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

Userptr Support Set For AMD Radeon GPUs In Linux 3.18

AMD

Published on 21 August 2014 12:00 AM EDT
Written by Michael Larabel in AMD
1 Comment

While it was originally set for Linux 3.17, with the Linux 3.18 kernel that's still months away will be userptr support for the AMD Radeon graphics driver.

The user pointer "userptr" support allows turning a memory pointer supplied by user-space into a buffer object for the DRM kernel graphics driver. Userptr can be used for GPGPU/compute scenarions and other situation for feeding memory objects from user-space to the kernel driver.

Intel's DRM graphics driver in the kernel already led the userptr way and Radeon followed but it wasn't quite ready for Linux 3.17 due to waiting on the Radeon user-space code.

Alex Deucher sent in on Wednesday his initial Radeon DRM pull request for drm-next, which is code that won't land until the Linux 3.18 kernel merge window opens after the Linux 3.17 release. With this first pull request (and more expected in the weeks ahead), the only change over the Radeon Linux 3.17 code is the userptr support.

Separately, Intel has also been lining up its changes for Linux 3.18. The Radeon userptr pull request for drm-next-3.18 can be found on dri-devel.

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. Scythe Mugen MAX
  2. Intel Core i7 5960X Haswell-E On Linux
  3. Intel 80GB 530 Series M.2 SSD On Linux
  4. With A New Motherboard, The Core i7 5960X Haswell-E Lights Up
Latest Linux Articles
  1. Fedora 21 Alpha First Impressions: It's Great
  2. Counter-Strike: Global Offensive NVIDIA/AMD Benchmarks On Linux
  3. A Tour Of The New Phoronix Office
  4. 7-Way Linux Desktop Gaming Comparison On Ubuntu 14.10
Latest Linux News
  1. Debian Switches Back To GNOME As Its Default Desktop
  2. Fedora 21 Alpha Finally Sees The Light Of Day
  3. Qt 5.4 Will Support Applications Under A Wayland Compositor
  4. Valve Rolls Out A New Steam Storefront
  5. The Features Coming For Fedora 21
  6. Counter-Strike: Global Offensive Starts Rolling Out To Linux Users
  7. The Gestures Support Of GNOME 3.14
  8. Linux 3.17 Has Basic Support For The Xbox One Controller
  9. openSUSE 13.2 Beta Still Using Btrfs By Default, & KDE Plasma 5 For Testing
  10. GTK+ 3.14 Brings Much Better Wayland Support, Multi-Touch, New Theme
Latest Forum Discussions
  1. X.Org Women Outreach Program Only Turns Up Two Applicants So Far
  2. Wasteland 2 Officially Launched Today, Including For Linux Gamers
  3. NVIDIA GTX 770/780 -works ?
  4. Uselessd: A Stripped Down Version Of Systemd
  5. State of Nouveau now and in the near future?
  6. Updated and Optimized Ubuntu Free Graphics Drivers
  7. New stress testing utility for GPU's
  8. How to get Catalyst 14.4 working on Ubuntu 14.04