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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#include "drmP.h"
27#include "drm.h"
28
29#include "nouveau_drv.h"
30#include "nouveau_drm.h"
31#include "nouveau_dma.h"
32
33#define nouveau_gem_pushbuf_sync(chan) 0
34
35int
36nouveau_gem_object_new(struct drm_gem_object *gem)
37{
38 return 0;
39}
40
41void
42nouveau_gem_object_del(struct drm_gem_object *gem)
43{
44 struct nouveau_bo *nvbo = gem->driver_private;
45 struct ttm_buffer_object *bo = &nvbo->bo;
46
47 if (!nvbo)
48 return;
49 nvbo->gem = NULL;
50
51 if (unlikely(nvbo->pin_refcnt)) {
52 nvbo->pin_refcnt = 1;
53 nouveau_bo_unpin(nvbo);
54 }
55
56 ttm_bo_unref(&bo);
57
58 drm_gem_object_release(gem);
59 kfree(gem);
60}
61
62int
63nouveau_gem_object_open(struct drm_gem_object *gem, struct drm_file *file_priv)
64{
65 struct nouveau_fpriv *fpriv = nouveau_fpriv(file_priv);
66 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
67 struct nouveau_vma *vma;
68 int ret;
69
70 if (!fpriv->vm)
71 return 0;
72
73 ret = ttm_bo_reserve(&nvbo->bo, false, false, false, 0);
74 if (ret)
75 return ret;
76
77 vma = nouveau_bo_vma_find(nvbo, fpriv->vm);
78 if (!vma) {
79 vma = kzalloc(sizeof(*vma), GFP_KERNEL);
80 if (!vma) {
81 ret = -ENOMEM;
82 goto out;
83 }
84
85 ret = nouveau_bo_vma_add(nvbo, fpriv->vm, vma);
86 if (ret) {
87 kfree(vma);
88 goto out;
89 }
90 } else {
91 vma->refcount++;
92 }
93
94out:
95 ttm_bo_unreserve(&nvbo->bo);
96 return ret;
97}
98
99void
100nouveau_gem_object_close(struct drm_gem_object *gem, struct drm_file *file_priv)
101{
102 struct nouveau_fpriv *fpriv = nouveau_fpriv(file_priv);
103 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
104 struct nouveau_vma *vma;
105 int ret;
106
107 if (!fpriv->vm)
108 return;
109
110 ret = ttm_bo_reserve(&nvbo->bo, false, false, false, 0);
111 if (ret)
112 return;
113
114 vma = nouveau_bo_vma_find(nvbo, fpriv->vm);
115 if (vma) {
116 if (--vma->refcount == 0) {
117 nouveau_bo_vma_del(nvbo, vma);
118 kfree(vma);
119 }
120 }
121 ttm_bo_unreserve(&nvbo->bo);
122}
123
124int
125nouveau_gem_new(struct drm_device *dev, int size, int align, uint32_t domain,
126 uint32_t tile_mode, uint32_t tile_flags,
127 struct nouveau_bo **pnvbo)
128{
129 struct drm_nouveau_private *dev_priv = dev->dev_private;
130 struct nouveau_bo *nvbo;
131 u32 flags = 0;
132 int ret;
133
134 if (domain & NOUVEAU_GEM_DOMAIN_VRAM)
135 flags |= TTM_PL_FLAG_VRAM;
136 if (domain & NOUVEAU_GEM_DOMAIN_GART)
137 flags |= TTM_PL_FLAG_TT;
138 if (!flags || domain & NOUVEAU_GEM_DOMAIN_CPU)
139 flags |= TTM_PL_FLAG_SYSTEM;
140
141 ret = nouveau_bo_new(dev, size, align, flags, tile_mode,
142 tile_flags, pnvbo);
143 if (ret)
144 return ret;
145 nvbo = *pnvbo;
146
147 /* we restrict allowed domains on nv50+ to only the types
148 * that were requested at creation time. not possibly on
149 * earlier chips without busting the ABI.
