17 files changed, 343 insertions, 92 deletions

diff --git a/arch/powerpc/platforms/44x/Kconfig b/arch/powerpc/platforms/44x/Kconfig
index 2e4e64abfab..8abf6fb8f41 100644
--- a/arch/powerpc/platforms/44x/Kconfig
+++ b/arch/powerpc/platforms/44x/Kconfig
@@ -23,6 +23,8 @@ config BLUESTONE
 	default n
 	select PPC44x_SIMPLE
 	select APM821xx
+	select PCI_MSI
+	select PPC4xx_MSI
 	select PPC4xx_PCI_EXPRESS
 	select IBM_EMAC_RGMII
 	help
diff --git a/arch/powerpc/platforms/85xx/common.c b/arch/powerpc/platforms/85xx/common.c
index 9fef5302adc..67dac22b436 100644
--- a/arch/powerpc/platforms/85xx/common.c
+++ b/arch/powerpc/platforms/85xx/common.c
@@ -21,6 +21,12 @@ static struct of_device_id __initdata mpc85xx_common_ids[] = {
 	{ .compatible = "fsl,qe", },
 	{ .compatible = "fsl,cpm2", },
 	{ .compatible = "fsl,srio", },
+	/* So that the DMA channel nodes can be probed individually: */
+	{ .compatible = "fsl,eloplus-dma", },
+	/* For the PMC driver */
+	{ .compatible = "fsl,mpc8548-guts", },
+	/* Probably unnecessary? */
+	{ .compatible = "gpio-leds", },
 	{},
 };
 
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_mds.c b/arch/powerpc/platforms/85xx/mpc85xx_mds.c
index 9a6f04406e0..d208ebccb91 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_mds.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_mds.c
@@ -399,12 +399,6 @@ static int __init board_fixups(void)
 machine_arch_initcall(mpc8568_mds, board_fixups);
 machine_arch_initcall(mpc8569_mds, board_fixups);
 
-static struct of_device_id mpc85xx_ids[] = {
-	{ .compatible = "fsl,mpc8548-guts", },
-	{ .compatible = "gpio-leds", },
-	{},
-};
-
 static int __init mpc85xx_publish_devices(void)
 {
 	if (machine_is(mpc8568_mds))
@@ -412,10 +406,7 @@ static int __init mpc85xx_publish_devices(void)
 	if (machine_is(mpc8569_mds))
 		simple_gpiochip_init("fsl,mpc8569mds-bcsr-gpio");
 
-	mpc85xx_common_publish_devices();
-	of_platform_bus_probe(NULL, mpc85xx_ids, NULL);
-
-	return 0;
+	return mpc85xx_common_publish_devices();
 }
 
 machine_device_initcall(mpc8568_mds, mpc85xx_publish_devices);
diff --git a/arch/powerpc/platforms/85xx/p1022_ds.c b/arch/powerpc/platforms/85xx/p1022_ds.c
index e74b7cde9ae..f700c81a132 100644
--- a/arch/powerpc/platforms/85xx/p1022_ds.c
+++ b/arch/powerpc/platforms/85xx/p1022_ds.c
@@ -460,18 +460,7 @@ static void __init p1022_ds_setup_arch(void)
 	pr_info("Freescale P1022 DS reference board\n");
 }
 
-static struct of_device_id __initdata p1022_ds_ids[] = {
-	/* So that the DMA channel nodes can be probed individually: */
-	{ .compatible = "fsl,eloplus-dma", },
-	{},
-};
-
-static int __init p1022_ds_publish_devices(void)
-{
-	mpc85xx_common_publish_devices();
-	return of_platform_bus_probe(NULL, p1022_ds_ids, NULL);
-}
-machine_device_initcall(p1022_ds, p1022_ds_publish_devices);
+machine_device_initcall(p1022_ds, mpc85xx_common_publish_devices);
 
 machine_arch_initcall(p1022_ds, swiotlb_setup_bus_notifier);
 
diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype
index 425db18580a..61c9550819a 100644
--- a/arch/powerpc/platforms/Kconfig.cputype
+++ b/arch/powerpc/platforms/Kconfig.cputype
@@ -78,6 +78,36 @@ config PPC_BOOK3E_64
 
