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

50 files changed, 885 insertions, 376 deletions

diff --git a/arch/powerpc/platforms/40x/ep405.c b/arch/powerpc/platforms/40x/ep405.c
index ae2e7f67c18..4058fd1e7fc 100644
--- a/arch/powerpc/platforms/40x/ep405.c
+++ b/arch/powerpc/platforms/40x/ep405.c
@@ -100,7 +100,7 @@ static void __init ep405_setup_arch(void)
 	/* Find & init the BCSR CPLD */
 	ep405_init_bcsr();
 
-	ppc_pci_flags = PPC_PCI_REASSIGN_ALL_RSRC;
+	ppc_pci_set_flags(PPC_PCI_REASSIGN_ALL_RSRC);
 }
 
 static int __init ep405_probe(void)
diff --git a/arch/powerpc/platforms/40x/kilauea.c b/arch/powerpc/platforms/40x/kilauea.c
index 1dd24ffc0dc..fd7d934dac8 100644
--- a/arch/powerpc/platforms/40x/kilauea.c
+++ b/arch/powerpc/platforms/40x/kilauea.c
@@ -44,7 +44,7 @@ static int __init kilauea_probe(void)
 	if (!of_flat_dt_is_compatible(root, "amcc,kilauea"))
 		return 0;
 
-	ppc_pci_flags = PPC_PCI_REASSIGN_ALL_RSRC;
+	ppc_pci_set_flags(PPC_PCI_REASSIGN_ALL_RSRC);
 
 	return 1;
 }
diff --git a/arch/powerpc/platforms/40x/ppc40x_simple.c b/arch/powerpc/platforms/40x/ppc40x_simple.c
index 4498a86b46c..f40ac9b8f99 100644
--- a/arch/powerpc/platforms/40x/ppc40x_simple.c
+++ b/arch/powerpc/platforms/40x/ppc40x_simple.c
@@ -61,7 +61,7 @@ static int __init ppc40x_probe(void)
 
 	for (i = 0; i < ARRAY_SIZE(board); i++) {
 		if (of_flat_dt_is_compatible(root, board[i])) {
-			ppc_pci_flags = PPC_PCI_REASSIGN_ALL_RSRC;
+			ppc_pci_set_flags(PPC_PCI_REASSIGN_ALL_RSRC);
 			return 1;
 		}
 	}
diff --git a/arch/powerpc/platforms/44x/ebony.c b/arch/powerpc/platforms/44x/ebony.c
index a0e8fe4662f..88b9117fa69 100644
--- a/arch/powerpc/platforms/44x/ebony.c
+++ b/arch/powerpc/platforms/44x/ebony.c
@@ -54,7 +54,7 @@ static int __init ebony_probe(void)
 	if (!of_flat_dt_is_compatible(root, "ibm,ebony"))
 		return 0;
 
-	ppc_pci_flags = PPC_PCI_REASSIGN_ALL_RSRC;
+	ppc_pci_set_flags(PPC_PCI_REASSIGN_ALL_RSRC);
 
 	return 1;
 }
diff --git a/arch/powerpc/platforms/44x/ppc44x_simple.c b/arch/powerpc/platforms/44x/ppc44x_simple.c
index 29671262801..76fdc51dac8 100644
--- a/arch/powerpc/platforms/44x/ppc44x_simple.c
+++ b/arch/powerpc/platforms/44x/ppc44x_simple.c
@@ -69,7 +69,7 @@ static int __init ppc44x_probe(void)
 
 	for (i = 0; i < ARRAY_SIZE(board); i++) {
 		if (of_flat_dt_is_compatible(root, board[i])) {
-			ppc_pci_flags = PPC_PCI_REASSIGN_ALL_RSRC;
+			ppc_pci_set_flags(PPC_PCI_REASSIGN_ALL_RSRC);
 			return 1;
 		}
 	}
diff --git a/arch/powerpc/platforms/44x/sam440ep.c b/arch/powerpc/platforms/44x/sam440ep.c
index 47f10e64773..a78e8eb6da4 100644
--- a/arch/powerpc/platforms/44x/sam440ep.c
+++ b/arch/powerpc/platforms/44x/sam440ep.c
@@ -51,7 +51,7 @@ static int __init sam440ep_probe(void)
 	if (!of_flat_dt_is_compatible(root, "acube,sam440ep"))
 		return 0;
 
-	ppc_pci_flags = PPC_PCI_REASSIGN_ALL_RSRC;
+	ppc_pci_set_flags(PPC_PCI_REASSIGN_ALL_RSRC);
 
 	return 1;
 }
diff --git a/arch/powerpc/platforms/52xx/lite5200_pm.c b/arch/powerpc/platforms/52xx/lite5200_pm.c
index fe92e65103e..b5c753db125 100644
--- a/arch/powerpc/platforms/52xx/lite5200_pm.c
+++ b/arch/powerpc/platforms/52xx/lite5200_pm.c
@@ -3,7 +3,6 @@
 #include <asm/io.h>
 #include <asm/time.h>
 #include <asm/mpc52xx.h>
-#include "mpc52xx_pic.h"
 
 /* defined in lite5200_sleep.S and only used here */
 extern void lite5200_low_power(void __iomem *sram, void __iomem *mbar);
diff --git a/arch/powerpc/platforms/52xx/mpc52xx_pci.c b/arch/powerpc/platforms/52xx/mpc52xx_pci.c
index b49a1852766..c3f2c21024e 100644
--- a/arch/powerpc/platforms/52xx/mpc52xx_pci.c
+++ b/arch/powerpc/platforms/52xx/mpc52xx_pci.c
@@ -375,7 +375,7 @@ mpc52xx_add_bridge(struct device_node *node)
 
 	pr_debug("Adding MPC52xx PCI host bridge %s\n", node->full_name);
 
-	ppc_pci_flags |= PPC_PCI_REASSIGN_ALL_BUS;
+	ppc_pci_add_flags(PPC_PCI_REASSIGN_ALL_BUS);
 
 	if (of_address_to_resource(node, 0, &rsrc) != 0) {
 		printk(KERN_ERR "Can't get %s resources\n", node->full_name);
diff --git a/arch/powerpc/platforms/52xx/mpc52xx_pic.c b/arch/powerpc/platforms/52xx/mpc52xx_pic.c
index 8479394e9ab..72865e8e4b5 100644
--- a/arch/powerpc/platforms/52xx/mpc52xx_pic.c
+++ b/arch/powerpc/platforms/52xx/mpc52xx_pic.c
@@ -2,20 +2,100 @@
  *
  * Programmable Interrupt Controller functions for the Freescale MPC52xx.
  *
+ * Copyright (C) 2008 Secret Lab Technologies Ltd.
  * Copyright (C) 2006 bplan GmbH
+ * Copyright (C) 2004 Sylvain Munaut <tnt@246tNt.com>
+ * Copyright (C) 2003 Montavista Software, Inc
  *
  * Based on the code from the 2.4 kernel by
  * Dale Farnsworth <dfarnsworth@mvista.com> and Kent Borg.
  *
- * Copyright (C) 2004 Sylvain Munaut <tnt@246tNt.com>
- * Copyright (C) 2003 Montavista Software, Inc
- *
  * This file is licensed under the terms of the GNU General Public License
  * version 2. This program is licensed "as is" without any warranty of any
  * kind, whether express or implied.
  *
  */
 
+/*
+ * This is the device driver for the MPC5200 interrupt controller.
+ *
+ * hardware overview
+ * -----------------
+ * The MPC5200 interrupt controller groups the all interrupt sources into
+ * three groups called 'critical', 'main', and 'peripheral'.  The critical
+ * group has 3 irqs, External IRQ0, slice timer 0 irq, and wake from deep
+ * sleep.  Main group include the other 3 external IRQs, slice timer 1, RTC,
+ * gpios, and the general purpose timers.  Peripheral group contains the
+ * remaining irq sources from all of the on-chip peripherals (PSCs, Ethernet,
+ * USB, DMA, etc).
+ *
+ * virqs
+ * -----
+ * The Linux IRQ subsystem requires that each irq source be assigned a
+ * system wide unique IRQ number starting at 1 (0 means no irq).  Since
+ * systems can have multiple interrupt controllers, the virtual IRQ (virq)
+ * infrastructure lets each interrupt controller to define a local set
+ * of IRQ numbers and the virq infrastructure maps those numbers into
+ * a unique range of the global IRQ# space.
+ *
+ * To define a range of virq numbers for this controller, this driver first
+ * assigns a number to each of the irq groups (called the level 1 or L1
+ * value).  Within each group individual irq sources are also assigned a
+ * number, as defined by the MPC5200 user guide, and refers to it as the
+ * level 2 or L2 value.  The virq number is determined by shifting up the
+ * L1 value by MPC52xx_IRQ_L1_OFFSET and ORing it with the L2 value.
+ *
+ * For example, the TMR0 interrupt is irq 9 in the main group.  The
+ * virq for TMR0 is calculated by ((1 << MPC52xx_IRQ_L1_OFFSET) | 9).
+ *
+ * The observant reader will also notice that this driver defines a 4th
+ * interrupt group called 'bestcomm'.  The bestcomm group isn't physically
+ * part of the MPC5200 interrupt controller, but it is used here to assign
+ * a separate virq number for each bestcomm task (since any of the 16
+ * bestcomm tasks can cause the bestcomm interrupt to be raised).  When a
+ * bestcomm interrupt occurs (peripheral group, irq 0) this driver determines
+ * which task needs servicing and returns the irq number for that task.  This
+ * allows drivers which use bestcomm to define their own interrupt handlers.
+ *
+ * irq_chip structures
+ * -------------------
+ * For actually manipulating IRQs (masking, enabling, clearing, etc) this
+ * driver defines four separate 'irq_chip' structures, one for the main
+ * group, one for the peripherals group, one for the bestcomm group and one
+ * for external interrupts.  The irq_chip structures provide the hooks needed
+ * to manipulate each IRQ source, and since each group is has a separate set
+ * of registers for controlling the irq, it makes sense to divide up the
+ * hooks along those lines.
+ *
+ * You'll notice that there is not an irq_chip for the critical group and
+ * you'll also notice that there is an irq_chip defined for external
+ * interrupts even though there is no external interrupt group.  The reason
+ * for this is that the four external interrupts are all managed with the same
+ * register even though one of the external IRQs is in the critical group and
+ * the other three are in the main group.  For this reason it makes sense for
+ * the 4 external irqs to be managed using a separate set of hooks.  The
+ * reason there is no crit irq_chip is that of the 3 irqs in the critical
+ * group, only external interrupt is actually support at this time by this
+ * driver and since external interrupt is the only one used, it can just
+ * be directed to make use of the external irq irq_chip.
+ *
+ * device tree bindings
+ * --------------------
+ * The device tree bindings for this controller reflect the two level
+ * organization of irqs in the device.  #interrupt-cells = <3> where the
+ * first cell is the group number [0..3], the second cell is the irq
+ * number in the group, and the third cell is the sense type (level/edge).
+ * For reference, the following is a list of the interrupt property values
+ * associated with external interrupt sources on the MPC5200 (just because
+ * it is non-obvious to determine what the interrupts property should be
+ * when reading the mpc5200 manual and it is a frequently asked question).
+ *
+ * External interrupts:
+ * <0 0 n>	external irq0, n is sense	(n=0: level high,
+ * <1 1 n>	external irq1, n is sense	 n=1: edge rising,
+ * <1 2 n>	external irq2, n is sense	 n=2: edge falling,
+ * <1 3 n>	external irq3, n is sense	 n=3: level low)
+ */
 #undef DEBUG
 
 #include <linux/interrupt.h>
@@ -24,11 +104,19 @@
 #include <asm/io.h>
 #include <asm/prom.h>
 #include <asm/mpc52xx.h>
-#include "mpc52xx_pic.h"
 
-/*
- *
-*/
+/* HW IRQ mapping */
+#define MPC52xx_IRQ_L1_CRIT	(0)
+#define MPC52xx_IRQ_L1_MAIN	(1)
+#define MPC52xx_IRQ_L1_PERP	(2)
+#define MPC52xx_IRQ_L1_SDMA	(3)
+
+#define MPC52xx_IRQ_L1_OFFSET	(6)
+#define MPC52xx_IRQ_L1_MASK	(0x00c0)
+#define MPC52xx_IRQ_L2_MASK	(0x003f)
+
+#define MPC52xx_IRQ_HIGHTESTHWIRQ (0xd0)
+
 
 /* MPC5200 device tree match tables */
 static struct of_device_id mpc52xx_pic_ids[] __initdata = {
@@ -53,10 +141,7 @@ static unsigned char mpc52xx_map_senses[4] = {
 	IRQ_TYPE_LEVEL_LOW,
 };
 
-/*
- *
-*/
-
+/* Utility functions */
 static inline void io_be_setbit(u32 __iomem *addr, int bitno)
 {
 	out_be32(addr, in_be32(addr) | (1 << bitno));
@@ -69,15 +154,14 @@ static inline void io_be_clrbit(u32 __iomem *addr, int bitno)
 
 /*
  * IRQ[0-3] interrupt irq_chip
-*/
-
+ */
 static void mpc52xx_extirq_mask(unsigned int virq)
 {
 	int irq;
 	int l2irq;
 
 	irq = irq_map[virq].hwirq;
-	l2irq = (irq & MPC52xx_IRQ_L2_MASK) >> MPC52xx_IRQ_L2_OFFSET;
+	l2irq = irq & MPC52xx_IRQ_L2_MASK;
 
 	pr_debug("%s: irq=%x. l2=%d\n", __func__, irq, l2irq);
 
