Re: [PATCH v1 0/2] platform/x86/intel-uncore-freq: Expose instance ID in the sysfs

[Artem Bityutskiy]

On Fri, 2026-03-27 at 15:36 +0000, Maciej Wieczor-Retman wrote:
> on newer systems that can have multiple clusters on a single die, the
> intel-uncore-freq driver behaves differently and the domain_id is a
> globally unique value - unique on all TPMI devices. Therefore it's
> difficult to match a specific instance to a set of UFS registers for
> example visible through /sys/kernel/debug/tpmi directories.

Although, I'd say that the key point isn't that "domain_id is globally
unique" (though this is true), but that it's a synthetic value
generated by the driver rather than representing an actual HW instance
ID.

Artem.