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 i, n, size;
  40         int 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 - RADEON_IB_POOL_SIZE*64*1024;
  60         for (i = 0; i < RADEON_NUM_RINGS; ++i)
  61                 n -= rdev->ring[i].ring_size;
  62         if (rdev->wb.wb_obj)
  63                 n -= RADEON_GPU_PAGE_SIZE;
  64         if (rdev->ih.ring_obj)
  65                 n -= rdev->ih.ring_size;
  66         n /= size;
  67
  68         gtt_obj = kzalloc(n * sizeof(*gtt_obj), GFP_KERNEL);
  69         if (!gtt_obj) {
  70                 DRM_ERROR("Failed to allocate %d pointers\n", n);
  71                 r = 1;
  72                 goto out_cleanup;
  73         }
  74
  75         r = radeon_bo_create(rdev, size, PAGE_SIZE, true, RADEON_GEM_DOMAIN_VRAM,
  76                              NULL, &vram_obj);
  77         if (r) {
  78                 DRM_ERROR("Failed to create VRAM object\n");
  79                 goto out_cleanup;
  80         }
  81         r = radeon_bo_reserve(vram_obj, false);
  82         if (unlikely(r != 0))
  83                 goto out_unref;
  84         r = radeon_bo_pin(vram_obj, RADEON_GEM_DOMAIN_VRAM, &vram_addr);
  85         if (r) {
  86                 DRM_ERROR("Failed to pin VRAM object\n");
  87                 goto out_unres;
  88         }
  89         for (i = 0; i < n; i++) {
  90                 void *gtt_map, *vram_map;
  91                 void **gtt_start, **gtt_end;
  92                 void **vram_start, **vram_end;
  93                 struct radeon_fence *fence = NULL;
  94
  95                 r = radeon_bo_create(rdev, size, PAGE_SIZE, true,
  96                                      RADEON_GEM_DOMAIN_GTT, NULL, gtt_obj + i);
  97                 if (r) {
  98                         DRM_ERROR("Failed to create GTT object %d\n", i);
  99                         goto out_lclean;
 100                 }
 101
 102                 r = radeon_bo_reserve(gtt_obj[i], false);
 103                 if (unlikely(r != 0))
 104                         goto out_lclean_unref;
 105                 r = radeon_bo_pin(gtt_obj[i], RADEON_GEM_DOMAIN_GTT, &gtt_addr);
 106                 if (r) {
 107                         DRM_ERROR("Failed to pin GTT object %d\n", i);
 108                         goto out_lclean_unres;
 109                 }
 110
 111                 r = radeon_bo_kmap(gtt_obj[i], &gtt_map);
 112                 if (r) {
 113                         DRM_ERROR("Failed to map GTT object %d\n", i);
 114                         goto out_lclean_unpin;
 115                 }
 116
 117                 for (gtt_start = gtt_map, gtt_end = gtt_map + size;
 118                      gtt_start < gtt_end;
 119                      gtt_start++)
 120                         *gtt_start = gtt_start;
 121
 122                 radeon_bo_kunmap(gtt_obj[i]);
 123
 124                 if (ring == R600_RING_TYPE_DMA_INDEX)
 125                         r = radeon_copy_dma(rdev, gtt_addr, vram_addr, size / RADEON_GPU_PAGE_SIZE, &fence);
 126                 else
 127                         r = radeon_copy_blit(rdev, gtt_addr, vram_addr, size / RADEON_GPU_PAGE_SIZE, &fence);
 128                 if (r) {
 129                         DRM_ERROR("Failed GTT->VRAM copy %d\n", i);
 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                         r = radeon_copy_dma(rdev, vram_addr, gtt_addr, size / RADEON_GPU_PAGE_SIZE, &fence);
 172                 else
 173                         r = radeon_copy_blit(rdev, vram_addr, gtt_addr, size / RADEON_GPU_PAGE_SIZE, &fence);
 174                 if (r) {
 175                         DRM_ERROR("Failed VRAM->GTT copy %d\n", i);
 176                         goto out_lclean_unpin;
 177                 }
 178
 179                 r = radeon_fence_wait(fence, false);
 180                 if (r) {
 181                         DRM_ERROR("Failed to wait for VRAM->GTT fence %d\n", i);
 182                         goto out_lclean_unpin;
 183                 }
 184
 185                 radeon_fence_unref(&fence);
 186
 187                 r = radeon_bo_kmap(gtt_obj[i], &gtt_map);
 188                 if (r) {
 189                         DRM_ERROR("Failed to map GTT object after copy %d\n", i);
 190                         goto out_lclean_unpin;
 191                 }
 192
 193                 for (gtt_start = gtt_map, gtt_end = gtt_map + size,
 194                      vram_start = vram_map, vram_end = vram_map + size;
