summaryrefslogtreecommitdiff
path: root/drivers/accel/ivpu/ivpu_gem.c
blob: c91852f2edc82ac7f8f3718e2168ee0a01fff8af (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright (C) 2020-2023 Intel Corporation
 */

#include <linux/dma-buf.h>
#include <linux/highmem.h>
#include <linux/module.h>
#include <linux/set_memory.h>
#include <linux/xarray.h>

#include <drm/drm_cache.h>
#include <drm/drm_debugfs.h>
#include <drm/drm_file.h>
#include <drm/drm_utils.h>

#include "ivpu_drv.h"
#include "ivpu_gem.h"
#include "ivpu_hw.h"
#include "ivpu_mmu.h"
#include "ivpu_mmu_context.h"

MODULE_IMPORT_NS(DMA_BUF);

static const struct drm_gem_object_funcs ivpu_gem_funcs;

static struct lock_class_key prime_bo_lock_class_key;

static int __must_check prime_alloc_pages_locked(struct ivpu_bo *bo)
{
	/* Pages are managed by the underlying dma-buf */
	return 0;
}

static void prime_free_pages_locked(struct ivpu_bo *bo)
{
	/* Pages are managed by the underlying dma-buf */
}

static int prime_map_pages_locked(struct ivpu_bo *bo)
{
	struct ivpu_device *vdev = ivpu_bo_to_vdev(bo);
	struct sg_table *sgt;

	sgt = dma_buf_map_attachment_unlocked(bo->base.import_attach, DMA_BIDIRECTIONAL);
	if (IS_ERR(sgt)) {
		ivpu_err(vdev, "Failed to map attachment: %ld\n", PTR_ERR(sgt));
		return PTR_ERR(sgt);
	}

	bo->sgt = sgt;
	return 0;
}

static void prime_unmap_pages_locked(struct ivpu_bo *bo)
{
	dma_buf_unmap_attachment_unlocked(bo->base.import_attach, bo->sgt, DMA_BIDIRECTIONAL);
	bo->sgt = NULL;
}

static const struct ivpu_bo_ops prime_ops = {
	.type = IVPU_BO_TYPE_PRIME,
	.name = "prime",
	.alloc_pages = prime_alloc_pages_locked,
	.free_pages = prime_free_pages_locked,
	.map_pages = prime_map_pages_locked,
	.unmap_pages = prime_unmap_pages_locked,
};

static int __must_check shmem_alloc_pages_locked(struct ivpu_bo *bo)
{
	int npages = ivpu_bo_size(bo) >> PAGE_SHIFT;
	struct page **pages;

	pages = drm_gem_get_pages(&bo->base);
	if (IS_ERR(pages))
		return PTR_ERR(pages);

	if (bo->flags & DRM_IVPU_BO_WC)
		set_pages_array_wc(pages, npages);
	else if (bo->flags & DRM_IVPU_BO_UNCACHED)
		set_pages_array_uc(pages, npages);

	bo->pages = pages;
	return 0;
}

static void shmem_free_pages_locked(struct ivpu_bo *bo)
{
	if (ivpu_bo_cache_mode(bo) != DRM_IVPU_BO_CACHED)
		set_pages_array_wb(bo->pages, ivpu_bo_size(bo) >> PAGE_SHIFT);

	drm_gem_put_pages(&bo->base, bo->pages, true, false);
	bo->pages = NULL;
}

static int ivpu_bo_map_pages_locked(struct ivpu_bo *bo)
{
	int npages = ivpu_bo_size(bo) >> PAGE_SHIFT;
	struct ivpu_device *vdev = ivpu_bo_to_vdev(bo);
	struct sg_table *sgt;
	int ret;

	sgt = drm_prime_pages_to_sg(&vdev->drm, bo->pages, npages);
	if (IS_ERR(sgt)) {
		ivpu_err(vdev, "Failed to allocate sgtable\n");
		return PTR_ERR(sgt);
	}

