Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1// SPDX-License-Identifier: MIT
2/*
3 * Copyright © 2020-2022 Intel Corporation
4 */
5
6#include <kunit/test.h>
7#include <kunit/visibility.h>
8
9#include "tests/xe_kunit_helpers.h"
10#include "tests/xe_pci_test.h"
11
12#include "xe_pci.h"
13#include "xe_pm.h"
14
15static bool sanity_fence_failed(struct xe_device *xe, struct dma_fence *fence,
16 const char *str, struct kunit *test)
17{
18 long ret;
19
20 if (IS_ERR(fence)) {
21 KUNIT_FAIL(test, "Failed to create fence for %s: %li\n", str,
22 PTR_ERR(fence));
23 return true;
24 }
25 if (!fence)
26 return true;
27
28 ret = dma_fence_wait_timeout(fence, false, 5 * HZ);
29 if (ret <= 0) {
30 KUNIT_FAIL(test, "Fence timed out for %s: %li\n", str, ret);
31 return true;
32 }
33
34 return false;
35}
36
37static int run_sanity_job(struct xe_migrate *m, struct xe_device *xe,
38 struct xe_bb *bb, u32 second_idx, const char *str,
39 struct kunit *test)
40{
41 u64 batch_base = xe_migrate_batch_base(m, xe->info.has_usm);
42 struct xe_sched_job *job = xe_bb_create_migration_job(m->q, bb,
43 batch_base,
44 second_idx);
45 struct dma_fence *fence;
46
47 if (IS_ERR(job)) {
48 KUNIT_FAIL(test, "Failed to allocate fake pt: %li\n",
49 PTR_ERR(job));
50 return PTR_ERR(job);
51 }
52
53 xe_sched_job_arm(job);
54 fence = dma_fence_get(&job->drm.s_fence->finished);
55 xe_sched_job_push(job);
56
57 if (sanity_fence_failed(xe, fence, str, test))
58 return -ETIMEDOUT;
59
60 dma_fence_put(fence);
61 kunit_info(test, "%s: Job completed\n", str);
62 return 0;
63}
64
65#define check(_retval, _expected, str, _test) \
66 do { if ((_retval) != (_expected)) { \
67 KUNIT_FAIL(_test, "Sanity check failed: " str \
68 " expected %llx, got %llx\n", \
69 (u64)(_expected), (u64)(_retval)); \
70 } } while (0)
71
72static void test_copy(struct xe_migrate *m, struct xe_bo *bo,
73 struct kunit *test, u32 region, struct drm_exec *exec)
74{
75 struct xe_device *xe = tile_to_xe(m->tile);
76 u64 retval, expected = 0;
77 bool big = xe_bo_size(bo) >= SZ_2M;
78 struct dma_fence *fence;
79 const char *str = big ? "Copying big bo" : "Copying small bo";
80 int err;
81
82 struct xe_bo *remote = xe_bo_create_locked(xe, m->tile, NULL,
83 xe_bo_size(bo),
84 ttm_bo_type_kernel,
85 region |
86 XE_BO_FLAG_NEEDS_CPU_ACCESS |
87 XE_BO_FLAG_PINNED,
88 exec);
89 if (IS_ERR(remote)) {
90 KUNIT_FAIL(test, "Failed to allocate remote bo for %s: %pe\n",
91 str, remote);
92 return;
93 }
94
95 err = xe_bo_validate(remote, NULL, false, exec);
96 if (err) {
97 KUNIT_FAIL(test, "Failed to validate system bo for %s: %i\n",
98 str, err);
99 goto out_unlock;
100 }
101
102 err = xe_bo_vmap(remote);
103 if (err) {
104 KUNIT_FAIL(test, "Failed to vmap system bo for %s: %i\n",
105 str, err);
106 goto out_unlock;
107 }
108
109 xe_map_memset(xe, &remote->vmap, 0, 0xd0, xe_bo_size(remote));
110 fence = xe_migrate_clear(m, remote, remote->ttm.resource,
111 XE_MIGRATE_CLEAR_FLAG_FULL);
112 if (!sanity_fence_failed(xe, fence, big ? "Clearing remote big bo" :
113 "Clearing remote small bo", test)) {
