CONFIG_ACPI_PCC: ACPI PCC Address Space

General informations

The Linux kernel configuration item CONFIG_ACPI_PCC:

• prompt: ACPI PCC Address Space
• type: bool
• depends on: CONFIG_PCC
• defined in drivers/acpi/Kconfig
• found in Linux kernels: 5.17–5.19, 6.0–6.8, 6.9-rc+HEAD

Help text

The PCC Address Space also referred as PCC Operation Region pertains to the region of PCC subspace that succeeds the PCC signature.

The PCC Operation Region works in conjunction with the PCC Table (Platform Communications Channel Table). PCC subspaces that are marked for use as PCC Operation Regions must not be used as PCC subspaces for the standard ACPI features such as CPPC, RASF, PDTT and MPST. These standard features must always use the PCC Table instead.

Enable this feature if you want to set up and install the PCC Address Space handler to handle PCC OpRegion in the firmware.

Hardware

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This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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