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authorYinghai Lu <yinghai@kernel.org>2015-01-16 01:21:50 +0300
committerBjorn Helgaas <bhelgaas@google.com>2015-01-16 19:04:43 +0300
commit4e348ba2dd1c1d6ea191566d7591655bbe9dde64 (patch)
tree806ae5f2f4e09f8225663b523a6ba6e607951bae /drivers/parisc
parent576e4385ff59f52ca0e9a6a953a55f1f76fc196b (diff)
downloadlinux-4e348ba2dd1c1d6ea191566d7591655bbe9dde64.tar.xz
mn10300/PCI: Clip bridge windows to fit in upstream windows
Every PCI-PCI bridge window should fit inside an upstream bridge window because orphaned address space is unreachable from the primary side of the upstream bridge. If we inherit invalid bridge windows that overlap an upstream window from firmware, clip them to fit and update the bridge accordingly. [bhelgaas: changelog] Link: https://bugzilla.kernel.org/show_bug.cgi?id=85491 Reported-by: Marek Kordik <kordikmarek@gmail.com> Fixes: 5b28541552ef ("PCI: Restrict 64-bit prefetchable bridge windows to 64-bit resources") Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: David Howells <dhowells@redhat.com> CC: Koichi Yasutake <yasutake.koichi@jp.panasonic.com> CC: linux-am33-list@redhat.com
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