23 	struct pnv_php_slot	*php_slot;  member
34 static void pnv_php_disable_irq(struct pnv_php_slot *php_slot,  in pnv_php_disable_irq()  argument
37 	struct pci_dev *pdev = php_slot->pdev;  in pnv_php_disable_irq()
38 	int irq = php_slot->irq;  in pnv_php_disable_irq()
41 	if (php_slot->irq > 0) {  in pnv_php_disable_irq()
48 		free_irq(php_slot->irq, php_slot);  in pnv_php_disable_irq()
49 		php_slot->irq = 0;  in pnv_php_disable_irq()
52 	if (php_slot->wq) {  in pnv_php_disable_irq()
53 		destroy_workqueue(php_slot->wq);  in pnv_php_disable_irq()
54 		php_slot->wq = NULL;  in pnv_php_disable_irq()
69 	struct pnv_php_slot *php_slot = container_of(kref,  in pnv_php_free_slot()  local
72 	WARN_ON(!list_empty(&php_slot->children));  in pnv_php_free_slot()
73 	pnv_php_disable_irq(php_slot, false);  in pnv_php_free_slot()
74 	kfree(php_slot->name);  in pnv_php_free_slot()
75 	kfree(php_slot);  in pnv_php_free_slot()
78 static inline void pnv_php_put_slot(struct pnv_php_slot *php_slot)  in pnv_php_put_slot()  argument
81 	if (!php_slot)  in pnv_php_put_slot()
84 	kref_put(&php_slot->kref, pnv_php_free_slot);  in pnv_php_put_slot()
88 					  struct pnv_php_slot *php_slot)  in pnv_php_match()  argument
92 	if (php_slot->dn == dn) {  in pnv_php_match()
93 		kref_get(&php_slot->kref);  in pnv_php_match()
94 		return php_slot;  in pnv_php_match()
97 	list_for_each_entry(tmp, &php_slot->children, link) {  in pnv_php_match()
108 	struct pnv_php_slot *php_slot, *tmp;  in pnv_php_find_slot()  local
113 		php_slot = pnv_php_match(dn, tmp);  in pnv_php_find_slot()
114 		if (php_slot) {  in pnv_php_find_slot()
116 			return php_slot;  in pnv_php_find_slot()
169 static void pnv_php_rmv_devtree(struct pnv_php_slot *php_slot)  in pnv_php_rmv_devtree()  argument
171 	pnv_php_rmv_pdns(php_slot->dn);  in pnv_php_rmv_devtree()
177 	if (php_slot->fdt)  in pnv_php_rmv_devtree()
178 		of_changeset_destroy(&php_slot->ocs);  in pnv_php_rmv_devtree()
179 	pnv_php_detach_device_nodes(php_slot->dn);  in pnv_php_rmv_devtree()
181 	if (php_slot->fdt) {  in pnv_php_rmv_devtree()
182 		kfree(php_slot->dt);  in pnv_php_rmv_devtree()
183 		kfree(php_slot->fdt);  in pnv_php_rmv_devtree()
184 		php_slot->dt        = NULL;  in pnv_php_rmv_devtree()
185 		php_slot->dn->child = NULL;  in pnv_php_rmv_devtree()
186 		php_slot->fdt       = NULL;  in pnv_php_rmv_devtree()
257 static int pnv_php_add_devtree(struct pnv_php_slot *php_slot)  in pnv_php_add_devtree()  argument
272 	ret = pnv_pci_get_device_tree(php_slot->dn->phandle, fdt1, 0x10000);  in pnv_php_add_devtree()
274 		pci_warn(php_slot->pdev, "Error %d getting FDT blob\n", ret);  in pnv_php_add_devtree()
286 	dt = of_fdt_unflatten_tree(fdt, php_slot->dn, NULL);  in pnv_php_add_devtree()
289 		pci_warn(php_slot->pdev, "Cannot unflatten FDT\n");  in pnv_php_add_devtree()
294 	of_changeset_init(&php_slot->ocs);  in pnv_php_add_devtree()
295 	pnv_php_reverse_nodes(php_slot->dn);  in pnv_php_add_devtree()
296 	ret = pnv_php_populate_changeset(&php_slot->ocs, php_slot->dn);  in pnv_php_add_devtree()
