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drm/amd/display: Add legacy plane LUT tests

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[WHY]
The legacy plane color path did not exercise successful shaper, 3D
LUT, and blend LUT programming as a single transaction.

[HOW]
Provide valid legacy LUT blobs and verify that all three plane
color-management stages are enabled.

Assisted-by: Copilot:GPT-5.6-Sol
Reviewed-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Fangzhi Zuo <jerry.zuo@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Hung
2026-07-14 15:22:36 -06:00
committed by Alex Deucher
parent 298eb60f14
commit b99214c2d8
1 changed files with 28 additions and 0 deletions
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28
drivers/gpu/drm/amd/display/amdgpu_dm/tests/amdgpu_dm_color_test.c
View File

@@ -2355,6 +2355,33 @@ static void dm_test_update_plane_color_mgmt_uses_color_caps(struct kunit *test)
0);
}
/**
* dm_test_update_plane_color_mgmt_legacy_luts - Legacy shaper and blend LUTs succeed
* @test: KUnit test context
*/
static void dm_test_update_plane_color_mgmt_legacy_luts(struct kunit *test)
{
const u32 lut3d_entries =
MAX_COLOR_3DLUT_SIZE * MAX_COLOR_3DLUT_SIZE * MAX_COLOR_3DLUT_SIZE;
struct dm_test_color_update_fixture f = dm_test_color_update_setup(test);
struct drm_plane_state *plane_state = &f.dm_plane_state->base;
int ret;
f.adev->dm.dc->caps.color.dpp.hw_3d_lut = true;
f.dm_plane_state->shaper_lut =
dm_test_make_lut_blob(test, MAX_COLOR_LUT_ENTRIES);
f.dm_plane_state->lut3d = dm_test_make_lut_blob(test, lut3d_entries);
f.dm_plane_state->blend_lut =
dm_test_make_lut_blob(test, MAX_COLOR_LUT_ENTRIES);
ret = amdgpu_dm_update_plane_color_mgmt(f.crtc_state, plane_state,
f.dc_plane_state);
KUNIT_EXPECT_EQ(test, ret, 0);
KUNIT_EXPECT_TRUE(test, f.dc_plane_state->cm.flags.bits.shaper_enable);
KUNIT_EXPECT_TRUE(test, f.dc_plane_state->cm.flags.bits.lut3d_enable);
KUNIT_EXPECT_TRUE(test, f.dc_plane_state->cm.flags.bits.blend_enable);
}
/**
* dm_test_update_plane_color_mgmt_plane_ctm - Plane CTM maps to gamut remap
* @test: KUnit test context
@@ -2734,6 +2761,7 @@ static struct kunit_case dm_color_test_cases[] = {
KUNIT_CASE(dm_test_update_plane_color_mgmt_plane_degamma_lut),
KUNIT_CASE(dm_test_update_plane_color_mgmt_rejects_dual_degamma),
KUNIT_CASE(dm_test_update_plane_color_mgmt_uses_color_caps),
KUNIT_CASE(dm_test_update_plane_color_mgmt_legacy_luts),
KUNIT_CASE(dm_test_update_plane_color_mgmt_plane_ctm),
KUNIT_CASE(dm_test_update_plane_color_mgmt_colorop_bypass_pipeline),
KUNIT_CASE(dm_test_update_plane_color_mgmt_colorop_missing_multiplier),