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27#include "nouveau_drv.h"
28#include "nouveau_dma.h"
29#include "nouveau_fence.h"
30#include "nouveau_abi16.h"
31
32#include "nouveau_ttm.h"
33#include "nouveau_gem.h"
34#include "nouveau_mem.h"
35#include "nouveau_vmm.h"
36
37#include <nvif/class.h>
38
39void
40nouveau_gem_object_del(struct drm_gem_object *gem)
41{
42 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
43 struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
44 struct ttm_buffer_object *bo = &nvbo->bo;
45 struct device *dev = drm->dev->dev;
46 int ret;
47
48 ret = pm_runtime_get_sync(dev);
49 if (WARN_ON(ret < 0 && ret != -EACCES))
50 return;
51
52 if (gem->import_attach)
53 drm_prime_gem_destroy(gem, nvbo->bo.sg);
54
55 drm_gem_object_release(gem);
56
57
58 gem->filp = NULL;
59 ttm_bo_unref(&bo);
60
61 pm_runtime_mark_last_busy(dev);
62 pm_runtime_put_autosuspend(dev);
63}
64
65int
66nouveau_gem_object_open(struct drm_gem_object *gem, struct drm_file *file_priv)
67{
68 struct nouveau_cli *cli = nouveau_cli(file_priv);
69 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
70 struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
71 struct device *dev = drm->dev->dev;
72 struct nouveau_vma *vma;
73 int ret;
74
75 if (cli->vmm.vmm.object.oclass < NVIF_CLASS_VMM_NV50)
76 return 0;
77
78 ret = ttm_bo_reserve(&nvbo->bo, false, false, NULL);
79 if (ret)
80 return ret;
81
82 ret = pm_runtime_get_sync(dev);
83 if (ret < 0 && ret != -EACCES)
84 goto out;
85
86 ret = nouveau_vma_new(nvbo, &cli->vmm, &vma);
87 pm_runtime_mark_last_busy(dev);
88 pm_runtime_put_autosuspend(dev);
89out:
90 ttm_bo_unreserve(&nvbo->bo);
91 return ret;
92}
93
94struct nouveau_gem_object_unmap {
95 struct nouveau_cli_work work;
96 struct nouveau_vma *vma;
97};
98
99static void
100nouveau_gem_object_delete(struct nouveau_vma *vma)
101{
102 nouveau_fence_unref(&vma->fence);
103 nouveau_vma_del(&vma);
104}
105
106static void
107nouveau_gem_object_delete_work(struct nouveau_cli_work *w)
108{
109 struct nouveau_gem_object_unmap *work =
110 container_of(w, typeof(*work), work);
111 nouveau_gem_object_delete(work->vma);
112 kfree(work);
113}
114
115static void
116nouveau_gem_object_unmap(struct nouveau_bo *nvbo, struct nouveau_vma *vma)
117{
118 struct dma_fence *fence = vma->fence ? &vma->fence->base : NULL;
119 struct nouveau_gem_object_unmap *work;
120
121 list_del_init(&vma->head);
122
123 if (!fence) {
124 nouveau_gem_object_delete(vma);
125 return;
126 }
127
128 if (!(work = kmalloc(sizeof(*work), GFP_KERNEL))) {
129 WARN_ON(dma_fence_wait_timeout(fence, false, 2 * HZ) <= 0);
130 nouveau_gem_object_delete(vma);
131 return;
132 }
133
134 work->work.func = nouveau_gem_object_delete_work;
135 work->vma = vma;
136 nouveau_cli_work_queue(vma->vmm->cli, fence, &work->work);
137}
138
139void
140nouveau_gem_object_close(struct drm_gem_object *gem, struct drm_file *file_priv)
141{
142 struct nouveau_cli *cli = nouveau_cli(file_priv);
143 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
144 struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
