From: Bjorn Helgaas <bjorn.helgaas@hp.com>
Date: Fri, 30 Mar 2007 16:34:44 +0000 (-0600)
Subject: [IA64] allow WB /sys/.../legacy_mem mmaps
X-Git-Tag: v2.6.22-rc1~817^2^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2cb22e23a5fcbcac2de49493aa57c7694028a06a;p=pandora-kernel.git

[IA64] allow WB /sys/.../legacy_mem mmaps

Allow cacheable mmaps of legacy_mem if WB access is supported for the region.
The "legacy_mem" file often contains a shadow option ROM, and some versions of
X depend on this.

Tim Yamin <plasm@roo.me.uk> reported that this change fixes X on a Dell
PowerEdge 3250.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
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