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#ifndef __ASM_HARDIRQ_H
#define __ASM_HARDIRQ_H
#include <linux/config.h>
#include <linux/threads.h>
extern unsigned int local_irq_count[NR_CPUS];
extern unsigned int local_bh_count[NR_CPUS];
#define local_irq_count(cpu) (local_irq_count[(cpu)])
#define local_bh_count(cpu) (local_bh_count[(cpu)])
/*
* Are we in an interrupt context? Either doing bottom half
* or hardware interrupt processing?
*/
#define in_interrupt() ({ const int __cpu = smp_processor_id(); \
(local_irq_count(__cpu) + local_bh_count(__cpu) != 0); })
#define in_irq() (local_irq_count(smp_processor_id()) != 0)
#ifndef CONFIG_SMP
#define hardirq_trylock(cpu) (local_irq_count(cpu) == 0)
#define hardirq_endlock(cpu) do { } while (0)
#define irq_enter(cpu,irq) (local_irq_count(cpu)++)
#define irq_exit(cpu,irq) (local_irq_count(cpu)--)
#define synchronize_irq() do { } while (0)
#else
#error SMP not supported
#endif /* CONFIG_SMP */
#endif /* __ASM_HARDIRQ_H */
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