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

PRIME/DMA_BUF Support For Wayland

Wayland

Published on 28 February 2013 01:40 AM EST
Written by Michael Larabel in Wayland
2 Comments

Kristian Høgsberg has published initial support for Wayland to support buffer sharing that's compatible with PRIME/DMA_BUF.

PRIME is the project that originally came about in the X.Org world for supporting technologies like NVIDIA Optimus with buffer sharing and GPU offloading. DMA_BUF is the Linux kernel infrastructure that allows zero-copy sharing of buffers between kernel drivers, such as from one DRM driver to another (so multiple GPUs from different vendors can share a buffer in a standardizes way) or from a DRM driver to a driver in a different sub-system (e.g. V4L2; namely in the case of ARM SoCs).

The work that Kristian Høgsberg published on Wednesday evening is support for creating a DRI Image from a PRIME/DMA_BUF file descriptor. The patch series then goes on to add support for wl_drm buffer sharing via this file descriptor passing.

This work isn't for Wayland/Weston itself but to the DRI2 EGL driver, the Mesa DRI driver to support creating a DRI Image from a passed file descriptor, and the EGL Wayland DRM code living within Mesa.

The set of three patches can be found on the wayland-devel list.

In case you missed it, earlier this week Kristian also proposed pointer locks for Wayland that are modelled after the HTML5 pointer locking interface, which is primarily useful for gamers.

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. AMD's RadeonSI Driver Sped Up A Lot This Summer
  2. Intel's Latest Linux Graphics Code Competes Against OS X 10.9
  3. Intel Sandy Bridge Gets A Surprise Boost From Linux 3.17
  4. Open-Source Radeon Graphics Have Some Improvements On Linux 3.17
Latest Linux News
  1. The Widely-Criticized New Commercial Linux Distro Is Now On Kickstarter
  2. CUDA 6.5 Is Doing Great For Blender
  3. Wayland & Weston 1.6 Alpha Released
  4. Nouveau Gets Improved Re-Clocking Handling For Select GPUs
  5. A New First-Person Mystery Game Might Be Coming To Linux
  6. Patch By Patch, LLVM Clang Gets Better At Building The Linux Kernel
  7. VC4 Gallium3D Driver Now Handles X With GLAMOR
  8. Opera 25 Development Release For Linux
  9. Steam Now Supports VA-API For In-Home Game Streaming
  10. GNOME 3.14 Beta Released
Latest Forum Discussions
  1. Systemd 216 Piles On More Features, Aims For New User-Space VT
  2. OSS radeon driver for A10-7850K (Kaveri)
  3. Btrfs Gets Talked Up, Googler Encourages You To Try Btrfs
  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