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);
63 nouveau_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)
68 struct nouveau_bo *nvbo;
71 ret = nouveau_bo_new(dev, chan, size, align, flags, tile_mode,
72 tile_flags, no_vm, mappable, pnvbo);
77 nvbo->gem = drm_gem_object_alloc(dev, nvbo->bo.mem.size);
79 nouveau_bo_ref(NULL, pnvbo);
83 nvbo->bo.persistant_swap_storage = nvbo->gem->filp;
84 nvbo->gem->driver_private = nvbo;
89 nouveau_gem_info(struct drm_gem_object *gem, struct drm_nouveau_gem_info *rep)
91 struct nouveau_bo *nvbo = nouveau_gem_object(gem);
93 if (nvbo->bo.mem.mem_type == TTM_PL_TT)
94 rep->domain = NOUVEAU_GEM_DOMAIN_GART;
96 rep->domain = NOUVEAU_GEM_DOMAIN_VRAM;
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;
107 nouveau_gem_tile_flags_valid(struct drm_device *dev, uint32_t tile_flags) {
108 switch (tile_flags) {
119 NV_ERROR(dev, "bad page flags: 0x%08x\n", tile_flags);
127 nouveau_gem_ioctl_new(struct drm_device *dev, void *data,
128 struct drm_file *file_priv)
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;
137 NOUVEAU_CHECK_INITIALISED_WITH_RETURN;
139 if (unlikely(dev_priv->ttm.bdev.dev_mapping == NULL))
140 dev_priv->ttm.bdev.dev_mapping = dev_priv->dev->dev_mapping;
142 if (req->channel_hint) {
143 NOUVEAU_GET_USER_CHANNEL_WITH_RETURN(req->channel_hint,
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;
154 if (!nouveau_gem_tile_flags_valid(dev, req->info.tile_flags))
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),
164 ret = nouveau_gem_info(nvbo->gem, &req->info);
168 ret = drm_gem_handle_create(file_priv, nvbo->gem, &req->info.handle);
170 drm_gem_object_handle_unreference_unlocked(nvbo->gem);
173 drm_gem_object_unreference_unlocked(nvbo->gem);
178 nouveau_gem_set_domain(struct drm_gem_object *gem, uint32_t read_domains,
179 uint32_t write_domains, uint32_t valid_domains)
181 struct nouveau_bo *nvbo = gem->driver_private;
182 struct ttm_buffer_object *bo = &nvbo->bo;
185 if (!valid_domains || (!read_domains && !write_domains))
189 if ((valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
190 (write_domains & NOUVEAU_GEM_DOMAIN_VRAM))
191 flags = TTM_PL_FLAG_VRAM;
193 if ((valid_domains & NOUVEAU_GEM_DOMAIN_GART) &&
194 (write_domains & NOUVEAU_GEM_DOMAIN_GART))
195 flags = TTM_PL_FLAG_TT;
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;
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;
209 if ((valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
210 (read_domains & NOUVEAU_GEM_DOMAIN_VRAM))
211 flags = TTM_PL_FLAG_VRAM;
213 flags = TTM_PL_FLAG_TT;
216 nouveau_bo_placement_set(nvbo, flags);
221 struct list_head vram_list;
222 struct list_head gart_list;
223 struct list_head both_list;
227 validate_fini_list(struct list_head *list, struct nouveau_fence *fence)
229 struct list_head *entry, *tmp;
230 struct nouveau_bo *nvbo;
232 list_for_each_safe(entry, tmp, list) {
233 nvbo = list_entry(entry, struct nouveau_bo, entry);
235 struct nouveau_fence *prev_fence;
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);
244 if (unlikely(nvbo->validate_mapped)) {
245 ttm_bo_kunmap(&nvbo->kmap);
246 nvbo->validate_mapped = false;
249 list_del(&nvbo->entry);
250 nvbo->reserved_by = NULL;
251 ttm_bo_unreserve(&nvbo->bo);
252 drm_gem_object_unreference(nvbo->gem);
257 validate_fini(struct validate_op *op, struct nouveau_fence* fence)
259 validate_fini_list(&op->vram_list, fence);