114 retval = xe_map_rd(xe, &remote->vmap, 0, u64);
115 check(retval, expected, "remote first offset should be cleared",
116 test);
117 retval = xe_map_rd(xe, &remote->vmap, xe_bo_size(remote) - 8, u64);
118 check(retval, expected, "remote last offset should be cleared",
119 test);
120 }
121 dma_fence_put(fence);
122
123 /* Try to copy 0xc0 from remote to vram with 2MB or 64KiB/4KiB pages */
124 xe_map_memset(xe, &remote->vmap, 0, 0xc0, xe_bo_size(remote));
125 xe_map_memset(xe, &bo->vmap, 0, 0xd0, xe_bo_size(bo));
126
127 expected = 0xc0c0c0c0c0c0c0c0;
128 fence = xe_migrate_copy(m, remote, bo, remote->ttm.resource,
129 bo->ttm.resource, false);
130 if (!sanity_fence_failed(xe, fence, big ? "Copying big bo remote -> vram" :
131 "Copying small bo remote -> vram", test)) {
132 retval = xe_map_rd(xe, &bo->vmap, 0, u64);
133 check(retval, expected,
134 "remote -> vram bo first offset should be copied", test);
135 retval = xe_map_rd(xe, &bo->vmap, xe_bo_size(bo) - 8, u64);
136 check(retval, expected,
137 "remote -> vram bo offset should be copied", test);
138 }
139 dma_fence_put(fence);
140
141 /* And other way around.. slightly hacky.. */
142 xe_map_memset(xe, &remote->vmap, 0, 0xd0, xe_bo_size(remote));
143 xe_map_memset(xe, &bo->vmap, 0, 0xc0, xe_bo_size(bo));
144
145 fence = xe_migrate_copy(m, bo, remote, bo->ttm.resource,
146 remote->ttm.resource, false);
147 if (!sanity_fence_failed(xe, fence, big ? "Copying big bo vram -> remote" :
148 "Copying small bo vram -> remote", test)) {
149 retval = xe_map_rd(xe, &remote->vmap, 0, u64);
150 check(retval, expected,
151 "vram -> remote bo first offset should be copied", test);
152 retval = xe_map_rd(xe, &remote->vmap, xe_bo_size(bo) - 8, u64);
153 check(retval, expected,
154 "vram -> remote bo last offset should be copied", test);
155 }
156 dma_fence_put(fence);
157
158 xe_bo_vunmap(remote);
159out_unlock:
160 xe_bo_unlock(remote);
161 xe_bo_put(remote);
162}
163
164static void test_copy_sysmem(struct xe_migrate *m, struct xe_bo *bo,
165 struct drm_exec *exec, struct kunit *test)
166{
167 test_copy(m, bo, test, XE_BO_FLAG_SYSTEM, exec);
168}
169
170static void test_copy_vram(struct xe_migrate *m, struct xe_bo *bo,
171 struct drm_exec *exec, struct kunit *test)
172{
173 u32 region;
174
175 if (bo->ttm.resource->mem_type == XE_PL_SYSTEM)
176 return;
177
178 if (bo->ttm.resource->mem_type == XE_PL_VRAM0)
179 region = XE_BO_FLAG_VRAM1;
180 else
181 region = XE_BO_FLAG_VRAM0;
182 test_copy(m, bo, test, region, exec);
183}
184
185static void xe_migrate_sanity_test(struct xe_migrate *m, struct kunit *test,
186 struct drm_exec *exec)
187{
188 struct xe_tile *tile = m->tile;
189 struct xe_device *xe = tile_to_xe(tile);
190 struct xe_bo *pt, *bo = m->pt_bo, *big, *tiny;
191 struct xe_res_cursor src_it;
192 struct dma_fence *fence;
193 u64 retval, expected;
194 struct xe_bb *bb;
195 int err;
196 u8 id = tile->id;
197
198 err = xe_bo_vmap(bo);
199 if (err) {
200 KUNIT_FAIL(test, "Failed to vmap our pagetables: %li\n",
201 PTR_ERR(bo));
202 return;
203 }
204
