mirror of
https://github.com/espressif/esp-idf.git
synced 2024-10-05 20:47:46 -04:00
29ae238845
This commit gives basic mmu driver framework. Now it is able to maintain mmu virtual address usage on esp32, esp32s2 and esp32s3. Usage to external virtual address should rely on mmu functions to know which address range is available, instead of hardcoded. This commit also improves psram memory that is added to the heap allocator. Now it's added to the heap, according to the memory alignment. Closes https://github.com/espressif/esp-idf/issues/8295 Closes https://github.com/espressif/esp-idf/issues/9193
68 lines
1.6 KiB
C
68 lines
1.6 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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#if CONFIG_SPIRAM
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#include "esp_private/esp_psram_extram.h"
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#endif
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bool esp_ptr_dma_ext_capable(const void *p)
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{
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#if !SOC_PSRAM_DMA_CAPABLE
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return false;
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#endif //!SOC_PSRAM_DMA_CAPABLE
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#if CONFIG_SPIRAM
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return esp_psram_check_ptr_addr(p);
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#else
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return false;
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#endif //CONFIG_SPIRAM
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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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r |= esp_psram_check_ptr_addr(p);
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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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{
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#if !SOC_SPIRAM_SUPPORTED
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return false;
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#endif //!SOC_SPIRAM_SUPPORTED
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#if CONFIG_SPIRAM
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return esp_psram_check_ptr_addr(p);
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#else
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return false;
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#endif //CONFIG_SPIRAM
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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 on PSRAM, and 16 byte aligned.
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return (esp_psram_check_ptr_addr((void *)sp) && ((sp & 0xF) == 0));
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}
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#endif
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