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
LINUX KERNEL --
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.

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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 10,000 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 OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter or contacted via MichaelLarabel.com.

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