softirq.h

来自「this SRC packet is the headfiles that MI」· C头文件 代码 · 共 28 行

/* softirq.h: 32-bit Sparc soft IRQ support.
 *
 * Copyright (C) 1997 David S. Miller ([e-mail])
 * Copyright (C) 1998-99 Anton Blanchard ([e-mail])
 */

#ifndef __SPARC_SOFTIRQ_H
#define __SPARC_SOFTIRQ_H

#include <linux/threads.h>	/* For NR_CPUS */

#include <asm/atomic.h>
#include <asm/smp.h>
#include <asm/hardirq.h>

#define local_bh_disable()	(local_bh_count(smp_processor_id())++)
#define __local_bh_enable()	(local_bh_count(smp_processor_id())--)
#define local_bh_enable()			  \
do { if (!--local_bh_count(smp_processor_id()) && \
	 softirq_pending(smp_processor_id())) {   \
		do_softirq();			  \
		__sti();			  \
     }						  \
} while (0)
#define in_softirq() (local_bh_count(smp_processor_id()) != 0)

#endif	/* __SPARC_SOFTIRQ_H */