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