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| author | Song Gao <gaosong@loongson.cn> | 2025-09-16 20:21:02 +0800 |
|---|---|---|
| committer | Song Gao <gaosong@loongson.cn> | 2025-09-28 17:31:04 +0800 |
| commit | 4d4baab24179b51072f5e182aa41d44306ed593c (patch) | |
| tree | d78882022d2787309898403d1d71a784acbf385b /hw/intc | |
| parent | 86f4c80ab4a0d7a76d000515425d025004d6cd8b (diff) | |
| download | focaccia-qemu-4d4baab24179b51072f5e182aa41d44306ed593c.tar.gz focaccia-qemu-4d4baab24179b51072f5e182aa41d44306ed593c.zip | |
loongarch: add a direct interrupt controller device
Add Loongarch direct interrupt controller device base Definition. Signed-off-by: Song Gao <gaosong@loongson.cn> Reviewed-by: Bibo Mao <maobibo@loongson.cn> Message-ID: <20250916122109.749813-5-gaosong@loongson.cn>
Diffstat (limited to 'hw/intc')
| -rw-r--r-- | hw/intc/Kconfig | 3 | ||||
| -rw-r--r-- | hw/intc/loongarch_dintc.c | 68 | ||||
| -rw-r--r-- | hw/intc/meson.build | 1 |
3 files changed, 72 insertions, 0 deletions
diff --git a/hw/intc/Kconfig b/hw/intc/Kconfig index 7547528f2c..9f456d7e43 100644 --- a/hw/intc/Kconfig +++ b/hw/intc/Kconfig @@ -109,3 +109,6 @@ config LOONGARCH_PCH_MSI config LOONGARCH_EXTIOI bool + +config LOONGARCH_DINTC + bool diff --git a/hw/intc/loongarch_dintc.c b/hw/intc/loongarch_dintc.c new file mode 100644 index 0000000000..b2465cb022 --- /dev/null +++ b/hw/intc/loongarch_dintc.c @@ -0,0 +1,68 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * QEMU LoongArch direct interrupt controller. + * + * Copyright (C) 2025 Loongson Technology Corporation Limited + */ + +#include "qemu/osdep.h" +#include "hw/sysbus.h" +#include "hw/irq.h" +#include "hw/intc/loongarch_pch_msi.h" +#include "hw/intc/loongarch_pch_pic.h" +#include "hw/intc/loongarch_dintc.h" +#include "hw/pci/msi.h" +#include "hw/misc/unimp.h" +#include "migration/vmstate.h" +#include "trace.h" +#include "hw/qdev-properties.h" + + +static void loongarch_dintc_realize(DeviceState *dev, Error **errp) +{ + LoongArchDINTCClass *lac = LOONGARCH_DINTC_GET_CLASS(dev); + + Error *local_err = NULL; + lac->parent_realize(dev, &local_err); + if (local_err) { + error_propagate(errp, local_err); + return; + } + + return; +} + +static void loongarch_dintc_unrealize(DeviceState *dev) +{ + return; +} + +static void loongarch_dintc_init(Object *obj) +{ + return; +} + +static void loongarch_dintc_class_init(ObjectClass *klass, const void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + LoongArchDINTCClass *lac = LOONGARCH_DINTC_CLASS(klass); + + dc->unrealize = loongarch_dintc_unrealize; + device_class_set_parent_realize(dc, loongarch_dintc_realize, + &lac->parent_realize); +} + +static const TypeInfo loongarch_dintc_info = { + .name = TYPE_LOONGARCH_DINTC, + .parent = TYPE_SYS_BUS_DEVICE, + .instance_size = sizeof(LoongArchDINTCState), + .instance_init = loongarch_dintc_init, + .class_init = loongarch_dintc_class_init, +}; + +static void loongarch_dintc_register_types(void) +{ + type_register_static(&loongarch_dintc_info); +} + +type_init(loongarch_dintc_register_types) diff --git a/hw/intc/meson.build b/hw/intc/meson.build index 3efb276b6e..faae20b93d 100644 --- a/hw/intc/meson.build +++ b/hw/intc/meson.build @@ -80,3 +80,4 @@ specific_ss.add(when: 'CONFIG_LOONGARCH_PCH_MSI', if_true: files('loongarch_pch_ specific_ss.add(when: 'CONFIG_LOONGARCH_EXTIOI', if_true: files('loongarch_extioi.c', 'loongarch_extioi_common.c')) specific_ss.add(when: ['CONFIG_KVM', 'CONFIG_LOONGARCH_EXTIOI'], if_true: files('loongarch_extioi_kvm.c')) +specific_ss.add(when: 'CONFIG_LOONGARCH_DINTC', if_true: files('loongarch_dintc.c')) |