linux/include/linux/irqnr.h
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   1#ifndef _LINUX_IRQNR_H
   2#define _LINUX_IRQNR_H
   3
   4#include <uapi/linux/irqnr.h>
   5
   6
   7#ifndef CONFIG_GENERIC_HARDIRQS
   8#include <asm/irq.h>
   9
  10/*
  11 * Wrappers for non-genirq architectures:
  12 */
  13#define nr_irqs                 NR_IRQS
  14#define irq_to_desc(irq)        (&irq_desc[irq])
  15
  16# define for_each_irq_desc(irq, desc)           \
  17        for (irq = 0; irq < nr_irqs; irq++)
  18
  19# define for_each_irq_desc_reverse(irq, desc)                          \
  20        for (irq = nr_irqs - 1; irq >= 0; irq--)
  21
  22#else /* CONFIG_GENERIC_HARDIRQS */
  23
  24extern int nr_irqs;
  25extern struct irq_desc *irq_to_desc(unsigned int irq);
  26unsigned int irq_get_next_irq(unsigned int offset);
  27
  28# define for_each_irq_desc(irq, desc)                                   \
  29        for (irq = 0, desc = irq_to_desc(irq); irq < nr_irqs;           \
  30             irq++, desc = irq_to_desc(irq))                            \
  31                if (!desc)                                              \
  32                        ;                                               \
  33                else
  34
  35
  36# define for_each_irq_desc_reverse(irq, desc)                           \
  37        for (irq = nr_irqs - 1, desc = irq_to_desc(irq); irq >= 0;      \
  38             irq--, desc = irq_to_desc(irq))                            \
  39                if (!desc)                                              \
  40                        ;                                               \
  41                else
  42
  43#ifdef CONFIG_SMP
  44#define irq_node(irq)   (irq_get_irq_data(irq)->node)
  45#else
  46#define irq_node(irq)   0
  47#endif
  48
  49# define for_each_active_irq(irq)                       \
  50        for (irq = irq_get_next_irq(0); irq < nr_irqs;  \
  51             irq = irq_get_next_irq(irq + 1))
  52
  53#endif /* CONFIG_GENERIC_HARDIRQS */
  54
  55#define for_each_irq_nr(irq)                   \
  56       for (irq = 0; irq < nr_irqs; irq++)
  57
  58#endif
  59
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