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drm: free core gem object from driver callbacks
[deliverable/linux.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);
fd632aa3
DV		 60
61 drm_gem_object_release(gem);
62 kfree(gem);
6ee73861
BS		 63}
64
65int
66nouveau_gem_new(struct drm_device *dev, struct nouveau_channel *chan,
67 int size, int align, uint32_t flags, uint32_t tile_mode,
68 uint32_t tile_flags, bool no_vm, bool mappable,
69 struct nouveau_bo **pnvbo)
70{
71 struct nouveau_bo *nvbo;
72 int ret;
73
74 ret = nouveau_bo_new(dev, chan, size, align, flags, tile_mode,
75 tile_flags, no_vm, mappable, pnvbo);
76 if (ret)
77 return ret;
78 nvbo = *pnvbo;
79
80 nvbo->gem = drm_gem_object_alloc(dev, nvbo->bo.mem.size);
81 if (!nvbo->gem) {
82 nouveau_bo_ref(NULL, pnvbo);
83 return -ENOMEM;
84 }
85
86 nvbo->bo.persistant_swap_storage = nvbo->gem->filp;
87 nvbo->gem->driver_private = nvbo;
88 return 0;
89}
90
91static int
92nouveau_gem_info(struct drm_gem_object *gem, struct drm_nouveau_gem_info *rep)
93{
94 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
95
96 if (nvbo->bo.mem.mem_type == TTM_PL_TT)
97 rep->domain = NOUVEAU_GEM_DOMAIN_GART;
98 else
99 rep->domain = NOUVEAU_GEM_DOMAIN_VRAM;
100
101 rep->size = nvbo->bo.mem.num_pages << PAGE_SHIFT;
102 rep->offset = nvbo->bo.offset;
103 rep->map_handle = nvbo->mappable ? nvbo->bo.addr_space_offset : 0;
104 rep->tile_mode = nvbo->tile_mode;
105 rep->tile_flags = nvbo->tile_flags;
106 return 0;
107}
108
109static bool
110nouveau_gem_tile_flags_valid(struct drm_device *dev, uint32_t tile_flags) {
111 switch (tile_flags) {
112 case 0x0000:
113 case 0x1800:
114 case 0x2800:
115 case 0x4800:
116 case 0x7000:
117 case 0x7400:
118 case 0x7a00:
119 case 0xe000:
120 break;
121 default:
122 NV_ERROR(dev, "bad page flags: 0x%08x\n", tile_flags);
123 return false;
124 }
125
126 return true;
127}
128
129int
130nouveau_gem_ioctl_new(struct drm_device *dev, void *data,
131 struct drm_file *file_priv)
132{
133 struct drm_nouveau_private *dev_priv = dev->dev_private;
134 struct drm_nouveau_gem_new *req = data;
135 struct nouveau_bo *nvbo = NULL;
136 struct nouveau_channel *chan = NULL;
137 uint32_t flags = 0;
138 int ret = 0;
139
140 NOUVEAU_CHECK_INITIALISED_WITH_RETURN;
141
142 if (unlikely(dev_priv->ttm.bdev.dev_mapping == NULL))
143 dev_priv->ttm.bdev.dev_mapping = dev_priv->dev->dev_mapping;
144
145 if (req->channel_hint) {
146 NOUVEAU_GET_USER_CHANNEL_WITH_RETURN(req->channel_hint,
147 file_priv, chan);
148 }
149
150 if (req->info.domain & NOUVEAU_GEM_DOMAIN_VRAM)
151 flags |= TTM_PL_FLAG_VRAM;
152 if (req->info.domain & NOUVEAU_GEM_DOMAIN_GART)
153 flags |= TTM_PL_FLAG_TT;
154 if (!flags || req->info.domain & NOUVEAU_GEM_DOMAIN_CPU)
155 flags |= TTM_PL_FLAG_SYSTEM;
156
157 if (!nouveau_gem_tile_flags_valid(dev, req->info.tile_flags))
158 return -EINVAL;
159
