diff options
Diffstat (limited to 'include/linux/msi.h')
| -rw-r--r-- | include/linux/msi.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/include/linux/msi.h b/include/linux/msi.h index e0d08517bd3d..b5ca2456769c 100644 --- a/include/linux/msi.h +++ b/include/linux/msi.h @@ -114,4 +114,49 @@ struct msi_controller { void (*teardown_irq)(struct msi_controller *chip, unsigned int irq); }; +#ifdef CONFIG_GENERIC_MSI_IRQ_DOMAIN +struct irq_domain; +struct irq_chip; +struct device_node; +struct msi_domain_info; + +/** + * struct msi_domain_ops - MSI interrupt domain callbacks + * @get_hwirq: Retrieve the resulting hw irq number + * @msi_init: Domain specific init function for MSI interrupts + * @msi_free: Domain specific function to free a MSI interrupts + */ +struct msi_domain_ops { + irq_hw_number_t (*get_hwirq)(struct msi_domain_info *info, void *arg); + int (*msi_init)(struct irq_domain *domain, + struct msi_domain_info *info, + unsigned int virq, irq_hw_number_t hwirq, + void *arg); + void (*msi_free)(struct irq_domain *domain, + struct msi_domain_info *info, + unsigned int virq); +}; + +/** + * struct msi_domain_info - MSI interrupt domain data + * @ops: The callback data structure + * @chip: The associated interrupt chip + * @data: Domain specific data + */ +struct msi_domain_info { + struct msi_domain_ops *ops; + struct irq_chip *chip; + void *data; +}; + +int msi_domain_set_affinity(struct irq_data *data, const struct cpumask *mask, + bool force); + +struct irq_domain *msi_create_irq_domain(struct device_node *of_node, + struct msi_domain_info *info, + struct irq_domain *parent); +struct msi_domain_info *msi_get_domain_info(struct irq_domain *domain); + +#endif /* CONFIG_GENERIC_MSI_IRQ_DOMAIN */ + #endif /* LINUX_MSI_H */ |