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1/*
2 * Copyright (C) 2008 Ben Skeggs.
3 * All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining
6 * a copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sublicense, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the
14 * next paragraph) shall be included in all copies or substantial
15 * portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 *
25 */
26
27#include "nouveau_drm.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
35void
36nouveau_gem_object_del(struct drm_gem_object *gem)
37{
38 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
39 struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
40 struct ttm_buffer_object *bo = &nvbo->bo;
41 struct device *dev = drm->dev->dev;
42 int ret;
43
44 ret = pm_runtime_get_sync(dev);
45 if (WARN_ON(ret < 0 && ret != -EACCES))
46 return;
47
48 if (gem->import_attach)
49 drm_prime_gem_destroy(gem, nvbo->bo.sg);
50
51 drm_gem_object_release(gem);
52
53 /* reset filp so nouveau_bo_del_ttm() can test for it */
54 gem->filp = NULL;
55 ttm_bo_unref(&bo);
56
57 pm_runtime_mark_last_busy(dev);
58 pm_runtime_put_autosuspend(dev);
59}
60
61int
62nouveau_gem_object_open(struct drm_gem_object *gem, struct drm_file *file_priv)
63{
64 struct nouveau_cli *cli = nouveau_cli(file_priv);
65 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
66 struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
67 struct nvkm_vma *vma;
68 struct device *dev = drm->dev->dev;
69 int ret;
70
71 if (!cli->vm)
72 return 0;
73
74 ret = ttm_bo_reserve(&nvbo->bo, false, false, false, NULL);
75 if (ret)
76 return ret;
77
78 vma = nouveau_bo_vma_find(nvbo, cli->vm);
79 if (!vma) {
80 vma = kzalloc(sizeof(*vma), GFP_KERNEL);
81 if (!vma) {
82 ret = -ENOMEM;
83 goto out;
84 }
85
86 ret = pm_runtime_get_sync(dev);
87 if (ret < 0 && ret != -EACCES) {
88 kfree(vma);
89 goto out;
90 }
91
92 ret = nouveau_bo_vma_add(nvbo, cli->vm, vma);
93 if (ret)
94 kfree(vma);
95
96 pm_runtime_mark_last_busy(dev);
97 pm_runtime_put_autosuspend(dev);
98 } else {
99 vma->refcount++;
100 }
101
102out:
103 ttm_bo_unreserve(&nvbo->bo);
104 return ret;
105}
106
107static void
108nouveau_gem_object_delete(void *data)
109{
110 struct nvkm_vma *vma = data;
111 nvkm_vm_unmap(vma);
112 nvkm_vm_put(vma);
113 kfree(vma);
114}
115
116static void
117nouveau_gem_object_unmap(struct nouveau_bo *nvbo, struct nvkm_vma *vma)
118{
119 const bool mapped = nvbo->bo.mem.mem_type != TTM_PL_SYSTEM;
120 struct reservation_object *resv = nvbo->bo.resv;
121 struct reservation_object_list *fobj;
122 struct fence *fence = NULL;
123
124 fobj = reservation_object_get_list(resv);
125
126 list_del(&vma->head);
127
128 if (fobj && fobj->shared_count > 1)
129 ttm_bo_wait(&nvbo->bo, true, false, false);
130 else if (fobj && fobj->shared_count == 1)
131 fence = rcu_dereference_protected(fobj->shared[0],
132 reservation_object_held(resv));
133 else
134 fence = reservation_object_get_excl(nvbo->bo.resv);
135
136 if (fence && mapped) {
137 nouveau_fence_work(fence, nouveau_gem_object_delete, vma);
138 } else {
139 if (mapped)
140 nvkm_vm_unmap(vma);
141 nvkm_vm_put(vma);
142 kfree(vma);
143 }
144}
145
146void
147nouveau_gem_object_close(struct drm_gem_object *gem, struct drm_file *file_priv)
148{
149 struct nouveau_cli *cli = nouveau_cli(file_priv);
150 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
151 struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
152 struct device *dev = drm->dev->dev;
153 struct nvkm_vma *vma;
154 int ret;
155
156 if (!cli->vm)
157 return;
158
159 ret = ttm_bo_reserve(&nvbo->bo, false, false, false, NULL);
160 if (ret)
161 return;
162
163 vma = nouveau_bo_vma_find(nvbo, cli->vm);
164 if (vma) {
165 if (--vma->refcount == 0) {
166 ret = pm_runtime_get_sync(dev);
167 if (!WARN_ON(ret < 0 && ret != -EACCES)) {
168 nouveau_gem_object_unmap(nvbo, vma);
169 pm_runtime_mark_last_busy(dev);
170 pm_runtime_put_autosuspend(dev);
171 }
172 }
173 }
174 ttm_bo_unreserve(&nvbo->bo);
175}
176
177int
178nouveau_gem_new(struct drm_device *dev, int size, int align, uint32_t domain,
179 uint32_t tile_mode, uint32_t tile_flags,
180 struct nouveau_bo **pnvbo)
181{
182 struct nouveau_drm *drm = nouveau_drm(dev);
183 struct nouveau_bo *nvbo;
184 u32 flags = 0;
185 int ret;
186
187 if (domain & NOUVEAU_GEM_DOMAIN_VRAM)
188 flags |= TTM_PL_FLAG_VRAM;
189 if (domain & NOUVEAU_GEM_DOMAIN_GART)
190 flags |= TTM_PL_FLAG_TT;
191 if (!flags || domain & NOUVEAU_GEM_DOMAIN_CPU)
192 flags |= TTM_PL_FLAG_SYSTEM;
193
194 if (domain & NOUVEAU_GEM_DOMAIN_COHERENT)
195 flags |= TTM_PL_FLAG_UNCACHED;
196
197 ret = nouveau_bo_new(dev, size, align, flags, tile_mode,
198 tile_flags, NULL, NULL, pnvbo);
199 if (ret)
200 return ret;
201 nvbo = *pnvbo;
202
203 /* we restrict allowed domains on nv50+ to only the types
204 * that were requested at creation time. not possibly on
205 * earlier chips without busting the ABI.
206 */
207 nvbo->valid_domains = NOUVEAU_GEM_DOMAIN_VRAM |
208 NOUVEAU_GEM_DOMAIN_GART;
209 if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA)
210 nvbo->valid_domains &= domain;
211
212 /* Initialize the embedded gem-object. We return a single gem-reference
213 * to the caller, instead of a normal nouveau_bo ttm reference. */
214 ret = drm_gem_object_init(dev, &nvbo->gem, nvbo->bo.mem.size);
215 if (ret) {
216 nouveau_bo_ref(NULL, pnvbo);
217 return -ENOMEM;
218 }
219
220 nvbo->bo.persistent_swap_storage = nvbo->gem.filp;
221 return 0;
222}
223
224static int
225nouveau_gem_info(struct drm_file *file_priv, struct drm_gem_object *gem,
226 struct drm_nouveau_gem_info *rep)
227{
228 struct nouveau_cli *cli = nouveau_cli(file_priv);
229 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
230 struct nvkm_vma *vma;
231
232 if (is_power_of_2(nvbo->valid_domains))
233 rep->domain = nvbo->valid_domains;
234 else if (nvbo->bo.mem.mem_type == TTM_PL_TT)
235 rep->domain = NOUVEAU_GEM_DOMAIN_GART;
236 else
237 rep->domain = NOUVEAU_GEM_DOMAIN_VRAM;
238 rep->offset = nvbo->bo.offset;
239 if (cli->vm) {
240 vma = nouveau_bo_vma_find(nvbo, cli->vm);
241 if (!vma)
242 return -EINVAL;
243
244 rep->offset = vma->offset;
245 }
246
247 rep->size = nvbo->bo.mem.num_pages << PAGE_SHIFT;
248 rep->map_handle = drm_vma_node_offset_addr(&nvbo->bo.vma_node);
249 rep->tile_mode = nvbo->tile_mode;
250 rep->tile_flags = nvbo->tile_flags;
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_drm *drm = nouveau_drm(dev);
259 struct nouveau_cli *cli = nouveau_cli(file_priv);
260 struct nvkm_fb *fb = nvxx_fb(&drm->device);
261 struct drm_nouveau_gem_new *req = data;
262 struct nouveau_bo *nvbo = NULL;
263 int ret = 0;
264
265 if (!nvkm_fb_memtype_valid(fb, req->info.tile_flags)) {
266 NV_PRINTK(err, cli, "bad page flags: 0x%08x\n", req->info.tile_flags);
267 return -EINVAL;
268 }
269
270 ret = nouveau_gem_new(dev, req->info.size, req->align,
271 req->info.domain, req->info.tile_mode,
272 req->info.tile_flags, &nvbo);
273 if (ret)
274 return ret;
275
276 ret = drm_gem_handle_create(file_priv, &nvbo->gem, &req->info.handle);
277 if (ret == 0) {
278 ret = nouveau_gem_info(file_priv, &nvbo->gem, &req->info);
279 if (ret)
280 drm_gem_handle_delete(file_priv, req->info.handle);
281 }
282
