This series adds support for the para-virtualised storage class memory interface defined by the Power Architecture Platform Reference.
Patch 1 implements the pseries device discovery (via DT) and hotplug support (via RTAS hotplug interrupt). Patch 2 implements a driver that binds to the platform devices, does the necessary H-calls to activate the region and configures the libnvdimm interface. It also adds an NDCTL implementation to allow the "metadata" space associated with an SCM region to be used as label space. This should go in via the ppc tree, but an ack from Dan for patch two would be appreciated.