Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6

* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6: (49 commits)
  [PATCH] acpiphp: fix acpi_path_name
  [PATCH] ibmphp: remove TRUE and FALSE
  [PATCH] PCI Hotplug: add common acpi functions to core
  [PATCH] PCI: kzalloc() conversion in drivers/pci
  [PATCH] acpiphp: Scan slots under the nested P2P bridge
  [PATCH] PCI Hotplug: SN: Fix cleanup on hotplug removal of PPB
  [PATCH] shpchp: cleanup bus speed handling
  [PATCH] PCI: fix pci_request_region[s] arg
  [PATCH] PCI: Provide a boot parameter to disable MSI
  [PATCH] PCI: the scheduled removal of PCI_LEGACY_PROC
  [PATCH] PCI: cpqphp_ctrl.c: board_replaced(): remove dead code
  [PATCH] acpiphp: fix bridge handle
  [PATCH] acpiphp - slot management fix - V4
  [PATCH] acpi: remove dock event handling from ibm_acpi
  [PATCH] acpiphp: add dock event handling
  [PATCH] acpi: export acpi_bus_trim
  [PATCH] acpiphp: add new bus to acpi
  [PATCH] PCI: Move pci_dev_put outside a spinlock
  [PATCH] PCI: PCI/Cardbus cards hidden, needs pci=assign-busses to fix
  [PATCH] PCI: fix problems with MSI-X on ia64
  ...

50 files changed, 2094 insertions, 2525 deletions

diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 33e2ca847a2..82710ae3922 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -205,6 +205,18 @@ config ACPI_IBM
 
 	  If you have an IBM ThinkPad laptop, say Y or M here.
 
+config ACPI_IBM_DOCK
+	bool "Legacy Docking Station Support"
+	depends on ACPI_IBM
+	default n
+	---help---
+	  Allows the ibm_acpi driver to handle docking station events.
+	  This support is obsoleted by CONFIG_HOTPLUG_PCI_ACPI.  It will
+	  allow locking and removing the laptop from the docking station,
+	  but will not properly connect PCI devices.
+
+	  If you are not sure, say N here.
+
 config ACPI_TOSHIBA
 	tristate "Toshiba Laptop Extras"
 	depends on X86
diff --git a/drivers/acpi/ibm_acpi.c b/drivers/acpi/ibm_acpi.c
index 5cc090326dd..262b1f41335 100644
--- a/drivers/acpi/ibm_acpi.c
+++ b/drivers/acpi/ibm_acpi.c
@@ -160,13 +160,13 @@ IBM_HANDLE(cmos, root, "\\UCMS",	/* R50, R50e, R50p, R51, T4x, X31, X40 */
 	   "\\CMOS",		/* A3x, G4x, R32, T23, T30, X22-24, X30 */
 	   "\\CMS",		/* R40, R40e */
     );				/* all others */
-
+#ifdef CONFIG_ACPI_IBM_DOCK
 IBM_HANDLE(dock, root, "\\_SB.GDCK",	/* X30, X31, X40 */
 	   "\\_SB.PCI0.DOCK",	/* 600e/x,770e,770x,A2xm/p,T20-22,X20-21 */
 	   "\\_SB.PCI0.PCI1.DOCK",	/* all others */
 	   "\\_SB.PCI.ISA.SLCE",	/* 570 */
     );				/* A21e,G4x,R30,R31,R32,R40,R40e,R50e */
-
+#endif
 IBM_HANDLE(bay, root, "\\_SB.PCI.IDE.SECN.MAST",	/* 570 */
 	   "\\_SB.PCI0.IDE0.IDES.IDSM",	/* 600e/x, 770e, 770x */
 	   "\\_SB.PCI0.IDE0.SCND.MSTR",	/* all others */
@@ -844,7 +844,7 @@ static int _sta(acpi_handle handle)
 
 	return status;
 }
-
+#ifdef CONFIG_ACPI_IBM_DOCK
 #define dock_docked() (_sta(dock_handle) & 1)
 
 static int dock_read(char *p)
@@ -907,6 +907,7 @@ static void dock_notify(struct ibm_struct *ibm, u32 event)
 		acpi_bus_generate_event(ibm->device, event, 0);	/* unknown */
 	}
 }
+#endif
 
