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[PATCH] - Increase max physical memory size of x86_64

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From: Jack Steiner <steiner@...>
To: <mingo@...>, <ak@...>, <tglx@...>
Cc: <linux-mm@...>, <linux-kernel@...>
Subject: [PATCH] - Increase max physical memory size of x86_64
Date: Friday, March 21, 2008 - 9:31 am

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 */
--
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Messages in current thread:
[PATCH] - Increase max physical memory size of x86_64, Jack Steiner, (Fri Mar 21, 9:31 am)
Re: [PATCH] - Increase max physical memory size of x86_64, Andreas Herrmann, (Tue Mar 25, 12:41 pm)
Re: [PATCH] - Increase max physical memory size of x86_64, Jack Steiner, (Tue Mar 25, 12:54 pm)
Re: [PATCH] - Increase max physical memory size of x86_64, Chris Snook, (Tue Mar 25, 5:02 pm)
Re: [PATCH] - Increase max physical memory size of x86_64, Andreas Herrmann, (Thu Mar 27, 1:30 pm)
Re: [PATCH] - Increase max physical memory size of x86_64, Jack Steiner, (Thu Mar 27, 1:55 pm)
Re: [PATCH] - Increase max physical memory size of x86_64, Ingo Molnar, (Fri Mar 21, 10:24 am)