tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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# define nr_irqs NR_IRQS
12
13# define for_each_irq_desc(irq, desc) \
14 for (irq = 0; irq < nr_irqs; irq++)
15
16# define for_each_irq_desc_reverse(irq, desc) \
17 for (irq = nr_irqs - 1; irq >= 0; irq--)
18#else /* CONFIG_GENERIC_HARDIRQS */
19
20extern int nr_irqs;
21extern struct irq_desc *irq_to_desc(unsigned int irq);
22
23# define for_each_irq_desc(irq, desc) \
24 for (irq = 0, desc = irq_to_desc(irq); irq < nr_irqs; \
25 irq++, desc = irq_to_desc(irq)) \
26 if (desc)
27
28
29# define for_each_irq_desc_reverse(irq, desc) \
30 for (irq = nr_irqs - 1, desc = irq_to_desc(irq); irq >= 0; \
31 irq--, desc = irq_to_desc(irq)) \
32 if (desc)
33
34#endif /* CONFIG_GENERIC_HARDIRQS */
35
36#define for_each_irq_nr(irq) \
37 for (irq = 0; irq < nr_irqs; irq++)
38
39#endif /* __KERNEL__ */
40
41#endif