From: "Maciej W. Rozycki" <macro@linux-mips.org>
To: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Jinyang He <hejinyang@loongson.cn>,
linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] MIPS: KASLR: Fix sync_icache() trapped in loop when synci_step is zero
Date: Mon, 7 Dec 2020 15:35:23 +0000 (GMT) [thread overview]
Message-ID: <alpine.LFD.2.21.2012071526120.2104409@eddie.linux-mips.org> (raw)
In-Reply-To: <20201202103943.GA9065@alpha.franken.de>
On Wed, 2 Dec 2020, Thomas Bogendoerfer wrote:
> PS: Does anybody know a reason, why this code doesn't use an old fashioned
> dache/icache flushing, which might be slower but would work also on
> legecy cores ?
Hmm, this was contributed by ImgTec in 2016 only, so I guess there was no
reason as such but merely the lack of care about older systems (mind that
those people really didn't have any at that point). The option to enable
this code is only available for R2 and newer CPUs so at least we are safe.
Maciej
prev parent reply other threads:[~2020-12-07 15:36 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-02 3:00 [PATCH] MIPS: KASLR: Fix sync_icache() trapped in loop when synci_step is zero Jinyang He
2020-12-02 10:39 ` Thomas Bogendoerfer
2020-12-03 3:29 ` Jinyang He
2020-12-08 6:46 ` Maciej W. Rozycki
2020-12-03 4:02 ` Jiaxun Yang
2020-12-04 12:14 ` Thomas Bogendoerfer
2020-12-07 15:35 ` Maciej W. Rozycki [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=alpine.LFD.2.21.2012071526120.2104409@eddie.linux-mips.org \
--to=macro@linux-mips.org \
--cc=hejinyang@loongson.cn \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mips@vger.kernel.org \
--cc=tsbogend@alpha.franken.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).