145 struct device *dev = drm->dev->dev;
146 struct nouveau_vma *vma;
147 int ret;
148
149 if (cli->vmm.vmm.object.oclass < NVIF_CLASS_VMM_NV50)
150 return;
151
152 ret = ttm_bo_reserve(&nvbo->bo, false, false, NULL);
153 if (ret)
154 return;
155
156 vma = nouveau_vma_find(nvbo, &cli->vmm);
157 if (vma) {
158 if (--vma->refs == 0) {
159 ret = pm_runtime_get_sync(dev);
160 if (!WARN_ON(ret < 0 && ret != -EACCES)) {
161 nouveau_gem_object_unmap(nvbo, vma);
162 pm_runtime_mark_last_busy(dev);
163 pm_runtime_put_autosuspend(dev);
164 }
165 }
166 }
167 ttm_bo_unreserve(&nvbo->bo);
168}
169
170int
171nouveau_gem_new(struct nouveau_cli *cli, u64 size, int align, uint32_t domain,
172 uint32_t tile_mode, uint32_t tile_flags,
173 struct nouveau_bo **pnvbo)
174{
175 struct nouveau_drm *drm = cli->drm;
176 struct nouveau_bo *nvbo;
177 u32 flags = 0;
178 int ret;
179
180 if (domain & NOUVEAU_GEM_DOMAIN_VRAM)
181 flags |= TTM_PL_FLAG_VRAM;
182 if (domain & NOUVEAU_GEM_DOMAIN_GART)
183 flags |= TTM_PL_FLAG_TT;
184 if (!flags || domain & NOUVEAU_GEM_DOMAIN_CPU)
185 flags |= TTM_PL_FLAG_SYSTEM;
186
187 if (domain & NOUVEAU_GEM_DOMAIN_COHERENT)
188 flags |= TTM_PL_FLAG_UNCACHED;
189
190 ret = nouveau_bo_new(cli, size, align, flags, tile_mode,
191 tile_flags, NULL, NULL, pnvbo);
192 if (ret)
193 return ret;
194 nvbo = *pnvbo;
195
196
197
198
199
200 nvbo->valid_domains = NOUVEAU_GEM_DOMAIN_VRAM |
201 NOUVEAU_GEM_DOMAIN_GART;
202 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA)
203 nvbo->valid_domains &= domain;
204
205
206
207 ret = drm_gem_object_init(drm->dev, &nvbo->gem, nvbo->bo.mem.size);
208 if (ret) {
209 nouveau_bo_ref(NULL, pnvbo);
210 return -ENOMEM;
211 }
212
213 nvbo->bo.persistent_swap_storage = nvbo->gem.filp;
214 return 0;
215}
216
217static int
218nouveau_gem_info(struct drm_file *file_priv, struct drm_gem_object *gem,
219 struct drm_nouveau_gem_info *rep)
220{
221 struct nouveau_cli *cli = nouveau_cli(file_priv);
222 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
223 struct nouveau_vma *vma;
224
225 if (is_power_of_2(nvbo->valid_domains))
226 rep->domain = nvbo->valid_domains;
227 else if (nvbo->bo.mem.mem_type == TTM_PL_TT)
228 rep->domain = NOUVEAU_GEM_DOMAIN_GART;
229 else
230 rep->domain = NOUVEAU_GEM_DOMAIN_VRAM;
231 rep->offset = nvbo->bo.offset;
232 if (cli->vmm.vmm.object.oclass >= NVIF_CLASS_VMM_NV50) {
233 vma = nouveau_vma_find(nvbo, &cli->vmm);
234 if (!vma)
235 return -EINVAL;
236
237 rep->offset = vma->addr;
238 }
239
240 rep->size = nvbo->bo.mem.num_pages << PAGE_SHIFT;
241 rep->map_handle = drm_vma_node_offset_addr(&nvbo->bo.vma_node);
242 rep->tile_mode = nvbo->mode;
243 rep->tile_flags = nvbo->contig ? 0 : NOUVEAU_GEM_TILE_NONCONTIG;
244 if (cli->device.info.family >= NV_DEVICE_INFO_V0_FERMI)
245 rep->tile_flags |= nvbo->kind << 8;
246 else
247 if (cli->device.info.family >= NV_DEVICE_INFO_V0_TESLA)
248 rep->tile_flags |= nvbo->kind << 8 | nvbo->comp << 16;
249 else
250 rep->tile_flags |= nvbo->zeta;
251 return 0;
252}
253
254int
255nouveau_gem_ioctl_new(struct drm_device *dev, void *data,
256 struct drm_file *file_priv)
257{
