DMA Contiguous Memory Allocator
modulename: dma-contiguous.ko
configname: CONFIG_DMA_CMA
Linux Kernel Configuration
└─>Device Drivers
└─>Generic Driver Options
└─>DMA Contiguous Memory Allocator
In linux kernel since version 3.10 (release Date: 2013-06-30)
This enables the Contiguous Memory Allocator which allows drivers
to allocate big physically-contiguous blocks of memory for use with
hardware components that do not support I/O map nor scatter-gather.
You can disable CMA by specifying "cma=0" on the kernel's command
line.
For more information see <include/linux/dma-contiguous.h>.
If unsure, say "n".
to allocate big physically-contiguous blocks of memory for use with
hardware components that do not support I/O map nor scatter-gather.
You can disable CMA by specifying "cma=0" on the kernel's command
line.
For more information see <include/linux/dma-contiguous.h>.
If unsure, say "n".