Merge branch 'master' of /home/trondmy/kernel/linux-2.6/

Conflicts:

	fs/nfs/inode.c
	fs/super.c

Fix conflicts between patch 'NFS: Split fs/nfs/inode.c' and patch
'VFS: Permit filesystem to override root dentry on mount'

10 files changed, 169 insertions, 442 deletions

diff --git a/arch/powerpc/platforms/pseries/Makefile b/arch/powerpc/platforms/pseries/Makefile
index 930898635c9f..e5e0ff466904 100644
--- a/arch/powerpc/platforms/pseries/Makefile
+++ b/arch/powerpc/platforms/pseries/Makefile
@@ -1,8 +1,11 @@
+ifeq ($(CONFIG_PPC64),y)
+EXTRA_CFLAGS		+= -mno-minimal-toc
+endif
+
 obj-y			:= pci.o lpar.o hvCall.o nvram.o reconfig.o \
 			   setup.o iommu.o ras.o rtasd.o pci_dlpar.o \
 			   firmware.o
 obj-$(CONFIG_SMP)	+= smp.o
-obj-$(CONFIG_IBMVIO)	+= vio.o
 obj-$(CONFIG_XICS)	+= xics.o
 obj-$(CONFIG_SCANLOG)	+= scanlog.o
 obj-$(CONFIG_EEH)	+= eeh.o eeh_cache.o eeh_driver.o eeh_event.o
diff --git a/arch/powerpc/platforms/pseries/eeh_cache.c b/arch/powerpc/platforms/pseries/eeh_cache.c
index d4a402c5866c..98c23aec85be 100644
--- a/arch/powerpc/platforms/pseries/eeh_cache.c
+++ b/arch/powerpc/platforms/pseries/eeh_cache.c
@@ -304,6 +304,8 @@ void __init pci_addr_cache_build(void)
 		pci_addr_cache_insert_device(dev);
 
 		dn = pci_device_to_OF_node(dev);
+		if (!dn)
+			continue;
 		pci_dev_get (dev);  /* matching put is in eeh_remove_device() */
 		PCI_DN(dn)->pcidev = dev;
 	}
diff --git a/arch/powerpc/platforms/pseries/eeh_driver.c b/arch/powerpc/platforms/pseries/eeh_driver.c
index 1fba695e32e8..0ec9a5445b95 100644
--- a/arch/powerpc/platforms/pseries/eeh_driver.c
+++ b/arch/powerpc/platforms/pseries/eeh_driver.c
@@ -23,9 +23,8 @@
  *
  */
 #include <linux/delay.h>
-#include <linux/irq.h>
 #include <linux/interrupt.h>
-#include <linux/notifier.h>
+#include <linux/irq.h>
 #include <linux/pci.h>
 #include <asm/eeh.h>
 #include <asm/eeh_event.h>
@@ -202,7 +201,11 @@ static void eeh_report_failure(struct pci_dev *dev, void *userdata)
 
 static int eeh_reset_device (struct pci_dn *pe_dn, struct pci_bus *bus)
 {
-	int rc;
+	int cnt, rc;
+
+	/* pcibios will clear the counter; save the value */
+	cnt = pe_dn->eeh_freeze_count;
+
 	if (bus)
 		pcibios_remove_pci_devices(bus);
 
@@ -241,6 +244,7 @@ static int eeh_reset_device (struct pci_dn *pe_dn, struct pci_bus *bus)
 		ssleep (5);
 		pcibios_add_pci_devices(bus);
 	}
+	pe_dn->eeh_freeze_count = cnt;
 
 	return 0;
 }
@@ -250,23 +254,29 @@ static int eeh_reset_device (struct pci_dn *pe_dn, struct pci_bus *bus)
  */
 #define MAX_WAIT_FOR_RECOVERY 15
 
-void handle_eeh_events (struct eeh_event *event)
+struct pci_dn * handle_eeh_events (struct eeh_event *event)
 {
 	struct device_node *frozen_dn;
 	struct pci_dn *frozen_pdn;
 	struct pci_bus *frozen_bus;
 	int rc = 0;
 	enum pci_ers_result result = PCI_ERS_RESULT_NONE;
-	const char *pci_str, *drv_str;
+	const char *location, *pci_str, *drv_str;
 
 	frozen_dn = find_device_pe(event->dn);
 	frozen_bus = pcibios_find_pci_bus(frozen_dn);
 
 	if (!frozen_dn) {
-		printk(KERN_ERR "EEH: Error: Cannot find partition endpoint for %s\n",
-		        pci_name(event->dev));
-		return;
+
+		location = (char *) get_property(event->dn, "ibm,loc-code", NULL);
+		location = location ? location : "unknown";
+		printk(KERN_ERR "EEH: Error: Cannot find partition endpoint "
+		                "for location=%s pci addr=%s\n",
+		        location, pci_name(event->dev));
+		return NULL;
 	}
+	location = (char *) get_property(frozen_dn, "ibm,loc-code", NULL);
+	location = location ? location : "unknown";
 
 	/* There are two different styles for coming up with the PE.
 	 * In the old style, it was the highest EEH-capable device
@@ -278,9 +288,10 @@ void handle_eeh_events (struct eeh_event *event)
 		frozen_bus = pcibios_find_pci_bus (frozen_dn->parent);
 
 	if (!frozen_bus) {
-		printk(KERN_ERR "EEH: Cannot find PCI bus for %s\n",
-		        frozen_dn->full_name);
-		return;
+		printk(KERN_ERR "EEH: Cannot find PCI bus "
+		        "for location=%s dn=%s\n",
+		        location, frozen_dn->full_name);
+		return NULL;
 	}
 