160 ret = nouveau_gem_new(dev, chan, req->info.size, req->align, flags,
161 req->info.tile_mode, req->info.tile_flags, false,
162 (req->info.domain & NOUVEAU_GEM_DOMAIN_MAPPABLE),
163 &nvbo);
164 if (ret)
165 return ret;
166
167 ret = nouveau_gem_info(nvbo->gem, &req->info);
168 if (ret)
169 goto out;
170
171 ret = drm_gem_handle_create(file_priv, nvbo->gem, &req->info.handle);
172out:
bc9025bd 173 drm_gem_object_handle_unreference_unlocked(nvbo->gem);
6ee73861
BS		 174
175 if (ret)
bc9025bd 176 drm_gem_object_unreference_unlocked(nvbo->gem);
6ee73861
BS		 177 return ret;
178}
179
180static int
181nouveau_gem_set_domain(struct drm_gem_object *gem, uint32_t read_domains,
182 uint32_t write_domains, uint32_t valid_domains)
183{
184 struct nouveau_bo *nvbo = gem->driver_private;
185 struct ttm_buffer_object *bo = &nvbo->bo;
78ad0f7b
FJ		 186 uint32_t domains = valid_domains &
187 (write_domains ? write_domains : read_domains);
188 uint32_t pref_flags = 0, valid_flags = 0;
6ee73861 189
78ad0f7b 190 if (!domains)
6ee73861
BS		 191 return -EINVAL;
192
78ad0f7b
FJ		 193 if (valid_domains & NOUVEAU_GEM_DOMAIN_VRAM)
194 valid_flags |= TTM_PL_FLAG_VRAM;
195
196 if (valid_domains & NOUVEAU_GEM_DOMAIN_GART)
197 valid_flags |= TTM_PL_FLAG_TT;
198
199 if ((domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
200 bo->mem.mem_type == TTM_PL_VRAM)
201 pref_flags |= TTM_PL_FLAG_VRAM;
202
203 else if ((domains & NOUVEAU_GEM_DOMAIN_GART) &&
204 bo->mem.mem_type == TTM_PL_TT)
205 pref_flags |= TTM_PL_FLAG_TT;
206
207 else if (domains & NOUVEAU_GEM_DOMAIN_VRAM)
208 pref_flags |= TTM_PL_FLAG_VRAM;
209
210 else
211 pref_flags |= TTM_PL_FLAG_TT;
212
213 nouveau_bo_placement_set(nvbo, pref_flags, valid_flags);
6ee73861 214
6ee73861
BS		 215 return 0;
216}
217
218struct validate_op {
6ee73861
BS		 219 struct list_head vram_list;
220 struct list_head gart_list;
221 struct list_head both_list;
222};
223
224static void
225validate_fini_list(struct list_head *list, struct nouveau_fence *fence)
226{
227 struct list_head *entry, *tmp;
228 struct nouveau_bo *nvbo;
229
230 list_for_each_safe(entry, tmp, list) {
231 nvbo = list_entry(entry, struct nouveau_bo, entry);
232 if (likely(fence)) {
233 struct nouveau_fence *prev_fence;
234
235 spin_lock(&nvbo->bo.lock);
236 prev_fence = nvbo->bo.sync_obj;
237 nvbo->bo.sync_obj = nouveau_fence_ref(fence);
238 spin_unlock(&nvbo->bo.lock);
239 nouveau_fence_unref((void *)&prev_fence);
240 }
241
a1606a95
BS		 242 if (unlikely(nvbo->validate_mapped)) {
243 ttm_bo_kunmap(&nvbo->kmap);
244 nvbo->validate_mapped = false;
245 }
246
6ee73861
BS		 247 list_del(&nvbo->entry);
248 nvbo->reserved_by = NULL;
249 ttm_bo_unreserve(&nvbo->bo);
250 drm_gem_object_unreference(nvbo->gem);
251 }
252}
253
254static void
234896a7 255validate_fini(struct validate_op *op, struct nouveau_fence* fence)
6ee73861 256{
234896a7
LB		 257 validate_fini_list(&op->vram_list, fence);