258 struct nouveau_cli *cli = nouveau_cli(file_priv);
259 struct drm_nouveau_gem_new *req = data;
260 struct nouveau_bo *nvbo = NULL;
261 int ret = 0;
262
263 ret = nouveau_gem_new(cli, req->info.size, req->align,
264 req->info.domain, req->info.tile_mode,
265 req->info.tile_flags, &nvbo);
266 if (ret)
267 return ret;
268
269 ret = drm_gem_handle_create(file_priv, &nvbo->gem, &req->info.handle);
270 if (ret == 0) {
271 ret = nouveau_gem_info(file_priv, &nvbo->gem, &req->info);
272 if (ret)
273 drm_gem_handle_delete(file_priv, req->info.handle);
274 }
275
276
277 drm_gem_object_unreference_unlocked(&nvbo->gem);
278 return ret;
279}
280
281static int
282nouveau_gem_set_domain(struct drm_gem_object *gem, uint32_t read_domains,
283 uint32_t write_domains, uint32_t valid_domains)
284{
285 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
286 struct ttm_buffer_object *bo = &nvbo->bo;
287 uint32_t domains = valid_domains & nvbo->valid_domains &
288 (write_domains ? write_domains : read_domains);
289 uint32_t pref_flags = 0, valid_flags = 0;
290
291 if (!domains)
292 return -EINVAL;
293
294 if (valid_domains & NOUVEAU_GEM_DOMAIN_VRAM)
295 valid_flags |= TTM_PL_FLAG_VRAM;
296
297 if (valid_domains & NOUVEAU_GEM_DOMAIN_GART)
298 valid_flags |= TTM_PL_FLAG_TT;
299
300 if ((domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
301 bo->mem.mem_type == TTM_PL_VRAM)
302 pref_flags |= TTM_PL_FLAG_VRAM;
303
304 else if ((domains & NOUVEAU_GEM_DOMAIN_GART) &&
305 bo->mem.mem_type == TTM_PL_TT)
306 pref_flags |= TTM_PL_FLAG_TT;
307
308 else if (domains & NOUVEAU_GEM_DOMAIN_VRAM)
309 pref_flags |= TTM_PL_FLAG_VRAM;
310
311 else
312 pref_flags |= TTM_PL_FLAG_TT;
313
314 nouveau_bo_placement_set(nvbo, pref_flags, valid_flags);
315
316 return 0;
317}
318
319struct validate_op {
320 struct list_head list;
321 struct ww_acquire_ctx ticket;
322};
323
324static void
325validate_fini_no_ticket(struct validate_op *op, struct nouveau_fence *fence,
326 struct drm_nouveau_gem_pushbuf_bo *pbbo)
327{
328 struct nouveau_bo *nvbo;
329 struct drm_nouveau_gem_pushbuf_bo *b;
330
331 while (!list_empty(&op->list)) {
332 nvbo = list_entry(op->list.next, struct nouveau_bo, entry);
333 b = &pbbo[nvbo->pbbo_index];
334
335 if (likely(fence)) {
336 struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
337 struct nouveau_vma *vma;
338
339 nouveau_bo_fence(nvbo, fence, !!b->write_domains);
340
341 if (drm->client.vmm.vmm.object.oclass >= NVIF_CLASS_VMM_NV50) {
342 vma = (void *)(unsigned long)b->user_priv;
343 nouveau_fence_unref(&vma->fence);
344 dma_fence_get(&fence->base);
345 vma->fence = fence;
346 }
347 }
348
349 if (unlikely(nvbo->validate_mapped)) {
350 ttm_bo_kunmap(&nvbo->kmap);
351 nvbo->validate_mapped = false;
352 }
353
354 list_del(&nvbo->entry);
355 nvbo->reserved_by = NULL;
356 ttm_bo_unreserve(&nvbo->bo);
357 drm_gem_object_unreference_unlocked(&nvbo->gem);
358 }
359}
360
361static void
362validate_fini(struct validate_op *op, struct nouveau_fence *fence,
363 struct drm_nouveau_gem_pushbuf_bo *pbbo)
364{
365 validate_fini_no_ticket(op, fence, pbbo);
366 ww_acquire_fini(&op->ticket);
