Merge branch 'linus' into x86/paravirt-spinlocks

Conflicts:

	arch/x86/kernel/Makefile

Signed-off-by: Ingo Molnar <mingo@elte.hu>

19 files changed, 471 insertions, 622 deletions

diff --git a/drivers/pci/hotplug/acpi_pcihp.c b/drivers/pci/hotplug/acpi_pcihp.c
index f8c187a763b..93e37f0666a 100644
--- a/drivers/pci/hotplug/acpi_pcihp.c
+++ b/drivers/pci/hotplug/acpi_pcihp.c
@@ -30,6 +30,7 @@
 #include <linux/types.h>
 #include <linux/pci.h>
 #include <linux/pci_hotplug.h>
+#include <linux/pci-acpi.h>
 #include <acpi/acpi.h>
 #include <acpi/acpi_bus.h>
 #include <acpi/actypes.h>
@@ -299,7 +300,7 @@ free_and_return:
  *
  * @handle - the handle of the hotplug controller.
  */
-acpi_status acpi_run_oshp(acpi_handle handle)
+static acpi_status acpi_run_oshp(acpi_handle handle)
 {
 	acpi_status		status;
 	struct acpi_buffer	string = { ACPI_ALLOCATE_BUFFER, NULL };
@@ -322,9 +323,6 @@ acpi_status acpi_run_oshp(acpi_handle handle)
 	kfree(string.pointer);
 	return status;
 }
-EXPORT_SYMBOL_GPL(acpi_run_oshp);
-
-
 
 /* acpi_get_hp_params_from_firmware
  *
@@ -374,6 +372,85 @@ acpi_status acpi_get_hp_params_from_firmware(struct pci_bus *bus,
 }
 EXPORT_SYMBOL_GPL(acpi_get_hp_params_from_firmware);
 
+/**
+ * acpi_get_hp_hw_control_from_firmware
+ * @dev: the pci_dev of the bridge that has a hotplug controller
+ * @flags: requested control bits for _OSC
+ *
+ * Attempt to take hotplug control from firmware.
+ */
+int acpi_get_hp_hw_control_from_firmware(struct pci_dev *dev, u32 flags)
+{
+	acpi_status status;
+	acpi_handle chandle, handle = DEVICE_ACPI_HANDLE(&(dev->dev));
+	struct pci_dev *pdev = dev;
+	struct pci_bus *parent;
+	struct acpi_buffer string = { ACPI_ALLOCATE_BUFFER, NULL };
+
+	flags &= (OSC_PCI_EXPRESS_NATIVE_HP_CONTROL |
+		  OSC_SHPC_NATIVE_HP_CONTROL |
+		  OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL);
+	if (!flags) {
+		err("Invalid flags %u specified!\n", flags);
+		return -EINVAL;
+	}
+
+	/*
+	 * Per PCI firmware specification, we should run the ACPI _OSC
+	 * method to get control of hotplug hardware before using it. If
+	 * an _OSC is missing, we look for an OSHP to do the same thing.
+	 * To handle different BIOS behavior, we look for _OSC and OSHP
+	 * within the scope of the hotplug controller and its parents,
+	 * upto the host bridge under which this controller exists.
+	 */
+	while (!handle) {
+		/*
+		 * This hotplug controller was not listed in the ACPI name
+		 * space at all. Try to get acpi handle of parent pci bus.
+		 */
+		if (!pdev || !pdev->bus->parent)
+			break;
+		parent = pdev->bus->parent;
+		dbg("Could not find %s in acpi namespace, trying parent\n",
+		    pci_name(pdev));
+		if (!parent->self)
+			/* Parent must be a host bridge */
+			handle = acpi_get_pci_rootbridge_handle(
+					pci_domain_nr(parent),
+					parent->number);
+		else
+			handle = DEVICE_ACPI_HANDLE(&(parent->self->dev));
+		pdev = parent->self;
+	}
+
+	while (handle) {
+		acpi_get_name(handle, ACPI_FULL_PATHNAME, &string);
+		dbg("Trying to get hotplug control for %s \n",
+		    (char *)string.pointer);
+		status = pci_osc_control_set(handle, flags);
+		if (status == AE_NOT_FOUND)
+			status = acpi_run_oshp(handle);
+		if (ACPI_SUCCESS(status)) {
+			dbg("Gained control for hotplug HW for pci %s (%s)\n",
+			    pci_name(dev), (char *)string.pointer);
+			kfree(string.pointer);
+			return 0;
+		}
+		if (acpi_root_bridge(handle))
+			break;
+		chandle = handle;
+		status = acpi_get_parent(chandle, &handle);
+		if (ACPI_FAILURE(status))
+			break;
+	}
+
+	dbg("Cannot get control of hotplug hardware for pci %s\n",
+	    pci_name(dev));
+
+	kfree(string.pointer);
+	return -ENODEV;
+}
+EXPORT_SYMBOL(acpi_get_hp_hw_control_from_firmware);
 
 /* acpi_root_bridge - check to see if this acpi object is a root bridge
  *
diff --git a/drivers/pci/hotplug/acpiphp.h b/drivers/pci/hotplug/acpiphp.h
index 7a29164d4b3..eecf7cbf413 100644
--- a/drivers/pci/hotplug/acpiphp.h
+++ b/drivers/pci/hotplug/acpiphp.h
@@ -215,7 +215,6 @@ extern u8 acpiphp_get_power_status (struct acpiphp_slot *slot);
 extern u8 acpiphp_get_attention_status (struct acpiphp_slot *slot);
 extern u8 acpiphp_get_latch_status (struct acpiphp_slot *slot);
 extern u8 acpiphp_get_adapter_status (struct acpiphp_slot *slot);
-extern u32 acpiphp_get_address (struct acpiphp_slot *slot);
 
 /* variables */
 extern int acpiphp_debug;
diff --git a/drivers/pci/hotplug/acpiphp_core.c b/drivers/pci/hotplug/acpiphp_core.c
index 7af68ba2790..0e496e866a8 100644
--- a/drivers/pci/hotplug/acpiphp_core.c
+++ b/drivers/pci/hotplug/acpiphp_core.c
@@ -70,7 +70,6 @@ static int disable_slot		(struct hotplug_slot *slot);
 static int set_attention_status (struct hotplug_slot *slot, u8 value);
 static int get_power_status	(struct hotplug_slot *slot, u8 *value);
 static int get_attention_status (struct hotplug_slot *slot, u8 *value);
-static int get_address		(struct hotplug_slot *slot, u32 *value);
 static int get_latch_status	(struct hotplug_slot *slot, u8 *value);
 static int get_adapter_status	(struct hotplug_slot *slot, u8 *value);
 
@@ -83,7 +82,6 @@ static struct hotplug_slot_ops acpi_hotplug_slot_ops = {
 	.get_attention_status	= get_attention_status,
 	.get_latch_status	= get_latch_status,
 	.get_adapter_status	= get_adapter_status,
-	.get_address		= get_address,
 };
 
 
@@ -274,23 +272,6 @@ static int get_adapter_status(struct hotplug_slot *hotplug_slot, u8 *value)
 	return 0;
 }
 
-
-/**
- * get_address - get pci address of a slot
- * @hotplug_slot: slot to get status
- * @value: pointer to struct pci_busdev (seg, bus, dev)
- */
-static int get_address(struct hotplug_slot *hotplug_slot, u32 *value)
-{
-	struct slot *slot = hotplug_slot->private;
-
-	dbg("%s - physical_slot = %s\n", __func__, hotplug_slot->name);
-
-	*value = acpiphp_get_address(slot->acpi_slot);
-
-	return 0;
-}
-
 static int __init init_acpi(void)
 {
 	int retval;
@@ -357,7 +338,11 @@ int acpiphp_register_hotplug_slot(struct acpiphp_slot *acpiphp_slot)
 	acpiphp_slot->slot = slot;
 	snprintf(slot->name, sizeof(slot->name), "%u", slot->acpi_slot->sun);
 
-	retval = pci_hp_register(slot->hotplug_slot);
+	retval = pci_hp_register(slot->hotplug_slot,
+					acpiphp_slot->bridge->pci_bus,
+					acpiphp_slot->device);
+	if (retval == -EBUSY)
+		goto error_hpslot;
 	if (retval) {
 		err("pci_hp_register failed with error %d\n", retval);
 		goto error_hpslot;
diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c
index 91156f85a92..a3e4705dd8f 100644
--- a/drivers/pci/hotplug/acpiphp_glue.c
+++ b/drivers/pci/hotplug/acpiphp_glue.c
@@ -258,7 +258,12 @@ register_slot(acpi_handle handle, u32 lvl, void *context, void **rv)
 				bridge->pci_bus->number, slot->device);
 		retval = acpiphp_register_hotplug_slot(slot);
 		if (retval) {
-			warn("acpiphp_register_hotplug_slot failed(err code = 0x%x)\n", retval);
+			if (retval == -EBUSY)
+				warn("Slot %d already registered by another "
+					"hotplug driver\n", slot->sun);
+			else
+				warn("acpiphp_register_hotplug_slot failed "
+					"(err code = 0x%x)\n", retval);
 			goto err_exit;
 		}
 	}
@@ -1878,19 +1883,3 @@ u8 acpiphp_get_adapter_status(struct acpiphp_slot *slot)
 
 	return (sta == 0) ? 0 : 1;
 }
-
-
-/*
- * pci address (seg/bus/dev)
- */
-u32 acpiphp_get_address(struct acpiphp_slot *slot)
-{
-	u32 address;
-	struct pci_bus *pci_bus = slot->bridge->pci_bus;
-
-	address = (pci_domain_nr(pci_bus) << 16) |
-		  (pci_bus->number << 8) |
-		  slot->device;
-
-	return address;
-}
diff --git a/drivers/pci/hotplug/acpiphp_ibm.c b/drivers/pci/hotplug/acpiphp_ibm.c
index ede9051fdb5..2b7c45e3937 100644
--- a/drivers/pci/hotplug/acpiphp_ibm.c
+++ b/drivers/pci/hotplug/acpiphp_ibm.c
@@ -33,8 +33,10 @@
 #include <linux/kobject.h>
 #include <asm/uaccess.h>
 #include <linux/moduleparam.h>
+#include <linux/pci.h>
 
 #include "acpiphp.h"
+#include "../pci.h"
 
 #define DRIVER_VERSION	"1.0.1"
 #define DRIVER_AUTHOR	"Irene Zubarev <zubarev@us.ibm.com>, Vernon Mauery <vernux@us.ibm.com>"
@@ -430,7 +432,7 @@ static int __init ibm_acpiphp_init(void)
 	int retval = 0;
 	acpi_status status;
 	struct acpi_device *device;
-	struct kobject *sysdir = &pci_hotplug_slots_kset->kobj;
+	struct kobject *sysdir = &pci_slots_kset->kobj;
 
 	dbg("%s\n", __func__);
 
