esp_psram_extram_writeback_cache() function

Force a writeback of the data in the PSRAM cache. This is to be called whenever cache is disabled, because disabling cache on the ESP32 discards the data in the PSRAM cache. This is meant for use from within the SPI flash code.

Syntax

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Summary

Declaration

Definition

from esp_psram_extram.h:71

void esp_psram_extram_writeback_cache(void);

Implemented in esp_psram_extram_cache.c:24

References

Code

Location

Referrer

void IRAM_ATTR esp_psram_extram_writeback_cache(void)

esp_psram_extram_cache.c:24

void esp_psram_extram_writeback_cache(void);

esp_psram_extram.h:71

esp_psram_extram_writeback_cache();

esp_himem.c:356

esp_himem_unmap()

esp_psram_extram_writeback_cache,

esp_psram.c:360

esp_psram_init()

Call Tree

esp_psram_extram_writeback_cache() is called by 1 function and calls 2 functions:

esp_himem_unmap()

esp_psram_extram_writeback_cache()

esp_dport_access_reg_read()

esp_psram_is_initialized()

Data Use

esp_psram_extram_writeback_cache() writes 1 variable:

esp_psram_extram_writeback_cache()

esp_psram_init()

Class Tree

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Override Tree

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Implementations

esp_psram_extram_writeback_cache() is implemented by 1 functions:

esp_psram_extram_writeback_cache()

cache_driver_s::cache_writeback_psram

Instances

Lifecycle

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