260 validate_fini_list(&op->gart_list, fence);
261 validate_fini_list(&op->both_list, fence);
265 validate_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)
269 struct drm_device *dev = chan->dev;
270 struct drm_nouveau_private *dev_priv = dev->dev_private;
275 sequence = atomic_add_return(1, &dev_priv->ttm.validate_sequence);
277 if (++trycnt > 100000) {
278 NV_ERROR(dev, "%s failed and gave up.\n", __func__);
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;
287 gem = drm_gem_object_lookup(dev, file_priv, b->handle);
289 NV_ERROR(dev, "Unknown handle 0x%08x\n", b->handle);
290 validate_fini(op, NULL);
293 nvbo = gem->driver_private;
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);
302 ret = ttm_bo_reserve(&nvbo->bo, false, false, true, sequence);
304 validate_fini(op, NULL);
306 ret = ttm_bo_wait_unreserved(&nvbo->bo, false);
307 drm_gem_object_unreference(gem);
309 NV_ERROR(dev, "fail reserve\n");
315 b->user_priv = (uint64_t)(unsigned long)nvbo;
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);
322 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM)
323 list_add_tail(&nvbo->entry, &op->vram_list);
325 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART)
326 list_add_tail(&nvbo->entry, &op->gart_list);
328 NV_ERROR(dev, "invalid valid domains: 0x%08x\n",
330 list_add_tail(&nvbo->entry, &op->both_list);
331 validate_fini(op, NULL);
335 if (unlikely(atomic_read(&nvbo->bo.cpu_writers) > 0)) {
336 validate_fini(op, NULL);
338 if (nvbo->cpu_filp == file_priv) {
339 NV_ERROR(dev, "bo %p mapped by process trying "
340 "to validate it!\n", nvbo);
344 ret = ttm_bo_wait_cpu(&nvbo->bo, false);
346 NV_ERROR(dev, "fail wait_cpu\n");
357 validate_list(struct nouveau_channel *chan, struct list_head *list,
358 struct drm_nouveau_gem_pushbuf_bo *pbbo, uint64_t user_pbbo_ptr)
360 struct drm_nouveau_gem_pushbuf_bo __user *upbbo =
361 (void __force __user *)(uintptr_t)user_pbbo_ptr;
362 struct drm_device *dev = chan->dev;
363 struct nouveau_bo *nvbo;
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;
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);
375 NV_ERROR(dev, "fail wait other chan\n");
380 ret = nouveau_gem_set_domain(nvbo->gem, b->read_domains,
384 NV_ERROR(dev, "fail set_domain\n");
388 nvbo->channel = chan;
389 ret = ttm_bo_validate(&nvbo->bo, &nvbo->placement,
390 false, false, false);
391 nvbo->channel = NULL;
393 NV_ERROR(dev, "fail ttm_validate\n");
397 if (nvbo->bo.offset == b->presumed.offset &&
398 ((nvbo->bo.mem.mem_type == TTM_PL_VRAM &&
399 b->presumed.domain & NOUVEAU_GEM_DOMAIN_VRAM) ||
400 (nvbo->bo.mem.mem_type == TTM_PL_TT &&
401 b->presumed.domain & NOUVEAU_GEM_DOMAIN_GART)))
404 if (nvbo->bo.mem.mem_type == TTM_PL_TT)
405 b->presumed.domain = NOUVEAU_GEM_DOMAIN_GART;
407 b->presumed.domain = NOUVEAU_GEM_DOMAIN_VRAM;
408 b->presumed.offset = nvbo->bo.offset;
409 b->presumed.valid = 0;
412 if (DRM_COPY_TO_USER(&upbbo[nvbo->pbbo_index].presumed,
413 &b->presumed, sizeof(b->presumed)))
421 nouveau_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)
427 struct drm_device *dev = chan->dev;
430 INIT_LIST_HEAD(&op->vram_list);
431 INIT_LIST_HEAD(&op->gart_list);
432 INIT_LIST_HEAD(&op->both_list);
437 ret = validate_init(chan, file_priv, pbbo, nr_buffers, op);
439 NV_ERROR(dev, "validate_init\n");
443 ret = validate_list(chan, &op->vram_list, pbbo, user_buffers);
444 if (unlikely(ret < 0)) {
445 NV_ERROR(dev, "validate vram_list\n");
