Split drivers/pci/pci.c into smaller, bite-size chunks

10 files changed, 1541 insertions, 1525 deletions

diff --git a/drivers/pci/Makefile b/drivers/pci/Makefile
index a83c36f0d7d2..b713bcb4a1c0 100644
--- a/drivers/pci/Makefile
+++ b/drivers/pci/Makefile
@@ -11,9 +11,11 @@
 
 O_TARGET := driver.o
 
-export-objs := pci.o
+obj-y		+= access.o probe.o pci.o pool.o quirks.o \
+			compat.o names.o pci-driver.o search.o
+obj-$(CONFIG_PM)  += power.o
+obj-$(CONFIG_HOTPLUG)  += hotplug.o
 
-obj-$(CONFIG_PCI) += pci.o quirks.o compat.o names.o pci-driver.o
 obj-$(CONFIG_PROC_FS) += proc.o
 
 ifndef CONFIG_SPARC64
@@ -35,6 +37,8 @@ ifndef CONFIG_X86
 obj-y += syscall.o
 endif
 
+export-objs := $(obj-y)
+
 include $(TOPDIR)/Rules.make
 
 names.o: names.c devlist.h classlist.h
diff --git a/drivers/pci/access.c b/drivers/pci/access.c
new file mode 100644
index 000000000000..5546095e5a1f
--- /dev/null
+++ b/drivers/pci/access.c
@@ -0,0 +1,46 @@
+#include <linux/pci.h>
+#include <linux/module.h>
+#include <linux/ioport.h>
+
+/*
+ * This interrupt-safe spinlock protects all accesses to PCI
+ * configuration space.
+ */
+
+static spinlock_t pci_lock = SPIN_LOCK_UNLOCKED;
+
+/*
+ *  Wrappers for all PCI configuration access functions.  They just check
+ *  alignment, do locking and call the low-level functions pointed to
+ *  by pci_dev->ops.
+ */
+
+#define PCI_byte_BAD 0
+#define PCI_word_BAD (pos & 1)
+#define PCI_dword_BAD (pos & 3)
+
+#define PCI_OP(rw,size,type) \
+int pci_##rw##_config_##size (struct pci_dev *dev, int pos, type value) \
+{									\
+	int res;							\
+	unsigned long flags;						\
+	if (PCI_##size##_BAD) return PCIBIOS_BAD_REGISTER_NUMBER;	\
+	spin_lock_irqsave(&pci_lock, flags);				\
+	res = dev->bus->ops->rw##_##size(dev, pos, value);		\
+	spin_unlock_irqrestore(&pci_lock, flags);			\
+	return res;							\
+}
+
+PCI_OP(read, byte, u8 *)
+PCI_OP(read, word, u16 *)
+PCI_OP(read, dword, u32 *)
+PCI_OP(write, byte, u8)
+PCI_OP(write, word, u16)
+PCI_OP(write, dword, u32)
+
+EXPORT_SYMBOL(pci_read_config_byte);
+EXPORT_SYMBOL(pci_read_config_word);
+EXPORT_SYMBOL(pci_read_config_dword);
+EXPORT_SYMBOL(pci_write_config_byte);
+EXPORT_SYMBOL(pci_write_config_word);
+EXPORT_SYMBOL(pci_write_config_dword);
diff --git a/drivers/pci/hotplug.c b/drivers/pci/hotplug.c
new file mode 100644
index 000000000000..90eb3d8d426e
--- /dev/null
+++ b/drivers/pci/hotplug.c
@@ -0,0 +1,132 @@
+#include <linux/pci.h>
+#include <linux/module.h>
+#include <linux/kmod.h>		/* for hotplug_path */
+
+extern struct list_head pci_drivers;
+extern int pci_announce_device(struct pci_driver *drv, struct pci_dev *dev);
+
+#ifndef FALSE
+#define FALSE	(0)
+#define TRUE	(!FALSE)
+#endif
+
+static void
+run_sbin_hotplug(struct pci_dev *pdev, int insert)
+{
+	int i;
+	char *argv[3], *envp[8];
+	char id[20], sub_id[24], bus_id[24], class_id[20];
+
+	if (!hotplug_path[0])
+		return;
+
+	sprintf(class_id, "PCI_CLASS=%04X", pdev->class);
+	sprintf(id, "PCI_ID=%04X:%04X", pdev->vendor, pdev->device);
+	sprintf(sub_id, "PCI_SUBSYS_ID=%04X:%04X", pdev->subsystem_vendor, pdev->subsystem_device);
+	sprintf(bus_id, "PCI_SLOT_NAME=%s", pdev->slot_name);
+
+	i = 0;
+	argv[i++] = hotplug_path;
+	argv[i++] = "pci";
+	argv[i] = 0;
+
+	i = 0;
+	/* minimal command environment */
+	envp[i++] = "HOME=/";
+	envp[i++] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin";
+	
+	/* other stuff we want to pass to /sbin/hotplug */
+	envp[i++] = class_id;
+	envp[i++] = id;
+	envp[i++] = sub_id;
+	envp[i++] = bus_id;
+	if (insert)
+		envp[i++] = "ACTION=add";
+	else
+		envp[i++] = "ACTION=remove";
+	envp[i] = 0;
+
+	call_usermodehelper (argv [0], argv, envp);
+}
+
+/**
+ * pci_announce_device_to_drivers - tell the drivers a new device has appeared
+ * @dev: the device that has shown up
+ *
+ * Notifys the drivers that a new device has appeared, and also notifys
+ * userspace through /sbin/hotplug.
+ */
+void
+pci_announce_device_to_drivers(struct pci_dev *dev)
+{
+	struct list_head *ln;
+
+	for(ln=pci_drivers.next; ln != &pci_drivers; ln=ln->next) {
+		struct pci_driver *drv = list_entry(ln, struct pci_driver, node);
+		if (drv->remove && pci_announce_device(drv, dev))
+			break;
+	}
+
+	/* notify userspace of new hotplug device */
+	run_sbin_hotplug(dev, TRUE);
+}
+
+/**
+ * pci_insert_device - insert a hotplug device
+ * @dev: the device to insert
+ * @bus: where to insert it
+ *
+ * Add a new device to the device lists and notify userspace (/sbin/hotplug).
+ */
+void
+pci_insert_device(struct pci_dev *dev, struct pci_bus *bus)
+{
+	list_add_tail(&dev->bus_list, &bus->devices);
+	list_add_tail(&dev->global_list, &pci_devices);
+#ifdef CONFIG_PROC_FS
+	pci_proc_attach_device(dev);
+#endif
+	pci_announce_device_to_drivers(dev);
+}
+
+static void
+pci_free_resources(struct pci_dev *dev)
+{
+	int i;
+
+	for (i = 0; i < PCI_NUM_RESOURCES; i++) {
+		struct resource *res = dev->resource + i;
+		if (res->parent)
+			release_resource(res);
+	}
+}
+
+/**
+ * pci_remove_device - remove a hotplug device
+ * @dev: the device to remove
+ *
+ * Delete the device structure from the device lists and 
+ * notify userspace (/sbin/hotplug).
+ */
+void
+pci_remove_device(struct pci_dev *dev)
+{
+	if (dev->driver) {
+		if (dev->driver->remove)
+			dev->driver->remove(dev);
+		dev->driver = NULL;
+	}
+	list_del(&dev->bus_list);
+	list_del(&dev->global_list);
+	pci_free_resources(dev);
+#ifdef CONFIG_PROC_FS
+	pci_proc_detach_device(dev);
+#endif
+
+	/* notify userspace of hotplug device removal */
+	run_sbin_hotplug(dev, FALSE);
+}
+
+EXPORT_SYMBOL(pci_insert_device);
+EXPORT_SYMBOL(pci_remove_device);
+EXPORT_SYMBOL(pci_announce_device_to_drivers);
diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
index 1b03c56056a4..702542470631 100644
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -1,9 +1,138 @@
 /*
- * drivers/pci/pci-driver.c - default PCI driver.
+ * drivers/pci/pci-driver.c
  *
  */
 
 #include <linux/pci.h>
+#include <linux/module.h>
+
+/*
+ *  Registration of PCI drivers and handling of hot-pluggable devices.
+ */
+
+LIST_HEAD(pci_drivers);
+
+/**
+ * pci_match_device - Tell if a PCI device structure has a matching PCI device id structure
+ * @ids: array of PCI device id structures to search in
+ * @dev: the PCI device structure to match against
+ * 
+ * Used by a driver to check whether a PCI device present in the
+ * system is in its list of supported devices.Returns the matching
+ * pci_device_id structure or %NULL if there is no match.
+ */
+const struct pci_device_id *
+pci_match_device(const struct pci_device_id *ids, const struct pci_dev *dev)
+{
+	while (ids->vendor || ids->subvendor || ids->class_mask) {
+		if ((ids->vendor == PCI_ANY_ID || ids->vendor == dev->vendor) &&
+		    (ids->device == PCI_ANY_ID || ids->device == dev->device) &&
+		    (ids->subvendor == PCI_ANY_ID || ids->subvendor == dev->subsystem_vendor) &&
+		    (ids->subdevice == PCI_ANY_ID || ids->subdevice == dev->subsystem_device) &&
+		    !((ids->class ^ dev->class) & ids->class_mask))
+			return ids;
+		ids++;
+	}
+	return NULL;
+}
+
+int
+pci_announce_device(struct pci_driver *drv, struct pci_dev *dev)
+{
+	const struct pci_device_id *id;
+	int ret = 0;
+
+	if (drv->id_table) {
+		id = pci_match_device(drv->id_table, dev);
+		if (!id) {
+			ret = 0;
+			goto out;
+		}
+	} else
+		id = NULL;
+
+	dev_probe_lock();
+	if (drv->probe(dev, id) >= 0) {
+		dev->driver = drv;
+		ret = 1;
+	}
+	dev_probe_unlock();
+out:
+	return ret;
+}
+
+/**
+ * pci_register_driver - register a new pci driver
+ * @drv: the driver structure to register
+ * 
+ * Adds the driver structure to the list of registered drivers
+ * Returns the number of pci devices which were claimed by the driver
+ * during registration.  The driver remains registered even if the
+ * return value is zero.
+ */
+int
+pci_register_driver(struct pci_driver *drv)
+{
+	struct pci_dev *dev;
+	int count = 0;
+
+	list_add_tail(&drv->node, &pci_drivers);
+	pci_for_each_dev(dev) {
+		if (!pci_dev_driver(dev))
+			count += pci_announce_device(drv, dev);
+	}
+	return count;
+}
+
+/**
+ * pci_unregister_driver - unregister a pci driver
+ * @drv: the driver structure to unregister
+ * 
+ * Deletes the driver structure from the list of registered PCI drivers,
+ * gives it a chance to clean up by calling its remove() function for
+ * each device it was responsible for, and marks those devices as
+ * driverless.
+ */
+
+void
+pci_unregister_driver(struct pci_driver *drv)
+{
+	struct pci_dev *dev;
+
+	list_del(&drv->node);
+	pci_for_each_dev(dev) {
+		if (dev->driver == drv) {
+			if (drv->remove)
+				drv->remove(dev);
+			dev->driver = NULL;
+		}
+	}
+}
+
+static struct pci_driver pci_compat_driver = {
+	name: "compat"
+};
+
+/**
+ * pci_dev_driver - get the pci_driver of a device
+ * @dev: the device to query
+ *
+ * Returns the appropriate pci_driver structure or %NULL if there is no 
+ * registered driver for the device.
+ */
+struct pci_driver *
+pci_dev_driver(const struct pci_dev *dev)
+{
+	if (dev->driver)
+		return dev->driver;
+	else {
+		int i;
+		for(i=0; i<=PCI_ROM_RESOURCE; i++)
+			if (dev->resource[i].flags & IORESOURCE_BUSY)
+				return &pci_compat_driver;
+	}
+	return NULL;
+}
 
 static int pci_device_suspend(struct device * dev, u32 state, u32 level)
 {
@@ -34,3 +163,8 @@ struct device_driver pci_device_driver = {
 	suspend:	pci_device_suspend,
 	resume:		pci_device_resume,
 };
+
+EXPORT_SYMBOL(pci_match_device);
+EXPORT_SYMBOL(pci_register_driver);
+EXPORT_SYMBOL(pci_unregister_driver);
+EXPORT_SYMBOL(pci_dev_driver);
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 3ccb2eb63a2c..27e532c1ac1e 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -9,23 +9,9 @@
  *	Copyright 1997 -- 2000 Martin Mares <mj@ucw.cz>
  */
 
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
 #include <linux/pci.h>
-#include <linux/string.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/ioport.h>
+#include <linux/module.h>
 #include <linux/spinlock.h>
-#include <linux/pm.h>
-#include <linux/kmod.h>		/* for hotplug_path */
-#include <linux/bitops.h>
-#include <linux/delay.h>
-#include <linux/cache.h>
-
-#include <asm/page.h>
 #include <asm/dma.h>	/* isa_dma_bridge_buggy */
 
