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Radeon/AMDGPU Updates For The Linux 4.8 Kernel

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  • Radeon/AMDGPU Updates For The Linux 4.8 Kernel

    Phoronix: Radeon/AMDGPU Updates For The Linux 4.8 Kernel

    Alex Deucher has submitted the main feature pull request for DRM-Next of the Radeon and AMDGPU DRM driver changes for the next kernel cycle, Linux 4.8...

    http://www.phoronix.com/scan.php?pag...Linux-4.8-Next

  • #2
    The pull request also contains patches which pick up new SMC microcode (with a _k suffix) for some SI/CI boards, which may improve stability for 390/390X users.

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    • #3
      Note that drm-next requires a merge with drm-fixes for stability on polaris cards as all of the polaris fixes have been going to the fixes tree.

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      • #4
        Originally posted by bridgman View Post
        The pull request also contains patches which pick up new SMC microcode (with a _k suffix) for some SI/CI boards, which may improve stability for 390/390X users.
        Why suffix, do we need both _k and non k to be available ?

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        • #5
          The new SMC ucode works with newer chips; previous ucode still recommended for older chips. Basically 290 vs 390 AFAICS.

          The chips have an internal revision number that we use to determine the appropriate ucode.
          Last edited by bridgman; 08 July 2016, 12:16 PM.

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          • #6
            Ah OK, so for 3xx series goes _k otherwise non _k for older.

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            • #7
              Originally posted by bridgman View Post
              The pull request also contains patches which pick up new SMC microcode (with a _k suffix) for some SI/CI boards, which may improve stability for 390/390X users.
              Indeed the _k suffix microcodes solved stability issues on my R9 390. The remaining issue is that mclk adjustments are causing monitor flickering, so I am forcing mclk to be locked to either the low frequency or the high frequency.

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              • #8
                The AMDGPU overclocking support would be the main end-user feature for Linux 4.8 when it comes to Radeon/AMDGPU.
                I guess that means, everybody should overclock their chips now But first all developers and then testers

                Well Michael, you can test it fine with your cards... if it moves - it works, if it burns - it works
                Last edited by dungeon; 08 July 2016, 12:54 PM.

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                • #9
                  What is the status for the AMDGPU-PRO support for GCN 1.1 and GCN 1.0 cards with 4.8 kernel?

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                  • #10
                    Originally posted by mj13 View Post
                    What is the status for the AMDGPU-PRO support for GCN 1.1 and GCN 1.0 cards with 4.8 kernel?
                    I guess pro mostly depends on situation in Ubuntu 16.10

                    That Ubuntu should use 4.8 kernel AFAIK, but what dkms module pro will ship at the time is yet to be seen, etc...
                    Last edited by dungeon; 08 July 2016, 01:44 PM.

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