367}
368
369static int
370validate_init(struct nouveau_channel *chan, struct drm_file *file_priv,
371 struct drm_nouveau_gem_pushbuf_bo *pbbo,
372 int nr_buffers, struct validate_op *op)
373{
374 struct nouveau_cli *cli = nouveau_cli(file_priv);
375 int trycnt = 0;
376 int ret = -EINVAL, i;
377 struct nouveau_bo *res_bo = NULL;
378 LIST_HEAD(gart_list);
379 LIST_HEAD(vram_list);
380 LIST_HEAD(both_list);
381
382 ww_acquire_init(&op->ticket, &reservation_ww_class);
383retry:
384 if (++trycnt > 100000) {
385 NV_PRINTK(err, cli, "%s failed and gave up.\n", __func__);
386 return -EINVAL;
387 }
388
389 for (i = 0; i < nr_buffers; i++) {
390 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[i];
391 struct drm_gem_object *gem;
392 struct nouveau_bo *nvbo;
393
394 gem = drm_gem_object_lookup(file_priv, b->handle);
395 if (!gem) {
396 NV_PRINTK(err, cli, "Unknown handle 0x%08x\n", b->handle);
397 ret = -ENOENT;
398 break;
399 }
400 nvbo = nouveau_gem_object(gem);
401 if (nvbo == res_bo) {
402 res_bo = NULL;
403 drm_gem_object_unreference_unlocked(gem);
404 continue;
405 }
406
407 if (nvbo->reserved_by && nvbo->reserved_by == file_priv) {
408 NV_PRINTK(err, cli, "multiple instances of buffer %d on "
409 "validation list\n", b->handle);
410 drm_gem_object_unreference_unlocked(gem);
411 ret = -EINVAL;
412 break;
413 }
414
415 ret = ttm_bo_reserve(&nvbo->bo, true, false, &op->ticket);
416 if (ret) {
417 list_splice_tail_init(&vram_list, &op->list);
418 list_splice_tail_init(&gart_list, &op->list);
419 list_splice_tail_init(&both_list, &op->list);
420 validate_fini_no_ticket(op, NULL, NULL);
421 if (unlikely(ret == -EDEADLK)) {
422 ret = ttm_bo_reserve_slowpath(&nvbo->bo, true,
423 &op->ticket);
424 if (!ret)
425 res_bo = nvbo;
426 }
427 if (unlikely(ret)) {
428 if (ret != -ERESTARTSYS)
429 NV_PRINTK(err, cli, "fail reserve\n");
430 break;
431 }
432 }
433
434 if (cli->vmm.vmm.object.oclass >= NVIF_CLASS_VMM_NV50) {
435 struct nouveau_vmm *vmm = &cli->vmm;
436 struct nouveau_vma *vma = nouveau_vma_find(nvbo, vmm);
437 if (!vma) {
438 NV_PRINTK(err, cli, "vma not found!\n");
439 ret = -EINVAL;
440 break;
441 }
442
443 b->user_priv = (uint64_t)(unsigned long)vma;
444 } else {
445 b->user_priv = (uint64_t)(unsigned long)nvbo;
446 }
447
448 nvbo->reserved_by = file_priv;
449 nvbo->pbbo_index = i;
450 if ((b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
451 (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART))
452 list_add_tail(&nvbo->entry, &both_list);
453 else
454 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM)
455 list_add_tail(&nvbo->entry, &vram_list);
456 else
457 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART)
458 list_add_tail(&nvbo->entry, &gart_list);
459 else {
460 NV_PRINTK(err, cli, "invalid valid domains: 0x%08x\n",
461 b->valid_domains);
462 list_add_tail(&nvbo->entry, &both_list);
463 ret = -EINVAL;
464 break;
465 }
466 if (nvbo == res_bo)
467 goto retry;
468 }
469
470 ww_acquire_done(&op->ticket);
471 list_splice_tail(&vram_list, &op->list);
472 list_splice_tail(&gart_list, &op->list);
473 list_splice_tail(&both_list, &op->list);
