linux-kernel - Re: [PATCH v2] x86/PCI: use host bridge

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Date:	Tue, 27 Sep 2011 11:39:32 +0200
From:	Paul Menzel <paulepanter@...rs.sourceforge.net>
To:	Bjorn Helgaas <bhelgaas@...gle.com>
Cc:	x86@...nel.org, linux-pci@...r.kernel.org, stable@...nel.org,
	linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	Jesse Barnes <jbarnes@...tuousgeek.org>
Subject: Re: [PATCH v2] x86/PCI: use host bridge _CRS info on ASUS M2V-MX SE

Am Dienstag, den 20.09.2011, 10:39 -0600 schrieb Bjorn Helgaas:
> On Tue, Sep 20, 2011 at 4:20 AM, Paul Menzel wrote:
> > ...
> >
> > Using coreboot [1] with this board the problem does not exist but this quirk also does not affect it either. To be safe though the check is tightened to only take effect when the BIOS from American Megatrends is used.
> >
> >        15:13 < ruik> but coreboot does not need that
> >        15:13 < ruik> because i have there only one root bus
> >        15:13 < ruik> the audio is behind a bridge
> 
> I'd like to know more about this coreboot situation.  Would it be
> possible to get a dmesg log from the system with coreboot?  I'd like
> to see how coreboot configures this device differently.

I had attached that to the Bugzilla report #30552 [2], but this is down
at the moment. I saw that you got the output from someone on #coreboot
though.

> > CC: stable@...nel.org (≥ 2.6.34)
> > CC: Bjorn Helgaas <bhelgaas@...gle.com>
> > CC: Thomas Gleixner <tglx@...utronix.de>
> > CC: Ingo Molnar <mingo@...hat.com>
> > CC: H. Peter Anvin <hpa@...or.com>
> > CC: x86@...nel.org
> > CC: Jesse Barnes <jbarnes@...tuousgeek.org>
> > Signed-off-by: Paul Menzel <paulepanter@...rs.sourceforge.net>
> 
> Signed-off-by: Bjorn Helgaas <bhelgaas@...gle.com>
> 
> This is fine with me.  I don't think it's the final solution, but I
> think it's worth doing for now.

Thank you. I could not see this in Linus’ tree [3] yet. Jesse, could you
pick that up as you have done for the other commit? (Where is your
(temporary) tree located?)


Thanks,

Paul


[2] https://bugzilla.kernel.org/show_bug.cgi?id=30552
[3] https://github.com/torvalds/linux.git

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