CONFIG_NOT_COHERENT_CACHE is not available for thedefaultarchitecture x86.
Result is shown for architecture ppc
Turn off Cache Coherency
modulename: dma-mapping.ko
configname: CONFIG_NOT_COHERENT_CACHE
Linux/PowerPC Kernel Configuration
└─>Platform options
└─>Set bridge options
└─>Turn off Cache Coherency
In linux kernel since version 2.6.15 (release Date: 2006-01-02)
Some 64x60 bridges lock up when trying to enforce cache coherency.
When this option is selected, cache coherency will be turned off.
Note that this can cause other problems (e.g., stale data being
speculatively loaded via a cached mapping). Use at your own risk.
When this option is selected, cache coherency will be turned off.
Note that this can cause other problems (e.g., stale data being
speculatively loaded via a cached mapping). Use at your own risk.