linux-kernel - Re: SNB PCI root information

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Message-ID: <CAE9FiQWB-=qRQfJS=95a+L_N32bZ97MCdW3voDCNSCbVcCnERQ@mail.gmail.com>
Date:	Fri, 22 Jun 2012 10:28:56 -0700
From:	Yinghai Lu <yinghai@...nel.org>
To:	Brice Goglin <brice.goglin@...il.com>
Cc:	Bjorn Helgaas <bhelgaas@...gle.com>,
	Ulrich Drepper <drepper@...il.com>, jbarnes@...tuousgeek.org,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	lenb@...nel.org, x86@...nel.org, linux-pci@...r.kernel.org
Subject: Re: SNB PCI root information

On Fri, Jun 22, 2012 at 12:14 AM, Brice Goglin <brice.goglin@...il.com> wrote:

>> BIOS _PXM return 0 for both pci root buses?
>>
>
> Here's dmesg.
> I can't say for sure whether _PXM returns 0 since I don't know how to
> read all this :) But Linux puts the first socket cpumap in
> /sys/bus/pci/devices/*/local_cpus (and that's wrong according to the
> motherboard manual and according to the performance we see).
>

hi, looks like you system bios does not provide _PXM for the root bus.

Thanks

Yinghai
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