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I know we have acpi_cpufreq driver and intel_psteate driver to use.

However, I think intel_pstate driver is for Intel.

What's the CPU frequency driver for AMD?

Any introduction ( ex: governors ) for AMD CPU freq driver?

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For current AMD CPUs, the appropriate driver is the ACPI driver. K6, K7, and K8 CPUs have specific drivers, but K10 and later are handled by the “generic” ACPI driver. There is additional support for frequency sensitivity feedback on Jaguar/Puma and later low-power CPUs, available in the amd-freq-sensitivity module.

The kernel contains documentation on its CPU performance scaling features.

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