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Message-Id: <20240212-kms-hdmi-connector-state-v6-14-f4bcdc979e6f@kernel.org>
Date: Mon, 12 Feb 2024 14:12:57 +0100
From: Maxime Ripard <mripard@...nel.org>
To: Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
Thomas Zimmermann <tzimmermann@...e.de>, David Airlie <airlied@...il.com>,
Daniel Vetter <daniel@...ll.ch>, Emma Anholt <emma@...olt.net>,
Jonathan Corbet <corbet@....net>, Sandy Huang <hjc@...k-chips.com>,
Heiko Stübner <heiko@...ech.de>,
Chen-Yu Tsai <wens@...e.org>, Jernej Skrabec <jernej.skrabec@...il.com>,
Samuel Holland <samuel@...lland.org>
Cc: Hans Verkuil <hverkuil@...all.nl>, dri-devel@...ts.freedesktop.org,
linux-arm-kernel@...ts.infradead.org, linux-doc@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-media@...r.kernel.org,
linux-rockchip@...ts.infradead.org, linux-sunxi@...ts.linux.dev,
Maxime Ripard <mripard@...nel.org>,
Dave Stevenson <dave.stevenson@...pberrypi.com>
Subject: [PATCH v6 14/36] drm/tests: Add output bpc tests
Now that we're tracking the output bpc count in the connector state,
let's add a few tests to make sure it works as expected.
Reviewed-by: Dave Stevenson <dave.stevenson@...pberrypi.com>
Signed-off-by: Maxime Ripard <mripard@...nel.org>
---
.../gpu/drm/tests/drm_atomic_state_helper_test.c | 203 +++++++++++++++++++++
drivers/gpu/drm/tests/drm_connector_test.c | 138 ++++++++++++++
2 files changed, 341 insertions(+)
diff --git a/drivers/gpu/drm/tests/drm_atomic_state_helper_test.c b/drivers/gpu/drm/tests/drm_atomic_state_helper_test.c
index 64ba1f6256ba..a1b0e6914cf8 100644
--- a/drivers/gpu/drm/tests/drm_atomic_state_helper_test.c
+++ b/drivers/gpu/drm/tests/drm_atomic_state_helper_test.c
@@ -659,6 +659,138 @@ static void drm_test_check_broadcast_rgb_limited_cea_mode_vic_1(struct kunit *te
KUNIT_EXPECT_FALSE(test, conn_state->hdmi.is_full_range);
}
+/*
+ * Test that if we change the maximum bpc property to a different value,
+ * we trigger a mode change on the connector's CRTC, which will in turn
+ * disable/enable the connector.
+ */
+static void drm_test_check_output_bpc_crtc_mode_changed(struct kunit *test)
+{
+ struct drm_atomic_helper_connector_hdmi_priv *priv;
+ struct drm_modeset_acquire_ctx *ctx;
+ struct drm_connector_state *old_conn_state;
+ struct drm_connector_state *new_conn_state;
+ struct drm_crtc_state *crtc_state;
+ struct drm_atomic_state *state;
+ struct drm_display_mode *preferred;
+ struct drm_connector *conn;
+ struct drm_device *drm;
+ struct drm_crtc *crtc;
+ int ret;
+
+ priv = drm_atomic_helper_connector_hdmi_init(test, 10);
+ KUNIT_ASSERT_NOT_NULL(test, priv);
+
+ ctx = drm_kunit_helper_acquire_ctx_alloc(test);
+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ctx);
+
+ conn = &priv->connector;
+ preferred = find_preferred_mode(conn);
+ KUNIT_ASSERT_NOT_NULL(test, preferred);
+
+ drm = &priv->drm;
+ crtc = priv->crtc;
+ ret = light_up_connector(test, drm, crtc, conn, preferred, ctx);
+ KUNIT_ASSERT_EQ(test, ret, 0);
+
+ state = drm_kunit_helper_atomic_state_alloc(test, drm, ctx);
+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, state);
+
+ new_conn_state = drm_atomic_get_connector_state(state, conn);
+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, new_conn_state);
+
+ old_conn_state = drm_atomic_get_old_connector_state(state, conn);
+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, old_conn_state);
+
+ new_conn_state->hdmi.output_bpc = 8;
+
+ KUNIT_ASSERT_NE(test,
+ old_conn_state->hdmi.output_bpc,
+ new_conn_state->hdmi.output_bpc);
+
+ ret = drm_atomic_check_only(state);
+ KUNIT_ASSERT_EQ(test, ret, 0);
+
+ old_conn_state = drm_atomic_get_old_connector_state(state, conn);
+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, old_conn_state);
+
+ new_conn_state = drm_atomic_get_new_connector_state(state, conn);
+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, new_conn_state);
+
+ KUNIT_ASSERT_NE(test,
+ old_conn_state->hdmi.output_bpc,
+ new_conn_state->hdmi.output_bpc);
+
+ crtc_state = drm_atomic_get_new_crtc_state(state, crtc);
+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, crtc_state);
+ KUNIT_EXPECT_TRUE(test, crtc_state->mode_changed);
+}
+
+/*
+ * Test that if we set the output bpc property to the same value, we
+ * don't trigger a mode change on the connector's CRTC and leave the
+ * connector unaffected.
