1
2
3
4
5extern int noirqdebug;
6
7
8extern void irq_chip_set_defaults(struct irq_chip *chip);
9
10
11extern void compat_irq_chip_set_default_handler(struct irq_desc *desc);
12
13extern int __irq_set_trigger(struct irq_desc *desc, unsigned int irq,
14 unsigned long flags);
15extern void __disable_irq(struct irq_desc *desc, unsigned int irq, bool susp);
16extern void __enable_irq(struct irq_desc *desc, unsigned int irq, bool resume);
17
18extern struct lock_class_key irq_desc_lock_class;
19extern void init_kstat_irqs(struct irq_desc *desc, int node, int nr);
20extern void clear_kstat_irqs(struct irq_desc *desc);
21extern spinlock_t sparse_irq_lock;
22
23#ifdef CONFIG_SPARSE_IRQ
24
25extern struct irq_desc **irq_desc_ptrs;
26#else
27
28extern struct irq_desc *irq_desc_ptrs[NR_IRQS];
29#endif
30
31#ifdef CONFIG_PROC_FS
32extern void register_irq_proc(unsigned int irq, struct irq_desc *desc);
33extern void register_handler_proc(unsigned int irq, struct irqaction *action);
34extern void unregister_handler_proc(unsigned int irq, struct irqaction *action);
35#else
36static inline void register_irq_proc(unsigned int irq, struct irq_desc *desc) { }
37static inline void register_handler_proc(unsigned int irq,
38 struct irqaction *action) { }
39static inline void unregister_handler_proc(unsigned int irq,
40 struct irqaction *action) { }
41#endif
42
43extern int irq_select_affinity_usr(unsigned int irq);
44
45extern void irq_set_thread_affinity(struct irq_desc *desc);
46
47
48static inline void chip_bus_lock(unsigned int irq, struct irq_desc *desc)
49{
50 if (unlikely(desc->chip->bus_lock))
51 desc->chip->bus_lock(irq);
52}
53
54static inline void chip_bus_sync_unlock(unsigned int irq, struct irq_desc *desc)
55{
56 if (unlikely(desc->chip->bus_sync_unlock))
57 desc->chip->bus_sync_unlock(irq);
58}
59
60
61
62
63
64#include <linux/kallsyms.h>
65
66#define P(f) if (desc->status & f) printk("%14s set\n", #f)
67
68static inline void print_irq_desc(unsigned int irq, struct irq_desc *desc)
69{
70 printk("irq %d, desc: %p, depth: %d, count: %d, unhandled: %d\n",
71 irq, desc, desc->depth, desc->irq_count, desc->irqs_unhandled);
72 printk("->handle_irq(): %p, ", desc->handle_irq);
73 print_symbol("%s\n", (unsigned long)desc->handle_irq);
74 printk("->chip(): %p, ", desc->chip);
75 print_symbol("%s\n", (unsigned long)desc->chip);
76 printk("->action(): %p\n", desc->action);
77 if (desc->action) {
78 printk("->action->handler(): %p, ", desc->action->handler);
79 print_symbol("%s\n", (unsigned long)desc->action->handler);
80 }
81
82 P(IRQ_INPROGRESS);
83 P(IRQ_DISABLED);
84 P(IRQ_PENDING);
85 P(IRQ_REPLAY);
86 P(IRQ_AUTODETECT);
87 P(IRQ_WAITING);
88 P(IRQ_LEVEL);
89 P(IRQ_MASKED);
90#ifdef CONFIG_IRQ_PER_CPU
91 P(IRQ_PER_CPU);
92#endif
93 P(IRQ_NOPROBE);
94 P(IRQ_NOREQUEST);
95 P(IRQ_NOAUTOEN);
96}
97
98#undef P
99
100