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

30 Patches To Intel's Linux DRM Driver Published

Linux Kernel

Published on 12 April 2011 07:45 PM EDT
Written by Michael Larabel in Linux Kernel
2 Comments

To the Intel graphics mailing list, Chris Wilson has just published a set of thirty patches to be applied against their DRM tree that will end up being merged for the Linux 2.6.40 kernel. Some of these patches are quite interesting.

The first nine patches re-factor the mode-setting code that Eric Anholt has been working on. This re-factored code will hopefully result in less breakage across generations of Intel graphics processor and all-around should be an improvement to Intel's Linux support.

The big part of this patch-set is the LLC caching series for Sandy Bridge. As illustrated on Phoronix, the LLC caching is able to significantly boost the Intel open-source graphics performance across the board. It's really quite good and another step in the right direction for the Sandy Bridge Linux support compared to the Windows performance.

The rest of the patches offer up RC6 fixes for Ironlake, Jesse's module parameter for Sandy Bridge, small code re-factoring, pipelined fence fixes, and caching of GT FIFO count. The GT FIFO count caching should result in a performance gain for the Intel X.Org DDX (2D) driver, but the work is likely to be replaced by the proper GT read/write fixes.

What this set of 30 kernel patches doesn't offer though is the G45 VA-API video acceleration support or the initial bits of code for Intel's next-generation "Ivy Bridge" hardware. It hasn't been publicly announced yet, but expect the Ivy Bridge hardware enablement to begin with Linux 2.6.40.

While Sandy Bridge was just launched back in January and its support is still maturing, the initial Ivy Bridge graphics support should land with Linux 2.6.40 when it comes to the kernel-space side of the graphics stack. (Not sure offhand when the DDX and Mesa user-space bits will be pushed, I'd suspect around the same time.)

Ivy Bridge though isn't expected for release until near the end of the calendar year, so there should be a few releases for its support to be ironed out and hopefully with good "out of the box" support compared to Sandy Bridge.

The set of 30 patches can be found on the mailing list.

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. Intel P-State vs. CPUFreq Benchmarks On The i7-5960X
  2. RadeonSI GLAMOR Benchmarks With X.Org Server 1.16
  3. RadeonSI Gallium3D vs. Catalyst At 4K UHD On Linux
  4. MSAA RadeonSI Gallium3D Performance Preview
Latest Linux News
  1. Ubuntu Touch/Phone Reaches Its First RTM Image
  2. The KMS Mode-Setting Driver Was Imported For X.Org Server 1.17
  3. SNA & UXA Intel Benchmarks With X.Org Server 1.16
  4. Graphics Driver Changes Coming In The Linux 3.18 Kernel
  5. Tropico 5 Being Released For Linux Gamers This Week
  6. Eclipse IDE Starts Firing Up On Wayland's Weston
  7. OpenSUSE Announcement On SUSE's Recent Merger
  8. Valve Begins Publicly Tracking AMD Catalyst Linux Issues
  9. Digia Qt Spinoff Is Called "The Qt Company"
  10. GNOME 3.14 Makes More Progress In Running Natively On Wayland
Latest Forum Discussions
  1. New Group Calls For Boycotting Systemd
  2. Updated and Optimized Ubuntu Free Graphics Drivers
  3. Stop grabbing my keyboard :(
  4. Best Radeon for a Power Mac G5?
  5. New stress testing utility for GPU's
  6. Hd 6850
  7. support for first generation UVD blocks (RV6xx, RS780, RS880 and RV790)
  8. Nvidia joins the ranks of Apple and Microsoft