Merge branch 'master' of /pub/scm/linux/kernel/git/torvalds/linux-2.6

24 files changed, 596 insertions, 11294 deletions

diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig
index 7f31991772e..f187fd8aeed 100644
--- a/drivers/pci/Kconfig
+++ b/drivers/pci/Kconfig
@@ -30,23 +30,6 @@ config PCI_LEGACY_PROC
 
 	  When in doubt, say N.
 
-config PCI_NAMES
-	bool "PCI device name database"
-	depends on PCI
-	---help---
-	  By default, the kernel contains a database of all known PCI device
-	  names to make the information in /proc/pci, /proc/ioports and
-	  similar files comprehensible to the user. 
-
-	  This database increases size of the kernel image by about 80KB. This 
-	  memory is freed after the system boots up if CONFIG_HOTPLUG is not set.
-
-	  Anyway, if you are building an installation floppy or kernel for an 
-	  embedded system where kernel image size really matters, you can disable 
-	  this feature and you'll get device ID numbers instead of names.
-
-	  When in doubt, say Y.
-
 config PCI_DEBUG
 	bool "PCI Debugging"
 	depends on PCI && DEBUG_KERNEL
diff --git a/drivers/pci/Makefile b/drivers/pci/Makefile
index 3657f6199c4..716df015f8d 100644
--- a/drivers/pci/Makefile
+++ b/drivers/pci/Makefile
@@ -3,14 +3,9 @@
 #
 
 obj-y		+= access.o bus.o probe.o remove.o pci.o quirks.o \
-			names.o pci-driver.o search.o pci-sysfs.o \
-			rom.o
+			pci-driver.o search.o pci-sysfs.o rom.o setup-res.o
 obj-$(CONFIG_PROC_FS) += proc.o
 
-ifndef CONFIG_SPARC64
-obj-y += setup-res.o
-endif
-
 obj-$(CONFIG_HOTPLUG) += hotplug.o
 
 # Build the PCI Hotplug drivers if we were asked to
@@ -46,21 +41,6 @@ ifeq ($(CONFIG_PCI_DEBUG),y)
 EXTRA_CFLAGS += -DDEBUG
 endif
 
-hostprogs-y := gen-devlist
-
-# Dependencies on generated files need to be listed explicitly
-$(obj)/names.o: $(obj)/devlist.h $(obj)/classlist.h
-$(obj)/classlist.h: $(obj)/devlist.h
-
-# And that's how to generate them
-quiet_cmd_devlist = DEVLIST $@
-      cmd_devlist = ( cd $(obj); ./gen-devlist ) < $<
-$(obj)/devlist.h: $(src)/pci.ids $(obj)/gen-devlist
-	$(call cmd,devlist)
-
-# Files generated that shall be removed upon make clean
-clean-files := devlist.h classlist.h
-
 # Build PCI Express stuff if needed
 obj-$(CONFIG_PCIEPORTBUS) += pcie/
 
diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c
index fb9a11243d2..eed67d9e73b 100644
--- a/drivers/pci/bus.c
+++ b/drivers/pci/bus.c
@@ -140,16 +140,65 @@ void __devinit pci_bus_add_devices(struct pci_bus *bus)
 void pci_enable_bridges(struct pci_bus *bus)
 {
 	struct pci_dev *dev;
+	int retval;
 
 	list_for_each_entry(dev, &bus->devices, bus_list) {
 		if (dev->subordinate) {
-			pci_enable_device(dev);
+			retval = pci_enable_device(dev);
 			pci_set_master(dev);
 			pci_enable_bridges(dev->subordinate);
 		}
 	}
 }
 
