Ensure progress for dma_fence_array

[Christian König]

Am 09.11.24 um 01:32 schrieb Chia-I Wu:
> On Fri, Nov 8, 2024 at 1:43 AM Christian König
> <ckoenig.leichtzumerken at gmail.com> wrote:
>> Hi guys,
>>
>> as pointed out by Chia-I userspace doesn't see any progress when
>> signaling is not enabled and Boris noted that this is because
>> dma_fence_array_signaled() never returns true in this case.
>>
>> Improve this by fixing the dma_fence_array_signaled() implementation to
>> also return true even if signaling was never explicitely enabled.
> Yeah, this fixes the timeout I was seeing on panvk.

Any objections to add your Tested-by?

>
>> We should probably adjust the documentation as well that when the
>> callback is implemented it should make progess visible even without
>> enabling signaling.
> That would be really nice.  Both dma_fence_is_signaled and
> dma_fence_ops::signaled explicitly state otherwise at the moment.

I have put that on my TODO list, but could take a while until I have 
time for it.

If anybody wants to make suggestions on the wording feel free to make a 
patch.

Thanks,
Christian.

>
>
>
>> Please test and review,
>> Christian.
>>
>>