1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c
index 95ae3a9aea8a..6fadbb9bc180 100644
--- a/drivers/pci/intel-iommu.c
+++ b/drivers/pci/intel-iommu.c
@@ -53,6 +53,9 @@
 
 #define DOMAIN_MAX_ADDR(gaw) ((((u64)1) << gaw) - 1)
 
+#define IOVA_PFN(addr)          ((addr) >> PAGE_SHIFT)
+#define DMA_32BIT_PFN           IOVA_PFN(DMA_32BIT_MASK)
+#define DMA_64BIT_PFN           IOVA_PFN(DMA_64BIT_MASK)
 
 static void flush_unmaps_timeout(unsigned long data);