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Message-Id: <20220630084250.1763869-1-abel.vesa@linaro.org>
Date: Thu, 30 Jun 2022 11:42:50 +0300
From: Abel Vesa <abel.vesa@...aro.org>
To: Bjorn Andersson <bjorn.andersson@...aro.org>,
Andy Gross <agross@...nel.org>,
Konrad Dybcio <konrad.dybcio@...ainline.org>,
Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
Rob Herring <robh@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
Abel Vesa <abel.vesa@...aro.org>
Subject: [PATCH] arm64: dts: qcom: sdm845: Switch PSCI cpu idle states from PC to OSI
This switches from the flat PC idle states of sdm845 to OSI hierarchical
idle states. The exceptions are the cheza plaftorms, which need to remain
with PC idle states. So in order allow all the other platforms to switch,
while cheza platforms to remain the same, replace the PC idle states with
the OSI ones in the main SDM845 dtsi, and then override the inherited OSI
states with PC ones, delete inherited psci cpus nodes, domain idle states
and power domain properties.
Signed-off-by: Abel Vesa <abel.vesa@...aro.org>
---
In order to maintain bisectability, I kept everything in one patch.
arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi | 132 ++++++++++++++++++++
arch/arm64/boot/dts/qcom/sdm845.dtsi | 136 +++++++++++++--------
2 files changed, 214 insertions(+), 54 deletions(-)
diff --git a/arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi b/arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi
index e7e4cc5936aa..8640748fc53c 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi
@@ -145,6 +145,138 @@ panel_in_edp: endpoint {
};
};
+&psci {
+ /delete-node/ cpu0;
+ /delete-node/ cpu1;
+ /delete-node/ cpu2;
+ /delete-node/ cpu3;
+ /delete-node/ cpu4;
+ /delete-node/ cpu5;
+ /delete-node/ cpu6;
+ /delete-node/ cpu7;
+ /delete-node/ cpu-cluster0;
+};
+
+&cpus {
+ /delete-node/ domain-idle-states;
+};
+
+&cpu_idle_states {
+ LITTLE_CPU_SLEEP_0: cpu-sleep-0-0 {
+ compatible = "arm,idle-state";
+ idle-state-name = "little-power-down";
+ arm,psci-suspend-param = <0x40000003>;
+ entry-latency-us = <350>;
+ exit-latency-us = <461>;
+ min-residency-us = <1890>;
+ local-timer-stop;
+ };
+
+ LITTLE_CPU_SLEEP_1: cpu-sleep-0-1 {
+ compatible = "arm,idle-state";
+ idle-state-name = "little-rail-power-down";
+ arm,psci-suspend-param = <0x40000004>;
+ entry-latency-us = <360>;
+ exit-latency-us = <531>;
+ min-residency-us = <3934>;
+ local-timer-stop;
+ };
+
+ BIG_CPU_SLEEP_0: cpu-sleep-1-0 {
+ compatible = "arm,idle-state";
+ idle-state-name = "big-power-down";
+ arm,psci-suspend-param = <0x40000003>;
+ entry-latency-us = <264>;
+ exit-latency-us = <621>;
+ min-residency-us = <952>;
+ local-timer-stop;
+ };
+
+ BIG_CPU_SLEEP_1: cpu-sleep-1-1 {
+ compatible = "arm,idle-state";
+ idle-state-name = "big-rail-power-down";
+ arm,psci-suspend-param = <0x40000004>;
+ entry-latency-us = <702>;
+ exit-latency-us = <1061>;
+ min-residency-us = <4488>;
+ local-timer-stop;
+ };
+
+ CLUSTER_SLEEP_0: cluster-sleep-0 {
+ compatible = "arm,idle-state";
+ idle-state-name = "cluster-power-down";
+ arm,psci-suspend-param = <0x400000F4>;
+ entry-latency-us = <3263>;
