diff options
Diffstat (limited to 'include/linux/irq.h')
| -rw-r--r-- | include/linux/irq.h | 52 |
1 files changed, 29 insertions, 23 deletions
diff --git a/include/linux/irq.h b/include/linux/irq.h index 7dc10036eff..0d998d8b01d 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -303,6 +303,10 @@ static inline irq_hw_number_t irqd_to_hwirq(struct irq_data *d) * @irq_pm_shutdown: function called from core code on shutdown once per chip * @irq_calc_mask: Optional function to set irq_data.mask for special cases * @irq_print_chip: optional to print special chip info in show_interrupts + * @irq_request_resources: optional to request resources before calling + * any other callback related to this irq + * @irq_release_resources: optional to release resources acquired with + * irq_request_resources * @flags: chip specific flags */ struct irq_chip { @@ -336,6 +340,8 @@ struct irq_chip { void (*irq_calc_mask)(struct irq_data *data); void (*irq_print_chip)(struct irq_data *data, struct seq_file *p); + int (*irq_request_resources)(struct irq_data *data); + void (*irq_release_resources)(struct irq_data *data); unsigned long flags; }; @@ -349,6 +355,8 @@ struct irq_chip { * IRQCHIP_ONOFFLINE_ENABLED: Only call irq_on/off_line callbacks * when irq enabled * IRQCHIP_SKIP_SET_WAKE: Skip chip.irq_set_wake(), for this irq chip + * IRQCHIP_ONESHOT_SAFE: One shot does not require mask/unmask + * IRQCHIP_EOI_THREADED: Chip requires eoi() on unmask in threaded mode */ enum { IRQCHIP_SET_TYPE_MASKED = (1 << 0), @@ -357,6 +365,7 @@ enum { IRQCHIP_ONOFFLINE_ENABLED = (1 << 3), IRQCHIP_SKIP_SET_WAKE = (1 << 4), IRQCHIP_ONESHOT_SAFE = (1 << 5), + IRQCHIP_EOI_THREADED = (1 << 6), }; /* This include will go away once we isolated irq_desc usage to core code */ @@ -385,7 +394,8 @@ extern void remove_percpu_irq(unsigned int irq, struct irqaction *act); extern void irq_cpu_online(void); extern void irq_cpu_offline(void); -extern int __irq_set_affinity_locked(struct irq_data *data, const struct cpumask *cpumask); +extern int irq_set_affinity_locked(struct irq_data *data, + const struct cpumask *cpumask, bool force); #if defined(CONFIG_SMP) && defined(CONFIG_GENERIC_PENDING_IRQ) void irq_move_irq(struct irq_data *data); @@ -515,24 +525,6 @@ static inline void irq_set_percpu_devid_flags(unsigned int irq) IRQ_NOPROBE | IRQ_PER_CPU_DEVID); } -/* Handle dynamic irq creation and destruction */ -extern unsigned int create_irq_nr(unsigned int irq_want, int node); -extern unsigned int __create_irqs(unsigned int from, unsigned int count, - int node); -extern int create_irq(void); -extern void destroy_irq(unsigned int irq); -extern void destroy_irqs(unsigned int irq, unsigned int count); - -/* - * Dynamic irq helper functions. Obsolete. Use irq_alloc_desc* and - * irq_free_desc instead. - */ -extern void dynamic_irq_cleanup(unsigned int irq); -static inline void dynamic_irq_init(unsigned int irq) -{ - dynamic_irq_cleanup(irq); -} - /* Set/get chip/data for an IRQ: */ extern int irq_set_chip(unsigned int irq, struct irq_chip *chip); extern int irq_set_handler_data(unsigned int irq, void *data); @@ -593,6 +585,8 @@ static inline u32 irq_get_trigger_type(unsigned int irq) return d ? irqd_get_trigger_type(d) : 0; } +unsigned int arch_dynirq_lower_bound(unsigned int from); + int __irq_alloc_descs(int irq, unsigned int from, unsigned int cnt, int node, struct module *owner); @@ -613,17 +607,29 @@ int __irq_alloc_descs(int irq, unsigned int from, unsigned int cnt, int node, irq_alloc_descs(-1, from, cnt, node) void irq_free_descs(unsigned int irq, unsigned int cnt); -int irq_reserve_irqs(unsigned int from, unsigned int cnt); - static inline void irq_free_desc(unsigned int irq) { irq_free_descs(irq, 1); } -static inline int irq_reserve_irq(unsigned int irq) +#ifdef CONFIG_GENERIC_IRQ_LEGACY_ALLOC_HWIRQ +unsigned int irq_alloc_hwirqs(int cnt, int node); +static inline unsigned int irq_alloc_hwirq(int node) +{ + return irq_alloc_hwirqs(1, node); +} +void irq_free_hwirqs(unsigned int from, int cnt); +static inline void irq_free_hwirq(unsigned int irq) { - return irq_reserve_irqs(irq, 1); + return irq_free_hwirqs(irq, 1); } +int arch_setup_hwirq(unsigned int irq, int node); +void arch_teardown_hwirq(unsigned int irq); +#endif + +#ifdef CONFIG_GENERIC_IRQ_LEGACY +void irq_init_desc(unsigned int irq); +#endif #ifndef irq_reg_writel # define irq_reg_writel(val, addr) writel(val, addr) |