38 files changed, 274 insertions, 95 deletions

diff --git a/arch/ia64/hp/sim/hpsim_console.c b/arch/ia64/hp/sim/hpsim_console.c
index 6e149c8ab835..01663bc42b1a 100644
--- a/arch/ia64/hp/sim/hpsim_console.c
+++ b/arch/ia64/hp/sim/hpsim_console.c
@@ -21,6 +21,7 @@
 #include <asm/machvec.h>
 #include <asm/pgtable.h>
 #include <asm/sal.h>
+#include <asm/hpsim.h>
 
 #include "hpsim_ssc.h"
 
@@ -28,7 +29,7 @@ static int simcons_init (struct console *, char *);
 static void simcons_write (struct console *, const char *, unsigned);
 static struct tty_driver *simcons_console_device (struct console *, int *);
 
-struct console hpsim_cons = {
+static struct console hpsim_cons = {
         .name =         "simcons",
         .write =        simcons_write,
         .device =       simcons_console_device,
@@ -58,7 +59,18 @@ simcons_write (struct console *cons, const char *buf, unsigned count)
 
 static struct tty_driver *simcons_console_device (struct console *c, int *index)
 {
-        extern struct tty_driver *hp_simserial_driver;
         *index = c->index;
         return hp_simserial_driver;
 }
+
+int simcons_register(void)
+{
+        if (!ia64_platform_is("hpsim"))
+                return 1;
+
+        if (hpsim_cons.flags & CON_ENABLED)
+                return 1;
+
+        register_console(&hpsim_cons);
+        return 0;
+}
diff --git a/arch/ia64/hp/sim/hpsim_setup.c b/arch/ia64/hp/sim/hpsim_setup.c
index f2297192a582..f629e903ebc7 100644
--- a/arch/ia64/hp/sim/hpsim_setup.c
+++ b/arch/ia64/hp/sim/hpsim_setup.c
@@ -21,6 +21,7 @@
 #include <asm/machvec.h>
 #include <asm/pgtable.h>
 #include <asm/sal.h>
+#include <asm/hpsim.h>
 
 #include "hpsim_ssc.h"
 
@@ -41,11 +42,5 @@ hpsim_setup (char **cmdline_p)
 {
         ROOT_DEV = Root_SDA1;           /* default to first SCSI drive */
 
-#ifdef CONFIG_HP_SIMSERIAL_CONSOLE
-        {
-                extern struct console hpsim_cons;
-                if (ia64_platform_is("hpsim"))
-                        register_console(&hpsim_cons);
-        }
-#endif
+        simcons_register();
 }
diff --git a/arch/ia64/hp/sim/simeth.c b/arch/ia64/hp/sim/simeth.c
index f26077a773d5..4017696ada63 100644
--- a/arch/ia64/hp/sim/simeth.c
+++ b/arch/ia64/hp/sim/simeth.c
@@ -22,6 +22,9 @@
 #include <linux/bitops.h>
 #include <asm/system.h>
 #include <asm/irq.h>
+#include <asm/hpsim.h>
+
+#include "hpsim_ssc.h"
 
 #define SIMETH_RECV_MAX 10
 
@@ -35,12 +38,6 @@
 #define SIMETH_FRAME_SIZE       ETH_FRAME_LEN
 
 
-#define SSC_NETDEV_PROBE                100
-#define SSC_NETDEV_SEND                 101
-#define SSC_NETDEV_RECV                 102
-#define SSC_NETDEV_ATTACH               103
-#define SSC_NETDEV_DETACH               104
-
 #define NETWORK_INTR                    8
 
 struct simeth_local {
@@ -124,9 +121,6 @@ simeth_probe (void)
         return r;
 }
 
-extern long ia64_ssc (long, long, long, long, int);
-extern void ia64_ssc_connect_irq (long intr, long irq);
-
 static inline int
 netdev_probe(char *name, unsigned char *ether)
 {
diff --git a/arch/ia64/hp/sim/simscsi.c b/arch/ia64/hp/sim/simscsi.c
index e62694f8ef75..4552a1cf5b33 100644
--- a/arch/ia64/hp/sim/simscsi.c
+++ b/arch/ia64/hp/sim/simscsi.c
@@ -14,6 +14,7 @@
 #include <linux/kernel.h>
 #include <linux/timer.h>
 #include <asm/irq.h>
+#include "hpsim_ssc.h"
 
 #include <scsi/scsi.h>
 #include <scsi/scsi_cmnd.h>
@@ -59,8 +60,6 @@ struct disk_stat {
         unsigned count;
 };
 
-extern long ia64_ssc (long arg0, long arg1, long arg2, long arg3, int nr);
-
 static int desc[16] = {
         -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
 };
diff --git a/arch/ia64/kernel/irq_ia64.c b/arch/ia64/kernel/irq_ia64.c
index c47c8acc96e3..00a4599e5f47 100644
--- a/arch/ia64/kernel/irq_ia64.c
+++ b/arch/ia64/kernel/irq_ia64.c
@@ -82,7 +82,7 @@ struct irq_cfg irq_cfg[NR_IRQS] __read_mostly = {
 };
 
 DEFINE_PER_CPU(int[IA64_NUM_VECTORS], vector_irq) = {
-        [0 ... IA64_NUM_VECTORS - 1] = IA64_SPURIOUS_INT_VECTOR
+        [0 ... IA64_NUM_VECTORS - 1] = -1
 };
 
 static cpumask_t vector_table[IA64_NUM_VECTORS] = {
@@ -179,7 +179,7 @@ static void __clear_irq_vector(int irq)
         domain = cfg->domain;
         cpus_and(mask, cfg->domain, cpu_online_map);
         for_each_cpu_mask(cpu, mask)
-                per_cpu(vector_irq, cpu)[vector] = IA64_SPURIOUS_INT_VECTOR;
+                per_cpu(vector_irq, cpu)[vector] = -1;
         cfg->vector = IRQ_VECTOR_UNASSIGNED;
         cfg->domain = CPU_MASK_NONE;
         irq_status[irq] = IRQ_UNUSED;
@@ -249,7 +249,7 @@ void __setup_vector_irq(int cpu)
 
