On Wed, Sep 04, 2024 at 12:00:11PM +0200, Jan Kiszka wrote: > From: Jan Kiszka <jan.kiszka@xxxxxxxxxxx> > > The PVU on the AM65 SoC is capable of restricting DMA from PCIe devices > to specific regions of host memory. Add the optional property > "memory-regions" to point to such regions of memory when PVU is used. > > Since the PVU deals with system physical addresses, utilizing the PVU > with PCIe devices also requires setting up the VMAP registers to map the > Requester ID of the PCIe device to the CBA Virtual ID, which in turn is > mapped to the system physical address. Hence, describe the VMAP > registers which are optionally unless the PVU shall used for PCIe. s/optionally/optional/ s/shall used/should be/ ? (Not sure that's the sense you intend)
