68 	struct device_state *dev_state;  member
84 static void free_pasid_states(struct device_state *dev_state);
98 	struct device_state *dev_state;  in __get_device_state()  local
100 	list_for_each_entry(dev_state, &state_list, list) {  in __get_device_state()
101 		if (dev_state->devid == devid)  in __get_device_state()
102 			return dev_state;  in __get_device_state()
110 	struct device_state *dev_state;  in get_device_state()  local
114 	dev_state = __get_device_state(devid);  in get_device_state()
115 	if (dev_state != NULL)  in get_device_state()
116 		atomic_inc(&dev_state->count);  in get_device_state()
119 	return dev_state;  in get_device_state()
122 static void free_device_state(struct device_state *dev_state)  in free_device_state()  argument
130 	group = iommu_group_get(&dev_state->pdev->dev);  in free_device_state()
134 	iommu_detach_group(dev_state->domain, group);  in free_device_state()
139 	iommu_domain_free(dev_state->domain);  in free_device_state()
142 	kfree(dev_state);  in free_device_state()
145 static void put_device_state(struct device_state *dev_state)  in put_device_state()  argument
147 	if (atomic_dec_and_test(&dev_state->count))  in put_device_state()
148 		wake_up(&dev_state->wq);  in put_device_state()
152 static struct pasid_state **__get_pasid_state_ptr(struct device_state *dev_state,  in __get_pasid_state_ptr()  argument
158 	level = dev_state->pasid_levels;  in __get_pasid_state_ptr()
159 	root  = dev_state->states;  in __get_pasid_state_ptr()
185 static int set_pasid_state(struct device_state *dev_state,  in set_pasid_state()  argument
193 	spin_lock_irqsave(&dev_state->lock, flags);  in set_pasid_state()
194 	ptr = __get_pasid_state_ptr(dev_state, pasid, true);  in set_pasid_state()
209 	spin_unlock_irqrestore(&dev_state->lock, flags);  in set_pasid_state()
214 static void clear_pasid_state(struct device_state *dev_state, u32 pasid)  in clear_pasid_state()  argument
219 	spin_lock_irqsave(&dev_state->lock, flags);  in clear_pasid_state()
220 	ptr = __get_pasid_state_ptr(dev_state, pasid, true);  in clear_pasid_state()
228 	spin_unlock_irqrestore(&dev_state->lock, flags);  in clear_pasid_state()
231 static struct pasid_state *get_pasid_state(struct device_state *dev_state,  in get_pasid_state()  argument
237 	spin_lock_irqsave(&dev_state->lock, flags);  in get_pasid_state()
238 	ptr = __get_pasid_state_ptr(dev_state, pasid, false);  in get_pasid_state()
248 	spin_unlock_irqrestore(&dev_state->lock, flags);  in get_pasid_state()
319 static void free_pasid_states(struct device_state *dev_state)  in free_pasid_states()  argument
324 	for (i = 0; i < dev_state->max_pasids; ++i) {  in free_pasid_states()
325 		pasid_state = get_pasid_state(dev_state, i);  in free_pasid_states()
341 		put_device_state(dev_state);  in free_pasid_states()
344 	if (dev_state->pasid_levels == 2)  in free_pasid_states()
345 		free_pasid_states_level2(dev_state->states);  in free_pasid_states()
346 	else if (dev_state->pasid_levels == 1)  in free_pasid_states()
347 		free_pasid_states_level1(dev_state->states);  in free_pasid_states()
349 		BUG_ON(dev_state->pasid_levels != 0);  in free_pasid_states()
351 	free_page((unsigned long)dev_state->states);  in free_pasid_states()
364 	struct device_state *dev_state;  in mn_invalidate_range()  local
367 	dev_state   = pasid_state->device_state;  in mn_invalidate_range()
370 		amd_iommu_flush_page(dev_state->domain, pasid_state->pasid,  in mn_invalidate_range()
373 		amd_iommu_flush_tlb(dev_state->domain, pasid_state->pasid);  in mn_invalidate_range()
379 	struct device_state *dev_state;  in mn_release()  local
385 	dev_state      = pasid_state->device_state;  in mn_release()
388 	if (run_inv_ctx_cb && dev_state->inv_ctx_cb)  in mn_release()
389 		dev_state->inv_ctx_cb(dev_state->pdev, pasid_state->pasid);  in mn_release()
409 static void finish_pri_tag(struct device_state *dev_state,  in finish_pri_tag()  argument
418 		amd_iommu_complete_ppr(dev_state->pdev, pasid_state->pasid,  in finish_pri_tag()
430 	if (!fault->dev_state->inv_ppr_cb) {  in handle_fault_error()
435 	status = fault->dev_state->inv_ppr_cb(fault->dev_state->pdev,  in handle_fault_error()
506 	finish_pri_tag(fault->dev_state, fault->state, fault->tag);  in do_fault()
517 	struct device_state *dev_state;  in ppr_notifier()  local
544 	dev_state = get_device_state(iommu_fault->device_id);  in ppr_notifier()
545 	if (dev_state == NULL)  in ppr_notifier()
548 	pasid_state = get_pasid_state(dev_state, iommu_fault->pasid);  in ppr_notifier()
