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5926116644
1. move startup_stack attr from soc_memory_type_desc_t to soc_memory_region_t and remove unused aliased_iram field 2. all of the last level of RAM is retention dma accessible on esp32c3 3. remove esp32c2 and later chips retention dma accessible memory caps 4. allow allocate memory from RTC_RAM with MALLOC_CAP_EXEC cap
81 lines
3.5 KiB
C
81 lines
3.5 KiB
C
/*
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* SPDX-FileCopyrightText: 2020-2023 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef BOOTLOADER_BUILD
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#include <stdint.h>
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#include <stdlib.h>
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#include "esp_attr.h"
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#include "sdkconfig.h"
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#include "soc/soc.h"
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#include "soc/soc_memory_layout.h"
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#include "esp_heap_caps.h"
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/**
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* @brief Memory type descriptors. These describe the capabilities of a type of memory in the SoC.
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* Each type of memory map consists of one or more regions in the address space.
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* Each type contains an array of prioritized capabilities.
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* Types with later entries are only taken if earlier ones can't fulfill the memory request.
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*
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* - For a normal malloc (MALLOC_CAP_DEFAULT), give away the DRAM-only memory first, then pass off any dual-use IRAM regions, finally eat into the application memory.
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* - For a malloc where 32-bit-aligned-only access is okay, first allocate IRAM, then DRAM, finally application IRAM.
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* - Application mallocs (PIDx) will allocate IRAM first, if possible, then DRAM.
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* - Most other malloc caps only fit in one region anyway.
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*
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*/
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/* Index of memory in `soc_memory_types[]` */
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enum {
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SOC_MEMORY_TYPE_RAM = 0,
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SOC_MEMORY_TYPE_NUM,
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};
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const soc_memory_type_desc_t soc_memory_types[SOC_MEMORY_TYPE_NUM] = {
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// Type 0: DRAM which has an alias on the I-port
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[SOC_MEMORY_TYPE_RAM] = { "RAM", { MALLOC_CAP_DEFAULT | MALLOC_CAP_DMA | MALLOC_CAP_8BIT | MALLOC_CAP_INTERNAL | MALLOC_CAP_32BIT | MALLOC_CAP_EXEC, 0, 0 }},
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};
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const size_t soc_memory_type_count = sizeof(soc_memory_types) / sizeof(soc_memory_type_desc_t);
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/**
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* @brief Region descriptors. These describe all regions of memory available, and map them to a type in the above type.
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*
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* @note Because of requirements in the coalescing code which merges adjacent regions,
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* this list should always be sorted from low to high by start address.
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*
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*/
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/**
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* Register the shared buffer area of the last memory block into the heap during heap initialization
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*/
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#define APP_USABLE_DRAM_END (SOC_ROM_STACK_START - SOC_ROM_STACK_SIZE)
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const soc_memory_region_t soc_memory_regions[] = {
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{ 0x3FCA0000, 0x10000, SOC_MEMORY_TYPE_RAM, 0x40380000, false}, //D/IRAM level1
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{ 0x3FCB0000, 0x10000, SOC_MEMORY_TYPE_RAM, 0x40390000, false}, //D/IRAM level2
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{ 0x3FCC0000, (APP_USABLE_DRAM_END-0x3FCC0000), SOC_MEMORY_TYPE_RAM, 0x403A0000, false}, //D/IRAM level3
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{ APP_USABLE_DRAM_END, (SOC_DIRAM_DRAM_HIGH-APP_USABLE_DRAM_END), SOC_MEMORY_TYPE_RAM, MAP_DRAM_TO_IRAM(APP_USABLE_DRAM_END), true} //D/IRAM level3 (ROM reserved area)
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};
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const size_t soc_memory_region_count = sizeof(soc_memory_regions) / sizeof(soc_memory_region_t);
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extern int _data_start, _heap_start, _iram_start, _iram_end;
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/**
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* Reserved memory regions.
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* These are removed from the soc_memory_regions array when heaps are created.
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*
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*/
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// Static data region. DRAM used by data+bss and possibly rodata
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SOC_RESERVE_MEMORY_REGION((intptr_t)&_data_start, (intptr_t)&_heap_start, dram_data);
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// Target has a big D/IRAM region, the part used by code is reserved
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// The address of the D/I bus are in the same order, directly shift IRAM address to get reserved DRAM address
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#define I_D_OFFSET (SOC_DIRAM_IRAM_LOW - SOC_DIRAM_DRAM_LOW)
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SOC_RESERVE_MEMORY_REGION((intptr_t)&_iram_start - I_D_OFFSET, (intptr_t)&_iram_end - I_D_OFFSET, iram_code);
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#endif // BOOTLOADER_BUILD
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