1
2
3
4
5
6#include <drm/drm_prime.h>
7#include <linux/dma-mapping.h>
8#include <linux/shmem_fs.h>
9#include <linux/spinlock.h>
10#include <linux/vmalloc.h>
11
12#include "etnaviv_drv.h"
13#include "etnaviv_gem.h"
14#include "etnaviv_gpu.h"
15#include "etnaviv_mmu.h"
16
17static struct lock_class_key etnaviv_shm_lock_class;
18static struct lock_class_key etnaviv_userptr_lock_class;
19
20static void etnaviv_gem_scatter_map(struct etnaviv_gem_object *etnaviv_obj)
21{
22 struct drm_device *dev = etnaviv_obj->base.dev;
23 struct sg_table *sgt = etnaviv_obj->sgt;
24
25
26
27
28
29 if (etnaviv_obj->flags & ETNA_BO_CACHE_MASK)
30 dma_map_sgtable(dev->dev, sgt, DMA_BIDIRECTIONAL, 0);
31}
32
33static void etnaviv_gem_scatterlist_unmap(struct etnaviv_gem_object *etnaviv_obj)
34{
35 struct drm_device *dev = etnaviv_obj->base.dev;
36 struct sg_table *sgt = etnaviv_obj->sgt;
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53 if (etnaviv_obj->flags & ETNA_BO_CACHE_MASK)
54 dma_unmap_sgtable(dev->dev, sgt, DMA_BIDIRECTIONAL, 0);
55}
56
57
58static int etnaviv_gem_shmem_get_pages(struct etnaviv_gem_object *etnaviv_obj)
59{
60 struct drm_device *dev = etnaviv_obj->base.dev;
61 struct page **p = drm_gem_get_pages(&etnaviv_obj->base);
62
63 if (IS_ERR(p)) {
64 dev_dbg(dev->dev, "could not get pages: %ld\n", PTR_ERR(p));
65 return PTR_ERR(p);
66 }
67
68 etnaviv_obj->pages = p;
69
70 return 0;
71}
72
73static void put_pages(struct etnaviv_gem_object *etnaviv_obj)
74{
75 if (etnaviv_obj->sgt) {
76 etnaviv_gem_scatterlist_unmap(etnaviv_obj);
77 sg_free_table(etnaviv_obj->sgt);
78 kfree(etnaviv_obj->sgt);
79 etnaviv_obj->sgt = NULL;
80 }
81 if (etnaviv_obj->pages) {
82 drm_gem_put_pages(&etnaviv_obj->base, etnaviv_obj->pages,
83 true, false);
84
85 etnaviv_obj->pages = NULL;
86 }
87}
88
89struct page **etnaviv_gem_get_pages(struct etnaviv_gem_object *etnaviv_obj)
90{
91 int ret;
92
93 lockdep_assert_held(&etnaviv_obj->lock);
94
95 if (!etnaviv_obj->pages) {
96 ret = etnaviv_obj->ops->get_pages(etnaviv_obj);
97 if (ret < 0)
98 return ERR_PTR(ret);
99 }
100
101 if (!etnaviv_obj->sgt) {
102 struct drm_device *dev = etnaviv_obj->base.dev;
103 int npages = etnaviv_obj->base.size >> PAGE_SHIFT;
104 struct sg_table *sgt;
105
106 sgt = drm_prime_pages_to_sg(etnaviv_obj->base.dev,
107 etnaviv_obj->pages, npages);
108 if (IS_ERR(sgt)) {
109 dev_err(dev->dev, "failed to allocate sgt: %ld\n",
110 PTR_ERR(sgt));
111 return ERR_CAST(sgt);
112 }
113
114 etnaviv_obj->sgt = sgt;
115
116 etnaviv_gem_scatter_map(etnaviv_obj);
117 }
118
119 return etnaviv_obj->pages;
120}
121
122void etnaviv_gem_put_pages(struct etnaviv_gem_object *etnaviv_obj)
123{
124 lockdep_assert_held(&etnaviv_obj->lock);
125
126}
127
128static int etnaviv_gem_mmap_obj(struct etnaviv_gem_object *etnaviv_obj,
129 struct vm_area_struct *vma)
130{
131 pgprot_t vm_page_prot;
132
133 vma->vm_flags |= VM_IO | VM_MIXEDMAP | VM_DONTEXPAND | VM_DONTDUMP;
134
135 vm_page_prot = vm_get_page_prot(vma->vm_flags);
136
137 if (etnaviv_obj->flags & ETNA_BO_WC) {
138 vma->vm_page_prot = pgprot_writecombine(vm_page_prot);
