default or selected kernelversion does not have config value CONFIG_BLK_DEV_IDE_SWARM.
Result is shown for kernelversion 5.19-rc1

IDE for Sibyte evaluation boards

modulename: swarm.ko

configname: CONFIG_BLK_DEV_IDE_SWARM

Linux Kernel Configuration
└─>Device Drivers
└─>ATA/ATAPI/MFM/RLL support
└─>IDE for Sibyte evaluation boards
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
source code:
drivers/ide/mips/swarm.c