+ exit-latency-us = <6562>;
+ min-residency-us = <9987>;
+ local-timer-stop;
+ };
+};
+
+&CPU0 {
+ /delete-property/ power-domains;
+ /delete-property/ power-domain-names;
+ cpu-idle-states = <&LITTLE_CPU_SLEEP_0
+ &LITTLE_CPU_SLEEP_1
+ &CLUSTER_SLEEP_0>;
+};
+
+&CPU1 {
+ /delete-property/ power-domains;
+ /delete-property/ power-domain-names;
+ cpu-idle-states = <&LITTLE_CPU_SLEEP_0
+ &LITTLE_CPU_SLEEP_1
+ &CLUSTER_SLEEP_0>;
+};
+
+&CPU2 {
+ /delete-property/ power-domains;
+ /delete-property/ power-domain-names;
+ cpu-idle-states = <&LITTLE_CPU_SLEEP_0
+ &LITTLE_CPU_SLEEP_1
+ &CLUSTER_SLEEP_0>;
+};
+
+&CPU3 {
+ /delete-property/ power-domains;
+ /delete-property/ power-domain-names;
+ cpu-idle-states = <&LITTLE_CPU_SLEEP_0
+ &LITTLE_CPU_SLEEP_1
+ &CLUSTER_SLEEP_0>;
+};
+
+&CPU4 {
+ /delete-property/ power-domains;
+ /delete-property/ power-domain-names;
+ cpu-idle-states = <&BIG_CPU_SLEEP_0
+ &BIG_CPU_SLEEP_1
+ &CLUSTER_SLEEP_0>;
+};
+
+&CPU5 {
+ /delete-property/ power-domains;
+ /delete-property/ power-domain-names;
+ cpu-idle-states = <&BIG_CPU_SLEEP_0
+ &BIG_CPU_SLEEP_1
+ &CLUSTER_SLEEP_0>;
+};
+
+&CPU6 {
+ /delete-property/ power-domains;
+ /delete-property/ power-domain-names;
+ cpu-idle-states = <&BIG_CPU_SLEEP_0
+ &BIG_CPU_SLEEP_1
+ &CLUSTER_SLEEP_0>;
+};
+
+&CPU7 {
+ /delete-property/ power-domains;
+ /delete-property/ power-domain-names;
+ cpu-idle-states = <&BIG_CPU_SLEEP_0
+ &BIG_CPU_SLEEP_1
+ &CLUSTER_SLEEP_0>;
+};
+
/*
* Reserved memory changes
*
diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
index 83439739de37..6bb027d2ab58 100644
--- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
@@ -188,7 +188,7 @@ spss_mem: spss@...00000 {
};
};
- cpus {
+ cpus: cpus {
#address-cells = <2>;
#size-cells = <0>;
@@ -197,15 +197,14 @@ CPU0: cpu@0 {
compatible = "qcom,kryo385";
reg = <0x0 0x0>;
enable-method = "psci";
- cpu-idle-states = <&LITTLE_CPU_SLEEP_0
- &LITTLE_CPU_SLEEP_1
- &CLUSTER_SLEEP_0>;
capacity-dmips-mhz = <611>;
dynamic-power-coefficient = <290>;
qcom,freq-domain = <&cpufreq_hw 0>;
operating-points-v2 = <&cpu0_opp_table>;
interconnects = <&gladiator_noc MASTER_APPSS_PROC 3 &mem_noc SLAVE_EBI1 3>,
<&osm_l3 MASTER_OSM_L3_APPS &osm_l3 SLAVE_OSM_L3>;
+ power-domains = <&CPU_PD0>;
+ power-domain-names = "psci";
#cooling-cells = <2>;
next-level-cache = <&L2_0>;
L2_0: l2-cache {
@@ -222,15 +221,14 @@ CPU1: cpu@100 {
compatible = "qcom,kryo385";
reg = <0x0 0x100>;
enable-method = "psci";
- cpu-idle-states = <&LITTLE_CPU_SLEEP_0
- &LITTLE_CPU_SLEEP_1
- &CLUSTER_SLEEP_0>;
capacity-dmips-mhz = <611>;
dynamic-power-coefficient = <290>;
qcom,freq-domain = <&cpufreq_hw 0>;
operating-points-v2 = <&cpu0_opp_table>;
interconnects = <&gladiator_noc MASTER_APPSS_PROC 3 &mem_noc SLAVE_EBI1 3>,
<&osm_l3 MASTER_OSM_L3_APPS &osm_l3 SLAVE_OSM_L3>;
+ power-domains = <&CPU_PD1>;
+ power-domain-names = "psci";
#cooling-cells = <2>;
next-level-cache = <&L2_100>;
L2_100: l2-cache {
@@ -244,15 +242,14 @@ CPU2: cpu@200 {
compatible = "qcom,kryo385";
reg = <0x0 0x200>;
enable-method = "psci";
- cpu-idle-states = <&LITTLE_CPU_SLEEP_0
- &LITTLE_CPU_SLEEP_1
- &CLUSTER_SLEEP_0>;