 #if 0
@@ -314,8 +325,9 @@ void handle_eeh_events (struct eeh_event *event)
 
 	eeh_slot_error_detail(frozen_pdn, 1 /* Temporary Error */);
 	printk(KERN_WARNING
-	   "EEH: This PCI device has failed %d times since last reboot: %s - %s\n",
-		frozen_pdn->eeh_freeze_count, drv_str, pci_str);
+	   "EEH: This PCI device has failed %d times since last reboot: "
+		"location=%s driver=%s pci addr=%s\n",
+		frozen_pdn->eeh_freeze_count, location, drv_str, pci_str);
 
 	/* Walk the various device drivers attached to this slot through
 	 * a reset sequence, giving each an opportunity to do what it needs
@@ -355,7 +367,7 @@ void handle_eeh_events (struct eeh_event *event)
 	/* Tell all device drivers that they can resume operations */
 	pci_walk_bus(frozen_bus, eeh_report_resume, NULL);
 
-	return;
+	return frozen_pdn;
 	
 excess_failures:
 	/*
@@ -364,17 +376,18 @@ excess_failures:
 	 * due to actual, failed cards.
 	 */
 	printk(KERN_ERR
-	   "EEH: PCI device %s - %s has failed %d times \n"
-	   "and has been permanently disabled.  Please try reseating\n"
-	   "this device or replacing it.\n",
-		drv_str, pci_str, frozen_pdn->eeh_freeze_count);
+	   "EEH: PCI device at location=%s driver=%s pci addr=%s \n"
+		"has failed %d times and has been permanently disabled. \n"
+		"Please try reseating this device or replacing it.\n",
+		location, drv_str, pci_str, frozen_pdn->eeh_freeze_count);
 	goto perm_error;
 
 hard_fail:
 	printk(KERN_ERR
-	   "EEH: Unable to recover from failure of PCI device %s - %s\n"
+	   "EEH: Unable to recover from failure of PCI device "
+	   "at location=%s driver=%s pci addr=%s \n"
 	   "Please try reseating this device or replacing it.\n",
-		drv_str, pci_str);
+		location, drv_str, pci_str);
 
 perm_error:
 	eeh_slot_error_detail(frozen_pdn, 2 /* Permanent Error */);
@@ -384,6 +397,8 @@ perm_error:
 
 	/* Shut down the device drivers for good. */
 	pcibios_remove_pci_devices(frozen_bus);
+
+	return NULL;
 }
 
 /* ---------- end of file ---------- */
diff --git a/arch/powerpc/platforms/pseries/eeh_event.c b/arch/powerpc/platforms/pseries/eeh_event.c
index 40020c65c89e..8f2d12935b99 100644
--- a/arch/powerpc/platforms/pseries/eeh_event.c
+++ b/arch/powerpc/platforms/pseries/eeh_event.c
@@ -18,6 +18,7 @@
  * Copyright (c) 2005 Linas Vepstas <linas@linas.org>
  */
 
+#include <linux/delay.h>
 #include <linux/list.h>
 #include <linux/mutex.h>
 #include <linux/pci.h>
@@ -56,38 +57,43 @@ static int eeh_event_handler(void * dummy)
 {
 	unsigned long flags;
 	struct eeh_event	*event;
+	struct pci_dn *pdn;
 
 	daemonize ("eehd");
+	set_current_state(TASK_INTERRUPTIBLE);
 
-	while (1) {
-		set_current_state(TASK_INTERRUPTIBLE);
+	spin_lock_irqsave(&eeh_eventlist_lock, flags);
+	event = NULL;
 
-		spin_lock_irqsave(&eeh_eventlist_lock, flags);
-		event = NULL;
+	/* Unqueue the event, get ready to process. */
+	if (!list_empty(&eeh_eventlist)) {
+		event = list_entry(eeh_eventlist.next, struct eeh_event, list);
+		list_del(&event->list);
+	}
+	spin_unlock_irqrestore(&eeh_eventlist_lock, flags);
 
-		/* Unqueue the event, get ready to process. */
-		if (!list_empty(&eeh_eventlist)) {
-			event = list_entry(eeh_eventlist.next, struct eeh_event, list);
-			list_del(&event->list);
-		}
-		spin_unlock_irqrestore(&eeh_eventlist_lock, flags);
+	if (event == NULL)
+		return 0;
 
-		if (event == NULL)
-			break;
+	/* Serialize processing of EEH events */
+	mutex_lock(&eeh_event_mutex);
+	eeh_mark_slot(event->dn, EEH_MODE_RECOVERING);
 
-		/* Serialize processing of EEH events */
-		mutex_lock(&eeh_event_mutex);
-		eeh_mark_slot(event->dn, EEH_MODE_RECOVERING);
+	printk(KERN_INFO "EEH: Detected PCI bus error on device %s\n",
+	       pci_name(event->dev));
 
-		printk(KERN_INFO "EEH: Detected PCI bus error on device %s\n",
-		       pci_name(event->dev));
+	pdn = handle_eeh_events(event);
 
-		handle_eeh_events(event);
+	eeh_clear_slot(event->dn, EEH_MODE_RECOVERING);
+	pci_dev_put(event->dev);
+	kfree(event);
+	mutex_unlock(&eeh_event_mutex);
 
-		eeh_clear_slot(event->dn, EEH_MODE_RECOVERING);
-		pci_dev_put(event->dev);
-		kfree(event);
-		mutex_unlock(&eeh_event_mutex);
+	/* If there are no new errors after an hour, clear the counter. */
+	if (pdn && pdn->eeh_freeze_count>0) {
+		msleep_interruptible (3600*1000);
+		if (pdn->eeh_freeze_count>0)
+			pdn->eeh_freeze_count--;
 	}
 
 	return 0;
diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c
index 2643078433f0..d03a8b078f9d 100644
--- a/arch/powerpc/platforms/pseries/iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c
@@ -1,23 +1,24 @@
 /*
  * Copyright (C) 2001 Mike Corrigan & Dave Engebretsen, IBM Corporation
  *
- * Rewrite, cleanup: 
+ * Rewrite, cleanup:
  *
  * Copyright (C) 2004 Olof Johansson <olof@lixom.net>, IBM Corporation
+ * Copyright (C) 2006 Olof Johansson <olof@lixom.net>
  *
  * Dynamic DMA mapping support, pSeries-specific parts, both SMP and LPAR.
  *
- * 
+ *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 2 of the License, or
  * (at your option) any later version.
- * 
+ *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
- * 
+ *
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
@@ -49,52 +50,46 @@
 
 #define DBG(fmt...)
 