283 /* drop reference from allocate - handle holds it now */
284 drm_gem_object_unreference_unlocked(&nvbo->gem);
285 return ret;
286}
287
288static int
289nouveau_gem_set_domain(struct drm_gem_object *gem, uint32_t read_domains,
290 uint32_t write_domains, uint32_t valid_domains)
291{
292 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
293 struct ttm_buffer_object *bo = &nvbo->bo;
294 uint32_t domains = valid_domains & nvbo->valid_domains &
295 (write_domains ? write_domains : read_domains);
296 uint32_t pref_flags = 0, valid_flags = 0;
297
298 if (!domains)
299 return -EINVAL;
300
301 if (valid_domains & NOUVEAU_GEM_DOMAIN_VRAM)
302 valid_flags |= TTM_PL_FLAG_VRAM;
303
304 if (valid_domains & NOUVEAU_GEM_DOMAIN_GART)
305 valid_flags |= TTM_PL_FLAG_TT;
306
307 if ((domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
308 bo->mem.mem_type == TTM_PL_VRAM)
309 pref_flags |= TTM_PL_FLAG_VRAM;
310
311 else if ((domains & NOUVEAU_GEM_DOMAIN_GART) &&
312 bo->mem.mem_type == TTM_PL_TT)
313 pref_flags |= TTM_PL_FLAG_TT;
314
315 else if (domains & NOUVEAU_GEM_DOMAIN_VRAM)
316 pref_flags |= TTM_PL_FLAG_VRAM;
317
318 else
319 pref_flags |= TTM_PL_FLAG_TT;
320
321 nouveau_bo_placement_set(nvbo, pref_flags, valid_flags);
322
323 return 0;
324}
325
326struct validate_op {
327 struct list_head list;
328 struct ww_acquire_ctx ticket;
329};
330
331static void
332validate_fini_no_ticket(struct validate_op *op, struct nouveau_fence *fence,
333 struct drm_nouveau_gem_pushbuf_bo *pbbo)
334{
335 struct nouveau_bo *nvbo;
336 struct drm_nouveau_gem_pushbuf_bo *b;
337
338 while (!list_empty(&op->list)) {
339 nvbo = list_entry(op->list.next, struct nouveau_bo, entry);
340 b = &pbbo[nvbo->pbbo_index];
341
342 if (likely(fence))
343 nouveau_bo_fence(nvbo, fence, !!b->write_domains);
344
345 if (unlikely(nvbo->validate_mapped)) {
346 ttm_bo_kunmap(&nvbo->kmap);
347 nvbo->validate_mapped = false;
348 }
349
350 list_del(&nvbo->entry);
351 nvbo->reserved_by = NULL;
352 ttm_bo_unreserve_ticket(&nvbo->bo, &op->ticket);
353 drm_gem_object_unreference_unlocked(&nvbo->gem);
354 }
355}
356
357static void
358validate_fini(struct validate_op *op, struct nouveau_fence *fence,
359 struct drm_nouveau_gem_pushbuf_bo *pbbo)
360{
361 validate_fini_no_ticket(op, fence, pbbo);
362 ww_acquire_fini(&op->ticket);
363}
364
365static int
366validate_init(struct nouveau_channel *chan, struct drm_file *file_priv,
367 struct drm_nouveau_gem_pushbuf_bo *pbbo,
368 int nr_buffers, struct validate_op *op)
369{
370 struct nouveau_cli *cli = nouveau_cli(file_priv);
371 struct drm_device *dev = chan->drm->dev;
372 int trycnt = 0;
373 int ret, i;
374 struct nouveau_bo *res_bo = NULL;
375 LIST_HEAD(gart_list);
376 LIST_HEAD(vram_list);
377 LIST_HEAD(both_list);
378
379 ww_acquire_init(&op->ticket, &reservation_ww_class);
380retry:
381 if (++trycnt > 100000) {
382 NV_PRINTK(err, cli, "%s failed and gave up.\n", __func__);
383 return -EINVAL;
384 }
385
386 for (i = 0; i < nr_buffers; i++) {
387 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[i];
388 struct drm_gem_object *gem;
389 struct nouveau_bo *nvbo;
390
391 gem = drm_gem_object_lookup(dev, file_priv, b->handle);
392 if (!gem) {
393 NV_PRINTK(err, cli, "Unknown handle 0x%08x\n", b->handle);
394 ret = -ENOENT;
395 break;
396 }
397 nvbo = nouveau_gem_object(gem);
398 if (nvbo == res_bo) {
399 res_bo = NULL;
400 drm_gem_object_unreference_unlocked(gem);
401 continue;
402 }
403
404 if (nvbo->reserved_by && nvbo->reserved_by == file_priv) {
405 NV_PRINTK(err, cli, "multiple instances of buffer %d on "
406 "validation list\n", b->handle);
407 drm_gem_object_unreference_unlocked(gem);
408 ret = -EINVAL;
409 break;
410 }
411
412 ret = ttm_bo_reserve(&nvbo->bo, true, false, true, &op->ticket);
413 if (ret) {
414 list_splice_tail_init(&vram_list, &op->list);
415 list_splice_tail_init(&gart_list, &op->list);
416 list_splice_tail_init(&both_list, &op->list);
417 validate_fini_no_ticket(op, NULL, NULL);
418 if (unlikely(ret == -EDEADLK)) {
419 ret = ttm_bo_reserve_slowpath(&nvbo->bo, true,
420 &op->ticket);
421 if (!ret)
422 res_bo = nvbo;
423 }
424 if (unlikely(ret)) {
425 if (ret != -ERESTARTSYS)
426 NV_PRINTK(err, cli, "fail reserve\n");
427 break;
428 }
429 }
430
431 b->user_priv = (uint64_t)(unsigned long)nvbo;
432 nvbo->reserved_by = file_priv;
433 nvbo->pbbo_index = i;
434 if ((b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
435 (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART))
436 list_add_tail(&nvbo->entry, &both_list);
437 else
438 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM)
439 list_add_tail(&nvbo->entry, &vram_list);
440 else
441 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART)
442 list_add_tail(&nvbo->entry, &gart_list);
443 else {
444 NV_PRINTK(err, cli, "invalid valid domains: 0x%08x\n",
445 b->valid_domains);
446 list_add_tail(&nvbo->entry, &both_list);
447 ret = -EINVAL;
448 break;
449 }
450 if (nvbo == res_bo)
451 goto retry;
452 }
453
454 ww_acquire_done(&op->ticket);
455 list_splice_tail(&vram_list, &op->list);
456 list_splice_tail(&gart_list, &op->list);
457 list_splice_tail(&both_list, &op->list);
458 if (ret)
459 validate_fini(op, NULL, NULL);
460 return ret;
461
462}
463
464static int
465validate_list(struct nouveau_channel *chan, struct nouveau_cli *cli,
466 struct list_head *list, struct drm_nouveau_gem_pushbuf_bo *pbbo,
467 uint64_t user_pbbo_ptr)
468{
469 struct nouveau_drm *drm = chan->drm;
470 struct drm_nouveau_gem_pushbuf_bo __user *upbbo =
471 (void __force __user *)(uintptr_t)user_pbbo_ptr;
472 struct nouveau_bo *nvbo;
473 int ret, relocs = 0;
474
475 list_for_each_entry(nvbo, list, entry) {
476 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[nvbo->pbbo_index];
477
478 ret = nouveau_gem_set_domain(&nvbo->gem, b->read_domains,
479 b->write_domains,
480 b->valid_domains);
481 if (unlikely(ret)) {
482 NV_PRINTK(err, cli, "fail set_domain\n");
483 return ret;
484 }
485
486 ret = nouveau_bo_validate(nvbo, true, false);
487 if (unlikely(ret)) {
488 if (ret != -ERESTARTSYS)
489 NV_PRINTK(err, cli, "fail ttm_validate\n");
490 return ret;
491 }
492
493 ret = nouveau_fence_sync(nvbo, chan, !!b->write_domains, true);
494 if (unlikely(ret)) {
495 if (ret != -ERESTARTSYS)
496 NV_PRINTK(err, cli, "fail post-validate sync\n");
497 return ret;
498 }
499
500 if (drm->device.info.family < NV_DEVICE_INFO_V0_TESLA) {
501 if (nvbo->bo.offset == b->presumed.offset &&
502 ((nvbo->bo.mem.mem_type == TTM_PL_VRAM &&
503 b->presumed.domain & NOUVEAU_GEM_DOMAIN_VRAM) ||
504 (nvbo->bo.mem.mem_type == TTM_PL_TT &&
505 b->presumed.domain & NOUVEAU_GEM_DOMAIN_GART)))
506 continue;
507
508 if (nvbo->bo.mem.mem_type == TTM_PL_TT)
509 b->presumed.domain = NOUVEAU_GEM_DOMAIN_GART;
510 else
511 b->presumed.domain = NOUVEAU_GEM_DOMAIN_VRAM;
512 b->presumed.offset = nvbo->bo.offset;
513 b->presumed.valid = 0;
514 relocs++;
515
516 if (copy_to_user(&upbbo[nvbo->pbbo_index].presumed,
517 &b->presumed, sizeof(b->presumed)))
518 return -EFAULT;
519 }
520 }
521
522 return relocs;
523}
524
525static int
526nouveau_gem_pushbuf_validate(struct nouveau_channel *chan,
527 struct drm_file *file_priv,
528 struct drm_nouveau_gem_pushbuf_bo *pbbo,
529 uint64_t user_buffers, int nr_buffers,
