1 #ifndef _LINUX_IRQNR_H 2 #define _LINUX_IRQNR_H 3 4 /* 5 * Generic irq_desc iterators: 6 */ 7 #ifdef __KERNEL__ 8 9 #ifndef CONFIG_GENERIC_HARDIRQS 10 #include <asm/irq.h> 11 12 /* 13 * Wrappers for non-genirq architectures: 14 */ 15 #define nr_irqs NR_IRQS 16 #define irq_to_desc(irq) (&irq_desc[irq]) 17 18 # define for_each_irq_desc(irq, desc) \ 19 for (irq = 0; irq < nr_irqs; irq++) 20 21 # define for_each_irq_desc_reverse(irq, desc) \ 22 for (irq = nr_irqs - 1; irq >= 0; irq--) 23 #else /* CONFIG_GENERIC_HARDIRQS */ 24 25 extern int nr_irqs; 26 extern struct irq_desc *irq_to_desc(unsigned int irq); 27 28 # define for_each_irq_desc(irq, desc) \ 29 for (irq = 0, desc = irq_to_desc(irq); irq < nr_irqs; \ 30 irq++, desc = irq_to_desc(irq)) \ 31 if (desc) 32 33 34 # define for_each_irq_desc_reverse(irq, desc) \ 35 for (irq = nr_irqs - 1, desc = irq_to_desc(irq); irq >= 0; \ 36 irq--, desc = irq_to_desc(irq)) \ 37 if (desc) 38 39 #endif /* CONFIG_GENERIC_HARDIRQS */ 40 41 #define for_each_irq_nr(irq) \ 42 for (irq = 0; irq < nr_irqs; irq++) 43 44 #endif /* __KERNEL__ */ 45 46 #endif 47