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drm/ttm: split no_wait argument in 2 GPU or reserve wait
[mirror_ubuntu-bionic-kernel.git] / drivers / gpu / drm / nouveau / nouveau_gem.c
CommitLineData
6ee73861
BS		 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->cpu_filp))
52 ttm_bo_synccpu_write_release(bo);
53
54 if (unlikely(nvbo->pin_refcnt)) {
55 nvbo->pin_refcnt = 1;
56 nouveau_bo_unpin(nvbo);
57 }
58
59 ttm_bo_unref(&bo);
60}
61
62int
63nouveau_gem_new(struct drm_device *dev, struct nouveau_channel *chan,
64 int size, int align, uint32_t flags, uint32_t tile_mode,
65 uint32_t tile_flags, bool no_vm, bool mappable,
66 struct nouveau_bo **pnvbo)
67{
68 struct nouveau_bo *nvbo;
69 int ret;
70
71 ret = nouveau_bo_new(dev, chan, size, align, flags, tile_mode,
72 tile_flags, no_vm, mappable, pnvbo);
73 if (ret)
74 return ret;
75 nvbo = *pnvbo;
76
77 nvbo->gem = drm_gem_object_alloc(dev, nvbo->bo.mem.size);
78 if (!nvbo->gem) {
79 nouveau_bo_ref(NULL, pnvbo);
80 return -ENOMEM;
81 }
82
83 nvbo->bo.persistant_swap_storage = nvbo->gem->filp;
84 nvbo->gem->driver_private = nvbo;
85 return 0;
86}
87
88static int
89nouveau_gem_info(struct drm_gem_object *gem, struct drm_nouveau_gem_info *rep)
90{
91 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
92
93 if (nvbo->bo.mem.mem_type == TTM_PL_TT)
94 rep->domain = NOUVEAU_GEM_DOMAIN_GART;
95 else
96 rep->domain = NOUVEAU_GEM_DOMAIN_VRAM;
97
98 rep->size = nvbo->bo.mem.num_pages << PAGE_SHIFT;
99 rep->offset = nvbo->bo.offset;
100 rep->map_handle = nvbo->mappable ? nvbo->bo.addr_space_offset : 0;
101 rep->tile_mode = nvbo->tile_mode;
102 rep->tile_flags = nvbo->tile_flags;
103 return 0;
104}
105
106static bool
107nouveau_gem_tile_flags_valid(struct drm_device *dev, uint32_t tile_flags) {
108 switch (tile_flags) {
109 case 0x0000:
110 case 0x1800:
111 case 0x2800:
112 case 0x4800:
113 case 0x7000:
114 case 0x7400:
115 case 0x7a00:
116 case 0xe000:
117 break;
118 default:
119 NV_ERROR(dev, "bad page flags: 0x%08x\n", tile_flags);
120 return false;
121 }
122
123 return true;
124}
125
126int
127nouveau_gem_ioctl_new(struct drm_device *dev, void *data,
128 struct drm_file *file_priv)
129{
130 struct drm_nouveau_private *dev_priv = dev->dev_private;
131 struct drm_nouveau_gem_new *req = data;
132 struct nouveau_bo *nvbo = NULL;
133 struct nouveau_channel *chan = NULL;
134 uint32_t flags = 0;
135 int ret = 0;
136
137 NOUVEAU_CHECK_INITIALISED_WITH_RETURN;
138
139 if (unlikely(dev_priv->ttm.bdev.dev_mapping == NULL))
140 dev_priv->ttm.bdev.dev_mapping = dev_priv->dev->dev_mapping;
141
142 if (req->channel_hint) {
143 NOUVEAU_GET_USER_CHANNEL_WITH_RETURN(req->channel_hint,
144 file_priv, chan);
145 }
146
147 if (req->info.domain & NOUVEAU_GEM_DOMAIN_VRAM)
148 flags |= TTM_PL_FLAG_VRAM;
149 if (req->info.domain & NOUVEAU_GEM_DOMAIN_GART)
150 flags |= TTM_PL_FLAG_TT;
151 if (!flags || req->info.domain & NOUVEAU_GEM_DOMAIN_CPU)