 static int bay_status_supported;
 static int bay_status2_supported;
@@ -1574,6 +1575,7 @@ static struct ibm_struct ibms[] = {
 	 .read = light_read,
 	 .write = light_write,
 	 },
+#ifdef CONFIG_ACPI_IBM_DOCK
 	{
 	 .name = "dock",
 	 .read = dock_read,
@@ -1589,6 +1591,7 @@ static struct ibm_struct ibms[] = {
 	 .handle = &pci_handle,
 	 .type = ACPI_SYSTEM_NOTIFY,
 	 },
+#endif
 	{
 	 .name = "bay",
 	 .init = bay_init,
@@ -1880,7 +1883,9 @@ IBM_PARAM(hotkey);
 IBM_PARAM(bluetooth);
 IBM_PARAM(video);
 IBM_PARAM(light);
+#ifdef CONFIG_ACPI_IBM_DOCK
 IBM_PARAM(dock);
+#endif
 IBM_PARAM(bay);
 IBM_PARAM(cmos);
 IBM_PARAM(led);
@@ -1927,7 +1932,9 @@ static int __init acpi_ibm_init(void)
 	IBM_HANDLE_INIT(hkey);
 	IBM_HANDLE_INIT(lght);
 	IBM_HANDLE_INIT(cmos);
+#ifdef CONFIG_ACPI_IBM_DOCK
 	IBM_HANDLE_INIT(dock);
+#endif
 	IBM_HANDLE_INIT(pci);
 	IBM_HANDLE_INIT(bay);
 	if (bay_handle)
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 9271e5209ac..a0ab828b2cc 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -23,7 +23,6 @@ static LIST_HEAD(acpi_device_list);
 DEFINE_SPINLOCK(acpi_device_lock);
 LIST_HEAD(acpi_wakeup_device_list);
 
-static int acpi_bus_trim(struct acpi_device *start, int rmdevice);
 
 static void acpi_device_release(struct kobject *kobj)
 {
@@ -1284,7 +1283,7 @@ int acpi_bus_start(struct acpi_device *device)
 
 EXPORT_SYMBOL(acpi_bus_start);
 
-static int acpi_bus_trim(struct acpi_device *start, int rmdevice)
+int acpi_bus_trim(struct acpi_device *start, int rmdevice)
 {
 	acpi_status status;
 	struct acpi_device *parent, *child;
@@ -1337,6 +1336,8 @@ static int acpi_bus_trim(struct acpi_device *start, int rmdevice)
 	}
 	return err;
 }
+EXPORT_SYMBOL_GPL(acpi_bus_trim);
+
 
 static int acpi_bus_scan_fixed(struct acpi_device *root)
 {
diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig
index f187fd8aeed..4d762fc4878 100644
--- a/drivers/pci/Kconfig
+++ b/drivers/pci/Kconfig
@@ -11,24 +11,11 @@ config PCI_MSI
 	   generate an interrupt using an inbound Memory Write on its
 	   PCI bus instead of asserting a device IRQ pin.
 
-	   If you don't know what to do here, say N.
-
-config PCI_LEGACY_PROC
-	bool "Legacy /proc/pci interface"
-	depends on PCI
-	---help---
-	  This feature enables a procfs file -- /proc/pci -- that provides a 
-	  summary of PCI devices in the system. 
-
-	  This feature has been deprecated as of v2.5.53, in favor of using the 
-	  tool lspci(8). This feature may be removed at a future date. 
+	   Use of PCI MSI interrupts can be disabled at kernel boot time
+	   by using the 'pci=nomsi' option.  This disables MSI for the
+	   entire system.
 
-	  lspci can provide the same data, as well as much more. lspci is a part of
-	  the pci-utils package, which should be installed by your distribution. 
-	  See <file:Documentation/Changes> for information on where to get the latest
-	  version. 
-
-	  When in doubt, say N.
+	   If you don't know what to do here, say N.
 
