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

Handling Command Submission For The Intel DRM Driver

Intel

Published on 01 November 2012 10:50 AM EDT
Written by Michael Larabel in Intel
Comment On This Article

If you liked yesterday's post by Daniel Vetter of Intel's Open-Source Technology Center that covered going over the Graphics Execution Manager for memory management, today he's around with a second part that details command submission handling for the Intel open-source Linux driver.

For those interested in low-level details of GPU driver development whether it be for curiosity or wanting to get into driver development, part two covers the Intel command submission process.
As I've alluded already, gpu command submission on intel hardware happens by sending a special buffer object with rendering commands to the kernel for execution on the gpu, the so called batch buffer. The ioctl to do this is called execbuf. Now this buffer contains tons of references to various other buffer objects which contain textures, render buffers, depth&stencil buffers, vertices, all kinds of gpu specific things like shaders and also quite some state buffers which e.g. describe the configuration of specific (fixed-function) gpu units.
Continue reading on Daniel's blog.

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. MSI X99S SLI PLUS On Linux
  2. NVIDIA GeForce GTX 970 Offers Great Linux Performance
  3. CompuLab Intense-PC2: An Excellent, Fanless, Mini PC Powered By Intel's i7 Haswell
  4. From The Atom 330 To Haswell ULT: Intel Linux Performance Benchmarks
Latest Linux Articles
  1. Open-Source Radeon 2D Performance Is Better With Ubuntu 14.10
  2. RunAbove: A POWER8 Compute Cloud With Offerings Up To 176 Threads
  3. 6-Way Ubuntu 14.10 Linux Desktop Benchmarks
  4. Ubuntu 14.10 XMir System Compositor Benchmarks
Latest Linux News
  1. Dead Island GOTY Now Available On Linux/SteamOS
  2. Ubuntu 14.04 In The Power8 Cloud From RunAbove
  3. KDE With Theoretical Client-Side Decorations, Windows 10 Influence
  4. Sandusky Lee: Great Cabinets For Storing All Your Computer Gear
  5. Fedora 21 Beta & Final Release Slip Further
  6. Mesa 10.3.2 Has A Couple Bug-Fixes
  7. RadeonSI/R600g HyperZ Support Gets Turned Back On
  8. openSUSE Factory & Tumbleweed Are Merging
  9. More Fedora Delays: Fedora 21 Beta Slips
  10. Mono Brings C# To The Unreal Engine 4
Latest Forum Discussions
  1. Users/Developers Threatening Fork Of Debian GNU/Linux
  2. Updated and Optimized Ubuntu Free Graphics Drivers
  3. HOPE: The Ease Of Python With The Speed Of C++
  4. Use Ubuntu MATE 14.10 Make it an official distro.
  5. Debian Is Back To Discussing Init Systems, Freedom of Choice
  6. AMD Radeon VDPAU Video Performance With Gallium3D
  7. Ubuntu 16.04 Might Be The Distribution's Last 32-Bit Release
  8. Linux hacker compares Solaris kernel code: