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AMDGPU vs. Radeon DRM With Linux 4.14 On GCN 1.0/SI GPUs

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  • AMDGPU vs. Radeon DRM With Linux 4.14 On GCN 1.0/SI GPUs

    Phoronix: AMDGPU vs. Radeon DRM With Linux 4.14 On GCN 1.0/SI GPUs

    It's been a while since last testing the older GCN 1.0 "Southern Islands" graphics cards with the AMDGPU DRM driver rather than the default Radeon DRM driver. Here are some fresh comparison tests using some original GCN graphics cards with the two DRM drivers while pairing it with Mesa 17.4-dev, including Vulkan tests that are made possible by switching over to the AMDGPU Direct Rendering Manager driver.

    http://www.phoronix.com/vr.php?view=25432

  • #2
    Typos:

    Originally posted by phoronix View Post
    Mesa 17.4.-dev
    Originally posted by phoronix View Post
    GCN 1.0 Sothern Islands
    Originally posted by phoronix View Post
    where the Vulkan performance tends to outpace OpenCL.
    Last edited by tildearrow; 10-29-2017, 04:48 PM.

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    • #3
      so once 4.15 lands it will be better to use amdgpu for everything (it isn't now due to no hdmi audio...)

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      • #4
        What was the issue with Dawn of War III? Rendering issues or not running at all?

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        • #5
          Originally posted by aejsmith View Post
          What was the issue with Dawn of War III? Rendering issues or not running at all?
          on startup it would show the loading screen and then drop down to the Feral black message box about... Vulkan error -1 or -2, forgot off hand and had meant to upload it for the article but missed out on it before wiping the disk.
          Michael Larabel
          http://www.michaellarabel.com/

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          • #6
            Originally posted by Michael View Post

            on startup it would show the loading screen and then drop down to the Feral black message box about... Vulkan error -1 or -2, forgot off hand and had meant to upload it for the article but missed out on it before wiping the disk.
            Ah, OK. Please do let us know (send an email to vulkanfeedback@feralinteractive.com) if you get anything like that, it's always possible it's an issue on our end and not a driver issue.

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            • #7
              so why we do not fix Dawn of War III on AMDGPU and then we kill the Radeon DRM kernel driver for all GCN graphic cards?
              Phantom circuit Sequence Reducer Dyslexia

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              • #8
                Originally posted by Qaridarium View Post
                so why we do not fix Dawn of War III on AMDGPU and then we kill the Radeon DRM kernel driver for all GCN graphic cards?
                because we need uvd?

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                • #9
                  Originally posted by Qaridarium View Post
                  so why we do not fix Dawn of War III on AMDGPU and then we kill the Radeon DRM kernel driver for all GCN graphic cards?
                  Fixing Dawn of War 3 Vulkan is not a requirement for making the switch.
                  remember with the current radeon drm driver Vulkan doesn't work at all... So this is not a regression. It's a gain...

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                  • #10
                    Originally posted by davidbepo View Post
                    so once 4.15 lands it will be better to use amdgpu for everything (it isn't now due to no hdmi audio...)
                    I've been using HDMI audio with AMDGPU for quite a while. On this very machine (7870k). Is it not working on some chips or something?

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