446 validate_fini(op, NULL);
451 ret = validate_list(chan, &op->gart_list, pbbo, user_buffers);
452 if (unlikely(ret < 0)) {
453 NV_ERROR(dev, "validate gart_list\n");
454 validate_fini(op, NULL);
459 ret = validate_list(chan, &op->both_list, pbbo, user_buffers);
460 if (unlikely(ret < 0)) {
461 NV_ERROR(dev, "validate both_list\n");
462 validate_fini(op, NULL);
467 *apply_relocs = relocs;
472 u_memcpya(uint64_t user, unsigned nmemb, unsigned size)
475 void __user *userptr = (void __force __user *)(uintptr_t)user;
477 mem = kmalloc(nmemb * size, GFP_KERNEL);
479 return ERR_PTR(-ENOMEM);
481 if (DRM_COPY_FROM_USER(mem, userptr, nmemb * size)) {
483 return ERR_PTR(-EFAULT);
490 nouveau_gem_pushbuf_reloc_apply(struct drm_device *dev,
491 struct drm_nouveau_gem_pushbuf *req,
492 struct drm_nouveau_gem_pushbuf_bo *bo)
494 struct drm_nouveau_gem_pushbuf_reloc *reloc = NULL;
498 reloc = u_memcpya(req->relocs, req->nr_relocs, sizeof(*reloc));
500 return PTR_ERR(reloc);
502 for (i = 0; i < req->nr_relocs; i++) {
503 struct drm_nouveau_gem_pushbuf_reloc *r = &reloc[i];
504 struct drm_nouveau_gem_pushbuf_bo *b;
505 struct nouveau_bo *nvbo;
508 if (unlikely(r->bo_index > req->nr_buffers)) {
509 NV_ERROR(dev, "reloc bo index invalid\n");
514 b = &bo[r->bo_index];
515 if (b->presumed.valid)
518 if (unlikely(r->reloc_bo_index > req->nr_buffers)) {
519 NV_ERROR(dev, "reloc container bo index invalid\n");
523 nvbo = (void *)(unsigned long)bo[r->reloc_bo_index].user_priv;
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");
532 if (!nvbo->kmap.virtual) {
533 ret = ttm_bo_kmap(&nvbo->bo, 0, nvbo->bo.mem.num_pages,
536 NV_ERROR(dev, "failed kmap for reloc\n");
539 nvbo->validate_mapped = true;
542 if (r->flags & NOUVEAU_GEM_RELOC_LOW)
543 data = b->presumed.offset + r->data;
545 if (r->flags & NOUVEAU_GEM_RELOC_HIGH)
546 data = (b->presumed.offset + r->data) >> 32;
550 if (r->flags & NOUVEAU_GEM_RELOC_OR) {
551 if (b->presumed.domain == NOUVEAU_GEM_DOMAIN_GART)
557 spin_lock(&nvbo->bo.lock);
558 ret = ttm_bo_wait(&nvbo->bo, false, false, false);
559 spin_unlock(&nvbo->bo.lock);
561 NV_ERROR(dev, "reloc wait_idle failed: %d\n", ret);
565 nouveau_bo_wr32(nvbo, r->reloc_bo_offset >> 2, data);
573 nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data,
574 struct drm_file *file_priv)
576 struct drm_nouveau_private *dev_priv = dev->dev_private;
577 struct drm_nouveau_gem_pushbuf *req = data;
578 struct drm_nouveau_gem_pushbuf_push *push;
579 struct drm_nouveau_gem_pushbuf_bo *bo;
580 struct nouveau_channel *chan;
581 struct validate_op op;
582 struct nouveau_fence *fence = 0;
583 int i, j, ret = 0, do_reloc = 0;
585 NOUVEAU_CHECK_INITIALISED_WITH_RETURN;
586 NOUVEAU_GET_USER_CHANNEL_WITH_RETURN(req->channel, file_priv, chan);
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))
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);
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);
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);
611 push = u_memcpya(req->push, req->nr_push, sizeof(*push));
613 return PTR_ERR(push);
615 bo = u_memcpya(req->buffers, req->nr_buffers, sizeof(*bo));
621 mutex_lock(&dev->struct_mutex);
623 /* Validate buffer list */
624 ret = nouveau_gem_pushbuf_validate(chan, file_priv, bo, req->buffers,
625 req->nr_buffers, &op, &do_reloc);
627 NV_ERROR(dev, "validate: %d\n", ret);
631 /* Apply any relocations that are required */
