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

Freedreno ARM GPU Driver Keeps Hitting Milestones

Hardware

Published on 24 November 2013 03:28 PM EST
Written by Michael Larabel in Hardware
7 Comments

The Freedreno open-source graphics driver project that's a clean-room reverse-engineered implementation of the Qualcomm Adreno graphics core on the company's ARM SoCs keeps reaching new milestones. While the driver is mostly just worked on by Rob Clark and without any support from Qualcomm, it's quickly becoming the flagship open-source ARM graphics driver for the Linux desktop.

Rob Clark provided today via his blog a Sunday status update on Freedreno. Last week I wrote about the Freedreno 1.0 X.Org driver, but that's not all out of this fully open-source ARM GPU driver that now boasts a mainline DRM kernel driver and Mesa Gallium3D driver:

- In Mesa 10.0 there is now emulated support for GL_QUAD and other desktop OpenGL primitives that aren't natively supported by the Adreno GLES-focused hardware. These changes allow GNOME Shell and Compiz to run on the Freedreno Gallium3D driver.

- Relative addressing support has been added to support Chromium GL rendering and a lot of Piglit Mesa regression tests.

- A lot of development work has been happening from the IFC6410 development board with its 1.5GHz Quad-Core Krait and Adreno 320 graphics. Rob Clark personally is recommending this board for those wishing to toy with Qualcomm hardware, but its upstream kernel support isn't the best at the moment.

- Qualcomm has just announced the Adreno 420 as their first Adreno 4xx GPU. This didn't take Rob by surprise as their KGSL kernel driver has been receiving changes already for a few months. For what they know so far, it appears to offer a feature-set similar to DirectX 11 GUs with tesselation, geometry shaders, etc. Rob believes that the 4xx GPUs are using the same shader instruction set architecture (ISA) as the Adreno 3xx GPUs, so bringing up the support might not be too bad. However, all the registers for A4xx GPUs were either moved or changed, plus adding in support for a lot of new hardware. Rob believes that providing Freedreno A4xx GPU support won't be as big as going from the A2xx to A3xx generations, but still some reverse-engineering will be needed.

- With interest continuing to grow in Freedreno, there's now a Freedreno mailing list.

- More documentation and other information continues to be pushed to the Freedreno Wiki.

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. A Walkthrough Of The New 32 System Open-Source Linux Benchmarking Test Farm
  2. Habey MITX-6771: Mini-ITX Board With Quad-Core J1900 Bay Trail
  3. OCZ Vector 150 SSD On Linux
  4. Noctua i4 CPU Cooler: Great For Cooling High-End LGA-2011v3 CPUs
Latest Linux Articles
  1. 17-Way Linux Graphics Card Comparison With Civilization Beyond Earth
  2. AMD Kaveri: Open-Source Radeon Gallium3D vs. Catalyst 14.12 Omega Driver
  3. 12-Way AMD Catalyst 14.12 vs. NVIDIA 346 Series Linux GPU Comparison
  4. AMD Catalyst 14.12 Omega Driver Brings Mixed Results For Linux Users
Latest Linux News
  1. Fedora Doesn't Yet Enable F2FS File-System Support
  2. XZ 5.2 Adds New Multi-Threaded Options
  3. Intel 2.99.917 X.Org Driver Released, 3.0 Release Finally Near
  4. Server-Side XCB Is Being Discussed For The X.Org Server
  5. Adreno A4xx Rendering With Freedreno Takes Shape
  6. Linux 3.19-rc1 Kernel Released Ahead Of Schedule
  7. X.Org Server 1.16.3 Released To Fix Security Issues
  8. Linux 3.19 Merge Window Closes Ahead Of Schedule
  9. MIPS R6 Architecture Now Supported By GCC
  10. LowRISC To Feature Tagged Memory & Minion Cores
Latest Forum Discussions
  1. FPS capped on Linux (AMD fglrx drivers)
  2. Maker3D - create your 3D RPG
  3. Need some hand holding with upgrading xserver
  4. Speeding up systemd networking service
  5. Major Performance Breakthrough Discovered For Intel's Mesa Driver
  6. Looking for an nVidia GPU, but not sure how well they are supported.
  7. Are there an app using HSA ?
  8. The New SuperTuxKart Looks Better, But Can Cause GPU/Driver Problems