tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#ifdef __KERNEL__
2#ifndef __ASM_HARDIRQ_H
3#define __ASM_HARDIRQ_H
4
5#include <linux/config.h>
6#include <linux/threads.h>
7#include <linux/irq.h>
8
9typedef struct {
10 unsigned int __softirq_pending;
11} ____cacheline_aligned irq_cpustat_t;
12
13#include <linux/irq_cpustat.h> /* Standard mappings for irq_cpustat_t above */
14
15#if NR_IRQS > 256
16#define HARDIRQ_BITS 9
17#else
18#define HARDIRQ_BITS 8
19#endif
20
21/*
22 * The hardirq mask has to be large enough to have
23 * space for potentially all IRQ sources in the system
24 * nesting on a single CPU:
25 */
26#if (1 << HARDIRQ_BITS) < NR_IRQS
27# error HARDIRQ_BITS is too low!
28#endif
29
30static inline void ack_bad_irq(int irq)
31{
32 printk(KERN_CRIT "unexpected IRQ trap at vector %02x\n", irq);
33 BUG();
34}
35
36#endif /* __ASM_HARDIRQ_H */
37#endif /* __KERNEL__ */