Merge branch 'core/percpu' into percpu-cpumask-x86-for-linus-2
[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
21 #ifdef CONFIG_SPARSE_IRQ
22 /* irq_desc_ptrs allocated at boot time */
23 extern struct irq_desc **irq_desc_ptrs;
24 #else
25 /* irq_desc_ptrs is a fixed size array */
26 extern struct irq_desc *irq_desc_ptrs[NR_IRQS];
27 #endif
28
29 #ifdef CONFIG_PROC_FS
30 extern void register_irq_proc(unsigned int irq, struct irq_desc *desc);
31 extern void register_handler_proc(unsigned int irq, struct irqaction *action);
32 extern void unregister_handler_proc(unsigned int irq, struct irqaction *action);
33 #else
34 static inline void register_irq_proc(unsigned int irq, struct irq_desc *desc) { }
35 static inline void register_handler_proc(unsigned int irq,
36                                          struct irqaction *action) { }
37 static inline void unregister_handler_proc(unsigned int irq,
38                                            struct irqaction *action) { }
39 #endif
40
41 extern int irq_select_affinity_usr(unsigned int irq);
42
43 /*
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
51 static 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