diff mbox series

arm64: dts: qcom: sc7180: Split up TF-A related PSCI configuration

Message ID 20230808-sc7180-tfa-fw-v1-1-666d5d8467e5@trvn.ru (mailing list archive)
State Accepted
Headers show
Series arm64: dts: qcom: sc7180: Split up TF-A related PSCI configuration | expand

Commit Message

Nikita Travkin Aug. 8, 2023, 10:10 a.m. UTC 
When initially submitted, the sc7180 support only targeted CROS devices
that make use of alternative TF-A firmware and not the official Qualcomm
firmware. The PSCI implementations in those firmwares differ however so
devices that use qcom firmware, like WoA laptops such as aspire1 need
different setup.

This commit adjusts the SoC dtsi to the OSI mode PSCI setup, common to
the Qualcomm firmware and introduces new sc7180-firmware-tfa.dtsi that
overrides the PSCI setup for the PC mode and uses TF-A specific
psci-suspend-param. This dtsi is added to all boards that appear to use
TF-A.

Signed-off-by: Nikita Travkin <nikita@trvn.ru>
---
This series unlocks low power states on various 7c devices such as
Aspire 1 and a few not-yet-submitted WoA laptops as well as for all the
sm7125 devices proposed on the lists [1]. It should create no change for
existing TF-A users.

With this, at least on Aspire 1 I can observe the qcom_stats counting
suspend time:

    # grep "" -R /sys/kernel/debug/qcom_stats/
    ddr:Count: 2
    ddr:Last Entered At: 2787856692
    ddr:Last Exited At: 3030611778
    ddr:Accumulated Duration: 761257025
    cxsd:Count: 2
    cxsd:Last Entered At: 2787867135
    cxsd:Last Exited At: 3030596907
    cxsd:Accumulated Duration: 761205999
    aosd:Count: 2
    aosd:Last Entered At: 2787867643
    aosd:Last Exited At: 3030595637
    aosd:Accumulated Duration: 761202409
    modem:Count: 59
    modem:Last Entered At: 2784580484
    modem:Last Exited At: 3032145065
    modem:Accumulated Duration: 1834999138

The suspend-param values and timings are verified with the downstream
atoll.dtsi and are similar to some other platforms [2].

[1] https://lore.kernel.org/linux-arm-msm/20230723190725.1619193-1-davidwronek@gmail.com/
[2] https://lore.kernel.org/linux-arm-msm/20230531-topic-rsc-v1-2-b4a985f57b8b@linaro.org/
---
 arch/arm64/boot/dts/qcom/sc7180-firmware-tfa.dtsi | 107 ++++++++++++++++++
 arch/arm64/boot/dts/qcom/sc7180-idp.dts           |   1 +
 arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi      |   1 +
 arch/arm64/boot/dts/qcom/sc7180.dtsi              | 127 +++++++++++++++++-----
 4 files changed, 206 insertions(+), 30 deletions(-)


---
base-commit: a8726072d7bfe7b2795f4ba99e07bb514c095063
change-id: 20230808-sc7180-tfa-fw-99831d7a9094

Best regards,

Comments

Bjorn Andersson Aug. 14, 2023, 3:27 a.m. UTC | #1 
On Tue, 08 Aug 2023 15:10:13 +0500, Nikita Travkin wrote:
> When initially submitted, the sc7180 support only targeted CROS devices
> that make use of alternative TF-A firmware and not the official Qualcomm
> firmware. The PSCI implementations in those firmwares differ however so
> devices that use qcom firmware, like WoA laptops such as aspire1 need
> different setup.
> 
> This commit adjusts the SoC dtsi to the OSI mode PSCI setup, common to
> the Qualcomm firmware and introduces new sc7180-firmware-tfa.dtsi that
> overrides the PSCI setup for the PC mode and uses TF-A specific
> psci-suspend-param. This dtsi is added to all boards that appear to use
> TF-A.
> 
> [...]

Applied, thanks!