633 ret = nouveau_gem_pushbuf_reloc_apply(dev, req, bo);
635 NV_ERROR(dev, "reloc apply: %d\n", ret);
640 if (chan->dma.ib_max) {
641 ret = nouveau_dma_wait(chan, req->nr_push + 1, 6);
643 NV_INFO(dev, "nv50cal_space: %d\n", ret);
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;
651 nv50_dma_push(chan, nvbo, push[i].offset,
655 if (dev_priv->card_type >= NV_20) {
656 ret = RING_SPACE(chan, req->nr_push * 2);
658 NV_ERROR(dev, "cal_space: %d\n", ret);
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;
667 OUT_RING(chan, ((mem->start << PAGE_SHIFT) +
668 push[i].offset) | 2);
672 ret = RING_SPACE(chan, req->nr_push * (2 + NOUVEAU_DMA_SKIPS));
674 NV_ERROR(dev, "jmp_space: %d\n", ret);
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;
684 cmd = chan->pushbuf_base + ((chan->dma.cur + 2) << 2);
686 if (unlikely(cmd != req->suffix0)) {
687 if (!nvbo->kmap.virtual) {
688 ret = ttm_bo_kmap(&nvbo->bo, 0,
696 nvbo->validate_mapped = true;
699 nouveau_bo_wr32(nvbo, (push[i].offset +
700 push[i].length - 8) / 4, cmd);
703 OUT_RING(chan, ((mem->start << PAGE_SHIFT) +
704 push[i].offset) | 0x20000000);
706 for (j = 0; j < NOUVEAU_DMA_SKIPS; j++)
711 ret = nouveau_fence_new(chan, &fence, true);
713 NV_ERROR(dev, "error fencing pushbuf: %d\n", ret);
719 validate_fini(&op, fence);
720 nouveau_fence_unref((void**)&fence);
721 mutex_unlock(&dev->struct_mutex);
726 if (chan->dma.ib_max) {
727 req->suffix0 = 0x00000000;
728 req->suffix1 = 0x00000000;
730 if (dev_priv->card_type >= NV_20) {
731 req->suffix0 = 0x00020000;
732 req->suffix1 = 0x00000000;
734 req->suffix0 = 0x20000000 |
735 (chan->pushbuf_base + ((chan->dma.cur + 2) << 2));
736 req->suffix1 = 0x00000000;
742 static inline uint32_t
743 domain_to_ttm(struct nouveau_bo *nvbo, uint32_t domain)
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;
756 nouveau_gem_ioctl_cpu_prep(struct drm_device *dev, void *data,
757 struct drm_file *file_priv)
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);
765 NOUVEAU_CHECK_INITIALISED_WITH_RETURN;
767 gem = drm_gem_object_lookup(dev, file_priv, req->handle);
770 nvbo = nouveau_gem_object(gem);
772 if (nvbo->cpu_filp) {
773 if (nvbo->cpu_filp == file_priv)
776 ret = ttm_bo_wait_cpu(&nvbo->bo, no_wait);
781 if (req->flags & NOUVEAU_GEM_CPU_PREP_NOBLOCK) {
782 spin_lock(&nvbo->bo.lock);
783 ret = ttm_bo_wait(&nvbo->bo, false, false, no_wait);
784 spin_unlock(&nvbo->bo.lock);
786 ret = ttm_bo_synccpu_write_grab(&nvbo->bo, no_wait);
788 nvbo->cpu_filp = file_priv;
792 drm_gem_object_unreference_unlocked(gem);
797 nouveau_gem_ioctl_cpu_fini(struct drm_device *dev, void *data,
798 struct drm_file *file_priv)
800 struct drm_nouveau_gem_cpu_prep *req = data;
801 struct drm_gem_object *gem;
802 struct nouveau_bo *nvbo;
805 NOUVEAU_CHECK_INITIALISED_WITH_RETURN;
807 gem = drm_gem_object_lookup(dev, file_priv, req->handle);
810 nvbo = nouveau_gem_object(gem);
812 if (nvbo->cpu_filp != file_priv)
814 nvbo->cpu_filp = NULL;
816 ttm_bo_synccpu_write_release(&nvbo->bo);
820 drm_gem_object_unreference_unlocked(gem);
825 nouveau_gem_ioctl_info(struct drm_device *dev, void *data,
826 struct drm_file *file_priv)
828 struct drm_nouveau_gem_info *req = data;
829 struct drm_gem_object *gem;
832 NOUVEAU_CHECK_INITIALISED_WITH_RETURN;
834 gem = drm_gem_object_lookup(dev, file_priv, req->handle);
838 ret = nouveau_gem_info(gem, req);
839 drm_gem_object_unreference_unlocked(gem);