This source file includes following definitions.
- __delay
- __const_udelay
- __udelay
- __ndelay
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8 #include <linux/module.h>
9 #include <linux/delay.h>
10 #include <asm/param.h>
11 #include <asm/processor.h>
12 #include <asm/timex.h>
13
14 void __delay(unsigned long cycles)
15 {
16 __asm__ volatile ("1: dec.l #1,%0\n\t"
17 "bne 1b":"=r"(cycles):"0"(cycles));
18 }
19 EXPORT_SYMBOL(__delay);
20
21 void __const_udelay(unsigned long xloops)
22 {
23 u64 loops;
24
25 loops = (u64)xloops * loops_per_jiffy * HZ;
26
27 __delay(loops >> 32);
28 }
29 EXPORT_SYMBOL(__const_udelay);
30
31 void __udelay(unsigned long usecs)
32 {
33 __const_udelay(usecs * 0x10C7UL);
34 }
35 EXPORT_SYMBOL(__udelay);
36
37 void __ndelay(unsigned long nsecs)
38 {
39 __const_udelay(nsecs * 0x5UL);
40 }
41 EXPORT_SYMBOL(__ndelay);