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Getting KMS Ready For Linux 2.6.29 Kernel

X.Org

Published on 30 October 2008 06:10 PM EDT
Written by Michael Larabel in X.Org
1 Comment

It will be a while before the Linux 2.6.29 kernel merge window opens, considering we are just at the second release candidate for Linux 2.6.28, but Intel's Jesse Barnes is beginning to prepare the patches for kernel-based mode-setting support.

There's still quite a bit of work left before kernel mode-setting will be stable, but the patches can be found on the DRI development mailing list. These patches need to sit atop the recent GTT (Graphics Translation Table) mapping and EXA pixmap management patches.

Jesse has also sent along the Radeon driver that adds DRM/KMS mode-setting support (mailing list message), but it's currently out of date.

For more information on kernel mode-setting support for Linux, checkout A Preview of Kernel-based Mode-Setting and The State of Kernel Mode-Setting. Additionally, you may be interested in Red Hat's Plymouth and Fedora 10, which are KMS friendly.

Introduced in the Linux 2.6.28 kernel is GEM support for providing a kernel memory manager to the X.Org graphics drivers, which is a pre-requisite for kernel mode-setting. Intel had developed the Graphics Execution Manager after having a falling out over Tungsten's TTM.

Also available is the patches for core KMS support and the Intel i915 KMS driver.

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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