-static void tce_build_pSeries(struct iommu_table *tbl, long index, 
-			      long npages, unsigned long uaddr, 
+static void tce_build_pSeries(struct iommu_table *tbl, long index,
+			      long npages, unsigned long uaddr,
 			      enum dma_data_direction direction)
 {
-	union tce_entry t;
-	union tce_entry *tp;
+	u64 proto_tce;
+	u64 *tcep;
+	u64 rpn;
 
 	index <<= TCE_PAGE_FACTOR;
 	npages <<= TCE_PAGE_FACTOR;
 
-	t.te_word = 0;
-	t.te_rdwr = 1; // Read allowed 
+	proto_tce = TCE_PCI_READ; // Read allowed
 
 	if (direction != DMA_TO_DEVICE)
-		t.te_pciwr = 1;
+		proto_tce |= TCE_PCI_WRITE;
 
-	tp = ((union tce_entry *)tbl->it_base) + index;
+	tcep = ((u64 *)tbl->it_base) + index;
 
 	while (npages--) {
 		/* can't move this out since we might cross LMB boundary */
-		t.te_rpn = (virt_to_abs(uaddr)) >> TCE_SHIFT;
-	
-		tp->te_word = t.te_word;
+		rpn = (virt_to_abs(uaddr)) >> TCE_SHIFT;
+		*tcep = proto_tce | (rpn & TCE_RPN_MASK) << TCE_RPN_SHIFT;
 
 		uaddr += TCE_PAGE_SIZE;
-		tp++;
+		tcep++;
 	}
 }
 
 
 static void tce_free_pSeries(struct iommu_table *tbl, long index, long npages)
 {
-	union tce_entry t;
-	union tce_entry *tp;
+	u64 *tcep;
 
 	npages <<= TCE_PAGE_FACTOR;
 	index <<= TCE_PAGE_FACTOR;
 
-	t.te_word = 0;
-	tp  = ((union tce_entry *)tbl->it_base) + index;
-		
-	while (npages--) {
-		tp->te_word = t.te_word;
-		
-		tp++;
-	}
+	tcep = ((u64 *)tbl->it_base) + index;
+
+	while (npages--)
+		*(tcep++) = 0;
 }
 
 
@@ -103,43 +98,44 @@ static void tce_build_pSeriesLP(struct iommu_table *tbl, long tcenum,
 				enum dma_data_direction direction)
 {
 	u64 rc;
-	union tce_entry tce;
+	u64 proto_tce, tce;
+	u64 rpn;
 
 	tcenum <<= TCE_PAGE_FACTOR;
 	npages <<= TCE_PAGE_FACTOR;
 
-	tce.te_word = 0;
-	tce.te_rpn = (virt_to_abs(uaddr)) >> TCE_SHIFT;
-	tce.te_rdwr = 1;
+	rpn = (virt_to_abs(uaddr)) >> TCE_SHIFT;
+	proto_tce = TCE_PCI_READ;
 	if (direction != DMA_TO_DEVICE)
-		tce.te_pciwr = 1;
+		proto_tce |= TCE_PCI_WRITE;
 
 	while (npages--) {
-		rc = plpar_tce_put((u64)tbl->it_index, 
-				   (u64)tcenum << 12, 
-				   tce.te_word );
-		
+		tce = proto_tce | (rpn & TCE_RPN_MASK) << TCE_RPN_SHIFT;
+		rc = plpar_tce_put((u64)tbl->it_index, (u64)tcenum << 12, tce);
+
 		if (rc && printk_ratelimit()) {
 			printk("tce_build_pSeriesLP: plpar_tce_put failed. rc=%ld\n", rc);
 			printk("\tindex   = 0x%lx\n", (u64)tbl->it_index);
 			printk("\ttcenum  = 0x%lx\n", (u64)tcenum);
-			printk("\ttce val = 0x%lx\n", tce.te_word );
+			printk("\ttce val = 0x%lx\n", tce );
 			show_stack(current, (unsigned long *)__get_SP());
 		}
-			
+
 		tcenum++;
-		tce.te_rpn++;
+		rpn++;
 	}
 }
 
-static DEFINE_PER_CPU(void *, tce_page) = NULL;
+static DEFINE_PER_CPU(u64 *, tce_page) = NULL;
 
 static void tce_buildmulti_pSeriesLP(struct iommu_table *tbl, long tcenum,
 				     long npages, unsigned long uaddr,
 				     enum dma_data_direction direction)
 {
 	u64 rc;
-	union tce_entry tce, *tcep;
+	u64 proto_tce;
+	u64 *tcep;
+	u64 rpn;
 	long l, limit;
 
 	if (TCE_PAGE_FACTOR == 0 && npages == 1)
@@ -152,7 +148,7 @@ static void tce_buildmulti_pSeriesLP(struct iommu_table *tbl, long tcenum,
 	 * from iommu_alloc{,_sg}()
 	 */
 	if (!tcep) {
-		tcep = (void *)__get_free_page(GFP_ATOMIC);
+		tcep = (u64 *)__get_free_page(GFP_ATOMIC);
 		/* If allocation fails, fall back to the loop implementation */
 		if (!tcep)
 			return tce_build_pSeriesLP(tbl, tcenum, npages,
@@ -163,11 +159,10 @@ static void tce_buildmulti_pSeriesLP(struct iommu_table *tbl, long tcenum,
 	tcenum <<= TCE_PAGE_FACTOR;
 	npages <<= TCE_PAGE_FACTOR;
 
