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

Radeon PRIME Import/Export Support For Libdrm

AMD

Published on 13 August 2012 09:43 PM EDT
Written by Michael Larabel in AMD
13 Comments

Support within the DRM user-space library for handling PRIME import and export of GEM buffer objects has been committed for the open-source Radeon Linux graphics driver.

DRM PRIME is part of what David Airlie's been working on lately for modernizing the open-source Linux graphics driver stack with being able to properly support multiple GPUs/drivers (e.g. NVIDIA Optimus support), USB GPU hot-plugging, and other functionality. DRM PRIME with DMA-BUF allows for sharing of a buffer between two DRM drivers.

On the kernel side, the first DMA-BUF PRIME patches landed in the Linux 3.4 kernel while more of it landed in Linux 3.5 for the in-kernel graphics drivers. There's still some yet-to-be-merged work like DMA-BUF PRIME synchronization but overall the pieces of the Linux graphics stack to modernize it and bring it closer to par with the proprietary AMD/NVIDIA graphics stacks are coming together.

With X.Org Server 1.13, which should be released in early September, it also has PRIME support merged and other pieces to this complicated graphics puzzle.

Now today on the libdrm front, the relatively simple and small Radeon import/export PRIME support for the DRM library has been merged to Mesa Git master by David Airlie -- per this commit. This work comes one month after the Intel and Nouveau libdrm code was updated for the PRIME interaction. The Radeon change will be part of libdrm 2.4.39 with the 2.4.38 release having happened this weekend.

Changes to libdrm 2.4.38 meanwhile include adding new Radeon HD 7000 "Southern Islands" PCI IDs, adding some missing Radeon HD 5000 "Evergreen" PCI IDs, better handling of unknown Intel devices, the Nouveau/Intel PRIME changes from last month, modetest improvements, Radeon tweaks by Marek Olšák, more Intel Haswell PCI IDs, and various TI OMAP bits from Rob Clark.

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. How Intel Graphics On Linux Compare To Open-Source AMD/NVIDIA Drivers
  2. The Fastest NVIDIA GPUs For Open-Source Nouveau With Steam Linux Gaming
  3. Testing For The Latest Linux Kernel Power Regression
  4. The Most Energy Efficient Radeon GPU For AMD Linux Gaming
Latest Linux News
  1. AMD, Wine & Valve Dominated August For Linux Users
  2. Linux 3.17-rc3 Kernel Released Back On Schedule
  3. Lennart Poettering Talks Up His New Linux Vision That Involves Btrfs
  4. Mesa 10.3 RC2 Arrives Via Its New Release Manager
  5. Ubuntu 14.10's Lack Of X.Org Server 1.16 Gets Blamed On AMD
  6. MSI Motherboard BIOS Updating Remains A Pain For Linux Users
  7. See How Your Linux System Performs Against The Latest Intel/AMD CPUs
  8. AMD Steppe Eagle Flys To Coreboot
  9. Intel Beignet Is Working Out Surprisingly Well For OpenCL On Linux
  10. Coreboot Adds Lenovo X220 With Native Sandy Bridge Support
Latest Forum Discussions
  1. SSD seems slow
  2. AMD Releases UVD Video Decode Support For R600 GPUs
  3. Is laptop with Intel CPU and AMD dGPU worth buying considering especially AMD Enduro?
  4. Btrfs Gets Talked Up, Googler Encourages You To Try Btrfs
  5. Radeon HD5670 and Ubuntu 14.04
  6. Updated graphics drivers for Ubuntu 12.04 Precise LTS
  7. Catalyst 14.201.1008
  8. It's Now Possible To Play Netflix Natively On Linux Without Wine Plug-Ins