152 flags |= TTM_PL_FLAG_SYSTEM;
153
154 if (!nouveau_gem_tile_flags_valid(dev, req->info.tile_flags))
155 return -EINVAL;
156
157 ret = nouveau_gem_new(dev, chan, req->info.size, req->align, flags,
158 req->info.tile_mode, req->info.tile_flags, false,
159 (req->info.domain & NOUVEAU_GEM_DOMAIN_MAPPABLE),
160 &nvbo);
161 if (ret)
162 return ret;
163
164 ret = nouveau_gem_info(nvbo->gem, &req->info);
165 if (ret)
166 goto out;
167
168 ret = drm_gem_handle_create(file_priv, nvbo->gem, &req->info.handle);
169out:
bc9025bd 170 drm_gem_object_handle_unreference_unlocked(nvbo->gem);
6ee73861
BS		 171
172 if (ret)
bc9025bd 173 drm_gem_object_unreference_unlocked(nvbo->gem);
6ee73861
BS		 174 return ret;
175}
176
177static int
178nouveau_gem_set_domain(struct drm_gem_object *gem, uint32_t read_domains,
179 uint32_t write_domains, uint32_t valid_domains)
180{
181 struct nouveau_bo *nvbo = gem->driver_private;
182 struct ttm_buffer_object *bo = &nvbo->bo;
183 uint64_t flags;
184
185 if (!valid_domains || (!read_domains && !write_domains))
186 return -EINVAL;
187
188 if (write_domains) {
189 if ((valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
190 (write_domains & NOUVEAU_GEM_DOMAIN_VRAM))
191 flags = TTM_PL_FLAG_VRAM;
192 else
193 if ((valid_domains & NOUVEAU_GEM_DOMAIN_GART) &&
194 (write_domains & NOUVEAU_GEM_DOMAIN_GART))
195 flags = TTM_PL_FLAG_TT;
196 else
197 return -EINVAL;
198 } else {
199 if ((valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
200 (read_domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
201 bo->mem.mem_type == TTM_PL_VRAM)
202 flags = TTM_PL_FLAG_VRAM;
203 else
204 if ((valid_domains & NOUVEAU_GEM_DOMAIN_GART) &&
205 (read_domains & NOUVEAU_GEM_DOMAIN_GART) &&
206 bo->mem.mem_type == TTM_PL_TT)
207 flags = TTM_PL_FLAG_TT;
208 else
209 if ((valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
210 (read_domains & NOUVEAU_GEM_DOMAIN_VRAM))
211 flags = TTM_PL_FLAG_VRAM;
212 else
213 flags = TTM_PL_FLAG_TT;
214 }
215
216 nouveau_bo_placement_set(nvbo, flags);
217 return 0;
218}
219
220struct validate_op {
6ee73861
BS		 221 struct list_head vram_list;
222 struct list_head gart_list;
223 struct list_head both_list;
224};
225
226static void
227validate_fini_list(struct list_head *list, struct nouveau_fence *fence)
228{
229 struct list_head *entry, *tmp;
230 struct nouveau_bo *nvbo;
231
232 list_for_each_safe(entry, tmp, list) {
233 nvbo = list_entry(entry, struct nouveau_bo, entry);
234 if (likely(fence)) {
235 struct nouveau_fence *prev_fence;
236
237 spin_lock(&nvbo->bo.lock);
238 prev_fence = nvbo->bo.sync_obj;
239 nvbo->bo.sync_obj = nouveau_fence_ref(fence);
240 spin_unlock(&nvbo->bo.lock);
241 nouveau_fence_unref((void *)&prev_fence);
242 }
243
a1606a95
BS		 244 if (unlikely(nvbo->validate_mapped)) {
245 ttm_bo_kunmap(&nvbo->kmap);
246 nvbo->validate_mapped = false;
247 }
248
6ee73861
BS		 249 list_del(&nvbo->entry);
250 nvbo->reserved_by = NULL;
