| #ifndef _ASM_POWERPC_DELAY_H | |
| #define _ASM_POWERPC_DELAY_H | |
| #ifdef __KERNEL__ | |
| /* | |
| * Copyright 1996, Paul Mackerras. | |
| * | |
| * This program is free software; you can redistribute it and/or | |
| * modify it under the terms of the GNU General Public License | |
| * as published by the Free Software Foundation; either version | |
| * 2 of the License, or (at your option) any later version. | |
| * | |
| * PPC64 Support added by Dave Engebretsen, Todd Inglett, Mike Corrigan, | |
| * Anton Blanchard. | |
| */ | |
| extern void __delay(unsigned long loops); | |
| extern void udelay(unsigned long usecs); | |
| /* | |
| * On shared processor machines the generic implementation of mdelay can | |
| * result in large errors. While each iteration of the loop inside mdelay | |
| * is supposed to take 1ms, the hypervisor could sleep our partition for | |
| * longer (eg 10ms). With the right timing these errors can add up. | |
| * | |
| * Since there is no 32bit overflow issue on 64bit kernels, just call | |
| * udelay directly. | |
| */ | |
| #ifdef CONFIG_PPC64 | |
| #define mdelay(n) udelay((n) * 1000) | |
| #endif | |
| #endif /* __KERNEL__ */ | |
| #endif /* _ASM_POWERPC_DELAY_H */ |