[RFC] powerpc/kernel: Add 'ibm,thread-groups' property for CPU allocation

2018-02-07 Thread Michael Bringmann
[Withdraw/replace previous version submission. Awaiting hardware for further migration tests. Request comments about current state.] Add code to parse the new property 'ibm,thread-groups" when it is present. The content of this property explicitly defines the number of threads per core as well

[RFC] powerpc/kernel: Add 'ibm,thread-groups' property for CPU allocation

2018-02-15 Thread Michael Bringmann
Add code to parse the new property 'ibm,thread-groups" when it is present. The content of this property explicitly defines the number of threads per core as well as the PowerPC 'threads_core_mask'. The design provides a common device-tree for both P9 normal core and P9 fused core systems. The new