251 ttm_bo_unreserve(&nvbo->bo);
252 drm_gem_object_unreference(nvbo->gem);
253 }
254}
255
256static void
234896a7 257validate_fini(struct validate_op *op, struct nouveau_fence* fence)
6ee73861 258{
234896a7
LB		 259 validate_fini_list(&op->vram_list, fence);
260 validate_fini_list(&op->gart_list, fence);
261 validate_fini_list(&op->both_list, fence);
6ee73861
BS		 262}
263
264static int
265validate_init(struct nouveau_channel *chan, struct drm_file *file_priv,
266 struct drm_nouveau_gem_pushbuf_bo *pbbo,
267 int nr_buffers, struct validate_op *op)
268{
269 struct drm_device *dev = chan->dev;
270 struct drm_nouveau_private *dev_priv = dev->dev_private;
271 uint32_t sequence;
272 int trycnt = 0;
273 int ret, i;
274
275 sequence = atomic_add_return(1, &dev_priv->ttm.validate_sequence);
276retry:
277 if (++trycnt > 100000) {
278 NV_ERROR(dev, "%s failed and gave up.\n", __func__);
279 return -EINVAL;
280 }
281
282 for (i = 0; i < nr_buffers; i++) {
283 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[i];
284 struct drm_gem_object *gem;
285 struct nouveau_bo *nvbo;
286
287 gem = drm_gem_object_lookup(dev, file_priv, b->handle);
288 if (!gem) {
289 NV_ERROR(dev, "Unknown handle 0x%08x\n", b->handle);
290 validate_fini(op, NULL);
291 return -EINVAL;
292 }
293 nvbo = gem->driver_private;
294
295 if (nvbo->reserved_by && nvbo->reserved_by == file_priv) {
296 NV_ERROR(dev, "multiple instances of buffer %d on "
297 "validation list\n", b->handle);
298 validate_fini(op, NULL);
299 return -EINVAL;
300 }
301
302 ret = ttm_bo_reserve(&nvbo->bo, false, false, true, sequence);
303 if (ret) {
304 validate_fini(op, NULL);
305 if (ret == -EAGAIN)
306 ret = ttm_bo_wait_unreserved(&nvbo->bo, false);
307 drm_gem_object_unreference(gem);
a1606a95
BS		 308 if (ret) {
309 NV_ERROR(dev, "fail reserve\n");
6ee73861 310 return ret;
a1606a95 311 }
6ee73861
BS		 312 goto retry;
313 }
314
a1606a95 315 b->user_priv = (uint64_t)(unsigned long)nvbo;
6ee73861
BS		 316 nvbo->reserved_by = file_priv;
317 nvbo->pbbo_index = i;
318 if ((b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
319 (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART))
320 list_add_tail(&nvbo->entry, &op->both_list);
321 else
322 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM)
323 list_add_tail(&nvbo->entry, &op->vram_list);
324 else
325 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART)
326 list_add_tail(&nvbo->entry, &op->gart_list);
327 else {
328 NV_ERROR(dev, "invalid valid domains: 0x%08x\n",
329 b->valid_domains);
0208843d 330 list_add_tail(&nvbo->entry, &op->both_list);
6ee73861
BS		 331 validate_fini(op, NULL);
332 return -EINVAL;
333 }
334
335 if (unlikely(atomic_read(&nvbo->bo.cpu_writers) > 0)) {
336 validate_fini(op, NULL);
337
338 if (nvbo->cpu_filp == file_priv) {
339 NV_ERROR(dev, "bo %p mapped by process trying "
340 "to validate it!\n", nvbo);
341 return -EINVAL;
342 }
343
