drm/msm: implement a2xx mmu

A2XX has its own very simple MMU.

Added a msm_use_mmu() function because we can't rely on iommu_present to
decide to use MMU or not.

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Signed-off-by: Rob Clark <robdclark@gmail.com>
This commit is contained in:
Jonathan Marek 2018-11-14 17:08:04 -05:00 • committed by Rob Clark
commit c2052a4e5c
11 changed files with 242 additions and 20 deletions