1 // SPDX-License-Identifier: GPL-2.0 OR MIT 2 /* 3 * Copyright 2009 VMware, Inc. 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining a 6 * copy of this software and associated documentation files (the "Software"), 7 * to deal in the Software without restriction, including without limitation 8 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 9 * and/or sell copies of the Software, and to permit persons to whom the 10 * Software is furnished to do so, subject to the following conditions: 11 * 12 * The above copyright notice and this permission notice shall be included in 13 * all copies or substantial portions of the Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 21 * OTHER DEALINGS IN THE SOFTWARE. 22 * 23 * Authors: Michel Dänzer 24 */ 25 #include <drm/drmP.h> 26 #include <drm/radeon_drm.h> 27 #include "radeon_reg.h" 28 #include "radeon.h" 29 30 #define RADEON_TEST_COPY_BLIT 1 31 #define RADEON_TEST_COPY_DMA 0 32 33 34 /* Test BO GTT->VRAM and VRAM->GTT GPU copies across the whole GTT aperture */ 35 static void radeon_do_test_moves(struct radeon_device *rdev, int flag) 36 { 37 struct radeon_bo *vram_obj = NULL; 38 struct radeon_bo **gtt_obj = NULL; 39 uint64_t 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 = kcalloc(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, 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_unref; 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_unres; 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 struct radeon_fence *fence = NULL; 89 90 r = radeon_bo_create(rdev, size, PAGE_SIZE, true, 91 RADEON_GEM_DOMAIN_GTT, 0, NULL, NULL, 92 gtt_obj + i); 93 if (r) { 94 DRM_ERROR("Failed to create GTT object %d\n", i); 95 goto out_lclean; 96 } 97 98 r = radeon_bo_reserve(gtt_obj[i], false); 99 if (unlikely(r != 0)) 100 goto out_lclean_unref; 101 r = radeon_bo_pin(gtt_obj[i], RADEON_GEM_DOMAIN_GTT, >t_addr); 102 if (r) { 103 DRM_ERROR("Failed to pin GTT object %d\n", i); 104 goto out_lclean_unres; 105 } 106 107 r = radeon_bo_kmap(gtt_obj[i], >t_map); 108 if (r) { 109 DRM_ERROR("Failed to map GTT object %d\n", i); 110 goto out_lclean_unpin; 111 } 112 113 for (gtt_start = gtt_map, gtt_end = gtt_map + size; 114 gtt_start < gtt_end; 115 gtt_start++) 116 *gtt_start = gtt_start; 117 118 radeon_bo_kunmap(gtt_obj[i]); 119 120 if (ring == R600_RING_TYPE_DMA_INDEX) 121 fence = radeon_copy_dma(rdev, gtt_addr, vram_addr, 122 size / RADEON_GPU_PAGE_SIZE, 123 vram_obj->tbo.resv); 124 else 125 fence = radeon_copy_blit(rdev, gtt_addr, vram_addr, 126 size / RADEON_GPU_PAGE_SIZE, 127 vram_obj->tbo.resv); 128 if (IS_ERR(fence)) { 129 DRM_ERROR("Failed GTT->VRAM copy %d\n", i); 130 r = PTR_ERR(fence); 131 goto out_lclean_unpin; 132 } 133 134 r = radeon_fence_wait(fence, false); 135 if (r) { 136 DRM_ERROR("Failed to wait for GTT->VRAM fence %d\n", i); 137 goto out_lclean_unpin; 138 } 139 140 radeon_fence_unref(&fence); 141 142 r = radeon_bo_kmap(vram_obj, &vram_map); 143 if (r) { 144 DRM_ERROR("Failed to