blob: ee1aa9f8e8b9341af0c81ec9073f52e48375eb5b [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * IRQ subsystem internal functions and variables:
3 */
4
5extern int noirqdebug;
6
Thomas Gleixner6a6de9e2006-06-29 02:24:51 -07007/* Set default functions for irq_chip structures: */
8extern void irq_chip_set_defaults(struct irq_chip *chip);
9
10/* Set default handler: */
11extern void compat_irq_chip_set_default_handler(struct irq_desc *desc);
12
David Brownell0c5d1eb2008-10-01 14:46:18 -070013extern int __irq_set_trigger(struct irq_desc *desc, unsigned int irq,
14 unsigned long flags);
15
Yinghai Lu48a1b102008-12-11 00:15:01 -080016extern struct lock_class_key irq_desc_lock_class;
17extern void init_kstat_irqs(struct irq_desc *desc, int cpu, int nr);
Yinghai Lu0f3c2a82009-02-08 16:18:03 -080018extern void clear_kstat_irqs(struct irq_desc *desc);
Yinghai Lu48a1b102008-12-11 00:15:01 -080019extern spinlock_t sparse_irq_lock;
Mike Travis0fa0ebb2009-01-10 22:24:06 -080020
21#ifdef CONFIG_SPARSE_IRQ
22/* irq_desc_ptrs allocated at boot time */
23extern struct irq_desc **irq_desc_ptrs;
24#else
25/* irq_desc_ptrs is a fixed size array */
Yinghai Lu48a1b102008-12-11 00:15:01 -080026extern struct irq_desc *irq_desc_ptrs[NR_IRQS];
Mike Travis0fa0ebb2009-01-10 22:24:06 -080027#endif
Yinghai Lu48a1b102008-12-11 00:15:01 -080028
Linus Torvalds1da177e2005-04-16 15:20:36 -070029#ifdef CONFIG_PROC_FS
Yinghai Lu2c6927a2008-08-19 20:50:11 -070030extern void register_irq_proc(unsigned int irq, struct irq_desc *desc);
Linus Torvalds1da177e2005-04-16 15:20:36 -070031extern void register_handler_proc(unsigned int irq, struct irqaction *action);
32extern void unregister_handler_proc(unsigned int irq, struct irqaction *action);
33#else
Yinghai Lu2c6927a2008-08-19 20:50:11 -070034static inline void register_irq_proc(unsigned int irq, struct irq_desc *desc) { }
Linus Torvalds1da177e2005-04-16 15:20:36 -070035static inline void register_handler_proc(unsigned int irq,
36 struct irqaction *action) { }
37static inline void unregister_handler_proc(unsigned int irq,
38 struct irqaction *action) { }
39#endif
40
Thomas Gleixnerf6d87f42008-11-07 13:18:30 +010041extern int irq_select_affinity_usr(unsigned int irq);
42
Ingo Molnar43f77752006-06-29 02:24:58 -070043/*
44 * Debugging printout:
45 */
46
47#include <linux/kallsyms.h>
48
49#define P(f) if (desc->status & f) printk("%14s set\n", #f)
50
51static inline void print_irq_desc(unsigned int irq, struct irq_desc *desc)
52{
53 printk("irq %d, desc: %p, depth: %d, count: %d, unhandled: %d\n",
54 irq, desc, desc->depth, desc->irq_count, desc->irqs_unhandled);
55 printk("->handle_irq(): %p, ", desc->handle_irq);
56 print_symbol("%s\n", (unsigned long)desc->handle_irq);
57 printk("->chip(): %p, ", desc->chip);
58 print_symbol("%s\n", (unsigned long)desc->chip);
59 printk("->action(): %p\n", desc->action);
60 if (desc->action) {
61 printk("->action->handler(): %p, ", desc->action->handler);
62 print_symbol("%s\n", (unsigned long)desc->action->handler);
63 }
64
65 P(IRQ_INPROGRESS);
66 P(IRQ_DISABLED);
67 P(IRQ_PENDING);
68 P(IRQ_REPLAY);
69 P(IRQ_AUTODETECT);
70 P(IRQ_WAITING);
71 P(IRQ_LEVEL);
72 P(IRQ_MASKED);
73#ifdef CONFIG_IRQ_PER_CPU
74 P(IRQ_PER_CPU);
75#endif
76 P(IRQ_NOPROBE);
77 P(IRQ_NOREQUEST);
78 P(IRQ_NOAUTOEN);
79}
80
81#undef P
82