79 	struct device_state *dev_state;  member
95 static void free_pasid_states(struct device_state *dev_state);
109 	struct device_state *dev_state;  in __get_device_state()  local
111 	list_for_each_entry(dev_state, &state_list, list) {  in __get_device_state()
112 		if (dev_state->devid == devid)  in __get_device_state()
113 			return dev_state;  in __get_device_state()
121 	struct device_state *dev_state;  in get_device_state()  local
125 	dev_state = __get_device_state(devid);  in get_device_state()
126 	if (dev_state != NULL)  in get_device_state()
127 		atomic_inc(&dev_state->count);  in get_device_state()
130 	return dev_state;  in get_device_state()
133 static void free_device_state(struct device_state *dev_state)  in free_device_state()  argument
141 	group = iommu_group_get(&dev_state->pdev->dev);  in free_device_state()
145 	iommu_detach_group(dev_state->domain, group);  in free_device_state()
150 	iommu_domain_free(dev_state->domain);  in free_device_state()
153 	kfree(dev_state);  in free_device_state()
156 static void put_device_state(struct device_state *dev_state)  in put_device_state()  argument
158 	if (atomic_dec_and_test(&dev_state->count))  in put_device_state()
159 		wake_up(&dev_state->wq);  in put_device_state()
163 static struct pasid_state **__get_pasid_state_ptr(struct device_state *dev_state,  in __get_pasid_state_ptr()  argument
169 	level = dev_state->pasid_levels;  in __get_pasid_state_ptr()
170 	root  = dev_state->states;  in __get_pasid_state_ptr()
196 static int set_pasid_state(struct device_state *dev_state,  in set_pasid_state()  argument
204 	spin_lock_irqsave(&dev_state->lock, flags);  in set_pasid_state()
205 	ptr = __get_pasid_state_ptr(dev_state, pasid, true);  in set_pasid_state()
220 	spin_unlock_irqrestore(&dev_state->lock, flags);  in set_pasid_state()
225 static void clear_pasid_state(struct device_state *dev_state, int pasid)  in clear_pasid_state()  argument
230 	spin_lock_irqsave(&dev_state->lock, flags);  in clear_pasid_state()
231 	ptr = __get_pasid_state_ptr(dev_state, pasid, true);  in clear_pasid_state()
239 	spin_unlock_irqrestore(&dev_state->lock, flags);  in clear_pasid_state()
242 static struct pasid_state *get_pasid_state(struct device_state *dev_state,  in get_pasid_state()  argument
248 	spin_lock_irqsave(&dev_state->lock, flags);  in get_pasid_state()
249 	ptr = __get_pasid_state_ptr(dev_state, pasid, false);  in get_pasid_state()
259 	spin_unlock_irqrestore(&dev_state->lock, flags);  in get_pasid_state()
330 static void free_pasid_states(struct device_state *dev_state)  in free_pasid_states()  argument
335 	for (i = 0; i < dev_state->max_pasids; ++i) {  in free_pasid_states()
336 		pasid_state = get_pasid_state(dev_state, i);  in free_pasid_states()
352 		put_device_state(dev_state);  in free_pasid_states()
355 	if (dev_state->pasid_levels == 2)  in free_pasid_states()
356 		free_pasid_states_level2(dev_state->states);  in free_pasid_states()
357 	else if (dev_state->pasid_levels == 1)  in free_pasid_states()
358 		free_pasid_states_level1(dev_state->states);  in free_pasid_states()
360 		BUG_ON(dev_state->pasid_levels != 0);  in free_pasid_states()
362 	free_page((unsigned long)dev_state->states);  in free_pasid_states()
374 	struct device_state *dev_state;  in __mn_flush_page()  local
377 	dev_state   = pasid_state->device_state;  in __mn_flush_page()
379 	amd_iommu_flush_page(dev_state->domain, pasid_state->pasid, address);  in __mn_flush_page()
405 	struct device_state *dev_state;  in mn_invalidate_range()  local
408 	dev_state   = pasid_state->device_state;  in mn_invalidate_range()
411 		amd_iommu_flush_page(dev_state->domain, pasid_state->pasid,  in mn_invalidate_range()
414 		amd_iommu_flush_tlb(dev_state->domain, pasid_state->pasid);  in mn_invalidate_range()
420 	struct device_state *dev_state;  in mn_release()  local
426 	dev_state      = pasid_state->device_state;  in mn_release()
429 	if (run_inv_ctx_cb && dev_state->inv_ctx_cb)  in mn_release()
430 		dev_state->inv_ctx_cb(dev_state->pdev, pasid_state->pasid);  in mn_release()
452 static void finish_pri_tag(struct device_state *dev_state,  in finish_pri_tag()  argument
461 		amd_iommu_complete_ppr(dev_state->pdev, pasid_state->pasid,  in finish_pri_tag()
473 	if (!fault->dev_state->inv_ppr_cb) {  in handle_fault_error()
478 	status = fault->dev_state->inv_ppr_cb(fault->dev_state->pdev,  in handle_fault_error()
553 	finish_pri_tag(fault->dev_state, fault->state, fault->tag);  in do_fault()
564 	struct device_state *dev_state;  in ppr_notifier()  local
576 	dev_state = get_device_state(iommu_fault->device_id);  in ppr_notifier()
