tree d6d170f2bdc1d0fa3f6f8f539effadb837423241
parent 3c1dae0a07c651526f8e878d223a88f82caa5a50
author Thierry Reding <treding@nvidia.com> 1421680504 +0100
committer Thierry Reding <treding@nvidia.com> 1434119030 +0200

drm/tegra: gem: Take into account IOMMU aperture

The IOMMU may not always be able to address 2 GiB of memory. On Tegra20,
the GART supports 32 MiB starting at 0x58000000. Also the aperture on
Tegra30 and later is in fact the full 4 GiB, rather than just 2 GiB as
currently assumed.

Signed-off-by: Thierry Reding <treding@nvidia.com>