344 ret = ttm_bo_wait_cpu(&nvbo->bo, false);
a1606a95
BS		 345 if (ret) {
346 NV_ERROR(dev, "fail wait_cpu\n");
6ee73861 347 return ret;
a1606a95 348 }
6ee73861
BS		 349 goto retry;
350 }
351 }
352
353 return 0;
354}
355
356static int
357validate_list(struct nouveau_channel *chan, struct list_head *list,
358 struct drm_nouveau_gem_pushbuf_bo *pbbo, uint64_t user_pbbo_ptr)
359{
360 struct drm_nouveau_gem_pushbuf_bo __user *upbbo =
361 (void __force __user *)(uintptr_t)user_pbbo_ptr;
a1606a95 362 struct drm_device *dev = chan->dev;
6ee73861
BS		 363 struct nouveau_bo *nvbo;
364 int ret, relocs = 0;
365
366 list_for_each_entry(nvbo, list, entry) {
367 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[nvbo->pbbo_index];
368 struct nouveau_fence *prev_fence = nvbo->bo.sync_obj;
369
370 if (prev_fence && nouveau_fence_channel(prev_fence) != chan) {
371 spin_lock(&nvbo->bo.lock);
372 ret = ttm_bo_wait(&nvbo->bo, false, false, false);
373 spin_unlock(&nvbo->bo.lock);
a1606a95
BS		 374 if (unlikely(ret)) {
375 NV_ERROR(dev, "fail wait other chan\n");
6ee73861 376 return ret;
a1606a95 377 }
6ee73861
BS		 378 }
379
380 ret = nouveau_gem_set_domain(nvbo->gem, b->read_domains,
381 b->write_domains,
382 b->valid_domains);
a1606a95
BS		 383 if (unlikely(ret)) {
384 NV_ERROR(dev, "fail set_domain\n");
6ee73861 385 return ret;
a1606a95 386 }
6ee73861
BS		 387
388 nvbo->channel = chan;
389 ret = ttm_bo_validate(&nvbo->bo, &nvbo->placement,
9d87fa21 390 false, false, false);
6ee73861 391 nvbo->channel = NULL;
a1606a95
BS		 392 if (unlikely(ret)) {
393 NV_ERROR(dev, "fail ttm_validate\n");
6ee73861 394 return ret;
a1606a95 395 }
6ee73861 396
a1606a95 397 if (nvbo->bo.offset == b->presumed.offset &&
6ee73861 398 ((nvbo->bo.mem.mem_type == TTM_PL_VRAM &&
a1606a95 399 b->presumed.domain & NOUVEAU_GEM_DOMAIN_VRAM) ||
6ee73861 400 (nvbo->bo.mem.mem_type == TTM_PL_TT &&
a1606a95 401 b->presumed.domain & NOUVEAU_GEM_DOMAIN_GART)))
6ee73861
BS		 402 continue;
403
404 if (nvbo->bo.mem.mem_type == TTM_PL_TT)
a1606a95 405 b->presumed.domain = NOUVEAU_GEM_DOMAIN_GART;
6ee73861 406 else
a1606a95
BS		 407 b->presumed.domain = NOUVEAU_GEM_DOMAIN_VRAM;
408 b->presumed.offset = nvbo->bo.offset;
409 b->presumed.valid = 0;
6ee73861
BS		 410 relocs++;
411
a1606a95
BS		 412 if (DRM_COPY_TO_USER(&upbbo[nvbo->pbbo_index].presumed,
413 &b->presumed, sizeof(b->presumed)))
6ee73861
BS		 414 return -EFAULT;
415 }
416
417 return relocs;
418}
419
420static int
421nouveau_gem_pushbuf_validate(struct nouveau_channel *chan,
422 struct drm_file *file_priv,
423 struct drm_nouveau_gem_pushbuf_bo *pbbo,
424 uint64_t user_buffers, int nr_buffers,
425 struct validate_op *op, int *apply_relocs)
426{
a1606a95 427 struct drm_device *dev = chan->dev;
6ee73861
BS		 428 int ret, relocs = 0;
429
430 INIT_LIST_HEAD(&op->vram_list);
431 INIT_LIST_HEAD(&op->gart_list);
432 INIT_LIST_HEAD(&op->both_list);
433
6ee73861
BS		 434 if (nr_buffers == 0)
