Hi Javier, On Tue, Jun 14, 2022 at 02:58:29PM +0200, Javier Martinez Canillas wrote: > Hello José, > > On 6/13/22 19:17, José Expósito wrote: > > [snip] > > > +KUnit (Kernel unit testing framework) provides a common framework for unit tests > > +within the Linux kernel. > > + > > I think that it will be useful to have a reference to the KUnit kernel doc here, > something like the following: > > `KUnit <https://docs.kernel.org/dev-tools/kunit/index.html>`_ (Kernel Unit... There is a link in the next paragraph. Once the documentation is generated the path "Documentation/dev-tools/kunit/start.rst" is transformed into a link. > > +This section covers the specifics for the DRM subsystem. For general information > > +about KUnit, please refer to Documentation/dev-tools/kunit/start.rst. > > + > > +How to run the tests? > > +~~~~~~~~~~~~~~~~~~~~~ > > + > > +In order to facilitate running the test suite, a configuration file is present > > +in ``drivers/gpu/drm/kunit/.kunitconfig``. It can be used by ``kunit.py`` as > > +follows: > > + > > +.. code-block:: bash > > + > > + $ ./tools/testing/kunit/kunit.py run --kunitconfig=drivers/gpu/drm/kunit \ > > + --kconfig_add CONFIG_VIRTIO_UML=y \ > > + --kconfig_add CONFIG_UML_PCI_OVER_VIRTIO=y > > + > > +.. note:: > > + The configuration included in ``.kunitconfig`` should be as generic as > > + possible. > > + ``CONFIG_VIRTIO_UML`` and ``CONFIG_UML_PCI_OVER_VIRTIO`` are not > > + included in it because they are only required for User Mode Linux. > > + > > + > > Maybe also add something like this ? > > For example, the following command can be used to run the test for x86_64: > > $ ./tools/testing/kunit/kunit.py run --kunitconfig=drivers/gpu/drm/kunit \ > --arch=x86_64 I didn't want to go into much detail because the KUnit docs are a very good resource and already explain how to run the tests in your favorite architecture. Since running the test on x86_64 should not change the results, I'd prefer to keep it simple and trust the KUnit docs for the "advanced" options. > Regardless, the patch looks good to me: > > Reviewed-by: Javier Martinez Canillas <javierm@xxxxxxxxxx> Thanks a lot for taking the time to review it. I'll add the tag if a v4 is required after chatting with the guys working on the AMDGPU tests. Jose > -- > Best regards, > > Javier Martinez Canillas > Linux Engineering > Red Hat >
