static int
thunder_pem_get_id(device_t pci, device_t child, enum pci_id_type type,
uintptr_t *id)
{
int bsf;
int pem;
if (type != PCI_ID_MSI)
return (pcib_get_id(pci, child, type, id));
bsf = pci_get_rid(child);
/* PEM (PCIe MAC/root complex) number is equal to domain */
pem = pci_get_domain(child);
/*
* Set appropriate device ID (passed by the HW along with
* the transaction to memory) for different root complex
* numbers using hard-coded domain portion for each group.
*/
if (pem < 3)
*id = (0x1 << PCI_RID_DOMAIN_SHIFT) | bsf;
else if (pem < 6)
*id = (0x3 << PCI_RID_DOMAIN_SHIFT) | bsf;
else if (pem < 9)
*id = (0x9 << PCI_RID_DOMAIN_SHIFT) | bsf;
else if (pem < 12)
*id = (0xB << PCI_RID_DOMAIN_SHIFT) | bsf;
else
return (ENXIO);
return (0);
}
static int
thunder_pem_fdt_get_id(device_t dev, device_t child, enum pci_id_type type,
uintptr_t *id)
{
phandle_t node;
uint32_t rid;
uint16_t pci_rid;
if (type != PCI_ID_MSI)
return (pcib_get_id(dev, child, type, id));
node = ofw_bus_get_node(dev);
pci_rid = pci_get_rid(child);
ofw_bus_msimap(node, pci_rid, NULL, &rid);
*id = rid;
return (0);
}
