Articles & Reviews
News Archive
Forums
Premium
Contact
Categories

Computers Display Drivers Graphics Cards Linux Gaming Memory Motherboards Processors Software Storage Operating Systems Peripherals

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.

7 Comments

Linux 6.9-rc5 Picking Up Fixes For Intel FRED, BHI & GFNI/VAES Checks

Linux 6.10 Preps A Kernel Panic Screen - Sort Of A "Blue Screen of Death"

Linus Torvalds Injects Tabs To Thwart Kconfig Parsers Not Correctly Handling Them

Linux 6.9-rc4 Brings More Bcachefs Fixes, Native BHI Mitigation

Linux 6.10 To Account For NUMA Node When Allocating Per-CPU Cpumasks

About The Author

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 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 OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via MichaelLarabel.com.