| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* delay.h: Linux delay routines on sparc64. |
| 2 | * |
| 3 | * Copyright (C) 1996, 2004 David S. Miller (davem@davemloft.net). |
| 4 | * |
| 5 | * Based heavily upon x86 variant which is: |
| 6 | * Copyright (C) 1993 Linus Torvalds |
| 7 | * |
| 8 | * Delay routines calling functions in arch/sparc64/lib/delay.c |
| 9 | */ |
| 10 | |
| 11 | #ifndef __SPARC64_DELAY_H |
| 12 | #define __SPARC64_DELAY_H |
| 13 | |
| 14 | #include <linux/config.h> |
| 15 | #include <linux/param.h> |
| 16 | #include <asm/cpudata.h> |
| 17 | |
| 18 | #ifndef __ASSEMBLY__ |
| 19 | |
| 20 | extern void __bad_udelay(void); |
| 21 | extern void __bad_ndelay(void); |
| 22 | |
| 23 | extern void __udelay(unsigned long usecs); |
| 24 | extern void __ndelay(unsigned long nsecs); |
| 25 | extern void __const_udelay(unsigned long usecs); |
| 26 | extern void __delay(unsigned long loops); |
| 27 | |
| 28 | #define udelay(n) (__builtin_constant_p(n) ? \ |
| 29 | ((n) > 20000 ? __bad_udelay() : __const_udelay((n) * 0x10c7ul)) : \ |
| 30 | __udelay(n)) |
| 31 | |
| 32 | #define ndelay(n) (__builtin_constant_p(n) ? \ |
| 33 | ((n) > 20000 ? __bad_ndelay() : __const_udelay((n) * 5ul)) : \ |
| 34 | __ndelay(n)) |
| 35 | |
| 36 | #endif /* !__ASSEMBLY__ */ |
| 37 | |
| 38 | #endif /* defined(__SPARC64_DELAY_H) */ |