 #undef DEBUG
@@ -36,114 +22,6 @@
 #define DBG(x...)
 #endif
 
-LIST_HEAD(pci_root_buses);
-LIST_HEAD(pci_devices);
-
-extern struct device_driver pci_device_driver;
-
-/**
- * pci_find_slot - locate PCI device from a given PCI slot
- * @bus: number of PCI bus on which desired PCI device resides
- * @devfn: encodes number of PCI slot in which the desired PCI 
- * device resides and the logical device number within that slot 
- * in case of multi-function devices.
- *
- * Given a PCI bus and slot/function number, the desired PCI device 
- * is located in system global list of PCI devices.  If the device
- * is found, a pointer to its data structure is returned.  If no 
- * device is found, %NULL is returned.
- */
-struct pci_dev *
-pci_find_slot(unsigned int bus, unsigned int devfn)
-{
-	struct pci_dev *dev;
-
-	pci_for_each_dev(dev) {
-		if (dev->bus->number == bus && dev->devfn == devfn)
-			return dev;
-	}
-	return NULL;
-}
-
-/**
- * pci_find_subsys - begin or continue searching for a PCI device by vendor/subvendor/device/subdevice id
- * @vendor: PCI vendor id to match, or %PCI_ANY_ID to match all vendor ids
- * @device: PCI device id to match, or %PCI_ANY_ID to match all device ids
- * @ss_vendor: PCI subsystem vendor id to match, or %PCI_ANY_ID to match all vendor ids
- * @ss_device: PCI subsystem device id to match, or %PCI_ANY_ID to match all device ids
- * @from: Previous PCI device found in search, or %NULL for new search.
- *
- * Iterates through the list of known PCI devices.  If a PCI device is
- * found with a matching @vendor, @device, @ss_vendor and @ss_device, a pointer to its
- * device structure is returned.  Otherwise, %NULL is returned.
- * A new search is initiated by passing %NULL to the @from argument.
- * Otherwise if @from is not %NULL, searches continue from next device on the global list.
- */
-struct pci_dev *
-pci_find_subsys(unsigned int vendor, unsigned int device,
-		unsigned int ss_vendor, unsigned int ss_device,
-		const struct pci_dev *from)
-{
-	struct list_head *n = from ? from->global_list.next : pci_devices.next;
-
-	while (n != &pci_devices) {
-		struct pci_dev *dev = pci_dev_g(n);
-		if ((vendor == PCI_ANY_ID || dev->vendor == vendor) &&
-		    (device == PCI_ANY_ID || dev->device == device) &&
-		    (ss_vendor == PCI_ANY_ID || dev->subsystem_vendor == ss_vendor) &&
-		    (ss_device == PCI_ANY_ID || dev->subsystem_device == ss_device))
-			return dev;
-		n = n->next;
-	}
-	return NULL;
-}
-
-
-/**
- * pci_find_device - begin or continue searching for a PCI device by vendor/device id
- * @vendor: PCI vendor id to match, or %PCI_ANY_ID to match all vendor ids
- * @device: PCI device id to match, or %PCI_ANY_ID to match all device ids
- * @from: Previous PCI device found in search, or %NULL for new search.
- *
- * Iterates through the list of known PCI devices.  If a PCI device is
- * found with a matching @vendor and @device, a pointer to its device structure is
- * returned.  Otherwise, %NULL is returned.
- * A new search is initiated by passing %NULL to the @from argument.
- * Otherwise if @from is not %NULL, searches continue from next device on the global list.
- */
-struct pci_dev *
-pci_find_device(unsigned int vendor, unsigned int device, const struct pci_dev *from)
-{
-	return pci_find_subsys(vendor, device, PCI_ANY_ID, PCI_ANY_ID, from);
-}
-
-
-/**
- * pci_find_class - begin or continue searching for a PCI device by class
- * @class: search for a PCI device with this class designation
- * @from: Previous PCI device found in search, or %NULL for new search.
- *
- * Iterates through the list of known PCI devices.  If a PCI device is
- * found with a matching @class, a pointer to its device structure is
- * returned.  Otherwise, %NULL is returned.
- * A new search is initiated by passing %NULL to the @from argument.
- * Otherwise if @from is not %NULL, searches continue from next device
- * on the global list.
- */
-struct pci_dev *
-pci_find_class(unsigned int class, const struct pci_dev *from)
-{
-	struct list_head *n = from ? from->global_list.next : pci_devices.next;
-
-	while (n != &pci_devices) {
-		struct pci_dev *dev = pci_dev_g(n);
-		if (dev->class == class)
-			return dev;
-		n = n->next;
-	}
-	return NULL;
-}
-
 /**
  * pci_find_capability - query for devices' capabilities 
  * @dev: PCI device to query
@@ -536,298 +414,6 @@ err_out:
 	return -EBUSY;
 }
 
-
-/*
- *  Registration of PCI drivers and handling of hot-pluggable devices.
- */
-
-static LIST_HEAD(pci_drivers);
-
-/**
- * pci_match_device - Tell if a PCI device structure has a matching PCI device id structure
- * @ids: array of PCI device id structures to search in
- * @dev: the PCI device structure to match against
- * 
- * Used by a driver to check whether a PCI device present in the
- * system is in its list of supported devices.Returns the matching
- * pci_device_id structure or %NULL if there is no match.
- */
-const struct pci_device_id *
-pci_match_device(const struct pci_device_id *ids, const struct pci_dev *dev)
-{
-	while (ids->vendor || ids->subvendor || ids->class_mask) {
-		if ((ids->vendor == PCI_ANY_ID || ids->vendor == dev->vendor) &&
-		    (ids->device == PCI_ANY_ID || ids->device == dev->device) &&
-		    (ids->subvendor == PCI_ANY_ID || ids->subvendor == dev->subsystem_vendor) &&
-		    (ids->subdevice == PCI_ANY_ID || ids->subdevice == dev->subsystem_device) &&
-		    !((ids->class ^ dev->class) & ids->class_mask))
-			return ids;
-		ids++;
-	}
-	return NULL;
-}
-
-static int
-pci_announce_device(struct pci_driver *drv, struct pci_dev *dev)
-{
-	const struct pci_device_id *id;
-	int ret = 0;
-
-	if (drv->id_table) {
-		id = pci_match_device(drv->id_table, dev);
-		if (!id) {
-			ret = 0;
-			goto out;
-		}
-	} else
-		id = NULL;
-
-	dev_probe_lock();
-	if (drv->probe(dev, id) >= 0) {
-		dev->driver = drv;
-		ret = 1;
-	}
-	dev_probe_unlock();
-out:
-	return ret;
-}
-
-/**
- * pci_register_driver - register a new pci driver
- * @drv: the driver structure to register
- * 
- * Adds the driver structure to the list of registered drivers
- * Returns the number of pci devices which were claimed by the driver
- * during registration.  The driver remains registered even if the
- * return value is zero.
- */
-int
-pci_register_driver(struct pci_driver *drv)
-{
-	struct pci_dev *dev;
-	int count = 0;
-
-	list_add_tail(&drv->node, &pci_drivers);
-	pci_for_each_dev(dev) {
-		if (!pci_dev_driver(dev))
-			count += pci_announce_device(drv, dev);
-	}
-	return count;
-}
-
-/**
- * pci_unregister_driver - unregister a pci driver
- * @drv: the driver structure to unregister
- * 
- * Deletes the driver structure from the list of registered PCI drivers,
- * gives it a chance to clean up by calling its remove() function for
- * each device it was responsible for, and marks those devices as
- * driverless.
- */
-
-void
-pci_unregister_driver(struct pci_driver *drv)
-{
-	struct pci_dev *dev;
-
-	list_del(&drv->node);
-	pci_for_each_dev(dev) {
-		if (dev->driver == drv) {
-			if (drv->remove)
-				drv->remove(dev);
-			dev->driver = NULL;
-		}
-	}
-}
-
-#ifdef CONFIG_HOTPLUG
-
-#ifndef FALSE
-#define FALSE	(0)
-#define TRUE	(!FALSE)
-#endif
-
-static void
-run_sbin_hotplug(struct pci_dev *pdev, int insert)
-{
-	int i;
-	char *argv[3], *envp[8];
-	char id[20], sub_id[24], bus_id[24], class_id[20];
-
-	if (!hotplug_path[0])
-		return;
-
-	sprintf(class_id, "PCI_CLASS=%04X", pdev->class);
-	sprintf(id, "PCI_ID=%04X:%04X", pdev->vendor, pdev->device);
-	sprintf(sub_id, "PCI_SUBSYS_ID=%04X:%04X", pdev->subsystem_vendor, pdev->subsystem_device);
-	sprintf(bus_id, "PCI_SLOT_NAME=%s", pdev->slot_name);
-
-	i = 0;
-	argv[i++] = hotplug_path;
-	argv[i++] = "pci";
-	argv[i] = 0;
-
-	i = 0;
-	/* minimal command environment */
-	envp[i++] = "HOME=/";
-	envp[i++] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin";
-	
-	/* other stuff we want to pass to /sbin/hotplug */
-	envp[i++] = class_id;
-	envp[i++] = id;
-	envp[i++] = sub_id;
-	envp[i++] = bus_id;
-	if (insert)
-		envp[i++] = "ACTION=add";
-	else
-		envp[i++] = "ACTION=remove";
-	envp[i] = 0;
-
-	call_usermodehelper (argv [0], argv, envp);
-}
-
-/**
- * pci_announce_device_to_drivers - tell the drivers a new device has appeared
- * @dev: the device that has shown up
- *
- * Notifys the drivers that a new device has appeared, and also notifys
- * userspace through /sbin/hotplug.
- */
-void
-pci_announce_device_to_drivers(struct pci_dev *dev)
-{
-	struct list_head *ln;
-
-	for(ln=pci_drivers.next; ln != &pci_drivers; ln=ln->next) {
-		struct pci_driver *drv = list_entry(ln, struct pci_driver, node);
-		if (drv->remove && pci_announce_device(drv, dev))
-			break;
-	}
-
-	/* notify userspace of new hotplug device */
-	run_sbin_hotplug(dev, TRUE);
-}
-
-/**
- * pci_insert_device - insert a hotplug device
- * @dev: the device to insert
- * @bus: where to insert it
- *
- * Add a new device to the device lists and notify userspace (/sbin/hotplug).
- */
-void
-pci_insert_device(struct pci_dev *dev, struct pci_bus *bus)
-{
-	list_add_tail(&dev->bus_list, &bus->devices);
-	list_add_tail(&dev->global_list, &pci_devices);
-#ifdef CONFIG_PROC_FS
-	pci_proc_attach_device(dev);
-#endif
-	pci_announce_device_to_drivers(dev);
-}
-
-static void
-pci_free_resources(struct pci_dev *dev)
-{
-	int i;
-
-	for (i = 0; i < PCI_NUM_RESOURCES; i++) {
-		struct resource *res = dev->resource + i;
-		if (res->parent)
-			release_resource(res);
-	}
-}
-
-/**
- * pci_remove_device - remove a hotplug device
- * @dev: the device to remove
- *
- * Delete the device structure from the device lists and 
- * notify userspace (/sbin/hotplug).
- */
-void
-pci_remove_device(struct pci_dev *dev)
-{
-	if (dev->driver) {
-		if (dev->driver->remove)
-			dev->driver->remove(dev);
-		dev->driver = NULL;
-	}
-	list_del(&dev->bus_list);
-	list_del(&dev->global_list);
-	pci_free_resources(dev);
-#ifdef CONFIG_PROC_FS
-	pci_proc_detach_device(dev);
-#endif
-
-	/* notify userspace of hotplug device removal */
-	run_sbin_hotplug(dev, FALSE);
-}
-
-#endif
-
-static struct pci_driver pci_compat_driver = {
-	name: "compat"
-};
-
-/**
- * pci_dev_driver - get the pci_driver of a device
- * @dev: the device to query
- *
- * Returns the appropriate pci_driver structure or %NULL if there is no 
- * registered driver for the device.
- */
-struct pci_driver *
-pci_dev_driver(const struct pci_dev *dev)
-{
-	if (dev->driver)
-		return dev->driver;
-	else {
-		int i;
-		for(i=0; i<=PCI_ROM_RESOURCE; i++)
-			if (dev->resource[i].flags & IORESOURCE_BUSY)
-				return &pci_compat_driver;
-	}
-	return NULL;
-}
-
-
-/*
- * This interrupt-safe spinlock protects all accesses to PCI
- * configuration space.
- */
-
-static spinlock_t pci_lock = SPIN_LOCK_UNLOCKED;
-
-/*
- *  Wrappers for all PCI configuration access functions.  They just check
- *  alignment, do locking and call the low-level functions pointed to
- *  by pci_dev->ops.
- */
-
-#define PCI_byte_BAD 0
-#define PCI_word_BAD (pos & 1)
-#define PCI_dword_BAD (pos & 3)
-
-#define PCI_OP(rw,size,type) \
-int pci_##rw##_config_##size (struct pci_dev *dev, int pos, type value) \
-{									\
-	int res;							\
-	unsigned long flags;						\
-	if (PCI_##size##_BAD) return PCIBIOS_BAD_REGISTER_NUMBER;	\
-	spin_lock_irqsave(&pci_lock, flags);				\
-	res = dev->bus->ops->rw##_##size(dev, pos, value);		\
-	spin_unlock_irqrestore(&pci_lock, flags);			\
-	return res;							\
-}
-
-PCI_OP(read, byte, u8 *)
-PCI_OP(read, word, u16 *)
-PCI_OP(read, dword, u32 *)
-PCI_OP(write, byte, u8)
-PCI_OP(write, word, u16)
-PCI_OP(write, dword, u32)
-
 /**
  * pci_set_master - enables bus-mastering for device dev
  * @dev: the PCI device to enable
@@ -966,1066 +552,6 @@ pci_dac_set_dma_mask(struct pci_dev *dev, u64 mask)
 