474 if (ret)
475 validate_fini(op, NULL, NULL);
476 return ret;
477
478}
479
480static int
481validate_list(struct nouveau_channel *chan, struct nouveau_cli *cli,
482 struct list_head *list, struct drm_nouveau_gem_pushbuf_bo *pbbo,
483 uint64_t user_pbbo_ptr)
484{
485 struct nouveau_drm *drm = chan->drm;
486 struct drm_nouveau_gem_pushbuf_bo __user *upbbo =
487 (void __force __user *)(uintptr_t)user_pbbo_ptr;
488 struct nouveau_bo *nvbo;
489 int ret, relocs = 0;
490
491 list_for_each_entry(nvbo, list, entry) {
492 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[nvbo->pbbo_index];
493
494 ret = nouveau_gem_set_domain(&nvbo->gem, b->read_domains,
495 b->write_domains,
496 b->valid_domains);
497 if (unlikely(ret)) {
498 NV_PRINTK(err, cli, "fail set_domain\n");
499 return ret;
500 }
501
502 ret = nouveau_bo_validate(nvbo, true, false);
503 if (unlikely(ret)) {
504 if (ret != -ERESTARTSYS)
505 NV_PRINTK(err, cli, "fail ttm_validate\n");
506 return ret;
507 }
508
509 ret = nouveau_fence_sync(nvbo, chan, !!b->write_domains, true);
510 if (unlikely(ret)) {
511 if (ret != -ERESTARTSYS)
512 NV_PRINTK(err, cli, "fail post-validate sync\n");
513 return ret;
514 }
515
516 if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA) {
517 if (nvbo->bo.offset == b->presumed.offset &&
518 ((nvbo->bo.mem.mem_type == TTM_PL_VRAM &&
519 b->presumed.domain & NOUVEAU_GEM_DOMAIN_VRAM) ||
520 (nvbo->bo.mem.mem_type == TTM_PL_TT &&
521 b->presumed.domain & NOUVEAU_GEM_DOMAIN_GART)))
522 continue;
523
524 if (nvbo->bo.mem.mem_type == TTM_PL_TT)
525 b->presumed.domain = NOUVEAU_GEM_DOMAIN_GART;
526 else
527 b->presumed.domain = NOUVEAU_GEM_DOMAIN_VRAM;
528 b->presumed.offset = nvbo->bo.offset;
529 b->presumed.valid = 0;
530 relocs++;
531
532 if (copy_to_user(&upbbo[nvbo->pbbo_index].presumed,
533 &b->presumed, sizeof(b->presumed)))
534 return -EFAULT;
535 }
536 }
537
538 return relocs;
539}
540
541static int
542nouveau_gem_pushbuf_validate(struct nouveau_channel *chan,
543 struct drm_file *file_priv,
544 struct drm_nouveau_gem_pushbuf_bo *pbbo,
545 uint64_t user_buffers, int nr_buffers,
546 struct validate_op *op, int *apply_relocs)
547{
548 struct nouveau_cli *cli = nouveau_cli(file_priv);
549 int ret;
550
551 INIT_LIST_HEAD(&op->list);
552
553 if (nr_buffers == 0)
554 return 0;
555
556 ret = validate_init(chan, file_priv, pbbo, nr_buffers, op);
557 if (unlikely(ret)) {
558 if (ret != -ERESTARTSYS)
559 NV_PRINTK(err, cli, "validate_init\n");
560 return ret;
561 }
562
563 ret = validate_list(chan, cli, &op->list, pbbo, user_buffers);
564 if (unlikely(ret < 0)) {
565 if (ret != -ERESTARTSYS)
566 NV_PRINTK(err, cli, "validating bo list\n");
567 validate_fini(op, NULL, NULL);
568 return ret;
569 }
570 *apply_relocs = ret;
571 return 0;
572}
573
574static inline void
575u_free(void *addr)
576{
577 kvfree(addr);
578}
579
580static inline void *
581u_memcpya(uint64_t user, unsigned nmemb, unsigned size)
582{
583 void *mem;
584 void __user *userptr = (void __force __user *)(uintptr_t)user;
585
586 size *= nmemb;
587
588 mem = kvmalloc(size, GFP_KERNEL);
589 if (!mem)