+/** pci_walk_bus - walk devices on/under bus, calling callback.
+ *  @top      bus whose devices should be walked
+ *  @cb       callback to be called for each device found
+ *  @userdata arbitrary pointer to be passed to callback.
+ *
+ *  Walk the given bus, including any bridged devices
+ *  on buses under this bus.  Call the provided callback
+ *  on each device found.
+ */
+void pci_walk_bus(struct pci_bus *top, void (*cb)(struct pci_dev *, void *),
+		  void *userdata)
+{
+	struct pci_dev *dev;
+	struct pci_bus *bus;
+	struct list_head *next;
+
+	bus = top;
+	spin_lock(&pci_bus_lock);
+	next = top->devices.next;
+	for (;;) {
+		if (next == &bus->devices) {
+			/* end of this bus, go up or finish */
+			if (bus == top)
+				break;
+			next = bus->self->bus_list.next;
+			bus = bus->self->bus;
+			continue;
+		}
+		dev = list_entry(next, struct pci_dev, bus_list);
+		pci_dev_get(dev);
+		if (dev->subordinate) {
+			/* this is a pci-pci bridge, do its devices next */
+			next = dev->subordinate->devices.next;
+			bus = dev->subordinate;
+		} else
+			next = dev->bus_list.next;
+		spin_unlock(&pci_bus_lock);
+
+		/* Run device routines with the bus unlocked */
+		cb(dev, userdata);
+
+		spin_lock(&pci_bus_lock);
+		pci_dev_put(dev);
+	}
+	spin_unlock(&pci_bus_lock);
+}
+EXPORT_SYMBOL_GPL(pci_walk_bus);
+
 EXPORT_SYMBOL(pci_bus_alloc_resource);
 EXPORT_SYMBOL_GPL(pci_bus_add_device);
 EXPORT_SYMBOL(pci_bus_add_devices);
diff --git a/drivers/pci/gen-devlist.c b/drivers/pci/gen-devlist.c
deleted file mode 100644
index 8abfc499fde..00000000000
--- a/drivers/pci/gen-devlist.c
+++ /dev/null
@@ -1,132 +0,0 @@
-/*
- *	Generate devlist.h and classlist.h from the PCI ID file.
- *
- *	(c) 1999--2002 Martin Mares <mj@ucw.cz>
- */
-
-#include <stdio.h>
-#include <string.h>
-
-#define MAX_NAME_SIZE 200
-
-static void
-pq(FILE *f, const char *c, int len)
-{
-	int i = 1;
-	while (*c && i != len) {
-		if (*c == '"')
-			fprintf(f, "\\\"");
-		else {
-			fputc(*c, f);
-			if (*c == '?' && c[1] == '?') {
-				/* Avoid trigraphs */
-				fprintf(f, "\" \"");
-			}
-		}
-		c++;
-		i++;
-	}
-}
-
-int
-main(void)
-{
-	char line[1024], *c, *bra, vend[8];
-	int vendors = 0;
-	int mode = 0;
-	int lino = 0;
-	int vendor_len = 0;
-	FILE *devf, *clsf;
-
-	devf = fopen("devlist.h", "w");
-	clsf = fopen("classlist.h", "w");
-	if (!devf || !clsf) {
-		fprintf(stderr, "Cannot create output file!\n");
-		return 1;
-	}
-
-	while (fgets(line, sizeof(line)-1, stdin)) {
-		lino++;
-		if ((c = strchr(line, '\n')))
-			*c = 0;
-		if (!line[0] || line[0] == '#')
-			continue;
-		if (line[1] == ' ') {
-			if (line[0] == 'C' && strlen(line) > 4 && line[4] == ' ') {
-				vend[0] = line[2];
-				vend[1] = line[3];
-				vend[2] = 0;
-				mode = 2;
-			} else goto err;
-		}
-		else if (line[0] == '\t') {
-			if (line[1] == '\t')
-				continue;
-			switch (mode) {
-			case 1:
-				if (strlen(line) > 5 && line[5] == ' ') {
-					c = line + 5;
-					while (*c == ' ')
-						*c++ = 0;
-					if (vendor_len + strlen(c) + 1 > MAX_NAME_SIZE) {
-						/* Too long, try cutting off long description */
-						bra = strchr(c, '[');
-						if (bra && bra > c && bra[-1] == ' ')
-							bra[-1] = 0;
-						if (vendor_len + strlen(c) + 1 > MAX_NAME_SIZE) {
-							fprintf(stderr, "Line %d: Device name too long. Name truncated.\n", lino);
-							fprintf(stderr, "%s\n", c);
-							/*return 1;*/
-						}
-					}
-					fprintf(devf, "\tDEVICE(%s,%s,\"", vend, line+1);
-					pq(devf, c, MAX_NAME_SIZE - vendor_len - 1);
-					fputs("\")\n", devf);
-				} else goto err;
-				break;
-			case 2:
-				if (strlen(line) > 3 && line[3] == ' ') {
-					c = line + 3;
-					while (*c == ' ')
-						*c++ = 0;
-					fprintf(clsf, "CLASS(%s%s, \"%s\")\n", vend, line+1, c);
-				} else goto err;
-				break;
-			default:
-				goto err;
-			}
-		} else if (strlen(line) > 4 && line[4] == ' ') {
-			c = line + 4;
-			while (*c == ' ')
-				*c++ = 0;
-			if (vendors)
-				fputs("ENDVENDOR()\n\n", devf);
-			vendors++;
-			strcpy(vend, line);
-			vendor_len = strlen(c);
-			if (vendor_len + 24 > MAX_NAME_SIZE) {
-				fprintf(stderr, "Line %d: Vendor name too long\n", lino);
-				return 1;
-			}
-			fprintf(devf, "VENDOR(%s,\"", vend);
-			pq(devf, c, 0);
-			fputs("\")\n", devf);
-			mode = 1;
-		} else {
-		err:
-			fprintf(stderr, "Line %d: Syntax error in mode %d: %s\n", lino, mode, line);
-			return 1;
-		}
-	}
-	fputs("ENDVENDOR()\n\
-\n\
-#undef VENDOR\n\
-#undef DEVICE\n\
-#undef ENDVENDOR\n", devf);
-	fputs("\n#undef CLASS\n", clsf);
-
-	fclose(devf);
-	fclose(clsf);
-
-	return 0;
-}
diff --git a/drivers/pci/hotplug/Makefile b/drivers/pci/hotplug/Makefile
index 246586a3d91..3c71e3077ff 100644
--- a/drivers/pci/hotplug/Makefile
+++ b/drivers/pci/hotplug/Makefile
@@ -41,8 +41,7 @@ acpiphp-objs		:=	acpiphp_core.o	\
 
