| #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 */ |
