16 files changed, 213 insertions, 132 deletions

diff --git a/arch/powerpc/platforms/pseries/Kconfig b/arch/powerpc/platforms/pseries/Kconfig
index 80b1d57c306..756b482f819 100644
--- a/arch/powerpc/platforms/pseries/Kconfig
+++ b/arch/powerpc/platforms/pseries/Kconfig
@@ -21,6 +21,7 @@ config PPC_PSERIES
 	select HAVE_CONTEXT_TRACKING
 	select HOTPLUG_CPU if SMP
 	select ARCH_RANDOM
+	select PPC_DOORBELL
 	default y
 
 config PPC_SPLPAR
@@ -111,6 +112,18 @@ config CMM
 	  will be reused for other LPARs. The interface allows firmware to
 	  balance memory across many LPARs.
 
+config HV_PERF_CTRS
+       bool "Hypervisor supplied PMU events (24x7 & GPCI)"
+       default y
+       depends on PERF_EVENTS && PPC_PSERIES
+       help
+	  Enable access to hypervisor supplied counters in perf. Currently,
+	  this enables code that uses the hcall GetPerfCounterInfo and 24x7
+	  interfaces to retrieve counters. GPCI exists on Power 6 and later
+	  systems. 24x7 is available on Power 8 systems.
+
+          If unsure, select Y.
+
 config DTL
 	bool "Dispatch Trace Log"
 	depends on PPC_SPLPAR && DEBUG_FS
diff --git a/arch/powerpc/platforms/pseries/dlpar.c b/arch/powerpc/platforms/pseries/dlpar.c
index a8fe5aa3d34..2d0b4d68a40 100644
--- a/arch/powerpc/platforms/pseries/dlpar.c
+++ b/arch/powerpc/platforms/pseries/dlpar.c
@@ -11,7 +11,6 @@
  */
 
 #include <linux/kernel.h>
-#include <linux/kref.h>
 #include <linux/notifier.h>
 #include <linux/spinlock.h>
 #include <linux/cpu.h>
@@ -87,7 +86,7 @@ static struct device_node *dlpar_parse_cc_node(struct cc_workarea *ccwa,
 	}
 
 	of_node_set_flag(dn, OF_DYNAMIC);
-	kref_init(&dn->kref);
+	of_node_init(dn);
 
 	return dn;
 }
diff --git a/arch/powerpc/platforms/pseries/eeh_pseries.c b/arch/powerpc/platforms/pseries/eeh_pseries.c
index 8a8f0472d98..0bec0c02c5e 100644
--- a/arch/powerpc/platforms/pseries/eeh_pseries.c
+++ b/arch/powerpc/platforms/pseries/eeh_pseries.c
@@ -175,6 +175,36 @@ static int pseries_eeh_find_cap(struct device_node *dn, int cap)
 	return 0;
 }
 
+static int pseries_eeh_find_ecap(struct device_node *dn, int cap)
+{
+	struct pci_dn *pdn = PCI_DN(dn);
+	struct eeh_dev *edev = of_node_to_eeh_dev(dn);
+	u32 header;
+	int pos = 256;
+	int ttl = (4096 - 256) / 8;
+
+	if (!edev || !edev->pcie_cap)
+		return 0;
+	if (rtas_read_config(pdn, pos, 4, &header) != PCIBIOS_SUCCESSFUL)
+		return 0;
+	else if (!header)
+		return 0;
+
+	while (ttl-- > 0) {
+		if (PCI_EXT_CAP_ID(header) == cap && pos)
+			return pos;
+
+		pos = PCI_EXT_CAP_NEXT(header);
+		if (pos < 256)
+			break;
+
+		if (rtas_read_config(pdn, pos, 4, &header) != PCIBIOS_SUCCESSFUL)
+			break;
+	}
+
+	return 0;
+}
+
 /**
  * pseries_eeh_of_probe - EEH probe on the given device
  * @dn: OF node
@@ -220,7 +250,9 @@ static void *pseries_eeh_of_probe(struct device_node *dn, void *flag)
 	 * or PCIe switch downstream port.
 	 */
 	edev->class_code = class_code;
+	edev->pcix_cap = pseries_eeh_find_cap(dn, PCI_CAP_ID_PCIX);
 	edev->pcie_cap = pseries_eeh_find_cap(dn, PCI_CAP_ID_EXP);
+	edev->aer_cap = pseries_eeh_find_ecap(dn, PCI_EXT_CAP_ID_ERR);
 	edev->mode &= 0xFFFFFF00;
 	if ((edev->class_code >> 8) == PCI_CLASS_BRIDGE_PCI) {
 		edev->mode |= EEH_DEV_BRIDGE;
@@ -464,6 +496,7 @@ static int pseries_eeh_get_state(struct eeh_pe *pe, int *state)
 			} else {
 				result = EEH_STATE_NOT_SUPPORT;
 			}
+			break;
 		default:
 			result = EEH_STATE_NOT_SUPPORT;
 		}
@@ -499,11 +532,19 @@ static int pseries_eeh_reset(struct eeh_pe *pe, int option)
 	/* If fundamental-reset not supported, try hot-reset */
 	if (option == EEH_RESET_FUNDAMENTAL &&
 	    ret == -8) {
+		option = EEH_RESET_HOT;
 		ret = rtas_call(ibm_set_slot_reset, 4, 1, NULL,
 				config_addr, BUID_HI(pe->phb->buid),
-				BUID_LO(pe->phb->buid), EEH_RESET_HOT);
+				BUID_LO(pe->phb->buid), option);
 	}
 
