| Message ID | 20230324073813.22158-1-krzysztof.kozlowski@linaro.org (mailing list archive) |
|---|---|
| State | Accepted |
| Headers | show |
| Series | [1/6] arm64: dts: qcom: sm8250: drop incorrect domain idle states properties | expand |
On 24/03/2023 09:38, Krzysztof Kozlowski wrote: > Domain idle states do not use 'idle-state-name' and 'local-timer-stop': > > sm8250-hdk.dtb: domain-idle-states: cluster-sleep-0: 'idle-state-name', 'local-timer-stop' do not match any of the regexes: 'pinctrl-[0-9]+' > > Reported-by: Neil Armstrong <neil.armstrong@linaro.org> > Link: https://lore.kernel.org/all/20230323-topic-sm8450-upstream-dt-bindings-fixes-v1-4-3ead1e418fe4@linaro.org/ > Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> > --- > arch/arm64/boot/dts/qcom/sm8250.dtsi | 2 -- > 1 file changed, 2 deletions(-) > > diff --git a/arch/arm64/boot/dts/qcom/sm8250.dtsi b/arch/arm64/boot/dts/qcom/sm8250.dtsi > index 79d67b466856..9cf2de87c632 100644 > --- a/arch/arm64/boot/dts/qcom/sm8250.dtsi > +++ b/arch/arm64/boot/dts/qcom/sm8250.dtsi > @@ -354,12 +354,10 @@ BIG_CPU_SLEEP_0: cpu-sleep-1-0 { > domain-idle-states { > CLUSTER_SLEEP_0: cluster-sleep-0 { > compatible = "domain-idle-state"; > - idle-state-name = "cluster-llcc-off"; > arm,psci-suspend-param = <0x4100c244>; > entry-latency-us = <3264>; > exit-latency-us = <6562>; > min-residency-us = <9987>; > - local-timer-stop; Hmm, so we support setting the broadcast timer when using plain PSCI idle states, but not when using the domain-based idle states. Ulf, Rafael, Daniel, is that an omission for the domain-based idle support? Or is it handled in some other way? > }; > }; > };
On Wed, 29 Mar 2023 at 00:51, Dmitry Baryshkov <dmitry.baryshkov@linaro.org> wrote: > > On 24/03/2023 09:38, Krzysztof Kozlowski wrote: > > Domain idle states do not use 'idle-state-name' and 'local-timer-stop': > > > > sm8250-hdk.dtb: domain-idle-states: cluster-sleep-0: 'idle-state-name', 'local-timer-stop' do not match any of the regexes: 'pinctrl-[0-9]+' > > > > Reported-by: Neil Armstrong <neil.armstrong@linaro.org> > > Link: https://lore.kernel.org/all/20230323-topic-sm8450-upstream-dt-bindings-fixes-v1-4-3ead1e418fe4@linaro.org/ > > Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> > > --- > > arch/arm64/boot/dts/qcom/sm8250.dtsi | 2 -- > > 1 file changed, 2 deletions(-) > > > > diff --git a/arch/arm64/boot/dts/qcom/sm8250.dtsi b/arch/arm64/boot/dts/qcom/sm8250.dtsi > > index 79d67b466856..9cf2de87c632 100644 > > --- a/arch/arm64/boot/dts/qcom/sm8250.dtsi > > +++ b/arch/arm64/boot/dts/qcom/sm8250.dtsi > > @@ -354,12 +354,10 @@ BIG_CPU_SLEEP_0: cpu-sleep-1-0 { > > domain-idle-states { > > CLUSTER_SLEEP_0: cluster-sleep-0 { > > compatible = "domain-idle-state"; > > - idle-state-name = "cluster-llcc-off"; > > arm,psci-suspend-param = <0x4100c244>; > > entry-latency-us = <3264>; > > exit-latency-us = <6562>; > > min-residency-us = <9987>; > > - local-timer-stop; > > Hmm, so we support setting the broadcast timer when using plain PSCI > idle states, but not when using the domain-based idle states. > > Ulf, Rafael, Daniel, is that an omission for the domain-based idle > support? Or is it handled in some other way? I am not sure that we need a DT binding specifically for this, or do we? So far, the timer is managed from platform specific code. For some Qcom based platforms, the timer should be managed in rpmh_rsc_write_next_wakeup(), which makes use of dev_pm_genpd_get_next_hrtimer(). [...] Kind regards Uffe