258 validate_fini_list(&op->gart_list, fence);
259 validate_fini_list(&op->both_list, fence);
6ee73861
BS		 260}
261
262static int
263validate_init(struct nouveau_channel *chan, struct drm_file *file_priv,
264 struct drm_nouveau_gem_pushbuf_bo *pbbo,
265 int nr_buffers, struct validate_op *op)
266{
267 struct drm_device *dev = chan->dev;
268 struct drm_nouveau_private *dev_priv = dev->dev_private;
269 uint32_t sequence;
270 int trycnt = 0;
271 int ret, i;
272
273 sequence = atomic_add_return(1, &dev_priv->ttm.validate_sequence);
274retry:
275 if (++trycnt > 100000) {
276 NV_ERROR(dev, "%s failed and gave up.\n", __func__);
277 return -EINVAL;
278 }
279
280 for (i = 0; i < nr_buffers; i++) {
281 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[i];
282 struct drm_gem_object *gem;
283 struct nouveau_bo *nvbo;
284
285 gem = drm_gem_object_lookup(dev, file_priv, b->handle);
286 if (!gem) {
287 NV_ERROR(dev, "Unknown handle 0x%08x\n", b->handle);
288 validate_fini(op, NULL);
289 return -EINVAL;
290 }
291 nvbo = gem->driver_private;
292
293 if (nvbo->reserved_by && nvbo->reserved_by == file_priv) {
294 NV_ERROR(dev, "multiple instances of buffer %d on "
295 "validation list\n", b->handle);
296 validate_fini(op, NULL);
297 return -EINVAL;
298 }
299
300 ret = ttm_bo_reserve(&nvbo->bo, false, false, true, sequence);
301 if (ret) {
302 validate_fini(op, NULL);
303 if (ret == -EAGAIN)
304 ret = ttm_bo_wait_unreserved(&nvbo->bo, false);
305 drm_gem_object_unreference(gem);
a1606a95
BS		 306 if (ret) {
307 NV_ERROR(dev, "fail reserve\n");
6ee73861 308 return ret;
a1606a95 309 }
6ee73861
BS		 310 goto retry;
311 }
312
a1606a95 313 b->user_priv = (uint64_t)(unsigned long)nvbo;
6ee73861
BS		 314 nvbo->reserved_by = file_priv;
315 nvbo->pbbo_index = i;
316 if ((b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
317 (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART))
318 list_add_tail(&nvbo->entry, &op->both_list);
319 else
320 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM)
321 list_add_tail(&nvbo->entry, &op->vram_list);
322 else
323 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART)
324 list_add_tail(&nvbo->entry, &op->gart_list);
325 else {
326 NV_ERROR(dev, "invalid valid domains: 0x%08x\n",
327 b->valid_domains);
0208843d 328 list_add_tail(&nvbo->entry, &op->both_list);
6ee73861
BS		 329 validate_fini(op, NULL);
330 return -EINVAL;
331 }
332
333 if (unlikely(atomic_read(&nvbo->bo.cpu_writers) > 0)) {
334 validate_fini(op, NULL);
335
336 if (nvbo->cpu_filp == file_priv) {
337 NV_ERROR(dev, "bo %p mapped by process trying "
338 "to validate it!\n", nvbo);
339 return -EINVAL;
340 }
341
342 ret = ttm_bo_wait_cpu(&nvbo->bo, false);
a1606a95
BS		 343 if (ret) {
344 NV_ERROR(dev, "fail wait_cpu\n");
6ee73861 345 return ret;
a1606a95 346 }
6ee73861
BS		 347 goto retry;
348 }
349 }
350
351 return 0;
352}
353
354static int