@@ -90,7 +174,7 @@ static void mpc52xx_extirq_unmask(unsigned int virq)
 	int l2irq;
 
 	irq = irq_map[virq].hwirq;
-	l2irq = (irq & MPC52xx_IRQ_L2_MASK) >> MPC52xx_IRQ_L2_OFFSET;
+	l2irq = irq & MPC52xx_IRQ_L2_MASK;
 
 	pr_debug("%s: irq=%x. l2=%d\n", __func__, irq, l2irq);
 
@@ -103,7 +187,7 @@ static void mpc52xx_extirq_ack(unsigned int virq)
 	int l2irq;
 
 	irq = irq_map[virq].hwirq;
-	l2irq = (irq & MPC52xx_IRQ_L2_MASK) >> MPC52xx_IRQ_L2_OFFSET;
+	l2irq = irq & MPC52xx_IRQ_L2_MASK;
 
 	pr_debug("%s: irq=%x. l2=%d\n", __func__, irq, l2irq);
 
@@ -117,7 +201,7 @@ static int mpc52xx_extirq_set_type(unsigned int virq, unsigned int flow_type)
 	int l2irq;
 
 	irq = irq_map[virq].hwirq;
-	l2irq = (irq & MPC52xx_IRQ_L2_MASK) >> MPC52xx_IRQ_L2_OFFSET;
+	l2irq = irq & MPC52xx_IRQ_L2_MASK;
 
 	pr_debug("%s: irq=%x. l2=%d flow_type=%d\n", __func__, irq, l2irq, flow_type);
 
@@ -156,15 +240,14 @@ static struct irq_chip mpc52xx_extirq_irqchip = {
 
 /*
  * Main interrupt irq_chip
-*/
-
+ */
 static void mpc52xx_main_mask(unsigned int virq)
 {
 	int irq;
 	int l2irq;
 
 	irq = irq_map[virq].hwirq;
-	l2irq = (irq & MPC52xx_IRQ_L2_MASK) >> MPC52xx_IRQ_L2_OFFSET;
+	l2irq = irq & MPC52xx_IRQ_L2_MASK;
 
 	pr_debug("%s: irq=%x. l2=%d\n", __func__, irq, l2irq);
 
@@ -177,7 +260,7 @@ static void mpc52xx_main_unmask(unsigned int virq)
 	int l2irq;
 
 	irq = irq_map[virq].hwirq;
-	l2irq = (irq & MPC52xx_IRQ_L2_MASK) >> MPC52xx_IRQ_L2_OFFSET;
+	l2irq = irq & MPC52xx_IRQ_L2_MASK;
 
 	pr_debug("%s: irq=%x. l2=%d\n", __func__, irq, l2irq);
 
@@ -193,15 +276,14 @@ static struct irq_chip mpc52xx_main_irqchip = {
 
 /*
  * Peripherals interrupt irq_chip
-*/
-
+ */
 static void mpc52xx_periph_mask(unsigned int virq)
 {
 	int irq;
 	int l2irq;
 
 	irq = irq_map[virq].hwirq;
-	l2irq = (irq & MPC52xx_IRQ_L2_MASK) >> MPC52xx_IRQ_L2_OFFSET;
+	l2irq = irq & MPC52xx_IRQ_L2_MASK;
 
 	pr_debug("%s: irq=%x. l2=%d\n", __func__, irq, l2irq);
 
@@ -214,7 +296,7 @@ static void mpc52xx_periph_unmask(unsigned int virq)
 	int l2irq;
 
 	irq = irq_map[virq].hwirq;
-	l2irq = (irq & MPC52xx_IRQ_L2_MASK) >> MPC52xx_IRQ_L2_OFFSET;
+	l2irq = irq & MPC52xx_IRQ_L2_MASK;
 
 	pr_debug("%s: irq=%x. l2=%d\n", __func__, irq, l2irq);
 
@@ -230,15 +312,14 @@ static struct irq_chip mpc52xx_periph_irqchip = {
 
 /*
  * SDMA interrupt irq_chip
-*/
-
+ */
 static void mpc52xx_sdma_mask(unsigned int virq)
 {
 	int irq;
 	int l2irq;
 
 	irq = irq_map[virq].hwirq;
-	l2irq = (irq & MPC52xx_IRQ_L2_MASK) >> MPC52xx_IRQ_L2_OFFSET;
+	l2irq = irq & MPC52xx_IRQ_L2_MASK;
 
 	pr_debug("%s: irq=%x. l2=%d\n", __func__, irq, l2irq);
 
@@ -251,7 +332,7 @@ static void mpc52xx_sdma_unmask(unsigned int virq)
 	int l2irq;
 
 	irq = irq_map[virq].hwirq;
-	l2irq = (irq & MPC52xx_IRQ_L2_MASK) >> MPC52xx_IRQ_L2_OFFSET;
+	l2irq = irq & MPC52xx_IRQ_L2_MASK;
 
 	pr_debug("%s: irq=%x. l2=%d\n", __func__, irq, l2irq);
 
@@ -264,7 +345,7 @@ static void mpc52xx_sdma_ack(unsigned int virq)
 	int l2irq;
 
 	irq = irq_map[virq].hwirq;
-	l2irq = (irq & MPC52xx_IRQ_L2_MASK) >> MPC52xx_IRQ_L2_OFFSET;
+	l2irq = irq & MPC52xx_IRQ_L2_MASK;
 
 	pr_debug("%s: irq=%x. l2=%d\n", __func__, irq, l2irq);
 
@@ -278,13 +359,12 @@ static struct irq_chip mpc52xx_sdma_irqchip = {
 	.ack = mpc52xx_sdma_ack,
 };
 
-/*
- * irq_host
-*/
-
+/**
+ * mpc52xx_irqhost_xlate - translate virq# from device tree interrupts property
+ */
 static int mpc52xx_irqhost_xlate(struct irq_host *h, struct device_node *ct,
-				 u32 * intspec, unsigned int intsize,
-				 irq_hw_number_t * out_hwirq,
+				 u32 *intspec, unsigned int intsize,
+				 irq_hw_number_t *out_hwirq,
 				 unsigned int *out_flags)
 {
 	int intrvect_l1;
@@ -299,10 +379,9 @@ static int mpc52xx_irqhost_xlate(struct irq_host *h, struct device_node *ct,
 	intrvect_l2 = (int)intspec[1];
 	intrvect_type = (int)intspec[2];
 
-	intrvect_linux =
-	    (intrvect_l1 << MPC52xx_IRQ_L1_OFFSET) & MPC52xx_IRQ_L1_MASK;
-	intrvect_linux |=
-	    (intrvect_l2 << MPC52xx_IRQ_L2_OFFSET) & MPC52xx_IRQ_L2_MASK;
+	intrvect_linux = (intrvect_l1 << MPC52xx_IRQ_L1_OFFSET) &
+			 MPC52xx_IRQ_L1_MASK;
+	intrvect_linux |= intrvect_l2 & MPC52xx_IRQ_L2_MASK;
 
 	pr_debug("return %x, l1=%d, l2=%d\n", intrvect_linux, intrvect_l1,
 		 intrvect_l2);
@@ -313,11 +392,11 @@ static int mpc52xx_irqhost_xlate(struct irq_host *h, struct device_node *ct,
 	return 0;
 }
 
-/*
- * this function retrieves the correct IRQ type out
- * of the MPC regs
- * Only externals IRQs needs this
-*/
+/**
+ * mpc52xx_irqx_gettype - determine the IRQ sense type (level/edge)
+ *
+ * Only external IRQs need this.
+ */
 static int mpc52xx_irqx_gettype(int irq)
 {
 	int type;
@@ -329,6 +408,9 @@ static int mpc52xx_irqx_gettype(int irq)
 	return mpc52xx_map_senses[type];
 }
 
+/**
+ * mpc52xx_irqhost_map - Hook to map from virq to an irq_chip structure
+ */
 static int mpc52xx_irqhost_map(struct irq_host *h, unsigned int virq,
 			       irq_hw_number_t irq)
 {
@@ -339,7 +421,7 @@ static int mpc52xx_irqhost_map(struct irq_host *h, unsigned int virq,
 	int type;
 
 	l1irq = (irq & MPC52xx_IRQ_L1_MASK) >> MPC52xx_IRQ_L1_OFFSET;
-	l2irq = (irq & MPC52xx_IRQ_L2_MASK) >> MPC52xx_IRQ_L2_OFFSET;
+	l2irq = irq & MPC52xx_IRQ_L2_MASK;
 
 	/*
 	 * Most of ours IRQs will be level low
@@ -379,8 +461,7 @@ static int mpc52xx_irqhost_map(struct irq_host *h, unsigned int virq,
 		break;
 
 	default:
-		pr_debug("%s: Error, unknown L1 IRQ (0x%x)\n", __func__, l1irq);
-		printk(KERN_ERR "Unknow IRQ!\n");
+		pr_err("%s: invalid virq requested (0x%x)\n", __func__, virq);
 		return -EINVAL;
 	}
 
@@ -406,10 +487,15 @@ static struct irq_host_ops mpc52xx_irqhost_ops = {
 	.map = mpc52xx_irqhost_map,
 };
 
-/*
- * init (public)
-*/
-
+/**
+ * mpc52xx_init_irq - Initialize and register with the virq subsystem
+ *
+ * Hook for setting up IRQs on an mpc5200 system.  A pointer to this function
+ * is to be put into the machine definition structure.
+ *
+ * This function searches the device tree for an MPC5200 interrupt controller,
+ * initializes it, and registers it with the virq subsystem.
+ */
 void __init mpc52xx_init_irq(void)
 {
 	u32 intr_ctrl;
@@ -454,7 +540,6 @@ void __init mpc52xx_init_irq(void)
 	 * As last step, add an irq host to translate the real
 	 * hw irq information provided by the ofw to linux virq
 	 */
-
 	mpc52xx_irqhost = irq_alloc_host(picnode, IRQ_HOST_MAP_LINEAR,
 	                                 MPC52xx_IRQ_HIGHTESTHWIRQ,
 	                                 &mpc52xx_irqhost_ops, -1);
@@ -462,12 +547,38 @@ void __init mpc52xx_init_irq(void)
 	if (!mpc52xx_irqhost)
 		panic(__FILE__ ": Cannot allocate the IRQ host\n");
 
-	printk(KERN_INFO "MPC52xx PIC is up and running!\n");
+	irq_set_default_host(mpc52xx_irqhost);
+
+	pr_info("MPC52xx PIC is up and running!\n");
 }
 
-/*
- * get_irq (public)
-*/
+/**
+ * mpc52xx_get_irq - Get pending interrupt number hook function
+ *
+ * Called by the interupt handler to determine what IRQ handler needs to be
+ * executed.
+ *
+ * Status of pending interrupts is determined by reading the encoded status
+ * register.  The encoded status register has three fields; one for each of the
+ * types of interrupts defined by the controller - 'critical', 'main' and
+ * 'peripheral'.  This function reads the status register and returns the IRQ
+ * number associated with the highest priority pending interrupt.  'Critical'
+ * interrupts have the highest priority, followed by 'main' interrupts, and
+ * then 'peripheral'.
+ *
+ * The mpc5200 interrupt controller can be configured to boost the priority
+ * of individual 'peripheral' interrupts.  If this is the case then a special
+ * value will appear in either the crit or main fields indicating a high
+ * or medium priority peripheral irq has occurred.
+ *
+ * This function checks each of the 3 irq request fields and returns the
+ * first pending interrupt that it finds.
+ *
+ * This function also identifies a 4th type of interrupt; 'bestcomm'.  Each
+ * bestcomm DMA task can raise the bestcomm peripheral interrupt.  When this
+ * occurs at task-specific IRQ# is decoded so that each task can have its
+ * own IRQ handler.
+ */
 unsigned int mpc52xx_get_irq(void)
 {
 	u32 status;
@@ -478,25 +589,21 @@ unsigned int mpc52xx_get_irq(void)
 		irq = (status >> 8) & 0x3;
 		if (irq == 2)	/* high priority peripheral */
 			goto peripheral;
-		irq |=	(MPC52xx_IRQ_L1_CRIT << MPC52xx_IRQ_L1_OFFSET) &
-			MPC52xx_IRQ_L1_MASK;
+		irq |= (MPC52xx_IRQ_L1_CRIT << MPC52xx_IRQ_L1_OFFSET);
 	} else if (status & 0x00200000) {	/* main */
 		irq = (status >> 16) & 0x1f;
 		if (irq == 4)	/* low priority peripheral */
 			goto peripheral;
-		irq |=	(MPC52xx_IRQ_L1_MAIN << MPC52xx_IRQ_L1_OFFSET) &
-			MPC52xx_IRQ_L1_MASK;
+		irq |= (MPC52xx_IRQ_L1_MAIN << MPC52xx_IRQ_L1_OFFSET);
 	} else if (status & 0x20000000) {	/* peripheral */
 	      peripheral:
 		irq = (status >> 24) & 0x1f;
 		if (irq == 0) {	/* bestcomm */
 			status = in_be32(&sdma->IntPend);
 			irq = ffs(status) - 1;
-			irq |=	(MPC52xx_IRQ_L1_SDMA << MPC52xx_IRQ_L1_OFFSET) &
-				MPC52xx_IRQ_L1_MASK;
+			irq |= (MPC52xx_IRQ_L1_SDMA << MPC52xx_IRQ_L1_OFFSET);
 		} else {
-			irq |=	(MPC52xx_IRQ_L1_PERP << MPC52xx_IRQ_L1_OFFSET) &
-				MPC52xx_IRQ_L1_MASK;
+			irq |= (MPC52xx_IRQ_L1_PERP << MPC52xx_IRQ_L1_OFFSET);
 		}
 	}
 