205 big = xe_bo_create_pin_map(xe, tile, m->q->vm, SZ_4M,
206 ttm_bo_type_kernel,
207 XE_BO_FLAG_VRAM_IF_DGFX(tile),
208 exec);
209 if (IS_ERR(big)) {
210 KUNIT_FAIL(test, "Failed to allocate bo: %li\n", PTR_ERR(big));
211 goto vunmap;
212 }
213
214 pt = xe_bo_create_pin_map(xe, tile, m->q->vm, XE_PAGE_SIZE,
215 ttm_bo_type_kernel,
216 XE_BO_FLAG_VRAM_IF_DGFX(tile),
217 exec);
218 if (IS_ERR(pt)) {
219 KUNIT_FAIL(test, "Failed to allocate fake pt: %li\n",
220 PTR_ERR(pt));
221 goto free_big;
222 }
223
224 tiny = xe_bo_create_pin_map(xe, tile, m->q->vm,
225 2 * SZ_4K,
226 ttm_bo_type_kernel,
227 XE_BO_FLAG_VRAM_IF_DGFX(tile),
228 exec);
229 if (IS_ERR(tiny)) {
230 KUNIT_FAIL(test, "Failed to allocate tiny fake pt: %li\n",
231 PTR_ERR(tiny));
232 goto free_pt;
233 }
234
235 bb = xe_bb_new(tile->primary_gt, 32, xe->info.has_usm);
236 if (IS_ERR(bb)) {
237 KUNIT_FAIL(test, "Failed to create batchbuffer: %li\n",
238 PTR_ERR(bb));
239 goto free_tiny;
240 }
241
242 kunit_info(test, "Starting tests, top level PT addr: %lx, special pagetable base addr: %lx\n",
243 (unsigned long)xe_bo_main_addr(m->q->vm->pt_root[id]->bo, XE_PAGE_SIZE),
244 (unsigned long)xe_bo_main_addr(m->pt_bo, XE_PAGE_SIZE));
245
246 /* First part of the test, are we updating our pagetable bo with a new entry? */
247 xe_map_wr(xe, &bo->vmap, XE_PAGE_SIZE * (NUM_KERNEL_PDE - 1), u64,
248 0xdeaddeadbeefbeef);
249 expected = m->q->vm->pt_ops->pte_encode_bo(pt, 0, xe->pat.idx[XE_CACHE_WB], 0);
250 if (m->q->vm->flags & XE_VM_FLAG_64K)
251 expected |= XE_PTE_PS64;
252 if (xe_bo_is_vram(pt))
253 xe_res_first(pt->ttm.resource, 0, xe_bo_size(pt), &src_it);
254 else
255 xe_res_first_sg(xe_bo_sg(pt), 0, xe_bo_size(pt), &src_it);
256
257 emit_pte(m, bb, NUM_KERNEL_PDE - 1, xe_bo_is_vram(pt), false,
258 &src_it, XE_PAGE_SIZE, pt->ttm.resource);
259
260 run_sanity_job(m, xe, bb, bb->len, "Writing PTE for our fake PT", test);
261
262 retval = xe_map_rd(xe, &bo->vmap, XE_PAGE_SIZE * (NUM_KERNEL_PDE - 1),
263 u64);
264 check(retval, expected, "PTE entry write", test);
265
266 /* Now try to write data to our newly mapped 'pagetable', see if it succeeds */
267 bb->len = 0;
268 bb->cs[bb->len++] = MI_BATCH_BUFFER_END;
269 xe_map_wr(xe, &pt->vmap, 0, u32, 0xdeaddead);
270 expected = 0;
271
272 emit_clear(tile->primary_gt, bb, xe_migrate_vm_addr(NUM_KERNEL_PDE - 1, 0), 4, 4,
273 IS_DGFX(xe));
274 run_sanity_job(m, xe, bb, 1, "Writing to our newly mapped pagetable",
275 test);
276
277 retval = xe_map_rd(xe, &pt->vmap, 0, u32);
278 check(retval, expected, "Write to PT after adding PTE", test);
279
280 /* Sanity checks passed, try the full ones! */
281
282 /* Clear a small bo */
283 kunit_info(test, "Clearing small buffer object\n");
284 xe_map_memset(xe, &tiny->vmap, 0, 0x22, xe_bo_size(tiny));
285 expected = 0;
286 fence = xe_migrate_clear(m, tiny, tiny->ttm.resource,
287 XE_MIGRATE_CLEAR_FLAG_FULL);
288 if (sanity_fence_failed(xe, fence, "Clearing small bo", test))
289 goto out;
290
291 dma_fence_put(fence);
292 retval = xe_map_rd(xe, &tiny->vmap, 0, u32);
