| 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 |