diff options
Diffstat (limited to 'include/linux/irqnr.h')
| -rw-r--r-- | include/linux/irqnr.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/include/linux/irqnr.h b/include/linux/irqnr.h new file mode 100644 index 00000000..3bc4dcab --- /dev/null +++ b/include/linux/irqnr.h @@ -0,0 +1,62 @@ +#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); +unsigned int irq_get_next_irq(unsigned int offset); + +# 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_get_irq_data(irq)->node) +#else +#define irq_node(irq) 0 +#endif + +# define for_each_active_irq(irq) \ + for (irq = irq_get_next_irq(0); irq < nr_irqs; \ + irq = irq_get_next_irq(irq + 1)) + +#endif /* CONFIG_GENERIC_HARDIRQS */ + +#define for_each_irq_nr(irq) \ + for (irq = 0; irq < nr_irqs; irq++) + +#endif /* __KERNEL__ */ + +#endif |