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PM / sleep: Asynchronous threads for suspend_noirq
[linux/fpc-iii.git] / drivers / gpu / drm / nouveau / nouveau_gem.c
blob27c3fd89e8ceb657595d188a8a3ff16cadde0edc
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 <subdev/fb.h>
28
29 #include "nouveau_drm.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
37 void
38 nouveau_gem_object_del(struct drm_gem_object *gem)
39 {
40 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
41 struct ttm_buffer_object *bo = &nvbo->bo;
42
43 if (gem->import_attach)
44 drm_prime_gem_destroy(gem, nvbo->bo.sg);
45
46 drm_gem_object_release(gem);
47
48 /* reset filp so nouveau_bo_del_ttm() can test for it */
49 gem->filp = NULL;
50 ttm_bo_unref(&bo);
51 }
52
53 int
54 nouveau_gem_object_open(struct drm_gem_object *gem, struct drm_file *file_priv)
55 {
56 struct nouveau_cli *cli = nouveau_cli(file_priv);
57 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
58 struct nouveau_vma *vma;
59 int ret;
60
61 if (!cli->base.vm)
62 return 0;
63
64 ret = ttm_bo_reserve(&nvbo->bo, false, false, false, 0);
65 if (ret)
66 return ret;
67
68 vma = nouveau_bo_vma_find(nvbo, cli->base.vm);
69 if (!vma) {
70 vma = kzalloc(sizeof(*vma), GFP_KERNEL);
71 if (!vma) {
72 ret = -ENOMEM;
73 goto out;
74 }
75
76 ret = nouveau_bo_vma_add(nvbo, cli->base.vm, vma);
77 if (ret) {
78 kfree(vma);
79 goto out;
80 }
81 } else {
82 vma->refcount++;
83 }
84
85 out:
86 ttm_bo_unreserve(&nvbo->bo);
87 return ret;
88 }
89
90 static void
91 nouveau_gem_object_delete(void *data)
92 {
93 struct nouveau_vma *vma = data;
94 nouveau_vm_unmap(vma);
95 nouveau_vm_put(vma);
96 kfree(vma);
97 }
98
99 static void
100 nouveau_gem_object_unmap(struct nouveau_bo *nvbo, struct nouveau_vma *vma)
101 {
102 const bool mapped = nvbo->bo.mem.mem_type != TTM_PL_SYSTEM;
103 struct nouveau_fence *fence = NULL;
104
105 list_del(&vma->head);
106
107 if (mapped) {
108 spin_lock(&nvbo->bo.bdev->fence_lock);
109 fence = nouveau_fence_ref(nvbo->bo.sync_obj);
110 spin_unlock(&nvbo->bo.bdev->fence_lock);
111 }
112
113 if (fence) {
114 nouveau_fence_work(fence, nouveau_gem_object_delete, vma);
115 } else {
116 if (mapped)
117 nouveau_vm_unmap(vma);
118 nouveau_vm_put(vma);
119 kfree(vma);
120 }
121 nouveau_fence_unref(&fence);
122 }
123
124 void
125 nouveau_gem_object_close(struct drm_gem_object *gem, struct drm_file *file_priv)
126 {
127 struct nouveau_cli *cli = nouveau_cli(file_priv);
128 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
129 struct nouveau_vma *vma;
130 int ret;
131
132 if (!cli->base.vm)
133 return;
134
135 ret = ttm_bo_reserve(&nvbo->bo, false, false, false, 0);
136 if (ret)
137 return;
138
139 vma = nouveau_bo_vma_find(nvbo, cli->base.vm);
140 if (vma) {
141 if (--vma->refcount == 0)
142 nouveau_gem_object_unmap(nvbo, vma);
143 }
144 ttm_bo_unreserve(&nvbo->bo);
145 }
146
147 int
148 nouveau_gem_new(struct drm_device *dev, int size, int align, uint32_t domain,
149 uint32_t tile_mode, uint32_t tile_flags,
150 struct nouveau_bo **pnvbo)
151 {
152 struct nouveau_drm *drm = nouveau_drm(dev);
153 struct nouveau_bo *nvbo;
154 u32 flags = 0;
155 int ret;
156
157 if (domain & NOUVEAU_GEM_DOMAIN_VRAM)
158 flags |= TTM_PL_FLAG_VRAM;
159 if (domain & NOUVEAU_GEM_DOMAIN_GART)
160 flags |= TTM_PL_FLAG_TT;
161 if (!flags || domain & NOUVEAU_GEM_DOMAIN_CPU)
162 flags |= TTM_PL_FLAG_SYSTEM;
163
164 ret = nouveau_bo_new(dev, size, align, flags, tile_mode,
165 tile_flags, NULL, pnvbo);
166 if (ret)
167 return ret;
168 nvbo = *pnvbo;
169
170 /* we restrict allowed domains on nv50+ to only the types
171 * that were requested at creation time. not possibly on
172 * earlier chips without busting the ABI.
