1 /* 2 * Copyright 2009 VMware, Inc. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20 * OTHER DEALINGS IN THE SOFTWARE. 21 * 22 * Authors: Michel Dänzer 23 */ 24 #include <drm/drmP.h> 25 #include <drm/radeon_drm.h> 26 #include "radeon_reg.h" 27 #include "radeon.h" 28 29 #define RADEON_TEST_COPY_BLIT 1 30 #define RADEON_TEST_COPY_DMA 0 31 32 33 /* Test BO GTT->VRAM and VRAM->GTT GPU copies across the whole GTT aperture */ 34 static void radeon_do_test_moves(struct radeon_device *rdev, int flag) 35 { 36 struct radeon_bo *vram_obj = NULL; 37 struct radeon_bo **gtt_obj = NULL; 38 uint64_t gtt_addr, vram_addr; 39 unsigned n, size; 40 int i, r, ring; 41 42 switch (flag) { 43 case RADEON_TEST_COPY_DMA: 44 ring = radeon_copy_dma_ring_index(rdev); 45 break; 46 case RADEON_TEST_COPY_BLIT: 47 ring = radeon_copy_blit_ring_index(rdev); 48 break; 49 default: 50 DRM_ERROR("Unknown copy method\n"); 51 return; 52 } 53 54 size = 1024 * 1024; 55 56 /* Number of tests = 57 * (Total GTT - IB pool - writeback page - ring buffers) / test size 58 */ 59 n = rdev->mc.gtt_size - rdev->gart_pin_size; 60 n /= size; 61 62 gtt_obj = kzalloc(n * sizeof(*gtt_obj), GFP_KERNEL); 63 if (!gtt_obj) { 64 DRM_ERROR("Failed to allocate %d pointers\n", n); 65 r = 1; 66 goto out_cleanup; 67 } 68 69 r = radeon_bo_create(rdev, size, PAGE_SIZE, true, RADEON_GEM_DOMAIN_VRAM, 70 0, NULL, NULL, &vram_obj); 71 if (r) { 72 DRM_ERROR("Failed to create VRAM object\n"); 73 goto out_cleanup; 74 } 75 r = radeon_bo_reserve(vram_obj, false); 76 if (unlikely(r != 0)) 77 goto out_unref; 78 r = radeon_bo_pin(vram_obj, RADEON_GEM_DOMAIN_VRAM, &vram_addr); 79 if (r) { 80 DRM_ERROR("Failed to pin VRAM object\n"); 81 goto out_unres; 82 } 83 for (i = 0; i < n; i++) { 84 void *gtt_map, *vram_map; 85 void **gtt_start, **gtt_end; 86 void **vram_start, **vram_end; 87 struct radeon_fence *fence = NULL; 88 89 r = radeon_bo_create(rdev, size, PAGE_SIZE, true, 90 RADEON_GEM_DOMAIN_GTT, 0, NULL, NULL, 91 gtt_obj + i); 92 if (r) { 93 DRM_ERROR("Failed to create GTT object %d\n", i); 94 goto out_lclean; 95 } 96 97 r = radeon_bo_reserve(gtt_obj[i], false); 98 if (unlikely(r != 0)) 99 goto out_lclean_unref; 100 r = radeon_bo_pin(gtt_obj[i], RADEON_GEM_DOMAIN_GTT, >t_addr); 101 if (r) { 102 DRM_ERROR("Failed to pin GTT object %d\n", i); 103 goto out_lclean_unres; 104 } 105 106 r = radeon_bo_kmap(gtt_obj[i], >t_map); 107 if (r) { 108 DRM_ERROR("Failed to map GTT object %d\n", i); 109 goto out_lclean_unpin; 110 } 111 112 for (gtt_start = gtt_map, gtt_end = gtt_map + size; 113 gtt_start < gtt_end; 114 gtt_start++) 115 *gtt_start = gtt_start; 116 117 radeon_bo_kunmap(gtt_obj[i]); 118 119 if (ring == R600_RING_TYPE_DMA_INDEX) 120 fence = radeon_copy_dma(rdev, gtt_addr, vram_addr, 121 size / RADEON_GPU_PAGE_SIZE, 122 vram_obj->tbo.resv); 123 else 124 fence = radeon_copy_blit(rdev, gtt_addr, vram_addr, 125 size / RADEON_GPU_PAGE_SIZE, 126 vram_obj->tbo.resv); 127 if (IS_ERR(fence)) { 128 DRM_ERROR("Failed GTT->VRAM copy %d\n", i); 129 r = PTR_ERR(fence); 130 goto out_lclean_unpin; 131 } 132 