1 /* delay.h: Linux delay routines on sparc64.
3 * Copyright (C) 1996, 2004 David S. Miller (davem@davemloft.net).
5 * Based heavily upon x86 variant which is:
6 * Copyright (C) 1993 Linus Torvalds
8 * Delay routines calling functions in arch/sparc64/lib/delay.c
11 #ifndef __SPARC64_DELAY_H
12 #define __SPARC64_DELAY_H
14 #include <linux/config.h>
15 #include <linux/param.h>
16 #include <asm/cpudata.h>
20 extern void __bad_udelay(void);
21 extern void __bad_ndelay(void);
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);
28 #define udelay(n) (__builtin_constant_p(n) ? \
29 ((n) > 20000 ? __bad_udelay() : __const_udelay((n) * 0x10c7ul)) : \
32 #define ndelay(n) (__builtin_constant_p(n) ? \
33 ((n) > 20000 ? __bad_ndelay() : __const_udelay((n) * 5ul)) : \
36 #endif /* !__ASSEMBLY__ */
38 #endif /* defined(__SPARC64_DELAY_H) */