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Thread: Radeon R600 Tiling Patches Are Ready

  1. #1
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    Default Radeon R600 Tiling Patches Are Ready

    Phoronix: Radeon R600 Tiling Patches Are Ready

    Jerome Glisse, the Red Hat developer commonly working on the open-source Radeon graphics driver, has announced that he believes the R600 Gallium3D tiling support is complete...

    http://www.phoronix.com/vr.php?view=MTA1MjY

  2. #2
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    Talking Awesome!

    I can't wait to see benchmarks about this interesting feature Thank you Jerome Glisse!

  3. #3
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    This is just fantastic! All Linux Radeon users thank you, Jerome
    Have a nice break, and please do HiZ if it is your domain. Thanks.

  4. #4
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    > The ColorTiling2D option though still needs to be enabled within the xorg.conf for proper support.

    How to enable it? Which option must be added to xorg.conf?

  5. #5
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    Quote Originally Posted by Drago View Post
    Have a nice break, and please do HiZ if it is your domain. Thanks.
    That would be great! For those who don't know what HiZ stands for, it means Hierarchical Z-Buffer. There is some code to support this feature, but it's stuck since August as you can see here and according to freedesktop's bug report it doesn't work.

  6. #6
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    https://bugs.freedesktop.org/show_bug.cgi?id=36602

    Hi-Z seems stalled unfortunately

  7. #7
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    3.4 is a long wait.

  8. #8
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    Quote Originally Posted by ormaaj View Post
    3.4 is a long wait.
    This is a large patch, and 3.3 merge windows is closed. I wish it could be faster

  9. #9
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    Is there a recommended kernel branch that contains radeon work but maybe not potentially new unstable kernel features, radeon-drm-testing perhaps? Or should we just use master?

    Latest git of mesa, xf86-video-ati and libdrm isn't much of a problem, but the kernel...

    Also, why a xorg.conf setting? Would that be different from R600_TILING=1?

  10. #10
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    The patches are easy to apply, and they work so well that I can use them with Star Trek Online running under wine with an evergreen card. It improves performance a great deal and actually reduces stalling significantly (one of the previous issues I was having is that it was "choppy", but not with 2d tiling).

    Great work, Jerome! Truly one of the better things to hit r600g in a LONG time.

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