1 files changed, 11 insertions, 0 deletions
diff --git a/import/chips/p9/procedures/ppe/pk/trace/pk_trace_binary.c b/import/chips/p9/procedures/ppe/pk/trace/pk_trace_binary.c
index 5bc63179..c6680a32 100644
--- a/import/chips/p9/procedures/ppe/pk/trace/pk_trace_binary.c
+++ b/import/chips/p9/procedures/ppe/pk/trace/pk_trace_binary.c
@@ -85,6 +85,17 @@ void pk_trace_binary(uint32_t i_hash_and_size, void* bufp)
     //calculate the offset for the next entry in the cb
     state.offset = footer_offset + sizeof(PkTraceBinary);
 
+#ifdef PK_TRACE_BUFFER_WRAP_MARKER
+
+    //insert marker to indicate when circular buffer wraps
+    if ((state.offset & PK_TRACE_SZ) ^ G_wrap_mask)
+    {
+        G_wrap_mask = state.offset & PK_TRACE_SZ;
+        asm volatile ("tw 0, 31, 31");
+    }
+
+#endif
+
     //update the cb state (tbu and offset)
     g_pk_trace_buf.state.word64 = state.word64;