map VRAM object after copy %d\n", i); 145 goto out_lclean_unpin; 146 } 147 148 for (gtt_start = gtt_map, gtt_end = gtt_map + size, 149 vram_start = vram_map, vram_end = vram_map + size; 150 vram_start < vram_end; 151 gtt_start++, vram_start++) { 152 if (*vram_start != gtt_start) { 153 DRM_ERROR("Incorrect GTT->VRAM copy %d: Got 0x%p, " 154 "expected 0x%p (GTT/VRAM offset " 155 "0x%16llx/0x%16llx)\n", 156 i, *vram_start, gtt_start, 157 (unsigned long long) 158 (gtt_addr - rdev->mc.gtt_start + 159 (void*)gtt_start - gtt_map), 160 (unsigned long long) 161 (vram_addr - rdev->mc.vram_start + 162 (void*)gtt_start - gtt_map)); 163 radeon_bo_kunmap(vram_obj); 164 goto out_lclean_unpin; 165 } 166 *vram_start = vram_start; 167 } 168 169 radeon_bo_kunmap(vram_obj); 170 171 if (ring == R600_RING_TYPE_DMA_INDEX) 172 fence = radeon_copy_dma(rdev, vram_addr, gtt_addr, 173 size / RADEON_GPU_PAGE_SIZE, 174 vram_obj->tbo.resv); 175 else 176 fence = radeon_copy_blit(rdev, vram_addr, gtt_addr, 177 size / RADEON_GPU_PAGE_SIZE, 178 vram_obj->tbo.resv); 179 if (IS_ERR(fence)) { 180 DRM_ERROR("Failed VRAM->GTT copy %d\n", i); 181 r = PTR_ERR(fence); 182 goto out_lclean_unpin; 183 } 184 185 r = radeon_fence_wait(fence, false); 186 if (r) { 187 DRM_ERROR("Failed to wait for VRAM->GTT fence %d\n", i); 188 goto out_lclean_unpin; 189 } 190 191 radeon_fence_unref(&fence); 192 193 r = radeon_bo_kmap(gtt_obj[i], >t_map); 194 if (r) { 195 DRM_ERROR("Failed to map GTT object after copy %d\n", i); 196 goto out_lclean_unpin; 197 } 198 199 for (gtt_start = gtt_map, gtt_end = gtt_map + size, 200 vram_start = vram_map, vram_end = vram_map + size; 201 gtt_start < gtt_end; 202 gtt_start++, vram_start++) { 203 if (*gtt_start != vram_start) { 204 DRM_ERROR("Incorrect VRAM->GTT copy %d: Got 0x%p, " 205 "expected 0x%p (VRAM/GTT offset " 206 "0x%16llx/0x%16llx)\n", 207 i, *gtt_start, vram_start, 208 (unsigned long long) 209 (vram_addr - rdev->mc.vram_start + 210 (void*)vram_start - vram_map), 211 (unsigned long long) 212 (gtt_addr - rdev->mc.gtt_start + 213 (void*)vram_start - vram_map)); 214 radeon_bo_kunmap(gtt_obj[i]); 215 goto out_lclean_unpin; 216 } 217 } 218 219 radeon_bo_kunmap(gtt_obj[i]); 220 221 DRM_INFO("Tested GTT->VRAM and VRAM->GTT copy for GTT offset 0x%llx\n", 222 gtt_addr - rdev->mc.gtt_start); 223 continue; 224 225 out_lclean_unpin: 226 radeon_bo_unpin(gtt_obj[i]); 227 out_lclean_unres: 228 radeon_bo_unreserve(gtt_obj[i]); 229 out_lclean_unref: 230 radeon_bo_unref(>t_obj[i]); 231 out_lclean: 232 for (--i; i >= 0; --i) { 233 radeon_bo_unpin(gtt_obj[i]); 234 radeon_bo_unreserve(gtt_obj[i]); 235 radeon_bo_unref(>t_obj[i]); 236 } 237 if (fence && !IS_ERR(fence)) 238 radeon_fence_unref(&fence); 239 break; 240 } 241 242 radeon_bo_unpin(vram_obj); 243 out_unres: 244 radeon_bo_unreserve(vram_obj); 245 out_unref: 246 radeon_bo_unref(&vram_obj); 247 out_cleanup: 248 kfree(gtt_obj); 249 if (r) { 250 pr_warn("Error while testing BO move\n"); 251 } 252 } 253 254 void radeon_test_moves(struct