resPtr
xf86PciBusAccWindowsFromOS(void)
{
pciConfigPtr *ppPCI, pPCI;
resPtr pRes = NULL;
resRange range;
unsigned long io_size, mem_size;
int domain;
if ((ppPCI = xf86scanpci(0))) {
for (; (pPCI = *ppPCI); ppPCI++) {
if ((pPCI->pci_base_class != PCI_CLASS_BRIDGE) ||
(pPCI->pci_sub_class != PCI_SUBCLASS_BRIDGE_HOST))
continue;
domain = xf86GetPciDomain(pPCI->tag);
linuxGetSizes(pPCI->tag, &io_size, &mem_size);
RANGE(range, 0, (ADDRESS)(mem_size - 1),
RANGE_TYPE(ResExcMemBlock, domain));
pRes = xf86AddResToList(pRes, &range, -1);
RANGE(range, 0, (IOADDRESS)(io_size - 1),
RANGE_TYPE(ResExcIoBlock, domain));
pRes = xf86AddResToList(pRes, &range, -1);
if (domain <= 0)
break;
}
}
return pRes;
}
/* Retrieves a list of the resources routed to a host bridge's secondary bus */
static void
Get460GXBridgeResources(int bus,
pointer *ppIoRes,
pointer *ppMemRes,
pointer *ppPmemRes)
{
pciConfigPtr pPCI = Verify460GXBus(bus);
resRange range;
unsigned int i, j;
if (ppIoRes) {
xf86FreeResList(*ppIoRes);
*ppIoRes = NULL;
if (pPCI) {
for (i = 0; i <= 0x0F; i++) {
if (iomap_460gx[i] != pPCI->devnum)
continue;
RANGE(range, i << 12, ((i + 1) << 12) - 1,
RANGE_TYPE(ResExcIoBlock, 0));
*ppIoRes = xf86AddResToList(*ppIoRes, &range, -1);
}
}
}
if (ppMemRes) {
xf86FreeResList(*ppMemRes);
*ppMemRes = NULL;
if (pPCI) {
if (!(i = (pPCI->devnum - 0x10)))
j = 127; /* (4GB - 32M) / 32M */
else
j = pcis_460gx[i - 1] & 0x7F;
i = pcis_460gx[i] & 0x7F;
if (i < j) {
RANGE(range, i << 25, (j << 25) - 1,
RANGE_TYPE(ResExcMemBlock, 0));
*ppMemRes = xf86AddResToList(*ppMemRes, &range, -1);
}
}
}
if (ppPmemRes) {
xf86FreeResList(*ppPmemRes);
*ppPmemRes = NULL;
}
}
resPtr
xf86AccResFromOS(resPtr pRes)
{
pciConfigPtr *ppPCI, pPCI;
resRange range;
unsigned long io_size, mem_size;
int domain;
if ((ppPCI = xf86scanpci(0))) {
for (; (pPCI = *ppPCI); ppPCI++) {
if ((pPCI->pci_base_class != PCI_CLASS_BRIDGE) ||
(pPCI->pci_sub_class != PCI_SUBCLASS_BRIDGE_HOST))
continue;
domain = xf86GetPciDomain(pPCI->tag);
linuxGetSizes(pPCI->tag, &io_size, &mem_size);
/*
* At minimum, the top and bottom resources must be claimed, so
* that resources that are (or appear to be) unallocated can be
* relocated.
*/
RANGE(range, 0x00000000u, 0x0009ffffu,
RANGE_TYPE(ResExcMemBlock, domain));
pRes = xf86AddResToList(pRes, &range, -1);
RANGE(range, 0x000c0000u, 0x000effffu,
RANGE_TYPE(ResExcMemBlock, domain));
pRes = xf86AddResToList(pRes, &range, -1);
RANGE(range, 0x000f0000u, 0x000fffffu,
RANGE_TYPE(ResExcMemBlock, domain));
pRes = xf86AddResToList(pRes, &range, -1);
RANGE(range, (ADDRESS)(mem_size - 1), (ADDRESS)(mem_size - 1),
RANGE_TYPE(ResExcMemBlock, domain));
pRes = xf86AddResToList(pRes, &range, -1);
RANGE(range, 0x00000000u, 0x00000000u,
RANGE_TYPE(ResExcIoBlock, domain));
pRes = xf86AddResToList(pRes, &range, -1);
RANGE(range, (IOADDRESS)(io_size - 1), (IOADDRESS)(io_size - 1),
RANGE_TYPE(ResExcIoBlock, domain));
pRes = xf86AddResToList(pRes, &range, -1);
if (domain <= 0)
break;
}
}
return pRes;
}