530 struct validate_op *op, int *apply_relocs)
531{
532 struct nouveau_cli *cli = nouveau_cli(file_priv);
533 int ret;
534
535 INIT_LIST_HEAD(&op->list);
536
537 if (nr_buffers == 0)
538 return 0;
539
540 ret = validate_init(chan, file_priv, pbbo, nr_buffers, op);
541 if (unlikely(ret)) {
542 if (ret != -ERESTARTSYS)
543 NV_PRINTK(err, cli, "validate_init\n");
544 return ret;
545 }
546
547 ret = validate_list(chan, cli, &op->list, pbbo, user_buffers);
548 if (unlikely(ret < 0)) {
549 if (ret != -ERESTARTSYS)
550 NV_PRINTK(err, cli, "validating bo list\n");
551 validate_fini(op, NULL, NULL);
552 return ret;
553 }
554 *apply_relocs = ret;
555 return 0;
556}
557
558static inline void
559u_free(void *addr)
560{
561 kvfree(addr);
562}
563
564static inline void *
565u_memcpya(uint64_t user, unsigned nmemb, unsigned size)
566{
567 void *mem;
568 void __user *userptr = (void __force __user *)(uintptr_t)user;
569
570 size *= nmemb;
571
572 mem = kmalloc(size, GFP_KERNEL | __GFP_NOWARN);
573 if (!mem)
574 mem = vmalloc(size);
575 if (!mem)
576 return ERR_PTR(-ENOMEM);
577
578 if (copy_from_user(mem, userptr, size)) {
579 u_free(mem);
580 return ERR_PTR(-EFAULT);
581 }
582
583 return mem;
584}
585
586static int
587nouveau_gem_pushbuf_reloc_apply(struct nouveau_cli *cli,
588 struct drm_nouveau_gem_pushbuf *req,
589 struct drm_nouveau_gem_pushbuf_bo *bo)
590{
591 struct drm_nouveau_gem_pushbuf_reloc *reloc = NULL;
592 int ret = 0;
593 unsigned i;
594
595 reloc = u_memcpya(req->relocs, req->nr_relocs, sizeof(*reloc));
596 if (IS_ERR(reloc))
597 return PTR_ERR(reloc);
598
599 for (i = 0; i < req->nr_relocs; i++) {
600 struct drm_nouveau_gem_pushbuf_reloc *r = &reloc[i];
601 struct drm_nouveau_gem_pushbuf_bo *b;
602 struct nouveau_bo *nvbo;
603 uint32_t data;
604
605 if (unlikely(r->bo_index > req->nr_buffers)) {
606 NV_PRINTK(err, cli, "reloc bo index invalid\n");
607 ret = -EINVAL;
608 break;
609 }
610
611 b = &bo[r->bo_index];
612 if (b->presumed.valid)
613 continue;
614
615 if (unlikely(r->reloc_bo_index > req->nr_buffers)) {
616 NV_PRINTK(err, cli, "reloc container bo index invalid\n");
617 ret = -EINVAL;
618 break;
619 }
620 nvbo = (void *)(unsigned long)bo[r->reloc_bo_index].user_priv;
621
622 if (unlikely(r->reloc_bo_offset + 4 >
623 nvbo->bo.mem.num_pages << PAGE_SHIFT)) {
624 NV_PRINTK(err, cli, "reloc outside of bo\n");
625 ret = -EINVAL;
626 break;
627 }
628
629 if (!nvbo->kmap.virtual) {
630 ret = ttm_bo_kmap(&nvbo->bo, 0, nvbo->bo.mem.num_pages,
631 &nvbo->kmap);
632 if (ret) {
633 NV_PRINTK(err, cli, "failed kmap for reloc\n");
634 break;
635 }
636 nvbo->validate_mapped = true;
637 }
638
639 if (r->flags & NOUVEAU_GEM_RELOC_LOW)
640 data = b->presumed.offset + r->data;
641 else
642 if (r->flags & NOUVEAU_GEM_RELOC_HIGH)
643 data = (b->presumed.offset + r->data) >> 32;
644 else
645 data = r->data;
646
647 if (r->flags & NOUVEAU_GEM_RELOC_OR) {
648 if (b->presumed.domain == NOUVEAU_GEM_DOMAIN_GART)
649 data |= r->tor;
650 else
651 data |= r->vor;
652 }
653
654 ret = ttm_bo_wait(&nvbo->bo, true, false, false);
655 if (ret) {
656 NV_PRINTK(err, cli, "reloc wait_idle failed: %d\n", ret);
657 break;
658 }
659
660 nouveau_bo_wr32(nvbo, r->reloc_bo_offset >> 2, data);
661 }
662
663 u_free(reloc);
664 return ret;
665}
666
667int
668nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data,
669 struct drm_file *file_priv)
670{
671 struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv);
672 struct nouveau_cli *cli = nouveau_cli(file_priv);
673 struct nouveau_abi16_chan *temp;
674 struct nouveau_drm *drm = nouveau_drm(dev);
675 struct drm_nouveau_gem_pushbuf *req = data;
676 struct drm_nouveau_gem_pushbuf_push *push;
677 struct drm_nouveau_gem_pushbuf_bo *bo;
678 struct nouveau_channel *chan = NULL;
679 struct validate_op op;
680 struct nouveau_fence *fence = NULL;
681 int i, j, ret = 0, do_reloc = 0;
682
683 if (unlikely(!abi16))
684 return -ENOMEM;
685
686 list_for_each_entry(temp, &abi16->channels, head) {
687 if (temp->chan->chid == req->channel) {
688 chan = temp->chan;
689 break;
690 }
691 }
692
693 if (!chan)
694 return nouveau_abi16_put(abi16, -ENOENT);
695
696 req->vram_available = drm->gem.vram_available;
697 req->gart_available = drm->gem.gart_available;
698 if (unlikely(req->nr_push == 0))
699 goto out_next;
700
701 if (unlikely(req->nr_push > NOUVEAU_GEM_MAX_PUSH)) {
702 NV_PRINTK(err, cli, "pushbuf push count exceeds limit: %d max %d\n",
703 req->nr_push, NOUVEAU_GEM_MAX_PUSH);
704 return nouveau_abi16_put(abi16, -EINVAL);
705 }
706
707 if (unlikely(req->nr_buffers > NOUVEAU_GEM_MAX_BUFFERS)) {
708 NV_PRINTK(err, cli, "pushbuf bo count exceeds limit: %d max %d\n",
709 req->nr_buffers, NOUVEAU_GEM_MAX_BUFFERS);
710 return nouveau_abi16_put(abi16, -EINVAL);
711 }
712
713 if (unlikely(req->nr_relocs > NOUVEAU_GEM_MAX_RELOCS)) {
714 NV_PRINTK(err, cli, "pushbuf reloc count exceeds limit: %d max %d\n",
715 req->nr_relocs, NOUVEAU_GEM_MAX_RELOCS);
716 return nouveau_abi16_put(abi16, -EINVAL);
717 }
718
719 push = u_memcpya(req->push, req->nr_push, sizeof(*push));
720 if (IS_ERR(push))
721 return nouveau_abi16_put(abi16, PTR_ERR(push));
722
723 bo = u_memcpya(req->buffers, req->nr_buffers, sizeof(*bo));
724 if (IS_ERR(bo)) {
725 u_free(push);
726 return nouveau_abi16_put(abi16, PTR_ERR(bo));
727 }
728
729 /* Ensure all push buffers are on validate list */
730 for (i = 0; i < req->nr_push; i++) {
731 if (push[i].bo_index >= req->nr_buffers) {
732 NV_PRINTK(err, cli, "push %d buffer not in list\n", i);
733 ret = -EINVAL;
734 goto out_prevalid;
735 }
736 }
737
738 /* Validate buffer list */
739 ret = nouveau_gem_pushbuf_validate(chan, file_priv, bo, req->buffers,
740 req->nr_buffers, &op, &do_reloc);
741 if (ret) {
742 if (ret != -ERESTARTSYS)
743 NV_PRINTK(err, cli, "validate: %d\n", ret);
744 goto out_prevalid;
745 }
746
747 /* Apply any relocations that are required */
748 if (do_reloc) {
749 ret = nouveau_gem_pushbuf_reloc_apply(cli, req, bo);
750 if (ret) {
751 NV_PRINTK(err, cli, "reloc apply: %d\n", ret);
752 goto out;
753 }
754 }
755
756 if (chan->dma.ib_max) {
757 ret = nouveau_dma_wait(chan, req->nr_push + 1, 16);
758 if (ret) {
759 NV_PRINTK(err, cli, "nv50cal_space: %d\n", ret);
760 goto out;
761 }
762
763 for (i = 0; i < req->nr_push; i++) {
764 struct nouveau_bo *nvbo = (void *)(unsigned long)
765 bo[push[i].bo_index].user_priv;
766
767 nv50_dma_push(chan, nvbo, push[i].offset,
768 push[i].length);
769 }
770 } else
771 if (drm->device.info.chipset >= 0x25) {
772 ret = RING_SPACE(chan, req->nr_push * 2);
773 if (ret) {
774 NV_PRINTK(err, cli, "cal_space: %d\n", ret);
775 goto out;
776 }
777
778 for (i = 0; i < req->nr_push; i++) {
779 struct nouveau_bo *nvbo = (void *)(unsigned long)
780 bo[push[i].bo_index].user_priv;
781
782 OUT_RING(chan, (nvbo->bo.offset + push[i].offset) | 2);
783 OUT_RING(chan, 0);
784 }
785 } else {
786 ret = RING_SPACE(chan, req->nr_push * (2 + NOUVEAU_DMA_SKIPS));
787 if (ret) {
788 NV_PRINTK(err, cli, "jmp_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 uint32_t cmd;
796
797 cmd = chan->push.vma.offset + ((chan->dma.cur + 2) << 2);
798 cmd |= 0x20000000;
799 if (unlikely(cmd != req->suffix0)) {
800 if (!nvbo->kmap.virtual) {
801 ret = ttm_bo_kmap(&nvbo->bo, 0,
802 nvbo->bo.mem.
