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 Linux Hardware Reviews
  1. Trying The Configurable 45 Watt TDP With AMD's A10-7800 / A6-7400K
  2. Sumo's Omni Gets Reloaded
  3. AMD A10-7800 & A6-7400K APUs Run Great On Linux
  4. Radeon Gallium3D Is Running Increasingly Well Against AMD's Catalyst Driver
Latest Linux Articles
  1. Intel's Latest Linux Graphics Code Competes Against OS X 10.9
  2. Intel Sandy Bridge Gets A Surprise Boost From Linux 3.17
  3. Open-Source Radeon Graphics Have Some Improvements On Linux 3.17
  4. CPUFreq Scaling Tests With AMD's Kaveri On Linux 3.16
Latest Linux News
  1. GNOME 3.14 Beta Released
  2. Mesa 10.3 Branched & RC1 Released, Mesa 10.4 On Master
  3. Intel Sandy Bridge Gains On Linux 3.17 Extend Beyond Graphics
  4. LinuxCon: What's Going On With Fedora.Next
  5. Canonical Joined The Khronos Group To Help Mir/Wayland Drivers
  6. EFL 1.11 Is A Big Milestone For Enlightenment Users
  7. DirectFB Updates GTK3 Support, Working Towards DirectFB 1.8
  8. Userptr Support Set For AMD Radeon GPUs In Linux 3.18
  9. NVIDIA Releases CUDA 6.5 As A Huge Update
  10. GNOME 3.14 Beta Makes GLSL Optional, Supports Wayland Gesture/Touch Events
Latest Forum Discussions
  1. Systemd 216 Piles On More Features, Aims For New User-Space VT
  2. Updated and Optimized Ubuntu Free Graphics Drivers
  3. AMD Offers Mantle For OpenGL-Next, Pushes Mantle To Workstations
  4. ATI CrossFire Does Not Support On This Platform When Enabling (Ubuntu Lucid)
  5. Dead Island for Linux (?)
  6. The dangers of Linux kernel development
  7. Remote gui not accessible in Phoronix Test Suite 5.2
  8. Next-Gen OpenGL To Be Announced Next Month