 rpaphp-objs		:=	rpaphp_core.o	\
 				rpaphp_pci.o	\
-				rpaphp_slot.o	\
-				rpaphp_vio.o
+				rpaphp_slot.o
 
 rpadlpar_io-objs	:=	rpadlpar_core.o \
 				rpadlpar_sysfs.o
diff --git a/drivers/pci/hotplug/pciehp.h b/drivers/pci/hotplug/pciehp.h
index 2b92b9e8c91..061ead21ef1 100644
--- a/drivers/pci/hotplug/pciehp.h
+++ b/drivers/pci/hotplug/pciehp.h
@@ -302,7 +302,7 @@ static inline void return_resource(struct pci_resource **head, struct pci_resour
 
 static inline void make_slot_name(char *buffer, int buffer_size, struct slot *slot)
 {
-	snprintf(buffer, buffer_size, "%d", slot->number);
+	snprintf(buffer, buffer_size, "%04d_%04d", slot->bus, slot->number);
 }
 
 enum php_ctlr_type {
diff --git a/drivers/pci/hotplug/rpadlpar_core.c b/drivers/pci/hotplug/rpadlpar_core.c
index 86b384e4271..4ada15111af 100644
--- a/drivers/pci/hotplug/rpadlpar_core.c
+++ b/drivers/pci/hotplug/rpadlpar_core.c
@@ -19,33 +19,36 @@
 #include <asm/pci-bridge.h>
 #include <asm/semaphore.h>
 #include <asm/rtas.h>
+#include <asm/vio.h>
 #include "../pci.h"
 #include "rpaphp.h"
 #include "rpadlpar.h"
 
 static DECLARE_MUTEX(rpadlpar_sem);
 
+#define DLPAR_MODULE_NAME "rpadlpar_io"
+
 #define NODE_TYPE_VIO  1
 #define NODE_TYPE_SLOT 2
 #define NODE_TYPE_PHB  3
 
-static struct device_node *find_php_slot_vio_node(char *drc_name)
+static struct device_node *find_vio_slot_node(char *drc_name)
 {
-	struct device_node *child;
 	struct device_node *parent = of_find_node_by_name(NULL, "vdevice");
-	char *loc_code;
+	struct device_node *dn = NULL;
+	char *name;
+	int rc;
 
 	if (!parent)
 		return NULL;
 
-	for (child = of_get_next_child(parent, NULL);
-		child; child = of_get_next_child(parent, child)) {
-		loc_code = get_property(child, "ibm,loc-code", NULL);
-		if (loc_code && !strncmp(loc_code, drc_name, strlen(drc_name)))
-			return child;
+	while ((dn = of_get_next_child(parent, dn))) {
+		rc = rpaphp_get_drc_props(dn, NULL, &name, NULL, NULL);
+		if ((rc == 0) && (!strcmp(drc_name, name)))
+			break;
 	}
 
-	return NULL;
+	return dn;
 }
 
 /* Find dlpar-capable pci node that contains the specified name and type */
@@ -67,7 +70,7 @@ static struct device_node *find_php_slot_pci_node(char *drc_name,
 	return np;
 }
 
