| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #ifndef __UM_DELAY_H |
| 2 | #define __UM_DELAY_H |
| 3 | |
| Bodo Stroesser | 5fd861b | 2005-05-05 16:15:37 -0700 | [diff] [blame] | 4 | #define MILLION 1000000 |
| 5 | |
| Paolo 'Blaisorblade' Giarrusso | 10fa115 | 2007-04-01 23:49:37 -0700 | [diff] [blame] | 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 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 20 | #endif |