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

CONFIG_PPC_INDIRECT_PIO (not configurable)

configname: CONFIG_PPC_INDIRECT_PIO

Linux Kernel Configuration
└─>Platform support
└─>PPC_INDIRECT_PIO
In linux kernel since version 3 (release Date: 2011-07-21)  

is depended by
CONFIG_PPC_ISERIES