1 /* 2 * Copyright © 2016 Intel Corporation 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 (including the next 12 * paragraph) shall be included in all copies or substantial portions of the 13 * 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 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 21 * IN THE SOFTWARE. 22 * 23 */ 24 25 #include <linux/prime_numbers.h> 26 27 #include "../i915_selftest.h" 28 29 #include "mock_gem_device.h" 30 #include "mock_context.h" 31 32 static bool assert_vma(struct i915_vma *vma, 33 struct drm_i915_gem_object *obj, 34 struct i915_gem_context *ctx) 35 { 36 bool ok = true; 37 38 if (vma->vm != &ctx->ppgtt->base) { 39 pr_err("VMA created with wrong VM\n"); 40 ok = false; 41 } 42 43 if (vma->size != obj->base.size) { 44 pr_err("VMA created with wrong size, found %llu, expected %zu\n", 45 vma->size, obj->base.size); 46 ok = false; 47 } 48 49 if (vma->ggtt_view.type != I915_GGTT_VIEW_NORMAL) { 50 pr_err("VMA created with wrong type [%d]\n", 51 vma->ggtt_view.type); 52 ok = false; 53 } 54 55 return ok; 56 } 57 58 static struct i915_vma * 59 checked_vma_instance(struct drm_i915_gem_object *obj, 60 struct i915_address_space *vm, 61 struct i915_ggtt_view *view) 62 { 63 struct i915_vma *vma; 64 bool ok = true; 65 66 vma = i915_vma_instance(obj, vm, view); 67 if (IS_ERR(vma)) 68 return vma; 69 70 /* Manual checks, will be reinforced by i915_vma_compare! */ 71 if (vma->vm != vm) { 72 pr_err("VMA's vm [%p] does not match request [%p]\n", 73 vma->vm, vm); 74 ok = false; 75 } 76 77 if (i915_is_ggtt(vm) != i915_vma_is_ggtt(vma)) { 78 pr_err("VMA ggtt status [%d] does not match parent [%d]\n", 79 i915_vma_is_ggtt(vma), i915_is_ggtt(vm)); 80 ok = false; 81 } 82 83 if (i915_vma_compare(vma, vm, view)) { 84 pr_err("i915_vma_compare failed with create parmaters!\n"); 85 return ERR_PTR(-EINVAL); 86 } 87 88 if (i915_vma_compare(vma, vma->vm, 89 i915_vma_is_ggtt(vma) ? &vma->ggtt_view : NULL)) { 90 pr_err("i915_vma_compare failed with itself\n"); 91 return ERR_PTR(-EINVAL); 92 } 93 94 if (!ok) { 95 pr_err("i915_vma_compare failed to detect the difference!\n"); 96 return ERR_PTR(-EINVAL); 97 } 98 99 return vma; 100 } 101 102 static int create_vmas(struct drm_i915_private *i915, 103 struct list_head *objects, 104 struct list_head *contexts) 105 { 106 struct drm_i915_gem_object *obj; 107 struct i915_gem_context *ctx; 108 int pinned; 109 110 list_for_each_entry(obj, objects, st_link) { 111 for (pinned = 0; pinned <= 1; pinned++) { 112 list_for_each_entry(ctx, contexts, link) { 113 struct i915_address_space *vm = 114 &ctx->ppgtt->base; 115 struct i915_vma *vma; 116 int err; 117 118 vma = checked_vma_instance(obj, vm, NULL); 119 if (IS_ERR(vma)) 120 return PTR_ERR(vma); 121 122 if (!assert_vma(vma, obj, ctx)) { 123 pr_err("VMA lookup/create failed\n"); 124 return -EINVAL; 125 } 126 127 if (!pinned) { 128 err = i915_vma_pin(vma, 0, 0, PIN_USER); 129 if (err) { 130 pr_err("Failed to pin VMA\n"); 131 return err; 132 } 133 } else { 134 i915_vma_unpin(vma); 135 } 136 } 137 } 138 } 139 140 return 0; 141 } 142 143 static int igt_vma_create(void *arg) 144 { 145 struct drm_i915_private *i915 = arg; 146 struct drm_i915_gem_object *obj, *on; 147 struct i915_gem_context *ctx, *cn; 148 unsigned long num_obj, num_ctx; 149 unsigned long no, nc; 150 IGT_TIMEOUT(end_time); 151 LIST_HEAD(contexts); 152 LIST_HEAD(objects); 153 int err; 154 155 /* Exercise creating many vma amonst many objections, checking the 156 * vma creation and lookup routines. 