 195                      gtt_start < gtt_end;
 196                      gtt_start++, vram_start++) {
 197                         if (*gtt_start != vram_start) {
 198                                 DRM_ERROR("Incorrect VRAM->GTT copy %d: Got 0x%p, "
 199                                           "expected 0x%p (VRAM/GTT offset "
 200                                           "0x%16llx/0x%16llx)\n",
 201                                           i, *gtt_start, vram_start,
 202                                           (unsigned long long)
 203                                           (vram_addr - rdev->mc.vram_start +
 204                                            (void*)vram_start - vram_map),
 205                                           (unsigned long long)
 206                                           (gtt_addr - rdev->mc.gtt_start +
 207                                            (void*)vram_start - vram_map));
 208                                 radeon_bo_kunmap(gtt_obj[i]);
 209                                 goto out_lclean_unpin;
 210                         }
 211                 }
 212
 213                 radeon_bo_kunmap(gtt_obj[i]);
 214
 215                 DRM_INFO("Tested GTT->VRAM and VRAM->GTT copy for GTT offset 0x%llx\n",
 216                          gtt_addr - rdev->mc.gtt_start);
 217                 continue;
 218
 219 out_lclean_unpin:
 220                 radeon_bo_unpin(gtt_obj[i]);
 221 out_lclean_unres:
 222                 radeon_bo_unreserve(gtt_obj[i]);
 223 out_lclean_unref:
 224                 radeon_bo_unref(&gtt_obj[i]);
 225 out_lclean:
 226                 for (--i; i >= 0; --i) {
 227                         radeon_bo_unpin(gtt_obj[i]);
 228                         radeon_bo_unreserve(gtt_obj[i]);
 229                         radeon_bo_unref(&gtt_obj[i]);
 230                 }
 231                 if (fence)
 232                         radeon_fence_unref(&fence);
 233                 break;
 234         }
 235
 236         radeon_bo_unpin(vram_obj);
 237 out_unres:
 238         radeon_bo_unreserve(vram_obj);
 239 out_unref:
 240         radeon_bo_unref(&vram_obj);
 241 out_cleanup:
 242         kfree(gtt_obj);
 243         if (r) {
 244                 printk(KERN_WARNING "Error while testing BO move.\n");
 245         }
 246 }
 247
 248 void radeon_test_moves(struct radeon_device *rdev)
 249 {
 250         if (rdev->asic->copy.dma)
 251                 radeon_do_test_moves(rdev, RADEON_TEST_COPY_DMA);
 252         if (rdev->asic->copy.blit)
 253                 radeon_do_test_moves(rdev, RADEON_TEST_COPY_BLIT);
 254 }
 255
 256 static int radeon_test_create_and_emit_fence(struct radeon_device *rdev,
 257                                              struct radeon_ring *ring,
 258                                              struct radeon_fence **fence)
 259 {
 260         int r;
 261
 262         if (ring->idx == R600_RING_TYPE_UVD_INDEX) {
 263                 r = radeon_uvd_get_create_msg(rdev, ring->idx, 1, NULL);
 264                 if (r) {
 265                         DRM_ERROR("Failed to get dummy create msg\n");
 266                         return r;
 267                 }
 268
 269                 r = radeon_uvd_get_destroy_msg(rdev, ring->idx, 1, fence);
 270                 if (r) {
 271                         DRM_ERROR("Failed to get dummy destroy msg\n");
 272                         return r;
 273                 }
 274         } else {
 275                 r = radeon_ring_lock(rdev, ring, 64);
 276                 if (r) {
 277                         DRM_ERROR("Failed to lock ring A %d\n", ring->idx);
 278                         return r;
 279                 }
 280                 radeon_fence_emit(rdev, fence, ring->idx);
 281                 radeon_ring_unlock_commit(rdev, ring);
 282         }
 283         return 0;
 284 }
 285
 286 void radeon_test_ring_sync(struct radeon_device *rdev,
 287                            struct radeon_ring *ringA,
 288                            struct radeon_ring *ringB)
 289 {
 290         struct radeon_fence *fence1 = NULL, *fence2 = NULL;
 291         struct radeon_semaphore *semaphore = NULL;
 292         int r;
 293
 294         r = radeon_semaphore_create(rdev, &semaphore);
 295         if (r) {
 296                 DRM_ERROR("Failed to create semaphore\n");
 297                 goto out_cleanup;
 298         }
 299
 300         r = radeon_ring_lock(rdev, ringA, 64);