150 */
151 nvbo->valid_domains = NOUVEAU_GEM_DOMAIN_VRAM |
152 NOUVEAU_GEM_DOMAIN_GART;
153 if (dev_priv->card_type >= NV_50)
154 nvbo->valid_domains &= domain;
155
156 nvbo->gem = drm_gem_object_alloc(dev, nvbo->bo.mem.size);
157 if (!nvbo->gem) {
158 nouveau_bo_ref(NULL, pnvbo);
159 return -ENOMEM;
160 }
161
162 nvbo->bo.persistent_swap_storage = nvbo->gem->filp;
163 nvbo->gem->driver_private = nvbo;
164 return 0;
165}
166
167static int
168nouveau_gem_info(struct drm_file *file_priv, struct drm_gem_object *gem,
169 struct drm_nouveau_gem_info *rep)
170{
171 struct nouveau_fpriv *fpriv = nouveau_fpriv(file_priv);
172 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
173 struct nouveau_vma *vma;
174
175 if (nvbo->bo.mem.mem_type == TTM_PL_TT)
176 rep->domain = NOUVEAU_GEM_DOMAIN_GART;
177 else
178 rep->domain = NOUVEAU_GEM_DOMAIN_VRAM;
179
180 rep->offset = nvbo->bo.offset;
181 if (fpriv->vm) {
182 vma = nouveau_bo_vma_find(nvbo, fpriv->vm);
183 if (!vma)
184 return -EINVAL;
185
186 rep->offset = vma->offset;
187 }
188
189 rep->size = nvbo->bo.mem.num_pages << PAGE_SHIFT;
190 rep->map_handle = nvbo->bo.addr_space_offset;
191 rep->tile_mode = nvbo->tile_mode;
192 rep->tile_flags = nvbo->tile_flags;
193 return 0;
194}
195
196int
197nouveau_gem_ioctl_new(struct drm_device *dev, void *data,
198 struct drm_file *file_priv)
199{
200 struct drm_nouveau_private *dev_priv = dev->dev_private;
201 struct drm_nouveau_gem_new *req = data;
202 struct nouveau_bo *nvbo = NULL;
203 int ret = 0;
204
205 if (unlikely(dev_priv->ttm.bdev.dev_mapping == NULL))
206 dev_priv->ttm.bdev.dev_mapping = dev_priv->dev->dev_mapping;
207
208 if (!dev_priv->engine.vram.flags_valid(dev, req->info.tile_flags)) {
209 NV_ERROR(dev, "bad page flags: 0x%08x\n", req->info.tile_flags);
210 return -EINVAL;
211 }
212
213 ret = nouveau_gem_new(dev, req->info.size, req->align,
214 req->info.domain, req->info.tile_mode,
215 req->info.tile_flags, &nvbo);
216 if (ret)
217 return ret;
218
219 ret = drm_gem_handle_create(file_priv, nvbo->gem, &req->info.handle);
220 if (ret == 0) {
221 ret = nouveau_gem_info(file_priv, nvbo->gem, &req->info);
222 if (ret)
223 drm_gem_handle_delete(file_priv, req->info.handle);
224 }
225
226 /* drop reference from allocate - handle holds it now */
227 drm_gem_object_unreference_unlocked(nvbo->gem);
228 return ret;
229}
230
231static int
232nouveau_gem_set_domain(struct drm_gem_object *gem, uint32_t read_domains,
233 uint32_t write_domains, uint32_t valid_domains)
234{
235 struct nouveau_bo *nvbo = gem->driver_private;
236 struct ttm_buffer_object *bo = &nvbo->bo;
237 uint32_t domains = valid_domains & nvbo->valid_domains &
238 (write_domains ? write_domains : read_domains);
239 uint32_t pref_flags = 0, valid_flags = 0;
240
241 if (!domains)
242 return -EINVAL;
243
244 if (valid_domains & NOUVEAU_GEM_DOMAIN_VRAM)
245 valid_flags |= TTM_PL_FLAG_VRAM;
246
247 if (valid_domains & NOUVEAU_GEM_DOMAIN_GART)
248 valid_flags |= TTM_PL_FLAG_TT;
249
250 if ((domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
251 bo->mem.mem_type == TTM_PL_VRAM)
252 pref_flags |= TTM_PL_FLAG_VRAM;
253