-	tce.te_word = 0;
-	tce.te_rpn = (virt_to_abs(uaddr)) >> TCE_SHIFT;
-	tce.te_rdwr = 1;
+	rpn = (virt_to_abs(uaddr)) >> TCE_SHIFT;
+	proto_tce = TCE_PCI_READ;
 	if (direction != DMA_TO_DEVICE)
-		tce.te_pciwr = 1;
+		proto_tce |= TCE_PCI_WRITE;
 
 	/* We can map max one pageful of TCEs at a time */
 	do {
@@ -175,11 +170,11 @@ static void tce_buildmulti_pSeriesLP(struct iommu_table *tbl, long tcenum,
 		 * Set up the page with TCE data, looping through and setting
 		 * the values.
 		 */
-		limit = min_t(long, npages, 4096/sizeof(union tce_entry));
+		limit = min_t(long, npages, 4096/TCE_ENTRY_SIZE);
 
 		for (l = 0; l < limit; l++) {
-			tcep[l] = tce;
-			tce.te_rpn++;
+			tcep[l] = proto_tce | (rpn & TCE_RPN_MASK) << TCE_RPN_SHIFT;
+			rpn++;
 		}
 
 		rc = plpar_tce_put_indirect((u64)tbl->it_index,
@@ -195,7 +190,7 @@ static void tce_buildmulti_pSeriesLP(struct iommu_table *tbl, long tcenum,
 		printk("tce_buildmulti_pSeriesLP: plpar_tce_put failed. rc=%ld\n", rc);
 		printk("\tindex   = 0x%lx\n", (u64)tbl->it_index);
 		printk("\tnpages  = 0x%lx\n", (u64)npages);
-		printk("\ttce[0] val = 0x%lx\n", tcep[0].te_word);
+		printk("\ttce[0] val = 0x%lx\n", tcep[0]);
 		show_stack(current, (unsigned long *)__get_SP());
 	}
 }
@@ -203,23 +198,17 @@ static void tce_buildmulti_pSeriesLP(struct iommu_table *tbl, long tcenum,
 static void tce_free_pSeriesLP(struct iommu_table *tbl, long tcenum, long npages)
 {
 	u64 rc;
-	union tce_entry tce;
 
 	tcenum <<= TCE_PAGE_FACTOR;
 	npages <<= TCE_PAGE_FACTOR;
 
-	tce.te_word = 0;
-
 	while (npages--) {
-		rc = plpar_tce_put((u64)tbl->it_index,
-				   (u64)tcenum << 12,
-				   tce.te_word);
+		rc = plpar_tce_put((u64)tbl->it_index, (u64)tcenum << 12, 0);
 
 		if (rc && printk_ratelimit()) {
 			printk("tce_free_pSeriesLP: plpar_tce_put failed. rc=%ld\n", rc);
 			printk("\tindex   = 0x%lx\n", (u64)tbl->it_index);
 			printk("\ttcenum  = 0x%lx\n", (u64)tcenum);
-			printk("\ttce val = 0x%lx\n", tce.te_word );
 			show_stack(current, (unsigned long *)__get_SP());
 		}
 
@@ -231,31 +220,24 @@ static void tce_free_pSeriesLP(struct iommu_table *tbl, long tcenum, long npages
 static void tce_freemulti_pSeriesLP(struct iommu_table *tbl, long tcenum, long npages)
 {
 	u64 rc;
-	union tce_entry tce;
 
 	tcenum <<= TCE_PAGE_FACTOR;
 	npages <<= TCE_PAGE_FACTOR;
 
-	tce.te_word = 0;
-
-	rc = plpar_tce_stuff((u64)tbl->it_index,
-			   (u64)tcenum << 12,
-			   tce.te_word,
-			   npages);
+	rc = plpar_tce_stuff((u64)tbl->it_index, (u64)tcenum << 12, 0, npages);
 
 	if (rc && printk_ratelimit()) {
 		printk("tce_freemulti_pSeriesLP: plpar_tce_stuff failed\n");
 		printk("\trc      = %ld\n", rc);
 		printk("\tindex   = 0x%lx\n", (u64)tbl->it_index);
 		printk("\tnpages  = 0x%lx\n", (u64)npages);
-		printk("\ttce val = 0x%lx\n", tce.te_word );
 		show_stack(current, (unsigned long *)__get_SP());
 	}
 }
 
 static void iommu_table_setparms(struct pci_controller *phb,
 				 struct device_node *dn,
-				 struct iommu_table *tbl) 
+				 struct iommu_table *tbl)
 {
 	struct device_node *node;
 	unsigned long *basep;
@@ -275,16 +257,16 @@ static void iommu_table_setparms(struct pci_controller *phb,
 	memset((void *)tbl->it_base, 0, *sizep);
 
 	tbl->it_busno = phb->bus->number;
-	
+
 	/* Units of tce entries */
 	tbl->it_offset = phb->dma_window_base_cur >> PAGE_SHIFT;
-	
+
 	/* Test if we are going over 2GB of DMA space */
 	if (phb->dma_window_base_cur + phb->dma_window_size > 0x80000000ul) {
 		udbg_printf("PCI_DMA: Unexpected number of IOAs under this PHB.\n");
-		panic("PCI_DMA: Unexpected number of IOAs under this PHB.\n"); 
+		panic("PCI_DMA: Unexpected number of IOAs under this PHB.\n");
 	}
-	
+
 	phb->dma_window_base_cur += phb->dma_window_size;
 