capacity-dmips-mhz = <611>;
dynamic-power-coefficient = <290>;
qcom,freq-domain = <&cpufreq_hw 0>;
operating-points-v2 = <&cpu0_opp_table>;
interconnects = <&gladiator_noc MASTER_APPSS_PROC 3 &mem_noc SLAVE_EBI1 3>,
<&osm_l3 MASTER_OSM_L3_APPS &osm_l3 SLAVE_OSM_L3>;
+ power-domains = <&CPU_PD2>;
+ power-domain-names = "psci";
#cooling-cells = <2>;
next-level-cache = <&L2_200>;
L2_200: l2-cache {
@@ -266,9 +263,6 @@ CPU3: cpu@300 {
compatible = "qcom,kryo385";
reg = <0x0 0x300>;
enable-method = "psci";
- cpu-idle-states = <&LITTLE_CPU_SLEEP_0
- &LITTLE_CPU_SLEEP_1
- &CLUSTER_SLEEP_0>;
capacity-dmips-mhz = <611>;
dynamic-power-coefficient = <290>;
qcom,freq-domain = <&cpufreq_hw 0>;
@@ -276,6 +270,8 @@ &LITTLE_CPU_SLEEP_1
interconnects = <&gladiator_noc MASTER_APPSS_PROC 3 &mem_noc SLAVE_EBI1 3>,
<&osm_l3 MASTER_OSM_L3_APPS &osm_l3 SLAVE_OSM_L3>;
#cooling-cells = <2>;
+ power-domains = <&CPU_PD3>;
+ power-domain-names = "psci";
next-level-cache = <&L2_300>;
L2_300: l2-cache {
compatible = "cache";
@@ -289,14 +285,13 @@ CPU4: cpu@400 {
reg = <0x0 0x400>;
enable-method = "psci";
capacity-dmips-mhz = <1024>;
- cpu-idle-states = <&BIG_CPU_SLEEP_0
- &BIG_CPU_SLEEP_1
- &CLUSTER_SLEEP_0>;
dynamic-power-coefficient = <442>;
qcom,freq-domain = <&cpufreq_hw 1>;
operating-points-v2 = <&cpu4_opp_table>;
interconnects = <&gladiator_noc MASTER_APPSS_PROC 3 &mem_noc SLAVE_EBI1 3>,
<&osm_l3 MASTER_OSM_L3_APPS &osm_l3 SLAVE_OSM_L3>;
+ power-domains = <&CPU_PD4>;
+ power-domain-names = "psci";
#cooling-cells = <2>;
next-level-cache = <&L2_400>;
L2_400: l2-cache {
@@ -311,14 +306,13 @@ CPU5: cpu@500 {
reg = <0x0 0x500>;
enable-method = "psci";
capacity-dmips-mhz = <1024>;
- cpu-idle-states = <&BIG_CPU_SLEEP_0
- &BIG_CPU_SLEEP_1
- &CLUSTER_SLEEP_0>;
dynamic-power-coefficient = <442>;
qcom,freq-domain = <&cpufreq_hw 1>;
operating-points-v2 = <&cpu4_opp_table>;
interconnects = <&gladiator_noc MASTER_APPSS_PROC 3 &mem_noc SLAVE_EBI1 3>,
<&osm_l3 MASTER_OSM_L3_APPS &osm_l3 SLAVE_OSM_L3>;
+ power-domains = <&CPU_PD5>;
+ power-domain-names = "psci";
#cooling-cells = <2>;
next-level-cache = <&L2_500>;
L2_500: l2-cache {
@@ -333,14 +327,13 @@ CPU6: cpu@600 {
reg = <0x0 0x600>;
enable-method = "psci";
capacity-dmips-mhz = <1024>;
- cpu-idle-states = <&BIG_CPU_SLEEP_0
- &BIG_CPU_SLEEP_1
- &CLUSTER_SLEEP_0>;
dynamic-power-coefficient = <442>;
qcom,freq-domain = <&cpufreq_hw 1>;
operating-points-v2 = <&cpu4_opp_table>;
interconnects = <&gladiator_noc MASTER_APPSS_PROC 3 &mem_noc SLAVE_EBI1 3>,
<&osm_l3 MASTER_OSM_L3_APPS &osm_l3 SLAVE_OSM_L3>;
+ power-domains = <&CPU_PD6>;
+ power-domain-names = "psci";
#cooling-cells = <2>;
next-level-cache = <&L2_600>;
L2_600: l2-cache {
@@ -355,14 +348,13 @@ CPU7: cpu@700 {
reg = <0x0 0x700>;
enable-method = "psci";
capacity-dmips-mhz = <1024>;
- cpu-idle-states = <&BIG_CPU_SLEEP_0
- &BIG_CPU_SLEEP_1
- &CLUSTER_SLEEP_0>;
dynamic-power-coefficient = <442>;
qcom,freq-domain = <&cpufreq_hw 1>;
operating-points-v2 = <&cpu4_opp_table>;
interconnects = <&gladiator_noc MASTER_APPSS_PROC 3 &mem_noc SLAVE_EBI1 3>,
<&osm_l3 MASTER_OSM_L3_APPS &osm_l3 SLAVE_OSM_L3>;
+ power-domains = <&CPU_PD7>;
