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https://github.com/espressif/esp-idf.git
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64 lines
1.8 KiB
C
64 lines
1.8 KiB
C
/*
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* SPDX-FileCopyrightText: 2010-2022 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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#include <stdlib.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include "sdkconfig.h"
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#include "soc/soc.h"
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#include "soc/soc_caps.h"
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#include "esp_attr.h"
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#include "esp_memory_utils.h"
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//TODO: IDF-4855, replace PSRAM related address region into PSRAM private APIs
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bool esp_ptr_dma_ext_capable(const void *p)
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{
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#ifdef SOC_PSRAM_DMA_CAPABLE
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return (intptr_t)p >= SOC_DMA_EXT_LOW && (intptr_t)p < SOC_DMA_EXT_HIGH;
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#else
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return false;
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#endif
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}
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bool esp_ptr_byte_accessible(const void *p)
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{
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intptr_t ip = (intptr_t) p;
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bool r;
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r = (ip >= SOC_BYTE_ACCESSIBLE_LOW && ip < SOC_BYTE_ACCESSIBLE_HIGH);
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#if CONFIG_ESP_SYSTEM_ALLOW_RTC_FAST_MEM_AS_HEAP
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/* For ESP32 case, RTC fast memory is accessible to PRO cpu only and hence
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* for single core configuration (where it gets added to system heap) following
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* additional check is required */
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r |= (ip >= SOC_RTC_DRAM_LOW && ip < SOC_RTC_DRAM_HIGH);
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#endif
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#if CONFIG_SPIRAM
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#if CONFIG_SPIRAM_SIZE != -1 // Fixed size, can be more accurate
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r |= (ip >= SOC_EXTRAM_DATA_LOW && ip < (SOC_EXTRAM_DATA_LOW + CONFIG_SPIRAM_SIZE));
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#else
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r |= (ip >= SOC_EXTRAM_DATA_LOW && ip < (SOC_EXTRAM_DATA_HIGH));
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#endif
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#endif
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return r;
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}
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bool esp_ptr_external_ram(const void *p) {
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#if SOC_SPIRAM_SUPPORTED
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return ((intptr_t)p >= SOC_EXTRAM_DATA_LOW && (intptr_t)p < SOC_EXTRAM_DATA_HIGH);
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#else
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return false; // SoC has no external RAM
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#endif
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}
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#if CONFIG_SPIRAM_ALLOW_STACK_EXTERNAL_MEMORY
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bool esp_stack_ptr_in_extram(uint32_t sp)
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{
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//Check if stack ptr is in between SOC_EXTRAM_DATA_LOW and SOC_EXTRAM_DATA_HIGH, and 16 byte aligned.
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return !(sp < SOC_EXTRAM_DATA_LOW + 0x10 || sp > SOC_EXTRAM_DATA_HIGH - 0x10 || ((sp & 0xF) != 0));
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}
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#endif
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