139 } else if (etnaviv_obj->flags & ETNA_BO_UNCACHED) {
140 vma->vm_page_prot = pgprot_noncached(vm_page_prot);
141 } else {
142
143
144
145
146
147 vma->vm_pgoff = 0;
148 vma_set_file(vma, etnaviv_obj->base.filp);
149
150 vma->vm_page_prot = vm_page_prot;
151 }
152
153 return 0;
154}
155
156static int etnaviv_gem_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma)
157{
158 struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
159
160 return etnaviv_obj->ops->mmap(etnaviv_obj, vma);
161}
162
163static vm_fault_t etnaviv_gem_fault(struct vm_fault *vmf)
164{
165 struct vm_area_struct *vma = vmf->vma;
166 struct drm_gem_object *obj = vma->vm_private_data;
167 struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
168 struct page **pages, *page;
169 pgoff_t pgoff;
170 int err;
171
172
173
174
175
176
177 err = mutex_lock_interruptible(&etnaviv_obj->lock);
178 if (err)
179 return VM_FAULT_NOPAGE;
180
181 pages = etnaviv_gem_get_pages(etnaviv_obj);
182 mutex_unlock(&etnaviv_obj->lock);
183
184 if (IS_ERR(pages)) {
185 err = PTR_ERR(pages);
186 return vmf_error(err);
187 }
188
189
190 pgoff = (vmf->address - vma->vm_start) >> PAGE_SHIFT;
191
192 page = pages[pgoff];
193
194 VERB("Inserting %p pfn %lx, pa %lx", (void *)vmf->address,
195 page_to_pfn(page), page_to_pfn(page) << PAGE_SHIFT);
196
197 return vmf_insert_page(vma, vmf->address, page);
198}
199
200int etnaviv_gem_mmap_offset(struct drm_gem_object *obj, u64 *offset)
201{
202 int ret;
203
204
205 ret = drm_gem_create_mmap_offset(obj);
206 if (ret)
207 dev_err(obj->dev->dev, "could not allocate mmap offset\n");
208 else
209 *offset = drm_vma_node_offset_addr(&obj->vma_node);
210
211 return ret;
212}
213
214static struct etnaviv_vram_mapping *
215etnaviv_gem_get_vram_mapping(struct etnaviv_gem_object *obj,
216 struct etnaviv_iommu_context *context)
217{
218 struct etnaviv_vram_mapping *mapping;
219
220 list_for_each_entry(mapping, &obj->vram_list, obj_node) {
221 if (mapping->context == context)
222 return mapping;
223 }
224
225 return NULL;
226}
227
228void etnaviv_gem_mapping_unreference(struct etnaviv_vram_mapping *mapping)
229{
230 struct etnaviv_gem_object *etnaviv_obj = mapping->object;
231
232 mutex_lock(&etnaviv_obj->lock);
233 WARN_ON(mapping->use == 0);
234 mapping->use -= 1;
235 mutex_unlock(&etnaviv_obj->lock);
236
237 drm_gem_object_put(&etnaviv_obj->base);
238}
239
240struct etnaviv_vram_mapping *etnaviv_gem_mapping_get(
241 struct drm_gem_object *obj, struct etnaviv_iommu_context *mmu_context,
242 u64 va)
243{
244 struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
245 struct etnaviv_vram_mapping *mapping;
246 struct page **pages;
247 int ret = 0;
248
249 mutex_lock(&etnaviv_obj->lock);
250 mapping = etnaviv_gem_get_vram_mapping(etnaviv_obj, mmu_context);
251 if (mapping) {
252
253
254
255
256
257
258 if (mapping->use == 0) {
259 mutex_lock(&mmu_context->lock);
260 if (mapping->context == mmu_context)
261 mapping->use += 1;
262 else
263 mapping = NULL;
264 mutex_unlock(&mmu_context->lock);
265 if (mapping)
266 goto out;
267 } else {
268 mapping->use += 1;
269 goto out;
270 }