 endchoice
 
+choice
+	prompt "CPU selection"
+	depends on PPC64
+	default GENERIC_CPU
+	help
+	  This will create a kernel which is optimised for a particular CPU.
+	  The resulting kernel may not run on other CPUs, so use this with care.
+
+	  If unsure, select Generic.
+
+config GENERIC_CPU
+	bool "Generic"
+
+config CELL_CPU
+	bool "Cell Broadband Engine"
+
+config POWER4_CPU
+	bool "POWER4"
+
+config POWER5_CPU
+	bool "POWER5"
+
+config POWER6_CPU
+	bool "POWER6"
+
+config POWER7_CPU
+	bool "POWER7"
+
+endchoice
+
 config PPC_BOOK3S
 	def_bool y
 	depends on PPC_BOOK3S_32 || PPC_BOOK3S_64
@@ -86,15 +116,6 @@ config PPC_BOOK3E
 	def_bool y
 	depends on PPC_BOOK3E_64
 
-config POWER4_ONLY
-	bool "Optimize for POWER4"
-	depends on PPC64 && PPC_BOOK3S
-	default n
-	---help---
-	  Cause the compiler to optimize for POWER4/POWER5/PPC970 processors.
-	  The resulting binary will not work on POWER3 or RS64 processors
-	  when compiled with binutils 2.15 or later.
-
 config 6xx
 	def_bool y
 	depends on PPC32 && PPC_BOOK3S
@@ -258,7 +279,7 @@ config PPC_ICSWX_PID
 	default y
 	---help---
 	  The PID register in server is used explicitly for ICSWX.  In
-	  embedded systems PID managment is done by the system.
+	  embedded systems PID management is done by the system.
 
 config PPC_ICSWX_USE_SIGILL
 	bool "Should a bad CT cause a SIGILL?"
@@ -266,7 +287,7 @@ config PPC_ICSWX_USE_SIGILL
 	default n
 	---help---
 	  Should a bad CT used for "non-record form ICSWX" cause an
-	  illegal intruction signal or should it be silent as
+	  illegal instruction signal or should it be silent as
 	  architected.
 
 	  If in doubt, say N here.
diff --git a/arch/powerpc/platforms/cell/axon_msi.c b/arch/powerpc/platforms/cell/axon_msi.c
index d09f3e8e686..85825b5401e 100644
--- a/arch/powerpc/platforms/cell/axon_msi.c
+++ b/arch/powerpc/platforms/cell/axon_msi.c
@@ -114,7 +114,7 @@ static void axon_msi_cascade(unsigned int irq, struct irq_desc *desc)
 		pr_devel("axon_msi: woff %x roff %x msi %x\n",
 			  write_offset, msic->read_offset, msi);
 
-		if (msi < NR_IRQS && irq_get_chip_data(msi) == msic) {
+		if (msi < nr_irqs && irq_get_chip_data(msi) == msic) {
 			generic_handle_irq(msi);
 			msic->fifo_virt[idx] = cpu_to_le32(0xffffffff);
 		} else {
@@ -276,9 +276,6 @@ static int axon_msi_setup_msi_irqs(struct pci_dev *dev, int nvec, int type)
 	if (rc)
 		return rc;
 
-	/* We rely on being able to stash a virq in a u16 */
-	BUILD_BUG_ON(NR_IRQS > 65536);
-
 	list_for_each_entry(entry, &dev->msi_list, list) {
 		virq = irq_create_direct_mapping(msic->irq_domain);
 		if (virq == NO_IRQ) {
@@ -392,7 +389,8 @@ static int axon_msi_probe(struct platform_device *device)
 	}
 	memset(msic->fifo_virt, 0xff, MSIC_FIFO_SIZE_BYTES);
 
