/* * IRQ subsystem internal functions and variables: */ extern int noirqdebug; /* Set default functions for irq_chip structures: */ extern void irq_chip_set_defaults(struct irq_chip *chip); /* Set default handler: */ extern void compat_irq_chip_set_default_handler(struct irq_desc *desc); extern int __irq_set_trigger(struct irq_desc *desc, unsigned int irq, unsigned long flags); extern struct lock_class_key irq_desc_lock_class; extern void init_kstat_irqs(struct irq_desc *desc, int cpu, int nr); extern void clear_kstat_irqs(struct irq_desc *desc); extern spinlock_t sparse_irq_lock; #ifdef CONFIG_SPARSE_IRQ /* irq_desc_ptrs allocated at boot time */ extern struct irq_desc **irq_desc_ptrs; #else /* irq_desc_ptrs is a fixed size array */ extern struct irq_desc *irq_desc_ptrs[NR_IRQS]; #endif #ifdef CONFIG_PROC_FS extern void register_irq_proc(unsigned int irq, struct irq_desc *desc); extern void register_handler_proc(unsigned int irq, struct irqaction *action); extern void unregister_handler_proc(unsigned int irq, struct irqaction *action); #else static inline void register_irq_proc(unsigned int irq, struct irq_desc *desc) { } static inline void register_handler_proc(unsigned int irq, struct irqaction *action) { } static inline void unregister_handler_proc(unsigned int irq, struct irqaction *action) { } #endif extern int irq_select_affinity_usr(unsigned int irq); /* * Debugging printout: */ #include <linux/kallsyms.h> #define P(f) if (desc->status & f) printk("%14s set\n", #f) static inline void print_irq_desc(unsigned int irq, struct irq_desc *desc) { printk("irq %d, desc: %p, depth: %d, count: %d, unhandled: %d\n", irq, desc, desc->depth, desc->irq_count, desc->irqs_unhandled); printk("->handle_irq(): %p, ", desc->handle_irq); print_symbol("%s\n", (unsigned long)desc->handle_irq); printk("->chip(): %p, ", desc->chip); print_symbol("%s\n", (unsigned long)desc->chip); printk("->action(): %p\n", desc->action); if (desc->action) { printk("->action->handler(): %p, ", desc->action->handler); print_symbol("%s\n", (unsigned long)desc->action->handler); } P(IRQ_INPROGRESS); P(IRQ_DISABLED); P(IRQ_PENDING); P(IRQ_REPLAY); P(IRQ_AUTODETECT); P(IRQ_WAITING); P(IRQ_LEVEL); P(IRQ_MASKED); #ifdef CONFIG_IRQ_PER_CPU P(IRQ_PER_CPU); #endif P(IRQ_NOPROBE); P(IRQ_NOREQUEST); P(IRQ_NOAUTOEN); } #undef P