diff --git a/arch/powerpc/platforms/52xx/mpc52xx_pic.h b/arch/powerpc/platforms/52xx/mpc52xx_pic.h
deleted file mode 100644
index 1a26bcdb304..00000000000
--- a/arch/powerpc/platforms/52xx/mpc52xx_pic.h
+++ /dev/null
@@ -1,53 +0,0 @@
-/*
- * Header file for Freescale MPC52xx Interrupt controller
- *
- * Copyright (C) 2004-2005 Sylvain Munaut <tnt@246tNt.com>
- * Copyright (C) 2003 MontaVista, Software, Inc.
- *
- * This file is licensed under the terms of the GNU General Public License
- * version 2. This program is licensed "as is" without any warranty of any
- * kind, whether express or implied.
- */
-
-#ifndef __POWERPC_SYSDEV_MPC52xx_PIC_H__
-#define __POWERPC_SYSDEV_MPC52xx_PIC_H__
-
-#include <asm/types.h>
-
-
-/* HW IRQ mapping */
-#define MPC52xx_IRQ_L1_CRIT	(0)
-#define MPC52xx_IRQ_L1_MAIN	(1)
-#define MPC52xx_IRQ_L1_PERP	(2)
-#define MPC52xx_IRQ_L1_SDMA	(3)
-
-#define MPC52xx_IRQ_L1_OFFSET   (6)
-#define MPC52xx_IRQ_L1_MASK     (0x00c0)
-
-#define MPC52xx_IRQ_L2_OFFSET   (0)
-#define MPC52xx_IRQ_L2_MASK     (0x003f)
-
-#define MPC52xx_IRQ_HIGHTESTHWIRQ (0xd0)
-
-
-/* Interrupt controller Register set */
-struct mpc52xx_intr {
-	u32 per_mask;		/* INTR + 0x00 */
-	u32 per_pri1;		/* INTR + 0x04 */
-	u32 per_pri2;		/* INTR + 0x08 */
-	u32 per_pri3;		/* INTR + 0x0c */
-	u32 ctrl;		/* INTR + 0x10 */
-	u32 main_mask;		/* INTR + 0x14 */
-	u32 main_pri1;		/* INTR + 0x18 */
-	u32 main_pri2;		/* INTR + 0x1c */
-	u32 reserved1;		/* INTR + 0x20 */
-	u32 enc_status;		/* INTR + 0x24 */
-	u32 crit_status;	/* INTR + 0x28 */
-	u32 main_status;	/* INTR + 0x2c */
-	u32 per_status;		/* INTR + 0x30 */
-	u32 reserved2;		/* INTR + 0x34 */
-	u32 per_error;		/* INTR + 0x38 */
-};
-
-#endif /* __POWERPC_SYSDEV_MPC52xx_PIC_H__ */
-
diff --git a/arch/powerpc/platforms/52xx/mpc52xx_pm.c b/arch/powerpc/platforms/52xx/mpc52xx_pm.c
index c72d3304387..a55b0b6813e 100644
--- a/arch/powerpc/platforms/52xx/mpc52xx_pm.c
+++ b/arch/powerpc/platforms/52xx/mpc52xx_pm.c
@@ -5,9 +5,6 @@
 #include <asm/cacheflush.h>
 #include <asm/mpc52xx.h>
 
-#include "mpc52xx_pic.h"
-
-
 /* these are defined in mpc52xx_sleep.S, and only used here */
 extern void mpc52xx_deep_sleep(void __iomem *sram, void __iomem *sdram_regs,
 		struct mpc52xx_cdm __iomem *, struct mpc52xx_intr __iomem*);
diff --git a/arch/powerpc/platforms/82xx/pq2.c b/arch/powerpc/platforms/82xx/pq2.c
index 1b75902fad6..9761a59f175 100644
--- a/arch/powerpc/platforms/82xx/pq2.c
+++ b/arch/powerpc/platforms/82xx/pq2.c
@@ -53,7 +53,7 @@ static void __init pq2_pci_add_bridge(struct device_node *np)
 	if (of_address_to_resource(np, 0, &r) || r.end - r.start < 0x10b)
 		goto err;
 
-	ppc_pci_flags |= PPC_PCI_REASSIGN_ALL_BUS;
+	ppc_pci_add_flags(PPC_PCI_REASSIGN_ALL_BUS);
 
 	hose = pcibios_alloc_controller(np);
 	if (!hose)
diff --git a/arch/powerpc/platforms/85xx/Makefile b/arch/powerpc/platforms/85xx/Makefile
index cb3054e1001..f0798c09980 100644
--- a/arch/powerpc/platforms/85xx/Makefile
+++ b/arch/powerpc/platforms/85xx/Makefile
@@ -1,6 +1,8 @@
 #
 # Makefile for the PowerPC 85xx linux kernel.
 #
+obj-$(CONFIG_SMP) += smp.o
+
 obj-$(CONFIG_MPC8540_ADS) += mpc85xx_ads.o
 obj-$(CONFIG_MPC8560_ADS) += mpc85xx_ads.o
 obj-$(CONFIG_MPC85xx_CDS) += mpc85xx_cds.o
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_ds.c b/arch/powerpc/platforms/85xx/mpc85xx_ds.c
index 613bf8c2e30..a8301c8ad53 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_ds.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_ds.c
@@ -63,6 +63,7 @@ void __init mpc85xx_ds_pic_init(void)
 	struct device_node *cascade_node = NULL;
 	int cascade_irq;
 #endif
+	unsigned long root = of_get_flat_dt_root();
 
 	np = of_find_node_by_type(NULL, "open-pic");
 	if (np == NULL) {
@@ -76,11 +77,19 @@ void __init mpc85xx_ds_pic_init(void)
 		return;
 	}
 
-	mpic = mpic_alloc(np, r.start,
+	if (of_flat_dt_is_compatible(root, "fsl,MPC8572DS-CAMP")) {
+		mpic = mpic_alloc(np, r.start,
+			MPIC_PRIMARY |
+			MPIC_BIG_ENDIAN | MPIC_BROKEN_FRR_NIRQS,
+			0, 256, " OpenPIC  ");
+	} else {
+		mpic = mpic_alloc(np, r.start,
 			  MPIC_PRIMARY | MPIC_WANTS_RESET |
 			  MPIC_BIG_ENDIAN | MPIC_BROKEN_FRR_NIRQS |
 			  MPIC_SINGLE_DEST_CPU,
 			0, 256, " OpenPIC  ");
+	}
+
 	BUG_ON(mpic == NULL);
 	of_node_put(np);
 
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_mds.c b/arch/powerpc/platforms/85xx/mpc85xx_mds.c
index 2494c515591..658a36fab3a 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_mds.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_mds.c
@@ -231,7 +231,7 @@ static void __init mpc85xx_mds_setup_arch(void)
 
 static int __init board_fixups(void)
 {
-	char phy_id[BUS_ID_SIZE];
+	char phy_id[20];
 	char *compstrs[2] = {"fsl,gianfar-mdio", "fsl,ucc-mdio"};
 	struct device_node *mdio;
 	struct resource res;
@@ -241,13 +241,15 @@ static int __init board_fixups(void)
 		mdio = of_find_compatible_node(NULL, NULL, compstrs[i]);
 
 		of_address_to_resource(mdio, 0, &res);
-		snprintf(phy_id, BUS_ID_SIZE, "%x:%02x", res.start, 1);
+		snprintf(phy_id, sizeof(phy_id), "%llx:%02x",
+			(unsigned long long)res.start, 1);
 
 		phy_register_fixup_for_id(phy_id, mpc8568_fixup_125_clock);
 		phy_register_fixup_for_id(phy_id, mpc8568_mds_phy_fixups);
 
 		/* Register a workaround for errata */
-		snprintf(phy_id, BUS_ID_SIZE, "%x:%02x", res.start, 7);
+		snprintf(phy_id, sizeof(phy_id), "%llx:%02x",
+			(unsigned long long)res.start, 7);
 		phy_register_fixup_for_id(phy_id, mpc8568_mds_phy_fixups);
 
 		of_node_put(mdio);
diff --git a/arch/powerpc/platforms/85xx/smp.c b/arch/powerpc/platforms/85xx/smp.c
new file mode 100644
index 00000000000..d652c713f49
--- /dev/null
+++ b/arch/powerpc/platforms/85xx/smp.c
@@ -0,0 +1,104 @@
+/*
+ * Author: Andy Fleming <afleming@freescale.com>
+ * 	   Kumar Gala <galak@kernel.crashing.org>
+ *
+ * Copyright 2006-2008 Freescale Semiconductor Inc.
+ *
+ * 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/stddef.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/of.h>
+
+#include <asm/machdep.h>
+#include <asm/pgtable.h>
+#include <asm/page.h>
+#include <asm/mpic.h>
+#include <asm/cacheflush.h>
+
+#include <sysdev/fsl_soc.h>
+
+extern volatile unsigned long __secondary_hold_acknowledge;
+extern void __early_start(void);
+
+#define BOOT_ENTRY_ADDR_UPPER	0
+#define BOOT_ENTRY_ADDR_LOWER	1
+#define BOOT_ENTRY_R3_UPPER	2
+#define BOOT_ENTRY_R3_LOWER	3
+#define BOOT_ENTRY_RESV		4
+#define BOOT_ENTRY_PIR		5
+#define BOOT_ENTRY_R6_UPPER	6
+#define BOOT_ENTRY_R6_LOWER	7
+#define NUM_BOOT_ENTRY		8
+#define SIZE_BOOT_ENTRY		(NUM_BOOT_ENTRY * sizeof(u32))
+
+static void __init
+smp_85xx_kick_cpu(int nr)
+{
+	unsigned long flags;
+	const u64 *cpu_rel_addr;
+	__iomem u32 *bptr_vaddr;
+	struct device_node *np;
+	int n = 0;
+
+	WARN_ON (nr < 0 || nr >= NR_CPUS);
+
+	pr_debug("smp_85xx_kick_cpu: kick CPU #%d\n", nr);
+
+	local_irq_save(flags);
+
+	np = of_get_cpu_node(nr, NULL);
+	cpu_rel_addr = of_get_property(np, "cpu-release-addr", NULL);
+
+	if (cpu_rel_addr == NULL) {
+		printk(KERN_ERR "No cpu-release-addr for cpu %d\n", nr);
+		return;
+	}
+
+	/* Map the spin table */
+	bptr_vaddr = ioremap(*cpu_rel_addr, SIZE_BOOT_ENTRY);
+
+	out_be32(bptr_vaddr + BOOT_ENTRY_PIR, nr);
+	out_be32(bptr_vaddr + BOOT_ENTRY_ADDR_LOWER, __pa(__early_start));
+
+	/* Wait a bit for the CPU to ack. */
+	while ((__secondary_hold_acknowledge != nr) && (++n < 1000))
+		mdelay(1);
+
+	iounmap(bptr_vaddr);
+
+	local_irq_restore(flags);
+
+	pr_debug("waited %d msecs for CPU #%d.\n", n, nr);
+}
+
+static void __init
+smp_85xx_setup_cpu(int cpu_nr)
+{
+	mpic_setup_this_cpu();
+
+	/* Clear any pending timer interrupts */
+	mtspr(SPRN_TSR, TSR_ENW | TSR_WIS | TSR_DIS | TSR_FIS);
+
+	/* Enable decrementer interrupt */
+	mtspr(SPRN_TCR, TCR_DIE);
+}
+
+struct smp_ops_t smp_85xx_ops = {
+	.message_pass = smp_mpic_message_pass,
+	.probe = smp_mpic_probe,
+	.kick_cpu = smp_85xx_kick_cpu,
+	.setup_cpu = smp_85xx_setup_cpu,
+};
+
+void __init
+mpc85xx_smp_init(void)
+{
+	smp_ops = &smp_85xx_ops;
+}
diff --git a/arch/powerpc/platforms/86xx/Kconfig b/arch/powerpc/platforms/86xx/Kconfig
index 77dd797a258..8e569393597 100644
--- a/arch/powerpc/platforms/86xx/Kconfig
+++ b/arch/powerpc/platforms/86xx/Kconfig
@@ -34,6 +34,8 @@ config MPC8610_HPCD
 config GEF_SBC610
 	bool "GE Fanuc SBC610"
 	select DEFAULT_UIMAGE
+	select GENERIC_GPIO
+	select ARCH_REQUIRE_GPIOLIB
 	select HAS_RAPIDIO
 	help
 	  This option enables support for GE Fanuc's SBC610.
diff --git a/arch/powerpc/platforms/86xx/Makefile b/arch/powerpc/platforms/86xx/Makefile
index 4a56ff619af..31e540c2ebb 100644
--- a/arch/powerpc/platforms/86xx/Makefile
+++ b/arch/powerpc/platforms/86xx/Makefile
@@ -7,4 +7,5 @@ obj-$(CONFIG_SMP)		+= mpc86xx_smp.o
 obj-$(CONFIG_MPC8641_HPCN)	+= mpc86xx_hpcn.o
 obj-$(CONFIG_SBC8641D)		+= sbc8641d.o
 obj-$(CONFIG_MPC8610_HPCD)	+= mpc8610_hpcd.o
-obj-$(CONFIG_GEF_SBC610)	+= gef_sbc610.o gef_pic.o
+gef-gpio-$(CONFIG_GPIOLIB)	+= gef_gpio.o
+obj-$(CONFIG_GEF_SBC610)	+= gef_sbc610.o gef_pic.o $(gef-gpio-y)
diff --git a/arch/powerpc/platforms/86xx/gef_gpio.c b/arch/powerpc/platforms/86xx/gef_gpio.c
new file mode 100644
index 00000000000..85b2800f4cb
--- /dev/null
+++ b/arch/powerpc/platforms/86xx/gef_gpio.c
@@ -0,0 +1,143 @@
+/*
+ * Driver for GE Fanuc's FPGA based GPIO pins
+ *
+ * Author: Martyn Welch <martyn.welch@gefanuc.com>
+ *
+ * 2008 (c) GE Fanuc Intelligent Platforms Embedded Systems, Inc.
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2.  This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+/* TODO
+ *
+ * Configuration of output modes (totem-pole/open-drain)
+ * Interrupt configuration - interrupts are always generated the FPGA relies on
+ * 	the I/O interrupt controllers mask to stop them propergating
+ */
+
+#include <linux/kernel.h>
+#include <linux/compiler.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/of_platform.h>
+#include <linux/of_gpio.h>
+#include <linux/gpio.h>
+
+#define GEF_GPIO_DIRECT		0x00
+#define GEF_GPIO_IN		0x04
+#define GEF_GPIO_OUT		0x08
+#define GEF_GPIO_TRIG		0x0C
+#define GEF_GPIO_POLAR_A	0x10
+#define GEF_GPIO_POLAR_B	0x14
+#define GEF_GPIO_INT_STAT	0x18
+#define GEF_GPIO_OVERRUN	0x1C
+#define GEF_GPIO_MODE		0x20
+
+#define NUM_GPIO 19
+
+static void _gef_gpio_set(void __iomem *reg, unsigned int offset, int value)
+{
+	unsigned int data;
+
+	data = ioread32be(reg);
+	/* value: 0=low; 1=high */
+	if (value & 0x1)
+		data = data | (0x1 << offset);
+	else
+		data = data & ~(0x1 << offset);
+
+	iowrite32be(data, reg);
+}
+
+
+static int gef_gpio_dir_in(struct gpio_chip *chip, unsigned offset)
+{
+	unsigned int data;
+	struct of_mm_gpio_chip *mmchip = to_of_mm_gpio_chip(chip);
+
+	data = ioread32be(mmchip->regs + GEF_GPIO_DIRECT);
+	data = data | (0x1 << offset);
+	iowrite32be(data, mmchip->regs + GEF_GPIO_DIRECT);
+
+	return 0;
+}
+
+static int gef_gpio_dir_out(struct gpio_chip *chip, unsigned offset, int value)
+{
+	unsigned int data;
+	struct of_mm_gpio_chip *mmchip = to_of_mm_gpio_chip(chip);
+
+	/* Set direction before switching to input */
+	_gef_gpio_set(mmchip->regs + GEF_GPIO_OUT, offset, value);
+
+	data = ioread32be(mmchip->regs + GEF_GPIO_DIRECT);
+	data = data & ~(0x1 << offset);
+	iowrite32be(data, mmchip->regs + GEF_GPIO_DIRECT);
+
+	return 0;
+}
+
+static int gef_gpio_get(struct gpio_chip *chip, unsigned offset)
+{
+	unsigned int data;
+	int state = 0;
+	struct of_mm_gpio_chip *mmchip = to_of_mm_gpio_chip(chip);
+
+	data = ioread32be(mmchip->regs + GEF_GPIO_IN);
+	state = (int)((data >> offset) & 0x1);
+
+	return state;
+}
+
+static void gef_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
+{
+	struct of_mm_gpio_chip *mmchip = to_of_mm_gpio_chip(chip);
+
+	_gef_gpio_set(mmchip->regs + GEF_GPIO_OUT, offset, value);
+}
+
+static int __init gef_gpio_init(void)
+{
+	struct device_node *np;
+
+	for_each_compatible_node(np, NULL, "gef,sbc610-gpio") {
+		int retval;
+		struct of_mm_gpio_chip *gef_gpio_chip;
+
+		pr_debug("%s: Initialising GEF GPIO\n", np->full_name);
+
+		/* Allocate chip structure */
+		gef_gpio_chip = kzalloc(sizeof(*gef_gpio_chip), GFP_KERNEL);
+		if (!gef_gpio_chip) {
+			pr_err("%s: Unable to allocate structure\n",
+				np->full_name);
+			continue;
+		}
+
+		/* Setup pointers to chip functions */
+		gef_gpio_chip->of_gc.gpio_cells = 2;
+		gef_gpio_chip->of_gc.gc.ngpio = NUM_GPIO;
+		gef_gpio_chip->of_gc.gc.direction_input = gef_gpio_dir_in;
+		gef_gpio_chip->of_gc.gc.direction_output = gef_gpio_dir_out;
+		gef_gpio_chip->of_gc.gc.get = gef_gpio_get;
+		gef_gpio_chip->of_gc.gc.set = gef_gpio_set;
+
+		/* This function adds a memory mapped GPIO chip */
+		retval = of_mm_gpiochip_add(np, gef_gpio_chip);
+		if (retval) {
+			kfree(gef_gpio_chip);
+			pr_err("%s: Unable to add GPIO\n", np->full_name);
+		}
+	}
+
+	return 0;
+};
+arch_initcall(gef_gpio_init);
+
+MODULE_DESCRIPTION("GE Fanuc I/O FPGA GPIO driver");
+MODULE_AUTHOR("Martyn Welch <martyn.welch@gefanuc.com");
+MODULE_LICENSE("GPL");
diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype
index 548efa55c8f..3d0c776f888 100644
--- a/arch/powerpc/platforms/Kconfig.cputype
+++ b/arch/powerpc/platforms/Kconfig.cputype
@@ -195,16 +195,24 @@ config SPE
 
