From: Linus Torvalds <torvalds@linux-foundation.org>
To: Jeff Garzik <jeff@garzik.org>
Cc: Arjan van de Ven <arjan@infradead.org>,
linux-kernel@vger.kernel.org, gregkh@suse.de,
linux-pci@atrey.karlin.mff.cuni.cz,
Benjamin Herrenschmidt <benh@kernel.crashing.org>
Subject: Re: [patch] Make MMCONFIG space (extended PCI config space) a driver opt-in issue
Date: Sat, 22 Dec 2007 20:35:53 -0800 (PST) [thread overview]
Message-ID: <alpine.LFD.0.9999.0712222034150.21557@woody.linux-foundation.org> (raw)
In-Reply-To: <476DDFEE.3010009@garzik.org>
On Sat, 22 Dec 2007, Jeff Garzik wrote:
> My core assertion: the present situation -- turning off MMCONFIG aggressively
> -- is greatly preferable to adding pci_enable_mmconfig_accesses(pdev).
Well, you do realize that right now we have to have _users_ just doing
"pci=nommconf" on the kernel command line, because we apparently don't do
it aggressively enough?
The fact is, we simply don't know what the breakage is. The only safe
situation is to just assume things are broken, and enable it only when
necessary.
And if there isn't a driver that needs it, then it sure as *hell* isn't
necessary.
Linus
next prev parent reply other threads:[~2007-12-23 4:36 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-12-22 12:31 Arjan van de Ven
2007-12-22 12:35 ` [patch] opt the sky2 driver into using extended config space Arjan van de Ven
2007-12-22 20:28 ` Stephen Hemminger
2007-12-22 14:20 ` [patch] Make MMCONFIG space (extended PCI config space) a driver opt-in issue Jeff Garzik
2007-12-22 14:47 ` Arjan van de Ven
2007-12-22 15:54 ` Matthew Wilcox
2007-12-22 16:02 ` Arjan van de Ven
2007-12-22 21:10 ` Matthew Wilcox
2007-12-23 23:33 ` Benjamin Herrenschmidt
2007-12-22 18:06 ` Linus Torvalds
2007-12-22 19:30 ` Martin Mares
2007-12-22 20:15 ` Arjan van de Ven
2007-12-22 20:36 ` Martin Mares
2007-12-23 1:29 ` Jeff Garzik
2007-12-23 1:26 ` Jeff Garzik
2007-12-23 3:46 ` Linus Torvalds
2007-12-23 4:11 ` Jeff Garzik
2007-12-23 4:35 ` Linus Torvalds [this message]
2007-12-23 4:52 ` Jeff Garzik
2007-12-23 5:00 ` Linus Torvalds
2007-12-23 5:09 ` Jeff Garzik
2007-12-23 21:09 ` Benjamin Herrenschmidt
2007-12-23 21:15 ` Martin Mares
2007-12-23 22:32 ` Ivan Kokshaysky
2007-12-23 23:06 ` Benjamin Herrenschmidt
2007-12-23 23:19 ` Benjamin Herrenschmidt
2007-12-23 5:27 ` Loic Prylli
2007-12-23 5:44 ` Jeff Garzik
2007-12-23 8:33 ` Loic Prylli
2007-12-23 11:03 ` Ivan Kokshaysky
2007-12-23 17:32 ` Linus Torvalds
2007-12-24 7:31 ` Jeff Garzik
2007-12-24 18:51 ` Linus Torvalds
2007-12-24 21:22 ` Matthew Wilcox
2007-12-27 11:46 ` Jeff Garzik
2007-12-27 14:09 ` Arjan van de Ven
2007-12-24 7:22 ` Jeff Garzik
2007-12-24 15:47 ` Ivan Kokshaysky
2007-12-23 21:13 ` Benjamin Herrenschmidt
2007-12-23 10:33 ` Arjan van de Ven
2007-12-24 7:04 ` Jeff Garzik
2007-12-24 11:49 ` Arjan van de Ven
2007-12-24 11:54 ` Jeff Garzik
2007-12-24 12:00 ` Arjan van de Ven
2007-12-25 9:22 ` Martin Mares
2007-12-25 9:40 ` Martin Mares
2007-12-23 4:13 ` Jeff Garzik
2007-12-23 4:18 ` Jeff Garzik
2007-12-23 4:44 ` Linus Torvalds
2007-12-23 5:04 ` Jeff Garzik
2007-12-23 5:18 ` Linus Torvalds
2007-12-23 5:22 ` Jeff Garzik
2007-12-23 4:40 ` Linus Torvalds
2007-12-23 10:18 ` Martin Mares
2007-12-23 5:09 ` Loic Prylli
2007-12-23 5:57 ` H. Peter Anvin
2007-12-23 1:34 ` Jeff Garzik
2007-12-22 20:43 ` Benjamin Herrenschmidt
[not found] <fa.pFsY/52FEkQYqrDPnPMxmcUOsRY@ifi.uio.no>
2007-12-22 16:22 ` Robert Hancock
2007-12-22 19:25 ` Greg KH
2007-12-23 0:56 ` Jeff Garzik
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