[TGL] Enable intel_idle driver for Tiger Lake

[quanxian]

Description
Need to enable intel_idle for the Tiger Lake product line in mainline kernel.

This allows for finer-grain C-state control (using all supported platform MWAIT hints) than ACPI C-states. The intel_idle driver uses a different approach (MWAIT calls from kernel driver) than Windows (ACPI calls from kernel driver).

Target Release: 20.10
Target Kernel: 5.6

[quanxian (quanxian-wang)]

All the patches are shipped in 5.6-rc1.

bc94638886ab21f8247d3f7f39573d3feb7d8284("ACPI: processor: Export function to claim _CST control")

987c785319b99e32602f7f86cfae3cf9b81e402b("ACPI: processor: Introduce acpi_processor_evaluate_cst()")

aa659a3fca79abd9a3ca3ddc535db631b01c9a02("ACPI: processor: Clean up acpi_processor_evaluate_cst()")

239ed06d0eefc4ee351af69bd64742ada56c4bdb("ACPI: processor: Make ACPI_PROCESSOR_CSTATE depend on ACPI_PROCESSOR")

77fb4e0a559a960eb36d0b2c50c781c5492577eb("ACPI: processor: Export acpi_processor_evaluate_cst()")

9f3d6daf61e5156139cd05643f7f1c2a9b7b49b0("intel_idle: Refactor intel_idle_cpuidle_driver_init()")

18734958e9bfbc055805d110a38dc76307eba742("intel_idle: Use ACPI _CST for processor models without C-state tables")

75a80267410e38ab76c4ceb39753f96d72113781("cpuidle: Allow idle states to be disabled by default")

bff8e60a86f4960133f90ad9add9adeb082b8154("intel_idle: Allow ACPI _CST to be used for selected known processors")

4ec32d9e8e5b6d6eb491eeee3938665d8a2388fa("intel_idle: Add module parameter to prevent ACPI _CST from being used")

e6d4f08a677654385869ba0c39d7c9ceec47e5c5("intel_idle: Use ACPI _CST on server systems")

a3299182216397a0b943d2549d1997f4eba2bdd2("Documentation: admin-guide: PM: Add intel_idle document")