435 return 0;
436
437 ret = validate_init(chan, file_priv, pbbo, nr_buffers, op);
a1606a95
BS		 438 if (unlikely(ret)) {
439 NV_ERROR(dev, "validate_init\n");
6ee73861 440 return ret;
a1606a95 441 }
6ee73861
BS		 442
443 ret = validate_list(chan, &op->vram_list, pbbo, user_buffers);
444 if (unlikely(ret < 0)) {
a1606a95 445 NV_ERROR(dev, "validate vram_list\n");
6ee73861
BS		 446 validate_fini(op, NULL);
447 return ret;
448 }
449 relocs += ret;
450
451 ret = validate_list(chan, &op->gart_list, pbbo, user_buffers);
452 if (unlikely(ret < 0)) {
a1606a95 453 NV_ERROR(dev, "validate gart_list\n");
6ee73861
BS		 454 validate_fini(op, NULL);
455 return ret;
456 }
457 relocs += ret;
458
459 ret = validate_list(chan, &op->both_list, pbbo, user_buffers);
460 if (unlikely(ret < 0)) {
a1606a95 461 NV_ERROR(dev, "validate both_list\n");
6ee73861
BS		 462 validate_fini(op, NULL);
463 return ret;
464 }
465 relocs += ret;
466
467 *apply_relocs = relocs;
468 return 0;
469}
470
471static inline void *
472u_memcpya(uint64_t user, unsigned nmemb, unsigned size)
473{
474 void *mem;
475 void __user *userptr = (void __force __user *)(uintptr_t)user;
476
477 mem = kmalloc(nmemb * size, GFP_KERNEL);
478 if (!mem)
479 return ERR_PTR(-ENOMEM);
480
481 if (DRM_COPY_FROM_USER(mem, userptr, nmemb * size)) {
482 kfree(mem);
483 return ERR_PTR(-EFAULT);
484 }
485
486 return mem;
487}
488
489static int
a1606a95
BS		 490nouveau_gem_pushbuf_reloc_apply(struct drm_device *dev,
491 struct drm_nouveau_gem_pushbuf *req,
492 struct drm_nouveau_gem_pushbuf_bo *bo)
6ee73861
BS		 493{
494 struct drm_nouveau_gem_pushbuf_reloc *reloc = NULL;
12f735b7
LB		 495 int ret = 0;
496 unsigned i;
6ee73861 497
a1606a95 498 reloc = u_memcpya(req->relocs, req->nr_relocs, sizeof(*reloc));
6ee73861
BS		 499 if (IS_ERR(reloc))
500 return PTR_ERR(reloc);
501
a1606a95 502 for (i = 0; i < req->nr_relocs; i++) {
6ee73861
BS		 503 struct drm_nouveau_gem_pushbuf_reloc *r = &reloc[i];
504 struct drm_nouveau_gem_pushbuf_bo *b;
a1606a95 505 struct nouveau_bo *nvbo;
6ee73861
BS		 506 uint32_t data;
507
a1606a95
BS		 508 if (unlikely(r->bo_index > req->nr_buffers)) {
509 NV_ERROR(dev, "reloc bo index invalid\n");
6ee73861
BS		 510 ret = -EINVAL;
511 break;
512 }
513
514 b = &bo[r->bo_index];
a1606a95 515 if (b->presumed.valid)
6ee73861
BS		 516 continue;
517
a1606a95
BS		 518 if (unlikely(r->reloc_bo_index > req->nr_buffers)) {
519 NV_ERROR(dev, "reloc container bo index invalid\n");
520 ret = -EINVAL;
521 break;
522 }
523 nvbo = (void *)(unsigned long)bo[r->reloc_bo_index].user_priv;
524
525 if (unlikely(r->reloc_bo_offset + 4 >
526 nvbo->bo.mem.num_pages << PAGE_SHIFT)) {
527 NV_ERROR(dev, "reloc outside of bo\n");
528 ret = -EINVAL;
529 break;
530 }
531
532 if (!nvbo->kmap.virtual) {
533 ret = ttm_bo_kmap(&nvbo->bo, 0, nvbo->bo.mem.num_pages,
534 &nvbo->kmap);
535 if (ret) {
536 NV_ERROR(dev, "failed kmap for reloc\n");
537 break;
538 }
