\n", i);
  94                         goto out_lclean;
  95                 }
  96
  97                 r = radeon_bo_reserve(gtt_obj[i], false);
  98                 if (unlikely(r != 0))
  99                         goto out_lclean_unref;
 100                 r = radeon_bo_pin(gtt_obj[i], RADEON_GEM_DOMAIN_GTT, &gtt_addr);
 101                 if (r) {
 102                         DRM_ERROR("Failed to pin GTT object %d\n", i);
 103                         goto out_lclean_unres;
 104                 }
 105
 106                 r = radeon_bo_kmap(gtt_obj[i], &gtt_map);
 107                 if (r) {
 108                         DRM_ERROR("Failed to map GTT object %d\n", i);
 109                         goto out_lclean_unpin;
 110                 }
 111
 112                 for (gtt_start = gtt_map, gtt_end = gtt_map + size;
 113                      gtt_start < gtt_end;
 114                      gtt_start++)
 115                         *gtt_start = gtt_start;
 116
 117                 radeon_bo_kunmap(gtt_obj[i]);
 118
 119                 if (ring == R600_RING_TYPE_DMA_INDEX)
 120                         fence = radeon_copy_dma(rdev, gtt_addr, vram_addr,
 121                                                 size / RADEON_GPU_PAGE_SIZE,
 122                                                 vram_obj->tbo.resv);
 123                 else
 124                         fence = radeon_copy_blit(rdev, gtt_addr, vram_addr,
 125                                                  size / RADEON_GPU_PAGE_SIZE,
 126                                                  vram_obj->tbo.resv);
 127                 if (IS_ERR(fence)) {
 128                         DRM_ERROR("Failed GTT->VRAM copy %d\n", i);
 129                         r = PTR_ERR(fence);
 130                         goto out_lclean_unpin;
 131                 }
 132
 133                 r = radeon_fence_wait(fence, false);
 134                 if (r) {
 135                         DRM_ERROR("Failed to wait for GTT->VRAM fence %d\n", i);
 136                         goto out_lclean_unpin;
 137                 }
 138
 139                 radeon_fence_unref(&fence);
 140
 141                 r = radeon_bo_kmap(vram_obj, &vram_map);
 142                 if (r) {
 143                         DRM_ERROR("Failed to map VRAM object after copy %d\n", i);
 144                         goto out_lclean_unpin;
 145                 }
 146
 147                 for (gtt_start = gtt_map, gtt_end = gtt_map + size,
 148                      vram_start = vram_map, vram_end = vram_map + size;
 149                      vram_start < vram_end;
 150                      gtt_start++, vram_start++) {
 151                         if (*vram_start != gtt_start) {
 152                                 DRM_ERROR("Incorrect GTT->VRAM copy %d: Got 0x%p, "
 153                                           "expected 0x%p (GTT/VRAM offset "
 154                                           "0x%16llx/0x%16llx)\n",
 155                                           i, *vram_start, gtt_start,
 156                                           (unsigned long long)
 157                                           (gtt_addr - rdev->mc.gtt_start +
 158                                            (void*)gtt_start - gtt_map),
 159                                           (unsigned long long)
 160                                           (vram_addr - rdev->mc.vram_start +
 161                                            (void*)gtt_start - gtt_map));
 162                                 radeon_bo_kunmap(vram_obj);
 163                                 goto out_lclean_unpin;
 164                         }
 165                         *vram_start = vram_start;
 166                 }
 167
 168                 radeon_bo_kunmap(vram_obj);
 169
 170                 if (ring == R600_RING_TYPE_DMA_INDEX)
 171                         fence = radeon_copy_dma(rdev, vram_addr, gtt_addr,
 172                                                 size / RADEON_GPU_PAGE_SIZE,
 173                                                 vram_obj->tbo.resv);
 174                 else
 175                         fence = radeon_copy_blit(rdev, vram_addr, gtt_addr,
