Merge commit 'v2.6.39-rc4' into sched/core

Merge reason: Pick up upstream fixes.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

64 files changed, 310 insertions, 150 deletions

diff --git a/arch/alpha/kernel/Makefile b/arch/alpha/kernel/Makefile
index 9bb7b858ed23..7a6d908bb865 100644
--- a/arch/alpha/kernel/Makefile
+++ b/arch/alpha/kernel/Makefile
@@ -4,7 +4,7 @@
 
 extra-y         := head.o vmlinux.lds
 asflags-y       := $(KBUILD_CFLAGS)
-ccflags-y       := -Werror -Wno-sign-compare
+ccflags-y       := -Wno-sign-compare
 
 obj-y    := entry.o traps.o process.o init_task.o osf_sys.o irq.o \
             irq_alpha.o signal.o setup.o ptrace.o time.o \
diff --git a/arch/alpha/kernel/core_mcpcia.c b/arch/alpha/kernel/core_mcpcia.c
index 381fec0af52e..da7bcc372f16 100644
--- a/arch/alpha/kernel/core_mcpcia.c
+++ b/arch/alpha/kernel/core_mcpcia.c
@@ -88,7 +88,7 @@ conf_read(unsigned long addr, unsigned char type1,
 {
         unsigned long flags;
         unsigned long mid = MCPCIA_HOSE2MID(hose->index);
-        unsigned int stat0, value, temp, cpu;
+        unsigned int stat0, value, cpu;
 
         cpu = smp_processor_id();
 
@@ -101,7 +101,7 @@ conf_read(unsigned long addr, unsigned char type1,
         stat0 = *(vuip)MCPCIA_CAP_ERR(mid);
         *(vuip)MCPCIA_CAP_ERR(mid) = stat0;
         mb();
-        temp = *(vuip)MCPCIA_CAP_ERR(mid);
+        *(vuip)MCPCIA_CAP_ERR(mid);
         DBG_CFG(("conf_read: MCPCIA_CAP_ERR(%d) was 0x%x\n", mid, stat0));
 
         mb();
@@ -136,7 +136,7 @@ conf_write(unsigned long addr, unsigned int value, unsigned char type1,
 {
         unsigned long flags;
         unsigned long mid = MCPCIA_HOSE2MID(hose->index);
-        unsigned int stat0, temp, cpu;
+        unsigned int stat0, cpu;
 
         cpu = smp_processor_id();
 
@@ -145,7 +145,7 @@ conf_write(unsigned long addr, unsigned int value, unsigned char type1,
         /* Reset status register to avoid losing errors.  */
         stat0 = *(vuip)MCPCIA_CAP_ERR(mid);
         *(vuip)MCPCIA_CAP_ERR(mid) = stat0; mb();
-        temp = *(vuip)MCPCIA_CAP_ERR(mid);
+        *(vuip)MCPCIA_CAP_ERR(mid);
         DBG_CFG(("conf_write: MCPCIA CAP_ERR(%d) was 0x%x\n", mid, stat0));
 
         draina();
@@ -157,7 +157,7 @@ conf_write(unsigned long addr, unsigned int value, unsigned char type1,
         *((vuip)addr) = value;
         mb();
         mb();  /* magic */
-        temp = *(vuip)MCPCIA_CAP_ERR(mid); /* read to force the write */
+        *(vuip)MCPCIA_CAP_ERR(mid); /* read to force the write */
         mcheck_expected(cpu) = 0;
         mb();
 
@@ -572,12 +572,10 @@ mcpcia_print_system_area(unsigned long la_ptr)
 void
 mcpcia_machine_check(unsigned long vector, unsigned long la_ptr)
 {
-        struct el_common *mchk_header;
         struct el_MCPCIA_uncorrected_frame_mcheck *mchk_logout;
         unsigned int cpu = smp_processor_id();
         int expected;
 
-        mchk_header = (struct el_common *)la_ptr;
         mchk_logout = (struct el_MCPCIA_uncorrected_frame_mcheck *)la_ptr;
         expected = mcheck_expected(cpu);
 
diff --git a/arch/alpha/kernel/err_titan.c b/arch/alpha/kernel/err_titan.c
index c3b3781a03de..14b26c466c89 100644
--- a/arch/alpha/kernel/err_titan.c
+++ b/arch/alpha/kernel/err_titan.c
@@ -533,8 +533,6 @@ static struct el_subpacket_annotation el_titan_annotations[] = {
 static struct el_subpacket *
 el_process_regatta_subpacket(struct el_subpacket *header)
 {
-        int status;
-
         if (header->class != EL_CLASS__REGATTA_FAMILY) {
                 printk("%s  ** Unexpected header CLASS %d TYPE %d, aborting\n",
                        err_print_prefix,
@@ -551,7 +549,7 @@ el_process_regatta_subpacket(struct el_subpacket *header)
                 printk("%s  ** Occurred on CPU %d:\n", 
                        err_print_prefix,
                        (int)header->by_type.regatta_frame.cpuid);
-                status = privateer_process_logout_frame((struct el_common *)
+                privateer_process_logout_frame((struct el_common *)
                         header->by_type.regatta_frame.data_start, 1);
                 break;
         default:
diff --git a/arch/alpha/kernel/irq_alpha.c b/arch/alpha/kernel/irq_alpha.c
index 1479dc6ebd97..51b7fbd9e4c1 100644
--- a/arch/alpha/kernel/irq_alpha.c
+++ b/arch/alpha/kernel/irq_alpha.c
@@ -228,7 +228,7 @@ struct irqaction timer_irqaction = {
 void __init
 init_rtc_irq(void)
 {
-        irq_set_chip_and_handler_name(RTC_IRQ, &no_irq_chip,
+        irq_set_chip_and_handler_name(RTC_IRQ, &dummy_irq_chip,
                                       handle_simple_irq, "RTC");
         setup_irq(RTC_IRQ, &timer_irqaction);
 }
diff --git a/arch/alpha/kernel/setup.c b/arch/alpha/kernel/setup.c
index d2634e4476b4..edbddcbd5bc6 100644
--- a/arch/alpha/kernel/setup.c
+++ b/arch/alpha/kernel/setup.c
@@ -1404,8 +1404,6 @@ determine_cpu_caches (unsigned int cpu_type)
         case PCA56_CPU:
         case PCA57_CPU:
           {
-                unsigned long cbox_config, size;
-
                 if (cpu_type == PCA56_CPU) {
                         L1I = CSHAPE(16*1024, 6, 1);
                         L1D = CSHAPE(8*1024, 5, 1);
@@ -1415,10 +1413,12 @@ determine_cpu_caches (unsigned int cpu_type)
                 }
                 L3 = -1;
 
+#if 0
+                unsigned long cbox_config, size;
+
                 cbox_config = *(vulp) phys_to_virt (0xfffff00008UL);
                 size = 512*1024 * (1 << ((cbox_config >> 12) & 3));
 
-#if 0
                 L2 = ((cbox_config >> 31) & 1 ? CSHAPE (size, 6, 1) : -1);
 #else
                 L2 = external_cache_probe(512*1024, 6);
diff --git a/arch/alpha/kernel/smc37c93x.c b/arch/alpha/kernel/smc37c93x.c
index 3e6a2893af9f..6886b834f487 100644
--- a/arch/alpha/kernel/smc37c93x.c
+++ b/arch/alpha/kernel/smc37c93x.c
@@ -79,7 +79,6 @@
 static unsigned long __init SMCConfigState(unsigned long baseAddr)
 {
         unsigned char devId;
-        unsigned char devRev;
 
         unsigned long configPort;
         unsigned long indexPort;
@@ -100,7 +99,7 @@ static unsigned long __init SMCConfigState(unsigned long baseAddr)
                 devId = inb(dataPort);
                 if (devId == VALID_DEVICE_ID) {
                         outb(DEVICE_REV, indexPort);
-                        devRev = inb(dataPort);
+                        /* unsigned char devRev = */ inb(dataPort);
                         break;
                 }
                 else
diff --git a/arch/alpha/kernel/sys_wildfire.c b/arch/alpha/kernel/sys_wildfire.c
index d3cb28bb8eb0..d92cdc715c65 100644
--- a/arch/alpha/kernel/sys_wildfire.c
+++ b/arch/alpha/kernel/sys_wildfire.c
@@ -156,7 +156,6 @@ static void __init
 wildfire_init_irq_per_pca(int qbbno, int pcano)
 {
         int i, irq_bias;
-        unsigned long io_bias;
         static struct irqaction isa_enable = {
                 .handler        = no_action,
                 .name           = "isa_enable",
@@ -165,10 +164,12 @@ wildfire_init_irq_per_pca(int qbbno, int pcano)
         irq_bias = qbbno * (WILDFIRE_PCA_PER_QBB * WILDFIRE_IRQ_PER_PCA)
                  + pcano * WILDFIRE_IRQ_PER_PCA;
 
