Convert the interrupt remap drivers to retrieve the pci device from the msi descriptor and use info::hwirq. This is the first step to prepare x86 for using the generic MSI domain ops. Signed-off-by: Thomas Gleixner Cc: Wei Liu Cc: Stephen Hemminger Cc: Joerg Roedel Cc: linux-pci@vger.kernel.org Cc: linux-hyperv@vger.kernel.org Cc: iommu@lists.linux-foundation.org Cc: Haiyang Zhang Cc: Lu Baolu --- arch/x86/include/asm/hw_irq.h | 8 -------- arch/x86/kernel/apic/msi.c | 7 +++---- drivers/iommu/amd/iommu.c | 5 +++-- drivers/iommu/intel/irq_remapping.c | 4 ++-- drivers/pci/controller/pci-hyperv.c | 2 +- 5 files changed, 9 insertions(+), 17 deletions(-) --- a/arch/x86/include/asm/hw_irq.h +++ b/arch/x86/include/asm/hw_irq.h @@ -85,14 +85,6 @@ struct irq_alloc_info { union { struct ioapic_alloc_info ioapic; struct uv_alloc_info uv; - - int unused; -#ifdef CONFIG_PCI_MSI - struct { - struct pci_dev *msi_dev; - irq_hw_number_t msi_hwirq; - }; -#endif }; }; --- a/arch/x86/kernel/apic/msi.c +++ b/arch/x86/kernel/apic/msi.c @@ -189,7 +189,6 @@ int native_setup_msi_irqs(struct pci_dev init_irq_alloc_info(&info, NULL); info.type = X86_IRQ_ALLOC_TYPE_PCI_MSI; - info.msi_dev = dev; domain = irq_remapping_get_irq_domain(&info); if (domain == NULL) @@ -208,7 +207,7 @@ void native_teardown_msi_irq(unsigned in static irq_hw_number_t pci_msi_get_hwirq(struct msi_domain_info *info, msi_alloc_info_t *arg) { - return arg->msi_hwirq; + return arg->hwirq; } int pci_msi_prepare(struct irq_domain *domain, struct device *dev, int nvec, @@ -218,7 +217,6 @@ int pci_msi_prepare(struct irq_domain *d struct msi_desc *desc = first_pci_msi_entry(pdev); init_irq_alloc_info(arg, NULL); - arg->msi_dev = pdev; if (desc->msi_attrib.is_msix) { arg->type = X86_IRQ_ALLOC_TYPE_PCI_MSIX; } else { @@ -232,7 +230,8 @@ EXPORT_SYMBOL_GPL(pci_msi_prepare); void pci_msi_set_desc(msi_alloc_info_t *arg, struct msi_desc *desc) { - arg->msi_hwirq = pci_msi_domain_calc_hwirq(desc); + arg->desc = desc; + arg->hwirq = pci_msi_domain_calc_hwirq(desc); } EXPORT_SYMBOL_GPL(pci_msi_set_desc); --- a/drivers/iommu/amd/iommu.c +++ b/drivers/iommu/amd/iommu.c @@ -3514,7 +3514,7 @@ static int get_devid(struct irq_alloc_in return get_hpet_devid(info->devid); case X86_IRQ_ALLOC_TYPE_PCI_MSI: case X86_IRQ_ALLOC_TYPE_PCI_MSIX: - return get_device_id(&info->msi_dev->dev); + return get_device_id(msi_desc_to_dev(info->desc)); default: WARN_ON_ONCE(1); return -1; @@ -3688,7 +3688,8 @@ static int irq_remapping_alloc(struct ir info->type == X86_IRQ_ALLOC_TYPE_PCI_MSIX) { bool align = (info->type == X86_IRQ_ALLOC_TYPE_PCI_MSI); - index = alloc_irq_index(devid, nr_irqs, align, info->msi_dev); + index = alloc_irq_index(devid, nr_irqs, align, + msi_desc_to_pci_dev(info->desc)); } else { index = alloc_irq_index(devid, nr_irqs, false, NULL); } --- a/drivers/iommu/intel/irq_remapping.c +++ b/drivers/iommu/intel/irq_remapping.c @@ -1118,7 +1118,7 @@ static struct irq_domain *intel_get_irq_ return map_hpet_to_ir(info->devid); case X86_IRQ_ALLOC_TYPE_PCI_MSI: case X86_IRQ_ALLOC_TYPE_PCI_MSIX: - return map_dev_to_ir(info->msi_dev); + return map_dev_to_ir(msi_desc_to_pci_dev(info->desc)); default: WARN_ON_ONCE(1); return NULL; @@ -1287,7 +1287,7 @@ static void intel_irq_remapping_prepare_ if (info->type == X86_IRQ_ALLOC_TYPE_HPET) set_hpet_sid(irte, info->devid); else - set_msi_sid(irte, info->msi_dev); + set_msi_sid(irte, msi_desc_to_pci_dev(info->desc)); msg->address_hi = MSI_ADDR_BASE_HI; msg->data = sub_handle; --- a/drivers/pci/controller/pci-hyperv.c +++ b/drivers/pci/controller/pci-hyperv.c @@ -1534,7 +1534,7 @@ static struct irq_chip hv_msi_irq_chip = static irq_hw_number_t hv_msi_domain_ops_get_hwirq(struct msi_domain_info *info, msi_alloc_info_t *arg) { - return arg->msi_hwirq; + return arg->hwirq; } static struct msi_domain_ops hv_msi_ops = {