         /* Clear vector_irq */
         for (vector = 0; vector < IA64_NUM_VECTORS; ++vector)
-                per_cpu(vector_irq, cpu)[vector] = IA64_SPURIOUS_INT_VECTOR;
+                per_cpu(vector_irq, cpu)[vector] = -1;
         /* Mark the inuse vectors */
         for (irq = 0; irq < NR_IRQS; ++irq) {
                 if (!cpu_isset(cpu, irq_cfg[irq].domain))
@@ -432,10 +432,18 @@ ia64_handle_irq (ia64_vector vector, struct pt_regs *regs)
                 } else if (unlikely(IS_RESCHEDULE(vector)))
                         kstat_this_cpu.irqs[vector]++;
                 else {
+                        int irq = local_vector_to_irq(vector);
+
                         ia64_setreg(_IA64_REG_CR_TPR, vector);
                         ia64_srlz_d();
 
-                        generic_handle_irq(local_vector_to_irq(vector));
+                        if (unlikely(irq < 0)) {
+                                printk(KERN_ERR "%s: Unexpected interrupt "
+                                       "vector %d on CPU %d is not mapped "
+                                       "to any IRQ!\n", __FUNCTION__, vector,
+                                       smp_processor_id());
+                        } else
+                                generic_handle_irq(irq);
 
                         /*
                          * Disable interrupts and send EOI:
@@ -483,6 +491,7 @@ void ia64_process_pending_intr(void)
                         kstat_this_cpu.irqs[vector]++;
                 else {
                         struct pt_regs *old_regs = set_irq_regs(NULL);
+                        int irq = local_vector_to_irq(vector);
 
                         ia64_setreg(_IA64_REG_CR_TPR, vector);
                         ia64_srlz_d();
@@ -493,8 +502,15 @@ void ia64_process_pending_intr(void)
                          * it will work. I hope it works!.
                          * Probably could shared code.
                          */
-                        vectors_in_migration[local_vector_to_irq(vector)]=0;
-                        generic_handle_irq(local_vector_to_irq(vector));
+                        if (unlikely(irq < 0)) {
+                                printk(KERN_ERR "%s: Unexpected interrupt "
+                                       "vector %d on CPU %d not being mapped "
+                                       "to any IRQ!!\n", __FUNCTION__, vector,
+                                       smp_processor_id());
+                        } else {
+                                vectors_in_migration[irq]=0;
+                                generic_handle_irq(irq);
+                        }
                         set_irq_regs(old_regs);
 
                         /*
diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c
index 407efea04bf5..9e392a30d197 100644
--- a/arch/ia64/kernel/setup.c
+++ b/arch/ia64/kernel/setup.c
@@ -60,6 +60,7 @@
 #include <asm/smp.h>
 #include <asm/system.h>
 #include <asm/unistd.h>
+#include <asm/hpsim.h>
 
 #if defined(CONFIG_SMP) && (IA64_CPU_SIZE > PAGE_SIZE)
 # error "struct cpuinfo_ia64 too big!"
@@ -389,13 +390,8 @@ early_console_setup (char *cmdline)
         if (!efi_setup_pcdp_console(cmdline))
                 earlycons++;
 #endif
-#ifdef CONFIG_HP_SIMSERIAL_CONSOLE
-        {
-                extern struct console hpsim_cons;
-                register_console(&hpsim_cons);
+        if (!simcons_register())
                 earlycons++;
-        }
-#endif
 
         return (earlycons) ? 0 : -1;
 }
@@ -960,6 +956,11 @@ cpu_init (void)
 
         /* clear TPR & XTP to enable all interrupt classes: */
         ia64_setreg(_IA64_REG_CR_TPR, 0);
+
+        /* Clear any pending interrupts left by SAL/EFI */
+        while (ia64_get_ivr() != IA64_SPURIOUS_INT_VECTOR)
+                ia64_eoi();
+
 #ifdef CONFIG_SMP
         normal_xtp();
 #endif
diff --git a/arch/ia64/kernel/smpboot.c b/arch/ia64/kernel/smpboot.c
index 62209dcf06d3..308772f7cddc 100644
--- a/arch/ia64/kernel/smpboot.c
+++ b/arch/ia64/kernel/smpboot.c
@@ -58,6 +58,7 @@
 #include <asm/system.h>
 #include <asm/tlbflush.h>
 #include <asm/unistd.h>
+#include <asm/sn/arch.h>
 
 #define SMP_DEBUG 0
 
@@ -730,6 +731,11 @@ int __cpu_disable(void)
                 return (-EBUSY);
         }
 
+        if (ia64_platform_is("sn2")) {
+                if (!sn_cpu_disable_allowed(cpu))
+                        return -EBUSY;
+        }
+
         cpu_clear(cpu, cpu_online_map);
 
         if (migrate_platform_irqs(cpu)) {
diff --git a/arch/ia64/mm/contig.c b/arch/ia64/mm/contig.c
index 7ac8592a35b6..d3c538be466c 100644
--- a/arch/ia64/mm/contig.c
+++ b/arch/ia64/mm/contig.c
@@ -17,6 +17,7 @@
 #include <linux/bootmem.h>
 #include <linux/efi.h>
 #include <linux/mm.h>
+#include <linux/nmi.h>
 #include <linux/swap.h>
 
