> >> Tha patch implements SCM async-flush hcall and sets the > >> ND_REGION_ASYNC capability when the platform device tree > >> has "ibm,async-flush-required" set. > > > > So, you are reusing the existing ND_REGION_ASYNC flag for the > > hypercall based async flush with device tree discovery? > > > > Out of curiosity, does virtio based flush work in ppc? Was just thinking > > if we can reuse virtio based flush present in virtio-pmem? Or anything > > else we are trying to achieve here? > > > > > Not with PAPR based pmem driver papr_scm.ko. The devices there are > considered platform device and we use hypercalls to configure the > device. On similar fashion we are now using hypercall to flush the host > based caches. o.k. Thanks for answering. Best regards, Pankaj > > -aneesh