/* SPDX-License-Identifier: GPL-2.0 */
/*
 * delay.h: Linux delay routines on the Sparc.
 *
 * Copyright (C) 1994 David S. Miller (davem@caip.rutgers.edu).
 */

#ifndef __SPARC_DELAY_H
#define __SPARC_DELAY_H

#include <asm/cpudata.h>

static inline void __delay(unsigned long loops)
{
        __asm__ __volatile__("cmp %0, 0\n\t"
                             "1: bne 1b\n\t"
                             "subcc %0, 1, %0\n" :
                             "=&r" (loops) :
                             "0" (loops) :
                             "cc");
}

/* This is too messy with inline asm on the Sparc. */
void __udelay(unsigned long usecs, unsigned long lpj);
void __ndelay(unsigned long nsecs, unsigned long lpj);

#ifdef CONFIG_SMP
#define __udelay_val    cpu_data(smp_processor_id()).udelay_val
#else /* SMP */
#define __udelay_val    loops_per_jiffy
#endif /* SMP */
#define udelay(__usecs) __udelay(__usecs, __udelay_val)
#define ndelay(__nsecs) __ndelay(__nsecs, __udelay_val)

#endif /* defined(__SPARC_DELAY_H) */