-	msic->irq_domain = irq_domain_add_nomap(dn, 0, &msic_host_ops, msic);
+	/* We rely on being able to stash a virq in a u16, so limit irqs to < 65536 */
+	msic->irq_domain = irq_domain_add_nomap(dn, 65536, &msic_host_ops, msic);
 	if (!msic->irq_domain) {
 		printk(KERN_ERR "axon_msi: couldn't allocate irq_domain for %s\n",
 		       dn->full_name);
diff --git a/arch/powerpc/platforms/cell/beat_interrupt.c b/arch/powerpc/platforms/cell/beat_interrupt.c
index f9a48af335c..8c6dc42ecf6 100644
--- a/arch/powerpc/platforms/cell/beat_interrupt.c
+++ b/arch/powerpc/platforms/cell/beat_interrupt.c
@@ -248,6 +248,6 @@ void beatic_deinit_IRQ(void)
 {
 	int	i;
 
-	for (i = 1; i < NR_IRQS; i++)
+	for (i = 1; i < nr_irqs; i++)
 		beat_destruct_irq_plug(i);
 }
diff --git a/arch/powerpc/platforms/powermac/low_i2c.c b/arch/powerpc/platforms/powermac/low_i2c.c
index 996c5ff7824..fc536f2971c 100644
--- a/arch/powerpc/platforms/powermac/low_i2c.c
+++ b/arch/powerpc/platforms/powermac/low_i2c.c
@@ -366,11 +366,20 @@ static void kw_i2c_timeout(unsigned long data)
 	unsigned long flags;
 
 	spin_lock_irqsave(&host->lock, flags);
+
+	/*
+	 * If the timer is pending, that means we raced with the
+	 * irq, in which case we just return
+	 */
+	if (timer_pending(&host->timeout_timer))
+		goto skip;
+
 	kw_i2c_handle_interrupt(host, kw_read_reg(reg_isr));
 	if (host->state != state_idle) {
 		host->timeout_timer.expires = jiffies + KW_POLL_TIMEOUT;
 		add_timer(&host->timeout_timer);
 	}
+ skip:
 	spin_unlock_irqrestore(&host->lock, flags);
 }
 
@@ -1494,6 +1503,7 @@ static int __init pmac_i2c_create_platform_devices(void)
 		if (bus->platform_dev == NULL)
 			return -ENOMEM;
 		bus->platform_dev->dev.platform_data = bus;
+		bus->platform_dev->dev.of_node = bus->busnode;
 		platform_device_add(bus->platform_dev);
 	}
 
diff --git a/arch/powerpc/platforms/powermac/pic.c b/arch/powerpc/platforms/powermac/pic.c
index 66ad93de1d5..c4e630576ff 100644
--- a/arch/powerpc/platforms/powermac/pic.c
+++ b/arch/powerpc/platforms/powermac/pic.c
@@ -57,9 +57,9 @@ static int max_real_irqs;
 
 static DEFINE_RAW_SPINLOCK(pmac_pic_lock);
 
-#define NR_MASK_WORDS	((NR_IRQS + 31) / 32)
-static unsigned long ppc_lost_interrupts[NR_MASK_WORDS];
-static unsigned long ppc_cached_irq_mask[NR_MASK_WORDS];
+/* The max irq number this driver deals with is 128; see max_irqs */
+static DECLARE_BITMAP(ppc_lost_interrupts, 128);
+static DECLARE_BITMAP(ppc_cached_irq_mask, 128);
 static int pmac_irq_cascade = -1;
 static struct irq_domain *pmac_pic_host;
 
diff --git a/arch/powerpc/platforms/ps3/Kconfig b/arch/powerpc/platforms/ps3/Kconfig
index 476d9d9b240..46b7f023252 100644
--- a/arch/powerpc/platforms/ps3/Kconfig
+++ b/arch/powerpc/platforms/ps3/Kconfig
@@ -7,7 +7,6 @@ config PPC_PS3
 	select USB_OHCI_BIG_ENDIAN_MMIO
 	select USB_ARCH_HAS_EHCI
 	select USB_EHCI_BIG_ENDIAN_MMIO
-	select MEMORY_HOTPLUG
 	select PPC_PCI_CHOICE
 	help
 	  This option enables support for the Sony PS3 game console
@@ -74,7 +73,7 @@ config PS3_PS3AV
 	help
 	  Include support for the PS3 AV Settings driver.
 
