/* * SPDX-FileCopyrightText: 2019-2023 Espressif Systems (Shanghai) CO LTD * * SPDX-License-Identifier: Apache-2.0 */ #include #include #include "sdkconfig.h" #include "esp_attr.h" #include "soc/soc.h" #include "soc/dport_reg.h" #include "soc/tracemem_config.h" #include "heap_memory_layout.h" #include "esp_heap_caps.h" /** * @brief Memory type descriptors. These describe the capabilities of a type of memory in the SoC. * Each type of memory map consists of one or more regions in the address space. * Each type contains an array of prioritized capabilities. * Types with later entries are only taken if earlier ones can't fulfill the memory request. * * - 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. * - For a malloc where 32-bit-aligned-only access is okay, first allocate IRAM, then DRAM, finally application IRAM. * - Application mallocs (PIDx) will allocate IRAM first, if possible, then DRAM. * - Most other malloc caps only fit in one region anyway. * */ /* Index of memory in `soc_memory_types[]` */ enum { SOC_MEMORY_TYPE_DIRAM = 0, SOC_MEMORY_TYPE_DRAM = 1, SOC_MEMORY_TYPE_IRAM = 2, SOC_MEMORY_TYPE_SPIRAM = 3, SOC_MEMORY_TYPE_RTCRAM = 4, SOC_MEMORY_TYPE_NUM, }; /* COMMON_CAPS is the set of attributes common to all types of memory (except I/D cache data memory) on this chip */ #define ESP32S3_MEM_COMMON_CAPS (MALLOC_CAP_DEFAULT | MALLOC_CAP_32BIT | MALLOC_CAP_8BIT) #ifdef CONFIG_ESP_SYSTEM_MEMPROT_FEATURE #define MALLOC_DIRAM_BASE_CAPS ESP32S3_MEM_COMMON_CAPS | MALLOC_CAP_INTERNAL | MALLOC_CAP_DMA | MALLOC_CAP_RETENTION #define MALLOC_RTCRAM_BASE_CAPS ESP32S3_MEM_COMMON_CAPS | MALLOC_CAP_INTERNAL #else #define MALLOC_DIRAM_BASE_CAPS ESP32S3_MEM_COMMON_CAPS | MALLOC_CAP_INTERNAL | MALLOC_CAP_DMA | MALLOC_CAP_RETENTION | MALLOC_CAP_EXEC #define MALLOC_RTCRAM_BASE_CAPS ESP32S3_MEM_COMMON_CAPS | MALLOC_CAP_INTERNAL | MALLOC_CAP_EXEC #endif /** * Defined the attributes and allocation priority of each memory on the chip, * The heap allocator will traverse all types of memory types in column High Priority Matching and match the specified caps at first, * if no memory caps matched or the allocation is failed, it will go to columns Medium Priorty Matching and Low Priority Matching * in turn to continue matching. */ const soc_memory_type_desc_t soc_memory_types[SOC_MEMORY_TYPE_NUM] = { /* Mem Type Name | High Priority Matching | Medium Priorty Matching | Low Priority Matching */ [SOC_MEMORY_TYPE_DIRAM] = { "RAM", { MALLOC_DIRAM_BASE_CAPS, 0, 0 }}, [SOC_MEMORY_TYPE_DRAM] = { "DRAM", { 0, ESP32S3_MEM_COMMON_CAPS | MALLOC_CAP_INTERNAL | MALLOC_CAP_DMA, 0 }}, [SOC_MEMORY_TYPE_IRAM] = { "IRAM", { MALLOC_CAP_EXEC, MALLOC_CAP_32BIT | MALLOC_CAP_INTERNAL, 0 }}, [SOC_MEMORY_TYPE_SPIRAM] = { "SPIRAM", { MALLOC_CAP_SPIRAM, ESP32S3_MEM_COMMON_CAPS, 0 }}, [SOC_MEMORY_TYPE_RTCRAM] = { "RTCRAM", { MALLOC_CAP_RTCRAM, 0, MALLOC_RTCRAM_BASE_CAPS }}, }; const size_t soc_memory_type_count = sizeof(soc_memory_types) / sizeof(soc_memory_type_desc_t); /** * @brief Region descriptors. These describe all regions of memory available, and map them to a type in the above type. * * @note Because of requirements in the coalescing code which merges adjacent regions, * this list should always be sorted from low to high by start address. * */ /** * Register the shared buffer area of the last memory block into the heap during heap initialization */ #define APP_USABLE_DRAM_END (SOC_ROM_STACK_START - SOC_ROM_STACK_SIZE) const soc_memory_region_t soc_memory_regions[] = { #if CONFIG_ESP32S3_INSTRUCTION_CACHE_16KB && !defined(CONFIG_ESP_SYSTEM_MEMPROT_FEATURE) { 0x40374000, 0x4000, SOC_MEMORY_TYPE_IRAM, 0, false}, //Level 1, IRAM #endif { 0x3FC88000, 0x8000, SOC_MEMORY_TYPE_DIRAM, 