On Fri, 24 Mar 2023 at 08:38, Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> wrote: > > Domain idle states do not use 'idle-state-name' and 'local-timer-stop': > > sm8250-hdk.dtb: domain-idle-states: cluster-sleep-0: 'idle-state-name', 'local-timer-stop' do not match any of the regexes: 'pinctrl-[0-9]+' > > Reported-by: Neil Armstrong <neil.armstrong@linaro.org> > Link: https://lore.kernel.org/all/20230323-topic-sm8450-upstream-dt-bindings-fixes-v1-4-3ead1e418fe4@linaro.org/ > Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> > --- > arch/arm64/boot/dts/qcom/sm8250.dtsi | 2 -- > 1 file changed, 2 deletions(-) > > diff --git a/arch/arm64/boot/dts/qcom/sm8250.dtsi b/arch/arm64/boot/dts/qcom/sm8250.dtsi > index 79d67b466856..9cf2de87c632 100644 > --- a/arch/arm64/boot/dts/qcom/sm8250.dtsi > +++ b/arch/arm64/boot/dts/qcom/sm8250.dtsi > @@ -354,12 +354,10 @@ BIG_CPU_SLEEP_0: cpu-sleep-1-0 { > domain-idle-states { > CLUSTER_SLEEP_0: cluster-sleep-0 { > compatible = "domain-idle-state"; > - idle-state-name = "cluster-llcc-off"; FYI: If someone wants to add support for this property, I wouldn't mind. > arm,psci-suspend-param = <0x4100c244>; > entry-latency-us = <3264>; > exit-latency-us = <6562>; > min-residency-us = <9987>; > - local-timer-stop; > }; > }; > }; > -- > 2.34.1 > Kind regards Uffe
On 29/03/2023 12:45, Ulf Hansson wrote: > On Wed, 29 Mar 2023 at 00:51, Dmitry Baryshkov > <dmitry.baryshkov@linaro.org> wrote: >> >> On 24/03/2023 09:38, Krzysztof Kozlowski wrote: >>> Domain idle states do not use 'idle-state-name' and 'local-timer-stop': >>> >>> sm8250-hdk.dtb: domain-idle-states: cluster-sleep-0: 'idle-state-name', 'local-timer-stop' do not match any of the regexes: 'pinctrl-[0-9]+' >>> >>> Reported-by: Neil Armstrong <neil.armstrong@linaro.org> >>> Link: https://lore.kernel.org/all/20230323-topic-sm8450-upstream-dt-bindings-fixes-v1-4-3ead1e418fe4@linaro.org/ >>> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> >>> --- >>> arch/arm64/boot/dts/qcom/sm8250.dtsi | 2 -- >>> 1 file changed, 2 deletions(-) >>> >>> diff --git a/arch/arm64/boot/dts/qcom/sm8250.dtsi b/arch/arm64/boot/dts/qcom/sm8250.dtsi >>> index 79d67b466856..9cf2de87c632 100644 >>> --- a/arch/arm64/boot/dts/qcom/sm8250.dtsi >>> +++ b/arch/arm64/boot/dts/qcom/sm8250.dtsi >>> @@ -354,12 +354,10 @@ BIG_CPU_SLEEP_0: cpu-sleep-1-0 { >>> domain-idle-states { >>> CLUSTER_SLEEP_0: cluster-sleep-0 { >>> compatible = "domain-idle-state"; >>> - idle-state-name = "cluster-llcc-off"; >>> arm,psci-suspend-param = <0x4100c244>; >>> entry-latency-us = <3264>; >>> exit-latency-us = <6562>; >>> min-residency-us = <9987>; >>> - local-timer-stop; >> >> Hmm, so we support setting the broadcast timer when using plain PSCI >> idle states, but