espressif/esp-idf
1
0
Fork 1
mirror of https://github.com/espressif/esp-idf.git synced 2026-05-04 20:05:25 +02:00
Code Issues Packages Projects Releases Wiki Activity

Merge branch 'feature/added_cache_msync_behaviour_per_direction' into 'master'

Browse Source 
feat(cache): added direction selection to esp_cache_msync API

Closes IDF-7674

See merge request espressif/esp-idf!24614
This commit is contained in:
Armando (Dou Yiwen)
2023-07-17 18:04:42 +08:00
parent 447704bb7f c8f8490a56
commit 2d4dabda25
8 changed files with 70 additions and 35 deletions
Download Patch File Download Diff File Expand all files Collapse all files
docs/en/api-reference/system/mm.rst
+5
View File
@@ -153,6 +153,11 @@ SPI Flash can be accessed by SPI1 (ESP-IDF `esp_flash` driver APIs), or by point
PSRAM can also be accessed by EDMA. Data desynchronisation may happen because hardware does not guarantee the data consistency under such condition. You should call :cpp:func:`esp_cache_msync` to synchronise the Cache and the PSRAM.
:cpp:func:`esp_cache_msync` has two synchronization directions,
* c:macro:`ESP_CACHE_MSYNC_FLAG_DIR_C2M`: from cache to memory. By default (if you don't specify a direction), the synchronization is in this direction. Content in the address you specified will be written back to the memory.
* c:macro:`ESP_CACHE_MSYNC_FLAG_DIR_M2C`: from memory to cache. By default, content in the address you specified will be invalidated from the cache.
Thread Safety
=============