	ret = dma_map_sgtable(vdev->drm.dev, sgt, DMA_BIDIRECTIONAL, 0);
	if (ret) {
		ivpu_err(vdev, "Failed to map BO in IOMMU: %d\n", ret);
		goto err_free_sgt;
	}

	bo->sgt = sgt;
	return 0;

err_free_sgt:
	kfree(sgt);
	return ret;
}

static void ivpu_bo_unmap_pages_locked(struct ivpu_bo *bo)
{
	struct ivpu_device *vdev = ivpu_bo_to_vdev(bo);

	dma_unmap_sgtable(vdev->drm.dev, bo->sgt, DMA_BIDIRECTIONAL, 0);
	sg_free_table(bo->sgt);
	kfree(bo->sgt);
	bo->sgt = NULL;
}

static const struct ivpu_bo_ops shmem_ops = {
	.type = IVPU_BO_TYPE_SHMEM,
	.name = "shmem",
	.alloc_pages = shmem_alloc_pages_locked,
	.free_pages = shmem_free_pages_locked,
	.map_pages = ivpu_bo_map_pages_locked,
	.unmap_pages = ivpu_bo_unmap_pages_locked,
};

static int __must_check internal_alloc_pages_locked(struct ivpu_bo *bo)
{
	unsigned int i, npages = ivpu_bo_size(bo) >> PAGE_SHIFT;
	struct page **pages;
	int ret;

	pages = kvmalloc_array(npages, sizeof(*bo->pages), GFP_KERNEL);
	if (!pages)
		return -ENOMEM;

	for (i = 0; i < npages; i++) {
		pages[i] = alloc_page(GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO);
		if (!pages[i]) {
			ret = -ENOMEM;
			goto err_free_pages;
		}
		cond_resched();
	}

	bo->pages = pages;
	return 0;

err_free_pages:
	while (i--)
		put_page(pages[i]);
	kvfree(pages);
	return ret;
}

static void internal_free_pages_locked(struct ivpu_bo *bo)
{
	unsigned int i, npages = ivpu_bo_size(bo) >> PAGE_SHIFT;

	if (ivpu_bo_cache_mode(bo) != DRM_IVPU_BO_CACHED)
		set_pages_array_wb(bo->pages, ivpu_bo_size(bo) >> PAGE_SHIFT);

	for (i = 0; i < npages; i++)
		put_page(bo->pages[i]);

	kvfree(bo->pages);
	bo->pages = NULL;
}

static const struct ivpu_bo_ops internal_ops = {
	.type = IVPU_BO_TYPE_INTERNAL,
	.name = "internal",
	.alloc_pages = internal_alloc_pages_locked,
	.free_pages = internal_free_pages_locked,
	.map_pages = ivpu_bo_map_pages_locked,
	.unmap_pages = ivpu_bo_unmap_pages_locked,
};

static int __must_check ivpu_bo_alloc_and_map_pages_locked(struct ivpu_bo *bo)
{
	struct ivpu_device *vdev = ivpu_bo_to_vdev(bo);
	int ret;

	lockdep_assert_held(&bo->lock);
	drm_WARN_ON(&vdev->drm, bo->sgt);

	ret = bo->ops->alloc_pages(bo);
	if (ret) {
		ivpu_err(vdev, "Failed to allocate pages for BO: %d", ret);
		return ret;
	}

	ret = bo->ops->map_pages(bo);
	if (ret) {
		ivpu_err(vdev, "Failed to map pages for BO: %d", ret);
		goto err_free_pages;
	}
	return ret;

err_free_pages:
	bo->ops->free_pages(bo);
	return ret;
}

static void ivpu_bo_unmap_and_free_pages(struct ivpu_bo *bo)
{
	mutex_lock(&bo->lock);

