CONFIG_PPC_256K_PAGES is not available for thedefaultarchitecture x86.
Result is shown for architecture powerpc

256k page size (Requires non-standard binutils settings)

configname: CONFIG_PPC_256K_PAGES

Page size
└─>256k page size (Requires non-standard binutils settings)
In linux kernel since version 2.6.30 (release Date: 2009-06-09)  
Make the page size 256k.

The kernel will only be able to run applications that have been
compiled with '-zmax-page-size' set to 256K (the default is 64K) using
binutils later than 2.17.50.0.3, or by patching the ELF_MAXPAGESIZE
definition from 0x10000 to 0x40000 in older versions.