+#if 0
+        unsigned long io_bias;
+
         /* Only need the following for first PCI bus per PCA. */
         io_bias = WILDFIRE_IO(qbbno, pcano<<1) - WILDFIRE_IO_BIAS;
 
-#if 0
         outb(0, DMA1_RESET_REG + io_bias);
         outb(0, DMA2_RESET_REG + io_bias);
         outb(DMA_MODE_CASCADE, DMA2_MODE_REG + io_bias);
diff --git a/arch/alpha/kernel/time.c b/arch/alpha/kernel/time.c
index a58e84f1a63b..918e8e0b72ff 100644
--- a/arch/alpha/kernel/time.c
+++ b/arch/alpha/kernel/time.c
@@ -153,6 +153,7 @@ void read_persistent_clock(struct timespec *ts)
                 year += 100;
 
         ts->tv_sec = mktime(year, mon, day, hour, min, sec);
+        ts->tv_nsec = 0;
 }
 
 
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index fdc9d4dbf85b..377a7a595b08 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1540,7 +1540,6 @@ config HIGHMEM
 config HIGHPTE
         bool "Allocate 2nd-level pagetables from highmem"
         depends on HIGHMEM
-        depends on !OUTER_CACHE
 
 config HW_PERF_EVENTS
         bool "Enable hardware performance counter support for perf events"
@@ -2012,6 +2011,8 @@ source "kernel/power/Kconfig"
 
 config ARCH_SUSPEND_POSSIBLE
         depends on !ARCH_S5P64X0 && !ARCH_S5P6442
+        depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
+                CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE
         def_bool y
 
 endmenu
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 494224a9b459..03d01d783e3b 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -63,17 +63,6 @@ config DEBUG_USER
               8 - SIGSEGV faults
              16 - SIGBUS faults
 
-config DEBUG_ERRORS
-        bool "Verbose kernel error messages"
-        depends on DEBUG_KERNEL
-        help
-          This option controls verbose debugging information which can be
-          printed when the kernel detects an internal error. This debugging
-          information is useful to kernel hackers when tracking down problems,
-          but mostly meaningless to other people. It's safe to say Y unless
-          you are concerned with the code size or don't want to see these
-          messages.
-
 config DEBUG_STACK_USAGE
         bool "Enable stack utilization instrumentation"
         depends on DEBUG_KERNEL
diff --git a/arch/arm/common/Makefile b/arch/arm/common/Makefile
index e7521bca2c35..6ea9b6f3607a 100644
--- a/arch/arm/common/Makefile
+++ b/arch/arm/common/Makefile
@@ -16,5 +16,4 @@ obj-$(CONFIG_SHARP_SCOOP)	+= scoop.o
 obj-$(CONFIG_ARCH_IXP2000)      += uengine.o
 obj-$(CONFIG_ARCH_IXP23XX)      += uengine.o
 obj-$(CONFIG_PCI_HOST_ITE8152)  += it8152.o
-obj-$(CONFIG_COMMON_CLKDEV)     += clkdev.o
 obj-$(CONFIG_ARM_TIMER_SP804)   += timer-sp.o
diff --git a/arch/arm/include/asm/thread_notify.h b/arch/arm/include/asm/thread_notify.h
index c4391ba20350..1dc980675894 100644
--- a/arch/arm/include/asm/thread_notify.h
+++ b/arch/arm/include/asm/thread_notify.h
@@ -43,6 +43,7 @@ static inline void thread_notify(unsigned long rc, struct thread_info *thread)
 #define THREAD_NOTIFY_FLUSH     0
 #define THREAD_NOTIFY_EXIT      1
 #define THREAD_NOTIFY_SWITCH    2
+#define THREAD_NOTIFY_COPY      3
 
 #endif
 #endif
diff --git a/arch/arm/kernel/Makefile b/arch/arm/kernel/Makefile
index 74554f1742d7..8d95446150a3 100644
--- a/arch/arm/kernel/Makefile
+++ b/arch/arm/kernel/Makefile
@@ -29,7 +29,7 @@ obj-$(CONFIG_MODULES)		+= armksyms.o module.o
 obj-$(CONFIG_ARTHUR)            += arthur.o
 obj-$(CONFIG_ISA_DMA)           += dma-isa.o
 obj-$(CONFIG_PCI)               += bios32.o isa.o
-obj-$(CONFIG_PM)                += sleep.o
+obj-$(CONFIG_PM_SLEEP)          += sleep.o
 obj-$(CONFIG_HAVE_SCHED_CLOCK)  += sched_clock.o
 obj-$(CONFIG_SMP)               += smp.o smp_tlb.o
 obj-$(CONFIG_HAVE_ARM_SCU)      += smp_scu.o
diff --git a/arch/arm/kernel/elf.c b/arch/arm/kernel/elf.c
index d4a0da1e48f4..9b05c6a0dcea 100644
--- a/arch/arm/kernel/elf.c
+++ b/arch/arm/kernel/elf.c
@@ -40,15 +40,22 @@ EXPORT_SYMBOL(elf_check_arch);
 void elf_set_personality(const struct elf32_hdr *x)
 {
         unsigned int eflags = x->e_flags;
-        unsigned int personality = PER_LINUX_32BIT;
+        unsigned int personality = current->personality & ~PER_MASK;
+
+        /*
+         * We only support Linux ELF executables, so always set the
+         * personality to LINUX.
+         */
+        personality |= PER_LINUX;
 
         /*
          * APCS-26 is only valid for OABI executables
          */
-        if ((eflags & EF_ARM_EABI_MASK) == EF_ARM_EABI_UNKNOWN) {
-                if (eflags & EF_ARM_APCS_26)
-                        personality = PER_LINUX;
-        }
+        if ((eflags & EF_ARM_EABI_MASK) == EF_ARM_EABI_UNKNOWN &&
+            (eflags & EF_ARM_APCS_26))
+                personality &= ~ADDR_LIMIT_32BIT;
+        else
+                personality |= ADDR_LIMIT_32BIT;
 
         set_personality(personality);
 
diff --git a/arch/arm/kernel/hw_breakpoint.c b/arch/arm/kernel/hw_breakpoint.c
index 8dbc126f7152..87acc25d7a3e 100644
--- a/arch/arm/kernel/hw_breakpoint.c
+++ b/arch/arm/kernel/hw_breakpoint.c
@@ -868,6 +868,13 @@ static void reset_ctrl_regs(void *info)
                  */
                 asm volatile("mcr p14, 0, %0, c1, c0, 4" : : "r" (0));
                 isb();
+
+                /*
+                 * Clear any configured vector-catch events before
+                 * enabling monitor mode.
+                 */
+                asm volatile("mcr p14, 0, %0, c0, c7, 0" : : "r" (0));
+                isb();
         }
 
         if (enable_monitor_mode())
diff --git a/arch/arm/kernel/perf_event.c b/arch/arm/kernel/perf_event.c
index 69cfee0fe00f..979da3947f42 100644
--- a/arch/arm/kernel/perf_event.c
+++ b/arch/arm/kernel/perf_event.c
@@ -221,7 +221,7 @@ again:
         prev_raw_count &= armpmu->max_period;
 
         if (overflow)
-                delta = armpmu->max_period - prev_raw_count + new_raw_count;
+                delta = armpmu->max_period - prev_raw_count + new_raw_count + 1;
         else
                 delta = new_raw_count - prev_raw_count;
 
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index 94bbedbed639..5e1e54197227 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -372,6 +372,8 @@ copy_thread(unsigned long clone_flags, unsigned long stack_start,
         if (clone_flags & CLONE_SETTLS)
                 thread->tp_value = regs->ARM_r3;
 
+        thread_notify(THREAD_NOTIFY_COPY, thread);
+
         return 0;
 }
 
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index f0000e188c8c..3b54ad19d489 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -410,8 +410,7 @@ static int bad_syscall(int n, struct pt_regs *regs)
         struct thread_info *thread = current_thread_info();
         siginfo_t info;
 
-        if (current->personality != PER_LINUX &&
-            current->personality != PER_LINUX_32BIT &&
+        if ((current->personality & PER_MASK) != PER_LINUX &&
             thread->exec_domain->handler) {
                 thread->exec_domain->handler(n, regs);
                 return regs->ARM_r0;
diff --git a/arch/arm/mach-mmp/include/mach/gpio.h b/arch/arm/mach-mmp/include/mach/gpio.h
index ee8b02ed8011..7bfb827f3fe3 100644
--- a/arch/arm/mach-mmp/include/mach/gpio.h
+++ b/arch/arm/mach-mmp/include/mach/gpio.h
@@ -10,7 +10,7 @@
 #define BANK_OFF(n)     (((n) < 3) ? (n) << 2 : 0x100 + (((n) - 3) << 2))
 #define GPIO_REG(x)     (*((volatile u32 *)(GPIO_REGS_VIRT + (x))))
 