 	/* Set the tce table size - measured in entries */
@@ -299,30 +281,22 @@ static void iommu_table_setparms(struct pci_controller *phb,
  * iommu_table_setparms_lpar
  *
  * Function: On pSeries LPAR systems, return TCE table info, given a pci bus.
- *
- * ToDo: properly interpret the ibm,dma-window property.  The definition is:
- *	logical-bus-number	(1 word)
- *	phys-address		(#address-cells words)
- *	size			(#cell-size words)
- *
- * Currently we hard code these sizes (more or less).
  */
 static void iommu_table_setparms_lpar(struct pci_controller *phb,
 				      struct device_node *dn,
 				      struct iommu_table *tbl,
-				      unsigned int *dma_window)
+				      unsigned char *dma_window)
 {
+	unsigned long offset, size;
+
 	tbl->it_busno  = PCI_DN(dn)->bussubno;
+	of_parse_dma_window(dn, dma_window, &tbl->it_index, &offset, &size);
 
-	/* TODO: Parse field size properties properly. */
-	tbl->it_size   = (((unsigned long)dma_window[4] << 32) |
-			   (unsigned long)dma_window[5]) >> PAGE_SHIFT;
-	tbl->it_offset = (((unsigned long)dma_window[2] << 32) |
-			   (unsigned long)dma_window[3]) >> PAGE_SHIFT;
 	tbl->it_base   = 0;
-	tbl->it_index  = dma_window[0];
 	tbl->it_blocksize  = 16;
 	tbl->it_type = TCE_PCI;
+	tbl->it_offset = offset >> PAGE_SHIFT;
+	tbl->it_size = size >> PAGE_SHIFT;
 }
 
 static void iommu_bus_setup_pSeries(struct pci_bus *bus)
@@ -357,13 +331,9 @@ static void iommu_bus_setup_pSeries(struct pci_bus *bus)
 	if (isa_dn_orig)
 		of_node_put(isa_dn_orig);
 
-	/* Count number of direct PCI children of the PHB.
-	 * All PCI device nodes have class-code property, so it's
-	 * an easy way to find them.
-	 */
+	/* Count number of direct PCI children of the PHB. */
 	for (children = 0, tmp = dn->child; tmp; tmp = tmp->sibling)
-		if (get_property(tmp, "class-code", NULL))
-			children++;
+		children++;
 
 	DBG("Children: %d\n", children);
 
@@ -394,10 +364,11 @@ static void iommu_bus_setup_pSeries(struct pci_bus *bus)
 	pci->phb->dma_window_size = 0x8000000ul;
 	pci->phb->dma_window_base_cur = 0x8000000ul;
 
-	tbl = kmalloc(sizeof(struct iommu_table), GFP_KERNEL);
+	tbl = kmalloc_node(sizeof(struct iommu_table), GFP_KERNEL,
+			   pci->phb->node);
 
 	iommu_table_setparms(pci->phb, dn, tbl);
-	pci->iommu_table = iommu_init_table(tbl);
+	pci->iommu_table = iommu_init_table(tbl, pci->phb->node);
 
 	/* Divide the rest (1.75GB) among the children */
 	pci->phb->dma_window_size = 0x80000000ul;
@@ -414,7 +385,7 @@ static void iommu_bus_setup_pSeriesLP(struct pci_bus *bus)
 	struct iommu_table *tbl;
 	struct device_node *dn, *pdn;
 	struct pci_dn *ppci;
-	unsigned int *dma_window = NULL;
+	unsigned char *dma_window = NULL;
 
 	DBG("iommu_bus_setup_pSeriesLP, bus %p, bus->self %p\n", bus, bus->self);
 
@@ -422,7 +393,7 @@ static void iommu_bus_setup_pSeriesLP(struct pci_bus *bus)
 
 	/* Find nearest ibm,dma-window, walking up the device tree */
 	for (pdn = dn; pdn != NULL; pdn = pdn->parent) {
-		dma_window = (unsigned int *)get_property(pdn, "ibm,dma-window", NULL);
+		dma_window = get_property(pdn, "ibm,dma-window", NULL);
 		if (dma_window != NULL)
 			break;
 	}
@@ -440,12 +411,12 @@ static void iommu_bus_setup_pSeriesLP(struct pci_bus *bus)
 
 		ppci->bussubno = bus->number;
 
-		tbl = (struct iommu_table *)kmalloc(sizeof(struct iommu_table),
-						    GFP_KERNEL);
-	
+		tbl = kmalloc_node(sizeof(struct iommu_table), GFP_KERNEL,
+				   ppci->phb->node);
+
 		iommu_table_setparms_lpar(ppci->phb, pdn, tbl, dma_window);
 
-		ppci->iommu_table = iommu_init_table(tbl);
+		ppci->iommu_table = iommu_init_table(tbl, ppci->phb->node);
 	}
 
 	if (pdn != dn)
@@ -468,9 +439,11 @@ static void iommu_dev_setup_pSeries(struct pci_dev *dev)
 	 */
 	if (!dev->bus->self) {
 		DBG(" --> first child, no bridge. Allocating iommu table.\n");
-		tbl = kmalloc(sizeof(struct iommu_table), GFP_KERNEL);
+		tbl = kmalloc_node(sizeof(struct iommu_table), GFP_KERNEL,
+				   PCI_DN(dn)->phb->node);
 		iommu_table_setparms(PCI_DN(dn)->phb, dn, tbl);
-		PCI_DN(mydn)->iommu_table = iommu_init_table(tbl);
+		PCI_DN(dn)->iommu_table = iommu_init_table(tbl,
+						PCI_DN(dn)->phb->node);
 
 		return;
 	}
@@ -516,7 +489,7 @@ static void iommu_dev_setup_pSeriesLP(struct pci_dev *dev)
 {
 	struct device_node *pdn, *dn;
 	struct iommu_table *tbl;
-	int *dma_window = NULL;
+	unsigned char *dma_window = NULL;
 	struct pci_dn *pci;
 
