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         struct radeon_fence *fence = NULL;
  39         uint64_t gtt_addr, vram_addr;
  40         unsigned i, n, size;
  41         int 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 - RADEON_IB_POOL_SIZE*64*1024;
  61         for (i = 0; i < RADEON_NUM_RINGS; ++i)
  62                 n -= rdev->ring[i].ring_size;
  63         if (rdev->wb.wb_obj)
  64                 n -= RADEON_GPU_PAGE_SIZE;
  65         if (rdev->ih.ring_obj)
  66                 n -= rdev->ih.ring_size;
  67         n /= size;
  68
  69         gtt_obj = kzalloc(n * sizeof(*gtt_obj), GFP_KERNEL);
  70         if (!gtt_obj) {
  71                 DRM_ERROR("Failed to allocate %d pointers\n", n);
  72                 r = 1;
  73                 goto out_cleanup;
  74         }
  75
  76         r = radeon_bo_create(rdev, size, PAGE_SIZE, true, RADEON_GEM_DOMAIN_VRAM,
  77                              NULL, &vram_obj);
  78         if (r) {
  79                 DRM_ERROR("Failed to create VRAM object\n");
  80                 goto out_cleanup;
  81         }
  82         r = radeon_bo_reserve(vram_obj, false);
  83         if (unlikely(r != 0))
  84                 goto out_cleanup;
  85         r = radeon_bo_pin(vram_obj, RADEON_GEM_DOMAIN_VRAM, &vram_addr);
  86         if (r) {
  87                 DRM_ERROR("Failed to pin VRAM object\n");
  88                 goto out_cleanup;
  89         }
  90         for (i = 0; i < n; i++) {
  91                 void *gtt_map, *vram_map;
  92                 void **gtt_start, **gtt_end;
  93                 void **vram_start, **vram_end;
  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_cleanup;
 100                 }
 101
 102                 r = radeon_bo_reserve(gtt_obj[i], false);
 103                 if (unlikely(r != 0))
 104                         goto out_cleanup;
 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_cleanup;
 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_cleanup;
 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_cleanup;
 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_cleanup;
 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_cleanup;
 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_cleanup;
 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_cleanup;
 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_cleanup;
 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_cleanup;
 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_cleanup;
 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         }
 218
 219 out_cleanup:
 220         if (vram_obj) {
 221                 if (radeon_bo_is_reserved(vram_obj)) {
 222                         radeon_bo_unpin(vram_obj);
 223                         radeon_bo_unreserve(vram_obj);
 224                 }
 225                 radeon_bo_unref(&vram_obj);
 226         }
 227         if (gtt_obj) {
 228                 for (i = 0; i < n; i++) {
 229                         if (gtt_obj[i]) {
 230                                 if (radeon_bo_is_reserved(gtt_obj[i])) {
 231                                         radeon_bo_unpin(gtt_obj[i]);
 232                                         radeon_bo_unreserve(gtt_obj[i]);
 233                                 }
 234                                 radeon_bo_unref(&gtt_obj[i]);
 235                         }
 236                 }
 237                 kfree(gtt_obj);
 238         }
 239         if (fence) {
 240                 radeon_fence_unref(&fence);
 241         }
 242         if (r) {
 243                 printk(KERN_WARNING "Error while testing BO move.\n");
 244         }
 245 }
 246
 247 void radeon_test_moves(struct radeon_device *rdev)
 248 {
 249         if (rdev->asic->copy.dma)
 250                 radeon_do_test_moves(rdev, RADEON_TEST_COPY_DMA);
 251         if (rdev->asic->copy.blit)
 252                 radeon_do_test_moves(rdev, RADEON_TEST_COPY_BLIT);
 253 }
 254
 255 static int radeon_test_create_and_emit_fence(struct radeon_device *rdev,
 256                                              struct radeon_ring *ring,
 257                                              struct radeon_fence **fence)
 258 {
 259         int r;
 260
 261         if (ring->idx == R600_RING_TYPE_UVD_INDEX) {
 262                 r = radeon_uvd_get_create_msg(rdev, ring->idx, 1, NULL);
 263                 if (r) {
 264                         DRM_ERROR("Failed to get dummy create msg\n");
 265                         return r;
 266                 }
 267
 268                 r = radeon_uvd_get_destroy_msg(rdev, ring->idx, 1, fence);
 269                 if (r) {
 270                         DRM_ERROR("Failed to get dummy destroy msg\n");
 271                         return r;
 272                 }
 273         } else {
 274                 r = radeon_ring_lock(rdev, ring, 64);
 275                 if (r) {
 276                         DRM_ERROR("Failed to lock ring A %d\n", ring->idx);
 277                         return r;
