*/
#include <linux/init.h>
#include <linux/pci.h>
+#include <linux/string.h>
+
#include <asm/pci-bridge.h>
#include <asm/semaphore.h>
#include <asm/rtas.h>
#include <asm/vio.h>
+
#include "../pci.h"
#include "rpaphp.h"
#include "rpadlpar.h"
return NULL;
}
-static void rpadlpar_claim_one_bus(struct pci_bus *b)
-{
- struct list_head *ld;
- struct pci_bus *child_bus;
-
- for (ld = b->devices.next; ld != &b->devices; ld = ld->next) {
- struct pci_dev *dev = pci_dev_b(ld);
- int i;
-
- for (i = 0; i < PCI_NUM_RESOURCES; i++) {
- struct resource *r = &dev->resource[i];
-
- if (r->parent || !r->start || !r->flags)
- continue;
- rpaphp_claim_resource(dev, i);
- }
- }
-
- list_for_each_entry(child_bus, &b->children, node)
- rpadlpar_claim_one_bus(child_bus);
-}
-
-static int pci_add_secondary_bus(struct device_node *dn,
- struct pci_dev *bridge_dev)
-{
- struct pci_controller *hose = dn->phb;
- struct pci_bus *child;
- u8 sec_busno;
-
- /* Get busno of downstream bus */
- pci_read_config_byte(bridge_dev, PCI_SECONDARY_BUS, &sec_busno);
-
- /* Allocate and add to children of bridge_dev->bus */
- child = pci_add_new_bus(bridge_dev->bus, bridge_dev, sec_busno);
- if (!child) {
- printk(KERN_ERR "%s: could not add secondary bus\n", __FUNCTION__);
- return -ENOMEM;
- }
-
- sprintf(child->name, "PCI Bus #%02x", child->number);
-
- /* Fixup subordinate bridge bases and resources */
- pcibios_fixup_bus(child);
-
- /* Claim new bus resources */
- rpadlpar_claim_one_bus(bridge_dev->bus);
-
- if (hose->last_busno < child->number)
- hose->last_busno = child->number;
-
- dn->bussubno = child->number;
-
- /* ioremap() for child bus, which may or may not succeed */
- remap_bus_range(child);
-
- return 0;
-}
-
static struct pci_dev *dlpar_find_new_dev(struct pci_bus *parent,
struct device_node *dev_dn)
{
static struct pci_dev *dlpar_pci_add_bus(struct device_node *dn)
{
- struct pci_controller *hose = dn->phb;
+ struct pci_dn *pdn = dn->data;
+ struct pci_controller *phb = pdn->phb;
struct pci_dev *dev = NULL;
- /* Scan phb bus for EADS device, adding new one to bus->devices */
- if (!pci_scan_single_device(hose->bus, dn->devfn)) {
- printk(KERN_ERR "%s: found no device on bus\n", __FUNCTION__);
+ eeh_add_device_tree_early(dn);
+
+ /* Add EADS device to PHB bus, adding new entry to bus->devices */
+ dev = of_create_pci_dev(dn, phb->bus, pdn->devfn);
+ if (!dev) {
+ printk(KERN_ERR "%s: failed to create pci dev for %s\n",
+ __FUNCTION__, dn->full_name);
return NULL;
}
+ if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE ||
+ dev->hdr_type == PCI_HEADER_TYPE_CARDBUS)
+ of_scan_pci_bridge(dn, dev);
+
+ rpaphp_init_new_devs(dev->subordinate);
+
+ /* Claim new bus resources */
+ pcibios_claim_one_bus(dev->bus);
+
+ /* ioremap() for child bus, which may or may not succeed */
+ (void) remap_bus_range(dev->bus);
+
/* Add new devices to global lists. Register in proc, sysfs. */
- pci_bus_add_devices(hose->bus);
+ pci_bus_add_devices(phb->bus);
/* Confirm new bridge dev was created */
- dev = dlpar_find_new_dev(hose->bus, dn);
+ dev = dlpar_find_new_dev(phb->bus, dn);
if (dev) {
if (dev->hdr_type != PCI_HEADER_TYPE_BRIDGE) {
printk(KERN_ERR "%s: unexpected header type %d\n",
__FUNCTION__, dev->hdr_type);
return NULL;
}
-
- if (pci_add_secondary_bus(dn, dev))
- return NULL;
}
return dev;
static int dlpar_add_pci_slot(char *drc_name, struct device_node *dn)
{
struct pci_dev *dev;
- int rc;
if (rpaphp_find_pci_bus(dn))
return -EINVAL;
return -EIO;
}
- if (dn->child) {
- rc = rpaphp_config_pci_adapter(dev->subordinate);
- if (rc < 0) {
- printk(KERN_ERR "%s: unable to enable slot %s\n",
- __FUNCTION__, drc_name);
- return -EIO;
- }
- }
-
/* Add hotplug slot */
if (rpaphp_add_slot(dn)) {
printk(KERN_ERR "%s: unable to add hotplug slot %s\n",
static int dlpar_remove_phb(char *drc_name, struct device_node *dn)
{
struct slot *slot;
+ struct pci_dn *pdn;
int rc = 0;
if (!rpaphp_find_pci_bus(dn))
}
}
- BUG_ON(!dn->phb);
- rc = dlpar_remove_root_bus(dn->phb);
+ pdn = dn->data;
+ BUG_ON(!pdn || !pdn->phb);
+ rc = dlpar_remove_root_bus(pdn->phb);
if (rc < 0)
return rc;
- dn->phb = NULL;
+ pdn->phb = NULL;
return 0;
}
{
struct pci_controller *phb;
- if (dn->phb) {
+ if (PCI_DN(dn) && PCI_DN(dn)->phb) {
/* PHB already exists */
return -EINVAL;
}
__FUNCTION__, drc_name);
return -EIO;
}
+ } else {
+ rpaphp_unconfig_pci_adapter(bus);
}
if (unmap_bus_range(bus)) {
projects / linux-2.6-omap-h63xx.git / blobdiff