 301         if (r) {
 302                 DRM_ERROR("Failed to lock ring A %d\n", ringA->idx);
 303                 goto out_cleanup;
 304         }
 305         radeon_semaphore_emit_wait(rdev, ringA->idx, semaphore);
 306         radeon_ring_unlock_commit(rdev, ringA);
 307
 308         r = radeon_test_create_and_emit_fence(rdev, ringA, &fence1);
 309         if (r)
 310                 goto out_cleanup;
 311
 312         r = radeon_ring_lock(rdev, ringA, 64);
 313         if (r) {
 314                 DRM_ERROR("Failed to lock ring A %d\n", ringA->idx);
 315                 goto out_cleanup;
 316         }
 317         radeon_semaphore_emit_wait(rdev, ringA->idx, semaphore);
 318         radeon_ring_unlock_commit(rdev, ringA);
 319
 320         r = radeon_test_create_and_emit_fence(rdev, ringA, &fence2);
 321         if (r)
 322                 goto out_cleanup;
 323
 324         mdelay(1000);
 325
 326         if (radeon_fence_signaled(fence1)) {
 327                 DRM_ERROR("Fence 1 signaled without waiting for semaphore.\n");
 328                 goto out_cleanup;
 329         }
 330
 331         r = radeon_ring_lock(rdev, ringB, 64);
 332         if (r) {
 333                 DRM_ERROR("Failed to lock ring B %p\n", ringB);
 334                 goto out_cleanup;
 335         }
 336         radeon_semaphore_emit_signal(rdev, ringB->idx, semaphore);
 337         radeon_ring_unlock_commit(rdev, ringB);
 338
 339         r = radeon_fence_wait(fence1, false);
 340         if (r) {
 341                 DRM_ERROR("Failed to wait for sync fence 1\n");
 342                 goto out_cleanup;
 343         }
 344
 345         mdelay(1000);
 346
 347         if (radeon_fence_signaled(fence2)) {
 348                 DRM_ERROR("Fence 2 signaled without waiting for semaphore.\n");
 349                 goto out_cleanup;
 350         }
 351
 352         r = radeon_ring_lock(rdev, ringB, 64);
 353         if (r) {
 354                 DRM_ERROR("Failed to lock ring B %p\n", ringB);
 355                 goto out_cleanup;
 356         }
 357         radeon_semaphore_emit_signal(rdev, ringB->idx, semaphore);
 358         radeon_ring_unlock_commit(rdev, ringB);
 359
 360         r = radeon_fence_wait(fence2, false);
 361         if (r) {
 362                 DRM_ERROR("Failed to wait for sync fence 1\n");
 363                 goto out_cleanup;
 364         }
 365
 366 out_cleanup:
 367         radeon_semaphore_free(rdev, &semaphore, NULL);
 368
 369         if (fence1)
 370                 radeon_fence_unref(&fence1);
 371
 372         if (fence2)
 373                 radeon_fence_unref(&fence2);
 374
 375         if (r)
 376                 printk(KERN_WARNING "Error while testing ring sync (%d).\n", r);
 377 }
 378
 379 static void radeon_test_ring_sync2(struct radeon_device *rdev,
 380                             struct radeon_ring *ringA,
 381                             struct radeon_ring *ringB,
 382                             struct radeon_ring *ringC)
 383 {
 384         struct radeon_fence *fenceA = NULL, *fenceB = NULL;
 385         struct radeon_semaphore *semaphore = NULL;
 386         bool sigA, sigB;
 387         int i, r;
 388
 389         r = radeon_semaphore_create(rdev, &semaphore);
 390         if (r) {
 391                 DRM_ERROR("Failed to create semaphore\n");
 392                 goto out_cleanup;
 393         }
 394
 395         r = radeon_ring_lock(rdev, ringA, 64);
 396         if (r) {
 397                 DRM_ERROR("Failed to lock ring A %d\n", ringA->idx);
 398                 goto out_cleanup;
 399         }
 400         radeon_semaphore_emit_wait(rdev, ringA->idx, semaphore);
 401         radeon_ring_unlock_commit(rdev, ringA);
 402
 403         r = radeon_test_create_and_emit_fence(rdev, ringA, &fenceA);
 404         if (r)
 405                 goto out_cleanup;
 406
 407         r = radeon_ring_lock(rdev, ringB, 64);
 408         if (r) {
 409                 DRM_ERROR("Failed to lock ring B %d\n", ringB->idx);
 410                 goto out_cleanup;
 411         }
 412         radeon_semaphore_emit_wait(rdev, ringB->idx, semaphore);
 413         radeon_ring_unlock_commit(rdev, ringB);
 414         r = radeon_test_create_and_emit_fence(rdev, ringB, &fenceB);
 415         if (r)
 416                 goto out_cleanup;
 417
 418         mdelay(1000);
 419
 420         if (radeon_fence_signaled(fenceA)) {
 421                 DRM_ERROR("Fence A signaled without waiting for semaphore.\n");
