fs: use kmem_cache_zalloc instead
[pv_ops_mirror.git] / include / asm-x86 / delay_64.h
blobc2669f1f5529065e83e6eaf58a17943aff5e81c0
1 #ifndef _X8664_DELAY_H
2 #define _X8664_DELAY_H
4 /*
5 * Copyright (C) 1993 Linus Torvalds
7 * Delay routines calling functions in arch/x86_64/lib/delay.c
8 */
10 /* Undefined functions to get compile-time errors */
11 extern void __bad_udelay(void);
12 extern void __bad_ndelay(void);
14 extern void __udelay(unsigned long usecs);
15 extern void __ndelay(unsigned long nsecs);
16 extern void __const_udelay(unsigned long usecs);
17 extern void __delay(unsigned long loops);
19 /* 0x10c7 is 2**32 / 1000000 (rounded up) */
20 #define udelay(n) (__builtin_constant_p(n) ? \
21 ((n) > 20000 ? __bad_udelay() : __const_udelay((n) * 0x10c7ul)) : \
22 __udelay(n))
24 /* 0x5 is 2**32 / 1000000000 (rounded up) */
25 #define ndelay(n) (__builtin_constant_p(n) ? \
26 ((n) > 20000 ? __bad_ndelay() : __const_udelay((n) * 5ul)) : \
27 __ndelay(n))
30 #endif /* defined(_X8664_DELAY_H) */