cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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delay_32.h (907B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2/*
      3 * delay.h: Linux delay routines on the Sparc.
      4 *
      5 * Copyright (C) 1994 David S. Miller (davem@caip.rutgers.edu).
      6 */
      7
      8#ifndef __SPARC_DELAY_H
      9#define __SPARC_DELAY_H
     10
     11#include <asm/cpudata.h>
     12
     13static inline void __delay(unsigned long loops)
     14{
     15	__asm__ __volatile__("cmp %0, 0\n\t"
     16			     "1: bne 1b\n\t"
     17			     "subcc %0, 1, %0\n" :
     18			     "=&r" (loops) :
     19			     "0" (loops) :
     20			     "cc");
     21}
     22
     23/* This is too messy with inline asm on the Sparc. */
     24void __udelay(unsigned long usecs, unsigned long lpj);
     25void __ndelay(unsigned long nsecs, unsigned long lpj);
     26
     27#ifdef CONFIG_SMP
     28#define __udelay_val	cpu_data(smp_processor_id()).udelay_val
     29#else /* SMP */
     30#define __udelay_val	loops_per_jiffy
     31#endif /* SMP */
     32#define udelay(__usecs)	__udelay(__usecs, __udelay_val)
     33#define ndelay(__nsecs)	__ndelay(__nsecs, __udelay_val)
     34
     35#endif /* defined(__SPARC_DELAY_H) */