+	/* We need reset hold or settlement delay */
+	if (option == EEH_RESET_FUNDAMENTAL ||
+	    option == EEH_RESET_HOT)
+		msleep(EEH_PE_RST_HOLD_TIME);
+	else
+		msleep(EEH_PE_RST_SETTLE_TIME);
+
 	return ret;
 }
 
diff --git a/arch/powerpc/platforms/pseries/hotplug-cpu.c b/arch/powerpc/platforms/pseries/hotplug-cpu.c
index 0ea99e3d481..20d62975856 100644
--- a/arch/powerpc/platforms/pseries/hotplug-cpu.c
+++ b/arch/powerpc/platforms/pseries/hotplug-cpu.c
@@ -88,13 +88,14 @@ void set_default_offline_state(int cpu)
 
 static void rtas_stop_self(void)
 {
-	struct rtas_args args = {
-		.token = cpu_to_be32(rtas_stop_self_token),
+	static struct rtas_args args = {
 		.nargs = 0,
 		.nret = 1,
 		.rets = &args.args[0],
 	};
 
+	args.token = cpu_to_be32(rtas_stop_self_token);
+
 	local_irq_disable();
 
 	BUG_ON(rtas_stop_self_token == RTAS_UNKNOWN_SERVICE);
@@ -420,4 +421,4 @@ static int __init pseries_cpu_hotplug_init(void)
 
 	return 0;
 }
-arch_initcall(pseries_cpu_hotplug_init);
+machine_arch_initcall(pseries, pseries_cpu_hotplug_init);
diff --git a/arch/powerpc/platforms/pseries/hotplug-memory.c b/arch/powerpc/platforms/pseries/hotplug-memory.c
index 9590dbb756f..7995135170a 100644
--- a/arch/powerpc/platforms/pseries/hotplug-memory.c
+++ b/arch/powerpc/platforms/pseries/hotplug-memory.c
@@ -14,13 +14,14 @@
 #include <linux/memblock.h>
 #include <linux/vmalloc.h>
 #include <linux/memory.h>
+#include <linux/memory_hotplug.h>
 
 #include <asm/firmware.h>
 #include <asm/machdep.h>
 #include <asm/prom.h>
 #include <asm/sparsemem.h>
 
-static unsigned long get_memblock_size(void)
+unsigned long pseries_memory_block_size(void)
 {
 	struct device_node *np;
 	unsigned int memblock_size = MIN_MEMORY_BLOCK_SIZE;
@@ -63,72 +64,53 @@ static unsigned long get_memblock_size(void)
 	return memblock_size;
 }
 
-/* WARNING: This is going to override the generic definition whenever
- * pseries is built-in regardless of what platform is active at boot
- * time. This is fine for now as this is the only "option" and it
- * should work everywhere. If not, we'll have to turn this into a
- * ppc_md. callback
- */
-unsigned long memory_block_size_bytes(void)
+#ifdef CONFIG_MEMORY_HOTREMOVE
+static int pseries_remove_memory(u64 start, u64 size)
 {
-	return get_memblock_size();
+	int ret;
+
+	/* Remove htab bolted mappings for this section of memory */
+	start = (unsigned long)__va(start);
+	ret = remove_section_mapping(start, start + size);
+
+	/* Ensure all vmalloc mappings are flushed in case they also
+	 * hit that section of memory
+	 */
+	vm_unmap_aliases();
+
+	return ret;
 }
 
