Re: [Nouveau] [PATCH v3 6/9] drm/nouveau/graph: enable when using external firmware

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On Mon, Apr 28, 2014 at 4:57 PM, Thierry Reding
<thierry.reding@xxxxxxxxx> wrote:
> On Mon, Apr 28, 2014 at 12:10:27PM +1000, Ben Skeggs wrote:
>> On Fri, Apr 25, 2014 at 5:19 PM, Alexandre Courbot <acourbot@xxxxxxxxxx> wrote:
>> > nvc0_graph_ctor() would only let the graphics engine be enabled if its
>> > oclass has a proper microcode linked to it. This prevents GR from being
>> > enabled at all on chips that rely exclusively on external firmware, even
>> > though such a use-case is valid.
>> >
>> > Relax the conditions enabling the GR engine to also include the case
>> > where an external firmware has also been loaded.
>> I'm happy to take this patch as-is.  I do wonder if we should do
>> something like this though:
>>
>> if (nouveau_boolopt(device->cfgopt, "NvGrUseFW", oclass->fecs.ucode == NULL))
>>
>> Which will automatically switch to external firmware if there's no
>> internal implementation available.
>
> I think that makes a lot of sense. Perhaps outputting a warning or so at
> runtime when this happens would be helpful in reminding people that the
> goal is to make the GPU run with nouveau firmware rather than external
> firmware, and hence that there's some work left to do.
That already happens with a "using external firmware" notice.

>
> Thierry
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