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.h (481B)


      1/* SPDX-License-Identifier: GPL-2.0 */
      2/*
      3 * ARM simple delay routines
      4 */
      5
      6#ifndef SELFTEST_KVM_ARM_DELAY_H
      7#define SELFTEST_KVM_ARM_DELAY_H
      8
      9#include "arch_timer.h"
     10
     11static inline void __delay(uint64_t cycles)
     12{
     13	enum arch_timer timer = VIRTUAL;
     14	uint64_t start = timer_get_cntct(timer);
     15
     16	while ((timer_get_cntct(timer) - start) < cycles)
     17		cpu_relax();
     18}
     19
     20static inline void udelay(unsigned long usec)
     21{
     22	__delay(usec_to_cycles(usec));
     23}
     24
     25#endif /* SELFTEST_KVM_ARM_DELAY_H */