1 files changed, 15 insertions, 0 deletions

diff --git a/arch/ppc/kernel/pci.c b/arch/ppc/kernel/pci.c
index 70cfb6ffd877..7b3586a3bf30 100644
--- a/arch/ppc/kernel/pci.c
+++ b/arch/ppc/kernel/pci.c
@@ -160,6 +160,21 @@ void pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
 }
 EXPORT_SYMBOL(pcibios_resource_to_bus);
 
+void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
+                             struct pci_bus_region *region)
+{
+        unsigned long offset = 0;
+        struct pci_controller *hose = dev->sysdata;
+
+        if (hose && res->flags & IORESOURCE_IO)
+                offset = (unsigned long)hose->io_base_virt - isa_io_base;
+        else if (hose && res->flags & IORESOURCE_MEM)
+                offset = hose->pci_mem_offset;
+        res->start = region->start + offset;
+        res->end = region->end + offset;
+}
+EXPORT_SYMBOL(pcibios_bus_to_resource);
+
 /*
  * We need to avoid collisions with `mirrored' VGA ports
  * and other strange ISA hardware, so we always want the