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

An Open-Source Graphics Driver For Snapdragon

Michael Larabel

Published on 14 April 2012
Written by Michael Larabel
Page 1 of 2 - 13 Comments

There is another new open-source Linux graphics driver entering development and it has already showed signs of success with basic 2D acceleration working. This new open-source driver is for Qualcomm's Snapdragon / Adreno and who is leading the development of this driver is also quite interesting.

This new open-source Snapdragon graphics driver is the open-source GPU news I was hinting at earlier in the week. This driver now joins the Lima Project (the effort for an open-source ARM Mali GPU driver) as being a reverse-engineered Linux graphics driver for an ARM-based SoC. There's also the open-source Texas Instruments OMAP and Samsung Exynos open-source drivers, but while those are backed by their respective companies, they don't offer up accelerated support and are not fully open-source stacks.


The Qualcomm MDP MSM8660 is one of the devices that could potentially benefit from this open-source "Freedreno" driver initiative. [Though not this particular phone, it suffered an untimely death during some tortuous benchmarking.]

What also makes this Snapdragon project interesting is who is the lead developer: Rob Clark. If the name does not ring a bell, you are not up-to-date on your Phoronix reading, but he is one of Texas Instruments' ARM developers. He is the one that is in large part responsible for the Texas Instruments OMAP DRM driver and through his involvement with Linaro has been taking part in DMA-BUF, extending DRI2, and other efforts. While Texas Instruments' OMAP competes with Qualcomm's Snapdragon in the ARM space, he's decided to work on reverse-engineering his competitor's graphics core in his free time.

In his communication with me this week, Rob Clark made it quite clear that this is solely his personal project and that he has just been doing this reverse engineering and driver writing during his free time outside of work. Linaro or Texas Instruments hasn't endorsed this work nor are they even aware of it up until likely reading this article right now as he's just pushing the Git repositories for this work today.

He ended up working on the Snapdragon as he is a fan of open-source graphics drivers, but beyond what TI has already done for their OMAP driver, his hands are tied. "I'd love nothing more than to be working on an [open source] and upstream driver for the SGX GPU on OMAP platforms. But due to what I know and have access to about the inner workings of the IMGtech GPU's, that would not be possible without IMG's approval. I hope someday they warm up to the open source community, but for now I am forced to look elsewhere to contribute."

He also was not sure if he would be able to contribute to the Lima/Mali driver project because ARM is a member company of Linaro, so there might be a conflict of interest there too. "Well, with ARM as a member company of linaro, and coming into contact with ARM folks working on mali, as well as engineers from other linaro member companies who use mali, it seemed like direct contribution to the lima project might be a bit of a gray area. I don't think I really know any internal [secrets] of how mali works (and certainly not more than the lima guys have already figured out)."

<< Previous Page
1
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. Phoronix Test Suite 5.4 M3 Is Another Hearty Update
  2. GParted 0.20 Improves Btrfs Support
  3. EXT4 In Linux 3.18 Has Clean-ups, Bug Fixes
  4. Emacs 24.4 Has Built-In Web Browser, Improved Multi-Monitor Support
  5. NVIDIA's NVPTX Support For GCC Is Close To Being Merged
  6. KDE's KWin On Wayland Begins Using Libinput
  7. Khronos Releases OpenVX 1.0 Specification
  8. Linux Kernel Working Towards GNU11/C11 Compatibility
  9. Ubuntu 15.04 Is Codenamed After A Monkey: Vivid Vervet
  10. Following GCC, Clang Looks To Default To C11
Latest Forum Discussions
  1. HOPE: The Ease Of Python With The Speed Of C++
  2. Users/Developers Threatening Fork Of Debian GNU/Linux
  3. Updated and Optimized Ubuntu Free Graphics Drivers
  4. Bye bye BSD, Hello Linux: A Sys Admin's Story
  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