linux-kernel - Re: [PATCH] clocksource: riscv_timer: Provide sched

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Message-ID: <CAAhSdy2rw=4Uw8=MZtfHi_ML9ZBqeiJ2iv+tRmDnjQDh7yuUHg@mail.gmail.com>
Date:   Mon, 3 Dec 2018 20:20:47 +0530
From:   Anup Patel <anup@...infault.org>
To:     Daniel Lezcano <daniel.lezcano@...aro.org>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Palmer Dabbelt <palmer@...ive.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Atish Patra <atish.patra@....com>,
        Christoph Hellwig <hch@...radead.org>,
        linux-riscv@...ts.infradead.org,
        "linux-kernel@...r.kernel.org List" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] clocksource: riscv_timer: Provide sched_clock

On Mon, Dec 3, 2018 at 6:29 PM Daniel Lezcano <daniel.lezcano@...aro.org> wrote:
>
> On 03/12/2018 13:35, Anup Patel wrote:
> > Currently, we don't have a sched_clock registered for RISC-V systems.
> > This means Linux time keeping will use jiffies (running at HZ) as the
> > default sched_clock.
> >
> > To avoid this, we explicity provide sched_clock using RISC-V rdtime
> > instruction (similar to riscv_timer clocksource).
> >
> > Signed-off-by: Anup Patel <anup@...infault.org>
>
> Hi Anup,
>
> the GENERIC_SCHED_CLOCK dependency in the Kconfig is missing.

Sure, will do.

I also have another patch to select GENERIC_SCHED_CLOCK
for CONFIG_RISCV. Should I squash that patch with this patch??

Regards,
Anup