1 /* 2 * IRQ subsystem internal functions and variables: 3 */ 4 5 extern int noirqdebug; 6 7 /* Set default functions for irq_chip structures: */ 8 extern void irq_chip_set_defaults(struct irq_chip *chip); 9 10 /* Set default handler: */ 11 extern void compat_irq_chip_set_default_handler(struct irq_desc *desc); 12 13 extern int __irq_set_trigger(struct irq_desc *desc, unsigned int irq, 14 unsigned long flags); 15 16 extern struct lock_class_key irq_desc_lock_class; 17 extern void init_kstat_irqs(struct irq_desc *desc, int cpu, int nr); 18 extern void clear_kstat_irqs(struct irq_desc *desc); 19 extern spinlock_t sparse_irq_lock; 20 extern struct irq_desc *irq_desc_ptrs[NR_IRQS]; 21 22 #ifdef CONFIG_PROC_FS 23 extern void register_irq_proc(unsigned int irq, struct irq_desc *desc); 24 extern void register_handler_proc(unsigned int irq, struct irqaction *action); 25 extern void unregister_handler_proc(unsigned int irq, struct irqaction *action); 26 #else 27 static inline void register_irq_proc(unsigned int irq, struct irq_desc *desc) { } 28 static inline void register_handler_proc(unsigned int irq, 29 struct irqaction *action) { } 30 static inline void unregister_handler_proc(unsigned int irq, 31 struct irqaction *action) { } 32 #endif 33 34 extern int irq_select_affinity_usr(unsigned int irq); 35 36 /* 37 * Debugging printout: 38 */ 39 40 #include <linux/kallsyms.h> 41 42 #define P(f) if (desc->status & f) printk("%14s set\n", #f) 43 44 static inline void print_irq_desc(unsigned int irq, struct irq_desc *desc) 45 { 46 printk("irq %d, desc: %p, depth: %d, count: %d, unhandled: %d\n", 47 irq, desc, desc->depth, desc->irq_count, desc->irqs_unhandled); 48 printk("->handle_irq(): %p, ", desc->handle_irq); 49 print_symbol("%s\n", (unsigned long)desc->handle_irq); 50 printk("->chip(): %p, ", desc->chip); 51 print_symbol("%s\n", (unsigned long)desc->chip); 52 printk("->action(): %p\n", desc->action); 53 if (desc->action) { 54 printk("->action->handler(): %p, ", desc->action->handler); 55 print_symbol("%s\n", (unsigned long)desc->action->handler); 56 } 57 58 P(IRQ_INPROGRESS); 59 P(IRQ_DISABLED); 60 P(IRQ_PENDING); 61 P(IRQ_REPLAY); 62 P(IRQ_AUTODETECT); 63 P(IRQ_WAITING); 64 P(IRQ_LEVEL); 65 P(IRQ_MASKED); 66 #ifdef CONFIG_IRQ_PER_CPU 67 P(IRQ_PER_CPU); 68 #endif 69 P(IRQ_NOPROBE); 70 P(IRQ_NOREQUEST); 71 P(IRQ_NOAUTOEN); 72 } 73 74 #undef P 75 76