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| author | Palmer Dabbelt <palmer@rivosinc.com> | 2024-03-19 18:30:58 -0700 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@rivosinc.com> | 2024-03-20 08:56:09 -0700 |
| commit | 028d1aee1f0768f96a40871e2e33727a10ff146f (patch) | |
| tree | 3e2780eba9c11b3cadcba97c58918fcaddf19e17 /arch | |
| parent | 01261e24cfab69c65043e1e61168348ae23a64c2 (diff) | |
| parent | 282b9df4e9603bbb5c9cbf3ea60bc393287e8a2f (diff) | |
| download | linux-028d1aee1f0768f96a40871e2e33727a10ff146f.tar.gz | |
Merge patch series "RISC-V: ACPI: Enable CPPC based cpufreq support"
Sunil V L <sunilvl@ventanamicro.com> says:
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
* b4-shazam-merge:
RISC-V: defconfig: Enable CONFIG_ACPI_CPPC_CPUFREQ
cpufreq: Move CPPC configs to common Kconfig and add RISC-V
ACPI: RISC-V: Add CPPC driver
Link: https://lore.kernel.org/r/20240208034414.22579-1-sunilvl@ventanamicro.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/riscv/configs/defconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/riscv/configs/defconfig b/arch/riscv/configs/defconfig index 89a009a580fe6..fc0ec2ee13bc2 100644 --- a/arch/riscv/configs/defconfig +++ b/arch/riscv/configs/defconfig @@ -44,6 +44,7 @@ CONFIG_CPU_FREQ_GOV_USERSPACE=y CONFIG_CPU_FREQ_GOV_ONDEMAND=y CONFIG_CPU_FREQ_GOV_CONSERVATIVE=m CONFIG_CPUFREQ_DT=y +CONFIG_ACPI_CPPC_CPUFREQ=m CONFIG_VIRTUALIZATION=y CONFIG_KVM=m CONFIG_ACPI=y |