/* Same as traverse_pci_devices except this does it for all phbs.
*/
void *traverse_all_pci_devices(traverse_func pre)
{
struct pci_controller* phb;
void *ret;
for (phb=hose_head;phb;phb=phb->next)
if ((ret = traverse_pci_devices((struct device_node *)phb->arch_data, pre, NULL, phb)) != NULL)
return ret;
return NULL;
}
/*
* Same as traverse_pci_devices except this does it for all phbs.
*/
static void *traverse_all_pci_devices(traverse_func pre)
{
struct pci_controller *phb, *tmp;
void *ret;
list_for_each_entry_safe(phb, tmp, &hose_list, list_node)
if ((ret = traverse_pci_devices(phb->arch_data, pre, phb))
!= NULL)
return ret;
return NULL;
}
/**
* eeh_dev_phb_init_dynamic - Create EEH devices for devices included in PHB
* @phb: PHB
*
* Scan the PHB OF node and its child association, then create the
* EEH devices accordingly
*/
void eeh_dev_phb_init_dynamic(struct pci_controller *phb)
{
struct device_node *dn = phb->dn;
/* EEH PE for PHB */
eeh_phb_pe_create(phb);
/* EEH device for PHB */
eeh_dev_init(dn, phb);
/* EEH devices for children OF nodes */
traverse_pci_devices(dn, eeh_dev_init, phb);
}
/* This is the "slow" path for looking up a device_node from a
* pci_dev. It will hunt for the device under its parent's
* phb and then update sysdata for a future fastpath.
*
* It may also do fixups on the actual device since this happens
* on the first read/write.
*
* Note that it also must deal with devices that don't exist.
* In this case it may probe for real hardware ("just in case")
* and add a device_node to the device tree if necessary.
*
*/
struct device_node *fetch_dev_dn(struct pci_dev *dev)
{
struct device_node *orig_dn = (struct device_node *)dev->sysdata;
struct pci_controller *phb = orig_dn->phb; /* assume same phb as orig_dn */
struct device_node *phb_dn;
struct device_node *dn;
unsigned long searchval = (dev->bus->number << 8) | dev->devfn;
phb_dn = (struct device_node *)(phb->arch_data);
dn = (struct device_node *)traverse_pci_devices(phb_dn, is_devfn_node, NULL, (void *)searchval);
if (dn) {
dev->sysdata = dn;
/* ToDo: call some device init hook here */
}
return dn;
}
void __devinit pci_devs_phb_init_dynamic(struct pci_controller *phb)
{
/* Update dn->phb ptrs for new phb and children devices */
traverse_pci_devices((struct device_node *)phb->arch_data,
update_dn_pci_info, phb);
}