173 */
174 nvbo->valid_domains = NOUVEAU_GEM_DOMAIN_VRAM |
175 NOUVEAU_GEM_DOMAIN_GART;
176 if (nv_device(drm->device)->card_type >= NV_50)
177 nvbo->valid_domains &= domain;
178
179 /* Initialize the embedded gem-object. We return a single gem-reference
180 * to the caller, instead of a normal nouveau_bo ttm reference. */
181 ret = drm_gem_object_init(dev, &nvbo->gem, nvbo->bo.mem.size);
182 if (ret) {
183 nouveau_bo_ref(NULL, pnvbo);
184 return -ENOMEM;
185 }
186
187 nvbo->bo.persistent_swap_storage = nvbo->gem.filp;
188 return 0;
189 }
190
191 static int
192 nouveau_gem_info(struct drm_file *file_priv, struct drm_gem_object *gem,
193 struct drm_nouveau_gem_info *rep)
194 {
195 struct nouveau_cli *cli = nouveau_cli(file_priv);
196 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
197 struct nouveau_vma *vma;
198
199 if (nvbo->bo.mem.mem_type == TTM_PL_TT)
200 rep->domain = NOUVEAU_GEM_DOMAIN_GART;
201 else
202 rep->domain = NOUVEAU_GEM_DOMAIN_VRAM;
203
204 rep->offset = nvbo->bo.offset;
205 if (cli->base.vm) {
206 vma = nouveau_bo_vma_find(nvbo, cli->base.vm);
207 if (!vma)
208 return -EINVAL;
209
210 rep->offset = vma->offset;
211 }
212
213 rep->size = nvbo->bo.mem.num_pages << PAGE_SHIFT;
214 rep->map_handle = drm_vma_node_offset_addr(&nvbo->bo.vma_node);
215 rep->tile_mode = nvbo->tile_mode;
216 rep->tile_flags = nvbo->tile_flags;
217 return 0;
218 }
219
220 int
221 nouveau_gem_ioctl_new(struct drm_device *dev, void *data,
222 struct drm_file *file_priv)
223 {
224 struct nouveau_drm *drm = nouveau_drm(dev);
225 struct nouveau_cli *cli = nouveau_cli(file_priv);
226 struct nouveau_fb *pfb = nouveau_fb(drm->device);
227 struct drm_nouveau_gem_new *req = data;
228 struct nouveau_bo *nvbo = NULL;
229 int ret = 0;
230
231 drm->ttm.bdev.dev_mapping = drm->dev->dev_mapping;
232
233 if (!pfb->memtype_valid(pfb, req->info.tile_flags)) {
234 NV_ERROR(cli, "bad page flags: 0x%08x\n", req->info.tile_flags);
235 return -EINVAL;
236 }
237
238 ret = nouveau_gem_new(dev, req->info.size, req->align,
239 req->info.domain, req->info.tile_mode,
240 req->info.tile_flags, &nvbo);
241 if (ret)
242 return ret;
243
244 ret = drm_gem_handle_create(file_priv, &nvbo->gem, &req->info.handle);
245 if (ret == 0) {
246 ret = nouveau_gem_info(file_priv, &nvbo->gem, &req->info);
247 if (ret)
248 drm_gem_handle_delete(file_priv, req->info.handle);
249 }
250
251 /* drop reference from allocate - handle holds it now */
252 drm_gem_object_unreference_unlocked(&nvbo->gem);
253 return ret;
254 }
255
256 static int
257 nouveau_gem_set_domain(struct drm_gem_object *gem, uint32_t read_domains,
258 uint32_t write_domains, uint32_t valid_domains)
259 {
260 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
261 struct ttm_buffer_object *bo = &nvbo->bo;
262 uint32_t domains = valid_domains & nvbo->valid_domains &
263 (write_domains ? write_domains : read_domains);
264 uint32_t pref_flags = 0, valid_flags = 0;
265
266 if (!domains)
267 return -EINVAL;
268
269 if (valid_domains & NOUVEAU_GEM_DOMAIN_VRAM)