[1/1] arm64: dts: qcom: sc7180: Split up TF-A related PSCI configuration
      commit: 4fb40b22e97ecea2d18a0c450c24388909e5b44c

Best regards,
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/qcom/sc7180-firmware-tfa.dtsi b/arch/arm64/boot/dts/qcom/sc7180-firmware-tfa.dtsi
new file mode 100644
index 000000000000..ee35a454dbf6
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/sc7180-firmware-tfa.dtsi
@@ -0,0 +1,107 @@ 
+// SPDX-License-Identifier: BSD-3-Clause
+
+/*
+ * Devices that use SC7180 with TrustedFirmware-A
+ * need PSCI PC mode instead of the OSI mode provided
+ * by Qualcomm firmware.
+ */
+
+&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 = <&LITTLE_CPU_SLEEP_0
+			   &LITTLE_CPU_SLEEP_1
+			   &CLUSTER_SLEEP_0>;
+};
+
+&CPU5 {
+	/delete-property/ power-domains;
+	/delete-property/ power-domain-names;
+
+	cpu-idle-states = <&LITTLE_CPU_SLEEP_0
+			   &LITTLE_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>;
+};
+
+/delete-node/ &domain_idle_states;
+
+&idle_states {
+	CLUSTER_SLEEP_0: cluster-sleep-0 {
+		compatible = "arm,idle-state";
+		idle-state-name = "cluster-power-down";
+		arm,psci-suspend-param = <0x40003444>;
+		entry-latency-us = <3263>;
+		exit-latency-us = <6562>;
+		min-residency-us = <9926>;
+		local-timer-stop;
+	};
+};
+
+/delete-node/ &CPU_PD0;
+/delete-node/ &CPU_PD1;
+/delete-node/ &CPU_PD2;
+/delete-node/ &CPU_PD3;
+/delete-node/ &CPU_PD4;
+/delete-node/ &CPU_PD5;
+/delete-node/ &CPU_PD6;
+/delete-node/ &CPU_PD7;
+/delete-node/ &CLUSTER_PD;
+
+&apps_rsc {
+	/delete-property/ power-domains;
+};
diff --git a/arch/arm64/boot/dts/qcom/sc7180-idp.dts b/arch/arm64/boot/dts/qcom/sc7180-idp.dts
index a1c50be4ad95..0146fb0036d4 100644
--- a/arch/arm64/boot/dts/qcom/sc7180-idp.dts
+++ b/arch/arm64/boot/dts/qcom/sc7180-idp.dts
@@ -11,6 +11,7 @@ 
 #include <dt-bindings/regulator/qcom,rpmh-regulator.h>
 #include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
 #include "sc7180.dtsi"
+#include "sc7180-firmware-tfa.dtsi"
 #include "pm6150.dtsi"
 #include "pm6150l.dtsi"
 
diff --git a/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi b/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi
index af16e36bcb40..5a33e16a8b67 100644
--- a/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi
@@ -13,6 +13,7 @@ 
 #include <dt-bindings/sound/sc7180-lpass.h>
 
