69 	struct device_state *dev_state;  member
85 static void free_pasid_states(struct device_state *dev_state);
99 	struct device_state *dev_state;  in __get_device_state()  local
101 	list_for_each_entry(dev_state, &state_list, list) {  in __get_device_state()
102 		if (dev_state->devid == devid)  in __get_device_state()
103 			return dev_state;  in __get_device_state()
111 	struct device_state *dev_state;  in get_device_state()  local
115 	dev_state = __get_device_state(devid);  in get_device_state()
116 	if (dev_state != NULL)  in get_device_state()
117 		atomic_inc(&dev_state->count);  in get_device_state()
120 	return dev_state;  in get_device_state()
123 static void free_device_state(struct device_state *dev_state)  in free_device_state()  argument
131 	group = iommu_group_get(&dev_state->pdev->dev);  in free_device_state()
135 	iommu_detach_group(dev_state->domain, group);  in free_device_state()
140 	iommu_domain_free(dev_state->domain);  in free_device_state()
143 	kfree(dev_state);  in free_device_state()
146 static void put_device_state(struct device_state *dev_state)  in put_device_state()  argument
148 	if (atomic_dec_and_test(&dev_state->count))  in put_device_state()
149 		wake_up(&dev_state->wq);  in put_device_state()
153 static struct pasid_state **__get_pasid_state_ptr(struct device_state *dev_state,  in __get_pasid_state_ptr()  argument
159 	level = dev_state->pasid_levels;  in __get_pasid_state_ptr()
160 	root  = dev_state->states;  in __get_pasid_state_ptr()
186 static int set_pasid_state(struct device_state *dev_state,  in set_pasid_state()  argument
194 	spin_lock_irqsave(&dev_state->lock, flags);  in set_pasid_state()
195 	ptr = __get_pasid_state_ptr(dev_state, pasid, true);  in set_pasid_state()
210 	spin_unlock_irqrestore(&dev_state->lock, flags);  in set_pasid_state()
215 static void clear_pasid_state(struct device_state *dev_state, u32 pasid)  in clear_pasid_state()  argument
220 	spin_lock_irqsave(&dev_state->lock, flags);  in clear_pasid_state()
221 	ptr = __get_pasid_state_ptr(dev_state, pasid, true);  in clear_pasid_state()
229 	spin_unlock_irqrestore(&dev_state->lock, flags);  in clear_pasid_state()
232 static struct pasid_state *get_pasid_state(struct device_state *dev_state,  in get_pasid_state()  argument
238 	spin_lock_irqsave(&dev_state->lock, flags);  in get_pasid_state()
239 	ptr = __get_pasid_state_ptr(dev_state, pasid, false);  in get_pasid_state()
249 	spin_unlock_irqrestore(&dev_state->lock, flags);  in get_pasid_state()
320 static void free_pasid_states(struct device_state *dev_state)  in free_pasid_states()  argument
325 	for (i = 0; i < dev_state->max_pasids; ++i) {  in free_pasid_states()
326 		pasid_state = get_pasid_state(dev_state, i);  in free_pasid_states()
342 		put_device_state(dev_state);  in free_pasid_states()
345 	if (dev_state->pasid_levels == 2)  in free_pasid_states()
346 		free_pasid_states_level2(dev_state->states);  in free_pasid_states()
347 	else if (dev_state->pasid_levels == 1)  in free_pasid_states()
348 		free_pasid_states_level1(dev_state->states);  in free_pasid_states()
350 		BUG_ON(dev_state->pasid_levels != 0);  in free_pasid_states()
352 	free_page((unsigned long)dev_state->states);  in free_pasid_states()
365 	struct device_state *dev_state;  in mn_invalidate_range()  local
368 	dev_state   = pasid_state->device_state;  in mn_invalidate_range()
371 		amd_iommu_flush_page(dev_state->domain, pasid_state->pasid,  in mn_invalidate_range()
374 		amd_iommu_flush_tlb(dev_state->domain, pasid_state->pasid);  in mn_invalidate_range()
380 	struct device_state *dev_state;  in mn_release()  local
386 	dev_state      = pasid_state->device_state;  in mn_release()
389 	if (run_inv_ctx_cb && dev_state->inv_ctx_cb)  in mn_release()
390 		dev_state->inv_ctx_cb(dev_state->pdev, pasid_state->pasid);  in mn_release()
410 static void finish_pri_tag(struct device_state *dev_state,  in finish_pri_tag()  argument
419 		amd_iommu_complete_ppr(dev_state->pdev, pasid_state->pasid,  in finish_pri_tag()
431 	if (!fault->dev_state->inv_ppr_cb) {  in handle_fault_error()
436 	status = fault->dev_state->inv_ppr_cb(fault->dev_state->pdev,  in handle_fault_error()
507 	finish_pri_tag(fault->dev_state, fault->state, fault->tag);  in do_fault()
518 	struct device_state *dev_state;  in ppr_notifier()  local
545 	dev_state = get_device_state(iommu_fault->device_id);  in ppr_notifier()
546 	if (dev_state == NULL)  in ppr_notifier()
549 	pasid_state = get_pasid_state(dev_state, iommu_fault->pasid);  in ppr_notifier()
