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Intel Puts New Haswell Code At Parity With Ivy Bridge

Intel

Published on 29 June 2012 10:52 AM EDT
Written by Michael Larabel in Intel
8 Comments

Intel OTC has published a set of 21 new patches for "Haswell" hardware enablement of their graphics core with their open-source Linux driver. With this latest round of patches, Intel is already saying that the Haswell Linux graphics support is nearly on par with Ivy Bridge when it comes to the kernel driver.

While Intel won't even be releasing their next-generation Haswell processors until H1'2013, for months already they have been putting out the open-source Linux code to get the new product support ready. Back in March is when Intel began releasing Haswell graphics driver code for Linux. They've already made a few code drops and have begun integrating this new code with the mainline Linux code-bases.

On Thursday there were 21 new Haswell patches released by Eugeni Dodonov of Intel's Open-Source Technology Center. These latest patches provide support for DisplayPort and Embedded DisplayPort (eDP) to accompany the existing HDMI and DVI outputs. Aside from expanding the Haswell connector support, these latest patches also enable RC6 power-savings support for Haswell.

There's still other Haswell Intel Linux DRM kernel driver patches to be released but Dodonov writes in his mailing list message that the kernel driver is already approaching parity with the level of Linux kernel support for the current-generation Ivy Bridge platform.
So in overall, with those patches, the status of Haswell support should be more or less on-par with Ivy Bridge kernel-wise. Most things that were working on IVB should be available on HSW - and if they don't work it is probably a bug, so please let me know about it.
Of course, in the months ahead Intel OTC developers still have a lot of work to do when it comes to optimizing performance, catching up with OpenGL support, maybe providing some level of OpenCL support, etc.

Outside of the graphics found on the Haswell die, Intel Linux engineers have also been working on enabling other areas of the chip, providing compiler support for new CPU extensions, and making other continued open-source enhancements for Linux. Intel has also been busy at enabling the Valley View Atom under Linux and last but not least has been putting out open-source code for Knights Corner.

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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