application: operate eclic shadow register only when it exists(shadow number is greater than 0)

Signed-off-by: dongyongtao <dongyongtao@nucleisys.com>

Author: dongyongtao

application/baremetal/demo_eclic/demo_eclic.c

@@ -114,11 +114,13 @@ int main(int argc, char** argv)
     uint32_t nlbits = ECLIC_GetCfgNlbits();
     printf("ECLIC nlbits configuration: %u\r\n", nlbits);
 #if __ECLIC_VER == 2
-    ECLIC_SetShadowLevel(0, timer_intlevel);
     uint32_t shadow_num = ECLIC_GetInfoShadowNum();
-    printf("ECLIC Shadow Register Groups: %u\r\n", shadow_num);
-    uint64_t shadow_reg_val = ECLIC_GetShadowLevelReg();
-    printf("Shadow Level Register: 0x%08x%08x\r\n", (uint32_t)(shadow_reg_val >> 32), (uint32_t)shadow_reg_val);
+   if (shadow_num > 0) {
+        ECLIC_SetShadowLevel(0, timer_intlevel);
+        printf("ECLIC Shadow Register Groups: %u\r\n", shadow_num);
+        uint64_t shadow_reg_val = ECLIC_GetShadowLevelReg();
+        printf("Shadow Level Register: 0x%08x%08x\r\n", (uint32_t)(shadow_reg_val >> 32), (uint32_t)shadow_reg_val);
+    }
 #endif
 
     // initialize software interrupt as vector interrupt

application/baremetal/demo_eclic_stress/main.c

@@ -927,11 +927,13 @@ static void supervisor_mode_entry_point(void)
      * The first parameter refers to the shadow register index (SHAD1_CFG, SHAD2_CFG, etc.)
      * The second parameter sets the interrupt level threshold for shadow register group
      */
-    ECLIC_SetShadowLevel_S(0, 3);
     uint32_t shadow_num = ECLIC_GetInfoShadowNum();
-    printf("[S] ECLIC Shadow Register Groups: %u\r\n", shadow_num);
-    uint64_t shadow_reg_val = ECLIC_GetShadowLevelReg_S();
-    printf("[S] Supervisor Shadow Level Register: 0x%08x%08x\r\n", (uint32_t)(shadow_reg_val >> 32), (uint32_t)shadow_reg_val);
+   if (shadow_num > 0) {
+        ECLIC_SetShadowLevel_S(0, 3);
+        printf("[S] ECLIC Shadow Register Groups: %u\r\n", shadow_num);
+        uint64_t shadow_reg_val = ECLIC_GetShadowLevelReg_S();
+        printf("[S] Supervisor Shadow Level Register: 0x%08x%08x\r\n", (uint32_t)(shadow_reg_val >> 32), (uint32_t)shadow_reg_val);
+   }
 #endif
 
 #if defined(__SSTC_PRESENT) && (__SSTC_PRESENT == 1)
@@ -1012,11 +1014,13 @@ int initialize_mmode_demo(void)
      * The first parameter refers to the shadow register index (SHAD1_CFG, SHAD2_CFG, etc.)
      * The second parameter sets the interrupt level threshold for shadow register group
      */
-    ECLIC_SetShadowLevel(0, 2);
     uint32_t shadow_num = ECLIC_GetInfoShadowNum();
-    printf("[M] ECLIC Shadow Register Groups: %u\r\n", shadow_num);
-    uint64_t shadow_reg_val = ECLIC_GetShadowLevelReg();
-    printf("[M] Machine Shadow Level Register: 0x%08x%08x\r\n", (uint32_t)(shadow_reg_val >> 32), (uint32_t)shadow_reg_val);
+   if (shadow_num > 0) {
+        ECLIC_SetShadowLevel(0, 2);
+        printf("[M] ECLIC Shadow Register Groups: %u\r\n", shadow_num);
+        uint64_t shadow_reg_val = ECLIC_GetShadowLevelReg();
+        printf("[M] Machine Shadow Level Register: 0x%08x%08x\r\n", (uint32_t)(shadow_reg_val >> 32), (uint32_t)shadow_reg_val);
+   }
 #endif
 
     // Initialize and start M-Mode timer - moved to end of main function

application/baremetal/demo_smode_eclic/demo_smode_eclic.c

@@ -136,11 +136,13 @@ static void supervisor_mode_entry_point(void)
 
     printf("ECLIC nlbits configuration: %u\r\n", nlbits);
 #if __ECLIC_VER == 2
-    ECLIC_SetShadowLevel_S(0, timer_intlevel);
     uint32_t shadow_num = ECLIC_GetInfoShadowNum();
-    printf("ECLIC Shadow Register Groups: %u\r\n", shadow_num);
-    uint64_t shadow_reg_val = ECLIC_GetShadowLevelReg_S();
-    printf("Supervisor Shadow Level Register: 0x%08x%08x\r\n", (uint32_t)(shadow_reg_val >> 32), (uint32_t)shadow_reg_val);
+   if (shadow_num > 0) {
+        ECLIC_SetShadowLevel_S(0, timer_intlevel);
+        printf("ECLIC Shadow Register Groups: %u\r\n", shadow_num);
+        uint64_t shadow_reg_val = ECLIC_GetShadowLevelReg_S();
+        printf("Supervisor Shadow Level Register: 0x%08x%08x\r\n", (uint32_t)(shadow_reg_val >> 32), (uint32_t)shadow_reg_val);
+   }
 #endif
 
     // initialize software interrupt as vector interrupt