 176                                                  size / RADEON_GPU_PAGE_SIZE,
 177                                                  vram_obj->tbo.resv);
 178                 if (IS_ERR(fence)) {
 179                         DRM_ERROR("Failed VRAM->GTT copy %d\n", i);
 180                         r = PTR_ERR(fence);
 181                         goto out_lclean_unpin;
 182                 }
 183
 184                 r = radeon_fence_wait(fence, false);
 185                 if (r) {
 186                         DRM_ERROR("Failed to wait for VRAM->GTT fence %d\n", i);
 187                         goto out_lclean_unpin;
 188                 }
 189
 190                 radeon_fence_unref(&fence);
 191
 192                 r = radeon_bo_kmap(gtt_obj[i], &gtt_map);
 193                 if (r) {
 194                         DRM_ERROR("Failed to map GTT object after copy %d\n", i);
 195                         goto out_lclean_unpin;
 196                 }
 197
 198                 for (gtt_start = gtt_map, gtt_end = gtt_map + size,
 199                      vram_start = vram_map, vram_end = vram_map + size;
 200                      gtt_start < gtt_end;
 201                      gtt_start++, vram_start++) {
 202                         if (*gtt_start != vram_start) {
 203                                 DRM_ERROR("Incorrect VRAM->GTT copy %d: Got 0x%p, "
 204                                           "expected 0x%p (VRAM/GTT offset "
 205                                           "0x%16llx/0x%16llx)\n",
 206                                           i, *gtt_start, vram_start,
 207                                           (unsigned long long)
 208                                           (vram_addr - rdev->mc.vram_start +
 209                                            (void*)vram_start - vram_map),
 210                                           (unsigned long long)
 211                                           (gtt_addr - rdev->mc.gtt_start +
 212                                            (void*)vram_start - vram_map));
 213                                 radeon_bo_kunmap(gtt_obj[i]);
 214                                 goto out_lclean_unpin;
 215                         }
 216                 }
 217
 218                 radeon_bo_kunmap(gtt_obj[i]);
 219
 220                 DRM_INFO("Tested GTT->VRAM and VRAM->GTT copy for GTT offset 0x%llx\n",
 221                          gtt_addr - rdev->mc.gtt_start);
 222                 continue;
 223
 224 out_lclean_unpin:
 225                 radeon_bo_unpin(gtt_obj[i]);
 226 out_lclean_unres:
 227                 radeon_bo_unreserve(gtt_obj[i]);
 228 out_lclean_unref:
 229                 radeon_bo_unref(&gtt_obj[i]);
 230 out_lclean:
 231                 for (--i; i >= 0; --i) {
 232                         radeon_bo_unpin(gtt_obj[i]);
 233                         radeon_bo_unreserve(gtt_obj[i]);
 234                         radeon_bo_unref(&gtt_obj[i]);
 235                 }
 236                 if (fence && !IS_ERR(fence))
 237                         radeon_fence_unref(&fence);
 238                 break;
 239         }
 240
 241         radeon_bo_unpin(vram_obj);
 242 out_unres:
 243         radeon_bo_unreserve(vram_obj);
 244 out_unref:
 245         radeon_bo_unref(&vram_obj);
 246 out_cleanup:
 247         kfree(gtt_obj);
 248         if (r) {
 249                 pr_warn("Error while testing BO move\n");
 250         }
 251 }
 252
 253 void radeon_test_moves(struct radeon_device *rdev)
 254 {
 255         if (rdev->asic->copy.dma)
 256                 radeon_do_test_moves(rdev, RADEON_TEST_COPY_DMA);
 257         if (rdev->asic->copy.blit)
 258                 radeon_do_test_moves(rdev, RADEON_TEST_COPY_BLIT);
 259 }
 260
 261 static int radeon_test_create_and_emit_fence(struct radeon_device *rdev,
 262                                              struct radeon_ring *ring,
 263                                              struct radeon_fence **fence)
 264 {
 265         uint32_t handle = ring->idx ^ 0xdeafbeef;
 266         int r;
 267
 268         if (ring->idx == R600_RING_TYPE_UVD_INDEX) {