 #include "sc7180.dtsi"
+#include "sc7180-firmware-tfa.dtsi"
 /* PMICs depend on spmi_bus label and so must come after sc7180.dtsi */
 #include "pm6150.dtsi"
 #include "pm6150l.dtsi"
diff --git a/arch/arm64/boot/dts/qcom/sc7180.dtsi b/arch/arm64/boot/dts/qcom/sc7180.dtsi
index 9af94e267f84..a79c0f2e1879 100644
--- a/arch/arm64/boot/dts/qcom/sc7180.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi
@@ -79,9 +79,8 @@  CPU0: cpu@0 {
 			reg = <0x0 0x0>;
 			clocks = <&cpufreq_hw 0>;
 			enable-method = "psci";
-			cpu-idle-states = <&LITTLE_CPU_SLEEP_0
-					   &LITTLE_CPU_SLEEP_1
-					   &CLUSTER_SLEEP_0>;
+			power-domains = <&CPU_PD0>;
+			power-domain-names = "psci";
 			capacity-dmips-mhz = <415>;
 			dynamic-power-coefficient = <137>;
 			operating-points-v2 = <&cpu0_opp_table>;
@@ -109,9 +108,8 @@  CPU1: cpu@100 {
 			reg = <0x0 0x100>;
 			clocks = <&cpufreq_hw 0>;
 			enable-method = "psci";
-			cpu-idle-states = <&LITTLE_CPU_SLEEP_0
-					   &LITTLE_CPU_SLEEP_1
-					   &CLUSTER_SLEEP_0>;
+			power-domains = <&CPU_PD1>;
+			power-domain-names = "psci";
 			capacity-dmips-mhz = <415>;
 			dynamic-power-coefficient = <137>;
 			next-level-cache = <&L2_100>;
@@ -134,9 +132,8 @@  CPU2: cpu@200 {
 			reg = <0x0 0x200>;
 			clocks = <&cpufreq_hw 0>;
 			enable-method = "psci";
-			cpu-idle-states = <&LITTLE_CPU_SLEEP_0
-					   &LITTLE_CPU_SLEEP_1
-					   &CLUSTER_SLEEP_0>;
+			power-domains = <&CPU_PD2>;
+			power-domain-names = "psci";
 			capacity-dmips-mhz = <415>;
 			dynamic-power-coefficient = <137>;
 			next-level-cache = <&L2_200>;
@@ -159,9 +156,8 @@  CPU3: cpu@300 {
 			reg = <0x0 0x300>;
 			clocks = <&cpufreq_hw 0>;
 			enable-method = "psci";
-			cpu-idle-states = <&LITTLE_CPU_SLEEP_0
-					   &LITTLE_CPU_SLEEP_1
-					   &CLUSTER_SLEEP_0>;
+			power-domains = <&CPU_PD3>;
+			power-domain-names = "psci";
 			capacity-dmips-mhz = <415>;
 			dynamic-power-coefficient = <137>;
 			next-level-cache = <&L2_300>;
@@ -184,9 +180,8 @@  CPU4: cpu@400 {
 			reg = <0x0 0x400>;
 			clocks = <&cpufreq_hw 0>;
 			enable-method = "psci";
-			cpu-idle-states = <&LITTLE_CPU_SLEEP_0
-					   &LITTLE_CPU_SLEEP_1
-					   &CLUSTER_SLEEP_0>;
+			power-domains = <&CPU_PD4>;
+			power-domain-names = "psci";
 			capacity-dmips-mhz = <415>;
 			dynamic-power-coefficient = <137>;
 			next-level-cache = <&L2_400>;
@@ -209,9 +204,8 @@  CPU5: cpu@500 {
 			reg = <0x0 0x500>;
 			clocks = <&cpufreq_hw 0>;
 			enable-method = "psci";
-			cpu-idle-states = <&LITTLE_CPU_SLEEP_0
-					   &LITTLE_CPU_SLEEP_1
-					   &CLUSTER_SLEEP_0>;
+			power-domains = <&CPU_PD5>;
+			power-domain-names = "psci";
 			capacity-dmips-mhz = <415>;
 			dynamic-power-coefficient = <137>;
 			next-level-cache = <&L2_500>;
@@ -234,9 +228,8 @@  CPU6: cpu@600 {
 			reg = <0x0 0x600>;
 			clocks = <&cpufreq_hw 1>;
 			enable-method = "psci";
-			cpu-idle-states = <&BIG_CPU_SLEEP_0
-					   &BIG_CPU_SLEEP_1
-					   &CLUSTER_SLEEP_0>;
+			power-domains = <&CPU_PD6>;
+			power-domain-names = "psci";
 			capacity-dmips-mhz = <1024>;
 			dynamic-power-coefficient = <480>;
 			next-level-cache = <&L2_600>;
@@ -259,9 +252,8 @@  CPU7: cpu@700 {
 			reg = <0x0 0x700>;
 			clocks = <&cpufreq_hw 1>;
 			enable-method = "psci";
-			cpu-idle-states = <&BIG_CPU_SLEEP_0
-					   &BIG_CPU_SLEEP_1
-					   &CLUSTER_SLEEP_0>;
+			power-domains = <&CPU_PD7>;
+			power-domain-names = "psci";
 			capacity-dmips-mhz = <1024>;
 			dynamic-power-coefficient = <480>;
 			next-level-cache = <&L2_700>;
@@ -314,7 +306,7 @@  core7 {
 			};
 		};
 
-		idle-states {
+		idle_states: idle-states {
 			entry-method = "psci";
 
 			LITTLE_CPU_SLEEP_0: cpu-sleep-0-0 {
@@ -356,15 +348,34 @@  BIG_CPU_SLEEP_1: cpu-sleep-1-1 {
 				min-residency-us = <5555>;
 				local-timer-stop;
 			};
+		};
 
