Extend sp_msg register count by moving routing extension bits
Move routing extension bits to the top of W3 and make the rest of W3
available in the sp_msg structure. This way the caller of the
sp_messaging layer can use up to five argument registers. If the routing
extension is enabled the two MSBs of the first register are not
available for the caller.
Signed-off-by: Imre Kis <imre.kis@arm.com>
Change-Id: I06b155272631662adb8713aade1edbf48a3bc4a9
diff --git a/components/messaging/ffa/libsp/include/sp_messaging.h b/components/messaging/ffa/libsp/include/sp_messaging.h
index 7173a92..c1c5a7a 100644
--- a/components/messaging/ffa/libsp/include/sp_messaging.h
+++ b/components/messaging/ffa/libsp/include/sp_messaging.h
@@ -16,7 +16,7 @@
extern "C" {
#endif
-#define SP_MSG_ARG_COUNT (4)
+#define SP_MSG_ARG_COUNT (5)
/**
* @brief SP message type