+ power-domain-names = "psci";
#cooling-cells = <2>;
next-level-cache = <&L2_700>;
L2_700: l2-cache {
@@ -407,53 +399,35 @@ core7 {
};
};
- idle-states {
+ cpu_idle_states: idle-states {
entry-method = "psci";
LITTLE_CPU_SLEEP_0: cpu-sleep-0-0 {
compatible = "arm,idle-state";
- idle-state-name = "little-power-down";
- arm,psci-suspend-param = <0x40000003>;
+ idle-state-name = "little-rail-power-collapse";
+ arm,psci-suspend-param = <0x40000004>;
entry-latency-us = <350>;
exit-latency-us = <461>;
min-residency-us = <1890>;
local-timer-stop;
};
- LITTLE_CPU_SLEEP_1: cpu-sleep-0-1 {
- compatible = "arm,idle-state";
- idle-state-name = "little-rail-power-down";
- arm,psci-suspend-param = <0x40000004>;
- entry-latency-us = <360>;
- exit-latency-us = <531>;
- min-residency-us = <3934>;
- local-timer-stop;
- };
-
BIG_CPU_SLEEP_0: cpu-sleep-1-0 {
compatible = "arm,idle-state";
- idle-state-name = "big-power-down";
- arm,psci-suspend-param = <0x40000003>;
+ idle-state-name = "big-rail-power-collapse";
+ arm,psci-suspend-param = <0x40000004>;
entry-latency-us = <264>;
exit-latency-us = <621>;
min-residency-us = <952>;
local-timer-stop;
};
+ };
- BIG_CPU_SLEEP_1: cpu-sleep-1-1 {
- compatible = "arm,idle-state";
- idle-state-name = "big-rail-power-down";
- arm,psci-suspend-param = <0x40000004>;
- entry-latency-us = <702>;
- exit-latency-us = <1061>;
- min-residency-us = <4488>;
- local-timer-stop;
- };
-
+ domain-idle-states {
CLUSTER_SLEEP_0: cluster-sleep-0 {
- compatible = "arm,idle-state";
- idle-state-name = "cluster-power-down";
- arm,psci-suspend-param = <0x400000F4>;
+ compatible = "domain-idle-state";
+ idle-state-name = "cluster-power-collapse";
+ arm,psci-suspend-param = <0x4100c244>;
entry-latency-us = <3263>;
exit-latency-us = <6562>;
min-residency-us = <9987>;
@@ -1050,9 +1024,63 @@ slpi_smp2p_in: slave-kernel {
};
};
- psci {
+ psci: psci {
compatible = "arm,psci-1.0";
method = "smc";
+
+ CPU_PD0: cpu0 {
+ #power-domain-cells = <0>;
+ power-domains = <&CLUSTER_PD>;
+ domain-idle-states = <&LITTLE_CPU_SLEEP_0>;
+ };
+
+ CPU_PD1: cpu1 {
+ #power-domain-cells = <0>;
+ power-domains = <&CLUSTER_PD>;
+ domain-idle-states = <&LITTLE_CPU_SLEEP_0>;
+ };
+
+ CPU_PD2: cpu2 {
+ #power-domain-cells = <0>;
+ power-domains = <&CLUSTER_PD>;
+ domain-idle-states = <&LITTLE_CPU_SLEEP_0>;
+ };
+
+ CPU_PD3: cpu3 {
+ #power-domain-cells = <0>;
+ power-domains = <&CLUSTER_PD>;
+ domain-idle-states = <&LITTLE_CPU_SLEEP_0>;
+ };
+
+ CPU_PD4: cpu4 {
+ #power-domain-cells = <0>;
+ power-domains = <&CLUSTER_PD>;
+ domain-idle-states = <&BIG_CPU_SLEEP_0>;
+ };
+
+ CPU_PD5: cpu5 {
+ #power-domain-cells = <0>;
+ power-domains = <&CLUSTER_PD>;
+ domain-idle-states = <&BIG_CPU_SLEEP_0>;
+ };
+
+ CPU_PD6: cpu6 {
+ #power-domain-cells = <0>;
+ power-domains = <&CLUSTER_PD>;
+ domain-idle-states = <&BIG_CPU_SLEEP_0>;
+ };
+
+ CPU_PD7: cpu7 {
+ #power-domain-cells = <0>;
+ power-domains = <&CLUSTER_PD>;
+ domain-idle-states = <&BIG_CPU_SLEEP_0>;
+ };
+
+ CLUSTER_PD: cpu-cluster0 {
+ #power-domain-cells = <0>;
+ domain-idle-states = <&CLUSTER_SLEEP_0>;
+ };
+
};
soc: soc@0 {
--
2.34.3
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