root/include/linux/irqnr.h

INCLUDED FROM

   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 
   8 extern int nr_irqs;
   9 extern struct irq_desc *irq_to_desc(unsigned int irq);
  10 unsigned 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