254 else if ((domains & NOUVEAU_GEM_DOMAIN_GART) &&
255 bo->mem.mem_type == TTM_PL_TT)
256 pref_flags |= TTM_PL_FLAG_TT;
257
258 else if (domains & NOUVEAU_GEM_DOMAIN_VRAM)
259 pref_flags |= TTM_PL_FLAG_VRAM;
260
261 else
262 pref_flags |= TTM_PL_FLAG_TT;
263
264 nouveau_bo_placement_set(nvbo, pref_flags, valid_flags);
265
266 return 0;
267}
268
269struct validate_op {
270 struct list_head vram_list;
271 struct list_head gart_list;
272 struct list_head both_list;
273};
274
275static void
276validate_fini_list(struct list_head *list, struct nouveau_fence *fence)
277{
278 struct list_head *entry, *tmp;
279 struct nouveau_bo *nvbo;
280
281 list_for_each_safe(entry, tmp, list) {
282 nvbo = list_entry(entry, struct nouveau_bo, entry);
283
284 nouveau_bo_fence(nvbo, fence);
285
286 if (unlikely(nvbo->validate_mapped)) {
287 ttm_bo_kunmap(&nvbo->kmap);
288 nvbo->validate_mapped = false;
289 }
290
291 list_del(&nvbo->entry);
292 nvbo->reserved_by = NULL;
293 ttm_bo_unreserve(&nvbo->bo);
294 drm_gem_object_unreference_unlocked(nvbo->gem);
295 }
296}
297
298static void
299validate_fini(struct validate_op *op, struct nouveau_fence* fence)
300{
301 validate_fini_list(&op->vram_list, fence);
302 validate_fini_list(&op->gart_list, fence);
303 validate_fini_list(&op->both_list, fence);
304}
305
306static int
307validate_init(struct nouveau_channel *chan, struct drm_file *file_priv,
308 struct drm_nouveau_gem_pushbuf_bo *pbbo,
309 int nr_buffers, struct validate_op *op)
310{
311 struct drm_device *dev = chan->dev;
312 struct drm_nouveau_private *dev_priv = dev->dev_private;
313 uint32_t sequence;
314 int trycnt = 0;
315 int ret, i;
316
317 sequence = atomic_add_return(1, &dev_priv->ttm.validate_sequence);
318retry:
319 if (++trycnt > 100000) {
320 NV_ERROR(dev, "%s failed and gave up.\n", __func__);
321 return -EINVAL;
322 }
323
324 for (i = 0; i < nr_buffers; i++) {
325 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[i];
326 struct drm_gem_object *gem;
327 struct nouveau_bo *nvbo;
328
329 gem = drm_gem_object_lookup(dev, file_priv, b->handle);
330 if (!gem) {
331 NV_ERROR(dev, "Unknown handle 0x%08x\n", b->handle);
332 validate_fini(op, NULL);
333 return -ENOENT;
334 }
335 nvbo = gem->driver_private;
336
337 if (nvbo->reserved_by && nvbo->reserved_by == file_priv) {
338 NV_ERROR(dev, "multiple instances of buffer %d on "
339 "validation list\n", b->handle);
340 validate_fini(op, NULL);
341 return -EINVAL;
342 }
343
344 ret = ttm_bo_reserve(&nvbo->bo, true, false, true, sequence);
345 if (ret) {
346 validate_fini(op, NULL);
347 if (unlikely(ret == -EAGAIN))
348 ret = ttm_bo_wait_unreserved(&nvbo->bo, true);
349 drm_gem_object_unreference_unlocked(gem);
350 if (unlikely(ret)) {
351 if (ret != -ERESTARTSYS)
352 NV_ERROR(dev, "fail reserve\n");
353 return ret;
354 }
355 goto retry;
356 }
357
358 b->user_priv = (uint64_t)(unsigned long)nvbo;
359 nvbo->reserved_by = file_priv;
360 nvbo->pbbo_index = i;
361 if ((b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
362 (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART))
363 list_add_tail(&nvbo->entry, &op->both_list);
364 else
365 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM)