270 valid_flags |= TTM_PL_FLAG_VRAM;
271
272 if (valid_domains & NOUVEAU_GEM_DOMAIN_GART)
273 valid_flags |= TTM_PL_FLAG_TT;
274
275 if ((domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
276 bo->mem.mem_type == TTM_PL_VRAM)
277 pref_flags |= TTM_PL_FLAG_VRAM;
278
279 else if ((domains & NOUVEAU_GEM_DOMAIN_GART) &&
280 bo->mem.mem_type == TTM_PL_TT)
281 pref_flags |= TTM_PL_FLAG_TT;
282
283 else if (domains & NOUVEAU_GEM_DOMAIN_VRAM)
284 pref_flags |= TTM_PL_FLAG_VRAM;
285
286 else
287 pref_flags |= TTM_PL_FLAG_TT;
288
289 nouveau_bo_placement_set(nvbo, pref_flags, valid_flags);
290
291 return 0;
292 }
293
294 struct validate_op {
295 struct list_head vram_list;
296 struct list_head gart_list;
297 struct list_head both_list;
298 struct ww_acquire_ctx ticket;
299 };
300
301 static void
302 validate_fini_list(struct list_head *list, struct nouveau_fence *fence,
303 struct ww_acquire_ctx *ticket)
304 {
305 struct list_head *entry, *tmp;
306 struct nouveau_bo *nvbo;
307
308 list_for_each_safe(entry, tmp, list) {
309 nvbo = list_entry(entry, struct nouveau_bo, entry);
310
311 if (likely(fence))
312 nouveau_bo_fence(nvbo, fence);
313
314 if (unlikely(nvbo->validate_mapped)) {
315 ttm_bo_kunmap(&nvbo->kmap);
316 nvbo->validate_mapped = false;
317 }
318
319 list_del(&nvbo->entry);
320 nvbo->reserved_by = NULL;
321 ttm_bo_unreserve_ticket(&nvbo->bo, ticket);
322 drm_gem_object_unreference_unlocked(&nvbo->gem);
323 }
324 }
325
326 static void
327 validate_fini_no_ticket(struct validate_op *op, struct nouveau_fence *fence)
328 {
329 validate_fini_list(&op->vram_list, fence, &op->ticket);
330 validate_fini_list(&op->gart_list, fence, &op->ticket);
331 validate_fini_list(&op->both_list, fence, &op->ticket);
332 }
333
334 static void
335 validate_fini(struct validate_op *op, struct nouveau_fence *fence)
336 {
337 validate_fini_no_ticket(op, fence);
338 ww_acquire_fini(&op->ticket);
339 }
340
341 static int
342 validate_init(struct nouveau_channel *chan, struct drm_file *file_priv,
343 struct drm_nouveau_gem_pushbuf_bo *pbbo,
344 int nr_buffers, struct validate_op *op)
345 {
346 struct nouveau_cli *cli = nouveau_cli(file_priv);
347 struct drm_device *dev = chan->drm->dev;
348 int trycnt = 0;
349 int ret, i;
350 struct nouveau_bo *res_bo = NULL;
351
352 ww_acquire_init(&op->ticket, &reservation_ww_class);
353 retry:
354 if (++trycnt > 100000) {
355 NV_ERROR(cli, "%s failed and gave up.\n", __func__);
356 return -EINVAL;
357 }
358
359 for (i = 0; i < nr_buffers; i++) {
360 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[i];
361 struct drm_gem_object *gem;
362 struct nouveau_bo *nvbo;
363
364 gem = drm_gem_object_lookup(dev, file_priv, b->handle);
365 if (!gem) {
366 NV_ERROR(cli, "Unknown handle 0x%08x\n", b->handle);
367 ww_acquire_done(&op->ticket);
368 validate_fini(op, NULL);
369 return -ENOENT;
370 }
371 nvbo = nouveau_gem_object(gem);
372 if (nvbo == res_bo) {
373 res_bo = NULL;
374 drm_gem_object_unreference_unlocked(gem);
375 continue;
376 }
377