298 		pnv_php_reverse_nodes(php_slot->dn);  in pnv_php_add_devtree()
299 		pci_warn(php_slot->pdev, "Error %d populating changeset\n",  in pnv_php_add_devtree()
304 	php_slot->dn->child = NULL;  in pnv_php_add_devtree()
305 	ret = of_changeset_apply(&php_slot->ocs);  in pnv_php_add_devtree()
307 		pci_warn(php_slot->pdev, "Error %d applying changeset\n", ret);  in pnv_php_add_devtree()
312 	pnv_php_add_pdns(php_slot);  in pnv_php_add_devtree()
313 	php_slot->fdt = fdt;  in pnv_php_add_devtree()
314 	php_slot->dt  = dt;  in pnv_php_add_devtree()
319 	of_changeset_destroy(&php_slot->ocs);  in pnv_php_add_devtree()
322 	php_slot->dn->child = NULL;  in pnv_php_add_devtree()
334 	struct pnv_php_slot *php_slot = slot->private;  in pnv_php_set_slot_power_state()  local
338 	ret = pnv_pci_set_power_state(php_slot->id, state, &msg);  in pnv_php_set_slot_power_state()
340 		if (be64_to_cpu(msg.params[1]) != php_slot->dn->phandle	||  in pnv_php_set_slot_power_state()
343 			pci_warn(php_slot->pdev, "Wrong msg (%lld, %lld, %lld)\n",  in pnv_php_set_slot_power_state()
350 		pci_warn(php_slot->pdev, "Error %d powering %s\n",  in pnv_php_set_slot_power_state()
356 		pnv_php_rmv_devtree(php_slot);  in pnv_php_set_slot_power_state()
358 		ret = pnv_php_add_devtree(php_slot);  in pnv_php_set_slot_power_state()
366 	struct pnv_php_slot *php_slot = slot->private;  in pnv_php_get_power_state()  local
375 	ret = pnv_pci_get_power_state(php_slot->id, &power_state);  in pnv_php_get_power_state()
377 		pci_warn(php_slot->pdev, "Error %d getting power status\n",  in pnv_php_get_power_state()
389 	struct pnv_php_slot *php_slot = slot->private;  in pnv_php_get_adapter_state()  local
397 	ret = pnv_pci_get_presence_state(php_slot->id, &presence);  in pnv_php_get_adapter_state()
403 		pci_warn(php_slot->pdev, "Error %d getting presence\n", ret);  in pnv_php_get_adapter_state()
417 static int pnv_php_enable(struct pnv_php_slot *php_slot, bool rescan)  in pnv_php_enable()  argument
419 	struct hotplug_slot *slot = &php_slot->slot;  in pnv_php_enable()
425 	if (php_slot->state != PNV_PHP_STATE_REGISTERED)  in pnv_php_enable()
440 		if (!php_slot->power_state_check) {  in pnv_php_enable()
441 			php_slot->power_state_check = true;  in pnv_php_enable()
459 	if (!php_slot->power_state_check) {  in pnv_php_enable()
460 		php_slot->power_state_check = true;  in pnv_php_enable()
487 			pci_hp_add_devices(php_slot->bus);  in pnv_php_enable()
492 		php_slot->state = PNV_PHP_STATE_POPULATED;  in pnv_php_enable()
494 			pnv_php_register(php_slot->dn);  in pnv_php_enable()
496 		php_slot->state = PNV_PHP_STATE_POPULATED;  in pnv_php_enable()
504 	struct pnv_php_slot *php_slot = container_of(slot,  in pnv_php_enable_slot()  local
507 	return pnv_php_enable(php_slot, true);  in pnv_php_enable_slot()
512 	struct pnv_php_slot *php_slot = slot->private;  in pnv_php_disable_slot()  local
515 	if (php_slot->state != PNV_PHP_STATE_POPULATED)  in pnv_php_disable_slot()
520 	pci_hp_remove_devices(php_slot->bus);  in pnv_php_disable_slot()
