From: vichy.kuo@gmail.com (vichy)
To: linux-arm-kernel@lists.infradead.org
Subject: some question about Set bit 22 in the PL310 (cache controller) AuxCtlr register
Date: Sun, 8 Mar 2015 20:31:45 +0800 [thread overview]
Message-ID: <CAOVJa8Euj-VC-r0uQdyxqRtU7v23t3UW=wWTbrTCz_6gSp4x6g@mail.gmail.com> (raw)
hi all:
Recently we bumped into the same issue like below path:
http://lists.infradead.org/pipermail/linux-arm-kernel/2014-April/245908.html
http://lists.infradead.org/pipermail/linux-arm-kernel/2010-November/031810.html
We have some question about this patch:
a. Under what circumstances, there will be memory returned by
dma_alloc_coherent and friends mapped as normal, cacheable mappings?
b. why "with CMA enabled, it should be safe not to set this bit."
Sincerely appreciate your kind help,
next reply other threads:[~2015-03-08 12:31 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-08 12:31 vichy [this message]
2015-03-10 16:31 ` some question about Set bit 22 in the PL310 (cache controller) AuxCtlr register Catalin Marinas
2015-03-10 16:34 ` Russell King - ARM Linux
2015-03-10 17:40 ` Catalin Marinas
2015-03-10 17:48 ` Russell King - ARM Linux
2015-03-10 17:11 ` Krishna Reddy
2015-03-10 17:27 ` Russell King - ARM Linux
2015-03-11 14:35 ` vichy
2015-03-11 21:54 ` vichy
2015-03-13 14:11 ` Catalin Marinas
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='CAOVJa8Euj-VC-r0uQdyxqRtU7v23t3UW=wWTbrTCz_6gSp4x6g@mail.gmail.com' \
--to=vichy.kuo@gmail.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 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).