processing calls such as dma_alloc_from_contiguous().
This option does not affect warning and error messages.
+config CMA_DEBUGFS
+ bool "CMA debugfs interface"
+ depends on CMA && DEBUG_FS
+ help
+ Turns on the DebugFS interface for CMA.
+
config CMA_AREAS
int "Maximum count of the CMA areas"
depends on CMA