diff options
Diffstat (limited to 'drivers/pci/host/pci-xgene-msi.c')
| -rw-r--r-- | drivers/pci/host/pci-xgene-msi.c | 59 |
1 files changed, 23 insertions, 36 deletions
diff --git a/drivers/pci/host/pci-xgene-msi.c b/drivers/pci/host/pci-xgene-msi.c index 2d31d4d6f..e491681da 100644 --- a/drivers/pci/host/pci-xgene-msi.c +++ b/drivers/pci/host/pci-xgene-msi.c @@ -40,8 +40,8 @@ struct xgene_msi_group { struct xgene_msi { struct device_node *node; - struct msi_controller mchip; - struct irq_domain *domain; + struct irq_domain *inner_domain; + struct irq_domain *msi_domain; u64 msi_addr; void __iomem *msi_regs; unsigned long *bitmap; @@ -223,7 +223,6 @@ static int xgene_irq_domain_alloc(struct irq_domain *domain, unsigned int virq, irq_domain_set_info(domain, virq, msi_irq, &xgene_msi_bottom_irq_chip, domain->host_data, handle_simple_irq, NULL, NULL); - set_irq_flags(virq, IRQF_VALID); return 0; } @@ -252,17 +251,17 @@ static const struct irq_domain_ops msi_domain_ops = { static int xgene_allocate_domains(struct xgene_msi *msi) { - msi->domain = irq_domain_add_linear(NULL, NR_MSI_VEC, - &msi_domain_ops, msi); - if (!msi->domain) + msi->inner_domain = irq_domain_add_linear(NULL, NR_MSI_VEC, + &msi_domain_ops, msi); + if (!msi->inner_domain) return -ENOMEM; - msi->mchip.domain = pci_msi_create_irq_domain(msi->mchip.of_node, - &xgene_msi_domain_info, - msi->domain); + msi->msi_domain = pci_msi_create_irq_domain(msi->node, + &xgene_msi_domain_info, + msi->inner_domain); - if (!msi->mchip.domain) { - irq_domain_remove(msi->domain); + if (!msi->msi_domain) { + irq_domain_remove(msi->inner_domain); return -ENOMEM; } @@ -271,10 +270,10 @@ static int xgene_allocate_domains(struct xgene_msi *msi) static void xgene_free_domains(struct xgene_msi *msi) { - if (msi->mchip.domain) - irq_domain_remove(msi->mchip.domain); - if (msi->domain) - irq_domain_remove(msi->domain); + if (msi->msi_domain) + irq_domain_remove(msi->msi_domain); + if (msi->inner_domain) + irq_domain_remove(msi->inner_domain); } static int xgene_msi_init_allocator(struct xgene_msi *xgene_msi) @@ -296,7 +295,7 @@ static int xgene_msi_init_allocator(struct xgene_msi *xgene_msi) return 0; } -static void xgene_msi_isr(unsigned int irq, struct irq_desc *desc) +static void xgene_msi_isr(struct irq_desc *desc) { struct irq_chip *chip = irq_desc_get_chip(desc); struct xgene_msi_group *msi_groups; @@ -340,7 +339,7 @@ static void xgene_msi_isr(unsigned int irq, struct irq_desc *desc) * CPU0 */ hw_irq = hwirq_to_canonical_hwirq(hw_irq); - virq = irq_find_mapping(xgene_msi->domain, hw_irq); + virq = irq_find_mapping(xgene_msi->inner_domain, hw_irq); WARN_ON(!virq); if (virq != 0) generic_handle_irq(virq); @@ -368,10 +367,8 @@ static int xgene_msi_remove(struct platform_device *pdev) for (i = 0; i < NR_HW_IRQS; i++) { virq = msi->msi_groups[i].gic_irq; - if (virq != 0) { - irq_set_chained_handler(virq, NULL); - irq_set_handler_data(virq, NULL); - } + if (virq != 0) + irq_set_chained_handler_and_data(virq, NULL, NULL); } kfree(msi->msi_groups); @@ -421,8 +418,8 @@ static int xgene_msi_hwirq_alloc(unsigned int cpu) } if (err) { - irq_set_chained_handler(msi_group->gic_irq, NULL); - irq_set_handler_data(msi_group->gic_irq, NULL); + irq_set_chained_handler_and_data(msi_group->gic_irq, + NULL, NULL); return err; } } @@ -441,8 +438,8 @@ static void xgene_msi_hwirq_free(unsigned int cpu) if (!msi_group->gic_irq) continue; - irq_set_chained_handler(msi_group->gic_irq, NULL); - irq_set_handler_data(msi_group->gic_irq, NULL); + irq_set_chained_handler_and_data(msi_group->gic_irq, NULL, + NULL); } } @@ -497,7 +494,7 @@ static int xgene_msi_probe(struct platform_device *pdev) goto error; } xgene_msi->msi_addr = res->start; - + xgene_msi->node = pdev->dev.of_node; xgene_msi->num_cpus = num_possible_cpus(); rc = xgene_msi_init_allocator(xgene_msi); @@ -561,19 +558,10 @@ static int xgene_msi_probe(struct platform_device *pdev) cpu_notifier_register_done(); - xgene_msi->mchip.of_node = pdev->dev.of_node; - rc = of_pci_msi_chip_add(&xgene_msi->mchip); - if (rc) { - dev_err(&pdev->dev, "failed to add MSI controller chip\n"); - goto error_notifier; - } - dev_info(&pdev->dev, "APM X-Gene PCIe MSI driver loaded\n"); return 0; -error_notifier: - unregister_hotcpu_notifier(&xgene_msi_cpu_notifier); error: xgene_msi_remove(pdev); return rc; @@ -582,7 +570,6 @@ error: static struct platform_driver xgene_msi_driver = { .driver = { .name = "xgene-msi", - .owner = THIS_MODULE, .of_match_table = xgene_msi_match_table, }, .probe = xgene_msi_probe, |