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 Benchmarking Platform
Phoromatic Test Orchestration

Lima GPU Driver Faces Changes, Advancements

Free Software

Published on 07 December 2012 01:50 PM EST
Written by Michael Larabel in Free Software
9 Comments

There are significant driver changes to report on for the reverse-engineered open-source Lima graphics driver project for providing ARM Mali graphics support.

The open-source Lima driver project was first announced on Phoronix one year ago and then more broadly announced during the FOSDEM conference in February from Brussels. The Lima driver project was spearheaded by Luc Verhaegen while being employed by the Codethink consulting company. The Lima driver has been developed via reverse-engineering and without the support of ARM Holdings while much progress has been made this year.

In an email this week to Phoronix, Verhaegen shared some advancements made to this ARM Mali graphics driver. Verhaegen started off by sharing that he's no longer employed by Codethink. "Since codethink further increased its focus on baserock, and I have been rather unhappy with the lack of progress on the lima driver, codethink has decided to no longer employ me. I now have a bit of time available to finally push lima where it should've gone at the beginning of the year." (Baserock is Codethink's open-source project for building embedded systems with Linux.)

As far as the progress that Luc has now made independent of Codethink, "First, the lima driver was brought up on a proper GNU/Linux, with a now useful build system, and it is now running on the r3p0 mali kernel drivers. Then the hackish demo code from May was restructured and cleaned up, and a proper Creative Commons licensed companion cube was put in place (as the author of the cube used at linuxtag could no longer be traced)."

He has shared a video of this Lima spinning cube on YouTube. The video is showing Lima running on 720p, with the cube spinning at the display refresh rate, but it would spin at 91fps when not synced. The cube itself is 4052 triangles, and a 512x512 texture, and is part of the Limare tests.

In the email to Phoronix, Luc also described the hardware configuration for this Lima test. "All of this is running on an Allwinner A10, probably the most free ARM SoC out there at this time. This up-to 1.5GHz single core Cortex A8 comes with a Mali400MP1 and is very cheap and can therefor be found in many cheap chinese tablets, set-top-boxes and the mk802 "smart-tv-stick". There are even two boards being sold which have full schematics available, namely the cubieboard and the olimex Olinuxino. The A10 is unbrickable, and there is no massive non-free blob pulling the strings in the background like on the Broadcom SoCs."

Luc also shared some of the future work being planned for this driver. "As for lima, prepare for a flurry of development in the next few months. Connor Abbott is still beavering away at the shader compiler for the mad (but fast!) Mali200/400 vertex shader. There is one big milestone which I want to reach still before I look into bringing up an actual driver for this hardware."

While still running on the ARM Mali binary blobs, here's a video of this forthcoming milestone goal:



The recent Git commits to the Lima driver can be found on their Gitorious account.

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. Trying Out The Modern Linux Desktops With 4 Monitors + AMD/NVIDIA Graphics
  2. Turning A Basement Into A Big Linux Server Room
  3. NVIDIA's $1000+ GeForce GTX TITAN X Delivers Maximum Linux Performance
  4. OS X 10.10 vs. Ubuntu 15.04 vs. Fedora 21 Tests: Linux Sweeps The Board
  5. The New Place Where Linux Code Is Constantly Being Benchmarked
  6. 18-GPU NVIDIA/AMD Linux Comparison Of BioShock: Infinite
Latest Linux News
  1. Fedora 22 Alpha Now Available For AArch64 & PowerPC64
  2. Systemd Developers Did NOT Fork The Linux Kernel
  3. PulseAudio 7.0 To Enable LFE Remixing By Default
  4. Features & Changes Coming For Mir 0.13
  5. How Far Valve Has Come: Three Years Ago They Needed OpenGL Linux Help
  6. Audacity 2.1 Improves Noise Reduction, Adds Real-Time Effects Preview
  7. Linux 4.0-rc6 Kernel Released
  8. Automatically Managing The Linux Benchmarks Firing Constantly
  9. The Big Features Of The Linux 4.0 Kernel
  10. Mesa's Android Support Is Currently In Bad Shape
Most Viewed News This Week
  1. Introducing The Library Operating System For Linux
  2. Improved OpenCL Support For Blender's Cycles Renderer
  3. Allwinner Continues Jerking Around The Open-Source Community
  4. Open-Source Driver Fans Will Love NVIDIA's New OpenGL Demo
  5. GNOME 3.16 Released: It's Their Best Release Yet
  6. Systemd Change Allows For Stateless Systems With Tmpfs
  7. Ubuntu 15.04 Final Beta Released
  8. Red Hat Is Rolling Out A VirtIO DRM/KMS GPU Driver