[PATCH v1 -next 0/3] RISC-V: ACPI: Enable CPPC based cpufreq support

Drew Fustini drew at pdp7.com
Mon Mar 18 11:40:34 PDT 2024


On Thu, Feb 08, 2024 at 09:14:11AM +0530, Sunil V L wrote:
> This series enables the support for "Collaborative Processor Performance
> Control (CPPC) on ACPI based RISC-V platforms. It depends on the
> encoding of CPPC registers as defined in RISC-V FFH spec [2].
> 
> CPPC is described in the ACPI spec [1]. RISC-V FFH spec required to
> enable this, is available at [2].
> 
> [1] - https://uefi.org/specs/ACPI/6.5/08_Processor_Configuration_and_Control.html#collaborative-processor-performance-control
> [2] - https://github.com/riscv-non-isa/riscv-acpi-ffh/releases/download/v1.0.0/riscv-ffh.pdf
> 
> The series is based on the LPI support series.
> Based-on: 20240118062930.245937-1-sunilvl at ventanamicro.com
> (https://lore.kernel.org/lkml/20240118062930.245937-1-sunilvl@ventanamicro.com/)

Should the https://github.com/vlsunil/qemu/tree/lpi_exp branch also be
used for this CPPC series too?

Thanks,
Drew



More information about the linux-riscv mailing list