Intel P-Unit IPC Driver

modulename: intel_punit_ipc.ko

configname: CONFIG_INTEL_PUNIT_IPC

Linux Kernel Configuration
└─>Device Drivers
└─>X86 Platform Specific Device Drivers
└─>Intel P-Unit IPC Driver
In linux kernel since version 3.10 (release Date: 2013-06-30)  
This driver provides support for Intel P-Unit Mailbox IPC mechanism,
which is used to bridge the communications between kernel and P-Unit.

source code:
drivers/platform/x86/intel/