-	  This support is required for graphics and sound. In
+	  This support is required for PS3 graphics and sound. In
 	  general, all users will say Y or M.
 
 config PS3_SYS_MANAGER
@@ -85,9 +84,22 @@ config PS3_SYS_MANAGER
 	help
 	  Include support for the PS3 System Manager.
 
-	  This support is required for system control.  In
+	  This support is required for PS3 system control.  In
 	  general, all users will say Y or M.
 
+config PS3_REPOSITORY_WRITE
+	bool "PS3 Repository write support" if PS3_ADVANCED
+	depends on PPC_PS3
+	default n
+	help
+	  Enables support for writing to the PS3 System Repository.
+
+	  This support is intended for bootloaders that need to store data
+	  in the repository for later boot stages.
+
+	  If in doubt, say N here and reduce the size of the kernel by a
+	  small amount.
+
 config PS3_STORAGE
 	depends on PPC_PS3
 	tristate
@@ -122,7 +134,7 @@ config PS3_FLASH
 
 	  This support is required to access the PS3 FLASH ROM, which
 	  contains the boot loader and some boot options.
-	  In general, all users will say Y or M.
+	  In general, PS3 OtherOS users will say Y or M.
 
 	  As this driver needs a fixed buffer of 256 KiB of memory, it can
 	  be disabled on the kernel command line using "ps3flash=off", to
@@ -156,7 +168,7 @@ config PS3GELIC_UDBG
 	  via the Ethernet port (UDP port number 18194).
 
 	  This driver uses a trivial implementation and is independent
-	  from the main network driver.
+	  from the main PS3 gelic network driver.
 
 	  If in doubt, say N here.
 
diff --git a/arch/powerpc/platforms/ps3/mm.c b/arch/powerpc/platforms/ps3/mm.c
index de2aea42170..0c9f643d9e2 100644
--- a/arch/powerpc/platforms/ps3/mm.c
+++ b/arch/powerpc/platforms/ps3/mm.c
@@ -20,7 +20,6 @@
 
 #include <linux/kernel.h>
 #include <linux/export.h>
-#include <linux/memory_hotplug.h>
 #include <linux/memblock.h>
 #include <linux/slab.h>
 
@@ -79,12 +78,14 @@ enum {
  * @base: base address
  * @size: size in bytes
  * @offset: difference between base and rm.size
+ * @destroy: flag if region should be destroyed upon shutdown
  */
 
 struct mem_region {
 	u64 base;
 	u64 size;
 	unsigned long offset;
+	int destroy;
 };
 
 /**
@@ -96,7 +97,7 @@ struct mem_region {
  * The HV virtual address space (vas) allows for hotplug memory regions.
  * Memory regions can be created and destroyed in the vas at runtime.
  * @rm: real mode (bootmem) region
- * @r1: hotplug memory region(s)
+ * @r1: highmem region(s)
  *
  * ps3 addresses
  * virt_addr: a cpu 'translated' effective address
@@ -222,10 +223,6 @@ void ps3_mm_vas_destroy(void)
 	}
 }
 
-/*============================================================================*/
-/* memory hotplug routines                                                    */
-/*============================================================================*/
-
 /**
  * ps3_mm_region_create - create a memory region in the vas
  * @r: pointer to a struct mem_region to accept initialized values
@@ -262,6 +259,7 @@ static int ps3_mm_region_create(struct mem_region *r, unsigned long size)
 		goto zero_region;
 	}
 
+	r->destroy = 1;
 	r->offset = r->base - map.rm.size;
 	return result;
 
@@ -279,7 +277,14 @@ static void ps3_mm_region_destroy(struct mem_region *r)
 {
 	int result;
 
+	if (!r->destroy) {
+		pr_info("%s:%d: Not destroying high region: %llxh %llxh\n",
+			__func__, __LINE__, r->base, r->size);
+		return;
+	}
+
 	DBG("%s:%d: r->base = %llxh\n", __func__, __LINE__, r->base);
+
 	if (r->base) {
 		result = lv1_release_memory(r->base);
 		BUG_ON(result);
@@ -288,50 +293,36 @@ static void ps3_mm_region_destroy(struct mem_region *r)
 	}
 }
 