355validate_list(struct nouveau_channel *chan, struct list_head *list,
356 struct drm_nouveau_gem_pushbuf_bo *pbbo, uint64_t user_pbbo_ptr)
357{
358 struct drm_nouveau_gem_pushbuf_bo __user *upbbo =
359 (void __force __user *)(uintptr_t)user_pbbo_ptr;
a1606a95 360 struct drm_device *dev = chan->dev;
6ee73861
BS		 361 struct nouveau_bo *nvbo;
362 int ret, relocs = 0;
363
364 list_for_each_entry(nvbo, list, entry) {
365 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[nvbo->pbbo_index];
366 struct nouveau_fence *prev_fence = nvbo->bo.sync_obj;
367
368 if (prev_fence && nouveau_fence_channel(prev_fence) != chan) {
369 spin_lock(&nvbo->bo.lock);
370 ret = ttm_bo_wait(&nvbo->bo, false, false, false);
371 spin_unlock(&nvbo->bo.lock);
a1606a95
BS		 372 if (unlikely(ret)) {
373 NV_ERROR(dev, "fail wait other chan\n");
6ee73861 374 return ret;
a1606a95 375 }
6ee73861
BS		 376 }
377
378 ret = nouveau_gem_set_domain(nvbo->gem, b->read_domains,
379 b->write_domains,
380 b->valid_domains);
a1606a95
BS		 381 if (unlikely(ret)) {
382 NV_ERROR(dev, "fail set_domain\n");
6ee73861 383 return ret;
a1606a95 384 }
6ee73861
BS		 385
386 nvbo->channel = chan;
387 ret = ttm_bo_validate(&nvbo->bo, &nvbo->placement,
388 false, false);
389 nvbo->channel = NULL;
a1606a95
BS		 390 if (unlikely(ret)) {
391 NV_ERROR(dev, "fail ttm_validate\n");
6ee73861 392 return ret;
a1606a95 393 }
6ee73861 394
a1606a95 395 if (nvbo->bo.offset == b->presumed.offset &&
6ee73861 396 ((nvbo->bo.mem.mem_type == TTM_PL_VRAM &&
a1606a95 397 b->presumed.domain & NOUVEAU_GEM_DOMAIN_VRAM) ||
6ee73861 398 (nvbo->bo.mem.mem_type == TTM_PL_TT &&
a1606a95 399 b->presumed.domain & NOUVEAU_GEM_DOMAIN_GART)))
6ee73861
BS		 400 continue;
401
402 if (nvbo->bo.mem.mem_type == TTM_PL_TT)
a1606a95 403 b->presumed.domain = NOUVEAU_GEM_DOMAIN_GART;
6ee73861 404 else
a1606a95
BS		 405 b->presumed.domain = NOUVEAU_GEM_DOMAIN_VRAM;
406 b->presumed.offset = nvbo->bo.offset;
407 b->presumed.valid = 0;
6ee73861
BS		 408 relocs++;
409
a1606a95
BS		 410 if (DRM_COPY_TO_USER(&upbbo[nvbo->pbbo_index].presumed,
411 &b->presumed, sizeof(b->presumed)))
6ee73861
BS		 412 return -EFAULT;
413 }
414
415 return relocs;
416}
417
418static int
419nouveau_gem_pushbuf_validate(struct nouveau_channel *chan,
420 struct drm_file *file_priv,
421 struct drm_nouveau_gem_pushbuf_bo *pbbo,
422 uint64_t user_buffers, int nr_buffers,
423 struct validate_op *op, int *apply_relocs)
424{
a1606a95 425 struct drm_device *dev = chan->dev;
6ee73861
BS		 426 int ret, relocs = 0;
427
428 INIT_LIST_HEAD(&op->vram_list);
429 INIT_LIST_HEAD(&op->gart_list);
430 INIT_LIST_HEAD(&op->both_list);
431
6ee73861
BS		 432 if (nr_buffers == 0)
433 return 0;
434
435 ret = validate_init(chan, file_priv, pbbo, nr_buffers, op);
a1606a95
BS		 436 if (unlikely(ret)) {
437 NV_ERROR(dev, "validate_init\n");
6ee73861 438 return ret;
a1606a95 439 }
6ee73861
