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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Loongson extioi interrupt controller emulation
* Copyright (C) 2024 Loongson Technology Corporation Limited
*/
#include "qemu/osdep.h"
#include "qemu/module.h"
#include "qapi/error.h"
#include "hw/qdev-properties.h"
#include "hw/intc/loongarch_extioi_common.h"
#include "migration/vmstate.h"
static void loongarch_extioi_common_realize(DeviceState *dev, Error **errp)
{
LoongArchExtIOICommonState *s = (LoongArchExtIOICommonState *)dev;
if (s->num_cpu == 0) {
error_setg(errp, "num-cpu must be at least 1");
return;
}
}
static int loongarch_extioi_common_pre_save(void *opaque)
{
LoongArchExtIOICommonState *s = (LoongArchExtIOICommonState *)opaque;
LoongArchExtIOICommonClass *lecc = LOONGARCH_EXTIOI_COMMON_GET_CLASS(s);
if (lecc->pre_save) {
return lecc->pre_save(s);
}
return 0;
}
static int loongarch_extioi_common_post_load(void *opaque, int version_id)
{
LoongArchExtIOICommonState *s = (LoongArchExtIOICommonState *)opaque;
LoongArchExtIOICommonClass *lecc = LOONGARCH_EXTIOI_COMMON_GET_CLASS(s);
if (lecc->post_load) {
return lecc->post_load(s, version_id);
}
return 0;
}
static const VMStateDescription vmstate_extioi_core = {
.name = "extioi-core",
.version_id = 1,
.minimum_version_id = 1,
.fields = (const VMStateField[]) {
VMSTATE_UINT32_ARRAY(coreisr, ExtIOICore, EXTIOI_IRQS_GROUP_COUNT),
VMSTATE_END_OF_LIST()
}
};
static const VMStateDescription vmstate_loongarch_extioi = {
.name = "loongarch.extioi",
.version_id = 3,
.minimum_version_id = 3,
.pre_save = loongarch_extioi_common_pre_save,
.post_load = loongarch_extioi_common_post_load,
.fields = (const VMStateField[]) {
VMSTATE_UINT32_ARRAY(bounce, LoongArchExtIOICommonState,
EXTIOI_IRQS_GROUP_COUNT),
VMSTATE_UINT32_ARRAY(nodetype, LoongArchExtIOICommonState,
EXTIOI_IRQS_NODETYPE_COUNT / 2),
VMSTATE_UINT32_ARRAY(enable, LoongArchExtIOICommonState,
EXTIOI_IRQS / 32),
VMSTATE_UINT32_ARRAY(isr, LoongArchExtIOICommonState,
EXTIOI_IRQS / 32),
VMSTATE_UINT32_ARRAY(ipmap, LoongArchExtIOICommonState,
EXTIOI_IRQS_IPMAP_SIZE / 4),
VMSTATE_UINT32_ARRAY(coremap, LoongArchExtIOICommonState,
EXTIOI_IRQS / 4),
VMSTATE_STRUCT_VARRAY_POINTER_UINT32(cpu, LoongArchExtIOICommonState,
num_cpu, vmstate_extioi_core, ExtIOICore),
VMSTATE_UINT32(features, LoongArchExtIOICommonState),
VMSTATE_UINT32(status, LoongArchExtIOICommonState),
VMSTATE_END_OF_LIST()
}
};
static const Property extioi_properties[] = {
DEFINE_PROP_UINT32("num-cpu", LoongArchExtIOICommonState, num_cpu, 1),
DEFINE_PROP_BIT("has-virtualization-extension", LoongArchExtIOICommonState,
features, EXTIOI_HAS_VIRT_EXTENSION, 0),
DEFINE_PROP_END_OF_LIST(),
};
static void loongarch_extioi_common_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
LoongArchExtIOICommonClass *lecc = LOONGARCH_EXTIOI_COMMON_CLASS(klass);
device_class_set_parent_realize(dc, loongarch_extioi_common_realize,
&lecc->parent_realize);
device_class_set_props(dc, extioi_properties);
dc->vmsd = &vmstate_loongarch_extioi;
}
static const TypeInfo loongarch_extioi_common_types[] = {
{
.name = TYPE_LOONGARCH_EXTIOI_COMMON,
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(LoongArchExtIOICommonState),
.class_size = sizeof(LoongArchExtIOICommonClass),
.class_init = loongarch_extioi_common_class_init,
.abstract = true,
}
};
DEFINE_TYPES(loongarch_extioi_common_types)
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