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sun4u: remove pci_ebus_init() function 

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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
hw/pci-host/apb.c
View File

@ -614,8 +614,7 @@ static void apb_pci_bridge_realize(PCIDevice *dev, Error **errp)
PCIBus *pci_apb_init(hwaddr special_base,
hwaddr mem_base,
qemu_irq *ivec_irqs, PCIBus **busA, PCIBus **busB,
qemu_irq **pbm_irqs)
qemu_irq *ivec_irqs, PCIBus **busA, PCIBus **busB)
{
DeviceState *dev;
SysBusDevice *s;
@ -646,7 +645,6 @@ PCIBus *pci_apb_init(hwaddr special_base,
memory_region_init(&d->pci_mmio, OBJECT(s), "pci-mmio", 0x100000000ULL);
memory_region_add_subregion(get_system_memory(), mem_base, &d->pci_mmio);
*pbm_irqs = d->pbm_irqs;
d->ivec_irqs = ivec_irqs;
pci_create_simple(phb->bus, 0, "pbm-pci");

29
hw/sparc64/sun4u.c
View File

@ -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) {

3
include/hw/pci-host/apb.h
View File

@ -91,6 +91,5 @@ typedef struct PBMPCIBridge {
PCIBus *pci_apb_init(hwaddr special_base,
hwaddr mem_base,
qemu_irq *ivec_irqs, PCIBus **bus2, PCIBus **bus3,
qemu_irq **pbm_irqs);
qemu_irq *ivec_irqs, PCIBus **bus2, PCIBus **bus3);
#endif