 	return 0;
 }
-    
-/*
- * Translate the low bits of the PCI base
- * to the resource type
- */
-static inline unsigned int pci_calc_resource_flags(unsigned int flags)
-{
-	if (flags & PCI_BASE_ADDRESS_SPACE_IO)
-		return IORESOURCE_IO;
-
-	if (flags & PCI_BASE_ADDRESS_MEM_PREFETCH)
-		return IORESOURCE_MEM | IORESOURCE_PREFETCH;
-
-	return IORESOURCE_MEM;
-}
-
-/*
- * Find the extent of a PCI decode..
- */
-static u32 pci_size(u32 base, unsigned long mask)
-{
-	u32 size = mask & base;		/* Find the significant bits */
-	size = size & ~(size-1);	/* Get the lowest of them to find the decode size */
-	return size-1;			/* extent = size - 1 */
-}
-
-static void pci_read_bases(struct pci_dev *dev, unsigned int howmany, int rom)
-{
-	unsigned int pos, reg, next;
-	u32 l, sz;
-	struct resource *res;
-
-	for(pos=0; pos<howmany; pos = next) {
-		next = pos+1;
-		res = &dev->resource[pos];
-		res->name = dev->name;
-		reg = PCI_BASE_ADDRESS_0 + (pos << 2);
-		pci_read_config_dword(dev, reg, &l);
-		pci_write_config_dword(dev, reg, ~0);
-		pci_read_config_dword(dev, reg, &sz);
-		pci_write_config_dword(dev, reg, l);
-		if (!sz || sz == 0xffffffff)
-			continue;
-		if (l == 0xffffffff)
-			l = 0;
-		if ((l & PCI_BASE_ADDRESS_SPACE) == PCI_BASE_ADDRESS_SPACE_MEMORY) {
-			res->start = l & PCI_BASE_ADDRESS_MEM_MASK;
-			res->flags |= l & ~PCI_BASE_ADDRESS_MEM_MASK;
-			sz = pci_size(sz, PCI_BASE_ADDRESS_MEM_MASK);
-		} else {
-			res->start = l & PCI_BASE_ADDRESS_IO_MASK;
-			res->flags |= l & ~PCI_BASE_ADDRESS_IO_MASK;
-			sz = pci_size(sz, PCI_BASE_ADDRESS_IO_MASK & 0xffff);
-		}
-		res->end = res->start + (unsigned long) sz;
-		res->flags |= pci_calc_resource_flags(l);
-		if ((l & (PCI_BASE_ADDRESS_SPACE | PCI_BASE_ADDRESS_MEM_TYPE_MASK))
-		    == (PCI_BASE_ADDRESS_SPACE_MEMORY | PCI_BASE_ADDRESS_MEM_TYPE_64)) {
-			pci_read_config_dword(dev, reg+4, &l);
-			next++;
-#if BITS_PER_LONG == 64
-			res->start |= ((unsigned long) l) << 32;
-			res->end = res->start + sz;
-			pci_write_config_dword(dev, reg+4, ~0);
-			pci_read_config_dword(dev, reg+4, &sz);
-			pci_write_config_dword(dev, reg+4, l);
-			if (~sz)
-				res->end = res->start + 0xffffffff +
-						(((unsigned long) ~sz) << 32);
-#else
-			if (l) {
-				printk(KERN_ERR "PCI: Unable to handle 64-bit address for device %s\n", dev->slot_name);
-				res->start = 0;
-				res->flags = 0;
-				continue;
-			}
-#endif
-		}
-	}
-	if (rom) {
-		dev->rom_base_reg = rom;
-		res = &dev->resource[PCI_ROM_RESOURCE];
-		pci_read_config_dword(dev, rom, &l);
-		pci_write_config_dword(dev, rom, ~PCI_ROM_ADDRESS_ENABLE);
-		pci_read_config_dword(dev, rom, &sz);
-		pci_write_config_dword(dev, rom, l);
-		if (l == 0xffffffff)
-			l = 0;
-		if (sz && sz != 0xffffffff) {
-			res->flags = (l & PCI_ROM_ADDRESS_ENABLE) |
-			  IORESOURCE_MEM | IORESOURCE_PREFETCH | IORESOURCE_READONLY | IORESOURCE_CACHEABLE;
-			res->start = l & PCI_ROM_ADDRESS_MASK;
-			sz = pci_size(sz, PCI_ROM_ADDRESS_MASK);
-			res->end = res->start + (unsigned long) sz;
-		}
-		res->name = dev->name;
-	}
-}
-
-void __devinit pci_read_bridge_bases(struct pci_bus *child)
-{
-	struct pci_dev *dev = child->self;
-	u8 io_base_lo, io_limit_lo;
-	u16 mem_base_lo, mem_limit_lo;
-	unsigned long base, limit;
-	struct resource *res;
-	int i;
-
-	if (!dev)		/* It's a host bus, nothing to read */
-		return;
-
-	for(i=0; i<3; i++)
-		child->resource[i] = &dev->resource[PCI_BRIDGE_RESOURCES+i];
-
-	res = child->resource[0];
-	pci_read_config_byte(dev, PCI_IO_BASE, &io_base_lo);
-	pci_read_config_byte(dev, PCI_IO_LIMIT, &io_limit_lo);
-	base = (io_base_lo & PCI_IO_RANGE_MASK) << 8;
-	limit = (io_limit_lo & PCI_IO_RANGE_MASK) << 8;
-
-	if ((io_base_lo & PCI_IO_RANGE_TYPE_MASK) == PCI_IO_RANGE_TYPE_32) {
-		u16 io_base_hi, io_limit_hi;
-		pci_read_config_word(dev, PCI_IO_BASE_UPPER16, &io_base_hi);
-		pci_read_config_word(dev, PCI_IO_LIMIT_UPPER16, &io_limit_hi);
-		base |= (io_base_hi << 16);
-		limit |= (io_limit_hi << 16);
-	}
-
-	if (base && base <= limit) {
-		res->flags = (io_base_lo & PCI_IO_RANGE_TYPE_MASK) | IORESOURCE_IO;
-		res->start = base;
-		res->end = limit + 0xfff;
-		res->name = child->name;
-	} else {
-		/*
-		 * Ugh. We don't know enough about this bridge. Just assume
-		 * that it's entirely transparent.
-		 */
-		printk(KERN_ERR "Unknown bridge resource %d: assuming transparent\n", 0);
-		child->resource[0] = child->parent->resource[0];
-	}
-
-	res = child->resource[1];
-	pci_read_config_word(dev, PCI_MEMORY_BASE, &mem_base_lo);
-	pci_read_config_word(dev, PCI_MEMORY_LIMIT, &mem_limit_lo);
-	base = (mem_base_lo & PCI_MEMORY_RANGE_MASK) << 16;
-	limit = (mem_limit_lo & PCI_MEMORY_RANGE_MASK) << 16;
-	if (base && base <= limit) {
-		res->flags = (mem_base_lo & PCI_MEMORY_RANGE_TYPE_MASK) | IORESOURCE_MEM;
-		res->start = base;
-		res->end = limit + 0xfffff;
-		res->name = child->name;
-	} else {
-		/* See comment above. Same thing */
-		printk(KERN_ERR "Unknown bridge resource %d: assuming transparent\n", 1);
-		child->resource[1] = child->parent->resource[1];
-	}
-
-	res = child->resource[2];
-	pci_read_config_word(dev, PCI_PREF_MEMORY_BASE, &mem_base_lo);
-	pci_read_config_word(dev, PCI_PREF_MEMORY_LIMIT, &mem_limit_lo);
-	base = (mem_base_lo & PCI_PREF_RANGE_MASK) << 16;
-	limit = (mem_limit_lo & PCI_PREF_RANGE_MASK) << 16;
-
-	if ((mem_base_lo & PCI_PREF_RANGE_TYPE_MASK) == PCI_PREF_RANGE_TYPE_64) {
-		u32 mem_base_hi, mem_limit_hi;
-		pci_read_config_dword(dev, PCI_PREF_BASE_UPPER32, &mem_base_hi);
-		pci_read_config_dword(dev, PCI_PREF_LIMIT_UPPER32, &mem_limit_hi);
-#if BITS_PER_LONG == 64
-		base |= ((long) mem_base_hi) << 32;
-		limit |= ((long) mem_limit_hi) << 32;
-#else
-		if (mem_base_hi || mem_limit_hi) {
-			printk(KERN_ERR "PCI: Unable to handle 64-bit address space for %s\n", child->name);
-			return;
-		}
-#endif
-	}
-	if (base && base <= limit) {
-		res->flags = (mem_base_lo & PCI_MEMORY_RANGE_TYPE_MASK) | IORESOURCE_MEM | IORESOURCE_PREFETCH;
-		res->start = base;
-		res->end = limit + 0xfffff;
-		res->name = child->name;
-	} else {
-		/* See comments above */
-		printk(KERN_ERR "Unknown bridge resource %d: assuming transparent\n", 2);
-		child->resource[2] = child->parent->resource[2];
-	}
-}
-
-static struct pci_bus * __devinit pci_alloc_bus(void)
-{
-	struct pci_bus *b;
-
-	b = kmalloc(sizeof(*b), GFP_KERNEL);
-	if (b) {
-		memset(b, 0, sizeof(*b));
-		INIT_LIST_HEAD(&b->children);
-		INIT_LIST_HEAD(&b->devices);
-	}
-	return b;
-}
-
-struct pci_bus * __devinit pci_add_new_bus(struct pci_bus *parent, struct pci_dev *dev, int busnr)
-{
-	struct pci_bus *child;
-	int i;
-
-	/*
-	 * Allocate a new bus, and inherit stuff from the parent..
-	 */
-	child = pci_alloc_bus();
-
-	list_add_tail(&child->node, &parent->children);
-	child->self = dev;
-	dev->subordinate = child;
-	child->parent = parent;
-	child->ops = parent->ops;
-	child->sysdata = parent->sysdata;
-	child->dev = &dev->dev;
-
-	/*
-	 * Set up the primary, secondary and subordinate
-	 * bus numbers.
-	 */
-	child->number = child->secondary = busnr;
-	child->primary = parent->secondary;
-	child->subordinate = 0xff;
-
-	/* Set up default resource pointers.. */
-	for (i = 0; i < 4; i++)
-		child->resource[i] = &dev->resource[PCI_BRIDGE_RESOURCES+i];
-
-	return child;
-}
-
-unsigned int __devinit pci_do_scan_bus(struct pci_bus *bus);
-
-/*
- * If it's a bridge, configure it and scan the bus behind it.
- * For CardBus bridges, we don't scan behind as the devices will
- * be handled by the bridge driver itself.
- *
- * We need to process bridges in two passes -- first we scan those
- * already configured by the BIOS and after we are done with all of
- * them, we proceed to assigning numbers to the remaining buses in
- * order to avoid overlaps between old and new bus numbers.
- */
-static int __devinit pci_scan_bridge(struct pci_bus *bus, struct pci_dev * dev, int max, int pass)
-{
-	unsigned int buses;
-	unsigned short cr;
-	struct pci_bus *child;
-	int is_cardbus = (dev->hdr_type == PCI_HEADER_TYPE_CARDBUS);
-
-	pci_read_config_dword(dev, PCI_PRIMARY_BUS, &buses);
-	DBG("Scanning behind PCI bridge %s, config %06x, pass %d\n", dev->slot_name, buses & 0xffffff, pass);
-	if ((buses & 0xffff00) && !pcibios_assign_all_busses()) {
-		/*
-		 * Bus already configured by firmware, process it in the first
-		 * pass and just note the configuration.
-		 */
-		if (pass)
-			return max;
-		child = pci_add_new_bus(bus, dev, 0);
-		child->primary = buses & 0xFF;
-		child->secondary = (buses >> 8) & 0xFF;
-		child->subordinate = (buses >> 16) & 0xFF;
-		child->number = child->secondary;
-		if (!is_cardbus) {
-			unsigned int cmax = pci_do_scan_bus(child);
-			if (cmax > max) max = cmax;
-		} else {
-			unsigned int cmax = child->subordinate;
-			if (cmax > max) max = cmax;
-		}
-	} else {
-		/*
-		 * We need to assign a number to this bus which we always
-		 * do in the second pass. We also keep all address decoders
-		 * on the bridge disabled during scanning.  FIXME: Why?
-		 */
-		if (!pass)
-			return max;
-		pci_read_config_word(dev, PCI_COMMAND, &cr);
-		pci_write_config_word(dev, PCI_COMMAND, 0x0000);
-		pci_write_config_word(dev, PCI_STATUS, 0xffff);
-
-		child = pci_add_new_bus(bus, dev, ++max);
-		buses = (buses & 0xff000000)
-		      | ((unsigned int)(child->primary)     <<  0)
-		      | ((unsigned int)(child->secondary)   <<  8)
-		      | ((unsigned int)(child->subordinate) << 16);
-		/*
-		 * We need to blast all three values with a single write.
-		 */
-		pci_write_config_dword(dev, PCI_PRIMARY_BUS, buses);
-		if (!is_cardbus) {
-			/* Now we can scan all subordinate buses... */
-			max = pci_do_scan_bus(child);
-		} else {
-			/*
-			 * For CardBus bridges, we leave 4 bus numbers
-			 * as cards with a PCI-to-PCI bridge can be
-			 * inserted later.
-			 */
-			max += 3;
-		}
-		/*
-		 * Set the subordinate bus number to its real value.
-		 */
-		child->subordinate = max;
-		pci_write_config_byte(dev, PCI_SUBORDINATE_BUS, max);
-		pci_write_config_word(dev, PCI_COMMAND, cr);
-	}
-	sprintf(child->name, (is_cardbus ? "PCI CardBus #%02x" : "PCI Bus #%02x"), child->number);
-
-	return max;
-}
-
-/*
- * Read interrupt line and base address registers.
- * The architecture-dependent code can tweak these, of course.
- */
-static void pci_read_irq(struct pci_dev *dev)
-{
-	unsigned char irq;
-
-	pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &irq);
-	if (irq)
-		pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq);
-	dev->irq = irq;
-}
-
-/**
- * pci_setup_device - fill in class and map information of a device
- * @dev: the device structure to fill
- *
- * Initialize the device structure with information about the device's 
- * vendor,class,memory and IO-space addresses,IRQ lines etc.
- * Called at initialisation of the PCI subsystem and by CardBus services.
- * Returns 0 on success and -1 if unknown type of device (not normal, bridge
- * or CardBus).
- */
-int pci_setup_device(struct pci_dev * dev)
-{
-	u32 class;
-
-	sprintf(dev->slot_name, "%02x:%02x.%d", dev->bus->number, PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
-	sprintf(dev->name, "PCI device %04x:%04x", dev->vendor, dev->device);
-	
-	pci_read_config_dword(dev, PCI_CLASS_REVISION, &class);
-	class >>= 8;				    /* upper 3 bytes */
-	dev->class = class;
-	class >>= 8;
-
-	DBG("Found %02x:%02x [%04x/%04x] %06x %02x\n", dev->bus->number, dev->devfn, dev->vendor, dev->device, class, dev->hdr_type);
-
-	/* "Unknown power state" */
-	dev->current_state = 4;
-
-	switch (dev->hdr_type) {		    /* header type */
-	case PCI_HEADER_TYPE_NORMAL:		    /* standard header */
-		if (class == PCI_CLASS_BRIDGE_PCI)
-			goto bad;
-		pci_read_irq(dev);
-		pci_read_bases(dev, 6, PCI_ROM_ADDRESS);
-		pci_read_config_word(dev, PCI_SUBSYSTEM_VENDOR_ID, &dev->subsystem_vendor);
-		pci_read_config_word(dev, PCI_SUBSYSTEM_ID, &dev->subsystem_device);
-		break;
-
-	case PCI_HEADER_TYPE_BRIDGE:		    /* bridge header */
-		if (class != PCI_CLASS_BRIDGE_PCI)
-			goto bad;
-		pci_read_bases(dev, 2, PCI_ROM_ADDRESS1);
-		break;
-
-	case PCI_HEADER_TYPE_CARDBUS:		    /* CardBus bridge header */
-		if (class != PCI_CLASS_BRIDGE_CARDBUS)
-			goto bad;
-		pci_read_irq(dev);
-		pci_read_bases(dev, 1, 0);
-		pci_read_config_word(dev, PCI_CB_SUBSYSTEM_VENDOR_ID, &dev->subsystem_vendor);
-		pci_read_config_word(dev, PCI_CB_SUBSYSTEM_ID, &dev->subsystem_device);
-		break;
-
-	default:				    /* unknown header */
-		printk(KERN_ERR "PCI: device %s has unknown header type %02x, ignoring.\n",
-			dev->slot_name, dev->hdr_type);
-		return -1;
-
-	bad:
-		printk(KERN_ERR "PCI: %s: class %x doesn't match header type %02x. Ignoring class.\n",
-		       dev->slot_name, class, dev->hdr_type);
-		dev->class = PCI_CLASS_NOT_DEFINED;
-	}
-
-	/* We found a fine healthy device, go go go... */
-	return 0;
-}
-
-/*
- * Read the config data for a PCI device, sanity-check it
- * and fill in the dev structure...
- */
-struct pci_dev * __devinit pci_scan_device(struct pci_dev *temp)
-{
-	struct pci_dev *dev;
-	u32 l;
-
-	if (pci_read_config_dword(temp, PCI_VENDOR_ID, &l))
-		return NULL;
-
-	/* some broken boards return 0 or ~0 if a slot is empty: */
-	if (l == 0xffffffff || l == 0x00000000 || l == 0x0000ffff || l == 0xffff0000)
-		return NULL;
-
-	dev = kmalloc(sizeof(*dev), GFP_KERNEL);
-	if (!dev)
-		return NULL;
-
-	memcpy(dev, temp, sizeof(*dev));
-	dev->vendor = l & 0xffff;
-	dev->device = (l >> 16) & 0xffff;
-
-	/* Assume 32-bit PCI; let 64-bit PCI cards (which are far rarer)
-	   set this higher, assuming the system even supports it.  */
-	dev->dma_mask = 0xffffffff;
-	if (pci_setup_device(dev) < 0) {
-		kfree(dev);
-		return NULL;
-	}
-
-	/* now put in global tree */
-	strcpy(dev->dev.name,dev->name);
-	strcpy(dev->dev.bus_id,dev->slot_name);
-
-	device_register(&dev->dev);
-	return dev;
-}
-
-struct pci_dev * __devinit pci_scan_slot(struct pci_dev *temp)
-{
-	struct pci_bus *bus = temp->bus;
-	struct pci_dev *dev;
-	struct pci_dev *first_dev = NULL;
-	int func = 0;
-	int is_multi = 0;
-	u8 hdr_type;
-
-	for (func = 0; func < 8; func++, temp->devfn++) {
-		if (func && !is_multi)		/* not a multi-function device */
-			continue;
-		if (pci_read_config_byte(temp, PCI_HEADER_TYPE, &hdr_type))
-			continue;
-		temp->hdr_type = hdr_type & 0x7f;
-
-		dev = pci_scan_device(temp);
-		if (!dev)
-			continue;
-		pci_name_device(dev);
-		if (!func) {
-			is_multi = hdr_type & 0x80;
-			first_dev = dev;
-		}
-
-		/*
-		 * Link the device to both the global PCI device chain and
-		 * the per-bus list of devices.
-		 */
-		list_add_tail(&dev->global_list, &pci_devices);
-		list_add_tail(&dev->bus_list, &bus->devices);
-
-		/* Fix up broken headers */
-		pci_fixup_device(PCI_FIXUP_HEADER, dev);
-	}
-	return first_dev;
-}
-
-unsigned int __devinit pci_do_scan_bus(struct pci_bus *bus)
-{
-	unsigned int devfn, max, pass;
-	struct list_head *ln;
-	struct pci_dev *dev, dev0;
-
-	DBG("Scanning bus %02x\n", bus->number);
-	max = bus->secondary;