radeon_device *rdev) 255 { 256 if (rdev->asic->copy.dma) 257 radeon_do_test_moves(rdev, RADEON_TEST_COPY_DMA); 258 if (rdev->asic->copy.blit) 259 radeon_do_test_moves(rdev, RADEON_TEST_COPY_BLIT); 260 } 261 262 static int radeon_test_create_and_emit_fence(struct radeon_device *rdev, 263 struct radeon_ring *ring, 264 struct radeon_fence **fence) 265 { 266 uint32_t handle = ring->idx ^ 0xdeafbeef; 267 int r; 268 269 if (ring->idx == R600_RING_TYPE_UVD_INDEX) { 270 r = radeon_uvd_get_create_msg(rdev, ring->idx, handle, NULL); 271 if (r) { 272 DRM_ERROR("Failed to get dummy create msg\n"); 273 return r; 274 } 275 276 r = radeon_uvd_get_destroy_msg(rdev, ring->idx, handle, fence); 277 if (r) { 278 DRM_ERROR("Failed to get dummy destroy msg\n"); 279 return r; 280 } 281 282 } else if (ring->idx == TN_RING_TYPE_VCE1_INDEX || 283 ring->idx == TN_RING_TYPE_VCE2_INDEX) { 284 r = radeon_vce_get_create_msg(rdev, ring->idx, handle, NULL); 285 if (r) { 286 DRM_ERROR("Failed to get dummy create msg\n"); 287 return r; 288 } 289 290 r = radeon_vce_get_destroy_msg(rdev, ring->idx, handle, fence); 291 if (r) { 292 DRM_ERROR("Failed to get dummy destroy msg\n"); 293 return r; 294 } 295 296 } else { 297 r = radeon_ring_lock(rdev, ring, 64); 298 if (r) { 299 DRM_ERROR("Failed to lock ring A %d\n", ring->idx); 300 return r; 301 } 302 r = radeon_fence_emit(rdev, fence, ring->idx); 303 if (r) { 304 DRM_ERROR("Failed to emit fence\n"); 305 radeon_ring_unlock_undo(rdev, ring); 306 return r; 307 } 308 radeon_ring_unlock_commit(rdev, ring, false); 309 } 310 return 0; 311 } 312 313 void radeon_test_ring_sync(struct radeon_device *rdev, 314 struct radeon_ring *ringA, 315 struct radeon_ring *ringB) 316 { 317 struct radeon_fence *fence1 = NULL, *fence2 = NULL; 318 struct radeon_semaphore *semaphore = NULL; 319 int r; 320 321 r = radeon_semaphore_create(rdev, &semaphore); 322 if (r) { 323 DRM_ERROR("Failed to create semaphore\n"); 324 goto out_cleanup; 325 } 326 327 r = radeon_ring_lock(rdev, ringA, 64); 328 if (r) { 329 DRM_ERROR("Failed to lock ring A %d\n", ringA->idx); 330 goto out_cleanup; 331 } 332 radeon_semaphore_emit_wait(rdev, ringA->idx, semaphore); 333 radeon_ring_unlock_commit(rdev, ringA, false); 334 335 r = radeon_test_create_and_emit_fence(rdev, ringA, &fence1); 336 if (r) 337 goto out_cleanup; 338 339 r = radeon_ring_lock(rdev, ringA, 64); 340 if (r) { 341 DRM_ERROR("Failed to lock ring A %d\n", ringA->idx); 342 goto out_cleanup; 343 } 344 radeon_semaphore_emit_wait(rdev, ringA->idx, semaphore); 345 radeon_ring_unlock_commit(rdev, ringA, false); 346 347 r = radeon_test_create_and_emit_fence(rdev, ringA, &fence2); 348 if (r) 349 goto out_cleanup; 350 351 mdelay(1000); 352 353 if (radeon_fence_signaled(fence1)) { 354 DRM_ERROR("Fence 1 signaled without waiting for semaphore.