Tiling Is Being Worked On For The Open Evergreen Driver
Written by Michael Larabel in Mesa on 31 January 2011 at 08:47 PM EST. 9 Comments
While the Radeon HD 6000 series is AMD's latest generation of graphics processor, and has initial open-source support available as of earlier this month, the open-source Linux GPU driver support isn't yet complete for the older Radeon HD 5000 "Evergreen" series and generations even older than that. One of the features that has been lacking for Evergreen is tiling support within the ATI Gallium3D "R600g" driver for the HD 5000 series while it is available for the R600 ASICs and earlier. Evergreen tiling support though is now being worked on, which should deliver a performance boost once fully implemented for this hardware.

David Airlie pushed out a commit this evening to the mainline Mesa tree (via CGit) that starts "looking" at Evergreen tiling. It adds in the need ioctl interface and some other early work basically bringing it to the R600 position at this point. 2D tiling has yet to be addressed.

Hopefully by the time Mesa 7.11 rolls around in a couple of months he support will be ready.
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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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