[igt-dev] [PATCH v4 0/2] tests/fbdev: Additional tests for resolution and panning

[Thomas Zimmermann]

Hi

Am 05.11.21 um 10:32 schrieb Saarinen, Jani:
> Hi,
>> -----Original Message-----
>> From: Thomas Zimmermann <tzimmermann at suse.de>
>> Sent: perjantai 5. marraskuuta 2021 11.22
>> To: Saarinen, Jani <jani.saarinen at intel.com>; Latvala, Petri
>> <petri.latvala at intel.com>; Syrjala, Ville <ville.syrjala at intel.com>
>> Cc: igt-dev at lists.freedesktop.org
>> Subject: Re: [igt-dev] [PATCH v4 0/2] tests/fbdev: Additional tests for resolution and
>> panning
>>
>> Hi
>>
>> Am 05.11.21 um 09:51 schrieb Saarinen, Jani:
>>> + at Syrjala, Ville who reviewed.
>>>
>>>> -----Original Message-----
>>>> From: igt-dev <igt-dev-bounces at lists.freedesktop.org> On Behalf Of
>>>> Saarinen, Jani
>>>> Sent: perjantai 5. marraskuuta 2021 10.23
>>>> To: Latvala, Petri <petri.latvala at intel.com>; Thomas Zimmermann
>>>> <tzimmermann at suse.de>
>>>> Cc: igt-dev at lists.freedesktop.org
>>>> Subject: Re: [igt-dev] [PATCH v4 0/2] tests/fbdev: Additional tests
>>>> for resolution and panning
>>>>
>>>> Hi,
>>>>
>>>>> -----Original Message-----
>>>>> From: igt-dev <igt-dev-bounces at lists.freedesktop.org> On Behalf Of
>>>>> Petri Latvala
>>>>> Sent: maanantai 1. marraskuuta 2021 16.23
>>>>> To: Thomas Zimmermann <tzimmermann at suse.de>drm_atomic_plane_check
>>>>> Cc: igt-dev at lists.freedesktop.org
>>>>> Subject: Re: [igt-dev] [PATCH v4 0/2] tests/fbdev: Additional tests
>>>>> for resolution and panning
>>>>>
>>>>> On Mon, Nov 01, 2021 at 03:17:54PM +0100, Thomas Zimmermann wrote:
>>>>>> Ping for merging these patches.
>>>>>
>>>>> Merged the lot, thanks.
>>>> Caused now this:
>>>> https://gitlab.freedesktop.org/drm/intel/-/issues/4435
>>>> So failing on several systems.
>>
>> The test tries move the scanout location within the fbdev memory. This works with
>> other drivers.
>>
>> Did you check that i915 supports this? Can you get a full backtrace, so that we see
>> for which parameters it fails.
> Did you check the logs in bug: eg
> https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_939/fi-tgl-1115g4/igt@fbdev@pan.html
> Does this include data you ask for?

I did. The line

    #2 [<unknown>+0x0]

would contain that information. There are no debugging symbols 
available, I guess?

Best regards
Thomas

> 
>>
>> ENOSPC (the reported error) is not in i915's fbdev code. It's only used as error code if
>> we try to write outside of the available video memory, which we don't do here. It
>> could originate from drm_atomic_plane_check() [1].
>>
>> Best regards
>> Thomas
>>
>> [1]
>> https://elixir.bootlin.com/linux/v5.15/source/drivers/gpu/drm/drm_atomic.c#L660
>>
>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Petri Latvala
>>
>> --
>> Thomas Zimmermann
>> Graphics Driver Developer
>> SUSE Software Solutions Germany GmbH
>> Maxfeldstr. 5, 90409 Nürnberg, Germany
>> (HRB 36809, AG Nürnberg)
>> Geschäftsführer: Ivo Totev

-- 
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Ivo Totev
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