From: Ben Dooks <ben-linux@fluff.org>
Date: Mon, 11 Feb 2013 11:25:06 +0000 (+0100)
Subject: ARM: 7649/1: mm: mm->context.id fix for big-endian
X-Git-Tag: v3.9-rc1~143^2^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9520a5bece13b7382f4b0059180f61530c423c81;p=pandora-kernel.git

ARM: 7649/1: mm: mm->context.id fix for big-endian

Since the new ASID code in b5466f8728527a05a493cc4abe9e6f034a1bbaab
("ARM: mm: remove IPI broadcasting on ASID rollover") was changed to
use 64bit operations it has broken the BE operation due to an issue
with the MM code accessing sub-fields of mm->context.id.

When running in BE mode we see the values in mm->context.id are stored
with the highest value first, so the LDR in the arch/arm/mm/proc-macros.S
reads the wrong part of this field. To resolve this, change the LDR in
the mmid macro to load from +4.

Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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