These are used by umr to sort the hive nodes since the kernel initializes the nodes in order of bus enumeration not XGMI hive enumeration. Signed-off-by: Tom St Denis <tom.stdenis@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>