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authorAndreas Färber <afaerber@suse.de>2013-07-07 01:47:51 +0200
committerAndreas Färber <afaerber@suse.de>2013-07-26 23:23:17 +0200
commit67cce5617ee968946fc6402f02743fffaa4a1a02 (patch)
tree9cf4bedac9ecbda2e4fa40a5cf5d11dd478e99b2 /target-xtensa
parent9282b73a4078f10b5d1c96707aeed213eedbc8e1 (diff)
target-xtensa: Introduce XtensaCPU subclasses
Register a CPU type per core registered. Save the XtensaConfig in XtensaCPUClass and copy it from there to CPUXtensaState, to avoid touching every env->config access for now. Prepares for storing per-class GDB register count. Acked-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
Diffstat (limited to 'target-xtensa')
-rw-r--r--target-xtensa/cpu-qom.h3
-rw-r--r--target-xtensa/cpu.c24
-rw-r--r--target-xtensa/helper.c32
3 files changed, 47 insertions, 12 deletions
diff --git a/target-xtensa/cpu-qom.h b/target-xtensa/cpu-qom.h
index b9896f2647..1b9479eb9c 100644
--- a/target-xtensa/cpu-qom.h
+++ b/target-xtensa/cpu-qom.h
@@ -45,6 +45,7 @@
* XtensaCPUClass:
* @parent_realize: The parent class' realize handler.
* @parent_reset: The parent class' reset handler.
+ * @config: The CPU core configuration.
*
* An Xtensa CPU model.
*/
@@ -55,6 +56,8 @@ typedef struct XtensaCPUClass {
DeviceRealize parent_realize;
void (*parent_reset)(CPUState *cpu);
+
+ const XtensaConfig *config;
} XtensaCPUClass;
/**
diff --git a/target-xtensa/cpu.c b/target-xtensa/cpu.c
index d2bcfc69a2..5a39971d2c 100644
--- a/target-xtensa/cpu.c
+++ b/target-xtensa/cpu.c
@@ -64,6 +64,25 @@ static void xtensa_cpu_reset(CPUState *s)
reset_mmu(env);
}
+static ObjectClass *xtensa_cpu_class_by_name(const char *cpu_model)
+{
+ ObjectClass *oc;
+ char *typename;
+
+ if (cpu_model == NULL) {
+ return NULL;
+ }
+
+ typename = g_strdup_printf("%s-" TYPE_XTENSA_CPU, cpu_model);
+ oc = object_class_by_name(typename);
+ g_free(typename);
+ if (oc == NULL || !object_class_dynamic_cast(oc, TYPE_XTENSA_CPU) ||
+ object_class_is_abstract(oc)) {
+ return NULL;
+ }
+ return oc;
+}
+
static void xtensa_cpu_realizefn(DeviceState *dev, Error **errp)
{
XtensaCPUClass *xcc = XTENSA_CPU_GET_CLASS(dev);
@@ -75,10 +94,12 @@ static void xtensa_cpu_initfn(Object *obj)
{
CPUState *cs = CPU(obj);
XtensaCPU *cpu = XTENSA_CPU(obj);
+ XtensaCPUClass *xcc = XTENSA_CPU_GET_CLASS(obj);
CPUXtensaState *env = &cpu->env;
static bool tcg_inited;
cs->env_ptr = env;
+ env->config = xcc->config;
cpu_exec_init(env);
if (tcg_enabled() && !tcg_inited) {
@@ -105,6 +126,7 @@ static void xtensa_cpu_class_init(ObjectClass *oc, void *data)
xcc->parent_reset = cc->reset;
cc->reset = xtensa_cpu_reset;
+ cc->class_by_name = xtensa_cpu_class_by_name;
cc->do_interrupt = xtensa_cpu_do_interrupt;
cc->dump_state = xtensa_cpu_dump_state;
cc->set_pc = xtensa_cpu_set_pc;
@@ -119,7 +141,7 @@ static const TypeInfo xtensa_cpu_type_info = {
.parent = TYPE_CPU,
.instance_size = sizeof(XtensaCPU),
.instance_init = xtensa_cpu_initfn,
- .abstract = false,
+ .abstract = true,
.class_size = sizeof(XtensaCPUClass),
.class_init = xtensa_cpu_class_init,
};
diff --git a/target-xtensa/helper.c b/target-xtensa/helper.c
index de6cc3b7c5..e3098798af 100644
--- a/target-xtensa/helper.c
+++ b/target-xtensa/helper.c
@@ -35,10 +35,27 @@
static struct XtensaConfigList *xtensa_cores;
+static void xtensa_core_class_init(ObjectClass *oc, void *data)
+{
+ XtensaCPUClass *xcc = XTENSA_CPU_CLASS(oc);
+ const XtensaConfig *config = data;
+
+ xcc->config = config;
+}
+
void xtensa_register_core(XtensaConfigList *node)
{
+ TypeInfo type = {
+ .parent = TYPE_XTENSA_CPU,
+ .class_init = xtensa_core_class_init,
+ .class_data = (void *)node->config,
+ };
+
node->next = xtensa_cores;
xtensa_cores = node;
+ type.name = g_strdup_printf("%s-" TYPE_XTENSA_CPU, node->config->name);
+ type_register(&type);
+ g_free((gpointer)type.name);
}
static uint32_t check_hw_breakpoints(CPUXtensaState *env)
@@ -72,24 +89,17 @@ void xtensa_breakpoint_handler(CPUXtensaState *env)
XtensaCPU *cpu_xtensa_init(const char *cpu_model)
{
+ ObjectClass *oc;
XtensaCPU *cpu;
CPUXtensaState *env;
- const XtensaConfig *config = NULL;
- XtensaConfigList *core = xtensa_cores;
-
- for (; core; core = core->next)
- if (strcmp(core->config->name, cpu_model) == 0) {
- config = core->config;
- break;
- }
- if (config == NULL) {
+ oc = cpu_class_by_name(TYPE_XTENSA_CPU, cpu_model);
+ if (oc == NULL) {
return NULL;
}
- cpu = XTENSA_CPU(object_new(TYPE_XTENSA_CPU));
+ cpu = XTENSA_CPU(object_new(object_class_get_name(oc)));
env = &cpu->env;
- env->config = config;
xtensa_irq_init(env);