sw: Remove DMA waits again and move to main

sw/snRuntime/src/start.c

@@ -49,10 +49,7 @@ static inline void snrt_init_tls() {
             snrt_dma_start_1d((void*)(tls_ptr + i * tls_offset),
                               (void*)(snrt_zero_memory_ptr()), size);
         }
-        snrt_dma_wait_all();
     }
-
-    snrt_cluster_hw_barrier();
 }
 #endif
 
@@ -65,7 +62,6 @@ static inline void snrt_init_bss() {
         size_t size = (size_t)(&__bss_end) - (size_t)(&__bss_start);
         snrt_dma_start_1d_wideptr((uint64_t)(&__bss_start),
                                   (uint64_t)(snrt_zero_memory_ptr()), size);
-        snrt_dma_wait_all();
     }
 }
 #endif
@@ -90,7 +86,6 @@ static inline void snrt_init_cls() {
         ptr = (void*)((uint32_t)ptr + size);
         size = (size_t)(&__cbss_end) - (size_t)(&__cbss_start);
         snrt_dma_start_1d(ptr, (void*)(snrt_zero_memory_ptr()), size);
-        snrt_dma_wait_all();
     }
 }
 #endif
@@ -141,9 +136,9 @@ void snrt_main() {
     snrt_init_cls();
 #endif
 
-#if defined(SNRT_INIT_BSS) || defined(SNRT_INIT_CLS)
-    // Single DMA wait call and barrier for both snrt_init_bss() and
-    // snrt_init_cls()
+#if defined(SNRT_INIT_TLS) || defined(SNRT_INIT_BSS) || defined(SNRT_INIT_CLS)
+    // Single DMA wait call and barrier for snrt_init_tls(),
+    // snrt_init_bss() and snrt_init_cls()
     if (snrt_is_dm_core()) snrt_dma_wait_all();
     snrt_cluster_hw_barrier();
 #endif