-/**
- * ps3_mm_add_memory - hot add memory
- */
-
-static int __init ps3_mm_add_memory(void)
+static int ps3_mm_get_repository_highmem(struct mem_region *r)
 {
 	int result;
-	unsigned long start_addr;
-	unsigned long start_pfn;
-	unsigned long nr_pages;
-
-	if (!firmware_has_feature(FW_FEATURE_PS3_LV1))
-		return -ENODEV;
 
-	BUG_ON(!mem_init_done);
+	/* Assume a single highmem region. */
 
-	start_addr = map.rm.size;
-	start_pfn = start_addr >> PAGE_SHIFT;
-	nr_pages = (map.r1.size + PAGE_SIZE - 1) >> PAGE_SHIFT;
+	result = ps3_repository_read_highmem_info(0, &r->base, &r->size);
 
-	DBG("%s:%d: start_addr %lxh, start_pfn %lxh, nr_pages %lxh\n",
-		__func__, __LINE__, start_addr, start_pfn, nr_pages);
-
-	result = add_memory(0, start_addr, map.r1.size);
+	if (result)
+		goto zero_region;
 
-	if (result) {
-		pr_err("%s:%d: add_memory failed: (%d)\n",
-			__func__, __LINE__, result);
-		return result;
+	if (!r->base || !r->size) {
+		result = -1;
+		goto zero_region;
 	}
 
-	memblock_add(start_addr, map.r1.size);
+	r->offset = r->base - map.rm.size;
 
-	result = online_pages(start_pfn, nr_pages);
+	DBG("%s:%d: Found high region in repository: %llxh %llxh\n",
+	    __func__, __LINE__, r->base, r->size);
 
-	if (result)
-		pr_err("%s:%d: online_pages failed: (%d)\n",
-			__func__, __LINE__, result);
+	return 0;
 
+zero_region:
+	DBG("%s:%d: No high region in repository.\n", __func__, __LINE__);
+
+	r->size = r->base = r->offset = 0;
 	return result;
 }
 
-device_initcall(ps3_mm_add_memory);
-
 /*============================================================================*/
 /* dma routines                                                               */
 /*============================================================================*/
@@ -1217,13 +1208,23 @@ void __init ps3_mm_init(void)
 	BUG_ON(map.rm.base);
 	BUG_ON(!map.rm.size);
 
+	/* Check if we got the highmem region from an earlier boot step */
 
-	/* arrange to do this in ps3_mm_add_memory */
-	ps3_mm_region_create(&map.r1, map.total - map.rm.size);
+	if (ps3_mm_get_repository_highmem(&map.r1))
+		ps3_mm_region_create(&map.r1, map.total - map.rm.size);
 
 	/* correct map.total for the real total amount of memory we use */
 	map.total = map.rm.size + map.r1.size;
 
+	if (!map.r1.size) {
+		DBG("%s:%d: No highmem region found\n", __func__, __LINE__);
+	} else {
+		DBG("%s:%d: Adding highmem region: %llxh %llxh\n",
+			__func__, __LINE__, map.rm.size,
+			map.total - map.rm.size);
+		memblock_add(map.rm.size, map.total - map.rm.size);
+	}
+
 	DBG(" <- %s:%d\n", __func__, __LINE__);
 }
 
