DMA Mapping Subsystem Coming To Linux 4.13
Written by Michael Larabel in Linux Kernel on 6 July 2017 at 05:56 AM EDT. 7 Comments
Christoph Hellwig has called on Linus Torvalds to pull a new "dma-mapping" subsystem into the Linux 4.13 kernel.

The dma-mapping subsystem is intended to centralize all of the generic code around DMA mapping and to provide common helpers for different architecture code. So far this subsystem provides some helpers around DMA mapping errors and various other clean-ups around the DMA (Direct Memory Access) code.

In its present form for Linux 4.13, the dma-mapping subsystem is less than one thousand lines of code. More details via this pull request.
Related News
About The Author
Author picture

Michael Larabel is the principal author of and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via

Popular News This Week