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, &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, gtt_obj + i);
  91                 if (r) {
  92                         DRM_ERROR("Failed to create GTT object %d\n", i);
  93                         goto out_lclean;
  94                 }
  95
  96                 r = radeon_bo_reserve(gtt_obj[i], false);
  97                 if (unlikely(r != 0))
  98                         goto out_lclean_unref;
  99                 r = radeon_bo_pin(gtt_obj[i], RADEON_GEM_DOMAIN_GTT, &gtt_addr);
 100                 if (r) {
 101                         DRM_ERROR("Failed to pin GTT object %d\n", i);
 102                         goto out_lclean_unres;
 103                 }
 104
 105                 r = radeon_bo_kmap(gtt_obj[i], &gtt_map);
 106                 if (r) {
 107                         DRM_ERROR("Failed to map GTT object %d\n", i);
 108                         goto out_lclean_unpin;
 109                 }
 110
 111                 for (gtt_start = gtt_map, gtt_end = gtt_map + size;
 112                      gtt_start < gtt_end;
 113                      gtt_start++)
 114                         *gtt_start = gtt_start;
 115
 116                 radeon_bo_kunmap(gtt_obj[i]);
 117
 118                 if (ring == R600_RING_TYPE_DMA_INDEX)
 119                         r = radeon_copy_dma(rdev, gtt_addr, vram_addr, size / RADEON_GPU_PAGE_SIZE, &fence);
 120                 else
 121                         r = radeon_copy_blit(rdev, gtt_addr, vram_addr, size / RADEON_GPU_PAGE_SIZE, &fence);
 122                 if (r) {
 123                         DRM_ERROR("Failed GTT->VRAM copy %d\n", i);
 124                         goto out_lclean_unpin;
 125                 }
 126
 127                 r = radeon_fence_wait(fence, false);
 128                 if (r) {
 129                         DRM_ERROR("Failed to wait for GTT->VRAM fence %d\n", i);
 130                         goto out_lclean_unpin;
 131                 }
 132
 133                 radeon_fence_unref(&fence);
 134
 135                 r = radeon_bo_kmap(vram_obj, &vram_map);
 136                 if (r) {
 137                         DRM_ERROR("Failed to map VRAM object after copy %d\n", i);
 138                         goto out_lclean_unpin;
 139                 }
 140
 141                 for (gtt_start = gtt_map, gtt_end = gtt_map + size,
 142                      vram_start = vram_map, vram_end = vram_map + size;
 143                      vram_start < vram_end;
 144                      gtt_start++, vram_start++) {
 145                         if (*vram_start != gtt_start) {
 146                                 DRM_ERROR("Incorrect GTT->VRAM copy %d: Got 0x%p, "
 147                                           "expected 0x%p (GTT/VRAM offset "
 148                                           "0x%16llx/0x%16llx)\n",
 149                                           i, *vram_start, gtt_start,
 150                                           (unsigned long long)
 151                                           (gtt_addr - rdev->mc.gtt_start +
 152                                            (void*)gtt_start - gtt_map),
 153                                           (unsigned long long)
 154                                           (vram_addr - rdev->mc.vram_start +
 155                                            (void*)gtt_start - gtt_map));
 156                                 radeon_bo_kunmap(vram_obj);
 157                                 goto out_lclean_unpin;
 158                         }
 159                         *vram_start = vram_start;
 160                 }
 161
 162                 radeon_bo_kunmap(vram_obj);
 163
 164                 if (ring == R600_RING_TYPE_DMA_INDEX)
 165                         r = radeon_copy_dma(rdev, vram_addr, gtt_addr, size / RADEON_GPU_PAGE_SIZE, &fence);
 166                 else
 167                         r = radeon_copy_blit(rdev, vram_addr, gtt_addr, size / RADEON_GPU_PAGE_SIZE, &fence);