 #include <asm/meminit.h>
@@ -56,6 +57,8 @@ void show_mem(void)
                 present = pgdat->node_present_pages;
                 for(i = 0; i < pgdat->node_spanned_pages; i++) {
                         struct page *page;
+                        if (unlikely(i % MAX_ORDER_NR_PAGES == 0))
+                                touch_nmi_watchdog();
                         if (pfn_valid(pgdat->node_start_pfn + i))
                                 page = pfn_to_page(pgdat->node_start_pfn + i);
                         else {
diff --git a/arch/ia64/mm/discontig.c b/arch/ia64/mm/discontig.c
index 0dbf0e81f8c0..0d34585058c8 100644
--- a/arch/ia64/mm/discontig.c
+++ b/arch/ia64/mm/discontig.c
@@ -16,6 +16,7 @@
 
 #include <linux/kernel.h>
 #include <linux/mm.h>
+#include <linux/nmi.h>
 #include <linux/swap.h>
 #include <linux/bootmem.h>
 #include <linux/acpi.h>
@@ -533,6 +534,8 @@ void show_mem(void)
                 present = pgdat->node_present_pages;
                 for(i = 0; i < pgdat->node_spanned_pages; i++) {
                         struct page *page;
+                        if (unlikely(i % MAX_ORDER_NR_PAGES == 0))
+                                touch_nmi_watchdog();
                         if (pfn_valid(pgdat->node_start_pfn + i))
                                 page = pfn_to_page(pgdat->node_start_pfn + i);
                         else {
diff --git a/arch/ia64/sn/kernel/huberror.c b/arch/ia64/sn/kernel/huberror.c
index 2c3f9dfca78b..b663168da55c 100644
--- a/arch/ia64/sn/kernel/huberror.c
+++ b/arch/ia64/sn/kernel/huberror.c
@@ -185,11 +185,14 @@ void hubiio_crb_error_handler(struct hubdev_info *hubdev_info)
  */
 void hub_error_init(struct hubdev_info *hubdev_info)
 {
+
         if (request_irq(SGI_II_ERROR, hub_eint_handler, IRQF_SHARED,
-                        "SN_hub_error", (void *)hubdev_info))
+                        "SN_hub_error", (void *)hubdev_info)) {
                 printk("hub_error_init: Failed to request_irq for 0x%p\n",
                     hubdev_info);
-        return;
+                return;
+        }
+        sn_set_err_irq_affinity(SGI_II_ERROR);
 }
 
 
@@ -202,11 +205,14 @@ void hub_error_init(struct hubdev_info *hubdev_info)
  */
 void ice_error_init(struct hubdev_info *hubdev_info)
 {
+
         if (request_irq
             (SGI_TIO_ERROR, (void *)hub_eint_handler, IRQF_SHARED, "SN_TIO_error",
-             (void *)hubdev_info))
+             (void *)hubdev_info)) {
                 printk("ice_error_init: request_irq() error hubdev_info 0x%p\n",
                        hubdev_info);
-        return;
+                return;
+        }
+        sn_set_err_irq_affinity(SGI_TIO_ERROR);
 }
 
diff --git a/arch/ia64/sn/kernel/irq.c b/arch/ia64/sn/kernel/irq.c
index 360047389449..0f9b12683bf3 100644
--- a/arch/ia64/sn/kernel/irq.c
+++ b/arch/ia64/sn/kernel/irq.c
@@ -19,6 +19,7 @@
 #include <asm/sn/pcidev.h>
 #include <asm/sn/shub_mmr.h>
 #include <asm/sn/sn_sal.h>
+#include <asm/sn/sn_feature_sets.h>
 
 static void force_interrupt(int irq);
 static void register_intr_pda(struct sn_irq_info *sn_irq_info);
@@ -233,6 +234,20 @@ static void sn_set_affinity_irq(unsigned int irq, cpumask_t mask)
                 (void)sn_retarget_vector(sn_irq_info, nasid, slice);
 }
 
+#ifdef CONFIG_SMP
+void sn_set_err_irq_affinity(unsigned int irq)
+{
+        /*
+         * On systems which support CPU disabling (SHub2), all error interrupts
+         * are targetted at the boot CPU.
+         */
+        if (is_shub2() && sn_prom_feature_available(PRF_CPU_DISABLE_SUPPORT))
+                set_irq_affinity_info(irq, cpu_physical_id(0), 0);
+}
+#else
+void sn_set_err_irq_affinity(unsigned int irq) { }
+#endif
+
 static void
 sn_mask_irq(unsigned int irq)
 {
diff --git a/arch/ia64/sn/kernel/sn2/sn2_smp.c b/arch/ia64/sn/kernel/sn2/sn2_smp.c
index 033c8a9f000e..f3c69329e145 100644
--- a/arch/ia64/sn/kernel/sn2/sn2_smp.c
+++ b/arch/ia64/sn/kernel/sn2/sn2_smp.c
@@ -40,6 +40,7 @@
 #include <asm/sn/shub_mmr.h>
 #include <asm/sn/nodepda.h>
 #include <asm/sn/rw_mmr.h>
+#include <asm/sn/sn_feature_sets.h>
 
 DEFINE_PER_CPU(struct ptc_stats, ptcstats);
 DECLARE_PER_CPU(struct ptc_stats, ptcstats);
@@ -429,6 +430,31 @@ void sn2_send_IPI(int cpuid, int vector, int delivery_mode, int redirect)
         sn_send_IPI_phys(nasid, physid, vector, delivery_mode);
 }
 
