50 lines
1.1 KiB
C
50 lines
1.1 KiB
C
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/*
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* Portions Copyright 2008 VMware, Inc.
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*/
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#ifndef _X8664_DELAY_H
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#define _X8664_DELAY_H
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/*
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* Copyright (C) 1993 Linus Torvalds
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*
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* Delay routines calling functions in arch/x86_64/lib/delay.c
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*/
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#if defined(__VMKLNX__)
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#include "vmkapi.h"
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#define udelay(n) vmk_DelayUsecs((vmk_uint32) (n))
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#else /* !defined(__VMKLNX__) */
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extern void __bad_udelay(void);
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extern void __bad_ndelay(void);
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extern void __udelay(unsigned long usecs);
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extern void __ndelay(unsigned long usecs);
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extern void __const_udelay(unsigned long usecs);
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extern void __delay(unsigned long loops);
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/**
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* udelay - delay for n microseconds
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* @n: number of microseconds to delay
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*
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* SYNOPSIS:
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* #define udelay(n)
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*
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* RETURN VALUE:
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* none
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*
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*/
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/* _VMKLNX_CODECHECK_: udelay */
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#define udelay(n) (__builtin_constant_p(n) ? \
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((n) > 20000 ? __bad_udelay() : __const_udelay((n) * 0x10c6ul)) : \
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__udelay(n))
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#define ndelay(n) (__builtin_constant_p(n) ? \
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((n) > 20000 ? __bad_ndelay() : __const_udelay((n) * 5ul)) : \
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__ndelay(n))
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#endif /* defined(__VMKLNX__) */
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#endif /* defined(_X8664_DELAY_H) */
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