LXR linux/include/linux/irqnr.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef _LINUX_IRQNR_H
   3#define _LINUX_IRQNR_H
   4
   5#include <uapi/linux/irqnr.h>
   6
   7
   8extern int nr_irqs;
   9extern struct irq_desc *irq_to_desc(unsigned int irq);
  10unsigned int irq_get_next_irq(unsigned int offset);
  11
  12# define for_each_irq_desc(irq, desc)                                   \
  13        for (irq = 0, desc = irq_to_desc(irq); irq < nr_irqs;           \
  14             irq++, desc = irq_to_desc(irq))                            \
  15                if (!desc)                                              \
  16                        ;                                               \
  17                else
  18
  19
  20# define for_each_irq_desc_reverse(irq, desc)                           \
  21        for (irq = nr_irqs - 1, desc = irq_to_desc(irq); irq >= 0;      \
  22             irq--, desc = irq_to_desc(irq))                            \
  23                if (!desc)                                              \
  24                        ;                                               \
  25                else
  26
  27# define for_each_active_irq(irq)                       \
  28        for (irq = irq_get_next_irq(0); irq < nr_irqs;  \
  29             irq = irq_get_next_irq(irq + 1))
  30
  31#define for_each_irq_nr(irq)                   \
  32       for (irq = 0; irq < nr_irqs; irq++)
  33
  34#endif
  35