target/hppa: Introduce TYPE_HPPA64_CPU

Prepare for the qemu binary supporting both pa10 and pa20
at the same time.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/hppa/cpu-qom.h

@@ -24,6 +24,7 @@
 #include "qom/object.h"
 
 #define TYPE_HPPA_CPU "hppa-cpu"
+#define TYPE_HPPA64_CPU "hppa64-cpu"
 
 OBJECT_DECLARE_CPU_TYPE(HPPACPU, HPPACPUClass, HPPA_CPU)
 

target/hppa/cpu.c

@@ -209,20 +209,23 @@ static void hppa_cpu_class_init(ObjectClass *oc, void *data)
     cc->tcg_ops = &hppa_tcg_ops;
 }
 
-static const TypeInfo hppa_cpu_type_info = {
-    .name = TYPE_HPPA_CPU,
-    .parent = TYPE_CPU,
-    .instance_size = sizeof(HPPACPU),
-    .instance_align = __alignof(HPPACPU),
-    .instance_init = hppa_cpu_initfn,
-    .abstract = false,
-    .class_size = sizeof(HPPACPUClass),
-    .class_init = hppa_cpu_class_init,
+static const TypeInfo hppa_cpu_type_infos[] = {
+    {
+        .name = TYPE_HPPA_CPU,
+        .parent = TYPE_CPU,
+        .instance_size = sizeof(HPPACPU),
+        .instance_align = __alignof(HPPACPU),
+        .instance_init = hppa_cpu_initfn,
+        .abstract = false,
+        .class_size = sizeof(HPPACPUClass),
+        .class_init = hppa_cpu_class_init,
+    },
+#ifdef TARGET_HPPA64
+    {
+        .name = TYPE_HPPA64_CPU,
+        .parent = TYPE_HPPA_CPU,
+    },
+#endif
 };
 
-static void hppa_cpu_register_types(void)
-{
-    type_register_static(&hppa_cpu_type_info);
-}
-
-type_init(hppa_cpu_register_types)
+DEFINE_TYPES(hppa_cpu_type_infos)

target/hppa/cpu.h

@@ -272,6 +272,11 @@ struct ArchCPU {
 
 #include "exec/cpu-all.h"
 
+static inline bool hppa_is_pa20(CPUHPPAState *env)
+{
+    return object_dynamic_cast(OBJECT(env_cpu(env)), TYPE_HPPA64_CPU) != NULL;
+}
+
 static inline int cpu_mmu_index(CPUHPPAState *env, bool ifetch)
 {
 #ifdef CONFIG_USER_ONLY

target/hppa/translate.c

@@ -262,6 +262,7 @@ typedef struct DisasContext {
     int mmu_idx;
     int privilege;
     bool psw_n_nonzero;
+    bool is_pa20;
 
 #ifdef CONFIG_USER_ONLY
     MemOp unalign;
@@ -4091,6 +4092,7 @@ static void hppa_tr_init_disas_context(DisasContextBase *dcbase, CPUState *cs)
 
     ctx->cs = cs;
     ctx->tb_flags = ctx->base.tb->flags;
+    ctx->is_pa20 = hppa_is_pa20(cpu_env(cs));
 
 #ifdef CONFIG_USER_ONLY
     ctx->privilege = MMU_IDX_TO_PRIV(MMU_USER_IDX);