-#define NR_BUILTIN_GPIO (192)
+#define NR_BUILTIN_GPIO         IRQ_GPIO_NUM
 
 #define gpio_to_bank(gpio)      ((gpio) >> 5)
 #define gpio_to_irq(gpio)       (IRQ_GPIO_START + (gpio))
diff --git a/arch/arm/mach-mmp/include/mach/mfp-pxa168.h b/arch/arm/mach-mmp/include/mach/mfp-pxa168.h
index 4621067c7720..713be155a44d 100644
--- a/arch/arm/mach-mmp/include/mach/mfp-pxa168.h
+++ b/arch/arm/mach-mmp/include/mach/mfp-pxa168.h
@@ -8,6 +8,15 @@
 #define MFP_DRIVE_MEDIUM        (0x2 << 13)
 #define MFP_DRIVE_FAST          (0x3 << 13)
 
+#undef MFP_CFG
+#undef MFP_CFG_DRV
+
+#define MFP_CFG(pin, af)                \
+        (MFP_LPM_INPUT | MFP_PIN(MFP_PIN_##pin) | MFP_##af | MFP_DRIVE_MEDIUM)
+
+#define MFP_CFG_DRV(pin, af, drv)       \
+        (MFP_LPM_INPUT | MFP_PIN(MFP_PIN_##pin) | MFP_##af | MFP_DRIVE_##drv)
+
 /* GPIO */
 #define GPIO0_GPIO              MFP_CFG(GPIO0, AF5)
 #define GPIO1_GPIO              MFP_CFG(GPIO1, AF5)
diff --git a/arch/arm/mach-msm/board-qsd8x50.c b/arch/arm/mach-msm/board-qsd8x50.c
index 7f568611547e..6a96911b0ad5 100644
--- a/arch/arm/mach-msm/board-qsd8x50.c
+++ b/arch/arm/mach-msm/board-qsd8x50.c
@@ -160,10 +160,7 @@ static struct msm_mmc_platform_data qsd8x50_sdc1_data = {
 
 static void __init qsd8x50_init_mmc(void)
 {
-        if (machine_is_qsd8x50_ffa() || machine_is_qsd8x50a_ffa())
-                vreg_mmc = vreg_get(NULL, "gp6");
-        else
-                vreg_mmc = vreg_get(NULL, "gp5");
+        vreg_mmc = vreg_get(NULL, "gp5");
 
         if (IS_ERR(vreg_mmc)) {
                 pr_err("vreg get for vreg_mmc failed (%ld)\n",
diff --git a/arch/arm/mach-msm/timer.c b/arch/arm/mach-msm/timer.c
index 56f920c55b6a..38b95e949d13 100644
--- a/arch/arm/mach-msm/timer.c
+++ b/arch/arm/mach-msm/timer.c
@@ -269,7 +269,7 @@ int __cpuinit local_timer_setup(struct clock_event_device *evt)
 
         /* Use existing clock_event for cpu 0 */
         if (!smp_processor_id())
-                return;
+                return 0;
 
         writel(DGT_CLK_CTL_DIV_4, MSM_TMR_BASE + DGT_CLK_CTL);
 
diff --git a/arch/arm/mach-pxa/include/mach/gpio.h b/arch/arm/mach-pxa/include/mach/gpio.h
index b024a8b37439..c4639502efca 100644
--- a/arch/arm/mach-pxa/include/mach/gpio.h
+++ b/arch/arm/mach-pxa/include/mach/gpio.h
@@ -99,11 +99,24 @@
 #define GAFR(x)         GPIO_REG(0x54 + (((x) & 0x70) >> 2))
 
 
-#define NR_BUILTIN_GPIO 128
+#define NR_BUILTIN_GPIO         PXA_GPIO_IRQ_NUM
 
 #define gpio_to_bank(gpio)      ((gpio) >> 5)
 #define gpio_to_irq(gpio)       IRQ_GPIO(gpio)
-#define irq_to_gpio(irq)        IRQ_TO_GPIO(irq)
+
+static inline int irq_to_gpio(unsigned int irq)
+{
+        int gpio;
+
+        if (irq == IRQ_GPIO0 || irq == IRQ_GPIO1)
+                return irq - IRQ_GPIO0;
+
+        gpio = irq - PXA_GPIO_IRQ_BASE;
+        if (gpio >= 2 && gpio < NR_BUILTIN_GPIO)
+                return gpio;
+
+        return -1;
+}
 
 #ifdef CONFIG_CPU_PXA26x
 /* GPIO86/87/88/89 on PXA26x have their direction bits in GPDR2 inverted,
diff --git a/arch/arm/mach-pxa/include/mach/irqs.h b/arch/arm/mach-pxa/include/mach/irqs.h
index a4285fc00878..038402404e39 100644
--- a/arch/arm/mach-pxa/include/mach/irqs.h
+++ b/arch/arm/mach-pxa/include/mach/irqs.h
@@ -93,9 +93,6 @@
 #define GPIO_2_x_TO_IRQ(x)      (PXA_GPIO_IRQ_BASE + (x))
 #define IRQ_GPIO(x)     (((x) < 2) ? (IRQ_GPIO0 + (x)) : GPIO_2_x_TO_IRQ(x))
 
-#define IRQ_TO_GPIO_2_x(i)      ((i) - PXA_GPIO_IRQ_BASE)
-#define IRQ_TO_GPIO(i)  (((i) < IRQ_GPIO(2)) ? ((i) - IRQ_GPIO0) : IRQ_TO_GPIO_2_x(i))
-
 /*
  * The following interrupts are for board specific purposes. Since
  * the kernel can only run on one machine at a time, we can re-use
diff --git a/arch/arm/mach-pxa/pxa25x.c b/arch/arm/mach-pxa/pxa25x.c
index 6bde5956358d..a4af8c52d7ee 100644
--- a/arch/arm/mach-pxa/pxa25x.c
+++ b/arch/arm/mach-pxa/pxa25x.c
@@ -285,7 +285,7 @@ static inline void pxa25x_init_pm(void) {}
 
 static int pxa25x_set_wake(struct irq_data *d, unsigned int on)
 {
-        int gpio = IRQ_TO_GPIO(d->irq);
+        int gpio = irq_to_gpio(d->irq);
         uint32_t mask = 0;
 
         if (gpio >= 0 && gpio < 85)
diff --git a/arch/arm/mach-pxa/pxa27x.c b/arch/arm/mach-pxa/pxa27x.c
index 1cb5d0f9723f..909756eaf4b7 100644
--- a/arch/arm/mach-pxa/pxa27x.c
+++ b/arch/arm/mach-pxa/pxa27x.c
@@ -345,7 +345,7 @@ static inline void pxa27x_init_pm(void) {}
  */
 static int pxa27x_set_wake(struct irq_data *d, unsigned int on)
 {
-        int gpio = IRQ_TO_GPIO(d->irq);
+        int gpio = irq_to_gpio(d->irq);
         uint32_t mask;
 
         if (gpio >= 0 && gpio < 128)
diff --git a/arch/arm/mach-tegra/gpio.c b/arch/arm/mach-tegra/gpio.c
index 76a3f654220f..65a1aba6823d 100644
--- a/arch/arm/mach-tegra/gpio.c
+++ b/arch/arm/mach-tegra/gpio.c
@@ -257,7 +257,8 @@ static void tegra_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
 void tegra_gpio_resume(void)
 {
         unsigned long flags;
-        int b, p, i;
+        int b;
+        int p;
 
         local_irq_save(flags);
 
@@ -280,7 +281,8 @@ void tegra_gpio_resume(void)
 void tegra_gpio_suspend(void)
 {
         unsigned long flags;
-        int b, p, i;
+        int b;
+        int p;
 
         local_irq_save(flags);
         for (b = 0; b < ARRAY_SIZE(tegra_gpio_banks); b++) {
diff --git a/arch/arm/mach-tegra/tegra2_clocks.c b/arch/arm/mach-tegra/tegra2_clocks.c
index 6d7c4eea4dcb..4459470c052d 100644
--- a/arch/arm/mach-tegra/tegra2_clocks.c
+++ b/arch/arm/mach-tegra/tegra2_clocks.c
@@ -1362,14 +1362,15 @@ static int tegra_clk_shared_bus_set_rate(struct clk *c, unsigned long rate)
 {
         unsigned long flags;
         int ret;
+        long new_rate = rate;
 
-        rate = clk_round_rate(c->parent, rate);
-        if (rate < 0)
-                return rate;
+        new_rate = clk_round_rate(c->parent, new_rate);
+        if (new_rate < 0)
+                return new_rate;
 
         spin_lock_irqsave(&c->parent->spinlock, flags);
 
