Re: [PATCH 0/8] Flush RSC votes properly on more RPMh platforms

From: Konrad Dybcio
Date: Wed May 31 2023 - 10:26:14 EST




On 31.05.2023 15:22, Konrad Dybcio wrote:
> As pointed out in [1], the Linux implementation of RSC basically requires
> (even if not explicitly) that we point it to a power domain which
> represents the power state of the CPUs. In an effort to fulfill that
> requirement, make it required in bindings and hook it up on all platforms
> where I was able to do. This means all RPMh platforms, except
>
> - SC7180
> - SC7280
> - SA8775
>
> As there wasn't an idle-states setup (which may be on purpose for CrOS
> devices, certainly not for Windows SC7[12]80s) that I could validate.
> (Doug, Bartosz, could you guys look into your respective platforms of
> interest here?)
>
> This series also adds support for idle states on SM6350, as I was able
> to add and test that.
I noticed that 7280 is WIP:

https://lore.kernel.org/lkml/20230424110933.3908-4-quic_mkshah@xxxxxxxxxxx/

Konrad
>
> [1] https://lore.kernel.org/linux-arm-msm/20230512150425.3171122-1-quic_bjorande@xxxxxxxxxxx/
>
> Signed-off-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>
> ---
> Konrad Dybcio (8):
> dt-bindings: soc: qcom,rpmh-rsc: Require power-domains
> arm64: dts: qcom: sm6350: Add PSCI idle states
> arm64: dts: qcom: qdu1000: Flush RSC sleep & wake votes
> arm64: dts: qcom: sc8180x: Flush RSC sleep & wake votes
> arm64: dts: qcom: sdm670: Flush RSC sleep & wake votes
> arm64: dts: qcom: sdm845: Flush RSC sleep & wake votes
> arm64: dts: qcom: sm6350: Flush RSC sleep & wake votes
> arm64: dts: qcom: sm8550: Flush RSC sleep & wake votes
>
> .../bindings/soc/qcom/qcom,rpmh-rsc.yaml | 2 +
> arch/arm64/boot/dts/qcom/qdu1000.dtsi | 1 +
> arch/arm64/boot/dts/qcom/sc8180x.dtsi | 1 +
> arch/arm64/boot/dts/qcom/sdm670.dtsi | 1 +
> arch/arm64/boot/dts/qcom/sdm845.dtsi | 1 +
> arch/arm64/boot/dts/qcom/sm6350.dtsi | 142 +++++++++++++++++++++
> arch/arm64/boot/dts/qcom/sm8550.dtsi | 1 +
> 7 files changed, 149 insertions(+)
> ---
> base-commit: d4cee89031c80066ec461bb77b5e13a4f37d5fd2
> change-id: 20230531-topic-rsc-35e838da9afb
>
> Best regards,