sys/dev/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         struct radeon_fence *fence = NULL;
  39         u64 gtt_addr, vram_addr;
  40         unsigned n, size;
  41         int i, r, ring;
  42
  43         switch (flag) {
  44         case RADEON_TEST_COPY_DMA:
  45                 ring = radeon_copy_dma_ring_index(rdev);
  46                 break;
  47         case RADEON_TEST_COPY_BLIT:
  48                 ring = radeon_copy_blit_ring_index(rdev);
  49                 break;
  50         default:
  51                 DRM_ERROR("Unknown copy method\n");
  52                 return;
  53         }
  54
  55         size = 1024 * 1024;
  56
  57         /* Number of tests =
  58          * (Total GTT - IB pool - writeback page - ring buffers) / test size
  59          */
  60         n = rdev->mc.gtt_size - rdev->gart_pin_size;
  61         n /= size;
  62
  63         gtt_obj = kzalloc(n * sizeof(*gtt_obj), GFP_KERNEL);
  64         if (!gtt_obj) {
  65                 DRM_ERROR("Failed to allocate %d pointers\n", n);
  66                 r = 1;
  67                 goto out_cleanup;
  68         }
  69
  70         r = radeon_bo_create(rdev, size, PAGE_SIZE, true, RADEON_GEM_DOMAIN_VRAM,
  71                              0, NULL, &vram_obj);
  72         if (r) {
  73                 DRM_ERROR("Failed to create VRAM object\n");
  74                 goto out_cleanup;
  75         }
  76         r = radeon_bo_reserve(vram_obj, false);
  77         if (unlikely(r != 0))
  78                 goto out_cleanup;
  79         r = radeon_bo_pin(vram_obj, RADEON_GEM_DOMAIN_VRAM, &vram_addr);
  80         if (r) {
  81                 DRM_ERROR("Failed to pin VRAM object\n");
  82                 goto out_cleanup;
  83         }
  84         for (i = 0; i < n; i++) {
  85                 void *gtt_map, *vram_map;
  86                 void **gtt_start, **gtt_end;
  87                 void **vram_start, **vram_end;
  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_cleanup;
  94                 }
  95
  96                 r = radeon_bo_reserve(gtt_obj[i], false);
  97                 if (unlikely(r != 0))
  98                         goto out_cleanup;
  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_cleanup;
 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_cleanup;
 109                 }
 110
 111                 for (gtt_start = gtt_map, gtt_end = (void *)((uintptr_t)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_cleanup;
 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_cleanup;
 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_cleanup;
 139                 }
 140
 141                 for (gtt_start = gtt_map, gtt_end = (void *)((uintptr_t)gtt_map + size),
 142                      vram_start = vram_map, vram_end = (void *)((uintptr_t)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                                           ((uintptr_t)gtt_addr - (uintptr_t)rdev->mc.gtt_start +
 152                                            (uintptr_t)gtt_start - (uintptr_t)gtt_map),
 153                                           (unsigned long long)
 154                                           ((uintptr_t)vram_addr - (uintptr_t)rdev->mc.vram_start +
 155                                            (uintptr_t)gtt_start - (uintptr_t)gtt_map));
 156                                 radeon_bo_kunmap(vram_obj);
 157                                 goto out_cleanup;
 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_cleanup;
 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_cleanup;
 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_cleanup;
 185                 }
 186
 187                 for (gtt_start = gtt_map, gtt_end = (void *)((uintptr_t)gtt_map + size),
 188                      vram_start = vram_map, vram_end = (void *)((uintptr_t)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                                           ((uintptr_t)vram_addr - (uintptr_t)rdev->mc.vram_start +
 198                                            (uintptr_t)vram_start - (uintptr_t)vram_map),
 199                                           (unsigned long long)
 200                                           ((uintptr_t)gtt_addr - (uintptr_t)rdev->mc.gtt_start +
 201                                            (uintptr_t)vram_start - (uintptr_t)vram_map));
 202                                 radeon_bo_kunmap(gtt_obj[i]);
 203                                 goto out_cleanup;
 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                          (uintmax_t)gtt_addr - rdev->mc.gtt_start);
 211         }
 212
 213 out_cleanup:
