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

NVIDIA Posts Mesa Patches For GK20A Gallium3D Support

NVIDIA

Published on 27 May 2014 02:09 PM EDT
Written by Michael Larabel in NVIDIA
1 Comment

NVIDIA has made another open-source contribution today by releasing a small set of patches needed to adjust the Nouveau Gallium3D driver to support their "GK20A" graphics.

The GK20A graphics is the Kepler-based GPU found within NVIDIA's Tegra K1 SoC. The Tegra K1 is quite a beast with four Cortex-A15 CPU cores, a fifth companion core, and Kepler graphics that use NVIDIA's mainline Linux graphics driver with support for full desktop OpenGL 4.x and CUDA. The Tegra K1 is what powers the interesting NVIDIA Jetson TK1 and will be powering many other consumer devices in the months ahead.

NVIDIA Posts Mesa Patches For GK20A Gallium3D Support


Back in February is when NVIDIA provided open-source GK20A / Tegra K1 graphics support on the kernel side by adding the DRM/KMS support for this Kepler-based GPU to the Nouveau DRM driver. NVIDIA just didn't do an initial code drop but the work went through the review process and got things working quite nicely on an open-source Nouveau-based driver stack to complement their proprietary Linux graphics driver that's part of the Linux 4 Tegra image. The GK20A Nouveau DRM code will likely land in Linux 3.16.

NVIDIA fortunately didn't stop with the DRM/KMS support for the Tegra K1 graphics but now they've posted a minor set of Mesa modifications that allow the GK20A to work with the NVC0 Gallium3D driver atop the supported DRM driver. Alexandre Courbot shared that with these two patches it's "possible to run Mesa programs on GK20A (Tegra K1). The support was rather trivial on the Mesa/Gallium3D side since the GK20A is similar to the already-supported GK104 graphics processor while using the GK110 ISA.

The GK104 GPU is what's in the GeForce GTX 660 Ti through GeForce GTX 680 series graphics cards; GK110 meanwhile is what's in the GeForce GTX 780 and TITAN graphics card series. The small Nouveau Mesa patch-set for the GK20A / Tegra K1 support is currently queued up on the Mesa-dev list and has already been reviewed by frequent Nouveau contributor Ilia Mirkin. Hopefully this support will land for Mesa 10.3 as it's now too late for the imminent Mesa 10.2 release.

Update: The support has now landed.

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. Intel Launches The Core i7 5960X, Mighty Powerful Haswell-E CPUs
  2. AMD Radeon R9 290: Gallium3D vs. Catalyst Drivers
  3. AMD Radeon R9 290 Open-Source Driver Works, But Has A Ways To Go
  4. Trying The Configurable 45 Watt TDP With AMD's A10-7800 / A6-7400K
Latest Linux Articles
  1. The Fastest NVIDIA GPUs For Open-Source Nouveau With Steam Linux Gaming
  2. Testing For The Latest Linux Kernel Power Regression
  3. The Most Energy Efficient Radeon GPU For AMD Linux Gaming
  4. 20-Way Radeon Comparison With Open-Source Graphics For Steam On Linux Gaming
Latest Linux News
  1. Intel Beignet Is Working Out Surprisingly Well For OpenCL On Linux
  2. Coreboot Adds Lenovo X220 With Native Sandy Bridge Support
  3. Canonical Has Yet To Land X.Org Server 1.16 For Ubuntu 14.10
  4. Imagination Launches A MIPS Development Board
  5. Getting Involved With The New Raspberry Pi Graphics Driver
  6. A New AMD Catalyst Linux Driver Unofficially Surfaces
  7. LibreOffice Ported To 64-bit ARM (AArch64)
  8. Enlightenment E19 RC3 Shows Off The New Wayland Compositor
  9. Metro Redux Is Going To Require OpenGL 4.x On Linux
  10. Jailhouse v0.1 Released As A Basic Hypervisor For Linux
Latest Forum Discussions
  1. Btrfs Gets Talked Up, Googler Encourages You To Try Btrfs
  2. Updated graphics drivers for Ubuntu 12.04 Precise LTS
  3. Catalyst 14.201.1008
  4. It's Now Possible To Play Netflix Natively On Linux Without Wine Plug-Ins
  5. Users defect to Linux as OpenBSD removes Lynx from base system
  6. Updated and Optimized Ubuntu Free Graphics Drivers
  7. Canonical Joined The Khronos Group To Help Mir/Wayland Drivers
  8. Radeon HD5670 and Ubuntu 14.04