 168                 if (r) {
 169                         DRM_ERROR("Failed VRAM->GTT copy %d\n", i);
 170                         goto out_lclean_unpin;
 171                 }
 172
 173                 r = radeon_fence_wait(fence, false);
 174                 if (r) {
 175                         DRM_ERROR("Failed to wait for VRAM->GTT fence %d\n", i);
 176                         goto out_lclean_unpin;
 177                 }
 178
 179                 radeon_fence_unref(&fence);
 180
 181                 r = radeon_bo_kmap(gtt_obj[i], &gtt_map);
 182                 if (r) {
 183                         DRM_ERROR("Failed to map GTT object after copy %d\n", i);
 184                         goto out_lclean_unpin;
 185                 }
 186
 187                 for (gtt_start = gtt_map, gtt_end = gtt_map + size,
 188                      vram_start = vram_map, vram_end = vram_map + size;
 189                      gtt_start < gtt_end;
 190                      gtt_start++, vram_start++) {
 191                         if (*gtt_start != vram_start) {
 192                                 DRM_ERROR("Incorrect VRAM->GTT copy %d: Got 0x%p, "
 193                                           "expected 0x%p (VRAM/GTT offset "
 194                                           "0x%16llx/0x%16llx)\n",
 195                                           i, *gtt_start, vram_start,
 196                                           (unsigned long long)
 197                                           (vram_addr - rdev->mc.vram_start +
 198                                            (void*)vram_start - vram_map),
 199                                           (unsigned long long)
 200                                           (gtt_addr - rdev->mc.gtt_start +
 201                                            (void*)vram_start - vram_map));
 202                                 radeon_bo_kunmap(gtt_obj[i]);
 203                                 goto out_lclean_unpin;
 204                         }
 205                 }
 206
 207                 radeon_bo_kunmap(gtt_obj[i]);
 208
 209                 DRM_INFO("Tested GTT->VRAM and VRAM->GTT copy for GTT offset 0x%llx\n",
 210                          gtt_addr - rdev->mc.gtt_start);
 211                 continue;
 212
 213 out_lclean_unpin:
 214                 radeon_bo_unpin(gtt_obj[i]);
 215 out_lclean_unres:
 216                 radeon_bo_unreserve(gtt_obj[i]);
 217 out_lclean_unref:
 218                 radeon_bo_unref(&gtt_obj[i]);
 219 out_lclean:
 220                 for (--i; i >= 0; --i) {
 221                         radeon_bo_unpin(gtt_obj[i]);
 222                         radeon_bo_unreserve(gtt_obj[i]);
 223                         radeon_bo_unref(&gtt_obj[i]);
 224                 }
 225                 if (fence)
 226                         radeon_fence_unref(&fence);
 227                 break;
 228         }
 229
 230         radeon_bo_unpin(vram_obj);
 231 out_unres:
 232         radeon_bo_unreserve(vram_obj);
 233 out_unref:
 234         radeon_bo_unref(&vram_obj);
 235 out_cleanup:
 236         kfree(gtt_obj);
 237         if (r) {
 238                 printk(KERN_WARNING "Error while testing BO move.\n");
 239         }
 240 }
 241
 242 void radeon_test_moves(struct radeon_device *rdev)
 243 {
 244         if (rdev->asic->copy.dma)
 245                 radeon_do_test_moves(rdev, RADEON_TEST_COPY_DMA);
 246         if (rdev->asic->copy.blit)
 247                 radeon_do_test_moves(rdev, RADEON_TEST_COPY_BLIT);
 248 }
 249
 250 static int radeon_test_create_and_emit_fence(struct radeon_device *rdev,
 251                                              struct radeon_ring *ring,
 252                                              struct radeon_fence **fence)
 253 {
 254         uint32_t handle = ring->idx ^ 0xdeafbeef;
 255         int r;
 256
 257         if (ring->idx == R600_RING_TYPE_UVD_INDEX) {
 258                 r = radeon_uvd_get_create_msg(rdev, ring->idx, handle, NULL);
 259                 if (r) {
