1 files changed, 19 insertions, 0 deletions

diff --git a/include/asm-x86_64/pci.h b/include/asm-x86_64/pci.h
index bda94fd5176f..88926eb44f5c 100644
--- a/include/asm-x86_64/pci.h
+++ b/include/asm-x86_64/pci.h
@@ -5,6 +5,25 @@
 
 #ifdef __KERNEL__
 
+struct pci_sysdata {
+        int             node;           /* NUMA node */
+        void*           iommu;          /* IOMMU private data */
+};
+
+#ifdef CONFIG_CALGARY_IOMMU
+static inline void* pci_iommu(struct pci_bus *bus)
+{
+        struct pci_sysdata *sd = bus->sysdata;
+        return sd->iommu;
+}
+
+static inline void set_pci_iommu(struct pci_bus *bus, void *val)
+{
+        struct pci_sysdata *sd = bus->sysdata;
+        sd->iommu = val;
+}
+#endif /* CONFIG_CALGARY_IOMMU */
+
 #include <linux/mm.h> /* for struct page */
 
 /* Can be used to override the logic in pci_scan_bus for skipping