\n"); 355 goto out_cleanup; 356 } 357 358 r = radeon_ring_lock(rdev, ringB, 64); 359 if (r) { 360 DRM_ERROR("Failed to lock ring B %p\n", ringB); 361 goto out_cleanup; 362 } 363 radeon_semaphore_emit_signal(rdev, ringB->idx, semaphore); 364 radeon_ring_unlock_commit(rdev, ringB, false); 365 366 r = radeon_fence_wait(fence1, false); 367 if (r) { 368 DRM_ERROR("Failed to wait for sync fence 1\n"); 369 goto out_cleanup; 370 } 371 372 mdelay(1000); 373 374 if (radeon_fence_signaled(fence2)) { 375 DRM_ERROR("Fence 2 signaled without waiting for semaphore.\n"); 376 goto out_cleanup; 377 } 378 379 r = radeon_ring_lock(rdev, ringB, 64); 380 if (r) { 381 DRM_ERROR("Failed to lock ring B %p\n", ringB); 382 goto out_cleanup; 383 } 384 radeon_semaphore_emit_signal(rdev, ringB->idx, semaphore); 385 radeon_ring_unlock_commit(rdev, ringB, false); 386 387 r = radeon_fence_wait(fence2, false); 388 if (r) { 389 DRM_ERROR("Failed to wait for sync fence 1\n"); 390 goto out_cleanup; 391 } 392 393 out_cleanup: 394 radeon_semaphore_free(rdev, &semaphore, NULL); 395 396 if (fence1) 397 radeon_fence_unref(&fence1); 398 399 if (fence2) 400 radeon_fence_unref(&fence2); 401 402 if (r) 403 pr_warn("Error while testing ring sync (%d)\n", r); 404 } 405 406 static void radeon_test_ring_sync2(struct radeon_device *rdev, 407 struct radeon_ring *ringA, 408 struct radeon_ring *ringB, 409 struct radeon_ring *ringC) 410 { 411 struct radeon_fence *fenceA = NULL, *fenceB = NULL; 412 struct radeon_semaphore *semaphore = NULL; 413 bool sigA, sigB; 414 int i, r; 415 416 r = radeon_semaphore_create(rdev, &semaphore); 417 if (r) { 418 DRM_ERROR("Failed to create semaphore\n"); 419 goto out_cleanup; 420 } 421 422 r = radeon_ring_lock(rdev, ringA, 64); 423 if (r) { 424 DRM_ERROR("Failed to lock ring A %d\n", ringA->idx); 425 goto out_cleanup; 426 } 427 radeon_semaphore_emit_wait(rdev, ringA->idx, semaphore); 428 radeon_ring_unlock_commit(rdev, ringA, false); 429 430 r = radeon_test_create_and_emit_fence(rdev, ringA, &fenceA); 431 if (r) 432 goto out_cleanup; 433 434 r = radeon_ring_lock(rdev, ringB, 64); 435 if (r) { 436 DRM_ERROR("Failed to lock ring B %d\n", ringB->idx); 437 goto out_cleanup; 438 } 439 radeon_semaphore_emit_wait(rdev, ringB->idx, semaphore); 440 radeon_ring_unlock_commit(rdev, ringB, false); 441 r = radeon_test_create_and_emit_fence(rdev, ringB, &fenceB); 442 if (r) 443 goto out_cleanup; 444 445 mdelay(1000); 446 447 if (radeon_fence_signaled(fenceA)) { 448 DRM_ERROR("Fence A signaled without waiting for semaphore.\n"); 449 goto out_cleanup; 450 } 451 if (radeon_fence_signaled(fenceB)) { 452 DRM_ERROR("Fence B signaled without waiting for semaphore.\n"); 453 goto out_cleanup; 454 } 455 456 r = radeon_ring_lock(rdev, ringC, 64); 457 if (r) { 458 DRM_ERROR("Failed to lock ring B %p\n", ringC); 459 goto out_cleanup; 460 } 461 radeon_semaphore_emit_signal(rdev, ringC->idx, semaphore); 462 radeon_ring_unlock_commit(rdev, ringC, false); 463 464 for (i = 0; i < 30; ++i) { 465 mdelay(100); 466 sigA = radeon_fence_signaled(fenceA); 467 sigB = radeon_fence_signaled(fenceB); 468 if (sigA || sigB) 469 break; 470 } 471 472 if (!sigA && !sigB) { 473 DRM_ERROR("Neither fence A nor B has been signaled\n"); 474 goto out_cleanup; 475 } else if (sigA && sigB) { 476 DRM_ERROR("Both fence A and B has been signaled\n"); 477 goto out_cleanup; 478 } 479 480 DRM_INFO("Fence %c was first signaled\n", sigA ? 