551 		amd_iommu_complete_ppr(dev_state->pdev, iommu_fault->pasid,  in ppr_notifier()
565 		finish_pri_tag(dev_state, pasid_state, tag);  in ppr_notifier()
569 	fault->dev_state = dev_state;  in ppr_notifier()
587 	put_device_state(dev_state);  in ppr_notifier()
601 	struct device_state *dev_state;  in amd_iommu_bind_pasid()  local
612 	dev_state = get_device_state(devid);  in amd_iommu_bind_pasid()
614 	if (dev_state == NULL)  in amd_iommu_bind_pasid()
618 	if (pasid >= dev_state->max_pasids)  in amd_iommu_bind_pasid()
633 	pasid_state->device_state = dev_state;  in amd_iommu_bind_pasid()
644 	ret = set_pasid_state(dev_state, pasid_state, pasid);  in amd_iommu_bind_pasid()
648 	ret = amd_iommu_domain_set_gcr3(dev_state->domain, pasid,  in amd_iommu_bind_pasid()
666 	clear_pasid_state(dev_state, pasid);  in amd_iommu_bind_pasid()
676 	put_device_state(dev_state);  in amd_iommu_bind_pasid()
685 	struct device_state *dev_state;  in amd_iommu_unbind_pasid()  local
694 	dev_state = get_device_state(devid);  in amd_iommu_unbind_pasid()
695 	if (dev_state == NULL)  in amd_iommu_unbind_pasid()
698 	if (pasid >= dev_state->max_pasids)  in amd_iommu_unbind_pasid()
701 	pasid_state = get_pasid_state(dev_state, pasid);  in amd_iommu_unbind_pasid()
711 	clear_pasid_state(dev_state, pasid_state->pasid);  in amd_iommu_unbind_pasid()
723 	put_device_state(dev_state);  in amd_iommu_unbind_pasid()
726 	put_device_state(dev_state);  in amd_iommu_unbind_pasid()
732 	struct device_state *dev_state;  in amd_iommu_init_device()  local
755 	dev_state = kzalloc(sizeof(*dev_state), GFP_KERNEL);  in amd_iommu_init_device()
756 	if (dev_state == NULL)  in amd_iommu_init_device()
759 	spin_lock_init(&dev_state->lock);  in amd_iommu_init_device()
760 	init_waitqueue_head(&dev_state->wq);  in amd_iommu_init_device()
761 	dev_state->pdev  = pdev;  in amd_iommu_init_device()
762 	dev_state->devid = devid;  in amd_iommu_init_device()
765 	for (dev_state->pasid_levels = 0; (tmp - 1) & ~0x1ff; tmp >>= 9)  in amd_iommu_init_device()
766 		dev_state->pasid_levels += 1;  in amd_iommu_init_device()
768 	atomic_set(&dev_state->count, 1);  in amd_iommu_init_device()
769 	dev_state->max_pasids = pasids;  in amd_iommu_init_device()
772 	dev_state->states = (void *)get_zeroed_page(GFP_KERNEL);  in amd_iommu_init_device()
773 	if (dev_state->states == NULL)  in amd_iommu_init_device()
776 	dev_state->domain = iommu_domain_alloc(&pci_bus_type);  in amd_iommu_init_device()
777 	if (dev_state->domain == NULL)  in amd_iommu_init_device()
780 	amd_iommu_domain_direct_map(dev_state->domain);  in amd_iommu_init_device()
782 	ret = amd_iommu_domain_enable_v2(dev_state->domain, pasids);  in amd_iommu_init_device()
792 	ret = iommu_attach_group(dev_state->domain, group);  in amd_iommu_init_device()
806 	list_add_tail(&dev_state->list, &state_list);  in amd_iommu_init_device()
816 	iommu_domain_free(dev_state->domain);  in amd_iommu_init_device()
819 	free_page((unsigned long)dev_state->states);  in amd_iommu_init_device()
822 	kfree(dev_state);  in amd_iommu_init_device()
830 	struct device_state *dev_state;  in amd_iommu_free_device()  local
841 	dev_state = __get_device_state(devid);  in amd_iommu_free_device()
842 	if (dev_state == NULL) {  in amd_iommu_free_device()
847 	list_del(&dev_state->list);  in amd_iommu_free_device()
852 	free_pasid_states(dev_state);  in amd_iommu_free_device()
854 	put_device_state(dev_state);  in amd_iommu_free_device()
859 	wait_event(dev_state->wq, !atomic_read(&dev_state->count));  in amd_iommu_free_device()
860 	free_device_state(dev_state);  in amd_iommu_free_device()
867 	struct device_state *dev_state;  in amd_iommu_set_invalid_ppr_cb()  local
880 	dev_state = __get_device_state(devid);  in amd_iommu_set_invalid_ppr_cb()
881 	if (dev_state == NULL)  in amd_iommu_set_invalid_ppr_cb()
884 	dev_state->inv_ppr_cb = cb;  in amd_iommu_set_invalid_ppr_cb()
898 	struct device_state *dev_state;  in amd_iommu_set_invalidate_ctx_cb()  local
911 	dev_state = __get_device_state(devid);  in amd_iommu_set_invalidate_ctx_cb()
912 	if (dev_state == NULL)  in amd_iommu_set_invalidate_ctx_cb()
915 	dev_state->inv_ctx_cb = cb;  in amd_iommu_set_invalidate_ctx_cb()
958 	struct device_state *dev_state;  in amd_iommu_v2_exit()  local
973 		dev_state = get_device_state(i);  in amd_iommu_v2_exit()
975 		if (dev_state == NULL)  in amd_iommu_v2_exit()
980 		put_device_state(dev_state);  in amd_iommu_v2_exit()
981 		amd_iommu_free_device(dev_state->pdev);  in amd_iommu_v2_exit()