366 list_add_tail(&nvbo->entry, &op->vram_list);
367 else
368 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART)
369 list_add_tail(&nvbo->entry, &op->gart_list);
370 else {
371 NV_ERROR(dev, "invalid valid domains: 0x%08x\n",
372 b->valid_domains);
373 list_add_tail(&nvbo->entry, &op->both_list);
374 validate_fini(op, NULL);
375 return -EINVAL;
376 }
377 }
378
379 return 0;
380}
381
382static int
383validate_list(struct nouveau_channel *chan, struct list_head *list,
384 struct drm_nouveau_gem_pushbuf_bo *pbbo, uint64_t user_pbbo_ptr)
385{
386 struct drm_nouveau_private *dev_priv = chan->dev->dev_private;
387 struct drm_nouveau_gem_pushbuf_bo __user *upbbo =
388 (void __force __user *)(uintptr_t)user_pbbo_ptr;
389 struct drm_device *dev = chan->dev;
390 struct nouveau_bo *nvbo;
391 int ret, relocs = 0;
392
393 list_for_each_entry(nvbo, list, entry) {
394 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[nvbo->pbbo_index];
395
396 ret = nouveau_fence_sync(nvbo->bo.sync_obj, chan);
397 if (unlikely(ret)) {
398 NV_ERROR(dev, "fail pre-validate sync\n");
399 return ret;
400 }
401
402 ret = nouveau_gem_set_domain(nvbo->gem, b->read_domains,
403 b->write_domains,
404 b->valid_domains);
405 if (unlikely(ret)) {
406 NV_ERROR(dev, "fail set_domain\n");
407 return ret;
408 }
409
410 nvbo->channel = (b->read_domains & (1 << 31)) ? NULL : chan;
411 ret = nouveau_bo_validate(nvbo, true, false, false);
412 nvbo->channel = NULL;
413 if (unlikely(ret)) {
414 if (ret != -ERESTARTSYS)
415 NV_ERROR(dev, "fail ttm_validate\n");
416 return ret;
417 }
418
419 ret = nouveau_fence_sync(nvbo->bo.sync_obj, chan);
420 if (unlikely(ret)) {
421 NV_ERROR(dev, "fail post-validate sync\n");
422 return ret;
423 }
424
425 if (dev_priv->card_type < NV_50) {
426 if (nvbo->bo.offset == b->presumed.offset &&
427 ((nvbo->bo.mem.mem_type == TTM_PL_VRAM &&
428 b->presumed.domain & NOUVEAU_GEM_DOMAIN_VRAM) ||
429 (nvbo->bo.mem.mem_type == TTM_PL_TT &&
430 b->presumed.domain & NOUVEAU_GEM_DOMAIN_GART)))
431 continue;
432
433 if (nvbo->bo.mem.mem_type == TTM_PL_TT)
434 b->presumed.domain = NOUVEAU_GEM_DOMAIN_GART;
435 else
436 b->presumed.domain = NOUVEAU_GEM_DOMAIN_VRAM;
437 b->presumed.offset = nvbo->bo.offset;
438 b->presumed.valid = 0;
439 relocs++;
440
441 if (DRM_COPY_TO_USER(&upbbo[nvbo->pbbo_index].presumed,
442 &b->presumed, sizeof(b->presumed)))
443 return -EFAULT;
444 }
445 }
446
447 return relocs;
448}
449
450static int
451nouveau_gem_pushbuf_validate(struct nouveau_channel *chan,
452 struct drm_file *file_priv,
453 struct drm_nouveau_gem_pushbuf_bo *pbbo,
454 uint64_t user_buffers, int nr_buffers,
455 struct validate_op *op, int *apply_relocs)
456{
457 struct drm_device *dev = chan->dev;
458 int ret, relocs = 0;
459
460 INIT_LIST_HEAD(&op->vram_list);
461 INIT_LIST_HEAD(&op->gart_list);
462 INIT_LIST_HEAD(&op->both_list);
463
464 if (nr_buffers == 0)
465 return 0;
466
467 ret = validate_init(chan, file_priv, pbbo, nr_buffers, op);
468 if (unlikely(ret)) {
469 if (ret != -ERESTARTSYS)
470 NV_ERROR(dev, "validate_init\n");
471 return ret;
472 }
473
474 ret = validate_list(chan, &op->vram_list, pbbo, user_buffers);
