linux-kernel - Re: [PATCH V10 08/22] LoongArch: Add other common headers

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Message-ID: <CAAhV-H5+ypB8T9AtCoi5M7GuhMzCbn89GHt4f5XxQ9S++vH5WA@mail.gmail.com>
Date:   Sun, 15 May 2022 19:42:15 +0800
From:   Huacai Chen <chenhuacai@...il.com>
To:     "Jason A. Donenfeld" <Jason@...c4.com>
Cc:     Huacai Chen <chenhuacai@...ngson.cn>,
        Arnd Bergmann <arnd@...db.de>,
        Andy Lutomirski <luto@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Peter Zijlstra <peterz@...radead.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        David Airlie <airlied@...ux.ie>,
        Jonathan Corbet <corbet@....net>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        linux-arch <linux-arch@...r.kernel.org>,
        "open list:DOCUMENTATION" <linux-doc@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Xuefeng Li <lixuefeng@...ngson.cn>,
        Yanteng Si <siyanteng@...ngson.cn>,
        Guo Ren <guoren@...nel.org>, Xuerui Wang <kernel@...0n.name>,
        Jiaxun Yang <jiaxun.yang@...goat.com>,
        Stephen Rothwell <sfr@...b.auug.org.au>
Subject: Re: [PATCH V10 08/22] LoongArch: Add other common headers

Hi, Jason,

On Sun, May 15, 2022 at 8:01 AM Jason A. Donenfeld <Jason@...c4.com> wrote:
>
> 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.
OK, thanks.

Huacai
>
> Jason