CONFIG_FPU is not available for thedefaultarchitecture x86.
Result is shown for architecture nds32
FPU support
modulename: fpu.ko
configname: CONFIG_FPU
Linux Kernel Configuration
└─>FPU support
In linux kernel since version 2.6.12
If FPU ISA is used in user space, this configuration shall be Y to
enable required support in kernel such as fpu context switch and
fpu exception handler.
If no FPU ISA is used in user space, say N.
enable required support in kernel such as fpu context switch and
fpu exception handler.
If no FPU ISA is used in user space, say N.