 config PPC_STD_MMU
 	bool
-	depends on 6xx || POWER3 || POWER4 || PPC64
+	depends on 6xx || PPC64
 	default y
 
 config PPC_STD_MMU_32
 	def_bool y
 	depends on PPC_STD_MMU && PPC32
 
+config PPC_STD_MMU_64
+	def_bool y
+	depends on PPC_STD_MMU && PPC64
+
+config PPC_MMU_NOHASH
+	def_bool y
+	depends on !PPC_STD_MMU
+
 config PPC_MM_SLICES
 	bool
-	default y if HUGETLB_PAGE || PPC_64K_PAGES
+	default y if HUGETLB_PAGE || (PPC_STD_MMU_64 && PPC_64K_PAGES)
 	default n
 
 config VIRT_CPU_ACCOUNTING
diff --git a/arch/powerpc/platforms/cell/Kconfig b/arch/powerpc/platforms/cell/Kconfig
index c14d7d8d96c..5cc3279559a 100644
--- a/arch/powerpc/platforms/cell/Kconfig
+++ b/arch/powerpc/platforms/cell/Kconfig
@@ -2,13 +2,18 @@ config PPC_CELL
 	bool
 	default n
 
-config PPC_CELL_NATIVE
+config PPC_CELL_COMMON
 	bool
 	select PPC_CELL
 	select PPC_DCR_MMIO
-	select PPC_OF_PLATFORM_PCI
 	select PPC_INDIRECT_IO
 	select PPC_NATIVE
+	select PPC_RTAS
+
+config PPC_CELL_NATIVE
+	bool
+	select PPC_CELL_COMMON
+	select PPC_OF_PLATFORM_PCI
 	select MPIC
 	select IBM_NEW_EMAC_EMAC4
 	select IBM_NEW_EMAC_RGMII
@@ -20,7 +25,6 @@ config PPC_IBM_CELL_BLADE
 	bool "IBM Cell Blade"
 	depends on PPC_MULTIPLATFORM && PPC64
 	select PPC_CELL_NATIVE
-	select PPC_RTAS
 	select MMIO_NVRAM
 	select PPC_UDBG_16550
 	select UDBG_RTAS_CONSOLE
@@ -28,16 +32,17 @@ config PPC_IBM_CELL_BLADE
 config PPC_CELLEB
 	bool "Toshiba's Cell Reference Set 'Celleb' Architecture"
 	depends on PPC_MULTIPLATFORM && PPC64
-	select PPC_CELL
 	select PPC_CELL_NATIVE
-	select PPC_RTAS
-	select PPC_INDIRECT_IO
-	select PPC_OF_PLATFORM_PCI
 	select HAS_TXX9_SERIAL
 	select PPC_UDBG_BEAT
 	select USB_OHCI_BIG_ENDIAN_MMIO
 	select USB_EHCI_BIG_ENDIAN_MMIO
 
+config PPC_CELL_QPACE
+	bool "IBM Cell - QPACE"
+	depends on PPC_MULTIPLATFORM && PPC64
+	select PPC_CELL_COMMON
+
 menu "Cell Broadband Engine options"
 	depends on PPC_CELL
 
@@ -102,7 +107,7 @@ config PPC_IBM_CELL_POWERBUTTON
 config CBE_THERM
 	tristate "CBE thermal support"
 	default m
-	depends on CBE_RAS
+	depends on CBE_RAS && SPU_BASE
 
 config CBE_CPUFREQ
 	tristate "CBE frequency scaling"
@@ -136,5 +141,5 @@ endmenu
 
 config OPROFILE_CELL
 	def_bool y
-	depends on PPC_CELL_NATIVE && (OPROFILE = m || OPROFILE = y)
+	depends on PPC_CELL_NATIVE && (OPROFILE = m || OPROFILE = y) && SPU_BASE
 
diff --git a/arch/powerpc/platforms/cell/Makefile b/arch/powerpc/platforms/cell/Makefile
index 7fd830872c4..43eccb27030 100644
--- a/arch/powerpc/platforms/cell/Makefile
+++ b/arch/powerpc/platforms/cell/Makefile
@@ -1,7 +1,7 @@
-obj-$(CONFIG_PPC_CELL_NATIVE)		+= interrupt.o iommu.o setup.o \
-					   cbe_regs.o spider-pic.o \
-					   pervasive.o pmu.o io-workarounds.o \
-					   spider-pci.o
+obj-$(CONFIG_PPC_CELL_COMMON)		+= cbe_regs.o interrupt.o pervasive.o
+
+obj-$(CONFIG_PPC_CELL_NATIVE)		+= iommu.o setup.o spider-pic.o \
+					   pmu.o io-workarounds.o spider-pci.o
 obj-$(CONFIG_CBE_RAS)			+= ras.o
 
 obj-$(CONFIG_CBE_THERM)			+= cbe_thermal.o
@@ -14,13 +14,12 @@ obj-$(CONFIG_PPC_IBM_CELL_POWERBUTTON)	+= cbe_powerbutton.o
 
 ifeq ($(CONFIG_SMP),y)
 obj-$(CONFIG_PPC_CELL_NATIVE)		+= smp.o
+obj-$(CONFIG_PPC_CELL_QPACE)		+= smp.o
 endif
 
 # needed only when building loadable spufs.ko
-spu-priv1-$(CONFIG_PPC_CELL_NATIVE)	+= spu_priv1_mmio.o
-
-spu-manage-$(CONFIG_PPC_CELLEB)		+= spu_manage.o
-spu-manage-$(CONFIG_PPC_CELL_NATIVE)	+= spu_manage.o
+spu-priv1-$(CONFIG_PPC_CELL_COMMON)	+= spu_priv1_mmio.o
+spu-manage-$(CONFIG_PPC_CELL_COMMON)	+= spu_manage.o
 
 obj-$(CONFIG_SPU_BASE)			+= spu_callbacks.o spu_base.o \
 					   spu_notify.o \
@@ -31,6 +30,8 @@ obj-$(CONFIG_SPU_BASE)			+= spu_callbacks.o spu_base.o \
 
 obj-$(CONFIG_PCI_MSI)			+= axon_msi.o
 
+# qpace setup
+obj-$(CONFIG_PPC_CELL_QPACE)		+= qpace_setup.o
 
 # celleb stuff
 ifeq ($(CONFIG_PPC_CELLEB),y)
diff --git a/arch/powerpc/platforms/cell/axon_msi.c b/arch/powerpc/platforms/cell/axon_msi.c
index 442cf36aa17..0ce45c2b42f 100644
--- a/arch/powerpc/platforms/cell/axon_msi.c
+++ b/arch/powerpc/platforms/cell/axon_msi.c
@@ -413,6 +413,9 @@ static int axon_msi_probe(struct of_device *device,
 			MSIC_CTRL_IRQ_ENABLE | MSIC_CTRL_ENABLE |
 			MSIC_CTRL_FIFO_SIZE);
 
+	msic->read_offset = dcr_read(msic->dcr_host, MSIC_WRITE_OFFSET_REG)
+				& MSIC_FIFO_SIZE_MASK;
+
 	device->dev.platform_data = msic;
 
 	ppc_md.setup_msi_irqs = axon_msi_setup_msi_irqs;
diff --git a/arch/powerpc/platforms/cell/celleb_setup.c b/arch/powerpc/platforms/cell/celleb_setup.c
index b11cb30decb..07c234f6b2b 100644
--- a/arch/powerpc/platforms/cell/celleb_setup.c
+++ b/arch/powerpc/platforms/cell/celleb_setup.c
@@ -45,7 +45,6 @@
 #include <asm/mmu.h>
 #include <asm/processor.h>
 #include <asm/io.h>
-#include <asm/kexec.h>
 #include <asm/prom.h>
 #include <asm/machdep.h>
 #include <asm/cputable.h>
@@ -226,9 +225,6 @@ define_machine(celleb_beat) {
 	.pci_setup_phb		= celleb_setup_phb,
 #ifdef CONFIG_KEXEC
 	.kexec_cpu_down		= beat_kexec_cpu_down,
-	.machine_kexec		= default_machine_kexec,
-	.machine_kexec_prepare	= default_machine_kexec_prepare,
-	.machine_crash_shutdown	= default_machine_crash_shutdown,
 #endif
 };
 
@@ -248,9 +244,4 @@ define_machine(celleb_native) {
 	.pci_probe_mode 	= celleb_pci_probe_mode,
 	.pci_setup_phb		= celleb_setup_phb,
 	.init_IRQ		= celleb_init_IRQ_native,
-#ifdef CONFIG_KEXEC
-	.machine_kexec		= default_machine_kexec,
-	.machine_kexec_prepare	= default_machine_kexec_prepare,
-	.machine_crash_shutdown	= default_machine_crash_shutdown,
-#endif
 };
diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c
index 3168272ab0d..86db4dd170a 100644
--- a/arch/powerpc/platforms/cell/iommu.c
+++ b/arch/powerpc/platforms/cell/iommu.c
@@ -1053,10 +1053,7 @@ static int __init cell_iommu_fixed_mapping_init(void)
 	}
 
