[PATCH v11] drm: Add initial ci/ subdirectory

Maxime Ripard mripard at kernel.org
Wed Aug 30 02:53:42 PDT 2023

On Tue, Aug 22, 2023 at 04:26:06PM +0200, Daniel Vetter wrote:
> On Fri, Aug 11, 2023 at 02:19:53PM -0300, Helen Koike wrote:
> > From: Tomeu Vizoso <tomeu.vizoso at collabora.com>
> > 
> > Developers can easily execute several tests on different devices
> > by just pushing their branch to their fork in a repository hosted
> > on gitlab.freedesktop.org which has an infrastructure to run jobs
> > in several runners and farms with different devices.
> > 
> > There are also other automated tools that uprev dependencies,
> > monitor the infra, and so on that are already used by the Mesa
> > project, and we can reuse them too.
> > 
> > Also, store expectations about what the DRM drivers are supposed
> > to pass in the IGT test suite. By storing the test expectations
> > along with the code, we can make sure both stay in sync with each
> > other so we can know when a code change breaks those expectations.
> > 
> > Also, include a configuration file that points to the out-of-tree
> > CI scripts.
> > 
> > This will allow all contributors to drm to reuse the infrastructure
> > already in gitlab.freedesktop.org to test the driver on several
> > generations of the hardware.
> > 
> > Signed-off-by: Tomeu Vizoso <tomeu.vizoso at collabora.com>
> > Signed-off-by: Helen Koike <helen.koike at collabora.com>
> > Acked-by: Daniel Stone <daniels at collabora.com>
> > Acked-by: Rob Clark <robdclark at gmail.com>
> > Tested-by: Rob Clark <robdclark at gmail.com>
> Ok I pushed this into a topic/drm-ci branch in drm.git and asked sfr to
> include that branch in linux-next.
> But also I'd like to see a lot more acks here, we should be able to at
> least pile up a bunch of (driver) maintainers from drm-misc in support of
> this. Also maybe media, at least I've heard noises that they're maybe
> interested too? Plus anyone else, the more the better.

I'm not really convinced by that approach at all, and most of the issues
I see are shown by the follow-up series here:


  * We hardcode a CI farm setup into the kernel

  * We cannot trust that the code being run is actually the one being
    pushed into gitlab

  * IMO, and I know we disagree here, any IGT test we enable for a given
    platform should work, period. Allowing failures and flaky tests just
    sweeps whatever issue is there under the rug. If the test is at
    fault, we should fix the test, if the driver / kernel is at fault,
    then I certainly want to know about it.

  * This then leads to patches like this one:

    Which (and it's definitely not the author's fault) are just plain
    unreadable, reproducable or auditable by anyone not heavily involved
    in the CI farm operations and the platforms being tested.

That being said, I don't have anything better to suggest than what I
already did, and it looks like I'm alone in thinking that those are
problems, so feel free to add my ack if you want to.

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