diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/irq.h | 30 | ||||
| -rw-r--r-- | include/linux/irqdomain.h | 12 |
2 files changed, 42 insertions, 0 deletions
diff --git a/include/linux/irq.h b/include/linux/irq.h index ab8169faaa65..af7052c6a45c 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -678,6 +678,8 @@ struct irq_chip_type { * @wake_active: Interrupt is marked as an wakeup from suspend source * @num_ct: Number of available irq_chip_type instances (usually 1) * @private: Private data for non generic chip callbacks + * @installed: bitfield to denote installed interrupts + * @domain: irq domain pointer * @list: List head for keeping track of instances * @chip_types: Array of interrupt irq_chip_types * @@ -699,6 +701,8 @@ struct irq_chip_generic { u32 wake_active; unsigned int num_ct; void *private; + unsigned long installed; + struct irq_domain *domain; struct list_head list; struct irq_chip_type chip_types[0]; }; @@ -719,6 +723,24 @@ enum irq_gc_flags { IRQ_GC_NO_MASK = 1 << 3, }; +/* + * struct irq_domain_chip_generic - Generic irq chip data structure for irq domains + * @irqs_per_chip: Number of interrupts per chip + * @num_chips: Number of chips + * @irq_flags_to_set: IRQ* flags to set on irq setup + * @irq_flags_to_clear: IRQ* flags to clear on irq setup + * @gc_flags: Generic chip specific setup flags + * @gc: Array of pointers to generic interrupt chips + */ +struct irq_domain_chip_generic { + unsigned int irqs_per_chip; + unsigned int num_chips; + unsigned int irq_flags_to_clear; + unsigned int irq_flags_to_set; + enum irq_gc_flags gc_flags; + struct irq_chip_generic *gc[0]; +}; + /* Generic chip callback functions */ void irq_gc_noop(struct irq_data *d); void irq_gc_mask_disable_reg(struct irq_data *d); @@ -742,6 +764,14 @@ int irq_setup_alt_chip(struct irq_data *d, unsigned int type); void irq_remove_generic_chip(struct irq_chip_generic *gc, u32 msk, unsigned int clr, unsigned int set); +struct irq_chip_generic *irq_get_domain_generic_chip(struct irq_domain *d, unsigned int hw_irq); +int irq_alloc_domain_generic_chips(struct irq_domain *d, int irqs_per_chip, + int num_ct, const char *name, + irq_flow_handler_t handler, + unsigned int clr, unsigned int set, + enum irq_gc_flags flags); + + static inline struct irq_chip_type *irq_data_get_chip_type(struct irq_data *d) { return container_of(d->chip, struct irq_chip_type, chip); diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h index 0d5b17bf5e51..ba2c708adcff 100644 --- a/include/linux/irqdomain.h +++ b/include/linux/irqdomain.h @@ -66,6 +66,10 @@ struct irq_domain_ops { unsigned long *out_hwirq, unsigned int *out_type); }; +extern struct irq_domain_ops irq_generic_chip_ops; + +struct irq_domain_chip_generic; + /** * struct irq_domain - Hardware interrupt number translation object * @link: Element in global irq_domain list. @@ -109,8 +113,16 @@ struct irq_domain { /* Optional device node pointer */ struct device_node *of_node; + /* Optional pointer to generic interrupt chips */ + struct irq_domain_chip_generic *gc; }; +#define IRQ_DOMAIN_MAP_LEGACY 0 /* driver allocated fixed range of irqs. + * ie. legacy 8259, gets irqs 1..15 */ +#define IRQ_DOMAIN_MAP_NOMAP 1 /* no fast reverse mapping */ +#define IRQ_DOMAIN_MAP_LINEAR 2 /* linear map of interrupts */ +#define IRQ_DOMAIN_MAP_TREE 3 /* radix tree */ + #ifdef CONFIG_IRQ_DOMAIN struct irq_domain *irq_domain_add_simple(struct device_node *of_node, unsigned int size, |