[linux-block.git] / include / asm-um / delay.h

#ifndef __UM_DELAY_H
#define __UM_DELAY_H

#define MILLION 1000000

/* Undefined on purpose */
extern void __bad_udelay(void);

extern void __udelay(unsigned long usecs);
extern void __delay(unsigned long loops);

#define udelay(n) ((__builtin_constant_p(n) && (n) > 20000) ? \
	__bad_udelay() : __udelay(n))

/* It appears that ndelay is not used at all for UML, and has never been
 * implemented. */
extern void __unimplemented_ndelay(void);
#define ndelay(n) __unimplemented_ndelay()

#endif
Commit	Line	Data
1da177e4 LT	1	#ifndef __UM_DELAY_H
	2	#define __UM_DELAY_H
	3
5fd861b6 BS	4	#define MILLION 1000000
5fd861b6 BS	5
10fa1155 PBG	6	/* Undefined on purpose */
	7	extern void __bad_udelay(void);
	8
	9	extern void __udelay(unsigned long usecs);
	10	extern void __delay(unsigned long loops);
	11
	12	#define udelay(n) ((__builtin_constant_p(n) && (n) > 20000) ? \
	13	__bad_udelay() : __udelay(n))
	14
	15	/* It appears that ndelay is not used at all for UML, and has never been
	16	* implemented. */
	17	extern void __unimplemented_ndelay(void);
	18	#define ndelay(n) __unimplemented_ndelay()
	19
1da177e4	20	#endif