1#ifndef __UM_DELAY_H
2#define __UM_DELAY_H
3
4#define MILLION 1000000
5
6/* Undefined on purpose */
7extern void __bad_udelay(void);
8
9extern void __udelay(unsigned long usecs);
10extern 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. */
17extern void __unimplemented_ndelay(void);
18#define ndelay(n) __unimplemented_ndelay()
19
20#endif
21