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 spinlock_t sparse_irq_lock;
19 extern struct irq_desc *irq_desc_ptrs[NR_IRQS];
20
21 #ifdef CONFIG_PROC_FS
22 extern void register_irq_proc(unsigned int irq, struct irq_desc *desc);
23 extern void register_handler_proc(unsigned int irq, struct irqaction *action);
24 extern void unregister_handler_proc(unsigned int irq, struct irqaction *action);
25 #else
register_irq_proc(unsigned int irq,struct irq_desc * desc)26 static inline void register_irq_proc(unsigned int irq, struct irq_desc *desc) { }
register_handler_proc(unsigned int irq,struct irqaction * action)27 static inline void register_handler_proc(unsigned int irq,
28 struct irqaction *action) { }
unregister_handler_proc(unsigned int irq,struct irqaction * action)29 static inline void unregister_handler_proc(unsigned int irq,
30 struct irqaction *action) { }
31 #endif
32
33 extern int irq_select_affinity_usr(unsigned int irq);
34
35 /*
36 * Debugging printout:
37 */
38
39 #include <linux/kallsyms.h>
40
41 #define P(f) if (desc->status & f) printk("%14s set\n", #f)
42
print_irq_desc(unsigned int irq,struct irq_desc * desc)43 static inline void print_irq_desc(unsigned int irq, struct irq_desc *desc)
44 {
45 printk("irq %d, desc: %p, depth: %d, count: %d, unhandled: %d\n",
46 irq, desc, desc->depth, desc->irq_count, desc->irqs_unhandled);
47 printk("->handle_irq(): %p, ", desc->handle_irq);
48 print_symbol("%s\n", (unsigned long)desc->handle_irq);
49 printk("->chip(): %p, ", desc->chip);
50 print_symbol("%s\n", (unsigned long)desc->chip);
51 printk("->action(): %p\n", desc->action);
52 if (desc->action) {
53 printk("->action->handler(): %p, ", desc->action->handler);
54 print_symbol("%s\n", (unsigned long)desc->action->handler);
55 }
56
57 P(IRQ_INPROGRESS);
58 P(IRQ_DISABLED);
59 P(IRQ_PENDING);
60 P(IRQ_REPLAY);
61 P(IRQ_AUTODETECT);
62 P(IRQ_WAITING);
63 P(IRQ_LEVEL);
64 P(IRQ_MASKED);
65 #ifdef CONFIG_IRQ_PER_CPU
66 P(IRQ_PER_CPU);
67 #endif
68 P(IRQ_NOPROBE);
69 P(IRQ_NOREQUEST);
70 P(IRQ_NOAUTOEN);
71 }
72
73 #undef P
74
75