475 if (unlikely(ret < 0)) {
476 if (ret != -ERESTARTSYS)
477 NV_ERROR(dev, "validate vram_list\n");
478 validate_fini(op, NULL);
479 return ret;
480 }
481 relocs += ret;
482
483 ret = validate_list(chan, &op->gart_list, pbbo, user_buffers);
484 if (unlikely(ret < 0)) {
485 if (ret != -ERESTARTSYS)
486 NV_ERROR(dev, "validate gart_list\n");
487 validate_fini(op, NULL);
488 return ret;
489 }
490 relocs += ret;
491
492 ret = validate_list(chan, &op->both_list, pbbo, user_buffers);
493 if (unlikely(ret < 0)) {
494 if (ret != -ERESTARTSYS)
495 NV_ERROR(dev, "validate both_list\n");
496 validate_fini(op, NULL);
497 return ret;
498 }
499 relocs += ret;
500
501 *apply_relocs = relocs;
502 return 0;
503}
504
505static inline void *
506u_memcpya(uint64_t user, unsigned nmemb, unsigned size)
507{
508 void *mem;
509 void __user *userptr = (void __force __user *)(uintptr_t)user;
510
511 mem = kmalloc(nmemb * size, GFP_KERNEL);
512 if (!mem)
513 return ERR_PTR(-ENOMEM);
514
515 if (DRM_COPY_FROM_USER(mem, userptr, nmemb * size)) {
516 kfree(mem);
517 return ERR_PTR(-EFAULT);
518 }
519
520 return mem;
521}
522
523static int
524nouveau_gem_pushbuf_reloc_apply(struct drm_device *dev,
525 struct drm_nouveau_gem_pushbuf *req,
526 struct drm_nouveau_gem_pushbuf_bo *bo)
527{
528 struct drm_nouveau_gem_pushbuf_reloc *reloc = NULL;
529 int ret = 0;
530 unsigned i;
531
532 reloc = u_memcpya(req->relocs, req->nr_relocs, sizeof(*reloc));
533 if (IS_ERR(reloc))
534 return PTR_ERR(reloc);
535
536 for (i = 0; i < req->nr_relocs; i++) {
537 struct drm_nouveau_gem_pushbuf_reloc *r = &reloc[i];
538 struct drm_nouveau_gem_pushbuf_bo *b;
539 struct nouveau_bo *nvbo;
540 uint32_t data;
541
542 if (unlikely(r->bo_index > req->nr_buffers)) {
543 NV_ERROR(dev, "reloc bo index invalid\n");
544 ret = -EINVAL;
545 break;
546 }
547
548 b = &bo[r->bo_index];
549 if (b->presumed.valid)
550 continue;
551
552 if (unlikely(r->reloc_bo_index > req->nr_buffers)) {
553 NV_ERROR(dev, "reloc container bo index invalid\n");
554 ret = -EINVAL;
555 break;
556 }
557 nvbo = (void *)(unsigned long)bo[r->reloc_bo_index].user_priv;
558
559 if (unlikely(r->reloc_bo_offset + 4 >
560 nvbo->bo.mem.num_pages << PAGE_SHIFT)) {
561 NV_ERROR(dev, "reloc outside of bo\n");
562 ret = -EINVAL;
563 break;
564 }
565
566 if (!nvbo->kmap.virtual) {
567 ret = ttm_bo_kmap(&nvbo->bo, 0, nvbo->bo.mem.num_pages,
568 &nvbo->kmap);
569 if (ret) {
570 NV_ERROR(dev, "failed kmap for reloc\n");
571 break;
572 }
573 nvbo->validate_mapped = true;
574 }
575
576 if (r->flags & NOUVEAU_GEM_RELOC_LOW)
577 data = b->presumed.offset + r->data;
578 else
579 if (r->flags & NOUVEAU_GEM_RELOC_HIGH)
580 data = (b->presumed.offset + r->data) >> 32;
581 else
582 data = r->data;
583
584 if (r->flags & NOUVEAU_GEM_RELOC_OR) {
585 if (b->presumed.domain == NOUVEAU_GEM_DOMAIN_GART)
586 data |= r->tor;
587 else
588 data |= r->vor;
589 }
590
591 spin_lock(&nvbo->bo.bdev->fence_lock);
592 ret = ttm_bo_wait(&nvbo->bo, false, false, false);
593 spin_unlock(&nvbo->bo.bdev->fence_lock);
594 if (ret) {
595 NV_ERROR(dev, "reloc wait_idle failed: %d\n", ret);
596 break;
597 }