 269                 r = radeon_uvd_get_create_msg(rdev, ring->idx, handle, NULL);
 270                 if (r) {
 271                         DRM_ERROR("Failed to get dummy create msg\n");
 272                         return r;
 273                 }
 274
 275                 r = radeon_uvd_get_destroy_msg(rdev, ring->idx, handle, fence);
 276                 if (r) {
 277                         DRM_ERROR("Failed to get dummy destroy msg\n");
 278                         return r;
 279                 }
 280
 281         } else if (ring->idx == TN_RING_TYPE_VCE1_INDEX ||
 282                    ring->idx == TN_RING_TYPE_VCE2_INDEX) {
 283                 r = radeon_vce_get_create_msg(rdev, ring->idx, handle, NULL);
 284                 if (r) {
 285                         DRM_ERROR("Failed to get dummy create msg\n");
 286                         return r;
 287                 }
 288
 289                 r = radeon_vce_get_destroy_msg(rdev, ring->idx, handle, fence);
 290                 if (r) {
 291                         DRM_ERROR("Failed to get dummy destroy msg\n");
 292                         return r;
 293                 }
 294
 295         } else {
 296                 r = radeon_ring_lock(rdev, ring, 64);
 297                 if (r) {
 298                         DRM_ERROR("Failed to lock ring A %d\n", ring->idx);
 299                         return r;
 300                 }
 301                 r = radeon_fence_emit(rdev, fence, ring->idx);
 302                 if (r) {
 303                         DRM_ERROR("Failed to emit fence\n");
 304                         radeon_ring_unlock_undo(rdev, ring);
 305                         return r;
 306                 }
 307                 radeon_ring_unlock_commit(rdev, ring, false);
 308         }
 309         return 0;
 310 }
 311
 312 void radeon_test_ring_sync(struct radeon_device *rdev,
 313                            struct radeon_ring *ringA,
 314                            struct radeon_ring *ringB)
 315 {
 316         struct radeon_fence *fence1 = NULL, *fence2 = NULL;
 317         struct radeon_semaphore *semaphore = NULL;
 318         int r;
 319
 320         r = radeon_semaphore_create(rdev, &semaphore);
 321         if (r) {
 322                 DRM_ERROR("Failed to create semaphore\n");
 323                 goto out_cleanup;
 324         }
 325
 326         r = radeon_ring_lock(rdev, ringA, 64);
 327         if (r) {
 328                 DRM_ERROR("Failed to lock ring A %d\n", ringA->idx);
 329                 goto out_cleanup;
 330         }
 331         radeon_semaphore_emit_wait(rdev, ringA->idx, semaphore);
 332         radeon_ring_unlock_commit(rdev, ringA, false);
 333
 334         r = radeon_test_create_and_emit_fence(rdev, ringA, &fence1);
 335         if (r)
 336                 goto out_cleanup;
 337
 338         r = radeon_ring_lock(rdev, ringA, 64);
 339         if (r) {
 340                 DRM_ERROR("Failed to lock ring A %d\n", ringA->idx);
 341                 goto out_cleanup;
 342         }
 343         radeon_semaphore_emit_wait(rdev, ringA->idx, semaphore);
 344         radeon_ring_unlock_commit(rdev, ringA, false);
 345
 346         r = radeon_test_create_and_emit_fence(rdev, ringA, &fence2);
 347         if (r)
 348                 goto out_cleanup;
 349
 350         mdelay(1000);
 351
 352         if (radeon_fence_signaled(fence1)) {
 353                 DRM_ERROR("Fence 1 signaled without waiting for semaphore.\n");
 354                 goto out_cleanup;
 355         }
 356
 357         r = radeon_ring_lock(rdev, ringB, 64);
 358         if (r) {
 359                 DRM_ERROR("Failed to lock ring B %p\n", ringB);
 360                 goto out_cleanup;
 361         }
 362         radeon_semaphore_emit_signal(rdev, ringB->idx, semaphore);
 363         radeon_ring_unlock_commit(rdev, ringB, false);
 364
 365         r = radeon_fence_wait(fence1, false);
 366         if (r) {
 367                 DRM_ERROR("Failed to wait for sync fence 1\n");
 368                 goto out_cleanup;
 369         }
 370
 371         mdelay(1000);
 372
 373         if (radeon_fence_signaled(fence2)) {
