diff --git a/arch/powerpc/kernel/lparmap.c b/arch/powerpc/kernel/lparmap.c
index 8a53d43..92d9474 100644
--- a/arch/powerpc/kernel/lparmap.c
+++ b/arch/powerpc/kernel/lparmap.c
@@ -18,8 +18,8 @@
 	.xEsids = {
 		{ .xKernelEsid = GET_ESID(PAGE_OFFSET),
 		  .xKernelVsid = KERNEL_VSID(PAGE_OFFSET), },
-		{ .xKernelEsid = GET_ESID(VMALLOCBASE),
-		  .xKernelVsid = KERNEL_VSID(VMALLOCBASE), },
+		{ .xKernelEsid = GET_ESID(VMALLOC_START),
+		  .xKernelVsid = KERNEL_VSID(VMALLOC_START), },
 	},
 
 	.xRanges = {
diff --git a/arch/powerpc/mm/slb.c b/arch/powerpc/mm/slb.c
index cc22570..ffc8ed4 100644
--- a/arch/powerpc/mm/slb.c
+++ b/arch/powerpc/mm/slb.c
@@ -87,8 +87,8 @@
 		     /* Slot 2 - kernel stack */
 		     "slbmte	%2,%3\n"
 		     "isync"
-		     :: "r"(mk_vsid_data(VMALLOCBASE, vflags)),
-		        "r"(mk_esid_data(VMALLOCBASE, 1)),
+		     :: "r"(mk_vsid_data(VMALLOC_START, vflags)),
+		        "r"(mk_esid_data(VMALLOC_START, 1)),
 		        "r"(mk_vsid_data(ksp_esid_data, lflags)),
 		        "r"(ksp_esid_data)
 		     : "memory");
@@ -216,7 +216,7 @@
 	create_slbe(PAGE_OFFSET, lflags, 0);
 
 	/* VMALLOC space has 4K pages always for now */
-	create_slbe(VMALLOCBASE, vflags, 1);
+	create_slbe(VMALLOC_START, vflags, 1);
 
 	/* We don't bolt the stack for the time being - we're in boot,
 	 * so the stack is in the bolted segment.  By the time it goes
diff --git a/include/asm-powerpc/page_64.h b/include/asm-powerpc/page_64.h
index 6642c01..8a07a93 100644
--- a/include/asm-powerpc/page_64.h
+++ b/include/asm-powerpc/page_64.h
@@ -25,16 +25,6 @@
  */
 #define PAGE_FACTOR		(PAGE_SHIFT - HW_PAGE_SHIFT)
 
-#define REGION_SIZE   4UL
-#define REGION_SHIFT  60UL
-#define REGION_MASK   (((1UL<<REGION_SIZE)-1UL)<<REGION_SHIFT)
-
-#define VMALLOCBASE		ASM_CONST(0xD000000000000000)
-#define VMALLOC_REGION_ID	(VMALLOCBASE >> REGION_SHIFT)
-#define KERNEL_REGION_ID	(KERNELBASE >> REGION_SHIFT)
-#define USER_REGION_ID		(0UL)
-#define REGION_ID(ea)		(((unsigned long)(ea)) >> REGION_SHIFT)
-
 /* Segment size */
 #define SID_SHIFT		28
 #define SID_MASK		0xfffffffffUL
diff --git a/include/asm-powerpc/pgtable.h b/include/asm-powerpc/pgtable.h
index 0303f57..3518adb 100644
--- a/include/asm-powerpc/pgtable.h
+++ b/include/asm-powerpc/pgtable.h
@@ -58,6 +58,17 @@
 #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