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An AMDGPU Branch For Security PSP / HDCP Support

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  • jf33
    replied
    Hopefully this will never make it into the Linux kernel. I would be fine if it's just for AMDGPU-Pro, but I don't want any copy protection crap on my computer.

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  • Mystro256
    replied
    Originally posted by Klassic Six View Post
    This sucks, features like HDMI audio and FreeSync still far from merging in the kernel. I'm okay with current driver and everything but why I can't use the basic features of my GPU just because I'm choose Linux? are we payed less than a Window$ user? and yes I know about David Airlie's respond
    I spoke to Bridgman and a few others the other day about this. I don't personally work on that team, but it seems resources are limited but progress is being made. I was speaking with one of the higher ups (I'm just an engineer not one of those fancy people) and he said they're aiming on producing something that is upstream-able, as maintaining it outside the kernel is a pain.

    In other words (TLDR), it's going to happen, just I have no idea how long it will take.
    Last edited by Mystro256; 20 December 2016, 08:05 PM.

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  • arboy84
    replied
    Open sourcing as much as possible with regard to these DRM (Digital Rights Management) schemes is good in the long run. It will enable others to figure out chinks in the armor and make these anti-user schemes the expensive wastes that they are.

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  • Sevard
    replied
    Originally posted by johanb View Post
    If neither intel nor AMD decided to implement this shit we would all be fine.
    DHCP was developed by Intel, so AMD has really no choice here.

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  • Mystro256
    replied
    Originally posted by Danny3 View Post
    Who needs this crap, besides the companies that want huge piles of money?
    Thanks AMD for developing ANTI-USER features.
    Originally posted by Peter Fodrek View Post


    Maybe it can add some services that is to make Linux usage much more attractive to BFUs
    I'm not sure what BFU stands for, but the implementation isn't for most FOSS end users. It doesn't work if the OS and HW aren't locked down all the way from boot (i.e. HW based Secure boot) to the monitor connection (HDCP). If you break the chain anywhere, the PSP just shuts down and disallows protected content if the vender (Hulu, Netflix, etc.) requests it. For example, this is needed for 4K on Netflix to work; every company has it's desired security level we need to implement various levels of widevine (Linux) and Playready (Windows) to meet these needs.

    As I said, it's not forced on anyone, it's just implemented. If your system is one of those OEM locked down systems, it will work, but if your system is customized in anyway, it's just a dead code path that doesn't affect you what so ever, aside from venders denying you content because you don't have the DRM available.

    Realistically we have Windows and Linux customers that pay us money to implement it, so we implement it. Not having it available in Linux is just silliness, as these Linux customers in turn fund a lot of development of the AMDGPU (as in FOSS) driver.

    EDIT: Note that widevine does work without the PSP or other HW equivalent, but at in a "lower security mode". Some some vendors allow it, such as netflix, but will likely limit your connection; for example, I believe Netflix will limit your quality settings depending video you select (I'm assuming depending on the movie studio) and probably also throttle your connection.
    Last edited by Mystro256; 20 December 2016, 12:32 PM.

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  • triangle
    replied
    Can't wait till someone cracks/hacks/leaks the golden keys to the PSP or IME.

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  • Klassic Six
    replied
    This sucks, features like HDMI audio and FreeSync still far from merging in the kernel. I'm okay with current driver and everything but why I can't use the basic features of my GPU just because I'm choose Linux? are we payed less than a Window$ user? and yes I know about David Airlie's respond

    Leave a comment:


  • johanb
    replied
    Originally posted by tomtomme View Post
    they are not developing those, just implenting them. if they won´t do that the users would cry: "why is hdmi-audio not working. where is my netflix?"
    wouldn´t you?
    Don't be a smartass, he is obviously refering to that they are developing the implementation.

    If neither intel nor AMD decided to implement this shit we would all be fine.

    Leave a comment:


  • Peter Fodrek
    replied
    Originally posted by Danny3 View Post
    Who needs this crap, besides the companies that want huge piles of money?
    Thanks AMD for developing ANTI-USER features.

    Maybe it can add some services that is to make Linux usage much more attractive to BFUs

    Leave a comment:


  • Mangix
    replied
    Exactly. Support for HDMI receivers is nice

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