diff options
| -rw-r--r-- | include/linux/msi.h | 26 | ||||
| -rw-r--r-- | kernel/irq/Kconfig | 3 |
2 files changed, 29 insertions, 0 deletions
diff --git a/include/linux/msi.h b/include/linux/msi.h index 7c28762851a3..3eb42ede0114 100644 --- a/include/linux/msi.h +++ b/include/linux/msi.h @@ -86,6 +86,9 @@ struct msi_desc { struct device *dev; struct msi_msg msg; struct irq_affinity_desc *affinity; +#ifdef CONFIG_IRQ_MSI_IOMMU + const void *iommu_cookie; +#endif union { /* PCI MSI/X specific data */ @@ -129,6 +132,29 @@ struct msi_desc { #define for_each_msi_entry_safe(desc, tmp, dev) \ list_for_each_entry_safe((desc), (tmp), dev_to_msi_list((dev)), list) +#ifdef CONFIG_IRQ_MSI_IOMMU +static inline const void *msi_desc_get_iommu_cookie(struct msi_desc *desc) +{ + return desc->iommu_cookie; +} + +static inline void msi_desc_set_iommu_cookie(struct msi_desc *desc, + const void *iommu_cookie) +{ + desc->iommu_cookie = iommu_cookie; +} +#else +static inline const void *msi_desc_get_iommu_cookie(struct msi_desc *desc) +{ + return NULL; +} + +static inline void msi_desc_set_iommu_cookie(struct msi_desc *desc, + const void *iommu_cookie) +{ +} +#endif + #ifdef CONFIG_PCI_MSI #define first_pci_msi_entry(pdev) first_msi_entry(&(pdev)->dev) #define for_each_pci_msi_entry(desc, pdev) \ diff --git a/kernel/irq/Kconfig b/kernel/irq/Kconfig index 5f3e2baefca9..8fee06625c37 100644 --- a/kernel/irq/Kconfig +++ b/kernel/irq/Kconfig @@ -91,6 +91,9 @@ config GENERIC_MSI_IRQ_DOMAIN select IRQ_DOMAIN_HIERARCHY select GENERIC_MSI_IRQ +config IRQ_MSI_IOMMU + bool + config HANDLE_DOMAIN_IRQ bool |