Patchwork [v2,1/4] target-m68k: QOM'ify CPU

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Submitter Andreas Färber
Date April 15, 2012, 3:10 a.m.
Message ID <1334459415-20940-2-git-send-email-afaerber@suse.de>
Download mbox | patch
Permalink /patch/152587/
State New
Headers show

Comments

Andreas Färber - April 15, 2012, 3:10 a.m.
Embed CPUM68KState as first member of QOM M68kCPU.
Drop cpu_m68k_close() in favor of object_delete().

Let CPUClass::reset() call cpu_state_reset() for now.

Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 Makefile.target       |    1 +
 target-m68k/cpu-qom.h |   70 +++++++++++++++++++++++++++++++++++++++++++++++++
 target-m68k/cpu.c     |   60 ++++++++++++++++++++++++++++++++++++++++++
 target-m68k/cpu.h     |    3 +-
 target-m68k/helper.c  |   11 +++-----
 5 files changed, 137 insertions(+), 8 deletions(-)
 create mode 100644 target-m68k/cpu-qom.h
 create mode 100644 target-m68k/cpu.c

Patch

diff --git a/Makefile.target b/Makefile.target
index edb16ee..b83fba0 100644
--- a/Makefile.target
+++ b/Makefile.target
@@ -95,6 +95,7 @@  libobj-$(TARGET_ARM) += neon_helper.o iwmmxt_helper.o
 libobj-$(TARGET_ARM) += cpu.o
 libobj-$(TARGET_CRIS) += cpu.o
 libobj-$(TARGET_LM32) += cpu.o
+libobj-$(TARGET_M68K) += cpu.o
 libobj-$(TARGET_MICROBLAZE) += cpu.o
 libobj-$(TARGET_S390X) += cpu.o
 libobj-$(TARGET_SH4) += cpu.o
diff --git a/target-m68k/cpu-qom.h b/target-m68k/cpu-qom.h
new file mode 100644
index 0000000..805786b
--- /dev/null
+++ b/target-m68k/cpu-qom.h
@@ -0,0 +1,70 @@ 
+/*
+ * QEMU Motorola 68k CPU
+ *
+ * Copyright (c) 2012 SUSE LINUX Products GmbH
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see
+ * <http://www.gnu.org/licenses/lgpl-2.1.html>
+ */
+#ifndef QEMU_M68K_CPU_QOM_H
+#define QEMU_M68K_CPU_QOM_H
+
+#include "qemu/cpu.h"
+
+#define TYPE_M68K_CPU "m68k-cpu"
+
+#define M68K_CPU_CLASS(klass) \
+    OBJECT_CLASS_CHECK(M68kCPUClass, (klass), TYPE_M68K_CPU)
+#define M68K_CPU(obj) \
+    OBJECT_CHECK(M68kCPU, (obj), TYPE_M68K_CPU)
+#define M68K_CPU_GET_CLASS(obj) \
+    OBJECT_GET_CLASS(M68kCPUClass, (obj), TYPE_M68K_CPU)
+
+/**
+ * M68kCPUClass:
+ * @parent_reset: The parent class' reset handler.
+ *
+ * A Motorola 68k CPU model.
+ */
+typedef struct M68kCPUClass {
+    /*< private >*/
+    CPUClass parent_class;
+    /*< public >*/
+
+    void (*parent_reset)(CPUState *cpu);
+} M68kCPUClass;
+
+/**
+ * M68kCPU:
+ * @env: #CPUM68KState
+ *
+ * A Motorola 68k CPU.
+ */
+typedef struct M68kCPU {
+    /*< private >*/
+    CPUState parent_obj;
+    /*< public >*/
+
+    CPUM68KState env;
+} M68kCPU;
+
+static inline M68kCPU *m68k_env_get_cpu(CPUM68KState *env)
+{
+    return M68K_CPU(container_of(env, M68kCPU, env));
+}
+
+#define ENV_GET_CPU(e) CPU(m68k_env_get_cpu(e))
+
+
+#endif
diff --git a/target-m68k/cpu.c b/target-m68k/cpu.c
new file mode 100644
index 0000000..457c5c1
--- /dev/null
+++ b/target-m68k/cpu.c
@@ -0,0 +1,60 @@ 
+/*
+ * QEMU Motorola 68k CPU
+ *
+ * Copyright (c) 2012 SUSE LINUX Products GmbH
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see
+ * <http://www.gnu.org/licenses/lgpl-2.1.html>
+ */
+
+#include "cpu.h"
+#include "qemu-common.h"
+
+
+/* CPUClass::reset() */
+static void m68k_cpu_reset(CPUState *s)
+{
+    M68kCPU *cpu = M68K_CPU(s);
+    M68kCPUClass *mcc = M68K_CPU_GET_CLASS(cpu);
+    CPUM68KState *env = &cpu->env;
+
+    mcc->parent_reset(s);
+
+    cpu_state_reset(env);
+}
+
+static void m68k_cpu_class_init(ObjectClass *c, void *data)
+{
+    M68kCPUClass *mcc = M68K_CPU_CLASS(c);
+    CPUClass *cc = CPU_CLASS(c);
+
+    mcc->parent_reset = cc->reset;
+    cc->reset = m68k_cpu_reset;
+}
+
+static const TypeInfo m68k_cpu_type_info = {
+    .name = TYPE_M68K_CPU,
+    .parent = TYPE_CPU,
+    .instance_size = sizeof(M68kCPU),
+    .abstract = false,
+    .class_size = sizeof(M68kCPUClass),
+    .class_init = m68k_cpu_class_init,
+};
+
+static void m68k_cpu_register_types(void)
+{
+    type_register_static(&m68k_cpu_type_info);
+}
+
+type_init(m68k_cpu_register_types)
diff --git a/target-m68k/cpu.h b/target-m68k/cpu.h
index 6696e30..5e6ee50 100644
--- a/target-m68k/cpu.h
+++ b/target-m68k/cpu.h
@@ -116,10 +116,11 @@  typedef struct CPUM68KState {
     uint32_t features;
 } CPUM68KState;
 
