Add reset support with LoongArch pci irqchip, and register reset
callback support with new API resettable_class_set_parent_phases().
Clear internal HW registers and SW state when virt machine resets.
Signed-off-by: Bibo Mao <maob...@loongson.cn>
Reviewed-by: Song Gao <gaos...@loongson.cn>
---
hw/intc/loongarch_pic_common.c | 25 +++++++++++++++++++++++++
include/hw/intc/loongarch_pic_common.h | 1 +
2 files changed, 26 insertions(+)
diff --git a/hw/intc/loongarch_pic_common.c b/hw/intc/loongarch_pic_common.c
index fdb250c418..6dccacc741 100644
--- a/hw/intc/loongarch_pic_common.c
+++ b/hw/intc/loongarch_pic_common.c
@@ -44,6 +44,27 @@ static void loongarch_pic_common_realize(DeviceState *dev,
Error **errp)
}
}
+static void loongarch_pic_common_reset_hold(Object *obj, ResetType type)
+{
+ LoongArchPICCommonState *s = LOONGARCH_PIC_COMMON(obj);
+ int i;
+
+ s->int_mask = UINT64_MAX;
+ s->htmsi_en = 0x0;
+ s->intedge = 0x0;
+ s->intclr = 0x0;
+ s->auto_crtl0 = 0x0;
+ s->auto_crtl1 = 0x0;
+ for (i = 0; i < 64; i++) {
+ s->route_entry[i] = 0x1;
+ s->htmsi_vector[i] = 0x0;
+ }
+ s->intirr = 0x0;
+ s->intisr = 0x0;
+ s->last_intirr = 0x0;
+ s->int_polarity = 0x0;
+}
+
static const Property loongarch_pic_common_properties[] = {
DEFINE_PROP_UINT32("pch_pic_irq_num", LoongArchPICCommonState, irq_num, 0),
};
@@ -76,9 +97,13 @@ static void loongarch_pic_common_class_init(ObjectClass
*klass,
{
DeviceClass *dc = DEVICE_CLASS(klass);
LoongArchPICCommonClass *lpcc = LOONGARCH_PIC_COMMON_CLASS(klass);
+ ResettableClass *rc = RESETTABLE_CLASS(klass);
device_class_set_parent_realize(dc, loongarch_pic_common_realize,
&lpcc->parent_realize);
+ resettable_class_set_parent_phases(rc, NULL,
+ loongarch_pic_common_reset_hold,
+ NULL, &lpcc->parent_phases);
device_class_set_props(dc, loongarch_pic_common_properties);
dc->vmsd = &vmstate_loongarch_pic_common;
}
diff --git a/include/hw/intc/loongarch_pic_common.h
b/include/hw/intc/loongarch_pic_common.h
index 43cce48978..d301377cd7 100644
--- a/include/hw/intc/loongarch_pic_common.h
+++ b/include/hw/intc/loongarch_pic_common.h
@@ -76,6 +76,7 @@ struct LoongArchPICCommonClass {
SysBusDeviceClass parent_class;
DeviceRealize parent_realize;
+ ResettablePhases parent_phases;
int (*pre_save)(LoongArchPICCommonState *s);
int (*post_load)(LoongArchPICCommonState *s, int version_id);
};
--
2.43.5