-        c->u.shared_bus_user.rate = rate;
+        c->u.shared_bus_user.rate = new_rate;
         ret = tegra_clk_shared_bus_update(c->parent);
 
         spin_unlock_irqrestore(&c->parent->spinlock, flags);
diff --git a/arch/arm/mm/mmap.c b/arch/arm/mm/mmap.c
index afe209e1e1f8..74be05f3e03a 100644
--- a/arch/arm/mm/mmap.c
+++ b/arch/arm/mm/mmap.c
@@ -7,6 +7,7 @@
 #include <linux/shm.h>
 #include <linux/sched.h>
 #include <linux/io.h>
+#include <linux/personality.h>
 #include <linux/random.h>
 #include <asm/cputype.h>
 #include <asm/system.h>
@@ -82,7 +83,8 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
                 mm->cached_hole_size = 0;
         }
         /* 8 bits of randomness in 20 address space bits */
-        if (current->flags & PF_RANDOMIZE)
+        if ((current->flags & PF_RANDOMIZE) &&
+            !(current->personality & ADDR_NO_RANDOMIZE))
                 addr += (get_random_int() % (1 << 8)) << PAGE_SHIFT;
 
 full_search:
diff --git a/arch/arm/mm/proc-arm920.S b/arch/arm/mm/proc-arm920.S
index b46eb21f05c7..bf8a1d1cccb6 100644
--- a/arch/arm/mm/proc-arm920.S
+++ b/arch/arm/mm/proc-arm920.S
@@ -390,7 +390,7 @@ ENTRY(cpu_arm920_set_pte_ext)
 /* Suspend/resume support: taken from arch/arm/plat-s3c24xx/sleep.S */
 .globl  cpu_arm920_suspend_size
 .equ    cpu_arm920_suspend_size, 4 * 3
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 ENTRY(cpu_arm920_do_suspend)
         stmfd   sp!, {r4 - r7, lr}
         mrc     p15, 0, r4, c13, c0, 0  @ PID
diff --git a/arch/arm/mm/proc-arm926.S b/arch/arm/mm/proc-arm926.S
index 6a4bdb2c94a7..0ed85d930c09 100644
--- a/arch/arm/mm/proc-arm926.S
+++ b/arch/arm/mm/proc-arm926.S
@@ -404,7 +404,7 @@ ENTRY(cpu_arm926_set_pte_ext)
 /* Suspend/resume support: taken from arch/arm/plat-s3c24xx/sleep.S */
 .globl  cpu_arm926_suspend_size
 .equ    cpu_arm926_suspend_size, 4 * 3
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 ENTRY(cpu_arm926_do_suspend)
         stmfd   sp!, {r4 - r7, lr}
         mrc     p15, 0, r4, c13, c0, 0  @ PID
diff --git a/arch/arm/mm/proc-sa1100.S b/arch/arm/mm/proc-sa1100.S
index 74483d1977fe..184a9c997e36 100644
--- a/arch/arm/mm/proc-sa1100.S
+++ b/arch/arm/mm/proc-sa1100.S
@@ -171,7 +171,7 @@ ENTRY(cpu_sa1100_set_pte_ext)
 
 .globl  cpu_sa1100_suspend_size
 .equ    cpu_sa1100_suspend_size, 4*4
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 ENTRY(cpu_sa1100_do_suspend)
         stmfd   sp!, {r4 - r7, lr}
         mrc     p15, 0, r4, c3, c0, 0           @ domain ID
diff --git a/arch/arm/mm/proc-v6.S b/arch/arm/mm/proc-v6.S
index bfa0c9f611c5..7c99cb4c8e4f 100644
--- a/arch/arm/mm/proc-v6.S
+++ b/arch/arm/mm/proc-v6.S
@@ -124,7 +124,7 @@ ENTRY(cpu_v6_set_pte_ext)
 /* Suspend/resume support: taken from arch/arm/mach-s3c64xx/sleep.S */
 .globl  cpu_v6_suspend_size
 .equ    cpu_v6_suspend_size, 4 * 8
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 ENTRY(cpu_v6_do_suspend)
         stmfd   sp!, {r4 - r11, lr}
         mrc     p15, 0, r4, c13, c0, 0  @ FCSE/PID
diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S
index c35618e42f6f..babfba09c89f 100644
--- a/arch/arm/mm/proc-v7.S
+++ b/arch/arm/mm/proc-v7.S
@@ -211,7 +211,7 @@ cpu_v7_name:
 /* Suspend/resume support: derived from arch/arm/mach-s5pv210/sleep.S */
 .globl  cpu_v7_suspend_size
 .equ    cpu_v7_suspend_size, 4 * 8
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 ENTRY(cpu_v7_do_suspend)
         stmfd   sp!, {r4 - r11, lr}
         mrc     p15, 0, r4, c13, c0, 0  @ FCSE/PID
diff --git a/arch/arm/mm/proc-xsc3.S b/arch/arm/mm/proc-xsc3.S
index 63d8b2044e84..596213699f37 100644
--- a/arch/arm/mm/proc-xsc3.S
+++ b/arch/arm/mm/proc-xsc3.S
@@ -417,7 +417,7 @@ ENTRY(cpu_xsc3_set_pte_ext)
 
 .globl  cpu_xsc3_suspend_size
 .equ    cpu_xsc3_suspend_size, 4 * 8
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 ENTRY(cpu_xsc3_do_suspend)
         stmfd   sp!, {r4 - r10, lr}
         mrc     p14, 0, r4, c6, c0, 0   @ clock configuration, for turbo mode
diff --git a/arch/arm/mm/proc-xscale.S b/arch/arm/mm/proc-xscale.S
index 086038cd86ab..ce233bcbf506 100644
--- a/arch/arm/mm/proc-xscale.S
+++ b/arch/arm/mm/proc-xscale.S
@@ -518,7 +518,7 @@ ENTRY(cpu_xscale_set_pte_ext)
 
 .globl  cpu_xscale_suspend_size
 .equ    cpu_xscale_suspend_size, 4 * 7
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 ENTRY(cpu_xscale_do_suspend)
         stmfd   sp!, {r4 - r10, lr}
         mrc     p14, 0, r4, c6, c0, 0   @ clock configuration, for turbo mode
diff --git a/arch/arm/plat-s5p/pm.c b/arch/arm/plat-s5p/pm.c
index d592b6304b48..d15dc47b0e3d 100644
--- a/arch/arm/plat-s5p/pm.c
+++ b/arch/arm/plat-s5p/pm.c
@@ -19,17 +19,6 @@
 
 #define PFX "s5p pm: "
 
-/* s3c_pm_check_resume_pin
- *
- * check to see if the pin is configured correctly for sleep mode, and
- * make any necessary adjustments if it is not
-*/
-
-static void s3c_pm_check_resume_pin(unsigned int pin, unsigned int irqoffs)
-{
-        /* nothing here yet */
-}
-
 /* s3c_pm_configure_extint
  *
  * configure all external interrupt pins
diff --git a/arch/arm/plat-samsung/pm-check.c b/arch/arm/plat-samsung/pm-check.c
index e4baf76f374a..6b733fafe7cd 100644
--- a/arch/arm/plat-samsung/pm-check.c
+++ b/arch/arm/plat-samsung/pm-check.c
@@ -164,7 +164,6 @@ static inline int in_region(void *ptr, int size, void *what, size_t whatsz)
  */
 static u32 *s3c_pm_runcheck(struct resource *res, u32 *val)
 {
-        void *save_at = phys_to_virt(s3c_sleep_save_phys);
         unsigned long addr;
         unsigned long left;
         void *stkpage;
@@ -192,11 +191,6 @@ static u32 *s3c_pm_runcheck(struct resource *res, u32 *val)
                         goto skip_check;
                 }
 
-                if (in_region(ptr, left, save_at, 32*4 )) {
-                        S3C_PMDBG("skipping %08lx, has save block in\n", addr);
-                        goto skip_check;
-                }
-
                 /* calculate and check the checksum */
 
                 calc = crc32_le(~0, ptr, left);
diff --git a/arch/arm/plat-samsung/pm.c b/arch/arm/plat-samsung/pm.c
index d5b58d31903c..5c0a440d6e16 100644
--- a/arch/arm/plat-samsung/pm.c
+++ b/arch/arm/plat-samsung/pm.c
@@ -214,8 +214,9 @@ void s3c_pm_do_restore_core(struct sleep_save *ptr, int count)
  *
  * print any IRQs asserted at resume time (ie, we woke from)
 */
-static void s3c_pm_show_resume_irqs(int start, unsigned long which,
-                                    unsigned long mask)
+static void __maybe_unused s3c_pm_show_resume_irqs(int start,
+                                                   unsigned long which,
+                                                   unsigned long mask)
 {
         int i;
 
diff --git a/arch/arm/vfp/vfpmodule.c b/arch/arm/vfp/vfpmodule.c
index bbf3da012afd..f74695075e64 100644
--- a/arch/arm/vfp/vfpmodule.c
+++ b/arch/arm/vfp/vfpmodule.c
@@ -78,6 +78,14 @@ static void vfp_thread_exit(struct thread_info *thread)
         put_cpu();
 }
 
