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https://github.com/espressif/esp-idf.git
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e21ab0332b
Vanilla FreeRTOS expects applications to use one of the heap implementations provided by FreeRTOS (i.e., heap_x.c), where functions such as pvPortMalloc() and vPortFree() are defined in the heap implementation. However, ESP-IDF already provides its own heap implementation (i.e., esp_heap_caps.h). Thus, the pvPortMallc()/vPortFree() functions were previously overriden by macro to call esp_heap functions directly. This commit refactors the FreeRTOS port's heap as such: - Added a heap_idf.c that implements all of the heap related functions required by FreeRTOS source - All dynamic memory allocated by FreeRTOS is from internal memory. Thus, the FreeRTOS heap is the internal memory subset of the ESP-IDF heap. - Removed some old macros to reduce diff from upstream source code.
128 lines
4.6 KiB
C
128 lines
4.6 KiB
C
/*
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* SPDX-FileCopyrightText: 2020 Amazon.com, Inc. or its affiliates
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*
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* SPDX-License-Identifier: MIT
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*
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* SPDX-FileContributor: 2023 Espressif Systems (Shanghai) CO LTD
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*/
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/*
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* FreeRTOS Kernel V10.4.3
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* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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* the Software, and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* https://www.FreeRTOS.org
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* https://github.com/FreeRTOS
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*
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*/
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#include "sdkconfig.h"
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/* This file implements the heap related functions that are called by FreeRTOS.
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* ESP-IDF provides its own heap containing memory with different capabilities
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* (see esp_heap_caps.h). Thus, this file maps a subset of the ESP-IDF heap to
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* act as the FreeRTOS heap.
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*
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* All dynamic allocation done by FreeRTOS should be placed in internal 8-bit
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* accessible RAM (i.e., using the MALLOC_CAP_INTERNAL|MALLOC_CAP_8BIT flags).
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* This is due to the fact that FreeRTOS objects (e.g., task stacks, TCBs,
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* queues etc) must be accessible even if the cache is disabled. Therefore, the
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* heap that is made available to FreeRTOS for dynamic allocation is a subset of
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* the ESP-IDF heap (where all MALLOC_CAP_INTERNAL|MALLOC_CAP_8BIT memory is
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* made available to FreeRTOS for dynamic allocation).
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*/
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/* Defining MPU_WRAPPERS_INCLUDED_FROM_API_FILE prevents task.h from redefining
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* all the API functions to use the MPU wrappers. That should only be done when
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* task.h is included from an application file. */
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#define MPU_WRAPPERS_INCLUDED_FROM_API_FILE
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#include "FreeRTOS.h"
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#undef MPU_WRAPPERS_INCLUDED_FROM_API_FILE
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#if ( configSUPPORT_DYNAMIC_ALLOCATION == 0 )
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#error This file must not be used if configSUPPORT_DYNAMIC_ALLOCATION is 0
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#endif
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#include "esp_heap_caps.h"
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#if !CONFIG_IDF_TARGET_LINUX
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/* Memory util functions are not implemented in the Linux simulator */
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#include "esp_memory_utils.h"
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#endif /* CONFIG_IDF_TARGET_LINUX */
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#define portFREERTOS_HEAP_CAPS ( MALLOC_CAP_INTERNAL | MALLOC_CAP_8BIT )
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/*-----------------------------------------------------------*/
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void * pvPortMalloc( size_t xWantedSize )
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{
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void * pvReturn = NULL;
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/* All dynamic allocation done by FreeRTOS goes through this function. If
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* users need to allocate FreeRTOS objects into external RAM, they should
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* use the "static" equivalents of FreeRTOS API to create FreeRTOS objects
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* (e.g., queues). */
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pvReturn = heap_caps_malloc( xWantedSize, portFREERTOS_HEAP_CAPS );
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return pvReturn;
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}
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/*-----------------------------------------------------------*/
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void vPortFree( void * pv )
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{
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heap_caps_free( pv );
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}
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/*-----------------------------------------------------------*/
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size_t xPortGetFreeHeapSize( void )
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{
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return heap_caps_get_free_size( portFREERTOS_HEAP_CAPS );
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}
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/*-----------------------------------------------------------*/
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size_t xPortGetMinimumEverFreeHeapSize( void )
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{
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return heap_caps_get_minimum_free_size( portFREERTOS_HEAP_CAPS );
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}
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/*-----------------------------------------------------------*/
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bool xPortCheckValidTCBMem(const void *ptr)
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{
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#if CONFIG_IDF_TARGET_LINUX
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return true;
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#else /* CONFIG_IDF_TARGET_LINUX */
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return esp_ptr_internal(ptr) && esp_ptr_byte_accessible(ptr);
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#endif /* CONFIG_IDF_TARGET_LINUX */
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}
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bool xPortcheckValidStackMem(const void *ptr)
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{
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#if CONFIG_IDF_TARGET_LINUX
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return true;
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#else /* CONFIG_IDF_TARGET_LINUX */
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#ifdef CONFIG_SPIRAM_ALLOW_STACK_EXTERNAL_MEMORY
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return esp_ptr_byte_accessible(ptr);
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#else
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return esp_ptr_internal(ptr) && esp_ptr_byte_accessible(ptr);
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#endif
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#endif /* CONFIG_IDF_TARGET_LINUX */
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}
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