[meta-freescale] Vivante GPU on i.MX6solo

[Otavio Salvador]

On Tue, Mar 25, 2014 at 8:03 AM, Gary Thomas <gary at mlbassoc.com> wrote:
> On 2014-03-24 20:07, Otavio Salvador wrote:
>> Hello Gary,
>>
>> On Mon, Mar 24, 2014 at 12:13 PM, Gary Thomas <gary at mlbassoc.com> wrote:
>>> I have a board which uses the i.MX6solo chip.  This CPU (SOC) has
>>> a different GPU than its cousins i.MX6Q and i.MX6dual.  When I try
>>> to run anything using the accelerated graphics, e.g. X server using
>>> the Vivante libraries, it crashes hard.
>>>
>>> I know that my SOC has a Vivante GC880 whereas the i.MX6Q uses the
>>> Vivante GC2000.
>>>
>>> Is there any way to get Vivante GPU support for my board/SOC?
>>
>> Well, it is lacking a lot of information so it is quite hard to guess.
>> My guess is that you have an old BSP kernel and without the 4.6.9p13
>> patches. When those things happen you see a segfault in Xorg
>> initialization using the Vivante drivers.
>
> This well could be - I use the linux-boundary recipe for 3.0.35+
> (my board is nearly identical to a SabreLite from Boundary Devices)

Currently linux-boundary has it right. It depends if you have dropped
the patches applied in our recipe or not.

> I'm a bit confused by the '4.6.9p13' reference.  Is that part of
> a GPU recipe version?  or a kernel version?

Yes, GPU driver version.

> Can you point me to any discussion of this, or the kernel (which tree)
> revision that made this change, etc?

https://github.com/Freescale/meta-fsl-arm-extra/commit/37c793bea49a1140a414660c262d62c3e2b130c9

-- 
Otavio Salvador                             O.S. Systems
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