CPPC v4 Support Being Worked On NVIDIA For The Linux ACPI Driver
NVIDIA engineers are working on adding CPPC v4 support to the acpi_cppc Linux driver following the release of the ACPI 6.6 specification, which enhances OS-based CPU performance management through an abstract performance scale. The update includes two new optional fields: OSPM Nominal Performance and Resource Priority, though full parsing for the latter is not yet implemented. The patch series has been submitted for review on the Linux kernel mailing list, with potential use in NVIDIA's upcoming Vera CPUs.
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CPPC v4 Support Being Worked On NVIDIA For The Linux ACPI Driver Written by Michael Larabel in Standards on 30 April 2026 at 05:45 AM EDT. Add A Comment Last year with the ACPI 6.6 specification release came revised Collaborative Processor Performance Control (CPPC) support for enhancing the capabilities around this standard for OS management of the performance of CPU cores using an abstract performance scale. That CPPC v4 support is now being worked on for the acpi_cppc Linux driver by NVIDIA engineers. Multiple processor vendors continue leveraging ACPI CPPC for performance management. For those CPU vendors using the generic CPPC Linux driver, CPPC v4 support is being wired up by NVIDIA.
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