1 files changed, 7 insertions, 0 deletions

diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c
index 1558f81ac1ff..59503ed98e5f 100644
--- a/arch/powerpc/kernel/dma.c
+++ b/arch/powerpc/kernel/dma.c
@@ -353,6 +353,13 @@ u64 dma_get_required_mask(struct device *dev)
         if (ppc_md.dma_get_required_mask)
                 return ppc_md.dma_get_required_mask(dev);
 
+        if (dev_is_pci(dev)) {
+                struct pci_dev *pdev = to_pci_dev(dev);
+                struct pci_controller *phb = pci_bus_to_host(pdev->bus);
+                if (phb->controller_ops.dma_get_required_mask)
+                        return phb->controller_ops.dma_get_required_mask(pdev);
+        }
+
         return __dma_get_required_mask(dev);
 }
 EXPORT_SYMBOL_GPL(dma_get_required_mask);