| Thomas Gleixner | dd3a1db | 2008-10-16 18:20:58 +0200 | [diff] [blame] | 1 | #ifndef _LINUX_IRQNR_H |
| 2 | #define _LINUX_IRQNR_H |
| 3 | |
| Ingo Molnar | 0ebb26e | 2008-12-12 11:26:39 +0100 | [diff] [blame] | 4 | /* |
| 5 | * Generic irq_desc iterators: |
| 6 | */ |
| 7 | #ifdef __KERNEL__ |
| 8 | |
| Thomas Gleixner | dd3a1db | 2008-10-16 18:20:58 +0200 | [diff] [blame] | 9 | #ifndef CONFIG_GENERIC_HARDIRQS |
| 10 | #include <asm/irq.h> |
| Ingo Molnar | be92d7a | 2009-01-05 14:34:42 +0100 | [diff] [blame] | 11 | |
| 12 | /* |
| 13 | * Wrappers for non-genirq architectures: |
| 14 | */ |
| 15 | #define nr_irqs NR_IRQS |
| 16 | #define irq_to_desc(irq) (&irq_desc[irq]) |
| Thomas Gleixner | dd3a1db | 2008-10-16 18:20:58 +0200 | [diff] [blame] | 17 | |
| 18 | # define for_each_irq_desc(irq, desc) \ |
| 19 | for (irq = 0; irq < nr_irqs; irq++) |
| Thomas Gleixner | dd3a1db | 2008-10-16 18:20:58 +0200 | [diff] [blame] | 20 | |
| Yinghai Lu | 240d367 | 2008-12-08 14:06:17 -0800 | [diff] [blame] | 21 | # define for_each_irq_desc_reverse(irq, desc) \ |
| 22 | for (irq = nr_irqs - 1; irq >= 0; irq--) |
| KOSAKI Motohiro | f9af0e7 | 2008-12-26 12:24:24 +0900 | [diff] [blame] | 23 | #else /* CONFIG_GENERIC_HARDIRQS */ |
| Ingo Molnar | 0ebb26e | 2008-12-12 11:26:39 +0100 | [diff] [blame] | 24 | |
| 25 | extern int nr_irqs; |
| KOSAKI Motohiro | f9af0e7 | 2008-12-26 12:24:24 +0900 | [diff] [blame] | 26 | extern struct irq_desc *irq_to_desc(unsigned int irq); |
| Ingo Molnar | 0ebb26e | 2008-12-12 11:26:39 +0100 | [diff] [blame] | 27 | |
| KOSAKI Motohiro | f9af0e7 | 2008-12-26 12:24:24 +0900 | [diff] [blame] | 28 | # define for_each_irq_desc(irq, desc) \ |
| 29 | for (irq = 0, desc = irq_to_desc(irq); irq < nr_irqs; \ |
| KOSAKI Motohiro | 18eefed | 2008-12-26 12:29:48 +0900 | [diff] [blame] | 30 | irq++, desc = irq_to_desc(irq)) \ |
| 31 | if (desc) |
| 32 | |
| 33 | |
| KOSAKI Motohiro | f9af0e7 | 2008-12-26 12:24:24 +0900 | [diff] [blame] | 34 | # define for_each_irq_desc_reverse(irq, desc) \ |
| 35 | for (irq = nr_irqs - 1, desc = irq_to_desc(irq); irq >= 0; \ |
| KOSAKI Motohiro | 18eefed | 2008-12-26 12:29:48 +0900 | [diff] [blame] | 36 | irq--, desc = irq_to_desc(irq)) \ |
| 37 | if (desc) |
| Yinghai Lu | 240d367 | 2008-12-08 14:06:17 -0800 | [diff] [blame] | 38 | |
| KOSAKI Motohiro | f9af0e7 | 2008-12-26 12:24:24 +0900 | [diff] [blame] | 39 | #endif /* CONFIG_GENERIC_HARDIRQS */ |
| Yinghai Lu | 240d367 | 2008-12-08 14:06:17 -0800 | [diff] [blame] | 40 | |
| 41 | #define for_each_irq_nr(irq) \ |
| 42 | for (irq = 0; irq < nr_irqs; irq++) |
| Thomas Gleixner | dd3a1db | 2008-10-16 18:20:58 +0200 | [diff] [blame] | 43 | |
| Ingo Molnar | 0ebb26e | 2008-12-12 11:26:39 +0100 | [diff] [blame] | 44 | #endif /* __KERNEL__ */ |
| 45 | |
| Thomas Gleixner | dd3a1db | 2008-10-16 18:20:58 +0200 | [diff] [blame] | 46 | #endif |