[igt-dev] [PATCH i-g-t v3 00/21] Chamelium VC4 plane fuzzy testing, with SAND and T-tiled mode

[Lyude Paul]

Got up to patch #8, but I haven't finished reviewing yet. Will try to get that
done first thing tommorrow

For now, 1-7 lgtm

On Fri, 2019-01-11 at 10:05 +0100, Paul Kocialkowski wrote:
> This series introduces the required plumbing for allocating buffers in
> the VC4 T-tiled and SAND_tiled modes, along with helpers to convert to
> these tiling modes.
> 
> A new "checkerboard" comparison method is introduced to check whether
> captured frames match their references in cases where pixel-perfect
> results are not possible (e.g. with scaling) and the analog test does
> not provide reliable results.
> 
> With that in place, new tests for the Chamelium are introduced to
> perform testing of planes with randomized properties, both with a
> CRC and frame comparison fashion.
> 
> This series is based on version 3 of Maxime Ripard's series:
>   igt: chamelium: Test YUV buffers using the Chamelium
> 
> Changes since v2:
> * Added support for SAND tiling;
> * Generalized T-tiling to support both 16 and 32 bpp;
> * Split the main test into more sub-functions;
> * Removed explicit lists of DRM formats;
> * Added helper to list known DRM formats;
> * Various functional fixes in the main test;
> * Removed unnecessary pointer init in map_bo;
> * Rebased on v3 of Maxime Ripard's YUV series;
> * Added collected Reviewed-By tags;
> 
> Changes since v1:
> * Added collected Reviewed-by tags;
> * Removed explicit size and constified tiling read order tables;
> * Removed unnecessary MAP_FAILED addition in map_bo;
> * Added pipe and output helpers to count and iterate planes of a given type;
> * Moved CRC debug prints to the chamelium library;
> * Fixed destination stride description for igt_fb_convert_with_stride;
> * Split planes test into a few sub-routines;
> * Removed explicit underrun detection since general error reporting is
> enough;
> * Removed underrun detection bits due to ongoing Chamelium-specific issues;
> * Deconfigured planes before removing their framebuffer, avoiding kmsg
> errors.
> 
> Paul Kocialkowski (21):
>   lib: drmtest: Add helpers to check and require the VC4 driver
>   lib/igt_fb: Add checks on i915 for i915-specific tiled buffer
>     allocation
>   lib/igt_fb: Add support for allocating T-tiled VC4 buffers
>   lib/igt_fb: Add support for VC4 SAND tiling modes
>   lib/igt_fb: Allow interpreting the tile height as a stride equivalent
>   lib/igt_fb: Add a stride-provisioned fashion of igt_fb_convert
>   lib/igt_fb: Add a helper to retreive the plane bpp for a given format
>   lib/igt_fb: Add a helper to fill-in the available DRM formats
>   lib/igt_vc4: Add helpers for converting linear to T-tiled RGB buffers
>   lib/igt_vc4: Add helper for checking T-tiling support on plane
>   lib/igt_vc4: Add helpers for converting linear to SAND-tiled buffers
>   lib/igt_vc4: Add helper for checking SAND tiling support on plane
>   lib/igt_kms: Add helpers to count and iterate planes from pipe
>   lib/igt_kms: Add helpers to count and iterate planes from output
>   lib/igt_chamelium: Fixup resources liberation in comparison helpers
>   lib/igt_chamelium: Split frames dump logic and rework surroundings
>   lib/igt_chamelium: Generalize the frame match helper with check type
>   lib/igt_frame: Add a checkerboard frame comparison method
>   lib/igt_chamelium: Hook-in checkerboard comparison method in helpers
>   chamelium: Move the YUV tests over to the checkerboard checking method
>   chamelium: Add a display test for randomized planes
> 
>  lib/drmtest.c         |  10 +
>  lib/drmtest.h         |   2 +
>  lib/igt_chamelium.c   | 124 +++++++----
>  lib/igt_chamelium.h   |  15 +-
>  lib/igt_fb.c          | 144 ++++++++++++-
>  lib/igt_fb.h          |   6 +
>  lib/igt_frame.c       | 121 +++++++++++
>  lib/igt_frame.h       |   2 +
>  lib/igt_kms.c         |  84 ++++++++
>  lib/igt_kms.h         |   6 +
>  lib/igt_vc4.c         | 242 +++++++++++++++++++++
>  lib/igt_vc4.h         |  42 ++++
>  tests/kms_chamelium.c | 481 ++++++++++++++++++++++++++++++++++++++++--
>  13 files changed, 1204 insertions(+), 75 deletions(-)
> 
-- 
Cheers,
	Lyude Paul