irq: clear kstat_irqs
[linux-2.6.git] / kernel / irq / internals.h
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