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powerpc: Fix sysfs pci mmap on 32-bit machines with 64-bit PCI
authorBenjamin Herrenschmidt <benh@kernel.crashing.org>
Wed, 1 Oct 2008 15:30:04 +0000 (15:30 +0000)
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>
Tue, 7 Oct 2008 03:26:21 +0000 (14:26 +1100)
commit7c12d906f4ef690c65e60111375856640f63a545
tree94316181a86959bc97fb2bd3b962c4a6c9289ef1tree | snapshot
parent76c31f239ea221a6c84bd26141262a43bfe8b7f4commit | diff
powerpc: Fix sysfs pci mmap on 32-bit machines with 64-bit PCI

When manipulating 64-bit PCI addresses, the code would lose the
top 32-bit in a couple of places when shifting a pfn due to missing
type casting from the 32-bit pfn to a 64-bit resource before the
shift.

This breaks using newer X servers for example on 440 machines
with the PCI bus above 32-bit.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
arch/powerpc/kernel/pci-common.c diff | blob | history
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