539 nvbo->validate_mapped = true;
540 }
541
6ee73861 542 if (r->flags & NOUVEAU_GEM_RELOC_LOW)
a1606a95 543 data = b->presumed.offset + r->data;
6ee73861
BS		 544 else
545 if (r->flags & NOUVEAU_GEM_RELOC_HIGH)
a1606a95 546 data = (b->presumed.offset + r->data) >> 32;
6ee73861
BS		 547 else
548 data = r->data;
549
550 if (r->flags & NOUVEAU_GEM_RELOC_OR) {
a1606a95 551 if (b->presumed.domain == NOUVEAU_GEM_DOMAIN_GART)
6ee73861
BS		 552 data |= r->tor;
553 else
554 data |= r->vor;
555 }
556
a1606a95
BS		 557 spin_lock(&nvbo->bo.lock);
558 ret = ttm_bo_wait(&nvbo->bo, false, false, false);
e32b2c88 559 spin_unlock(&nvbo->bo.lock);
a1606a95
BS		 560 if (ret) {
561 NV_ERROR(dev, "reloc wait_idle failed: %d\n", ret);
562 break;
563 }
a1606a95
BS		 564
565 nouveau_bo_wr32(nvbo, r->reloc_bo_offset >> 2, data);
6ee73861
BS		 566 }
567
568 kfree(reloc);
569 return ret;
570}
571
572int
573nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data,
574 struct drm_file *file_priv)
575{
a1606a95 576 struct drm_nouveau_private *dev_priv = dev->dev_private;
6ee73861 577 struct drm_nouveau_gem_pushbuf *req = data;
a1606a95
BS		 578 struct drm_nouveau_gem_pushbuf_push *push;
579 struct drm_nouveau_gem_pushbuf_bo *bo;
6ee73861
BS		 580 struct nouveau_channel *chan;
581 struct validate_op op;
a1606a95
BS		 582 struct nouveau_fence *fence = 0;
583 int i, j, ret = 0, do_reloc = 0;
6ee73861
BS		 584
585 NOUVEAU_CHECK_INITIALISED_WITH_RETURN;
586 NOUVEAU_GET_USER_CHANNEL_WITH_RETURN(req->channel, file_priv, chan);
587
a1606a95
BS		 588 req->vram_available = dev_priv->fb_aper_free;
589 req->gart_available = dev_priv->gart_info.aper_free;
590 if (unlikely(req->nr_push == 0))
591 goto out_next;
6ee73861 592
a1606a95
BS		 593 if (unlikely(req->nr_push > NOUVEAU_GEM_MAX_PUSH)) {
594 NV_ERROR(dev, "pushbuf push count exceeds limit: %d max %d\n",
595 req->nr_push, NOUVEAU_GEM_MAX_PUSH);
596 return -EINVAL;
6ee73861
BS		 597 }
598
a1606a95
BS		 599 if (unlikely(req->nr_buffers > NOUVEAU_GEM_MAX_BUFFERS)) {
600 NV_ERROR(dev, "pushbuf bo count exceeds limit: %d max %d\n",
601 req->nr_buffers, NOUVEAU_GEM_MAX_BUFFERS);
602 return -EINVAL;
6ee73861
BS		 603 }
604
a1606a95
BS		 605 if (unlikely(req->nr_relocs > NOUVEAU_GEM_MAX_RELOCS)) {
606 NV_ERROR(dev, "pushbuf reloc count exceeds limit: %d max %d\n",
607 req->nr_relocs, NOUVEAU_GEM_MAX_RELOCS);
6ee73861
BS		 608 return -EINVAL;
609 }
610
a1606a95
BS		 611 push = u_memcpya(req->push, req->nr_push, sizeof(*push));
612 if (IS_ERR(push))
613 return PTR_ERR(push);
614
6ee73861 615 bo = u_memcpya(req->buffers, req->nr_buffers, sizeof(*bo));
a1606a95
BS		 616 if (IS_ERR(bo)) {
617 kfree(push);
6ee73861 618 return PTR_ERR(bo);
a1606a95 619 }
6ee73861
BS		 620
621 mutex_lock(&dev->struct_mutex);
622
623 /* Validate buffer list */
624 ret = nouveau_gem_pushbuf_validate(chan, file_priv, bo, req->buffers,
625 req->nr_buffers, &op, &do_reloc);
626 if (ret) {
