Merge /spare/repo/linux-2.6/
[linux-2.6-block.git] / arch / um / sys-i386 / delay.c
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1#include <linux/module.h>
2#include <linux/kernel.h>
3#include <linux/delay.h>
4#include <asm/param.h>
5fd861b6 5
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6void __delay(unsigned long time)
7{
8 /* Stolen from the i386 __loop_delay */
9 int d0;
10 __asm__ __volatile__(
11 "\tjmp 1f\n"
12 ".align 16\n"
13 "1:\tjmp 2f\n"
14 ".align 16\n"
15 "2:\tdecl %0\n\tjns 2b"
16 :"=&a" (d0)
17 :"0" (time));
18}
19
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20void __udelay(unsigned long usecs)
21{
22 int i, n;
23
24 n = (loops_per_jiffy * HZ * usecs) / MILLION;
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25 for(i=0;i<n;i++)
26 cpu_relax();
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27}
28
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29EXPORT_SYMBOL(__udelay);
30
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31void __const_udelay(unsigned long usecs)
32{
33 int i, n;
34
35 n = (loops_per_jiffy * HZ * usecs) / MILLION;
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36 for(i=0;i<n;i++)
37 cpu_relax();
5fd861b6 38}
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39
40EXPORT_SYMBOL(__const_udelay);