From: Shawn Guo <shawnguo@kernel.org>
To: Anson Huang <Anson.Huang@nxp.com>
Cc: gregkh@linuxfoundation.org, s.hauer@pengutronix.de,
linux@armlinux.org.uk, linux-kernel@vger.kernel.org,
Linux-imx@nxp.com, kernel@pengutronix.de, tglx@linutronix.de,
festevam@gmail.com, linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH V2] ARM: imx: Enable ARM_ERRATA_814220 for i.MX6UL and i.MX7D
Date: Wed, 11 Dec 2019 11:40:25 +0800 [thread overview]
Message-ID: <20191211034024.GI15858@dragon> (raw)
In-Reply-To: <1576032816-23373-1-git-send-email-Anson.Huang@nxp.com>
On Wed, Dec 11, 2019 at 10:53:36AM +0800, Anson Huang wrote:
> ARM_ERRATA_814220 has below description:
>
> The v7 ARM states that all cache and branch predictor maintenance
> operations that do not specify an address execute, relative to
> each other, in program order.
> However, because of this erratum, an L2 set/way cache maintenance
> operation can overtake an L1 set/way cache maintenance operation.
> This ERRATA only affected the Cortex-A7 and present in r0p2, r0p3,
> r0p4, r0p5.
>
> i.MX6UL and i.MX7D have Cortex-A7 r0p5 inside, need to enable
> ARM_ERRATA_814220 for proper workaround.
>
> Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Applied, thanks.
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
prev parent reply other threads:[~2019-12-11 3:40 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-11 2:53 [PATCH V2] ARM: imx: Enable ARM_ERRATA_814220 for i.MX6UL and i.MX7D Anson Huang
2019-12-11 3:40 ` Shawn Guo [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20191211034024.GI15858@dragon \
--to=shawnguo@kernel.org \
--cc=Anson.Huang@nxp.com \
--cc=Linux-imx@nxp.com \
--cc=festevam@gmail.com \
--cc=gregkh@linuxfoundation.org \
--cc=kernel@pengutronix.de \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux@armlinux.org.uk \
--cc=s.hauer@pengutronix.de \
--cc=tglx@linutronix.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).