0x40378000, false}, //Level 2, IDRAM, can be used as trace memory { 0x3FC90000, 0x10000, SOC_MEMORY_TYPE_DIRAM, 0x40380000, false}, //Level 3, IDRAM, can be used as trace memory { 0x3FCA0000, 0x10000, SOC_MEMORY_TYPE_DIRAM, 0x40390000, false}, //Level 4, IDRAM, can be used as trace memory { 0x3FCB0000, 0x10000, SOC_MEMORY_TYPE_DIRAM, 0x403A0000, false}, //Level 5, IDRAM, can be used as trace memory { 0x3FCC0000, 0x10000, SOC_MEMORY_TYPE_DIRAM, 0x403B0000, false}, //Level 6, IDRAM, can be used as trace memory { 0x3FCD0000, 0x10000, SOC_MEMORY_TYPE_DIRAM, 0x403C0000, false}, //Level 7, IDRAM, can be used as trace memory { 0x3FCE0000, (APP_USABLE_DRAM_END-0x3FCE0000), SOC_MEMORY_TYPE_DIRAM, 0x403D0000, false}, //Level 8, IDRAM, can be used as trace memory, { APP_USABLE_DRAM_END, (SOC_DIRAM_DRAM_HIGH-APP_USABLE_DRAM_END), SOC_MEMORY_TYPE_DIRAM, MAP_DRAM_TO_IRAM(APP_USABLE_DRAM_END), true}, //Level 8, IDRAM, can be used as trace memory, ROM reserved area, recycled by heap allocator in app_main task #if CONFIG_ESP32S3_DATA_CACHE_16KB || CONFIG_ESP32S3_DATA_CACHE_32KB { 0x3FCF0000, 0x8000, SOC_MEMORY_TYPE_DRAM, 0, false}, //Level 9, DRAM, DMA is accessible but retention DMA is inaccessible #endif #if CONFIG_ESP32S3_DATA_CACHE_16KB { 0x3C000000, 0x4000, SOC_MEMORY_TYPE_DRAM, 0, false}, //Level 10, DRAM, DMA is accessible but retention DMA is inaccessible #endif #ifdef CONFIG_SPIRAM { SOC_EXTRAM_DATA_LOW, SOC_EXTRAM_DATA_SIZE, SOC_MEMORY_TYPE_SPIRAM, 0, false}, //SPI SRAM, if available #endif #ifdef CONFIG_ESP_SYSTEM_ALLOW_RTC_FAST_MEM_AS_HEAP { 0x600fe000, 0x2000, SOC_MEMORY_TYPE_RTCRAM, 0, false}, //Fast RTC memory #endif }; const size_t soc_memory_region_count = sizeof(soc_memory_regions) / sizeof(soc_memory_region_t); extern int _data_start, _heap_start, _iram_start, _iram_end, _rtc_force_fast_end, _rtc_noinit_end; // defined in sections.ld.in extern int _rtc_reserved_start, _rtc_reserved_end; /** * Reserved memory regions. * These are removed from the soc_memory_regions array when heaps are created. * */ // Static data region. DRAM used by data+bss and possibly rodata SOC_RESERVE_MEMORY_REGION((intptr_t)&_data_start, (intptr_t)&_heap_start, dram_data); // ESP32S3 has a big D/IRAM region, the part used by code is reserved // The address of the D/I bus are in the same order, directly shift IRAM address to get reserved DRAM address #define I_D_OFFSET (SOC_DIRAM_IRAM_LOW - SOC_DIRAM_DRAM_LOW) // .text region in diram. DRAM used by text (shared with IBUS). SOC_RESERVE_MEMORY_REGION((intptr_t)&_iram_start - I_D_OFFSET, (intptr_t)&_iram_end - I_D_OFFSET, iram_code); #if CONFIG_ESP32S3_INSTRUCTION_CACHE_16KB SOC_RESERVE_MEMORY_REGION((intptr_t)&_iram_start, (intptr_t)&_iram_end, iram_code_2); #endif #ifdef CONFIG_SPIRAM /* Reserve the whole possible SPIRAM region here, spiram.c will add some or all of this * memory to heap depending on the actual SPIRAM chip size. */ SOC_RESERVE_MEMORY_REGION( SOC_EXTRAM_DATA_LOW, SOC_EXTRAM_DATA_HIGH, extram_data_region); #endif #if CONFIG_ESP32S3_TRACEMEM_RESERVE_DRAM > 0 SOC_RESERVE_MEMORY_REGION(TRACEMEM_BLK0_ADDR, TRACEMEM_BLK0_ADDR + CONFIG_ESP32S3_TRACEMEM_RESERVE_DRAM / 2, trace_mem0); SOC_RESERVE_MEMORY_REGION(TRACEMEM_BLK1_ADDR, TRACEMEM_BLK1_ADDR + CONFIG_ESP32S3_TRACEMEM_RESERVE_DRAM / 2, trace_mem1); #endif // RTC Fast RAM region #ifdef CONFIG_ESP_SYSTEM_ALLOW_RTC_FAST_MEM_AS_HEAP #ifdef CONFIG_ESP32S3_RTCDATA_IN_FAST_MEM SOC_RESERVE_MEMORY_REGION(SOC_RTC_DRAM_LOW, (intptr_t)&_rtc_noinit_end, rtcram_data); #else SOC_RESERVE_MEMORY_REGION(SOC_RTC_DRAM_LOW, (intptr_t)&_rtc_force_fast_end, rtcram_data); #endif #endif SOC_RESERVE_MEMORY_REGION((intptr_t)&_rtc_reserved_start, (intptr_t)&_rtc_reserved_end, rtc_reserved_data);