+ */
+static void drm_test_check_output_bpc_crtc_mode_not_changed(struct kunit *test)
+{
+ struct drm_atomic_helper_connector_hdmi_priv *priv;
+ struct drm_modeset_acquire_ctx *ctx;
+ struct drm_connector_state *old_conn_state;
+ struct drm_connector_state *new_conn_state;
+ struct drm_crtc_state *crtc_state;
+ struct drm_atomic_state *state;
+ struct drm_display_mode *preferred;
+ struct drm_connector *conn;
+ struct drm_device *drm;
+ struct drm_crtc *crtc;
+ int ret;
+
+ priv = drm_atomic_helper_connector_hdmi_init(test, 10);
+ KUNIT_ASSERT_NOT_NULL(test, priv);
+
+ ctx = drm_kunit_helper_acquire_ctx_alloc(test);
+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ctx);
+
+ conn = &priv->connector;
+ preferred = find_preferred_mode(conn);
+ KUNIT_ASSERT_NOT_NULL(test, preferred);
+
+ drm = &priv->drm;
+ crtc = priv->crtc;
+ ret = light_up_connector(test, drm, crtc, conn, preferred, ctx);
+ KUNIT_ASSERT_EQ(test, ret, 0);
+
+ state = drm_kunit_helper_atomic_state_alloc(test, drm, ctx);
+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, state);
+
+ new_conn_state = drm_atomic_get_connector_state(state, conn);
+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, new_conn_state);
+
+ old_conn_state = drm_atomic_get_old_connector_state(state, conn);
+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, old_conn_state);
+
+ KUNIT_ASSERT_EQ(test,
+ new_conn_state->hdmi.output_bpc,
+ old_conn_state->hdmi.output_bpc);
+
+ ret = drm_atomic_check_only(state);
+ KUNIT_ASSERT_EQ(test, ret, 0);
+
+ old_conn_state = drm_atomic_get_old_connector_state(state, conn);
+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, old_conn_state);
+
+ new_conn_state = drm_atomic_get_new_connector_state(state, conn);
+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, new_conn_state);
+
+ KUNIT_EXPECT_EQ(test,
+ old_conn_state->hdmi.output_bpc,
+ new_conn_state->hdmi.output_bpc);
+
+ crtc_state = drm_atomic_get_new_crtc_state(state, crtc);
+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, crtc_state);
+ KUNIT_EXPECT_FALSE(test, crtc_state->mode_changed);
+}
+
static struct kunit_case drm_atomic_helper_connector_hdmi_check_tests[] = {
KUNIT_CASE(drm_test_check_broadcast_rgb_auto_cea_mode),
KUNIT_CASE(drm_test_check_broadcast_rgb_auto_cea_mode_vic_1),
@@ -668,6 +800,8 @@ static struct kunit_case drm_atomic_helper_connector_hdmi_check_tests[] = {
KUNIT_CASE(drm_test_check_broadcast_rgb_limited_cea_mode_vic_1),
KUNIT_CASE(drm_test_check_broadcast_rgb_crtc_mode_changed),
KUNIT_CASE(drm_test_check_broadcast_rgb_crtc_mode_not_changed),
+ KUNIT_CASE(drm_test_check_output_bpc_crtc_mode_changed),
+ KUNIT_CASE(drm_test_check_output_bpc_crtc_mode_not_changed),
{ }
};
@@ -694,8 +828,77 @@ static void drm_test_check_broadcast_rgb_value(struct kunit *test)
KUNIT_EXPECT_EQ(test, conn_state->hdmi.broadcast_rgb, DRM_HDMI_BROADCAST_RGB_AUTO);
}
+/*
+ * Test that if the connector was initialised with a maximum bpc of 8,
+ * the value of the max_bpc and max_requested_bpc properties out of
+ * reset are also set to 8, and output_bpc is set to 0 and will be
+ * filled at atomic_check time.
