mirror of
https://github.com/espressif/esp-idf.git
synced 2025-11-04 00:51:42 +01:00
129 lines
4.8 KiB
C
129 lines
4.8 KiB
C
/*
|
|
** Two Level Segregated Fit memory allocator, version 3.1.
|
|
** Written by Matthew Conte
|
|
** http://tlsf.baisoku.org
|
|
**
|
|
** Based on the original documentation by Miguel Masmano:
|
|
** http://www.gii.upv.es/tlsf/main/docs
|
|
**
|
|
** This implementation was written to the specification
|
|
** of the document, therefore no GPL restrictions apply.
|
|
**
|
|
** Copyright (c) 2006-2016, Matthew Conte
|
|
** All rights reserved.
|
|
**
|
|
** Redistribution and use in source and binary forms, with or without
|
|
** modification, are permitted provided that the following conditions are met:
|
|
** * Redistributions of source code must retain the above copyright
|
|
** notice, this list of conditions and the following disclaimer.
|
|
** * Redistributions in binary form must reproduce the above copyright
|
|
** notice, this list of conditions and the following disclaimer in the
|
|
** documentation and/or other materials provided with the distribution.
|
|
** * Neither the name of the copyright holder nor the
|
|
** names of its contributors may be used to endorse or promote products
|
|
** derived from this software without specific prior written permission.
|
|
**
|
|
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
|
|
** ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
|
** WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
** DISCLAIMED. IN NO EVENT SHALL MATTHEW CONTE BE LIABLE FOR ANY
|
|
** DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
|
** (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
|
** LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
|
|
** ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
|
** SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#ifdef ESP_PLATFORM
|
|
|
|
#include "soc/soc.h"
|
|
|
|
#if !CONFIG_SPIRAM
|
|
#define TLSF_MAX_POOL_SIZE (SOC_DIRAM_DRAM_HIGH - SOC_DIRAM_DRAM_LOW)
|
|
#else
|
|
#define TLSF_MAX_POOL_SIZE SOC_EXTRAM_DATA_SIZE
|
|
#endif
|
|
|
|
enum tlsf_config
|
|
{
|
|
/* log2 of number of linear subdivisions of block sizes. Larger
|
|
** values require more memory in the control structure. Values of
|
|
** 4 or 5 are typical.
|
|
*/
|
|
SL_INDEX_COUNT_LOG2 = 5,
|
|
|
|
/* All allocation sizes and addresses are aligned to 4 bytes. */
|
|
ALIGN_SIZE_LOG2 = 2,
|
|
ALIGN_SIZE = (1 << ALIGN_SIZE_LOG2),
|
|
|
|
/*
|
|
** We support allocations of sizes up to (1 << FL_INDEX_MAX) bits.
|
|
** However, because we linearly subdivide the second-level lists, and
|
|
** our minimum size granularity is 4 bytes, it doesn't make sense to
|
|
** create first-level lists for sizes smaller than SL_INDEX_COUNT * 4,
|
|
** or (1 << (SL_INDEX_COUNT_LOG2 + 2)) bytes, as there we will be
|
|
** trying to split size ranges into more slots than we have available.
|
|
** Instead, we calculate the minimum threshold size, and place all
|
|
** blocks below that size into the 0th first-level list.
|
|
*/
|
|
|
|
/* Tunning the first level, we can reduce TLSF pool overhead
|
|
* in exchange of manage a pool smaller than 4GB
|
|
*/
|
|
#if (TLSF_MAX_POOL_SIZE <= (256 * 1024))
|
|
FL_INDEX_MAX = 18, //Each pool can have up 256KB
|
|
#elif (TLSF_MAX_POOL_SIZE <= (512 * 1024))
|
|
FL_INDEX_MAX = 19, //Each pool can have up 512KB
|
|
#elif (TLSF_MAX_POOL_SIZE <= (1 * 1024 * 1024))
|
|
FL_INDEX_MAX = 20, //Each pool can have up 1MB
|
|
#elif (TLSF_MAX_POOL_SIZE <= (2 * 1024 * 1024))
|
|
FL_INDEX_MAX = 21, //Each pool can have up 2MB
|
|
#elif (TLSF_MAX_POOL_SIZE <= (4 * 1024 * 1024))
|
|
FL_INDEX_MAX = 22, //Each pool can have up 4MB
|
|
#elif (TLSF_MAX_POOL_SIZE <= (8 * 1024 * 1024))
|
|
FL_INDEX_MAX = 23, //Each pool can have up 8MB
|
|
#elif (TLSF_MAX_POOL_SIZE <= (16 * 1024 * 1024))
|
|
FL_INDEX_MAX = 24, //Each pool can have up 16MB
|
|
#elif (TLSF_MAX_POOL_SIZE <= (32 * 1024 * 1024))
|
|
FL_INDEX_MAX = 25, //Each pool can have up 32MB
|
|
#else
|
|
#error "Higher TLSF pool sizes should be added for this new config"
|
|
#endif
|
|
|
|
SL_INDEX_COUNT = (1 << SL_INDEX_COUNT_LOG2),
|
|
FL_INDEX_SHIFT = (SL_INDEX_COUNT_LOG2 + ALIGN_SIZE_LOG2),
|
|
FL_INDEX_COUNT = (FL_INDEX_MAX - FL_INDEX_SHIFT + 1),
|
|
|
|
SMALL_BLOCK_SIZE = (1 << FL_INDEX_SHIFT),
|
|
};
|
|
#else
|
|
enum tlsf_config
|
|
{
|
|
//Specific configuration for host test.
|
|
|
|
/* log2 of number of linear subdivisions of block sizes. Larger
|
|
** values require more memory in the control structure. Values of
|
|
** 4 or 5 are typical.
|
|
*/
|
|
SL_INDEX_COUNT_LOG2 = 5,
|
|
|
|
/* All allocation sizes and addresses are aligned to 4 bytes. */
|
|
ALIGN_SIZE_LOG2 = 2,
|
|
ALIGN_SIZE = (1 << ALIGN_SIZE_LOG2),
|
|
|
|
/* Tunning the first level, we can reduce TLSF pool overhead
|
|
* in exchange of manage a pool smaller than 4GB
|
|
*/
|
|
FL_INDEX_MAX = 30,
|
|
|
|
SL_INDEX_COUNT = (1 << SL_INDEX_COUNT_LOG2),
|
|
FL_INDEX_SHIFT = (SL_INDEX_COUNT_LOG2 + ALIGN_SIZE_LOG2),
|
|
FL_INDEX_COUNT = (FL_INDEX_MAX - FL_INDEX_SHIFT + 1),
|
|
|
|
SMALL_BLOCK_SIZE = (1 << FL_INDEX_SHIFT),
|
|
};
|
|
#endif
|