Commit 5a6e8c36 authored by Jessica Zhang's avatar Jessica Zhang Committed by Dmitry Baryshkov
Browse files

drm/tests: Add test for drm_crtc_in_clone_mode() 



Add kunit test to validate drm_crtc_in_clone_mode() helper

Signed-off-by: default avatarJessica Zhang <quic_jesszhan@quicinc.com>
Reviewed-by: default avatarAbhinav Kumar <quic_abhinavk@quicinc.com>
Reviewed-by: default avatarMaxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20241216-concurrent-wb-v4-2-fe220297a7f0@quicinc.com


Signed-off-by: default avatarDmitry Baryshkov <dmitry.baryshkov@linaro.org>
parent eee0912a

drivers/gpu/drm/tests/drm_atomic_state_test.c

+61 −1
Original line number Diff line number Diff line
@@ -17,6 +17,12 @@ 


#define DRM_TEST_CONN_0 BIT(0)



struct drm_clone_mode_test {

	const char *name;

	u32 encoder_mask;

	int expected_result;

};



static const struct drm_display_mode drm_atomic_test_mode = {

	DRM_MODE("1024x768", 0, 65000, 1024, 1048,

		 1184, 1344, 0, 768, 771, 777, 806, 0,
@@ -227,17 +233,71 @@ static void drm_test_check_connector_changed_modeset(struct kunit *test) 
	KUNIT_ASSERT_EQ(test, modeset_counter, initial_modeset_count + 1);

}



/*

 * Test that the drm_crtc_in_clone_mode() helper can detect if a given CRTC

 * state is in clone mode

 */

static void drm_test_check_in_clone_mode(struct kunit *test)

{

	bool ret;

	const struct drm_clone_mode_test *param = test->param_value;

	struct drm_crtc_state *crtc_state;



	crtc_state = kunit_kzalloc(test, sizeof(*crtc_state), GFP_KERNEL);

	KUNIT_ASSERT_NOT_NULL(test, crtc_state);



	crtc_state->encoder_mask = param->encoder_mask;



	ret = drm_crtc_in_clone_mode(crtc_state);



	KUNIT_ASSERT_EQ(test, ret, param->expected_result);

}



static void drm_check_in_clone_mode_desc(const struct drm_clone_mode_test *t,

				      char *desc)

{

	sprintf(desc, "%s", t->name);

}



static const struct drm_clone_mode_test drm_clone_mode_tests[] = {

	{

		.name = "in_clone_mode",

		.encoder_mask = DRM_TEST_ENC_0 | DRM_TEST_ENC_1,

		.expected_result = true,

	},

	{

		.name = "not_in_clone_mode",

		.encoder_mask = DRM_TEST_ENC_0,

		.expected_result = false,

	},

};



KUNIT_ARRAY_PARAM(drm_check_in_clone_mode, drm_clone_mode_tests,

		  drm_check_in_clone_mode_desc);



static struct kunit_case drm_test_check_modeset_test[] = {

	KUNIT_CASE(drm_test_check_connector_changed_modeset),

	{}

};



static struct kunit_case drm_in_clone_mode_check_test[] = {

	KUNIT_CASE_PARAM(drm_test_check_in_clone_mode,

			 drm_check_in_clone_mode_gen_params),

	{}

};



static struct kunit_suite drm_test_check_modeset_test_suite = {

	.name = "drm_validate_modeset",

	.test_cases = drm_test_check_modeset_test,

};



kunit_test_suite(drm_test_check_modeset_test_suite);

static struct kunit_suite drm_in_clone_mode_check_test_suite = {

	.name = "drm_validate_clone_mode",

	.test_cases = drm_in_clone_mode_check_test,

};



kunit_test_suites(&drm_in_clone_mode_check_test_suite,

		  &drm_test_check_modeset_test_suite);



MODULE_AUTHOR("Jessica Zhang <quic_jesszhan@quicinc.com");

MODULE_DESCRIPTION("Test cases for the drm_atomic_helper functions");