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

DRM Graphics Updates Sent In For Linux 3.12

Linux Kernel

Published on 05 September 2013 12:35 PM EDT
Written by Michael Larabel in Linux Kernel
4 Comments

For those monitoring the daily advancements to the open-source DRM (Direct Rendering Manager) kernel graphics driver, the big feature pull request has been sent in for the Linux 3.12 kernel merge window.

We have covered many of the DRM graphics driver enhancements individually that have been aligned for entrance into the Linux 3.12 kernel, but to recap:

- The Snapdragon MSM KMS/DRM driver will be introduced. This is the Qualcomm Snapdragon/Adreno driver that was developed not by Qualcomm but rather Rob Clark of the Freedreno project. Qualcom has had an out-of-tree open-source kernel driver for Android, but for Rob's 3D driver reverse-engineering and Gallium3D driver writing, he ended up making his own DRM/KMS driver that is now in a readied state for some hardware using these ARM SoCs.

- There is GPU run-time power management so now secondary GPUs (e.g. in Optimus laptops) can be dynamically powered on/off when needed. This rsecondary GPU power-off support required changes to VGA Switcheroo and the HDMI audio driver in particular.

- DRM render/mode-set nodes will be introduced by David Herrmann along with his VMA manager for TTM and GEM memory management methods.

- Support for HDMI 4k modes within DRM core.

- Lots of Intel driver changes from supporting the Haswell eLLC cache (dedicated RAM) on Iris Pro graphics to various Haswell fixes and better power management.

- Continued work on Radeon power management so Radeon HD 8000 series hardware now has ASPM (PCI Express Active State Power Management) and DPM (Dynamic Power Management). There's also AMD "Berlin" APU support and other changes.

- Nouveau VP3 video engine support and other smaller changes/fixes for this reverse-engineered NVIDIA graphics driver.

- Various other smaller changes to the less prominent mainline open-source DRM graphics drivers.

More information on the DRM changes for Linux 3.12 can be found via the pull request by Red Hat's David Airlie.

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. NVIDIA's $1000+ GeForce GTX TITAN X Delivers Maximum Linux Performance
  2. OS X 10.10 vs. Ubuntu 15.04 vs. Fedora 21 Tests: Linux Sweeps The Board
  3. The New Place Where Linux Code Is Constantly Being Benchmarked
  4. 18-GPU NVIDIA/AMD Linux Comparison Of BioShock: Infinite
  5. Phoronix Test Suite 5.6 Adds New Phoromatic Enterprise Benchmarking Features
  6. OpenGL Threaded Optimizations Responsible For NVIDIA's Faster Performance?
Latest Linux News
  1. Improved OpenCL Support For Blender's Cycles Renderer
  2. Mesa 10.5.2 Packs In A Handful Of Fixes
  3. More Fedora/Ubuntu Linux vs. OS X OpenGL Benchmarks
  4. Intel Adds Mesa IR To NIR Translator & Makes Other NIR Improvements
  5. HAMMER2 Gets A Man Page
  6. Kodi 14.2 Released To End Out The "XBMC" 14.x Series
  7. Debian 8.0 Jessie RC2 Installer Released
  8. Shadow Warrior Is Being Released For Linux Next Week
  9. Intel Pushes A Bunch Of Broadwell Code Into Coreboot
  10. Open-Source Driver Fans Will Love NVIDIA's New OpenGL Demo
Most Viewed News This Week
  1. Introducing The Library Operating System For Linux
  2. Allwinner Continues Jerking Around The Open-Source Community
  3. AMD Is Hiring Two More Open-Source Linux GPU Driver Developers
  4. Systemd Change Allows For Stateless Systems With Tmpfs
  5. GNOME Shell & Mutter 3.16.0 Released
  6. GNU Nano 2.4.0 Brings Complete Undo System, Linter Support & More
  7. GNOME 3.16 Released: It's Their Best Release Yet
  8. Red Hat Is Rolling Out A VirtIO DRM/KMS GPU Driver