File: delay.h

package info (click to toggle)
linux 4.9.25-1
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 794,052 kB
  • ctags: 3,033,799
  • sloc: ansic: 14,481,780; asm: 287,385; makefile: 35,234; perl: 27,553; sh: 15,791; python: 13,364; cpp: 6,087; yacc: 4,337; lex: 2,439; awk: 1,212; pascal: 231; lisp: 218; sed: 21
file content (22 lines) | stat: -rw-r--r-- 494 bytes parent folder | download | duplicates (23)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
#ifndef _ASM_PARISC_DELAY_H
#define _ASM_PARISC_DELAY_H

static __inline__ void __delay(unsigned long loops) {
	asm volatile(
	"	.balignl	64,0x34000034\n"
	"	addib,UV -1,%0,.\n"
	"	nop\n"
		: "=r" (loops) : "0" (loops));
}

extern void __udelay(unsigned long usecs);
extern void __udelay_bad(unsigned long usecs);

static inline void udelay(unsigned long usecs)
{
	if (__builtin_constant_p(usecs) && (usecs) > 20000)
		__udelay_bad(usecs);
	__udelay(usecs);
}

#endif /* _ASM_PARISC_DELAY_H */