 214         if (vram_obj) {
 215                 if (radeon_bo_is_reserved(vram_obj)) {
 216                         radeon_bo_unpin(vram_obj);
 217                         radeon_bo_unreserve(vram_obj);
 218                 }
 219                 radeon_bo_unref(&vram_obj);
 220         }
 221         if (gtt_obj) {
 222                 for (i = 0; i < n; i++) {
 223                         if (gtt_obj[i]) {
 224                                 if (radeon_bo_is_reserved(gtt_obj[i])) {
 225                                         radeon_bo_unpin(gtt_obj[i]);
 226                                         radeon_bo_unreserve(gtt_obj[i]);
 227                                 }
 228                                 radeon_bo_unref(&gtt_obj[i]);
 229                         }
 230                 }
 231                 kfree(gtt_obj);
 232         }
 233         if (fence) {
 234                 radeon_fence_unref(&fence);
 235         }
 236         if (r) {
 237                 printk(KERN_WARNING "Error while testing BO move.\n");
 238         }
 239 }
 240
 241 void radeon_test_moves(struct radeon_device *rdev)
 242 {
 243         if (rdev->asic->copy.dma)
 244                 radeon_do_test_moves(rdev, RADEON_TEST_COPY_DMA);
 245         if (rdev->asic->copy.blit)
 246                 radeon_do_test_moves(rdev, RADEON_TEST_COPY_BLIT);
 247 }
 248
 249 static int radeon_test_create_and_emit_fence(struct radeon_device *rdev,
 250                                              struct radeon_ring *ring,
 251                                              struct radeon_fence **fence)
 252 {
 253         uint32_t handle = ring->idx ^ 0xdeafbeef;
 254         int r;
 255
 256         if (ring->idx == R600_RING_TYPE_UVD_INDEX) {
 257                 r = radeon_uvd_get_create_msg(rdev, ring->idx, handle, NULL);
 258                 if (r) {
 259                         DRM_ERROR("Failed to get dummy create msg\n");
 260                         return r;
 261                 }
 262
 263                 r = radeon_uvd_get_destroy_msg(rdev, ring->idx, handle, fence);
 264                 if (r) {
 265                         DRM_ERROR("Failed to get dummy destroy msg\n");
 266                         return r;
 267                 }
 268
 269         } else if (ring->idx == TN_RING_TYPE_VCE1_INDEX ||
 270                    ring->idx == TN_RING_TYPE_VCE2_INDEX) {
 271                 r = radeon_vce_get_create_msg(rdev, ring->idx, handle, NULL);
 272                 if (r) {
 273                         DRM_ERROR("Failed to get dummy create msg\n");
 274                         return r;
 275                 }
 276
 277                 r = radeon_vce_get_destroy_msg(rdev, ring->idx, handle, fence);
 278                 if (r) {
 279                         DRM_ERROR("Failed to get dummy destroy msg\n");
 280                         return r;
 281                 }
 282
 283         } else {
 284                 r = radeon_ring_lock(rdev, ring, 64);
 285                 if (r) {
 286                         DRM_ERROR("Failed to lock ring A %d\n", ring->idx);
 287                         return r;
 288                 }
 289                 radeon_fence_emit(rdev, fence, ring->idx);
 290                 radeon_ring_unlock_commit(rdev, ring, false);
 291         }
 292         return 0;
 293 }
 294
 295 void radeon_test_ring_sync(struct radeon_device *rdev,
 296                            struct radeon_ring *ringA,
 297                            struct radeon_ring *ringB)
 298 {
 299         struct radeon_fence *fence1 = NULL, *fence2 = NULL;
 300         struct radeon_semaphore *semaphore = NULL;
 301         int r;
 302
 303         r = radeon_semaphore_create(rdev, &semaphore);
 304         if (r) {
 305                 DRM_ERROR("Failed to create semaphore\n");
 306                 goto out_cleanup;
 307         }
 308
 309         r = radeon_ring_lock(rdev, ringA, 64);
 310         if (r) {
 311                 DRM_ERROR("Failed to lock ring A %d\n", ringA->idx);
 312                 goto out_cleanup;
 313         }
 314         radeon_semaphore_emit_wait(rdev, ringA->idx, semaphore);
 315         radeon_ring_unlock_commit(rdev, ringA, false);
 316
 317         r = radeon_test_create_and_emit_fence(rdev, ringA, &fence1);
 318         if (r)
 319                 goto out_cleanup;
 320
 321         r = radeon_ring_lock(rdev, ringA, 64);
 322         if (r) {
 323                 DRM_ERROR("Failed to lock ring A %d\n", ringA->idx);
 324                 goto out_cleanup;
 325         }
 326         radeon_semaphore_emit_wait(rdev, ringA->idx, semaphore);
 327         radeon_ring_unlock_commit(rdev, ringA, false);
