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hw/versatile_pci: Expose multiple sysbus mmio regions

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Clean up versatile_pci to expose the various PCI mmio regions
properly as separate mmio regions rather than as a single mmio
which uses callbacks to map and unmap everything.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Peter Maydell 2011-09-01 18:36:53 +01:00 • committed by Avi Kivity
parent dd236a50aa
commit 7d6e771f49
3 changed files with 28 additions and 38 deletions
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42
hw/versatile_pci.c
View file

@ -58,38 +58,6 @@ static void pci_vpb_set_irq(void *opaque, int irq_num, int level)
qemu_set_irq(pic[irq_num], level);
}
static void pci_vpb_map(SysBusDevice *dev, target_phys_addr_t base)
{
PCIVPBState *s = (PCIVPBState *)dev;
/* Selfconfig area. */
memory_region_add_subregion(get_system_memory(), base + 0x01000000,
&s->mem_config);
/* Normal config area. */
memory_region_add_subregion(get_system_memory(), base + 0x02000000,
&s->mem_config2);
if (s->realview) {
/* IO memory area. */
memory_region_add_subregion(get_system_memory(), base + 0x03000000,
&s->isa);
}
}
static void pci_vpb_unmap(SysBusDevice *dev, target_phys_addr_t base)
{
PCIVPBState *s = (PCIVPBState *)dev;
/* Selfconfig area. */
memory_region_del_subregion(get_system_memory(), &s->mem_config);
/* Normal config area. */
memory_region_del_subregion(get_system_memory(), &s->mem_config2);
if (s->realview) {
/* IO memory area. */
memory_region_del_subregion(get_system_memory(), &s->isa);
}
}
static int pci_vpb_init(SysBusDevice *dev)
{
PCIVPBState *s = FROM_SYSBUS(PCIVPBState, dev);
@ -106,16 +74,22 @@ static int pci_vpb_init(SysBusDevice *dev)
/* ??? Register memory space. */
/* Our memory regions are:
* 0 : PCI self config window
* 1 : PCI config window
* 2 : PCI IO window (realview_pci only)
*/
memory_region_init_io(&s->mem_config, &pci_vpb_config_ops, bus,
"pci-vpb-selfconfig", 0x1000000);
sysbus_init_mmio_region(dev, &s->mem_config);
memory_region_init_io(&s->mem_config2, &pci_vpb_config_ops, bus,
"pci-vpb-config", 0x1000000);
sysbus_init_mmio_region(dev, &s->mem_config2);
if (s->realview) {
isa_mmio_setup(&s->isa, 0x0100000);
sysbus_init_mmio_region(dev, &s->isa);
}
sysbus_init_mmio_cb2(dev, pci_vpb_map, pci_vpb_unmap);
pci_create_simple(bus, -1, "versatile_pci_host");
return 0;
}