projects / deliverable / linux.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
drm: extract drm_gem_object_init
[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);
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;
78ad0f7b
FJ		 183 uint32_t domains = valid_domains &
184 (write_domains ? write_domains : read_domains);
185 uint32_t pref_flags = 0, valid_flags = 0;
6ee73861 186
78ad0f7b 187 if (!domains)
6ee73861
BS		 188 return -EINVAL;
189
78ad0f7b
FJ		 190 if (valid_domains & NOUVEAU_GEM_DOMAIN_VRAM)
191 valid_flags |= TTM_PL_FLAG_VRAM;
192
193 if (valid_domains & NOUVEAU_GEM_DOMAIN_GART)
194 valid_flags |= TTM_PL_FLAG_TT;
195
196 if ((domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
197 bo->mem.mem_type == TTM_PL_VRAM)
198 pref_flags |= TTM_PL_FLAG_VRAM;
199
200 else if ((domains & NOUVEAU_GEM_DOMAIN_GART) &&
201 bo->mem.mem_type == TTM_PL_TT)
202 pref_flags |= TTM_PL_FLAG_TT;
203
204 else if (domains & NOUVEAU_GEM_DOMAIN_VRAM)
205 pref_flags |= TTM_PL_FLAG_VRAM;
206
207 else
208 pref_flags |= TTM_PL_FLAG_TT;
209
210 nouveau_bo_placement_set(nvbo, pref_flags, valid_flags);
6ee73861 211
6ee73861
BS		 212 return 0;
213}
214
215struct validate_op {
6ee73861
BS		 216 struct list_head vram_list;
217 struct list_head gart_list;
218 struct list_head both_list;
219};
220
221static void
222validate_fini_list(struct list_head *list, struct nouveau_fence *fence)
223{
224 struct list_head *entry, *tmp;
225 struct nouveau_bo *nvbo;
226
227 list_for_each_safe(entry, tmp, list) {
228 nvbo = list_entry(entry, struct nouveau_bo, entry);
229 if (likely(fence)) {
230 struct nouveau_fence *prev_fence;
231
232 spin_lock(&nvbo->bo.lock);
233 prev_fence = nvbo->bo.sync_obj;
234 nvbo->bo.sync_obj = nouveau_fence_ref(fence);
235 spin_unlock(&nvbo->bo.lock);
236 nouveau_fence_unref((void *)&prev_fence);
237 }
238
a1606a95
BS		 239 if (unlikely(nvbo->validate_mapped)) {
240 ttm_bo_kunmap(&nvbo->kmap);
241 nvbo->validate_mapped = false;
242 }
243
6ee73861
BS		 244 list_del(&nvbo->entry);
245 nvbo->reserved_by = NULL;
246 ttm_bo_unreserve(&nvbo->bo);
247 drm_gem_object_unreference(nvbo->gem);
248 }
249}
250
251static void
234896a7 252validate_fini(struct validate_op *op, struct nouveau_fence* fence)
6ee73861 253{
234896a7
LB		 254 validate_fini_list(&op->vram_list, fence);
255 validate_fini_list(&op->gart_list, fence);
256 validate_fini_list(&op->both_list, fence);
6ee73861
BS		 257}
258
259static int
260validate_init(struct nouveau_channel *chan, struct drm_file *file_priv,
261 struct drm_nouveau_gem_pushbuf_bo *pbbo,
262 int nr_buffers, struct validate_op *op)
263{
264 struct drm_device *dev = chan->dev;
265 struct drm_nouveau_private *dev_priv = dev->dev_private;
266 uint32_t sequence;
267 int trycnt = 0;
268 int ret, i;
269
