This provides an initial base support for the XIVE interrupt controller and the new IODA3 compliant PHB4, both found on POWER9. The series is interleaved with a bug fix or two as I found problems in sim.
The new OPAL APIs haven't been committed yet so are still subject to change, thus the patches relying on them shouldn't bee merged just yet, at least not until we freeze those APIs. The individual fixes are good to go though. This is very basic support for XIVE by using OPAL APIs that simulate a XICS. This is meant as a fallback if the interrupt controller implementation is unknown. A subsequent series will provide the native support for XIVE (aka exploitation mode) and this will remain as a fallback for future chip that might implement a variant that isn't backward compatible. Similarily, we use an OPAL call for TCE invalidations in IODA3. We may at some point add native support for PHB4, but this gives us a fallback in case the HW changes in unsupported ways. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