 	/* We must have dma-ranges properties for fixed mapping to work */
-	for (np = NULL; (np = of_find_all_nodes(np));) {
-		if (of_find_property(np, "dma-ranges", NULL))
-			break;
-	}
+	np = of_find_node_with_property(NULL, "dma-ranges");
 	of_node_put(np);
 
 	if (!np) {
diff --git a/arch/powerpc/platforms/cell/qpace_setup.c b/arch/powerpc/platforms/cell/qpace_setup.c
new file mode 100644
index 00000000000..be84e6a16b3
--- /dev/null
+++ b/arch/powerpc/platforms/cell/qpace_setup.c
@@ -0,0 +1,152 @@
+/*
+ *  linux/arch/powerpc/platforms/cell/qpace_setup.c
+ *
+ *  Copyright (C) 1995  Linus Torvalds
+ *  Adapted from 'alpha' version by Gary Thomas
+ *  Modified by Cort Dougan (cort@cs.nmt.edu)
+ *  Modified by PPC64 Team, IBM Corp
+ *  Modified by Cell Team, IBM Deutschland Entwicklung GmbH
+ *  Modified by Benjamin Krill <ben@codiert.org>, IBM Corp.
+ *
+ * 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/sched.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/irq.h>
+#include <linux/console.h>
+#include <linux/of_platform.h>
+
+#include <asm/mmu.h>
+#include <asm/processor.h>
+#include <asm/io.h>
+#include <asm/kexec.h>
+#include <asm/pgtable.h>
+#include <asm/prom.h>
+#include <asm/rtas.h>
+#include <asm/dma.h>
+#include <asm/machdep.h>
+#include <asm/time.h>
+#include <asm/cputable.h>
+#include <asm/irq.h>
+#include <asm/spu.h>
+#include <asm/spu_priv1.h>
+#include <asm/udbg.h>
+#include <asm/cell-regs.h>
+
+#include "interrupt.h"
+#include "pervasive.h"
+#include "ras.h"
+#include "io-workarounds.h"
+
+static void qpace_show_cpuinfo(struct seq_file *m)
+{
+	struct device_node *root;
+	const char *model = "";
+
+	root = of_find_node_by_path("/");
+	if (root)
+		model = of_get_property(root, "model", NULL);
+	seq_printf(m, "machine\t\t: CHRP %s\n", model);
+	of_node_put(root);
+}
+
+static void qpace_progress(char *s, unsigned short hex)
+{
+	printk("*** %04x : %s\n", hex, s ? s : "");
+}
+
+static int __init qpace_publish_devices(void)
+{
+	int node;
+
+	/* Publish OF platform devices for southbridge IOs */
+	of_platform_bus_probe(NULL, NULL, NULL);
+
+	/* There is no device for the MIC memory controller, thus we create
+	 * a platform device for it to attach the EDAC driver to.
+	 */
+	for_each_online_node(node) {
+		if (cbe_get_cpu_mic_tm_regs(cbe_node_to_cpu(node)) == NULL)
+			continue;
+		platform_device_register_simple("cbe-mic", node, NULL, 0);
+	}
+
+	return 0;
+}
+machine_subsys_initcall(qpace, qpace_publish_devices);
+
+extern int qpace_notify(struct device *dev)
+{
+	/* set dma_ops for of_platform bus */
+	if (dev->bus && dev->bus->name
+			&& !strcmp(dev->bus->name, "of_platform"))
+		set_dma_ops(dev, &dma_direct_ops);
+
+	return 0;
+}
+
+static void __init qpace_setup_arch(void)
+{
+#ifdef CONFIG_SPU_BASE
+	spu_priv1_ops = &spu_priv1_mmio_ops;
+	spu_management_ops = &spu_management_of_ops;
+#endif
+
+	cbe_regs_init();
+
+#ifdef CONFIG_CBE_RAS
+	cbe_ras_init();
+#endif
+
+#ifdef CONFIG_SMP
+	smp_init_cell();
+#endif
+
+	/* init to some ~sane value until calibrate_delay() runs */
+	loops_per_jiffy = 50000000;
+
+	cbe_pervasive_init();
+#ifdef CONFIG_DUMMY_CONSOLE
+	conswitchp = &dummy_con;
+#endif
+
+	/* set notifier function */
+	platform_notify = &qpace_notify;
+}
+
+static int __init qpace_probe(void)
+{
+	unsigned long root = of_get_flat_dt_root();
+
+	if (!of_flat_dt_is_compatible(root, "IBM,QPACE"))
+		return 0;
+
+	hpte_init_native();
+
+	return 1;
+}
+
+define_machine(qpace) {
+	.name			= "QPACE",
+	.probe			= qpace_probe,
+	.setup_arch		= qpace_setup_arch,
+	.show_cpuinfo		= qpace_show_cpuinfo,
+	.restart		= rtas_restart,
+	.power_off		= rtas_power_off,
+	.halt			= rtas_halt,
+	.get_boot_time		= rtas_get_boot_time,
+	.calibrate_decr		= generic_calibrate_decr,
+	.progress		= qpace_progress,
+	.init_IRQ		= iic_init_IRQ,
+#ifdef CONFIG_KEXEC
+	.machine_kexec		= default_machine_kexec,
+	.machine_kexec_prepare	= default_machine_kexec_prepare,
+	.machine_crash_shutdown	= default_machine_crash_shutdown,
+#endif
+};
diff --git a/arch/powerpc/platforms/cell/setup.c b/arch/powerpc/platforms/cell/setup.c
index ab721b50fbb..59305369f6b 100644
--- a/arch/powerpc/platforms/cell/setup.c
+++ b/arch/powerpc/platforms/cell/setup.c
@@ -35,7 +35,6 @@
 #include <asm/mmu.h>
 #include <asm/processor.h>
 #include <asm/io.h>
-#include <asm/kexec.h>
 #include <asm/pgtable.h>
 #include <asm/prom.h>
 #include <asm/rtas.h>
@@ -289,9 +288,4 @@ define_machine(cell) {
 	.progress		= cell_progress,
 	.init_IRQ       	= cell_init_irq,
 	.pci_setup_phb		= cell_setup_phb,
-#ifdef CONFIG_KEXEC
-	.machine_kexec		= default_machine_kexec,
-	.machine_kexec_prepare	= default_machine_kexec_prepare,
-	.machine_crash_shutdown	= default_machine_crash_shutdown,
-#endif
 };
diff --git a/arch/powerpc/platforms/cell/spufs/file.c b/arch/powerpc/platforms/cell/spufs/file.c
index 1b26071a86c..7106b63d401 100644
--- a/arch/powerpc/platforms/cell/spufs/file.c
+++ b/arch/powerpc/platforms/cell/spufs/file.c
@@ -273,12 +273,10 @@ spufs_mem_mmap_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
 		return VM_FAULT_NOPAGE;
 
 	if (ctx->state == SPU_STATE_SAVED) {
-		vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot)
-							& ~_PAGE_NO_CACHE);
+		vma->vm_page_prot = pgprot_cached(vma->vm_page_prot);
 		pfn = vmalloc_to_pfn(ctx->csa.lscsa->ls + offset);
 	} else {
-		vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot)
-					     | _PAGE_NO_CACHE);
+		vma->vm_page_prot = pgprot_noncached_wc(vma->vm_page_prot);
 		pfn = (ctx->spu->local_store_phys + offset) >> PAGE_SHIFT;
 	}
 	vm_insert_pfn(vma, address, pfn);
@@ -338,8 +336,7 @@ static int spufs_mem_mmap(struct file *file, struct vm_area_struct *vma)
 		return -EINVAL;
 
 	vma->vm_flags |= VM_IO | VM_PFNMAP;
-	vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot)
-				     | _PAGE_NO_CACHE);
+	vma->vm_page_prot = pgprot_noncached_wc(vma->vm_page_prot);
 
 	vma->vm_ops = &spufs_mem_mmap_vmops;
 	return 0;
@@ -452,8 +449,7 @@ static int spufs_cntl_mmap(struct file *file, struct vm_area_struct *vma)
 		return -EINVAL;
 
 	vma->vm_flags |= VM_IO | VM_PFNMAP;
-	vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot)
-				     | _PAGE_NO_CACHE | _PAGE_GUARDED);
+	vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
 
 	vma->vm_ops = &spufs_cntl_mmap_vmops;
 	return 0;
@@ -1155,8 +1151,7 @@ static int spufs_signal1_mmap(struct file *file, struct vm_area_struct *vma)
 		return -EINVAL;
 
 	vma->vm_flags |= VM_IO | VM_PFNMAP;
-	vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot)
-				     | _PAGE_NO_CACHE | _PAGE_GUARDED);
+	vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
 
 	vma->vm_ops = &spufs_signal1_mmap_vmops;
 	return 0;
@@ -1292,8 +1287,7 @@ static int spufs_signal2_mmap(struct file *file, struct vm_area_struct *vma)
 		return -EINVAL;
 
 	vma->vm_flags |= VM_IO | VM_PFNMAP;
-	vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot)
-				     | _PAGE_NO_CACHE | _PAGE_GUARDED);
+	vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
 
 	vma->vm_ops = &spufs_signal2_mmap_vmops;
 	return 0;
@@ -1414,8 +1408,7 @@ static int spufs_mss_mmap(struct file *file, struct vm_area_struct *vma)
 		return -EINVAL;
 
 	vma->vm_flags |= VM_IO | VM_PFNMAP;
-	vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot)
-				     | _PAGE_NO_CACHE | _PAGE_GUARDED);
+	vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
 
 	vma->vm_ops = &spufs_mss_mmap_vmops;
 	return 0;
@@ -1476,8 +1469,7 @@ static int spufs_psmap_mmap(struct file *file, struct vm_area_struct *vma)
 		return -EINVAL;
 
 	vma->vm_flags |= VM_IO | VM_PFNMAP;
-	vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot)
-				     | _PAGE_NO_CACHE | _PAGE_GUARDED);
+	vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
 
 	vma->vm_ops = &spufs_psmap_mmap_vmops;
 	return 0;
@@ -1536,8 +1528,7 @@ static int spufs_mfc_mmap(struct file *file, struct vm_area_struct *vma)
 		return -EINVAL;
 
 	vma->vm_flags |= VM_IO | VM_PFNMAP;
-	vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot)
-				     | _PAGE_NO_CACHE | _PAGE_GUARDED);
+	vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
 
 	vma->vm_ops = &spufs_mfc_mmap_vmops;
 	return 0;
diff --git a/arch/powerpc/platforms/cell/spufs/inode.c b/arch/powerpc/platforms/cell/spufs/inode.c
index cb85d237e49..6296bfd9cb0 100644
--- a/arch/powerpc/platforms/cell/spufs/inode.c
+++ b/arch/powerpc/platforms/cell/spufs/inode.c
@@ -95,8 +95,8 @@ spufs_new_inode(struct super_block *sb, int mode)
 		goto out;
 
 	inode->i_mode = mode;
-	inode->i_uid = current->fsuid;
-	inode->i_gid = current->fsgid;
+	inode->i_uid = current_fsuid();
+	inode->i_gid = current_fsgid();
 	inode->i_blocks = 0;
 	inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
 out:
@@ -323,7 +323,7 @@ static int spufs_context_open(struct dentry *dentry, struct vfsmount *mnt)
 		goto out;
 	}
 
-	filp = dentry_open(dentry, mnt, O_RDONLY);
+	filp = dentry_open(dentry, mnt, O_RDONLY, current_cred());
 	if (IS_ERR(filp)) {
 		put_unused_fd(ret);
 		ret = PTR_ERR(filp);
@@ -562,7 +562,7 @@ static int spufs_gang_open(struct dentry *dentry, struct vfsmount *mnt)
 		goto out;
 	}
 
-	filp = dentry_open(dentry, mnt, O_RDONLY);
+	filp = dentry_open(dentry, mnt, O_RDONLY, current_cred());
 	if (IS_ERR(filp)) {
 		put_unused_fd(ret);
 		ret = PTR_ERR(filp);
diff --git a/arch/powerpc/platforms/chrp/pci.c b/arch/powerpc/platforms/chrp/pci.c
index d3cde6b9d2d..f6b0c519d5a 100644
--- a/arch/powerpc/platforms/chrp/pci.c
+++ b/arch/powerpc/platforms/chrp/pci.c
@@ -141,6 +141,7 @@ hydra_init(void)
 		of_node_put(np);
 		return 0;
 	}
+	of_node_put(np);
 	Hydra = ioremap(r.start, r.end-r.start);
 	printk("Hydra Mac I/O at %llx\n", (unsigned long long)r.start);
 	printk("Hydra Feature_Control was %x",
@@ -198,7 +199,7 @@ static void __init setup_peg2(struct pci_controller *hose, struct device_node *d
 		printk ("RTAS supporting Pegasos OF not found, please upgrade"
 			" your firmware\n");
 	}
-	ppc_pci_flags |= PPC_PCI_REASSIGN_ALL_BUS;
+	ppc_pci_add_flags(PPC_PCI_REASSIGN_ALL_BUS);
 	/* keep the reference to the root node */
 }
 
diff --git a/arch/powerpc/platforms/embedded6xx/c2k.c b/arch/powerpc/platforms/embedded6xx/c2k.c
index 32ba0fa0ad0..8cab5731850 100644
--- a/arch/powerpc/platforms/embedded6xx/c2k.c
+++ b/arch/powerpc/platforms/embedded6xx/c2k.c
@@ -20,7 +20,6 @@
 #include <linux/seq_file.h>
 #include <linux/time.h>
 #include <linux/of.h>
-#include <linux/kexec.h>
 
 #include <asm/machdep.h>
 #include <asm/prom.h>
@@ -147,9 +146,4 @@ define_machine(c2k) {
 	.get_irq		= mv64x60_get_irq,
 	.restart		= c2k_restart,
 	.calibrate_decr		= generic_calibrate_decr,
-#ifdef CONFIG_KEXEC
-	.machine_kexec		= default_machine_kexec,
-	.machine_kexec_prepare	= default_machine_kexec_prepare,
-	.machine_crash_shutdown	= default_machine_crash_shutdown,
-#endif
 };
diff --git a/arch/powerpc/platforms/embedded6xx/prpmc2800.c b/arch/powerpc/platforms/embedded6xx/prpmc2800.c
index 4c485e98423..670035f49a6 100644
--- a/arch/powerpc/platforms/embedded6xx/prpmc2800.c
+++ b/arch/powerpc/platforms/embedded6xx/prpmc2800.c
@@ -19,7 +19,6 @@
 #include <asm/prom.h>
 #include <asm/system.h>
 #include <asm/time.h>
-#include <asm/kexec.h>
 
 #include <mm/mmu_decl.h>
 
@@ -155,9 +154,4 @@ define_machine(prpmc2800){
 	.get_irq		= mv64x60_get_irq,
 	.restart		= prpmc2800_restart,
 	.calibrate_decr		= generic_calibrate_decr,
-#ifdef CONFIG_KEXEC
-	.machine_kexec		= default_machine_kexec,
-	.machine_kexec_prepare	= default_machine_kexec_prepare,
-	.machine_crash_shutdown	= default_machine_crash_shutdown,
-#endif
 };
diff --git a/arch/powerpc/platforms/iseries/Kconfig b/arch/powerpc/platforms/iseries/Kconfig
index 45ffd8e542f..ed3753d8c10 100644
--- a/arch/powerpc/platforms/iseries/Kconfig
+++ b/arch/powerpc/platforms/iseries/Kconfig
@@ -9,6 +9,7 @@ menu "iSeries device drivers"
 
 config VIODASD
 	tristate "iSeries Virtual I/O disk support"
+	depends on BLOCK
 	help
 	  If you are running on an iSeries system and you want to use
 	  virtual disks created and managed by OS/400, say Y.
diff --git a/arch/powerpc/platforms/maple/setup.c b/arch/powerpc/platforms/maple/setup.c
index d4c61c3c966..bfd60e4acce 100644
--- a/arch/powerpc/platforms/maple/setup.c
+++ b/arch/powerpc/platforms/maple/setup.c
@@ -50,7 +50,6 @@
 #include <asm/system.h>
 #include <asm/pgtable.h>
 #include <asm/io.h>
-#include <asm/kexec.h>
 #include <asm/pci-bridge.h>
 #include <asm/iommu.h>
 #include <asm/machdep.h>
@@ -335,9 +334,4 @@ define_machine(maple) {
       	.calibrate_decr		= generic_calibrate_decr,
 	.progress		= maple_progress,
 	.power_save		= power4_idle,
-#ifdef CONFIG_KEXEC
-	.machine_kexec		= default_machine_kexec,
-	.machine_kexec_prepare	= default_machine_kexec_prepare,
-	.machine_crash_shutdown	= default_machine_crash_shutdown,
-#endif
 };
diff --git a/arch/powerpc/platforms/powermac/cpufreq_32.c b/arch/powerpc/platforms/powermac/cpufreq_32.c
index 792d3ce8112..65c585b8b00 100644
--- a/arch/powerpc/platforms/powermac/cpufreq_32.c
+++ b/arch/powerpc/platforms/powermac/cpufreq_32.c
@@ -310,7 +310,7 @@ static int pmu_set_cpu_speed(int low_speed)
  		_set_L3CR(save_l3cr);
 
 	/* Restore userland MMU context */
-	set_context(current->active_mm->context.id, current->active_mm->pgd);
+	switch_mmu_context(NULL, current->active_mm);
 
 #ifdef DEBUG_FREQ
 	printk(KERN_DEBUG "HID1, after: %x\n", mfspr(SPRN_HID1));
diff --git a/arch/powerpc/platforms/powermac/pci.c b/arch/powerpc/platforms/powermac/pci.c
index bcf50d7056e..54b7b76ed4f 100644
--- a/arch/powerpc/platforms/powermac/pci.c
+++ b/arch/powerpc/platforms/powermac/pci.c
@@ -729,7 +729,7 @@ static void __init setup_bandit(struct pci_controller *hose,
 static int __init setup_uninorth(struct pci_controller *hose,
 				 struct resource *addr)
 {
-	ppc_pci_flags |= PPC_PCI_REASSIGN_ALL_BUS;
+	ppc_pci_add_flags(PPC_PCI_REASSIGN_ALL_BUS);
 	has_uninorth = 1;
 	hose->ops = &macrisc_pci_ops;
 	hose->cfg_addr = ioremap(addr->start + 0x800000, 0x1000);
@@ -996,7 +996,7 @@ void __init pmac_pci_init(void)
 	struct device_node *np, *root;
 	struct device_node *ht = NULL;
 
-	ppc_pci_flags = PPC_PCI_CAN_SKIP_ISA_ALIGN;
+	ppc_pci_set_flags(PPC_PCI_CAN_SKIP_ISA_ALIGN);
 
 	root = of_find_node_by_path("/");
 	if (root == NULL) {
@@ -1055,7 +1055,7 @@ void __init pmac_pci_init(void)
 	 * some offset between bus number and domains for now when we
 	 * assign all busses should help for now
 	 */
-	if (ppc_pci_flags & PPC_PCI_REASSIGN_ALL_BUS)
+	if (ppc_pci_has_flag(PPC_PCI_REASSIGN_ALL_BUS))
 		pcibios_assign_bus_offset = 0x10;
 #endif
 }
diff --git a/arch/powerpc/platforms/powermac/setup.c b/arch/powerpc/platforms/powermac/setup.c
index 82c14d203d8..9b78f5300c2 100644
--- a/arch/powerpc/platforms/powermac/setup.c
+++ b/arch/powerpc/platforms/powermac/setup.c
@@ -60,7 +60,6 @@
 #include <asm/system.h>
 #include <asm/pgtable.h>
 #include <asm/io.h>
-#include <asm/kexec.h>
 #include <asm/pci-bridge.h>
 #include <asm/ohare.h>
 #include <asm/mediabay.h>
@@ -310,9 +309,7 @@ static void __init pmac_setup_arch(void)
 	}
 
 	/* See if newworld or oldworld */
-	for (ic = NULL; (ic = of_find_all_nodes(ic)) != NULL; )
-		if (of_get_property(ic, "interrupt-controller", NULL))
-			break;
+	ic = of_find_node_with_property(NULL, "interrupt-controller");
 	if (ic) {
 		pmac_newworld = 1;
 		of_node_put(ic);
@@ -740,11 +737,6 @@ define_machine(powermac) {
 	.pci_probe_mode		= pmac_pci_probe_mode,
 	.power_save		= power4_idle,
 	.enable_pmcs		= power4_enable_pmcs,
-#ifdef CONFIG_KEXEC
-	.machine_kexec		= default_machine_kexec,
-	.machine_kexec_prepare	= default_machine_kexec_prepare,
-	.machine_crash_shutdown	= default_machine_crash_shutdown,
-#endif
 #endif /* CONFIG_PPC64 */
 #ifdef CONFIG_PPC32
 	.pcibios_enable_device_hook = pmac_pci_enable_device_hook,
diff --git a/arch/powerpc/platforms/powermac/sleep.S b/arch/powerpc/platforms/powermac/sleep.S
index adee28da353..1c2802fabd5 100644
--- a/arch/powerpc/platforms/powermac/sleep.S
+++ b/arch/powerpc/platforms/powermac/sleep.S
@@ -17,6 +17,7 @@
 #include <asm/cache.h>
 #include <asm/thread_info.h>
 #include <asm/asm-offsets.h>
+#include <asm/mmu.h>
 
 #define MAGIC	0x4c617273	/* 'Lars' */
 
@@ -323,7 +324,7 @@ grackle_wake_up:
 	lwz	r4,SL_IBAT3+4(r1)
 	mtibatl	3,r4
 
-BEGIN_FTR_SECTION
+BEGIN_MMU_FTR_SECTION
 	li	r4,0
 	mtspr	SPRN_DBAT4U,r4
 	mtspr	SPRN_DBAT4L,r4
@@ -341,7 +342,7 @@ BEGIN_FTR_SECTION
 	mtspr	SPRN_IBAT6L,r4
 	mtspr	SPRN_IBAT7U,r4
 	mtspr	SPRN_IBAT7L,r4
-END_FTR_SECTION_IFSET(CPU_FTR_HAS_HIGH_BATS)
+END_MMU_FTR_SECTION_IFSET(MMU_FTR_USE_HIGH_BATS)
 
 	/* Flush all TLBs */
 	lis	r4,0x1000
diff --git a/arch/powerpc/platforms/powermac/smp.c b/arch/powerpc/platforms/powermac/smp.c
index 40f72c2a469..6b0711c15ec 100644
--- a/arch/powerpc/platforms/powermac/smp.c
+++ b/arch/powerpc/platforms/powermac/smp.c
@@ -739,7 +739,7 @@ static void __init smp_core99_setup(int ncpus)
 
 		/* XXX should get this from reg properties */
 		for (i = 1; i < ncpus; ++i)
-			smp_hw_index[i] = i;
+			set_hard_smp_processor_id(i, i);
 	}
 #endif
 
diff --git a/arch/powerpc/platforms/ps3/device-init.c b/arch/powerpc/platforms/ps3/device-init.c
index ffdd8e963fb..dbc124e0564 100644
--- a/arch/powerpc/platforms/ps3/device-init.c
+++ b/arch/powerpc/platforms/ps3/device-init.c
@@ -314,11 +314,17 @@ static int __init ps3_setup_vuart_device(enum ps3_match_id match_id,
 
 	result = ps3_system_bus_device_register(&p->dev);
 
-	if (result)
+	if (result) {
 		pr_debug("%s:%d ps3_system_bus_device_register failed\n",
 			__func__, __LINE__);
-
+		goto fail_device_register;
+	}
 	pr_debug(" <- %s:%d\n", __func__, __LINE__);
+	return 0;
+
+fail_device_register:
+	kfree(p);
+	pr_debug(" <- %s:%d fail\n", __func__, __LINE__);
 	return result;
 }
 
@@ -463,11 +469,17 @@ static int __init ps3_register_sound_devices(void)
 
 	result = ps3_system_bus_device_register(&p->dev);
 
-	if (result)
+	if (result) {
 		pr_debug("%s:%d ps3_system_bus_device_register failed\n",
 			__func__, __LINE__);
-
+		goto fail_device_register;
+	}
 	pr_debug(" <- %s:%d\n", __func__, __LINE__);
+	return 0;
+
+fail_device_register:
+	kfree(p);
+	pr_debug(" <- %s:%d failed\n", __func__, __LINE__);
 	return result;
 }
 
@@ -485,17 +497,24 @@ static int __init ps3_register_graphics_devices(void)
 	if (!p)
 		return -ENOMEM;
 
-	p->dev.match_id = PS3_MATCH_ID_GRAPHICS;
-	p->dev.match_sub_id = PS3_MATCH_SUB_ID_FB;
+	p->dev.match_id = PS3_MATCH_ID_GPU;
+	p->dev.match_sub_id = PS3_MATCH_SUB_ID_GPU_FB;
 	p->dev.dev_type = PS3_DEVICE_TYPE_IOC0;
 
 	result = ps3_system_bus_device_register(&p->dev);
 
-	if (result)
+	if (result) {
 		pr_debug("%s:%d ps3_system_bus_device_register failed\n",
 			__func__, __LINE__);
+		goto fail_device_register;
+	}
 
 	pr_debug(" <- %s:%d\n", __func__, __LINE__);
+	return 0;
+
+fail_device_register:
+	kfree(p);
+	pr_debug(" <- %s:%d failed\n", __func__, __LINE__);
 	return result;
 }
 
diff --git a/arch/powerpc/platforms/ps3/mm.c b/arch/powerpc/platforms/ps3/mm.c
index 3a58ffabccd..a4d49dd9e8a 100644
--- a/arch/powerpc/platforms/ps3/mm.c
+++ b/arch/powerpc/platforms/ps3/mm.c
@@ -649,7 +649,7 @@ static int dma_sb_region_create(struct ps3_dma_region *r)
 {
 	int result;
 
-	pr_info(" -> %s:%d:\n", __func__, __LINE__);
+	DBG(" -> %s:%d:\n", __func__, __LINE__);
 
 	BUG_ON(!r);
 
diff --git a/arch/powerpc/platforms/ps3/setup.c b/arch/powerpc/platforms/ps3/setup.c
index 77bc330263c..35f3e85cf60 100644
--- a/arch/powerpc/platforms/ps3/setup.c
+++ b/arch/powerpc/platforms/ps3/setup.c
@@ -23,7 +23,6 @@
 #include <linux/fs.h>
 #include <linux/root_dev.h>
 #include <linux/console.h>
-#include <linux/kexec.h>
 #include <linux/bootmem.h>
 