-static struct device_node *find_newly_added_node(char *drc_name, int *node_type)
+static struct device_node *find_dlpar_node(char *drc_name, int *node_type)
 {
 	struct device_node *dn;
 
@@ -83,7 +86,7 @@ static struct device_node *find_newly_added_node(char *drc_name, int *node_type)
 		return dn;
 	}
 
-	dn = find_php_slot_vio_node(drc_name);
+	dn = find_vio_slot_node(drc_name);
 	if (dn) {
 		*node_type = NODE_TYPE_VIO;
 		return dn;
@@ -92,14 +95,14 @@ static struct device_node *find_newly_added_node(char *drc_name, int *node_type)
 	return NULL;
 }
 
-static struct slot *find_slot(char *drc_name)
+static struct slot *find_slot(struct device_node *dn)
 {
 	struct list_head *tmp, *n;
 	struct slot *slot;
 
         list_for_each_safe(tmp, n, &rpaphp_slot_head) {
                 slot = list_entry(tmp, struct slot, rpaphp_slot_list);
-                if (strcmp(slot->location, drc_name) == 0)
+                if (slot->dn == dn)
                         return slot;
         }
 
@@ -164,6 +167,20 @@ static int pci_add_secondary_bus(struct device_node *dn,
 	return 0;
 }
 
+static struct pci_dev *dlpar_find_new_dev(struct pci_bus *parent,
+					struct device_node *dev_dn)
+{
+	struct pci_dev *tmp = NULL;
+	struct device_node *child_dn;
+
+	list_for_each_entry(tmp, &parent->devices, bus_list) {
+		child_dn = pci_device_to_OF_node(tmp);
+		if (child_dn == dev_dn)
+			return tmp;
+	}
+	return NULL;
+}
+
 static struct pci_dev *dlpar_pci_add_bus(struct device_node *dn)
 {
 	struct pci_controller *hose = dn->phb;
@@ -179,49 +196,28 @@ static struct pci_dev *dlpar_pci_add_bus(struct device_node *dn)
 	pci_bus_add_devices(hose->bus);
 
 	/* Confirm new bridge dev was created */
-	dev = rpaphp_find_pci_dev(dn);
-	if (!dev) {
-		printk(KERN_ERR "%s: failed to add pci device\n", __FUNCTION__);
-		return NULL;
-	}
+	dev = dlpar_find_new_dev(hose->bus, dn);
+	if (dev) {
+		if (dev->hdr_type != PCI_HEADER_TYPE_BRIDGE) {
+			printk(KERN_ERR "%s: unexpected header type %d\n",
+				__FUNCTION__, dev->hdr_type);
+			return NULL;
+		}
 
-	if (dev->hdr_type != PCI_HEADER_TYPE_BRIDGE) {
-		printk(KERN_ERR "%s: unexpected header type %d\n",
-			__FUNCTION__, dev->hdr_type);
-		return NULL;
+		if (pci_add_secondary_bus(dn, dev))
+			return NULL;
 	}
 
-	if (pci_add_secondary_bus(dn, dev))
-		return NULL;
-
 	return dev;
 }
 
-static int dlpar_pci_remove_bus(struct pci_dev *bridge_dev)
+static int dlpar_add_pci_slot(char *drc_name, struct device_node *dn)
 {
-	struct pci_bus *secondary_bus;
+	struct pci_dev *dev;
+	int rc;
 
-	if (!bridge_dev) {
-		printk(KERN_ERR "%s: unexpected null device\n",
-			__FUNCTION__);
+	if (rpaphp_find_pci_bus(dn))
 		return -EINVAL;
-	}
-
-	secondary_bus = bridge_dev->subordinate;
-
-	if (unmap_bus_range(secondary_bus)) {
-		printk(KERN_ERR "%s: failed to unmap bus range\n",
-			__FUNCTION__);
-		return -ERANGE;
-	}
-
-	pci_remove_bus_device(bridge_dev);
-	return 0;
-}
-
-static inline int dlpar_add_pci_slot(char *drc_name, struct device_node *dn)
-{
-	struct pci_dev *dev;
 
 	/* Add pci bus */
 	dev = dlpar_pci_add_bus(dn);
@@ -231,6 +227,21 @@ static inline int dlpar_add_pci_slot(char *drc_name, struct device_node *dn)
 		return -EIO;
 	}
 
