esp-idf/components/esp32/include/esp_cache_err_int.h

// Copyright 2015-2017 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.


/**
 * @brief initialize cache invalid access interrupt
 *
 * This function enables cache invalid access interrupt source and connects it
 * to interrupt input number ETS_CACHEERR_INUM (see soc/soc.h). It is called
 * from the startup code.
 */
void esp_cache_err_int_init();


/**
 * @brief get the CPU which caused cache invalid access interrupt
 * @return
 *  - PRO_CPU_NUM, if PRO_CPU has caused cache IA interrupt
 *  - APP_CPU_NUM, if APP_CPU has caused cache IA interrupt
 *  - (-1) otherwise
 */
int esp_cache_err_get_cpuid();