[Letux-kernel] Lay common foundation to make PVR/SGX work without hacks on OMAP34xx, OMAP36xx, AM335x and potentially OMAP4, OMAP5

[Tomi Valkeinen]

On 23/01/18 18:22, H. Nikolaus Schaller wrote:

>> Well, you can refer to
>>
>> https://dri.freedesktop.org/docs/drm/gpu/drm-uapi.html#open-source-userspace-requirements
> 
> Interesting.
> 
> But I don't see how it is related to OMAP-SGX at all (except that
> it is about a GFX subsystem).
> 
> I understand that this is for the case we would plan to craft a proper
> DRM based solution so that DRM API and user space libs can be used.

At least the latest SGX driver is DRM based. But true, the old driver
may not be. But if it's not, I think it's even more unlikely that it
would be merged to mainline.

> This is obviously far beyond feasibility and maybe the fifth or tenth step.
> 
> But we want to do what can be done.
> 
> My idea is also to get it placed in drivers/staging/pvr and not
> drivers/gpu/drm.

I don't think staging wants to merge something that's never going to be
moved out from staging.

And note that I'm not trying dismiss the work you've done, I think it's
great to clean up the old driver if people use it. I'm just trying to be
realistic about the possible goals =).

 Tomi

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