293 check(retval, expected, "Command clear small first value", test);
294 retval = xe_map_rd(xe, &tiny->vmap, xe_bo_size(tiny) - 4, u32);
295 check(retval, expected, "Command clear small last value", test);
296
297 kunit_info(test, "Copying small buffer object to system\n");
298 test_copy_sysmem(m, tiny, exec, test);
299 if (xe->info.tile_count > 1) {
300 kunit_info(test, "Copying small buffer object to other vram\n");
301 test_copy_vram(m, tiny, exec, test);
302 }
303
304 /* Clear a big bo */
305 kunit_info(test, "Clearing big buffer object\n");
306 xe_map_memset(xe, &big->vmap, 0, 0x11, xe_bo_size(big));
307 expected = 0;
308 fence = xe_migrate_clear(m, big, big->ttm.resource,
309 XE_MIGRATE_CLEAR_FLAG_FULL);
310 if (sanity_fence_failed(xe, fence, "Clearing big bo", test))
311 goto out;
312
313 dma_fence_put(fence);
314 retval = xe_map_rd(xe, &big->vmap, 0, u32);
315 check(retval, expected, "Command clear big first value", test);
316 retval = xe_map_rd(xe, &big->vmap, xe_bo_size(big) - 4, u32);
317 check(retval, expected, "Command clear big last value", test);
318
319 kunit_info(test, "Copying big buffer object to system\n");
320 test_copy_sysmem(m, big, exec, test);
321 if (xe->info.tile_count > 1) {
322 kunit_info(test, "Copying big buffer object to other vram\n");
323 test_copy_vram(m, big, exec, test);
324 }
325
326out:
327 xe_bb_free(bb, NULL);
328free_tiny:
329 xe_bo_unpin(tiny);
330 xe_bo_put(tiny);
331free_pt:
332 xe_bo_unpin(pt);
333 xe_bo_put(pt);
334free_big:
335 xe_bo_unpin(big);
336 xe_bo_put(big);
337vunmap:
338 xe_bo_vunmap(m->pt_bo);
339}
340
341static int migrate_test_run_device(struct xe_device *xe)
342{
343 struct kunit *test = kunit_get_current_test();
344 struct xe_tile *tile;
345 int id;
346
347 guard(xe_pm_runtime)(xe);
348 for_each_tile(tile, xe, id) {
349 struct xe_migrate *m = tile->migrate;
350 struct drm_exec *exec = XE_VALIDATION_OPT_OUT;
351
352 kunit_info(test, "Testing tile id %d.\n", id);
353 xe_vm_lock(m->q->vm, false);
354 xe_migrate_sanity_test(m, test, exec);
355 xe_vm_unlock(m->q->vm);
356 }
357
358 return 0;
359}
360
361static void xe_migrate_sanity_kunit(struct kunit *test)
362{
363 struct xe_device *xe = test->priv;
364
365 migrate_test_run_device(xe);
366}
367
368static struct dma_fence *blt_copy(struct xe_tile *tile,
369 struct xe_bo *src_bo, struct xe_bo *dst_bo,
370 bool copy_only_ccs, const char *str, struct kunit *test)
371{
372 struct xe_gt *gt = tile->primary_gt;
373 struct xe_migrate *m = tile->migrate;
374 struct xe_device *xe = gt_to_xe(gt);
375 struct dma_fence *fence = NULL;
376 u64 size = xe_bo_size(src_bo);
377 struct xe_res_cursor src_it, dst_it;
378 struct ttm_resource *src = src_bo->ttm.resource, *dst = dst_bo->ttm.resource;
379 u64 src_L0_ofs, dst_L0_ofs;
380 u32 src_L0_pt, dst_L0_pt;
381 u64 src_L0, dst_L0;
382 int err;
383 bool src_is_vram = mem_type_is_vram(src->mem_type);
384 bool dst_is_vram = mem_type_is_vram(dst->mem_type);
385
386 if (!src_is_vram)
387 xe_res_first_sg(xe_bo_sg(src_bo), 0, size, &src_it);
388 else
389 xe_res_first(src, 0, size, &src_it);