diff --git a/arch/powerpc/platforms/ps3/platform.h b/arch/powerpc/platforms/ps3/platform.h
index 1a633ed0fe9..d71329a8e32 100644
--- a/arch/powerpc/platforms/ps3/platform.h
+++ b/arch/powerpc/platforms/ps3/platform.h
@@ -188,6 +188,22 @@ int ps3_repository_read_rm_size(unsigned int ppe_id, u64 *rm_size);
 int ps3_repository_read_region_total(u64 *region_total);
 int ps3_repository_read_mm_info(u64 *rm_base, u64 *rm_size,
 	u64 *region_total);
+int ps3_repository_read_highmem_region_count(unsigned int *region_count);
+int ps3_repository_read_highmem_base(unsigned int region_index,
+	u64 *highmem_base);
+int ps3_repository_read_highmem_size(unsigned int region_index,
+	u64 *highmem_size);
+int ps3_repository_read_highmem_info(unsigned int region_index,
+	u64 *highmem_base, u64 *highmem_size);
+
+int ps3_repository_write_highmem_region_count(unsigned int region_count);
+int ps3_repository_write_highmem_base(unsigned int region_index,
+	u64 highmem_base);
+int ps3_repository_write_highmem_size(unsigned int region_index,
+	u64 highmem_size);
+int ps3_repository_write_highmem_info(unsigned int region_index,
+	u64 highmem_base, u64 highmem_size);
+int ps3_repository_delete_highmem_info(unsigned int region_index);
 
 /* repository pme info */
 
diff --git a/arch/powerpc/platforms/ps3/repository.c b/arch/powerpc/platforms/ps3/repository.c
index 7bdfea336f5..9b47ba7a5de 100644
--- a/arch/powerpc/platforms/ps3/repository.c
+++ b/arch/powerpc/platforms/ps3/repository.c
@@ -779,6 +779,72 @@ int ps3_repository_read_mm_info(u64 *rm_base, u64 *rm_size, u64 *region_total)
 }
 
 /**
+ * ps3_repository_read_highmem_region_count - Read the number of highmem regions
+ *
+ * Bootloaders must arrange the repository nodes such that regions are indexed
+ * with a region_index from 0 to region_count-1.
+ */
+
+int ps3_repository_read_highmem_region_count(unsigned int *region_count)
+{
+	int result;
+	u64 v1 = 0;
+
+	result = read_node(PS3_LPAR_ID_CURRENT,
+		make_first_field("highmem", 0),
+		make_field("region", 0),
+		make_field("count", 0),
+		0,
+		&v1, NULL);
+	*region_count = v1;
+	return result;
+}
+
+
+int ps3_repository_read_highmem_base(unsigned int region_index,
+	u64 *highmem_base)
+{
+	return read_node(PS3_LPAR_ID_CURRENT,
+		make_first_field("highmem", 0),
+		make_field("region", region_index),
+		make_field("base", 0),
+		0,
+		highmem_base, NULL);
+}
+
+int ps3_repository_read_highmem_size(unsigned int region_index,
+	u64 *highmem_size)
+{
+	return read_node(PS3_LPAR_ID_CURRENT,
+		make_first_field("highmem", 0),
+		make_field("region", region_index),
+		make_field("size", 0),
+		0,
+		highmem_size, NULL);
+}
+
+/**
+ * ps3_repository_read_highmem_info - Read high memory region info
+ * @region_index: Region index, {0,..,region_count-1}.
+ * @highmem_base: High memory base address.
+ * @highmem_size: High memory size.
+ *
+ * Bootloaders that preallocate highmem regions must place the
+ * region info into the repository at these well known nodes.
+ */
+
+int ps3_repository_read_highmem_info(unsigned int region_index,
+	u64 *highmem_base, u64 *highmem_size)
+{
+	int result;
+
+	*highmem_base = 0;
+	result = ps3_repository_read_highmem_base(region_index, highmem_base);
+	return result ? result
+		: ps3_repository_read_highmem_size(region_index, highmem_size);
+}
+
+/**
  * ps3_repository_read_num_spu_reserved - Number of physical spus reserved.
  * @num_spu: Number of physical spus.
  */
@@ -1002,6 +1068,138 @@ int ps3_repository_read_lpm_privileges(unsigned int be_index, u64 *lpar,
 			    lpar, rights);
 }
 