+ */
+static void drm_test_check_bpc_8_value(struct kunit *test)
+{
+ struct drm_atomic_helper_connector_hdmi_priv *priv;
+ struct drm_connector_state *conn_state;
+ struct drm_connector *conn;
+
+ priv = drm_atomic_helper_connector_hdmi_init(test, 8);
+ KUNIT_ASSERT_NOT_NULL(test, priv);
+
+ conn = &priv->connector;
+ conn_state = conn->state;
+ KUNIT_EXPECT_EQ(test, conn_state->max_bpc, 8);
+ KUNIT_EXPECT_EQ(test, conn_state->max_requested_bpc, 8);
+ KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_bpc, 0);
+}
+
+/*
+ * Test that if the connector was initialised with a maximum bpc of 10,
+ * the value of the max_bpc and max_requested_bpc properties out of
+ * reset are also set to 10, and output_bpc is set to 0 and will be
+ * filled at atomic_check time.
+ */
+static void drm_test_check_bpc_10_value(struct kunit *test)
+{
+ struct drm_atomic_helper_connector_hdmi_priv *priv;
+ struct drm_connector_state *conn_state;
+ struct drm_connector *conn;
+
+ priv = drm_atomic_helper_connector_hdmi_init(test, 10);
+ KUNIT_ASSERT_NOT_NULL(test, priv);
+
+ conn = &priv->connector;
+ conn_state = conn->state;
+ KUNIT_EXPECT_EQ(test, conn_state->max_bpc, 10);
+ KUNIT_EXPECT_EQ(test, conn_state->max_requested_bpc, 10);
+ KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_bpc, 0);
+}
+
+/*
+ * Test that if the connector was initialised with a maximum bpc of 12,
+ * the value of the max_bpc and max_requested_bpc properties out of
+ * reset are also set to 12, and output_bpc is set to 0 and will be
+ * filled at atomic_check time.
+ */
+static void drm_test_check_bpc_12_value(struct kunit *test)
+{
+ struct drm_atomic_helper_connector_hdmi_priv *priv;
+ struct drm_connector_state *conn_state;
+ struct drm_connector *conn;
+
+ priv = drm_atomic_helper_connector_hdmi_init(test, 12);
+ KUNIT_ASSERT_NOT_NULL(test, priv);
+
+ conn = &priv->connector;
+ conn_state = conn->state;
+ KUNIT_EXPECT_EQ(test, conn_state->max_bpc, 12);
+ KUNIT_EXPECT_EQ(test, conn_state->max_requested_bpc, 12);
+ KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_bpc, 0);
+}
+
static struct kunit_case drm_atomic_helper_connector_hdmi_reset_tests[] = {
KUNIT_CASE(drm_test_check_broadcast_rgb_value),
+ KUNIT_CASE(drm_test_check_bpc_8_value),
+ KUNIT_CASE(drm_test_check_bpc_10_value),
+ KUNIT_CASE(drm_test_check_bpc_12_value),
{ }
};
diff --git a/drivers/gpu/drm/tests/drm_connector_test.c b/drivers/gpu/drm/tests/drm_connector_test.c
index 96b19a5954b4..fef7d53d34d4 100644
--- a/drivers/gpu/drm/tests/drm_connector_test.c
+++ b/drivers/gpu/drm/tests/drm_connector_test.c
@@ -208,6 +208,139 @@ static void drm_test_connector_hdmi_init_null_ddc(struct kunit *test)
KUNIT_EXPECT_EQ(test, ret, 0);
}
+/*
+ * Test that the registration of a connector with an invalid maximum bpc
+ * count fails.
+ */
+static void drm_test_connector_hdmi_init_bpc_invalid(struct kunit *test)
+{
+ struct drm_connector_init_priv *priv = test->priv;
+ int ret;
+
+ ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector,
+ &dummy_funcs,
+ DRM_MODE_CONNECTOR_HDMIA,
+ &priv->ddc,
+ 9);
+ KUNIT_EXPECT_LT(test, ret, 0);
+}
+
+/*
+ * Test that the registration of a connector with a null maximum bpc
+ * count fails.
+ */
+static void drm_test_connector_hdmi_init_bpc_null(struct kunit *test)
+{
+ struct drm_connector_init_priv *priv = test->priv;
+ int ret;
+
+ ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector,
+ &dummy_funcs,
+ DRM_MODE_CONNECTOR_HDMIA,
+ &priv->ddc,
+ 0);
+ KUNIT_EXPECT_LT(test, ret, 0);
+}
+
+/*
+ * Test that the registration of a connector with a maximum bpc count of
+ * 8 succeeds, registers the max bpc property, but doesn't register the
+ * HDR output metadata one.
