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 35