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

CONFIG_SPUFS_MMAP (not configurable)

configname: CONFIG_SPUFS_MMAP

Linux Kernel Configuration
└─>Cell Broadband Engine options
└─>SPUFS_MMAP
In linux kernel since version 2.6.17 (release Date: 2006-06-17)