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dd3a1db9 TG |
1 | #ifndef _LINUX_IRQNR_H |
2 | #define _LINUX_IRQNR_H | |
3 | ||
0ebb26e7 IM |
4 | /* |
5 | * Generic irq_desc iterators: | |
6 | */ | |
7 | #ifdef __KERNEL__ | |
8 | ||
dd3a1db9 TG |
9 | #ifndef CONFIG_GENERIC_HARDIRQS |
10 | #include <asm/irq.h> | |
be92d7af IM |
11 | |
12 | /* | |
13 | * Wrappers for non-genirq architectures: | |
14 | */ | |
15 | #define nr_irqs NR_IRQS | |
16 | #define irq_to_desc(irq) (&irq_desc[irq]) | |
dd3a1db9 TG |
17 | |
18 | # define for_each_irq_desc(irq, desc) \ | |
19 | for (irq = 0; irq < nr_irqs; irq++) | |
dd3a1db9 | 20 | |
240d367b YL |
21 | # define for_each_irq_desc_reverse(irq, desc) \ |
22 | for (irq = nr_irqs - 1; irq >= 0; irq--) | |
f9af0e70 | 23 | #else /* CONFIG_GENERIC_HARDIRQS */ |
0ebb26e7 IM |
24 | |
25 | extern int nr_irqs; | |
f9af0e70 | 26 | extern struct irq_desc *irq_to_desc(unsigned int irq); |
0ebb26e7 | 27 | |
f9af0e70 KM |
28 | # define for_each_irq_desc(irq, desc) \ |
29 | for (irq = 0, desc = irq_to_desc(irq); irq < nr_irqs; \ | |
18eefedf KM |
30 | irq++, desc = irq_to_desc(irq)) \ |
31 | if (desc) | |
32 | ||
33 | ||
f9af0e70 KM |
34 | # define for_each_irq_desc_reverse(irq, desc) \ |
35 | for (irq = nr_irqs - 1, desc = irq_to_desc(irq); irq >= 0; \ | |
18eefedf KM |
36 | irq--, desc = irq_to_desc(irq)) \ |
37 | if (desc) | |
240d367b | 38 | |
f9af0e70 | 39 | #endif /* CONFIG_GENERIC_HARDIRQS */ |
240d367b YL |
40 | |
41 | #define for_each_irq_nr(irq) \ | |
42 | for (irq = 0; irq < nr_irqs; irq++) | |
dd3a1db9 | 43 | |
0ebb26e7 IM |
44 | #endif /* __KERNEL__ */ |
45 | ||
dd3a1db9 | 46 | #endif |