linux-kernel - Re: [PATCH v2] ARM: errata: Workaround errata A12 857271 / A17 857272

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Date:   Fri, 26 Apr 2019 15:37:23 -0700
From:   Doug Anderson <dianders@...omium.org>
To:     Russell King <linux@...linux.org.uk>
Cc:     Mark Rutland <mark.rutland@....com>,
        Jose Salvador Climent Bayarri <Salva.Climent@....com>,
        Marc Gonzalez <marc.w.gonzalez@...e.fr>,
        "open list:ARM/Rockchip SoC..." <linux-rockchip@...ts.infradead.org>,
        Sonny Rao <sonnyrao@...omium.org>,
        Will Deacon <will.deacon@....com>,
        Bobby Batacharia <bbatacha@....com>,
        Matthias Kaehlcke <mka@...omium.org>,
        Robin Murphy <robin.murphy@....com>,
        Heiko Stübner <heiko@...ech.de>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        Arnd Bergmann <arnd@...db.de>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Paul Burton <paul.burton@...s.com>,
        Palmer Dabbelt <palmer@...ive.com>,
        Marc Zyngier <marc.zyngier@....com>,
        Ard Biesheuvel <ard.biesheuvel@...aro.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Tony Lindgren <tony@...mide.com>
Subject: Re: [PATCH v2] ARM: errata: Workaround errata A12 857271 / A17 857272

Hi,

On Tue, Apr 23, 2019 at 4:00 PM Douglas Anderson <dianders@...omium.org> wrote:
>
> This adds support for working around errata A12 857271 / A17 857272.
> These errata were causing hangs on rk3288-based Chromebooks and it was
> confirmed that this workaround fixed the problems.  In the Chrome OS
> 3.14 kernel this was treated as two errata: ERRATA_FOOBAR [1] and
> ERRATA_CR711784 [2].  Apparently the two errata got lumped together at
> some point in time.
>
> Let's actually get the workaround landed.
>
> [1] https://crrev.com/c/342753
> [2] https://crbug.com/711784
>
> Signed-off-by: Douglas Anderson <dianders@...omium.org>
> Signed-off-by: Sonny Rao <sonnyrao@...omium.org>
> ---
>
> Changes in v2:
> - Squashed bits 10 and 11 into one errata.
>
>  arch/arm/Kconfig      | 18 ++++++++++++++++++
>  arch/arm/mm/proc-v7.S | 10 ++++++++++
>  2 files changed, 28 insertions(+)

Breadcrumbs: this has been submitted to RMK's patch tracking system.  See:

https://www.armlinux.org.uk/developer/patches/viewpatch.php?id=8861/1

-Doug