133 r = radeon_fence_wait(fence, false); 134 if (r) { 135 DRM_ERROR("Failed to wait for GTT->VRAM fence %d\n", i); 136 goto out_lclean_unpin; 137 } 138 139 radeon_fence_unref(&fence); 140 141 r = radeon_bo_kmap(vram_obj, &vram_map); 142 if (r) { 143 DRM_ERROR("Failed to map VRAM object after copy %d\n", i); 144 goto out_lclean_unpin; 145 } 146 147 for (gtt_start = gtt_map, gtt_end = gtt_map + size, 148 vram_start = vram_map, vram_end = vram_map + size; 149 vram_start < vram_end; 150 gtt_start++, vram_start++) { 151 if (*vram_start != gtt_start) { 152 DRM_ERROR("Incorrect GTT->VRAM copy %d: Got 0x%p, " 153 "expected 0x%p (GTT/VRAM offset " 154 "0x%16llx/0x%16llx)\n", 155 i, *vram_start, gtt_start, 156 (unsigned long long) 157 (gtt_addr - rdev->mc.gtt_start + 158 (void*)gtt_start - gtt_map), 159 (unsigned long long) 160 (vram_addr - rdev->mc.vram_start + 161 (void*)gtt_start - gtt_map)); 162 radeon_bo_kunmap(vram_obj); 163 goto out_lclean_unpin; 164 } 165 *vram_start = vram_start; 166 } 167 168 radeon_bo_kunmap(vram_obj); 169 170 if (ring == R600_RING_TYPE_DMA_INDEX) 171 fence = radeon_copy_dma(rdev, vram_addr, gtt_addr, 172 size / RADEON_GPU_PAGE_SIZE, 173 vram_obj->tbo.resv); 174 else 175 fence = radeon_copy_blit(rdev, vram_addr, gtt_addr, 176 size / RADEON_GPU_PAGE_SIZE, 177 vram_obj->tbo.resv); 178 if (IS_ERR(fence)) { 179 DRM_ERROR("Failed VRAM->GTT copy %d\n", i); 180 r = PTR_ERR(fence); 181 goto out_lclean_unpin; 182 } 183 184 r = radeon_fence_wait(fence, false); 185 if (r) { 186 DRM_ERROR("Failed to wait for VRAM->GTT fence %d\n", i); 187 goto out_lclean_unpin; 188 } 189 190 radeon_fence_unref(&fence); 191 192 r = radeon_bo_kmap(gtt_obj[i], >t_map); 193 if (r) { 194 DRM_ERROR("Failed to map GTT object after copy %d\n", i); 195 goto out_lclean_unpin; 196 } 197 198 for (gtt_start = gtt_map, gtt_end = gtt_map + size, 199 vram_start = vram_map, vram_end = vram_map + size; 200 gtt_start < gtt_end; 201 gtt_start++, vram_start++) { 202 if (*gtt_start != vram_start) { 203 DRM_ERROR("Incorrect VRAM->GTT copy %d: Got 0x%p, " 204 "expected 0x%p (VRAM/GTT offset " 205 "0x%16llx/0x%16llx)\n", 206 i, *gtt_start, vram_start, 207 (unsigned long long) 208 (vram_addr - rdev->mc.vram_start + 209 (void*)vram_start - vram_map), 210 (unsigned long long) 211 (gtt_addr - rdev->mc.gtt_start + 212 (void*)vram_start - vram_map)); 213 radeon_bo_kunmap(gtt_obj[i]); 214 goto out_lclean_unpin; 215 } 216 } 217 218 radeon_bo_kunmap(gtt_obj[i]); 219 220 DRM_INFO("Tested GTT->VRAM and VRAM->GTT copy for GTT offset 0x%llx\n", 221 gtt_addr - rdev->mc.gtt_start); 222 continue; 223 224 out_lclean_unpin: 225 radeon_bo_unpin(gtt_obj[i]); 226 out_lclean_unres: 227 radeon_bo_unreserve(gtt_obj[i]); 228 out_lclean_unref: 229 radeon_bo_unref(>t_obj[i]); 230 out_lclean: 231 for (--i; i >= 0; --i) { 232 radeon_bo_unpin(gtt_obj[i]); 233 radeon_bo_unreserve(gtt_obj[i]); 234 radeon_bo_unref(>t_obj[i]); 235 } 236 if (fence && !IS_ERR(fence)) 237 radeon_fence_unref(&fence); 238 break; 239 } 240 241 radeon_bo_unpin(vram_obj); 242 out_unres: 243 