[PATCH-for-10.1 3/8] target/mips: Make MIPS_CPU common to new MIPS32_CPU / MIPS64_CPU types

[Philippe Mathieu-Daudé]

"target/foo/cpu-qom.h" can not use any target specific definitions.

Currently "target/mips/cpu-qom.h" defines TYPE_MIPS_CPU depending
on the mips(32)/mips64 build type. This doesn't scale in a
heterogeneous context where we need to access both types concurrently.

In order to do that, introduce the new MIPS32_CPU / MIPS64_CPU types,
both inheriting a common TYPE_MIPS_CPU base type.

Keep the current CPU types registered in mips_register_cpudef_type()
as 32 or 64-bit, but instead of depending on the binary built being
targeting 32/64-bit, check whether the CPU is 64-bit by looking at
the CPU_MIPS64 bit.

Signed-off-by: Philippe Mathieu-Daudé <phi...@linaro.org>
---
 target/mips/cpu-qom.h | 12 ++++++------
 target/mips/cpu.c     | 11 ++++++++++-
 2 files changed, 16 insertions(+), 7 deletions(-)

diff --git a/target/mips/cpu-qom.h b/target/mips/cpu-qom.h
index 0eea2a2598e..9acf647420c 100644
--- a/target/mips/cpu-qom.h
+++ b/target/mips/cpu-qom.h
@@ -1,5 +1,5 @@
 /*
- * QEMU MIPS CPU
+ * QEMU MIPS CPU QOM header (target agnostic)
  *
  * Copyright (c) 2012 SUSE LINUX Products GmbH
  *
@@ -22,12 +22,12 @@
 
 #include "hw/core/cpu.h"
 
-#ifdef TARGET_MIPS64
-#define TYPE_MIPS_CPU "mips64-cpu"
-#else
-#define TYPE_MIPS_CPU "mips-cpu"
-#endif
+#define TYPE_MIPS32_CPU "mips32-cpu"
+#define TYPE_MIPS64_CPU "mips64-cpu"
+#define TYPE_MIPS_CPU   "mips-cpu"
 
+OBJECT_DECLARE_CPU_TYPE(MIPS32CPU, MIPSCPUClass, MIPS32_CPU)
+OBJECT_DECLARE_CPU_TYPE(MIPS64CPU, MIPSCPUClass, MIPS64_CPU)
 OBJECT_DECLARE_CPU_TYPE(MIPSCPU, MIPSCPUClass, MIPS_CPU)
 
 #define MIPS_CPU_TYPE_SUFFIX "-" TYPE_MIPS_CPU
diff --git a/target/mips/cpu.c b/target/mips/cpu.c
index 097554fd8ae..5ed6b3402d3 100644
--- a/target/mips/cpu.c
+++ b/target/mips/cpu.c
@@ -607,6 +607,14 @@ static const TypeInfo mips_cpu_types[] = {
         .abstract       = true,
         .class_size     = sizeof(MIPSCPUClass),
         .class_init     = mips_cpu_class_init,
+    }, {
+        .name           = TYPE_MIPS32_CPU,
+        .parent         = TYPE_MIPS_CPU,
+        .abstract       = true,
+    }, {
+        .name           = TYPE_MIPS64_CPU,
+        .parent         = TYPE_MIPS_CPU,
+        .abstract       = true,
     }
 };
 
@@ -623,7 +631,8 @@ static void mips_register_cpudef_type(const struct 
mips_def_t *def)
     char *typename = mips_cpu_type_name(def->name);
     TypeInfo ti = {
         .name = typename,
-        .parent = TYPE_MIPS_CPU,
+        .parent = def->insn_flags & CPU_MIPS64
+                  ? TYPE_MIPS64_CPU : TYPE_MIPS32_CPU,
         .class_init = mips_cpu_cpudef_class_init,
         .class_data = (void *)def,
     };
-- 
2.47.1