 374                 DRM_ERROR("Fence 2 signaled without waiting for semaphore.\n");
 375                 goto out_cleanup;
 376         }
 377
 378         r = radeon_ring_lock(rdev, ringB, 64);
 379         if (r) {
 380                 DRM_ERROR("Failed to lock ring B %p\n", ringB);
 381                 goto out_cleanup;
 382         }
 383         radeon_semaphore_emit_signal(rdev, ringB->idx, semaphore);
 384         radeon_ring_unlock_commit(rdev, ringB, false);
 385
 386         r = radeon_fence_wait(fence2, false);
 387         if (r) {
 388                 DRM_ERROR("Failed to wait for sync fence 1\n");
 389                 goto out_cleanup;
 390         }
 391
 392 out_cleanup:
 393         radeon_semaphore_free(rdev, &semaphore, NULL);
 394
 395         if (fence1)
 396                 radeon_fence_unref(&fence1);
 397
 398         if (fence2)
 399                 radeon_fence_unref(&fence2);
 400
 401         if (r)
 402                 pr_warn("Error while testing ring sync (%d)\n", r);
 403 }
 404
 405 static void radeon_test_ring_sync2(struct radeon_device *rdev,
 406                             struct radeon_ring *ringA,
 407                             struct radeon_ring *ringB,
 408                             struct radeon_ring *ringC)
 409 {
 410         struct radeon_fence *fenceA = NULL, *fenceB = NULL;
 411         struct radeon_semaphore *semaphore = NULL;
 412         bool sigA, sigB;
 413         int i, r;
 414
 415         r = radeon_semaphore_create(rdev, &semaphore);
 416         if (r) {
 417                 DRM_ERROR("Failed to create semaphore\n");
 418                 goto out_cleanup;
 419         }
 420
 421         r = radeon_ring_lock(rdev, ringA, 64);
 422         if (r) {
 423                 DRM_ERROR("Failed to lock ring A %d\n", ringA->idx);
 424                 goto out_cleanup;
 425         }
 426         radeon_semaphore_emit_wait(rdev, ringA->idx, semaphore);
 427         radeon_ring_unlock_commit(rdev, ringA, false);
 428
 429         r = radeon_test_create_and_emit_fence(rdev, ringA, &fenceA);
 430         if (r)
 431                 goto out_cleanup;
 432
 433         r = radeon_ring_lock(rdev, ringB, 64);
 434         if (r) {
 435                 DRM_ERROR("Failed to lock ring B %d\n", ringB->idx);
 436                 goto out_cleanup;
 437         }
 438         radeon_semaphore_emit_wait(rdev, ringB->idx, semaphore);
 439         radeon_ring_unlock_commit(rdev, ringB, false);
 440         r = radeon_test_create_and_emit_fence(rdev, ringB, &fenceB);
 441         if (r)
 442                 goto out_cleanup;
 443
 444         mdelay(1000);
 445
 446         if (radeon_fence_signaled(fenceA)) {
 447                 DRM_ERROR("Fence A signaled without waiting for semaphore.\n");
 448                 goto out_cleanup;
 449         }
 450         if (radeon_fence_signaled(fenceB)) {
 451                 DRM_ERROR("Fence B signaled without waiting for semaphore.\n");
 452                 goto out_cleanup;
 453         }
 454
 455         r = radeon_ring_lock(rdev, ringC, 64);
 456         if (r) {
 457                 DRM_ERROR("Failed to lock ring B %p\n", ringC);
 458                 goto out_cleanup;
 459         }
 460         radeon_semaphore_emit_signal(rdev, ringC->idx, semaphore);
 461         radeon_ring_unlock_commit(rdev, ringC, false);
 462
 463         for (i = 0; i < 30; ++i) {
 464                 mdelay(100);
 465                 sigA = radeon_fence_signaled(fenceA);
 466                 sigB = radeon_fence_signaled(fenceB);
 467                 if (sigA || sigB)
 468                         break;
 469         }
 470
 471         if (!sigA && !sigB) {
 472                 DRM_ERROR("Neither fence A nor B has been signaled\n");
 473                 goto out_cleanup;
 474         } else if (sigA && sigB) {
 475                 DRM_ERROR("Both fence A and B has been signaled\n");
 476                 goto out_cleanup;
 477         }
 478
 479         DRM_INFO("Fence %c was first signaled\n", sigA ? 'A' : 'B');
 480
 481         r = radeon_ring_lock(rdev, ringC, 64);
 482         if (r) {
