drm/xe/tests: add live KUnit coverage for BO page-size allocation modes

Browse source

Add live KUnit coverage for the debug-controlled BO
    page-size allocation modes.

    The new tests cover forced 2M mode, forced 1G mode,
    and mixed mode. They verify that user BO creation applies
    the expected NEEDS_* flags, that no unexpected page-size flags are
    added in the forced modes, that BO size is rounded as expected, and
    that page_alignment matches the selected leaf size.

    The mixed-mode test does not assume a strict per-allocation rotation
    sequence, since the device-global mixed-mode index may be perturbed by
    concurrent BO creation on a live system. Instead,
    it validates that each allocation results in
    one valid mixed-mode page-size outcome.

    Treat transient VRAM allocation failures as skipped test cases so the
    tests can run in varying live environments without producing false
    failures.

    v3
    - address review comments
    - rework mixed-mode test to avoid assuming strict rotation order
    - reword commit message
    v4
    - skip VRAM-targeted live tests on non-dGFX devices
    v5
    - advance the mixed-mode index in the test
    v6
    - Gaurd kunit tests under CONFIG_DRM_XE_DEBUG_PAGE_SIZE
    v9
    - consider XE_VRAM_FLAGS_NEED64K in mixed mode for certain
      platoform min alignment expectations.

Signed-off-by: Nareshkumar Gollakoti <naresh.kumar.g@intel.com>
Reviewed-by: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>
Link: https://patch.msgid.link/20260729121843.1255891-7-naresh.kumar.g@intel.com
Signed-off-by: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>

...

This commit is contained in:

Nareshkumar Gollakoti 2026-07-29 17:48:43 +05:30 • committed by Himal Prasad Ghimiray

parent 41a74ed31f

commit 60693b580a

2 changed files with 248 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

242

drivers/gpu/drm/xe/tests/xe_bo.c

View file

6

drivers/gpu/drm/xe/tests/xe_live_test_mod.c

View file