2 * Copyright (C) 2008 Ben Skeggs.
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:
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.
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.
29 #include "nouveau_drv.h"
30 #include "nouveau_drm.h"
31 #include "nouveau_dma.h"
33 #define nouveau_gem_pushbuf_sync(chan) 0
36 nouveau_gem_object_new(struct drm_gem_object *gem)
42 nouveau_gem_object_del(struct drm_gem_object *gem)
44 struct nouveau_bo *nvbo = gem->driver_private;
45 struct ttm_buffer_object *bo = &nvbo->bo;
51 if (unlikely(nvbo->cpu_filp))
52 ttm_bo_synccpu_write_release(bo);
54 if (unlikely(nvbo->pin_refcnt)) {
56 nouveau_bo_unpin(nvbo);
61 drm_gem_object_release(gem);
66 nouveau_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)
71 struct nouveau_bo *nvbo;
74 ret = nouveau_bo_new(dev, chan, size, align, flags, tile_mode,
75 tile_flags, no_vm, mappable, pnvbo);
80 nvbo->gem = drm_gem_object_alloc(dev, nvbo->bo.mem.size);
82 nouveau_bo_ref(NULL, pnvbo);
86 nvbo->bo.persistant_swap_storage = nvbo->gem->filp;
87 nvbo->gem->driver_private = nvbo;
92 nouveau_gem_info(struct drm_gem_object *gem, struct drm_nouveau_gem_info *rep)
94 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
96 if (nvbo->bo.mem.mem_type == TTM_PL_TT)
97 rep->domain = NOUVEAU_GEM_DOMAIN_GART;
99 rep->domain = NOUVEAU_GEM_DOMAIN_VRAM;
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;
110 nouveau_gem_tile_flags_valid(struct drm_device *dev, uint32_t tile_flags) {
111 switch (tile_flags) {
122 NV_ERROR(dev, "bad page flags: 0x%08x\n", tile_flags);
130 nouveau_gem_ioctl_new(struct drm_device *dev, void *data,
131 struct drm_file *file_priv)
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;
140 if (unlikely(dev_priv->ttm.bdev.dev_mapping == NULL))
141 dev_priv->ttm.bdev.dev_mapping = dev_priv->dev->dev_mapping;
143 if (req->channel_hint) {
144 NOUVEAU_GET_USER_CHANNEL_WITH_RETURN(req->channel_hint,
148 if (req->info.domain & NOUVEAU_GEM_DOMAIN_VRAM)
149 flags |= TTM_PL_FLAG_VRAM;
150 if (req->info.domain & NOUVEAU_GEM_DOMAIN_GART)
151 flags |= TTM_PL_FLAG_TT;
152 if (!flags || req->info.domain & NOUVEAU_GEM_DOMAIN_CPU)
153 flags |= TTM_PL_FLAG_SYSTEM;
155 if (!nouveau_gem_tile_flags_valid(dev, req->info.tile_flags))
158 ret = nouveau_gem_new(dev, chan, req->info.size, req->align, flags,
159 req->info.tile_mode, req->info.tile_flags, false,
160 (req->info.domain & NOUVEAU_GEM_DOMAIN_MAPPABLE),
165 ret = nouveau_gem_info(nvbo->gem, &req->info);
169 ret = drm_gem_handle_create(file_priv, nvbo->gem, &req->info.handle);
170 /* drop reference from allocate - handle holds it now */
171 drm_gem_object_unreference_unlocked(nvbo->gem);
177 nouveau_gem_set_domain(struct drm_gem_object *gem, uint32_t read_domains,
178 uint32_t write_domains, uint32_t valid_domains)
180 struct nouveau_bo *nvbo = gem->driver_private;