+#ifdef CONFIG_HOTPLUG_CPU
+/**
+ * sn_cpu_disable_allowed - Determine if a CPU can be disabled.
+ * @cpu - CPU that is requested to be disabled.
+ *
+ * CPU disable is only allowed on SHub2 systems running with a PROM
+ * that supports CPU disable. It is not permitted to disable the boot processor.
+ */
+bool sn_cpu_disable_allowed(int cpu)
+{
+        if (is_shub2() && sn_prom_feature_available(PRF_CPU_DISABLE_SUPPORT)) {
+                if (cpu != 0)
+                        return true;
+                else
+                        printk(KERN_WARNING
+                              "Disabling the boot processor is not allowed.\n");
+
+        } else
+                printk(KERN_WARNING
+                       "CPU disable is not supported on this system.\n");
+
+        return false;
+}
+#endif /* CONFIG_HOTPLUG_CPU */
+
 #ifdef CONFIG_PROC_FS
 
 #define PTC_BASENAME    "sgi_sn/ptc_statistics"
diff --git a/arch/ia64/sn/kernel/sn2/sn_hwperf.c b/arch/ia64/sn/kernel/sn2/sn_hwperf.c
index df8d5bed6119..1a8e49607f11 100644
--- a/arch/ia64/sn/kernel/sn2/sn_hwperf.c
+++ b/arch/ia64/sn/kernel/sn2/sn_hwperf.c
@@ -66,7 +66,8 @@ static int sn_hwperf_enum_objects(int *nobj, struct sn_hwperf_object_info **ret)
         }
 
         sz = sn_hwperf_obj_cnt * sizeof(struct sn_hwperf_object_info);
-        if ((objbuf = (struct sn_hwperf_object_info *) vmalloc(sz)) == NULL) {
+        objbuf = vmalloc(sz);
+        if (objbuf == NULL) {
                 printk("sn_hwperf_enum_objects: vmalloc(%d) failed\n", (int)sz);
                 e = -ENOMEM;
                 goto out;
diff --git a/arch/ia64/sn/pci/pcibr/pcibr_provider.c b/arch/ia64/sn/pci/pcibr/pcibr_provider.c
index 42485ad50ceb..ab3eaf85fe4d 100644
--- a/arch/ia64/sn/pci/pcibr/pcibr_provider.c
+++ b/arch/ia64/sn/pci/pcibr/pcibr_provider.c
@@ -145,6 +145,7 @@ pcibr_bus_fixup(struct pcibus_bussoft *prom_bussoft, struct pci_controller *cont
                 printk(KERN_WARNING
                        "pcibr cannot allocate interrupt for error handler\n");
         }
+        sn_set_err_irq_affinity(SGI_PCIASIC_ERROR);
 
         /* 
          * Update the Bridge with the "kernel" pagesize 
diff --git a/arch/ia64/sn/pci/tioca_provider.c b/arch/ia64/sn/pci/tioca_provider.c
index d798dd4d0dc4..ef048a674772 100644
--- a/arch/ia64/sn/pci/tioca_provider.c
+++ b/arch/ia64/sn/pci/tioca_provider.c
@@ -654,6 +654,8 @@ tioca_bus_fixup(struct pcibus_bussoft *prom_bussoft, struct pci_controller *cont
                        __FUNCTION__, SGI_TIOCA_ERROR,
                        (int)tioca_common->ca_common.bs_persist_busnum);
 
+        sn_set_err_irq_affinity(SGI_TIOCA_ERROR);
+
         /* Setup locality information */
         controller->node = tioca_kern->ca_closest_node;
         return tioca_common;
diff --git a/arch/ia64/sn/pci/tioce_provider.c b/arch/ia64/sn/pci/tioce_provider.c
index 84b72b27e27f..cee9379d44e0 100644
--- a/arch/ia64/sn/pci/tioce_provider.c
+++ b/arch/ia64/sn/pci/tioce_provider.c
@@ -1034,6 +1034,7 @@ tioce_bus_fixup(struct pcibus_bussoft *prom_bussoft, struct pci_controller *cont
                        tioce_common->ce_pcibus.bs_persist_segment,
                        tioce_common->ce_pcibus.bs_persist_busnum);
 
+        sn_set_err_irq_affinity(SGI_PCIASIC_ERROR);
         return tioce_common;
 }
 
diff --git a/arch/powerpc/kernel/ibmebus.c b/arch/powerpc/kernel/ibmebus.c
index 9a8c9af43b22..d6a38cd5018e 100644
--- a/arch/powerpc/kernel/ibmebus.c
+++ b/arch/powerpc/kernel/ibmebus.c
@@ -188,33 +188,21 @@ static struct ibmebus_dev* __devinit ibmebus_register_device_node(
         struct device_node *dn)
 {
         struct ibmebus_dev *dev;
-        const char *loc_code;
-        int length;
-
-        loc_code = of_get_property(dn, "ibm,loc-code", NULL);
-        if (!loc_code) {
-                printk(KERN_WARNING "%s: node %s missing 'ibm,loc-code'\n",
-                       __FUNCTION__, dn->name ? dn->name : "<unknown>");
-                return ERR_PTR(-EINVAL);
-        }
-
-        if (strlen(loc_code) == 0) {
-                printk(KERN_WARNING "%s: 'ibm,loc-code' is invalid\n",
-                       __FUNCTION__);
-                return ERR_PTR(-EINVAL);
-        }
+        int i, len, bus_len;
 
         dev = kzalloc(sizeof(struct ibmebus_dev), GFP_KERNEL);
-        if (!dev) {
+        if (!dev)
                 return ERR_PTR(-ENOMEM);
-        }
 
         dev->ofdev.node = of_node_get(dn);
 
-        length = strlen(loc_code);
-        memcpy(dev->ofdev.dev.bus_id, loc_code
-                + (length - min(length, BUS_ID_SIZE - 1)),
-                min(length, BUS_ID_SIZE - 1));
+        len = strlen(dn->full_name + 1);
+        bus_len = min(len, BUS_ID_SIZE - 1);
+        memcpy(dev->ofdev.dev.bus_id, dn->full_name + 1
+               + (len - bus_len), bus_len);
+        for (i = 0; i < bus_len; i++)
+                if (dev->ofdev.dev.bus_id[i] == '/')
+                        dev->ofdev.dev.bus_id[i] = '_';
 