+static void vfp_thread_copy(struct thread_info *thread)
+{
+        struct thread_info *parent = current_thread_info();
+
+        vfp_sync_hwstate(parent);
+        thread->vfpstate = parent->vfpstate;
+}
+
 /*
  * When this function is called with the following 'cmd's, the following
  * is true while this function is being run:
@@ -104,12 +112,17 @@ static void vfp_thread_exit(struct thread_info *thread)
 static int vfp_notifier(struct notifier_block *self, unsigned long cmd, void *v)
 {
         struct thread_info *thread = v;
+        u32 fpexc;
+#ifdef CONFIG_SMP
+        unsigned int cpu;
+#endif
 
-        if (likely(cmd == THREAD_NOTIFY_SWITCH)) {
-                u32 fpexc = fmrx(FPEXC);
+        switch (cmd) {
+        case THREAD_NOTIFY_SWITCH:
+                fpexc = fmrx(FPEXC);
 
 #ifdef CONFIG_SMP
-                unsigned int cpu = thread->cpu;
+                cpu = thread->cpu;
 
                 /*
                  * On SMP, if VFP is enabled, save the old state in
@@ -134,13 +147,20 @@ static int vfp_notifier(struct notifier_block *self, unsigned long cmd, void *v)
                  * old state.
                  */
                 fmxr(FPEXC, fpexc & ~FPEXC_EN);
-                return NOTIFY_DONE;
-        }
+                break;
 
-        if (cmd == THREAD_NOTIFY_FLUSH)
+        case THREAD_NOTIFY_FLUSH:
                 vfp_thread_flush(thread);
-        else
+                break;
+
+        case THREAD_NOTIFY_EXIT:
                 vfp_thread_exit(thread);
+                break;
+
+        case THREAD_NOTIFY_COPY:
+                vfp_thread_copy(thread);
+                break;
+        }
 
         return NOTIFY_DONE;
 }
diff --git a/arch/blackfin/include/asm/system.h b/arch/blackfin/include/asm/system.h
index 19e2c7c3e63a..44bd0cced725 100644
--- a/arch/blackfin/include/asm/system.h
+++ b/arch/blackfin/include/asm/system.h
@@ -19,11 +19,11 @@
  * Force strict CPU ordering.
  */
 #define nop()  __asm__ __volatile__ ("nop;\n\t" : : )
-#define mb()   __asm__ __volatile__ (""   : : : "memory")
-#define rmb()  __asm__ __volatile__ (""   : : : "memory")
-#define wmb()  __asm__ __volatile__ (""   : : : "memory")
-#define set_mb(var, value) do { (void) xchg(&var, value); } while (0)
-#define read_barrier_depends()          do { } while(0)
+#define smp_mb()  mb()
+#define smp_rmb() rmb()
+#define smp_wmb() wmb()
+#define set_mb(var, value) do { var = value; mb(); } while (0)
+#define smp_read_barrier_depends()      read_barrier_depends()
 
 #ifdef CONFIG_SMP
 asmlinkage unsigned long __raw_xchg_1_asm(volatile void *ptr, unsigned long value);
@@ -37,16 +37,16 @@ asmlinkage unsigned long __raw_cmpxchg_4_asm(volatile void *ptr,
                                         unsigned long new, unsigned long old);
 
 #ifdef __ARCH_SYNC_CORE_DCACHE
-# define smp_mb()       do { barrier(); smp_check_barrier(); smp_mark_barrier(); } while (0)
-# define smp_rmb()      do { barrier(); smp_check_barrier(); } while (0)
-# define smp_wmb()      do { barrier(); smp_mark_barrier(); } while (0)
-#define smp_read_barrier_depends()      do { barrier(); smp_check_barrier(); } while (0)
-
+/* Force Core data cache coherence */
+# define mb()   do { barrier(); smp_check_barrier(); smp_mark_barrier(); } while (0)
+# define rmb()  do { barrier(); smp_check_barrier(); } while (0)
+# define wmb()  do { barrier(); smp_mark_barrier(); } while (0)
+# define read_barrier_depends() do { barrier(); smp_check_barrier(); } while (0)
 #else
-# define smp_mb()       barrier()
-# define smp_rmb()      barrier()
-# define smp_wmb()      barrier()
-#define smp_read_barrier_depends()      barrier()
+# define mb()   barrier()
+# define rmb()  barrier()
+# define wmb()  barrier()
+# define read_barrier_depends() do { } while (0)
 #endif
 
 static inline unsigned long __xchg(unsigned long x, volatile void *ptr,
@@ -99,10 +99,10 @@ static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old,
 
 #else /* !CONFIG_SMP */
 
-#define smp_mb()        barrier()
-#define smp_rmb()       barrier()
-#define smp_wmb()       barrier()
-#define smp_read_barrier_depends()      do { } while(0)
+#define mb()    barrier()
+#define rmb()   barrier()
+#define wmb()   barrier()
+#define read_barrier_depends()  do { } while (0)
 
 struct __xchg_dummy {
         unsigned long a[100];
diff --git a/arch/blackfin/kernel/gptimers.c b/arch/blackfin/kernel/gptimers.c
index cdbe075de1dc..8b81dc04488a 100644
--- a/arch/blackfin/kernel/gptimers.c
+++ b/arch/blackfin/kernel/gptimers.c
@@ -268,7 +268,7 @@ void disable_gptimers(uint16_t mask)
         _disable_gptimers(mask);
         for (i = 0; i < MAX_BLACKFIN_GPTIMERS; ++i)
                 if (mask & (1 << i))
-                        group_regs[BFIN_TIMER_OCTET(i)]->status |= trun_mask[i];
+                        group_regs[BFIN_TIMER_OCTET(i)]->status = trun_mask[i];
         SSYNC();
 }
 EXPORT_SYMBOL(disable_gptimers);
diff --git a/arch/blackfin/kernel/time-ts.c b/arch/blackfin/kernel/time-ts.c
index 8c9a43daf80f..cdb4beb6bc8f 100644
--- a/arch/blackfin/kernel/time-ts.c
+++ b/arch/blackfin/kernel/time-ts.c
@@ -206,8 +206,14 @@ irqreturn_t bfin_gptmr0_interrupt(int irq, void *dev_id)
 {
         struct clock_event_device *evt = dev_id;
         smp_mb();
-        evt->event_handler(evt);
+        /*
+         * We want to ACK before we handle so that we can handle smaller timer
+         * intervals.  This way if the timer expires again while we're handling
+         * things, we're more likely to see that 2nd int rather than swallowing
+         * it by ACKing the int at the end of this handler.
+         */
         bfin_gptmr0_ack();
+        evt->event_handler(evt);
         return IRQ_HANDLED;
 }
 
diff --git a/arch/blackfin/mach-common/smp.c b/arch/blackfin/mach-common/smp.c
index 326bb86f4d29..1fbd94c44457 100644
--- a/arch/blackfin/mach-common/smp.c
+++ b/arch/blackfin/mach-common/smp.c
@@ -109,10 +109,23 @@ static void ipi_flush_icache(void *info)
         struct blackfin_flush_data *fdata = info;
 
         /* Invalidate the memory holding the bounds of the flushed region. */
-        invalidate_dcache_range((unsigned long)fdata,
-                (unsigned long)fdata + sizeof(*fdata));
+        blackfin_dcache_invalidate_range((unsigned long)fdata,
+                                         (unsigned long)fdata + sizeof(*fdata));
+
+        /* Make sure all write buffers in the data side of the core
+         * are flushed before trying to invalidate the icache.  This
+         * needs to be after the data flush and before the icache
+         * flush so that the SSYNC does the right thing in preventing
+         * the instruction prefetcher from hitting things in cached
+         * memory at the wrong time -- it runs much further ahead than
+         * the pipeline.
+         */
+        SSYNC();
 