 config PCI_DEBUG
 	bool "PCI Debugging"
diff --git a/drivers/pci/hotplug/Makefile b/drivers/pci/hotplug/Makefile
index 3c71e3077ff..421cfffb175 100644
--- a/drivers/pci/hotplug/Makefile
+++ b/drivers/pci/hotplug/Makefile
@@ -22,6 +22,9 @@ ifdef CONFIG_HOTPLUG_PCI_CPCI
 pci_hotplug-objs	+=	cpci_hotplug_core.o	\
 				cpci_hotplug_pci.o
 endif
+ifdef CONFIG_ACPI
+pci_hotplug-objs 	+= 	acpi_pcihp.o
+endif
 
 cpqphp-objs		:=	cpqphp_core.o	\
 				cpqphp_ctrl.o	\
@@ -37,7 +40,8 @@ ibmphp-objs		:=	ibmphp_core.o	\
 				ibmphp_hpc.o
 
 acpiphp-objs		:=	acpiphp_core.o	\
-				acpiphp_glue.o
+				acpiphp_glue.o  \
+				acpiphp_dock.o
 
 rpaphp-objs		:=	rpaphp_core.o	\
 				rpaphp_pci.o	\
@@ -50,23 +54,9 @@ pciehp-objs		:=	pciehp_core.o	\
 				pciehp_ctrl.o	\
 				pciehp_pci.o	\
 				pciehp_hpc.o
-ifdef CONFIG_ACPI
-	pciehp-objs += pciehprm_acpi.o
-else
-	pciehp-objs += pciehprm_nonacpi.o
-endif
 
 shpchp-objs		:=	shpchp_core.o	\
 				shpchp_ctrl.o	\
 				shpchp_pci.o	\
 				shpchp_sysfs.o	\
 				shpchp_hpc.o
-ifdef CONFIG_ACPI
-	shpchp-objs += shpchprm_acpi.o
-else
-	ifdef CONFIG_HOTPLUG_PCI_SHPC_PHPRM_LEGACY
-		shpchp-objs += shpchprm_legacy.o
-	else
-		shpchp-objs += shpchprm_nonacpi.o
-	endif
-endif
diff --git a/drivers/pci/hotplug/shpchprm_acpi.c b/drivers/pci/hotplug/acpi_pcihp.c
index 17145e52223..39af9c325f3 100644
--- a/drivers/pci/hotplug/shpchprm_acpi.c
+++ b/drivers/pci/hotplug/acpi_pcihp.c
@@ -1,7 +1,7 @@
 /*
- * SHPCHPRM ACPI: PHP Resource Manager for ACPI platform
+ * Common ACPI functions for hot plug platforms
  *
- * Copyright (C) 2003-2004 Intel Corporation
+ * Copyright (C) 2006 Intel Corporation
  *
  * All rights reserved.
  *
@@ -31,26 +31,12 @@
 #include <acpi/acpi.h>
 #include <acpi/acpi_bus.h>
 #include <acpi/actypes.h>
-#include "shpchp.h"
+#include "pci_hotplug.h"
 
 #define	METHOD_NAME__SUN	"_SUN"
 #define	METHOD_NAME__HPP	"_HPP"
 #define	METHOD_NAME_OSHP	"OSHP"
 
-static u8 * acpi_path_name( acpi_handle	handle)
-{
-	acpi_status		status;
-	static u8	path_name[ACPI_PATHNAME_MAX];
-	struct acpi_buffer		ret_buf = { ACPI_PATHNAME_MAX, path_name };
-
-	memset(path_name, 0, sizeof (path_name));
-	status = acpi_get_name(handle, ACPI_FULL_PATHNAME, &ret_buf);
-
-	if (ACPI_FAILURE(status))
-		return NULL;
-	else
-		return path_name;	
-}
 
 static acpi_status
 acpi_run_hpp(acpi_handle handle, struct hotplug_params *hpp)
@@ -58,18 +44,21 @@ acpi_run_hpp(acpi_handle handle, struct hotplug_params *hpp)
 	acpi_status		status;
 	u8			nui[4];
 	struct acpi_buffer	ret_buf = { 0, NULL};
+	struct acpi_buffer	string = { ACPI_ALLOCATE_BUFFER, NULL };
 	union acpi_object	*ext_obj, *package;
-	u8			*path_name = acpi_path_name(handle);
 	int			i, len = 0;
 
