Platform support for thermal management - Qualcomm Dragonwing Documentation

Supported Platforms

The following platforms are supported for thermal management on Qualcomm Linux:

Table: Temperature for hardware and software throttling for QCS6490/QCS5430

Mitigation Actions	Details
Software throttling	• NSP: 100°C - Frequency throttling • GPU: 105°C - Frequency throttling
Hardware throttling	• CPU: 95°C/105°C - Frequency throttling (105°C for 300-AA parts only) • NSP: 102°C - Frequency throttling
BCL	Learn more
ThermalD	Learn more
Software shutdown	118°C - Device shutdown
Hardware shutdown	120°C - Device shutdown

Table: Available CPU cooling devices to user space for QCS6490/QCS5430

Cooling devices	Description
`cpufreq-cpu<x>`	Cooling devices that are used to limit the maximum operating frequency of the CPU to control CPU temperature. `X` – Cluster CPU number `cpufreq-cpu0` – Silver cluster `cpufreq-cpu4` – Gold cluster `cpufreq-cpu7` – Prime cluster
`devfreq-3d00000.gpu`	Cooling devices that are used to limit the maximum operating frequency of the GPU to control GPU temperature.

See lemans.dtsi to review the kernel thermal rules.Table: Temperature for hardware and software throttling for IQ-9075

Mitigation Actions	Details
Software throttling	• NSP: 105°C - Frequency throttling • GPU: 105°C - Frequency throttling
Hardware throttling	• CPU: 110°C - Frequency throttling • NSP: 110°C - Frequency throttling
BCL	Not applicable
ThermalD	Learn more
Software shutdown	118°C - Device shutdown
Hardware shutdown	120°C - Device shutdown

Table: Available CPU cooling devices to user space for IQ-9075

Cooling devices	Description
`cpufreq-cpu\<x\>`	Cooling devices that are used to limit the maximum operating frequency of the CPU to control CPU temperature. `X` – CPU number varies from 1 to 7 `X` – Cluster CPU number `cpufreq-cpu0` – Cluster0 `cpufreq-cpu4` – Cluster1
`rproc\_cdsp:cdsp\_sw`	Cooling devices that are used to limit the maximum operating frequency of the NPU to control NPU temperature.
`devfreq-3d00000.gpu`	Cooling devices that are used to limit the maximum operating frequency of the GPU to control GPU temperature.

See monaco.dtsi to review the kernel thermal rules.Table: Temperature for hardware and software throttling for IQ-8275

Mitigation Actions	Details
Software throttling	• NSP: 105°C - Frequency throttling • GPU: 105°C - Frequency throttling
Hardware throttling	• CPU: 110°C - Frequency throttling • NSP: 110°C - Frequency throttling
BCL	Not applicable
ThermalD	Learn more
Software shutdown	118°C - Device shutdown
Hardware shutdown	120°C - Device shutdown

Note: The thermal rules for IQ-8275 will be enabled in the future release.Table: Available CPU cooling devices to user space for IQ-8275

Cooling devices	Description
`cpufreq-cpu\<x\>`	Cooling devices that are used to limit the maximum operating frequency of the CPU to control CPU temperature. `X` – CPU number varies from 0 to 7 `X` – Cluster CPU number `cpufreq-cpu0` – Gold cluster `cpufreq-cpu2` – Prime cluster `cpufreq-cpu4` – Silver cluster
`rproc\_cdsp:cdsp\_sw`	Cooling devices that are used to limit the maximum operating frequency of the NPU to control NPU temperature.
`devfreq-3d00000.gpu`	Cooling devices that are used to limit the maximum operating frequency of the GPU to control GPU temperature.

See talos.dtsi to review the kernel thermal rules.Table: Temperature for hardware and software throttling for IQ-615

Mitigation Actions	Details
Software throttling	• NSP: 105°C - Frequency throttling • GPU: 105°C - Frequency throttling
Hardware throttling	• CPU: 105°C - Frequency throttling • NSP: 102°C - Frequency throttling
BCL	Not applicable
ThermalD	Learn more
Software shutdown	115°C - Device shutdown
Hardware shutdown	120°C - Device shutdown

Note: The core idle injection functionality will be enabled in future release.Table: Available CPU cooling devices to user space for IQ-615

Cooling devices	Description
`cpufreq-cpu\<x\>`	Cooling devices that are used to limit the maximum operating frequency of the CPU to control CPU temperature. `X` – CPU number varies from 0 to 5 `X` – Cluster CPU number `cpufreq-cpu0` – Silver cluster `cpufreq-cpu4` – Gold cluster
`rproc\_cdsp:cdsp\_sw`	Cooling devices that are used to limit the maximum operating frequency of the NPU to control NPU temperature.
`devfreq-5000000.gpu`	Cooling devices that are used to limit the maximum operating frequency of the GPU to control GPU temperature.

See hamoa.dtsi to review the kernel thermal rules.Table: Temperature for hardware and software throttling for IQ-X7181/IQ-X5121

Mitigation Actions	Details
Software throttling	GPU: 105°C - Frequency throttling
Hardware throttling	• CPU: IL: 112°C, OL: 105°C - Frequency throttling • NSP: IL: 105°C - Frequency throttling
BCL
ThermalD	Learn more
Software shutdown	115°C - Device shutdown
Hardware shutdown	120°C - Device shutdown

Table: Available CPU cooling devices to user space for IQ-X7181/IQ-X5121

Cooling devices	Description
`cpufreq-cpu\<x\>`	Cooling devices that are used to limit the maximum operating frequency of the CPU to control CPU temperature. `X` – Cluster CPU number `cpufreq-cpu0` – Cluster0 `cpufreq-cpu4` – Cluster1 `cpufreq-cpu8` – Cluster2
`devfreq-3d00000.gpu`	Cooling devices that are used to limit the maximum operating frequency of the GPU to control GPU temperature.

See shikra.dtsi to review the kernel thermal rules.Table: Temperature for hardware and software throttling for CQ2390

Mitigation Actions	Details
Software throttling	GPU: 115°C - Frequency throttling
Hardware throttling	CPU: IL: 117°C, OL: 115°C - Frequency throttling
BCL
ThermalD	Learn more
Software shutdown	115°C - Device shutdown
Hardware shutdown	120°C - Device shutdown

Table: Available CPU cooling devices to user space for CQ2390

Cooling devices	Description
`cpufreq-cpu\<x\>`	Cooling devices that are used to limit the maximum operating frequency of the CPU to control CPU temperature. `X` – Cluster CPU number `cpufreq-cpu0` – Cluster0 `cpufreq-cpu3` – Cluster1