         /* Register with generic device framework. */
         if (ibmebus_register_device_common(dev, dn->name) != 0) {
diff --git a/arch/powerpc/platforms/cell/spu_base.c b/arch/powerpc/platforms/cell/spu_base.c
index 095a30304c56..106d2921e2d9 100644
--- a/arch/powerpc/platforms/cell/spu_base.c
+++ b/arch/powerpc/platforms/cell/spu_base.c
@@ -236,27 +236,34 @@ static irqreturn_t
 spu_irq_class_0(int irq, void *data)
 {
         struct spu *spu;
+        unsigned long stat, mask;
 
         spu = data;
-        spu->class_0_pending = 1;
+
+        mask = spu_int_mask_get(spu, 0);
+        stat = spu_int_stat_get(spu, 0);
+        stat &= mask;
+
+        spin_lock(&spu->register_lock);
+        spu->class_0_pending |= stat;
+        spin_unlock(&spu->register_lock);
+
         spu->stop_callback(spu);
 
+        spu_int_stat_clear(spu, 0, stat);
+
         return IRQ_HANDLED;
 }
 
 int
 spu_irq_class_0_bottom(struct spu *spu)
 {
-        unsigned long stat, mask;
         unsigned long flags;
-
-        spu->class_0_pending = 0;
+        unsigned long stat;
 
         spin_lock_irqsave(&spu->register_lock, flags);
-        mask = spu_int_mask_get(spu, 0);
-        stat = spu_int_stat_get(spu, 0);
-
-        stat &= mask;
+        stat = spu->class_0_pending;
+        spu->class_0_pending = 0;
 
         if (stat & 1) /* invalid DMA alignment */
                 __spu_trap_dma_align(spu);
@@ -267,7 +274,6 @@ spu_irq_class_0_bottom(struct spu *spu)
         if (stat & 4) /* error on SPU */
                 __spu_trap_error(spu);
 
-        spu_int_stat_clear(spu, 0, stat);
         spin_unlock_irqrestore(&spu->register_lock, flags);
 
         return (stat & 0x7) ? -EIO : 0;
diff --git a/arch/powerpc/platforms/ps3/platform.h b/arch/powerpc/platforms/ps3/platform.h
index 87d52060fec0..2eb8f92704b4 100644
--- a/arch/powerpc/platforms/ps3/platform.h
+++ b/arch/powerpc/platforms/ps3/platform.h
@@ -83,6 +83,7 @@ enum ps3_dev_type {
         PS3_DEV_TYPE_STOR_ROM = TYPE_ROM,       /* 5 */
         PS3_DEV_TYPE_SB_GPIO = 6,
         PS3_DEV_TYPE_STOR_FLASH = TYPE_RBC,     /* 14 */
+        PS3_DEV_TYPE_STOR_DUMMY = 32,
         PS3_DEV_TYPE_NOACCESS = 255,
 };
 
diff --git a/arch/powerpc/platforms/ps3/repository.c b/arch/powerpc/platforms/ps3/repository.c
index 8cc37cfea0f2..1c94824f7b63 100644
--- a/arch/powerpc/platforms/ps3/repository.c
+++ b/arch/powerpc/platforms/ps3/repository.c
@@ -349,6 +349,35 @@ int ps3_repository_find_device(struct ps3_repository_device *repo)
                 return result;
         }
 
+        if (tmp.bus_type == PS3_BUS_TYPE_STORAGE) {
+                /*
+                 * A storage device may show up in the repository before the
+                 * hypervisor has finished probing its type and regions
+                 */
+                unsigned int num_regions;
+
+                if (tmp.dev_type == PS3_DEV_TYPE_STOR_DUMMY) {
+                        pr_debug("%s:%u storage device not ready\n", __func__,
+                                 __LINE__);
+                        return -ENODEV;
+                }
+
+                result = ps3_repository_read_stor_dev_num_regions(tmp.bus_index,
+                                                                  tmp.dev_index,
+                                                                  &num_regions);
+                if (result) {
+                        pr_debug("%s:%d read_stor_dev_num_regions failed\n",
+                                 __func__, __LINE__);
+                        return result;
+                }
+
+                if (!num_regions) {
+                        pr_debug("%s:%u storage device has no regions yet\n",
+                                 __func__, __LINE__);
+                        return -ENODEV;
+                }
+        }
+
         result = ps3_repository_read_dev_id(tmp.bus_index, tmp.dev_index,
                 &tmp.dev_id);
 
diff --git a/arch/powerpc/platforms/ps3/spu.c b/arch/powerpc/platforms/ps3/spu.c
index ac2a4b8a4c14..d1630a074acf 100644
--- a/arch/powerpc/platforms/ps3/spu.c
+++ b/arch/powerpc/platforms/ps3/spu.c
@@ -505,6 +505,8 @@ static void mfc_sr1_set(struct spu *spu, u64 sr1)
         static const u64 allowed = ~(MFC_STATE1_LOCAL_STORAGE_DECODE_MASK
                 | MFC_STATE1_PROBLEM_STATE_MASK);
 
