/* 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) */