271 }
272
273 pages = etnaviv_gem_get_pages(etnaviv_obj);
274 if (IS_ERR(pages)) {
275 ret = PTR_ERR(pages);
276 goto out;
277 }
278
279
280
281
282
283 mapping = etnaviv_gem_get_vram_mapping(etnaviv_obj, NULL);
284 if (!mapping) {
285 mapping = kzalloc(sizeof(*mapping), GFP_KERNEL);
286 if (!mapping) {
287 ret = -ENOMEM;
288 goto out;
289 }
290
291 INIT_LIST_HEAD(&mapping->scan_node);
292 mapping->object = etnaviv_obj;
293 } else {
294 list_del(&mapping->obj_node);
295 }
296
297 mapping->context = etnaviv_iommu_context_get(mmu_context);
298 mapping->use = 1;
299
300 ret = etnaviv_iommu_map_gem(mmu_context, etnaviv_obj,
301 mmu_context->global->memory_base,
302 mapping, va);
303 if (ret < 0) {
304 etnaviv_iommu_context_put(mmu_context);
305 kfree(mapping);
306 } else {
307 list_add_tail(&mapping->obj_node, &etnaviv_obj->vram_list);
308 }
309
310out:
311 mutex_unlock(&etnaviv_obj->lock);
312
313 if (ret)
314 return ERR_PTR(ret);
315
316
317 drm_gem_object_get(obj);
318 return mapping;
319}
320
321void *etnaviv_gem_vmap(struct drm_gem_object *obj)
322{
323 struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
324
325 if (etnaviv_obj->vaddr)
326 return etnaviv_obj->vaddr;
327
328 mutex_lock(&etnaviv_obj->lock);
329
330
331
332
333 if (!etnaviv_obj->vaddr)
334 etnaviv_obj->vaddr = etnaviv_obj->ops->vmap(etnaviv_obj);
335 mutex_unlock(&etnaviv_obj->lock);
336
337 return etnaviv_obj->vaddr;
338}
339
340static void *etnaviv_gem_vmap_impl(struct etnaviv_gem_object *obj)
341{
342 struct page **pages;
343
344 lockdep_assert_held(&obj->lock);
345
346 pages = etnaviv_gem_get_pages(obj);
347 if (IS_ERR(pages))
348 return NULL;
349
350 return vmap(pages, obj->base.size >> PAGE_SHIFT,
351 VM_MAP, pgprot_writecombine(PAGE_KERNEL));
352}
353
354static inline enum dma_data_direction etnaviv_op_to_dma_dir(u32 op)
355{
356 if (op & ETNA_PREP_READ)
357 return DMA_FROM_DEVICE;
358 else if (op & ETNA_PREP_WRITE)
359 return DMA_TO_DEVICE;
360 else
361 return DMA_BIDIRECTIONAL;
362}
363
364int etnaviv_gem_cpu_prep(struct drm_gem_object *obj, u32 op,
365 struct drm_etnaviv_timespec *timeout)
366{
367 struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
368 struct drm_device *dev = obj->dev;
369 bool write = !!(op & ETNA_PREP_WRITE);
370 int ret;
371
372 if (!etnaviv_obj->sgt) {
373 void *ret;
374
375 mutex_lock(&etnaviv_obj->lock);
376 ret = etnaviv_gem_get_pages(etnaviv_obj);
377 mutex_unlock(&etnaviv_obj->lock);
378 if (IS_ERR(ret))
379 return PTR_ERR(ret);
380 }
381
382 if (op & ETNA_PREP_NOSYNC) {
383 if (!dma_resv_test_signaled(obj->resv, write))
384 return -EBUSY;
385 } else {
386 unsigned long remain = etnaviv_timeout_to_jiffies(timeout);
387
388 ret = dma_resv_wait_timeout(obj->resv, write, true, remain);
389 if (ret <= 0)
390 return ret == 0 ? -ETIMEDOUT : ret;
391 }
392
393 if (etnaviv_obj->flags & ETNA_BO_CACHED) {
394 dma_sync_sgtable_for_cpu(dev->dev, etnaviv_obj->sgt,
395 etnaviv_op_to_dma_dir(op));
396 etnaviv_obj->last_cpu_prep_op = op;
397 }
398
399 return 0;
400}
401
402int etnaviv_gem_cpu_fini(struct drm_gem_object *obj)
403{
404 struct drm_device *dev = obj->dev;
