powerpc/mm/book3s: Split radix and hash MAX_PHYSMEM limit

[linux-2.6-block.git] / arch / powerpc / include / asm / book3s / 64 / hash-4k.h

diff --git a/arch/powerpc/include/asm/book3s/64/hash-4k.h b/arch/powerpc/include/asm/book3s/64/hash-4k.h
index b3ca542f871ecdf190bc5e578aef15403b39eb35..b6ac4f86c87b44b619681a2c7909c4a3fa7f0f0b 100644 (file)
--- a/arch/powerpc/include/asm/book3s/64/hash-4k.h
+++ b/arch/powerpc/include/asm/book3s/64/hash-4k.h
@@ -22,6 +22,11 @@
 #define REGION_SHIFT           (40)
 #define H_KERN_MAP_SIZE                (ASM_CONST(1) << REGION_SHIFT)
 
+/*
+ * Limits the linear mapping range
+ */
+#define H_MAX_PHYSMEM_BITS     46
+
 /*
  * Define the address range of the kernel non-linear virtual area (61TB)
  */