390
391 if (!dst_is_vram)
392 xe_res_first_sg(xe_bo_sg(dst_bo), 0, size, &dst_it);
393 else
394 xe_res_first(dst, 0, size, &dst_it);
395
396 while (size) {
397 u32 batch_size = 2; /* arb_clear() + MI_BATCH_BUFFER_END */
398 struct xe_sched_job *job;
399 struct xe_bb *bb;
400 u32 flush_flags = 0;
401 u32 update_idx;
402 u32 avail_pts = max_mem_transfer_per_pass(xe) / LEVEL0_PAGE_TABLE_ENCODE_SIZE;
403 u32 pte_flags;
404
405 src_L0 = xe_migrate_res_sizes(m, &src_it);
406 dst_L0 = xe_migrate_res_sizes(m, &dst_it);
407
408 src_L0 = min(src_L0, dst_L0);
409
410 pte_flags = src_is_vram ? (PTE_UPDATE_FLAG_IS_VRAM |
411 PTE_UPDATE_FLAG_IS_COMP_PTE) : 0;
412 batch_size += pte_update_size(m, pte_flags, src, &src_it, &src_L0,
413 &src_L0_ofs, &src_L0_pt, 0, 0,
414 avail_pts);
415
416 pte_flags = dst_is_vram ? (PTE_UPDATE_FLAG_IS_VRAM |
417 PTE_UPDATE_FLAG_IS_COMP_PTE) : 0;
418 batch_size += pte_update_size(m, pte_flags, dst, &dst_it, &src_L0,
419 &dst_L0_ofs, &dst_L0_pt, 0,
420 avail_pts, avail_pts);
421
422 /* Add copy commands size here */
423 batch_size += ((copy_only_ccs) ? 0 : EMIT_COPY_DW) +
424 ((xe_device_has_flat_ccs(xe) && copy_only_ccs) ? EMIT_COPY_CCS_DW : 0);
425
426 bb = xe_bb_new(gt, batch_size, xe->info.has_usm);
427 if (IS_ERR(bb)) {
428 err = PTR_ERR(bb);
429 goto err_sync;
430 }
431
432 if (src_is_vram)
433 xe_res_next(&src_it, src_L0);
434 else
435 emit_pte(m, bb, src_L0_pt, src_is_vram, false,
436 &src_it, src_L0, src);
437
438 if (dst_is_vram)
439 xe_res_next(&dst_it, src_L0);
440 else
441 emit_pte(m, bb, dst_L0_pt, dst_is_vram, false,
442 &dst_it, src_L0, dst);
443
444 bb->cs[bb->len++] = MI_BATCH_BUFFER_END;
445 update_idx = bb->len;
446 if (!copy_only_ccs)
447 emit_copy(gt, bb, src_L0_ofs, dst_L0_ofs, src_L0, XE_PAGE_SIZE);
448
449 if (copy_only_ccs)
450 flush_flags = xe_migrate_ccs_copy(m, bb, src_L0_ofs,
451 src_is_vram, dst_L0_ofs,
452 dst_is_vram, src_L0, dst_L0_ofs,
453 copy_only_ccs);
454
455 job = xe_bb_create_migration_job(m->q, bb,
456 xe_migrate_batch_base(m, xe->info.has_usm),
457 update_idx);
458 if (IS_ERR(job)) {
459 err = PTR_ERR(job);
460 goto err;
461 }
462
463 xe_sched_job_add_migrate_flush(job, flush_flags);
464
465 mutex_lock(&m->job_mutex);
466 xe_sched_job_arm(job);
467 dma_fence_put(fence);
468 fence = dma_fence_get(&job->drm.s_fence->finished);
469 xe_sched_job_push(job);
470
471 dma_fence_put(m->fence);
472 m->fence = dma_fence_get(fence);
473
474 mutex_unlock(&m->job_mutex);
475
476 xe_bb_free(bb, fence);
477 size -= src_L0;
478 continue;
479
480err:
481 xe_bb_free(bb, NULL);
482
483err_sync:
484 if (fence) {
485 dma_fence_wait(fence, false);
486 dma_fence_put(fence);
487 }
488 return ERR_PTR(err);
489 }
490
491 return fence;
492}
493
494static void test_migrate(struct xe_device *xe, struct xe_tile *tile,
495 struct xe_bo *sys_bo, struct xe_bo *vram_bo, struct xe_bo *ccs_bo,
496 struct drm_exec *exec, struct kunit *test)
497{
498 struct dma_fence *fence;
499 u64 expected, retval;
500 long timeout;
501 long ret;
502
503 expected = 0xd0d0d0d0d0d0d0d0;
