The Linux 3.3 DRM Pull Is Heavy On Enhancements
Written by Michael Larabel in Linux Kernel on 10 January 2012 at 10:05 PM EST. 4 Comments
There's more Linux 3.3 kernel news to report... This time it's the DRM pull request officially going in (and being accepted) as it's heavy on enhancements for open-source graphics drivers.

Last week I wrote about What's Coming For The Linux 3.3 Kernel DRM Pull, but now David Airlie officially called upon Linus to pull his Git tree to provide the Direct Rendering Manager (DRM) update during the Linux 3.3 merge window. This comes after the related DMA-BUF code was pulled into the kernel.

The previous article on the 3.3 DRM pretty much covers all the highlights, but again the key changes for this next kernel release include:

- DRM plane support for exposing overlays (currently for the Intel driver and some ARM SoC drivers).

- EDID support for CEA modes in the core DRM code.

- Support for TTM within Xen virtualization for this GPU kernel memory management method.

- Radeon VM support in the ultimate road to AMD Radeon HD 7000 series open-source support. VM support was also added for the Radeon HD 6900 "Cayman" series.

- Radeon Semaphore support.

- Radeon Evergreen HDMI audio support.

- Nouveau HDMI audio support.

- Nouveau power management fixes.

- Improved Nouveau NVDx Fermi support.

- The Intel GMA500 "Poulsbo" driver has left the kernel staging area and is now part of the mainline DRM area.

- Many Samsung Exynos driver changes including HDMI output support, power management, and plane support.

- The Intel driver has better HDMI ELD support.

- Stream-out support for Intel Ivy Bridge (Gen7) hardware.

The DRM merge for 3.3-rc1 can be found on the mailing list. In that message, David has also criticized the Intel guys for having "process issues again." David is now "sort of tempted to just drop anything more from them for this cycle, to give them time to sort themselves out for the next one."
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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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