@@ -477,7 +479,7 @@ init_return:
 static void __exit ibm_acpiphp_exit(void)
 {
 	acpi_status status;
-	struct kobject *sysdir = &pci_hotplug_slots_kset->kobj;
+	struct kobject *sysdir = &pci_slots_kset->kobj;
 
 	dbg("%s\n", __func__);
 
diff --git a/drivers/pci/hotplug/cpci_hotplug_core.c b/drivers/pci/hotplug/cpci_hotplug_core.c
index d8a6b80ab42..935947991dc 100644
--- a/drivers/pci/hotplug/cpci_hotplug_core.c
+++ b/drivers/pci/hotplug/cpci_hotplug_core.c
@@ -285,7 +285,7 @@ cpci_hp_register_bus(struct pci_bus *bus, u8 first, u8 last)
 		info->attention_status = cpci_get_attention_status(slot);
 
 		dbg("registering slot %s", slot->hotplug_slot->name);
-		status = pci_hp_register(slot->hotplug_slot);
+		status = pci_hp_register(slot->hotplug_slot, bus, i);
 		if (status) {
 			err("pci_hp_register failed with error %d", status);
 			goto error_name;
diff --git a/drivers/pci/hotplug/cpqphp_core.c b/drivers/pci/hotplug/cpqphp_core.c
index 36b115b27b0..54defec51d0 100644
--- a/drivers/pci/hotplug/cpqphp_core.c
+++ b/drivers/pci/hotplug/cpqphp_core.c
@@ -434,7 +434,9 @@ static int ctrl_slot_setup(struct controller *ctrl,
 				slot->bus, slot->device,
 				slot->number, ctrl->slot_device_offset,
 				slot_number);
-		result = pci_hp_register(hotplug_slot);
+		result = pci_hp_register(hotplug_slot,
+					 ctrl->pci_dev->subordinate,
+					 slot->device);
 		if (result) {
 			err("pci_hp_register failed with error %d\n", result);
 			goto error_name;
diff --git a/drivers/pci/hotplug/fakephp.c b/drivers/pci/hotplug/fakephp.c
index 7e9a827c268..40337a06c18 100644
--- a/drivers/pci/hotplug/fakephp.c
+++ b/drivers/pci/hotplug/fakephp.c
@@ -66,6 +66,7 @@ struct dummy_slot {
 	struct pci_dev *dev;
 	struct work_struct remove_work;
 	unsigned long removed;
+	char name[8];
 };
 
 static int debug;
@@ -100,6 +101,7 @@ static int add_slot(struct pci_dev *dev)
 	struct dummy_slot *dslot;
 	struct hotplug_slot *slot;
 	int retval = -ENOMEM;
+	static int count = 1;
 
 	slot = kzalloc(sizeof(struct hotplug_slot), GFP_KERNEL);
 	if (!slot)
@@ -113,18 +115,18 @@ static int add_slot(struct pci_dev *dev)
 	slot->info->max_bus_speed = PCI_SPEED_UNKNOWN;
 	slot->info->cur_bus_speed = PCI_SPEED_UNKNOWN;
 
-	slot->name = &dev->dev.bus_id[0];
-	dbg("slot->name = %s\n", slot->name);
-
 	dslot = kzalloc(sizeof(struct dummy_slot), GFP_KERNEL);
 	if (!dslot)
 		goto error_info;
 
+	slot->name = dslot->name;
+	snprintf(slot->name, sizeof(dslot->name), "fake%d", count++);
+	dbg("slot->name = %s\n", slot->name);
 	slot->ops = &dummy_hotplug_slot_ops;
 	slot->release = &dummy_release;
 	slot->private = dslot;
 
-	retval = pci_hp_register(slot);
+	retval = pci_hp_register(slot, dev->bus, PCI_SLOT(dev->devfn));
 	if (retval) {
 		err("pci_hp_register failed with error %d\n", retval);
 		goto error_dslot;
@@ -148,17 +150,17 @@ error:
 static int __init pci_scan_buses(void)
 {
 	struct pci_dev *dev = NULL;
-	int retval = 0;
+	int lastslot = 0;
 
 	while ((dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) {
-		retval = add_slot(dev);
-		if (retval) {
-			pci_dev_put(dev);
-			break;
-		}
+		if (PCI_FUNC(dev->devfn) > 0 &&
+				lastslot == PCI_SLOT(dev->devfn))
+			continue;
+		lastslot = PCI_SLOT(dev->devfn);
+		add_slot(dev);
 	}
 
-	return retval;
+	return 0;
 }
 
 static void remove_slot(struct dummy_slot *dslot)
@@ -296,23 +298,9 @@ static int enable_slot(struct hotplug_slot *hotplug_slot)
 	return 0;
 }
 
-/* find the hotplug_slot for the pci_dev */
-static struct hotplug_slot *get_slot_from_dev(struct pci_dev *dev)
-{
-	struct dummy_slot *dslot;
-
-	list_for_each_entry(dslot, &slot_list, node) {
-		if (dslot->dev == dev)
-			return dslot->slot;
-	}
-	return NULL;
-}
-
-
 static int disable_slot(struct hotplug_slot *slot)
 {
 	struct dummy_slot *dslot;
-	struct hotplug_slot *hslot;
 	struct pci_dev *dev;
 	int func;
 
@@ -322,41 +310,27 @@ static int disable_slot(struct hotplug_slot *slot)
 
 	dbg("%s - physical_slot = %s\n", __func__, slot->name);
 
-	/* don't disable bridged devices just yet, we can't handle them easily... */
-	if (dslot->dev->subordinate) {
-		err("Can't remove PCI devices with other PCI devices behind it yet.\n");
-		return -ENODEV;
-	}
-	if (test_and_set_bit(0, &dslot->removed)) {
-		dbg("Slot already scheduled for removal\n");
-		return -ENODEV;
-	}
-	/* search for subfunctions and disable them first */
-	if (!(dslot->dev->devfn & 7)) {
-		for (func = 1; func < 8; func++) {
-			dev = pci_get_slot(dslot->dev->bus,
-					dslot->dev->devfn + func);
-			if (dev) {
-				hslot = get_slot_from_dev(dev);
-				if (hslot)
-					disable_slot(hslot);
-				else {
-					err("Hotplug slot not found for subfunction of PCI device\n");
-					return -ENODEV;
-				}
-				pci_dev_put(dev);
-			} else
-				dbg("No device in slot found\n");
+	for (func = 7; func >= 0; func--) {
+		dev = pci_get_slot(dslot->dev->bus, dslot->dev->devfn + func);
+		if (!dev)
+			continue;
+
+		if (test_and_set_bit(0, &dslot->removed)) {
+			dbg("Slot already scheduled for removal\n");
+			return -ENODEV;
 		}
-	}
 
-	/* remove the device from the pci core */
-	pci_remove_bus_device(dslot->dev);
+		/* queue work item to blow away this sysfs entry and other
+		 * parts.
+		 */
+		INIT_WORK(&dslot->remove_work, remove_slot_worker);
+		queue_work(dummyphp_wq, &dslot->remove_work);
 
-	/* queue work item to blow away this sysfs entry and other parts. */
-	INIT_WORK(&dslot->remove_work, remove_slot_worker);
-	queue_work(dummyphp_wq, &dslot->remove_work);
+		/* blow away this sysfs entry and other parts. */
+		remove_slot(dslot);
 
+		pci_dev_put(dev);
+	}
 	return 0;
 }
 
diff --git a/drivers/pci/hotplug/ibmphp_ebda.c b/drivers/pci/hotplug/ibmphp_ebda.c
index dca7efc14be..8467d028732 100644
--- a/drivers/pci/hotplug/ibmphp_ebda.c
+++ b/drivers/pci/hotplug/ibmphp_ebda.c
@@ -1001,7 +1001,8 @@ static int __init ebda_rsrc_controller (void)
 		tmp_slot = list_entry (list, struct slot, ibm_slot_list);
 
 		snprintf (tmp_slot->hotplug_slot->name, 30, "%s", create_file_name (tmp_slot));
-		pci_hp_register (tmp_slot->hotplug_slot);
+		pci_hp_register(tmp_slot->hotplug_slot,
+			pci_find_bus(0, tmp_slot->bus), tmp_slot->device);
 	}
 
 	print_ebda_hpc ();
diff --git a/drivers/pci/hotplug/pci_hotplug_core.c b/drivers/pci/hotplug/pci_hotplug_core.c
index a11021e8ce3..5f85b1b120e 100644
--- a/drivers/pci/hotplug/pci_hotplug_core.c
+++ b/drivers/pci/hotplug/pci_hotplug_core.c
@@ -40,6 +40,7 @@
 #include <linux/pci.h>
 #include <linux/pci_hotplug.h>
 #include <asm/uaccess.h>
+#include "../pci.h"
 
 #define MY_NAME	"pci_hotplug"
 
@@ -60,41 +61,7 @@ static int debug;
 //////////////////////////////////////////////////////////////////
 
 static LIST_HEAD(pci_hotplug_slot_list);
-
-struct kset *pci_hotplug_slots_kset;
-
-static ssize_t hotplug_slot_attr_show(struct kobject *kobj,
-		struct attribute *attr, char *buf)
-{
-	struct hotplug_slot *slot = to_hotplug_slot(kobj);
-	struct hotplug_slot_attribute *attribute = to_hotplug_attr(attr);
-	return attribute->show ? attribute->show(slot, buf) : -EIO;
-}
-
-static ssize_t hotplug_slot_attr_store(struct kobject *kobj,
-		struct attribute *attr, const char *buf, size_t len)
-{
-	struct hotplug_slot *slot = to_hotplug_slot(kobj);
-	struct hotplug_slot_attribute *attribute = to_hotplug_attr(attr);
-	return attribute->store ? attribute->store(slot, buf, len) : -EIO;
-}
-
-static struct sysfs_ops hotplug_slot_sysfs_ops = {
-	.show = hotplug_slot_attr_show,
-	.store = hotplug_slot_attr_store,
-};
-
-static void hotplug_slot_release(struct kobject *kobj)
-{
-	struct hotplug_slot *slot = to_hotplug_slot(kobj);
-	if (slot->release)
-		slot->release(slot);
-}
-
-static struct kobj_type hotplug_slot_ktype = {
-	.sysfs_ops = &hotplug_slot_sysfs_ops,
-	.release = &hotplug_slot_release,
-};
+static DEFINE_SPINLOCK(pci_hotplug_slot_list_lock);
 
 /* these strings match up with the values in pci_bus_speed */
 static char *pci_bus_speed_strings[] = {
@@ -149,16 +116,15 @@ GET_STATUS(power_status, u8)
 GET_STATUS(attention_status, u8)
 GET_STATUS(latch_status, u8)
 GET_STATUS(adapter_status, u8)
-GET_STATUS(address, u32)
 GET_STATUS(max_bus_speed, enum pci_bus_speed)
 GET_STATUS(cur_bus_speed, enum pci_bus_speed)
 
-static ssize_t power_read_file (struct hotplug_slot *slot, char *buf)
+static ssize_t power_read_file(struct pci_slot *slot, char *buf)
 {
 	int retval;
 	u8 value;
 
-	retval = get_power_status (slot, &value);
+	retval = get_power_status(slot->hotplug, &value);
 	if (retval)
 		goto exit;
 	retval = sprintf (buf, "%d\n", value);
@@ -166,9 +132,10 @@ exit:
 	return retval;
 }
 
