From: Will Deacon <will.deacon@arm.com>
Date: Thu, 13 Mar 2014 11:46:57 +0000 (+0000)
Subject: iommu/arm-smmu: allow 42-bit stage-1 output size with 64K pages
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~91^2~8^2^2^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c44308413b92a555d1501a6c0db9489e288bb81b;p=pandora-kernel.git

iommu/arm-smmu: allow 42-bit stage-1 output size with 64K pages

The output size of stage-1 is currently limited by the input size of
stage-2, which is further limited by VA_BITS since we make use of the
standard pgd_alloc functions for creating page tables.

This patch ensures that we use VA_BITS instead of a hardcoded '39'
for the stage-1 output size limit.

Signed-off-by: Will Deacon <will.deacon@arm.com>
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