+	if (dn->child) {
+		rc = rpaphp_config_pci_adapter(dev->subordinate);
+		if (rc < 0) {
+			printk(KERN_ERR "%s: unable to enable slot %s\n",
+				__FUNCTION__, drc_name);
+			return -EIO;
+		}
+	}
+
+	/* Add hotplug slot */
+	if (rpaphp_add_slot(dn)) {
+		printk(KERN_ERR "%s: unable to add hotplug slot %s\n",
+			__FUNCTION__, drc_name);
+		return -EIO;
+	}
 	return 0;
 }
 
@@ -255,47 +266,67 @@ static int dlpar_remove_root_bus(struct pci_controller *phb)
 	return 0;
 }
 
-static int dlpar_remove_phb(struct slot *slot)
+static int dlpar_remove_phb(char *drc_name, struct device_node *dn)
 {
-	struct pci_controller *phb;
-	struct device_node *dn;
+	struct slot *slot;
 	int rc = 0;
 
-	dn = slot->dn;
-	if (!dn) {
-		printk(KERN_ERR "%s: unexpected NULL slot device node\n",
-				__FUNCTION__);
-		return -EIO;
-	}
-
-	phb = dn->phb;
-	if (!phb) {
-		printk(KERN_ERR "%s: unexpected NULL phb pointer\n",
-				__FUNCTION__);
-		return -EIO;
-	}
+	if (!rpaphp_find_pci_bus(dn))
+		return -EINVAL;
 
-	if (rpaphp_remove_slot(slot)) {
-		printk(KERN_ERR "%s: unable to remove hotplug slot %s\n",
-			__FUNCTION__, slot->location);
-		return -EIO;
+	slot = find_slot(dn);
+	if (slot) {
+		/* Remove hotplug slot */
+		if (rpaphp_remove_slot(slot)) {
+			printk(KERN_ERR
+				"%s: unable to remove hotplug slot %s\n",
+				__FUNCTION__, drc_name);
+			return -EIO;
+		}
 	}
 
-	rc = dlpar_remove_root_bus(phb);
+	BUG_ON(!dn->phb);
+	rc = dlpar_remove_root_bus(dn->phb);
 	if (rc < 0)
 		return rc;
 
+	dn->phb = NULL;
+
 	return 0;
 }
 
-static int dlpar_add_phb(struct device_node *dn)
+static int dlpar_add_phb(char *drc_name, struct device_node *dn)
 {
 	struct pci_controller *phb;
 
+	if (dn->phb) {
+		/* PHB already exists */
+		return -EINVAL;
+	}
+
 	phb = init_phb_dynamic(dn);
 	if (!phb)
+		return -EIO;
+
+	if (rpaphp_add_slot(dn)) {
+		printk(KERN_ERR "%s: unable to add hotplug slot %s\n",
+			__FUNCTION__, drc_name);
+		return -EIO;
+	}
+	return 0;
+}
+
+static int dlpar_add_vio_slot(char *drc_name, struct device_node *dn)
+{
+	if (vio_find_node(dn))
 		return -EINVAL;
 
+	if (!vio_register_device_node(dn)) {
+		printk(KERN_ERR
+			"%s: failed to register vio node %s\n",
+			__FUNCTION__, drc_name);
+		return -EIO;
+	}
 	return 0;
 }
 
@@ -316,18 +347,13 @@ int dlpar_add_slot(char *drc_name)
 {
 	struct device_node *dn = NULL;
 	int node_type;
-	int rc = 0;
+	int rc = -EIO;
 
 	if (down_interruptible(&rpadlpar_sem))
 		return -ERESTARTSYS;
 
-	/* Check for existing hotplug slot */
-	if (find_slot(drc_name)) {
-		rc = -EINVAL;
-		goto exit;
-	}
-
-	dn = find_newly_added_node(drc_name, &node_type);
+	/* Find newly added node */
+	dn = find_dlpar_node(drc_name, &node_type);
 	if (!dn) {
 		rc = -ENODEV;
 		goto exit;
@@ -335,24 +361,17 @@ int dlpar_add_slot(char *drc_name)
 
 	switch (node_type) {
 		case NODE_TYPE_VIO:
-			/* Just add hotplug slot */
+			rc = dlpar_add_vio_slot(drc_name, dn);
 			break;
 		case NODE_TYPE_SLOT:
 			rc = dlpar_add_pci_slot(drc_name, dn);
 			break;
 		case NODE_TYPE_PHB:
-			rc = dlpar_add_phb(dn);
+			rc = dlpar_add_phb(drc_name, dn);
 			break;
-		default:
-			printk("%s: unexpected node type\n", __FUNCTION__);
-			return -EIO;
 	}
 
