7  * copy of this software and associated documentation files (the "Software"),
8  * to deal in the Software without restriction, including without limitation
10  * and/or sell copies of the Software, and to permit persons to whom the
11  * Software is furnished to do so, subject to the following conditions:
14  * all copies or substantial portions of the Software.
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22  * OTHER DEALINGS IN THE SOFTWARE.
54  * radeon_vm_num_pdes - return the number of page directory entries
62 	return rdev->vm_manager.max_pfn >> radeon_vm_block_size;  in radeon_vm_num_pdes()
66  * radeon_vm_directory_size - returns the size of the page directory in bytes
78  * radeon_vm_manager_init - init the vm manager
89 	if (!rdev->vm_manager.enabled) {  in radeon_vm_manager_init()
94 		rdev->vm_manager.enabled = true;  in radeon_vm_manager_init()
100  * radeon_vm_manager_fini - tear down the vm manager
110 	if (!rdev->vm_manager.enabled)  in radeon_vm_manager_fini()
114 		radeon_fence_unref(&rdev->vm_manager.active[i]);  in radeon_vm_manager_fini()
116 	rdev->vm_manager.enabled = false;  in radeon_vm_manager_fini()
120  * radeon_vm_get_bos - add the vm BOs to a validation list
136 	list = kvmalloc_array(vm->max_pde_used + 2,  in radeon_vm_get_bos()
142 	list[0].robj = vm->page_directory;  in radeon_vm_get_bos()
145 	list[0].tv.bo = &vm->page_directory->tbo;  in radeon_vm_get_bos()
150 	for (i = 0, idx = 1; i <= vm->max_pde_used; i++) {  in radeon_vm_get_bos()
151 		if (!vm->page_tables[i].bo)  in radeon_vm_get_bos()
154 		list[idx].robj = vm->page_tables[i].bo;  in radeon_vm_get_bos()
157 		list[idx].tv.bo = &list[idx].robj->tbo;  in radeon_vm_get_bos()
167  * radeon_vm_grab_id - allocate the next free VMID
176  * Global and local mutex must be locked!
182 	struct radeon_vm_id *vm_id = &vm->ids[ring];  in radeon_vm_grab_id()
188 	if (vm_id->id && vm_id->last_id_use &&  in radeon_vm_grab_id()
189 	    vm_id->last_id_use == rdev->vm_manager.active[vm_id->id])  in radeon_vm_grab_id()
193 	vm_id->pd_gpu_addr = ~0ll;  in radeon_vm_grab_id()
196 	for (i = 1; i < rdev->vm_manager.nvm; ++i) {  in radeon_vm_grab_id()
197 		struct radeon_fence *fence = rdev->vm_manager.active[i];  in radeon_vm_grab_id()
201 			vm_id->id = i;  in radeon_vm_grab_id()
206 		if (radeon_fence_is_earlier(fence, best[fence->ring])) {  in radeon_vm_grab_id()
207 			best[fence->ring] = fence;  in radeon_vm_grab_id()
208 			choices[fence->ring == ring ? 0 : 1] = i;  in radeon_vm_grab_id()
214 			vm_id->id = choices[i];  in radeon_vm_grab_id()
216 			return rdev->vm_manager.active[choices[i]];  in radeon_vm_grab_id()
226  * radeon_vm_flush - hardware flush the vm
235  * Global and local mutex must be locked!
