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Message-ID: <7c583e2e-14b6-40e5-8e12-01584b817e4c@arm.com> Date: Fri, 25 Apr 2025 17:31:01 +0100 From: Christian Loehle <christian.loehle@....com> To: Ricardo Neri <ricardo.neri-calderon@...ux.intel.com>, Sudeep Holla <sudeep.holla@....com>, "Rafael J. Wysocki" <rafael@...nel.org>, Danilo Krummrich <dakr@...nel.org>, Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>, Len Brown <len.brown@...el.com> Cc: linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org, Ricardo Neri <ricardo.neri@...el.com> Subject: Re: [PATCH 1/2] arch_topology: Relocate cpu_scale to topology.[h|c] On 4/19/25 03:55, Ricardo Neri wrote: > arch_topology.c provides functionality to parse and scale CPU capacity. It > also provides a corresponding sysfs interface. Some architectures parse > and scale CPU capacity differently as per their own needs. On Intel > processors, for instance, it is responsibility of the Intel P-state driver. > > Relocate the implementation of that interface to a common location in > topology.c. Architectures can use the interface and populate it using their > own mechanisms. > > An alternative approach would be to compile arch_topology.c even if not > needed only to get this interface. This approach would create duplicated > and conflicting functionality and data structures. > > Signed-off-by: Ricardo Neri <ricardo.neri-calderon@...ux.intel.com> Maybe an FYI for the non-x86 folks, this doesn't break anything on the usual arm64 setup: Tested-by: Christian Loehle <christian.loehle@....com>
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