 #include <asm/machdep.h>
@@ -42,6 +41,10 @@
 #define DBG pr_debug
 #endif
 
+/* mutex synchronizing GPU accesses and video mode changes */
+DEFINE_MUTEX(ps3_gpu_mutex);
+EXPORT_SYMBOL_GPL(ps3_gpu_mutex);
+
 #if !defined(CONFIG_SMP)
 static void smp_send_stop(void) {}
 #endif
@@ -277,8 +280,5 @@ define_machine(ps3) {
 	.halt				= ps3_halt,
 #if defined(CONFIG_KEXEC)
 	.kexec_cpu_down			= ps3_kexec_cpu_down,
-	.machine_kexec			= default_machine_kexec,
-	.machine_kexec_prepare		= default_machine_kexec_prepare,
-	.machine_crash_shutdown		= default_machine_crash_shutdown,
 #endif
 };
diff --git a/arch/powerpc/platforms/ps3/system-bus.c b/arch/powerpc/platforms/ps3/system-bus.c
index 661e9f77ebf..ee0d2291162 100644
--- a/arch/powerpc/platforms/ps3/system-bus.c
+++ b/arch/powerpc/platforms/ps3/system-bus.c
@@ -31,7 +31,7 @@
 #include "platform.h"
 
 static struct device ps3_system_bus = {
-	.bus_id = "ps3_system",
+	.init_name = "ps3_system",
 };
 
 /* FIXME: need device usage counters! */
@@ -175,7 +175,7 @@ int ps3_open_hv_device(struct ps3_system_bus_device *dev)
 		return ps3_open_hv_device_sb(dev);
 
 	case PS3_MATCH_ID_SOUND:
-	case PS3_MATCH_ID_GRAPHICS:
+	case PS3_MATCH_ID_GPU:
 		return ps3_open_hv_device_gpu(dev);
 
 	case PS3_MATCH_ID_AV_SETTINGS:
@@ -213,7 +213,7 @@ int ps3_close_hv_device(struct ps3_system_bus_device *dev)
 		return ps3_close_hv_device_sb(dev);
 
 	case PS3_MATCH_ID_SOUND:
-	case PS3_MATCH_ID_GRAPHICS:
+	case PS3_MATCH_ID_GPU:
 		return ps3_close_hv_device_gpu(dev);
 
 	case PS3_MATCH_ID_AV_SETTINGS:
@@ -356,12 +356,12 @@ static int ps3_system_bus_match(struct device *_dev,
 	if (result)
 		pr_info("%s:%d: dev=%u.%u(%s), drv=%u.%u(%s): match\n",
 			__func__, __LINE__,
-			dev->match_id, dev->match_sub_id, dev->core.bus_id,
+			dev->match_id, dev->match_sub_id, dev_name(&dev->core),
 			drv->match_id, drv->match_sub_id, drv->core.name);
 	else
 		pr_debug("%s:%d: dev=%u.%u(%s), drv=%u.%u(%s): miss\n",
 			__func__, __LINE__,
-			dev->match_id, dev->match_sub_id, dev->core.bus_id,
+			dev->match_id, dev->match_sub_id, dev_name(&dev->core),
 			drv->match_id, drv->match_sub_id, drv->core.name);
 
 	return result;
@@ -383,9 +383,9 @@ static int ps3_system_bus_probe(struct device *_dev)
 		result = drv->probe(dev);
 	else
 		pr_debug("%s:%d: %s no probe method\n", __func__, __LINE__,
-			dev->core.bus_id);
+			dev_name(&dev->core));
 
-	pr_debug(" <- %s:%d: %s\n", __func__, __LINE__, dev->core.bus_id);
+	pr_debug(" <- %s:%d: %s\n", __func__, __LINE__, dev_name(&dev->core));
 	return result;
 }
 
@@ -407,7 +407,7 @@ static int ps3_system_bus_remove(struct device *_dev)
 		dev_dbg(&dev->core, "%s:%d %s: no remove method\n",
 			__func__, __LINE__, drv->core.name);
 
-	pr_debug(" <- %s:%d: %s\n", __func__, __LINE__, dev->core.bus_id);
+	pr_debug(" <- %s:%d: %s\n", __func__, __LINE__, dev_name(&dev->core));
 	return result;
 }
 
@@ -432,7 +432,7 @@ static void ps3_system_bus_shutdown(struct device *_dev)
 	BUG_ON(!drv);
 
 	dev_dbg(&dev->core, "%s:%d: %s -> %s\n", __func__, __LINE__,
-		dev->core.bus_id, drv->core.name);
+		dev_name(&dev->core), drv->core.name);
 
 	if (drv->shutdown)
 		drv->shutdown(dev);
@@ -453,7 +453,8 @@ static int ps3_system_bus_uevent(struct device *_dev, struct kobj_uevent_env *en
 {
 	struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev);
 
-	if (add_uevent_var(env, "MODALIAS=ps3:%d", dev->match_id))
+	if (add_uevent_var(env, "MODALIAS=ps3:%d:%d", dev->match_id,
+			   dev->match_sub_id))
 		return -ENOMEM;
 	return 0;
 }
@@ -462,7 +463,8 @@ static ssize_t modalias_show(struct device *_dev, struct device_attribute *a,
 	char *buf)
 {
 	struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev);
-	int len = snprintf(buf, PAGE_SIZE, "ps3:%d\n", dev->match_id);
+	int len = snprintf(buf, PAGE_SIZE, "ps3:%d:%d\n", dev->match_id,
+			   dev->match_sub_id);
 
 	return (len >= PAGE_SIZE) ? (PAGE_SIZE - 1) : len;
 }
@@ -742,22 +744,18 @@ int ps3_system_bus_device_register(struct ps3_system_bus_device *dev)
 	switch (dev->dev_type) {
 	case PS3_DEVICE_TYPE_IOC0:
 		dev->core.archdata.dma_ops = &ps3_ioc0_dma_ops;
-		snprintf(dev->core.bus_id, sizeof(dev->core.bus_id),
-			"ioc0_%02x", ++dev_ioc0_count);
+		dev_set_name(&dev->core, "ioc0_%02x", ++dev_ioc0_count);
 		break;
 	case PS3_DEVICE_TYPE_SB:
 		dev->core.archdata.dma_ops = &ps3_sb_dma_ops;
-		snprintf(dev->core.bus_id, sizeof(dev->core.bus_id),
-			"sb_%02x", ++dev_sb_count);
+		dev_set_name(&dev->core, "sb_%02x", ++dev_sb_count);
 
 		break;
 	case PS3_DEVICE_TYPE_VUART:
-		snprintf(dev->core.bus_id, sizeof(dev->core.bus_id),
-			"vuart_%02x", ++dev_vuart_count);
+		dev_set_name(&dev->core, "vuart_%02x", ++dev_vuart_count);
 		break;
 	case PS3_DEVICE_TYPE_LPM:
-		snprintf(dev->core.bus_id, sizeof(dev->core.bus_id),
-			"lpm_%02x", ++dev_lpm_count);
+		dev_set_name(&dev->core, "lpm_%02x", ++dev_lpm_count);
 		break;
 	default:
 		BUG();
@@ -766,7 +764,7 @@ int ps3_system_bus_device_register(struct ps3_system_bus_device *dev)
 	dev->core.archdata.of_node = NULL;
 	set_dev_node(&dev->core, 0);
 
-	pr_debug("%s:%d add %s\n", __func__, __LINE__, dev->core.bus_id);
+	pr_debug("%s:%d add %s\n", __func__, __LINE__, dev_name(&dev->core));
 
 	result = device_register(&dev->core);
 	return result;
diff --git a/arch/powerpc/platforms/pseries/Kconfig b/arch/powerpc/platforms/pseries/Kconfig
index 97619fd51e3..ddc2a307cd5 100644
--- a/arch/powerpc/platforms/pseries/Kconfig
+++ b/arch/powerpc/platforms/pseries/Kconfig
@@ -54,7 +54,7 @@ config PPC_SMLPAR
 
 config CMM
 	tristate "Collaborative memory management"
-	depends on PPC_SMLPAR
+	depends on PPC_SMLPAR && !CRASH_DUMP
 	default y
 	help
 	  Select this option, if you want to enable the kernel interface
diff --git a/arch/powerpc/platforms/pseries/cmm.c b/arch/powerpc/platforms/pseries/cmm.c
index 5cd4d276162..6567439fe78 100644
--- a/arch/powerpc/platforms/pseries/cmm.c
+++ b/arch/powerpc/platforms/pseries/cmm.c
@@ -28,6 +28,7 @@
 #include <linux/kthread.h>
 #include <linux/module.h>
 #include <linux/oom.h>
+#include <linux/reboot.h>
 #include <linux/sched.h>
 #include <linux/stringify.h>
 #include <linux/swap.h>
@@ -384,6 +385,26 @@ static void cmm_unregister_sysfs(struct sys_device *sysdev)
 }
 
 /**
+ * cmm_reboot_notifier - Make sure pages are not still marked as "loaned"
+ *
+ **/
+static int cmm_reboot_notifier(struct notifier_block *nb,
+			       unsigned long action, void *unused)
+{
+	if (action == SYS_RESTART) {
+		if (cmm_thread_ptr)
+			kthread_stop(cmm_thread_ptr);
+		cmm_thread_ptr = NULL;
+		cmm_free_pages(loaned_pages);
+	}
+	return NOTIFY_DONE;
+}
+
+static struct notifier_block cmm_reboot_nb = {
+	.notifier_call = cmm_reboot_notifier,
+};
+
+/**
  * cmm_init - Module initialization
  *
  * Return value:
@@ -399,9 +420,12 @@ static int cmm_init(void)
 	if ((rc = register_oom_notifier(&cmm_oom_nb)) < 0)
 		return rc;
 
-	if ((rc = cmm_sysfs_register(&cmm_sysdev)))
+	if ((rc = register_reboot_notifier(&cmm_reboot_nb)))
 		goto out_oom_notifier;
 
+	if ((rc = cmm_sysfs_register(&cmm_sysdev)))
+		goto out_reboot_notifier;
+
 	if (cmm_disabled)
 		return rc;
 
@@ -415,6 +439,8 @@ static int cmm_init(void)
 
 out_unregister_sysfs:
 	cmm_unregister_sysfs(&cmm_sysdev);
+out_reboot_notifier:
+	unregister_reboot_notifier(&cmm_reboot_nb);
 out_oom_notifier:
 	unregister_oom_notifier(&cmm_oom_nb);
 	return rc;
@@ -431,6 +457,7 @@ static void cmm_exit(void)
 	if (cmm_thread_ptr)
 		kthread_stop(cmm_thread_ptr);
 	unregister_oom_notifier(&cmm_oom_nb);
+	unregister_reboot_notifier(&cmm_reboot_nb);
 	cmm_free_pages(loaned_pages);
 	cmm_unregister_sysfs(&cmm_sysdev);
 }
diff --git a/arch/powerpc/platforms/pseries/eeh.c b/arch/powerpc/platforms/pseries/eeh.c
index 54816d75b57..989d6462c15 100644
--- a/arch/powerpc/platforms/pseries/eeh.c
+++ b/arch/powerpc/platforms/pseries/eeh.c
@@ -21,6 +21,8 @@
  * Please address comments and feedback to Linas Vepstas <linas@austin.ibm.com>
  */
 
+#undef DEBUG
+
 #include <linux/delay.h>
 #include <linux/init.h>
 #include <linux/list.h>
@@ -488,10 +490,8 @@ int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev)
 	if (!(pdn->eeh_mode & EEH_MODE_SUPPORTED) ||
 	    pdn->eeh_mode & EEH_MODE_NOCHECK) {
 		ignored_check++;
-#ifdef DEBUG
-		printk ("EEH:ignored check (%x) for %s %s\n", 
-		        pdn->eeh_mode, pci_name (dev), dn->full_name);
-#endif
+		pr_debug("EEH: Ignored check (%x) for %s %s\n",
+			 pdn->eeh_mode, pci_name (dev), dn->full_name);
 		return 0;
 	}
 
@@ -1014,10 +1014,9 @@ static void *early_enable_eeh(struct device_node *dn, void *data)
 			eeh_subsystem_enabled = 1;
 			pdn->eeh_mode |= EEH_MODE_SUPPORTED;
 
-#ifdef DEBUG
-			printk(KERN_DEBUG "EEH: %s: eeh enabled, config=%x pe_config=%x\n",
-			       dn->full_name, pdn->eeh_config_addr, pdn->eeh_pe_config_addr);
-#endif
+			pr_debug("EEH: %s: eeh enabled, config=%x pe_config=%x\n",
+				 dn->full_name, pdn->eeh_config_addr,
+				 pdn->eeh_pe_config_addr);
 		} else {
 
 			/* This device doesn't support EEH, but it may have an
@@ -1161,13 +1160,17 @@ static void eeh_add_device_late(struct pci_dev *dev)
 	if (!dev || !eeh_subsystem_enabled)
 		return;
 
-#ifdef DEBUG
-	printk(KERN_DEBUG "EEH: adding device %s\n", pci_name(dev));
-#endif
+	pr_debug("EEH: Adding device %s\n", pci_name(dev));
 
-	pci_dev_get (dev);
 	dn = pci_device_to_OF_node(dev);
 	pdn = PCI_DN(dn);
+	if (pdn->pcidev == dev) {
+		pr_debug("EEH: Already referenced !\n");
+		return;
+	}
+	WARN_ON(pdn->pcidev);
+
+	pci_dev_get (dev);
 	pdn->pcidev = dev;
 
 	pci_addr_cache_insert_device(dev);
@@ -1206,17 +1209,18 @@ static void eeh_remove_device(struct pci_dev *dev)
 		return;
 
