On Thu, Jun 16, 2022 at 10:01:06AM +0100, Sudeep Holla wrote: > FFH Operation Region space can be used to trigger SMC or HVC calls, > using the Arm SMC Calling Convention (SMCCC). The choice of conduit > (SMC or HVC) is based on what the kernel choose based on PSCI as with > any other users of SMCCC within the kernel. > > Function identifiers only the SMCCC SiP Service, OEM Service and FF-A > specific call range. > > Offset can be either 0(32 bit calling convention) or 1(64 bit calling > convention). The length must be set with the range applicable based > on the value of the offset. > > Cc: Catalin Marinas <catalin.marinas@xxxxxxx> > Cc: Will Deacon <will@xxxxxxxxxx> > Signed-off-by: Sudeep Holla <sudeep.holla@xxxxxxx> Acked-by: Catalin Marinas <catalin.marinas@xxxxxxx>
