delay.h 537 字节
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/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _CRIS_DELAY_H
#define _CRIS_DELAY_H

/*
 * Copyright (C) 1998-2002 Axis Communications AB
 *
 * Delay routines, using a pre-computed "loops_per_second" value.
 */

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#include <arch/delay.h>
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/* Use only for very small delays ( < 1 msec).  */

extern unsigned long loops_per_usec; /* arch/cris/mm/init.c */

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/* May be defined by arch/delay.h. */
#ifndef udelay
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static inline void udelay(unsigned long usecs)
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{
	__delay(usecs * loops_per_usec);
}
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#endif
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#endif /* defined(_CRIS_DELAY_H) */