I had bugs in the old path where I was laying out as tiled (so we'd render
tiled) but then only allocating space in the shared object for linear
rendering. The resource_from_handle makes it so the same layout choices
are made in both the import and export scanout cases. Also, fixes a leak
of the fd that was tripping up the CTS.
Now that we're checking PIPE_BIND_SHARED to choose to use RO, the
DRM_FORMAT_MOD_LINEAR check wasn't needed any more.
Fixes visual corruption and MMU faults in X in renderonly mode.
Fixes: bd09bb1629 ("v3d: SHARED but not necessarily SCANOUT buffers on RO must be linear.")
Eric Anholt
59527a36e9