not when using the domain-based idle states. >> >> Ulf, Rafael, Daniel, is that an omission for the domain-based idle >> support? Or is it handled in some other way? > > I am not sure that we need a DT binding specifically for this, or do we? > > So far, the timer is managed from platform specific code. For some > Qcom based platforms, the timer should be managed in > rpmh_rsc_write_next_wakeup(), which makes use of > dev_pm_genpd_get_next_hrtimer(). I'm not sure whether I fully follow this (I might lack some understanding here). I thought that with "local-timer-stop" (well, CPUIDLE_FLAG_TIMER_STOP), we were switching to the broadcast timer before a core/cluster goes into idle state with no local timer, while with rpmh_rsc_write_next_wakeup() we write that only before shutting down the last core (see the comment at rpmh_flush()). This might be an expected thing, I probably don't have enough understanding of the cpuidle internals to judge this. > > [...] > > Kind regards > Uffe
On Fri, 24 Mar 2023 08:38:08 +0100, Krzysztof Kozlowski wrote: > Domain idle states do not use 'idle-state-name' and 'local-timer-stop': > > sm8250-hdk.dtb: domain-idle-states: cluster-sleep-0: 'idle-state-name', 'local-timer-stop' do not match any of the regexes: 'pinctrl-[0-9]+' > > Applied, thanks! [1/6] arm64: dts: qcom: sm8250: drop incorrect domain idle states properties commit: dffc4b5c086cf1d3dae4761427122a56b9d1253a [2/6] arm64: dts: qcom: sdm845: drop incorrect domain idle states properties commit: 1766e9155d086cd238c24113a7be9740d35c2ebe [3/6] arm64: dts: qcom: sm6375: drop incorrect domain idle states properties commit: ac7944f01b771af7718a81793ca5b38b0e3a0c21 [4/6] arm64: dts: qcom: sm8150: drop incorrect domain idle states properties commit: 770f85c19536fde3591f4f2f70ac32f33d86b975 [5/6] arm64: dts: qcom: sm8350: drop incorrect domain idle states properties commit: 7983224c6a6cea77aa0b9b4e23bb7651241df961 [6/6] arm64: dts: qcom: sc8280xp: drop incorrect domain idle states properties commit: ea1811e2614cd66608961ae3c5a9ee6038fc424b Best regards,
diff --git a/arch/arm64/boot/dts/qcom/sm8250.dtsi b/arch/arm64/boot/dts/qcom/sm8250.dtsi index 79d67b466856..9cf2de87c632 100644 --- a/arch/arm64/boot/dts/qcom/sm8250.dtsi +++ b/arch/arm64/boot/dts/qcom/sm8250.dtsi @@ -354,12 +354,10 @@ BIG_CPU_SLEEP_0: cpu-sleep-1-0 { domain-idle-states { CLUSTER_SLEEP_0: cluster-sleep-0 { compatible = "domain-idle-state"; - idle-state-name = "cluster-llcc-off"; arm,psci-suspend-param = <0x4100c244>; entry-latency-us = <3264>; exit-latency-us = <6562>; min-residency-us = <9987>; - local-timer-stop; }; }; };
Domain idle states do not use 'idle-state-name' and 'local-timer-stop': sm8250-hdk.dtb: domain-idle-states: cluster-sleep-0: 'idle-state-name', 'local-timer-stop' do not match any of the regexes: 'pinctrl-[0-9]+' Reported-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://lore.kernel.org/all/20230323-topic-sm8450-upstream-dt-bindings-fixes-v1-4-3ead1e418fe4@linaro.org/ Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> --- arch/arm64/boot/dts/qcom/sm8250.dtsi | 2 -- 1 file changed, 2 deletions(-)