Commit | Line | Data |
---|---|---|
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--) | |
9332fccd | 23 | |
f9af0e70 | 24 | #else /* CONFIG_GENERIC_HARDIRQS */ |
0ebb26e7 IM |
25 | |
26 | extern int nr_irqs; | |
f9af0e70 | 27 | extern struct irq_desc *irq_to_desc(unsigned int irq); |
0ebb26e7 | 28 | |
f9af0e70 KM |
29 | # define for_each_irq_desc(irq, desc) \ |
30 | for (irq = 0, desc = irq_to_desc(irq); irq < nr_irqs; \ | |
18eefedf | 31 | irq++, desc = irq_to_desc(irq)) \ |
01d07820 KM |
32 | if (!desc) \ |
33 | ; \ | |
34 | else | |
18eefedf KM |
35 | |
36 | ||
f9af0e70 KM |
37 | # define for_each_irq_desc_reverse(irq, desc) \ |
38 | for (irq = nr_irqs - 1, desc = irq_to_desc(irq); irq >= 0; \ | |
18eefedf | 39 | irq--, desc = irq_to_desc(irq)) \ |
01d07820 KM |
40 | if (!desc) \ |
41 | ; \ | |
42 | else | |
240d367b | 43 | |
5bfb5b51 YL |
44 | #ifdef CONFIG_SMP |
45 | #define irq_node(irq) (irq_to_desc(irq)->node) | |
46 | #else | |
47 | #define irq_node(irq) 0 | |
48 | #endif | |
49 | ||
f9af0e70 | 50 | #endif /* CONFIG_GENERIC_HARDIRQS */ |
240d367b YL |
51 | |
52 | #define for_each_irq_nr(irq) \ | |
53 | for (irq = 0; irq < nr_irqs; irq++) | |
dd3a1db9 | 54 | |
0ebb26e7 IM |
55 | #endif /* __KERNEL__ */ |
56 | ||
dd3a1db9 | 57 | #endif |