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Wysocki" , Len Brown , Paul Walmsley , Palmer Dabbelt , Albert Ou , Viresh Kumar , Conor Dooley , Andrew Jones , Atish Kumar Patra , Anup Patel Subject: Re: [PATCH v1 -next 0/3] RISC-V: ACPI: Enable CPPC based cpufreq support Message-ID: References: <20240208034414.22579-1-sunilvl@ventanamicro.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240208034414.22579-1-sunilvl@ventanamicro.com> 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@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