270 sequence = atomic_add_return(1, &dev_priv->ttm.validate_sequence);
271retry:
272 if (++trycnt > 100000) {
273 NV_ERROR(dev, "%s failed and gave up.\n", __func__);
274 return -EINVAL;
275 }
276
277 for (i = 0; i < nr_buffers; i++) {
278 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[i];
279 struct drm_gem_object *gem;
280 struct nouveau_bo *nvbo;
281
282 gem = drm_gem_object_lookup(dev, file_priv, b->handle);
283 if (!gem) {
284 NV_ERROR(dev, "Unknown handle 0x%08x\n", b->handle);
285 validate_fini(op, NULL);
286 return -EINVAL;
287 }
288 nvbo = gem->driver_private;
289
290 if (nvbo->reserved_by && nvbo->reserved_by == file_priv) {
291 NV_ERROR(dev, "multiple instances of buffer %d on "
292 "validation list\n", b->handle);
293 validate_fini(op, NULL);
294 return -EINVAL;
295 }
296
297 ret = ttm_bo_reserve(&nvbo->bo, false, false, true, sequence);
298 if (ret) {
299 validate_fini(op, NULL);
300 if (ret == -EAGAIN)
301 ret = ttm_bo_wait_unreserved(&nvbo->bo, false);
302 drm_gem_object_unreference(gem);
a1606a95
BS		 303 if (ret) {
304 NV_ERROR(dev, "fail reserve\n");
6ee73861 305 return ret;
a1606a95 306 }
6ee73861
BS		 307 goto retry;
308 }
309
a1606a95 310 b->user_priv = (uint64_t)(unsigned long)nvbo;
6ee73861
BS		 311 nvbo->reserved_by = file_priv;
312 nvbo->pbbo_index = i;
313 if ((b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
314 (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART))
315 list_add_tail(&nvbo->entry, &op->both_list);
316 else
317 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM)
318 list_add_tail(&nvbo->entry, &op->vram_list);
319 else
320 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART)
321 list_add_tail(&nvbo->entry, &op->gart_list);
322 else {
323 NV_ERROR(dev, "invalid valid domains: 0x%08x\n",
324 b->valid_domains);
0208843d 325 list_add_tail(&nvbo->entry, &op->both_list);
6ee73861
BS		 326 validate_fini(op, NULL);
327 return -EINVAL;
328 }
329
330 if (unlikely(atomic_read(&nvbo->bo.cpu_writers) > 0)) {
331 validate_fini(op, NULL);
332
333 if (nvbo->cpu_filp == file_priv) {
334 NV_ERROR(dev, "bo %p mapped by process trying "
335 "to validate it!\n", nvbo);
336 return -EINVAL;
337 }
338
339 ret = ttm_bo_wait_cpu(&nvbo->bo, false);
a1606a95
BS		 340 if (ret) {
341 NV_ERROR(dev, "fail wait_cpu\n");
6ee73861 342 return ret;
a1606a95 343 }
6ee73861
BS		 344 goto retry;
345 }
346 }
347
348 return 0;
349}
350
351static int
352validate_list(struct nouveau_channel *chan, struct list_head *list,
353 struct drm_nouveau_gem_pushbuf_bo *pbbo, uint64_t user_pbbo_ptr)
354{
355 struct drm_nouveau_gem_pushbuf_bo __user *upbbo =
356 (void __force __user *)(uintptr_t)user_pbbo_ptr;
a1606a95 357 struct drm_device *dev = chan->dev;
6ee73861
BS		 358 struct nouveau_bo *nvbo;
359 int ret, relocs = 0;
360
361 list_for_each_entry(nvbo, list, entry) {