241 	uint64_t pd_addr = radeon_bo_gpu_offset(vm->page_directory);  in radeon_vm_flush()
242 	struct radeon_vm_id *vm_id = &vm->ids[ring];  in radeon_vm_flush()
244 	if (pd_addr != vm_id->pd_gpu_addr || !vm_id->flushed_updates ||  in radeon_vm_flush()
245 	    radeon_fence_is_earlier(vm_id->flushed_updates, updates)) {  in radeon_vm_flush()
247 		trace_radeon_vm_flush(pd_addr, ring, vm->ids[ring].id);  in radeon_vm_flush()
248 		radeon_fence_unref(&vm_id->flushed_updates);  in radeon_vm_flush()
249 		vm_id->flushed_updates = radeon_fence_ref(updates);  in radeon_vm_flush()
250 		vm_id->pd_gpu_addr = pd_addr;  in radeon_vm_flush()
251 		radeon_ring_vm_flush(rdev, &rdev->ring[ring],  in radeon_vm_flush()
252 				     vm_id->id, vm_id->pd_gpu_addr);  in radeon_vm_flush()
258  * radeon_vm_fence - remember fence for vm
267  * Global and local mutex must be locked!
273 	unsigned vm_id = vm->ids[fence->ring].id;  in radeon_vm_fence()
275 	radeon_fence_unref(&rdev->vm_manager.active[vm_id]);  in radeon_vm_fence()
276 	rdev->vm_manager.active[vm_id] = radeon_fence_ref(fence);  in radeon_vm_fence()
278 	radeon_fence_unref(&vm->ids[fence->ring].last_id_use);  in radeon_vm_fence()
279 	vm->ids[fence->ring].last_id_use = radeon_fence_ref(fence);  in radeon_vm_fence()
283  * radeon_vm_bo_find - find the bo_va for a specific vm & bo
299 	list_for_each_entry(bo_va, &bo->va, bo_list) {  in radeon_vm_bo_find()
300 		if (bo_va->vm == vm)  in radeon_vm_bo_find()
308  * radeon_vm_bo_add - add a bo to a specific vm
330 	bo_va->vm = vm;  in radeon_vm_bo_add()
331 	bo_va->bo = bo;  in radeon_vm_bo_add()
332 	bo_va->it.start = 0;  in radeon_vm_bo_add()
333 	bo_va->it.last = 0;  in radeon_vm_bo_add()
334 	bo_va->flags = 0;  in radeon_vm_bo_add()
335 	bo_va->ref_count = 1;  in radeon_vm_bo_add()
336 	INIT_LIST_HEAD(&bo_va->bo_list);  in radeon_vm_bo_add()
337 	INIT_LIST_HEAD(&bo_va->vm_status);  in radeon_vm_bo_add()
339 	mutex_lock(&vm->mutex);  in radeon_vm_bo_add()
340 	list_add_tail(&bo_va->bo_list, &bo->va);  in radeon_vm_bo_add()
341 	mutex_unlock(&vm->mutex);  in radeon_vm_bo_add()
347  * radeon_vm_set_pages - helper to call the right asic function
369 		uint64_t src = rdev->gart.table_addr + (addr >> 12) * 8;  in radeon_vm_set_pages()
383  * radeon_vm_clear_bo - initially clear the page dir/table
401 	r = ttm_bo_validate(&bo->tbo, &bo->placement, &ctx);  in radeon_vm_clear_bo()
422 	ib.fence->is_vm_update = true;  in radeon_vm_clear_bo()
434  * radeon_vm_bo_set_addr - set bos virtual address inside a vm
452 	uint64_t size = radeon_bo_size(bo_va->bo);  in radeon_vm_bo_set_addr()
453 	struct radeon_vm *vm = bo_va->vm;  in radeon_vm_bo_set_addr()
460 		eoffset = soffset + size - 1;  in radeon_vm_bo_set_addr()
462 			r = -EINVAL;  in radeon_vm_bo_set_addr()
467 		if (last_pfn >= rdev->vm_manager.max_pfn) {  in radeon_vm_bo_set_addr()
468 			dev_err(rdev->dev, "va above limit (0x%08X >= 0x%08X)\n",  in radeon_vm_bo_set_addr()
469 				last_pfn, rdev->vm_manager.max_pfn);  in radeon_vm_bo_set_addr()
470 			r = -EINVAL;  in radeon_vm_bo_set_addr()
