[igt-dev] [PATCH i-g-t v2 1/2] tests/kms_content_protection: Add MST subtests

Karthik B S karthik.b.s at intel.com
Fri Oct 23 10:07:08 UTC 2020


Add subtests to verify content protection simultaneously on
multiple outputs on the same MST topology.

Signed-off-by: Anshuman Gupta <anshuman.gupta at intel.com>
Signed-off-by: Karthik B S <karthik.b.s at intel.com>
---
 tests/kms_content_protection.c | 220 +++++++++++++++++++++++++++++++++
 1 file changed, 220 insertions(+)

diff --git a/tests/kms_content_protection.c b/tests/kms_content_protection.c
index 303ed418..5807f3a3 100644
--- a/tests/kms_content_protection.c
+++ b/tests/kms_content_protection.c
@@ -42,6 +42,12 @@ struct data {
 	struct udev_monitor *uevent_monitor;
 } data;
 
+typedef struct {
+	float red;
+	float green;
+	float blue;
+} color_t;
+
 /* Test flags */
 #define CP_DPMS					(1 << 0)
 #define CP_LIC					(1 << 1)
@@ -457,6 +463,54 @@ static bool sink_hdcp2_capable(igt_output_t *output)
 
 	return strstr(buf, "HDCP2.2");
 }
+color_t red  = { 1.0f, 0.0f, 0.0f };
+color_t green  = { 0.0f, 0.1f, 0.0f };
+
+static void prepare_modeset_on_mst_output(igt_output_t *output, enum pipe pipe)
+{
+	drmModeConnectorPtr c = output->config.connector;
+	igt_display_t *display = &data.display;
+	drmModeModeInfo *mode;
+	igt_plane_t *primary;
+	int i;
+
+	mode = igt_output_get_mode(output);
+
+	/*
+	 * TODO: Add logic to use the highest possible modes on each output.
+	 * Currently using 2k modes by default on all the outputs.
+	 */
+	igt_debug("Before mode override: Output %s Mode hdisplay %d Mode vdisplay %d\n",
+		   output->name, mode->hdisplay, mode->vdisplay);
+
+	if (mode->hdisplay > 1920 && mode->vdisplay > 1080) {
+		for (i = 0; i < c->count_modes; i++) {
+			if (c->modes[i].hdisplay <= 1920 && c->modes[i].vdisplay <= 1080) {
+				mode = &c->modes[i];
+				igt_output_override_mode(output, mode);
+				break;
+			}
+		}
+	}
+
+	igt_debug("After mode overide: Output %s Mode hdisplay %d Mode vdisplay %d\n",
+		   output->name, mode->hdisplay, mode->vdisplay);
+
+	if (pipe % 2) {
+		igt_create_color_fb(display->drm_fd, mode->hdisplay, mode->vdisplay,
+				    DRM_FORMAT_XRGB8888, LOCAL_DRM_FORMAT_MOD_NONE,
+				    red.red, red.blue, red.green, &data.red);
+	} else {
+		igt_create_color_fb(display->drm_fd, mode->hdisplay, mode->vdisplay,
+				    DRM_FORMAT_XRGB8888, LOCAL_DRM_FORMAT_MOD_NONE,
+				    green.red, green.blue, green.green, &data.green);
+	}
+
+	igt_output_set_pipe(output, pipe);
+	primary = igt_output_get_plane_type(output, DRM_PLANE_TYPE_PRIMARY);
+	igt_plane_set_fb(primary, NULL);
+	igt_plane_set_fb(primary, pipe % 2 ? &data.red : &data.green);
+}
 
 static void
 test_content_protection(enum igt_commit_style s, int content_type)
@@ -496,6 +550,149 @@ test_content_protection(enum igt_commit_style s, int content_type)
 	igt_require_f(valid_tests, "No connector found with HDCP capability\n");
 }
 