590 return ERR_PTR(-ENOMEM);
591
592 if (copy_from_user(mem, userptr, size)) {
593 u_free(mem);
594 return ERR_PTR(-EFAULT);
595 }
596
597 return mem;
598}
599
600static int
601nouveau_gem_pushbuf_reloc_apply(struct nouveau_cli *cli,
602 struct drm_nouveau_gem_pushbuf *req,
603 struct drm_nouveau_gem_pushbuf_bo *bo)
604{
605 struct drm_nouveau_gem_pushbuf_reloc *reloc = NULL;
606 int ret = 0;
607 unsigned i;
608
609 reloc = u_memcpya(req->relocs, req->nr_relocs, sizeof(*reloc));
610 if (IS_ERR(reloc))
611 return PTR_ERR(reloc);
612
613 for (i = 0; i < req->nr_relocs; i++) {
614 struct drm_nouveau_gem_pushbuf_reloc *r = &reloc[i];
615 struct drm_nouveau_gem_pushbuf_bo *b;
616 struct nouveau_bo *nvbo;
617 uint32_t data;
618
619 if (unlikely(r->bo_index >= req->nr_buffers)) {
620 NV_PRINTK(err, cli, "reloc bo index invalid\n");
621 ret = -EINVAL;
622 break;
623 }
624
625 b = &bo[r->bo_index];
626 if (b->presumed.valid)
627 continue;
628
629 if (unlikely(r->reloc_bo_index >= req->nr_buffers)) {
630 NV_PRINTK(err, cli, "reloc container bo index invalid\n");
631 ret = -EINVAL;
632 break;
633 }
634 nvbo = (void *)(unsigned long)bo[r->reloc_bo_index].user_priv;
635
636 if (unlikely(r->reloc_bo_offset + 4 >
637 nvbo->bo.mem.num_pages << PAGE_SHIFT)) {
638 NV_PRINTK(err, cli, "reloc outside of bo\n");
639 ret = -EINVAL;
640 break;
641 }
642
643 if (!nvbo->kmap.virtual) {
644 ret = ttm_bo_kmap(&nvbo->bo, 0, nvbo->bo.mem.num_pages,
645 &nvbo->kmap);
646 if (ret) {
647 NV_PRINTK(err, cli, "failed kmap for reloc\n");
648 break;
649 }
650 nvbo->validate_mapped = true;
651 }
652
653 if (r->flags & NOUVEAU_GEM_RELOC_LOW)
654 data = b->presumed.offset + r->data;
655 else
656 if (r->flags & NOUVEAU_GEM_RELOC_HIGH)
657 data = (b->presumed.offset + r->data) >> 32;
658 else
659 data = r->data;
660
661 if (r->flags & NOUVEAU_GEM_RELOC_OR) {
662 if (b->presumed.domain == NOUVEAU_GEM_DOMAIN_GART)
663 data |= r->tor;
664 else
665 data |= r->vor;
666 }
667
668 ret = ttm_bo_wait(&nvbo->bo, false, false);
669 if (ret) {
670 NV_PRINTK(err, cli, "reloc wait_idle failed: %d\n", ret);
671 break;
672 }
673
674 nouveau_bo_wr32(nvbo, r->reloc_bo_offset >> 2, data);
675 }
676
677 u_free(reloc);
678 return ret;
679}
680
681int
682nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data,
683 struct drm_file *file_priv)
684{
685 struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv);
686 struct nouveau_cli *cli = nouveau_cli(file_priv);
687 struct nouveau_abi16_chan *temp;
688 struct nouveau_drm *drm = nouveau_drm(dev);
689 struct drm_nouveau_gem_pushbuf *req = data;
690 struct drm_nouveau_gem_pushbuf_push *push;
691 struct drm_nouveau_gem_pushbuf_bo *bo;
692 struct nouveau_channel *chan = NULL;
693 struct validate_op op;
694 struct nouveau_fence *fence = NULL;
695 int i, j, ret = 0, do_reloc = 0;
696
697 if (unlikely(!abi16))
698 return -ENOMEM;
699
700 list_for_each_entry(temp, &abi16->channels, head) {
701 if (temp->chan->chid == req->channel) {
702 chan = temp->chan;
703 break;
704 }
705 }
706
707 if (!chan)
708 return nouveau_abi16_put(abi16, -ENOENT);
709