+#if defined(CONFIG_PS3_REPOSITORY_WRITE)
+
+static int create_node(u64 n1, u64 n2, u64 n3, u64 n4, u64 v1, u64 v2)
+{
+	int result;
+
+	dump_node(0, n1, n2, n3, n4, v1, v2);
+
+	result = lv1_create_repository_node(n1, n2, n3, n4, v1, v2);
+
+	if (result) {
+		pr_devel("%s:%d: lv1_create_repository_node failed: %s\n",
+			__func__, __LINE__, ps3_result(result));
+		return -ENOENT;
+	}
+
+	return 0;
+}
+
+static int delete_node(u64 n1, u64 n2, u64 n3, u64 n4)
+{
+	int result;
+
+	dump_node(0, n1, n2, n3, n4, 0, 0);
+
+	result = lv1_delete_repository_node(n1, n2, n3, n4);
+
+	if (result) {
+		pr_devel("%s:%d: lv1_delete_repository_node failed: %s\n",
+			__func__, __LINE__, ps3_result(result));
+		return -ENOENT;
+	}
+
+	return 0;
+}
+
+static int write_node(u64 n1, u64 n2, u64 n3, u64 n4, u64 v1, u64 v2)
+{
+	int result;
+
+	result = create_node(n1, n2, n3, n4, v1, v2);
+
+	if (!result)
+		return 0;
+
+	result = lv1_write_repository_node(n1, n2, n3, n4, v1, v2);
+
+	if (result) {
+		pr_devel("%s:%d: lv1_write_repository_node failed: %s\n",
+			__func__, __LINE__, ps3_result(result));
+		return -ENOENT;
+	}
+
+	return 0;
+}
+
+int ps3_repository_write_highmem_region_count(unsigned int region_count)
+{
+	int result;
+	u64 v1 = (u64)region_count;
+
+	result = write_node(
+		make_first_field("highmem", 0),
+		make_field("region", 0),
+		make_field("count", 0),
+		0,
+		v1, 0);
+	return result;
+}
+
+int ps3_repository_write_highmem_base(unsigned int region_index,
+	u64 highmem_base)
+{
+	return write_node(
+		make_first_field("highmem", 0),
+		make_field("region", region_index),
+		make_field("base", 0),
+		0,
+		highmem_base, 0);
+}
+
+int ps3_repository_write_highmem_size(unsigned int region_index,
+	u64 highmem_size)
+{
+	return write_node(
+		make_first_field("highmem", 0),
+		make_field("region", region_index),
+		make_field("size", 0),
+		0,
+		highmem_size, 0);
+}
+
+int ps3_repository_write_highmem_info(unsigned int region_index,
+	u64 highmem_base, u64 highmem_size)
+{
+	int result;
+
+	result = ps3_repository_write_highmem_base(region_index, highmem_base);
+	return result ? result
+		: ps3_repository_write_highmem_size(region_index, highmem_size);
+}
+
+static int ps3_repository_delete_highmem_base(unsigned int region_index)
+{
+	return delete_node(
+		make_first_field("highmem", 0),
+		make_field("region", region_index),
+		make_field("base", 0),
+		0);
+}
+
+static int ps3_repository_delete_highmem_size(unsigned int region_index)
+{
+	return delete_node(
+		make_first_field("highmem", 0),
+		make_field("region", region_index),
+		make_field("size", 0),
+		0);
+}
+
+int ps3_repository_delete_highmem_info(unsigned int region_index)
+{
+	int result;
+
+	result = ps3_repository_delete_highmem_base(region_index);
+	result += ps3_repository_delete_highmem_size(region_index);
+
+	return result ? -1 : 0;
+}
+
+#endif /* defined(CONFIG_PS3_WRITE_REPOSITORY) */
+
 #if defined(DEBUG)
 
 int ps3_repository_dump_resource_info(const struct ps3_repository_device *repo)
diff --git a/arch/powerpc/platforms/pseries/Kconfig b/arch/powerpc/platforms/pseries/Kconfig
index aadbe4f6d53..837cf49357e 100644
--- a/arch/powerpc/platforms/pseries/Kconfig
+++ b/arch/powerpc/platforms/pseries/Kconfig
@@ -30,9 +30,9 @@ config PPC_SPLPAR
 	  two or more partitions.
 
 config EEH
-	bool "PCI Extended Error Handling (EEH)" if EXPERT
+	bool
 	depends on PPC_PSERIES && PCI
-	default y if !EXPERT
+	default y
 
 config PSERIES_MSI
        bool
@@ -67,7 +67,7 @@ config IO_EVENT_IRQ
 
 	  This option will only enable the IO event platform code. You
 	  will still need to enable or compile the actual drivers
-	  that use this infrastruture to handle IO event interrupts.
+	  that use this infrastructure to handle IO event interrupts.
 