 278                 }
 279                 radeon_fence_emit(rdev, fence, ring->idx);
 280                 radeon_ring_unlock_commit(rdev, ring);
 281         }
 282         return 0;
 283 }
 284
 285 void radeon_test_ring_sync(struct radeon_device *rdev,
 286                            struct radeon_ring *ringA,
 287                            struct radeon_ring *ringB)
 288 {
 289         struct radeon_fence *fence1 = NULL, *fence2 = NULL;
 290         struct radeon_semaphore *semaphore = NULL;
 291         int r;
 292
 293         r = radeon_semaphore_create(rdev, &semaphore);
 294         if (r) {
 295                 DRM_ERROR("Failed to create semaphore\n");
 296                 goto out_cleanup;
 297         }
 298
 299         r = radeon_ring_lock(rdev, ringA, 64);
 300         if (r) {
 301                 DRM_ERROR("Failed to lock ring A %d\n", ringA->idx);
 302                 goto out_cleanup;
 303         }
 304         radeon_semaphore_emit_wait(rdev, ringA->idx, semaphore);
 305         radeon_ring_unlock_commit(rdev, ringA);
 306
 307         r = radeon_test_create_and_emit_fence(rdev, ringA, &fence1);
 308         if (r)
 309                 goto out_cleanup;
 310
 311         r = radeon_ring_lock(rdev, ringA, 64);
 312         if (r) {
 313                 DRM_ERROR("Failed to lock ring A %d\n", ringA->idx);
 314                 goto out_cleanup;
 315         }
 316         radeon_semaphore_emit_wait(rdev, ringA->idx, semaphore);
 317         radeon_ring_unlock_commit(rdev, ringA);
 318
 319         r = radeon_test_create_and_emit_fence(rdev, ringA, &fence2);
 320         if (r)
 321                 goto out_cleanup;
 322
 323         mdelay(1000);
 324
 325         if (radeon_fence_signaled(fence1)) {
 326                 DRM_ERROR("Fence 1 signaled without waiting for semaphore.\n");
 327                 goto out_cleanup;
 328         }
 329
 330         r = radeon_ring_lock(rdev, ringB, 64);
 331         if (r) {
 332                 DRM_ERROR("Failed to lock ring B %p\n", ringB);
 333                 goto out_cleanup;
 334         }
 335         radeon_semaphore_emit_signal(rdev, ringB->idx, semaphore);
 336         radeon_ring_unlock_commit(rdev, ringB);
 337
 338         r = radeon_fence_wait(fence1, false);
 339         if (r) {
 340                 DRM_ERROR("Failed to wait for sync fence 1\n");
 341                 goto out_cleanup;
 342         }
 343
 344         mdelay(1000);
 345
 346         if (radeon_fence_signaled(fence2)) {
 347                 DRM_ERROR("Fence 2 signaled without waiting for semaphore.\n");
 348                 goto out_cleanup;
 349         }
 350
 351         r = radeon_ring_lock(rdev, ringB, 64);
 352         if (r) {
 353                 DRM_ERROR("Failed to lock ring B %p\n", ringB);
 354                 goto out_cleanup;
 355         }
 356         radeon_semaphore_emit_signal(rdev, ringB->idx, semaphore);
 357         radeon_ring_unlock_commit(rdev, ringB);
 358
 359         r = radeon_fence_wait(fence2, false);
 360         if (r) {
 361                 DRM_ERROR("Failed to wait for sync fence 1\n");
 362                 goto out_cleanup;
 363         }
 364
 365 out_cleanup:
 366         radeon_semaphore_free(rdev, &semaphore, NULL);
 367
 368         if (fence1)
 369                 radeon_fence_unref(&fence1);
 370
 371         if (fence2)
 372                 radeon_fence_unref(&fence2);
 373
 374         if (r)
 375                 printk(KERN_WARNING "Error while testing ring sync (%d).\n", r);
 376 }
 377
 378 static void radeon_test_ring_sync2(struct radeon_device *rdev,
 379                             struct radeon_ring *ringA,
 380                             struct radeon_ring *ringB,
 381                             struct radeon_ring *ringC)
 382 {
 383         struct radeon_fence *fenceA = NULL, *fenceB = NULL;
 384         struct radeon_semaphore *semaphore = NULL;
 385         bool sigA, sigB;
 386         int i, r;
 387
 388         r = radeon_semaphore_create(rdev, &semaphore);
 389         if (r) {
 390                 DRM_ERROR("Failed to create semaphore\n");
 391                 goto out_cleanup;
 392         }
 393
 394         r = radeon_ring_lock(rdev, ringA, 64);
 395         if (r) {
 396                 DRM_ERROR("Failed to lock ring A %d\n", ringA->idx);
 397                 goto out_cleanup;
 398         }
 399         radeon_semaphore_emit_wait(rdev, ringA->idx, semaphore);
 400         radeon_ring_unlock_commit(rdev, ringA);
 401
 402         r = radeon_test_create_and_emit_fence(rdev, ringA, &fenceA);
 403         if (r)
 404                 goto out_cleanup;
 405
 406         r = radeon_ring_lock(rdev, ringB, 64);
 407         if (r) {
 408                 DRM_ERROR("Failed to lock ring B %d\n", ringB->idx);
 409                 goto out_cleanup;
 410         }
 411         radeon_semaphore_emit_wait(rdev, ringB->idx, semaphore);
 412         radeon_ring_unlock_commit(rdev, ringB);