-#ifdef CONFIG_MEMORY_HOTREMOVE
 static int pseries_remove_memblock(unsigned long base, unsigned int memblock_size)
 {
-	unsigned long start, start_pfn;
-	struct zone *zone;
-	int ret;
-	unsigned long section;
-	unsigned long sections_to_remove;
+	unsigned long block_sz, start_pfn;
+	int sections_per_block;
+	int i, nid;
 
 	start_pfn = base >> PAGE_SHIFT;
 
-	if (!pfn_valid(start_pfn)) {
-		memblock_remove(base, memblock_size);
-		return 0;
-	}
+	lock_device_hotplug();
 
-	zone = page_zone(pfn_to_page(start_pfn));
+	if (!pfn_valid(start_pfn))
+		goto out;
 
-	/*
-	 * Remove section mappings and sysfs entries for the
-	 * section of the memory we are removing.
-	 *
-	 * NOTE: Ideally, this should be done in generic code like
-	 * remove_memory(). But remove_memory() gets called by writing
-	 * to sysfs "state" file and we can't remove sysfs entries
-	 * while writing to it. So we have to defer it to here.
-	 */
-	sections_to_remove = (memblock_size >> PAGE_SHIFT) / PAGES_PER_SECTION;
-	for (section = 0; section < sections_to_remove; section++) {
-		unsigned long pfn = start_pfn + section * PAGES_PER_SECTION;
-		ret = __remove_pages(zone, pfn, PAGES_PER_SECTION);
-		if (ret)
-			return ret;
+	block_sz = pseries_memory_block_size();
+	sections_per_block = block_sz / MIN_MEMORY_BLOCK_SIZE;
+	nid = memory_add_physaddr_to_nid(base);
+
+	for (i = 0; i < sections_per_block; i++) {
+		remove_memory(nid, base, MIN_MEMORY_BLOCK_SIZE);
+		base += MIN_MEMORY_BLOCK_SIZE;
 	}
 
-	/*
-	 * Update memory regions for memory remove
-	 */
+out:
+	/* Update memory regions for memory remove */
 	memblock_remove(base, memblock_size);
-
-	/*
-	 * Remove htab bolted mappings for this section of memory
-	 */
-	start = (unsigned long)__va(base);
-	ret = remove_section_mapping(start, start + memblock_size);
-
-	/* Ensure all vmalloc mappings are flushed in case they also
-	 * hit that section of memory
-	 */
-	vm_unmap_aliases();
-
-	return ret;
+	unlock_device_hotplug();
+	return 0;
 }
 
-static int pseries_remove_memory(struct device_node *np)
+static int pseries_remove_mem_node(struct device_node *np)
 {
 	const char *type;
 	const unsigned int *regs;
@@ -153,8 +135,8 @@ static int pseries_remove_memory(struct device_node *np)
 	base = *(unsigned long *)regs;
 	lmb_size = regs[3];
 
-	ret = pseries_remove_memblock(base, lmb_size);
-	return ret;
+	pseries_remove_memblock(base, lmb_size);
+	return 0;
 }
 #else
 static inline int pseries_remove_memblock(unsigned long base,
@@ -162,13 +144,13 @@ static inline int pseries_remove_memblock(unsigned long base,
 {
 	return -EOPNOTSUPP;
 }
-static inline int pseries_remove_memory(struct device_node *np)
+static inline int pseries_remove_mem_node(struct device_node *np)
 {
 	return -EOPNOTSUPP;
 }
 #endif /* CONFIG_MEMORY_HOTREMOVE */
 
-static int pseries_add_memory(struct device_node *np)
+static int pseries_add_mem_node(struct device_node *np)
 {
 	const char *type;
 	const unsigned int *regs;
@@ -208,7 +190,7 @@ static int pseries_update_drconf_memory(struct of_prop_reconfig *pr)
 	u32 *p;
 	int i, rc = -EINVAL;
 
