esp_intr: Split RTC interrupt, making some of signals can be triggered with cache disabled

components/esp_hw_support/include/esp_private/rtc_ctrl.h

@@ -14,6 +14,8 @@
 extern "C" {
 #endif
 
+#define RTC_INTR_FLAG_IRAM   (BIT(0))  /*< Some rtc interrupts can be called with cache disabled */
+
 /**
  * @brief Register a handler for specific RTC_CNTL interrupts
  *
@@ -25,13 +27,17 @@ extern "C" {
  * @param handler_arg  argument to be passed to the handler
  * @param rtc_intr_mask  combination of RTC_CNTL_*_INT_ENA bits indicating the
  *                       sources to call the handler for
+ * @param flags  An ORred mask of the RTC_INTR_FLAG_* defines. You can pass different
+ *               flags to it to realize different purpose. If 0, the interrupt will
+ *               not handle anything special. If you pass `RTC_INTR_FLAG_IRAM`, means
+ *               the interrupt can be triggered with cache disabled.
  * @return
  *      - ESP_OK on success
  *      - ESP_ERR_NO_MEM not enough memory to allocate handler structure
  *      - other errors returned by esp_intr_alloc
  */
 esp_err_t rtc_isr_register(intr_handler_t handler, void* handler_arg,
-                            uint32_t rtc_intr_mask);
+                            uint32_t rtc_intr_mask, uint32_t flags);
 /**
  * @brief Deregister the handler previously registered using rtc_isr_register
  * @param handler  handler function to call (as passed to rtc_isr_register)
@@ -43,6 +49,24 @@ esp_err_t rtc_isr_register(intr_handler_t handler, void* handler_arg,
  */
 esp_err_t rtc_isr_deregister(intr_handler_t handler, void* handler_arg);
 
+/**
+ * @brief Disable the RTC interrupt that is allowed to be executed when cache is disabled.
+ * cache disabled. Internal interrupt handle function will call this function in interrupt
+ * handler function. Disable bits when `esp_intr_noniram_disable` is called.
+ *
+ * @param cpu CPU number.
+ */
+void rtc_isr_noniram_disable(uint32_t cpu);
+
+/**
+ * @brief Enable the RTC interrupt that is allowed to be executed when cache is disabled.
+ * cache disabled. Internal interrupt handle function will call this function in interrupt
+ * handler function. Enable bits when `esp_intr_noniram_enable` is called.
+ *
+ * @param cpu CPU number.
+ */
+void rtc_isr_noniram_enable(uint32_t cpu);
+
 #ifdef __cplusplus
 }
 #endif