tree ce6a8a51aadd84364025b0a2c7bb649c0ac15f7c
parent a0d22f485af1553060b4094ee0154537a8f6a8a6
author Suresh Siddha <suresh.b.siddha@intel.com> 1239312407 -0700
committer Ingo Molnar <mingo@elte.hu> 1239364546 +0200

x86, CPA: Change idmap attribute before ioremap attribute setup

Change the identity mapping with the requested attribute first, before
we setup the virtual memory mapping with the new requested attribute.

This makes sure that there is no window when identity map'ed attribute
may disagree with ioremap range on the attribute type.

This also avoids doing cpa on the ioremap'ed address twice (first in
ioremap_page_range and then in ioremap_change_attr using vaddr), and
should improve ioremap performance a bit.

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
LKML-Reference: <20090409212708.373330000@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>