 	DBG("iommu_dev_setup_pSeriesLP, dev %p (%s)\n", dev, pci_name(dev));
@@ -531,8 +504,7 @@ static void iommu_dev_setup_pSeriesLP(struct pci_dev *dev)
 
 	for (pdn = dn; pdn && PCI_DN(pdn) && !PCI_DN(pdn)->iommu_table;
 	     pdn = pdn->parent) {
-		dma_window = (unsigned int *)
-			get_property(pdn, "ibm,dma-window", NULL);
+		dma_window = get_property(pdn, "ibm,dma-window", NULL);
 		if (dma_window)
 			break;
 	}
@@ -553,12 +525,12 @@ static void iommu_dev_setup_pSeriesLP(struct pci_dev *dev)
 		/* iommu_table_setparms_lpar needs bussubno. */
 		pci->bussubno = pci->phb->bus->number;
 
-		tbl = (struct iommu_table *)kmalloc(sizeof(struct iommu_table),
-						    GFP_KERNEL);
+		tbl = kmalloc_node(sizeof(struct iommu_table), GFP_KERNEL,
+				   pci->phb->node);
 
 		iommu_table_setparms_lpar(pci->phb, pdn, tbl, dma_window);
 
-		pci->iommu_table = iommu_init_table(tbl);
+		pci->iommu_table = iommu_init_table(tbl, pci->phb->node);
 	}
 
 	if (pdn != dn)
diff --git a/arch/powerpc/platforms/pseries/rtasd.c b/arch/powerpc/platforms/pseries/rtasd.c
index e0000ce769e5..2e4e04042d85 100644
--- a/arch/powerpc/platforms/pseries/rtasd.c
+++ b/arch/powerpc/platforms/pseries/rtasd.c
@@ -348,7 +348,7 @@ static int enable_surveillance(int timeout)
 		return 0;
 
 	if (error == -EINVAL) {
-		printk(KERN_INFO "rtasd: surveillance not supported\n");
+		printk(KERN_DEBUG "rtasd: surveillance not supported\n");
 		return 0;
 	}
 
@@ -440,7 +440,7 @@ static int rtasd(void *unused)
 		goto error;
 	}
 
-	printk(KERN_INFO "RTAS daemon started\n");
+	printk(KERN_DEBUG "RTAS daemon started\n");
 
 	DEBUG("will sleep for %d milliseconds\n", (30000/rtas_event_scan_rate));
 
@@ -487,7 +487,7 @@ static int __init rtas_init(void)
 
 	/* No RTAS */
 	if (rtas_token("event-scan") == RTAS_UNKNOWN_SERVICE) {
-		printk(KERN_INFO "rtasd: no event-scan on system\n");
+		printk(KERN_DEBUG "rtasd: no event-scan on system\n");
 		return -ENODEV;
 	}
 
diff --git a/arch/powerpc/platforms/pseries/scanlog.c b/arch/powerpc/platforms/pseries/scanlog.c
index 50643496eb63..77a5bb1d9c30 100644
--- a/arch/powerpc/platforms/pseries/scanlog.c
+++ b/arch/powerpc/platforms/pseries/scanlog.c
@@ -107,9 +107,9 @@ static ssize_t scanlog_read(struct file *file, char __user *buf,
 			/* Break to sleep default time */
 			break;
 		    default:
-			if (status > 9900 && status <= 9905) {
-				wait_time = rtas_extended_busy_delay_time(status);
-			} else {
+			/* Assume extended busy */
+			wait_time = rtas_busy_delay_time(status);
+			if (!wait_time) {
 				printk(KERN_ERR "scanlog: unknown error from rtas: %d\n", status);
 				return -EIO;
 			}
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index 3ba87835757e..1e28518c6121 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -235,14 +235,14 @@ static void __init pSeries_setup_arch(void)
 	if (firmware_has_feature(FW_FEATURE_SPLPAR)) {
 		vpa_init(boot_cpuid);
 		if (get_lppaca()->shared_proc) {
-			printk(KERN_INFO "Using shared processor idle loop\n");
+			printk(KERN_DEBUG "Using shared processor idle loop\n");
 			ppc_md.power_save = pseries_shared_idle_sleep;
 		} else {
-			printk(KERN_INFO "Using dedicated idle loop\n");
+			printk(KERN_DEBUG "Using dedicated idle loop\n");
 			ppc_md.power_save = pseries_dedicated_idle_sleep;
 		}
 	} else {
-		printk(KERN_INFO "Using default idle loop\n");
+		printk(KERN_DEBUG "Using default idle loop\n");
 	}
 