362 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[nvbo->pbbo_index];
363 struct nouveau_fence *prev_fence = nvbo->bo.sync_obj;
364
365 if (prev_fence && nouveau_fence_channel(prev_fence) != chan) {
366 spin_lock(&nvbo->bo.lock);
367 ret = ttm_bo_wait(&nvbo->bo, false, false, false);
368 spin_unlock(&nvbo->bo.lock);
a1606a95
BS		 369 if (unlikely(ret)) {
370 NV_ERROR(dev, "fail wait other chan\n");
6ee73861 371 return ret;
a1606a95 372 }
6ee73861
BS		 373 }
374
375 ret = nouveau_gem_set_domain(nvbo->gem, b->read_domains,
376 b->write_domains,
377 b->valid_domains);
a1606a95
BS		 378 if (unlikely(ret)) {
379 NV_ERROR(dev, "fail set_domain\n");
6ee73861 380 return ret;
a1606a95 381 }
6ee73861
BS		 382
383 nvbo->channel = chan;
384 ret = ttm_bo_validate(&nvbo->bo, &nvbo->placement,
385 false, false);
386 nvbo->channel = NULL;
a1606a95
BS		 387 if (unlikely(ret)) {
388 NV_ERROR(dev, "fail ttm_validate\n");
6ee73861 389 return ret;
a1606a95 390 }
6ee73861 391
a1606a95 392 if (nvbo->bo.offset == b->presumed.offset &&
6ee73861 393 ((nvbo->bo.mem.mem_type == TTM_PL_VRAM &&
a1606a95 394 b->presumed.domain & NOUVEAU_GEM_DOMAIN_VRAM) ||
6ee73861 395 (nvbo->bo.mem.mem_type == TTM_PL_TT &&
a1606a95 396 b->presumed.domain & NOUVEAU_GEM_DOMAIN_GART)))
6ee73861
BS		 397 continue;
398
399 if (nvbo->bo.mem.mem_type == TTM_PL_TT)
a1606a95 400 b->presumed.domain = NOUVEAU_GEM_DOMAIN_GART;
6ee73861 401 else
a1606a95
BS		 402 b->presumed.domain = NOUVEAU_GEM_DOMAIN_VRAM;
403 b->presumed.offset = nvbo->bo.offset;
404 b->presumed.valid = 0;
6ee73861
BS		 405 relocs++;
406
a1606a95
BS		 407 if (DRM_COPY_TO_USER(&upbbo[nvbo->pbbo_index].presumed,
408 &b->presumed, sizeof(b->presumed)))
6ee73861
BS		 409 return -EFAULT;
410 }
411
412 return relocs;
413}
414
415static int
416nouveau_gem_pushbuf_validate(struct nouveau_channel *chan,
417 struct drm_file *file_priv,
418 struct drm_nouveau_gem_pushbuf_bo *pbbo,
419 uint64_t user_buffers, int nr_buffers,
420 struct validate_op *op, int *apply_relocs)
421{
a1606a95 422 struct drm_device *dev = chan->dev;
6ee73861
BS		 423 int ret, relocs = 0;
424
425 INIT_LIST_HEAD(&op->vram_list);
426 INIT_LIST_HEAD(&op->gart_list);
427 INIT_LIST_HEAD(&op->both_list);
428
6ee73861
BS		 429 if (nr_buffers == 0)
430 return 0;
431
432 ret = validate_init(chan, file_priv, pbbo, nr_buffers, op);
a1606a95
BS		 433 if (unlikely(ret)) {
434 NV_ERROR(dev, "validate_init\n");
6ee73861 435 return ret;
a1606a95 436 }
6ee73861
BS		 437
438 ret = validate_list(chan, &op->vram_list, pbbo, user_buffers);
439 if (unlikely(ret < 0)) {
a1606a95 440 NV_ERROR(dev, "validate vram_list\n");
6ee73861
BS		 441 validate_fini(op, NULL);
442 return ret;
443 }
444 relocs += ret;
445
446 ret = validate_list(chan, &op->gart_list, pbbo, user_buffers);
447 if (unlikely(ret < 0)) {