-        flush_icache_range(fdata->start, fdata->end);
+        /* ipi_flaush_icache is invoked by generic flush_icache_range,
+         * so call blackfin arch icache flush directly here.
+         */
+        blackfin_icache_flush_range(fdata->start, fdata->end);
 }
 
 static void ipi_call_function(unsigned int cpu, struct ipi_message *msg)
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index 851b3bf6e962..eccdefe70d4e 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -6,7 +6,6 @@ config MICROBLAZE
         select HAVE_FUNCTION_GRAPH_TRACER
         select HAVE_DYNAMIC_FTRACE
         select HAVE_FTRACE_MCOUNT_RECORD
-        select USB_ARCH_HAS_EHCI
         select ARCH_WANT_OPTIONAL_GPIOLIB
         select HAVE_OPROFILE
         select HAVE_ARCH_KGDB
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index b6ff882f695b..8f4d50b0adfa 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -209,7 +209,7 @@ config ARCH_HIBERNATION_POSSIBLE
 config ARCH_SUSPEND_POSSIBLE
         def_bool y
         depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \
-                   PPC_85xx || PPC_86xx || PPC_PSERIES || 44x || 40x
+                   (PPC_85xx && !SMP) || PPC_86xx || PPC_PSERIES || 44x || 40x
 
 config PPC_DCR_NATIVE
         bool
diff --git a/arch/powerpc/include/asm/cputable.h b/arch/powerpc/include/asm/cputable.h
index be3cdf9134ce..1833d1a07e79 100644
--- a/arch/powerpc/include/asm/cputable.h
+++ b/arch/powerpc/include/asm/cputable.h
@@ -382,10 +382,12 @@ extern const char *powerpc_base_platform;
 #define CPU_FTRS_E500_2 (CPU_FTR_MAYBE_CAN_DOZE | CPU_FTR_USE_TB | \
             CPU_FTR_SPE_COMP | CPU_FTR_MAYBE_CAN_NAP | \
             CPU_FTR_NODSISRALIGN | CPU_FTR_NOEXECUTE)
-#define CPU_FTRS_E500MC (CPU_FTR_MAYBE_CAN_DOZE | CPU_FTR_USE_TB | \
-            CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_NODSISRALIGN | \
+#define CPU_FTRS_E500MC (CPU_FTR_USE_TB | CPU_FTR_NODSISRALIGN | \
             CPU_FTR_L2CSR | CPU_FTR_LWSYNC | CPU_FTR_NOEXECUTE | \
             CPU_FTR_DBELL)
+#define CPU_FTRS_E5500  (CPU_FTR_USE_TB | CPU_FTR_NODSISRALIGN | \
+            CPU_FTR_L2CSR | CPU_FTR_LWSYNC | CPU_FTR_NOEXECUTE | \
+            CPU_FTR_DBELL | CPU_FTR_POPCNTB | CPU_FTR_POPCNTD)
 #define CPU_FTRS_GENERIC_32     (CPU_FTR_COMMON | CPU_FTR_NODSISRALIGN)
 
 /* 64-bit CPUs */
@@ -435,11 +437,15 @@ extern const char *powerpc_base_platform;
 #define CPU_FTRS_COMPATIBLE     (CPU_FTR_USE_TB | CPU_FTR_PPCAS_ARCH_V2)
 
 #ifdef __powerpc64__
+#ifdef CONFIG_PPC_BOOK3E
+#define CPU_FTRS_POSSIBLE       (CPU_FTRS_E5500)
+#else
 #define CPU_FTRS_POSSIBLE       \
             (CPU_FTRS_POWER3 | CPU_FTRS_RS64 | CPU_FTRS_POWER4 |        \
             CPU_FTRS_PPC970 | CPU_FTRS_POWER5 | CPU_FTRS_POWER6 |       \
             CPU_FTRS_POWER7 | CPU_FTRS_CELL | CPU_FTRS_PA6T |           \
             CPU_FTR_1T_SEGMENT | CPU_FTR_VSX)
+#endif
 #else
 enum {
         CPU_FTRS_POSSIBLE =
@@ -473,16 +479,21 @@ enum {
 #endif
 #ifdef CONFIG_E500
             CPU_FTRS_E500 | CPU_FTRS_E500_2 | CPU_FTRS_E500MC |
+            CPU_FTRS_E5500 |
 #endif
             0,
 };
 #endif /* __powerpc64__ */
 
 #ifdef __powerpc64__
+#ifdef CONFIG_PPC_BOOK3E
+#define CPU_FTRS_ALWAYS         (CPU_FTRS_E5500)
+#else
 #define CPU_FTRS_ALWAYS         \
             (CPU_FTRS_POWER3 & CPU_FTRS_RS64 & CPU_FTRS_POWER4 &        \
             CPU_FTRS_PPC970 & CPU_FTRS_POWER5 & CPU_FTRS_POWER6 &       \
             CPU_FTRS_POWER7 & CPU_FTRS_CELL & CPU_FTRS_PA6T & CPU_FTRS_POSSIBLE)
+#endif
 #else
 enum {
         CPU_FTRS_ALWAYS =
@@ -513,6 +524,7 @@ enum {
 #endif
 #ifdef CONFIG_E500
             CPU_FTRS_E500 & CPU_FTRS_E500_2 & CPU_FTRS_E500MC &
+            CPU_FTRS_E5500 &
 #endif
             CPU_FTRS_POSSIBLE,
 };
diff --git a/arch/powerpc/include/asm/pte-common.h b/arch/powerpc/include/asm/pte-common.h
index 811f04ac3660..8d1569c29042 100644
--- a/arch/powerpc/include/asm/pte-common.h
+++ b/arch/powerpc/include/asm/pte-common.h
@@ -162,7 +162,7 @@ extern unsigned long bad_call_to_PMD_PAGE_SIZE(void);
  * on platforms where such control is possible.
  */
 #if defined(CONFIG_KGDB) || defined(CONFIG_XMON) || defined(CONFIG_BDI_SWITCH) ||\
-        defined(CONFIG_KPROBES)
+        defined(CONFIG_KPROBES) || defined(CONFIG_DYNAMIC_FTRACE)
 #define PAGE_KERNEL_TEXT        PAGE_KERNEL_X
 #else
 #define PAGE_KERNEL_TEXT        PAGE_KERNEL_ROX
diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index c9b68d07ac4f..b9602ee06deb 100644
--- a/arch/powerpc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -1973,7 +1973,7 @@ static struct cpu_spec __initdata cpu_specs[] = {
                 .pvr_mask               = 0xffff0000,
                 .pvr_value              = 0x80240000,
                 .cpu_name               = "e5500",
-                .cpu_features           = CPU_FTRS_E500MC,
+                .cpu_features           = CPU_FTRS_E5500,
                 .cpu_user_features      = COMMON_USER_BOOKE,
                 .mmu_features           = MMU_FTR_TYPE_FSL_E | MMU_FTR_BIG_PHYS |
                         MMU_FTR_USE_TLBILX,
diff --git a/arch/powerpc/kernel/crash.c b/arch/powerpc/kernel/crash.c
index 3d3d416339dd..5b5e1f002a8e 100644
--- a/arch/powerpc/kernel/crash.c
+++ b/arch/powerpc/kernel/crash.c
@@ -163,7 +163,7 @@ static void crash_kexec_prepare_cpus(int cpu)
 }
 
 /* wait for all the CPUs to hit real mode but timeout if they don't come in */
-#if defined(CONFIG_PPC_STD_MMU_64) && defined(CONFIG_SMP)
+#ifdef CONFIG_PPC_STD_MMU_64
 static void crash_kexec_wait_realmode(int cpu)
 {
         unsigned int msecs;
@@ -188,9 +188,7 @@ static void crash_kexec_wait_realmode(int cpu)
         }
         mb();
 }
-#else
-static inline void crash_kexec_wait_realmode(int cpu) {}
-#endif
+#endif  /* CONFIG_PPC_STD_MMU_64 */
 
 /*
  * This function will be called by secondary cpus or by kexec cpu
@@ -235,7 +233,9 @@ void crash_kexec_secondary(struct pt_regs *regs)
         crash_ipi_callback(regs);
 }
 
-#else
+#else   /* ! CONFIG_SMP */
+static inline void crash_kexec_wait_realmode(int cpu) {}
+
 static void crash_kexec_prepare_cpus(int cpu)
 {
         /*
@@ -255,7 +255,7 @@ void crash_kexec_secondary(struct pt_regs *regs)
 {
         cpus_in_sr = CPU_MASK_NONE;
 }
-#endif
+#endif  /* CONFIG_SMP */
 
 /*
  * Register a function to be called on shutdown.  Only use this if you
diff --git a/arch/powerpc/kernel/legacy_serial.c b/arch/powerpc/kernel/legacy_serial.c
index c834757bebc0..2b97b80d6d7d 100644
--- a/arch/powerpc/kernel/legacy_serial.c
+++ b/arch/powerpc/kernel/legacy_serial.c
@@ -330,9 +330,11 @@ void __init find_legacy_serial_ports(void)
                 if (!parent)
                         continue;
                 if (of_match_node(legacy_serial_parents, parent) != NULL) {
-                        index = add_legacy_soc_port(np, np);
-                        if (index >= 0 && np == stdout)
-                                legacy_serial_console = index;
+                        if (of_device_is_available(np)) {
+                                index = add_legacy_soc_port(np, np);
+                                if (index >= 0 && np == stdout)
+                                        legacy_serial_console = index;
+                        }
                 }
                 of_node_put(parent);
         }
diff --git a/arch/powerpc/kernel/perf_event.c b/arch/powerpc/kernel/perf_event.c
index c4063b7f49a0..822f63008ae1 100644
--- a/arch/powerpc/kernel/perf_event.c
+++ b/arch/powerpc/kernel/perf_event.c
@@ -398,6 +398,25 @@ static int check_excludes(struct perf_event **ctrs, unsigned int cflags[],
         return 0;
 }
 
