projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 867e359b CM |
1 | /* |
| 2 | * Copyright 2010 Tilera Corporation. All Rights Reserved. | |
| 3 | * | |
| 4 | * This program is free software; you can redistribute it and/or | |
| 5 | * modify it under the terms of the GNU General Public License | |
| 6 | * as published by the Free Software Foundation, version 2. | |
| 7 | * | |
| 8 | * This program is distributed in the hope that it will be useful, but | |
| 9 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 10 | * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or | |
| 11 | * NON INFRINGEMENT. See the GNU General Public License for | |
| 12 | * more details. | |
| 13 | */ | |
| 14 | ||
| 15 | #ifndef _ASM_TILE_DELAY_H | |
| 16 | #define _ASM_TILE_DELAY_H | |
| 17 | ||
| 18 | /* Undefined functions to get compile-time errors. */ | |
| 19 | extern void __bad_udelay(void); | |
| 20 | extern void __bad_ndelay(void); | |
| 21 | ||
| 22 | extern void __udelay(unsigned long usecs); | |
| 23 | extern void __ndelay(unsigned long nsecs); | |
| 24 | extern void __delay(unsigned long loops); | |
| 25 | ||
| 26 | #define udelay(n) (__builtin_constant_p(n) ? \ | |
| 27 | ((n) > 20000 ? __bad_udelay() : __ndelay((n) * 1000)) : \ | |
| 28 | __udelay(n)) | |
| 29 | ||
| 30 | #define ndelay(n) (__builtin_constant_p(n) ? \ | |
| 31 | ((n) > 20000 ? __bad_ndelay() : __ndelay(n)) : \ | |
| 32 | __ndelay(n)) | |
| 33 | ||
| 34 | #endif /* _ASM_TILE_DELAY_H */ |