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File: [Development] / linux-2.4-xfs / include / asm-sparc64 / softirq.h (download)

Revision 1.2, Tue Aug 15 16:59:39 2006 UTC (11 years, 2 months ago) by nathans.longdrop.melbourne.sgi.com
Branch: MAIN
CVS Tags: HEAD
Changes since 1.1: +1 -1 lines 

Merge up to 2.4.33.
Merge of 2.4.x-xfs-melb:linux:26774a by kenmcd.

/* softirq.h: 64-bit Sparc soft IRQ support.
 *
 * Copyright (C) 1997, 1998 David S. Miller (davem@caip.rutgers.edu)
 */

#ifndef __SPARC64_SOFTIRQ_H
#define __SPARC64_SOFTIRQ_H

#include <asm/atomic.h>
#include <asm/hardirq.h>
#include <asm/system.h>		/* for membar_safe() */

#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 /* !(__SPARC64_SOFTIRQ_H) */