378 if (nvbo->reserved_by && nvbo->reserved_by == file_priv) {
379 NV_ERROR(cli, "multiple instances of buffer %d on "
380 "validation list\n", b->handle);
381 drm_gem_object_unreference_unlocked(gem);
382 ww_acquire_done(&op->ticket);
383 validate_fini(op, NULL);
384 return -EINVAL;
385 }
386
387 ret = ttm_bo_reserve(&nvbo->bo, true, false, true, &op->ticket);
388 if (ret) {
389 validate_fini_no_ticket(op, NULL);
390 if (unlikely(ret == -EDEADLK)) {
391 ret = ttm_bo_reserve_slowpath(&nvbo->bo, true,
392 &op->ticket);
393 if (!ret)
394 res_bo = nvbo;
395 }
396 if (unlikely(ret)) {
397 ww_acquire_done(&op->ticket);
398 ww_acquire_fini(&op->ticket);
399 drm_gem_object_unreference_unlocked(gem);
400 if (ret != -ERESTARTSYS)
401 NV_ERROR(cli, "fail reserve\n");
402 return ret;
403 }
404 }
405
406 b->user_priv = (uint64_t)(unsigned long)nvbo;
407 nvbo->reserved_by = file_priv;
408 nvbo->pbbo_index = i;
409 if ((b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
410 (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART))
411 list_add_tail(&nvbo->entry, &op->both_list);
412 else
413 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM)
414 list_add_tail(&nvbo->entry, &op->vram_list);
415 else
416 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART)
417 list_add_tail(&nvbo->entry, &op->gart_list);
418 else {
419 NV_ERROR(cli, "invalid valid domains: 0x%08x\n",
420 b->valid_domains);
421 list_add_tail(&nvbo->entry, &op->both_list);
422 ww_acquire_done(&op->ticket);
423 validate_fini(op, NULL);
424 return -EINVAL;
425 }
426 if (nvbo == res_bo)
427 goto retry;
428 }
429
430 ww_acquire_done(&op->ticket);
431 return 0;
432 }
433
434 static int
435 validate_sync(struct nouveau_channel *chan, struct nouveau_bo *nvbo)
436 {
437 struct nouveau_fence *fence = NULL;
438 int ret = 0;
439
440 spin_lock(&nvbo->bo.bdev->fence_lock);
441 fence = nouveau_fence_ref(nvbo->bo.sync_obj);
442 spin_unlock(&nvbo->bo.bdev->fence_lock);
443
444 if (fence) {
445 ret = nouveau_fence_sync(fence, chan);
446 nouveau_fence_unref(&fence);
447 }
448
449 return ret;
450 }
451
452 static int
453 validate_list(struct nouveau_channel *chan, struct nouveau_cli *cli,
454 struct list_head *list, struct drm_nouveau_gem_pushbuf_bo *pbbo,
455 uint64_t user_pbbo_ptr)
456 {
457 struct nouveau_drm *drm = chan->drm;
458 struct drm_nouveau_gem_pushbuf_bo __user *upbbo =
459 (void __force __user *)(uintptr_t)user_pbbo_ptr;
460 struct nouveau_bo *nvbo;
461 int ret, relocs = 0;
462
463 list_for_each_entry(nvbo, list, entry) {
464 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[nvbo->pbbo_index];
465
466 ret = nouveau_gem_set_domain(&nvbo->gem, b->read_domains,
467 b->write_domains,
468 b->valid_domains);
469 if (unlikely(ret)) {
470 NV_ERROR(cli, "fail set_domain\n");
471 return ret;
472 }
473
474 ret = nouveau_bo_validate(nvbo, true, false);
475 if (unlikely(ret)) {
476 if (ret != -ERESTARTSYS)
477 NV_ERROR(cli, "fail ttm_validate\n");
478 return ret;
479 }
480
481 ret = validate_sync(chan, nvbo);
482 if (unlikely(ret)) {
