From: Andi Kleen <andi@firstfloor.org>
To: Jerome Glisse <glisse@freedesktop.org>
Cc: hpa@zytor.com, suresh.b.siddha@intel.com,
venkatesh.pallipadi@intel.com, thellstrom@vmware.com,
airlied@linux.ie, currojerez@riseup.net,
linux-kernel@vger.kernel.org
Subject: Re: Uncool feature for TTM introduced by x86, pat: Use page flags to track memtypes of RAM pages
Date: Thu, 18 Feb 2010 18:27:39 +0100 [thread overview]
Message-ID: <87aav65u9g.fsf@basil.nowhere.org> (raw)
In-Reply-To: <20100218153032.GA4506@localhost.localdomain> (Jerome Glisse's message of "Thu, 18 Feb 2010 16:30:32 +0100")
Jerome Glisse <glisse@freedesktop.org> writes:
>
> Can we modify the interface to support again changing from uc to wc
> or wc to uc ? (i can try to do a patch for that).
At least on Intel CPUs that support self-snoop (all modern
ones) that should really be very cheap.
-Andi
--
ak@linux.intel.com -- Speaking for myself only.
next prev parent reply other threads:[~2010-02-18 17:27 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-18 15:30 Uncool feature for TTM introduced by x86, pat: Use page flags to track memtypes of RAM pages Jerome Glisse
2010-02-18 16:35 ` Jerome Glisse
2010-02-18 18:46 ` Suresh Siddha
2010-02-18 17:27 ` Andi Kleen [this message]
2010-02-18 17:38 ` H. Peter Anvin
2010-02-18 20:27 ` Andi Kleen
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=87aav65u9g.fsf@basil.nowhere.org \
--to=andi@firstfloor.org \
--cc=airlied@linux.ie \
--cc=currojerez@riseup.net \
--cc=glisse@freedesktop.org \
--cc=hpa@zytor.com \
--cc=linux-kernel@vger.kernel.org \
--cc=suresh.b.siddha@intel.com \
--cc=thellstrom@vmware.com \
--cc=venkatesh.pallipadi@intel.com \
/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