+        sr1 |= MFC_STATE1_MASTER_RUN_CONTROL_MASK;
+
         BUG_ON((sr1 & allowed) != (spu_pdata(spu)->cache.sr1 & allowed));
 
         spu_pdata(spu)->cache.sr1 = sr1;
diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
index e40c94f5f59d..3b8bf1812dc8 100644
--- a/drivers/ata/ata_piix.c
+++ b/drivers/ata/ata_piix.c
@@ -955,7 +955,8 @@ static int piix_broken_suspend(void)
                                 DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE M500"),
                         },
                 },
-                { }
+
+                { }     /* terminate list */
         };
         static const char *oemstrs[] = {
                 "Tecra M3,",
@@ -1187,6 +1188,8 @@ static void piix_iocfg_bit18_quirk(struct pci_dev *pdev)
                                 DMI_MATCH(DMI_PRODUCT_NAME, "M570U"),
                         },
                 },
+
+                { }     /* terminate list */
         };
         u32 iocfg;
 
diff --git a/drivers/ata/sata_via.c b/drivers/ata/sata_via.c
index a4e631766eee..57fd30de8f0d 100644
--- a/drivers/ata/sata_via.c
+++ b/drivers/ata/sata_via.c
@@ -371,7 +371,7 @@ static void vt6421_set_dma_mode(struct ata_port *ap, struct ata_device *adev)
 {
         struct pci_dev *pdev = to_pci_dev(ap->host->dev);
         static const u8 udma_bits[] = { 0xEE, 0xE8, 0xE6, 0xE4, 0xE2, 0xE1, 0xE0, 0xE0 };
-        pci_write_config_byte(pdev, PATA_UDMA_TIMING, udma_bits[adev->pio_mode - XFER_UDMA_0]);
+        pci_write_config_byte(pdev, PATA_UDMA_TIMING, udma_bits[adev->dma_mode - XFER_UDMA_0]);
 }
 
 static const unsigned int svia_bar_sizes[] = {
diff --git a/drivers/mtd/mtdsuper.c b/drivers/mtd/mtdsuper.c
index aca331971201..9b430f20b640 100644
--- a/drivers/mtd/mtdsuper.c
+++ b/drivers/mtd/mtdsuper.c
@@ -70,6 +70,8 @@ static int get_sb_mtd_aux(struct file_system_type *fs_type, int flags,
         DEBUG(1, "MTDSB: New superblock for device %d (\"%s\")\n",
               mtd->index, mtd->name);
 
+        sb->s_flags = flags;
+
         ret = fill_super(sb, data, flags & MS_SILENT ? 1 : 0);
         if (ret < 0) {
                 up_write(&sb->s_umount);
diff --git a/fs/jffs2/fs.c b/fs/jffs2/fs.c
index 1d3b7a9fc828..8bc727b71696 100644
--- a/fs/jffs2/fs.c
+++ b/fs/jffs2/fs.c
@@ -627,7 +627,7 @@ unsigned char *jffs2_gc_fetch_page(struct jffs2_sb_info *c,
         struct inode *inode = OFNI_EDONI_2SFFJ(f);
         struct page *pg;
 
-        pg = read_cache_page(inode->i_mapping, offset >> PAGE_CACHE_SHIFT,
+        pg = read_cache_page_async(inode->i_mapping, offset >> PAGE_CACHE_SHIFT,
                              (void *)jffs2_do_readpage_unlock, inode);
         if (IS_ERR(pg))
                 return (void *)pg;
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index c87dc713b5d7..579cf8a7d4a7 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -316,7 +316,7 @@ static void nfs_invalidate_page(struct page *page, unsigned long offset)
         if (offset != 0)
                 return;
         /* Cancel any unstarted writes on this page */
-        nfs_wb_page_priority(page->mapping->host, page, FLUSH_INVALIDATE);
+        nfs_wb_page_cancel(page->mapping->host, page);
 }
 
 static int nfs_release_page(struct page *page, gfp_t gfp)
diff --git a/fs/nfs/namespace.c b/fs/nfs/namespace.c
index aea76d0e5fbd..acfc56f9edc0 100644
--- a/fs/nfs/namespace.c
+++ b/fs/nfs/namespace.c
@@ -176,7 +176,7 @@ static void nfs_expire_automounts(struct work_struct *work)
 void nfs_release_automount_timer(void)
 {
         if (list_empty(&nfs_automount_list))
-                cancel_delayed_work_sync(&nfs_automount_task);
+                cancel_delayed_work(&nfs_automount_task);
 }
 
 /*
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 62b3ae280310..4b90e17555a9 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -646,7 +646,7 @@ static int _nfs4_do_open_reclaim(struct nfs_open_context *ctx, struct nfs4_state
         rcu_read_lock();
         delegation = rcu_dereference(NFS_I(state->inode)->delegation);
         if (delegation != NULL && (delegation->flags & NFS_DELEGATION_NEED_RECLAIM) != 0)
-                delegation_type = delegation->flags;
+                delegation_type = delegation->type;
         rcu_read_unlock();
         opendata->o_arg.u.delegation_type = delegation_type;
         status = nfs4_open_recover(opendata, state);
@@ -1434,7 +1434,7 @@ nfs4_atomic_open(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
         }
         res = d_add_unique(dentry, igrab(state->inode));
         if (res != NULL)
-                dentry = res;
+                path.dentry = res;
         nfs4_intent_set_file(nd, &path, state);
         return res;
 }
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 46139003ea0c..8ed593766f16 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -911,13 +911,13 @@ static int nfs_parse_mount_options(char *raw,
                         kfree(string);
 
                         switch (token) {
-                        case Opt_udp:
+                        case Opt_xprt_udp:
                                 mnt->flags &= ~NFS_MOUNT_TCP;
                                 mnt->nfs_server.protocol = IPPROTO_UDP;
                                 mnt->timeo = 7;
                                 mnt->retrans = 5;
                                 break;
-                        case Opt_tcp:
+                        case Opt_xprt_tcp:
                                 mnt->flags |= NFS_MOUNT_TCP;
                                 mnt->nfs_server.protocol = IPPROTO_TCP;
                                 mnt->timeo = 600;
@@ -936,10 +936,10 @@ static int nfs_parse_mount_options(char *raw,
                         kfree(string);
 