+	acpi_get_name(handle, ACPI_FULL_PATHNAME, &string);
+
 	/* get _hpp */
 	status = acpi_evaluate_object(handle, METHOD_NAME__HPP, NULL, &ret_buf);
 	switch (status) {
 	case AE_BUFFER_OVERFLOW:
 		ret_buf.pointer = kmalloc (ret_buf.length, GFP_KERNEL);
 		if (!ret_buf.pointer) {
-			err ("%s:%s alloc for _HPP fail\n", __FUNCTION__,
-					path_name);
+			printk(KERN_ERR "%s:%s alloc for _HPP fail\n",
+				__FUNCTION__, (char *)string.pointer);
+			acpi_os_free(string.pointer);
 			return AE_NO_MEMORY;
 		}
 		status = acpi_evaluate_object(handle, METHOD_NAME__HPP,
@@ -78,16 +67,17 @@ acpi_run_hpp(acpi_handle handle, struct hotplug_params *hpp)
 			break;
 	default:
 		if (ACPI_FAILURE(status)) {
-			dbg("%s:%s _HPP fail=0x%x\n", __FUNCTION__,
-					path_name, status);
+			pr_debug("%s:%s _HPP fail=0x%x\n", __FUNCTION__,
+				(char *)string.pointer, status);
+			acpi_os_free(string.pointer);
 			return status;
 		}
 	}
 
 	ext_obj = (union acpi_object *) ret_buf.pointer;
 	if (ext_obj->type != ACPI_TYPE_PACKAGE) {
-		err ("%s:%s _HPP obj not a package\n", __FUNCTION__,
-				path_name);
+		printk(KERN_ERR "%s:%s _HPP obj not a package\n", __FUNCTION__,
+				(char *)string.pointer);
 		status = AE_ERROR;
 		goto free_and_return;
 	}
@@ -101,8 +91,8 @@ acpi_run_hpp(acpi_handle handle, struct hotplug_params *hpp)
 			nui[i] = (u8)ext_obj->integer.value;
 			break;
 		default:
-			err ("%s:%s _HPP obj type incorrect\n", __FUNCTION__,
-					path_name);
+			printk(KERN_ERR "%s:%s _HPP obj type incorrect\n",
+				__FUNCTION__, (char *)string.pointer);
 			status = AE_ERROR;
 			goto free_and_return;
 		}
@@ -113,54 +103,52 @@ acpi_run_hpp(acpi_handle handle, struct hotplug_params *hpp)
 	hpp->enable_serr = nui[2];
 	hpp->enable_perr = nui[3];
 
-	dbg("  _HPP: cache_line_size=0x%x\n", hpp->cache_line_size);
-	dbg("  _HPP: latency timer  =0x%x\n", hpp->latency_timer);
-	dbg("  _HPP: enable SERR    =0x%x\n", hpp->enable_serr);
-	dbg("  _HPP: enable PERR    =0x%x\n", hpp->enable_perr);
+	pr_debug("  _HPP: cache_line_size=0x%x\n", hpp->cache_line_size);
+	pr_debug("  _HPP: latency timer  =0x%x\n", hpp->latency_timer);
+	pr_debug("  _HPP: enable SERR    =0x%x\n", hpp->enable_serr);
+	pr_debug("  _HPP: enable PERR    =0x%x\n", hpp->enable_perr);
 
 free_and_return:
-	kfree(ret_buf.pointer);
+	acpi_os_free(string.pointer);
+	acpi_os_free(ret_buf.pointer);
 	return status;
 }
 
-static void acpi_run_oshp(acpi_handle handle)
+
+
+/* acpi_run_oshp - get control of hotplug from the firmware
+ *
+ * @handle - the handle of the hotplug controller.
+ */
+acpi_status acpi_run_oshp(acpi_handle handle)
 {
 	acpi_status		status;
-	u8			*path_name = acpi_path_name(handle);
+	struct acpi_buffer	string = { ACPI_ALLOCATE_BUFFER, NULL };
+
+	acpi_get_name(handle, ACPI_FULL_PATHNAME, &string);
 