	WARN_ON(!bo->sgt);
	bo->ops->unmap_pages(bo);
	WARN_ON(bo->sgt);
	bo->ops->free_pages(bo);
	WARN_ON(bo->pages);

	mutex_unlock(&bo->lock);
}

/*
 * ivpu_bo_pin() - pin the backing physical pages and map them to VPU.
 *
 * This function pins physical memory pages, then maps the physical pages
 * to IOMMU address space and finally updates the VPU MMU page tables
 * to allow the VPU to translate VPU address to IOMMU address.
 */
int __must_check ivpu_bo_pin(struct ivpu_bo *bo)
{
	struct ivpu_device *vdev = ivpu_bo_to_vdev(bo);
	int ret = 0;

	mutex_lock(&bo->lock);

	if (!bo->vpu_addr) {
		ivpu_err(vdev, "vpu_addr not set for BO ctx_id: %d handle: %d\n",
			 bo->ctx->id, bo->handle);
		ret = -EINVAL;
		goto unlock;
	}

	if (!bo->sgt) {
		ret = ivpu_bo_alloc_and_map_pages_locked(bo);
		if (ret)
			goto unlock;
	}

	if (!bo->mmu_mapped) {
		ret = ivpu_mmu_context_map_sgt(vdev, bo->ctx, bo->vpu_addr, bo->sgt,
					       ivpu_bo_is_snooped(bo));
		if (ret) {
			ivpu_err(vdev, "Failed to map BO in MMU: %d\n", ret);
			goto unlock;
		}
		bo->mmu_mapped = true;
	}

unlock:
	mutex_unlock(&bo->lock);

	return ret;
}

static int
ivpu_bo_alloc_vpu_addr(struct ivpu_bo *bo, struct ivpu_mmu_context *ctx,
		       const struct ivpu_addr_range *range)
{
	struct ivpu_device *vdev = ivpu_bo_to_vdev(bo);
	int ret;

	if (!range) {
		if (bo->flags & DRM_IVPU_BO_SHAVE_MEM)
			range = &vdev->hw->ranges.shave;
		else if (bo->flags & DRM_IVPU_BO_DMA_MEM)
			range = &vdev->hw->ranges.dma;
		else
			range = &vdev->hw->ranges.user;
	}

	mutex_lock(&ctx->lock);
	ret = ivpu_mmu_context_insert_node_locked(ctx, range, ivpu_bo_size(bo), &bo->mm_node);
	if (!ret) {
		bo->ctx = ctx;
		bo->vpu_addr = bo->mm_node.start;
		list_add_tail(&bo->ctx_node, &ctx->bo_list);
	}
	mutex_unlock(&ctx->lock);

	return ret;
}

static void ivpu_bo_free_vpu_addr(struct ivpu_bo *bo)
{
	struct ivpu_device *vdev = ivpu_bo_to_vdev(bo);
	struct ivpu_mmu_context *ctx = bo->ctx;

	ivpu_dbg(vdev, BO, "remove from ctx: ctx %d vpu_addr 0x%llx allocated %d mmu_mapped %d\n",
		 ctx->id, bo->vpu_addr, (bool)bo->sgt, bo->mmu_mapped);

	mutex_lock(&bo->lock);

	if (bo->mmu_mapped) {
		drm_WARN_ON(&vdev->drm, !bo->sgt);
		ivpu_mmu_context_unmap_sgt(vdev, ctx, bo->vpu_addr, bo->sgt);
		bo->mmu_mapped = false;
	}

	mutex_lock(&ctx->lock);
	list_del(&bo->ctx_node);
	bo->vpu_addr = 0;
	bo->ctx = NULL;
	ivpu_mmu_context_remove_node_locked(ctx, &bo->mm_node);
	mutex_unlock(&ctx->lock);

	mutex_unlock(&bo->lock);
}

void ivpu_bo_remove_all_bos_from_context(struct ivpu_mmu_context *ctx)
{
	struct ivpu_bo *bo, *tmp;

