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authorBjorn Helgaas <bhelgaas@google.com>2012-03-16 17:48:09 -0600
committerJesse Barnes <jbarnes@virtuousgeek.org>2012-03-20 10:41:44 -0700
commit38973ba7903fa0660a31b2bdc50ff711ec8d08c9 (patch)
tree3035998567d13979639f24d99a5dd185d1679123 /arch/powerpc/kernel/pci_32.c
parentd85c6d97d3d2601332f8250f06738cdeb4da71d2 (diff)
downloadblackbird-op-linux-38973ba7903fa0660a31b2bdc50ff711ec8d08c9.tar.gz
blackbird-op-linux-38973ba7903fa0660a31b2bdc50ff711ec8d08c9.zip
powerpc/PCI: compute I/O space bus-to-resource offset consistently
Make sure we compute CPU addresses (resource start/end) the same way both when we set up the I/O aperture (hose->io_resource) and when we use pcibios_bus_to_resource() to convert BAR values into resources. This fixes a build failure ("cast from pointer to integer of different size" in configs where resource_size_t is 64 bits but pointers are 32 bits) I introduced in 6c5705fec63d. Acked-By: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'arch/powerpc/kernel/pci_32.c')
-rw-r--r--arch/powerpc/kernel/pci_32.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/powerpc/kernel/pci_32.c b/arch/powerpc/kernel/pci_32.c
index fdd1a3d951dc..4b06ec5a502e 100644
--- a/arch/powerpc/kernel/pci_32.c
+++ b/arch/powerpc/kernel/pci_32.c
@@ -219,9 +219,9 @@ void __devinit pcibios_setup_phb_io_space(struct pci_controller *hose)
struct resource *res = &hose->io_resource;
/* Fixup IO space offset */
- io_offset = (unsigned long)hose->io_base_virt - isa_io_base;
- res->start = (res->start + io_offset) & 0xffffffffu;
- res->end = (res->end + io_offset) & 0xffffffffu;
+ io_offset = pcibios_io_space_offset(hose);
+ res->start += io_offset;
+ res->end += io_offset;
}
static int __init pcibios_init(void)
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