 	/* run OSHP */
 	status = acpi_evaluate_object(handle, METHOD_NAME_OSHP, NULL, NULL);
-	if (ACPI_FAILURE(status)) {
-		err("%s:%s OSHP fails=0x%x\n", __FUNCTION__, path_name,
-				status);
-	} else {
-		dbg("%s:%s OSHP passes\n", __FUNCTION__, path_name);
-	}
-}
-
-int shpchprm_get_physical_slot_number(struct controller *ctrl, u32 *sun, u8 busnum, u8 devnum)
-{
-	int offset = devnum - ctrl->slot_device_offset;
+	if (ACPI_FAILURE(status))
+		printk(KERN_ERR "%s:%s OSHP fails=0x%x\n", __FUNCTION__,
+			(char *)string.pointer, status);
+	else
+		pr_debug("%s:%s OSHP passes\n", __FUNCTION__,
+			(char *)string.pointer);
 
-	dbg("%s: ctrl->slot_num_inc %d, offset %d\n", __FUNCTION__, ctrl->slot_num_inc, offset);
-	*sun = (u8) (ctrl->first_slot + ctrl->slot_num_inc *offset);
-	return 0;
+	acpi_os_free(string.pointer);
+	return status;
 }
+EXPORT_SYMBOL_GPL(acpi_run_oshp);
+
 
-void get_hp_hw_control_from_firmware(struct pci_dev *dev)
-{
-	/*
-	 * OSHP is an optional ACPI firmware control method. If present,
-	 * we need to run it to inform BIOS that we will control SHPC
-	 * hardware from now on.
-	 */
-	acpi_handle handle = DEVICE_ACPI_HANDLE(&(dev->dev));
-	if (!handle)
-		return;
-	acpi_run_oshp(handle);
-}
 
-void get_hp_params_from_firmware(struct pci_dev *dev,
+/* acpi_get_hp_params_from_firmware
+ *
+ * @dev - the pci_dev of the newly added device
+ * @hpp - allocated by the caller
+ */
+acpi_status acpi_get_hp_params_from_firmware(struct pci_dev *dev,
 		struct hotplug_params *hpp)
 {
 	acpi_status status = AE_NOT_FOUND;
@@ -182,5 +170,42 @@ void get_hp_params_from_firmware(struct pci_dev *dev,
 		/* Check if a parent object supports _HPP */
 		pdev = pdev->bus->parent->self;
 	}
+	return status;
 }
+EXPORT_SYMBOL_GPL(acpi_get_hp_params_from_firmware);
 
+
+/* acpi_root_bridge - check to see if this acpi object is a root bridge
+ *
+ * @handle - the acpi object in question.
+ */
+int acpi_root_bridge(acpi_handle handle)
+{
+	acpi_status status;
+	struct acpi_device_info *info;
+	struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL};
+	int i;
+
+	status = acpi_get_object_info(handle, &buffer);
+	if (ACPI_SUCCESS(status)) {
+		info = buffer.pointer;
+		if ((info->valid & ACPI_VALID_HID) &&
+			!strcmp(PCI_ROOT_HID_STRING,
+					info->hardware_id.value)) {
+			acpi_os_free(buffer.pointer);
+			return 1;
+		}
+		if (info->valid & ACPI_VALID_CID) {
+			for (i=0; i < info->compatibility_id.count; i++) {
+				if (!strcmp(PCI_ROOT_HID_STRING,
+					info->compatibility_id.id[i].value)) {
+					acpi_os_free(buffer.pointer);
+					return 1;
+				}
+			}
+		}
+		acpi_os_free(buffer.pointer);
+	}
+	return 0;
+}
+EXPORT_SYMBOL_GPL(acpi_root_bridge);
diff --git a/drivers/pci/hotplug/acpiphp.h b/drivers/pci/hotplug/acpiphp.h
index 293603e1b7c..467ac70a46f 100644
--- a/drivers/pci/hotplug/acpiphp.h
+++ b/drivers/pci/hotplug/acpiphp.h
@@ -37,6 +37,7 @@
 
 #include <linux/acpi.h>
 #include <linux/kobject.h>	/* for KOBJ_NAME_LEN */
+#include <linux/mutex.h>
 #include "pci_hotplug.h"
 
 #define dbg(format, arg...)					\
@@ -59,26 +60,10 @@ struct acpiphp_slot;
  * struct slot - slot information for each *physical* slot
  */
 struct slot {
-	u8 number;
 	struct hotplug_slot	*hotplug_slot;
-	struct list_head	slot_list;
-
 	struct acpiphp_slot	*acpi_slot;
 };
 
