Re: [igt-dev] [PATCH RFC i-g-t 0/8] tests/kms_universal_plane: divide `functional_test_pipe` to mini-subtests

[Alex Hung <alex.hung@amd.com>]

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Hi Aemad,

Thanks for breaking the test into smaller subtests.

Some GPU drivers, including amdgpu, do not allow primary plane off 
without turning crtc off 
(https://elixir.bootlin.com/linux/latest/source/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c#L385), 
but kms_universal_plane has many the below code which was guarded with 
is_amdgpu_device()

         igt_plane_set_fb(primary, NULL);
         igt_display_commit2(&data->display, COMMIT_UNIVERSAL);

Many of the is_amdgpu_device() are not present in your patches and 
kms_universal fails. I needed to add is_amdgpu_device() to patch 2~3 and 
5~7 (I didn't check 8).


------------------------------------------------------------------------
*From:* aemad <aemad@igalia.com>
*Sent:* 11 November 2022 01:31
*To:* igt-dev@lists.freedesktop.org <igt-dev@lists.freedesktop.org>
*Cc:* petri.latvala@intel.com <petri.latvala@intel.com>; 
bhanuprakash.modem@intel.com <bhanuprakash.modem@intel.com>; 
ville.syrjala@linux.intel.com <ville.syrjala@linux.intel.com>; Siqueira, 
Rodrigo <Rodrigo.Siqueira@amd.com>; Hung, Alex <Alex.Hung@amd.com>; 
markyacoub@chromium.org <markyacoub@chromium.org>; mwen@igalia.com 
<mwen@igalia.com>; andrealmeid@igalia.com <andrealmeid@igalia.com>
*Subject:* Re: [PATCH RFC i-g-t 0/8] tests/kms_universal_plane: divide 
`functional_test_pipe` to mini-subtests
Please, let me know your thoughts.

On 2022-11-11 09:29, Alaa Emad wrote:
 > Divide the `functional_test_pipe` test into seven subtests based on CRC
 > comparisons because this will make it easier to debug the test and help
 > in detecting the failure.
 >
 > First 7 patches decouple each subtest and run it individually keeping
 > `functional_test_pipe' test as it is. After making sure that each
 > subtest can run individually with the expected result on both vkms 
and i915
 > drivers, improve the test by creating `run_functional_test_pipe` and
 > call all subtests from it and call `run_functional_test_pipe` in
 > `igt_main`.
 >
 >
 > Alaa Emad (8):
 >   tests/kms_universal_plane: decouple verification of legacy and atomic
 >     api
 >   tests/kms_universal_plane: decouple verification of disabling primary
 >     plane
 >   tests/kms_universal_plane: decouple verification of re-enabling
 >     primary plane
 >   tests/kms_universal_plane: decouple verification of setup plane FB's
 >     while CRTC is disabled
 >   tests/kms_universal_plane: decouple verification of ablity to modeset
 >     with the primary plane off
 >   tests/kms_universal_plane: decouple verification of ablity to move the
 >     primary plane completely offscreen
 >   tests/kms_universal_plane: decouple verification of ablity to
 >     explicitly disable an already implicitly-disabled primary plane
 >   tests/kms_universal_plane: create the run_functional_test_pipe and
 >     call all tests from it
 >
 >  tests/kms_universal_plane.c | 416 ++++++++++++++++++++++--------------
 >  1 file changed, 261 insertions(+), 155 deletions(-)

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