157 */ 158 159 no = 0; 160 for_each_prime_number(num_obj, ULONG_MAX - 1) { 161 for (; no < num_obj; no++) { 162 obj = i915_gem_object_create_internal(i915, PAGE_SIZE); 163 if (IS_ERR(obj)) 164 goto out; 165 166 list_add(&obj->st_link, &objects); 167 } 168 169 nc = 0; 170 for_each_prime_number(num_ctx, MAX_CONTEXT_HW_ID) { 171 for (; nc < num_ctx; nc++) { 172 ctx = mock_context(i915, "mock"); 173 if (!ctx) 174 goto out; 175 176 list_move(&ctx->link, &contexts); 177 } 178 179 err = create_vmas(i915, &objects, &contexts); 180 if (err) 181 goto out; 182 183 if (igt_timeout(end_time, 184 "%s timed out: after %lu objects in %lu contexts\n", 185 __func__, no, nc)) 186 goto end; 187 } 188 189 list_for_each_entry_safe(ctx, cn, &contexts, link) 190 mock_context_close(ctx); 191 } 192 193 end: 194 /* Final pass to lookup all created contexts */ 195 err = create_vmas(i915, &objects, &contexts); 196 out: 197 list_for_each_entry_safe(ctx, cn, &contexts, link) 198 mock_context_close(ctx); 199 200 list_for_each_entry_safe(obj, on, &objects, st_link) 201 i915_gem_object_put(obj); 202 return err; 203 } 204 205 struct pin_mode { 206 u64 size; 207 u64 flags; 208 bool (*assert)(const struct i915_vma *, 209 const struct pin_mode *mode, 210 int result); 211 const char *string; 212 }; 213 214 static bool assert_pin_valid(const struct i915_vma *vma, 215 const struct pin_mode *mode, 216 int result) 217 { 218 if (result) 219 return false; 220 221 if (i915_vma_misplaced(vma, mode->size, 0, mode->flags)) 222 return false; 223 224 return true; 225 } 226 227 __maybe_unused 228 static bool assert_pin_enospc(const struct i915_vma *vma, 229 const struct pin_mode *mode, 230 int result) 231 { 232 return result == -ENOSPC; 233 } 234 235 __maybe_unused 236 static bool assert_pin_einval(const struct i915_vma *vma, 237 const struct pin_mode *mode, 238 int result) 239 { 240 return result == -EINVAL; 241 } 242 243 static int igt_vma_pin1(void *arg) 244 { 245 struct drm_i915_private *i915 = arg; 246 const struct pin_mode modes[] = { 247 #define VALID(sz, fl) { .size = (sz), .flags = (fl), .assert = assert_pin_valid, .string = #sz ", " #fl ", (valid) " } 248 #define __INVALID(sz, fl, check, eval) { .size = (sz), .flags = (fl), .assert = (check), .string = #sz ", " #fl ", (invalid " #eval ")" } 249 #define INVALID(sz, fl) __INVALID(sz, fl, assert_pin_einval, EINVAL) 250 #define NOSPACE(sz, fl) __INVALID(sz, fl, assert_pin_enospc, ENOSPC) 251 VALID(0, PIN_GLOBAL), 252 VALID(0, PIN_GLOBAL | PIN_MAPPABLE), 253 254 VALID(0, PIN_GLOBAL | PIN_OFFSET_BIAS | 4096), 255 VALID(0, PIN_GLOBAL | PIN_OFFSET_BIAS | 8192), 256 VALID(0, PIN_GLOBAL | PIN_OFFSET_BIAS | (i915->ggtt.mappable_end - 4096)), 257 VALID(0, PIN_GLOBAL | PIN_MAPPABLE | PIN_OFFSET_BIAS | (i915->ggtt.mappable_end - 4096)), 258 VALID(0, PIN_GLOBAL | PIN_OFFSET_BIAS | (i915->ggtt.base.total - 4096)), 259 260 VALID(0, PIN_GLOBAL | PIN_MAPPABLE | PIN_OFFSET_FIXED | (i915->ggtt.mappable_end - 4096)), 261 INVALID(0, PIN_GLOBAL | PIN_MAPPABLE | PIN_OFFSET_FIXED | i915->ggtt.mappable_end), 