a1606a95 448 NV_ERROR(dev, "validate gart_list\n");
6ee73861
BS		 449 validate_fini(op, NULL);
450 return ret;
451 }
452 relocs += ret;
453
454 ret = validate_list(chan, &op->both_list, pbbo, user_buffers);
455 if (unlikely(ret < 0)) {
a1606a95 456 NV_ERROR(dev, "validate both_list\n");
6ee73861
BS		 457 validate_fini(op, NULL);
458 return ret;
459 }
460 relocs += ret;
461
462 *apply_relocs = relocs;
463 return 0;
464}
465
466static inline void *
467u_memcpya(uint64_t user, unsigned nmemb, unsigned size)
468{
469 void *mem;
470 void __user *userptr = (void __force __user *)(uintptr_t)user;
471
472 mem = kmalloc(nmemb * size, GFP_KERNEL);
473 if (!mem)
474 return ERR_PTR(-ENOMEM);
475
476 if (DRM_COPY_FROM_USER(mem, userptr, nmemb * size)) {
477 kfree(mem);
478 return ERR_PTR(-EFAULT);
479 }
480
481 return mem;
482}
483
484static int
a1606a95
BS		 485nouveau_gem_pushbuf_reloc_apply(struct drm_device *dev,
486 struct drm_nouveau_gem_pushbuf *req,
487 struct drm_nouveau_gem_pushbuf_bo *bo)
6ee73861
BS		 488{
489 struct drm_nouveau_gem_pushbuf_reloc *reloc = NULL;
12f735b7
LB		 490 int ret = 0;
491 unsigned i;
6ee73861 492
a1606a95 493 reloc = u_memcpya(req->relocs, req->nr_relocs, sizeof(*reloc));
6ee73861
BS		 494 if (IS_ERR(reloc))
495 return PTR_ERR(reloc);
496
a1606a95 497 for (i = 0; i < req->nr_relocs; i++) {
6ee73861
BS		 498 struct drm_nouveau_gem_pushbuf_reloc *r = &reloc[i];
499 struct drm_nouveau_gem_pushbuf_bo *b;
a1606a95 500 struct nouveau_bo *nvbo;
6ee73861
BS		 501 uint32_t data;
502
a1606a95
BS		 503 if (unlikely(r->bo_index > req->nr_buffers)) {
504 NV_ERROR(dev, "reloc bo index invalid\n");
6ee73861
BS		 505 ret = -EINVAL;
506 break;
507 }
508
509 b = &bo[r->bo_index];
a1606a95 510 if (b->presumed.valid)
6ee73861
BS		 511 continue;
512
a1606a95
BS		 513 if (unlikely(r->reloc_bo_index > req->nr_buffers)) {
514 NV_ERROR(dev, "reloc container bo index invalid\n");
515 ret = -EINVAL;
516 break;
517 }
518 nvbo = (void *)(unsigned long)bo[r->reloc_bo_index].user_priv;
519
520 if (unlikely(r->reloc_bo_offset + 4 >
521 nvbo->bo.mem.num_pages << PAGE_SHIFT)) {
522 NV_ERROR(dev, "reloc outside of bo\n");
523 ret = -EINVAL;
524 break;
525 }
526
527 if (!nvbo->kmap.virtual) {
528 ret = ttm_bo_kmap(&nvbo->bo, 0, nvbo->bo.mem.num_pages,
529 &nvbo->kmap);
530 if (ret) {
531 NV_ERROR(dev, "failed kmap for reloc\n");
532 break;
533 }
534 nvbo->validate_mapped = true;
535 }
536
6ee73861 537 if (r->flags & NOUVEAU_GEM_RELOC_LOW)
a1606a95 538 data = b->presumed.offset + r->data;
6ee73861
BS		 539 else
540 if (r->flags & NOUVEAU_GEM_RELOC_HIGH)
a1606a95 541 data = (b->presumed.offset + r->data) >> 32;
6ee73861
BS		 542 else
543 data = r->data;
544
545 if (r->flags & NOUVEAU_GEM_RELOC_OR) {
a1606a95 546 if (b->presumed.domain == NOUVEAU_GEM_DOMAIN_GART)
