CONFIG_ARC_IRQ3_LV2 is not available for thedefaultarchitecture x86.
Result is shown for architecture arc

CONFIG_ARC_IRQ3_LV2 (not configurable)

configname: CONFIG_ARC_IRQ3_LV2

Linux Kernel Configuration
└─>ARC Architecture Configuration
└─>ARC CPU Configuration
└─>ARC_IRQ3_LV2
In linux kernel since version 3.1 (release Date: 2011-10-24)