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Details On The PS4's Radeon GPU With Linux Driver Modifications

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  • Details On The PS4's Radeon GPU With Linux Driver Modifications

    Phoronix: Details On The PS4's Radeon GPU With Linux Driver Modifications

    At this week's Chaos Communication Congress (33C3) one of the talks interesting us is on console hacking, due to the PlayStation 4 making use of a Radeon GPU and the work done to modify the open-source Radeon Linux GPU driver to run on the PS4...

    http://www.phoronix.com/scan.php?pag...on-Driver-Mods

  • #2
    Will those tools help making an open replacement for AMD closed firmware?

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    • #3
      The firmware is the AtomBIOS? Is it the firmware that libv and RadeonHD was trying to replace?

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      • #4
        They also found AMD internal register documentation that should greatly help in rewriting the blobs.

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        • #5
          Originally posted by andrei_me View Post
          The firmware is the AtomBIOS? Is it the firmware that libv and RadeonHD was trying to replace?
          I would love to know about this. Despite he looks a bit loonie, all too smart people look like that. Maybe he's "crazy" enough to tell the truth and don't play the corporate sucking game

          Originally posted by Mathias View Post
          They also found AMD internal register documentation that should greatly help in rewriting the blobs.
          Can it be used without making certain developers angry? If don't, it will never be used in the official MESA code :P

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          • #6
            I'm guessing that the DP is more capable than HDMI port (e.g. HDMI can't do the 3D that Sony needed} and that's why it's used. Or maybe they just wanted to do it weirdly.

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            • #7
              Originally posted by timofonic View Post
              Can it be used without making certain developers angry? If don't, it will never be used in the official MESA code :P
              Given that some drivers are written entirely without blessed register documentation, I'd assume that the worst case would be needing some intermediary to write new documentation after reading the old, to ensure it qualifies as clean-room reverse-engineering.

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              • #8
                Originally posted by timofonic View Post

                I would love to know about this. Despite he looks a bit loonie, all too smart people look like that.
                That's a fallacy that Hollywood, and popular media in general, continue to parade about.
                The Imitation Game is a fairly recent example.

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                • #9
                  Originally posted by timofonic View Post
                  Can it be used without making certain developers angry? If don't, it will never be used in the official MESA code :P
                  He was asked if they wanted to upstream the code. He commented, that he knew that at least one AMD dev didn't want anything to do with the code. But then again AMD couldn't stop them from upstreaming this the kernel... The question is at minute 45 if you want to hear the reply.

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                  • #10
                    I liked watching this and hope it will lead to more interesting work.

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