627 NV_ERROR(dev, "validate: %d\n", ret);
628 goto out;
629 }
630
6ee73861
BS		 631 /* Apply any relocations that are required */
632 if (do_reloc) {
a1606a95 633 ret = nouveau_gem_pushbuf_reloc_apply(dev, req, bo);
6ee73861 634 if (ret) {
6ee73861 635 NV_ERROR(dev, "reloc apply: %d\n", ret);
6ee73861
BS		 636 goto out;
637 }
6ee73861 638 }
6ee73861 639
9a391ad8 640 if (chan->dma.ib_max) {
a1606a95 641 ret = nouveau_dma_wait(chan, req->nr_push + 1, 6);
6ee73861 642 if (ret) {
9a391ad8 643 NV_INFO(dev, "nv50cal_space: %d\n", ret);
6ee73861
BS		 644 goto out;
645 }
6ee73861 646
a1606a95
BS		 647 for (i = 0; i < req->nr_push; i++) {
648 struct nouveau_bo *nvbo = (void *)(unsigned long)
649 bo[push[i].bo_index].user_priv;
650
651 nv50_dma_push(chan, nvbo, push[i].offset,
652 push[i].length);
653 }
9a391ad8 654 } else
2ccb04ec 655 if (dev_priv->card_type >= NV_20) {
a1606a95 656 ret = RING_SPACE(chan, req->nr_push * 2);
6ee73861
BS		 657 if (ret) {
658 NV_ERROR(dev, "cal_space: %d\n", ret);
659 goto out;
660 }
a1606a95
BS		 661
662 for (i = 0; i < req->nr_push; i++) {
663 struct nouveau_bo *nvbo = (void *)(unsigned long)
664 bo[push[i].bo_index].user_priv;
665 struct drm_mm_node *mem = nvbo->bo.mem.mm_node;
666
667 OUT_RING(chan, ((mem->start << PAGE_SHIFT) +
668 push[i].offset) | 2);
669 OUT_RING(chan, 0);
670 }
6ee73861 671 } else {
a1606a95 672 ret = RING_SPACE(chan, req->nr_push * (2 + NOUVEAU_DMA_SKIPS));
6ee73861
BS		 673 if (ret) {
674 NV_ERROR(dev, "jmp_space: %d\n", ret);
675 goto out;
676 }
6ee73861 677
a1606a95
BS		 678 for (i = 0; i < req->nr_push; i++) {
679 struct nouveau_bo *nvbo = (void *)(unsigned long)
680 bo[push[i].bo_index].user_priv;
681 struct drm_mm_node *mem = nvbo->bo.mem.mm_node;
682 uint32_t cmd;
683
684 cmd = chan->pushbuf_base + ((chan->dma.cur + 2) << 2);
685 cmd |= 0x20000000;
686 if (unlikely(cmd != req->suffix0)) {
687 if (!nvbo->kmap.virtual) {
688 ret = ttm_bo_kmap(&nvbo->bo, 0,
689 nvbo->bo.mem.
690 num_pages,
691 &nvbo->kmap);
692 if (ret) {
693 WIND_RING(chan);
694 goto out;
695 }
696 nvbo->validate_mapped = true;
697 }
698
699 nouveau_bo_wr32(nvbo, (push[i].offset +
700 push[i].length - 8) / 4, cmd);
701 }
702
703 OUT_RING(chan, ((mem->start << PAGE_SHIFT) +
704 push[i].offset) | 0x20000000);
6ee73861 705 OUT_RING(chan, 0);
a1606a95
BS		 706 for (j = 0; j < NOUVEAU_DMA_SKIPS; j++)
707 OUT_RING(chan, 0);
708 }
6ee73861
BS		 709 }
710
234896a7 711 ret = nouveau_fence_new(chan, &fence, true);
6ee73861
BS		 712 if (ret) {
713 NV_ERROR(dev, "error fencing pushbuf: %d\n", ret);
714 WIND_RING(chan);
715 goto out;
716 }
717
718out:
234896a7
LB		 719 validate_fini(&op, fence);
720 nouveau_fence_unref((void**)&fence);
6ee73861
BS		 721 mutex_unlock(&dev->struct_mutex);
722 kfree(bo);
a1606a95 723 kfree(push);
6ee73861
BS		 724
725out_next:
9a391ad8
BS		 726 if (chan->dma.ib_max) {
727 req->suffix0 = 0x00000000;
728 req->suffix1 = 0x00000000;
729 } else
