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An Updated Look At Radeon Gallium3D 2D Color Tiling

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  • #16
    Originally posted by glisse View Post
    1d wasn't a substantial improvement (despite maybe some degenerative case), 2d tiling is a way bigger improvement than 1d.
    When will this hit Fedora?

    Right now, in Fedora 17 it says "ColorTiling2D is not a valid option".

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    • #17
      Originally posted by przemoli View Post
      Maybe you can get input from radeon devs on which improvements to test out to get max performance.

      Btw. what about OpenVG/OpenGL ES benchmarks? Are they possible?
      (g-truc.net called MESA best desktop OpenGL ES implementation , so it's good excuse for some benchmark right? )
      I'm not sure what he'd use for benchmarking since I can't think of any desktop software that uses OVG.

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      • #18
        Tried this with git-mesa/ddx/libdrm an 3.2.12 kernel with the kernel patches from the mailing list
        message on earlyer article. Didn't work after opengl app opens screen freezes (mouse moves)
        and dmesg starts to sprout the invalid command stream errors...

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        • #19
          Originally posted by Huulivoide View Post
          Tried this with git-mesa/ddx/libdrm an 3.2.12 kernel with the kernel patches from the mailing list
          message on earlyer article. Didn't work after opengl app opens screen freezes (mouse moves)
          and dmesg starts to sprout the invalid command stream errors...
          Well you obviously have something wrong on your side, probably not using the correct kernel, or not using correct mesa ... I extensively tested all this on GPU from HD2xxx to HD6xxx so i know it works with many GL applications for a fact, if you can't even get gears or nexuiz going there is something wrong on your side.

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          • #20
            Jerome, you're probably right, but I'm having the same thing here (Linux 3.3 vanilla, libdrm, mesa and xf86-video-ati all from git yesterday, HD 4550). I'm running the vanilla 3.3 kernel and don't remember now whether that has tiling patches in it, so it COULD be a different bug (see also http://phoronix.com/forums/showthrea...356#post254356).

            Any suggestions for where to start looking for problems?

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            • #21
              Originally posted by pingufunkybeat View Post
              Jerome, you're probably right, but I'm having the same thing here (Linux 3.3 vanilla, libdrm, mesa and xf86-video-ati all from git yesterday, HD 4550). I'm running the vanilla 3.3 kernel and don't remember now whether that has tiling patches in it, so it COULD be a different bug (see also http://phoronix.com/forums/showthrea...356#post254356).

              Any suggestions for where to start looking for problems?
              Again open bugs, attach api trace of problematic gl application, or provide a use case with open source gl application, gave GPU version and all Xorg / kernel log revealent.

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              • #22
                Hrm, while trying to put together a bug report, I narrowed it down to R600_STREAMOUT. Resetting that gave me GL 2.1 again and everything works now.

                Older Mesa versions worked fine, and reported GL 3.0.

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