[PATCH i-g-t 0/2] RFC: Add preferred FB modifier helper

[Jeevan B <jeevan.b@intel.com>]

Add an IGT‑internal modifier, IGT_FORMAT_MOD_PREFERRED, allowing
tests to request the preferred tiling format without hardcoding
driver‑specific modifiers.

A follow‑up HAX patch updates kms_cursor_legacy to use this modifier
for cursor framebuffer creation to exercise the new code paths.

Jeevan B (2):
  lib/igt_fb: Add IGT_FORMAT_MOD_PREFERRED helper modifier
  HAX: kms_cursor_legacy: Use IGT_FORMAT_MOD_PREFERRED for cursor FBs

 lib/igt_fb.c              | 27 ++++++++++++++++++++++++++-
 lib/igt_fb.h              | 21 +++++++++++++++++++++
 tests/kms_cursor_legacy.c | 31 ++++++++++++++++---------------
 3 files changed, 63 insertions(+), 16 deletions(-)

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2.43.0