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-rw-r--r--include/asm-powerpc/pgtable-ppc64.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/asm-powerpc/pgtable-ppc64.h b/include/asm-powerpc/pgtable-ppc64.h
index 300f9a199bf2..dd4c26dc57d2 100644
--- a/include/asm-powerpc/pgtable-ppc64.h
+++ b/include/asm-powerpc/pgtable-ppc64.h
@@ -68,6 +68,14 @@
#define USER_REGION_ID (0UL)
/*
+ * Defines the address of the vmemap area, in the top 16th of the
+ * kernel region.
+ */
+#define VMEMMAP_BASE (ASM_CONST(CONFIG_KERNEL_START) + \
+ (0xfUL << (REGION_SHIFT - 4)))
+#define vmemmap ((struct page *)VMEMMAP_BASE)
+
+/*
* 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