From: Matthew Wilcox <matthew@wil.cx>
To: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Robert Hancock <hancockr@shaw.ca>, Greg KH <gregkh@suse.de>,
Shaohua Li <shaohua.li@intel.com>,
lkml <linux-kernel@vger.kernel.org>,
linux-pci <linux-pci@atrey.karlin.mff.cuni.cz>,
Andrew Morton <akpm@linux-foundation.org>,
Jesse Barnes <jbarnes@virtuousgeek.org>
Subject: Re: [PATCH]PCI:disable resource decode in PCI BAR detection
Date: Sun, 16 Sep 2007 13:52:59 -0600 [thread overview]
Message-ID: <20070916195258.GC28350@parisc-linux.org> (raw)
In-Reply-To: <20070916151355.A18508@jurassic.park.msu.ru>
On Sun, Sep 16, 2007 at 03:13:55PM +0400, Ivan Kokshaysky wrote:
> Another possible solution is not to use mmconfig for bar sizing at all,
> if it's *that* broken. It would be more complicated though, since it
> probably requires changes to all architectures.
I don't think it would be that complicated. We could just delay probing
for mmconfig until after the pci bus probes are done. No changes to
other architectures needed.
I'm really disappointed with mmconfig. Here was a great chance to get
rid of all the sucky performance problems of the past, and BIOS writers
and chipset designers have fucked up the implementation so much that
it's now the ugliest method for getting to pci config space. And it's
the *only* method of getting to extended config space.
--
Intel are signing my paycheques ... these opinions are still mine
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours. We can't possibly take such
a retrograde step."
next prev parent reply other threads:[~2007-09-16 19:53 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <fa.ggBqx6W3i6hfs6jdfg64oXKSxW8@ifi.uio.no>
[not found] ` <fa.o5cJ0O7pLVWRzUiVPDEZL6nKqA8@ifi.uio.no>
[not found] ` <fa.tyYt4GOpTOmJTUbzsxpiCAObJPQ@ifi.uio.no>
[not found] ` <fa.13eJumylqINOxOaoEj9cthw0d0M@ifi.uio.no>
[not found] ` <fa.tAIuIM02CoL+ixB11n9Fmcqyz9M@ifi.uio.no>
[not found] ` <fa.pxFYhTaUz2NVN7Vux7b5xVRrKTw@ifi.uio.no>
2007-09-14 3:32 ` [PATCH]PCI:disable resource decode in PCI BAR detection Robert Hancock
2007-09-14 11:14 ` Ivan Kokshaysky
2007-09-14 11:33 ` Ivan Kokshaysky
2007-09-14 14:30 ` Robert Hancock
2007-09-14 15:29 ` Ivan Kokshaysky
2007-09-14 23:53 ` Robert Hancock
2007-09-15 5:55 ` Yinghai Lu
2007-09-16 11:13 ` Ivan Kokshaysky
2007-09-16 17:34 ` Robert Hancock
2007-09-17 9:20 ` Ivan Kokshaysky
2007-09-16 19:52 ` Matthew Wilcox [this message]
2007-09-17 9:31 ` Ivan Kokshaysky
2007-09-17 14:30 ` Robert Hancock
2007-09-17 1:21 ` Shaohua Li
2007-09-18 9:53 ` Ivan Kokshaysky
2007-09-19 21:34 ` Jesse Barnes
2007-09-16 20:06 ` Benjamin Herrenschmidt
2007-09-16 23:37 ` Robert Hancock
2007-09-17 0:21 ` Benjamin Herrenschmidt
[not found] ` <fa.0Edi0qLTdvqVnuoDAebaTVz1jEM@ifi.uio.no>
[not found] ` <fa.sq+NimBnzGB2syLmvcIGOvDkixI@ifi.uio.no>
[not found] ` <fa.G9DPndNUxuPi5LrUTOL4uPFshnc@ifi.uio.no>
2007-09-26 23:01 ` Robert Hancock
2007-09-27 0:40 ` Benjamin Herrenschmidt
2007-09-27 2:14 ` Matthew Wilcox
[not found] <fa.+WRenB38novq157RnGPLoU4q2XI@ifi.uio.no>
[not found] ` <fa.mM7Va6Nlsaduo/AF4MkeurSBTbs@ifi.uio.no>
[not found] ` <fa.Ff0IMhMYWp7NYEdjO0AftHzVOh4@ifi.uio.no>
[not found] ` <fa.d9zBdhHd9gKcJbtwrYguusbECo4@ifi.uio.no>
[not found] ` <fa.TLO57rS9iV7zhomQxJbV9gjbxx8@ifi.uio.no>
[not found] ` <fa.lPg6OSzX+f6jdXK1ZF0rlIhZok4@ifi.uio.no>
2007-09-15 20:24 ` Robert Hancock
2007-09-13 6:21 Shaohua Li
2007-09-13 7:31 ` Matthew Wilcox
2007-09-13 7:24 ` Shaohua Li
2007-09-13 7:55 ` Matthew Wilcox
2007-09-13 9:53 ` Greg KH
2007-09-13 11:16 ` Ivan Kokshaysky
2007-09-13 12:00 ` Greg KH
2007-09-16 20:01 ` Benjamin Herrenschmidt
2007-09-17 10:22 ` Ivan Kokshaysky
2007-09-17 20:30 ` Benjamin Herrenschmidt
2007-09-18 9:54 ` Ivan Kokshaysky
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=20070916195258.GC28350@parisc-linux.org \
--to=matthew@wil.cx \
--cc=akpm@linux-foundation.org \
--cc=gregkh@suse.de \
--cc=hancockr@shaw.ca \
--cc=ink@jurassic.park.msu.ru \
--cc=jbarnes@virtuousgeek.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-pci@atrey.karlin.mff.cuni.cz \
--cc=shaohua.li@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;
as well as URLs for NNTP newsgroup(s).