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)
112 struct drm_nouveau_private *dev_priv = dev->dev_private;
114 if (dev_priv->card_type >= NV_50) {
115 switch (tile_flags & NOUVEAU_GEM_TILE_LAYOUT_MASK) {
127 if (!(tile_flags & NOUVEAU_GEM_TILE_LAYOUT_MASK))
131 NV_ERROR(dev, "bad page flags: 0x%08x\n", tile_flags);
136 nouveau_gem_ioctl_new(struct drm_device *dev, void *data,
137 struct drm_file *file_priv)
139 struct drm_nouveau_private *dev_priv = dev->dev_private;
140 struct drm_nouveau_gem_new *req = data;
141 struct nouveau_bo *nvbo = NULL;
142 struct nouveau_channel *chan = NULL;
146 if (unlikely(dev_priv->ttm.bdev.dev_mapping == NULL))
147 dev_priv->ttm.bdev.dev_mapping = dev_priv->dev->dev_mapping;
149 if (req->channel_hint) {
150 NOUVEAU_GET_USER_CHANNEL_WITH_RETURN(req->channel_hint,
154 if (req->info.domain & NOUVEAU_GEM_DOMAIN_VRAM)
155 flags |= TTM_PL_FLAG_VRAM;
156 if (req->info.domain & NOUVEAU_GEM_DOMAIN_GART)
157 flags |= TTM_PL_FLAG_TT;
158 if (!flags || req->info.domain & NOUVEAU_GEM_DOMAIN_CPU)
159 flags |= TTM_PL_FLAG_SYSTEM;
161 if (!nouveau_gem_tile_flags_valid(dev, req->info.tile_flags))
164 ret = nouveau_gem_new(dev, chan, req->info.size, req->align, flags,
165 req->info.tile_mode, req->info.tile_flags, false,
166 (req->info.domain & NOUVEAU_GEM_DOMAIN_MAPPABLE),
171 ret = nouveau_gem_info(nvbo->gem, &req->info);
175 ret = drm_gem_handle_create(file_priv, nvbo->gem, &req->info.handle);
176 /* drop reference from allocate - handle holds it now */
177 drm_gem_object_unreference_unlocked(nvbo->gem);
183 nouveau_gem_set_domain(struct drm_gem_object *gem, uint32_t read_domains,
184 uint32_t write_domains, uint32_t valid_domains)
186 struct nouveau_bo *nvbo = gem->driver_private;
187 struct ttm_buffer_object *bo = &nvbo->bo;
188 uint32_t domains = valid_domains &
189 (write_domains ? write_domains : read_domains);
190 uint32_t pref_flags = 0, valid_flags = 0;
195 if (valid_domains & NOUVEAU_GEM_DOMAIN_VRAM)
196 valid_flags |= TTM_PL_FLAG_VRAM;
198 if (valid_domains & NOUVEAU_GEM_DOMAIN_GART)
199 valid_flags |= TTM_PL_FLAG_TT;
201 if ((domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
202 bo->mem.mem_type == TTM_PL_VRAM)
203 pref_flags |= TTM_PL_FLAG_VRAM;
205 else if ((domains & NOUVEAU_GEM_DOMAIN_GART) &&
206 bo->mem.mem_type == TTM_PL_TT)
207 pref_flags |= TTM_PL_FLAG_TT;
209 else if (domains & NOUVEAU_GEM_DOMAIN_VRAM)
210 pref_flags |= TTM_PL_FLAG_VRAM;
213 pref_flags |= TTM_PL_FLAG_TT;
215 nouveau_bo_placement_set(nvbo, pref_flags, valid_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_unlocked(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_unlocked(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 mutex_unlock(&drm_global_mutex);
345 ret = ttm_bo_wait_cpu(&nvbo->bo, false);
346 mutex_lock(&drm_global_mutex);
348 NV_ERROR(dev, "fail wait_cpu\n");
359 validate_list(struct nouveau_channel *chan, struct list_head *list,
