tests: boards: nrf: coresight_stm: Add performance test for STM

Extend STM testing with verification whether STM benchmark
results are below predefined thresholds.
Set thresholds arbitrarily.

Add tests that allow code coverage calculation.

Signed-off-by: Sebastian Głąb <[email protected]>

Author: nordic-segl

samples/boards/nordic/coresight_stm/src/main.c

@@ -103,5 +103,7 @@ int main(void)
 	timing_report(t_tpd, rpt_tp, "tracepoint_d32");
 #endif
 
+	/* Needed in coverage run to separate STM logs from printk() */
+	k_msleep(400);
 	return 0;
 }

tests/boards/nrf/coresight_stm/CMakeLists.txt

@@ -0,0 +1,17 @@
+#
+# Copyright (c) 2024 Nordic Semiconductor ASA
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+cmake_minimum_required(VERSION 3.20.0)
+
+find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
+
+if(NOT (CONFIG_BOARD_NRF54H20DK_NRF54H20_CPUAPP))
+  message(FATAL_ERROR "${BOARD}${BOARD_QUALIFIERS} is not supported for this sample")
+endif()
+
+project(nrf_coresight_stm)
+
+target_sources(app PRIVATE $ENV{ZEPHYR_BASE}/samples/boards/nordic/coresight_stm/src/main.c)

tests/boards/nrf/coresight_stm/Kconfig.sysbuild

@@ -0,0 +1,11 @@
+# Copyright 2024 Nordic Semiconductor ASA
+#
+# SPDX-License-Identifier: Apache-2.0
+
+source "share/sysbuild/Kconfig"
+
+config APP_CPUPPR_RUN
+	bool "Use PPR"
+
+config APP_CPUFLPR_RUN
+	bool "Use FLPR"

tests/boards/nrf/coresight_stm/boards/nrf54h20dk_nrf54h20_cpuapp.overlay

@@ -0,0 +1,16 @@
+/*
+ * Copyright (c) 2024 Nordic Semiconductor
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+&cpuppr_vpr {
+	status = "okay";
+};
+
+&cpuppr_ram3x_region {
+	status = "okay";
+};
+
+&cpuflpr_vpr {
+	status = "okay";
+};

tests/boards/nrf/coresight_stm/prj.conf

@@ -0,0 +1 @@
+CONFIG_LOG=y