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

Broadcom VC4 Work Well Underway On DRM, Gallium3D Support Planned

Mesa

Published on 18 June 2014 09:17 AM EDT
Written by Michael Larabel in Mesa
5 Comments

Beginning this week, Eric Anholt is now working for Broadcom after working for Intel's Open-Source Technology Center the past several years on the Intel Linux graphics driver stack. While Eric just started there, he's already made some headway on a Broadcom DRM driver and expects to begin developing a Gallium3D driver soon.

Eric has a bare-bones DRM driver under development for the Broadcom VC4 hardware found within the Raspberry Pi. This DRM driver code is based upon the Broadcom 2708 Android driver port with early open-source 3D work done by Simon Hall and now picked up by Eric. Eric's DRM driver in its current form just talks with Broadcom's firmware blob for handling mode-setting and he's just beginning to work on the GPU execution support.

In a few days Eric anticipates starting on the user-space support, for which he's initially targeting a Gallium3D-based driver. He's aiming to do a Gallium3D driver since it's the easiest path to get going for a open-source 3D Linux OpenGL (GLES) driver while later on he might switch the driver model over to being a classic DRI driver in Mesa.

Eric wrote, "I'm probably going to start out doing a gallium driver for simplicity, to avoid having to do all the DRI crap we've got in brw_context.c and texture miptree validation and getting user data into VBOs and all that other almost-boilerplate. Long term I may end up switching to classic so I can get swrast fallbacks and the ability to implement single-copy manually-tiled TexImage uploads like. For now I want to get to drawing triangles as soon as I can."

At Phoronix we covered Eric's departure from Intel for Broadcom earlier in the week while a few hours ago he just posted about his Broadcom VC4 DRM/Gallium3D work to the Mesa-dev mailing list. Eric's far from complete DRM driver for the Broadcom hardware can be tracked via his VC4 Linux kernel branch.

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. AMD Radeon R9 290: Gallium3D vs. Catalyst Drivers
  2. AMD Radeon R9 290 Open-Source Driver Works, But Has A Ways To Go
  3. Trying The Configurable 45 Watt TDP With AMD's A10-7800 / A6-7400K
  4. Sumo's Omni Gets Reloaded
Latest Linux Articles
  1. 20-Way Radeon Comparison With Open-Source Graphics For Steam On Linux Gaming
  2. Preview: OS X 10.10 Yosemite vs. Ubuntu Linux GPU Performance
  3. Radeon Graphics Yield Mixed Results With Linux 3.17 Kernel
  4. AMD's RadeonSI Driver Sped Up A Lot This Summer
Latest Linux News
  1. Google Chrome 37 Brings Many Security Fixes
  2. MenuetOS Updated With SMP Threads & Onscreen Keyboard
  3. Mesa Has A New Release Manager
  4. Enlightenment E19 Lands Its New Wayland Compositor Code
  5. Nouveau Turns Into A Mess In Latest Linux 3.17 + Mesa 10.3-dev Tests
  6. New GCC 5.0 Changes, Command-Line Options That Landed So Far
  7. SteamOS Update 133 Has Better Intel Performance, VA-API
  8. DRM Graphics Changes For Linux 3.18 Might End Up Being Smaller
  9. Ioquake3 Works On Finally Switching Over To SDL2
  10. Linux 3.17-rc2 Release Celebrates 23 Years Of Linux
Latest Forum Discussions
  1. Updated and Optimized Ubuntu Free Graphics Drivers
  2. AMD Releases UVD Video Decode Support For R600 GPUs
  3. Announcing radeontop, a tool for viewing the GPU usage
  4. Users defect to Linux as OpenBSD removes Lynx from base system
  5. Chinese People Try To Patent Wine On ARM
  6. American Citizens running AMOK for food stamps
  7. "The World's Most Highly-Assured OS" Kernel Open-Sourced
  8. What Linux Distribution Should Be Benchmarked The Most?