-
-	/* Create a device template */
-	memset(&dev0, 0, sizeof(dev0));
-	dev0.bus = bus;
-	dev0.sysdata = bus->sysdata;
-	dev0.dev.parent = bus->dev;
-	dev0.dev.driver = &pci_device_driver;
-
-	/* Go find them, Rover! */
-	for (devfn = 0; devfn < 0x100; devfn += 8) {
-		dev0.devfn = devfn;
-		pci_scan_slot(&dev0);
-	}
-
-	/*
-	 * After performing arch-dependent fixup of the bus, look behind
-	 * all PCI-to-PCI bridges on this bus.
-	 */
-	DBG("Fixups for bus %02x\n", bus->number);
-	pcibios_fixup_bus(bus);
-	for (pass=0; pass < 2; pass++)
-		for (ln=bus->devices.next; ln != &bus->devices; ln=ln->next) {
-			dev = pci_dev_b(ln);
-			if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE || dev->hdr_type == PCI_HEADER_TYPE_CARDBUS)
-				max = pci_scan_bridge(bus, dev, max, pass);
-		}
-
-	/*
-	 * We've scanned the bus and so we know all about what's on
-	 * the other side of any bridges that may be on this bus plus
-	 * any devices.
-	 *
-	 * Return how far we've got finding sub-buses.
-	 */
-	DBG("Bus scan for %02x returning with max=%02x\n", bus->number, max);
-	return max;
-}
-
-int __devinit pci_bus_exists(const struct list_head *list, int nr)
-{
-	const struct list_head *l;
-
-	for(l=list->next; l != list; l = l->next) {
-		const struct pci_bus *b = pci_bus_b(l);
-		if (b->number == nr || pci_bus_exists(&b->children, nr))
-			return 1;
-	}
-	return 0;
-}
-
-struct pci_bus * __devinit pci_alloc_primary_bus(int bus)
-{
-	struct pci_bus *b;
-
-	if (pci_bus_exists(&pci_root_buses, bus)) {
-		/* If we already got to this bus through a different bridge, ignore it */
-		DBG("PCI: Bus %02x already known\n", bus);
-		return NULL;
-	}
-
-	b = pci_alloc_bus();
-	if (!b)
-		return NULL;
-	list_add_tail(&b->node, &pci_root_buses);
-
-	b->dev = kmalloc(sizeof(*(b->dev)),GFP_KERNEL);
-	memset(b->dev,0,sizeof(*(b->dev)));
-	sprintf(b->dev->bus_id,"pci%d",bus);
-	strcpy(b->dev->name,"Host/PCI Bridge");
-	device_register(b->dev);
-
-	b->number = b->secondary = bus;
-	b->resource[0] = &ioport_resource;
-	b->resource[1] = &iomem_resource;
-	return b;
-}
-
-struct pci_bus * __devinit pci_scan_bus(int bus, struct pci_ops *ops, void *sysdata)
-{
-	struct pci_bus *b = pci_alloc_primary_bus(bus);
-	if (b) {
-		b->sysdata = sysdata;
-		b->ops = ops;
-		b->subordinate = pci_do_scan_bus(b);
-	}
-	return b;
-}
-
-#ifdef CONFIG_PM
-
-/*
- * PCI Power management..
- *
- * This needs to be done centralized, so that we power manage PCI
- * devices in the right order: we should not shut down PCI bridges
- * before we've shut down the devices behind them, and we should
- * not wake up devices before we've woken up the bridge to the
- * device.. Eh?
- *
- * We do not touch devices that don't have a driver that exports
- * a suspend/resume function. That is just too dangerous. If the default
- * PCI suspend/resume functions work for a device, the driver can
- * easily implement them (ie just have a suspend function that calls
- * the pci_set_power_state() function).
- */
-
-static int pci_pm_save_state_device(struct pci_dev *dev, u32 state)
-{
-	int error = 0;
-	if (dev) {
-		struct pci_driver *driver = dev->driver;
-		if (driver && driver->save_state) 
-			error = driver->save_state(dev,state);
-	}
-	return error;
-}
-
-static int pci_pm_suspend_device(struct pci_dev *dev, u32 state)
-{
-	int error = 0;
-	if (dev) {
-		struct pci_driver *driver = dev->driver;
-		if (driver && driver->suspend)
-			error = driver->suspend(dev,state);
-	}
-	return error;
-}
-
-static int pci_pm_resume_device(struct pci_dev *dev)
-{
-	int error = 0;
-	if (dev) {
-		struct pci_driver *driver = dev->driver;
-		if (driver && driver->resume)
-			error = driver->resume(dev);
-	}
-	return error;
-}
-
-static int pci_pm_save_state_bus(struct pci_bus *bus, u32 state)
-{
-	struct list_head *list;
-	int error = 0;
-
-	list_for_each(list, &bus->children) {
-		error = pci_pm_save_state_bus(pci_bus_b(list),state);
-		if (error) return error;
-	}
-	list_for_each(list, &bus->devices) {
-		error = pci_pm_save_state_device(pci_dev_b(list),state);
-		if (error) return error;
-	}
-	return 0;
-}
-
-static int pci_pm_suspend_bus(struct pci_bus *bus, u32 state)
-{
-	struct list_head *list;
-
-	/* Walk the bus children list */
-	list_for_each(list, &bus->children) 
-		pci_pm_suspend_bus(pci_bus_b(list),state);
-
-	/* Walk the device children list */
-	list_for_each(list, &bus->devices)
-		pci_pm_suspend_device(pci_dev_b(list),state);
-	return 0;
-}
-
-static int pci_pm_resume_bus(struct pci_bus *bus)
-{
-	struct list_head *list;
-
-	/* Walk the device children list */
-	list_for_each(list, &bus->devices)
-		pci_pm_resume_device(pci_dev_b(list));
-
-	/* And then walk the bus children */
-	list_for_each(list, &bus->children)
-		pci_pm_resume_bus(pci_bus_b(list));
-	return 0;
-}
-
-static int pci_pm_save_state(u32 state)
-{
-	struct list_head *list;
-	struct pci_bus *bus;
-	int error = 0;
-
-	list_for_each(list, &pci_root_buses) {
-		bus = pci_bus_b(list);
-		error = pci_pm_save_state_bus(bus,state);
-		if (!error)
-			error = pci_pm_save_state_device(bus->self,state);
-	}
-	return error;
-}
-
-static int pci_pm_suspend(u32 state)
-{
-	struct list_head *list;
-	struct pci_bus *bus;
-
-	list_for_each(list, &pci_root_buses) {
-		bus = pci_bus_b(list);
-		pci_pm_suspend_bus(bus,state);
-		pci_pm_suspend_device(bus->self,state);
-	}
-	return 0;
-}
-
-static int pci_pm_resume(void)
-{
-	struct list_head *list;
-	struct pci_bus *bus;
-
-	list_for_each(list, &pci_root_buses) {
-		bus = pci_bus_b(list);
-		pci_pm_resume_device(bus->self);
-		pci_pm_resume_bus(bus);
-	}
-	return 0;
-}
-
-static int 
-pci_pm_callback(struct pm_dev *pm_device, pm_request_t rqst, void *data)
-{
-	int error = 0;
-
-	switch (rqst) {
-	case PM_SAVE_STATE:
-		error = pci_pm_save_state((unsigned long)data);
-		break;
-	case PM_SUSPEND:
-		error = pci_pm_suspend((unsigned long)data);
-		break;
-	case PM_RESUME:
-		error = pci_pm_resume();
-		break;
-	default: break;
-	}
-	return error;
-}
-
-#endif
-
-/*
- * Pool allocator ... wraps the pci_alloc_consistent page allocator, so
- * small blocks are easily used by drivers for bus mastering controllers.
- * This should probably be sharing the guts of the slab allocator.
- */
-
-struct pci_pool {	/* the pool */
-	struct list_head	page_list;
-	spinlock_t		lock;
-	size_t			blocks_per_page;
-	size_t			size;
-	struct pci_dev		*dev;
-	size_t			allocation;
-	char			name [32];
-	wait_queue_head_t	waitq;
-};
-
-struct pci_page {	/* cacheable header for 'allocation' bytes */
-	struct list_head	page_list;
-	void			*vaddr;
-	dma_addr_t		dma;
-	unsigned long		bitmap [0];
-};
-
-#define	POOL_TIMEOUT_JIFFIES	((100 /* msec */ * HZ) / 1000)
-#define	POOL_POISON_BYTE	0xa7
-
-
-/**
- * pci_pool_create - Creates a pool of pci consistent memory blocks, for dma.
- * @name: name of pool, for diagnostics
- * @pdev: pci device that will be doing the DMA
- * @size: size of the blocks in this pool.
- * @align: alignment requirement for blocks; must be a power of two
- * @allocation: returned blocks won't cross this boundary (or zero)
- * @mem_flags: SLAB_* flags.
- *
- * Returns a pci allocation pool with the requested characteristics, or
- * null if one can't be created.  Given one of these pools, pci_pool_alloc()
- * may be used to allocate memory.  Such memory will all have "consistent"
- * DMA mappings, accessible by the device and its driver without using
- * cache flushing primitives.  The actual size of blocks allocated may be
- * larger than requested because of alignment.
- *
- * If allocation is nonzero, objects returned from pci_pool_alloc() won't
- * cross that size boundary.  This is useful for devices which have
- * addressing restrictions on individual DMA transfers, such as not crossing
- * boundaries of 4KBytes.
- */
-struct pci_pool *
-pci_pool_create (const char *name, struct pci_dev *pdev,
-	size_t size, size_t align, size_t allocation, int mem_flags)
-{
-	struct pci_pool		*retval;
-
-	if (align == 0)
-		align = 1;
-	if (size == 0)
-		return 0;
-	else if (size < align)
-		size = align;
-	else if ((size % align) != 0) {
-		size += align + 1;
-		size &= ~(align - 1);
-	}
-
-	if (allocation == 0) {
-		if (PAGE_SIZE < size)
-			allocation = size;
-		else
-			allocation = PAGE_SIZE;
-		// FIXME: round up for less fragmentation
-	} else if (allocation < size)
-		return 0;
-
-	if (!(retval = kmalloc (sizeof *retval, mem_flags)))
-		return retval;
-
-	strncpy (retval->name, name, sizeof retval->name);
-	retval->name [sizeof retval->name - 1] = 0;
-
-	retval->dev = pdev;
-	INIT_LIST_HEAD (&retval->page_list);
-	spin_lock_init (&retval->lock);
-	retval->size = size;
-	retval->allocation = allocation;
-	retval->blocks_per_page = allocation / size;
-	init_waitqueue_head (&retval->waitq);
-
-	return retval;
-}
-
-
-static struct pci_page *
-pool_alloc_page (struct pci_pool *pool, int mem_flags)
-{
-	struct pci_page	*page;
-	int		mapsize;
-
-	mapsize = pool->blocks_per_page;
-	mapsize = (mapsize + BITS_PER_LONG - 1) / BITS_PER_LONG;
-	mapsize *= sizeof (long);
-
-	page = (struct pci_page *) kmalloc (mapsize + sizeof *page, mem_flags);
-	if (!page)
-		return 0;
-	page->vaddr = pci_alloc_consistent (pool->dev,
-					    pool->allocation,
-					    &page->dma);
-	if (page->vaddr) {
-		memset (page->bitmap, 0xff, mapsize);	// bit set == free
-#ifdef	CONFIG_DEBUG_SLAB
-		memset (page->vaddr, POOL_POISON_BYTE, pool->allocation);
-#endif
-		list_add (&page->page_list, &pool->page_list);
-	} else {
-		kfree (page);
-		page = 0;
-	}
-	return page;
-}
-
-
-static inline int
-is_page_busy (int blocks, unsigned long *bitmap)
-{
-	while (blocks > 0) {
-		if (*bitmap++ != ~0UL)
-			return 1;
-		blocks -= BITS_PER_LONG;
-	}
-	return 0;
-}
-
-static void
-pool_free_page (struct pci_pool *pool, struct pci_page *page)
-{
-	dma_addr_t	dma = page->dma;
-
-#ifdef	CONFIG_DEBUG_SLAB
-	memset (page->vaddr, POOL_POISON_BYTE, pool->allocation);
-#endif
-	pci_free_consistent (pool->dev, pool->allocation, page->vaddr, dma);
-	list_del (&page->page_list);
-	kfree (page);
-}
-
-
-/**
- * pci_pool_destroy - destroys a pool of pci memory blocks.
- * @pool: pci pool that will be destroyed
- *
- * Caller guarantees that no more memory from the pool is in use,
- * and that nothing will try to use the pool after this call.
- */
-void
-pci_pool_destroy (struct pci_pool *pool)
-{
-	unsigned long		flags;
-
-	spin_lock_irqsave (&pool->lock, flags);
-	while (!list_empty (&pool->page_list)) {
-		struct pci_page		*page;
-		page = list_entry (pool->page_list.next,
-				struct pci_page, page_list);
-		if (is_page_busy (pool->blocks_per_page, page->bitmap)) {
-			printk (KERN_ERR "pci_pool_destroy %s/%s, %p busy\n",
-				pool->dev ? pool->dev->slot_name : NULL,
-				pool->name, page->vaddr);
-			/* leak the still-in-use consistent memory */
-			list_del (&page->page_list);
-			kfree (page);
-		} else
-			pool_free_page (pool, page);
-	}
-	spin_unlock_irqrestore (&pool->lock, flags);
-	kfree (pool);
-}
-
-
-/**
- * pci_pool_alloc - get a block of consistent memory
- * @pool: pci pool that will produce the block
- * @mem_flags: SLAB_KERNEL or SLAB_ATOMIC
- * @handle: pointer to dma address of block
- *
- * This returns the kernel virtual address of a currently unused block,
- * and reports its dma address through the handle.
- * If such a memory block can't be allocated, null is returned.
- */
-void *
-pci_pool_alloc (struct pci_pool *pool, int mem_flags, dma_addr_t *handle)
-{
-	unsigned long		flags;
-	struct list_head	*entry;
-	struct pci_page		*page;
-	int			map, block;
-	size_t			offset;
-	void			*retval;
-
-restart:
-	spin_lock_irqsave (&pool->lock, flags);
-	list_for_each (entry, &pool->page_list) {
-		int		i;
-		page = list_entry (entry, struct pci_page, page_list);
-		/* only cachable accesses here ... */
-		for (map = 0, i = 0;
-				i < pool->blocks_per_page;
-				i += BITS_PER_LONG, map++) {
-			if (page->bitmap [map] == 0)
-				continue;
-			block = ffz (~ page->bitmap [map]);
-			if ((i + block) < pool->blocks_per_page) {
-				clear_bit (block, &page->bitmap [map]);
-				offset = (BITS_PER_LONG * map) + block;
-				offset *= pool->size;
-				goto ready;
-			}
-		}
-	}
-	if (!(page = pool_alloc_page (pool, mem_flags))) {
-		if (mem_flags == SLAB_KERNEL) {
-			DECLARE_WAITQUEUE (wait, current);
-
-			current->state = TASK_INTERRUPTIBLE;
-			add_wait_queue (&pool->waitq, &wait);
-			spin_unlock_irqrestore (&pool->lock, flags);
-
-			schedule_timeout (POOL_TIMEOUT_JIFFIES);
-
-			current->state = TASK_RUNNING;
-			remove_wait_queue (&pool->waitq, &wait);
-			goto restart;
-		}
-		retval = 0;
-		goto done;
-	}
-
-	clear_bit (0, &page->bitmap [0]);
-	offset = 0;
-ready:
-	retval = offset + page->vaddr;
-	*handle = offset + page->dma;
-done:
-	spin_unlock_irqrestore (&pool->lock, flags);
-	return retval;
-}
-
-
-static struct pci_page *
-pool_find_page (struct pci_pool *pool, dma_addr_t dma)
-{
-	unsigned long		flags;
-	struct list_head	*entry;
-	struct pci_page		*page;
-
-	spin_lock_irqsave (&pool->lock, flags);
-	list_for_each (entry, &pool->page_list) {
-		page = list_entry (entry, struct pci_page, page_list);
-		if (dma < page->dma)
-			continue;
-		if (dma < (page->dma + pool->allocation))
-			goto done;
-	}
-	page = 0;
-done:
-	spin_unlock_irqrestore (&pool->lock, flags);
-	return page;
-}
-
-
-/**
- * pci_pool_free - put block back into pci pool
- * @pool: the pci pool holding the block
- * @vaddr: virtual address of block
- * @dma: dma address of block
- *
- * Caller promises neither device nor driver will again touch this block
- * unless it is first re-allocated.
- */
-void
-pci_pool_free (struct pci_pool *pool, void *vaddr, dma_addr_t dma)
-{
-	struct pci_page		*page;
-	unsigned long		flags;
-	int			map, block;
-
-	if ((page = pool_find_page (pool, dma)) == 0) {
-		printk (KERN_ERR "pci_pool_free %s/%s, %p/%lx (bad dma)\n",
-			pool->dev ? pool->dev->slot_name : NULL,
-			pool->name, vaddr, (unsigned long) dma);
-		return;
-	}
-
-	block = dma - page->dma;
-	block /= pool->size;
-	map = block / BITS_PER_LONG;
-	block %= BITS_PER_LONG;
-
-#ifdef	CONFIG_DEBUG_SLAB
-	if (((dma - page->dma) + (void *)page->vaddr) != vaddr) {
-		printk (KERN_ERR "pci_pool_free %s/%s, %p (bad vaddr)/%lx\n",
-			pool->dev ? pool->dev->slot_name : NULL,
-			pool->name, vaddr, (unsigned long) dma);
-		return;
-	}
-	if (page->bitmap [map] & (1UL << block)) {
-		printk (KERN_ERR "pci_pool_free %s/%s, dma %x already free\n",
-			pool->dev ? pool->dev->slot_name : NULL,
-			pool->name, dma);
-		return;
-	}
-	memset (vaddr, POOL_POISON_BYTE, pool->size);
-#endif
-
-	spin_lock_irqsave (&pool->lock, flags);
-	set_bit (block, &page->bitmap [map]);
-	if (waitqueue_active (&pool->waitq))
-		wake_up (&pool->waitq);
-	/*
-	 * Resist a temptation to do
-	 *    if (!is_page_busy(bpp, page->bitmap)) pool_free_page(pool, page);
-	 * it is not interrupt safe. Better have empty pages hang around.
-	 */
-	spin_unlock_irqrestore (&pool->lock, flags);
-}
-
 
