[PATCH] - Increase max physical memory size of x86_64

Jack Steiner
2008-03-21T13:32:17Z

Increase the maximum physical address size of x86_64 system
to 44-bits. This is in preparation for future chips that
support larger physical memory sizes.

Signed-off-by: Jack Steiner <steiner@sgi.com>

---
include/asm-x86/sparsemem.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

Index: linux/include/asm-x86/sparsemem.h
===================================================================
--- linux.orig/include/asm-x86/sparsemem.h 2008-03-10 00:22:27.000000000 -0500
+++ linux/include/asm-x86/sparsemem.h 2008-03-11 14:46:29.000000000 -0500
@@ -26,8 +26,8 @@
# endif
#else /* CONFIG_X86_32 */
# define SECTION_SIZE_BITS 27 /* matt - 128 is convenient right now */
-# define MAX_PHYSADDR_BITS 40
-# define MAX_PHYSMEM_BITS 40
+# define MAX_PHYSADDR_BITS 44
+# define MAX_PHYSMEM_BITS 44
#endif

#endif /* CONFIG_SPARSEMEM */