	list_for_each_entry_safe(bo, tmp, &ctx->bo_list, ctx_node)
		ivpu_bo_free_vpu_addr(bo);
}

static struct ivpu_bo *
ivpu_bo_alloc(struct ivpu_device *vdev, struct ivpu_mmu_context *mmu_context,
	      u64 size, u32 flags, const struct ivpu_bo_ops *ops,
	      const struct ivpu_addr_range *range, u64 user_ptr)
{
	struct ivpu_bo *bo;
	int ret = 0;

	if (drm_WARN_ON(&vdev->drm, size == 0 || !PAGE_ALIGNED(size)))
		return ERR_PTR(-EINVAL);

	switch (flags & DRM_IVPU_BO_CACHE_MASK) {
	case DRM_IVPU_BO_CACHED:
	case DRM_IVPU_BO_UNCACHED:
	case DRM_IVPU_BO_WC:
		break;
	default:
		return ERR_PTR(-EINVAL);
	}

	bo = kzalloc(sizeof(*bo), GFP_KERNEL);
	if (!bo)
		return ERR_PTR(-ENOMEM);

	mutex_init(&bo->lock);
	bo->base.funcs = &ivpu_gem_funcs;
	bo->flags = flags;
	bo->ops = ops;
	bo->user_ptr = user_ptr;

	if (ops->type == IVPU_BO_TYPE_SHMEM)
		ret = drm_gem_object_init(&vdev->drm, &bo->base, size);
	else
		drm_gem_private_object_init(&vdev->drm, &bo->base, size);

	if (ret) {
		ivpu_err(vdev, "Failed to initialize drm object\n");
		goto err_free;
	}

	if (flags & DRM_IVPU_BO_MAPPABLE) {
		ret = drm_gem_create_mmap_offset(&bo->base);
		if (ret) {
			ivpu_err(vdev, "Failed to allocate mmap offset\n");
			goto err_release;
		}
	}

	if (mmu_context) {
		ret = ivpu_bo_alloc_vpu_addr(bo, mmu_context, range);
		if (ret) {
			ivpu_err(vdev, "Failed to add BO to context: %d\n", ret);
			goto err_release;
		}
	}

	return bo;

err_release:
	drm_gem_object_release(&bo->base);
err_free:
	kfree(bo);
	return ERR_PTR(ret);
}

static void ivpu_bo_free(struct drm_gem_object *obj)
{
	struct ivpu_bo *bo = to_ivpu_bo(obj);
	struct ivpu_device *vdev = ivpu_bo_to_vdev(bo);

	if (bo->ctx)
		ivpu_dbg(vdev, BO, "free: ctx %d vpu_addr 0x%llx allocated %d mmu_mapped %d\n",
			 bo->ctx->id, bo->vpu_addr, (bool)bo->sgt, bo->mmu_mapped);
	else
		ivpu_dbg(vdev, BO, "free: ctx (released) allocated %d mmu_mapped %d\n",
			 (bool)bo->sgt, bo->mmu_mapped);

	drm_WARN_ON(&vdev->drm, !dma_resv_test_signaled(obj->resv, DMA_RESV_USAGE_READ));

	vunmap(bo->kvaddr);

	if (bo->ctx)
		ivpu_bo_free_vpu_addr(bo);

	if (bo->sgt)
		ivpu_bo_unmap_and_free_pages(bo);

	if (bo->base.import_attach)
		drm_prime_gem_destroy(&bo->base, bo->sgt);

	drm_gem_object_release(&bo->base);

	mutex_destroy(&bo->lock);
	kfree(bo);
}

static int ivpu_bo_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma)
{
	struct ivpu_bo *bo = to_ivpu_bo(obj);
	struct ivpu_device *vdev = ivpu_bo_to_vdev(bo);

	ivpu_dbg(vdev, BO, "mmap: ctx %u handle %u vpu_addr 0x%llx size %zu type %s",
		 bo->ctx->id, bo->handle, bo->vpu_addr, ivpu_bo_size(bo), bo->ops->name);