181 struct ttm_buffer_object *bo = &nvbo->bo;
182 uint32_t domains = valid_domains &
183 (write_domains ? write_domains : read_domains);
184 uint32_t pref_flags = 0, valid_flags = 0;
189 if (valid_domains & NOUVEAU_GEM_DOMAIN_VRAM)
190 valid_flags |= TTM_PL_FLAG_VRAM;
192 if (valid_domains & NOUVEAU_GEM_DOMAIN_GART)
193 valid_flags |= TTM_PL_FLAG_TT;
195 if ((domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
196 bo->mem.mem_type == TTM_PL_VRAM)
197 pref_flags |= TTM_PL_FLAG_VRAM;
199 else if ((domains & NOUVEAU_GEM_DOMAIN_GART) &&
200 bo->mem.mem_type == TTM_PL_TT)
201 pref_flags |= TTM_PL_FLAG_TT;
203 else if (domains & NOUVEAU_GEM_DOMAIN_VRAM)
204 pref_flags |= TTM_PL_FLAG_VRAM;
207 pref_flags |= TTM_PL_FLAG_TT;
209 nouveau_bo_placement_set(nvbo, pref_flags, valid_flags);
215 struct list_head vram_list;
216 struct list_head gart_list;
217 struct list_head both_list;
221 validate_fini_list(struct list_head *list, struct nouveau_fence *fence)
223 struct list_head *entry, *tmp;
224 struct nouveau_bo *nvbo;
226 list_for_each_safe(entry, tmp, list) {
227 nvbo = list_entry(entry, struct nouveau_bo, entry);
229 struct nouveau_fence *prev_fence;
231 spin_lock(&nvbo->bo.lock);
232 prev_fence = nvbo->bo.sync_obj;
233 nvbo->bo.sync_obj = nouveau_fence_ref(fence);
234 spin_unlock(&nvbo->bo.lock);
235 nouveau_fence_unref((void *)&prev_fence);
238 if (unlikely(nvbo->validate_mapped)) {
239 ttm_bo_kunmap(&nvbo->kmap);
240 nvbo->validate_mapped = false;
243 list_del(&nvbo->entry);
244 nvbo->reserved_by = NULL;
245 ttm_bo_unreserve(&nvbo->bo);
246 drm_gem_object_unreference_unlocked(nvbo->gem);
251 validate_fini(struct validate_op *op, struct nouveau_fence* fence)
253 validate_fini_list(&op->vram_list, fence);
254 validate_fini_list(&op->gart_list, fence);
255 validate_fini_list(&op->both_list, fence);
259 validate_init(struct nouveau_channel *chan, struct drm_file *file_priv,
260 struct drm_nouveau_gem_pushbuf_bo *pbbo,
261 int nr_buffers, struct validate_op *op)
263 struct drm_device *dev = chan->dev;
264 struct drm_nouveau_private *dev_priv = dev->dev_private;
269 sequence = atomic_add_return(1, &dev_priv->ttm.validate_sequence);
271 if (++trycnt > 100000) {
272 NV_ERROR(dev, "%s failed and gave up.\n", __func__);
276 for (i = 0; i < nr_buffers; i++) {
277 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[i];
278 struct drm_gem_object *gem;
279 struct nouveau_bo *nvbo;
281 gem = drm_gem_object_lookup(dev, file_priv, b->handle);
283 NV_ERROR(dev, "Unknown handle 0x%08x\n", b->handle);
284 validate_fini(op, NULL);
287 nvbo = gem->driver_private;
289 if (nvbo->reserved_by && nvbo->reserved_by == file_priv) {
290 NV_ERROR(dev, "multiple instances of buffer %d on "
291 "validation list\n", b->handle);
292 validate_fini(op, NULL);
296 ret = ttm_bo_reserve(&nvbo->bo, false, false, true, sequence);