552 		amd_iommu_complete_ppr(dev_state->pdev, iommu_fault->pasid,  in ppr_notifier()
566 		finish_pri_tag(dev_state, pasid_state, tag);  in ppr_notifier()
570 	fault->dev_state = dev_state;  in ppr_notifier()
588 	put_device_state(dev_state);  in ppr_notifier()
602 	struct device_state *dev_state;  in amd_iommu_bind_pasid()  local
613 	dev_state = get_device_state(devid);  in amd_iommu_bind_pasid()
615 	if (dev_state == NULL)  in amd_iommu_bind_pasid()
619 	if (pasid >= dev_state->max_pasids)  in amd_iommu_bind_pasid()
634 	pasid_state->device_state = dev_state;  in amd_iommu_bind_pasid()
645 	ret = set_pasid_state(dev_state, pasid_state, pasid);  in amd_iommu_bind_pasid()
649 	ret = amd_iommu_domain_set_gcr3(dev_state->domain, pasid,  in amd_iommu_bind_pasid()
667 	clear_pasid_state(dev_state, pasid);  in amd_iommu_bind_pasid()
677 	put_device_state(dev_state);  in amd_iommu_bind_pasid()
686 	struct device_state *dev_state;  in amd_iommu_unbind_pasid()  local
695 	dev_state = get_device_state(devid);  in amd_iommu_unbind_pasid()
696 	if (dev_state == NULL)  in amd_iommu_unbind_pasid()
699 	if (pasid >= dev_state->max_pasids)  in amd_iommu_unbind_pasid()
702 	pasid_state = get_pasid_state(dev_state, pasid);  in amd_iommu_unbind_pasid()
712 	clear_pasid_state(dev_state, pasid_state->pasid);  in amd_iommu_unbind_pasid()
724 	put_device_state(dev_state);  in amd_iommu_unbind_pasid()
727 	put_device_state(dev_state);  in amd_iommu_unbind_pasid()
733 	struct device_state *dev_state;  in amd_iommu_init_device()  local
756 	dev_state = kzalloc(sizeof(*dev_state), GFP_KERNEL);  in amd_iommu_init_device()
757 	if (dev_state == NULL)  in amd_iommu_init_device()
760 	spin_lock_init(&dev_state->lock);  in amd_iommu_init_device()
761 	init_waitqueue_head(&dev_state->wq);  in amd_iommu_init_device()
762 	dev_state->pdev  = pdev;  in amd_iommu_init_device()
763 	dev_state->devid = devid;  in amd_iommu_init_device()
766 	for (dev_state->pasid_levels = 0; (tmp - 1) & ~0x1ff; tmp >>= 9)  in amd_iommu_init_device()
767 		dev_state->pasid_levels += 1;  in amd_iommu_init_device()
769 	atomic_set(&dev_state->count, 1);  in amd_iommu_init_device()
770 	dev_state->max_pasids = pasids;  in amd_iommu_init_device()
773 	dev_state->states = (void *)get_zeroed_page(GFP_KERNEL);  in amd_iommu_init_device()
774 	if (dev_state->states == NULL)  in amd_iommu_init_device()
777 	dev_state->domain = iommu_domain_alloc(&pci_bus_type);  in amd_iommu_init_device()
778 	if (dev_state->domain == NULL)  in amd_iommu_init_device()
781 	amd_iommu_domain_direct_map(dev_state->domain);  in amd_iommu_init_device()
783 	ret = amd_iommu_domain_enable_v2(dev_state->domain, pasids);  in amd_iommu_init_device()
793 	ret = iommu_attach_group(dev_state->domain, group);  in amd_iommu_init_device()
807 	list_add_tail(&dev_state->list, &state_list);  in amd_iommu_init_device()
817 	iommu_domain_free(dev_state->domain);  in amd_iommu_init_device()
820 	free_page((unsigned long)dev_state->states);  in amd_iommu_init_device()
823 	kfree(dev_state);  in amd_iommu_init_device()
831 	struct device_state *dev_state;  in amd_iommu_free_device()  local
842 	dev_state = __get_device_state(devid);  in amd_iommu_free_device()
843 	if (dev_state == NULL) {  in amd_iommu_free_device()
848 	list_del(&dev_state->list);  in amd_iommu_free_device()
853 	free_pasid_states(dev_state);  in amd_iommu_free_device()
855 	put_device_state(dev_state);  in amd_iommu_free_device()
860 	wait_event(dev_state->wq, !atomic_read(&dev_state->count));  in amd_iommu_free_device()
861 	free_device_state(dev_state);  in amd_iommu_free_device()
868 	struct device_state *dev_state;  in amd_iommu_set_invalid_ppr_cb()  local
881 	dev_state = __get_device_state(devid);  in amd_iommu_set_invalid_ppr_cb()
882 	if (dev_state == NULL)  in amd_iommu_set_invalid_ppr_cb()
885 	dev_state->inv_ppr_cb = cb;  in amd_iommu_set_invalid_ppr_cb()
899 	struct device_state *dev_state;  in amd_iommu_set_invalidate_ctx_cb()  local
912 	dev_state = __get_device_state(devid);  in amd_iommu_set_invalidate_ctx_cb()
913 	if (dev_state == NULL)  in amd_iommu_set_invalidate_ctx_cb()
916 	dev_state->inv_ctx_cb = cb;  in amd_iommu_set_invalidate_ctx_cb()
957 	struct device_state *dev_state;  in amd_iommu_v2_exit()  local
972 		dev_state = get_device_state(i);  in amd_iommu_v2_exit()
974 		if (dev_state == NULL)  in amd_iommu_v2_exit()
979 		put_device_state(dev_state);  in amd_iommu_v2_exit()
980 		amd_iommu_free_device(dev_state->pdev);  in amd_iommu_v2_exit()