483 NV_ERROR(cli, "fail post-validate sync\n");
484 return ret;
485 }
486
487 if (nv_device(drm->device)->card_type < NV_50) {
488 if (nvbo->bo.offset == b->presumed.offset &&
489 ((nvbo->bo.mem.mem_type == TTM_PL_VRAM &&
490 b->presumed.domain & NOUVEAU_GEM_DOMAIN_VRAM) ||
491 (nvbo->bo.mem.mem_type == TTM_PL_TT &&
492 b->presumed.domain & NOUVEAU_GEM_DOMAIN_GART)))
493 continue;
494
495 if (nvbo->bo.mem.mem_type == TTM_PL_TT)
496 b->presumed.domain = NOUVEAU_GEM_DOMAIN_GART;
497 else
498 b->presumed.domain = NOUVEAU_GEM_DOMAIN_VRAM;
499 b->presumed.offset = nvbo->bo.offset;
500 b->presumed.valid = 0;
501 relocs++;
502
503 if (copy_to_user(&upbbo[nvbo->pbbo_index].presumed,
504 &b->presumed, sizeof(b->presumed)))
505 return -EFAULT;
506 }
507 }
508
509 return relocs;
510 }
511
512 static int
513 nouveau_gem_pushbuf_validate(struct nouveau_channel *chan,
514 struct drm_file *file_priv,
515 struct drm_nouveau_gem_pushbuf_bo *pbbo,
516 uint64_t user_buffers, int nr_buffers,
517 struct validate_op *op, int *apply_relocs)
518 {
519 struct nouveau_cli *cli = nouveau_cli(file_priv);
520 int ret, relocs = 0;
521
522 INIT_LIST_HEAD(&op->vram_list);
523 INIT_LIST_HEAD(&op->gart_list);
524 INIT_LIST_HEAD(&op->both_list);
525
526 if (nr_buffers == 0)
527 return 0;
528
529 ret = validate_init(chan, file_priv, pbbo, nr_buffers, op);
530 if (unlikely(ret)) {
531 if (ret != -ERESTARTSYS)
532 NV_ERROR(cli, "validate_init\n");
533 return ret;
534 }
535
536 ret = validate_list(chan, cli, &op->vram_list, pbbo, user_buffers);
537 if (unlikely(ret < 0)) {
538 if (ret != -ERESTARTSYS)
539 NV_ERROR(cli, "validate vram_list\n");
540 validate_fini(op, NULL);
541 return ret;
542 }
543 relocs += ret;
544
545 ret = validate_list(chan, cli, &op->gart_list, pbbo, user_buffers);
546 if (unlikely(ret < 0)) {
547 if (ret != -ERESTARTSYS)
548 NV_ERROR(cli, "validate gart_list\n");
549 validate_fini(op, NULL);
550 return ret;
551 }
552 relocs += ret;
553
554 ret = validate_list(chan, cli, &op->both_list, pbbo, user_buffers);
555 if (unlikely(ret < 0)) {
556 if (ret != -ERESTARTSYS)
557 NV_ERROR(cli, "validate both_list\n");
558 validate_fini(op, NULL);
559 return ret;
560 }
561 relocs += ret;
562
563 *apply_relocs = relocs;
564 return 0;
565 }
566
567 static inline void
568 u_free(void *addr)
569 {
570 if (!is_vmalloc_addr(addr))
571 kfree(addr);
572 else
573 vfree(addr);
574 }
575
576 static inline void *
577 u_memcpya(uint64_t user, unsigned nmemb, unsigned size)
578 {
579 void *mem;
580 void __user *userptr = (void __force __user *)(uintptr_t)user;
581
582 size *= nmemb;
583
584 mem = kmalloc(size, GFP_KERNEL | __GFP_NOWARN);
585 if (!mem)
586 mem = vmalloc(size);
587 if (!mem)
588 return ERR_PTR(-ENOMEM);
589
590 if (copy_from_user(mem, userptr, size)) {
591 u_free(mem);
592 return ERR_PTR(-EFAULT);
593 }
594
595 return mem;
596 }
597
598 static int
599 nouveau_gem_pushbuf_reloc_apply(struct nouveau_cli *cli,
600 struct drm_nouveau_gem_pushbuf *req,
601 struct drm_nouveau_gem_pushbuf_bo *bo)
602 {