-static ssize_t power_write_file (struct hotplug_slot *slot, const char *buf,
+static ssize_t power_write_file(struct pci_slot *pci_slot, const char *buf,
 		size_t count)
 {
+	struct hotplug_slot *slot = pci_slot->hotplug;
 	unsigned long lpower;
 	u8 power;
 	int retval = 0;
@@ -204,29 +171,30 @@ exit:
 	return count;
 }
 
-static struct hotplug_slot_attribute hotplug_slot_attr_power = {
+static struct pci_slot_attribute hotplug_slot_attr_power = {
 	.attr = {.name = "power", .mode = S_IFREG | S_IRUGO | S_IWUSR},
 	.show = power_read_file,
 	.store = power_write_file
 };
 
-static ssize_t attention_read_file (struct hotplug_slot *slot, char *buf)
+static ssize_t attention_read_file(struct pci_slot *slot, char *buf)
 {
 	int retval;
 	u8 value;
 
-	retval = get_attention_status (slot, &value);
+	retval = get_attention_status(slot->hotplug, &value);
 	if (retval)
 		goto exit;
-	retval = sprintf (buf, "%d\n", value);
+	retval = sprintf(buf, "%d\n", value);
 
 exit:
 	return retval;
 }
 
-static ssize_t attention_write_file (struct hotplug_slot *slot, const char *buf,
+static ssize_t attention_write_file(struct pci_slot *slot, const char *buf,
 		size_t count)
 {
+	struct hotplug_slot_ops *ops = slot->hotplug->ops;
 	unsigned long lattention;
 	u8 attention;
 	int retval = 0;
@@ -235,13 +203,13 @@ static ssize_t attention_write_file (struct hotplug_slot *slot, const char *buf,
 	attention = (u8)(lattention & 0xff);
 	dbg (" - attention = %d\n", attention);
 
-	if (!try_module_get(slot->ops->owner)) {
+	if (!try_module_get(ops->owner)) {
 		retval = -ENODEV;
 		goto exit;
 	}
-	if (slot->ops->set_attention_status)
-		retval = slot->ops->set_attention_status(slot, attention);
-	module_put(slot->ops->owner);
+	if (ops->set_attention_status)
+		retval = ops->set_attention_status(slot->hotplug, attention);
+	module_put(ops->owner);
 
 exit:	
 	if (retval)
@@ -249,18 +217,18 @@ exit:
 	return count;
 }
 
-static struct hotplug_slot_attribute hotplug_slot_attr_attention = {
+static struct pci_slot_attribute hotplug_slot_attr_attention = {
 	.attr = {.name = "attention", .mode = S_IFREG | S_IRUGO | S_IWUSR},
 	.show = attention_read_file,
 	.store = attention_write_file
 };
 
-static ssize_t latch_read_file (struct hotplug_slot *slot, char *buf)
+static ssize_t latch_read_file(struct pci_slot *slot, char *buf)
 {
 	int retval;
 	u8 value;
 
-	retval = get_latch_status (slot, &value);
+	retval = get_latch_status(slot->hotplug, &value);
 	if (retval)
 		goto exit;
 	retval = sprintf (buf, "%d\n", value);
@@ -269,17 +237,17 @@ exit:
 	return retval;
 }
 
-static struct hotplug_slot_attribute hotplug_slot_attr_latch = {
+static struct pci_slot_attribute hotplug_slot_attr_latch = {
 	.attr = {.name = "latch", .mode = S_IFREG | S_IRUGO},
 	.show = latch_read_file,
 };
 
-static ssize_t presence_read_file (struct hotplug_slot *slot, char *buf)
+static ssize_t presence_read_file(struct pci_slot *slot, char *buf)
 {
 	int retval;
 	u8 value;
 
-	retval = get_adapter_status (slot, &value);
+	retval = get_adapter_status(slot->hotplug, &value);
 	if (retval)
 		goto exit;
 	retval = sprintf (buf, "%d\n", value);
@@ -288,42 +256,20 @@ exit:
 	return retval;
 }
 
-static struct hotplug_slot_attribute hotplug_slot_attr_presence = {
+static struct pci_slot_attribute hotplug_slot_attr_presence = {
 	.attr = {.name = "adapter", .mode = S_IFREG | S_IRUGO},
 	.show = presence_read_file,
 };
 
-static ssize_t address_read_file (struct hotplug_slot *slot, char *buf)
-{
-	int retval;
-	u32 address;
-
-	retval = get_address (slot, &address);
-	if (retval)
-		goto exit;
-	retval = sprintf (buf, "%04x:%02x:%02x\n",
-			  (address >> 16) & 0xffff,
-			  (address >> 8) & 0xff,
-			  address & 0xff);
-
-exit:
-	return retval;
-}
-
-static struct hotplug_slot_attribute hotplug_slot_attr_address = {
-	.attr = {.name = "address", .mode = S_IFREG | S_IRUGO},
-	.show = address_read_file,
-};
-
 static char *unknown_speed = "Unknown bus speed";
 
-static ssize_t max_bus_speed_read_file (struct hotplug_slot *slot, char *buf)
+static ssize_t max_bus_speed_read_file(struct pci_slot *slot, char *buf)
 {
 	char *speed_string;
 	int retval;
 	enum pci_bus_speed value;
 	
-	retval = get_max_bus_speed (slot, &value);
+	retval = get_max_bus_speed(slot->hotplug, &value);
 	if (retval)
 		goto exit;
 
@@ -338,18 +284,18 @@ exit:
 	return retval;
 }
 
-static struct hotplug_slot_attribute hotplug_slot_attr_max_bus_speed = {
+static struct pci_slot_attribute hotplug_slot_attr_max_bus_speed = {
 	.attr = {.name = "max_bus_speed", .mode = S_IFREG | S_IRUGO},
 	.show = max_bus_speed_read_file,
 };
 
-static ssize_t cur_bus_speed_read_file (struct hotplug_slot *slot, char *buf)
+static ssize_t cur_bus_speed_read_file(struct pci_slot *slot, char *buf)
 {
 	char *speed_string;
 	int retval;
 	enum pci_bus_speed value;
 
-	retval = get_cur_bus_speed (slot, &value);
+	retval = get_cur_bus_speed(slot->hotplug, &value);
 	if (retval)
 		goto exit;
 
@@ -364,14 +310,15 @@ exit:
 	return retval;
 }
 
-static struct hotplug_slot_attribute hotplug_slot_attr_cur_bus_speed = {
+static struct pci_slot_attribute hotplug_slot_attr_cur_bus_speed = {
 	.attr = {.name = "cur_bus_speed", .mode = S_IFREG | S_IRUGO},
 	.show = cur_bus_speed_read_file,
 };
 
-static ssize_t test_write_file (struct hotplug_slot *slot, const char *buf,
+static ssize_t test_write_file(struct pci_slot *pci_slot, const char *buf,
 		size_t count)
 {
+	struct hotplug_slot *slot = pci_slot->hotplug;
 	unsigned long ltest;
 	u32 test;
 	int retval = 0;
@@ -394,13 +341,14 @@ exit:
 	return count;
 }
 
-static struct hotplug_slot_attribute hotplug_slot_attr_test = {
+static struct pci_slot_attribute hotplug_slot_attr_test = {
 	.attr = {.name = "test", .mode = S_IFREG | S_IRUGO | S_IWUSR},
 	.store = test_write_file
 };
 
-static int has_power_file (struct hotplug_slot *slot)
+static int has_power_file(struct pci_slot *pci_slot)
 {
+	struct hotplug_slot *slot = pci_slot->hotplug;
 	if ((!slot) || (!slot->ops))
 		return -ENODEV;
 	if ((slot->ops->enable_slot) ||
@@ -410,8 +358,9 @@ static int has_power_file (struct hotplug_slot *slot)
 	return -ENOENT;
 }
 
-static int has_attention_file (struct hotplug_slot *slot)
+static int has_attention_file(struct pci_slot *pci_slot)
 {
+	struct hotplug_slot *slot = pci_slot->hotplug;
 	if ((!slot) || (!slot->ops))
 		return -ENODEV;
 	if ((slot->ops->set_attention_status) ||
@@ -420,8 +369,9 @@ static int has_attention_file (struct hotplug_slot *slot)
 	return -ENOENT;
 }
 
-static int has_latch_file (struct hotplug_slot *slot)
+static int has_latch_file(struct pci_slot *pci_slot)
 {
+	struct hotplug_slot *slot = pci_slot->hotplug;
 	if ((!slot) || (!slot->ops))
 		return -ENODEV;
 	if (slot->ops->get_latch_status)
@@ -429,8 +379,9 @@ static int has_latch_file (struct hotplug_slot *slot)
 	return -ENOENT;
 }
 
-static int has_adapter_file (struct hotplug_slot *slot)
+static int has_adapter_file(struct pci_slot *pci_slot)
 {
+	struct hotplug_slot *slot = pci_slot->hotplug;
 	if ((!slot) || (!slot->ops))
 		return -ENODEV;
 	if (slot->ops->get_adapter_status)
@@ -438,17 +389,9 @@ static int has_adapter_file (struct hotplug_slot *slot)
 	return -ENOENT;
 }
 
-static int has_address_file (struct hotplug_slot *slot)
-{
-	if ((!slot) || (!slot->ops))
-		return -ENODEV;
-	if (slot->ops->get_address)
-		return 0;
-	return -ENOENT;
-}
-
-static int has_max_bus_speed_file (struct hotplug_slot *slot)
+static int has_max_bus_speed_file(struct pci_slot *pci_slot)
 {
+	struct hotplug_slot *slot = pci_slot->hotplug;
 	if ((!slot) || (!slot->ops))
 		return -ENODEV;
 	if (slot->ops->get_max_bus_speed)
@@ -456,8 +399,9 @@ static int has_max_bus_speed_file (struct hotplug_slot *slot)
 	return -ENOENT;
 }
 
-static int has_cur_bus_speed_file (struct hotplug_slot *slot)
+static int has_cur_bus_speed_file(struct pci_slot *pci_slot)
 {
+	struct hotplug_slot *slot = pci_slot->hotplug;
 	if ((!slot) || (!slot->ops))
 		return -ENODEV;
 	if (slot->ops->get_cur_bus_speed)
@@ -465,8 +409,9 @@ static int has_cur_bus_speed_file (struct hotplug_slot *slot)
 	return -ENOENT;
 }
 
-static int has_test_file (struct hotplug_slot *slot)
+static int has_test_file(struct pci_slot *pci_slot)
 {
+	struct hotplug_slot *slot = pci_slot->hotplug;
 	if ((!slot) || (!slot->ops))
 		return -ENODEV;
 	if (slot->ops->hardware_test)
@@ -474,7 +419,7 @@ static int has_test_file (struct hotplug_slot *slot)
 	return -ENOENT;
 }
 
-static int fs_add_slot (struct hotplug_slot *slot)
+static int fs_add_slot(struct pci_slot *slot)
 {
 	int retval = 0;
 
@@ -505,13 +450,6 @@ static int fs_add_slot (struct hotplug_slot *slot)
 			goto exit_adapter;
 	}
 
-	if (has_address_file(slot) == 0) {
-		retval = sysfs_create_file(&slot->kobj,
-					   &hotplug_slot_attr_address.attr);
-		if (retval)
-			goto exit_address;
-	}
-
 	if (has_max_bus_speed_file(slot) == 0) {
 		retval = sysfs_create_file(&slot->kobj,
 					   &hotplug_slot_attr_max_bus_speed.attr);
@@ -544,10 +482,6 @@ exit_cur_speed:
 		sysfs_remove_file(&slot->kobj, &hotplug_slot_attr_max_bus_speed.attr);
 
 exit_max_speed:
-	if (has_address_file(slot) == 0)
-		sysfs_remove_file(&slot->kobj, &hotplug_slot_attr_address.attr);
-
-exit_address:
 	if (has_adapter_file(slot) == 0)
 		sysfs_remove_file(&slot->kobj, &hotplug_slot_attr_presence.attr);
 
@@ -567,7 +501,7 @@ exit:
 	return retval;
 }
 
-static void fs_remove_slot (struct hotplug_slot *slot)
+static void fs_remove_slot(struct pci_slot *slot)
 {
 	if (has_power_file(slot) == 0)
 		sysfs_remove_file(&slot->kobj, &hotplug_slot_attr_power.attr);
@@ -581,9 +515,6 @@ static void fs_remove_slot (struct hotplug_slot *slot)
 	if (has_adapter_file(slot) == 0)
 		sysfs_remove_file(&slot->kobj, &hotplug_slot_attr_presence.attr);
 
-	if (has_address_file(slot) == 0)
-		sysfs_remove_file(&slot->kobj, &hotplug_slot_attr_address.attr);
-
 	if (has_max_bus_speed_file(slot) == 0)
 		sysfs_remove_file(&slot->kobj, &hotplug_slot_attr_max_bus_speed.attr);
 
@@ -599,27 +530,33 @@ static struct hotplug_slot *get_slot_from_name (const char *name)
 	struct hotplug_slot *slot;
 	struct list_head *tmp;
 
+	spin_lock(&pci_hotplug_slot_list_lock);
 	list_for_each (tmp, &pci_hotplug_slot_list) {
 		slot = list_entry (tmp, struct hotplug_slot, slot_list);
 		if (strcmp(slot->name, name) == 0)
-			return slot;
+			goto out;
 	}
-	return NULL;
+	slot = NULL;
+out:
+	spin_unlock(&pci_hotplug_slot_list_lock);
+	return slot;
 }
 
 /**
  * pci_hp_register - register a hotplug_slot with the PCI hotplug subsystem
+ * @bus: bus this slot is on
  * @slot: pointer to the &struct hotplug_slot to register
+ * @slot_nr: slot number
  *
  * Registers a hotplug slot with the pci hotplug subsystem, which will allow
  * userspace interaction to the slot.
  *
  * Returns 0 if successful, anything else for an error.
  */
-int pci_hp_register (struct hotplug_slot *slot)
+int pci_hp_register(struct hotplug_slot *slot, struct pci_bus *bus, int slot_nr)
 {
 	int result;
-	struct hotplug_slot *tmp;
+	struct pci_slot *pci_slot;
 
 	if (slot == NULL)
 		return -ENODEV;
@@ -632,57 +569,89 @@ int pci_hp_register (struct hotplug_slot *slot)
 	}
 
 	/* Check if we have already registered a slot with the same name. */
-	tmp = get_slot_from_name(slot->name);
-	if (tmp)
+	if (get_slot_from_name(slot->name))
 		return -EEXIST;
 
-	slot->kobj.kset = pci_hotplug_slots_kset;
-	result = kobject_init_and_add(&slot->kobj, &hotplug_slot_ktype, NULL,
-				      "%s", slot->name);
-	if (result) {
-		err("Unable to register kobject '%s'", slot->name);
-		return -EINVAL;
+	/*
+	 * No problems if we call this interface from both ACPI_PCI_SLOT
+	 * driver and call it here again. If we've already created the
+	 * pci_slot, the interface will simply bump the refcount.
+	 */
+	pci_slot = pci_create_slot(bus, slot_nr, slot->name);
+	if (IS_ERR(pci_slot))
+		return PTR_ERR(pci_slot);
+
+	if (pci_slot->hotplug) {
+		dbg("%s: already claimed\n", __func__);
+		pci_destroy_slot(pci_slot);
+		return -EBUSY;
 	}
 
-	list_add (&slot->slot_list, &pci_hotplug_slot_list);
+	slot->pci_slot = pci_slot;
+	pci_slot->hotplug = slot;
+
+	/*
+	 * Allow pcihp drivers to override the ACPI_PCI_SLOT name.
+	 */
+	if (strcmp(kobject_name(&pci_slot->kobj), slot->name)) {
+		result = kobject_rename(&pci_slot->kobj, slot->name);
+		if (result) {
+			pci_destroy_slot(pci_slot);
+			return result;
+		}
+	}
+
+	spin_lock(&pci_hotplug_slot_list_lock);
+	list_add(&slot->slot_list, &pci_hotplug_slot_list);
+	spin_unlock(&pci_hotplug_slot_list_lock);
+
+	result = fs_add_slot(pci_slot);
+	kobject_uevent(&pci_slot->kobj, KOBJ_ADD);
+	dbg("Added slot %s to the list\n", slot->name);
+
 
-	result = fs_add_slot (slot);
-	kobject_uevent(&slot->kobj, KOBJ_ADD);
-	dbg ("Added slot %s to the list\n", slot->name);
 	return result;
 }
 
 /**
  * pci_hp_deregister - deregister a hotplug_slot with the PCI hotplug subsystem
- * @slot: pointer to the &struct hotplug_slot to deregister
+ * @hotplug: pointer to the &struct hotplug_slot to deregister
  *
  * The @slot must have been registered with the pci hotplug subsystem
  * previously with a call to pci_hp_register().
  *
  * Returns 0 if successful, anything else for an error.
  */
-int pci_hp_deregister (struct hotplug_slot *slot)
+int pci_hp_deregister(struct hotplug_slot *hotplug)
 {
 	struct hotplug_slot *temp;
+	struct pci_slot *slot;
 
-	if (slot == NULL)
+	if (!hotplug)
 		return -ENODEV;
 
-	temp = get_slot_from_name (slot->name);
-	if (temp != slot) {
+	temp = get_slot_from_name(hotplug->name);
+	if (temp != hotplug)
 		return -ENODEV;
-	}
-	list_del (&slot->slot_list);
 
-	fs_remove_slot (slot);
-	dbg ("Removed slot %s from the list\n", slot->name);
-	kobject_put(&slot->kobj);
+	spin_lock(&pci_hotplug_slot_list_lock);
+	list_del(&hotplug->slot_list);
+	spin_unlock(&pci_hotplug_slot_list_lock);
+
+	slot = hotplug->pci_slot;
+	fs_remove_slot(slot);
+	dbg("Removed slot %s from the list\n", hotplug->name);
+
+	hotplug->release(hotplug);
+	slot->hotplug = NULL;
+	pci_destroy_slot(slot);
+
 	return 0;
 }
 
 /**
  * pci_hp_change_slot_info - changes the slot's information structure in the core
- * @slot: pointer to the slot whose info has changed
+ * @hotplug: pointer to the slot whose info has changed
  * @info: pointer to the info copy into the slot's info structure
  *
  * @slot must have been registered with the pci 
@@ -690,13 +659,15 @@ int pci_hp_deregister (struct hotplug_slot *slot)
  *
  * Returns 0 if successful, anything else for an error.
  */
-int __must_check pci_hp_change_slot_info(struct hotplug_slot *slot,
+int __must_check pci_hp_change_slot_info(struct hotplug_slot *hotplug,
 					 struct hotplug_slot_info *info)
 {
-	if ((slot == NULL) || (info == NULL))
+	struct pci_slot *slot;
+	if (!hotplug || !info)
 		return -ENODEV;
+	slot = hotplug->pci_slot;
 
-	memcpy (slot->info, info, sizeof (struct hotplug_slot_info));
+	memcpy(hotplug->info, info, sizeof(struct hotplug_slot_info));
 
 	return 0;
 }
@@ -704,36 +675,22 @@ int __must_check pci_hp_change_slot_info(struct hotplug_slot *slot,
 static int __init pci_hotplug_init (void)
 {
 	int result;
-	struct kset *pci_bus_kset;
 
-	pci_bus_kset = bus_get_kset(&pci_bus_type);
-
-	pci_hotplug_slots_kset = kset_create_and_add("slots", NULL,
-						     &pci_bus_kset->kobj);
-	if (!pci_hotplug_slots_kset) {
-		result = -ENOMEM;
-		err("Register subsys error\n");
-		goto exit;
-	}
 	result = cpci_hotplug_init(debug);
 	if (result) {
 		err ("cpci_hotplug_init with error %d\n", result);
-		goto err_subsys;
+		goto err_cpci;
 	}
 
 	info (DRIVER_DESC " version: " DRIVER_VERSION "\n");
-	goto exit;
 
-err_subsys:
-	kset_unregister(pci_hotplug_slots_kset);
-exit:
+err_cpci:
 	return result;
 }
 
 static void __exit pci_hotplug_exit (void)
 {
 	cpci_hotplug_exit();
-	kset_unregister(pci_hotplug_slots_kset);
 }
 
 module_init(pci_hotplug_init);
@@ -745,7 +702,6 @@ MODULE_LICENSE("GPL");
 module_param(debug, bool, 0644);
 MODULE_PARM_DESC(debug, "Debugging mode enabled or not");
 
-EXPORT_SYMBOL_GPL(pci_hotplug_slots_kset);
 EXPORT_SYMBOL_GPL(pci_hp_register);
 EXPORT_SYMBOL_GPL(pci_hp_deregister);
 EXPORT_SYMBOL_GPL(pci_hp_change_slot_info);
diff --git a/drivers/pci/hotplug/pciehp.h b/drivers/pci/hotplug/pciehp.h
index 79c9ddaad3f..e3a1e7e7dba 100644
--- a/drivers/pci/hotplug/pciehp.h
+++ b/drivers/pci/hotplug/pciehp.h
@@ -43,6 +43,7 @@ extern int pciehp_poll_mode;
 extern int pciehp_poll_time;
 extern int pciehp_debug;
 extern int pciehp_force;
+extern int pciehp_slot_with_bus;
 extern struct workqueue_struct *pciehp_wq;
 
 #define dbg(format, arg...)						\
@@ -96,7 +97,7 @@ struct controller {
 	u32 slot_cap;
 	u8 cap_base;
 	struct timer_list poll_timer;
-	volatile int cmd_busy;
+	int cmd_busy;
 	unsigned int no_cmd_complete:1;
 };
 
@@ -156,10 +157,10 @@ extern u8 pciehp_handle_power_fault(struct slot *p_slot);
 extern int pciehp_configure_device(struct slot *p_slot);
 extern int pciehp_unconfigure_device(struct slot *p_slot);
 extern void pciehp_queue_pushbutton_work(struct work_struct *work);
-int pcie_init(struct controller *ctrl, struct pcie_device *dev);
+struct controller *pcie_init(struct pcie_device *dev);
 int pciehp_enable_slot(struct slot *p_slot);
 int pciehp_disable_slot(struct slot *p_slot);
-int pcie_init_hardware_part2(struct controller *ctrl, struct pcie_device *dev);
+int pcie_enable_notification(struct controller *ctrl);
 
 static inline struct slot *pciehp_find_slot(struct controller *ctrl, u8 device)
 {
@@ -202,8 +203,13 @@ struct hpc_ops {
 #include <acpi/actypes.h>
 #include <linux/pci-acpi.h>
 
-#define pciehp_get_hp_hw_control_from_firmware(dev)			\
-	pciehp_acpi_get_hp_hw_control_from_firmware(dev)
+static inline int pciehp_get_hp_hw_control_from_firmware(struct pci_dev *dev)
+{
+	u32 flags = (OSC_PCI_EXPRESS_NATIVE_HP_CONTROL |
+		     OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL);
+	return acpi_get_hp_hw_control_from_firmware(dev, flags);
+}
+
 static inline int pciehp_get_hp_params_from_firmware(struct pci_dev *dev,
 			struct hotplug_params *hpp)
 {
diff --git a/drivers/pci/hotplug/pciehp_core.c b/drivers/pci/hotplug/pciehp_core.c
index 48a2ed37891..3677495c4f9 100644
--- a/drivers/pci/hotplug/pciehp_core.c
+++ b/drivers/pci/hotplug/pciehp_core.c
@@ -72,7 +72,6 @@ static int get_power_status	(struct hotplug_slot *slot, u8 *value);
 static int get_attention_status	(struct hotplug_slot *slot, u8 *value);
 static int get_latch_status	(struct hotplug_slot *slot, u8 *value);
 static int get_adapter_status	(struct hotplug_slot *slot, u8 *value);
-static int get_address		(struct hotplug_slot *slot, u32 *value);
 static int get_max_bus_speed	(struct hotplug_slot *slot, enum pci_bus_speed *value);
 static int get_cur_bus_speed	(struct hotplug_slot *slot, enum pci_bus_speed *value);
 
@@ -85,7 +84,6 @@ static struct hotplug_slot_ops pciehp_hotplug_slot_ops = {
 	.get_attention_status =	get_attention_status,
 	.get_latch_status =	get_latch_status,
 	.get_adapter_status =	get_adapter_status,
-	.get_address =		get_address,
   	.get_max_bus_speed =	get_max_bus_speed,
   	.get_cur_bus_speed =	get_cur_bus_speed,
 };
@@ -185,23 +183,10 @@ static struct hotplug_slot_attribute hotplug_slot_attr_lock = {
  */
 static void release_slot(struct hotplug_slot *hotplug_slot)
 {
-	struct slot *slot = hotplug_slot->private;
-
 	dbg("%s - physical_slot = %s\n", __func__, hotplug_slot->name);
 
-	kfree(slot->hotplug_slot->info);
-	kfree(slot->hotplug_slot);
-	kfree(slot);
-}
-
-static void make_slot_name(struct slot *slot)
-{
-	if (pciehp_slot_with_bus)
-		snprintf(slot->hotplug_slot->name, SLOT_NAME_SIZE, "%04d_%04d",
-			 slot->bus, slot->number);
-	else
-		snprintf(slot->hotplug_slot->name, SLOT_NAME_SIZE, "%d",
-			 slot->number);
+	kfree(hotplug_slot->info);
+	kfree(hotplug_slot);
 }
 
 static int init_slots(struct controller *ctrl)
@@ -210,49 +195,34 @@ static int init_slots(struct controller *ctrl)
 	struct hotplug_slot *hotplug_slot;
 	struct hotplug_slot_info *info;
 	int retval = -ENOMEM;
-	int i;
-
-	for (i = 0; i < ctrl->num_slots; i++) {
-		slot = kzalloc(sizeof(*slot), GFP_KERNEL);
-		if (!slot)
-			goto error;
 
+	list_for_each_entry(slot, &ctrl->slot_list, slot_list) {
 		hotplug_slot = kzalloc(sizeof(*hotplug_slot), GFP_KERNEL);
 		if (!hotplug_slot)
-			goto error_slot;
-		slot->hotplug_slot = hotplug_slot;
+			goto error;
 
 		info = kzalloc(sizeof(*info), GFP_KERNEL);
 		if (!info)
 			goto error_hpslot;
-		hotplug_slot->info = info;
-
-		hotplug_slot->name = slot->name;
-
-		slot->hp_slot = i;
-		slot->ctrl = ctrl;
-		slot->bus = ctrl->pci_dev->subordinate->number;
-		slot->device = ctrl->slot_device_offset + i;
-		slot->hpc_ops = ctrl->hpc_ops;
-		slot->number = ctrl->first_slot;
-		mutex_init(&slot->lock);
-		INIT_DELAYED_WORK(&slot->work, pciehp_queue_pushbutton_work);
 
 		/* register this slot with the hotplug pci core */
+		hotplug_slot->info = info;
+		hotplug_slot->name = slot->name;
 		hotplug_slot->private = slot;
 		hotplug_slot->release = &release_slot;
-		make_slot_name(slot);
 		hotplug_slot->ops = &pciehp_hotplug_slot_ops;
-
 		get_power_status(hotplug_slot, &info->power_status);
 		get_attention_status(hotplug_slot, &info->attention_status);
 		get_latch_status(hotplug_slot, &info->latch_status);
 		get_adapter_status(hotplug_slot, &info->adapter_status);
+		slot->hotplug_slot = hotplug_slot;
 
 		dbg("Registering bus=%x dev=%x hp_slot=%x sun=%x "
 		    "slot_device_offset=%x\n", slot->bus, slot->device,
 		    slot->hp_slot, slot->number, ctrl->slot_device_offset);
-		retval = pci_hp_register(hotplug_slot);
+		retval = pci_hp_register(hotplug_slot,
+					 ctrl->pci_dev->subordinate,
+					 slot->device);
 		if (retval) {
 			err("pci_hp_register failed with error %d\n", retval);
 			if (retval == -EEXIST)
@@ -263,7 +233,7 @@ static int init_slots(struct controller *ctrl)
 		}
 		/* create additional sysfs entries */
 		if (EMI(ctrl)) {
-			retval = sysfs_create_file(&hotplug_slot->kobj,
+			retval = sysfs_create_file(&hotplug_slot->pci_slot->kobj,
 				&hotplug_slot_attr_lock.attr);
 			if (retval) {
 				pci_hp_deregister(hotplug_slot);
@@ -271,8 +241,6 @@ static int init_slots(struct controller *ctrl)
 				goto error_info;
 			}
 		}
-
-		list_add(&slot->slot_list, &ctrl->slot_list);
 	}
 
 	return 0;
@@ -280,27 +248,18 @@ error_info:
 	kfree(info);
 error_hpslot:
 	kfree(hotplug_slot);
-error_slot:
-	kfree(slot);
 error:
 	return retval;
 }
 
 static void cleanup_slots(struct controller *ctrl)
 {
-	struct list_head *tmp;
-	struct list_head *next;
 	struct slot *slot;
 
-	list_for_each_safe(tmp, next, &ctrl->slot_list) {
-		slot = list_entry(tmp, struct slot, slot_list);
-		list_del(&slot->slot_list);
+	list_for_each_entry(slot, &ctrl->slot_list, slot_list) {
 		if (EMI(ctrl))
-			sysfs_remove_file(&slot->hotplug_slot->kobj,
+			sysfs_remove_file(&slot->hotplug_slot->pci_slot->kobj,
 				&hotplug_slot_attr_lock.attr);
-		cancel_delayed_work(&slot->work);
-		flush_scheduled_work();
-		flush_workqueue(pciehp_wq);
 		pci_hp_deregister(slot->hotplug_slot);
 	}
 }
@@ -398,19 +357,8 @@ static int get_adapter_status(struct hotplug_slot *hotplug_slot, u8 *value)
 	return 0;
 }
 
-static int get_address(struct hotplug_slot *hotplug_slot, u32 *value)
-{
-	struct slot *slot = hotplug_slot->private;
-	struct pci_bus *bus = slot->ctrl->pci_dev->subordinate;
-
-	dbg("%s - physical_slot = %s\n", __func__, hotplug_slot->name);
-
-	*value = (pci_domain_nr(bus) << 16) | (slot->bus << 8) | slot->device;
-
-	return 0;
-}
-
-static int get_max_bus_speed(struct hotplug_slot *hotplug_slot, enum pci_bus_speed *value)
+static int get_max_bus_speed(struct hotplug_slot *hotplug_slot,
+				enum pci_bus_speed *value)
 {
 	struct slot *slot = hotplug_slot->private;
 	int retval;
@@ -444,34 +392,30 @@ static int pciehp_probe(struct pcie_device *dev, const struct pcie_port_service_
 	struct controller *ctrl;
 	struct slot *t_slot;
 	u8 value;
-	struct pci_dev *pdev;
+	struct pci_dev *pdev = dev->port;
 
-	ctrl = kzalloc(sizeof(*ctrl), GFP_KERNEL);
-	if (!ctrl) {
-		err("%s : out of memory\n", __func__);
+	if (pciehp_force)
+		dbg("Bypassing BIOS check for pciehp use on %s\n",
+		    pci_name(pdev));
+	else if (pciehp_get_hp_hw_control_from_firmware(pdev))
 		goto err_out_none;
-	}
-	INIT_LIST_HEAD(&ctrl->slot_list);
-
-	pdev = dev->port;
-	ctrl->pci_dev = pdev;
 
-	rc = pcie_init(ctrl, dev);
-	if (rc) {
+	ctrl = pcie_init(dev);
+	if (!ctrl) {
 		dbg("%s: controller initialization failed\n", PCIE_MODULE_NAME);
-		goto err_out_free_ctrl;
+		goto err_out_none;
 	}
-
-	pci_set_drvdata(pdev, ctrl);
-
-	dbg("%s: ctrl bus=0x%x, device=%x, function=%x, irq=%x\n",
-	    __func__, pdev->bus->number, PCI_SLOT(pdev->devfn),
-	    PCI_FUNC(pdev->devfn), pdev->irq);
+	set_service_data(dev, ctrl);
 
 	/* Setup the slot information structures */
 	rc = init_slots(ctrl);
 	if (rc) {
-		err("%s: slot initialization failed\n", PCIE_MODULE_NAME);
+		if (rc == -EBUSY)
+			warn("%s: slot already registered by another "
+				"hotplug driver\n", PCIE_MODULE_NAME);
+		else
+			err("%s: slot initialization failed\n",
+				PCIE_MODULE_NAME);
 		goto err_out_release_ctlr;
 	}
 
@@ -495,20 +439,16 @@ err_out_free_ctrl_slot:
 	cleanup_slots(ctrl);
 err_out_release_ctlr:
 	ctrl->hpc_ops->release_ctlr(ctrl);
-err_out_free_ctrl:
-	kfree(ctrl);
 err_out_none:
 	return -ENODEV;
 }
 
 static void pciehp_remove (struct pcie_device *dev)
 {
-	struct pci_dev *pdev = dev->port;
-	struct controller *ctrl = pci_get_drvdata(pdev);
+	struct controller *ctrl = get_service_data(dev);
 
 	cleanup_slots(ctrl);
 	ctrl->hpc_ops->release_ctlr(ctrl);
-	kfree(ctrl);
 }
 
 #ifdef CONFIG_PM
@@ -522,13 +462,12 @@ static int pciehp_resume (struct pcie_device *dev)
 {
 	printk("%s ENTRY\n", __func__);
 	if (pciehp_force) {
-		struct pci_dev *pdev = dev->port;
-		struct controller *ctrl = pci_get_drvdata(pdev);
+		struct controller *ctrl = get_service_data(dev);
 		struct slot *t_slot;
 		u8 status;
 
 		/* reinitialize the chipset's event detection logic */
-		pcie_init_hardware_part2(ctrl, dev);
+		pcie_enable_notification(ctrl);
 
 		t_slot = pciehp_find_slot(ctrl, ctrl->slot_device_offset);
 
diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c
index 79f10496316..1323a43285d 100644
--- a/drivers/pci/hotplug/pciehp_hpc.c
+++ b/drivers/pci/hotplug/pciehp_hpc.c
@@ -247,30 +247,32 @@ static inline void pciehp_free_irq(struct controller *ctrl)
 		free_irq(ctrl->pci_dev->irq, ctrl);
 }
 
-static inline int pcie_poll_cmd(struct controller *ctrl)
+static int pcie_poll_cmd(struct controller *ctrl)
 {
 	u16 slot_status;
 	int timeout = 1000;
 
-	if (!pciehp_readw(ctrl, SLOTSTATUS, &slot_status))
-		if (slot_status & CMD_COMPLETED)
-			goto completed;
-	for (timeout = 1000; timeout > 0; timeout -= 100) {
-		msleep(100);
-		if (!pciehp_readw(ctrl, SLOTSTATUS, &slot_status))
-			if (slot_status & CMD_COMPLETED)
-				goto completed;
+	if (!pciehp_readw(ctrl, SLOTSTATUS, &slot_status)) {
+		if (slot_status & CMD_COMPLETED) {
+			pciehp_writew(ctrl, SLOTSTATUS, CMD_COMPLETED);
+			return 1;
+		}
+	}
+	while (timeout > 1000) {
+		msleep(10);
+		timeout -= 10;
+		if (!pciehp_readw(ctrl, SLOTSTATUS, &slot_status)) {
+			if (slot_status & CMD_COMPLETED) {
+				pciehp_writew(ctrl, SLOTSTATUS, CMD_COMPLETED);
+				return 1;
+			}
+		}
 	}
 	return 0;	/* timeout */
-
-completed:
-	pciehp_writew(ctrl, SLOTSTATUS, CMD_COMPLETED);
-	return timeout;
 }
 
-static inline int pcie_wait_cmd(struct controller *ctrl, int poll)
+static void pcie_wait_cmd(struct controller *ctrl, int poll)
 {
-	int retval = 0;
 	unsigned int msecs = pciehp_poll_mode ? 2500 : 1000;
 	unsigned long timeout = msecs_to_jiffies(msecs);
 	int rc;
@@ -278,16 +280,9 @@ static inline int pcie_wait_cmd(struct controller *ctrl, int poll)
 	if (poll)
 		rc = pcie_poll_cmd(ctrl);
 	else
-		rc = wait_event_interruptible_timeout(ctrl->queue,
-					      !ctrl->cmd_busy, timeout);
+		rc = wait_event_timeout(ctrl->queue, !ctrl->cmd_busy, timeout);
 	if (!rc)
 		dbg("Command not completed in 1000 msec\n");
-	else if (rc < 0) {
-		retval = -EINTR;
-		info("Command was interrupted by a signal\n");
-	}
-
-	return retval;
 }
 
 /**
@@ -342,10 +337,6 @@ static int pcie_write_cmd(struct controller *ctrl, u16 cmd, u16 mask)
 
 	slot_ctrl &= ~mask;
 	slot_ctrl |= (cmd & mask);
-	/* Don't enable command completed if caller is changing it. */
-	if (!(mask & CMD_CMPL_INTR_ENABLE))
-		slot_ctrl |= CMD_CMPL_INTR_ENABLE;
-
 	ctrl->cmd_busy = 1;
 	smp_mb();
 	retval = pciehp_writew(ctrl, SLOTCTRL, slot_ctrl);
@@ -365,7 +356,7 @@ static int pcie_write_cmd(struct controller *ctrl, u16 cmd, u16 mask)
 		if (!(slot_ctrl & HP_INTR_ENABLE) ||
 		    !(slot_ctrl & CMD_CMPL_INTR_ENABLE))
 			poll = 1;
-                retval = pcie_wait_cmd(ctrl, poll);
+                pcie_wait_cmd(ctrl, poll);
 	}
  out:
 	mutex_unlock(&ctrl->ctrl_lock);
@@ -614,23 +605,6 @@ static void hpc_set_green_led_blink(struct slot *slot)
 	    __func__, ctrl->cap_base + SLOTCTRL, slot_cmd);
 }
 
-static void hpc_release_ctlr(struct controller *ctrl)
-{
-	/* Mask Hot-plug Interrupt Enable */
-	if (pcie_write_cmd(ctrl, 0, HP_INTR_ENABLE | CMD_CMPL_INTR_ENABLE))
-		err("%s: Cannot mask hotplut interrupt enable\n", __func__);
-
-	/* Free interrupt handler or interrupt polling timer */
-	pciehp_free_irq(ctrl);
-
-	/*
-	 * If this is the last controller to be released, destroy the
-	 * pciehp work queue
-	 */
-	if (atomic_dec_and_test(&pciehp_num_controllers))
-		destroy_workqueue(pciehp_wq);
-}
-
 static int hpc_power_on_slot(struct slot * slot)
 {
 	struct controller *ctrl = slot->ctrl;
@@ -785,7 +759,7 @@ static irqreturn_t pcie_isr(int irq, void *dev_id)
 		intr_loc |= detected;
 		if (!intr_loc)
 			return IRQ_NONE;
-		if (pciehp_writew(ctrl, SLOTSTATUS, detected)) {
+		if (detected && pciehp_writew(ctrl, SLOTSTATUS, detected)) {
 			err("%s: Cannot write to SLOTSTATUS\n", __func__);
 			return IRQ_NONE;
 		}
@@ -797,25 +771,13 @@ static irqreturn_t pcie_isr(int irq, void *dev_id)
 	if (intr_loc & CMD_COMPLETED) {
 		ctrl->cmd_busy = 0;
 		smp_mb();
-		wake_up_interruptible(&ctrl->queue);
+		wake_up(&ctrl->queue);
 	}
 
 	if (!(intr_loc & ~CMD_COMPLETED))
 		return IRQ_HANDLED;
 
-	/*
-	 * Return without handling events if this handler routine is
-	 * called before controller initialization is done. This may
-	 * happen if hotplug event or another interrupt that shares
-	 * the IRQ with pciehp arrives before slot initialization is
-	 * done after interrupt handler is registered.
-	 *
-	 * FIXME - Need more structural fixes. We need to be ready to
-	 * handle the event before installing interrupt handler.
-	 */
 	p_slot = pciehp_find_slot(ctrl, ctrl->slot_device_offset);
-	if (!p_slot || !p_slot->hpc_ops)
-		return IRQ_HANDLED;
 
 	/* Check MRL Sensor Changed */
 	if (intr_loc & MRL_SENS_CHANGED)
@@ -992,6 +954,7 @@ static int hpc_get_cur_lnk_width(struct slot *slot,
 	return retval;
 }
 
+static void pcie_release_ctrl(struct controller *ctrl);
 static struct hpc_ops pciehp_hpc_ops = {
 	.power_on_slot			= hpc_power_on_slot,
 	.power_off_slot			= hpc_power_off_slot,
@@ -1013,97 +976,11 @@ static struct hpc_ops pciehp_hpc_ops = {
 	.green_led_off			= hpc_set_green_led_off,
 	.green_led_blink		= hpc_set_green_led_blink,
 
-	.release_ctlr			= hpc_release_ctlr,
+	.release_ctlr			= pcie_release_ctrl,
 	.check_lnk_status		= hpc_check_lnk_status,
 };
 
-#ifdef CONFIG_ACPI
-static int pciehp_acpi_get_hp_hw_control_from_firmware(struct pci_dev *dev)
-{
-	acpi_status status;
-	acpi_handle chandle, handle = DEVICE_ACPI_HANDLE(&(dev->dev));
-	struct pci_dev *pdev = dev;
-	struct pci_bus *parent;
-	struct acpi_buffer string = { ACPI_ALLOCATE_BUFFER, NULL };
-
-	/*
-	 * Per PCI firmware specification, we should run the ACPI _OSC
-	 * method to get control of hotplug hardware before using it.
-	 * If an _OSC is missing, we look for an OSHP to do the same thing.
-	 * To handle different BIOS behavior, we look for _OSC and OSHP
-	 * within the scope of the hotplug controller and its parents, upto
-	 * the host bridge under which this controller exists.
-	 */
-	while (!handle) {
-		/*
-		 * This hotplug controller was not listed in the ACPI name
-		 * space at all. Try to get acpi handle of parent pci bus.
-		 */
-		if (!pdev || !pdev->bus->parent)
-			break;
-		parent = pdev->bus->parent;
-		dbg("Could not find %s in acpi namespace, trying parent\n",
-				pci_name(pdev));
-		if (!parent->self)
-			/* Parent must be a host bridge */
-			handle = acpi_get_pci_rootbridge_handle(
-					pci_domain_nr(parent),
-					parent->number);
-		else
-			handle = DEVICE_ACPI_HANDLE(
-					&(parent->self->dev));
-		pdev = parent->self;
-	}
-
-	while (handle) {
-		acpi_get_name(handle, ACPI_FULL_PATHNAME, &string);
-		dbg("Trying to get hotplug control for %s \n",
-			(char *)string.pointer);
-		status = pci_osc_control_set(handle,
-				OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL |
-				OSC_PCI_EXPRESS_NATIVE_HP_CONTROL);
-		if (status == AE_NOT_FOUND)
-			status = acpi_run_oshp(handle);
-		if (ACPI_SUCCESS(status)) {
-			dbg("Gained control for hotplug HW for pci %s (%s)\n",
-				pci_name(dev), (char *)string.pointer);
-			kfree(string.pointer);
-			return 0;
-		}
-		if (acpi_root_bridge(handle))
-			break;
-		chandle = handle;
-		status = acpi_get_parent(chandle, &handle);
-		if (ACPI_FAILURE(status))
-			break;
-	}
-
-	dbg("Cannot get control of hotplug hardware for pci %s\n",
-			pci_name(dev));
-
-	kfree(string.pointer);
-	return -1;
-}
-#endif
-
-static int pcie_init_hardware_part1(struct controller *ctrl,
-				    struct pcie_device *dev)
-{
-	/* Clear all remaining event bits in Slot Status register */
-	if (pciehp_writew(ctrl, SLOTSTATUS, 0x1f)) {
-		err("%s: Cannot write to SLOTSTATUS register\n", __func__);
-		return -1;
-	}
-
-	/* Mask Hot-plug Interrupt Enable */
-	if (pcie_write_cmd(ctrl, 0, HP_INTR_ENABLE | CMD_CMPL_INTR_ENABLE)) {
-		err("%s: Cannot mask hotplug interrupt enable\n", __func__);
-		return -1;
-	}
-	return 0;
-}
-
-int pcie_init_hardware_part2(struct controller *ctrl, struct pcie_device *dev)
+int pcie_enable_notification(struct controller *ctrl)
 {
 	u16 cmd, mask;
 
@@ -1115,30 +992,83 @@ int pcie_init_hardware_part2(struct controller *ctrl, struct pcie_device *dev)
 	if (MRL_SENS(ctrl))
 		cmd |= MRL_DETECT_ENABLE;
 	if (!pciehp_poll_mode)
-		cmd |= HP_INTR_ENABLE;
+		cmd |= HP_INTR_ENABLE | CMD_CMPL_INTR_ENABLE;
 
-	mask = PRSN_DETECT_ENABLE | ATTN_BUTTN_ENABLE |
-		PWR_FAULT_DETECT_ENABLE | MRL_DETECT_ENABLE | HP_INTR_ENABLE;
+	mask = PRSN_DETECT_ENABLE | ATTN_BUTTN_ENABLE | MRL_DETECT_ENABLE |
+	       PWR_FAULT_DETECT_ENABLE | HP_INTR_ENABLE | CMD_CMPL_INTR_ENABLE;
 
 	if (pcie_write_cmd(ctrl, cmd, mask)) {
 		err("%s: Cannot enable software notification\n", __func__);
-		goto abort;
+		return -1;
 	}
+	return 0;
+}
 
-	if (pciehp_force)
-		dbg("Bypassing BIOS check for pciehp use on %s\n",
-				pci_name(ctrl->pci_dev));
-	else if (pciehp_get_hp_hw_control_from_firmware(ctrl->pci_dev))
-		goto abort_disable_intr;
+static void pcie_disable_notification(struct controller *ctrl)
+{
+	u16 mask;
+	mask = PRSN_DETECT_ENABLE | ATTN_BUTTN_ENABLE | MRL_DETECT_ENABLE |
+	       PWR_FAULT_DETECT_ENABLE | HP_INTR_ENABLE | CMD_CMPL_INTR_ENABLE;
+	if (pcie_write_cmd(ctrl, 0, mask))
+		warn("%s: Cannot disable software notification\n", __func__);
+}
 
+static int pcie_init_notification(struct controller *ctrl)
+{
+	if (pciehp_request_irq(ctrl))
+		return -1;
+	if (pcie_enable_notification(ctrl)) {
+		pciehp_free_irq(ctrl);
+		return -1;
+	}
 	return 0;
+}
 
-	/* We end up here for the many possible ways to fail this API. */
-abort_disable_intr:
-	if (pcie_write_cmd(ctrl, 0, HP_INTR_ENABLE))
-		err("%s : disabling interrupts failed\n", __func__);
-abort:
-	return -1;
+static void pcie_shutdown_notification(struct controller *ctrl)
+{
+	pcie_disable_notification(ctrl);
+	pciehp_free_irq(ctrl);
+}
+
+static void make_slot_name(struct slot *slot)
+{
+	if (pciehp_slot_with_bus)
+		snprintf(slot->name, SLOT_NAME_SIZE, "%04d_%04d",
+			 slot->bus, slot->number);
+	else
+		snprintf(slot->name, SLOT_NAME_SIZE, "%d", slot->number);
+}
+
+static int pcie_init_slot(struct controller *ctrl)
+{
+	struct slot *slot;
+
+	slot = kzalloc(sizeof(*slot), GFP_KERNEL);
+	if (!slot)
+		return -ENOMEM;
+
+	slot->hp_slot = 0;
+	slot->ctrl = ctrl;
+	slot->bus = ctrl->pci_dev->subordinate->number;
+	slot->device = ctrl->slot_device_offset + slot->hp_slot;
+	slot->hpc_ops = ctrl->hpc_ops;
+	slot->number = ctrl->first_slot;
+	make_slot_name(slot);
+	mutex_init(&slot->lock);
+	INIT_DELAYED_WORK(&slot->work, pciehp_queue_pushbutton_work);
+	list_add(&slot->slot_list, &ctrl->slot_list);
+	return 0;
+}
+
+static void pcie_cleanup_slot(struct controller *ctrl)
+{
+	struct slot *slot;
+	slot = list_first_entry(&ctrl->slot_list, struct slot, slot_list);
+	list_del(&slot->slot_list);
+	cancel_delayed_work(&slot->work);
+	flush_scheduled_work();
+	flush_workqueue(pciehp_wq);
+	kfree(slot);
 }
 
 static inline void dbg_ctrl(struct controller *ctrl)
@@ -1176,15 +1106,23 @@ static inline void dbg_ctrl(struct controller *ctrl)
 	dbg("  Comamnd Completed    : %3s\n", NO_CMD_CMPL(ctrl)? "no" : "yes");
 	pciehp_readw(ctrl, SLOTSTATUS, &reg16);
 	dbg("Slot Status            : 0x%04x\n", reg16);
-	pciehp_readw(ctrl, SLOTSTATUS, &reg16);
+	pciehp_readw(ctrl, SLOTCTRL, &reg16);
 	dbg("Slot Control           : 0x%04x\n", reg16);
 }
 
-int pcie_init(struct controller *ctrl, struct pcie_device *dev)
+struct controller *pcie_init(struct pcie_device *dev)
 {
+	struct controller *ctrl;
 	u32 slot_cap;
 	struct pci_dev *pdev = dev->port;
 
+	ctrl = kzalloc(sizeof(*ctrl), GFP_KERNEL);
+	if (!ctrl) {
+		err("%s : out of memory\n", __func__);
+		goto abort;
+	}
+	INIT_LIST_HEAD(&ctrl->slot_list);
+
 	ctrl->pci_dev = pdev;
 	ctrl->cap_base = pci_find_capability(pdev, PCI_CAP_ID_EXP);
 	if (!ctrl->cap_base) {
@@ -1215,15 +1153,12 @@ int pcie_init(struct controller *ctrl, struct pcie_device *dev)
 	    !(POWER_CTRL(ctrl) | ATTN_LED(ctrl) | PWR_LED(ctrl) | EMI(ctrl)))
 	    ctrl->no_cmd_complete = 1;
 
-	info("HPC vendor_id %x device_id %x ss_vid %x ss_did %x\n",
-	     pdev->vendor, pdev->device,
-	     pdev->subsystem_vendor, pdev->subsystem_device);
+	/* Clear all remaining event bits in Slot Status register */
+	if (pciehp_writew(ctrl, SLOTSTATUS, 0x1f))
+		goto abort_ctrl;
 
-	if (pcie_init_hardware_part1(ctrl, dev))
-		goto abort;
-
-	if (pciehp_request_irq(ctrl))
-		goto abort;
+	/* Disable sotfware notification */
+	pcie_disable_notification(ctrl);
 
 	/*
 	 * If this is the first controller to be initialized,
@@ -1231,18 +1166,39 @@ int pcie_init(struct controller *ctrl, struct pcie_device *dev)
 	 */
 	if (atomic_add_return(1, &pciehp_num_controllers) == 1) {
 		pciehp_wq = create_singlethread_workqueue("pciehpd");
-		if (!pciehp_wq) {
-			goto abort_free_irq;
-		}
+		if (!pciehp_wq)
+			goto abort_ctrl;
 	}
 
-	if (pcie_init_hardware_part2(ctrl, dev))
-		goto abort_free_irq;
+	info("HPC vendor_id %x device_id %x ss_vid %x ss_did %x\n",
+	     pdev->vendor, pdev->device,
+	     pdev->subsystem_vendor, pdev->subsystem_device);
+
+	if (pcie_init_slot(ctrl))
+		goto abort_ctrl;
 
-	return 0;
+	if (pcie_init_notification(ctrl))
+		goto abort_slot;
 
-abort_free_irq:
-	pciehp_free_irq(ctrl);
+	return ctrl;
+
+abort_slot:
+	pcie_cleanup_slot(ctrl);
+abort_ctrl:
+	kfree(ctrl);
 abort:
-	return -1;
+	return NULL;
+}
+
+void pcie_release_ctrl(struct controller *ctrl)
+{
+	pcie_shutdown_notification(ctrl);
+	pcie_cleanup_slot(ctrl);
+	/*
+	 * If this is the last controller to be released, destroy the
+	 * pciehp work queue
+	 */
+	if (atomic_dec_and_test(&pciehp_num_controllers))
+		destroy_workqueue(pciehp_wq);
+	kfree(ctrl);
 }
diff --git a/drivers/pci/hotplug/rpadlpar_sysfs.c b/drivers/pci/hotplug/rpadlpar_sysfs.c
index 779c5db71be..a796301ea03 100644
--- a/drivers/pci/hotplug/rpadlpar_sysfs.c
+++ b/drivers/pci/hotplug/rpadlpar_sysfs.c
@@ -14,8 +14,10 @@
  */
 #include <linux/kobject.h>
 #include <linux/string.h>
+#include <linux/pci.h>
 #include <linux/pci_hotplug.h>
 #include "rpadlpar.h"
+#include "../pci.h"
 
 #define DLPAR_KOBJ_NAME       "control"
 
@@ -27,7 +29,6 @@
 
 #define MAX_DRC_NAME_LEN 64
 
-
 static ssize_t add_slot_store(struct kobject *kobj, struct kobj_attribute *attr,
 			      const char *buf, size_t nbytes)
 {
@@ -112,7 +113,7 @@ int dlpar_sysfs_init(void)
 	int error;
 
 	dlpar_kobj = kobject_create_and_add(DLPAR_KOBJ_NAME,
-					    &pci_hotplug_slots_kset->kobj);
+					    &pci_slots_kset->kobj);
 	if (!dlpar_kobj)
 		return -EINVAL;
 
diff --git a/drivers/pci/hotplug/rpaphp_slot.c b/drivers/pci/hotplug/rpaphp_slot.c
index 56197b600d3..9b714ea93d2 100644
--- a/drivers/pci/hotplug/rpaphp_slot.c
+++ b/drivers/pci/hotplug/rpaphp_slot.c
@@ -33,33 +33,6 @@
 #include <asm/rtas.h>
 #include "rpaphp.h"
 
-static ssize_t address_read_file (struct hotplug_slot *php_slot, char *buf)
-{
-	int retval;
-	struct slot *slot = (struct slot *)php_slot->private;
-	struct pci_bus *bus;
-
-	if (!slot)
-		return -ENOENT;
-
-	bus = slot->bus;
-	if (!bus)
-		return -ENOENT;
-
-	if (bus->self)
-		retval = sprintf(buf, pci_name(bus->self));
-	else
-		retval = sprintf(buf, "%04x:%02x:00.0",
-		        pci_domain_nr(bus), bus->number);
-
-	return retval;
-}
-
-static struct hotplug_slot_attribute php_attr_address = {
-	.attr = {.name = "address", .mode = S_IFREG | S_IRUGO},
-	.show = address_read_file,
-};
-
 /* free up the memory used by a slot */
 static void rpaphp_release_slot(struct hotplug_slot *hotplug_slot)
 {
@@ -135,9 +108,6 @@ int rpaphp_deregister_slot(struct slot *slot)
 
 	list_del(&slot->rpaphp_slot_list);
 	
