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pci-bridge: Turn PCIBridge into abstract QOM type

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Introduce TYPE_PCI_BRIDGE as base type and use PCI_BRIDGE() casts.

Reviewed-by: Don Koch <dkoch@verizon.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
[AF: Updated pbm-bridge parent to TYPE_PCI_BRIDGE]
Signed-off-by: Andreas Färber <afaerber@suse.de>
This commit is contained in:
Andreas Färber 2013-07-11 17:13:43 +02:00
parent 45c0a675f9
commit f055e96bd4
11 changed files with 78 additions and 55 deletions
Download patch file Download diff file Expand all files Collapse all files

40
hw/pci/pci_bridge.c
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@ -141,8 +141,9 @@ static void pci_bridge_init_alias(PCIBridge *bridge, MemoryRegion *alias,
MemoryRegion *parent_space,
bool enabled)
{
pcibus_t base = pci_bridge_get_base(&bridge->dev, type);
pcibus_t limit = pci_bridge_get_limit(&bridge->dev, type);
PCIDevice *bridge_dev = PCI_DEVICE(bridge);
pcibus_t base = pci_bridge_get_base(bridge_dev, type);
pcibus_t limit = pci_bridge_get_limit(bridge_dev, type);
/* TODO: this doesn't handle base = 0 limit = 2^64 - 1 correctly.
* Apparently no way to do this with existing memory APIs. */
pcibus_t size = enabled && limit >= base ? limit + 1 - base : 0;
@ -154,7 +155,8 @@ static void pci_bridge_init_alias(PCIBridge *bridge, MemoryRegion *alias,
static void pci_bridge_init_vga_aliases(PCIBridge *br, PCIBus *parent,
MemoryRegion *alias_vga)
{
uint16_t brctl = pci_get_word(br->dev.config + PCI_BRIDGE_CONTROL);
PCIDevice *pd = PCI_DEVICE(br);
uint16_t brctl = pci_get_word(pd->config + PCI_BRIDGE_CONTROL);
memory_region_init_alias(&alias_vga[QEMU_PCI_VGA_IO_LO], OBJECT(br),
"pci_bridge_vga_io_lo", &br->address_space_io,
@ -167,7 +169,7 @@ static void pci_bridge_init_vga_aliases(PCIBridge *br, PCIBus *parent,
QEMU_PCI_VGA_MEM_BASE, QEMU_PCI_VGA_MEM_SIZE);
if (brctl & PCI_BRIDGE_CTL_VGA) {
pci_register_vga(&br->dev, &alias_vga[QEMU_PCI_VGA_MEM],
pci_register_vga(pd, &alias_vga[QEMU_PCI_VGA_MEM],
&alias_vga[QEMU_PCI_VGA_IO_LO],
&alias_vga[QEMU_PCI_VGA_IO_HI]);
}
@ -175,9 +177,10 @@ static void pci_bridge_init_vga_aliases(PCIBridge *br, PCIBus *parent,
static PCIBridgeWindows *pci_bridge_region_init(PCIBridge *br)
{
PCIBus *parent = br->dev.bus;
PCIDevice *pd = PCI_DEVICE(br);
PCIBus *parent = pd->bus;
PCIBridgeWindows *w = g_new(PCIBridgeWindows, 1);
uint16_t cmd = pci_get_word(br->dev.config + PCI_COMMAND);
uint16_t cmd = pci_get_word(pd->config + PCI_COMMAND);
pci_bridge_init_alias(br, &w->alias_pref_mem,
PCI_BASE_ADDRESS_MEM_PREFETCH,
@ -205,12 +208,13 @@ static PCIBridgeWindows *pci_bridge_region_init(PCIBridge *br)
static void pci_bridge_region_del(PCIBridge *br, PCIBridgeWindows *w)
{
PCIBus *parent = br->dev.bus;
PCIDevice *pd = PCI_DEVICE(br);
PCIBus *parent = pd->bus;
memory_region_del_subregion(parent->address_space_io, &w->alias_io);
memory_region_del_subregion(parent->address_space_mem, &w->alias_mem);
memory_region_del_subregion(parent->address_space_mem, &w->alias_pref_mem);
pci_unregister_vga(&br->dev);
pci_unregister_vga(pd);
}
static void pci_bridge_region_cleanup(PCIBridge *br, PCIBridgeWindows *w)
@ -241,7 +245,7 @@ void pci_bridge_update_mappings(PCIBridge *br)
void pci_bridge_write_config(PCIDevice *d,
uint32_t address, uint32_t val, int len)
{
PCIBridge *s = container_of(d, PCIBridge, dev);
PCIBridge *s = PCI_BRIDGE(d);
uint16_t oldctl = pci_get_word(d->config + PCI_BRIDGE_CONTROL);
uint16_t newctl;
@ -331,7 +335,7 @@ void pci_bridge_reset(DeviceState *qdev)
int pci_bridge_initfn(PCIDevice *dev, const char *typename)
{
PCIBus *parent = dev->bus;
PCIBridge *br = DO_UPCAST(PCIBridge, dev, dev);
PCIBridge *br = PCI_BRIDGE(dev);
PCIBus *sec_bus = &br->sec_bus;
pci_word_test_and_set_mask(dev->config + PCI_STATUS,
@ -379,7 +383,7 @@ int pci_bridge_initfn(PCIDevice *dev, const char *typename)
/* default qdev clean up function for PCI-to-PCI bridge */
void pci_bridge_exitfn(PCIDevice *pci_dev)
{
PCIBridge *s = DO_UPCAST(PCIBridge, dev, pci_dev);
PCIBridge *s = PCI_BRIDGE(pci_dev);
assert(QLIST_EMPTY(&s->sec_bus.child));
QLIST_REMOVE(&s->sec_bus, sibling);
pci_bridge_region_del(s, s->windows);
@ -400,3 +404,17 @@ void pci_bridge_map_irq(PCIBridge *br, const char* bus_name,
br->map_irq = map_irq;
br->bus_name = bus_name;
}
static const TypeInfo pci_bridge_type_info = {
.name = TYPE_PCI_BRIDGE,
.parent = TYPE_PCI_DEVICE,
.instance_size = sizeof(PCIBridge),
.abstract = true,
};
static void pci_bridge_register_types(void)
{
type_register_static(&pci_bridge_type_info);
}
type_init(pci_bridge_register_types)