1 /* $OpenBSD: radeon_test.c,v 1.6 2018/04/20 16:09:37 deraadt Exp $ */ 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 <dev/pci/drm/drmP.h> 26 #include <dev/pci/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 struct radeon_fence *fence = NULL; 40 uint64_t gtt_addr, vram_addr; 41 unsigned n, size; 42 int i, r, ring; 43 44 switch (flag) { 45 case RADEON_TEST_COPY_DMA: 46 ring = radeon_copy_dma_ring_index(rdev); 47 break; 48 case RADEON_TEST_COPY_BLIT: 49 ring = radeon_copy_blit_ring_index(rdev); 50 break; 51 default: 52 DRM_ERROR("Unknown copy method\n"); 53 return; 54 } 55 56 size = 1024 * 1024; 57 58 /* Number of tests = 59 * (Total GTT - IB pool - writeback page - ring buffers) / test size 60 */ 61 n = rdev->mc.gtt_size - RADEON_IB_POOL_SIZE*64*1024; 62 for (i = 0; i < RADEON_NUM_RINGS; ++i) 63 n -= rdev->ring[i].ring_size; 64 if (rdev->wb.wb_obj) 65 n -= RADEON_GPU_PAGE_SIZE; 66 if (rdev->ih.ring_obj) 67 n -= rdev->ih.ring_size; 68 n /= size; 69 70 gtt_obj = kzalloc(n * sizeof(*gtt_obj), GFP_KERNEL); 71 if (!gtt_obj) { 72 DRM_ERROR("Failed to allocate %d pointers\n", n); 73 r = 1; 74 goto out_cleanup; 75 } 76 77 r = radeon_bo_create(rdev, size, PAGE_SIZE, true, RADEON_GEM_DOMAIN_VRAM, 78 NULL, &vram_obj); 79 if (r) { 80 DRM_ERROR("Failed to create VRAM object\n"); 81 goto out_cleanup; 82 } 83 r = radeon_bo_reserve(vram_obj, false); 84 if (unlikely(r != 0)) 85 goto out_cleanup; 86 r = radeon_bo_pin(vram_obj, RADEON_GEM_DOMAIN_VRAM, &vram_addr); 87 if (r) { 88 DRM_ERROR("Failed to pin VRAM object\n"); 89 goto out_cleanup; 90 } 91 for (i = 0; i < n; i++) { 92 void *gtt_map, *vram_map; 93 void **gtt_start, **gtt_end; 94 void **vram_start, **vram_end; 95 96 r = radeon_bo_create(rdev, size, PAGE_SIZE, true, 97 RADEON_GEM_DOMAIN_GTT, NULL, gtt_obj + i); 98 if (r) { 99 DRM_ERROR("Failed to create GTT object %d\n", i); 100 goto out_cleanup; 101 } 102 103 r = radeon_bo_reserve(gtt_obj[i], false); 104 if (unlikely(r != 0)) 105 goto out_cleanup; 106 r = radeon_bo_pin(gtt_obj[i], RADEON_GEM_DOMAIN_GTT, >t_addr); 107 if (r) { 108 DRM_ERROR("Failed to pin GTT object %d\n", i); 109 goto out_cleanup; 110 } 111 112 r = radeon_bo_kmap(gtt_obj[i], >t_map); 113 if (r) { 114 DRM_ERROR("Failed to map GTT object %d\n", i); 115 goto out_cleanup; 116 } 117 118 for (gtt_start = gtt_map, gtt_end = gtt_map + size; 119 gtt_start < gtt_end; 120 gtt_start++) 121 *gtt_start = gtt_start; 122 123 radeon_bo_kunmap(gtt_obj[i]); 124 125 if (ring == R600_RING_TYPE_DMA_INDEX) 126 r = radeon_copy_dma(rdev, gtt_addr, vram_addr, size / RADEON_GPU_PAGE_SIZE, &fence); 127 else 128 r = radeon_copy_blit(rdev, gtt_addr, vram_addr, size / RADEON_GPU_PAGE_SIZE, &fence); 129 if (r) { 130 DRM_ERROR("Failed GTT->VRAM copy %d\n", i); 131 goto out_cleanup; 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_cleanup; 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_cleanup; 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_cleanup; 165 } 166 *vram_start = vram_start; 167 } 168 169 radeon_bo_kunmap(vram_obj); 170 171 if (ring == R600_RING_TYPE_DMA_INDEX) 172 r = radeon_copy_dma(rdev, vram_addr, gtt_addr, size / RADEON_GPU_PAGE_SIZE, &fence); 173 else 174 r = radeon_copy_blit(rdev, vram_addr, gtt_addr, size / RADEON_GPU_PAGE_SIZE, &fence); 175 if (r) { 176 DRM_ERROR("Failed VRAM->GTT copy %d\n", i); 177 goto out_cleanup; 178 } 179 180 r = radeon_fence_wait(fence, false); 181 if (r) { 182 DRM_ERROR("Failed to wait for VRAM->GTT fence %d\n", i); 183 goto out_cleanup; 184 } 185 186 radeon_fence_unref(&fence); 187 188 r = radeon_bo_kmap(gtt_obj[i], >t_map); 189 if (r) { 190 DRM_ERROR("Failed to map GTT object after copy %d\n", i); 191 goto out_cleanup; 192 } 193 194 for (gtt_start = gtt_map, gtt_end = gtt_map + size, 195 vram_start = vram_map, vram_end = vram_map + size; 196 gtt_start < gtt_end; 197 gtt_start++, vram_start++) { 198 if (*gtt_start != vram_start) { 199 DRM_ERROR("Incorrect VRAM->GTT copy %d: Got 0x%p, " 200 "expected 0x%p (VRAM/GTT offset " 201 "0x%16llx/0x%16llx)\n", 202 i, *gtt_start, vram_start, 203 (unsigned long long) 204 (vram_addr - rdev->mc.vram_start + 205 (void*)vram_start - vram_map), 206 (unsigned long long) 207 (gtt_addr - rdev->mc.gtt_start + 208 (void*)vram_start - vram_map)); 209 radeon_bo_kunmap(gtt_obj[i]); 210 goto out_cleanup; 211 } 212 } 213 214 radeon_bo_kunmap(gtt_obj[i]); 215 216 DRM_INFO("Tested GTT->VRAM and VRAM->GTT copy for GTT offset 0x%llx\n", 217 gtt_addr - rdev->mc.gtt_start); 218 } 219 220 out_cleanup: 221 if (vram_obj) { 222 if (radeon_bo_is_reserved(vram_obj)) { 223 radeon_bo_unpin(vram_obj); 224 radeon_bo_unreserve(vram_obj); 225 } 226 radeon_bo_unref(&vram_obj); 227 } 228 if (gtt_obj) { 229 for (i = 0; i < n; i++) { 230 if (gtt_obj[i]) { 231 if (radeon_bo_is_reserved(gtt_obj[i])) { 232 radeon_bo_unpin(gtt_obj[i]); 233 radeon_bo_unreserve(gtt_obj[i]); 234 } 235 radeon_bo_unref(>t_obj[i]); 236 } 237 } 238 kfree(gtt_obj); 239 } 240 if (fence) { 241 radeon_fence_unref(&fence); 242 } 243 if (r) { 244 printk(KERN_WARNING "Error while testing BO move.\n"); 245 } 246 } 247 248 void radeon_test_moves(struct radeon_device *rdev) 249 { 250 if (rdev->asic->copy.dma) 251 radeon_do_test_moves(rdev, RADEON_TEST_COPY_DMA); 252 if (rdev->asic->copy.blit) 253 radeon_do_test_moves(rdev, RADEON_TEST_COPY_BLIT); 254 } 255 256 void radeon_test_ring_sync(struct radeon_device *rdev, 257 struct radeon_ring *ringA, 258 struct radeon_ring *ringB) 259 { 260 struct radeon_fence *fence1 = NULL, *fence2 = NULL; 261 struct radeon_semaphore *semaphore = NULL; 262 int r; 263 264 r = radeon_semaphore_create(rdev, &semaphore); 265 if (r) { 266 DRM_ERROR("Failed to create semaphore\n"); 267 goto out_cleanup; 268 } 269 270 r = radeon_ring_lock(rdev, ringA, 64); 271 if (r) { 272 DRM_ERROR("Failed to lock ring A %d\n", ringA->idx); 273 goto out_cleanup; 274 } 275 radeon_semaphore_emit_wait(rdev, ringA->idx, semaphore); 276 r = radeon_fence_emit(rdev, &fence1, ringA->idx); 277 if (r) { 278 DRM_ERROR("Failed to emit fence 1\n"); 279 radeon_ring_unlock_undo(rdev, ringA); 280 goto out_cleanup; 281 } 282 radeon_semaphore_emit_wait(rdev, ringA->idx, semaphore); 283 r = radeon_fence_emit(rdev, &fence2, ringA->idx); 284 if (r) { 285 DRM_ERROR("Failed to emit fence 2\n"); 286 radeon_ring_unlock_undo(rdev, ringA); 287 goto out_cleanup; 288 } 289 radeon_ring_unlock_commit(rdev, ringA); 290 291 mdelay(1000); 292 293 if (radeon_fence_signaled(fence1)) { 294 DRM_ERROR("Fence 1 signaled without waiting for semaphore.