405 struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
406
407 if (etnaviv_obj->flags & ETNA_BO_CACHED) {
408
409 WARN_ON(etnaviv_obj->last_cpu_prep_op == 0);
410 dma_sync_sgtable_for_device(dev->dev, etnaviv_obj->sgt,
411 etnaviv_op_to_dma_dir(etnaviv_obj->last_cpu_prep_op));
412 etnaviv_obj->last_cpu_prep_op = 0;
413 }
414
415 return 0;
416}
417
418int etnaviv_gem_wait_bo(struct etnaviv_gpu *gpu, struct drm_gem_object *obj,
419 struct drm_etnaviv_timespec *timeout)
420{
421 struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
422
423 return etnaviv_gpu_wait_obj_inactive(gpu, etnaviv_obj, timeout);
424}
425
426#ifdef CONFIG_DEBUG_FS
427static void etnaviv_gem_describe_fence(struct dma_fence *fence,
428 const char *type, struct seq_file *m)
429{
430 if (!test_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &fence->flags))
431 seq_printf(m, "\t%9s: %s %s seq %llu\n",
432 type,
433 fence->ops->get_driver_name(fence),
434 fence->ops->get_timeline_name(fence),
435 fence->seqno);
436}
437
438static void etnaviv_gem_describe(struct drm_gem_object *obj, struct seq_file *m)
439{
440 struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
441 struct dma_resv *robj = obj->resv;
442 struct dma_resv_list *fobj;
443 struct dma_fence *fence;
444 unsigned long off = drm_vma_node_start(&obj->vma_node);
445
446 seq_printf(m, "%08x: %c %2d (%2d) %08lx %p %zd\n",
447 etnaviv_obj->flags, is_active(etnaviv_obj) ? 'A' : 'I',
448 obj->name, kref_read(&obj->refcount),
449 off, etnaviv_obj->vaddr, obj->size);
450
451 rcu_read_lock();
452 fobj = dma_resv_shared_list(robj);
453 if (fobj) {
454 unsigned int i, shared_count = fobj->shared_count;
455
456 for (i = 0; i < shared_count; i++) {
457 fence = rcu_dereference(fobj->shared[i]);
458 etnaviv_gem_describe_fence(fence, "Shared", m);
459 }
460 }
461
462 fence = dma_resv_excl_fence(robj);
463 if (fence)
464 etnaviv_gem_describe_fence(fence, "Exclusive", m);
465 rcu_read_unlock();
466}
467
468void etnaviv_gem_describe_objects(struct etnaviv_drm_private *priv,
469 struct seq_file *m)
470{
471 struct etnaviv_gem_object *etnaviv_obj;
472 int count = 0;
473 size_t size = 0;
474
475 mutex_lock(&priv->gem_lock);
476 list_for_each_entry(etnaviv_obj, &priv->gem_list, gem_node) {
477 struct drm_gem_object *obj = &etnaviv_obj->base;
478
479 seq_puts(m, " ");
480 etnaviv_gem_describe(obj, m);
481 count++;
482 size += obj->size;
483 }
484 mutex_unlock(&priv->gem_lock);
485
486 seq_printf(m, "Total %d objects, %zu bytes\n", count, size);
487}
488#endif
489
490static void etnaviv_gem_shmem_release(struct etnaviv_gem_object *etnaviv_obj)
491{
492 vunmap(etnaviv_obj->vaddr);
493 put_pages(etnaviv_obj);
494}
495
496static const struct etnaviv_gem_ops etnaviv_gem_shmem_ops = {
497 .get_pages = etnaviv_gem_shmem_get_pages,
498 .release = etnaviv_gem_shmem_release,
499 .vmap = etnaviv_gem_vmap_impl,
500 .mmap = etnaviv_gem_mmap_obj,
501};
502
503void etnaviv_gem_free_object(struct drm_gem_object *obj)
504{
505 struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
506 struct etnaviv_drm_private *priv = obj->dev->dev_private;