603 struct drm_nouveau_gem_pushbuf_reloc *reloc = NULL;
604 int ret = 0;
605 unsigned i;
606
607 reloc = u_memcpya(req->relocs, req->nr_relocs, sizeof(*reloc));
608 if (IS_ERR(reloc))
609 return PTR_ERR(reloc);
610
611 for (i = 0; i < req->nr_relocs; i++) {
612 struct drm_nouveau_gem_pushbuf_reloc *r = &reloc[i];
613 struct drm_nouveau_gem_pushbuf_bo *b;
614 struct nouveau_bo *nvbo;
615 uint32_t data;
616
617 if (unlikely(r->bo_index > req->nr_buffers)) {
618 NV_ERROR(cli, "reloc bo index invalid\n");
619 ret = -EINVAL;
620 break;
621 }
622
623 b = &bo[r->bo_index];
624 if (b->presumed.valid)
625 continue;
626
627 if (unlikely(r->reloc_bo_index > req->nr_buffers)) {
628 NV_ERROR(cli, "reloc container bo index invalid\n");
629 ret = -EINVAL;
630 break;
631 }
632 nvbo = (void *)(unsigned long)bo[r->reloc_bo_index].user_priv;
633
634 if (unlikely(r->reloc_bo_offset + 4 >
635 nvbo->bo.mem.num_pages << PAGE_SHIFT)) {
636 NV_ERROR(cli, "reloc outside of bo\n");
637 ret = -EINVAL;
638 break;
639 }
640
641 if (!nvbo->kmap.virtual) {
642 ret = ttm_bo_kmap(&nvbo->bo, 0, nvbo->bo.mem.num_pages,
643 &nvbo->kmap);
644 if (ret) {
645 NV_ERROR(cli, "failed kmap for reloc\n");
646 break;
647 }
648 nvbo->validate_mapped = true;
649 }
650
651 if (r->flags & NOUVEAU_GEM_RELOC_LOW)
652 data = b->presumed.offset + r->data;
653 else
654 if (r->flags & NOUVEAU_GEM_RELOC_HIGH)
655 data = (b->presumed.offset + r->data) >> 32;
656 else
657 data = r->data;
658
659 if (r->flags & NOUVEAU_GEM_RELOC_OR) {
660 if (b->presumed.domain == NOUVEAU_GEM_DOMAIN_GART)
661 data |= r->tor;
662 else
663 data |= r->vor;
664 }
665
666 spin_lock(&nvbo->bo.bdev->fence_lock);
667 ret = ttm_bo_wait(&nvbo->bo, false, false, false);
668 spin_unlock(&nvbo->bo.bdev->fence_lock);
669 if (ret) {
670 NV_ERROR(cli, "reloc wait_idle failed: %d\n", ret);
671 break;
672 }
673
674 nouveau_bo_wr32(nvbo, r->reloc_bo_offset >> 2, data);
675 }
676
677 u_free(reloc);
678 return ret;
679 }
680
681 int
682 nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data,
683 struct drm_file *file_priv)
684 {
685 struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
686 struct nouveau_cli *cli = nouveau_cli(file_priv);
687 struct nouveau_abi16_chan *temp;
688 struct nouveau_drm *drm = nouveau_drm(dev);
689 struct drm_nouveau_gem_pushbuf *req = data;
690 struct drm_nouveau_gem_pushbuf_push *push;
691 struct drm_nouveau_gem_pushbuf_bo *bo;
692 struct nouveau_channel *chan = NULL;
693 struct validate_op op;
694 struct nouveau_fence *fence = NULL;
695 int i, j, ret = 0, do_reloc = 0;
696
697 if (unlikely(!abi16))
698 return -ENOMEM;
699
700 list_for_each_entry(temp, &abi16->channels, head) {
701 if (temp->chan->handle == (NVDRM_CHAN | req->channel)) {
702 chan = temp->chan;
703 break;
704 }
705 }
706
707 if (!chan)
708 return nouveau_abi16_put(abi16, -ENOENT);
709
710 req->vram_available = drm->gem.vram_available;
711 req->gart_available = drm->gem.gart_available;
712 if (unlikely(req->nr_push == 0))
713 goto out_next;
714