 328
 329         r = radeon_test_create_and_emit_fence(rdev, ringA, &fence2);
 330         if (r)
 331                 goto out_cleanup;
 332
 333         mdelay(1000);
 334
 335         if (radeon_fence_signaled(fence1)) {
 336                 DRM_ERROR("Fence 1 signaled without waiting for semaphore.\n");
 337                 goto out_cleanup;
 338         }
 339
 340         r = radeon_ring_lock(rdev, ringB, 64);
 341         if (r) {
 342                 DRM_ERROR("Failed to lock ring B %p\n", ringB);
 343                 goto out_cleanup;
 344         }
 345         radeon_semaphore_emit_signal(rdev, ringB->idx, semaphore);
 346         radeon_ring_unlock_commit(rdev, ringB, false);
 347
 348         r = radeon_fence_wait(fence1, false);
 349         if (r) {
 350                 DRM_ERROR("Failed to wait for sync fence 1\n");
 351                 goto out_cleanup;
 352         }
 353
 354         mdelay(1000);
 355
 356         if (radeon_fence_signaled(fence2)) {
 357                 DRM_ERROR("Fence 2 signaled without waiting for semaphore.\n");
 358                 goto out_cleanup;
 359         }
 360
 361         r = radeon_ring_lock(rdev, ringB, 64);
 362         if (r) {
 363                 DRM_ERROR("Failed to lock ring B %p\n", ringB);
 364                 goto out_cleanup;
 365         }
 366         radeon_semaphore_emit_signal(rdev, ringB->idx, semaphore);
 367         radeon_ring_unlock_commit(rdev, ringB, false);
 368
 369         r = radeon_fence_wait(fence2, false);
 370         if (r) {
 371                 DRM_ERROR("Failed to wait for sync fence 1\n");
 372                 goto out_cleanup;
 373         }
 374
 375 out_cleanup:
 376         radeon_semaphore_free(rdev, &semaphore, NULL);
 377
 378         if (fence1)
 379                 radeon_fence_unref(&fence1);
 380
 381         if (fence2)
 382                 radeon_fence_unref(&fence2);
 383
 384         if (r)
 385                 printk(KERN_WARNING "Error while testing ring sync (%d).\n", r);
 386 }
 387
 388 static void radeon_test_ring_sync2(struct radeon_device *rdev,
 389                             struct radeon_ring *ringA,
 390                             struct radeon_ring *ringB,
 391                             struct radeon_ring *ringC)
 392 {
 393         struct radeon_fence *fenceA = NULL, *fenceB = NULL;
 394         struct radeon_semaphore *semaphore = NULL;
 395         bool sigA, sigB;
 396         int i, r;
 397
 398         r = radeon_semaphore_create(rdev, &semaphore);
 399         if (r) {
 400                 DRM_ERROR("Failed to create semaphore\n");
 401                 goto out_cleanup;
 402         }
 403
 404         r = radeon_ring_lock(rdev, ringA, 64);
 405         if (r) {
 406                 DRM_ERROR("Failed to lock ring A %d\n", ringA->idx);
 407                 goto out_cleanup;
 408         }
 409         radeon_semaphore_emit_wait(rdev, ringA->idx, semaphore);
 410         radeon_ring_unlock_commit(rdev, ringA, false);
 411
 412         r = radeon_test_create_and_emit_fence(rdev, ringA, &fenceA);
 413         if (r)
 414                 goto out_cleanup;
 415
 416         r = radeon_ring_lock(rdev, ringB, 64);
 417         if (r) {
 418                 DRM_ERROR("Failed to lock ring B %d\n", ringB->idx);
 419                 goto out_cleanup;
 420         }
 421         radeon_semaphore_emit_wait(rdev, ringB->idx, semaphore);
 422         radeon_ring_unlock_commit(rdev, ringB, false);
 423         r = radeon_test_create_and_emit_fence(rdev, ringB, &fenceB);
 424         if (r)
 425                 goto out_cleanup;
 426
 427         mdelay(1000);
 428
 429         if (radeon_fence_signaled(fenceA)) {
 430                 DRM_ERROR("Fence A signaled without waiting for semaphore.\n");
 431                 goto out_cleanup;
 432         }
 433         if (radeon_fence_signaled(fenceB)) {
 434                 DRM_ERROR("Fence B signaled without waiting for semaphore.\n");
 435                 goto out_cleanup;
 436         }
 437
 438         r = radeon_ring_lock(rdev, ringC, 64);
 439         if (r) {
 440                 DRM_ERROR("Failed to lock ring B %p\n", ringC);
 441                 goto out_cleanup;
 442         }
 443         radeon_semaphore_emit_signal(rdev, ringC->idx, semaphore);
 444         radeon_ring_unlock_commit(rdev, ringC, false);
 445
 446         for (i = 0; i < 30; ++i) {
 447                 mdelay(100);
 448                 sigA = radeon_fence_signaled(fenceA);
 449                 sigB = radeon_fence_signaled(fenceB);
 450                 if (sigA || sigB)
 451                         break;
