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. Btrfs On 4 x Intel SSDs In RAID 0/1/5/6/10
  2. AMD Radeon R9 290 On Ubuntu 14.10: RadeonSI Gallium3D vs. Catalyst
  3. MSI X99S SLI PLUS On Linux
  4. NVIDIA GeForce GTX 970 Offers Great Linux Performance
Latest Linux Articles
  1. Windows 8.1 vs. Ubuntu 14.10 With Intel HD Graphics
  2. 6-Way Ubuntu 14.10 Radeon Gallium3D vs. Catalyst Driver Comparison
  3. NVIDIA vs. Nouveau Drivers On Ubuntu 14.10
  4. Ubuntu 14.10 Offers AMD Radeon Driver Performance Improvements
Latest Linux News
  1. GTK+ 3.16's New GtkGLArea Widget Gets Improved
  2. X.Org Server 1.17 ABI Bumped
  3. Fedora 21 Beta To Be Released Next Week
  4. Go 1.4 Beta Release Brings Big Runtime Changes
  5. SIMD For JavaScript Continues Coming Along
  6. GNOME 3.15.1 Released
  7. Red Hat Software Collections 1.2 Adds GCC 4.9, Nginx 1.6
  8. GLAMOR Acceleration Continues To Be Cleaned Up
  9. Russia's Yandex Web Browser Finally Released For Linux
  10. Linux Kernel Finally Being Optimized For SSHDs
Latest Forum Discussions
  1. Is foolish currently develop in machine code, hexadecimal and assembly?
  2. Reducing The CPU Usage In Mesa To Improve Performance
  3. How to get rid of Linux
  4. Help diagnosing problems with a Readon HD 4670 on Mesa 10.3.2-1
  5. Advertisements On Phoronix
  6. nv and xorg.conf under Debian PPC
  7. Looking for a Open-Source AMD experienced Linux mentor
  8. Bad perfomance in gaming