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

AMD Releases New AtomBIOS Parser

Michael Larabel

Published on 25 July 2008
Written by Michael Larabel
Page 1 of 1 - 1 Comment

Last September AMD had provided an open-source AtomBIOS parser for use by the RadeonHD driver in order to communicate with this video BIOS abstraction layer found on the past few generations of ATI graphics cards. While we are still waiting on the R600 sample source-code and 3D register documentation to arrive, AMD has today released a new AtomBIOS parser. This parser is coming out of their KGrids project, which we have previously mentioned in the past, and will allow for a clean AtomBIOS parser to enter the Linux kernel.

KGrids is an internal project at AMD used by their engineers in creating a simple kernel driver and testing environment used prior to having the silicon for future graphics processors becoming available. KGrids is also quite similar to another internal AMD project, TCore, which we have been talking about for the past several months. Both KGrids and TCore are on AMD's road map for being open-sourced in order to assist community developers in enabling 2D/3D acceleration for the R600 and RV770 series. This new AtomBIOS parser is just a subset of the total code used by KGrids.

The package for this parser is called kgrids-atom and is made up of merely one C file and three header files. In total there are just under 1,400 lines of code.

What does this new parser deliver to interested developers? Well, it's a lot cleaner than the AtomBIOS parser currently in use by the xf86-video-radeonhd and xf86-video-ati drivers. This parser doesn't deliver any new features or performance improvements, but it's in a much cleaner state to be submitted for inclusion into the Linux kernel.

With ATI AtomBIOS support in the kernel, this will be used for Kernel-based Mode-Setting. Speaking with AMD's Alex Deucher, the current DDX drivers could adopt this new driver, but that would be just added work with little to no end-user benefits. In addition, this code is less tested than the current AtomBIOS parser.

If you are interested in checking out the source-code to kgrids-atom, it can be downloaded from X.Org. We are now one (albeit small) step closer to kernel mode-setting for ATI graphics!

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. Acer B286HK: A 28-inch UHD LED 4K Monitor For As Low As $350
  2. Intel Xeon E5-1680 v3 & E5-2687W v3 Compared To The Core i7 5960X On Linux
  3. Intel 120GB 530 Series SSD Linux Performance
  4. Btrfs/EXT4/XFS/F2FS RAID 0/1/5/6/10 Linux Benchmarks On Four SSDs
Latest Linux Articles
  1. Mesa Git Yields Performance Improvements For Newer AMD GPUs
  2. Apple OS X 10.10 vs. Ubuntu 14.10 Performance
  3. Mesa 10.5-devel Brings Some Intel Haswell HD Graphics Changes Over Mesa 10.3
  4. NVIDIA vs. Nouveau Drivers With Linux 3.18 + Mesa 10.4-devel
Latest Linux News
  1. NVIDIA Posts Tegra Gallium3D Patch For K1+ Support
  2. Ubuntu 14.10 MacBook Air Tests With Linux 3.18, Mesa 10.5
  3. AMD Richland APU Support Added To Coreboot
  4. 2014 Holiday Shopping Reminder, Happy Thanksgiving
  5. Python 3 Support Added To The GNOME Shell
  6. ReactOS Lands Its New Explorer Shell
  7. Weston's IVI Shell Sees New Version
  8. IMP Launches As Another Open-Source Computer Attempt
  9. Git 2.2.0 Released With 550+ Changes
  10. GNOME 3.15.2 Released
Latest Forum Discussions
  1. Updated and Optimized Ubuntu Free Graphics Drivers
  2. Hurrican SDL Port
  3. Roadmap to Catalyst 14.10 ?
  4. how to configure module phoromatic ?
  5. PulseAudio 6.0 Is Coming & Other Linux Audio Plans For The Future
  6. Debian Developer Resigns From The Systemd Maintainership Team
  7. Cant get working Kaveri APU - A10-7850k
  8. Script for Fan Speed Control