radeon_bo_unreserve(vram_obj); 244 out_unref: 245 radeon_bo_unref(&vram_obj); 246 out_cleanup: 247 kfree(gtt_obj); 248 if (r) { 249 pr_warn("Error while testing BO move\n"); 250 } 251 } 252 253 void radeon_test_moves(struct radeon_device *rdev) 254 { 255 if (rdev->asic->copy.dma) 256 radeon_do_test_moves(rdev, RADEON_TEST_COPY_DMA); 257 if (rdev->asic->copy.blit) 258 radeon_do_test_moves(rdev, RADEON_TEST_COPY_BLIT); 259 } 260 261 static int radeon_test_create_and_emit_fence(struct radeon_device *rdev, 262 struct radeon_ring *ring, 263 struct radeon_fence **fence) 264 { 265 uint32_t handle = ring->idx ^ 0xdeafbeef; 266 int r; 267 268 if (ring->idx == R600_RING_TYPE_UVD_INDEX) { 269 r = radeon_uvd_get_create_msg(rdev, ring->idx, handle, NULL); 270 if (r) { 271 DRM_ERROR("Failed to get dummy create msg\n"); 272 return r; 273 } 274 275 r = radeon_uvd_get_destroy_msg(rdev, ring->idx, handle, fence); 276 if (r) { 277 DRM_ERROR("Failed to get dummy destroy msg\n"); 278 return r; 279 } 280 281 } else if (ring->idx == TN_RING_TYPE_VCE1_INDEX || 282 ring->idx == TN_RING_TYPE_VCE2_INDEX) { 283 r = radeon_vce_get_create_msg(rdev, ring->idx, handle, NULL); 284 if (r) { 285 DRM_ERROR("Failed to get dummy create msg\n"); 286 return r; 287 } 288 289 r = radeon_vce_get_destroy_msg(rdev, ring->idx, handle, fence); 290 if (r) { 291 DRM_ERROR("Failed to get dummy destroy msg\n"); 292 return r; 293 } 294 295 } else { 296 r = radeon_ring_lock(rdev, ring, 64); 297 if (r) { 298 DRM_ERROR("Failed to lock ring A %d\n", ring->idx); 299 return r; 300 } 301 r = radeon_fence_emit(rdev, fence, ring->idx); 302 if (r) { 303 DRM_ERROR("Failed to emit fence\n"); 304 radeon_ring_unlock_undo(rdev, ring); 305 return r; 306 } 307 radeon_ring_unlock_commit(rdev, ring, false); 308 } 309 return 0; 310 } 311 312 void radeon_test_ring_sync(struct radeon_device *rdev, 313 struct radeon_ring *ringA, 314 struct radeon_ring *ringB) 315 { 316 struct radeon_fence *fence1 = NULL, *fence2 = NULL; 317 struct radeon_semaphore *semaphore = NULL; 318 int r; 319 320 r = radeon_semaphore_create(rdev, &semaphore); 321 if (r) { 322 DRM_ERROR("Failed to create semaphore\n"); 323 goto out_cleanup; 324 } 325 326 r = radeon_ring_lock(rdev, ringA, 64); 327 if (r) { 328 DRM_ERROR("Failed to lock ring A %d\n", ringA->idx); 329 goto out_cleanup; 330 } 331 radeon_semaphore_emit_wait(rdev, ringA->idx, semaphore); 332 radeon_ring_unlock_commit(rdev, ringA, false); 333 334 r = radeon_test_create_and_emit_fence(rdev, ringA, &fence1); 335 if (r) 336 goto out_cleanup; 337 338 r = radeon_ring_lock(rdev, ringA, 64); 339 if (r) { 340 DRM_ERROR("Failed to lock ring A %d\n", ringA->idx); 341 goto out_cleanup; 342 } 343 radeon_semaphore_emit_wait(rdev, ringA->idx, semaphore); 344 radeon_ring_unlock_commit(rdev, ringA, false); 345 346 r = radeon_test_create_and_emit_fence(rdev, ringA, &fence2); 347 if (r) 348 goto out_cleanup; 349 350 mdelay(1000); 351 352 if (radeon_fence_signaled(fence1)) { 353 DRM_ERROR("Fence 1 signaled without waiting for semaphore.