478 	mutex_lock(&vm->mutex);  in radeon_vm_bo_set_addr()
483 		it = interval_tree_iter_first(&vm->va, soffset, eoffset);  in radeon_vm_bo_set_addr()
484 		if (it && it != &bo_va->it) {  in radeon_vm_bo_set_addr()
488 			dev_err(rdev->dev, "bo %p va 0x%010Lx conflict with "  in radeon_vm_bo_set_addr()
489 				"(bo %p 0x%010lx 0x%010lx)\n", bo_va->bo,  in radeon_vm_bo_set_addr()
490 				soffset, tmp->bo, tmp->it.start, tmp->it.last);  in radeon_vm_bo_set_addr()
491 			mutex_unlock(&vm->mutex);  in radeon_vm_bo_set_addr()
492 			r = -EINVAL;  in radeon_vm_bo_set_addr()
497 	if (bo_va->it.start || bo_va->it.last) {  in radeon_vm_bo_set_addr()
502 			mutex_unlock(&vm->mutex);  in radeon_vm_bo_set_addr()
503 			r = -ENOMEM;  in radeon_vm_bo_set_addr()
506 		tmp->it.start = bo_va->it.start;  in radeon_vm_bo_set_addr()
507 		tmp->it.last = bo_va->it.last;  in radeon_vm_bo_set_addr()
508 		tmp->vm = vm;  in radeon_vm_bo_set_addr()
509 		tmp->bo = radeon_bo_ref(bo_va->bo);  in radeon_vm_bo_set_addr()
511 		interval_tree_remove(&bo_va->it, &vm->va);  in radeon_vm_bo_set_addr()
512 		spin_lock(&vm->status_lock);  in radeon_vm_bo_set_addr()
513 		bo_va->it.start = 0;  in radeon_vm_bo_set_addr()
514 		bo_va->it.last = 0;  in radeon_vm_bo_set_addr()
515 		list_del_init(&bo_va->vm_status);  in radeon_vm_bo_set_addr()
516 		list_add(&tmp->vm_status, &vm->freed);  in radeon_vm_bo_set_addr()
517 		spin_unlock(&vm->status_lock);  in radeon_vm_bo_set_addr()
521 		spin_lock(&vm->status_lock);  in radeon_vm_bo_set_addr()
522 		bo_va->it.start = soffset;  in radeon_vm_bo_set_addr()
523 		bo_va->it.last = eoffset;  in radeon_vm_bo_set_addr()
524 		list_add(&bo_va->vm_status, &vm->cleared);  in radeon_vm_bo_set_addr()
525 		spin_unlock(&vm->status_lock);  in radeon_vm_bo_set_addr()
526 		interval_tree_insert(&bo_va->it, &vm->va);  in radeon_vm_bo_set_addr()
529 	bo_va->flags = flags;  in radeon_vm_bo_set_addr()
536 	if (eoffset > vm->max_pde_used)  in radeon_vm_bo_set_addr()
537 		vm->max_pde_used = eoffset;  in radeon_vm_bo_set_addr()
539 	radeon_bo_unreserve(bo_va->bo);  in radeon_vm_bo_set_addr()
545 		if (vm->page_tables[pt_idx].bo)  in radeon_vm_bo_set_addr()
549 		mutex_unlock(&vm->mutex);  in radeon_vm_bo_set_addr()
565 		mutex_lock(&vm->mutex);  in radeon_vm_bo_set_addr()
566 		if (vm->page_tables[pt_idx].bo) {  in radeon_vm_bo_set_addr()
568 			mutex_unlock(&vm->mutex);  in radeon_vm_bo_set_addr()
570 			mutex_lock(&vm->mutex);  in radeon_vm_bo_set_addr()
574 		vm->page_tables[pt_idx].addr = 0;  in radeon_vm_bo_set_addr()
575 		vm->page_tables[pt_idx].bo = pt;  in radeon_vm_bo_set_addr()
578 	mutex_unlock(&vm->mutex);  in radeon_vm_bo_set_addr()
582 	radeon_bo_unreserve(bo_va->bo);  in radeon_vm_bo_set_addr()
587  * radeon_vm_map_gart - get the physical address of a gart page
601 	result = rdev->gart.pages_entry[addr >> RADEON_GPU_PAGE_SHIFT];  in radeon_vm_map_gart()
608  * radeon_vm_page_flags - translate page flags to what the hw uses
629  * radeon_vm_update_page_directory - make sure that page directory is valid
638  * Global and local mutex must be locked!