	if (obj->import_attach) {
		/* Drop the reference drm_gem_mmap_obj() acquired.*/
		drm_gem_object_put(obj);
		vma->vm_private_data = NULL;
		return dma_buf_mmap(obj->dma_buf, vma, 0);
	}

	vm_flags_set(vma, VM_PFNMAP | VM_DONTEXPAND);
	vma->vm_page_prot = ivpu_bo_pgprot(bo, vm_get_page_prot(vma->vm_flags));

	return 0;
}

static struct sg_table *ivpu_bo_get_sg_table(struct drm_gem_object *obj)
{
	struct ivpu_bo *bo = to_ivpu_bo(obj);
	loff_t npages = obj->size >> PAGE_SHIFT;
	int ret = 0;

	mutex_lock(&bo->lock);

	if (!bo->sgt)
		ret = ivpu_bo_alloc_and_map_pages_locked(bo);

	mutex_unlock(&bo->lock);

	if (ret)
		return ERR_PTR(ret);

	return drm_prime_pages_to_sg(obj->dev, bo->pages, npages);
}

static vm_fault_t ivpu_vm_fault(struct vm_fault *vmf)
{
	struct vm_area_struct *vma = vmf->vma;
	struct drm_gem_object *obj = vma->vm_private_data;
	struct ivpu_bo *bo = to_ivpu_bo(obj);
	loff_t npages = obj->size >> PAGE_SHIFT;
	pgoff_t page_offset;
	struct page *page;
	vm_fault_t ret;
	int err;

	mutex_lock(&bo->lock);

	if (!bo->sgt) {
		err = ivpu_bo_alloc_and_map_pages_locked(bo);
		if (err) {
			ret = vmf_error(err);
			goto unlock;
		}
	}

	/* We don't use vmf->pgoff since that has the fake offset */
	page_offset = (vmf->address - vma->vm_start) >> PAGE_SHIFT;
	if (page_offset >= npages) {
		ret = VM_FAULT_SIGBUS;
	} else {
		page = bo->pages[page_offset];
		ret = vmf_insert_pfn(vma, vmf->address, page_to_pfn(page));
	}

unlock:
	mutex_unlock(&bo->lock);

	return ret;
}

static const struct vm_operations_struct ivpu_vm_ops = {
	.fault = ivpu_vm_fault,
	.open = drm_gem_vm_open,
	.close = drm_gem_vm_close,
};

static const struct drm_gem_object_funcs ivpu_gem_funcs = {
	.free = ivpu_bo_free,
	.mmap = ivpu_bo_mmap,
	.vm_ops = &ivpu_vm_ops,
	.get_sg_table = ivpu_bo_get_sg_table,
};

int
ivpu_bo_create_ioctl(struct drm_device *dev, void *data, struct drm_file *file)
{
	struct ivpu_file_priv *file_priv = file->driver_priv;
	struct ivpu_device *vdev = file_priv->vdev;
	struct drm_ivpu_bo_create *args = data;
	u64 size = PAGE_ALIGN(args->size);
	struct ivpu_bo *bo;
	int ret;

	if (args->flags & ~DRM_IVPU_BO_FLAGS)
		return -EINVAL;

	if (size == 0)
		return -EINVAL;

	bo = ivpu_bo_alloc(vdev, &file_priv->ctx, size, args->flags, &shmem_ops, NULL, 0);
	if (IS_ERR(bo)) {
		ivpu_err(vdev, "Failed to create BO: %pe (ctx %u size %llu flags 0x%x)",
			 bo, file_priv->ctx.id, args->size, args->flags);
		return PTR_ERR(bo);
	}

	ret = drm_gem_handle_create(file, &bo->base, &bo->handle);
	if (!ret) {
		args->vpu_addr = bo->vpu_addr;
		args->handle = bo->handle;
	}

	drm_gem_object_put(&bo->base);

