> For use cases such as the per-core RAPL PMU,
> there exists a need for a unique core ID across the entire system
> with
> multiple PKG domains.
Agreed. And there are other cases that a system unique core ID is
needed, like in drivers/hwmon/coretemp.c, where per-core temperature
info is saved in
From: K Prateek Nayak
On x86, topology_core_id() returns a unique core ID within the PKG
domain. Looking at match_smt() suggests that a core ID just needs to be
unique within a LLC domain. For use cases such as the per-core RAPL PMU,
there exists a need for a unique core ID across the entire syst