 260                         DRM_ERROR("Failed to get dummy create msg\n");
 261                         return r;
 262                 }
 263
 264                 r = radeon_uvd_get_destroy_msg(rdev, ring->idx, handle, fence);
 265                 if (r) {
 266                         DRM_ERROR("Failed to get dummy destroy msg\n");
 267                         return r;
 268                 }
 269
 270         } else if (ring->idx == TN_RING_TYPE_VCE1_INDEX ||
 271                    ring->idx == TN_RING_TYPE_VCE2_INDEX) {
 272                 r = radeon_vce_get_create_msg(rdev, ring->idx, handle, NULL);
 273                 if (r) {
 274                         DRM_ERROR("Failed to get dummy create msg\n");
 275                         return r;
 276                 }
 277
 278                 r = radeon_vce_get_destroy_msg(rdev, ring->idx, handle, fence);
 279                 if (r) {
 280                         DRM_ERROR("Failed to get dummy destroy msg\n");
 281                         return r;
 282                 }
 283
 284         } else {
 285                 r = radeon_ring_lock(rdev, ring, 64);
 286                 if (r) {
 287                         DRM_ERROR("Failed to lock ring A %d\n", ring->idx);
 288                         return r;
 289                 }
 290                 radeon_fence_emit(rdev, fence, ring->idx);
 291                 radeon_ring_unlock_commit(rdev, ring);
 292         }
 293         return 0;
 294 }
 295
 296 void radeon_test_ring_sync(struct radeon_device *rdev,
 297                            struct radeon_ring *ringA,
 298                            struct radeon_ring *ringB)
 299 {
 300         struct radeon_fence *fence1 = NULL, *fence2 = NULL;
 301         struct radeon_semaphore *semaphore = NULL;
 302         int r;
 303
 304         r = radeon_semaphore_create(rdev, &semaphore);
 305         if (r) {
 306                 DRM_ERROR("Failed to create semaphore\n");
 307                 goto out_cleanup;
 308         }
 309
 310         r = radeon_ring_lock(rdev, ringA, 64);
 311         if (r) {
 312                 DRM_ERROR("Failed to lock ring A %d\n", ringA->idx);
 313                 goto out_cleanup;
 314         }
 315         radeon_semaphore_emit_wait(rdev, ringA->idx, semaphore);
 316         radeon_ring_unlock_commit(rdev, ringA);
 317
 318         r = radeon_test_create_and_emit_fence(rdev, ringA, &fence1);
 319         if (r)
 320                 goto out_cleanup;
 321
 322         r = radeon_ring_lock(rdev, ringA, 64);
 323         if (r) {
 324                 DRM_ERROR("Failed to lock ring A %d\n", ringA->idx);
 325                 goto out_cleanup;
 326         }
 327         radeon_semaphore_emit_wait(rdev, ringA->idx, semaphore);
 328         radeon_ring_unlock_commit(rdev, ringA);
 329
 330         r = radeon_test_create_and_emit_fence(rdev, ringA, &fence2);
 331         if (r)
 332                 goto out_cleanup;
 333
 334         mdelay(1000);
 335
 336         if (radeon_fence_signaled(fence1)) {
 337                 DRM_ERROR("Fence 1 signaled without waiting for semaphore.\n");
 338                 goto out_cleanup;
 339         }
 340
 341         r = radeon_ring_lock(rdev, ringB, 64);
 342         if (r) {
 343                 DRM_ERROR("Failed to lock ring B %p\n", ringB);
 344                 goto out_cleanup;
 345         }
 346         radeon_semaphore_emit_signal(rdev, ringB->idx, semaphore);
 347         radeon_ring_unlock_commit(rdev, ringB);
 348
 349         r = radeon_fence_wait(fence1, false);
 350         if (r) {
 351                 DRM_ERROR("Failed to wait for sync fence 1\n");
 352                 goto out_cleanup;
 353         }
 354
 355         mdelay(1000);
 356
 357         if (radeon_fence_signaled(fence2)) {
 358                 DRM_ERROR("Fence 2 signaled without waiting for semaphore.\n");
 359                 goto out_cleanup;
 360         }
 361
 362         r = radeon_ring_lock(rdev, ringB, 64);
 363         if (r) {
