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| author | Sudeep Holla <sudeep.holla@arm.com> | 2022-11-10 14:45:04 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2022-11-14 19:09:07 +0100 |
| commit | e81c782c16844dc758a784899c2fe5260386211b (patch) | |
| tree | 8ca58e1702340b4392e04ced892cf057fedab381 /drivers/acpi/Kconfig | |
| parent | Linux 6.1-rc5 (diff) | |
| download | linux-e81c782c16844dc758a784899c2fe5260386211b.tar.xz linux-e81c782c16844dc758a784899c2fe5260386211b.zip | |
ACPI: Implement a generic FFH Opregion handler
This registers the FFH OpRegion handler before ACPI tables are
loaded. The platform support for the same is checked via Platform-Wide
OSPM Capabilities(OSC) before registering the OpRegion handler.
It relies on the special context data passed to offset and the length.
However the interpretation of the values is platform/architecture
specific. This generic handler just passed all the information to
the platform/architecture specific callback. It also implements the
default callbacks which return as not supported.
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/Kconfig')
| -rw-r--r-- | drivers/acpi/Kconfig | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index 473241b5193f..06508674a30b 100644 --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -564,6 +564,16 @@ config ACPI_PCC Enable this feature if you want to set up and install the PCC Address Space handler to handle PCC OpRegion in the firmware. +config ACPI_FFH + bool "ACPI FFH Address Space" + default n + help + The FFH(Fixed Function Hardware) Address Space also referred as FFH + Operation Region allows to define platform specific opregion. + + Enable this feature if you want to set up and install the FFH Address + Space handler to handle FFH OpRegion in the firmware. + source "drivers/acpi/pmic/Kconfig" config ACPI_VIOT |