[PATCH v4 02/11] target/loongarch: Add new object class for loongarch32 cpus

[Jiajie Chen]

Add object class for future loongarch32 cpus. It is derived from the
loongarch64 object class.

Signed-off-by: Jiajie Chen <c...@jia.je>
---
 target/loongarch/cpu.c | 24 ++++++++++++++++++++++++
 target/loongarch/cpu.h | 11 +++++++++++
 2 files changed, 35 insertions(+)

diff --git a/target/loongarch/cpu.c b/target/loongarch/cpu.c
index ad93ecac92..3bd293d00a 100644
--- a/target/loongarch/cpu.c
+++ b/target/loongarch/cpu.c
@@ -732,6 +732,10 @@ static void loongarch_cpu_class_init(ObjectClass *c, void 
*data)
 #endif
 }
 
+static void loongarch32_cpu_class_init(ObjectClass *c, void *data)
+{
+}
+
 #define DEFINE_LOONGARCH_CPU_TYPE(model, initfn) \
     { \
         .parent = TYPE_LOONGARCH_CPU, \
@@ -754,3 +758,23 @@ static const TypeInfo loongarch_cpu_type_infos[] = {
 };
 
 DEFINE_TYPES(loongarch_cpu_type_infos)
+
+#define DEFINE_LOONGARCH32_CPU_TYPE(model, initfn) \
+    { \
+        .parent = TYPE_LOONGARCH32_CPU, \
+        .instance_init = initfn, \
+        .name = LOONGARCH_CPU_TYPE_NAME(model), \
+    }
+
+static const TypeInfo loongarch32_cpu_type_infos[] = {
+    {
+        .name = TYPE_LOONGARCH32_CPU,
+        .parent = TYPE_LOONGARCH_CPU,
+        .instance_size = sizeof(LoongArchCPU),
+
+        .abstract = true,
+        .class_size = sizeof(LoongArchCPUClass),
+        .class_init = loongarch32_cpu_class_init,
+    },
+};
+DEFINE_TYPES(loongarch32_cpu_type_infos)
diff --git a/target/loongarch/cpu.h b/target/loongarch/cpu.h
index bf0da8d5b4..396869c3b6 100644
--- a/target/loongarch/cpu.h
+++ b/target/loongarch/cpu.h
@@ -404,6 +404,17 @@ struct LoongArchCPUClass {
     ResettablePhases parent_phases;
 };
 
+#define TYPE_LOONGARCH32_CPU "loongarch32-cpu"
+typedef struct LoongArch32CPUClass LoongArch32CPUClass;
+DECLARE_CLASS_CHECKERS(LoongArch32CPUClass, LOONGARCH32_CPU,
+                       TYPE_LOONGARCH32_CPU)
+
+struct LoongArch32CPUClass {
+    /*< private >*/
+    LoongArchCPUClass parent_class;
+    /*< public >*/
+};
+
 /*
  * LoongArch CPUs has 4 privilege levels.
  * 0 for kernel mode, 3 for user mode.
-- 
2.41.0