 	if (firmware_has_feature(FW_FEATURE_LPAR))
diff --git a/arch/powerpc/platforms/pseries/vio.c b/arch/powerpc/platforms/pseries/vio.c
deleted file mode 100644
index 8e53e04ada8b..000000000000
--- a/arch/powerpc/platforms/pseries/vio.c
+++ /dev/null
@@ -1,274 +0,0 @@
-/*
- * IBM PowerPC pSeries Virtual I/O Infrastructure Support.
- *
- *    Copyright (c) 2003-2005 IBM Corp.
- *     Dave Engebretsen engebret@us.ibm.com
- *     Santiago Leon santil@us.ibm.com
- *     Hollis Blanchard <hollisb@us.ibm.com>
- *     Stephen Rothwell
- *
- *      This program is free software; you can redistribute it and/or
- *      modify it under the terms of the GNU General Public License
- *      as published by the Free Software Foundation; either version
- *      2 of the License, or (at your option) any later version.
- */
-
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/mm.h>
-#include <linux/kobject.h>
-#include <asm/iommu.h>
-#include <asm/dma.h>
-#include <asm/prom.h>
-#include <asm/vio.h>
-#include <asm/hvcall.h>
-#include <asm/tce.h>
-
-extern struct subsystem devices_subsys; /* needed for vio_find_name() */
-
-static void probe_bus_pseries(void)
-{
-	struct device_node *node_vroot, *of_node;
-
-	node_vroot = find_devices("vdevice");
-	if ((node_vroot == NULL) || (node_vroot->child == NULL))
-		/* this machine doesn't do virtual IO, and that's ok */
-		return;
-
-	/*
-	 * Create struct vio_devices for each virtual device in the device tree.
-	 * Drivers will associate with them later.
-	 */
-	for (of_node = node_vroot->child; of_node != NULL;
-			of_node = of_node->sibling) {
-		printk(KERN_DEBUG "%s: processing %p\n", __FUNCTION__, of_node);
-		vio_register_device_node(of_node);
-	}
-}
-
-/**
- * vio_match_device_pseries: - Tell if a pSeries VIO device matches a
- *	vio_device_id
- */
-static int vio_match_device_pseries(const struct vio_device_id *id,
-		const struct vio_dev *dev)
-{
-	return (strncmp(dev->type, id->type, strlen(id->type)) == 0) &&
-			device_is_compatible(dev->dev.platform_data, id->compat);
-}
-
-static void vio_release_device_pseries(struct device *dev)
-{
-	/* XXX free TCE table */
-	of_node_put(dev->platform_data);
-}
-
-static ssize_t viodev_show_devspec(struct device *dev,
-		struct device_attribute *attr, char *buf)
-{
-	struct device_node *of_node = dev->platform_data;
-
-	return sprintf(buf, "%s\n", of_node->full_name);
-}
-DEVICE_ATTR(devspec, S_IRUSR | S_IRGRP | S_IROTH, viodev_show_devspec, NULL);
-
-static void vio_unregister_device_pseries(struct vio_dev *viodev)
-{
-	device_remove_file(&viodev->dev, &dev_attr_devspec);
-}
-
-static struct vio_bus_ops vio_bus_ops_pseries = {
-	.match = vio_match_device_pseries,
-	.unregister_device = vio_unregister_device_pseries,
-	.release_device = vio_release_device_pseries,
-};
-
-/**
- * vio_bus_init_pseries: - Initialize the pSeries virtual IO bus
- */
-static int __init vio_bus_init_pseries(void)
-{
-	int err;
-
-	err = vio_bus_init(&vio_bus_ops_pseries);
-	if (err == 0)
-		probe_bus_pseries();
-	return err;
-}
-
-__initcall(vio_bus_init_pseries);
-
-/**
- * vio_build_iommu_table: - gets the dma information from OF and
- *	builds the TCE tree.
- * @dev: the virtual device.
- *
- * Returns a pointer to the built tce tree, or NULL if it can't
- * find property.
-*/
-static struct iommu_table *vio_build_iommu_table(struct vio_dev *dev)
-{
-	unsigned int *dma_window;
-	struct iommu_table *newTceTable;
-	unsigned long offset;
-	int dma_window_property_size;
-
-	dma_window = (unsigned int *) get_property(dev->dev.platform_data, "ibm,my-dma-window", &dma_window_property_size);
-	if(!dma_window) {
-		return NULL;
-	}
-
-	newTceTable = (struct iommu_table *) kmalloc(sizeof(struct iommu_table), GFP_KERNEL);
-
-	/*  There should be some code to extract the phys-encoded offset
-		using prom_n_addr_cells(). However, according to a comment
-		on earlier versions, it's always zero, so we don't bother */
-	offset = dma_window[1] >>  PAGE_SHIFT;
-
-	/* TCE table size - measured in tce entries */
-	newTceTable->it_size		= dma_window[4] >> PAGE_SHIFT;
-	/* offset for VIO should always be 0 */
-	newTceTable->it_offset		= offset;
-	newTceTable->it_busno		= 0;
-	newTceTable->it_index		= (unsigned long)dma_window[0];
-	newTceTable->it_type		= TCE_VB;
-
-	return iommu_init_table(newTceTable);
-}
-
-/**
- * vio_register_device_node: - Register a new vio device.
- * @of_node:	The OF node for this device.
- *
- * Creates and initializes a vio_dev structure from the data in
- * of_node (dev.platform_data) and adds it to the list of virtual devices.
- * Returns a pointer to the created vio_dev or NULL if node has
- * NULL device_type or compatible fields.
- */
-struct vio_dev * __devinit vio_register_device_node(struct device_node *of_node)
-{
-	struct vio_dev *viodev;
-	unsigned int *unit_address;
-	unsigned int *irq_p;
-
-	/* we need the 'device_type' property, in order to match with drivers */
-	if ((NULL == of_node->type)) {
-		printk(KERN_WARNING
-			"%s: node %s missing 'device_type'\n", __FUNCTION__,
-			of_node->name ? of_node->name : "<unknown>");
-		return NULL;
-	}
-
-	unit_address = (unsigned int *)get_property(of_node, "reg", NULL);
-	if (!unit_address) {
-		printk(KERN_WARNING "%s: node %s missing 'reg'\n", __FUNCTION__,
-			of_node->name ? of_node->name : "<unknown>");
-		return NULL;
-	}
-
-	/* allocate a vio_dev for this node */
-	viodev = kmalloc(sizeof(struct vio_dev), GFP_KERNEL);
-	if (!viodev) {
-		return NULL;
-	}
-	memset(viodev, 0, sizeof(struct vio_dev));
-
-	viodev->dev.platform_data = of_node_get(of_node);
-
-	viodev->irq = NO_IRQ;
-	irq_p = (unsigned int *)get_property(of_node, "interrupts", NULL);
-	if (irq_p) {
-		int virq = virt_irq_create_mapping(*irq_p);
-		if (virq == NO_IRQ) {
-			printk(KERN_ERR "Unable to allocate interrupt "
-			       "number for %s\n", of_node->full_name);
-		} else
-			viodev->irq = irq_offset_up(virq);
-	}
-
-	snprintf(viodev->dev.bus_id, BUS_ID_SIZE, "%x", *unit_address);
-	viodev->name = of_node->name;
-	viodev->type = of_node->type;
-	viodev->unit_address = *unit_address;
-	viodev->iommu_table = vio_build_iommu_table(viodev);
-
-	/* register with generic device framework */
-	if (vio_register_device(viodev) == NULL) {
-		/* XXX free TCE table */
-		kfree(viodev);
-		return NULL;
-	}
-	device_create_file(&viodev->dev, &dev_attr_devspec);
-
-	return viodev;
-}
-EXPORT_SYMBOL(vio_register_device_node);
-
-/**
- * vio_get_attribute: - get attribute for virtual device
- * @vdev:	The vio device to get property.
- * @which:	The property/attribute to be extracted.
- * @length:	Pointer to length of returned data size (unused if NULL).
- *
- * Calls prom.c's get_property() to return the value of the
- * attribute specified by the preprocessor constant @which
-*/
-const void * vio_get_attribute(struct vio_dev *vdev, void* which, int* length)
-{
-	return get_property(vdev->dev.platform_data, (char*)which, length);
-}
-EXPORT_SYMBOL(vio_get_attribute);
-
-/* vio_find_name() - internal because only vio.c knows how we formatted the
- * kobject name
- * XXX once vio_bus_type.devices is actually used as a kset in
- * drivers/base/bus.c, this function should be removed in favor of
- * "device_find(kobj_name, &vio_bus_type)"
- */
-static struct vio_dev *vio_find_name(const char *kobj_name)
-{
-	struct kobject *found;
-
-	found = kset_find_obj(&devices_subsys.kset, kobj_name);
-	if (!found)
-		return NULL;
-
-	return to_vio_dev(container_of(found, struct device, kobj));
-}
-
-/**
- * vio_find_node - find an already-registered vio_dev
- * @vnode: device_node of the virtual device we're looking for
- */
-struct vio_dev *vio_find_node(struct device_node *vnode)
-{
-	uint32_t *unit_address;
-	char kobj_name[BUS_ID_SIZE];
-
-	/* construct the kobject name from the device node */
-	unit_address = (uint32_t *)get_property(vnode, "reg", NULL);
-	if (!unit_address)
-		return NULL;
-	snprintf(kobj_name, BUS_ID_SIZE, "%x", *unit_address);
-
-	return vio_find_name(kobj_name);
-}
-EXPORT_SYMBOL(vio_find_node);
-
-int vio_enable_interrupts(struct vio_dev *dev)
-{
-	int rc = h_vio_signal(dev->unit_address, VIO_IRQ_ENABLE);
-	if (rc != H_SUCCESS)
-		printk(KERN_ERR "vio: Error 0x%x enabling interrupts\n", rc);
-	return rc;
-}
-EXPORT_SYMBOL(vio_enable_interrupts);
-
-int vio_disable_interrupts(struct vio_dev *dev)
-{
-	int rc = h_vio_signal(dev->unit_address, VIO_IRQ_DISABLE);
-	if (rc != H_SUCCESS)
-		printk(KERN_ERR "vio: Error 0x%x disabling interrupts\n", rc);
-	return rc;
-}
-EXPORT_SYMBOL(vio_disable_interrupts);
diff --git a/arch/powerpc/platforms/pseries/xics.c b/arch/powerpc/platforms/pseries/xics.c
index 2d60ea30fed6..b14f9b5c114e 100644
--- a/arch/powerpc/platforms/pseries/xics.c
+++ b/arch/powerpc/platforms/pseries/xics.c
@@ -522,7 +522,7 @@ nextnode:
 