643 	struct radeon_bo *pd = vm->page_directory;  in radeon_vm_update_page_directory()
655 	ndw += vm->max_pde_used * 6;  in radeon_vm_update_page_directory()
659 		return -ENOMEM;  in radeon_vm_update_page_directory()
667 	for (pt_idx = 0; pt_idx <= vm->max_pde_used; ++pt_idx) {  in radeon_vm_update_page_directory()
668 		struct radeon_bo *bo = vm->page_tables[pt_idx].bo;  in radeon_vm_update_page_directory()
675 		if (vm->page_tables[pt_idx].addr == pt)  in radeon_vm_update_page_directory()
677 		vm->page_tables[pt_idx].addr = pt;  in radeon_vm_update_page_directory()
704 		radeon_sync_resv(rdev, &ib.sync, pd->tbo.base.resv, true);  in radeon_vm_update_page_directory()
711 		ib.fence->is_vm_update = true;  in radeon_vm_update_page_directory()
720  * radeon_vm_frag_ptes - add fragment information to PTEs
729  * Global and local mutex must be locked!
738 	 * field in the PTE. When this field is set to a non-zero value, page  in radeon_vm_frag_ptes()
756 	uint64_t frag_flags = ((rdev->family == CHIP_CAYMAN) ||  in radeon_vm_frag_ptes()
757 			       (rdev->family == CHIP_ARUBA)) ?  in radeon_vm_frag_ptes()
759 	uint64_t frag_align = ((rdev->family == CHIP_CAYMAN) ||  in radeon_vm_frag_ptes()
760 			       (rdev->family == CHIP_ARUBA)) ? 0x200 : 0x80;  in radeon_vm_frag_ptes()
763 	uint64_t frag_end = pe_end & ~(frag_align - 1);  in radeon_vm_frag_ptes()
771 		count = (pe_end - pe_start) / 8;  in radeon_vm_frag_ptes()
779 		count = (frag_start - pe_start) / 8;  in radeon_vm_frag_ptes()
786 	count = (frag_end - frag_start) / 8;  in radeon_vm_frag_ptes()
793 		count = (pe_end - frag_end) / 8;  in radeon_vm_frag_ptes()
800  * radeon_vm_update_ptes - make sure that page tables are valid
810  * Update the page tables in the range @start - @end (cayman+).
812  * Global and local mutex must be locked!
820 	uint64_t mask = RADEON_VM_PTE_COUNT - 1;  in radeon_vm_update_ptes()
828 		struct radeon_bo *pt = vm->page_tables[pt_idx].bo;  in radeon_vm_update_ptes()
833 		radeon_sync_resv(rdev, &ib->sync, pt->tbo.base.resv, true);  in radeon_vm_update_ptes()
834 		r = dma_resv_reserve_fences(pt->tbo.base.resv, 1);  in radeon_vm_update_ptes()
839 			nptes = end - addr;  in radeon_vm_update_ptes()
841 			nptes = RADEON_VM_PTE_COUNT - (addr & mask);  in radeon_vm_update_ptes()
875  * radeon_vm_fence_pts - fence page tables after an update
882  * Fence the page tables in the range @start - @end (cayman+).
884  * Global and local mutex must be locked!
