1*5d902ee5SPerry Yuan# SPDX-License-Identifier: GPL-2.0-only 2*5d902ee5SPerry Yuan# 3*5d902ee5SPerry Yuan# AMD Hardware Feedback Interface Driver 4*5d902ee5SPerry Yuan# 5*5d902ee5SPerry Yuan 6*5d902ee5SPerry Yuanconfig AMD_HFI 7*5d902ee5SPerry Yuan bool "AMD Hetero Core Hardware Feedback Driver" 8*5d902ee5SPerry Yuan depends on ACPI 9*5d902ee5SPerry Yuan depends on CPU_SUP_AMD 10*5d902ee5SPerry Yuan help 11*5d902ee5SPerry Yuan Select this option to enable the AMD Heterogeneous Core Hardware 12*5d902ee5SPerry Yuan Feedback Interface. If selected, hardware provides runtime thread 13*5d902ee5SPerry Yuan classification guidance to the operating system on the performance and 14*5d902ee5SPerry Yuan energy efficiency capabilities of each heterogeneous CPU core. These 15*5d902ee5SPerry Yuan capabilities may vary due to the inherent differences in the core types 16*5d902ee5SPerry Yuan and can also change as a result of variations in the operating 17*5d902ee5SPerry Yuan conditions of the system such as power and thermal limits. 18