 364                 DRM_ERROR("Failed to lock ring B %p\n", ringB);
 365                 goto out_cleanup;
 366         }
 367         radeon_semaphore_emit_signal(rdev, ringB->idx, semaphore);
 368         radeon_ring_unlock_commit(rdev, ringB);
 369
 370         r = radeon_fence_wait(fence2, false);
 371         if (r) {
 372                 DRM_ERROR("Failed to wait for sync fence 1\n");
 373                 goto out_cleanup;
 374         }
 375
 376 out_cleanup:
 377         radeon_semaphore_free(rdev, &semaphore, NULL);
 378
 379         if (fence1)
 380                 radeon_fence_unref(&fence1);
 381
 382         if (fence2)
 383                 radeon_fence_unref(&fence2);
 384
 385         if (r)
 386                 printk(KERN_WARNING "Error while testing ring sync (%d).\n", r);
 387 }
 388
 389 static void radeon_test_ring_sync2(struct radeon_device *rdev,
 390                             struct radeon_ring *ringA,
 391                             struct radeon_ring *ringB,
 392                             struct radeon_ring *ringC)
 393 {
 394         struct radeon_fence *fenceA = NULL, *fenceB = NULL;
 395         struct radeon_semaphore *semaphore = NULL;
 396         bool sigA, sigB;
 397         int i, r;
 398
 399         r = radeon_semaphore_create(rdev, &semaphore);
 400         if (r) {
 401                 DRM_ERROR("Failed to create semaphore\n");
 402                 goto out_cleanup;
 403         }
 404
 405         r = radeon_ring_lock(rdev, ringA, 64);
 406         if (r) {
 407                 DRM_ERROR("Failed to lock ring A %d\n", ringA->idx);
 408                 goto out_cleanup;
 409         }
 410         radeon_semaphore_emit_wait(rdev, ringA->idx, semaphore);
 411         radeon_ring_unlock_commit(rdev, ringA);
 412
 413         r = radeon_test_create_and_emit_fence(rdev, ringA, &fenceA);
 414         if (r)
 415                 goto out_cleanup;
 416
 417         r = radeon_ring_lock(rdev, ringB, 64);
 418         if (r) {
 419                 DRM_ERROR("Failed to lock ring B %d\n", ringB->idx);
 420                 goto out_cleanup;
 421         }
 422         radeon_semaphore_emit_wait(rdev, ringB->idx, semaphore);
 423         radeon_ring_unlock_commit(rdev, ringB);
 424         r = radeon_test_create_and_emit_fence(rdev, ringB, &fenceB);
 425         if (r)
 426                 goto out_cleanup;
 427
 428         mdelay(1000);
 429
 430         if (radeon_fence_signaled(fenceA)) {
 431                 DRM_ERROR("Fence A signaled without waiting for semaphore.\n");
 432                 goto out_cleanup;
 433         }
 434         if (radeon_fence_signaled(fenceB)) {
 435                 DRM_ERROR("Fence B signaled without waiting for semaphore.\n");
 436                 goto out_cleanup;
 437         }
 438
 439         r = radeon_ring_lock(rdev, ringC, 64);
 440         if (r) {
 441                 DRM_ERROR("Failed to lock ring B %p\n", ringC);
 442                 goto out_cleanup;
 443         }
 444         radeon_semaphore_emit_signal(rdev, ringC->idx, semaphore);
 445         radeon_ring_unlock_commit(rdev, ringC);
 446
 447         for (i = 0; i < 30; ++i) {
 448                 mdelay(100);
 449                 sigA = radeon_fence_signaled(fenceA);
 450                 sigB = radeon_fence_signaled(fenceB);
 451                 if (sigA || sigB)
 452                         break;
 453         }
 454
 455         if (!sigA && !sigB) {
 456                 DRM_ERROR("Neither fence A nor B has been signaled\n");
 457                 goto out_cleanup;
 458         } else if (sigA && sigB) {
 459                 DRM_ERROR("Both fence A and B has been signaled\n");
 460                 goto out_cleanup;
 461         }
 462
 463         DRM_INFO("Fence %c was first signaled\n", sigA ? 'A' : 'B');
 464
 465         r = radeon_ring_lock(rdev, ringC, 64);
 466         if (r) {
 467                 DRM_ERROR("Failed to lock ring B %p\n", ringC);
 468                 goto out_cleanup;
 469         }
