[Intel-gfx] [PATCH i-g-t 1/3] lib/igt_kms: Drop all stale events on first commit.

[Maarten Lankhorst]

Op 07-12-17 om 16:03 schreef Chris Wilson:
> Quoting Maarten Lankhorst (2017-12-07 13:40:25)
>> I've been trying to make kms_cursor_legacy work when subtests fail.
>> Other subtests will start failing too because of expired events or
>> stale pipe crc. The latter can be resolved in the test, but the former
>> could affect other tests
>>
>> Signed-off-by: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
>> ---
>>  lib/igt_kms.c | 39 ++++++++++++++++++++++++++++++++++++++-
>>  lib/igt_kms.h |  1 +
>>  2 files changed, 39 insertions(+), 1 deletion(-)
>>
>> diff --git a/lib/igt_kms.c b/lib/igt_kms.c
>> index 223dbe4ca565..9e14f071ea57 100644
>> --- a/lib/igt_kms.c
>> +++ b/lib/igt_kms.c
>> @@ -2943,7 +2943,10 @@ display_commit_changed(igt_display_t *display, enum igt_commit_style s)
>>                         output->changed &= 1 << IGT_CONNECTOR_CRTC_ID;
>>         }
>>  
>> -       display->first_commit = false;
>> +       if (display->first_commit) {
>> +               igt_display_drop_events(display);
>> +               display->first_commit = false;
>> +       }
> So I spent quite a bit of time debating whether there is merit in "do
> something; set-first-mode" that this would then clobber. After some
> thought, no that doesn't seem like a wise test construction. I would
> however suggest that we igt_debug() if we drop any events here.
> -Chris

Exactly. I'm using igt_info since it's supposed to be uncommon, is it ok if I upgrade it to a igt_warn() since nothing in CI will trigger it?

~Maarten