598
599 nouveau_bo_wr32(nvbo, r->reloc_bo_offset >> 2, data);
600 }
601
602 kfree(reloc);
603 return ret;
604}
605
606int
607nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data,
608 struct drm_file *file_priv)
609{
610 struct drm_nouveau_private *dev_priv = dev->dev_private;
611 struct drm_nouveau_gem_pushbuf *req = data;
612 struct drm_nouveau_gem_pushbuf_push *push;
613 struct drm_nouveau_gem_pushbuf_bo *bo;
614 struct nouveau_channel *chan;
615 struct validate_op op;
616 struct nouveau_fence *fence = NULL;
617 int i, j, ret = 0, do_reloc = 0;
618
619 chan = nouveau_channel_get(file_priv, req->channel);
620 if (IS_ERR(chan))
621 return PTR_ERR(chan);
622
623 req->vram_available = dev_priv->fb_aper_free;
624 req->gart_available = dev_priv->gart_info.aper_free;
625 if (unlikely(req->nr_push == 0))
626 goto out_next;
627
628 if (unlikely(req->nr_push > NOUVEAU_GEM_MAX_PUSH)) {
629 NV_ERROR(dev, "pushbuf push count exceeds limit: %d max %d\n",
630 req->nr_push, NOUVEAU_GEM_MAX_PUSH);
631 nouveau_channel_put(&chan);
632 return -EINVAL;
633 }
634
635 if (unlikely(req->nr_buffers > NOUVEAU_GEM_MAX_BUFFERS)) {
636 NV_ERROR(dev, "pushbuf bo count exceeds limit: %d max %d\n",
637 req->nr_buffers, NOUVEAU_GEM_MAX_BUFFERS);
638 nouveau_channel_put(&chan);
639 return -EINVAL;
640 }
641
642 if (unlikely(req->nr_relocs > NOUVEAU_GEM_MAX_RELOCS)) {
643 NV_ERROR(dev, "pushbuf reloc count exceeds limit: %d max %d\n",
644 req->nr_relocs, NOUVEAU_GEM_MAX_RELOCS);
645 nouveau_channel_put(&chan);
646 return -EINVAL;
647 }
648
649 push = u_memcpya(req->push, req->nr_push, sizeof(*push));
650 if (IS_ERR(push)) {
651 nouveau_channel_put(&chan);
652 return PTR_ERR(push);
653 }
654
655 bo = u_memcpya(req->buffers, req->nr_buffers, sizeof(*bo));
656 if (IS_ERR(bo)) {
657 kfree(push);
658 nouveau_channel_put(&chan);
659 return PTR_ERR(bo);
660 }
661
662 /* Mark push buffers as being used on PFIFO, the validation code
663 * will then make sure that if the pushbuf bo moves, that they
664 * happen on the kernel channel, which will in turn cause a sync
665 * to happen before we try and submit the push buffer.
666 */
667 for (i = 0; i < req->nr_push; i++) {
668 if (push[i].bo_index >= req->nr_buffers) {
669 NV_ERROR(dev, "push %d buffer not in list\n", i);
670 ret = -EINVAL;
671 goto out_prevalid;
672 }
673
674 bo[push[i].bo_index].read_domains |= (1 << 31);
675 }
676
677 /* Validate buffer list */
678 ret = nouveau_gem_pushbuf_validate(chan, file_priv, bo, req->buffers,
679 req->nr_buffers, &op, &do_reloc);
680 if (ret) {
681 if (ret != -ERESTARTSYS)
682 NV_ERROR(dev, "validate: %d\n", ret);
683 goto out_prevalid;
684 }
685
686 /* Apply any relocations that are required */
687 if (do_reloc) {
688 ret = nouveau_gem_pushbuf_reloc_apply(dev, req, bo);
689 if (ret) {
690 NV_ERROR(dev, "reloc apply: %d\n", ret);
691 goto out;
692 }
693 }
694
695 if (chan->dma.ib_max) {
696 ret = nouveau_dma_wait(chan, req->nr_push + 1, 6);
697 if (ret) {
698 NV_INFO(dev, "nv50cal_space: %d\n", ret);
699 goto out;
700 }
701
702 for (i = 0; i < req->nr_push; i++) {
703 struct nouveau_bo *nvbo = (void *)(unsigned long)
