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| author |   Dmitry Baryshkov <dmitry.baryshkov@linaro.org> | 2022-03-15 17:11:04 +0300 |
|---|---|---|
| committer |   Bjorn Andersson <bjorn.andersson@linaro.org> | 2022-04-12 09:21:16 -0500 |
| commit | 0e0a8e35d72533b3eef3365e900baacd7cede8e2 (patch) | |
| tree | dd7cd4bc480b123def8f42880d4062efbbd46d78 /arch/arm64/boot/dts/qcom/sdm845.dtsi | |
| parent | arm64: dts: qcom: sm8150: Add PDC as the interrupt parent for tlmm (diff) | |
| download | linux-dev-0e0a8e35d72533b3eef3365e900baacd7cede8e2.tar.xz linux-dev-0e0a8e35d72533b3eef3365e900baacd7cede8e2.zip | |
arm64: dts: qcom: sdm845: correct dynamic power coefficients
Following sm8150/sm8250 update sdm845 capacity-dmips-mhz and
dynamic-power-coefficient based on the measurements [1], [2].
The energy model dynamic-power-coefficient values were calculated with
DPC = µW / MHz / V^2
for each OPP, and averaged across all OPPs within each cluster for the
final coefficient. Voltages were obtained from the qcom-cpufreq-hw
driver that reads voltages from the OSM LUT programmed into the SoC.
Normalized DMIPS/MHz capacity scale values for each CPU were calculated
from CoreMarks/MHz (CoreMark iterations per second per MHz), which
serves the same purpose. For each CPU, the final capacity-dmips-mhz
value is the C/MHz value of its maximum frequency normalized to
SCHED_CAPACITY_SCALE (1024) for the fastest CPU in the system.
For more details on measurement process see the commit message for the
commit 6aabed5526ee ("arm64: dts: qcom: sm8250: Add CPU capacities and
energy model").
[1] https://github.com/kdrag0n/freqbench
[2] https://github.com/kdrag0n/freqbench/tree/master/results/sdm845/main
Cc: Danny Lin <danny@kdrag0n.dev>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220315141104.730235-1-dmitry.baryshkov@linaro.org
Diffstat (limited to 'arch/arm64/boot/dts/qcom/sdm845.dtsi')
| -rw-r--r-- | arch/arm64/boot/dts/qcom/sdm845.dtsi | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi index 85dfa0842003..a49376d8ecbf 100644 --- a/arch/arm64/boot/dts/qcom/sdm845.dtsi +++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi @@ -200,8 +200,8 @@ cpu-idle-states = <&LITTLE_CPU_SLEEP_0 &LITTLE_CPU_SLEEP_1 &CLUSTER_SLEEP_0>; - capacity-dmips-mhz = <607>; - dynamic-power-coefficient = <100>; + 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>, @@ -225,8 +225,8 @@ cpu-idle-states = <&LITTLE_CPU_SLEEP_0 &LITTLE_CPU_SLEEP_1 &CLUSTER_SLEEP_0>; - capacity-dmips-mhz = <607>; - dynamic-power-coefficient = <100>; + 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>, @@ -247,8 +247,8 @@ cpu-idle-states = <&LITTLE_CPU_SLEEP_0 &LITTLE_CPU_SLEEP_1 &CLUSTER_SLEEP_0>; - capacity-dmips-mhz = <607>; - dynamic-power-coefficient = <100>; + 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>, @@ -269,8 +269,8 @@ cpu-idle-states = <&LITTLE_CPU_SLEEP_0 &LITTLE_CPU_SLEEP_1 &CLUSTER_SLEEP_0>; - capacity-dmips-mhz = <607>; - dynamic-power-coefficient = <100>; + 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>, @@ -292,7 +292,7 @@ cpu-idle-states = <&BIG_CPU_SLEEP_0 &BIG_CPU_SLEEP_1 &CLUSTER_SLEEP_0>; - dynamic-power-coefficient = <396>; + 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>, @@ -314,7 +314,7 @@ cpu-idle-states = <&BIG_CPU_SLEEP_0 &BIG_CPU_SLEEP_1 &CLUSTER_SLEEP_0>; - dynamic-power-coefficient = <396>; + 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>, @@ -336,7 +336,7 @@ cpu-idle-states = <&BIG_CPU_SLEEP_0 &BIG_CPU_SLEEP_1 &CLUSTER_SLEEP_0>; - dynamic-power-coefficient = <396>; + 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>, @@ -358,7 +358,7 @@ cpu-idle-states = <&BIG_CPU_SLEEP_0 &BIG_CPU_SLEEP_1 &CLUSTER_SLEEP_0>; - dynamic-power-coefficient = <396>; + 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>, |