1 /* 2 * IRQ subsystem internal functions and variables: 3 */ 4 #include <linux/irqdesc.h> 5 6 extern int noirqdebug; 7 8 #define irq_data_to_desc(data) container_of(data, struct irq_desc, irq_data) 9 10 /* Set default functions for irq_chip structures: */ 11 extern void irq_chip_set_defaults(struct irq_chip *chip); 12 13 /* Set default handler: */ 14 extern void compat_irq_chip_set_default_handler(struct irq_desc *desc); 15 16 extern int __irq_set_trigger(struct irq_desc *desc, unsigned int irq, 17 unsigned long flags); 18 extern void __disable_irq(struct irq_desc *desc, unsigned int irq, bool susp); 19 extern void __enable_irq(struct irq_desc *desc, unsigned int irq, bool resume); 20 21 extern void init_kstat_irqs(struct irq_desc *desc, int node, int nr); 22 23 /* Resending of interrupts :*/ 24 void check_irq_resend(struct irq_desc *desc, unsigned int irq); 25 26 #ifdef CONFIG_PROC_FS 27 extern void register_irq_proc(unsigned int irq, struct irq_desc *desc); 28 extern void unregister_irq_proc(unsigned int irq, struct irq_desc *desc); 29 extern void register_handler_proc(unsigned int irq, struct irqaction *action); 30 extern void unregister_handler_proc(unsigned int irq, struct irqaction *action); 31 #else 32 static inline void register_irq_proc(unsigned int irq, struct irq_desc *desc) { } 33 static inline void unregister_irq_proc(unsigned int irq, struct irq_desc *desc) { } 34 static inline void register_handler_proc(unsigned int irq, 35 struct irqaction *action) { } 36 static inline void unregister_handler_proc(unsigned int irq, 37 struct irqaction *action) { } 38 #endif 39 40 extern int irq_select_affinity_usr(unsigned int irq); 41 42 extern void irq_set_thread_affinity(struct irq_desc *desc); 43 44 #ifndef CONFIG_GENERIC_HARDIRQS_NO_DEPRECATED 45 static inline void irq_end(unsigned int irq, struct irq_desc *desc) 46 { 47 if (desc->irq_data.chip && desc->irq_data.chip->end) 48 desc->irq_data.chip->end(irq); 49 } 50 #else 51 static inline void irq_end(unsigned int irq, struct irq_desc *desc) { } 52 #endif 53 54 /* Inline functions for support of irq chips on slow busses */ 55 static inline void chip_bus_lock(struct irq_desc *desc) 56 { 57 if (unlikely(desc->irq_data.chip->irq_bus_lock)) 58 desc->irq_data.chip->irq_bus_lock(&desc->irq_data); 59 } 60 61 static inline void chip_bus_sync_unlock(struct irq_desc *desc) 62 { 63 if (unlikely(desc->irq_data.chip->irq_bus_sync_unlock)) 64 desc->irq_data.chip->irq_bus_sync_unlock(&desc->irq_data); 65 } 66 67 /* 68 * Debugging printout: 69 */ 70 71 #include <linux/kallsyms.h> 72 73 #define P(f) if (desc->status & f) printk("%14s set\n", #f) 74 75 static inline void print_irq_desc(unsigned int irq, struct irq_desc *desc) 76 { 77 printk("irq %d, desc: %p, depth: %d, count: %d, unhandled: %d\n", 78 irq, desc, desc->depth, desc->irq_count, desc->irqs_unhandled); 79 printk("->handle_irq(): %p, ", desc->handle_irq); 80 print_symbol("%s\n", (unsigned long)desc->handle_irq); 81 printk("->irq_data.chip(): %p, ", desc->irq_data.chip); 82 print_symbol("%s\n", (unsigned long)desc->irq_data.chip); 83 printk("->action(): %p\n", desc->action); 84 if (desc->action) { 85 printk("->action->handler(): %p, ", desc->action->handler); 86 print_symbol("%s\n", (unsigned long)desc->action->handler); 87 } 88 89 P(IRQ_INPROGRESS); 90 P(IRQ_DISABLED); 91 P(IRQ_PENDING); 92 P(IRQ_REPLAY); 93 P(IRQ_AUTODETECT); 94 P(IRQ_WAITING); 95 P(IRQ_LEVEL); 96 P(IRQ_MASKED); 97 #ifdef CONFIG_IRQ_PER_CPU 98 P(IRQ_PER_CPU); 99 #endif 100 P(IRQ_NOPROBE); 101 P(IRQ_NOREQUEST); 102 P(IRQ_NOAUTOEN); 103 } 104 105 #undef P 106 107