	ivpu_dbg(vdev, BO, "alloc shmem: ctx %u vpu_addr 0x%llx size %zu flags 0x%x\n",
		 file_priv->ctx.id, bo->vpu_addr, ivpu_bo_size(bo), bo->flags);

	return ret;
}

struct ivpu_bo *
ivpu_bo_alloc_internal(struct ivpu_device *vdev, u64 vpu_addr, u64 size, u32 flags)
{
	const struct ivpu_addr_range *range;
	struct ivpu_addr_range fixed_range;
	struct ivpu_bo *bo;
	pgprot_t prot;
	int ret;

	drm_WARN_ON(&vdev->drm, !PAGE_ALIGNED(vpu_addr));
	drm_WARN_ON(&vdev->drm, !PAGE_ALIGNED(size));

	if (vpu_addr) {
		fixed_range.start = vpu_addr;
		fixed_range.end = vpu_addr + size;
		range = &fixed_range;
	} else {
		range = &vdev->hw->ranges.global;
	}

	bo = ivpu_bo_alloc(vdev, &vdev->gctx, size, flags, &internal_ops, range, 0);
	if (IS_ERR(bo)) {
		ivpu_err(vdev, "Failed to create BO: %pe (vpu_addr 0x%llx size %llu flags 0x%x)",
			 bo, vpu_addr, size, flags);
		return NULL;
	}

	ret = ivpu_bo_pin(bo);
	if (ret)
		goto err_put;

	if (ivpu_bo_cache_mode(bo) != DRM_IVPU_BO_CACHED)
		drm_clflush_pages(bo->pages, ivpu_bo_size(bo) >> PAGE_SHIFT);

	if (bo->flags & DRM_IVPU_BO_WC)
		set_pages_array_wc(bo->pages, ivpu_bo_size(bo) >> PAGE_SHIFT);
	else if (bo->flags & DRM_IVPU_BO_UNCACHED)
		set_pages_array_uc(bo->pages, ivpu_bo_size(bo) >> PAGE_SHIFT);

	prot = ivpu_bo_pgprot(bo, PAGE_KERNEL);
	bo->kvaddr = vmap(bo->pages, ivpu_bo_size(bo) >> PAGE_SHIFT, VM_MAP, prot);
	if (!bo->kvaddr) {
		ivpu_err(vdev, "Failed to map BO into kernel virtual memory\n");
		goto err_put;
	}

	ivpu_dbg(vdev, BO, "alloc internal: ctx 0 vpu_addr 0x%llx size %zu flags 0x%x\n",
		 bo->vpu_addr, ivpu_bo_size(bo), flags);

	return bo;

err_put:
	drm_gem_object_put(&bo->base);
	return NULL;
}

void ivpu_bo_free_internal(struct ivpu_bo *bo)
{
	drm_gem_object_put(&bo->base);
}

struct drm_gem_object *ivpu_gem_prime_import(struct drm_device *dev, struct dma_buf *buf)
{
	struct ivpu_device *vdev = to_ivpu_device(dev);
	struct dma_buf_attachment *attach;
	struct ivpu_bo *bo;

	attach = dma_buf_attach(buf, dev->dev);
	if (IS_ERR(attach))
		return ERR_CAST(attach);

	get_dma_buf(buf);

	bo = ivpu_bo_alloc(vdev, NULL, buf->size, DRM_IVPU_BO_MAPPABLE, &prime_ops, NULL, 0);
	if (IS_ERR(bo)) {
		ivpu_err(vdev, "Failed to import BO: %pe (size %lu)", bo, buf->size);
		goto err_detach;
	}

	lockdep_set_class(&bo->lock, &prime_bo_lock_class_key);

	bo->base.import_attach = attach;

	return &bo->base;

err_detach:
	dma_buf_detach(buf, attach);
	dma_buf_put(buf);
	return ERR_CAST(bo);
}