360 struct drm_nouveau_gem_pushbuf_bo *pbbo, uint64_t user_pbbo_ptr)
362 struct drm_nouveau_gem_pushbuf_bo __user *upbbo =
363 (void __force __user *)(uintptr_t)user_pbbo_ptr;
364 struct drm_device *dev = chan->dev;
365 struct nouveau_bo *nvbo;
368 list_for_each_entry(nvbo, list, entry) {
369 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[nvbo->pbbo_index];
371 ret = nouveau_fence_sync(nvbo->bo.sync_obj, chan);
373 NV_ERROR(dev, "fail pre-validate sync\n");
377 ret = nouveau_gem_set_domain(nvbo->gem, b->read_domains,
381 NV_ERROR(dev, "fail set_domain\n");
385 nvbo->channel = (b->read_domains & (1 << 31)) ? NULL : chan;
386 ret = ttm_bo_validate(&nvbo->bo, &nvbo->placement,
387 false, false, false);
388 nvbo->channel = NULL;
390 NV_ERROR(dev, "fail ttm_validate\n");
394 ret = nouveau_fence_sync(nvbo->bo.sync_obj, chan);
396 NV_ERROR(dev, "fail post-validate sync\n");
400 if (nvbo->bo.offset == b->presumed.offset &&
401 ((nvbo->bo.mem.mem_type == TTM_PL_VRAM &&
402 b->presumed.domain & NOUVEAU_GEM_DOMAIN_VRAM) ||
403 (nvbo->bo.mem.mem_type == TTM_PL_TT &&
404 b->presumed.domain & NOUVEAU_GEM_DOMAIN_GART)))
407 if (nvbo->bo.mem.mem_type == TTM_PL_TT)
408 b->presumed.domain = NOUVEAU_GEM_DOMAIN_GART;
410 b->presumed.domain = NOUVEAU_GEM_DOMAIN_VRAM;
411 b->presumed.offset = nvbo->bo.offset;
412 b->presumed.valid = 0;
415 if (DRM_COPY_TO_USER(&upbbo[nvbo->pbbo_index].presumed,
416 &b->presumed, sizeof(b->presumed)))
424 nouveau_gem_pushbuf_validate(struct nouveau_channel *chan,
425 struct drm_file *file_priv,
426 struct drm_nouveau_gem_pushbuf_bo *pbbo,
427 uint64_t user_buffers, int nr_buffers,
428 struct validate_op *op, int *apply_relocs)
430 struct drm_device *dev = chan->dev;
433 INIT_LIST_HEAD(&op->vram_list);
434 INIT_LIST_HEAD(&op->gart_list);
435 INIT_LIST_HEAD(&op->both_list);
440 ret = validate_init(chan, file_priv, pbbo, nr_buffers, op);
442 NV_ERROR(dev, "validate_init\n");
446 ret = validate_list(chan, &op->vram_list, pbbo, user_buffers);
447 if (unlikely(ret < 0)) {
448 NV_ERROR(dev, "validate vram_list\n");
449 validate_fini(op, NULL);
454 ret = validate_list(chan, &op->gart_list, pbbo, user_buffers);
455 if (unlikely(ret < 0)) {
456 NV_ERROR(dev, "validate gart_list\n");
457 validate_fini(op, NULL);
462 ret = validate_list(chan, &op->both_list, pbbo, user_buffers);
463 if (unlikely(ret < 0)) {
464 NV_ERROR(dev, "validate both_list\n");
465 validate_fini(op, NULL);
470 *apply_relocs = relocs;
475 u_memcpya(uint64_t user, unsigned nmemb, unsigned size)
478 void __user *userptr = (void __force __user *)(uintptr_t)user;
480 mem = kmalloc(nmemb * size, GFP_KERNEL);
482 return ERR_PTR(-ENOMEM);
484 if (DRM_COPY_FROM_USER(mem, userptr, nmemb * size)) {
486 return ERR_PTR(-EFAULT);
493 nouveau_gem_pushbuf_reloc_apply(struct drm_device *dev,
494 struct drm_nouveau_gem_pushbuf *req,
495 struct drm_nouveau_gem_pushbuf_bo *bo)
497 struct drm_nouveau_gem_pushbuf_reloc *reloc = NULL;