298 validate_fini(op, NULL);
300 ret = ttm_bo_wait_unreserved(&nvbo->bo, false);
301 drm_gem_object_unreference_unlocked(gem);
303 NV_ERROR(dev, "fail reserve\n");
309 b->user_priv = (uint64_t)(unsigned long)nvbo;
310 nvbo->reserved_by = file_priv;
311 nvbo->pbbo_index = i;
312 if ((b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
313 (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART))
314 list_add_tail(&nvbo->entry, &op->both_list);
316 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM)
317 list_add_tail(&nvbo->entry, &op->vram_list);
319 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART)
320 list_add_tail(&nvbo->entry, &op->gart_list);
322 NV_ERROR(dev, "invalid valid domains: 0x%08x\n",
324 list_add_tail(&nvbo->entry, &op->both_list);
325 validate_fini(op, NULL);
329 if (unlikely(atomic_read(&nvbo->bo.cpu_writers) > 0)) {
330 validate_fini(op, NULL);
332 if (nvbo->cpu_filp == file_priv) {
333 NV_ERROR(dev, "bo %p mapped by process trying "
334 "to validate it!\n", nvbo);
338 mutex_unlock(&drm_global_mutex);
339 ret = ttm_bo_wait_cpu(&nvbo->bo, false);
340 mutex_lock(&drm_global_mutex);
342 NV_ERROR(dev, "fail wait_cpu\n");
353 validate_list(struct nouveau_channel *chan, struct list_head *list,
354 struct drm_nouveau_gem_pushbuf_bo *pbbo, uint64_t user_pbbo_ptr)
356 struct drm_nouveau_gem_pushbuf_bo __user *upbbo =
357 (void __force __user *)(uintptr_t)user_pbbo_ptr;
358 struct drm_device *dev = chan->dev;
359 struct nouveau_bo *nvbo;
362 list_for_each_entry(nvbo, list, entry) {
363 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[nvbo->pbbo_index];
365 ret = nouveau_fence_sync(nvbo->bo.sync_obj, chan);
367 NV_ERROR(dev, "fail pre-validate sync\n");
371 ret = nouveau_gem_set_domain(nvbo->gem, b->read_domains,
375 NV_ERROR(dev, "fail set_domain\n");
379 nvbo->channel = (b->read_domains & (1 << 31)) ? NULL : chan;
380 ret = ttm_bo_validate(&nvbo->bo, &nvbo->placement,
381 false, false, false);
382 nvbo->channel = NULL;
384 NV_ERROR(dev, "fail ttm_validate\n");
388 ret = nouveau_fence_sync(nvbo->bo.sync_obj, chan);
390 NV_ERROR(dev, "fail post-validate sync\n");
394 if (nvbo->bo.offset == b->presumed.offset &&
395 ((nvbo->bo.mem.mem_type == TTM_PL_VRAM &&
396 b->presumed.domain & NOUVEAU_GEM_DOMAIN_VRAM) ||
397 (nvbo->bo.mem.mem_type == TTM_PL_TT &&
398 b->presumed.domain & NOUVEAU_GEM_DOMAIN_GART)))
401 if (nvbo->bo.mem.mem_type == TTM_PL_TT)
402 b->presumed.domain = NOUVEAU_GEM_DOMAIN_GART;
404 b->presumed.domain = NOUVEAU_GEM_DOMAIN_VRAM;
405 b->presumed.offset = nvbo->bo.offset;
406 b->presumed.valid = 0;
409 if (DRM_COPY_TO_USER(&upbbo[nvbo->pbbo_index].presumed,
410 &b->presumed, sizeof(b->presumed)))
418 nouveau_gem_pushbuf_validate(struct nouveau_channel *chan,
419 struct drm_file *file_priv,
420 struct drm_nouveau_gem_pushbuf_bo *pbbo,