803 num_pages,
804 &nvbo->kmap);
805 if (ret) {
806 WIND_RING(chan);
807 goto out;
808 }
809 nvbo->validate_mapped = true;
810 }
811
812 nouveau_bo_wr32(nvbo, (push[i].offset +
813 push[i].length - 8) / 4, cmd);
814 }
815
816 OUT_RING(chan, 0x20000000 |
817 (nvbo->bo.offset + push[i].offset));
818 OUT_RING(chan, 0);
819 for (j = 0; j < NOUVEAU_DMA_SKIPS; j++)
820 OUT_RING(chan, 0);
821 }
822 }
823
824 ret = nouveau_fence_new(chan, false, &fence);
825 if (ret) {
826 NV_PRINTK(err, cli, "error fencing pushbuf: %d\n", ret);
827 WIND_RING(chan);
828 goto out;
829 }
830
831out:
832 validate_fini(&op, fence, bo);
833 nouveau_fence_unref(&fence);
834
835out_prevalid:
836 u_free(bo);
837 u_free(push);
838
839out_next:
840 if (chan->dma.ib_max) {
841 req->suffix0 = 0x00000000;
842 req->suffix1 = 0x00000000;
843 } else
844 if (drm->device.info.chipset >= 0x25) {
845 req->suffix0 = 0x00020000;
846 req->suffix1 = 0x00000000;
847 } else {
848 req->suffix0 = 0x20000000 |
849 (chan->push.vma.offset + ((chan->dma.cur + 2) << 2));
850 req->suffix1 = 0x00000000;
851 }
852
853 return nouveau_abi16_put(abi16, ret);
854}
855
856int
857nouveau_gem_ioctl_cpu_prep(struct drm_device *dev, void *data,
858 struct drm_file *file_priv)
859{
860 struct drm_nouveau_gem_cpu_prep *req = data;
861 struct drm_gem_object *gem;
862 struct nouveau_bo *nvbo;
863 bool no_wait = !!(req->flags & NOUVEAU_GEM_CPU_PREP_NOWAIT);
864 bool write = !!(req->flags & NOUVEAU_GEM_CPU_PREP_WRITE);
865 int ret;
866
867 gem = drm_gem_object_lookup(dev, file_priv, req->handle);
868 if (!gem)
869 return -ENOENT;
870 nvbo = nouveau_gem_object(gem);
871
872 if (no_wait)
873 ret = reservation_object_test_signaled_rcu(nvbo->bo.resv, write) ? 0 : -EBUSY;
874 else {
875 long lret;
876
877 lret = reservation_object_wait_timeout_rcu(nvbo->bo.resv, write, true, 30 * HZ);
878 if (!lret)
879 ret = -EBUSY;
880 else if (lret > 0)
881 ret = 0;
882 else
883 ret = lret;
884 }
885 nouveau_bo_sync_for_cpu(nvbo);
886 drm_gem_object_unreference_unlocked(gem);
887
888 return ret;
889}
890
891int
892nouveau_gem_ioctl_cpu_fini(struct drm_device *dev, void *data,
893 struct drm_file *file_priv)
894{
895 struct drm_nouveau_gem_cpu_fini *req = data;
896 struct drm_gem_object *gem;
897 struct nouveau_bo *nvbo;
898
899 gem = drm_gem_object_lookup(dev, file_priv, req->handle);
900 if (!gem)
901 return -ENOENT;
902 nvbo = nouveau_gem_object(gem);
903
904 nouveau_bo_sync_for_device(nvbo);
905 drm_gem_object_unreference_unlocked(gem);
906 return 0;
907}
908
909int
910nouveau_gem_ioctl_info(struct drm_device *dev, void *data,
911 struct drm_file *file_priv)
912{
913 struct drm_nouveau_gem_info *req = data;
914 struct drm_gem_object *gem;
915 int ret;
916
917 gem = drm_gem_object_lookup(dev, file_priv, req->handle);
918 if (!gem)
919 return -ENOENT;
920
921 ret = nouveau_gem_info(file_priv, gem, req);
922 drm_gem_object_unreference_unlocked(gem);
923 return ret;
924}
925
1/*
2 * Copyright (C) 2008 Ben Skeggs.
