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  • #1

    amdgpu questions

    These are some questions for bridgman / other AMD guys that I don't think have been answered before:

    - how high on the priority list is DP audio? Does it depend on DAL being merged?

    - how high on the priority list is FreeSync? Does it depend on DAL being merged?

    - do you have any plans to unify the firmware used by the radeon/amdgpu drivers? For example radeon uses radeon/BONAIRE_uvd.bin and radeon/BONAIRE_vce.bin for all Sea Islands cards while amdgpu uses chipset specific blobs. I know most people will not even notice this, but it's annoying when having the driver built-in.
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  • #2
    These are definitely "other guys" questions
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    • #3
      Does it look like SI will be supported by amdgpu when the early vulkan driver will be released or will it take longer?

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      • #4
        Originally posted by haagch View Post
        Does it look like SI will be supported by amdgpu when the early vulkan driver will be released or will it take longer?
        If we are able to get an early amdgpu hybrid driver out (to get Vulkan into users hands sooner) then it will not include SI support for sure.
        Last edited by bridgman; 07 March 2016, 02:02 PM.
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        • #5
          Thanks for the answer.

          That sucks though. So nvidia doesn't support Fermi, intel is only mostly finished on Broadwell and newer and still has a lot to do for Ivy Bridge and Haswell and AMD doesn't have anything public yet and will yet need longer for SI. That's not the Vulkan launch we all hoped for...
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          • #6
            For better or worse this is what open standard launches look like.

            The only way you're going to get frozen specs, polished drivers and ready-to-go apps all lined up for the launch is if there's another 6-12 months of work in secret after the standard is mostly settled, and I don't think anyone wanted to see that.

            What you got was each vendor implementing on at least one platform (typically the newest) in order to be able to contribute intelligently to the evolving API spec discussions. Once the spec settled down and was ratified (which is basically what triggered the NDA lift) the rest of the work could start.
            Last edited by bridgman; 07 March 2016, 05:01 PM.
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            • #7
              Something something the hero we deserve, but not the one we need right now

              I'm not complaining about the spec launch. Spec is better than no spec. Early drivers are better than no drivers.

              Still, having Vulkan capable GPUs and no finished drivers...



              It's kinda the early availability of DirectX12 that put so high expectations on Vulkan. People were running DirectX12 test applications on hardware from all 3 major GPU vendors almost a full year ago... No design by committee and no cross platform functionality must be a huge productivity boost... Maybe we still can have hope that DirectX12 may have other shortcomings Vulkan doesn't have..

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              • #8
                Originally posted by haagch View Post
                Still, having Vulkan capable GPUs and no finished drivers...
                If it makes things seem any better you have no finished apps either...
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                • #9
                  Originally posted by Ansla View Post
                  - how high on the priority list is DP audio? Does it depend on DAL being merged?
                  It's already implemented in radeon. For amdgpu, it requires DAL.

                  Originally posted by Ansla View Post
                  - how high on the priority list is FreeSync? Does it depend on DAL being merged?
                  It will require DAL. However, there is a lot of driver independent work required to expose freesync in a generally useful way.

                  Originally posted by Ansla View Post
                  - do you have any plans to unify the firmware used by the radeon/amdgpu drivers? For example radeon uses radeon/BONAIRE_uvd.bin and radeon/BONAIRE_vce.bin for all Sea Islands cards while amdgpu uses chipset specific blobs. I know most people will not even notice this, but it's annoying when having the driver built-in.
                  They use the same firmware with the exception of the UVD and VCE firmware. The only difference in the UVD and VCE firmware is the lack of support in radeon for handling the new firmware header format for UVD and VCE. It someone is interested, they could port the support for the new header format from amdgpu to radeon. However, there is no real advantage to doing so feature-wise other than to share the same firmware image so it's not something we are planning to do.
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                  • #10
                    I see the radeon feature matrix has been updated w/ this info: http://www.x.org/wiki/RadeonFeature/
                    listed done for HDMI audio and TODO for DP before, I think...
                    Will pre-VI cards used with amdgpu also support HDMI/DP audio?

                    Can you tell if the open vulkan userspace driver is going to be the same one, transitioned to foss or a project on it's own?

                    Do you think it would make sense to implement ogl on top of vk (once the vk driver is done) for a vendor-independent ogl 4.x implementation?

                    Originally posted by bridgman View Post
                    If it makes things seem any better you have no finished apps either...
                    Do selected devs have access to an early vk implementation of AMD for linux?

                    Can we expect day 1 support for post-VI cards?

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