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Radeon GPU Recovery To Hit Linux 2.6.34 Kernel

Linux Kernel

Published on 25 March 2010 08:47 AM EDT
Written by Michael Larabel in Linux Kernel
26 Comments

David Airlie has just asked Linus to pull in his latest DRM branch for the Linux 2.6.34 kernel. This branch provides fixes to the DRM core, Nouveau, and Radeon KMS. The new Radeon DRM code brings fixes, but it also brings a clean-up to the ASIC tables and GPU recovery support.

Jerome Glisse had been working on Radeon GPU recovery support for some time, which should allow the graphics card / driver to (ideally) recover itself when it's locked-up. This new feature is coming after the Linux 2.6.34 kernel merge window has already been closed, but hopefully it will still be pulled by Linus Torvalds. Linus may not be happy about this code -- judging from his tirades in the past when David Airlie has called for larger pull requests later into the development cycle. However, this GPU recovery support should only be hit when the GPU is indeed locked up and it should not exacerbate any lock-ups.

Also coming as part of this pull request is working ATI R700 series HDMI KMS audio support.

This newest DRM pull request for the Linux 2.6.34 kernel can be found on the DRI mailing list. The Linux 2.6.34 kernel already features the GPU hybrid switching support, initial Evergreen KMS support for the Radeon HD 5000 series (but that goes without any form of 2D/3D/video acceleration support), hardware I2C engine support for Radeon DRM, a Nouveau interface break, Intel Sandy Bridge support, the R600 command stream checker, and various other improvements to the open-source Linux graphics stack.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
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