507 struct etnaviv_vram_mapping *mapping, *tmp;
508
509
510 WARN_ON(is_active(etnaviv_obj));
511
512 mutex_lock(&priv->gem_lock);
513 list_del(&etnaviv_obj->gem_node);
514 mutex_unlock(&priv->gem_lock);
515
516 list_for_each_entry_safe(mapping, tmp, &etnaviv_obj->vram_list,
517 obj_node) {
518 struct etnaviv_iommu_context *context = mapping->context;
519
520 WARN_ON(mapping->use);
521
522 if (context) {
523 etnaviv_iommu_unmap_gem(context, mapping);
524 etnaviv_iommu_context_put(context);
525 }
526
527 list_del(&mapping->obj_node);
528 kfree(mapping);
529 }
530
531 drm_gem_free_mmap_offset(obj);
532 etnaviv_obj->ops->release(etnaviv_obj);
533 drm_gem_object_release(obj);
534
535 kfree(etnaviv_obj);
536}
537
538void etnaviv_gem_obj_add(struct drm_device *dev, struct drm_gem_object *obj)
539{
540 struct etnaviv_drm_private *priv = dev->dev_private;
541 struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
542
543 mutex_lock(&priv->gem_lock);
544 list_add_tail(&etnaviv_obj->gem_node, &priv->gem_list);
545 mutex_unlock(&priv->gem_lock);
546}
547
548static const struct vm_operations_struct vm_ops = {
549 .fault = etnaviv_gem_fault,
550 .open = drm_gem_vm_open,
551 .close = drm_gem_vm_close,
552};
553
554static const struct drm_gem_object_funcs etnaviv_gem_object_funcs = {
555 .free = etnaviv_gem_free_object,
556 .pin = etnaviv_gem_prime_pin,
557 .unpin = etnaviv_gem_prime_unpin,
558 .get_sg_table = etnaviv_gem_prime_get_sg_table,
559 .vmap = etnaviv_gem_prime_vmap,
560 .mmap = etnaviv_gem_mmap,
561 .vm_ops = &vm_ops,
562};
563
564static int etnaviv_gem_new_impl(struct drm_device *dev, u32 size, u32 flags,
565 const struct etnaviv_gem_ops *ops, struct drm_gem_object **obj)
566{
567 struct etnaviv_gem_object *etnaviv_obj;
568 unsigned sz = sizeof(*etnaviv_obj);
569 bool valid = true;
570
571
572 switch (flags & ETNA_BO_CACHE_MASK) {
573 case ETNA_BO_UNCACHED:
574 case ETNA_BO_CACHED:
575 case ETNA_BO_WC:
576 break;
577 default:
578 valid = false;
579 }
580
581 if (!valid) {
582 dev_err(dev->dev, "invalid cache flag: %x\n",
583 (flags & ETNA_BO_CACHE_MASK));
584 return -EINVAL;
585 }
586
587 etnaviv_obj = kzalloc(sz, GFP_KERNEL);
588 if (!etnaviv_obj)
589 return -ENOMEM;
590
591 etnaviv_obj->flags = flags;
592 etnaviv_obj->ops = ops;
593
594 mutex_init(&etnaviv_obj->lock);
595 INIT_LIST_HEAD(&etnaviv_obj->vram_list);
596
597 *obj = &etnaviv_obj->base;
598 (*obj)->funcs = &etnaviv_gem_object_funcs;
599
600 return 0;
601}
602
603
604int etnaviv_gem_new_handle(struct drm_device *dev, struct drm_file *file,
605 u32 size, u32 flags, u32 *handle)
606{
607 struct etnaviv_drm_private *priv = dev->dev_private;
608 struct drm_gem_object *obj = NULL;
609 int ret;
610
611 size = PAGE_ALIGN(size);
612
613 ret = etnaviv_gem_new_impl(dev, size, flags,
614 &etnaviv_gem_shmem_ops, &obj);
615 if (ret)
616 goto fail;
617
618 lockdep_set_class(&to_etnaviv_bo(obj)->lock, &etnaviv_shm_lock_class);
619
620 ret = drm_gem_object_init(dev, obj, size);
621 if (ret)
622 goto fail;
623
624
625
626
627
628
629
630 mapping_set_gfp_mask(obj->filp->f_mapping, priv->shm_gfp_mask);
