RadeonHD CS Driver Gets EXA Love
Written by Michael Larabel in AMD on 4 August 2008 at 05:30 PM EDT. 10 Comments
For the past two weeks we've been talking about the RadeonHD Command Submission branch that changes all of the driver's command sequencing calls into inline functions in order to offer dramatically improved performance. This branch of the xf86-video-radeonhd driver also presents a command submission infrastructure using the GPU's command processor (CP) for the R500 (Radeon X1000) series using MMIO (Memory Mapped I/O).

Last week EXA improvements were added to the CS branch of this open-source ATI R500+ driver by means of hardware-accelerated downloading and uploading from the screen. Now committed to the development branch for this driver is acceleration for EXA Composite and Render extensions. Additionally, a few other improvements and other work (setup code for the 3D engine) was committed today.

If you're interested in checking out this latest open-source work checkout git://anongit.freedesktop.org/git/xorg/driver/xf86-video-radeonhd and then proceed to checkout (using git) the origin/CS branch. TexturedVideo code for the RadeonHD driver is expected this week and there may be a new official RadeonHD driver release later this month.
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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 10,000 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 or contacted via MichaelLarabel.com.

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