From: catalin.marinas@arm.com (Catalin Marinas)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ARM: mm: Add workaround for erratum 763126
Date: Fri, 9 May 2014 15:44:39 +0100 [thread overview]
Message-ID: <20140509144439.GG7950@arm.com> (raw)
In-Reply-To: <CAFY15YHPSLMh6iA1PQHjsneL_Kxarc0xL5uJ7_px71cbmJbrgQ@mail.gmail.com>
On Fri, May 09, 2014 at 02:56:02PM +0100, arjun kv wrote:
> As Doug already mentioned, we have not observed an issue which could have been
> triggered by this erratum.
> Nor do we have a method to actually trigger the livelock.
> But if it improves the performance and has no real side effects, we could?at
> least?land this in our local tree?
It's up to you, but do some benchmarks first.
ACTLR bits that improve performance on specific SoCs should really be
set by the firmware before booting the kernel. There is no way for the
kernel to know what works best for your system, especially when we deal
with implementation-defined registers.
--
Catalin
next prev parent reply other threads:[~2014-05-09 14:44 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-08 5:55 [PATCH] ARM: mm: Add workaround for erratum 763126 Arjun.K.V
2014-05-08 16:57 ` Doug Anderson
2014-05-08 17:38 ` Will Deacon
2014-05-08 17:57 ` Doug Anderson
2014-05-08 18:05 ` Will Deacon
[not found] ` <CAFY15YHPSLMh6iA1PQHjsneL_Kxarc0xL5uJ7_px71cbmJbrgQ@mail.gmail.com>
2014-05-09 14:44 ` Catalin Marinas [this message]
2014-05-12 16:36 ` Doug Anderson
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=20140509144439.GG7950@arm.com \
--to=catalin.marinas@arm.com \
--cc=linux-arm-kernel@lists.infradead.org \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.