+static u64 check_and_compute_delta(u64 prev, u64 val)
+{
+        u64 delta = (val - prev) & 0xfffffffful;
+
+        /*
+         * POWER7 can roll back counter values, if the new value is smaller
+         * than the previous value it will cause the delta and the counter to
+         * have bogus values unless we rolled a counter over.  If a coutner is
+         * rolled back, it will be smaller, but within 256, which is the maximum
+         * number of events to rollback at once.  If we dectect a rollback
+         * return 0.  This can lead to a small lack of precision in the
+         * counters.
+         */
+        if (prev > val && (prev - val) < 256)
+                delta = 0;
+
+        return delta;
+}
+
 static void power_pmu_read(struct perf_event *event)
 {
         s64 val, delta, prev;
@@ -416,10 +435,11 @@ static void power_pmu_read(struct perf_event *event)
                 prev = local64_read(&event->hw.prev_count);
                 barrier();
                 val = read_pmc(event->hw.idx);
+                delta = check_and_compute_delta(prev, val);
+                if (!delta)
+                        return;
         } while (local64_cmpxchg(&event->hw.prev_count, prev, val) != prev);
 
-        /* The counters are only 32 bits wide */
-        delta = (val - prev) & 0xfffffffful;
         local64_add(delta, &event->count);
         local64_sub(delta, &event->hw.period_left);
 }
@@ -449,8 +469,9 @@ static void freeze_limited_counters(struct cpu_hw_events *cpuhw,
                 val = (event->hw.idx == 5) ? pmc5 : pmc6;
                 prev = local64_read(&event->hw.prev_count);
                 event->hw.idx = 0;
-                delta = (val - prev) & 0xfffffffful;
-                local64_add(delta, &event->count);
+                delta = check_and_compute_delta(prev, val);
+                if (delta)
+                        local64_add(delta, &event->count);
         }
 }
 
@@ -458,14 +479,16 @@ static void thaw_limited_counters(struct cpu_hw_events *cpuhw,
                                   unsigned long pmc5, unsigned long pmc6)
 {
         struct perf_event *event;
-        u64 val;
+        u64 val, prev;
         int i;
 
         for (i = 0; i < cpuhw->n_limited; ++i) {
                 event = cpuhw->limited_counter[i];
                 event->hw.idx = cpuhw->limited_hwidx[i];
                 val = (event->hw.idx == 5) ? pmc5 : pmc6;
-                local64_set(&event->hw.prev_count, val);
+                prev = local64_read(&event->hw.prev_count);
+                if (check_and_compute_delta(prev, val))
+                        local64_set(&event->hw.prev_count, val);
                 perf_event_update_userpage(event);
         }
 }
@@ -1197,7 +1220,7 @@ static void record_and_restart(struct perf_event *event, unsigned long val,
 
         /* we don't have to worry about interrupts here */
         prev = local64_read(&event->hw.prev_count);
-        delta = (val - prev) & 0xfffffffful;
+        delta = check_and_compute_delta(prev, val);
         local64_add(delta, &event->count);
 
         /*
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 375480c56eb9..f33acfd872ad 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -229,6 +229,9 @@ static u64 scan_dispatch_log(u64 stop_tb)
         u64 stolen = 0;
         u64 dtb;
 
+        if (!dtl)
+                return 0;
+
         if (i == vpa->dtl_idx)
                 return 0;
         while (i < vpa->dtl_idx) {
diff --git a/arch/powerpc/platforms/powermac/smp.c b/arch/powerpc/platforms/powermac/smp.c
index a830c5e80657..bc5f0dc6ae1e 100644
--- a/arch/powerpc/platforms/powermac/smp.c
+++ b/arch/powerpc/platforms/powermac/smp.c
@@ -842,6 +842,7 @@ static void __devinit smp_core99_setup_cpu(int cpu_nr)
         mpic_setup_this_cpu();
 }
 
+#ifdef CONFIG_PPC64
 #ifdef CONFIG_HOTPLUG_CPU
 static int smp_core99_cpu_notify(struct notifier_block *self,
                                  unsigned long action, void *hcpu)
@@ -879,7 +880,6 @@ static struct notifier_block __cpuinitdata smp_core99_cpu_nb = {
 
 static void __init smp_core99_bringup_done(void)
 {
-#ifdef CONFIG_PPC64
         extern void g5_phy_disable_cpu1(void);
 
         /* Close i2c bus if it was used for tb sync */
@@ -894,14 +894,14 @@ static void __init smp_core99_bringup_done(void)
                 set_cpu_present(1, false);
                 g5_phy_disable_cpu1();
         }
-#endif /* CONFIG_PPC64 */
-
 #ifdef CONFIG_HOTPLUG_CPU
         register_cpu_notifier(&smp_core99_cpu_nb);
 #endif
+
         if (ppc_md.progress)
                 ppc_md.progress("smp_core99_bringup_done", 0x349);
 }
+#endif /* CONFIG_PPC64 */
 
 #ifdef CONFIG_HOTPLUG_CPU
 
@@ -975,7 +975,9 @@ static void pmac_cpu_die(void)
 struct smp_ops_t core99_smp_ops = {
         .message_pass   = smp_mpic_message_pass,
         .probe          = smp_core99_probe,
+#ifdef CONFIG_PPC64
         .bringup_done   = smp_core99_bringup_done,
+#endif
         .kick_cpu       = smp_core99_kick_cpu,
         .setup_cpu      = smp_core99_setup_cpu,
         .give_timebase  = smp_core99_give_timebase,
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index 000724149089..6c42cfde8415 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -287,14 +287,22 @@ static int alloc_dispatch_logs(void)
         int cpu, ret;
         struct paca_struct *pp;
         struct dtl_entry *dtl;
+        struct kmem_cache *dtl_cache;
 
         if (!firmware_has_feature(FW_FEATURE_SPLPAR))
                 return 0;
 
+        dtl_cache = kmem_cache_create("dtl", DISPATCH_LOG_BYTES,
+                                                DISPATCH_LOG_BYTES, 0, NULL);
+        if (!dtl_cache) {
+                pr_warn("Failed to create dispatch trace log buffer cache\n");
+                pr_warn("Stolen time statistics will be unreliable\n");
+                return 0;
+        }
+
         for_each_possible_cpu(cpu) {
                 pp = &paca[cpu];
-                dtl = kmalloc_node(DISPATCH_LOG_BYTES, GFP_KERNEL,
-                                   cpu_to_node(cpu));
+                dtl = kmem_cache_alloc(dtl_cache, GFP_KERNEL);
                 if (!dtl) {
                         pr_warn("Failed to allocate dispatch trace log for cpu %d\n",
                                 cpu);
diff --git a/arch/powerpc/sysdev/fsl_pci.c b/arch/powerpc/sysdev/fsl_pci.c
index f8f7f28c6343..68ca9290df94 100644
--- a/arch/powerpc/sysdev/fsl_pci.c
+++ b/arch/powerpc/sysdev/fsl_pci.c
@@ -324,6 +324,11 @@ int __init fsl_add_bridge(struct device_node *dev, int is_primary)
         struct resource rsrc;
         const int *bus_range;
 
+        if (!of_device_is_available(dev)) {
+                pr_warning("%s: disabled\n", dev->full_name);
+                return -ENODEV;
+        }
+
         pr_debug("Adding PCI host bridge %s\n", dev->full_name);
 
         /* Fetch host bridge registers address */
diff --git a/arch/powerpc/sysdev/fsl_rio.c b/arch/powerpc/sysdev/fsl_rio.c
index 14232d57369c..49798532b477 100644
--- a/arch/powerpc/sysdev/fsl_rio.c
+++ b/arch/powerpc/sysdev/fsl_rio.c
@@ -1457,7 +1457,6 @@ int fsl_rio_setup(struct platform_device *dev)
         port->ops = ops;
         port->priv = priv;
         port->phys_efptr = 0x100;
-        rio_register_mport(port);
 
         priv->regs_win = ioremap(regs.start, regs.end - regs.start + 1);
         rio_regs_win = priv->regs_win;
@@ -1504,6 +1503,9 @@ int fsl_rio_setup(struct platform_device *dev)
         dev_info(&dev->dev, "RapidIO Common Transport System size: %d\n",
                         port->sys_size ? 65536 : 256);
 
+        if (rio_register_mport(port))
+                goto err;
+
         if (port->host_deviceid >= 0)
                 out_be32(priv->regs_win + RIO_GCCSR, RIO_PORT_GEN_HOST |
                         RIO_PORT_GEN_MASTER | RIO_PORT_GEN_DISCOVERED);
diff --git a/arch/um/Kconfig.x86 b/arch/um/Kconfig.x86
index 02fb017fed47..a9da516a5274 100644
--- a/arch/um/Kconfig.x86
+++ b/arch/um/Kconfig.x86
@@ -4,6 +4,10 @@ menu "UML-specific options"
 
 menu "Host processor type and features"
 