\n"); 354 goto out_cleanup; 355 } 356 357 r = radeon_ring_lock(rdev, ringB, 64); 358 if (r) { 359 DRM_ERROR("Failed to lock ring B %p\n", ringB); 360 goto out_cleanup; 361 } 362 radeon_semaphore_emit_signal(rdev, ringB->idx, semaphore); 363 radeon_ring_unlock_commit(rdev, ringB, false); 364 365 r = radeon_fence_wait(fence1, false); 366 if (r) { 367 DRM_ERROR("Failed to wait for sync fence 1\n"); 368 goto out_cleanup; 369 } 370 371 mdelay(1000); 372 373 if (radeon_fence_signaled(fence2)) { 374 DRM_ERROR("Fence 2 signaled without waiting for semaphore.\n"); 375 goto out_cleanup; 376 } 377 378 r = radeon_ring_lock(rdev, ringB, 64); 379 if (r) { 380 DRM_ERROR("Failed to lock ring B %p\n", ringB); 381 goto out_cleanup; 382 } 383 radeon_semaphore_emit_signal(rdev, ringB->idx, semaphore); 384 radeon_ring_unlock_commit(rdev, ringB, false); 385 386 r = radeon_fence_wait(fence2, false); 387 if (r) { 388 DRM_ERROR("Failed to wait for sync fence 1\n"); 389 goto out_cleanup; 390 } 391 392 out_cleanup: 393 radeon_semaphore_free(rdev, &semaphore, NULL); 394 395 if (fence1) 396 radeon_fence_unref(&fence1); 397 398 if (fence2) 399 radeon_fence_unref(&fence2); 400 401 if (r) 402 pr_warn("Error while testing ring sync (%d)\n", r); 403 } 404 405 static void radeon_test_ring_sync2(struct radeon_device *rdev, 406 struct radeon_ring *ringA, 407 struct radeon_ring *ringB, 408 struct radeon_ring *ringC) 409 { 410 struct radeon_fence *fenceA = NULL, *fenceB = NULL; 411 struct radeon_semaphore *semaphore = NULL; 412 bool sigA, sigB; 413 int i, r; 414 415 r = radeon_semaphore_create(rdev, &semaphore); 416 if (r) { 417 DRM_ERROR("Failed to create semaphore\n"); 418 goto out_cleanup; 419 } 420 421 r = radeon_ring_lock(rdev, ringA, 64); 422 if (r) { 423 DRM_ERROR("Failed to lock ring A %d\n", ringA->idx); 424 goto out_cleanup; 425 } 426 radeon_semaphore_emit_wait(rdev, ringA->idx, semaphore); 427 radeon_ring_unlock_commit(rdev, ringA, false); 428 429 r = radeon_test_create_and_emit_fence(rdev, ringA, &fenceA); 430 if (r) 431 goto out_cleanup; 432 433 r = radeon_ring_lock(rdev, ringB, 64); 434 if (r) { 435 DRM_ERROR("Failed to lock ring B %d\n", ringB->idx); 436 goto out_cleanup; 437 } 438 radeon_semaphore_emit_wait(rdev, ringB->idx, semaphore); 439 radeon_ring_unlock_commit(rdev, ringB, false); 440 r = radeon_test_create_and_emit_fence(rdev, ringB, &fenceB); 441 if (r) 442 goto out_cleanup; 443 444 mdelay(1000); 445 446 if (radeon_fence_signaled(fenceA)) { 447 DRM_ERROR("Fence A signaled without waiting for semaphore.\n"); 448 goto out_cleanup; 449 } 450 if (radeon_fence_signaled(fenceB)) { 451 DRM_ERROR("Fence B signaled without waiting for semaphore.\n"); 452 goto out_cleanup; 453 } 454 455 r = radeon_ring_lock(rdev, ringC, 64); 456 if (r) { 457 DRM_ERROR("Failed to lock ring B %p\n", ringC); 458 goto out_cleanup; 459 } 460 radeon_semaphore_emit_signal(rdev, ringC->idx, semaphore); 461 radeon_ring_unlock_commit(rdev, ringC, false); 462 463 for (i = 0; i < 30; ++i) { 464 mdelay(100); 465 sigA = radeon_fence_signaled(fenceA); 466 sigB = radeon_fence_signaled(fenceB); 467 if (sigA || sigB) 468 break; 469 } 470 471 if (!sigA && !sigB) { 472 DRM_ERROR("Neither fence A nor B has been signaled\n"); 473 goto out_cleanup; 474 } else if (sigA && sigB) { 475 DRM_ERROR("Both fence A and B has been signaled\n"); 476 goto out_cleanup; 477 } 478 479 DRM_INFO("Fence %c was first signaled\n", sigA ? 