710 req->vram_available = drm->gem.vram_available;
711 req->gart_available = drm->gem.gart_available;
712 if (unlikely(req->nr_push == 0))
713 goto out_next;
714
715 if (unlikely(req->nr_push > NOUVEAU_GEM_MAX_PUSH)) {
716 NV_PRINTK(err, cli, "pushbuf push count exceeds limit: %d max %d\n",
717 req->nr_push, NOUVEAU_GEM_MAX_PUSH);
718 return nouveau_abi16_put(abi16, -EINVAL);
719 }
720
721 if (unlikely(req->nr_buffers > NOUVEAU_GEM_MAX_BUFFERS)) {
722 NV_PRINTK(err, cli, "pushbuf bo count exceeds limit: %d max %d\n",
723 req->nr_buffers, NOUVEAU_GEM_MAX_BUFFERS);
724 return nouveau_abi16_put(abi16, -EINVAL);
725 }
726
727 if (unlikely(req->nr_relocs > NOUVEAU_GEM_MAX_RELOCS)) {
728 NV_PRINTK(err, cli, "pushbuf reloc count exceeds limit: %d max %d\n",
729 req->nr_relocs, NOUVEAU_GEM_MAX_RELOCS);
730 return nouveau_abi16_put(abi16, -EINVAL);
731 }
732
733 push = u_memcpya(req->push, req->nr_push, sizeof(*push));
734 if (IS_ERR(push))
735 return nouveau_abi16_put(abi16, PTR_ERR(push));
736
737 bo = u_memcpya(req->buffers, req->nr_buffers, sizeof(*bo));
738 if (IS_ERR(bo)) {
739 u_free(push);
740 return nouveau_abi16_put(abi16, PTR_ERR(bo));
741 }
742
743
744 for (i = 0; i < req->nr_push; i++) {
745 if (push[i].bo_index >= req->nr_buffers) {
746 NV_PRINTK(err, cli, "push %d buffer not in list\n", i);
747 ret = -EINVAL;
748 goto out_prevalid;
749 }
750 }
751
752
753 ret = nouveau_gem_pushbuf_validate(chan, file_priv, bo, req->buffers,
754 req->nr_buffers, &op, &do_reloc);
755 if (ret) {
756 if (ret != -ERESTARTSYS)
757 NV_PRINTK(err, cli, "validate: %d\n", ret);
758 goto out_prevalid;
759 }
760
761
762 if (do_reloc) {
763 ret = nouveau_gem_pushbuf_reloc_apply(cli, req, bo);
764 if (ret) {
765 NV_PRINTK(err, cli, "reloc apply: %d\n", ret);
766 goto out;
767 }
768 }
769
770 if (chan->dma.ib_max) {
771 ret = nouveau_dma_wait(chan, req->nr_push + 1, 16);
772 if (ret) {
773 NV_PRINTK(err, cli, "nv50cal_space: %d\n", ret);
774 goto out;
775 }
776
777 for (i = 0; i < req->nr_push; i++) {
778 struct nouveau_vma *vma = (void *)(unsigned long)
779 bo[push[i].bo_index].user_priv;
780
781 nv50_dma_push(chan, vma->addr + push[i].offset,
782 push[i].length);
783 }
784 } else
785 if (drm->client.device.info.chipset >= 0x25) {
786 ret = RING_SPACE(chan, req->nr_push * 2);
787 if (ret) {
788 NV_PRINTK(err, cli, "cal_space: %d\n", ret);
789 goto out;
790 }
791
792 for (i = 0; i < req->nr_push; i++) {
793 struct nouveau_bo *nvbo = (void *)(unsigned long)
794 bo[push[i].bo_index].user_priv;
795
796 OUT_RING(chan, (nvbo->bo.offset + push[i].offset) | 2);
797 OUT_RING(chan, 0);
798 }
799 } else {
800 ret = RING_SPACE(chan, req->nr_push * (2 + NOUVEAU_DMA_SKIPS));
801 if (ret) {
802 NV_PRINTK(err, cli, "jmp_space: %d\n", ret);
803 goto out;
804 }
805
806 for (i = 0; i < req->nr_push; i++) {
807 struct nouveau_bo *nvbo = (void *)(unsigned long)
808 bo[push[i].bo_index].user_priv;
809 uint32_t cmd;
810
811 cmd = chan->push.addr + ((chan->dma.cur + 2) << 2);
812 cmd |= 0x20000000;
813 if (unlikely(cmd != req->suffix0)) {
814 if (!nvbo->kmap.virtual) {
815 ret = ttm_bo_kmap(&nvbo->bo, 0,
816 nvbo->bo.mem.
