Patchwork [v2,1/3] target-lm32: QOM'ify CPU

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Submitter Andreas Färber
Date April 11, 2012, 12:22 a.m.
Message ID <1334103778-23695-2-git-send-email-afaerber@suse.de>
Download mbox | patch
Permalink /patch/151715/
State New
Headers show

Comments

Andreas Färber - April 11, 2012, 12:22 a.m.
Embed CPULM32State as first member of QOM LM32CPU.
Let CPUClass::reset() call cpu_state_reset() for now.

Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 Makefile.target       |    1 +
 target-lm32/cpu-qom.h |   71 +++++++++++++++++++++++++++++++++++++++++++++++++
 target-lm32/cpu.c     |   60 +++++++++++++++++++++++++++++++++++++++++
 target-lm32/cpu.h     |    1 +
 target-lm32/helper.c  |    4 ++-
 5 files changed, 136 insertions(+), 1 deletions(-)
 create mode 100644 target-lm32/cpu-qom.h
 create mode 100644 target-lm32/cpu.c

Patch

diff --git a/Makefile.target b/Makefile.target
index 965c020..383009e 100644
--- a/Makefile.target
+++ b/Makefile.target
@@ -93,6 +93,7 @@  libobj-$(TARGET_SPARC64) += vis_helper.o
 libobj-$(CONFIG_NEED_MMU) += mmu.o
 libobj-$(TARGET_ARM) += neon_helper.o iwmmxt_helper.o
 libobj-$(TARGET_ARM) += cpu.o
+libobj-$(TARGET_LM32) += cpu.o
 libobj-$(TARGET_S390X) += cpu.o
 ifeq ($(TARGET_BASE_ARCH), sparc)
 libobj-y += fop_helper.o cc_helper.o win_helper.o mmu_helper.o ldst_helper.o
diff --git a/target-lm32/cpu-qom.h b/target-lm32/cpu-qom.h
new file mode 100644
index 0000000..4ae2edd
--- /dev/null
+++ b/target-lm32/cpu-qom.h
@@ -0,0 +1,71 @@ 
+/*
+ * QEMU LatticeMico32 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_LM32_CPU_QOM_H
+#define QEMU_LM32_CPU_QOM_H
+
+#include "qemu/cpu.h"
+#include "cpu.h"
+
+#define TYPE_LM32_CPU "lm32-cpu"
+
+#define LM32_CPU_CLASS(klass) \
+    OBJECT_CLASS_CHECK(LM32CPUClass, (klass), TYPE_LM32_CPU)
+#define LM32_CPU(obj) \
+    OBJECT_CHECK(LM32CPU, (obj), TYPE_LM32_CPU)
+#define LM32_CPU_GET_CLASS(obj) \
+    OBJECT_GET_CLASS(LM32CPUClass, (obj), TYPE_LM32_CPU)
+
+/**
+ * LM32CPUClass:
+ * @parent_reset: The parent class' reset handler.
+ *
+ * A LatticeMico32 CPU model.
+ */
+typedef struct LM32CPUClass {
+    /*< private >*/
+    CPUClass parent_class;
+    /*< public >*/
+
+    void (*parent_reset)(CPUState *cpu);
+} LM32CPUClass;
+
+/**
+ * LM32CPU:
+ * @env: #CPULM32State
+ *
+ * A LatticeMico32 CPU.
+ */
+typedef struct LM32CPU {
+    /*< private >*/
+    CPUState parent_obj;
+    /*< public >*/
+
+    CPULM32State env;
+} LM32CPU;
+
+static inline LM32CPU *lm32_env_get_cpu(CPULM32State *env)
+{
+    return LM32_CPU(container_of(env, LM32CPU, env));
+}
+
+#define ENV_GET_CPU(e) CPU(lm32_env_get_cpu(e))
+
+
+#endif
diff --git a/target-lm32/cpu.c b/target-lm32/cpu.c
new file mode 100644
index 0000000..4ce7e3b
--- /dev/null
+++ b/target-lm32/cpu.c
@@ -0,0 +1,60 @@ 
+/*
+ * QEMU LatticeMico32 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-qom.h"
+#include "qemu-common.h"
+
+
+/* CPUClass::reset() */
+static void lm32_cpu_reset(CPUState *s)
+{
+    LM32CPU *cpu = LM32_CPU(s);
+    LM32CPUClass *lcc = LM32_CPU_GET_CLASS(cpu);
+    CPULM32State *env = &cpu->env;
+
+    lcc->parent_reset(s);
+
+    cpu_state_reset(env);
+}
+
+static void lm32_cpu_class_init(ObjectClass *oc, void *data)
+{
+    LM32CPUClass *lcc = LM32_CPU_CLASS(oc);
+    CPUClass *cc = CPU_CLASS(oc);
+
+    lcc->parent_reset = cc->reset;
+    cc->reset = lm32_cpu_reset;
+}
+
+static const TypeInfo lm32_cpu_type_info = {
+    .name = TYPE_LM32_CPU,
+    .parent = TYPE_CPU,
+    .instance_size = sizeof(LM32CPU),
+    .abstract = false,
+    .class_size = sizeof(LM32CPUClass),
+    .class_init = lm32_cpu_class_init,
+};
+
+static void lm32_cpu_register_types(void)
+{
+    type_register_static(&lm32_cpu_type_info);
+}
+
+type_init(lm32_cpu_register_types)
diff --git a/target-lm32/cpu.h b/target-lm32/cpu.h
index a7d9546..422a55b 100644
--- a/target-lm32/cpu.h
+++ b/target-lm32/cpu.h
@@ -184,6 +184,7 @@  struct CPULM32State {
 
 };
 
+#include "cpu-qom.h"
 
 CPULM32State *cpu_lm32_init(const char *cpu_model);
 void cpu_lm32_list(FILE *f, fprintf_function cpu_fprintf);
diff --git a/target-lm32/helper.c b/target-lm32/helper.c
index 78076e4..3cf86d7 100644
--- a/target-lm32/helper.c
+++ b/target-lm32/helper.c
@@ -194,6 +194,7 @@  static uint32_t cfg_by_def(const LM32Def *def)
 
 CPULM32State *cpu_lm32_init(const char *cpu_model)
 {
+    LM32CPU *cpu;
     CPULM32State *env;
     const LM32Def *def;
     static int tcg_initialized;
@@ -203,7 +204,8 @@  CPULM32State *cpu_lm32_init(const char *cpu_model)
         return NULL;
     }
 
-    env = g_malloc0(sizeof(CPULM32State));
+    cpu = LM32_CPU(object_new(TYPE_LM32_CPU));
+    env = &cpu->env;
 
     env->features = def->features;
     env->num_bps = def->num_breakpoints;