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fix(cache): disable branch predictor when cache freeze

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This commit is contained in:
armando
2025-03-26 16:07:17 +08:00
parent df1f0f51f4
commit 6bb78e4573
3 changed files with 50 additions and 11 deletions
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13
components/spi_flash/cache_utils.c
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@@ -58,11 +58,11 @@
#include "esp_memory_utils.h"
#include "esp_intr_alloc.h"
#include "spi_flash_override.h"
#include "esp_private/esp_cache_private.h"
#include "esp_private/cache_utils.h"
#include "esp_private/spi_flash_os.h"
#include "esp_private/freertos_idf_additions_priv.h"
#include "esp_log.h"
#include "esp_cpu.h"
static __attribute__((unused)) const char *TAG = "cache";
@@ -364,19 +364,12 @@ void IRAM_ATTR spi_flash_enable_cache(uint32_t cpuid)
void IRAM_ATTR spi_flash_disable_cache(uint32_t cpuid, uint32_t *saved_state)
{
#if SOC_BRANCH_PREDICTOR_SUPPORTED
//branch predictor will start cache request as well
esp_cpu_branch_prediction_disable();
#endif
cache_hal_suspend(CACHE_LL_LEVEL_EXT_MEM, CACHE_TYPE_ALL);
esp_cache_suspend_ext_mem_cache();
}
void IRAM_ATTR spi_flash_restore_cache(uint32_t cpuid, uint32_t saved_state)
{
cache_hal_resume(CACHE_LL_LEVEL_EXT_MEM, CACHE_TYPE_ALL);
#if SOC_BRANCH_PREDICTOR_SUPPORTED
esp_cpu_branch_prediction_enable();
#endif
esp_cache_resume_ext_mem_cache();
}
bool IRAM_ATTR spi_flash_cache_enabled(void)