 452         }
 453
 454         if (!sigA && !sigB) {
 455                 DRM_ERROR("Neither fence A nor B has been signaled\n");
 456                 goto out_cleanup;
 457         } else if (sigA && sigB) {
 458                 DRM_ERROR("Both fence A and B has been signaled\n");
 459                 goto out_cleanup;
 460         }
 461
 462         DRM_INFO("Fence %c was first signaled\n", sigA ? 'A' : 'B');
 463
 464         r = radeon_ring_lock(rdev, ringC, 64);
 465         if (r) {
 466                 DRM_ERROR("Failed to lock ring B %p\n", ringC);
 467                 goto out_cleanup;
 468         }
 469         radeon_semaphore_emit_signal(rdev, ringC->idx, semaphore);
 470         radeon_ring_unlock_commit(rdev, ringC, false);
 471
 472         mdelay(1000);
 473
 474         r = radeon_fence_wait(fenceA, false);
 475         if (r) {
 476                 DRM_ERROR("Failed to wait for sync fence A\n");
 477                 goto out_cleanup;
 478         }
 479         r = radeon_fence_wait(fenceB, false);
 480         if (r) {
 481                 DRM_ERROR("Failed to wait for sync fence B\n");
 482                 goto out_cleanup;
 483         }
 484
 485 out_cleanup:
 486         radeon_semaphore_free(rdev, &semaphore, NULL);
 487
 488         if (fenceA)
 489                 radeon_fence_unref(&fenceA);
 490
 491         if (fenceB)
 492                 radeon_fence_unref(&fenceB);
 493
 494         if (r)
 495                 printk(KERN_WARNING "Error while testing ring sync (%d).\n", r);
 496 }
 497
 498 static bool radeon_test_sync_possible(struct radeon_ring *ringA,
 499                                       struct radeon_ring *ringB)
 500 {
 501         if (ringA->idx == TN_RING_TYPE_VCE2_INDEX &&
 502             ringB->idx == TN_RING_TYPE_VCE1_INDEX)
 503                 return false;
 504
 505         return true;
 506 }
 507
 508 void radeon_test_syncing(struct radeon_device *rdev)
 509 {
 510         int i, j, k;
 511
 512         for (i = 1; i < RADEON_NUM_RINGS; ++i) {
 513                 struct radeon_ring *ringA = &rdev->ring[i];
 514                 if (!ringA->ready)
 515                         continue;
 516
 517                 for (j = 0; j < i; ++j) {
 518                         struct radeon_ring *ringB = &rdev->ring[j];
 519                         if (!ringB->ready)
 520                                 continue;
 521
 522                         if (!radeon_test_sync_possible(ringA, ringB))
 523                                 continue;
 524
 525                         DRM_INFO("Testing syncing between rings %d and %d...\n", i, j);
 526                         radeon_test_ring_sync(rdev, ringA, ringB);
 527
 528                         DRM_INFO("Testing syncing between rings %d and %d...\n", j, i);
 529                         radeon_test_ring_sync(rdev, ringB, ringA);
 530
 531                         for (k = 0; k < j; ++k) {
 532                                 struct radeon_ring *ringC = &rdev->ring[k];
 533                                 if (!ringC->ready)
 534                                         continue;
 535
 536                                 if (!radeon_test_sync_possible(ringA, ringC))
 537                                         continue;
 538
 539                                 if (!radeon_test_sync_possible(ringB, ringC))
 540                                         continue;
 541
 542                                 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", i, j, k);
 543                                 radeon_test_ring_sync2(rdev, ringA, ringB, ringC);
 544
 545                                 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", i, k, j);
 546                                 radeon_test_ring_sync2(rdev, ringA, ringC, ringB);
 547
 548                                 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", j, i, k);
 549                                 radeon_test_ring_sync2(rdev, ringB, ringA, ringC);
 550
 551                                 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", j, k, i);
 552                                 radeon_test_ring_sync2(rdev, ringB, ringC, ringA);
 553
 554                                 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", k, i, j);
 555                                 radeon_test_ring_sync2(rdev, ringC, ringA, ringB);
 556
 557                                 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", k, j, i);
 558                                 radeon_test_ring_sync2(rdev, ringC, ringB, ringA);
 559                         }
 560                 }
 561         }
 562 }