'A' : 'B'); 481 482 r = radeon_ring_lock(rdev, ringC, 64); 483 if (r) { 484 DRM_ERROR("Failed to lock ring B %p\n", ringC); 485 goto out_cleanup; 486 } 487 radeon_semaphore_emit_signal(rdev, ringC->idx, semaphore); 488 radeon_ring_unlock_commit(rdev, ringC, false); 489 490 mdelay(1000); 491 492 r = radeon_fence_wait(fenceA, false); 493 if (r) { 494 DRM_ERROR("Failed to wait for sync fence A\n"); 495 goto out_cleanup; 496 } 497 r = radeon_fence_wait(fenceB, false); 498 if (r) { 499 DRM_ERROR("Failed to wait for sync fence B\n"); 500 goto out_cleanup; 501 } 502 503 out_cleanup: 504 radeon_semaphore_free(rdev, &semaphore, NULL); 505 506 if (fenceA) 507 radeon_fence_unref(&fenceA); 508 509 if (fenceB) 510 radeon_fence_unref(&fenceB); 511 512 if (r) 513 pr_warn("Error while testing ring sync (%d)\n", r); 514 } 515 516 static bool radeon_test_sync_possible(struct radeon_ring *ringA, 517 struct radeon_ring *ringB) 518 { 519 if (ringA->idx == TN_RING_TYPE_VCE2_INDEX && 520 ringB->idx == TN_RING_TYPE_VCE1_INDEX) 521 return false; 522 523 return true; 524 } 525 526 void radeon_test_syncing(struct radeon_device *rdev) 527 { 528 int i, j, k; 529 530 for (i = 1; i < RADEON_NUM_RINGS; ++i) { 531 struct radeon_ring *ringA = &rdev->ring[i]; 532 if (!ringA->ready) 533 continue; 534 535 for (j = 0; j < i; ++j) { 536 struct radeon_ring *ringB = &rdev->ring[j]; 537 if (!ringB->ready) 538 continue; 539 540 if (!radeon_test_sync_possible(ringA, ringB)) 541 continue; 542 543 DRM_INFO("Testing syncing between rings %d and %d...\n", i, j); 544 radeon_test_ring_sync(rdev, ringA, ringB); 545 546 DRM_INFO("Testing syncing between rings %d and %d...\n", j, i); 547 radeon_test_ring_sync(rdev, ringB, ringA); 548 549 for (k = 0; k < j; ++k) { 550 struct radeon_ring *ringC = &rdev->ring[k]; 551 if (!ringC->ready) 552 continue; 553 554 if (!radeon_test_sync_possible(ringA, ringC)) 555 continue; 556 557 if (!radeon_test_sync_possible(ringB, ringC)) 558 continue; 559 560 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", i, j, k); 561 radeon_test_ring_sync2(rdev, ringA, ringB, ringC); 562 563 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", i, k, j); 564 radeon_test_ring_sync2(rdev, ringA, ringC, ringB); 565 566 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", j, i, k); 567 radeon_test_ring_sync2(rdev, ringB, ringA, ringC); 568 569 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", j, k, i); 570 radeon_test_ring_sync2(rdev, ringB, ringC, ringA); 571 572 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", k, i, j); 573 radeon_test_ring_sync2(rdev, ringC, ringA, ringB); 574 575 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", k, j, i); 576 radeon_test_ring_sync2(rdev, ringC, ringB, ringA); 577 } 578 } 579 } 580 } 581