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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2020-2022 Loongson Technology Corporation Limited
*/
#ifndef _ASM_TIMEX_H
#define _ASM_TIMEX_H
#ifdef __KERNEL__
#include <linux/compiler.h>
#include <asm/cpu.h>
#include <asm/cpu-features.h>
typedef unsigned long cycles_t;
#define get_cycles get_cycles
static inline cycles_t get_cycles(void)
{
#ifdef CONFIG_32BIT
return rdtime_l();
#else
return rdtime_d();
#endif
}
#ifdef CONFIG_32BIT
#define get_cycles_hi get_cycles_hi
static inline cycles_t get_cycles_hi(void)
{
return rdtime_h();
}
#endif
static inline u64 get_cycles64(void)
{
#ifdef CONFIG_32BIT
u32 hi, lo;
do {
hi = rdtime_h();
lo = rdtime_l();
} while (hi != rdtime_h());
return ((u64)hi << 32) | lo;
#else
return rdtime_d();
#endif
}
#endif /* __KERNEL__ */
#endif /* _ASM_TIMEX_H */