893 	end = (end - 1) >> radeon_vm_block_size;  in radeon_vm_fence_pts()
896 		radeon_bo_fence(vm->page_tables[i].bo, fence, true);  in radeon_vm_fence_pts()
900  * radeon_vm_bo_update - map a bo into the vm page table
907  * Returns 0 for success, -EINVAL for failure.
909  * Object have to be reserved and mutex must be locked!
915 	struct radeon_vm *vm = bo_va->vm;  in radeon_vm_bo_update()
922 	if (!bo_va->it.start) {  in radeon_vm_bo_update()
923 		dev_err(rdev->dev, "bo %p don't has a mapping in vm %p\n",  in radeon_vm_bo_update()
924 			bo_va->bo, vm);  in radeon_vm_bo_update()
925 		return -EINVAL;  in radeon_vm_bo_update()
928 	spin_lock(&vm->status_lock);  in radeon_vm_bo_update()
930 		if (list_empty(&bo_va->vm_status)) {  in radeon_vm_bo_update()
931 			spin_unlock(&vm->status_lock);  in radeon_vm_bo_update()
934 		list_del_init(&bo_va->vm_status);  in radeon_vm_bo_update()
936 		list_del(&bo_va->vm_status);  in radeon_vm_bo_update()
937 		list_add(&bo_va->vm_status, &vm->cleared);  in radeon_vm_bo_update()
939 	spin_unlock(&vm->status_lock);  in radeon_vm_bo_update()
941 	bo_va->flags &= ~RADEON_VM_PAGE_VALID;  in radeon_vm_bo_update()
942 	bo_va->flags &= ~RADEON_VM_PAGE_SYSTEM;  in radeon_vm_bo_update()
943 	bo_va->flags &= ~RADEON_VM_PAGE_SNOOPED;  in radeon_vm_bo_update()
944 	if (bo_va->bo && radeon_ttm_tt_is_readonly(rdev, bo_va->bo->tbo.ttm))  in radeon_vm_bo_update()
945 		bo_va->flags &= ~RADEON_VM_PAGE_WRITEABLE;  in radeon_vm_bo_update()
948 		addr = (u64)mem->start << PAGE_SHIFT;  in radeon_vm_bo_update()
949 		if (mem->mem_type != TTM_PL_SYSTEM)  in radeon_vm_bo_update()
950 			bo_va->flags |= RADEON_VM_PAGE_VALID;  in radeon_vm_bo_update()
952 		if (mem->mem_type == TTM_PL_TT) {  in radeon_vm_bo_update()
953 			bo_va->flags |= RADEON_VM_PAGE_SYSTEM;  in radeon_vm_bo_update()
954 			if (!(bo_va->bo->flags & (RADEON_GEM_GTT_WC | RADEON_GEM_GTT_UC)))  in radeon_vm_bo_update()
955 				bo_va->flags |= RADEON_VM_PAGE_SNOOPED;  in radeon_vm_bo_update()
958 			addr += rdev->vm_manager.vram_base_offset;  in radeon_vm_bo_update()
966 	nptes = bo_va->it.last - bo_va->it.start + 1;  in radeon_vm_bo_update()
975 	flags = radeon_vm_page_flags(bo_va->flags);  in radeon_vm_bo_update()
997 		return -ENOMEM;  in radeon_vm_bo_update()
1004 	if (!(bo_va->flags & RADEON_VM_PAGE_VALID)) {  in radeon_vm_bo_update()
1008 			radeon_sync_fence(&ib.sync, vm->ids[i].last_id_use);  in radeon_vm_bo_update()
1011 	r = radeon_vm_update_ptes(rdev, vm, &ib, bo_va->it.start,  in radeon_vm_bo_update()
1012 				  bo_va->it.last + 1, addr,  in radeon_vm_bo_update()
1013 				  radeon_vm_page_flags(bo_va->flags));  in radeon_vm_bo_update()
1027 	ib.fence->is_vm_update = true;  in radeon_vm_bo_update()
1028 	radeon_vm_fence_pts(vm, bo_va->it.start, bo_va->it.last + 1, ib.fence);  in radeon_vm_bo_update()
1029 	radeon_fence_unref(&bo_va->last_pt_update);  in radeon_vm_bo_update()
1030 	bo_va->last_pt_update = radeon_fence_ref(ib.fence);  in radeon_vm_bo_update()
1037  * radeon_vm_clear_freed - clear freed BOs in the PT
1045  * PTs have to be reserved and mutex must be locked!
