[igt-dev] [PATCH i-g-t 0/9] Chamelium VC4 plane testing, with T-tiled mode

Paul Kocialkowski
2018-12-06T14:13:40Z

This series introduces the required plumbing for allocating buffers in
the VC4 T-tiled mode and converting to that mode from XR24 linear
buffers.

With that in place, a new Chamelium test is introduced to perform some
testing of planes with randomized properties. VC4-specific features such
as T-tiled mode, bandwidth limitation and overrun detection are also
tested.

It should be noted that the VC4 driver apaprently does not recover well
from underruns with the Chamelium, leading to "flip_done timed out"
errors in subsequent runs (until a reboot).

This series is based on Maxime Ripard's series:
igt: chamelium: Test YUV buffers using the Chamelium

Paul Kocialkowski (9):
chamelium: Pass dimensions instead of mode to pattern generation
helper
chamelium: Pass the pattern block size as argument to helpers
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_vc4: Add helpers for converting linear to T-tiled XRGB buffers
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
chamelium: Add a CRC-based display test for randomized planes

lib/drmtest.c | 10 ++
lib/drmtest.h | 2 +
lib/igt_fb.c | 87 ++++++++++-
lib/igt_fb.h | 4 +
lib/igt_vc4.c | 96 ++++++++++++
lib/igt_vc4.h | 4 +
tests/kms_chamelium.c | 352 ++++++++++++++++++++++++++++++++++++++++--
7 files changed, 537 insertions(+), 18 deletions(-)

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2.19.2