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sun4u: remove pci_ebus_init() function

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This is initialisation that should really take place in the ebus realize
function. As part of this we also rework the ebus IRQ mapping so that
instead of having to pass in the array of pbm_irqs, we obtain a reference
to them by looking up the APB device during ebus realize.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Artyom Tarasenko <atar4qemu@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
This commit is contained in:
Mark Cave-Ayland 2017-12-21 07:32:57 +00:00
parent 8c40b8d9fb
commit c796eddaad
3 changed files with 16 additions and 20 deletions
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29
hw/sparc64/sun4u.c
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@ -230,21 +230,11 @@ static void isa_irq_handler(void *opaque, int n, int level)
}
/* EBUS (Eight bit bus) bridge */
static ISABus *
pci_ebus_init(PCIDevice *pci_dev, qemu_irq *irqs)
{
qemu_irq *isa_irq;
ISABus *isa_bus;
isa_bus = ISA_BUS(qdev_get_child_bus(DEVICE(pci_dev), "isa.0"));
isa_irq = qemu_allocate_irqs(isa_irq_handler, irqs, 16);
isa_bus_irqs(isa_bus, isa_irq);
return isa_bus;
}
static void ebus_realize(PCIDevice *pci_dev, Error **errp)
{
EbusState *s = EBUS(pci_dev);
APBState *apb;
qemu_irq *isa_irq;
s->isa_bus = isa_bus_new(DEVICE(pci_dev), get_system_memory(),
pci_address_space_io(pci_dev), errp);
@ -253,6 +243,15 @@ static void ebus_realize(PCIDevice *pci_dev, Error **errp)
return;
}
apb = APB_DEVICE(object_resolve_path_type("", TYPE_APB, NULL));
if (!apb) {
error_setg(errp, "unable to locate APB PCI host bridge");
return;
}
isa_irq = qemu_allocate_irqs(isa_irq_handler, apb->pbm_irqs, 16);
isa_bus_irqs(s->isa_bus, isa_irq);
pci_dev->config[0x04] = 0x06; // command = bus master, pci mem
pci_dev->config[0x05] = 0x00;
pci_dev->config[0x06] = 0xa0; // status = fast back-to-back, 66MHz, no error
@ -443,7 +442,7 @@ static void sun4uv_init(MemoryRegion *address_space_mem,
PCIDevice *ebus, *pci_dev;
ISABus *isa_bus;
SysBusDevice *s;
qemu_irq *ivec_irqs, *pbm_irqs;
qemu_irq *ivec_irqs;
DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
DriveInfo *fd[MAX_FD];
DeviceState *dev;
@ -462,7 +461,7 @@ static void sun4uv_init(MemoryRegion *address_space_mem,
ivec_irqs = qemu_allocate_irqs(sparc64_cpu_set_ivec_irq, cpu, IVEC_MAX);
pci_bus = pci_apb_init(APB_SPECIAL_BASE, APB_MEM_BASE, ivec_irqs, &pci_busA,
&pci_busB, &pbm_irqs);
&pci_busB);
/* Only in-built Simba PBMs can exist on the root bus, slot 0 on busA is
reserved (leaving no slots free after on-board devices) however slots
@ -474,7 +473,7 @@ static void sun4uv_init(MemoryRegion *address_space_mem,
ebus = pci_create_multifunction(pci_busA, PCI_DEVFN(1, 0), true, TYPE_EBUS);
qdev_init_nofail(DEVICE(ebus));
isa_bus = pci_ebus_init(ebus, pbm_irqs);
isa_bus = EBUS(ebus)->isa_bus;
i = 0;
if (hwdef->console_serial_base) {