BS		 440
441 ret = validate_list(chan, &op->vram_list, pbbo, user_buffers);
442 if (unlikely(ret < 0)) {
a1606a95 443 NV_ERROR(dev, "validate vram_list\n");
6ee73861
BS		 444 validate_fini(op, NULL);
445 return ret;
446 }
447 relocs += ret;
448
449 ret = validate_list(chan, &op->gart_list, pbbo, user_buffers);
450 if (unlikely(ret < 0)) {
a1606a95 451 NV_ERROR(dev, "validate gart_list\n");
6ee73861
BS		 452 validate_fini(op, NULL);
453 return ret;
454 }
455 relocs += ret;
456
457 ret = validate_list(chan, &op->both_list, pbbo, user_buffers);
458 if (unlikely(ret < 0)) {
a1606a95 459 NV_ERROR(dev, "validate both_list\n");
6ee73861
BS		 460 validate_fini(op, NULL);
461 return ret;
462 }
463 relocs += ret;
464
465 *apply_relocs = relocs;
466 return 0;
467}
468
469static inline void *
470u_memcpya(uint64_t user, unsigned nmemb, unsigned size)
471{
472 void *mem;
473 void __user *userptr = (void __force __user *)(uintptr_t)user;
474
475 mem = kmalloc(nmemb * size, GFP_KERNEL);
476 if (!mem)
477 return ERR_PTR(-ENOMEM);
478
479 if (DRM_COPY_FROM_USER(mem, userptr, nmemb * size)) {
480 kfree(mem);
481 return ERR_PTR(-EFAULT);
482 }
483
484 return mem;
485}
486
487static int
a1606a95
BS		 488nouveau_gem_pushbuf_reloc_apply(struct drm_device *dev,
489 struct drm_nouveau_gem_pushbuf *req,
490 struct drm_nouveau_gem_pushbuf_bo *bo)
6ee73861
BS		 491{
492 struct drm_nouveau_gem_pushbuf_reloc *reloc = NULL;
12f735b7
LB		 493 int ret = 0;
494 unsigned i;
6ee73861 495
a1606a95 496 reloc = u_memcpya(req->relocs, req->nr_relocs, sizeof(*reloc));
6ee73861
BS		 497 if (IS_ERR(reloc))
498 return PTR_ERR(reloc);
499
a1606a95 500 for (i = 0; i < req->nr_relocs; i++) {
6ee73861
BS		 501 struct drm_nouveau_gem_pushbuf_reloc *r = &reloc[i];
502 struct drm_nouveau_gem_pushbuf_bo *b;
a1606a95 503 struct nouveau_bo *nvbo;
6ee73861
BS		 504 uint32_t data;
505
a1606a95
BS		 506 if (unlikely(r->bo_index > req->nr_buffers)) {
507 NV_ERROR(dev, "reloc bo index invalid\n");
6ee73861
BS		 508 ret = -EINVAL;
509 break;
510 }
511
512 b = &bo[r->bo_index];
a1606a95 513 if (b->presumed.valid)
6ee73861
BS		 514 continue;
515
a1606a95
BS		 516 if (unlikely(r->reloc_bo_index > req->nr_buffers)) {
517 NV_ERROR(dev, "reloc container bo index invalid\n");
518 ret = -EINVAL;
519 break;
520 }
521 nvbo = (void *)(unsigned long)bo[r->reloc_bo_index].user_priv;
522
523 if (unlikely(r->reloc_bo_offset + 4 >
524 nvbo->bo.mem.num_pages << PAGE_SHIFT)) {
525 NV_ERROR(dev, "reloc outside of bo\n");
526 ret = -EINVAL;
527 break;
528 }
529
530 if (!nvbo->kmap.virtual) {
531 ret = ttm_bo_kmap(&nvbo->bo, 0, nvbo->bo.mem.num_pages,
532 &nvbo->kmap);
533 if (ret) {
534 NV_ERROR(dev, "failed kmap for reloc\n");
535 break;
536 }
537 nvbo->validate_mapped = true;
538 }
539
6ee73861 540 if (r->flags & NOUVEAU_GEM_RELOC_LOW)
a1606a95 541 data = b->presumed.offset + r->data;
6ee73861
BS		 542 else