+static bool is_output_support_cp_capable(igt_output_t *output, int content_type)
+{
+		if (!output->props[IGT_CONNECTOR_CONTENT_PROTECTION])
+			return false;
+
+		if (!output->props[IGT_CONNECTOR_HDCP_CONTENT_TYPE] &&
+		    content_type)
+			return false;
+
+		if (content_type && !sink_hdcp2_capable(output)) {
+			igt_info("\tSkip %s (Sink has no HDCP2.2 support)\n",
+				 output->name);
+			return false;
+		} else if (!sink_hdcp_capable(output)) {
+			igt_info("\tSkip %s (Sink has no HDCP support)\n",
+				 output->name);
+			return false;
+		}
+
+		return true;
+}
+
+static int parse_path_blob(char *blob_data)
+{
+	int connector_id;
+	char *encoder;
+
+	encoder = strtok(blob_data, ":");
+	igt_assert_f(!strcmp(encoder, "mst"), "PATH connector property expected to have 'mst'\n");
+
+	connector_id = atoi(strtok(NULL, "-"));
+
+	return connector_id;
+}
+
+static bool is_dp_mst_output(igt_output_t *output, int i)
+{
+	drmModePropertyBlobPtr path_blob = NULL;
+	uint64_t path_blob_id;
+	drmModeConnector *connector = output->config.connector;
+	struct kmstest_connector_config config;
+	const char *encoder;
+	int connector_id;
+	static int prev_connector_id;
+
+	kmstest_get_connector_config(data.drm_fd, output->config.connector->connector_id, -1, &config);
+	encoder = kmstest_encoder_type_str(config.encoder->encoder_type);
+
+	if (strcmp(encoder, "DP MST"))
+		return false;
+
+	igt_assert(kmstest_get_property(data.drm_fd, connector->connector_id,
+		   DRM_MODE_OBJECT_CONNECTOR, "PATH", NULL,
+		   &path_blob_id, NULL));
+
+	igt_assert(path_blob = drmModeGetPropertyBlob(data.drm_fd, path_blob_id));
+
+	connector_id = parse_path_blob((char *) path_blob->data);
+
+	/* Check if all the MST outputs are in the same topology */
+	if (i == 0) {
+		prev_connector_id = connector_id;
+	} else {
+		if (connector_id != prev_connector_id)
+			return false;
+	}
+
+	drmModeFreePropertyBlob(path_blob);
+
+	return true;
+}
+
+static void
+test_content_protection_mst(int content_type)
+{
+	igt_display_t *display = &data.display;
+	igt_output_t *output;
+	int valid_outputs = 0, ret, count, max_pipe = 0;
+	enum pipe pipe;
+	igt_output_t *mst_output[IGT_MAX_PIPES];
+
+	for_each_connected_output(display, output) {
+		if (!is_dp_mst_output(output, valid_outputs))
+			continue;
+
+		if (!is_output_support_cp_capable(output, content_type))
+			continue;
+
+		mst_output[valid_outputs] = output;
+		valid_outputs++;
+	}
+
+	igt_require_f(valid_outputs > 1, "No DP MST set up with >= 2 outputs found in a single topology\n");
+
+	for_each_pipe(display, pipe)
+		max_pipe++;
+
+	if (valid_outputs > max_pipe)
+		valid_outputs = max_pipe;
+
+	pipe = PIPE_A;
+
+	for (count = 0; count < valid_outputs; count++) {
+		igt_assert_f(igt_pipe_connector_valid(pipe, mst_output[count]), "Output-pipe combination invalid\n");
+
+		prepare_modeset_on_mst_output(mst_output[count], pipe);
+		pipe++;
+	}
+
+	igt_display_commit2(display, COMMIT_ATOMIC);
+
+	for (count = 0; count < valid_outputs; count++) {
+		igt_output_set_prop_value(mst_output[count], IGT_CONNECTOR_CONTENT_PROTECTION, CP_DESIRED);
+
+		if (output->props[IGT_CONNECTOR_HDCP_CONTENT_TYPE])
+			igt_output_set_prop_value(mst_output[count], IGT_CONNECTOR_HDCP_CONTENT_TYPE, content_type);
+	}
+
+	igt_display_commit2(display, COMMIT_ATOMIC);
+
+	for (count = 0; count < valid_outputs; count++) {
+		igt_info("CP Prop check to be ENABLED %s\n", mst_output[count]->name);
+		ret = wait_for_prop_value(mst_output[count], CP_ENABLED, KERNEL_AUTH_TIME_ALLOWED_MSEC);
+		igt_assert_f(ret, "Content Protection not enabled output %s\n", mst_output[count]->name);
+
+		igt_kmsg("HDCP Prop is ENABLED %s\n", mst_output[count]->name);
+
+		if (data.cp_tests & CP_LIC)
+			test_cp_lic(mst_output[count]);
+	}
+
+	for (count = 0; count < valid_outputs; count++) {
+		igt_info("CP Prop check to be ENABLED %s\n", mst_output[count]->name);
+		ret = wait_for_prop_value(mst_output[count], CP_ENABLED, KERNEL_AUTH_TIME_ALLOWED_MSEC);
+		igt_assert_f(ret, "Content Protection not enabled output %s\n", mst_output[count]->name);
+
+		igt_info("CP Prop being UNDESIRED on %s\n", mst_output[count]->name);
+		test_cp_disable(mst_output[count], COMMIT_ATOMIC);
+
+		igt_kmsg("HDCP Prop is UNDESIRED %s\n", mst_output[count]->name);
+	}
+}
+
 static void test_content_protection_cleanup(void)
 {
 	igt_display_t *display = &data.display;
@@ -512,6 +709,7 @@ static void test_content_protection_cleanup(void)
 			continue;
 
 		igt_info("CP Prop being UNDESIRED on %s\n", output->name);
+		igt_kmsg("HDCP Prop being UNDESIRED %s\n", output->name);
 		test_cp_disable(output, COMMIT_ATOMIC);
 	}
 }
@@ -592,6 +790,28 @@ igt_main
 		test_content_protection(COMMIT_ATOMIC, HDCP_CONTENT_TYPE_0);
 	}
 
+	igt_describe("Test Content protection over DP MST");
+	igt_subtest("dp-mst-type-0") {
+		test_content_protection_mst(HDCP_CONTENT_TYPE_0);
+	}
+
+	igt_describe("Test Content protection over DP MST with LIC");
+	igt_subtest("dp-mst-lic-type-0") {
+		data.cp_tests = CP_LIC;
+		test_content_protection_mst(HDCP_CONTENT_TYPE_0);
+	}
+
+	igt_describe("Test Content protection over DP MST");
+	igt_subtest("dp-mst-type-1") {
+		test_content_protection_mst(HDCP_CONTENT_TYPE_1);
+	}
+
+	igt_describe("Test Content protection over DP MST with LIC");
+	igt_subtest("dp-mst-lic-type-1") {
+		data.cp_tests = CP_LIC;
+		test_content_protection_mst(HDCP_CONTENT_TYPE_1);
+	}
+
 	igt_fixture {
 		test_content_protection_cleanup();
 		igt_display_fini(&data.display);
-- 
2.22.0



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