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fix(spi_flash): integrate branch prediction control during cache operations

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This commit is contained in:
wuzhenghui
2026-08-24 13:27:04 +08:00
committed by Ashish Sharma
parent d631bca52f
commit ab48e180ac
5 changed files with 64 additions and 23 deletions
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components/esp_hw_support/sleep_cache.c
+6
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@@ -31,6 +31,9 @@ void sleep_cache_suspend(void)
// If the access to external memory hits in the cache, it will not trigger a cache error. So in order to
// fully check the access to external memory, writeback & invalidate is needed here.
Cache_WriteBack_Invalidate_All(CACHE_MAP_MASK);
#endif
#if SOC_BRANCH_PREDICTOR_SUPPORTED
esp_cpu_branch_prediction_disable();
#endif
spi_flash_disable_cache(esp_cpu_get_core_id(), &s_cache_state);
}
@@ -43,6 +46,9 @@ void sleep_cache_resume(void)
assert(s_cache_suspend_cnt >= 0 && DRAM_STR("cache resume doesn't match suspend ops"));
if (s_cache_suspend_cnt == 0) {
spi_flash_restore_cache(esp_cpu_get_core_id(), s_cache_state);
#if SOC_BRANCH_PREDICTOR_SUPPORTED
esp_cpu_branch_prediction_enable();
#endif
}
}