72  * A opencapi link can be used be by several PCI functions. We have
73  * one link per device slot.
182 	struct ocxl_link *link = (struct ocxl_link *) data;  in xsl_fault_handler()  local
183 	struct spa *spa = link->spa;  in xsl_fault_handler()
268 static int setup_xsl_irq(struct pci_dev *dev, struct ocxl_link *link)  in setup_xsl_irq()  argument
270 	struct spa *spa = link->spa;  in setup_xsl_irq()
283 				link->domain, link->bus, link->dev);  in setup_xsl_irq()
291 	 * number of interrupts. Could we have an IRQ domain per link?  in setup_xsl_irq()
304 			link);  in setup_xsl_irq()
323 static void release_xsl_irq(struct ocxl_link *link)  in release_xsl_irq()  argument
325 	struct spa *spa = link->spa;  in release_xsl_irq()
328 		free_irq(spa->virq, link);  in release_xsl_irq()
335 static int alloc_spa(struct pci_dev *dev, struct ocxl_link *link)  in alloc_spa()  argument
355 	pr_debug("Allocated SPA for %x:%x:%x at %p\n", link->domain, link->bus,  in alloc_spa()
356 		link->dev, spa->spa_mem);  in alloc_spa()
358 	link->spa = spa;  in alloc_spa()
362 static void free_spa(struct ocxl_link *link)  in free_spa()  argument
364 	struct spa *spa = link->spa;  in free_spa()
366 	pr_debug("Freeing SPA for %x:%x:%x\n", link->domain, link->bus,  in free_spa()
367 		link->dev);  in free_spa()
372 		link->spa = NULL;  in free_spa()
378 	struct ocxl_link *link;  in alloc_link()  local
381 	link = kzalloc(sizeof(struct ocxl_link), GFP_KERNEL);  in alloc_link()
382 	if (!link)  in alloc_link()
385 	kref_init(&link->ref);  in alloc_link()
386 	link->domain = pci_domain_nr(dev->bus);  in alloc_link()
387 	link->bus = dev->bus->number;  in alloc_link()
388 	link->dev = PCI_SLOT(dev->devfn);  in alloc_link()
389 	atomic_set(&link->irq_available, MAX_IRQ_PER_LINK);  in alloc_link()
391 	rc = alloc_spa(dev, link);  in alloc_link()
395 	rc = setup_xsl_irq(dev, link);  in alloc_link()
400 	rc = pnv_ocxl_spa_setup(dev, link->spa->spa_mem, PE_mask,  in alloc_link()
401 				&link->platform_data);  in alloc_link()
405 	*out_link = link;  in alloc_link()
409 	release_xsl_irq(link);  in alloc_link()
411 	free_spa(link);  in alloc_link()
413 	kfree(link);  in alloc_link()
417 static void free_link(struct ocxl_link *link)  in free_link()  argument
419 	release_xsl_irq(link);  in free_link()
420 	free_spa(link);  in free_link()
421 	kfree(link);  in free_link()
427 	struct ocxl_link *link;  in ocxl_link_setup()  local
430 	list_for_each_entry(link, &links_list, list) {  in ocxl_link_setup()
431 		/* The functions of a device all share the same link */  in ocxl_link_setup()
432 		if (link->domain == pci_domain_nr(dev->bus) &&  in ocxl_link_setup()
433 			link->bus == dev->bus->number &&  in ocxl_link_setup()
434 			link->dev == PCI_SLOT(dev->devfn)) {  in ocxl_link_setup()
435 			kref_get(&link->ref);  in ocxl_link_setup()
436 			*link_handle = link;  in ocxl_link_setup()
440 	rc = alloc_link(dev, PE_mask, &link);  in ocxl_link_setup()
444 	list_add(&link->list, &links_list);  in ocxl_link_setup()
445 	*link_handle = link;  in ocxl_link_setup()
454 	struct ocxl_link *link = container_of(ref, struct ocxl_link, ref);  in release_xsl()  local
456 	list_del(&link->list);  in release_xsl()
458 	pnv_ocxl_spa_release(link->platform_data);  in release_xsl()
459 	free_link(link);  in release_xsl()
464 	struct ocxl_link *link = (struct ocxl_link *) link_handle;  in ocxl_link_release()  local
467 	kref_put(&link->ref, release_xsl);  in ocxl_link_release()
500 	struct ocxl_link *link = (struct ocxl_link *) link_handle;  in ocxl_link_add_pe()  local
501 	struct spa *spa = link->spa;  in ocxl_link_add_pe()
577 	struct ocxl_link *link = (struct ocxl_link *) link_handle;  in ocxl_link_update_pe()  local
578 	struct spa *spa = link->spa;  in ocxl_link_update_pe()
604 	rc = pnv_ocxl_spa_remove_pe_from_cache(link->platform_data, pe_handle);  in ocxl_link_update_pe()
613 	struct ocxl_link *link = (struct ocxl_link *) link_handle;  in ocxl_link_remove_pe()  local
614 	struct spa *spa = link->spa;  in ocxl_link_remove_pe()
666 	rc = pnv_ocxl_spa_remove_pe_from_cache(link->platform_data, pe_handle);  in ocxl_link_remove_pe()
687 	struct ocxl_link *link = (struct ocxl_link *) link_handle;  in ocxl_link_irq_alloc()  local
691 	if (atomic_dec_if_positive(&link->irq_available) < 0)  in ocxl_link_irq_alloc()
696 		atomic_inc(&link->irq_available);  in ocxl_link_irq_alloc()
708 	struct ocxl_link *link = (struct ocxl_link *) link_handle;  in ocxl_link_free_irq()  local
711 	atomic_inc(&link->irq_available);  in ocxl_link_free_irq()