6ee73861
BS		 547 data |= r->tor;
548 else
549 data |= r->vor;
550 }
551
a1606a95
BS		 552 spin_lock(&nvbo->bo.lock);
553 ret = ttm_bo_wait(&nvbo->bo, false, false, false);
e32b2c88 554 spin_unlock(&nvbo->bo.lock);
a1606a95
BS		 555 if (ret) {
556 NV_ERROR(dev, "reloc wait_idle failed: %d\n", ret);
557 break;
558 }
a1606a95
BS		 559
560 nouveau_bo_wr32(nvbo, r->reloc_bo_offset >> 2, data);
6ee73861
BS		 561 }
562
563 kfree(reloc);
564 return ret;
565}
566
567int
568nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data,
569 struct drm_file *file_priv)
570{
a1606a95 571 struct drm_nouveau_private *dev_priv = dev->dev_private;
6ee73861 572 struct drm_nouveau_gem_pushbuf *req = data;
a1606a95
BS		 573 struct drm_nouveau_gem_pushbuf_push *push;
574 struct drm_nouveau_gem_pushbuf_bo *bo;
6ee73861
BS		 575 struct nouveau_channel *chan;
576 struct validate_op op;
a1606a95
BS		 577 struct nouveau_fence *fence = 0;
578 int i, j, ret = 0, do_reloc = 0;
6ee73861
BS		 579
580 NOUVEAU_CHECK_INITIALISED_WITH_RETURN;
581 NOUVEAU_GET_USER_CHANNEL_WITH_RETURN(req->channel, file_priv, chan);
582
a1606a95
BS		 583 req->vram_available = dev_priv->fb_aper_free;
584 req->gart_available = dev_priv->gart_info.aper_free;
585 if (unlikely(req->nr_push == 0))
586 goto out_next;
6ee73861 587
a1606a95
BS		 588 if (unlikely(req->nr_push > NOUVEAU_GEM_MAX_PUSH)) {
589 NV_ERROR(dev, "pushbuf push count exceeds limit: %d max %d\n",
590 req->nr_push, NOUVEAU_GEM_MAX_PUSH);
591 return -EINVAL;
6ee73861
BS		 592 }
593
a1606a95
BS		 594 if (unlikely(req->nr_buffers > NOUVEAU_GEM_MAX_BUFFERS)) {
595 NV_ERROR(dev, "pushbuf bo count exceeds limit: %d max %d\n",
596 req->nr_buffers, NOUVEAU_GEM_MAX_BUFFERS);
597 return -EINVAL;
6ee73861
BS		 598 }
599
a1606a95
BS		 600 if (unlikely(req->nr_relocs > NOUVEAU_GEM_MAX_RELOCS)) {
601 NV_ERROR(dev, "pushbuf reloc count exceeds limit: %d max %d\n",
602 req->nr_relocs, NOUVEAU_GEM_MAX_RELOCS);
6ee73861
BS		 603 return -EINVAL;
604 }
605
a1606a95
BS		 606 push = u_memcpya(req->push, req->nr_push, sizeof(*push));
607 if (IS_ERR(push))
608 return PTR_ERR(push);
609
6ee73861 610 bo = u_memcpya(req->buffers, req->nr_buffers, sizeof(*bo));
a1606a95
BS		 611 if (IS_ERR(bo)) {
612 kfree(push);
6ee73861 613 return PTR_ERR(bo);
a1606a95 614 }
6ee73861
BS		 615
616 mutex_lock(&dev->struct_mutex);
617
618 /* Validate buffer list */
619 ret = nouveau_gem_pushbuf_validate(chan, file_priv, bo, req->buffers,
620 req->nr_buffers, &op, &do_reloc);
621 if (ret) {
622 NV_ERROR(dev, "validate: %d\n", ret);
623 goto out;
624 }
625
6ee73861
BS		 626 /* Apply any relocations that are required */
627 if (do_reloc) {
a1606a95 628 ret = nouveau_gem_pushbuf_reloc_apply(dev, req, bo);
6ee73861 629 if (ret) {
6ee73861 630 NV_ERROR(dev, "reloc apply: %d\n", ret);
6ee73861
