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

Going Through Intel's Graphics Execution Manager

Intel

Published on 10 January 2013 01:02 AM EST
Written by Michael Larabel in Intel
1 Comment

For developers looking to get into Linux graphics driver programming or just wanting to know how Intel's Graphics Execution Manager (GEM) works within the Linux kernel, here's a guide.

The Graphics Execution Manager is Intel's form of memory management within the Linux kernel for use by their i915 DRM graphics driver. GEM is an alternative to using TTM, as done internally by the Radeon and Nouveau drivers.

For the past few months, Daniel Vetter of Intel's Open-Source Technology Center has been writing a guide about GEM. Daniel's "i915/GEM Crashcoure" is split into four parts and in the first part covers different address spaces of i915 GEM buffer objects as well as page table setup. Part 2 goes through submitting work to the graphics processor and tracking the GPU progress and command submission along with relocation handling, command retiring, and synchronization. Part 3 covers the memory management in more detail and GTT space and what happens under video memory pressure. The final part goes through coherency and caches and efficienctly transferring data between GPU coherency domains and the CPU coherency domain.

Those wanting to read through Vetter's technical ramblings about i915/GEM, the writings are on his personal blog.

Latest Linux Hardware Reviews
  1. Mini-Box M350: A Simple, Affordable Mini-ITX Case
  2. Overclocking The AMD AM1 Athlon & Sempron APUs
  3. AMD Athlon 5350 / 5150 & Sempron 3850 / 2650
  4. Upgraded Kernel & Mesa Yield A Big Boost For Athlon R3 Graphics
Latest Linux Articles
  1. A Quick Look At GCC 4.9 vs. LLVM Clang 3.5
  2. Are AMD Athlon/Sempron APUs Fast Enough For Steam On Linux?
  3. AMD Athlon's R3 Graphics: RadeonSI Gallium3D vs. Catalyst
  4. GCC 4.9 Compiler Optimization Benchmarks For Faster Binaries
Latest Linux News
  1. Fedora 21 Gets GNOME 3.12, PHP 5.6, Mono 3.4
  2. Fedora Workstation Is Making Me Quite Excited
  3. Maynard: A Lightweight Wayland Desktop
  4. Chromium Browser Going Through Growing Pains In Ubuntu 14.04
  5. KDE 4.13 Is Being Released Today With New Features
  6. Trying Out Radeon R9 290 Graphics On Open-Source
  7. Intel Broadwell GT3 Graphics Have Dual BSD Rings
  8. Early Linux 3.15 Benchmarks Of Intel Core i7 + Radeon
  9. Red Hat Releases Its RHEL 7 Release Candidate
  10. New Features Coming To Xubuntu 14.04 LTS
  11. NVIDIA Officially Releases CUDA 6
  12. Google Releases An AutoFDO Converter For Perf In LLVM
Latest Forum Discussions
  1. The GNOME Foundation Is Running Short On Money
  2. Change installation destination from home directory
  3. After Jack Keane, RuseSoft will briing Ankh 3 to Linux through Desura
  4. Linux Kernel Developers Fed Up With Ridiculous Bugs In Systemd
  5. Bye bye BSD, Hello Linux: A Sys Admin's Story
  6. New tool for undervolt/overclock AMD K8L and K10 processors
  7. How to enable opengl 3.3 on r9 270?
  8. R290x sound problems