262 VALID(0, PIN_GLOBAL | PIN_OFFSET_FIXED | (i915->ggtt.base.total - 4096)), 263 INVALID(0, PIN_GLOBAL | PIN_OFFSET_FIXED | i915->ggtt.base.total), 264 INVALID(0, PIN_GLOBAL | PIN_OFFSET_FIXED | round_down(U64_MAX, PAGE_SIZE)), 265 266 VALID(4096, PIN_GLOBAL), 267 VALID(8192, PIN_GLOBAL), 268 VALID(i915->ggtt.mappable_end - 4096, PIN_GLOBAL | PIN_MAPPABLE), 269 VALID(i915->ggtt.mappable_end, PIN_GLOBAL | PIN_MAPPABLE), 270 NOSPACE(i915->ggtt.mappable_end + 4096, PIN_GLOBAL | PIN_MAPPABLE), 271 VALID(i915->ggtt.base.total - 4096, PIN_GLOBAL), 272 VALID(i915->ggtt.base.total, PIN_GLOBAL), 273 NOSPACE(i915->ggtt.base.total + 4096, PIN_GLOBAL), 274 NOSPACE(round_down(U64_MAX, PAGE_SIZE), PIN_GLOBAL), 275 INVALID(8192, PIN_GLOBAL | PIN_MAPPABLE | PIN_OFFSET_FIXED | (i915->ggtt.mappable_end - 4096)), 276 INVALID(8192, PIN_GLOBAL | PIN_OFFSET_FIXED | (i915->ggtt.base.total - 4096)), 277 INVALID(8192, PIN_GLOBAL | PIN_OFFSET_FIXED | (round_down(U64_MAX, PAGE_SIZE) - 4096)), 278 279 VALID(8192, PIN_GLOBAL | PIN_OFFSET_BIAS | (i915->ggtt.mappable_end - 4096)), 280 281 #if !IS_ENABLED(CONFIG_DRM_I915_DEBUG_GEM) 282 /* Misusing BIAS is a programming error (it is not controllable 283 * from userspace) so when debugging is enabled, it explodes. 284 * However, the tests are still quite interesting for checking 285 * variable start, end and size. 286 */ 287 NOSPACE(0, PIN_GLOBAL | PIN_MAPPABLE | PIN_OFFSET_BIAS | i915->ggtt.mappable_end), 288 NOSPACE(0, PIN_GLOBAL | PIN_OFFSET_BIAS | i915->ggtt.base.total), 289 NOSPACE(8192, PIN_GLOBAL | PIN_MAPPABLE | PIN_OFFSET_BIAS | (i915->ggtt.mappable_end - 4096)), 290 NOSPACE(8192, PIN_GLOBAL | PIN_OFFSET_BIAS | (i915->ggtt.base.total - 4096)), 291 #endif 292 { }, 293 #undef NOSPACE 294 #undef INVALID 295 #undef __INVALID 296 #undef VALID 297 }, *m; 298 struct drm_i915_gem_object *obj; 299 struct i915_vma *vma; 300 int err = -EINVAL; 301 302 /* Exercise all the weird and wonderful i915_vma_pin requests, 303 * focusing on error handling of boundary conditions. 304 */ 305 306 GEM_BUG_ON(!drm_mm_clean(&i915->ggtt.base.mm)); 307 308 obj = i915_gem_object_create_internal(i915, PAGE_SIZE); 309 if (IS_ERR(obj)) 310 return PTR_ERR(obj); 311 312 vma = checked_vma_instance(obj, &i915->ggtt.base, NULL); 313 if (IS_ERR(vma)) 314 goto out; 315 316 for (m = modes; m->assert; m++) { 317 err = i915_vma_pin(vma, m->size, 0, m->flags); 318 if (!m->assert(vma, m, err)) { 319 pr_err("%s to pin single page into GGTT with mode[%d:%s]: size=%llx flags=%llx, err=%d\n", 320 m->assert == assert_pin_valid ? "Failed" : "Unexpectedly succeeded", 321 (int)(m - modes), m->string, m->size, m->flags, 322 err); 323 if (!err) 324 i915_vma_unpin(vma); 325 err = -EINVAL; 326 goto out; 327 } 328 329 if (!err) { 330 i915_vma_unpin(vma); 331 err = i915_vma_unbind(vma); 332 if (err) { 333 pr_err("Failed to unbind single page from GGTT, err=%d\n", err); 334 goto out; 335 } 336 } 337 } 338 339 err = 0; 340 out: 341 i915_gem_object_put(obj); 342 return err; 343 } 344 345 static unsigned long rotated_index(const struct intel_rotation_info *r, 346 unsigned int n, 347 unsigned int x, 348 unsigned int y) 349 { 350 return (r->plane[n].stride * (r->plane[n].height - y - 1) + 351 r->plane[n].offset + x); 352 } 353 354 static struct scatterlist * 355 assert_rotated(struct drm_i915_gem_object *obj, 356 const struct intel_rotation_info *r, unsigned int n, 357 struct scatterlist *sg) 358 { 359 unsigned int x, y; 360 361 for (x = 0; x < r->plane[n].width; x++) { 362 for (y = 0; y < r->plane[n].height; y++) { 363 unsigned long src_idx; 364 dma_addr_t src; 365 366 if (!sg) { 367 pr_err("Invalid sg table: too short at plane %d, (%d, %d)!\n", 368 n, x, y); 369 return ERR_PTR(-EINVAL); 370 } 371 372 src_idx = rotated_index(r, n, x, y); 373 src = i915_gem_object_get_dma_address(obj, src_idx); 374 375 if (sg_dma_len(sg) != PAGE_SIZE) { 376 pr_err("Invalid sg.length, found %d, expected %lu for rotated page (%d, %d) [src index %lu]\n", 377 sg_dma_len(sg), PAGE_SIZE, 378 x, y, src_idx); 379 return ERR_PTR(-EINVAL); 380 } 381 382 if (sg_dma_address(sg) != src) { 383 pr_err("Invalid address for rotated page (%d, %d) [src index %lu]\n", 384 x, y, src_idx); 385 return ERR_PTR(-EINVAL); 386 } 387 388 sg = sg_next(sg); 389 } 390 } 391 392 return sg; 393 } 394 395 static unsigned int rotated_size(const struct intel_rotation_plane_info *a, 396 const struct intel_rotation_plane_info *b) 397 { 398 return a->width * a->height + b->width * b->height; 399 } 400 401 static int igt_vma_rotate(void *arg) 402 { 403 struct drm_i915_private *i915 = arg; 404 struct i915_address_space *vm = &i915->ggtt.base; 405 struct drm_i915_gem_object *obj; 406 const struct intel_rotation_plane_info planes[] = { 407 { .width = 1, .height = 1, .stride = 1 }, 408 { .width = 2, .height = 2, .stride = 2 }, 409 { .width = 4, .height = 4, .stride = 4 }, 410 { .width = 8, .height = 8, .stride = 8 }, 411 412 { .width = 3, .height = 5, .stride = 3 }, 413 { .width = 3, .height = 5, .stride = 4 }, 414 { .width = 3, .height = 5, .stride = 5 }, 415 416 { .width = 5, .height = 3, .stride = 5 }, 417 { .width = 5, .height = 3, .stride = 7 }, 418 { .width = 5, .height = 3, .stride = 9 }, 419 420 { .width = 4, .height = 6, .stride = 6 }, 421 { .width = 6, .height = 4, .stride = 6 }, 422 { } 423 }, *a, *b; 424 const unsigned int max_pages = 64; 425 int err = -ENOMEM; 426 427 /* Create VMA for many different combinations of planes and check 428 * that the page layout within the rotated VMA match our expectations. 429 */ 430 431 obj = i915_gem_object_create_internal(i915, max_pages * PAGE_SIZE); 432 if (IS_ERR(obj)) 433 goto out; 434 435 for (a = planes; a->width; a++) { 436 for (b = planes + ARRAY_SIZE(planes); b-- != planes; ) { 437 struct i915_ggtt_view view; 438 unsigned int n, max_offset; 439 440 max_offset = max(a->stride * a->height, 441 b->stride * b->height); 442 GEM_BUG_ON(max_offset > max_pages); 443 max_offset = max_pages - max_offset; 444 445 view.type = I915_GGTT_VIEW_ROTATED; 446 view.rotated.plane[0] = *a; 447 view.rotated.plane[1] = *b; 448 449 for_each_prime_number_from(view.rotated.plane[0].offset, 0, max_offset) { 450 for_each_prime_number_from(view.rotated.plane[1].offset, 0, max_offset) { 451 struct scatterlist *sg; 452 struct i915_vma *vma; 453 454 vma = checked_vma_instance(obj, vm, &view); 455 if (IS_ERR(vma)) { 456 err = PTR_ERR(vma); 457 goto out_object; 458 } 459 460 err = i915_vma_pin(vma, 0, 0, PIN_GLOBAL); 461 if (err) { 462 pr_err("Failed to pin VMA, err=%d\n", err); 463 goto out_object; 