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linux-2.6
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linux-2.6/arch/um/sys-x86_64/delay.c

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C

/*
* Copyright 2003 PathScale, Inc.
* Copied from arch/x86_64
*
* Licensed under the GPL
*/
#include <linux/module.h>
#include <linux/delay.h>
#include <asm/processor.h>
#include <asm/param.h>
void __delay(unsigned long loops)
{
unsigned long i;
for(i = 0; i < loops; i++)
cpu_relax();
}
void __udelay(unsigned long usecs)
{
unsigned long i, n;
n = (loops_per_jiffy * HZ * usecs) / MILLION;
for(i=0;i<n;i++)
cpu_relax();
}
EXPORT_SYMBOL(__udelay);
void __const_udelay(unsigned long usecs)
{
unsigned long i, n;
n = (loops_per_jiffy * HZ * usecs) / MILLION;
for(i=0;i<n;i++)
cpu_relax();
}
EXPORT_SYMBOL(__const_udelay);