FWIW, your email is malformed, please wrap at 78 chars.
On Mon, Jan 25, 2021 at 06:11:14AM +0000, Zhang, Rui wrote: > In short, the current code does not allow RAPL energy counter to > return 0. And all the work I do is to allow Psys energy counter to > return 0. Ok. > In this way, the Psys event is "valid" on all CPUs, so we don't need > to handle the master thing. So RAPL is mapped to DIEs, and IIRC we can have multiple DIEs per Package. But the master thing is a Package. Is this all moot because SPR has one DIE per Package? Because if it would have more, there's be more interesting problems I suppose.