-	if (!rc && rpaphp_add_slot(dn)) {
-		printk(KERN_ERR "%s: unable to add hotplug slot %s\n",
-			__FUNCTION__, drc_name);
-		rc = -EIO;
-	}
+	printk(KERN_INFO "%s: slot %s added\n", DLPAR_MODULE_NAME, drc_name);
 exit:
 	up(&rpadlpar_sem);
 	return rc;
@@ -366,17 +385,17 @@ exit:
  * of an I/O Slot.
  * Return Codes:
  * 0			Success
- * -EIO			Internal  Error
+ * -EINVAL		Vio dev doesn't exist
  */
-int dlpar_remove_vio_slot(struct slot *slot, char *drc_name)
+static int dlpar_remove_vio_slot(char *drc_name, struct device_node *dn)
 {
-	/* Remove hotplug slot */
+	struct vio_dev *vio_dev;
 
-	if (rpaphp_remove_slot(slot)) {
-		printk(KERN_ERR "%s: unable to remove hotplug slot %s\n",
-			__FUNCTION__, drc_name);
-		return -EIO;
-	}
+	vio_dev = vio_find_node(dn);
+	if (!vio_dev)
+		return -EINVAL;
+
+	vio_unregister_device(vio_dev);
 	return 0;
 }
 
@@ -391,31 +410,34 @@ int dlpar_remove_vio_slot(struct slot *slot, char *drc_name)
  * -ENODEV		Not a valid drc_name
  * -EIO			Internal PCI Error
  */
-int dlpar_remove_pci_slot(struct slot *slot, char *drc_name)
+int dlpar_remove_pci_slot(char *drc_name, struct device_node *dn)
 {
-	struct pci_dev *bridge_dev;
+	struct pci_bus *bus;
+	struct slot *slot;
 
-	bridge_dev = slot->bridge;
-	if (!bridge_dev) {
-		printk(KERN_ERR "%s: unexpected null bridge device\n",
-			__FUNCTION__);
-		return -EIO;
-	}
+	bus = rpaphp_find_pci_bus(dn);
+	if (!bus)
+		return -EINVAL;
 
-	/* Remove hotplug slot */
-	if (rpaphp_remove_slot(slot)) {
-		printk(KERN_ERR "%s: unable to remove hotplug slot %s\n",
-			__FUNCTION__, drc_name);
-		return -EIO;
+	slot = find_slot(dn);
+	if (slot) {
+		/* Remove hotplug slot */
+		if (rpaphp_remove_slot(slot)) {
+			printk(KERN_ERR
+				"%s: unable to remove hotplug slot %s\n",
+				__FUNCTION__, drc_name);
+			return -EIO;
+		}
 	}
 
-	/* Remove pci bus */
-
-	if (dlpar_pci_remove_bus(bridge_dev)) {
-		printk(KERN_ERR "%s: unable to remove pci bus %s\n",
-			__FUNCTION__, drc_name);
-		return -EIO;
+	if (unmap_bus_range(bus)) {
+		printk(KERN_ERR "%s: failed to unmap bus range\n",
+			__FUNCTION__);
+		return -ERANGE;
 	}
+
+	BUG_ON(!bus->self);
+	pci_remove_bus_device(bus->self);
 	return 0;
 }
 
@@ -434,38 +456,31 @@ int dlpar_remove_pci_slot(struct slot *slot, char *drc_name)
  */
 int dlpar_remove_slot(char *drc_name)
 {
-	struct slot *slot;
+	struct device_node *dn;
+	int node_type;
 	int rc = 0;
 
 	if (down_interruptible(&rpadlpar_sem))
 		return -ERESTARTSYS;
 
-	if (!find_php_slot_vio_node(drc_name) &&
-	    !find_php_slot_pci_node(drc_name, "SLOT") &&
-	    !find_php_slot_pci_node(drc_name, "PHB")) {
+	dn = find_dlpar_node(drc_name, &node_type);
+	if (!dn) {
 		rc = -ENODEV;
 		goto exit;
 	}
 