504 xe_map_memset(xe, &sys_bo->vmap, 0, 0xd0, xe_bo_size(sys_bo));
505
506 fence = blt_copy(tile, sys_bo, vram_bo, false, "Blit copy from sysmem to vram", test);
507 if (!sanity_fence_failed(xe, fence, "Blit copy from sysmem to vram", test)) {
508 retval = xe_map_rd(xe, &vram_bo->vmap, 0, u64);
509 if (retval == expected)
510 KUNIT_FAIL(test, "Sanity check failed: VRAM must have compressed value\n");
511 }
512 dma_fence_put(fence);
513
514 kunit_info(test, "Evict vram buffer object\n");
515 ret = xe_bo_evict(vram_bo, exec);
516 if (ret) {
517 KUNIT_FAIL(test, "Failed to evict bo.\n");
518 return;
519 }
520
521 ret = xe_bo_vmap(vram_bo);
522 if (ret) {
523 KUNIT_FAIL(test, "Failed to vmap vram bo: %li\n", ret);
524 return;
525 }
526
527 retval = xe_map_rd(xe, &vram_bo->vmap, 0, u64);
528 check(retval, expected, "Clear evicted vram data first value", test);
529 retval = xe_map_rd(xe, &vram_bo->vmap, xe_bo_size(vram_bo) - 8, u64);
530 check(retval, expected, "Clear evicted vram data last value", test);
531
532 fence = blt_copy(tile, vram_bo, ccs_bo,
533 true, "Blit surf copy from vram to sysmem", test);
534 if (!sanity_fence_failed(xe, fence, "Clear ccs buffer data", test)) {
535 retval = xe_map_rd(xe, &ccs_bo->vmap, 0, u64);
536 check(retval, 0, "Clear ccs data first value", test);
537
538 retval = xe_map_rd(xe, &ccs_bo->vmap, xe_bo_size(ccs_bo) - 8, u64);
539 check(retval, 0, "Clear ccs data last value", test);
540 }
541 dma_fence_put(fence);
542
543 kunit_info(test, "Restore vram buffer object\n");
544 ret = xe_bo_validate(vram_bo, NULL, false, exec);
545 if (ret) {
546 KUNIT_FAIL(test, "Failed to validate vram bo for: %li\n", ret);
547 return;
548 }
549
550 /* Sync all migration blits */
551 timeout = dma_resv_wait_timeout(vram_bo->ttm.base.resv,
552 DMA_RESV_USAGE_KERNEL,
553 true,
554 5 * HZ);
555 if (timeout <= 0) {
556 KUNIT_FAIL(test, "Failed to sync bo eviction.\n");
557 return;
558 }
559
560 ret = xe_bo_vmap(vram_bo);
561 if (ret) {
562 KUNIT_FAIL(test, "Failed to vmap vram bo: %li\n", ret);
563 return;
564 }
565
566 retval = xe_map_rd(xe, &vram_bo->vmap, 0, u64);
567 check(retval, expected, "Restored value must be equal to initial value", test);
568 retval = xe_map_rd(xe, &vram_bo->vmap, xe_bo_size(vram_bo) - 8, u64);
569 check(retval, expected, "Restored value must be equal to initial value", test);
570
571 fence = blt_copy(tile, vram_bo, ccs_bo,
572 true, "Blit surf copy from vram to sysmem", test);
573 if (!sanity_fence_failed(xe, fence, "Clear ccs buffer data", test)) {
574 retval = xe_map_rd(xe, &ccs_bo->vmap, 0, u64);
575 check(retval, 0, "Clear ccs data first value", test);
576 retval = xe_map_rd(xe, &ccs_bo->vmap, xe_bo_size(ccs_bo) - 8, u64);
577 check(retval, 0, "Clear ccs data last value", test);
578 }
579 dma_fence_put(fence);
580}
581
582static void test_clear(struct xe_device *xe, struct xe_tile *tile,
583 struct xe_bo *sys_bo, struct xe_bo *vram_bo, struct kunit *test)
584{
585 struct dma_fence *fence;
586 u64 expected, retval;
587
588 expected = 0xd0d0d0d0d0d0d0d0;
