esp-idf/components/freertos/test/performance/test_isr_latency.c
2022-04-21 07:55:34 +00:00

122 lines
3.9 KiB
C

/*
* SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <esp_types.h>
#include <stdio.h>
#include "sdkconfig.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "freertos/semphr.h"
#include "freertos/queue.h"
#include "esp_intr_alloc.h"
#include "unity.h"
#include "test_utils.h"
#if CONFIG_IDF_TARGET_ARCH_XTENSA
#include "xtensa/hal.h"
#include "freertos/xtensa_api.h"
#define TEST_SET_INT_MASK(mask) xt_set_intset(mask)
#define TEST_CLR_INT_MASK(mask) xt_set_intclear(mask)
#elif CONFIG_IDF_TARGET_ARCH_RISCV
#include "riscv/interrupt.h"
#define TEST_SET_INT_MASK(mask) esprv_intc_int_enable(mask)
#define TEST_CLR_INT_MASK(mask) esprv_intc_int_disable(mask)
#endif
#ifndef __riscv // TODO: IDF-4416
#define SW_ISR_LEVEL_1 7
static SemaphoreHandle_t sync;
static SemaphoreHandle_t end_sema;
static uint32_t cycle_before_trigger;
static uint32_t cycle_before_exit;
static uint32_t delta_enter_cycles = 0;
static uint32_t delta_exit_cycles = 0;
static void software_isr_using_parameter_vportyield(void *arg) {
(void)arg;
BaseType_t yield;
delta_enter_cycles += portGET_RUN_TIME_COUNTER_VALUE() - cycle_before_trigger;
TEST_CLR_INT_MASK(1 << SW_ISR_LEVEL_1);
xSemaphoreGiveFromISR(sync, &yield);
portYIELD_FROM_ISR(yield);
cycle_before_exit = portGET_RUN_TIME_COUNTER_VALUE();
}
static void software_isr_using_no_argument_vportyield(void *arg) {
(void)arg;
BaseType_t yield;
delta_enter_cycles += portGET_RUN_TIME_COUNTER_VALUE() - cycle_before_trigger;
TEST_CLR_INT_MASK(1 << SW_ISR_LEVEL_1);
xSemaphoreGiveFromISR(sync, &yield);
if(yield) {
portYIELD_FROM_ISR();
}
cycle_before_exit = portGET_RUN_TIME_COUNTER_VALUE();
}
static void test_task(void *arg) {
(void) arg;
for(int i = 0;i < 10000; i++) {
cycle_before_trigger = portGET_RUN_TIME_COUNTER_VALUE();
TEST_SET_INT_MASK(1 << SW_ISR_LEVEL_1);
xSemaphoreTake(sync, portMAX_DELAY);
delta_exit_cycles += portGET_RUN_TIME_COUNTER_VALUE() - cycle_before_exit;
}
delta_enter_cycles /= 10000;
delta_exit_cycles /= 10000;
xSemaphoreGive(end_sema);
vTaskDelete(NULL);
}
TEST_CASE("isr latency test vport-yield-from-isr with no parameter", "[freertos] [ignore]")
{
intr_handle_t handle;
esp_err_t err = esp_intr_alloc(ETS_INTERNAL_SW0_INTR_SOURCE, ESP_INTR_FLAG_LEVEL1, &software_isr_using_no_argument_vportyield, NULL, &handle);
TEST_ASSERT_EQUAL_HEX32(ESP_OK, err);
sync = xSemaphoreCreateBinary();
TEST_ASSERT(sync != NULL);
end_sema = xSemaphoreCreateBinary();
TEST_ASSERT(end_sema != NULL);
xTaskCreatePinnedToCore(test_task, "tst" , 4096, NULL, configMAX_PRIORITIES - 1, NULL, 0);
vTaskDelay(100);
BaseType_t result = xSemaphoreTake(end_sema, portMAX_DELAY);
TEST_ASSERT_EQUAL_HEX32(pdTRUE, result);
TEST_PERFORMANCE_LESS_THAN(ISR_ENTER_CYCLES, "%d cycles" ,delta_enter_cycles);
TEST_PERFORMANCE_LESS_THAN(ISR_EXIT_CYCLES, "%d cycles" ,delta_exit_cycles);
esp_intr_free(handle);
}
TEST_CASE("isr latency test vport-yield-from-isr with parameter", "[freertos][ignore]")
{
intr_handle_t handle;
esp_err_t err = esp_intr_alloc(ETS_INTERNAL_SW0_INTR_SOURCE, ESP_INTR_FLAG_LEVEL1, &software_isr_using_parameter_vportyield, NULL, &handle);
TEST_ASSERT_EQUAL_HEX32(ESP_OK, err);
sync = xSemaphoreCreateBinary();
TEST_ASSERT(sync != NULL);
end_sema = xSemaphoreCreateBinary();
TEST_ASSERT(end_sema != NULL);
xTaskCreatePinnedToCore(test_task, "tst" , 4096, NULL, configMAX_PRIORITIES - 1, NULL, 0);
BaseType_t result = xSemaphoreTake(end_sema, portMAX_DELAY);
TEST_ASSERT_EQUAL_HEX32(pdTRUE, result);
TEST_PERFORMANCE_LESS_THAN(ISR_ENTER_CYCLES, "%d cycles" ,delta_enter_cycles);
TEST_PERFORMANCE_LESS_THAN(ISR_EXIT_CYCLES, "%d cycles" ,delta_exit_cycles);
esp_intr_free(handle);
}
#endif // __riscv