-	slot = find_slot(drc_name);
-	if (!slot) {
-		rc = -EINVAL;
-		goto exit;
-	}
-	
-	if (slot->type == PHB) {
-		rc = dlpar_remove_phb(slot);
-	} else {
-		switch (slot->dev_type) {
-			case PCI_DEV:
-				rc = dlpar_remove_pci_slot(slot, drc_name);
-				break;
-
-			case VIO_DEV:
-				rc = dlpar_remove_vio_slot(slot, drc_name);
-				break;
-		}
+	switch (node_type) {
+		case NODE_TYPE_VIO:
+			rc = dlpar_remove_vio_slot(drc_name, dn);
+			break;
+		case NODE_TYPE_PHB:
+			rc = dlpar_remove_phb(drc_name, dn);
+			break;
+		case NODE_TYPE_SLOT:
+			rc = dlpar_remove_pci_slot(drc_name, dn);
+			break;
 	}
+	printk(KERN_INFO "%s: slot %s removed\n", DLPAR_MODULE_NAME, drc_name);
 exit:
 	up(&rpadlpar_sem);
 	return rc;
diff --git a/drivers/pci/hotplug/rpaphp.h b/drivers/pci/hotplug/rpaphp.h
index 81746e6e0e0..61d94d1e29c 100644
--- a/drivers/pci/hotplug/rpaphp.h
+++ b/drivers/pci/hotplug/rpaphp.h
@@ -30,10 +30,6 @@
 #include <linux/pci.h>
 #include "pci_hotplug.h"
 
-#define	PHB     2
-#define	HOTPLUG	1
-#define	EMBEDDED 0
-
 #define DR_INDICATOR 9002
 #define DR_ENTITY_SENSE 9003
 
@@ -61,10 +57,6 @@ extern int debug;
 #define info(format, arg...) printk(KERN_INFO "%s: " format, MY_NAME , ## arg)
 #define warn(format, arg...) printk(KERN_WARNING "%s: " format, MY_NAME , ## arg)
 
-/* slot types */
-#define VIO_DEV	1
-#define PCI_DEV	2
-
 /* slot states */
 
 #define	NOT_VALID	3
@@ -72,11 +64,6 @@ extern int debug;
 #define	CONFIGURED	1
 #define	EMPTY		0
 
-struct rpaphp_pci_func {
-	struct pci_dev *pci_dev;
-	struct list_head sibling;
-};
-
 /*
  * struct slot - slot information for each *physical* slot
  */
@@ -88,15 +75,9 @@ struct slot {
 	u32 power_domain;
 	char *name;
 	char *location;
-	u8 removable;
-	u8 dev_type;		/* VIO or PCI */
-	struct device_node *dn;	/* slot's device_node in OFDT */
-				/* dn has phb info */
-	struct pci_dev *bridge;	/* slot's pci_dev in pci_devices */
-	union {
-		struct list_head *pci_devs; /* pci_devs in PCI slot */
-		struct vio_dev *vio_dev; /* vio_dev in VIO slot */
-	} dev;
+	struct device_node *dn;
+	struct pci_bus *bus;
+	struct list_head *pci_devs;
 	struct hotplug_slot *hotplug_slot;
 };
 
@@ -107,13 +88,13 @@ extern int num_slots;
 /* function prototypes */
 
 /* rpaphp_pci.c */
-extern struct pci_dev *rpaphp_find_pci_dev(struct device_node *dn);
+extern struct pci_bus *rpaphp_find_pci_bus(struct device_node *dn);
 extern int rpaphp_claim_resource(struct pci_dev *dev, int resource);
 extern int rpaphp_enable_pci_slot(struct slot *slot);
 extern int register_pci_slot(struct slot *slot);
 extern int rpaphp_unconfig_pci_adapter(struct slot *slot);
 extern int rpaphp_get_pci_adapter_status(struct slot *slot, int is_init, u8 * value);
-extern struct hotplug_slot *rpaphp_find_hotplug_slot(struct pci_dev *dev);
+extern int rpaphp_config_pci_adapter(struct pci_bus *bus);
 
 /* rpaphp_core.c */
 extern int rpaphp_add_slot(struct device_node *dn);
@@ -121,12 +102,6 @@ extern int rpaphp_remove_slot(struct slot *slot);
 extern int rpaphp_get_drc_props(struct device_node *dn, int *drc_index,
 		char **drc_name, char **drc_type, int *drc_power_domain);
 
