[igt-dev] [PATCH i-g-t] tests/kms_panel_fitting: Make test pass on gen9's pipe C

[Maarten Lankhorst]

Op 14-03-18 om 12:04 schreef Chris Wilson:
> Quoting Maarten Lankhorst (2018-03-14 10:54:11)
>> The legacy test fails because it tries scaling on pipe C,
>> because the single scaler is already used for CRTC scaling.
>> On other pipes and newer gens we have 2 scalers, so special
>> case pipe C here.
>>
>> Signed-off-by: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
>> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=105456
>> ---
>>  tests/kms_panel_fitting.c | 8 ++++++++
>>  1 file changed, 8 insertions(+)
>>
>> diff --git a/tests/kms_panel_fitting.c b/tests/kms_panel_fitting.c
>> index 1f087ecc82a0..5dce101003c5 100644
>> --- a/tests/kms_panel_fitting.c
>> +++ b/tests/kms_panel_fitting.c
>> @@ -133,6 +133,14 @@ static void test_panel_fitting(data_t *d)
>>                 igt_plane_set_size(d->plane2, mode->hdisplay-200, mode->vdisplay-200);
>>                 igt_display_commit2(display, COMMIT_UNIVERSAL);
>>  
>> +               /*
>> +                * gen9 pipe C has only 1 scaler shared with the crtc, which
>> +                * means pipe scaling can't work simultaneously with panel
>> +                * fitting.
> + Since this is the legacy path, userspace has to know about the HW
> limitations, whereas atomic can ask.
Considering this test was about making sure both can be used at the same time, I thought it was better not to ask. :)