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tests: benchmarks: Add GRTC idle test
Assess GRTC timer count value after exiting s2ram. Signed-off-by: Bartosz Miller <[email protected]>
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‎tests/benchmarks/multicore/idle_grtc/CMakeLists.txt‎

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#
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# Copyright (c) 2025 Nordic Semiconductor ASA
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#
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# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
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#
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cmake_minimum_required(VERSION 3.20.0)
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find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
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if(NOT SYSBUILD)
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message(FATAL_ERROR
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" This is a multi-image application that should be built using sysbuild.\n"
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" Add --sysbuild argument to west build command to prepare all the images.")
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endif()
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project(idle_grtc)
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if((DEFINED CONFIG_SOC_NRF54H20_CPUPPR) OR (DEFINED CONFIG_SOC_NRF54H20_ENGB_CPUPPR))
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message(STATUS "Power Mode handler for RISC V is included.")
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target_sources(app PRIVATE ${ZEPHYR_NRF_MODULE_DIR}/tests/benchmarks/multicore/common/power_off.c)
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endif()
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target_sources(app PRIVATE src/main.c)

‎tests/benchmarks/multicore/idle_grtc/Kconfig‎

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#
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# Copyright (c) 2025 Nordic Semiconductor ASA
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#
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# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
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#
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config APP_PROVIDE_PM_HOOKS
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bool "Application provides PM hooks"
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default y
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select HAS_PM
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select HAS_POWEROFF
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source "Kconfig.zephyr"

‎tests/benchmarks/multicore/idle_grtc/boards/nrf54h20dk_nrf54h20_cpuapp.overlay‎

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/*
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* Copyright (c) 2025 Nordic Semiconductor ASA
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*
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* SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
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*/
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/ {
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aliases {
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/delete-property/ led1;
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};
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};
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/delete-node/ &led1;

‎tests/benchmarks/multicore/idle_grtc/boards/nrf54h20dk_nrf54h20_cpuppr.overlay‎

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/*
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* Copyright (c) 2025 Nordic Semiconductor ASA
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*
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* SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
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*/
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/ {
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cpus {
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power-states {
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wait: wait {
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compatible = "zephyr,power-state";
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power-state-name = "standby";
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substate-id = <0>;
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min-residency-us = <20000>;
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};
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hibernate: hibernate {
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compatible = "zephyr,power-state";
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power-state-name = "suspend-to-ram";
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substate-id = <0>;
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min-residency-us = <400000>;
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};
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};
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};
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};
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&cpu {
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cpu-power-states = <&wait &hibernate>;
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};
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&grtc {
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owned-channels = <5 6>;
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};

‎tests/benchmarks/multicore/idle_grtc/prj.conf‎

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CONFIG_PM=y
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CONFIG_PM_DEVICE=y
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CONFIG_PM_DEVICE_RUNTIME=y
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CONFIG_POWEROFF=y
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CONFIG_GPIO=y
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CONFIG_ASSERT=y
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CONFIG_LOG=n
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CONFIG_CONSOLE=n
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CONFIG_UART_CONSOLE=n
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CONFIG_SERIAL=n

