From: "Bryan O'Sullivan" <bos@serpentine.com>
To: Bill Waddington <william.waddington@beezmo.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Flushing writes to PCI devices
Date: Thu, 21 Sep 2006 11:14:02 -0700 [thread overview]
Message-ID: <1158862442.29551.22.camel@sardonyx> (raw)
In-Reply-To: <6263h29e4o17ok032m8rv11p4u6547ngk0@4ax.com>
On Wed, 2006-09-20 at 12:41 -0700, Bill Waddington wrote:
> Are there ever any issues with out-of-order writes from the posting
> buffer on supported architectures?
Yes. If your device requires that writes to some locations in MMIO
space be performed in a specific order, you must explicitly do this in
your driver. Intel CPUs will flush posted writes out of order, for
example.
<b
next prev parent reply other threads:[~2006-09-21 18:11 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <fa.gbsNbubc34pqWPOxWCntrwUyt68@ifi.uio.no>
2006-09-20 18:28 ` Alan Stern
2006-09-20 19:10 ` linux-os (Dick Johnson)
[not found] ` <fa.V4O8HKrhUddxYm5+ixVbyZzPybE@ifi.uio.no>
2006-09-20 19:41 ` Bill Waddington
2006-09-20 20:17 ` linux-os (Dick Johnson)
2006-09-21 18:14 ` Bryan O'Sullivan [this message]
2006-09-21 18:45 ` Alan Cox
2006-09-21 20:56 ` Roland Dreier
2006-09-21 21:04 ` Bryan O'Sullivan
2006-09-20 22:39 ` Alan Cox
2006-09-20 23:22 ` Robert Hancock
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=1158862442.29551.22.camel@sardonyx \
--to=bos@serpentine.com \
--cc=linux-kernel@vger.kernel.org \
--cc=william.waddington@beezmo.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
all inboxes | Powered by JetHome®