BS		 631 goto out;
632 }
6ee73861 633 }
6ee73861 634
9a391ad8 635 if (chan->dma.ib_max) {
a1606a95 636 ret = nouveau_dma_wait(chan, req->nr_push + 1, 6);
6ee73861 637 if (ret) {
9a391ad8 638 NV_INFO(dev, "nv50cal_space: %d\n", ret);
6ee73861
BS		 639 goto out;
640 }
6ee73861 641
a1606a95
BS		 642 for (i = 0; i < req->nr_push; i++) {
643 struct nouveau_bo *nvbo = (void *)(unsigned long)
644 bo[push[i].bo_index].user_priv;
645
646 nv50_dma_push(chan, nvbo, push[i].offset,
647 push[i].length);
648 }
9a391ad8 649 } else
2ccb04ec 650 if (dev_priv->card_type >= NV_20) {
a1606a95 651 ret = RING_SPACE(chan, req->nr_push * 2);
6ee73861
BS		 652 if (ret) {
653 NV_ERROR(dev, "cal_space: %d\n", ret);
654 goto out;
655 }
a1606a95
BS		 656
657 for (i = 0; i < req->nr_push; i++) {
658 struct nouveau_bo *nvbo = (void *)(unsigned long)
659 bo[push[i].bo_index].user_priv;
660 struct drm_mm_node *mem = nvbo->bo.mem.mm_node;
661
662 OUT_RING(chan, ((mem->start << PAGE_SHIFT) +
663 push[i].offset) | 2);
664 OUT_RING(chan, 0);
665 }
6ee73861 666 } else {
a1606a95 667 ret = RING_SPACE(chan, req->nr_push * (2 + NOUVEAU_DMA_SKIPS));
6ee73861
BS		 668 if (ret) {
669 NV_ERROR(dev, "jmp_space: %d\n", ret);
670 goto out;
671 }
6ee73861 672
a1606a95
BS		 673 for (i = 0; i < req->nr_push; i++) {
674 struct nouveau_bo *nvbo = (void *)(unsigned long)
675 bo[push[i].bo_index].user_priv;
676 struct drm_mm_node *mem = nvbo->bo.mem.mm_node;
677 uint32_t cmd;
678
679 cmd = chan->pushbuf_base + ((chan->dma.cur + 2) << 2);
680 cmd |= 0x20000000;
681 if (unlikely(cmd != req->suffix0)) {
682 if (!nvbo->kmap.virtual) {
683 ret = ttm_bo_kmap(&nvbo->bo, 0,
684 nvbo->bo.mem.
685 num_pages,
686 &nvbo->kmap);
687 if (ret) {
688 WIND_RING(chan);
689 goto out;
690 }
691 nvbo->validate_mapped = true;
692 }
693
694 nouveau_bo_wr32(nvbo, (push[i].offset +
695 push[i].length - 8) / 4, cmd);
696 }
697
698 OUT_RING(chan, ((mem->start << PAGE_SHIFT) +
699 push[i].offset) | 0x20000000);
6ee73861 700 OUT_RING(chan, 0);
a1606a95
BS		 701 for (j = 0; j < NOUVEAU_DMA_SKIPS; j++)
702 OUT_RING(chan, 0);
703 }
6ee73861
BS		 704 }
705
234896a7 706 ret = nouveau_fence_new(chan, &fence, true);
6ee73861
BS		 707 if (ret) {
708 NV_ERROR(dev, "error fencing pushbuf: %d\n", ret);
709 WIND_RING(chan);
710 goto out;
711 }
712
713out:
234896a7
LB		 714 validate_fini(&op, fence);
715 nouveau_fence_unref((void**)&fence);
6ee73861
BS		 716 mutex_unlock(&dev->struct_mutex);
717 kfree(bo);
a1606a95 718 kfree(push);
6ee73861
BS		 719
720out_next:
9a391ad8
BS		 721 if (chan->dma.ib_max) {
722 req->suffix0 = 0x00000000;
723 req->suffix1 = 0x00000000;
724 } else
2ccb04ec 725 if (dev_priv->card_type >= NV_20) {
6ee73861
BS		 726 req->suffix0 = 0x00020000;
727 req->suffix1 = 0x00000000;
728 } else {
729 req->suffix0 = 0x20000000 |
