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https://github.com/espressif/esp-idf.git
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89 lines
3.4 KiB
C
89 lines
3.4 KiB
C
// Copyright 2018-2019 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include <stdlib.h>
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#include "xtensa_perfmon_apis.h"
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#include "xtensa_perfmon_masks.h"
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static const char *TAG = "perfmon";
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esp_err_t xtensa_perfmon_exec(const xtensa_perfmon_config_t *config)
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{
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esp_err_t result = ESP_OK;
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if (config->call_function == NULL) {
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ESP_LOGE(TAG, "Parameter call_function must be defined.");
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return ESP_ERR_INVALID_ARG;
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}
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if (config->callback == NULL) {
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ESP_LOGE(TAG, "Parameter callback must be defined.");
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return ESP_ERR_INVALID_ARG;
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}
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for (size_t n = 0; n < config->counters_size; n++) {
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uint32_t call_min = UINT32_MAX;
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uint32_t call_max = 0;
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float result_value = 0;
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for (size_t i = 0; i < config->repeat_count; i++) {
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// Set up cycle counter
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xtensa_perfmon_stop();
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int kernelcnt = 0;
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// if tracelevel used, then kernelcnt will be enabled
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if (config->tracelevel >=0) kernelcnt = 1;
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xtensa_perfmon_init(0, 0, 0xffff, kernelcnt, config->tracelevel);
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xtensa_perfmon_init(1, config->select_mask[n * 2 + 0], config->select_mask[n * 2 + 1], kernelcnt, config->tracelevel);
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xtensa_perfmon_start();
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config->call_function(config->call_params);
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xtensa_perfmon_stop();
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uint32_t p0 = xtensa_perfmon_value(0);
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uint32_t p1 = xtensa_perfmon_value(1);
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result_value += (float)p1 / config->repeat_count;
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if (p0 < call_min) {
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call_min = p0;
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}
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if (p0 > call_max) {
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call_max = p0;
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}
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ESP_LOGV(TAG, "p0 = %i, p1 = %i", p0, p1);
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}
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uint32_t call_diff = (call_max - call_min);
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if (call_diff > call_max * config->max_deviation) {
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return ESP_FAIL;
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} else {
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config->callback(config->callback_params, config->select_mask[n * 2 + 0], config->select_mask[n * 2 + 1], (uint32_t)result_value);
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}
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}
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return result;
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}
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void xtensa_perfmon_view_cb(void *params, uint32_t select, uint32_t mask, uint32_t value)
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{
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FILE *handle;
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if (params != NULL) {
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handle = (FILE *)params;
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} else {
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handle = stdout;
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}
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for (int i = 0 ; xtensa_perfmon_select_table[i].select != -1; i++) {
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if (xtensa_perfmon_select_table[i].select == select) {
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fprintf(handle, "Value = %9i, select = %2i, mask = %04x. %s.\n", value, select, mask, xtensa_perfmon_select_table[i].description);
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}
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}
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for (int i = 0 ; xtensa_perfmon_masks_table[i].select != -1; i++) {
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if ((xtensa_perfmon_masks_table[i].select == select) && (xtensa_perfmon_masks_table[i].mask & mask)) {
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fprintf(handle, " %s\n", xtensa_perfmon_masks_table[i].description);
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}
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}
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}
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