From: Kumar Gala <galak@kernel.crashing.org>
Date: Tue, 15 Feb 2011 04:45:48 +0000 (-0600)
Subject: powerpc/85xx: Fix writing to spin table 'cpu-release-addr' on ppc64e
X-Git-Tag: v2.6.39-rc1~430^2~15
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=decbb280bb8e3bceebcf5defb4f61dfbfdb23e18;p=pandora-kernel.git

powerpc/85xx: Fix writing to spin table 'cpu-release-addr' on ppc64e

If the spin table is located in the linear mapping (which can happen if
we have 4G or more of memory) we need to access the spin table via a
cacheable coherent mapping like we do on ppc32 (and do explicit cache
flush).

See the following commit for the ppc32 version of this issue:

commit d1d47ec6e62ab08d2ebb925fd9203abfad3adfbf
Author: Peter Tyser <ptyser@xes-inc.com>
Date:   Fri Dec 18 16:50:37 2009 -0600

    powerpc/85xx: Fix SMP when "cpu-release-addr" is in lowmem

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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