-	memblock_size = get_memblock_size();
+	memblock_size = pseries_memory_block_size();
 	if (!memblock_size)
 		return -EINVAL;
 
@@ -254,10 +236,10 @@ static int pseries_memory_notifier(struct notifier_block *nb,
 
 	switch (action) {
 	case OF_RECONFIG_ATTACH_NODE:
-		err = pseries_add_memory(node);
+		err = pseries_add_mem_node(node);
 		break;
 	case OF_RECONFIG_DETACH_NODE:
-		err = pseries_remove_memory(node);
+		err = pseries_remove_mem_node(node);
 		break;
 	case OF_RECONFIG_UPDATE_PROPERTY:
 		pr = (struct of_prop_reconfig *)node;
@@ -277,6 +259,10 @@ static int __init pseries_memory_hotplug_init(void)
 	if (firmware_has_feature(FW_FEATURE_LPAR))
 		of_reconfig_notifier_register(&pseries_mem_nb);
 
+#ifdef CONFIG_MEMORY_HOTREMOVE
+	ppc_md.remove_memory = pseries_remove_memory;
+#endif
+
 	return 0;
 }
 machine_device_initcall(pseries, pseries_memory_hotplug_init);
diff --git a/arch/powerpc/platforms/pseries/hvCall.S b/arch/powerpc/platforms/pseries/hvCall.S
index 444fe7759e5..99ecf0a5a92 100644
--- a/arch/powerpc/platforms/pseries/hvCall.S
+++ b/arch/powerpc/platforms/pseries/hvCall.S
@@ -49,7 +49,7 @@ END_FTR_SECTION(0, 1);						\
 	std	r0,16(r1);					\
 	addi	r4,r1,STK_PARAM(FIRST_REG);			\
 	stdu	r1,-STACK_FRAME_OVERHEAD(r1);			\
-	bl	.__trace_hcall_entry;				\
+	bl	__trace_hcall_entry;				\
 	addi	r1,r1,STACK_FRAME_OVERHEAD;			\
 	ld	r0,16(r1);					\
 	ld	r3,STK_PARAM(R3)(r1);				\
@@ -83,7 +83,7 @@ END_FTR_SECTION(0, 1);						\
 	mr	r3,r6;						\
 	std	r0,16(r1);					\
 	stdu	r1,-STACK_FRAME_OVERHEAD(r1);			\
-	bl	.__trace_hcall_exit;				\
+	bl	__trace_hcall_exit;				\
 	addi	r1,r1,STACK_FRAME_OVERHEAD;			\
 	ld	r0,16(r1);					\
 	ld	r3,STK_PARAM(R3)(r1);				\
@@ -106,7 +106,7 @@ END_FTR_SECTION(0, 1);						\
 
 	.text
 
-_GLOBAL(plpar_hcall_norets)
+_GLOBAL_TOC(plpar_hcall_norets)
 	HMT_MEDIUM
 
 	mfcr	r0
@@ -122,7 +122,7 @@ _GLOBAL(plpar_hcall_norets)
 	mtcrf	0xff,r0
 	blr				/* return r3 = status */
 
-_GLOBAL(plpar_hcall)
+_GLOBAL_TOC(plpar_hcall)
 	HMT_MEDIUM
 
 	mfcr	r0
@@ -188,7 +188,7 @@ _GLOBAL(plpar_hcall_raw)
 
 	blr				/* return r3 = status */
 
-_GLOBAL(plpar_hcall9)
+_GLOBAL_TOC(plpar_hcall9)
 	HMT_MEDIUM
 
 	mfcr	r0
diff --git a/arch/powerpc/platforms/pseries/io_event_irq.c b/arch/powerpc/platforms/pseries/io_event_irq.c
index 5ea88d1541f..0240c4ff878 100644
--- a/arch/powerpc/platforms/pseries/io_event_irq.c
+++ b/arch/powerpc/platforms/pseries/io_event_irq.c
@@ -82,9 +82,9 @@ static struct pseries_io_event * ioei_find_event(struct rtas_error_log *elog)
 	 * RTAS_TYPE_IO only exists in extended event log version 6 or later.
 	 * No need to check event log version.
 	 */
-	if (unlikely(elog->type != RTAS_TYPE_IO)) {
-		printk_once(KERN_WARNING "io_event_irq: Unexpected event type %d",
-			    elog->type);
+	if (unlikely(rtas_error_type(elog) != RTAS_TYPE_IO)) {
+		printk_once(KERN_WARNING"io_event_irq: Unexpected event type %d",
+			    rtas_error_type(elog));
 		return NULL;
 	}
 