421 uint64_t user_buffers, int nr_buffers,
422 struct validate_op *op, int *apply_relocs)
424 struct drm_device *dev = chan->dev;
427 INIT_LIST_HEAD(&op->vram_list);
428 INIT_LIST_HEAD(&op->gart_list);
429 INIT_LIST_HEAD(&op->both_list);
434 ret = validate_init(chan, file_priv, pbbo, nr_buffers, op);
436 NV_ERROR(dev, "validate_init\n");
440 ret = validate_list(chan, &op->vram_list, pbbo, user_buffers);
441 if (unlikely(ret < 0)) {
442 NV_ERROR(dev, "validate vram_list\n");
443 validate_fini(op, NULL);
448 ret = validate_list(chan, &op->gart_list, pbbo, user_buffers);
449 if (unlikely(ret < 0)) {
450 NV_ERROR(dev, "validate gart_list\n");
451 validate_fini(op, NULL);
456 ret = validate_list(chan, &op->both_list, pbbo, user_buffers);
457 if (unlikely(ret < 0)) {
458 NV_ERROR(dev, "validate both_list\n");
459 validate_fini(op, NULL);
464 *apply_relocs = relocs;
469 u_memcpya(uint64_t user, unsigned nmemb, unsigned size)
472 void __user *userptr = (void __force __user *)(uintptr_t)user;
474 mem = kmalloc(nmemb * size, GFP_KERNEL);
476 return ERR_PTR(-ENOMEM);
478 if (DRM_COPY_FROM_USER(mem, userptr, nmemb * size)) {
480 return ERR_PTR(-EFAULT);
487 nouveau_gem_pushbuf_reloc_apply(struct drm_device *dev,
488 struct drm_nouveau_gem_pushbuf *req,
489 struct drm_nouveau_gem_pushbuf_bo *bo)
491 struct drm_nouveau_gem_pushbuf_reloc *reloc = NULL;
495 reloc = u_memcpya(req->relocs, req->nr_relocs, sizeof(*reloc));
497 return PTR_ERR(reloc);
499 for (i = 0; i < req->nr_relocs; i++) {
500 struct drm_nouveau_gem_pushbuf_reloc *r = &reloc[i];
501 struct drm_nouveau_gem_pushbuf_bo *b;
502 struct nouveau_bo *nvbo;
505 if (unlikely(r->bo_index > req->nr_buffers)) {
506 NV_ERROR(dev, "reloc bo index invalid\n");
511 b = &bo[r->bo_index];
512 if (b->presumed.valid)
515 if (unlikely(r->reloc_bo_index > req->nr_buffers)) {
516 NV_ERROR(dev, "reloc container bo index invalid\n");
520 nvbo = (void *)(unsigned long)bo[r->reloc_bo_index].user_priv;
522 if (unlikely(r->reloc_bo_offset + 4 >
523 nvbo->bo.mem.num_pages << PAGE_SHIFT)) {
524 NV_ERROR(dev, "reloc outside of bo\n");
529 if (!nvbo->kmap.virtual) {
530 ret = ttm_bo_kmap(&nvbo->bo, 0, nvbo->bo.mem.num_pages,
533 NV_ERROR(dev, "failed kmap for reloc\n");
536 nvbo->validate_mapped = true;
539 if (r->flags & NOUVEAU_GEM_RELOC_LOW)
540 data = b->presumed.offset + r->data;
542 if (r->flags & NOUVEAU_GEM_RELOC_HIGH)
543 data = (b->presumed.offset + r->data) >> 32;
547 if (r->flags & NOUVEAU_GEM_RELOC_OR) {
548 if (b->presumed.domain == NOUVEAU_GEM_DOMAIN_GART)
554 spin_lock(&nvbo->bo.lock);
555 ret = ttm_bo_wait(&nvbo->bo, false, false, false);
556 spin_unlock(&nvbo->bo.lock);
558 NV_ERROR(dev, "reloc wait_idle failed: %d\n", ret);
562 nouveau_bo_wr32(nvbo, r->reloc_bo_offset >> 2, data);
570 nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data,
571 struct drm_file *file_priv)
