From: Chuck Ebbert <cebbert@redhat.com>
To: Robert Hancock <hancockr@shaw.ca>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
Richard Henderson <rth@twiddle.net>,
linux-kernel <linux-kernel@vger.kernel.org>,
Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
Daniel Ritz <daniel.ritz@gmx.ch>, Greg KH <greg@kroah.com>,
Keith Packard <keithp@keithp.com>,
Bjorn Helgaas <bjorn.helgaas@hp.com>
Subject: Re: PCI resource problems caused by improper address rounding
Date: Tue, 18 Dec 2007 19:55:37 -0500 [thread overview]
Message-ID: <47686C09.1070602@redhat.com> (raw)
In-Reply-To: <47686197.6080807@shaw.ca>
On 12/18/2007 07:11 PM, Robert Hancock wrote:
>> However, I wonder about that
>>
>> e0000000-efffffff : pnp 00:0b
>>
>> thing. I actually suspect that that whole allocation is literally
>> *meant* for that 256MB graphics aperture, but the kernel explicitly
>> avoids it because it's listed in the PnP tables.
>
> That is probably the MMCONFIG aperture, in that case any attempt to map
> the graphics BAR there will have disastrous results. (This BIOS has an
> MCFG table, though it looks like this Fedora kernel has MMCONFIG
> disabled, so we can't tell what it actually contains.)
>
You can boot with "pci=mmconf" to enable it.
next prev parent reply other threads:[~2007-12-19 0:57 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <fa.WmGIH8th8MfmciABVSBi6whxeFE@ifi.uio.no>
[not found] ` <fa.Obg5E3fyax+MaF94//uo40q/Zyk@ifi.uio.no>
[not found] ` <fa./6K5nXEIpws4VU8HtJhQjF4AoGg@ifi.uio.no>
[not found] ` <fa.V82IIxMkW3eu+9B44NfoyYYQDP4@ifi.uio.no>
[not found] ` <fa.DM9AyNQQtam66XpKVeXeqS639os@ifi.uio.no>
[not found] ` <fa.f5O3U527Rv8DNk05hDFRjdCaeFE@ifi.uio.no>
2007-12-19 0:11 ` PCI resource problems caused by improper address rounding Robert Hancock
2007-12-19 0:55 ` Chuck Ebbert [this message]
2007-12-19 1:12 ` Richard Henderson
2007-12-19 3:12 ` Linus Torvalds
[not found] ` <fa.PJGSMm4TIW6lRYng/jDqooIvj8U@ifi.uio.no>
[not found] ` <fa.0UHHdYi5zqyJ2xOPhNk/BhJkxYM@ifi.uio.no>
2007-12-19 0:18 ` Robert Hancock
2007-12-19 0:38 ` Robert Hancock
2007-12-18 0:25 Chuck Ebbert
2007-12-18 0:57 ` Linus Torvalds
2007-12-18 17:34 ` Chuck Ebbert
2007-12-18 18:21 ` Linus Torvalds
2007-12-18 20:22 ` Richard Henderson
2007-12-18 21:09 ` Linus Torvalds
2007-12-18 21:46 ` Chuck Ebbert
2007-12-18 21:56 ` Linus Torvalds
2007-12-18 22:17 ` Richard Henderson
2007-12-18 21:51 ` Richard Henderson
2007-12-18 22:31 ` Linus Torvalds
2007-12-19 1:38 ` Linus Torvalds
2007-12-20 21:52 ` Richard Henderson
2007-12-20 22:24 ` Linus Torvalds
2007-12-21 0:39 ` Richard Henderson
2007-12-21 1:00 ` Linus Torvalds
2007-12-21 2:28 ` Benjamin Herrenschmidt
2007-12-18 22:16 ` Keith Packard
2007-12-19 0:29 ` Bjorn Helgaas
2007-12-18 21:23 ` Ivan Kokshaysky
2007-12-18 21:46 ` Linus Torvalds
2007-12-20 8:46 ` Ivan Kokshaysky
2007-12-20 21:21 ` Benjamin Herrenschmidt
2007-12-22 9:12 ` Andrew Morton
2007-12-22 9:20 ` Andrew Morton
2007-12-20 21:10 ` Benjamin Herrenschmidt
2007-12-22 9:22 ` Andrew Morton
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