543 if (r->flags & NOUVEAU_GEM_RELOC_HIGH)
a1606a95 544 data = (b->presumed.offset + r->data) >> 32;
6ee73861
BS		 545 else
546 data = r->data;
547
548 if (r->flags & NOUVEAU_GEM_RELOC_OR) {
a1606a95 549 if (b->presumed.domain == NOUVEAU_GEM_DOMAIN_GART)
6ee73861
BS		 550 data |= r->tor;
551 else
552 data |= r->vor;
553 }
554
a1606a95
BS		 555 spin_lock(&nvbo->bo.lock);
556 ret = ttm_bo_wait(&nvbo->bo, false, false, false);
e32b2c88 557 spin_unlock(&nvbo->bo.lock);
a1606a95
BS		 558 if (ret) {
559 NV_ERROR(dev, "reloc wait_idle failed: %d\n", ret);
560 break;
561 }
a1606a95
BS		 562
563 nouveau_bo_wr32(nvbo, r->reloc_bo_offset >> 2, data);
6ee73861
BS		 564 }
565
566 kfree(reloc);
567 return ret;
568}
569
570int
571nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data,
572 struct drm_file *file_priv)
573{
a1606a95 574 struct drm_nouveau_private *dev_priv = dev->dev_private;
6ee73861 575 struct drm_nouveau_gem_pushbuf *req = data;
a1606a95
BS		 576 struct drm_nouveau_gem_pushbuf_push *push;
577 struct drm_nouveau_gem_pushbuf_bo *bo;
6ee73861
BS		 578 struct nouveau_channel *chan;
579 struct validate_op op;
a1606a95
BS		 580 struct nouveau_fence *fence = 0;
581 int i, j, ret = 0, do_reloc = 0;
6ee73861
BS		 582
583 NOUVEAU_CHECK_INITIALISED_WITH_RETURN;
584 NOUVEAU_GET_USER_CHANNEL_WITH_RETURN(req->channel, file_priv, chan);
585
a1606a95
BS		 586 req->vram_available = dev_priv->fb_aper_free;
587 req->gart_available = dev_priv->gart_info.aper_free;
588 if (unlikely(req->nr_push == 0))
589 goto out_next;
6ee73861 590
a1606a95
BS		 591 if (unlikely(req->nr_push > NOUVEAU_GEM_MAX_PUSH)) {
592 NV_ERROR(dev, "pushbuf push count exceeds limit: %d max %d\n",
593 req->nr_push, NOUVEAU_GEM_MAX_PUSH);
594 return -EINVAL;
6ee73861
BS		 595 }
596
a1606a95
BS		 597 if (unlikely(req->nr_buffers > NOUVEAU_GEM_MAX_BUFFERS)) {
598 NV_ERROR(dev, "pushbuf bo count exceeds limit: %d max %d\n",
599 req->nr_buffers, NOUVEAU_GEM_MAX_BUFFERS);
600 return -EINVAL;
6ee73861
BS		 601 }
602
a1606a95
BS		 603 if (unlikely(req->nr_relocs > NOUVEAU_GEM_MAX_RELOCS)) {
604 NV_ERROR(dev, "pushbuf reloc count exceeds limit: %d max %d\n",
605 req->nr_relocs, NOUVEAU_GEM_MAX_RELOCS);
6ee73861
BS		 606 return -EINVAL;
607 }
608
a1606a95
BS		 609 push = u_memcpya(req->push, req->nr_push, sizeof(*push));
610 if (IS_ERR(push))
611 return PTR_ERR(push);
612
6ee73861 613 bo = u_memcpya(req->buffers, req->nr_buffers, sizeof(*bo));
a1606a95
BS		 614 if (IS_ERR(bo)) {
615 kfree(push);
6ee73861 616 return PTR_ERR(bo);
a1606a95 617 }
6ee73861
BS		 618
619 mutex_lock(&dev->struct_mutex);
620
621 /* Validate buffer list */
622 ret = nouveau_gem_pushbuf_validate(chan, file_priv, bo, req->buffers,
623 req->nr_buffers, &op, &do_reloc);
624 if (ret) {
625 NV_ERROR(dev, "validate: %d\n", ret);
626 goto out;
627 }
628
6ee73861
BS		 629 /* Apply any relocations that are required */
