fix(esp32c5): add CLIC interrupt controller support for the ESP32-C5

components/riscv/include/esp_private/interrupt_plic.h

@@ -9,12 +9,29 @@
 #include <stdint.h>
 #include <assert.h>
 #include "esp_attr.h"
+#include "soc/interrupt_reg.h"
+#include "soc/soc_caps.h"
+
+#if SOC_INT_PLIC_SUPPORTED
 
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
+
+/**
+ * @brief Set global masking level. On the PLIC, all interrupt priority levels strictly less than the threshold
+ * level are masked.
+ */
+#define RVHAL_INTR_ENABLE_THRESH    1
+
+/**
+ * @brief Bitmask to enable the vector mode when writing MTVEC CSR.
+ * Setting mode field to 1 treats `MTVEC` as a vector base address.
+ */
+#define MTVEC_MODE_CSR          1
+
 /**
  * In the case of PLIC, all the interrupt lines are dedicated to external peripherals, so the offset is 0
  */
@@ -27,7 +44,29 @@ FORCE_INLINE_ATTR void assert_valid_rv_int_num(int rv_int_num)
     assert(rv_int_num != 0 && "Invalid CPU interrupt number");
 }
 
+/**
+ * @brief Get the enabled interrupts on the current CPU.
+ *
+ * @return Bit mask of the enabled interrupts
+ */
+FORCE_INLINE_ATTR uint32_t rv_utils_intr_get_enabled_mask(void)
+{
+    return REG_READ(INTERRUPT_CORE0_CPU_INT_ENABLE_REG);
+}
+
+/**
+ * @brief Acknowledge an edge interrupt
+ *
+ * @param intr_num Interrupt number (from 0 to 31)
+ */
+FORCE_INLINE_ATTR void rv_utils_intr_edge_ack(uint32_t intr_num)
+{
+    REG_SET_BIT(INTERRUPT_CORE0_CPU_INT_CLEAR_REG, intr_num);
+}
+
 
 #ifdef __cplusplus
 }
 #endif
+
+#endif /* SOC_INT_PLIC_SUPPORTED */