715 if (unlikely(req->nr_push > NOUVEAU_GEM_MAX_PUSH)) {
716 NV_ERROR(cli, "pushbuf push count exceeds limit: %d max %d\n",
717 req->nr_push, NOUVEAU_GEM_MAX_PUSH);
718 return nouveau_abi16_put(abi16, -EINVAL);
719 }
720
721 if (unlikely(req->nr_buffers > NOUVEAU_GEM_MAX_BUFFERS)) {
722 NV_ERROR(cli, "pushbuf bo count exceeds limit: %d max %d\n",
723 req->nr_buffers, NOUVEAU_GEM_MAX_BUFFERS);
724 return nouveau_abi16_put(abi16, -EINVAL);
725 }
726
727 if (unlikely(req->nr_relocs > NOUVEAU_GEM_MAX_RELOCS)) {
728 NV_ERROR(cli, "pushbuf reloc count exceeds limit: %d max %d\n",
729 req->nr_relocs, NOUVEAU_GEM_MAX_RELOCS);
730 return nouveau_abi16_put(abi16, -EINVAL);
731 }
732
733 push = u_memcpya(req->push, req->nr_push, sizeof(*push));
734 if (IS_ERR(push))
735 return nouveau_abi16_put(abi16, PTR_ERR(push));
736
737 bo = u_memcpya(req->buffers, req->nr_buffers, sizeof(*bo));
738 if (IS_ERR(bo)) {
739 u_free(push);
740 return nouveau_abi16_put(abi16, PTR_ERR(bo));
741 }
742
743 /* Ensure all push buffers are on validate list */
744 for (i = 0; i < req->nr_push; i++) {
745 if (push[i].bo_index >= req->nr_buffers) {
746 NV_ERROR(cli, "push %d buffer not in list\n", i);
747 ret = -EINVAL;
748 goto out_prevalid;
749 }
750 }
751
752 /* Validate buffer list */
753 ret = nouveau_gem_pushbuf_validate(chan, file_priv, bo, req->buffers,
754 req->nr_buffers, &op, &do_reloc);
755 if (ret) {
756 if (ret != -ERESTARTSYS)
757 NV_ERROR(cli, "validate: %d\n", ret);
758 goto out_prevalid;
759 }
760
761 /* Apply any relocations that are required */
762 if (do_reloc) {
763 ret = nouveau_gem_pushbuf_reloc_apply(cli, req, bo);
764 if (ret) {
765 NV_ERROR(cli, "reloc apply: %d\n", ret);
766 goto out;
767 }
768 }
769
770 if (chan->dma.ib_max) {
771 ret = nouveau_dma_wait(chan, req->nr_push + 1, 16);
772 if (ret) {
773 NV_ERROR(cli, "nv50cal_space: %d\n", ret);
774 goto out;
775 }
776
777 for (i = 0; i < req->nr_push; i++) {
778 struct nouveau_bo *nvbo = (void *)(unsigned long)
779 bo[push[i].bo_index].user_priv;
780
781 nv50_dma_push(chan, nvbo, push[i].offset,
782 push[i].length);
783 }
784 } else
785 if (nv_device(drm->device)->chipset >= 0x25) {
786 ret = RING_SPACE(chan, req->nr_push * 2);
787 if (ret) {
788 NV_ERROR(cli, "cal_space: %d\n", ret);
789 goto out;
790 }
791
792 for (i = 0; i < req->nr_push; i++) {
793 struct nouveau_bo *nvbo = (void *)(unsigned long)
794 bo[push[i].bo_index].user_priv;
795
796 OUT_RING(chan, (nvbo->bo.offset + push[i].offset) | 2);
797 OUT_RING(chan, 0);
798 }
799 } else {
800 ret = RING_SPACE(chan, req->nr_push * (2 + NOUVEAU_DMA_SKIPS));
801 if (ret) {
802 NV_ERROR(cli, "jmp_space: %d\n", ret);
803 goto out;
804 }
805
806 for (i = 0; i < req->nr_push; i++) {
807 struct nouveau_bo *nvbo = (void *)(unsigned long)
808 bo[push[i].bo_index].user_priv;
809 uint32_t cmd;
810
811 cmd = chan->push.vma.offset + ((chan->dma.cur + 2) << 2);
812 cmd |= 0x20000000;
813 if (unlikely(cmd != req->suffix0)) {
814 if (!nvbo->kmap.virtual) {
815 ret = ttm_bo_kmap(&nvbo->bo, 0,
816 nvbo->bo.mem.
