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 24 #else /* CONFIG_GENERIC_HARDIRQS */ 25 26 extern int nr_irqs; 27 extern struct irq_desc *irq_to_desc(unsigned int irq); 28 unsigned int irq_get_next_irq(unsigned int offset); 29 30 # define for_each_irq_desc(irq, desc) \ 31 for (irq = 0, desc = irq_to_desc(irq); irq < nr_irqs; \ 32 irq++, desc = irq_to_desc(irq)) \ 33 if (!desc) \ 34 ; \ 35 else 36 37 38 # define for_each_irq_desc_reverse(irq, desc) \ 39 for (irq = nr_irqs - 1, desc = irq_to_desc(irq); irq >= 0; \ 40 irq--, desc = irq_to_desc(irq)) \ 41 if (!desc) \ 42 ; \ 43 else 44 45 #ifdef CONFIG_SMP 46 #define irq_node(irq) (irq_get_irq_data(irq)->node) 47 #else 48 #define irq_node(irq) 0 49 #endif 50 51 # define for_each_active_irq(irq) \ 52 for (irq = irq_get_next_irq(0); irq < nr_irqs; \ 53 irq = irq_get_next_irq(irq + 1)) 54 55 #endif /* CONFIG_GENERIC_HARDIRQS */ 56 57 #define for_each_irq_nr(irq) \ 58 for (irq = 0; irq < nr_irqs; irq++) 59 60 #endif /* __KERNEL__ */ 61 62 #endif 63