524 	pnv_php_unregister(php_slot->dn);  in pnv_php_disable_slot()
529 	php_slot->state = PNV_PHP_STATE_REGISTERED;  in pnv_php_disable_slot()
541 static void pnv_php_release(struct pnv_php_slot *php_slot)  in pnv_php_release()  argument
547 	list_del(&php_slot->link);  in pnv_php_release()
551 	pnv_php_put_slot(php_slot);  in pnv_php_release()
552 	pnv_php_put_slot(php_slot->parent);  in pnv_php_release()
557 	struct pnv_php_slot *php_slot;  in pnv_php_alloc_slot()  local
574 	php_slot = kzalloc(sizeof(*php_slot), GFP_KERNEL);  in pnv_php_alloc_slot()
575 	if (!php_slot)  in pnv_php_alloc_slot()
578 	php_slot->name = kstrdup(label, GFP_KERNEL);  in pnv_php_alloc_slot()
579 	if (!php_slot->name) {  in pnv_php_alloc_slot()
580 		kfree(php_slot);  in pnv_php_alloc_slot()
585 		php_slot->slot_no = PCI_SLOT(PCI_DN(dn->child)->devfn);  in pnv_php_alloc_slot()
587 		php_slot->slot_no = -1;   /* Placeholder slot */  in pnv_php_alloc_slot()
589 	kref_init(&php_slot->kref);  in pnv_php_alloc_slot()
590 	php_slot->state	                = PNV_PHP_STATE_INITIALIZED;  in pnv_php_alloc_slot()
591 	php_slot->dn	                = dn;  in pnv_php_alloc_slot()
592 	php_slot->pdev	                = bus->self;  in pnv_php_alloc_slot()
593 	php_slot->bus	                = bus;  in pnv_php_alloc_slot()
594 	php_slot->id	                = id;  in pnv_php_alloc_slot()
595 	php_slot->power_state_check     = false;  in pnv_php_alloc_slot()
596 	php_slot->slot.ops              = &php_slot_ops;  in pnv_php_alloc_slot()
597 	php_slot->slot.info             = &php_slot->slot_info;  in pnv_php_alloc_slot()
598 	php_slot->slot.private          = php_slot;  in pnv_php_alloc_slot()
600 	INIT_LIST_HEAD(&php_slot->children);  in pnv_php_alloc_slot()
601 	INIT_LIST_HEAD(&php_slot->link);  in pnv_php_alloc_slot()
603 	return php_slot;  in pnv_php_alloc_slot()
606 static int pnv_php_register_slot(struct pnv_php_slot *php_slot)  in pnv_php_register_slot()  argument
609 	struct device_node *dn = php_slot->dn;  in pnv_php_register_slot()
614 	parent = pnv_php_find_slot(php_slot->dn);  in pnv_php_register_slot()
621 	ret = pci_hp_register(&php_slot->slot, php_slot->bus,  in pnv_php_register_slot()
622 			      php_slot->slot_no, php_slot->name);  in pnv_php_register_slot()
624 		pci_warn(php_slot->pdev, "Error %d registering slot\n", ret);  in pnv_php_register_slot()
645 	php_slot->parent = parent;  in pnv_php_register_slot()
647 		list_add_tail(&php_slot->link, &parent->children);  in pnv_php_register_slot()
649 		list_add_tail(&php_slot->link, &pnv_php_slot_list);  in pnv_php_register_slot()
652 	php_slot->state = PNV_PHP_STATE_REGISTERED;  in pnv_php_register_slot()
656 static int pnv_php_enable_msix(struct pnv_php_slot *php_slot)  in pnv_php_enable_msix()  argument
658 	struct pci_dev *pdev = php_slot->pdev;  in pnv_php_enable_msix()
688 	struct pnv_php_slot *php_slot = event->php_slot;  in pnv_php_event_handler()  local
691 		pnv_php_enable_slot(&php_slot->slot);  in pnv_php_event_handler()