730 (chan->pushbuf_base + ((chan->dma.cur + 2) << 2));
731 req->suffix1 = 0x00000000;
732 }
733
734 return ret;
735}
736
6ee73861
BS		 737static inline uint32_t
738domain_to_ttm(struct nouveau_bo *nvbo, uint32_t domain)
739{
740 uint32_t flags = 0;
741
742 if (domain & NOUVEAU_GEM_DOMAIN_VRAM)
743 flags |= TTM_PL_FLAG_VRAM;
744 if (domain & NOUVEAU_GEM_DOMAIN_GART)
745 flags |= TTM_PL_FLAG_TT;
746
747 return flags;
748}
749
6ee73861
BS		 750int
751nouveau_gem_ioctl_cpu_prep(struct drm_device *dev, void *data,
752 struct drm_file *file_priv)
753{
754 struct drm_nouveau_gem_cpu_prep *req = data;
755 struct drm_gem_object *gem;
756 struct nouveau_bo *nvbo;
757 bool no_wait = !!(req->flags & NOUVEAU_GEM_CPU_PREP_NOWAIT);
758 int ret = -EINVAL;
759
760 NOUVEAU_CHECK_INITIALISED_WITH_RETURN;
761
762 gem = drm_gem_object_lookup(dev, file_priv, req->handle);
763 if (!gem)
764 return ret;
765 nvbo = nouveau_gem_object(gem);
766
767 if (nvbo->cpu_filp) {
768 if (nvbo->cpu_filp == file_priv)
769 goto out;
770
771 ret = ttm_bo_wait_cpu(&nvbo->bo, no_wait);
6ee73861
BS		 772 if (ret)
773 goto out;
774 }
775
776 if (req->flags & NOUVEAU_GEM_CPU_PREP_NOBLOCK) {
f0fbe3eb 777 spin_lock(&nvbo->bo.lock);
6ee73861 778 ret = ttm_bo_wait(&nvbo->bo, false, false, no_wait);
f0fbe3eb 779 spin_unlock(&nvbo->bo.lock);
6ee73861
BS		 780 } else {
781 ret = ttm_bo_synccpu_write_grab(&nvbo->bo, no_wait);
6ee73861
BS		 782 if (ret == 0)
783 nvbo->cpu_filp = file_priv;
784 }
785
786out:
bc9025bd 787 drm_gem_object_unreference_unlocked(gem);
6ee73861
BS		 788 return ret;
789}
790
791int
792nouveau_gem_ioctl_cpu_fini(struct drm_device *dev, void *data,
793 struct drm_file *file_priv)
794{
795 struct drm_nouveau_gem_cpu_prep *req = data;
796 struct drm_gem_object *gem;
797 struct nouveau_bo *nvbo;
798 int ret = -EINVAL;
799
800 NOUVEAU_CHECK_INITIALISED_WITH_RETURN;
801
802 gem = drm_gem_object_lookup(dev, file_priv, req->handle);
803 if (!gem)
804 return ret;
805 nvbo = nouveau_gem_object(gem);
806
807 if (nvbo->cpu_filp != file_priv)
808 goto out;
809 nvbo->cpu_filp = NULL;
810
811 ttm_bo_synccpu_write_release(&nvbo->bo);
812 ret = 0;
813
814out:
bc9025bd 815 drm_gem_object_unreference_unlocked(gem);
6ee73861
BS		 816 return ret;
817}
818
819int
820nouveau_gem_ioctl_info(struct drm_device *dev, void *data,
821 struct drm_file *file_priv)
822{
823 struct drm_nouveau_gem_info *req = data;
824 struct drm_gem_object *gem;
825 int ret;
826
827 NOUVEAU_CHECK_INITIALISED_WITH_RETURN;
828
829 gem = drm_gem_object_lookup(dev, file_priv, req->handle);
830 if (!gem)
831 return -EINVAL;
832
833 ret = nouveau_gem_info(gem, req);
bc9025bd 834 drm_gem_object_unreference_unlocked(gem);
6ee73861
BS		 835 return ret;
836}
837
Linux kernel - Deliverables
This page took 0.083881 seconds and 5 git commands to generate.