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

Samsung Continues On With Exynos DRM Development

Hardware

Published on 02 April 2012 10:04 AM EDT
Written by Michael Larabel in Hardware
3 Comments

Samsung continues working on their open-source Linux graphics driver stack for their Exynos line of ARM-based SoCs. The Samsung developers' latest contribution is Exynos libdrm support.

Last August was when Samsung published the Exynos DRM driver that was merged into the mainline Linux kernel (Linux 3.2 kernel) and the first ARM SoC graphics driver to hit the Direct Rendering Manager sub-system, which was then followed by the Texas Instruments OMAP DRM driver.

Since it went mainline, Samsung has kept working on the Exynos DRM driver with adding new features and improvements during each kernel's merge window. For this current cycle, the Linux 3.4 kernel, Samsung made some very exciting improvements.

The Exynos driver for the Linux 3.4 kernel has HDMI 1.4 support, a new buffer allocation type, a new DMA address interface for GEM/2D acceleration handling, and a virtual display driver. There was also originally a Samsung "G2D driver" for this merge window as a means of direct-rendering 2D graphics acceleration, but that's been delayed due to the Linux 3.5 kernel to allow it more time to bake.

What's new in Samsung's open-source land now is Exynos libdrm support. Inki Dae of Samsung published the 560+ line patch to the mailing list this morning. "This patch adds libdrm_exynos helper layer that inclues some intefaces for exynos specific gem and virtual display driver and also adds exynos module name to modtest and vbltest."

At the moment there isn't a "xf86-video-exynos" X.Org driver to take advantage of the libdrm support, but hopefully it will be worked on. At least though the xf86-video-modesetting driver can work in a generic way atop the Exynos DRM side. There's also not yet any Mesa/Gallium3D driver for Exynos, but that's a much greater dream and would first require significantly more DRM work.

Last week there were also some libdrm changes, including patches for Texas Instruments OMAP support for this user-space DRM library.

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. Trying The Configurable 45 Watt TDP With AMD's A10-7800 / A6-7400K
  2. Sumo's Omni Gets Reloaded
  3. AMD A10-7800 & A6-7400K APUs Run Great On Linux
  4. Radeon Gallium3D Is Running Increasingly Well Against AMD's Catalyst Driver
Latest Linux Articles
  1. Radeon Graphics Yield Mixed Results With Linux 3.17 Kernel
  2. AMD's RadeonSI Driver Sped Up A Lot This Summer
  3. Intel's Latest Linux Graphics Code Competes Against OS X 10.9
  4. Intel Sandy Bridge Gets A Surprise Boost From Linux 3.17
Latest Linux News
  1. Intel Bay Trail Performance With Linux 3.16/3.17 & Mesa 10.3
  2. EFL Sees A Ton Of Work Following Recent v1.11 Release
  3. ARM Talks Up Wayland For Mali
  4. GNOME/GTK+ Human Interface Guidelines Updated
  5. Robocraft Is Rolling Over To Linux
  6. The Widely-Criticized New Commercial Linux Distro Is Now On Kickstarter
  7. Wayland & Weston 1.6 Alpha Released
  8. A New First-Person Mystery Game Might Be Coming To Linux
  9. Patch By Patch, LLVM Clang Gets Better At Building The Linux Kernel
  10. VC4 Gallium3D Driver Now Handles X With GLAMOR
Latest Forum Discussions
  1. OSS radeon driver for A10-7850K (Kaveri)
  2. Btrfs Gets Talked Up, Googler Encourages You To Try Btrfs
  3. Systemd 216 Piles On More Features, Aims For New User-Space VT
  4. American Citizens running AMOK for food stamps
  5. What Linux Distribution Should Be Benchmarked The Most?
  6. Company I work for is looking to contribute to Open Source projects... but wrongly?
  7. Microsoft vs. Campaign
  8. Updated and Optimized Ubuntu Free Graphics Drivers