817 num_pages,
818 &nvbo->kmap);
819 if (ret) {
820 WIND_RING(chan);
821 goto out;
822 }
823 nvbo->validate_mapped = true;
824 }
825
826 nouveau_bo_wr32(nvbo, (push[i].offset +
827 push[i].length - 8) / 4, cmd);
828 }
829
830 OUT_RING(chan, 0x20000000 |
831 (nvbo->bo.offset + push[i].offset));
832 OUT_RING(chan, 0);
833 for (j = 0; j < NOUVEAU_DMA_SKIPS; j++)
834 OUT_RING(chan, 0);
835 }
836 }
837
838 ret = nouveau_fence_new(chan, false, &fence);
839 if (ret) {
840 NV_PRINTK(err, cli, "error fencing pushbuf: %d\n", ret);
841 WIND_RING(chan);
842 goto out;
843 }
844
845out:
846 validate_fini(&op, fence, bo);
847 nouveau_fence_unref(&fence);
848
849out_prevalid:
850 u_free(bo);
851 u_free(push);
852
853out_next:
854 if (chan->dma.ib_max) {
855 req->suffix0 = 0x00000000;
856 req->suffix1 = 0x00000000;
857 } else
858 if (drm->client.device.info.chipset >= 0x25) {
859 req->suffix0 = 0x00020000;
860 req->suffix1 = 0x00000000;
861 } else {
862 req->suffix0 = 0x20000000 |
863 (chan->push.addr + ((chan->dma.cur + 2) << 2));
864 req->suffix1 = 0x00000000;
865 }
866
867 return nouveau_abi16_put(abi16, ret);
868}
869
870int
871nouveau_gem_ioctl_cpu_prep(struct drm_device *dev, void *data,
872 struct drm_file *file_priv)
873{
874 struct drm_nouveau_gem_cpu_prep *req = data;
875 struct drm_gem_object *gem;
876 struct nouveau_bo *nvbo;
877 bool no_wait = !!(req->flags & NOUVEAU_GEM_CPU_PREP_NOWAIT);
878 bool write = !!(req->flags & NOUVEAU_GEM_CPU_PREP_WRITE);
879 long lret;
880 int ret;
881
882 gem = drm_gem_object_lookup(file_priv, req->handle);
883 if (!gem)
884 return -ENOENT;
885 nvbo = nouveau_gem_object(gem);
886
887 lret = reservation_object_wait_timeout_rcu(nvbo->bo.resv, write, true,
888 no_wait ? 0 : 30 * HZ);
889 if (!lret)
890 ret = -EBUSY;
891 else if (lret > 0)
892 ret = 0;
893 else
894 ret = lret;
895
896 nouveau_bo_sync_for_cpu(nvbo);
897 drm_gem_object_unreference_unlocked(gem);
898
899 return ret;
900}
901
902int
903nouveau_gem_ioctl_cpu_fini(struct drm_device *dev, void *data,
904 struct drm_file *file_priv)
905{
906 struct drm_nouveau_gem_cpu_fini *req = data;
907 struct drm_gem_object *gem;
908 struct nouveau_bo *nvbo;
909
910 gem = drm_gem_object_lookup(file_priv, req->handle);
911 if (!gem)
912 return -ENOENT;
913 nvbo = nouveau_gem_object(gem);
914
915 nouveau_bo_sync_for_device(nvbo);
916 drm_gem_object_unreference_unlocked(gem);
917 return 0;
918}
919
920int
921nouveau_gem_ioctl_info(struct drm_device *dev, void *data,
922 struct drm_file *file_priv)
923{
924 struct drm_nouveau_gem_info *req = data;
925 struct drm_gem_object *gem;
926 int ret;
927
928 gem = drm_gem_object_lookup(file_priv, req->handle);
929 if (!gem)
930 return -ENOENT;
931
932 ret = nouveau_gem_info(file_priv, gem, req);
933 drm_gem_object_unreference_unlocked(gem);
934 return ret;
935}
936
937