631
632 etnaviv_gem_obj_add(dev, obj);
633
634 ret = drm_gem_handle_create(file, obj, handle);
635
636
637fail:
638 drm_gem_object_put(obj);
639
640 return ret;
641}
642
643int etnaviv_gem_new_private(struct drm_device *dev, size_t size, u32 flags,
644 const struct etnaviv_gem_ops *ops, struct etnaviv_gem_object **res)
645{
646 struct drm_gem_object *obj;
647 int ret;
648
649 ret = etnaviv_gem_new_impl(dev, size, flags, ops, &obj);
650 if (ret)
651 return ret;
652
653 drm_gem_private_object_init(dev, obj, size);
654
655 *res = to_etnaviv_bo(obj);
656
657 return 0;
658}
659
660static int etnaviv_gem_userptr_get_pages(struct etnaviv_gem_object *etnaviv_obj)
661{
662 struct page **pvec = NULL;
663 struct etnaviv_gem_userptr *userptr = &etnaviv_obj->userptr;
664 int ret, pinned = 0, npages = etnaviv_obj->base.size >> PAGE_SHIFT;
665
666 might_lock_read(¤t->mm->mmap_lock);
667
668 if (userptr->mm != current->mm)
669 return -EPERM;
670
671 pvec = kvmalloc_array(npages, sizeof(struct page *), GFP_KERNEL);
672 if (!pvec)
673 return -ENOMEM;
674
675 do {
676 unsigned num_pages = npages - pinned;
677 uint64_t ptr = userptr->ptr + pinned * PAGE_SIZE;
678 struct page **pages = pvec + pinned;
679
680 ret = pin_user_pages_fast(ptr, num_pages,
681 FOLL_WRITE | FOLL_FORCE | FOLL_LONGTERM,
682 pages);
683 if (ret < 0) {
684 unpin_user_pages(pvec, pinned);
685 kvfree(pvec);
686 return ret;
687 }
688
689 pinned += ret;
690
691 } while (pinned < npages);
692
693 etnaviv_obj->pages = pvec;
694
695 return 0;
696}
697
698static void etnaviv_gem_userptr_release(struct etnaviv_gem_object *etnaviv_obj)
699{
700 if (etnaviv_obj->sgt) {
701 etnaviv_gem_scatterlist_unmap(etnaviv_obj);
702 sg_free_table(etnaviv_obj->sgt);
703 kfree(etnaviv_obj->sgt);
704 }
705 if (etnaviv_obj->pages) {
706 int npages = etnaviv_obj->base.size >> PAGE_SHIFT;
707
708 unpin_user_pages(etnaviv_obj->pages, npages);
709 kvfree(etnaviv_obj->pages);
710 }
711}
712
713static int etnaviv_gem_userptr_mmap_obj(struct etnaviv_gem_object *etnaviv_obj,
714 struct vm_area_struct *vma)
715{
716 return -EINVAL;
717}
718
719static const struct etnaviv_gem_ops etnaviv_gem_userptr_ops = {
720 .get_pages = etnaviv_gem_userptr_get_pages,
721 .release = etnaviv_gem_userptr_release,
722 .vmap = etnaviv_gem_vmap_impl,
723 .mmap = etnaviv_gem_userptr_mmap_obj,
724};
725
726int etnaviv_gem_new_userptr(struct drm_device *dev, struct drm_file *file,
727 uintptr_t ptr, u32 size, u32 flags, u32 *handle)
728{
729 struct etnaviv_gem_object *etnaviv_obj;
730 int ret;
731
732 ret = etnaviv_gem_new_private(dev, size, ETNA_BO_CACHED,
733 &etnaviv_gem_userptr_ops, &etnaviv_obj);
734 if (ret)
735 return ret;
736
737 lockdep_set_class(&etnaviv_obj->lock, &etnaviv_userptr_lock_class);
738
739 etnaviv_obj->userptr.ptr = ptr;
740 etnaviv_obj->userptr.mm = current->mm;
741 etnaviv_obj->userptr.ro = !(flags & ETNA_USERPTR_WRITE);
742
743 etnaviv_gem_obj_add(dev, &etnaviv_obj->base);
744
745 ret = drm_gem_handle_create(file, &etnaviv_obj->base, handle);
746
747
748 drm_gem_object_put(&etnaviv_obj->base);
749 return ret;
750}
751