1. Computers
  2. Display Drivers
  3. Graphics Cards
  4. Memory
  5. Motherboards
  6. Processors
  7. Software
  8. Storage
  9. Operating Systems


Facebook RSS Twitter Twitter Google Plus


Phoronix Test Suite

OpenBenchmarking.org

There Might Be A New Linux DRM Driver

Linux Kernel

Published on 03 March 2012 07:30 AM EST
Written by Michael Larabel in Linux Kernel
2 Comments

An interesting mailing list question was posed yesterday to DRM developers, which raises the question there might be a new Linux DRM kernel driver being hacked.

From Sascha Hauer, a developer at the German-based Pengutronix, wrote an email entitled libdrm and platform devices? It was quite a simple question, but in the email he mentioned he was working on a DRM driver, which is the interesting part. "I have a drm device on the platform bus, similar to the exynos driver. right now libdrm (at least the tests included in libdrm) refuses to open the device because i915, nouveau, radeon and vmwgfx is all they know about. Looking at the libdrm code it is not obvious how to fix this (except for adding "exynos", "mydevice", "myotherdevice" to the module table which seems awkward and not very futureproof)."

So what is "mydevice" and "myotherdevice" from his message? Pengutronix mostly works on ARM hardware and they describe themselves as providing "Linux solutions for science and industry." Last year this same German developer published a new open-source KMS driver that was for the Freescale i.MX51 and i.MX53 SoCs. These ARM SoCs aren't too popular, but are found in some Google Chrome OS netbooks. That driver from last year didn't have proper in-kernel memory management (GEM/TTM) nor was it accompanied by an open-source user-space driver (DDX and Mesa/Gallium3D). There was also other missing features to this driver from last year.

This yet-to-be-announced DRM driver from Pengutronix could be a re-hashed version of their Freescale DRM driver from last year (though it's a bit late to be worrying about libdrm with it), which has yet to make it into the mainline Linux kernel, or it might be something entirely new. It's been a while since hearing anything about the Freescale i.MX51/i.MX53 DRM driver and even when it was launched it wasn't too exciting, so hopefully this will be some new open-source driver initiative to hear about in the near future.

These patches published by Sascha Hauer against the generic xf86-video-modesetting driver would also seem to indicate that there isn't yet a DDX driver for the new KMS-enabled hardware. Additionally, these patches make the generic mode-setting DDX driver work with non-PCI devices (i.e. ARM hardware).

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 .
Latest Articles & Reviews
  1. Samsung 850 EVO SSD Linux Benchmarks
  2. Kubuntu 15.04 Is Turning Out Quite Nice, Good Way To Try Out The Latest KDE
  3. 5-Way Linux Distribution Comparison On The Core i3 NUC
  4. OCZ ARC 100 Linux SSD Benchmarks
  5. Lenovo ThinkPad X1 Carbon Works Great As A Linux Ultrabook
  6. Transcend SSD370 256GB
Latest Linux News
  1. AMD Will Release Mantle Programming Guide, API Reference This Month
  2. Unreal Engine Made Free By Epic Games
  3. Qt 5.5 Alpha Is Getting Close, But Still Behind Schedule
  4. OpenBSD Sponsors Work For Better Browser Security
  5. Improved ODF Reading Support Comes To KDE's Calligra
  6. Another Step Closer On The New Linux Benchmarking Test Farm
  7. Confirmed: Vulkan Is The Next-Gen Graphics API
  8. Kdenlive Ported To Qt5/KF5, Coming To KDE Applications 15.04
  9. HTC & Valve Partnered Up For The Steam VR Headset
  10. 8cc: A Small C11 Compiler
Most Viewed News This Week
  1. More Proof That Allwinner Is Violating The GPL
  2. The Tremendous Features Of Fedora 22
  3. Krita 2.9 Released, Their Biggest Release Ever
  4. A Single UEFI Executable With The Linux Kernel, Initrd & Command Line
  5. LLVM 3.6 & Clang 3.6 Deliver More Features, Complete C++14 Support
  6. Firefox 36 Brings Full HTTP/2 Support
  7. RISC OS Now Works With The Raspberry Pi 2
  8. Android-Based Console OS Available For Download
%%CLICK_URL_UNESC%%