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

ARM Publishes New Universal Linux Graphics Driver

Hardware

Published on 21 May 2012 05:36 AM EDT
Written by Michael Larabel in Hardware
28 Comments

ARM has published a new open-source X.Org DDX Linux graphics driver while working to enable support for their next-generation ARM Mali T6xx graphics core.

Tom Cooksey explained in a mailing list message this morning that the Mali T6xx approach is nearly identical to how the Texas Instruments OMAP graphics are handled. They're using a kernel DRM driver to manage the display controller via kernel mode-setting, the KMS driver handles the basic buffers with GEM support, etc. The client also uses the new PRIME ioctls for exporting the GEM buffer.

For the ARM Mali T6xx Linux enablement, they are only using a DRM driver for driving the display controller while they have their own separate kernel driver for poking and handling the GPU itself. ARM though isn't being too open-source friendly in terms of a fully open stack or providing proper documentation.

With most ARM SoC vendors sharing common designs (except for Qualcomm and NVIDIA), the ARM Mali developers ended up hacking the xf86-video-omap DDX driver into a new xf86-video-armsoc driver. This new driver works with the ARM Mali. This new driver is meant to be universal (similar to xf86-video-modesetting) with the device-specific bits being in the respective DRM driver and OpenGLES/EGL library. ARM's trying to make this new driver universal for most of these ARM SoCs and they intend to make it work on some Samsung Exynos hardware and other development platforms going forward.

ARM says, "We are actively developing this driver and will be doing so in a public git repository hosted by Linaro. We will not be maintaining any private repository behind ARM's firewall or anything like that - you'll see what we see."

Originally they were looking to base this universal ARM SoC driver on the KMS-universal xf86-video-modesetting DDX driver, but in the end they ended up basing it upon the OMAP DDX driver. They are working towards 2D hardware support with the X.Org driver but initially that won't be too unified. Some of the ways they are thinking about handling the 2D operations have also been criticized already by upstream X.Org developers.

Find out more in this mailing list post or by looking through the Linaro Git repository.

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. CompuLab Intense-PC2: An Excellent, Fanless, Mini PC Powered By Intel's i7 Haswell
  2. From The Atom 330 To Haswell ULT: Intel Linux Performance Benchmarks
  3. AMD Radeon R9 285 Tonga Performance On Linux
  4. Apotop Wi-Copy
Latest Linux Articles
  1. AMD Moves Forward With Unified Linux Driver Strategy, New Kernel Driver
  2. MSI: Update Your BIOS From The Linux Desktop
  3. NVIDIA vs. AMD 2D Linux Drivers: Catalyst Is Getting Quite Good At 2D
  4. 15-Way GPU Comparison With Mesa 10.3 + Linux 3.17
Latest Linux News
  1. Ubuntu 16.04 Might Be The Distribution's Last 32-Bit Release
  2. Imagination Releases Full ISA Documentation For PowerVR Rogue GPUs
  3. Features GNOME Developers Want In The Linux Kernel
  4. GTK+ Gains Experimental Overlay Scrollbars
  5. Phoronix Test Suite 5.4 M3 Is Another Hearty Update
  6. GParted 0.20 Improves Btrfs Support
  7. EXT4 In Linux 3.18 Has Clean-ups, Bug Fixes
  8. Emacs 24.4 Has Built-In Web Browser, Improved Multi-Monitor Support
  9. NVIDIA's NVPTX Support For GCC Is Close To Being Merged
  10. KDE's KWin On Wayland Begins Using Libinput
Latest Forum Discussions
  1. HOPE: The Ease Of Python With The Speed Of C++
  2. Users/Developers Threatening Fork Of Debian GNU/Linux
  3. Bye bye BSD, Hello Linux: A Sys Admin's Story
  4. Updated and Optimized Ubuntu Free Graphics Drivers
  5. NVIDIA Presents Its Driver Plans To Support Mir/Wayland & KMS On Linux
  6. AMD Is Restructuring Again, Losing 7% Of Employees
  7. Open-Source AMD Fusion E-350 Support Takes A Dive
  8. Upgrade to Kaveri, very slow VDPAU performance