Intel(R) Speed Select Technology interface drivers

modulename: isst_if_common.ko

and/or

isst_if_mmio.ko

and/or

isst_if_mbox_pci.ko

and/or

isst_if_mbox_msr.ko

configname: CONFIG_INTEL_SPEED_SELECT_INTERFACE

Linux Kernel Configuration
└─>Device Drivers
└─>X86 Platform Specific Device Drivers
└─>PCI support
└─>Intel Speed Select Technology interface support
└─>Intel(R) Speed Select Technology interface drivers
In linux kernel since version 5.1 (release Date: 2019-05-05)  
This config enables the Intel(R) Speed Select Technology interface
drivers. The Intel(R) speed select technology features are non
architectural and only supported on specific Xeon(R) servers.
These drivers provide interface to directly communicate with hardware
via MMIO and Mail boxes to enumerate and control all the speed select
features.

Enable this config, if there is a need to enable and control the
Intel(R) Speed Select Technology features from the user space.

source code: