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authorLen Brown <len.brown@intel.com>2005-12-06 17:31:30 -0500
committerLen Brown <len.brown@intel.com>2005-12-06 17:31:30 -0500
commit3d5271f9883cba7b54762bc4fe027d4172f06db7 (patch)
treeab8a881a14478598a0c8bda0d26c62cdccfffd6d /drivers/pci/hotplug/rpaphp_pci.c
parent378b2556f4e09fa6f87ff0cb5c4395ff28257d02 (diff)
parent9115a6c787596e687df03010d97fccc5e0762506 (diff)
Pull release into acpica branch
Diffstat (limited to 'drivers/pci/hotplug/rpaphp_pci.c')
-rw-r--r--drivers/pci/hotplug/rpaphp_pci.c91
1 files changed, 62 insertions, 29 deletions
diff --git a/drivers/pci/hotplug/rpaphp_pci.c b/drivers/pci/hotplug/rpaphp_pci.c
index 49e4d10a648..4b35097b3d9 100644
--- a/drivers/pci/hotplug/rpaphp_pci.c
+++ b/drivers/pci/hotplug/rpaphp_pci.c
@@ -23,11 +23,13 @@
*
*/
#include <linux/pci.h>
+#include <linux/string.h>
+
#include <asm/pci-bridge.h>
#include <asm/rtas.h>
#include <asm/machdep.h>
-#include "../pci.h" /* for pci_add_new_bus */
+#include "../pci.h" /* for pci_add_new_bus */
#include "rpaphp.h"
static struct pci_bus *find_bus_among_children(struct pci_bus *bus,
@@ -152,8 +154,7 @@ exit:
}
/* Must be called before pci_bus_add_devices */
-static void
-rpaphp_fixup_new_pci_devices(struct pci_bus *bus, int fix_bus)
+void rpaphp_fixup_new_pci_devices(struct pci_bus *bus, int fix_bus)
{
struct pci_dev *dev;
@@ -182,6 +183,20 @@ rpaphp_fixup_new_pci_devices(struct pci_bus *bus, int fix_bus)
}
}
+static void rpaphp_eeh_add_bus_device(struct pci_bus *bus)
+{
+ struct pci_dev *dev;
+
+ list_for_each_entry(dev, &bus->devices, bus_list) {
+ eeh_add_device_late(dev);
+ if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) {
+ struct pci_bus *subbus = dev->subordinate;
+ if (subbus)
+ rpaphp_eeh_add_bus_device (subbus);
+ }
+ }
+}
+
static int rpaphp_pci_config_bridge(struct pci_dev *dev)
{
u8 sec_busno;
@@ -215,6 +230,13 @@ static int rpaphp_pci_config_bridge(struct pci_dev *dev)
return 0;
}
+void rpaphp_init_new_devs(struct pci_bus *bus)
+{
+ rpaphp_fixup_new_pci_devices(bus, 0);
+ rpaphp_eeh_add_bus_device(bus);
+}
+EXPORT_SYMBOL_GPL(rpaphp_init_new_devs);
+
/*****************************************************************************
rpaphp_pci_config_slot() will configure all devices under the
given slot->dn and return the the first pci_dev.
@@ -231,36 +253,51 @@ rpaphp_pci_config_slot(struct pci_bus *bus)
if (!dn || !dn->child)
return NULL;
- slotno = PCI_SLOT(PCI_DN(dn->child)->devfn);
+ if (_machine == PLATFORM_PSERIES_LPAR) {
+ of_scan_bus(dn, bus);
+ if (list_empty(&bus->devices)) {
+ err("%s: No new device found\n", __FUNCTION__);
+ return NULL;
+ }
- /* pci_scan_slot should find all children */
- num = pci_scan_slot(bus, PCI_DEVFN(slotno, 0));
- if (num) {
- rpaphp_fixup_new_pci_devices(bus, 1);
+ rpaphp_init_new_devs(bus);
pci_bus_add_devices(bus);
- }
- if (list_empty(&bus->devices)) {
- err("%s: No new device found\n", __FUNCTION__);
- return NULL;
- }
- list_for_each_entry(dev, &bus->devices, bus_list) {
- if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE)
- rpaphp_pci_config_bridge(dev);
+ dev = list_entry(&bus->devices, struct pci_dev, bus_list);
+ } else {
+ slotno = PCI_SLOT(PCI_DN(dn->child)->devfn);
+
+ /* pci_scan_slot should find all children */
+ num = pci_scan_slot(bus, PCI_DEVFN(slotno, 0));
+ if (num) {
+ rpaphp_fixup_new_pci_devices(bus, 1);
+ pci_bus_add_devices(bus);
+ }
+ if (list_empty(&bus->devices)) {
+ err("%s: No new device found\n", __FUNCTION__);
+ return NULL;
+ }
+ list_for_each_entry(dev, &bus->devices, bus_list) {
+ if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE)
+ rpaphp_pci_config_bridge(dev);
+
+ rpaphp_eeh_add_bus_device(bus);
+ }
}
return dev;
}
-static void enable_eeh(struct device_node *dn)
+void rpaphp_eeh_init_nodes(struct device_node *dn)
{
struct device_node *sib;
for (sib = dn->child; sib; sib = sib->sibling)
- enable_eeh(sib);
+ rpaphp_eeh_init_nodes(sib);
eeh_add_device_early(dn);
return;
}
+EXPORT_SYMBOL_GPL(rpaphp_eeh_init_nodes);
static void print_slot_pci_funcs(struct pci_bus *bus)
{
@@ -287,7 +324,7 @@ int rpaphp_config_pci_adapter(struct pci_bus *bus)
if (!dn)
goto exit;
- enable_eeh(dn);
+ rpaphp_eeh_init_nodes(dn);
dev = rpaphp_pci_config_slot(bus);
if (!dev) {
err("%s: can't find any devices.\n", __FUNCTION__);
@@ -319,21 +356,17 @@ static void rpaphp_eeh_remove_bus_device(struct pci_dev *dev)
return;
}
-int rpaphp_unconfig_pci_adapter(struct slot *slot)
+int rpaphp_unconfig_pci_adapter(struct pci_bus *bus)
{
struct pci_dev *dev, *tmp;
- int retval = 0;
- list_for_each_entry_safe(dev, tmp, slot->pci_devs, bus_list) {
+ list_for_each_entry_safe(dev, tmp, &bus->devices, bus_list) {
rpaphp_eeh_remove_bus_device(dev);
pci_remove_bus_device(dev);
}
-
- slot->state = NOT_CONFIGURED;
- info("%s: devices in slot[%s] unconfigured.\n", __FUNCTION__,
- slot->name);
- return retval;
+ return 0;
}
+EXPORT_SYMBOL_GPL(rpaphp_unconfig_pci_adapter);
static int setup_pci_hotplug_slot_info(struct slot *slot)
{
@@ -447,8 +480,8 @@ int rpaphp_enable_pci_slot(struct slot *slot)
retval = rpaphp_config_pci_adapter(slot->bus);
if (!retval) {
slot->state = CONFIGURED;
- dbg("%s: PCI devices in slot[%s] has been configured\n",
- __FUNCTION__, slot->name);
+ info("%s: devices in slot[%s] configured\n",
+ __FUNCTION__, slot->name);
} else {
slot->state = NOT_CONFIGURED;
dbg("%s: no pci_dev struct for adapter in slot[%s]\n",