linux-kernel - Re: [PATCH 1/2] arm64: Add Cortex-X2 CPU part definition

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Message-ID: <CAK8P3a1t5N_vW3rcMD_e+UMy5EQDrTrE4QqPDo7nM_s1-Bf0XQ@mail.gmail.com>
Date:   Wed, 19 Jan 2022 08:44:54 +0100
From:   Arnd Bergmann <arnd@...db.de>
To:     Anshuman Khandual <anshuman.khandual@....com>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Mathieu Poirier <mathieu.poirier@...aro.org>,
        Suzuki Poulose <suzuki.poulose@....com>,
        coresight@...ts.linaro.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/2] arm64: Add Cortex-X2 CPU part definition

On Wed, Jan 19, 2022 at 7:44 AM Anshuman Khandual
<anshuman.khandual@....com> wrote:
> On 1/13/22 5:17 PM, Arnd Bergmann wrote:
> >
> > It also helps me personally to have a known place to look up the names
> > by value rather than chasing through reference manuals.
>
> IIUC the purpose here would be a quick CPU ID documentation reference check ?
> I will wait for other opinions here and add the remaining in a separate patch
> probably.

The purpose would be to do what is obviously the right thing, and to avoid
more patches getting sent the next time someone needs to add a workaround
for another core that is already known.

If you can't do this without more discussion, then just use your
current version and
let the next person do it.

        Arnd