[PATCH] gpu/docs: Clarify what userspace means for gl

[zhoucm1]

On 2019年04月25日 03:22, Eric Anholt wrote:
> "Zhou, David(ChunMing)" <David1.Zhou at amd.com> writes:
>
>> Will linux be only mesa-linux? I thought linux is an  open linux.
>> Which will impact our opengl/amdvlk(MIT open source), not sure Rocm:
>> 1. how to deal with one uapi that opengl/amdvlk needs but mesa dont need? reject?
>> 2. one hw feature that opengl/amdvlk developers work on that but no mesa
>> developers work on, cannot upstream as well?
> I believe these questions are already covered by
>
> "+Other userspace is only admissible if exposing a given feature through OpenGL
> or
> +OpenGL ES would result in a technically unsound design, incomplete driver or
> +an implementation which isn't useful in real world usage."
>
> If OpenGL needs the interface, then you need a Mesa implementation.
> It's time for you to work with the community to build that or get it
> built.  Or, in AMD's case, work with the Mesa developers that you
> already employ.
>
> If OpenGL doesn't need it, but Vulkan needs it, then we don't have a
> clear policy in place, and this patch doesn't change that.  I would
> personally say that AMDVLK doesn't qualify given that as far as I know
> there is not open review of proposed patches to the project as they're
> being developed.
Can I understand what you mean is, as soon as the stack is openly 
developed, then which will be able to drive new UAPI?

-David