#ifndef _LINUX_IRQNR_H #define _LINUX_IRQNR_H /* * Generic irq_desc iterators: */ #ifdef __KERNEL__ #ifndef CONFIG_GENERIC_HARDIRQS #include <asm/irq.h> /* * Wrappers for non-genirq architectures: */ #define nr_irqs NR_IRQS #define irq_to_desc(irq) (&irq_desc[irq]) # define for_each_irq_desc(irq, desc) \ for (irq = 0; irq < nr_irqs; irq++) # define for_each_irq_desc_reverse(irq, desc) \ for (irq = nr_irqs - 1; irq >= 0; irq--) #else /* CONFIG_GENERIC_HARDIRQS */ extern int nr_irqs; extern struct irq_desc *irq_to_desc(unsigned int irq); # define for_each_irq_desc(irq, desc) \ for (irq = 0, desc = irq_to_desc(irq); irq < nr_irqs; \ irq++, desc = irq_to_desc(irq)) \ if (!desc) \ ; \ else # define for_each_irq_desc_reverse(irq, desc) \ for (irq = nr_irqs - 1, desc = irq_to_desc(irq); irq >= 0; \ irq--, desc = irq_to_desc(irq)) \ if (!desc) \ ; \ else #ifdef CONFIG_SMP #define irq_node(irq) (irq_to_desc(irq)->node) #else #define irq_node(irq) 0 #endif #endif /* CONFIG_GENERIC_HARDIRQS */ #define for_each_irq_nr(irq) \ for (irq = 0; irq < nr_irqs; irq++) #endif /* __KERNEL__ */ #endif