                         switch (token) {
-                        case Opt_udp:
+                        case Opt_xprt_udp:
                                 mnt->mount_server.protocol = IPPROTO_UDP;
                                 break;
-                        case Opt_tcp:
+                        case Opt_xprt_tcp:
                                 mnt->mount_server.protocol = IPPROTO_TCP;
                                 break;
                         default:
@@ -1153,20 +1153,20 @@ static int nfs_validate_mount_data(struct nfs_mount_data **options,
                 c = strchr(dev_name, ':');
                 if (c == NULL)
                         return -EINVAL;
-                len = c - dev_name - 1;
+                len = c - dev_name;
                 if (len > sizeof(data->hostname))
-                        return -EINVAL;
+                        return -ENAMETOOLONG;
                 strncpy(data->hostname, dev_name, len);
                 args.nfs_server.hostname = data->hostname;
 
                 c++;
                 if (strlen(c) > NFS_MAXPATHLEN)
-                        return -EINVAL;
+                        return -ENAMETOOLONG;
                 args.nfs_server.export_path = c;
 
                 status = nfs_try_mount(&args, mntfh);
                 if (status)
-                        return -EINVAL;
+                        return status;
 
                 /*
                  * Translate to nfs_mount_data, which nfs_fill_super
@@ -1677,7 +1677,7 @@ static int nfs4_validate_mount_data(struct nfs4_mount_data **options,
                 /* while calculating len, pretend ':' is '\0' */
                 len = c - dev_name;
                 if (len > NFS4_MAXNAMLEN)
-                        return -EINVAL;
+                        return -ENAMETOOLONG;
                 *hostname = kzalloc(len, GFP_KERNEL);
                 if (*hostname == NULL)
                         return -ENOMEM;
@@ -1686,7 +1686,7 @@ static int nfs4_validate_mount_data(struct nfs4_mount_data **options,
                 c++;                    /* step over the ':' */
                 len = strlen(c);
                 if (len > NFS4_MAXPATHLEN)
-                        return -EINVAL;
+                        return -ENAMETOOLONG;
                 *mntpath = kzalloc(len + 1, GFP_KERNEL);
                 if (*mntpath == NULL)
                         return -ENOMEM;
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index ef97e0c0f5b1..0d7a77cc394b 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -1396,6 +1396,50 @@ out:
         return ret;
 }
 
+int nfs_wb_page_cancel(struct inode *inode, struct page *page)
+{
+        struct nfs_page *req;
+        loff_t range_start = page_offset(page);
+        loff_t range_end = range_start + (loff_t)(PAGE_CACHE_SIZE - 1);
+        struct writeback_control wbc = {
+                .bdi = page->mapping->backing_dev_info,
+                .sync_mode = WB_SYNC_ALL,
+                .nr_to_write = LONG_MAX,
+                .range_start = range_start,
+                .range_end = range_end,
+        };
+        int ret = 0;
+
+        BUG_ON(!PageLocked(page));
+        for (;;) {
+                req = nfs_page_find_request(page);
+                if (req == NULL)
+                        goto out;
+                if (test_bit(PG_NEED_COMMIT, &req->wb_flags)) {
+                        nfs_release_request(req);
+                        break;
+                }
+                if (nfs_lock_request_dontget(req)) {
+                        nfs_inode_remove_request(req);
+                        /*
+                         * In case nfs_inode_remove_request has marked the
+                         * page as being dirty
+                         */
+                        cancel_dirty_page(page, PAGE_CACHE_SIZE);
+                        nfs_unlock_request(req);
+                        break;
+                }
+                ret = nfs_wait_on_request(req);
+                if (ret < 0)
+                        goto out;
+        }
+        if (!PagePrivate(page))
+                return 0;
+        ret = nfs_sync_mapping_wait(page->mapping, &wbc, FLUSH_INVALIDATE);
+out:
+        return ret;
+}
+
 int nfs_wb_page_priority(struct inode *inode, struct page *page, int how)
 {
         loff_t range_start = page_offset(page);
diff --git a/include/asm-ia64/hpsim.h b/include/asm-ia64/hpsim.h
new file mode 100644
index 000000000000..892ab198a9da
--- /dev/null
+++ b/include/asm-ia64/hpsim.h
@@ -0,0 +1,16 @@
+#ifndef _ASMIA64_HPSIM_H
+#define _ASMIA64_HPSIM_H
+
+#ifndef CONFIG_HP_SIMSERIAL_CONSOLE
+static inline int simcons_register(void) { return 1; }
+#else
+int simcons_register(void);
+#endif
+
+struct tty_driver;
+extern struct tty_driver *hp_simserial_driver;
+
+void ia64_ssc_connect_irq(long intr, long irq);
+void ia64_ctl_trace(long on);
+
+#endif
diff --git a/include/asm-ia64/sn/arch.h b/include/asm-ia64/sn/arch.h
index 16adc93d7a72..7caa1f44cd95 100644
--- a/include/asm-ia64/sn/arch.h
+++ b/include/asm-ia64/sn/arch.h
@@ -81,5 +81,6 @@ extern u8 sn_sharing_domain_size;
 extern u8 sn_region_size;
 
 extern void sn_flush_all_caches(long addr, long bytes);
+extern bool sn_cpu_disable_allowed(int cpu);
 
 #endif /* _ASM_IA64_SN_ARCH_H */
diff --git a/include/asm-ia64/sn/intr.h b/include/asm-ia64/sn/intr.h
index 12b54ddb06be..e0487aa97418 100644
--- a/include/asm-ia64/sn/intr.h
+++ b/include/asm-ia64/sn/intr.h
@@ -60,6 +60,7 @@ extern u64 sn_intr_alloc(nasid_t, int,
                               int, nasid_t, int);
 extern void sn_intr_free(nasid_t, int, struct sn_irq_info *);
 extern struct sn_irq_info *sn_retarget_vector(struct sn_irq_info *, nasid_t, int);
+extern void sn_set_err_irq_affinity(unsigned int);
 extern struct list_head **sn_irq_lh;
 