589 xe_map_memset(xe, &sys_bo->vmap, 0, 0xd0, xe_bo_size(sys_bo));
590
591 fence = blt_copy(tile, sys_bo, vram_bo, false, "Blit copy from sysmem to vram", test);
592 if (!sanity_fence_failed(xe, fence, "Blit copy from sysmem to vram", test)) {
593 retval = xe_map_rd(xe, &vram_bo->vmap, 0, u64);
594 if (retval == expected)
595 KUNIT_FAIL(test, "Sanity check failed: VRAM must have compressed value\n");
596 }
597 dma_fence_put(fence);
598
599 fence = blt_copy(tile, vram_bo, sys_bo, false, "Blit copy from vram to sysmem", test);
600 if (!sanity_fence_failed(xe, fence, "Blit copy from vram to sysmem", test)) {
601 retval = xe_map_rd(xe, &sys_bo->vmap, 0, u64);
602 check(retval, expected, "Decompressed value must be equal to initial value", test);
603 retval = xe_map_rd(xe, &sys_bo->vmap, xe_bo_size(sys_bo) - 8, u64);
604 check(retval, expected, "Decompressed value must be equal to initial value", test);
605 }
606 dma_fence_put(fence);
607
608 kunit_info(test, "Clear vram buffer object\n");
609 expected = 0x0000000000000000;
610 fence = xe_migrate_clear(tile->migrate, vram_bo, vram_bo->ttm.resource,
611 XE_MIGRATE_CLEAR_FLAG_FULL);
612 if (sanity_fence_failed(xe, fence, "Clear vram_bo", test))
613 return;
614 dma_fence_put(fence);
615
616 fence = blt_copy(tile, vram_bo, sys_bo,
617 false, "Blit copy from vram to sysmem", test);
618 if (!sanity_fence_failed(xe, fence, "Clear main buffer data", test)) {
619 retval = xe_map_rd(xe, &sys_bo->vmap, 0, u64);
620 check(retval, expected, "Clear main buffer first value", test);
621 retval = xe_map_rd(xe, &sys_bo->vmap, xe_bo_size(sys_bo) - 8, u64);
622 check(retval, expected, "Clear main buffer last value", test);
623 }
624 dma_fence_put(fence);
625
626 fence = blt_copy(tile, vram_bo, sys_bo,
627 true, "Blit surf copy from vram to sysmem", test);
628 if (!sanity_fence_failed(xe, fence, "Clear ccs buffer data", test)) {
629 retval = xe_map_rd(xe, &sys_bo->vmap, 0, u64);
630 check(retval, expected, "Clear ccs data first value", test);
631 retval = xe_map_rd(xe, &sys_bo->vmap, xe_bo_size(sys_bo) - 8, u64);
632 check(retval, expected, "Clear ccs data last value", test);
633 }
634 dma_fence_put(fence);
635}
636
637static void validate_ccs_test_run_tile(struct xe_device *xe, struct xe_tile *tile,
638 struct kunit *test)
639{
640 struct xe_bo *sys_bo, *vram_bo = NULL, *ccs_bo = NULL;
641 unsigned int bo_flags = XE_BO_FLAG_VRAM_IF_DGFX(tile);
642 struct drm_exec *exec;
643 long ret;
644
645 sys_bo = xe_bo_create_user(xe, NULL, SZ_4M,
646 DRM_XE_GEM_CPU_CACHING_WC,
647 XE_BO_FLAG_SYSTEM |
648 XE_BO_FLAG_NEEDS_CPU_ACCESS |
649 XE_BO_FLAG_PINNED, NULL);
650
651 if (IS_ERR(sys_bo)) {
652 KUNIT_FAIL(test, "xe_bo_create() failed with err=%ld\n",
653 PTR_ERR(sys_bo));
654 return;
655 }
656
657 exec = XE_VALIDATION_OPT_OUT;
658 xe_bo_lock(sys_bo, false);
659 ret = xe_bo_validate(sys_bo, NULL, false, exec);
660 if (ret) {
661 KUNIT_FAIL(test, "Failed to validate system bo for: %li\n", ret);
662 goto free_sysbo;
663 }
664
665 ret = xe_bo_vmap(sys_bo);
666 if (ret) {
