genirq: keep affinities set from userspace across free/request_irq()
[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 #ifdef CONFIG_PROC_FS
17 extern void register_irq_proc(unsigned int irq, struct irq_desc *desc);
18 extern void register_handler_proc(unsigned int irq, struct irqaction *action);
19 extern void unregister_handler_proc(unsigned int irq, struct irqaction *action);
20 #else
21 static inline void register_irq_proc(unsigned int irq, struct irq_desc *desc) { }
22 static inline void register_handler_proc(unsigned int irq,
23                                          struct irqaction *action) { }
24 static inline void unregister_handler_proc(unsigned int irq,
25                                            struct irqaction *action) { }
26 #endif
27
28 extern int irq_select_affinity_usr(unsigned int irq);
29
30 /*
31  * Debugging printout:
32  */
33
34 #include <linux/kallsyms.h>
35
36 #define P(f) if (desc->status & f) printk("%14s set\n", #f)
37
38 static inline void print_irq_desc(unsigned int irq, struct irq_desc *desc)
39 {
40         printk("irq %d, desc: %p, depth: %d, count: %d, unhandled: %d\n",
41                 irq, desc, desc->depth, desc->irq_count, desc->irqs_unhandled);
42         printk("->handle_irq():  %p, ", desc->handle_irq);
43         print_symbol("%s\n", (unsigned long)desc->handle_irq);
44         printk("->chip(): %p, ", desc->chip);
45         print_symbol("%s\n", (unsigned long)desc->chip);
46         printk("->action(): %p\n", desc->action);
47         if (desc->action) {
48                 printk("->action->handler(): %p, ", desc->action->handler);
49                 print_symbol("%s\n", (unsigned long)desc->action->handler);
50         }
51
52         P(IRQ_INPROGRESS);
53         P(IRQ_DISABLED);
54         P(IRQ_PENDING);
55         P(IRQ_REPLAY);
56         P(IRQ_AUTODETECT);
57         P(IRQ_WAITING);
58         P(IRQ_LEVEL);
59         P(IRQ_MASKED);
60 #ifdef CONFIG_IRQ_PER_CPU
61         P(IRQ_PER_CPU);
62 #endif
63         P(IRQ_NOPROBE);
64         P(IRQ_NOREQUEST);
65         P(IRQ_NOAUTOEN);
66 }
67
68 #undef P
69