-			CLUSTER_SLEEP_0: cluster-sleep-0 {
-				compatible = "arm,idle-state";
+		domain_idle_states: domain-idle-states {
+			CLUSTER_SLEEP_PC: cluster-sleep-0 {
+				compatible = "domain-idle-state";
+				idle-state-name = "cluster-l3-power-collapse";
+				arm,psci-suspend-param = <0x41000044>;
+				entry-latency-us = <2752>;
+				exit-latency-us = <3048>;
+				min-residency-us = <6118>;
+			};
+
+			CLUSTER_SLEEP_CX_RET: cluster-sleep-1 {
+				compatible = "domain-idle-state";
+				idle-state-name = "cluster-cx-retention";
+				arm,psci-suspend-param = <0x41001244>;
+				entry-latency-us = <3638>;
+				exit-latency-us = <4562>;
+				min-residency-us = <8467>;
+			};
+
+			CLUSTER_AOSS_SLEEP: cluster-sleep-2 {
+				compatible = "domain-idle-state";
 				idle-state-name = "cluster-power-down";
-				arm,psci-suspend-param = <0x40003444>;
+				arm,psci-suspend-param = <0x4100b244>;
 				entry-latency-us = <3263>;
 				exit-latency-us = <6562>;
-				min-residency-us = <9926>;
-				local-timer-stop;
+				min-residency-us = <9826>;
 			};
 		};
 	};
@@ -567,6 +578,61 @@  pmu {
 	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 &LITTLE_CPU_SLEEP_1>;
+		};
+
+		CPU_PD1: cpu1 {
+			#power-domain-cells = <0>;
+			power-domains = <&CLUSTER_PD>;
+			domain-idle-states = <&LITTLE_CPU_SLEEP_0 &LITTLE_CPU_SLEEP_1>;
+		};
+
+		CPU_PD2: cpu2 {
+			#power-domain-cells = <0>;
+			power-domains = <&CLUSTER_PD>;
+			domain-idle-states = <&LITTLE_CPU_SLEEP_0 &LITTLE_CPU_SLEEP_1>;
+		};
+
+		CPU_PD3: cpu3 {
+			#power-domain-cells = <0>;
+			power-domains = <&CLUSTER_PD>;
+			domain-idle-states = <&LITTLE_CPU_SLEEP_0 &LITTLE_CPU_SLEEP_1>;
+		};
+
+		CPU_PD4: cpu4 {
+			#power-domain-cells = <0>;
+			power-domains = <&CLUSTER_PD>;
+			domain-idle-states = <&LITTLE_CPU_SLEEP_0 &LITTLE_CPU_SLEEP_1>;
+		};
+
+		CPU_PD5: cpu5 {
+			#power-domain-cells = <0>;
+			power-domains = <&CLUSTER_PD>;
+			domain-idle-states = <&LITTLE_CPU_SLEEP_0 &LITTLE_CPU_SLEEP_1>;
+		};
+
+		CPU_PD6: cpu6 {
+			#power-domain-cells = <0>;
+			power-domains = <&CLUSTER_PD>;
+			domain-idle-states = <&BIG_CPU_SLEEP_0 &BIG_CPU_SLEEP_1>;
+		};
+
+		CPU_PD7: cpu7 {
+			#power-domain-cells = <0>;
+			power-domains = <&CLUSTER_PD>;
+			domain-idle-states = <&BIG_CPU_SLEEP_0 &BIG_CPU_SLEEP_1>;
+		};
+
+		CLUSTER_PD: cpu-cluster0 {
+			#power-domain-cells = <0>;
+			domain-idle-states = <&CLUSTER_SLEEP_PC
+					      &CLUSTER_SLEEP_CX_RET
+					      &CLUSTER_AOSS_SLEEP>;
+		};
 	};
 
 	reserved_memory: reserved-memory {
@@ -3597,6 +3663,7 @@  apps_rsc: rsc@18200000 {
 					  <SLEEP_TCS   3>,
 					  <WAKE_TCS    3>,
 					  <CONTROL_TCS 1>;
+			power-domains = <&CLUSTER_PD>;
 
 			rpmhcc: clock-controller {
 				compatible = "qcom,sc7180-rpmh-clk";