3 * All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining
6 * a copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sublicense, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the
14 * next paragraph) shall be included in all copies or substantial
15 * portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 *
25 */
26
27#include <drm/drm_gem_ttm_helper.h>
28
29#include "nouveau_drv.h"
30#include "nouveau_dma.h"
31#include "nouveau_fence.h"
32#include "nouveau_abi16.h"
33
34#include "nouveau_ttm.h"
35#include "nouveau_gem.h"
36#include "nouveau_mem.h"
37#include "nouveau_vmm.h"
38
39#include <nvif/class.h>
40#include <nvif/push206e.h>
41
42static vm_fault_t nouveau_ttm_fault(struct vm_fault *vmf)
43{
44 struct vm_area_struct *vma = vmf->vma;
45 struct ttm_buffer_object *bo = vma->vm_private_data;
46 pgprot_t prot;
47 vm_fault_t ret;
48
49 ret = ttm_bo_vm_reserve(bo, vmf);
50 if (ret)
51 return ret;
52
53 ret = nouveau_ttm_fault_reserve_notify(bo);
54 if (ret)
55 goto error_unlock;
56
57 nouveau_bo_del_io_reserve_lru(bo);
58 prot = vm_get_page_prot(vma->vm_flags);
59 ret = ttm_bo_vm_fault_reserved(vmf, prot, TTM_BO_VM_NUM_PREFAULT);
60 nouveau_bo_add_io_reserve_lru(bo);
61 if (ret == VM_FAULT_RETRY && !(vmf->flags & FAULT_FLAG_RETRY_NOWAIT))
62 return ret;
63
64error_unlock:
65 dma_resv_unlock(bo->base.resv);
66 return ret;
67}
68
69static const struct vm_operations_struct nouveau_ttm_vm_ops = {
70 .fault = nouveau_ttm_fault,
71 .open = ttm_bo_vm_open,
72 .close = ttm_bo_vm_close,
73 .access = ttm_bo_vm_access
74};
75
76void
77nouveau_gem_object_del(struct drm_gem_object *gem)
78{
79 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
80 struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
81 struct device *dev = drm->dev->dev;
82 int ret;
83
84 ret = pm_runtime_get_sync(dev);
85 if (WARN_ON(ret < 0 && ret != -EACCES)) {
86 pm_runtime_put_autosuspend(dev);
87 return;
88 }
89
90 if (gem->import_attach)
91 drm_prime_gem_destroy(gem, nvbo->bo.sg);
92
93 ttm_bo_put(&nvbo->bo);
94
95 pm_runtime_mark_last_busy(dev);
96 pm_runtime_put_autosuspend(dev);
97}
98
99int
100nouveau_gem_object_open(struct drm_gem_object *gem, struct drm_file *file_priv)
101{
102 struct nouveau_cli *cli = nouveau_cli(file_priv);
103 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
104 struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
105 struct device *dev = drm->dev->dev;
106 struct nouveau_vmm *vmm = cli->svm.cli ? &cli->svm : &cli->vmm;
107 struct nouveau_vma *vma;
108 int ret;
109
110 if (vmm->vmm.object.oclass < NVIF_CLASS_VMM_NV50)
111 return 0;
112
113 ret = ttm_bo_reserve(&nvbo->bo, false, false, NULL);
114 if (ret)
115 return ret;
116
117 ret = pm_runtime_get_sync(dev);
118 if (ret < 0 && ret != -EACCES) {
119 pm_runtime_put_autosuspend(dev);
120 goto out;
121 }
122
123 ret = nouveau_vma_new(nvbo, vmm, &vma);
124 pm_runtime_mark_last_busy(dev);
125 pm_runtime_put_autosuspend(dev);
126out:
127 ttm_bo_unreserve(&nvbo->bo);
128 return ret;
129}
130
131struct nouveau_gem_object_unmap {
132 struct nouveau_cli_work work;
133 struct nouveau_vma *vma;
134};
135
136static void
137nouveau_gem_object_delete(struct nouveau_vma *vma)
138{
139 nouveau_fence_unref(&vma->fence);
140 nouveau_vma_del(&vma);
141}
142
143static void
144nouveau_gem_object_delete_work(struct nouveau_cli_work *w)
145{
146 struct nouveau_gem_object_unmap *work =
147 container_of(w, typeof(*work), work);
148 nouveau_gem_object_delete(work->vma);
149 kfree(work);
150}
151
152static void
153nouveau_gem_object_unmap(struct nouveau_bo *nvbo, struct nouveau_vma *vma)
154{
155 struct dma_fence *fence = vma->fence ? &vma->fence->base : NULL;
156 struct nouveau_gem_object_unmap *work;
157
158 list_del_init(&vma->head);
159
160 if (!fence) {
161 nouveau_gem_object_delete(vma);
162 return;
163 }
164
165 if (!(work = kmalloc(sizeof(*work), GFP_KERNEL))) {
166 WARN_ON(dma_fence_wait_timeout(fence, false, 2 * HZ) <= 0);
167 nouveau_gem_object_delete(vma);
168 return;
169 }
170
171 work->work.func = nouveau_gem_object_delete_work;
172 work->vma = vma;
173 nouveau_cli_work_queue(vma->vmm->cli, fence, &work->work);
174}
175
176void
177nouveau_gem_object_close(struct drm_gem_object *gem, struct drm_file *file_priv)
178{
179 struct nouveau_cli *cli = nouveau_cli(file_priv);
180 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
181 struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
182 struct device *dev = drm->dev->dev;
183 struct nouveau_vmm *vmm = cli->svm.cli ? &cli->svm : & cli->vmm;
184 struct nouveau_vma *vma;
185 int ret;
186
187 if (vmm->vmm.object.oclass < NVIF_CLASS_VMM_NV50)
188 return;
189
190 ret = ttm_bo_reserve(&nvbo->bo, false, false, NULL);
191 if (ret)
192 return;
193
194 vma = nouveau_vma_find(nvbo, vmm);
195 if (vma) {
196 if (--vma->refs == 0) {
197 ret = pm_runtime_get_sync(dev);
198 if (!WARN_ON(ret < 0 && ret != -EACCES)) {
199 nouveau_gem_object_unmap(nvbo, vma);
200 pm_runtime_mark_last_busy(dev);
201 }
202 pm_runtime_put_autosuspend(dev);
203 }
204 }
205 ttm_bo_unreserve(&nvbo->bo);
206}
207
208const struct drm_gem_object_funcs nouveau_gem_object_funcs = {
209 .free = nouveau_gem_object_del,
210 .open = nouveau_gem_object_open,
211 .close = nouveau_gem_object_close,
212 .pin = nouveau_gem_prime_pin,
213 .unpin = nouveau_gem_prime_unpin,
214 .get_sg_table = nouveau_gem_prime_get_sg_table,
215 .vmap = drm_gem_ttm_vmap,
216 .vunmap = drm_gem_ttm_vunmap,
217 .mmap = drm_gem_ttm_mmap,
218 .vm_ops = &nouveau_ttm_vm_ops,
219};
220
221int
222nouveau_gem_new(struct nouveau_cli *cli, u64 size, int align, uint32_t domain,
223 uint32_t tile_mode, uint32_t tile_flags,
224 struct nouveau_bo **pnvbo)
225{
226 struct nouveau_drm *drm = cli->drm;
227 struct nouveau_bo *nvbo;
228 int ret;
229
230 if (!(domain & (NOUVEAU_GEM_DOMAIN_VRAM | NOUVEAU_GEM_DOMAIN_GART)))
231 domain |= NOUVEAU_GEM_DOMAIN_CPU;
232
233 nvbo = nouveau_bo_alloc(cli, &size, &align, domain, tile_mode,
234 tile_flags);
235 if (IS_ERR(nvbo))
236 return PTR_ERR(nvbo);
237
238 nvbo->bo.base.funcs = &nouveau_gem_object_funcs;
239
240 /* Initialize the embedded gem-object. We return a single gem-reference
241 * to the caller, instead of a normal nouveau_bo ttm reference. */
242 ret = drm_gem_object_init(drm->dev, &nvbo->bo.base, size);
243 if (ret) {
244 drm_gem_object_release(&nvbo->bo.base);
245 kfree(nvbo);
246 return ret;
247 }
248
249 ret = nouveau_bo_init(nvbo, size, align, domain, NULL, NULL);
250 if (ret)
251 return ret;
252
253 /* we restrict allowed domains on nv50+ to only the types
254 * that were requested at creation time. not possibly on
255 * earlier chips without busting the ABI.
