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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2008-07-31 15:24:13 +1000
committerPaul Mackerras <paulus@samba.org>2008-08-11 10:09:56 +1000
commit8db13a0e1e87ae2741ca1677caa90e9592c4cc43 (patch)
treeeefe3cd37ea1dc33d0878ecb9cb2f5f4dfc04105 /Documentation/IRQ.txt
parentb79998fc2e1144919b6b02acbd407a5db1f80ac0 (diff)
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powerpc/pci: Don't keep ISA memory hole resources in the tree
When we have an ISA memory hole (ie, a PCI window that allows us to generate PCI memory cycles at low PCI address) mixed with other resources using a different CPU <=> PCI mapping, we must not keep the ISA hole in the bridge resource list. If we do, things might start trying to allocate device resources in there and will get the PCI addresses wrong. This fixes it by arranging to remove the ISA memory hole resource in this case. This fixes various cases of PCMCIA breakage on PowerBooks using the MPC106 "grackle" bridge. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
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