\n"); 295 goto out_cleanup; 296 } 297 298 r = radeon_ring_lock(rdev, ringB, 64); 299 if (r) { 300 DRM_ERROR("Failed to lock ring B %p\n", ringB); 301 goto out_cleanup; 302 } 303 radeon_semaphore_emit_signal(rdev, ringB->idx, semaphore); 304 radeon_ring_unlock_commit(rdev, ringB); 305 306 r = radeon_fence_wait(fence1, false); 307 if (r) { 308 DRM_ERROR("Failed to wait for sync fence 1\n"); 309 goto out_cleanup; 310 } 311 312 mdelay(1000); 313 314 if (radeon_fence_signaled(fence2)) { 315 DRM_ERROR("Fence 2 signaled without waiting for semaphore.\n"); 316 goto out_cleanup; 317 } 318 319 r = radeon_ring_lock(rdev, ringB, 64); 320 if (r) { 321 DRM_ERROR("Failed to lock ring B %p\n", ringB); 322 goto out_cleanup; 323 } 324 radeon_semaphore_emit_signal(rdev, ringB->idx, semaphore); 325 radeon_ring_unlock_commit(rdev, ringB); 326 327 r = radeon_fence_wait(fence2, false); 328 if (r) { 329 DRM_ERROR("Failed to wait for sync fence 1\n"); 330 goto out_cleanup; 331 } 332 333 out_cleanup: 334 radeon_semaphore_free(rdev, &semaphore, NULL); 335 336 if (fence1) 337 radeon_fence_unref(&fence1); 338 339 if (fence2) 340 radeon_fence_unref(&fence2); 341 342 if (r) 343 printk(KERN_WARNING "Error while testing ring sync (%d).\n", r); 344 } 345 346 static void radeon_test_ring_sync2(struct radeon_device *rdev, 347 struct radeon_ring *ringA, 348 struct radeon_ring *ringB, 349 struct radeon_ring *ringC) 350 { 351 struct radeon_fence *fenceA = NULL, *fenceB = NULL; 352 struct radeon_semaphore *semaphore = NULL; 353 bool sigA, sigB; 354 int i, r; 355 356 r = radeon_semaphore_create(rdev, &semaphore); 357 if (r) { 358 DRM_ERROR("Failed to create semaphore\n"); 359 goto out_cleanup; 360 } 361 362 r = radeon_ring_lock(rdev, ringA, 64); 363 if (r) { 364 DRM_ERROR("Failed to lock ring A %d\n", ringA->idx); 365 goto out_cleanup; 366 } 367 radeon_semaphore_emit_wait(rdev, ringA->idx, semaphore); 368 r = radeon_fence_emit(rdev, &fenceA, ringA->idx); 369 if (r) { 370 DRM_ERROR("Failed to emit sync fence 1\n"); 371 radeon_ring_unlock_undo(rdev, ringA); 372 goto out_cleanup; 373 } 374 radeon_ring_unlock_commit(rdev, ringA); 375 376 r = radeon_ring_lock(rdev, ringB, 64); 377 if (r) { 378 DRM_ERROR("Failed to lock ring B %d\n", ringB->idx); 379 goto out_cleanup; 380 } 381 radeon_semaphore_emit_wait(rdev, ringB->idx, semaphore); 382 r = radeon_fence_emit(rdev, &fenceB, ringB->idx); 383 if (r) { 384 DRM_ERROR("Failed to create sync fence 2\n"); 385 radeon_ring_unlock_undo(rdev, ringB); 386 goto out_cleanup; 387 } 388 radeon_ring_unlock_commit(rdev, ringB); 389 390 mdelay(1000); 391 392 if (radeon_fence_signaled(fenceA)) { 393 DRM_ERROR("Fence A signaled without waiting for semaphore.\n"); 394 goto out_cleanup; 395 } 396 if (radeon_fence_signaled(fenceB)) { 397 DRM_ERROR("Fence A signaled without waiting for semaphore.