tests: benchmarks: multicore: idle_flpr: Update the test

Recently, there were improvements in the idle_ppr test.
Apply similar changes to the idle_flpr test.

Since, FLPR doesn't support GPIO, skip code that indicates
cpu activity.

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

Author: nordic-segl

tests/benchmarks/multicore/idle_flpr/prj.conf

@@ -4,5 +4,3 @@ CONFIG_NCS_BOOT_BANNER=n
 CONFIG_LOG=y
 CONFIG_ASSERT=y
 CONFIG_GPIO=y
-
-CONFIG_NRF_REGTOOL_VERBOSITY=1

tests/benchmarks/multicore/idle_flpr/remote/CMakeLists.txt

@@ -9,9 +9,9 @@ cmake_minimum_required(VERSION 3.20.0)
 find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
 project(remote)
 
-target_sources(app PRIVATE src/main.c)
+target_sources(app PRIVATE ../src/main.c)
 
-if(DEFINED CONFIG_SOC_NRF54H20_CPUFLPR)
-	message(STATUS "Power Mode handler for RISC V is included.")
-	target_sources(app PRIVATE ../../common/power_off.c)
+if(CONFIG_SOC_NRF54H20_CPUFLPR)
+  message(STATUS "Power Mode handler for RISC V is included.")
+  target_sources(app PRIVATE ../../common/power_off.c)
 endif()

tests/benchmarks/multicore/idle_flpr/remote/boards/nrf54h20dk_nrf54h20_cpurad.overlay

@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) 2025 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+ */
+
+/ {
+	aliases {
+		led0 = &led1;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		led1: led_1 {
+			gpios = < &gpio9 0x1 0x0 >;
+			label = "Green LED 1";
+		};
+	};
+};
+
+&gpio9 {
+	status = "okay";
+};
+
+&gpiote130 {
+	status = "okay";
+	owned-channels = <1>;
+};

tests/benchmarks/multicore/idle_flpr/remote/prj.conf

@@ -7,5 +7,4 @@ CONFIG_NCS_BOOT_BANNER=n
 CONFIG_PRINTK=n
 
 CONFIG_ASSERT=y
-
-CONFIG_NRF_REGTOOL_VERBOSITY=1
+CONFIG_GPIO=y

tests/benchmarks/multicore/idle_flpr/remote/prj_s2ram.conf

@@ -1,3 +1,5 @@
+CONFIG_LOG=n
+
 CONFIG_PM=y
 CONFIG_POWEROFF=y
 
@@ -11,3 +13,4 @@ CONFIG_BOOT_BANNER=n
 CONFIG_NCS_BOOT_BANNER=n
 
 CONFIG_ASSERT=y
+CONFIG_GPIO=y

tests/benchmarks/multicore/idle_flpr/remote/src/main.c

@@ -4,12 +4,16 @@
  * SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
  */
 #include <zephyr/kernel.h>
-#include <zephyr/drivers/gpio.h>
 
 #include <zephyr/logging/log.h>
 LOG_MODULE_REGISTER(idle_flpr, LOG_LEVEL_INF);
 
+#if !defined(CONFIG_SOC_NRF54H20_CPUFLPR)
+/* Unable to use GPIO Zephyr driver on FLPR core due to lack of GPIOTE interrupt. */
+#include <zephyr/drivers/gpio.h>
+
 static const struct gpio_dt_spec led = GPIO_DT_SPEC_GET(DT_ALIAS(led0), gpios);
+#endif
 
 /* Variables used to make CPU active for ~1 second */
 static struct k_timer my_timer;
@@ -23,11 +27,13 @@ void my_timer_handler(struct k_timer *dummy)
 int main(void)
 {
 	int counter = 0;
-	int ret;
 
 	LOG_INF("Multicore idle_flpr test on %s", CONFIG_BOARD_TARGET);
 	LOG_INF("Main sleeps for %d ms", CONFIG_TEST_SLEEP_DURATION_MS);
 
+#if !defined(CONFIG_SOC_NRF54H20_CPUFLPR)
+	int ret;
+
 	ret = gpio_is_ready_dt(&led);
 	if (!ret) {
 		LOG_ERR("LED is not ready");
@@ -39,38 +45,46 @@ int main(void)
 		LOG_ERR("Unable to configure GPIO as output");
 	}
 	__ASSERT(ret == 0, "Unable to configure GPIO as output\n");
+#endif
 
 	k_timer_init(&my_timer, my_timer_handler, NULL);
 
 	/* Run test forever */
 	while (1) {
 		timer_expired = false;
 