 422                 goto out_cleanup;
 423         }
 424         if (radeon_fence_signaled(fenceB)) {
 425                 DRM_ERROR("Fence B signaled without waiting for semaphore.\n");
 426                 goto out_cleanup;
 427         }
 428
 429         r = radeon_ring_lock(rdev, ringC, 64);
 430         if (r) {
 431                 DRM_ERROR("Failed to lock ring B %p\n", ringC);
 432                 goto out_cleanup;
 433         }
 434         radeon_semaphore_emit_signal(rdev, ringC->idx, semaphore);
 435         radeon_ring_unlock_commit(rdev, ringC);
 436
 437         for (i = 0; i < 30; ++i) {
 438                 mdelay(100);
 439                 sigA = radeon_fence_signaled(fenceA);
 440                 sigB = radeon_fence_signaled(fenceB);
 441                 if (sigA || sigB)
 442                         break;
 443         }
 444
 445         if (!sigA && !sigB) {
 446                 DRM_ERROR("Neither fence A nor B has been signaled\n");
 447                 goto out_cleanup;
 448         } else if (sigA && sigB) {
 449                 DRM_ERROR("Both fence A and B has been signaled\n");
 450                 goto out_cleanup;
 451         }
 452
 453         DRM_INFO("Fence %c was first signaled\n", sigA ? 'A' : 'B');
 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);
 462
 463         mdelay(1000);
 464
 465         r = radeon_fence_wait(fenceA, false);
 466         if (r) {
 467                 DRM_ERROR("Failed to wait for sync fence A\n");
 468                 goto out_cleanup;
 469         }
 470         r = radeon_fence_wait(fenceB, false);
 471         if (r) {
 472                 DRM_ERROR("Failed to wait for sync fence B\n");
 473                 goto out_cleanup;
 474         }
 475
 476 out_cleanup:
 477         radeon_semaphore_free(rdev, &semaphore, NULL);
 478
 479         if (fenceA)
 480                 radeon_fence_unref(&fenceA);
 481
 482         if (fenceB)
 483                 radeon_fence_unref(&fenceB);
 484
 485         if (r)
 486                 printk(KERN_WARNING "Error while testing ring sync (%d).\n", r);
 487 }
 488
 489 void radeon_test_syncing(struct radeon_device *rdev)
 490 {
 491         int i, j, k;
 492
 493         for (i = 1; i < RADEON_NUM_RINGS; ++i) {
 494                 struct radeon_ring *ringA = &rdev->ring[i];
 495                 if (!ringA->ready)
 496                         continue;
 497
 498                 for (j = 0; j < i; ++j) {
 499                         struct radeon_ring *ringB = &rdev->ring[j];
 500                         if (!ringB->ready)
 501                                 continue;
 502
 503                         DRM_INFO("Testing syncing between rings %d and %d...\n", i, j);
 504                         radeon_test_ring_sync(rdev, ringA, ringB);
 505
 506                         DRM_INFO("Testing syncing between rings %d and %d...\n", j, i);
 507                         radeon_test_ring_sync(rdev, ringB, ringA);
 508
 509                         for (k = 0; k < j; ++k) {
 510                                 struct radeon_ring *ringC = &rdev->ring[k];
 511                                 if (!ringC->ready)
 512                                         continue;
 513
 514                                 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", i, j, k);
 515                                 radeon_test_ring_sync2(rdev, ringA, ringB, ringC);
 516
 517                                 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", i, k, j);
 518                                 radeon_test_ring_sync2(rdev, ringA, ringC, ringB);
 519
 520                                 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", j, i, k);
 521                                 radeon_test_ring_sync2(rdev, ringB, ringA, ringC);
 522
 523                                 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", j, k, i);
 524                                 radeon_test_ring_sync2(rdev, ringB, ringC, ringA);
 525
 526                                 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", k, i, j);
 527                                 radeon_test_ring_sync2(rdev, ringC, ringA, ringB);
 528
 529                                 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", k, j, i);
 530                                 radeon_test_ring_sync2(rdev, ringC, ringB, ringA);
 531                         }
 532                 }
 533         }
 534 }