 static int __devinit pci_init(void)
 {
@@ -2034,10 +560,6 @@ static int __devinit pci_init(void)
 	pci_for_each_dev(dev) {
 		pci_fixup_device(PCI_FIXUP_FINAL, dev);
 	}
-
-#ifdef CONFIG_PM
-	pm_register(PM_PCI_DEV, 0, pci_pm_callback);
-#endif
 	return 0;
 }
 
@@ -2060,51 +582,19 @@ subsys_initcall(pci_init);
 
 __setup("pci=", pci_setup);
 
-EXPORT_SYMBOL(pci_read_config_byte);
-EXPORT_SYMBOL(pci_read_config_word);
-EXPORT_SYMBOL(pci_read_config_dword);
-EXPORT_SYMBOL(pci_write_config_byte);
-EXPORT_SYMBOL(pci_write_config_word);
-EXPORT_SYMBOL(pci_write_config_dword);
-EXPORT_SYMBOL(pci_devices);
-EXPORT_SYMBOL(pci_root_buses);
 EXPORT_SYMBOL(pci_enable_device);
 EXPORT_SYMBOL(pci_disable_device);
 EXPORT_SYMBOL(pci_find_capability);
 EXPORT_SYMBOL(pci_release_regions);
 EXPORT_SYMBOL(pci_request_regions);
-EXPORT_SYMBOL(pci_find_class);
-EXPORT_SYMBOL(pci_find_device);
-EXPORT_SYMBOL(pci_find_slot);
-EXPORT_SYMBOL(pci_find_subsys);
 EXPORT_SYMBOL(pci_set_master);
 EXPORT_SYMBOL(pci_set_mwi);
 EXPORT_SYMBOL(pci_clear_mwi);
 EXPORT_SYMBOL(pci_set_dma_mask);
 EXPORT_SYMBOL(pci_dac_set_dma_mask);
 EXPORT_SYMBOL(pci_assign_resource);
-EXPORT_SYMBOL(pci_register_driver);
-EXPORT_SYMBOL(pci_unregister_driver);
-EXPORT_SYMBOL(pci_dev_driver);
-EXPORT_SYMBOL(pci_match_device);
 EXPORT_SYMBOL(pci_find_parent_resource);
 
-#ifdef CONFIG_HOTPLUG
-EXPORT_SYMBOL(pci_setup_device);
-EXPORT_SYMBOL(pci_insert_device);
-EXPORT_SYMBOL(pci_remove_device);
-EXPORT_SYMBOL(pci_announce_device_to_drivers);
-EXPORT_SYMBOL(pci_add_new_bus);
-EXPORT_SYMBOL(pci_do_scan_bus);
-EXPORT_SYMBOL(pci_scan_slot);
-#ifdef CONFIG_PROC_FS
-EXPORT_SYMBOL(pci_proc_attach_device);
-EXPORT_SYMBOL(pci_proc_detach_device);
-EXPORT_SYMBOL(pci_proc_attach_bus);
-EXPORT_SYMBOL(pci_proc_detach_bus);
-#endif
-#endif
-
 EXPORT_SYMBOL(pci_set_power_state);
 EXPORT_SYMBOL(pci_save_state);
 EXPORT_SYMBOL(pci_restore_state);
@@ -2126,11 +616,3 @@ EXPORT_SYMBOL(pcibios_find_device);
 