 	/* Unregister the device with the EEH/PCI address search system */
-#ifdef DEBUG
-	printk(KERN_DEBUG "EEH: remove device %s\n", pci_name(dev));
-#endif
-	pci_addr_cache_remove_device(dev);
-	eeh_sysfs_remove_device(dev);
+	pr_debug("EEH: Removing device %s\n", pci_name(dev));
 
 	dn = pci_device_to_OF_node(dev);
-	if (PCI_DN(dn)->pcidev) {
-		PCI_DN(dn)->pcidev = NULL;
-		pci_dev_put (dev);
+	if (PCI_DN(dn)->pcidev == NULL) {
+		pr_debug("EEH: Not referenced !\n");
+		return;
 	}
+	PCI_DN(dn)->pcidev = NULL;
+	pci_dev_put (dev);
+
+	pci_addr_cache_remove_device(dev);
+	eeh_sysfs_remove_device(dev);
 }
 
 void eeh_remove_bus_device(struct pci_dev *dev)
diff --git a/arch/powerpc/platforms/pseries/hotplug-cpu.c b/arch/powerpc/platforms/pseries/hotplug-cpu.c
index 1f032483c02..a20ead87153 100644
--- a/arch/powerpc/platforms/pseries/hotplug-cpu.c
+++ b/arch/powerpc/platforms/pseries/hotplug-cpu.c
@@ -116,7 +116,7 @@ static void pseries_cpu_die(unsigned int cpu)
 		cpu_status = query_cpu_stopped(pcpu);
 		if (cpu_status == 0 || cpu_status == -1)
 			break;
-		msleep(200);
+		cpu_relax();
 	}
 	if (cpu_status != 0) {
 		printk("Querying DEAD? cpu %i (%i) shows %i\n",
diff --git a/arch/powerpc/platforms/pseries/pci_dlpar.c b/arch/powerpc/platforms/pseries/pci_dlpar.c
index 7190493e9bd..5e1ed3d60ee 100644
--- a/arch/powerpc/platforms/pseries/pci_dlpar.c
+++ b/arch/powerpc/platforms/pseries/pci_dlpar.c
@@ -25,6 +25,8 @@
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+#undef DEBUG
+
 #include <linux/pci.h>
 #include <asm/pci-bridge.h>
 #include <asm/ppc-pci.h>
@@ -69,74 +71,25 @@ EXPORT_SYMBOL_GPL(pcibios_find_pci_bus);
  * Remove all of the PCI devices under this bus both from the
  * linux pci device tree, and from the powerpc EEH address cache.
  */
-void
-pcibios_remove_pci_devices(struct pci_bus *bus)
+void pcibios_remove_pci_devices(struct pci_bus *bus)
 {
-	struct pci_dev *dev, *tmp;
+ 	struct pci_dev *dev, *tmp;
+	struct pci_bus *child_bus;
+
+	/* First go down child busses */
+	list_for_each_entry(child_bus, &bus->children, node)
+		pcibios_remove_pci_devices(child_bus);
 
+	pr_debug("PCI: Removing devices on bus %04x:%02x\n",
+		 pci_domain_nr(bus),  bus->number);
 	list_for_each_entry_safe(dev, tmp, &bus->devices, bus_list) {
+		pr_debug("     * Removing %s...\n", pci_name(dev));
 		eeh_remove_bus_device(dev);
-		pci_remove_bus_device(dev);
-	}
+ 		pci_remove_bus_device(dev);
+ 	}
 }
 EXPORT_SYMBOL_GPL(pcibios_remove_pci_devices);
 
-/* Must be called before pci_bus_add_devices */
-void
-pcibios_fixup_new_pci_devices(struct pci_bus *bus)
-{
-	struct pci_dev *dev;
-
-	list_for_each_entry(dev, &bus->devices, bus_list) {
-		/* Skip already-added devices */
-		if (!dev->is_added) {
-			int i;
-
-			/* Fill device archdata and setup iommu table */
-			pcibios_setup_new_device(dev);
-
-			pci_read_irq_line(dev);
-			for (i = 0; i < PCI_NUM_RESOURCES; i++) {
-				struct resource *r = &dev->resource[i];
-
-				if (r->parent || !r->start || !r->flags)
-					continue;
-				pci_claim_resource(dev, i);
-			}
-		}
-	}
-}
-EXPORT_SYMBOL_GPL(pcibios_fixup_new_pci_devices);
-
-static int
-pcibios_pci_config_bridge(struct pci_dev *dev)
-{
-	u8 sec_busno;
-	struct pci_bus *child_bus;
-
-	/* Get busno of downstream bus */
-	pci_read_config_byte(dev, PCI_SECONDARY_BUS, &sec_busno);
-
-	/* Add to children of PCI bridge dev->bus */
-	child_bus = pci_add_new_bus(dev->bus, dev, sec_busno);
-	if (!child_bus) {
-		printk (KERN_ERR "%s: could not add second bus\n", __func__);
-		return -EIO;
-	}
-	sprintf(child_bus->name, "PCI Bus #%02x", child_bus->number);
-
-	pci_scan_child_bus(child_bus);
-
-	/* Fixup new pci devices */
-	pcibios_fixup_new_pci_devices(child_bus);
-
-	/* Make the discovered devices available */
-	pci_bus_add_devices(child_bus);
-
-	eeh_add_device_tree_late(child_bus);
-	return 0;
-}
-
 /**
  * pcibios_add_pci_devices - adds new pci devices to bus
  *
@@ -147,10 +100,9 @@ pcibios_pci_config_bridge(struct pci_dev *dev)
  * is how this routine differs from other, similar pcibios
  * routines.)
  */
-void
-pcibios_add_pci_devices(struct pci_bus * bus)
+void pcibios_add_pci_devices(struct pci_bus * bus)
 {
-	int slotno, num, mode;
+	int slotno, num, mode, pass, max;
 	struct pci_dev *dev;
 	struct device_node *dn = pci_bus_to_OF_node(bus);
 
@@ -162,26 +114,23 @@ pcibios_add_pci_devices(struct pci_bus * bus)
 
 	if (mode == PCI_PROBE_DEVTREE) {
 		/* use ofdt-based probe */
-		of_scan_bus(dn, bus);
-		if (!list_empty(&bus->devices)) {
-			pcibios_fixup_new_pci_devices(bus);
-			pci_bus_add_devices(bus);
-			eeh_add_device_tree_late(bus);
-		}
+		of_rescan_bus(dn, bus);
 	} else if (mode == PCI_PROBE_NORMAL) {
 		/* use legacy probe */
 		slotno = PCI_SLOT(PCI_DN(dn->child)->devfn);
 		num = pci_scan_slot(bus, PCI_DEVFN(slotno, 0));
-		if (num) {
-			pcibios_fixup_new_pci_devices(bus);
-			pci_bus_add_devices(bus);
-			eeh_add_device_tree_late(bus);
+		if (!num)
+			return;
+		pcibios_setup_bus_devices(bus);
+		max = bus->secondary;
+		for (pass=0; pass < 2; pass++)
+			list_for_each_entry(dev, &bus->devices, bus_list) {
+			if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE ||
+			    dev->hdr_type == PCI_HEADER_TYPE_CARDBUS)
+				max = pci_scan_bridge(bus, dev, max, pass);
 		}
-
-		list_for_each_entry(dev, &bus->devices, bus_list)
-			if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE)
-				pcibios_pci_config_bridge(dev);
 	}
+	pcibios_finish_adding_to_bus(bus);
 }
 EXPORT_SYMBOL_GPL(pcibios_add_pci_devices);
 
@@ -190,6 +139,8 @@ struct pci_controller * __devinit init_phb_dynamic(struct device_node *dn)
 	struct pci_controller *phb;
 	int primary;
 
+	pr_debug("PCI: Initializing new hotplug PHB %s\n", dn->full_name);
+
 	primary = list_empty(&hose_list);
 	phb = pcibios_alloc_controller(dn);
 	if (!phb)
@@ -203,11 +154,59 @@ struct pci_controller * __devinit init_phb_dynamic(struct device_node *dn)
 		eeh_add_device_tree_early(dn);
 
 	scan_phb(phb);
-	pcibios_allocate_bus_resources(phb->bus);
-	pcibios_fixup_new_pci_devices(phb->bus);
-	pci_bus_add_devices(phb->bus);
-	eeh_add_device_tree_late(phb->bus);
+	pcibios_finish_adding_to_bus(phb->bus);
 
 	return phb;
 }
 EXPORT_SYMBOL_GPL(init_phb_dynamic);
+
+/* RPA-specific bits for removing PHBs */
+int remove_phb_dynamic(struct pci_controller *phb)
+{
+	struct pci_bus *b = phb->bus;
+	struct resource *res;
+	int rc, i;
+
+	pr_debug("PCI: Removing PHB %04x:%02x... \n",
+		 pci_domain_nr(b), b->number);
+
+	/* We cannot to remove a root bus that has children */
+	if (!(list_empty(&b->children) && list_empty(&b->devices)))
+		return -EBUSY;
+
+	/* We -know- there aren't any child devices anymore at this stage
+	 * and thus, we can safely unmap the IO space as it's not in use
+	 */
+	res = &phb->io_resource;
+	if (res->flags & IORESOURCE_IO) {
+		rc = pcibios_unmap_io_space(b);
+		if (rc) {
+			printk(KERN_ERR "%s: failed to unmap IO on bus %s\n",
+			       __func__, b->name);
+			return 1;
+		}
+	}
+
+	/* Unregister the bridge device from sysfs and remove the PCI bus */
+	device_unregister(b->bridge);
+	phb->bus = NULL;
+	pci_remove_bus(b);
+
+	/* Now release the IO resource */
+	if (res->flags & IORESOURCE_IO)
+		release_resource(res);
+
+	/* Release memory resources */
+	for (i = 0; i < 3; ++i) {
+		res = &phb->mem_resources[i];
+		if (!(res->flags & IORESOURCE_MEM))
+			continue;
+		release_resource(res);
+	}
+
+	/* Free pci_controller data structure */
+	pcibios_free_controller(phb);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(remove_phb_dynamic);
diff --git a/arch/powerpc/platforms/pseries/phyp_dump.c b/arch/powerpc/platforms/pseries/phyp_dump.c
index edbc012c2eb..6cf35cd8d0b 100644
--- a/arch/powerpc/platforms/pseries/phyp_dump.c
+++ b/arch/powerpc/platforms/pseries/phyp_dump.c
@@ -130,6 +130,9 @@ static unsigned long init_dump_header(struct phyp_dump_header *ph)
 static void print_dump_header(const struct phyp_dump_header *ph)
 {
 #ifdef DEBUG
+	if (ph == NULL)
+		return;
+
 	printk(KERN_INFO "dump header:\n");
 	/* setup some ph->sections required */
 	printk(KERN_INFO "version = %d\n", ph->version);
@@ -411,6 +414,8 @@ static int __init phyp_dump_setup(void)
 		of_node_put(rtas);
 	}
 
+	ibm_configure_kernel_dump = rtas_token("ibm,configure-kernel-dump");
+
 	print_dump_header(dump_header);
 	dump_area_length = init_dump_header(&phdr);
 	/* align down */
diff --git a/arch/powerpc/platforms/pseries/xics.c b/arch/powerpc/platforms/pseries/xics.c
index 424b335a71c..84e058f1e1c 100644
--- a/arch/powerpc/platforms/pseries/xics.c
+++ b/arch/powerpc/platforms/pseries/xics.c
@@ -579,7 +579,7 @@ static void xics_update_irq_servers(void)
 	int i, j;
 	struct device_node *np;
 	u32 ilen;
-	const u32 *ireg, *isize;
+	const u32 *ireg;
 	u32 hcpuid;
 
 	/* Find the server numbers for the boot cpu. */
@@ -607,11 +607,6 @@ static void xics_update_irq_servers(void)
 		}
 	}
 
-	/* get the bit size of server numbers */
-	isize = of_get_property(np, "ibm,interrupt-server#-size", NULL);
-	if (isize)
-		interrupt_server_size = *isize;
-
 	of_node_put(np);
 }
 
@@ -682,6 +677,7 @@ void __init xics_init_IRQ(void)
 	struct device_node *np;
 	u32 indx = 0;
 	int found = 0;
+	const u32 *isize;
 
 	ppc64_boot_msg(0x20, "XICS Init");
 
@@ -701,6 +697,26 @@ void __init xics_init_IRQ(void)
 	if (found == 0)
 		return;
 
+	/* get the bit size of server numbers */
+	found = 0;
+
+	for_each_compatible_node(np, NULL, "ibm,ppc-xics") {
+		isize = of_get_property(np, "ibm,interrupt-server#-size", NULL);
+
+		if (!isize)
+			continue;
+
+		if (!found) {
+			interrupt_server_size = *isize;
+			found = 1;
+		} else if (*isize != interrupt_server_size) {
+			printk(KERN_WARNING "XICS: "
+			       "mismatched ibm,interrupt-server#-size\n");
+			interrupt_server_size = max(*isize,
+						    interrupt_server_size);
+		}
+	}
+
 	xics_update_irq_servers();
 	xics_init_host();
 
@@ -728,9 +744,18 @@ static void xics_set_cpu_priority(unsigned char cppr)
 /* Have the calling processor join or leave the specified global queue */
 static void xics_set_cpu_giq(unsigned int gserver, unsigned int join)
 {
-	int status = rtas_set_indicator_fast(GLOBAL_INTERRUPT_QUEUE,
-		(1UL << interrupt_server_size) - 1 - gserver, join);
-	WARN_ON(status < 0);
+	int index;
+	int status;
+
+	if (!rtas_indicator_present(GLOBAL_INTERRUPT_QUEUE, NULL))
+		return;
+
+	index = (1UL << interrupt_server_size) - 1 - gserver;
+
+	status = rtas_set_indicator_fast(GLOBAL_INTERRUPT_QUEUE, index, join);
+
+	WARN(status < 0, "set-indicator(%d, %d, %u) returned %d\n",
+	     GLOBAL_INTERRUPT_QUEUE, index, join, status);
 }
 
 void xics_setup_cpu(void)