'A' : 'B'); 480 481 r = radeon_ring_lock(rdev, ringC, 64); 482 if (r) { 483 DRM_ERROR("Failed to lock ring B %p\n", ringC); 484 goto out_cleanup; 485 } 486 radeon_semaphore_emit_signal(rdev, ringC->idx, semaphore); 487 radeon_ring_unlock_commit(rdev, ringC, false); 488 489 mdelay(1000); 490 491 r = radeon_fence_wait(fenceA, false); 492 if (r) { 493 DRM_ERROR("Failed to wait for sync fence A\n"); 494 goto out_cleanup; 495 } 496 r = radeon_fence_wait(fenceB, false); 497 if (r) { 498 DRM_ERROR("Failed to wait for sync fence B\n"); 499 goto out_cleanup; 500 } 501 502 out_cleanup: 503 radeon_semaphore_free(rdev, &semaphore, NULL); 504 505 if (fenceA) 506 radeon_fence_unref(&fenceA); 507 508 if (fenceB) 509 radeon_fence_unref(&fenceB); 510 511 if (r) 512 pr_warn("Error while testing ring sync (%d)\n", r); 513 } 514 515 static bool radeon_test_sync_possible(struct radeon_ring *ringA, 516 struct radeon_ring *ringB) 517 { 518 if (ringA->idx == TN_RING_TYPE_VCE2_INDEX && 519 ringB->idx == TN_RING_TYPE_VCE1_INDEX) 520 return false; 521 522 return true; 523 } 524 525 void radeon_test_syncing(struct radeon_device *rdev) 526 { 527 int i, j, k; 528 529 for (i = 1; i < RADEON_NUM_RINGS; ++i) { 530 struct radeon_ring *ringA = &rdev->ring[i]; 531 if (!ringA->ready) 532 continue; 533 534 for (j = 0; j < i; ++j) { 535 struct radeon_ring *ringB = &rdev->ring[j]; 536 if (!ringB->ready) 537 continue; 538 539 if (!radeon_test_sync_possible(ringA, ringB)) 540 continue; 541 542 DRM_INFO("Testing syncing between rings %d and %d...\n", i, j); 543 radeon_test_ring_sync(rdev, ringA, ringB); 544 545 DRM_INFO("Testing syncing between rings %d and %d...\n", j, i); 546 radeon_test_ring_sync(rdev, ringB, ringA); 547 548 for (k = 0; k < j; ++k) { 549 struct radeon_ring *ringC = &rdev->ring[k]; 550 if (!ringC->ready) 551 continue; 552 553 if (!radeon_test_sync_possible(ringA, ringC)) 554 continue; 555 556 if (!radeon_test_sync_possible(ringB, ringC)) 557 continue; 558 559 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", i, j, k); 560 radeon_test_ring_sync2(rdev, ringA, ringB, ringC); 561 562 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", i, k, j); 563 radeon_test_ring_sync2(rdev, ringA, ringC, ringB); 564 565 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", j, i, k); 566 radeon_test_ring_sync2(rdev, ringB, ringA, ringC); 567 568 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", j, k, i); 569 radeon_test_ring_sync2(rdev, ringB, ringC, ringA); 570 571 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", k, i, j); 572 radeon_test_ring_sync2(rdev, ringC, ringA, ringB); 573 574 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", k, j, i); 575 radeon_test_ring_sync2(rdev, ringC, ringB, ringA); 576 } 577 } 578 } 579 } 580