 EXPORT_SYMBOL(isa_dma_bridge_buggy);
 EXPORT_SYMBOL(pci_pci_problems);
-
-/* Pool allocator */
-
-EXPORT_SYMBOL (pci_pool_create);
-EXPORT_SYMBOL (pci_pool_destroy);
-EXPORT_SYMBOL (pci_pool_alloc);
-EXPORT_SYMBOL (pci_pool_free);
-
diff --git a/drivers/pci/pool.c b/drivers/pci/pool.c
new file mode 100644
index 000000000000..700d2abbe278
--- /dev/null
+++ b/drivers/pci/pool.c
@@ -0,0 +1,335 @@
+#include <linux/pci.h>
+#include <linux/module.h>
+
+/*
+ * Pool allocator ... wraps the pci_alloc_consistent page allocator, so
+ * small blocks are easily used by drivers for bus mastering controllers.
+ * This should probably be sharing the guts of the slab allocator.
+ */
+
+struct pci_pool {	/* the pool */
+	struct list_head	page_list;
+	spinlock_t		lock;
+	size_t			blocks_per_page;
+	size_t			size;
+	struct pci_dev		*dev;
+	size_t			allocation;
+	char			name [32];
+	wait_queue_head_t	waitq;
+};
+
+struct pci_page {	/* cacheable header for 'allocation' bytes */
+	struct list_head	page_list;
+	void			*vaddr;
+	dma_addr_t		dma;
+	unsigned long		bitmap [0];
+};
+
+#define	POOL_TIMEOUT_JIFFIES	((100 /* msec */ * HZ) / 1000)
+#define	POOL_POISON_BYTE	0xa7
+
+
+/**
+ * pci_pool_create - Creates a pool of pci consistent memory blocks, for dma.
+ * @name: name of pool, for diagnostics
+ * @pdev: pci device that will be doing the DMA
+ * @size: size of the blocks in this pool.
+ * @align: alignment requirement for blocks; must be a power of two
+ * @allocation: returned blocks won't cross this boundary (or zero)
+ * @mem_flags: SLAB_* flags.
+ *
+ * Returns a pci allocation pool with the requested characteristics, or
+ * null if one can't be created.  Given one of these pools, pci_pool_alloc()
+ * may be used to allocate memory.  Such memory will all have "consistent"
+ * DMA mappings, accessible by the device and its driver without using
+ * cache flushing primitives.  The actual size of blocks allocated may be
+ * larger than requested because of alignment.
+ *
+ * If allocation is nonzero, objects returned from pci_pool_alloc() won't
+ * cross that size boundary.  This is useful for devices which have
+ * addressing restrictions on individual DMA transfers, such as not crossing
+ * boundaries of 4KBytes.
+ */
+struct pci_pool *
+pci_pool_create (const char *name, struct pci_dev *pdev,
+	size_t size, size_t align, size_t allocation, int mem_flags)
+{
+	struct pci_pool		*retval;
+
+	if (align == 0)
+		align = 1;
+	if (size == 0)
+		return 0;
+	else if (size < align)
+		size = align;
+	else if ((size % align) != 0) {
+		size += align + 1;
+		size &= ~(align - 1);
+	}
+
+	if (allocation == 0) {
+		if (PAGE_SIZE < size)
+			allocation = size;
+		else
+			allocation = PAGE_SIZE;
+		// FIXME: round up for less fragmentation
+	} else if (allocation < size)
+		return 0;
+
+	if (!(retval = kmalloc (sizeof *retval, mem_flags)))
+		return retval;
+
+	strncpy (retval->name, name, sizeof retval->name);
+	retval->name [sizeof retval->name - 1] = 0;
+
+	retval->dev = pdev;
+	INIT_LIST_HEAD (&retval->page_list);
+	spin_lock_init (&retval->lock);
+	retval->size = size;
+	retval->allocation = allocation;
+	retval->blocks_per_page = allocation / size;
+	init_waitqueue_head (&retval->waitq);
+
+	return retval;
+}
+
+
+static struct pci_page *
+pool_alloc_page (struct pci_pool *pool, int mem_flags)
+{
+	struct pci_page	*page;
+	int		mapsize;
+
+	mapsize = pool->blocks_per_page;
+	mapsize = (mapsize + BITS_PER_LONG - 1) / BITS_PER_LONG;
+	mapsize *= sizeof (long);
+
+	page = (struct pci_page *) kmalloc (mapsize + sizeof *page, mem_flags);
+	if (!page)
+		return 0;
+	page->vaddr = pci_alloc_consistent (pool->dev,
+					    pool->allocation,
+					    &page->dma);
+	if (page->vaddr) {
+		memset (page->bitmap, 0xff, mapsize);	// bit set == free
+#ifdef	CONFIG_DEBUG_SLAB
+		memset (page->vaddr, POOL_POISON_BYTE, pool->allocation);
+#endif
+		list_add (&page->page_list, &pool->page_list);
+	} else {
+		kfree (page);
+		page = 0;
+	}
+	return page;
+}
+
+
+static inline int
+is_page_busy (int blocks, unsigned long *bitmap)
+{
+	while (blocks > 0) {
+		if (*bitmap++ != ~0UL)
+			return 1;
+		blocks -= BITS_PER_LONG;
+	}
+	return 0;
+}
+
+static void
+pool_free_page (struct pci_pool *pool, struct pci_page *page)
+{
+	dma_addr_t	dma = page->dma;
+
+#ifdef	CONFIG_DEBUG_SLAB
+	memset (page->vaddr, POOL_POISON_BYTE, pool->allocation);
+#endif
+	pci_free_consistent (pool->dev, pool->allocation, page->vaddr, dma);
+	list_del (&page->page_list);
+	kfree (page);
+}
+
+
+/**
+ * pci_pool_destroy - destroys a pool of pci memory blocks.
+ * @pool: pci pool that will be destroyed
+ *
+ * Caller guarantees that no more memory from the pool is in use,
+ * and that nothing will try to use the pool after this call.
+ */
+void
+pci_pool_destroy (struct pci_pool *pool)
+{
+	unsigned long		flags;
+
+	spin_lock_irqsave (&pool->lock, flags);
+	while (!list_empty (&pool->page_list)) {
+		struct pci_page		*page;
+		page = list_entry (pool->page_list.next,
+				struct pci_page, page_list);
+		if (is_page_busy (pool->blocks_per_page, page->bitmap)) {
+			printk (KERN_ERR "pci_pool_destroy %s/%s, %p busy\n",
+				pool->dev ? pool->dev->slot_name : NULL,
+				pool->name, page->vaddr);
+			/* leak the still-in-use consistent memory */
+			list_del (&page->page_list);
+			kfree (page);
+		} else
+			pool_free_page (pool, page);
+	}
+	spin_unlock_irqrestore (&pool->lock, flags);
+	kfree (pool);
+}
+
+
+/**
+ * pci_pool_alloc - get a block of consistent memory
+ * @pool: pci pool that will produce the block
+ * @mem_flags: SLAB_KERNEL or SLAB_ATOMIC
+ * @handle: pointer to dma address of block
+ *
+ * This returns the kernel virtual address of a currently unused block,
+ * and reports its dma address through the handle.
+ * If such a memory block can't be allocated, null is returned.
+ */
+void *
+pci_pool_alloc (struct pci_pool *pool, int mem_flags, dma_addr_t *handle)
+{
+	unsigned long		flags;
+	struct list_head	*entry;
+	struct pci_page		*page;
+	int			map, block;
+	size_t			offset;
+	void			*retval;
+
+restart:
+	spin_lock_irqsave (&pool->lock, flags);
+	list_for_each (entry, &pool->page_list) {
+		int		i;
+		page = list_entry (entry, struct pci_page, page_list);
+		/* only cachable accesses here ... */
+		for (map = 0, i = 0;
+				i < pool->blocks_per_page;
+				i += BITS_PER_LONG, map++) {
+			if (page->bitmap [map] == 0)
+				continue;
+			block = ffz (~ page->bitmap [map]);
+			if ((i + block) < pool->blocks_per_page) {
+				clear_bit (block, &page->bitmap [map]);
+				offset = (BITS_PER_LONG * map) + block;
+				offset *= pool->size;
+				goto ready;
+			}
+		}
+	}
+	if (!(page = pool_alloc_page (pool, mem_flags))) {
+		if (mem_flags == SLAB_KERNEL) {
+			DECLARE_WAITQUEUE (wait, current);
+
+			current->state = TASK_INTERRUPTIBLE;
+			add_wait_queue (&pool->waitq, &wait);
+			spin_unlock_irqrestore (&pool->lock, flags);
+
+			schedule_timeout (POOL_TIMEOUT_JIFFIES);
+
+			current->state = TASK_RUNNING;
+			remove_wait_queue (&pool->waitq, &wait);
+			goto restart;
+		}
+		retval = 0;
+		goto done;
+	}
+
+	clear_bit (0, &page->bitmap [0]);
+	offset = 0;
+ready:
+	retval = offset + page->vaddr;
+	*handle = offset + page->dma;
+done:
+	spin_unlock_irqrestore (&pool->lock, flags);
+	return retval;
+}
+
+
+static struct pci_page *
+pool_find_page (struct pci_pool *pool, dma_addr_t dma)
+{
+	unsigned long		flags;
+	struct list_head	*entry;
+	struct pci_page		*page;
+
+	spin_lock_irqsave (&pool->lock, flags);
+	list_for_each (entry, &pool->page_list) {
+		page = list_entry (entry, struct pci_page, page_list);
+		if (dma < page->dma)
+			continue;
+		if (dma < (page->dma + pool->allocation))
+			goto done;
+	}
+	page = 0;
+done:
+	spin_unlock_irqrestore (&pool->lock, flags);
+	return page;
+}
+
+
+/**
+ * pci_pool_free - put block back into pci pool
+ * @pool: the pci pool holding the block
+ * @vaddr: virtual address of block
+ * @dma: dma address of block
+ *
+ * Caller promises neither device nor driver will again touch this block
+ * unless it is first re-allocated.
+ */
+void
+pci_pool_free (struct pci_pool *pool, void *vaddr, dma_addr_t dma)
+{
+	struct pci_page		*page;
+	unsigned long		flags;
+	int			map, block;
+
+	if ((page = pool_find_page (pool, dma)) == 0) {
+		printk (KERN_ERR "pci_pool_free %s/%s, %p/%lx (bad dma)\n",
+			pool->dev ? pool->dev->slot_name : NULL,
+			pool->name, vaddr, (unsigned long) dma);
+		return;
+	}
+
+	block = dma - page->dma;
+	block /= pool->size;
+	map = block / BITS_PER_LONG;
+	block %= BITS_PER_LONG;
+
+#ifdef	CONFIG_DEBUG_SLAB
+	if (((dma - page->dma) + (void *)page->vaddr) != vaddr) {
+		printk (KERN_ERR "pci_pool_free %s/%s, %p (bad vaddr)/%lx\n",
+			pool->dev ? pool->dev->slot_name : NULL,
+			pool->name, vaddr, (unsigned long) dma);
+		return;
+	}
+	if (page->bitmap [map] & (1UL << block)) {
+		printk (KERN_ERR "pci_pool_free %s/%s, dma %x already free\n",
+			pool->dev ? pool->dev->slot_name : NULL,
+			pool->name, dma);
+		return;
+	}
+	memset (vaddr, POOL_POISON_BYTE, pool->size);
+#endif
+
+	spin_lock_irqsave (&pool->lock, flags);
+	set_bit (block, &page->bitmap [map]);
+	if (waitqueue_active (&pool->waitq))
+		wake_up (&pool->waitq);
+	/*
+	 * Resist a temptation to do
+	 *    if (!is_page_busy(bpp, page->bitmap)) pool_free_page(pool, page);
+	 * it is not interrupt safe. Better have empty pages hang around.
+	 */
+	spin_unlock_irqrestore (&pool->lock, flags);
+}
+
+
+EXPORT_SYMBOL (pci_pool_create);
+EXPORT_SYMBOL (pci_pool_destroy);
+EXPORT_SYMBOL (pci_pool_alloc);
+EXPORT_SYMBOL (pci_pool_free);
diff --git a/drivers/pci/power.c b/drivers/pci/power.c
new file mode 100644
index 000000000000..481ddbb648b9
--- /dev/null
+++ b/drivers/pci/power.c
@@ -0,0 +1,164 @@
+#include <linux/pci.h>
+#include <linux/pm.h>
+
+/*
+ * PCI Power management..
+ *
+ * This needs to be done centralized, so that we power manage PCI
+ * devices in the right order: we should not shut down PCI bridges
+ * before we've shut down the devices behind them, and we should
+ * not wake up devices before we've woken up the bridge to the
+ * device.. Eh?
+ *
+ * We do not touch devices that don't have a driver that exports
+ * a suspend/resume function. That is just too dangerous. If the default
+ * PCI suspend/resume functions work for a device, the driver can
+ * easily implement them (ie just have a suspend function that calls
+ * the pci_set_power_state() function).
+ */
+
+static int pci_pm_save_state_device(struct pci_dev *dev, u32 state)
+{
+	int error = 0;
+	if (dev) {
+		struct pci_driver *driver = dev->driver;
+		if (driver && driver->save_state) 
+			error = driver->save_state(dev,state);
+	}
+	return error;
+}
+
+static int pci_pm_suspend_device(struct pci_dev *dev, u32 state)
+{
+	int error = 0;
+	if (dev) {
+		struct pci_driver *driver = dev->driver;
+		if (driver && driver->suspend)
+			error = driver->suspend(dev,state);
+	}
+	return error;
+}
+
+static int pci_pm_resume_device(struct pci_dev *dev)
+{
+	int error = 0;
+	if (dev) {
+		struct pci_driver *driver = dev->driver;
+		if (driver && driver->resume)
+			error = driver->resume(dev);
+	}
+	return error;
+}
+
+static int pci_pm_save_state_bus(struct pci_bus *bus, u32 state)
+{
+	struct list_head *list;
+	int error = 0;
+
+	list_for_each(list, &bus->children) {
+		error = pci_pm_save_state_bus(pci_bus_b(list),state);
+		if (error) return error;
+	}
+	list_for_each(list, &bus->devices) {
+		error = pci_pm_save_state_device(pci_dev_b(list),state);
+		if (error) return error;
+	}
+	return 0;
+}
+
+static int pci_pm_suspend_bus(struct pci_bus *bus, u32 state)
+{
+	struct list_head *list;
+
+	/* Walk the bus children list */
+	list_for_each(list, &bus->children) 
+		pci_pm_suspend_bus(pci_bus_b(list),state);
+
+	/* Walk the device children list */
+	list_for_each(list, &bus->devices)
+		pci_pm_suspend_device(pci_dev_b(list),state);
+	return 0;
+}
+
+static int pci_pm_resume_bus(struct pci_bus *bus)
+{
+	struct list_head *list;
+
+	/* Walk the device children list */
+	list_for_each(list, &bus->devices)
+		pci_pm_resume_device(pci_dev_b(list));
+
+	/* And then walk the bus children */
+	list_for_each(list, &bus->children)
+		pci_pm_resume_bus(pci_bus_b(list));
+	return 0;
+}
+
+static int pci_pm_save_state(u32 state)
+{
+	struct list_head *list;
+	struct pci_bus *bus;
+	int error = 0;
+
+	list_for_each(list, &pci_root_buses) {
+		bus = pci_bus_b(list);
+		error = pci_pm_save_state_bus(bus,state);
+		if (!error)
+			error = pci_pm_save_state_device(bus->self,state);
+	}
+	return error;
+}
+
+static int pci_pm_suspend(u32 state)
+{
+	struct list_head *list;
+	struct pci_bus *bus;
+
+	list_for_each(list, &pci_root_buses) {
+		bus = pci_bus_b(list);
+		pci_pm_suspend_bus(bus,state);
+		pci_pm_suspend_device(bus->self,state);
+	}
+	return 0;
+}
+
+static int pci_pm_resume(void)
+{
+	struct list_head *list;
+	struct pci_bus *bus;
+
+	list_for_each(list, &pci_root_buses) {
+		bus = pci_bus_b(list);
+		pci_pm_resume_device(bus->self);
+		pci_pm_resume_bus(bus);
+	}
+	return 0;
+}
+
+static int 
+pci_pm_callback(struct pm_dev *pm_device, pm_request_t rqst, void *data)
+{
+	int error = 0;
+
+	switch (rqst) {
+	case PM_SAVE_STATE:
+		error = pci_pm_save_state((unsigned long)data);
+		break;
+	case PM_SUSPEND:
+		error = pci_pm_suspend((unsigned long)data);
+		break;
+	case PM_RESUME:
+		error = pci_pm_resume();
+		break;
+	default: break;
+	}
+	return error;
+}
+
+static int __init pci_pm_init(void)
+{
+	pm_register(PM_PCI_DEV, 0, pci_pm_callback);
+	return 0;
+}
+
+subsys_initcall(pci_pm_init);
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
new file mode 100644
index 000000000000..00a357b366a4
--- /dev/null
+++ b/drivers/pci/probe.c
@@ -0,0 +1,603 @@
+/*
+ * probe.c - PCI detection and setup code
+ */
+
+#include <linux/pci.h>
+#include <linux/module.h>
+
+#undef DEBUG
+
+#ifdef DEBUG
+#define DBG(x...) printk(x)
+#else
+#define DBG(x...)
+#endif
+
+LIST_HEAD(pci_root_buses);
+LIST_HEAD(pci_devices);
+
+extern struct device_driver pci_device_driver;
+
+/*
+ * Translate the low bits of the PCI base
+ * to the resource type
+ */
+static inline unsigned int pci_calc_resource_flags(unsigned int flags)
+{
+	if (flags & PCI_BASE_ADDRESS_SPACE_IO)
+		return IORESOURCE_IO;
+
+	if (flags & PCI_BASE_ADDRESS_MEM_PREFETCH)
+		return IORESOURCE_MEM | IORESOURCE_PREFETCH;
+
+	return IORESOURCE_MEM;
+}
+
+/*
+ * Find the extent of a PCI decode..
+ */
+static u32 pci_size(u32 base, unsigned long mask)
+{
+	u32 size = mask & base;		/* Find the significant bits */
+	size = size & ~(size-1);	/* Get the lowest of them to find the decode size */
+	return size-1;			/* extent = size - 1 */
+}
+
+static void pci_read_bases(struct pci_dev *dev, unsigned int howmany, int rom)
+{
+	unsigned int pos, reg, next;
+	u32 l, sz;
+	struct resource *res;
+
+	for(pos=0; pos<howmany; pos = next) {
+		next = pos+1;
+		res = &dev->resource[pos];
+		res->name = dev->name;
+		reg = PCI_BASE_ADDRESS_0 + (pos << 2);
+		pci_read_config_dword(dev, reg, &l);
+		pci_write_config_dword(dev, reg, ~0);
+		pci_read_config_dword(dev, reg, &sz);
+		pci_write_config_dword(dev, reg, l);
+		if (!sz || sz == 0xffffffff)
+			continue;
+		if (l == 0xffffffff)
+			l = 0;
+		if ((l & PCI_BASE_ADDRESS_SPACE) == PCI_BASE_ADDRESS_SPACE_MEMORY) {
+			res->start = l & PCI_BASE_ADDRESS_MEM_MASK;
+			res->flags |= l & ~PCI_BASE_ADDRESS_MEM_MASK;
+			sz = pci_size(sz, PCI_BASE_ADDRESS_MEM_MASK);
+		} else {
+			res->start = l & PCI_BASE_ADDRESS_IO_MASK;
+			res->flags |= l & ~PCI_BASE_ADDRESS_IO_MASK;
+			sz = pci_size(sz, PCI_BASE_ADDRESS_IO_MASK & 0xffff);
+		}
+		res->end = res->start + (unsigned long) sz;
+		res->flags |= pci_calc_resource_flags(l);
+		if ((l & (PCI_BASE_ADDRESS_SPACE | PCI_BASE_ADDRESS_MEM_TYPE_MASK))
+		    == (PCI_BASE_ADDRESS_SPACE_MEMORY | PCI_BASE_ADDRESS_MEM_TYPE_64)) {
+			pci_read_config_dword(dev, reg+4, &l);