-/* rpaphp_vio.c */
-extern int rpaphp_get_vio_adapter_status(struct slot *slot, int is_init, u8 * value);
-extern int rpaphp_unconfig_vio_adapter(struct slot *slot);
-extern int register_vio_slot(struct device_node *dn);
-extern int rpaphp_enable_vio_slot(struct slot *slot);
-
 /* rpaphp_slot.c */
 extern void dealloc_slot_struct(struct slot *slot);
 extern struct slot *alloc_slot_struct(struct device_node *dn, int drc_index, char *drc_name, int power_domain);
diff --git a/drivers/pci/hotplug/rpaphp_core.c b/drivers/pci/hotplug/rpaphp_core.c
index 29117a3a328..c830ff0acdc 100644
--- a/drivers/pci/hotplug/rpaphp_core.c
+++ b/drivers/pci/hotplug/rpaphp_core.c
@@ -152,17 +152,7 @@ static int get_adapter_status(struct hotplug_slot *hotplug_slot, u8 * value)
 	int retval = 0;
 
 	down(&rpaphp_sem);
-	/*  have to go through this */
-	switch (slot->dev_type) {
-	case PCI_DEV:
-		retval = rpaphp_get_pci_adapter_status(slot, 0, value);
-		break;
-	case VIO_DEV:
-		retval = rpaphp_get_vio_adapter_status(slot, 0, value);
-		break;
-	default:
-		retval = -EINVAL;
-	}
+	retval = rpaphp_get_pci_adapter_status(slot, 0, value);
 	up(&rpaphp_sem);
 	return retval;
 }
@@ -317,34 +307,6 @@ static int is_php_dn(struct device_node *dn, int **indexes, int **names,
 	return 0;
 }
 
-static int is_dr_dn(struct device_node *dn, int **indexes, int **names,
-		int **types, int **power_domains, int **my_drc_index)
-{
-	int rc;
-
-	*my_drc_index = (int *) get_property(dn, "ibm,my-drc-index", NULL);
-	if(!*my_drc_index)
-		return (0);
-
-	if (!dn->parent)
-		return (0);
-
-	rc = get_children_props(dn->parent, indexes, names, types,
-				power_domains);
-	return (rc >= 0);
-}
-
-static inline int is_vdevice_root(struct device_node *dn)
-{
-	return !strcmp(dn->name, "vdevice");
-}
-
-int is_dlpar_type(const char *type_str)
-{
-	/* Only register DLPAR-capable nodes of drc-type PHB or SLOT */
-	return (!strcmp(type_str, "PHB") || !strcmp(type_str, "SLOT"));
-}
-
 /****************************************************************
  *	rpaphp not only registers PCI hotplug slots(HOTPLUG), 
  *	but also logical DR slots(EMBEDDED).
@@ -356,54 +318,33 @@ int rpaphp_add_slot(struct device_node *dn)
 {
 	struct slot *slot;
 	int retval = 0;
-	int i, *my_drc_index, slot_type;
+	int i;
 	int *indexes, *names, *types, *power_domains;
 	char *name, *type;
 
 	dbg("Entry %s: dn->full_name=%s\n", __FUNCTION__, dn->full_name);
 
-	if (dn->parent && is_vdevice_root(dn->parent)) {
-		/* register a VIO device */
-		retval = register_vio_slot(dn);
-		goto exit;
-	}
-
 	/* register PCI devices */
 	if (dn->name != 0 && strcmp(dn->name, "pci") == 0) {
-		if (is_php_dn(dn, &indexes, &names, &types, &power_domains))  
-			slot_type = HOTPLUG;
-		else if (is_dr_dn(dn, &indexes, &names, &types, &power_domains, &my_drc_index)) 
-			slot_type = EMBEDDED;
-		else goto exit;
+		if (!is_php_dn(dn, &indexes, &names, &types, &power_domains))
+			goto exit;
 
 		name = (char *) &names[1];
 		type = (char *) &types[1];
 		for (i = 0; i < indexes[0]; i++,
-	     		name += (strlen(name) + 1), type += (strlen(type) + 1)) {
-
-			if (slot_type == HOTPLUG ||
-			    (slot_type == EMBEDDED &&
-			     indexes[i + 1] == my_drc_index[0] &&
-			     is_dlpar_type(type))) {
-				if (!(slot = alloc_slot_struct(dn, indexes[i + 1], name,
-					       power_domains[i + 1]))) {
-					retval = -ENOMEM;
-					goto exit;
-				}
-				if (!strcmp(type, "PHB"))
-					slot->type = PHB;
-				else if (slot_type == EMBEDDED)
-					slot->type = EMBEDDED;
-				else
-					slot->type = simple_strtoul(type, NULL, 10);
+	     		name += (strlen(name) + 1), type += (strlen(type) + 1)) 		{
+
+			if (!(slot = alloc_slot_struct(dn, indexes[i + 1], name,
+				       power_domains[i + 1]))) {
+				retval = -ENOMEM;
+				goto exit;
+			}
+			slot->t