256 */
257 nvbo->valid_domains = NOUVEAU_GEM_DOMAIN_VRAM |
258 NOUVEAU_GEM_DOMAIN_GART;
259 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA)
260 nvbo->valid_domains &= domain;
261
262 *pnvbo = nvbo;
263 return 0;
264}
265
266static int
267nouveau_gem_info(struct drm_file *file_priv, struct drm_gem_object *gem,
268 struct drm_nouveau_gem_info *rep)
269{
270 struct nouveau_cli *cli = nouveau_cli(file_priv);
271 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
272 struct nouveau_vmm *vmm = cli->svm.cli ? &cli->svm : &cli->vmm;
273 struct nouveau_vma *vma;
274
275 if (is_power_of_2(nvbo->valid_domains))
276 rep->domain = nvbo->valid_domains;
277 else if (nvbo->bo.resource->mem_type == TTM_PL_TT)
278 rep->domain = NOUVEAU_GEM_DOMAIN_GART;
279 else
280 rep->domain = NOUVEAU_GEM_DOMAIN_VRAM;
281 rep->offset = nvbo->offset;
282 if (vmm->vmm.object.oclass >= NVIF_CLASS_VMM_NV50) {
283 vma = nouveau_vma_find(nvbo, vmm);
284 if (!vma)
285 return -EINVAL;
286
287 rep->offset = vma->addr;
288 }
289
290 rep->size = nvbo->bo.base.size;
291 rep->map_handle = drm_vma_node_offset_addr(&nvbo->bo.base.vma_node);
292 rep->tile_mode = nvbo->mode;
293 rep->tile_flags = nvbo->contig ? 0 : NOUVEAU_GEM_TILE_NONCONTIG;
294 if (cli->device.info.family >= NV_DEVICE_INFO_V0_FERMI)
295 rep->tile_flags |= nvbo->kind << 8;
296 else
297 if (cli->device.info.family >= NV_DEVICE_INFO_V0_TESLA)
298 rep->tile_flags |= nvbo->kind << 8 | nvbo->comp << 16;
299 else
300 rep->tile_flags |= nvbo->zeta;
301 return 0;
302}
303
304int
305nouveau_gem_ioctl_new(struct drm_device *dev, void *data,
306 struct drm_file *file_priv)
307{
308 struct nouveau_cli *cli = nouveau_cli(file_priv);
309 struct drm_nouveau_gem_new *req = data;
310 struct nouveau_bo *nvbo = NULL;
311 int ret = 0;
312
313 ret = nouveau_gem_new(cli, req->info.size, req->align,
314 req->info.domain, req->info.tile_mode,
315 req->info.tile_flags, &nvbo);
316 if (ret)
317 return ret;
318
319 ret = drm_gem_handle_create(file_priv, &nvbo->bo.base,
320 &req->info.handle);
321 if (ret == 0) {
322 ret = nouveau_gem_info(file_priv, &nvbo->bo.base, &req->info);
323 if (ret)
324 drm_gem_handle_delete(file_priv, req->info.handle);
325 }
326
327 /* drop reference from allocate - handle holds it now */
328 drm_gem_object_put(&nvbo->bo.base);
329 return ret;
330}
331
332static int
333nouveau_gem_set_domain(struct drm_gem_object *gem, uint32_t read_domains,
334 uint32_t write_domains, uint32_t valid_domains)
335{
336 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
337 struct ttm_buffer_object *bo = &nvbo->bo;
338 uint32_t domains = valid_domains & nvbo->valid_domains &
339 (write_domains ? write_domains : read_domains);
340 uint32_t pref_domains = 0;
341
342 if (!domains)
343 return -EINVAL;
344
345 valid_domains &= ~(NOUVEAU_GEM_DOMAIN_VRAM | NOUVEAU_GEM_DOMAIN_GART);
346
347 if ((domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
348 bo->resource->mem_type == TTM_PL_VRAM)
349 pref_domains |= NOUVEAU_GEM_DOMAIN_VRAM;
350
351 else if ((domains & NOUVEAU_GEM_DOMAIN_GART) &&
352 bo->resource->mem_type == TTM_PL_TT)
353 pref_domains |= NOUVEAU_GEM_DOMAIN_GART;
354
355 else if (domains & NOUVEAU_GEM_DOMAIN_VRAM)
356 pref_domains |= NOUVEAU_GEM_DOMAIN_VRAM;
357
358 else
359 pref_domains |= NOUVEAU_GEM_DOMAIN_GART;
360
361 nouveau_bo_placement_set(nvbo, pref_domains, valid_domains);
362
363 return 0;
364}
365
366struct validate_op {
367 struct list_head list;
368 struct ww_acquire_ctx ticket;
369};
370
371static void
372validate_fini_no_ticket(struct validate_op *op, struct nouveau_channel *chan,
373 struct nouveau_fence *fence,
374 struct drm_nouveau_gem_pushbuf_bo *pbbo)
375{
376 struct nouveau_bo *nvbo;
377 struct drm_nouveau_gem_pushbuf_bo *b;
378
379 while (!list_empty(&op->list)) {
380 nvbo = list_entry(op->list.next, struct nouveau_bo, entry);
381 b = &pbbo[nvbo->pbbo_index];
382
383 if (likely(fence)) {
384 nouveau_bo_fence(nvbo, fence, !!b->write_domains);
385
386 if (chan->vmm->vmm.object.oclass >= NVIF_CLASS_VMM_NV50) {
387 struct nouveau_vma *vma =
388 (void *)(unsigned long)b->user_priv;
389 nouveau_fence_unref(&vma->fence);
390 dma_fence_get(&fence->base);
391 vma->fence = fence;
392 }
393 }
394
395 if (unlikely(nvbo->validate_mapped)) {
396 ttm_bo_kunmap(&nvbo->kmap);
397 nvbo->validate_mapped = false;
398 }
399
400 list_del(&nvbo->entry);
401 nvbo->reserved_by = NULL;
402 ttm_bo_unreserve(&nvbo->bo);
403 drm_gem_object_put(&nvbo->bo.base);
404 }
405}
406
407static void
408validate_fini(struct validate_op *op, struct nouveau_channel *chan,
409 struct nouveau_fence *fence,
410 struct drm_nouveau_gem_pushbuf_bo *pbbo)
411{
412 validate_fini_no_ticket(op, chan, fence, pbbo);
413 ww_acquire_fini(&op->ticket);
414}
415
416static int
417validate_init(struct nouveau_channel *chan, struct drm_file *file_priv,
418 struct drm_nouveau_gem_pushbuf_bo *pbbo,
419 int nr_buffers, struct validate_op *op)
420{
421 struct nouveau_cli *cli = nouveau_cli(file_priv);
422 int trycnt = 0;
423 int ret = -EINVAL, i;
424 struct nouveau_bo *res_bo = NULL;
425 LIST_HEAD(gart_list);
426 LIST_HEAD(vram_list);
427 LIST_HEAD(both_list);
428
429 ww_acquire_init(&op->ticket, &reservation_ww_class);
430retry:
431 if (++trycnt > 100000) {
432 NV_PRINTK(err, cli, "%s failed and gave up.\n", __func__);
433 return -EINVAL;
434 }
435
436 for (i = 0; i < nr_buffers; i++) {
437 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[i];
438 struct drm_gem_object *gem;
439 struct nouveau_bo *nvbo;
440
441 gem = drm_gem_object_lookup(file_priv, b->handle);
442 if (!gem) {
443 NV_PRINTK(err, cli, "Unknown handle 0x%08x\n", b->handle);
444 ret = -ENOENT;
445 break;
446 }
447 nvbo = nouveau_gem_object(gem);
448 if (nvbo == res_bo) {
449 res_bo = NULL;
450 drm_gem_object_put(gem);
451 continue;
452 }
453
454 if (nvbo->reserved_by && nvbo->reserved_by == file_priv) {
455 NV_PRINTK(err, cli, "multiple instances of buffer %d on "
456 "validation list\n", b->handle);
457 drm_gem_object_put(gem);
458 ret = -EINVAL;
459 break;
460 }
461
462 ret = ttm_bo_reserve(&nvbo->bo, true, false, &op->ticket);
463 if (ret) {
464 list_splice_tail_init(&vram_list, &op->list);
465 list_splice_tail_init(&gart_list, &op->list);
466 list_splice_tail_init(&both_list, &op->list);
467 validate_fini_no_ticket(op, chan, NULL, NULL);
468 if (unlikely(ret == -EDEADLK)) {
469 ret = ttm_bo_reserve_slowpath(&nvbo->bo, true,
470 &op->ticket);
471 if (!ret)
472 res_bo = nvbo;
473 }
474 if (unlikely(ret)) {
475 if (ret != -ERESTARTSYS)
476 NV_PRINTK(err, cli, "fail reserve\n");
477 break;
478 }
479 }
480
481 if (chan->vmm->vmm.object.oclass >= NVIF_CLASS_VMM_NV50) {
482 struct nouveau_vmm *vmm = chan->vmm;
483 struct nouveau_vma *vma = nouveau_vma_find(nvbo, vmm);
484 if (!vma) {
485 NV_PRINTK(err, cli, "vma not found!\n");
486 ret = -EINVAL;
487 break;
488 }
489
490 b->user_priv = (uint64_t)(unsigned long)vma;
491 } else {