501 reloc = u_memcpya(req->relocs, req->nr_relocs, sizeof(*reloc));
503 return PTR_ERR(reloc);
505 for (i = 0; i < req->nr_relocs; i++) {
506 struct drm_nouveau_gem_pushbuf_reloc *r = &reloc[i];
507 struct drm_nouveau_gem_pushbuf_bo *b;
508 struct nouveau_bo *nvbo;
511 if (unlikely(r->bo_index > req->nr_buffers)) {
512 NV_ERROR(dev, "reloc bo index invalid\n");
517 b = &bo[r->bo_index];
518 if (b->presumed.valid)
521 if (unlikely(r->reloc_bo_index > req->nr_buffers)) {
522 NV_ERROR(dev, "reloc container bo index invalid\n");
526 nvbo = (void *)(unsigned long)bo[r->reloc_bo_index].user_priv;
528 if (unlikely(r->reloc_bo_offset + 4 >
529 nvbo->bo.mem.num_pages << PAGE_SHIFT)) {
530 NV_ERROR(dev, "reloc outside of bo\n");
535 if (!nvbo->kmap.virtual) {
536 ret = ttm_bo_kmap(&nvbo->bo, 0, nvbo->bo.mem.num_pages,
539 NV_ERROR(dev, "failed kmap for reloc\n");
542 nvbo->validate_mapped = true;
545 if (r->flags & NOUVEAU_GEM_RELOC_LOW)
546 data = b->presumed.offset + r->data;
548 if (r->flags & NOUVEAU_GEM_RELOC_HIGH)
549 data = (b->presumed.offset + r->data) >> 32;
553 if (r->flags & NOUVEAU_GEM_RELOC_OR) {
554 if (b->presumed.domain == NOUVEAU_GEM_DOMAIN_GART)
560 spin_lock(&nvbo->bo.lock);
561 ret = ttm_bo_wait(&nvbo->bo, false, false, false);
562 spin_unlock(&nvbo->bo.lock);
564 NV_ERROR(dev, "reloc wait_idle failed: %d\n", ret);
568 nouveau_bo_wr32(nvbo, r->reloc_bo_offset >> 2, data);
576 nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data,
577 struct drm_file *file_priv)
579 struct drm_nouveau_private *dev_priv = dev->dev_private;
580 struct drm_nouveau_gem_pushbuf *req = data;
581 struct drm_nouveau_gem_pushbuf_push *push;
582 struct drm_nouveau_gem_pushbuf_bo *bo;
583 struct nouveau_channel *chan;
584 struct validate_op op;
585 struct nouveau_fence *fence = NULL;
586 int i, j, ret = 0, do_reloc = 0;
588 NOUVEAU_GET_USER_CHANNEL_WITH_RETURN(req->channel, file_priv, chan);
590 req->vram_available = dev_priv->fb_aper_free;
591 req->gart_available = dev_priv->gart_info.aper_free;
592 if (unlikely(req->nr_push == 0))
595 if (unlikely(req->nr_push > NOUVEAU_GEM_MAX_PUSH)) {
596 NV_ERROR(dev, "pushbuf push count exceeds limit: %d max %d\n",
597 req->nr_push, NOUVEAU_GEM_MAX_PUSH);
601 if (unlikely(req->nr_buffers > NOUVEAU_GEM_MAX_BUFFERS)) {
602 NV_ERROR(dev, "pushbuf bo count exceeds limit: %d max %d\n",
603 req->nr_buffers, NOUVEAU_GEM_MAX_BUFFERS);
607 if (unlikely(req->nr_relocs > NOUVEAU_GEM_MAX_RELOCS)) {
608 NV_ERROR(dev, "pushbuf reloc count exceeds limit: %d max %d\n",
609 req->nr_relocs, NOUVEAU_GEM_MAX_RELOCS);
613 push = u_memcpya(req->push, req->nr_push, sizeof(*push));
615 return PTR_ERR(push);
617 bo = u_memcpya(req->buffers, req->nr_buffers, sizeof(*bo));
623 /* Mark push buffers as being used on PFIFO, the validation code
624 * will then make sure that if the pushbuf bo moves, that they
625 * happen on the kernel channel, which will in turn cause a sync
626 * to happen before we try and submit the push buffer.
