From: Murillo Fernandes Bernardes <bernarde@br.ibm.com>
Date: Fri, 10 Aug 2007 20:31:00 +0000 (+0200)
Subject: x86_64: Calgary - Fix mis-handled PCI topology
X-Git-Tag: v2.6.23-rc3~24
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f055a0619aae795832ef6a783021184925758b67;p=pandora-kernel.git

x86_64: Calgary - Fix mis-handled PCI topology

Current code assumed that devices were directly connected to a Calgary
bridge, as it tried to get the iommu table directly from the parent bus
controller.

When we have another bridge between the Calgary/CalIOC2 bridge and the
device we should look upwards until we get to the top (Calgary/CalIOC2
bridge), where the iommu table resides.

Signed-off-by: Murillo Fernandes Bernardes <mfb@br.ibm.com>
Signed-off-by: Muli Ben-Yehuda <muli@il.ibm.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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