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| author | Ashwin Chaugule <ashwin.chaugule@linaro.org> | 2015-10-02 10:01:19 -0400 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2015-10-12 22:49:55 +0200 |
| commit | 337aadff8e4567e39669e07d9a88b789d78458b5 (patch) | |
| tree | 98f6e0e6d83f061ef776540ff7bfa4d224b2405d /drivers/acpi/Makefile | |
| parent | 25cb62b76430a91cc6195f902e61c2cb84ade622 (diff) | |
| download | linux-337aadff8e4567e39669e07d9a88b789d78458b5.tar.gz | |
ACPI: Introduce CPU performance controls using CPPC
CPPC stands for Collaborative Processor Performance Controls and is defined in the ACPI v5.0+ spec. It describes CPU performance controls on an abstract and continuous scale allowing the platform (e.g. remote power processor) to flexibly optimize CPU performance with its knowledge of power budgets and other architecture specific knowledge. This patch adds a shim which exports commonly used functions to get and set CPPC specific controls for each CPU. This enables CPUFreq drivers to gather per CPU performance data and use with exisiting governors or even allows for customized governors which are implemented inside CPUFreq drivers. Signed-off-by: Ashwin Chaugule <ashwin.chaugule@linaro.org> Reviewed-by: Al Stone <al.stone@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/Makefile')
| -rw-r--r-- | drivers/acpi/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile index b5e7cd8a9c71..675eaf337178 100644 --- a/drivers/acpi/Makefile +++ b/drivers/acpi/Makefile @@ -78,6 +78,7 @@ obj-$(CONFIG_ACPI_HED) += hed.o obj-$(CONFIG_ACPI_EC_DEBUGFS) += ec_sys.o obj-$(CONFIG_ACPI_CUSTOM_METHOD)+= custom_method.o obj-$(CONFIG_ACPI_BGRT) += bgrt.o +obj-$(CONFIG_ACPI_CPPC_LIB) += cppc_acpi.o # processor has its own "processor." module_param namespace processor-y := processor_driver.o |