630 if (do_reloc) {
a1606a95 631 ret = nouveau_gem_pushbuf_reloc_apply(dev, req, bo);
6ee73861 632 if (ret) {
6ee73861 633 NV_ERROR(dev, "reloc apply: %d\n", ret);
6ee73861
BS		 634 goto out;
635 }
6ee73861 636 }
6ee73861 637
9a391ad8 638 if (chan->dma.ib_max) {
a1606a95 639 ret = nouveau_dma_wait(chan, req->nr_push + 1, 6);
6ee73861 640 if (ret) {
9a391ad8 641 NV_INFO(dev, "nv50cal_space: %d\n", ret);
6ee73861
BS		 642 goto out;
643 }
6ee73861 644
a1606a95
BS		 645 for (i = 0; i < req->nr_push; i++) {
646 struct nouveau_bo *nvbo = (void *)(unsigned long)
647 bo[push[i].bo_index].user_priv;
648
649 nv50_dma_push(chan, nvbo, push[i].offset,
650 push[i].length);
651 }
9a391ad8 652 } else
2ccb04ec 653 if (dev_priv->card_type >= NV_20) {
a1606a95 654 ret = RING_SPACE(chan, req->nr_push * 2);
6ee73861
BS		 655 if (ret) {
656 NV_ERROR(dev, "cal_space: %d\n", ret);
657 goto out;
658 }
a1606a95
BS		 659
660 for (i = 0; i < req->nr_push; i++) {
661 struct nouveau_bo *nvbo = (void *)(unsigned long)
662 bo[push[i].bo_index].user_priv;
663 struct drm_mm_node *mem = nvbo->bo.mem.mm_node;
664
665 OUT_RING(chan, ((mem->start << PAGE_SHIFT) +
666 push[i].offset) | 2);
667 OUT_RING(chan, 0);
668 }
6ee73861 669 } else {
a1606a95 670 ret = RING_SPACE(chan, req->nr_push * (2 + NOUVEAU_DMA_SKIPS));
6ee73861
BS		 671 if (ret) {
672 NV_ERROR(dev, "jmp_space: %d\n", ret);
673 goto out;
674 }
6ee73861 675
a1606a95
BS		 676 for (i = 0; i < req->nr_push; i++) {
677 struct nouveau_bo *nvbo = (void *)(unsigned long)
678 bo[push[i].bo_index].user_priv;
679 struct drm_mm_node *mem = nvbo->bo.mem.mm_node;
680 uint32_t cmd;
681
682 cmd = chan->pushbuf_base + ((chan->dma.cur + 2) << 2);
683 cmd |= 0x20000000;
684 if (unlikely(cmd != req->suffix0)) {
685 if (!nvbo->kmap.virtual) {
686 ret = ttm_bo_kmap(&nvbo->bo, 0,
687 nvbo->bo.mem.
688 num_pages,
689 &nvbo->kmap);
690 if (ret) {
691 WIND_RING(chan);
692 goto out;
693 }
694 nvbo->validate_mapped = true;
695 }
696
697 nouveau_bo_wr32(nvbo, (push[i].offset +
698 push[i].length - 8) / 4, cmd);
699 }
700
701 OUT_RING(chan, ((mem->start << PAGE_SHIFT) +
702 push[i].offset) | 0x20000000);
6ee73861 703 OUT_RING(chan, 0);
a1606a95
BS		 704 for (j = 0; j < NOUVEAU_DMA_SKIPS; j++)
705 OUT_RING(chan, 0);
706 }
6ee73861
BS		 707 }
708
234896a7 709 ret = nouveau_fence_new(chan, &fence, true);
6ee73861
BS		 710 if (ret) {
711 NV_ERROR(dev, "error fencing pushbuf: %d\n", ret);
712 WIND_RING(chan);
713 goto out;
714 }
715
716out:
234896a7
LB		 717 validate_fini(&op, fence);
718 nouveau_fence_unref((void**)&fence);
6ee73861
BS		 719 mutex_unlock(&dev->struct_mutex);
720 kfree(bo);
a1606a95 721 kfree(push);
6ee73861
BS		 722
723out_next:
9a391ad8
BS		 724 if (chan->dma.ib_max) {
725 req->suffix0 = 0x00000000;
726 req->suffix1 = 0x00000000;
727 } else
2ccb04ec 728 if (dev_priv->card_type >= NV_20) {
6ee73861
BS		 729 req->suffix0 = 0x00020000;