+ */
+static void drm_test_connector_hdmi_init_bpc_8(struct kunit *test)
+{
+ struct drm_connector_init_priv *priv = test->priv;
+ struct drm_connector *connector = &priv->connector;
+ struct drm_property *prop;
+ uint64_t val;
+ int ret;
+
+ ret = drmm_connector_hdmi_init(&priv->drm, connector,
+ &dummy_funcs,
+ DRM_MODE_CONNECTOR_HDMIA,
+ &priv->ddc,
+ 8);
+ KUNIT_EXPECT_EQ(test, ret, 0);
+
+ prop = connector->max_bpc_property;
+ KUNIT_ASSERT_NOT_NULL(test, prop);
+ KUNIT_EXPECT_NOT_NULL(test, drm_mode_obj_find_prop_id(&connector->base, prop->base.id));
+
+ ret = drm_object_property_get_value(&connector->base, prop, &val);
+ KUNIT_EXPECT_EQ(test, ret, 0);
+ KUNIT_EXPECT_EQ(test, val, 8);
+
+ prop = priv->drm.mode_config.hdr_output_metadata_property;
+ KUNIT_ASSERT_NOT_NULL(test, prop);
+ KUNIT_EXPECT_NULL(test, drm_mode_obj_find_prop_id(&connector->base, prop->base.id));
+}
+
+/*
+ * Test that the registration of a connector with a maximum bpc count of
+ * 10 succeeds and registers the max bpc and HDR output metadata
+ * properties.
+ */
+static void drm_test_connector_hdmi_init_bpc_10(struct kunit *test)
+{
+ struct drm_connector_init_priv *priv = test->priv;
+ struct drm_connector *connector = &priv->connector;
+ struct drm_property *prop;
+ uint64_t val;
+ int ret;
+
+ ret = drmm_connector_hdmi_init(&priv->drm, connector,
+ &dummy_funcs,
+ DRM_MODE_CONNECTOR_HDMIA,
+ &priv->ddc,
+ 10);
+ KUNIT_EXPECT_EQ(test, ret, 0);
+
+ prop = connector->max_bpc_property;
+ KUNIT_ASSERT_NOT_NULL(test, prop);
+ KUNIT_EXPECT_NOT_NULL(test, drm_mode_obj_find_prop_id(&connector->base, prop->base.id));
+
+ ret = drm_object_property_get_value(&connector->base, prop, &val);
+ KUNIT_EXPECT_EQ(test, ret, 0);
+ KUNIT_EXPECT_EQ(test, val, 10);
+
+ prop = priv->drm.mode_config.hdr_output_metadata_property;
+ KUNIT_ASSERT_NOT_NULL(test, prop);
+ KUNIT_EXPECT_NOT_NULL(test, drm_mode_obj_find_prop_id(&connector->base, prop->base.id));
+}
+
+/*
+ * Test that the registration of a connector with a maximum bpc count of
+ * 12 succeeds and registers the max bpc and HDR output metadata
+ * properties.
+ */
+static void drm_test_connector_hdmi_init_bpc_12(struct kunit *test)
+{
+ struct drm_connector_init_priv *priv = test->priv;
+ struct drm_connector *connector = &priv->connector;
+ struct drm_property *prop;
+ uint64_t val;
+ int ret;
+
+ ret = drmm_connector_hdmi_init(&priv->drm, connector,
+ &dummy_funcs,
+ DRM_MODE_CONNECTOR_HDMIA,
+ &priv->ddc,
+ 12);
+ KUNIT_EXPECT_EQ(test, ret, 0);
+
+ prop = connector->max_bpc_property;
+ KUNIT_ASSERT_NOT_NULL(test, prop);
+ KUNIT_EXPECT_NOT_NULL(test, drm_mode_obj_find_prop_id(&connector->base, prop->base.id));
+
+ ret = drm_object_property_get_value(&connector->base, prop, &val);
+ KUNIT_EXPECT_EQ(test, ret, 0);
+ KUNIT_EXPECT_EQ(test, val, 12);
+
+ prop = priv->drm.mode_config.hdr_output_metadata_property;
+ KUNIT_ASSERT_NOT_NULL(test, prop);
+ KUNIT_EXPECT_NOT_NULL(test, drm_mode_obj_find_prop_id(&connector->base, prop->base.id));
+}
+
/*
* Test that the registration of an HDMI connector with an HDMI
* connector type succeeds.
@@ -286,6 +419,11 @@ KUNIT_ARRAY_PARAM(drm_connector_hdmi_init_type_invalid,
static struct kunit_case drmm_connector_hdmi_init_tests[] = {
KUNIT_CASE(drm_test_connector_hdmi_init_valid),
+ KUNIT_CASE(drm_test_connector_hdmi_init_bpc_8),
+ KUNIT_CASE(drm_test_connector_hdmi_init_bpc_10),
+ KUNIT_CASE(drm_test_connector_hdmi_init_bpc_12),
+ KUNIT_CASE(drm_test_connector_hdmi_init_bpc_invalid),
+ KUNIT_CASE(drm_test_connector_hdmi_init_bpc_null),
KUNIT_CASE(drm_test_connector_hdmi_init_null_ddc),
KUNIT_CASE_PARAM(drm_test_connector_hdmi_init_type_valid,
drm_connector_hdmi_init_type_valid_gen_params),
--
2.43.0
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