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Intel Driver Integrates BRW Assembler

Intel

Published on 30 July 2012 10:05 AM EDT
Written by Michael Larabel in Intel
14 Comments

The xf86-video-intel driver has picked up thousands of lines of new code today with the integration of a BRW assembler in order to compile shader programs on the fly and to remove inefficiencies and mistakes from current Intel shaders.

The thousands of lines of new code to the Intel X.Org driver comes once again via the prolific work of Chris Wilson has he continues to advance the SNA acceleration architecture.

This morning Chris first began by adding the BRW assembler that tacked on 5,785 lines of new code. The code for this assembler isn't all new but some of which was pulled from the Intel Mesa driver.
In order to construct programs on the fly to cater for the combinatorial number of possible shaders, we need an assembler, whilst also taking the opportunity to remove some of the inefficiencies and mistakes from the current shaders.
Following that he had another commit that added more than one thousand lines of new code that made SF and WM kernels compile using the new assembler. After that? Several more commits, this time to allow for compiling basic kernels at run-time when using SNA acceleration. The basic run-time compilation of kernels is for Gen 4/5/6/7/7 back-ends with Sandy Bridge New Acceleration.

The latest Intel driver commits can be viewed via CGit.

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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