Re: [meta-ti][scarthgap][RFC 6/6] mesa-pvr: Use mesa-pvr for all TI SoCs

[Randolph Sapp <rs@ti.com>]

On Fri Sep 12, 2025 at 11:38 AM CDT, Andrew Davis wrote:
> On 9/9/25 3:52 PM, Randolph Sapp wrote:
>> On Tue Sep 9, 2025 at 10:10 AM CDT, Andrew Davis wrote:
>>> TI SoCs without GPUs can still use mesa-pvr as it will simply fallback to
>>> SW rendering just like the normal mesa package. The benefit is using the
>>> same version across all supported devices is more consistent and only
>>> one version of Mesa is needed for all TI SoCs.
>>>
>>> Signed-off-by: Andrew Davis <afd@ti.com>
>>> ---
>> 
>> [snip]
>> 
>> Originally this was done to mitigate damage in the event where there is an
>> issue with mesa. I'm not entirely sure we want to move everything over to
>> pvr-mesa as they still hijack some of the common dri code for their own goofy
>> stuff.
>> 
>
> Fair point, would be nice if the PVR support didn't touch the core/common DRI
> at all. Having this the common Mesa for all boards would help in identifying
> if they broke anything in the common/sw rendering side though, right now we
> would only find those bugs if one was both using a device with GPU *and* it
> falls back to SW.
>
>> My opinion is we should use vanilla software where we can. Especially
>> considering we'll need to be able to access vanilla mesa for AM62 later if I get
>> my way.
>> 
>
> Could you expand on that? Outside of the eventual switch to the upstream
> PVR driver, what would we need vanilla mesa for on AM62?
>
> Andrew

Ah, not much to expand on really. Upstream driver needs vanilla mesa, and I'd
like to avoid shipping hacked libraries on devices that don't need em.

- Randolph