 #define CPU_VECTOR_TO_IRQ(cpuid,vector) (vector)
diff --git a/include/asm-ia64/sn/sn_feature_sets.h b/include/asm-ia64/sn/sn_feature_sets.h
index bfdc36273ed4..8e83ac117ace 100644
--- a/include/asm-ia64/sn/sn_feature_sets.h
+++ b/include/asm-ia64/sn/sn_feature_sets.h
@@ -31,6 +31,7 @@ extern int sn_prom_feature_available(int id);
 #define PRF_PAL_CACHE_FLUSH_SAFE        0
 #define PRF_DEVICE_FLUSH_LIST           1
 #define PRF_HOTPLUG_SUPPORT             2
+#define PRF_CPU_DISABLE_SUPPORT         3
 
 /* --------------------- OS Features -------------------------------*/
 
diff --git a/include/asm-powerpc/spu.h b/include/asm-powerpc/spu.h
index 8836c0f1f2f7..5bde3980bf49 100644
--- a/include/asm-powerpc/spu.h
+++ b/include/asm-powerpc/spu.h
@@ -130,6 +130,7 @@ struct spu {
         u64 flags;
         u64 dar;
         u64 dsisr;
+        u64 class_0_pending;
         size_t ls_size;
         unsigned int slb_replace;
         struct mm_struct *mm;
@@ -138,7 +139,6 @@ struct spu {
         unsigned long long timestamp;
         pid_t pid;
         pid_t tgid;
-        int class_0_pending;
         spinlock_t register_lock;
 
         void (* wbox_callback)(struct spu *spu);
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index 157dcb055b5c..7250eeadd7b5 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -431,6 +431,7 @@ extern int nfs_sync_mapping_range(struct address_space *, loff_t, loff_t, int);
 extern int nfs_wb_all(struct inode *inode);
 extern int nfs_wb_page(struct inode *inode, struct page* page);
 extern int nfs_wb_page_priority(struct inode *inode, struct page* page, int how);
+extern int nfs_wb_page_cancel(struct inode *inode, struct page* page);
 #if defined(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4)
 extern int  nfs_commit_inode(struct inode *, int);
 extern struct nfs_write_data *nfs_commit_alloc(void);
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 1ee72127462b..bbad2cdb74b7 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -560,7 +560,7 @@ static u32 tcp_rto_min(struct sock *sk)
         struct dst_entry *dst = __sk_dst_get(sk);
         u32 rto_min = TCP_RTO_MIN;
 
-        if (dst_metric_locked(dst, RTAX_RTO_MIN))
+        if (dst && dst_metric_locked(dst, RTAX_RTO_MIN))
                 rto_min = dst->metrics[RTAX_RTO_MIN-1];
         return rto_min;
 }
diff --git a/scripts/kconfig/conf.c b/scripts/kconfig/conf.c
index 8be6a4269e63..a38787a881ea 100644
--- a/scripts/kconfig/conf.c
+++ b/scripts/kconfig/conf.c
@@ -72,7 +72,7 @@ static void check_stdin(void)
         }
 }
 
-static void conf_askvalue(struct symbol *sym, const char *def)
+static int conf_askvalue(struct symbol *sym, const char *def)
 {
         enum symbol_type type = sym_get_type(sym);
         tristate val;
@@ -87,7 +87,7 @@ static void conf_askvalue(struct symbol *sym, const char *def)
                 printf("%s\n", def);
                 line[0] = '\n';
                 line[1] = 0;
-                return;
+                return 0;
         }
 
         switch (input_mode) {
@@ -97,23 +97,23 @@ static void conf_askvalue(struct symbol *sym, const char *def)
         case set_random:
                 if (sym_has_value(sym)) {
                         printf("%s\n", def);
-                        return;
+                        return 0;
                 }
                 break;
         case ask_new:
         case ask_silent:
                 if (sym_has_value(sym)) {
                         printf("%s\n", def);
-                        return;
+                        return 0;
                 }
                 check_stdin();
         case ask_all:
                 fflush(stdout);
                 fgets(line, 128, stdin);
-                return;
+                return 1;
         case set_default:
                 printf("%s\n", def);
-                return;
+                return 1;
         default:
                 break;
         }
@@ -123,7 +123,7 @@ static void conf_askvalue(struct symbol *sym, const char *def)
         case S_HEX:
         case S_STRING:
                 printf("%s\n", def);
-                return;
+                return 1;
         default:
                 ;
         }
@@ -174,6 +174,7 @@ static void conf_askvalue(struct symbol *sym, const char *def)
                 break;
         }
         printf("%s", line);
+        return 1;
 }
 
 int conf_string(struct menu *menu)
@@ -187,7 +188,8 @@ int conf_string(struct menu *menu)
                 def = sym_get_string_value(sym);
                 if (sym_get_string_value(sym))
                         printf("[%s] ", def);
-                conf_askvalue(sym, def);
+                if (!conf_askvalue(sym, def))
+                        return 0;
                 switch (line[0]) {
                 case '\n':
                         break;
@@ -240,7 +242,8 @@ static int conf_sym(struct menu *menu)
                 if (menu_has_help(menu))
                         printf("/?");
                 printf("] ");
-                conf_askvalue(sym, sym_get_string_value(sym));
+                if (!conf_askvalue(sym, sym_get_string_value(sym)))
+                        return 0;
                 strip(line);
 
                 switch (line[0]) {