1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * Loongson extioi interrupt controller emulation 4 * Copyright (C) 2024 Loongson Technology Corporation Limited 5 */ 6 #include "qemu/osdep.h" 7 #include "qemu/module.h" 8 #include "qapi/error.h" 9 #include "hw/qdev-properties.h" 10 #include "hw/intc/loongarch_extioi_common.h" 11 #include "migration/vmstate.h" 12 13 static void loongarch_extioi_common_realize(DeviceState *dev, Error **errp) 14 { 15 LoongArchExtIOICommonState *s = (LoongArchExtIOICommonState *)dev; 16 MachineState *machine = MACHINE(qdev_get_machine()); 17 MachineClass *mc = MACHINE_GET_CLASS(machine); 18 const CPUArchIdList *id_list; 19 int i, pin; 20 21 assert(mc->possible_cpu_arch_ids); 22 id_list = mc->possible_cpu_arch_ids(machine); 23 s->num_cpu = id_list->len; 24 s->cpu = g_new0(ExtIOICore, s->num_cpu); 25 if (s->cpu == NULL) { 26 error_setg(errp, "Memory allocation for ExtIOICore faile"); 27 return; 28 } 29 30 for (i = 0; i < s->num_cpu; i++) { 31 s->cpu[i].arch_id = id_list->cpus[i].arch_id; 32 s->cpu[i].cpu = CPU(id_list->cpus[i].cpu); 33 34 for (pin = 0; pin < LS3A_INTC_IP; pin++) { 35 qdev_init_gpio_out(dev, &s->cpu[i].parent_irq[pin], 1); 36 } 37 } 38 } 39 40 static int loongarch_extioi_common_pre_save(void *opaque) 41 { 42 LoongArchExtIOICommonState *s = (LoongArchExtIOICommonState *)opaque; 43 LoongArchExtIOICommonClass *lecc = LOONGARCH_EXTIOI_COMMON_GET_CLASS(s); 44 45 if (lecc->pre_save) { 46 return lecc->pre_save(s); 47 } 48 49 return 0; 50 } 51 52 static int loongarch_extioi_common_post_load(void *opaque, int version_id) 53 { 54 LoongArchExtIOICommonState *s = (LoongArchExtIOICommonState *)opaque; 55 LoongArchExtIOICommonClass *lecc = LOONGARCH_EXTIOI_COMMON_GET_CLASS(s); 56 57 if (lecc->post_load) { 58 return lecc->post_load(s, version_id); 59 } 60 61 return 0; 62 } 63 64 static const VMStateDescription vmstate_extioi_core = { 65 .name = "extioi-core", 66 .version_id = 1, 67 .minimum_version_id = 1, 68 .fields = (const VMStateField[]) { 69 VMSTATE_UINT32_ARRAY(coreisr, ExtIOICore, EXTIOI_IRQS_GROUP_COUNT), 70 VMSTATE_END_OF_LIST() 71 } 72 }; 73 74 static const VMStateDescription vmstate_loongarch_extioi = { 75 .name = "loongarch.extioi", 76 .version_id = 3, 77 .minimum_version_id = 3, 78 .pre_save = loongarch_extioi_common_pre_save, 79 .post_load = loongarch_extioi_common_post_load, 80 .fields = (const VMStateField[]) { 81 VMSTATE_UINT32_ARRAY(bounce, LoongArchExtIOICommonState, 82 EXTIOI_IRQS_GROUP_COUNT), 83 VMSTATE_UINT32_ARRAY(nodetype, LoongArchExtIOICommonState, 84 EXTIOI_IRQS_NODETYPE_COUNT / 2), 85 VMSTATE_UINT32_ARRAY(enable, LoongArchExtIOICommonState, 86 EXTIOI_IRQS / 32), 87 VMSTATE_UINT32_ARRAY(isr, LoongArchExtIOICommonState, 88 EXTIOI_IRQS / 32), 89 VMSTATE_UINT32_ARRAY(ipmap, LoongArchExtIOICommonState, 90 EXTIOI_IRQS_IPMAP_SIZE / 4), 91 VMSTATE_UINT32_ARRAY(coremap, LoongArchExtIOICommonState, 92 EXTIOI_IRQS / 4), 93 VMSTATE_STRUCT_VARRAY_POINTER_UINT32(cpu, LoongArchExtIOICommonState, 94 num_cpu, vmstate_extioi_core, ExtIOICore), 95 VMSTATE_UINT32(features, LoongArchExtIOICommonState), 96 VMSTATE_UINT32(status, LoongArchExtIOICommonState), 97 VMSTATE_END_OF_LIST() 98 } 99 }; 100 101 static const Property extioi_properties[] = { 102 DEFINE_PROP_BIT("has-virtualization-extension", LoongArchExtIOICommonState, 103 features, EXTIOI_HAS_VIRT_EXTENSION, 0), 104 }; 105 106 static void loongarch_extioi_common_class_init(ObjectClass *klass, void *data) 107 { 108 DeviceClass *dc = DEVICE_CLASS(klass); 109 LoongArchExtIOICommonClass *lecc = LOONGARCH_EXTIOI_COMMON_CLASS(klass); 110 111 device_class_set_parent_realize(dc, loongarch_extioi_common_realize, 112 &lecc->parent_realize); 113 device_class_set_props(dc, extioi_properties); 114 dc->vmsd = &vmstate_loongarch_extioi; 115 } 116 117 static const TypeInfo loongarch_extioi_common_types[] = { 118 { 119 .name = TYPE_LOONGARCH_EXTIOI_COMMON, 120 .parent = TYPE_SYS_BUS_DEVICE, 121 .instance_size = sizeof(LoongArchExtIOICommonState), 122 .class_size = sizeof(LoongArchExtIOICommonClass), 123 .class_init = loongarch_extioi_common_class_init, 124 .abstract = true, 125 } 126 }; 127 128 DEFINE_TYPES(loongarch_extioi_common_types) 129