kernel/include/linux/irqnr.h

   1 #ifndef _LINUX_IRQNR_H
   2 #define _LINUX_IRQNR_H
   3
   4 #include <uapi/linux/irqnr.h>
   5
   6
   7 extern int nr_irqs;
   8 extern struct irq_desc *irq_to_desc(unsigned int irq);
   9 unsigned int irq_get_next_irq(unsigned int offset);
  10
  11 # define for_each_irq_desc(irq, desc)                                   \
  12         for (irq = 0, desc = irq_to_desc(irq); irq < nr_irqs;           \
  13              irq++, desc = irq_to_desc(irq))                            \
  14                 if (!desc)                                              \
  15                         ;                                               \
  16                 else
  17
  18
  19 # define for_each_irq_desc_reverse(irq, desc)                           \
  20         for (irq = nr_irqs - 1, desc = irq_to_desc(irq); irq >= 0;      \
  21              irq--, desc = irq_to_desc(irq))                            \
  22                 if (!desc)                                              \
  23                         ;                                               \
  24                 else
  25
  26 #ifdef CONFIG_SMP
  27 #define irq_node(irq)   (irq_get_irq_data(irq)->node)
  28 #else
  29 #define irq_node(irq)   0
  30 #endif
  31
  32 # define for_each_active_irq(irq)                       \
  33         for (irq = irq_get_next_irq(0); irq < nr_irqs;  \
  34              irq = irq_get_next_irq(irq + 1))
  35
  36 #define for_each_irq_nr(irq)                   \
  37        for (irq = 0; irq < nr_irqs; irq++)
  38
  39 #endif