Radeon Driver Rewrite Only Has A Few Things Left
Written by Michael Larabel in Mesa on 23 March 2009 at 08:27 AM EDT. 24 Comments
Back in February we talked about the work that David Airlie is doing to rewrite the ATI Radeon driver for Mesa. Soon now it looks like this rewritten code may land in the mainline Mesa code-base once a few more items are addressed. The rewrite of this open-source ATI 3D support brings buffer management support for all supported ATI hardware, DRI2, Frame Buffer Objects, and all of this work is a prerequisite for having kernel memory management (such as with GEM).

David Airlie shares on his blog that he has been working on getting the rewritten ATI driver branch into a useful state and recently has been focusing on the FBO support under a DRI2 and kernel mode-setting enabled environment. Today he has reached a point where the Frame Buffer Object support has been merged into the radeon-rewrite branch.

Still left to be accomplished is fixing some hanging issues in the buffer management code for R100/200 hardware, broken depth buffer on the R200 series, incorrect drawing with the DRI2 single buffered rendering, and Piglit regression test running. There may also he a few other items to be addressed too prior to the code being merged.

After the code has been merged, Airlie plans to work on color buffer tiling under KMS/DRI2 (it will work right now with the DRI1 environment) and texture tiling. Hopefully we will see this Radeon rewrite merged into Mesa prior to Mesa 7.5, which is also the first release that will incorporate Gallium3D support.
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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 Twitter or contacted via MichaelLarabel.com.

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