1053 	spin_lock(&vm->status_lock);  in radeon_vm_clear_freed()
1054 	while (!list_empty(&vm->freed)) {  in radeon_vm_clear_freed()
1055 		bo_va = list_first_entry(&vm->freed,  in radeon_vm_clear_freed()
1057 		spin_unlock(&vm->status_lock);  in radeon_vm_clear_freed()
1060 		radeon_bo_unref(&bo_va->bo);  in radeon_vm_clear_freed()
1061 		radeon_fence_unref(&bo_va->last_pt_update);  in radeon_vm_clear_freed()
1062 		spin_lock(&vm->status_lock);  in radeon_vm_clear_freed()
1063 		list_del(&bo_va->vm_status);  in radeon_vm_clear_freed()
1069 	spin_unlock(&vm->status_lock);  in radeon_vm_clear_freed()
1075  * radeon_vm_clear_invalids - clear invalidated BOs in the PT
1083  * PTs have to be reserved and mutex must be locked!
1091 	spin_lock(&vm->status_lock);  in radeon_vm_clear_invalids()
1092 	while (!list_empty(&vm->invalidated)) {  in radeon_vm_clear_invalids()
1093 		bo_va = list_first_entry(&vm->invalidated,  in radeon_vm_clear_invalids()
1095 		spin_unlock(&vm->status_lock);  in radeon_vm_clear_invalids()
1101 		spin_lock(&vm->status_lock);  in radeon_vm_clear_invalids()
1103 	spin_unlock(&vm->status_lock);  in radeon_vm_clear_invalids()
1109  * radeon_vm_bo_rmv - remove a bo to a specific vm
1114  * Remove @bo_va->bo from the requested vm (cayman+).
1121 	struct radeon_vm *vm = bo_va->vm;  in radeon_vm_bo_rmv()
1123 	list_del(&bo_va->bo_list);  in radeon_vm_bo_rmv()
1125 	mutex_lock(&vm->mutex);  in radeon_vm_bo_rmv()
1126 	if (bo_va->it.start || bo_va->it.last)  in radeon_vm_bo_rmv()
1127 		interval_tree_remove(&bo_va->it, &vm->va);  in radeon_vm_bo_rmv()
1129 	spin_lock(&vm->status_lock);  in radeon_vm_bo_rmv()
1130 	list_del(&bo_va->vm_status);  in radeon_vm_bo_rmv()
1131 	if (bo_va->it.start || bo_va->it.last) {  in radeon_vm_bo_rmv()
1132 		bo_va->bo = radeon_bo_ref(bo_va->bo);  in radeon_vm_bo_rmv()
1133 		list_add(&bo_va->vm_status, &vm->freed);  in radeon_vm_bo_rmv()
1135 		radeon_fence_unref(&bo_va->last_pt_update);  in radeon_vm_bo_rmv()
1138 	spin_unlock(&vm->status_lock);  in radeon_vm_bo_rmv()
1140 	mutex_unlock(&vm->mutex);  in radeon_vm_bo_rmv()
1144  * radeon_vm_bo_invalidate - mark the bo as invalid
1156 	list_for_each_entry(bo_va, &bo->va, bo_list) {  in radeon_vm_bo_invalidate()
1157 		spin_lock(&bo_va->vm->status_lock);  in radeon_vm_bo_invalidate()
1158 		if (list_empty(&bo_va->vm_status) &&  in radeon_vm_bo_invalidate()
1159 		    (bo_va->it.start || bo_va->it.last))  in radeon_vm_bo_invalidate()
1160 			list_add(&bo_va->vm_status, &bo_va->vm->invalidated);  in radeon_vm_bo_invalidate()