693 		pnv_php_disable_slot(&php_slot->slot);  in pnv_php_event_handler()
700 	struct pnv_php_slot *php_slot = data;  in pnv_php_interrupt()  local
701 	struct pci_dev *pchild, *pdev = php_slot->pdev;  in pnv_php_interrupt()
717 	} else if (!(php_slot->flags & PNV_PHP_FLAG_BROKEN_PDC) &&  in pnv_php_interrupt()
719 		ret = pnv_pci_get_presence_state(php_slot->id, &presence);  in pnv_php_interrupt()
722 				 php_slot->name, ret, sts);  in pnv_php_interrupt()
733 		pchild = list_first_entry_or_null(&php_slot->bus->devices,  in pnv_php_interrupt()
752 			 php_slot->name, sts);  in pnv_php_interrupt()
757 		 php_slot->name, added ? "added" : "removed", irq);  in pnv_php_interrupt()
760 	event->php_slot = php_slot;  in pnv_php_interrupt()
761 	queue_work(php_slot->wq, &event->work);  in pnv_php_interrupt()
766 static void pnv_php_init_irq(struct pnv_php_slot *php_slot, int irq)  in pnv_php_init_irq()  argument
768 	struct pci_dev *pdev = php_slot->pdev;  in pnv_php_init_irq()
774 	php_slot->wq = alloc_workqueue("pciehp-%s", 0, 0, php_slot->name);  in pnv_php_init_irq()
775 	if (!php_slot->wq) {  in pnv_php_init_irq()
777 		pnv_php_disable_irq(php_slot, true);  in pnv_php_init_irq()
782 	ret = of_property_read_u32(php_slot->dn, "ibm,slot-broken-pdc",  in pnv_php_init_irq()
785 		php_slot->flags |= PNV_PHP_FLAG_BROKEN_PDC;  in pnv_php_init_irq()
789 	if (php_slot->flags & PNV_PHP_FLAG_BROKEN_PDC)  in pnv_php_init_irq()
797 			  php_slot->name, php_slot);  in pnv_php_init_irq()
799 		pnv_php_disable_irq(php_slot, true);  in pnv_php_init_irq()
806 	if (php_slot->flags & PNV_PHP_FLAG_BROKEN_PDC) {  in pnv_php_init_irq()
818 	php_slot->irq = irq;  in pnv_php_init_irq()
821 static void pnv_php_enable_irq(struct pnv_php_slot *php_slot)  in pnv_php_enable_irq()  argument
823 	struct pci_dev *pdev = php_slot->pdev;  in pnv_php_enable_irq()
843 	irq = pnv_php_enable_msix(php_slot);  in pnv_php_enable_irq()
845 		pnv_php_init_irq(php_slot, irq);  in pnv_php_enable_irq()
856 		pnv_php_init_irq(php_slot, irq);  in pnv_php_enable_irq()
862 	struct pnv_php_slot *php_slot;  in pnv_php_register_one()  local
875 	php_slot = pnv_php_alloc_slot(dn);  in pnv_php_register_one()
876 	if (!php_slot)  in pnv_php_register_one()
879 	ret = pnv_php_register_slot(php_slot);  in pnv_php_register_one()
883 	ret = pnv_php_enable(php_slot, false);  in pnv_php_register_one()
890 		pnv_php_enable_irq(php_slot);  in pnv_php_register_one()
895 	pnv_php_unregister_one(php_slot->dn);  in pnv_php_register_one()
897 	pnv_php_put_slot(php_slot);  in pnv_php_register_one()
917 	struct pnv_php_slot *php_slot;  in pnv_php_unregister_one()  local
919 	php_slot = pnv_php_find_slot(dn);  in pnv_php_unregister_one()
920 	if (!php_slot)  in pnv_php_unregister_one()
923 	php_slot->state = PNV_PHP_STATE_OFFLINE;  in pnv_php_unregister_one()
924 	pci_hp_deregister(&php_slot->slot);  in pnv_php_unregister_one()
925 	pnv_php_release(php_slot);  in pnv_php_unregister_one()
926 	pnv_php_put_slot(php_slot);  in pnv_php_unregister_one()