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- #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
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