From 2e84e107a0309073d2427dc2c400d02a554afd9d Mon Sep 17 00:00:00 2001 From: BALATON Zoltan Date: Thu, 25 Mar 2021 14:50:39 +0100 Subject: [PATCH] vt82c686: Introduce abstract TYPE_VIA_ISA and base vt82c686b_isa on it MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit To allow reusing ISA bridge emulation for vt8231_isa move the device state of vt82c686b_isa emulation in an abstract via_isa class. This change breaks migration back compatibility but this is not an issue for Fuloong2E machine which is not versioned or migration supported. Signed-off-by: BALATON Zoltan Reviewed-by: Philippe Mathieu-Daudé Message-Id: <0cb8fc69c7aaa555589181931b881335fecd2ef3.1616680239.git.balaton@eik.bme.hu> Signed-off-by: David Gibson --- hw/isa/vt82c686.c | 70 ++++++++++++++++++++++------------------ include/hw/pci/pci_ids.h | 2 +- 2 files changed, 40 insertions(+), 32 deletions(-) diff --git a/hw/isa/vt82c686.c b/hw/isa/vt82c686.c index 952c6fc867..b09bfe3fa2 100644 --- a/hw/isa/vt82c686.c +++ b/hw/isa/vt82c686.c @@ -534,24 +534,48 @@ static const TypeInfo vt8231_superio_info = { }; -OBJECT_DECLARE_SIMPLE_TYPE(VT82C686BISAState, VT82C686B_ISA) +#define TYPE_VIA_ISA "via-isa" +OBJECT_DECLARE_SIMPLE_TYPE(ViaISAState, VIA_ISA) -struct VT82C686BISAState { +struct ViaISAState { PCIDevice dev; qemu_irq cpu_intr; ViaSuperIOState *via_sio; }; +static const VMStateDescription vmstate_via = { + .name = "via-isa", + .version_id = 1, + .minimum_version_id = 1, + .fields = (VMStateField[]) { + VMSTATE_PCI_DEVICE(dev, ViaISAState), + VMSTATE_END_OF_LIST() + } +}; + +static const TypeInfo via_isa_info = { + .name = TYPE_VIA_ISA, + .parent = TYPE_PCI_DEVICE, + .instance_size = sizeof(ViaISAState), + .abstract = true, + .interfaces = (InterfaceInfo[]) { + { INTERFACE_CONVENTIONAL_PCI_DEVICE }, + { }, + }, +}; + static void via_isa_request_i8259_irq(void *opaque, int irq, int level) { - VT82C686BISAState *s = opaque; + ViaISAState *s = opaque; qemu_set_irq(s->cpu_intr, level); } +/* TYPE_VT82C686B_ISA */ + static void vt82c686b_write_config(PCIDevice *d, uint32_t addr, uint32_t val, int len) { - VT82C686BISAState *s = VT82C686B_ISA(d); + ViaISAState *s = VIA_ISA(d); trace_via_isa_write(addr, val, len); pci_default_write_config(d, addr, val, len); @@ -561,19 +585,9 @@ static void vt82c686b_write_config(PCIDevice *d, uint32_t addr, } } -static const VMStateDescription vmstate_via = { - .name = "vt82c686b", - .version_id = 1, - .minimum_version_id = 1, - .fields = (VMStateField[]) { - VMSTATE_PCI_DEVICE(dev, VT82C686BISAState), - VMSTATE_END_OF_LIST() - } -}; - static void vt82c686b_isa_reset(DeviceState *dev) { - VT82C686BISAState *s = VT82C686B_ISA(dev); + ViaISAState *s = VIA_ISA(dev); uint8_t *pci_conf = s->dev.config; pci_set_long(pci_conf + PCI_CAPABILITY_LIST, 0x000000c0); @@ -593,7 +607,7 @@ static void vt82c686b_isa_reset(DeviceState *dev) static void vt82c686b_realize(PCIDevice *d, Error **errp) { - VT82C686BISAState *s = VT82C686B_ISA(d); + ViaISAState *s = VIA_ISA(d); DeviceState *dev = DEVICE(d); ISABus *isa_bus; qemu_irq *isa_irq; @@ -617,7 +631,7 @@ static void vt82c686b_realize(PCIDevice *d, Error **errp) } } -static void via_class_init(ObjectClass *klass, void *data) +static void vt82c686b_class_init(ObjectClass *klass, void *data) { DeviceClass *dc = DEVICE_CLASS(klass); PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); @@ -625,28 +639,21 @@ static void via_class_init(ObjectClass *klass, void *data) k->realize = vt82c686b_realize; k->config_write = vt82c686b_write_config; k->vendor_id = PCI_VENDOR_ID_VIA; - k->device_id = PCI_DEVICE_ID_VIA_ISA_BRIDGE; + k->device_id = PCI_DEVICE_ID_VIA_82C686B_ISA; k->class_id = PCI_CLASS_BRIDGE_ISA; k->revision = 0x40; dc->reset = vt82c686b_isa_reset; dc->desc = "ISA bridge"; dc->vmsd = &vmstate_via; - /* - * Reason: part of VIA VT82C686 southbridge, needs to be wired up, - * e.g. by mips_fuloong2e_init() - */ + /* Reason: part of VIA VT82C686 southbridge, needs to be wired up */ dc->user_creatable = false; } -static const TypeInfo via_info = { +static const TypeInfo vt82c686b_isa_info = { .name = TYPE_VT82C686B_ISA, - .parent = TYPE_PCI_DEVICE, - .instance_size = sizeof(VT82C686BISAState), - .class_init = via_class_init, - .interfaces = (InterfaceInfo[]) { - { INTERFACE_CONVENTIONAL_PCI_DEVICE }, - { }, - }, + .parent = TYPE_VIA_ISA, + .instance_size = sizeof(ViaISAState), + .class_init = vt82c686b_class_init, }; @@ -658,7 +665,8 @@ static void vt82c686b_register_types(void) type_register_static(&via_superio_info); type_register_static(&vt82c686b_superio_info); type_register_static(&vt8231_superio_info); - type_register_static(&via_info); + type_register_static(&via_isa_info); + type_register_static(&vt82c686b_isa_info); } type_init(vt82c686b_register_types) diff --git a/include/hw/pci/pci_ids.h b/include/hw/pci/pci_ids.h index ea28dcc850..aa3f67eaa4 100644 --- a/include/hw/pci/pci_ids.h +++ b/include/hw/pci/pci_ids.h @@ -204,7 +204,7 @@ #define PCI_VENDOR_ID_XILINX 0x10ee #define PCI_VENDOR_ID_VIA 0x1106 -#define PCI_DEVICE_ID_VIA_ISA_BRIDGE 0x0686 +#define PCI_DEVICE_ID_VIA_82C686B_ISA 0x0686 #define PCI_DEVICE_ID_VIA_IDE 0x0571 #define PCI_DEVICE_ID_VIA_UHCI 0x3038 #define PCI_DEVICE_ID_VIA_82C686B_PM 0x3057