 483                 DRM_ERROR("Failed to lock ring B %p\n", ringC);
 484                 goto out_cleanup;
 485         }
 486         radeon_semaphore_emit_signal(rdev, ringC->idx, semaphore);
 487         radeon_ring_unlock_commit(rdev, ringC, false);
 488
 489         mdelay(1000);
 490
 491         r = radeon_fence_wait(fenceA, false);
 492         if (r) {
 493                 DRM_ERROR("Failed to wait for sync fence A\n");
 494                 goto out_cleanup;
 495         }
 496         r = radeon_fence_wait(fenceB, false);
 497         if (r) {
 498                 DRM_ERROR("Failed to wait for sync fence B\n");
 499                 goto out_cleanup;
 500         }
 501
 502 out_cleanup:
 503         radeon_semaphore_free(rdev, &semaphore, NULL);
 504
 505         if (fenceA)
 506                 radeon_fence_unref(&fenceA);
 507
 508         if (fenceB)
 509                 radeon_fence_unref(&fenceB);
 510
 511         if (r)
 512                 pr_warn("Error while testing ring sync (%d)\n", r);
 513 }
 514
 515 static bool radeon_test_sync_possible(struct radeon_ring *ringA,
 516                                       struct radeon_ring *ringB)
 517 {
 518         if (ringA->idx == TN_RING_TYPE_VCE2_INDEX &&
 519             ringB->idx == TN_RING_TYPE_VCE1_INDEX)
 520                 return false;
 521
 522         return true;
 523 }
 524
 525 void radeon_test_syncing(struct radeon_device *rdev)
 526 {
 527         int i, j, k;
 528
 529         for (i = 1; i < RADEON_NUM_RINGS; ++i) {
 530                 struct radeon_ring *ringA = &rdev->ring[i];
 531                 if (!ringA->ready)
 532                         continue;
 533
 534                 for (j = 0; j < i; ++j) {
 535                         struct radeon_ring *ringB = &rdev->ring[j];
 536                         if (!ringB->ready)
 537                                 continue;
 538
 539                         if (!radeon_test_sync_possible(ringA, ringB))
 540                                 continue;
 541
 542                         DRM_INFO("Testing syncing between rings %d and %d...\n", i, j);
 543                         radeon_test_ring_sync(rdev, ringA, ringB);
 544
 545                         DRM_INFO("Testing syncing between rings %d and %d...\n", j, i);
 546                         radeon_test_ring_sync(rdev, ringB, ringA);
 547
 548                         for (k = 0; k < j; ++k) {
 549                                 struct radeon_ring *ringC = &rdev->ring[k];
 550                                 if (!ringC->ready)
 551                                         continue;
 552
 553                                 if (!radeon_test_sync_possible(ringA, ringC))
 554                                         continue;
 555
 556                                 if (!radeon_test_sync_possible(ringB, ringC))
 557                                         continue;
 558
 559                                 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", i, j, k);
 560                                 radeon_test_ring_sync2(rdev, ringA, ringB, ringC);
 561
 562                                 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", i, k, j);
 563                                 radeon_test_ring_sync2(rdev, ringA, ringC, ringB);
 564
 565                                 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", j, i, k);
 566                                 radeon_test_ring_sync2(rdev, ringB, ringA, ringC);
 567
 568                                 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", j, k, i);
 569                                 radeon_test_ring_sync2(rdev, ringB, ringC, ringA);
 570
 571                                 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", k, i, j);
 572                                 radeon_test_ring_sync2(rdev, ringC, ringA, ringB);
 573
 574                                 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", k, j, i);
 575                                 radeon_test_ring_sync2(rdev, ringC, ringB, ringA);
 576                         }
 577                 }
 578         }
 579 }