target/hppa: Enable MTTCG

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

configure

@@ -6555,6 +6555,7 @@ case "$target_name" in
   cris)
   ;;
   hppa)
+    mttcg="yes"
   ;;
   lm32)
   ;;

target/hppa/cpu.h

@@ -42,6 +42,12 @@
 #define TARGET_PHYS_ADDR_SPACE_BITS 32
 #endif
 
+/* PA-RISC 1.x processors have a strong memory model.  */
+/* ??? While we do not yet implement PA-RISC 2.0, those processors have
+   a weak memory model, but with TLB bits that force ordering on a per-page
+   basis.  It's probably easier to fall back to a strong memory model.  */
+#define TCG_GUEST_DEFAULT_MO        TCG_MO_ALL
+
 #define CPUArchState struct CPUHPPAState
 
 #include "exec/cpu-defs.h"