573 struct drm_nouveau_private *dev_priv = dev->dev_private;
574 struct drm_nouveau_gem_pushbuf *req = data;
575 struct drm_nouveau_gem_pushbuf_push *push;
576 struct drm_nouveau_gem_pushbuf_bo *bo;
577 struct nouveau_channel *chan;
578 struct validate_op op;
579 struct nouveau_fence *fence = NULL;
580 int i, j, ret = 0, do_reloc = 0;
582 NOUVEAU_GET_USER_CHANNEL_WITH_RETURN(req->channel, file_priv, chan);
584 req->vram_available = dev_priv->fb_aper_free;
585 req->gart_available = dev_priv->gart_info.aper_free;
586 if (unlikely(req->nr_push == 0))
589 if (unlikely(req->nr_push > NOUVEAU_GEM_MAX_PUSH)) {
590 NV_ERROR(dev, "pushbuf push count exceeds limit: %d max %d\n",
591 req->nr_push, NOUVEAU_GEM_MAX_PUSH);
595 if (unlikely(req->nr_buffers > NOUVEAU_GEM_MAX_BUFFERS)) {
596 NV_ERROR(dev, "pushbuf bo count exceeds limit: %d max %d\n",
597 req->nr_buffers, NOUVEAU_GEM_MAX_BUFFERS);
601 if (unlikely(req->nr_relocs > NOUVEAU_GEM_MAX_RELOCS)) {
602 NV_ERROR(dev, "pushbuf reloc count exceeds limit: %d max %d\n",
603 req->nr_relocs, NOUVEAU_GEM_MAX_RELOCS);
607 push = u_memcpya(req->push, req->nr_push, sizeof(*push));
609 return PTR_ERR(push);
611 bo = u_memcpya(req->buffers, req->nr_buffers, sizeof(*bo));
617 /* Mark push buffers as being used on PFIFO, the validation code
618 * will then make sure that if the pushbuf bo moves, that they
619 * happen on the kernel channel, which will in turn cause a sync
620 * to happen before we try and submit the push buffer.
622 for (i = 0; i < req->nr_push; i++) {
623 if (push[i].bo_index >= req->nr_buffers) {
624 NV_ERROR(dev, "push %d buffer not in list\n", i);
629 bo[push[i].bo_index].read_domains |= (1 << 31);
632 /* Validate buffer list */
633 ret = nouveau_gem_pushbuf_validate(chan, file_priv, bo, req->buffers,
634 req->nr_buffers, &op, &do_reloc);
636 NV_ERROR(dev, "validate: %d\n", ret);
640 /* Apply any relocations that are required */
642 ret = nouveau_gem_pushbuf_reloc_apply(dev, req, bo);
644 NV_ERROR(dev, "reloc apply: %d\n", ret);
649 if (chan->dma.ib_max) {
650 ret = nouveau_dma_wait(chan, req->nr_push + 1, 6);
652 NV_INFO(dev, "nv50cal_space: %d\n", ret);
656 for (i = 0; i < req->nr_push; i++) {
657 struct nouveau_bo *nvbo = (void *)(unsigned long)
658 bo[push[i].bo_index].user_priv;
660 nv50_dma_push(chan, nvbo, push[i].offset,
664 if (dev_priv->chipset >= 0x25) {
665 ret = RING_SPACE(chan, req->nr_push * 2);
667 NV_ERROR(dev, "cal_space: %d\n", ret);
671 for (i = 0; i < req->nr_push; i++) {
672 struct nouveau_bo *nvbo = (void *)(unsigned long)
673 bo[push[i].bo_index].user_priv;
674 struct drm_mm_node *mem = nvbo->bo.mem.mm_node;
676 OUT_RING(chan, ((mem->start << PAGE_SHIFT) +
677 push[i].offset) | 2);
681 ret = RING_SPACE(chan, req->nr_push * (2 + NOUVEAU_DMA_SKIPS));
683 NV_ERROR(dev, "jmp_space: %d\n", ret);
687 for (i = 0; i < req->nr_push; i++) {