2ccb04ec 730 if (dev_priv->card_type >= NV_20) {
6ee73861
BS		 731 req->suffix0 = 0x00020000;
732 req->suffix1 = 0x00000000;
733 } else {
734 req->suffix0 = 0x20000000 |
735 (chan->pushbuf_base + ((chan->dma.cur + 2) << 2));
736 req->suffix1 = 0x00000000;
737 }
738
739 return ret;
740}
741
6ee73861
BS		 742static inline uint32_t
743domain_to_ttm(struct nouveau_bo *nvbo, uint32_t domain)
744{
745 uint32_t flags = 0;
746
747 if (domain & NOUVEAU_GEM_DOMAIN_VRAM)
748 flags |= TTM_PL_FLAG_VRAM;
749 if (domain & NOUVEAU_GEM_DOMAIN_GART)
750 flags |= TTM_PL_FLAG_TT;
751
752 return flags;
753}
754
6ee73861
BS		 755int
756nouveau_gem_ioctl_cpu_prep(struct drm_device *dev, void *data,
757 struct drm_file *file_priv)
758{
759 struct drm_nouveau_gem_cpu_prep *req = data;
760 struct drm_gem_object *gem;
761 struct nouveau_bo *nvbo;
762 bool no_wait = !!(req->flags & NOUVEAU_GEM_CPU_PREP_NOWAIT);
763 int ret = -EINVAL;
764
765 NOUVEAU_CHECK_INITIALISED_WITH_RETURN;
766
767 gem = drm_gem_object_lookup(dev, file_priv, req->handle);
768 if (!gem)
769 return ret;
770 nvbo = nouveau_gem_object(gem);
771
772 if (nvbo->cpu_filp) {
773 if (nvbo->cpu_filp == file_priv)
774 goto out;
775
776 ret = ttm_bo_wait_cpu(&nvbo->bo, no_wait);
6ee73861
BS		 777 if (ret)
778 goto out;
779 }
780
781 if (req->flags & NOUVEAU_GEM_CPU_PREP_NOBLOCK) {
f0fbe3eb 782 spin_lock(&nvbo->bo.lock);
6ee73861 783 ret = ttm_bo_wait(&nvbo->bo, false, false, no_wait);
f0fbe3eb 784 spin_unlock(&nvbo->bo.lock);
6ee73861
BS		 785 } else {
786 ret = ttm_bo_synccpu_write_grab(&nvbo->bo, no_wait);
6ee73861
BS		 787 if (ret == 0)
788 nvbo->cpu_filp = file_priv;
789 }
790
791out:
bc9025bd 792 drm_gem_object_unreference_unlocked(gem);
6ee73861
BS		 793 return ret;
794}
795
796int
797nouveau_gem_ioctl_cpu_fini(struct drm_device *dev, void *data,
798 struct drm_file *file_priv)
799{
800 struct drm_nouveau_gem_cpu_prep *req = data;
801 struct drm_gem_object *gem;
802 struct nouveau_bo *nvbo;
803 int ret = -EINVAL;
804
805 NOUVEAU_CHECK_INITIALISED_WITH_RETURN;
806
807 gem = drm_gem_object_lookup(dev, file_priv, req->handle);
808 if (!gem)
809 return ret;
810 nvbo = nouveau_gem_object(gem);
811
812 if (nvbo->cpu_filp != file_priv)
813 goto out;
814 nvbo->cpu_filp = NULL;
815
816 ttm_bo_synccpu_write_release(&nvbo->bo);
817 ret = 0;
818
819out:
bc9025bd 820 drm_gem_object_unreference_unlocked(gem);
6ee73861
BS		 821 return ret;
822}
823
824int
825nouveau_gem_ioctl_info(struct drm_device *dev, void *data,
826 struct drm_file *file_priv)
827{
828 struct drm_nouveau_gem_info *req = data;
829 struct drm_gem_object *gem;
830 int ret;
831
832 NOUVEAU_CHECK_INITIALISED_WITH_RETURN;
833
834 gem = drm_gem_object_lookup(dev, file_priv, req->handle);
835 if (!gem)
836 return -EINVAL;
837
838 ret = nouveau_gem_info(gem, req);
bc9025bd 839 drm_gem_object_unreference_unlocked(gem);
6ee73861
BS		 840 return ret;
841}
842
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