 470         radeon_semaphore_emit_signal(rdev, ringC->idx, semaphore);
 471         radeon_ring_unlock_commit(rdev, ringC);
 472
 473         mdelay(1000);
 474
 475         r = radeon_fence_wait(fenceA, false);
 476         if (r) {
 477                 DRM_ERROR("Failed to wait for sync fence A\n");
 478                 goto out_cleanup;
 479         }
 480         r = radeon_fence_wait(fenceB, false);
 481         if (r) {
 482                 DRM_ERROR("Failed to wait for sync fence B\n");
 483                 goto out_cleanup;
 484         }
 485
 486 out_cleanup:
 487         radeon_semaphore_free(rdev, &semaphore, NULL);
 488
 489         if (fenceA)
 490                 radeon_fence_unref(&fenceA);
 491
 492         if (fenceB)
 493                 radeon_fence_unref(&fenceB);
 494
 495         if (r)
 496                 printk(KERN_WARNING "Error while testing ring sync (%d).\n", r);
 497 }
 498
 499 static bool radeon_test_sync_possible(struct radeon_ring *ringA,
 500                                       struct radeon_ring *ringB)
 501 {
 502         if (ringA->idx == TN_RING_TYPE_VCE2_INDEX &&
 503             ringB->idx == TN_RING_TYPE_VCE1_INDEX)
 504                 return false;
 505
 506         return true;
 507 }
 508
 509 void radeon_test_syncing(struct radeon_device *rdev)
 510 {
 511         int i, j, k;
 512
 513         for (i = 1; i < RADEON_NUM_RINGS; ++i) {
 514                 struct radeon_ring *ringA = &rdev->ring[i];
 515                 if (!ringA->ready)
 516                         continue;
 517
 518                 for (j = 0; j < i; ++j) {
 519                         struct radeon_ring *ringB = &rdev->ring[j];
 520                         if (!ringB->ready)
 521                                 continue;
 522
 523                         if (!radeon_test_sync_possible(ringA, ringB))
 524                                 continue;
 525
 526                         DRM_INFO("Testing syncing between rings %d and %d...\n", i, j);
 527                         radeon_test_ring_sync(rdev, ringA, ringB);
 528
 529                         DRM_INFO("Testing syncing between rings %d and %d...\n", j, i);
 530                         radeon_test_ring_sync(rdev, ringB, ringA);
 531
 532                         for (k = 0; k < j; ++k) {
 533                                 struct radeon_ring *ringC = &rdev->ring[k];
 534                                 if (!ringC->ready)
 535                                         continue;
 536
 537                                 if (!radeon_test_sync_possible(ringA, ringC))
 538                                         continue;
 539
 540                                 if (!radeon_test_sync_possible(ringB, ringC))
 541                                         continue;
 542
 543                                 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", i, j, k);
 544                                 radeon_test_ring_sync2(rdev, ringA, ringB, ringC);
 545
 546                                 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", i, k, j);
 547                                 radeon_test_ring_sync2(rdev, ringA, ringC, ringB);
 548
 549                                 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", j, i, k);
 550                                 radeon_test_ring_sync2(rdev, ringB, ringA, ringC);
 551
 552                                 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", j, k, i);
 553                                 radeon_test_ring_sync2(rdev, ringB, ringC, ringA);
 554
 555                                 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", k, i, j);
 556                                 radeon_test_ring_sync2(rdev, ringC, ringA, ringB);
 557
 558                                 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", k, j, i);
 559                                 radeon_test_ring_sync2(rdev, ringC, ringB, ringA);
 560                         }
 561                 }
 562         }
 563 }