730 req->suffix1 = 0x00000000;
731 } else {
732 req->suffix0 = 0x20000000 |
733 (chan->pushbuf_base + ((chan->dma.cur + 2) << 2));
734 req->suffix1 = 0x00000000;
735 }
736
737 return ret;
738}
739
6ee73861
BS		 740static inline uint32_t
741domain_to_ttm(struct nouveau_bo *nvbo, uint32_t domain)
742{
743 uint32_t flags = 0;
744
745 if (domain & NOUVEAU_GEM_DOMAIN_VRAM)
746 flags |= TTM_PL_FLAG_VRAM;
747 if (domain & NOUVEAU_GEM_DOMAIN_GART)
748 flags |= TTM_PL_FLAG_TT;
749
750 return flags;
751}
752
6ee73861
BS		 753int
754nouveau_gem_ioctl_cpu_prep(struct drm_device *dev, void *data,
755 struct drm_file *file_priv)
756{
757 struct drm_nouveau_gem_cpu_prep *req = data;
758 struct drm_gem_object *gem;
759 struct nouveau_bo *nvbo;
760 bool no_wait = !!(req->flags & NOUVEAU_GEM_CPU_PREP_NOWAIT);
761 int ret = -EINVAL;
762
763 NOUVEAU_CHECK_INITIALISED_WITH_RETURN;
764
765 gem = drm_gem_object_lookup(dev, file_priv, req->handle);
766 if (!gem)
767 return ret;
768 nvbo = nouveau_gem_object(gem);
769
770 if (nvbo->cpu_filp) {
771 if (nvbo->cpu_filp == file_priv)
772 goto out;
773
774 ret = ttm_bo_wait_cpu(&nvbo->bo, no_wait);
6ee73861
BS		 775 if (ret)
776 goto out;
777 }
778
779 if (req->flags & NOUVEAU_GEM_CPU_PREP_NOBLOCK) {
f0fbe3eb 780 spin_lock(&nvbo->bo.lock);
6ee73861 781 ret = ttm_bo_wait(&nvbo->bo, false, false, no_wait);
f0fbe3eb 782 spin_unlock(&nvbo->bo.lock);
6ee73861
BS		 783 } else {
784 ret = ttm_bo_synccpu_write_grab(&nvbo->bo, no_wait);
6ee73861
BS		 785 if (ret == 0)
786 nvbo->cpu_filp = file_priv;
787 }
788
789out:
bc9025bd 790 drm_gem_object_unreference_unlocked(gem);
6ee73861
BS		 791 return ret;
792}
793
794int
795nouveau_gem_ioctl_cpu_fini(struct drm_device *dev, void *data,
796 struct drm_file *file_priv)
797{
798 struct drm_nouveau_gem_cpu_prep *req = data;
799 struct drm_gem_object *gem;
800 struct nouveau_bo *nvbo;
801 int ret = -EINVAL;
802
803 NOUVEAU_CHECK_INITIALISED_WITH_RETURN;
804
805 gem = drm_gem_object_lookup(dev, file_priv, req->handle);
806 if (!gem)
807 return ret;
808 nvbo = nouveau_gem_object(gem);
809
810 if (nvbo->cpu_filp != file_priv)
811 goto out;
812 nvbo->cpu_filp = NULL;
813
814 ttm_bo_synccpu_write_release(&nvbo->bo);
815 ret = 0;
816
817out:
bc9025bd 818 drm_gem_object_unreference_unlocked(gem);
6ee73861
BS		 819 return ret;
820}
821
822int
823nouveau_gem_ioctl_info(struct drm_device *dev, void *data,
824 struct drm_file *file_priv)
825{
826 struct drm_nouveau_gem_info *req = data;
827 struct drm_gem_object *gem;
828 int ret;
829
830 NOUVEAU_CHECK_INITIALISED_WITH_RETURN;
831
832 gem = drm_gem_object_lookup(dev, file_priv, req->handle);
833 if (!gem)
834 return -EINVAL;
835
836 ret = nouveau_gem_info(gem, req);
bc9025bd 837 drm_gem_object_unreference_unlocked(gem);
6ee73861
BS		 838 return ret;
839}
840
Linux kernel - Deliverables
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