drm/nouveau/platform: allow to specify the IOMMU bit

Current Tegra code taking advantage of the IOMMU assumes a hardcoded
value for the IOMMU bit. Make it a platform property instead for
flexibility.

v2 (Ben Skeggs): remove nvkm dependence on drm structures

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Alexandre Courbot 2015-09-04 19:59:31 +09:00 • committed by Ben Skeggs
commit e396ecd178
6 changed files with 46 additions and 10 deletions