492 b->user_priv = (uint64_t)(unsigned long)nvbo;
493 }
494
495 nvbo->reserved_by = file_priv;
496 nvbo->pbbo_index = i;
497 if ((b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
498 (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART))
499 list_add_tail(&nvbo->entry, &both_list);
500 else
501 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM)
502 list_add_tail(&nvbo->entry, &vram_list);
503 else
504 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART)
505 list_add_tail(&nvbo->entry, &gart_list);
506 else {
507 NV_PRINTK(err, cli, "invalid valid domains: 0x%08x\n",
508 b->valid_domains);
509 list_add_tail(&nvbo->entry, &both_list);
510 ret = -EINVAL;
511 break;
512 }
513 if (nvbo == res_bo)
514 goto retry;
515 }
516
517 ww_acquire_done(&op->ticket);
518 list_splice_tail(&vram_list, &op->list);
519 list_splice_tail(&gart_list, &op->list);
520 list_splice_tail(&both_list, &op->list);
521 if (ret)
522 validate_fini(op, chan, NULL, NULL);
523 return ret;
524
525}
526
527static int
528validate_list(struct nouveau_channel *chan, struct nouveau_cli *cli,
529 struct list_head *list, struct drm_nouveau_gem_pushbuf_bo *pbbo)
530{
531 struct nouveau_drm *drm = chan->drm;
532 struct nouveau_bo *nvbo;
533 int ret, relocs = 0;
534
535 list_for_each_entry(nvbo, list, entry) {
536 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[nvbo->pbbo_index];
537
538 ret = nouveau_gem_set_domain(&nvbo->bo.base, b->read_domains,
539 b->write_domains,
540 b->valid_domains);
541 if (unlikely(ret)) {
542 NV_PRINTK(err, cli, "fail set_domain\n");
543 return ret;
544 }
545
546 ret = nouveau_bo_validate(nvbo, true, false);
547 if (unlikely(ret)) {
548 if (ret != -ERESTARTSYS)
549 NV_PRINTK(err, cli, "fail ttm_validate\n");
550 return ret;
551 }
552
553 ret = nouveau_fence_sync(nvbo, chan, !!b->write_domains, true);
554 if (unlikely(ret)) {
555 if (ret != -ERESTARTSYS)
556 NV_PRINTK(err, cli, "fail post-validate sync\n");
557 return ret;
558 }
559
560 if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA) {
561 if (nvbo->offset == b->presumed.offset &&
562 ((nvbo->bo.resource->mem_type == TTM_PL_VRAM &&
563 b->presumed.domain & NOUVEAU_GEM_DOMAIN_VRAM) ||
564 (nvbo->bo.resource->mem_type == TTM_PL_TT &&
565 b->presumed.domain & NOUVEAU_GEM_DOMAIN_GART)))
566 continue;
567
568 if (nvbo->bo.resource->mem_type == TTM_PL_TT)
569 b->presumed.domain = NOUVEAU_GEM_DOMAIN_GART;
570 else
571 b->presumed.domain = NOUVEAU_GEM_DOMAIN_VRAM;
572 b->presumed.offset = nvbo->offset;
573 b->presumed.valid = 0;
574 relocs++;
575 }
576 }
577
578 return relocs;
579}
580
581static int
582nouveau_gem_pushbuf_validate(struct nouveau_channel *chan,
583 struct drm_file *file_priv,
584 struct drm_nouveau_gem_pushbuf_bo *pbbo,
585 int nr_buffers,
586 struct validate_op *op, bool *apply_relocs)
587{
588 struct nouveau_cli *cli = nouveau_cli(file_priv);
589 int ret;
590
591 INIT_LIST_HEAD(&op->list);
592
593 if (nr_buffers == 0)
594 return 0;
595
596 ret = validate_init(chan, file_priv, pbbo, nr_buffers, op);
597 if (unlikely(ret)) {
598 if (ret != -ERESTARTSYS)
599 NV_PRINTK(err, cli, "validate_init\n");
600 return ret;
601 }
602
603 ret = validate_list(chan, cli, &op->list, pbbo);
604 if (unlikely(ret < 0)) {
605 if (ret != -ERESTARTSYS)
606 NV_PRINTK(err, cli, "validating bo list\n");
607 validate_fini(op, chan, NULL, NULL);
608 return ret;
609 } else if (ret > 0) {
610 *apply_relocs = true;
611 }
612
613 return 0;
614}
615
616static inline void
617u_free(void *addr)
618{
619 kvfree(addr);
620}
621
622static inline void *
623u_memcpya(uint64_t user, unsigned nmemb, unsigned size)
624{
625 void *mem;
626 void __user *userptr = (void __force __user *)(uintptr_t)user;
627
628 size *= nmemb;
629
630 mem = kvmalloc(size, GFP_KERNEL);
631 if (!mem)
632 return ERR_PTR(-ENOMEM);
633
634 if (copy_from_user(mem, userptr, size)) {
635 u_free(mem);
636 return ERR_PTR(-EFAULT);
637 }
638
639 return mem;
640}
641
642static int
643nouveau_gem_pushbuf_reloc_apply(struct nouveau_cli *cli,
644 struct drm_nouveau_gem_pushbuf *req,
645 struct drm_nouveau_gem_pushbuf_reloc *reloc,
646 struct drm_nouveau_gem_pushbuf_bo *bo)
647{
648 int ret = 0;
649 unsigned i;
650
651 for (i = 0; i < req->nr_relocs; i++) {
652 struct drm_nouveau_gem_pushbuf_reloc *r = &reloc[i];
653 struct drm_nouveau_gem_pushbuf_bo *b;
654 struct nouveau_bo *nvbo;
655 uint32_t data;
656
657 if (unlikely(r->bo_index >= req->nr_buffers)) {
658 NV_PRINTK(err, cli, "reloc bo index invalid\n");
659 ret = -EINVAL;
660 break;
661 }
662
663 b = &bo[r->bo_index];
664 if (b->presumed.valid)
665 continue;
666
667 if (unlikely(r->reloc_bo_index >= req->nr_buffers)) {
668 NV_PRINTK(err, cli, "reloc container bo index invalid\n");
669 ret = -EINVAL;
670 break;
671 }
672 nvbo = (void *)(unsigned long)bo[r->reloc_bo_index].user_priv;
673
674 if (unlikely(r->reloc_bo_offset + 4 >
675 nvbo->bo.base.size)) {
676 NV_PRINTK(err, cli, "reloc outside of bo\n");
677 ret = -EINVAL;
678 break;
679 }
680
681 if (!nvbo->kmap.virtual) {
682 ret = ttm_bo_kmap(&nvbo->bo, 0, PFN_UP(nvbo->bo.base.size),
683 &nvbo->kmap);
684 if (ret) {
685 NV_PRINTK(err, cli, "failed kmap for reloc\n");
686 break;
687 }
688 nvbo->validate_mapped = true;
689 }
690
691 if (r->flags & NOUVEAU_GEM_RELOC_LOW)
692 data = b->presumed.offset + r->data;
693 else
694 if (r->flags & NOUVEAU_GEM_RELOC_HIGH)
695 data = (b->presumed.offset + r->data) >> 32;
696 else
697 data = r->data;
698
699 if (r->flags & NOUVEAU_GEM_RELOC_OR) {
700 if (b->presumed.domain == NOUVEAU_GEM_DOMAIN_GART)
701 data |= r->tor;
702 else
703 data |= r->vor;
704 }
705
706 ret = ttm_bo_wait(&nvbo->bo, false, false);
707 if (ret) {
708 NV_PRINTK(err, cli, "reloc wait_idle failed: %d\n", ret);
709 break;
710 }
711
712 nouveau_bo_wr32(nvbo, r->reloc_bo_offset >> 2, data);
713 }
714
715 return ret;
716}
717
718int
719nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data,
720 struct drm_file *file_priv)
721{
722 struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv);
723 struct nouveau_cli *cli = nouveau_cli(file_priv);
724 struct nouveau_abi16_chan *temp;
725 struct nouveau_drm *drm = nouveau_drm(dev);
726 struct drm_nouveau_gem_pushbuf *req = data;
727 struct drm_nouveau_gem_pushbuf_push *push;
728 struct drm_nouveau_gem_pushbuf_reloc *reloc = NULL;
729 struct drm_nouveau_gem_pushbuf_bo *bo;
730 struct nouveau_channel *chan = NULL;
731 struct validate_op op;
732 struct nouveau_fence *fence = NULL;
733 int i, j, ret = 0;
734 bool do_reloc = false, sync = false;
735
736 if (unlikely(!abi16))
737 return -ENOMEM;
738
739 list_for_each_entry(temp, &abi16->channels, head) {
740 if (temp->chan->chid == req->channel) {
741 chan = temp->chan;
742 break;
743 }
744 }
745
746 if (!chan)
747 return nouveau_abi16_put(abi16, -ENOENT);
748 if (unlikely(atomic_read(&chan->killed)))
749 return nouveau_abi16_put(abi16, -ENODEV);
750
751 sync = req->vram_available & NOUVEAU_GEM_PUSHBUF_SYNC;