diff --git a/arch/powerpc/platforms/pseries/mobility.c b/arch/powerpc/platforms/pseries/mobility.c
index cde4e0a095a..bde7ebad394 100644
--- a/arch/powerpc/platforms/pseries/mobility.c
+++ b/arch/powerpc/platforms/pseries/mobility.c
@@ -290,13 +290,6 @@ void post_mobility_fixup(void)
 	int rc;
 	int activate_fw_token;
 
-	rc = pseries_devicetree_update(MIGRATION_SCOPE);
-	if (rc) {
-		printk(KERN_ERR "Initial post-mobility device tree update "
-		       "failed: %d\n", rc);
-		return;
-	}
-
 	activate_fw_token = rtas_token("ibm,activate-firmware");
 	if (activate_fw_token == RTAS_UNKNOWN_SERVICE) {
 		printk(KERN_ERR "Could not make post-mobility "
@@ -304,16 +297,17 @@ void post_mobility_fixup(void)
 		return;
 	}
 
-	rc = rtas_call(activate_fw_token, 0, 1, NULL);
-	if (!rc) {
-		rc = pseries_devicetree_update(MIGRATION_SCOPE);
-		if (rc)
-			printk(KERN_ERR "Secondary post-mobility device tree "
-			       "update failed: %d\n", rc);
-	} else {
+	do {
+		rc = rtas_call(activate_fw_token, 0, 1, NULL);
+	} while (rtas_busy_delay(rc));
+
+	if (rc)
 		printk(KERN_ERR "Post-mobility activate-fw failed: %d\n", rc);
-		return;
-	}
+
+	rc = pseries_devicetree_update(MIGRATION_SCOPE);
+	if (rc)
+		printk(KERN_ERR "Post-mobility device tree update "
+			"failed: %d\n", rc);
 
 	return;
 }
diff --git a/arch/powerpc/platforms/pseries/nvram.c b/arch/powerpc/platforms/pseries/nvram.c
index d7096f2f775..0cc240b7f69 100644
--- a/arch/powerpc/platforms/pseries/nvram.c
+++ b/arch/powerpc/platforms/pseries/nvram.c
@@ -298,13 +298,13 @@ int nvram_write_os_partition(struct nvram_os_partition *part, char * buff,
 
 	rc = ppc_md.nvram_write((char *)&info, sizeof(struct err_log_info), &tmp_index);
 	if (rc <= 0) {
-		pr_err("%s: Failed nvram_write (%d)\n", __FUNCTION__, rc);
+		pr_err("%s: Failed nvram_write (%d)\n", __func__, rc);
 		return rc;
 	}
 
 	rc = ppc_md.nvram_write(buff, length, &tmp_index);
 	if (rc <= 0) {
-		pr_err("%s: Failed nvram_write (%d)\n", __FUNCTION__, rc);
+		pr_err("%s: Failed nvram_write (%d)\n", __func__, rc);
 		return rc;
 	}
 	
@@ -351,15 +351,14 @@ int nvram_read_partition(struct nvram_os_partition *part, char *buff,
 					sizeof(struct err_log_info),
 					&tmp_index);
 		if (rc <= 0) {
-			pr_err("%s: Failed nvram_read (%d)\n", __FUNCTION__,
-									rc);
+			pr_err("%s: Failed nvram_read (%d)\n", __func__, rc);
 			return rc;
 		}
 	}
 
 	rc = ppc_md.nvram_read(buff, length, &tmp_index);
 	if (rc <= 0) {
-		pr_err("%s: Failed nvram_read (%d)\n", __FUNCTION__, rc);
+		pr_err("%s: Failed nvram_read (%d)\n", __func__, rc);
 		return rc;
 	}
 