-/**
- * struct hpp_param - ACPI 2.0 _HPP Hot Plug Parameters
- * @cache_line_size in DWORD
- * @latency_timer in PCI clock
- * @enable_SERR 0 or 1
- * @enable_PERR 0 or 1
- */
-struct hpp_param {
-	u8 cache_line_size;
-	u8 latency_timer;
-	u8 enable_SERR;
-	u8 enable_PERR;
-};
 
 
 /**
@@ -102,7 +87,7 @@ struct acpiphp_bridge {
 	struct pci_dev *pci_dev;
 
 	/* ACPI 2.0 _HPP parameters */
-	struct hpp_param hpp;
+	struct hotplug_params hpp;
 
 	spinlock_t res_lock;
 };
@@ -118,9 +103,9 @@ struct acpiphp_slot {
 	struct acpiphp_bridge *bridge;	/* parent */
 	struct list_head funcs;		/* one slot may have different
 					   objects (i.e. for each function) */
-	struct semaphore crit_sect;
+	struct slot *slot;
+	struct mutex crit_sect;
 
-	u32		id;		/* slot id (serial #) for hotplug core */
 	u8		device;		/* pci device# */
 
 	u32		sun;		/* ACPI _SUN (slot unique number) */
@@ -160,6 +145,25 @@ struct acpiphp_attention_info
 	struct module *owner;
 };
 
+
+struct dependent_device {
+	struct list_head device_list;
+	struct list_head pci_list;
+	acpi_handle handle;
+	struct acpiphp_func *func;
+};
+
+
+struct acpiphp_dock_station {
+	acpi_handle handle;
+	u32 last_dock_time;
+	u32 flags;
+	struct acpiphp_func *dock_bridge;
+	struct list_head dependent_devices;
+	struct list_head pci_dependent_devices;
+};
+
+
 /* PCI bus bridge HID */
 #define ACPI_PCI_HOST_HID		"PNP0A03"
 
@@ -197,19 +201,27 @@ struct acpiphp_attention_info
 #define FUNC_HAS_PS1		(0x00000020)
 #define FUNC_HAS_PS2		(0x00000040)
 #define FUNC_HAS_PS3		(0x00000080)
+#define FUNC_HAS_DCK            (0x00000100)
+#define FUNC_IS_DD              (0x00000200)
+
+/* dock station flags */
+#define DOCK_DOCKING            (0x00000001)
+#define DOCK_HAS_BRIDGE         (0x00000002)
 
 /* function prototypes */
 
 /* acpiphp_core.c */
 extern int acpiphp_register_attention(struct acpiphp_attention_info*info);
 extern int acpiphp_unregister_attention(struct acpiphp_attention_info *info);
+extern int acpiphp_register_hotplug_slot(struct acpiphp_slot *slot);
+extern void acpiphp_unregister_hotplug_slot(struct acpiphp_slot *slot);
 
 /* acpiphp_glue.c */
 extern int acpiphp_glue_init (void);
 extern void acpiphp_glue_exit (void);
 extern int acpiphp_get_num_slots (void);
-extern struct acpiphp_slot *get_slot_from_id (int id);
 typedef int (*acpiphp_callback)(struct acpiphp_slot *slot, void *data);
+void handle_hotplug_event_func(acpi_handle, u32, void*);
 
 extern int acpiphp_enable_slot (struct acpiphp_slot *slot);
 extern int acpiphp_disable_slot (struct acpiphp_slot *slot);
@@ -219,6 +231,16 @@ 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);
 
+/* acpiphp_dock.c */
+extern int find_dock_station(void);
+extern void remove_dock_station(void);
+extern void add_dependent_device(struct dependent_device *new_dd);
+extern void add_pci_dependent_device(struct dependent_device *new_dd);
+extern struct dependent_device *get_dependent_device(acpi_handle handle);
+extern int is_dependent_device(acpi_handle handle);
+extern int detect_dependent_devices(acpi_handle *bridge_handle);
+extern struct dependent_device *alloc_dependent_device(acpi_handle handle);
+
 /* variables */
 extern int acpiphp_debug;
 
diff --git a/drivers/pci/hotplug/acpiphp_core.c b/drivers/pci/hotplug/acpiphp_core.c
index 60c4c38047a..4f1b0da8e47 100644
--- a/drivers/pci/hotplug/acpiphp_core.c
+++ b/drivers/pci/hotplug/acpiphp_core.c
@@ -44,8 +44,6 @@
 #include "pci_hotplug.h"
 #include "acpiphp.h"
 