752
753 req->vram_available = drm->gem.vram_available;
754 req->gart_available = drm->gem.gart_available;
755 if (unlikely(req->nr_push == 0))
756 goto out_next;
757
758 if (unlikely(req->nr_push > NOUVEAU_GEM_MAX_PUSH)) {
759 NV_PRINTK(err, cli, "pushbuf push count exceeds limit: %d max %d\n",
760 req->nr_push, NOUVEAU_GEM_MAX_PUSH);
761 return nouveau_abi16_put(abi16, -EINVAL);
762 }
763
764 if (unlikely(req->nr_buffers > NOUVEAU_GEM_MAX_BUFFERS)) {
765 NV_PRINTK(err, cli, "pushbuf bo count exceeds limit: %d max %d\n",
766 req->nr_buffers, NOUVEAU_GEM_MAX_BUFFERS);
767 return nouveau_abi16_put(abi16, -EINVAL);
768 }
769
770 if (unlikely(req->nr_relocs > NOUVEAU_GEM_MAX_RELOCS)) {
771 NV_PRINTK(err, cli, "pushbuf reloc count exceeds limit: %d max %d\n",
772 req->nr_relocs, NOUVEAU_GEM_MAX_RELOCS);
773 return nouveau_abi16_put(abi16, -EINVAL);
774 }
775
776 push = u_memcpya(req->push, req->nr_push, sizeof(*push));
777 if (IS_ERR(push))
778 return nouveau_abi16_put(abi16, PTR_ERR(push));
779
780 bo = u_memcpya(req->buffers, req->nr_buffers, sizeof(*bo));
781 if (IS_ERR(bo)) {
782 u_free(push);
783 return nouveau_abi16_put(abi16, PTR_ERR(bo));
784 }
785
786 /* Ensure all push buffers are on validate list */
787 for (i = 0; i < req->nr_push; i++) {
788 if (push[i].bo_index >= req->nr_buffers) {
789 NV_PRINTK(err, cli, "push %d buffer not in list\n", i);
790 ret = -EINVAL;
791 goto out_prevalid;
792 }
793 }
794
795 /* Validate buffer list */
796revalidate:
797 ret = nouveau_gem_pushbuf_validate(chan, file_priv, bo,
798 req->nr_buffers, &op, &do_reloc);
799 if (ret) {
800 if (ret != -ERESTARTSYS)
801 NV_PRINTK(err, cli, "validate: %d\n", ret);
802 goto out_prevalid;
803 }
804
805 /* Apply any relocations that are required */
806 if (do_reloc) {
807 if (!reloc) {
808 validate_fini(&op, chan, NULL, bo);
809 reloc = u_memcpya(req->relocs, req->nr_relocs, sizeof(*reloc));
810 if (IS_ERR(reloc)) {
811 ret = PTR_ERR(reloc);
812 goto out_prevalid;
813 }
814
815 goto revalidate;
816 }
817
818 ret = nouveau_gem_pushbuf_reloc_apply(cli, req, reloc, bo);
819 if (ret) {
820 NV_PRINTK(err, cli, "reloc apply: %d\n", ret);
821 goto out;
822 }
823 }
824
825 if (chan->dma.ib_max) {
826 ret = nouveau_dma_wait(chan, req->nr_push + 1, 16);
827 if (ret) {
828 NV_PRINTK(err, cli, "nv50cal_space: %d\n", ret);
829 goto out;
830 }
831
832 for (i = 0; i < req->nr_push; i++) {
833 struct nouveau_vma *vma = (void *)(unsigned long)
834 bo[push[i].bo_index].user_priv;
835
836 nv50_dma_push(chan, vma->addr + push[i].offset,
837 push[i].length);
838 }
839 } else
840 if (drm->client.device.info.chipset >= 0x25) {
841 ret = PUSH_WAIT(chan->chan.push, req->nr_push * 2);
842 if (ret) {
843 NV_PRINTK(err, cli, "cal_space: %d\n", ret);
844 goto out;
845 }
846
847 for (i = 0; i < req->nr_push; i++) {
848 struct nouveau_bo *nvbo = (void *)(unsigned long)
849 bo[push[i].bo_index].user_priv;
850
851 PUSH_CALL(chan->chan.push, nvbo->offset + push[i].offset);
852 PUSH_DATA(chan->chan.push, 0);
853 }
854 } else {
855 ret = PUSH_WAIT(chan->chan.push, req->nr_push * (2 + NOUVEAU_DMA_SKIPS));
856 if (ret) {
857 NV_PRINTK(err, cli, "jmp_space: %d\n", ret);
858 goto out;
859 }
860
861 for (i = 0; i < req->nr_push; i++) {
862 struct nouveau_bo *nvbo = (void *)(unsigned long)
863 bo[push[i].bo_index].user_priv;
864 uint32_t cmd;
865
866 cmd = chan->push.addr + ((chan->dma.cur + 2) << 2);
867 cmd |= 0x20000000;
868 if (unlikely(cmd != req->suffix0)) {
869 if (!nvbo->kmap.virtual) {
870 ret = ttm_bo_kmap(&nvbo->bo, 0,
871 PFN_UP(nvbo->bo.base.size),
872 &nvbo->kmap);
873 if (ret) {
874 WIND_RING(chan);
875 goto out;
876 }
877 nvbo->validate_mapped = true;
878 }
879
880 nouveau_bo_wr32(nvbo, (push[i].offset +
881 push[i].length - 8) / 4, cmd);
882 }
883
884 PUSH_JUMP(chan->chan.push, nvbo->offset + push[i].offset);
885 PUSH_DATA(chan->chan.push, 0);
886 for (j = 0; j < NOUVEAU_DMA_SKIPS; j++)
887 PUSH_DATA(chan->chan.push, 0);
888 }
889 }
890
891 ret = nouveau_fence_new(chan, false, &fence);
892 if (ret) {
893 NV_PRINTK(err, cli, "error fencing pushbuf: %d\n", ret);
894 WIND_RING(chan);
895 goto out;
896 }
897
898 if (sync) {
899 if (!(ret = nouveau_fence_wait(fence, false, false))) {
900 if ((ret = dma_fence_get_status(&fence->base)) == 1)
901 ret = 0;
902 }
903 }
904
905out:
906 validate_fini(&op, chan, fence, bo);
907 nouveau_fence_unref(&fence);
908
909 if (do_reloc) {
910 struct drm_nouveau_gem_pushbuf_bo __user *upbbo =
911 u64_to_user_ptr(req->buffers);
912
913 for (i = 0; i < req->nr_buffers; i++) {
914 if (bo[i].presumed.valid)
915 continue;
916
917 if (copy_to_user(&upbbo[i].presumed, &bo[i].presumed,
918 sizeof(bo[i].presumed))) {
919 ret = -EFAULT;
920 break;
921 }
922 }
923 }
924out_prevalid:
925 if (!IS_ERR(reloc))
926 u_free(reloc);
927 u_free(bo);
928 u_free(push);
929
930out_next:
931 if (chan->dma.ib_max) {
932 req->suffix0 = 0x00000000;
933 req->suffix1 = 0x00000000;
934 } else
935 if (drm->client.device.info.chipset >= 0x25) {
936 req->suffix0 = 0x00020000;
937 req->suffix1 = 0x00000000;
938 } else {
939 req->suffix0 = 0x20000000 |
940 (chan->push.addr + ((chan->dma.cur + 2) << 2));
941 req->suffix1 = 0x00000000;
942 }
943
944 return nouveau_abi16_put(abi16, ret);
945}
946
947int
948nouveau_gem_ioctl_cpu_prep(struct drm_device *dev, void *data,
949 struct drm_file *file_priv)
950{
951 struct drm_nouveau_gem_cpu_prep *req = data;
952 struct drm_gem_object *gem;
953 struct nouveau_bo *nvbo;
954 bool no_wait = !!(req->flags & NOUVEAU_GEM_CPU_PREP_NOWAIT);
955 bool write = !!(req->flags & NOUVEAU_GEM_CPU_PREP_WRITE);
956 long lret;
957 int ret;
958
959 gem = drm_gem_object_lookup(file_priv, req->handle);
960 if (!gem)
961 return -ENOENT;
962 nvbo = nouveau_gem_object(gem);
963
964 lret = dma_resv_wait_timeout(nvbo->bo.base.resv,
965 dma_resv_usage_rw(write), true,
966 no_wait ? 0 : 30 * HZ);
967 if (!lret)
968 ret = -EBUSY;
969 else if (lret > 0)
970 ret = 0;
971 else
972 ret = lret;
973
974 nouveau_bo_sync_for_cpu(nvbo);
975 drm_gem_object_put(gem);
976
977 return ret;
978}
979
980int
981nouveau_gem_ioctl_cpu_fini(struct drm_device *dev, void *data,
982 struct drm_file *file_priv)
983{
984 struct drm_nouveau_gem_cpu_fini *req = data;
985 struct drm_gem_object *gem;
986 struct nouveau_bo *nvbo;
987
988 gem = drm_gem_object_lookup(file_priv, req->handle);
989 if (!gem)
990 return -ENOENT;
991 nvbo = nouveau_gem_object(gem);
992
993 nouveau_bo_sync_for_device(nvbo);
994 drm_gem_object_put(gem);
995 return 0;
996}
997
998int
999nouveau_gem_ioctl_info(struct drm_device *dev, void *data,
1000 struct drm_file *file_priv)
1001{
1002 struct drm_nouveau_gem_info *req = data;
1003 struct drm_gem_object *gem;
1004 int ret;
1005
1006 gem = drm_gem_object_lookup(file_priv, req->handle);
1007 if (!gem)
1008 return -ENOENT;
1009
1010 ret = nouveau_gem_info(file_priv, gem, req);
1011 drm_gem_object_put(gem);
1012 return ret;
1013}
1014