464 } 465 466 if (vma->size != rotated_size(a, b) * PAGE_SIZE) { 467 pr_err("VMA is wrong size, expected %lu, found %llu\n", 468 PAGE_SIZE * rotated_size(a, b), vma->size); 469 err = -EINVAL; 470 goto out_object; 471 } 472 473 if (vma->pages->nents != rotated_size(a, b)) { 474 pr_err("sg table is wrong sizeo, expected %u, found %u nents\n", 475 rotated_size(a, b), vma->pages->nents); 476 err = -EINVAL; 477 goto out_object; 478 } 479 480 if (vma->node.size < vma->size) { 481 pr_err("VMA binding too small, expected %llu, found %llu\n", 482 vma->size, vma->node.size); 483 err = -EINVAL; 484 goto out_object; 485 } 486 487 if (vma->pages == obj->mm.pages) { 488 pr_err("VMA using unrotated object pages!\n"); 489 err = -EINVAL; 490 goto out_object; 491 } 492 493 sg = vma->pages->sgl; 494 for (n = 0; n < ARRAY_SIZE(view.rotated.plane); n++) { 495 sg = assert_rotated(obj, &view.rotated, n, sg); 496 if (IS_ERR(sg)) { 497 pr_err("Inconsistent VMA pages for plane %d: [(%d, %d, %d, %d), (%d, %d, %d, %d)]\n", n, 498 view.rotated.plane[0].width, 499 view.rotated.plane[0].height, 500 view.rotated.plane[0].stride, 501 view.rotated.plane[0].offset, 502 view.rotated.plane[1].width, 503 view.rotated.plane[1].height, 504 view.rotated.plane[1].stride, 505 view.rotated.plane[1].offset); 506 err = -EINVAL; 507 goto out_object; 508 } 509 } 510 511 i915_vma_unpin(vma); 512 } 513 } 514 } 515 } 516 517 out_object: 518 i915_gem_object_put(obj); 519 out: 520 return err; 521 } 522 523 static bool assert_partial(struct drm_i915_gem_object *obj, 524 struct i915_vma *vma, 525 unsigned long offset, 526 unsigned long size) 527 { 528 struct sgt_iter sgt; 529 dma_addr_t dma; 530 531 for_each_sgt_dma(dma, sgt, vma->pages) { 532 dma_addr_t src; 533 534 if (!size) { 535 pr_err("Partial scattergather list too long\n"); 536 return false; 537 } 538 539 src = i915_gem_object_get_dma_address(obj, offset); 540 if (src != dma) { 541 pr_err("DMA mismatch for partial page offset %lu\n", 542 offset); 543 return false; 544 } 545 546 offset++; 547 size--; 548 } 549 550 return true; 551 } 552 553 static bool assert_pin(struct i915_vma *vma, 554 struct i915_ggtt_view *view, 555 u64 size, 556 const char *name) 557 { 558 bool ok = true; 559 560 if (vma->size != size) { 561 pr_err("(%s) VMA is wrong size, expected %llu, found %llu\n", 562 name, size, vma->size); 563 ok = false; 564 } 565 566 if (vma->node.size < vma->size) { 567 pr_err("(%s) VMA binding too small, expected %llu, found %llu\n", 568 name, vma->size, vma->node.size); 569 ok = false; 570 } 571 572 if (view && view->type != I915_GGTT_VIEW_NORMAL) { 573 if (memcmp(&vma->ggtt_view, view, sizeof(*view))) { 574 pr_err("(%s) VMA mismatch upon creation!\n", 575 name); 576 ok = false; 577 } 578 579 if (vma->pages == vma->obj->mm.pages) { 580 pr_err("(%s) VMA using original object pages!\n", 581 name); 582 ok = false; 583 } 584 } else { 585 if (vma->ggtt_view.type != I915_GGTT_VIEW_NORMAL) { 586 pr_err("Not the normal ggtt view! Found %d\n", 587 vma->ggtt_view.type); 588 ok = false; 589 } 590 591 if (vma->pages != vma->obj->mm.pages) { 592 pr_err("VMA not using object pages!