\n"); 398 goto out_cleanup; 399 } 400 401 r = radeon_ring_lock(rdev, ringC, 64); 402 if (r) { 403 DRM_ERROR("Failed to lock ring B %p\n", ringC); 404 goto out_cleanup; 405 } 406 radeon_semaphore_emit_signal(rdev, ringC->idx, semaphore); 407 radeon_ring_unlock_commit(rdev, ringC); 408 409 for (i = 0; i < 30; ++i) { 410 mdelay(100); 411 sigA = radeon_fence_signaled(fenceA); 412 sigB = radeon_fence_signaled(fenceB); 413 if (sigA || sigB) 414 break; 415 } 416 417 if (!sigA && !sigB) { 418 DRM_ERROR("Neither fence A nor B has been signaled\n"); 419 goto out_cleanup; 420 } else if (sigA && sigB) { 421 DRM_ERROR("Both fence A and B has been signaled\n"); 422 goto out_cleanup; 423 } 424 425 DRM_INFO("Fence %c was first signaled\n", sigA ? 'A' : 'B'); 426 427 r = radeon_ring_lock(rdev, ringC, 64); 428 if (r) { 429 DRM_ERROR("Failed to lock ring B %p\n", ringC); 430 goto out_cleanup; 431 } 432 radeon_semaphore_emit_signal(rdev, ringC->idx, semaphore); 433 radeon_ring_unlock_commit(rdev, ringC); 434 435 mdelay(1000); 436 437 r = radeon_fence_wait(fenceA, false); 438 if (r) { 439 DRM_ERROR("Failed to wait for sync fence A\n"); 440 goto out_cleanup; 441 } 442 r = radeon_fence_wait(fenceB, false); 443 if (r) { 444 DRM_ERROR("Failed to wait for sync fence B\n"); 445 goto out_cleanup; 446 } 447 448 out_cleanup: 449 radeon_semaphore_free(rdev, &semaphore, NULL); 450 451 if (fenceA) 452 radeon_fence_unref(&fenceA); 453 454 if (fenceB) 455 radeon_fence_unref(&fenceB); 456 457 if (r) 458 printk(KERN_WARNING "Error while testing ring sync (%d).\n", r); 459 } 460 461 void radeon_test_syncing(struct radeon_device *rdev) 462 { 463 int i, j, k; 464 465 for (i = 1; i < RADEON_NUM_RINGS; ++i) { 466 struct radeon_ring *ringA = &rdev->ring[i]; 467 if (!ringA->ready) 468 continue; 469 470 for (j = 0; j < i; ++j) { 471 struct radeon_ring *ringB = &rdev->ring[j]; 472 if (!ringB->ready) 473 continue; 474 475 DRM_INFO("Testing syncing between rings %d and %d...\n", i, j); 476 radeon_test_ring_sync(rdev, ringA, ringB); 477 478 DRM_INFO("Testing syncing between rings %d and %d...\n", j, i); 479 radeon_test_ring_sync(rdev, ringB, ringA); 480 481 for (k = 0; k < j; ++k) { 482 struct radeon_ring *ringC = &rdev->ring[k]; 483 if (!ringC->ready) 484 continue; 485 486 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", i, j, k); 487 radeon_test_ring_sync2(rdev, ringA, ringB, ringC); 488 489 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", i, k, j); 490 radeon_test_ring_sync2(rdev, ringA, ringC, ringB); 491 492 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", j, i, k); 493 radeon_test_ring_sync2(rdev, ringB, ringA, ringC); 494 495 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", j, k, i); 496 radeon_test_ring_sync2(rdev, ringB, ringC, ringA); 497 498 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", k, i, j); 499 radeon_test_ring_sync2(rdev, ringC, ringA, ringB); 500 501 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", k, j, i); 502 radeon_test_ring_sync2(rdev, ringC, ringB, ringA); 503 } 504 } 505 } 506 } 507