 413         r = radeon_test_create_and_emit_fence(rdev, ringB, &fenceB);
 414         if (r)
 415                 goto out_cleanup;
 416
 417         mdelay(1000);
 418
 419         if (radeon_fence_signaled(fenceA)) {
 420                 DRM_ERROR("Fence A signaled without waiting for semaphore.\n");
 421                 goto out_cleanup;
 422         }
 423         if (radeon_fence_signaled(fenceB)) {
 424                 DRM_ERROR("Fence B signaled without waiting for semaphore.\n");
 425                 goto out_cleanup;
 426         }
 427
 428         r = radeon_ring_lock(rdev, ringC, 64);
 429         if (r) {
 430                 DRM_ERROR("Failed to lock ring B %p\n", ringC);
 431                 goto out_cleanup;
 432         }
 433         radeon_semaphore_emit_signal(rdev, ringC->idx, semaphore);
 434         radeon_ring_unlock_commit(rdev, ringC);
 435
 436         for (i = 0; i < 30; ++i) {
 437                 mdelay(100);
 438                 sigA = radeon_fence_signaled(fenceA);
 439                 sigB = radeon_fence_signaled(fenceB);
 440                 if (sigA || sigB)
 441                         break;
 442         }
 443
 444         if (!sigA && !sigB) {
 445                 DRM_ERROR("Neither fence A nor B has been signaled\n");
 446                 goto out_cleanup;
 447         } else if (sigA && sigB) {
 448                 DRM_ERROR("Both fence A and B has been signaled\n");
 449                 goto out_cleanup;
 450         }
 451
 452         DRM_INFO("Fence %c was first signaled\n", sigA ? 'A' : 'B');
 453
 454         r = radeon_ring_lock(rdev, ringC, 64);
 455         if (r) {
 456                 DRM_ERROR("Failed to lock ring B %p\n", ringC);
 457                 goto out_cleanup;
 458         }
 459         radeon_semaphore_emit_signal(rdev, ringC->idx, semaphore);
 460         radeon_ring_unlock_commit(rdev, ringC);
 461
 462         mdelay(1000);
 463
 464         r = radeon_fence_wait(fenceA, false);
 465         if (r) {
 466                 DRM_ERROR("Failed to wait for sync fence A\n");
 467                 goto out_cleanup;
 468         }
 469         r = radeon_fence_wait(fenceB, false);
 470         if (r) {
 471                 DRM_ERROR("Failed to wait for sync fence B\n");
 472                 goto out_cleanup;
 473         }
 474
 475 out_cleanup:
 476         radeon_semaphore_free(rdev, &semaphore, NULL);
 477
 478         if (fenceA)
 479                 radeon_fence_unref(&fenceA);
 480
 481         if (fenceB)
 482                 radeon_fence_unref(&fenceB);
 483
 484         if (r)
 485                 printk(KERN_WARNING "Error while testing ring sync (%d).\n", r);
 486 }
 487
 488 void radeon_test_syncing(struct radeon_device *rdev)
 489 {
 490         int i, j, k;
 491
 492         for (i = 1; i < RADEON_NUM_RINGS; ++i) {
 493                 struct radeon_ring *ringA = &rdev->ring[i];
 494                 if (!ringA->ready)
 495                         continue;
 496
 497                 for (j = 0; j < i; ++j) {
 498                         struct radeon_ring *ringB = &rdev->ring[j];
 499                         if (!ringB->ready)
 500                                 continue;
 501
 502                         DRM_INFO("Testing syncing between rings %d and %d...\n", i, j);
 503                         radeon_test_ring_sync(rdev, ringA, ringB);
 504
 505                         DRM_INFO("Testing syncing between rings %d and %d...\n", j, i);
 506                         radeon_test_ring_sync(rdev, ringB, ringA);
 507
 508                         for (k = 0; k < j; ++k) {
 509                                 struct radeon_ring *ringC = &rdev->ring[k];
 510                                 if (!ringC->ready)
 511                                         continue;
 512
 513                                 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", i, j, k);
 514                                 radeon_test_ring_sync2(rdev, ringA, ringB, ringC);
 515
 516                                 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", i, k, j);
 517                                 radeon_test_ring_sync2(rdev, ringA, ringC, ringB);
 518
 519                                 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", j, i, k);
 520                                 radeon_test_ring_sync2(rdev, ringB, ringA, ringC);
 521
 522                                 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", j, k, i);
 523                                 radeon_test_ring_sync2(rdev, ringB, ringC, ringA);
 524
 525                                 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", k, i, j);
 526                                 radeon_test_ring_sync2(rdev, ringC, ringA, ringB);
 527
 528                                 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", k, j, i);
 529                                 radeon_test_ring_sync2(rdev, ringC, ringB, ringA);
 530                         }
 531                 }
 532         }
 533 }