1 #ifndef __ASM_HARDIRQ_H
2 #define __ASM_HARDIRQ_H
4 #include <linux/config.h>
5 #include <linux/cache.h>
6 #include <linux/threads.h>
10 unsigned int __softirq_pending;
11 } ____cacheline_aligned irq_cpustat_t;
13 #include <linux/irq_cpustat.h> /* Standard mappings for irq_cpustat_t above */
16 #define HARDIRQ_BITS 9
18 #define HARDIRQ_BITS 8
22 * The hardirq mask has to be large enough to have space
23 * for potentially all IRQ sources in the system nesting
26 #if (1 << HARDIRQ_BITS) < NR_IRQS
27 # error HARDIRQ_BITS is too low!
30 #define irq_enter() (preempt_count() += HARDIRQ_OFFSET)
32 extern asmlinkage void __do_softirq(void);
36 preempt_count() -= IRQ_EXIT_OFFSET; \
37 if (!in_interrupt() && local_softirq_pending()) \
39 preempt_enable_no_resched(); \
42 #endif /* __ASM_HARDIRQ_H */