[PATCH-for-10.1 6/8] target/mips: Introduce mips_cpu_is_64bit() helper

["Philippe Mathieu-Daudé" <philmd@linaro.org>]

mips_cpu_is_64bit() returns whether the CPU is a
32-bit or a 64-bit one.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 target/mips/cpu-qom.h | 2 ++
 target/mips/cpu.c     | 6 ++++++
 2 files changed, 8 insertions(+)

diff --git a/target/mips/cpu-qom.h b/target/mips/cpu-qom.h
index 9acf647420c..52996e7c354 100644
--- a/target/mips/cpu-qom.h
+++ b/target/mips/cpu-qom.h
@@ -33,4 +33,6 @@ OBJECT_DECLARE_CPU_TYPE(MIPSCPU, MIPSCPUClass, MIPS_CPU)
 #define MIPS_CPU_TYPE_SUFFIX "-" TYPE_MIPS_CPU
 #define MIPS_CPU_TYPE_NAME(model) model MIPS_CPU_TYPE_SUFFIX
 
+bool mips_cpu_is_64bit(MIPSCPU *cpu);
+
 #endif
diff --git a/target/mips/cpu.c b/target/mips/cpu.c
index d8930468b7d..05b3ce42af5 100644
--- a/target/mips/cpu.c
+++ b/target/mips/cpu.c
@@ -516,6 +516,12 @@ static void mips_cpu_initfn(Object *obj)
 #endif
 }
 
+bool mips_cpu_is_64bit(MIPSCPU *cpu)
+{
+    return !!object_class_dynamic_cast(OBJECT_CLASS(CPU(cpu)->cc),
+                                       TYPE_MIPS64_CPU);
+}
+
 static char *mips_cpu_type_name(const char *cpu_model)
 {
     return g_strdup_printf(MIPS_CPU_TYPE_NAME("%s"), cpu_model);
-- 
2.47.1