Loongson PCH PIC Controller

modulename: irq-loongson-pch-pic.ko

configname: CONFIG_LOONGSON_PCH_PIC

Linux Kernel Configuration
└─>Device Drivers
└─>IRQ chip support
└─>Loongson PCH PIC Controller
In linux kernel since version 5.1 (release Date: 2019-05-05)  
Support for the Loongson PCH PIC Controller.

source code:
drivers/irqchip/irq-loongson-pch-pic.c
selects
CONFIG_IRQ_DOMAIN_HIERARCHY
CONFIG_IRQ_FASTEOI_HIERARCHY_HANDLERS