[igt-dev] [PATCH i-g-t 0/2] Add test for hotplug validation in simulation

[Modem, Bhanuprakash]

Hi Kunal,

On Thu-26-10-2023 12:08 pm, Joshi, Kunal1 wrote:
> Hello Kamil,
> 
> On 10/4/2023 4:06 PM, Kamil Konieczny wrote:
>> Hi Juha-Pekka,
>>
>> On 2023-10-04 at 11:15:25 +0300, Juha-Pekka Heikkila wrote:
>>> On 4.10.2023 8.48, Modem, Bhanuprakash wrote:
>>>> Forgot to add Kamil to the TO/CC list.
>>>>
>>>> On Tue-03-10-2023 02:42 pm, Modem, Bhanuprakash wrote:
>>>>> Hi Kunal,
>>>>>
>>>>> On Sun-01-10-2023 04:00 pm, Kunal Joshi wrote:
>>>>>> Test to validate hotplug in simulation environment we
>>>>>> have scratch pad register 0x4f080 from which we can
>>>>>> trigger uevents such as HPD, VBLANK..etc, Idea is to
>>>>>> have port mapping placed in igtrcthrough which test
>>>>>> can write to 0x4f080 and check if we get hotplug
>>>>> In first glance, do we really need to upstream this test? I am
>>>>> pretty sure, no one (including Intel) is going to use this test from
>>>>> upstream repo (We don't have any simulation environment in public
>>>>> CI).
>>>>>
>>>>> So, we can't merge this.
>>>>>
>>>>> + Kamil, thoughts?
>>>>>
>>> Not sure why this wouldn't fit in upstream? It is valid igt test, 
>>> will be of
>>> interest only for Intel guys hence in in intel directory and when in
>>> upstream it will not be causing issues during backports. We anyway 
>>> already
>>> have more generic tests taking into account if they're being run in
>>> simulated environments.
>>>
>>> /Juha-Pekka
>>>
>> imho this should not be upstreamed as any user outside Intel
>> will not be able to run it. Why it cannot be a subtest with
>> some generic test like kms_hotplug.c with only timeout increased
>> for simulation? Such test may be in upstream if it will work
>> with existing hardware in CI.
>>
>> Regards,
>> Kamil
> 
> This test will only work in presi environment, for testing hotplug in 
> hardware we have kms_chamelium_hpd,
> But we can have it in upstream as someday we may require to run upstream 
> igt's on presi.
> 
> Any thoughts bhanu and JP?

As mentioned in previous replies, I am fine to upstream these changes as 
we are keeping these tests inside the "tests/intel" directory, and 
non-intel users are not going to use these tests.

- Bhanu

> 
> Thanks and Regards
> Kunal Joshi
> 
>