-	/* remove "address" file */
-	sysfs_remove_file(&php_slot->kobj, &php_attr_address.attr);
-
 	retval = pci_hp_deregister(php_slot);
 	if (retval)
 		err("Problem unregistering a slot %s\n", slot->name);
@@ -151,6 +121,7 @@ int rpaphp_register_slot(struct slot *slot)
 {
 	struct hotplug_slot *php_slot = slot->hotplug_slot;
 	int retval;
+	int slotno;
 
 	dbg("%s registering slot:path[%s] index[%x], name[%s] pdomain[%x] type[%d]\n", 
 		__func__, slot->dn->full_name, slot->index, slot->name,
@@ -162,19 +133,16 @@ int rpaphp_register_slot(struct slot *slot)
 		return -EAGAIN;
 	}	
 
-	retval = pci_hp_register(php_slot);
+	if (slot->dn->child)
+		slotno = PCI_SLOT(PCI_DN(slot->dn->child)->devfn);
+	else
+		slotno = -1;
+	retval = pci_hp_register(php_slot, slot->bus, slotno);
 	if (retval) {
 		err("pci_hp_register failed with error %d\n", retval);
 		return retval;
 	}
 
-	/* create "address" file */
-	retval = sysfs_create_file(&php_slot->kobj, &php_attr_address.attr);
-	if (retval) {
-		err("sysfs_create_file failed with error %d\n", retval);
-		goto sysfs_fail;
-	}
-
 	/* add slot to our internal list */
 	list_add(&slot->rpaphp_slot_list, &rpaphp_slot_head);
 	info("Slot [%s] registered\n", slot->name);
diff --git a/drivers/pci/hotplug/sgi_hotplug.c b/drivers/pci/hotplug/sgi_hotplug.c
index 2fe37cd85b6..410fe0394a8 100644
--- a/drivers/pci/hotplug/sgi_hotplug.c
+++ b/drivers/pci/hotplug/sgi_hotplug.c
@@ -197,13 +197,15 @@ static int sn_hp_slot_private_alloc(struct hotplug_slot *bss_hotplug_slot,
 static struct hotplug_slot * sn_hp_destroy(void)
 {
 	struct slot *slot;
+	struct pci_slot *pci_slot;
 	struct hotplug_slot *bss_hotplug_slot = NULL;
 
 	list_for_each_entry(slot, &sn_hp_list, hp_list) {
 		bss_hotplug_slot = slot->hotplug_slot;
+		pci_slot = bss_hotplug_slot->pci_slot;
 		list_del(&((struct slot *)bss_hotplug_slot->private)->
 			 hp_list);
-		sysfs_remove_file(&bss_hotplug_slot->kobj,
+		sysfs_remove_file(&pci_slot->kobj,
 				  &sn_slot_path_attr.attr);
 		break;
 	}
@@ -614,6 +616,7 @@ static void sn_release_slot(struct hotplug_slot *bss_hotplug_slot)
 static int sn_hotplug_slot_register(struct pci_bus *pci_bus)
 {
 	int device;
+	struct pci_slot *pci_slot;
 	struct hotplug_slot *bss_hotplug_slot;
 	int rc = 0;
 
@@ -650,11 +653,12 @@ static int sn_hotplug_slot_register(struct pci_bus *pci_bus)
 		bss_hotplug_slot->ops = &sn_hotplug_slot_ops;
 		bss_hotplug_slot->release = &sn_release_slot;
 
-		rc = pci_hp_register(bss_hotplug_slot);
+		rc = pci_hp_register(bss_hotplug_slot, pci_bus, device);
 		if (rc)
 			goto register_err;
 
-		rc = sysfs_create_file(&bss_hotplug_slot->kobj,
+		pci_slot = bss_hotplug_slot->pci_slot;
+		rc = sysfs_create_file(&pci_slot->kobj,
 				       &sn_slot_path_attr.attr);
 		if (rc)
 			goto register_err;
@@ -664,7 +668,7 @@ static int sn_hotplug_slot_register(struct pci_bus *pci_bus)
 
 register_err:
 	dev_dbg(&pci_bus->self->dev, "bus failed to register with err = %d\n",
-	        rc);
+		rc);
 
 alloc_err:
 	if (rc == -ENOMEM)
diff --git a/drivers/pci/hotplug/shpchp.h b/drivers/pci/hotplug/shpchp.h
index f66e8d6315a..8a026f750de 100644
--- a/drivers/pci/hotplug/shpchp.h
+++ b/drivers/pci/hotplug/shpchp.h
@@ -170,6 +170,7 @@ extern void shpchp_queue_pushbutton_work(struct work_struct *work);
 extern int shpc_init( struct controller *ctrl, struct pci_dev *pdev);
 
 #ifdef CONFIG_ACPI
+#include <linux/pci-acpi.h>
 static inline int get_hp_params_from_firmware(struct pci_dev *dev,
 					      struct hotplug_params *hpp)
 {
@@ -177,14 +178,15 @@ static inline int get_hp_params_from_firmware(struct pci_dev *dev,
 			return -ENODEV;
 	return 0;
 }
-#define get_hp_hw_control_from_firmware(pdev)				\
-	do {								\
-		if (DEVICE_ACPI_HANDLE(&(pdev->dev)))			\
-			acpi_run_oshp(DEVICE_ACPI_HANDLE(&(pdev->dev)));\
-	} while (0)
+
+static inline int get_hp_hw_control_from_firmware(struct pci_dev *dev)
+{
+	u32 flags = OSC_SHPC_NATIVE_HP_CONTROL;
+	return acpi_get_hp_hw_control_from_firmware(dev, flags);
+}
 #else
 #define get_hp_params_from_firmware(dev, hpp) (-ENODEV)
-#define get_hp_hw_control_from_firmware(dev) do { } while (0)
+#define get_hp_hw_control_from_firmware(dev) (0)
 #endif
 
 struct ctrl_reg {
diff --git a/drivers/pci/hotplug/shpchp_core.c b/drivers/pci/hotplug/shpchp_core.c
index 97848654652..a8cbd039b85 100644
--- a/drivers/pci/hotplug/shpchp_core.c
+++ b/drivers/pci/hotplug/shpchp_core.c
@@ -39,7 +39,7 @@
 int shpchp_debug;
 int shpchp_poll_mode;
 int shpchp_poll_time;
-int shpchp_slot_with_bus;
+static int shpchp_slot_with_bus;
 struct workqueue_struct *shpchp_wq;
 
 #define DRIVER_VERSION	"0.4"
@@ -68,7 +68,6 @@ static int get_power_status	(struct hotplug_slot *slot, u8 *value);
 static int get_attention_status	(struct hotplug_slot *slot, u8 *value);
 static int get_latch_status	(struct hotplug_slot *slot, u8 *value);
 static int get_adapter_status	(struct hotplug_slot *slot, u8 *value);
-static int get_address		(struct hotplug_slot *slot, u32 *value);
 static int get_max_bus_speed	(struct hotplug_slot *slot, enum pci_bus_speed *value);
 static int get_cur_bus_speed	(struct hotplug_slot *slot, enum pci_bus_speed *value);
 
@@ -81,7 +80,6 @@ static struct hotplug_slot_ops shpchp_hotplug_slot_ops = {
 	.get_attention_status =	get_attention_status,
 	.get_latch_status =	get_latch_status,
 	.get_adapter_status =	get_adapter_status,
-	.get_address =		get_address,
 	.get_max_bus_speed =	get_max_bus_speed,
 	.get_cur_bus_speed =	get_cur_bus_speed,
 };
@@ -159,7 +157,8 @@ static int init_slots(struct controller *ctrl)
 		dbg("Registering bus=%x dev=%x hp_slot=%x sun=%x "
 		    "slot_device_offset=%x\n", slot->bus, slot->device,
 		    slot->hp_slot, slot->number, ctrl->slot_device_offset);
-		retval = pci_hp_register(slot->hotplug_slot);
+		retval = pci_hp_register(slot->hotplug_slot,
+				ctrl->pci_dev->subordinate, slot->device);
 		if (retval) {
 			err("pci_hp_register failed with error %d\n", retval);
 			if (retval == -EEXIST)
@@ -288,19 +287,8 @@ static int get_adapter_status (struct hotplug_slot *hotplug_slot, u8 *value)
 	return 0;
 }
 
-static int get_address (struct hotplug_slot *hotplug_slot, u32 *value)
-{
-	struct slot *slot = get_slot(hotplug_slot);
-	struct pci_bus *bus = slot->ctrl->pci_dev->subordinate;
-
-	dbg("%s - physical_slot = %s\n", __func__, hotplug_slot->name);
-
-	*value = (pci_domain_nr(bus) << 16) | (slot->bus << 8) | slot->device;
-
-	return 0;
-}
-
-static int get_max_bus_speed (struct hotplug_slot *hotplug_slot, enum pci_bus_speed *value)
+static int get_max_bus_speed(struct hotplug_slot *hotplug_slot,
+				enum pci_bus_speed *value)
 {
 	struct slot *slot = get_slot(hotplug_slot);
 	int retval;
@@ -330,13 +318,14 @@ static int get_cur_bus_speed (struct hotplug_slot *hotplug_slot, enum pci_bus_sp
 
 static int is_shpc_capable(struct pci_dev *dev)
 {
-       if ((dev->vendor == PCI_VENDOR_ID_AMD) || (dev->device ==
-                               PCI_DEVICE_ID_AMD_GOLAM_7450))
-               return 1;
-       if (pci_find_capability(dev, PCI_CAP_ID_SHPC))
-               return 1;
-
-       return 0;
+	if ((dev->vendor == PCI_VENDOR_ID_AMD) || (dev->device ==
+						PCI_DEVICE_ID_AMD_GOLAM_7450))
+		return 1;
+	if (!pci_find_capability(dev, PCI_CAP_ID_SHPC))
+		return 0;
+	if (get_hp_hw_control_from_firmware(dev))
+		return 0;
+	return 1;
 }
 
 static int shpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
diff --git a/drivers/pci/hotplug/shpchp_hpc.c b/drivers/pci/hotplug/shpchp_hpc.c
index 7d770b2cd88..7a0bff364cd 100644
--- a/drivers/pci/hotplug/shpchp_hpc.c
+++ b/drivers/pci/hotplug/shpchp_hpc.c
@@ -1084,7 +1084,6 @@ int shpc_init(struct controller *ctrl, struct pci_dev *pdev)
 	dbg("%s: HPC at b:d:f:irq=0x%x:%x:%x:%x\n", __func__,
 			pdev->bus->number, PCI_SLOT(pdev->devfn),
 			PCI_FUNC(pdev->devfn), pdev->irq);
-	get_hp_hw_control_from_firmware(pdev);
 
 	/*
 	 * If this is the first controller to be initialized,