irqnr.h 856 B

12345678910111213141516171819202122232425262728293031323334
  1. /* SPDX-License-Identifier: GPL-2.0 */
  2. #ifndef _LINUX_IRQNR_H
  3. #define _LINUX_IRQNR_H
  4. #include <uapi/linux/irqnr.h>
  5. extern int nr_irqs;
  6. extern struct irq_desc *irq_to_desc(unsigned int irq);
  7. unsigned int irq_get_next_irq(unsigned int offset);
  8. # define for_each_irq_desc(irq, desc) \
  9. for (irq = 0, desc = irq_to_desc(irq); irq < nr_irqs; \
  10. irq++, desc = irq_to_desc(irq)) \
  11. if (!desc) \
  12. ; \
  13. else
  14. # define for_each_irq_desc_reverse(irq, desc) \
  15. for (irq = nr_irqs - 1, desc = irq_to_desc(irq); irq >= 0; \
  16. irq--, desc = irq_to_desc(irq)) \
  17. if (!desc) \
  18. ; \
  19. else
  20. # define for_each_active_irq(irq) \
  21. for (irq = irq_get_next_irq(0); irq < nr_irqs; \
  22. irq = irq_get_next_irq(irq + 1))
  23. #define for_each_irq_nr(irq) \
  24. for (irq = 0; irq < nr_irqs; irq++)
  25. #endif