@@ -869,7 +868,7 @@ static void oops_to_nvram(struct kmsg_dumper *dumper,
 		break;
 	default:
 		pr_err("%s: ignoring unrecognized KMSG_DUMP_* reason %d\n",
-						__FUNCTION__, (int) reason);
+		       __func__, (int) reason);
 		return;
 	}
 
diff --git a/arch/powerpc/platforms/pseries/pci_dlpar.c b/arch/powerpc/platforms/pseries/pci_dlpar.c
index efe61374f6e..203cbf0dc10 100644
--- a/arch/powerpc/platforms/pseries/pci_dlpar.c
+++ b/arch/powerpc/platforms/pseries/pci_dlpar.c
@@ -37,15 +37,15 @@ find_bus_among_children(struct pci_bus *bus,
                         struct device_node *dn)
 {
 	struct pci_bus *child = NULL;
-	struct list_head *tmp;
+	struct pci_bus *tmp;
 	struct device_node *busdn;
 
 	busdn = pci_bus_to_OF_node(bus);
 	if (busdn == dn)
 		return bus;
 
-	list_for_each(tmp, &bus->children) {
-		child = find_bus_among_children(pci_bus_b(tmp), dn);
+	list_for_each_entry(tmp, &bus->children, node) {
+		child = find_bus_among_children(tmp, dn);
 		if (child)
 			break;
 	};
diff --git a/arch/powerpc/platforms/pseries/pseries.h b/arch/powerpc/platforms/pseries/pseries.h
index 99219530ea4..361add62abf 100644
--- a/arch/powerpc/platforms/pseries/pseries.h
+++ b/arch/powerpc/platforms/pseries/pseries.h
@@ -64,4 +64,6 @@ extern int dlpar_detach_node(struct device_node *);
 struct pci_host_bridge;
 int pseries_root_bridge_prepare(struct pci_host_bridge *bridge);
 
+unsigned long pseries_memory_block_size(void);
+
 #endif /* _PSERIES_PSERIES_H */
diff --git a/arch/powerpc/platforms/pseries/ras.c b/arch/powerpc/platforms/pseries/ras.c
index 721c0586b28..9c5778e6ed4 100644
--- a/arch/powerpc/platforms/pseries/ras.c
+++ b/arch/powerpc/platforms/pseries/ras.c
@@ -236,7 +236,8 @@ static irqreturn_t ras_error_interrupt(int irq, void *dev_id)
 
 	rtas_elog = (struct rtas_error_log *)ras_log_buf;
 
-	if ((status == 0) && (rtas_elog->severity >= RTAS_SEVERITY_ERROR_SYNC))
+	if (status == 0 &&
+	    rtas_error_severity(rtas_elog) >= RTAS_SEVERITY_ERROR_SYNC)
 		fatal = 1;
 	else
 		fatal = 0;
@@ -300,13 +301,14 @@ static struct rtas_error_log *fwnmi_get_errinfo(struct pt_regs *regs)
 
 	/* If it isn't an extended log we can use the per cpu 64bit buffer */
 	h = (struct rtas_error_log *)&savep[1];
-	if (!h->extended) {
+	if (!rtas_error_extended(h)) {
 		memcpy(&__get_cpu_var(mce_data_buf), h, sizeof(__u64));
 		errhdr = (struct rtas_error_log *)&__get_cpu_var(mce_data_buf);
 	} else {
-		int len;
+		int len, error_log_length;
 
-		len = max_t(int, 8+h->extended_log_length, RTAS_ERROR_LOG_MAX);
+		error_log_length = 8 + rtas_error_extended_log_length(h);
+		len = max_t(int, error_log_length, RTAS_ERROR_LOG_MAX);
 		memset(global_mce_data_buf, 0, RTAS_ERROR_LOG_MAX);
 		memcpy(global_mce_data_buf, h, len);
 		errhdr = (struct rtas_error_log *)global_mce_data_buf;
@@ -350,23 +352,24 @@ int pSeries_system_reset_exception(struct pt_regs *regs)
 static int recover_mce(struct pt_regs *regs, struct rtas_error_log *err)
 {
 	int recovered = 0;
+	int disposition = rtas_error_disposition(err);
 
 	if (!(regs->msr & MSR_RI)) {
 		/* If MSR_RI isn't set, we cannot recover */
 		recovered = 0;
 
-	} else if (err->disposition == RTAS_DISP_FULLY_RECOVERED) {
+	} else if (disposition == RTAS_DISP_FULLY_RECOVERED) {
 		/* Platform corrected itself */
 		recovered = 1;
 