817 num_pages,
818 &nvbo->kmap);
819 if (ret) {
820 WIND_RING(chan);
821 goto out;
822 }
823 nvbo->validate_mapped = true;
824 }
825
826 nouveau_bo_wr32(nvbo, (push[i].offset +
827 push[i].length - 8) / 4, cmd);
828 }
829
830 OUT_RING(chan, 0x20000000 |
831 (nvbo->bo.offset + push[i].offset));
832 OUT_RING(chan, 0);
833 for (j = 0; j < NOUVEAU_DMA_SKIPS; j++)
834 OUT_RING(chan, 0);
835 }
836 }
837
838 ret = nouveau_fence_new(chan, false, &fence);
839 if (ret) {
840 NV_ERROR(cli, "error fencing pushbuf: %d\n", ret);
841 WIND_RING(chan);
842 goto out;
843 }
844
845 out:
846 validate_fini(&op, fence);
847 nouveau_fence_unref(&fence);
848
849 out_prevalid:
850 u_free(bo);
851 u_free(push);
852
853 out_next:
854 if (chan->dma.ib_max) {
855 req->suffix0 = 0x00000000;
856 req->suffix1 = 0x00000000;
857 } else
858 if (nv_device(drm->device)->chipset >= 0x25) {
859 req->suffix0 = 0x00020000;
860 req->suffix1 = 0x00000000;
861 } else {
862 req->suffix0 = 0x20000000 |
863 (chan->push.vma.offset + ((chan->dma.cur + 2) << 2));
864 req->suffix1 = 0x00000000;
865 }
866
867 return nouveau_abi16_put(abi16, ret);
868 }
869
870 static inline uint32_t
871 domain_to_ttm(struct nouveau_bo *nvbo, uint32_t domain)
872 {
873 uint32_t flags = 0;
874
875 if (domain & NOUVEAU_GEM_DOMAIN_VRAM)
876 flags |= TTM_PL_FLAG_VRAM;
877 if (domain & NOUVEAU_GEM_DOMAIN_GART)
878 flags |= TTM_PL_FLAG_TT;
879
880 return flags;
881 }
882
883 int
884 nouveau_gem_ioctl_cpu_prep(struct drm_device *dev, void *data,
885 struct drm_file *file_priv)
886 {
887 struct drm_nouveau_gem_cpu_prep *req = data;
888 struct drm_gem_object *gem;
889 struct nouveau_bo *nvbo;
890 bool no_wait = !!(req->flags & NOUVEAU_GEM_CPU_PREP_NOWAIT);
891 int ret = -EINVAL;
892
893 gem = drm_gem_object_lookup(dev, file_priv, req->handle);
894 if (!gem)
895 return -ENOENT;
896 nvbo = nouveau_gem_object(gem);
897
898 spin_lock(&nvbo->bo.bdev->fence_lock);
899 ret = ttm_bo_wait(&nvbo->bo, true, true, no_wait);
900 spin_unlock(&nvbo->bo.bdev->fence_lock);
901 drm_gem_object_unreference_unlocked(gem);
902 return ret;
903 }
904
905 int
906 nouveau_gem_ioctl_cpu_fini(struct drm_device *dev, void *data,
907 struct drm_file *file_priv)
908 {
909 return 0;
910 }
911
912 int
913 nouveau_gem_ioctl_info(struct drm_device *dev, void *data,
914 struct drm_file *file_priv)
915 {
916 struct drm_nouveau_gem_info *req = data;
917 struct drm_gem_object *gem;
918 int ret;
919
920 gem = drm_gem_object_lookup(dev, file_priv, req->handle);
921 if (!gem)
922 return -ENOENT;
923
924 ret = nouveau_gem_info(file_priv, gem, req);
925 drm_gem_object_unreference_unlocked(gem);
926 return ret;
927 }
928
Linux with added FPC-III support