1 files changed, 11 insertions, 0 deletions

diff --git a/include/asm-powerpc/pgtable.h b/include/asm-powerpc/pgtable.h
index 0303f57366c..3518adb2cc1 100644
--- a/include/asm-powerpc/pgtable.h
+++ b/include/asm-powerpc/pgtable.h
@@ -58,6 +58,17 @@ struct mm_struct;
 #define IMALLOC_END     (VMALLOC_START + PGTABLE_RANGE)
 
 /*
+ * Region IDs
+ */
+#define REGION_SHIFT            60UL
+#define REGION_MASK             (0xfUL << REGION_SHIFT)
+#define REGION_ID(ea)           (((unsigned long)(ea)) >> REGION_SHIFT)
+
+#define VMALLOC_REGION_ID       (REGION_ID(VMALLOC_START))
+#define KERNEL_REGION_ID        (REGION_ID(PAGE_OFFSET))
+#define USER_REGION_ID          (0UL)
+
+/*
  * Common bits in a linux-style PTE.  These match the bits in the
  * (hardware-defined) PowerPC PTE as closely as possible. Additional
  * bits may be defined in pgtable-*.h