-	} else if (err->disposition == RTAS_DISP_LIMITED_RECOVERY) {
+	} else if (disposition == RTAS_DISP_LIMITED_RECOVERY) {
 		/* Platform corrected itself but could be degraded */
 		printk(KERN_ERR "MCE: limited recovery, system may "
 		       "be degraded\n");
 		recovered = 1;
 
 	} else if (user_mode(regs) && !is_global_init(current) &&
-		   err->severity == RTAS_SEVERITY_ERROR_SYNC) {
+		   rtas_error_severity(err) == RTAS_SEVERITY_ERROR_SYNC) {
 
 		/*
 		 * If we received a synchronous error when in userspace
diff --git a/arch/powerpc/platforms/pseries/reconfig.c b/arch/powerpc/platforms/pseries/reconfig.c
index f93cdf55628..1c0a60d9886 100644
--- a/arch/powerpc/platforms/pseries/reconfig.c
+++ b/arch/powerpc/platforms/pseries/reconfig.c
@@ -12,7 +12,6 @@
  */
 
 #include <linux/kernel.h>
-#include <linux/kref.h>
 #include <linux/notifier.h>
 #include <linux/proc_fs.h>
 #include <linux/slab.h>
@@ -70,7 +69,7 @@ static int pSeries_reconfig_add_node(const char *path, struct property *proplist
 
 	np->properties = proplist;
 	of_node_set_flag(np, OF_DYNAMIC);
-	kref_init(&np->kref);
+	of_node_init(np);
 
 	np->parent = derive_parent(path);
 	if (IS_ERR(np->parent)) {
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index 972df0ffd4d..f2f40e64658 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -39,7 +39,6 @@
 #include <linux/irq.h>
 #include <linux/seq_file.h>
 #include <linux/root_dev.h>
-#include <linux/cpuidle.h>
 #include <linux/of.h>
 #include <linux/kexec.h>
 
@@ -356,29 +355,24 @@ early_initcall(alloc_dispatch_log_kmem_cache);
 
 static void pseries_lpar_idle(void)
 {
-	/* This would call on the cpuidle framework, and the back-end pseries
-	 * driver to  go to idle states
+	/*
+	 * Default handler to go into low thread priority and possibly
+	 * low power mode by cedeing processor to hypervisor
 	 */
-	if (cpuidle_idle_call()) {
-		/* On error, execute default handler
-		 * to go into low thread priority and possibly
-		 * low power mode by cedeing processor to hypervisor
-		 */
 
-		/* Indicate to hypervisor that we are idle. */
-		get_lppaca()->idle = 1;
+	/* Indicate to hypervisor that we are idle. */
+	get_lppaca()->idle = 1;
 
-		/*
-		 * Yield the processor to the hypervisor.  We return if
-		 * an external interrupt occurs (which are driven prior
-		 * to returning here) or if a prod occurs from another
-		 * processor. When returning here, external interrupts
-		 * are enabled.
-		 */
-		cede_processor();
+	/*
+	 * Yield the processor to the hypervisor.  We return if
+	 * an external interrupt occurs (which are driven prior
+	 * to returning here) or if a prod occurs from another
+	 * processor. When returning here, external interrupts
+	 * are enabled.
+	 */
+	cede_processor();
 
-		get_lppaca()->idle = 0;
-	}
+	get_lppaca()->idle = 0;
 }
 
 /*
@@ -516,7 +510,11 @@ static void __init pSeries_setup_arch(void)
 static int __init pSeries_init_panel(void)
 {
 	/* Manually leave the kernel version on the panel. */
+#ifdef __BIG_ENDIAN__
 	ppc_md.progress("Linux ppc64\n", 0);
+#else
+	ppc_md.progress("Linux ppc64le\n", 0);
+#endif
 	ppc_md.progress(init_utsname()->version, 0);
 
 	return 0;
@@ -671,7 +669,7 @@ static int __init pseries_probe_fw_features(unsigned long node,
 					    void *data)
 {
 	const char *prop;
-	unsigned long len;
+	int len;
 	static int hypertas_found;
 	static int vec5_found;
 
