15 struct drm_i915_gem_object *alloc_pt_lmem(struct i915_address_space *vm, int sz)  in alloc_pt_lmem()  argument
31 	obj = __i915_gem_object_create_lmem_with_ps(vm->i915, sz, sz, 0);  in alloc_pt_lmem()
33 	 * Ensure all paging structures for this vm share the same dma-resv  in alloc_pt_lmem()
38 		obj->base.resv = i915_vm_resv_get(vm);  in alloc_pt_lmem()
39 		obj->shares_resv_from = vm;  in alloc_pt_lmem()
45 struct drm_i915_gem_object *alloc_pt_dma(struct i915_address_space *vm, int sz)  in alloc_pt_dma()  argument
49 	if (I915_SELFTEST_ONLY(should_fail(&vm->fault_attr, 1)))  in alloc_pt_dma()
50 		i915_gem_shrink_all(vm->i915);  in alloc_pt_dma()
52 	obj = i915_gem_object_create_internal(vm->i915, sz);  in alloc_pt_dma()
54 	 * Ensure all paging structures for this vm share the same dma-resv  in alloc_pt_dma()
59 		obj->base.resv = i915_vm_resv_get(vm);  in alloc_pt_dma()
60 		obj->shares_resv_from = vm;  in alloc_pt_dma()
66 int map_pt_dma(struct i915_address_space *vm, struct drm_i915_gem_object *obj)  in map_pt_dma()  argument
71 	type = i915_coherent_map_type(vm->i915, obj, true);  in map_pt_dma()
80 int map_pt_dma_locked(struct i915_address_space *vm, struct drm_i915_gem_object *obj)  in map_pt_dma_locked()  argument
85 	type = i915_coherent_map_type(vm->i915, obj, true);  in map_pt_dma_locked()
94 void __i915_vm_close(struct i915_address_space *vm)  in __i915_vm_close()  argument
98 	if (!atomic_dec_and_mutex_lock(&vm->open, &vm->mutex))  in __i915_vm_close()
101 	list_for_each_entry_safe(vma, vn, &vm->bound_list, vm_link) {  in __i915_vm_close()
114 	GEM_BUG_ON(!list_empty(&vm->bound_list));  in __i915_vm_close()
116 	mutex_unlock(&vm->mutex);  in __i915_vm_close()
119 /* lock the vm into the current ww, if we lock one, we lock all */
120 int i915_vm_lock_objects(struct i915_address_space *vm,  in i915_vm_lock_objects()  argument
123 	if (vm->scratch[0]->base.resv == &vm->_resv) {  in i915_vm_lock_objects()
124 		return i915_gem_object_lock(vm->scratch[0], ww);  in i915_vm_lock_objects()
126 		struct i915_ppgtt *ppgtt = i915_vm_to_ppgtt(vm);  in i915_vm_lock_objects()
133 void i915_address_space_fini(struct i915_address_space *vm)  in i915_address_space_fini()  argument
135 	drm_mm_takedown(&vm->mm);  in i915_address_space_fini()
136 	mutex_destroy(&vm->mutex);  in i915_address_space_fini()
148 	struct i915_address_space *vm =  in i915_vm_resv_release()  local
149 		container_of(kref, typeof(*vm), resv_ref);  in i915_vm_resv_release()
151 	dma_resv_fini(&vm->_resv);  in i915_vm_resv_release()
152 	kfree(vm);  in i915_vm_resv_release()
157 	struct i915_address_space *vm =  in __i915_vm_release()  local
160 	vm->cleanup(vm);  in __i915_vm_release()
161 	i915_address_space_fini(vm);  in __i915_vm_release()
163 	i915_vm_resv_put(vm);  in __i915_vm_release()
168 	struct i915_address_space *vm =  in i915_vm_release()  local
171 	GEM_BUG_ON(i915_is_ggtt(vm));  in i915_vm_release()
172 	trace_i915_ppgtt_release(vm);  in i915_vm_release()
174 	queue_rcu_work(vm->i915->wq, &vm->rcu);  in i915_vm_release()
177 void i915_address_space_init(struct i915_address_space *vm, int subclass)  in i915_address_space_init()  argument
179 	kref_init(&vm->ref);  in i915_address_space_init()
185 	if (!kref_read(&vm->resv_ref))  in i915_address_space_init()
186 		kref_init(&vm->resv_ref);  in i915_address_space_init()
188 	INIT_RCU_WORK(&vm->rcu, __i915_vm_release);  in i915_address_space_init()
189 	atomic_set(&vm->open, 1);  in i915_address_space_init()
192 	 * The vm->mutex must be reclaim safe (for use in the shrinker).  in i915_address_space_init()
196 	mutex_init(&vm->mutex);  in i915_address_space_init()
197 	lockdep_set_subclass(&vm->mutex, subclass);  in i915_address_space_init()
199 	if (!intel_vm_no_concurrent_access_wa(vm->i915)) {  in i915_address_space_init()
200 		i915_gem_shrinker_taints_mutex(vm->i915, &vm->mutex);  in i915_address_space_init()
204 		 * which is allowed to allocate memory. This means &vm->mutex  in i915_address_space_init()
210 		mutex_acquire(&vm->mutex.dep_map, 0, 0, _THIS_IP_);  in i915_address_space_init()
212 		mutex_release(&vm->mutex.dep_map, _THIS_IP_);  in i915_address_space_init()
214 	dma_resv_init(&vm->_resv);  in i915_address_space_init()
216 	GEM_BUG_ON(!vm->total);  in i915_address_space_init()
217 	drm_mm_init(&vm->mm, 0, vm->total);  in i915_address_space_init()
218 	vm->mm.head_node.color = I915_COLOR_UNEVICTABLE;  in i915_address_space_init()
220 	INIT_LIST_HEAD(&vm->bound_list);  in i915_address_space_init()
277 int setup_scratch_page(struct i915_address_space *vm)  in setup_scratch_page()  argument
289 	 * scratch (read-only) between all vm, we create one 64k scratch page  in setup_scratch_page()
293 	if (i915_vm_is_4lvl(vm) &&  in setup_scratch_page()
294 	    HAS_PAGE_SIZES(vm->i915, I915_GTT_PAGE_SIZE_64K))  in setup_scratch_page()
300 		obj = vm->alloc_pt_dma(vm, size);  in setup_scratch_page()
304 		if (map_pt_dma(vm, obj))  in setup_scratch_page()
326 		vm->scratch[0] = obj;  in setup_scratch_page()
327 		vm->scratch_order = get_order(size);  in setup_scratch_page()
340 void free_scratch(struct i915_address_space *vm)  in free_scratch()  argument
344 	for (i = 0; i <= vm->top; i++)  in free_scratch()
345 		i915_gem_object_put(vm->scratch[i]);  in free_scratch()
538 __vm_create_scratch_for_read(struct i915_address_space *vm, unsigned long size)  in __vm_create_scratch_for_read()  argument
543 	obj = i915_gem_object_create_internal(vm->i915, PAGE_ALIGN(size));  in __vm_create_scratch_for_read()
549 	vma = i915_vma_instance(obj, vm, NULL);  in __vm_create_scratch_for_read()
559 __vm_create_scratch_for_read_pinned(struct i915_address_space *vm, unsigned long size)  in __vm_create_scratch_for_read_pinned()  argument
564 	vma = __vm_create_scratch_for_read(vm, size);  in __vm_create_scratch_for_read_pinned()