1161 		spin_unlock(&bo_va->vm->status_lock);  in radeon_vm_bo_invalidate()
1166  * radeon_vm_init - initialize a vm instance
1180 	vm->ib_bo_va = NULL;  in radeon_vm_init()
1182 		vm->ids[i].id = 0;  in radeon_vm_init()
1183 		vm->ids[i].flushed_updates = NULL;  in radeon_vm_init()
1184 		vm->ids[i].last_id_use = NULL;  in radeon_vm_init()
1186 	mutex_init(&vm->mutex);  in radeon_vm_init()
1187 	vm->va = RB_ROOT_CACHED;  in radeon_vm_init()
1188 	spin_lock_init(&vm->status_lock);  in radeon_vm_init()
1189 	INIT_LIST_HEAD(&vm->invalidated);  in radeon_vm_init()
1190 	INIT_LIST_HEAD(&vm->freed);  in radeon_vm_init()
1191 	INIT_LIST_HEAD(&vm->cleared);  in radeon_vm_init()
1198 	vm->page_tables = kzalloc(pts_size, GFP_KERNEL);  in radeon_vm_init()
1199 	if (vm->page_tables == NULL) {  in radeon_vm_init()
1201 		return -ENOMEM;  in radeon_vm_init()
1206 			     NULL, &vm->page_directory);  in radeon_vm_init()
1208 		kfree(vm->page_tables);  in radeon_vm_init()
1209 		vm->page_tables = NULL;  in radeon_vm_init()
1212 	r = radeon_vm_clear_bo(rdev, vm->page_directory);  in radeon_vm_init()
1214 		radeon_bo_unref(&vm->page_directory);  in radeon_vm_init()
1215 		vm->page_directory = NULL;  in radeon_vm_init()
1216 		kfree(vm->page_tables);  in radeon_vm_init()
1217 		vm->page_tables = NULL;  in radeon_vm_init()
1225  * radeon_vm_fini - tear down a vm instance
1238 	if (!RB_EMPTY_ROOT(&vm->va.rb_root))  in radeon_vm_fini()
1239 		dev_err(rdev->dev, "still active bo inside vm\n");  in radeon_vm_fini()
1242 					     &vm->va.rb_root, it.rb) {  in radeon_vm_fini()
1243 		interval_tree_remove(&bo_va->it, &vm->va);  in radeon_vm_fini()
1244 		r = radeon_bo_reserve(bo_va->bo, false);  in radeon_vm_fini()
1246 			list_del_init(&bo_va->bo_list);  in radeon_vm_fini()
1247 			radeon_bo_unreserve(bo_va->bo);  in radeon_vm_fini()
1248 			radeon_fence_unref(&bo_va->last_pt_update);  in radeon_vm_fini()
1252 	list_for_each_entry_safe(bo_va, tmp, &vm->freed, vm_status) {  in radeon_vm_fini()
1253 		radeon_bo_unref(&bo_va->bo);  in radeon_vm_fini()
1254 		radeon_fence_unref(&bo_va->last_pt_update);  in radeon_vm_fini()
1259 		radeon_bo_unref(&vm->page_tables[i].bo);  in radeon_vm_fini()
1260 	kfree(vm->page_tables);  in radeon_vm_fini()
1262 	radeon_bo_unref(&vm->page_directory);  in radeon_vm_fini()
1265 		radeon_fence_unref(&vm->ids[i].flushed_updates);  in radeon_vm_fini()
1266 		radeon_fence_unref(&vm->ids[i].last_id_use);  in radeon_vm_fini()
1269 	mutex_destroy(&vm->mutex);  in radeon_vm_fini()