include/linux/irqnr.h

   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
  24 extern int nr_irqs;
  25 extern struct irq_desc *irq_to_desc(unsigned int irq);
  26 unsigned 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