\n"); 593 ok = false; 594 } 595 } 596 597 return ok; 598 } 599 600 static int igt_vma_partial(void *arg) 601 { 602 struct drm_i915_private *i915 = arg; 603 struct i915_address_space *vm = &i915->ggtt.base; 604 const unsigned int npages = 1021; /* prime! */ 605 struct drm_i915_gem_object *obj; 606 const struct phase { 607 const char *name; 608 } phases[] = { 609 { "create" }, 610 { "lookup" }, 611 { }, 612 }, *p; 613 unsigned int sz, offset; 614 struct i915_vma *vma; 615 int err = -ENOMEM; 616 617 /* Create lots of different VMA for the object and check that 618 * we are returned the same VMA when we later request the same range. 619 */ 620 621 obj = i915_gem_object_create_internal(i915, npages*PAGE_SIZE); 622 if (IS_ERR(obj)) 623 goto out; 624 625 for (p = phases; p->name; p++) { /* exercise both create/lookup */ 626 unsigned int count, nvma; 627 628 nvma = 0; 629 for_each_prime_number_from(sz, 1, npages) { 630 for_each_prime_number_from(offset, 0, npages - sz) { 631 struct i915_ggtt_view view; 632 633 view.type = I915_GGTT_VIEW_PARTIAL; 634 view.partial.offset = offset; 635 view.partial.size = sz; 636 637 if (sz == npages) 638 view.type = I915_GGTT_VIEW_NORMAL; 639 640 vma = checked_vma_instance(obj, vm, &view); 641 if (IS_ERR(vma)) { 642 err = PTR_ERR(vma); 643 goto out_object; 644 } 645 646 err = i915_vma_pin(vma, 0, 0, PIN_GLOBAL); 647 if (err) 648 goto out_object; 649 650 if (!assert_pin(vma, &view, sz*PAGE_SIZE, p->name)) { 651 pr_err("(%s) Inconsistent partial pinning for (offset=%d, size=%d)\n", 652 p->name, offset, sz); 653 err = -EINVAL; 654 goto out_object; 655 } 656 657 if (!assert_partial(obj, vma, offset, sz)) { 658 pr_err("(%s) Inconsistent partial pages for (offset=%d, size=%d)\n", 659 p->name, offset, sz); 660 err = -EINVAL; 661 goto out_object; 662 } 663 664 i915_vma_unpin(vma); 665 nvma++; 666 } 667 } 668 669 count = 0; 670 list_for_each_entry(vma, &obj->vma_list, obj_link) 671 count++; 672 if (count != nvma) { 673 pr_err("(%s) All partial vma were not recorded on the obj->vma_list: found %u, expected %u\n", 674 p->name, count, nvma); 675 err = -EINVAL; 676 goto out_object; 677 } 678 679 /* Check that we did create the whole object mapping */ 680 vma = checked_vma_instance(obj, vm, NULL); 681 if (IS_ERR(vma)) { 682 err = PTR_ERR(vma); 683 goto out_object; 684 } 685 686 err = i915_vma_pin(vma, 0, 0, PIN_GLOBAL); 687 if (err) 688 goto out_object; 689 690 if (!assert_pin(vma, NULL, obj->base.size, p->name)) { 691 pr_err("(%s) inconsistent full pin\n", p->name); 692 err = -EINVAL; 693 goto out_object; 694 } 695 696 i915_vma_unpin(vma); 697 698 count = 0; 699 list_for_each_entry(vma, &obj->vma_list, obj_link) 700 count++; 701 if (count != nvma) { 702 pr_err("(%s) allocated an extra full vma!\n", p->name); 703 err = -EINVAL; 704 goto out_object; 705 } 706 } 707 708 out_object: 709 i915_gem_object_put(obj); 710 out: 711 return err; 712 } 713 714 int i915_vma_mock_selftests(void) 715 { 716 static const struct i915_subtest tests[] = { 717 SUBTEST(igt_vma_create), 718 SUBTEST(igt_vma_pin1), 719 SUBTEST(igt_vma_rotate), 720 SUBTEST(igt_vma_partial), 721 }; 722 struct drm_i915_private *i915; 723 int err; 724 725 i915 = mock_gem_device(); 726 if (!i915) 727 return -ENOMEM; 728 729 mutex_lock(&i915->drm.struct_mutex); 730 err = i915_subtests(tests, i915); 731 mutex_unlock(&i915->drm.struct_mutex); 732 733 drm_dev_unref(&i915->drm); 734 return err; 735 } 736 737