+#include "cpu-qom.h"
+
 void m68k_tcg_init(void);
 CPUM68KState *cpu_m68k_init(const char *cpu_model);
 int cpu_m68k_exec(CPUM68KState *s);
-void cpu_m68k_close(CPUM68KState *s);
 void do_interrupt(CPUM68KState *env1);
 void do_interrupt_m68k_hardirq(CPUM68KState *env1);
 /* you can call this signal handler from your SIGBUS and SIGSEGV
diff --git a/target-m68k/helper.c b/target-m68k/helper.c
index 1feed9b..e91acdb 100644
--- a/target-m68k/helper.c
+++ b/target-m68k/helper.c
@@ -164,10 +164,12 @@  void cpu_state_reset(CPUM68KState *env)
 
 CPUM68KState *cpu_m68k_init(const char *cpu_model)
 {
+    M68kCPU *cpu;
     CPUM68KState *env;
     static int inited;
 
-    env = g_malloc0(sizeof(CPUM68KState));
+    cpu = M68K_CPU(object_new(TYPE_M68K_CPU));
+    env = &cpu->env;
     cpu_exec_init(env);
     if (!inited) {
         inited = 1;
@@ -177,7 +179,7 @@  CPUM68KState *cpu_m68k_init(const char *cpu_model)
     env->cpu_model_str = cpu_model;
 
     if (cpu_m68k_set_model(env, cpu_model) < 0) {
-        cpu_m68k_close(env);
+        object_delete(OBJECT(cpu));
         return NULL;
     }
 
@@ -186,11 +188,6 @@  CPUM68KState *cpu_m68k_init(const char *cpu_model)
     return env;
 }
 
-void cpu_m68k_close(CPUM68KState *env)
-{
-    g_free(env);
-}
-
 void cpu_m68k_flush_flags(CPUM68KState *env, int cc_op)
 {
     int flags;