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

CONFIG_OWN_DMA (not configurable)

configname: CONFIG_OWN_DMA

Linux/MIPS Kernel Configuration
└─>OWN_DMA
In linux kernel since version 2.6.15 (release Date: 2006-01-02)  
is depended by
CONFIG_SGI_IP32