On Sat, May 14, 2022 at 04:03:48PM +0800, Huacai Chen wrote: > diff --git a/arch/loongarch/include/asm/timex.h b/arch/loongarch/include/asm/timex.h > new file mode 100644 > index 000000000000..3f8db082f00d > --- /dev/null > +++ b/arch/loongarch/include/asm/timex.h > @@ -0,0 +1,31 @@ > +/* 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> > + > +/* > + * Standard way to access the cycle counter. > + * Currently only used on SMP for scheduling. > + * > + * We know that all SMP capable CPUs have cycle counters. > + */ > + > +typedef unsigned long cycles_t; > + > +static inline cycles_t get_cycles(void) > +{ > + return drdtime(); > +} Please add: #define get_cycles get_cycles which is what other archs are getting for 5.19. Jason