int ivpu_bo_info_ioctl(struct drm_device *dev, void *data, struct drm_file *file)
{
	struct ivpu_file_priv *file_priv = file->driver_priv;
	struct ivpu_device *vdev = to_ivpu_device(dev);
	struct drm_ivpu_bo_info *args = data;
	struct drm_gem_object *obj;
	struct ivpu_bo *bo;
	int ret = 0;

	obj = drm_gem_object_lookup(file, args->handle);
	if (!obj)
		return -ENOENT;

	bo = to_ivpu_bo(obj);

	mutex_lock(&bo->lock);

	if (!bo->ctx) {
		ret = ivpu_bo_alloc_vpu_addr(bo, &file_priv->ctx, NULL);
		if (ret) {
			ivpu_err(vdev, "Failed to allocate vpu_addr: %d\n", ret);
			goto unlock;
		}
	}

	args->flags = bo->flags;
	args->mmap_offset = drm_vma_node_offset_addr(&obj->vma_node);
	args->vpu_addr = bo->vpu_addr;
	args->size = obj->size;
unlock:
	mutex_unlock(&bo->lock);
	drm_gem_object_put(obj);
	return ret;
}

int ivpu_bo_wait_ioctl(struct drm_device *dev, void *data, struct drm_file *file)
{
	struct drm_ivpu_bo_wait *args = data;
	struct drm_gem_object *obj;
	unsigned long timeout;
	long ret;

	timeout = drm_timeout_abs_to_jiffies(args->timeout_ns);

	obj = drm_gem_object_lookup(file, args->handle);
	if (!obj)
		return -EINVAL;

	ret = dma_resv_wait_timeout(obj->resv, DMA_RESV_USAGE_READ, true, timeout);
	if (ret == 0) {
		ret = -ETIMEDOUT;
	} else if (ret > 0) {
		ret = 0;
		args->job_status = to_ivpu_bo(obj)->job_status;
	}

	drm_gem_object_put(obj);

	return ret;
}

static void ivpu_bo_print_info(struct ivpu_bo *bo, struct drm_printer *p)
{
	unsigned long dma_refcount = 0;

	if (bo->base.dma_buf && bo->base.dma_buf->file)
		dma_refcount = atomic_long_read(&bo->base.dma_buf->file->f_count);

	drm_printf(p, "%5u %6d %16llx %10lu %10u %12lu %14s\n",
		   bo->ctx->id, bo->handle, bo->vpu_addr, ivpu_bo_size(bo),
		   kref_read(&bo->base.refcount), dma_refcount, bo->ops->name);
}

void ivpu_bo_list(struct drm_device *dev, struct drm_printer *p)
{
	struct ivpu_device *vdev = to_ivpu_device(dev);
	struct ivpu_file_priv *file_priv;
	unsigned long ctx_id;
	struct ivpu_bo *bo;

	drm_printf(p, "%5s %6s %16s %10s %10s %12s %14s\n",
		   "ctx", "handle", "vpu_addr", "size", "refcount", "dma_refcount", "type");

	mutex_lock(&vdev->gctx.lock);
	list_for_each_entry(bo, &vdev->gctx.bo_list, ctx_node)
		ivpu_bo_print_info(bo, p);
	mutex_unlock(&vdev->gctx.lock);

	xa_for_each(&vdev->context_xa, ctx_id, file_priv) {
		file_priv = ivpu_file_priv_get_by_ctx_id(vdev, ctx_id);
		if (!file_priv)
			continue;

		mutex_lock(&file_priv->ctx.lock);
		list_for_each_entry(bo, &file_priv->ctx.bo_list, ctx_node)
			ivpu_bo_print_info(bo, p);
		mutex_unlock(&file_priv->ctx.lock);

		ivpu_file_priv_put(&file_priv);
	}
}

void ivpu_bo_list_print(struct drm_device *dev)
{
	struct drm_printer p = drm_info_printer(dev->dev);

	ivpu_bo_list(dev, &p);
}