47 	struct ocxl_link *link;  member
78  * A opencapi link can be used be by several PCI functions. We have
79  * one link per device slot.
190 	struct ocxl_link *link = (struct ocxl_link *) data;  in xsl_fault_handler()  local
191 	struct spa *spa = link->spa;  in xsl_fault_handler()
276 static int setup_xsl_irq(struct pci_dev *dev, struct ocxl_link *link)  in setup_xsl_irq()  argument
278 	struct spa *spa = link->spa;  in setup_xsl_irq()
291 				link->domain, link->bus, link->dev);  in setup_xsl_irq()
299 	 * number of interrupts. Could we have an IRQ domain per link?  in setup_xsl_irq()
312 			link);  in setup_xsl_irq()
331 static void release_xsl_irq(struct ocxl_link *link)  in release_xsl_irq()  argument
333 	struct spa *spa = link->spa;  in release_xsl_irq()
336 		free_irq(spa->virq, link);  in release_xsl_irq()
343 static int alloc_spa(struct pci_dev *dev, struct ocxl_link *link)  in alloc_spa()  argument
363 	pr_debug("Allocated SPA for %x:%x:%x at %p\n", link->domain, link->bus,  in alloc_spa()
364 		link->dev, spa->spa_mem);  in alloc_spa()
366 	link->spa = spa;  in alloc_spa()
370 static void free_spa(struct ocxl_link *link)  in free_spa()  argument
372 	struct spa *spa = link->spa;  in free_spa()
374 	pr_debug("Freeing SPA for %x:%x:%x\n", link->domain, link->bus,  in free_spa()
375 		link->dev);  in free_spa()
380 		link->spa = NULL;  in free_spa()
386 	struct ocxl_link *link;  in alloc_link()  local
389 	link = kzalloc(sizeof(struct ocxl_link), GFP_KERNEL);  in alloc_link()
390 	if (!link)  in alloc_link()
393 	kref_init(&link->ref);  in alloc_link()
394 	link->domain = pci_domain_nr(dev->bus);  in alloc_link()
395 	link->bus = dev->bus->number;  in alloc_link()
396 	link->dev = PCI_SLOT(dev->devfn);  in alloc_link()
397 	atomic_set(&link->irq_available, MAX_IRQ_PER_LINK);  in alloc_link()
398 	spin_lock_init(&link->atsd_lock);  in alloc_link()
400 	rc = alloc_spa(dev, link);  in alloc_link()
404 	rc = setup_xsl_irq(dev, link);  in alloc_link()
409 	rc = pnv_ocxl_spa_setup(dev, link->spa->spa_mem, PE_mask,  in alloc_link()
410 				&link->platform_data);  in alloc_link()
414 	/* if link->arva is not defeined, MMIO registers are not used to  in alloc_link()
419 	pnv_ocxl_map_lpar(dev, mfspr(SPRN_LPID), 0, &link->arva);  in alloc_link()
421 	*out_link = link;  in alloc_link()
425 	release_xsl_irq(link);  in alloc_link()
427 	free_spa(link);  in alloc_link()
429 	kfree(link);  in alloc_link()
433 static void free_link(struct ocxl_link *link)  in free_link()  argument
435 	release_xsl_irq(link);  in free_link()
436 	free_spa(link);  in free_link()
437 	kfree(link);  in free_link()
443 	struct ocxl_link *link;  in ocxl_link_setup()  local
446 	list_for_each_entry(link, &links_list, list) {  in ocxl_link_setup()
447 		/* The functions of a device all share the same link */  in ocxl_link_setup()
448 		if (link->domain == pci_domain_nr(dev->bus) &&  in ocxl_link_setup()
449 			link->bus == dev->bus->number &&  in ocxl_link_setup()
450 			link->dev == PCI_SLOT(dev->devfn)) {  in ocxl_link_setup()
451 			kref_get(&link->ref);  in ocxl_link_setup()
452 			*link_handle = link;  in ocxl_link_setup()
456 	rc = alloc_link(dev, PE_mask, &link);  in ocxl_link_setup()
460 	list_add(&link->list, &links_list);  in ocxl_link_setup()
461 	*link_handle = link;  in ocxl_link_setup()
470 	struct ocxl_link *link = container_of(ref, struct ocxl_link, ref);  in release_xsl()  local
472 	if (link->arva) {  in release_xsl()
473 		pnv_ocxl_unmap_lpar(link->arva);  in release_xsl()
474 		link->arva = NULL;  in release_xsl()
477 	list_del(&link->list);  in release_xsl()
479 	pnv_ocxl_spa_release(link->platform_data);  in release_xsl()
480 	free_link(link);  in release_xsl()
485 	struct ocxl_link *link = (struct ocxl_link *) link_handle;  in ocxl_link_release()  local
488 	kref_put(&link->ref, release_xsl);  in ocxl_link_release()
498 	struct ocxl_link *link = pe_data->link;  in invalidate_range()  local
504 	spin_lock(&link->atsd_lock);  in invalidate_range()
506 		pnv_ocxl_tlb_invalidate(link->arva, pid, addr, page_size);  in invalidate_range()
507 	spin_unlock(&link->atsd_lock);  in invalidate_range()
542 	struct ocxl_link *link = (struct ocxl_link *) link_handle;  in ocxl_link_add_pe()  local
543 	struct spa *spa = link->spa;  in ocxl_link_add_pe()
570 	pe_data->link = link;  in ocxl_link_add_pe()
590 		if (link->arva) {  in ocxl_link_add_pe()
632 	struct ocxl_link *link = (struct ocxl_link *) link_handle;  in ocxl_link_update_pe()  local
633 	struct spa *spa = link->spa;  in ocxl_link_update_pe()
659 	rc = pnv_ocxl_spa_remove_pe_from_cache(link->platform_data, pe_handle);  in ocxl_link_update_pe()
668 	struct ocxl_link *link = (struct ocxl_link *) link_handle;  in ocxl_link_remove_pe()  local
669 	struct spa *spa = link->spa;  in ocxl_link_remove_pe()
721 	rc = pnv_ocxl_spa_remove_pe_from_cache(link->platform_data, pe_handle);  in ocxl_link_remove_pe()
729 			if (link->arva) {  in ocxl_link_remove_pe()
734 				spin_lock(&link->atsd_lock);  in ocxl_link_remove_pe()
735 				pnv_ocxl_tlb_invalidate(link->arva,  in ocxl_link_remove_pe()
739 				spin_unlock(&link->atsd_lock);  in ocxl_link_remove_pe()
754 	struct ocxl_link *link = (struct ocxl_link *) link_handle;  in ocxl_link_irq_alloc()  local
757 	if (atomic_dec_if_positive(&link->irq_available) < 0)  in ocxl_link_irq_alloc()
762 		atomic_inc(&link->irq_available);  in ocxl_link_irq_alloc()
773 	struct ocxl_link *link = (struct ocxl_link *) link_handle;  in ocxl_link_free_irq()  local
776 	atomic_inc(&link->irq_available);  in ocxl_link_free_irq()