From f135b978c2dab3d439eacb8353d3c0aac6af072a Mon Sep 17 00:00:00 2001
From: Alexandre Courbot <acourbot@nvidia.com>
Date: Wed, 1 Jul 2015 17:32:29 +0900
Subject: [PATCH] drm/ttm: recognize ARM64 arch in ioprot handler

Return proper pgprot for ARM64. This is required for objects like
Nouveau fences to be mapped with expected coherency.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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