Alistair Popple wrote:

DEVMAP PTEs are no longer required to support ZONE_DEVICE so remove
them.

Signed-off-by: Alistair Popple <apopple@nvidia.com>
Suggested-by: Chunyan Zhang <zhang.lyra@gmail.com>
Reviewed-by: Björn Töpel <redacted>

This and the next are candidates to squash into the previous remove
patch, right? ...and I am not sure a standalone "Revert" commit is
appropriate when other archs get an omnibus "Remove" cleanup with a
longer explanation in the changelog.

Patch looks good though and you can preserve my Reviewed-by on the
squash.