@@ -704,7 +702,7 @@ static int __init pseries_probe_fw_features(unsigned long node,
 static int __init pSeries_probe(void)
 {
 	unsigned long root = of_get_flat_dt_root();
- 	char *dtype = of_get_flat_dt_prop(root, "device_type", NULL);
+	const char *dtype = of_get_flat_dt_prop(root, "device_type", NULL);
 
  	if (dtype == NULL)
  		return 0;
@@ -812,4 +810,7 @@ define_machine(pseries) {
 #ifdef CONFIG_KEXEC
 	.machine_kexec          = pSeries_machine_kexec,
 #endif
+#ifdef CONFIG_MEMORY_HOTPLUG_SPARSE
+	.memory_block_size	= pseries_memory_block_size,
+#endif
 };
diff --git a/arch/powerpc/platforms/pseries/smp.c b/arch/powerpc/platforms/pseries/smp.c
index 24f58cb0a54..a3555b10c1a 100644
--- a/arch/powerpc/platforms/pseries/smp.c
+++ b/arch/powerpc/platforms/pseries/smp.c
@@ -44,6 +44,7 @@
 #include <asm/xics.h>
 #include <asm/dbell.h>
 #include <asm/plpar_wrappers.h>
+#include <asm/code-patching.h>
 
 #include "pseries.h"
 #include "offline_states.h"
@@ -96,8 +97,8 @@ int smp_query_cpu_stopped(unsigned int pcpu)
 static inline int smp_startup_cpu(unsigned int lcpu)
 {
 	int status;
-	unsigned long start_here = __pa((u32)*((unsigned long *)
-					       generic_secondary_smp_init));
+	unsigned long start_here =
+			__pa(ppc_function_entry(generic_secondary_smp_init));
 	unsigned int pcpu;
 	int start_cpu;
 
diff --git a/arch/powerpc/platforms/pseries/suspend.c b/arch/powerpc/platforms/pseries/suspend.c
index 16a255255d3..b87b97849d4 100644
--- a/arch/powerpc/platforms/pseries/suspend.c
+++ b/arch/powerpc/platforms/pseries/suspend.c
@@ -26,6 +26,7 @@
 #include <asm/mmu.h>
 #include <asm/rtas.h>
 #include <asm/topology.h>
+#include "../../kernel/cacheinfo.h"
 
 static u64 stream_id;
 static struct device suspend_dev;
@@ -79,6 +80,23 @@ static int pseries_suspend_cpu(void)
 }
 
 /**
+ * pseries_suspend_enable_irqs
+ *
+ * Post suspend configuration updates
+ *
+ **/
+static void pseries_suspend_enable_irqs(void)
+{
+	/*
+	 * Update configuration which can be modified based on device tree
+	 * changes during resume.
+	 */
+	cacheinfo_cpu_offline(smp_processor_id());
+	post_mobility_fixup();
+	cacheinfo_cpu_online(smp_processor_id());
+}
+
+/**
  * pseries_suspend_enter - Final phase of hibernation
  *
  * Return value:
@@ -174,7 +192,30 @@ out:
 	return rc;
 }
 
-static DEVICE_ATTR(hibernate, S_IWUSR, NULL, store_hibernate);
+#define USER_DT_UPDATE	0
+#define KERN_DT_UPDATE	1
+
+/**
+ * show_hibernate - Report device tree update responsibilty
+ * @dev:		subsys root device
+ * @attr:		device attribute struct
+ * @buf:		buffer
+ *
+ * Report whether a device tree update is performed by the kernel after a
+ * resume, or if drmgr must coordinate the update from user space.
+ *
+ * Return value:
+ *	0 if drmgr is to initiate update, and 1 otherwise
+ **/
+static ssize_t show_hibernate(struct device *dev,
+			      struct device_attribute *attr,
+			      char *buf)
+{
+	return sprintf(buf, "%d\n", KERN_DT_UPDATE);
+}
+
+static DEVICE_ATTR(hibernate, S_IWUSR | S_IRUGO,
+		   show_hibernate, store_hibernate);
 
 static struct bus_type suspend_subsys = {
 	.name = "power",
@@ -235,6 +276,7 @@ static int __init pseries_suspend_init(void)
 		return rc;
 
 	ppc_md.suspend_disable_cpu = pseries_suspend_cpu;
+	ppc_md.suspend_enable_irqs = pseries_suspend_enable_irqs;
 	suspend_set_ops(&pseries_suspend_ops);
 	return 0;
 }