628 for (i = 0; i < req->nr_push; i++) {
629 if (push[i].bo_index >= req->nr_buffers) {
630 NV_ERROR(dev, "push %d buffer not in list\n", i);
635 bo[push[i].bo_index].read_domains |= (1 << 31);
638 /* Validate buffer list */
639 ret = nouveau_gem_pushbuf_validate(chan, file_priv, bo, req->buffers,
640 req->nr_buffers, &op, &do_reloc);
642 NV_ERROR(dev, "validate: %d\n", ret);
646 /* Apply any relocations that are required */
648 ret = nouveau_gem_pushbuf_reloc_apply(dev, req, bo);
650 NV_ERROR(dev, "reloc apply: %d\n", ret);
655 if (chan->dma.ib_max) {
656 ret = nouveau_dma_wait(chan, req->nr_push + 1, 6);
658 NV_INFO(dev, "nv50cal_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;
666 nv50_dma_push(chan, nvbo, push[i].offset,
670 if (dev_priv->chipset >= 0x25) {
671 ret = RING_SPACE(chan, req->nr_push * 2);
673 NV_ERROR(dev, "cal_space: %d\n", ret);
677 for (i = 0; i < req->nr_push; i++) {
678 struct nouveau_bo *nvbo = (void *)(unsigned long)
679 bo[push[i].bo_index].user_priv;
680 struct drm_mm_node *mem = nvbo->bo.mem.mm_node;
682 OUT_RING(chan, ((mem->start << PAGE_SHIFT) +
683 push[i].offset) | 2);
687 ret = RING_SPACE(chan, req->nr_push * (2 + NOUVEAU_DMA_SKIPS));
689 NV_ERROR(dev, "jmp_space: %d\n", ret);
693 for (i = 0; i < req->nr_push; i++) {
694 struct nouveau_bo *nvbo = (void *)(unsigned long)
695 bo[push[i].bo_index].user_priv;
696 struct drm_mm_node *mem = nvbo->bo.mem.mm_node;
699 cmd = chan->pushbuf_base + ((chan->dma.cur + 2) << 2);
701 if (unlikely(cmd != req->suffix0)) {
702 if (!nvbo->kmap.virtual) {
703 ret = ttm_bo_kmap(&nvbo->bo, 0,
711 nvbo->validate_mapped = true;
714 nouveau_bo_wr32(nvbo, (push[i].offset +
715 push[i].length - 8) / 4, cmd);
718 OUT_RING(chan, ((mem->start << PAGE_SHIFT) +
719 push[i].offset) | 0x20000000);
721 for (j = 0; j < NOUVEAU_DMA_SKIPS; j++)
726 ret = nouveau_fence_new(chan, &fence, true);
728 NV_ERROR(dev, "error fencing pushbuf: %d\n", ret);
734 validate_fini(&op, fence);
735 nouveau_fence_unref((void**)&fence);
740 if (chan->dma.ib_max) {
741 req->suffix0 = 0x00000000;
742 req->suffix1 = 0x00000000;
744 if (dev_priv->chipset >= 0x25) {
745 req->suffix0 = 0x00020000;
746 req->suffix1 = 0x00000000;
748 req->suffix0 = 0x20000000 |
749 (chan->pushbuf_base + ((chan->dma.cur + 2) << 2));
750 req->suffix1 = 0x00000000;
756 static inline uint32_t
757 domain_to_ttm(struct nouveau_bo *nvbo, uint32_t domain)
761 if (domain & NOUVEAU_GEM_DOMAIN_VRAM)
762 flags |= TTM_PL_FLAG_VRAM;
763 if (domain & NOUVEAU_GEM_DOMAIN_GART)
764 flags |= TTM_PL_FLAG_TT;
770 nouveau_gem_ioctl_cpu_prep(struct drm_device *dev, void *data,
771 struct drm_file *file_priv)
773 struct drm_nouveau_gem_cpu_prep *req = data;
774 struct drm_gem_object *gem;
775 struct nouveau_bo *nvbo;
776 bool no_wait = !!(req->flags & NOUVEAU_GEM_CPU_PREP_NOWAIT);
779 gem = drm_gem_object_lookup(dev, file_priv, req->handle);
782 nvbo = nouveau_gem_object(gem);
784 if (nvbo->cpu_filp) {
785 if (nvbo->cpu_filp == file_priv)
788 ret = ttm_bo_wait_cpu(&nvbo->bo, no_wait);
793 if (req->flags & NOUVEAU_GEM_CPU_PREP_NOBLOCK) {
794 spin_lock(&nvbo->bo.lock);
795 ret = ttm_bo_wait(&nvbo->bo, false, false, no_wait);
796 spin_unlock(&nvbo->bo.lock);
798 ret = ttm_bo_synccpu_write_grab(&nvbo->bo, no_wait);
800 nvbo->cpu_filp = file_priv;
804 drm_gem_object_unreference_unlocked(gem);
809 nouveau_gem_ioctl_cpu_fini(struct drm_device *dev, void *data,
810 struct drm_file *file_priv)
812 struct drm_nouveau_gem_cpu_prep *req = data;
813 struct drm_gem_object *gem;
814 struct nouveau_bo *nvbo;
817 gem = drm_gem_object_lookup(dev, file_priv, req->handle);
820 nvbo = nouveau_gem_object(gem);
822 if (nvbo->cpu_filp != file_priv)
824 nvbo->cpu_filp = NULL;
826 ttm_bo_synccpu_write_release(&nvbo->bo);
830 drm_gem_object_unreference_unlocked(gem);
835 nouveau_gem_ioctl_info(struct drm_device *dev, void *data,
836 struct drm_file *file_priv)
838 struct drm_nouveau_gem_info *req = data;
839 struct drm_gem_object *gem;
842 gem = drm_gem_object_lookup(dev, file_priv, req->handle);
846 ret = nouveau_gem_info(gem, req);
847 drm_gem_object_unreference_unlocked(gem);