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DMA-BUF Cross-Device Synchronization Hits Linux 3.17

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  • #11
    Originally posted by M?P?F View Post
    It will be usable by all the drivers using prime. NVIDIA's driver included.
    Was DMA-BUF symbols GPL only?
    ... Goes to check.
    Yep: All the symbols I see are still EXPORT_SYMBOL_GPL making them invisible to any proprietary drivers.

    - Gilboa
    DEV: Intel S2600C0, 2xE52658V2, 32GB, 4x2TB + 2x3TB, GTX1080, F27/x86_64, Dell UP3216Q 4K.
    SRV: Intel S5520SC, 2xX5680, 36GB, 4x2TB, GTX550, F27/x86_64, Dell U2711..
    BACK: Tyan Tempest i5400XT, 2xE5335, 8GB, 3x1.5TB, 9800GTX, F27/x86-64.
    LAP: ASUS Strix GL502V, i7-6700HQ, 32GB, 1TB+256GB, 1070M, F27/x86_64.

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    • #12
      Originally posted by gilboa View Post
      Was DMA-BUF symbols GPL only?
      ... Goes to check.
      Yep: All the symbols I see are still EXPORT_SYMBOL_GPL making them invisible to any proprietary drivers.

      - Gilboa
      Nvidia uses a shim to access dma-buf.

      PRIME offloading works just fine with the proprietary driver.

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      • #13
        Originally posted by LLStarks View Post
        Nvidia uses a shim to access dma-buf.

        PRIME offloading works just fine with the proprietary driver.
        Thanks.
        DEV: Intel S2600C0, 2xE52658V2, 32GB, 4x2TB + 2x3TB, GTX1080, F27/x86_64, Dell UP3216Q 4K.
        SRV: Intel S5520SC, 2xX5680, 36GB, 4x2TB, GTX550, F27/x86_64, Dell U2711..
        BACK: Tyan Tempest i5400XT, 2xE5335, 8GB, 3x1.5TB, 9800GTX, F27/x86-64.
        LAP: ASUS Strix GL502V, i7-6700HQ, 32GB, 1TB+256GB, 1070M, F27/x86_64.

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        • #14
          Any update on the userspace drivers? Playing with PRIME is still not an option for any halfway serious gamer. Just look at this: https://imgur.com/a/z042B
          It's far too jarring and distracting having this stuff and the images don't even show the flickering of old frames that's happening all the time. If your brain picks up the wrong frames it's practically impossible to aim properly.

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