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AMD Preps For A Big Linux 4.20 Kernel With Vega 20, Picasso, Raven 2, xGMI, Better DC

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  • AMD Preps For A Big Linux 4.20 Kernel With Vega 20, Picasso, Raven 2, xGMI, Better DC

    Phoronix: AMD Preps For A Big Linux 4.20 Kernel With Vega 20, Picasso, Raven 2, xGMI, Better DC

    It was a busy Friday for the open-source AMD folks as in addition to releasing AMDGPU DDX 18.1 and the big ROCm 1.9 release, their latest batch of feature changes were also submitted to DRM-Next ahead of the Linux 4.20~5.0 kernel cycle. This is going to be another exciting release for Radeon Linux users...

    http://www.phoronix.com/scan.php?pag...RM-Next-4.20-2

  • #2
    Typos:

    Originally posted by phoronix View Post
    bringing ACP power-gating improvements
    (I'm not sure but I've only heard of ACPI)

    Originally posted by phoronix View Post
    THere is also some GPUVM LRU handling efficiency enhancements.

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    • #3
      "LVDS support in the DC code"
      Wasn't LVDS supposed to vanish on newer chips? And isn't DC dealing only with rather recent chips? But I might have missed something here. According to RadeonFeature Kabini generation still has and iirc. Kabini could have experimental coverage by DAL/DC.
      Nice to see that lot of support.
      Stop TCPA, stupid software patents and corrupt politicians!

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      • #4
        Originally posted by phoronix View Post
        Support for load balancing within the AMDGPU/DRM scheduler and making use of that for the engine scheduling.
        This sounds cool, but what is "stutter mode support"?

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        • #5
          LVDS is still on some CIK chips, also VGA connectors but there isnt support for VGA as of yet. My Dell worksation laptop has both and DisplayPort and HDMI.

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          • #6
            Originally posted by RussianNeuroMancer View Post
            This sounds cool, but what is "stutter mode support"?
            I forget the details, but it's a power-saving feature for cases where display is active but nothing else is going on. Periodic long burst reads from memory with a lot of logic powered down in between bursts... something like that.

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            • #7
              The guys at Digital Foundry got their hands on that Chinese console with the custom AMD APU:

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              • #8
                Clearly, this still will only work unless Debian has sanitized it all. It fails the dkms package like clock work.

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                • #9
                  Originally posted by [email protected] View Post
                  The guys at Digital Foundry got their hands on that Chinese console with the custom AMD APU:

                  Sounds more like PC with GDDR5 memory That runs Windows, but we don't have that 15FF ID for amdgpu added yet... hmm, this could be yet another VegaM semi custom, so fake Vega but actually Polaris but who knows

                  ID should be added since it runs Windows and someone from China who have that Subor Z+ might want to run Linux instead, 不是吗

                  Also no idea if they are planning to sell this outside China or this is only locked for China market?

                  OK, it runs on Windows 10 IoT Enterprise (RS1), etc... Z+ new game computer ... translation says and mentioned Z+ OS (Windows 10 based)


                  http://www.playzplus.com

                  No Linux based Z- OS mentionied

                  Or maybe it is Ruyi OS and Ruyi console, no idea what is more up to date there

                  https://github.com/zplus/sdk/blob/ma...s/topics/os.md
                  Last edited by dungeon; 09-16-2018, 12:17 AM.

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                  • #10
                    Please use this kernel cycle to make amdgpu the default kernel driver for sea islands.

                    It's taken a very long time, need to simplify the ecosystem and reduce fragmentation. Having to manually switch in order to use Vulkan trips up non technical Linux users, and makes gaming on linux with AMD look more complex than windows.

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