 	  Say Y if you are unsure.
 
diff --git a/arch/powerpc/platforms/pseries/eeh.c b/arch/powerpc/platforms/pseries/eeh.c
index 309d38ef732..ecd394cf34e 100644
--- a/arch/powerpc/platforms/pseries/eeh.c
+++ b/arch/powerpc/platforms/pseries/eeh.c
@@ -489,7 +489,7 @@ int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev)
 	 * a stack trace will help the device-driver authors figure
 	 * out what happened.  So print that out.
 	 */
-	dump_stack();
+	WARN(1, "EEH: failure detected\n");
 	return 1;
 
 dn_unlock:
@@ -1076,7 +1076,7 @@ static void eeh_add_device_late(struct pci_dev *dev)
 	pr_debug("EEH: Adding device %s\n", pci_name(dev));
 
 	dn = pci_device_to_OF_node(dev);
-	edev = pci_dev_to_eeh_dev(dev);
+	edev = of_node_to_eeh_dev(dn);
 	if (edev->pdev == dev) {
 		pr_debug("EEH: Already referenced !\n");
 		return;
diff --git a/arch/powerpc/platforms/pseries/plpar_wrappers.h b/arch/powerpc/platforms/pseries/plpar_wrappers.h
index 342797fc0f9..13e8cc43adf 100644
--- a/arch/powerpc/platforms/pseries/plpar_wrappers.h
+++ b/arch/powerpc/platforms/pseries/plpar_wrappers.h
@@ -22,12 +22,12 @@ static inline long poll_pending(void)
 
 static inline u8 get_cede_latency_hint(void)
 {
-	return get_lppaca()->gpr5_dword.fields.cede_latency_hint;
+	return get_lppaca()->cede_latency_hint;
 }
 
 static inline void set_cede_latency_hint(u8 latency_hint)
 {
-	get_lppaca()->gpr5_dword.fields.cede_latency_hint = latency_hint;
+	get_lppaca()->cede_latency_hint = latency_hint;
 }
 
 static inline long cede_processor(void)
diff --git a/arch/powerpc/platforms/pseries/reconfig.c b/arch/powerpc/platforms/pseries/reconfig.c
index 168651acdd8..7b3bf76ef83 100644
--- a/arch/powerpc/platforms/pseries/reconfig.c
+++ b/arch/powerpc/platforms/pseries/reconfig.c
@@ -103,11 +103,13 @@ int pSeries_reconfig_notifier_register(struct notifier_block *nb)
 {
 	return blocking_notifier_chain_register(&pSeries_reconfig_chain, nb);
 }
+EXPORT_SYMBOL_GPL(pSeries_reconfig_notifier_register);
 
 void pSeries_reconfig_notifier_unregister(struct notifier_block *nb)
 {
 	blocking_notifier_chain_unregister(&pSeries_reconfig_chain, nb);
 }
+EXPORT_SYMBOL_GPL(pSeries_reconfig_notifier_unregister);
 
 int pSeries_reconfig_notify(unsigned long action, void *p)
 {
@@ -426,6 +428,7 @@ static int do_remove_property(char *buf, size_t bufsize)
 static int do_update_property(char *buf, size_t bufsize)
 {
 	struct device_node *np;
+	struct pSeries_reconfig_prop_update upd_value;
 	unsigned char *value;
 	char *name, *end, *next_prop;
 	int rc, length;
@@ -454,6 +457,10 @@ static int do_update_property(char *buf, size_t bufsize)
 		return -ENODEV;
 	}
 
+	upd_value.node = np;
+	upd_value.property = newprop;
+	pSeries_reconfig_notify(PSERIES_UPDATE_PROPERTY, &upd_value);
+
 	rc = prom_update_property(np, newprop, oldprop);
 	if (rc)
 		return rc;