704 bo[push[i].bo_index].user_priv;
705
706 nv50_dma_push(chan, nvbo, push[i].offset,
707 push[i].length);
708 }
709 } else
710 if (dev_priv->chipset >= 0x25) {
711 ret = RING_SPACE(chan, req->nr_push * 2);
712 if (ret) {
713 NV_ERROR(dev, "cal_space: %d\n", ret);
714 goto out;
715 }
716
717 for (i = 0; i < req->nr_push; i++) {
718 struct nouveau_bo *nvbo = (void *)(unsigned long)
719 bo[push[i].bo_index].user_priv;
720 struct drm_mm_node *mem = nvbo->bo.mem.mm_node;
721
722 OUT_RING(chan, ((mem->start << PAGE_SHIFT) +
723 push[i].offset) | 2);
724 OUT_RING(chan, 0);
725 }
726 } else {
727 ret = RING_SPACE(chan, req->nr_push * (2 + NOUVEAU_DMA_SKIPS));
728 if (ret) {
729 NV_ERROR(dev, "jmp_space: %d\n", ret);
730 goto out;
731 }
732
733 for (i = 0; i < req->nr_push; i++) {
734 struct nouveau_bo *nvbo = (void *)(unsigned long)
735 bo[push[i].bo_index].user_priv;
736 struct drm_mm_node *mem = nvbo->bo.mem.mm_node;
737 uint32_t cmd;
738
739 cmd = chan->pushbuf_base + ((chan->dma.cur + 2) << 2);
740 cmd |= 0x20000000;
741 if (unlikely(cmd != req->suffix0)) {
742 if (!nvbo->kmap.virtual) {
743 ret = ttm_bo_kmap(&nvbo->bo, 0,
744 nvbo->bo.mem.
745 num_pages,
746 &nvbo->kmap);
747 if (ret) {
748 WIND_RING(chan);
749 goto out;
750 }
751 nvbo->validate_mapped = true;
752 }
753
754 nouveau_bo_wr32(nvbo, (push[i].offset +
755 push[i].length - 8) / 4, cmd);
756 }
757
758 OUT_RING(chan, ((mem->start << PAGE_SHIFT) +
759 push[i].offset) | 0x20000000);
760 OUT_RING(chan, 0);
761 for (j = 0; j < NOUVEAU_DMA_SKIPS; j++)
762 OUT_RING(chan, 0);
763 }
764 }
765
766 ret = nouveau_fence_new(chan, &fence, true);
767 if (ret) {
768 NV_ERROR(dev, "error fencing pushbuf: %d\n", ret);
769 WIND_RING(chan);
770 goto out;
771 }
772
773out:
774 validate_fini(&op, fence);
775 nouveau_fence_unref(&fence);
776
777out_prevalid:
778 kfree(bo);
779 kfree(push);
780
781out_next:
782 if (chan->dma.ib_max) {
783 req->suffix0 = 0x00000000;
784 req->suffix1 = 0x00000000;
785 } else
786 if (dev_priv->chipset >= 0x25) {
787 req->suffix0 = 0x00020000;
788 req->suffix1 = 0x00000000;
789 } else {
790 req->suffix0 = 0x20000000 |
791 (chan->pushbuf_base + ((chan->dma.cur + 2) << 2));
792 req->suffix1 = 0x00000000;
793 }
794
795 nouveau_channel_put(&chan);
796 return ret;
797}
798
799static inline uint32_t
800domain_to_ttm(struct nouveau_bo *nvbo, uint32_t domain)
801{
802 uint32_t flags = 0;
803
804 if (domain & NOUVEAU_GEM_DOMAIN_VRAM)
805 flags |= TTM_PL_FLAG_VRAM;
806 if (domain & NOUVEAU_GEM_DOMAIN_GART)
807 flags |= TTM_PL_FLAG_TT;
808
809 return flags;
810}
811
812int
813nouveau_gem_ioctl_cpu_prep(struct drm_device *dev, void *data,
814 struct drm_file *file_priv)
815{
816 struct drm_nouveau_gem_cpu_prep *req = data;
817 struct drm_gem_object *gem;
818 struct nouveau_bo *nvbo;
819 bool no_wait = !!(req->flags & NOUVEAU_GEM_CPU_PREP_NOWAIT);
820 int ret = -EINVAL;
821
822 gem = drm_gem_object_lookup(dev, file_priv, req->handle);
823 if (!gem)
824 return -ENOENT;
825 nvbo = nouveau_gem_object(gem);
826
827 spin_lock(&nvbo->bo.bdev->fence_lock);
828 ret = ttm_bo_wait(&nvbo->bo, true, true, no_wait);
829 spin_unlock(&nvbo->bo.bdev->fence_lock);
