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pci: move pci host stuff from pci.c to pci_host.c

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Move pci host stuff from pci.c to pci_host.c.
And add some comments.
Later pcie host bridge functions will be defined in pcie_host.c
not to bloat pci.c.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Isaku Yamahata 2009-10-30 21:21:15 +09:00 • committed by Anthony Liguori
parent 74e32ac1d1
commit 766347cc8c
2 changed files with 63 additions and 67 deletions
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67
hw/pci.c
View file

@ -663,73 +663,6 @@ void pci_default_write_config(PCIDevice *d, uint32_t addr, uint32_t val, int l)
pci_update_mappings(d);
}
static inline PCIDevice *pci_addr_to_dev(PCIBus *bus, uint32_t addr)
{
uint8_t bus_num = (addr >> 16) & 0xff;
uint8_t devfn = (addr >> 8) & 0xff;
return pci_find_device(bus, bus_num, PCI_SLOT(devfn), PCI_FUNC(devfn));
}
static inline int pci_addr_to_config(uint32_t addr)
{
return addr & (PCI_CONFIG_SPACE_SIZE - 1);
}
void pci_data_write(void *opaque, uint32_t addr, uint32_t val, int len)
{
PCIBus *s = opaque;
PCIDevice *pci_dev;
int config_addr;
#if 0
PCI_DPRINTF("pci_data_write: addr=%08x val=%08x len=%d\n",
addr, val, len);
#endif
pci_dev = pci_addr_to_dev(s, addr);
if (!pci_dev)
return;
config_addr = addr & 0xff;
config_addr = pci_addr_to_config(addr);
PCI_DPRINTF("pci_config_write: %s: addr=%02x val=%08x len=%d\n",
pci_dev->name, config_addr, val, len);
pci_dev->config_write(pci_dev, config_addr, val, len);
}
uint32_t pci_data_read(void *opaque, uint32_t addr, int len)
{
PCIBus *s = opaque;
PCIDevice *pci_dev;
int config_addr;
uint32_t val;
pci_dev = pci_addr_to_dev(s, addr);
if (!pci_dev) {
switch(len) {
case 1:
val = 0xff;
break;
case 2:
val = 0xffff;
break;
default:
case 4:
val = 0xffffffff;
break;
}
goto the_end;
}
config_addr = pci_addr_to_config(addr);
val = pci_dev->config_read(pci_dev, config_addr, len);
PCI_DPRINTF("pci_config_read: %s: addr=%02x val=%08x len=%d\n",
pci_dev->name, config_addr, val, len);
the_end:
#if 0
PCI_DPRINTF("pci_data_read: addr=%08x val=%08x len=%d\n",
addr, val, len);
#endif
return val;
}
/***********************************************************/
/* generic PCI irq support */