+			next++;
+#if BITS_PER_LONG == 64
+			res->start |= ((unsigned long) l) << 32;
+			res->end = res->start + sz;
+			pci_write_config_dword(dev, reg+4, ~0);
+			pci_read_config_dword(dev, reg+4, &sz);
+			pci_write_config_dword(dev, reg+4, l);
+			if (~sz)
+				res->end = res->start + 0xffffffff +
+						(((unsigned long) ~sz) << 32);
+#else
+			if (l) {
+				printk(KERN_ERR "PCI: Unable to handle 64-bit address for device %s\n", dev->slot_name);
+				res->start = 0;
+				res->flags = 0;
+				continue;
+			}
+#endif
+		}
+	}
+	if (rom) {
+		dev->rom_base_reg = rom;
+		res = &dev->resource[PCI_ROM_RESOURCE];
+		pci_read_config_dword(dev, rom, &l);
+		pci_write_config_dword(dev, rom, ~PCI_ROM_ADDRESS_ENABLE);
+		pci_read_config_dword(dev, rom, &sz);
+		pci_write_config_dword(dev, rom, l);
+		if (l == 0xffffffff)
+			l = 0;
+		if (sz && sz != 0xffffffff) {
+			res->flags = (l & PCI_ROM_ADDRESS_ENABLE) |
+			  IORESOURCE_MEM | IORESOURCE_PREFETCH | IORESOURCE_READONLY | IORESOURCE_CACHEABLE;
+			res->start = l & PCI_ROM_ADDRESS_MASK;
+			sz = pci_size(sz, PCI_ROM_ADDRESS_MASK);
+			res->end = res->start + (unsigned long) sz;
+		}
+		res->name = dev->name;
+	}
+}
+
+void __devinit pci_read_bridge_bases(struct pci_bus *child)
+{
+	struct pci_dev *dev = child->self;
+	u8 io_base_lo, io_limit_lo;
+	u16 mem_base_lo, mem_limit_lo;
+	unsigned long base, limit;
+	struct resource *res;
+	int i;
+
+	if (!dev)		/* It's a host bus, nothing to read */
+		return;
+
+	for(i=0; i<3; i++)
+		child->resource[i] = &dev->resource[PCI_BRIDGE_RESOURCES+i];
+
+	res = child->resource[0];
+	pci_read_config_byte(dev, PCI_IO_BASE, &io_base_lo);
+	pci_read_config_byte(dev, PCI_IO_LIMIT, &io_limit_lo);
+	base = (io_base_lo & PCI_IO_RANGE_MASK) << 8;
+	limit = (io_limit_lo & PCI_IO_RANGE_MASK) << 8;
+
+	if ((io_base_lo & PCI_IO_RANGE_TYPE_MASK) == PCI_IO_RANGE_TYPE_32) {
+		u16 io_base_hi, io_limit_hi;
+		pci_read_config_word(dev, PCI_IO_BASE_UPPER16, &io_base_hi);
+		pci_read_config_word(dev, PCI_IO_LIMIT_UPPER16, &io_limit_hi);
+		base |= (io_base_hi << 16);
+		limit |= (io_limit_hi << 16);
+	}
+
+	if (base && base <= limit) {
+		res->flags = (io_base_lo & PCI_IO_RANGE_TYPE_MASK) | IORESOURCE_IO;
+		res->start = base;
+		res->end = limit + 0xfff;
+		res->name = child->name;
+	} else {
+		/*
+		 * Ugh. We don't know enough about this bridge. Just assume
+		 * that it's entirely transparent.
+		 */
+		printk(KERN_ERR "Unknown bridge resource %d: assuming transparent\n", 0);
+		child->resource[0] = child->parent->resource[0];
+	}
+
+	res = child->resource[1];
+	pci_read_config_word(dev, PCI_MEMORY_BASE, &mem_base_lo);
+	pci_read_config_word(dev, PCI_MEMORY_LIMIT, &mem_limit_lo);
+	base = (mem_base_lo & PCI_MEMORY_RANGE_MASK) << 16;
+	limit = (mem_limit_lo & PCI_MEMORY_RANGE_MASK) << 16;
+	if (base && base <= limit) {
+		res->flags = (mem_base_lo & PCI_MEMORY_RANGE_TYPE_MASK) | IORESOURCE_MEM;
+		res->start = base;
+		res->end = limit + 0xfffff;
+		res->name = child->name;
+	} else {
+		/* See comment above. Same thing */
+		printk(KERN_ERR "Unknown bridge resource %d: assuming transparent\n", 1);
+		child->resource[1] = child->parent->resource[1];
+	}
+
+	res = child->resource[2];
+	pci_read_config_word(dev, PCI_PREF_MEMORY_BASE, &mem_base_lo);
+	pci_read_config_word(dev, PCI_PREF_MEMORY_LIMIT, &mem_limit_lo);
+	base = (mem_base_lo & PCI_PREF_RANGE_MASK) << 16;
+	limit = (mem_limit_lo & PCI_PREF_RANGE_MASK) << 16;
+
+	if ((mem_base_lo & PCI_PREF_RANGE_TYPE_MASK) == PCI_PREF_RANGE_TYPE_64) {
+		u32 mem_base_hi, mem_limit_hi;
+		pci_read_config_dword(dev, PCI_PREF_BASE_UPPER32, &mem_base_hi);
+		pci_read_config_dword(dev, PCI_PREF_LIMIT_UPPER32, &mem_limit_hi);
+#if BITS_PER_LONG == 64
+		base |= ((long) mem_base_hi) << 32;
+		limit |= ((long) mem_limit_hi) << 32;
+#else
+		if (mem_base_hi || mem_limit_hi) {
+			printk(KERN_ERR "PCI: Unable to handle 64-bit address space for %s\n", child->name);
+			return;
+		}
+#endif
+	}
+	if (base && base <= limit) {
+		res->flags = (mem_base_lo & PCI_MEMORY_RANGE_TYPE_MASK) | IORESOURCE_MEM | IORESOURCE_PREFETCH;
+		res->start = base;
+		res->end = limit + 0xfffff;
+		res->name = child->name;
+	} else {
+		/* See comments above */
+		printk(KERN_ERR "Unknown bridge resource %d: assuming transparent\n", 2);
+		child->resource[2] = child->parent->resource[2];
+	}
+}
+
+static struct pci_bus * __devinit pci_alloc_bus(void)
+{
+	struct pci_bus *b;
+
+	b = kmalloc(sizeof(*b), GFP_KERNEL);
+	if (b) {
+		memset(b, 0, sizeof(*b));
+		INIT_LIST_HEAD(&b->children);
+		INIT_LIST_HEAD(&b->devices);
+	}
+	return b;
+}
+
+struct pci_bus * __devinit pci_add_new_bus(struct pci_bus *parent, struct pci_dev *dev, int busnr)
+{
+	struct pci_bus *child;
+	int i;
+
+	/*
+	 * Allocate a new bus, and inherit stuff from the parent..
+	 */
+	child = pci_alloc_bus();
+
+	list_add_tail(&child->node, &parent->children);
+	child->self = dev;
+	dev->subordinate = child;
+	child->parent = parent;
+	child->ops = parent->ops;
+	child->sysdata = parent->sysdata;
+	child->dev = &dev->dev;
+
+	/*
+	 * Set up the primary, secondary and subordinate
+	 * bus numbers.
+	 */
+	child->number = child->secondary = busnr;
+	child->primary = parent->secondary;
+	child->subordinate = 0xff;
+
+	/* Set up default resource pointers.. */
+	for (i = 0; i < 4; i++)
+		child->resource[i] = &dev->resource[PCI_BRIDGE_RESOURCES+i];
+
+	return child;
+}
+
+unsigned int __devinit pci_do_scan_bus(struct pci_bus *bus);
+
+/*
+ * If it's a bridge, configure it and scan the bus behind it.
+ * For CardBus bridges, we don't scan behind as the devices will
+ * be handled by the bridge driver itself.
+ *
+ * We need to process bridges in two passes -- first we scan those
+ * already configured by the BIOS and after we are done with all of
+ * them, we proceed to assigning numbers to the remaining buses in
+ * order to avoid overlaps between old and new bus numbers.
+ */
+static int __devinit pci_scan_bridge(struct pci_bus *bus, struct pci_dev * dev, int max, int pass)
+{
+	unsigned int buses;
+	unsigned short cr;
+	struct pci_bus *child;
+	int is_cardbus = (dev->hdr_type == PCI_HEADER_TYPE_CARDBUS);
+
+	pci_read_config_dword(dev, PCI_PRIMARY_BUS, &buses);
+	DBG("Scanning behind PCI bridge %s, config %06x, pass %d\n", dev->slot_name, buses & 0xffffff, pass);
+	if ((buses & 0xffff00) && !pcibios_assign_all_busses()) {
+		/*
+		 * Bus already configured by firmware, process it in the first
+		 * pass and just note the configuration.
+		 */
+		if (pass)
+			return max;
+		child = pci_add_new_bus(bus, dev, 0);
+		child->primary = buses & 0xFF;
+		child->secondary = (buses >> 8) & 0xFF;
+		child->subordinate = (buses >> 16) & 0xFF;
+		child->number = child->secondary;
+		if (!is_cardbus) {
+			unsigned int cmax = pci_do_scan_bus(child);
+			if (cmax > max) max = cmax;
+		} else {
+			unsigned int cmax = child->subordinate;
+			if (cmax > max) max = cmax;
+		}
+	} else {
+		/*
+		 * We need to assign a number to this bus which we always
+		 * do in the second pass. We also keep all address decoders
+		 * on the bridge disabled during scanning.  FIXME: Why?
+		 */
+		if (!pass)
+			return max;
+		pci_read_config_word(dev, PCI_COMMAND, &cr);
+		pci_write_config_word(dev, PCI_COMMAND, 0x0000);
+		pci_write_config_word(dev, PCI_STATUS, 0xffff);
+
+		child = pci_add_new_bus(bus, dev, ++max);
+		buses = (buses & 0xff000000)
+		      | ((unsigned int)(child->primary)     <<  0)
+		      | ((unsigned int)(child->secondary)   <<  8)
+		      | ((unsigned int)(child->subordinate) << 16);
+		/*
+		 * We need to blast all three values with a single write.
+		 */
+		pci_write_config_dword(dev, PCI_PRIMARY_BUS, buses);
+		if (!is_cardbus) {
+			/* Now we can scan all subordinate buses... */
+			max = pci_do_scan_bus(child);
+		} else {
+			/*
+			 * For CardBus bridges, we leave 4 bus numbers
+			 * as cards with a PCI-to-PCI bridge can be
+			 * inserted later.
+			 */
+			max += 3;
+		}
+		/*
+		 * Set the subordinate bus number to its real value.
+		 */
+		child->subordinate = max;
+		pci_write_config_byte(dev, PCI_SUBORDINATE_BUS, max);
+		pci_write_config_word(dev, PCI_COMMAND, cr);
+	}
+	sprintf(child->name, (is_cardbus ? "PCI CardBus #%02x" : "PCI Bus #%02x"), child->number);
+
+	return max;
+}
+
+/*
+ * Read interrupt line and base address registers.
+ * The architecture-dependent code can tweak these, of course.
+ */
+static void pci_read_irq(struct pci_dev *dev)
+{
+	unsigned char irq;
+
+	pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &irq);
+	if (irq)
+		pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq);
+	dev->irq = irq;
+}
+
+/**
+ * pci_setup_device - fill in class and map information of a device
+ * @dev: the device structure to fill
+ *
+ * Initialize the device structure with information about the device's 
+ * vendor,class,memory and IO-space addresses,IRQ lines etc.
+ * Called at initialisation of the PCI subsystem and by CardBus services.
+ * Returns 0 on success and -1 if unknown type of device (not normal, bridge
+ * or CardBus).
+ */
+int pci_setup_device(struct pci_dev * dev)
+{
+	u32 class;
+
+	sprintf(dev->slot_name, "%02x:%02x.%d", dev->bus->number, PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
+	sprintf(dev->name, "PCI device %04x:%04x", dev->vendor, dev->device);
+	
+	pci_read_config_dword(dev, PCI_CLASS_REVISION, &class);
+	class >>= 8;				    /* upper 3 bytes */
+	dev->class = class;
+	class >>= 8;
+
+	DBG("Found %02x:%02x [%04x/%04x] %06x %02x\n", dev->bus->number, dev->devfn, dev->vendor, dev->device, class, dev->hdr_type);
+
+	/* "Unknown power state" */
+	dev->current_state = 4;
+
+	switch (dev->hdr_type) {		    /* header type */
+	case PCI_HEADER_TYPE_NORMAL:		    /* standard header */
+		if (class == PCI_CLASS_BRIDGE_PCI)
+			goto bad;
+		pci_read_irq(dev);
+		pci_read_bases(dev, 6, PCI_ROM_ADDRESS);
+		pci_read_config_word(dev, PCI_SUBSYSTEM_VENDOR_ID, &dev->subsystem_vendor);
+		pci_read_config_word(dev, PCI_SUBSYSTEM_ID, &dev->subsystem_device);
+		break;
+
+	case PCI_HEADER_TYPE_BRIDGE:		    /* bridge header */
+		if (class != PCI_CLASS_BRIDGE_PCI)
+			goto bad;
+		pci_read_bases(dev, 2, PCI_ROM_ADDRESS1);
+		break;
+
+	case PCI_HEADER_TYPE_CARDBUS:		    /* CardBus bridge header */
+		if (class != PCI_CLASS_BRIDGE_CARDBUS)
+			goto bad;
+		pci_read_irq(dev);
+		pci_read_bases(dev, 1, 0);
+		pci_read_config_word(dev, PCI_CB_SUBSYSTEM_VENDOR_ID, &dev->subsystem_vendor);
+		pci_read_config_word(dev, PCI_CB_SUBSYSTEM_ID, &dev->subsystem_device);
+		break;
+
+	default:				    /* unknown header */
+		printk(KERN_ERR "PCI: device %s has unknown header type %02x, ignoring.\n",
+			dev->slot_name, dev->hdr_type);
+		return -1;
+
+	bad:
+		printk(KERN_ERR "PCI: %s: class %x doesn't match header type %02x. Ignoring class.\n",
+		       dev->slot_name, class, dev->hdr_type);
+		dev->class = PCI_CLASS_NOT_DEFINED;
+	}
+
+	/* We found a fine healthy device, go go go... */
+	return 0;
+}
+
+/*
+ * Read the config data for a PCI device, sanity-check it
+ * and fill in the dev structure...
+ */
+struct pci_dev * __devinit pci_scan_device(struct pci_dev *temp)
+{
+	struct pci_dev *dev;
+	u32 l;
+
+	if (pci_read_config_dword(temp, PCI_VENDOR_ID, &l))
+		return NULL;
+
+	/* some broken boards return 0 or ~0 if a slot is empty: */
+	if (l == 0xffffffff || l == 0x00000000 || l == 0x0000ffff || l == 0xffff0000)
+		return NULL;
+
+	dev = kmalloc(sizeof(*dev), GFP_KERNEL);
+	if (!dev)
+		return NULL;
+
+	memcpy(dev, temp, sizeof(*dev));
+	dev->vendor = l & 0xffff;
+	dev->device = (l >> 16) & 0xffff;
+
+	/* Assume 32-bit PCI; let 64-bit PCI cards (which are far rarer)
+	   set this higher, assuming the system even supports it.  */
+	dev->dma_mask = 0xffffffff;
+	if (pci_setup_device(dev) < 0) {
+		kfree(dev);
+		return NULL;
+	}
+
+	/* now put in global tree */
+	strcpy(dev->dev.name,dev->name);
+	strcpy(dev->dev.bus_id,dev->slot_name);
+
+	device_register(&dev->dev);
+	return dev;
+}
+
+struct pci_dev * __devinit pci_scan_slot(struct pci_dev *temp)
+{
+	struct pci_bus *bus = temp->bus;
+	struct pci_dev *dev;
+	struct pci_dev *first_dev = NULL;
+	int func = 0;
+	int is_multi = 0;
+	u8 hdr_type;
+
+	for (func = 0; func < 8; func++, temp->devfn++) {
+		if (func && !is_multi)		/* not a multi-function device */
+			continue;
+		if (pci_read_config_byte(temp, PCI_HEADER_TYPE, &hdr_type))
+			continue;
+		temp->hdr_type = hdr_type & 0x7f;
+
+		dev = pci_scan_device(temp);
+		if (!dev)
+			continue;
+		pci_name_device(dev);
+		if (!func) {
+			is_multi = hdr_type & 0x80;
+			first_dev = dev;
+		}
+
+		/*
+		 * Link the device to both the global PCI device chain and
+		 * the per-bus list of devices.
+		 */
+		list_add_tail(&dev->global_list, &pci_devices);
+		list_add_tail(&dev->bus_list, &bus->devices);
+
+		/* Fix up broken headers */
+		pci_fixup_device(PCI_FIXUP_HEADER, dev);
+	}
+	return first_dev;
+}
+
+unsigned int __devinit pci_do_scan_bus(struct pci_bus *bus)
+{
+	unsigned int devfn, max, pass;
+	struct list_head *ln;
+	struct pci_dev *dev, dev0;
+
+	DBG("Scanning bus %02x\n", bus->number);
+	max = bus->secondary;
+
+	/* Create a device template */
+	memset(&dev0, 0, sizeof(dev0));
+	dev0.bus = bus;
+	dev0.sysdata = bus->sysdata;
+	dev0.dev.parent = bus->dev;
+	dev0.dev.driver = &pci_device_driver;
+
+	/* Go find them, Rover! */
+	for (devfn = 0; devfn < 0x100; devfn += 8) {
+		dev0.devfn = devfn;
+		pci_scan_slot(&dev0);
+	}
+
+	/*
+	 * After performing arch-dependent fixup of the bus, look behind
+	 * all PCI-to-PCI bridges on this bus.
+	 */
+	DBG("Fixups for bus %02x\n", bus->number);
+	pcibios_fixup_bus(bus);
+	for (pass=0; pass < 2; pass++)
+		for (ln=bus->devices.next; ln != &bus->devices; ln=ln->next) {
+			dev = pci_dev_b(ln);
+			if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE || dev->hdr_type == PCI_HEADER_TYPE_CARDBUS)
+				max = pci_scan_bridge(bus, dev, max, pass);
+		}
+
+	/*
+	 * We've scanned the bus and so we know all about what's on
+	 * the other side of any bridges that may be on this bus plus
+	 * any devices.
+	 *
+	 * Return how far we've got finding sub-buses.
+	 */
+	DBG("Bus scan for %02x returning with max=%02x\n", bus->number, max);
+	return max;
+}
+
+int __devinit pci_bus_exists(const struct list_head *list, int nr)
+{
+	const struct list_head *l;
+
+	for(l=list->next; l != list; l = l->next) {
+		const struct pci_bus *b = pci_bus_b(l);
+		if (b->number == nr || pci_bus_exists(&b->children, nr))
+			return 1;
+	}
+	return 0;
+}
+
+struct pci_bus * __devinit pci_alloc_primary_bus(int bus)
+{
+	struct pci_bus *b;
+
+	if (pci_bus_exists(&pci_root_buses, bus)) {
+		/* If we already got to this bus through a different bridge, ignore it */
+		DBG("PCI: Bus %02x already known\n", bus);
+		return NULL;
+	}
+
+	b = pci_alloc_bus();
+	if (!b)
+		return NULL;
+	list_add_tail(&b->node, &pci_root_buses);
+
+	b->dev = kmalloc(sizeof(*(b->dev)),GFP_KERNEL);
+	memset(b->dev,0,sizeof(*(b->dev)));
+	sprintf(b->dev->bus_id,"pci%d",bus);
+	strcpy(b->dev->name,"Host/PCI Bridge");
+	device_register(b->dev);
+
+	b->number = b->secondary = bus;
+	b->resource[0] = &ioport_resource;
+	b->resource[1] = &iomem_resource;
+	return b;
+}
+
+struct pci_bus * __devinit pci_scan_bus(int bus, struct pci_ops *ops, void *sysdata)
+{
+	struct pci_bus *b = pci_alloc_primary_bus(bus);
+	if (b) {
+		b->sysdata = sysdata;
+		b->ops = ops;
+		b->subordinate = pci_do_scan_bus(b);
+	}
+	return b;
+}
+
+EXPORT_SYMBOL(pci_devices);
+EXPORT_SYMBOL(pci_root_buses);
+
+#ifdef CONFIG_HOTPLUG
+EXPORT_SYMBOL(pci_setup_device);
+EXPORT_SYMBOL(pci_add_new_bus);
+EXPORT_SYMBOL(pci_do_scan_bus);
+EXPORT_SYMBOL(pci_scan_slot);
+#endif
diff --git a/drivers/pci/proc.c b/drivers/pci/proc.c
index de6f42c53a40..aa3371c76d29 100644
--- a/drivers/pci/proc.c
+++ b/drivers/pci/proc.c
@@ -6,11 +6,9 @@
  *	Copyright (c) 1997--1999 Martin Mares <mj@ucw.cz>
  */
 