830 drm_gem_object_unreference_unlocked(gem);
831 return ret;
832}
833
834int
835nouveau_gem_ioctl_cpu_fini(struct drm_device *dev, void *data,
836 struct drm_file *file_priv)
837{
838 return 0;
839}
840
841int
842nouveau_gem_ioctl_info(struct drm_device *dev, void *data,
843 struct drm_file *file_priv)
844{
845 struct drm_nouveau_gem_info *req = data;
846 struct drm_gem_object *gem;
847 int ret;
848
849 gem = drm_gem_object_lookup(dev, file_priv, req->handle);
850 if (!gem)
851 return -ENOENT;
852
853 ret = nouveau_gem_info(file_priv, gem, req);
854 drm_gem_object_unreference_unlocked(gem);
855 return ret;
856}
857
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, 1);
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, nvbo->bo.resource->num_pages,
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 nvbo->bo.resource->
872 num_pages,
873 &nvbo->kmap);
874 if (ret) {
875 WIND_RING(chan);
876 goto out;
877 }
878 nvbo->validate_mapped = true;
879 }
880
881 nouveau_bo_wr32(nvbo, (push[i].offset +
882 push[i].length - 8) / 4, cmd);
883 }
884
885 PUSH_JUMP(chan->chan.push, nvbo->offset + push[i].offset);
886 PUSH_DATA(chan->chan.push, 0);
887 for (j = 0; j < NOUVEAU_DMA_SKIPS; j++)
888 PUSH_DATA(chan->chan.push, 0);
889 }
890 }
891
892 ret = nouveau_fence_new(chan, false, &fence);
893 if (ret) {
894 NV_PRINTK(err, cli, "error fencing pushbuf: %d\n", ret);
895 WIND_RING(chan);
896 goto out;
897 }
898
899 if (sync) {
900 if (!(ret = nouveau_fence_wait(fence, false, false))) {
901 if ((ret = dma_fence_get_status(&fence->base)) == 1)
902 ret = 0;
903 }
904 }
905
906out:
907 validate_fini(&op, chan, fence, bo);
908 nouveau_fence_unref(&fence);
909
910 if (do_reloc) {
911 struct drm_nouveau_gem_pushbuf_bo __user *upbbo =
912 u64_to_user_ptr(req->buffers);
913
914 for (i = 0; i < req->nr_buffers; i++) {
915 if (bo[i].presumed.valid)
916 continue;
917
918 if (copy_to_user(&upbbo[i].presumed, &bo[i].presumed,
919 sizeof(bo[i].presumed))) {
920 ret = -EFAULT;
921 break;
922 }
923 }
924 }
925out_prevalid:
926 if (!IS_ERR(reloc))
927 u_free(reloc);
928 u_free(bo);
929 u_free(push);
930
931out_next:
932 if (chan->dma.ib_max) {
933 req->suffix0 = 0x00000000;
934 req->suffix1 = 0x00000000;
935 } else
936 if (drm->client.device.info.chipset >= 0x25) {
937 req->suffix0 = 0x00020000;
938 req->suffix1 = 0x00000000;
939 } else {
940 req->suffix0 = 0x20000000 |
941 (chan->push.addr + ((chan->dma.cur + 2) << 2));
942 req->suffix1 = 0x00000000;
943 }
944
945 return nouveau_abi16_put(abi16, ret);
946}
947
948int
949nouveau_gem_ioctl_cpu_prep(struct drm_device *dev, void *data,
950 struct drm_file *file_priv)
951{
952 struct drm_nouveau_gem_cpu_prep *req = data;
953 struct drm_gem_object *gem;
954 struct nouveau_bo *nvbo;
955 bool no_wait = !!(req->flags & NOUVEAU_GEM_CPU_PREP_NOWAIT);
956 bool write = !!(req->flags & NOUVEAU_GEM_CPU_PREP_WRITE);
957 long lret;
958 int ret;
959
960 gem = drm_gem_object_lookup(file_priv, req->handle);
961 if (!gem)
962 return -ENOENT;
963 nvbo = nouveau_gem_object(gem);
964
965 lret = dma_resv_wait_timeout(nvbo->bo.base.resv, 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