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drm/amd/display: Add KUnit tests for crtc set_static_screen_optimze

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Add dm_test_crtc_set_static_screen_optimze_sr_entry_psr and
dm_test_crtc_set_static_screen_optimze_psr_su_skips to cover the
allow_sr_entry == true path of amdgpu_dm_crtc_set_static_screen_optimze():
the replay/PSR event updates when psr_version < DC_PSR_VERSION_SU_1, and
skipping the PSR event update when psr_version is DC_PSR_VERSION_SU_1.

Assisted-by: Copilot:Claude-Opus-4.8
Reviewed-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com>
Signed-off-by: Roman Li <roman.li@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Bhawanpreet Lakha 2026-07-20 16:37:38 -04:00 committed by Alex Deucher
parent 466a270202
commit be784e161a
1 changed files with 55 additions and 0 deletions
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55
drivers/gpu/drm/amd/display/amdgpu_dm/tests/amdgpu_dm_crtc_test.c
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@ -756,6 +756,59 @@ static void dm_test_crtc_set_static_screen_optimze_no_sr_entry(struct kunit *tes
amdgpu_dm_crtc_set_static_screen_optimze(dm, stream, false, false);
}
/**
* dm_test_crtc_set_static_screen_optimze_sr_entry_psr - Test SSO toggle drives PSR
* @test: The KUnit test context
*
* With self-refresh entry allowed and a PSR version below DC_PSR_VERSION_SU_1,
* the function must run both the replay and PSR event updates. The link has no
* replay/PSR feature enabled, so both event helpers short-circuit safely. Both
* SSO states are exercised to cover the set_vsync_event computation.
*/
static void dm_test_crtc_set_static_screen_optimze_sr_entry_psr(struct kunit *test)
{
struct amdgpu_display_manager *dm;
struct dc_link *link;
struct dc_stream_state *stream;
dm = kunit_kzalloc(test, sizeof(*dm), GFP_KERNEL);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dm);
link = dm_kunit_alloc_link(test);
stream = dm_kunit_alloc_stream(test, link);
/* psr_version < DC_PSR_VERSION_SU_1 -> PSR event branch is taken. */
link->psr_settings.psr_version = DC_PSR_VERSION_1;
amdgpu_dm_crtc_set_static_screen_optimze(dm, stream, true, true);
amdgpu_dm_crtc_set_static_screen_optimze(dm, stream, false, true);
}
/**
* dm_test_crtc_set_static_screen_optimze_psr_su_skips - Test PSR SU skips PSR event
* @test: The KUnit test context
*
* With self-refresh entry allowed and a PSR version of DC_PSR_VERSION_SU_1, the
* function must update the replay event but skip the PSR event update.
*/
static void dm_test_crtc_set_static_screen_optimze_psr_su_skips(struct kunit *test)
{
struct amdgpu_display_manager *dm;
struct dc_link *link;
struct dc_stream_state *stream;
dm = kunit_kzalloc(test, sizeof(*dm), GFP_KERNEL);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dm);
link = dm_kunit_alloc_link(test);
stream = dm_kunit_alloc_stream(test, link);
/* psr_version >= DC_PSR_VERSION_SU_1 -> PSR event branch is skipped. */
link->psr_settings.psr_version = DC_PSR_VERSION_SU_1;
amdgpu_dm_crtc_set_static_screen_optimze(dm, stream, true, true);
}
/* Tests for amdgpu_dm_crtc_enable_vblank() */
/**
@ -1295,6 +1348,8 @@ static struct kunit_case amdgpu_dm_crtc_tests[] = {
KUNIT_CASE(dm_test_idle_worker_enabled_runs_body),
/* amdgpu_dm_crtc_set_static_screen_optimze */
KUNIT_CASE(dm_test_crtc_set_static_screen_optimze_no_sr_entry),
KUNIT_CASE(dm_test_crtc_set_static_screen_optimze_sr_entry_psr),
KUNIT_CASE(dm_test_crtc_set_static_screen_optimze_psr_su_skips),
/* amdgpu_dm_crtc_enable_vblank */
KUNIT_CASE(dm_test_crtc_enable_vblank_rejects_unconfigured),
/* amdgpu_dm_crtc_update_crtc_active_planes */