-#include <linux/types.h>
-#include <linux/kernel.h>
 #include <linux/pci.h>
+#include <linux/module.h>
 #include <linux/proc_fs.h>
-#include <linux/init.h>
 #include <linux/seq_file.h>
 #include <linux/smp_lock.h>
 
@@ -615,3 +613,11 @@ static int __init pci_proc_init(void)
 }
 
 __initcall(pci_proc_init);
+
+#ifdef CONFIG_HOTPLUG
+EXPORT_SYMBOL(pci_proc_attach_device);
+EXPORT_SYMBOL(pci_proc_detach_device);
+EXPORT_SYMBOL(pci_proc_attach_bus);
+EXPORT_SYMBOL(pci_proc_detach_bus);
+#endif
+
diff --git a/drivers/pci/search.c b/drivers/pci/search.c
new file mode 100644
index 000000000000..5d88a020fb4a
--- /dev/null
+++ b/drivers/pci/search.c
@@ -0,0 +1,110 @@
+#include <linux/pci.h>
+#include <linux/module.h>
+
+/**
+ * pci_find_slot - locate PCI device from a given PCI slot
+ * @bus: number of PCI bus on which desired PCI device resides
+ * @devfn: encodes number of PCI slot in which the desired PCI 
+ * device resides and the logical device number within that slot 
+ * in case of multi-function devices.
+ *
+ * Given a PCI bus and slot/function number, the desired PCI device 
+ * is located in system global list of PCI devices.  If the device
+ * is found, a pointer to its data structure is returned.  If no 
+ * device is found, %NULL is returned.
+ */
+struct pci_dev *
+pci_find_slot(unsigned int bus, unsigned int devfn)
+{
+	struct pci_dev *dev;
+
+	pci_for_each_dev(dev) {
+		if (dev->bus->number == bus && dev->devfn == devfn)
+			return dev;
+	}
+	return NULL;
+}
+
+/**
+ * pci_find_subsys - begin or continue searching for a PCI device by vendor/subvendor/device/subdevice id
+ * @vendor: PCI vendor id to match, or %PCI_ANY_ID to match all vendor ids
+ * @device: PCI device id to match, or %PCI_ANY_ID to match all device ids
+ * @ss_vendor: PCI subsystem vendor id to match, or %PCI_ANY_ID to match all vendor ids
+ * @ss_device: PCI subsystem device id to match, or %PCI_ANY_ID to match all device ids
+ * @from: Previous PCI device found in search, or %NULL for new search.
+ *
+ * Iterates through the list of known PCI devices.  If a PCI device is
+ * found with a matching @vendor, @device, @ss_vendor and @ss_device, a pointer to its
+ * device structure is returned.  Otherwise, %NULL is returned.
+ * A new search is initiated by passing %NULL to the @from argument.
+ * Otherwise if @from is not %NULL, searches continue from next device on the global list.
+ */
+struct pci_dev *
+pci_find_subsys(unsigned int vendor, unsigned int device,
+		unsigned int ss_vendor, unsigned int ss_device,
+		const struct pci_dev *from)
+{
+	struct list_head *n = from ? from->global_list.next : pci_devices.next;
+
+	while (n != &pci_devices) {
+		struct pci_dev *dev = pci_dev_g(n);
+		if ((vendor == PCI_ANY_ID || dev->vendor == vendor) &&
+		    (device == PCI_ANY_ID || dev->device == device) &&
+		    (ss_vendor == PCI_ANY_ID || dev->subsystem_vendor == ss_vendor) &&
+		    (ss_device == PCI_ANY_ID || dev->subsystem_device == ss_device))
+			return dev;
+		n = n->next;
+	}
+	return NULL;
+}
+
+
+/**
+ * pci_find_device - begin or continue searching for a PCI device by vendor/device id
+ * @vendor: PCI vendor id to match, or %PCI_ANY_ID to match all vendor ids
+ * @device: PCI device id to match, or %PCI_ANY_ID to match all device ids
+ * @from: Previous PCI device found in search, or %NULL for new search.
+ *
+ * Iterates through the list of known PCI devices.  If a PCI device is
+ * found with a matching @vendor and @device, a pointer to its device structure is
+ * returned.  Otherwise, %NULL is returned.
+ * A new search is initiated by passing %NULL to the @from argument.
+ * Otherwise if @from is not %NULL, searches continue from next device on the global list.
+ */
+struct pci_dev *
+pci_find_device(unsigned int vendor, unsigned int device, const struct pci_dev *from)
+{
+	return pci_find_subsys(vendor, device, PCI_ANY_ID, PCI_ANY_ID, from);
+}
+
+
+/**
+ * pci_find_class - begin or continue searching for a PCI device by class
+ * @class: search for a PCI device with this class designation
+ * @from: Previous PCI device found in search, or %NULL for new search.
+ *
+ * Iterates through the list of known PCI devices.  If a PCI device is
+ * found with a matching @class, a pointer to its device structure is
+ * returned.  Otherwise, %NULL is returned.
+ * A new search is initiated by passing %NULL to the @from argument.
+ * Otherwise if @from is not %NULL, searches continue from next device
+ * on the global list.
+ */
+struct pci_dev *
+pci_find_class(unsigned int class, const struct pci_dev *from)
+{
+	struct list_head *n = from ? from->global_list.next : pci_devices.next;
+
+	while (n != &pci_devices) {
+		struct pci_dev *dev = pci_dev_g(n);
+		if (dev->class == class)
+			return dev;
+		n = n->next;
+	}
+	return NULL;
+}
+
+EXPORT_SYMBOL(pci_find_class);
+EXPORT_SYMBOL(pci_find_device);
+EXPORT_SYMBOL(pci_find_slot);
+EXPORT_SYMBOL(pci_find_subsys);