688 struct nouveau_bo *nvbo = (void *)(unsigned long)
689 bo[push[i].bo_index].user_priv;
690 struct drm_mm_node *mem = nvbo->bo.mem.mm_node;
693 cmd = chan->pushbuf_base + ((chan->dma.cur + 2) << 2);
695 if (unlikely(cmd != req->suffix0)) {
696 if (!nvbo->kmap.virtual) {
697 ret = ttm_bo_kmap(&nvbo->bo, 0,
705 nvbo->validate_mapped = true;
708 nouveau_bo_wr32(nvbo, (push[i].offset +
709 push[i].length - 8) / 4, cmd);
712 OUT_RING(chan, ((mem->start << PAGE_SHIFT) +
713 push[i].offset) | 0x20000000);
715 for (j = 0; j < NOUVEAU_DMA_SKIPS; j++)
720 ret = nouveau_fence_new(chan, &fence, true);
722 NV_ERROR(dev, "error fencing pushbuf: %d\n", ret);
728 validate_fini(&op, fence);
729 nouveau_fence_unref((void**)&fence);
734 if (chan->dma.ib_max) {
735 req->suffix0 = 0x00000000;
736 req->suffix1 = 0x00000000;
738 if (dev_priv->chipset >= 0x25) {
739 req->suffix0 = 0x00020000;
740 req->suffix1 = 0x00000000;
742 req->suffix0 = 0x20000000 |
743 (chan->pushbuf_base + ((chan->dma.cur + 2) << 2));
744 req->suffix1 = 0x00000000;
750 static inline uint32_t
751 domain_to_ttm(struct nouveau_bo *nvbo, uint32_t domain)
755 if (domain & NOUVEAU_GEM_DOMAIN_VRAM)
756 flags |= TTM_PL_FLAG_VRAM;
757 if (domain & NOUVEAU_GEM_DOMAIN_GART)
758 flags |= TTM_PL_FLAG_TT;
764 nouveau_gem_ioctl_cpu_prep(struct drm_device *dev, void *data,
765 struct drm_file *file_priv)
767 struct drm_nouveau_gem_cpu_prep *req = data;
768 struct drm_gem_object *gem;
769 struct nouveau_bo *nvbo;
770 bool no_wait = !!(req->flags & NOUVEAU_GEM_CPU_PREP_NOWAIT);
773 gem = drm_gem_object_lookup(dev, file_priv, req->handle);
776 nvbo = nouveau_gem_object(gem);
778 if (nvbo->cpu_filp) {
779 if (nvbo->cpu_filp == file_priv)
782 ret = ttm_bo_wait_cpu(&nvbo->bo, no_wait);
787 if (req->flags & NOUVEAU_GEM_CPU_PREP_NOBLOCK) {
788 spin_lock(&nvbo->bo.lock);
789 ret = ttm_bo_wait(&nvbo->bo, false, false, no_wait);
790 spin_unlock(&nvbo->bo.lock);
792 ret = ttm_bo_synccpu_write_grab(&nvbo->bo, no_wait);
794 nvbo->cpu_filp = file_priv;
798 drm_gem_object_unreference_unlocked(gem);
803 nouveau_gem_ioctl_cpu_fini(struct drm_device *dev, void *data,
804 struct drm_file *file_priv)
806 struct drm_nouveau_gem_cpu_prep *req = data;
807 struct drm_gem_object *gem;
808 struct nouveau_bo *nvbo;
811 gem = drm_gem_object_lookup(dev, file_priv, req->handle);
814 nvbo = nouveau_gem_object(gem);
816 if (nvbo->cpu_filp != file_priv)
818 nvbo->cpu_filp = NULL;
820 ttm_bo_synccpu_write_release(&nvbo->bo);
824 drm_gem_object_unreference_unlocked(gem);
829 nouveau_gem_ioctl_info(struct drm_device *dev, void *data,
830 struct drm_file *file_priv)
832 struct drm_nouveau_gem_info *req = data;
833 struct drm_gem_object *gem;
836 gem = drm_gem_object_lookup(dev, file_priv, req->handle);
840 ret = nouveau_gem_info(gem, req);
841 drm_gem_object_unreference_unlocked(gem);