CONFIG_SGI_IP30 is not available for thedefaultarchitecture x86.
Result is shown for architecture mips

SGI IP30 (Octane/Octane2)

configname: CONFIG_SGI_IP30

System type
└─>SGI IP30 (Octane/Octane2)
In linux kernel since version 5.1 (release Date: 2019-05-05)  
These are the SGI Octane and Octane2 graphics workstations. To
compile a Linux kernel that runs on these, say Y here.