-static LIST_HEAD(slot_list);
-
 #define MY_NAME	"acpiphp"
 
 static int debug;
@@ -341,62 +339,53 @@ static void release_slot(struct hotplug_slot *hotplug_slot)
 	kfree(slot);
 }
 
-/**
- * init_slots - initialize 'struct slot' structures for each slot
- *
- */
-static int __init init_slots(void)
+/* callback routine to initialize 'struct slot' for each slot */
+int acpiphp_register_hotplug_slot(struct acpiphp_slot *acpiphp_slot)
 {
 	struct slot *slot;
+	struct hotplug_slot *hotplug_slot;
+	struct hotplug_slot_info *hotplug_slot_info;
 	int retval = -ENOMEM;
-	int i;
-
-	for (i = 0; i < num_slots; ++i) {
-		slot = kmalloc(sizeof(struct slot), GFP_KERNEL);
-		if (!slot)
-			goto error;
-		memset(slot, 0, sizeof(struct slot));
-
-		slot->hotplug_slot = kmalloc(sizeof(struct hotplug_slot), GFP_KERNEL);
-		if (!slot->hotplug_slot)
-			goto error_slot;
-		memset(slot->hotplug_slot, 0, sizeof(struct hotplug_slot));
-
-		slot->hotplug_slot->info = kmalloc(sizeof(struct hotplug_slot_info), GFP_KERNEL);
-		if (!slot->hotplug_slot->info)
-			goto error_hpslot;
-		memset(slot->hotplug_slot->info, 0, sizeof(struct hotplug_slot_info));
-
-		slot->hotplug_slot->name = kmalloc(SLOT_NAME_SIZE, GFP_KERNEL);
-		if (!slot->hotplug_slot->name)
-			goto error_info;
-
-		slot->number = i;
-
-		slot->hotplug_slot->private = slot;
-		slot->hotplug_slot->release = &release_slot;
-		slot->hotplug_slot->ops = &acpi_hotplug_slot_ops;
-
-		slot->acpi_slot = get_slot_from_id(i);
-		slot->hotplug_slot->info->power_status = acpiphp_get_power_status(slot->acpi_slot);
-		slot->hotplug_slot->info->attention_status = 0;
-		slot->hotplug_slot->info->latch_status = acpiphp_get_latch_status(slot->acpi_slot);
-		slot->hotplug_slot->info->adapter_status = acpiphp_get_adapter_status(slot->acpi_slot);
-		slot->hotplug_slot->info->max_bus_speed = PCI_SPEED_UNKNOWN;
-		slot->hotplug_slot->info->cur_bus_speed = PCI_SPEED_UNKNOWN;
-
-		make_slot_name(slot);
-
-		retval = pci_hp_register(slot->hotplug_slot);
-		if (retval) {
-			err("pci_hp_register failed with error %d\n", retval);
-			goto error_name;
-		}
-
-		/* add slot to our internal list */
-		list_add(&slot->slot_list, &slot_list);
-		info("Slot [%s] registered\n", slot->hotplug_slot->name);
-	}
+
+	slot = kzalloc(sizeof(*slot), GFP_KERNEL);
+	if (!slot)
+		goto error;
+
+	slot->hotplug_slot = kzalloc(sizeof(*hotplug_slot), GFP_KERNEL);
+	if (!slot->hotplug_slot)
+		goto error_slot;
+
+	slot->hotplug_slot->info = kzalloc(sizeof(*hotplug_slot_info),
+					   GFP_KERNEL);
+	if (!slot->hotplug_slot->info)
+		goto error_hpslot;
+
+	slot->hotplug_slot->name = kzalloc(SLOT_NAME_SIZE, GFP_KERNEL);
+	if (!slot->hotplug_slot->name)
+		goto error_info;
+
+	slot->hotplug_slot->private = slot;
+	slot->hotplug_slot->release = &release_slot;
+	slot->hotplug_slot->ops = &acpi_hotplug_slot_ops;
+
+	slot->acpi_slot = acpiphp_slot;
+	slot->hotplug_sl