577 	if (dev_state == NULL)  in ppr_notifier()
580 	pasid_state = get_pasid_state(dev_state, iommu_fault->pasid);  in ppr_notifier()
583 		amd_iommu_complete_ppr(dev_state->pdev, iommu_fault->pasid,  in ppr_notifier()
597 		finish_pri_tag(dev_state, pasid_state, tag);  in ppr_notifier()
601 	fault->dev_state = dev_state;  in ppr_notifier()
619 	put_device_state(dev_state);  in ppr_notifier()
633 	struct device_state *dev_state;  in amd_iommu_bind_pasid()  local
644 	dev_state = get_device_state(devid);  in amd_iommu_bind_pasid()
646 	if (dev_state == NULL)  in amd_iommu_bind_pasid()
650 	if (pasid < 0 || pasid >= dev_state->max_pasids)  in amd_iommu_bind_pasid()
665 	pasid_state->device_state = dev_state;  in amd_iommu_bind_pasid()
676 	ret = set_pasid_state(dev_state, pasid_state, pasid);  in amd_iommu_bind_pasid()
680 	ret = amd_iommu_domain_set_gcr3(dev_state->domain, pasid,  in amd_iommu_bind_pasid()
698 	clear_pasid_state(dev_state, pasid);  in amd_iommu_bind_pasid()
708 	put_device_state(dev_state);  in amd_iommu_bind_pasid()
717 	struct device_state *dev_state;  in amd_iommu_unbind_pasid()  local
726 	dev_state = get_device_state(devid);  in amd_iommu_unbind_pasid()
727 	if (dev_state == NULL)  in amd_iommu_unbind_pasid()
730 	if (pasid < 0 || pasid >= dev_state->max_pasids)  in amd_iommu_unbind_pasid()
733 	pasid_state = get_pasid_state(dev_state, pasid);  in amd_iommu_unbind_pasid()
743 	clear_pasid_state(dev_state, pasid_state->pasid);  in amd_iommu_unbind_pasid()
755 	put_device_state(dev_state);  in amd_iommu_unbind_pasid()
758 	put_device_state(dev_state);  in amd_iommu_unbind_pasid()
764 	struct device_state *dev_state;  in amd_iommu_init_device()  local
780 	dev_state = kzalloc(sizeof(*dev_state), GFP_KERNEL);  in amd_iommu_init_device()
781 	if (dev_state == NULL)  in amd_iommu_init_device()
784 	spin_lock_init(&dev_state->lock);  in amd_iommu_init_device()
785 	init_waitqueue_head(&dev_state->wq);  in amd_iommu_init_device()
786 	dev_state->pdev  = pdev;  in amd_iommu_init_device()
787 	dev_state->devid = devid;  in amd_iommu_init_device()
790 	for (dev_state->pasid_levels = 0; (tmp - 1) & ~0x1ff; tmp >>= 9)  in amd_iommu_init_device()
791 		dev_state->pasid_levels += 1;  in amd_iommu_init_device()
793 	atomic_set(&dev_state->count, 1);  in amd_iommu_init_device()
794 	dev_state->max_pasids = pasids;  in amd_iommu_init_device()
797 	dev_state->states = (void *)get_zeroed_page(GFP_KERNEL);  in amd_iommu_init_device()
798 	if (dev_state->states == NULL)  in amd_iommu_init_device()
801 	dev_state->domain = iommu_domain_alloc(&pci_bus_type);  in amd_iommu_init_device()
802 	if (dev_state->domain == NULL)  in amd_iommu_init_device()
805 	amd_iommu_domain_direct_map(dev_state->domain);  in amd_iommu_init_device()
807 	ret = amd_iommu_domain_enable_v2(dev_state->domain, pasids);  in amd_iommu_init_device()
815 	ret = iommu_attach_group(dev_state->domain, group);  in amd_iommu_init_device()
829 	list_add_tail(&dev_state->list, &state_list);  in amd_iommu_init_device()
839 	iommu_domain_free(dev_state->domain);  in amd_iommu_init_device()
842 	free_page((unsigned long)dev_state->states);  in amd_iommu_init_device()
845 	kfree(dev_state);  in amd_iommu_init_device()
853 	struct device_state *dev_state;  in amd_iommu_free_device()  local
864 	dev_state = __get_device_state(devid);  in amd_iommu_free_device()
865 	if (dev_state == NULL) {  in amd_iommu_free_device()
870 	list_del(&dev_state->list);  in amd_iommu_free_device()
875 	free_pasid_states(dev_state);  in amd_iommu_free_device()
877 	put_device_state(dev_state);  in amd_iommu_free_device()
882 	wait_event(dev_state->wq, !atomic_read(&dev_state->count));  in amd_iommu_free_device()
883 	free_device_state(dev_state);  in amd_iommu_free_device()
890 	struct device_state *dev_state;  in amd_iommu_set_invalid_ppr_cb()  local
903 	dev_state = __get_device_state(devid);  in amd_iommu_set_invalid_ppr_cb()
904 	if (dev_state == NULL)  in amd_iommu_set_invalid_ppr_cb()
907 	dev_state->inv_ppr_cb = cb;  in amd_iommu_set_invalid_ppr_cb()
921 	struct device_state *dev_state;  in amd_iommu_set_invalidate_ctx_cb()  local
934 	dev_state = __get_device_state(devid);  in amd_iommu_set_invalidate_ctx_cb()
935 	if (dev_state == NULL)  in amd_iommu_set_invalidate_ctx_cb()
938 	dev_state->inv_ctx_cb = cb;  in amd_iommu_set_invalidate_ctx_cb()
981 	struct device_state *dev_state;  in amd_iommu_v2_exit()  local
996 		dev_state = get_device_state(i);  in amd_iommu_v2_exit()
998 		if (dev_state == NULL)  in amd_iommu_v2_exit()
1003 		put_device_state(dev_state);  in amd_iommu_v2_exit()
1004 		amd_iommu_free_device(dev_state->pdev);  in amd_iommu_v2_exit()