Messages in this thread | | | Subject | Re: [PATCH V3 0/4] cpufreq: cppc: Add support for frequency invariance | From | Qian Cai <> | Date | Tue, 29 Jun 2021 09:38:21 -0400 |
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On 6/29/2021 5:06 AM, Ionela Voinescu wrote: >> Ionela, I found that set ACPI_PROCESSOR=y instead of ACPI_PROCESSOR=m >> will fix the previous mentioned issues here (any explanations of that?) >> even though the scaling down is not perfect. Now, we have the following >> on this idle system: >> > > I don't see how this would have played a role. The cppc cpufreq driver > depends on functionality gated by CONFIG_ACPI_CPPC_LIB which in turn > needs CONFIG_ACPI_PROCESSOR to trigger the parsing of the _CPC objects. > If CONFIG_ACPI_PROCESSOR functionality is not built in or loaded, the > cppc cpufreq driver could not be used at all.
Ionela, that is fine. I can live with setting ACPI_PROCESSOR=y to workaround. I was more of just curious about why manually loading processor.ko would set the lowest to 2GHz instead of 1GHz.
Anyway, if running below the lowest is not the a concern, then I have concluded my testing here. Feel free to include:
Tested-by: Qian Cai <quic_qiancai@quicinc.com>
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