667 KUNIT_FAIL(test, "Failed to vmap system bo: %li\n", ret);
668 goto free_sysbo;
669 }
670 xe_bo_unlock(sys_bo);
671
672 ccs_bo = xe_bo_create_user(xe, NULL, SZ_4M,
673 DRM_XE_GEM_CPU_CACHING_WC,
674 bo_flags | XE_BO_FLAG_NEEDS_CPU_ACCESS |
675 XE_BO_FLAG_PINNED, NULL);
676
677 if (IS_ERR(ccs_bo)) {
678 KUNIT_FAIL(test, "xe_bo_create() failed with err=%ld\n",
679 PTR_ERR(ccs_bo));
680 return;
681 }
682
683 xe_bo_lock(ccs_bo, false);
684 ret = xe_bo_validate(ccs_bo, NULL, false, exec);
685 if (ret) {
686 KUNIT_FAIL(test, "Failed to validate system bo for: %li\n", ret);
687 goto free_ccsbo;
688 }
689
690 ret = xe_bo_vmap(ccs_bo);
691 if (ret) {
692 KUNIT_FAIL(test, "Failed to vmap system bo: %li\n", ret);
693 goto free_ccsbo;
694 }
695 xe_bo_unlock(ccs_bo);
696
697 vram_bo = xe_bo_create_user(xe, NULL, SZ_4M,
698 DRM_XE_GEM_CPU_CACHING_WC,
699 bo_flags | XE_BO_FLAG_NEEDS_CPU_ACCESS |
700 XE_BO_FLAG_PINNED, NULL);
701 if (IS_ERR(vram_bo)) {
702 KUNIT_FAIL(test, "xe_bo_create() failed with err=%ld\n",
703 PTR_ERR(vram_bo));
704 return;
705 }
706
707 xe_bo_lock(vram_bo, false);
708 ret = xe_bo_validate(vram_bo, NULL, false, exec);
709 if (ret) {
710 KUNIT_FAIL(test, "Failed to validate vram bo for: %li\n", ret);
711 goto free_vrambo;
712 }
713
714 ret = xe_bo_vmap(vram_bo);
715 if (ret) {
716 KUNIT_FAIL(test, "Failed to vmap vram bo: %li\n", ret);
717 goto free_vrambo;
718 }
719
720 test_clear(xe, tile, sys_bo, vram_bo, test);
721 test_migrate(xe, tile, sys_bo, vram_bo, ccs_bo, exec, test);
722 xe_bo_unlock(vram_bo);
723
724 xe_bo_lock(vram_bo, false);
725 xe_bo_vunmap(vram_bo);
726 xe_bo_unlock(vram_bo);
727
728 xe_bo_lock(ccs_bo, false);
729 xe_bo_vunmap(ccs_bo);
730 xe_bo_unlock(ccs_bo);
731
732 xe_bo_lock(sys_bo, false);
733 xe_bo_vunmap(sys_bo);
734 xe_bo_unlock(sys_bo);
735free_vrambo:
736 xe_bo_put(vram_bo);
737free_ccsbo:
738 xe_bo_put(ccs_bo);
739free_sysbo:
740 xe_bo_put(sys_bo);
741}
742
743static int validate_ccs_test_run_device(struct xe_device *xe)
744{
745 struct kunit *test = kunit_get_current_test();
746 struct xe_tile *tile;
747 int id;
748
749 if (!xe_device_has_flat_ccs(xe)) {
750 kunit_skip(test, "non-flat-ccs device\n");
751 return 0;
752 }
753
754 if (!(GRAPHICS_VER(xe) >= 20 && IS_DGFX(xe))) {
755 kunit_skip(test, "non-xe2 discrete device\n");
756 return 0;
757 }
758
759 guard(xe_pm_runtime)(xe);
760 for_each_tile(tile, xe, id)
761 validate_ccs_test_run_tile(xe, tile, test);
762
763 return 0;
764}
765
766static void xe_validate_ccs_kunit(struct kunit *test)
767{
768 struct xe_device *xe = test->priv;
769
770 validate_ccs_test_run_device(xe);
771}
772
773static struct kunit_case xe_migrate_tests[] = {
774 KUNIT_CASE_PARAM(xe_migrate_sanity_kunit, xe_pci_live_device_gen_param),
775 KUNIT_CASE_PARAM(xe_validate_ccs_kunit, xe_pci_live_device_gen_param),
776 {}
777};
778
779VISIBLE_IF_KUNIT
780struct kunit_suite xe_migrate_test_suite = {
781 .name = "xe_migrate",
782 .test_cases = xe_migrate_tests,
783 .init = xe_kunit_helper_xe_device_live_test_init,
784};
785EXPORT_SYMBOL_IF_KUNIT(xe_migrate_test_suite);