From: Robin Holt <holt@sgi.com>
Date: Fri, 11 Nov 2005 15:35:43 +0000 (-0600)
Subject: [IA64] 4-level page tables
X-Git-Tag: v2.6.15-rc1~3^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=837cd0bdf54dd954cd6aa43d250f75ab5db79617;p=pandora-kernel.git

[IA64] 4-level page tables

This patch introduces 4-level page tables to ia64.  I have run
some benchmarks and found nothing interesting.  Performance has
consistently fallen within the noise range.

It also introduces a config option (setting the default to 3
levels).  The config option prevents having 4 level page
tables with 64k base page size.

Signed-off-by: Robin Holt <holt@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
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