+#if !defined(CONFIG_SOC_NRF54H20_CPUFLPR)
+		/* Turn ON LED */
+		ret = gpio_pin_set_dt(&led, 1);
+#endif
+
 		/* start a one-shot timer that expires after 1 second */
 		k_timer_start(&my_timer, K_MSEC(1000), K_NO_WAIT);
 
-		/* Turn ON LED */
-		ret = gpio_pin_set_dt(&led, 1);
+#if !defined(CONFIG_SOC_NRF54H20_CPUFLPR)
 		if (ret < 0) {
 			LOG_ERR("Unable to turn on LED");
 		}
 		__ASSERT(ret == 0, "Unable to turn on LED\n");
+#endif
 
 		/* Keep CPU active for ~ 1 second */
 		while (!timer_expired) {
 			k_busy_wait(10000);
 			k_yield();
 		}
 
+		LOG_INF("Run %d", counter);
+		counter++;
+
+#if !defined(CONFIG_SOC_NRF54H20_CPUFLPR)
 		/* Turn OFF LED */
 		ret = gpio_pin_set_dt(&led, 0);
 		if (ret < 0) {
 			LOG_ERR("Unable to turn off LED");
 		}
 		__ASSERT(ret == 0, "Unable to turn off LED\n");
-
-		LOG_INF("Run %d", counter);
-		counter++;
+#endif
 
 		/* Sleep / enter low power state */
 		k_msleep(CONFIG_TEST_SLEEP_DURATION_MS);

tests/benchmarks/multicore/idle_flpr/src/main.c

@@ -7,7 +7,7 @@
 # Add remote project
 ExternalZephyrProject_Add(
   APPLICATION remote_rad
-  SOURCE_DIR ${SYSBUILD_NRF_MODULE_DIR}/tests/benchmarks/power_consumption/common/remote_sleep_forever
+  SOURCE_DIR ${APP_DIR}/remote
   BOARD ${SB_CONFIG_BOARD}/${SB_CONFIG_SOC}/cpurad
   BOARD_REVISION ${BOARD_REVISION}
 )

tests/benchmarks/multicore/idle_flpr/sysbuild.cmake

@@ -26,10 +26,13 @@ tests:
   benchmarks.multicore.idle_flpr.idle_retained:
     tags: ppk_power_measure
     extra_args:
+      - CONFIG_SOC_NRF54H20_CPURAD_ENABLE=y
       - idle_flpr_CONF_FILE=prj_s2ram.conf
       - remote_flpr_CONF_FILE=prj_s2ram.conf
+      - remote_rad_CONF_FILE=prj_s2ram.conf
       - idle_flpr_CONFIG_TEST_SLEEP_DURATION_MS=500
       - remote_flpr_CONFIG_TEST_SLEEP_DURATION_MS=500
+      - remote_rad_CONFIG_TEST_SLEEP_DURATION_MS=500
       - idle_flpr_EXTRA_DTC_OVERLAY_FILE="${ZEPHYR_NRF_MODULE_DIR}/tests/benchmarks/multicore/common/workaround_idle_retained.overlay"
     harness: pytest
     harness_config:
@@ -40,10 +43,13 @@ tests:
   benchmarks.multicore.idle_flpr.idle:
     tags: ppk_power_measure
     extra_args:
+      - CONFIG_SOC_NRF54H20_CPURAD_ENABLE=y
       - idle_flpr_CONF_FILE=prj_s2ram.conf
       - remote_flpr_CONF_FILE=prj_s2ram.conf
+      - remote_rad_CONF_FILE=prj_s2ram.conf
       - idle_flpr_CONFIG_TEST_SLEEP_DURATION_MS=500
       - remote_flpr_CONFIG_TEST_SLEEP_DURATION_MS=500
+      - remote_rad_CONFIG_TEST_SLEEP_DURATION_MS=500
       - idle_flpr_EXTRA_DTC_OVERLAY_FILE="${ZEPHYR_NRF_MODULE_DIR}/tests/benchmarks/multicore/common/workaround_idle.overlay"
     harness: pytest
     harness_config:
@@ -54,8 +60,10 @@ tests:
   benchmarks.multicore.idle_flpr.s2ram:
     tags: ppk_power_measure
     extra_args:
+      - CONFIG_SOC_NRF54H20_CPURAD_ENABLE=y
       - idle_flpr_CONF_FILE=prj_s2ram.conf
       - remote_flpr_CONF_FILE=prj_s2ram.conf
+      - remote_rad_CONF_FILE=prj_s2ram.conf
     harness: pytest
     harness_config:
       fixture: ppk_power_measure