 	np = of_find_node_by_type(NULL, "interrupt-controller");
 	if (!np) {
-		printk(KERN_WARNING "xics: no ISA interrupt controller\n");
+		printk(KERN_DEBUG "xics: no ISA interrupt controller\n");
 		xics_irq_8259_cascade_real = -1;
 		xics_irq_8259_cascade = -1;
 	} else {
@@ -641,23 +641,26 @@ void xics_teardown_cpu(int secondary)
 	ops->cppr_info(cpu, 0x00);
 	iosync();
 
+	/* Clear IPI */
+	ops->qirr_info(cpu, 0xff);
+
+	/*
+	 * we need to EOI the IPI if we got here from kexec down IPI
+	 *
+	 * probably need to check all the other interrupts too
+	 * should we be flagging idle loop instead?
+	 * or creating some task to be scheduled?
+	 */
+	ops->xirr_info_set(cpu, XICS_IPI);
+
 	/*
 	 * Some machines need to have at least one cpu in the GIQ,
 	 * so leave the master cpu in the group.
 	 */
-	if (secondary) {
-		/*
-		 * we need to EOI the IPI if we got here from kexec down IPI
-		 *
-		 * probably need to check all the other interrupts too
-		 * should we be flagging idle loop instead?
-		 * or creating some task to be scheduled?
-		 */
-		ops->xirr_info_set(cpu, XICS_IPI);
+	if (secondary)
 		rtas_set_indicator(GLOBAL_INTERRUPT_QUEUE,
 			(1UL << interrupt_server_size) - 1 -
 			default_distrib_server, 0);
-	}
 }
 
 #ifdef CONFIG_HOTPLUG_CPU