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

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/*
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* Copyright (c) 2025 Nordic Semiconductor ASA
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*
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* SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
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*/
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#include <zephyr/kernel.h>
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#include <zephyr/drivers/gpio.h>
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#include <zephyr/pm/device.h>
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#include <zephyr/pm/device_runtime.h>
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#include <zephyr/drivers/timer/nrf_grtc_timer.h>
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#include <hal/nrf_grtc.h>
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#define TIMER_COUNT_TIME_MS 995
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#define SLEEP_TIME_MS 1500
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/*
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* The timer value readout is not time synchronised,
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* this tolerance accounts for the readout delay
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*/
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#define READOUT_TIMER_TOLERANCE_IN_TICKS 1500
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#define EXPECTED_READOUT_VALUE \
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(sys_clock_hw_cycles_per_sec() / 1000) * (SLEEP_TIME_MS - TIMER_COUNT_TIME_MS)
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static volatile uint64_t isr_count_value;
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static volatile bool count_isr_triggered;
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static void timer_compare_interrupt_handler(int32_t id, uint64_t expire_time, void *user_data)
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{
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isr_count_value = z_nrf_grtc_timer_read();
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count_isr_triggered = true;
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}
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int main(void)
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{
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int err;
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uint64_t test_ticks = 0;
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uint64_t compare_value = 0;
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uint64_t count_difference = 0;
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char user_data[] = "test_timer_count_in_compare_mode\n";
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int32_t channel = z_nrf_grtc_timer_chan_alloc();
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__ASSERT(channel > 0, "GRTC channel not allocated\n");
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while (1) {
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count_isr_triggered = false;
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test_ticks = z_nrf_grtc_timer_get_ticks(K_MSEC(TIMER_COUNT_TIME_MS));
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err = z_nrf_grtc_timer_set(channel, test_ticks, timer_compare_interrupt_handler,
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(void *)user_data);
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__ASSERT(err == 0, "z_nrf_grtc_timer_set raised an error: %d", err);
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z_nrf_grtc_timer_compare_read(channel, &compare_value);
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__ASSERT(K_TIMEOUT_EQ(K_TICKS(compare_value), K_TICKS(test_ticks)) == true,
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"Compare register set failed");
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__ASSERT(err == 0, "Unexpected error raised when setting timer, err: %d", err);
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/* Got to sleep */
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k_sleep(K_MSEC(SLEEP_TIME_MS));
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/*
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* Read counter value after exiting the sleep
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* and compare it to the value captured in the ISR
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*/
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count_difference = z_nrf_grtc_timer_read() - isr_count_value;
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__ASSERT((EXPECTED_READOUT_VALUE - READOUT_TIMER_TOLERANCE_IN_TICKS <=
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count_difference) &&
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(count_difference <=
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EXPECTED_READOUT_VALUE + READOUT_TIMER_TOLERANCE_IN_TICKS),
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"GRTC timer readout after sleep returned incorrect value. Returned, "
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"expected, abs tolerance (%lld/%d/%d)",
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count_difference, EXPECTED_READOUT_VALUE,
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READOUT_TIMER_TOLERANCE_IN_TICKS);
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}
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z_nrf_grtc_timer_chan_free(channel);
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return 0;
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}

‎tests/benchmarks/multicore/idle_grtc/sysbuild.cmake‎

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#
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# Copyright (c) 2025 Nordic Semiconductor ASA
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#
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# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
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#
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# Add remote project
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ExternalZephyrProject_Add(
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APPLICATION remote
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SOURCE_DIR ${ZEPHYR_NRF_MODULE_DIR}/tests/benchmarks/power_consumption/common/remote_sleep_forever
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BOARD ${SB_CONFIG_BOARD}/${SB_CONFIG_SOC}/cpurad
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BOARD_REVISION ${BOARD_REVISION}
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)

‎tests/benchmarks/multicore/idle_grtc/testcase.yaml‎

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common:
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sysbuild: true
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tests:
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benchmarks.multicore.idle_grtc:
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tags:
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- ci_build
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- ci_tests_benchmarks_multicore
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- timer
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- ppk_power_measure
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platform_allow:
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- nrf54h20dk/nrf54h20/cpuppr
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integration_platforms:
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- nrf54h20dk/nrf54h20/cpuppr
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extra_args:
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- vpr_launcher_EXTRA_CONF_FILE=${ZEPHYR_NRF_MODULE_DIR}/tests/benchmarks/multicore/idle_grtc/vpr_launcher.conf
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- vpr_launcher_EXTRA_DTC_OVERLAY_FILE=${ZEPHYR_NRF_MODULE_DIR}/tests/benchmarks/multicore/idle_grtc/boards/nrf54h20dk_nrf54h20_cpuapp.overlay
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harness: pytest
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harness_config:
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fixture: ppk_power_measure
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pytest_root:
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- "${CUSTOM_ROOT_TEST_DIR}/test_measure_power_consumption.py::test_measure_power_consumption_idle_grtc"

‎tests/benchmarks/multicore/idle_grtc/vpr_launcher.conf‎

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CONFIG_PM=y
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CONFIG_PM_S2RAM=y
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CONFIG_PM_S2RAM_CUSTOM_MARKING=y
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CONFIG_PM_DEVICE=y
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CONFIG_PM_DEVICE_RUNTIME=y
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CONFIG_POWEROFF=y
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CONFIG_LOG=n
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CONFIG_CONSOLE=n
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CONFIG_UART_CONSOLE=n
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CONFIG_SERIAL=n

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