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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.bz2 | |
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 |