+config CMPXCHG_LOCAL
+        bool
+        default n
+
 source "arch/x86/Kconfig.cpu"
 
 endmenu
diff --git a/arch/um/include/asm/bug.h b/arch/um/include/asm/bug.h
new file mode 100644
index 000000000000..9e33b864c359
--- /dev/null
+++ b/arch/um/include/asm/bug.h
@@ -0,0 +1,6 @@
+#ifndef __UM_BUG_H
+#define __UM_BUG_H
+
+#include <asm-generic/bug.h>
+
+#endif
diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h
index fd5a1f365c95..3cce71413d0b 100644
--- a/arch/x86/include/asm/msr-index.h
+++ b/arch/x86/include/asm/msr-index.h
@@ -96,11 +96,15 @@
 #define MSR_IA32_MC0_ADDR               0x00000402
 #define MSR_IA32_MC0_MISC               0x00000403
 
+#define MSR_AMD64_MC0_MASK              0xc0010044
+
 #define MSR_IA32_MCx_CTL(x)             (MSR_IA32_MC0_CTL + 4*(x))
 #define MSR_IA32_MCx_STATUS(x)          (MSR_IA32_MC0_STATUS + 4*(x))
 #define MSR_IA32_MCx_ADDR(x)            (MSR_IA32_MC0_ADDR + 4*(x))
 #define MSR_IA32_MCx_MISC(x)            (MSR_IA32_MC0_MISC + 4*(x))
 
+#define MSR_AMD64_MCx_MASK(x)           (MSR_AMD64_MC0_MASK + (x))
+
 /* These are consecutive and not in the normal 4er MCE bank block */
 #define MSR_IA32_MC0_CTL2               0x00000280
 #define MSR_IA32_MCx_CTL2(x)            (MSR_IA32_MC0_CTL2 + (x))
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index 3ecece0217ef..3532d3bf8105 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -615,6 +615,25 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c)
         /* As a rule processors have APIC timer running in deep C states */
         if (c->x86 >= 0xf && !cpu_has_amd_erratum(amd_erratum_400))
                 set_cpu_cap(c, X86_FEATURE_ARAT);
+
+        /*
+         * Disable GART TLB Walk Errors on Fam10h. We do this here
+         * because this is always needed when GART is enabled, even in a
+         * kernel which has no MCE support built in.
+         */
+        if (c->x86 == 0x10) {
+                /*
+                 * BIOS should disable GartTlbWlk Errors themself. If
+                 * it doesn't do it here as suggested by the BKDG.
+                 *
+                 * Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=33012
+                 */
+                u64 mask;
+
+                rdmsrl(MSR_AMD64_MCx_MASK(4), mask);
+                mask |= (1 << 10);
+                wrmsrl(MSR_AMD64_MCx_MASK(4), mask);
+        }
 }
 
 #ifdef CONFIG_X86_32
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index c2871d3c71b6..8ed8908cc9f7 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -312,6 +312,26 @@ void __cpuinit smp_store_cpu_info(int id)
                 identify_secondary_cpu(c);
 }
 
+static void __cpuinit check_cpu_siblings_on_same_node(int cpu1, int cpu2)
+{
+        int node1 = early_cpu_to_node(cpu1);
+        int node2 = early_cpu_to_node(cpu2);
+
+        /*
+         * Our CPU scheduler assumes all logical cpus in the same physical cpu
+         * share the same node. But, buggy ACPI or NUMA emulation might assign
+         * them to different node. Fix it.
+         */
+        if (node1 != node2) {
+                pr_warning("CPU %d in node %d and CPU %d in node %d are in the same physical CPU. forcing same node %d\n",
+                           cpu1, node1, cpu2, node2, node2);
+
+                numa_remove_cpu(cpu1);
+                numa_set_node(cpu1, node2);
+                numa_add_cpu(cpu1);
+        }
+}
+
 static void __cpuinit link_thread_siblings(int cpu1, int cpu2)
 {
         cpumask_set_cpu(cpu1, cpu_sibling_mask(cpu2));
@@ -320,6 +340,7 @@ static void __cpuinit link_thread_siblings(int cpu1, int cpu2)
         cpumask_set_cpu(cpu2, cpu_core_mask(cpu1));
         cpumask_set_cpu(cpu1, cpu_llc_shared_mask(cpu2));
         cpumask_set_cpu(cpu2, cpu_llc_shared_mask(cpu1));
+        check_cpu_siblings_on_same_node(cpu1, cpu2);
 }
 
 
@@ -361,10 +382,12 @@ void __cpuinit set_cpu_sibling_map(int cpu)
                     per_cpu(cpu_llc_id, cpu) == per_cpu(cpu_llc_id, i)) {
                         cpumask_set_cpu(i, cpu_llc_shared_mask(cpu));
                         cpumask_set_cpu(cpu, cpu_llc_shared_mask(i));
+                        check_cpu_siblings_on_same_node(cpu, i);
                 }
                 if (c->phys_proc_id == cpu_data(i).phys_proc_id) {
                         cpumask_set_cpu(i, cpu_core_mask(cpu));
                         cpumask_set_cpu(cpu, cpu_core_mask(i));
+                        check_cpu_siblings_on_same_node(cpu, i);
                         /*
                          *  Does this new cpu bringup a new core?
                          */
diff --git a/arch/x86/platform/ce4100/falconfalls.dts b/arch/x86/platform/ce4100/falconfalls.dts
index dc701ea58546..2d6d226f2b10 100644
--- a/arch/x86/platform/ce4100/falconfalls.dts
+++ b/arch/x86/platform/ce4100/falconfalls.dts
@@ -74,6 +74,7 @@
                                 compatible = "intel,ce4100-pci", "pci";
                                 device_type = "pci";
                                 bus-range = <1 1>;
+                                reg = <0x0800 0x0 0x0 0x0 0x0>;
                                 ranges = <0x2000000 0 0xdffe0000 0x2000000 0 0xdffe0000 0 0x1000>;
 
                                 interrupt-parent = <&ioapic2>;
@@ -412,6 +413,7 @@
                                 #address-cells = <2>;
                                 #size-cells = <1>;
                                 compatible = "isa";
+                                reg = <0xf800 0x0 0x0 0x0 0x0>;
                                 ranges = <1 0 0 0 0 0x100>;
 
                                 rtc@70 {
diff --git a/arch/x86/platform/mrst/mrst.c b/arch/x86/platform/mrst/mrst.c
index 5c0207bf959b..275dbc19e2cf 100644
--- a/arch/x86/platform/mrst/mrst.c
+++ b/arch/x86/platform/mrst/mrst.c
@@ -97,11 +97,11 @@ static int __init sfi_parse_mtmr(struct sfi_table_header *table)
                         pentry->freq_hz, pentry->irq);
                         if (!pentry->irq)
                                 continue;
-                        mp_irq.type = MP_IOAPIC;
+                        mp_irq.type = MP_INTSRC;
                         mp_irq.irqtype = mp_INT;
 /* triggering mode edge bit 2-3, active high polarity bit 0-1 */
                         mp_irq.irqflag = 5;
-                        mp_irq.srcbus = 0;
+                        mp_irq.srcbus = MP_BUS_ISA;
                         mp_irq.srcbusirq = pentry->irq; /* IRQ */
                         mp_irq.dstapic = MP_APIC_ALL;
                         mp_irq.dstirq = pentry->irq;
@@ -168,10 +168,10 @@ int __init sfi_parse_mrtc(struct sfi_table_header *table)
         for (totallen = 0; totallen < sfi_mrtc_num; totallen++, pentry++) {
                 pr_debug("RTC[%d]: paddr = 0x%08x, irq = %d\n",
                         totallen, (u32)pentry->phys_addr, pentry->irq);
-                mp_irq.type = MP_IOAPIC;
+                mp_irq.type = MP_INTSRC;
                 mp_irq.irqtype = mp_INT;
                 mp_irq.irqflag = 0xf;   /* level trigger and active low */
-                mp_irq.srcbus = 0;
+                mp_irq.srcbus = MP_BUS_ISA;
                 mp_irq.srcbusirq = pentry->irq; /* IRQ */
                 mp_irq.dstapic = MP_APIC_ALL;
                 mp_irq.dstirq = pentry->irq;
@@ -282,7 +282,7 @@ void __init x86_mrst_early_setup(void)
         /* Avoid searching for BIOS MP tables */
         x86_init.mpparse.find_smp_config = x86_init_noop;
         x86_init.mpparse.get_smp_config = x86_init_uint_noop;
-
+        set_bit(MP_BUS_ISA, mp_bus_not_pci);
 }
 
 /*